Mercurial > octave
annotate libinterp/corefcn/help.cc @ 25548:d6050ba12c0c
Call get_ASCII_filename for std::ifstream (bug #49118).
* debug.cc, dlmread.cc, help.cc, load-save.cc, urlwrite.cc, ov-java.cc,
fileinfo.cc, url-transfer.cc: Call get_ASCII_filename for filename argument of
std::ifstream to circumvent the wide char WinAPI.
author | Markus Mützel <markus.muetzel@gmx.de> |
---|---|
date | Tue, 03 Jul 2018 21:06:00 +0200 |
parents | 627d6bde9b8d |
children | ca413f326224 |
rev | line source |
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1 | 1 /* |
2 | |
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maint: Update copyright dates in all source files.
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3 Copyright (C) 1993-2018 John W. Eaton |
1 | 4 |
5 This file is part of Octave. | |
6 | |
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7 Octave is free software: you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation, either version 3 of the License, or |
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10 (at your option) any later version. |
1 | 11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
1 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
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19 <https://www.gnu.org/licenses/>. |
1 | 20 |
21 */ | |
22 | |
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23 #if defined (HAVE_CONFIG_H) |
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24 # include "config.h" |
1 | 25 #endif |
26 | |
1343 | 27 #include <cstdlib> |
28 #include <cstring> | |
29 | |
5769 | 30 #include <algorithm> |
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31 #include <fstream> |
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32 #include <istream> |
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33 #include <map> |
5765 | 34 #include <sstream> |
1755 | 35 #include <string> |
36 | |
3295 | 37 #include "cmd-edit.h" |
38 #include "file-ops.h" | |
6253 | 39 #include "file-stat.h" |
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40 #include "lo-sysdep.h" |
2926 | 41 #include "oct-env.h" |
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42 #include "oct-locbuf.h" |
1755 | 43 #include "str-vec.h" |
44 | |
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45 #include "Cell.h" |
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46 #include "builtin-defun-decls.h" |
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47 #include "call-stack.h" |
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48 #include "defaults.h" |
1352 | 49 #include "defun.h" |
50 #include "dirfns.h" | |
51 #include "error.h" | |
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52 #include "errwarn.h" |
1352 | 53 #include "help.h" |
2177 | 54 #include "input.h" |
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55 #include "interpreter-private.h" |
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56 #include "interpreter.h" |
5832 | 57 #include "load-path.h" |
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58 #include "ov-fcn-handle.h" |
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59 #include "ov-usr-fcn.h" |
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60 #include "ovl.h" |
1352 | 61 #include "pager.h" |
3018 | 62 #include "parse.h" |
1466 | 63 #include "pathsearch.h" |
3295 | 64 #include "procstream.h" |
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65 #include "quit.h" |
529 | 66 #include "sighandlers.h" |
67 #include "symtab.h" | |
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68 #include "unwind-prot.h" |
242 | 69 #include "utils.h" |
1352 | 70 #include "variables.h" |
3301 | 71 #include "version.h" |
529 | 72 |
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73 #include "default-defs.h" |
2189 | 74 |
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75 const static char * const operators[] = |
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76 { |
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77 "!", |
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78 "~", |
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79 "!=", |
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80 "~=", |
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81 R"(")", |
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82 "#", |
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83 "%", |
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84 "#{", |
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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 R"(.\)", |
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109 R"(\)", |
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110 ":", |
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111 ";", |
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112 "<", |
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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 nullptr |
1 | 123 }; |
124 | |
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125 const static string_vector operator_names (operators); |
1 | 126 |
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127 static bool |
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128 looks_like_html (const std::string& msg) |
3014 | 129 { |
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130 const size_t p1 = msg.find ('\n'); |
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131 std::string t = msg.substr (0, p1); |
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132 // FIXME: this comparison should be case-insensitive |
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133 const size_t p2 = t.find ("<html"); |
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134 |
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135 return (p2 != std::string::npos); |
2470 | 136 } |
3014 | 137 |
138 static bool | |
3523 | 139 looks_like_texinfo (const std::string& msg, size_t& p1) |
3295 | 140 { |
141 p1 = msg.find ('\n'); | |
142 | |
3523 | 143 std::string t = msg.substr (0, p1); |
3295 | 144 |
8021 | 145 if (p1 == std::string::npos) |
3295 | 146 p1 = 0; |
147 | |
148 size_t p2 = t.find ("-*- texinfo -*-"); | |
149 | |
8021 | 150 return (p2 != std::string::npos); |
3295 | 151 } |
152 | |
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153 namespace octave |
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154 { |
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155 octave_value |
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156 help_system::built_in_docstrings_file (const octave_value_list& args, |
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157 int nargout) |
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158 { |
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159 return set_internal_variable (m_built_in_docstrings_file, args, nargout, |
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160 "built_in_docstrings_file", false); |
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161 } |
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162 |
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163 octave_value |
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164 help_system::doc_cache_file (const octave_value_list& args, int nargout) |
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165 { |
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166 return set_internal_variable (m_doc_cache_file, args, nargout, |
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167 "doc_cache_file", false); |
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168 } |
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169 |
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170 octave_value |
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171 help_system::info_file (const octave_value_list& args, int nargout) |
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172 { |
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173 return set_internal_variable (m_info_file, args, nargout, |
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174 "info_file", false); |
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175 } |
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176 |
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177 octave_value |
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178 help_system::info_program (const octave_value_list& args, int nargout) |
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179 { |
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180 return set_internal_variable (m_info_program, args, nargout, |
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181 "info_program", false); |
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182 } |
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183 |
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184 octave_value |
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185 help_system::makeinfo_program (const octave_value_list& args, int nargout) |
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186 { |
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187 return set_internal_variable (m_makeinfo_program, args, nargout, |
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188 "makeinfo_program", false); |
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189 } |
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190 |
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191 octave_value |
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192 help_system::suppress_verbose_help_message (const octave_value_list& args, |
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193 int nargout) |
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194 { |
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195 return set_internal_variable (m_suppress_verbose_help_message, args, |
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196 nargout, "suppress_verbose_help_message"); |
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197 } |
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198 |
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199 octave_value |
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200 help_system::texi_macros_file (const octave_value_list& args, int nargout) |
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201 { |
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202 return set_internal_variable (m_texi_macros_file, args, nargout, |
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203 "texi_macros_file", false); |
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204 } |
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205 |
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206 std::string |
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207 help_system::raw_help (const std::string& nm, bool& symbol_found) const |
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208 { |
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209 std::string h; |
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210 std::string w; |
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211 std::string f; |
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212 |
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213 bool found; |
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214 |
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215 found = raw_help_from_symbol_table (nm, h, w, symbol_found); |
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216 |
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217 if (! found) |
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218 found = raw_help_from_file (nm, h, f, symbol_found); |
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219 |
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220 bool external_doc = h.compare (0, 12, "external-doc") == 0; |
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221 |
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222 if (! found || external_doc) |
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223 { |
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224 std::string tmp_nm = nm; |
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225 |
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226 if (external_doc && h.length () > 12 && h[12] == ':') |
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227 tmp_nm = h.substr (13); |
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228 |
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229 raw_help_from_docstrings_file (tmp_nm, h, symbol_found); |
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230 } |
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231 |
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232 return h; |
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233 } |
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234 |
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235 std::string help_system::which (const std::string& name, |
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236 std::string& type) const |
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237 { |
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238 std::string file; |
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239 |
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240 type = ""; |
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241 |
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242 symbol_table& symtab = m_interpreter.get_symbol_table (); |
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243 |
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244 octave_value val = symtab.find_function (name); |
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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 if (val.is_defined ()) |
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249 { |
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250 octave_function *fcn = val.function_value (); |
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251 |
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252 if (fcn) |
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253 { |
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254 file = fcn->fcn_file_name (); |
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255 |
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256 if (file.empty ()) |
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257 { |
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258 if (fcn->is_user_function ()) |
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259 type = "command-line function"; |
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260 else |
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261 { |
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262 file = fcn->src_file_name (); |
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263 type = "built-in function"; |
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264 } |
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265 } |
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266 else |
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267 type = val.is_user_script () ? "script" : "function"; |
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268 } |
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269 } |
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270 else |
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271 { |
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272 // We might find a file that contains only a doc string. |
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273 |
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274 load_path& lp = m_interpreter.get_load_path (); |
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275 |
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276 file = lp.find_fcn_file (name); |
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277 } |
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278 } |
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279 else |
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280 { |
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281 // File query. |
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282 |
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283 load_path& lp = m_interpreter.get_load_path (); |
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284 |
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285 // For compatibility: "file." queries "file". |
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286 if (name.size () > 1 && name[name.size () - 1] == '.') |
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287 file = lp.find_file (name.substr (0, name.size () - 1)); |
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288 else |
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289 file = lp.find_file (name); |
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290 |
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291 file = sys::env::make_absolute (file); |
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292 } |
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293 |
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294 return file; |
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295 } |
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296 |
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297 std::string help_system::which (const std::string& name) const |
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298 { |
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299 std::string type; |
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300 |
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301 return which (name, type); |
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302 } |
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303 |
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304 string_vector help_system::make_name_list (void) const |
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305 { |
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306 const static string_vector keywords |
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307 = Fiskeyword ()(0).string_vector_value (); |
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308 |
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309 const static int key_len = keywords.numel (); |
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310 |
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311 symbol_table& symtab = m_interpreter.get_symbol_table (); |
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312 |
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313 const string_vector bif = symtab.built_in_function_names (); |
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314 const int bif_len = bif.numel (); |
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315 |
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316 const string_vector cfl = symtab.cmdline_function_names (); |
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317 const int cfl_len = cfl.numel (); |
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318 |
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319 const string_vector lcl = symtab.variable_names (); |
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320 const int lcl_len = lcl.numel (); |
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321 |
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322 load_path& lp = m_interpreter.get_load_path (); |
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323 |
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324 const string_vector ffl = lp.fcn_names (); |
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325 const int ffl_len = ffl.numel (); |
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326 |
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327 const string_vector afl = autoloaded_functions (); |
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328 const int afl_len = afl.numel (); |
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329 |
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330 const string_vector lfl = local_functions (); |
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331 const int lfl_len = lfl.numel (); |
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332 |
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333 const int total_len |
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334 = key_len + bif_len + cfl_len + lcl_len + ffl_len + afl_len + lfl_len; |
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335 |
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336 string_vector list (total_len); |
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337 |
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338 // Put all the symbols in one big list. |
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339 |
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340 int j = 0; |
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341 int i = 0; |
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342 |
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343 for (i = 0; i < key_len; i++) |
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344 list[j++] = keywords[i]; |
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345 |
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346 for (i = 0; i < bif_len; i++) |
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347 list[j++] = bif[i]; |
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348 |
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349 for (i = 0; i < cfl_len; i++) |
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350 list[j++] = cfl[i]; |
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351 |
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352 for (i = 0; i < lcl_len; i++) |
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353 list[j++] = lcl[i]; |
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354 |
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355 for (i = 0; i < ffl_len; i++) |
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356 list[j++] = ffl[i]; |
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357 |
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358 for (i = 0; i < afl_len; i++) |
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359 list[j++] = afl[i]; |
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360 |
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361 for (i = 0; i < lfl_len; i++) |
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362 list[j++] = lfl[i]; |
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363 |
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364 return list; |
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365 } |
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366 |
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367 void help_system::get_help_text (const std::string& name, std::string& text, |
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368 std::string& format) const |
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369 { |
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370 bool symbol_found = false; |
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371 text = raw_help (name, symbol_found); |
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372 |
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373 format = "Not found"; |
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374 if (symbol_found) |
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375 { |
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376 size_t idx = -1; |
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377 if (text.empty ()) |
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378 { |
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379 format = "Not documented"; |
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380 } |
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381 else if (looks_like_texinfo (text, idx)) |
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382 { |
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383 format = "texinfo"; |
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384 text.erase (0, idx); |
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385 } |
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386 else if (looks_like_html (text)) |
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387 { |
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388 format = "html"; |
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389 } |
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390 else |
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391 { |
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392 format = "plain text"; |
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393 } |
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394 } |
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395 } |
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396 |
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397 void help_system::get_help_text_from_file (const std::string& fname, |
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398 std::string& text, |
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399 std::string& format) const |
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400 { |
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401 bool symbol_found = false; |
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402 |
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403 std::string f; |
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404 |
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405 raw_help_from_file (fname, text, f, symbol_found); |
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406 |
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407 format = "Not found"; |
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408 if (symbol_found) |
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409 { |
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410 size_t idx = -1; |
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411 if (text.empty ()) |
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412 { |
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413 format = "Not documented"; |
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414 } |
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415 else if (looks_like_texinfo (text, idx)) |
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416 { |
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417 format = "texinfo"; |
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418 text.erase (0, idx); |
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419 } |
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420 else if (looks_like_html (text)) |
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421 { |
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422 format = "html"; |
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423 } |
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424 else |
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425 { |
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426 format = "plain text"; |
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427 } |
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428 } |
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429 } |
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430 |
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431 std::string help_system::init_built_in_docstrings_file (void) |
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432 { |
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433 std::string df = sys::env::getenv ("OCTAVE_BUILT_IN_DOCSTRINGS_FILE"); |
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434 |
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435 std::string dir_sep = sys::file_ops::dir_sep_str (); |
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436 |
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437 if (df.empty ()) |
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438 df = config::oct_etc_dir () + dir_sep + "built-in-docstrings"; |
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439 |
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440 return df; |
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441 } |
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442 |
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443 std::string help_system::init_doc_cache_file (void) |
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444 { |
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445 std::string def_file = config::prepend_octave_home (OCTAVE_DOC_CACHE_FILE); |
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446 |
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447 std::string env_file = sys::env::getenv ("OCTAVE_DOC_CACHE_FILE"); |
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448 |
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449 return (env_file.empty () ? def_file : env_file); |
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450 } |
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451 |
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452 std::string help_system::init_info_file (void) |
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453 { |
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454 std::string std_info_file = config::prepend_octave_home (OCTAVE_INFOFILE); |
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455 |
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456 std::string oct_info_file = sys::env::getenv ("OCTAVE_INFO_FILE"); |
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457 |
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458 return (oct_info_file.empty () ? std_info_file : oct_info_file); |
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459 } |
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460 |
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461 std::string help_system::init_info_program (void) |
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462 { |
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463 std::string info_prog = sys::env::getenv ("OCTAVE_INFO_PROGRAM"); |
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464 |
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465 if (info_prog.empty ()) |
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466 info_prog = "info"; |
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467 |
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468 return info_prog; |
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469 } |
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470 |
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471 std::string help_system::init_texi_macros_file (void) |
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472 { |
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473 std::string def_file |
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474 = config::prepend_octave_home (OCTAVE_TEXI_MACROS_FILE); |
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475 |
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476 std::string env_file = sys::env::getenv ("OCTAVE_TEXI_MACROS_FILE"); |
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477 |
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478 return (env_file.empty () ? def_file : env_file); |
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479 } |
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480 |
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481 // Return a vector of all functions from this file, |
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482 // for use in command line auto-completion. |
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483 string_vector help_system::local_functions (void) const |
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484 { |
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485 string_vector retval; |
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486 |
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487 call_stack& cs = m_interpreter.get_call_stack (); |
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488 |
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489 octave_user_code *curr_fcn = cs.caller_user_code (); |
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490 |
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491 if (! curr_fcn) |
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492 return retval; |
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493 |
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494 // All subfunctions are listed in the top-level function of this file. |
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495 // If curr_fcn is a subfunction, then there must be a parent and |
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496 // curr_fcn will always be valid in and after executing this loop. |
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497 |
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498 while (curr_fcn->is_subfunction ()) |
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499 { |
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500 symbol_scope pscope = curr_fcn->parent_fcn_scope (); |
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501 curr_fcn = pscope.function (); |
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502 } |
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503 |
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504 // Get subfunctions. |
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505 const std::list<std::string> names = curr_fcn->subfunction_names (); |
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506 |
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507 size_t sz = names.size (); |
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508 retval.resize (sz); |
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509 |
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510 // Loop over them. |
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511 size_t i = 0; |
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512 for (const auto& nm : names) |
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513 retval(i++) = nm; |
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514 |
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515 return retval; |
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516 } |
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517 |
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518 bool help_system::raw_help_from_symbol_table (const std::string& nm, |
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519 std::string& h, std::string& w, |
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520 bool& symbol_found) const |
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521 { |
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522 bool retval = false; |
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523 |
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524 symbol_table& symtab = m_interpreter.get_symbol_table (); |
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525 |
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526 octave_value val = symtab.find_function (nm); |
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527 |
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528 if (val.is_defined ()) |
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529 { |
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530 octave_function *fcn = val.function_value (); |
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531 |
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532 if (fcn) |
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533 { |
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534 symbol_found = true; |
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535 |
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536 h = fcn->doc_string (); |
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537 |
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538 retval = true; |
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539 |
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540 w = fcn->fcn_file_name (); |
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541 |
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542 if (w.empty ()) |
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543 w = fcn->is_user_function () ? "command-line function" |
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544 : "built-in function"; |
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545 } |
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546 } |
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547 |
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548 return retval; |
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549 } |
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550 |
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551 bool help_system::raw_help_from_file (const std::string& nm, |
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552 std::string& h, std::string& file, |
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553 bool& symbol_found) const |
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554 { |
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555 bool retval = false; |
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556 |
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557 h = get_help_from_file (nm, symbol_found, file); |
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558 |
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559 if (h.length () > 0) |
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560 retval = true; |
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561 |
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562 return retval; |
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563 } |
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564 |
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565 bool |
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566 help_system::raw_help_from_docstrings_file (const std::string& nm, |
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567 std::string& h, |
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568 bool& symbol_found) const |
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569 { |
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570 typedef std::pair<std::streampos, std::streamoff> txt_limits_type; |
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571 typedef std::map<std::string, txt_limits_type> help_txt_map_type; |
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572 |
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573 static help_txt_map_type help_txt_map; |
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574 static bool initialized = false; |
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575 |
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576 h = ""; |
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577 symbol_found = false; |
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578 |
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579 // FIXME: Should we cache the timestamp of the file and reload the |
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580 // offsets if it changes? Or just warn about that? Or just ignore |
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581 // it, and assume it won't change? |
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582 |
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583 if (! initialized) |
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584 { |
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585 std::ifstream file ( |
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586 octave::sys::get_ASCII_filename (m_built_in_docstrings_file).c_str (), |
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587 std::ios::in | std::ios::binary); |
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588 |
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589 if (! file) |
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590 error ("failed to open docstrings file: %s", |
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591 m_built_in_docstrings_file.c_str ()); |
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592 |
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593 // Ignore header; |
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594 file.ignore (std::numeric_limits<std::streamsize>::max(), 0x1d); |
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595 |
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596 if (file.eof ()) |
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597 error ("invalid built-in-docstrings file!"); |
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598 |
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599 // FIXME: eliminate fixed buffer size. |
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600 size_t bufsize = 1000; |
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601 OCTAVE_LOCAL_BUFFER (char, buf, bufsize); |
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602 |
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603 while (! file.eof ()) |
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604 { |
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605 std::string name; |
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606 int i = 0; |
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607 int c; |
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608 while (file && (c = file.get ()) != std::istream::traits_type::eof ()) |
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609 { |
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610 if (c == '\n' || c == '\r') |
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611 { |
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612 buf[i] = '\0'; |
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613 name = buf; |
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614 break; |
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615 } |
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616 else |
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617 buf[i++] = c; |
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618 } |
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619 |
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620 // Skip @c FILENAME which is part of current DOCSTRINGS |
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621 // syntax. This may disappear if a specific format for |
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622 // docstring files is developed. |
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623 while (file |
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624 && (c = file.get ()) != std::istream::traits_type::eof () |
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625 && c != '\n' && c != '\r') |
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626 ; // skip text |
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627 |
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628 // skip newline characters |
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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 file.unget (); |
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635 |
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636 // Position of beginning of help text. |
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637 std::streampos beg = file.tellg (); |
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638 |
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639 // Skip help text. |
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640 file.ignore (std::numeric_limits<std::streamsize>::max(), 0x1d); |
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641 |
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642 // Position of end of help text. |
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643 std::streamoff len; |
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644 |
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645 if (! file.eof ()) |
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646 len = file.tellg () - beg - 1; |
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647 else |
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648 { |
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649 file.seekg (0, file.end); |
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650 len = file.tellg () - beg - 1; |
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651 file.setstate (file.eofbit); // reset eof flag |
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652 } |
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653 |
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654 help_txt_map[name] = txt_limits_type (beg, len); |
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655 } |
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656 |
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657 initialized = true; |
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658 } |
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659 |
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660 help_txt_map_type::const_iterator it = help_txt_map.find (nm); |
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661 |
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662 if (it != help_txt_map.end ()) |
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663 { |
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664 txt_limits_type txt_limits = it->second; |
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665 |
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666 std::streampos beg = txt_limits.first; |
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667 std::streamoff len = txt_limits.second; |
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668 |
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669 std::ifstream file ( |
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670 octave::sys::get_ASCII_filename (m_built_in_docstrings_file).c_str (), |
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671 std::ios::in | std::ios::binary); |
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672 |
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673 if (! file) |
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674 error ("failed to open docstrings file: %s", |
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675 m_built_in_docstrings_file.c_str ()); |
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676 |
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677 file.seekg (beg); |
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678 |
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679 size_t txt_len = len; |
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680 OCTAVE_LOCAL_BUFFER (char, buf, txt_len + 1); |
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681 |
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682 file.read (buf, txt_len); |
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683 |
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684 buf[txt_len] = '\0'; |
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685 |
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686 h = buf; |
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687 |
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688 symbol_found = true; |
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689 } |
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690 |
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691 return symbol_found; |
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692 } |
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693 |
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694 // FIXME: It's not likely that this does the right thing now. |
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695 |
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696 string_vector make_name_list (void) |
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697 { |
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698 help_system& help_sys = __get_help_system__ ("make_name_list"); |
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699 |
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700 return help_sys.make_name_list (); |
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701 } |
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702 } |
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703 |
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704 DEFMETHOD (get_help_text, interp, args, , |
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705 doc: /* -*- texinfo -*- |
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706 @deftypefn {} {[@var{text}, @var{format}] =} get_help_text (@var{name}) |
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707 Return the raw help text of function @var{name}. |
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708 |
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709 The raw help text is returned in @var{text} and the format in @var{format} |
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710 The format is a string which is one of @qcode{"texinfo"}, |
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711 @qcode{"html"}, or @qcode{"plain text"}. |
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712 @seealso{get_help_text_from_file} |
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713 @end deftypefn */) |
529 | 714 { |
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715 if (args.length () != 1) |
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716 print_usage (); |
1755 | 717 |
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718 const std::string name = args(0).xstring_value ("get_help_text: NAME must be a string"); |
529 | 719 |
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720 octave::help_system& help_sys = interp.get_help_system (); |
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721 |
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722 std::string text, format; |
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723 |
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724 help_sys.get_help_text (name, text, format); |
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725 |
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726 return ovl (text, format); |
529 | 727 } |
728 | |
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729 DEFMETHOD (get_help_text_from_file, interp, args, , |
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730 doc: /* -*- texinfo -*- |
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731 @deftypefn {} {[@var{text}, @var{format}] =} get_help_text_from_file (@var{fname}) |
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732 Return the raw help text from the file @var{fname}. |
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733 |
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734 The raw help text is returned in @var{text} and the format in @var{format} |
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735 The format is a string which is one of @qcode{"texinfo"}, |
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736 @qcode{"html"}, or @qcode{"plain text"}. |
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737 @seealso{get_help_text} |
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738 @end deftypefn */) |
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739 { |
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740 if (args.length () != 1) |
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741 print_usage (); |
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742 |
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743 const std::string fname = args(0).xstring_value ("get_help_text_from_file: NAME must be a string"); |
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744 |
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745 octave::help_system& help_sys = interp.get_help_system (); |
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746 |
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747 std::string text, format; |
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748 |
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749 help_sys.get_help_text_from_file (fname, text, format); |
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750 |
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751 return ovl (text, format); |
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752 } |
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753 |
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754 // Return a cell array of strings containing the names of all operators. |
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755 |
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756 DEFUN (__operators__, , , |
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757 doc: /* -*- texinfo -*- |
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758 @deftypefn {} {} __operators__ () |
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759 Undocumented internal function. |
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760 @end deftypefn */) |
3355 | 761 { |
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762 return ovl (Cell (operator_names)); |
3355 | 763 } |
764 | |
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765 // Return a cell array of strings containing the names of all keywords. |
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766 // iskeyword() function is located in lex.ll and is based on what the parser |
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767 // thinks is a keyword. |
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768 |
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769 DEFALIAS (__keywords__, iskeyword) |
581 | 770 |
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771 // Return a cell array of strings with the names of all builtin functions. |
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772 |
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773 DEFMETHOD (__builtins__, interp, , , |
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774 doc: /* -*- texinfo -*- |
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775 @deftypefn {} {} __builtins__ () |
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776 Undocumented internal function. |
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777 @end deftypefn */) |
3355 | 778 { |
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779 octave::symbol_table& symtab = interp.get_symbol_table (); |
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780 |
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781 const string_vector bif = symtab.built_in_function_names (); |
3355 | 782 |
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783 return ovl (Cell (bif)); |
3355 | 784 } |
785 | |
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786 DEFMETHOD (localfunctions, interp, args, , |
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787 doc: /* -*- texinfo -*- |
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788 @deftypefn {} {} localfunctions () |
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789 Return a list of all local functions, i.e., subfunctions, within the current |
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790 file. |
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791 |
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792 The return value is a column cell array of function handles to all local |
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793 functions accessible from the function from which @code{localfunctions} is |
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794 called. Nested functions are @emph{not} included in the list. |
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795 |
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796 If the call is from the command line, an anonymous function, or a script, |
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797 the return value is an empty cell array. |
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798 |
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799 @seealso{functions} |
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800 @end deftypefn */) |
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801 { |
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802 if (args.length () != 0) |
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803 print_usage (); |
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804 |
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805 Cell retval; |
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|
806 |
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|
807 // Find the main function we are in. |
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808 octave::call_stack& cs = interp.get_call_stack (); |
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809 octave_user_code *parent_fcn = cs.debug_user_code (); |
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810 |
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811 if (! parent_fcn) |
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812 return ovl (retval); |
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|
813 |
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|
814 // Find the subfunctions of this function. |
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815 // 1) subfunction_names contains only valid subfunctions |
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816 // 2) subfunctions contains both nested functions and subfunctions |
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817 const std::list<std::string> names = parent_fcn->subfunction_names (); |
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818 const std::map<std::string, octave_value> h = parent_fcn->subfunctions (); |
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819 |
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|
820 size_t sz = names.size (); |
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821 retval.resize (dim_vector (sz, 1)); |
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822 |
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|
823 // loop over them. |
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824 size_t i = 0; |
22862
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|
825 for (const auto& nm : names) |
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826 { |
22862
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827 std::map<std::string, octave_value>::const_iterator nm_fcn = h.find (nm); |
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828 if (nm_fcn != h.end ()) |
22862
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|
829 retval(i++) = octave_value (new octave_fcn_handle (nm_fcn->second, nm)); |
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|
830 } |
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|
831 |
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|
832 return ovl (retval); |
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|
833 } |
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|
834 |
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|
835 /* |
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|
836 %!test |
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837 %! f = tempname (".", "oct_"); |
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838 %! fcn_name = f(3:end); |
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839 %! f = [f ".m"]; |
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840 %! unwind_protect |
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841 %! fid = fopen (f, "w+"); |
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842 %! fprintf (fid, "function z = %s\n z = localfunctions; end\n", fcn_name); |
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843 %! fprintf (fid, "function z = b(x)\n z = x+1; end\n"); |
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844 %! fprintf (fid, "function z = c(x)\n z = 2*x; end\n"); |
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845 %! fclose (fid); |
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846 %! d = eval (fcn_name); |
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847 %! assert (size (d), [2, 1]); |
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|
848 %! assert (d{1} (3), 4); |
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|
849 %! assert (d{2} (3), 6); |
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850 %! unwind_protect_cleanup |
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|
851 %! unlink (f); |
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|
852 %! end_unwind_protect |
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|
853 */ |
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|
854 |
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855 DEFMETHOD (__which__, interp, args, , |
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856 doc: /* -*- texinfo -*- |
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857 @deftypefn {} {} __which__ (@var{name}, @dots{}) |
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858 Undocumented internal function. |
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859 @end deftypefn */) |
581 | 860 { |
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861 octave::help_system& help_sys = interp.get_help_system (); |
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862 |
20996 | 863 string_vector argv = args.make_argv (); |
1755 | 864 |
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865 int nargin = argv.numel (); |
581 | 866 |
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867 octave_map m (dim_vector (1, nargin)); |
581 | 868 |
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869 Cell names (1, nargin); |
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870 Cell files (1, nargin); |
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871 Cell types (1, nargin); |
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872 |
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873 for (int i = 0; i < nargin; i++) |
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874 { |
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875 std::string name = argv[i]; |
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876 |
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|
877 std::string type; |
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878 |
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879 std::string file = help_sys.which (name, type); |
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880 |
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881 names(i) = name; |
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882 files(i) = file; |
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883 types(i) = type; |
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884 } |
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|
885 |
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886 m.assign ("name", names); |
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887 m.assign ("file", files); |
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888 m.assign ("type", types); |
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|
889 |
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|
890 return ovl (m); |
581 | 891 } |
892 | |
8812
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893 // Return a cell array of strings containing the names of all |
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894 // functions available in DIRECTORY. If no directory is given, search |
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895 // the current path. |
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896 |
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|
897 DEFMETHOD (__list_functions__, interp, args, , |
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898 doc: /* -*- texinfo -*- |
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899 @deftypefn {} {@var{retval} =} __list_functions__ () |
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900 @deftypefnx {} {@var{retval} =} __list_functions__ (@var{directory}) |
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901 Return a list of all functions (.m and .oct functions) in the load path. |
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902 |
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|
903 If the optional argument @var{directory} is given then list only the functions |
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|
904 in that directory. |
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|
905 @seealso{path} |
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906 @end deftypefn */) |
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907 { |
8863
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908 octave_value retval; |
5447 | 909 |
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910 octave::load_path& lp = interp.get_load_path (); |
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911 |
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912 if (args.length () == 0) |
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913 { |
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914 // Get list of all functions |
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915 string_vector ffl = lp.fcn_names (); |
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916 string_vector afl = octave::autoloaded_functions (); |
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917 |
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918 retval = Cell (ffl.append (afl)); |
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919 } |
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920 else |
5447 | 921 { |
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922 std::string dir = args(0).xstring_value ("__list_functions__: DIRECTORY argument must be a string"); |
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923 |
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924 string_vector fl = lp.files (dir, true); |
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925 |
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926 // Return a sorted list with unique entries (in case of .m and .oct |
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927 // versions of the same function in a given directory, for example). |
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928 fl.sort (true); |
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929 |
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930 retval = Cell (fl); |
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931 } |
5447 | 932 |
933 return retval; | |
934 } | |
935 | |
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936 DEFMETHOD (built_in_docstrings_file, interp, args, nargout, |
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937 doc: /* -*- texinfo -*- |
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938 @deftypefn {} {@var{val} =} built_in_docstrings_file () |
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939 @deftypefnx {} {@var{old_val} =} built_in_docstrings_file (@var{new_val}) |
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940 @deftypefnx {} {} built_in_docstrings_file (@var{new_val}, "local") |
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941 Query or set the internal variable that specifies the name of the |
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942 file containing docstrings for built-in Octave functions. |
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943 |
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944 The default value is |
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945 @file{@var{octave-home}/share/octave/@var{version}/etc/built-in-docstrings}, |
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946 in which @var{octave-home} is the root directory of the Octave installation, |
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947 and @var{version} is the Octave version number. The default value may be |
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948 overridden by the environment variable |
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949 @w{@env{OCTAVE_BUILT_IN_DOCSTRINGS_FILE}}, or the command line argument |
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950 @option{--built-in-docstrings-file FNAME}. |
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951 |
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952 Note: This variable is only used when Octave is initializing itself. |
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953 Modifying it during a running session of Octave will have no effect. |
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954 @end deftypefn */) |
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955 { |
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956 octave::help_system& help_sys = interp.get_help_system (); |
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957 |
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958 return help_sys.built_in_docstrings_file (args, nargout); |
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959 } |
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960 |
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961 DEFMETHOD (doc_cache_file, interp, args, nargout, |
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962 doc: /* -*- texinfo -*- |
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963 @deftypefn {} {@var{val} =} doc_cache_file () |
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964 @deftypefnx {} {@var{old_val} =} doc_cache_file (@var{new_val}) |
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965 @deftypefnx {} {} doc_cache_file (@var{new_val}, "local") |
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966 Query or set the internal variable that specifies the name of the |
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967 Octave documentation cache file. |
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968 |
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969 A cache file significantly improves the performance of the @code{lookfor} |
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970 command. The default value is |
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971 @file{@var{octave-home}/share/octave/@var{version}/etc/doc-cache}, |
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972 in which @var{octave-home} is the root directory of the Octave installation, |
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973 and @var{version} is the Octave version number. |
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974 The default value may be overridden by the environment variable |
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975 @w{@env{OCTAVE_DOC_CACHE_FILE}}, or the command line argument |
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976 @option{--doc-cache-file FNAME}. |
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977 |
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978 When called from inside a function with the @qcode{"local"} option, the |
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979 variable is changed locally for the function and any subroutines it calls. |
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980 The original variable value is restored when exiting the function. |
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981 @seealso{doc_cache_create, lookfor, info_program, doc, help, makeinfo_program} |
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982 @seealso{lookfor} |
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983 @end deftypefn */) |
8861 | 984 { |
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985 octave::help_system& help_sys = interp.get_help_system (); |
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986 |
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987 return help_sys.doc_cache_file (args, nargout); |
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988 } |
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989 |
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990 DEFMETHOD (info_file, interp, args, nargout, |
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991 doc: /* -*- texinfo -*- |
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992 @deftypefn {} {@var{val} =} info_file () |
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993 @deftypefnx {} {@var{old_val} =} info_file (@var{new_val}) |
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994 @deftypefnx {} {} info_file (@var{new_val}, "local") |
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995 Query or set the internal variable that specifies the name of the |
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996 Octave info file. |
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997 |
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998 The default value is |
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999 @file{@var{octave-home}/info/octave.info}, in |
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1000 which @var{octave-home} is the root directory of the Octave installation. |
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1001 The default value may be overridden by the environment variable |
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1002 @w{@env{OCTAVE_INFO_FILE}}, or the command line argument |
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1003 @option{--info-file FNAME}. |
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1004 |
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1005 When called from inside a function with the @qcode{"local"} option, the |
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1006 variable is changed locally for the function and any subroutines it calls. |
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1007 The original variable value is restored when exiting the function. |
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1008 @seealso{info_program, doc, help, makeinfo_program} |
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1009 @end deftypefn */) |
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1010 { |
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1011 octave::help_system& help_sys = interp.get_help_system (); |
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1012 |
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1013 return help_sys.info_file (args, nargout); |
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1015 | |
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1016 DEFMETHOD (info_program, interp, args, nargout, |
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1017 doc: /* -*- texinfo -*- |
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1018 @deftypefn {} {@var{val} =} info_program () |
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1019 @deftypefnx {} {@var{old_val} =} info_program (@var{new_val}) |
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1020 @deftypefnx {} {} info_program (@var{new_val}, "local") |
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1021 Query or set the internal variable that specifies the name of the |
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1022 info program to run. |
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1023 |
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1024 The default value is |
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1025 @file{@var{octave-home}/libexec/octave/@var{version}/exec/@var{arch}/info} |
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1026 in which @var{octave-home} is the root directory of the Octave installation, |
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1027 @var{version} is the Octave version number, and @var{arch} is the system |
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1028 type (for example, @code{i686-pc-linux-gnu}). The default value may be |
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1029 overridden by the environment variable |
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1030 @w{@env{OCTAVE_INFO_PROGRAM}}, or the command line argument |
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1031 @option{--info-program NAME}. |
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1032 |
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1033 When called from inside a function with the @qcode{"local"} option, the |
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1034 variable is changed locally for the function and any subroutines it calls. |
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1035 The original variable value is restored when exiting the function. |
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1036 @seealso{info_file, doc, help, makeinfo_program} |
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1037 @end deftypefn */) |
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1038 { |
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1039 octave::help_system& help_sys = interp.get_help_system (); |
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1040 |
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1041 return help_sys.info_program (args, nargout); |
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1042 } |
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1043 |
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1044 DEFMETHOD (makeinfo_program, interp, args, nargout, |
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1045 doc: /* -*- texinfo -*- |
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1046 @deftypefn {} {@var{val} =} makeinfo_program () |
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1047 @deftypefnx {} {@var{old_val} =} makeinfo_program (@var{new_val}) |
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1048 @deftypefnx {} {} makeinfo_program (@var{new_val}, "local") |
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1049 Query or set the internal variable that specifies the name of the |
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1050 program that Octave runs to format help text containing |
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1051 Texinfo markup commands. |
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1052 |
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1053 The default value is @code{makeinfo}. |
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1054 |
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1055 When called from inside a function with the @qcode{"local"} option, the |
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1056 variable is changed locally for the function and any subroutines it calls. |
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1057 The original variable value is restored when exiting the function. |
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1058 @seealso{texi_macros_file, info_file, info_program, doc, help} |
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1059 @end deftypefn */) |
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1060 { |
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1061 octave::help_system& help_sys = interp.get_help_system (); |
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1062 |
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1063 return help_sys.makeinfo_program (args, nargout); |
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1064 } |
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1065 |
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1066 DEFMETHOD (suppress_verbose_help_message, interp, args, nargout, |
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1067 doc: /* -*- texinfo -*- |
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1068 @deftypefn {} {@var{val} =} suppress_verbose_help_message () |
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1069 @deftypefnx {} {@var{old_val} =} suppress_verbose_help_message (@var{new_val}) |
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1070 @deftypefnx {} {} suppress_verbose_help_message (@var{new_val}, "local") |
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1071 Query or set the internal variable that controls whether Octave |
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1072 will add additional help information to the end of the output from |
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1073 the @code{help} command and usage messages for built-in commands. |
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1074 |
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1075 When called from inside a function with the @qcode{"local"} option, the |
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1076 variable is changed locally for the function and any subroutines it calls. |
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1077 The original variable value is restored when exiting the function. |
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1078 @end deftypefn */) |
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1079 { |
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1080 octave::help_system& help_sys = interp.get_help_system (); |
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1081 |
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1082 return help_sys.suppress_verbose_help_message (args, nargout); |
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1083 } |
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1084 |
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1085 DEFMETHOD (texi_macros_file, interp, args, nargout, |
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1086 doc: /* -*- texinfo -*- |
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1087 @deftypefn {} {@var{val} =} texi_macros_file () |
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1088 @deftypefnx {} {@var{old_val} =} texi_macros_file (@var{new_val}) |
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1089 @deftypefnx {} {} texi_macros_file (@var{new_val}, "local") |
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1090 Query or set the internal variable that specifies the name of the |
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1091 file containing Texinfo macros that are prepended to documentation strings |
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1092 before they are passed to makeinfo. |
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1093 |
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1094 The default value is |
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1095 @file{@var{octave-home}/share/octave/@var{version}/etc/macros.texi}, |
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1096 in which @var{octave-home} is the root directory of the Octave installation, |
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1097 and @var{version} is the Octave version number. |
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1098 The default value may be overridden by the environment variable |
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1099 @w{@env{OCTAVE_TEXI_MACROS_FILE}}, or the command line argument |
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1100 @option{--texi-macros-file FNAME}. |
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1101 |
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1102 When called from inside a function with the @qcode{"local"} option, the |
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1103 variable is changed locally for the function and any subroutines it calls. |
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1104 The original variable value is restored when exiting the function. |
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1105 @seealso{makeinfo_program} |
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1106 @end deftypefn */) |
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1107 { |
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1108 octave::help_system& help_sys = interp.get_help_system (); |
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1109 |
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1110 return help_sys.texi_macros_file (args, nargout); |
5794 | 1111 } |