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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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
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20 02110-1301, USA. |
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21 |
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22 */ |
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23 |
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24 #ifdef HAVE_CONFIG_H |
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25 #include <config.h> |
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26 #endif |
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27 |
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28 #include <cstdlib> |
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29 |
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30 #include <iostream> |
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31 #include <string> |
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32 |
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33 #ifdef HAVE_UNISTD_H |
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2442
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34 #ifdef HAVE_SYS_TYPES_H |
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35 #include <sys/types.h> |
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2442
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36 #endif |
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37 #include <unistd.h> |
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38 #endif |
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39 |
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2926
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40 #include "oct-env.h" |
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4217
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41 #include "file-stat.h" |
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3174
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42 #include "pathsearch.h" |
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4217
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43 #include "str-vec.h" |
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44 |
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45 #include <defaults.h> |
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46 #include "defun.h" |
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47 #include "error.h" |
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3040
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48 #include "file-ops.h" |
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49 #include "gripes.h" |
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50 #include "help.h" |
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5395
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51 #include "input.h" |
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3185
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52 #include "oct-obj.h" |
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2390
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53 #include "ov.h" |
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4217
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54 #include "parse.h" |
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55 #include "toplev.h" |
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56 #include "unwind-prot.h" |
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2203
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57 #include "variables.h" |
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2492
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58 #include <version.h> |
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59 |
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3523
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60 std::string Voctave_home; |
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61 |
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62 std::string Vbin_dir; |
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63 std::string Vinfo_dir; |
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64 std::string Vdata_dir; |
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65 std::string Vlibexec_dir; |
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66 std::string Varch_lib_dir; |
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67 std::string Vlocal_arch_lib_dir; |
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68 std::string Vlocal_ver_arch_lib_dir; |
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69 std::string Vfcn_file_dir; |
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70 std::string Voct_file_dir; |
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71 |
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4447
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72 // The default path that will be searched for programs that we |
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73 // execute (in addition to the user-specified --exec-path). |
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74 static std::string Vdefault_exec_path; |
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75 |
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76 // The path that will be searched for programs that we execute. |
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77 // (--exec-path path) |
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78 std::string Vexec_path; |
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79 |
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80 // Load path specified on command line. |
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81 // (--path path; -p path) |
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82 static std::string Vload_path; |
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83 |
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3192
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84 // The default load path with OCTAVE_HOME appropriately substituted. |
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85 static std::string Vdefault_load_path; |
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3192
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86 |
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3174
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87 // And the cached directory path corresponding to Vload_path. |
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88 dir_path Vload_path_dir_path; |
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89 |
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90 // Name of the editor to be invoked by the edit_history command. |
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91 std::string Veditor; |
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92 |
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93 std::string Vimagepath; |
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94 |
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95 std::string Vlocal_site_defaults_file; |
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96 std::string Vsite_defaults_file; |
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97 |
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98 // Name of the FFTW wisdom program. |
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99 std::string Vfftw_wisdom_prog; |
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100 |
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101 // Each element of A and B should be directory names. For each |
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102 // element of A not in the list B, execute SCRIPT_FILE in that |
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103 // directory if it exists. |
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104 |
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105 static void |
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106 maybe_add_or_del_packages (const string_vector& a, |
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107 const string_vector& b, |
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108 const std::string& script_file) |
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4217
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109 { |
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110 if (! octave_interpreter_ready) |
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111 return; |
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112 |
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113 unwind_protect::begin_frame ("maybe_add_or_del_packages"); |
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114 |
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115 unwind_protect_bool (input_from_startup_file); |
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116 |
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117 input_from_startup_file = true; |
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118 |
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119 octave_idx_type a_len = a.length (); |
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120 octave_idx_type b_len = b.length (); |
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121 |
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5275
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122 for (octave_idx_type i = 0; i < a_len; i++) |
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123 { |
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124 std::string a_dir = a[i]; |
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125 |
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126 bool found = false; |
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127 |
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5275
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128 for (octave_idx_type j = 0; j < b_len; j++) |
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4217
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129 { |
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130 if (b[j] == a_dir) |
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131 { |
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132 found = true; |
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133 break; |
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134 } |
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135 } |
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136 |
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137 if (! found) |
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138 { |
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139 std::string file = a_dir + file_ops::dir_sep_str + script_file; |
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140 |
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141 file_stat fs = file_stat (file); |
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142 |
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143 if (fs.exists ()) |
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4486
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144 source_file (file); |
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4217
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145 |
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146 if (error_state) |
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147 return; |
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148 } |
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149 } |
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150 |
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151 unwind_protect::run_frame ("maybe_add_or_del_packages"); |
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152 } |
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153 |
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154 static void |
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155 update_load_path_dir_path (void) |
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156 { |
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157 string_vector old_dirs = Vload_path_dir_path.all_directories (); |
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158 |
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159 Vload_path_dir_path = dir_path (Vload_path, Vdefault_load_path); |
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160 |
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161 string_vector new_dirs = Vload_path_dir_path.all_directories (); |
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162 |
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163 maybe_add_or_del_packages (old_dirs, new_dirs, "PKG_DEL"); |
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164 |
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165 if (! error_state) |
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166 maybe_add_or_del_packages (new_dirs, old_dirs, "PKG_ADD"); |
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167 } |
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168 |
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169 void |
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170 execute_default_pkg_add_files (void) |
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171 { |
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172 string_vector old_dirs; |
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173 string_vector new_dirs = Vload_path_dir_path.all_directories (); |
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174 |
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175 maybe_add_or_del_packages (new_dirs, old_dirs, "PKG_ADD"); |
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176 } |
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177 |
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3535
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178 static std::string |
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3523
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179 subst_octave_home (const std::string& s) |
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180 { |
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3523
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181 std::string retval; |
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182 |
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3523
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183 std::string prefix = OCTAVE_PREFIX; |
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184 |
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185 retval = s; |
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186 |
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187 if (Voctave_home != prefix) |
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188 { |
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189 octave_idx_type len = prefix.length (); |
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2203
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190 size_t start = 0; |
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2522
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191 while ((start = retval.find (prefix, start)) != NPOS) |
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2203
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192 { |
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193 retval.replace (start, len, Voctave_home); |
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194 start += len; |
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195 } |
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196 } |
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197 |
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198 return retval; |
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199 } |
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200 |
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201 static void |
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202 set_octave_home (void) |
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203 { |
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204 std::string oh = octave_env::getenv ("OCTAVE_HOME"); |
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205 |
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206 Voctave_home = oh.empty () ? std::string (OCTAVE_PREFIX) : oh; |
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207 } |
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208 |
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209 static void |
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210 set_default_info_dir (void) |
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211 { |
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212 Vinfo_dir = subst_octave_home (OCTAVE_INFODIR); |
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213 } |
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214 |
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215 static void |
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3141
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216 set_default_data_dir (void) |
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217 { |
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218 Vdata_dir = subst_octave_home (OCTAVE_DATADIR); |
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219 } |
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220 |
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221 static void |
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222 set_default_libexec_dir (void) |
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223 { |
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224 Vlibexec_dir = subst_octave_home (OCTAVE_LIBEXECDIR); |
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225 } |
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226 |
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227 static void |
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228 set_default_arch_lib_dir (void) |
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229 { |
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230 Varch_lib_dir = subst_octave_home (OCTAVE_ARCHLIBDIR); |
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231 } |
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232 |
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233 static void |
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2439
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234 set_default_local_arch_lib_dir (void) |
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235 { |
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236 Vlocal_arch_lib_dir = subst_octave_home (OCTAVE_LOCALARCHLIBDIR); |
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237 } |
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238 |
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239 static void |
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240 set_default_local_ver_arch_lib_dir (void) |
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241 { |
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242 Vlocal_ver_arch_lib_dir = subst_octave_home (OCTAVE_LOCALVERARCHLIBDIR); |
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243 } |
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244 |
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245 static void |
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246 set_default_fcn_file_dir (void) |
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247 { |
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248 Vfcn_file_dir = subst_octave_home (OCTAVE_FCNFILEDIR); |
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249 } |
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250 |
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251 static void |
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252 set_default_oct_file_dir (void) |
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253 { |
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254 Voct_file_dir = subst_octave_home (OCTAVE_OCTFILEDIR); |
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255 } |
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256 |
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257 static void |
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2203
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258 set_default_bin_dir (void) |
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259 { |
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260 Vbin_dir = subst_octave_home (OCTAVE_BINDIR); |
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261 } |
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262 |
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263 static void |
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264 set_default_default_exec_path (void) |
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265 { |
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266 Vdefault_exec_path |
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267 = Vlocal_ver_arch_lib_dir + std::string (SEPCHAR_STR) |
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268 + Vlocal_arch_lib_dir + std::string (SEPCHAR_STR) |
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269 + Varch_lib_dir + std::string (SEPCHAR_STR) |
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270 + Vbin_dir; |
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271 } |
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272 |
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273 static void |
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274 set_default_exec_path (void) |
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275 { |
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3523
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276 std::string octave_exec_path = octave_env::getenv ("OCTAVE_EXEC_PATH"); |
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277 |
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2926
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278 if (octave_exec_path.empty ()) |
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279 { |
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3523
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280 std::string shell_path = octave_env::getenv ("PATH"); |
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281 |
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2926
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282 if (! shell_path.empty ()) |
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2203
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283 { |
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284 Vexec_path = std::string (SEPCHAR_STR); |
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285 Vexec_path.append (shell_path); |
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286 } |
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287 } |
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2926
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288 else |
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289 Vexec_path = std::string (octave_exec_path); |
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290 } |
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291 |
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292 static void |
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293 set_default_path (void) |
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294 { |
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3192
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295 Vdefault_load_path = subst_octave_home (OCTAVE_FCNFILEPATH); |
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2203
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296 |
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3523
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297 std::string oct_path = octave_env::getenv ("OCTAVE_PATH"); |
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2203
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298 |
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5451
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299 Vload_path = oct_path.empty () ? std::string (SEPCHAR_STR) : oct_path; |
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3174
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300 |
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4217
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301 update_load_path_dir_path (); |
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2203
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302 } |
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303 |
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304 static void |
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305 set_default_info_file (void) |
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306 { |
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3523
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307 std::string std_info_file = subst_octave_home (OCTAVE_INFOFILE); |
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2512
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308 |
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3523
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309 std::string oct_info_file = octave_env::getenv ("OCTAVE_INFO_FILE"); |
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2203
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310 |
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2926
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311 Vinfo_file = oct_info_file.empty () ? std_info_file : oct_info_file; |
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2203
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312 } |
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313 |
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314 static void |
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315 set_default_info_prog (void) |
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316 { |
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3523
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317 std::string oct_info_prog = octave_env::getenv ("OCTAVE_INFO_PROGRAM"); |
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2203
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318 |
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2926
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319 if (oct_info_prog.empty ()) |
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3141
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320 Vinfo_prog = "info"; |
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2926
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321 else |
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3523
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322 Vinfo_prog = std::string (oct_info_prog); |
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2203
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323 } |
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324 |
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4773
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325 static void |
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4776
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326 set_default_fftw_wisdom_prog (void) |
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4773
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327 { |
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4776
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328 std::string oct_wisdom_prog = octave_env::getenv ("OCTAVE_FFTW_WISDOM_PROGRAM"); |
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4773
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329 |
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330 if (oct_wisdom_prog.empty ()) |
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331 Vfftw_wisdom_prog = "fftw-wisdom"; |
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4773
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332 else |
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4776
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333 Vfftw_wisdom_prog = std::string (oct_wisdom_prog); |
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4773
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334 } |
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335 |
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2203
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336 static void |
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337 set_default_editor (void) |
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338 { |
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2993
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339 Veditor = "emacs"; |
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2203
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340 |
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3523
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341 std::string env_editor = octave_env::getenv ("EDITOR"); |
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2203
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342 |
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2926
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343 if (! env_editor.empty ()) |
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344 Veditor = env_editor; |
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2203
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345 } |
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346 |
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347 static void |
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348 set_local_site_defaults_file (void) |
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349 { |
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350 Vlocal_site_defaults_file = subst_octave_home (OCTAVE_LOCALSTARTUPFILEDIR); |
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351 Vlocal_site_defaults_file.append ("/octaverc"); |
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352 } |
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353 |
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354 static void |
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355 set_site_defaults_file (void) |
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356 { |
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357 Vsite_defaults_file = subst_octave_home (OCTAVE_STARTUPFILEDIR); |
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358 Vsite_defaults_file.append ("/octaverc"); |
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359 } |
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360 |
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3534
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361 std::string |
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3523
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362 maybe_add_default_load_path (const std::string& pathstring) |
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2203
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363 { |
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3523
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364 std::string retval; |
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2203
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365 |
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366 if (! pathstring.empty ()) |
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367 { |
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368 if (pathstring[0] == SEPCHAR) |
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369 { |
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3192
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370 retval = Vdefault_load_path; |
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2203
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371 retval.append (pathstring); |
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372 } |
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373 else |
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374 retval = pathstring; |
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375 |
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376 if (pathstring[pathstring.length () - 1] == SEPCHAR) |
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3192
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377 retval.append (Vdefault_load_path); |
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378 |
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379 size_t pos = 0; |
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380 do |
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381 { |
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5451
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382 pos = retval.find (std::string (SEPCHAR_STR) + |
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383 std::string (SEPCHAR_STR)); |
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3192
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384 |
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385 if (pos != NPOS) |
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386 retval.insert (pos+1, Vdefault_load_path); |
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387 } |
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388 while (pos != NPOS); |
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2203
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389 } |
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390 |
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391 return retval; |
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392 } |
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393 |
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394 void |
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395 install_defaults (void) |
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396 { |
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397 // OCTAVE_HOME must be set first! |
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398 |
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399 set_octave_home (); |
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400 |
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401 set_default_info_dir (); |
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402 |
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3141
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403 set_default_data_dir (); |
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404 |
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405 set_default_libexec_dir (); |
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406 |
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2203
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407 set_default_arch_lib_dir (); |
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408 |
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2439
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409 set_default_local_arch_lib_dir (); |
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410 |
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3597
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411 set_default_local_ver_arch_lib_dir (); |
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412 |
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2203
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413 set_default_fcn_file_dir (); |
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414 |
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5397
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415 set_default_oct_file_dir (); |
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416 |
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2203
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417 set_default_bin_dir (); |
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418 |
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4447
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419 set_default_default_exec_path (); |
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420 |
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2203
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421 set_default_exec_path (); |
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422 |
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423 set_default_path (); |
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424 |
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425 set_default_info_file (); |
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426 |
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427 set_default_info_prog (); |
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428 |
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4776
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429 set_default_fftw_wisdom_prog (); |
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4773
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430 |
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2203
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431 set_default_editor (); |
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432 |
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433 set_local_site_defaults_file (); |
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434 |
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435 set_site_defaults_file (); |
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436 } |
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437 |
|
4264
|
438 DEFUN (rehash, , , |
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439 "-*- texinfo -*-\n\ |
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440 @deftypefn {Built-in Function} {} rehash ()\n\ |
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441 Reinitialize Octave's @code{LOADPATH} directory cache.\n\ |
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442 @end deftypefn") |
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443 { |
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444 octave_value_list retval; |
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445 |
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446 Vload_path_dir_path.rehash (); |
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447 |
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448 return retval; |
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449 } |
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450 |
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2203
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451 static int |
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452 editor (void) |
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453 { |
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454 int status = 0; |
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455 |
|
3523
|
456 std::string s = builtin_string_variable ("EDITOR"); |
|
2203
|
457 |
|
|
458 if (s.empty ()) |
|
|
459 { |
|
|
460 gripe_invalid_value_specified ("EDITOR"); |
|
|
461 status = -1; |
|
|
462 } |
|
|
463 else |
|
|
464 Veditor = s; |
|
|
465 |
|
|
466 return status; |
|
|
467 } |
|
|
468 |
|
|
469 static int |
|
|
470 exec_path (void) |
|
|
471 { |
|
|
472 int status = 0; |
|
|
473 |
|
3523
|
474 std::string s = builtin_string_variable ("EXEC_PATH"); |
|
2439
|
475 |
|
|
476 if (s.empty ()) |
|
2203
|
477 { |
|
|
478 gripe_invalid_value_specified ("EXEC_PATH"); |
|
|
479 status = -1; |
|
|
480 } |
|
|
481 else |
|
|
482 { |
|
2439
|
483 Vexec_path = s; |
|
|
484 |
|
3523
|
485 std::string path; |
|
2203
|
486 |
|
|
487 int eplen = Vexec_path.length (); |
|
|
488 |
|
|
489 if (eplen > 0) |
|
|
490 { |
|
2926
|
491 bool prepend = (Vexec_path[0] == ':'); |
|
|
492 bool append = (eplen > 1 && Vexec_path[eplen-1] == ':'); |
|
2203
|
493 |
|
|
494 if (prepend) |
|
|
495 { |
|
4447
|
496 path = Vdefault_exec_path + Vexec_path; |
|
2203
|
497 } |
|
|
498 else |
|
|
499 { |
|
2926
|
500 path = Vexec_path; |
|
|
501 |
|
2203
|
502 if (append) |
|
4447
|
503 path.append (Vdefault_exec_path); |
|
2203
|
504 } |
|
|
505 } |
|
|
506 else |
|
4447
|
507 path = Vdefault_exec_path; |
|
2203
|
508 |
|
2926
|
509 octave_env::putenv ("PATH", path); |
|
2203
|
510 } |
|
|
511 |
|
|
512 return status; |
|
|
513 } |
|
|
514 |
|
4773
|
515 static int |
|
4776
|
516 fftw_wisdom_prog (void) |
|
4773
|
517 { |
|
|
518 int status = 0; |
|
|
519 |
|
4776
|
520 std::string s = builtin_string_variable ("FFTW_WISDOM_PROGRAM"); |
|
4773
|
521 |
|
|
522 if (s.empty ()) |
|
|
523 { |
|
4776
|
524 gripe_invalid_value_specified ("FFTW_WISDOM_PROGRAM"); |
|
4773
|
525 status = -1; |
|
|
526 } |
|
|
527 else |
|
4776
|
528 Vfftw_wisdom_prog = s; |
|
4773
|
529 |
|
|
530 return status; |
|
|
531 } |
|
|
532 |
|
2203
|
533 static int |
|
4447
|
534 default_exec_path (void) |
|
|
535 { |
|
|
536 int status = 0; |
|
|
537 |
|
|
538 std::string s = builtin_string_variable ("DEFAULT_EXEC_PATH"); |
|
|
539 |
|
|
540 if (s.empty ()) |
|
|
541 { |
|
|
542 gripe_invalid_value_specified ("DEFAULT_EXEC_PATH"); |
|
|
543 status = -1; |
|
|
544 } |
|
|
545 else |
|
|
546 { |
|
|
547 Vdefault_exec_path = s; |
|
|
548 |
|
|
549 // Now also update PATH in environment. |
|
|
550 exec_path (); |
|
|
551 } |
|
|
552 |
|
|
553 return status; |
|
|
554 } |
|
|
555 |
|
|
556 static int |
|
2203
|
557 imagepath (void) |
|
|
558 { |
|
|
559 int status = 0; |
|
|
560 |
|
3523
|
561 std::string s = builtin_string_variable ("IMAGEPATH"); |
|
2203
|
562 |
|
|
563 if (s.empty ()) |
|
|
564 { |
|
|
565 gripe_invalid_value_specified ("IMAGEPATH"); |
|
|
566 status = -1; |
|
|
567 } |
|
|
568 else |
|
|
569 Vimagepath = s; |
|
|
570 |
|
|
571 return status; |
|
|
572 } |
|
|
573 |
|
|
574 static int |
|
|
575 loadpath (void) |
|
|
576 { |
|
|
577 int status = 0; |
|
|
578 |
|
3523
|
579 std::string s = builtin_string_variable ("LOADPATH"); |
|
2203
|
580 |
|
|
581 if (s.empty ()) |
|
|
582 { |
|
|
583 gripe_invalid_value_specified ("LOADPATH"); |
|
|
584 status = -1; |
|
|
585 } |
|
5395
|
586 else if (Vload_path != s) |
|
3174
|
587 { |
|
3971
|
588 // I'm not sure whether this causes more problems that it |
|
|
589 // solves... |
|
|
590 // if (! (s[0] == ':' || s[s.length () - 1] == ':' |
|
5451
|
591 // || s.find (std::string (SEPCHAR_STR) + |
|
|
592 // std::string (SEPCHAR_STR)) != NPOS)) |
|
3971
|
593 // warning ("LOADPATH will ignore default load path"); |
|
3967
|
594 |
|
3195
|
595 Vload_path = s; |
|
3174
|
596 |
|
5395
|
597 // By resetting the last prompt time variable, we will force |
|
|
598 // checks for out of date symbols even if the change to LOADPATH |
|
|
599 // and subsequent function calls happen between prompts. |
|
|
600 |
|
|
601 // XXX FIXME XXX -- maybe we should rename |
|
|
602 // Vlast_prompt_time_stamp since the new usage doesn't really |
|
|
603 // fit with the current name? |
|
|
604 |
|
|
605 Vlast_prompt_time.stamp (); |
|
|
606 |
|
4217
|
607 update_load_path_dir_path (); |
|
|
608 } |
|
|
609 |
|
|
610 return status; |
|
|
611 } |
|
|
612 |
|
|
613 static int |
|
|
614 default_load_path (void) |
|
|
615 { |
|
|
616 int status = 0; |
|
|
617 |
|
|
618 std::string s = builtin_string_variable ("DEFAULT_LOADPATH"); |
|
|
619 |
|
|
620 if (s.empty ()) |
|
|
621 { |
|
|
622 gripe_invalid_value_specified ("DEFAULT_LOADPATH"); |
|
|
623 status = -1; |
|
|
624 } |
|
|
625 else |
|
|
626 { |
|
|
627 Vdefault_load_path = s; |
|
|
628 |
|
|
629 update_load_path_dir_path (); |
|
3174
|
630 } |
|
2203
|
631 |
|
|
632 return status; |
|
|
633 } |
|
|
634 |
|
|
635 void |
|
|
636 symbols_of_defaults (void) |
|
|
637 { |
|
3258
|
638 DEFVAR (EDITOR, Veditor, editor, |
|
3368
|
639 "-*- texinfo -*-\n\ |
|
|
640 @defvr {Built-in Variable} EDITOR\n\ |
|
|
641 A string naming the editor to use with the @code{edit_history} command.\n\ |
|
|
642 If the environment variable @code{EDITOR} is set when Octave starts, its\n\ |
|
|
643 value is used as the default. Otherwise, @code{EDITOR} is set to\n\ |
|
|
644 @code{\"emacs\"}.\n\ |
|
|
645 @end defvr"); |
|
2203
|
646 |
|
4776
|
647 DEFVAR (FFTW_WISDOM_PROGRAM, Vfftw_wisdom_prog, fftw_wisdom_prog, |
|
4773
|
648 "-*- texinfo -*-\n\ |
|
4776
|
649 @defvr {Built-in Variable} FFTW_WISDOM_PROGRAM\n\ |
|
4773
|
650 A string naming the FFTW wisdom program to use to create wisdom data\n\ |
|
|
651 to accelerate Fourier transforms. If the environment variable\n\ |
|
|
652 @code{OCTAVE_WISDOM_PROGRAM} is set when Octave starts, its value is used\n\ |
|
|
653 as the default. Otherwise, @code{WISDOM_PROGRAM} is set to\n\ |
|
|
654 @code{\"fftw-wisdom\"}.\n\ |
|
|
655 @end defvr"); |
|
|
656 |
|
3258
|
657 DEFVAR (EXEC_PATH, Vexec_path, exec_path, |
|
3301
|
658 "-*- texinfo -*-\n\ |
|
|
659 @defvr {Built-in Variable} EXEC_PATH\n\ |
|
|
660 The variable @code{EXEC_PATH} is a colon separated list of directories\n\ |
|
4447
|
661 to search when executing external programs. Its initial value is taken from\n\ |
|
3301
|
662 the environment variable @code{OCTAVE_EXEC_PATH} (if it exists) or\n\ |
|
|
663 @code{PATH}, but that value can be overridden by the command line\n\ |
|
|
664 argument @code{--exec-path PATH}, or by setting the value of\n\ |
|
|
665 @code{EXEC_PATH} in a startup script. If the value of @code{EXEC_PATH}\n\ |
|
|
666 begins (ends) with a colon, the directories\n\ |
|
|
667 \n\ |
|
|
668 @example\n\ |
|
|
669 @group\n\ |
|
|
670 @var{octave-home}/libexec/octave/site/exec/@var{arch}\n\ |
|
|
671 @var{octave-home}/libexec/octave/@var{version}/exec/@var{arch}\n\ |
|
|
672 @end group\n\ |
|
|
673 @end example\n\ |
|
|
674 \n\ |
|
|
675 @noindent\n\ |
|
|
676 are prepended (appended) to @code{EXEC_PATH}, where @var{octave-home}\n\ |
|
|
677 is the top-level directory where all of Octave is installed\n\ |
|
|
678 (the default value is @file{@value{OCTAVEHOME}}). If you don't specify\n\ |
|
|
679 a value for @code{EXEC_PATH} explicitly, these special directories are\n\ |
|
|
680 prepended to your shell path.\n\ |
|
|
681 @end defvr"); |
|
2203
|
682 |
|
4447
|
683 DEFVAR (DEFAULT_EXEC_PATH, Vdefault_exec_path, default_exec_path, |
|
|
684 "-*- texinfo -*-\n\ |
|
|
685 @defvr {Built-in Variable} DEFAULT_EXEC_PATH\n\ |
|
|
686 A colon separated list of directories in which to search when executing\n\ |
|
|
687 external programs. The value of this variable is automatically\n\ |
|
|
688 substituted for leading, trailing, or doubled colons that appear in the\n\ |
|
|
689 built-in variable @code{EXEC_PATH}.\n\ |
|
|
690 @end defvr"); |
|
4773
|
691 |
|
3258
|
692 DEFVAR (LOADPATH, Vload_path, loadpath, |
|
3371
|
693 "-*- texinfo -*-\n\ |
|
|
694 @defvr {Built-in Variable} LOADPATH\n\ |
|
|
695 A colon separated list of directories in which to search for function\n\ |
|
|
696 files. @xref{Functions and Scripts}. The value of @code{LOADPATH}\n\ |
|
|
697 overrides the environment variable @code{OCTAVE_PATH}. @xref{Installation}.\n\ |
|
|
698 \n\ |
|
|
699 @code{LOADPATH} is now handled in the same way as @TeX{} handles\n\ |
|
|
700 @code{TEXINPUTS}. Leading, trailing, or doubled colons that appear in\n\ |
|
|
701 @code{LOADPATH} are replaced by the value of @code{DEFAULT_LOADPATH}.\n\ |
|
5451
|
702 The default value of @code{LOADPATH} is @code{\"\n" |
|
|
703 SEPCHAR_STR |
|
|
704 "\"}, which tells Octave to search in the directories specified by\n\ |
|
|
705 @code{DEFAULT_LOADPATH}.\n\ |
|
3371
|
706 \n\ |
|
|
707 In addition, if any path element ends in @samp{//}, that directory and\n\ |
|
|
708 all subdirectories it contains are searched recursively for function\n\ |
|
|
709 files. This can result in a slight delay as Octave caches the lists of\n\ |
|
|
710 files found in the @code{LOADPATH} the first time Octave searches for a\n\ |
|
|
711 function. After that, searching is usually much faster because Octave\n\ |
|
|
712 normally only needs to search its internal cache for files.\n\ |
|
|
713 \n\ |
|
|
714 To improve performance of recursive directory searching, it is best for\n\ |
|
|
715 each directory that is to be searched recursively to contain\n\ |
|
|
716 @emph{either} additional subdirectories @emph{or} function files, but\n\ |
|
|
717 not a mixture of both.\n\ |
|
|
718 \n\ |
|
3402
|
719 @xref{Organization of Functions}, for a description of the function file\n\ |
|
3371
|
720 directories that are distributed with Octave.\n\ |
|
|
721 @end defvr"); |
|
2203
|
722 |
|
4217
|
723 DEFVAR (DEFAULT_LOADPATH, Vdefault_load_path, default_load_path, |
|
3371
|
724 "-*- texinfo -*-\n\ |
|
|
725 @defvr {Built-in Variable} DEFAULT_LOADPATH\n\ |
|
|
726 A colon separated list of directories in which to search for function\n\ |
|
4447
|
727 files. The value of this variable is automatically substituted for\n\ |
|
|
728 leading, trailing, or doubled colons that appear in the built-in\n\ |
|
|
729 variable @code{LOADPATH}.\n\ |
|
3371
|
730 @end defvr"); |
|
3192
|
731 |
|
3258
|
732 DEFVAR (IMAGEPATH, OCTAVE_IMAGEPATH, imagepath, |
|
3373
|
733 "-*- texinfo -*-\n\ |
|
3532
|
734 @defvr {Built-in Variable} IMAGEPATH\n\ |
|
3373
|
735 A colon separated list of directories in which to search for image\n\ |
|
|
736 files.\n\ |
|
|
737 @end defvr"); |
|
2203
|
738 |
|
3141
|
739 DEFCONST (OCTAVE_HOME, Voctave_home, |
|
3446
|
740 "-*- texinfo -*-\n\ |
|
5333
|
741 @defvr {Built-in Constant} OCTAVE_HOME\n\ |
|
3446
|
742 The name of the top-level Octave installation directory.\n\ |
|
|
743 @end defvr"); |
|
2831
|
744 |
|
3141
|
745 DEFCONSTX ("OCTAVE_VERSION", SBV_OCTAVE_VERSION, OCTAVE_VERSION, |
|
3301
|
746 "-*- texinfo -*-\n\ |
|
5333
|
747 @defvr {Built-in Constant} OCTAVE_VERSION\n\ |
|
3301
|
748 The version number of Octave, as a string.\n\ |
|
|
749 @end defvr"); |
|
3446
|
750 |
|
2203
|
751 } |
|
|
752 |
|
|
753 /* |
|
|
754 ;;; Local Variables: *** |
|
|
755 ;;; mode: C++ *** |
|
|
756 ;;; End: *** |
|
|
757 */ |
