Mercurial > octave
annotate libinterp/corefcn/help.cc @ 27923:bd51beb6205e
update formatting of copyright notices
* Use <https://octave.org/copyright/> instead of
<https://octave.org/COPYRIGHT.html/>.
* For consistency with other comments in the Octave sources, use
C++-style comments for copyright blocks in C and C++ files.
* Use delimiters above and below copyright blocks that are appropriate
for the language used in the file.
* Eliminate extra spacing inside copyright blocks.
* lex.ll (looks_like_copyright): Also allow newlines and carriage
returns before the word "Copyright".
* scripts/mk-doc.pl (gethelp): Also skip empty comment lines.
* bp-table.cc, type.m: Adjust tests.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 08 Jan 2020 11:59:41 -0500 |
parents | 1891570abac8 |
children | b018f553fd85 |
rev | line source |
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1 //////////////////////////////////////////////////////////////////////// |
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2 // |
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3 // Copyright (C) 1993-2020 The Octave Project Developers |
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4 // |
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5 // See the file COPYRIGHT.md in the top-level directory of this |
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6 // distribution or <https://octave.org/copyright/>. |
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7 // |
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8 // This file is part of Octave. |
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9 // |
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10 // Octave is free software: you can redistribute it and/or modify it |
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11 // under the terms of the GNU General Public License as published by |
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12 // the Free Software Foundation, either version 3 of the License, or |
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13 // (at your option) any later version. |
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14 // |
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15 // Octave is distributed in the hope that it will be useful, but |
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of |
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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18 // GNU General Public License for more details. |
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19 // |
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20 // You should have received a copy of the GNU General Public License |
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21 // along with Octave; see the file COPYING. If not, see |
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22 // <https://www.gnu.org/licenses/>. |
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23 // |
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24 //////////////////////////////////////////////////////////////////////// |
1 | 25 |
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26 #if defined (HAVE_CONFIG_H) |
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27 # include "config.h" |
1 | 28 #endif |
29 | |
1343 | 30 #include <cstdlib> |
31 #include <cstring> | |
32 | |
5769 | 33 #include <algorithm> |
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34 #include <fstream> |
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35 #include <istream> |
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36 #include <map> |
5765 | 37 #include <sstream> |
1755 | 38 #include <string> |
39 | |
3295 | 40 #include "cmd-edit.h" |
41 #include "file-ops.h" | |
6253 | 42 #include "file-stat.h" |
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43 #include "lo-sysdep.h" |
2926 | 44 #include "oct-env.h" |
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45 #include "oct-locbuf.h" |
1755 | 46 #include "str-vec.h" |
47 | |
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48 #include "Cell.h" |
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49 #include "builtin-defun-decls.h" |
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50 #include "defaults.h" |
1352 | 51 #include "defun.h" |
52 #include "error.h" | |
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53 #include "errwarn.h" |
1352 | 54 #include "help.h" |
2177 | 55 #include "input.h" |
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56 #include "interpreter-private.h" |
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57 #include "interpreter.h" |
5832 | 58 #include "load-path.h" |
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59 #include "ov-fcn-handle.h" |
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60 #include "ov-usr-fcn.h" |
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61 #include "ovl.h" |
1352 | 62 #include "pager.h" |
3018 | 63 #include "parse.h" |
1466 | 64 #include "pathsearch.h" |
3295 | 65 #include "procstream.h" |
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66 #include "quit.h" |
529 | 67 #include "sighandlers.h" |
68 #include "symtab.h" | |
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69 #include "unwind-prot.h" |
242 | 70 #include "utils.h" |
1352 | 71 #include "variables.h" |
3301 | 72 #include "version.h" |
529 | 73 |
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74 #include "default-defs.h" |
2189 | 75 |
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76 namespace octave |
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77 { |
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78 const static char * const operators[] = |
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79 { |
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80 "!", |
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81 "~", |
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82 "!=", |
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83 "~=", |
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84 R"(")", |
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85 "#", |
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86 "%", |
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87 "#{", |
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88 "%{", |
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89 "#}", |
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90 "%}", |
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91 "...", |
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92 "&", |
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93 "&&", |
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94 "'", |
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95 "(", |
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96 ")", |
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97 "*", |
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98 "**", |
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99 "^", |
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100 "+", |
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101 "++", |
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102 ",", |
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103 "-", |
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104 "--", |
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105 ".'", |
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106 ".*", |
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107 ".**", |
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108 ".^", |
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109 "./", |
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110 "/", |
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111 R"(.\)", |
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112 R"(\)", |
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113 ":", |
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114 ";", |
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115 "<", |
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116 "<=", |
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117 "=", |
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118 "==", |
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119 ">", |
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120 ">=", |
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121 "[", |
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122 "]", |
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123 "|", |
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124 "||", |
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125 nullptr |
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126 }; |
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127 |
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128 const static string_vector operator_names (operators); |
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129 |
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130 static bool |
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131 looks_like_html (const std::string& msg) |
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132 { |
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133 const size_t p1 = msg.find ('\n'); |
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134 std::string t = msg.substr (0, p1); |
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135 // FIXME: this comparison should be case-insensitive |
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136 const size_t p2 = t.find ("<html"); |
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137 |
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138 return (p2 != std::string::npos); |
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139 } |
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140 |
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141 static bool |
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142 looks_like_texinfo (const std::string& msg, size_t& p1) |
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143 { |
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144 p1 = msg.find ('\n'); |
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145 |
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146 std::string t = msg.substr (0, p1); |
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147 |
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148 if (p1 == std::string::npos) |
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149 p1 = 0; |
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150 |
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151 size_t p2 = t.find ("-*- texinfo -*-"); |
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152 |
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153 return (p2 != std::string::npos); |
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154 } |
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155 |
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156 octave_value |
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157 help_system::built_in_docstrings_file (const octave_value_list& args, |
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158 int nargout) |
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159 { |
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160 return set_internal_variable (m_built_in_docstrings_file, args, nargout, |
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161 "built_in_docstrings_file", false); |
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162 } |
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163 |
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164 octave_value |
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165 help_system::doc_cache_file (const octave_value_list& args, int nargout) |
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166 { |
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167 return set_internal_variable (m_doc_cache_file, args, nargout, |
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168 "doc_cache_file", false); |
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169 } |
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170 |
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171 octave_value |
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172 help_system::info_file (const octave_value_list& args, int nargout) |
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173 { |
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174 return set_internal_variable (m_info_file, args, nargout, |
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175 "info_file", false); |
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176 } |
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177 |
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178 octave_value |
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179 help_system::info_program (const octave_value_list& args, int nargout) |
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180 { |
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181 return set_internal_variable (m_info_program, args, nargout, |
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182 "info_program", false); |
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183 } |
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184 |
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185 octave_value |
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186 help_system::makeinfo_program (const octave_value_list& args, int nargout) |
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187 { |
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188 return set_internal_variable (m_makeinfo_program, args, nargout, |
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189 "makeinfo_program", false); |
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190 } |
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191 |
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192 octave_value |
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193 help_system::suppress_verbose_help_message (const octave_value_list& args, |
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194 int nargout) |
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195 { |
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196 return set_internal_variable (m_suppress_verbose_help_message, args, |
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197 nargout, "suppress_verbose_help_message"); |
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198 } |
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199 |
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200 octave_value |
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201 help_system::texi_macros_file (const octave_value_list& args, int nargout) |
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202 { |
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203 return set_internal_variable (m_texi_macros_file, args, nargout, |
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204 "texi_macros_file", false); |
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205 } |
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206 |
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207 std::string |
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208 help_system::raw_help (const std::string& nm, bool& symbol_found) const |
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209 { |
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210 std::string h; |
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211 std::string w; |
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212 std::string f; |
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213 |
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214 bool found; |
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215 |
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216 found = raw_help_from_symbol_table (nm, h, w, symbol_found); |
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217 |
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218 if (! found) |
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219 found = raw_help_from_file (nm, h, f, symbol_found); |
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220 |
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221 bool external_doc = h.compare (0, 12, "external-doc") == 0; |
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222 |
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223 if (! found || external_doc) |
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224 { |
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225 std::string tmp_nm = nm; |
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226 |
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227 if (external_doc && h.length () > 12 && h[12] == ':') |
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228 tmp_nm = h.substr (13); |
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229 |
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230 raw_help_from_docstrings_file (tmp_nm, h, symbol_found); |
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231 } |
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232 |
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233 return h; |
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234 } |
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235 |
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236 std::string help_system::which (const std::string& name, |
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237 std::string& type) const |
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238 { |
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239 std::string file; |
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240 |
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241 if (name.empty ()) |
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242 return file; |
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243 |
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244 type = ""; |
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245 |
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246 if (name.find_first_of ('.') == std::string::npos) |
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247 { |
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248 symbol_table& symtab = m_interpreter.get_symbol_table (); |
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249 |
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250 octave_value val = symtab.find_function (name); |
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251 |
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252 if (val.is_defined ()) |
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253 { |
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254 octave_function *fcn = val.function_value (); |
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255 |
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256 if (fcn) |
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257 { |
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258 file = fcn->fcn_file_name (); |
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259 |
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260 if (file.empty ()) |
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261 { |
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262 if (fcn->is_user_function ()) |
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263 type = "command-line function"; |
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264 else |
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265 { |
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266 file = fcn->src_file_name (); |
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267 type = "built-in function"; |
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268 } |
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269 } |
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270 else |
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271 type = val.is_user_script () ? "script" : "function"; |
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272 } |
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273 } |
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274 else |
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275 { |
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276 // We might find a file that contains only a doc string. |
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277 |
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278 load_path& lp = m_interpreter.get_load_path (); |
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279 |
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280 file = lp.find_fcn_file (name); |
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281 } |
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282 } |
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283 else |
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284 { |
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285 // File query. |
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286 |
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287 load_path& lp = m_interpreter.get_load_path (); |
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288 |
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289 // For compatibility: "file." queries "file". |
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290 if (name.size () > 1 && name[name.size () - 1] == '.') |
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291 file = lp.find_file (name.substr (0, name.size () - 1)); |
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292 else |
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293 file = lp.find_file (name); |
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294 |
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295 file = sys::env::make_absolute (file); |
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296 } |
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297 |
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298 return file; |
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299 } |
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300 |
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301 std::string help_system::which (const std::string& name) const |
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302 { |
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303 std::string type; |
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304 |
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305 return which (name, type); |
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306 } |
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307 |
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308 string_vector help_system::make_name_list (void) const |
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309 { |
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310 const static string_vector keywords |
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311 = Fiskeyword ()(0).string_vector_value (); |
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312 |
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313 const static int key_len = keywords.numel (); |
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314 |
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315 symbol_table& symtab = m_interpreter.get_symbol_table (); |
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316 |
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317 const string_vector bif = symtab.built_in_function_names (); |
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318 const int bif_len = bif.numel (); |
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319 |
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320 const string_vector cfl = symtab.cmdline_function_names (); |
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321 const int cfl_len = cfl.numel (); |
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322 |
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323 const string_vector lcl = m_interpreter.variable_names (); |
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324 const int lcl_len = lcl.numel (); |
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325 |
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326 load_path& lp = m_interpreter.get_load_path (); |
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327 |
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328 const string_vector ffl = lp.fcn_names (); |
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329 const int ffl_len = ffl.numel (); |
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330 |
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331 const string_vector afl = m_interpreter.autoloaded_functions (); |
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332 const int afl_len = afl.numel (); |
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333 |
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334 const string_vector lfl = local_functions (); |
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335 const int lfl_len = lfl.numel (); |
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336 |
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337 const int total_len |
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338 = key_len + bif_len + cfl_len + lcl_len + ffl_len + afl_len + lfl_len; |
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339 |
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340 string_vector list (total_len); |
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341 |
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342 // Put all the symbols in one big list. |
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343 |
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344 int j = 0; |
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345 int i = 0; |
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346 |
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347 for (i = 0; i < key_len; i++) |
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348 list[j++] = keywords[i]; |
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349 |
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350 for (i = 0; i < bif_len; i++) |
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351 list[j++] = bif[i]; |
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352 |
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353 for (i = 0; i < cfl_len; i++) |
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354 list[j++] = cfl[i]; |
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355 |
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356 for (i = 0; i < lcl_len; i++) |
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357 list[j++] = lcl[i]; |
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358 |
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359 for (i = 0; i < ffl_len; i++) |
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360 list[j++] = ffl[i]; |
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361 |
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362 for (i = 0; i < afl_len; i++) |
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363 list[j++] = afl[i]; |
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364 |
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365 for (i = 0; i < lfl_len; i++) |
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366 list[j++] = lfl[i]; |
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367 |
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368 return list; |
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369 } |
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370 |
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371 void help_system::get_help_text (const std::string& name, std::string& text, |
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372 std::string& format) const |
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373 { |
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374 bool symbol_found = false; |
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375 text = raw_help (name, symbol_found); |
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376 |
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377 format = "Not found"; |
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378 if (symbol_found) |
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379 { |
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380 size_t idx = -1; |
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381 if (text.empty ()) |
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382 { |
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383 format = "Not documented"; |
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384 } |
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385 else if (looks_like_texinfo (text, idx)) |
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386 { |
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387 format = "texinfo"; |
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388 text.erase (0, idx); |
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389 } |
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390 else if (looks_like_html (text)) |
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391 { |
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392 format = "html"; |
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393 } |
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394 else |
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395 { |
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396 format = "plain text"; |
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397 } |
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398 } |
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399 } |
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400 |
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401 void help_system::get_help_text_from_file (const std::string& fname, |
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402 std::string& text, |
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403 std::string& format) const |
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404 { |
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405 bool symbol_found = false; |
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406 |
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407 std::string f; |
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408 |
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409 raw_help_from_file (fname, text, f, symbol_found); |
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410 |
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411 format = "Not found"; |
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412 if (symbol_found) |
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413 { |
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414 size_t idx = -1; |
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415 if (text.empty ()) |
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416 { |
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417 format = "Not documented"; |
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418 } |
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419 else if (looks_like_texinfo (text, idx)) |
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420 { |
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421 format = "texinfo"; |
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422 text.erase (0, idx); |
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423 } |
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424 else if (looks_like_html (text)) |
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425 { |
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426 format = "html"; |
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427 } |
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428 else |
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429 { |
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430 format = "plain text"; |
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431 } |
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432 } |
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433 } |
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434 |
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435 std::string help_system::init_built_in_docstrings_file (void) |
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436 { |
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437 std::string df = sys::env::getenv ("OCTAVE_BUILT_IN_DOCSTRINGS_FILE"); |
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438 |
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439 std::string dir_sep = sys::file_ops::dir_sep_str (); |
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440 |
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441 if (df.empty ()) |
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442 df = config::oct_etc_dir () + dir_sep + "built-in-docstrings"; |
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443 |
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444 return df; |
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445 } |
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446 |
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447 std::string help_system::init_doc_cache_file (void) |
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448 { |
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449 std::string def_file = config::prepend_octave_home (OCTAVE_DOC_CACHE_FILE); |
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450 |
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451 std::string env_file = sys::env::getenv ("OCTAVE_DOC_CACHE_FILE"); |
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452 |
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453 return (env_file.empty () ? def_file : env_file); |
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454 } |
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455 |
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456 std::string help_system::init_info_file (void) |
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457 { |
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458 std::string std_info_file = config::prepend_octave_home (OCTAVE_INFOFILE); |
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459 |
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460 std::string oct_info_file = sys::env::getenv ("OCTAVE_INFO_FILE"); |
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461 |
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462 return (oct_info_file.empty () ? std_info_file : oct_info_file); |
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463 } |
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464 |
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465 std::string help_system::init_info_program (void) |
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466 { |
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467 std::string info_prog = sys::env::getenv ("OCTAVE_INFO_PROGRAM"); |
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468 |
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469 if (info_prog.empty ()) |
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470 info_prog = "info"; |
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471 |
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472 return info_prog; |
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|
473 } |
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474 |
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475 std::string help_system::init_texi_macros_file (void) |
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476 { |
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477 std::string def_file |
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478 = config::prepend_octave_home (OCTAVE_TEXI_MACROS_FILE); |
22295
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Rik <rik@octave.org>
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|
479 |
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480 std::string env_file = sys::env::getenv ("OCTAVE_TEXI_MACROS_FILE"); |
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481 |
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482 return (env_file.empty () ? def_file : env_file); |
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483 } |
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484 |
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485 // Return a vector of all functions from this file, |
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486 // for use in command line auto-completion. |
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487 string_vector help_system::local_functions (void) const |
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488 { |
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489 string_vector retval; |
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|
490 |
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eliminate direct access to call stack in help functions
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|
491 tree_evaluator& tw = m_interpreter.get_evaluator (); |
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492 |
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493 octave_user_code *curr_fcn = tw.current_user_code (); |
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494 |
25394
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|
495 if (! curr_fcn) |
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496 return retval; |
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497 |
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498 // All subfunctions are listed in the top-level function of this file. |
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499 // If curr_fcn is a subfunction, then there must be a parent and |
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500 // curr_fcn will always be valid in and after executing this loop. |
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501 |
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502 while (curr_fcn->is_subfunction ()) |
23721
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503 { |
24361
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use shared_ptr to manage symbol_scope objects
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|
504 symbol_scope pscope = curr_fcn->parent_fcn_scope (); |
27745
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|
505 curr_fcn = pscope.user_code (); |
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506 } |
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|
507 |
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508 // Get subfunctions. |
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509 const std::list<std::string> names = curr_fcn->subfunction_names (); |
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510 |
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511 size_t sz = names.size (); |
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512 retval.resize (sz); |
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|
513 |
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514 // Loop over them. |
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515 size_t i = 0; |
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516 for (const auto& nm : names) |
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517 retval(i++) = nm; |
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518 |
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519 return retval; |
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520 } |
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521 |
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522 bool help_system::raw_help_from_symbol_table (const std::string& nm, |
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523 std::string& h, std::string& w, |
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524 bool& symbol_found) const |
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525 { |
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526 bool retval = false; |
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527 |
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528 symbol_table& symtab = m_interpreter.get_symbol_table (); |
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529 |
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530 octave_value val = symtab.find_function (nm); |
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531 |
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532 if (val.is_defined ()) |
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533 { |
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534 octave_function *fcn = val.function_value (); |
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535 |
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536 if (fcn) |
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537 { |
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538 symbol_found = true; |
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539 |
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540 h = fcn->doc_string (); |
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541 |
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542 retval = true; |
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543 |
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544 w = fcn->fcn_file_name (); |
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545 |
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546 if (w.empty ()) |
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547 w = fcn->is_user_function () ? "command-line function" |
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548 : "built-in function"; |
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549 } |
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550 } |
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551 |
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552 return retval; |
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553 } |
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554 |
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555 bool help_system::raw_help_from_file (const std::string& nm, |
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556 std::string& h, std::string& file, |
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557 bool& symbol_found) const |
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558 { |
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559 bool retval = false; |
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560 |
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561 h = get_help_from_file (nm, symbol_found, file); |
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562 |
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563 if (h.length () > 0) |
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564 retval = true; |
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565 |
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566 return retval; |
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567 } |
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568 |
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569 bool |
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570 help_system::raw_help_from_docstrings_file (const std::string& nm, |
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571 std::string& h, |
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572 bool& symbol_found) const |
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573 { |
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574 typedef std::pair<std::streampos, std::streamoff> txt_limits_type; |
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575 typedef std::map<std::string, txt_limits_type> help_txt_map_type; |
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576 |
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577 static help_txt_map_type help_txt_map; |
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578 static bool initialized = false; |
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579 |
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580 h = ""; |
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581 symbol_found = false; |
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582 |
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583 // FIXME: Should we cache the timestamp of the file and reload the |
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584 // offsets if it changes? Or just warn about that? Or just ignore |
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585 // it, and assume it won't change? |
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586 |
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587 if (! initialized) |
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588 { |
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589 std::string ascii_fname |
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590 = sys::get_ASCII_filename (m_built_in_docstrings_file); |
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591 |
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592 std::ifstream file (ascii_fname.c_str (), |
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593 std::ios::in | std::ios::binary); |
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594 |
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595 if (! file) |
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596 error ("failed to open docstrings file: %s", |
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597 m_built_in_docstrings_file.c_str ()); |
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598 |
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599 // Ignore header; |
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600 file.ignore (std::numeric_limits<std::streamsize>::max(), 0x1d); |
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601 |
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602 if (file.eof ()) |
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603 error ("invalid built-in-docstrings file!"); |
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604 |
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605 // FIXME: eliminate fixed buffer size. |
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606 size_t bufsize = 1000; |
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607 OCTAVE_LOCAL_BUFFER (char, buf, bufsize); |
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608 |
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609 while (! file.eof ()) |
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610 { |
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611 std::string name; |
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612 int i = 0; |
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613 int c; |
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614 while (file && (c = file.get ()) != std::istream::traits_type::eof ()) |
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615 { |
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616 if (c == '\n' || c == '\r') |
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617 { |
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618 buf[i] = '\0'; |
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619 name = buf; |
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620 break; |
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621 } |
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622 else |
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623 buf[i++] = c; |
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624 } |
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625 |
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626 // Skip @c FILENAME which is part of current DOCSTRINGS |
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627 // syntax. This may disappear if a specific format for |
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628 // docstring files is developed. |
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629 while (file |
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630 && (c = file.get ()) != std::istream::traits_type::eof () |
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631 && c != '\n' && c != '\r') |
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632 ; // skip text |
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633 |
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634 // skip newline characters |
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635 while (file |
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636 && (c = file.get ()) != std::istream::traits_type::eof () |
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637 && (c == '\n' || c == '\r')) |
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638 ; // skip text |
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639 |
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640 file.unget (); |
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641 |
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642 // Position of beginning of help text. |
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643 std::streampos beg = file.tellg (); |
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644 |
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645 // Skip help text. |
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646 file.ignore (std::numeric_limits<std::streamsize>::max(), 0x1d); |
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647 |
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648 // Position of end of help text. |
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649 std::streamoff len; |
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650 |
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651 if (! file.eof ()) |
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652 len = file.tellg () - beg - 1; |
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653 else |
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654 { |
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655 file.seekg (0, file.end); |
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656 len = file.tellg () - beg - 1; |
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657 file.setstate (file.eofbit); // reset eof flag |
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658 } |
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659 |
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660 help_txt_map[name] = txt_limits_type (beg, len); |
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661 } |
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662 |
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663 initialized = true; |
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664 } |
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665 |
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666 help_txt_map_type::const_iterator it = help_txt_map.find (nm); |
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667 |
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668 if (it != help_txt_map.end ()) |
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669 { |
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670 txt_limits_type txt_limits = it->second; |
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671 |
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672 std::streampos beg = txt_limits.first; |
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673 std::streamoff len = txt_limits.second; |
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674 |
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675 std::string ascii_fname |
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676 = sys::get_ASCII_filename (m_built_in_docstrings_file); |
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677 |
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678 std::ifstream file (ascii_fname.c_str (), |
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679 std::ios::in | std::ios::binary); |
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680 |
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681 if (! file) |
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682 error ("failed to open docstrings file: %s", |
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683 m_built_in_docstrings_file.c_str ()); |
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684 |
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685 file.seekg (beg); |
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686 |
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687 size_t txt_len = len; |
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688 OCTAVE_LOCAL_BUFFER (char, buf, txt_len + 1); |
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689 |
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690 file.read (buf, txt_len); |
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691 |
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692 buf[txt_len] = '\0'; |
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693 |
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694 h = buf; |
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695 |
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696 symbol_found = true; |
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697 } |
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698 |
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699 return symbol_found; |
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700 } |
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701 |
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702 // FIXME: It's not likely that this does the right thing now. |
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703 |
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704 string_vector make_name_list (void) |
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705 { |
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706 help_system& help_sys = __get_help_system__ ("make_name_list"); |
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707 |
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708 return help_sys.make_name_list (); |
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709 } |
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710 } |
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711 |
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712 DEFMETHOD (get_help_text, interp, args, , |
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713 doc: /* -*- texinfo -*- |
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714 @deftypefn {} {[@var{text}, @var{format}] =} get_help_text (@var{name}) |
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715 Return the raw help text of function @var{name}. |
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716 |
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717 The raw help text is returned in @var{text} and the format in @var{format}. |
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718 The format is a string which is one of @qcode{"texinfo"}, @qcode{"html"}, or |
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719 @w{@qcode{"plain text"}}. |
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720 @seealso{get_help_text_from_file} |
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721 @end deftypefn */) |
529 | 722 { |
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723 if (args.length () != 1) |
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724 print_usage (); |
1755 | 725 |
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726 const std::string name = args(0).xstring_value ("get_help_text: NAME must be a string"); |
529 | 727 |
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728 octave::help_system& help_sys = interp.get_help_system (); |
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729 |
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730 std::string text, format; |
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731 |
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732 help_sys.get_help_text (name, text, format); |
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733 |
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734 return ovl (text, format); |
529 | 735 } |
736 | |
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737 DEFMETHOD (get_help_text_from_file, interp, args, , |
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738 doc: /* -*- texinfo -*- |
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739 @deftypefn {} {[@var{text}, @var{format}] =} get_help_text_from_file (@var{fname}) |
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740 Return the raw help text from the file @var{fname}. |
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741 |
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742 The raw help text is returned in @var{text} and the format in @var{format}. |
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743 The format is a string which is one of @qcode{"texinfo"}, @qcode{"html"}, or |
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744 @w{@qcode{"plain text"}}. |
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745 @seealso{get_help_text} |
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746 @end deftypefn */) |
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747 { |
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748 if (args.length () != 1) |
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749 print_usage (); |
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750 |
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751 const std::string fname = args(0).xstring_value ("get_help_text_from_file: NAME must be a string"); |
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752 |
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753 octave::help_system& help_sys = interp.get_help_system (); |
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754 |
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|
755 std::string text, format; |
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John W. Eaton <jwe@octave.org>
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|
756 |
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|
757 help_sys.get_help_text_from_file (fname, text, format); |
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|
758 |
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|
759 return ovl (text, format); |
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760 } |
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|
761 |
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762 // Return a cell array of strings containing the names of all operators. |
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763 |
7d48766c21a5
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|
764 DEFUN (__operators__, , , |
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765 doc: /* -*- texinfo -*- |
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766 @deftypefn {} {} __operators__ () |
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767 Undocumented internal function. |
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|
768 @end deftypefn */) |
3355 | 769 { |
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|
770 return ovl (Cell (octave::operator_names)); |
3355 | 771 } |
772 | |
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Rik <rik@octave.org>
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|
773 // Return a cell array of strings containing the names of all keywords. |
7c7a61c2e0ed
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Rik <rik@octave.org>
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|
774 // iskeyword() function is located in lex.ll and is based on what the parser |
7c7a61c2e0ed
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Rik <rik@octave.org>
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775 // thinks is a keyword. |
8812
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|
776 |
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|
777 DEFALIAS (__keywords__, iskeyword) |
581 | 778 |
23065
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779 // Return a cell array of strings with the names of all builtin functions. |
8812
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|
780 |
23599
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|
781 DEFMETHOD (__builtins__, interp, , , |
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782 doc: /* -*- texinfo -*- |
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783 @deftypefn {} {} __builtins__ () |
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784 Undocumented internal function. |
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|
785 @end deftypefn */) |
3355 | 786 { |
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|
787 octave::symbol_table& symtab = interp.get_symbol_table (); |
23599
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788 |
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789 const string_vector bif = symtab.built_in_function_names (); |
3355 | 790 |
21127
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maint: Use "return ovl (...)" in DEFUN macros.
Rik <rik@octave.org>
parents:
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|
791 return ovl (Cell (bif)); |
3355 | 792 } |
793 | |
23553
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794 DEFMETHOD (localfunctions, interp, args, , |
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795 doc: /* -*- texinfo -*- |
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796 @deftypefn {} {} localfunctions () |
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797 Return a list of all local functions, i.e., subfunctions, within the current |
112b20240c87
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|
798 file. |
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|
799 |
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|
800 The return value is a column cell array of function handles to all local |
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|
801 functions accessible from the function from which @code{localfunctions} is |
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|
802 called. Nested functions are @emph{not} included in the list. |
112b20240c87
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|
803 |
112b20240c87
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|
804 If the call is from the command line, an anonymous function, or a script, |
112b20240c87
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|
805 the return value is an empty cell array. |
112b20240c87
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|
806 |
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Don't mark nested functions in primary function as subfunctions.
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diff
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|
807 @seealso{functions} |
21966
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|
808 @end deftypefn */) |
21765
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Implement localfunctions Matlab command (bug #47705).
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|
809 { |
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|
810 if (args.length () != 0) |
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parents:
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|
811 print_usage (); |
23a610a3f001
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|
812 |
23a610a3f001
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parents:
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|
813 Cell retval; |
23a610a3f001
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|
814 |
23a610a3f001
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parents:
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changeset
|
815 // Find the main function we are in. |
27202
23962b243bad
eliminate direct access to call stack in help functions
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|
816 octave::tree_evaluator& tw = interp.get_evaluator (); |
23962b243bad
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John W. Eaton <jwe@octave.org>
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|
817 octave_user_code *parent_fcn = tw.debug_user_code (); |
21765
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|
818 |
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parents:
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|
819 if (! parent_fcn) |
23a610a3f001
Implement localfunctions Matlab command (bug #47705).
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|
820 return ovl (retval); |
23a610a3f001
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|
821 |
23a610a3f001
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|
822 // Find the subfunctions of this function. |
22974
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Rik <rik@octave.org>
parents:
22885
diff
changeset
|
823 // 1) subfunction_names contains only valid subfunctions |
ecc5eeada8dc
Don't mark nested functions in primary function as subfunctions.
Rik <rik@octave.org>
parents:
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diff
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|
824 // 2) subfunctions contains both nested functions and subfunctions |
21765
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parents:
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|
825 const std::list<std::string> names = parent_fcn->subfunction_names (); |
23a610a3f001
Implement localfunctions Matlab command (bug #47705).
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parents:
21733
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|
826 const std::map<std::string, octave_value> h = parent_fcn->subfunctions (); |
23a610a3f001
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|
827 |
23a610a3f001
Implement localfunctions Matlab command (bug #47705).
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changeset
|
828 size_t sz = names.size (); |
23a610a3f001
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|
829 retval.resize (dim_vector (sz, 1)); |
23a610a3f001
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diff
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|
830 |
23a610a3f001
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parents:
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changeset
|
831 // loop over them. |
23a610a3f001
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parents:
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changeset
|
832 size_t i = 0; |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
parents:
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|
833 for (const auto& nm : names) |
21765
23a610a3f001
Implement localfunctions Matlab command (bug #47705).
Lachlan Andrew <lachlanbis@gmail.com>
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|
834 { |
22862
e365e87371a3
maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
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diff
changeset
|
835 std::map<std::string, octave_value>::const_iterator nm_fcn = h.find (nm); |
22974
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Don't mark nested functions in primary function as subfunctions.
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|
836 if (nm_fcn != h.end ()) |
22862
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maint: Use C++ range feature to simplify some for loops in libinterp/corefcn.
Rik <rik@octave.org>
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|
837 retval(i++) = octave_value (new octave_fcn_handle (nm_fcn->second, nm)); |
21765
23a610a3f001
Implement localfunctions Matlab command (bug #47705).
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parents:
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|
838 } |
23a610a3f001
Implement localfunctions Matlab command (bug #47705).
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|
839 |
23a610a3f001
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changeset
|
840 return ovl (retval); |
23a610a3f001
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parents:
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diff
changeset
|
841 } |
23a610a3f001
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diff
changeset
|
842 |
23a610a3f001
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parents:
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diff
changeset
|
843 /* |
23a610a3f001
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21733
diff
changeset
|
844 %!test |
26679
2b6aa96a5c82
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Mike Miller <mtmiller@octave.org>
parents:
26677
diff
changeset
|
845 %! f = tempname (tempdir (), "oct_"); |
27361
a7d21a6a7922
BIST should not rely on the current directory to be writable.
Kai T. Ohlhus <k.ohlhus@gmail.com>
parents:
26594
diff
changeset
|
846 %! [~, fcn_name] = fileparts (f); |
22016
d4ce10f57918
Clean up localfunctions BIST test
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parents:
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|
847 %! f = [f ".m"]; |
26677
33f79d94f21f
Create any BIST temporary files in writable temporary directory (bug #55565).
Rik <rik@octave.org>
parents:
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diff
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|
848 %! save_path = path (); |
22016
d4ce10f57918
Clean up localfunctions BIST test
Mike Miller <mtmiller@octave.org>
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|
849 %! unwind_protect |
26679
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|
850 %! addpath (tempdir ()); |
22016
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Clean up localfunctions BIST test
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|
851 %! fid = fopen (f, "w+"); |
d4ce10f57918
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diff
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|
852 %! fprintf (fid, "function z = %s\n z = localfunctions; end\n", fcn_name); |
d4ce10f57918
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Mike Miller <mtmiller@octave.org>
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|
853 %! fprintf (fid, "function z = b(x)\n z = x+1; end\n"); |
d4ce10f57918
Clean up localfunctions BIST test
Mike Miller <mtmiller@octave.org>
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changeset
|
854 %! fprintf (fid, "function z = c(x)\n z = 2*x; end\n"); |
d4ce10f57918
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parents:
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|
855 %! fclose (fid); |
d4ce10f57918
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parents:
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diff
changeset
|
856 %! d = eval (fcn_name); |
d4ce10f57918
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Mike Miller <mtmiller@octave.org>
parents:
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|
857 %! assert (size (d), [2, 1]); |
22974
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Rik <rik@octave.org>
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|
858 %! assert (d{1} (3), 4); |
ecc5eeada8dc
Don't mark nested functions in primary function as subfunctions.
Rik <rik@octave.org>
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|
859 %! assert (d{2} (3), 6); |
22016
d4ce10f57918
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|
860 %! unwind_protect_cleanup |
d4ce10f57918
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diff
changeset
|
861 %! unlink (f); |
26677
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Create any BIST temporary files in writable temporary directory (bug #55565).
Rik <rik@octave.org>
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|
862 %! path (save_path); |
22016
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Clean up localfunctions BIST test
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|
863 %! end_unwind_protect |
21765
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|
864 */ |
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Implement localfunctions Matlab command (bug #47705).
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|
865 |
23721
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|
866 DEFMETHOD (__which__, interp, args, , |
b2d55b52ee51
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|
867 doc: /* -*- texinfo -*- |
21966
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|
868 @deftypefn {} {} __which__ (@var{name}, @dots{}) |
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|
869 Undocumented internal function. |
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|
870 @end deftypefn */) |
581 | 871 { |
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|
872 octave::help_system& help_sys = interp.get_help_system (); |
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|
873 |
20996 | 874 string_vector argv = args.make_argv (); |
1755 | 875 |
20922
49081851fddc
Eliminate duplicate input arg checking in which.m and __which__.
Rik <rik@octave.org>
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|
876 int nargin = argv.numel (); |
581 | 877 |
20922
49081851fddc
Eliminate duplicate input arg checking in which.m and __which__.
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|
878 octave_map m (dim_vector (1, nargin)); |
581 | 879 |
20922
49081851fddc
Eliminate duplicate input arg checking in which.m and __which__.
Rik <rik@octave.org>
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|
880 Cell names (1, nargin); |
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|
881 Cell files (1, nargin); |
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Eliminate duplicate input arg checking in which.m and __which__.
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882 Cell types (1, nargin); |
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|
883 |
20922
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|
884 for (int i = 0; i < nargin; i++) |
20803
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885 { |
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|
886 std::string name = argv[i]; |
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|
887 |
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|
888 std::string type; |
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|
889 |
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|
890 std::string file = help_sys.which (name, type); |
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891 |
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892 names(i) = name; |
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893 files(i) = file; |
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894 types(i) = type; |
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895 } |
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|
896 |
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|
897 m.assign ("name", names); |
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898 m.assign ("file", files); |
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|
899 m.assign ("type", types); |
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900 |
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|
901 return ovl (m); |
581 | 902 } |
903 | |
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904 // Return a cell array of strings containing the names of all |
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905 // functions available in DIRECTORY. If no directory is given, search |
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906 // the current path. |
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|
907 |
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908 DEFMETHOD (__list_functions__, interp, args, , |
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909 doc: /* -*- texinfo -*- |
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910 @deftypefn {} {@var{retval} =} __list_functions__ () |
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911 @deftypefnx {} {@var{retval} =} __list_functions__ (@var{directory}) |
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912 Return a list of all functions (.m and .oct functions) in the load path. |
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913 |
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914 If the optional argument @var{directory} is given then list only the functions |
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915 in that directory. |
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916 @seealso{path} |
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917 @end deftypefn */) |
8575
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918 { |
8863
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919 octave_value retval; |
5447 | 920 |
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921 octave::load_path& lp = interp.get_load_path (); |
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922 |
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|
923 if (args.length () == 0) |
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924 { |
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925 // Get list of all functions |
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|
926 string_vector ffl = lp.fcn_names (); |
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|
927 string_vector afl = interp.autoloaded_functions (); |
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|
928 |
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929 retval = Cell (ffl.append (afl)); |
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930 } |
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|
931 else |
5447 | 932 { |
20700
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|
933 std::string dir = args(0).xstring_value ("__list_functions__: DIRECTORY argument must be a string"); |
8863
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934 |
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935 string_vector fl = lp.files (dir, true); |
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|
936 |
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937 // Return a sorted list with unique entries (in case of .m and .oct |
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938 // versions of the same function in a given directory, for example). |
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939 fl.sort (true); |
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|
940 |
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|
941 retval = Cell (fl); |
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|
942 } |
5447 | 943 |
944 return retval; | |
945 } | |
946 | |
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947 DEFMETHOD (built_in_docstrings_file, interp, args, nargout, |
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948 doc: /* -*- texinfo -*- |
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949 @deftypefn {} {@var{val} =} built_in_docstrings_file () |
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950 @deftypefnx {} {@var{old_val} =} built_in_docstrings_file (@var{new_val}) |
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951 @deftypefnx {} {} built_in_docstrings_file (@var{new_val}, "local") |
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952 Query or set the internal variable that specifies the name of the |
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953 file containing docstrings for built-in Octave functions. |
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|
954 |
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|
955 The default value is |
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956 @file{@var{octave-home}/share/octave/@var{version}/etc/built-in-docstrings}, |
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957 in which @var{octave-home} is the root directory of the Octave installation, |
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958 and @var{version} is the Octave version number. The default value may be |
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959 overridden by the environment variable |
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960 @w{@env{OCTAVE_BUILT_IN_DOCSTRINGS_FILE}}, or the command line argument |
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|
961 @option{--built-in-docstrings-file FNAME}. |
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|
962 |
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963 Note: This variable is only used when Octave is initializing itself. |
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964 Modifying it during a running session of Octave will have no effect. |
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965 @end deftypefn */) |
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|
966 { |
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967 octave::help_system& help_sys = interp.get_help_system (); |
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|
968 |
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969 return help_sys.built_in_docstrings_file (args, nargout); |
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970 } |
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|
971 |
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972 DEFMETHOD (doc_cache_file, interp, args, nargout, |
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973 doc: /* -*- texinfo -*- |
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974 @deftypefn {} {@var{val} =} doc_cache_file () |
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975 @deftypefnx {} {@var{old_val} =} doc_cache_file (@var{new_val}) |
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976 @deftypefnx {} {} doc_cache_file (@var{new_val}, "local") |
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977 Query or set the internal variable that specifies the name of the |
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978 Octave documentation cache file. |
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979 |
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980 A cache file significantly improves the performance of the @code{lookfor} |
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981 command. The default value is |
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982 @file{@var{octave-home}/share/octave/@var{version}/etc/doc-cache}, |
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983 in which @var{octave-home} is the root directory of the Octave installation, |
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984 and @var{version} is the Octave version number. |
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985 The default value may be overridden by the environment variable |
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986 @w{@env{OCTAVE_DOC_CACHE_FILE}}, or the command line argument |
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987 @option{--doc-cache-file FNAME}. |
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988 |
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989 When called from inside a function with the @qcode{"local"} option, the |
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990 variable is changed locally for the function and any subroutines it calls. |
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991 The original variable value is restored when exiting the function. |
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992 @seealso{doc_cache_create, lookfor, info_program, doc, help, makeinfo_program} |
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993 @seealso{lookfor} |
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994 @end deftypefn */) |
8861 | 995 { |
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996 octave::help_system& help_sys = interp.get_help_system (); |
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997 |
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998 return help_sys.doc_cache_file (args, nargout); |
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999 } |
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1000 |
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1001 DEFMETHOD (info_file, interp, args, nargout, |
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1002 doc: /* -*- texinfo -*- |
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1003 @deftypefn {} {@var{val} =} info_file () |
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1004 @deftypefnx {} {@var{old_val} =} info_file (@var{new_val}) |
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1005 @deftypefnx {} {} info_file (@var{new_val}, "local") |
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1006 Query or set the internal variable that specifies the name of the |
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1007 Octave info file. |
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1008 |
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1009 The default value is |
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1010 @file{@var{octave-home}/info/octave.info}, in |
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1011 which @var{octave-home} is the root directory of the Octave installation. |
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1012 The default value may be overridden by the environment variable |
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1013 @w{@env{OCTAVE_INFO_FILE}}, or the command line argument |
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1014 @option{--info-file FNAME}. |
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1015 |
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1016 When called from inside a function with the @qcode{"local"} option, the |
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1017 variable is changed locally for the function and any subroutines it calls. |
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1018 The original variable value is restored when exiting the function. |
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1019 @seealso{info_program, doc, help, makeinfo_program} |
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1020 @end deftypefn */) |
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1021 { |
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1022 octave::help_system& help_sys = interp.get_help_system (); |
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1023 |
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1024 return help_sys.info_file (args, nargout); |
8861 | 1025 } |
1026 | |
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1027 DEFMETHOD (info_program, interp, args, nargout, |
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1028 doc: /* -*- texinfo -*- |
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1029 @deftypefn {} {@var{val} =} info_program () |
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1030 @deftypefnx {} {@var{old_val} =} info_program (@var{new_val}) |
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1031 @deftypefnx {} {} info_program (@var{new_val}, "local") |
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1032 Query or set the internal variable that specifies the name of the |
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1033 info program to run. |
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1034 |
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1035 The default value is |
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1036 @file{@var{octave-home}/libexec/octave/@var{version}/exec/@var{arch}/info} |
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1037 in which @var{octave-home} is the root directory of the Octave installation, |
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1038 @var{version} is the Octave version number, and @var{arch} is the system |
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1039 type (for example, @code{i686-pc-linux-gnu}). The default value may be |
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1040 overridden by the environment variable |
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1041 @w{@env{OCTAVE_INFO_PROGRAM}}, or the command line argument |
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1042 @option{--info-program NAME}. |
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1043 |
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1044 When called from inside a function with the @qcode{"local"} option, the |
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1045 variable is changed locally for the function and any subroutines it calls. |
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1046 The original variable value is restored when exiting the function. |
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1047 @seealso{info_file, doc, help, makeinfo_program} |
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1048 @end deftypefn */) |
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1049 { |
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1050 octave::help_system& help_sys = interp.get_help_system (); |
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1051 |
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1052 return help_sys.info_program (args, nargout); |
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1053 } |
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1054 |
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1055 DEFMETHOD (makeinfo_program, interp, args, nargout, |
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1056 doc: /* -*- texinfo -*- |
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1057 @deftypefn {} {@var{val} =} makeinfo_program () |
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1058 @deftypefnx {} {@var{old_val} =} makeinfo_program (@var{new_val}) |
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1059 @deftypefnx {} {} makeinfo_program (@var{new_val}, "local") |
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1060 Query or set the internal variable that specifies the name of the |
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1061 program that Octave runs to format help text containing |
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1062 Texinfo markup commands. |
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1063 |
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1064 The default value is @code{makeinfo}. |
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1065 |
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1066 When called from inside a function with the @qcode{"local"} option, the |
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1067 variable is changed locally for the function and any subroutines it calls. |
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1068 The original variable value is restored when exiting the function. |
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1069 @seealso{texi_macros_file, info_file, info_program, doc, help} |
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1070 @end deftypefn */) |
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1071 { |
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1072 octave::help_system& help_sys = interp.get_help_system (); |
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1073 |
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1074 return help_sys.makeinfo_program (args, nargout); |
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1075 } |
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1076 |
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1077 DEFMETHOD (suppress_verbose_help_message, interp, args, nargout, |
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1078 doc: /* -*- texinfo -*- |
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1079 @deftypefn {} {@var{val} =} suppress_verbose_help_message () |
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1080 @deftypefnx {} {@var{old_val} =} suppress_verbose_help_message (@var{new_val}) |
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1081 @deftypefnx {} {} suppress_verbose_help_message (@var{new_val}, "local") |
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1082 Query or set the internal variable that controls whether Octave |
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1083 will add additional help information to the end of the output from |
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1084 the @code{help} command and usage messages for built-in commands. |
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1085 |
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1086 When called from inside a function with the @qcode{"local"} option, the |
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1087 variable is changed locally for the function and any subroutines it calls. |
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1088 The original variable value is restored when exiting the function. |
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1089 @end deftypefn */) |
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1090 { |
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1091 octave::help_system& help_sys = interp.get_help_system (); |
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1092 |
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1093 return help_sys.suppress_verbose_help_message (args, nargout); |
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1094 } |
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1095 |
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1096 DEFMETHOD (texi_macros_file, interp, args, nargout, |
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1097 doc: /* -*- texinfo -*- |
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1098 @deftypefn {} {@var{val} =} texi_macros_file () |
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1099 @deftypefnx {} {@var{old_val} =} texi_macros_file (@var{new_val}) |
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1100 @deftypefnx {} {} texi_macros_file (@var{new_val}, "local") |
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1101 Query or set the internal variable that specifies the name of the |
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1102 file containing Texinfo macros that are prepended to documentation strings |
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1103 before they are passed to makeinfo. |
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1104 |
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1105 The default value is |
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1106 @file{@var{octave-home}/share/octave/@var{version}/etc/macros.texi}, |
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1107 in which @var{octave-home} is the root directory of the Octave installation, |
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1108 and @var{version} is the Octave version number. |
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1109 The default value may be overridden by the environment variable |
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1110 @w{@env{OCTAVE_TEXI_MACROS_FILE}}, or the command line argument |
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1111 @option{--texi-macros-file FNAME}. |
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1112 |
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1113 When called from inside a function with the @qcode{"local"} option, the |
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1114 variable is changed locally for the function and any subroutines it calls. |
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1115 The original variable value is restored when exiting the function. |
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1116 @seealso{makeinfo_program} |
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1117 @end deftypefn */) |
14614
4e9dc46d4125
handle texinfo macros consistently in help system and manual
John W. Eaton <jwe@octave.org>
parents:
14360
diff
changeset
|
1118 { |
23721
b2d55b52ee51
new class to manage help system and associated variables
John W. Eaton <jwe@octave.org>
parents:
23693
diff
changeset
|
1119 octave::help_system& help_sys = interp.get_help_system (); |
21966
112b20240c87
move docstrings in C++ files out of C strings and into comments
John W. Eaton <jwe@octave.org>
parents:
21921
diff
changeset
|
1120 |
23721
b2d55b52ee51
new class to manage help system and associated variables
John W. Eaton <jwe@octave.org>
parents:
23693
diff
changeset
|
1121 return help_sys.texi_macros_file (args, nargout); |
5794 | 1122 } |