annotate src/file-io.cc @ 11572:7d6d8c1e471f

Grammarcheck Texinfo for files in src directory.
author Rik <octave@nomad.inbox5.com>
date Wed, 19 Jan 2011 17:51:22 -0800
parents 57632dea2446
children 12df7854fa7c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2
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fd0a3ac60b0e update copyright notices
John W. Eaton <jwe@octave.org>
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3 Copyright (C) 1993-2011 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
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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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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 #ifdef 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 <climits>
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43 #include <cstdio>
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45 #include <iostream>
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46 #include <stack>
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47 #include <vector>
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48
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49 #include <sys/types.h>
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50 #include <unistd.h>
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51
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52 #ifdef HAVE_ZLIB_H
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53 #include <zlib.h>
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54 #endif
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55
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56 #include "error.h"
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57 #include "file-ops.h"
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58 #include "file-stat.h"
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59 #include "lo-ieee.h"
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60 #include "oct-env.h"
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61 #include "oct-locbuf.h"
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62
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63 #include "defun.h"
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64 #include "file-io.h"
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65 #include "load-path.h"
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66 #include "oct-fstrm.h"
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67 #include "oct-iostrm.h"
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68 #include "oct-map.h"
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69 #include "oct-obj.h"
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70 #include "oct-prcstrm.h"
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71 #include "oct-stream.h"
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72 #include "oct-strstrm.h"
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73 #include "pager.h"
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74 #include "sysdep.h"
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75 #include "utils.h"
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76 #include "variables.h"
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77
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78 static octave_value stdin_file;
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79 static octave_value stdout_file;
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80 static octave_value stderr_file;
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81
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82 static octave_stream stdin_stream;
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83 static octave_stream stdout_stream;
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84 static octave_stream stderr_stream;
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85
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86 void
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87 initialize_file_io (void)
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88 {
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89 stdin_stream = octave_istream::create (&std::cin, "stdin");
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91 // This uses octave_stdout (see pager.h), not std::cout so that Octave's
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92 // standard output stream will pass through the pager.
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93
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94 stdout_stream = octave_ostream::create (&octave_stdout, "stdout");
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95
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96 stderr_stream = octave_ostream::create (&std::cerr, "stderr");
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97
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98 stdin_file = octave_stream_list::insert (stdin_stream);
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99 stdout_file = octave_stream_list::insert (stdout_stream);
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100 stderr_file = octave_stream_list::insert (stderr_stream);
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101 }
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102
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103 void
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104 close_files (void)
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105 {
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106 octave_stream_list::clear ();
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107 }
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108
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109 // List of files to delete when we exit or crash.
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110 //
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111 // FIXME -- this should really be static, but that causes
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112 // problems on some systems.
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113 std::stack <std::string> tmp_files;
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114
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115 void
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116 mark_for_deletion (const std::string& file)
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117 {
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118 tmp_files.push (file);
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119 }
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120
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121 void
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122 cleanup_tmp_files (void)
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123 {
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124 while (! tmp_files.empty ())
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125 {
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126 std::string filename = tmp_files.top ();
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127 tmp_files.pop ();
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128 gnulib::unlink (filename.c_str ());
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129 }
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130 }
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131
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132 static std::ios::openmode
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133 fopen_mode_to_ios_mode (const std::string& mode_arg)
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134 {
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135 std::ios::openmode retval = std::ios::in;
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136
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137 if (! mode_arg.empty ())
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138 {
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139 // Could probably be faster, but does it really matter?
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140
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141 std::string mode = mode_arg;
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142
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143 // 'W' and 'R' are accepted as 'w' and 'r', but we warn about
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144 // them because Matlab says they perform "automatic flushing"
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145 // but we don't know precisely what action that implies.
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146
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147 size_t pos = mode.find ('W');
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148
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149 if (pos != std::string::npos)
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150 {
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151 warning ("fopen: treating mode \"W\" as equivalent to \"w\"");
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152 mode[pos] = 'w';
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153 }
7078
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jwe
parents: 7017
diff changeset
154
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
155 pos = mode.find ('R');
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
156
8021
85184151822e fix typo in NPOS change
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parents: 8019
diff changeset
157 if (pos != std::string::npos)
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parents: 10259
diff changeset
158 {
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
159 warning ("fopen: treating mode \"R\" as equivalent to \"r\"");
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
160 mode[pos] = 'r';
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
161 }
7078
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jwe
parents: 7017
diff changeset
162
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
163 pos = mode.find ('z');
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
164
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85184151822e fix typo in NPOS change
John W. Eaton <jwe@octave.org>
parents: 8019
diff changeset
165 if (pos != std::string::npos)
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parents: 10259
diff changeset
166 {
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
167 #if defined (HAVE_ZLIB)
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parents: 10259
diff changeset
168 mode.erase (pos, 1);
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
169 #else
10315
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parents: 10259
diff changeset
170 error ("this version of Octave does not support gzipped files");
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
171 #endif
10315
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parents: 10259
diff changeset
172 }
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
173
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
174 if (! error_state)
10315
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parents: 10259
diff changeset
175 {
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
176 if (mode == "rt")
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
177 retval = std::ios::in;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
178 else if (mode == "wt")
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
179 retval = std::ios::out | std::ios::trunc;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
180 else if (mode == "at")
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
181 retval = std::ios::out | std::ios::app;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
182 else if (mode == "r+t" || mode == "rt+")
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
183 retval = std::ios::in | std::ios::out;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
184 else if (mode == "w+t" || mode == "wt+")
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
185 retval = std::ios::in | std::ios::out | std::ios::trunc;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
186 else if (mode == "a+t" || mode == "at+")
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
187 retval = std::ios::in | std::ios::out | std::ios::app;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
188 else if (mode == "rb" || mode == "r")
57a59eae83cc untabify src C++ source files
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189 retval = std::ios::in | std::ios::binary;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
190 else if (mode == "wb" || mode == "w")
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
191 retval = std::ios::out | std::ios::trunc | std::ios::binary;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
192 else if (mode == "ab" || mode == "a")
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parents: 10259
diff changeset
193 retval = std::ios::out | std::ios::app | std::ios::binary;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
194 else if (mode == "r+b" || mode == "rb+" || mode == "r+")
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diff changeset
195 retval = std::ios::in | std::ios::out | std::ios::binary;
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parents: 10259
diff changeset
196 else if (mode == "w+b" || mode == "wb+" || mode == "w+")
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diff changeset
197 retval = (std::ios::in | std::ios::out | std::ios::trunc
57a59eae83cc untabify src C++ source files
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diff changeset
198 | std::ios::binary);
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
199 else if (mode == "a+b" || mode == "ab+" || mode == "a+")
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diff changeset
200 retval = (std::ios::in | std::ios::out | std::ios::app
57a59eae83cc untabify src C++ source files
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diff changeset
201 | std::ios::binary);
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
202 else
57a59eae83cc untabify src C++ source files
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diff changeset
203 ::error ("invalid mode specified");
57a59eae83cc untabify src C++ source files
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diff changeset
204 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
205 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
206
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
207 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
208 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
209
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
210 DEFUN (fclose, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
211 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
212 @deftypefn {Built-in Function} {} fclose (@var{fid})\n\
11572
7d6d8c1e471f Grammarcheck Texinfo for files in src directory.
Rik <octave@nomad.inbox5.com>
parents: 11570
diff changeset
213 Close the specified file. If successful, @code{fclose} returns 0,\n\
4594
3a284f89aa41 [project @ 2003-11-12 02:27:28 by jwe]
jwe
parents: 4587
diff changeset
214 otherwise, it returns -1.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
215 @seealso{fopen, fseek, ftell}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
216 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
217 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
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parents: 4102
diff changeset
218 octave_value retval = -1;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
219
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
220 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
221
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
222 if (nargin == 1)
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
223 retval = octave_stream_list::remove (args(0), "fclose");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
224 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
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parents: 5775
diff changeset
225 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
226
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
227 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
228 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
229
5144
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
230 DEFUN (fclear, args, ,
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
231 "-*- texinfo -*-\n\
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
232 @deftypefn {Built-in Function} {} fclear (@var{fid})\n\
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
233 Clear the stream state for the specified file.\n\
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
234 @end deftypefn")
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
235 {
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
236 octave_value retval;
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
237
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
238 int nargin = args.length ();
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
239
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
240 if (nargin == 1)
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
241 {
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
242 int fid = octave_stream_list::get_file_number (args (0));
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
243
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
244 octave_stream os = octave_stream_list::lookup (fid, "fclear");
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
245
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
246 if (! error_state)
10315
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diff changeset
247 os.clearerr ();
5144
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
248 }
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
249 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
250 print_usage ();
5144
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
251
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
252 return retval;
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
253 }
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
254
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
255 DEFUN (fflush, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
256 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
257 @deftypefn {Built-in Function} {} fflush (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
258 Flush output to @var{fid}. This is useful for ensuring that all\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
259 pending output makes it to the screen before some other event occurs.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
260 For example, it is always a good idea to flush the standard output\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
261 stream before calling @code{input}.\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
262 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
263 @code{fflush} returns 0 on success and an OS dependent error value\n\
10791
3140cb7a05a1 Add spellchecker scripts for Octave and run spellcheck of documentation
Rik <octave@nomad.inbox5.com>
parents: 10411
diff changeset
264 (@minus{}1 on Unix) on error.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
265 @seealso{fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
266 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
267 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
268 octave_value retval = -1;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
269
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
270 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
271
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
272 if (nargin == 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
273 {
5775
ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe]
jwe
parents: 5749
diff changeset
274 // FIXME -- any way to avoid special case for stdout?
2609
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
275
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
276 int fid = octave_stream_list::get_file_number (args (0));
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
277
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
278 if (fid == 1)
10315
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parents: 10259
diff changeset
279 {
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
280 flush_octave_stdout ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
281
10315
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parents: 10259
diff changeset
282 retval = 0;
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
283 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
284 else
10315
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parents: 10259
diff changeset
285 {
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
286 octave_stream os = octave_stream_list::lookup (fid, "fflush");
2609
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
287
10315
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parents: 10259
diff changeset
288 if (! error_state)
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
289 retval = os.flush ();
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
290 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
291 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
292 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
293 print_usage ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
294
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
295 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
296 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
297
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
298 DEFUN (fgetl, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
299 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
300 @deftypefn {Built-in Function} {} fgetl (@var{fid}, @var{len})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
301 Read characters from a file, stopping after a newline, or EOF,\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
302 or @var{len} characters have been read. The characters read, excluding\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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303 the possible trailing newline, are returned as a string.\n\
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304 \n\
3372
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305 If @var{len} is omitted, @code{fgetl} reads until the next newline\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
306 character.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
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diff changeset
307 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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308 If there are no more characters to read, @code{fgetl} returns @minus{}1.\n\
5642
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309 @seealso{fread, fscanf}\n\
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parents: 5421
diff changeset
310 @end deftypefn")
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311 {
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312 static std::string who = "fgetl";
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313
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314 octave_value_list retval;
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315
4233
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316 retval(1) = 0;
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
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317 retval(0) = -1;
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318
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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319 int nargin = args.length ();
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320
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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321 if (nargin == 1 || nargin == 2)
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322 {
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323 octave_stream os = octave_stream_list::lookup (args(0), who);
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324
3341
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325 if (! error_state)
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326 {
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327 octave_value len_arg = (nargin == 2) ? args(1) : octave_value ();
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328
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329 bool err = false;
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330
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331 std::string tmp = os.getl (len_arg, err, who);
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332
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333 if (! (error_state || err))
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334 {
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335 retval(1) = tmp.length ();
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336 retval(0) = tmp;
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337 }
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338 }
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339 }
1339
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340 else
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341 print_usage ();
1339
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342
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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343 return retval;
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
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344 }
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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345
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346 DEFUN (fgets, args, ,
3372
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347 "-*- texinfo -*-\n\
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348 @deftypefn {Built-in Function} {} fgets (@var{fid}, @var{len})\n\
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349 Read characters from a file, stopping after a newline, or EOF,\n\
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350 or @var{len} characters have been read. The characters read, including\n\
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351 the possible trailing newline, are returned as a string.\n\
529
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352 \n\
3372
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353 If @var{len} is omitted, @code{fgets} reads until the next newline\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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parents: 3342
diff changeset
354 character.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
355 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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356 If there are no more characters to read, @code{fgets} returns @minus{}1.\n\
7781
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bill@denney.ws
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357 @seealso{fputs, fopen, fread, fscanf}\n\
5642
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358 @end deftypefn")
529
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parents: 506
diff changeset
359 {
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360 static std::string who = "fgets";
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361
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diff changeset
362 octave_value_list retval;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
363
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
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parents: 2458
diff changeset
364 retval(1) = 0.0;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
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365 retval(0) = -1.0;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
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parents: 506
diff changeset
366
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
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parents: 506
diff changeset
367 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
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parents: 506
diff changeset
368
1338
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369 if (nargin == 1 || nargin == 2)
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diff changeset
370 {
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diff changeset
371 octave_stream os = octave_stream_list::lookup (args(0), who);
2095
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parents: 1996
diff changeset
372
3341
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diff changeset
373 if (! error_state)
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374 {
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diff changeset
375 octave_value len_arg = (nargin == 2) ? args(1) : octave_value ();
2095
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diff changeset
376
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diff changeset
377 bool err = false;
2095
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diff changeset
378
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diff changeset
379 std::string tmp = os.gets (len_arg, err, who);
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diff changeset
380
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diff changeset
381 if (! (error_state || err))
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382 {
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383 retval(1) = tmp.length ();
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diff changeset
384 retval(0) = tmp;
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diff changeset
385 }
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diff changeset
386 }
2095
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jwe
parents: 1996
diff changeset
387 }
1338
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
388 else
5823
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jwe
parents: 5775
diff changeset
389 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
390
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
391 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
392 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
393
9701
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parents: 9322
diff changeset
394 DEFUN (fskipl, args, ,
531280b07625 implement fskipl
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parents: 9322
diff changeset
395 "-*- texinfo -*-\n\
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diff changeset
396 @deftypefn {Built-in Function} {} fskipl (@var{fid}, @var{count})\n\
11572
7d6d8c1e471f Grammarcheck Texinfo for files in src directory.
Rik <octave@nomad.inbox5.com>
parents: 11570
diff changeset
397 Skip a given number of lines, i.e., discards characters until an end-of-line\n\
9701
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parents: 9322
diff changeset
398 is met exactly @var{count}-times, or end-of-file occurs.\n\
531280b07625 implement fskipl
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parents: 9322
diff changeset
399 Returns the number of lines skipped (end-of-line sequences encountered).\n\
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parents: 9322
diff changeset
400 If @var{count} is omitted, it defaults to 1. @var{count} may also be\n\
531280b07625 implement fskipl
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parents: 9322
diff changeset
401 @code{Inf}, in which case lines are skipped to the end of file.\n\
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
402 This form is suitable for counting lines in a file.\n\
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
403 @seealso{fgetl, fgets}\n\
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
404 @end deftypefn")
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
405 {
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
406 static std::string who = "fskipl";
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
407
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
408 octave_value retval;
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
409
531280b07625 implement fskipl
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parents: 9322
diff changeset
410 int nargin = args.length ();
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
411
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
412 if (nargin == 1 || nargin == 2)
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
413 {
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
414 octave_stream os = octave_stream_list::lookup (args(0), who);
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
415
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
416 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
417 {
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
418 octave_value count_arg = (nargin == 2) ? args(1) : octave_value ();
9701
531280b07625 implement fskipl
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parents: 9322
diff changeset
419
10315
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diff changeset
420 bool err = false;
9701
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
421
10315
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
422 long tmp = os.skipl (count_arg, err, who);
9701
531280b07625 implement fskipl
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parents: 9322
diff changeset
423
10315
57a59eae83cc untabify src C++ source files
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diff changeset
424 if (! (error_state || err))
9701
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
425 retval = tmp;
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
426 }
9701
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
427 }
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
428 else
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
429 print_usage ();
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
430
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
431 return retval;
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
531280b07625 implement fskipl
Jaroslav Hajek <highegg@gmail.com>
parents: 9322
diff changeset
434
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
435 static octave_stream
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
436 do_stream_open (const std::string& name, const std::string& mode,
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
437 const std::string& arch, int& fid)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
438 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
439 octave_stream retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
440
2095
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parents: 1996
diff changeset
441 fid = -1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
442
4036
1432e11733d1 [project @ 2002-08-12 18:38:40 by jwe]
jwe
parents: 4028
diff changeset
443 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
444
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
445 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
446 {
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
447 oct_mach_info::float_format flt_fmt =
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
448 oct_mach_info::string_to_float_format (arch);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
449
4798
da0d1c453971 [project @ 2004-02-24 17:30:05 by jwe]
jwe
parents: 4797
diff changeset
450 if (! error_state)
10315
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John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
451 {
57a59eae83cc untabify src C++ source files
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parents: 10259
diff changeset
452 std::string fname = file_ops::tilde_expand (name);
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
453
10315
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John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
454 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
455
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
456 if (! (md & std::ios::out
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
457 || octave_env::absolute_pathname (fname)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
458 || octave_env::rooted_relative_pathname (fname)))
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
459 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
460 if (! fs.exists ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
461 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
462 std::string tmp
10250
2d47356a7a1a use gnulib getcwd module
John W. Eaton <jwe@octave.org>
parents: 10197
diff changeset
463 = octave_env::make_absolute (load_path::find_file (fname));
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
464
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
465 if (! tmp.empty ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
466 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
467 warning_with_id ("Octave:fopen-file-in-path",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
468 "fopen: file found in load path");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
469 fname = tmp;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
470 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
471 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
472 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
473
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
474 if (! fs.is_dir ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
475 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
476 std::string tmode = mode;
6405
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
477
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
478 // Use binary mode if 't' is not specified, but don't add
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
479 // 'b' if it is already present.
6405
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
480
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
481 size_t bpos = tmode.find ('b');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
482 size_t tpos = tmode.find ('t');
7730
b68e44c90afe file-io.cc (do_stream_open): return -1 for directories
John W. Eaton <jwe@octave.org>
parents: 7708
diff changeset
483
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
484 if (bpos == std::string::npos && tpos == std::string::npos)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
485 tmode += 'b';
6405
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
486
6905
aee959a21c4b [project @ 2007-09-17 16:00:30 by jwe]
jwe
parents: 6838
diff changeset
487 #if defined (HAVE_ZLIB)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
488 size_t pos = tmode.find ('z');
4798
da0d1c453971 [project @ 2004-02-24 17:30:05 by jwe]
jwe
parents: 4797
diff changeset
489
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
490 if (pos != std::string::npos)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
491 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
492 tmode.erase (pos, 1);
7730
b68e44c90afe file-io.cc (do_stream_open): return -1 for directories
John W. Eaton <jwe@octave.org>
parents: 7708
diff changeset
493
11004
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
494 FILE *fptr = ::fopen (fname.c_str (), tmode.c_str ());
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
495
11081
f9284142a060 avoid another use of ::fileno
John W. Eaton <jwe@octave.org>
parents: 11004
diff changeset
496 int fd = fileno (fptr);
11004
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
497
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
498 gzFile gzf = ::gzdopen (fd, tmode.c_str ());
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
499
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
500 if (fptr)
11004
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
501 retval = octave_zstdiostream::create (fname, gzf, fd,
594adb99a25e cache file id in octave_tstdiostream class
John W. Eaton <jwe@octave.org>
parents: 10840
diff changeset
502 md, flt_fmt);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
503 else
10411
479cc8a0a846 use gnulib namespace
John W. Eaton <jwe@octave.org>
parents: 10350
diff changeset
504 retval.error (gnulib::strerror (errno));
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
505 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
506 else
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
507 #endif
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
508 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
509 FILE *fptr = ::fopen (fname.c_str (), tmode.c_str ());
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
510
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
511 retval = octave_stdiostream::create (fname, fptr, md, flt_fmt);
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
512
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
513 if (! fptr)
10411
479cc8a0a846 use gnulib namespace
John W. Eaton <jwe@octave.org>
parents: 10350
diff changeset
514 retval.error (gnulib::strerror (errno));
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
515 }
7730
b68e44c90afe file-io.cc (do_stream_open): return -1 for directories
John W. Eaton <jwe@octave.org>
parents: 7708
diff changeset
516
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
517 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
518 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
519 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
520
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
521 return retval;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
522 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
523
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
524 static octave_stream
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
525 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
526 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
527 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
528 octave_stream retval;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
529
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
530 fid = -1;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
531
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
532 std::string name = tc_name.string_value ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
533
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
534 if (! error_state)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
535 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
536 std::string mode = tc_mode.string_value ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
537
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
538 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
539 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
540 std::string arch = tc_arch.string_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
541
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
542 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
543 retval = do_stream_open (name, mode, arch, fid);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
544 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
545 ::error ("%s: architecture type must be a string", fcn);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
546 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
547 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
548 ::error ("%s: file mode must be a string", fcn);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
549 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
550 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
551 ::error ("%s: file name must be a string", fcn);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
552
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
553 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
554 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
555
11146
69b2f237060e file-io.cc (Ffopen): argument parsing tweak
John W. Eaton <jwe@octave.org>
parents: 11081
diff changeset
556 DEFUN (fopen, args, nargout,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
557 "-*- texinfo -*-\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
558 @deftypefn {Built-in Function} {[@var{fid}, @var{msg}] =} fopen (@var{name}, @var{mode}, @var{arch})\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
559 @deftypefnx {Built-in Function} {@var{fid_list} =} fopen (\"all\")\n\
5353
df230b7df93c [project @ 2005-05-18 02:18:24 by jwe]
jwe
parents: 5333
diff changeset
560 @deftypefnx {Built-in Function} {[@var{file}, @var{mode}, @var{arch}] =} fopen (@var{fid})\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
561 The first form of the @code{fopen} function opens the named file with\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
562 the specified mode (read-write, read-only, etc.) and architecture\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
563 interpretation (IEEE big endian, IEEE little endian, etc.), and returns\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
564 an integer value that may be used to refer to the file later. If an\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
565 error occurs, @var{fid} is set to @minus{}1 and @var{msg} contains the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
566 corresponding system error message. The @var{mode} is a one or two\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
567 character string that specifies whether the file is to be opened for\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
568 reading, writing, or both.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
569 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
570 The second form of the @code{fopen} function returns a vector of file ids\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
571 corresponding to all the currently open files, excluding the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
572 @code{stdin}, @code{stdout}, and @code{stderr} streams.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
573 \n\
5353
df230b7df93c [project @ 2005-05-18 02:18:24 by jwe]
jwe
parents: 5333
diff changeset
574 The third form of the @code{fopen} function returns information about the\n\
df230b7df93c [project @ 2005-05-18 02:18:24 by jwe]
jwe
parents: 5333
diff changeset
575 open file given its file id.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
576 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
577 For example,\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
578 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
579 @example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
580 myfile = fopen (\"splat.dat\", \"r\", \"ieee-le\");\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
581 @end example\n\
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
582 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
583 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
584 opens the file @file{splat.dat} for reading. If necessary, binary\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
585 numeric values will be read assuming they are stored in IEEE format with\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
586 the least significant bit first, and then converted to the native\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
587 representation.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
588 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
589 Opening a file that is already open simply opens it again and returns a\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
590 separate file id. It is not an error to open a file several times,\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
591 though writing to the same file through several different file ids may\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
592 produce unexpected results.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
593 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
594 The possible values @samp{mode} may have are\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
595 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
596 @table @asis\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
597 @item @samp{r}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
598 Open a file for reading.\n\
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
599 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
600 @item @samp{w}\n\
7001
8b0cfeb06365 [project @ 2007-10-10 18:02:59 by jwe]
jwe
parents: 6905
diff changeset
601 Open a file for writing. The previous contents are discarded.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
602 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
603 @item @samp{a}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
604 Open or create a file for writing at the end of the file.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
605 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
606 @item @samp{r+}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
607 Open an existing file for reading and writing.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
608 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
609 @item @samp{w+}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
610 Open a file for reading or writing. The previous contents are\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
611 discarded.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
612 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
613 @item @samp{a+}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
614 Open or create a file for reading or writing at the end of the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
615 file.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
616 @end table\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
617 \n\
4865
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
618 Append a \"t\" to the mode string to open the file in text mode or a\n\
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
619 \"b\" to open in binary mode. On Windows and Macintosh systems, text\n\
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
620 mode reading and writing automatically converts linefeeds to the\n\
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
621 appropriate line end character for the system (carriage-return linefeed\n\
6665
cfb849d6f314 [project @ 2007-05-28 05:45:32 by jwe]
jwe
parents: 6483
diff changeset
622 on Windows, carriage-return on Macintosh). The default if no mode is\n\
4865
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
623 specified is binary mode.\n\
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
624 \n\
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
625 Additionally, you may append a \"z\" to the mode string to open a\n\
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
626 gzipped file for reading or writing. For this to be successful, you\n\
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
627 must also open the file in binary mode.\n\
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
628 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
629 The parameter @var{arch} is a string specifying the default data format\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
630 for the file. Valid values for @var{arch} are:\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
631 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
632 @table @asis\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
633 @samp{native}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
634 The format of the current machine (this is the default).\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
635 \n\
4082
b8bae1ba4651 [project @ 2002-10-01 18:10:05 by jwe]
jwe
parents: 4070
diff changeset
636 @samp{ieee-be}\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
637 IEEE big endian format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
638 \n\
4082
b8bae1ba4651 [project @ 2002-10-01 18:10:05 by jwe]
jwe
parents: 4070
diff changeset
639 @samp{ieee-le}\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
640 IEEE little endian format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
641 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
642 @samp{vaxd}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
643 VAX D floating format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
644 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
645 @samp{vaxg}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
646 VAX G floating format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
647 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
648 @samp{cray}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
649 Cray floating format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
650 @end table\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
651 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
652 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
653 however, conversions are currently only supported for @samp{native}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
654 @samp{ieee-be}, and @samp{ieee-le} formats.\n\
7781
02a7fe6907d2 file-io.cc: added documentation
bill@denney.ws
parents: 7768
diff changeset
655 @seealso{fclose, fgets, fputs, fread, fseek, ferror, fprintf, fscanf, ftell, fwrite}\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
656 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
657 {
2599
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
658 octave_value_list retval;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
659
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
660 retval(0) = -1.0;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
661
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
662 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
663
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
664 if (nargin == 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
665 {
11146
69b2f237060e file-io.cc (Ffopen): argument parsing tweak
John W. Eaton <jwe@octave.org>
parents: 11081
diff changeset
666 if (nargout < 2 && args(0).is_string ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
667 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
668 // 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
669 // 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
670 // 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
671 // to supply more than one argument.
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
672
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
673 if (args(0).string_value () == "all")
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
674 return octave_stream_list::open_file_numbers ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
675 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
676 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
677 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
678 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
679
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
680 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
681 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
682 retval(2) = tmp(2);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
683 retval(1) = tmp(1);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
684 retval(0) = tmp(0);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
685 }
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
686
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
687 return retval;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
688 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
689 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
690
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
691 if (nargin > 0 && nargin < 4)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
692 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
693 octave_value mode = (nargin == 2 || nargin == 3)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
694 ? args(1) : octave_value ("r");
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
695
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
696 octave_value arch = (nargin == 3)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
697 ? args(2) : octave_value ("native");
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
698
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
699 int fid = -1;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
700
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
701 octave_stream os = do_stream_open (args(0), mode, arch, "fopen", fid);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
702
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
703 if (os && ! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
704 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
705 retval(1) = "";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
706 retval(0) = octave_stream_list::insert (os);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
707 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
708 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
709 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
710 int error_number = 0;
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
711
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
712 retval(1) = os.error (false, error_number);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
713 retval(0) = -1.0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
714 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
715 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
716 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
717 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
718
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
719 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
720 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
721
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
722 DEFUN (freport, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
723 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
724 @deftypefn {Built-in Function} {} freport ()\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
725 Print a list of which files have been opened, and whether they are open\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
726 for reading, writing, or both. For example:\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
727 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
728 @example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
729 @group\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
730 freport ()\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
731 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
732 @print{} number mode name\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
733 @print{} \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
734 @print{} 0 r stdin\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
735 @print{} 1 w stdout\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
736 @print{} 2 w stderr\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
737 @print{} 3 r myfile\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
738 @end group\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
739 @end example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
740 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
741 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
742 octave_value_list retval;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
743
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
744 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
745
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
746 if (nargin > 0)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
747 warning ("freport: ignoring extra arguments");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
748
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
749 octave_stdout << octave_stream_list::list_open_files ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
750
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
751 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
752 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
753
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
754 DEFUN (frewind, args, nargout,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
755 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
756 @deftypefn {Built-in Function} {} frewind (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
757 Move the file pointer to the beginning of the file @var{fid}, returning\n\
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
758 0 for success, and -1 if an error was encountered. It is equivalent to\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
759 @code{fseek (@var{fid}, 0, SEEK_SET)}.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
760 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
761 {
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
762 octave_value retval;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
763
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
764 int result = -1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
765
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
766 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
767
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
768 if (nargin == 1)
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
769 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
770 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
771
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
772 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
773 result = os.rewind ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
774 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
775 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
776 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
777
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
778 if (nargout > 0)
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
779 retval = result;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
780
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
781 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
782 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
783
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
784 DEFUN (fseek, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
785 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
786 @deftypefn {Built-in Function} {} fseek (@var{fid}, @var{offset}, @var{origin})\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
787 Set the file pointer to any location within the file @var{fid}.\n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
788 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
789 The pointer is positioned @var{offset} characters from the @var{origin},\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9039
diff changeset
790 which may be one of the predefined variables @w{@code{SEEK_CUR}} (current\n\
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9039
diff changeset
791 position), @w{@code{SEEK_SET}} (beginning), or @w{@code{SEEK_END}} (end of\n\
9039
51dc9691f23f Cleanup documentation files errors.texi, debug.texi, io.texi
Rik <rdrider0-list@yahoo.com>
parents: 8920
diff changeset
792 file) or strings \"cof\", \"bof\" or \"eof\". If @var{origin} is omitted,\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9039
diff changeset
793 @w{@code{SEEK_SET}} is assumed. The offset must be zero, or a value returned\n\
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9039
diff changeset
794 by @code{ftell} (in which case @var{origin} must be @w{@code{SEEK_SET}}).\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
795 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
796 Return 0 on success and -1 on error.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
797 @seealso{ftell, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
798 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
799 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
800 octave_value retval = -1;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
801
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
802 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
803
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
804 if (nargin == 2 || nargin == 3)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
805 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
806 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
807
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
808 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
809 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
810 octave_value origin_arg = (nargin == 3)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
811 ? args(2) : octave_value (-1.0);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
812
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
813 retval = os.seek (args(1), origin_arg);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
814 }
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
815 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
816 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
817 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
818
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
819 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
820 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
821
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
822 DEFUN (ftell, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
823 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
824 @deftypefn {Built-in Function} {} ftell (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
825 Return the position of the file pointer as the number of characters\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
826 from the beginning of the file @var{fid}.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
827 @seealso{fseek, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
828 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
829 {
4797
19b8225bdaa2 [project @ 2004-02-23 22:10:31 by jwe]
jwe
parents: 4726
diff changeset
830 octave_value retval = -1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
831
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
832 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
833
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
834 if (nargin == 1)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
835 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
836 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
837
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
838 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
839 retval = os.tell ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
840 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
841 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
842 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
843
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
844 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
845 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
846
3737
b736f8b8f0a1 [project @ 2000-11-16 18:01:08 by jwe]
jwe
parents: 3569
diff changeset
847 DEFUN (fprintf, args, nargout,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
848 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
849 @deftypefn {Built-in Function} {} fprintf (@var{fid}, @var{template}, @dots{})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
850 This function is just like @code{printf}, except that the output is\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
851 written to the stream @var{fid} instead of @code{stdout}.\n\
8606
0611b48a2b61 file-io.cc (Ffprintf): doc fix
John W. Eaton <jwe@octave.org>
parents: 8377
diff changeset
852 If @var{fid} is omitted, the output is written to @code{stdout}.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
853 @seealso{printf, sprintf, fread, fscanf, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
854 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
855 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
856 static std::string who = "fprintf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
857
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
858 octave_value retval;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
859
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
860 int result = -1;
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
861
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
862 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
863
2875
2e45e7a3d45e [project @ 1997-04-24 08:56:20 by jwe]
jwe
parents: 2873
diff changeset
864 if (nargin > 1 || (nargin > 0 && args(0).is_string ()))
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
865 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
866 octave_stream os;
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
867 int fmt_n = 0;
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
868
3737
b736f8b8f0a1 [project @ 2000-11-16 18:01:08 by jwe]
jwe
parents: 3569
diff changeset
869 if (args(0).is_string ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
870 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
871 os = octave_stream_list::lookup (1, who);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
872 }
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
873 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
874 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
875 fmt_n = 1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
876 os = octave_stream_list::lookup (args(0), who);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
877 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
878
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
879 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
880 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
881 if (args(fmt_n).is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
882 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
883 octave_value_list tmp_args;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
884
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
885 if (nargin > 1 + fmt_n)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
886 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
887 tmp_args.resize (nargin-fmt_n-1, octave_value ());
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
888
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
889 for (int i = fmt_n + 1; i < nargin; i++)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
890 tmp_args(i-fmt_n-1) = args(i);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
891 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
892
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
893 result = os.printf (args(fmt_n), tmp_args, who);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
894 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
895 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
896 ::error ("%s: format must be a string", who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
897 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
898 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
899 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
900 print_usage ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
901
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
902 if (nargout > 0)
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
903 retval = result;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
904
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
905 return retval;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
906 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
907
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
908 DEFUN (printf, args, nargout,
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
909 "-*- texinfo -*-\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
910 @deftypefn {Built-in Function} {} printf (@var{template}, @dots{})\n\
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
911 Print optional arguments under the control of the template string\n\
5653
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
912 @var{template} to the stream @code{stdout} and return the number of\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
913 characters printed.\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
914 @ifclear OCTAVE_MANUAL\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
915 \n\
5653
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
916 See the Formatted Output section of the GNU Octave manual for a\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
917 complete description of the syntax of the template string.\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
918 @end ifclear\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
919 @seealso{fprintf, sprintf, scanf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
920 @end deftypefn")
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
921 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
922 static std::string who = "printf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
923
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
924 octave_value retval;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
925
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
926 int result = -1;
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
927
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
928 int nargin = args.length ();
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
929
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
930 if (nargin > 0)
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
931 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
932 if (args(0).is_string ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
933 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
934 octave_value_list tmp_args;
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
935
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
936 if (nargin > 1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
937 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
938 tmp_args.resize (nargin-1, octave_value ());
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
939
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
940 for (int i = 1; i < nargin; i++)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
941 tmp_args(i-1) = args(i);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
942 }
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
943
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
944 result = stdout_stream.printf (args(0), tmp_args, who);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
945 }
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
946 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
947 ::error ("%s: format must be a string", who.c_str ());
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
948 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
949 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
950 print_usage ();
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
951
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
952 if (nargout > 0)
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
953 retval = result;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
954
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
955 return retval;
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
956 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
957
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
958 DEFUN (fputs, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
959 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
960 @deftypefn {Built-in Function} {} fputs (@var{fid}, @var{string})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
961 Write a string to a file with no formatting.\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
962 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
963 Return a non-negative number on success and EOF on error.\n\
7781
02a7fe6907d2 file-io.cc: added documentation
bill@denney.ws
parents: 7768
diff changeset
964 @seealso{scanf, sscanf, fread, fprintf, fgets, fscanf}\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
965 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
966 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
967 static std::string who = "fputs";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
968
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
969 octave_value retval = -1;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
970
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
971 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
972
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
973 if (nargin == 2)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
974 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
975 octave_stream os = octave_stream_list::lookup (args(0), who);
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
976
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
977 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
978 retval = os.puts (args(1), who);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
979 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
980 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
981 print_usage ();
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
982
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
983 return retval;
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
984 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
985
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
986 DEFUN (puts, args, ,
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
987 "-*- texinfo -*-\n\
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
988 @deftypefn {Built-in Function} {} puts (@var{string})\n\
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
989 Write a string to the standard output with no formatting.\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
990 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
991 Return a non-negative number on success and EOF on error.\n\
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
992 @end deftypefn")
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
993 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
994 static std::string who = "puts";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
995
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
996 octave_value retval = -1;
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
997
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
998 if (args.length () == 1)
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
999 retval = stdout_stream.puts (args(0), who);
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1000 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1001 print_usage ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1002
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1003 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1004 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1005
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1006 DEFUN (sprintf, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1007 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1008 @deftypefn {Built-in Function} {} sprintf (@var{template}, @dots{})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1009 This is like @code{printf}, except that the output is returned as a\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1010 string. Unlike the C library function, which requires you to provide a\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1011 suitably sized string as an argument, Octave's @code{sprintf} function\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1012 returns the string, automatically sized to hold all of the items\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1013 converted.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1014 @seealso{printf, fprintf, sscanf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1015 @end deftypefn")
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1016 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1017 static std::string who = "sprintf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1018
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1019 octave_value_list retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1020
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1021 int nargin = args.length ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1022
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1023 if (nargin > 0)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1024 {
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1025 retval(2) = -1.0;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1026 retval(1) = "unknown error";
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1027 retval(0) = "";
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1028
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1029 octave_ostrstream *ostr = new octave_ostrstream ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1030
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1031 octave_stream os (ostr);
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1032
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1033 if (os.is_valid ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1034 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1035 octave_value fmt_arg = args(0);
6007
52b520087c50 [project @ 2006-09-27 15:05:53 by jwe]
jwe
parents: 5906
diff changeset
1036
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1037 if (fmt_arg.is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1038 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1039 octave_value_list tmp_args;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1040
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1041 if (nargin > 1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1042 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1043 tmp_args.resize (nargin-1, octave_value ());
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1044
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1045 for (int i = 1; i < nargin; i++)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1046 tmp_args(i-1) = args(i);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1047 }
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1048
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1049 retval(2) = os.printf (fmt_arg, tmp_args, who);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1050 retval(1) = os.error ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1051 retval(0) = octave_value (ostr->str (),
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1052 fmt_arg.is_sq_string () ? '\'' : '"');
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1053 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1054 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1055 ::error ("%s: format must be a string", who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1056 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1057 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1058 ::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
1059 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1060 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1061 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1062
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1063 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1064 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1065
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1066 DEFUN (fscanf, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1067 "-*- texinfo -*-\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
1068 @deftypefn {Built-in Function} {[@var{val}, @var{count}] =} fscanf (@var{fid}, @var{template}, @var{size})\n\
7650
eb7bdde776f2 Texinfo fixes
John W. Eaton <jwe@octave.org>
parents: 7336
diff changeset
1069 @deftypefnx {Built-in Function} {[@var{v1}, @var{v2}, @dots{}, @var{count}] =} fscanf (@var{fid}, @var{template}, \"C\")\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1070 In the first form, read from @var{fid} according to @var{template},\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1071 returning the result in the matrix @var{val}.\n\
2122
91d802f77456 [project @ 1996-05-12 07:08:38 by jwe]
jwe
parents: 2116
diff changeset
1072 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1073 The optional argument @var{size} specifies the amount of data to read\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1074 and may be one of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1075 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1076 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1077 @item Inf\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1078 Read as much as possible, returning a column vector.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1079 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1080 @item @var{nr}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1081 Read up to @var{nr} elements, returning a column vector.\n\
2122
91d802f77456 [project @ 1996-05-12 07:08:38 by jwe]
jwe
parents: 2116
diff changeset
1082 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1083 @item [@var{nr}, Inf]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1084 Read as much as possible, returning a matrix with @var{nr} rows. If the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1085 number of elements read is not an exact multiple of @var{nr}, the last\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1086 column is padded with zeros.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1087 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1088 @item [@var{nr}, @var{nc}]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1089 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1090 @var{nr} rows. If the number of elements read is not an exact multiple\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1091 of @var{nr}, the last column is padded with zeros.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1092 @end table\n\
2122
91d802f77456 [project @ 1996-05-12 07:08:38 by jwe]
jwe
parents: 2116
diff changeset
1093 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1094 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1095 If @var{size} is omitted, a value of @code{Inf} is assumed.\n\
2122
91d802f77456 [project @ 1996-05-12 07:08:38 by jwe]
jwe
parents: 2116
diff changeset
1096 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1097 A string is returned if @var{template} specifies only character\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1098 conversions.\n\
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1099 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1100 The number of items successfully read is returned in @var{count}.\n\
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1101 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1102 In the second form, read from @var{fid} according to @var{template},\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1103 with each conversion specifier in @var{template} corresponding to a\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1104 single scalar return value. This form is more `C-like', and also\n\
3491
2c7524ffdbf5 [project @ 2000-01-28 22:44:13 by jwe]
jwe
parents: 3458
diff changeset
1105 compatible with previous versions of Octave. The number of successful\n\
2c7524ffdbf5 [project @ 2000-01-28 22:44:13 by jwe]
jwe
parents: 3458
diff changeset
1106 conversions is returned in @var{count}\n\
5653
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1107 @ifclear OCTAVE_MANUAL\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1108 \n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1109 See the Formatted Input section of the GNU Octave manual for a\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1110 complete description of the syntax of the template string.\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1111 @end ifclear\n\
7781
02a7fe6907d2 file-io.cc: added documentation
bill@denney.ws
parents: 7768
diff changeset
1112 @seealso{scanf, sscanf, fread, fprintf, fgets, fputs}\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1113 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1114 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1115 static std::string who = "fscanf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1116
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1117 octave_value_list retval;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1118
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1119 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1120
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1121 if (nargin == 3 && args(2).is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1122 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1123 octave_stream os = octave_stream_list::lookup (args(0), who);
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1124
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1125 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1126 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1127 if (args(1).is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1128 retval = os.oscanf (args(1), who);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1129 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1130 ::error ("%s: format must be a string", who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1131 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1132 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1133 else
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1134 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1135 retval (1) = 0.0;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1136 retval (0) = Matrix ();
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1137
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1138 if (nargin == 2 || nargin == 3)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1139 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1140 octave_stream os = octave_stream_list::lookup (args(0), who);
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1141
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1142 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1143 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1144 if (args(1).is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1145 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1146 octave_idx_type count = 0;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1147
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1148 Array<double> size = (nargin == 3)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1149 ? args(2).vector_value ()
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1150 : Array<double> (dim_vector (1, 1), lo_ieee_inf_value ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1151
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1152 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1153 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1154 octave_value tmp = os.scanf (args(1), size, count, who);
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1155
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1156 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1157 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1158 retval(1) = count;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1159 retval(0) = tmp;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1160 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1161 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1162 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1163 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1164 ::error ("%s: format must be a string", who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1165 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1166 }
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1167 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1168 print_usage ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1169 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1170
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1171 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1172 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1173
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1174 DEFUN (sscanf, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1175 "-*- texinfo -*-\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
1176 @deftypefn {Built-in Function} {[@var{val}, @var{count}] =} sscanf (@var{string}, @var{template}, @var{size})\n\
7650
eb7bdde776f2 Texinfo fixes
John W. Eaton <jwe@octave.org>
parents: 7336
diff changeset
1177 @deftypefnx {Built-in Function} {[@var{v1}, @var{v2}, @dots{}, @var{count}] =} sscanf (@var{string}, @var{template}, \"C\")\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1178 This is like @code{fscanf}, except that the characters are taken from the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1179 string @var{string} instead of from a stream. Reaching the end of the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1180 string is treated as an end-of-file condition.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1181 @seealso{fscanf, scanf, sprintf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1182 @end deftypefn")
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1183 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1184 static std::string who = "sscanf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1185
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1186 octave_value_list retval;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1187
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1188 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1189
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1190 if (nargin == 3 && args(2).is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1191 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1192 if (args(0).is_string ())
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1193 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1194 std::string data = args(0).string_value ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1195
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1196 octave_stream os = octave_istrstream::create (data);
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1197
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1198 if (os.is_valid ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1199 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1200 if (args(1).is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1201 retval = os.oscanf (args(1), who);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1202 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1203 ::error ("%s: format must be a string", who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1204 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1205 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1206 ::error ("%s: unable to create temporary input buffer",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1207 who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1208 }
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1209 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1210 ::error ("%s: first argument must be a string", who.c_str ());
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1211 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1212 else
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1213 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1214 if (nargin == 2 || nargin == 3)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1215 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1216 retval(3) = -1.0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1217 retval(2) = "unknown error";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1218 retval(1) = 0.0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1219 retval(0) = Matrix ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1220
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1221 if (args(0).is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1222 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1223 std::string data = args(0).string_value ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1224
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1225 octave_stream os = octave_istrstream::create (data);
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1226
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1227 if (os.is_valid ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1228 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1229 if (args(1).is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1230 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1231 octave_idx_type count = 0;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1232
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1233 Array<double> size = (nargin == 3)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1234 ? args(2).vector_value ()
11570
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1235 : Array<double> (dim_vector (1, 1),
57632dea2446 attempt better backward compatibility for Array constructors
John W. Eaton <jwe@octave.org>
parents: 11523
diff changeset
1236 lo_ieee_inf_value ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1237
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1238 octave_value tmp = os.scanf (args(1), size, count, who);
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1239
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1240 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1241 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1242 // FIXME -- is this the right thing to do?
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1243 // Extract error message first, because getting
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1244 // position will clear it.
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1245 std::string errmsg = os.error ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1246
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1247 retval(3) = os.tell () + 1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1248 retval(2) = errmsg;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1249 retval(1) = count;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1250 retval(0) = tmp;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1251 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1252 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1253 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1254 ::error ("%s: format must be a string", who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1255 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1256 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1257 ::error ("%s: unable to create temporary input buffer",
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1258 who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1259 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1260 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1261 ::error ("%s: first argument must be a string", who.c_str ());
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1262 }
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1263 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1264 print_usage ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1265 }
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1266
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1267 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1268 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1269
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1270 DEFUN (scanf, args, nargout,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1271 "-*- texinfo -*-\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
1272 @deftypefn {Built-in Function} {[@var{val}, @var{count}] =} scanf (@var{template}, @var{size})\n\
7650
eb7bdde776f2 Texinfo fixes
John W. Eaton <jwe@octave.org>
parents: 7336
diff changeset
1273 @deftypefnx {Built-in Function} {[@var{v1}, @var{v2}, @dots{}, @var{count}]] =} scanf (@var{template}, \"C\")\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1274 This is equivalent to calling @code{fscanf} with @var{fid} = @code{stdin}.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1275 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1276 It is currently not useful to call @code{scanf} in interactive\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1277 programs.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1278 @seealso{fscanf, sscanf, printf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1279 @end deftypefn")
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1280 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1281 int nargin = args.length ();
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1282
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1283 octave_value_list tmp_args (nargin+1, octave_value ());
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1284
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1285 tmp_args (0) = 0.0;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1286 for (int i = 0; i < nargin; i++)
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1287 tmp_args (i+1) = args (i);
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1288
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1289 return Ffscanf (tmp_args, nargout);
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1290 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1291
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1292 static octave_value
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1293 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
1294 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
1295 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
1296 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1297 octave_value retval;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1298
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1299 count = -1;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1300
3810
f19f00339363 [project @ 2001-03-29 21:03:01 by jwe]
jwe
parents: 3775
diff changeset
1301 Array<double> size = size_arg.vector_value ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1302
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1303 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1304 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1305 std::string prec = prec_arg.string_value ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1306
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1307 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1308 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1309 int block_size = 1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1310 oct_data_conv::data_type input_type;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1311 oct_data_conv::data_type output_type;
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1312
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1313 oct_data_conv::string_to_data_type (prec, block_size,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1314 input_type, output_type);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1315
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1316 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1317 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1318 int skip = skip_arg.int_value (true);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1319
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1320 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1321 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1322 std::string arch = arch_arg.string_value ();
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1323
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1324 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1325 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1326 oct_mach_info::float_format flt_fmt
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1327 = oct_mach_info::string_to_float_format (arch);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1328
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1329 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1330 retval = os.read (size, block_size, input_type,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1331 output_type, skip, flt_fmt, count);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1332 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1333 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1334 ::error ("fread: architecture type must be a string");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1335 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1336 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1337 ::error ("fread: skip must be an integer");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1338 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1339 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1340 ::error ("fread: invalid data type specified");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1341 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1342 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1343 ::error ("fread: precision must be a string");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1344 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1345 else
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1346 ::error ("fread: invalid size specified");
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1347
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1348 return retval;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1349 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1350
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1351 DEFUN (fread, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1352 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1353 @deftypefn {Built-in Function} {[@var{val}, @var{count}] =} fread (@var{fid}, @var{size}, @var{precision}, @var{skip}, @var{arch})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1354 Read binary data of type @var{precision} from the specified file ID\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1355 @var{fid}.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1356 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1357 The optional argument @var{size} specifies the amount of data to read\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1358 and may be one of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1359 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1360 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1361 @item Inf\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1362 Read as much as possible, returning a column vector.\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1363 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1364 @item @var{nr}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1365 Read up to @var{nr} elements, returning a column vector.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1366 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1367 @item [@var{nr}, Inf]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1368 Read as much as possible, returning a matrix with @var{nr} rows. If the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1369 number of elements read is not an exact multiple of @var{nr}, the last\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1370 column is padded with zeros.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1371 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1372 @item [@var{nr}, @var{nc}]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1373 Read up to @code{@var{nr} * @var{nc}} elements, returning a matrix with\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1374 @var{nr} rows. If the number of elements read is not an exact multiple\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1375 of @var{nr}, the last column is padded with zeros.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1376 @end table\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1377 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1378 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1379 If @var{size} is omitted, a value of @code{Inf} is assumed.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1380 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1381 The optional argument @var{precision} is a string specifying the type of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1382 data to read and may be one of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1383 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1384 @table @code\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1385 @item \"schar\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1386 @itemx \"signed char\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1387 Signed character.\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1388 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1389 @item \"uchar\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1390 @itemx \"unsigned char\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1391 Unsigned character.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1392 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1393 @item \"int8\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1394 @itemx \"integer*1\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1395 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1396 8-bit signed integer.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1397 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1398 @item \"int16\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1399 @itemx \"integer*2\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1400 16-bit signed integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1401 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1402 @item \"int32\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1403 @itemx \"integer*4\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1404 32-bit signed integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1405 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1406 @item \"int64\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1407 @itemx \"integer*8\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1408 64-bit signed integer.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1409 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1410 @item \"uint8\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1411 8-bit unsigned integer.\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1412 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1413 @item \"uint16\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1414 16-bit unsigned integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1415 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1416 @item \"uint32\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1417 32-bit unsigned integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1418 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1419 @item \"uint64\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1420 64-bit unsigned integer.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1421 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1422 @item \"single\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1423 @itemx \"float32\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1424 @itemx \"real*4\"\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1425 32-bit floating point number.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1426 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1427 @item \"double\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1428 @itemx \"float64\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1429 @itemx \"real*8\"\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1430 64-bit floating point number.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1431 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1432 @item \"char\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1433 @itemx \"char*1\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1434 Single character.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1435 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1436 @item \"short\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1437 Short integer (size is platform dependent).\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1438 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1439 @item \"int\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1440 Integer (size is platform dependent).\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1441 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1442 @item \"long\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1443 Long integer (size is platform dependent).\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1444 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1445 @item \"ushort\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1446 @itemx \"unsigned short\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1447 Unsigned short integer (size is platform dependent).\n\
4610
02d2fcf835fc [project @ 2003-11-14 17:08:59 by jwe]
jwe
parents: 4594
diff changeset
1448 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1449 @item \"uint\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1450 @itemx \"unsigned int\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1451 Unsigned integer (size is platform dependent).\n\
4610
02d2fcf835fc [project @ 2003-11-14 17:08:59 by jwe]
jwe
parents: 4594
diff changeset
1452 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1453 @item \"ulong\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1454 @itemx \"unsigned long\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1455 Unsigned long integer (size is platform dependent).\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1456 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1457 @item \"float\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1458 Single precision floating point number (size is platform dependent).\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1459 @end table\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1460 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1461 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1462 The default precision is @code{\"uchar\"}.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1463 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1464 The @var{precision} argument may also specify an optional repeat\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1465 count. For example, @samp{32*single} causes @code{fread} to read\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1466 a block of 32 single precision floating point numbers. Reading in\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1467 blocks is useful in combination with the @var{skip} argument.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1468 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1469 The @var{precision} argument may also specify a type conversion.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1470 For example, @samp{int16=>int32} causes @code{fread} to read 16-bit\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1471 integer values and return an array of 32-bit integer values. By\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1472 default, @code{fread} returns a double precision array. The special\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1473 form @samp{*TYPE} is shorthand for @samp{TYPE=>TYPE}.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1474 \n\
7096
81bed50b9feb [project @ 2007-11-02 16:13:43 by jwe]
jwe
parents: 7078
diff changeset
1475 The conversion and repeat counts may be combined. For example, the\n\
81bed50b9feb [project @ 2007-11-02 16:13:43 by jwe]
jwe
parents: 7078
diff changeset
1476 specification @samp{32*single=>single} causes @code{fread} to read\n\
81bed50b9feb [project @ 2007-11-02 16:13:43 by jwe]
jwe
parents: 7078
diff changeset
1477 blocks of single precision floating point values and return an array\n\
81bed50b9feb [project @ 2007-11-02 16:13:43 by jwe]
jwe
parents: 7078
diff changeset
1478 of single precision values instead of the default array of double\n\
81bed50b9feb [project @ 2007-11-02 16:13:43 by jwe]
jwe
parents: 7078
diff changeset
1479 precision values.\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1480 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1481 The optional argument @var{skip} specifies the number of bytes to skip\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1482 after each element (or block of elements) is read. If it is not\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1483 specified, a value of 0 is assumed. If the final block read is not\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1484 complete, the final skip is omitted. For example,\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1485 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1486 @example\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1487 fread (f, 10, \"3*single=>single\", 8)\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1488 @end example\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1489 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1490 @noindent\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1491 will omit the final 8-byte skip because the last read will not be\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1492 a complete block of 3 values.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1493 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1494 The optional argument @var{arch} is a string specifying the data format\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1495 for the file. Valid values are\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1496 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1497 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1498 @item \"native\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1499 The format of the current machine.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1500 \n\
4546
a4796ccde726 [project @ 2003-10-24 18:58:22 by jwe]
jwe
parents: 4537
diff changeset
1501 @item \"ieee-be\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1502 IEEE big endian.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1503 \n\
4546
a4796ccde726 [project @ 2003-10-24 18:58:22 by jwe]
jwe
parents: 4537
diff changeset
1504 @item \"ieee-le\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1505 IEEE little endian.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1506 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1507 @item \"vaxd\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1508 VAX D floating format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1509 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1510 @item \"vaxg\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1511 VAX G floating format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1512 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1513 @item \"cray\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1514 Cray floating format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1515 @end table\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1516 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1517 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1518 Conversions are currently only supported for @code{\"ieee-be\"} and\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1519 @code{\"ieee-le\"} formats.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1520 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1521 The data read from the file is returned in @var{val}, and the number of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1522 values read is returned in @code{count}\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1523 @seealso{fwrite, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1524 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1525 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1526 octave_value_list retval;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1527
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1528 int nargin = args.length ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1529
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1530 if (nargin > 0 && nargin < 6)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1531 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1532 retval(1) = -1.0;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1533 retval(0) = Matrix ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1534
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1535 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
1536
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1537 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1538 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1539 octave_value size = lo_ieee_inf_value ();
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1540 octave_value prec = "uchar";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1541 octave_value skip = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1542 octave_value arch = "unknown";
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1543
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1544 int idx = 1;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1545
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1546 if (nargin > idx && ! args(idx).is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1547 size = args(idx++);
4257
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1548
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1549 if (nargin > idx)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1550 prec = args(idx++);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1551
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1552 if (nargin > idx)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1553 skip = args(idx++);
4257
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1554
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1555 if (nargin > idx)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1556 arch = args(idx++);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1557 else if (skip.is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1558 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1559 arch = skip;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1560 skip = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1561 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1562
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1563 octave_idx_type count = -1;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1564
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1565 octave_value tmp = do_fread (os, size, prec, skip, arch, count);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1566
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1567 retval(1) = count;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1568 retval(0) = tmp;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1569 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1570 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1571 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1572 print_usage ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1573
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1574 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1575 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1576
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1577 static int
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1578 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
1579 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
1580 const octave_value& arch_arg)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1581 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1582 int retval = -1;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1583
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1584 std::string prec = prec_arg.string_value ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1585
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1586 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1587 {
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1588 int block_size = 1;
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1589 oct_data_conv::data_type output_type;
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1590
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1591 oct_data_conv::string_to_data_type (prec, block_size, output_type);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1592
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1593 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1594 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1595 int skip = skip_arg.int_value (true);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1596
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1597 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1598 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1599 std::string arch = arch_arg.string_value ();
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1600
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1601 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1602 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1603 oct_mach_info::float_format flt_fmt
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1604 = oct_mach_info::string_to_float_format (arch);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1605
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1606 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1607 retval = os.write (data, block_size, output_type,
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1608 skip, flt_fmt);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1609 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1610 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1611 ::error ("fwrite: architecture type must be a string");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1612 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1613 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1614 ::error ("fwrite: skip must be an integer");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1615 }
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1616 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1617 ::error ("fwrite: invalid precision specified");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1618 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1619 else
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1620 ::error ("fwrite: precision must be a string");
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1621
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1622 return retval;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1623 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1624
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1625 DEFUN (fwrite, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1626 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1627 @deftypefn {Built-in Function} {@var{count} =} fwrite (@var{fid}, @var{data}, @var{precision}, @var{skip}, @var{arch})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1628 Write data in binary form of type @var{precision} to the specified file\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1629 ID @var{fid}, returning the number of values successfully written to the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1630 file.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1631 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1632 The argument @var{data} is a matrix of values that are to be written to\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1633 the file. The values are extracted in column-major order.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1634 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1635 The remaining arguments @var{precision}, @var{skip}, and @var{arch} are\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1636 optional, and are interpreted as described for @code{fread}.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1637 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1638 The behavior of @code{fwrite} is undefined if the values in @var{data}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1639 are too large to fit in the specified precision.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1640 @seealso{fread, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1641 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1642 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1643 octave_value retval = -1;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1644
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1645 int nargin = args.length ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1646
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1647 if (nargin > 1 && nargin < 6)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1648 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1649 octave_stream os = octave_stream_list::lookup (args(0), "fwrite");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1650
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1651 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1652 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1653 octave_value prec = "uchar";
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1654 octave_value skip = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1655 octave_value arch = "unknown";
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1656
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1657 int idx = 1;
7708
b42abee70a98 fread, fwrite: allow SKIP arg to be omitted
John W. Eaton <jwe@octave.org>
parents: 7650
diff changeset
1658
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1659 octave_value data = args(idx++);
7708
b42abee70a98 fread, fwrite: allow SKIP arg to be omitted
John W. Eaton <jwe@octave.org>
parents: 7650
diff changeset
1660
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1661 if (nargin > idx)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1662 prec = args(idx++);
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1663
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1664 if (nargin > idx)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1665 skip = args(idx++);
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1666
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1667 if (nargin > idx)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1668 arch = args(idx++);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1669 else if (skip.is_string ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1670 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1671 arch = skip;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1672 skip = 0;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1673 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1674
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1675 double status = do_fwrite (os, data, prec, skip, arch);
2825
60ae49e1284f [project @ 1997-03-25 23:17:36 by jwe]
jwe
parents: 2802
diff changeset
1676
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1677 retval = status;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1678 }
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1679 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1680 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1681 print_usage ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1682
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1683 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1684 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1685
5906
bdf16e1564e1 [project @ 2006-07-27 03:07:14 by jwe]
jwe
parents: 5823
diff changeset
1686 DEFUNX ("feof", Ffeof, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1687 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1688 @deftypefn {Built-in Function} {} feof (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1689 Return 1 if an end-of-file condition has been encountered for a given\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1690 file and 0 otherwise. Note that it will only return 1 if the end of the\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1691 file has already been encountered, not if the next read operation will\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1692 result in an end-of-file condition.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1693 @seealso{fread, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1694 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1695 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1696 octave_value retval = -1;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1697
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1698 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1699
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1700 if (nargin == 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1701 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1702 octave_stream os = octave_stream_list::lookup (args(0), "feof");
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1703
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1704 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1705 retval = os.eof () ? 1.0 : 0.0;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1706 }
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1707 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1708 print_usage ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1709
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1710 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1711 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1712
5906
bdf16e1564e1 [project @ 2006-07-27 03:07:14 by jwe]
jwe
parents: 5823
diff changeset
1713 DEFUNX ("ferror", Fferror, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1714 "-*- texinfo -*-\n\
9797
f569f46a1c34 update ferror doc string, take 2
John W. Eaton <jwe@octave.org>
parents: 9796
diff changeset
1715 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} ferror (@var{fid}, \"clear\")\n\
f569f46a1c34 update ferror doc string, take 2
John W. Eaton <jwe@octave.org>
parents: 9796
diff changeset
1716 Return 1 if an error condition has been encountered for the file ID\n\
f569f46a1c34 update ferror doc string, take 2
John W. Eaton <jwe@octave.org>
parents: 9796
diff changeset
1717 @var{fid} and 0 otherwise. Note that it will only return 1 if an error\n\
f569f46a1c34 update ferror doc string, take 2
John W. Eaton <jwe@octave.org>
parents: 9796
diff changeset
1718 has already been encountered, not if the next operation will result in\n\
f569f46a1c34 update ferror doc string, take 2
John W. Eaton <jwe@octave.org>
parents: 9796
diff changeset
1719 an error condition.\n\
f569f46a1c34 update ferror doc string, take 2
John W. Eaton <jwe@octave.org>
parents: 9796
diff changeset
1720 \n\
f569f46a1c34 update ferror doc string, take 2
John W. Eaton <jwe@octave.org>
parents: 9796
diff changeset
1721 The second argument is optional. If it is supplied, also clear the\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1722 error condition.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1723 @end deftypefn")
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1724 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1725 octave_value_list retval;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1726
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1727 int nargin = args.length ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1728
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1729 if (nargin == 1 || nargin == 2)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1730 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1731 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
1732
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1733 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1734 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1735 bool clear = false;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1736
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1737 if (nargin == 2)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1738 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1739 std::string opt = args(1).string_value ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1740
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1741 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1742 clear = (opt == "clear");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1743 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1744 return retval;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1745 }
1755
3a9462b655f1 [project @ 1996-01-22 04:47:22 by jwe]
jwe
parents: 1750
diff changeset
1746
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1747 int error_number = 0;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1748
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1749 std::string error_message = os.error (clear, error_number);
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1750
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1751 retval(1) = error_number;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1752 retval(0) = error_message;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1753 }
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1754 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1755 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1756 print_usage ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1757
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1758 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1759 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1760
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
1761 DEFUN (popen, args, ,
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1762 "-*- texinfo -*-\n\
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1763 @deftypefn {Built-in Function} {@var{fid} =} popen (@var{command}, @var{mode})\n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1764 Start a process and create a pipe. The name of the command to run is\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1765 given by @var{command}. The file identifier corresponding to the input\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1766 or output stream of the process is returned in @var{fid}. The argument\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1767 @var{mode} may be\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1768 \n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1769 @table @code\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1770 @item \"r\"\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1771 The pipe will be connected to the standard output of the process, and\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1772 open for reading.\n\
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1773 \n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1774 @item \"w\"\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1775 The pipe will be connected to the standard input of the process, and\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1776 open for writing.\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1777 @end table\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1778 \n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
1779 For example:\n\
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1780 \n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1781 @example\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1782 @group\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1783 fid = popen (\"ls -ltr / | tail -3\", \"r\");\n\
7768
a2d9f325b65a Use isschar instead of deprecated isstr
Rafael Laboissiere <rafael@debian.org>
parents: 7730
diff changeset
1784 while (ischar (s = fgets (fid)))\n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1785 fputs (stdout, s);\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1786 endwhile\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1787 @print{} drwxr-xr-x 33 root root 3072 Feb 15 13:28 etc\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1788 @print{} drwxr-xr-x 3 root root 1024 Feb 15 13:28 lib\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1789 @print{} drwxrwxrwt 15 root root 2048 Feb 17 14:53 tmp\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1790 @end group\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1791 @end example\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1792 @end deftypefn")
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1793 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1794 octave_value retval = -1;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1795
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1796 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1797
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1798 if (nargin == 2)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1799 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1800 std::string name = args(0).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1801
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1802 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1803 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1804 std::string mode = args(1).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1805
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1806 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1807 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1808 if (mode == "r")
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1809 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1810 octave_stream ips = octave_iprocstream::create (name);
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1811
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1812 retval = octave_stream_list::insert (ips);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1813 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1814 else if (mode == "w")
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1815 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1816 octave_stream ops = octave_oprocstream::create (name);
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1817
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1818 retval = octave_stream_list::insert (ops);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1819 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1820 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1821 ::error ("popen: invalid mode specified");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1822 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1823 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1824 ::error ("popen: mode must be a string");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1825 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1826 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1827 ::error ("popen: name must be a string");
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1828 }
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1829 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1830 print_usage ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1831
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1832 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1833 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1834
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
1835 DEFUN (pclose, args, ,
3381
69b167451491 [project @ 1999-12-15 20:48:10 by jwe]
jwe
parents: 3372
diff changeset
1836 "-*- texinfo -*-\n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1837 @deftypefn {Built-in Function} {} pclose (@var{fid})\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1838 Close a file identifier that was opened by @code{popen}. You may also\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1839 use @code{fclose} for the same purpose.\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1840 @end deftypefn")
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1841 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1842 octave_value retval = -1;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1843
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1844 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1845
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1846 if (nargin == 1)
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1847 retval = octave_stream_list::remove (args(0), "pclose");
1377
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
1848 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1849 print_usage ();
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1850
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1851 return retval;
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1852 }
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1853
10197
4d433bd2d4dc attempt to avoid trouble with gnulib #defines in a consistent way
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
1854 DEFUNX ("tmpnam", Ftmpnam, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1855 "-*- texinfo -*-\n\
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1856 @deftypefn {Built-in Function} {} tmpnam (@var{dir}, @var{prefix})\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1857 Return a unique temporary file name as a string.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1858 \n\
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1859 If @var{prefix} is omitted, a value of @code{\"oct-\"} is used.\n\
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1860 If @var{dir} is also omitted, the default directory for temporary files\n\
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1861 is used. If @var{dir} is provided, it must exist, otherwise the default\n\
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1862 directory for temporary files is used. Since the named file is not\n\
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1863 opened, by @code{tmpnam}, it is possible (though relatively unlikely)\n\
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1864 that it will not be available by the time your program attempts to open it.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1865 @seealso{tmpfile, mkstemp, P_tmpdir}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1866 @end deftypefn")
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1867 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1868 octave_value retval;
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1869
2936
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1870 int len = args.length ();
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1871
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1872 if (len < 3)
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1873 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1874 std::string dir = len > 0 ? args(0).string_value () : std::string ();
2936
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1875
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1876 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1877 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1878 std::string pfx
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1879 = len > 1 ? args(1).string_value () : std::string ("oct-");
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1880
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1881 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1882 retval = octave_tempnam (dir, pfx);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1883 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1884 ::error ("expecting second argument to be a string");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1885 }
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1886 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1887 ::error ("expecting first argument to be a string");
2936
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1888 }
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1889 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1890 print_usage ();
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1891
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1892 return retval;
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1893 }
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1894
2458
d07a5d0b57e2 [project @ 1996-11-03 03:25:18 by jwe]
jwe
parents: 2442
diff changeset
1895 DEFALIAS (octave_tmp_file_name, tmpnam);
d07a5d0b57e2 [project @ 1996-11-03 03:25:18 by jwe]
jwe
parents: 2442
diff changeset
1896
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1897 DEFUN (tmpfile, args, ,
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1898 "-*- texinfo -*-\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1899 @deftypefn {Built-in Function} {[@var{fid}, @var{msg}] =} tmpfile ()\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1900 Return the file ID corresponding to a new temporary file with a unique\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1901 name. The file is opened in binary read/write (@code{\"w+b\"}) mode.\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1902 The file will be deleted automatically when it is closed or when Octave\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1903 exits.\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1904 \n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1905 If successful, @var{fid} is a valid file ID and @var{msg} is an empty\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1906 string. Otherwise, @var{fid} is -1 and @var{msg} contains a\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1907 system-dependent error message.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1908 @seealso{tmpnam, mkstemp, P_tmpdir}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1909 @end deftypefn")
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1910 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1911 octave_value_list retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1912
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1913 retval(1) = std::string ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1914 retval(0) = -1;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1915
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1916 int nargin = args.length ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1917
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1918 if (nargin == 0)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1919 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1920 FILE *fid = tmpfile ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1921
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1922 if (fid)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1923 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1924 std::string nm;
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1925
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1926 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
1927
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1928 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
1929
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1930 if (s)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1931 retval(0) = octave_stream_list::insert (s);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1932 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1933 error ("tmpfile: failed to create octave_stdiostream object");
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1934
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1935 }
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1936 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1937 {
10411
479cc8a0a846 use gnulib namespace
John W. Eaton <jwe@octave.org>
parents: 10350
diff changeset
1938 retval(1) = gnulib::strerror (errno);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1939 retval(0) = -1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1940 }
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1941 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1942 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1943 print_usage ();
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1944
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1945 return retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1946 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1947
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1948 DEFUN (mkstemp, args, ,
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1949 "-*- texinfo -*-\n\
5109
1e36493572a0 [project @ 2005-01-18 20:17:53 by jwe]
jwe
parents: 5102
diff changeset
1950 @deftypefn {Built-in Function} {[@var{fid}, @var{name}, @var{msg}] =} mkstemp (@var{template}, @var{delete})\n\
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1951 Return the file ID corresponding to a new temporary file with a unique\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1952 name created from @var{template}. The last six characters of @var{template}\n\
5016
bdbee5282954 [project @ 2004-09-22 02:50:35 by jwe]
jwe
parents: 4944
diff changeset
1953 must be @code{XXXXXX} and these are replaced with a string that makes the\n\
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1954 filename unique. The file is then created with mode read/write and\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1955 permissions that are system dependent (on GNU/Linux systems, the permissions\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1956 will be 0600 for versions of glibc 2.0.7 and later). The file is opened\n\
9209
923c7cb7f13f Simplify TeXinfo files by eliminating redundant @iftex followed by @tex construction.
Rik <rdrider0-list@yahoo.com>
parents: 9039
diff changeset
1957 with the @w{@code{O_EXCL}} flag.\n\
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1958 \n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1959 If the optional argument @var{delete} is supplied and is true,\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1960 the file will be deleted automatically when Octave exits, or when\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1961 the function @code{purge_tmp_files} is called.\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1962 \n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1963 If successful, @var{fid} is a valid file ID, @var{name} is the name of\n\
7001
8b0cfeb06365 [project @ 2007-10-10 18:02:59 by jwe]
jwe
parents: 6905
diff changeset
1964 the file, and @var{msg} is an empty string. Otherwise, @var{fid}\n\
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1965 is -1, @var{name} is empty, and @var{msg} contains a system-dependent\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1966 error message.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1967 @seealso{tmpfile, tmpnam, P_tmpdir}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1968 @end deftypefn")
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1969 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1970 octave_value_list retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1971
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1972 retval(2) = std::string ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1973 retval(1) = std::string ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1974 retval(0) = -1;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1975
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1976 int nargin = args.length ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1977
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1978 if (nargin == 1 || nargin == 2)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1979 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1980 std::string tmpl8 = args(0).string_value ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1981
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1982 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1983 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1984 OCTAVE_LOCAL_BUFFER (char, tmp, tmpl8.size () + 1);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1985 strcpy (tmp, tmpl8.c_str ());
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1986
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1987 int fd = mkstemp (tmp);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1988
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1989 if (fd < 0)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1990 {
10411
479cc8a0a846 use gnulib namespace
John W. Eaton <jwe@octave.org>
parents: 10350
diff changeset
1991 retval(2) = gnulib::strerror (errno);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1992 retval(0) = fd;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1993 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1994 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1995 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1996 const char *fopen_mode = "w+";
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1997
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
1998 FILE *fid = fdopen (fd, fopen_mode);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1999
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2000 if (fid)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2001 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2002 std::string nm = tmp;
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2003
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2004 std::ios::openmode md = fopen_mode_to_ios_mode (fopen_mode);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2005
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2006 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
2007
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2008 if (s)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2009 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2010 retval(1) = nm;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2011 retval(0) = octave_stream_list::insert (s);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2012
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2013 if (nargin == 2 && args(1).is_true ())
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2014 mark_for_deletion (nm);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2015 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2016 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2017 error ("mkstemp: failed to create octave_stdiostream object");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2018 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2019 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2020 {
10411
479cc8a0a846 use gnulib namespace
John W. Eaton <jwe@octave.org>
parents: 10350
diff changeset
2021 retval(2) = gnulib::strerror (errno);
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2022 retval(0) = -1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2023 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2024 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2025 }
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2026 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2027 error ("mkstemp: expecting string as first argument");
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2028 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2029 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2030 print_usage ();
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2031
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2032 return retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2033 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
2034
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2035 static int
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2036 convert (int x, int ibase, int obase)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2037 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2038 int retval = 0;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2039
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2040 int tmp = x % obase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2041
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2042 if (tmp > ibase - 1)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
2043 ::error ("umask: invalid digit");
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2044 else
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2045 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2046 retval = tmp;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2047 int mult = ibase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2048 while ((x = (x - tmp) / obase))
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2049 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2050 tmp = x % obase;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2051 if (tmp > ibase - 1)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2052 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2053 ::error ("umask: invalid digit");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2054 break;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2055 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2056 retval += mult * tmp;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2057 mult *= ibase;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2058 }
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2059 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2060
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2061 return retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2062 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2063
10197
4d433bd2d4dc attempt to avoid trouble with gnulib #defines in a consistent way
John W. Eaton <jwe@octave.org>
parents: 10182
diff changeset
2064 DEFUNX ("umask", Fumask, args, ,
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
2065 "-*- texinfo -*-\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
2066 @deftypefn {Built-in Function} {} umask (@var{mask})\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
2067 Set the permission mask for file creation. The parameter @var{mask}\n\
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
2068 is an integer, interpreted as an octal number. If successful,\n\
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
2069 returns the previous value of the mask (as an integer to be\n\
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
2070 interpreted as an octal number); otherwise an error message is printed.\n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
2071 @end deftypefn")
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2072 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
2073 octave_value_list retval;
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2074
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2075 int status = 0;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2076
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2077 if (args.length () == 1)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2078 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2079 int mask = args(0).int_value (true);
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2080
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2081 if (! error_state)
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2082 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2083 if (mask < 0)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2084 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2085 status = -1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2086 ::error ("umask: MASK must be a positive integer value");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2087 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2088 else
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2089 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2090 int oct_mask = convert (mask, 8, 10);
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2091
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2092 if (! error_state)
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2093 status = convert (octave_umask (oct_mask), 10, 8);
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2094 }
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2095 }
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2096 else
10315
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2097 {
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2098 status = -1;
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2099 ::error ("umask: expecting integer argument");
57a59eae83cc untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents: 10259
diff changeset
2100 }
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2101 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2102 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2103 print_usage ();
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2104
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2105 if (status >= 0)
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
2106 retval(0) = status;
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2107
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2108 return retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2109 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2110
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2111 static octave_value
6483
d00da2148c53 [project @ 2007-04-04 02:58:48 by jwe]
jwe
parents: 6456
diff changeset
2112 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
2113 {
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2114 octave_value retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2115
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2116 int nargin = args.length ();
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2117
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2118 if (nargin == 0)
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2119 retval = val;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2120 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2121 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2122
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2123 return retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2124 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2125
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2126 #if ! defined (P_tmpdir)
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2127 #define P_tmpdir "/tmp"
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2128 #endif
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2129
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2130 DEFUNX ("P_tmpdir", FP_tmpdir, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2131 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2132 @deftypefn {Built-in Function} {} P_tmpdir ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2133 Return the default name of the directory for temporary files on\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2134 this system. The name of this directory is system dependent.\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2135 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2136 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2137 octave_value retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2138
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2139 int nargin = args.length ();
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2140
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2141 if (nargin == 0)
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2142 retval = P_tmpdir;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2143 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2144 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2145
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2146 return retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2147 }
2341
6ee55c0f25a9 [project @ 1996-07-24 10:33:09 by jwe]
jwe
parents: 2324
diff changeset
2148
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2149 // 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
2150 // this way for Matlab compatibility.
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2151
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2152 DEFUNX ("SEEK_SET", FSEEK_SET, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2153 "-*- texinfo -*-\n\
10840
89f4d7e294cc Grammarcheck .cc files
Rik <octave@nomad.inbox5.com>
parents: 10791
diff changeset
2154 @deftypefn {Built-in Function} {} SEEK_SET ()\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2155 @deftypefnx {Built-in Function} {} SEEK_CUR ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2156 @deftypefnx {Built-in Function} {} SEEK_END ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2157 Return the value required to request that @code{fseek} perform\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2158 one of the following actions:\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2159 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2160 @item SEEK_SET\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2161 Position file relative to the beginning.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2162 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2163 @item SEEK_CUR\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2164 Position file relative to the current position.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2165 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2166 @item SEEK_END\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2167 Position file relative to the end.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2168 @end table\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2169 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2170 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2171 return const_value ("SEEK_SET", args, -1);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2172 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2173
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2174 DEFUNX ("SEEK_CUR", FSEEK_CUR, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2175 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2176 @deftypefn {Built-in Function} {} SEEK_CUR ()\n\
3458
d25bc039237b [project @ 2000-01-19 09:36:14 by jwe]
jwe
parents: 3448
diff changeset
2177 See SEEK_SET.\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2178 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2179 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2180 return const_value ("SEEK_CUR", args, 0);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2181 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2182
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2183 DEFUNX ("SEEK_END", FSEEK_END, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2184 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2185 @deftypefn {Built-in Function} {} SEEK_END ()\n\
3458
d25bc039237b [project @ 2000-01-19 09:36:14 by jwe]
jwe
parents: 3448
diff changeset
2186 See SEEK_SET.\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2187 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2188 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2189 return const_value ("SEEK_END", args, 1);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2190 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2191
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2192 static octave_value
6483
d00da2148c53 [project @ 2007-04-04 02:58:48 by jwe]
jwe
parents: 6456
diff changeset
2193 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
2194 const octave_value& val)
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2195 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2196 octave_value retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2197
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2198 int nargin = args.length ();
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2199
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2200 if (nargin == 0)
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2201 retval = val;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2202 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2203 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2204
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2205 return retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2206 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2207
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2208 DEFUNX ("stdin", Fstdin, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2209 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2210 @deftypefn {Built-in Function} {} stdin ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2211 Return the numeric value corresponding to the standard input stream.\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2212 When Octave is used interactively, this is filtered through the command\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2213 line editing functions.\n\
5333
ac8d64b9e76a [project @ 2005-05-02 18:15:20 by jwe]
jwe
parents: 5325
diff changeset
2214 @seealso{stdout, stderr}\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2215 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2216 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2217 return const_value ("stdin", args, stdin_file);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2218 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2219
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2220 DEFUNX ("stdout", Fstdout, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2221 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2222 @deftypefn {Built-in Function} {} stdout ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2223 Return the numeric value corresponding to the standard output stream.\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2224 Data written to the standard output is normally filtered through the pager.\n\
5333
ac8d64b9e76a [project @ 2005-05-02 18:15:20 by jwe]
jwe
parents: 5325
diff changeset
2225 @seealso{stdin, stderr}\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2226 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2227 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2228 return const_value ("stdout", args, stdout_file);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2229 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2230
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2231 DEFUNX ("stderr", Fstderr, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2232 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2233 @deftypefn {Built-in Function} {} stderr ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2234 Return the numeric value corresponding to the standard error stream.\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2235 Even if paging is turned on, the standard error is not sent to the\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2236 pager. It is useful for error messages and prompts.\n\
5333
ac8d64b9e76a [project @ 2005-05-02 18:15:20 by jwe]
jwe
parents: 5325
diff changeset
2237 @seealso{stdin, stdout}\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2238 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2239 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2240 return const_value ("stderr", args, stderr_file);
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2241 }