| 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 | |
| 4633a7c4 |
70 | /* JMR: Check against the last compiled regexp */ |
| 71 | if ( ! pm->op_pmregexp || ! pm->op_pmregexp->precomp |
| 72 | || strnNE(pm->op_pmregexp->precomp, t, len) |
| 73 | || pm->op_pmregexp->precomp[len]) { |
| 74 | if (pm->op_pmregexp) { |
| 75 | pregfree(pm->op_pmregexp); |
| 76 | pm->op_pmregexp = Null(REGEXP*); /* crucial if regcomp aborts */ |
| 77 | } |
| a0d0e21e |
78 | |
| 4633a7c4 |
79 | pm->op_pmflags = pm->op_pmpermflags; /* reset case sensitivity */ |
| 80 | pm->op_pmregexp = pregcomp(t, t + len, pm); |
| 81 | } |
| a0d0e21e |
82 | |
| 83 | if (!pm->op_pmregexp->prelen && curpm) |
| 84 | pm = curpm; |
| 85 | else if (strEQ("\\s+", pm->op_pmregexp->precomp)) |
| 86 | pm->op_pmflags |= PMf_WHITE; |
| 87 | |
| 88 | if (pm->op_pmflags & PMf_KEEP) { |
| a0d0e21e |
89 | pm->op_pmflags &= ~PMf_RUNTIME; /* no point compiling again */ |
| 90 | hoistmust(pm); |
| 91 | cLOGOP->op_first->op_next = op->op_next; |
| a0d0e21e |
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 */ |
| e50aee73 |
117 | if (cx->sb_once || !pregexec(rx, s, cx->sb_strend, orig, |
| a0d0e21e |
118 | s == m, Nullsv, cx->sb_safebase)) |
| 119 | { |
| 120 | SV *targ = cx->sb_targ; |
| 121 | sv_catpvn(dstr, s, cx->sb_strend - s); |
| 748a9306 |
122 | |
| 4633a7c4 |
123 | (void)SvOOK_off(targ); |
| cb0b1708 |
124 | Safefree(SvPVX(targ)); |
| 748a9306 |
125 | SvPVX(targ) = SvPVX(dstr); |
| 126 | SvCUR_set(targ, SvCUR(dstr)); |
| 127 | SvLEN_set(targ, SvLEN(dstr)); |
| 128 | SvPVX(dstr) = 0; |
| 129 | sv_free(dstr); |
| 130 | |
| a0d0e21e |
131 | (void)SvPOK_only(targ); |
| 132 | SvSETMAGIC(targ); |
| 133 | PUSHs(sv_2mortal(newSViv((I32)cx->sb_iters - 1))); |
| 4633a7c4 |
134 | LEAVE_SCOPE(cx->sb_oldsave); |
| a0d0e21e |
135 | POPSUBST(cx); |
| 136 | RETURNOP(pm->op_next); |
| 137 | } |
| 138 | } |
| 139 | if (rx->subbase && rx->subbase != orig) { |
| 140 | m = s; |
| 141 | s = orig; |
| 142 | cx->sb_orig = orig = rx->subbase; |
| 143 | s = orig + (m - s); |
| 144 | cx->sb_strend = s + (cx->sb_strend - m); |
| 145 | } |
| 146 | cx->sb_m = m = rx->startp[0]; |
| 147 | sv_catpvn(dstr, s, m-s); |
| 148 | cx->sb_s = rx->endp[0]; |
| 149 | cx->sb_subbase = rx->subbase; |
| 150 | |
| 151 | rx->subbase = Nullch; /* so recursion works */ |
| 152 | RETURNOP(pm->op_pmreplstart); |
| 153 | } |
| 154 | |
| 155 | PP(pp_formline) |
| 156 | { |
| 157 | dSP; dMARK; dORIGMARK; |
| 158 | register SV *form = *++MARK; |
| 159 | register U16 *fpc; |
| 160 | register char *t; |
| 161 | register char *f; |
| 162 | register char *s; |
| 163 | register char *send; |
| 164 | register I32 arg; |
| 165 | register SV *sv; |
| 166 | char *item; |
| 167 | I32 itemsize; |
| 168 | I32 fieldsize; |
| 169 | I32 lines = 0; |
| 170 | bool chopspace = (strchr(chopset, ' ') != Nullch); |
| 171 | char *chophere; |
| 172 | char *linemark; |
| a0d0e21e |
173 | double value; |
| 174 | bool gotsome; |
| 175 | STRLEN len; |
| 176 | |
| 177 | if (!SvCOMPILED(form)) { |
| 178 | SvREADONLY_off(form); |
| 179 | doparseform(form); |
| 180 | } |
| 181 | |
| 182 | SvPV_force(formtarget, len); |
| 183 | t = SvGROW(formtarget, len + SvCUR(form) + 1); /* XXX SvCUR bad */ |
| 184 | t += len; |
| 185 | f = SvPV(form, len); |
| 186 | /* need to jump to the next word */ |
| 187 | s = f + len + WORD_ALIGN - SvCUR(form) % WORD_ALIGN; |
| 188 | |
| 189 | fpc = (U16*)s; |
| 190 | |
| 191 | for (;;) { |
| 192 | DEBUG_f( { |
| 193 | char *name = "???"; |
| 194 | arg = -1; |
| 195 | switch (*fpc) { |
| 196 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; |
| 197 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; |
| 198 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; |
| 199 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; |
| 200 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; |
| 201 | |
| 202 | case FF_CHECKNL: name = "CHECKNL"; break; |
| 203 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; |
| 204 | case FF_SPACE: name = "SPACE"; break; |
| 205 | case FF_HALFSPACE: name = "HALFSPACE"; break; |
| 206 | case FF_ITEM: name = "ITEM"; break; |
| 207 | case FF_CHOP: name = "CHOP"; break; |
| 208 | case FF_LINEGLOB: name = "LINEGLOB"; break; |
| 209 | case FF_NEWLINE: name = "NEWLINE"; break; |
| 210 | case FF_MORE: name = "MORE"; break; |
| 211 | case FF_LINEMARK: name = "LINEMARK"; break; |
| 212 | case FF_END: name = "END"; break; |
| 213 | } |
| 214 | if (arg >= 0) |
| 215 | fprintf(stderr, "%-16s%ld\n", name, (long) arg); |
| 216 | else |
| 217 | fprintf(stderr, "%-16s\n", name); |
| 218 | } ) |
| 219 | switch (*fpc++) { |
| 220 | case FF_LINEMARK: |
| 221 | linemark = t; |
| a0d0e21e |
222 | lines++; |
| 223 | gotsome = FALSE; |
| 224 | break; |
| 225 | |
| 226 | case FF_LITERAL: |
| 227 | arg = *fpc++; |
| 228 | while (arg--) |
| 229 | *t++ = *f++; |
| 230 | break; |
| 231 | |
| 232 | case FF_SKIP: |
| 233 | f += *fpc++; |
| 234 | break; |
| 235 | |
| 236 | case FF_FETCH: |
| 237 | arg = *fpc++; |
| 238 | f += arg; |
| 239 | fieldsize = arg; |
| 240 | |
| 241 | if (MARK < SP) |
| 242 | sv = *++MARK; |
| 243 | else { |
| 244 | sv = &sv_no; |
| 245 | if (dowarn) |
| 246 | warn("Not enough format arguments"); |
| 247 | } |
| 248 | break; |
| 249 | |
| 250 | case FF_CHECKNL: |
| 251 | item = s = SvPV(sv, len); |
| 252 | itemsize = len; |
| 253 | if (itemsize > fieldsize) |
| 254 | itemsize = fieldsize; |
| 255 | send = chophere = s + itemsize; |
| 256 | while (s < send) { |
| 257 | if (*s & ~31) |
| 258 | gotsome = TRUE; |
| 259 | else if (*s == '\n') |
| 260 | break; |
| 261 | s++; |
| 262 | } |
| 263 | itemsize = s - item; |
| 264 | break; |
| 265 | |
| 266 | case FF_CHECKCHOP: |
| 267 | item = s = SvPV(sv, len); |
| 268 | itemsize = len; |
| 269 | if (itemsize <= fieldsize) { |
| 270 | send = chophere = s + itemsize; |
| 271 | while (s < send) { |
| 272 | if (*s == '\r') { |
| 273 | itemsize = s - item; |
| 274 | break; |
| 275 | } |
| 276 | if (*s++ & ~31) |
| 277 | gotsome = TRUE; |
| 278 | } |
| 279 | } |
| 280 | else { |
| 281 | itemsize = fieldsize; |
| 282 | send = chophere = s + itemsize; |
| 283 | while (s < send || (s == send && isSPACE(*s))) { |
| 284 | if (isSPACE(*s)) { |
| 285 | if (chopspace) |
| 286 | chophere = s; |
| 287 | if (*s == '\r') |
| 288 | break; |
| 289 | } |
| 290 | else { |
| 291 | if (*s & ~31) |
| 292 | gotsome = TRUE; |
| 293 | if (strchr(chopset, *s)) |
| 294 | chophere = s + 1; |
| 295 | } |
| 296 | s++; |
| 297 | } |
| 298 | itemsize = chophere - item; |
| 299 | } |
| 300 | break; |
| 301 | |
| 302 | case FF_SPACE: |
| 303 | arg = fieldsize - itemsize; |
| 304 | if (arg) { |
| 305 | fieldsize -= arg; |
| 306 | while (arg-- > 0) |
| 307 | *t++ = ' '; |
| 308 | } |
| 309 | break; |
| 310 | |
| 311 | case FF_HALFSPACE: |
| 312 | arg = fieldsize - itemsize; |
| 313 | if (arg) { |
| 314 | arg /= 2; |
| 315 | fieldsize -= arg; |
| 316 | while (arg-- > 0) |
| 317 | *t++ = ' '; |
| 318 | } |
| 319 | break; |
| 320 | |
| 321 | case FF_ITEM: |
| 322 | arg = itemsize; |
| 323 | s = item; |
| 324 | while (arg--) { |
| 325 | #if 'z' - 'a' != 25 |
| 326 | int ch = *t++ = *s++; |
| 327 | if (!iscntrl(ch)) |
| 328 | t[-1] = ' '; |
| 329 | #else |
| 330 | if ( !((*t++ = *s++) & ~31) ) |
| 331 | t[-1] = ' '; |
| 332 | #endif |
| 333 | |
| 334 | } |
| 335 | break; |
| 336 | |
| 337 | case FF_CHOP: |
| 338 | s = chophere; |
| 339 | if (chopspace) { |
| 340 | while (*s && isSPACE(*s)) |
| 341 | s++; |
| 342 | } |
| 343 | sv_chop(sv,s); |
| 344 | break; |
| 345 | |
| 346 | case FF_LINEGLOB: |
| 347 | item = s = SvPV(sv, len); |
| 348 | itemsize = len; |
| 349 | if (itemsize) { |
| 350 | gotsome = TRUE; |
| 351 | send = s + itemsize; |
| 352 | while (s < send) { |
| 353 | if (*s++ == '\n') { |
| 354 | if (s == send) |
| 355 | itemsize--; |
| 356 | else |
| 357 | lines++; |
| 358 | } |
| 359 | } |
| 360 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
| 361 | sv_catpvn(formtarget, item, itemsize); |
| 362 | SvGROW(formtarget, SvCUR(formtarget) + SvCUR(form) + 1); |
| 363 | t = SvPVX(formtarget) + SvCUR(formtarget); |
| 364 | } |
| 365 | break; |
| 366 | |
| 367 | case FF_DECIMAL: |
| 368 | /* If the field is marked with ^ and the value is undefined, |
| 369 | blank it out. */ |
| 370 | arg = *fpc++; |
| 371 | if ((arg & 512) && !SvOK(sv)) { |
| 372 | arg = fieldsize; |
| 373 | while (arg--) |
| 374 | *t++ = ' '; |
| 375 | break; |
| 376 | } |
| 377 | gotsome = TRUE; |
| 378 | value = SvNV(sv); |
| 379 | if (arg & 256) { |
| 380 | sprintf(t, "%#*.*f", (int) fieldsize, (int) arg & 255, value); |
| 381 | } else { |
| 382 | sprintf(t, "%*.0f", (int) fieldsize, value); |
| 383 | } |
| 384 | t += fieldsize; |
| 385 | break; |
| 386 | |
| 387 | case FF_NEWLINE: |
| 388 | f++; |
| 389 | while (t-- > linemark && *t == ' ') ; |
| 390 | t++; |
| 391 | *t++ = '\n'; |
| 392 | break; |
| 393 | |
| 394 | case FF_BLANK: |
| 395 | arg = *fpc++; |
| 396 | if (gotsome) { |
| 397 | if (arg) { /* repeat until fields exhausted? */ |
| 398 | *t = '\0'; |
| 399 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
| 400 | lines += FmLINES(formtarget); |
| 401 | if (lines == 200) { |
| 402 | arg = t - linemark; |
| 403 | if (strnEQ(linemark, linemark - arg, arg)) |
| 404 | DIE("Runaway format"); |
| 405 | } |
| 406 | FmLINES(formtarget) = lines; |
| 407 | SP = ORIGMARK; |
| 408 | RETURNOP(cLISTOP->op_first); |
| 409 | } |
| 410 | } |
| 411 | else { |
| 412 | t = linemark; |
| 413 | lines--; |
| 414 | } |
| 415 | break; |
| 416 | |
| 417 | case FF_MORE: |
| 418 | if (itemsize) { |
| 419 | arg = fieldsize - itemsize; |
| 420 | if (arg) { |
| 421 | fieldsize -= arg; |
| 422 | while (arg-- > 0) |
| 423 | *t++ = ' '; |
| 424 | } |
| 425 | s = t - 3; |
| 426 | if (strnEQ(s," ",3)) { |
| 427 | while (s > SvPVX(formtarget) && isSPACE(s[-1])) |
| 428 | s--; |
| 429 | } |
| 430 | *s++ = '.'; |
| 431 | *s++ = '.'; |
| 432 | *s++ = '.'; |
| 433 | } |
| 434 | break; |
| 435 | |
| 436 | case FF_END: |
| 437 | *t = '\0'; |
| 438 | SvCUR_set(formtarget, t - SvPVX(formtarget)); |
| 439 | FmLINES(formtarget) += lines; |
| 440 | SP = ORIGMARK; |
| 441 | RETPUSHYES; |
| 442 | } |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | PP(pp_grepstart) |
| 447 | { |
| 448 | dSP; |
| 449 | SV *src; |
| 450 | |
| 451 | if (stack_base + *markstack_ptr == sp) { |
| 452 | (void)POPMARK; |
| 453 | if (GIMME != G_ARRAY) |
| 454 | XPUSHs(&sv_no); |
| 455 | RETURNOP(op->op_next->op_next); |
| 456 | } |
| 457 | stack_sp = stack_base + *markstack_ptr + 1; |
| 458 | pp_pushmark(); /* push dst */ |
| 459 | pp_pushmark(); /* push src */ |
| 460 | ENTER; /* enter outer scope */ |
| 461 | |
| 462 | SAVETMPS; |
| 463 | SAVESPTR(GvSV(defgv)); |
| 464 | |
| 465 | ENTER; /* enter inner scope */ |
| 466 | SAVESPTR(curpm); |
| 467 | |
| 468 | src = stack_base[*markstack_ptr]; |
| 469 | SvTEMP_off(src); |
| 470 | GvSV(defgv) = src; |
| 471 | |
| 472 | PUTBACK; |
| 473 | if (op->op_type == OP_MAPSTART) |
| 474 | pp_pushmark(); /* push top */ |
| 475 | return ((LOGOP*)op->op_next)->op_other; |
| 476 | } |
| 477 | |
| 478 | PP(pp_mapstart) |
| 479 | { |
| 480 | DIE("panic: mapstart"); /* uses grepstart */ |
| 481 | } |
| 482 | |
| 483 | PP(pp_mapwhile) |
| 484 | { |
| 485 | dSP; |
| 486 | I32 diff = (sp - stack_base) - *markstack_ptr; |
| 487 | I32 count; |
| 488 | I32 shift; |
| 489 | SV** src; |
| 490 | SV** dst; |
| 491 | |
| 492 | ++markstack_ptr[-1]; |
| 493 | if (diff) { |
| 494 | if (diff > markstack_ptr[-1] - markstack_ptr[-2]) { |
| 495 | shift = diff - (markstack_ptr[-1] - markstack_ptr[-2]); |
| 496 | count = (sp - stack_base) - markstack_ptr[-1] + 2; |
| 497 | |
| 498 | EXTEND(sp,shift); |
| 499 | src = sp; |
| 500 | dst = (sp += shift); |
| 501 | markstack_ptr[-1] += shift; |
| 502 | *markstack_ptr += shift; |
| 503 | while (--count) |
| 504 | *dst-- = *src--; |
| 505 | } |
| 506 | dst = stack_base + (markstack_ptr[-2] += diff) - 1; |
| 507 | ++diff; |
| 508 | while (--diff) |
| 509 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); |
| 510 | } |
| 511 | LEAVE; /* exit inner scope */ |
| 512 | |
| 513 | /* All done yet? */ |
| 514 | if (markstack_ptr[-1] > *markstack_ptr) { |
| 515 | I32 items; |
| 516 | |
| 517 | (void)POPMARK; /* pop top */ |
| 518 | LEAVE; /* exit outer scope */ |
| 519 | (void)POPMARK; /* pop src */ |
| 520 | items = --*markstack_ptr - markstack_ptr[-1]; |
| 521 | (void)POPMARK; /* pop dst */ |
| 522 | SP = stack_base + POPMARK; /* pop original mark */ |
| 523 | if (GIMME != G_ARRAY) { |
| 524 | dTARGET; |
| 525 | XPUSHi(items); |
| 526 | RETURN; |
| 527 | } |
| 528 | SP += items; |
| 529 | RETURN; |
| 530 | } |
| 531 | else { |
| 532 | SV *src; |
| 533 | |
| 534 | ENTER; /* enter inner scope */ |
| 535 | SAVESPTR(curpm); |
| 536 | |
| 537 | src = stack_base[markstack_ptr[-1]]; |
| 538 | SvTEMP_off(src); |
| 539 | GvSV(defgv) = src; |
| 540 | |
| 541 | RETURNOP(cLOGOP->op_other); |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | |
| 546 | PP(pp_sort) |
| 547 | { |
| 548 | dSP; dMARK; dORIGMARK; |
| 549 | register SV **up; |
| 550 | SV **myorigmark = ORIGMARK; |
| 551 | register I32 max; |
| 552 | HV *stash; |
| 553 | GV *gv; |
| 554 | CV *cv; |
| 555 | I32 gimme = GIMME; |
| 556 | OP* nextop = op->op_next; |
| 557 | |
| 558 | if (gimme != G_ARRAY) { |
| 559 | SP = MARK; |
| 560 | RETPUSHUNDEF; |
| 561 | } |
| 562 | |
| 563 | if (op->op_flags & OPf_STACKED) { |
| 564 | ENTER; |
| 565 | if (op->op_flags & OPf_SPECIAL) { |
| 566 | OP *kid = cLISTOP->op_first->op_sibling; /* pass pushmark */ |
| 567 | kid = kUNOP->op_first; /* pass rv2gv */ |
| 568 | kid = kUNOP->op_first; /* pass leave */ |
| 569 | sortcop = kid->op_next; |
| 570 | stash = curcop->cop_stash; |
| 571 | } |
| 572 | else { |
| 573 | cv = sv_2cv(*++MARK, &stash, &gv, 0); |
| 574 | if (!(cv && CvROOT(cv))) { |
| 575 | if (gv) { |
| 576 | SV *tmpstr = sv_newmortal(); |
| 577 | gv_efullname(tmpstr, gv); |
| 578 | if (cv && CvXSUB(cv)) |
| 579 | DIE("Xsub \"%s\" called in sort", SvPVX(tmpstr)); |
| 580 | DIE("Undefined sort subroutine \"%s\" called", |
| 581 | SvPVX(tmpstr)); |
| 582 | } |
| 583 | if (cv) { |
| 584 | if (CvXSUB(cv)) |
| 585 | DIE("Xsub called in sort"); |
| 586 | DIE("Undefined subroutine in sort"); |
| 587 | } |
| 588 | DIE("Not a CODE reference in sort"); |
| 589 | } |
| 590 | sortcop = CvSTART(cv); |
| 591 | SAVESPTR(CvROOT(cv)->op_ppaddr); |
| 592 | CvROOT(cv)->op_ppaddr = ppaddr[OP_NULL]; |
| 593 | |
| 594 | SAVESPTR(curpad); |
| 595 | curpad = AvARRAY((AV*)AvARRAY(CvPADLIST(cv))[1]); |
| 596 | } |
| 597 | } |
| 598 | else { |
| 599 | sortcop = Nullop; |
| 600 | stash = curcop->cop_stash; |
| 601 | } |
| 602 | |
| 603 | up = myorigmark + 1; |
| 604 | while (MARK < SP) { /* This may or may not shift down one here. */ |
| 605 | /*SUPPRESS 560*/ |
| 606 | if (*up = *++MARK) { /* Weed out nulls. */ |
| 607 | if (!SvPOK(*up)) |
| 608 | (void)sv_2pv(*up, &na); |
| 609 | else |
| 610 | SvTEMP_off(*up); |
| 611 | up++; |
| 612 | } |
| 613 | } |
| 614 | max = --up - myorigmark; |
| 615 | if (sortcop) { |
| 616 | if (max > 1) { |
| 617 | AV *oldstack; |
| 618 | CONTEXT *cx; |
| 619 | SV** newsp; |
| 620 | |
| 621 | SAVETMPS; |
| 622 | SAVESPTR(op); |
| 623 | |
| 624 | oldstack = stack; |
| 625 | if (!sortstack) { |
| 626 | sortstack = newAV(); |
| 627 | AvREAL_off(sortstack); |
| 628 | av_extend(sortstack, 32); |
| 629 | } |
| 630 | SWITCHSTACK(stack, sortstack); |
| 631 | if (sortstash != stash) { |
| 632 | firstgv = gv_fetchpv("a", TRUE, SVt_PV); |
| 633 | secondgv = gv_fetchpv("b", TRUE, SVt_PV); |
| 634 | sortstash = stash; |
| 635 | } |
| 636 | |
| 637 | SAVESPTR(GvSV(firstgv)); |
| 638 | SAVESPTR(GvSV(secondgv)); |
| 639 | PUSHBLOCK(cx, CXt_LOOP, stack_base); |
| 640 | sortcxix = cxstack_ix; |
| 641 | |
| 642 | qsort((char*)(myorigmark+1), max, sizeof(SV*), sortcv); |
| 643 | |
| 644 | POPBLOCK(cx,curpm); |
| 645 | SWITCHSTACK(sortstack, oldstack); |
| 646 | } |
| 647 | LEAVE; |
| 648 | } |
| 649 | else { |
| 650 | if (max > 1) { |
| 651 | MEXTEND(SP, 20); /* Can't afford stack realloc on signal. */ |
| 652 | qsort((char*)(ORIGMARK+1), max, sizeof(SV*), sortcmp); |
| 653 | } |
| 654 | } |
| 655 | stack_sp = ORIGMARK + max; |
| 656 | return nextop; |
| 657 | } |
| 658 | |
| 659 | /* Range stuff. */ |
| 660 | |
| 661 | PP(pp_range) |
| 662 | { |
| 663 | if (GIMME == G_ARRAY) |
| 664 | return cCONDOP->op_true; |
| 665 | return SvTRUEx(PAD_SV(op->op_targ)) ? cCONDOP->op_false : cCONDOP->op_true; |
| 666 | } |
| 667 | |
| 668 | PP(pp_flip) |
| 669 | { |
| 670 | dSP; |
| 671 | |
| 672 | if (GIMME == G_ARRAY) { |
| 673 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
| 674 | } |
| 675 | else { |
| 676 | dTOPss; |
| 677 | SV *targ = PAD_SV(op->op_targ); |
| 678 | |
| 679 | if ((op->op_private & OPpFLIP_LINENUM) |
| 680 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
| 681 | : SvTRUE(sv) ) { |
| 682 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
| 683 | if (op->op_flags & OPf_SPECIAL) { |
| 684 | sv_setiv(targ, 1); |
| 685 | RETURN; |
| 686 | } |
| 687 | else { |
| 688 | sv_setiv(targ, 0); |
| 689 | sp--; |
| 690 | RETURNOP(((CONDOP*)cUNOP->op_first)->op_false); |
| 691 | } |
| 692 | } |
| 693 | sv_setpv(TARG, ""); |
| 694 | SETs(targ); |
| 695 | RETURN; |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | PP(pp_flop) |
| 700 | { |
| 701 | dSP; |
| 702 | |
| 703 | if (GIMME == G_ARRAY) { |
| 704 | dPOPPOPssrl; |
| 705 | register I32 i; |
| 706 | register SV *sv; |
| 707 | I32 max; |
| 708 | |
| 4633a7c4 |
709 | if (SvNIOKp(left) || !SvPOKp(left) || |
| a0d0e21e |
710 | (looks_like_number(left) && *SvPVX(left) != '0') ) { |
| 711 | i = SvIV(left); |
| 712 | max = SvIV(right); |
| 713 | if (max > i) |
| 714 | EXTEND(SP, max - i + 1); |
| 715 | while (i <= max) { |
| 716 | sv = sv_mortalcopy(&sv_no); |
| 717 | sv_setiv(sv,i++); |
| 718 | PUSHs(sv); |
| 719 | } |
| 720 | } |
| 721 | else { |
| 722 | SV *final = sv_mortalcopy(right); |
| 723 | STRLEN len; |
| 724 | char *tmps = SvPV(final, len); |
| 725 | |
| 726 | sv = sv_mortalcopy(left); |
| 4633a7c4 |
727 | while (!SvNIOKp(sv) && SvCUR(sv) <= len && |
| a0d0e21e |
728 | strNE(SvPVX(sv),tmps) ) { |
| 729 | XPUSHs(sv); |
| 730 | sv = sv_2mortal(newSVsv(sv)); |
| 731 | sv_inc(sv); |
| 732 | } |
| 733 | if (strEQ(SvPVX(sv),tmps)) |
| 734 | XPUSHs(sv); |
| 735 | } |
| 736 | } |
| 737 | else { |
| 738 | dTOPss; |
| 739 | SV *targ = PAD_SV(cUNOP->op_first->op_targ); |
| 740 | sv_inc(targ); |
| 741 | if ((op->op_private & OPpFLIP_LINENUM) |
| 742 | ? last_in_gv && SvIV(sv) == IoLINES(GvIOp(last_in_gv)) |
| 743 | : SvTRUE(sv) ) { |
| 744 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
| 745 | sv_catpv(targ, "E0"); |
| 746 | } |
| 747 | SETs(targ); |
| 748 | } |
| 749 | |
| 750 | RETURN; |
| 751 | } |
| 752 | |
| 753 | /* Control. */ |
| 754 | |
| 755 | static I32 |
| 756 | dopoptolabel(label) |
| 757 | char *label; |
| 758 | { |
| 759 | register I32 i; |
| 760 | register CONTEXT *cx; |
| 761 | |
| 762 | for (i = cxstack_ix; i >= 0; i--) { |
| 763 | cx = &cxstack[i]; |
| 764 | switch (cx->cx_type) { |
| 765 | case CXt_SUBST: |
| 766 | if (dowarn) |
| 767 | warn("Exiting substitution via %s", op_name[op->op_type]); |
| 768 | break; |
| 769 | case CXt_SUB: |
| 770 | if (dowarn) |
| 771 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
| 772 | break; |
| 773 | case CXt_EVAL: |
| 774 | if (dowarn) |
| 775 | warn("Exiting eval via %s", op_name[op->op_type]); |
| 776 | break; |
| 777 | case CXt_LOOP: |
| 778 | if (!cx->blk_loop.label || |
| 779 | strNE(label, cx->blk_loop.label) ) { |
| 780 | DEBUG_l(deb("(Skipping label #%d %s)\n", |
| 781 | i, cx->blk_loop.label)); |
| 782 | continue; |
| 783 | } |
| 784 | DEBUG_l( deb("(Found label #%d %s)\n", i, label)); |
| 785 | return i; |
| 786 | } |
| 787 | } |
| 788 | return i; |
| 789 | } |
| 790 | |
| e50aee73 |
791 | I32 |
| 792 | dowantarray() |
| 793 | { |
| 794 | I32 cxix; |
| 795 | |
| 796 | cxix = dopoptosub(cxstack_ix); |
| 797 | if (cxix < 0) |
| 798 | return G_SCALAR; |
| 799 | |
| 800 | if (cxstack[cxix].blk_gimme == G_ARRAY) |
| 801 | return G_ARRAY; |
| 802 | else |
| 803 | return G_SCALAR; |
| 804 | } |
| 805 | |
| a0d0e21e |
806 | static I32 |
| 807 | dopoptosub(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 | case CXt_SUB: |
| 819 | DEBUG_l( deb("(Found sub #%d)\n", i)); |
| 820 | return i; |
| 821 | } |
| 822 | } |
| 823 | return i; |
| 824 | } |
| 825 | |
| 826 | static I32 |
| 827 | dopoptoeval(startingblock) |
| 828 | I32 startingblock; |
| 829 | { |
| 830 | I32 i; |
| 831 | register CONTEXT *cx; |
| 832 | for (i = startingblock; i >= 0; i--) { |
| 833 | cx = &cxstack[i]; |
| 834 | switch (cx->cx_type) { |
| 835 | default: |
| 836 | continue; |
| 837 | case CXt_EVAL: |
| 838 | DEBUG_l( deb("(Found eval #%d)\n", i)); |
| 839 | return i; |
| 840 | } |
| 841 | } |
| 842 | return i; |
| 843 | } |
| 844 | |
| 845 | static I32 |
| 846 | dopoptoloop(startingblock) |
| 847 | I32 startingblock; |
| 848 | { |
| 849 | I32 i; |
| 850 | register CONTEXT *cx; |
| 851 | for (i = startingblock; i >= 0; i--) { |
| 852 | cx = &cxstack[i]; |
| 853 | switch (cx->cx_type) { |
| 854 | case CXt_SUBST: |
| 855 | if (dowarn) |
| 856 | warn("Exiting substitition via %s", op_name[op->op_type]); |
| 857 | break; |
| 858 | case CXt_SUB: |
| 859 | if (dowarn) |
| 860 | warn("Exiting subroutine via %s", op_name[op->op_type]); |
| 861 | break; |
| 862 | case CXt_EVAL: |
| 863 | if (dowarn) |
| 864 | warn("Exiting eval via %s", op_name[op->op_type]); |
| 865 | break; |
| 866 | case CXt_LOOP: |
| 867 | DEBUG_l( deb("(Found loop #%d)\n", i)); |
| 868 | return i; |
| 869 | } |
| 870 | } |
| 871 | return i; |
| 872 | } |
| 873 | |
| 874 | void |
| 875 | dounwind(cxix) |
| 876 | I32 cxix; |
| 877 | { |
| 878 | register CONTEXT *cx; |
| 879 | SV **newsp; |
| 880 | I32 optype; |
| 881 | |
| 882 | while (cxstack_ix > cxix) { |
| 883 | cx = &cxstack[cxstack_ix--]; |
| 884 | DEBUG_l(fprintf(stderr, "Unwinding block %ld, type %s\n", (long) cxstack_ix+1, |
| 885 | block_type[cx->cx_type])); |
| 886 | /* Note: we don't need to restore the base context info till the end. */ |
| 887 | switch (cx->cx_type) { |
| 888 | case CXt_SUB: |
| 889 | POPSUB(cx); |
| 890 | break; |
| 891 | case CXt_EVAL: |
| 892 | POPEVAL(cx); |
| 893 | break; |
| 894 | case CXt_LOOP: |
| 895 | POPLOOP(cx); |
| 896 | break; |
| 897 | case CXt_SUBST: |
| 898 | break; |
| 899 | } |
| 900 | } |
| 901 | } |
| 902 | |
| ecfc5424 |
903 | #ifdef I_STDARG |
| a0d0e21e |
904 | OP * |
| 905 | die(char* pat, ...) |
| 906 | #else |
| 907 | /*VARARGS0*/ |
| 908 | OP * |
| 909 | die(pat, va_alist) |
| 910 | char *pat; |
| 911 | va_dcl |
| 912 | #endif |
| 913 | { |
| 914 | va_list args; |
| 915 | char *message; |
| 916 | int oldrunlevel = runlevel; |
| 917 | int was_in_eval = in_eval; |
| 748a9306 |
918 | HV *stash; |
| 919 | GV *gv; |
| 920 | CV *cv; |
| a0d0e21e |
921 | |
| 922 | #ifdef I_STDARG |
| 923 | va_start(args, pat); |
| 924 | #else |
| 925 | va_start(args); |
| 926 | #endif |
| 927 | message = mess(pat, &args); |
| 928 | va_end(args); |
| 748a9306 |
929 | if (diehook && (cv = sv_2cv(diehook, &stash, &gv, 0)) && !CvDEPTH(cv)) { |
| 930 | dSP; |
| 931 | |
| 932 | PUSHMARK(sp); |
| 933 | EXTEND(sp, 1); |
| 934 | PUSHs(sv_2mortal(newSVpv(message,0))); |
| 935 | PUTBACK; |
| 936 | perl_call_sv((SV*)cv, G_DISCARD); |
| 937 | } |
| a0d0e21e |
938 | restartop = die_where(message); |
| 939 | if ((!restartop && was_in_eval) || oldrunlevel > 1) |
| 940 | longjmp(top_env, 3); |
| 941 | return restartop; |
| 942 | } |
| 943 | |
| 944 | OP * |
| 945 | die_where(message) |
| 946 | char *message; |
| 947 | { |
| 948 | if (in_eval) { |
| 949 | I32 cxix; |
| 950 | register CONTEXT *cx; |
| 951 | I32 gimme; |
| 952 | SV **newsp; |
| 953 | |
| 4633a7c4 |
954 | if (in_eval & 4) { |
| 955 | SV **svp; |
| 956 | STRLEN klen = strlen(message); |
| 957 | |
| 958 | svp = hv_fetch(GvHV(errgv), message, klen, TRUE); |
| 959 | if (svp) { |
| 960 | if (!SvIOK(*svp)) { |
| 961 | static char prefix[] = "\t(in cleanup) "; |
| 962 | sv_upgrade(*svp, SVt_IV); |
| 963 | (void)SvIOK_only(*svp); |
| 964 | SvGROW(GvSV(errgv), SvCUR(GvSV(errgv))+sizeof(prefix)+klen); |
| 965 | sv_catpvn(GvSV(errgv), prefix, sizeof(prefix)-1); |
| 966 | sv_catpvn(GvSV(errgv), message, klen); |
| 967 | } |
| 968 | sv_inc(*svp); |
| 969 | } |
| 970 | } |
| 971 | else |
| 972 | sv_catpv(GvSV(errgv), message); |
| 973 | |
| a0d0e21e |
974 | cxix = dopoptoeval(cxstack_ix); |
| 975 | if (cxix >= 0) { |
| 976 | I32 optype; |
| 977 | |
| 978 | if (cxix < cxstack_ix) |
| 979 | dounwind(cxix); |
| 980 | |
| 981 | POPBLOCK(cx,curpm); |
| 982 | if (cx->cx_type != CXt_EVAL) { |
| 983 | fprintf(stderr, "panic: die %s", message); |
| 984 | my_exit(1); |
| 985 | } |
| 986 | POPEVAL(cx); |
| 987 | |
| 988 | if (gimme == G_SCALAR) |
| 989 | *++newsp = &sv_undef; |
| 990 | stack_sp = newsp; |
| 991 | |
| 992 | LEAVE; |
| 748a9306 |
993 | |
| a0d0e21e |
994 | if (optype == OP_REQUIRE) |
| 4633a7c4 |
995 | DIE("%s", SvPVx(GvSV(errgv), na)); |
| a0d0e21e |
996 | return pop_return(); |
| 997 | } |
| 998 | } |
| 999 | fputs(message, stderr); |
| 1000 | (void)fflush(stderr); |
| 1001 | if (e_fp) |
| 1002 | (void)UNLINK(e_tmpname); |
| 748a9306 |
1003 | statusvalue = SHIFTSTATUS(statusvalue); |
| 1004 | #ifdef VMS |
| 1005 | my_exit((U32)vaxc$errno?vaxc$errno:errno?errno:statusvalue?statusvalue:SS$_ABORT); |
| 1006 | #else |
| a0d0e21e |
1007 | my_exit((I32)((errno&255)?errno:((statusvalue&255)?statusvalue:255))); |
| 748a9306 |
1008 | #endif |
| a0d0e21e |
1009 | return 0; |
| 1010 | } |
| 1011 | |
| 1012 | PP(pp_xor) |
| 1013 | { |
| 1014 | dSP; dPOPTOPssrl; |
| 1015 | if (SvTRUE(left) != SvTRUE(right)) |
| 1016 | RETSETYES; |
| 1017 | else |
| 1018 | RETSETNO; |
| 1019 | } |
| 1020 | |
| 1021 | PP(pp_andassign) |
| 1022 | { |
| 1023 | dSP; |
| 1024 | if (!SvTRUE(TOPs)) |
| 1025 | RETURN; |
| 1026 | else |
| 1027 | RETURNOP(cLOGOP->op_other); |
| 1028 | } |
| 1029 | |
| 1030 | PP(pp_orassign) |
| 1031 | { |
| 1032 | dSP; |
| 1033 | if (SvTRUE(TOPs)) |
| 1034 | RETURN; |
| 1035 | else |
| 1036 | RETURNOP(cLOGOP->op_other); |
| 1037 | } |
| 1038 | |
| 1039 | #ifdef DEPRECATED |
| 1040 | PP(pp_entersubr) |
| 1041 | { |
| 1042 | dSP; |
| 1043 | SV** mark = (stack_base + *markstack_ptr + 1); |
| 1044 | SV* cv = *mark; |
| 1045 | while (mark < sp) { /* emulate old interface */ |
| 1046 | *mark = mark[1]; |
| 1047 | mark++; |
| 1048 | } |
| 1049 | *sp = cv; |
| 1050 | return pp_entersub(); |
| 1051 | } |
| 1052 | #endif |
| 1053 | |
| 1054 | PP(pp_caller) |
| 1055 | { |
| 1056 | dSP; |
| 1057 | register I32 cxix = dopoptosub(cxstack_ix); |
| 1058 | register CONTEXT *cx; |
| 1059 | I32 dbcxix; |
| 1060 | SV *sv; |
| 1061 | I32 count = 0; |
| 1062 | |
| 1063 | if (MAXARG) |
| 1064 | count = POPi; |
| 1065 | EXTEND(SP, 6); |
| 1066 | for (;;) { |
| 1067 | if (cxix < 0) { |
| 1068 | if (GIMME != G_ARRAY) |
| 1069 | RETPUSHUNDEF; |
| 1070 | RETURN; |
| 1071 | } |
| 1072 | if (DBsub && cxix >= 0 && |
| 1073 | cxstack[cxix].blk_sub.cv == GvCV(DBsub)) |
| 1074 | count++; |
| 1075 | if (!count--) |
| 1076 | break; |
| 1077 | cxix = dopoptosub(cxix - 1); |
| 1078 | } |
| 1079 | cx = &cxstack[cxix]; |
| 1080 | if (GIMME != G_ARRAY) { |
| 1081 | dTARGET; |
| 1082 | |
| 1083 | sv_setpv(TARG, HvNAME(cx->blk_oldcop->cop_stash)); |
| 1084 | PUSHs(TARG); |
| 1085 | RETURN; |
| 1086 | } |
| 1087 | dbcxix = dopoptosub(cxix - 1); |
| 1088 | if (DBsub && dbcxix >= 0 && cxstack[dbcxix].blk_sub.cv == GvCV(DBsub)) |
| 1089 | cx = &cxstack[dbcxix]; |
| 1090 | |
| 1091 | PUSHs(sv_2mortal(newSVpv(HvNAME(cx->blk_oldcop->cop_stash), 0))); |
| 1092 | PUSHs(sv_2mortal(newSVpv(SvPVX(GvSV(cx->blk_oldcop->cop_filegv)), 0))); |
| 1093 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_oldcop->cop_line))); |
| 1094 | if (!MAXARG) |
| 1095 | RETURN; |
| 1096 | if (cx->cx_type == CXt_SUB) { |
| 1097 | sv = NEWSV(49, 0); |
| 1098 | gv_efullname(sv, CvGV(cxstack[cxix].blk_sub.cv)); |
| 1099 | PUSHs(sv_2mortal(sv)); |
| 1100 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
| 1101 | } |
| 1102 | else { |
| 1103 | PUSHs(sv_2mortal(newSVpv("(eval)",0))); |
| 1104 | PUSHs(sv_2mortal(newSViv(0))); |
| 1105 | } |
| 1106 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_gimme))); |
| 4633a7c4 |
1107 | if (cx->cx_type == CXt_EVAL) { |
| 1108 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) |
| 1109 | PUSHs(cx->blk_eval.cur_text); |
| 1110 | } |
| 1111 | else if (cx->cx_type == CXt_SUB && |
| 1112 | cx->blk_sub.hasargs && |
| 1113 | curcop->cop_stash == debstash) |
| 1114 | { |
| a0d0e21e |
1115 | AV *ary = cx->blk_sub.argarray; |
| 1116 | int off = AvARRAY(ary) - AvALLOC(ary); |
| 1117 | |
| 1118 | if (!dbargs) { |
| 1119 | GV* tmpgv; |
| 1120 | dbargs = GvAV(gv_AVadd(tmpgv = gv_fetchpv("DB::args", TRUE, |
| 1121 | SVt_PVAV))); |
| 1122 | SvMULTI_on(tmpgv); |
| 1123 | AvREAL_off(dbargs); /* XXX Should be REIFY */ |
| 1124 | } |
| 1125 | |
| 1126 | if (AvMAX(dbargs) < AvFILL(ary) + off) |
| 1127 | av_extend(dbargs, AvFILL(ary) + off); |
| 1128 | Copy(AvALLOC(ary), AvARRAY(dbargs), AvFILL(ary) + 1 + off, SV*); |
| 1129 | AvFILL(dbargs) = AvFILL(ary) + off; |
| 1130 | } |
| 1131 | RETURN; |
| 1132 | } |
| 1133 | |
| 1134 | static int |
| 1135 | sortcv(a, b) |
| 1136 | const void *a; |
| 1137 | const void *b; |
| 1138 | { |
| 1139 | SV **str1 = (SV **) a; |
| 1140 | SV **str2 = (SV **) b; |
| 748a9306 |
1141 | I32 oldsaveix = savestack_ix; |
| a0d0e21e |
1142 | I32 oldscopeix = scopestack_ix; |
| 1143 | I32 result; |
| 1144 | GvSV(firstgv) = *str1; |
| 1145 | GvSV(secondgv) = *str2; |
| 1146 | stack_sp = stack_base; |
| 1147 | op = sortcop; |
| 1148 | run(); |
| 1149 | if (stack_sp != stack_base + 1) |
| 1150 | croak("Sort subroutine didn't return single value"); |
| 748a9306 |
1151 | if (!SvNIOKp(*stack_sp)) |
| a0d0e21e |
1152 | croak("Sort subroutine didn't return a numeric value"); |
| 1153 | result = SvIV(*stack_sp); |
| 1154 | while (scopestack_ix > oldscopeix) { |
| 1155 | LEAVE; |
| 1156 | } |
| 748a9306 |
1157 | leave_scope(oldsaveix); |
| a0d0e21e |
1158 | return result; |
| 1159 | } |
| 1160 | |
| 1161 | static int |
| 1162 | sortcmp(a, b) |
| 1163 | const void *a; |
| 1164 | const void *b; |
| 1165 | { |
| 1166 | register SV *str1 = *(SV **) a; |
| 1167 | register SV *str2 = *(SV **) b; |
| 1168 | I32 retval; |
| 1169 | |
| 4633a7c4 |
1170 | if (!SvPOKp(str1)) { |
| 1171 | if (!SvPOKp(str2)) |
| 1172 | return 0; |
| 1173 | else |
| 1174 | return -1; |
| 1175 | } |
| 1176 | if (!SvPOKp(str2)) |
| 1177 | return 1; |
| 1178 | |
| a0d0e21e |
1179 | if (SvCUR(str1) < SvCUR(str2)) { |
| 1180 | /*SUPPRESS 560*/ |
| 1181 | if (retval = memcmp(SvPVX(str1), SvPVX(str2), SvCUR(str1))) |
| 1182 | return retval; |
| 1183 | else |
| 1184 | return -1; |
| 1185 | } |
| 1186 | /*SUPPRESS 560*/ |
| 1187 | else if (retval = memcmp(SvPVX(str1), SvPVX(str2), SvCUR(str2))) |
| 1188 | return retval; |
| 1189 | else if (SvCUR(str1) == SvCUR(str2)) |
| 1190 | return 0; |
| 1191 | else |
| 1192 | return 1; |
| 1193 | } |
| 1194 | |
| 1195 | PP(pp_reset) |
| 1196 | { |
| 1197 | dSP; |
| 1198 | char *tmps; |
| 1199 | |
| 1200 | if (MAXARG < 1) |
| 1201 | tmps = ""; |
| 1202 | else |
| 1203 | tmps = POPp; |
| 1204 | sv_reset(tmps, curcop->cop_stash); |
| 1205 | PUSHs(&sv_yes); |
| 1206 | RETURN; |
| 1207 | } |
| 1208 | |
| 1209 | PP(pp_lineseq) |
| 1210 | { |
| 1211 | return NORMAL; |
| 1212 | } |
| 1213 | |
| 1214 | PP(pp_dbstate) |
| 1215 | { |
| 1216 | curcop = (COP*)op; |
| 1217 | TAINT_NOT; /* Each statement is presumed innocent */ |
| 1218 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
| 1219 | FREETMPS; |
| 1220 | |
| 1221 | if (op->op_private || SvIV(DBsingle) || SvIV(DBsignal) || SvIV(DBtrace)) |
| 1222 | { |
| 1223 | SV **sp; |
| 1224 | register CV *cv; |
| 1225 | register CONTEXT *cx; |
| 748a9306 |
1226 | I32 gimme = G_ARRAY; |
| a0d0e21e |
1227 | I32 hasargs; |
| 1228 | GV *gv; |
| 1229 | |
| a0d0e21e |
1230 | gv = DBgv; |
| 1231 | cv = GvCV(gv); |
| a0d0e21e |
1232 | if (!cv) |
| 1233 | DIE("No DB::DB routine defined"); |
| 1234 | |
| 4633a7c4 |
1235 | if (CvDEPTH(cv) >= 1) /* don't do recursive DB::DB call */ |
| a0d0e21e |
1236 | return NORMAL; |
| 748a9306 |
1237 | |
| 4633a7c4 |
1238 | ENTER; |
| 1239 | SAVETMPS; |
| 1240 | |
| 748a9306 |
1241 | SAVEI32(debug); |
| 1242 | SAVESPTR(stack_sp); |
| 1243 | debug = 0; |
| 1244 | hasargs = 0; |
| 1245 | sp = stack_sp; |
| 1246 | |
| a0d0e21e |
1247 | push_return(op->op_next); |
| 748a9306 |
1248 | PUSHBLOCK(cx, CXt_SUB, sp); |
| a0d0e21e |
1249 | PUSHSUB(cx); |
| 1250 | CvDEPTH(cv)++; |
| 1251 | (void)SvREFCNT_inc(cv); |
| 1252 | SAVESPTR(curpad); |
| 1253 | curpad = AvARRAY((AV*)*av_fetch(CvPADLIST(cv),1,FALSE)); |
| 1254 | RETURNOP(CvSTART(cv)); |
| 1255 | } |
| 1256 | else |
| 1257 | return NORMAL; |
| 1258 | } |
| 1259 | |
| 1260 | PP(pp_scope) |
| 1261 | { |
| 1262 | return NORMAL; |
| 1263 | } |
| 1264 | |
| 1265 | PP(pp_enteriter) |
| 1266 | { |
| 1267 | dSP; dMARK; |
| 1268 | register CONTEXT *cx; |
| 1269 | I32 gimme = GIMME; |
| 1270 | SV **svp; |
| 1271 | |
| 4633a7c4 |
1272 | ENTER; |
| 1273 | SAVETMPS; |
| 1274 | |
| a0d0e21e |
1275 | if (op->op_targ) |
| 1276 | svp = &curpad[op->op_targ]; /* "my" variable */ |
| 1277 | else |
| 1278 | svp = &GvSV((GV*)POPs); /* symbol table variable */ |
| 1279 | |
| 4633a7c4 |
1280 | SAVESPTR(*svp); |
| 1281 | |
| a0d0e21e |
1282 | ENTER; |
| 1283 | |
| 1284 | PUSHBLOCK(cx, CXt_LOOP, SP); |
| 1285 | PUSHLOOP(cx, svp, MARK); |
| 4633a7c4 |
1286 | if (op->op_flags & OPf_STACKED) { |
| 1287 | AV* av = (AV*)POPs; |
| 1288 | cx->blk_loop.iterary = av; |
| 1289 | cx->blk_loop.iterix = -1; |
| 1290 | } |
| 1291 | else { |
| 1292 | cx->blk_loop.iterary = stack; |
| 1293 | AvFILL(stack) = sp - stack_base; |
| 1294 | cx->blk_loop.iterix = MARK - stack_base; |
| 1295 | } |
| a0d0e21e |
1296 | |
| 1297 | RETURN; |
| 1298 | } |
| 1299 | |
| 1300 | PP(pp_enterloop) |
| 1301 | { |
| 1302 | dSP; |
| 1303 | register CONTEXT *cx; |
| 1304 | I32 gimme = GIMME; |
| 1305 | |
| 1306 | ENTER; |
| 1307 | SAVETMPS; |
| 1308 | ENTER; |
| 1309 | |
| 1310 | PUSHBLOCK(cx, CXt_LOOP, SP); |
| 1311 | PUSHLOOP(cx, 0, SP); |
| 1312 | |
| 1313 | RETURN; |
| 1314 | } |
| 1315 | |
| 1316 | PP(pp_leaveloop) |
| 1317 | { |
| 1318 | dSP; |
| 1319 | register CONTEXT *cx; |
| 1320 | I32 gimme; |
| 1321 | SV **newsp; |
| 1322 | PMOP *newpm; |
| 1323 | SV **mark; |
| 1324 | |
| 1325 | POPBLOCK(cx,newpm); |
| 1326 | mark = newsp; |
| 1327 | POPLOOP(cx); |
| 1328 | if (gimme == G_SCALAR) { |
| 1329 | if (op->op_private & OPpLEAVE_VOID) |
| 1330 | ; |
| 1331 | else { |
| 1332 | if (mark < SP) |
| 1333 | *++newsp = sv_mortalcopy(*SP); |
| 1334 | else |
| 1335 | *++newsp = &sv_undef; |
| 1336 | } |
| 1337 | } |
| 1338 | else { |
| 1339 | while (mark < SP) |
| 1340 | *++newsp = sv_mortalcopy(*++mark); |
| 1341 | } |
| 1342 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 1343 | sp = newsp; |
| 1344 | LEAVE; |
| 1345 | LEAVE; |
| 1346 | |
| 1347 | RETURN; |
| 1348 | } |
| 1349 | |
| 1350 | PP(pp_return) |
| 1351 | { |
| 1352 | dSP; dMARK; |
| 1353 | I32 cxix; |
| 1354 | register CONTEXT *cx; |
| 1355 | I32 gimme; |
| 1356 | SV **newsp; |
| 1357 | PMOP *newpm; |
| 1358 | I32 optype = 0; |
| 1359 | |
| 1360 | if (stack == sortstack) { |
| 1361 | if (cxstack_ix == sortcxix || dopoptosub(cxstack_ix) < sortcxix) { |
| 16d20bd9 |
1362 | if (cxstack_ix > sortcxix) |
| 1363 | dounwind(sortcxix); |
| a0d0e21e |
1364 | AvARRAY(stack)[1] = *SP; |
| 1365 | stack_sp = stack_base + 1; |
| 1366 | return 0; |
| 1367 | } |
| 1368 | } |
| 1369 | |
| 1370 | cxix = dopoptosub(cxstack_ix); |
| 1371 | if (cxix < 0) |
| 1372 | DIE("Can't return outside a subroutine"); |
| 1373 | if (cxix < cxstack_ix) |
| 1374 | dounwind(cxix); |
| 1375 | |
| 1376 | POPBLOCK(cx,newpm); |
| 1377 | switch (cx->cx_type) { |
| 1378 | case CXt_SUB: |
| 1379 | POPSUB(cx); |
| 1380 | break; |
| 1381 | case CXt_EVAL: |
| 1382 | POPEVAL(cx); |
| 748a9306 |
1383 | if (optype == OP_REQUIRE && |
| 1384 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) |
| 1385 | { |
| 1386 | char *name = cx->blk_eval.old_name; |
| 1387 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
| 1388 | DIE("%s did not return a true value", name); |
| 1389 | } |
| a0d0e21e |
1390 | break; |
| 1391 | default: |
| 1392 | DIE("panic: return"); |
| 1393 | break; |
| 1394 | } |
| 1395 | |
| 1396 | if (gimme == G_SCALAR) { |
| 1397 | if (MARK < SP) |
| 1398 | *++newsp = sv_mortalcopy(*SP); |
| 1399 | else |
| 1400 | *++newsp = &sv_undef; |
| a0d0e21e |
1401 | } |
| 1402 | else { |
| a0d0e21e |
1403 | while (MARK < SP) |
| 1404 | *++newsp = sv_mortalcopy(*++MARK); |
| 1405 | } |
| 1406 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 1407 | stack_sp = newsp; |
| 1408 | |
| 1409 | LEAVE; |
| 1410 | return pop_return(); |
| 1411 | } |
| 1412 | |
| 1413 | PP(pp_last) |
| 1414 | { |
| 1415 | dSP; |
| 1416 | I32 cxix; |
| 1417 | register CONTEXT *cx; |
| 1418 | I32 gimme; |
| 1419 | I32 optype; |
| 1420 | OP *nextop; |
| 1421 | SV **newsp; |
| 1422 | PMOP *newpm; |
| 1423 | SV **mark = stack_base + cxstack[cxstack_ix].blk_oldsp; |
| a0d0e21e |
1424 | |
| 1425 | if (op->op_flags & OPf_SPECIAL) { |
| 1426 | cxix = dopoptoloop(cxstack_ix); |
| 1427 | if (cxix < 0) |
| 1428 | DIE("Can't \"last\" outside a block"); |
| 1429 | } |
| 1430 | else { |
| 1431 | cxix = dopoptolabel(cPVOP->op_pv); |
| 1432 | if (cxix < 0) |
| 1433 | DIE("Label not found for \"last %s\"", cPVOP->op_pv); |
| 1434 | } |
| 1435 | if (cxix < cxstack_ix) |
| 1436 | dounwind(cxix); |
| 1437 | |
| 1438 | POPBLOCK(cx,newpm); |
| 1439 | switch (cx->cx_type) { |
| 1440 | case CXt_LOOP: |
| 1441 | POPLOOP(cx); |
| 1442 | nextop = cx->blk_loop.last_op->op_next; |
| 1443 | LEAVE; |
| 1444 | break; |
| 1445 | case CXt_EVAL: |
| 1446 | POPEVAL(cx); |
| 1447 | nextop = pop_return(); |
| 1448 | break; |
| 1449 | case CXt_SUB: |
| 1450 | POPSUB(cx); |
| 1451 | nextop = pop_return(); |
| 1452 | break; |
| 1453 | default: |
| 1454 | DIE("panic: last"); |
| 1455 | break; |
| 1456 | } |
| 1457 | |
| 1458 | if (gimme == G_SCALAR) { |
| 1459 | if (mark < SP) |
| 1460 | *++newsp = sv_mortalcopy(*SP); |
| 1461 | else |
| 1462 | *++newsp = &sv_undef; |
| 1463 | } |
| 1464 | else { |
| 1465 | while (mark < SP) |
| 1466 | *++newsp = sv_mortalcopy(*++mark); |
| 1467 | } |
| 1468 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 1469 | sp = newsp; |
| 1470 | |
| 1471 | LEAVE; |
| 1472 | RETURNOP(nextop); |
| 1473 | } |
| 1474 | |
| 1475 | PP(pp_next) |
| 1476 | { |
| 1477 | I32 cxix; |
| 1478 | register CONTEXT *cx; |
| 1479 | I32 oldsave; |
| 1480 | |
| 1481 | if (op->op_flags & OPf_SPECIAL) { |
| 1482 | cxix = dopoptoloop(cxstack_ix); |
| 1483 | if (cxix < 0) |
| 1484 | DIE("Can't \"next\" outside a block"); |
| 1485 | } |
| 1486 | else { |
| 1487 | cxix = dopoptolabel(cPVOP->op_pv); |
| 1488 | if (cxix < 0) |
| 1489 | DIE("Label not found for \"next %s\"", cPVOP->op_pv); |
| 1490 | } |
| 1491 | if (cxix < cxstack_ix) |
| 1492 | dounwind(cxix); |
| 1493 | |
| 1494 | TOPBLOCK(cx); |
| 1495 | oldsave = scopestack[scopestack_ix - 1]; |
| 1496 | LEAVE_SCOPE(oldsave); |
| 1497 | return cx->blk_loop.next_op; |
| 1498 | } |
| 1499 | |
| 1500 | PP(pp_redo) |
| 1501 | { |
| 1502 | I32 cxix; |
| 1503 | register CONTEXT *cx; |
| 1504 | I32 oldsave; |
| 1505 | |
| 1506 | if (op->op_flags & OPf_SPECIAL) { |
| 1507 | cxix = dopoptoloop(cxstack_ix); |
| 1508 | if (cxix < 0) |
| 1509 | DIE("Can't \"redo\" outside a block"); |
| 1510 | } |
| 1511 | else { |
| 1512 | cxix = dopoptolabel(cPVOP->op_pv); |
| 1513 | if (cxix < 0) |
| 1514 | DIE("Label not found for \"redo %s\"", cPVOP->op_pv); |
| 1515 | } |
| 1516 | if (cxix < cxstack_ix) |
| 1517 | dounwind(cxix); |
| 1518 | |
| 1519 | TOPBLOCK(cx); |
| 1520 | oldsave = scopestack[scopestack_ix - 1]; |
| 1521 | LEAVE_SCOPE(oldsave); |
| 1522 | return cx->blk_loop.redo_op; |
| 1523 | } |
| 1524 | |
| 1525 | static OP* lastgotoprobe; |
| 1526 | |
| 1527 | static OP * |
| 1528 | dofindlabel(op,label,opstack) |
| 1529 | OP *op; |
| 1530 | char *label; |
| 1531 | OP **opstack; |
| 1532 | { |
| 1533 | OP *kid; |
| 1534 | OP **ops = opstack; |
| 1535 | |
| 1536 | if (op->op_type == OP_LEAVE || |
| 1537 | op->op_type == OP_SCOPE || |
| 1538 | op->op_type == OP_LEAVELOOP || |
| 1539 | op->op_type == OP_LEAVETRY) |
| 1540 | *ops++ = cUNOP->op_first; |
| 1541 | *ops = 0; |
| 1542 | if (op->op_flags & OPf_KIDS) { |
| 1543 | /* First try all the kids at this level, since that's likeliest. */ |
| 1544 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
| 1545 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
| 1546 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) |
| 1547 | return kid; |
| 1548 | } |
| 1549 | for (kid = cUNOP->op_first; kid; kid = kid->op_sibling) { |
| 1550 | if (kid == lastgotoprobe) |
| 1551 | continue; |
| 1552 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
| 1553 | if (ops > opstack && |
| 1554 | (ops[-1]->op_type == OP_NEXTSTATE || |
| 1555 | ops[-1]->op_type == OP_DBSTATE)) |
| 1556 | *ops = kid; |
| 1557 | else |
| 1558 | *ops++ = kid; |
| 1559 | } |
| 1560 | if (op = dofindlabel(kid,label,ops)) |
| 1561 | return op; |
| 1562 | } |
| 1563 | } |
| 1564 | *ops = 0; |
| 1565 | return 0; |
| 1566 | } |
| 1567 | |
| 1568 | PP(pp_dump) |
| 1569 | { |
| 1570 | return pp_goto(ARGS); |
| 1571 | /*NOTREACHED*/ |
| 1572 | } |
| 1573 | |
| 1574 | PP(pp_goto) |
| 1575 | { |
| 1576 | dSP; |
| 1577 | OP *retop = 0; |
| 1578 | I32 ix; |
| 1579 | register CONTEXT *cx; |
| 1580 | OP *enterops[64]; |
| 1581 | char *label; |
| 1582 | int do_dump = (op->op_type == OP_DUMP); |
| 1583 | |
| 1584 | label = 0; |
| 1585 | if (op->op_flags & OPf_STACKED) { |
| 1586 | SV *sv = POPs; |
| 1587 | |
| 1588 | /* This egregious kludge implements goto &subroutine */ |
| 1589 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { |
| 1590 | I32 cxix; |
| 1591 | register CONTEXT *cx; |
| 1592 | CV* cv = (CV*)SvRV(sv); |
| 1593 | SV** mark; |
| 1594 | I32 items = 0; |
| 1595 | I32 oldsave; |
| 1596 | |
| 4aa0a1f7 |
1597 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
| 1598 | if (CvGV(cv)) { |
| 1599 | SV *tmpstr = sv_newmortal(); |
| 1600 | gv_efullname(tmpstr, CvGV(cv)); |
| 1601 | DIE("Goto undefined subroutine &%s",SvPVX(tmpstr)); |
| 1602 | } |
| 1603 | DIE("Goto undefined subroutine"); |
| 1604 | } |
| 1605 | |
| a0d0e21e |
1606 | /* First do some returnish stuff. */ |
| 1607 | cxix = dopoptosub(cxstack_ix); |
| 1608 | if (cxix < 0) |
| 1609 | DIE("Can't goto subroutine outside a subroutine"); |
| 1610 | if (cxix < cxstack_ix) |
| 1611 | dounwind(cxix); |
| 1612 | TOPBLOCK(cx); |
| 1613 | mark = stack_sp; |
| 1614 | if (cx->blk_sub.hasargs) { /* put @_ back onto stack */ |
| 1615 | AV* av = cx->blk_sub.argarray; |
| 1616 | |
| 1617 | items = AvFILL(av) + 1; |
| 1618 | Copy(AvARRAY(av), ++stack_sp, items, SV*); |
| 1619 | stack_sp += items; |
| 1620 | GvAV(defgv) = cx->blk_sub.savearray; |
| a0d0e21e |
1621 | AvREAL_off(av); |
| 4633a7c4 |
1622 | av_clear(av); |
| a0d0e21e |
1623 | } |
| 1624 | if (!(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
| 1625 | SvREFCNT_dec(cx->blk_sub.cv); |
| 1626 | oldsave = scopestack[scopestack_ix - 1]; |
| 1627 | LEAVE_SCOPE(oldsave); |
| 1628 | |
| 1629 | /* Now do some callish stuff. */ |
| 1630 | SAVETMPS; |
| 1631 | if (CvXSUB(cv)) { |
| 1632 | if (CvOLDSTYLE(cv)) { |
| ecfc5424 |
1633 | I32 (*fp3)_((int,int,int)); |
| a0d0e21e |
1634 | while (sp > mark) { |
| 1635 | sp[1] = sp[0]; |
| 1636 | sp--; |
| 1637 | } |
| ecfc5424 |
1638 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
| 1639 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
| 1640 | mark - stack_base + 1, |
| 1641 | items); |
| a0d0e21e |
1642 | sp = stack_base + items; |
| 1643 | } |
| 1644 | else { |
| 1645 | (void)(*CvXSUB(cv))(cv); |
| 1646 | } |
| 1647 | LEAVE; |
| 1648 | return pop_return(); |
| 1649 | } |
| 1650 | else { |
| 1651 | AV* padlist = CvPADLIST(cv); |
| 1652 | SV** svp = AvARRAY(padlist); |
| 1653 | cx->blk_sub.cv = cv; |
| 1654 | cx->blk_sub.olddepth = CvDEPTH(cv); |
| 1655 | CvDEPTH(cv)++; |
| 1656 | if (CvDEPTH(cv) < 2) |
| 1657 | (void)SvREFCNT_inc(cv); |
| 1658 | else { /* save temporaries on recursion? */ |
| 1659 | if (CvDEPTH(cv) == 100 && dowarn) |
| 1660 | warn("Deep recursion on subroutine \"%s\"", |
| 1661 | GvENAME(CvGV(cv))); |
| 1662 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
| 1663 | AV *newpad = newAV(); |
| 4aa0a1f7 |
1664 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
| a0d0e21e |
1665 | I32 ix = AvFILL((AV*)svp[1]); |
| 1666 | svp = AvARRAY(svp[0]); |
| 748a9306 |
1667 | for ( ;ix > 0; ix--) { |
| a0d0e21e |
1668 | if (svp[ix] != &sv_undef) { |
| 748a9306 |
1669 | char *name = SvPVX(svp[ix]); |
| 1670 | if (SvFLAGS(svp[ix]) & SVf_FAKE) { |
| 1671 | /* outer lexical? */ |
| 1672 | av_store(newpad, ix, |
| 4aa0a1f7 |
1673 | SvREFCNT_inc(oldpad[ix]) ); |
| 748a9306 |
1674 | } |
| 1675 | else { /* our own lexical */ |
| 1676 | if (*name == '@') |
| 1677 | av_store(newpad, ix, sv = (SV*)newAV()); |
| 1678 | else if (*name == '%') |
| 1679 | av_store(newpad, ix, sv = (SV*)newHV()); |
| 1680 | else |
| 1681 | av_store(newpad, ix, sv = NEWSV(0,0)); |
| 1682 | SvPADMY_on(sv); |
| 1683 | } |
| a0d0e21e |
1684 | } |
| 1685 | else { |
| 748a9306 |
1686 | av_store(newpad, ix, sv = NEWSV(0,0)); |
| a0d0e21e |
1687 | SvPADTMP_on(sv); |
| 1688 | } |
| 1689 | } |
| 1690 | if (cx->blk_sub.hasargs) { |
| 1691 | AV* av = newAV(); |
| 1692 | av_extend(av, 0); |
| 1693 | av_store(newpad, 0, (SV*)av); |
| 1694 | AvFLAGS(av) = AVf_REIFY; |
| 1695 | } |
| 1696 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
| 1697 | AvFILL(padlist) = CvDEPTH(cv); |
| 1698 | svp = AvARRAY(padlist); |
| 1699 | } |
| 1700 | } |
| 1701 | SAVESPTR(curpad); |
| 1702 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
| 1703 | if (cx->blk_sub.hasargs) { |
| 1704 | AV* av = (AV*)curpad[0]; |
| 1705 | SV** ary; |
| 1706 | |
| 1707 | cx->blk_sub.savearray = GvAV(defgv); |
| 1708 | cx->blk_sub.argarray = av; |
| 1709 | GvAV(defgv) = cx->blk_sub.argarray; |
| 1710 | ++mark; |
| 1711 | |
| 1712 | if (items >= AvMAX(av) + 1) { |
| 1713 | ary = AvALLOC(av); |
| 1714 | if (AvARRAY(av) != ary) { |
| 1715 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
| 1716 | SvPVX(av) = (char*)ary; |
| 1717 | } |
| 1718 | if (items >= AvMAX(av) + 1) { |
| 1719 | AvMAX(av) = items - 1; |
| 1720 | Renew(ary,items+1,SV*); |
| 1721 | AvALLOC(av) = ary; |
| 1722 | SvPVX(av) = (char*)ary; |
| 1723 | } |
| 1724 | } |
| 1725 | Copy(mark,AvARRAY(av),items,SV*); |
| 1726 | AvFILL(av) = items - 1; |
| 1727 | |
| 1728 | while (items--) { |
| 1729 | if (*mark) |
| 1730 | SvTEMP_off(*mark); |
| 1731 | mark++; |
| 1732 | } |
| 1733 | } |
| 1734 | RETURNOP(CvSTART(cv)); |
| 1735 | } |
| 1736 | } |
| 1737 | else |
| 1738 | label = SvPV(sv,na); |
| 1739 | } |
| 1740 | else if (op->op_flags & OPf_SPECIAL) { |
| 1741 | if (! do_dump) |
| 1742 | DIE("goto must have label"); |
| 1743 | } |
| 1744 | else |
| 1745 | label = cPVOP->op_pv; |
| 1746 | |
| 1747 | if (label && *label) { |
| 1748 | OP *gotoprobe = 0; |
| 1749 | |
| 1750 | /* find label */ |
| 1751 | |
| 1752 | lastgotoprobe = 0; |
| 1753 | *enterops = 0; |
| 1754 | for (ix = cxstack_ix; ix >= 0; ix--) { |
| 1755 | cx = &cxstack[ix]; |
| 1756 | switch (cx->cx_type) { |
| 1757 | case CXt_SUB: |
| 1758 | gotoprobe = CvROOT(cx->blk_sub.cv); |
| 1759 | break; |
| 1760 | case CXt_EVAL: |
| 1761 | gotoprobe = eval_root; /* XXX not good for nested eval */ |
| 1762 | break; |
| 1763 | case CXt_LOOP: |
| 1764 | gotoprobe = cx->blk_oldcop->op_sibling; |
| 1765 | break; |
| 1766 | case CXt_SUBST: |
| 1767 | continue; |
| 1768 | case CXt_BLOCK: |
| 1769 | if (ix) |
| 1770 | gotoprobe = cx->blk_oldcop->op_sibling; |
| 1771 | else |
| 1772 | gotoprobe = main_root; |
| 1773 | break; |
| 1774 | default: |
| 1775 | if (ix) |
| 1776 | DIE("panic: goto"); |
| 1777 | else |
| 1778 | gotoprobe = main_root; |
| 1779 | break; |
| 1780 | } |
| 1781 | retop = dofindlabel(gotoprobe, label, enterops); |
| 1782 | if (retop) |
| 1783 | break; |
| 1784 | lastgotoprobe = gotoprobe; |
| 1785 | } |
| 1786 | if (!retop) |
| 1787 | DIE("Can't find label %s", label); |
| 1788 | |
| 1789 | /* pop unwanted frames */ |
| 1790 | |
| 1791 | if (ix < cxstack_ix) { |
| 1792 | I32 oldsave; |
| 1793 | |
| 1794 | if (ix < 0) |
| 1795 | ix = 0; |
| 1796 | dounwind(ix); |
| 1797 | TOPBLOCK(cx); |
| 1798 | oldsave = scopestack[scopestack_ix]; |
| 1799 | LEAVE_SCOPE(oldsave); |
| 1800 | } |
| 1801 | |
| 1802 | /* push wanted frames */ |
| 1803 | |
| 748a9306 |
1804 | if (*enterops && enterops[1]) { |
| a0d0e21e |
1805 | OP *oldop = op; |
| 748a9306 |
1806 | for (ix = 1; enterops[ix]; ix++) { |
| a0d0e21e |
1807 | op = enterops[ix]; |
| 1808 | (*op->op_ppaddr)(); |
| 1809 | } |
| 1810 | op = oldop; |
| 1811 | } |
| 1812 | } |
| 1813 | |
| 1814 | if (do_dump) { |
| 1815 | restartop = retop; |
| 1816 | do_undump = TRUE; |
| 1817 | |
| 1818 | my_unexec(); |
| 1819 | |
| 1820 | restartop = 0; /* hmm, must be GNU unexec().. */ |
| 1821 | do_undump = FALSE; |
| 1822 | } |
| 1823 | |
| 748a9306 |
1824 | if (stack == signalstack) { |
| 1825 | restartop = retop; |
| 1826 | longjmp(top_env, 3); |
| 1827 | } |
| 1828 | |
| a0d0e21e |
1829 | RETURNOP(retop); |
| 1830 | } |
| 1831 | |
| 1832 | PP(pp_exit) |
| 1833 | { |
| 1834 | dSP; |
| 1835 | I32 anum; |
| 1836 | |
| 1837 | if (MAXARG < 1) |
| 1838 | anum = 0; |
| 1839 | else |
| 1840 | anum = SvIVx(POPs); |
| 1841 | my_exit(anum); |
| 1842 | PUSHs(&sv_undef); |
| 1843 | RETURN; |
| 1844 | } |
| 1845 | |
| 1846 | #ifdef NOTYET |
| 1847 | PP(pp_nswitch) |
| 1848 | { |
| 1849 | dSP; |
| 1850 | double value = SvNVx(GvSV(cCOP->cop_gv)); |
| 1851 | register I32 match = I_32(value); |
| 1852 | |
| 1853 | if (value < 0.0) { |
| 1854 | if (((double)match) > value) |
| 1855 | --match; /* was fractional--truncate other way */ |
| 1856 | } |
| 1857 | match -= cCOP->uop.scop.scop_offset; |
| 1858 | if (match < 0) |
| 1859 | match = 0; |
| 1860 | else if (match > cCOP->uop.scop.scop_max) |
| 1861 | match = cCOP->uop.scop.scop_max; |
| 1862 | op = cCOP->uop.scop.scop_next[match]; |
| 1863 | RETURNOP(op); |
| 1864 | } |
| 1865 | |
| 1866 | PP(pp_cswitch) |
| 1867 | { |
| 1868 | dSP; |
| 1869 | register I32 match; |
| 1870 | |
| 1871 | if (multiline) |
| 1872 | op = op->op_next; /* can't assume anything */ |
| 1873 | else { |
| 1874 | match = *(SvPVx(GvSV(cCOP->cop_gv), na)) & 255; |
| 1875 | match -= cCOP->uop.scop.scop_offset; |
| 1876 | if (match < 0) |
| 1877 | match = 0; |
| 1878 | else if (match > cCOP->uop.scop.scop_max) |
| 1879 | match = cCOP->uop.scop.scop_max; |
| 1880 | op = cCOP->uop.scop.scop_next[match]; |
| 1881 | } |
| 1882 | RETURNOP(op); |
| 1883 | } |
| 1884 | #endif |
| 1885 | |
| 1886 | /* Eval. */ |
| 1887 | |
| 1888 | static void |
| 1889 | save_lines(array, sv) |
| 1890 | AV *array; |
| 1891 | SV *sv; |
| 1892 | { |
| 1893 | register char *s = SvPVX(sv); |
| 1894 | register char *send = SvPVX(sv) + SvCUR(sv); |
| 1895 | register char *t; |
| 1896 | register I32 line = 1; |
| 1897 | |
| 1898 | while (s && s < send) { |
| 1899 | SV *tmpstr = NEWSV(85,0); |
| 1900 | |
| 1901 | sv_upgrade(tmpstr, SVt_PVMG); |
| 1902 | t = strchr(s, '\n'); |
| 1903 | if (t) |
| 1904 | t++; |
| 1905 | else |
| 1906 | t = send; |
| 1907 | |
| 1908 | sv_setpvn(tmpstr, s, t - s); |
| 1909 | av_store(array, line++, tmpstr); |
| 1910 | s = t; |
| 1911 | } |
| 1912 | } |
| 1913 | |
| 1914 | static OP * |
| 1915 | doeval(gimme) |
| 1916 | int gimme; |
| 1917 | { |
| 1918 | dSP; |
| 1919 | OP *saveop = op; |
| 1920 | HV *newstash; |
| 748a9306 |
1921 | AV* comppadlist; |
| a0d0e21e |
1922 | |
| 1923 | in_eval = 1; |
| 1924 | |
| 1925 | /* set up a scratch pad */ |
| 1926 | |
| 1927 | SAVEINT(padix); |
| 1928 | SAVESPTR(curpad); |
| 1929 | SAVESPTR(comppad); |
| 1930 | SAVESPTR(comppad_name); |
| 1931 | SAVEINT(comppad_name_fill); |
| 1932 | SAVEINT(min_intro_pending); |
| 1933 | SAVEINT(max_intro_pending); |
| 748a9306 |
1934 | |
| 1935 | SAVESPTR(compcv); |
| 1936 | compcv = (CV*)NEWSV(1104,0); |
| 1937 | sv_upgrade((SV *)compcv, SVt_PVCV); |
| 1938 | |
| a0d0e21e |
1939 | comppad = newAV(); |
| 1940 | comppad_name = newAV(); |
| 1941 | comppad_name_fill = 0; |
| 1942 | min_intro_pending = 0; |
| 1943 | av_push(comppad, Nullsv); |
| 1944 | curpad = AvARRAY(comppad); |
| 1945 | padix = 0; |
| 1946 | |
| 748a9306 |
1947 | comppadlist = newAV(); |
| 1948 | AvREAL_off(comppadlist); |
| 8e07c86e |
1949 | av_store(comppadlist, 0, (SV*)comppad_name); |
| 1950 | av_store(comppadlist, 1, (SV*)comppad); |
| 748a9306 |
1951 | CvPADLIST(compcv) = comppadlist; |
| 8e07c86e |
1952 | SAVEFREESV(compcv); |
| 748a9306 |
1953 | |
| a0d0e21e |
1954 | /* make sure we compile in the right package */ |
| 1955 | |
| 1956 | newstash = curcop->cop_stash; |
| 1957 | if (curstash != newstash) { |
| 1958 | SAVESPTR(curstash); |
| 1959 | curstash = newstash; |
| 1960 | } |
| 1961 | SAVESPTR(beginav); |
| 1962 | beginav = newAV(); |
| 1963 | SAVEFREESV(beginav); |
| 1964 | |
| 1965 | /* try to compile it */ |
| 1966 | |
| 1967 | eval_root = Nullop; |
| 1968 | error_count = 0; |
| 1969 | curcop = &compiling; |
| 1970 | curcop->cop_arybase = 0; |
| 1971 | rs = "\n"; |
| 1972 | rslen = 1; |
| 1973 | rschar = '\n'; |
| 1974 | rspara = 0; |
| 4633a7c4 |
1975 | sv_setpv(GvSV(errgv),""); |
| a0d0e21e |
1976 | if (yyparse() || error_count || !eval_root) { |
| 1977 | SV **newsp; |
| 1978 | I32 gimme; |
| 1979 | CONTEXT *cx; |
| 1980 | I32 optype; |
| 1981 | |
| 1982 | op = saveop; |
| 1983 | if (eval_root) { |
| 1984 | op_free(eval_root); |
| 1985 | eval_root = Nullop; |
| 1986 | } |
| 1987 | POPBLOCK(cx,curpm); |
| 1988 | POPEVAL(cx); |
| 1989 | pop_return(); |
| 1990 | lex_end(); |
| 1991 | LEAVE; |
| 1992 | if (optype == OP_REQUIRE) |
| 4633a7c4 |
1993 | DIE("%s", SvPVx(GvSV(errgv), na)); |
| a0d0e21e |
1994 | rs = nrs; |
| 1995 | rslen = nrslen; |
| 1996 | rschar = nrschar; |
| 1997 | rspara = (nrslen == 2); |
| 1998 | RETPUSHUNDEF; |
| 1999 | } |
| 2000 | rs = nrs; |
| 2001 | rslen = nrslen; |
| 2002 | rschar = nrschar; |
| 2003 | rspara = (nrslen == 2); |
| 2004 | compiling.cop_line = 0; |
| a0d0e21e |
2005 | SAVEFREEOP(eval_root); |
| 2006 | if (gimme & G_ARRAY) |
| 2007 | list(eval_root); |
| 2008 | else |
| 2009 | scalar(eval_root); |
| 2010 | |
| 2011 | DEBUG_x(dump_eval()); |
| 2012 | |
| 2013 | /* compiled okay, so do it */ |
| 2014 | |
| 2015 | RETURNOP(eval_start); |
| 2016 | } |
| 2017 | |
| 2018 | PP(pp_require) |
| 2019 | { |
| 2020 | dSP; |
| 2021 | register CONTEXT *cx; |
| 2022 | SV *sv; |
| 2023 | char *name; |
| 2024 | char *tmpname; |
| 2025 | SV** svp; |
| 2026 | I32 gimme = G_SCALAR; |
| 2027 | FILE *tryrsfp = 0; |
| 2028 | |
| 2029 | sv = POPs; |
| 4633a7c4 |
2030 | if (SvNIOKp(sv) && !SvPOKp(sv)) { |
| a0d0e21e |
2031 | if (atof(patchlevel) + 0.000999 < SvNV(sv)) |
| 2032 | DIE("Perl %3.3f required--this is only version %s, stopped", |
| 2033 | SvNV(sv),patchlevel); |
| 2034 | RETPUSHYES; |
| 2035 | } |
| 2036 | name = SvPV(sv, na); |
| 2037 | if (!*name) |
| 2038 | DIE("Null filename used"); |
| 4633a7c4 |
2039 | TAINT_PROPER("require"); |
| a0d0e21e |
2040 | if (op->op_type == OP_REQUIRE && |
| 2041 | (svp = hv_fetch(GvHVn(incgv), name, SvCUR(sv), 0)) && |
| 2042 | *svp != &sv_undef) |
| 2043 | RETPUSHYES; |
| 2044 | |
| 2045 | /* prepare to compile file */ |
| 2046 | |
| 2047 | tmpname = savepv(name); |
| 2048 | if (*tmpname == '/' || |
| 2049 | (*tmpname == '.' && |
| 2050 | (tmpname[1] == '/' || |
| 748a9306 |
2051 | (tmpname[1] == '.' && tmpname[2] == '/'))) |
| 4633a7c4 |
2052 | #ifdef DOSISH |
| 2053 | || (tmpname[0] && tmpname[1] == ':') |
| 2054 | #endif |
| 748a9306 |
2055 | #ifdef VMS |
| 4633a7c4 |
2056 | || (strchr(tmpname,':') || ((*tmpname == '[' || *tmpname == '<') && |
| 2057 | (tmpname[1] == '-' || tmpname[1] == ']' || tmpname[1] == '>'))) |
| 748a9306 |
2058 | #endif |
| 2059 | ) |
| a0d0e21e |
2060 | { |
| 2061 | tryrsfp = fopen(tmpname,"r"); |
| 2062 | } |
| 2063 | else { |
| 2064 | AV *ar = GvAVn(incgv); |
| 2065 | I32 i; |
| 2066 | |
| 2067 | for (i = 0; i <= AvFILL(ar); i++) { |
| 748a9306 |
2068 | #ifdef VMS |
| 2069 | if (tounixpath_ts(SvPVx(*av_fetch(ar, i, TRUE), na),buf) == NULL) |
| 4633a7c4 |
2070 | continue; |
| 2071 | strcat(buf,name); |
| 748a9306 |
2072 | #else |
| a0d0e21e |
2073 | (void)sprintf(buf, "%s/%s", |
| 2074 | SvPVx(*av_fetch(ar, i, TRUE), na), name); |
| 748a9306 |
2075 | #endif |
| a0d0e21e |
2076 | tryrsfp = fopen(buf, "r"); |
| 2077 | if (tryrsfp) { |
| 2078 | char *s = buf; |
| 2079 | |
| 2080 | if (*s == '.' && s[1] == '/') |
| 2081 | s += 2; |
| 2082 | Safefree(tmpname); |
| 2083 | tmpname = savepv(s); |
| 2084 | break; |
| 2085 | } |
| 2086 | } |
| 2087 | } |
| 2088 | SAVESPTR(compiling.cop_filegv); |
| 2089 | compiling.cop_filegv = gv_fetchfile(tmpname); |
| 2090 | Safefree(tmpname); |
| 2091 | tmpname = Nullch; |
| 2092 | if (!tryrsfp) { |
| 2093 | if (op->op_type == OP_REQUIRE) { |
| 2094 | sprintf(tokenbuf,"Can't locate %s in @INC", name); |
| 2095 | if (instr(tokenbuf,".h ")) |
| 2096 | strcat(tokenbuf," (change .h to .ph maybe?)"); |
| 2097 | if (instr(tokenbuf,".ph ")) |
| 2098 | strcat(tokenbuf," (did you run h2ph?)"); |
| 2099 | DIE("%s",tokenbuf); |
| 2100 | } |
| 2101 | |
| 2102 | RETPUSHUNDEF; |
| 2103 | } |
| 2104 | |
| 2105 | /* Assume success here to prevent recursive requirement. */ |
| 2106 | (void)hv_store(GvHVn(incgv), name, strlen(name), |
| 2107 | newSVsv(GvSV(compiling.cop_filegv)), 0 ); |
| 2108 | |
| 2109 | ENTER; |
| 2110 | SAVETMPS; |
| 2111 | lex_start(sv_2mortal(newSVpv("",0))); |
| e50aee73 |
2112 | if (rsfp_filters){ |
| 2113 | save_aptr(&rsfp_filters); |
| 2114 | rsfp_filters = NULL; |
| 2115 | } |
| 2116 | |
| a0d0e21e |
2117 | rsfp = tryrsfp; |
| 2118 | name = savepv(name); |
| 2119 | SAVEFREEPV(name); |
| 2120 | SAVEI32(hints); |
| 2121 | hints = 0; |
| 2122 | |
| 2123 | /* switch to eval mode */ |
| 2124 | |
| 2125 | push_return(op->op_next); |
| 2126 | PUSHBLOCK(cx, CXt_EVAL, SP); |
| 2127 | PUSHEVAL(cx, name, compiling.cop_filegv); |
| 2128 | |
| 2129 | compiling.cop_line = 0; |
| 2130 | |
| 2131 | PUTBACK; |
| 2132 | return doeval(G_SCALAR); |
| 2133 | } |
| 2134 | |
| 2135 | PP(pp_dofile) |
| 2136 | { |
| 2137 | return pp_require(ARGS); |
| 2138 | } |
| 2139 | |
| 2140 | PP(pp_entereval) |
| 2141 | { |
| 2142 | dSP; |
| 2143 | register CONTEXT *cx; |
| 2144 | dPOPss; |
| 2145 | I32 gimme = GIMME; |
| 2146 | char tmpbuf[32]; |
| 2147 | STRLEN len; |
| 2148 | |
| 2149 | if (!SvPV(sv,len) || !len) |
| 2150 | RETPUSHUNDEF; |
| 748a9306 |
2151 | TAINT_PROPER("eval"); |
| a0d0e21e |
2152 | |
| 2153 | ENTER; |
| a0d0e21e |
2154 | lex_start(sv); |
| 748a9306 |
2155 | SAVETMPS; |
| a0d0e21e |
2156 | |
| 2157 | /* switch to eval mode */ |
| 2158 | |
| 748a9306 |
2159 | SAVESPTR(compiling.cop_filegv); |
| a0d0e21e |
2160 | sprintf(tmpbuf, "_<(eval %d)", ++evalseq); |
| 2161 | compiling.cop_filegv = gv_fetchfile(tmpbuf+2); |
| 2162 | compiling.cop_line = 1; |
| 2163 | SAVEDELETE(defstash, savepv(tmpbuf), strlen(tmpbuf)); |
| 2164 | SAVEI32(hints); |
| 2165 | hints = op->op_targ; |
| 2166 | |
| 2167 | push_return(op->op_next); |
| 2168 | PUSHBLOCK(cx, CXt_EVAL, SP); |
| 2169 | PUSHEVAL(cx, 0, compiling.cop_filegv); |
| 2170 | |
| 2171 | /* prepare to compile string */ |
| 2172 | |
| 2173 | if (perldb && curstash != debstash) |
| 2174 | save_lines(GvAV(compiling.cop_filegv), linestr); |
| 2175 | PUTBACK; |
| 2176 | return doeval(gimme); |
| 2177 | } |
| 2178 | |
| 2179 | PP(pp_leaveeval) |
| 2180 | { |
| 2181 | dSP; |
| 2182 | register SV **mark; |
| 2183 | SV **newsp; |
| 2184 | PMOP *newpm; |
| 2185 | I32 gimme; |
| 2186 | register CONTEXT *cx; |
| 2187 | OP *retop; |
| 2188 | I32 optype; |
| 2189 | |
| 2190 | POPBLOCK(cx,newpm); |
| 2191 | POPEVAL(cx); |
| 2192 | retop = pop_return(); |
| 2193 | |
| 2194 | if (gimme == G_SCALAR) { |
| 2195 | if (op->op_private & OPpLEAVE_VOID) |
| 2196 | MARK = newsp; |
| 2197 | else { |
| 2198 | MARK = newsp + 1; |
| 2199 | if (MARK <= SP) { |
| 2200 | if (SvFLAGS(TOPs) & SVs_TEMP) |
| 2201 | *MARK = TOPs; |
| 2202 | else |
| 2203 | *MARK = sv_mortalcopy(TOPs); |
| 2204 | } |
| 2205 | else { |
| 2206 | MEXTEND(mark,0); |
| 2207 | *MARK = &sv_undef; |
| 2208 | } |
| 2209 | } |
| 2210 | SP = MARK; |
| 2211 | } |
| 2212 | else { |
| 2213 | for (mark = newsp + 1; mark <= SP; mark++) |
| 2214 | if (!(SvFLAGS(TOPs) & SVs_TEMP)) |
| 2215 | *mark = sv_mortalcopy(*mark); |
| 2216 | /* in case LEAVE wipes old return values */ |
| 2217 | } |
| 2218 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 2219 | |
| 2220 | if (optype != OP_ENTEREVAL) { |
| 2221 | char *name = cx->blk_eval.old_name; |
| 2222 | |
| 2223 | if (!(gimme == G_SCALAR ? SvTRUE(*sp) : sp > newsp)) { |
| 2224 | /* Unassume the success we assumed earlier. */ |
| 748a9306 |
2225 | (void)hv_delete(GvHVn(incgv), name, strlen(name), G_DISCARD); |
| a0d0e21e |
2226 | |
| 2227 | if (optype == OP_REQUIRE) |
| 2228 | retop = die("%s did not return a true value", name); |
| 2229 | } |
| 2230 | } |
| 2231 | |
| 2232 | lex_end(); |
| 2233 | LEAVE; |
| 4633a7c4 |
2234 | sv_setpv(GvSV(errgv),""); |
| a0d0e21e |
2235 | |
| 2236 | RETURNOP(retop); |
| 2237 | } |
| 2238 | |
| a0d0e21e |
2239 | PP(pp_entertry) |
| 2240 | { |
| 2241 | dSP; |
| 2242 | register CONTEXT *cx; |
| 2243 | I32 gimme = GIMME; |
| 2244 | |
| 2245 | ENTER; |
| 2246 | SAVETMPS; |
| 2247 | |
| 2248 | push_return(cLOGOP->op_other->op_next); |
| 2249 | PUSHBLOCK(cx, CXt_EVAL, SP); |
| 2250 | PUSHEVAL(cx, 0, 0); |
| 2251 | eval_root = op; /* Only needed so that goto works right. */ |
| 2252 | |
| 2253 | in_eval = 1; |
| 4633a7c4 |
2254 | sv_setpv(GvSV(errgv),""); |
| a0d0e21e |
2255 | RETURN; |
| 2256 | } |
| 2257 | |
| 2258 | PP(pp_leavetry) |
| 2259 | { |
| 2260 | dSP; |
| 2261 | register SV **mark; |
| 2262 | SV **newsp; |
| 2263 | PMOP *newpm; |
| 2264 | I32 gimme; |
| 2265 | register CONTEXT *cx; |
| 2266 | I32 optype; |
| 2267 | |
| 2268 | POPBLOCK(cx,newpm); |
| 2269 | POPEVAL(cx); |
| 2270 | pop_return(); |
| 2271 | |
| 2272 | if (gimme == G_SCALAR) { |
| 2273 | if (op->op_private & OPpLEAVE_VOID) |
| 2274 | MARK = newsp; |
| 2275 | else { |
| 2276 | MARK = newsp + 1; |
| 2277 | if (MARK <= SP) { |
| 2278 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
| 2279 | *MARK = TOPs; |
| 2280 | else |
| 2281 | *MARK = sv_mortalcopy(TOPs); |
| 2282 | } |
| 2283 | else { |
| 2284 | MEXTEND(mark,0); |
| 2285 | *MARK = &sv_undef; |
| 2286 | } |
| 2287 | } |
| 2288 | SP = MARK; |
| 2289 | } |
| 2290 | else { |
| 2291 | for (mark = newsp + 1; mark <= SP; mark++) |
| 2292 | if (!(SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP))) |
| 2293 | *mark = sv_mortalcopy(*mark); |
| 2294 | /* in case LEAVE wipes old return values */ |
| 2295 | } |
| 2296 | curpm = newpm; /* Don't pop $1 et al till now */ |
| 2297 | |
| 2298 | LEAVE; |
| 4633a7c4 |
2299 | sv_setpv(GvSV(errgv),""); |
| a0d0e21e |
2300 | RETURN; |
| 2301 | } |
| 2302 | |
| 2303 | static void |
| 2304 | doparseform(sv) |
| 2305 | SV *sv; |
| 2306 | { |
| 2307 | STRLEN len; |
| 2308 | register char *s = SvPV_force(sv, len); |
| 2309 | register char *send = s + len; |
| 2310 | register char *base; |
| 2311 | register I32 skipspaces = 0; |
| 2312 | bool noblank; |
| 2313 | bool repeat; |
| 2314 | bool postspace = FALSE; |
| 2315 | U16 *fops; |
| 2316 | register U16 *fpc; |
| 2317 | U16 *linepc; |
| 2318 | register I32 arg; |
| 2319 | bool ischop; |
| 2320 | |
| 2321 | New(804, fops, (send - s)*3+2, U16); /* Almost certainly too long... */ |
| 2322 | fpc = fops; |
| 2323 | |
| 2324 | if (s < send) { |
| 2325 | linepc = fpc; |
| 2326 | *fpc++ = FF_LINEMARK; |
| 2327 | noblank = repeat = FALSE; |
| 2328 | base = s; |
| 2329 | } |
| 2330 | |
| 2331 | while (s <= send) { |
| 2332 | switch (*s++) { |
| 2333 | default: |
| 2334 | skipspaces = 0; |
| 2335 | continue; |
| 2336 | |
| 2337 | case '~': |
| 2338 | if (*s == '~') { |
| 2339 | repeat = TRUE; |
| 2340 | *s = ' '; |
| 2341 | } |
| 2342 | noblank = TRUE; |
| 2343 | s[-1] = ' '; |
| 2344 | /* FALL THROUGH */ |
| 2345 | case ' ': case '\t': |
| 2346 | skipspaces++; |
| 2347 | continue; |
| 2348 | |
| 2349 | case '\n': case 0: |
| 2350 | arg = s - base; |
| 2351 | skipspaces++; |
| 2352 | arg -= skipspaces; |
| 2353 | if (arg) { |
| 2354 | if (postspace) { |
| 2355 | *fpc++ = FF_SPACE; |
| 2356 | postspace = FALSE; |
| 2357 | } |
| 2358 | *fpc++ = FF_LITERAL; |
| 2359 | *fpc++ = arg; |
| 2360 | } |
| 2361 | if (s <= send) |
| 2362 | skipspaces--; |
| 2363 | if (skipspaces) { |
| 2364 | *fpc++ = FF_SKIP; |
| 2365 | *fpc++ = skipspaces; |
| 2366 | } |
| 2367 | skipspaces = 0; |
| 2368 | if (s <= send) |
| 2369 | *fpc++ = FF_NEWLINE; |
| 2370 | if (noblank) { |
| 2371 | *fpc++ = FF_BLANK; |
| 2372 | if (repeat) |
| 2373 | arg = fpc - linepc + 1; |
| 2374 | else |
| 2375 | arg = 0; |
| 2376 | *fpc++ = arg; |
| 2377 | } |
| 2378 | if (s < send) { |
| 2379 | linepc = fpc; |
| 2380 | *fpc++ = FF_LINEMARK; |
| 2381 | noblank = repeat = FALSE; |
| 2382 | base = s; |
| 2383 | } |
| 2384 | else |
| 2385 | s++; |
| 2386 | continue; |
| 2387 | |
| 2388 | case '@': |
| 2389 | case '^': |
| 2390 | ischop = s[-1] == '^'; |
| 2391 | |
| 2392 | if (postspace) { |
| 2393 | *fpc++ = FF_SPACE; |
| 2394 | postspace = FALSE; |
| 2395 | } |
| 2396 | arg = (s - base) - 1; |
| 2397 | if (arg) { |
| 2398 | *fpc++ = FF_LITERAL; |
| 2399 | *fpc++ = arg; |
| 2400 | } |
| 2401 | |
| 2402 | base = s - 1; |
| 2403 | *fpc++ = FF_FETCH; |
| 2404 | if (*s == '*') { |
| 2405 | s++; |
| 2406 | *fpc++ = 0; |
| 2407 | *fpc++ = FF_LINEGLOB; |
| 2408 | } |
| 2409 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { |
| 2410 | arg = ischop ? 512 : 0; |
| 2411 | base = s - 1; |
| 2412 | while (*s == '#') |
| 2413 | s++; |
| 2414 | if (*s == '.') { |
| 2415 | char *f; |
| 2416 | s++; |
| 2417 | f = s; |
| 2418 | while (*s == '#') |
| 2419 | s++; |
| 2420 | arg |= 256 + (s - f); |
| 2421 | } |
| 2422 | *fpc++ = s - base; /* fieldsize for FETCH */ |
| 2423 | *fpc++ = FF_DECIMAL; |
| 2424 | *fpc++ = arg; |
| 2425 | } |
| 2426 | else { |
| 2427 | I32 prespace = 0; |
| 2428 | bool ismore = FALSE; |
| 2429 | |
| 2430 | if (*s == '>') { |
| 2431 | while (*++s == '>') ; |
| 2432 | prespace = FF_SPACE; |
| 2433 | } |
| 2434 | else if (*s == '|') { |
| 2435 | while (*++s == '|') ; |
| 2436 | prespace = FF_HALFSPACE; |
| 2437 | postspace = TRUE; |
| 2438 | } |
| 2439 | else { |
| 2440 | if (*s == '<') |
| 2441 | while (*++s == '<') ; |
| 2442 | postspace = TRUE; |
| 2443 | } |
| 2444 | if (*s == '.' && s[1] == '.' && s[2] == '.') { |
| 2445 | s += 3; |
| 2446 | ismore = TRUE; |
| 2447 | } |
| 2448 | *fpc++ = s - base; /* fieldsize for FETCH */ |
| 2449 | |
| 2450 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; |
| 2451 | |
| 2452 | if (prespace) |
| 2453 | *fpc++ = prespace; |
| 2454 | *fpc++ = FF_ITEM; |
| 2455 | if (ismore) |
| 2456 | *fpc++ = FF_MORE; |
| 2457 | if (ischop) |
| 2458 | *fpc++ = FF_CHOP; |
| 2459 | } |
| 2460 | base = s; |
| 2461 | skipspaces = 0; |
| 2462 | continue; |
| 2463 | } |
| 2464 | } |
| 2465 | *fpc++ = FF_END; |
| 2466 | |
| 2467 | arg = fpc - fops; |
| 2468 | { /* need to jump to the next word */ |
| 2469 | int z; |
| 2470 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; |
| 2471 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U16) + 4); |
| 2472 | s = SvPVX(sv) + SvCUR(sv) + z; |
| 2473 | } |
| 2474 | Copy(fops, s, arg, U16); |
| 2475 | Safefree(fops); |
| 2476 | SvCOMPILED_on(sv); |
| 2477 | } |
projects / p5sagit/p5-mst-13.2.git / blame