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annotate libinterp/corefcn/file-io.cc @ 22720:766b0163b3b7 stable

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doc: Don't create @tables of type @code with @qcode entries. * mk-opts.pl: Change table type for generated options to @asis. * file-io.cc (Fpopen): Change table type for options to @asis.
author Rik <rik@octave.org>
date Thu, 03 Nov 2016 14:17:37 -0700
parents 1e81abd0314a
children 37e53505e2eb
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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3 Copyright (C) 1993-2016 John W. Eaton
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4
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5 This file is part of Octave.
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6
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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20
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21 */
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22
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23 // Originally written by John C. Campbell <jcc@bevo.che.wisc.edu>
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24 //
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25 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of
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26 // the following functions:
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27 //
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28 // popen
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29 // pclose
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30 // execute (now popen2.m)
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31 // sync_system (now merged with system)
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32 // async_system (now merged with system)
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33
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34 // Extensively revised by John W. Eaton <jwe@octave.org>,
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35 // April 1996.
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36
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37 #if defined (HAVE_CONFIG_H)
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38 # include "config.h"
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39 #endif
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40
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41 #include <cerrno>
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42 #include <cstdio>
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43
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44 #include <iostream>
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45 #include <limits>
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46 #include <stack>
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47 #include <string>
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48 #include <vector>
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49
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50 #if defined (HAVE_ZLIB_H)
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51 # include <zlib.h>
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52 #endif
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53
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54 #include "error.h"
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55 #include "file-ops.h"
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56 #include "file-stat.h"
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57 #include "lo-ieee.h"
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58 #include "mkostemp-wrapper.h"
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59 #include "oct-env.h"
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60 #include "oct-locbuf.h"
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61 #include "tmpfile-wrapper.h"
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62 #include "unistd-wrappers.h"
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63
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64 #include "defun.h"
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65 #include "errwarn.h"
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66 #include "file-io.h"
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67 #include "load-path.h"
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68 #include "oct-fstrm.h"
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69 #include "oct-iostrm.h"
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70 #include "oct-map.h"
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71 #include "oct-prcstrm.h"
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72 #include "oct-stream.h"
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73 #include "oct-strstrm.h"
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74 #include "ov.h"
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75 #include "ovl.h"
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76 #include "pager.h"
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77 #include "sysdep.h"
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78 #include "utils.h"
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79 #include "variables.h"
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80
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81 static octave_value stdin_file;
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82 static octave_value stdout_file;
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83 static octave_value stderr_file;
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84
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85 static octave_stream stdin_stream;
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86 static octave_stream stdout_stream;
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87 static octave_stream stderr_stream;
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88
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89 void
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90 initialize_file_io (void)
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91 {
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92 stdin_stream = octave_istream::create (&std::cin, "stdin");
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93
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94 // This uses octave_stdout (see pager.h), not std::cout so that Octave's
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95 // standard output stream will pass through the pager.
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96
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97 stdout_stream = octave_ostream::create (&octave_stdout, "stdout");
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98
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99 stderr_stream = octave_ostream::create (&std::cerr, "stderr");
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100
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101 stdin_file = octave_stream_list::insert (stdin_stream);
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102 stdout_file = octave_stream_list::insert (stdout_stream);
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103 stderr_file = octave_stream_list::insert (stderr_stream);
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104 }
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105
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106 void
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107 close_files (void)
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108 {
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109 octave_stream_list::clear ();
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110 }
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111
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112 // List of files to delete when we exit or crash.
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113 //
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114 // FIXME: this should really be static,
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115 // but that causes problems on some systems.
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116 std::stack <std::string> tmp_files;
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117
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118 void
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119 mark_for_deletion (const std::string& file)
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120 {
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121 tmp_files.push (file);
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122 }
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123
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124 void
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125 cleanup_tmp_files (void)
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126 {
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127 while (! tmp_files.empty ())
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128 {
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129 std::string filename = tmp_files.top ();
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130 tmp_files.pop ();
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131 octave_unlink_wrapper (filename.c_str ());
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132 }
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133 }
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134
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135 static void
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136 normalize_fopen_mode (std::string& mode, bool& use_zlib)
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137 {
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138 use_zlib = false;
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139
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140 if (! mode.empty ())
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141 {
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142 // Could probably be faster, but does it really matter?
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143
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144 // Accept 'W', 'R', and 'A' as 'w', 'r', and 'a' but we warn about
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145 // them because Matlab says they don't perform "automatic
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146 // flushing" but we don't know precisely what action that implies.
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147
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148 size_t pos = mode.find ('W');
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149
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150 if (pos != std::string::npos)
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151 {
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152 warning_with_id ("Octave:fopen-mode",
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153 "fopen: treating mode \"W\" as equivalent to \"w\"");
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154 mode[pos] = 'w';
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155 }
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156
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157 pos = mode.find ('R');
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158
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159 if (pos != std::string::npos)
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160 {
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161 warning_with_id ("Octave:fopen-mode",
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162 "fopen: treating mode \"R\" as equivalent to \"r\"");
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163 mode[pos] = 'r';
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164 }
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165
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166 pos = mode.find ('A');
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167
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168 if (pos != std::string::npos)
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169 {
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170 warning_with_id ("Octave:fopen-mode",
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171 "fopen: treating mode \"A\" as equivalent to \"a\"");
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172 mode[pos] = 'a';
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173 }
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174
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175 pos = mode.find ('z');
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176
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177 if (pos != std::string::npos)
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178 {
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179 #if defined (HAVE_ZLIB)
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180 use_zlib = true;
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181 mode.erase (pos, 1);
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182 #else
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183 err_disabled_feature ("", "gzipped files (zlib)");
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184 #endif
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185 }
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186
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187 // Use binary mode if 't' is not specified, but don't add
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188 // 'b' if it is already present.
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189
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190 size_t bpos = mode.find ('b');
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191 size_t tpos = mode.find ('t');
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192
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193 if (bpos == std::string::npos && tpos == std::string::npos)
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194 mode += 'b';
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195 }
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196 }
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197
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198 static std::ios::openmode
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199 fopen_mode_to_ios_mode (const std::string& mode)
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200 {
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201 std::ios::openmode retval = std::ios::in;
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202
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203 if (mode == "rt")
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204 retval = std::ios::in;
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205 else if (mode == "wt")
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206 retval = std::ios::out | std::ios::trunc;
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207 else if (mode == "at")
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208 retval = std::ios::out | std::ios::app;
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209 else if (mode == "r+t" || mode == "rt+")
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210 retval = std::ios::in | std::ios::out;
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211 else if (mode == "w+t" || mode == "wt+")
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212 retval = std::ios::in | std::ios::out | std::ios::trunc;
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213 else if (mode == "a+t" || mode == "at+")
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214 retval = std::ios::in | std::ios::out | std::ios::app;
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215 else if (mode == "rb" || mode == "r")
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216 retval = std::ios::in | std::ios::binary;
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217 else if (mode == "wb" || mode == "w")
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218 retval = std::ios::out | std::ios::trunc | std::ios::binary;
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219 else if (mode == "ab" || mode == "a")
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220 retval = std::ios::out | std::ios::app | std::ios::binary;
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221 else if (mode == "r+b" || mode == "rb+" || mode == "r+")
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222 retval = std::ios::in | std::ios::out | std::ios::binary;
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223 else if (mode == "w+b" || mode == "wb+" || mode == "w+")
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224 retval = (std::ios::in | std::ios::out | std::ios::trunc
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225 | std::ios::binary);
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226 else if (mode == "a+b" || mode == "ab+" || mode == "a+")
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227 retval = (std::ios::in | std::ios::out | std::ios::app
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228 | std::ios::binary);
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229 else
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230 error ("invalid mode specified");
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231
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232 return retval;
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233 }
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234
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235 DEFUN (fclose, args, ,
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236 doc: /* -*- texinfo -*-
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237 @deftypefn {} {} fclose (@var{fid})
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238 @deftypefnx {} {} fclose ("all")
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239 @deftypefnx {} {@var{status} =} fclose ("all")
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240 Close the file specified by the file descriptor @var{fid}.
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241
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242 If successful, @code{fclose} returns 0, otherwise, it returns -1. The
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243 second form of the @code{fclose} call closes all open files except
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244 @code{stdin}, @code{stdout}, @code{stderr}, and any FIDs associated
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245 with gnuplot.
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246 @seealso{fopen, fflush, freport}
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247 @end deftypefn */)
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248 {
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249 if (args.length () != 1)
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250 print_usage ();
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251
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252 return ovl (octave_stream_list::remove (args(0), "fclose"));
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253 }
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254
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255 DEFUN (fclear, args, ,
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256 doc: /* -*- texinfo -*-
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257 @deftypefn {} {} fclear (@var{fid})
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258 Clear the stream state for the file specified by the file descriptor
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259 @var{fid}.
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260 @seealso{ferror, fopen}
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261 @end deftypefn */)
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262 {
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263 if (args.length () != 1)
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264 print_usage ();
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265
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266 int fid = octave_stream_list::get_file_number (args(0));
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267
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268 octave_stream os = octave_stream_list::lookup (fid, "fclear");
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269
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270 os.clearerr ();
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271
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272 return ovl ();
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273 }
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274
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275 DEFUN (fflush, args, ,
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276 doc: /* -*- texinfo -*-
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277 @deftypefn {} {} fflush (@var{fid})
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278 Flush output to file descriptor @var{fid}.
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279
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280 @code{fflush} returns 0 on success and an OS dependent error value
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281 (@minus{}1 on Unix) on error.
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282
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283 Programming Note: Flushing is useful for ensuring that all pending output
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284 makes it to the screen before some other event occurs. For example, it is
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285 always a good idea to flush the standard output stream before calling
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286 @code{input}.
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287 @seealso{fopen, fclose}
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288 @end deftypefn */)
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289 {
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290 if (args.length () != 1)
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291 print_usage ();
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292
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293 octave_value retval = -1;
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294
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295 // FIXME: any way to avoid special case for stdout?
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296 int fid = octave_stream_list::get_file_number (args(0));
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297
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298 if (fid == 1)
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299 {
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300 flush_octave_stdout ();
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301
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302 retval = 0;
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303 }
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304 else
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305 {
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306 octave_stream os = octave_stream_list::lookup (fid, "fflush");
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307
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308 retval = os.flush ();
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309 }
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310
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311 return retval;
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312 }
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313
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314 DEFUN (fgetl, args, ,
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315 doc: /* -*- texinfo -*-
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316 @deftypefn {} {@var{str} =} fgetl (@var{fid})
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317 @deftypefnx {} {@var{str} =} fgetl (@var{fid}, @var{len})
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318 Read characters from a file, stopping after a newline, or EOF,
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319 or @var{len} characters have been read.
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320
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321 The characters read, excluding the possible trailing newline, are returned
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322 as a string.
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323
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324 If @var{len} is omitted, @code{fgetl} reads until the next newline
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325 character.
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326
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327 If there are no more characters to read, @code{fgetl} returns @minus{}1.
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328
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329 To read a line and return the terminating newline see @code{fgets}.
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330 @seealso{fgets, fscanf, fread, fopen}
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331 @end deftypefn */)
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332 {
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333 static std::string who = "fgetl";
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334
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335 int nargin = args.length ();
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336
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337 if (nargin < 1 || nargin > 2)
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338 print_usage ();
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339
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340 octave_stream os = octave_stream_list::lookup (args(0), who);
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341
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342 octave_value len_arg = (nargin == 2) ? args(1) : octave_value ();
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343
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344 bool err = false;
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345
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346 std::string tmp = os.getl (len_arg, err, who);
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347
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348 if (! err)
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349 return ovl (tmp, tmp.length ());
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350 else
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351 return ovl (-1, 0);
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352 }
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353
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354 DEFUN (fgets, args, ,
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355 doc: /* -*- texinfo -*-
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356 @deftypefn {} {@var{str} =} fgets (@var{fid})
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357 @deftypefnx {} {@var{str} =} fgets (@var{fid}, @var{len})
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358 Read characters from a file, stopping after a newline, or EOF,
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359 or @var{len} characters have been read.
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360
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361 The characters read, including the possible trailing newline, are returned
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362 as a string.
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363
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364 If @var{len} is omitted, @code{fgets} reads until the next newline
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365 character.
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366
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367 If there are no more characters to read, @code{fgets} returns @minus{}1.
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368
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369 To read a line and discard the terminating newline see @code{fgetl}.
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370 @seealso{fputs, fgetl, fscanf, fread, fopen}
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371 @end deftypefn */)
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372 {
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373 static std::string who = "fgets";
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374
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375 int nargin = args.length ();
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376
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377 if (nargin < 1 || nargin > 2)
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378 print_usage ();
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379
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380 octave_stream os = octave_stream_list::lookup (args(0), who);
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381
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382 octave_value len_arg = (nargin == 2) ? args(1) : octave_value ();
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383
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384 bool err = false;
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385
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386 std::string tmp = os.gets (len_arg, err, who);
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387
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388 if (! err)
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389 return ovl (tmp, tmp.length ());
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390 else
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391 return ovl (-1.0, 0.0);
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diff changeset
392 }
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393
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394 DEFUN (fskipl, args, ,
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395 doc: /* -*- texinfo -*-
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396 @deftypefn {} {@var{nlines} =} fskipl (@var{fid})
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397 @deftypefnx {} {@var{nlines} =} fskipl (@var{fid}, @var{count})
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398 @deftypefnx {} {@var{nlines} =} fskipl (@var{fid}, Inf)
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diff changeset
399 Read and skip @var{count} lines from the file specified by the file
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400 descriptor @var{fid}.
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401
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402 @code{fskipl} discards characters until an end-of-line is encountered
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403 exactly @var{count}-times, or until the end-of-file marker is found.
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404
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405 If @var{count} is omitted, it defaults to 1. @var{count} may also be
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406 @code{Inf}, in which case lines are skipped until the end of the file.
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407 This form is suitable for counting the number of lines in a file.
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diff changeset
408
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409 Returns the number of lines skipped (end-of-line sequences encountered).
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410 @seealso{fgetl, fgets, fscanf, fopen}
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411 @end deftypefn */)
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412 {
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413 static std::string who = "fskipl";
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414
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415 int nargin = args.length ();
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diff changeset
416
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417 if (nargin < 1 || nargin > 2)
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418 print_usage ();
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diff changeset
419
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420 octave_stream os = octave_stream_list::lookup (args(0), who);
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diff changeset
421
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422 octave_value count_arg = (nargin == 2) ? args(1) : octave_value ();
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diff changeset
423
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
424 bool err = false;
9701
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
425
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
426 off_t tmp = os.skipl (count_arg, err, who);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
427
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
428 if (! err)
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
429 return ovl (tmp);
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
430 else
20941
a4f5da7c5463 maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents: 20940
diff changeset
431 return ovl ();
9701
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
432 }
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
433
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
434 static octave_stream
16590
2d968b7830d6 handle A, R, and W fopen modes correctly (bug #38851)
John W. Eaton <jwe@octave.org>
parents: 16308
diff changeset
435 do_stream_open (const std::string& name, const std::string& mode_arg,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
436 const std::string& arch, int& fid)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
437 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
438 octave_stream retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
439
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
440 fid = -1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
441
16590
2d968b7830d6 handle A, R, and W fopen modes correctly (bug #38851)
John W. Eaton <jwe@octave.org>
parents: 16308
diff changeset
442 std::string mode = mode_arg;
2d968b7830d6 handle A, R, and W fopen modes correctly (bug #38851)
John W. Eaton <jwe@octave.org>
parents: 16308
diff changeset
443 bool use_zlib = false;
2d968b7830d6 handle A, R, and W fopen modes correctly (bug #38851)
John W. Eaton <jwe@octave.org>
parents: 16308
diff changeset
444 normalize_fopen_mode (mode, use_zlib);
2d968b7830d6 handle A, R, and W fopen modes correctly (bug #38851)
John W. Eaton <jwe@octave.org>
parents: 16308
diff changeset
445
4036
1432e11733d1 [project @ 2002-08-12 18:38:40 by jwe]
jwe
parents: 4028
diff changeset
446 std::ios::openmode md = fopen_mode_to_ios_mode (mode);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
447
21739
c4ab2e54f100 use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents: 21736
diff changeset
448 octave::mach_info::float_format flt_fmt =
c4ab2e54f100 use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents: 21736
diff changeset
449 octave::mach_info::string_to_float_format (arch);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
450
21733
cb0fdd941d84 use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
451 std::string fname = octave::sys::file_ops::tilde_expand (name);
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
452
21736
0504351a45e6 use namespace for file_stat classes
John W. Eaton <jwe@octave.org>
parents: 21733
diff changeset
453 octave::sys::file_stat fs (fname);
7730
b68e44c90afe file-io.cc (do_stream_open): return -1 for directories
John W. Eaton <jwe@octave.org>
parents: 7708
diff changeset
454
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
455 if (! (md & std::ios::out))
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
456 fname = find_data_file_in_load_path ("fopen", fname);
11586
12df7854fa7c strip trailing whitespace from source files
John W. Eaton <jwe@octave.org>
parents: 11572
diff changeset
457
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
458 if (! fs.is_dir ())
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
459 {
6905
aee959a21c4b [project @ 2007-09-17 16:00:30 by jwe]
jwe
parents: 6838
diff changeset
460 #if defined (HAVE_ZLIB)
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
461 if (use_zlib)
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
462 {
21942
aab79a1885cc limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents: 21919
diff changeset
463 FILE *fptr = std::fopen (fname.c_str (), mode.c_str ());
11004
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
464
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
465 int fd = fileno (fptr);
11004
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
466
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
467 gzFile gzf = ::gzdopen (fd, mode.c_str ());
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
468
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
469 if (fptr)
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
470 retval = octave_zstdiostream::create (fname, gzf, fd,
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
471 md, flt_fmt);
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
472 else
21942
aab79a1885cc limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents: 21919
diff changeset
473 retval.error (std::strerror (errno));
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
474 }
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
475 else
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
476 #endif
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
477 {
21942
aab79a1885cc limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents: 21919
diff changeset
478 FILE *fptr = std::fopen (fname.c_str (), mode.c_str ());
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
479
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
480 retval = octave_stdiostream::create (fname, fptr, md,
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
481 flt_fmt);
7730
b68e44c90afe file-io.cc (do_stream_open): return -1 for directories
John W. Eaton <jwe@octave.org>
parents: 7708
diff changeset
482
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
483 if (! fptr)
21942
aab79a1885cc limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents: 21919
diff changeset
484 retval.error (std::strerror (errno));
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
485 }
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
486
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
487 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
488
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
489 return retval;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
490 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
491
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
492 static octave_stream
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
493 do_stream_open (const octave_value& tc_name, const octave_value& tc_mode,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
494 const octave_value& tc_arch, const char *fcn, int& fid)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
495 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
496 octave_stream retval;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
497
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
498 fid = -1;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
499
20713
2469d78a1d8b Consistently use 'filename' rather than 'file name' throughout code base.
Rik <rik@octave.org>
parents: 20704
diff changeset
500 std::string name = tc_name.xstring_value ("%s: filename must be a string", fcn);
20700
68e3a747ca02 rename octave_value value extractors that accept error message args
John W. Eaton <jwe@octave.org>
parents: 20687
diff changeset
501 std::string mode = tc_mode.xstring_value ("%s: file mode must be a string", fcn);
68e3a747ca02 rename octave_value value extractors that accept error message args
John W. Eaton <jwe@octave.org>
parents: 20687
diff changeset
502 std::string arch = tc_arch.xstring_value ("%s: architecture type must be a string", fcn);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
503
20581
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
504 retval = do_stream_open (name, mode, arch, fid);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
505
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
506 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
507 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
508
11146
69b2f237060e file-io.cc (Ffopen): argument parsing tweak
John W. Eaton <jwe@octave.org>
parents: 11081
diff changeset
509 DEFUN (fopen, args, nargout,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
510 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
511 @deftypefn {} {@var{fid} =} fopen (@var{name})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
512 @deftypefnx {} {@var{fid} =} fopen (@var{name}, @var{mode})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
513 @deftypefnx {} {@var{fid} =} fopen (@var{name}, @var{mode}, @var{arch})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
514 @deftypefnx {} {[@var{fid}, @var{msg}] =} fopen (@dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
515 @deftypefnx {} {@var{fid_list} =} fopen ("all")
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
516 @deftypefnx {} {[@var{file}, @var{mode}, @var{arch}] =} fopen (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
517 Open a file for low-level I/O or query open files and file descriptors.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
518
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
519 The first form of the @code{fopen} function opens the named file with
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
520 the specified mode (read-write, read-only, etc.) and architecture
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
521 interpretation (IEEE big endian, IEEE little endian, etc.), and returns
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
522 an integer value that may be used to refer to the file later. If an
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
523 error occurs, @var{fid} is set to @minus{}1 and @var{msg} contains the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
524 corresponding system error message. The @var{mode} is a one or two
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
525 character string that specifies whether the file is to be opened for
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
526 reading, writing, or both.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
527
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
528 The second form of the @code{fopen} function returns a vector of file ids
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
529 corresponding to all the currently open files, excluding the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
530 @code{stdin}, @code{stdout}, and @code{stderr} streams.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
531
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
532 The third form of the @code{fopen} function returns information about the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
533 open file given its file id.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
534
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
535 For example,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
536
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
537 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
538 myfile = fopen ("splat.dat", "r", "ieee-le");
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
539 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
540
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
541 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
542 opens the file @file{splat.dat} for reading. If necessary, binary
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
543 numeric values will be read assuming they are stored in IEEE format with
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
544 the least significant bit first, and then converted to the native
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
545 representation.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
546
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
547 Opening a file that is already open simply opens it again and returns a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
548 separate file id. It is not an error to open a file several times,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
549 though writing to the same file through several different file ids may
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
550 produce unexpected results.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
551
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
552 The possible values @samp{mode} may have are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
553
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
554 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
555 @item @samp{r} (default)
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
556 Open a file for reading.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
557
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
558 @item @samp{w}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
559 Open a file for writing. The previous contents are discarded.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
560
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
561 @item @samp{a}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
562 Open or create a file for writing at the end of the file.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
563
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
564 @item @samp{r+}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
565 Open an existing file for reading and writing.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
566
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
567 @item @samp{w+}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
568 Open a file for reading or writing. The previous contents are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
569 discarded.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
570
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
571 @item @samp{a+}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
572 Open or create a file for reading or writing at the end of the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
573 file.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
574 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
575
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
576 Append a @qcode{"t"} to the mode string to open the file in text mode or a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
577 @qcode{"b"} to open in binary mode. On Windows and Macintosh systems,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
578 text mode reading and writing automatically converts linefeeds to the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
579 appropriate line end character for the system (carriage-return linefeed on
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
580 Windows, carriage-return on Macintosh). The default when no mode is
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
581 specified is binary mode.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
582
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
583 Additionally, you may append a @qcode{"z"} to the mode string to open a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
584 gzipped file for reading or writing. For this to be successful, you
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
585 must also open the file in binary mode.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
586
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
587 The parameter @var{arch} is a string specifying the default data format
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
588 for the file. Valid values for @var{arch} are:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
589
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
590 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
591 @item @qcode{"native"} or @qcode{"n"} (default)
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
592 The format of the current machine.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
593
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
594 @item @qcode{"ieee-be"} or @qcode{"b"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
595 IEEE big endian format.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
596
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
597 @item @qcode{"ieee-le"} or @qcode{"l"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
598 IEEE little endian format.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
599 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
600
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
601 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
602 However, conversions are currently only supported for @samp{native},
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
603 @samp{ieee-be}, and @samp{ieee-le} formats.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
604
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
605 When opening a new file that does not yet exist, permissions will be set to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
606 @code{0666 - @var{umask}}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
607 @seealso{fclose, fgets, fgetl, fscanf, fread, fputs, fdisp, fprintf, fwrite, fskipl, fseek, frewind, ftell, feof, ferror, fclear, fflush, freport, umask}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
608 @end deftypefn */)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
609 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
610 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
611
20861
6774cc464ea0 * file-io.cc (Ffopen): Fix nargin range check, fixes cset f2cd811f0f9e
Mike Miller <mtmiller@octave.org>
parents: 20853
diff changeset
612 if (nargin < 1 || nargin > 3)
20846
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
613 print_usage ();
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
614
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
615 octave_value_list retval = ovl (-1.0);
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
616
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
617 if (nargin == 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
618 {
12896
a19b50f6697f Correctly allow single string input form of fopen() (Bug #33535).
Rik <octave@nomad.inbox5.com>
parents: 12775
diff changeset
619 if (args(0).is_string ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
620 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
621 // If there is only one argument and it is a string but it
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
622 // is not the string "all", we assume it is a file to open
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
623 // with MODE = "r". To open a file called "all", you have
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
624 // to supply more than one argument.
12896
a19b50f6697f Correctly allow single string input form of fopen() (Bug #33535).
Rik <octave@nomad.inbox5.com>
parents: 12775
diff changeset
625 if (nargout < 2 && args(0).string_value () == "all")
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
626 return octave_stream_list::open_file_numbers ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
627 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
628 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
629 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
630 string_vector tmp = octave_stream_list::get_info (args(0));
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
631
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
632 retval = ovl (tmp(0), tmp(1), tmp(2));
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
633
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
634 return retval;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
635 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
636 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
637
20846
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
638 octave_value mode = (nargin == 2 || nargin == 3)
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
639 ? args(1) : octave_value ("r");
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
640
20846
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
641 octave_value arch = (nargin == 3)
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
642 ? args(2) : octave_value ("native");
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
643
20846
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
644 int fid = -1;
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
645
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
646 octave_stream os = do_stream_open (args(0), mode, arch, "fopen", fid);
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
647
20846
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
648 if (os)
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
649 retval = ovl (octave_stream_list::insert (os), "");
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
650 else
20846
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
651 {
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
652 int error_number = 0;
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
653
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
654 retval = ovl (-1.0, os.error (false, error_number));
20846
f2cd811f0f9e maint: Refactor C++ calls to print_usage to resemble m-files (2015 code sprint)
Mike Miller <mtmiller@octave.org>
parents: 20819
diff changeset
655 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
656
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
657 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
658 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
659
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
660 DEFUN (freport, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
661 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
662 @deftypefn {} {} freport ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
663 Print a list of which files have been opened, and whether they are open
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
664 for reading, writing, or both.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
665
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
666 For example:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
667
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
668 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
669 @group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
670 freport ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
671
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
672 @print{} number mode arch name
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
673 @print{} ------ ---- ---- ----
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
674 @print{} 0 r ieee-le stdin
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
675 @print{} 1 w ieee-le stdout
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
676 @print{} 2 w ieee-le stderr
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
677 @print{} 3 r ieee-le myfile
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
678 @end group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
679 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
680 @seealso{fopen, fclose, is_valid_file_id}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
681 @end deftypefn */)
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
682 {
20819
f428cbe7576f eliminate unnecessary uses of nargin
John W. Eaton <jwe@octave.org>
parents: 20812
diff changeset
683 if (args.length () > 0)
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
684 warning ("freport: ignoring extra arguments");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
685
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
686 octave_stdout << octave_stream_list::list_open_files ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
687
21078
49852ff04747 maint: Remove unnecessary declarations of retval.
Rik <rik@octave.org>
parents: 21055
diff changeset
688 return ovl ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
689 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
690
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
691 DEFUN (frewind, args, nargout,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
692 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
693 @deftypefn {} {} frewind (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
694 @deftypefnx {} {@var{status} =} frewind (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
695 Move the file pointer to the beginning of the file specified by file
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
696 descriptor @var{fid}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
697
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
698 @code{frewind} returns 0 for success, and -1 if an error is encountered. It
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
699 is equivalent to @code{fseek (@var{fid}, 0, SEEK_SET)}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
700 @seealso{fseek, ftell, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
701 @end deftypefn */)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
702 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
703 if (args.length () != 1)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
704 print_usage ();
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
705
20812
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20805
diff changeset
706 int result = -1;
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20805
diff changeset
707
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
708 octave_stream os = octave_stream_list::lookup (args(0), "frewind");
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
709
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
710 result = os.rewind ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
711
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
712 if (nargout > 0)
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
713 return ovl (result);
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
714 else
20941
a4f5da7c5463 maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents: 20940
diff changeset
715 return ovl ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
716 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
717
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
718 DEFUN (fseek, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
719 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
720 @deftypefn {} {} fseek (@var{fid}, @var{offset})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
721 @deftypefnx {} {} fseek (@var{fid}, @var{offset}, @var{origin})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
722 @deftypefnx {} {@var{status} =} fseek (@dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
723 Set the file pointer to the location @var{offset} within the file @var{fid}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
724
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
725 The pointer is positioned @var{offset} characters from the @var{origin},
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
726 which may be one of the predefined variables @w{@code{SEEK_CUR}} (current
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
727 position), @w{@code{SEEK_SET}} (beginning), or @w{@code{SEEK_END}} (end of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
728 file) or strings @qcode{"cof"}, @qcode{"bof"} or @qcode{"eof"}. If
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
729 @var{origin} is omitted, @w{@code{SEEK_SET}} is assumed. @var{offset} may
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
730 be positive, negative, or zero but not all combinations of @var{origin} and
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
731 @var{offset} can be realized.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
732
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
733 @code{fseek} returns 0 on success and -1 on error.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
734 @seealso{fskipl, frewind, ftell, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
735 @end deftypefn */)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
736 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
737 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
738
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
739 if (nargin < 2 || nargin > 3)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
740 print_usage ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
741
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
742 octave_stream os = octave_stream_list::lookup (args(0), "fseek");
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
743
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
744 octave_value origin_arg = (nargin == 3) ? args(2) : octave_value (-1.0);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
745
21127
df7891224709 maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents: 21126
diff changeset
746 return ovl (os.seek (args(1), origin_arg));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
747 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
748
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
749 DEFUN (ftell, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
750 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
751 @deftypefn {} {@var{pos} =} ftell (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
752 Return the position of the file pointer as the number of characters from the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
753 beginning of the file specified by file descriptor @var{fid}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
754 @seealso{fseek, frewind, feof, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
755 @end deftypefn */)
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
756 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
757 if (args.length () != 1)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
758 print_usage ();
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
759
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
760 octave_stream os = octave_stream_list::lookup (args(0), "ftell");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
761
21127
df7891224709 maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents: 21126
diff changeset
762 return ovl (os.tell ());
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
763 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
764
3737
b736f8b8f0a1 [project @ 2000-11-16 18:01:08 by jwe]
jwe
parents: 3569
diff changeset
765 DEFUN (fprintf, args, nargout,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
766 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
767 @deftypefn {} {} fprintf (@var{fid}, @var{template}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
768 @deftypefnx {} {} fprintf (@var{template}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
769 @deftypefnx {} {@var{numbytes} =} fprintf (@dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
770 This function is equivalent to @code{printf}, except that the output is
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
771 written to the file descriptor @var{fid} instead of @code{stdout}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
772
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
773 If @var{fid} is omitted, the output is written to @code{stdout} making the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
774 function exactly equivalent to @code{printf}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
775
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
776 The optional output returns the number of bytes written to the file.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
777
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
778 Implementation Note: For compatibility with @sc{matlab}, escape sequences in
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
779 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
780 expanded even when the template string is defined with single quotes.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
781 @seealso{fputs, fdisp, fwrite, fscanf, printf, sprintf, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
782 @end deftypefn */)
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
783 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
784 static std::string who = "fprintf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
785
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
786 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
787
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
788 if (! (nargin > 1 || (nargin > 0 && args(0).is_string ())))
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
789 print_usage ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
790
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
791 int result;
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
792
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
793 octave_stream os;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
794 int fmt_n = 0;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
795
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
796 if (args(0).is_string ())
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
797 os = octave_stream_list::lookup (1, who);
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
798 else
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
799 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
800 fmt_n = 1;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
801 os = octave_stream_list::lookup (args(0), who);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
802 }
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
803
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
804 if (! args(fmt_n).is_string ())
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
805 error ("%s: format TEMPLATE must be a string", who.c_str ());
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
806
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
807 octave_value_list tmp_args;
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
808
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
809 if (nargin > 1 + fmt_n)
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
810 {
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
811 tmp_args.resize (nargin-fmt_n-1, octave_value ());
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
812
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
813 for (int i = fmt_n + 1; i < nargin; i++)
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
814 tmp_args(i-fmt_n-1) = args(i);
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
815 }
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
816
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
817 result = os.printf (args(fmt_n), tmp_args, who);
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
818
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
819 if (nargout > 0)
21127
df7891224709 maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents: 21126
diff changeset
820 return ovl (result);
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
821 else
20941
a4f5da7c5463 maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents: 20940
diff changeset
822 return ovl ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
823 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
824
21634
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
825 DEFUN (printf, args, nargout,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
826 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
827 @deftypefn {} {} printf (@var{template}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
828 Print optional arguments under the control of the template string
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
829 @var{template} to the stream @code{stdout} and return the number of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
830 characters printed.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
831 @ifclear OCTAVE_MANUAL
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
832
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
833 See the Formatted Output section of the GNU Octave manual for a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
834 complete description of the syntax of the template string.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
835 @end ifclear
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
836
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
837 Implementation Note: For compatibility with @sc{matlab}, escape sequences in
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
838 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
839 expanded even when the template string is defined with single quotes.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
840 @seealso{fprintf, sprintf, scanf}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
841 @end deftypefn */)
21634
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
842 {
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
843 static std::string who = "printf";
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
844
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
845 int nargin = args.length ();
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
846
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
847 if (nargin == 0)
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
848 print_usage ();
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
849
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
850 int result;
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
851
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
852 if (! args(0).is_string ())
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
853 error ("%s: format TEMPLATE must be a string", who.c_str ());
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
854
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
855 octave_value_list tmp_args;
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
856
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
857 if (nargin > 1)
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
858 {
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
859 tmp_args.resize (nargin-1, octave_value ());
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
860
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
861 for (int i = 1; i < nargin; i++)
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
862 tmp_args(i-1) = args(i);
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
863 }
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
864
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
865 result = stdout_stream.printf (args(0), tmp_args, who);
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
866
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
867 if (nargout > 0)
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
868 return ovl (result);
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
869 else
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
870 return ovl ();
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
871 }
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
872
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
873 DEFUN (fputs, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
874 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
875 @deftypefn {} {} fputs (@var{fid}, @var{string})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
876 @deftypefnx {} {@var{status} =} fputs (@var{fid}, @var{string})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
877 Write the string @var{string} to the file with file descriptor @var{fid}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
878
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
879 The string is written to the file with no additional formatting. Use
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
880 @code{fdisp} instead to automatically append a newline character appropriate
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
881 for the local machine.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
882
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
883 Return a non-negative number on success or EOF on error.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
884 @seealso{fdisp, fprintf, fwrite, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
885 @end deftypefn */)
21634
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
886 {
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
887 static std::string who = "fputs";
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
888
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
889 if (args.length () != 2)
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
890 print_usage ();
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
891
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
892 octave_stream os = octave_stream_list::lookup (args(0), who);
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
893
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
894 return ovl (os.puts (args(1), who));
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
895 }
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
896
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
897 DEFUN (puts, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
898 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
899 @deftypefn {} {} puts (@var{string})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
900 @deftypefnx {} {@var{status} =} puts (@var{string})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
901 Write a string to the standard output with no formatting.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
902
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
903 The string is written verbatim to the standard output. Use @code{disp} to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
904 automatically append a newline character appropriate for the local machine.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
905
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
906 Return a non-negative number on success and EOF on error.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
907 @seealso{fputs, disp}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
908 @end deftypefn */)
21634
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
909 {
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
910 static std::string who = "puts";
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
911
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
912 if (args.length () != 1)
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
913 print_usage ();
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
914
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
915 return ovl (stdout_stream.puts (args(0), who));
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
916 }
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
917
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
918 DEFUN (sprintf, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
919 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
920 @deftypefn {} {} sprintf (@var{template}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
921 This is like @code{printf}, except that the output is returned as a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
922 string.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
923
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
924 Unlike the C library function, which requires you to provide a suitably
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
925 sized string as an argument, Octave's @code{sprintf} function returns the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
926 string, automatically sized to hold all of the items converted.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
927
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
928 Implementation Note: For compatibility with @sc{matlab}, escape sequences in
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
929 the template string (e.g., @qcode{"@xbackslashchar{}n"} => newline) are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
930 expanded even when the template string is defined with single quotes.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
931 @seealso{printf, fprintf, sscanf}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
932 @end deftypefn */)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
933 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
934 static std::string who = "sprintf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
935
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
936 int nargin = args.length ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
937
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
938 if (nargin == 0)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
939 print_usage ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
940
21506
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
941 // We don't use octave_ostrstream::create here because need direct
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
942 // access to the OSTR object so that we can extract a string object
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
943 // from it to return.
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
944 octave_ostrstream *ostr = new octave_ostrstream ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
945
21506
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
946 // The octave_stream destructor will delete OSTR for us.
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
947 octave_stream os (ostr);
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
948
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
949 if (! os.is_valid ())
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
950 error ("%s: unable to create output buffer", who.c_str ());
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
951
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
952 octave_value fmt_arg = args(0);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
953
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
954 if (! fmt_arg.is_string ())
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
955 error ("%s: format TEMPLATE must be a string", who.c_str ());
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
956
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
957 octave_value_list retval (3);
19727
3c3b9fce7d2b improve compatibility of sprintf function.
John W. Eaton <jwe@octave.org>
parents: 19697
diff changeset
958
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
959 octave_value_list tmp_args;
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
960 if (nargin > 1)
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
961 {
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
962 tmp_args.resize (nargin-1, octave_value ());
19727
3c3b9fce7d2b improve compatibility of sprintf function.
John W. Eaton <jwe@octave.org>
parents: 19697
diff changeset
963
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
964 for (int i = 1; i < nargin; i++)
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
965 tmp_args(i-1) = args(i);
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
966 }
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
967
20898
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
968 // NOTE: Call to os.error must precede next call to ostr which might reset it.
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
969 retval(2) = os.printf (fmt_arg, tmp_args, who);
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
970 retval(1) = os.error ();
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
971
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
972 std::string result = ostr->str ();
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
973 char type = fmt_arg.is_sq_string () ? '\'' : '"';
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
974
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
975 retval(0) = (result.empty () ? octave_value (charMatrix (1, 0), type)
8da80da1ac37 maint: Use ovl() more places in the code.
Rik <rik@octave.org>
parents: 20884
diff changeset
976 : octave_value (result, type));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
977
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
978 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
979 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
980
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
981 DEFUN (fscanf, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
982 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
983 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}] =} fscanf (@var{fid}, @var{template}, @var{size})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
984 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}] =} fscanf (@var{fid}, @var{template}, "C")
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
985 In the first form, read from @var{fid} according to @var{template},
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
986 returning the result in the matrix @var{val}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
987
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
988 The optional argument @var{size} specifies the amount of data to read
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
989 and may be one of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
990
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
991 @table @code
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
992 @item Inf
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
993 Read as much as possible, returning a column vector.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
994
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
995 @item @var{nr}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
996 Read up to @var{nr} elements, returning a column vector.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
997
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
998 @item [@var{nr}, Inf]
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
999 Read as much as possible, returning a matrix with @var{nr} rows. If the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1000 number of elements read is not an exact multiple of @var{nr}, the last
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1001 column is padded with zeros.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1002
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1003 @item [@var{nr}, @var{nc}]
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1004 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1005 @var{nr} rows. If the number of elements read is not an exact multiple
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1006 of @var{nr}, the last column is padded with zeros.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1007 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1008
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1009 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1010 If @var{size} is omitted, a value of @code{Inf} is assumed.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1011
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1012 A string is returned if @var{template} specifies only character conversions.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1013
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1014 The number of items successfully read is returned in @var{count}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1015
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1016 If an error occurs, @var{errmsg} contains a system-dependent error message.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1017
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1018 In the second form, read from @var{fid} according to @var{template},
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1019 with each conversion specifier in @var{template} corresponding to a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1020 single scalar return value. This form is more ``C-like'', and also
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1021 compatible with previous versions of Octave. The number of successful
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1022 conversions is returned in @var{count}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1023 @ifclear OCTAVE_MANUAL
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1024
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1025 See the Formatted Input section of the GNU Octave manual for a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1026 complete description of the syntax of the template string.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1027 @end ifclear
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1028 @seealso{fgets, fgetl, fread, scanf, sscanf, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1029 @end deftypefn */)
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1030 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1031 static std::string who = "fscanf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1032
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1033 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1034
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
1035 if (nargin < 2 || nargin > 3)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
1036 print_usage ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
1037
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1038 octave_value_list retval;
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1039
21506
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1040 octave_stream os = octave_stream_list::lookup (args(0), who);
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1041
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1042 if (! args(1).is_string ())
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1043 error ("%s: format TEMPLATE must be a string", who.c_str ());
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1044
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1045 if (nargin == 3 && args(2).is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1046 {
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1047 retval = ovl (os.oscanf (args(1), who));
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1048 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1049 else
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1050 {
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1051 octave_idx_type count = 0;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1052
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1053 Array<double> size = (nargin == 3)
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1054 ? args(2).vector_value ()
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1055 : Array<double> (dim_vector (1, 1),
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1056 lo_ieee_inf_value ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1057
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1058 octave_value tmp = os.scanf (args(1), size, count, who);
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
1059
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1060 retval = ovl (tmp, count, os.error ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1061 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1062
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1063 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1064 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1065
13194
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1066 static std::string
21507
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1067 get_scan_string_data (const octave_value& val, const std::string& who)
13194
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1068 {
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1069 std::string retval;
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1070
20962
3aa293be0e8d maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents: 20956
diff changeset
1071 if (! val.is_string ())
21507
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1072 error ("%s: argument STRING must be a string", who.c_str ());
13194
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1073
20962
3aa293be0e8d maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents: 20956
diff changeset
1074 octave_value tmp = val.reshape (dim_vector (1, val.numel ()));
3aa293be0e8d maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents: 20956
diff changeset
1075
3aa293be0e8d maint: Invert simple conditionals in if/else/error paradigm.
Rik <rik@octave.org>
parents: 20956
diff changeset
1076 retval = tmp.string_value ();
13194
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1077
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1078 return retval;
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1079 }
3e1871badab9 allow sscanf to accept character arrays with more than one row
John W. Eaton <jwe@octave.org>
parents: 12998
diff changeset
1080
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1081 DEFUN (sscanf, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1082 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1083 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}, @var{pos}] =} sscanf (@var{string}, @var{template}, @var{size})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1084 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}] =} sscanf (@var{string}, @var{template}, "C")
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1085 This is like @code{fscanf}, except that the characters are taken from the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1086 string @var{string} instead of from a stream.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1087
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1088 Reaching the end of the string is treated as an end-of-file condition. In
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1089 addition to the values returned by @code{fscanf}, the index of the next
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1090 character to be read is returned in @var{pos}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1091 @seealso{fscanf, scanf, sprintf}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1092 @end deftypefn */)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1093 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1094 static std::string who = "sscanf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1095
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1096 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1097
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
1098 if (nargin < 2 || nargin > 3)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
1099 print_usage ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
1100
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1101 octave_value_list retval;
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1102
21507
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1103 std::string data = get_scan_string_data (args(0), who);
21506
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1104
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1105 octave_stream os = octave_istrstream::create (data);
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1106
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1107 if (! os.is_valid ())
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1108 error ("%s: unable to create temporary input buffer", who.c_str ());
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1109
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1110 if (! args(1).is_string ())
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1111 error ("%s: format TEMPLATE must be a string", who.c_str ());
128703a29388 avoid some duplicate code in file-io functions
John W. Eaton <jwe@octave.org>
parents: 21504
diff changeset
1112
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1113 if (nargin == 3 && args(2).is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1114 {
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1115 retval = ovl (os.oscanf (args(1), who));
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1116 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1117 else
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1118 {
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1119 octave_idx_type count = 0;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1120
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1121 Array<double> size = (nargin == 3) ? args(2).vector_value ()
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1122 : Array<double> (dim_vector (1, 1),
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1123 lo_ieee_inf_value ());
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1124
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1125 octave_value tmp = os.scanf (args(1), size, count, who);
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
1126
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1127 // FIXME: is this the right thing to do?
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1128 // Extract error message first, because getting
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1129 // position will clear it.
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1130 std::string errmsg = os.error ();
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1131
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1132 retval = ovl (tmp, count, errmsg,
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
1133 (os.eof () ? data.length () : os.tell ()) + 1);
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1134 }
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1135
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1136 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1137 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1138
21634
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1139 DEFUN (scanf, args, nargout,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1140 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1141 @deftypefn {} {[@var{val}, @var{count}, @var{errmsg}] =} scanf (@var{template}, @var{size})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1142 @deftypefnx {} {[@var{v1}, @var{v2}, @dots{}, @var{count}, @var{errmsg}]] =} scanf (@var{template}, "C")
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1143 This is equivalent to calling @code{fscanf} with @var{fid} = @code{stdin}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1144
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1145 It is currently not useful to call @code{scanf} in interactive programs.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1146 @seealso{fscanf, sscanf, printf}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1147 @end deftypefn */)
21634
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1148 {
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1149 int nargin = args.length ();
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1150
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1151 octave_value_list tmp_args (nargin+1, octave_value ());
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1152
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1153 tmp_args (0) = 0.0;
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1154 for (int i = 0; i < nargin; i++)
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1155 tmp_args(i+1) = args(i);
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1156
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1157 return Ffscanf (tmp_args, nargout);
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1158 }
96518f623c91 Backed out changeset dcf8922b724b
Mike Miller <mtmiller@octave.org>
parents: 21633
diff changeset
1159
21504
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1160 static octave_value_list
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1161 textscan_internal (const std::string& who, const octave_value_list& args)
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1162 {
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1163 if (args.length () < 1)
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1164 print_usage (who);
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1165
21507
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1166 octave_stream os;
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1167
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1168 if (args(0).is_string ())
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1169 {
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1170 std::string data = get_scan_string_data (args(0), who);
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1171
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1172 os = octave_istrstream::create (data);
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1173
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1174 if (! os.is_valid ())
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1175 error ("%s: unable to create temporary input buffer", who.c_str ());
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1176 }
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1177 else
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
1178 os =octave_stream_list::lookup (args(0), who);
21504
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1179
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1180 int nskip = 1;
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1181
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1182 std::string fmt;
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1183
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1184 if (args.length () == 1)
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1185 {
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1186 // ommited format = %f. explicit "" = width from file
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1187 fmt = "%f";
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1188 }
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1189 else if (args(1).is_string ())
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1190 {
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1191 fmt = args(1).string_value ();
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1192
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1193 if (args(1).is_sq_string ())
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1194 fmt = do_string_escapes (fmt);
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1195
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1196 nskip++;
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1197 }
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1198 else
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1199 error ("%s: FORMAT must be a string", who.c_str ());
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1200
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1201 octave_idx_type ntimes = -1;
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1202
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1203 if (args.length () > 2)
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1204 {
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1205 if (args(2).is_numeric_type ())
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1206 {
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1207 ntimes = args(2).idx_type_value ();
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1208
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1209 if (ntimes < args(2).double_value ())
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1210 error ("%s: REPEAT = %g is too large",
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1211 who.c_str (), args(2).double_value ());
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1212
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1213 nskip++;
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1214 }
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1215 }
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1216
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1217 octave_value_list options = args.splice (0, nskip);
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1218
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1219 octave_idx_type count = 0;
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1220
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1221 octave_value result = os.textscan (fmt, ntimes, options, who, count);
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1222
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1223 std::string errmsg = os.error ();
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1224
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1225 return ovl (result, count, errmsg);
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1226 }
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1227
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1228 DEFUN (textscan, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1229 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1230 @deftypefn {} {@var{C} =} textscan (@var{fid}, @var{format})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1231 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{repeat})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1232 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{param}, @var{value}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1233 @deftypefnx {} {@var{C} =} textscan (@var{fid}, @var{format}, @var{repeat}, @var{param}, @var{value}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1234 @deftypefnx {} {@var{C} =} textscan (@var{str}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1235 @deftypefnx {} {[@var{C}, @var{position}, @var{errmsg}] =} textscan (@dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1236 Read data from a text file or string.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1237
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1238 The string @var{str} or file associated with @var{fid} is read from and
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1239 parsed according to @var{format}. The function is an extension of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1240 @code{strread} and @code{textread}. Differences include: the ability to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1241 read from either a file or a string, additional options, and additional
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1242 format specifiers.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1243
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1244 The input is interpreted as a sequence of words, delimiters (such as
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1245 whitespace), and literals. The characters that form delimiters and
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1246 whitespace are determined by the options. The format consists of format
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1247 specifiers interspersed between literals. In the format, whitespace forms
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1248 a delimiter between consecutive literals, but is otherwise ignored.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1249
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1250 The output @var{C} is a cell array where the number of columns is determined
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1251 by the number of format specifiers.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1252
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1253 The first word of the input is matched to the first specifier of the format
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1254 and placed in the first column of the output; the second is matched to the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1255 second specifier and placed in the second column and so forth. If there
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1256 are more words than specifiers then the process is repeated until all words
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1257 have been processed or the limit imposed by @var{repeat} has been met (see
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1258 below).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1259
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1260 The string @var{format} describes how the words in @var{str} should be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1261 parsed. As in @var{fscanf}, any (non-whitespace) text in the format that is
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1262 not one of these specifiers is considered a literal. If there is a literal
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1263 between two format specifiers then that same literal must appear in the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1264 input stream between the matching words.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1265
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1266 The following specifiers are valid:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1267
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1268 @table @code
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1269 @item %f
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1270 @itemx %f64
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1271 @itemx %n
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1272 The word is parsed as a number and converted to double.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1273
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1274 @item %f32
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1275 The word is parsed as a number and converted to single (float).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1276
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1277 @item %d
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1278 @itemx %d8
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1279 @itemx %d16
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1280 @itemx %d32
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1281 @itemx %d64
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1282 The word is parsed as a number and converted to int8, int16, int32, or
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1283 int64. If no size is specified then int32 is used.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1284
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1285 @item %u
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1286 @itemx %u8
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1287 @itemx %u16
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1288 @itemx %u32
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1289 @itemx %u64
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1290 The word is parsed as a number and converted to uint8, uint16, uint32, or
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1291 uint64. If no size is specified then uint32 is used.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1292
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1293 @item %s
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1294 The word is parsed as a string ending at the last character before
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1295 whitespace, an end-of-line, or a delimiter specified in the options.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1296
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1297 @item %q
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1298 The word is parsed as a "quoted string".
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1299 If the first character of the string is a double quote (") then the string
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1300 includes everything until a matching double quote---including whitespace,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1301 delimiters, and end-of-line characters. If a pair of consecutive double
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1302 quotes appears in the input, it is replaced in the output by a single
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1303 double quote. For examples, the input "He said ""Hello""" would
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1304 return the value 'He said "Hello"'.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1305
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1306 @item %c
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1307 The next character of the input is read.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1308 This includes delimiters, whitespace, and end-of-line characters.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1309
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1310 @item %[@dots{}]
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1311 @itemx %[^@dots{}]
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1312 In the first form, the word consists of the longest run consisting of only
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1313 characters between the brackets. Ranges of characters can be specified by
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1314 a hyphen; for example, %[0-9a-zA-Z] matches all alphanumeric characters (if
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1315 the underlying character set is ASCII). Since @sc{matlab} treats hyphens
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1316 literally, this expansion only applies to alphanumeric characters. To
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1317 include '-' in the set, it should appear first or last in the brackets; to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1318 include ']', it should be the first character. If the first character is
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1319 '^' then the word consists of characters @strong{not} listed.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1320
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1321 @item %N@dots{}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1322 For %s, %c %d, %f, %n, %u, an optional width can be specified as %Ns, etc.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1323 where N is an integer > 1. For %c, this causes exactly N characters to be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1324 read instead of a single character. For the other specifiers, it is an
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1325 upper bound on the number of characters read; normal delimiters can cause
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1326 fewer characters to be read. For complex numbers, this limit applies to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1327 the real and imaginary components individually. For %f and %n, format
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1328 specifiers like %N.Mf are allowed, where M is an upper bound on number of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1329 characters after the decimal point to be considered; subsequent digits are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1330 skipped. For example, the specifier %8.2f would read 12.345e6 as 1.234e7.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1331
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1332 @item %*@dots{}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1333 The word specified by the remainder of the conversion specifier is skipped.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1334
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1335 @item literals
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1336 In addition the format may contain literal character strings; these will be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1337 skipped during reading. If the input string does not match this literal,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1338 the processing terminates.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1339 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1340
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1341 Parsed words corresponding to the first specifier are returned in the first
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1342 output argument and likewise for the rest of the specifiers.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1343
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1344 By default, if there is only one input argument, @var{format} is @t{"%f"}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1345 This means that numbers are read from the input into a single column vector.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1346 If @var{format} is explicitly empty (@qcode{""}) then textscan will
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1347 return data in a number of columns matching the number of fields on the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1348 first data line of the input. Either of these is suitable only when the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1349 input is exclusively numeric.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1350
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1351 For example, the string
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1352
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1353 @smallexample
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1354 @group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1355 @var{str} = "\
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1356 Bunny Bugs 5.5\n\
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1357 Duck Daffy -7.5e-5\n\
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1358 Penguin Tux 6"
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1359 @end group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1360 @end smallexample
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1361
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1362 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1363 can be read using
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1364
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1365 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1366 @var{a} = textscan (@var{str}, "%s %s %f");
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1367 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1368
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1369 The optional numeric argument @var{repeat} can be used for limiting the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1370 number of items read:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1371
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1372 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1373 @item -1
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1374 Read all of the string or file until the end (default).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1375
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1376 @item N
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1377 Read until the first of two conditions occurs: 1) the format has been
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1378 processed N times, or 2) N lines of the input have been processed. Zero
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1379 (0) is an acceptable value for @var{repeat}. Currently, end-of-line
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1380 characters inside %q, %c, and %[@dots{}]$ conversions do not contribute to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1381 the line count. This is incompatible with @sc{matlab} and may change in
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1382 future.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1383 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1384
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1385 The behavior of @code{textscan} can be changed via property/value pairs.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1386 The following properties are recognized:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1387
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1388 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1389 @item @qcode{"BufSize"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1390 This specifies the number of bytes to use for the internal buffer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1391 A modest speed improvement may be obtained by setting this to a large value
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1392 when reading a large file, especially if the input contains long strings.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1393 The default is 4096, or a value dependent on @var{n} if that is specified.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1394
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1395 @item @qcode{"CollectOutput"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1396 A value of 1 or true instructs @code{textscan} to concatenate consecutive
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1397 columns of the same class in the output cell array. A value of 0 or false
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1398 (default) leaves output in distinct columns.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1399
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1400 @item @qcode{"CommentStyle"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1401 Specify parts of the input which are considered comments and will be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1402 skipped. @var{value} is the comment style and can be either (1) A string
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1403 or 1x1 cell string, to skip everything to the right of it; (2) A cell array
21992
03c692adf563 maint: strip trailing whitespace from files.
John W. Eaton <jwe@octave.org>
parents: 21991
diff changeset
1404 of two strings, to skip everything between the first and second strings.
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1405 Comments are only parsed where whitespace is accepted and do not act as
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1406 delimiters.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1407
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1408 @item @qcode{"Delimiter"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1409 If @var{value} is a string, any character in @var{value} will be used to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1410 split the input into words. If @var{value} is a cell array of strings,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1411 any string in the array will be used to split the input into words.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1412 (default value = any whitespace.)
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1413
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1414 @item @qcode{"EmptyValue"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1415 Value to return for empty numeric values in non-whitespace delimited data.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1416 The default is NaN@. When the data type does not support NaN (int32 for
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1417 example), then the default is zero.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1418
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1419 @item @qcode{"EndOfLine"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1420 @var{value} can be either an emtpy or one character specifying the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1421 end-of-line character, or the pair
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1422 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} (CRLF).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1423 In the latter case, any of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1424 @qcode{"@xbackslashchar{}r"}, @qcode{"@xbackslashchar{}n"} or
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1425 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} is counted as a (single)
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1426 newline. If no value is given,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1427 @qcode{"@xbackslashchar{}r@xbackslashchar{}n"} is used.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1428 @c If set to "" (empty string) EOLs are ignored as delimiters and added
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1429 @c to whitespace.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1430
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1431 @c When reading from a character string, optional input argument @var{n}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1432 @c specifies the number of times @var{format} should be used (i.e., to limit
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1433 @c the amount of data read).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1434 @c When reading from file, @var{n} specifies the number of data lines to read;
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1435 @c in this sense it differs slightly from the format repeat count in strread.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1436
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1437 @item @qcode{"HeaderLines"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1438 The first @var{value} number of lines of @var{fid} are skipped. Note that
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1439 this does not refer to the first non-comment lines, but the first lines of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1440 any type.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1441
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1442 @item @qcode{"MultipleDelimsAsOne"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1443 If @var{value} is nonzero, treat a series of consecutive delimiters,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1444 without whitespace in between, as a single delimiter. Consecutive
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1445 delimiter series need not be vertically aligned. Without this option, a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1446 single delimiter before the end of the line does not cause the line to be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1447 considered to end with an empty value, but a single delimiter at the start
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1448 of a line causes the line to be considered to start with an empty value.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1449
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1450 @item @qcode{"TreatAsEmpty"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1451 Treat single occurrences (surrounded by delimiters or whitespace) of the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1452 string(s) in @var{value} as missing values.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1453
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1454 @item @qcode{"ReturnOnError"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1455 If set to numerical 1 or true, return normally as soon as an error is
22299
9fc91bb2aec3 doc: grammarcheck documentation for 4.2 release.
Rik <rik@octave.org>
parents: 22022
diff changeset
1456 encountered, such as trying to read a string using @code{%f}.
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1457 If set to 0 or false, return an error and no data.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1458
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1459 @item @qcode{"Whitespace"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1460 Any character in @var{value} will be interpreted as whitespace and trimmed;
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1461 The default value for whitespace is
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1462 @c Note: the next line specifically has a newline which generates a space
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1463 @c in the output of qcode, but keeps the next line < 80 characters.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1464 @qcode{"
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1465 @xbackslashchar{}b@xbackslashchar{}r@xbackslashchar{}n@xbackslashchar{}t"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1466 (note the space). Unless whitespace is set to @qcode{""} (empty) AND at
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1467 least one @qcode{"%s"} format conversion specifier is supplied, a space is
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1468 always part of whitespace.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1469
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1470 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1471
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1472 When the number of words in @var{str} or @var{fid} doesn't match an exact
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1473 multiple of the number of format conversion specifiers, @code{textscan}'s
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1474 behavior depends on whether the last character of the string or file is an
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1475 end-of-line as specified by the @code{EndOfLine} option:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1476
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1477 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1478 @item last character = end-of-line
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1479 Data columns are padded with empty fields, NaN or 0 (for integer fields) so
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1480 that all columns have equal length
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1481
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1482 @item last character is not end-of-line
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1483 Data columns are not padded; @code{textscan} returns columns of unequal
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1484 length
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1485 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1486
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1487 The second output @var{position} provides the location, in characters
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1488 from the beginning of the file or string, where processing stopped.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1489
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1490 @seealso{dlmread, fscanf, load, strread, textread}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1491 @end deftypefn */)
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1492 {
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1493 static std::string who = "textscan";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1494
21504
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1495 return textscan_internal (who, args);
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1496 }
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1497
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1498 DEFUN (__textscan__, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1499 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1500 @deftypefn {} {@var{C} =} __textscan__ (@var{who}, @dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1501 Like @code{textscan} but accept additional argument @var{who} to use
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1502 as the name of the function when reporting errors.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
1503 @end deftypefn */)
21504
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1504 {
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1505 if (args.length () == 0)
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1506 print_usage ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1507
21504
65d1daa7d7a7 new function __textscan__
John W. Eaton <jwe@octave.org>
parents: 21503
diff changeset
1508 return textscan_internal (args(0).string_value (), args.splice (0, 1));
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1509 }
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1510
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1511 /*
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1512 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1513 %! str = "1, 2, 3, 4\n 5, , , 8\n 9, 10, 11, 12";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1514 %! fmtstr = "%f %d %f %s";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1515 %! c = textscan (str, fmtstr, 2, "delimiter", ",", "emptyvalue", -Inf);
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1516 %! assert (c{1}, [1;5]);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1517 %! assert (c{3}, [3; -Inf]);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1518 %! assert (iscellstr (c{4}));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1519
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1520 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1521 %! b = [10:10:100];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1522 %! b = [b; 8*b/5];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1523 %! str = sprintf ("%g miles/hr = %g kilometers/hr\n", b);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1524 %! fmt = "%f miles/hr = %f kilometers/hr";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1525 %! c = textscan (str, fmt);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1526 %! assert (c{1}, b(1,:)', 1e-5);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1527 %! assert (c{2}, b(2,:)', 1e-5);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1528
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1529 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1530 %! str = "13, -, NA, str1, -25\r\n// Middle line\r\n36, na, 05, str3, 6";
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1531 %! c = textscan (str, "%d %n %f %s %n", "delimiter", ",",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1532 %! "treatAsEmpty", {"NA", "na", "-"}, "commentStyle", "//");
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1533 %! assert (c{1}, int32 ([13; 36]));
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1534 %! assert (c{2}, [NaN; NaN]);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1535 %! assert (c{3}, [NaN; 5]);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1536 %! assert (c{4}, {"str1"; "str3"});
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1537 %! assert (c{5}, [-25; 6]);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1538
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1539 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1540 %! str = "Km:10 = hhhBjjj miles16hour\r\n";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1541 %! str = [str "Km:15 = hhhJjjj miles241hour\r\n"];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1542 %! str = [str "Km:2 = hhhRjjj miles3hour\r\n"];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1543 %! str = [str "Km:25 = hhhZ\r\n"];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1544 %! fmt = "Km:%d = hhh%1sjjj miles%dhour";
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1545 %! c = textscan (str, fmt, "delimiter", " ");
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1546 %! assert (c{1}', int32 ([10, 15, 2, 25]));
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1547 %! assert (c{2}', {'B' 'J' 'R' 'Z'});
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1548 %! assert (c{3}', int32 ([16, 241, 3, 0]));
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1549
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1550 ## Test with default EndOfLine parameter
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1551 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1552 %! c = textscan ("L1\nL2", "%s");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1553 %! assert (c{:}, {"L1"; "L2"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1554
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1555 ## Test with EndofLine parameter set to "" (empty) - newline should be in word
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1556 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1557 %! c = textscan ("L1\nL2", "%s", "endofline", "");
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1558 %! assert (int8 ([c{:}{:}]), int8 ([76, 49, 10, 76, 50]));
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1559
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1560 ### Matlab fails this test. A literal after a conversion is not a delimiter
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1561 #%!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1562 #%! ## No delimiters at all besides EOL. Skip fields, even empty fields
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1563 #%! str = "Text1Text2Text\nTextText4Text\nText57Text";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1564 #%! c = textscan (str, "Text%*dText%dText");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1565 #%! assert (c{1}, int32 ([2; 4; 0]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1566
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1567 ## CollectOutput test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1568 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1569 %! b = [10:10:100];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1570 %! b = [b; 8*b/5; 8*b*1000/5];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1571 %! str = sprintf ("%g miles/hr = %g (%g) kilometers (meters)/hr\n", b);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1572 %! fmt = "%f miles%s %s %f (%f) kilometers %*s";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1573 %! c = textscan (str, fmt, "collectoutput", 1);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1574 %! assert (size (c{3}), [10, 2]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1575 %! assert (size (c{2}), [10, 2]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1576
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1577 ## CollectOutput test with uneven column length files
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1578 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1579 %! b = [10:10:100];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1580 %! b = [b; 8*b/5; 8*b*1000/5];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1581 %! str = sprintf ("%g miles/hr = %g (%g) kilometers (meters)/hr\n", b);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1582 %! str = [str "110 miles/hr"];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1583 %! fmt = "%f miles%s %s %f (%f) kilometers %*s";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1584 %! c = textscan (str, fmt, "collectoutput", 1);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1585 %! assert (size (c{1}), [11, 1]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1586 %! assert (size (c{3}), [11, 2]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1587 %! assert (size (c{2}), [11, 2]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1588 %! assert (c{3}(end), NaN);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1589 %! assert (c{2}{11, 1}, "/hr");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1590 %! assert (isempty (c{2}{11, 2}), true);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1591
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1592 ## Double quoted string
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1593 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1594 %! str = 'First "the second called ""the middle""" third';
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1595 %! fmt = "%q";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1596 %! c = textscan (str, fmt);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1597 %! assert (c{1}, {"First"; 'the second called "the middle"'; "third"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1598
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1599 ## Arbitrary character
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1600 %!test
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1601 %! c = textscan ("a first, \n second, third", "%s %c %11c", "delimiter", " ,");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1602 %! assert (c{1}, {"a"; "ond"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1603 %! assert (c{2}, {"f"; "t"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1604 %! assert (c{3}, {"irst, \n sec"; "hird"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1605
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1606 ## Field width and non-standard delimiters
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1607 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1608 %! str = "12;34;123456789;7";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1609 %! c = textscan (str, "%4d %4d", "delimiter", ";", "collectOutput", 1);
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1610 %! assert (c, {[12, 34; 1234, 5678; 9, 7]});
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1611
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1612 ## Field width and non-standard delimiters (2)
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1613 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1614 %! str = "12;34;123456789;7";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1615 %! c = textscan (str, "%4f %f", "delimiter", ";", "collectOutput", 1);
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1616 %! assert (c, {[12, 34; 1234, 56789; 7, NaN]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1617
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1618 ## Ignore trailing delimiter, but use leading one
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1619 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1620 %! str = "12.234e+2,34, \n12345.789-9876j,78\n,10|3";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1621 %! c = textscan (str, "%10.2f %f", "delimiter", ",", "collectOutput", 1,
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1622 %! "expChars", "e|");
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1623 %! assert (c, {[1223, 34; 12345.79-9876j, 78; NaN, 10000]}, 1e-6);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1624
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1625 ## Multi-character delimiter
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1626 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1627 %! str = "99end2 space88gap 4564";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1628 %! c = textscan (str, "%d %s", "delimiter", {"end", "gap", "space"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1629 %! assert (c{1}, int32 ([99; 88]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1630 %! assert (c{2}, {"2 "; "4564"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1631
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1632 ## FIXME: Following two tests still fail (4/13/2016)?
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1633 ### Delimiters as part of literals, and following literals
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1634 #%!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1635 #%! str = "12 R&D & 7";
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1636 #%! c = textscan (str, "%f R&D %f", "delimiter", "&", "collectOutput", 1,
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1637 #%! "EmptyValue", -99);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1638 #%! assert (c, {[12, -99; 7, -99]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1639 #
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1640 ### Delimiters as part of literals, and before literals
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1641 #%!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1642 #%! str = "12 & R&D 7";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1643 #%! c = textscan (str, "%f R&D %f", "delimiter", "&", "collectOutput", 1);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1644 #%! assert (c, {[12 7]});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1645
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1646 ## Check number of lines read, not number of passes through format string
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1647 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1648 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1649 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1650 %! fprintf (fid, "1\n2\n3\n4\n5\n6");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1651 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1652 %! c = textscan (fid, "%f %f", 2);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1653 %! E = feof (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1654 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1655 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1656 %! assert (c, {1, 2});
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1657 %! assert (! E);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1658
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1659 ## Check number of lines read, not number of passes through format string
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1660 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1661 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1662 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1663 %! fprintf (fid, "1\r\n2\r3\n4\r\n5\n6");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1664 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1665 %! c = textscan (fid, "%f %f", 4);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1666 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1667 %! unlink (f);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
1668 %! assert (c, {[1;3], [2;4]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1669
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1670 ## Check number of lines read, with multiple delimiters
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1671 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1672 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1673 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1674 %! fprintf (fid, "1-\r\n-2\r3-\n-4\r\n5\n6");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1675 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1676 %! c = textscan (fid, "%f %f", 4, "delimiter", "-", "multipleDelimsAsOne", 1);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1677 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1678 %! unlink (f);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
1679 %! assert (c, {[1;3], [2;4]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1680
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1681 ## Check ReturnOnError
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1682 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1683 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1684 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1685 %! str = "1 2 3\n4 s 6";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1686 %! fprintf (fid, str);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1687 %! fseek (fid, 0, "bof");
21622
fed1111e1899 textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21621
diff changeset
1688 %! c = textscan (fid, "%f %f %f", "ReturnOnError", 1);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1689 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1690 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1691 %! unlink (f);
21622
fed1111e1899 textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21621
diff changeset
1692 %! u = textscan (str, "%f %f %f", "ReturnOnError", 1);
fed1111e1899 textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21621
diff changeset
1693 %! assert (c, {[1;4], [2], [3]});
fed1111e1899 textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21621
diff changeset
1694 %! assert (u, {[1;4], [2], [3]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1695
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1696 %! ## Check ReturnOnError (2)
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1697 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1698 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1699 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1700 %! str = "1 2 3\n4 s 6\n";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1701 %! fprintf (fid, str);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1702 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1703 %! c = textscan (fid, "%f %f %f", "ReturnOnError", 1);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1704 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1705 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1706 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1707 %! u = textscan (str, "%f %f %f", "ReturnOnError", 1);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
1708 %! assert (c, {[1;4], 2, 3});
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
1709 %! assert (u, {[1;4], 2, 3});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1710
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1711 %!error <Read error in field 2 of row 2>
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1712 %! textscan ("1 2 3\n4 s 6", "%f %f %f", "ReturnOnError", 0);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1713
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1714 ## Check ReturnOnError (3)
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1715 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1716 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1717 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1718 %! fprintf (fid, "1 s 3\n4 5 6");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1719 %! fseek (fid, 0, "bof");
21622
fed1111e1899 textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21621
diff changeset
1720 %! c = textscan (fid, "", "ReturnOnError", 1);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1721 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1722 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1723 %! unlink (f);
21622
fed1111e1899 textscan: eliminate ReturnOnError="continue" mode (bug #47538)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21621
diff changeset
1724 %! assert (c, {1});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1725
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1726 ## Check ReturnOnError with empty fields
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1727 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1728 %! c = textscan ("1,,3\n4,5,6", "", "Delimiter", ",", "ReturnOnError", 1);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
1729 %! assert (c, {[1;4], [NaN;5], [3;6]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1730
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1731 ## Check ReturnOnError with empty fields (2)
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1732 %!test
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1733 %! c = textscan ("1,,3\n4,5,6", "%f %f %f", "Delimiter", ",",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1734 %! "ReturnOnError", 1);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
1735 %! assert (c, {[1;4], [NaN;5], [3;6]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1736
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1737 ## Check ReturnOnError in first column
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1738 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1739 %! c = textscan ("1 2 3\ns 5 6", "", "ReturnOnError", 1);
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
1740 %! assert (c, {1, 2, 3});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1741
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1742 ## FIXME: This test fails (4/14/16)
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1743 ### Test incomplete first data line
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1744 #%!test
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1745 #%! R = textscan (['Empty1' char(10)], 'Empty%d %f');
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1746 #%! assert (R{1}, int32 (1));
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1747 #%! assert (isempty (R{2}), true);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1748
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1749 %!test <37023>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1750 %! data = textscan (" 1. 1 \n 2 3\n", '%f %f');
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1751 %! assert (data{1}, [1; 2], 1e-15);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1752 %! assert (data{2}, [1; 3], 1e-15);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1753
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1754 ## Whitespace test using delimiter ";"
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1755 %!test <37333>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1756 %! tc{1, 1} = "C:/code;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1757 %! tc{1, end+1} = "C:/code/meas;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1758 %! tc{1, end+1} = " C:/code/sim;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1759 %! tc{1, end+1} = "C:/code/utils;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1760 %! string = [tc{:}];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1761 %! c = textscan (string, "%s", "delimiter", ";");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1762 %! for k = 1:max (numel (c{1}), numel (tc))
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1763 %! lh = c{1}{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1764 %! rh = tc{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1765 %! rh(rh == ";") = "";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1766 %! rh = strtrim (rh);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1767 %! assert (strcmp (lh, rh));
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1768 %! endfor
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1769
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1770 ## Whitespace test, adding multipleDelimsAsOne true arg
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1771 %!test <37333>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1772 %! tc{1, 1} = "C:/code;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1773 %! tc{1, end+1} = " C:/code/meas;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1774 %! tc{1, end+1} = "C:/code/sim;;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1775 %! tc{1, end+1} = "C:/code/utils;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1776 %! string = [tc{:}];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1777 %! c = textscan (string, "%s", "delimiter", ";", "multipleDelimsAsOne", 1);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1778 %! for k = 1:max (numel (c{1}), numel (tc))
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1779 %! lh = c{1}{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1780 %! rh = tc{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1781 %! rh(rh == ";") = "";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1782 %! rh = strtrim (rh);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1783 %! assert (strcmp (lh, rh));
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1784 %! endfor
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1785
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1786 ## Whitespace test (bug #37333), adding multipleDelimsAsOne false arg
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1787 %!test <37333>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1788 %! tc{1, 1} = "C:/code;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1789 %! tc{1, end+1} = " C:/code/meas;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1790 %! tc{1, end+1} = "C:/code/sim;;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1791 %! tc{1, end+1} = "";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1792 %! tc{1, end+1} = "C:/code/utils;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1793 %! string = [tc{:}];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1794 %! c = textscan (string, "%s", "delimiter", ";", "multipleDelimsAsOne", 0);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1795 %! for k = 1:max (numel (c{1}), numel (tc))
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1796 %! lh = c{1}{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1797 %! rh = tc{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1798 %! rh(rh == ";") = "";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1799 %! rh = strtrim (rh);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1800 %! assert (strcmp (lh, rh));
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1801 %! endfor
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1802
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1803 ## Whitespace test (bug #37333) whitespace "" arg
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1804 %!test <37333>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1805 %! tc{1, 1} = "C:/code;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1806 %! tc{1, end+1} = " C:/code/meas;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1807 %! tc{1, end+1} = "C:/code/sim;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1808 %! tc{1, end+1} = "C:/code/utils;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1809 %! string = [tc{:}];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1810 %! c = textscan (string, "%s", "delimiter", ";", "whitespace", "");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1811 %! for k = 1:max (numel (c{1}), numel (tc))
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1812 %! lh = c{1}{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1813 %! rh = tc{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1814 %! rh(rh == ";") = "";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1815 %! assert (strcmp (lh, rh));
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1816 %! endfor
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1817
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1818 ## Whitespace test (bug #37333), whitespace " " arg
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1819 %!test <37333>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1820 %! tc{1, 1} = "C:/code;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1821 %! tc{1, end+1} = " C:/code/meas;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1822 %! tc{1, end+1} = "C:/code/sim;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1823 %! tc{1, end+1} = "C:/code/utils;";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1824 %! string = [tc{:}];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1825 %! c = textscan (string, "%s", "delimiter", ";", "whitespace", " ");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1826 %! for k = 1:max (numel (c{1}), numel (tc))
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1827 %! lh = c{1}{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1828 %! rh = tc{k};
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1829 %! rh(rh == ";") = "";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1830 %! rh = strtrim (rh);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1831 %! assert (strcmp (lh, rh));
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1832 %! endfor
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1833
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1834 ## Tests reading with empty format, should return proper nr of columns
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1835 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1836 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1837 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1838 %! fprintf (fid, " 1 2 3 4\n5 6 7 8");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1839 %! fseek (fid, 0, "bof");
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1840 %! C = textscan (fid, "");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1841 %! E = feof (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1842 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1843 %! unlink (f);
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1844 %! assert (C{1}, [1 ; 5], 1e-6);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1845 %! assert (C{2}, [2 ; 6], 1e-6);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1846 %! assert (C{3}, [3 ; 7], 1e-6);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1847 %! assert (C{4}, [4 ; 8], 1e-6);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1848 %! assert (E);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1849
21621
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1850 ## Test leaving the file at the correct position on exit
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1851 %!test
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1852 %! f = tempname ();
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1853 %! fid = fopen (f, "w+");
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1854 %! fprintf (fid, "1,2\n3,4\n");
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1855 %! fseek (fid, 0, "bof");
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1856 %! C = textscan (fid, "%s %f", 2, "Delimiter", ",");
21621
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1857 %! E = ftell (fid);
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1858 %! fclose (fid);
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1859 %! unlink (f);
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1860 %! assert (E, 8);
fe0a6de805e4 textscan: Leave file read position correct at exit (bug #47671)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21581
diff changeset
1861
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1862 ## Tests reading with empty format; empty fields & incomplete lower row
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1863 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1864 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1865 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1866 %! fprintf (fid, " ,2,,4\n5,6");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1867 %! fseek (fid, 0, "bof");
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1868 %! C = textscan (fid, "", "delimiter", ",", "EmptyValue", 999,
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1869 %! "CollectOutput" , 1);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1870 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1871 %! unlink (f);
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1872 %! assert (C{1}, [999, 2, 999, 4; 5, 6, 999, 999], 1e-6);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1873
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1874 ## Error message tests
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1875
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1876 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1877 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1878 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1879 %! msg1 = "textscan: 1 parameters given, but only 0 values";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1880 %! try
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1881 %! C = textscan (fid, "", "headerlines");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1882 %! end_try_catch;
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1883 %! assert (!feof (fid));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1884 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1885 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1886 %! assert (msg1, lasterr);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1887
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1888 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1889 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1890 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1891 %! msg1 = "textscan: HeaderLines must be numeric";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1892 %! try
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1893 %! C = textscan (fid, "", "headerlines", "hh");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1894 %! end_try_catch;
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1895 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1896 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1897 %! assert (msg1, lasterr);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1898
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1899 ## Skip headerlines
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1900 %!test
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1901 %! C = textscan ("field 1 field2\n 1 2\n3 4", "", "headerlines", 1,
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1902 %! "collectOutput", 1);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1903 %! assert (C, {[1 2; 3 4]});
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1904
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1905 ## Skip headerlines with non-default EOL
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1906 %!test
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1907 %! C = textscan ("field 1 field2\r 1 2\r3 4", "", "headerlines", 2,
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1908 %! "collectOutput", 1, "EndOfLine", '\r');
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1909 %! assert (C, {[3 4]});
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1910
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1911 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1912 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1913 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1914 %! fprintf (fid,"some_string");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1915 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1916 %! msg1 = "textscan: EndOfLine must be at most one character or '\\r\\n'";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1917 %! try
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1918 %! C = textscan (fid, "%f", "EndOfLine", "\n\r");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1919 %! end_try_catch;
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1920 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1921 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1922 %! assert (msg1, lasterr);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1923
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1924 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1925 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1926 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1927 %! fprintf (fid,"some_string");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1928 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1929 %! msg1 = "textscan: EndOfLine must be at most one character or '\\r\\n'";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1930 %! try
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1931 %! C = textscan (fid, "%f", "EndOfLine", 33);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1932 %! end_try_catch;
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1933 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1934 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1935 %! assert (msg1, lasterr);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1936
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1937 %!assert <41824> (textscan ("123", "", "whitespace", " "){:}, 123);
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1938
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1939 ## just test supplied emptyvalue
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1940 %!assert <42343> (textscan (",NaN", "", "delimiter", "," ,"emptyValue" ,Inf),
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1941 %! {Inf, NaN})
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1942
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1943 ## test padding with supplied emptyvalue
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1944 %!test <42343>
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1945 %! c = textscan (",1,,4\nInf, ,NaN\n", "", "delimiter", ",",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1946 %! "emptyvalue", -10);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1947 %! assert (cell2mat (c), [-10, 1, -10, 4; Inf, -10, NaN, -10]);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1948
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1949 %!test <42528>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1950 %! assert (textscan ("1i", ""){1}, 0+1i);
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1951 %! C = textscan ("3, 2-4i, NaN\n -i, 1, 23.4+2.2i\n 1+1 1+1j", "",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1952 %! "delimiter", ",");
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1953 %! assert (cell2mat (C), [3+0i, 2-4i, NaN+0i; 0-i, 1+0i, 23.4+2.2i; 1 1 1+1i]);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1954
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1955 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1956 %! ## TreatAsEmpty
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1957 %! C = textscan ("1,2,3,NN,5,6\n", "%d%d%d%f", "delimiter", ",",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1958 %! "TreatAsEmpty", "NN");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1959 %! assert (C{3}(1), int32 (3));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1960 %! assert (C{4}(1), NaN);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1961
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1962 ## MultipleDelimsAsOne
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1963 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1964 %! str = "11, 12, 13,, 15\n21,, 23, 24, 25\n,, 33, 34, 35\n";
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1965 %! C = textscan (str, "%f %f %f %f", "delimiter", ",",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1966 %! "multipledelimsasone", 1, "endofline", "\n");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1967 %! assert (C{1}', [11, 21, 33]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1968 %! assert (C{2}', [12, 23, 34]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1969 %! assert (C{3}', [13, 24, 35]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1970 %! assert (C{4}', [15, 25, NaN]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1971
21551
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1972 ## Single-quoted escape sequences
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1973 %!test
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1974 %! str = "11\t12\t13\r21\t22\t23";
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1975 %! c = textscan (str, "", "delimiter", '\t', "EndOfLine", '\r');
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1976 %! assert (c{1}', [11, 21]);
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1977 %! assert (c{2}', [12, 22]);
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1978 %! assert (c{3}', [13, 23]);
990c6c31a684 Accept escape sequences in single quoted strings for "delimiter" (bug #47539)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21548
diff changeset
1979
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
1980 %!test <44750>
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1981 %! c = textscan ("/home/foo/", "%s", "delimiter", "/",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1982 %! "MultipleDelimsAsOne", 1);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1983 %! assert (c{1}, {"home"; "foo"});
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1984
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1985 ## FIXME: Test still fails (4/13/2016)?
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1986 ## Allow cuddling %sliteral, but warn it is ambiguous
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1987 #%!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1988 #%! C = textscan ("abcxyz51\nxyz83\n##xyz101", "%s xyz %d");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1989 #%! assert (C{1}([1 3]), {"abc"; "##"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1990 #%! assert (isempty (C{1}{2}), true);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1991 #%! assert (C{2}, int32 ([51; 83; 101]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1992 ### Literals are not delimiters.
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1993
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1994 ## Test for false positives in check for non-supported format specifiers
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1995 %!test
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1996 %! c = textscan ("Total: 32.5 % (of cm values)",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1997 %! "Total: %f %% (of cm values)");
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
1998 %! assert (c{1}, 32.5, 1e-5);
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
1999
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
2000 ## Test various forms of string format specifiers
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
2001 %!test <45712>
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2002 %! str = "14 :1 z:2 z:3 z:5 z:11";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2003 %! C = textscan (str, "%f %s %*s %3s %*3s %f", "delimiter", ":");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2004 %! assert (C, {14, {"1 z"}, {"3 z"}, 11});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2005
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2006 ## Bit width, fixed width conversion specifiers
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2007 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2008 %! str2 = "123456789012345 ";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2009 %! str2 = [str2 str2 str2 str2 str2 str2 str2 str2];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2010 %! str2 = [str2 "123456789.01234 1234567890.1234 12345.678901234 12345.678901234"];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2011 %! pttrn = "%3u8%*s %5u16%*s %10u32%*s %15u64 %3d8%*s %5d16%*s %10d32%*s %15d64 %9f32%*s %14f64%*s %10.2f32%*s %12.2f64%*s";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2012 %! C = textscan (str2, pttrn, "delimiter", " ");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2013 %! assert (C{1}, uint8 (123));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2014 %! assert (C{2}, uint16 (12345));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2015 %! assert (C{3}, uint32 (1234567890));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2016 %! assert (C{4}, uint64 (123456789012345));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2017 %! assert (C{5}, int8 (123));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2018 %! assert (C{6}, int16 (12345));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2019 %! assert (C{7}, int32 (1234567890));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2020 %! assert (C{8}, int64 (123456789012345));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2021 %! assert (C{9}, single (123456789), 1e-12);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2022 %! assert (C{10}, double (1234567890.123), 1e-15);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2023 %! assert (C{11}, single (12345.68), 1e-5);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2024 %! assert (C{12}, double (12345.68), 1e-11);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2025
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2026 ## Bit width, fixed width conv. specifiers -- check the right amount is left
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2027 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2028 %! str2 = "123456789012345 ";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2029 %! str2 = [str2 str2 "123456789.01234"];
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2030 %! pttrn = "%3u8 %5u16 %10u32 %3d8 %5d16 %10d32 %9f32 %9f";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2031 %! C = textscan (str2, pttrn, "delimiter", " ");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2032 %! assert (C{1}, uint8 (123));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2033 %! assert (C{2}, uint16 (45678));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2034 %! assert (C{3}, uint32 (9012345));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2035 %! assert (C{4}, int8 (123));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2036 %! assert (C{5}, int16 (45678));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2037 %! assert (C{6}, int32 (9012345));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2038 %! assert (C{7}, single (123456789), 1e-12);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2039 %! assert (C{8}, double (0.01234), 1e-12);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2040
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2041 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2042 %! C = textscan ("123.123", "%2f %3f %3f");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2043 %! assert (C{1}, 12);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2044 %! assert (C{2}, 3.1, 1e-11);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2045 %! assert (C{3}, 23);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2046
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2047 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2048 %! C = textscan ("123.123", "%3f %3f %3f");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2049 %! assert (C{1}, 123);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2050 %! assert (C{2}, 0.12, 1e-11);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2051 %! assert (C{3}, 3);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2052
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2053 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2054 %! C = textscan ("123.123", "%4f %3f");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2055 %! assert (C{1}, 123);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2056 %! assert (C{2}, 123);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2057
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2058 ## field width interrupts exponent. (Matlab incorrectly gives [12, 2e12])
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2059 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2060 %! assert (textscan ("12e12", "%4f"), {[120; 2]});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2061 %! assert (textscan ("12e+12", "%5f"), {[120; 2]});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2062 %! assert (textscan ("125e-12","%6f"), {[12.5; 2]});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2063
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2064 ## %[] tests
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2065 ## Plain [..] and *[..]
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2066 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2067 %! ar = "abcdefguvwxAny\nacegxyzTrailing\nJunk";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2068 %! C = textscan (ar, "%[abcdefg] %*[uvwxyz] %s");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2069 %! assert (C{1}, {"abcdefg"; "aceg"; ""});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2070 %! assert (C{2}, {"Any"; "Trailing"; "Junk"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2071
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2072 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2073 %! assert (textscan ("A2 B2 C3", "%*[ABC]%d", 3), {int32([2; 2; 3])});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2074
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2075 ## [^..] and *[^..]
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2076 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2077 %! br = "abcdefguvwx1Any\nacegxyz2Trailing\n3Junk";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2078 %! C = textscan (br, "%[abcdefg] %*[^0123456789] %s");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2079 %! assert (C{1}, {"abcdefg"; "aceg"; ""});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2080 %! assert (C{2}, {"1Any"; "2Trailing"; "3Junk"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2081
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2082 ## [..] and [^..] containing delimiters
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2083 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2084 %! cr = "ab cd efguv wx1Any\na ce gx yz2Trailing\n 3Junk";
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2085 %! C = textscan (cr, "%[ abcdefg] %*[^0123456789] %s", "delimiter", " \n",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2086 %! "whitespace", "");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2087 %! assert (C{1}, {"ab cd efg"; "a ce g"; " "});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2088 %! assert (C{2}, {"1Any"; "2Trailing"; "3Junk"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2089
22489
93ea313301f9 test: Add bug ids (<#####>) to BIST tests.
Rik <rik@octave.org>
parents: 22407
diff changeset
2090 %!assert <36464> (textscan ("1 2 3 4 5 6", "%*n%n%*[^\n]"){1}, 2);
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2091
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2092 ## test %[]] and %[^]]
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2093 %!test
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2094 %! assert (textscan ("345]", "%*[123456]%[]]"){1}{1}, "]");
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2095 %! assert (textscan ("345]", "%*[^]]%s"){1}{1}, "]");
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2096
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2097 ## Test that "-i" checks the next two characters
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2098 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2099 %! C = textscan ("-i -in -inf -infinity", "%f %f%s %f %f %s");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2100 %! assert (C, {-i, -i, {"n"}, -Inf, -Inf, {"inity"}});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2101
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2102 ## Again for "+i", this time with custom parser
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2103 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2104 %! C = textscan ("+i +in +inf +infinity", "%f %f%s %f %f %s", "ExpChars", "eE");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2105 %! assert (C, {i, i, {"n"}, Inf, Inf, {"inity"}});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2106
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2107 ## Check single quoted format interprets control sequences
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2108 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2109 %! C = textscan ("1 2\t3 4", '%f %[^\t] %f %f');
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2110 %! assert (C, {1, {"2"}, 3, 4});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2111
21532
936ab0fca2f7 Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21507
diff changeset
2112 %% Check a non-empty line with no valid conversion registers empytValue
936ab0fca2f7 Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21507
diff changeset
2113 %!test
936ab0fca2f7 Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21507
diff changeset
2114 %! C = textscan ("Empty\n", "Empty%f %f");
21580
ecce63c99c3f maint: Add semicolons to terminate code in %! blocks.
Rik <rik@octave.org>
parents: 21566
diff changeset
2115 %! assert (C, { NaN, NaN });
21532
936ab0fca2f7 Textscan returns emptyVal for rows with literal but no conversion (bug #47458)
Lachlan Andrew <lachlanbis@gmail.com>
parents: 21507
diff changeset
2116
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2117 ## Check overflow and underflow of integer types
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2118 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2119 %! a = "-1e90 ";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2120 %! b = "1e90 ";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2121 %! fmt = "%d8 %d16 %d32 %d64 %u8 %u16 %u32 %u64 ";
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2122 %! C = textscan ([a a a a a a a a b b b b b b b b], fmt);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2123 %! assert (C{1}, int8 ([-128; 127]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2124 %! assert (C{2}, int16 ([-32768; 32767]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2125 %! assert (C{3}, int32 ([-2147483648; 2147483647]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2126 %! assert (C{4}, int64 ([-9223372036854775808; 9223372036854775807]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2127 %! assert (C{5}, uint8 ([0; 255]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2128 %! assert (C{6}, uint16 ([0; 65535]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2129 %! assert (C{7}, uint32 ([0; 4294967295]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2130 %! assert (C{8}, uint64 ([0; 18446744073709551615]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2131
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2132 ## Tests from Matlab (does The MathWorks have any copyright over the input?)
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2133 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2134 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2135 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2136 %! fprintf (fid,"09/12/2005 Level1 12.34 45 1.23e10 inf Nan Yes 5.1+3i\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2137 %! fprintf (fid,"10/12/2005 Level2 23.54 60 9e19 -inf 0.001 No 2.2-.5i\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2138 %! fprintf (fid,"11/12/2005 Level3 34.90 12 2e5 10 100 No 3.1+.1i\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2139 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2140 %! C = textscan (fid,"%s %s %f32 %d8 %u %f %f %s %f");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2141 %! %assert (C{1}, {"09/12/2005";"10/12/2005";"11/12/2005"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2142 %! assert (C{2}, {"Level1";"Level2";"Level3"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2143 %! assert (C{3}, [single(12.34);single(23.54);single(34.90)]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2144 %! assert (C{4}, [int8(45);int8(60);int8(12)]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2145 %! assert (C{5}, [uint32(4294967295);uint32(4294967295);uint32(200000)]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2146 %! assert (C{6}, [inf;-inf;10]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2147 %! assert (C{7}, [NaN;0.001;100], eps);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2148 %! assert (C{8}, {"Yes";"No";"No"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2149 %! assert (C{9}, [5.1+3i;2.2-0.5i;3.1+0.1i]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2150 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2151 %! C = textscan (fid,"%s Level%d %f32 %d8 %u %f %f %s %f");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2152 %! assert (C{2}, [int32(1);int32(2);int32(3)]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2153 %! assert (C{3}, [single(12.34);single(23.54);single(34.90)]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2154 %! fseek (fid, 0, "bof");
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2155 %! C = textscan (fid, '%s %*[^\n]');
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2156 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2157 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2158 %! assert (C, {{"09/12/2005";"10/12/2005";"11/12/2005"}});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2159
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2160 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2161 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2162 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2163 %! fprintf (fid,"1, 2, 3, 4, , 6\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2164 %! fprintf (fid,"7, 8, 9, , 11, 12\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2165 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2166 %! C = textscan (fid,"%f %f %f %f %u8 %f", "Delimiter",",","EmptyValue",-Inf);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2167 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2168 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2169 %! assert (C{4}, [4; -Inf]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2170 %! assert (C{5}, uint8 ([0; 11]));
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2171
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2172 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2173 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2174 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2175 %! fprintf (fid,"abc, 2, NA, 3, 4\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2176 %! fprintf (fid,"// Comment Here\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2177 %! fprintf (fid,"def, na, 5, 6, 7\n");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2178 %! fseek (fid, 0, "bof");
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2179 %! C = textscan (fid, "%s %n %n %n %n", "Delimiter", ",",
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2180 %! "TreatAsEmpty", {"NA","na"}, "CommentStyle", "//");
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2181 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2182 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2183 %! assert (C{1}, {"abc";"def"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2184 %! assert (C{2}, [2; NaN]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2185 %! assert (C{3}, [NaN; 5]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2186 %! assert (C{4}, [3; 6]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2187 %! assert (C{5}, [4; 7]);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2188
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2189 ## FIXME: Almost passes. Second return value is {"/"}. Tested 4/14/16.
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2190 ### Test start of comment as string
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2191 #%!test
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2192 #%! c = textscan ("1 / 2 // 3", "%n %s %u8", "CommentStyle", {"//"});
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2193 #%! assert (c(1), {1, "/", 2});
21507
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
2194
2cdbae31c022 improve compatibility of textscan for character arrays
John W. Eaton <jwe@octave.org>
parents: 21506
diff changeset
2195 %!assert (textscan (["1 2 3 4"; "5 6 7 8"], "%f"), {[15; 26; 37; 48]})
21566
02826fb0f261 textscan: Fix bug in exponent parsing
Mike Miller <mtmiller@octave.org>
parents: 21551
diff changeset
2196
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2197 ## Check for delimiter after exponent
21566
02826fb0f261 textscan: Fix bug in exponent parsing
Mike Miller <mtmiller@octave.org>
parents: 21551
diff changeset
2198 %!assert (textscan ("1e-3|42", "%f", "delimiter", "|"), {[1e-3; 42]})
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2199 */
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2200
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2201 // These tests have end-comment sequences, so can't just be in a comment
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2202 #if 0
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2203 ## Test unfinished comment
21502
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2204 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2205 %! c = textscan ("1 2 /* half comment", "%n %u8", "CommentStyle", {"/*", "*/"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2206 %! assert (c, {1, 2});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2207
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2208 ## Test reading from a real file
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2209 %!test
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2210 %! f = tempname ();
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2211 %! fid = fopen (f, "w+");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2212 %! d = rand (1, 4);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2213 %! fprintf (fid, " %f %f /* comment */ %f %f ", d);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2214 %! fseek (fid, 0, "bof");
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2215 %! A = textscan (fid, "%f %f", "CommentStyle", {"/*", "*/"});
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2216 %! E = feof (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2217 %! fclose (fid);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2218 %! unlink (f);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2219 %! assert (A{1}, [d(1); d(3)], 1e-6);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2220 %! assert (A{2}, [d(2); d(4)], 1e-6);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2221 %! assert (E);
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2222 #endif
7a19c5678f91 move textscan class to oct-stream.cc and textscan function to file-io.cc
John W. Eaton <jwe@octave.org>
parents: 21457
diff changeset
2223
21625
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2224 /*
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2225 ## Test input validation
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2226 %!error textscan ()
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2227 %!error textscan (single (40))
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2228 %!error textscan ({40})
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2229 %!error <must be a string> textscan ("Hello World", 2)
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2230 %!error <at most one character or>
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2231 %! textscan ("Hello World", "%s", "EndOfLine", 3);
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2232 %!error <'%z' is not a valid format specifier> textscan ("1.0", "%z")
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2233 %!error <no valid format conversion specifiers> textscan ("1.0", "foo")
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2234 */
3cadca91e390 Clean up BIST tests for textscan.
Rik <rik@octave.org>
parents: 21622
diff changeset
2235
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2236 static octave_value
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2237 do_fread (octave_stream& os, const octave_value& size_arg,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2238 const octave_value& prec_arg, const octave_value& skip_arg,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2239 const octave_value& arch_arg, octave_idx_type& count)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2240 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2241 count = -1;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2242
20703
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2243 Array<double> size = size_arg.xvector_value ("fread: invalid SIZE specified");
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2244
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2245 std::string prec = prec_arg.xstring_value ("fread: PRECISION must be a string");
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2246
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2247 int block_size = 1;
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2248 oct_data_conv::data_type input_type;
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2249 oct_data_conv::data_type output_type;
85e5efae848a eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20700
diff changeset
2250
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2251 try
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2252 {
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2253 oct_data_conv::string_to_data_type (prec, block_size,
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2254 input_type, output_type);
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2255 }
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
2256 catch (octave::execution_exception& e)
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2257 {
20756
200ae1d650b7 propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents: 20747
diff changeset
2258 error (e, "fread: invalid PRECISION specified");
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2259 }
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
2260
20747
ee2743bd07a8 eliminate various compiler warnings
John W. Eaton <jwe@octave.org>
parents: 20741
diff changeset
2261 int skip = 0;
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2262
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2263 try
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2264 {
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2265 skip = skip_arg.int_value (true);
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2266 }
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
2267 catch (octave::execution_exception& e)
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2268 {
20756
200ae1d650b7 propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents: 20747
diff changeset
2269 error (e, "fread: SKIP must be an integer");
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2270 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2271
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2272 std::string arch = arch_arg.xstring_value ("fread: ARCH architecture type must be a string");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2273
21739
c4ab2e54f100 use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents: 21736
diff changeset
2274 octave::mach_info::float_format flt_fmt
c4ab2e54f100 use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents: 21736
diff changeset
2275 = octave::mach_info::string_to_float_format (arch);
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2276
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2277 return os.read (size, block_size, input_type, output_type, skip,
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2278 flt_fmt, count);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2279 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2280
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2281 DEFUN (fread, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2282 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2283 @deftypefn {} {@var{val} =} fread (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2284 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2285 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2286 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}, @var{skip})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2287 @deftypefnx {} {@var{val} =} fread (@var{fid}, @var{size}, @var{precision}, @var{skip}, @var{arch})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2288 @deftypefnx {} {[@var{val}, @var{count}] =} fread (@dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2289 Read binary data from the file specified by the file descriptor @var{fid}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2290
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2291 The optional argument @var{size} specifies the amount of data to read
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2292 and may be one of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2293
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2294 @table @code
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2295 @item Inf
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2296 Read as much as possible, returning a column vector.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2297
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2298 @item @var{nr}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2299 Read up to @var{nr} elements, returning a column vector.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2300
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2301 @item [@var{nr}, Inf]
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2302 Read as much as possible, returning a matrix with @var{nr} rows. If the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2303 number of elements read is not an exact multiple of @var{nr}, the last
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2304 column is padded with zeros.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2305
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2306 @item [@var{nr}, @var{nc}]
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2307 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2308 @var{nr} rows. If the number of elements read is not an exact multiple
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2309 of @var{nr}, the last column is padded with zeros.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2310 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2311
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2312 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2313 If @var{size} is omitted, a value of @code{Inf} is assumed.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2314
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2315 The optional argument @var{precision} is a string specifying the type of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2316 data to read and may be one of
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2317
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2318 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2319 @item @qcode{"schar"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2320 @itemx @qcode{"signed char"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2321 Signed character.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2322
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2323 @item @qcode{"uchar"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2324 @itemx @qcode{"unsigned char"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2325 Unsigned character.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2326
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2327 @item @qcode{"int8"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2328 @itemx @qcode{"integer*1"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2329
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2330 8-bit signed integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2331
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2332 @item @qcode{"int16"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2333 @itemx @qcode{"integer*2"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2334 16-bit signed integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2335
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2336 @item @qcode{"int32"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2337 @itemx @qcode{"integer*4"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2338 32-bit signed integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2339
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2340 @item @qcode{"int64"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2341 @itemx @qcode{"integer*8"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2342 64-bit signed integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2343
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2344 @item @qcode{"uint8"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2345 8-bit unsigned integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2346
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2347 @item @qcode{"uint16"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2348 16-bit unsigned integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2349
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2350 @item @qcode{"uint32"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2351 32-bit unsigned integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2352
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2353 @item @qcode{"uint64"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2354 64-bit unsigned integer.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2355
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2356 @item @qcode{"single"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2357 @itemx @qcode{"float32"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2358 @itemx @qcode{"real*4"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2359 32-bit floating point number.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2360
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2361 @item @qcode{"double"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2362 @itemx @qcode{"float64"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2363 @itemx @qcode{"real*8"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2364 64-bit floating point number.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2365
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2366 @item @qcode{"char"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2367 @itemx @qcode{"char*1"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2368 Single character.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2369
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2370 @item @qcode{"short"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2371 Short integer (size is platform dependent).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2372
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2373 @item @qcode{"int"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2374 Integer (size is platform dependent).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2375
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2376 @item @qcode{"long"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2377 Long integer (size is platform dependent).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2378
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2379 @item @qcode{"ushort"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2380 @itemx @qcode{"unsigned short"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2381 Unsigned short integer (size is platform dependent).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2382
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2383 @item @qcode{"uint"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2384 @itemx @qcode{"unsigned int"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2385 Unsigned integer (size is platform dependent).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2386
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2387 @item @qcode{"ulong"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2388 @itemx @qcode{"unsigned long"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2389 Unsigned long integer (size is platform dependent).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2390
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2391 @item @qcode{"float"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2392 Single precision floating point number (size is platform dependent).
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2393 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2394
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2395 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2396 The default precision is @qcode{"uchar"}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2397
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2398 The @var{precision} argument may also specify an optional repeat
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2399 count. For example, @samp{32*single} causes @code{fread} to read
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2400 a block of 32 single precision floating point numbers. Reading in
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2401 blocks is useful in combination with the @var{skip} argument.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2402
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2403 The @var{precision} argument may also specify a type conversion.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2404 For example, @samp{int16=>int32} causes @code{fread} to read 16-bit
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2405 integer values and return an array of 32-bit integer values. By
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2406 default, @code{fread} returns a double precision array. The special
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2407 form @samp{*TYPE} is shorthand for @samp{TYPE=>TYPE}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2408
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2409 The conversion and repeat counts may be combined. For example, the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2410 specification @samp{32*single=>single} causes @code{fread} to read
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2411 blocks of single precision floating point values and return an array
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2412 of single precision values instead of the default array of double
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2413 precision values.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2414
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2415 The optional argument @var{skip} specifies the number of bytes to skip
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2416 after each element (or block of elements) is read. If it is not
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2417 specified, a value of 0 is assumed. If the final block read is not
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2418 complete, the final skip is omitted. For example,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2419
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2420 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2421 fread (f, 10, "3*single=>single", 8)
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2422 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2423
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2424 @noindent
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2425 will omit the final 8-byte skip because the last read will not be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2426 a complete block of 3 values.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2427
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2428 The optional argument @var{arch} is a string specifying the data format
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2429 for the file. Valid values are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2430
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2431 @table @asis
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2432 @item @qcode{"native"} or @qcode{"n"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2433 The format of the current machine.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2434
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2435 @item @qcode{"ieee-be"} or @qcode{"b"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2436 IEEE big endian.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2437
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2438 @item @qcode{"ieee-le"} or @qcode{"l"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2439 IEEE little endian.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2440 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2441
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2442 If no @var{arch} is given the value used in the call to @code{fopen} which
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2443 created the file descriptor is used. Otherwise, the value specified with
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2444 @code{fread} overrides that of @code{fopen} and determines the data format.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2445
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2446 The output argument @var{val} contains the data read from the file.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2447
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2448 The optional return value @var{count} contains the number of elements read.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2449 @seealso{fwrite, fgets, fgetl, fscanf, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2450 @end deftypefn */)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
2451 {
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2452 int nargin = args.length ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2453
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2454 if (nargin < 1 || nargin > 5)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2455 print_usage ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2456
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2457 octave_stream os = octave_stream_list::lookup (args(0), "fread");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2458
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2459 octave_value size = lo_ieee_inf_value ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2460 octave_value prec = "uchar";
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2461 octave_value skip = 0;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2462 octave_value arch = "unknown";
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2463
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2464 int idx = 1;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2465
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2466 if (nargin > idx && ! args(idx).is_string ())
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2467 size = args(idx++);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2468
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2469 if (nargin > idx)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2470 prec = args(idx++);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2471
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2472 if (nargin > idx)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2473 skip = args(idx++);
4257
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
2474
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2475 if (nargin > idx)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2476 arch = args(idx++);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2477 else if (skip.is_string ())
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2478 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2479 arch = skip;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2480 skip = 0;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2481 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2482
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2483 octave_idx_type count = -1;
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
2484
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2485 octave_value tmp = do_fread (os, size, prec, skip, arch, count);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2486
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2487 return ovl (tmp, count);
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
2488 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
2489
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2490 static int
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2491 do_fwrite (octave_stream& os, const octave_value& data,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2492 const octave_value& prec_arg, const octave_value& skip_arg,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2493 const octave_value& arch_arg)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2494 {
20700
68e3a747ca02 rename octave_value value extractors that accept error message args
John W. Eaton <jwe@octave.org>
parents: 20687
diff changeset
2495 std::string prec = prec_arg.xstring_value ("fwrite: PRECISION must be a string");
20581
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
2496
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
2497 int block_size = 1;
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
2498 oct_data_conv::data_type output_type;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2499
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2500 try
20581
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
2501 {
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2502 oct_data_conv::string_to_data_type (prec, block_size, output_type);
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2503 }
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
2504 catch (octave::execution_exception& e)
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2505 {
20756
200ae1d650b7 propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents: 20747
diff changeset
2506 error (e, "fwrite: invalid PRECISION specified");
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2507 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2508
20747
ee2743bd07a8 eliminate various compiler warnings
John W. Eaton <jwe@octave.org>
parents: 20741
diff changeset
2509 int skip = 0;
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2510
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2511 try
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2512 {
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2513 skip = skip_arg.int_value (true);
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2514 }
22327
d0562b3159c7 move more classes inside octave namespace
John W. Eaton <jwe@octave.org>
parents: 22323
diff changeset
2515 catch (octave::execution_exception& e)
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2516 {
20756
200ae1d650b7 propagate octave_execution_exception objects through try/catch blocks
John W. Eaton <jwe@octave.org>
parents: 20747
diff changeset
2517 error (e, "fwrite: SKIP must be an integer");
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2518 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2519
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2520 std::string arch = arch_arg.xstring_value ("fwrite: ARCH architecture type must be a string");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2521
21739
c4ab2e54f100 use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents: 21736
diff changeset
2522 octave::mach_info::float_format flt_fmt
c4ab2e54f100 use namespace for oct_mach_info class
John W. Eaton <jwe@octave.org>
parents: 21736
diff changeset
2523 = octave::mach_info::string_to_float_format (arch);
20741
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2524
a5ab31b52ae8 eliminate more uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20713
diff changeset
2525 return os.write (data, block_size, output_type, skip, flt_fmt);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2526 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2527
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2528 DEFUN (fwrite, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2529 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2530 @deftypefn {} {} fwrite (@var{fid}, @var{data})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2531 @deftypefnx {} {} fwrite (@var{fid}, @var{data}, @var{precision})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2532 @deftypefnx {} {} fwrite (@var{fid}, @var{data}, @var{precision}, @var{skip})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2533 @deftypefnx {} {} fwrite (@var{fid}, @var{data}, @var{precision}, @var{skip}, @var{arch})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2534 @deftypefnx {} {@var{count} =} fwrite (@dots{})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2535 Write data in binary form to the file specified by the file descriptor
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2536 @var{fid}, returning the number of values @var{count} successfully written
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2537 to the file.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2538
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2539 The argument @var{data} is a matrix of values that are to be written to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2540 the file. The values are extracted in column-major order.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2541
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2542 The remaining arguments @var{precision}, @var{skip}, and @var{arch} are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2543 optional, and are interpreted as described for @code{fread}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2544
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2545 The behavior of @code{fwrite} is undefined if the values in @var{data}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2546 are too large to fit in the specified precision.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2547 @seealso{fread, fputs, fprintf, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2548 @end deftypefn */)
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
2549 {
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2550 int nargin = args.length ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2551
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2552 if (nargin < 2 || nargin > 5)
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2553 print_usage ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
2554
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2555 octave_stream os = octave_stream_list::lookup (args(0), "fwrite");
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2556
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2557 octave_value prec = "uchar";
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2558 octave_value skip = 0;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2559 octave_value arch = "unknown";
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2560
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2561 int idx = 1;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2562
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2563 octave_value data = args(idx++);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2564
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2565 if (nargin > idx)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2566 prec = args(idx++);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2567
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2568 if (nargin > idx)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2569 skip = args(idx++);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2570
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2571 if (nargin > idx)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2572 arch = args(idx++);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2573 else if (skip.is_string ())
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2574 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2575 arch = skip;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2576 skip = 0;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2577 }
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2578
21127
df7891224709 maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents: 21126
diff changeset
2579 return ovl (do_fwrite (os, data, prec, skip, arch));
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
2580 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
2581
5906
bdf16e1564e1 [project @ 2006-07-27 03:07:14 by jwe]
jwe
parents: 5823
diff changeset
2582 DEFUNX ("feof", Ffeof, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2583 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2584 @deftypefn {} {@var{status} =} feof (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2585 Return 1 if an end-of-file condition has been encountered for the file
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2586 specified by file descriptor @var{fid} and 0 otherwise.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2587
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2588 Note that @code{feof} will only return 1 if the end of the file has already
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2589 been encountered, not if the next read operation will result in an
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2590 end-of-file condition.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2591 @seealso{fread, frewind, fseek, fclear, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2592 @end deftypefn */)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
2593 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2594 if (args.length () != 1)
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2595 print_usage ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
2596
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2597 octave_stream os = octave_stream_list::lookup (args(0), "feof");
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2598
21127
df7891224709 maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents: 21126
diff changeset
2599 return ovl (os.eof () ? 1.0 : 0.0);
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
2600 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
2601
5906
bdf16e1564e1 [project @ 2006-07-27 03:07:14 by jwe]
jwe
parents: 5823
diff changeset
2602 DEFUNX ("ferror", Fferror, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2603 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2604 @deftypefn {} {@var{msg} =} ferror (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2605 @deftypefnx {} {[@var{msg}, @var{err}] =} ferror (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2606 @deftypefnx {} {[@var{dots}] =} ferror (@var{fid}, "clear")
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2607 Query the error status of the stream specified by file descriptor @var{fid}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2608
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2609 If an error condition exists then return a string @var{msg} describing the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2610 error. Otherwise, return an empty string @qcode{""}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2611
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2612 The second input @qcode{"clear"} is optional. If supplied, the error
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2613 state on the stream will be cleared.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2614
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2615 The optional second output is a numeric indication of the error status.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2616 @var{err} is 1 if an error condition has been encountered and 0 otherwise.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2617
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2618 Note that @code{ferror} indicates if an error has already occurred, not
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2619 whether the next operation will result in an error condition.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2620 @seealso{fclear, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2621 @end deftypefn */)
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2622 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
2623 int nargin = args.length ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2624
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2625 if (nargin < 1 || nargin > 2)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2626 print_usage ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2627
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2628 octave_stream os = octave_stream_list::lookup (args(0), "ferror");
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2629
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2630 bool clear = false;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
2631
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2632 if (nargin == 2)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2633 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2634 std::string opt = args(1).string_value ();
20561
c41595061186 eliminate more simple uses of error_state
John W. Eaton <jwe@octave.org>
parents: 20457
diff changeset
2635
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2636 clear = (opt == "clear");
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2637 }
1755
3a9462b655f1 [project @ 1996-01-22 04:47:22 by jwe]
jwe
parents: 1750
diff changeset
2638
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2639 int error_number = 0;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2640
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2641 std::string error_message = os.error (clear, error_number);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2642
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2643 return ovl (error_message, error_number);
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2644 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2645
18477
aa7ca90ce746 avoid problems if popen is a macro
John W. Eaton <jwe@octave.org>
parents: 18040
diff changeset
2646 DEFUNX ("popen", Fpopen, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2647 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2648 @deftypefn {} {@var{fid} =} popen (@var{command}, @var{mode})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2649 Start a process and create a pipe.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2650
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2651 The name of the command to run is given by @var{command}. The argument
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2652 @var{mode} may be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2653
22720
766b0163b3b7 doc: Don't create @tables of type @code with @qcode entries.
Rik <rik@octave.org>
parents: 22511
diff changeset
2654 @table @asis
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2655 @item @qcode{"r"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2656 The pipe will be connected to the standard output of the process, and
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2657 open for reading.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2658
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2659 @item @qcode{"w"}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2660 The pipe will be connected to the standard input of the process, and
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2661 open for writing.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2662 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2663
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2664 The file identifier corresponding to the input or output stream of the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2665 process is returned in @var{fid}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2666
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2667 For example:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2668
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2669 @example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2670 @group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2671 fid = popen ("ls -ltr / | tail -3", "r");
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2672 while (ischar (s = fgets (fid)))
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2673 fputs (stdout, s);
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2674 endwhile
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2675
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2676 @print{} drwxr-xr-x 33 root root 3072 Feb 15 13:28 etc
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2677 @print{} drwxr-xr-x 3 root root 1024 Feb 15 13:28 lib
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2678 @print{} drwxrwxrwt 15 root root 2048 Feb 17 14:53 tmp
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2679 @end group
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2680 @end example
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2681 @seealso{popen2}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2682 @end deftypefn */)
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2683 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2684 if (args.length () != 2)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2685 print_usage ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2686
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2687 std::string name = args(0).xstring_value ("popen: COMMAND must be a string");
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2688 std::string mode = args(1).xstring_value ("popen: MODE must be a string");
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2689
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2690 octave_value retval;
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2691
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2692 if (mode == "r")
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2693 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2694 octave_stream ips = octave_iprocstream::create (name);
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2695
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2696 retval = octave_stream_list::insert (ips);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2697 }
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2698 else if (mode == "w")
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2699 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2700 octave_stream ops = octave_oprocstream::create (name);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2701
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2702 retval = octave_stream_list::insert (ops);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
2703 }
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2704 else
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2705 error ("popen: invalid MODE specified");
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2706
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2707 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2708 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2709
16308
122c1a7a3004 avoid trouble if pclose is a macro
John W. Eaton <jwe@octave.org>
parents: 16099
diff changeset
2710 DEFUNX ("pclose", Fpclose, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2711 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2712 @deftypefn {} {} pclose (@var{fid})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2713 Close a file identifier that was opened by @code{popen}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2714
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2715 The function @code{fclose} may also be used for the same purpose.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2716 @seealso{fclose, popen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2717 @end deftypefn */)
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2718 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2719 if (args.length () != 1)
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2720 print_usage ();
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2721
21127
df7891224709 maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents: 21126
diff changeset
2722 return ovl (octave_stream_list::remove (args(0), "pclose"));
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2723 }
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2724
19278
6ca096827123 Use tempname() rather than tmpnam() in core Octave.
Rik <rik@octave.org>
parents: 19268
diff changeset
2725 DEFUN (tempname, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2726 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2727 @deftypefn {} {@var{fname} =} tempname ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2728 @deftypefnx {} {@var{fname} =} tempname (@var{dir})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2729 @deftypefnx {} {@var{fname} =} tempname (@var{dir}, @var{prefix})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2730 Return a unique temporary filename as a string.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2731
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2732 If @var{prefix} is omitted, a value of @qcode{"oct-"} is used.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2733
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2734 If @var{dir} is also omitted, the default directory for temporary files
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2735 (@code{P_tmpdir}) is used. If @var{dir} is provided, it must exist,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2736 otherwise the default directory for temporary files is used.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2737
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2738 Programming Note: Because the named file is not opened by @code{tempname},
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2739 it is possible, though relatively unlikely, that it will not be available
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2740 by the time your program attempts to open it. If this is a concern,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2741 see @code{tmpfile}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2742 @seealso{mkstemp, tempdir, P_tmpdir, tmpfile}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2743 @end deftypefn */)
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
2744 {
20812
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20805
diff changeset
2745 int nargin = args.length ();
2936
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
2746
20812
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20805
diff changeset
2747 if (nargin > 2)
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2748 print_usage ();
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
2749
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2750 std::string dir;
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2751
20812
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20805
diff changeset
2752 if (nargin > 0)
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2753 dir = args(0).xstring_value ("tempname: DIR must be a string");
22511
1e81abd0314a tempname: respect the value of $TMPDIR if set, be consistent with tempdir
Mike Miller <mtmiller@octave.org>
parents: 22489
diff changeset
2754 else
1e81abd0314a tempname: respect the value of $TMPDIR if set, be consistent with tempdir
Mike Miller <mtmiller@octave.org>
parents: 22489
diff changeset
2755 dir = octave::sys::env::getenv ("TMPDIR");
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2756
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2757 std::string pfx ("oct-");
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2758
20812
d9ca869ca124 maint: Clean-up more instances of print_usage().
Rik <rik@octave.org>
parents: 20805
diff changeset
2759 if (nargin > 1)
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2760 pfx = args(1).xstring_value ("tempname: PREFIX must be a string");
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2761
21733
cb0fdd941d84 use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
2762 return ovl (octave::sys::tempnam (dir, pfx));
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
2763 }
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
2764
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2765 /*
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2766 %!test
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2767 %! if (ispc ())
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2768 %! envname = "TMP";
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2769 %! else
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2770 %! envname = "TMPDIR";
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2771 %! endif
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2772 %! envdir = getenv (envname);
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2773 %! unsetenv (envname);
21457
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2774 %! ## Strip trailing file separators from P_tmpdir
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2775 %! def_tmpdir = P_tmpdir;
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2776 %! while (length (def_tmpdir) > 2 && strfind (filesep ("all"), def_tmpdir(end)))
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2777 %! def_tmpdir(end) = [];
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2778 %! endwhile
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2779 %! unwind_protect
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2780 %! ## Test 0-argument form
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2781 %! fname = tempname ();
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19420
diff changeset
2782 %! [tmpdir, tmpfname] = fileparts (fname);
21457
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2783 %! assert (tmpdir, def_tmpdir);
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2784 %! assert (tmpfname (1:4), "oct-");
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19420
diff changeset
2785 %! ## Test 1-argument form
21457
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2786 %! tmp_tmpdir = [def_tmpdir filesep() substr(tmpfname, -5)];
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2787 %! mkdir (tmp_tmpdir) || error ("Unable to create tmp dir");
21457
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2788 %! setenv (envname, def_tmpdir);
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2789 %! fname = tempname (tmp_tmpdir);
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19420
diff changeset
2790 %! [tmpdir, tmpfname] = fileparts (fname);
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2791 %! assert (tmpdir, tmp_tmpdir);
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2792 %! assert (tmpfname (1:4), "oct-");
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2793 %! ## Test 1-argument form w/null tmpdir
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2794 %! fname = tempname ("");
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19420
diff changeset
2795 %! [tmpdir, tmpfname] = fileparts (fname);
21457
05ffef4ebf62 tempname: Fix failing BIST test when P_tmpdir has trailing slash
Mike Miller <mtmiller@octave.org>
parents: 21301
diff changeset
2796 %! assert (tmpdir, def_tmpdir);
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2797 %! assert (tmpfname (1:4), "oct-");
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19420
diff changeset
2798 %! ## Test 2-argument form
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2799 %! fname = tempname (tmp_tmpdir, "pfx-");
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19420
diff changeset
2800 %! [tmpdir, tmpfname] = fileparts (fname);
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2801 %! assert (tmpdir, tmp_tmpdir);
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2802 %! assert (tmpfname (1:4), "pfx-");
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2803 %! ## Test 2-argument form w/null prefix
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2804 %! fname = tempname (tmp_tmpdir, "");
19597
db92e7e28e1f strip trailing whitespace from most source files
John W. Eaton <jwe@octave.org>
parents: 19420
diff changeset
2805 %! [tmpdir, tmpfname] = fileparts (fname);
19420
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2806 %! assert (tmpdir, tmp_tmpdir);
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2807 %! assert (tmpfname (1:4), "file");
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2808 %! unwind_protect_cleanup
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2809 %! rmdir (tmp_tmpdir);
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2810 %! if (isempty (envdir))
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2811 %! unsetenv (envname);
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2812 %! else
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2813 %! setenv (envname, envdir);
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2814 %! endif
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2815 %! end_unwind_protect
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2816 */
82f2a3437e02 Fix tempname so it prioritizes user input dir rather than TMPDIR (bug #43844).
Rik <rik@octave.org>
parents: 19403
diff changeset
2817
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2818 DEFUN (tmpfile, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2819 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2820 @deftypefn {} {[@var{fid}, @var{msg}] =} tmpfile ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2821 Return the file ID corresponding to a new temporary file with a unique
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2822 name.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2823
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2824 The file is opened in binary read/write (@qcode{"w+b"}) mode and will be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2825 deleted automatically when it is closed or when Octave exits.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2826
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2827 If successful, @var{fid} is a valid file ID and @var{msg} is an empty
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2828 string. Otherwise, @var{fid} is -1 and @var{msg} contains a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2829 system-dependent error message.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2830 @seealso{tempname, mkstemp, tempdir, P_tmpdir}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2831 @end deftypefn */)
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2832 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2833 if (args.length () != 0)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2834 print_usage ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2835
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2836 octave_value_list retval;
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2837
21991
80659e58609f provide wrapper for tmpfile (bug #48337)
John W. Eaton <jwe@octave.org>
parents: 21966
diff changeset
2838 FILE *fid = octave_tmpfile_wrapper ();
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2839
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2840 if (fid)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2841 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2842 std::string nm;
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2843
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2844 std::ios::openmode md = fopen_mode_to_ios_mode ("w+b");
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2845
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2846 octave_stream s = octave_stdiostream::create (nm, fid, md);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2847
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2848 if (! s)
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2849 error ("tmpfile: failed to create octave_stdiostream object");
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2850
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2851 retval = ovl (octave_stream_list::insert (s), "");
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2852 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2853 else
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2854 {
21942
aab79a1885cc limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents: 21919
diff changeset
2855 retval = ovl (-1, std::strerror (errno));
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2856 }
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2857
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2858 return retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2859 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2860
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2861 DEFUN (mkstemp, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2862 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2863 @deftypefn {} {[@var{fid}, @var{name}, @var{msg}] =} mkstemp ("@var{template}")
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2864 @deftypefnx {} {[@var{fid}, @var{name}, @var{msg}] =} mkstemp ("@var{template}", @var{delete})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2865 Return the file descriptor @var{fid} corresponding to a new temporary file
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2866 with a unique name created from @var{template}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2867
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2868 The last six characters of @var{template} must be @qcode{"XXXXXX"} and
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2869 these are replaced with a string that makes the filename unique. The file
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2870 is then created with mode read/write and permissions that are system
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2871 dependent (on GNU/Linux systems, the permissions will be 0600 for versions
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2872 of glibc 2.0.7 and later). The file is opened in binary mode and with the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2873 @w{@code{O_EXCL}} flag.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2874
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2875 If the optional argument @var{delete} is supplied and is true, the file will
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2876 be deleted automatically when Octave exits.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2877
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2878 If successful, @var{fid} is a valid file ID, @var{name} is the name of the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2879 file, and @var{msg} is an empty string. Otherwise, @var{fid} is -1,
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2880 @var{name} is empty, and @var{msg} contains a system-dependent error
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2881 message.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2882 @seealso{tempname, tempdir, P_tmpdir, tmpfile, fopen}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2883 @end deftypefn */)
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2884 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2885 int nargin = args.length ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2886
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2887 if (nargin < 1 || nargin > 2)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2888 print_usage ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2889
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2890 std::string tmpl8 = args(0).xstring_value ("mkstemp: TEMPLATE argument must be a string");
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2891
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2892 octave_value_list retval = ovl (-1, "", "");
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2893
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2894 OCTAVE_LOCAL_BUFFER (char, tmp, tmpl8.size () + 1);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2895 strcpy (tmp, tmpl8.c_str ());
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2896
21888
00f1249f2483 create wrappers for some gnulib functions
John W. Eaton <jwe@octave.org>
parents: 21852
diff changeset
2897 int fd = octave_mkostemp_wrapper (tmp);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2898
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2899 if (fd < 0)
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2900 {
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2901 retval(0) = fd;
21942
aab79a1885cc limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents: 21919
diff changeset
2902 retval(2) = std::strerror (errno);
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2903 }
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2904 else
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2905 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2906 const char *fopen_mode = "w+b";
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2907
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2908 FILE *fid = fdopen (fd, fopen_mode);
20581
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
2909
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2910 if (! fid)
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2911 {
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2912 retval(0) = -1;
21942
aab79a1885cc limit gnulib headers to liboctave/wrappers directory
John W. Eaton <jwe@octave.org>
parents: 21919
diff changeset
2913 retval(2) = std::strerror (errno);
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2914 }
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2915 else
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2916 {
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2917 std::string nm = tmp;
20581
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
2918
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2919 std::ios::openmode md = fopen_mode_to_ios_mode (fopen_mode);
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2920
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2921 octave_stream s = octave_stdiostream::create (nm, fid, md);
20581
fd0efcdb3718 use new string_value method to handle value extraction errors
John W. Eaton <jwe@octave.org>
parents: 20561
diff changeset
2922
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2923 if (! s)
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2924 error ("mkstemp: failed to create octave_stdiostream object");
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2925
20884
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2926 retval(0) = octave_stream_list::insert (s);
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2927 retval(1) = nm;
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2928
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2929 if (nargin == 2 && args(1).is_true ())
f1b2a2dbc0e1 2015 Code Sprint: use ovl () in C++ files.
José Luis García Pallero <jgpallero@gmail.com>
parents: 20861
diff changeset
2930 mark_for_deletion (nm);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2931 }
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2932 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2933
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2934 return retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2935 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2936
20200
d9f35ceff9e1 Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents: 20198
diff changeset
2937 // FIXME: This routine also exists verbatim in syscalls.cc.
d9f35ceff9e1 Change mkfifo to use an octal argument for MODE (bug #45054).
Rik <rik@octave.org>
parents: 20198
diff changeset
2938 // Maybe change to be a general utility routine.
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2939 static int
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2940 convert (int x, int ibase, int obase)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2941 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2942 int retval = 0;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2943
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2944 int tmp = x % obase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2945
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2946 if (tmp > ibase - 1)
20428
7ac907da9fba Use error() rather than ::error() unless explicitly required.
Rik <rik@octave.org>
parents: 20200
diff changeset
2947 error ("umask: invalid digit");
21055
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2948
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2949 retval = tmp;
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2950 int mult = ibase;
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2951 while ((x = (x - tmp) / obase))
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2952 {
21055
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2953 tmp = x % obase;
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2954
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2955 if (tmp > ibase - 1)
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2956 error ("umask: invalid digit");
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2957
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2958 retval += mult * tmp;
5e00ed38a58b maint: Replace if/error/else paradigm with just if/error.
Rik <rik@octave.org>
parents: 20962
diff changeset
2959 mult *= ibase;
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2960 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2961
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2962 return retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2963 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2964
10197
4d433bd2d4dc attempt to avoid trouble with gnulib #defines in a consistent way
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2965 DEFUNX ("umask", Fumask, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2966 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2967 @deftypefn {} {} umask (@var{mask})
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2968 Set the permission mask for file creation.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2969
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2970 The parameter @var{mask} is an integer, interpreted as an octal number.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2971
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2972 If successful, returns the previous value of the mask (as an integer to be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2973 interpreted as an octal number); otherwise an error message is printed.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2974
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2975 The permission mask is a UNIX concept used when creating new objects on a
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2976 file system such as files, directories, or named FIFOs. The object to be
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2977 created has base permissions in an octal number @var{mode} which are
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2978 modified according to the octal value of @var{mask}. The final permissions
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2979 for the new object are @code{@var{mode} - @var{mask}}.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2980 @seealso{fopen, mkdir, mkfifo}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
2981 @end deftypefn */)
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2982 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2983 if (args.length () != 1)
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2984 print_usage ();
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2985
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2986 int mask = args(0).xint_value ("umask: MASK must be an integer");
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2987
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2988 if (mask < 0)
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2989 error ("umask: MASK must be a positive integer value");
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
2990
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2991 int oct_mask = convert (mask, 8, 10);
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2992
21733
cb0fdd941d84 use namespace for system file_ops class
John W. Eaton <jwe@octave.org>
parents: 21724
diff changeset
2993 int status = convert (octave::sys::umask (oct_mask), 10, 8);
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2994
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2995 if (status >= 0)
20918
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2996 return ovl (status);
6f0bd96f93c0 maint: Use new C++ archetype in more files.
Rik <rik@octave.org>
parents: 20898
diff changeset
2997 else
20941
a4f5da7c5463 maint: Replace "octave_value_list ()" with "ovl ()".
Rik <rik@octave.org>
parents: 20940
diff changeset
2998 return ovl ();
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2999 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
3000
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3001 static octave_value
6483
d00da2148c53 [project @ 2007-04-04 02:58:48 by jwe]
jwe
parents: 6456
diff changeset
3002 const_value (const char *, const octave_value_list& args, int val)
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
3003 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
3004 if (args.length () != 0)
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
3005 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3006
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
3007 return octave_value (val);
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3008 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3009
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3010 DEFUNX ("P_tmpdir", FP_tmpdir, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3011 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3012 @deftypefn {} {} P_tmpdir ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3013 Return the name of the host system's @strong{default} directory for
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3014 temporary files.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3015
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3016 Programming Note: The value returned by @code{P_tmpdir} is always the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3017 default location. This value may not agree with that returned from
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3018 @code{tempdir} if the user has overridden the default with the @env{TMPDIR}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3019 environment variable.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3020 @seealso{tempdir, tempname, mkstemp, tmpfile}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3021 @end deftypefn */)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3022 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
3023 if (args.length () != 0)
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
3024 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3025
21127
df7891224709 maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents: 21126
diff changeset
3026 return ovl (get_P_tmpdir ());
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3027 }
2341
6ee55c0f25a9 [project @ 1996-07-24 10:33:09 by jwe]
jwe
parents: 2324
diff changeset
3028
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3029 // NOTE: the values of SEEK_SET, SEEK_CUR, and SEEK_END have to be
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3030 // this way for Matlab compatibility.
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3031
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3032 DEFUNX ("SEEK_SET", FSEEK_SET, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3033 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3034 @deftypefn {} {} SEEK_SET ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3035 @deftypefnx {} {} SEEK_CUR ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3036 @deftypefnx {} {} SEEK_END ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3037 Return the numerical value to pass to @code{fseek} to perform one of the
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3038 following actions:
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3039
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3040 @table @code
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3041 @item SEEK_SET
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3042 Position file relative to the beginning.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3043
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3044 @item SEEK_CUR
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3045 Position file relative to the current position.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3046
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3047 @item SEEK_END
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3048 Position file relative to the end.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3049 @end table
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3050 @seealso{fseek}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3051 @end deftypefn */)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3052 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3053 return const_value ("SEEK_SET", args, -1);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3054 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
3055
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3056 DEFUNX ("SEEK_CUR", FSEEK_CUR, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3057 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3058 @deftypefn {} {} SEEK_CUR ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3059 Return the numerical value to pass to @code{fseek} to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3060 position the file pointer relative to the current position.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3061 @seealso{SEEK_SET, SEEK_END}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3062 @end deftypefn */)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3063 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3064 return const_value ("SEEK_CUR", args, 0);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3065 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
3066
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3067 DEFUNX ("SEEK_END", FSEEK_END, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3068 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3069 @deftypefn {} {} SEEK_END ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3070 Return the numerical value to pass to @code{fseek} to
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3071 position the file pointer relative to the end of the file.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3072 @seealso{SEEK_SET, SEEK_CUR}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3073 @end deftypefn */)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3074 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3075 return const_value ("SEEK_END", args, 1);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3076 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3077
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3078 static octave_value
6483
d00da2148c53 [project @ 2007-04-04 02:58:48 by jwe]
jwe
parents: 6456
diff changeset
3079 const_value (const char *, const octave_value_list& args,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
3080 const octave_value& val)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3081 {
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
3082 if (args.length () != 0)
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
3083 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3084
20805
2d6ddb2b157c eliminate return statements after calls to print_usage
John W. Eaton <jwe@octave.org>
parents: 20785
diff changeset
3085 return octave_value (val);
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3086 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3087
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3088 DEFUNX ("stdin", Fstdin, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3089 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3090 @deftypefn {} {} stdin ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3091 Return the numeric value corresponding to the standard input stream.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3092
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3093 When Octave is used interactively, stdin is filtered through the command
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3094 line editing functions.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3095 @seealso{stdout, stderr}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3096 @end deftypefn */)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3097 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3098 return const_value ("stdin", args, stdin_file);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3099 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
3100
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3101 DEFUNX ("stdout", Fstdout, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3102 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3103 @deftypefn {} {} stdout ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3104 Return the numeric value corresponding to the standard output stream.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3105
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3106 Data written to the standard output is normally filtered through the pager.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3107 @seealso{stdin, stderr}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3108 @end deftypefn */)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3109 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3110 return const_value ("stdout", args, stdout_file);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3111 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
3112
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3113 DEFUNX ("stderr", Fstderr, args, ,
21966
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3114 doc: /* -*- texinfo -*-
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3115 @deftypefn {} {} stderr ()
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3116 Return the numeric value corresponding to the standard error stream.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3117
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3118 Even if paging is turned on, the standard error is not sent to the pager.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3119 It is useful for error messages and prompts.
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3120 @seealso{stdin, stdout}
112b20240c87 move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents: 21942
diff changeset
3121 @end deftypefn */)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3122 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
3123 return const_value ("stderr", args, stderr_file);
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
3124 }
22407
34ce5be04942 maint: Style check C++ code in libinterp/.
Rik <rik@octave.org>
parents: 22327
diff changeset
3125