Mercurial > hg > octave-nkf
annotate src/help.cc @ 11273:bd2643f0ce57 ss-3-3-54
snapshot 3.3.54
author | John W. Eaton <jwe@octave.org> |
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date | Fri, 19 Nov 2010 16:05:58 -0500 |
parents | 4ffa19147604 |
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rev | line source |
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1 | 1 /* |
2 | |
7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, |
8920 | 4 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton |
1 | 5 |
6 This file is part of Octave. | |
7 | |
8 Octave is free software; you can redistribute it and/or modify it | |
9 under the terms of the GNU General Public License as published by the | |
7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
11 option) any later version. | |
1 | 12 |
13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
7016 | 19 along with Octave; see the file COPYING. If not, see |
20 <http://www.gnu.org/licenses/>. | |
1 | 21 |
22 */ | |
23 | |
240 | 24 #ifdef HAVE_CONFIG_H |
1192 | 25 #include <config.h> |
1 | 26 #endif |
27 | |
1343 | 28 #include <cstdlib> |
29 #include <cstring> | |
30 | |
5769 | 31 #include <algorithm> |
3503 | 32 #include <iostream> |
33 #include <fstream> | |
5765 | 34 #include <sstream> |
1755 | 35 #include <string> |
36 | |
1295 | 37 #include <sys/types.h> |
38 #include <unistd.h> | |
1343 | 39 |
3295 | 40 #include "cmd-edit.h" |
41 #include "file-ops.h" | |
6253 | 42 #include "file-stat.h" |
2926 | 43 #include "oct-env.h" |
1755 | 44 #include "str-vec.h" |
45 | |
2492 | 46 #include <defaults.h> |
1352 | 47 #include "defun.h" |
48 #include "dirfns.h" | |
49 #include "error.h" | |
2202 | 50 #include "gripes.h" |
1352 | 51 #include "help.h" |
2177 | 52 #include "input.h" |
5832 | 53 #include "load-path.h" |
1755 | 54 #include "oct-obj.h" |
2976 | 55 #include "ov-usr-fcn.h" |
1352 | 56 #include "pager.h" |
3018 | 57 #include "parse.h" |
1466 | 58 #include "pathsearch.h" |
3295 | 59 #include "procstream.h" |
7336 | 60 #include "pt-pr-code.h" |
529 | 61 #include "sighandlers.h" |
62 #include "symtab.h" | |
2694 | 63 #include "syswait.h" |
1755 | 64 #include "toplev.h" |
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65 #include "unwind-prot.h" |
242 | 66 #include "utils.h" |
1352 | 67 #include "variables.h" |
3301 | 68 #include "version.h" |
5447 | 69 #include "quit.h" |
529 | 70 |
8861 | 71 // Name of the doc cache file specified on the command line. |
72 // (--doc-cache-file file) | |
73 std::string Vdoc_cache_file; | |
74 | |
2202 | 75 // Name of the info file specified on command line. |
76 // (--info-file file) | |
3523 | 77 std::string Vinfo_file; |
2202 | 78 |
79 // Name of the info reader we'd like to use. | |
80 // (--info-program program) | |
5794 | 81 std::string Vinfo_program; |
2202 | 82 |
3686 | 83 // Name of the makeinfo program to run. |
5794 | 84 static std::string Vmakeinfo_program = "makeinfo"; |
3686 | 85 |
2189 | 86 // If TRUE, don't print additional help message in help and usage |
87 // functions. | |
5794 | 88 static bool Vsuppress_verbose_help_message = false; |
2189 | 89 |
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90 #include <map> |
3016 | 91 |
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92 typedef std::map<std::string, std::string> map_type; |
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93 typedef map_type::value_type pair_type; |
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94 typedef map_type::const_iterator map_iter; |
3016 | 95 |
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96 template<typename T, std::size_t z> |
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97 std::size_t |
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98 size (T const (&)[z]) |
1 | 99 { |
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100 return z; |
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101 } |
1 | 102 |
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103 // FIXME -- The descriptions could easily be in texinfo -- should they? |
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104 const static pair_type operators[] = |
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105 { |
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106 pair_type ("!", |
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107 "Logical not operator. See also `~'.\n"), |
1 | 108 |
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109 pair_type ("!=", |
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110 "Logical not equals operator. See also `~='.\n"), |
1 | 111 |
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112 pair_type ("\"", |
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113 "String delimiter.\n"), |
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114 |
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115 pair_type ("#", |
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116 "Begin comment character. See also `%'."), |
1 | 117 |
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118 pair_type ("%", |
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119 "Begin comment charcter. See also `#'."), |
1 | 120 |
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121 pair_type ("&", |
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122 "Element by element logical and operator. See also `&&'."), |
1 | 123 |
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124 pair_type ("&&", |
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125 "Logical and operator (with short-circuit evaluation). See also `&'."), |
1 | 126 |
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127 pair_type ("'", |
1 | 128 "Matrix transpose operator. For complex matrices, computes the\n\ |
129 complex conjugate (Hermitian) transpose. See also `.''\n\ | |
130 \n\ | |
131 The single quote character may also be used to delimit strings, but\n\ | |
132 it is better to use the double quote character, since that is never\n\ | |
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133 ambiguous"), |
1 | 134 |
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135 pair_type ("(", |
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136 "Array index or function argument delimiter."), |
1 | 137 |
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138 pair_type (")", |
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139 "Array index or function argument delimiter."), |
1 | 140 |
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141 pair_type ("*", |
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142 "Multiplication operator. See also `.*'"), |
1 | 143 |
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144 pair_type ("**", |
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145 "Power operator. See also `^', `.**', and `.^'"), |
1 | 146 |
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147 pair_type ("+", |
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148 "Addition operator."), |
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149 |
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150 pair_type ("++", |
5339 | 151 "Increment operator. As in C, may be applied as a prefix or postfix\n\ |
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152 operator."), |
1 | 153 |
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154 pair_type (",", |
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155 "Array index, function argument, or command separator."), |
1 | 156 |
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157 pair_type ("-", |
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158 "Subtraction or unary negation operator."), |
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159 |
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160 pair_type ("--", |
5339 | 161 "Decrement operator. As in C, may be applied as a prefix or postfix\n\ |
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162 operator."), |
1 | 163 |
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164 pair_type (".'", |
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165 "Matrix transpose operator. For complex matrices, computes the\n\ |
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166 transpose, *not* the complex conjugate transpose. See also `''."), |
1 | 167 |
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168 pair_type (".*", |
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169 "Element by element multiplication operator. See also `*'."), |
1 | 170 |
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171 pair_type (".**", |
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172 "Element by element power operator. See also `**', `^', and `.^'."), |
1 | 173 |
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174 pair_type ("./", |
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175 "Element by element division operator. See also `/' and `\\'."), |
1 | 176 |
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177 pair_type (".^", |
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178 "Element by element power operator. See also `**', `^', and `.^'."), |
1 | 179 |
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180 pair_type ("/", |
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181 "Right division. See also `\\' and `./'."), |
1 | 182 |
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183 pair_type (":", |
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184 "Select entire rows or columns of matrices."), |
1 | 185 |
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186 pair_type (";", |
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187 "Array row or command separator. See also `,'."), |
1 | 188 |
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189 pair_type ("<", |
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190 "Less than operator."), |
1 | 191 |
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192 pair_type ("<=", |
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193 "Less than or equals operator."), |
1 | 194 |
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195 pair_type ("=", |
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196 "Assignment operator."), |
1 | 197 |
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198 pair_type ("==", |
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199 "Equality test operator."), |
1 | 200 |
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201 pair_type (">", |
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202 "Greater than operator."), |
1 | 203 |
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204 pair_type (">=", |
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205 "Greater than or equals operator."), |
1 | 206 |
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207 pair_type ("[", |
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208 "Return list delimiter. See also `]'."), |
1 | 209 |
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210 pair_type ("\\", |
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211 "Left division operator. See also `/' and `./'."), |
1 | 212 |
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213 pair_type ("]", |
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214 "Return list delimiter. See also `['."), |
1 | 215 |
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216 pair_type ("^", |
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217 "Power operator. See also `**', `.^', and `.**.'"), |
1 | 218 |
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219 pair_type ("|", |
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220 "Element by element logical or operator. See also `||'."), |
1 | 221 |
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222 pair_type ("||", |
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223 "Logical or operator (with short-circuit evaluation). See also `|'."), |
1 | 224 |
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225 pair_type ("~", |
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226 "Logical not operator. See also `!' and `~'."), |
1 | 227 |
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228 pair_type ("~=", |
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229 "Logical not equals operator. See also `!='."), |
1 | 230 }; |
231 | |
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232 const static pair_type keywords[] = |
1 | 233 { |
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234 pair_type ("break", |
5818 | 235 "-*- texinfo -*-\n\ |
236 @deffn Keyword break\n\ | |
237 Exit the innermost enclosing do, while or for loop.\n\ | |
238 @seealso{do, while, for, continue}\n\ | |
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239 @end deffn"), |
5040 | 240 |
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241 pair_type ("case", |
5818 | 242 "-*- texinfo -*-\n\ |
243 @deffn Keyword case @{@var{value}@}\n\ | |
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244 A case statement in an switch. Octave cases are exclusive and do not\n\ |
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245 fall-through as do C-language cases. A switch statement must have at least\n\ |
5818 | 246 one case. See @code{switch} for an example.\n\ |
247 @seealso{switch}\n\ | |
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248 @end deffn"), |
1 | 249 |
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250 pair_type ("catch", |
5818 | 251 "-*- texinfo -*-\n\ |
252 @deffn Keyword catch\n\ | |
253 Begin the cleanup part of a try-catch block.\n\ | |
254 @seealso{try}\n\ | |
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255 @end deffn"), |
1489 | 256 |
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257 pair_type ("continue", |
5818 | 258 "-*- texinfo -*-\n\ |
259 @deffn Keyword continue\n\ | |
260 Jump to the end of the innermost enclosing do, while or for loop.\n\ | |
261 @seealso{do, while, for, break}\n\ | |
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262 @end deffn"), |
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264 pair_type ("do", |
5818 | 265 "-*- texinfo -*-\n\ |
266 @deffn Keyword do\n\ | |
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267 Begin a do-until loop. This differs from a do-while loop in that the\n\ |
5818 | 268 body of the loop is executed at least once.\n\ |
269 @seealso{while}\n\ | |
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270 @end deffn"), |
1 | 271 |
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272 pair_type ("else", |
5818 | 273 "-*- texinfo -*-\n\ |
274 @deffn Keyword else\n\ | |
275 Alternate action for an if block. See @code{if} for an example.\n\ | |
276 @seealso{if}\n\ | |
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277 @end deffn"), |
1 | 278 |
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279 pair_type ("elseif", |
5818 | 280 "-*- texinfo -*-\n\ |
281 @deffn Keyword elseif (@var{condition})\n\ | |
282 Alternate conditional test for an if block. See @code{if} for an example.\n\ | |
283 @seealso{if}\n\ | |
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284 @end deffn"), |
1 | 285 |
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286 pair_type ("end", |
5818 | 287 "-*- texinfo -*-\n\ |
288 @deffn Keyword end\n\ | |
10840 | 289 Mark the end of any @code{for}, @code{if}, @code{do}, @code{while}, or\n\ |
290 @code{function} block.\n\ | |
5818 | 291 @seealso{for, if, do, while, function}\n\ |
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292 @end deffn"), |
928 | 293 |
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294 pair_type ("end_try_catch", |
5818 | 295 "-*- texinfo -*-\n\ |
296 @deffn Keyword end_try_catch\n\ | |
297 Mark the end of an @code{try-catch} block.\n\ | |
298 @seealso{try, catch}\n\ | |
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299 @end deffn"), |
1489 | 300 |
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301 pair_type ("end_unwind_protect", |
5818 | 302 "-*- texinfo -*-\n\ |
303 @deffn Keyword end_unwind_protect\n\ | |
304 Mark the end of an unwind_protect block.\n\ | |
305 @seealso{unwind_protect}\n\ | |
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306 @end deffn"), |
1 | 307 |
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308 pair_type ("endfor", |
5818 | 309 "-*- texinfo -*-\n\ |
310 @deffn Keyword endfor\n\ | |
311 Mark the end of a for loop. See @code{for} for an example.\n\ | |
312 @seealso{for}\n\ | |
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313 @end deffn"), |
1 | 314 |
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315 pair_type ("endfunction", |
5818 | 316 "-*- texinfo -*-\n\ |
317 @deffn Keyword endfunction\n\ | |
318 Mark the end of a function.\n\ | |
319 @seealso{function}\n\ | |
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320 @end deffn"), |
1 | 321 |
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322 pair_type ("endif", |
5818 | 323 "-*- texinfo -*-\n\ |
324 @deffn Keyword endif\n\ | |
325 Mark the end of an if block. See @code{if} for an example.\n\ | |
326 @seealso{if}\n\ | |
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327 @end deffn"), |
1 | 328 |
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329 pair_type ("endswitch", |
5818 | 330 "-*- texinfo -*-\n\ |
331 @deffn Keyword endswitch\n\ | |
332 Mark the end of a switch block. See @code{switch} for an example.\n\ | |
333 @seealso{switch}\n\ | |
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334 @end deffn"), |
5122 | 335 |
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336 pair_type ("endwhile", |
5818 | 337 "-*- texinfo -*-\n\ |
338 @deffn Keyword endwhile\n\ | |
339 Mark the end of a while loop. See @code{while} for an example.\n\ | |
340 @seealso{do, while}\n\ | |
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341 @end deffn"), |
1 | 342 |
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343 pair_type ("for", |
5818 | 344 "-*- texinfo -*-\n\ |
345 @deffn Keyword for @var{i} = @var{range}\n\ | |
346 Begin a for loop.\n\ | |
10840 | 347 \n\ |
5818 | 348 @example\n\ |
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349 @group\n\ |
5818 | 350 for i = 1:10\n\ |
351 i\n\ | |
352 endfor\n\ | |
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353 @end group\n\ |
5818 | 354 @end example\n\ |
355 @seealso{do, while}\n\ | |
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356 @end deffn"), |
1 | 357 |
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358 pair_type ("function", |
5818 | 359 "-*- texinfo -*-\n\ |
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360 @deffn Keyword function @var{outputs} = function (@var{input}, @dots{})\n\ |
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361 @deffnx Keyword function {} function (@var{input}, @dots{})\n\ |
5818 | 362 @deffnx Keyword function @var{outputs} = function\n\ |
363 Begin a function body with @var{outputs} as results and @var{inputs} as\n\ | |
364 parameters.\n\ | |
365 @seealso{return}\n\ | |
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366 @end deffn"), |
1 | 367 |
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368 pair_type ("global", |
5818 | 369 "-*- texinfo -*-\n\ |
370 @deffn Keyword global\n\ | |
371 Declare variables to have global scope.\n\ | |
10840 | 372 \n\ |
5818 | 373 @example\n\ |
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374 @group\n\ |
5818 | 375 global @var{x};\n\ |
376 if isempty (@var{x})\n\ | |
377 x = 1;\n\ | |
378 endif\n\ | |
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379 @end group\n\ |
5818 | 380 @end example\n\ |
381 @seealso{persistent}\n\ | |
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382 @end deffn"), |
1 | 383 |
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384 pair_type ("if", |
5393 | 385 "-*- texinfo -*-\n\ |
386 @deffn Keyword if (@var{cond}) @dots{} endif\n\ | |
387 @deffnx Keyword if (@var{cond}) @dots{} else @dots{} endif\n\ | |
388 @deffnx Keyword if (@var{cond}) @dots{} elseif (@var{cond}) @dots{} endif\n\ | |
389 @deffnx Keyword if (@var{cond}) @dots{} elseif (@var{cond}) @dots{} else @dots{} endif\n\ | |
390 Begin an if block.\n\ | |
10840 | 391 \n\ |
5818 | 392 @example\n\ |
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393 @group\n\ |
5818 | 394 x = 1;\n\ |
395 if (x == 1)\n\ | |
396 disp (\"one\");\n\ | |
397 elseif (x == 2)\n\ | |
398 disp (\"two\");\n\ | |
399 else\n\ | |
400 disp (\"not one or two\");\n\ | |
401 endif\n\ | |
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402 @end group\n\ |
5818 | 403 @end example\n\ |
5646 | 404 @seealso{switch}\n\ |
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405 @end deffn"), |
1 | 406 |
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407 pair_type ("otherwise", |
5818 | 408 "-*- texinfo -*-\n\ |
409 @deffn Keyword otherwise\n\ | |
410 The default statement in a switch block (similar to else in an if block).\n\ | |
411 @seealso{switch}\n\ | |
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412 @end deffn"), |
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414 pair_type ("persistent", |
5818 | 415 "-*- texinfo -*-\n\ |
416 @deffn Keyword persistent @var{var}\n\ | |
417 Declare variables as persistent. A variable that has been declared\n\ | |
5623 | 418 persistent within a function will retain its contents in memory between\n\ |
419 subsequent calls to the same function. The difference between persistent\n\ | |
5818 | 420 variables and global variables is that persistent variables are local in \n\ |
421 scope to a particular function and are not visible elsewhere.\n\ | |
422 @seealso{global}\n\ | |
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423 @end deffn"), |
4686 | 424 |
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425 pair_type ("replot", |
5818 | 426 "-*- texinfo -*-\n\ |
427 @deffn Keyword replot\n\ | |
428 Replot a graphic.\n\ | |
429 @seealso{plot}\n\ | |
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430 @end deffn"), |
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432 pair_type ("return", |
5818 | 433 "-*- texinfo -*-\n\ |
434 @deffn Keyword return\n\ | |
435 Return from a function.\n\ | |
436 @seealso{function}\n\ | |
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437 @end deffn"), |
928 | 438 |
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439 pair_type ("static", |
5818 | 440 "-*- texinfo -*-\n\ |
441 @deffn Keyword static\n\ | |
442 This function has been deprecated in favor of persistent.\n\ | |
443 @seealso{persistent}\n\ | |
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444 @end deffn"), |
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446 pair_type ("switch", |
5818 | 447 "-*- texinfo -*-\n\ |
448 @deffn Keyword switch @var{statement}\n\ | |
449 Begin a switch block.\n\ | |
10840 | 450 \n\ |
5818 | 451 @example\n\ |
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452 @group\n\ |
5818 | 453 yesno = \"yes\"\n\ |
454 \n\ | |
455 switch yesno\n\ | |
5832 | 456 case @{\"Yes\" \"yes\" \"YES\" \"y\" \"Y\"@}\n\ |
5818 | 457 value = 1;\n\ |
5832 | 458 case @{\"No\" \"no\" \"NO\" \"n\" \"N\"@}\n\ |
5818 | 459 value = 0;\n\ |
460 otherwise\n\ | |
461 error (\"invalid value\");\n\ | |
462 endswitch\n\ | |
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463 @end group\n\ |
5818 | 464 @end example\n\ |
465 @seealso{if, case, otherwise}\n\ | |
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466 @end deffn"), |
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468 pair_type ("try", |
5818 | 469 "-*- texinfo -*-\n\ |
470 @deffn Keyword try\n\ | |
471 Begin a try-catch block.\n\ | |
6138 | 472 \n\ |
473 If an error occurs within a try block, then the catch code will be run and\n\ | |
474 execution will proceed after the catch block (though it is often\n\ | |
475 recommended to use the lasterr function to re-throw the error after cleanup\n\ | |
476 is completed).\n\ | |
477 @seealso{catch,unwind_protect}\n\ | |
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478 @end deffn"), |
1489 | 479 |
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480 pair_type ("until", |
5818 | 481 "-*- texinfo -*-\n\ |
482 @deffn Keyword until\n\ | |
483 End a do-until loop.\n\ | |
484 @seealso{do}\n\ | |
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485 @end deffn"), |
5040 | 486 |
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487 pair_type ("unwind_protect", |
5818 | 488 "-*- texinfo -*-\n\ |
489 @deffn Keyword unwind_protect\n\ | |
490 Begin an unwind_protect block.\n\ | |
6138 | 491 \n\ |
492 If an error occurs within the first part of an unwind_protect block\n\ | |
493 the commands within the unwind_protect_cleanup block are executed before\n\ | |
494 the error is thrown. If an error is not thrown, then the\n\ | |
495 unwind_protect_cleanup block is still executed (in other words, the\n\ | |
496 unwind_protect_cleanup will be run with or without an error in the\n\ | |
497 unwind_protect block).\n\ | |
498 @seealso{unwind_protect_cleanup,try}\n\ | |
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499 @end deffn"), |
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501 pair_type ("unwind_protect_cleanup", |
5818 | 502 "-*- texinfo -*-\n\ |
503 @deffn Keyword unwind_protect_cleanup\n\ | |
504 Begin the cleanup section of an unwind_protect block.\n\ | |
505 @seealso{unwind_protect}\n\ | |
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506 @end deffn"), |
1 | 507 |
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508 pair_type ("varargin", |
5818 | 509 "-*- texinfo -*-\n\ |
510 @deffn Keyword varargin\n\ | |
511 Pass an arbitrary number of arguments into a function.\n\ | |
512 @seealso{varargout, nargin, nargout}\n\ | |
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513 @end deffn"), |
5040 | 514 |
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515 pair_type ("varargout", |
5818 | 516 "-*- texinfo -*-\n\ |
517 @deffn Keyword varargout\n\ | |
518 Pass an arbitrary number of arguments out of a function.\n\ | |
519 @seealso{varargin, nargin, nargout}\n\ | |
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520 @end deffn"), |
5040 | 521 |
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522 pair_type ("while", |
5818 | 523 "-*- texinfo -*-\n\ |
524 @deffn Keyword while\n\ | |
525 Begin a while loop.\n\ | |
526 @seealso{do}\n\ | |
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527 @end deffn"), |
1 | 528 }; |
529 | |
581 | 530 // Return a copy of the operator or keyword names. |
3016 | 531 static string_vector |
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532 names (const map_type& lst) |
1 | 533 { |
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534 string_vector retval (lst.size ()); |
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535 int j = 0; |
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536 for (map_iter iter = lst.begin (); iter != lst.end (); iter ++) |
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537 retval [j++] = iter->first; |
1755 | 538 return retval; |
1 | 539 } |
540 | |
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541 const static map_type operators_map (operators, operators + size (operators)); |
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542 const static map_type keywords_map (keywords, keywords + size (keywords)); |
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543 const static string_vector keyword_names = names (keywords_map); |
1 | 544 |
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545 // FIXME -- It's not likely that this does the right thing now. |
3016 | 546 |
547 string_vector | |
548 make_name_list (void) | |
549 { | |
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550 const int key_len = keyword_names.length (); |
3016 | 551 |
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552 const string_vector bif = symbol_table::built_in_function_names (); |
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553 const int bif_len = bif.length (); |
4009 | 554 |
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555 const string_vector lcl = symbol_table::variable_names (); |
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556 const int lcl_len = lcl.length (); |
3016 | 557 |
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558 const string_vector ffl = load_path::fcn_names (); |
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559 const int ffl_len = ffl.length (); |
3016 | 560 |
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561 const string_vector afl = autoloaded_functions (); |
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562 const int afl_len = afl.length (); |
5592 | 563 |
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564 const int total_len = key_len + bif_len + lcl_len + ffl_len + afl_len; |
3016 | 565 |
566 string_vector list (total_len); | |
567 | |
568 // Put all the symbols in one big list. | |
569 | |
570 int j = 0; | |
571 int i = 0; | |
572 for (i = 0; i < key_len; i++) | |
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573 list[j++] = keyword_names[i]; |
3016 | 574 |
7336 | 575 for (i = 0; i < bif_len; i++) |
576 list[j++] = bif[i]; | |
4009 | 577 |
3016 | 578 for (i = 0; i < lcl_len; i++) |
579 list[j++] = lcl[i]; | |
580 | |
581 for (i = 0; i < ffl_len; i++) | |
582 list[j++] = ffl[i]; | |
583 | |
5592 | 584 for (i = 0; i < afl_len; i++) |
585 list[j++] = afl[i]; | |
586 | |
3016 | 587 return list; |
588 } | |
589 | |
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590 static bool |
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591 looks_like_html (const std::string& msg) |
3014 | 592 { |
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593 const size_t p1 = msg.find ('\n'); |
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594 std::string t = msg.substr (0, p1); |
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595 const size_t p2 = t.find ("<html"); // FIXME: this comparison should be case-insensitive |
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596 |
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597 return (p2 != std::string::npos); |
2470 | 598 } |
3014 | 599 |
600 static bool | |
3523 | 601 looks_like_texinfo (const std::string& msg, size_t& p1) |
3295 | 602 { |
603 p1 = msg.find ('\n'); | |
604 | |
3523 | 605 std::string t = msg.substr (0, p1); |
3295 | 606 |
8021 | 607 if (p1 == std::string::npos) |
3295 | 608 p1 = 0; |
609 | |
610 size_t p2 = t.find ("-*- texinfo -*-"); | |
611 | |
8021 | 612 return (p2 != std::string::npos); |
3295 | 613 } |
614 | |
3355 | 615 static bool |
6243 | 616 raw_help_from_symbol_table (const std::string& nm, std::string& h, |
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617 std::string& w, bool& symbol_found) |
3355 | 618 { |
619 bool retval = false; | |
620 | |
7336 | 621 octave_value val = symbol_table::find_function (nm); |
3355 | 622 |
7336 | 623 if (val.is_defined ()) |
3355 | 624 { |
7336 | 625 octave_function *fcn = val.function_value (); |
626 | |
627 if (fcn) | |
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628 { |
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629 symbol_found = true; |
5399 | 630 |
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631 h = fcn->doc_string (); |
7336 | 632 |
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633 retval = true; |
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634 |
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635 w = fcn->fcn_file_name (); |
6243 | 636 |
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637 if (w.empty ()) |
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638 w = fcn->is_user_function () |
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639 ? "command-line function" : "built-in function"; |
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640 } |
6243 | 641 } |
3355 | 642 |
6243 | 643 return retval; |
644 } | |
645 | |
646 static bool | |
647 raw_help_from_file (const std::string& nm, std::string& h, | |
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648 std::string& file, bool& symbol_found) |
6243 | 649 { |
650 bool retval = false; | |
651 | |
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652 // FIXME -- this is a bit of a kluge... |
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653 unwind_protect frame; |
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654 frame.protect_var (reading_script_file); |
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655 reading_script_file = true; |
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656 |
6243 | 657 h = get_help_from_file (nm, symbol_found, file); |
658 | |
659 if (h.length () > 0) | |
660 retval = true; | |
661 | |
662 return retval; | |
663 } | |
664 | |
665 static bool | |
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666 raw_help_from_map (const std::string& nm, std::string& h, |
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667 const map_type& map, bool& symbol_found) |
3355 | 668 { |
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669 map_iter idx = map.find (nm); |
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670 symbol_found = (idx != map.end ()); |
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671 h = (symbol_found) ? idx->second : ""; |
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672 return symbol_found; |
3355 | 673 } |
674 | |
6243 | 675 std::string |
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676 raw_help (const std::string& nm, bool& symbol_found) |
6243 | 677 { |
678 std::string h; | |
679 std::string w; | |
680 std::string f; | |
681 | |
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682 (raw_help_from_symbol_table (nm, h, w, symbol_found) |
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683 || raw_help_from_file (nm, h, f, symbol_found) |
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684 || raw_help_from_map (nm, h, operators_map, symbol_found) |
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685 || raw_help_from_map (nm, h, keywords_map, symbol_found)); |
6243 | 686 |
687 return h; | |
688 } | |
689 | |
1140 | 690 static void |
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691 do_get_help_text (const std::string& name, std::string& text, |
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692 std::string& format) |
1140 | 693 { |
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694 bool symbol_found = false; |
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695 text = raw_help (name, symbol_found); |
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696 |
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697 format = "Not found"; |
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698 if (symbol_found) |
1140 | 699 { |
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700 size_t idx = -1; |
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701 if (text.empty ()) |
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702 { |
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703 format = "Not documented"; |
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704 } |
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705 else if (looks_like_texinfo (text, idx)) |
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706 { |
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707 format = "texinfo"; |
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708 text.erase (0, idx); |
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709 } |
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710 else if (looks_like_html (text)) |
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711 { |
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712 format = "html"; |
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713 } |
5399 | 714 else |
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715 { |
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716 format = "plain text"; |
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717 } |
1140 | 718 } |
719 } | |
720 | |
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721 DEFUN (get_help_text, args, , "-*- texinfo -*-\n\ |
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722 @deftypefn {Loadable Function} {[@var{text}, @var{format}] =} get_help_text (@var{name})\n\ |
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723 Returns the help text of a given function.\n\ |
3168 | 724 \n\ |
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725 This function returns the raw help text @var{text} and an indication of\n\ |
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726 its format for the function @var{name}. The format indication @var{format}\n\ |
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727 is a string that can be either @t{\"texinfo\"}, @t{\"html\"}, or\n\ |
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728 @t{\"plain text\"}.\n\ |
3332 | 729 \n\ |
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730 To convert the help text to other formats, use the @code{makeinfo} function.\n\ |
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731 \n\ |
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732 @seealso{makeinfo}\n\ |
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733 @end deftypefn") |
529 | 734 { |
2086 | 735 octave_value_list retval; |
529 | 736 |
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737 if (args.length () == 1) |
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738 { |
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739 const std::string name = args (0).string_value (); |
1755 | 740 |
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741 if (! error_state) |
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742 { |
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743 std::string text; |
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744 std::string format; |
529 | 745 |
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746 do_get_help_text (name, text, format); |
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747 |
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748 retval(1) = format; |
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749 retval(0) = text; |
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750 } |
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751 else |
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752 error ("get_help_text: invalid input"); |
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753 } |
529 | 754 else |
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755 print_usage (); |
529 | 756 |
757 return retval; | |
758 } | |
759 | |
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760 static void |
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761 do_get_help_text_from_file (const std::string& fname, std::string& text, |
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762 std::string& format) |
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763 { |
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764 bool symbol_found = false; |
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765 |
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766 std::string f; |
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767 |
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768 raw_help_from_file (fname, text, f, symbol_found); |
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|
769 |
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770 format = "Not found"; |
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771 if (symbol_found) |
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772 { |
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773 size_t idx = -1; |
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774 if (text.empty ()) |
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775 { |
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776 format = "Not documented"; |
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777 } |
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778 else if (looks_like_texinfo (text, idx)) |
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779 { |
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|
780 format = "texinfo"; |
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781 text.erase (0, idx); |
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782 } |
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783 else if (looks_like_html (text)) |
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|
784 { |
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|
785 format = "html"; |
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|
786 } |
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|
787 else |
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|
788 { |
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789 format = "plain text"; |
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790 } |
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|
791 } |
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|
792 } |
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|
793 |
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794 DEFUN (get_help_text_from_file, args, , |
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795 "-*- texinfo -*-\n\ |
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796 @deftypefn {Loadable Function} {[@var{text}, @var{format}] =} get_help_text_from_file (@var{fname})\n\ |
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797 Returns the help text from the given file.\n\ |
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798 \n\ |
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799 This function returns the raw help text @var{text} and an indication of\n\ |
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800 its format for the function @var{name}. The format indication @var{format}\n\ |
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801 is a string that can be either @t{\"texinfo\"}, @t{\"html\"}, or\n\ |
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802 @t{\"plain text\"}.\n\ |
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803 \n\ |
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804 To convert the help text to other formats, use the @code{makeinfo} function.\n\ |
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805 \n\ |
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806 @seealso{makeinfo}\n\ |
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807 @end deftypefn") |
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808 { |
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809 octave_value_list retval; |
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810 |
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811 if (args.length () == 1) |
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812 { |
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813 const std::string fname = args(0).string_value (); |
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814 |
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815 if (! error_state) |
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816 { |
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|
817 std::string text; |
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|
818 std::string format; |
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819 |
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820 do_get_help_text_from_file (fname, text, format); |
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821 |
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822 retval(1) = format; |
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823 retval(0) = text; |
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824 } |
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825 else |
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|
826 error ("get_help_text_from_file: invalid input"); |
9806
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|
827 } |
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|
828 else |
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|
829 print_usage (); |
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|
830 |
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831 return retval; |
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|
832 } |
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|
833 |
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834 // Return a cell array of strings containing the names of all |
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835 // operators. |
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836 |
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837 DEFUN (__operators__, , , |
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838 "-*- texinfo -*-\n\ |
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839 @deftypefn {Function File} __operators__ ()\n\ |
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840 Undocumented internal function.\n\ |
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841 @end deftypefn") |
3355 | 842 { |
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843 return octave_value (Cell (names (operators_map))); |
3355 | 844 } |
845 | |
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846 // Return a cell array of strings containing the names of all |
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847 // keywords. |
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|
848 |
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|
849 DEFUN (__keywords__, , , |
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850 "-*- texinfo -*-\n\ |
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851 @deftypefn {Function File} __keywords__ ()\n\ |
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852 Undocumented internal function.\n\ |
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853 @end deftypefn") |
581 | 854 { |
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855 return octave_value (Cell (names (keywords_map))); |
581 | 856 } |
857 | |
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858 // Return a cell array of strings containing the names of all builtin |
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|
859 // functions. |
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|
860 |
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|
861 DEFUN (__builtins__, , , |
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862 "-*- texinfo -*-\n\ |
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863 @deftypefn {Function File} __builtins__ ()\n\ |
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864 Undocumented internal function.\n\ |
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865 @end deftypefn") |
3355 | 866 { |
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867 const string_vector bif = symbol_table::built_in_function_names (); |
3355 | 868 |
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869 return octave_value (Cell (bif)); |
3355 | 870 } |
871 | |
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|
872 static std::string |
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changeset
|
873 do_which (const std::string& name, std::string& type) |
3355 | 874 { |
8575
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
875 std::string file; |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
876 |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
877 type = std::string (); |
3355 | 878 |
7336 | 879 octave_value val = symbol_table::find_function (name); |
880 | |
9416
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
881 if (name.find_first_of ('.') == std::string::npos) |
3355 | 882 { |
9416
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
883 if (val.is_defined ()) |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
884 { |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
885 octave_function *fcn = val.function_value (); |
7336 | 886 |
9416
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
887 if (fcn) |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
888 { |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
889 file = fcn->fcn_file_name (); |
3355 | 890 |
9416
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
891 if (file.empty ()) |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
892 { |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
893 if (fcn->is_user_function ()) |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
894 type = "command-line function"; |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
895 else |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
896 type = "built-in function"; |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
897 } |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
898 else |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
899 type = val.is_user_script () |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
900 ? std::string ("script") : std::string ("function"); |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
901 } |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
902 } |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
903 else |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
904 { |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
905 // We might find a file that contains only a doc string. |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
906 |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
907 file = load_path::find_fcn_file (name); |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
908 } |
7336 | 909 } |
8672
2a49c32d4322
allow help to work with files containing only comments
John W. Eaton <jwe@octave.org>
parents:
8631
diff
changeset
|
910 else |
2a49c32d4322
allow help to work with files containing only comments
John W. Eaton <jwe@octave.org>
parents:
8631
diff
changeset
|
911 { |
9416
2cc47338e427
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Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
912 // File query. |
8672
2a49c32d4322
allow help to work with files containing only comments
John W. Eaton <jwe@octave.org>
parents:
8631
diff
changeset
|
913 |
9416
2cc47338e427
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Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
914 // For compatibility: "file." queries "file". |
2cc47338e427
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Jaroslav Hajek <highegg@gmail.com>
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9377
diff
changeset
|
915 if (name.size () > 1 && name[name.size () - 1] == '.') |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
916 file = load_path::find_file (name.substr (0, name.size () - 1)); |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
917 else |
2cc47338e427
allow which look for files on path
Jaroslav Hajek <highegg@gmail.com>
parents:
9377
diff
changeset
|
918 file = load_path::find_file (name); |
8672
2a49c32d4322
allow help to work with files containing only comments
John W. Eaton <jwe@octave.org>
parents:
8631
diff
changeset
|
919 } |
8575
f134925a1cfa
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Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
920 |
9416
2cc47338e427
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parents:
9377
diff
changeset
|
921 |
8575
f134925a1cfa
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parents:
8503
diff
changeset
|
922 return file; |
3355 | 923 } |
924 | |
8575
f134925a1cfa
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Soren Hauberg <soren@hauberg.org>
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diff
changeset
|
925 std::string |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
926 do_which (const std::string& name) |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
927 { |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
928 std::string retval; |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
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diff
changeset
|
929 |
f134925a1cfa
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parents:
8503
diff
changeset
|
930 std::string type; |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
931 |
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
932 retval = do_which (name, type); |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
933 |
f134925a1cfa
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Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
934 return retval; |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
935 } |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
936 |
f134925a1cfa
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Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
937 DEFUN (__which__, args, , |
3361 | 938 "-*- texinfo -*-\n\ |
8575
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
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8503
diff
changeset
|
939 @deftypefn {Built-in Function} {} __which__ (@var{name}, @dots{})\n\ |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
940 Undocumented internal function.\n\ |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
941 @end deftypefn") |
581 | 942 { |
8575
f134925a1cfa
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8503
diff
changeset
|
943 octave_value retval; |
581 | 944 |
1968 | 945 string_vector argv = args.make_argv ("which"); |
1755 | 946 |
3355 | 947 if (! error_state) |
948 { | |
949 int argc = argv.length (); | |
581 | 950 |
3355 | 951 if (argc > 1) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
952 { |
11059
4ffa19147604
replace Octave_map->octave_scalar_map in help.cc and load-save.cc
Jaroslav Hajek <highegg@gmail.com>
parents:
10840
diff
changeset
|
953 octave_map m (dim_vector (1, argc-1)); |
8575
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
954 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
955 Cell names (1, argc-1); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
956 Cell files (1, argc-1); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
957 Cell types (1, argc-1); |
8575
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
958 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
959 for (int i = 1; i < argc; i++) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
960 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
961 std::string name = argv[i]; |
8575
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
962 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
963 std::string type; |
8575
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
964 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
965 std::string file = do_which (name, type); |
3141 | 966 |
10315
57a59eae83cc
untabify src C++ source files
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parents:
10182
diff
changeset
|
967 names(i-1) = name; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
968 files(i-1) = file; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
969 types(i-1) = type; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
970 } |
8575
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
971 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
972 m.assign ("name", names); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
973 m.assign ("file", files); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
974 m.assign ("type", types); |
8575
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
975 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
976 retval = m; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
977 } |
3355 | 978 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10182
diff
changeset
|
979 print_usage (); |
581 | 980 } |
981 | |
982 return retval; | |
983 } | |
984 | |
8575
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
985 // FIXME -- Are we sure this function always does the right thing? |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
986 inline bool |
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
987 file_is_in_dir (const std::string filename, const std::string dir) |
5447 | 988 { |
8575
f134925a1cfa
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parents:
8503
diff
changeset
|
989 if (filename.find (dir) == 0) |
f134925a1cfa
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parents:
8503
diff
changeset
|
990 { |
f134925a1cfa
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parents:
8503
diff
changeset
|
991 const int dir_len = dir.size (); |
f134925a1cfa
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parents:
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diff
changeset
|
992 const int filename_len = filename.size (); |
f134925a1cfa
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diff
changeset
|
993 const int max_allowed_seps = file_ops::is_dir_sep (dir [dir_len-1]) ? 0 : 1; |
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8503
diff
changeset
|
994 |
f134925a1cfa
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parents:
8503
diff
changeset
|
995 int num_seps = 0; |
f134925a1cfa
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8503
diff
changeset
|
996 for (int i = dir_len; i < filename_len; i++) |
f134925a1cfa
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diff
changeset
|
997 if (file_ops::is_dir_sep (filename [i])) |
f134925a1cfa
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8503
diff
changeset
|
998 num_seps ++; |
f134925a1cfa
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parents:
8503
diff
changeset
|
999 |
f134925a1cfa
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parents:
8503
diff
changeset
|
1000 return (num_seps <= max_allowed_seps); |
f134925a1cfa
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parents:
8503
diff
changeset
|
1001 } |
f134925a1cfa
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diff
changeset
|
1002 else |
f134925a1cfa
m-file implementation of help system
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parents:
8503
diff
changeset
|
1003 return false; |
f134925a1cfa
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parents:
8503
diff
changeset
|
1004 } |
5447 | 1005 |
8812
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8672
diff
changeset
|
1006 // Return a cell array of strings containing the names of all |
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8672
diff
changeset
|
1007 // functions available in DIRECTORY. If no directory is given, search |
7d48766c21a5
use consistent format for doc strings of internal functions
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8672
diff
changeset
|
1008 // the current path. |
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8672
diff
changeset
|
1009 |
7d48766c21a5
use consistent format for doc strings of internal functions
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8672
diff
changeset
|
1010 DEFUN (__list_functions__, args, , |
7d48766c21a5
use consistent format for doc strings of internal functions
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8672
diff
changeset
|
1011 "-*- texinfo -*-\n\ |
10840 | 1012 @deftypefn {Function File} {@var{retval} =} __list_functions__ ()\n\ |
1013 @deftypefnx {Function File} {@var{retval} =} __list_functions__ (@var{directory})\n\ | |
8812
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
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8672
diff
changeset
|
1014 Undocumented internal function.\n\ |
7d48766c21a5
use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
parents:
8672
diff
changeset
|
1015 @end deftypefn") |
8575
f134925a1cfa
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8503
diff
changeset
|
1016 { |
8863
34a821854961
pkg.m (generate_lookfor_cache): generate a DOC file for each directory
Jason Riedy <jason@acm.org>
parents:
8861
diff
changeset
|
1017 octave_value retval; |
5447 | 1018 |
8575
f134925a1cfa
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diff
changeset
|
1019 // Get list of functions |
8863
34a821854961
pkg.m (generate_lookfor_cache): generate a DOC file for each directory
Jason Riedy <jason@acm.org>
parents:
8861
diff
changeset
|
1020 string_vector ffl = load_path::fcn_names (); |
34a821854961
pkg.m (generate_lookfor_cache): generate a DOC file for each directory
Jason Riedy <jason@acm.org>
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8861
diff
changeset
|
1021 string_vector afl = autoloaded_functions (); |
8575
f134925a1cfa
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changeset
|
1022 |
f134925a1cfa
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8503
diff
changeset
|
1023 if (args.length () == 0) |
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1024 retval = Cell (ffl.append (afl)); |
5447 | 1025 else |
1026 { | |
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1027 std::string dir = args (0).string_value (); |
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1028 |
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1029 if (! error_state) |
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1030 { |
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1031 string_vector fl = load_path::files (dir, true); |
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1032 |
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1033 if (! error_state) |
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1034 { |
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1035 // Return a sorted list with unique entries (in case of |
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1036 // .m and .oct versions of the same function in a given |
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1037 // directory, for example). |
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1038 fl.sort (true); |
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1039 |
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1040 retval = Cell (fl); |
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1041 } |
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1042 } |
5447 | 1043 else |
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1044 error ("__list_functions__: input must be a string"); |
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1045 } |
5447 | 1046 |
1047 return retval; | |
1048 } | |
1049 | |
8861 | 1050 DEFUN (doc_cache_file, args, nargout, |
1051 "-*- texinfo -*-\n\ | |
10840 | 1052 @deftypefn {Built-in Function} {@var{val} =} doc_cache_file ()\n\ |
8861 | 1053 @deftypefnx {Built-in Function} {@var{old_val} =} doc_cache_file (@var{new_val})\n\ |
1054 Query or set the internal variable that specifies the name of the\n\ | |
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1055 Octave documentation cache file. A cache file significantly improves\n\ |
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1056 the performance of the @code{lookfor} command. The default value is \n\ |
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1057 @file{@var{octave-home}/share/octave/@var{version}/etc/doc-cache},\n\ |
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1058 in which @var{octave-home} is the root directory of the Octave installation,\n\ |
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1059 and @var{version} is the Octave version number.\n\ |
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1060 The default value may be overridden by the environment variable\n\ |
10840 | 1061 @w{@env{OCTAVE_DOC_CACHE_FILE}}, or the command line argument\n\ |
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1062 @samp{--doc-cache-file NAME}.\n\ |
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1063 @seealso{lookfor, info_program, doc, help, makeinfo_program}\n\ |
8861 | 1064 @end deftypefn") |
1065 { | |
1066 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (doc_cache_file); | |
1067 } | |
1068 | |
5794 | 1069 DEFUN (info_file, args, nargout, |
1070 "-*- texinfo -*-\n\ | |
10840 | 1071 @deftypefn {Built-in Function} {@var{val} =} info_file ()\n\ |
5794 | 1072 @deftypefnx {Built-in Function} {@var{old_val} =} info_file (@var{new_val})\n\ |
1073 Query or set the internal variable that specifies the name of the\n\ | |
1074 Octave info file. The default value is\n\ | |
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1075 @file{@var{octave-home}/info/octave.info}, in\n\ |
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1076 which @var{octave-home} is the root directory of the Octave installation.\n\ |
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1077 The default value may be overridden by the environment variable\n\ |
10840 | 1078 @w{@env{OCTAVE_INFO_FILE}}, or the command line argument\n\ |
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1079 @samp{--info-file NAME}.\n\ |
5794 | 1080 @seealso{info_program, doc, help, makeinfo_program}\n\ |
1081 @end deftypefn") | |
2202 | 1082 { |
5794 | 1083 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (info_file); |
2202 | 1084 } |
1085 | |
5794 | 1086 DEFUN (info_program, args, nargout, |
1087 "-*- texinfo -*-\n\ | |
10840 | 1088 @deftypefn {Built-in Function} {@var{val} =} info_program ()\n\ |
5794 | 1089 @deftypefnx {Built-in Function} {@var{old_val} =} info_program (@var{new_val})\n\ |
1090 Query or set the internal variable that specifies the name of the\n\ | |
7096 | 1091 info program to run. The default value is\n\ |
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1092 @file{@var{octave-home}/libexec/octave/@var{version}/exec/@var{arch}/info}\n\ |
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1093 in which @var{octave-home} is the root directory of the Octave installation,\n\ |
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1094 @var{version} is the Octave version number, and @var{arch}\n\ |
3686 | 1095 is the system type (for example, @code{i686-pc-linux-gnu}). The\n\ |
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1096 default value may be overridden by the environment variable\n\ |
10840 | 1097 @w{@env{OCTAVE_INFO_PROGRAM}}, or the command line argument\n\ |
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1098 @samp{--info-program NAME}.\n\ |
5794 | 1099 @seealso{info_file, doc, help, makeinfo_program}\n\ |
1100 @end deftypefn") | |
1101 { | |
1102 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (info_program); | |
1103 } | |
3686 | 1104 |
5794 | 1105 DEFUN (makeinfo_program, args, nargout, |
1106 "-*- texinfo -*-\n\ | |
10840 | 1107 @deftypefn {Built-in Function} {@var{val} =} makeinfo_program ()\n\ |
5794 | 1108 @deftypefnx {Built-in Function} {@var{old_val} =} makeinfo_program (@var{new_val})\n\ |
1109 Query or set the internal variable that specifies the name of the\n\ | |
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1110 program that Octave runs to format help text containing\n\ |
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1111 Texinfo markup commands. The default value is @code{makeinfo}.\n\ |
5794 | 1112 @seealso{info_file, info_program, doc, help}\n\ |
1113 @end deftypefn") | |
1114 { | |
1115 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (makeinfo_program); | |
1116 } | |
2202 | 1117 |
5794 | 1118 DEFUN (suppress_verbose_help_message, args, nargout, |
1119 "-*- texinfo -*-\n\ | |
10840 | 1120 @deftypefn {Built-in Function} {@var{val} =} suppress_verbose_help_message ()\n\ |
5794 | 1121 @deftypefnx {Built-in Function} {@var{old_val} =} suppress_verbose_help_message (@var{new_val})\n\ |
7001 | 1122 Query or set the internal variable that controls whether Octave\n\ |
5794 | 1123 will add additional help information to the end of the output from\n\ |
3332 | 1124 the @code{help} command and usage messages for built-in commands.\n\ |
5794 | 1125 @end deftypefn") |
1126 { | |
1127 return SET_INTERNAL_VARIABLE (suppress_verbose_help_message); | |
2189 | 1128 } |