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1 /* |
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2 |
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3 Copyright (C) 1996, 1997 John W. Eaton |
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4 |
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5 This file is part of Octave. |
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6 |
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7 Octave is free software; you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by the |
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9 Free Software Foundation; either version 2, or (at your option) any |
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10 later version. |
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11 |
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12 Octave is distributed in the hope that it will be useful, but WITHOUT |
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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15 for more details. |
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16 |
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17 You should have received a copy of the GNU General Public License |
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18 along with Octave; see the file COPYING. If not, write to the Free |
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19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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20 |
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21 */ |
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22 |
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23 #ifdef HAVE_CONFIG_H |
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1192
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24 #include <config.h> |
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523
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25 #endif |
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26 |
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1341
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27 #include <cerrno> |
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28 #include <cstdio> |
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29 #include <cstddef> |
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30 #include <cstdlib> |
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31 #include <cstring> |
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32 |
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1728
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33 #include <string> |
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34 |
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1832
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35 #ifdef HAVE_UNISTD_H |
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2442
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36 #ifdef HAVE_SYS_TYPES_H |
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1832
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37 #include <sys/types.h> |
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2442
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38 #endif |
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1832
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39 #include <unistd.h> |
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40 #endif |
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41 |
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2926
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42 #include "file-ops.h" |
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43 #include "file-stat.h" |
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44 #include "glob-match.h" |
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4051
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45 #include "lo-sstream.h" |
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2926
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46 #include "oct-env.h" |
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1755
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47 #include "str-vec.h" |
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48 |
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1355
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49 #include "defun.h" |
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1781
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50 #include "dir-ops.h" |
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1355
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51 #include "dirfns.h" |
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52 #include "error.h" |
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1402
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53 #include "gripes.h" |
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1750
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54 #include "oct-obj.h" |
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1355
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55 #include "pager.h" |
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56 #include "procstream.h" |
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1750
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57 #include "pt-plot.h" |
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1355
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58 #include "sysdep.h" |
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1750
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59 #include "toplev.h" |
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1449
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60 #include "unwind-prot.h" |
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523
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61 #include "utils.h" |
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1742
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62 #include "variables.h" |
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63 |
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64 // XXX FIXME XXX -- changing the plotter directory should be handled |
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65 // by registering a function for octave_env::chdir to call so that |
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66 // this function can be eliminated. |
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67 |
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1328
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68 static int |
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3523
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69 octave_change_to_directory (const std::string& newdir) |
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1328
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70 { |
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2926
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71 int cd_ok = octave_env::chdir (newdir); |
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72 |
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73 if (cd_ok) |
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74 do_external_plotter_cd (newdir); |
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75 else |
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3531
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76 { |
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77 using namespace std; |
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78 |
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79 error ("%s: %s", newdir.c_str (), strerror (errno)); |
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80 } |
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1328
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81 |
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82 return cd_ok; |
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83 } |
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84 |
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4208
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85 DEFCMD (cd, args, , |
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3301
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86 "-*- texinfo -*-\n\ |
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87 @deffn {Command} cd dir\n\ |
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88 @deffnx {Command} chdir dir\n\ |
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89 Change the current working directory to @var{dir}. If @var{dir} is\n\ |
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90 omitted, the current directory is changed to the users home\n\ |
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91 directory. For example,\n\ |
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92 \n\ |
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93 @example\n\ |
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94 cd ~/octave\n\ |
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95 @end example\n\ |
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96 \n\ |
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97 @noindent\n\ |
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98 Changes the current working directory to @file{~/octave}. If the\n\ |
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99 directory does not exist, an error message is printed and the working\n\ |
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100 directory is not changed.\n\ |
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101 @end deffn") |
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102 { |
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103 octave_value_list retval; |
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104 |
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105 int argc = args.length () + 1; |
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106 |
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1965
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107 string_vector argv = args.make_argv ("cd"); |
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108 |
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109 if (error_state) |
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110 return retval; |
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111 |
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112 if (argc > 1) |
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113 { |
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3523
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114 std::string dirname = file_ops::tilde_expand (argv[1]); |
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115 |
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1750
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116 if (dirname.length () > 0 |
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117 && ! octave_change_to_directory (dirname)) |
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118 { |
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119 return retval; |
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120 } |
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121 } |
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122 else |
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123 { |
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3523
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124 std::string home_dir = octave_env::get_home_directory (); |
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125 |
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126 if (home_dir.empty () || ! octave_change_to_directory (home_dir)) |
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127 return retval; |
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128 } |
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129 |
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130 return retval; |
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131 } |
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132 |
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611
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133 DEFALIAS (chdir, cd); |
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134 |
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661
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135 // Get a directory listing. |
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136 |
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1965
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137 static void |
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138 cleanup_iprocstream (void *p) |
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139 { |
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2800
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140 delete static_cast <iprocstream *> (p); |
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1965
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141 } |
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142 |
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4208
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143 DEFCMD (ls, args, , |
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3301
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144 "-*- texinfo -*-\n\ |
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145 @deffn {Command} ls options\n\ |
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146 @deffnx {Command} dir options\n\ |
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147 List directory contents. For example,\n\ |
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148 \n\ |
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3301
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149 @example\n\ |
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150 ls -l\n\ |
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151 @print{} total 12\n\ |
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152 @print{} -rw-r--r-- 1 jwe users 4488 Aug 19 04:02 foo.m\n\ |
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153 @print{} -rw-r--r-- 1 jwe users 1315 Aug 17 23:14 bar.m\n\ |
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154 @end example\n\ |
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155 \n\ |
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156 The @code{dir} and @code{ls} commands are implemented by calling your\n\ |
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157 system's directory listing command, so the available options may vary\n\ |
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158 from system to system.\n\ |
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159 @end deffn") |
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523
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160 { |
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2086
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161 octave_value_list retval; |
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162 |
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163 int argc = args.length () + 1; |
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164 |
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1965
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165 string_vector argv = args.make_argv ("ls"); |
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166 |
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167 if (error_state) |
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168 return retval; |
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169 |
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4051
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170 OSSTREAM ls_buf; |
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171 |
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172 ls_buf << "ls -C "; |
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173 for (int i = 1; i < argc; i++) |
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2926
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174 ls_buf << file_ops::tilde_expand (argv[i]) << " "; |
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175 |
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4051
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176 ls_buf << OSSTREAM_ENDS; |
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177 |
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4051
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178 iprocstream *cmd = new iprocstream (OSSTREAM_STR (ls_buf)); |
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179 |
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4051
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180 OSSTREAM_FREEZE (ls_buf); |
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1469
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181 |
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2985
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182 unwind_protect::add (cleanup_iprocstream, cmd); |
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183 |
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3147
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184 // XXX FIXME XXX -- sometimes, the subprocess hasn't written |
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185 // anything before we try to read from the procstream. The kluge |
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186 // below (simply waiting and trying again) is ugly, but it seems to |
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187 // work, at least most of the time. It could probably still fail if |
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188 // the subprocess hasn't started writing after the snooze. Isn't |
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189 // there a better way? If there is, you should also fix the code |
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190 // for the system function in toplev.cc. |
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191 |
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1449
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192 if (cmd && *cmd) |
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193 { |
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3147
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194 char ch; |
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195 |
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196 if (cmd->get (ch)) |
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197 octave_stdout << ch; |
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198 else |
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199 { |
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200 cmd->clear (); |
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201 |
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3308
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202 octave_usleep (100); |
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3147
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203 } |
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204 |
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205 while (cmd->get (ch)) |
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206 octave_stdout << ch; |
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1449
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207 } |
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208 else |
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209 error ("couldn't start process for ls!"); |
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210 |
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2985
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211 unwind_protect::run (); |
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212 |
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213 return retval; |
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214 } |
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215 |
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549
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216 DEFALIAS (dir, ls); |
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217 |
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1957
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218 DEFUN (pwd, , nargout, |
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219 "-*- texinfo -*-\n\ |
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220 @deftypefn {Built-in Function} {} pwd ()\n\ |
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221 Return the current working directory.\n\ |
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222 @end deftypefn") |
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223 { |
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4233
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224 octave_value retval; |
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225 |
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3523
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226 std::string directory = octave_env::getcwd (); |
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227 |
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2926
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228 if (directory.empty ()) |
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229 warning ("pwd: can't find working directory!"); |
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230 else |
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231 { |
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1592
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232 if (nargout == 0) |
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2095
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233 octave_stdout << directory << "\n"; |
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1592
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234 else |
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235 retval = directory; |
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523
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236 } |
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1592
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237 |
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238 return retval; |
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239 } |
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240 |
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1957
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241 DEFUN (readdir, args, , |
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3301
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242 "-*- texinfo -*-\n\ |
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243 @deftypefn {Built-in Function} {[@var{files}, @var{err}, @var{msg}] =} readdir (@var{dir})\n\ |
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244 Return names of the files in the directory @var{dir} as an array of\n\ |
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245 strings. If an error occurs, return an empty matrix in @var{files}.\n\ |
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246 \n\ |
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3301
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247 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
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248 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
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249 system-dependent error message.\n\ |
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250 @end deftypefn") |
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1389
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251 { |
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2086
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252 octave_value_list retval; |
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253 |
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3523
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254 retval(2) = std::string (); |
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2669
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255 retval(1) = -1.0; |
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256 retval(0) = Matrix (); |
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257 |
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1401
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258 if (args.length () == 1) |
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1389
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259 { |
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3523
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260 std::string dirname = args(0).string_value (); |
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261 |
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1401
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262 if (error_state) |
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1781
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263 gripe_wrong_type_arg ("readdir", args(0)); |
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1401
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264 else |
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265 { |
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2926
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266 dir_entry dir (file_ops::tilde_expand (dirname)); |
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1389
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267 |
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1401
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268 if (dir) |
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1389
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269 { |
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1781
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270 string_vector dirlist = dir.read (); |
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271 retval(0) = dirlist.qsort (); |
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2669
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272 retval(1) = 0.0; |
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1401
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273 } |
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274 else |
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275 { |
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2669
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276 retval(2) = dir.error (); |
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1401
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277 } |
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1389
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278 } |
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279 } |
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280 else |
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281 print_usage ("readdir"); |
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282 |
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1401
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283 return retval; |
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284 } |
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285 |
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286 // XXX FIXME XXX -- should probably also allow second arg to specify |
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287 // mode. |
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288 |
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1957
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289 DEFUN (mkdir, args, , |
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3301
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290 "-*- texinfo -*-\n\ |
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291 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} mkdir (@var{dir})\\n\ |
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292 Create a directory named @var{dir}.\n\ |
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293 \n\ |
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3301
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294 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
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295 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
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296 system-dependent error message.\n\ |
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297 @end deftypefn") |
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1401
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298 { |
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2086
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299 octave_value_list retval; |
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1401
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300 |
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3523
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301 retval(1) = std::string (); |
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2669
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302 retval(0) = -1.0; |
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1401
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303 |
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304 if (args.length () == 1) |
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305 { |
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3523
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306 std::string dirname = args(0).string_value (); |
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1401
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307 |
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308 if (error_state) |
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1402
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309 gripe_wrong_type_arg ("mkdir", args(0)); |
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1489
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310 else |
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1401
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311 { |
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3523
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312 std::string msg; |
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2669
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313 |
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2926
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314 int status = file_ops::mkdir (file_ops::tilde_expand (dirname), |
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315 0777, msg); |
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1489
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316 |
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4233
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317 retval(0) = status; |
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2669
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318 |
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319 if (status < 0) |
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320 retval(1) = msg; |
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1401
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321 } |
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322 } |
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323 else |
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324 print_usage ("mkdir"); |
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325 |
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326 return retval; |
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327 } |
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328 |
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1957
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329 DEFUN (rmdir, args, , |
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3301
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330 "-*- texinfo -*-\n\ |
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331 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} rmdir (@var{dir})\n\ |
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332 Remove the directory named @var{dir}.\n\ |
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1401
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333 \n\ |
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3301
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334 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
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335 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
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336 system-dependent error message.\n\ |
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337 @end deftypefn") |
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1401
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338 { |
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2086
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339 octave_value_list retval; |
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340 |
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3523
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341 retval(1) = std::string (); |
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2669
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342 retval(0) = -1.0; |
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1401
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343 |
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344 if (args.length () == 1) |
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345 { |
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3523
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346 std::string dirname = args(0).string_value (); |
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1401
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347 |
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348 if (error_state) |
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1402
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349 gripe_wrong_type_arg ("rmdir", args(0)); |
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1489
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350 else |
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1401
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351 { |
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3523
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352 std::string msg; |
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2669
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353 |
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2926
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354 int status = file_ops::rmdir (file_ops::tilde_expand (dirname), msg); |
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1489
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355 |
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4233
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356 retval(0) = status; |
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2669
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357 |
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358 if (status < 0) |
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359 retval(1) = msg; |
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1401
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360 } |
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361 } |
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1389
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362 else |
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1401
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363 print_usage ("rmdir"); |
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364 |
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365 return retval; |
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366 } |
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367 |
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3710
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368 DEFUN (link, args, , |
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369 "-*- texinfo -*-\n\ |
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370 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} link (@var{old}, @var{new})\n\ |
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371 Create a new link (also known as a hard link) to an existing file.\n\ |
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372 \n\ |
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373 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
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374 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
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375 system-dependent error message.\n\ |
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376 @end deftypefn") |
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377 { |
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378 octave_value_list retval; |
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379 |
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380 retval(1) = std::string (); |
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381 retval(0) = -1.0; |
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382 |
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383 if (args.length () == 2) |
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384 { |
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385 std::string from = args(0).string_value (); |
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386 |
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387 if (error_state) |
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388 gripe_wrong_type_arg ("link", args(0)); |
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389 else |
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390 { |
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391 std::string to = args(1).string_value (); |
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392 |
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393 if (error_state) |
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394 gripe_wrong_type_arg ("link", args(1)); |
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395 else |
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396 { |
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397 std::string msg; |
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398 |
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399 int status = file_ops::link (from, to, msg); |
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400 |
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4233
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401 retval(0) = status; |
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3710
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402 |
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403 if (status < 0) |
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404 retval(1) = msg; |
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405 } |
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406 } |
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407 } |
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408 else |
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409 print_usage ("link"); |
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410 |
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411 return retval; |
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412 } |
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413 |
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414 DEFUN (symlink, args, , |
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415 "-*- texinfo -*-\n\ |
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416 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} symlink (@var{old}, @var{new})\n\ |
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417 Create a symbolic link @var{new} which contains the string @var{old}.\n\ |
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418 \n\ |
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419 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
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420 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
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421 system-dependent error message.\n\ |
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422 @end deftypefn") |
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|
423 { |
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|
424 octave_value_list retval; |
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425 |
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426 retval(1) = std::string (); |
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427 retval(0) = -1.0; |
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428 |
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429 if (args.length () == 2) |
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430 { |
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431 std::string from = args(0).string_value (); |
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432 |
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433 if (error_state) |
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434 gripe_wrong_type_arg ("symlink", args(0)); |
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|
435 else |
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436 { |
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|
437 std::string to = args(1).string_value (); |
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438 |
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|
439 if (error_state) |
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|
440 gripe_wrong_type_arg ("symlink", args(1)); |
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|
441 else |
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442 { |
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443 std::string msg; |
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444 |
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|
445 int status = file_ops::symlink (from, to, msg); |
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446 |
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4233
|
447 retval(0) = status; |
|
3710
|
448 |
|
|
449 if (status < 0) |
|
|
450 retval(1) = msg; |
|
|
451 } |
|
|
452 } |
|
|
453 } |
|
|
454 else |
|
|
455 print_usage ("symlink"); |
|
|
456 |
|
|
457 return retval; |
|
|
458 } |
|
|
459 |
|
|
460 DEFUN (readlink, args, , |
|
|
461 "-*- texinfo -*-\n\ |
|
4169
|
462 @deftypefn {Built-in Function} {[@var{result}, @var{err}, @var{msg}] =} readlink (@var{symlink})\n\ |
|
3710
|
463 Read the value of the symbolic link @var{symlink}.\n\ |
|
|
464 \n\ |
|
|
465 If successful, @var{result} contains the contents of the symbolic link\n\ |
|
|
466 @var{symlink}, @var{err} is 0 and @var{msg} is an empty string.\n\ |
|
|
467 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
|
|
468 system-dependent error message.\n\ |
|
|
469 @end deftypefn") |
|
|
470 { |
|
|
471 octave_value_list retval; |
|
|
472 |
|
|
473 retval(2) = std::string (); |
|
|
474 retval(1) = -1.0; |
|
|
475 retval(0) = std::string (); |
|
|
476 |
|
|
477 if (args.length () == 1) |
|
|
478 { |
|
|
479 std::string symlink = args(0).string_value (); |
|
|
480 |
|
|
481 if (error_state) |
|
|
482 gripe_wrong_type_arg ("readlink", args(0)); |
|
|
483 else |
|
|
484 { |
|
|
485 std::string result; |
|
|
486 std::string msg; |
|
|
487 |
|
|
488 int status = file_ops::readlink (symlink, result, msg); |
|
|
489 |
|
|
490 retval(0) = result; |
|
|
491 |
|
4233
|
492 retval(1) = status; |
|
3710
|
493 |
|
|
494 if (status < 0) |
|
|
495 retval(2) = msg; |
|
|
496 } |
|
|
497 } |
|
|
498 else |
|
|
499 print_usage ("readlink"); |
|
|
500 |
|
|
501 return retval; |
|
|
502 } |
|
|
503 |
|
1957
|
504 DEFUN (rename, args, , |
|
3301
|
505 "-*- texinfo -*-\n\ |
|
|
506 @deftypefn {Built-in Function} {[@var{err}, @var{msg}] =} rename (@var{old}, @var{new})\n\ |
|
|
507 Change the name of file @var{old} to @var{new}.\n\ |
|
1401
|
508 \n\ |
|
3301
|
509 If successful, @var{err} is 0 and @var{msg} is an empty string.\n\ |
|
|
510 Otherwise, @var{err} is nonzero and @var{msg} contains a\n\ |
|
|
511 system-dependent error message.\n\ |
|
|
512 @end deftypefn") |
|
1401
|
513 { |
|
2086
|
514 octave_value_list retval; |
|
1401
|
515 |
|
3523
|
516 retval(1) = std::string (); |
|
2669
|
517 retval(0) = -1.0; |
|
1401
|
518 |
|
|
519 if (args.length () == 2) |
|
|
520 { |
|
3523
|
521 std::string from = args(0).string_value (); |
|
1728
|
522 |
|
1401
|
523 if (error_state) |
|
1402
|
524 gripe_wrong_type_arg ("rename", args(0)); |
|
|
525 else |
|
1401
|
526 { |
|
3523
|
527 std::string to = args(1).string_value (); |
|
1728
|
528 |
|
1402
|
529 if (error_state) |
|
|
530 gripe_wrong_type_arg ("rename", args(1)); |
|
2669
|
531 else |
|
1402
|
532 { |
|
3523
|
533 std::string msg; |
|
2669
|
534 |
|
2926
|
535 int status = file_ops::rename (from, to, msg); |
|
2669
|
536 |
|
4233
|
537 retval(0) = status; |
|
2669
|
538 |
|
|
539 if (status < 0) |
|
|
540 retval(1) = msg; |
|
1402
|
541 } |
|
1401
|
542 } |
|
|
543 } |
|
|
544 else |
|
|
545 print_usage ("rename"); |
|
|
546 |
|
1389
|
547 return retval; |
|
|
548 } |
|
|
549 |
|
2495
|
550 DEFUN (glob, args, , |
|
3301
|
551 "-*- texinfo -*-\n\ |
|
|
552 @deftypefn {Built-in Function} {} glob (@var{pattern})\n\ |
|
|
553 Given an array of strings in @var{pattern}, return the list of file\n\ |
|
3690
|
554 names that match any of them, or an empty string if no patterns match.\n\ |
|
|
555 Tilde expansion is performed on each of the patterns before looking for\n\ |
|
3301
|
556 matching file names. For example,\n\ |
|
2495
|
557 \n\ |
|
3301
|
558 @example\n\ |
|
|
559 @group\n\ |
|
|
560 glob (\"/vm*\")\n\ |
|
|
561 @result{} \"/vmlinuz\"\n\ |
|
|
562 @end group\n\ |
|
|
563 @end example\n\ |
|
|
564 \n\ |
|
|
565 Note that multiple values are returned in a string matrix with the fill\n\ |
|
|
566 character set to ASCII NUL.\n\ |
|
|
567 @end deftypefn") |
|
2495
|
568 { |
|
|
569 octave_value retval; |
|
|
570 |
|
|
571 if (args.length () == 1) |
|
|
572 { |
|
|
573 string_vector pat = args(0).all_strings (); |
|
|
574 |
|
|
575 if (error_state) |
|
|
576 gripe_wrong_type_arg ("glob", args(0)); |
|
|
577 else |
|
|
578 { |
|
2926
|
579 glob_match pattern (file_ops::tilde_expand (pat)); |
|
2495
|
580 |
|
|
581 string_vector list = pattern.glob (); |
|
|
582 |
|
|
583 if (list.empty ()) |
|
|
584 retval = ""; |
|
|
585 else |
|
|
586 retval = list; |
|
|
587 } |
|
|
588 } |
|
|
589 else |
|
|
590 print_usage ("glob"); |
|
|
591 |
|
|
592 return retval; |
|
|
593 } |
|
|
594 |
|
2496
|
595 DEFUN (fnmatch, args, , |
|
3301
|
596 "-*- texinfo -*-\n\ |
|
|
597 @deftypefn {Built-in Function} {} fnmatch (@var{pattern}, @var{string})\n\ |
|
|
598 Return 1 or zero for each element of @var{string} that matches any of\n\ |
|
|
599 the elements of the string array @var{pattern}, using the rules of\n\ |
|
|
600 filename pattern matching. For example,\n\ |
|
2496
|
601 \n\ |
|
3301
|
602 @example\n\ |
|
|
603 @group\n\ |
|
|
604 fnmatch (\"a*b\", [\"ab\"; \"axyzb\"; \"xyzab\"])\n\ |
|
|
605 @result{} [ 1; 1; 0 ]\n\ |
|
|
606 @end group\n\ |
|
|
607 @end example\n\ |
|
|
608 @end deftypefn") |
|
2496
|
609 { |
|
|
610 octave_value retval; |
|
|
611 |
|
|
612 if (args.length () == 2) |
|
|
613 { |
|
|
614 string_vector pat = args(0).all_strings (); |
|
|
615 string_vector str = args(1).all_strings (); |
|
|
616 |
|
|
617 if (error_state) |
|
|
618 gripe_wrong_type_arg ("fnmatch", args(0)); |
|
|
619 else |
|
|
620 { |
|
2926
|
621 glob_match pattern (file_ops::tilde_expand (pat)); |
|
2496
|
622 |
|
|
623 Array<bool> tmp = pattern.match (str); |
|
|
624 |
|
|
625 int n = tmp.length (); |
|
|
626 |
|
|
627 ColumnVector result (n); |
|
|
628 |
|
|
629 for (int i = 0; i < n; i++) |
|
|
630 result(i) = tmp(i); |
|
|
631 |
|
3418
|
632 retval = result; |
|
2496
|
633 } |
|
|
634 } |
|
|
635 else |
|
|
636 print_usage ("fnmatch"); |
|
|
637 |
|
|
638 return retval; |
|
|
639 } |
|
|
640 |
|
4264
|
641 void |
|
|
642 symbols_of_dirfns (void) |
|
|
643 { |
|
|
644 DEFCONST (filesep, file_ops::dir_sep_str, |
|
|
645 "-*- texinfo -*-\n\ |
|
|
646 @defvr {Built-in Variable} filesep\n\ |
|
|
647 The character used to separate directory names. The value\n\ |
|
|
648 of this variable is system dependent.\n\ |
|
|
649 @end defvr"); |
|
|
650 |
|
|
651 } |
|
|
652 |
|
523
|
653 /* |
|
|
654 ;;; Local Variables: *** |
|
|
655 ;;; mode: C++ *** |
|
|
656 ;;; End: *** |
|
|
657 */ |
