annotate src/file-io.cc @ 1453:8fc8679401bf

[project @ 1995-09-20 04:32:11 by jwe]
author jwe
date Wed, 20 Sep 1995 04:34:02 +0000
parents 29f274b42cb1
children 2f85a175308f
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1 // file-io.cc -*- C++ -*-
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2 /*
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3
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4 Copyright (C) 1993, 1994, 1995 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 2, or (at your option) any
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11 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, write to the Free
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20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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21
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22 */
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23
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24 // 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 following functions:
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27 //
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28 // popen pclose execute sync_system async_system
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29 // waitpid mkfifo unlink
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32 #ifdef HAVE_CONFIG_H
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33 #include <config.h>
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34 #endif
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35
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36 #include <cstring>
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37 #include <cstdio>
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38 #include <cerrno>
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39 #include <cstdlib>
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40 #include <cctype>
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41
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42 #include <strstream.h>
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43
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44 #ifdef HAVE_UNISTD_H
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45 #include <sys/types.h>
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46 #include <unistd.h>
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47 #endif
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49 #include <fcntl.h>
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50
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51 #include <DLList.h>
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52
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53 #include "dMatrix.h"
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55 #include "defun.h"
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56 #include "error.h"
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57 #include "file-info.h"
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58 #include "file-io.h"
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59 #include "help.h"
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60 #include "input.h"
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61 #include "mappers.h"
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62 #include "oct-map.h"
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63 #include "octave-hist.h"
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64 #include "pager.h"
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65 #include "statdefs.h"
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66 #include "sysdep.h"
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67 #include "syswait.h"
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68 #include "tree-const.h"
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69 #include "utils.h"
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70 #include "variables.h"
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71
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72 extern "C"
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73 {
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74 #include <readline/tilde.h>
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76 extern void mode_string ();
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77 }
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78
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79 // keeps a count of args sent to printf or scanf
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80 static int fmt_arg_count = 0;
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81
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82 // double linked list containing relevant information about open files
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83 static DLList <file_info> file_list;
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84
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85 void
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86 initialize_file_io (void)
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87 {
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88 file_info octave_stdin (0, "stdin", stdin, "r");
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89 file_info octave_stdout (1, "stdout", stdout, "w");
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90 file_info octave_stderr (2, "stderr", stderr, "w");
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91
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92 file_list.append (octave_stdin);
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93 file_list.append (octave_stdout);
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94 file_list.append (octave_stderr);
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95 }
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96
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97 // Given a file name or number, return a pointer to the corresponding
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98 // open file. If the file has not already been opened, return NULL.
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99
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100 Pix
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101 return_valid_file (const tree_constant& arg)
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102 {
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103 if (arg.is_string ())
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104 {
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105 Pix p = file_list.first ();
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106 file_info file;
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107 int file_count = file_list.length ();
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108 for (int i = 0; i < file_count; i++)
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109 {
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110 const char *file_name = arg.string_value ();
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111 file = file_list (p);
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112 if (file.name () == file_name)
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113 return p;
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114 file_list.next (p);
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115 }
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116 }
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117 else
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118 {
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119 double file_num = arg.double_value ();
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120
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121 if (! error_state)
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122 {
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123 if (D_NINT (file_num) != file_num)
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124 error ("file number not an integer value");
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125 else
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126 {
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127 Pix p = file_list.first ();
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128 file_info file;
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129 int file_count = file_list.length ();
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130 for (int i = 0; i < file_count; i++)
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131 {
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132 file = file_list (p);
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133 if (file.number () == file_num)
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134 return p;
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135 file_list.next (p);
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136 }
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137 error ("no file with that number");
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138 }
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139 }
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140 else
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141 error ("inapproriate file specifier");
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142 }
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143
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144 return 0;
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145 }
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146
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147 static Pix
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148 fopen_file_for_user (const char *name, const char *mode,
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149 const char *warn_for)
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150 {
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151 FILE *file_ptr = fopen (name, mode);
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152 if (file_ptr)
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153 {
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154 int file_number = file_list.length () + 1;
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155
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156 file_info file (file_number, name, file_ptr, mode);
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157 file_list.append (file);
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158
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diff changeset
159 Pix p = file_list.first ();
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
160 file_info file_from_list;
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
161 int file_count = file_list.length ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
162 for (int i = 0; i < file_count; i++)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
163 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
164 file_from_list = file_list (p);
1426
29f274b42cb1 [project @ 1995-09-19 03:41:32 by jwe]
jwe
parents: 1400
diff changeset
165 if (file_from_list.name () == name)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
166 return p;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
167 file_list.next (p);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
168 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
169 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
170
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
171 error ("%s: unable to open file `%s'", warn_for, name);
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
172
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
173 return 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
174 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
175
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
176 static Pix
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
177 file_io_get_file (const tree_constant& arg, const char *mode,
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
178 const char *warn_for)
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
179 {
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
180 Pix p = return_valid_file (arg);
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
181
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
182 if (! p)
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
183 {
610
14b2a186a5c0 [project @ 1994-08-14 00:55:49 by jwe]
jwe
parents: 598
diff changeset
184 if (arg.is_string ())
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
185 {
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
186 const char *name = arg.string_value ();
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
187
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
188 struct stat buffer;
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
189 int status = stat (name, &buffer);
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
190
372
c91ba20cd123 [project @ 1994-02-17 07:50:58 by jwe]
jwe
parents: 371
diff changeset
191 if (status == 0)
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
192 {
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
193 if ((buffer.st_mode & S_IFREG) == S_IFREG)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
194 p = fopen_file_for_user (name, mode, warn_for);
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
195 else
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
196 error ("%s: invalid file type", warn_for);
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
197 }
372
c91ba20cd123 [project @ 1994-02-17 07:50:58 by jwe]
jwe
parents: 371
diff changeset
198 else if (status < 0 && *mode != 'r')
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
199 p = fopen_file_for_user (name, mode, warn_for);
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
200 else
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
201 error ("%s: can't stat file `%s'", warn_for, name);
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
202 }
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
203 else
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
204 error ("%s: invalid file specifier", warn_for);
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
205 }
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
206
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
207 return p;
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
208 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
209
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
210 static Octave_object
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
211 fclose_internal (const Octave_object& args)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
212 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
213 Octave_object retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
214
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
215 Pix p = return_valid_file (args(0));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
216
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
217 if (! p)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
218 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
219
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
220 file_info file = file_list (p);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
221
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
222 if (file.number () < 3)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
223 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
224 warning ("fclose: can't close stdin, stdout, or stderr!");
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
225 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
226 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
227
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
228 int success = fclose (file.fptr ());
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
229 file_list.del (p);
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 if (success == 0)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
232 retval(0) = 1.0; // succeeded
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
233 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
234 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
235 error ("fclose: error on closing file");
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
236 retval(0) = 0.0; // failed
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
237 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
238
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
239 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
240 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
241
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
242 DEFUN ("fclose", Ffclose, Sfclose, 1, 1,
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
243 "fclose (FILENAME or FILENUM): close a file")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
244 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
245 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
246
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
247 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
248
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
249 if (nargin != 1)
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
250 print_usage ("fclose");
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
251 else
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
252 retval = fclose_internal (args);
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
253
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
254 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
255 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
256
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
257 static Octave_object
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
258 fflush_internal (const Octave_object& args)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
259 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
260 Octave_object retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
261
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
262 Pix p = return_valid_file (args(0));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
263
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
264 if (! p)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
265 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
266
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
267 file_info file = file_list (p);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
268
1426
29f274b42cb1 [project @ 1995-09-19 03:41:32 by jwe]
jwe
parents: 1400
diff changeset
269 if (file.mode () == "r")
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
270 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
271 warning ("can't flush an input stream");
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
272 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
273 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
274
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
275 int success = 0;
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
276
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
277 if (file.number () == 1)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
278 flush_output_to_pager ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
279 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
280 success = fflush (file.fptr ());
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
281
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
282 if (success == 0)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
283 retval(0) = 1.0; // succeeded
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
284 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
285 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
286 error ("fflush: write error");
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
287 retval(0) = 0.0; // failed
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
288 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
289
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
290 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
291 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
292
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
293 DEFUN ("fflush", Ffflush, Sfflush, 1, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
294 "fflush (FILENAME or FILENUM): flush buffered data to output file")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
295 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
296 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
297
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
298 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
299
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
300 if (nargin != 1)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
301 print_usage ("fflush");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
302 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
303 retval = fflush_internal (args);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
304
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
305 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
306 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
307
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
308 static int
164
e2c950dd96d2 [project @ 1993-10-18 19:32:00 by jwe]
jwe
parents: 66
diff changeset
309 valid_mode (const char *mode)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
310 {
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
311 if (mode)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
312 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
313 char m = mode[0];
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
314 if (m == 'r' || m == 'w' || m == 'a')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
315 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
316 m = mode[1];
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
317 return (m == '\0' || (m == '+' && mode[2] == '\0'));
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
318 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
319 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
320 return 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
321 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
322
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
323 static Octave_object
1339
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parents: 1338
diff changeset
324 fgets_internal (const Octave_object& args, int nargin, int nargout,
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diff changeset
325 int strip_final_newline = 0)
1
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326 {
497
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parents: 471
diff changeset
327 Octave_object retval;
1
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parents:
diff changeset
328
712
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diff changeset
329 Pix p = file_io_get_file (args(0), "r", "fgets");
1
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parents:
diff changeset
330
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
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parents: 506
diff changeset
331 if (! p)
368
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parents: 367
diff changeset
332 return retval;
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parents: 367
diff changeset
333
1339
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diff changeset
334 int length = 0;
1338
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parents: 1315
diff changeset
335
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parents: 1315
diff changeset
336 if (nargin == 2)
1
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parents:
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337 {
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diff changeset
338 double dlen = args(1).double_value ();
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339
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parents: 1315
diff changeset
340 if (error_state)
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341 return retval;
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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342
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
343 if (xisnan (dlen))
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
344 {
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
345 error ("fgets: NaN invalid as length");
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346 return retval;
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347 }
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348
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349 length = NINT (dlen);
1338
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350
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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351 if ((double) length != dlen)
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
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352 {
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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diff changeset
353 error ("fgets: length not an integer value");
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354 return retval;
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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355 }
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parents: 1315
diff changeset
356
1339
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357 if (length < 0)
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358 {
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parents: 1338
diff changeset
359 error ("fgets: length must be a nonnegative integer");
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360 return retval;
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361 }
1
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362 }
1339
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363
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364 file_info file = file_list (p);
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365 FILE *fileptr = file.fptr ();
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366
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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367 ostrstream buf;
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
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368 int c;
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369 int count = 0;
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parents: 1338
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370 int newline_stripped = 0;
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parents: 1338
diff changeset
371
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
372 if (nargin == 1 || length > 0)
1
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373 {
1339
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parents: 1338
diff changeset
374 while ((c = fgetc (fileptr)) != EOF)
1338
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diff changeset
375 {
1339
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diff changeset
376 count++;
1338
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parents: 1315
diff changeset
377 if (c == '\n')
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
378 {
1339
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parents: 1338
diff changeset
379 if (! strip_final_newline)
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
380 buf << (char) c;
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
381 else
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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diff changeset
382 newline_stripped = 1;
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parents: 1338
diff changeset
383
1338
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
384 break;
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
385 }
1339
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
386 else
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
387 buf << (char) c;
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parents: 1338
diff changeset
388
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
389 if (nargin == 2 && count == length)
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
390 break;
1338
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parents: 1315
diff changeset
391 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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parents:
diff changeset
392 }
1339
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parents: 1338
diff changeset
393
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
394 buf << ends;
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parents: 1338
diff changeset
395 char *string = buf.str ();
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
396
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
397 if (count)
1338
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
398 {
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
399 if (nargout == 2)
1339
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parents: 1338
diff changeset
400 retval(1) = (double) (count - newline_stripped);
1338
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
401
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
402 retval(0) = string;
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
403 }
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
404 else
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
405 retval(0) = -1.0;
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
406
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
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parents: 1315
diff changeset
407 delete [] string;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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parents:
diff changeset
408
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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parents:
diff changeset
409 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
410 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
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parents:
diff changeset
411
1339
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
412 DEFUN ("fgetl", Ffgetl, Sfgetl, 2, 2,
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
413 "[STRING, LENGTH] = fgetl (FILENAME or FILENUM [, LENGTH])\n\
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
414 \n\
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
415 read a string from a file")
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
416 {
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
417 Octave_object retval;
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
418
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
419 int nargin = args.length ();
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
420
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
421 if (nargin == 1 || nargin == 2)
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
422 retval = fgets_internal (args, nargin, nargout, 1);
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
423 else
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
424 print_usage ("fgetl");
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
425
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
426 return retval;
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
427 }
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
jwe
parents: 1338
diff changeset
428
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
429 DEFUN ("fgets", Ffgets, Sfgets, 2, 2,
1339
e1dbc5585afd [project @ 1995-08-25 03:58:02 by jwe]
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parents: 1338
diff changeset
430 "[STRING, LENGTH] = fgets (FILENAME or FILENUM [, LENGTH])\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
431 \n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
432 read a string from a file")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
433 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
434 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
435
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
436 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
437
1338
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
438 if (nargin == 1 || nargin == 2)
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
439 retval = fgets_internal (args, nargin, nargout);
3d235e3c13c0 [project @ 1995-08-25 03:10:55 by jwe]
jwe
parents: 1315
diff changeset
440 else
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
441 print_usage ("fgets");
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
442
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
443 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
444 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
445
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
446 static Octave_object
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
447 fopen_internal (const Octave_object& args)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
448 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
449 Octave_object retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
450 Pix p;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
451
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
452 if (! args(0).is_string ())
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
453 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
454 error ("fopen: file name must be a string");
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
455 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
456 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
457
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
458 p = return_valid_file (args(0));
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
459
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
460 if (p)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
461 {
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
462 file_info file = file_list (p);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
463
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
464 retval(0) = (double) file.number ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
465
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
466 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
467 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
468
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
469 if (! args(1).is_string ())
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
470 {
370
58d05e7b5b2d [project @ 1994-02-17 07:36:11 by jwe]
jwe
parents: 368
diff changeset
471 error ("fopen: file mode must be a string");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
472 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
473 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
474
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
475 const char *name = args(0).string_value ();
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
476 const char *mode = args(1).string_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
477
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
478 if (! valid_mode (mode))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
479 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
480 error ("fopen: invalid mode");
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
481 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
482 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
483
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
484 struct stat buffer;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
485 if (stat (name, &buffer) == 0 && (buffer.st_mode & S_IFDIR) == S_IFDIR)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
486 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
487 error ("fopen: can't open directory");
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
488 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
489 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
490
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
491 FILE *file_ptr = fopen (name, mode);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
492
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
493 if (! file_ptr)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
494 {
370
58d05e7b5b2d [project @ 1994-02-17 07:36:11 by jwe]
jwe
parents: 368
diff changeset
495 error ("fopen: unable to open file `%s'", name);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
496 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
497 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
498
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
499 int file_number = file_list.length () + 1;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
500
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
501 file_info file (file_number, name, file_ptr, mode);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
502 file_list.append (file);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
503
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
504 retval(0) = (double) file_number;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
505
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
506 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
507 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
508
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
509 DEFUN ("fopen", Ffopen, Sfopen, 2, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
510 "FILENUM = fopen (FILENAME, MODE): open a file\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
511 \n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
512 Valid values for mode include:\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
513 \n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
514 r : open text file for reading\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
515 w : open text file for writing; discard previous contents if any\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
516 a : append; open or create text file for writing at end of file\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
517 r+ : open text file for update (i.e., reading and writing)\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
518 w+ : create text file for update; discard previous contents if any\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
519 a+ : append; open or create text file for update, writing at end\n\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
520 Update mode permits reading from and writing to the same file.")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
521 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
522 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
523
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
524 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
525
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
526 if (nargin != 2)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
527 print_usage ("fopen");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
528 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
529 retval = fopen_internal (args);
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
530
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
531 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
532 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
533
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
534 static Octave_object
164
e2c950dd96d2 [project @ 1993-10-18 19:32:00 by jwe]
jwe
parents: 66
diff changeset
535 freport_internal (void)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
536 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
537 Octave_object retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
538 Pix p = file_list.first ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
539
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
540 ostrstream output_buf;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
541
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
542 output_buf << "\n number mode name\n\n";
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
543
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
544 int file_count = file_list.length ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
545 for (int i = 0; i < file_count; i++)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
546 {
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
547 file_info file = file_list (p);
1426
29f274b42cb1 [project @ 1995-09-19 03:41:32 by jwe]
jwe
parents: 1400
diff changeset
548 output_buf.form ("%7d%6s %s\n", file.number (),
29f274b42cb1 [project @ 1995-09-19 03:41:32 by jwe]
jwe
parents: 1400
diff changeset
549 file.mode ().data (), file.name ().data ());
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
550 file_list.next (p);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
551 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
552
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
553 output_buf << "\n" << ends;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
554 maybe_page_output (output_buf);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
555
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
556 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
557 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
558
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
559 DEFUN ("freport", Ffreport, Sfreport, 0, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
560 "freport (): list open files and their status")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
561 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
562 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
563
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
564 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
565
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
566 if (nargin > 0)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
567 warning ("freport: ignoring extra arguments");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
568
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
569 retval = freport_internal ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
570
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
571 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
572 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
573
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
574 static Octave_object
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
575 frewind_internal (const Octave_object& args)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
576 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
577 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
578
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
579 Pix p = file_io_get_file (args(0), "a+", "frewind");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
580
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
581 if (p)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
582 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
583 file_info file = file_list (p);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
584 rewind (file.fptr ());
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
585 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
586
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
587 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
588 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
589
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
590 DEFUN ("frewind", Ffrewind, Sfrewind, 1, 1,
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
591 "frewind (FILENAME or FILENUM): set file position at beginning of file")
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
592 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
593 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
594
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
595 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
596
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
597 if (nargin != 1)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
598 print_usage ("frewind");
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
599 else
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
600 retval = frewind_internal (args);
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
601
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
602 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
603 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
604
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
605 static Octave_object
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
606 fseek_internal (const Octave_object& args)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
607 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
608 Octave_object retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
609
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
610 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
611
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
612 Pix p = file_io_get_file (args(0), "a+", "fseek");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
613
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
614 if (! p)
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
615 return retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
616
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
617 long origin = SEEK_SET;
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
618
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
619 double doff = args(1).double_value ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
620
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
621 if (error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
622 return retval;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
623
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
624 if (xisnan (doff))
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
625 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
626 error ("fseek: NaN invalid as offset");
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
627 return retval;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
628 }
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
629
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
630 long offset = NINT (doff);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
631
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
632 if ((double) offset != doff)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
633 {
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
634 error ("fseek: offset not an integer value");
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
635 return retval;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
636 }
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
637
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
638 if (nargin == 3)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
639 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
640 double dorig = args(2).double_value ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
641
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
642 if (error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
643 return retval;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
644
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
645 if (xisnan (dorig))
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
646 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
647 error ("fseek: NaN invalid as origin");
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
648 return retval;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
649 }
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
650
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
651 origin = NINT (dorig);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
652
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
653 if ((double) dorig != origin)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
654 {
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
655 error ("fseek: origin not an integer value");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
656 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
657 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
658
763
b7a29e2ee1ae [project @ 1994-10-03 03:32:07 by jwe]
jwe
parents: 761
diff changeset
659 if (origin == 0)
b7a29e2ee1ae [project @ 1994-10-03 03:32:07 by jwe]
jwe
parents: 761
diff changeset
660 origin = SEEK_SET;
b7a29e2ee1ae [project @ 1994-10-03 03:32:07 by jwe]
jwe
parents: 761
diff changeset
661 else if (origin == 1)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
662 origin = SEEK_CUR;
763
b7a29e2ee1ae [project @ 1994-10-03 03:32:07 by jwe]
jwe
parents: 761
diff changeset
663 else if (origin == 2)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
664 origin = SEEK_END;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
665 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
666 {
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
667 error ("fseek: invalid value for origin");
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
668 return retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
669 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
670 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
671
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
672 file_info file = file_list (p);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
673 int success = fseek (file.fptr (), offset, origin);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
674
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
675 if (success == 0)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
676 retval(0) = 1.0; // succeeded
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
677 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
678 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
679 error ("fseek: file error");
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
680 retval(0) = 0.0; // failed
1
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
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
683 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
684 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
685
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
686 DEFUN ("fseek", Ffseek, Sfseek, 3, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
687 "fseek (FILENAME or FILENUM, OFFSET [, ORIGIN])\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
688 \n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
689 set file position for reading or writing")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
690 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
691 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
692
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
693 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
694
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
695 if (nargin != 2 && nargin != 3)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
696 print_usage ("fseek");
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
697 else
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
698 retval = fseek_internal (args);
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
699
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
700 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
701 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
702
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
703 // Tell current position of file.
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 static Octave_object
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
706 ftell_internal (const Octave_object& args)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
707 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
708 Octave_object retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
709
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
710 Pix p = file_io_get_file (args(0), "a+", "ftell");
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
711
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
712 if (p)
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
713 {
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
714 file_info file = file_list (p);
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
715 long offset = ftell (file.fptr ());
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
716
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
717 retval(0) = (double) offset;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
718
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
719 if (offset == -1L)
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
720 error ("ftell: write error");
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
721 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
722
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
723 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
724 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
725
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
726 DEFUN ("ftell", Fftell, Sftell, 1, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
727 "POSITION = ftell (FILENAME or FILENUM): returns the current file position")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
728 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
729 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
730
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
731 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
732
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
733 if (nargin != 1)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
734 print_usage ("ftell");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
735 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
736 retval = ftell_internal (args);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
737
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
738 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
739 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
740
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
741 void
164
e2c950dd96d2 [project @ 1993-10-18 19:32:00 by jwe]
jwe
parents: 66
diff changeset
742 close_files (void)
1
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 Pix p = file_list.first ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
745
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
746 int file_count = file_list.length ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
747 for (int i = 0; i < file_count; i++)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
748 {
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
749 if (p)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
750 {
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
751 file_info file = file_list (p);
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
752
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
753 if (i > 2) // do not close stdin, stdout, stderr!
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
754 {
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
755 int success = fclose (file.fptr ());
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
756 if (success != 0)
1426
29f274b42cb1 [project @ 1995-09-19 03:41:32 by jwe]
jwe
parents: 1400
diff changeset
757 error ("closing %s", file.name ().data ());
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
758 }
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
759
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
760 file_list.del (p);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
761 }
896
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
762 else
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
763 {
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
764 error ("inconsistent state for internal file list!");
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
765 break;
4a2133b26fa7 [project @ 1994-11-09 16:04:06 by jwe]
jwe
parents: 870
diff changeset
766 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
767 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
768 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
769
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
770 static int
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
771 process_printf_format (const char *s, const Octave_object& args,
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
772 ostrstream& sb, const char *type)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
773 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
774 ostrstream fmt;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
775
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
776 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
777
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
778 fmt << "%"; // do_printf() already blew past this one...
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 int chars_from_fmt_str = 0;
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 again:
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
783 switch (*s)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
784 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
785 case '+': case '-': case ' ': case '0': case '#':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
786 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
787 fmt << *s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
788 goto again;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
789
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
790 case '\0':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
791 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
792
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
793 default:
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
794 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
795 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
796
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
797 if (*s == '*')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
798 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
799 if (fmt_arg_count > nargin)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
800 {
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
801 error ("%s: not enough arguments", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
802 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
803 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
804
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
805 double tmp_len = args(fmt_arg_count++).double_value ();
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
806
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
807 if (error_state || xisnan (tmp_len))
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
808 {
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
809 error ("%s: `*' must be replaced by an integer", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
810 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
811 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
812
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
813 fmt << NINT (tmp_len);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
814 s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
815 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
816 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
817 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
818 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
819 while (*s != '\0' && isdigit (*s))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
820 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
821 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
822 fmt << *s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
823 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
824 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
825
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
826 if (*s == '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
827 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
828
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
829 if (*s == '.')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
830 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
831 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
832 fmt << *s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
833 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
834
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
835 if (*s == '*')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
836 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
837 if (*(s-1) == '*')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
838 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
839
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
840 if (fmt_arg_count > nargin)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
841 {
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
842 error ("%s: not enough arguments", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
843 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
844 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
845
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
846 double tmp_len = args(fmt_arg_count++).double_value ();
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
847
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
848 if (error_state || xisnan (tmp_len))
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
849 {
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
850 error ("%s: `*' must be replaced by an integer", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
851 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
852 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
853
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
854 fmt << NINT (tmp_len);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
855 s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
856 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
857 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
858 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
859 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
860 while (*s != '\0' && isdigit (*s))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
861 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
862 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
863 fmt << *s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
864 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
865 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
866
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
867 if (*s == '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
868 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
869
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
870 if (*s != '\0' && (*s == 'h' || *s == 'l' || *s == 'L'))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
871 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
872 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
873 fmt << *s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
874 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
875
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
876 if (*s == '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
877 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
878
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
879 if (fmt_arg_count > nargin)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
880 {
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
881 error ("%s: not enough arguments", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
882 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
883 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
884
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
885 switch (*s)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
886 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
887 case 'd': case 'i': case 'o': case 'u': case 'x': case 'X':
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
888 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
889 double d = args(fmt_arg_count++).double_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
890
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
891 if (error_state || xisnan (d))
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
892 goto invalid_conversion;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
893
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
894 int val = NINT (d);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
895
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
896 if ((double) val != d)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
897 goto invalid_conversion;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
898 else
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
899 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
900 chars_from_fmt_str++;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
901 fmt << *s << ends;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
902 char *tmp_fmt = fmt.str ();
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
903 sb.form (tmp_fmt, val);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
904 delete [] tmp_fmt;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
905 return chars_from_fmt_str;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
906 }
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
907 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
908
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
909 case 'e': case 'E': case 'f': case 'g': case 'G':
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
910 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
911 double val = args(fmt_arg_count++).double_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
912
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
913 if (error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
914 goto invalid_conversion;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
915 else
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
916 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
917 chars_from_fmt_str++;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
918 fmt << *s << ends;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
919 char *tmp_fmt = fmt.str ();
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
920 sb.form (tmp_fmt, val);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
921 delete [] tmp_fmt;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
922 return chars_from_fmt_str;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
923 }
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
924 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
925
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
926 case 's':
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
927 {
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
928 const char *val = args(fmt_arg_count++).string_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
929
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
930 if (error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
931 goto invalid_conversion;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
932 else
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
933 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
934 chars_from_fmt_str++;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
935 fmt << *s << ends;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
936 char *tmp_fmt = fmt.str ();
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
937 sb.form (tmp_fmt, val);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
938 delete [] tmp_fmt;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
939 return chars_from_fmt_str;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
940 }
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
941 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
942
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
943 case 'c':
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
944 {
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
945 const char *val = args(fmt_arg_count++).string_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
946
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
947 if (error_state || strlen (val) != 1)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
948 goto invalid_conversion;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
949 else
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
950 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
951 chars_from_fmt_str++;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
952 fmt << *s << ends;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
953 char *tmp_fmt = fmt.str ();
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
954 sb.form (tmp_fmt, *val);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
955 delete [] tmp_fmt;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
956 return chars_from_fmt_str;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
957 }
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
958 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
959
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
960 default:
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
961 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
962 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
963
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
964 invalid_conversion:
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
965 error ("%s: invalid conversion", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
966 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
967
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
968 invalid_format:
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
969 error ("%s: invalid format", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
970 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
971 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
972
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
973 // Formatted printing to a file.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
974
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
975 static Octave_object
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
976 do_printf (const char *type, const Octave_object& args, int nargout)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
977 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
978 Octave_object retval;
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
979 fmt_arg_count = 0;
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
980 const char *fmt;
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
981 file_info file;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
982
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
983 if (strcmp (type, "fprintf") == 0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
984 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
985 Pix p = file_io_get_file (args(0), "a+", type);
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
986
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
987 if (! p)
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
988 return retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
989
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
990 file = file_list (p);
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
991
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
992 if (file.mode () == "r")
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
993 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
994 error ("%s: file is read only", type);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
995 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
996 }
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
997
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
998 fmt = args(1).string_value ();
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
999
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1000 if (error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1001 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1002 error ("%s: format must be a string", type);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1003 return retval;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1004 }
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1005
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1006 fmt_arg_count += 2;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1007 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1008 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1009 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1010 fmt = args(0).string_value ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1011
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1012 if (error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1013 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1014 error ("%s: invalid format string", type);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1015 return retval;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1016 }
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1017
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1018 fmt_arg_count++;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1019 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1020
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1021 // Scan fmt for % escapes and print out the arguments.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1022
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1023 ostrstream output_buf;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1024
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1025 const char *ptr = fmt;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1026
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1027 for (;;)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1028 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1029 char c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1030 while ((c = *ptr++) != '\0' && c != '%')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1031 output_buf << c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1032
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1033 if (c == '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1034 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1035
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1036 if (*ptr == '%')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1037 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1038 ptr++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1039 output_buf << c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1040 continue;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1041 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1042
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1043 // We must be looking at a format specifier. Extract it or
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1044 // fail.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1045
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1046 int status = process_printf_format (ptr, args, output_buf, type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1047
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1048 if (status < 0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1049 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1050
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1051 ptr += status;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1052 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1053
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1054 output_buf << ends;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1055 if (strcmp (type, "printf") == 0
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1056 || (strcmp (type, "fprintf") == 0 && file.number () == 1))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1057 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1058 maybe_page_output (output_buf);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1059 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1060 else if (strcmp (type, "fprintf") == 0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1061 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1062 char *msg = output_buf.str ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1063 int success = fputs (msg, file.fptr ());
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1064 if (success == EOF)
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
1065 warning ("%s: unknown failure writing to file", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1066 delete [] msg;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1067 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1068 else if (strcmp (type, "sprintf") == 0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1069 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1070 char *msg = output_buf.str ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1071 retval(0) = msg;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1072 delete [] msg;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1073 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1074
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1075 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1076 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1077
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1078 DEFUN ("fprintf", Ffprintf, Sfprintf, -1, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1079 "fprintf (FILENAME or FILENUM, FORMAT, ...)")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1080 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1081 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1082
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1083 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1084
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1085 if (nargin < 2)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1086 print_usage ("fprintf");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1087 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1088 retval = do_printf ("fprintf", args, nargout);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1089
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1090 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1091 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1092
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1093 // Formatted printing.
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1094
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1095 DEFUN ("printf", Fprintf, Sprintf, -1, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1096 "printf (FORMAT, ...)")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1097 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1098 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1099
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1100 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1101
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1102 if (nargin < 1)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1103 print_usage ("printf");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1104 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1105 retval = do_printf ("printf", args, nargout);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1106
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1107 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1108 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1109
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1110 // Formatted printing to a string.
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1111
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1112 DEFUN ("sprintf", Fsprintf, Ssprintf, -1, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1113 "s = sprintf (FORMAT, ...)")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1114 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1115 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1116
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1117 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1118
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1119 if (nargin < 1)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1120 print_usage ("sprintf");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1121 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1122 retval = do_printf ("sprintf", args, nargout);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1123
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1124 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1125 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1126
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1127 static int
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1128 process_scanf_format (const char *s, ostrstream& fmt,
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1129 const char *type, int nargout, FILE* fptr,
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
1130 Octave_object& values)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1131 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1132 fmt << "%";
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1133
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1134 int chars_from_fmt_str = 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1135 int store_value = 1;
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1136 int string_width = 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1137 int success = 1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1138
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1139 if (*s == '*')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1140 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1141 store_value = 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1142 s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1143 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1144 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1145
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1146 if (isdigit (*s))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1147 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1148 ostrstream str_number;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1149 while (*s != '\0' && isdigit (*s))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1150 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1151 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1152 str_number << *s;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1153 fmt << *s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1154 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1155 str_number << ends;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1156 char *number = str_number.str ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1157 string_width = atoi (number);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1158 delete [] number;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1159 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1160
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1161 if (*s == '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1162 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1163
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1164 if (*s != '\0' && (*s == 'h' || *s == 'l' || *s == 'L'))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1165 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1166 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1167 s++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1168 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1169
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1170 if (*s == '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1171 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1172
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1173 // Even if we don't have a place to store them, attempt to convert
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1174 // everything specified by the format string.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1175
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1176 if (fmt_arg_count > (nargout ? nargout : 1))
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1177 store_value = 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1178
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1179 switch (*s)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1180 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1181 case 'd': case 'i': case 'o': case 'u': case 'x': case 'X':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1182 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1183 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1184 fmt << *s << ends;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1185 int temp;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1186 char *str = fmt.str ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1187 success = fscanf (fptr, str, &temp);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1188 delete [] str;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1189 if (success > 0 && store_value)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1190 values(fmt_arg_count++) = (double) temp;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1191 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1192 break;
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1193
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1194 case 'e': case 'E': case 'f': case 'g': case 'G':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1195 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1196 chars_from_fmt_str++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1197 fmt << 'l' << *s << ends;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1198 double temp;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1199 char *str = fmt.str ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1200 success = fscanf (fptr, str, &temp);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1201 delete [] str;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1202 if (success > 0 && store_value)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1203 values(fmt_arg_count++) = temp;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1204 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1205 break;
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1206
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1207 case 's':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1208 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1209 if (string_width < 1)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1210 {
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1211 // XXX FIXME XXX -- The code below is miscompiled on the
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1212 // Alpha with gcc 2.6.0, so that string_width is never
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1213 // incremented, even though reading the data works
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1214 // correctly. One fix is to use a fixed-size buffer...
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1215 // string_width = 8192;
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1216
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1217 string_width = 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1218 long original_position = ftell (fptr);
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1219
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1220 int c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1221
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1222 while ((c = getc (fptr)) != EOF && isspace (c))
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1223 ; // Don't count leading whitespace.
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1224
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1225 if (c != EOF)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1226 string_width++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1227
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1228 for (;;)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1229 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1230 c = getc (fptr);
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1231 if (c != EOF && ! isspace (c))
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1232 string_width++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1233 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1234 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1235 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1236
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1237 fseek (fptr, original_position, SEEK_SET);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1238 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1239 chars_from_fmt_str++;
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1240 char temp [string_width+1];
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1241 fmt << *s << ends;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1242 char *str = fmt.str ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1243 success = fscanf (fptr, str, temp);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1244 delete [] str;
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1245 temp[string_width] = '\0';
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1246 if (success > 0 && store_value)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1247 values(fmt_arg_count++) = temp;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1248 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1249 break;
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1250
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1251 case 'c':
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1252 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1253 if (string_width < 1)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1254 string_width = 1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1255 chars_from_fmt_str++;
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1256 char temp [string_width+1];
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1257 memset (temp, '\0', string_width+1);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1258 fmt << *s << ends;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1259 char *str = fmt.str ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1260 success = fscanf (fptr, str, temp);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1261 delete [] str;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1262 temp[string_width] = '\0';
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1263 if (success > 0 && store_value)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1264 values(fmt_arg_count++) = temp;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1265 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1266 break;
628
aecbe369233b [project @ 1994-08-19 13:27:51 by jwe]
jwe
parents: 610
diff changeset
1267
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1268 default:
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1269 goto invalid_format;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1270 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1271
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1272 if (success > 0)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1273 return chars_from_fmt_str;
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1274 else if (success == 0)
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
1275 warning ("%s: invalid conversion", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1276 else if (success == EOF)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1277 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1278 if (strcmp (type, "fscanf") == 0)
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
1279 warning ("%s: end of file reached before final conversion", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1280 else if (strcmp (type, "sscanf") == 0)
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
1281 warning ("%s: end of string reached before final conversion", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1282 else if (strcmp (type, "scanf") == 0)
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
1283 warning ("%s: end of input reached before final conversion", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1284 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1285 else
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1286 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1287 invalid_format:
218
d981cdce52d9 [project @ 1993-11-13 09:35:19 by jwe]
jwe
parents: 164
diff changeset
1288 warning ("%s: invalid format", type);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1289 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1290
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1291 return -1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1292 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1293
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1294 // Formatted reading from a file.
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1295
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1296 static Octave_object
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1297 do_scanf (const char *type, const Octave_object& args, int nargout)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1298 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
1299 Octave_object retval;
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1300 const char *scanf_fmt = 0;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1301 char *tmp_file = 0;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1302 int tmp_file_open = 0;
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1303 FILE *fptr = 0;
240
a99f28f5e351 [project @ 1993-11-30 20:24:36 by jwe]
jwe
parents: 218
diff changeset
1304 file_info file;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1305
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1306 fmt_arg_count = 0;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1307
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1308 if (strcmp (type, "scanf") != 0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1309 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1310 scanf_fmt = args(1).string_value ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1311
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1312 if (error_state)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1313 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1314 error ("%s: format must be a string", type);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1315 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1316 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1317 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1318
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1319 int doing_fscanf = (strcmp (type, "fscanf") == 0);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1320
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1321 if (doing_fscanf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1322 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1323 Pix p = file_io_get_file (args(0), "r", type);
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1324
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1325 if (! p)
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1326 return retval;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1327
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1328 file = file_list (p);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1329
1426
29f274b42cb1 [project @ 1995-09-19 03:41:32 by jwe]
jwe
parents: 1400
diff changeset
1330 if (file.mode () == "w" || file.mode () == "a")
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1331 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1332 error ("%s: this file is opened for writing only", type);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1333 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1334 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1335
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1336 fptr = file.fptr ();
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1337 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1338
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1339 if ((! fptr && args(0).is_string ())
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1340 || (doing_fscanf && file.number () == 0))
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1341 {
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1342 const char *string;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1343
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1344 if (strcmp (type, "scanf") == 0)
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1345 scanf_fmt = args(0).string_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1346
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1347 if (strcmp (type, "scanf") == 0
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1348 || (doing_fscanf && file.number () == 0))
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1349 {
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1350 // XXX FIXME XXX -- this should probably be possible for
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1351 // more than just stdin/stdout pairs, using a list of output
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1352 // streams to flush. The list could be created with a
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1353 // function like iostream's tie().
870
b57450f85c07 [project @ 1994-11-02 16:58:12 by jwe]
jwe
parents: 776
diff changeset
1354
b57450f85c07 [project @ 1994-11-02 16:58:12 by jwe]
jwe
parents: 776
diff changeset
1355 flush_output_to_pager ();
b57450f85c07 [project @ 1994-11-02 16:58:12 by jwe]
jwe
parents: 776
diff changeset
1356
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1357 string = gnu_readline ("");
870
b57450f85c07 [project @ 1994-11-02 16:58:12 by jwe]
jwe
parents: 776
diff changeset
1358
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1359 if (string && *string)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1360 maybe_save_history (string);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1361 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1362 else
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1363 string = args(0).string_value ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1364
637
ae87e84f1be3 [project @ 1994-08-23 21:21:45 by jwe]
jwe
parents: 636
diff changeset
1365 tmp_file = octave_tmp_file_name ();
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1366
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1367 fptr = fopen (tmp_file, "w+");
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1368 if (! fptr)
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1369 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1370 error ("%s: error opening temporary file", type);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1371 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1372 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1373 tmp_file_open = 1;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1374 unlink (tmp_file);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1375
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1376 if (! string)
776
f19fb97286c6 [project @ 1994-10-05 22:54:26 by jwe]
jwe
parents: 763
diff changeset
1377 {
f19fb97286c6 [project @ 1994-10-05 22:54:26 by jwe]
jwe
parents: 763
diff changeset
1378 error ("%s: no string to scan", type);
f19fb97286c6 [project @ 1994-10-05 22:54:26 by jwe]
jwe
parents: 763
diff changeset
1379 return retval;
f19fb97286c6 [project @ 1994-10-05 22:54:26 by jwe]
jwe
parents: 763
diff changeset
1380 }
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1381
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1382 int success = fputs (string, fptr);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1383 fflush (fptr);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1384 rewind (fptr);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1385
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1386 if (success < 0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1387 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1388 error ("%s: trouble writing temporary file", type);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1389 fclose (fptr);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1390 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1391 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1392 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1393 else if (! doing_fscanf)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1394 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1395 error ("%s: first argument must be a string", type);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1396 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1397 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1398
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1399 // Scan scanf_fmt for % escapes and assign the arguments.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1400
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1401 retval.resize (nargout);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1402
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1403 const char *ptr = scanf_fmt;
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1404
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1405 for (;;)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1406 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1407 ostrstream fmt;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1408 char c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1409 while ((c = *ptr++) != '\0' && c != '%')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1410 fmt << c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1411
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1412 if (c == '\0')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1413 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1414
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1415 if (*ptr == '%')
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1416 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1417 ptr++;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1418 fmt << c;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1419 continue;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1420 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1421
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1422 // We must be looking at a format specifier. Extract it or
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1423 // fail.
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1424
368
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1425 int status = process_scanf_format (ptr, fmt, type, nargout,
5c987c27f3d7 [project @ 1994-02-16 08:33:09 by jwe]
jwe
parents: 367
diff changeset
1426 fptr, retval);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1427
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1428 if (status < 0)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1429 {
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1430 if (fmt_arg_count == 0)
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
1431 retval.resize (0);
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1432 break;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1433 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1434
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1435 ptr += status;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1436 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1437
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1438 if (tmp_file_open)
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1439 fclose (fptr);
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1440
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1441 return retval;
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1442 }
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
1443
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1444 DEFUN ("fscanf", Ffscanf, Sfscanf, 2, -1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1445 "[A, B, C, ...] = fscanf (FILENAME or FILENUM, FORMAT)")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1446 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1447 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1448
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1449 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1450
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1451 if (nargin != 1 && nargin != 2)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1452 print_usage ("fscanf");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1453 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1454 retval = do_scanf ("fscanf", args, nargout);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1455
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1456 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1457 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1458
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1459 // Formatted reading.
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1460
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1461 DEFUN ("scanf", Fscanf, Sscanf, 1, -1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1462 "[A, B, C, ...] = scanf (FORMAT)")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1463 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1464 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1465
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1466 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1467
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1468 if (nargin != 1)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1469 print_usage ("scanf");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1470 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1471 retval = do_scanf ("scanf", args, nargout);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1472
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1473 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1474 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1475
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1476 // Formatted reading from a string.
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1477
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1478 DEFUN ("sscanf", Fsscanf, Ssscanf, 2, -1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1479 "[A, B, C, ...] = sscanf (STRING, FORMAT)")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1480 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1481 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1482
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1483 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1484
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1485 if (nargin != 2)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1486 print_usage ("sscanf");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1487 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1488 retval = do_scanf ("sscanf", args, nargout);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1489
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1490 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1491 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1492
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1493 // Find out how many elements are left to read.
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1494
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1495 static long
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1496 num_items_remaining (FILE *fptr, const char *type)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1497 {
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1498 size_t size;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1499
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1500 if (strcasecmp (type, "uchar") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1501 size = sizeof (u_char);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1502 else if (strcasecmp (type, "char") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1503 size = sizeof (char);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1504 else if (strcasecmp (type, "short") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1505 size = sizeof (short);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1506 else if (strcasecmp (type, "ushort") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1507 size = sizeof (u_short);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1508 else if (strcasecmp (type, "int") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1509 size = sizeof (int);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1510 else if (strcasecmp (type, "uint") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1511 size = sizeof (u_int);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1512 else if (strcasecmp (type, "long") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1513 size = sizeof (long);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1514 else if (strcasecmp (type, "ulong") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1515 size = sizeof (u_long);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1516 else if (strcasecmp (type, "float") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1517 size = sizeof (float);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1518 else if (strcasecmp (type, "double") == 0)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1519 size = sizeof (double);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1520 else
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1521 return 0;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1522
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1523 long curr_pos = ftell (fptr);
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1524
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1525 fseek (fptr, 0, SEEK_END);
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1526 long end_of_file = ftell (fptr);
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1527
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1528 fseek (fptr, curr_pos, SEEK_SET);
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1529
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1530 long len = end_of_file - curr_pos;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1531
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1532 return len / size;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1533 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1534
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1535 // Read binary data from a file.
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1536 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1537 // [data, count] = fread (fid, size, 'precision')
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1538 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1539 // fid : the file id from fopen
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1540 // size : the size of the matrix or vector or scaler to read
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1541 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1542 // n : reads n elements of a column vector
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1543 // inf : reads to the end of file (default)
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1544 // [m, n] : reads enough elements to fill the matrix
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1545 // the number of columns can be inf
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1546 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1547 // precision : type of the element. Can be:
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1548 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1549 // char, uchar, schar, short, ushort, int, uint,
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1550 // long, ulong, float, double
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1551 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1552 // Default is uchar.
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1553 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1554 // data : output data
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1555 // count : number of elements read
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1556
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1557 static Octave_object
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1558 fread_internal (const Octave_object& args, int nargout)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1559 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
1560 Octave_object retval;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1561
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1562 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1563
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1564 Pix p = file_io_get_file (args(0), "r", "fread");
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1565
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1566 if (! p)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1567 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1568
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1569 // Get type and number of bytes per element to read.
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1570
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1571 const char *prec = "uchar";
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1572 if (nargin > 2)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1573 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1574 prec = args(2).string_value ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1575
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1576 if (error_state)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1577 {
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1578 error ("fread: precision must be a specified as a string");
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1579 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1580 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1581 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1582
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1583 file_info file = file_list (p);
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1584
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1585 FILE *fptr = file.fptr ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1586
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1587 // Set up matrix to read into. If specified in arguments use that
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1588 // number, otherwise read everyting left in file.
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1589
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1590 double dnr = 0.0;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1591 double dnc = 0.0;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1592 int nr;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1593 int nc;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1594
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1595 if (nargin > 1)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1596 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1597 if (args(1).is_scalar_type ())
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1598 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1599 dnr = args(1).double_value ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1600
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1601 if (error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1602 return retval;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1603
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1604 dnc = 1.0;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1605 }
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1606 else
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1607 {
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1608 ColumnVector tmp = args(1).vector_value ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1609
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1610 if (error_state || tmp.length () != 2)
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1611 {
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1612 error ("fread: invalid size specification\n");
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1613 return retval;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1614 }
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1615
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1616 dnr = tmp.elem (0);
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1617 dnc = tmp.elem (1);
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1618 }
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1619
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1620 if ((xisinf (dnr)) && (xisinf (dnc)))
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1621 {
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1622 error ("fread: number of rows and columns cannot both be infinite");
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1623 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1624 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1625
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1626 if (xisinf (dnr))
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1627 {
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1628 if (xisnan (dnc))
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1629 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1630 error ("fread: NaN invalid as the number of columns");
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1631 return retval;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1632 }
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1633 else
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1634 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1635 nc = NINT (dnc);
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1636 int n = num_items_remaining (fptr, prec);
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1637 nr = n / nc;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1638 if (n > nr * nc)
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1639 nr++;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1640 }
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1641 }
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1642 else if (xisinf (dnc))
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1643 {
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1644 if (xisnan (dnr))
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1645 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1646 error ("fread: NaN invalid as the number of rows");
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1647 return retval;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1648 }
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1649 else
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1650 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1651 nr = NINT (dnr);
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1652 int n = num_items_remaining (fptr, prec);
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1653 nc = n / nr;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1654 if (n > nc * nr)
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1655 nc++;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1656 }
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1657 }
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1658 else
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1659 {
1086
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1660 if (xisnan (dnr))
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1661 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1662 error ("fread: NaN invalid as the number of rows");
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1663 return retval;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1664 }
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1665 else
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1666 nr = NINT (dnr);
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1667
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1668 if (xisnan (dnc))
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1669 {
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1670 error ("fread: NaN invalid as the number of columns");
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1671 return retval;
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1672 }
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1673 else
75fc98220389 [project @ 1995-01-31 04:17:15 by jwe]
jwe
parents: 1049
diff changeset
1674 nc = NINT (dnc);
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1675 }
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1676 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1677 else
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1678 {
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1679 // No size parameter, read what's left of the file.
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1680
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1681 nc = 1;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1682 int n = num_items_remaining (fptr, prec);
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1683 nr = n / nc;
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1684 if (n > nr * nc)
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1685 nr++;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1686 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1687
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1688 Matrix m (nr, nc, octave_NaN);
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1689
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1690 // Read data.
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1691
471
32fb3a762074 [project @ 1994-06-06 08:55:13 by jwe]
jwe
parents: 456
diff changeset
1692 int count = m.read (fptr, prec);
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1693
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1694 if (nargout > 1)
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1695 retval(1) = (double) count;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1696
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1697 retval(0) = m;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1698
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1699 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1700 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1701
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1702 DEFUN ("fread", Ffread, Sfread, 3, 2,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1703 "[DATA, COUNT] = fread (FILENUM, SIZE, PRECISION)\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1704 \n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1705 Reads data in binary form of type PRECISION from a file.\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1706 \n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1707 FILENUM : file number from fopen\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1708 SIZE : size specification for the Data matrix\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1709 PRECISION : type of data to read, valid types are\n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1710 \n\
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1711 \"char\" \"schar\" \"short\" \"int\" \"long\" \"float\"\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1712 \"double\" \"uchar\" \"ushort\" \"uint\" \"ulong\"\n\
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1713 \n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1714 DATA : matrix in which the data is stored\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1715 COUNT : number of elements read")
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1716 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1717 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1718
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1719 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1720
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1721 if (nargin < 1 || nargin > 3)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1722 print_usage ("fread");
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1723 else
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1724 retval = fread_internal (args, nargout);
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1725
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1726 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1727 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1728
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1729 // Write binary data to a file.
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1730 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1731 // count = fwrite (fid, data, 'precision')
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1732 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1733 // fid : file id from fopen
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1734 // Data : data to be written
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1735 // precision : type of output element. Can be:
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1736 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1737 // char, uchar, schar, short, ushort, int, uint,
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1738 // long, float, double
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1739 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1740 // Default is uchar.
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1741 //
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1742 // count : the number of elements written
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1743
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1744 static Octave_object
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1745 fwrite_internal (const Octave_object& args, int nargout)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1746 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
1747 Octave_object retval;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1748
506
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1749 int nargin = args.length ();
0f388340e607 [project @ 1994-07-09 06:10:34 by jwe]
jwe
parents: 497
diff changeset
1750
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1751 Pix p = file_io_get_file (args(0), "a+", "fwrite");
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1752
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1753 if (! p)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1754 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1755
1358
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1756 // Get type and number of bytes per element to read.
dc9c01f66a19 [project @ 1995-09-05 21:10:01 by jwe]
jwe
parents: 1352
diff changeset
1757
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1758 const char *prec = "uchar";
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1759 if (nargin > 2)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1760 {
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1761 prec = args(2).string_value ();
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1762
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1763 if (error_state)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1764 {
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1765 error ("fwrite: precision must be a specified as a string");
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1766 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1767 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1768 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1769
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1770 file_info file = file_list (p);
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1771
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1772 Matrix m = args(1).matrix_value ();
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1773
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1774 if (! error_state)
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1775 {
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1776 int count = m.write (file.fptr (), prec);
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1777
636
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1778 retval(0) = (double) count;
fae2bd91c027 [project @ 1994-08-23 18:39:50 by jwe]
jwe
parents: 628
diff changeset
1779 }
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1780
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1781 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1782 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1783
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1784 DEFUN ("fwrite", Ffwrite, Sfwrite, 3, 1,
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1785 "COUNT = fwrite (FILENUM, DATA, PRECISION)\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1786 \n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1787 Writes data to a file in binary form of size PRECISION\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1788 \n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1789 FILENUM : file number from fopen\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1790 DATA : matrix of elements to be written\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1791 PRECISION : type of data to read, valid types are\n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1792 \n\
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1793 \"char\" \"schar\" \"short\" \"int\" \"long\" \"float\"\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1794 \"double\" \"uchar\" \"ushort\" \"uint\" \"ulong\"\n\
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1795 \n\
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1796 COUNT : number of elements written")
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1797 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1798 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1799
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1800 int nargin = args.length ();
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1801
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1802 if (nargin < 2 || nargin > 3)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1803 print_usage ("fwrite");
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1804 else
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1805 retval = fwrite_internal (args, nargout);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1806
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1807 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1808 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1809
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1810 // Check for an EOF condition on a file opened by fopen.
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1811 //
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1812 // eof = feof (fid)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1813 //
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1814 // fid : file id from fopen
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1815 // eof : non zero for an end of file condition
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1816
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1817 static Octave_object
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1818 feof_internal (const Octave_object& args, int nargout)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1819 {
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1820 Octave_object retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1821
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1822 Pix p = return_valid_file (args(0));
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1823
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1824 if (! p)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1825 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1826
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1827 file_info file = file_list (p);
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1828
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1829 retval(0) = (double) feof (file.fptr ());
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1830
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1831 return retval;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1832 }
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1833
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1834 DEFUN ("feof", Ffeof, Sfeof, 1, 1,
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1835 "ERROR = feof (FILENAME or FILENUM)\n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1836 \n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1837 Returns a non zero value for an end of file condition for the\n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1838 file specified by FILENAME or FILENUM from fopen")
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1839 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1840 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1841
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1842 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1843
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1844 if (nargin != 1)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1845 print_usage ("feof");
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1846 else
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1847 retval = feof_internal (args, nargout);
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1848
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1849 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1850 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1851
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1852 // Check for an error condition on a file opened by fopen.
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1853 //
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1854 // [message, errnum] = ferror (fid)
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1855 //
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1856 // fid : file id from fopen
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1857 // message : system error message
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1858 // errnum : error number
761
f0133cd32852 [project @ 1994-10-02 22:22:45 by jwe]
jwe
parents: 759
diff changeset
1859
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1860 static Octave_object
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1861 ferror_internal (const Octave_object& args, int nargout)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1862 {
497
88614b380d6e [project @ 1994-07-08 02:00:57 by jwe]
jwe
parents: 471
diff changeset
1863 Octave_object retval;
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1864
1049
e34efb49a229 [project @ 1995-01-19 15:24:13 by jwe]
jwe
parents: 1009
diff changeset
1865 Pix p = return_valid_file (args(0));
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1866
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1867 if (! p)
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1868 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1869
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1870 file_info file = file_list (p);
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1871
1181
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1872 int ierr = ferror (file.fptr ());
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1873
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1874 if (nargout > 1)
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1875 retval(1) = (double) ierr;
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1876
b2b7c5264ac2 [project @ 1995-03-28 23:51:50 by jwe]
jwe
parents: 1086
diff changeset
1877 retval(0) = strsave (strerror (ierr));
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1878
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1879 return retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1880 }
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1881
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1882 DEFUN ("ferror", Fferror, Sferror, 1, 1,
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1883 "ERROR = ferror (FILENAME or FILENUM)\n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1884 \n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1885 Returns a non zero value for an error condition on the\n\
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1886 file specified by FILENAME or FILENUM from fopen")
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1887 {
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1888 Octave_object retval;
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1889
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1890 int nargin = args.length ();
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1891
712
36ba0576bd1b [project @ 1994-09-19 14:18:15 by jwe]
jwe
parents: 637
diff changeset
1892 if (nargin != 1)
529
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1893 print_usage ("ferror");
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1894 else
7ea224e713cd [project @ 1994-07-20 18:54:27 by jwe]
jwe
parents: 506
diff changeset
1895 retval = ferror_internal (args, nargout);
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1896
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1897 return retval;
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1898 }
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
1899
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1900 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1901 popen_internal (const Octave_object& args)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1902 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1903 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1904
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1905 if (! args(0).is_string ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1906 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1907 error ("popen: file name must be a string");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1908 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1909 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1910
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1911 Pix p = return_valid_file (args(0));
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1912
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1913 if (p)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1914 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1915 file_info file = file_list (p);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1916
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1917 retval(0) = (double) file.number ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1918
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1919 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1920 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1921
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1922 if (! args(1).is_string ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1923 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1924 error ("popen: file mode must be a string");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1925 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1926 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1927
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1928 const char *name = args(0).string_value ();
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
1929 const char *mode = args(1).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1930
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1931 if (mode[1] || (mode[0] != 'w' && mode[0] != 'r'))
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1932 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1933 error ("popen: invalid mode, must be either \"r\" or \"w\".");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1934 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1935 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1936
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1937 struct stat buffer;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1938 if (stat (name, &buffer) == 0 && (buffer.st_mode & S_IFDIR) == S_IFDIR)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1939 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1940 error ("popen: can't open directory");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1941 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1942 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1943
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1944 FILE *file_ptr = popen (name, mode);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1945
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1946 if (! file_ptr)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1947 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1948 error ("popen: unable to start process `%s'", name);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1949 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1950 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1951
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1952 int number = file_list.length () + 1;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1953
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1954 file_info file (number, name, file_ptr, mode);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1955 file_list.append (file);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1956
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1957 retval(0) = (double) number;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1958
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1959 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1960 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1961
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1962 DEFUN ("popen", Fpopen, Spopen, 2, 1,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1963 "FILENUM = popen (FILENAME, MODE)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1964 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1965 start a process and create a pipe. Valid values for mode are:\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1966 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1967 \"r\" : connect stdout of process to pipe\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1968 \"w\" : connect stdin of process to pipe")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1969 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1970 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1971
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1972 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1973
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1974 if (nargin != 2)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1975 print_usage ("popen");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1976 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1977 retval = popen_internal (args);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1978
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1979 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1980 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1981
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1982 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1983 pclose_internal (const Octave_object& args)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1984 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1985 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1986
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1987 Pix p = return_valid_file (args(0));
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1988
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1989 if (! p)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1990 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1991
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1992 file_info file = file_list (p);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1993
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1994 if (file.number () < 3)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1995 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1996 warning ("pclose: can't close stdin, stdout, or stderr!");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1997 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1998 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
1999
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2000 int success = pclose (file.fptr ());
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2001 file_list.del (p);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2002
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2003 if (success == 0)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2004 retval(0) = 1.0; // succeeded
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2005 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2006 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2007 error ("pclose: error on closing file");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2008 retval(0) = 0.0; // failed
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2009 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2010
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2011 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2012 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2013
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2014 DEFUN ("pclose", Fpclose, Spclose, 1, 1,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2015 "pclose (FILENAME or FILENUM)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2016 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2017 Close a pipe and terminate the associated process")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2018 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2019 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2020
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2021 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2022
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2023 if (nargin != 1)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2024 print_usage ("pclose");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2025 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2026 retval = pclose_internal (args);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2027
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2028 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2029 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2030
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2031 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2032 execute_internal (const Octave_object& args, int nargout)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2033 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2034 Octave_object retval (3, tree_constant (-1.0));
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2035
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2036 pid_t pid = 0;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2037 int stdin_pipe[2];
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2038 int stdout_pipe[2];
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2039 FILE *stdin_file;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2040 FILE *stdout_file;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2041 int new_stdin;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2042 int new_stdout;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2043
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2044 if (! args(0).is_string ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2045 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2046 error ("execute: file name must be a string");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2047 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2048 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2049
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
2050 const char *name = args(0).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2051
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2052 if (pipe (stdin_pipe) || pipe (stdout_pipe))
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2053 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2054 error ("execute: pipe creation failed");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2055 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2056 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2057
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2058 pid = fork ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2059
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2060 if (pid < (pid_t) 0)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2061 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2062 error ("execute: fork failed - can't create child process");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2063 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2064 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2065
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2066 if (pid == (pid_t) 0)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2067 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2068 close (stdin_pipe[1]);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2069 close (stdout_pipe[0]);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2070
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2071 dup2 (stdin_pipe[0], STDIN_FILENO);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2072 close (stdin_pipe[0]);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2073
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2074 dup2 (stdout_pipe[1], STDOUT_FILENO);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2075 close (stdout_pipe[1]);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2076
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2077 if (execlp (name, name, 0) == -1)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2078 error ("execute: unable to start process `%s'", name);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2079
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2080 exit (0);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2081 return 0.0;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2082 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2083 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2084 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2085 close (stdin_pipe[0]);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2086 close (stdout_pipe[1]);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2087
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2088 stdout_file = fdopen (stdout_pipe[0], "r");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2089 stdin_file = fdopen (stdin_pipe[1], "w");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2090
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2091 if (fcntl (fileno (stdout_file), F_SETFL, O_NONBLOCK) < 0)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2092 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2093 error ("execute: error setting file mode");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2094 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2095 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2096
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2097 new_stdin = file_list.length () + 1;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2098 new_stdout = new_stdin + 1;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2099
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2100 file_info new_stdin_file_ptr (new_stdin, name, stdin_file, "w");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2101 file_info new_stdout_file_ptr (new_stdout, name, stdout_file, "r");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2102
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2103 file_list.append (new_stdin_file_ptr);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2104 file_list.append (new_stdout_file_ptr);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2105 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2106
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2107 retval(2) = (double) pid;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2108 retval(1) = (double) new_stdout;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2109 retval(0) = (double) new_stdin;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2110
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2111 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2112 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2113
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2114 DEFUN ("execute", Fexecute, Sexecute, 1, 3,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2115 "[STDIN, STDOUT, PID] = execute (COMMAND)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2116 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2117 Start a program and redirect its stdin to STDIN and its stdout to STDOUT")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2118 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2119 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2120
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2121 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2122
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2123 if (nargin != 1)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2124 print_usage ("execute");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2125 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2126 retval = execute_internal (args, nargout);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2127
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2128 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2129 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2130
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2131 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2132 sync_system_internal (const Octave_object& args)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2133 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2134 Octave_object retval (1, tree_constant (-1.0));
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2135
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2136 if (! args(0).is_string ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2137 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2138 error ("sync_system: file name must be a string");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2139 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2140 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2141
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
2142 const char *name = args(0).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2143
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2144 retval (0) = (double) system (name);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2145 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2146 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2147
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2148 DEFUN ("sync_system", Fsync_system, Ssync_system, 1, 1,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2149 "RETCODE = sync_system (FILENAME)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2150 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2151 Start a program and wait until it terminates")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2152 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2153 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2154
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2155 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2156
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2157 if (nargin != 1)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2158 print_usage ("sync_system");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2159 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2160 retval = sync_system_internal (args);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2161
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2162 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2163 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2164
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2165 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2166 async_system_internal (const Octave_object& args)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2167 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2168 Octave_object retval (1, tree_constant (-1.0));
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2169 pid_t pid;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2170
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2171 if (! args(0).is_string ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2172 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2173 error ("async_system: file name must be a string");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2174 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2175 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2176
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
2177 const char *name = args(0).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2178
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2179 pid = fork ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2180
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2181 if (pid < 0)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2182 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2183 error ("async_system: fork failed -- can't create child process");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2184 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2185 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2186
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2187 if (pid == 0)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2188 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2189 system (name);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2190 exit (0);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2191 retval (0) = 0.0;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2192 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2193 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2194 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2195 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2196 retval (0) = (double) pid;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2197 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2198 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2199 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2200
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2201 DEFUN ("async_system", Fasync_system, Sasync_system, 1, 1,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2202 "PID = async_system (FILENAME)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2203 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2204 Create a new process and start FILENAME")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2205 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2206 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2207
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2208 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2209
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2210 if (nargin != 1)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2211 print_usage ("async_system");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2212 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2213 retval = async_system_internal (args);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2214
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2215 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2216 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2217
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2218 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2219 waitpid_internal (const Octave_object& args)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2220 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2221 Octave_object retval (1, tree_constant (-1.0));
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2222
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2223 double pid_num = args(0).double_value ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2224
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2225 if (! error_state)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2226 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2227 if (D_NINT (pid_num) != pid_num)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2228 error ("waitpid: PID must be an integer value");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2229 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2230 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2231 pid_t pid = (pid_t) pid_num;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2232
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2233 int options = 0;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2234
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2235 if (args.length () == 2)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2236 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2237 double options_num = args(1).double_value ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2238
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2239 if (! error_state)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2240 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2241 if (D_NINT (options_num) != options_num)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2242 error ("waitpid: PID must be an integer value");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2243 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2244 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2245 options = NINT (options_num);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2246 if (options < 0 || options > 3)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2247 error ("waitpid: invalid OPTIONS value specified");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2248 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2249 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2250 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2251
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2252 if (! error_state)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2253 retval (0) = (double) waitpid (pid, 0, options);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2254 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2255 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2256
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2257 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2258 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2259
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2260 DEFUN ("waitpid", Fwaitpid, Swaitpid, 1, 1,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2261 "STATUS = waitpid (PID, OPTIONS)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2262 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2263 wait for process PID to terminate\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2264 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2265 PID can be:\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2266 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2267 -1 : wait for any child process\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2268 0 : wait for any child process whose process group ID is equal to\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2269 that of the Octave interpreter process.\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2270 > 0 : wait for termination of the child process with ID PID.\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2271 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2272 OPTIONS is:\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2273 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2274 0 : wait until signal is received or a child process exits (this\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2275 is the default if the OPTIONS argument is missing) \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2276 1 : do not hang if status is not immediately available\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2277 2 : report the status of any child processes that are\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2278 stopped, and whose status has not yet been reported\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2279 since they stopped\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2280 3 : implies both 1 and 2\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2281 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2282 STATUS is:\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2283 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2284 -1 : if an error occured\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2285 > 0 : the process ID of the child process that exited")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2286 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2287 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2288
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2289 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2290
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2291 if (nargin == 1 || nargin == 2)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2292 retval = waitpid_internal (args);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2293 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2294 print_usage ("waitpid");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2295
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2296 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2297 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2298
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2299 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2300 mkfifo_internal (const Octave_object& args)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2301 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2302 Octave_object retval (1, tree_constant (-1.0));
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2303
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2304 if (! args(0).is_string ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2305 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2306 error ("mkfifo: file name must be a string");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2307 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2308 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2309
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
2310 const char *name = args(0).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2311
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2312 if (! args(1).is_scalar_type ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2313 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2314 error ("mkfifo: MODE must be an integer");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2315 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2316 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2317
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2318 long mode = (long) args(1).double_value ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2319
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2320 retval (0) = (double) mkfifo (name, mode);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2321
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2322 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2323 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2324
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2325 DEFUN ("mkfifo", Fmkfifo, Smkfifo, 2, 1,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2326 "STATUS = mkfifo (NAME, MODE)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2327 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2328 Create a FIFO special file named NAME with file mode MODE\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2329 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2330 STATUS is:\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2331 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2332 != 0 : if mkfifo failed\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2333 0 : if the FIFO special file could be created")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2334 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2335 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2336
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2337 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2338
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2339 if (nargin != 2)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2340 print_usage ("mkfifo");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2341 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2342 retval = mkfifo_internal (args);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2343
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2344 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2345 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2346
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2347 static Octave_object
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2348 unlink_internal (const Octave_object& args)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2349 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2350 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2351
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2352 if (! args(0).is_string ())
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2353 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2354 error ("unlink: file name must be a string");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2355 retval (0) = -1.0;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2356 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2357 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2358
1363
ed5757e3333b [project @ 1995-09-05 23:26:59 by jwe]
jwe
parents: 1358
diff changeset
2359 const char *name = args(0).string_value ();
1230
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2360
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2361 retval (0) = (double) unlink (name);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2362
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2363 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2364 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2365
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2366 DEFUN ("unlink", Funlink, Sunlink, 1, 1,
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2367 "STATUS = unlink (NAME)\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2368 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2369 Delete the file NAME\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2370 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2371 STATUS is:\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2372 \n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2373 != 0 : if unlink failed\n\
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2374 0 : if the file could be successfully deleted")
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2375 {
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2376 Octave_object retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2377
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2378 int nargin = args.length ();
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2379
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2380 if (nargin != 1)
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2381 print_usage ("unlink");
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2382 else
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2383 retval = unlink_internal (args);
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2384
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2385 return retval;
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2386 }
92609e161b29 [project @ 1995-04-10 01:08:57 by jwe]
jwe
parents: 1181
diff changeset
2387
1377
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2388 static Octave_map
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2389 mk_stat_map (struct stat& st)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2390 {
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2391 Octave_map m;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2392
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2393 char mode_as_string[11];
1381
4b01352e52d8 [project @ 1995-09-12 07:10:57 by jwe]
jwe
parents: 1379
diff changeset
2394 mode_string (st.st_mode, mode_as_string);
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2395 mode_as_string[10] = '\0';
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2396
1377
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2397 m["dev"] = (double) st.st_dev;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2398 m["ino"] = (double) st.st_ino;
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2399 m["modestr"] = mode_as_string;
1377
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2400 m["nlink"] = (double) st.st_nlink;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2401 m["uid"] = (double) st.st_uid;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2402 m["gid"] = (double) st.st_gid;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2403 #if defined (HAVE_ST_RDEV)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2404 m["rdev"] = (double) st.st_rdev;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2405 #endif
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2406 m["size"] = (double) st.st_size;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2407 m["atime"] = (double) st.st_atime;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2408 m["mtime"] = (double) st.st_mtime;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2409 m["ctime"] = (double) st.st_ctime;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2410 #if defined (HAVE_ST_BLKSIZE)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2411 m["blksize"] = (double) st.st_blksize;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2412 #endif
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2413 #if defined (HAVE_ST_BLOCKS)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2414 m["blocks"] = (double) st.st_blocks;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2415 #endif
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2416
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2417 return m;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2418 }
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2419
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2420 DEFUN ("stat", Fstat, Sstat, 1, 1,
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2421 "stat (NAME)\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2422 \n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2423 Given the name of a file, return a structure with the following
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2424 elements:\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2425 \n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2426 dev : id of device containing a directory entry for this file\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2427 ino : file number of the file\n\
1381
4b01352e52d8 [project @ 1995-09-12 07:10:57 by jwe]
jwe
parents: 1379
diff changeset
2428 modestr : file mode, as a string of ten letters or dashes as in ls -l\n\
1377
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2429 nlink : number of links\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2430 uid : user id of file's owner\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2431 gid : group id of file's group \n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2432 rdev : id of device for block or character special files\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2433 size : size in bytes\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2434 atime : time of last access\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2435 mtime : time of last modification\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2436 ctime : time of last file status change\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2437 blksize : size of blocks in the file\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2438 blocks : number of blocks allocated for file\n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2439 \n\
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2440 If the file does not exist, -1 is returned.")
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2441 {
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2442 Octave_object retval;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2443
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2444 if (args.length () == 1)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2445 {
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2446 const char *name = args(0).string_value ();
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2447
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2448 static char *fname = 0;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2449
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2450 if (fname)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2451 free (fname);
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2452
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2453 fname = tilde_expand (name);
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2454
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2455 if (! error_state)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2456 {
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2457 struct stat buf;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2458
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2459 if (stat (fname, &buf) < 0)
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2460 retval = -1.0;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2461 else
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2462 retval = tree_constant (mk_stat_map (buf));
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2463 }
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2464 }
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2465 else
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2466 print_usage ("stat");
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2467
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2468 return retval;
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2469 }
44f5d41ff757 [project @ 1995-09-12 00:07:58 by jwe]
jwe
parents: 1363
diff changeset
2470
1379
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2471 DEFUN ("lstat", Flstat, Slstat, 1, 1,
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2472 "lstat (NAME)\n\
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2473 \n\
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2474 Like stat (NAME), but if NAME refers to a symbolic link, returns\n\
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2475 information about the link itself, not the file that it points to.")
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2476 {
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2477 Octave_object retval;
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2478
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2479 if (args.length () == 1)
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2480 {
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2481 const char *name = args(0).string_value ();
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2482
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2483 static char *fname = 0;
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2484
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2485 if (fname)
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2486 free (fname);
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2487
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2488 fname = tilde_expand (name);
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2489
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2490 if (! error_state)
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2491 {
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2492 struct stat buf;
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2493
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2494 if (lstat (fname, &buf) < 0)
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2495 retval = -1.0;
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2496 else
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2497 retval = tree_constant (mk_stat_map (buf));
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2498 }
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2499 }
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2500 else
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2501 print_usage ("stat");
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2502
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2503 return retval;
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2504 }
e29697484908 [project @ 1995-09-12 00:41:58 by jwe]
jwe
parents: 1377
diff changeset
2505
1400
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2506 static int
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2507 convert (int x, int ibase, int obase)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2508 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2509 int retval = 0;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2510
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2511 int tmp = x % obase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2512
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2513 if (tmp > ibase - 1)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2514 error ("umask: invalid digit");
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2515 else
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2516 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2517 retval = tmp;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2518 int mult = ibase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2519 while ((x = (x - tmp) / obase))
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2520 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2521 tmp = x % obase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2522 if (tmp > ibase - 1)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2523 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2524 error ("umask: invalid digit");
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2525 break;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2526 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2527 retval += mult * tmp;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2528 mult *= ibase;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2529 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2530 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2531
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2532 return retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2533 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2534
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2535 DEFUN ("umask", Fumask, Sumask, 2, 1,
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2536 "umask (MASK)\n\
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2537 \n\
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2538 Change the file permission mask for file creation for the current
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2539 process. MASK is an integer, interpreted as an octal number. If
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2540 successful, returns the previous value of the mask (as an integer to
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2541 be interpreted as an octal number); otherwise an error message is
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2542 printed.")
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2543 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2544 Octave_object retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2545
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2546 int status = 0;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2547
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2548 if (args.length () == 1)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2549 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2550 double dmask = args(0).double_value ();
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2551
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2552 if (error_state)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2553 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2554 status = -1;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2555 error ("umask: expecting integer argument");
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2556 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2557 else
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2558 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2559 int mask = NINT (dmask);
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2560
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2561 if ((double) mask != dmask || mask < 0)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2562 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2563 status = -1;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2564 error ("umask: MASK must be a positive integer value");
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2565 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2566 else
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2567 {
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2568 int oct_mask = convert (mask, 8, 10);
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2569
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2570 if (! error_state)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2571 #if defined (HAVE_UMASK)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2572 status = convert (umask (oct_mask), 10, 8);
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2573 #endif
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2574 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2575 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2576 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2577 else
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2578 print_usage ("umask");
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2579
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2580 if (status >= 0)
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2581 retval(0) = (double) status;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2582
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2583 return retval;
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2584 }
209ec8f4db00 [project @ 1995-09-15 04:08:08 by jwe]
jwe
parents: 1381
diff changeset
2585
444
ba637cc5c5f3 [project @ 1994-06-02 17:15:07 by jwe]
jwe
parents: 372
diff changeset
2586 /*
1
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2587 ;;; Local Variables: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2588 ;;; mode: C++ ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2589 ;;; page-delimiter: "^/\\*" ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2590 ;;; End: ***
78fd87e624cb [project @ 1993-08-08 01:13:40 by jwe]
jwe
parents:
diff changeset
2591 */