| 1 | package Bit::Vector::Overload; |
| 2 | |
| 3 | use strict; |
| 4 | use vars qw(@ISA @EXPORT @EXPORT_OK $VERSION); |
| 5 | |
| 6 | use Bit::Vector; |
| 7 | |
| 8 | require Exporter; |
| 9 | |
| 10 | @ISA = qw(Exporter Bit::Vector); |
| 11 | |
| 12 | @EXPORT = qw(); |
| 13 | |
| 14 | @EXPORT_OK = qw(); |
| 15 | |
| 16 | $VERSION = '6.4'; |
| 17 | |
| 18 | package Bit::Vector; |
| 19 | |
| 20 | use Carp::Clan '^Bit::Vector\b'; |
| 21 | |
| 22 | use overload |
| 23 | '""' => '_stringify', |
| 24 | 'bool' => '_boolean', |
| 25 | '!' => '_not_boolean', |
| 26 | '~' => '_complement', |
| 27 | 'neg' => '_negate', |
| 28 | 'abs' => '_absolute', |
| 29 | '.' => '_concat', |
| 30 | 'x' => '_xerox', |
| 31 | '<<' => '_shift_left', |
| 32 | '>>' => '_shift_right', |
| 33 | '|' => '_union', |
| 34 | '&' => '_intersection', |
| 35 | '^' => '_exclusive_or', |
| 36 | '+' => '_add', |
| 37 | '-' => '_sub', |
| 38 | '*' => '_mul', |
| 39 | '/' => '_div', |
| 40 | '%' => '_mod', |
| 41 | '**' => '_pow', |
| 42 | '.=' => '_assign_concat', |
| 43 | 'x=' => '_assign_xerox', |
| 44 | '<<=' => '_assign_shift_left', |
| 45 | '>>=' => '_assign_shift_right', |
| 46 | '|=' => '_assign_union', |
| 47 | '&=' => '_assign_intersection', |
| 48 | '^=' => '_assign_exclusive_or', |
| 49 | '+=' => '_assign_add', |
| 50 | '-=' => '_assign_sub', |
| 51 | '*=' => '_assign_mul', |
| 52 | '/=' => '_assign_div', |
| 53 | '%=' => '_assign_mod', |
| 54 | '**=' => '_assign_pow', |
| 55 | '++' => '_increment', |
| 56 | '--' => '_decrement', |
| 57 | 'cmp' => '_lexicompare', # also enables lt, le, gt, ge, eq, ne |
| 58 | '<=>' => '_compare', |
| 59 | '==' => '_equal', |
| 60 | '!=' => '_not_equal', |
| 61 | '<' => '_less_than', |
| 62 | '<=' => '_less_equal', |
| 63 | '>' => '_greater_than', |
| 64 | '>=' => '_greater_equal', |
| 65 | '=' => '_clone', |
| 66 | 'fallback' => undef; |
| 67 | |
| 68 | $CONFIG[0] = 0; |
| 69 | $CONFIG[1] = 0; |
| 70 | $CONFIG[2] = 0; |
| 71 | |
| 72 | # Configuration: |
| 73 | # |
| 74 | # 0 = Scalar Input: 0 = Bit Index (default) |
| 75 | # 1 = from_Hex |
| 76 | # 2 = from_Bin |
| 77 | # 3 = from_Dec |
| 78 | # 4 = from_Enum |
| 79 | # |
| 80 | # 1 = Operator Semantics: 0 = Set Ops (default) |
| 81 | # 1 = Arithmetic Ops |
| 82 | # |
| 83 | # Affected Operators: "+" "-" "*" |
| 84 | # "<" "<=" ">" ">=" |
| 85 | # "abs" |
| 86 | # |
| 87 | # 2 = String Output: 0 = to_Hex() (default) |
| 88 | # 1 = to_Bin() |
| 89 | # 2 = to_Dec() |
| 90 | # 3 = to_Enum() |
| 91 | |
| 92 | sub Configuration |
| 93 | { |
| 94 | my(@commands); |
| 95 | my($assignment); |
| 96 | my($which,$value); |
| 97 | my($m0,$m1,$m2,$m3,$m4); |
| 98 | my($result); |
| 99 | my($ok); |
| 100 | |
| 101 | if (@_ > 2) |
| 102 | { |
| 103 | croak('Usage: $oldconfig = Bit::Vector->Configuration( [ $newconfig ] );'); |
| 104 | } |
| 105 | $result = "Scalar Input = "; |
| 106 | if ($CONFIG[0] == 4) { $result .= "Enumeration"; } |
| 107 | elsif ($CONFIG[0] == 3) { $result .= "Decimal"; } |
| 108 | elsif ($CONFIG[0] == 2) { $result .= "Binary"; } |
| 109 | elsif ($CONFIG[0] == 1) { $result .= "Hexadecimal"; } |
| 110 | else { $result .= "Bit Index"; } |
| 111 | $result .= "\nOperator Semantics = "; |
| 112 | if ($CONFIG[1] == 1) { $result .= "Arithmetic Operators"; } |
| 113 | else { $result .= "Set Operators"; } |
| 114 | $result .= "\nString Output = "; |
| 115 | if ($CONFIG[2] == 3) { $result .= "Enumeration"; } |
| 116 | elsif ($CONFIG[2] == 2) { $result .= "Decimal"; } |
| 117 | elsif ($CONFIG[2] == 1) { $result .= "Binary"; } |
| 118 | else { $result .= "Hexadecimal"; } |
| 119 | shift if (@_ > 0); |
| 120 | if (@_ > 0) |
| 121 | { |
| 122 | $ok = 1; |
| 123 | @commands = split(/[,;:|\/\n&+-]/, $_[0]); |
| 124 | foreach $assignment (@commands) |
| 125 | { |
| 126 | if ($assignment =~ /^\s*$/) { } # ignore empty lines |
| 127 | elsif ($assignment =~ /^([A-Za-z\s]+)=([A-Za-z\s]+)$/) |
| 128 | { |
| 129 | $which = $1; |
| 130 | $value = $2; |
| 131 | $m0 = 0; |
| 132 | $m1 = 0; |
| 133 | $m2 = 0; |
| 134 | if ($which =~ /\bscalar|\binput|\bin\b/i) { $m0 = 1; } |
| 135 | if ($which =~ /\boperator|\bsemantic|\bops\b/i) { $m1 = 1; } |
| 136 | if ($which =~ /\bstring|\boutput|\bout\b/i) { $m2 = 1; } |
| 137 | if ($m0 && !$m1 && !$m2) |
| 138 | { |
| 139 | $m0 = 0; |
| 140 | $m1 = 0; |
| 141 | $m2 = 0; |
| 142 | $m3 = 0; |
| 143 | $m4 = 0; |
| 144 | if ($value =~ /\bbit\b|\bindex|\bindice/i) { $m0 = 1; } |
| 145 | if ($value =~ /\bhex/i) { $m1 = 1; } |
| 146 | if ($value =~ /\bbin/i) { $m2 = 1; } |
| 147 | if ($value =~ /\bdec/i) { $m3 = 1; } |
| 148 | if ($value =~ /\benum/i) { $m4 = 1; } |
| 149 | if ($m0 && !$m1 && !$m2 && !$m3 && !$m4) { $CONFIG[0] = 0; } |
| 150 | elsif (!$m0 && $m1 && !$m2 && !$m3 && !$m4) { $CONFIG[0] = 1; } |
| 151 | elsif (!$m0 && !$m1 && $m2 && !$m3 && !$m4) { $CONFIG[0] = 2; } |
| 152 | elsif (!$m0 && !$m1 && !$m2 && $m3 && !$m4) { $CONFIG[0] = 3; } |
| 153 | elsif (!$m0 && !$m1 && !$m2 && !$m3 && $m4) { $CONFIG[0] = 4; } |
| 154 | else { $ok = 0; last; } |
| 155 | } |
| 156 | elsif (!$m0 && $m1 && !$m2) |
| 157 | { |
| 158 | $m0 = 0; |
| 159 | $m1 = 0; |
| 160 | if ($value =~ /\bset\b/i) { $m0 = 1; } |
| 161 | if ($value =~ /\barithmetic/i) { $m1 = 1; } |
| 162 | if ($m0 && !$m1) { $CONFIG[1] = 0; } |
| 163 | elsif (!$m0 && $m1) { $CONFIG[1] = 1; } |
| 164 | else { $ok = 0; last; } |
| 165 | } |
| 166 | elsif (!$m0 && !$m1 && $m2) |
| 167 | { |
| 168 | $m0 = 0; |
| 169 | $m1 = 0; |
| 170 | $m2 = 0; |
| 171 | $m3 = 0; |
| 172 | if ($value =~ /\bhex/i) { $m0 = 1; } |
| 173 | if ($value =~ /\bbin/i) { $m1 = 1; } |
| 174 | if ($value =~ /\bdec/i) { $m2 = 1; } |
| 175 | if ($value =~ /\benum/i) { $m3 = 1; } |
| 176 | if ($m0 && !$m1 && !$m2 && !$m3) { $CONFIG[2] = 0; } |
| 177 | elsif (!$m0 && $m1 && !$m2 && !$m3) { $CONFIG[2] = 1; } |
| 178 | elsif (!$m0 && !$m1 && $m2 && !$m3) { $CONFIG[2] = 2; } |
| 179 | elsif (!$m0 && !$m1 && !$m2 && $m3) { $CONFIG[2] = 3; } |
| 180 | else { $ok = 0; last; } |
| 181 | } |
| 182 | else { $ok = 0; last; } |
| 183 | } |
| 184 | else { $ok = 0; last; } |
| 185 | } |
| 186 | unless ($ok) |
| 187 | { |
| 188 | croak('configuration string syntax error'); |
| 189 | } |
| 190 | } |
| 191 | return($result); |
| 192 | } |
| 193 | |
| 194 | sub _error |
| 195 | { |
| 196 | my($name,$code) = @_; |
| 197 | my($text); |
| 198 | |
| 199 | if ($code == 0) |
| 200 | { |
| 201 | $text = $@; |
| 202 | $text =~ s!\s+! !g; |
| 203 | $text =~ s!\s+at\s.*$!!; |
| 204 | $text =~ s!^(?:Bit::Vector::)?[a-zA-Z0-9_]+\(\):\s*!!i; |
| 205 | $text =~ s!\s+$!!; |
| 206 | } |
| 207 | elsif ($code == 1) { $text = 'illegal operand type'; } |
| 208 | elsif ($code == 2) { $text = 'illegal reversed operands'; } |
| 209 | else { croak('unexpected internal error - please contact author'); } |
| 210 | $text .= " in overloaded "; |
| 211 | if (length($name) > 5) { $text .= "$name operation"; } |
| 212 | else { $text .= "'$name' operator"; } |
| 213 | croak($text); |
| 214 | } |
| 215 | |
| 216 | sub _vectorize_ |
| 217 | { |
| 218 | my($vector,$scalar) = @_; |
| 219 | |
| 220 | if ($CONFIG[0] == 4) { $vector->from_Enum($scalar); } |
| 221 | elsif ($CONFIG[0] == 3) { $vector->from_Dec ($scalar); } |
| 222 | elsif ($CONFIG[0] == 2) { $vector->from_Bin ($scalar); } |
| 223 | elsif ($CONFIG[0] == 1) { $vector->from_Hex ($scalar); } |
| 224 | else { $vector->Bit_On ($scalar); } |
| 225 | } |
| 226 | |
| 227 | sub _scalarize_ |
| 228 | { |
| 229 | my($vector) = @_; |
| 230 | |
| 231 | if ($CONFIG[2] == 3) { return( $vector->to_Enum() ); } |
| 232 | elsif ($CONFIG[2] == 2) { return( $vector->to_Dec () ); } |
| 233 | elsif ($CONFIG[2] == 1) { return( $vector->to_Bin () ); } |
| 234 | else { return( $vector->to_Hex () ); } |
| 235 | } |
| 236 | |
| 237 | sub _fetch_operand |
| 238 | { |
| 239 | my($object,$argument,$flag,$name,$build) = @_; |
| 240 | my($operand); |
| 241 | |
| 242 | if ((defined $argument) && ref($argument) && (ref($argument) !~ /^[A-Z]+$/)) |
| 243 | { |
| 244 | eval |
| 245 | { |
| 246 | if ($build && (defined $flag)) |
| 247 | { |
| 248 | $operand = $argument->Clone(); |
| 249 | } |
| 250 | else { $operand = $argument; } |
| 251 | }; |
| 252 | if ($@) { &_error($name,0); } |
| 253 | } |
| 254 | elsif ((defined $argument) && (!ref($argument))) |
| 255 | { |
| 256 | eval |
| 257 | { |
| 258 | $operand = $object->Shadow(); |
| 259 | &_vectorize_($operand,$argument); |
| 260 | }; |
| 261 | if ($@) { &_error($name,0); } |
| 262 | } |
| 263 | else { &_error($name,1); } |
| 264 | return($operand); |
| 265 | } |
| 266 | |
| 267 | sub _check_operand |
| 268 | { |
| 269 | my($argument,$flag,$name) = @_; |
| 270 | |
| 271 | if ((defined $argument) && (!ref($argument))) |
| 272 | { |
| 273 | if ((defined $flag) && $flag) { &_error($name,2); } |
| 274 | } |
| 275 | else { &_error($name,1); } |
| 276 | } |
| 277 | |
| 278 | sub _stringify |
| 279 | { |
| 280 | my($vector) = @_; |
| 281 | my($name) = 'string interpolation'; |
| 282 | my($result); |
| 283 | |
| 284 | eval |
| 285 | { |
| 286 | $result = &_scalarize_($vector); |
| 287 | }; |
| 288 | if ($@) { &_error($name,0); } |
| 289 | return($result); |
| 290 | } |
| 291 | |
| 292 | sub _boolean |
| 293 | { |
| 294 | my($object) = @_; |
| 295 | my($name) = 'boolean test'; |
| 296 | my($result); |
| 297 | |
| 298 | eval |
| 299 | { |
| 300 | $result = $object->is_empty(); |
| 301 | }; |
| 302 | if ($@) { &_error($name,0); } |
| 303 | return(! $result); |
| 304 | } |
| 305 | |
| 306 | sub _not_boolean |
| 307 | { |
| 308 | my($object) = @_; |
| 309 | my($name) = 'negated boolean test'; |
| 310 | my($result); |
| 311 | |
| 312 | eval |
| 313 | { |
| 314 | $result = $object->is_empty(); |
| 315 | }; |
| 316 | if ($@) { &_error($name,0); } |
| 317 | return($result); |
| 318 | } |
| 319 | |
| 320 | sub _complement |
| 321 | { |
| 322 | my($object) = @_; |
| 323 | my($name) = '~'; |
| 324 | my($result); |
| 325 | |
| 326 | eval |
| 327 | { |
| 328 | $result = $object->Shadow(); |
| 329 | $result->Complement($object); |
| 330 | }; |
| 331 | if ($@) { &_error($name,0); } |
| 332 | return($result); |
| 333 | } |
| 334 | |
| 335 | sub _negate |
| 336 | { |
| 337 | my($object) = @_; |
| 338 | my($name) = 'unary minus'; |
| 339 | my($result); |
| 340 | |
| 341 | eval |
| 342 | { |
| 343 | $result = $object->Shadow(); |
| 344 | $result->Negate($object); |
| 345 | }; |
| 346 | if ($@) { &_error($name,0); } |
| 347 | return($result); |
| 348 | } |
| 349 | |
| 350 | sub _absolute |
| 351 | { |
| 352 | my($object) = @_; |
| 353 | my($name) = 'abs()'; |
| 354 | my($result); |
| 355 | |
| 356 | eval |
| 357 | { |
| 358 | if ($CONFIG[1] == 1) |
| 359 | { |
| 360 | $result = $object->Shadow(); |
| 361 | $result->Absolute($object); |
| 362 | } |
| 363 | else |
| 364 | { |
| 365 | $result = $object->Norm(); |
| 366 | } |
| 367 | }; |
| 368 | if ($@) { &_error($name,0); } |
| 369 | return($result); |
| 370 | } |
| 371 | |
| 372 | sub _concat |
| 373 | { |
| 374 | my($object,$argument,$flag) = @_; |
| 375 | my($name) = '.'; |
| 376 | my($result); |
| 377 | |
| 378 | $name .= '=' unless (defined $flag); |
| 379 | if ((defined $argument) && ref($argument) && (ref($argument) !~ /^[A-Z]+$/)) |
| 380 | { |
| 381 | eval |
| 382 | { |
| 383 | if (defined $flag) |
| 384 | { |
| 385 | if ($flag) { $result = $argument->Concat($object); } |
| 386 | else { $result = $object->Concat($argument); } |
| 387 | } |
| 388 | else |
| 389 | { |
| 390 | $object->Interval_Substitute($argument,0,0,0,$argument->Size()); |
| 391 | $result = $object; |
| 392 | } |
| 393 | }; |
| 394 | if ($@) { &_error($name,0); } |
| 395 | return($result); |
| 396 | } |
| 397 | elsif ((defined $argument) && (!ref($argument))) |
| 398 | { |
| 399 | eval |
| 400 | { |
| 401 | if (defined $flag) |
| 402 | { |
| 403 | if ($flag) { $result = $argument . &_scalarize_($object); } |
| 404 | else { $result = &_scalarize_($object) . $argument; } |
| 405 | } |
| 406 | else |
| 407 | { |
| 408 | if ($CONFIG[0] == 2) { $result = $object->new( length($argument) ); } |
| 409 | elsif ($CONFIG[0] == 1) { $result = $object->new( length($argument) << 2 ); } |
| 410 | else { $result = $object->Shadow(); } |
| 411 | &_vectorize_($result,$argument); |
| 412 | $object->Interval_Substitute($result,0,0,0,$result->Size()); |
| 413 | $result = $object; |
| 414 | } |
| 415 | }; |
| 416 | if ($@) { &_error($name,0); } |
| 417 | return($result); |
| 418 | } |
| 419 | else { &_error($name,1); } |
| 420 | } |
| 421 | |
| 422 | sub _xerox # (in Brazil, a photocopy is called a "xerox") |
| 423 | { |
| 424 | my($object,$argument,$flag) = @_; |
| 425 | my($name) = 'x'; |
| 426 | my($result); |
| 427 | my($offset); |
| 428 | my($index); |
| 429 | my($size); |
| 430 | |
| 431 | $name .= '=' unless (defined $flag); |
| 432 | &_check_operand($argument,$flag,$name); |
| 433 | eval |
| 434 | { |
| 435 | $size = $object->Size(); |
| 436 | if (defined $flag) |
| 437 | { |
| 438 | $result = $object->new($size * $argument); |
| 439 | $offset = 0; |
| 440 | $index = 0; |
| 441 | } |
| 442 | else |
| 443 | { |
| 444 | $result = $object; |
| 445 | $result->Resize($size * $argument); |
| 446 | $offset = $size; |
| 447 | $index = 1; |
| 448 | } |
| 449 | for ( ; $index < $argument; $index++, $offset += $size ) |
| 450 | { |
| 451 | $result->Interval_Copy($object,$offset,0,$size); |
| 452 | } |
| 453 | }; |
| 454 | if ($@) { &_error($name,0); } |
| 455 | return($result); |
| 456 | } |
| 457 | |
| 458 | sub _shift_left |
| 459 | { |
| 460 | my($object,$argument,$flag) = @_; |
| 461 | my($name) = '<<'; |
| 462 | my($result); |
| 463 | |
| 464 | $name .= '=' unless (defined $flag); |
| 465 | &_check_operand($argument,$flag,$name); |
| 466 | eval |
| 467 | { |
| 468 | if (defined $flag) |
| 469 | { |
| 470 | $result = $object->Clone(); |
| 471 | $result->Insert(0,$argument); |
| 472 | # $result->Move_Left($argument); |
| 473 | } |
| 474 | else |
| 475 | { |
| 476 | # $object->Move_Left($argument); |
| 477 | $object->Insert(0,$argument); |
| 478 | $result = $object; |
| 479 | } |
| 480 | }; |
| 481 | if ($@) { &_error($name,0); } |
| 482 | return($result); |
| 483 | } |
| 484 | |
| 485 | sub _shift_right |
| 486 | { |
| 487 | my($object,$argument,$flag) = @_; |
| 488 | my($name) = '>>'; |
| 489 | my($result); |
| 490 | |
| 491 | $name .= '=' unless (defined $flag); |
| 492 | &_check_operand($argument,$flag,$name); |
| 493 | eval |
| 494 | { |
| 495 | if (defined $flag) |
| 496 | { |
| 497 | $result = $object->Clone(); |
| 498 | $result->Delete(0,$argument); |
| 499 | # $result->Move_Right($argument); |
| 500 | } |
| 501 | else |
| 502 | { |
| 503 | # $object->Move_Right($argument); |
| 504 | $object->Delete(0,$argument); |
| 505 | $result = $object; |
| 506 | } |
| 507 | }; |
| 508 | if ($@) { &_error($name,0); } |
| 509 | return($result); |
| 510 | } |
| 511 | |
| 512 | sub _union_ |
| 513 | { |
| 514 | my($object,$operand,$flag) = @_; |
| 515 | |
| 516 | if (defined $flag) |
| 517 | { |
| 518 | $operand->Union($object,$operand); |
| 519 | return($operand); |
| 520 | } |
| 521 | else |
| 522 | { |
| 523 | $object->Union($object,$operand); |
| 524 | return($object); |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | sub _union |
| 529 | { |
| 530 | my($object,$argument,$flag) = @_; |
| 531 | my($name) = '|'; |
| 532 | my($operand); |
| 533 | |
| 534 | $name .= '=' unless (defined $flag); |
| 535 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 536 | eval |
| 537 | { |
| 538 | $operand = &_union_($object,$operand,$flag); |
| 539 | }; |
| 540 | if ($@) { &_error($name,0); } |
| 541 | return($operand); |
| 542 | } |
| 543 | |
| 544 | sub _intersection_ |
| 545 | { |
| 546 | my($object,$operand,$flag) = @_; |
| 547 | |
| 548 | if (defined $flag) |
| 549 | { |
| 550 | $operand->Intersection($object,$operand); |
| 551 | return($operand); |
| 552 | } |
| 553 | else |
| 554 | { |
| 555 | $object->Intersection($object,$operand); |
| 556 | return($object); |
| 557 | } |
| 558 | } |
| 559 | |
| 560 | sub _intersection |
| 561 | { |
| 562 | my($object,$argument,$flag) = @_; |
| 563 | my($name) = '&'; |
| 564 | my($operand); |
| 565 | |
| 566 | $name .= '=' unless (defined $flag); |
| 567 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 568 | eval |
| 569 | { |
| 570 | $operand = &_intersection_($object,$operand,$flag); |
| 571 | }; |
| 572 | if ($@) { &_error($name,0); } |
| 573 | return($operand); |
| 574 | } |
| 575 | |
| 576 | sub _exclusive_or |
| 577 | { |
| 578 | my($object,$argument,$flag) = @_; |
| 579 | my($name) = '^'; |
| 580 | my($operand); |
| 581 | |
| 582 | $name .= '=' unless (defined $flag); |
| 583 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 584 | eval |
| 585 | { |
| 586 | if (defined $flag) |
| 587 | { |
| 588 | $operand->ExclusiveOr($object,$operand); |
| 589 | } |
| 590 | else |
| 591 | { |
| 592 | $object->ExclusiveOr($object,$operand); |
| 593 | $operand = $object; |
| 594 | } |
| 595 | }; |
| 596 | if ($@) { &_error($name,0); } |
| 597 | return($operand); |
| 598 | } |
| 599 | |
| 600 | sub _add |
| 601 | { |
| 602 | my($object,$argument,$flag) = @_; |
| 603 | my($name) = '+'; |
| 604 | my($operand); |
| 605 | |
| 606 | $name .= '=' unless (defined $flag); |
| 607 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 608 | eval |
| 609 | { |
| 610 | if ($CONFIG[1] == 1) |
| 611 | { |
| 612 | if (defined $flag) |
| 613 | { |
| 614 | $operand->add($object,$operand,0); |
| 615 | } |
| 616 | else |
| 617 | { |
| 618 | $object->add($object,$operand,0); |
| 619 | $operand = $object; |
| 620 | } |
| 621 | } |
| 622 | else |
| 623 | { |
| 624 | $operand = &_union_($object,$operand,$flag); |
| 625 | } |
| 626 | }; |
| 627 | if ($@) { &_error($name,0); } |
| 628 | return($operand); |
| 629 | } |
| 630 | |
| 631 | sub _sub |
| 632 | { |
| 633 | my($object,$argument,$flag) = @_; |
| 634 | my($name) = '-'; |
| 635 | my($operand); |
| 636 | |
| 637 | $name .= '=' unless (defined $flag); |
| 638 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 639 | eval |
| 640 | { |
| 641 | if ($CONFIG[1] == 1) |
| 642 | { |
| 643 | if (defined $flag) |
| 644 | { |
| 645 | if ($flag) { $operand->subtract($operand,$object,0); } |
| 646 | else { $operand->subtract($object,$operand,0); } |
| 647 | } |
| 648 | else |
| 649 | { |
| 650 | $object->subtract($object,$operand,0); |
| 651 | $operand = $object; |
| 652 | } |
| 653 | } |
| 654 | else |
| 655 | { |
| 656 | if (defined $flag) |
| 657 | { |
| 658 | if ($flag) { $operand->Difference($operand,$object); } |
| 659 | else { $operand->Difference($object,$operand); } |
| 660 | } |
| 661 | else |
| 662 | { |
| 663 | $object->Difference($object,$operand); |
| 664 | $operand = $object; |
| 665 | } |
| 666 | } |
| 667 | }; |
| 668 | if ($@) { &_error($name,0); } |
| 669 | return($operand); |
| 670 | } |
| 671 | |
| 672 | sub _mul |
| 673 | { |
| 674 | my($object,$argument,$flag) = @_; |
| 675 | my($name) = '*'; |
| 676 | my($operand); |
| 677 | |
| 678 | $name .= '=' unless (defined $flag); |
| 679 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 680 | eval |
| 681 | { |
| 682 | if ($CONFIG[1] == 1) |
| 683 | { |
| 684 | if (defined $flag) |
| 685 | { |
| 686 | $operand->Multiply($object,$operand); |
| 687 | } |
| 688 | else |
| 689 | { |
| 690 | $object->Multiply($object,$operand); |
| 691 | $operand = $object; |
| 692 | } |
| 693 | } |
| 694 | else |
| 695 | { |
| 696 | $operand = &_intersection_($object,$operand,$flag); |
| 697 | } |
| 698 | }; |
| 699 | if ($@) { &_error($name,0); } |
| 700 | return($operand); |
| 701 | } |
| 702 | |
| 703 | sub _div |
| 704 | { |
| 705 | my($object,$argument,$flag) = @_; |
| 706 | my($name) = '/'; |
| 707 | my($operand); |
| 708 | my($temp); |
| 709 | |
| 710 | $name .= '=' unless (defined $flag); |
| 711 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 712 | eval |
| 713 | { |
| 714 | $temp = $object->Shadow(); |
| 715 | if (defined $flag) |
| 716 | { |
| 717 | if ($flag) { $operand->Divide($operand,$object,$temp); } |
| 718 | else { $operand->Divide($object,$operand,$temp); } |
| 719 | } |
| 720 | else |
| 721 | { |
| 722 | $object->Divide($object,$operand,$temp); |
| 723 | $operand = $object; |
| 724 | } |
| 725 | }; |
| 726 | if ($@) { &_error($name,0); } |
| 727 | return($operand); |
| 728 | } |
| 729 | |
| 730 | sub _mod |
| 731 | { |
| 732 | my($object,$argument,$flag) = @_; |
| 733 | my($name) = '%'; |
| 734 | my($operand); |
| 735 | my($temp); |
| 736 | |
| 737 | $name .= '=' unless (defined $flag); |
| 738 | $operand = &_fetch_operand($object,$argument,$flag,$name,1); |
| 739 | eval |
| 740 | { |
| 741 | $temp = $object->Shadow(); |
| 742 | if (defined $flag) |
| 743 | { |
| 744 | if ($flag) { $temp->Divide($operand,$object,$operand); } |
| 745 | else { $temp->Divide($object,$operand,$operand); } |
| 746 | } |
| 747 | else |
| 748 | { |
| 749 | $temp->Divide($object,$operand,$object); |
| 750 | $operand = $object; |
| 751 | } |
| 752 | }; |
| 753 | if ($@) { &_error($name,0); } |
| 754 | return($operand); |
| 755 | } |
| 756 | |
| 757 | sub _pow |
| 758 | { |
| 759 | my($object,$argument,$flag) = @_; |
| 760 | my($name) = '**'; |
| 761 | my($operand,$result); |
| 762 | |
| 763 | $name .= '=' unless (defined $flag); |
| 764 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 765 | eval |
| 766 | { |
| 767 | if (defined $flag) |
| 768 | { |
| 769 | $result = $object->Shadow(); |
| 770 | if ($flag) { $result->Power($operand,$object); } |
| 771 | else { $result->Power($object,$operand); } |
| 772 | } |
| 773 | else |
| 774 | { |
| 775 | $object->Power($object,$operand); |
| 776 | $result = $object; |
| 777 | } |
| 778 | }; |
| 779 | if ($@) { &_error($name,0); } |
| 780 | return($result); |
| 781 | } |
| 782 | |
| 783 | sub _assign_concat |
| 784 | { |
| 785 | my($object,$argument) = @_; |
| 786 | |
| 787 | return( &_concat($object,$argument,undef) ); |
| 788 | } |
| 789 | |
| 790 | sub _assign_xerox |
| 791 | { |
| 792 | my($object,$argument) = @_; |
| 793 | |
| 794 | return( &_xerox($object,$argument,undef) ); |
| 795 | } |
| 796 | |
| 797 | sub _assign_shift_left |
| 798 | { |
| 799 | my($object,$argument) = @_; |
| 800 | |
| 801 | return( &_shift_left($object,$argument,undef) ); |
| 802 | } |
| 803 | |
| 804 | sub _assign_shift_right |
| 805 | { |
| 806 | my($object,$argument) = @_; |
| 807 | |
| 808 | return( &_shift_right($object,$argument,undef) ); |
| 809 | } |
| 810 | |
| 811 | sub _assign_union |
| 812 | { |
| 813 | my($object,$argument) = @_; |
| 814 | |
| 815 | return( &_union($object,$argument,undef) ); |
| 816 | } |
| 817 | |
| 818 | sub _assign_intersection |
| 819 | { |
| 820 | my($object,$argument) = @_; |
| 821 | |
| 822 | return( &_intersection($object,$argument,undef) ); |
| 823 | } |
| 824 | |
| 825 | sub _assign_exclusive_or |
| 826 | { |
| 827 | my($object,$argument) = @_; |
| 828 | |
| 829 | return( &_exclusive_or($object,$argument,undef) ); |
| 830 | } |
| 831 | |
| 832 | sub _assign_add |
| 833 | { |
| 834 | my($object,$argument) = @_; |
| 835 | |
| 836 | return( &_add($object,$argument,undef) ); |
| 837 | } |
| 838 | |
| 839 | sub _assign_sub |
| 840 | { |
| 841 | my($object,$argument) = @_; |
| 842 | |
| 843 | return( &_sub($object,$argument,undef) ); |
| 844 | } |
| 845 | |
| 846 | sub _assign_mul |
| 847 | { |
| 848 | my($object,$argument) = @_; |
| 849 | |
| 850 | return( &_mul($object,$argument,undef) ); |
| 851 | } |
| 852 | |
| 853 | sub _assign_div |
| 854 | { |
| 855 | my($object,$argument) = @_; |
| 856 | |
| 857 | return( &_div($object,$argument,undef) ); |
| 858 | } |
| 859 | |
| 860 | sub _assign_mod |
| 861 | { |
| 862 | my($object,$argument) = @_; |
| 863 | |
| 864 | return( &_mod($object,$argument,undef) ); |
| 865 | } |
| 866 | |
| 867 | sub _assign_pow |
| 868 | { |
| 869 | my($object,$argument) = @_; |
| 870 | |
| 871 | return( &_pow($object,$argument,undef) ); |
| 872 | } |
| 873 | |
| 874 | sub _increment |
| 875 | { |
| 876 | my($object) = @_; |
| 877 | my($name) = '++'; |
| 878 | my($result); |
| 879 | |
| 880 | eval |
| 881 | { |
| 882 | $result = $object->increment(); |
| 883 | }; |
| 884 | if ($@) { &_error($name,0); } |
| 885 | return($result); |
| 886 | } |
| 887 | |
| 888 | sub _decrement |
| 889 | { |
| 890 | my($object) = @_; |
| 891 | my($name) = '--'; |
| 892 | my($result); |
| 893 | |
| 894 | eval |
| 895 | { |
| 896 | $result = $object->decrement(); |
| 897 | }; |
| 898 | if ($@) { &_error($name,0); } |
| 899 | return($result); |
| 900 | } |
| 901 | |
| 902 | sub _lexicompare |
| 903 | { |
| 904 | my($object,$argument,$flag) = @_; |
| 905 | my($name) = 'cmp'; |
| 906 | my($operand); |
| 907 | my($result); |
| 908 | |
| 909 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 910 | eval |
| 911 | { |
| 912 | if ((defined $flag) && $flag) |
| 913 | { |
| 914 | $result = $operand->Lexicompare($object); |
| 915 | } |
| 916 | else |
| 917 | { |
| 918 | $result = $object->Lexicompare($operand); |
| 919 | } |
| 920 | }; |
| 921 | if ($@) { &_error($name,0); } |
| 922 | return($result); |
| 923 | } |
| 924 | |
| 925 | sub _compare |
| 926 | { |
| 927 | my($object,$argument,$flag) = @_; |
| 928 | my($name) = '<=>'; |
| 929 | my($operand); |
| 930 | my($result); |
| 931 | |
| 932 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 933 | eval |
| 934 | { |
| 935 | if ((defined $flag) && $flag) |
| 936 | { |
| 937 | $result = $operand->Compare($object); |
| 938 | } |
| 939 | else |
| 940 | { |
| 941 | $result = $object->Compare($operand); |
| 942 | } |
| 943 | }; |
| 944 | if ($@) { &_error($name,0); } |
| 945 | return($result); |
| 946 | } |
| 947 | |
| 948 | sub _equal |
| 949 | { |
| 950 | my($object,$argument,$flag) = @_; |
| 951 | my($name) = '=='; |
| 952 | my($operand); |
| 953 | my($result); |
| 954 | |
| 955 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 956 | eval |
| 957 | { |
| 958 | $result = $object->equal($operand); |
| 959 | }; |
| 960 | if ($@) { &_error($name,0); } |
| 961 | return($result); |
| 962 | } |
| 963 | |
| 964 | sub _not_equal |
| 965 | { |
| 966 | my($object,$argument,$flag) = @_; |
| 967 | my($name) = '!='; |
| 968 | my($operand); |
| 969 | my($result); |
| 970 | |
| 971 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 972 | eval |
| 973 | { |
| 974 | $result = $object->equal($operand); |
| 975 | }; |
| 976 | if ($@) { &_error($name,0); } |
| 977 | return(! $result); |
| 978 | } |
| 979 | |
| 980 | sub _less_than |
| 981 | { |
| 982 | my($object,$argument,$flag) = @_; |
| 983 | my($name) = '<'; |
| 984 | my($operand); |
| 985 | my($result); |
| 986 | |
| 987 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 988 | eval |
| 989 | { |
| 990 | if ($CONFIG[1] == 1) |
| 991 | { |
| 992 | if ((defined $flag) && $flag) |
| 993 | { |
| 994 | $result = ($operand->Compare($object) < 0); |
| 995 | } |
| 996 | else |
| 997 | { |
| 998 | $result = ($object->Compare($operand) < 0); |
| 999 | } |
| 1000 | } |
| 1001 | else |
| 1002 | { |
| 1003 | if ((defined $flag) && $flag) |
| 1004 | { |
| 1005 | $result = ((!$operand->equal($object)) && |
| 1006 | ($operand->subset($object))); |
| 1007 | } |
| 1008 | else |
| 1009 | { |
| 1010 | $result = ((!$object->equal($operand)) && |
| 1011 | ($object->subset($operand))); |
| 1012 | } |
| 1013 | } |
| 1014 | }; |
| 1015 | if ($@) { &_error($name,0); } |
| 1016 | return($result); |
| 1017 | } |
| 1018 | |
| 1019 | sub _less_equal |
| 1020 | { |
| 1021 | my($object,$argument,$flag) = @_; |
| 1022 | my($name) = '<='; |
| 1023 | my($operand); |
| 1024 | my($result); |
| 1025 | |
| 1026 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 1027 | eval |
| 1028 | { |
| 1029 | if ($CONFIG[1] == 1) |
| 1030 | { |
| 1031 | if ((defined $flag) && $flag) |
| 1032 | { |
| 1033 | $result = ($operand->Compare($object) <= 0); |
| 1034 | } |
| 1035 | else |
| 1036 | { |
| 1037 | $result = ($object->Compare($operand) <= 0); |
| 1038 | } |
| 1039 | } |
| 1040 | else |
| 1041 | { |
| 1042 | if ((defined $flag) && $flag) |
| 1043 | { |
| 1044 | $result = $operand->subset($object); |
| 1045 | } |
| 1046 | else |
| 1047 | { |
| 1048 | $result = $object->subset($operand); |
| 1049 | } |
| 1050 | } |
| 1051 | }; |
| 1052 | if ($@) { &_error($name,0); } |
| 1053 | return($result); |
| 1054 | } |
| 1055 | |
| 1056 | sub _greater_than |
| 1057 | { |
| 1058 | my($object,$argument,$flag) = @_; |
| 1059 | my($name) = '>'; |
| 1060 | my($operand); |
| 1061 | my($result); |
| 1062 | |
| 1063 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 1064 | eval |
| 1065 | { |
| 1066 | if ($CONFIG[1] == 1) |
| 1067 | { |
| 1068 | if ((defined $flag) && $flag) |
| 1069 | { |
| 1070 | $result = ($operand->Compare($object) > 0); |
| 1071 | } |
| 1072 | else |
| 1073 | { |
| 1074 | $result = ($object->Compare($operand) > 0); |
| 1075 | } |
| 1076 | } |
| 1077 | else |
| 1078 | { |
| 1079 | if ((defined $flag) && $flag) |
| 1080 | { |
| 1081 | $result = ((!$object->equal($operand)) && |
| 1082 | ($object->subset($operand))); |
| 1083 | } |
| 1084 | else |
| 1085 | { |
| 1086 | $result = ((!$operand->equal($object)) && |
| 1087 | ($operand->subset($object))); |
| 1088 | } |
| 1089 | } |
| 1090 | }; |
| 1091 | if ($@) { &_error($name,0); } |
| 1092 | return($result); |
| 1093 | } |
| 1094 | |
| 1095 | sub _greater_equal |
| 1096 | { |
| 1097 | my($object,$argument,$flag) = @_; |
| 1098 | my($name) = '>='; |
| 1099 | my($operand); |
| 1100 | my($result); |
| 1101 | |
| 1102 | $operand = &_fetch_operand($object,$argument,$flag,$name,0); |
| 1103 | eval |
| 1104 | { |
| 1105 | if ($CONFIG[1] == 1) |
| 1106 | { |
| 1107 | if ((defined $flag) && $flag) |
| 1108 | { |
| 1109 | $result = ($operand->Compare($object) >= 0); |
| 1110 | } |
| 1111 | else |
| 1112 | { |
| 1113 | $result = ($object->Compare($operand) >= 0); |
| 1114 | } |
| 1115 | } |
| 1116 | else |
| 1117 | { |
| 1118 | if ((defined $flag) && $flag) |
| 1119 | { |
| 1120 | $result = $object->subset($operand); |
| 1121 | } |
| 1122 | else |
| 1123 | { |
| 1124 | $result = $operand->subset($object); |
| 1125 | } |
| 1126 | } |
| 1127 | }; |
| 1128 | if ($@) { &_error($name,0); } |
| 1129 | return($result); |
| 1130 | } |
| 1131 | |
| 1132 | sub _clone |
| 1133 | { |
| 1134 | my($object) = @_; |
| 1135 | my($name) = 'automatic duplication'; |
| 1136 | my($result); |
| 1137 | |
| 1138 | eval |
| 1139 | { |
| 1140 | $result = $object->Clone(); |
| 1141 | }; |
| 1142 | if ($@) { &_error($name,0); } |
| 1143 | return($result); |
| 1144 | } |
| 1145 | |
| 1146 | 1; |
| 1147 | |
| 1148 | __END__ |
| 1149 | |