| 1 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 2 | % |
|---|
| 3 | % Logtalk - Object oriented extension to Prolog |
|---|
| 4 | % Release 2.20.2 |
|---|
| 5 | % |
|---|
| 6 | % configuration file for LPA WinProlog 4.00 |
|---|
| 7 | % |
|---|
| 8 | % last updated: July 17, 2004 |
|---|
| 9 | % |
|---|
| 10 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 11 | |
|---|
| 12 | |
|---|
| 13 | :- prolog_flag(syntax_errors, _, error). |
|---|
| 14 | |
|---|
| 15 | |
|---|
| 16 | |
|---|
| 17 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 18 | % |
|---|
| 19 | % ISO Prolog Standard predicates that we must define because they are |
|---|
| 20 | % not built-in |
|---|
| 21 | % |
|---|
| 22 | % add a clause for lgt_iso_predicate/1 declaring each ISO predicate that |
|---|
| 23 | % we must define; there must be at least one clause for this predicate |
|---|
| 24 | % whose call should fail if we don't define any ISO predicates |
|---|
| 25 | % |
|---|
| 26 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 27 | |
|---|
| 28 | |
|---|
| 29 | :- dynamic(lgt_exception_/1). |
|---|
| 30 | |
|---|
| 31 | |
|---|
| 32 | % '$lgt_iso_predicate'(?callable). |
|---|
| 33 | |
|---|
| 34 | '$lgt_iso_predicate'(atom_codes(_, _)). |
|---|
| 35 | '$lgt_iso_predicate'(atom_concat(_, _, _)). |
|---|
| 36 | '$lgt_iso_predicate'(catch(_, _, _)). |
|---|
| 37 | '$lgt_iso_predicate'(close(_)). |
|---|
| 38 | '$lgt_iso_predicate'(nl(_)). |
|---|
| 39 | '$lgt_iso_predicate'(number_codes(_, _)). |
|---|
| 40 | '$lgt_iso_predicate'(once(_)). |
|---|
| 41 | '$lgt_iso_predicate'(open(_, _, _)). |
|---|
| 42 | '$lgt_iso_predicate'(read_term(_, _, _)). |
|---|
| 43 | '$lgt_iso_predicate'(throw(_)). |
|---|
| 44 | '$lgt_iso_predicate'(write_canonical(_, _)). |
|---|
| 45 | '$lgt_iso_predicate'(write_term(_, _, _)). |
|---|
| 46 | |
|---|
| 47 | |
|---|
| 48 | atom_codes(Atom, Codes) :- |
|---|
| 49 | atom_chars(Atom, Codes). |
|---|
| 50 | |
|---|
| 51 | |
|---|
| 52 | atom_concat(Atom1, Atom2, Atom3) :- |
|---|
| 53 | nonvar(Atom1), nonvar(Atom2), |
|---|
| 54 | !, |
|---|
| 55 | name(Atom1, Codes1), |
|---|
| 56 | name(Atom2, Codes2), |
|---|
| 57 | '$lgt_append'(Codes1, Codes2, Codes3), |
|---|
| 58 | name(Atom3, Codes3). |
|---|
| 59 | |
|---|
| 60 | atom_concat(Atom1, Atom2, Atom3) :- |
|---|
| 61 | nonvar(Atom3), |
|---|
| 62 | !, |
|---|
| 63 | name(Atom3, Codes3), |
|---|
| 64 | '$lgt_append'(Codes1, Codes2, Codes3), |
|---|
| 65 | name(Atom1, Codes1), |
|---|
| 66 | name(Atom2, Codes2). |
|---|
| 67 | |
|---|
| 68 | |
|---|
| 69 | lpa_catch(Error, Goal) :- |
|---|
| 70 | catch(Error, Goal). |
|---|
| 71 | |
|---|
| 72 | |
|---|
| 73 | :- hide(catch). |
|---|
| 74 | |
|---|
| 75 | |
|---|
| 76 | catch(Error, Goal) :- |
|---|
| 77 | lpa_catch(Error, Goal). |
|---|
| 78 | |
|---|
| 79 | |
|---|
| 80 | catch(Goal, Catcher, Recovery) :- |
|---|
| 81 | lpa_catch(Error, Goal), |
|---|
| 82 | (Error = 0 -> |
|---|
| 83 | true |
|---|
| 84 | ; |
|---|
| 85 | (Error = -1 -> |
|---|
| 86 | !, fail |
|---|
| 87 | ; |
|---|
| 88 | (Error = 999 -> |
|---|
| 89 | retract(lgt_exception_(Ball)), |
|---|
| 90 | !, |
|---|
| 91 | (Catcher = Ball -> |
|---|
| 92 | call(Recovery) |
|---|
| 93 | ; |
|---|
| 94 | throw(Ball)) |
|---|
| 95 | ; |
|---|
| 96 | error_message(Error, Message), |
|---|
| 97 | (Catcher = Message -> |
|---|
| 98 | call(Recovery) |
|---|
| 99 | ; |
|---|
| 100 | write(Message), nl, abort)))). |
|---|
| 101 | |
|---|
| 102 | |
|---|
| 103 | :- hide(close). |
|---|
| 104 | |
|---|
| 105 | |
|---|
| 106 | close(Stream) :- |
|---|
| 107 | fclose(Stream). |
|---|
| 108 | |
|---|
| 109 | |
|---|
| 110 | nl(Stream) :- |
|---|
| 111 | output(Current), |
|---|
| 112 | output(Stream), |
|---|
| 113 | nl, |
|---|
| 114 | output(Current). |
|---|
| 115 | |
|---|
| 116 | |
|---|
| 117 | number_codes(Number, Codes) :- |
|---|
| 118 | number_chars(Number, Codes). |
|---|
| 119 | |
|---|
| 120 | |
|---|
| 121 | once(Goal) :- |
|---|
| 122 | one(Goal). |
|---|
| 123 | |
|---|
| 124 | |
|---|
| 125 | open(File, read, File) :- |
|---|
| 126 | fcreate(File, File, 0, 0). |
|---|
| 127 | |
|---|
| 128 | open(File, write, File) :- |
|---|
| 129 | fcreate(File, File, -1, 0). |
|---|
| 130 | |
|---|
| 131 | |
|---|
| 132 | read_term(Stream, Term, [singletons([])]) :- |
|---|
| 133 | !, |
|---|
| 134 | input(Current), |
|---|
| 135 | input(Stream), |
|---|
| 136 | read(Term), |
|---|
| 137 | input(Current). |
|---|
| 138 | |
|---|
| 139 | read_term(Stream, Term, _) :- |
|---|
| 140 | input(Current), |
|---|
| 141 | input(Stream), |
|---|
| 142 | read(Term), |
|---|
| 143 | input(Current). |
|---|
| 144 | |
|---|
| 145 | |
|---|
| 146 | throw(Error) :- |
|---|
| 147 | asserta(lgt_exception_(Error)), |
|---|
| 148 | throw(999, Error). |
|---|
| 149 | |
|---|
| 150 | |
|---|
| 151 | write_canonical(Stream, Term) :- |
|---|
| 152 | output(Current), |
|---|
| 153 | output(Stream), |
|---|
| 154 | writeq(Term), |
|---|
| 155 | output(Current). |
|---|
| 156 | |
|---|
| 157 | |
|---|
| 158 | write_term(Stream, Term, [quoted(true)]) :- |
|---|
| 159 | !, |
|---|
| 160 | output(Current), |
|---|
| 161 | output(Stream), |
|---|
| 162 | writeq(Term), |
|---|
| 163 | output(Current). |
|---|
| 164 | |
|---|
| 165 | write_term(Stream, Term, _) :- |
|---|
| 166 | output(Current), |
|---|
| 167 | output(Stream), |
|---|
| 168 | write(Term), |
|---|
| 169 | output(Current). |
|---|
| 170 | |
|---|
| 171 | |
|---|
| 172 | |
|---|
| 173 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 174 | % |
|---|
| 175 | % predicate properties |
|---|
| 176 | % |
|---|
| 177 | % this predicate must return at least static, dynamic, and built_in |
|---|
| 178 | % properties for an existing predicate |
|---|
| 179 | % |
|---|
| 180 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 181 | |
|---|
| 182 | |
|---|
| 183 | % '$lgt_predicate_property'(+callable, ?predicate_property) |
|---|
| 184 | |
|---|
| 185 | '$lgt_predicate_property'(Pred, Prop) :- |
|---|
| 186 | predicate_property(Pred, Prop). |
|---|
| 187 | |
|---|
| 188 | |
|---|
| 189 | |
|---|
| 190 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 191 | % |
|---|
| 192 | % metapredicates |
|---|
| 193 | % |
|---|
| 194 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 195 | |
|---|
| 196 | |
|---|
| 197 | % lgt_call/2-8 |
|---|
| 198 | % |
|---|
| 199 | % use these definitions only if your compiler does |
|---|
| 200 | % not provide call/1-8 as built-in predicates |
|---|
| 201 | |
|---|
| 202 | '$lgt_call'(F, A) :- |
|---|
| 203 | F(A). |
|---|
| 204 | |
|---|
| 205 | |
|---|
| 206 | '$lgt_call'(F, A1, A2) :- |
|---|
| 207 | F(A1, A2). |
|---|
| 208 | |
|---|
| 209 | |
|---|
| 210 | '$lgt_call'(F, A1, A2, A3) :- |
|---|
| 211 | F(A1, A2, A3). |
|---|
| 212 | |
|---|
| 213 | |
|---|
| 214 | '$lgt_call'(F, A1, A2, A3, A4) :- |
|---|
| 215 | F(A1, A2, A3, A4). |
|---|
| 216 | |
|---|
| 217 | |
|---|
| 218 | '$lgt_call'(F, A1, A2, A3, A4, A5) :- |
|---|
| 219 | F(A1, A2, A3, A4, A5). |
|---|
| 220 | |
|---|
| 221 | |
|---|
| 222 | '$lgt_call'(F, A1, A2, A3, A4, A5, A6) :- |
|---|
| 223 | F(A1, A2, A3, A4, A5, A6). |
|---|
| 224 | |
|---|
| 225 | |
|---|
| 226 | '$lgt_call'(F, A1, A2, A3, A4, A5, A6, A7) :- |
|---|
| 227 | F(A1, A2, A3, A4, A5, A6, A7). |
|---|
| 228 | |
|---|
| 229 | |
|---|
| 230 | % lgt_once/2-8 |
|---|
| 231 | % |
|---|
| 232 | % if your compiler provides call/1-8 as built-in |
|---|
| 233 | % predicates rewrite these definitions using call(...), !. |
|---|
| 234 | |
|---|
| 235 | '$lgt_once'(F, A) :- |
|---|
| 236 | one(F(A)). |
|---|
| 237 | |
|---|
| 238 | |
|---|
| 239 | '$lgt_once'(F, A1, A2) :- |
|---|
| 240 | one(F(A1, A2)). |
|---|
| 241 | |
|---|
| 242 | |
|---|
| 243 | '$lgt_once'(F, A1, A2, A3) :- |
|---|
| 244 | one(F(A1, A2, A3)). |
|---|
| 245 | |
|---|
| 246 | |
|---|
| 247 | '$lgt_once'(F, A1, A2, A3, A4) :- |
|---|
| 248 | one(F(A1, A2, A3, A4)). |
|---|
| 249 | |
|---|
| 250 | |
|---|
| 251 | '$lgt_once'(F, A1, A2, A3, A4, A5) :- |
|---|
| 252 | one(F(A1, A2, A3, A4, A5)). |
|---|
| 253 | |
|---|
| 254 | |
|---|
| 255 | '$lgt_once'(F, A1, A2, A3, A4, A5, A6) :- |
|---|
| 256 | one(F(A1, A2, A3, A4, A5, A6)). |
|---|
| 257 | |
|---|
| 258 | |
|---|
| 259 | '$lgt_once'(F, A1, A2, A3, A4, A5, A6, A7) :- |
|---|
| 260 | one(F(A1, A2, A3, A4, A5, A6, A7)). |
|---|
| 261 | |
|---|
| 262 | |
|---|
| 263 | |
|---|
| 264 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 265 | % |
|---|
| 266 | % Prolog built-in metapredicates |
|---|
| 267 | % |
|---|
| 268 | % (excluding ISO Prolog Standard metapredicates) |
|---|
| 269 | % |
|---|
| 270 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 271 | |
|---|
| 272 | |
|---|
| 273 | % '$lgt_pl_metapredicate'(?callable). |
|---|
| 274 | |
|---|
| 275 | '$lgt_pl_metapredicate'(_) :- |
|---|
| 276 | fail. |
|---|
| 277 | |
|---|
| 278 | |
|---|
| 279 | |
|---|
| 280 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 281 | % |
|---|
| 282 | % file extension predicates |
|---|
| 283 | % |
|---|
| 284 | % these extensions are used by Logtalk load/compile predicates |
|---|
| 285 | % |
|---|
| 286 | % you may want to change the extension for Prolog files to match |
|---|
| 287 | % the one expected by your Prolog compiler |
|---|
| 288 | % |
|---|
| 289 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 290 | |
|---|
| 291 | |
|---|
| 292 | % '$lgt_file_extension'(?atom, ?atom) |
|---|
| 293 | |
|---|
| 294 | '$lgt_file_extension'(metafile, '.mlgt'). |
|---|
| 295 | '$lgt_file_extension'(logtalk, '.lgt'). |
|---|
| 296 | '$lgt_file_extension'(prolog, '.pl'). |
|---|
| 297 | '$lgt_file_extension'(xml, '.xml'). |
|---|
| 298 | |
|---|
| 299 | |
|---|
| 300 | |
|---|
| 301 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 302 | % |
|---|
| 303 | % default flag values |
|---|
| 304 | % |
|---|
| 305 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 306 | |
|---|
| 307 | |
|---|
| 308 | % '$lgt_default_flag'(?atom, ?atom) |
|---|
| 309 | % |
|---|
| 310 | % default values for all flags |
|---|
| 311 | |
|---|
| 312 | '$lgt_default_flag'(iso_initialization_dir, true). |
|---|
| 313 | |
|---|
| 314 | '$lgt_default_flag'(xml, on). |
|---|
| 315 | '$lgt_default_flag'(xsl, 'lgtxml.xsl'). |
|---|
| 316 | '$lgt_default_flag'(xmlspec, dtd). |
|---|
| 317 | '$lgt_default_flag'(doctype, local). |
|---|
| 318 | |
|---|
| 319 | '$lgt_default_flag'(unknown, warning). |
|---|
| 320 | '$lgt_default_flag'(misspelt, warning). |
|---|
| 321 | '$lgt_default_flag'(singletons, warning). |
|---|
| 322 | '$lgt_default_flag'(lgtredef, warning). |
|---|
| 323 | '$lgt_default_flag'(plredef, silent). |
|---|
| 324 | '$lgt_default_flag'(portability, silent). |
|---|
| 325 | |
|---|
| 326 | '$lgt_default_flag'(report, on). |
|---|
| 327 | |
|---|
| 328 | '$lgt_default_flag'(smart_compilation, off). |
|---|
| 329 | |
|---|
| 330 | '$lgt_default_flag'(startup_message, flags). |
|---|
| 331 | |
|---|
| 332 | '$lgt_default_flag'(underscore_vars, singletons). |
|---|
| 333 | |
|---|
| 334 | '$lgt_default_flag'(code_prefix, ''). |
|---|
| 335 | |
|---|
| 336 | '$lgt_default_flag'(debug, off). |
|---|
| 337 | '$lgt_default_flag'(supports_break_predicate, false). |
|---|
| 338 | |
|---|
| 339 | |
|---|
| 340 | |
|---|
| 341 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 342 | % |
|---|
| 343 | % list predicates |
|---|
| 344 | % |
|---|
| 345 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 346 | |
|---|
| 347 | |
|---|
| 348 | '$lgt_append'([], List, List). |
|---|
| 349 | '$lgt_append'([Head| Tail], List, [Head| Tail2]) :- |
|---|
| 350 | '$lgt_append'(Tail, List, Tail2). |
|---|
| 351 | |
|---|
| 352 | |
|---|
| 353 | '$lgt_member'(Head, [Head| _]). |
|---|
| 354 | '$lgt_member'(Head, [_| Tail]) :- |
|---|
| 355 | '$lgt_member'(Head, Tail). |
|---|
| 356 | |
|---|
| 357 | |
|---|
| 358 | '$lgt_member_var'(V, [H| _]) :- |
|---|
| 359 | V == H. |
|---|
| 360 | '$lgt_member_var'(V, [_| T]) :- |
|---|
| 361 | '$lgt_member_var'(V, T). |
|---|
| 362 | |
|---|
| 363 | |
|---|
| 364 | '$lgt_proper_list'([]). |
|---|
| 365 | '$lgt_proper_list'([_| List]) :- |
|---|
| 366 | '$lgt_proper_list'(List). |
|---|
| 367 | |
|---|
| 368 | |
|---|
| 369 | '$lgt_reverse'(List, Reversed) :- |
|---|
| 370 | '$lgt_reverse'(List, [], Reversed, Reversed). |
|---|
| 371 | |
|---|
| 372 | '$lgt_reverse'([], Reversed, Reversed, []). |
|---|
| 373 | '$lgt_reverse'([Head| Tail], List, Reversed, [_| Bound]) :- |
|---|
| 374 | '$lgt_reverse'(Tail, [Head| List], Reversed, Bound). |
|---|
| 375 | |
|---|
| 376 | |
|---|
| 377 | |
|---|
| 378 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 379 | % |
|---|
| 380 | % file predicates |
|---|
| 381 | % |
|---|
| 382 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 383 | |
|---|
| 384 | |
|---|
| 385 | % '$lgt_file_exists'(+atom) |
|---|
| 386 | % |
|---|
| 387 | % see if a file exist in the current directory |
|---|
| 388 | |
|---|
| 389 | '$lgt_file_exists'(File) :- |
|---|
| 390 | file(File, -1, Result), |
|---|
| 391 | Result = 1. |
|---|
| 392 | |
|---|
| 393 | |
|---|
| 394 | % '$lgt_load_prolog_code'(+atom) |
|---|
| 395 | % |
|---|
| 396 | % compile and load a Prolog file |
|---|
| 397 | |
|---|
| 398 | '$lgt_load_prolog_code'(File) :- |
|---|
| 399 | reconsult(File). |
|---|
| 400 | |
|---|
| 401 | |
|---|
| 402 | % '$lgt_compare_file_mtimes'(?atom, +atom, +atom) |
|---|
| 403 | % |
|---|
| 404 | % compare file modification times |
|---|
| 405 | |
|---|
| 406 | '$lgt_compare_file_mtimes'(Result, File1, File2) :- |
|---|
| 407 | file(File1, 3, Time1), |
|---|
| 408 | file(File2, 3, Time2), |
|---|
| 409 | compare(Result, Time1, Time2). |
|---|
| 410 | |
|---|
| 411 | |
|---|
| 412 | |
|---|
| 413 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 414 | % |
|---|
| 415 | % sorting predicates |
|---|
| 416 | % |
|---|
| 417 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 418 | |
|---|
| 419 | |
|---|
| 420 | % '$lgt_keysort'(+list, -list) |
|---|
| 421 | |
|---|
| 422 | '$lgt_keysort'(List, Sorted) :- |
|---|
| 423 | keysort(List, Sorted). |
|---|
| 424 | |
|---|
| 425 | |
|---|
| 426 | % '$lgt_sort'(+list, -list) |
|---|
| 427 | |
|---|
| 428 | '$lgt_sort'(List, Sorted) :- |
|---|
| 429 | sort(List, Sorted). |
|---|
| 430 | |
|---|
| 431 | |
|---|
| 432 | |
|---|
| 433 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 434 | % |
|---|
| 435 | % time and date predicates |
|---|
| 436 | % |
|---|
| 437 | % if your Prolog compiler does not provide access to the operating system |
|---|
| 438 | % time and date just write dummy definitions |
|---|
| 439 | % |
|---|
| 440 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 441 | |
|---|
| 442 | |
|---|
| 443 | % '$lgt_current_date'(?Year, ?Month, ?Day) |
|---|
| 444 | |
|---|
| 445 | '$lgt_current_date'(Year, Month, Day) :- |
|---|
| 446 | time(Year, Month, Day, _, _, _, _). |
|---|
| 447 | |
|---|
| 448 | |
|---|
| 449 | % '$lgt_current_time'(?Hours, ?Mins, ?Secs) |
|---|
| 450 | |
|---|
| 451 | '$lgt_current_time'(Hours, Mins, Secs) :- |
|---|
| 452 | time(_, _, _, Hours, Mins, Secs, _). |
|---|
| 453 | |
|---|
| 454 | |
|---|
| 455 | |
|---|
| 456 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 457 | % |
|---|
| 458 | % timing predicate |
|---|
| 459 | % |
|---|
| 460 | % if your Prolog compiler does not provide access to a timing predicate |
|---|
| 461 | % just write dummy definition |
|---|
| 462 | % |
|---|
| 463 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 464 | |
|---|
| 465 | |
|---|
| 466 | % '$lgt_cpu_time'(-Seconds) |
|---|
| 467 | |
|---|
| 468 | '$lgt_cpu_time'(Seconds) :- |
|---|
| 469 | ticks(Ticks), |
|---|
| 470 | AbsTicks is Ticks mod 2^32, |
|---|
| 471 | Seconds is AbsTicks / 4660. |
|---|
| 472 | |
|---|
| 473 | |
|---|
| 474 | |
|---|
| 475 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 476 | % |
|---|
| 477 | % comparison predicate |
|---|
| 478 | % |
|---|
| 479 | % the usual compare/3 definition |
|---|
| 480 | % |
|---|
| 481 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 482 | |
|---|
| 483 | |
|---|
| 484 | % compare(?atom, @term, @term) -- built-in |
|---|
| 485 | |
|---|
| 486 | |
|---|
| 487 | |
|---|
| 488 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 489 | % |
|---|
| 490 | % callable predicate |
|---|
| 491 | % |
|---|
| 492 | % the usual callable/1 definition |
|---|
| 493 | % |
|---|
| 494 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 495 | |
|---|
| 496 | |
|---|
| 497 | % callable(@term) -- built-in |
|---|
| 498 | |
|---|
| 499 | |
|---|
| 500 | |
|---|
| 501 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 502 | % |
|---|
| 503 | % read character predicate |
|---|
| 504 | % |
|---|
| 505 | % read a single character echoing it and writing a newline after |
|---|
| 506 | % |
|---|
| 507 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 508 | |
|---|
| 509 | |
|---|
| 510 | '$lgt_read_single_char'(Char) :- |
|---|
| 511 | get(Code), name(Char, [Code]). |
|---|
| 512 | |
|---|
| 513 | |
|---|
| 514 | |
|---|
| 515 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 516 | % |
|---|
| 517 | % pretty print a term by naming its free variables |
|---|
| 518 | % (avoid instantiating variables in term by using double negation if necessary) |
|---|
| 519 | % |
|---|
| 520 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 521 | |
|---|
| 522 | |
|---|
| 523 | '$lgt_pretty_print_vars'(Stream, Term) :- |
|---|
| 524 | write(Stream, Term). |
|---|
| 525 | |
|---|
| 526 | |
|---|
| 527 | '$lgt_pretty_print_vars_quoted'(Stream, Term) :- |
|---|
| 528 | writeq(Stream, Term). |
|---|
| 529 | |
|---|
| 530 | |
|---|
| 531 | |
|---|
| 532 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|
| 533 | % |
|---|
| 534 | % end! |
|---|
| 535 | % |
|---|
| 536 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
|---|