| Commit | Line | Data |
|---|
| a0d0e21e |
1 | /* pp_ctl.c |
| 2 | * |
| 3 | * Copyright (c) 1991-1994, Larry Wall |
| 4 | * |
| 5 | * You may distribute under the terms of either the GNU General Public |
| 6 | * License or the Artistic License, as specified in the README file. |
| 7 | * |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * Now far ahead the Road has gone, |
| 12 | * And I must follow, if I can, |
| 13 | * Pursuing it with eager feet, |
| 14 | * Until it joins some larger way |
| 15 | * Where many paths and errands meet. |
| 16 | * And whither then? I cannot say. |
| 17 | */ |
| 18 | |
| 19 | #include "EXTERN.h" |
| 20 | #include "perl.h" |
| 21 | |
| 22 | #ifndef WORD_ALIGN |
| 23 | #define WORD_ALIGN sizeof(U16) |
| 24 | #endif |
| 25 | |
| 26 | static OP *doeval _((int gimme)); |
| 27 | static OP *dofindlabel _((OP *op, char *label, OP **opstack)); |
| 28 | static void doparseform _((SV *sv)); |
| 29 | static I32 dopoptoeval _((I32 startingblock)); |
| 30 | static I32 dopoptolabel _((char *label)); |
| 31 | static I32 dopoptoloop _((I32 startingblock)); |
| 32 | static I32 dopoptosub _((I32 startingblock)); |
| 33 | static void save_lines _((AV *array, SV *sv)); |
| 34 | static int sortcmp _((const void *, const void *)); |
| 35 | static int sortcv _((const void *, const void *)); |
| 36 | |
| 37 | static I32 sortcxix; |
| 38 | |
| 39 | PP(pp_wantarray) |
| 40 | { |
| 41 | dSP; |
| 42 | I32 cxix; |
| 43 | EXTEND(SP, 1); |
| 44 | |
| 45 | cxix = dopoptosub(cxstack_ix); |
| 46 | if (cxix < 0) |
| 47 | RETPUSHUNDEF; |
| 48 | |
| 49 | if (cxstack[cxix].blk_gimme == G_ARRAY) |
| 50 | RETPUSHYES; |
| 51 | else |
| 52 | RETPUSHNO; |
| 53 | } |
| 54 | |
| 55 | PP(pp_regcmaybe) |
| 56 | { |
| 57 | return NORMAL; |
| 58 | } |
| 59 | |
| 60 | PP(pp_regcomp) { |
| 61 | dSP; |
| 62 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
| 63 | register char *t; |
| 64 | SV *tmpstr; |
| 65 | STRLEN len; |
| 66 | |
| 67 | tmpstr = POPs; |
| 68 | t = SvPV(tmpstr, len); |
| 69 | |
| 70 | if (pm->op_pmregexp) { |
| 71 | regfree(pm->op_pmregexp); |
| 72 | pm->op_pmregexp = Null(REGEXP*); /* crucial if regcomp aborts */ |
| 73 | } |
| 74 | |
| 75 | pm->op_pmregexp = regcomp(t, t + len, pm); |
| 76 | |
| 77 | if (!pm->op_pmregexp->prelen && curpm) |
| 78 | pm = curpm; |
| 79 | else if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
| 80 | pm->op_pmflags |= PMf_WHITE; |
| 81 | |
| 82 | if (pm->op_pmflags & PMf_KEEP) { |
| 83 | #ifdef NOTDEF |
| 84 | if (!(pm->op_pmflags & PMf_FOLD)) |
| 85 | scan_prefix(pm, pm->op_pmregexp->precomp, |
| 86 | pm->op_pmregexp->prelen); |
| 87 | #endif |
| 88 | pm->op_pmflags &= ~PMf_RUNTIME; /* no point compiling again */ |
| 89 | hoistmust(pm); |
| 90 | cLOGOP->op_first->op_next = op->op_next; |
| 91 | /* XXX delete push code? */ |
| 92 | } |
| 93 | RETURN; |
| 94 | } |
| 95 | |
| 96 | PP(pp_substcont) |
| 97 | { |
| 98 | dSP; |
| 99 | register PMOP *pm = (PMOP*) cLOGOP->op_other; |
| 100 | register CONTEXT *cx = &cxstack[cxstack_ix]; |
| 101 | register SV *dstr = cx->sb_dstr; |
| 102 | register char *s = cx->sb_s; |
| 103 | register char *m = cx->sb_m; |
| 104 | char *orig = cx->sb_orig; |
| 105 | register REGEXP *rx = pm->op_pmregexp; |
| 106 | |
| 107 | if (cx->sb_iters++) { |
| 108 | if (cx->sb_iters > cx->sb_maxiters) |
| 109 | DIE("Substitution loop"); |
| 110 | |
| 111 | sv_catsv(dstr, POPs); |
| 112 | if (rx->subbase) |
| 113 | Safefree(rx->subbase); |
| 114 | rx->subbase = cx->sb_subbase; |
| 115 | |
| 116 | /* Are we done */ |
| 117 | if (cx->sb_once || !regexec(rx, s, cx->sb_strend, orig, |
| 118 | s == m, Nullsv, cx->sb_safebase)) |
| 119 | { |
| 120 | SV *targ = cx->sb_targ; |
| 121 | sv_catpvn(dstr, s, cx->sb_strend - s); |
| 122 | sv_replace(targ, dstr); |
| 123 | (void)SvPOK_only(targ); |
| 124 | SvSETMAGIC(targ); |
| 125 | PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1))); |
| 126 | POPSUBST(cx); |
| 127 | RETURNOP(pm->op_next); |
| 128 | } |
| 129 | } |
| 130 | if (rx->subbase && rx->subbase != orig) { |
| 131 | m = s; |
| 132 | s = orig; |
| 133 | cx->sb_orig = orig = rx->subbase; |
| 134 | s = orig + (m - s); |
| 135 | cx->sb_strend = s + (cx->sb_strend - m); |
| 136 | } |
| 137 | cx->sb_m = m = rx->startp[0]; |
| 138 | sv_catpvn(dstr, s, m-s); |
| 139 | cx->sb_s = rx->endp[0]; |
| 140 | cx->sb_subbase = rx->subbase; |
| 141 | |
| 142 | rx->subbase = Nullch; /* so recursion works */ |
| 143 | RETURNOP(pm->op_pmreplstart); |
| 144 | } |
| 145 | |
| 146 | PP(pp_formline) |
| 147 | { |
| 148 | dSP; dMARK; dORIGMARK; |
| 149 | register SV *form = *++MARK; |
| 150 | register U16 *fpc; |
| 151 | register char *t; |
| 152 | register char *f; |
| 153 | register char *s; |
| 154 | register char *send; |
| 155 | register I32 arg; |
| 156 | register SV *sv; |
| 157 | char *item; |
| 158 | I32 itemsize; |
| 159 | I32 fieldsize; |
| 160 | I32 lines = 0; |
| 161 | bool chopspace = (strchr(chopset, ' ') != Nullch); |
| 162 | char *chophere; |
| 163 | char *linemark; |
| 164 | char *formmark; |
| 165 | SV **markmark; |
| 166 | double value; |
| 167 | bool gotsome; |
| 168 | STRLEN len; |
| 169 | |
| 170 | if (!SvCOMPILED(form)) { |
| 171 | SvREADONLY_off(form); |
| 172 | doparseform(form); |
| 173 | } |
| 174 | |
| 175 | SvPV_force(formtarget, len); |
| 176 | t = SvGROW(formtarget, len + SvCUR(form) + 1); /* XXX SvCUR bad */ |
| 177 | t += len; |
| 178 | f = SvPV(form, len); |
| 179 | /* need to jump to the next word */ |
| 180 | s = f + len + WORD_ALIGN - SvCUR(form) % WORD_ALIGN; |
| 181 | |
| 182 | fpc = (U16*)s; |
| 183 | |
| 184 | for (;;) { |
| 185 | DEBUG_f( { |
| 186 | char *name = "???"; |
| 187 | arg = -1; |
| 188 | switch (*fpc) { |
| 189 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; |
| 190 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; |
| 191 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; |
| 192 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; |
| 193 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; |
| 194 | |
| 195 | case FF_CHECKNL: name = "CHECKNL"; break; |
| 196 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; |
| 197 | case FF_SPACE: name = "SPACE"; break; |
| 198 | case FF_HALFSPACE: name = "HALFSPACE"; break; |
| 199 | case FF_ITEM: name = "ITEM"; break; |
| 200 | case FF_CHOP: name = "CHOP"; break; |
| 201 | case FF_LINEGLOB: name = "LINEGLOB"; break; |
| 202 | case FF_NEWLINE: name = "NEWLINE"; break; |
| 203 | case FF_MORE: name = "MORE"; break; |
| 204 | case FF_LINEMARK: name = "LINEMARK"; break; |
| 205 | case FF_END: name = "END"; break; |
| 206 | } |
| 207 | if (arg >= 0) |
| 208 | fprintf(stderr, "%-16s%ld\n", name, (long) arg); |
| 209 | else |
| 210 | fprintf(stderr, "%-16s\n", name); |
| 211 | } ) |
| 212 | switch (*fpc++) { |
| 213 | case FF_LINEMARK: |
| 214 | linemark = t; |
| 215 | formmark = f; |
| 216 | markmark = MARK; |
| 217 | lines++; |
| 218 | gotsome = FALSE; |
| 219 | break; |
| 220 | |
| 221 | case FF_LITERAL: |
| 222 | arg = *fpc++; |
| 223 | while (arg--) |
| 224 | *t++ = *f++; |
| 225 | break; |
| 226 | |
| 227 | case FF_SKIP: |
| 228 | f += *fpc++; |
| 229 | break; |
| 230 | |
| 231 | case FF_FETCH: |
| 232 | arg = *fpc++; |
| 233 | f += arg; |
| 234 | fieldsize = arg; |
| 235 | |
| 236 | if (MARK < SP) |
| 237 | sv = *++MARK; |
| 238 | else { |
| 239 | sv = &sv_no; |
| 240 | if (dowarn) |
| 241 | warn("Not enough format arguments"); |
| 242 | } |
| 243 | break; |
| 244 | |
| 245 | case FF_CHECKNL: |
| 246 | item = s = SvPV(sv, len); |
| 247 | itemsize = len; |
| 248 | if (itemsize > fieldsize) |
| 249 | itemsize = fieldsize; |
| 250 | send = chophere = s + itemsize; |
| 251 | while (s < send) { |
| 252 | if (*s & ~31) |
| 253 | gotsome = TRUE; |
| 254 | else if (*s == '\n') |
| 255 | break; |
| 256 | s++; |
| 257 | } |
| 258 | itemsize = s - item; |
| 259 | break; |
| 260 | |
| 261 | case FF_CHECKCHOP: |
| 262 | item = s = SvPV(sv, len); |
| 263 | itemsize = len; |
| 264 | if (itemsize <= fieldsize) { |
| 265 | send = chophere = s + itemsize; |
| 266 | while (s < send) { |
| 267 | if (*s == '\r') { |
| 268 | itemsize = s - item; |
| 269 | break; |
| 270 | } |
| 271 | if (*s++ & ~31) |
| 272 | gotsome = TRUE; |
| 273 | } |
| 274 | } |
| 275 | else { |
| 276 | itemsize = fieldsize; |
| 277 | send = chophere = s + itemsize; |
| 278 | while (s < send || (s == send && isSPACE(*s))) { |
| 279 | if (isSPACE(*s)) { |
| 280 | if (chopspace) |
| 281 | chophere = s; |
| 282 | if (*s == '\r') |
| 283 | break; |
| 284 | } |
| 285 | else { |
| 286 | if (*s & ~31) |
| 287 | gotsome = TRUE; |
| 288 | if (strchr(chopset, *s)) |
| 289 | chophere = s + 1; |
| 290 | } |
| 291 | s++; |
| 292 | } |
| 293 | itemsize = chophere - item; |
| 294 | } |
| 295 | break; |
| 296 | |
| 297 | case FF_SPACE: |
| 298 | arg = fieldsize - itemsize; |
| 299 | if (arg) { |
| 300 | fieldsize -= arg; |
| 301 | while (arg-- > 0) |
| 302 | *t++ = ' '; |
| 303 | } |
| 304 | break; |
| 305 | |
| 306 | case FF_HALFSPACE: |
| 307 | arg = fieldsize - itemsize; |
| 308 | if (arg) { |
| 309 | arg /= 2; |
| 310 | fieldsize -= arg; |
| 311 | while (arg-- > 0) |
| 312 | *t++ = ' '; |
| 313 | } |
| 314 | break; |
| 315 | |
| 316 | case FF_ITEM: |
| 317 | arg = itemsize; |
| 318 | s = item; |
| 319 | while (arg--) { |
| 320 | #if 'z' - 'a' != 25 |
| 321 | int ch = *t++ = *s++; |
| 322 | if (!iscntrl(ch)) |
| 323 | t[-1] = ' '; |
| 324 | #else |
| 325 | if ( !((*t++ = *s++) & ~31) ) |
| 326 | t[-1] = ' '; |
| 327 | #endif |
| 328 | |
| 329 | } |
| 330 | break; |
| 331 | |
| 332 | case FF_CHOP: |
| 333 | s = chophere; |
| 334 | if (chopspace) { |
| 335 | while (*s && isSPACE(*s)) |
| 336 | s++; |
| 337 | } |
| 338 | sv_chop(sv,s); |
| 339 | break; |
| 340 | |
| 341 | case FF_LINEGLOB: |
| 342 | item = s = SvPV(sv, len); |
| 343 | itemsize = len; |
| 344 | if (itemsize) { |
| 345 | gotsome = TRUE; |
| 346 | send = s + itemsize; |
| 347 | while (s < send) { |
| 348 | if (*s++ == '\n') { |
| 349 | if (s == send) |
| 350 | itemsize--; |
| 351 | else |
| 352 | lines++; |
| 353 | } |
| 354 | } |
| 355 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
| 356 | sv_catpvn(formtarget, item, itemsize); |
| 357 | SvGROW(formtarget, SvCUR(formtarget) + SvCUR(form) + 1); |
| 358 | t = SvPVX(formtarget) + SvCUR(formtarget); |
| 359 | } |
| 360 | break; |
| 361 | |
| 362 | case FF_DECIMAL: |
| 363 | /* If the field is marked with ^ and the value is undefined, |
| 364 | blank it out. */ |
| 365 | arg = *fpc++; |
| 366 | if ((arg & 512) && !SvOK(sv)) { |
| 367 | arg = fieldsize; |
| 368 | while (arg--) |
| 369 | *t++ = ' '; |
| 370 | break; |
| 371 | } |
| 372 | gotsome = TRUE; |
| 373 | value = SvNV(sv); |
| 374 | if (arg & 256) { |
| 375 | sprintf(t, "%#*.*f", (int) fieldsize, (int) arg & 255, value); |
| 376 | } else { |
| 377 | sprintf(t, "%*.0f", (int) fieldsize, value); |
| 378 | } |
| 379 | t += fieldsize; |
| 380 | break; |
| 381 | |
| 382 | case FF_NEWLINE: |
| 383 | f++; |
| 384 | while (t-- > linemark && *t == ' ') ; |
| 385 | t++; |
| 386 | *t++ = '\n'; |
| 387 | break; |
| 388 | |
| 389 | case FF_BLANK: |
| 390 | arg = *fpc++; |
| 391 | if (gotsome) { |
| 392 | if (arg) { /* repeat until fields exhausted? */ |
| 393 | *t = '\0'; |
| 394 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
| 395 | lines += FmLINES(formtarget); |
| 396 | if (lines == 200) { |
| 397 | arg = t - linemark; |
| 398 | if (strnEQ(linemark, linemark - arg, arg)) |
| 399 | DIE("Runaway format"); |
| 400 | } |
| 401 | FmLINES(formtarget) = lines; |
| 402 | SP = ORIGMARK; |
| 403 | RETURNOP(cLISTOP->op_first); |
| 404 | } |
| 405 | } |
| 406 | else { |
| 407 | t = linemark; |
| 408 | lines--; |
| 409 | } |
| 410 | break; |
| 411 | |
| 412 | case FF_MORE: |
| 413 | if (itemsize) { |
| 414 | arg = fieldsize - itemsize; |
| 415 | if (arg) { |
| 416 | fieldsize -= arg; |
| 417 | while (arg-- > 0) |
| 418 | *t++ = ' '; |
| 419 | } |
| 420 | s = t - 3; |
| 421 | if (strnEQ(s," ",3)) { |
| 422 | while (s > SvPVX(formtarget) && isSPACE(s[-1])) |
| 423 | s--; |
| 424 | } |
| 425 | *s++ = '.'; |
| 426 | *s++ = '.'; |
| 427 | *s++ = '.'; |
| 428 | } |
| 429 | break; |
| 430 | |
| 431 | case FF_END: |
| 432 | *t = '\0'; |
| 433 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
| 434 | FmLINES(formtarget) += lines; |
| 435 | SP = ORIGMARK; |
| 436 | RETPUSHYES; |
| 437 | } |
| 438 | } |
| 439 | } |
| 440 | |
| 441 | PP(pp_grepstart) |
| 442 | { |
| 443 | dSP; |
| 444 | SV *src; |
| 445 | |
| 446 | if (stack_base + *markstack_ptr == sp) { |
| 447 | (void)POPMARK; |
| 448 | if (GIMME != G_ARRAY) |
| 449 | XPUSHs(&sv_no); |
| 450 | RETURNOP(op->op_next->op_next); |
| 451 | } |
| 452 | stack_sp = stack_base + *markstack_ptr + 1; |
| 453 | pp_pushmark(); /* push dst */ |
| 454 | pp_pushmark(); /* push src */ |
| 455 | ENTER; /* enter outer scope */ |
| 456 | |
| 457 | SAVETMPS; |
| 458 | SAVESPTR(GvSV(defgv)); |
| 459 | |
| 460 | ENTER; /* enter inner scope */ |
| 461 | SAVESPTR(curpm); |
| 462 | |
| 463 | src = stack_base[*markstack_ptr]; |
| 464 | SvTEMP_off(src); |
| 465 | GvSV(defgv) = src; |
| 466 | |
| 467 | PUTBACK; |
| 468 | if (op->op_type == OP_MAPSTART) |
| 469 | pp_pushmark(); /* push top */ |
| 470 | return ((LOGOP*)op->op_next)->op_other; |
| 471 | } |
| 472 | |
| 473 | PP(pp_mapstart) |
| 474 | { |
| 475 | DIE("panic: mapstart"); /* uses grepstart */ |
| 476 | } |
| 477 | |
| 478 | PP(pp_mapwhile) |
| 479 | { |
| 480 | dSP; |
| 481 | I32 diff = (sp - stack_base) - *markstack_ptr; |
| 482 | I32 count; |
| 483 | I32 shift; |
| 484 | SV** src; |
| 485 | SV** dst; |
| 486 | |
| 487 | ++markstack_ptr[-1]; |
| 488 | if (diff) { |
| 489 | if (diff > markstack_ptr[-1] - markstack_ptr[-2]) { |
| 490 | shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]); |
| 491 | count = (sp - stack_base) - markstack_ptr[-1] + 2; |
| 492 | |
| 493 | EXTEND(sp,shift); |
| 494 | src = sp; |
| 495 | dst = (sp += shift); |
| 496 | markstack_ptr[-1] += shift; |
| 497 | *markstack_ptr += shift; |
| 498 | while (--count) |
| 499 | *dst-- = *src--; |
| 500 | } |
| 501 | dst = stack_base + (markstack_ptr[-2] += diff) - 1; |
| 502 | ++diff; |
| 503 | while (--diff) |
| 504 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); |
| 505 | } |
| 506 | LEAVE; /* exit inner scope */ |
| 507 | |
| 508 | /* All done yet? */ |
| 509 | if (markstack_ptr[-1] > *markstack_ptr) { |
| 510 | I32 items; |
| 511 | |
| 512 | (void)POPMARK; /* pop top */ |
| 513 | LEAVE; /* exit outer scope */ |
| 514 | (void)POPMARK; /* pop src */ |
| 515 | items = --*markstack_ptr - markstack_ptr[-1]; |
| 516 | (void)POPMARK; /* pop dst */ |
| 517 | SP = stack_base + POPMARK; /* pop original mark */ |
| 518 | if (GIMME != G_ARRAY) { |
| 519 | dTARGET; |
| 520 | XPUSHi(items); |
| 521 | RETURN; |
| 522 | } |
| 523 | SP += items; |
| 524 | RETURN; |
| 525 | } |
| 526 | else { |
| 527 | SV *src; |
| 528 | |
| 529 | ENTER; /* enter inner scope */ |
| 530 | SAVESPTR(curpm); |
| 531 | |
| 532 | src = stack_base[markstack_ptr[-1]]; |
| 533 | SvTEMP_off(src); |
| 534 | GvSV(defgv) = src; |
| 535 | |
| 536 | RETURNOP(cLOGOP->op_other); |
| 537 | } |
| 538 | } |
| 539 | |
| 540 | |
| 541 | PP(pp_sort) |
| 542 | { |
| 543 | dSP; dMARK; dORIGMARK; |
| 544 | register SV **up; |
| 545 | SV **myorigmark = ORIGMARK; |
| 546 | register I32 max; |
| 547 | HV *stash; |
| 548 | GV *gv; |
| 549 | CV *cv; |
| 550 | I32 gimme = GIMME; |
| 551 | OP* nextop = op->op_next; |
| 552 | |
| 553 | if (gimme != G_ARRAY) { |
| 554 | SP = MARK; |
| 555 | RETPUSHUNDEF; |
| 556 | } |
| 557 | |
| 558 | if (op->op_flags & OPf_STACKED) { |
| 559 | ENTER; |
| 560 | if (op->op_flags & OPf_SPECIAL) { |
| 561 | OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */ |
| 562 | kid = kUNOP->op_first; /* pass rv2gv */ |
| 563 | kid = kUNOP->op_first; /* pass leave */ |
| 564 | sortcop = kid->op_next; |
| 565 | stash = curcop->cop_stash; |
| 566 | } |
| 567 | else { |
| 568 | cv = sv_2cv(*++MARK, &stash, &gv, 0); |
| 569 | if (!(cv && CvROOT(cv))) { |
| 570 | if (gv) { |
| 571 | SV *tmpstr = sv_newmortal(); |
| 572 | gv_efullname(tmpstr, gv); |
| 573 | if (cv && CvXSUB(cv)) |
| 574 | DIE("Xsub \"%s\" called in sort", SvPVX(tmpstr)); |
| 575 | DIE("Undefined sort subroutine \"%s\" called", |
| 576 | SvPVX(tmpstr)); |
| 577 | } |
| 578 | if (cv) { |
| 579 | if (CvXSUB(cv)) |
| 580 | DIE("Xsub called in sort"); |
| 581 | DIE("Undefined subroutine in sort"); |
| 582 | } |
| 583 | DIE("Not a CODE reference in sort"); |
| 584 | } |
| 585 | sortcop = CvSTART(cv); |
| 586 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
| 587 | CvROOT(cv)->op_ppaddr = ppaddr[OP_NULL]; |
| 588 | |
| 589 | SAVESPTR(curpad); |
| 590 | curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
| 591 | } |
| 592 | } |
| 593 | else { |
| 594 | sortcop = Nullop; |
| 595 | stash = curcop->cop_stash; |
| 596 | } |
| 597 | |
| 598 | up = myorigmark + 1; |
| 599 | while (MARK < SP) { /* This may or may not shift down one here. */ |
| 600 | /*SUPPRESS 560*/ |
| 601 | if (*up = *++MARK) { /* Weed out nulls. */ |
| 602 | if (!SvPOK(*up)) |
| 603 | (void)sv_2pv(*up, &na); |
| 604 | else |
| 605 | SvTEMP_off(*up); |
| 606 | up++; |
| 607 | } |
| 608 | } |
| 609 | max = --up - myorigmark; |
| 610 | if (sortcop) { |
| 611 | if (max > 1) { |
| 612 | AV *oldstack; |
| 613 | CONTEXT *cx; |
| 614 | SV** newsp; |
| 615 | |
| 616 | SAVETMPS; |
| 617 | SAVESPTR(op); |
| 618 | |
| 619 | oldstack = stack; |
| 620 | if (!sortstack) { |
| 621 | sortstack = newAV(); |
| 622 | AvREAL_off(sortstack); |
| 623 | av_extend(sortstack, 32); |
| 624 | } |
| 625 | SWITCHSTACK(stack, sortstack); |
| 626 | if (sortstash != stash) { |
| 627 | firstgv = gv_fetchpv("a", TRUE, SVt_PV); |
| 628 | secondgv = gv_fetchpv("b", TRUE, SVt_PV); |
| 629 | sortstash = stash; |
| 630 | } |
| 631 | |
| 632 | SAVESPTR(GvSV(firstgv)); |
| 633 | SAVESPTR(GvSV(secondgv)); |
| 634 | PUSHBLOCK(cx, CXt_LOOP, stack_base); |
| 635 | sortcxix = cxstack_ix; |
| 636 | |
| 637 | qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv); |
| 638 | |
| 639 | POPBLOCK(cx,curpm); |
| 640 | SWITCHSTACK(sortstack, oldstack); |
| 641 | } |
| 642 | LEAVE; |
| 643 | } |
| 644 | else { |
| 645 | if (max > 1) { |
| 646 | MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */ |
| 647 | qsort((char*)(ORIGMARK+1), max, sizeof(SV*), sortcmp); |
| 648 | } |
| 649 | } |
| 650 | stack_sp = ORIGMARK + max; |
| 651 | return nextop; |
| 652 | } |
| 653 | |
| 654 | /* Range stuff. */ |
| 655 | |
| 656 | PP(pp_range) |
| 657 | { |
| 658 | if (GIMME == G_ARRAY) |
| 659 | return cCONDOP->op_true; |
| 660 | return SvTRUEx(PAD_SV(op->op_targ)) ? cCONDOP->op_false : cCONDOP->op_true; |
| 661 | } |
| 662 | |
| 663 | PP(pp_flip) |
| 664 | { |
| 665 | dSP; |
| 666 | |
| 667 | if (GIMME == G_ARRAY) { |
| 668 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
| 669 | } |
| 670 | else { |
| 671 | dTOPss; |
| 672 | SV *targ = PAD_SV(op->op_targ); |
| 673 | |
| 674 | if ((op->op_private & OPpFLIP_LINENUM) |
| 675 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
| 676 | : SvTRUE(sv) ) { |
| 677 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
| 678 | if (op->op_flags & OPf_SPECIAL) { |
| 679 | sv_setiv(targ, 1); |
| 680 | RETURN; |
| 681 | } |
| 682 | else { |
| 683 | sv_setiv(targ, 0); |
| 684 | sp--; |
| 685 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
| 686 | } |
| 687 | } |
| 688 | sv_setpv(TARG, ""); |
| 689 | SETs(targ); |
| 690 | RETURN; |
| 691 | } |
| 692 | } |
| 693 | |
| 694 | PP(pp_flop) |
| 695 | { |
| 696 | dSP; |
| 697 | |
| 698 | if (GIMME == G_ARRAY) { |
| 699 | dPOPPOPssrl; |
| 700 | register I32 i; |
| 701 | register SV *sv; |
| 702 | I32 max; |
| 703 | |
| 704 | if (SvNIOK(left) || !SvPOK(left) || |
| 705 | (looks_like_number(left) && *SvPVX(left) != '0') ) { |
| 706 | i = SvIV(left); |
| 707 | max = SvIV(right); |
| 708 | if (max > i) |
| 709 | EXTEND(SP, max - i + 1); |
| 710 | while (i <= max) { |
| 711 | sv = sv_mortalcopy(&sv_no); |
| 712 | sv_setiv(sv,i++); |
| 713 | PUSHs(sv); |
| 714 | } |
| 715 | } |
| 716 | else { |
| 717 | SV *final = sv_mortalcopy(right); |
| 718 | STRLEN len; |
| 719 | char *tmps = SvPV(final, len); |
| 720 | |
| 721 | sv = sv_mortalcopy(left); |
| 722 | while (!SvNIOK(sv) && SvCUR(sv) <= len && |
| 723 | strNE(SvPVX(sv),tmps) ) { |
| 724 | XPUSHs(sv); |
| 725 | sv = sv_2mortal(newSVsv(sv)); |
| 726 | sv_inc(sv); |
| 727 | } |
| 728 | if (strEQ(SvPVX(sv),tmps)) |
| 729 | XPUSHs(sv); |
| 730 | } |
| 731 | } |
| 732 | else { |
| 733 | dTOPss; |
| 734 | SV *targ = PAD_SV(cUNOP->op_first->op_targ); |
| 735 | sv_inc(targ); |
| 736 | if ((op->op_private & OPpFLIP_LINENUM) |
| 737 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
| 738 | : SvTRUE(sv) ) { |
| 739 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
| 740 | sv_catpv(targ, "E0"); |
| 741 | } |
| 742 | SETs(targ); |
| 743 | } |
| 744 | |
| 745 | RETURN; |
| 746 | } |
| 747 | |
| 748 | /* Control. */ |
| 749 | |
| 750 | static I32 |
| 751 | dopoptolabel(label) |
| 752 | char *label; |
| 753 | { |
| 754 | register I32 i; |
| 755 | register CONTEXT *cx; |
| 756 | |
| 757 | for (i = cxstack_ix; i >= 0; i--) { |
| 758 | cx = &cxstack[i]; |
| 759 | switch (cx->cx_type) { |
| 760 | case CXt_SUBST: |
| 761 | if (dowarn) |
| 762 | warn("Exiting substitution via %s", op_name[op->op_type]); |
| 763 | break; |
| 764 | case CXt_SUB: |
| 765 | if (dowarn) |
| 766 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
| 767 | break; |
| 768 | case CXt_EVAL: |
| 769 | if (dowarn) |
| 770 | warn("Exiting eval via %s", op_name[op->op_type]); |
| 771 | break; |
| 772 | case CXt_LOOP: |
| 773 | if (!cx->blk_loop.label || |
| 774 | strNE(label, cx->blk_loop.label) ) { |
| 775 | DEBUG_l(deb("(Skipping label #%d %s)\n", |
| 776 | i, cx->blk_loop.label)); |
| 777 | continue; |
| 778 | } |
| 779 | DEBUG_l( deb("(Found label #%d %s)\n", i, label)); |
| 780 | return i; |
| 781 | } |
| 782 | } |
| 783 | return i; |
| 784 | } |
| 785 | |
| 786 | static I32 |
| 787 | dopoptosub(startingblock) |
| 788 | I32 startingblock; |
| 789 | { |
| 790 | I32 i; |
| 791 | register CONTEXT *cx; |
| 792 | for (i = startingblock; i >= 0; i--) { |
| 793 | cx = &cxstack[i]; |
| 794 | switch (cx->cx_type) { |
| 795 | default: |
| 796 | continue; |
| 797 | case CXt_EVAL: |
| 798 | case CXt_SUB: |
| 799 | DEBUG_l( deb("(Found sub #%d)\n", i)); |
| 800 | return i; |
| 801 | } |
| 802 | } |
| 803 | return i; |
| 804 | } |
| 805 | |
| 806 | static I32 |
| 807 | dopoptoeval(startingblock) |
| 808 | I32 startingblock; |
| 809 | { |
| 810 | I32 i; |
| 811 | register CONTEXT *cx; |
| 812 | for (i = startingblock; i >= 0; i--) { |
| 813 | cx = &cxstack[i]; |
| 814 | switch (cx->cx_type) { |
| 815 | default: |
| 816 | continue; |
| 817 | case CXt_EVAL: |
| 818 | DEBUG_l( deb("(Found eval #%d)\n", i)); |
| 819 | return i; |
| 820 | } |
| 821 | } |
| 822 | return i; |
| 823 | } |
| 824 | |
| 825 | static I32 |
| 826 | dopoptoloop(startingblock) |
| 827 | I32 startingblock; |
| 828 | { |
| 829 | I32 i; |
| 830 | register CONTEXT *cx; |
| 831 | for (i = startingblock; i >= 0; i--) { |
| 832 | cx = &cxstack[i]; |
| 833 | switch (cx->cx_type) { |
| 834 | case CXt_SUBST: |
| 835 | if (dowarn) |
| 836 | warn("Exiting substitition via %s", op_name[op->op_type]); |
| 837 | break; |
| 838 | case CXt_SUB: |
| 839 | if (dowarn) |
| 840 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
| 841 | break; |
| 842 | case CXt_EVAL: |
| 843 | if (dowarn) |
| 844 | warn("Exiting eval via %s", op_name[op->op_type]); |
| 845 | break; |
| 846 | case CXt_LOOP: |
| 847 | DEBUG_l( deb("(Found loop #%d)\n", i)); |
| 848 | return i; |
| 849 | } |
| 850 | } |
| 851 | return i; |
| 852 | } |
| 853 | |
| 854 | void |
| 855 | dounwind(cxix) |
| 856 | I32 cxix; |
| 857 | { |
| 858 | register CONTEXT *cx; |
| 859 | SV **newsp; |
| 860 | I32 optype; |
| 861 | |
| 862 | while (cxstack_ix > cxix) { |
| 863 | cx = &cxstack[cxstack_ix--]; |
| 864 | DEBUG_l(fprintf(stderr, "Unwinding block %ld, type %s\n", (long) cxstack_ix+1, |
| 865 | block_type[cx->cx_type])); |
| 866 | /* Note: we don't need to restore the base context info till the end. */ |
| 867 | switch (cx->cx_type) { |
| 868 | case CXt_SUB: |
| 869 | POPSUB(cx); |
| 870 | break; |
| 871 | case CXt_EVAL: |
| 872 | POPEVAL(cx); |
| 873 | break; |
| 874 | case CXt_LOOP: |
| 875 | POPLOOP(cx); |
| 876 | break; |
| 877 | case CXt_SUBST: |
| 878 | break; |
| 879 | } |
| 880 | } |
| 881 | } |
| 882 | |
| ecfc5424 |
883 | #ifdef I_STDARG |
| a0d0e21e |
884 | OP * |
| 885 | die(char* pat, ...) |
| 886 | #else |
| 887 | /*VARARGS0*/ |
| 888 | OP * |
| 889 | die(pat, va_alist) |
| 890 | char *pat; |
| 891 | va_dcl |
| 892 | #endif |
| 893 | { |
| 894 | va_list args; |
| 895 | char *message; |
| 896 | int oldrunlevel = runlevel; |
| 897 | int was_in_eval = in_eval; |
| 898 | |
| 899 | #ifdef I_STDARG |
| 900 | va_start(args, pat); |
| 901 | #else |
| 902 | va_start(args); |
| 903 | #endif |
| 904 | message = mess(pat, &args); |
| 905 | va_end(args); |
| 906 | restartop = die_where(message); |
| 907 | if ((!restartop && was_in_eval) || oldrunlevel > 1) |
| 908 | longjmp(top_env, 3); |
| 909 | return restartop; |
| 910 | } |
| 911 | |
| 912 | OP * |
| 913 | die_where(message) |
| 914 | char *message; |
| 915 | { |
| 916 | if (in_eval) { |
| 917 | I32 cxix; |
| 918 | register CONTEXT *cx; |
| 919 | I32 gimme; |
| 920 | SV **newsp; |
| 921 | |
| 922 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),message); |
| 923 | cxix = dopoptoeval(cxstack_ix); |
| 924 | if (cxix >= 0) { |
| 925 | I32 optype; |
| 926 | |
| 927 | if (cxix < cxstack_ix) |
| 928 | dounwind(cxix); |
| 929 | |
| 930 | POPBLOCK(cx,curpm); |
| 931 | if (cx->cx_type != CXt_EVAL) { |
| 932 | fprintf(stderr, "panic: die %s", message); |
| 933 | my_exit(1); |
| 934 | } |
| 935 | POPEVAL(cx); |
| 936 | |
| 937 | if (gimme == G_SCALAR) |
| 938 | *++newsp = &sv_undef; |
| 939 | stack_sp = newsp; |
| 940 | |
| 941 | LEAVE; |
| 942 | if (optype == OP_REQUIRE) |
| 943 | DIE("%s", SvPVx(GvSV(gv_fetchpv("@",TRUE, SVt_PV)), na)); |
| 944 | return pop_return(); |
| 945 | } |
| 946 | } |
| 947 | fputs(message, stderr); |
| 948 | (void)fflush(stderr); |
| 949 | if (e_fp) |
| 950 | (void)UNLINK(e_tmpname); |
| 951 | statusvalue >>= 8; |
| 952 | my_exit((I32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); |
| 953 | return 0; |
| 954 | } |
| 955 | |
| 956 | PP(pp_xor) |
| 957 | { |
| 958 | dSP; dPOPTOPssrl; |
| 959 | if (SvTRUE(left) != SvTRUE(right)) |
| 960 | RETSETYES; |
| 961 | else |
| 962 | RETSETNO; |
| 963 | } |
| 964 | |
| 965 | PP(pp_andassign) |
| 966 | { |
| 967 | dSP; |
| 968 | if (!SvTRUE(TOPs)) |
| 969 | RETURN; |
| 970 | else |
| 971 | RETURNOP(cLOGOP->op_other); |
| 972 | } |
| 973 | |
| 974 | PP(pp_orassign) |
| 975 | { |
| 976 | dSP; |
| 977 | if (SvTRUE(TOPs)) |
| 978 | RETURN; |
| 979 | else |
| 980 | RETURNOP(cLOGOP->op_other); |
| 981 | } |
| 982 | |
| 983 | #ifdef DEPRECATED |
| 984 | PP(pp_entersubr) |
| 985 | { |
| 986 | dSP; |
| 987 | SV** mark = (stack_base + *markstack_ptr + 1); |
| 988 | SV* cv = *mark; |
| 989 | while (mark < sp) { /* emulate old interface */ |
| 990 | *mark = mark[1]; |
| 991 | mark++; |
| 992 | } |
| 993 | *sp = cv; |
| 994 | return pp_entersub(); |
| 995 | } |
| 996 | #endif |
| 997 | |
| 998 | PP(pp_caller) |
| 999 | { |
| 1000 | dSP; |
| 1001 | register I32 cxix = dopoptosub(cxstack_ix); |
| 1002 | register CONTEXT *cx; |
| 1003 | I32 dbcxix; |
| 1004 | SV *sv; |
| 1005 | I32 count = 0; |
| 1006 | |
| 1007 | if (MAXARG) |
| 1008 | count = POPi; |
| 1009 | EXTEND(SP, 6); |
| 1010 | for (;;) { |
| 1011 | if (cxix < 0) { |
| 1012 | if (GIMME != G_ARRAY) |
| 1013 | RETPUSHUNDEF; |
| 1014 | RETURN; |
| 1015 | } |
| 1016 | if (DBsub && cxix >= 0 && |
| 1017 | cxstack[cxix].blk_sub.cv == GvCV(DBsub)) |
| 1018 | count++; |
| 1019 | if (!count--) |
| 1020 | break; |
| 1021 | cxix = dopoptosub(cxix - 1); |
| 1022 | } |
| 1023 | cx = &cxstack[cxix]; |
| 1024 | if (GIMME != G_ARRAY) { |
| 1025 | dTARGET; |
| 1026 | |
| 1027 | sv_setpv(TARG, HvNAME(cx->blk_oldcop->cop_stash)); |
| 1028 | PUSHs(TARG); |
| 1029 | RETURN; |
| 1030 | } |
| 1031 | dbcxix = dopoptosub(cxix - 1); |
| 1032 | if (DBsub && dbcxix >= 0 && cxstack[dbcxix].blk_sub.cv == GvCV(DBsub)) |
| 1033 | cx = &cxstack[dbcxix]; |
| 1034 | |
| 1035 | PUSHs(sv_2mortal(newSVpv(HvNAME(cx->blk_oldcop->cop_stash), 0))); |
| 1036 | PUSHs(sv_2mortal(newSVpv(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)), 0))); |
| 1037 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line))); |
| 1038 | if (!MAXARG) |
| 1039 | RETURN; |
| 1040 | if (cx->cx_type == CXt_SUB) { |
| 1041 | sv = NEWSV(49, 0); |
| 1042 | gv_efullname(sv, CvGV(cxstack[cxix].blk_sub.cv)); |
| 1043 | PUSHs(sv_2mortal(sv)); |
| 1044 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
| 1045 | } |
| 1046 | else { |
| 1047 | PUSHs(sv_2mortal(newSVpv("(eval)",0))); |
| 1048 | PUSHs(sv_2mortal(newSViv(0))); |
| 1049 | } |
| 1050 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_gimme))); |
| 1051 | if (cx->blk_sub.hasargs && curcop->cop_stash == debstash) { |
| 1052 | AV *ary = cx->blk_sub.argarray; |
| 1053 | int off = AvARRAY(ary) - AvALLOC(ary); |
| 1054 | |
| 1055 | if (!dbargs) { |
| 1056 | GV* tmpgv; |
| 1057 | dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE, |
| 1058 | SVt_PVAV))); |
| 1059 | SvMULTI_on(tmpgv); |
| 1060 | AvREAL_off(dbargs); /* XXX Should be REIFY */ |
| 1061 | } |
| 1062 | |
| 1063 | if (AvMAX(dbargs) < AvFILL(ary) + off) |
| 1064 | av_extend(dbargs, AvFILL(ary) + off); |
| 1065 | Copy(AvALLOC(ary), AvARRAY(dbargs), AvFILL(ary) + 1 + off, SV*); |
| 1066 | AvFILL(dbargs) = AvFILL(ary) + off; |
| 1067 | } |
| 1068 | RETURN; |
| 1069 | } |
| 1070 | |
| 1071 | static int |
| 1072 | sortcv(a, b) |
| 1073 | const void *a; |
| 1074 | const void *b; |
| 1075 | { |
| 1076 | SV **str1 = (SV **) a; |
| 1077 | SV **str2 = (SV **) b; |
| 1078 | I32 oldscopeix = scopestack_ix; |
| 1079 | I32 result; |
| 1080 | GvSV(firstgv) = *str1; |
| 1081 | GvSV(secondgv) = *str2; |
| 1082 | stack_sp = stack_base; |
| 1083 | op = sortcop; |
| 1084 | run(); |
| 1085 | if (stack_sp != stack_base + 1) |
| 1086 | croak("Sort subroutine didn't return single value"); |
| 1087 | if (!SvNIOK(*stack_sp)) |
| 1088 | croak("Sort subroutine didn't return a numeric value"); |
| 1089 | result = SvIV(*stack_sp); |
| 1090 | while (scopestack_ix > oldscopeix) { |
| 1091 | LEAVE; |
| 1092 | } |
| 1093 | return result; |
| 1094 | } |
| 1095 | |
| 1096 | static int |
| 1097 | sortcmp(a, b) |
| 1098 | const void *a; |
| 1099 | const void *b; |
| 1100 | { |
| 1101 | register SV *str1 = *(SV **) a; |
| 1102 | register SV *str2 = *(SV **) b; |
| 1103 | I32 retval; |
| 1104 | |
| 1105 | if (SvCUR(str1) < SvCUR(str2)) { |
| 1106 | /*SUPPRESS 560*/ |
| 1107 | if (retval = memcmp(SvPVX(str1), SvPVX(str2), SvCUR(str1))) |
| 1108 | return retval; |
| 1109 | else |
| 1110 | return -1; |
| 1111 | } |
| 1112 | /*SUPPRESS 560*/ |
| 1113 | else if (retval = memcmp(SvPVX(str1), SvPVX(str2), SvCUR(str2))) |
| 1114 | return retval; |
| 1115 | else if (SvCUR(str1) == SvCUR(str2)) |
| 1116 | return 0; |
| 1117 | else |
| 1118 | return 1; |
| 1119 | } |
| 1120 | |
| 1121 | PP(pp_reset) |
| 1122 | { |
| 1123 | dSP; |
| 1124 | char *tmps; |
| 1125 | |
| 1126 | if (MAXARG < 1) |
| 1127 | tmps = ""; |
| 1128 | else |
| 1129 | tmps = POPp; |
| 1130 | sv_reset(tmps, curcop->cop_stash); |
| 1131 | PUSHs(&sv_yes); |
| 1132 | RETURN; |
| 1133 | } |
| 1134 | |
| 1135 | PP(pp_lineseq) |
| 1136 | { |
| 1137 | return NORMAL; |
| 1138 | } |
| 1139 | |
| 1140 | PP(pp_dbstate) |
| 1141 | { |
| 1142 | curcop = (COP*)op; |
| 1143 | TAINT_NOT; /* Each statement is presumed innocent */ |
| 1144 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
| 1145 | FREETMPS; |
| 1146 | |
| 1147 | if (op->op_private || SvIV(DBsingle) || SvIV(DBsignal) || SvIV(DBtrace)) |
| 1148 | { |
| 1149 | SV **sp; |
| 1150 | register CV *cv; |
| 1151 | register CONTEXT *cx; |
| 1152 | I32 gimme = GIMME; |
| 1153 | I32 hasargs; |
| 1154 | GV *gv; |
| 1155 | |
| 1156 | ENTER; |
| 1157 | SAVETMPS; |
| 1158 | |
| 1159 | SAVEI32(debug); |
| 1160 | debug = 0; |
| 1161 | hasargs = 0; |
| 1162 | gv = DBgv; |
| 1163 | cv = GvCV(gv); |
| 1164 | sp = stack_sp; |
| 1165 | *++sp = Nullsv; |
| 1166 | |
| 1167 | if (!cv) |
| 1168 | DIE("No DB::DB routine defined"); |
| 1169 | |
| 1170 | if (CvDEPTH(cv) >= 1) /* don't do recursive DB::DB call */ |
| 1171 | return NORMAL; |
| 1172 | push_return(op->op_next); |
| 1173 | PUSHBLOCK(cx, CXt_SUB, sp - 1); |
| 1174 | PUSHSUB(cx); |
| 1175 | CvDEPTH(cv)++; |
| 1176 | (void)SvREFCNT_inc(cv); |
| 1177 | SAVESPTR(curpad); |
| 1178 | curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE)); |
| 1179 | RETURNOP(CvSTART(cv)); |
| 1180 | } |
| 1181 | else |
| 1182 | return NORMAL; |
| 1183 | } |
| 1184 | |
| 1185 | PP(pp_scope) |
| 1186 | { |
| 1187 | return NORMAL; |
| 1188 | } |
| 1189 | |
| 1190 | PP(pp_enteriter) |
| 1191 | { |
| 1192 | dSP; dMARK; |
| 1193 | register CONTEXT *cx; |
| 1194 | I32 gimme = GIMME; |
| 1195 | SV **svp; |
| 1196 | |
| 1197 | if (op->op_targ) |
| 1198 | svp = &curpad[op->op_targ]; /* "my" variable */ |
| 1199 | else |
| 1200 | svp = &GvSV((GV*)POPs); /* symbol table variable */ |
| 1201 | |
| 1202 | ENTER; |
| 1203 | SAVETMPS; |
| 1204 | ENTER; |
| 1205 | |
| 1206 | PUSHBLOCK(cx, CXt_LOOP, SP); |
| 1207 | PUSHLOOP(cx, svp, MARK); |
| 1208 | cx->blk_loop.iterary = stack; |
| 1209 | cx->blk_loop.iterix = MARK - stack_base; |
| 1210 | |
| 1211 | RETURN; |
| 1212 | } |
| 1213 | |
| 1214 | PP(pp_enterloop) |
| 1215 | { |
| 1216 | dSP; |
| 1217 | register CONTEXT *cx; |
| 1218 | I32 gimme = GIMME; |
| 1219 | |
| 1220 | ENTER; |
| 1221 | SAVETMPS; |
| 1222 | ENTER; |
| 1223 | |
| 1224 | PUSHBLOCK(cx, CXt_LOOP, SP); |
| 1225 | PUSHLOOP(cx, 0, SP); |
| 1226 | |
| 1227 | RETURN; |
| 1228 | } |
| 1229 | |
| 1230 | PP(pp_leaveloop) |
| 1231 | { |
| 1232 | dSP; |
| 1233 | register CONTEXT *cx; |
| 1234 | I32 gimme; |
| 1235 | SV **newsp; |
| 1236 | PMOP *newpm; |
| 1237 | SV **mark; |
| 1238 | |
| 1239 | POPBLOCK(cx,newpm); |
| 1240 | mark = newsp; |
| 1241 | POPLOOP(cx); |
| 1242 | if (gimme == G_SCALAR) { |
| 1243 | if (op->op_private & OPpLEAVE_VOID) |
| 1244 | ; |
| 1245 | else { |
| 1246 | if (mark < SP) |
| 1247 | *++newsp = sv_mortalcopy(*SP); |
| 1248 | else |
| 1249 | *++newsp = &sv_undef; |
| 1250 | } |
| 1251 | } |
| 1252 | else { |
| 1253 | while (mark < SP) |
| 1254 | *++newsp = sv_mortalcopy(*++mark); |
| 1255 | } |
| 1256 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 1257 | sp = newsp; |
| 1258 | LEAVE; |
| 1259 | LEAVE; |
| 1260 | |
| 1261 | RETURN; |
| 1262 | } |
| 1263 | |
| 1264 | PP(pp_return) |
| 1265 | { |
| 1266 | dSP; dMARK; |
| 1267 | I32 cxix; |
| 1268 | register CONTEXT *cx; |
| 1269 | I32 gimme; |
| 1270 | SV **newsp; |
| 1271 | PMOP *newpm; |
| 1272 | I32 optype = 0; |
| 1273 | |
| 1274 | if (stack == sortstack) { |
| 1275 | if (cxstack_ix == sortcxix || dopoptosub(cxstack_ix) < sortcxix) { |
| 1276 | AvARRAY(stack)[1] = *SP; |
| 1277 | stack_sp = stack_base + 1; |
| 1278 | return 0; |
| 1279 | } |
| 1280 | } |
| 1281 | |
| 1282 | cxix = dopoptosub(cxstack_ix); |
| 1283 | if (cxix < 0) |
| 1284 | DIE("Can't return outside a subroutine"); |
| 1285 | if (cxix < cxstack_ix) |
| 1286 | dounwind(cxix); |
| 1287 | |
| 1288 | POPBLOCK(cx,newpm); |
| 1289 | switch (cx->cx_type) { |
| 1290 | case CXt_SUB: |
| 1291 | POPSUB(cx); |
| 1292 | break; |
| 1293 | case CXt_EVAL: |
| 1294 | POPEVAL(cx); |
| 1295 | break; |
| 1296 | default: |
| 1297 | DIE("panic: return"); |
| 1298 | break; |
| 1299 | } |
| 1300 | |
| 1301 | if (gimme == G_SCALAR) { |
| 1302 | if (MARK < SP) |
| 1303 | *++newsp = sv_mortalcopy(*SP); |
| 1304 | else |
| 1305 | *++newsp = &sv_undef; |
| 1306 | if (optype == OP_REQUIRE && !SvTRUE(*newsp)) |
| 1307 | DIE("%s", SvPVx(GvSV(gv_fetchpv("@",TRUE, SVt_PV)), na)); |
| 1308 | } |
| 1309 | else { |
| 1310 | if (optype == OP_REQUIRE && MARK == SP) |
| 1311 | DIE("%s", SvPVx(GvSV(gv_fetchpv("@",TRUE, SVt_PV)), na)); |
| 1312 | while (MARK < SP) |
| 1313 | *++newsp = sv_mortalcopy(*++MARK); |
| 1314 | } |
| 1315 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 1316 | stack_sp = newsp; |
| 1317 | |
| 1318 | LEAVE; |
| 1319 | return pop_return(); |
| 1320 | } |
| 1321 | |
| 1322 | PP(pp_last) |
| 1323 | { |
| 1324 | dSP; |
| 1325 | I32 cxix; |
| 1326 | register CONTEXT *cx; |
| 1327 | I32 gimme; |
| 1328 | I32 optype; |
| 1329 | OP *nextop; |
| 1330 | SV **newsp; |
| 1331 | PMOP *newpm; |
| 1332 | SV **mark = stack_base + cxstack[cxstack_ix].blk_oldsp; |
| 1333 | /* XXX The sp is probably not right yet... */ |
| 1334 | |
| 1335 | if (op->op_flags & OPf_SPECIAL) { |
| 1336 | cxix = dopoptoloop(cxstack_ix); |
| 1337 | if (cxix < 0) |
| 1338 | DIE("Can't \"last\" outside a block"); |
| 1339 | } |
| 1340 | else { |
| 1341 | cxix = dopoptolabel(cPVOP->op_pv); |
| 1342 | if (cxix < 0) |
| 1343 | DIE("Label not found for \"last %s\"", cPVOP->op_pv); |
| 1344 | } |
| 1345 | if (cxix < cxstack_ix) |
| 1346 | dounwind(cxix); |
| 1347 | |
| 1348 | POPBLOCK(cx,newpm); |
| 1349 | switch (cx->cx_type) { |
| 1350 | case CXt_LOOP: |
| 1351 | POPLOOP(cx); |
| 1352 | nextop = cx->blk_loop.last_op->op_next; |
| 1353 | LEAVE; |
| 1354 | break; |
| 1355 | case CXt_EVAL: |
| 1356 | POPEVAL(cx); |
| 1357 | nextop = pop_return(); |
| 1358 | break; |
| 1359 | case CXt_SUB: |
| 1360 | POPSUB(cx); |
| 1361 | nextop = pop_return(); |
| 1362 | break; |
| 1363 | default: |
| 1364 | DIE("panic: last"); |
| 1365 | break; |
| 1366 | } |
| 1367 | |
| 1368 | if (gimme == G_SCALAR) { |
| 1369 | if (mark < SP) |
| 1370 | *++newsp = sv_mortalcopy(*SP); |
| 1371 | else |
| 1372 | *++newsp = &sv_undef; |
| 1373 | } |
| 1374 | else { |
| 1375 | while (mark < SP) |
| 1376 | *++newsp = sv_mortalcopy(*++mark); |
| 1377 | } |
| 1378 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 1379 | sp = newsp; |
| 1380 | |
| 1381 | LEAVE; |
| 1382 | RETURNOP(nextop); |
| 1383 | } |
| 1384 | |
| 1385 | PP(pp_next) |
| 1386 | { |
| 1387 | I32 cxix; |
| 1388 | register CONTEXT *cx; |
| 1389 | I32 oldsave; |
| 1390 | |
| 1391 | if (op->op_flags & OPf_SPECIAL) { |
| 1392 | cxix = dopoptoloop(cxstack_ix); |
| 1393 | if (cxix < 0) |
| 1394 | DIE("Can't \"next\" outside a block"); |
| 1395 | } |
| 1396 | else { |
| 1397 | cxix = dopoptolabel(cPVOP->op_pv); |
| 1398 | if (cxix < 0) |
| 1399 | DIE("Label not found for \"next %s\"", cPVOP->op_pv); |
| 1400 | } |
| 1401 | if (cxix < cxstack_ix) |
| 1402 | dounwind(cxix); |
| 1403 | |
| 1404 | TOPBLOCK(cx); |
| 1405 | oldsave = scopestack[scopestack_ix - 1]; |
| 1406 | LEAVE_SCOPE(oldsave); |
| 1407 | return cx->blk_loop.next_op; |
| 1408 | } |
| 1409 | |
| 1410 | PP(pp_redo) |
| 1411 | { |
| 1412 | I32 cxix; |
| 1413 | register CONTEXT *cx; |
| 1414 | I32 oldsave; |
| 1415 | |
| 1416 | if (op->op_flags & OPf_SPECIAL) { |
| 1417 | cxix = dopoptoloop(cxstack_ix); |
| 1418 | if (cxix < 0) |
| 1419 | DIE("Can't \"redo\" outside a block"); |
| 1420 | } |
| 1421 | else { |
| 1422 | cxix = dopoptolabel(cPVOP->op_pv); |
| 1423 | if (cxix < 0) |
| 1424 | DIE("Label not found for \"redo %s\"", cPVOP->op_pv); |
| 1425 | } |
| 1426 | if (cxix < cxstack_ix) |
| 1427 | dounwind(cxix); |
| 1428 | |
| 1429 | TOPBLOCK(cx); |
| 1430 | oldsave = scopestack[scopestack_ix - 1]; |
| 1431 | LEAVE_SCOPE(oldsave); |
| 1432 | return cx->blk_loop.redo_op; |
| 1433 | } |
| 1434 | |
| 1435 | static OP* lastgotoprobe; |
| 1436 | |
| 1437 | static OP * |
| 1438 | dofindlabel(op,label,opstack) |
| 1439 | OP *op; |
| 1440 | char *label; |
| 1441 | OP **opstack; |
| 1442 | { |
| 1443 | OP *kid; |
| 1444 | OP **ops = opstack; |
| 1445 | |
| 1446 | if (op->op_type == OP_LEAVE || |
| 1447 | op->op_type == OP_SCOPE || |
| 1448 | op->op_type == OP_LEAVELOOP || |
| 1449 | op->op_type == OP_LEAVETRY) |
| 1450 | *ops++ = cUNOP->op_first; |
| 1451 | *ops = 0; |
| 1452 | if (op->op_flags & OPf_KIDS) { |
| 1453 | /* First try all the kids at this level, since that's likeliest. */ |
| 1454 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
| 1455 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
| 1456 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) |
| 1457 | return kid; |
| 1458 | } |
| 1459 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
| 1460 | if (kid == lastgotoprobe) |
| 1461 | continue; |
| 1462 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
| 1463 | if (ops > opstack && |
| 1464 | (ops[-1]->op_type == OP_NEXTSTATE || |
| 1465 | ops[-1]->op_type == OP_DBSTATE)) |
| 1466 | *ops = kid; |
| 1467 | else |
| 1468 | *ops++ = kid; |
| 1469 | } |
| 1470 | if (op = dofindlabel(kid,label,ops)) |
| 1471 | return op; |
| 1472 | } |
| 1473 | } |
| 1474 | *ops = 0; |
| 1475 | return 0; |
| 1476 | } |
| 1477 | |
| 1478 | PP(pp_dump) |
| 1479 | { |
| 1480 | return pp_goto(ARGS); |
| 1481 | /*NOTREACHED*/ |
| 1482 | } |
| 1483 | |
| 1484 | PP(pp_goto) |
| 1485 | { |
| 1486 | dSP; |
| 1487 | OP *retop = 0; |
| 1488 | I32 ix; |
| 1489 | register CONTEXT *cx; |
| 1490 | OP *enterops[64]; |
| 1491 | char *label; |
| 1492 | int do_dump = (op->op_type == OP_DUMP); |
| 1493 | |
| 1494 | label = 0; |
| 1495 | if (op->op_flags & OPf_STACKED) { |
| 1496 | SV *sv = POPs; |
| 1497 | |
| 1498 | /* This egregious kludge implements goto &subroutine */ |
| 1499 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { |
| 1500 | I32 cxix; |
| 1501 | register CONTEXT *cx; |
| 1502 | CV* cv = (CV*)SvRV(sv); |
| 1503 | SV** mark; |
| 1504 | I32 items = 0; |
| 1505 | I32 oldsave; |
| 1506 | |
| 1507 | /* First do some returnish stuff. */ |
| 1508 | cxix = dopoptosub(cxstack_ix); |
| 1509 | if (cxix < 0) |
| 1510 | DIE("Can't goto subroutine outside a subroutine"); |
| 1511 | if (cxix < cxstack_ix) |
| 1512 | dounwind(cxix); |
| 1513 | TOPBLOCK(cx); |
| 1514 | mark = stack_sp; |
| 1515 | if (cx->blk_sub.hasargs) { /* put @_ back onto stack */ |
| 1516 | AV* av = cx->blk_sub.argarray; |
| 1517 | |
| 1518 | items = AvFILL(av) + 1; |
| 1519 | Copy(AvARRAY(av), ++stack_sp, items, SV*); |
| 1520 | stack_sp += items; |
| 1521 | GvAV(defgv) = cx->blk_sub.savearray; |
| 1522 | av_clear(av); |
| 1523 | AvREAL_off(av); |
| 1524 | } |
| 1525 | if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
| 1526 | SvREFCNT_dec(cx->blk_sub.cv); |
| 1527 | oldsave = scopestack[scopestack_ix - 1]; |
| 1528 | LEAVE_SCOPE(oldsave); |
| 1529 | |
| 1530 | /* Now do some callish stuff. */ |
| 1531 | SAVETMPS; |
| 1532 | if (CvXSUB(cv)) { |
| 1533 | if (CvOLDSTYLE(cv)) { |
| ecfc5424 |
1534 | I32 (*fp3)_((int,int,int)); |
| a0d0e21e |
1535 | while (sp > mark) { |
| 1536 | sp[1] = sp[0]; |
| 1537 | sp--; |
| 1538 | } |
| ecfc5424 |
1539 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
| 1540 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
| 1541 | mark - stack_base + 1, |
| 1542 | items); |
| a0d0e21e |
1543 | sp = stack_base + items; |
| 1544 | } |
| 1545 | else { |
| 1546 | (void)(*CvXSUB(cv))(cv); |
| 1547 | } |
| 1548 | LEAVE; |
| 1549 | return pop_return(); |
| 1550 | } |
| 1551 | else { |
| 1552 | AV* padlist = CvPADLIST(cv); |
| 1553 | SV** svp = AvARRAY(padlist); |
| 1554 | cx->blk_sub.cv = cv; |
| 1555 | cx->blk_sub.olddepth = CvDEPTH(cv); |
| 1556 | CvDEPTH(cv)++; |
| 1557 | if (CvDEPTH(cv) < 2) |
| 1558 | (void)SvREFCNT_inc(cv); |
| 1559 | else { /* save temporaries on recursion? */ |
| 1560 | if (CvDEPTH(cv) == 100 && dowarn) |
| 1561 | warn("Deep recursion on subroutine \"%s\"", |
| 1562 | GvENAME(CvGV(cv))); |
| 1563 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
| 1564 | AV *newpad = newAV(); |
| 1565 | I32 ix = AvFILL((AV*)svp[1]); |
| 1566 | svp = AvARRAY(svp[0]); |
| 1567 | while (ix > 0) { |
| 1568 | if (svp[ix] != &sv_undef) { |
| 1569 | char *name = SvPVX(svp[ix]); /* XXX */ |
| 1570 | if (*name == '@') |
| 1571 | av_store(newpad, ix--, sv = (SV*)newAV()); |
| 1572 | else if (*name == '%') |
| 1573 | av_store(newpad, ix--, sv = (SV*)newHV()); |
| 1574 | else |
| 1575 | av_store(newpad, ix--, sv = NEWSV(0,0)); |
| 1576 | SvPADMY_on(sv); |
| 1577 | } |
| 1578 | else { |
| 1579 | av_store(newpad, ix--, sv = NEWSV(0,0)); |
| 1580 | SvPADTMP_on(sv); |
| 1581 | } |
| 1582 | } |
| 1583 | if (cx->blk_sub.hasargs) { |
| 1584 | AV* av = newAV(); |
| 1585 | av_extend(av, 0); |
| 1586 | av_store(newpad, 0, (SV*)av); |
| 1587 | AvFLAGS(av) = AVf_REIFY; |
| 1588 | } |
| 1589 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
| 1590 | AvFILL(padlist) = CvDEPTH(cv); |
| 1591 | svp = AvARRAY(padlist); |
| 1592 | } |
| 1593 | } |
| 1594 | SAVESPTR(curpad); |
| 1595 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
| 1596 | if (cx->blk_sub.hasargs) { |
| 1597 | AV* av = (AV*)curpad[0]; |
| 1598 | SV** ary; |
| 1599 | |
| 1600 | cx->blk_sub.savearray = GvAV(defgv); |
| 1601 | cx->blk_sub.argarray = av; |
| 1602 | GvAV(defgv) = cx->blk_sub.argarray; |
| 1603 | ++mark; |
| 1604 | |
| 1605 | if (items >= AvMAX(av) + 1) { |
| 1606 | ary = AvALLOC(av); |
| 1607 | if (AvARRAY(av) != ary) { |
| 1608 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
| 1609 | SvPVX(av) = (char*)ary; |
| 1610 | } |
| 1611 | if (items >= AvMAX(av) + 1) { |
| 1612 | AvMAX(av) = items - 1; |
| 1613 | Renew(ary,items+1,SV*); |
| 1614 | AvALLOC(av) = ary; |
| 1615 | SvPVX(av) = (char*)ary; |
| 1616 | } |
| 1617 | } |
| 1618 | Copy(mark,AvARRAY(av),items,SV*); |
| 1619 | AvFILL(av) = items - 1; |
| 1620 | |
| 1621 | while (items--) { |
| 1622 | if (*mark) |
| 1623 | SvTEMP_off(*mark); |
| 1624 | mark++; |
| 1625 | } |
| 1626 | } |
| 1627 | RETURNOP(CvSTART(cv)); |
| 1628 | } |
| 1629 | } |
| 1630 | else |
| 1631 | label = SvPV(sv,na); |
| 1632 | } |
| 1633 | else if (op->op_flags & OPf_SPECIAL) { |
| 1634 | if (! do_dump) |
| 1635 | DIE("goto must have label"); |
| 1636 | } |
| 1637 | else |
| 1638 | label = cPVOP->op_pv; |
| 1639 | |
| 1640 | if (label && *label) { |
| 1641 | OP *gotoprobe = 0; |
| 1642 | |
| 1643 | /* find label */ |
| 1644 | |
| 1645 | lastgotoprobe = 0; |
| 1646 | *enterops = 0; |
| 1647 | for (ix = cxstack_ix; ix >= 0; ix--) { |
| 1648 | cx = &cxstack[ix]; |
| 1649 | switch (cx->cx_type) { |
| 1650 | case CXt_SUB: |
| 1651 | gotoprobe = CvROOT(cx->blk_sub.cv); |
| 1652 | break; |
| 1653 | case CXt_EVAL: |
| 1654 | gotoprobe = eval_root; /* XXX not good for nested eval */ |
| 1655 | break; |
| 1656 | case CXt_LOOP: |
| 1657 | gotoprobe = cx->blk_oldcop->op_sibling; |
| 1658 | break; |
| 1659 | case CXt_SUBST: |
| 1660 | continue; |
| 1661 | case CXt_BLOCK: |
| 1662 | if (ix) |
| 1663 | gotoprobe = cx->blk_oldcop->op_sibling; |
| 1664 | else |
| 1665 | gotoprobe = main_root; |
| 1666 | break; |
| 1667 | default: |
| 1668 | if (ix) |
| 1669 | DIE("panic: goto"); |
| 1670 | else |
| 1671 | gotoprobe = main_root; |
| 1672 | break; |
| 1673 | } |
| 1674 | retop = dofindlabel(gotoprobe, label, enterops); |
| 1675 | if (retop) |
| 1676 | break; |
| 1677 | lastgotoprobe = gotoprobe; |
| 1678 | } |
| 1679 | if (!retop) |
| 1680 | DIE("Can't find label %s", label); |
| 1681 | |
| 1682 | /* pop unwanted frames */ |
| 1683 | |
| 1684 | if (ix < cxstack_ix) { |
| 1685 | I32 oldsave; |
| 1686 | |
| 1687 | if (ix < 0) |
| 1688 | ix = 0; |
| 1689 | dounwind(ix); |
| 1690 | TOPBLOCK(cx); |
| 1691 | oldsave = scopestack[scopestack_ix]; |
| 1692 | LEAVE_SCOPE(oldsave); |
| 1693 | } |
| 1694 | |
| 1695 | /* push wanted frames */ |
| 1696 | |
| 1697 | if (*enterops) { |
| 1698 | OP *oldop = op; |
| 1699 | for (ix = 0 + (gotoprobe == main_root); enterops[ix]; ix++) { |
| 1700 | op = enterops[ix]; |
| 1701 | (*op->op_ppaddr)(); |
| 1702 | } |
| 1703 | op = oldop; |
| 1704 | } |
| 1705 | } |
| 1706 | |
| 1707 | if (do_dump) { |
| 1708 | restartop = retop; |
| 1709 | do_undump = TRUE; |
| 1710 | |
| 1711 | my_unexec(); |
| 1712 | |
| 1713 | restartop = 0; /* hmm, must be GNU unexec().. */ |
| 1714 | do_undump = FALSE; |
| 1715 | } |
| 1716 | |
| 1717 | RETURNOP(retop); |
| 1718 | } |
| 1719 | |
| 1720 | PP(pp_exit) |
| 1721 | { |
| 1722 | dSP; |
| 1723 | I32 anum; |
| 1724 | |
| 1725 | if (MAXARG < 1) |
| 1726 | anum = 0; |
| 1727 | else |
| 1728 | anum = SvIVx(POPs); |
| 1729 | my_exit(anum); |
| 1730 | PUSHs(&sv_undef); |
| 1731 | RETURN; |
| 1732 | } |
| 1733 | |
| 1734 | #ifdef NOTYET |
| 1735 | PP(pp_nswitch) |
| 1736 | { |
| 1737 | dSP; |
| 1738 | double value = SvNVx(GvSV(cCOP->cop_gv)); |
| 1739 | register I32 match = I_32(value); |
| 1740 | |
| 1741 | if (value < 0.0) { |
| 1742 | if (((double)match) > value) |
| 1743 | --match; /* was fractional--truncate other way */ |
| 1744 | } |
| 1745 | match -= cCOP->uop.scop.scop_offset; |
| 1746 | if (match < 0) |
| 1747 | match = 0; |
| 1748 | else if (match > cCOP->uop.scop.scop_max) |
| 1749 | match = cCOP->uop.scop.scop_max; |
| 1750 | op = cCOP->uop.scop.scop_next[match]; |
| 1751 | RETURNOP(op); |
| 1752 | } |
| 1753 | |
| 1754 | PP(pp_cswitch) |
| 1755 | { |
| 1756 | dSP; |
| 1757 | register I32 match; |
| 1758 | |
| 1759 | if (multiline) |
| 1760 | op = op->op_next; /* can't assume anything */ |
| 1761 | else { |
| 1762 | match = *(SvPVx(GvSV(cCOP->cop_gv), na)) & 255; |
| 1763 | match -= cCOP->uop.scop.scop_offset; |
| 1764 | if (match < 0) |
| 1765 | match = 0; |
| 1766 | else if (match > cCOP->uop.scop.scop_max) |
| 1767 | match = cCOP->uop.scop.scop_max; |
| 1768 | op = cCOP->uop.scop.scop_next[match]; |
| 1769 | } |
| 1770 | RETURNOP(op); |
| 1771 | } |
| 1772 | #endif |
| 1773 | |
| 1774 | /* Eval. */ |
| 1775 | |
| 1776 | static void |
| 1777 | save_lines(array, sv) |
| 1778 | AV *array; |
| 1779 | SV *sv; |
| 1780 | { |
| 1781 | register char *s = SvPVX(sv); |
| 1782 | register char *send = SvPVX(sv) + SvCUR(sv); |
| 1783 | register char *t; |
| 1784 | register I32 line = 1; |
| 1785 | |
| 1786 | while (s && s < send) { |
| 1787 | SV *tmpstr = NEWSV(85,0); |
| 1788 | |
| 1789 | sv_upgrade(tmpstr, SVt_PVMG); |
| 1790 | t = strchr(s, '\n'); |
| 1791 | if (t) |
| 1792 | t++; |
| 1793 | else |
| 1794 | t = send; |
| 1795 | |
| 1796 | sv_setpvn(tmpstr, s, t - s); |
| 1797 | av_store(array, line++, tmpstr); |
| 1798 | s = t; |
| 1799 | } |
| 1800 | } |
| 1801 | |
| 1802 | static OP * |
| 1803 | doeval(gimme) |
| 1804 | int gimme; |
| 1805 | { |
| 1806 | dSP; |
| 1807 | OP *saveop = op; |
| 1808 | HV *newstash; |
| 1809 | |
| 1810 | in_eval = 1; |
| 1811 | |
| 1812 | /* set up a scratch pad */ |
| 1813 | |
| 1814 | SAVEINT(padix); |
| 1815 | SAVESPTR(curpad); |
| 1816 | SAVESPTR(comppad); |
| 1817 | SAVESPTR(comppad_name); |
| 1818 | SAVEINT(comppad_name_fill); |
| 1819 | SAVEINT(min_intro_pending); |
| 1820 | SAVEINT(max_intro_pending); |
| 1821 | comppad = newAV(); |
| 1822 | comppad_name = newAV(); |
| 1823 | comppad_name_fill = 0; |
| 1824 | min_intro_pending = 0; |
| 1825 | av_push(comppad, Nullsv); |
| 1826 | curpad = AvARRAY(comppad); |
| 1827 | padix = 0; |
| 1828 | |
| 1829 | /* make sure we compile in the right package */ |
| 1830 | |
| 1831 | newstash = curcop->cop_stash; |
| 1832 | if (curstash != newstash) { |
| 1833 | SAVESPTR(curstash); |
| 1834 | curstash = newstash; |
| 1835 | } |
| 1836 | SAVESPTR(beginav); |
| 1837 | beginav = newAV(); |
| 1838 | SAVEFREESV(beginav); |
| 1839 | |
| 1840 | /* try to compile it */ |
| 1841 | |
| 1842 | eval_root = Nullop; |
| 1843 | error_count = 0; |
| 1844 | curcop = &compiling; |
| 1845 | curcop->cop_arybase = 0; |
| 1846 | rs = "\n"; |
| 1847 | rslen = 1; |
| 1848 | rschar = '\n'; |
| 1849 | rspara = 0; |
| 1850 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
| 1851 | if (yyparse() || error_count || !eval_root) { |
| 1852 | SV **newsp; |
| 1853 | I32 gimme; |
| 1854 | CONTEXT *cx; |
| 1855 | I32 optype; |
| 1856 | |
| 1857 | op = saveop; |
| 1858 | if (eval_root) { |
| 1859 | op_free(eval_root); |
| 1860 | eval_root = Nullop; |
| 1861 | } |
| 1862 | POPBLOCK(cx,curpm); |
| 1863 | POPEVAL(cx); |
| 1864 | pop_return(); |
| 1865 | lex_end(); |
| 1866 | LEAVE; |
| 1867 | if (optype == OP_REQUIRE) |
| 1868 | DIE("%s", SvPVx(GvSV(gv_fetchpv("@",TRUE, SVt_PV)), na)); |
| 1869 | rs = nrs; |
| 1870 | rslen = nrslen; |
| 1871 | rschar = nrschar; |
| 1872 | rspara = (nrslen == 2); |
| 1873 | RETPUSHUNDEF; |
| 1874 | } |
| 1875 | rs = nrs; |
| 1876 | rslen = nrslen; |
| 1877 | rschar = nrschar; |
| 1878 | rspara = (nrslen == 2); |
| 1879 | compiling.cop_line = 0; |
| 1880 | SAVEFREESV(comppad); |
| 1881 | SAVEFREESV(comppad_name); |
| 1882 | SAVEFREEOP(eval_root); |
| 1883 | if (gimme & G_ARRAY) |
| 1884 | list(eval_root); |
| 1885 | else |
| 1886 | scalar(eval_root); |
| 1887 | |
| 1888 | DEBUG_x(dump_eval()); |
| 1889 | |
| 1890 | /* compiled okay, so do it */ |
| 1891 | |
| 1892 | RETURNOP(eval_start); |
| 1893 | } |
| 1894 | |
| 1895 | PP(pp_require) |
| 1896 | { |
| 1897 | dSP; |
| 1898 | register CONTEXT *cx; |
| 1899 | SV *sv; |
| 1900 | char *name; |
| 1901 | char *tmpname; |
| 1902 | SV** svp; |
| 1903 | I32 gimme = G_SCALAR; |
| 1904 | FILE *tryrsfp = 0; |
| 1905 | |
| 1906 | sv = POPs; |
| 1907 | if (SvNIOK(sv) && !SvPOKp(sv)) { |
| 1908 | if (atof(patchlevel) + 0.000999 < SvNV(sv)) |
| 1909 | DIE("Perl %3.3f required--this is only version %s, stopped", |
| 1910 | SvNV(sv),patchlevel); |
| 1911 | RETPUSHYES; |
| 1912 | } |
| 1913 | name = SvPV(sv, na); |
| 1914 | if (!*name) |
| 1915 | DIE("Null filename used"); |
| 1916 | if (op->op_type == OP_REQUIRE && |
| 1917 | (svp = hv_fetch(GvHVn(incgv), name, SvCUR(sv), 0)) && |
| 1918 | *svp != &sv_undef) |
| 1919 | RETPUSHYES; |
| 1920 | |
| 1921 | /* prepare to compile file */ |
| 1922 | |
| 1923 | tmpname = savepv(name); |
| 1924 | if (*tmpname == '/' || |
| 1925 | (*tmpname == '.' && |
| 1926 | (tmpname[1] == '/' || |
| 1927 | (tmpname[1] == '.' && tmpname[2] == '/')))) |
| 1928 | { |
| 1929 | tryrsfp = fopen(tmpname,"r"); |
| 1930 | } |
| 1931 | else { |
| 1932 | AV *ar = GvAVn(incgv); |
| 1933 | I32 i; |
| 1934 | |
| 1935 | for (i = 0; i <= AvFILL(ar); i++) { |
| 1936 | (void)sprintf(buf, "%s/%s", |
| 1937 | SvPVx(*av_fetch(ar, i, TRUE), na), name); |
| 1938 | tryrsfp = fopen(buf, "r"); |
| 1939 | if (tryrsfp) { |
| 1940 | char *s = buf; |
| 1941 | |
| 1942 | if (*s == '.' && s[1] == '/') |
| 1943 | s += 2; |
| 1944 | Safefree(tmpname); |
| 1945 | tmpname = savepv(s); |
| 1946 | break; |
| 1947 | } |
| 1948 | } |
| 1949 | } |
| 1950 | SAVESPTR(compiling.cop_filegv); |
| 1951 | compiling.cop_filegv = gv_fetchfile(tmpname); |
| 1952 | Safefree(tmpname); |
| 1953 | tmpname = Nullch; |
| 1954 | if (!tryrsfp) { |
| 1955 | if (op->op_type == OP_REQUIRE) { |
| 1956 | sprintf(tokenbuf,"Can't locate %s in @INC", name); |
| 1957 | if (instr(tokenbuf,".h ")) |
| 1958 | strcat(tokenbuf," (change .h to .ph maybe?)"); |
| 1959 | if (instr(tokenbuf,".ph ")) |
| 1960 | strcat(tokenbuf," (did you run h2ph?)"); |
| 1961 | DIE("%s",tokenbuf); |
| 1962 | } |
| 1963 | |
| 1964 | RETPUSHUNDEF; |
| 1965 | } |
| 1966 | |
| 1967 | /* Assume success here to prevent recursive requirement. */ |
| 1968 | (void)hv_store(GvHVn(incgv), name, strlen(name), |
| 1969 | newSVsv(GvSV(compiling.cop_filegv)), 0 ); |
| 1970 | |
| 1971 | ENTER; |
| 1972 | SAVETMPS; |
| 1973 | lex_start(sv_2mortal(newSVpv("",0))); |
| 1974 | rsfp = tryrsfp; |
| 1975 | name = savepv(name); |
| 1976 | SAVEFREEPV(name); |
| 1977 | SAVEI32(hints); |
| 1978 | hints = 0; |
| 1979 | |
| 1980 | /* switch to eval mode */ |
| 1981 | |
| 1982 | push_return(op->op_next); |
| 1983 | PUSHBLOCK(cx, CXt_EVAL, SP); |
| 1984 | PUSHEVAL(cx, name, compiling.cop_filegv); |
| 1985 | |
| 1986 | compiling.cop_line = 0; |
| 1987 | |
| 1988 | PUTBACK; |
| 1989 | return doeval(G_SCALAR); |
| 1990 | } |
| 1991 | |
| 1992 | PP(pp_dofile) |
| 1993 | { |
| 1994 | return pp_require(ARGS); |
| 1995 | } |
| 1996 | |
| 1997 | PP(pp_entereval) |
| 1998 | { |
| 1999 | dSP; |
| 2000 | register CONTEXT *cx; |
| 2001 | dPOPss; |
| 2002 | I32 gimme = GIMME; |
| 2003 | char tmpbuf[32]; |
| 2004 | STRLEN len; |
| 2005 | |
| 2006 | if (!SvPV(sv,len) || !len) |
| 2007 | RETPUSHUNDEF; |
| 2008 | |
| 2009 | ENTER; |
| 2010 | SAVETMPS; |
| 2011 | lex_start(sv); |
| 2012 | |
| 2013 | /* switch to eval mode */ |
| 2014 | |
| 2015 | sprintf(tmpbuf, "_<(eval %d)", ++evalseq); |
| 2016 | compiling.cop_filegv = gv_fetchfile(tmpbuf+2); |
| 2017 | compiling.cop_line = 1; |
| 2018 | SAVEDELETE(defstash, savepv(tmpbuf), strlen(tmpbuf)); |
| 2019 | SAVEI32(hints); |
| 2020 | hints = op->op_targ; |
| 2021 | |
| 2022 | push_return(op->op_next); |
| 2023 | PUSHBLOCK(cx, CXt_EVAL, SP); |
| 2024 | PUSHEVAL(cx, 0, compiling.cop_filegv); |
| 2025 | |
| 2026 | /* prepare to compile string */ |
| 2027 | |
| 2028 | if (perldb && curstash != debstash) |
| 2029 | save_lines(GvAV(compiling.cop_filegv), linestr); |
| 2030 | PUTBACK; |
| 2031 | return doeval(gimme); |
| 2032 | } |
| 2033 | |
| 2034 | PP(pp_leaveeval) |
| 2035 | { |
| 2036 | dSP; |
| 2037 | register SV **mark; |
| 2038 | SV **newsp; |
| 2039 | PMOP *newpm; |
| 2040 | I32 gimme; |
| 2041 | register CONTEXT *cx; |
| 2042 | OP *retop; |
| 2043 | I32 optype; |
| 2044 | |
| 2045 | POPBLOCK(cx,newpm); |
| 2046 | POPEVAL(cx); |
| 2047 | retop = pop_return(); |
| 2048 | |
| 2049 | if (gimme == G_SCALAR) { |
| 2050 | if (op->op_private & OPpLEAVE_VOID) |
| 2051 | MARK = newsp; |
| 2052 | else { |
| 2053 | MARK = newsp + 1; |
| 2054 | if (MARK <= SP) { |
| 2055 | if (SvFLAGS(TOPs) & SVs_TEMP) |
| 2056 | *MARK = TOPs; |
| 2057 | else |
| 2058 | *MARK = sv_mortalcopy(TOPs); |
| 2059 | } |
| 2060 | else { |
| 2061 | MEXTEND(mark,0); |
| 2062 | *MARK = &sv_undef; |
| 2063 | } |
| 2064 | } |
| 2065 | SP = MARK; |
| 2066 | } |
| 2067 | else { |
| 2068 | for (mark = newsp + 1; mark <= SP; mark++) |
| 2069 | if (!(SvFLAGS(TOPs) & SVs_TEMP)) |
| 2070 | *mark = sv_mortalcopy(*mark); |
| 2071 | /* in case LEAVE wipes old return values */ |
| 2072 | } |
| 2073 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 2074 | |
| 2075 | if (optype != OP_ENTEREVAL) { |
| 2076 | char *name = cx->blk_eval.old_name; |
| 2077 | |
| 2078 | if (!(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp)) { |
| 2079 | /* Unassume the success we assumed earlier. */ |
| 2080 | (void)hv_delete(GvHVn(incgv), name, strlen(name)); |
| 2081 | |
| 2082 | if (optype == OP_REQUIRE) |
| 2083 | retop = die("%s did not return a true value", name); |
| 2084 | } |
| 2085 | } |
| 2086 | |
| 2087 | lex_end(); |
| 2088 | LEAVE; |
| 2089 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
| 2090 | |
| 2091 | RETURNOP(retop); |
| 2092 | } |
| 2093 | |
| 2094 | #ifdef NOTYET |
| 2095 | PP(pp_evalonce) |
| 2096 | { |
| 2097 | dSP; |
| 2098 | SP = do_eval(st[1], OP_EVAL, curcop->cop_stash, TRUE, |
| 2099 | GIMME, arglast); |
| 2100 | if (eval_root) { |
| 2101 | SvREFCNT_dec(cSVOP->op_sv); |
| 2102 | op[1].arg_ptr.arg_cmd = eval_root; |
| 2103 | op[1].op_type = (A_CMD|A_DONT); |
| 2104 | op[0].op_type = OP_TRY; |
| 2105 | } |
| 2106 | RETURN; |
| 2107 | } |
| 2108 | #endif |
| 2109 | |
| 2110 | PP(pp_entertry) |
| 2111 | { |
| 2112 | dSP; |
| 2113 | register CONTEXT *cx; |
| 2114 | I32 gimme = GIMME; |
| 2115 | |
| 2116 | ENTER; |
| 2117 | SAVETMPS; |
| 2118 | |
| 2119 | push_return(cLOGOP->op_other->op_next); |
| 2120 | PUSHBLOCK(cx, CXt_EVAL, SP); |
| 2121 | PUSHEVAL(cx, 0, 0); |
| 2122 | eval_root = op; /* Only needed so that goto works right. */ |
| 2123 | |
| 2124 | in_eval = 1; |
| 2125 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
| 2126 | RETURN; |
| 2127 | } |
| 2128 | |
| 2129 | PP(pp_leavetry) |
| 2130 | { |
| 2131 | dSP; |
| 2132 | register SV **mark; |
| 2133 | SV **newsp; |
| 2134 | PMOP *newpm; |
| 2135 | I32 gimme; |
| 2136 | register CONTEXT *cx; |
| 2137 | I32 optype; |
| 2138 | |
| 2139 | POPBLOCK(cx,newpm); |
| 2140 | POPEVAL(cx); |
| 2141 | pop_return(); |
| 2142 | |
| 2143 | if (gimme == G_SCALAR) { |
| 2144 | if (op->op_private & OPpLEAVE_VOID) |
| 2145 | MARK = newsp; |
| 2146 | else { |
| 2147 | MARK = newsp + 1; |
| 2148 | if (MARK <= SP) { |
| 2149 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
| 2150 | *MARK = TOPs; |
| 2151 | else |
| 2152 | *MARK = sv_mortalcopy(TOPs); |
| 2153 | } |
| 2154 | else { |
| 2155 | MEXTEND(mark,0); |
| 2156 | *MARK = &sv_undef; |
| 2157 | } |
| 2158 | } |
| 2159 | SP = MARK; |
| 2160 | } |
| 2161 | else { |
| 2162 | for (mark = newsp + 1; mark <= SP; mark++) |
| 2163 | if (!(SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))) |
| 2164 | *mark = sv_mortalcopy(*mark); |
| 2165 | /* in case LEAVE wipes old return values */ |
| 2166 | } |
| 2167 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 2168 | |
| 2169 | LEAVE; |
| 2170 | sv_setpv(GvSV(gv_fetchpv("@",TRUE, SVt_PV)),""); |
| 2171 | RETURN; |
| 2172 | } |
| 2173 | |
| 2174 | static void |
| 2175 | doparseform(sv) |
| 2176 | SV *sv; |
| 2177 | { |
| 2178 | STRLEN len; |
| 2179 | register char *s = SvPV_force(sv, len); |
| 2180 | register char *send = s + len; |
| 2181 | register char *base; |
| 2182 | register I32 skipspaces = 0; |
| 2183 | bool noblank; |
| 2184 | bool repeat; |
| 2185 | bool postspace = FALSE; |
| 2186 | U16 *fops; |
| 2187 | register U16 *fpc; |
| 2188 | U16 *linepc; |
| 2189 | register I32 arg; |
| 2190 | bool ischop; |
| 2191 | |
| 2192 | New(804, fops, (send - s)*3+2, U16); /* Almost certainly too long... */ |
| 2193 | fpc = fops; |
| 2194 | |
| 2195 | if (s < send) { |
| 2196 | linepc = fpc; |
| 2197 | *fpc++ = FF_LINEMARK; |
| 2198 | noblank = repeat = FALSE; |
| 2199 | base = s; |
| 2200 | } |
| 2201 | |
| 2202 | while (s <= send) { |
| 2203 | switch (*s++) { |
| 2204 | default: |
| 2205 | skipspaces = 0; |
| 2206 | continue; |
| 2207 | |
| 2208 | case '~': |
| 2209 | if (*s == '~') { |
| 2210 | repeat = TRUE; |
| 2211 | *s = ' '; |
| 2212 | } |
| 2213 | noblank = TRUE; |
| 2214 | s[-1] = ' '; |
| 2215 | /* FALL THROUGH */ |
| 2216 | case ' ': case '\t': |
| 2217 | skipspaces++; |
| 2218 | continue; |
| 2219 | |
| 2220 | case '\n': case 0: |
| 2221 | arg = s - base; |
| 2222 | skipspaces++; |
| 2223 | arg -= skipspaces; |
| 2224 | if (arg) { |
| 2225 | if (postspace) { |
| 2226 | *fpc++ = FF_SPACE; |
| 2227 | postspace = FALSE; |
| 2228 | } |
| 2229 | *fpc++ = FF_LITERAL; |
| 2230 | *fpc++ = arg; |
| 2231 | } |
| 2232 | if (s <= send) |
| 2233 | skipspaces--; |
| 2234 | if (skipspaces) { |
| 2235 | *fpc++ = FF_SKIP; |
| 2236 | *fpc++ = skipspaces; |
| 2237 | } |
| 2238 | skipspaces = 0; |
| 2239 | if (s <= send) |
| 2240 | *fpc++ = FF_NEWLINE; |
| 2241 | if (noblank) { |
| 2242 | *fpc++ = FF_BLANK; |
| 2243 | if (repeat) |
| 2244 | arg = fpc - linepc + 1; |
| 2245 | else |
| 2246 | arg = 0; |
| 2247 | *fpc++ = arg; |
| 2248 | } |
| 2249 | if (s < send) { |
| 2250 | linepc = fpc; |
| 2251 | *fpc++ = FF_LINEMARK; |
| 2252 | noblank = repeat = FALSE; |
| 2253 | base = s; |
| 2254 | } |
| 2255 | else |
| 2256 | s++; |
| 2257 | continue; |
| 2258 | |
| 2259 | case '@': |
| 2260 | case '^': |
| 2261 | ischop = s[-1] == '^'; |
| 2262 | |
| 2263 | if (postspace) { |
| 2264 | *fpc++ = FF_SPACE; |
| 2265 | postspace = FALSE; |
| 2266 | } |
| 2267 | arg = (s - base) - 1; |
| 2268 | if (arg) { |
| 2269 | *fpc++ = FF_LITERAL; |
| 2270 | *fpc++ = arg; |
| 2271 | } |
| 2272 | |
| 2273 | base = s - 1; |
| 2274 | *fpc++ = FF_FETCH; |
| 2275 | if (*s == '*') { |
| 2276 | s++; |
| 2277 | *fpc++ = 0; |
| 2278 | *fpc++ = FF_LINEGLOB; |
| 2279 | } |
| 2280 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { |
| 2281 | arg = ischop ? 512 : 0; |
| 2282 | base = s - 1; |
| 2283 | while (*s == '#') |
| 2284 | s++; |
| 2285 | if (*s == '.') { |
| 2286 | char *f; |
| 2287 | s++; |
| 2288 | f = s; |
| 2289 | while (*s == '#') |
| 2290 | s++; |
| 2291 | arg |= 256 + (s - f); |
| 2292 | } |
| 2293 | *fpc++ = s - base; /* fieldsize for FETCH */ |
| 2294 | *fpc++ = FF_DECIMAL; |
| 2295 | *fpc++ = arg; |
| 2296 | } |
| 2297 | else { |
| 2298 | I32 prespace = 0; |
| 2299 | bool ismore = FALSE; |
| 2300 | |
| 2301 | if (*s == '>') { |
| 2302 | while (*++s == '>') ; |
| 2303 | prespace = FF_SPACE; |
| 2304 | } |
| 2305 | else if (*s == '|') { |
| 2306 | while (*++s == '|') ; |
| 2307 | prespace = FF_HALFSPACE; |
| 2308 | postspace = TRUE; |
| 2309 | } |
| 2310 | else { |
| 2311 | if (*s == '<') |
| 2312 | while (*++s == '<') ; |
| 2313 | postspace = TRUE; |
| 2314 | } |
| 2315 | if (*s == '.' && s[1] == '.' && s[2] == '.') { |
| 2316 | s += 3; |
| 2317 | ismore = TRUE; |
| 2318 | } |
| 2319 | *fpc++ = s - base; /* fieldsize for FETCH */ |
| 2320 | |
| 2321 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; |
| 2322 | |
| 2323 | if (prespace) |
| 2324 | *fpc++ = prespace; |
| 2325 | *fpc++ = FF_ITEM; |
| 2326 | if (ismore) |
| 2327 | *fpc++ = FF_MORE; |
| 2328 | if (ischop) |
| 2329 | *fpc++ = FF_CHOP; |
| 2330 | } |
| 2331 | base = s; |
| 2332 | skipspaces = 0; |
| 2333 | continue; |
| 2334 | } |
| 2335 | } |
| 2336 | *fpc++ = FF_END; |
| 2337 | |
| 2338 | arg = fpc - fops; |
| 2339 | { /* need to jump to the next word */ |
| 2340 | int z; |
| 2341 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; |
| 2342 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4); |
| 2343 | s = SvPVX(sv) + SvCUR(sv) + z; |
| 2344 | } |
| 2345 | Copy(fops, s, arg, U16); |
| 2346 | Safefree(fops); |
| 2347 | SvCOMPILED_on(sv); |
| 2348 | } |
| 2349 | |
projects / p5sagit/p5-mst-13.2.git / blame