Mercurial > octave-nkf
annotate src/variables.cc @ 10846:a4f482e66b65
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author | Rik <octave@nomad.inbox5.com> |
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date | Sun, 01 Aug 2010 20:22:17 -0700 |
parents | 89f4d7e294cc |
children | 2d14817353a6 |
rev | line source |
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1 | 1 /* |
2 | |
7017 | 3 Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2002, |
8920 | 4 2003, 2004, 2005, 2006, 2007, 2008, 2009 John W. Eaton |
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5 Copyright (C) 2009, 2010 VZLU Prague |
1 | 6 |
7 This file is part of Octave. | |
8 | |
9 Octave is free software; you can redistribute it and/or modify it | |
10 under the terms of the GNU General Public License as published by the | |
7016 | 11 Free Software Foundation; either version 3 of the License, or (at your |
12 option) any later version. | |
1 | 13 |
14 Octave is distributed in the hope that it will be useful, but WITHOUT | |
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 for more details. | |
18 | |
19 You should have received a copy of the GNU General Public License | |
7016 | 20 along with Octave; see the file COPYING. If not, see |
21 <http://www.gnu.org/licenses/>. | |
1 | 22 |
23 */ | |
24 | |
240 | 25 #ifdef HAVE_CONFIG_H |
1192 | 26 #include <config.h> |
1 | 27 #endif |
28 | |
1468 | 29 #include <cstdio> |
1343 | 30 #include <cstring> |
605 | 31 |
7336 | 32 #include <iomanip> |
4207 | 33 #include <set> |
1728 | 34 #include <string> |
35 | |
2926 | 36 #include "file-stat.h" |
37 #include "oct-env.h" | |
4604 | 38 #include "file-ops.h" |
2926 | 39 #include "glob-match.h" |
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40 #include "regex-match.h" |
1755 | 41 #include "str-vec.h" |
42 | |
2492 | 43 #include <defaults.h> |
4435 | 44 #include "Cell.h" |
1352 | 45 #include "defun.h" |
46 #include "dirfns.h" | |
47 #include "error.h" | |
2205 | 48 #include "gripes.h" |
1352 | 49 #include "help.h" |
3165 | 50 #include "input.h" |
1352 | 51 #include "lex.h" |
5832 | 52 #include "load-path.h" |
2926 | 53 #include "oct-map.h" |
54 #include "oct-obj.h" | |
55 #include "ov.h" | |
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56 #include "ov-class.h" |
3933 | 57 #include "ov-usr-fcn.h" |
605 | 58 #include "pager.h" |
1352 | 59 #include "parse.h" |
2926 | 60 #include "symtab.h" |
2205 | 61 #include "toplev.h" |
1352 | 62 #include "unwind-prot.h" |
1 | 63 #include "utils.h" |
1352 | 64 #include "variables.h" |
2205 | 65 |
7336 | 66 // Defines layout for the whos/who -long command |
67 static std::string Vwhos_line_format | |
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68 = " %a:4; %ln:6; %cs:16:6:1; %rb:12; %lc:-1;\n"; |
195 | 69 |
6068 | 70 void |
6072 | 71 clear_mex_functions (void) |
6068 | 72 { |
7336 | 73 symbol_table::clear_mex_functions (); |
74 } | |
75 | |
76 void | |
77 clear_function (const std::string& nm) | |
78 { | |
79 symbol_table::clear_function (nm); | |
80 } | |
81 | |
82 void | |
83 clear_variable (const std::string& nm) | |
84 { | |
85 symbol_table::clear_variable (nm); | |
86 } | |
87 | |
88 void | |
89 clear_symbol (const std::string& nm) | |
90 { | |
91 symbol_table::clear_symbol (nm); | |
6068 | 92 } |
93 | |
593 | 94 // Attributes of variables and functions. |
95 | |
2086 | 96 // Is this octave_value a valid function? |
593 | 97 |
2975 | 98 octave_function * |
4345 | 99 is_valid_function (const std::string& fcn_name, |
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100 const std::string& warn_for, bool warn) |
593 | 101 { |
2975 | 102 octave_function *ans = 0; |
593 | 103 |
1755 | 104 if (! fcn_name.empty ()) |
3618 | 105 { |
7336 | 106 octave_value val = symbol_table::find_function (fcn_name); |
107 | |
108 if (val.is_defined ()) | |
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109 ans = val.function_value (true); |
3618 | 110 } |
593 | 111 |
7336 | 112 if (! ans && warn) |
113 error ("%s: the symbol `%s' is not valid as a function", | |
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114 warn_for.c_str (), fcn_name.c_str ()); |
593 | 115 |
116 return ans; | |
117 } | |
118 | |
2975 | 119 octave_function * |
4345 | 120 is_valid_function (const octave_value& arg, |
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121 const std::string& warn_for, bool warn) |
3178 | 122 { |
123 octave_function *ans = 0; | |
124 | |
3523 | 125 std::string fcn_name; |
3178 | 126 |
127 if (arg.is_string ()) | |
4700 | 128 { |
129 fcn_name = arg.string_value (); | |
3178 | 130 |
4700 | 131 if (! error_state) |
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132 ans = is_valid_function (fcn_name, warn_for, warn); |
4700 | 133 else if (warn) |
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134 error ("%s: expecting function name as argument", warn_for.c_str ()); |
4700 | 135 } |
3178 | 136 else if (warn) |
137 error ("%s: expecting function name as argument", warn_for.c_str ()); | |
138 | |
139 return ans; | |
140 } | |
141 | |
142 octave_function * | |
3523 | 143 extract_function (const octave_value& arg, const std::string& warn_for, |
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144 const std::string& fname, const std::string& header, |
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145 const std::string& trailer) |
2796 | 146 { |
2975 | 147 octave_function *retval = 0; |
2796 | 148 |
149 retval = is_valid_function (arg, warn_for, 0); | |
150 | |
151 if (! retval) | |
152 { | |
3523 | 153 std::string s = arg.string_value (); |
2796 | 154 |
3523 | 155 std::string cmd = header; |
2796 | 156 cmd.append (s); |
157 cmd.append (trailer); | |
158 | |
159 if (! error_state) | |
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160 { |
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161 int parse_status; |
2796 | 162 |
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163 eval_string (cmd, true, parse_status, 0); |
2796 | 164 |
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165 if (parse_status == 0) |
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166 { |
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167 retval = is_valid_function (fname, warn_for, 0); |
2796 | 168 |
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169 if (! retval) |
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170 { |
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171 error ("%s: `%s' is not valid as a function", |
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172 warn_for.c_str (), fname.c_str ()); |
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173 return retval; |
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174 } |
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175 |
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176 warning ("%s: passing function body as a string is obsolete." |
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177 " Please use anonymous functions.", warn_for.c_str ()); |
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178 } |
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179 else |
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180 error ("%s: `%s' is not valid as a function", |
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181 warn_for.c_str (), fname.c_str ()); |
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182 } |
2796 | 183 else |
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184 error ("%s: expecting first argument to be a string", |
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185 warn_for.c_str ()); |
2796 | 186 } |
187 | |
188 return retval; | |
189 } | |
190 | |
2921 | 191 string_vector |
3523 | 192 get_struct_elts (const std::string& text) |
2921 | 193 { |
194 int n = 1; | |
195 | |
196 size_t pos = 0; | |
197 | |
198 size_t len = text.length (); | |
199 | |
8021 | 200 while ((pos = text.find ('.', pos)) != std::string::npos) |
2921 | 201 { |
202 if (++pos == len) | |
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203 break; |
2921 | 204 |
205 n++; | |
206 } | |
207 | |
208 string_vector retval (n); | |
209 | |
210 pos = 0; | |
211 | |
212 for (int i = 0; i < n; i++) | |
213 { | |
4587 | 214 len = text.find ('.', pos); |
2921 | 215 |
8021 | 216 if (len != std::string::npos) |
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217 len -= pos; |
2921 | 218 |
219 retval[i] = text.substr (pos, len); | |
220 | |
8021 | 221 if (len != std::string::npos) |
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222 pos += len + 1; |
2921 | 223 } |
224 | |
225 return retval; | |
226 } | |
227 | |
4179 | 228 static inline bool |
229 is_variable (const std::string& name) | |
230 { | |
231 bool retval = false; | |
232 | |
233 if (! name.empty ()) | |
234 { | |
7336 | 235 octave_value val = symbol_table::varval (name); |
236 | |
237 retval = val.is_defined (); | |
4179 | 238 } |
239 | |
240 return retval; | |
241 } | |
242 | |
2921 | 243 string_vector |
3933 | 244 generate_struct_completions (const std::string& text, |
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245 std::string& prefix, std::string& hint) |
2921 | 246 { |
247 string_vector names; | |
248 | |
249 size_t pos = text.rfind ('.'); | |
250 | |
8021 | 251 if (pos != std::string::npos) |
2921 | 252 { |
253 if (pos == text.length ()) | |
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254 hint = ""; |
2921 | 255 else |
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256 hint = text.substr (pos+1); |
2921 | 257 |
258 prefix = text.substr (0, pos); | |
259 | |
4179 | 260 std::string base_name = prefix; |
261 | |
262 pos = base_name.find_first_of ("{(."); | |
2921 | 263 |
8021 | 264 if (pos != std::string::npos) |
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265 base_name = base_name.substr (0, pos); |
4143 | 266 |
4179 | 267 if (is_variable (base_name)) |
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268 { |
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269 int parse_status; |
4179 | 270 |
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271 unwind_protect frame; |
3935 | 272 |
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273 frame.protect_var (error_state); |
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274 frame.protect_var (warning_state); |
4452 | 275 |
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276 frame.protect_var (discard_error_messages); |
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277 frame.protect_var (discard_warning_messages); |
3935 | 278 |
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279 discard_error_messages = true; |
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280 discard_warning_messages = true; |
2921 | 281 |
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282 octave_value tmp = eval_string (prefix, true, parse_status); |
4179 | 283 |
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284 frame.run (); |
3935 | 285 |
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286 if (tmp.is_defined () && tmp.is_map ()) |
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287 names = tmp.map_keys (); |
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288 } |
4179 | 289 } |
2921 | 290 |
291 return names; | |
292 } | |
293 | |
5775 | 294 // FIXME -- this will have to be much smarter to work |
4179 | 295 // "correctly". |
296 | |
2921 | 297 bool |
3523 | 298 looks_like_struct (const std::string& text) |
2921 | 299 { |
4604 | 300 bool retval = (! text.empty () |
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301 && text != "." |
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302 && text.find_first_of (file_ops::dir_sep_chars ()) == std::string::npos |
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303 && text.find ("..") == std::string::npos |
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304 && text.rfind ('.') != std::string::npos); |
3968 | 305 |
4179 | 306 #if 0 |
3968 | 307 symbol_record *sr = curr_sym_tab->lookup (text); |
2963 | 308 |
3968 | 309 if (sr && ! sr->is_function ()) |
310 { | |
311 int parse_status; | |
2921 | 312 |
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313 unwind_protect frame; |
4143 | 314 |
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315 frame.protect_var (discard_error_messages); |
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316 frame.protect_var (error_state); |
4143 | 317 |
318 discard_error_messages = true; | |
319 | |
3968 | 320 octave_value tmp = eval_string (text, true, parse_status); |
321 | |
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322 frame.run (); |
4143 | 323 |
3968 | 324 retval = (tmp.is_defined () && tmp.is_map ()); |
325 } | |
4179 | 326 #endif |
3968 | 327 |
328 return retval; | |
2921 | 329 } |
2796 | 330 |
5930 | 331 static octave_value |
332 do_isglobal (const octave_value_list& args) | |
593 | 333 { |
4233 | 334 octave_value retval = false; |
593 | 335 |
712 | 336 int nargin = args.length (); |
337 | |
338 if (nargin != 1) | |
593 | 339 { |
5823 | 340 print_usage (); |
593 | 341 return retval; |
342 } | |
343 | |
3523 | 344 std::string name = args(0).string_value (); |
593 | 345 |
636 | 346 if (error_state) |
347 { | |
4028 | 348 error ("isglobal: expecting std::string argument"); |
636 | 349 return retval; |
350 } | |
351 | |
7336 | 352 return symbol_table::is_global (name); |
593 | 353 } |
354 | |
5930 | 355 DEFUN (isglobal, args, , |
356 "-*- texinfo -*-\n\ | |
357 @deftypefn {Built-in Function} {} isglobal (@var{name})\n\ | |
358 Return 1 if @var{name} is globally visible. Otherwise, return 0. For\n\ | |
359 example,\n\ | |
360 \n\ | |
361 @example\n\ | |
362 @group\n\ | |
363 global x\n\ | |
364 isglobal (\"x\")\n\ | |
365 @result{} 1\n\ | |
366 @end group\n\ | |
367 @end example\n\ | |
368 @end deftypefn") | |
369 { | |
370 return do_isglobal (args); | |
371 } | |
372 | |
373 DEFUN (is_global, args, , | |
374 "-*- texinfo -*-\n\ | |
375 @deftypefn {Built-in Function} {} isglobal (@var{name})\n\ | |
376 This function has been deprecated. Use isglobal instead.\n\ | |
377 @end deftypefn") | |
378 { | |
379 return do_isglobal (args); | |
380 } | |
381 | |
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382 static octave_value |
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383 safe_symbol_lookup (const std::string& symbol_name) |
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384 { |
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385 octave_value retval; |
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386 |
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387 unwind_protect frame; |
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388 |
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389 frame.protect_var (buffer_error_messages); |
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390 frame.protect_var (Vdebug_on_error); |
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391 frame.protect_var (Vdebug_on_warning); |
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392 |
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393 buffer_error_messages++; |
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394 Vdebug_on_error = false; |
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395 Vdebug_on_warning = false; |
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396 |
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397 retval = symbol_table::find (symbol_name); |
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398 |
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399 error_state = 0; |
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400 |
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401 return retval; |
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402 } |
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403 |
4016 | 404 int |
405 symbol_exist (const std::string& name, const std::string& type) | |
593 | 406 { |
4016 | 407 int retval = 0; |
636 | 408 |
3523 | 409 std::string struct_elts; |
410 std::string symbol_name = name; | |
1755 | 411 |
412 size_t pos = name.find ('.'); | |
413 | |
8021 | 414 if (pos != std::string::npos && pos > 0) |
1277 | 415 { |
1755 | 416 struct_elts = name.substr (pos+1); |
2790 | 417 symbol_name = name.substr (0, pos); |
1277 | 418 } |
419 | |
4009 | 420 // We shouldn't need to look in the global symbol table, since any |
421 // name that is visible in the current scope will be in the local | |
422 // symbol table. | |
423 | |
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424 octave_value val = safe_symbol_lookup (symbol_name); |
7336 | 425 |
426 if (val.is_defined ()) | |
1277 | 427 { |
4357 | 428 bool not_a_struct = struct_elts.empty (); |
7336 | 429 bool var_ok = not_a_struct /* || val.is_map_element (struct_elts) */; |
4357 | 430 |
4016 | 431 if (! retval |
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432 && var_ok |
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433 && (type == "any" || type == "var") |
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434 && (val.is_constant () || val.is_object () |
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435 || val.is_inline_function () || val.is_function_handle ())) |
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436 { |
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437 retval = 1; |
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438 } |
4016 | 439 |
440 if (! retval | |
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441 && (type == "any" || type == "builtin")) |
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442 { |
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443 if (not_a_struct && val.is_builtin_function ()) |
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444 { |
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445 retval = 5; |
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446 } |
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447 } |
4016 | 448 |
449 if (! retval | |
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450 && not_a_struct |
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451 && (type == "any" || type == "file") |
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452 && (val.is_user_function () || val.is_dld_function ())) |
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453 { |
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454 octave_function *f = val.function_value (true); |
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455 std::string s = f ? f->fcn_file_name () : std::string (); |
4016 | 456 |
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457 retval = s.empty () ? 103 : (val.is_user_function () ? 2 : 3); |
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458 } |
1421 | 459 } |
4016 | 460 |
5140 | 461 if (! (type == "var" || type == "builtin")) |
593 | 462 { |
5140 | 463 if (! retval) |
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464 { |
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465 std::string file_name = lookup_autoload (name); |
5484 | 466 |
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467 if (file_name.empty ()) |
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468 file_name = load_path::find_fcn (name); |
5140 | 469 |
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470 size_t len = file_name.length (); |
5140 | 471 |
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472 if (len > 0) |
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473 { |
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474 if (type == "any" || type == "file") |
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475 { |
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476 if (len > 4 && (file_name.substr (len-4) == ".oct" |
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477 || file_name.substr (len-4) == ".mex")) |
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478 retval = 3; |
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479 else |
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480 retval = 2; |
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481 } |
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482 } |
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483 } |
5140 | 484 |
485 if (! retval) | |
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486 { |
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487 std::string file_name = file_in_path (name, ""); |
5140 | 488 |
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489 if (file_name.empty ()) |
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490 file_name = name; |
5140 | 491 |
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492 file_stat fs (file_name); |
5140 | 493 |
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494 if (fs) |
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495 { |
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496 if ((type == "any" || type == "file") |
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497 && fs.is_reg ()) |
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498 { |
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499 retval = 2; |
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500 } |
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501 else if ((type == "any" || type == "dir") |
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502 && fs.is_dir ()) |
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503 { |
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504 retval = 7; |
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505 } |
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506 } |
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507 } |
593 | 508 } |
509 | |
510 return retval; | |
511 } | |
512 | |
4962 | 513 #define GET_IDX(LEN) \ |
514 static_cast<int> ((LEN-1) * static_cast<double> (rand ()) / RAND_MAX) | |
515 | |
4954 | 516 std::string |
517 unique_symbol_name (const std::string& basename) | |
518 { | |
4962 | 519 static const std::string alpha |
520 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; | |
521 | |
522 static size_t len = alpha.length (); | |
523 | |
524 std::string nm = basename + alpha[GET_IDX (len)]; | |
525 | |
526 size_t pos = nm.length (); | |
527 | |
528 if (nm.substr (0, 2) == "__") | |
529 nm.append ("__"); | |
530 | |
531 while (symbol_exist (nm, "any")) | |
532 nm.insert (pos++, 1, alpha[GET_IDX (len)]); | |
533 | |
534 return nm; | |
4954 | 535 } |
536 | |
4016 | 537 DEFUN (exist, args, , |
538 "-*- texinfo -*-\n\ | |
539 @deftypefn {Built-in Function} {} exist (@var{name}, @var{type})\n\ | |
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540 Return 1 if the name exists as a variable, 2 if the name is an\n\ |
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541 absolute file name, an ordinary file in Octave's @code{path}, or (after\n\ |
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542 appending @samp{.m}) a function file in Octave's @code{path}, 3 if the\n\ |
5864 | 543 name is a @samp{.oct} or @samp{.mex} file in Octave's @code{path},\n\ |
544 5 if the name is a built-in function, 7 if the name is a directory, or 103\n\ | |
4016 | 545 if the name is a function not associated with a file (entered on\n\ |
546 the command line).\n\ | |
547 \n\ | |
548 Otherwise, return 0.\n\ | |
549 \n\ | |
550 This function also returns 2 if a regular file called @var{name}\n\ | |
5814 | 551 exists in Octave's search path. If you want information about\n\ |
4016 | 552 other types of files, you should use some combination of the functions\n\ |
553 @code{file_in_path} and @code{stat} instead.\n\ | |
554 \n\ | |
555 If the optional argument @var{type} is supplied, check only for\n\ | |
556 symbols of the specified type. Valid types are\n\ | |
557 \n\ | |
558 @table @samp\n\ | |
559 @item \"var\"\n\ | |
560 Check only for variables.\n\ | |
10840 | 561 \n\ |
4016 | 562 @item \"builtin\"\n\ |
563 Check only for built-in functions.\n\ | |
10840 | 564 \n\ |
4016 | 565 @item \"file\"\n\ |
566 Check only for files.\n\ | |
10840 | 567 \n\ |
4016 | 568 @item \"dir\"\n\ |
569 Check only for directories.\n\ | |
570 @end table\n\ | |
571 @end deftypefn") | |
572 { | |
4233 | 573 octave_value retval = false; |
4016 | 574 |
575 int nargin = args.length (); | |
576 | |
577 if (nargin == 1 || nargin == 2) | |
578 { | |
579 std::string name = args(0).string_value (); | |
580 | |
581 if (! error_state) | |
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582 { |
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583 std::string type |
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584 = (nargin == 2) ? args(1).string_value () : std::string ("any"); |
4016 | 585 |
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586 if (! error_state) |
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587 retval = symbol_exist (name, type); |
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588 else |
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589 error ("exist: expecting second argument to be a string"); |
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590 } |
4016 | 591 else |
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592 error ("exist: expecting first argument to be a string"); |
4016 | 593 } |
594 else | |
5823 | 595 print_usage (); |
4016 | 596 |
597 return retval; | |
598 } | |
599 | |
2849 | 600 octave_value |
4988 | 601 lookup_function_handle (const std::string& nm) |
602 { | |
7336 | 603 octave_value val = symbol_table::varval (nm); |
604 | |
605 return val.is_function_handle () ? val : octave_value (); | |
4988 | 606 } |
607 | |
608 octave_value | |
5027 | 609 get_global_value (const std::string& nm, bool silent) |
2849 | 610 { |
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611 octave_value val = symbol_table::global_varval (nm); |
7336 | 612 |
613 if (val.is_undefined () && ! silent) | |
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614 error ("get_global_value: undefined symbol `%s'", nm.c_str ()); |
7336 | 615 |
616 return val; | |
2849 | 617 } |
618 | |
619 void | |
3523 | 620 set_global_value (const std::string& nm, const octave_value& val) |
2849 | 621 { |
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622 symbol_table::global_varref (nm) = val; |
2849 | 623 } |
624 | |
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625 octave_value |
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626 get_top_level_value (const std::string& nm, bool silent) |
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627 { |
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628 octave_value val = symbol_table::top_level_varval (nm); |
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629 |
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630 if (val.is_undefined () && ! silent) |
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631 error ("get_top_level_value: undefined symbol `%s'", nm.c_str ()); |
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632 |
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633 return val; |
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634 } |
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635 |
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636 void |
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637 set_top_level_value (const std::string& nm, const octave_value& val) |
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638 { |
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639 symbol_table::top_level_varref (nm) = val; |
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640 } |
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641 |
593 | 642 // Variable values. |
195 | 643 |
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644 static bool |
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645 wants_local_change (const octave_value_list& args, int& nargin) |
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646 { |
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647 bool retval = false; |
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648 |
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649 if (nargin == 2) |
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650 { |
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651 if (args(1).is_string () && args(1).string_value () == "local") |
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652 { |
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653 nargin = 1; |
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654 retval = true; |
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655 } |
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656 else |
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657 { |
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658 error_with_cfn ("expecting second argument to be \"local\""); |
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659 nargin = 0; |
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660 } |
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661 } |
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662 |
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663 return retval; |
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664 } |
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665 |
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666 template <class T> |
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667 bool try_local_protect (T& var) |
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668 { |
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669 octave_user_code *curr_usr_code = octave_call_stack::caller_user_code (); |
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670 octave_user_function *curr_usr_fcn = 0; |
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671 if (curr_usr_code && curr_usr_code->is_user_function ()) |
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672 curr_usr_fcn = dynamic_cast<octave_user_function *> (curr_usr_code); |
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673 |
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674 if (curr_usr_fcn && curr_usr_fcn->local_protect (var)) |
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675 return true; |
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676 else |
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677 return false; |
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678 } |
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679 |
5791 | 680 octave_value |
681 set_internal_variable (bool& var, const octave_value_list& args, | |
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682 int nargout, const char *nm) |
5791 | 683 { |
5794 | 684 octave_value retval; |
685 | |
5800 | 686 int nargin = args.length (); |
687 | |
688 if (nargout > 0 || nargin == 0) | |
5794 | 689 retval = var; |
5791 | 690 |
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691 if (wants_local_change (args, nargin)) |
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692 { |
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693 if (! try_local_protect (var)) |
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694 warning ("\"local\" has no effect outside a function"); |
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695 } |
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696 |
5791 | 697 if (nargin == 1) |
698 { | |
699 bool bval = args(0).bool_value (); | |
700 | |
701 if (! error_state) | |
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702 var = bval; |
5791 | 703 else |
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704 error ("%s: expecting arg to be a logical value", nm); |
5791 | 705 } |
706 else if (nargin > 1) | |
5823 | 707 print_usage (); |
5791 | 708 |
709 return retval; | |
710 } | |
711 | |
712 octave_value | |
5794 | 713 set_internal_variable (char& var, const octave_value_list& args, |
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714 int nargout, const char *nm) |
5791 | 715 { |
5794 | 716 octave_value retval; |
717 | |
5800 | 718 int nargin = args.length (); |
719 | |
720 if (nargout > 0 || nargin == 0) | |
5794 | 721 retval = var; |
5791 | 722 |
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723 if (wants_local_change (args, nargin)) |
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724 { |
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725 if (! try_local_protect (var)) |
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726 warning ("\"local\" has no effect outside a function"); |
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727 } |
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728 |
5791 | 729 if (nargin == 1) |
730 { | |
731 std::string sval = args(0).string_value (); | |
732 | |
733 if (! error_state) | |
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734 { |
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735 switch (sval.length ()) |
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736 { |
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737 case 1: |
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738 var = sval[0]; |
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739 break; |
5794 | 740 |
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741 case 0: |
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742 var = '\0'; |
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743 break; |
5794 | 744 |
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745 default: |
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746 error ("%s: argument must be a single character", nm); |
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747 break; |
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748 } |
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749 } |
5794 | 750 else |
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751 error ("%s: argument must be a single character", nm); |
5794 | 752 } |
753 else if (nargin > 1) | |
5823 | 754 print_usage (); |
5794 | 755 |
756 return retval; | |
757 } | |
758 | |
759 octave_value | |
760 set_internal_variable (int& var, const octave_value_list& args, | |
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761 int nargout, const char *nm, |
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762 int minval, int maxval) |
5794 | 763 { |
764 octave_value retval; | |
765 | |
5800 | 766 int nargin = args.length (); |
767 | |
768 if (nargout > 0 || nargin == 0) | |
5794 | 769 retval = var; |
770 | |
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771 if (wants_local_change (args, nargin)) |
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772 { |
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773 if (! try_local_protect (var)) |
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774 warning ("\"local\" has no effect outside a function"); |
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775 } |
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776 |
5794 | 777 if (nargin == 1) |
778 { | |
779 int ival = args(0).int_value (); | |
780 | |
781 if (! error_state) | |
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782 { |
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783 if (ival < minval) |
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784 error ("%s: expecting arg to be greater than %d", nm, minval); |
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785 else if (ival > maxval) |
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786 error ("%s: expecting arg to be less than or equal to %d", |
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787 nm, maxval); |
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788 else |
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789 var = ival; |
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790 } |
5794 | 791 else |
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792 error ("%s: expecting arg to be an integer value", nm); |
5794 | 793 } |
794 else if (nargin > 1) | |
5823 | 795 print_usage (); |
5794 | 796 |
797 return retval; | |
798 } | |
799 | |
800 octave_value | |
801 set_internal_variable (double& var, const octave_value_list& args, | |
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802 int nargout, const char *nm, |
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803 double minval, double maxval) |
5794 | 804 { |
805 octave_value retval; | |
806 | |
5800 | 807 int nargin = args.length (); |
808 | |
809 if (nargout > 0 || nargin == 0) | |
5794 | 810 retval = var; |
811 | |
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812 if (wants_local_change (args, nargin)) |
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813 { |
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|
814 if (! try_local_protect (var)) |
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|
815 warning ("\"local\" has no effect outside a function"); |
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diff
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|
816 } |
9cd5aa83fa62
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Jaroslav Hajek <highegg@gmail.com>
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diff
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|
817 |
5794 | 818 if (nargin == 1) |
819 { | |
820 double dval = args(0).scalar_value (); | |
821 | |
822 if (! error_state) | |
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untabify src C++ source files
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823 { |
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824 if (dval < minval) |
57a59eae83cc
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825 error ("%s: expecting arg to be greater than %g", minval); |
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untabify src C++ source files
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826 else if (dval > maxval) |
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|
827 error ("%s: expecting arg to be less than or equal to %g", maxval); |
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|
828 else |
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829 var = dval; |
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untabify src C++ source files
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|
830 } |
5794 | 831 else |
10315
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|
832 error ("%s: expecting arg to be a scalar value", nm); |
5794 | 833 } |
834 else if (nargin > 1) | |
5823 | 835 print_usage (); |
5794 | 836 |
837 return retval; | |
838 } | |
839 | |
840 octave_value | |
841 set_internal_variable (std::string& var, const octave_value_list& args, | |
10315
57a59eae83cc
untabify src C++ source files
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|
842 int nargout, const char *nm, bool empty_ok) |
5794 | 843 { |
844 octave_value retval; | |
845 | |
5800 | 846 int nargin = args.length (); |
847 | |
848 if (nargout > 0 || nargin == 0) | |
5794 | 849 retval = var; |
850 | |
10637
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Jaroslav Hajek <highegg@gmail.com>
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|
851 if (wants_local_change (args, nargin)) |
9cd5aa83fa62
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|
852 { |
9cd5aa83fa62
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|
853 if (! try_local_protect (var)) |
9cd5aa83fa62
implement 'local' parameter to pseudo-variables
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
854 warning ("\"local\" has no effect outside a function"); |
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diff
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|
855 } |
9cd5aa83fa62
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|
856 |
5794 | 857 if (nargin == 1) |
858 { | |
859 std::string sval = args(0).string_value (); | |
860 | |
861 if (! error_state) | |
10315
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|
862 { |
57a59eae83cc
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|
863 if (empty_ok || ! sval.empty ()) |
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|
864 var = sval; |
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|
865 else |
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|
866 error ("%s: value must not be empty", nm); |
57a59eae83cc
untabify src C++ source files
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|
867 } |
5791 | 868 else |
10315
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untabify src C++ source files
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diff
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|
869 error ("%s: expecting arg to be a character string", nm); |
5791 | 870 } |
871 else if (nargin > 1) | |
5823 | 872 print_usage (); |
1 | 873 |
874 return retval; | |
875 } | |
876 | |
10638
e1559a8a60b4
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|
877 octave_value |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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diff
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|
878 set_internal_variable (int& var, const octave_value_list& args, |
10640
5c594472f75e
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Jaroslav Hajek <highegg@gmail.com>
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diff
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|
879 int nargout, const char *nm, const char **choices) |
10638
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diff
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|
880 { |
e1559a8a60b4
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diff
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|
881 octave_value retval; |
10640
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|
882 int nchoices = 0; |
5c594472f75e
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883 while (choices[nchoices] != 0) |
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|
884 nchoices++; |
10638
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|
885 |
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|
886 int nargin = args.length (); |
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887 assert (var < nchoices); |
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|
888 |
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diff
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|
889 if (nargout > 0 || nargin == 0) |
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|
890 retval = choices[var]; |
e1559a8a60b4
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|
891 |
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|
892 if (wants_local_change (args, nargin)) |
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diff
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|
893 { |
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diff
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|
894 if (! try_local_protect (var)) |
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Jaroslav Hajek <highegg@gmail.com>
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diff
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|
895 warning ("\"local\" has no effect outside a function"); |
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diff
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|
896 } |
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|
897 |
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|
898 if (nargin == 1) |
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|
899 { |
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changeset
|
900 std::string sval = args(0).string_value (); |
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diff
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|
901 |
e1559a8a60b4
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diff
changeset
|
902 if (! error_state) |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
903 { |
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10637
diff
changeset
|
904 int i = 0; |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
905 for (; i < nchoices; i++) |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
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|
906 { |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
907 if (sval == choices[i]) |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
parents:
10637
diff
changeset
|
908 { |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
909 var = i; |
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
910 break; |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
911 } |
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
912 } |
e1559a8a60b4
general mechanism for string enum variables
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
913 if (i == nchoices) |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
914 error ("%s: value not allowed (\"%s\")", nm, sval.c_str ()); |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
parents:
10637
diff
changeset
|
915 } |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
916 else |
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general mechanism for string enum variables
Jaroslav Hajek <highegg@gmail.com>
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10637
diff
changeset
|
917 error ("%s: expecting arg to be a character string", nm); |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
parents:
10637
diff
changeset
|
918 } |
e1559a8a60b4
general mechanism for string enum variables
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
919 else if (nargin > 1) |
e1559a8a60b4
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diff
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|
920 print_usage (); |
e1559a8a60b4
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diff
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|
921 |
e1559a8a60b4
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diff
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|
922 return retval; |
e1559a8a60b4
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10637
diff
changeset
|
923 } |
e1559a8a60b4
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Jaroslav Hajek <highegg@gmail.com>
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diff
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|
924 |
7336 | 925 struct |
926 whos_parameter | |
195 | 927 { |
7336 | 928 char command; |
929 char modifier; | |
930 int parameter_length; | |
931 int first_parameter_length; | |
932 int balance; | |
933 std::string text; | |
934 std::string line; | |
935 }; | |
936 | |
937 static void | |
938 print_descriptor (std::ostream& os, std::list<whos_parameter> params) | |
939 { | |
940 // This method prints a line of information on a given symbol | |
941 std::list<whos_parameter>::iterator i = params.begin (); | |
942 std::ostringstream param_buf; | |
943 | |
944 while (i != params.end ()) | |
195 | 945 { |
7336 | 946 whos_parameter param = *i; |
947 | |
948 if (param.command != '\0') | |
949 { | |
10315
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|
950 // Do the actual printing |
57a59eae83cc
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|
951 switch (param.modifier) |
57a59eae83cc
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|
952 { |
57a59eae83cc
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|
953 case 'l': |
57a59eae83cc
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|
954 os << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); |
57a59eae83cc
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955 param_buf << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); |
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|
956 break; |
7336 | 957 |
10315
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958 case 'r': |
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|
959 os << std::setiosflags (std::ios::right) << std::setw (param.parameter_length); |
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960 param_buf << std::setiosflags (std::ios::right) << std::setw (param.parameter_length); |
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|
961 break; |
7336 | 962 |
10315
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|
963 case 'c': |
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964 if (param.command != 's') |
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|
965 { |
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|
966 os << std::setiosflags (std::ios::left) |
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967 << std::setw (param.parameter_length); |
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|
968 param_buf << std::setiosflags (std::ios::left) |
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969 << std::setw (param.parameter_length); |
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|
970 } |
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|
971 break; |
7336 | 972 |
10315
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|
973 default: |
57a59eae83cc
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974 os << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); |
57a59eae83cc
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|
975 param_buf << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); |
57a59eae83cc
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|
976 } |
7336 | 977 |
10315
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|
978 if (param.command == 's' && param.modifier == 'c') |
57a59eae83cc
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|
979 { |
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|
980 int a, b; |
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|
981 |
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982 if (param.modifier == 'c') |
57a59eae83cc
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|
983 { |
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|
984 a = param.first_parameter_length - param.balance; |
57a59eae83cc
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|
985 a = (a < 0 ? 0 : a); |
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|
986 b = param.parameter_length - a - param.text . length (); |
57a59eae83cc
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987 b = (b < 0 ? 0 : b); |
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|
988 os << std::setiosflags (std::ios::left) << std::setw (a) |
57a59eae83cc
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|
989 << "" << std::resetiosflags (std::ios::left) << param.text |
57a59eae83cc
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|
990 << std::setiosflags (std::ios::left) |
57a59eae83cc
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changeset
|
991 << std::setw (b) << "" |
57a59eae83cc
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992 << std::resetiosflags (std::ios::left); |
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993 param_buf << std::setiosflags (std::ios::left) << std::setw (a) |
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994 << "" << std::resetiosflags (std::ios::left) << param.line |
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995 << std::setiosflags (std::ios::left) |
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996 << std::setw (b) << "" |
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|
997 << std::resetiosflags (std::ios::left); |
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|
998 } |
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|
999 } |
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|
1000 else |
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|
1001 { |
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|
1002 os << param.text; |
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|
1003 param_buf << param.line; |
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1004 } |
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1005 os << std::resetiosflags (std::ios::left) |
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1006 << std::resetiosflags (std::ios::right); |
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1007 param_buf << std::resetiosflags (std::ios::left) |
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1008 << std::resetiosflags (std::ios::right); |
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1009 i++; |
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1010 } |
7336 | 1011 else |
10315
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1012 { |
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|
1013 os << param.text; |
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1014 param_buf << param.line; |
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|
1015 i++; |
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1016 } |
195 | 1017 } |
7336 | 1018 |
1019 os << param_buf.str (); | |
195 | 1020 } |
1021 | |
9704
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1022 // FIXME -- This is a bit of a kluge. We'd like to just use val.dims() |
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|
1023 // and if val is an object, expect that dims will call size if it is |
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1024 // overloaded by a user-defined method. But there are currently some |
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1025 // unresolved const issues that prevent that solution from working. |
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|
1026 |
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|
1027 std::string |
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|
1028 get_dims_str (const octave_value& val) |
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|
1029 { |
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|
1030 octave_value tmp = val; |
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|
1031 |
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|
1032 Matrix sz = tmp.size (); |
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|
1033 |
10350
12884915a8e4
merge MArray classes & improve Array interface
Jaroslav Hajek <highegg@gmail.com>
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diff
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|
1034 dim_vector dv = dim_vector::alloc (sz.numel ()); |
9704
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|
1035 |
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|
1036 for (octave_idx_type i = 0; i < dv.length (); i++) |
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|
1037 dv(i) = sz(i); |
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|
1038 |
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|
1039 return dv.str (); |
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|
1040 } |
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|
1041 |
7586
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diff
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|
1042 class |
84122fb29c75
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diff
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|
1043 symbol_info_list |
593 | 1044 { |
7586
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diff
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|
1045 private: |
84122fb29c75
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diff
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|
1046 struct symbol_info |
84122fb29c75
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diff
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|
1047 { |
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|
1048 symbol_info (const symbol_table::symbol_record& sr, |
10315
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|
1049 const std::string& expr_str = std::string (), |
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1050 const octave_value& expr_val = octave_value ()) |
7586
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1051 : name (expr_str.empty () ? sr.name () : expr_str), |
10315
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|
1052 is_automatic (sr.is_automatic ()), |
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1053 is_formal (sr.is_formal ()), |
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|
1054 is_global (sr.is_global ()), |
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1055 is_persistent (sr.is_persistent ()), |
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1056 varval (expr_val.is_undefined () ? sr.varval () : expr_val) |
7586
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|
1057 { } |
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|
1058 |
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|
1059 void display_line (std::ostream& os, |
10315
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|
1060 const std::list<whos_parameter>& params) const |
593 | 1061 { |
9704
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|
1062 std::string dims_str = get_dims_str (varval); |
7586
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|
1063 |
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1064 std::list<whos_parameter>::const_iterator i = params.begin (); |
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|
1065 |
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|
1066 while (i != params.end ()) |
10315
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|
1067 { |
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|
1068 whos_parameter param = *i; |
7586
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|
1069 |
10315
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1070 if (param.command != '\0') |
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|
1071 { |
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|
1072 // Do the actual printing. |
7586
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|
1073 |
10315
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1074 switch (param.modifier) |
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|
1075 { |
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|
1076 case 'l': |
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1077 os << std::setiosflags (std::ios::left) |
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1078 << std::setw (param.parameter_length); |
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|
1079 break; |
7586
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|
1080 |
10315
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1081 case 'r': |
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1082 os << std::setiosflags (std::ios::right) |
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1083 << std::setw (param.parameter_length); |
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|
1084 break; |
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|
1085 |
10315
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1086 case 'c': |
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1087 if (param.command == 's') |
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1088 { |
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1089 int front = param.first_parameter_length |
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1090 - dims_str.find ('x'); |
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1091 int back = param.parameter_length |
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1092 - dims_str.length () |
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|
1093 - front; |
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1094 front = (front > 0) ? front : 0; |
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1095 back = (back > 0) ? back : 0; |
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1096 |
10315
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1097 os << std::setiosflags (std::ios::left) |
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1098 << std::setw (front) |
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|
1099 << "" |
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1100 << std::resetiosflags (std::ios::left) |
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1101 << dims_str |
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1102 << std::setiosflags (std::ios::left) |
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1103 << std::setw (back) |
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1104 << "" |
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1105 << std::resetiosflags (std::ios::left); |
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|
1106 } |
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1107 else |
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1108 { |
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1109 os << std::setiosflags (std::ios::left) |
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1110 << std::setw (param.parameter_length); |
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|
1111 } |
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|
1112 break; |
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|
1113 |
10315
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|
1114 default: |
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1115 error ("whos_line_format: modifier `%c' unknown", |
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|
1116 param.modifier); |
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|
1117 |
10315
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1118 os << std::setiosflags (std::ios::right) |
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1119 << std::setw (param.parameter_length); |
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1120 } |
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1121 |
10315
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|
1122 switch (param.command) |
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|
1123 { |
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|
1124 case 'a': |
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|
1125 { |
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|
1126 char tmp[5]; |
7586
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|
1127 |
10315
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1128 tmp[0] = (is_automatic ? 'a' : ' '); |
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1129 tmp[1] = (is_formal ? 'f' : ' '); |
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1130 tmp[2] = (is_global ? 'g' : ' '); |
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untabify src C++ source files
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1131 tmp[3] = (is_persistent ? 'p' : ' '); |
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untabify src C++ source files
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|
1132 tmp[4] = 0; |
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|
1133 |
10315
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|
1134 os << tmp; |
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|
1135 } |
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|
1136 break; |
7586
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|
1137 |
10315
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|
1138 case 'b': |
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1139 os << varval.byte_size (); |
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|
1140 break; |
7586
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|
1141 |
10315
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|
1142 case 'c': |
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1143 os << varval.class_name (); |
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|
1144 break; |
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|
1145 |
10315
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|
1146 case 'e': |
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1147 os << varval.capacity (); |
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|
1148 break; |
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|
1149 |
10315
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|
1150 case 'n': |
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|
1151 os << name; |
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|
1152 break; |
7586
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|
1153 |
10315
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|
1154 case 's': |
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1155 if (param.modifier != 'c') |
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|
1156 os << dims_str; |
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|
1157 break; |
7586
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diff
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|
1158 |
10315
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diff
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|
1159 case 't': |
57a59eae83cc
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|
1160 os << varval.type_name (); |
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untabify src C++ source files
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diff
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|
1161 break; |
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diff
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|
1162 |
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|
1163 default: |
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|
1164 error ("whos_line_format: command `%c' unknown", |
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diff
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|
1165 param.command); |
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|
1166 } |
7586
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|
1167 |
10315
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|
1168 os << std::resetiosflags (std::ios::left) |
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|
1169 << std::resetiosflags (std::ios::right); |
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|
1170 i++; |
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|
1171 } |
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|
1172 else |
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|
1173 { |
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|
1174 os << param.text; |
57a59eae83cc
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|
1175 i++; |
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|
1176 } |
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|
1177 } |
593 | 1178 } |
7586
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|
1179 |
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diff
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|
1180 std::string name; |
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diff
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|
1181 bool is_automatic; |
84122fb29c75
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diff
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|
1182 bool is_formal; |
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diff
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|
1183 bool is_global; |
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diff
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|
1184 bool is_persistent; |
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diff
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|
1185 octave_value varval; |
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diff
changeset
|
1186 }; |
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diff
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|
1187 |
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|
1188 public: |
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diff
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|
1189 symbol_info_list (void) : lst () { } |
84122fb29c75
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diff
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|
1190 |
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diff
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|
1191 symbol_info_list (const symbol_info_list& sil) : lst (sil.lst) { } |
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diff
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|
1192 |
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|
1193 symbol_info_list& operator = (const symbol_info_list& sil) |
84122fb29c75
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7531
diff
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|
1194 { |
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diff
changeset
|
1195 if (this != &sil) |
84122fb29c75
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diff
changeset
|
1196 lst = sil.lst; |
84122fb29c75
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diff
changeset
|
1197 |
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diff
changeset
|
1198 return *this; |
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diff
changeset
|
1199 } |
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diff
changeset
|
1200 |
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diff
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|
1201 ~symbol_info_list (void) { } |
84122fb29c75
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diff
changeset
|
1202 |
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diff
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|
1203 void append (const symbol_table::symbol_record& sr) |
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diff
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|
1204 { |
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diff
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|
1205 lst.push_back (symbol_info (sr)); |
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7531
diff
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|
1206 } |
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diff
changeset
|
1207 |
84122fb29c75
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diff
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|
1208 void append (const symbol_table::symbol_record& sr, |
10315
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|
1209 const std::string& expr_str, |
57a59eae83cc
untabify src C++ source files
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|
1210 const octave_value& expr_val) |
7586
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diff
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|
1211 { |
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diff
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|
1212 lst.push_back (symbol_info (sr, expr_str, expr_val)); |
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diff
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|
1213 } |
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changeset
|
1214 |
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|
1215 size_t size (void) const { return lst.size (); } |
84122fb29c75
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diff
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|
1216 |
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|
1217 bool empty (void) const { return lst.empty (); } |
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|
1218 |
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|
1219 Octave_map |
84122fb29c75
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|
1220 map_value (const std::string& caller_function_name, int nesting_level) const |
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|
1221 { |
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|
1222 size_t len = lst.size (); |
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|
1223 |
9732
b4fdfee405b5
remove ArrayN<T> + fix nonhom. diag-scalar ops
Jaroslav Hajek <highegg@gmail.com>
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diff
changeset
|
1224 Cell name_info (len, 1); |
b4fdfee405b5
remove ArrayN<T> + fix nonhom. diag-scalar ops
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|
1225 Cell size_info (len, 1); |
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|
1226 Cell bytes_info (len, 1); |
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|
1227 Cell class_info (len, 1); |
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|
1228 Cell global_info (len, 1); |
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|
1229 Cell sparse_info (len, 1); |
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|
1230 Cell complex_info (len, 1); |
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diff
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|
1231 Cell nesting_info (len, 1); |
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diff
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|
1232 Cell persistent_info (len, 1); |
7586
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|
1233 |
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|
1234 std::list<symbol_info>::const_iterator p = lst.begin (); |
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|
1235 |
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|
1236 for (size_t j = 0; j < len; j++) |
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|
1237 { |
10315
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|
1238 const symbol_info& si = *p++; |
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|
1239 |
10315
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|
1240 Octave_map ni; |
7586
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|
1241 |
10315
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|
1242 ni.assign ("function", caller_function_name); |
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|
1243 ni.assign ("level", nesting_level); |
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|
1244 |
10315
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|
1245 name_info(j) = si.name; |
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|
1246 global_info(j) = si.is_global; |
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|
1247 persistent_info(j) = si.is_persistent; |
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|
1248 |
10315
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changeset
|
1249 octave_value val = si.varval; |
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1250 |
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1251 size_info(j) = val.size (); |
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1252 bytes_info(j) = val.byte_size (); |
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1253 class_info(j) = val.class_name (); |
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1254 sparse_info(j) = val.is_sparse_type (); |
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1255 complex_info(j) = val.is_complex_type (); |
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1256 nesting_info(j) = ni; |
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1257 } |
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1258 |
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1259 Octave_map info; |
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1260 |
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1261 info.assign ("name", name_info); |
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1262 info.assign ("size", size_info); |
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1263 info.assign ("bytes", bytes_info); |
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1264 info.assign ("class", class_info); |
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1265 info.assign ("global", global_info); |
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1266 info.assign ("sparse", sparse_info); |
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1267 info.assign ("complex", complex_info); |
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1268 info.assign ("nesting", nesting_info); |
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1269 info.assign ("persistent", persistent_info); |
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1270 |
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1271 return info; |
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1272 } |
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1273 |
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1274 void display (std::ostream& os) |
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1275 { |
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1276 if (! lst.empty ()) |
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1277 { |
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1278 size_t bytes = 0; |
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1279 size_t elements = 0; |
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1280 |
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1281 std::list<whos_parameter> params = parse_whos_line_format (); |
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1282 |
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1283 print_descriptor (os, params); |
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1284 |
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1285 octave_stdout << "\n"; |
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1286 |
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1287 for (std::list<symbol_info>::const_iterator p = lst.begin (); |
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1288 p != lst.end (); p++) |
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1289 { |
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1290 p->display_line (os, params); |
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1291 |
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1292 octave_value val = p->varval; |
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1293 |
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1294 elements += val.capacity (); |
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1295 bytes += val.byte_size (); |
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1296 } |
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1297 |
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1298 os << "\nTotal is " << elements |
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1299 << (elements == 1 ? " element" : " elements") |
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1300 << " using " << bytes << (bytes == 1 ? " byte" : " bytes") |
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1301 << "\n"; |
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1302 } |
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1303 } |
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1304 |
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1305 // Parse the string whos_line_format, and return a parameter list, |
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1306 // containing all information needed to print the given |
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1307 // attributtes of the symbols. |
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1308 std::list<whos_parameter> parse_whos_line_format (void) |
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1309 { |
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1310 int idx; |
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1311 size_t format_len = Vwhos_line_format.length (); |
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1312 char garbage; |
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1313 std::list<whos_parameter> params; |
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1314 |
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1315 size_t bytes1; |
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1316 int elements1; |
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1317 |
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1318 std::string param_string = "abcenst"; |
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1319 Array<int> param_length (dim_vector (param_string.length (), 1)); |
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1320 Array<std::string> param_names (dim_vector (param_string.length (), 1)); |
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1321 size_t pos_a, pos_b, pos_c, pos_e, pos_n, pos_s, pos_t; |
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1322 |
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1323 pos_a = param_string.find ('a'); // Attributes |
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1324 pos_b = param_string.find ('b'); // Bytes |
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1325 pos_c = param_string.find ('c'); // Class |
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1326 pos_e = param_string.find ('e'); // Elements |
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1327 pos_n = param_string.find ('n'); // Name |
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1328 pos_s = param_string.find ('s'); // Size |
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1329 pos_t = param_string.find ('t'); // Type |
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1330 |
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1331 param_names(pos_a) = "Attr"; |
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1332 param_names(pos_b) = "Bytes"; |
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1333 param_names(pos_c) = "Class"; |
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1334 param_names(pos_e) = "Elements"; |
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1335 param_names(pos_n) = "Name"; |
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1336 param_names(pos_s) = "Size"; |
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1337 param_names(pos_t) = "Type"; |
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1338 |
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1339 for (size_t i = 0; i < param_string.length (); i++) |
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1340 param_length(i) = param_names(i) . length (); |
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1341 |
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1342 // Calculating necessary spacing for name column, |
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1343 // bytes column, elements column and class column |
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1344 |
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1345 for (std::list<symbol_info>::const_iterator p = lst.begin (); |
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1346 p != lst.end (); p++) |
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1347 { |
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1348 std::stringstream ss1, ss2; |
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1349 std::string str; |
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1350 |
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1351 str = p->name; |
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1352 param_length(pos_n) = ((str.length () |
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1353 > static_cast<size_t> (param_length(pos_n))) |
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1354 ? str.length () : param_length(pos_n)); |
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1355 |
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1356 octave_value val = p->varval; |
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1357 |
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1358 str = val.type_name (); |
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1359 param_length(pos_t) = ((str.length () |
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1360 > static_cast<size_t> (param_length(pos_t))) |
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1361 ? str.length () : param_length(pos_t)); |
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1362 |
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1363 elements1 = val.capacity (); |
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1364 ss1 << elements1; |
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1365 str = ss1.str (); |
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1366 param_length(pos_e) = ((str.length () |
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1367 > static_cast<size_t> (param_length(pos_e))) |
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1368 ? str.length () : param_length(pos_e)); |
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1369 |
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1370 bytes1 = val.byte_size (); |
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1371 ss2 << bytes1; |
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1372 str = ss2.str (); |
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1373 param_length(pos_b) = ((str.length () |
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1374 > static_cast<size_t> (param_length(pos_b))) |
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1375 ? str.length () : param_length (pos_b)); |
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1376 } |
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|
1377 |
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1378 idx = 0; |
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1379 while (static_cast<size_t> (idx) < format_len) |
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1380 { |
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1381 whos_parameter param; |
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1382 param.command = '\0'; |
7586
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1383 |
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1384 if (Vwhos_line_format[idx] == '%') |
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1385 { |
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1386 bool error_encountered = false; |
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1387 param.modifier = 'r'; |
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1388 param.parameter_length = 0; |
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1389 |
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1390 int a = 0, b = -1, balance = 1; |
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1391 unsigned int items; |
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|
1392 size_t pos; |
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1393 std::string cmd; |
7586
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1394 |
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1395 // Parse one command from whos_line_format |
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1396 cmd = Vwhos_line_format.substr (idx, Vwhos_line_format.length ()); |
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1397 pos = cmd.find (';'); |
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1398 if (pos != std::string::npos) |
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1399 cmd = cmd.substr (0, pos+1); |
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1400 else |
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1401 error ("parameter without ; in whos_line_format"); |
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1402 |
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1403 idx += cmd.length (); |
7586
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1404 |
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1405 // FIXME -- use iostream functions instead of sscanf! |
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1406 |
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1407 if (cmd.find_first_of ("crl") != 1) |
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1408 items = sscanf (cmd.c_str (), "%c%c:%d:%d:%d;", |
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1409 &garbage, ¶m.command, &a, &b, &balance); |
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1410 else |
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1411 items = sscanf (cmd.c_str (), "%c%c%c:%d:%d:%d;", |
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1412 &garbage, ¶m.modifier, ¶m.command, |
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1413 &a, &b, &balance) - 1; |
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1414 |
10315
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1415 if (items < 2) |
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|
1416 { |
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1417 error ("whos_line_format: parameter structure without command in whos_line_format"); |
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1418 error_encountered = true; |
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|
1419 } |
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|
1420 |
10315
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1421 // Insert data into parameter |
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1422 param.first_parameter_length = 0; |
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1423 pos = param_string.find (param.command); |
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1424 if (pos != std::string::npos) |
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|
1425 { |
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|
1426 param.parameter_length = param_length(pos); |
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1427 param.text = param_names(pos); |
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|
1428 param.line.assign (param_names(pos).length (), '='); |
7586
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|
1429 |
10315
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|
1430 param.parameter_length = (a > param.parameter_length |
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1431 ? a : param.parameter_length); |
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|
1432 if (param.command == 's' && param.modifier == 'c' && b > 0) |
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|
1433 param.first_parameter_length = b; |
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|
1434 } |
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|
1435 else |
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|
1436 { |
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|
1437 error ("whos_line_format: '%c' is not a command", |
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|
1438 param.command); |
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|
1439 error_encountered = true; |
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|
1440 } |
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|
1441 |
10315
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|
1442 if (param.command == 's') |
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|
1443 { |
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|
1444 // Have to calculate space needed for printing |
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1445 // matrix dimensions Space needed for Size column is |
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1446 // hard to determine in prior, because it depends on |
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1447 // dimensions to be shown. That is why it is |
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1448 // recalculated for each Size-command int first, |
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|
1449 // rest = 0, total; |
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|
1450 int rest = 0; |
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|
1451 int first = param.first_parameter_length; |
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|
1452 int total = param.parameter_length; |
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|
1453 |
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1454 for (std::list<symbol_info>::const_iterator p = lst.begin (); |
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1455 p != lst.end (); p++) |
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|
1456 { |
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|
1457 octave_value val = p->varval; |
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1458 std::string dims_str = get_dims_str (val); |
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1459 int first1 = dims_str.find ('x'); |
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1460 int total1 = dims_str.length (); |
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1461 int rest1 = total1 - first1; |
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1462 rest = (rest1 > rest ? rest1 : rest); |
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1463 first = (first1 > first ? first1 : first); |
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1464 total = (total1 > total ? total1 : total); |
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|
1465 } |
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|
1466 |
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1467 if (param.modifier == 'c') |
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|
1468 { |
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|
1469 if (first < balance) |
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|
1470 first += balance - first; |
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|
1471 if (rest + balance < param.parameter_length) |
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1472 rest += param.parameter_length - rest - balance; |
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|
1473 |
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|
1474 param.parameter_length = first + rest; |
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|
1475 param.first_parameter_length = first; |
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|
1476 param.balance = balance; |
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|
1477 } |
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|
1478 else |
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|
1479 { |
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|
1480 param.parameter_length = total; |
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|
1481 param.first_parameter_length = 0; |
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|
1482 } |
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|
1483 } |
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1484 else if (param.modifier == 'c') |
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|
1485 { |
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|
1486 error ("whos_line_format: modifier 'c' not available for command '%c'", |
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|
1487 param.command); |
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|
1488 error_encountered = true; |
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|
1489 } |
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|
1490 |
10315
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|
1491 // What happens if whos_line_format contains negative numbers |
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|
1492 // at param_length positions? |
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|
1493 param.balance = (b < 0 ? 0 : param.balance); |
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|
1494 param.first_parameter_length = (b < 0 ? 0 : |
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|
1495 param.first_parameter_length); |
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|
1496 param.parameter_length = (a < 0 |
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|
1497 ? 0 |
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|
1498 : (param.parameter_length |
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1499 < param_length(pos_s) |
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|
1500 ? param_length(pos_s) |
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|
1501 : param.parameter_length)); |
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|
1502 |
10315
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1503 // Parameter will not be pushed into parameter list if ... |
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1504 if (! error_encountered) |
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1505 params.push_back (param); |
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|
1506 } |
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|
1507 else |
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|
1508 { |
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1509 // Text string, to be printed as it is ... |
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|
1510 std::string text; |
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|
1511 size_t pos; |
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1512 text = Vwhos_line_format.substr (idx, Vwhos_line_format.length ()); |
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1513 pos = text.find ('%'); |
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|
1514 if (pos != std::string::npos) |
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1515 text = text.substr (0, pos); |
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|
1516 |
10315
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|
1517 // Push parameter into list ... |
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|
1518 idx += text.length (); |
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|
1519 param.text=text; |
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|
1520 param.line.assign (text.length(), ' '); |
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|
1521 params.push_back (param); |
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|
1522 } |
7586
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|
1523 } |
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|
1524 |
84122fb29c75
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|
1525 return params; |
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diff
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|
1526 } |
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changeset
|
1527 |
84122fb29c75
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diff
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|
1528 private: |
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|
1529 std::list<symbol_info> lst; |
84122fb29c75
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diff
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|
1530 |
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|
1531 }; |
5659 | 1532 |
4435 | 1533 static octave_value |
7336 | 1534 do_who (int argc, const string_vector& argv, bool return_list, |
10315
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1535 bool verbose = false, std::string msg = std::string ()) |
529 | 1536 { |
4435 | 1537 octave_value retval; |
529 | 1538 |
3523 | 1539 std::string my_name = argv[0]; |
584 | 1540 |
7336 | 1541 bool global_only = false; |
7779
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Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
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|
1542 bool have_regexp = false; |
7336 | 1543 |
1857 | 1544 int i; |
1545 for (i = 1; i < argc; i++) | |
529 | 1546 { |
7779
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Add regexp matching to Fwho and Fclear
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|
1547 if (argv[i] == "-file") |
10315
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|
1548 { |
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|
1549 // FIXME. This is an inefficient manner to implement this as the |
57a59eae83cc
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1550 // variables are loaded in to a temporary context and then treated. |
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1551 // It would be better to refecat symbol_info_list to not store the |
57a59eae83cc
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1552 // symbol records and then use it in load-save.cc (do_load) to |
57a59eae83cc
untabify src C++ source files
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|
1553 // implement this option there so that the variables are never |
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|
1554 // stored at all. |
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|
1555 if (i == argc - 1) |
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1556 error ("whos: -file argument must be followed by a file name"); |
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1557 else |
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|
1558 { |
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|
1559 std::string nm = argv [i + 1]; |
8131
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Add -file option to who/whos
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|
1560 |
10315
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|
1561 unwind_protect frame; |
8131
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Add -file option to who/whos
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|
1562 |
10315
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|
1563 // Set up temporary scope. |
8131
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Add -file option to who/whos
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|
1564 |
10315
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|
1565 symbol_table::scope_id tmp_scope = symbol_table::alloc_scope (); |
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|
1566 frame.add_fcn (symbol_table::erase_scope, tmp_scope); |
9144
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eliminate symbol_table::scope_stack; fix scoping issue with evalin
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|
1567 |
10315
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|
1568 symbol_table::set_scope (tmp_scope); |
9144
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eliminate symbol_table::scope_stack; fix scoping issue with evalin
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|
1569 |
10315
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|
1570 octave_call_stack::push (tmp_scope, 0); |
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|
1571 frame.add_fcn (octave_call_stack::pop); |
8131
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Add -file option to who/whos
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|
1572 |
10315
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|
1573 frame.add_fcn (symbol_table::clear_variables); |
8131
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Add -file option to who/whos
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|
1574 |
10315
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|
1575 feval ("load", octave_value (nm), 0); |
8131
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Add -file option to who/whos
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|
1576 |
10315
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|
1577 if (! error_state) |
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|
1578 { |
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|
1579 std::string newmsg = std::string ("Variables in the file ") + |
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untabify src C++ source files
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|
1580 nm + ":\n\n"; |
8131
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|
1581 |
10315
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|
1582 retval = do_who (i, argv, return_list, verbose, newmsg); |
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|
1583 } |
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|
1584 } |
8131
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Add -file option to who/whos
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|
1585 |
10315
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|
1586 return retval; |
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|
1587 } |
7779
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Add regexp matching to Fwho and Fclear
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|
1588 else if (argv[i] == "-regexp") |
10315
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|
1589 have_regexp = true; |
7336 | 1590 else if (argv[i] == "global") |
10315
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|
1591 global_only = true; |
1755 | 1592 else if (argv[i][0] == '-') |
10315
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|
1593 warning ("%s: unrecognized option `%s'", my_name.c_str (), |
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untabify src C++ source files
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|
1594 argv[i].c_str ()); |
529 | 1595 else |
10315
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1596 break; |
529 | 1597 } |
1598 | |
7336 | 1599 int npats = argc - i; |
7586
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|
1600 string_vector pats; |
7336 | 1601 if (npats > 0) |
3248 | 1602 { |
7586
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|
1603 pats.resize (npats); |
7336 | 1604 for (int j = 0; j < npats; j++) |
10315
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|
1605 pats[j] = argv[i+j]; |
3248 | 1606 } |
7336 | 1607 else |
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|
1608 { |
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|
1609 pats.resize (++npats); |
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|
1610 pats[0] = "*"; |
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|
1611 } |
7336 | 1612 |
7586
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|
1613 symbol_info_list symbol_stats; |
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|
1614 std::list<std::string> symbol_names; |
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|
1615 |
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|
1616 for (int j = 0; j < npats; j++) |
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|
1617 { |
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|
1618 std::string pat = pats[j]; |
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|
1619 |
7779
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Add regexp matching to Fwho and Fclear
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changeset
|
1620 if (have_regexp) |
10315
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|
1621 { |
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1622 std::list<symbol_table::symbol_record> tmp = global_only |
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|
1623 ? symbol_table::regexp_global_variables (pat) |
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|
1624 : symbol_table::regexp_variables (pat); |
7586
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|
1625 |
10315
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changeset
|
1626 for (std::list<symbol_table::symbol_record>::const_iterator p = tmp.begin (); |
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|
1627 p != tmp.end (); p++) |
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|
1628 { |
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changeset
|
1629 if (p->is_variable ()) |
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|
1630 { |
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changeset
|
1631 if (verbose) |
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changeset
|
1632 symbol_stats.append (*p); |
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changeset
|
1633 else |
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changeset
|
1634 symbol_names.push_back (p->name ()); |
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|
1635 } |
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|
1636 } |
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|
1637 } |
7779
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|
1638 else |
10315
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|
1639 { |
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|
1640 size_t pos = pat.find_first_of (".({"); |
7779
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1641 |
10315
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John W. Eaton <jwe@octave.org>
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10160
diff
changeset
|
1642 if (pos != std::string::npos && pos > 0) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1643 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1644 if (verbose) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1645 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1646 // NOTE: we can only display information for |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1647 // expressions based on global values if the variable is |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1648 // global in the current scope because we currently have |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1649 // no way of looking up the base value in the global |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1650 // scope and then evaluating the arguments in the |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1651 // current scope. |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1652 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1653 std::string base_name = pat.substr (0, pos); |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1654 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1655 if (symbol_table::is_variable (base_name)) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1656 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1657 symbol_table::symbol_record sr |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1658 = symbol_table::find_symbol (base_name); |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1659 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1660 if (! global_only || sr.is_global ()) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1661 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1662 int parse_status; |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1663 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1664 octave_value expr_val |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1665 = eval_string (pat, true, parse_status); |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1666 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1667 if (! error_state) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1668 symbol_stats.append (sr, pat, expr_val); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1669 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1670 return retval; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1671 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1672 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1673 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1674 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1675 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1676 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1677 std::list<symbol_table::symbol_record> tmp = global_only |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1678 ? symbol_table::glob_global_variables (pat) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1679 : symbol_table::glob_variables (pat); |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1680 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1681 for (std::list<symbol_table::symbol_record>::const_iterator p = tmp.begin (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1682 p != tmp.end (); p++) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1683 { |
9260
9c2349a51218
properly unmark forced variables
John W. Eaton <jwe@octave.org>
parents:
9250
diff
changeset
|
1684 if (p->is_variable ()) |
9250
80c299c84796
don't print undefined symbols in who
Jaroslav Hajek <highegg@gmail.com>
parents:
9240
diff
changeset
|
1685 { |
80c299c84796
don't print undefined symbols in who
Jaroslav Hajek <highegg@gmail.com>
parents:
9240
diff
changeset
|
1686 if (verbose) |
80c299c84796
don't print undefined symbols in who
Jaroslav Hajek <highegg@gmail.com>
parents:
9240
diff
changeset
|
1687 symbol_stats.append (*p); |
80c299c84796
don't print undefined symbols in who
Jaroslav Hajek <highegg@gmail.com>
parents:
9240
diff
changeset
|
1688 else |
80c299c84796
don't print undefined symbols in who
Jaroslav Hajek <highegg@gmail.com>
parents:
9240
diff
changeset
|
1689 symbol_names.push_back (p->name ()); |
80c299c84796
don't print undefined symbols in who
Jaroslav Hajek <highegg@gmail.com>
parents:
9240
diff
changeset
|
1690 } |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1691 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1692 } |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1693 } |
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1694 } |
529 | 1695 |
4435 | 1696 if (return_list) |
529 | 1697 { |
7336 | 1698 if (verbose) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1699 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1700 std::string caller_function_name; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1701 octave_function *caller = octave_call_stack::caller (); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1702 if (caller) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1703 caller_function_name = caller->name (); |
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1704 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1705 retval = symbol_stats.map_value (caller_function_name, 1); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1706 } |
4435 | 1707 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1708 retval = Cell (string_vector (symbol_names)); |
529 | 1709 } |
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1710 else if (! (symbol_stats.empty () && symbol_names.empty ())) |
529 | 1711 { |
8131
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1712 if (msg.length () == 0) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1713 if (global_only) |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1714 octave_stdout << "Global variables:\n\n"; |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1715 else |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1716 octave_stdout << "Variables in the current scope:\n\n"; |
7336 | 1717 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1718 octave_stdout << msg; |
7336 | 1719 |
1720 if (verbose) | |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1721 symbol_stats.display (octave_stdout); |
7336 | 1722 else |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1723 { |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1724 string_vector names (symbol_names); |
7336 | 1725 |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1726 names.list_in_columns (octave_stdout); |
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1727 } |
4435 | 1728 |
7336 | 1729 octave_stdout << "\n"; |
529 | 1730 } |
1731 | |
581 | 1732 return retval; |
1733 } | |
1734 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8677
diff
changeset
|
1735 DEFUN (who, args, nargout, |
3361 | 1736 "-*- texinfo -*-\n\ |
9724
f22bbc5d56e9
Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents:
9704
diff
changeset
|
1737 @deftypefn {Command} {} who\n\ |
f22bbc5d56e9
Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents:
9704
diff
changeset
|
1738 @deftypefnx {Command} {} who pattern @dots{}\n\ |
f22bbc5d56e9
Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents:
9704
diff
changeset
|
1739 @deftypefnx {Command} {} who option pattern @dots{}\n\ |
9750
7bf4f3d64955
Fix unbalanced parentheses warning during creation of pdf documentation.
Rik <rdrider0-list@yahoo.com>
parents:
9732
diff
changeset
|
1740 @deftypefnx {Command} {C =} who (\"pattern\", @dots{})\n\ |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1741 List currently defined variables matching the given patterns. Valid\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1742 pattern syntax is the same as described for the @code{clear} command.\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1743 If no patterns are supplied, all variables are listed.\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1744 By default, only variables visible in the local scope are displayed.\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1745 \n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1746 The following are valid options but may not be combined.\n\ |
3361 | 1747 \n\ |
1748 @table @code\n\ | |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1749 @item global\n\ |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1750 List variables in the global scope rather than the current scope.\n\ |
10840 | 1751 \n\ |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1752 @item -regexp\n\ |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1753 The patterns are considered to be regular expressions when matching the\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1754 variables to display. The same pattern syntax accepted by\n\ |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1755 the @code{regexp} function is used.\n\ |
10840 | 1756 \n\ |
8131
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1757 @item -file\n\ |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1758 The next argument is treated as a filename. All variables found within the\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1759 specified file are listed. No patterns are accepted when reading variables\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1760 from a file.\n\ |
3361 | 1761 @end table\n\ |
1762 \n\ | |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1763 If called as a function, return a cell array of defined variable names\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1764 matching the given patterns.\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1765 @seealso{whos, regexp}\n\ |
9724
f22bbc5d56e9
Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents:
9704
diff
changeset
|
1766 @end deftypefn") |
581 | 1767 { |
4435 | 1768 octave_value retval; |
581 | 1769 |
4435 | 1770 if (nargout < 2) |
1771 { | |
1772 int argc = args.length () + 1; | |
1773 | |
1774 string_vector argv = args.make_argv ("who"); | |
1755 | 1775 |
7336 | 1776 if (! error_state) |
10315
57a59eae83cc
untabify src C++ source files
John W. Eaton <jwe@octave.org>
parents:
10160
diff
changeset
|
1777 retval = do_who (argc, argv, nargout == 1); |
4435 | 1778 } |
1779 else | |
5823 | 1780 print_usage (); |
581 | 1781 |
529 | 1782 return retval; |
1783 } | |
1784 | |
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8677
diff
changeset
|
1785 DEFUN (whos, args, nargout, |
3458 | 1786 "-*- texinfo -*-\n\ |
9724
f22bbc5d56e9
Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents:
9704
diff
changeset
|
1787 @deftypefn {Command} {} whos\n\ |
f22bbc5d56e9
Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents:
9704
diff
changeset
|
1788 @deftypefnx {Command} {} whos pattern @dots{}\n\ |
f22bbc5d56e9
Fix various incorrect usages of TeXinfo deffn and deftypefn macros
Rik <rdrider0-list@yahoo.com>
parents:
9704
diff
changeset
|
1789 @deftypefnx {Command} {} whos option pattern @dots{}\n\ |
9750
7bf4f3d64955
Fix unbalanced parentheses warning during creation of pdf documentation.
Rik <rdrider0-list@yahoo.com>
parents:
9732
diff
changeset
|
1790 @deftypefnx {Command} {S =} whos (\"pattern\", @dots{})\n\ |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1791 Provide detailed information on currently defined variables matching the\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1792 given patterns. Options and pattern syntax are the same as for the\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1793 @code{who} command. Extended information about each variable is\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1794 summarized in a table with the following default entries.\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1795 \n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
9260
diff
changeset
|
1796 @table @asis\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
Rik <rdrider0-list@yahoo.com>
parents:
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1797 @item Attr\n\ |
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1798 Attributes of the listed variable. Possible attributes are:\n\ |
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1799 @table @asis\n\ |
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1800 @item blank\n\ |
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1801 Variable in local scope\n\ |
10840 | 1802 \n\ |
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1803 @item @code{g}\n\ |
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1804 Variable with global scope\n\ |
10840 | 1805 \n\ |
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1806 @item @code{p}\n\ |
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1807 Persistent variable\n\ |
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1808 @end table\n\ |
10840 | 1809 \n\ |
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1810 @item Name\n\ |
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1811 The name of the variable.\n\ |
10840 | 1812 \n\ |
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1813 @item Size\n\ |
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1814 The logical size of the variable. A scalar is 1x1, a vector is 1xN or Nx1,\n\ |
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1815 a 2-D matrix is MxN.\n\ |
10840 | 1816 \n\ |
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1817 @item Bytes\n\ |
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1818 The amount of memory currently used to store the variable.\n\ |
10840 | 1819 \n\ |
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1820 @item Class\n\ |
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1821 The class of the variable. Examples include double, single, char, uint16,\n\ |
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1822 cell, and struct.\n\ |
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1823 @end table\n\ |
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1824 \n\ |
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1825 The table can be customized to display more or less information through\n\ |
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1826 the function @code{whos_line_format}.\n\ |
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1827 \n\ |
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1828 If @code{whos} is called as a function, return a struct array of defined\n\ |
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1829 variable names matching the given patterns. Fields in the structure\n\ |
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1830 describing each variable are: name, size, bytes, class, global, sparse, \n\ |
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1831 complex, nesting, persistent.\n\ |
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1832 @seealso{who, whos_line_format}\n\ |
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1833 @end deftypefn") |
581 | 1834 { |
4435 | 1835 octave_value retval; |
712 | 1836 |
4435 | 1837 if (nargout < 2) |
1838 { | |
7336 | 1839 int argc = args.length () + 1; |
1840 | |
1841 string_vector argv = args.make_argv ("whos"); | |
1842 | |
1843 if (! error_state) | |
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1844 retval = do_who (argc, argv, nargout == 1, true); |
4435 | 1845 } |
1846 else | |
5823 | 1847 print_usage (); |
581 | 1848 |
1849 return retval; | |
1850 } | |
1851 | |
593 | 1852 // Defining variables. |
1853 | |
1162 | 1854 void |
2856 | 1855 bind_ans (const octave_value& val, bool print) |
1162 | 1856 { |
7336 | 1857 static std::string ans = "ans"; |
1162 | 1858 |
2978 | 1859 if (val.is_defined ()) |
1860 { | |
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1861 if (val.is_cs_list ()) |
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1862 { |
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1863 octave_value_list lst = val.list_value (); |
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1864 |
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1865 for (octave_idx_type i = 0; i < lst.length (); i++) |
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1866 bind_ans (lst(i), print); |
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1867 } |
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1868 else |
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1869 { |
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1870 symbol_table::varref (ans) = val; |
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1871 |
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1872 if (print) |
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1873 val.print_with_name (octave_stdout, ans); |
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1874 } |
2978 | 1875 } |
1162 | 1876 } |
1877 | |
593 | 1878 void |
5794 | 1879 bind_internal_variable (const std::string& fname, const octave_value& val) |
593 | 1880 { |
5794 | 1881 octave_value_list args; |
1882 | |
1883 args(0) = val; | |
1884 | |
1885 feval (fname, args, 0); | |
529 | 1886 } |
1887 | |
4319 | 1888 void |
7336 | 1889 mlock (void) |
4319 | 1890 { |
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1891 octave_function *fcn = octave_call_stack::current (); |
7336 | 1892 |
1893 if (fcn) | |
1894 fcn->lock (); | |
1895 else | |
1896 error ("mlock: invalid use outside a function"); | |
4319 | 1897 } |
1898 | |
1899 void | |
1900 munlock (const std::string& nm) | |
1901 { | |
7336 | 1902 octave_value val = symbol_table::find_function (nm); |
1903 | |
1904 if (val.is_defined ()) | |
1905 { | |
1906 octave_function *fcn = val.function_value (); | |
1907 | |
1908 if (fcn) | |
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1909 fcn->unlock (); |
7336 | 1910 } |
4319 | 1911 } |
1912 | |
1913 bool | |
1914 mislocked (const std::string& nm) | |
1915 { | |
7336 | 1916 bool retval = false; |
1917 | |
1918 octave_value val = symbol_table::find_function (nm); | |
1919 | |
1920 if (val.is_defined ()) | |
1921 { | |
1922 octave_function *fcn = val.function_value (); | |
1923 | |
1924 if (fcn) | |
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1925 retval = fcn->islocked (); |
7336 | 1926 } |
1927 | |
1928 return retval; | |
4319 | 1929 } |
1930 | |
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1931 DEFUN (mlock, args, , |
4319 | 1932 "-*- texinfo -*-\n\ |
7875 | 1933 @deftypefn {Built-in Function} {} mlock ()\n\ |
7336 | 1934 Lock the current function into memory so that it can't be cleared.\n\ |
5642 | 1935 @seealso{munlock, mislocked, persistent}\n\ |
1936 @end deftypefn") | |
4319 | 1937 { |
1938 octave_value_list retval; | |
1939 | |
7336 | 1940 if (args.length () == 0) |
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1941 { |
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1942 octave_function *fcn = octave_call_stack::caller (); |
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1943 |
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1944 if (fcn) |
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1945 fcn->lock (); |
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1946 else |
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1947 error ("mlock: invalid use outside a function"); |
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1948 } |
4319 | 1949 else |
5823 | 1950 print_usage (); |
4319 | 1951 |
1952 return retval; | |
1953 } | |
1954 | |
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1955 DEFUN (munlock, args, , |
4319 | 1956 "-*- texinfo -*-\n\ |
1957 @deftypefn {Built-in Function} {} munlock (@var{fcn})\n\ | |
1958 Unlock the named function. If no function is named\n\ | |
1959 then unlock the current function.\n\ | |
5642 | 1960 @seealso{mlock, mislocked, persistent}\n\ |
1961 @end deftypefn") | |
4319 | 1962 { |
1963 octave_value_list retval; | |
1964 | |
1965 if (args.length() == 1) | |
1966 { | |
1967 std::string name = args(0).string_value (); | |
1968 | |
1969 if (! error_state) | |
1970 munlock (name); | |
1971 else | |
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1972 error ("munlock: expecting argument to be a function name"); |
4319 | 1973 } |
1974 else if (args.length () == 0) | |
1975 { | |
7336 | 1976 octave_function *fcn = octave_call_stack::caller (); |
5743 | 1977 |
1978 if (fcn) | |
7336 | 1979 fcn->unlock (); |
4319 | 1980 else |
1981 error ("munlock: invalid use outside a function"); | |
1982 } | |
1983 else | |
5823 | 1984 print_usage (); |
4319 | 1985 |
1986 return retval; | |
1987 } | |
1988 | |
1989 | |
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1990 DEFUN (mislocked, args, , |
4319 | 1991 "-*- texinfo -*-\n\ |
1992 @deftypefn {Built-in Function} {} mislocked (@var{fcn})\n\ | |
1993 Return true if the named function is locked. If no function is named\n\ | |
1994 then return true if the current function is locked.\n\ | |
5642 | 1995 @seealso{mlock, munlock, persistent}\n\ |
1996 @end deftypefn") | |
4319 | 1997 { |
1998 octave_value retval; | |
1999 | |
2000 if (args.length() == 1) | |
2001 { | |
2002 std::string name = args(0).string_value (); | |
2003 | |
2004 if (! error_state) | |
2005 retval = mislocked (name); | |
2006 else | |
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2007 error ("mislocked: expecting argument to be a function name"); |
4319 | 2008 } |
2009 else if (args.length () == 0) | |
2010 { | |
7336 | 2011 octave_function *fcn = octave_call_stack::caller (); |
5743 | 2012 |
2013 if (fcn) | |
7336 | 2014 retval = fcn->islocked (); |
4319 | 2015 else |
2016 error ("mislocked: invalid use outside a function"); | |
2017 } | |
2018 else | |
5823 | 2019 print_usage (); |
4319 | 2020 |
2021 return retval; | |
2022 } | |
2023 | |
593 | 2024 // Deleting names from the symbol tables. |
2025 | |
3681 | 2026 static inline bool |
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2027 name_matches_any_pattern (const std::string& nm, const string_vector& argv, |
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2028 int argc, int idx, bool have_regexp = false) |
3681 | 2029 { |
2030 bool retval = false; | |
2031 | |
2032 for (int k = idx; k < argc; k++) | |
2033 { | |
2034 std::string patstr = argv[k]; | |
2035 if (! patstr.empty ()) | |
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2036 { |
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2037 if (have_regexp) |
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2038 { |
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2039 regex_match pattern (patstr); |
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2040 |
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2041 if (pattern.match (nm)) |
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2042 { |
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2043 retval = true; |
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2044 break; |
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2045 } |
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2046 } |
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2047 else |
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2048 { |
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2049 glob_match pattern (patstr); |
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2050 |
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2051 if (pattern.match (nm)) |
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2052 { |
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2053 retval = true; |
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2054 break; |
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2055 } |
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2056 } |
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2057 } |
3681 | 2058 } |
2059 | |
2060 return retval; | |
2061 } | |
2062 | |
4009 | 2063 static inline void |
2064 maybe_warn_exclusive (bool exclusive) | |
2065 { | |
2066 if (exclusive) | |
2067 warning ("clear: ignoring --exclusive option"); | |
2068 } | |
2069 | |
7336 | 2070 static void |
4009 | 2071 do_clear_functions (const string_vector& argv, int argc, int idx, |
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2072 bool exclusive = false) |
4009 | 2073 { |
2074 if (idx == argc) | |
7336 | 2075 symbol_table::clear_functions (); |
4009 | 2076 else |
2077 { | |
2078 if (exclusive) | |
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2079 { |
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2080 string_vector fcns = symbol_table::user_function_names (); |
4009 | 2081 |
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2082 int fcount = fcns.length (); |
4009 | 2083 |
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2084 for (int i = 0; i < fcount; i++) |
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2085 { |
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2086 std::string nm = fcns[i]; |
4009 | 2087 |
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2088 if (! name_matches_any_pattern (nm, argv, argc, idx)) |
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2089 symbol_table::clear_function (nm); |
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2090 } |
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2091 } |
4009 | 2092 else |
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2093 { |
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2094 while (idx < argc) |
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2095 symbol_table::clear_function_pattern (argv[idx++]); |
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2096 } |
4009 | 2097 } |
2098 } | |
2099 | |
7336 | 2100 static void |
4009 | 2101 do_clear_globals (const string_vector& argv, int argc, int idx, |
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2102 bool exclusive = false) |
4009 | 2103 { |
2104 if (idx == argc) | |
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2105 { |
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2106 string_vector gvars = symbol_table::global_variable_names (); |
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2107 |
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2108 int gcount = gvars.length (); |
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2109 |
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2110 for (int i = 0; i < gcount; i++) |
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2111 symbol_table::clear_global (gvars[i]); |
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2112 } |
4009 | 2113 else |
2114 { | |
2115 if (exclusive) | |
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2116 { |
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2117 string_vector gvars = symbol_table::global_variable_names (); |
4009 | 2118 |
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2119 int gcount = gvars.length (); |
4009 | 2120 |
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2121 for (int i = 0; i < gcount; i++) |
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2122 { |
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2123 std::string nm = gvars[i]; |
4009 | 2124 |
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2125 if (! name_matches_any_pattern (nm, argv, argc, idx)) |
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2126 symbol_table::clear_global (nm); |
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2127 } |
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2128 } |
4009 | 2129 else |
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2130 { |
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2131 while (idx < argc) |
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2132 symbol_table::clear_global_pattern (argv[idx++]); |
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2133 } |
4009 | 2134 } |
2135 } | |
2136 | |
7336 | 2137 static void |
4009 | 2138 do_clear_variables (const string_vector& argv, int argc, int idx, |
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2139 bool exclusive = false, bool have_regexp = false) |
4009 | 2140 { |
2141 if (idx == argc) | |
7336 | 2142 symbol_table::clear_variables (); |
4009 | 2143 else |
2144 { | |
2145 if (exclusive) | |
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2146 { |
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2147 string_vector lvars = symbol_table::variable_names (); |
4009 | 2148 |
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2149 int lcount = lvars.length (); |
4009 | 2150 |
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2151 for (int i = 0; i < lcount; i++) |
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2152 { |
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2153 std::string nm = lvars[i]; |
4009 | 2154 |
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2155 if (! name_matches_any_pattern (nm, argv, argc, idx, have_regexp)) |
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2156 symbol_table::clear_variable (nm); |
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2157 } |
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2158 } |
4009 | 2159 else |
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2160 { |
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2161 if (have_regexp) |
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2162 while (idx < argc) |
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2163 symbol_table::clear_variable_regexp (argv[idx++]); |
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2164 else |
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2165 while (idx < argc) |
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2166 symbol_table::clear_variable_pattern (argv[idx++]); |
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2167 } |
4009 | 2168 } |
2169 } | |
2170 | |
7336 | 2171 static void |
4009 | 2172 do_clear_symbols (const string_vector& argv, int argc, int idx, |
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2173 bool exclusive = false) |
4009 | 2174 { |
2175 if (idx == argc) | |
7336 | 2176 symbol_table::clear_variables (); |
4009 | 2177 else |
2178 { | |
2179 if (exclusive) | |
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2180 { |
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2181 // FIXME -- is this really what we want, or do we |
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2182 // somehow want to only clear the functions that are not |
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2183 // shadowed by local variables? It seems that would be a |
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2184 // bit harder to do. |
4009 | 2185 |
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2186 do_clear_variables (argv, argc, idx, exclusive); |
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2187 do_clear_functions (argv, argc, idx, exclusive); |
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2188 } |
4009 | 2189 else |
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2190 { |
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2191 while (idx < argc) |
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2192 symbol_table::clear_symbol_pattern (argv[idx++]); |
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2193 } |
4009 | 2194 } |
2195 } | |
2196 | |
2197 static void | |
2198 do_matlab_compatible_clear (const string_vector& argv, int argc, int idx) | |
2199 { | |
2200 // This is supposed to be mostly Matlab compatible. | |
2201 | |
2202 for (; idx < argc; idx++) | |
2203 { | |
7336 | 2204 if (argv[idx] == "all" |
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2205 && ! symbol_table::is_local_variable ("all")) |
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2206 { |
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2207 symbol_table::clear_all (); |
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2208 } |
7336 | 2209 else if (argv[idx] == "functions" |
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2210 && ! symbol_table::is_local_variable ("functions")) |
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2211 { |
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2212 do_clear_functions (argv, argc, ++idx); |
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2213 } |
7336 | 2214 else if (argv[idx] == "global" |
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2215 && ! symbol_table::is_local_variable ("global")) |
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2216 { |
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2217 do_clear_globals (argv, argc, ++idx); |
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2218 } |
7336 | 2219 else if (argv[idx] == "variables" |
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2220 && ! symbol_table::is_local_variable ("variables")) |
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2221 { |
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2222 symbol_table::clear_variables (); |
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2223 } |
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2224 else if (argv[idx] == "classes" |
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2225 && ! symbol_table::is_local_variable ("classes")) |
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2226 { |
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2227 symbol_table::clear_objects (); |
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2228 octave_class::clear_exemplar_map (); |
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2229 } |
4009 | 2230 else |
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2231 { |
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2232 symbol_table::clear_symbol_pattern (argv[idx]); |
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2233 } |
4009 | 2234 } |
2235 } | |
2236 | |
2237 #define CLEAR_OPTION_ERROR(cond) \ | |
2238 do \ | |
2239 { \ | |
2240 if (cond) \ | |
2241 { \ | |
5823 | 2242 print_usage (); \ |
4009 | 2243 return retval; \ |
2244 } \ | |
2245 } \ | |
2246 while (0) | |
2247 | |
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|
2248 DEFUN (clear, args, , |
3361 | 2249 "-*- texinfo -*-\n\ |
7347 | 2250 @deffn {Command} clear [options] pattern @dots{}\n\ |
3361 | 2251 Delete the names matching the given patterns from the symbol table. The\n\ |
2252 pattern may contain the following special characters:\n\ | |
4016 | 2253 \n\ |
3361 | 2254 @table @code\n\ |
2255 @item ?\n\ | |
2256 Match any single character.\n\ | |
668 | 2257 \n\ |
3361 | 2258 @item *\n\ |
2259 Match zero or more characters.\n\ | |
2260 \n\ | |
2261 @item [ @var{list} ]\n\ | |
2262 Match the list of characters specified by @var{list}. If the first\n\ | |
2263 character is @code{!} or @code{^}, match all characters except those\n\ | |
2264 specified by @var{list}. For example, the pattern @samp{[a-zA-Z]} will\n\ | |
2265 match all lower and upper case alphabetic characters.\n\ | |
2266 @end table\n\ | |
2267 \n\ | |
2268 For example, the command\n\ | |
593 | 2269 \n\ |
3361 | 2270 @example\n\ |
2271 clear foo b*r\n\ | |
2272 @end example\n\ | |
2273 \n\ | |
2274 @noindent\n\ | |
2275 clears the name @code{foo} and all names that begin with the letter\n\ | |
2276 @code{b} and end with the letter @code{r}.\n\ | |
668 | 2277 \n\ |
3361 | 2278 If @code{clear} is called without any arguments, all user-defined\n\ |
2279 variables (local and global) are cleared from the symbol table. If\n\ | |
2280 @code{clear} is called with at least one argument, only the visible\n\ | |
2281 names matching the arguments are cleared. For example, suppose you have\n\ | |
2282 defined a function @code{foo}, and then hidden it by performing the\n\ | |
2283 assignment @code{foo = 2}. Executing the command @kbd{clear foo} once\n\ | |
2284 will clear the variable definition and restore the definition of\n\ | |
2285 @code{foo} as a function. Executing @kbd{clear foo} a second time will\n\ | |
2286 clear the function definition.\n\ | |
2287 \n\ | |
7347 | 2288 The following options are available in both long and short form\n\ |
2289 @table @code\n\ | |
2290 @item -all, -a\n\ | |
2291 Clears all local and global user-defined variables and all functions\n\ | |
2292 from the symbol table.\n\ | |
2293 \n\ | |
2294 @item -exclusive, -x\n\ | |
2295 Clears the variables that don't match the following pattern.\n\ | |
2296 \n\ | |
2297 @item -functions, -f\n\ | |
2298 Clears the function names and the built-in symbols names.\n\ | |
10840 | 2299 \n\ |
7347 | 2300 @item -global, -g\n\ |
2301 Clears the global symbol names.\n\ | |
10840 | 2302 \n\ |
7347 | 2303 @item -variables, -v\n\ |
2304 Clears the local variable names.\n\ | |
10840 | 2305 \n\ |
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2306 @item -classes, -c\n\ |
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2307 Clears the class structure table and clears all objects.\n\ |
10840 | 2308 \n\ |
7779
791231dac333
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David Bateman <dbateman@free.fr>
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7761
diff
changeset
|
2309 @item -regexp, -r\n\ |
791231dac333
Add regexp matching to Fwho and Fclear
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diff
changeset
|
2310 The arguments are treated as regular expressions as any variables that\n\ |
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Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
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diff
changeset
|
2311 match will be cleared.\n\ |
7347 | 2312 @end table\n\ |
8325
b93ac0586e4b
spelling corrections
Brian Gough<bjg@network-theory.co.uk>
parents:
8131
diff
changeset
|
2313 With the exception of @code{exclusive}, all long options can be used \n\ |
7347 | 2314 without the dash as well.\n\ |
3361 | 2315 @end deffn") |
529 | 2316 { |
2086 | 2317 octave_value_list retval; |
593 | 2318 |
1755 | 2319 int argc = args.length () + 1; |
593 | 2320 |
1968 | 2321 string_vector argv = args.make_argv ("clear"); |
1755 | 2322 |
4009 | 2323 if (! error_state) |
529 | 2324 { |
4009 | 2325 if (argc == 1) |
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2326 { |
9314 | 2327 do_clear_globals (argv, argc, 1); |
2328 do_clear_variables (argv, argc, 1); | |
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|
2329 } |
3681 | 2330 else |
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|
2331 { |
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|
2332 int idx = 0; |
4009 | 2333 |
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|
2334 bool clear_all = false; |
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2335 bool clear_functions = false; |
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2336 bool clear_globals = false; |
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|
2337 bool clear_variables = false; |
9240
f27a8c07f0b2
clear -classes and support.
Robert T. Short <octave@phaselockedsystems.com>
parents:
9180
diff
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|
2338 bool clear_objects = false; |
10315
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|
2339 bool exclusive = false; |
57a59eae83cc
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|
2340 bool have_regexp = false; |
57a59eae83cc
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|
2341 bool have_dash_option = false; |
3681 | 2342 |
10315
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untabify src C++ source files
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2343 while (++idx < argc) |
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|
2344 { |
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2345 if (argv[idx] == "-all" || argv[idx] == "-a") |
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|
2346 { |
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|
2347 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
3681 | 2348 |
10315
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|
2349 have_dash_option = true; |
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|
2350 clear_all = true; |
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|
2351 } |
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|
2352 else if (argv[idx] == "-exclusive" || argv[idx] == "-x") |
57a59eae83cc
untabify src C++ source files
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|
2353 { |
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|
2354 have_dash_option = true; |
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|
2355 exclusive = true; |
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|
2356 } |
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2357 else if (argv[idx] == "-functions" || argv[idx] == "-f") |
57a59eae83cc
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2358 { |
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2359 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
3681 | 2360 |
10315
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untabify src C++ source files
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|
2361 have_dash_option = true; |
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|
2362 clear_functions = true; |
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|
2363 } |
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|
2364 else if (argv[idx] == "-global" || argv[idx] == "-g") |
57a59eae83cc
untabify src C++ source files
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|
2365 { |
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|
2366 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
4009 | 2367 |
10315
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|
2368 have_dash_option = true; |
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|
2369 clear_globals = true; |
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|
2370 } |
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|
2371 else if (argv[idx] == "-variables" || argv[idx] == "-v") |
57a59eae83cc
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|
2372 { |
57a59eae83cc
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|
2373 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
3681 | 2374 |
10315
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|
2375 have_dash_option = true; |
57a59eae83cc
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|
2376 clear_variables = true; |
57a59eae83cc
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|
2377 } |
57a59eae83cc
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|
2378 else if (argv[idx] == "-classes" || argv[idx] == "-c") |
57a59eae83cc
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|
2379 { |
57a59eae83cc
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changeset
|
2380 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
9240
f27a8c07f0b2
clear -classes and support.
Robert T. Short <octave@phaselockedsystems.com>
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9180
diff
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|
2381 |
10315
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|
2382 have_dash_option = true; |
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|
2383 clear_objects = true; |
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|
2384 } |
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|
2385 else if (argv[idx] == "-regexp" || argv[idx] == "-r") |
57a59eae83cc
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|
2386 { |
57a59eae83cc
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changeset
|
2387 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
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diff
changeset
|
2388 |
10315
57a59eae83cc
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|
2389 have_dash_option = true; |
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|
2390 have_regexp = true; |
57a59eae83cc
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|
2391 } |
57a59eae83cc
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|
2392 else |
57a59eae83cc
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|
2393 break; |
57a59eae83cc
untabify src C++ source files
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changeset
|
2394 } |
3681 | 2395 |
10315
57a59eae83cc
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|
2396 if (idx <= argc) |
57a59eae83cc
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|
2397 { |
57a59eae83cc
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|
2398 if (! have_dash_option) |
57a59eae83cc
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|
2399 { |
57a59eae83cc
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|
2400 do_matlab_compatible_clear (argv, argc, idx); |
57a59eae83cc
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|
2401 } |
57a59eae83cc
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|
2402 else |
57a59eae83cc
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|
2403 { |
57a59eae83cc
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|
2404 if (clear_all) |
57a59eae83cc
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|
2405 { |
57a59eae83cc
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|
2406 maybe_warn_exclusive (exclusive); |
3681 | 2407 |
10315
57a59eae83cc
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|
2408 if (++idx < argc) |
57a59eae83cc
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|
2409 warning |
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|
2410 ("clear: ignoring extra arguments after -all"); |
3681 | 2411 |
10315
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|
2412 symbol_table::clear_all (); |
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|
2413 } |
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|
2414 else if (have_regexp) |
57a59eae83cc
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|
2415 { |
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|
2416 do_clear_variables (argv, argc, idx, exclusive, true); |
57a59eae83cc
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|
2417 } |
57a59eae83cc
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|
2418 else if (clear_functions) |
57a59eae83cc
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|
2419 { |
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|
2420 do_clear_functions (argv, argc, idx, exclusive); |
57a59eae83cc
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|
2421 } |
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|
2422 else if (clear_globals) |
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|
2423 { |
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|
2424 do_clear_globals (argv, argc, idx, exclusive); |
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|
2425 } |
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|
2426 else if (clear_variables) |
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|
2427 { |
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|
2428 do_clear_variables (argv, argc, idx, exclusive); |
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|
2429 } |
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|
2430 else if (clear_objects) |
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|
2431 { |
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|
2432 symbol_table::clear_objects (); |
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|
2433 octave_class::clear_exemplar_map (); |
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|
2434 } |
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|
2435 else |
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|
2436 { |
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|
2437 do_clear_symbols (argv, argc, idx, exclusive); |
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2438 } |
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|
2439 } |
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|
2440 } |
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|
2441 } |
593 | 2442 } |
2443 | |
2444 return retval; | |
529 | 2445 } |
2446 | |
7336 | 2447 DEFUN (whos_line_format, args, nargout, |
2448 "-*- texinfo -*-\n\ | |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
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|
2449 @deftypefn {Built-in Function} {@var{val} =} whos_line_format ()\n\ |
7336 | 2450 @deftypefnx {Built-in Function} {@var{old_val} =} whos_line_format (@var{new_val})\n\ |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
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diff
changeset
|
2451 Query or set the format string used by the command @code{whos}.\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
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|
2452 \n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
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changeset
|
2453 A full format string is:\n\ |
10846
a4f482e66b65
Grammarcheck more of the documentation.
Rik <octave@nomad.inbox5.com>
parents:
10840
diff
changeset
|
2454 @c Set example in small font to prevent overfull line\n\ |
7336 | 2455 \n\ |
9304
b6235c6cfb83
Update documentation for 'who' family of functions.
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changeset
|
2456 @smallexample\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
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diff
changeset
|
2457 %[modifier]<command>[:width[:left-min[:balance]]];\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
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changeset
|
2458 @end smallexample\n\ |
b6235c6cfb83
Update documentation for 'who' family of functions.
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changeset
|
2459 \n\ |
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2460 The following command sequences are available:\n\ |
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2461 \n\ |
7336 | 2462 @table @code\n\ |
2463 @item %a\n\ | |
2464 Prints attributes of variables (g=global, p=persistent,\n\ | |
2465 f=formal parameter, a=automatic variable).\n\ | |
10840 | 2466 \n\ |
7336 | 2467 @item %b\n\ |
2468 Prints number of bytes occupied by variables.\n\ | |
10840 | 2469 \n\ |
7336 | 2470 @item %c\n\ |
2471 Prints class names of variables.\n\ | |
10840 | 2472 \n\ |
7336 | 2473 @item %e\n\ |
2474 Prints elements held by variables.\n\ | |
10840 | 2475 \n\ |
7336 | 2476 @item %n\n\ |
2477 Prints variable names.\n\ | |
10840 | 2478 \n\ |
7336 | 2479 @item %s\n\ |
2480 Prints dimensions of variables.\n\ | |
10840 | 2481 \n\ |
7336 | 2482 @item %t\n\ |
2483 Prints type names of variables.\n\ | |
2484 @end table\n\ | |
2485 \n\ | |
9304
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2486 Every command may also have an alignment modifier:\n\ |
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2487 \n\ |
7336 | 2488 @table @code\n\ |
2489 @item l\n\ | |
2490 Left alignment.\n\ | |
10840 | 2491 \n\ |
7336 | 2492 @item r\n\ |
9304
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2493 Right alignment (default).\n\ |
10840 | 2494 \n\ |
7336 | 2495 @item c\n\ |
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2496 Column-aligned (only applicable to command %s).\n\ |
7336 | 2497 @end table\n\ |
2498 \n\ | |
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2499 The @code{width} parameter is a positive integer specifying the minimum\n\ |
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2500 number of columns used for printing. No maximum is needed as the field will\n\ |
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2501 auto-expand as required.\n\ |
7336 | 2502 \n\ |
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2503 The parameters @code{left-min} and @code{balance} are only available when the\n\ |
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2504 column-aligned modifier is used with the command @samp{%s}.\n\ |
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2505 @code{balance} specifies the column number within the field width which will\n\ |
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2506 be aligned between entries. Numbering starts from 0 which indicates the\n\ |
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2507 leftmost column. @code{left-min} specifies the minimum field width to the\n\ |
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2508 left of the specified balance column.\n\ |
7336 | 2509 \n\ |
8516 | 2510 The default format is\n\ |
2511 @code{\" %a:4; %ln:6; %cs:16:6:1; %rb:12; %lc:-1;\\n\"}.\n\ | |
9304
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2512 @seealso{whos}\n\ |
5794 | 2513 @end deftypefn") |
2514 { | |
7336 | 2515 return SET_INTERNAL_VARIABLE (whos_line_format); |
3016 | 2516 } |
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2517 |
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2518 static std::string Vmissing_function_hook = "unimplemented"; |
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2519 |
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2520 DEFUN (missing_function_hook, args, nargout, |
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2521 "-*- texinfo -*-\n\ |
10840 | 2522 @deftypefn {Built-in Function} {@var{val} =} missing_function_hook ()\n\ |
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2523 @deftypefnx {Built-in Function} {@var{old_val} =} missing_function_hook (@var{new_val})\n\ |
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2524 Query or set the internal variable that allows setting a custom hook function\n\ |
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2525 called when an uknown identifier is requested.\n\ |
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2526 @end deftypefn") |
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2527 { |
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2528 return SET_INTERNAL_VARIABLE (missing_function_hook); |
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2529 } |
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2530 |
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2531 void maybe_missing_function_hook (const std::string& name) |
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2532 { |
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2533 // Don't do this if we're handling errors. |
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2534 if (buffer_error_messages == 0 && ! Vmissing_function_hook.empty ()) |
10467
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2535 { |
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2536 // Ensure auto-restoration. |
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2537 unwind_protect frame; |
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2538 frame.protect_var (Vmissing_function_hook); |
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2539 |
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2540 // Clear the variable prior to calling the function. |
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2541 const std::string func_name = Vmissing_function_hook; |
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2542 Vmissing_function_hook.clear (); |
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2543 |
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2544 // Call. |
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2545 feval (func_name, octave_value (name)); |
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2546 } |
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2547 } |