Mercurial > hg > octave-nkf
annotate src/variables.cc @ 9037:4cb9f994dcec
Documentation cleanup of var.texi, expr.texi, eval.texi
Spellcheck
Style check (particularly for two spaces after period)
| author | Rik <rdrider0-list@yahoo.com> |
|---|---|
| date | Sun, 22 Mar 2009 08:41:49 -0700 |
| parents | eb63fbe60fab |
| children | c6463412aebb |
| rev | line source |
|---|---|
| 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 |
| 1 | 5 |
| 6 This file is part of Octave. | |
| 7 | |
| 8 Octave is free software; you can redistribute it and/or modify it | |
| 9 under the terms of the GNU General Public License as published by the | |
| 7016 | 10 Free Software Foundation; either version 3 of the License, or (at your |
| 11 option) any later version. | |
| 1 | 12 |
| 13 Octave is distributed in the hope that it will be useful, but WITHOUT | |
| 14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 16 for more details. | |
| 17 | |
| 18 You should have received a copy of the GNU General Public License | |
| 7016 | 19 along with Octave; see the file COPYING. If not, see |
| 20 <http://www.gnu.org/licenses/>. | |
| 1 | 21 |
| 22 */ | |
| 23 | |
| 240 | 24 #ifdef HAVE_CONFIG_H |
| 1192 | 25 #include <config.h> |
| 1 | 26 #endif |
| 27 | |
| 1468 | 28 #include <cstdio> |
| 1343 | 29 #include <cstring> |
| 605 | 30 |
| 7336 | 31 #include <iomanip> |
| 4207 | 32 #include <set> |
| 1728 | 33 #include <string> |
| 34 | |
| 2926 | 35 #include "file-stat.h" |
| 36 #include "oct-env.h" | |
| 4604 | 37 #include "file-ops.h" |
| 2926 | 38 #include "glob-match.h" |
|
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39 #include "regex-match.h" |
| 1755 | 40 #include "str-vec.h" |
| 41 | |
| 2492 | 42 #include <defaults.h> |
| 4435 | 43 #include "Cell.h" |
| 1352 | 44 #include "defun.h" |
| 45 #include "dirfns.h" | |
| 46 #include "error.h" | |
| 2205 | 47 #include "gripes.h" |
| 1352 | 48 #include "help.h" |
| 3165 | 49 #include "input.h" |
| 1352 | 50 #include "lex.h" |
| 5832 | 51 #include "load-path.h" |
| 2926 | 52 #include "oct-map.h" |
| 53 #include "oct-obj.h" | |
| 54 #include "ov.h" | |
| 3933 | 55 #include "ov-usr-fcn.h" |
| 605 | 56 #include "pager.h" |
| 1352 | 57 #include "parse.h" |
| 2926 | 58 #include "symtab.h" |
| 2205 | 59 #include "toplev.h" |
| 1352 | 60 #include "unwind-prot.h" |
| 1 | 61 #include "utils.h" |
| 1352 | 62 #include "variables.h" |
| 2205 | 63 |
| 7336 | 64 // Defines layout for the whos/who -long command |
| 65 static std::string Vwhos_line_format | |
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66 = " %a:4; %ln:6; %cs:16:6:1; %rb:12; %lc:-1;\n"; |
| 195 | 67 |
| 6068 | 68 void |
| 6072 | 69 clear_mex_functions (void) |
| 6068 | 70 { |
| 7336 | 71 symbol_table::clear_mex_functions (); |
| 72 } | |
| 73 | |
| 74 void | |
| 75 clear_function (const std::string& nm) | |
| 76 { | |
| 77 symbol_table::clear_function (nm); | |
| 78 } | |
| 79 | |
| 80 void | |
| 81 clear_variable (const std::string& nm) | |
| 82 { | |
| 83 symbol_table::clear_variable (nm); | |
| 84 } | |
| 85 | |
| 86 void | |
| 87 clear_symbol (const std::string& nm) | |
| 88 { | |
| 89 symbol_table::clear_symbol (nm); | |
| 6068 | 90 } |
| 91 | |
| 593 | 92 // Attributes of variables and functions. |
| 93 | |
| 2086 | 94 // Is this octave_value a valid function? |
| 593 | 95 |
| 2975 | 96 octave_function * |
| 4345 | 97 is_valid_function (const std::string& fcn_name, |
| 98 const std::string& warn_for, bool warn) | |
| 593 | 99 { |
| 2975 | 100 octave_function *ans = 0; |
| 593 | 101 |
| 1755 | 102 if (! fcn_name.empty ()) |
| 3618 | 103 { |
| 7336 | 104 octave_value val = symbol_table::find_function (fcn_name); |
| 105 | |
| 106 if (val.is_defined ()) | |
| 107 ans = val.function_value (true); | |
| 3618 | 108 } |
| 593 | 109 |
| 7336 | 110 if (! ans && warn) |
| 111 error ("%s: the symbol `%s' is not valid as a function", | |
| 112 warn_for.c_str (), fcn_name.c_str ()); | |
| 593 | 113 |
| 114 return ans; | |
| 115 } | |
| 116 | |
| 2975 | 117 octave_function * |
| 4345 | 118 is_valid_function (const octave_value& arg, |
| 119 const std::string& warn_for, bool warn) | |
| 3178 | 120 { |
| 121 octave_function *ans = 0; | |
| 122 | |
| 3523 | 123 std::string fcn_name; |
| 3178 | 124 |
| 125 if (arg.is_string ()) | |
| 4700 | 126 { |
| 127 fcn_name = arg.string_value (); | |
| 3178 | 128 |
| 4700 | 129 if (! error_state) |
| 130 ans = is_valid_function (fcn_name, warn_for, warn); | |
| 131 else if (warn) | |
| 132 error ("%s: expecting function name as argument", warn_for.c_str ()); | |
| 133 } | |
| 3178 | 134 else if (warn) |
| 135 error ("%s: expecting function name as argument", warn_for.c_str ()); | |
| 136 | |
| 137 return ans; | |
| 138 } | |
| 139 | |
| 140 octave_function * | |
| 3523 | 141 extract_function (const octave_value& arg, const std::string& warn_for, |
| 142 const std::string& fname, const std::string& header, | |
| 143 const std::string& trailer) | |
| 2796 | 144 { |
| 2975 | 145 octave_function *retval = 0; |
| 2796 | 146 |
| 147 retval = is_valid_function (arg, warn_for, 0); | |
| 148 | |
| 149 if (! retval) | |
| 150 { | |
| 3523 | 151 std::string s = arg.string_value (); |
| 2796 | 152 |
| 3523 | 153 std::string cmd = header; |
| 2796 | 154 cmd.append (s); |
| 155 cmd.append (trailer); | |
| 156 | |
| 157 if (! error_state) | |
| 158 { | |
| 159 int parse_status; | |
| 160 | |
| 2898 | 161 eval_string (cmd, true, parse_status); |
| 2796 | 162 |
| 163 if (parse_status == 0) | |
| 164 { | |
| 165 retval = is_valid_function (fname, warn_for, 0); | |
| 166 | |
| 167 if (! retval) | |
| 168 { | |
| 169 error ("%s: `%s' is not valid as a function", | |
| 170 warn_for.c_str (), fname.c_str ()); | |
| 171 return retval; | |
| 172 } | |
| 173 } | |
| 174 else | |
| 175 error ("%s: `%s' is not valid as a function", | |
| 176 warn_for.c_str (), fname.c_str ()); | |
| 177 } | |
| 178 else | |
| 179 error ("%s: expecting first argument to be a string", | |
| 180 warn_for.c_str ()); | |
| 181 } | |
| 182 | |
| 183 return retval; | |
| 184 } | |
| 185 | |
| 2921 | 186 string_vector |
| 3523 | 187 get_struct_elts (const std::string& text) |
| 2921 | 188 { |
| 189 int n = 1; | |
| 190 | |
| 191 size_t pos = 0; | |
| 192 | |
| 193 size_t len = text.length (); | |
| 194 | |
| 8021 | 195 while ((pos = text.find ('.', pos)) != std::string::npos) |
| 2921 | 196 { |
| 197 if (++pos == len) | |
| 198 break; | |
| 199 | |
| 200 n++; | |
| 201 } | |
| 202 | |
| 203 string_vector retval (n); | |
| 204 | |
| 205 pos = 0; | |
| 206 | |
| 207 for (int i = 0; i < n; i++) | |
| 208 { | |
| 4587 | 209 len = text.find ('.', pos); |
| 2921 | 210 |
| 8021 | 211 if (len != std::string::npos) |
| 2921 | 212 len -= pos; |
| 213 | |
| 214 retval[i] = text.substr (pos, len); | |
| 215 | |
| 8021 | 216 if (len != std::string::npos) |
| 2921 | 217 pos += len + 1; |
| 218 } | |
| 219 | |
| 220 return retval; | |
| 221 } | |
| 222 | |
| 4179 | 223 static inline bool |
| 224 is_variable (const std::string& name) | |
| 225 { | |
| 226 bool retval = false; | |
| 227 | |
| 228 if (! name.empty ()) | |
| 229 { | |
| 7336 | 230 octave_value val = symbol_table::varval (name); |
| 231 | |
| 232 retval = val.is_defined (); | |
| 4179 | 233 } |
| 234 | |
| 235 return retval; | |
| 236 } | |
| 237 | |
| 2921 | 238 string_vector |
| 3933 | 239 generate_struct_completions (const std::string& text, |
| 240 std::string& prefix, std::string& hint) | |
| 2921 | 241 { |
| 242 string_vector names; | |
| 243 | |
| 244 size_t pos = text.rfind ('.'); | |
| 245 | |
| 8021 | 246 if (pos != std::string::npos) |
| 2921 | 247 { |
| 248 if (pos == text.length ()) | |
| 249 hint = ""; | |
| 250 else | |
| 251 hint = text.substr (pos+1); | |
| 252 | |
| 253 prefix = text.substr (0, pos); | |
| 254 | |
| 4179 | 255 std::string base_name = prefix; |
| 256 | |
| 257 pos = base_name.find_first_of ("{(."); | |
| 2921 | 258 |
| 8021 | 259 if (pos != std::string::npos) |
| 4179 | 260 base_name = base_name.substr (0, pos); |
| 4143 | 261 |
| 4179 | 262 if (is_variable (base_name)) |
| 263 { | |
| 264 int parse_status; | |
| 265 | |
| 266 unwind_protect::begin_frame ("generate_struct_completions"); | |
| 3935 | 267 |
| 4452 | 268 unwind_protect_int (error_state); |
| 269 unwind_protect_int (warning_state); | |
| 270 | |
| 4179 | 271 unwind_protect_bool (discard_error_messages); |
| 4452 | 272 unwind_protect_bool (discard_warning_messages); |
| 3935 | 273 |
| 4179 | 274 discard_error_messages = true; |
| 4452 | 275 discard_warning_messages = true; |
| 2921 | 276 |
| 4179 | 277 octave_value tmp = eval_string (prefix, true, parse_status); |
| 278 | |
| 279 unwind_protect::run_frame ("generate_struct_completions"); | |
| 3935 | 280 |
| 4179 | 281 if (tmp.is_defined () && tmp.is_map ()) |
| 282 names = tmp.map_keys (); | |
| 283 } | |
| 284 } | |
| 2921 | 285 |
| 286 return names; | |
| 287 } | |
| 288 | |
| 5775 | 289 // FIXME -- this will have to be much smarter to work |
| 4179 | 290 // "correctly". |
| 291 | |
| 2921 | 292 bool |
| 3523 | 293 looks_like_struct (const std::string& text) |
| 2921 | 294 { |
| 4604 | 295 bool retval = (! text.empty () |
| 296 && text != "." | |
| 8021 | 297 && text.find_first_of (file_ops::dir_sep_chars ()) == std::string::npos |
| 298 && text.find ("..") == std::string::npos | |
| 299 && text.rfind ('.') != std::string::npos); | |
| 3968 | 300 |
| 4179 | 301 #if 0 |
| 3968 | 302 symbol_record *sr = curr_sym_tab->lookup (text); |
| 2963 | 303 |
| 3968 | 304 if (sr && ! sr->is_function ()) |
| 305 { | |
| 306 int parse_status; | |
| 2921 | 307 |
| 4143 | 308 unwind_protect::begin_frame ("looks_like_struct"); |
| 309 | |
| 310 unwind_protect_bool (discard_error_messages); | |
| 311 unwind_protect_int (error_state); | |
| 312 | |
| 313 discard_error_messages = true; | |
| 314 | |
| 3968 | 315 octave_value tmp = eval_string (text, true, parse_status); |
| 316 | |
| 4143 | 317 unwind_protect::run_frame ("looks_like_struct"); |
| 318 | |
| 3968 | 319 retval = (tmp.is_defined () && tmp.is_map ()); |
| 320 } | |
| 4179 | 321 #endif |
| 3968 | 322 |
| 323 return retval; | |
| 2921 | 324 } |
| 2796 | 325 |
| 5930 | 326 static octave_value |
| 327 do_isglobal (const octave_value_list& args) | |
| 593 | 328 { |
| 4233 | 329 octave_value retval = false; |
| 593 | 330 |
| 712 | 331 int nargin = args.length (); |
| 332 | |
| 333 if (nargin != 1) | |
| 593 | 334 { |
| 5823 | 335 print_usage (); |
| 593 | 336 return retval; |
| 337 } | |
| 338 | |
| 3523 | 339 std::string name = args(0).string_value (); |
| 593 | 340 |
| 636 | 341 if (error_state) |
| 342 { | |
| 4028 | 343 error ("isglobal: expecting std::string argument"); |
| 636 | 344 return retval; |
| 345 } | |
| 346 | |
| 7336 | 347 return symbol_table::is_global (name); |
| 593 | 348 } |
| 349 | |
| 5930 | 350 DEFUN (isglobal, args, , |
| 351 "-*- texinfo -*-\n\ | |
| 352 @deftypefn {Built-in Function} {} isglobal (@var{name})\n\ | |
| 353 Return 1 if @var{name} is globally visible. Otherwise, return 0. For\n\ | |
| 354 example,\n\ | |
| 355 \n\ | |
| 356 @example\n\ | |
| 357 @group\n\ | |
| 358 global x\n\ | |
| 359 isglobal (\"x\")\n\ | |
| 360 @result{} 1\n\ | |
| 361 @end group\n\ | |
| 362 @end example\n\ | |
| 363 @end deftypefn") | |
| 364 { | |
| 365 return do_isglobal (args); | |
| 366 } | |
| 367 | |
| 368 DEFUN (is_global, args, , | |
| 369 "-*- texinfo -*-\n\ | |
| 370 @deftypefn {Built-in Function} {} isglobal (@var{name})\n\ | |
| 371 This function has been deprecated. Use isglobal instead.\n\ | |
| 372 @end deftypefn") | |
| 373 { | |
| 374 return do_isglobal (args); | |
| 375 } | |
| 376 | |
| 4016 | 377 int |
| 378 symbol_exist (const std::string& name, const std::string& type) | |
| 593 | 379 { |
| 4016 | 380 int retval = 0; |
| 636 | 381 |
| 3523 | 382 std::string struct_elts; |
| 383 std::string symbol_name = name; | |
| 1755 | 384 |
| 385 size_t pos = name.find ('.'); | |
| 386 | |
| 8021 | 387 if (pos != std::string::npos && pos > 0) |
| 1277 | 388 { |
| 1755 | 389 struct_elts = name.substr (pos+1); |
| 2790 | 390 symbol_name = name.substr (0, pos); |
| 1277 | 391 } |
| 392 | |
| 4009 | 393 // We shouldn't need to look in the global symbol table, since any |
| 394 // name that is visible in the current scope will be in the local | |
| 395 // symbol table. | |
| 396 | |
| 7336 | 397 octave_value_list evaluated_args; |
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398 bool args_evaluated = false; |
| 7336 | 399 |
| 400 octave_value val = symbol_table::find (symbol_name, 0, string_vector (), | |
| 401 evaluated_args, args_evaluated); | |
| 402 | |
| 403 if (val.is_defined ()) | |
| 1277 | 404 { |
| 4357 | 405 bool not_a_struct = struct_elts.empty (); |
| 7336 | 406 bool var_ok = not_a_struct /* || val.is_map_element (struct_elts) */; |
| 4357 | 407 |
| 4016 | 408 if (! retval |
| 4357 | 409 && var_ok |
| 4016 | 410 && (type == "any" || type == "var") |
| 7336 | 411 && val.is_constant ()) |
| 4009 | 412 { |
| 4016 | 413 retval = 1; |
| 4009 | 414 } |
| 4016 | 415 |
| 416 if (! retval | |
| 417 && (type == "any" || type == "builtin")) | |
| 4009 | 418 { |
| 7336 | 419 if (not_a_struct && val.is_builtin_function ()) |
| 4016 | 420 { |
| 421 retval = 5; | |
| 422 } | |
| 4009 | 423 } |
| 4016 | 424 |
| 425 if (! retval | |
| 4357 | 426 && not_a_struct |
| 4016 | 427 && (type == "any" || type == "file") |
| 7336 | 428 && (val.is_user_function () || val.is_dld_function ())) |
| 4009 | 429 { |
| 7336 | 430 octave_function *f = val.function_value (true); |
| 4016 | 431 std::string s = f ? f->fcn_file_name () : std::string (); |
| 432 | |
| 7336 | 433 retval = s.empty () ? 103 : (val.is_user_function () ? 2 : 3); |
| 4009 | 434 } |
| 1421 | 435 } |
| 4016 | 436 |
| 5140 | 437 if (! (type == "var" || type == "builtin")) |
| 593 | 438 { |
| 5140 | 439 if (! retval) |
| 593 | 440 { |
| 5484 | 441 std::string file_name = lookup_autoload (name); |
| 442 | |
| 443 if (file_name.empty ()) | |
| 5832 | 444 file_name = load_path::find_fcn (name); |
| 5140 | 445 |
| 446 size_t len = file_name.length (); | |
| 447 | |
| 5832 | 448 if (len > 0) |
| 4437 | 449 { |
| 5140 | 450 if (type == "any" || type == "file") |
| 451 { | |
| 5864 | 452 if (len > 4 && (file_name.substr (len-4) == ".oct" |
| 453 || file_name.substr (len-4) == ".mex")) | |
| 5140 | 454 retval = 3; |
| 455 else | |
| 456 retval = 2; | |
| 457 } | |
| 4437 | 458 } |
| 593 | 459 } |
| 5140 | 460 |
| 461 if (! retval) | |
| 593 | 462 { |
| 5140 | 463 std::string file_name = file_in_path (name, ""); |
| 464 | |
| 465 if (file_name.empty ()) | |
| 466 file_name = name; | |
| 467 | |
| 468 file_stat fs (file_name); | |
| 469 | |
| 470 if (fs) | |
| 1421 | 471 { |
| 5140 | 472 if ((type == "any" || type == "file") |
| 473 && fs.is_reg ()) | |
| 474 { | |
| 475 retval = 2; | |
| 476 } | |
| 477 else if ((type == "any" || type == "dir") | |
| 478 && fs.is_dir ()) | |
| 479 { | |
| 480 retval = 7; | |
| 481 } | |
| 1421 | 482 } |
| 593 | 483 } |
| 484 } | |
| 485 | |
| 486 return retval; | |
| 487 } | |
| 488 | |
| 4962 | 489 #define GET_IDX(LEN) \ |
| 490 static_cast<int> ((LEN-1) * static_cast<double> (rand ()) / RAND_MAX) | |
| 491 | |
| 4954 | 492 std::string |
| 493 unique_symbol_name (const std::string& basename) | |
| 494 { | |
| 4962 | 495 static const std::string alpha |
| 496 = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"; | |
| 497 | |
| 498 static size_t len = alpha.length (); | |
| 499 | |
| 500 std::string nm = basename + alpha[GET_IDX (len)]; | |
| 501 | |
| 502 size_t pos = nm.length (); | |
| 503 | |
| 504 if (nm.substr (0, 2) == "__") | |
| 505 nm.append ("__"); | |
| 506 | |
| 507 while (symbol_exist (nm, "any")) | |
| 508 nm.insert (pos++, 1, alpha[GET_IDX (len)]); | |
| 509 | |
| 510 return nm; | |
| 4954 | 511 } |
| 512 | |
| 4016 | 513 DEFUN (exist, args, , |
| 514 "-*- texinfo -*-\n\ | |
| 515 @deftypefn {Built-in Function} {} exist (@var{name}, @var{type})\n\ | |
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516 Return 1 if the name exists as a variable, 2 if the name is an\n\ |
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517 absolute file name, an ordinary file in Octave's @code{path}, or (after\n\ |
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518 appending @samp{.m}) a function file in Octave's @code{path}, 3 if the\n\ |
| 5864 | 519 name is a @samp{.oct} or @samp{.mex} file in Octave's @code{path},\n\ |
| 520 5 if the name is a built-in function, 7 if the name is a directory, or 103\n\ | |
| 4016 | 521 if the name is a function not associated with a file (entered on\n\ |
| 522 the command line).\n\ | |
| 523 \n\ | |
| 524 Otherwise, return 0.\n\ | |
| 525 \n\ | |
| 526 This function also returns 2 if a regular file called @var{name}\n\ | |
| 5814 | 527 exists in Octave's search path. If you want information about\n\ |
| 4016 | 528 other types of files, you should use some combination of the functions\n\ |
| 529 @code{file_in_path} and @code{stat} instead.\n\ | |
| 530 \n\ | |
| 531 If the optional argument @var{type} is supplied, check only for\n\ | |
| 532 symbols of the specified type. Valid types are\n\ | |
| 533 \n\ | |
| 534 @table @samp\n\ | |
| 535 @item \"var\"\n\ | |
| 536 Check only for variables.\n\ | |
| 537 @item \"builtin\"\n\ | |
| 538 Check only for built-in functions.\n\ | |
| 539 @item \"file\"\n\ | |
| 540 Check only for files.\n\ | |
| 541 @item \"dir\"\n\ | |
| 542 Check only for directories.\n\ | |
| 543 @end table\n\ | |
| 544 @end deftypefn") | |
| 545 { | |
| 4233 | 546 octave_value retval = false; |
| 4016 | 547 |
| 548 int nargin = args.length (); | |
| 549 | |
| 550 if (nargin == 1 || nargin == 2) | |
| 551 { | |
| 552 std::string name = args(0).string_value (); | |
| 553 | |
| 554 if (! error_state) | |
| 555 { | |
| 556 std::string type | |
| 557 = (nargin == 2) ? args(1).string_value () : std::string ("any"); | |
| 558 | |
| 559 if (! error_state) | |
| 4233 | 560 retval = symbol_exist (name, type); |
| 4016 | 561 else |
| 562 error ("exist: expecting second argument to be a string"); | |
| 563 } | |
| 564 else | |
| 565 error ("exist: expecting first argument to be a string"); | |
| 566 } | |
| 567 else | |
| 5823 | 568 print_usage (); |
| 4016 | 569 |
| 570 return retval; | |
| 571 } | |
| 572 | |
| 2849 | 573 octave_value |
| 4988 | 574 lookup_function_handle (const std::string& nm) |
| 575 { | |
| 7336 | 576 octave_value val = symbol_table::varval (nm); |
| 577 | |
| 578 return val.is_function_handle () ? val : octave_value (); | |
| 4988 | 579 } |
| 580 | |
| 581 octave_value | |
| 5027 | 582 get_global_value (const std::string& nm, bool silent) |
| 2849 | 583 { |
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584 octave_value val = symbol_table::global_varval (nm); |
| 7336 | 585 |
| 586 if (val.is_undefined () && ! silent) | |
| 587 error ("get_global_by_name: undefined symbol `%s'", nm.c_str ()); | |
| 588 | |
| 589 return val; | |
| 2849 | 590 } |
| 591 | |
| 592 void | |
| 3523 | 593 set_global_value (const std::string& nm, const octave_value& val) |
| 2849 | 594 { |
|
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595 symbol_table::global_varref (nm) = val; |
| 2849 | 596 } |
| 597 | |
| 593 | 598 // Variable values. |
| 195 | 599 |
| 5791 | 600 octave_value |
| 601 set_internal_variable (bool& var, const octave_value_list& args, | |
| 5794 | 602 int nargout, const char *nm) |
| 5791 | 603 { |
| 5794 | 604 octave_value retval; |
| 605 | |
| 5800 | 606 int nargin = args.length (); |
| 607 | |
| 608 if (nargout > 0 || nargin == 0) | |
| 5794 | 609 retval = var; |
| 5791 | 610 |
| 611 if (nargin == 1) | |
| 612 { | |
| 613 bool bval = args(0).bool_value (); | |
| 614 | |
| 615 if (! error_state) | |
| 616 var = bval; | |
| 617 else | |
| 618 error ("%s: expecting arg to be a logical value", nm); | |
| 619 } | |
| 620 else if (nargin > 1) | |
| 5823 | 621 print_usage (); |
| 5791 | 622 |
| 623 return retval; | |
| 624 } | |
| 625 | |
| 626 octave_value | |
| 5794 | 627 set_internal_variable (char& var, const octave_value_list& args, |
| 628 int nargout, const char *nm) | |
| 5791 | 629 { |
| 5794 | 630 octave_value retval; |
| 631 | |
| 5800 | 632 int nargin = args.length (); |
| 633 | |
| 634 if (nargout > 0 || nargin == 0) | |
| 5794 | 635 retval = var; |
| 5791 | 636 |
| 637 if (nargin == 1) | |
| 638 { | |
| 639 std::string sval = args(0).string_value (); | |
| 640 | |
| 641 if (! error_state) | |
| 5794 | 642 { |
| 643 switch (sval.length ()) | |
| 644 { | |
| 645 case 1: | |
| 646 var = sval[0]; | |
| 647 break; | |
| 648 | |
| 649 case 0: | |
| 650 var = '\0'; | |
| 651 break; | |
| 652 | |
| 653 default: | |
| 654 error ("%s: argument must be a single character", nm); | |
| 655 break; | |
| 656 } | |
| 657 } | |
| 658 else | |
| 659 error ("%s: argument must be a single character", nm); | |
| 660 } | |
| 661 else if (nargin > 1) | |
| 5823 | 662 print_usage (); |
| 5794 | 663 |
| 664 return retval; | |
| 665 } | |
| 666 | |
| 667 octave_value | |
| 668 set_internal_variable (int& var, const octave_value_list& args, | |
| 669 int nargout, const char *nm, | |
| 670 int minval, int maxval) | |
| 671 { | |
| 672 octave_value retval; | |
| 673 | |
| 5800 | 674 int nargin = args.length (); |
| 675 | |
| 676 if (nargout > 0 || nargin == 0) | |
| 5794 | 677 retval = var; |
| 678 | |
| 679 if (nargin == 1) | |
| 680 { | |
| 681 int ival = args(0).int_value (); | |
| 682 | |
| 683 if (! error_state) | |
| 684 { | |
| 685 if (ival < minval) | |
| 686 error ("%s: expecting arg to be greater than %d", minval); | |
| 687 else if (ival > maxval) | |
| 688 error ("%s: expecting arg to be less than or equal to %d", maxval); | |
| 689 else | |
| 690 var = ival; | |
| 691 } | |
| 692 else | |
| 693 error ("%s: expecting arg to be an integer value", nm); | |
| 694 } | |
| 695 else if (nargin > 1) | |
| 5823 | 696 print_usage (); |
| 5794 | 697 |
| 698 return retval; | |
| 699 } | |
| 700 | |
| 701 octave_value | |
| 702 set_internal_variable (double& var, const octave_value_list& args, | |
| 703 int nargout, const char *nm, | |
| 704 double minval, double maxval) | |
| 705 { | |
| 706 octave_value retval; | |
| 707 | |
| 5800 | 708 int nargin = args.length (); |
| 709 | |
| 710 if (nargout > 0 || nargin == 0) | |
| 5794 | 711 retval = var; |
| 712 | |
| 713 if (nargin == 1) | |
| 714 { | |
| 715 double dval = args(0).scalar_value (); | |
| 716 | |
| 717 if (! error_state) | |
| 718 { | |
| 719 if (dval < minval) | |
| 720 error ("%s: expecting arg to be greater than %g", minval); | |
| 721 else if (dval > maxval) | |
| 722 error ("%s: expecting arg to be less than or equal to %g", maxval); | |
| 723 else | |
| 724 var = dval; | |
| 725 } | |
| 726 else | |
| 727 error ("%s: expecting arg to be a scalar value", nm); | |
| 728 } | |
| 729 else if (nargin > 1) | |
| 5823 | 730 print_usage (); |
| 5794 | 731 |
| 732 return retval; | |
| 733 } | |
| 734 | |
| 735 octave_value | |
| 736 set_internal_variable (std::string& var, const octave_value_list& args, | |
| 737 int nargout, const char *nm, bool empty_ok) | |
| 738 { | |
| 739 octave_value retval; | |
| 740 | |
| 5800 | 741 int nargin = args.length (); |
| 742 | |
| 743 if (nargout > 0 || nargin == 0) | |
| 5794 | 744 retval = var; |
| 745 | |
| 746 if (nargin == 1) | |
| 747 { | |
| 748 std::string sval = args(0).string_value (); | |
| 749 | |
| 750 if (! error_state) | |
| 751 { | |
| 752 if (empty_ok || ! sval.empty ()) | |
| 753 var = sval; | |
| 754 else | |
| 755 error ("%s: value must not be empty", nm); | |
| 756 } | |
| 5791 | 757 else |
| 758 error ("%s: expecting arg to be a character string", nm); | |
| 759 } | |
| 760 else if (nargin > 1) | |
| 5823 | 761 print_usage (); |
| 1 | 762 |
| 763 return retval; | |
| 764 } | |
| 765 | |
| 7336 | 766 struct |
| 767 whos_parameter | |
| 195 | 768 { |
| 7336 | 769 char command; |
| 770 char modifier; | |
| 771 int parameter_length; | |
| 772 int first_parameter_length; | |
| 773 int balance; | |
| 774 std::string text; | |
| 775 std::string line; | |
| 776 }; | |
| 777 | |
| 778 static void | |
| 779 print_descriptor (std::ostream& os, std::list<whos_parameter> params) | |
| 780 { | |
| 781 // This method prints a line of information on a given symbol | |
| 782 std::list<whos_parameter>::iterator i = params.begin (); | |
| 783 std::ostringstream param_buf; | |
| 784 | |
| 785 while (i != params.end ()) | |
| 195 | 786 { |
| 7336 | 787 whos_parameter param = *i; |
| 788 | |
| 789 if (param.command != '\0') | |
| 790 { | |
| 791 // Do the actual printing | |
| 792 switch (param.modifier) | |
| 793 { | |
| 794 case 'l': | |
| 795 os << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); | |
| 796 param_buf << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); | |
| 797 break; | |
| 798 | |
| 799 case 'r': | |
| 800 os << std::setiosflags (std::ios::right) << std::setw (param.parameter_length); | |
| 801 param_buf << std::setiosflags (std::ios::right) << std::setw (param.parameter_length); | |
| 802 break; | |
| 803 | |
| 804 case 'c': | |
| 805 if (param.command != 's') | |
| 806 { | |
| 807 os << std::setiosflags (std::ios::left) | |
| 808 << std::setw (param.parameter_length); | |
| 809 param_buf << std::setiosflags (std::ios::left) | |
| 810 << std::setw (param.parameter_length); | |
| 811 } | |
| 812 break; | |
| 813 | |
| 814 default: | |
| 815 os << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); | |
| 816 param_buf << std::setiosflags (std::ios::left) << std::setw (param.parameter_length); | |
| 817 } | |
| 818 | |
| 819 if (param.command == 's' && param.modifier == 'c') | |
| 820 { | |
| 821 int a, b; | |
| 822 | |
| 823 if (param.modifier == 'c') | |
| 824 { | |
| 825 a = param.first_parameter_length - param.balance; | |
| 826 a = (a < 0 ? 0 : a); | |
| 827 b = param.parameter_length - a - param.text . length (); | |
| 828 b = (b < 0 ? 0 : b); | |
| 829 os << std::setiosflags (std::ios::left) << std::setw (a) | |
| 830 << "" << std::resetiosflags (std::ios::left) << param.text | |
| 831 << std::setiosflags (std::ios::left) | |
| 832 << std::setw (b) << "" | |
| 833 << std::resetiosflags (std::ios::left); | |
| 834 param_buf << std::setiosflags (std::ios::left) << std::setw (a) | |
| 835 << "" << std::resetiosflags (std::ios::left) << param.line | |
| 836 << std::setiosflags (std::ios::left) | |
| 837 << std::setw (b) << "" | |
| 838 << std::resetiosflags (std::ios::left); | |
| 839 } | |
| 840 } | |
| 841 else | |
| 842 { | |
| 843 os << param.text; | |
| 844 param_buf << param.line; | |
| 845 } | |
| 846 os << std::resetiosflags (std::ios::left) | |
| 847 << std::resetiosflags (std::ios::right); | |
| 848 param_buf << std::resetiosflags (std::ios::left) | |
| 849 << std::resetiosflags (std::ios::right); | |
| 850 i++; | |
| 851 } | |
| 852 else | |
| 2975 | 853 { |
| 7336 | 854 os << param.text; |
| 855 param_buf << param.line; | |
| 856 i++; | |
| 2975 | 857 } |
| 195 | 858 } |
| 7336 | 859 |
| 860 os << param_buf.str (); | |
| 195 | 861 } |
| 862 | |
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863 class |
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864 symbol_info_list |
| 593 | 865 { |
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866 private: |
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867 struct symbol_info |
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868 { |
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869 symbol_info (const symbol_table::symbol_record& sr, |
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870 const std::string& expr_str = std::string (), |
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871 const octave_value& expr_val = octave_value ()) |
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872 : name (expr_str.empty () ? sr.name () : expr_str), |
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873 is_automatic (sr.is_automatic ()), |
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874 is_formal (sr.is_formal ()), |
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875 is_global (sr.is_global ()), |
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876 is_persistent (sr.is_persistent ()), |
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877 varval (expr_val.is_undefined () ? sr.varval () : expr_val) |
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878 { } |
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879 |
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880 void display_line (std::ostream& os, |
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881 const std::list<whos_parameter>& params) const |
| 593 | 882 { |
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883 dim_vector dims = varval.dims (); |
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884 std::string dims_str = dims.str (); |
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885 |
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886 std::list<whos_parameter>::const_iterator i = params.begin (); |
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887 |
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888 while (i != params.end ()) |
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889 { |
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890 whos_parameter param = *i; |
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891 |
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892 if (param.command != '\0') |
| 2294 | 893 { |
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894 // Do the actual printing. |
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895 |
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896 switch (param.modifier) |
| 2294 | 897 { |
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898 case 'l': |
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899 os << std::setiosflags (std::ios::left) |
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900 << std::setw (param.parameter_length); |
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901 break; |
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902 |
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903 case 'r': |
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904 os << std::setiosflags (std::ios::right) |
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905 << std::setw (param.parameter_length); |
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906 break; |
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907 |
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908 case 'c': |
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909 if (param.command == 's') |
| 7336 | 910 { |
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911 int front = param.first_parameter_length |
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912 - dims_str.find ('x'); |
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913 int back = param.parameter_length |
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914 - dims_str.length () |
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915 - front; |
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916 front = (front > 0) ? front : 0; |
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917 back = (back > 0) ? back : 0; |
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918 |
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919 os << std::setiosflags (std::ios::left) |
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920 << std::setw (front) |
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921 << "" |
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922 << std::resetiosflags (std::ios::left) |
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923 << dims_str |
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924 << std::setiosflags (std::ios::left) |
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925 << std::setw (back) |
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926 << "" |
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927 << std::resetiosflags (std::ios::left); |
| 7336 | 928 } |
| 2294 | 929 else |
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930 { |
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931 os << std::setiosflags (std::ios::left) |
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932 << std::setw (param.parameter_length); |
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933 } |
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934 break; |
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|
935 |
|
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7531
diff
changeset
|
936 default: |
|
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7531
diff
changeset
|
937 error ("whos_line_format: modifier `%c' unknown", |
|
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parents:
7531
diff
changeset
|
938 param.modifier); |
|
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7531
diff
changeset
|
939 |
|
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diff
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|
940 os << std::setiosflags (std::ios::right) |
|
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diff
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|
941 << std::setw (param.parameter_length); |
| 2294 | 942 } |
|
7586
84122fb29c75
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diff
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|
943 |
|
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7531
diff
changeset
|
944 switch (param.command) |
|
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7531
diff
changeset
|
945 { |
|
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7531
diff
changeset
|
946 case 'a': |
|
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7531
diff
changeset
|
947 { |
|
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7531
diff
changeset
|
948 char tmp[5]; |
|
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7531
diff
changeset
|
949 |
|
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|
950 tmp[0] = (is_automatic ? 'a' : ' '); |
|
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diff
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|
951 tmp[1] = (is_formal ? 'f' : ' '); |
|
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|
952 tmp[2] = (is_global ? 'g' : ' '); |
|
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|
953 tmp[3] = (is_persistent ? 'p' : ' '); |
|
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diff
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|
954 tmp[4] = 0; |
|
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7531
diff
changeset
|
955 |
|
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diff
changeset
|
956 os << tmp; |
|
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7531
diff
changeset
|
957 } |
|
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diff
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|
958 break; |
|
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7531
diff
changeset
|
959 |
|
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diff
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|
960 case 'b': |
|
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|
961 os << varval.byte_size (); |
|
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7531
diff
changeset
|
962 break; |
|
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7531
diff
changeset
|
963 |
|
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diff
changeset
|
964 case 'c': |
|
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|
965 os << varval.class_name (); |
|
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7531
diff
changeset
|
966 break; |
|
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7531
diff
changeset
|
967 |
|
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7531
diff
changeset
|
968 case 'e': |
|
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7531
diff
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|
969 os << varval.capacity (); |
|
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diff
changeset
|
970 break; |
|
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7531
diff
changeset
|
971 |
|
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diff
changeset
|
972 case 'n': |
|
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7531
diff
changeset
|
973 os << name; |
|
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7531
diff
changeset
|
974 break; |
|
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7531
diff
changeset
|
975 |
|
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diff
changeset
|
976 case 's': |
|
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diff
changeset
|
977 if (param.modifier != 'c') |
|
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diff
changeset
|
978 os << dims_str; |
|
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7531
diff
changeset
|
979 break; |
|
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7531
diff
changeset
|
980 |
|
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7531
diff
changeset
|
981 case 't': |
|
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diff
changeset
|
982 os << varval.type_name (); |
|
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7531
diff
changeset
|
983 break; |
|
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7531
diff
changeset
|
984 |
|
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diff
changeset
|
985 default: |
|
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7531
diff
changeset
|
986 error ("whos_line_format: command `%c' unknown", |
|
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7531
diff
changeset
|
987 param.command); |
|
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7531
diff
changeset
|
988 } |
|
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7531
diff
changeset
|
989 |
|
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7531
diff
changeset
|
990 os << std::resetiosflags (std::ios::left) |
|
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diff
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|
991 << std::resetiosflags (std::ios::right); |
|
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7531
diff
changeset
|
992 i++; |
|
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7531
diff
changeset
|
993 } |
|
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7531
diff
changeset
|
994 else |
|
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7531
diff
changeset
|
995 { |
|
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7531
diff
changeset
|
996 os << param.text; |
|
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7531
diff
changeset
|
997 i++; |
| 2294 | 998 } |
| 593 | 999 } |
| 1000 } | |
|
7586
84122fb29c75
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diff
changeset
|
1001 |
|
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7531
diff
changeset
|
1002 std::string name; |
|
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7531
diff
changeset
|
1003 bool is_automatic; |
|
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7531
diff
changeset
|
1004 bool is_formal; |
|
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diff
changeset
|
1005 bool is_global; |
|
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7531
diff
changeset
|
1006 bool is_persistent; |
|
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7531
diff
changeset
|
1007 octave_value varval; |
|
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7531
diff
changeset
|
1008 }; |
|
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diff
changeset
|
1009 |
|
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diff
changeset
|
1010 public: |
|
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diff
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|
1011 symbol_info_list (void) : lst () { } |
|
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diff
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|
1012 |
|
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diff
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|
1013 symbol_info_list (const symbol_info_list& sil) : lst (sil.lst) { } |
|
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diff
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|
1014 |
|
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diff
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|
1015 symbol_info_list& operator = (const symbol_info_list& sil) |
|
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diff
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|
1016 { |
|
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diff
changeset
|
1017 if (this != &sil) |
|
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diff
changeset
|
1018 lst = sil.lst; |
|
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diff
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|
1019 |
|
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7531
diff
changeset
|
1020 return *this; |
|
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7531
diff
changeset
|
1021 } |
|
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diff
changeset
|
1022 |
|
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diff
changeset
|
1023 ~symbol_info_list (void) { } |
|
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diff
changeset
|
1024 |
|
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diff
changeset
|
1025 void append (const symbol_table::symbol_record& sr) |
|
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7531
diff
changeset
|
1026 { |
|
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7531
diff
changeset
|
1027 lst.push_back (symbol_info (sr)); |
|
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7531
diff
changeset
|
1028 } |
|
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diff
changeset
|
1029 |
|
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diff
changeset
|
1030 void append (const symbol_table::symbol_record& sr, |
|
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diff
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|
1031 const std::string& expr_str, |
|
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diff
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|
1032 const octave_value& expr_val) |
|
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7531
diff
changeset
|
1033 { |
|
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7531
diff
changeset
|
1034 lst.push_back (symbol_info (sr, expr_str, expr_val)); |
|
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7531
diff
changeset
|
1035 } |
|
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diff
changeset
|
1036 |
|
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changeset
|
1037 size_t size (void) const { return lst.size (); } |
|
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diff
changeset
|
1038 |
|
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diff
changeset
|
1039 bool empty (void) const { return lst.empty (); } |
|
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diff
changeset
|
1040 |
|
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diff
changeset
|
1041 Octave_map |
|
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changeset
|
1042 map_value (const std::string& caller_function_name, int nesting_level) const |
|
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|
1043 { |
|
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changeset
|
1044 size_t len = lst.size (); |
|
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diff
changeset
|
1045 |
|
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|
1046 Array<octave_value> name_info (len, 1); |
|
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diff
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|
1047 Array<octave_value> size_info (len, 1); |
|
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|
1048 Array<octave_value> bytes_info (len, 1); |
|
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|
1049 Array<octave_value> class_info (len, 1); |
|
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diff
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|
1050 Array<octave_value> global_info (len, 1); |
|
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|
1051 Array<octave_value> sparse_info (len, 1); |
|
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|
1052 Array<octave_value> complex_info (len, 1); |
|
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|
1053 Array<octave_value> nesting_info (len, 1); |
|
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|
1054 Array<octave_value> persistent_info (len, 1); |
|
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diff
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|
1055 |
|
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|
1056 std::list<symbol_info>::const_iterator p = lst.begin (); |
|
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diff
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|
1057 |
|
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diff
changeset
|
1058 for (size_t j = 0; j < len; j++) |
|
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diff
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|
1059 { |
|
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diff
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|
1060 const symbol_info& si = *p++; |
|
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diff
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|
1061 |
|
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diff
changeset
|
1062 Octave_map ni; |
|
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diff
changeset
|
1063 |
|
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changeset
|
1064 ni.assign ("function", caller_function_name); |
|
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|
1065 ni.assign ("level", nesting_level); |
|
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|
1066 |
|
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1067 name_info(j) = si.name; |
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1068 global_info(j) = si.is_global; |
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1069 persistent_info(j) = si.is_persistent; |
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1070 |
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1071 octave_value val = si.varval; |
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1072 |
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1073 size_info(j) = val.size (); |
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1074 bytes_info(j) = val.byte_size (); |
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1075 class_info(j) = val.class_name (); |
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1076 sparse_info(j) = val.is_sparse_type (); |
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1077 complex_info(j) = val.is_complex_type (); |
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1078 nesting_info(j) = ni; |
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1079 } |
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1080 |
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1081 Octave_map info; |
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1082 |
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1083 info.assign ("name", name_info); |
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1084 info.assign ("size", size_info); |
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1085 info.assign ("bytes", bytes_info); |
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1086 info.assign ("class", class_info); |
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1087 info.assign ("global", global_info); |
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1088 info.assign ("sparse", sparse_info); |
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1089 info.assign ("complex", complex_info); |
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1090 info.assign ("nesting", nesting_info); |
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1091 info.assign ("persistent", persistent_info); |
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1092 |
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1093 return info; |
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1094 } |
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1095 |
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1096 void display (std::ostream& os) |
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1097 { |
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1098 if (! lst.empty ()) |
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1099 { |
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1100 size_t bytes = 0; |
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1101 size_t elements = 0; |
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1102 |
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1103 std::list<whos_parameter> params = parse_whos_line_format (); |
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1104 |
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1105 print_descriptor (os, params); |
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1106 |
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1107 octave_stdout << "\n"; |
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1108 |
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1109 for (std::list<symbol_info>::const_iterator p = lst.begin (); |
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1110 p != lst.end (); p++) |
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1111 { |
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1112 p->display_line (os, params); |
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1113 |
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1114 octave_value val = p->varval; |
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1115 |
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1116 elements += val.capacity (); |
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1117 bytes += val.byte_size (); |
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1118 } |
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1119 |
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1120 os << "\nTotal is " << elements |
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1121 << (elements == 1 ? " element" : " elements") |
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1122 << " using " << bytes << (bytes == 1 ? " byte" : " bytes") |
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1123 << "\n"; |
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1124 } |
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1125 } |
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1126 |
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1127 // Parse the string whos_line_format, and return a parameter list, |
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1128 // containing all information needed to print the given |
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1129 // attributtes of the symbols. |
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1130 std::list<whos_parameter> parse_whos_line_format (void) |
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1131 { |
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1132 int idx; |
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1133 size_t format_len = Vwhos_line_format.length (); |
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1134 char garbage; |
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1135 std::list<whos_parameter> params; |
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1136 |
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1137 size_t bytes1; |
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1138 int elements1; |
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1139 |
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1140 std::string param_string = "abcenst"; |
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1141 Array<int> param_length (dim_vector (param_string.length (), 1)); |
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1142 Array<std::string> param_names (dim_vector (param_string.length (), 1)); |
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1143 size_t pos_a, pos_b, pos_c, pos_e, pos_n, pos_s, pos_t; |
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1144 |
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1145 pos_a = param_string.find ('a'); // Attributes |
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1146 pos_b = param_string.find ('b'); // Bytes |
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1147 pos_c = param_string.find ('c'); // Class |
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1148 pos_e = param_string.find ('e'); // Elements |
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1149 pos_n = param_string.find ('n'); // Name |
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1150 pos_s = param_string.find ('s'); // Size |
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1151 pos_t = param_string.find ('t'); // Type |
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1152 |
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1153 param_names(pos_a) = "Attr"; |
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1154 param_names(pos_b) = "Bytes"; |
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1155 param_names(pos_c) = "Class"; |
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1156 param_names(pos_e) = "Elements"; |
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1157 param_names(pos_n) = "Name"; |
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1158 param_names(pos_s) = "Size"; |
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1159 param_names(pos_t) = "Type"; |
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1160 |
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1161 for (size_t i = 0; i < param_string.length (); i++) |
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1162 param_length(i) = param_names(i) . length (); |
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1163 |
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1164 // Calculating necessary spacing for name column, |
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1165 // bytes column, elements column and class column |
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1166 |
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1167 for (std::list<symbol_info>::const_iterator p = lst.begin (); |
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1168 p != lst.end (); p++) |
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1169 { |
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1170 std::stringstream ss1, ss2; |
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1171 std::string str; |
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1172 |
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1173 str = p->name; |
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1174 param_length(pos_n) = ((str.length () |
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1175 > static_cast<size_t> (param_length(pos_n))) |
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1176 ? str.length () : param_length(pos_n)); |
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1177 |
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1178 octave_value val = p->varval; |
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1179 |
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1180 str = val.type_name (); |
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1181 param_length(pos_t) = ((str.length () |
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1182 > static_cast<size_t> (param_length(pos_t))) |
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1183 ? str.length () : param_length(pos_t)); |
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1184 |
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1185 elements1 = val.capacity (); |
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1186 ss1 << elements1; |
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1187 str = ss1.str (); |
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1188 param_length(pos_e) = ((str.length () |
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1189 > static_cast<size_t> (param_length(pos_e))) |
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1190 ? str.length () : param_length(pos_e)); |
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1191 |
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1192 bytes1 = val.byte_size (); |
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1193 ss2 << bytes1; |
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1194 str = ss2.str (); |
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1195 param_length(pos_b) = ((str.length () |
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1196 > static_cast<size_t> (param_length(pos_b))) |
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1197 ? str.length () : param_length (pos_b)); |
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1198 } |
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1199 |
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1200 idx = 0; |
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1201 while (static_cast<size_t> (idx) < format_len) |
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1202 { |
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1203 whos_parameter param; |
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1204 param.command = '\0'; |
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1205 |
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1206 if (Vwhos_line_format[idx] == '%') |
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1207 { |
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1208 bool error_encountered = false; |
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1209 param.modifier = 'r'; |
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1210 param.parameter_length = 0; |
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1211 |
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1212 int a = 0, b = -1, balance = 1; |
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1213 unsigned int items; |
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1214 size_t pos; |
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1215 std::string cmd; |
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1216 |
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1217 // Parse one command from whos_line_format |
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1218 cmd = Vwhos_line_format.substr (idx, Vwhos_line_format.length ()); |
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1219 pos = cmd.find (';'); |
| 8021 | 1220 if (pos != std::string::npos) |
|
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1221 cmd = cmd.substr (0, pos+1); |
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1222 else |
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1223 error ("parameter without ; in whos_line_format"); |
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1224 |
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1225 idx += cmd.length (); |
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1226 |
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1227 // FIXME -- use iostream functions instead of sscanf! |
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1228 |
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1229 if (cmd.find_first_of ("crl") != 1) |
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1230 items = sscanf (cmd.c_str (), "%c%c:%d:%d:%d;", |
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1231 &garbage, ¶m.command, &a, &b, &balance); |
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1232 else |
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1233 items = sscanf (cmd.c_str (), "%c%c%c:%d:%d:%d;", |
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1234 &garbage, ¶m.modifier, ¶m.command, |
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1235 &a, &b, &balance) - 1; |
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1236 |
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1237 if (items < 2) |
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1238 { |
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1239 error ("whos_line_format: parameter structure without command in whos_line_format"); |
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1240 error_encountered = true; |
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1241 } |
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1242 |
|
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1243 // Insert data into parameter |
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1244 param.first_parameter_length = 0; |
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1245 pos = param_string.find (param.command); |
| 8021 | 1246 if (pos != std::string::npos) |
|
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1247 { |
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1248 param.parameter_length = param_length(pos); |
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1249 param.text = param_names(pos); |
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1250 param.line.assign (param_names(pos).length (), '='); |
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1251 |
|
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1252 param.parameter_length = (a > param.parameter_length |
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1253 ? a : param.parameter_length); |
|
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1254 if (param.command == 's' && param.modifier == 'c' && b > 0) |
|
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1255 param.first_parameter_length = b; |
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1256 } |
|
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1257 else |
|
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1258 { |
|
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1259 error ("whos_line_format: '%c' is not a command", |
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1260 param.command); |
|
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1261 error_encountered = true; |
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1262 } |
|
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1263 |
|
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1264 if (param.command == 's') |
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1265 { |
|
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1266 // Have to calculate space needed for printing |
|
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1267 // matrix dimensions Space needed for Size column is |
|
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1268 // hard to determine in prior, because it depends on |
|
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1269 // dimensions to be shown. That is why it is |
|
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1270 // recalculated for each Size-command int first, |
|
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1271 // rest = 0, total; |
|
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1272 int rest = 0; |
|
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1273 int first = param.first_parameter_length; |
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1274 int total = param.parameter_length; |
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1275 |
|
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1276 for (std::list<symbol_info>::const_iterator p = lst.begin (); |
|
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1277 p != lst.end (); p++) |
|
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1278 { |
|
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1279 octave_value val = p->varval; |
|
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1280 dim_vector dims = val.dims (); |
|
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1281 std::string dims_str = dims.str (); |
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1282 int first1 = dims_str.find ('x'); |
|
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1283 int total1 = dims_str.length (); |
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1284 int rest1 = total1 - first1; |
|
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1285 rest = (rest1 > rest ? rest1 : rest); |
|
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1286 first = (first1 > first ? first1 : first); |
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1287 total = (total1 > total ? total1 : total); |
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1288 } |
|
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1289 |
|
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1290 if (param.modifier == 'c') |
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1291 { |
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1292 if (first < balance) |
|
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1293 first += balance - first; |
|
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1294 if (rest + balance < param.parameter_length) |
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1295 rest += param.parameter_length - rest - balance; |
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1296 |
|
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1297 param.parameter_length = first + rest; |
|
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1298 param.first_parameter_length = first; |
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1299 param.balance = balance; |
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1300 } |
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1301 else |
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1302 { |
|
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1303 param.parameter_length = total; |
|
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1304 param.first_parameter_length = 0; |
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1305 } |
|
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1306 } |
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1307 else if (param.modifier == 'c') |
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1308 { |
|
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1309 error ("whos_line_format: modifier 'c' not available for command '%c'", |
|
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1310 param.command); |
|
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1311 error_encountered = true; |
|
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1312 } |
|
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1313 |
|
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1314 // What happens if whos_line_format contains negative numbers |
|
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|
1315 // at param_length positions? |
|
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1316 param.balance = (b < 0 ? 0 : param.balance); |
|
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1317 param.first_parameter_length = (b < 0 ? 0 : |
|
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|
1318 param.first_parameter_length); |
|
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|
1319 param.parameter_length = (a < 0 |
|
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|
1320 ? 0 |
|
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|
1321 : (param.parameter_length |
|
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|
1322 < param_length(pos_s) |
|
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|
1323 ? param_length(pos_s) |
|
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|
1324 : param.parameter_length)); |
|
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|
1325 |
|
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|
1326 // Parameter will not be pushed into parameter list if ... |
|
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|
1327 if (! error_encountered) |
|
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|
1328 params.push_back (param); |
|
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|
1329 } |
|
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|
1330 else |
|
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|
1331 { |
|
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|
1332 // Text string, to be printed as it is ... |
|
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|
1333 std::string text; |
|
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|
1334 size_t pos; |
|
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|
1335 text = Vwhos_line_format.substr (idx, Vwhos_line_format.length ()); |
|
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|
1336 pos = text.find ('%'); |
| 8021 | 1337 if (pos != std::string::npos) |
|
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1338 text = text.substr (0, pos); |
|
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|
1339 |
|
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|
1340 // Push parameter into list ... |
|
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|
1341 idx += text.length (); |
|
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|
1342 param.text=text; |
|
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|
1343 param.line.assign (text.length(), ' '); |
| 7336 | 1344 params.push_back (param); |
|
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|
1345 } |
|
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|
1346 } |
|
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|
1347 |
|
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|
1348 return params; |
|
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|
1349 } |
|
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|
1350 |
|
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|
1351 private: |
|
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|
1352 std::list<symbol_info> lst; |
|
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1353 |
|
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|
1354 }; |
| 5659 | 1355 |
| 4435 | 1356 static octave_value |
| 7336 | 1357 do_who (int argc, const string_vector& argv, bool return_list, |
|
8131
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1358 bool verbose = false, std::string msg = std::string ()) |
| 529 | 1359 { |
| 4435 | 1360 octave_value retval; |
| 529 | 1361 |
| 3523 | 1362 std::string my_name = argv[0]; |
| 584 | 1363 |
| 7336 | 1364 bool global_only = false; |
|
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1365 bool have_regexp = false; |
| 7336 | 1366 |
| 1857 | 1367 int i; |
| 1368 for (i = 1; i < argc; i++) | |
| 529 | 1369 { |
|
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1370 if (argv[i] == "-file") |
|
8131
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1371 { |
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1372 // FIXME. This is an inefficient manner to implement this as the |
|
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1373 // variables are loaded in to a temporary context and then treated. |
|
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1374 // It would be better to refecat symbol_info_list to not store the |
|
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1375 // symbol records and then use it in load-save.cc (do_load) to |
|
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1376 // implement this option there so that the variables are never |
|
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1377 // stored at all. |
|
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1378 if (i == argc - 1) |
|
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1379 error ("whos: -file argument must be followed by a file name"); |
|
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1380 else |
|
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|
1381 { |
|
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1382 std::string nm = argv [i + 1]; |
|
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1383 |
|
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1384 symbol_table::scope_id tmp_scope = symbol_table::alloc_scope (); |
|
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1385 |
|
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|
1386 unwind_protect::begin_frame ("do_who_file"); |
|
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1387 |
|
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1388 symbol_table::push_scope (tmp_scope); |
|
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|
1389 symbol_table::push_context (); |
|
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|
1390 octave_call_stack::push (0); |
|
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|
1391 |
|
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|
1392 unwind_protect::add (octave_call_stack::unwind_pop, 0); |
|
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|
1393 |
|
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|
1394 unwind_protect::add (symbol_table::clear_variables); |
|
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1395 |
|
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|
1396 feval ("load", octave_value (nm), 0); |
|
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|
1397 |
|
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|
1398 if (! error_state) |
|
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|
1399 { |
|
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|
1400 std::string newmsg = std::string ("Variables in the file ") + |
|
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|
1401 nm + ":\n\n"; |
|
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|
1402 |
|
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|
1403 retval = do_who (i, argv, return_list, verbose, newmsg); |
|
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|
1404 } |
|
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|
1405 |
|
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|
1406 unwind_protect::run_frame ("do_who_file"); |
|
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|
1407 |
|
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|
1408 symbol_table::erase_scope (tmp_scope); |
|
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|
1409 } |
|
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|
1410 |
|
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|
1411 return retval; |
|
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|
1412 } |
|
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|
1413 else if (argv[i] == "-regexp") |
|
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|
1414 have_regexp = true; |
| 7336 | 1415 else if (argv[i] == "global") |
| 1416 global_only = true; | |
| 1755 | 1417 else if (argv[i][0] == '-') |
| 1418 warning ("%s: unrecognized option `%s'", my_name.c_str (), | |
| 1419 argv[i].c_str ()); | |
| 529 | 1420 else |
| 867 | 1421 break; |
| 529 | 1422 } |
| 1423 | |
| 7336 | 1424 int npats = argc - i; |
|
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|
1425 string_vector pats; |
| 7336 | 1426 if (npats > 0) |
| 3248 | 1427 { |
|
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|
1428 pats.resize (npats); |
| 7336 | 1429 for (int j = 0; j < npats; j++) |
| 1430 pats[j] = argv[i+j]; | |
| 3248 | 1431 } |
| 7336 | 1432 else |
|
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|
1433 { |
|
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|
1434 pats.resize (++npats); |
|
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|
1435 pats[0] = "*"; |
|
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|
1436 } |
| 7336 | 1437 |
|
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|
1438 symbol_info_list symbol_stats; |
|
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|
1439 std::list<std::string> symbol_names; |
|
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|
1440 |
|
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|
1441 for (int j = 0; j < npats; j++) |
|
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|
1442 { |
|
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|
1443 std::string pat = pats[j]; |
|
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|
1444 |
|
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|
1445 if (have_regexp) |
|
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|
1446 { |
|
7752
40c428ea3408
initial implementation of dbup and dbdown
John W. Eaton <jwe@octave.org>
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7626
diff
changeset
|
1447 std::list<symbol_table::symbol_record> tmp = global_only |
|
7779
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|
1448 ? symbol_table::regexp_global_variables (pat) |
|
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|
1449 : symbol_table::regexp_variables (pat); |
|
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|
1450 |
|
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changeset
|
1451 for (std::list<symbol_table::symbol_record>::const_iterator p = tmp.begin (); |
|
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changeset
|
1452 p != tmp.end (); p++) |
|
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|
1453 { |
|
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changeset
|
1454 if (verbose) |
|
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changeset
|
1455 symbol_stats.append (*p); |
|
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changeset
|
1456 else |
|
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changeset
|
1457 symbol_names.push_back (p->name ()); |
|
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diff
changeset
|
1458 } |
|
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diff
changeset
|
1459 } |
|
7779
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changeset
|
1460 else |
|
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changeset
|
1461 { |
|
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changeset
|
1462 size_t pos = pat.find_first_of (".({"); |
|
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parents:
7761
diff
changeset
|
1463 |
| 8021 | 1464 if (pos != std::string::npos && pos > 0) |
|
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1465 { |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1466 if (verbose) |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1467 { |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1468 // NOTE: we can only display information for |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1469 // expressions based on global values if the variable is |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1470 // global in the current scope because we currently have |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1471 // no way of looking up the base value in the global |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1472 // scope and then evaluating the arguments in the |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1473 // current scope. |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1474 |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1475 std::string base_name = pat.substr (0, pos); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1476 |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1477 if (symbol_table::is_variable (base_name)) |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1478 { |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1479 symbol_table::symbol_record sr |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1480 = symbol_table::find_symbol (base_name); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1481 |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1482 if (! global_only || sr.is_global ()) |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1483 { |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1484 int parse_status; |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1485 |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1486 octave_value expr_val |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1487 = eval_string (pat, true, parse_status); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1488 |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1489 if (! error_state) |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1490 symbol_stats.append (sr, pat, expr_val); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1491 else |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1492 return retval; |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1493 } |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1494 } |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1495 } |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1496 } |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1497 else |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1498 { |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1499 std::list<symbol_table::symbol_record> tmp = global_only |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1500 ? symbol_table::glob_global_variables (pat) |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1501 : symbol_table::glob_variables (pat); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1502 |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1503 for (std::list<symbol_table::symbol_record>::const_iterator p = tmp.begin (); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1504 p != tmp.end (); p++) |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1505 { |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1506 if (verbose) |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1507 symbol_stats.append (*p); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1508 else |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1509 symbol_names.push_back (p->name ()); |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1510 } |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1511 } |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1512 } |
|
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1513 } |
| 529 | 1514 |
| 4435 | 1515 if (return_list) |
| 529 | 1516 { |
| 7336 | 1517 if (verbose) |
| 4435 | 1518 { |
|
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1519 std::string caller_function_name; |
|
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1520 octave_function *caller = octave_call_stack::caller (); |
|
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1521 if (caller) |
|
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1522 caller_function_name = caller->name (); |
|
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1523 |
|
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1524 retval = symbol_stats.map_value (caller_function_name, 1); |
| 4435 | 1525 } |
| 1526 else | |
|
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1527 retval = Cell (string_vector (symbol_names)); |
| 529 | 1528 } |
|
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1529 else if (! (symbol_stats.empty () && symbol_names.empty ())) |
| 529 | 1530 { |
|
8131
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1531 if (msg.length () == 0) |
|
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1532 if (global_only) |
|
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1533 octave_stdout << "Global variables:\n\n"; |
|
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1534 else |
|
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1535 octave_stdout << "Variables in the current scope:\n\n"; |
| 7336 | 1536 else |
|
8131
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1537 octave_stdout << msg; |
| 7336 | 1538 |
| 1539 if (verbose) | |
|
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1540 symbol_stats.display (octave_stdout); |
| 7336 | 1541 else |
| 4435 | 1542 { |
|
7586
84122fb29c75
whos: handle index expressions
John W. Eaton <jwe@octave.org>
parents:
7531
diff
changeset
|
1543 string_vector names (symbol_names); |
| 7336 | 1544 |
| 1545 names.list_in_columns (octave_stdout); | |
| 4435 | 1546 } |
| 1547 | |
| 7336 | 1548 octave_stdout << "\n"; |
| 529 | 1549 } |
| 1550 | |
| 581 | 1551 return retval; |
| 1552 } | |
| 1553 | |
|
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8677
diff
changeset
|
1554 DEFUN (who, args, nargout, |
| 3361 | 1555 "-*- texinfo -*-\n\ |
| 1556 @deffn {Command} who options pattern @dots{}\n\ | |
| 1557 @deffnx {Command} whos options pattern @dots{}\n\ | |
| 1558 List currently defined symbols matching the given patterns. The\n\ | |
| 1559 following are valid options. They may be shortened to one character but\n\ | |
| 1560 may not be combined.\n\ | |
| 1561 \n\ | |
| 1562 @table @code\n\ | |
|
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1563 @item global\n\ |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1564 List the variables in the global scope rather than the current scope.\n\ |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1565 @item -regexp\n\ |
|
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1566 The patterns are considered as regular expressions and will be used\n\ |
|
9037
4cb9f994dcec
Documentation cleanup of var.texi, expr.texi, eval.texi
Rik <rdrider0-list@yahoo.com>
parents:
8920
diff
changeset
|
1567 for matching the variables to display. The same pattern syntax as for\n\ |
|
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1568 the @code{regexp} function is used.\n\ |
|
8131
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1569 @item -file\n\ |
|
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1570 The following argument is treated as a filename, and the variables that\n\ |
|
10b63c4fd413
Add -file option to who/whos
David Bateman <dbateman@free.fr>
parents:
8083
diff
changeset
|
1571 are found within this file are listed.\n\ |
| 3361 | 1572 @end table\n\ |
| 1573 \n\ | |
| 1574 Valid patterns are the same as described for the @code{clear} command\n\ | |
| 1575 above. If no patterns are supplied, all symbols from the given category\n\ | |
| 1576 are listed. By default, only user defined functions and variables\n\ | |
| 1577 visible in the local scope are displayed.\n\ | |
| 1578 \n\ | |
| 1579 The command @kbd{whos} is equivalent to @kbd{who -long}.\n\ | |
|
7779
791231dac333
Add regexp matching to Fwho and Fclear
David Bateman <dbateman@free.fr>
parents:
7761
diff
changeset
|
1580 @seealso{regexp}\n\ |
| 3361 | 1581 @end deffn") |
| 581 | 1582 { |
| 4435 | 1583 octave_value retval; |
| 581 | 1584 |
| 4435 | 1585 if (nargout < 2) |
| 1586 { | |
| 1587 int argc = args.length () + 1; | |
| 1588 | |
| 1589 string_vector argv = args.make_argv ("who"); | |
| 1755 | 1590 |
| 7336 | 1591 if (! error_state) |
| 1592 retval = do_who (argc, argv, nargout == 1); | |
| 4435 | 1593 } |
| 1594 else | |
| 5823 | 1595 print_usage (); |
| 581 | 1596 |
| 529 | 1597 return retval; |
| 1598 } | |
| 1599 | |
|
8746
5dd06f19e9be
handle commands in the lexer
John W. Eaton <jwe@octave.org>
parents:
8677
diff
changeset
|
1600 DEFUN (whos, args, nargout, |
| 3458 | 1601 "-*- texinfo -*-\n\ |
| 1602 @deffn {Command} whos options pattern @dots{}\n\ | |
| 1603 See who.\n\ | |
| 1604 @end deffn") | |
| 581 | 1605 { |
| 4435 | 1606 octave_value retval; |
| 712 | 1607 |
| 4435 | 1608 if (nargout < 2) |
| 1609 { | |
| 7336 | 1610 int argc = args.length () + 1; |
| 1611 | |
| 1612 string_vector argv = args.make_argv ("whos"); | |
| 1613 | |
| 1614 if (! error_state) | |
| 1615 retval = do_who (argc, argv, nargout == 1, true); | |
| 4435 | 1616 } |
| 1617 else | |
| 5823 | 1618 print_usage (); |
| 581 | 1619 |
| 1620 return retval; | |
| 1621 } | |
| 1622 | |
| 593 | 1623 // Defining variables. |
| 1624 | |
| 1162 | 1625 void |
| 2856 | 1626 bind_ans (const octave_value& val, bool print) |
| 1162 | 1627 { |
| 7336 | 1628 static std::string ans = "ans"; |
| 1162 | 1629 |
| 2978 | 1630 if (val.is_defined ()) |
| 1631 { | |
|
7531
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1632 if (val.is_cs_list ()) |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1633 { |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1634 octave_value_list lst = val.list_value (); |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1635 |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1636 for (octave_idx_type i = 0; i < lst.length (); i++) |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1637 bind_ans (lst(i), print); |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1638 } |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1639 else |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1640 { |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1641 symbol_table::varref (ans) = val; |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1642 |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1643 if (print) |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1644 val.print_with_name (octave_stdout, ans); |
|
c9a476b1e664
correctly set ans for cs-lists and simplify printing them
John W. Eaton <jwe@octave.org>
parents:
7347
diff
changeset
|
1645 } |
| 2978 | 1646 } |
| 1162 | 1647 } |
| 1648 | |
| 593 | 1649 void |
| 5794 | 1650 bind_internal_variable (const std::string& fname, const octave_value& val) |
| 593 | 1651 { |
| 5794 | 1652 octave_value_list args; |
| 1653 | |
| 1654 args(0) = val; | |
| 1655 | |
| 1656 feval (fname, args, 0); | |
| 529 | 1657 } |
| 1658 | |
| 4319 | 1659 void |
| 7336 | 1660 mlock (void) |
| 4319 | 1661 { |
|
8083
16ab78b816bc
variables.cc (mlock): lock current function
John W. Eaton <jwe@octave.org>
parents:
8021
diff
changeset
|
1662 octave_function *fcn = octave_call_stack::current (); |
| 7336 | 1663 |
| 1664 if (fcn) | |
| 1665 fcn->lock (); | |
| 1666 else | |
| 1667 error ("mlock: invalid use outside a function"); | |
| 4319 | 1668 } |
| 1669 | |
| 1670 void | |
| 1671 munlock (const std::string& nm) | |
| 1672 { | |
| 7336 | 1673 octave_value val = symbol_table::find_function (nm); |
| 1674 | |
| 1675 if (val.is_defined ()) | |
| 1676 { | |
| 1677 octave_function *fcn = val.function_value (); | |
| 1678 | |
| 1679 if (fcn) | |
| 1680 fcn->unlock (); | |
| 1681 } | |
| 4319 | 1682 } |
| 1683 | |
| 1684 bool | |
| 1685 mislocked (const std::string& nm) | |
| 1686 { | |
| 7336 | 1687 bool retval = false; |
| 1688 | |
| 1689 octave_value val = symbol_table::find_function (nm); | |
| 1690 | |
| 1691 if (val.is_defined ()) | |
| 1692 { | |
| 1693 octave_function *fcn = val.function_value (); | |
| 1694 | |
| 1695 if (fcn) | |
| 1696 retval = fcn->islocked (); | |
| 1697 } | |
| 1698 | |
| 1699 return retval; | |
| 4319 | 1700 } |
| 1701 | |
|
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1702 DEFUN (mlock, args, , |
| 4319 | 1703 "-*- texinfo -*-\n\ |
| 7875 | 1704 @deftypefn {Built-in Function} {} mlock ()\n\ |
| 7336 | 1705 Lock the current function into memory so that it can't be cleared.\n\ |
| 5642 | 1706 @seealso{munlock, mislocked, persistent}\n\ |
| 1707 @end deftypefn") | |
| 4319 | 1708 { |
| 1709 octave_value_list retval; | |
| 1710 | |
| 7336 | 1711 if (args.length () == 0) |
|
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1712 { |
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1713 octave_function *fcn = octave_call_stack::caller (); |
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1714 |
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1715 if (fcn) |
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1716 fcn->lock (); |
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1717 else |
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1718 error ("mlock: invalid use outside a function"); |
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1719 } |
| 4319 | 1720 else |
| 5823 | 1721 print_usage (); |
| 4319 | 1722 |
| 1723 return retval; | |
| 1724 } | |
| 1725 | |
|
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1726 DEFUN (munlock, args, , |
| 4319 | 1727 "-*- texinfo -*-\n\ |
| 1728 @deftypefn {Built-in Function} {} munlock (@var{fcn})\n\ | |
| 1729 Unlock the named function. If no function is named\n\ | |
| 1730 then unlock the current function.\n\ | |
| 5642 | 1731 @seealso{mlock, mislocked, persistent}\n\ |
| 1732 @end deftypefn") | |
| 4319 | 1733 { |
| 1734 octave_value_list retval; | |
| 1735 | |
| 1736 if (args.length() == 1) | |
| 1737 { | |
| 1738 std::string name = args(0).string_value (); | |
| 1739 | |
| 1740 if (! error_state) | |
| 1741 munlock (name); | |
| 1742 else | |
| 1743 error ("munlock: expecting argument to be a function name"); | |
| 1744 } | |
| 1745 else if (args.length () == 0) | |
| 1746 { | |
| 7336 | 1747 octave_function *fcn = octave_call_stack::caller (); |
| 5743 | 1748 |
| 1749 if (fcn) | |
| 7336 | 1750 fcn->unlock (); |
| 4319 | 1751 else |
| 1752 error ("munlock: invalid use outside a function"); | |
| 1753 } | |
| 1754 else | |
| 5823 | 1755 print_usage (); |
| 4319 | 1756 |
| 1757 return retval; | |
| 1758 } | |
| 1759 | |
| 1760 | |
|
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1761 DEFUN (mislocked, args, , |
| 4319 | 1762 "-*- texinfo -*-\n\ |
| 1763 @deftypefn {Built-in Function} {} mislocked (@var{fcn})\n\ | |
| 1764 Return true if the named function is locked. If no function is named\n\ | |
| 1765 then return true if the current function is locked.\n\ | |
| 5642 | 1766 @seealso{mlock, munlock, persistent}\n\ |
| 1767 @end deftypefn") | |
| 4319 | 1768 { |
| 1769 octave_value retval; | |
| 1770 | |
| 1771 if (args.length() == 1) | |
| 1772 { | |
| 1773 std::string name = args(0).string_value (); | |
| 1774 | |
| 1775 if (! error_state) | |
| 1776 retval = mislocked (name); | |
| 1777 else | |
| 1778 error ("mislocked: expecting argument to be a function name"); | |
| 1779 } | |
| 1780 else if (args.length () == 0) | |
| 1781 { | |
| 7336 | 1782 octave_function *fcn = octave_call_stack::caller (); |
| 5743 | 1783 |
| 1784 if (fcn) | |
| 7336 | 1785 retval = fcn->islocked (); |
| 4319 | 1786 else |
| 1787 error ("mislocked: invalid use outside a function"); | |
| 1788 } | |
| 1789 else | |
| 5823 | 1790 print_usage (); |
| 4319 | 1791 |
| 1792 return retval; | |
| 1793 } | |
| 1794 | |
| 593 | 1795 // Deleting names from the symbol tables. |
| 1796 | |
| 3681 | 1797 static inline bool |
|
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1798 name_matches_any_pattern (const std::string& nm, const string_vector& argv, |
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1799 int argc, int idx, bool have_regexp = false) |
| 3681 | 1800 { |
| 1801 bool retval = false; | |
| 1802 | |
| 1803 for (int k = idx; k < argc; k++) | |
| 1804 { | |
| 1805 std::string patstr = argv[k]; | |
| 1806 if (! patstr.empty ()) | |
| 1807 { | |
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1808 if (have_regexp) |
| 3681 | 1809 { |
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1810 regex_match pattern (patstr); |
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1811 |
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1812 if (pattern.match (nm)) |
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1813 { |
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1814 retval = true; |
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1815 break; |
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1816 } |
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1817 } |
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1818 else |
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1819 { |
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1820 glob_match pattern (patstr); |
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1821 |
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1822 if (pattern.match (nm)) |
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1823 { |
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1824 retval = true; |
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1825 break; |
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1826 } |
| 3681 | 1827 } |
| 1828 } | |
| 1829 } | |
| 1830 | |
| 1831 return retval; | |
| 1832 } | |
| 1833 | |
| 4009 | 1834 static inline void |
| 1835 maybe_warn_exclusive (bool exclusive) | |
| 1836 { | |
| 1837 if (exclusive) | |
| 1838 warning ("clear: ignoring --exclusive option"); | |
| 1839 } | |
| 1840 | |
| 7336 | 1841 static void |
| 4009 | 1842 do_clear_functions (const string_vector& argv, int argc, int idx, |
| 1843 bool exclusive = false) | |
| 1844 { | |
| 1845 if (idx == argc) | |
| 7336 | 1846 symbol_table::clear_functions (); |
| 4009 | 1847 else |
| 1848 { | |
| 1849 if (exclusive) | |
| 1850 { | |
| 7336 | 1851 string_vector fcns = symbol_table::user_function_names (); |
| 4009 | 1852 |
| 1853 int fcount = fcns.length (); | |
| 1854 | |
| 1855 for (int i = 0; i < fcount; i++) | |
| 1856 { | |
| 1857 std::string nm = fcns[i]; | |
| 1858 | |
| 1859 if (! name_matches_any_pattern (nm, argv, argc, idx)) | |
| 7336 | 1860 symbol_table::clear_function (nm); |
| 4009 | 1861 } |
| 1862 } | |
| 1863 else | |
| 1864 { | |
| 1865 while (idx < argc) | |
| 7336 | 1866 symbol_table::clear_function_pattern (argv[idx++]); |
| 4009 | 1867 } |
| 1868 } | |
| 1869 } | |
| 1870 | |
| 7336 | 1871 static void |
| 4009 | 1872 do_clear_globals (const string_vector& argv, int argc, int idx, |
| 1873 bool exclusive = false) | |
| 1874 { | |
| 1875 if (idx == argc) | |
|
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1876 { |
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1877 string_vector gvars = symbol_table::global_variable_names (); |
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1878 |
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1879 int gcount = gvars.length (); |
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1880 |
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1881 for (int i = 0; i < gcount; i++) |
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1882 symbol_table::clear_global (gvars[i]); |
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1883 } |
| 4009 | 1884 else |
| 1885 { | |
| 1886 if (exclusive) | |
| 1887 { | |
|
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1888 string_vector gvars = symbol_table::global_variable_names (); |
| 4009 | 1889 |
| 1890 int gcount = gvars.length (); | |
| 1891 | |
| 1892 for (int i = 0; i < gcount; i++) | |
| 1893 { | |
| 1894 std::string nm = gvars[i]; | |
| 1895 | |
| 1896 if (! name_matches_any_pattern (nm, argv, argc, idx)) | |
| 7336 | 1897 symbol_table::clear_global (nm); |
| 4009 | 1898 } |
| 1899 } | |
| 1900 else | |
| 1901 { | |
| 1902 while (idx < argc) | |
| 7336 | 1903 symbol_table::clear_global_pattern (argv[idx++]); |
| 4009 | 1904 } |
| 1905 } | |
| 1906 } | |
| 1907 | |
| 7336 | 1908 static void |
| 4009 | 1909 do_clear_variables (const string_vector& argv, int argc, int idx, |
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1910 bool exclusive = false, bool have_regexp = false) |
| 4009 | 1911 { |
| 1912 if (idx == argc) | |
| 7336 | 1913 symbol_table::clear_variables (); |
| 4009 | 1914 else |
| 1915 { | |
| 1916 if (exclusive) | |
| 1917 { | |
| 7336 | 1918 string_vector lvars = symbol_table::variable_names (); |
| 4009 | 1919 |
| 1920 int lcount = lvars.length (); | |
| 1921 | |
| 1922 for (int i = 0; i < lcount; i++) | |
| 1923 { | |
| 1924 std::string nm = lvars[i]; | |
| 1925 | |
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1926 if (! name_matches_any_pattern (nm, argv, argc, idx, have_regexp)) |
| 7336 | 1927 symbol_table::clear_variable (nm); |
| 4009 | 1928 } |
| 1929 } | |
| 1930 else | |
| 1931 { | |
|
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1932 if (have_regexp) |
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1933 while (idx < argc) |
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1934 symbol_table::clear_variable_regexp (argv[idx++]); |
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1935 else |
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1936 while (idx < argc) |
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1937 symbol_table::clear_variable_pattern (argv[idx++]); |
| 4009 | 1938 } |
| 1939 } | |
| 1940 } | |
| 1941 | |
| 7336 | 1942 static void |
| 4009 | 1943 do_clear_symbols (const string_vector& argv, int argc, int idx, |
| 1944 bool exclusive = false) | |
| 1945 { | |
| 1946 if (idx == argc) | |
| 7336 | 1947 symbol_table::clear_variables (); |
| 4009 | 1948 else |
| 1949 { | |
| 1950 if (exclusive) | |
| 1951 { | |
| 5775 | 1952 // FIXME -- is this really what we want, or do we |
| 4009 | 1953 // somehow want to only clear the functions that are not |
| 1954 // shadowed by local variables? It seems that would be a | |
| 1955 // bit harder to do. | |
| 1956 | |
| 1957 do_clear_variables (argv, argc, idx, exclusive); | |
| 1958 do_clear_functions (argv, argc, idx, exclusive); | |
| 1959 } | |
| 1960 else | |
| 1961 { | |
| 1962 while (idx < argc) | |
| 7336 | 1963 symbol_table::clear_symbol_pattern (argv[idx++]); |
| 4009 | 1964 } |
| 1965 } | |
| 1966 } | |
| 1967 | |
| 1968 static void | |
| 1969 do_matlab_compatible_clear (const string_vector& argv, int argc, int idx) | |
| 1970 { | |
| 1971 // This is supposed to be mostly Matlab compatible. | |
| 1972 | |
| 1973 for (; idx < argc; idx++) | |
| 1974 { | |
| 7336 | 1975 if (argv[idx] == "all" |
| 1976 && ! symbol_table::is_local_variable ("all")) | |
| 4009 | 1977 { |
| 7336 | 1978 symbol_table::clear_all (); |
| 4009 | 1979 } |
| 7336 | 1980 else if (argv[idx] == "functions" |
| 1981 && ! symbol_table::is_local_variable ("functions")) | |
| 4009 | 1982 { |
| 1983 do_clear_functions (argv, argc, ++idx); | |
| 1984 } | |
| 7336 | 1985 else if (argv[idx] == "global" |
| 1986 && ! symbol_table::is_local_variable ("global")) | |
| 4009 | 1987 { |
| 1988 do_clear_globals (argv, argc, ++idx); | |
| 1989 } | |
| 7336 | 1990 else if (argv[idx] == "variables" |
| 1991 && ! symbol_table::is_local_variable ("variables")) | |
| 4009 | 1992 { |
| 7336 | 1993 symbol_table::clear_variables (); |
| 4009 | 1994 } |
| 1995 else | |
| 1996 { | |
| 7336 | 1997 symbol_table::clear_symbol_pattern (argv[idx]); |
| 4009 | 1998 } |
| 1999 } | |
| 2000 } | |
| 2001 | |
| 2002 #define CLEAR_OPTION_ERROR(cond) \ | |
| 2003 do \ | |
| 2004 { \ | |
| 2005 if (cond) \ | |
| 2006 { \ | |
| 5823 | 2007 print_usage (); \ |
| 4009 | 2008 return retval; \ |
| 2009 } \ | |
| 2010 } \ | |
| 2011 while (0) | |
| 2012 | |
|
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2013 DEFUN (clear, args, , |
| 3361 | 2014 "-*- texinfo -*-\n\ |
| 7347 | 2015 @deffn {Command} clear [options] pattern @dots{}\n\ |
| 3361 | 2016 Delete the names matching the given patterns from the symbol table. The\n\ |
| 2017 pattern may contain the following special characters:\n\ | |
| 4016 | 2018 \n\ |
| 3361 | 2019 @table @code\n\ |
| 2020 @item ?\n\ | |
| 2021 Match any single character.\n\ | |
| 668 | 2022 \n\ |
| 3361 | 2023 @item *\n\ |
| 2024 Match zero or more characters.\n\ | |
| 2025 \n\ | |
| 2026 @item [ @var{list} ]\n\ | |
| 2027 Match the list of characters specified by @var{list}. If the first\n\ | |
| 2028 character is @code{!} or @code{^}, match all characters except those\n\ | |
| 2029 specified by @var{list}. For example, the pattern @samp{[a-zA-Z]} will\n\ | |
| 2030 match all lower and upper case alphabetic characters.\n\ | |
| 2031 @end table\n\ | |
| 2032 \n\ | |
| 2033 For example, the command\n\ | |
| 593 | 2034 \n\ |
| 3361 | 2035 @example\n\ |
| 2036 clear foo b*r\n\ | |
| 2037 @end example\n\ | |
| 2038 \n\ | |
| 2039 @noindent\n\ | |
| 2040 clears the name @code{foo} and all names that begin with the letter\n\ | |
| 2041 @code{b} and end with the letter @code{r}.\n\ | |
| 668 | 2042 \n\ |
| 3361 | 2043 If @code{clear} is called without any arguments, all user-defined\n\ |
| 2044 variables (local and global) are cleared from the symbol table. If\n\ | |
| 2045 @code{clear} is called with at least one argument, only the visible\n\ | |
| 2046 names matching the arguments are cleared. For example, suppose you have\n\ | |
| 2047 defined a function @code{foo}, and then hidden it by performing the\n\ | |
| 2048 assignment @code{foo = 2}. Executing the command @kbd{clear foo} once\n\ | |
| 2049 will clear the variable definition and restore the definition of\n\ | |
| 2050 @code{foo} as a function. Executing @kbd{clear foo} a second time will\n\ | |
| 2051 clear the function definition.\n\ | |
| 2052 \n\ | |
| 7347 | 2053 The following options are available in both long and short form\n\ |
| 2054 @table @code\n\ | |
| 2055 @item -all, -a\n\ | |
| 2056 Clears all local and global user-defined variables and all functions\n\ | |
| 2057 from the symbol table.\n\ | |
| 2058 \n\ | |
| 2059 @item -exclusive, -x\n\ | |
| 2060 Clears the variables that don't match the following pattern.\n\ | |
| 2061 \n\ | |
| 2062 @item -functions, -f\n\ | |
| 2063 Clears the function names and the built-in symbols names.\n\ | |
| 2064 @item -global, -g\n\ | |
| 2065 Clears the global symbol names.\n\ | |
| 2066 @item -variables, -v\n\ | |
| 2067 Clears the local variable names.\n\ | |
|
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2068 @item -regexp, -r\n\ |
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2069 The arguments are treated as regular expressions as any variables that\n\ |
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2070 match will be cleared.\n\ |
| 7347 | 2071 @end table\n\ |
|
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2072 With the exception of @code{exclusive}, all long options can be used \n\ |
| 7347 | 2073 without the dash as well.\n\ |
| 3361 | 2074 @end deffn") |
| 529 | 2075 { |
| 2086 | 2076 octave_value_list retval; |
| 593 | 2077 |
| 1755 | 2078 int argc = args.length () + 1; |
| 593 | 2079 |
| 1968 | 2080 string_vector argv = args.make_argv ("clear"); |
| 1755 | 2081 |
| 4009 | 2082 if (! error_state) |
| 529 | 2083 { |
| 4009 | 2084 if (argc == 1) |
| 593 | 2085 { |
| 7336 | 2086 symbol_table::clear_variables (); |
| 3681 | 2087 } |
| 2088 else | |
| 2089 { | |
| 4009 | 2090 int idx = 0; |
| 2091 | |
| 2092 bool clear_all = false; | |
| 2093 bool clear_functions = false; | |
| 2094 bool clear_globals = false; | |
| 2095 bool clear_variables = false; | |
| 2096 bool exclusive = false; | |
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2097 bool have_regexp = false; |
| 4009 | 2098 bool have_dash_option = false; |
| 3681 | 2099 |
| 4009 | 2100 while (++idx < argc) |
| 2101 { | |
| 4010 | 2102 if (argv[idx] == "-all" || argv[idx] == "-a") |
| 593 | 2103 { |
| 4009 | 2104 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
| 3681 | 2105 |
| 4009 | 2106 have_dash_option = true; |
| 2107 clear_all = true; | |
| 2108 } | |
| 4010 | 2109 else if (argv[idx] == "-exclusive" || argv[idx] == "-x") |
| 4009 | 2110 { |
| 2111 have_dash_option = true; | |
| 2112 exclusive = true; | |
| 2113 } | |
| 4010 | 2114 else if (argv[idx] == "-functions" || argv[idx] == "-f") |
| 4009 | 2115 { |
| 2116 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); | |
| 3681 | 2117 |
| 4009 | 2118 have_dash_option = true; |
| 2119 clear_functions = true; | |
| 2120 } | |
| 4010 | 2121 else if (argv[idx] == "-global" || argv[idx] == "-g") |
| 4009 | 2122 { |
| 2123 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); | |
| 2124 | |
| 2125 have_dash_option = true; | |
| 2126 clear_globals = true; | |
| 2127 } | |
| 4010 | 2128 else if (argv[idx] == "-variables" || argv[idx] == "-v") |
| 4009 | 2129 { |
| 2130 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); | |
| 3681 | 2131 |
| 4009 | 2132 have_dash_option = true; |
| 2133 clear_variables = true; | |
| 2134 } | |
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2135 else if (argv[idx] == "-regexp" || argv[idx] == "-r") |
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2136 { |
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2137 CLEAR_OPTION_ERROR (have_dash_option && ! exclusive); |
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2138 |
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2139 have_dash_option = true; |
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2140 have_regexp = true; |
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2141 } |
| 4009 | 2142 else |
| 2143 break; | |
| 2144 } | |
| 3681 | 2145 |
| 4224 | 2146 if (idx <= argc) |
| 4009 | 2147 { |
| 2148 if (! have_dash_option) | |
| 2149 { | |
| 2150 do_matlab_compatible_clear (argv, argc, idx); | |
| 2151 } | |
| 2152 else | |
| 2153 { | |
| 2154 if (clear_all) | |
| 3681 | 2155 { |
| 4009 | 2156 maybe_warn_exclusive (exclusive); |
| 3681 | 2157 |
| 4009 | 2158 if (++idx < argc) |
| 2159 warning | |
| 4010 | 2160 ("clear: ignoring extra arguments after -all"); |
| 3681 | 2161 |
| 7336 | 2162 symbol_table::clear_all (); |
| 4009 | 2163 } |
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2164 else if (have_regexp) |
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2165 { |
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2166 do_clear_variables (argv, argc, idx, exclusive, true); |
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2167 } |
| 4009 | 2168 else if (clear_functions) |
| 2169 { | |
| 2170 do_clear_functions (argv, argc, idx, exclusive); | |
| 2171 } | |
| 2172 else if (clear_globals) | |
| 593 | 2173 { |
| 4009 | 2174 do_clear_globals (argv, argc, idx, exclusive); |
| 2175 } | |
| 2176 else if (clear_variables) | |
| 2177 { | |
| 2178 do_clear_variables (argv, argc, idx, exclusive); | |
| 2179 } | |
| 2180 else | |
| 2181 { | |
| 2182 do_clear_symbols (argv, argc, idx, exclusive); | |
| 593 | 2183 } |
| 2184 } | |
| 2185 } | |
| 2186 } | |
| 2187 } | |
| 2188 | |
| 2189 return retval; | |
| 529 | 2190 } |
| 2191 | |
| 7336 | 2192 DEFUN (whos_line_format, args, nargout, |
| 2193 "-*- texinfo -*-\n\ | |
| 2194 @deftypefn {Built-in Function} {@var{val} =} whos_line_format ()\n\ | |
| 2195 @deftypefnx {Built-in Function} {@var{old_val} =} whos_line_format (@var{new_val})\n\ | |
| 2196 Query or set the format string used by the @code{whos}.\n\ | |
| 2197 \n\ | |
| 2198 The following escape sequences may be used in the format:\n\ | |
| 2199 @table @code\n\ | |
| 2200 @item %a\n\ | |
| 2201 Prints attributes of variables (g=global, p=persistent,\n\ | |
| 2202 f=formal parameter, a=automatic variable).\n\ | |
| 2203 @item %b\n\ | |
| 2204 Prints number of bytes occupied by variables.\n\ | |
| 2205 @item %c\n\ | |
| 2206 Prints class names of variables.\n\ | |
| 2207 @item %e\n\ | |
| 2208 Prints elements held by variables.\n\ | |
| 2209 @item %n\n\ | |
| 2210 Prints variable names.\n\ | |
| 2211 @item %s\n\ | |
| 2212 Prints dimensions of variables.\n\ | |
| 2213 @item %t\n\ | |
| 2214 Prints type names of variables.\n\ | |
| 2215 @end table\n\ | |
| 2216 \n\ | |
| 2217 Every command may also have a modifier:\n\ | |
| 2218 @table @code\n\ | |
| 2219 @item l\n\ | |
| 2220 Left alignment.\n\ | |
| 2221 @item r\n\ | |
| 2222 Right alignment (this is the default).\n\ | |
| 2223 @item c\n\ | |
| 2224 Centered (may only be applied to command %s).\n\ | |
| 2225 @end table\n\ | |
| 2226 \n\ | |
| 2227 A command is composed like this:\n\ | |
| 2228 \n\ | |
| 8516 | 2229 @smallexample\n\ |
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2230 %[modifier]<command>[:size_of_parameter[:center-specific[:balance]]];\n\ |
| 8516 | 2231 @end smallexample\n\ |
| 7336 | 2232 \n\ |
| 8516 | 2233 Command and modifier is already explained. The @code{size_of_parameter}\n\ |
| 2234 parameter tells how many columns the parameter will need for printing.\n\ | |
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2235 The @code{center-specific} parameter may only be applied to command\n\ |
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2236 @samp{%s}.\n\ |
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2237 The @code{balance} parameter specifies the offset for printing\n\ |
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2238 the dimensions string.\n\ |
| 7336 | 2239 \n\ |
| 8516 | 2240 The default format is\n\ |
| 2241 @code{\" %a:4; %ln:6; %cs:16:6:1; %rb:12; %lc:-1;\\n\"}.\n\ | |
| 5794 | 2242 @end deftypefn") |
| 2243 { | |
| 7336 | 2244 return SET_INTERNAL_VARIABLE (whos_line_format); |
| 3016 | 2245 } |
| 2246 | |
| 1 | 2247 /* |
| 2248 ;;; Local Variables: *** | |
| 2249 ;;; mode: C++ *** | |
| 2250 ;;; End: *** | |
| 2251 */ |