annotate src/file-io.cc @ 7097:e8c94e473c68

[project @ 2007-11-02 17:24:23 by jwe]
author jwe
date Fri, 02 Nov 2007 17:24:24 +0000
parents 81bed50b9feb
children 745a8299c2b5 b172a66c7433
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1 /*
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2
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3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
a1dbe9d80eee [project @ 2007-10-12 21:27:11 by jwe]
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4 2002, 2003, 2004, 2005, 2006, 2007 John W. Eaton
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5
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6 This file is part of Octave.
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7
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8 Octave is free software; you can redistribute it and/or modify it
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9 under the terms of the GNU General Public License as published by the
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10 Free Software Foundation; either version 3 of the License, or (at your
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11 option) any later version.
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12
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13 Octave is distributed in the hope that it will be useful, but WITHOUT
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14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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16 for more details.
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17
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18 You should have received a copy of the GNU General Public License
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19 along with Octave; see the file COPYING. If not, see
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20 <http://www.gnu.org/licenses/>.
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21
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22 */
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23
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24 // Originally written by John C. Campbell <jcc@bevo.che.wisc.edu>
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25 //
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26 // Thomas Baier <baier@ci.tuwien.ac.at> added the original versions of
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27 // the following functions:
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28 //
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29 // popen
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30 // pclose
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31 // execute (now popen2.m)
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32 // sync_system (now merged with system)
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33 // async_system (now merged with system)
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34
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35 // Extensively revised by John W. Eaton <jwe@bevo.che.wics.edu>,
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36 // April 1996.
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37
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38 #ifdef HAVE_CONFIG_H
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39 #include <config.h>
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40 #endif
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41
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42 #include <cerrno>
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43 #include <climits>
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44 #include <cstdio>
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45
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46 #include <iostream>
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47 #include <vector>
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48
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49 #ifdef HAVE_UNISTD_H
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50 #ifdef HAVE_SYS_TYPES_H
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51 #include <sys/types.h>
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52 #endif
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53 #include <unistd.h>
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54 #endif
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55
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56 #ifdef HAVE_ZLIB_H
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57 #include <zlib.h>
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58 #endif
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59
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60 #include "error.h"
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61 #include "file-ops.h"
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62 #include "file-stat.h"
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63 #include "lo-ieee.h"
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64 #include "oct-env.h"
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65
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66 #include "defun.h"
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67 #include "file-io.h"
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68 #include "load-path.h"
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69 #include "oct-fstrm.h"
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70 #include "oct-iostrm.h"
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71 #include "oct-map.h"
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72 #include "oct-obj.h"
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73 #include "oct-prcstrm.h"
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74 #include "oct-stream.h"
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75 #include "oct-strstrm.h"
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76 #include "pager.h"
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77 #include "so-array.h"
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78 #include "sysdep.h"
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79 #include "utils.h"
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80 #include "variables.h"
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81
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82 static octave_value stdin_file;
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83 static octave_value stdout_file;
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84 static octave_value stderr_file;
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85
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86 static octave_stream stdin_stream;
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87 static octave_stream stdout_stream;
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88 static octave_stream stderr_stream;
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89
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90 void
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91 initialize_file_io (void)
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92 {
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93 stdin_stream = octave_istream::create (&std::cin, "stdin");
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94
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95 // This uses octave_stdout (see pager.h), not std::cout so that Octave's
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96 // standard output stream will pass through the pager.
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97
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98 stdout_stream = octave_ostream::create (&octave_stdout, "stdout");
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99
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100 stderr_stream = octave_ostream::create (&std::cerr, "stderr");
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101
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102 stdin_file = octave_stream_list::insert (stdin_stream);
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103 stdout_file = octave_stream_list::insert (stdout_stream);
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104 stderr_file = octave_stream_list::insert (stderr_stream);
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105 }
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106
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107 void
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108 close_files (void)
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109 {
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110 octave_stream_list::clear ();
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111 }
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112
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113 // List of files to delete when we exit or crash.
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114 //
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115 // FIXME -- this should really be static, but that causes
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116 // problems on some systems.
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117 std::stack <std::string> tmp_files;
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118
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119 void
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120 mark_for_deletion (const std::string& file)
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121 {
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122 tmp_files.push (file);
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123 }
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124
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125 void
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126 cleanup_tmp_files (void)
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127 {
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128 while (! tmp_files.empty ())
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129 {
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130 std::string filename = tmp_files.top ();
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131 tmp_files.pop ();
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132 unlink (filename.c_str ());
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133 }
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134 }
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135
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136 static std::ios::openmode
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137 fopen_mode_to_ios_mode (const std::string& mode_arg)
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138 {
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139 std::ios::openmode retval = std::ios::in;
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140
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141 if (! mode_arg.empty ())
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142 {
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143 // Could probably be faster, but does it really matter?
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144
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145 std::string mode = mode_arg;
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146
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147 // 'W' and 'R' are accepted as 'w' and 'r', but we warn about
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148 // them because Matlab says they perform "automatic flushing"
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149 // but we don't know precisely what action that implies.
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150
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151 size_t pos = mode.find ('W');
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152
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153 if (pos != NPOS)
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
154 {
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
155 warning ("fopen: treating mode \"W\" as equivalent to \"w\"");
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
156 mode[pos] = 'w';
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
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parents: 7017
diff changeset
157 }
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
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parents: 7017
diff changeset
158
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
159 pos = mode.find ('R');
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
160
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
161 if (pos != NPOS)
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
162 {
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
163 warning ("fopen: treating mode \"R\" as equivalent to \"r\"");
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
164 mode[pos] = 'r';
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
165 }
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
jwe
parents: 7017
diff changeset
166
405cf85b435c [project @ 2007-10-30 14:04:59 by jwe]
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parents: 7017
diff changeset
167 pos = mode.find ('z');
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
168
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
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parents: 5320
diff changeset
169 if (pos != NPOS)
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
170 {
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
171 #if defined (HAVE_ZLIB)
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
172 mode.erase (pos, 1);
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
173 #else
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
174 error ("this version of Octave does not support gzipped files");
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
175 #endif
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
176 }
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
177
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
178 if (! error_state)
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
179 {
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
180 if (mode == "rt")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
181 retval = std::ios::in;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
182 else if (mode == "wt")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
183 retval = std::ios::out | std::ios::trunc;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
184 else if (mode == "at")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
185 retval = std::ios::out | std::ios::app;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
186 else if (mode == "r+t")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
187 retval = std::ios::in | std::ios::out;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
188 else if (mode == "w+t")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
189 retval = std::ios::in | std::ios::out | std::ios::trunc;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
190 else if (mode == "a+t")
7097
e8c94e473c68 [project @ 2007-11-02 17:24:23 by jwe]
jwe
parents: 7096
diff changeset
191 retval = std::ios::in | std::ios::out | std::ios::app;
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
192 else if (mode == "rb" || mode == "r")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
193 retval = std::ios::in | std::ios::binary;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
194 else if (mode == "wb" || mode == "w")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
195 retval = std::ios::out | std::ios::trunc | std::ios::binary;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
196 else if (mode == "ab" || mode == "a")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
197 retval = std::ios::out | std::ios::app | std::ios::binary;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
198 else if (mode == "r+b" || mode == "r+")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
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parents: 5320
diff changeset
199 retval = std::ios::in | std::ios::out | std::ios::binary;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
200 else if (mode == "w+b" || mode == "w+")
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
201 retval = (std::ios::in | std::ios::out | std::ios::trunc
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
202 | std::ios::binary);
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
203 else if (mode == "a+b" || mode == "a+")
7097
e8c94e473c68 [project @ 2007-11-02 17:24:23 by jwe]
jwe
parents: 7096
diff changeset
204 retval = (std::ios::in | std::ios::out | std::ios::app
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
205 | std::ios::binary);
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
206 else
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
207 ::error ("invalid mode specified");
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
208 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
209 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
210
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
211 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
212 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
213
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
214 DEFUN (fclose, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
215 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
216 @deftypefn {Built-in Function} {} fclose (@var{fid})\n\
4594
3a284f89aa41 [project @ 2003-11-12 02:27:28 by jwe]
jwe
parents: 4587
diff changeset
217 Closes the specified file. If successful, @code{fclose} returns 0,\n\
3a284f89aa41 [project @ 2003-11-12 02:27:28 by jwe]
jwe
parents: 4587
diff changeset
218 otherwise, it returns -1.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
219 @seealso{fopen, fseek, ftell}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
220 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
221 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
222 octave_value retval = -1;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
223
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
224 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
225
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
226 if (nargin == 1)
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
227 retval = octave_stream_list::remove (args(0), "fclose");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
228 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
229 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
230
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
231 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
232 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
233
5144
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
234 DEFUN (fclear, args, ,
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
235 "-*- texinfo -*-\n\
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
236 @deftypefn {Built-in Function} {} fclear (@var{fid})\n\
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
237 Clear the stream state for the specified file.\n\
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
238 @end deftypefn")
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 octave_value retval;
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 nargin = args.length ();
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 if (nargin == 1)
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 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
247
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
248 octave_stream os = octave_stream_list::lookup (fid, "fclear");
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
249
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
250 if (! error_state)
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
251 os.clearerr ();
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
252 }
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
253 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
254 print_usage ();
5144
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
255
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
256 return retval;
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
257 }
25b090e1be9f [project @ 2005-02-15 12:06:05 by jwe]
jwe
parents: 5109
diff changeset
258
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
259 DEFUN (fflush, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
260 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
261 @deftypefn {Built-in Function} {} fflush (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
262 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
263 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
264 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
265 stream before calling @code{input}.\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
266 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
267 @code{fflush} returns 0 on success and an OS dependent error value\n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
268 (@minus{}1 on unix) on error.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
269 @seealso{fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
270 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
271 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
272 octave_value retval = -1;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
273
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
274 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
275
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
276 if (nargin == 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
277 {
5775
ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe]
jwe
parents: 5749
diff changeset
278 // 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
279
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
280 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
281
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
282 if (fid == 1)
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
283 {
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
284 flush_octave_stdout ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
285
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
286 retval = 0;
2609
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
287 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
288 else
2609
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
289 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
290 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
291
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
292 if (! error_state)
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
293 retval = os.flush ();
2609
12bc9d0a50b5 [project @ 1997-01-18 00:17:36 by jwe]
jwe
parents: 2599
diff changeset
294 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
295 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
296 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
297 print_usage ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
298
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
299 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
300 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
301
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
302 DEFUN (fgetl, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
303 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
304 @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
305 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
306 or @var{len} characters have been read. The characters read, excluding\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
307 the possible trailing newline, are returned as a string.\n\
1339
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parents: 1338
diff changeset
308 \n\
3372
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parents: 3342
diff changeset
309 If @var{len} is omitted, @code{fgetl} reads until the next newline\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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parents: 3342
diff changeset
310 character.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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parents: 3342
diff changeset
311 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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parents: 3342
diff changeset
312 If there are no more characters to read, @code{fgetl} returns @minus{}1.\n\
5642
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diff changeset
313 @seealso{fread, fscanf}\n\
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parents: 5421
diff changeset
314 @end deftypefn")
1339
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parents: 1338
diff changeset
315 {
4468
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parents: 4388
diff changeset
316 static std::string who = "fgetl";
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parents: 4388
diff changeset
317
2599
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diff changeset
318 octave_value_list retval;
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parents: 2458
diff changeset
319
4233
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parents: 4102
diff changeset
320 retval(1) = 0;
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
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parents: 4102
diff changeset
321 retval(0) = -1;
1339
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parents: 1338
diff changeset
322
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
323 int nargin = args.length ();
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
324
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
325 if (nargin == 1 || nargin == 2)
2095
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parents: 1996
diff changeset
326 {
4468
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parents: 4388
diff changeset
327 octave_stream os = octave_stream_list::lookup (args(0), who);
2095
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parents: 1996
diff changeset
328
3341
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parents: 3340
diff changeset
329 if (! error_state)
2095
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parents: 1996
diff changeset
330 {
6345
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diff changeset
331 octave_value len_arg = (nargin == 2) ? args(1) : octave_value ();
2095
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parents: 1996
diff changeset
332
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
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parents: 1996
diff changeset
333 bool err = false;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
334
4468
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parents: 4388
diff changeset
335 std::string tmp = os.getl (len_arg, err, who);
2095
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parents: 1996
diff changeset
336
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
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parents: 1996
diff changeset
337 if (! err)
2599
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parents: 2458
diff changeset
338 {
4254
df5f2e433a11 [project @ 2002-12-31 19:43:07 by jwe]
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parents: 4233
diff changeset
339 retval(1) = tmp.length ();
2599
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parents: 2458
diff changeset
340 retval(0) = tmp;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
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parents: 2458
diff changeset
341 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
342 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
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parents: 1996
diff changeset
343 }
1339
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jwe
parents: 1338
diff changeset
344 else
5823
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parents: 5775
diff changeset
345 print_usage ();
1339
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
346
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
347 return retval;
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
348 }
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
349
2095
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jwe
parents: 1996
diff changeset
350 DEFUN (fgets, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
351 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
352 @deftypefn {Built-in Function} {} fgets (@var{fid}, @var{len})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
353 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
354 or @var{len} characters have been read. The characters read, including\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
355 the possible trailing newline, are returned as a string.\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
356 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
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parents: 3342
diff changeset
357 If @var{len} is omitted, @code{fgets} reads until the next newline\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
358 character.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
359 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
360 If there are no more characters to read, @code{fgets} returns @minus{}1.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
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parents: 5421
diff changeset
361 @seealso{fread, fscanf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
362 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
363 {
4468
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parents: 4388
diff changeset
364 static std::string who = "fgets";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
365
2599
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parents: 2458
diff changeset
366 octave_value_list retval;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
367
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
368 retval(1) = 0.0;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
369 retval(0) = -1.0;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
370
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
371 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
372
1338
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
373 if (nargin == 1 || nargin == 2)
2095
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jwe
parents: 1996
diff changeset
374 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
375 octave_stream os = octave_stream_list::lookup (args(0), who);
2095
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jwe
parents: 1996
diff changeset
376
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
377 if (! error_state)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
378 {
6345
9e058e5fa8a7 [project @ 2007-02-22 22:22:53 by jwe]
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parents: 6159
diff changeset
379 octave_value len_arg = (nargin == 2) ? args(1) : octave_value ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
380
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
381 bool err = false;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
382
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
383 std::string tmp = os.gets (len_arg, err, who);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
384
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
385 if (! err)
2599
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
386 {
4254
df5f2e433a11 [project @ 2002-12-31 19:43:07 by jwe]
jwe
parents: 4233
diff changeset
387 retval(1) = tmp.length ();
2599
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
388 retval(0) = tmp;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
389 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
390 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
391 }
1338
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
392 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
393 print_usage ();
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
394
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
395 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
396 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
397
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
398 static octave_stream
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
399 do_stream_open (const std::string& name, const std::string& mode,
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
400 const std::string& arch, int& fid)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
401 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
402 octave_stream retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
403
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
404 fid = -1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
405
4036
1432e11733d1 [project @ 2002-08-12 18:38:40 by jwe]
jwe
parents: 4028
diff changeset
406 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
407
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
408 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
409 {
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
410 oct_mach_info::float_format flt_fmt =
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
411 oct_mach_info::string_to_float_format (arch);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
412
4798
da0d1c453971 [project @ 2004-02-24 17:30:05 by jwe]
jwe
parents: 4797
diff changeset
413 if (! error_state)
da0d1c453971 [project @ 2004-02-24 17:30:05 by jwe]
jwe
parents: 4797
diff changeset
414 {
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
415 std::string fname = file_ops::tilde_expand (name);
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
416
6838
5e3350bdd91d [project @ 2007-08-28 02:59:58 by jwe]
jwe
parents: 6665
diff changeset
417 if (! (md & std::ios::out
5e3350bdd91d [project @ 2007-08-28 02:59:58 by jwe]
jwe
parents: 6665
diff changeset
418 || octave_env::absolute_pathname (fname)
5e3350bdd91d [project @ 2007-08-28 02:59:58 by jwe]
jwe
parents: 6665
diff changeset
419 || octave_env::rooted_relative_pathname (fname)))
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
420 {
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
421 file_stat fs (fname);
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
422
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
423 if (! fs.exists ())
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
424 {
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
425 std::string tmp = octave_env::make_absolute
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
426 (load_path::find_file (fname), octave_env::getcwd ());
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
427
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
428 if (! tmp.empty ())
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
429 {
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
430 warning_with_id ("Octave:fopen-file-in-path",
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
431 "fopen: file found in load path");
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
432 fname = tmp;
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
433 }
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
434 }
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
435 }
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
436
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
437 std::string tmode = mode;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
438
6405
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
439 // Use binary mode if 't' is not specified, but don't add
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
440 // 'b' if it is already present.
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
441
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
442 size_t bpos = tmode.find ('b');
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
443 size_t tpos = tmode.find ('t');
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
444
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
445 if (bpos == NPOS && tpos == NPOS)
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
446 tmode += 'b';
b298a4c12fc3 [project @ 2007-03-14 16:51:28 by jwe]
jwe
parents: 6345
diff changeset
447
6905
aee959a21c4b [project @ 2007-09-17 16:00:30 by jwe]
jwe
parents: 6838
diff changeset
448 #if defined (HAVE_ZLIB)
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
449 size_t pos = tmode.find ('z');
4798
da0d1c453971 [project @ 2004-02-24 17:30:05 by jwe]
jwe
parents: 4797
diff changeset
450
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
451 if (pos != NPOS)
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
452 {
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
453 tmode.erase (pos, 1);
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
454
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
455 gzFile fptr = ::gzopen (fname.c_str (), tmode.c_str ());
4797
19b8225bdaa2 [project @ 2004-02-23 22:10:31 by jwe]
jwe
parents: 4726
diff changeset
456
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
457 if (fptr)
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
458 retval = octave_zstdiostream::create (fname, fptr, md, flt_fmt);
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
459 else
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
460 {
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
461 using namespace std;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
462 retval.error (::strerror (errno));
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
463 }
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
464 }
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
465 else
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
466 #endif
4799
e2d7d1ef5e55 [project @ 2004-02-24 19:47:18 by jwe]
jwe
parents: 4798
diff changeset
467 {
6905
aee959a21c4b [project @ 2007-09-17 16:00:30 by jwe]
jwe
parents: 6838
diff changeset
468 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
469
6159
645605133a6f [project @ 2006-11-14 02:55:05 by jwe]
jwe
parents: 6108
diff changeset
470 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
471
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
472 if (! fptr)
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
473 {
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
474 using namespace std;
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
475 retval.error (::strerror (errno));
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
476 }
4798
da0d1c453971 [project @ 2004-02-24 17:30:05 by jwe]
jwe
parents: 4797
diff changeset
477 }
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
478
4797
19b8225bdaa2 [project @ 2004-02-23 22:10:31 by jwe]
jwe
parents: 4726
diff changeset
479 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
480 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
481
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
482 return retval;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
483 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
484
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
485 static octave_stream
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
486 do_stream_open (const octave_value& tc_name, const octave_value& tc_mode,
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
487 const octave_value& tc_arch, const char *fcn, int& fid)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
488 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
489 octave_stream retval;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
490
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
491 fid = -1;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
492
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
493 std::string name = tc_name.string_value ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
494
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
495 if (! error_state)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
496 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
497 std::string mode = tc_mode.string_value ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
498
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
499 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
500 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
501 std::string arch = tc_arch.string_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
502
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
503 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
504 retval = do_stream_open (name, mode, arch, fid);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
505 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
506 ::error ("%s: architecture type must be a string", fcn);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
507 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
508 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
509 ::error ("%s: file mode must be a string", fcn);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
510 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
511 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
512 ::error ("%s: file name must be a string", fcn);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
513
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
514 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
515 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
516
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
517 DEFUN (fopen, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
518 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
519 @deftypefn {Built-in Function} {[@var{fid}, @var{msg}] =} fopen (@var{name}, @var{mode}, @var{arch})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
520 @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
521 @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
522 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
523 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
524 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
525 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
526 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
527 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
528 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
529 reading, writing, or both.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
530 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
531 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
532 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
533 @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
534 \n\
5353
df230b7df93c [project @ 2005-05-18 02:18:24 by jwe]
jwe
parents: 5333
diff changeset
535 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
536 open file given its file id.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
537 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
538 For example,\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
539 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
540 @example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
541 myfile = fopen (\"splat.dat\", \"r\", \"ieee-le\");\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
542 @end example\n\
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
543 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
544 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
545 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
546 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
547 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
548 representation.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
549 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
550 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
551 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
552 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
553 produce unexpected results.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
554 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
555 The possible values @samp{mode} may have are\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
556 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
557 @table @asis\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
558 @item @samp{r}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
559 Open a file for reading.\n\
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
560 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
561 @item @samp{w}\n\
7001
8b0cfeb06365 [project @ 2007-10-10 18:02:59 by jwe]
jwe
parents: 6905
diff changeset
562 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
563 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
564 @item @samp{a}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
565 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
566 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
567 @item @samp{r+}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
568 Open an existing file for reading and writing.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
569 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
570 @item @samp{w+}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
571 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
572 discarded.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
573 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
574 @item @samp{a+}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
575 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
576 file.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
577 @end table\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
578 \n\
4865
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
579 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
580 \"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
581 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
582 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
583 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
584 specified is binary mode.\n\
2ac0f95eaa29 [project @ 2004-04-16 16:32:24 by jwe]
jwe
parents: 4799
diff changeset
585 \n\
5325
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
586 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
587 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
588 must also open the file in binary mode.\n\
ecbe4aa87e51 [project @ 2005-04-29 20:48:35 by jwe]
jwe
parents: 5320
diff changeset
589 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
590 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
591 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
592 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
593 @table @asis\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
594 @samp{native}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
595 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
596 \n\
4082
b8bae1ba4651 [project @ 2002-10-01 18:10:05 by jwe]
jwe
parents: 4070
diff changeset
597 @samp{ieee-be}\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
598 IEEE big endian format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
599 \n\
4082
b8bae1ba4651 [project @ 2002-10-01 18:10:05 by jwe]
jwe
parents: 4070
diff changeset
600 @samp{ieee-le}\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
601 IEEE little endian format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
602 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
603 @samp{vaxd}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
604 VAX D floating format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
605 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
606 @samp{vaxg}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
607 VAX G floating format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
608 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
609 @samp{cray}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
610 Cray floating format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
611 @end table\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 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
614 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
615 @samp{ieee-be}, and @samp{ieee-le} formats.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
616 @seealso{fclose, fread, fseek}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
617 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
618 {
2599
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
619 octave_value_list retval;
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
620
9705ea40f0a2 [project @ 1996-12-19 04:49:09 by jwe]
jwe
parents: 2458
diff changeset
621 retval(0) = -1.0;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
622
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
623 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
624
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
625 if (nargin == 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
626 {
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
627 if (args(0).is_string ())
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
628 {
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
629 // If there is only one argument and it is a string but it
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
630 // is not the string "all", we assume it is a file to open
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
631 // with MODE = "r". To open a file called "all", you have
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
632 // to supply more than one argument.
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
633
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
634 if (args(0).string_value () == "all")
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
635 return octave_stream_list::open_file_numbers ();
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
636 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
637 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
638 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
639 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
640
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
641 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
642 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
643 retval(2) = tmp(2);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
644 retval(1) = tmp(1);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
645 retval(0) = tmp(0);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
646 }
3263
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
647
7d80b56e0dc8 [project @ 1999-08-20 19:10:09 by jwe]
jwe
parents: 3246
diff changeset
648 return retval;
2432
874f758eade5 [project @ 1996-10-26 16:37:36 by jwe]
jwe
parents: 2370
diff changeset
649 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
650 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
651
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
652 if (nargin > 0 && nargin < 4)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
653 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
654 octave_value mode = (nargin == 2 || nargin == 3)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
655 ? args(1) : octave_value ("r");
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
656
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
657 octave_value arch = (nargin == 3)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
658 ? args(2) : octave_value ("native");
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
659
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
660 int fid = -1;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
661
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
662 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
663
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
664 if (os && ! error_state)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
665 {
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
666 retval(1) = "";
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
667 retval(0) = octave_stream_list::insert (os);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
668 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
669 else
5370
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
670 {
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
671 int error_number = 0;
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
672
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
673 retval(1) = os.error (false, error_number);
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
674 retval(0) = -1.0;
f07a9653b844 [project @ 2005-05-24 02:25:57 by jwe]
jwe
parents: 5353
diff changeset
675 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
676 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
677 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
678 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
679
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
680 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
681 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
682
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
683 DEFUN (freport, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
684 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
685 @deftypefn {Built-in Function} {} freport ()\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
686 Print a list of which files have been opened, and whether they are open\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
687 for reading, writing, or both. For example,\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
688 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
689 @example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
690 @group\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
691 freport ()\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
692 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
693 @print{} number mode name\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
694 @print{} \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
695 @print{} 0 r stdin\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
696 @print{} 1 w stdout\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
697 @print{} 2 w stderr\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
698 @print{} 3 r myfile\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
699 @end group\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
700 @end example\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
701 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
702 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
703 octave_value_list retval;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
704
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
705 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
706
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
707 if (nargin > 0)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
708 warning ("freport: ignoring extra arguments");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
709
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
710 octave_stdout << octave_stream_list::list_open_files ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
711
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
712 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
713 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
714
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
715 DEFUN (frewind, args, nargout,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
716 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
717 @deftypefn {Built-in Function} {} frewind (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
718 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
719 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
720 @code{fseek (@var{fid}, 0, SEEK_SET)}.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
721 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
722 {
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
723 octave_value retval;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
724
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
725 int result = -1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
726
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
727 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
728
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
729 if (nargin == 1)
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
730 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
731 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
732
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
733 if (! error_state)
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
734 result = os.rewind ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
735 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
736 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
737 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
738
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
739 if (nargout > 0)
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
740 retval = result;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
741
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
742 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
743 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
744
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
745 DEFUN (fseek, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
746 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
747 @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
748 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
749 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
750 The pointer is positioned @var{offset} characters from the @var{origin},\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
751 which may be one of the predefined variables @code{SEEK_CUR} (current\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
752 position), @code{SEEK_SET} (beginning), or @code{SEEK_END} (end of\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
753 file) or strings \"cof\", \"bof\" or \"eof\". If @var{origin} is omitted,\n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
754 @code{SEEK_SET} is assumed. The offset must be zero, or a value returned\n\
5421
0f6947621602 [project @ 2005-07-28 17:54:42 by jwe]
jwe
parents: 5401
diff changeset
755 by @code{ftell} (in which case @var{origin} must be @code{SEEK_SET}).\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
756 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
757 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
758 @seealso{ftell, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
759 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
760 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
761 octave_value retval = -1;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
762
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
763 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
764
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
765 if (nargin == 2 || nargin == 3)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
766 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
767 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
768
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
769 if (! error_state)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
770 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
771 octave_value origin_arg = (nargin == 3)
2341
6ee55c0f25a9 [project @ 1996-07-24 10:33:09 by jwe]
jwe
parents: 2324
diff changeset
772 ? args(2) : octave_value (-1.0);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
773
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
774 retval = os.seek (args(1), origin_arg);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
775 }
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
776 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
777 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
778 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
779
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
780 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
781 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
782
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
783 DEFUN (ftell, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
784 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
785 @deftypefn {Built-in Function} {} ftell (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
786 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
787 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
788 @seealso{fseek, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
789 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
790 {
4797
19b8225bdaa2 [project @ 2004-02-23 22:10:31 by jwe]
jwe
parents: 4726
diff changeset
791 octave_value retval = -1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
792
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
793 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
794
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
795 if (nargin == 1)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
796 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
797 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
798
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
799 if (! error_state)
4797
19b8225bdaa2 [project @ 2004-02-23 22:10:31 by jwe]
jwe
parents: 4726
diff changeset
800 retval = os.tell ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
801 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
802 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
803 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
804
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
805 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
806 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
807
3737
b736f8b8f0a1 [project @ 2000-11-16 18:01:08 by jwe]
jwe
parents: 3569
diff changeset
808 DEFUN (fprintf, args, nargout,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
809 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
810 @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
811 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
812 written to the stream @var{fid} instead of @code{stdout}.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
813 @seealso{printf, sprintf, fread, fscanf, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
814 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
815 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
816 static std::string who = "fprintf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
817
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
818 octave_value retval;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
819
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
820 int result = -1;
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
821
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
822 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
823
2875
2e45e7a3d45e [project @ 1997-04-24 08:56:20 by jwe]
jwe
parents: 2873
diff changeset
824 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
825 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
826 octave_stream os;
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
827 int fmt_n = 0;
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
828
3737
b736f8b8f0a1 [project @ 2000-11-16 18:01:08 by jwe]
jwe
parents: 3569
diff changeset
829 if (args(0).is_string ())
b736f8b8f0a1 [project @ 2000-11-16 18:01:08 by jwe]
jwe
parents: 3569
diff changeset
830 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
831 os = octave_stream_list::lookup (1, who);
3737
b736f8b8f0a1 [project @ 2000-11-16 18:01:08 by jwe]
jwe
parents: 3569
diff changeset
832 }
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
833 else
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
834 {
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
835 fmt_n = 1;
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
836 os = octave_stream_list::lookup (args(0), who);
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
837 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
838
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
839 if (! error_state)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
840 {
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
841 if (args(fmt_n).is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
842 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
843 octave_value_list tmp_args;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
844
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
845 if (nargin > 1 + fmt_n)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
846 {
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
847 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
848
2873
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
849 for (int i = fmt_n + 1; i < nargin; i++)
c3f7ed3874af [project @ 1997-04-23 04:01:02 by jwe]
jwe
parents: 2847
diff changeset
850 tmp_args(i-fmt_n-1) = args(i);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
851 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
852
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5275
diff changeset
853 result = os.printf (args(fmt_n), tmp_args, who);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
854 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
855 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
856 ::error ("%s: format must be a string", who.c_str ());
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
857 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
858 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
859 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
860 print_usage ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
861
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
862 if (nargout > 0)
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
863 retval = result;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
864
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
865 return retval;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
866 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
867
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
868 DEFUN (printf, args, nargout,
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
869 "-*- texinfo -*-\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
870 @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
871 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
872 @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
873 characters printed.\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
874 @ifclear OCTAVE_MANUAL\n\
5095
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
875 \n\
5653
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
876 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
877 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
878 @end ifclear\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
879 @seealso{fprintf, sprintf, scanf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
880 @end deftypefn")
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
881 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
882 static std::string who = "printf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
883
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
884 octave_value retval;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
885
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
886 int result = -1;
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
887
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
888 int nargin = args.length ();
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
889
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
890 if (nargin > 0)
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
891 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
892 if (args(0).is_string ())
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
893 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
894 octave_value_list tmp_args;
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
895
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
896 if (nargin > 1)
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
897 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
898 tmp_args.resize (nargin-1, octave_value ());
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
899
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
900 for (int i = 1; i < nargin; i++)
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
901 tmp_args(i-1) = args(i);
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
902 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
903
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5275
diff changeset
904 result = stdout_stream.printf (args(0), tmp_args, who);
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
905 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
906 else
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
907 ::error ("%s: format must be a string", who.c_str ());
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
908 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
909 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
910 print_usage ();
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
911
4715
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
912 if (nargout > 0)
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
913 retval = result;
7bed0ef1a6ad [project @ 2004-01-22 22:10:28 by jwe]
jwe
parents: 4649
diff changeset
914
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
915 return retval;
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
916 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
917
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
918 DEFUN (fputs, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
919 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
920 @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
921 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
922 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
923 Return a non-negative number on success and EOF on error.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
924 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
925 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
926 static std::string who = "fputs";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
927
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
928 octave_value retval = -1;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
929
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
930 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
931
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
932 if (nargin == 2)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
933 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
934 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
935
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
936 if (! error_state)
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
937 retval = os.puts (args(1), who);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
938 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
939 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
940 print_usage ();
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
941
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
942 return retval;
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
943 }
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
944
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
945 DEFUN (puts, args, ,
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
946 "-*- texinfo -*-\n\
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
947 @deftypefn {Built-in Function} {} puts (@var{string})\n\
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
948 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
949 \n\
c9a44ec47b20 [project @ 2004-12-03 14:18:51 by jwe]
jwe
parents: 5041
diff changeset
950 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
951 @end deftypefn")
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
952 {
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
953 static std::string who = "puts";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
954
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
955 octave_value retval = -1;
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 if (args.length () == 1)
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
958 retval = stdout_stream.puts (args(0), who);
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
959 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
960 print_usage ();
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
961
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
962 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
963 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
964
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
965 DEFUN (sprintf, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
966 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
967 @deftypefn {Built-in Function} {} sprintf (@var{template}, @dots{})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
968 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
969 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
970 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
971 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
972 converted.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
973 @seealso{printf, fprintf, sscanf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
974 @end deftypefn")
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
975 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
976 static std::string who = "sprintf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
977
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
978 octave_value_list retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
979
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
980 int nargin = args.length ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
981
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
982 if (nargin > 0)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
983 {
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
984 retval(2) = -1.0;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
985 retval(1) = "unknown error";
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
986 retval(0) = "";
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
987
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
988 octave_ostrstream *ostr = new octave_ostrstream ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
989
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
990 octave_stream os (ostr);
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
991
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
992 if (os.is_valid ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
993 {
6007
52b520087c50 [project @ 2006-09-27 15:05:53 by jwe]
jwe
parents: 5906
diff changeset
994 octave_value fmt_arg = args(0);
52b520087c50 [project @ 2006-09-27 15:05:53 by jwe]
jwe
parents: 5906
diff changeset
995
52b520087c50 [project @ 2006-09-27 15:05:53 by jwe]
jwe
parents: 5906
diff changeset
996 if (fmt_arg.is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
997 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
998 octave_value_list tmp_args;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
999
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1000 if (nargin > 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1001 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1002 tmp_args.resize (nargin-1, octave_value ());
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1003
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1004 for (int i = 1; i < nargin; i++)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1005 tmp_args(i-1) = args(i);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1006 }
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1007
6007
52b520087c50 [project @ 2006-09-27 15:05:53 by jwe]
jwe
parents: 5906
diff changeset
1008 retval(2) = os.printf (fmt_arg, tmp_args, who);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1009 retval(1) = os.error ();
6007
52b520087c50 [project @ 2006-09-27 15:05:53 by jwe]
jwe
parents: 5906
diff changeset
1010 retval(0) = octave_value (ostr->str (),
52b520087c50 [project @ 2006-09-27 15:05:53 by jwe]
jwe
parents: 5906
diff changeset
1011 fmt_arg.is_sq_string () ? '\'' : '"');
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1012 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1013 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1014 ::error ("%s: format must be a string", who.c_str ());
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1015 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1016 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1017 ::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
1018 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1019 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1020 print_usage ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1021
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1022 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1023 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1024
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1025 DEFUN (fscanf, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1026 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1027 @deftypefn {Built-in Function} {[@var{val}, @var{count}] =} fscanf (@var{fid}, @var{template}, @var{size})\n\
3491
2c7524ffdbf5 [project @ 2000-01-28 22:44:13 by jwe]
jwe
parents: 3458
diff changeset
1028 @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
1029 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
1030 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
1031 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1032 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
1033 and may be one of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1034 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1035 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1036 @item Inf\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1037 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
1038 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1039 @item @var{nr}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1040 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
1041 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1042 @item [@var{nr}, Inf]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1043 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
1044 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
1045 column is padded with zeros.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1046 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1047 @item [@var{nr}, @var{nc}]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1048 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
1049 @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
1050 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
1051 @end table\n\
2122
91d802f77456 [project @ 1996-05-12 07:08:38 by jwe]
jwe
parents: 2116
diff changeset
1052 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1053 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1054 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
1055 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1056 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
1057 conversions.\n\
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1058 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1059 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
1060 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1061 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
1062 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
1063 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
1064 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
1065 conversions is returned in @var{count}\n\
5653
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1066 @ifclear OCTAVE_MANUAL\n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1067 \n\
ab9a339fcec8 [project @ 2006-03-09 17:28:13 by jwe]
jwe
parents: 5642
diff changeset
1068 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
1069 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
1070 @end ifclear\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1071 @seealso{scanf, sscanf, fread, fprintf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1072 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1073 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1074 static std::string who = "fscanf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1075
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1076 octave_value_list retval;
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1077
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1078 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1079
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1080 if (nargin == 3 && args(2).is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1081 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1082 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
1083
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1084 if (! error_state)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1085 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1086 if (args(1).is_string ())
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5275
diff changeset
1087 retval = os.oscanf (args(1), who);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1088 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1089 ::error ("%s: format must be a string", who.c_str ());
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1090 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1091 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1092 else
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1093 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1094 retval (1) = 0.0;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1095 retval (0) = Matrix ();
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1096
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1097 if (nargin == 2 || nargin == 3)
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1098 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1099 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
1100
3342
d8d3700fb4ab [project @ 1999-11-05 16:55:17 by jwe]
jwe
parents: 3341
diff changeset
1101 if (! error_state)
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1102 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1103 if (args(1).is_string ())
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1104 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5144
diff changeset
1105 octave_idx_type count = 0;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1106
3810
f19f00339363 [project @ 2001-03-29 21:03:01 by jwe]
jwe
parents: 3775
diff changeset
1107 Array<double> size = (nargin == 3)
4102
cbac6756967e [project @ 2002-10-14 20:16:44 by jwe]
jwe
parents: 4101
diff changeset
1108 ? args(2).vector_value ()
cbac6756967e [project @ 2002-10-14 20:16:44 by jwe]
jwe
parents: 4101
diff changeset
1109 : Array<double> (1, lo_ieee_inf_value ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1110
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1111 if (! error_state)
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1112 {
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5275
diff changeset
1113 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
1114
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1115 retval(1) = count;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1116 retval(0) = tmp;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1117 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1118 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1119 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1120 ::error ("%s: format must be a string", who.c_str ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1121 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1122 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1123 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1124 print_usage ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1125 }
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1126
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1127 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1128 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1129
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1130 DEFUN (sscanf, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1131 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1132 @deftypefn {Built-in Function} {[@var{val}, @var{count}] =} sscanf (@var{string}, @var{template}, @var{size})\n\
3491
2c7524ffdbf5 [project @ 2000-01-28 22:44:13 by jwe]
jwe
parents: 3458
diff changeset
1133 @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
1134 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
1135 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
1136 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
1137 @seealso{fscanf, scanf, sprintf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1138 @end deftypefn")
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1139 {
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1140 static std::string who = "sscanf";
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1141
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1142 octave_value_list retval;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1143
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1144 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1145
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1146 if (nargin == 3 && args(2).is_string ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1147 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1148 if (args(0).is_string ())
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1149 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1150 std::string data = args(0).string_value ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1151
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1152 octave_stream os = octave_istrstream::create (data);
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1153
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1154 if (os.is_valid ())
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1155 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1156 if (args(1).is_string ())
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5275
diff changeset
1157 retval = os.oscanf (args(1), who);
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1158 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1159 ::error ("%s: format must be a string", who.c_str ());
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1160 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1161 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1162 ::error ("%s: unable to create temporary input buffer",
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1163 who.c_str ());
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1164 }
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1165 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1166 ::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
1167 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1168 else
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1169 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1170 if (nargin == 2 || nargin == 3)
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1171 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1172 retval(3) = -1.0;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1173 retval(2) = "unknown error";
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1174 retval(1) = 0.0;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1175 retval(0) = Matrix ();
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1176
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1177 if (args(0).is_string ())
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1178 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1179 std::string data = args(0).string_value ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1180
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1181 octave_stream os = octave_istrstream::create (data);
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1182
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1183 if (os.is_valid ())
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1184 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1185 if (args(1).is_string ())
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1186 {
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5144
diff changeset
1187 octave_idx_type count = 0;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1188
3810
f19f00339363 [project @ 2001-03-29 21:03:01 by jwe]
jwe
parents: 3775
diff changeset
1189 Array<double> size = (nargin == 3)
f19f00339363 [project @ 2001-03-29 21:03:01 by jwe]
jwe
parents: 3775
diff changeset
1190 ? args(2).vector_value ()
4102
cbac6756967e [project @ 2002-10-14 20:16:44 by jwe]
jwe
parents: 4101
diff changeset
1191 : Array<double> (1, lo_ieee_inf_value ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1192
5279
bd32f770c09a [project @ 2005-04-12 21:55:31 by jwe]
jwe
parents: 5275
diff changeset
1193 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
1194
5775
ace8d8d26933 [project @ 2006-04-24 19:13:06 by jwe]
jwe
parents: 5749
diff changeset
1195 // FIXME -- is this the right thing to do?
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1196 // Extract error message first, because getting
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1197 // position will clear it.
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1198 std::string errmsg = os.error ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1199
4254
df5f2e433a11 [project @ 2002-12-31 19:43:07 by jwe]
jwe
parents: 4233
diff changeset
1200 retval(3) = os.tell () + 1;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1201 retval(2) = errmsg;
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1202 retval(1) = count;
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1203 retval(0) = tmp;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1204 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1205 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1206 ::error ("%s: format must be a string", who.c_str ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1207 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1208 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1209 ::error ("%s: unable to create temporary input buffer",
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1210 who.c_str ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1211 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1212 else
4468
efb6301dae80 [project @ 2003-07-15 19:18:20 by jwe]
jwe
parents: 4388
diff changeset
1213 ::error ("%s: first argument must be a string", who.c_str ());
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1214 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1215 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1216 print_usage ();
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1217 }
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1218
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1219 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1220 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1221
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1222 DEFUN (scanf, args, nargout,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1223 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1224 @deftypefn {Built-in Function} {[@var{val}, @var{count}] =} scanf (@var{template}, @var{size})\n\
3491
2c7524ffdbf5 [project @ 2000-01-28 22:44:13 by jwe]
jwe
parents: 3458
diff changeset
1225 @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
1226 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
1227 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1228 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
1229 programs.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1230 @seealso{fscanf, sscanf, printf}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1231 @end deftypefn")
2215
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1232 {
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1233 int nargin = args.length ();
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1234
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1235 octave_value_list tmp_args (nargin+1, octave_value ());
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1236
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1237 tmp_args (0) = 0.0;
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1238 for (int i = 0; i < nargin; i++)
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1239 tmp_args (i+1) = args (i);
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1240
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1241 return Ffscanf (tmp_args, nargout);
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1242 }
ab0e1fd337f5 [project @ 1996-05-16 15:56:40 by jwe]
jwe
parents: 2189
diff changeset
1243
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1244 static octave_value
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1245 do_fread (octave_stream& os, const octave_value& size_arg,
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1246 const octave_value& prec_arg, const octave_value& skip_arg,
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5144
diff changeset
1247 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
1248 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1249 octave_value retval;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1250
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1251 count = -1;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1252
3810
f19f00339363 [project @ 2001-03-29 21:03:01 by jwe]
jwe
parents: 3775
diff changeset
1253 Array<double> size = size_arg.vector_value ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1254
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1255 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1256 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1257 std::string prec = prec_arg.string_value ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1258
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1259 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1260 {
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1261 int block_size = 1;
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1262 oct_data_conv::data_type input_type;
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1263 oct_data_conv::data_type output_type;
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1264
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1265 oct_data_conv::string_to_data_type (prec, block_size,
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1266 input_type, output_type);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1267
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1268 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1269 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1270 int skip = skip_arg.int_value (true);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1271
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1272 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1273 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1274 std::string arch = arch_arg.string_value ();
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1275
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1276 if (! error_state)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1277 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1278 oct_mach_info::float_format flt_fmt
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1279 = oct_mach_info::string_to_float_format (arch);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1280
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1281 if (! error_state)
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1282 retval = os.read (size, block_size, input_type,
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1283 output_type, skip, flt_fmt, count);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1284 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1285 else
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1286 ::error ("fread: architecture type must be a string");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1287 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1288 else
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1289 ::error ("fread: skip must be an integer");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1290 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1291 else
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1292 ::error ("fread: invalid data type specified");
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1293 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1294 else
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1295 ::error ("fread: precision must be a string");
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 else
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1298 ::error ("fread: invalid size specified");
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1299
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1300 return retval;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1301 }
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 DEFUN (fread, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1304 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1305 @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
1306 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
1307 @var{fid}.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1308 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1309 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
1310 and may be one of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1311 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1312 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1313 @item Inf\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1314 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
1315 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1316 @item @var{nr}\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1317 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
1318 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1319 @item [@var{nr}, Inf]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1320 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
1321 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
1322 column is padded with zeros.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1323 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1324 @item [@var{nr}, @var{nc}]\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1325 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
1326 @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
1327 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
1328 @end table\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1329 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1330 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1331 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
1332 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1333 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
1334 data to read and may be one of\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1335 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1336 @table @code\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1337 @item \"schar\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1338 @itemx \"signed char\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1339 Signed character.\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1340 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1341 @item \"uchar\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1342 @itemx \"unsigned char\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1343 Unsigned character.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1344 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1345 @item \"int8\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1346 @itemx \"integer*1\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1347 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1348 8-bit signed integer.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1349 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1350 @item \"int16\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1351 @itemx \"integer*2\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1352 16-bit signed integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1353 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1354 @item \"int32\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1355 @itemx \"integer*4\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1356 32-bit signed integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1357 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1358 @item \"int64\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1359 @itemx \"integer*8\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1360 64-bit signed integer.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1361 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1362 @item \"uint8\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1363 8-bit unsigned integer.\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1364 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1365 @item \"uint16\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1366 16-bit unsigned integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1367 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1368 @item \"uint32\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1369 32-bit unsigned integer.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1370 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1371 @item \"uint64\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1372 64-bit unsigned integer.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1373 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1374 @item \"single\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1375 @itemx \"float32\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1376 @itemx \"real*4\"\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1377 32-bit floating point number.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1378 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1379 @item \"double\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1380 @itemx \"float64\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1381 @itemx \"real*8\"\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1382 64-bit floating point number.\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1383 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1384 @item \"char\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1385 @itemx \"char*1\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1386 Single character.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1387 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1388 @item \"short\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1389 Short integer (size is platform dependent).\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1390 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1391 @item \"int\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1392 Integer (size is platform dependent).\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1393 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1394 @item \"long\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1395 Long integer (size is platform dependent).\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1396 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1397 @item \"ushort\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1398 @itemx \"unsigned short\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1399 Unsigned short integer (size is platform dependent).\n\
4610
02d2fcf835fc [project @ 2003-11-14 17:08:59 by jwe]
jwe
parents: 4594
diff changeset
1400 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1401 @item \"uint\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1402 @itemx \"unsigned int\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1403 Unsigned integer (size is platform dependent).\n\
4610
02d2fcf835fc [project @ 2003-11-14 17:08:59 by jwe]
jwe
parents: 4594
diff changeset
1404 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1405 @item \"ulong\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1406 @itemx \"unsigned long\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1407 Unsigned long integer (size is platform dependent).\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1408 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1409 @item \"float\"\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1410 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
1411 @end table\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1412 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1413 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1414 The default precision is @code{\"uchar\"}.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1415 \n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1416 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
1417 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
1418 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
1419 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
1420 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1421 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
1422 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
1423 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
1424 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
1425 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
1426 \n\
7096
81bed50b9feb [project @ 2007-11-02 16:13:43 by jwe]
jwe
parents: 7078
diff changeset
1427 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
1428 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
1429 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
1430 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
1431 precision values.\n\
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1432 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1433 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
1434 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
1435 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
1436 complete, the final skip is omitted. For example,\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1437 \n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1438 @example\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1439 fread (f, 10, \"3*single=>single\", 8)\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1440 @end example\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 @noindent\n\
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1443 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
1444 a complete block of 3 values.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1445 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1446 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
1447 for the file. Valid values are\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1448 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1449 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1450 @item \"native\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1451 The format of the current machine.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1452 \n\
4546
a4796ccde726 [project @ 2003-10-24 18:58:22 by jwe]
jwe
parents: 4537
diff changeset
1453 @item \"ieee-be\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1454 IEEE big endian.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1455 \n\
4546
a4796ccde726 [project @ 2003-10-24 18:58:22 by jwe]
jwe
parents: 4537
diff changeset
1456 @item \"ieee-le\"\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1457 IEEE little endian.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1458 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1459 @item \"vaxd\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1460 VAX D floating format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1461 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1462 @item \"vaxg\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1463 VAX G floating format.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1464 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1465 @item \"cray\"\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1466 Cray floating format.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1467 @end table\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1468 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1469 @noindent\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1470 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
1471 @code{\"ieee-le\"} formats.\n\
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1472 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1473 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
1474 values read is returned in @code{count}\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1475 @seealso{fwrite, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1476 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1477 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1478 octave_value_list retval;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1479
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1480 int nargin = args.length ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1481
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1482 if (nargin > 0 && nargin < 6)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1483 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1484 retval(1) = -1.0;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1485 retval(0) = Matrix ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1486
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1487 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
1488
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1489 if (! error_state)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1490 {
4257
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1491 octave_value size = lo_ieee_inf_value ();
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1492 octave_value prec = "uchar";
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1493 octave_value skip = 0;
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1494 octave_value arch = "unknown";
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1495
4257
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1496 int idx = 1;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1497
4257
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1498 if (nargin > 1 && ! args(idx).is_string ())
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1499 size = args(idx++);
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1500
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1501 if (nargin > idx)
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1502 prec = args(idx++);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1503
4257
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1504 if (nargin > idx)
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1505 skip = args(idx++);
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1506
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1507 if (nargin > idx)
e556870ce8f0 [project @ 2003-01-02 03:14:41 by jwe]
jwe
parents: 4254
diff changeset
1508 arch = args(idx++);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1509
5275
23b37da9fd5b [project @ 2005-04-08 16:07:35 by jwe]
jwe
parents: 5144
diff changeset
1510 octave_idx_type count = -1;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1511
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1512 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
1513
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1514 retval(1) = count;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1515 retval(0) = tmp;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1516 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1517 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1518 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1519 print_usage ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1520
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1521 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1522 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1523
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1524 static int
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1525 do_fwrite (octave_stream& os, const octave_value& data,
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1526 const octave_value& prec_arg, const octave_value& skip_arg,
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1527 const octave_value& arch_arg)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1528 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1529 int retval = -1;
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1530
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1531 std::string prec = prec_arg.string_value ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1532
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1533 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1534 {
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1535 int block_size = 1;
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1536 oct_data_conv::data_type output_type;
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1537
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1538 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
1539
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1540 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1541 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1542 int skip = skip_arg.int_value (true);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1543
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1544 if (! error_state)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1545 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1546 std::string arch = arch_arg.string_value ();
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1547
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1548 if (! error_state)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1549 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1550 oct_mach_info::float_format flt_fmt
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1551 = oct_mach_info::string_to_float_format (arch);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1552
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1553 if (! error_state)
4944
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1554 retval = os.write (data, block_size, output_type,
44046bbaa52c [project @ 2004-08-31 05:30:46 by jwe]
jwe
parents: 4933
diff changeset
1555 skip, flt_fmt);
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1556 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1557 else
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1558 ::error ("fwrite: architecture type must be a string");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1559 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1560 else
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1561 ::error ("fwrite: skip must be an integer");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1562 }
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1563 else
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
1564 ::error ("fwrite: invalid precision specified");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1565 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1566 else
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1567 ::error ("fwrite: precision must be a string");
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1568
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1569 return retval;
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
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1572 DEFUN (fwrite, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1573 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1574 @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
1575 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
1576 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
1577 file.\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1578 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1579 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
1580 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
1581 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1582 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
1583 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
1584 \n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1585 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
1586 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
1587 @seealso{fread, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1588 @end deftypefn")
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1589 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1590 octave_value retval = -1;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1591
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1592 int nargin = args.length ();
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1593
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1594 if (nargin > 1 && nargin < 6)
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1595 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1596 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
1597
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1598 if (! error_state)
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1599 {
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1600 octave_value data = args(1);
2318
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1601
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1602 octave_value prec = (nargin > 2)
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1603 ? args(2) : octave_value ("uchar");
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1604
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1605 octave_value skip = (nargin > 3)
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1606 ? args(3) : octave_value (0.0);
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1607
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1608 octave_value arch = (nargin > 4)
31e7eb125d89 [project @ 1996-07-14 22:44:50 by jwe]
jwe
parents: 2237
diff changeset
1609 ? args(4) : octave_value ("unknown");
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1610
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1611 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
1612
60ae49e1284f [project @ 1997-03-25 23:17:36 by jwe]
jwe
parents: 2802
diff changeset
1613 retval = status;
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1614 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1615 }
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1616 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1617 print_usage ();
2116
99658f9b74c8 [project @ 1996-05-10 07:20:15 by jwe]
jwe
parents: 2095
diff changeset
1618
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1619 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1620 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1621
5906
bdf16e1564e1 [project @ 2006-07-27 03:07:14 by jwe]
jwe
parents: 5823
diff changeset
1622 DEFUNX ("feof", Ffeof, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1623 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1624 @deftypefn {Built-in Function} {} feof (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1625 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
1626 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
1627 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
1628 result in an end-of-file condition.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1629 @seealso{fread, fopen, fclose}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1630 @end deftypefn")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1631 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1632 octave_value retval = -1;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1633
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1634 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1635
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1636 if (nargin == 1)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1637 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1638 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
1639
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1640 if (! error_state)
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1641 retval = os.eof () ? 1.0 : 0.0;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1642 }
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1643 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1644 print_usage ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1645
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1646 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1647 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1648
5906
bdf16e1564e1 [project @ 2006-07-27 03:07:14 by jwe]
jwe
parents: 5823
diff changeset
1649 DEFUNX ("ferror", Fferror, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1650 "-*- texinfo -*-\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1651 @deftypefn {Built-in Function} {} ferror (@var{fid})\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1652 Return 1 if an error condition has been encountered for a given file\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1653 and 0 otherwise. Note that it will only return 1 if an error has\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1654 already been encountered, not if the next operation will result in an\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1655 error condition.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1656 @end deftypefn")
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1657 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1658 octave_value_list retval;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1659
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1660 int nargin = args.length ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1661
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1662 if (nargin == 1 || nargin == 2)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1663 {
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1664 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
1665
3341
14cfc9475fe4 [project @ 1999-11-05 08:11:58 by jwe]
jwe
parents: 3340
diff changeset
1666 if (! error_state)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1667 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1668 bool clear = false;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1669
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1670 if (nargin == 2)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1671 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1672 std::string opt = args(1).string_value ();
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1673
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1674 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1675 clear = (opt == "clear");
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1676 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1677 return retval;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1678 }
1755
3a9462b655f1 [project @ 1996-01-22 04:47:22 by jwe]
jwe
parents: 1750
diff changeset
1679
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1680 int error_number = 0;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1681
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1682 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
1683
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1684 retval(1) = error_number;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1685 retval(0) = error_message;
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1686 }
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1687 }
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1688 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1689 print_usage ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1690
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1691 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1692 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1693
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
1694 DEFUN (popen, args, ,
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1695 "-*- texinfo -*-\n\
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1696 @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
1697 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
1698 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
1699 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
1700 @var{mode} may be\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1701 \n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1702 @table @code\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1703 @item \"r\"\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1704 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
1705 open for reading.\n\
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1706 \n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1707 @item \"w\"\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1708 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
1709 open for writing.\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1710 @end table\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1711 \n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1712 For example,\n\
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1713 \n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1714 @example\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1715 @group\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1716 fid = popen (\"ls -ltr / | tail -3\", \"r\");\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1717 while (isstr (s = fgets (fid)))\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1718 fputs (stdout, s);\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1719 endwhile\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1720 @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
1721 @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
1722 @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
1723 @end group\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1724 @end example\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1725 @end deftypefn")
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1726 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1727 octave_value retval = -1;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1728
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1729 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1730
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1731 if (nargin == 2)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1732 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1733 std::string name = args(0).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1734
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1735 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1736 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1737 std::string mode = args(1).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1738
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1739 if (! error_state)
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1740 {
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1741 if (mode == "r")
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1742 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1743 octave_stream ips = octave_iprocstream::create (name);
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1744
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1745 retval = octave_stream_list::insert (ips);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1746 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1747 else if (mode == "w")
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1748 {
3340
585a8809fd9b [project @ 1999-11-05 07:02:30 by jwe]
jwe
parents: 3321
diff changeset
1749 octave_stream ops = octave_oprocstream::create (name);
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1750
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1751 retval = octave_stream_list::insert (ops);
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1752 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1753 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1754 ::error ("popen: invalid mode specified");
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1755 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1756 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1757 ::error ("popen: mode must be a string");
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1758 }
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1759 else
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1760 ::error ("popen: name must be a string");
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1761 }
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1762 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1763 print_usage ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1764
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1765 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1766 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1767
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
1768 DEFUN (pclose, args, ,
3381
69b167451491 [project @ 1999-12-15 20:48:10 by jwe]
jwe
parents: 3372
diff changeset
1769 "-*- texinfo -*-\n\
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1770 @deftypefn {Built-in Function} {} pclose (@var{fid})\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1771 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
1772 use @code{fclose} for the same purpose.\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
1773 @end deftypefn")
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1774 {
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1775 octave_value retval = -1;
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1776
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1777 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1778
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1779 if (nargin == 1)
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
1780 retval = octave_stream_list::remove (args(0), "pclose");
1377
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
1781 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1782 print_usage ();
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1783
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1784 return retval;
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1785 }
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
1786
2458
d07a5d0b57e2 [project @ 1996-11-03 03:25:18 by jwe]
jwe
parents: 2442
diff changeset
1787 DEFUN (tmpnam, args, ,
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
1788 "-*- texinfo -*-\n\
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1789 @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
1790 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
1791 \n\
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1792 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
1793 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
1794 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
1795 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
1796 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
1797 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
1798 @seealso{tmpfile, mkstemp, P_tmpdir}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1799 @end deftypefn")
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1800 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1801 octave_value retval;
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1802
2936
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1803 int len = args.length ();
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1804
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1805 if (len < 3)
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1806 {
3523
b80bbb43a1a9 [project @ 2000-02-02 10:25:52 by jwe]
jwe
parents: 3503
diff changeset
1807 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
1808
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1809 if (! error_state)
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1810 {
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1811 std::string pfx
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1812 = len > 1 ? args(1).string_value () : std::string ("oct-");
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1813
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1814 if (! error_state)
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1815 retval = file_ops::tempnam (dir, pfx);
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1816 else
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1817 ::error ("expecting second argument to be a string");
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1818 }
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1819 else
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
1820 ::error ("expecting first argument to be a string");
2936
87cb7614257d [project @ 1997-05-06 05:46:00 by jwe]
jwe
parents: 2926
diff changeset
1821 }
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1822 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1823 print_usage ();
1802
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1824
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1825 return retval;
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1826 }
8173b1fa052d [project @ 1996-01-29 06:10:18 by jwe]
jwe
parents: 1799
diff changeset
1827
2458
d07a5d0b57e2 [project @ 1996-11-03 03:25:18 by jwe]
jwe
parents: 2442
diff changeset
1828 DEFALIAS (octave_tmp_file_name, tmpnam);
d07a5d0b57e2 [project @ 1996-11-03 03:25:18 by jwe]
jwe
parents: 2442
diff changeset
1829
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1830 DEFUN (tmpfile, args, ,
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1831 "-*- texinfo -*-\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1832 @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
1833 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
1834 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
1835 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
1836 exits.\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1837 \n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1838 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
1839 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
1840 system-dependent error message.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1841 @seealso{tmpnam, mkstemp, P_tmpdir}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1842 @end deftypefn")
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1843 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1844 octave_value_list retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1845
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1846 retval(1) = std::string ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1847 retval(0) = -1;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1848
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1849 int nargin = args.length ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1850
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1851 if (nargin == 0)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1852 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1853 FILE *fid = tmpfile ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1854
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1855 if (fid)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1856 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1857 std::string nm;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1858
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1859 std::ios::openmode md = fopen_mode_to_ios_mode ("w+b");
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1860
4327
c29c382a5b4b [project @ 2003-02-16 03:24:26 by jwe]
jwe
parents: 4326
diff changeset
1861 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
1862
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1863 if (s)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1864 retval(0) = octave_stream_list::insert (s);
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1865 else
4327
c29c382a5b4b [project @ 2003-02-16 03:24:26 by jwe]
jwe
parents: 4326
diff changeset
1866 error ("tmpfile: failed to create octave_stdiostream object");
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1867
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1868 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1869 else
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1870 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1871 using namespace std;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1872 retval(1) = ::strerror (errno);
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1873 retval(0) = -1;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1874 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1875 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1876 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1877 print_usage ();
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1878
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1879 return retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1880 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1881
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1882 DEFUN (mkstemp, args, ,
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1883 "-*- texinfo -*-\n\
5109
1e36493572a0 [project @ 2005-01-18 20:17:53 by jwe]
jwe
parents: 5102
diff changeset
1884 @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
1885 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
1886 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
1887 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
1888 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
1889 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
1890 will be 0600 for versions of glibc 2.0.7 and later). The file is opened\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1891 with the @code{O_EXCL} flag.\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1892 \n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1893 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
1894 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
1895 the function @code{purge_tmp_files} is called.\n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1896 \n\
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1897 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
1898 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
1899 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
1900 error message.\n\
5642
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1901 @seealso{tmpfile, tmpnam, P_tmpdir}\n\
2618a0750ae6 [project @ 2006-03-06 21:26:48 by jwe]
jwe
parents: 5421
diff changeset
1902 @end deftypefn")
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1903 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1904 octave_value_list retval;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1905
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1906 retval(2) = std::string ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1907 retval(1) = std::string ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1908 retval(0) = -1;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1909
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1910 #if defined (HAVE_MKSTEMP)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1911
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1912 int nargin = args.length ();
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1913
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1914 if (nargin == 1 || nargin == 2)
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 std::string tmpl8 = args(0).string_value ();
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 (! error_state)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1919 {
4354
dfd47756dda7 [project @ 2003-02-21 21:42:02 by jwe]
jwe
parents: 4341
diff changeset
1920 OCTAVE_LOCAL_BUFFER (char, tmp, tmpl8.size () + 1);
dfd47756dda7 [project @ 2003-02-21 21:42:02 by jwe]
jwe
parents: 4341
diff changeset
1921 strcpy (tmp, tmpl8.c_str ());
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1922
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1923 int fd = mkstemp (tmp);
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1924
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1925 if (fd < 0)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1926 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1927 using namespace std;
5109
1e36493572a0 [project @ 2005-01-18 20:17:53 by jwe]
jwe
parents: 5102
diff changeset
1928 retval(2) = ::strerror (errno);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1929 retval(0) = fd;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1930 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1931 else
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1932 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1933 const char *fopen_mode = "w+";
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1934
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1935 FILE *fid = fdopen (fd, fopen_mode);
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1936
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1937 if (fid)
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1938 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1939 std::string nm = tmp;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1940
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1941 std::ios::openmode md = fopen_mode_to_ios_mode (fopen_mode);
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1942
4327
c29c382a5b4b [project @ 2003-02-16 03:24:26 by jwe]
jwe
parents: 4326
diff changeset
1943 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
1944
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1945 if (s)
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 retval(1) = nm;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1948 retval(0) = octave_stream_list::insert (s);
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1949
5401
f654f94c46af [project @ 2005-07-05 16:29:22 by jwe]
jwe
parents: 5370
diff changeset
1950 if (nargin == 2 && args(1).is_true ())
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1951 mark_for_deletion (nm);
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1952 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1953 else
4327
c29c382a5b4b [project @ 2003-02-16 03:24:26 by jwe]
jwe
parents: 4326
diff changeset
1954 error ("mkstemp: failed to create octave_stdiostream object");
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1955 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1956 else
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1957 {
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1958 using namespace std;
5109
1e36493572a0 [project @ 2005-01-18 20:17:53 by jwe]
jwe
parents: 5102
diff changeset
1959 retval(2) = ::strerror (errno);
4326
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1960 retval(0) = -1;
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1961 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1962 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1963 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1964 else
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1965 error ("mkstemp: expecting string as first argument");
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1966 }
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1967 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
1968 print_usage ();
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 #else
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1971 retval(2) = "mkstemp: not supported on this sytem";
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1972 #endif
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1973
1cae4472c624 [project @ 2003-02-15 23:14:47 by jwe]
jwe
parents: 4267
diff changeset
1974 return retval;
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
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1977 static int
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1978 convert (int x, int ibase, int obase)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1979 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1980 int retval = 0;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1981
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1982 int tmp = x % obase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1983
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1984 if (tmp > ibase - 1)
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1985 ::error ("umask: invalid digit");
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1986 else
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1987 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1988 retval = tmp;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1989 int mult = ibase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1990 while ((x = (x - tmp) / obase))
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1991 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1992 tmp = x % obase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1993 if (tmp > ibase - 1)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1994 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
1995 ::error ("umask: invalid digit");
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1996 break;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1997 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1998 retval += mult * tmp;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
1999 mult *= ibase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2000 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2001 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2002
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2003 return retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2004 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2005
1957
0e6a0a271998 [project @ 1996-02-15 01:08:15 by jwe]
jwe
parents: 1884
diff changeset
2006 DEFUN (umask, args, ,
3301
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
2007 "-*- texinfo -*-\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
2008 @deftypefn {Built-in Function} {} umask (@var{mask})\n\
02866242d3ae [project @ 1999-10-20 04:10:46 by jwe]
jwe
parents: 3263
diff changeset
2009 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
2010 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
2011 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
2012 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
2013 @end deftypefn")
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2014 {
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
2015 octave_value_list retval;
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2016
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2017 int status = 0;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2018
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2019 if (args.length () == 1)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2020 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2021 int mask = args(0).int_value (true);
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2022
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2023 if (! error_state)
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2024 {
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2025 if (mask < 0)
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2026 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2027 status = -1;
2095
36903d507b0e [project @ 1996-04-28 09:00:07 by jwe]
jwe
parents: 1996
diff changeset
2028 ::error ("umask: MASK must be a positive integer value");
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2029 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2030 else
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2031 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2032 int oct_mask = convert (mask, 8, 10);
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2033
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2034 if (! error_state)
2926
66ef74ee5d9f [project @ 1997-05-05 03:20:52 by jwe]
jwe
parents: 2902
diff changeset
2035 status = convert (file_ops::umask (oct_mask), 10, 8);
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2036 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2037 }
3202
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2038 else
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2039 {
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2040 status = -1;
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2041 ::error ("umask: expecting integer argument");
44d82b369c78 [project @ 1998-10-29 20:27:57 by jwe]
jwe
parents: 3180
diff changeset
2042 }
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2043 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2044 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2045 print_usage ();
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2046
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2047 if (status >= 0)
4233
ccfdb55c8156 [project @ 2002-12-20 22:43:54 by jwe]
jwe
parents: 4102
diff changeset
2048 retval(0) = status;
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2049
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2050 return retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2051 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2052
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2053 static octave_value
6483
d00da2148c53 [project @ 2007-04-04 02:58:48 by jwe]
jwe
parents: 6456
diff changeset
2054 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
2055 {
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2056 octave_value retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2057
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2058 int nargin = args.length ();
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2059
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2060 if (nargin == 0)
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2061 retval = val;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2062 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2063 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2064
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2065 return retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2066 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2067
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2068 #if ! defined (P_tmpdir)
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2069 #define P_tmpdir "/tmp"
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2070 #endif
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2071
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2072 DEFUNX ("P_tmpdir", FP_tmpdir, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2073 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2074 @deftypefn {Built-in Function} {} P_tmpdir ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2075 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
2076 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
2077 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2078 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2079 octave_value retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2080
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2081 int nargin = args.length ();
4267
7cd865a8c815 [project @ 2003-01-03 15:27:05 by jwe]
jwe
parents: 4257
diff changeset
2082
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2083 if (nargin == 0)
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2084 retval = P_tmpdir;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2085 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2086 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2087
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2088 return retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2089 }
2341
6ee55c0f25a9 [project @ 1996-07-24 10:33:09 by jwe]
jwe
parents: 2324
diff changeset
2090
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2091 // 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
2092 // this way for Matlab compatibility.
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2093
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2094 DEFUNX ("SEEK_SET", FSEEK_SET, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2095 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2096 @deftypefn {Built-in Function} {} SEEK_SET ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2097 @deftypefnx {Built-in Function} {} SEEK_CUR ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2098 @deftypefnx {Built-in Function} {} SEEK_END ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2099 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
2100 one of the following actions:\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2101 @table @code\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2102 @item SEEK_SET\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2103 Position file relative to the beginning.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2104 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2105 @item SEEK_CUR\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2106 Position file relative to the current position.\n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2107 \n\
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2108 @item SEEK_END\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2109 Position file relative to the end.\n\
3372
f16c2ce14886 [project @ 1999-11-23 19:07:09 by jwe]
jwe
parents: 3342
diff changeset
2110 @end table\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2111 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2112 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2113 return const_value ("SEEK_SET", args, -1);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2114 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2115
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2116 DEFUNX ("SEEK_CUR", FSEEK_CUR, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2117 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2118 @deftypefn {Built-in Function} {} SEEK_CUR ()\n\
3458
d25bc039237b [project @ 2000-01-19 09:36:14 by jwe]
jwe
parents: 3448
diff changeset
2119 See SEEK_SET.\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2120 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2121 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2122 return const_value ("SEEK_CUR", args, 0);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2123 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2124
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2125 DEFUNX ("SEEK_END", FSEEK_END, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2126 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2127 @deftypefn {Built-in Function} {} SEEK_END ()\n\
3458
d25bc039237b [project @ 2000-01-19 09:36:14 by jwe]
jwe
parents: 3448
diff changeset
2128 See SEEK_SET.\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2129 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2130 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2131 return const_value ("SEEK_END", args, 1);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2132 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2133
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2134 static octave_value
6483
d00da2148c53 [project @ 2007-04-04 02:58:48 by jwe]
jwe
parents: 6456
diff changeset
2135 const_value (const char *, const octave_value_list& args,
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2136 const octave_value& val)
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2137 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2138 octave_value retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2139
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2140 int nargin = args.length ();
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2141
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2142 if (nargin == 0)
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2143 retval = val;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2144 else
5823
080c08b192d8 [project @ 2006-05-19 05:32:17 by jwe]
jwe
parents: 5775
diff changeset
2145 print_usage ();
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2146
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2147 return retval;
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2148 }
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2149
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2150 DEFUNX ("stdin", Fstdin, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2151 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2152 @deftypefn {Built-in Function} {} stdin ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2153 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
2154 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
2155 line editing functions.\n\
5333
ac8d64b9e76a [project @ 2005-05-02 18:15:20 by jwe]
jwe
parents: 5325
diff changeset
2156 @seealso{stdout, stderr}\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2157 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2158 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2159 return const_value ("stdin", args, stdin_file);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2160 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2161
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2162 DEFUNX ("stdout", Fstdout, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2163 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2164 @deftypefn {Built-in Function} {} stdout ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2165 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
2166 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
2167 @seealso{stdin, stderr}\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2168 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2169 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2170 return const_value ("stdout", args, stdout_file);
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2171 }
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2172
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2173 DEFUNX ("stderr", Fstderr, args, ,
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2174 "-*- texinfo -*-\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2175 @deftypefn {Built-in Function} {} stderr ()\n\
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2176 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
2177 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
2178 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
2179 @seealso{stdin, stdout}\n\
5749
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2180 @end deftypefn")
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2181 {
26beffa9f66f [project @ 2006-04-07 20:35:07 by jwe]
jwe
parents: 5653
diff changeset
2182 return const_value ("stderr", args, stderr_file);
2189
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2183 }
d01936305d99 [project @ 1996-05-14 03:31:57 by jwe]
jwe
parents: 2148
diff changeset
2184
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
2185 /*
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2186 ;;; Local Variables: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2187 ;;; mode: C++ ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2188 ;;; End: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2189 */