Mercurial > octave-nkf
annotate src/help.cc @ 15005:74c7265c057a
fix failure with function handles caused by changeset ea6997657614
* ov-fcn-handle.cc (octave_fcn_handle::set_fcn): Undo previous change.
* ov-fcn.h (octave_function::src_file_name): New virtual function.
* ov-builtin.h (octave_builtin::src_file_name): Rename from
octave_builtin::fcn_file_name.
* help.cc (do_which): Return source file name for built-in functions.
| author | John W. Eaton <jwe@octave.org> |
|---|---|
| date | Mon, 23 Jul 2012 15:23:41 -0400 |
| parents | 877263efaacc |
| children | 560317fd5977 |
| rev | line source |
|---|---|
| 1 | 1 /* |
| 2 | |
|
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3 Copyright (C) 1993-2012 John W. Eaton |
| 1 | 4 |
| 5 This file is part of Octave. | |
| 6 | |
| 7 Octave is free software; you can redistribute it and/or modify it | |
| 8 under the terms of the GNU General Public License as published by the | |
| 7016 | 9 Free Software Foundation; either version 3 of the License, or (at your |
| 10 option) any later version. | |
| 1 | 11 |
| 12 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 15 for more details. | |
| 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 |
| 19 <http://www.gnu.org/licenses/>. | |
| 1 | 20 |
| 21 */ | |
| 22 | |
| 240 | 23 #ifdef HAVE_CONFIG_H |
| 1192 | 24 #include <config.h> |
| 1 | 25 #endif |
| 26 | |
| 1343 | 27 #include <cstdlib> |
| 28 #include <cstring> | |
| 29 | |
| 5769 | 30 #include <algorithm> |
| 3503 | 31 #include <iostream> |
| 32 #include <fstream> | |
| 5765 | 33 #include <sstream> |
| 1755 | 34 #include <string> |
| 35 | |
| 1295 | 36 #include <sys/types.h> |
| 37 #include <unistd.h> | |
| 1343 | 38 |
| 3295 | 39 #include "cmd-edit.h" |
| 40 #include "file-ops.h" | |
| 6253 | 41 #include "file-stat.h" |
| 2926 | 42 #include "oct-env.h" |
| 1755 | 43 #include "str-vec.h" |
| 44 | |
| 2492 | 45 #include <defaults.h> |
| 1352 | 46 #include "defun.h" |
| 47 #include "dirfns.h" | |
| 48 #include "error.h" | |
| 2202 | 49 #include "gripes.h" |
| 1352 | 50 #include "help.h" |
| 2177 | 51 #include "input.h" |
| 5832 | 52 #include "load-path.h" |
| 1755 | 53 #include "oct-obj.h" |
| 2976 | 54 #include "ov-usr-fcn.h" |
| 1352 | 55 #include "pager.h" |
| 3018 | 56 #include "parse.h" |
| 1466 | 57 #include "pathsearch.h" |
| 3295 | 58 #include "procstream.h" |
| 7336 | 59 #include "pt-pr-code.h" |
| 529 | 60 #include "sighandlers.h" |
| 61 #include "symtab.h" | |
| 2694 | 62 #include "syswait.h" |
| 1755 | 63 #include "toplev.h" |
|
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64 #include "unwind-prot.h" |
| 242 | 65 #include "utils.h" |
| 1352 | 66 #include "variables.h" |
| 3301 | 67 #include "version.h" |
| 5447 | 68 #include "quit.h" |
| 529 | 69 |
| 8861 | 70 // Name of the doc cache file specified on the command line. |
| 71 // (--doc-cache-file file) | |
| 72 std::string Vdoc_cache_file; | |
| 73 | |
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74 // Name of the file containing local Texinfo macros that are prepended |
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75 // to doc strings before processing. |
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76 // (--texi-macros-file) |
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77 std::string Vtexi_macros_file; |
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78 |
| 2202 | 79 // Name of the info file specified on command line. |
| 80 // (--info-file file) | |
| 3523 | 81 std::string Vinfo_file; |
| 2202 | 82 |
| 83 // Name of the info reader we'd like to use. | |
| 84 // (--info-program program) | |
| 5794 | 85 std::string Vinfo_program; |
| 2202 | 86 |
| 3686 | 87 // Name of the makeinfo program to run. |
| 5794 | 88 static std::string Vmakeinfo_program = "makeinfo"; |
| 3686 | 89 |
| 2189 | 90 // If TRUE, don't print additional help message in help and usage |
| 91 // functions. | |
| 5794 | 92 static bool Vsuppress_verbose_help_message = false; |
| 2189 | 93 |
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94 #include <map> |
| 3016 | 95 |
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96 typedef std::map<std::string, std::string> map_type; |
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97 typedef map_type::value_type pair_type; |
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98 typedef map_type::const_iterator map_iter; |
| 3016 | 99 |
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100 template<typename T, std::size_t z> |
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101 std::size_t |
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102 size (T const (&)[z]) |
| 1 | 103 { |
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104 return z; |
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105 } |
| 1 | 106 |
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107 const static pair_type operators[] = |
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108 { |
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109 pair_type ("!", |
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110 "-*- texinfo -*-\n\ |
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111 @deftypefn {Operator} {} !\n\ |
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112 Logical 'not' operator.\n\ |
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113 @seealso{~, not}\n\ |
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114 @end deftypefn"), |
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115 |
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116 pair_type ("~", |
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117 "-*- texinfo -*-\n\ |
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118 @deftypefn {Operator} {} ~\n\ |
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119 Logical 'not' operator.\n\ |
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120 @seealso{!, not}\n\ |
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121 @end deftypefn"), |
| 1 | 122 |
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123 pair_type ("!=", |
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124 "-*- texinfo -*-\n\ |
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125 @deftypefn {Operator} {} !=\n\ |
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126 Logical 'not equals' operator.\n\ |
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127 @seealso{~=, ne}\n\ |
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128 @end deftypefn"), |
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129 |
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130 pair_type ("~=", |
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131 "-*- texinfo -*-\n\ |
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132 @deftypefn {Operator} {} ~=\n\ |
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133 Logical 'not equals' operator.\n\ |
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134 @seealso{!=, ne}\n\ |
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135 @end deftypefn"), |
| 1 | 136 |
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137 pair_type ("\"", |
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138 "-*- texinfo -*-\n\ |
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139 @deftypefn {Operator} {} \"\n\ |
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140 String delimiter.\n\ |
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141 @end deftypefn"), |
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142 |
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143 pair_type ("#", |
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144 "-*- texinfo -*-\n\ |
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145 @deftypefn {Operator} {} #\n\ |
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146 Begin comment character.\n\ |
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147 @seealso{%, #@\\{}\n\ |
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148 @end deftypefn"), |
| 1 | 149 |
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150 pair_type ("%", |
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151 "-*- texinfo -*-\n\ |
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152 @deftypefn {Operator} {} %\n\ |
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153 Begin comment character.\n\ |
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154 @seealso{#, %@\\{}\n\ |
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155 @end deftypefn"), |
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156 |
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157 pair_type ("#{", |
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158 "-*- texinfo -*-\n\ |
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159 @deftypefn {Operator} {} #@{\n\ |
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160 Begin block comment. There must be nothing else, other than\n\ |
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161 whitespace, in the line both before and after @code{#@{}.\n\ |
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162 It is possible to nest block comments.\n\ |
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163 @seealso{%@\\{, #@\\}, #}\n\ |
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164 @end deftypefn"), |
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165 |
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166 pair_type ("%{", |
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167 "-*- texinfo -*-\n\ |
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168 @deftypefn {Operator} {} %@{\n\ |
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169 Begin block comment. There must be nothing else, other than\n\ |
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170 whitespace, in the line both before and after @code{%@{}.\n\ |
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171 It is possible to nest block comments.\n\ |
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172 @seealso{#@\\{, %@\\}, %}\n\ |
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173 @end deftypefn"), |
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174 |
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175 pair_type ("#}", |
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176 "-*- texinfo -*-\n\ |
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177 @deftypefn {Operator} {} #@}\n\ |
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178 Close block comment. There must be nothing else, other than\n\ |
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179 whitespace, in the line both before and after @code{#@}}.\n\ |
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180 It is possible to nest block comments.\n\ |
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181 @seealso{%@\\}, #@\\{, #}\n\ |
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182 @end deftypefn"), |
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183 |
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184 pair_type ("%}", |
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185 "-*- texinfo -*-\n\ |
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186 @deftypefn {Operator} {} %@}\n\ |
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187 Close block comment. There must be nothing else, other than\n\ |
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188 whitespace, in the line both before and after @code{%@}}.\n\ |
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189 It is possible to nest block comments.\n\ |
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190 @seealso{#@\\}, %@\\{, %}\n\ |
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191 @end deftypefn"), |
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192 |
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193 pair_type ("...", |
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194 "-*- texinfo -*-\n\ |
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195 @deftypefn {Operator} {} ...\n\ |
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196 Continuation marker. Joins current line with following line.\n\ |
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197 @end deftypefn"), |
| 1 | 198 |
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199 pair_type ("&", |
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200 "-*- texinfo -*-\n\ |
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201 @deftypefn {Operator} {} &\n\ |
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202 Element by element logical 'and' operator.\n\ |
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203 @seealso{&&, and}\n\ |
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204 @end deftypefn"), |
| 1 | 205 |
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206 pair_type ("&&", |
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207 "-*- texinfo -*-\n\ |
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208 @deftypefn {Operator} {} &&\n\ |
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209 Logical 'and' operator (with short-circuit evaluation).\n\ |
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210 @seealso{&, and}\n\ |
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211 @end deftypefn"), |
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213 pair_type ("'", |
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214 "-*- texinfo -*-\n\ |
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215 @deftypefn {Operator} {} '\n\ |
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216 Matrix transpose operator. For complex matrices, computes the\n\ |
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217 complex conjugate (Hermitian) transpose.\n\ |
| 1 | 218 \n\ |
| 219 The single quote character may also be used to delimit strings, but\n\ | |
| 220 it is better to use the double quote character, since that is never\n\ | |
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221 ambiguous.\n\ |
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222 @seealso{.', transpose}\n\ |
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223 @end deftypefn"), |
| 1 | 224 |
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225 pair_type ("(", |
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226 "-*- texinfo -*-\n\ |
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227 @deftypefn {Operator} {} (\n\ |
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228 Array index or function argument delimiter.\n\ |
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229 @end deftypefn"), |
| 1 | 230 |
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231 pair_type (")", |
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232 "-*- texinfo -*-\n\ |
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233 @deftypefn {Operator} {} )\n\ |
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234 Array index or function argument delimiter.\n\ |
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235 @end deftypefn"), |
| 1 | 236 |
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237 pair_type ("*", |
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238 "-*- texinfo -*-\n\ |
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239 @deftypefn {Operator} {} *\n\ |
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240 Multiplication operator.\n\ |
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241 @seealso{.*, times}\n\ |
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242 @end deftypefn"), |
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244 pair_type ("**", |
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245 "-*- texinfo -*-\n\ |
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246 @deftypefn {Operator} {} **\n\ |
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247 Power operator. This may return complex results for real inputs. Use\n\ |
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248 @code{realsqrt}, @code{cbrt}, @code{nthroot}, or @code{realroot} to obtain\n\ |
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249 real results when possible.\n\ |
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250 @seealso{power, ^, .**, .^, realpow, realsqrt, cbrt, nthroot}\n\ |
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251 @end deftypefn"), |
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252 |
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253 pair_type ("^", |
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254 "-*- texinfo -*-\n\ |
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255 @deftypefn {Operator} {} ^\n\ |
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256 Power operator. This may return complex results for real inputs. Use\n\ |
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257 @code{realsqrt}, @code{cbrt}, @code{nthroot}, or @code{realroot} to obtain\n\ |
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258 real results when possible.\n\ |
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259 @seealso{power, **, .^, .**, realpow, realsqrt, cbrt, nthroot}\n\ |
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260 @end deftypefn"), |
| 1 | 261 |
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262 pair_type ("+", |
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263 "-*- texinfo -*-\n\ |
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264 @deftypefn {Operator} {} +\n\ |
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265 Addition operator.\n\ |
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266 @seealso{plus}\n\ |
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267 @end deftypefn"), |
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268 |
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269 pair_type ("++", |
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270 "-*- texinfo -*-\n\ |
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271 @deftypefn {Operator} {} ++\n\ |
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272 Increment operator. As in C, may be applied as a prefix or postfix\n\ |
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273 operator.\n\ |
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274 @seealso{--}\n\ |
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275 @end deftypefn"), |
| 1 | 276 |
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277 pair_type (",", |
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278 "-*- texinfo -*-\n\ |
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279 @deftypefn {Operator} {} ,\n\ |
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280 Array index, function argument, or command separator.\n\ |
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281 @end deftypefn"), |
| 1 | 282 |
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283 pair_type ("-", |
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284 "-*- texinfo -*-\n\ |
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285 @deftypefn {Operator} {} -\n\ |
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286 Subtraction or unary negation operator.\n\ |
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287 @seealso{minus}\n\ |
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288 @end deftypefn"), |
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289 |
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290 pair_type ("--", |
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291 "-*- texinfo -*-\n\ |
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292 @deftypefn {Operator} {} --\n\ |
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293 Decrement operator. As in C, may be applied as a prefix or postfix\n\ |
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294 operator.\n\ |
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295 @seealso{++}\n\ |
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296 @end deftypefn"), |
| 1 | 297 |
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298 pair_type (".'", |
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299 "-*- texinfo -*-\n\ |
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300 @deftypefn {Operator} {} .'\n\ |
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301 Matrix transpose operator. For complex matrices, computes the\n\ |
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302 transpose, @emph{not} the complex conjugate transpose.\n\ |
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303 @seealso{', transpose}\n\ |
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304 @end deftypefn"), |
| 1 | 305 |
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306 pair_type (".*", |
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307 "-*- texinfo -*-\n\ |
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308 @deftypefn {Operator} {} .*\n\ |
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309 Element by element multiplication operator.\n\ |
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310 @seealso{*, times}\n\ |
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311 @end deftypefn"), |
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313 pair_type (".**", |
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314 "-*- texinfo -*-\n\ |
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315 @deftypefn {Operator} {} .*\n\ |
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316 Element by element power operator. If several complex results are possible,\n\ |
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317 returns the one with smallest non-negative argument (angle). Use\n\ |
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318 @code{realpow}, @code{realsqrt}, @code{cbrt}, or @code{nthroot} if a\n\ |
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319 real result is preferred.\n\ |
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320 @seealso{**, ^, .^, power, realpow, realsqrt, cbrt, nthroot}\n\ |
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321 @end deftypefn"), |
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322 |
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323 pair_type (".^", |
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324 "-*- texinfo -*-\n\ |
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325 @deftypefn {Operator} {} .^\n\ |
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326 Element by element power operator. If several complex results are possible,\n\ |
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327 returns the one with smallest non-negative argument (angle). Use\n\ |
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328 @code{realpow}, @code{realsqrt}, @code{cbrt}, or @code{nthroot} if a\n\ |
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329 real result is preferred.\n\ |
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330 @seealso{.**, ^, **, power, realpow, realsqrt, cbrt, nthroot}\n\ |
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331 @end deftypefn"), |
| 1 | 332 |
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333 pair_type ("./", |
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334 "-*- texinfo -*-\n\ |
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335 @deftypefn {Operator} {} ./\n\ |
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336 Element by element right division operator.\n\ |
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337 @seealso{/, .\\, rdivide, mrdivide}\n\ |
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338 @end deftypefn"), |
| 1 | 339 |
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340 pair_type ("/", |
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341 "-*- texinfo -*-\n\ |
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342 @deftypefn {Operator} {} /\n\ |
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343 Right division operator.\n\ |
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344 @seealso{./, \\, rdivide, mrdivide}\n\ |
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345 @end deftypefn"), |
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346 |
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347 pair_type (".\\", |
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348 "-*- texinfo -*-\n\ |
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349 @deftypefn {Operator} {} .\\\n\ |
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350 Element by element left division operator.\n\ |
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351 @seealso{\\, ./, rdivide, mrdivide}\n\ |
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352 @end deftypefn"), |
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353 |
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354 pair_type ("\\", |
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355 "-*- texinfo -*-\n\ |
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356 @deftypefn {Operator} {} \\\n\ |
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357 Left division operator.\n\ |
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358 @seealso{.\\, /, ldivide, mldivide}\n\ |
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359 @end deftypefn"), |
| 1 | 360 |
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361 pair_type (":", |
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362 "-*- texinfo -*-\n\ |
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363 @deftypefn {Operator} {} :\n\ |
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364 Select entire rows or columns of matrices.\n\ |
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365 @end deftypefn"), |
| 1 | 366 |
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367 pair_type (";", |
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368 "-*- texinfo -*-\n\ |
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369 @deftypefn {Operator} {} ;\n\ |
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370 Array row or command separator.\n\ |
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371 @seealso{,}\n\ |
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372 @end deftypefn"), |
| 1 | 373 |
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374 pair_type ("<", |
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375 "-*- texinfo -*-\n\ |
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376 @deftypefn {Operator} {} <\n\ |
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377 'Less than' operator.\n\ |
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378 @seealso{lt}\n\ |
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379 @end deftypefn"), |
| 1 | 380 |
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381 pair_type ("<=", |
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382 "-*- texinfo -*-\n\ |
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383 @deftypefn {Operator} {} <=\n\ |
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384 'Less than' or 'equals' operator.\n\ |
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385 @seealso{le}\n\ |
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386 @end deftypefn"), |
| 1 | 387 |
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388 pair_type ("=", |
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389 "-*- texinfo -*-\n\ |
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390 @deftypefn {Operator} {} =\n\ |
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391 Assignment operator.\n\ |
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392 @end deftypefn"), |
| 1 | 393 |
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394 pair_type ("==", |
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395 "-*- texinfo -*-\n\ |
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396 @deftypefn {Operator} {} ==\n\ |
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397 Equality test operator.\n\ |
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398 @seealso{eq}\n\ |
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399 @end deftypefn"), |
| 1 | 400 |
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401 pair_type (">", |
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402 "-*- texinfo -*-\n\ |
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403 @deftypefn {Operator} {} >\n\ |
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404 'Greater than' operator.\n\ |
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405 @seealso{gt}\n\ |
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406 @end deftypefn"), |
| 1 | 407 |
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408 pair_type (">=", |
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409 "-*- texinfo -*-\n\ |
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410 @deftypefn {Operator} {} >=\n\ |
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411 'Greater than' or 'equals' operator.\n\ |
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412 @seealso{ge}\n\ |
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413 @end deftypefn"), |
| 1 | 414 |
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415 pair_type ("[", |
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416 "-*- texinfo -*-\n\ |
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417 @deftypefn {Operator} {} [\n\ |
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418 Return list delimiter.\n\ |
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419 @seealso{]}\n\ |
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420 @end deftypefn"), |
| 1 | 421 |
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422 pair_type ("]", |
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423 "-*- texinfo -*-\n\ |
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424 @deftypefn {Operator} {} ]\n\ |
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425 Return list delimiter.\n\ |
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426 @seealso{[}\n\ |
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427 @end deftypefn"), |
| 1 | 428 |
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429 pair_type ("|", |
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430 "-*- texinfo -*-\n\ |
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431 @deftypefn {Operator} {} |\n\ |
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432 Element by element logical 'or' operator.\n\ |
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433 @seealso{||, or}\n\ |
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434 @end deftypefn"), |
| 1 | 435 |
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436 pair_type ("||", |
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437 "-*- texinfo -*-\n\ |
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438 @deftypefn {Operator} {} ||\n\ |
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439 Logical 'or' (with short-circuit evaluation) operator.\n\ |
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440 @seealso{|, or}\n\ |
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441 @end deftypefn"), |
| 1 | 442 }; |
| 443 | |
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444 const static pair_type keywords[] = |
| 1 | 445 { |
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446 pair_type ("break", |
| 5818 | 447 "-*- texinfo -*-\n\ |
| 11547 | 448 @deftypefn {Keyword} {} break\n\ |
| 5818 | 449 Exit the innermost enclosing do, while or for loop.\n\ |
| 13246 | 450 @seealso{do, while, for, parfor, continue}\n\ |
| 11547 | 451 @end deftypefn"), |
| 5040 | 452 |
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453 pair_type ("case", |
| 5818 | 454 "-*- texinfo -*-\n\ |
| 11547 | 455 @deftypefn {Keyword} {} case @{@var{value}@}\n\ |
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456 A case statement in an switch. Octave cases are exclusive and do not\n\ |
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457 fall-through as do C-language cases. A switch statement must have at least\n\ |
| 5818 | 458 one case. See @code{switch} for an example.\n\ |
| 459 @seealso{switch}\n\ | |
| 11547 | 460 @end deftypefn"), |
| 1 | 461 |
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462 pair_type ("catch", |
| 5818 | 463 "-*- texinfo -*-\n\ |
| 11547 | 464 @deftypefn {Keyword} {} catch\n\ |
| 5818 | 465 Begin the cleanup part of a try-catch block.\n\ |
| 466 @seealso{try}\n\ | |
| 11547 | 467 @end deftypefn"), |
| 1489 | 468 |
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469 pair_type ("continue", |
| 5818 | 470 "-*- texinfo -*-\n\ |
| 11547 | 471 @deftypefn {Keyword} {} continue\n\ |
| 5818 | 472 Jump to the end of the innermost enclosing do, while or for loop.\n\ |
| 13246 | 473 @seealso{do, while, for, parfor, break}\n\ |
| 11547 | 474 @end deftypefn"), |
| 5040 | 475 |
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476 pair_type ("do", |
| 5818 | 477 "-*- texinfo -*-\n\ |
| 11547 | 478 @deftypefn {Keyword} {} do\n\ |
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479 Begin a do-until loop. This differs from a do-while loop in that the\n\ |
| 5818 | 480 body of the loop is executed at least once.\n\ |
| 481 @seealso{while}\n\ | |
| 11547 | 482 @end deftypefn"), |
| 1 | 483 |
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484 pair_type ("else", |
| 5818 | 485 "-*- texinfo -*-\n\ |
| 11547 | 486 @deftypefn {Keyword} {} else\n\ |
| 5818 | 487 Alternate action for an if block. See @code{if} for an example.\n\ |
| 488 @seealso{if}\n\ | |
| 11547 | 489 @end deftypefn"), |
| 1 | 490 |
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491 pair_type ("elseif", |
| 5818 | 492 "-*- texinfo -*-\n\ |
| 11547 | 493 @deftypefn {Keyword} {} elseif (@var{condition})\n\ |
| 5818 | 494 Alternate conditional test for an if block. See @code{if} for an example.\n\ |
| 495 @seealso{if}\n\ | |
| 11547 | 496 @end deftypefn"), |
| 1 | 497 |
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498 pair_type ("end", |
| 5818 | 499 "-*- texinfo -*-\n\ |
| 11547 | 500 @deftypefn {Keyword} {} end\n\ |
| 10840 | 501 Mark the end of any @code{for}, @code{if}, @code{do}, @code{while}, or\n\ |
| 502 @code{function} block.\n\ | |
| 13246 | 503 @seealso{for, parfor, if, do, while, function}\n\ |
| 11547 | 504 @end deftypefn"), |
| 928 | 505 |
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506 pair_type ("end_try_catch", |
| 5818 | 507 "-*- texinfo -*-\n\ |
| 11547 | 508 @deftypefn {Keyword} {} end_try_catch\n\ |
| 5818 | 509 Mark the end of an @code{try-catch} block.\n\ |
| 510 @seealso{try, catch}\n\ | |
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511 @end deftypefn"), |
| 1489 | 512 |
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513 pair_type ("end_unwind_protect", |
| 5818 | 514 "-*- texinfo -*-\n\ |
| 11547 | 515 @deftypefn {Keyword} {} end_unwind_protect\n\ |
| 5818 | 516 Mark the end of an unwind_protect block.\n\ |
| 517 @seealso{unwind_protect}\n\ | |
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518 @end deftypefn"), |
| 1 | 519 |
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520 pair_type ("endfor", |
| 5818 | 521 "-*- texinfo -*-\n\ |
| 11547 | 522 @deftypefn {Keyword} {} endfor\n\ |
| 5818 | 523 Mark the end of a for loop. See @code{for} for an example.\n\ |
| 524 @seealso{for}\n\ | |
| 11547 | 525 @end deftypefn"), |
| 1 | 526 |
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527 pair_type ("endfunction", |
| 5818 | 528 "-*- texinfo -*-\n\ |
| 11547 | 529 @deftypefn {Keyword} {} endfunction\n\ |
| 5818 | 530 Mark the end of a function.\n\ |
| 531 @seealso{function}\n\ | |
| 11547 | 532 @end deftypefn"), |
| 1 | 533 |
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534 pair_type ("endif", |
| 5818 | 535 "-*- texinfo -*-\n\ |
| 11547 | 536 @deftypefn {Keyword} {} endif\n\ |
| 5818 | 537 Mark the end of an if block. See @code{if} for an example.\n\ |
| 538 @seealso{if}\n\ | |
| 11547 | 539 @end deftypefn"), |
| 1 | 540 |
| 13246 | 541 pair_type ("endparfor", |
| 542 "-*- texinfo -*-\n\ | |
| 543 @deftypefn {Keyword} {} endparfor\n\ | |
| 544 Mark the end of a parfor loop. See @code{parfor} for an example.\n\ | |
| 545 @seealso{parfor}\n\ | |
| 546 @end deftypefn"), | |
| 547 | |
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548 pair_type ("endswitch", |
| 5818 | 549 "-*- texinfo -*-\n\ |
| 11547 | 550 @deftypefn {Keyword} {} endswitch\n\ |
| 5818 | 551 Mark the end of a switch block. See @code{switch} for an example.\n\ |
| 552 @seealso{switch}\n\ | |
| 11547 | 553 @end deftypefn"), |
| 5122 | 554 |
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555 pair_type ("endwhile", |
| 5818 | 556 "-*- texinfo -*-\n\ |
| 11547 | 557 @deftypefn {Keyword} {} endwhile\n\ |
| 5818 | 558 Mark the end of a while loop. See @code{while} for an example.\n\ |
| 559 @seealso{do, while}\n\ | |
| 11547 | 560 @end deftypefn"), |
| 1 | 561 |
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562 pair_type ("for", |
| 5818 | 563 "-*- texinfo -*-\n\ |
| 11547 | 564 @deftypefn {Keyword} {} for @var{i} = @var{range}\n\ |
| 5818 | 565 Begin a for loop.\n\ |
| 10840 | 566 \n\ |
| 5818 | 567 @example\n\ |
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568 @group\n\ |
| 5818 | 569 for i = 1:10\n\ |
| 570 i\n\ | |
| 571 endfor\n\ | |
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572 @end group\n\ |
| 5818 | 573 @end example\n\ |
| 13246 | 574 @seealso{do, parfor, while}\n\ |
| 11547 | 575 @end deftypefn"), |
| 1 | 576 |
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577 pair_type ("function", |
| 5818 | 578 "-*- texinfo -*-\n\ |
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579 @deftypefn {Keyword} {} function @var{outputs} = function (@var{input}, @dots{})\n\ |
| 11547 | 580 @deftypefnx {Keyword} {} function {} function (@var{input}, @dots{})\n\ |
| 581 @deftypefnx {Keyword} {} function @var{outputs} = function\n\ | |
| 5818 | 582 Begin a function body with @var{outputs} as results and @var{inputs} as\n\ |
| 583 parameters.\n\ | |
| 584 @seealso{return}\n\ | |
| 11547 | 585 @end deftypefn"), |
| 1 | 586 |
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587 pair_type ("global", |
| 5818 | 588 "-*- texinfo -*-\n\ |
| 11547 | 589 @deftypefn {Keyword} {} global\n\ |
| 5818 | 590 Declare variables to have global scope.\n\ |
| 10840 | 591 \n\ |
| 5818 | 592 @example\n\ |
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593 @group\n\ |
| 5818 | 594 global @var{x};\n\ |
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595 if (isempty (@var{x}))\n\ |
| 5818 | 596 x = 1;\n\ |
| 597 endif\n\ | |
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598 @end group\n\ |
| 5818 | 599 @end example\n\ |
| 600 @seealso{persistent}\n\ | |
| 11547 | 601 @end deftypefn"), |
| 1 | 602 |
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603 pair_type ("if", |
| 5393 | 604 "-*- texinfo -*-\n\ |
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605 @deftypefn {Keyword} {} if (@var{cond}) @dots{} endif\n\ |
| 11547 | 606 @deftypefnx {Keyword} {} if (@var{cond}) @dots{} else @dots{} endif\n\ |
| 607 @deftypefnx {Keyword} {} if (@var{cond}) @dots{} elseif (@var{cond}) @dots{} endif\n\ | |
| 608 @deftypefnx {Keyword} {} if (@var{cond}) @dots{} elseif (@var{cond}) @dots{} else @dots{} endif\n\ | |
| 5393 | 609 Begin an if block.\n\ |
| 10840 | 610 \n\ |
| 5818 | 611 @example\n\ |
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612 @group\n\ |
| 5818 | 613 x = 1;\n\ |
| 614 if (x == 1)\n\ | |
| 615 disp (\"one\");\n\ | |
| 616 elseif (x == 2)\n\ | |
| 617 disp (\"two\");\n\ | |
| 618 else\n\ | |
| 619 disp (\"not one or two\");\n\ | |
| 620 endif\n\ | |
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621 @end group\n\ |
| 5818 | 622 @end example\n\ |
| 5646 | 623 @seealso{switch}\n\ |
| 11547 | 624 @end deftypefn"), |
| 1 | 625 |
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626 pair_type ("otherwise", |
| 5818 | 627 "-*- texinfo -*-\n\ |
| 11547 | 628 @deftypefn {Keyword} {} otherwise\n\ |
| 5818 | 629 The default statement in a switch block (similar to else in an if block).\n\ |
| 630 @seealso{switch}\n\ | |
| 11547 | 631 @end deftypefn"), |
| 5040 | 632 |
| 13246 | 633 pair_type ("parfor", |
| 634 "-*- texinfo -*-\n\ | |
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635 @deftypefn {Keyword} {} for @var{i} = @var{range}\n\ |
| 13246 | 636 @deftypefnx {Keyword} {} for (@var{i} = @var{range}, @var{maxproc})\n\ |
| 637 Begin a for loop that may execute in parallel.\n\ | |
| 638 \n\ | |
| 639 @example\n\ | |
| 640 @group\n\ | |
| 641 parfor i = 1:10\n\ | |
| 642 i\n\ | |
| 643 endparfor\n\ | |
| 644 @end group\n\ | |
| 645 @end example\n\ | |
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646 @seealso{for, do, while}\n\ |
| 13246 | 647 @end deftypefn"), |
| 648 | |
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649 pair_type ("persistent", |
| 5818 | 650 "-*- texinfo -*-\n\ |
| 11547 | 651 @deftypefn {Keyword} {} persistent @var{var}\n\ |
| 5818 | 652 Declare variables as persistent. A variable that has been declared\n\ |
| 5623 | 653 persistent within a function will retain its contents in memory between\n\ |
| 654 subsequent calls to the same function. The difference between persistent\n\ | |
| 5818 | 655 variables and global variables is that persistent variables are local in \n\ |
| 656 scope to a particular function and are not visible elsewhere.\n\ | |
| 657 @seealso{global}\n\ | |
| 11547 | 658 @end deftypefn"), |
| 4686 | 659 |
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660 pair_type ("return", |
| 5818 | 661 "-*- texinfo -*-\n\ |
| 11547 | 662 @deftypefn {Keyword} {} return\n\ |
| 5818 | 663 Return from a function.\n\ |
| 664 @seealso{function}\n\ | |
| 11547 | 665 @end deftypefn"), |
| 928 | 666 |
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667 pair_type ("static", |
| 5818 | 668 "-*- texinfo -*-\n\ |
| 11547 | 669 @deftypefn {Keyword} {} static\n\ |
| 5818 | 670 This function has been deprecated in favor of persistent.\n\ |
| 671 @seealso{persistent}\n\ | |
| 11547 | 672 @end deftypefn"), |
| 5040 | 673 |
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674 pair_type ("switch", |
| 5818 | 675 "-*- texinfo -*-\n\ |
| 11547 | 676 @deftypefn {Keyword} {} switch @var{statement}\n\ |
| 5818 | 677 Begin a switch block.\n\ |
| 10840 | 678 \n\ |
| 5818 | 679 @example\n\ |
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680 @group\n\ |
| 5818 | 681 yesno = \"yes\"\n\ |
| 682 \n\ | |
| 683 switch yesno\n\ | |
| 5832 | 684 case @{\"Yes\" \"yes\" \"YES\" \"y\" \"Y\"@}\n\ |
| 5818 | 685 value = 1;\n\ |
| 5832 | 686 case @{\"No\" \"no\" \"NO\" \"n\" \"N\"@}\n\ |
| 5818 | 687 value = 0;\n\ |
| 688 otherwise\n\ | |
| 689 error (\"invalid value\");\n\ | |
| 690 endswitch\n\ | |
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691 @end group\n\ |
| 5818 | 692 @end example\n\ |
| 693 @seealso{if, case, otherwise}\n\ | |
| 11547 | 694 @end deftypefn"), |
| 5040 | 695 |
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696 pair_type ("try", |
| 5818 | 697 "-*- texinfo -*-\n\ |
| 11547 | 698 @deftypefn {Keyword} {} try\n\ |
| 5818 | 699 Begin a try-catch block.\n\ |
| 6138 | 700 \n\ |
| 701 If an error occurs within a try block, then the catch code will be run and\n\ | |
| 702 execution will proceed after the catch block (though it is often\n\ | |
| 703 recommended to use the lasterr function to re-throw the error after cleanup\n\ | |
| 704 is completed).\n\ | |
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705 @seealso{catch, unwind_protect}\n\ |
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706 @end deftypefn"), |
| 1489 | 707 |
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708 pair_type ("until", |
| 5818 | 709 "-*- texinfo -*-\n\ |
| 11547 | 710 @deftypefn {Keyword} {} until\n\ |
| 5818 | 711 End a do-until loop.\n\ |
| 712 @seealso{do}\n\ | |
| 11547 | 713 @end deftypefn"), |
| 5040 | 714 |
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715 pair_type ("unwind_protect", |
| 5818 | 716 "-*- texinfo -*-\n\ |
| 11547 | 717 @deftypefn {Keyword} {} unwind_protect\n\ |
| 5818 | 718 Begin an unwind_protect block.\n\ |
| 6138 | 719 \n\ |
| 720 If an error occurs within the first part of an unwind_protect block\n\ | |
| 721 the commands within the unwind_protect_cleanup block are executed before\n\ | |
| 722 the error is thrown. If an error is not thrown, then the\n\ | |
| 723 unwind_protect_cleanup block is still executed (in other words, the\n\ | |
| 724 unwind_protect_cleanup will be run with or without an error in the\n\ | |
| 725 unwind_protect block).\n\ | |
|
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726 @seealso{unwind_protect_cleanup, try}\n\ |
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727 @end deftypefn"), |
| 928 | 728 |
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729 pair_type ("unwind_protect_cleanup", |
| 5818 | 730 "-*- texinfo -*-\n\ |
| 11547 | 731 @deftypefn {Keyword} {} unwind_protect_cleanup\n\ |
| 5818 | 732 Begin the cleanup section of an unwind_protect block.\n\ |
| 733 @seealso{unwind_protect}\n\ | |
|
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734 @end deftypefn"), |
| 1 | 735 |
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736 pair_type ("varargin", |
| 5818 | 737 "-*- texinfo -*-\n\ |
| 11547 | 738 @deftypefn {Keyword} {} varargin\n\ |
| 5818 | 739 Pass an arbitrary number of arguments into a function.\n\ |
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740 @seealso{varargout, nargin, isargout, nargout, nthargout}\n\ |
| 11547 | 741 @end deftypefn"), |
| 5040 | 742 |
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743 pair_type ("varargout", |
| 5818 | 744 "-*- texinfo -*-\n\ |
| 11547 | 745 @deftypefn {Keyword} {} varargout\n\ |
| 5818 | 746 Pass an arbitrary number of arguments out of a function.\n\ |
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747 @seealso{varargin, nargin, isargout, nargout, nthargout}\n\ |
| 11547 | 748 @end deftypefn"), |
| 5040 | 749 |
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750 pair_type ("while", |
| 5818 | 751 "-*- texinfo -*-\n\ |
| 11547 | 752 @deftypefn {Keyword} {} while\n\ |
| 5818 | 753 Begin a while loop.\n\ |
| 754 @seealso{do}\n\ | |
| 11547 | 755 @end deftypefn"), |
| 1 | 756 }; |
| 757 | |
| 581 | 758 // Return a copy of the operator or keyword names. |
| 3016 | 759 static string_vector |
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760 names (const map_type& lst) |
| 1 | 761 { |
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762 string_vector retval (lst.size ()); |
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763 int j = 0; |
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764 for (map_iter iter = lst.begin (); iter != lst.end (); iter ++) |
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765 retval [j++] = iter->first; |
| 1755 | 766 return retval; |
| 1 | 767 } |
| 768 | |
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769 const static map_type operators_map (operators, operators + size (operators)); |
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770 const static map_type keywords_map (keywords, keywords + size (keywords)); |
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771 const static string_vector keyword_names = names (keywords_map); |
| 1 | 772 |
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773 // FIXME -- It's not likely that this does the right thing now. |
| 3016 | 774 |
| 775 string_vector | |
| 776 make_name_list (void) | |
| 777 { | |
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778 const int key_len = keyword_names.length (); |
| 3016 | 779 |
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780 const string_vector bif = symbol_table::built_in_function_names (); |
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781 const int bif_len = bif.length (); |
| 4009 | 782 |
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783 const string_vector cfl = symbol_table::cmdline_function_names (); |
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784 const int cfl_len = cfl.length (); |
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785 |
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786 const string_vector lcl = symbol_table::variable_names (); |
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787 const int lcl_len = lcl.length (); |
| 3016 | 788 |
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789 const string_vector ffl = load_path::fcn_names (); |
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790 const int ffl_len = ffl.length (); |
| 3016 | 791 |
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792 const string_vector afl = autoloaded_functions (); |
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793 const int afl_len = afl.length (); |
| 5592 | 794 |
|
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795 const int total_len |
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796 = key_len + bif_len + cfl_len + lcl_len + ffl_len + afl_len; |
| 3016 | 797 |
| 798 string_vector list (total_len); | |
| 799 | |
| 800 // Put all the symbols in one big list. | |
| 801 | |
| 802 int j = 0; | |
| 803 int i = 0; | |
| 804 for (i = 0; i < key_len; i++) | |
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805 list[j++] = keyword_names[i]; |
| 3016 | 806 |
| 7336 | 807 for (i = 0; i < bif_len; i++) |
| 808 list[j++] = bif[i]; | |
| 4009 | 809 |
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810 for (i = 0; i < cfl_len; i++) |
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811 list[j++] = cfl[i]; |
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812 |
| 3016 | 813 for (i = 0; i < lcl_len; i++) |
| 814 list[j++] = lcl[i]; | |
| 815 | |
| 816 for (i = 0; i < ffl_len; i++) | |
| 817 list[j++] = ffl[i]; | |
| 818 | |
| 5592 | 819 for (i = 0; i < afl_len; i++) |
| 820 list[j++] = afl[i]; | |
| 821 | |
| 3016 | 822 return list; |
| 823 } | |
| 824 | |
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825 static bool |
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826 looks_like_html (const std::string& msg) |
| 3014 | 827 { |
|
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828 const size_t p1 = msg.find ('\n'); |
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829 std::string t = msg.substr (0, p1); |
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830 const size_t p2 = t.find ("<html"); // FIXME: this comparison should be case-insensitive |
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831 |
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832 return (p2 != std::string::npos); |
| 2470 | 833 } |
| 3014 | 834 |
| 835 static bool | |
| 3523 | 836 looks_like_texinfo (const std::string& msg, size_t& p1) |
| 3295 | 837 { |
| 838 p1 = msg.find ('\n'); | |
| 839 | |
| 3523 | 840 std::string t = msg.substr (0, p1); |
| 3295 | 841 |
| 8021 | 842 if (p1 == std::string::npos) |
| 3295 | 843 p1 = 0; |
| 844 | |
| 845 size_t p2 = t.find ("-*- texinfo -*-"); | |
| 846 | |
| 8021 | 847 return (p2 != std::string::npos); |
| 3295 | 848 } |
| 849 | |
| 3355 | 850 static bool |
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851 raw_help_from_symbol_table (const std::string& nm, std::string& h, |
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852 std::string& w, bool& symbol_found) |
| 3355 | 853 { |
| 854 bool retval = false; | |
| 855 | |
| 7336 | 856 octave_value val = symbol_table::find_function (nm); |
| 3355 | 857 |
| 7336 | 858 if (val.is_defined ()) |
| 3355 | 859 { |
| 7336 | 860 octave_function *fcn = val.function_value (); |
| 861 | |
| 862 if (fcn) | |
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863 { |
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864 symbol_found = true; |
| 5399 | 865 |
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866 h = fcn->doc_string (); |
| 7336 | 867 |
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868 retval = true; |
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869 |
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870 w = fcn->fcn_file_name (); |
| 6243 | 871 |
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872 if (w.empty ()) |
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873 w = fcn->is_user_function () |
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874 ? "command-line function" : "built-in function"; |
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875 } |
| 6243 | 876 } |
| 3355 | 877 |
| 6243 | 878 return retval; |
| 879 } | |
| 880 | |
| 881 static bool | |
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882 raw_help_from_file (const std::string& nm, std::string& h, |
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883 std::string& file, bool& symbol_found) |
| 6243 | 884 { |
| 885 bool retval = false; | |
| 886 | |
|
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887 // FIXME -- this is a bit of a kluge... |
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888 unwind_protect frame; |
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889 frame.protect_var (reading_script_file); |
|
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890 reading_script_file = true; |
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891 |
| 6243 | 892 h = get_help_from_file (nm, symbol_found, file); |
| 893 | |
| 894 if (h.length () > 0) | |
| 895 retval = true; | |
| 896 | |
| 897 return retval; | |
| 898 } | |
| 899 | |
| 900 static bool | |
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901 raw_help_from_map (const std::string& nm, std::string& h, |
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902 const map_type& map, bool& symbol_found) |
| 3355 | 903 { |
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904 map_iter idx = map.find (nm); |
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905 symbol_found = (idx != map.end ()); |
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906 h = (symbol_found) ? idx->second : ""; |
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907 return symbol_found; |
| 3355 | 908 } |
| 909 | |
| 6243 | 910 std::string |
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911 raw_help (const std::string& nm, bool& symbol_found) |
| 6243 | 912 { |
| 913 std::string h; | |
| 914 std::string w; | |
| 915 std::string f; | |
| 916 | |
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917 (raw_help_from_symbol_table (nm, h, w, symbol_found) |
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918 || raw_help_from_file (nm, h, f, symbol_found) |
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919 || raw_help_from_map (nm, h, operators_map, symbol_found) |
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920 || raw_help_from_map (nm, h, keywords_map, symbol_found)); |
| 6243 | 921 |
| 922 return h; | |
| 923 } | |
| 924 | |
| 1140 | 925 static void |
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926 do_get_help_text (const std::string& name, std::string& text, |
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927 std::string& format) |
| 1140 | 928 { |
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929 bool symbol_found = false; |
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930 text = raw_help (name, symbol_found); |
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931 |
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932 format = "Not found"; |
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|
933 if (symbol_found) |
| 1140 | 934 { |
|
8575
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
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diff
changeset
|
935 size_t idx = -1; |
|
8631
52956d669506
Display sensible error message when the help text of an undocumented function is requested
Soren Hauberg <hauberg@gmail.com>
parents:
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diff
changeset
|
936 if (text.empty ()) |
|
52956d669506
Display sensible error message when the help text of an undocumented function is requested
Soren Hauberg <hauberg@gmail.com>
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diff
changeset
|
937 { |
|
52956d669506
Display sensible error message when the help text of an undocumented function is requested
Soren Hauberg <hauberg@gmail.com>
parents:
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diff
changeset
|
938 format = "Not documented"; |
|
52956d669506
Display sensible error message when the help text of an undocumented function is requested
Soren Hauberg <hauberg@gmail.com>
parents:
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diff
changeset
|
939 } |
|
52956d669506
Display sensible error message when the help text of an undocumented function is requested
Soren Hauberg <hauberg@gmail.com>
parents:
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diff
changeset
|
940 else if (looks_like_texinfo (text, idx)) |
|
8575
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
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diff
changeset
|
941 { |
|
f134925a1cfa
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Soren Hauberg <soren@hauberg.org>
parents:
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diff
changeset
|
942 format = "texinfo"; |
|
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
943 text.erase (0, idx); |
|
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
944 } |
|
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
8503
diff
changeset
|
945 else if (looks_like_html (text)) |
|
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
parents:
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diff
changeset
|
946 { |
|
f134925a1cfa
m-file implementation of help system
Soren Hauberg <soren@hauberg.org>
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diff
changeset
|
947 format = "html"; |
|
f134925a1cfa
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Soren Hauberg <soren@hauberg.org>
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diff
changeset
|
948 } |
| 5399 | 949 else |
|
8575
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diff
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|
950 { |
|
f134925a1cfa
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diff
changeset
|
951 format = "plain text"; |
|
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Soren Hauberg <soren@hauberg.org>
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diff
changeset
|
952 } |
| 1140 | 953 } |
| 954 } | |
| 955 | |
|
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|
956 DEFUN (get_help_text, args, , "-*- texinfo -*-\n\ |
|
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|
957 @deftypefn {Loadable Function} {[@var{text}, @var{format}] =} get_help_text (@var{name})\n\ |
|
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Add gen_doc_cache, get_help_text, get_help_text_from_file, get_first_help_sentence to documentation.
Rik <octave@nomad.inbox5.com>
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changeset
|
958 Return the raw help text of function @var{name}.\n\ |
| 3168 | 959 \n\ |
|
12519
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Add gen_doc_cache, get_help_text, get_help_text_from_file, get_first_help_sentence to documentation.
Rik <octave@nomad.inbox5.com>
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changeset
|
960 The raw help text is returned in @var{text} and the format in @var{format}\n\ |
|
91ccd08fe80c
Add gen_doc_cache, get_help_text, get_help_text_from_file, get_first_help_sentence to documentation.
Rik <octave@nomad.inbox5.com>
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changeset
|
961 The format is a string which is one of @t{\"texinfo\"}, @t{\"html\"}, or\n\ |
|
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diff
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|
962 @t{\"plain text\"}.\n\ |
|
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use consistent format for doc strings of internal functions
John W. Eaton <jwe@octave.org>
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|
963 @end deftypefn") |
| 529 | 964 { |
| 2086 | 965 octave_value_list retval; |
| 529 | 966 |
|
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|
967 if (args.length () == 1) |
|
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|
968 { |
|
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diff
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|
969 const std::string name = args (0).string_value (); |
| 1755 | 970 |
|
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|
971 if (! error_state) |
|
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|
972 { |
|
57a59eae83cc
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|
973 std::string text; |
|
57a59eae83cc
untabify src C++ source files
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|
974 std::string format; |
| 529 | 975 |
|
10315
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untabify src C++ source files
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|
976 do_get_help_text (name, text, format); |
|
11586
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|
977 |
|
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|
978 retval(1) = format; |
|
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|
979 retval(0) = text; |
|
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|
980 } |
|
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|
981 else |
|
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untabify src C++ source files
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|
982 error ("get_help_text: invalid input"); |
|
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|
983 } |
| 529 | 984 else |
|
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|
985 print_usage (); |
| 529 | 986 |
| 987 return retval; | |
| 988 } | |
| 989 | |
|
9806
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|
990 static void |
|
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|
991 do_get_help_text_from_file (const std::string& fname, std::string& text, |
|
10315
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|
992 std::string& format) |
|
9806
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|
993 { |
|
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|
994 bool symbol_found = false; |
|
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|
995 |
|
8e345f2fe4d6
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|
996 std::string f; |
|
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|
997 |
|
8e345f2fe4d6
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|
998 raw_help_from_file (fname, text, f, symbol_found); |
|
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|
999 |
|
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|
1000 format = "Not found"; |
|
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|
1001 if (symbol_found) |
|
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|
1002 { |
|
8e345f2fe4d6
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changeset
|
1003 size_t idx = -1; |
|
8e345f2fe4d6
improved support for Contents.m files
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parents:
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diff
changeset
|
1004 if (text.empty ()) |
|
8e345f2fe4d6
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diff
changeset
|
1005 { |
|
8e345f2fe4d6
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diff
changeset
|
1006 format = "Not documented"; |
|
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parents:
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diff
changeset
|
1007 } |
|
8e345f2fe4d6
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changeset
|
1008 else if (looks_like_texinfo (text, idx)) |
|
8e345f2fe4d6
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diff
changeset
|
1009 { |
|
8e345f2fe4d6
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parents:
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diff
changeset
|
1010 format = "texinfo"; |
|
8e345f2fe4d6
improved support for Contents.m files
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diff
changeset
|
1011 text.erase (0, idx); |
|
8e345f2fe4d6
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diff
changeset
|
1012 } |
|
8e345f2fe4d6
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changeset
|
1013 else if (looks_like_html (text)) |
|
8e345f2fe4d6
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diff
changeset
|
1014 { |
|
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changeset
|
1015 format = "html"; |
|
8e345f2fe4d6
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changeset
|
1016 } |
|
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changeset
|
1017 else |
|
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|
1018 { |
|
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|
1019 format = "plain text"; |
|
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|
1020 } |
|
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|
1021 } |
|
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|
1022 } |
|
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changeset
|
1023 |
|
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changeset
|
1024 DEFUN (get_help_text_from_file, args, , |
|
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1025 "-*- texinfo -*-\n\ |
|
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|
1026 @deftypefn {Loadable Function} {[@var{text}, @var{format}] =} get_help_text_from_file (@var{fname})\n\ |
|
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changeset
|
1027 Return the raw help text from the file @var{fname}.\n\ |
|
9806
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|
1028 \n\ |
|
12519
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changeset
|
1029 The raw help text is returned in @var{text} and the format in @var{format}\n\ |
|
91ccd08fe80c
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|
1030 The format is a string which is one of @t{\"texinfo\"}, @t{\"html\"}, or\n\ |
|
9806
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|
1031 @t{\"plain text\"}.\n\ |
|
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|
1032 @end deftypefn") |
|
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|
1033 { |
|
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changeset
|
1034 octave_value_list retval; |
|
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|
1035 |
|
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changeset
|
1036 if (args.length () == 1) |
|
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|
1037 { |
|
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|
1038 const std::string fname = args(0).string_value (); |
|
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|
1039 |
|
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changeset
|
1040 if (! error_state) |
|
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|
1041 { |
|
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changeset
|
1042 std::string text; |
|
57a59eae83cc
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changeset
|
1043 std::string format; |
|
9806
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|
1044 |
|
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|
1045 do_get_help_text_from_file (fname, text, format); |
|
11586
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|
1046 |
|
10315
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changeset
|
1047 retval(1) = format; |
|
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untabify src C++ source files
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changeset
|
1048 retval(0) = text; |
|
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|
1049 } |
|
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|
1050 else |
|
10315
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|
1051 error ("get_help_text_from_file: invalid input"); |
|
9806
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|
1052 } |
|
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|
1053 else |
|
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changeset
|
1054 print_usage (); |
|
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|
1055 |
|
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changeset
|
1056 return retval; |
|
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|
1057 } |
|
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changeset
|
1058 |
|
8812
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changeset
|
1059 // Return a cell array of strings containing the names of all |
|
7d48766c21a5
use consistent format for doc strings of internal functions
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diff
changeset
|
1060 // operators. |
|
7d48766c21a5
use consistent format for doc strings of internal functions
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|
1061 |
|
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1062 DEFUN (__operators__, , , |
|
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1063 "-*- texinfo -*-\n\ |
|
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1064 @deftypefn {Function File} __operators__ ()\n\ |
|
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1065 Undocumented internal function.\n\ |
|
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1066 @end deftypefn") |
| 3355 | 1067 { |
|
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1068 return octave_value (Cell (names (operators_map))); |
| 3355 | 1069 } |
| 1070 | |
|
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1071 // Return a cell array of strings containing the names of all |
|
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1072 // keywords. |
|
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1073 |
|
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1074 DEFUN (__keywords__, , , |
|
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1075 "-*- texinfo -*-\n\ |
|
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1076 @deftypefn {Function File} __keywords__ ()\n\ |
|
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1077 Undocumented internal function.\n\ |
|
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1078 @end deftypefn") |
| 581 | 1079 { |
|
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1080 return octave_value (Cell (names (keywords_map))); |
| 581 | 1081 } |
| 1082 | |
|
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1083 // Return a cell array of strings containing the names of all builtin |
|
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1084 // functions. |
|
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1085 |
|
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|
1086 DEFUN (__builtins__, , , |
|
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1087 "-*- texinfo -*-\n\ |
|
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1088 @deftypefn {Function File} __builtins__ ()\n\ |
|
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1089 Undocumented internal function.\n\ |
|
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1090 @end deftypefn") |
| 3355 | 1091 { |
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1092 const string_vector bif = symbol_table::built_in_function_names (); |
| 3355 | 1093 |
|
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1094 return octave_value (Cell (bif)); |
| 3355 | 1095 } |
| 1096 | |
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1097 static std::string |
|
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1098 do_which (const std::string& name, std::string& type) |
| 3355 | 1099 { |
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1100 std::string file; |
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1101 |
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1102 type = std::string (); |
| 3355 | 1103 |
| 7336 | 1104 octave_value val = symbol_table::find_function (name); |
| 1105 | |
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1106 if (name.find_first_of ('.') == std::string::npos) |
| 3355 | 1107 { |
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1108 if (val.is_defined ()) |
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1109 { |
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1110 octave_function *fcn = val.function_value (); |
| 7336 | 1111 |
|
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1112 if (fcn) |
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1113 { |
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1114 file = fcn->fcn_file_name (); |
| 3355 | 1115 |
|
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1116 if (file.empty ()) |
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1117 { |
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1118 if (fcn->is_user_function ()) |
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1119 type = "command-line function"; |
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1120 else |
|
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1121 { |
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1122 file = fcn->src_file_name (); |
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1123 type = "built-in function"; |
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1124 } |
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1125 } |
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1126 else |
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1127 type = val.is_user_script () |
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1128 ? std::string ("script") : std::string ("function"); |
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1129 } |
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1130 } |
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1131 else |
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1132 { |
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1133 // We might find a file that contains only a doc string. |
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1134 |
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1135 file = load_path::find_fcn_file (name); |
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1136 } |
| 7336 | 1137 } |
|
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1138 else |
|
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1139 { |
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1140 // File query. |
|
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1141 |
|
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1142 // For compatibility: "file." queries "file". |
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1143 if (name.size () > 1 && name[name.size () - 1] == '.') |
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1144 file = load_path::find_file (name.substr (0, name.size () - 1)); |
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1145 else |
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1146 file = load_path::find_file (name); |
|
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1147 } |
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1148 |
|
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1149 |
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1150 return file; |
| 3355 | 1151 } |
| 1152 | |
|
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1153 std::string |
|
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1154 do_which (const std::string& name) |
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1155 { |
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1156 std::string retval; |
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1157 |
|
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1158 std::string type; |
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1159 |
|
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1160 retval = do_which (name, type); |
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1161 |
|
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1162 return retval; |
|
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1163 } |
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1164 |
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|
1165 DEFUN (__which__, args, , |
| 3361 | 1166 "-*- texinfo -*-\n\ |
|
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1167 @deftypefn {Built-in Function} {} __which__ (@var{name}, @dots{})\n\ |
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1168 Undocumented internal function.\n\ |
|
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1169 @end deftypefn") |
| 581 | 1170 { |
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1171 octave_value retval; |
| 581 | 1172 |
| 1968 | 1173 string_vector argv = args.make_argv ("which"); |
| 1755 | 1174 |
| 3355 | 1175 if (! error_state) |
| 1176 { | |
| 1177 int argc = argv.length (); | |
| 581 | 1178 |
| 3355 | 1179 if (argc > 1) |
|
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1180 { |
|
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1181 octave_map m (dim_vector (1, argc-1)); |
|
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1182 |
|
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1183 Cell names (1, argc-1); |
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1184 Cell files (1, argc-1); |
|
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1185 Cell types (1, argc-1); |
|
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1186 |
|
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1187 for (int i = 1; i < argc; i++) |
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1188 { |
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1189 std::string name = argv[i]; |
|
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1190 |
|
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1191 std::string type; |
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1192 |
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1193 std::string file = do_which (name, type); |
| 3141 | 1194 |
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1195 names(i-1) = name; |
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1196 files(i-1) = file; |
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1197 types(i-1) = type; |
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1198 } |
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1199 |
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1200 m.assign ("name", names); |
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1201 m.assign ("file", files); |
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1202 m.assign ("type", types); |
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1203 |
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1204 retval = m; |
|
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1205 } |
| 3355 | 1206 else |
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1207 print_usage (); |
| 581 | 1208 } |
| 1209 | |
| 1210 return retval; | |
| 1211 } | |
| 1212 | |
|
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1213 // FIXME -- Are we sure this function always does the right thing? |
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1214 inline bool |
|
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|
1215 file_is_in_dir (const std::string filename, const std::string dir) |
| 5447 | 1216 { |
|
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1217 if (filename.find (dir) == 0) |
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1218 { |
|
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1219 const int dir_len = dir.size (); |
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1220 const int filename_len = filename.size (); |
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1221 const int max_allowed_seps = file_ops::is_dir_sep (dir [dir_len-1]) ? 0 : 1; |
|
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1222 |
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1223 int num_seps = 0; |
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1224 for (int i = dir_len; i < filename_len; i++) |
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1225 if (file_ops::is_dir_sep (filename [i])) |
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1226 num_seps ++; |
|
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1227 |
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1228 return (num_seps <= max_allowed_seps); |
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1229 } |
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1230 else |
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1231 return false; |
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1232 } |
| 5447 | 1233 |
|
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1234 // Return a cell array of strings containing the names of all |
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1235 // functions available in DIRECTORY. If no directory is given, search |
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1236 // the current path. |
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1237 |
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1238 DEFUN (__list_functions__, args, , |
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1239 "-*- texinfo -*-\n\ |
| 10840 | 1240 @deftypefn {Function File} {@var{retval} =} __list_functions__ ()\n\ |
| 1241 @deftypefnx {Function File} {@var{retval} =} __list_functions__ (@var{directory})\n\ | |
|
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1242 Undocumented internal function.\n\ |
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1243 @end deftypefn") |
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1244 { |
|
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1245 octave_value retval; |
| 5447 | 1246 |
|
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1247 // Get list of functions |
|
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1248 string_vector ffl = load_path::fcn_names (); |
|
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1249 string_vector afl = autoloaded_functions (); |
|
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1250 |
|
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1251 if (args.length () == 0) |
|
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1252 retval = Cell (ffl.append (afl)); |
| 5447 | 1253 else |
| 1254 { | |
|
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1255 std::string dir = args (0).string_value (); |
|
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1256 |
|
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1257 if (! error_state) |
|
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1258 { |
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1259 string_vector fl = load_path::files (dir, true); |
|
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1260 |
|
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1261 if (! error_state) |
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1262 { |
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1263 // Return a sorted list with unique entries (in case of |
|
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1264 // .m and .oct versions of the same function in a given |
|
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1265 // directory, for example). |
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1266 fl.sort (true); |
|
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1267 |
|
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1268 retval = Cell (fl); |
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1269 } |
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1270 } |
| 5447 | 1271 else |
|
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1272 error ("__list_functions__: DIRECTORY argument must be a string"); |
|
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1273 } |
| 5447 | 1274 |
| 1275 return retval; | |
| 1276 } | |
| 1277 | |
| 8861 | 1278 DEFUN (doc_cache_file, args, nargout, |
| 1279 "-*- texinfo -*-\n\ | |
| 10840 | 1280 @deftypefn {Built-in Function} {@var{val} =} doc_cache_file ()\n\ |
| 8861 | 1281 @deftypefnx {Built-in Function} {@var{old_val} =} doc_cache_file (@var{new_val})\n\ |
|
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1282 @deftypefnx {Built-in Function} {} doc_cache_file (@var{new_val}, \"local\")\n\ |
| 8861 | 1283 Query or set the internal variable that specifies the name of the\n\ |
|
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1284 Octave documentation cache file. A cache file significantly improves\n\ |
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1285 the performance of the @code{lookfor} command. The default value is \n\ |
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1286 @file{@var{octave-home}/share/octave/@var{version}/etc/doc-cache},\n\ |
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1287 in which @var{octave-home} is the root directory of the Octave installation,\n\ |
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1288 and @var{version} is the Octave version number.\n\ |
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1289 The default value may be overridden by the environment variable\n\ |
| 10840 | 1290 @w{@env{OCTAVE_DOC_CACHE_FILE}}, or the command line argument\n\ |
|
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1291 @samp{--doc-cache-file NAME}.\n\ |
|
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1292 \n\ |
|
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1293 When called from inside a function with the \"local\" option, the variable is\n\ |
|
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1294 changed locally for the function and any subroutines it calls. The original\n\ |
|
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1295 variable value is restored when exiting the function.\n\ |
|
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1296 @seealso{lookfor, info_program, doc, help, makeinfo_program}\n\ |
| 8861 | 1297 @end deftypefn") |
| 1298 { | |
| 1299 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (doc_cache_file); | |
| 1300 } | |
| 1301 | |
|
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1302 DEFUN (texi_macros_file, args, nargout, |
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1303 "-*- texinfo -*-\n\ |
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1304 @deftypefn {Built-in Function} {@var{val} =} texi_macros_file ()\n\ |
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1305 @deftypefnx {Built-in Function} {@var{old_val} =} texi_macros_file (@var{new_val})\n\ |
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1306 @deftypefnx {Built-in Function} {} texi_macros_file (@var{new_val}, \"local\")\n\ |
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1307 Query or set the internal variable that specifies the name of the\n\ |
|
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1308 file containing Texinfo macros that are prepended to documentation strings\n\ |
|
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1309 before they are passed to makeinfo. The default value is \n\ |
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1310 @file{@var{octave-home}/share/octave/@var{version}/etc/macros.texi},\n\ |
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1311 in which @var{octave-home} is the root directory of the Octave installation,\n\ |
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1312 and @var{version} is the Octave version number.\n\ |
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1313 The default value may be overridden by the environment variable\n\ |
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1314 @w{@env{OCTAVE_TEXI_MACROS_FILE}}, or the command line argument\n\ |
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1315 @samp{--texi-macros-file NAME}.\n\ |
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1316 \n\ |
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1317 When called from inside a function with the \"local\" option, the variable is\n\ |
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1318 changed locally for the function and any subroutines it calls. The original\n\ |
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1319 variable value is restored when exiting the function.\n\ |
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1320 @seealso{makeinfo_program}\n\ |
|
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1321 @end deftypefn") |
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1322 { |
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1323 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (texi_macros_file); |
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1324 } |
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1325 |
| 5794 | 1326 DEFUN (info_file, args, nargout, |
| 1327 "-*- texinfo -*-\n\ | |
| 10840 | 1328 @deftypefn {Built-in Function} {@var{val} =} info_file ()\n\ |
| 5794 | 1329 @deftypefnx {Built-in Function} {@var{old_val} =} info_file (@var{new_val})\n\ |
|
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1330 @deftypefnx {Built-in Function} {} info_file (@var{new_val}, \"local\")\n\ |
| 5794 | 1331 Query or set the internal variable that specifies the name of the\n\ |
| 1332 Octave info file. The default value is\n\ | |
|
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1333 @file{@var{octave-home}/info/octave.info}, in\n\ |
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1334 which @var{octave-home} is the root directory of the Octave installation.\n\ |
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1335 The default value may be overridden by the environment variable\n\ |
| 10840 | 1336 @w{@env{OCTAVE_INFO_FILE}}, or the command line argument\n\ |
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1337 @samp{--info-file NAME}.\n\ |
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1338 \n\ |
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1339 When called from inside a function with the \"local\" option, the variable is\n\ |
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1340 changed locally for the function and any subroutines it calls. The original\n\ |
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1341 variable value is restored when exiting the function.\n\ |
| 5794 | 1342 @seealso{info_program, doc, help, makeinfo_program}\n\ |
| 1343 @end deftypefn") | |
| 2202 | 1344 { |
| 5794 | 1345 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (info_file); |
| 2202 | 1346 } |
| 1347 | |
| 5794 | 1348 DEFUN (info_program, args, nargout, |
| 1349 "-*- texinfo -*-\n\ | |
| 10840 | 1350 @deftypefn {Built-in Function} {@var{val} =} info_program ()\n\ |
| 5794 | 1351 @deftypefnx {Built-in Function} {@var{old_val} =} info_program (@var{new_val})\n\ |
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1352 @deftypefnx {Built-in Function} {} info_program (@var{new_val}, \"local\")\n\ |
| 5794 | 1353 Query or set the internal variable that specifies the name of the\n\ |
| 7096 | 1354 info program to run. The default value is\n\ |
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1355 @file{@var{octave-home}/libexec/octave/@var{version}/exec/@var{arch}/info}\n\ |
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1356 in which @var{octave-home} is the root directory of the Octave installation,\n\ |
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1357 @var{version} is the Octave version number, and @var{arch}\n\ |
| 3686 | 1358 is the system type (for example, @code{i686-pc-linux-gnu}). The\n\ |
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1359 default value may be overridden by the environment variable\n\ |
| 10840 | 1360 @w{@env{OCTAVE_INFO_PROGRAM}}, or the command line argument\n\ |
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1361 @samp{--info-program NAME}.\n\ |
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1362 \n\ |
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1363 When called from inside a function with the \"local\" option, the variable is\n\ |
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1364 changed locally for the function and any subroutines it calls. The original\n\ |
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1365 variable value is restored when exiting the function.\n\ |
| 5794 | 1366 @seealso{info_file, doc, help, makeinfo_program}\n\ |
| 1367 @end deftypefn") | |
| 1368 { | |
| 1369 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (info_program); | |
| 1370 } | |
| 3686 | 1371 |
| 5794 | 1372 DEFUN (makeinfo_program, args, nargout, |
| 1373 "-*- texinfo -*-\n\ | |
| 10840 | 1374 @deftypefn {Built-in Function} {@var{val} =} makeinfo_program ()\n\ |
| 5794 | 1375 @deftypefnx {Built-in Function} {@var{old_val} =} makeinfo_program (@var{new_val})\n\ |
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1376 @deftypefnx {Built-in Function} {} makeinfo_program (@var{new_val}, \"local\")\n\ |
| 5794 | 1377 Query or set the internal variable that specifies the name of the\n\ |
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1378 program that Octave runs to format help text containing\n\ |
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1379 Texinfo markup commands. The default value is @code{makeinfo}.\n\ |
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1380 \n\ |
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1381 When called from inside a function with the \"local\" option, the variable is\n\ |
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1382 changed locally for the function and any subroutines it calls. The original\n\ |
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1383 variable value is restored when exiting the function.\n\ |
|
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1384 @seealso{texi_macros_file, info_file, info_program, doc, help}\n\ |
| 5794 | 1385 @end deftypefn") |
| 1386 { | |
| 1387 return SET_NONEMPTY_INTERNAL_STRING_VARIABLE (makeinfo_program); | |
| 1388 } | |
| 2202 | 1389 |
| 5794 | 1390 DEFUN (suppress_verbose_help_message, args, nargout, |
| 1391 "-*- texinfo -*-\n\ | |
| 10840 | 1392 @deftypefn {Built-in Function} {@var{val} =} suppress_verbose_help_message ()\n\ |
| 5794 | 1393 @deftypefnx {Built-in Function} {@var{old_val} =} suppress_verbose_help_message (@var{new_val})\n\ |
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1394 @deftypefnx {Built-in Function} {} suppress_verbose_help_message (@var{new_val}, \"local\")\n\ |
| 7001 | 1395 Query or set the internal variable that controls whether Octave\n\ |
| 5794 | 1396 will add additional help information to the end of the output from\n\ |
| 3332 | 1397 the @code{help} command and usage messages for built-in commands.\n\ |
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1398 \n\ |
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1399 When called from inside a function with the \"local\" option, the variable is\n\ |
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1400 changed locally for the function and any subroutines it calls. The original\n\ |
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1401 variable value is restored when exiting the function.\n\ |
| 5794 | 1402 @end deftypefn") |
| 1403 { | |
| 1404 return SET_INTERNAL_VARIABLE (suppress_verbose_help_message); | |
| 2189 | 1405 } |