Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.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 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, |
12 | * shaking the air. |
13 | * |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! |
15 | * Fire, Foes! Awake! |
16 | */ |
17 | |
18 | #include "EXTERN.h" |
19 | #include "perl.h" |
20 | |
21 | /* Hot code. */ |
22 | |
23 | PP(pp_const) |
24 | { |
25 | dSP; |
26 | XPUSHs(cSVOP->op_sv); |
27 | RETURN; |
28 | } |
29 | |
30 | PP(pp_nextstate) |
31 | { |
32 | curcop = (COP*)op; |
33 | TAINT_NOT; /* Each statement is presumed innocent */ |
34 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
35 | FREETMPS; |
36 | return NORMAL; |
37 | } |
38 | |
39 | PP(pp_gvsv) |
40 | { |
41 | dSP; |
42 | EXTEND(sp,1); |
43 | if (op->op_private & OPpLVAL_INTRO) |
44 | PUSHs(save_scalar(cGVOP->op_gv)); |
45 | else |
46 | PUSHs(GvSV(cGVOP->op_gv)); |
47 | RETURN; |
48 | } |
49 | |
50 | PP(pp_null) |
51 | { |
52 | return NORMAL; |
53 | } |
54 | |
55 | PP(pp_pushmark) |
56 | { |
57 | PUSHMARK(stack_sp); |
58 | return NORMAL; |
59 | } |
60 | |
61 | PP(pp_stringify) |
62 | { |
63 | dSP; dTARGET; |
64 | STRLEN len; |
65 | char *s; |
66 | s = SvPV(TOPs,len); |
67 | sv_setpvn(TARG,s,len); |
68 | SETTARG; |
69 | RETURN; |
70 | } |
71 | |
72 | PP(pp_gv) |
73 | { |
74 | dSP; |
75 | XPUSHs((SV*)cGVOP->op_gv); |
76 | RETURN; |
77 | } |
78 | |
c07a80fd |
79 | PP(pp_gelem) |
80 | { |
81 | GV *gv; |
82 | SV *sv; |
83 | SV *ref; |
84 | char *elem; |
85 | dSP; |
86 | |
87 | sv = POPs; |
88 | elem = SvPV(sv, na); |
89 | gv = (GV*)POPs; |
90 | ref = Nullsv; |
91 | sv = Nullsv; |
92 | switch (elem ? *elem : '\0') |
93 | { |
94 | case 'A': |
95 | if (strEQ(elem, "ARRAY")) |
96 | ref = (SV*)GvAV(gv); |
97 | break; |
98 | case 'C': |
99 | if (strEQ(elem, "CODE")) |
100 | ref = (SV*)GvCV(gv); |
101 | break; |
102 | case 'F': |
103 | if (strEQ(elem, "FILEHANDLE")) |
104 | ref = (SV*)GvIOp(gv); |
105 | break; |
106 | case 'G': |
107 | if (strEQ(elem, "GLOB")) |
108 | ref = (SV*)gv; |
109 | break; |
110 | case 'H': |
111 | if (strEQ(elem, "HASH")) |
112 | ref = (SV*)GvHV(gv); |
113 | break; |
114 | case 'N': |
115 | if (strEQ(elem, "NAME")) |
116 | sv = newSVpv(GvNAME(gv), GvNAMELEN(gv)); |
117 | break; |
118 | case 'P': |
119 | if (strEQ(elem, "PACKAGE")) |
120 | sv = newSVpv(HvNAME(GvSTASH(gv)), 0); |
121 | break; |
122 | case 'S': |
123 | if (strEQ(elem, "SCALAR")) |
124 | ref = GvSV(gv); |
125 | break; |
126 | } |
127 | if (ref) |
128 | sv = newRV(ref); |
129 | if (sv) |
130 | sv_2mortal(sv); |
131 | else |
132 | sv = &sv_undef; |
133 | XPUSHs(sv); |
134 | RETURN; |
135 | } |
136 | |
a0d0e21e |
137 | PP(pp_and) |
138 | { |
139 | dSP; |
140 | if (!SvTRUE(TOPs)) |
141 | RETURN; |
142 | else { |
143 | --SP; |
144 | RETURNOP(cLOGOP->op_other); |
145 | } |
146 | } |
147 | |
148 | PP(pp_sassign) |
149 | { |
150 | dSP; dPOPTOPssrl; |
748a9306 |
151 | MAGIC *mg; |
152 | |
a0d0e21e |
153 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
154 | SV *temp; |
155 | temp = left; left = right; right = temp; |
156 | } |
157 | if (tainting && tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) || |
748a9306 |
158 | !((mg = mg_find(left, 't')) && mg->mg_len & 1))) |
159 | { |
a0d0e21e |
160 | TAINT_NOT; |
161 | } |
162 | SvSetSV(right, left); |
163 | SvSETMAGIC(right); |
164 | SETs(right); |
165 | RETURN; |
166 | } |
167 | |
168 | PP(pp_cond_expr) |
169 | { |
170 | dSP; |
171 | if (SvTRUEx(POPs)) |
172 | RETURNOP(cCONDOP->op_true); |
173 | else |
174 | RETURNOP(cCONDOP->op_false); |
175 | } |
176 | |
177 | PP(pp_unstack) |
178 | { |
179 | I32 oldsave; |
180 | TAINT_NOT; /* Each statement is presumed innocent */ |
181 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
182 | FREETMPS; |
183 | oldsave = scopestack[scopestack_ix - 1]; |
184 | LEAVE_SCOPE(oldsave); |
185 | return NORMAL; |
186 | } |
187 | |
188 | PP(pp_seq) |
189 | { |
190 | dSP; tryAMAGICbinSET(seq,0); |
191 | { |
192 | dPOPTOPssrl; |
193 | SETs( sv_eq(left, right) ? &sv_yes : &sv_no ); |
194 | RETURN; |
195 | } |
196 | } |
197 | |
198 | PP(pp_concat) |
199 | { |
748a9306 |
200 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
201 | { |
202 | dPOPTOPssrl; |
a0d0e21e |
203 | STRLEN len; |
204 | char *s; |
205 | if (TARG != left) { |
206 | s = SvPV(left,len); |
207 | sv_setpvn(TARG,s,len); |
208 | } |
c07a80fd |
209 | else if (SvGMAGICAL(TARG)) |
210 | mg_get(TARG); |
4633a7c4 |
211 | else if (!SvOK(TARG)) { |
212 | s = SvPV_force(TARG, len); |
748a9306 |
213 | sv_setpv(TARG, ""); /* Suppress warning. */ |
4633a7c4 |
214 | } |
a0d0e21e |
215 | s = SvPV(right,len); |
216 | sv_catpvn(TARG,s,len); |
217 | SETTARG; |
218 | RETURN; |
748a9306 |
219 | } |
a0d0e21e |
220 | } |
221 | |
222 | PP(pp_padsv) |
223 | { |
224 | dSP; dTARGET; |
225 | XPUSHs(TARG); |
4633a7c4 |
226 | if (op->op_flags & OPf_MOD) { |
227 | if (op->op_private & OPpLVAL_INTRO) |
228 | SAVECLEARSV(curpad[op->op_targ]); |
02a9e968 |
229 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
230 | provide_ref(op, curpad[op->op_targ]); |
4633a7c4 |
231 | } |
a0d0e21e |
232 | RETURN; |
233 | } |
234 | |
235 | PP(pp_readline) |
236 | { |
237 | last_in_gv = (GV*)(*stack_sp--); |
238 | return do_readline(); |
239 | } |
240 | |
241 | PP(pp_eq) |
242 | { |
243 | dSP; tryAMAGICbinSET(eq,0); |
244 | { |
245 | dPOPnv; |
246 | SETs((TOPn == value) ? &sv_yes : &sv_no); |
247 | RETURN; |
248 | } |
249 | } |
250 | |
251 | PP(pp_preinc) |
252 | { |
253 | dSP; |
748a9306 |
254 | if (SvIOK(TOPs)) { |
b328e6b9 |
255 | if (SvIVX(TOPs) == IV_MAX) { |
760ac839 |
256 | sv_setnv(TOPs, (double)(SvIVX(TOPs)) + 1.0 ); |
257 | } |
258 | else { |
259 | ++SvIVX(TOPs); |
260 | SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK); |
261 | } |
748a9306 |
262 | } |
263 | else |
264 | sv_inc(TOPs); |
a0d0e21e |
265 | SvSETMAGIC(TOPs); |
266 | return NORMAL; |
267 | } |
268 | |
269 | PP(pp_or) |
270 | { |
271 | dSP; |
272 | if (SvTRUE(TOPs)) |
273 | RETURN; |
274 | else { |
275 | --SP; |
276 | RETURNOP(cLOGOP->op_other); |
277 | } |
278 | } |
279 | |
280 | PP(pp_add) |
281 | { |
282 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
283 | { |
284 | dPOPTOPnnrl; |
285 | SETn( left + right ); |
286 | RETURN; |
287 | } |
288 | } |
289 | |
290 | PP(pp_aelemfast) |
291 | { |
292 | dSP; |
293 | AV *av = GvAV((GV*)cSVOP->op_sv); |
294 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
295 | PUSHs(svp ? *svp : &sv_undef); |
296 | RETURN; |
297 | } |
298 | |
299 | PP(pp_join) |
300 | { |
301 | dSP; dMARK; dTARGET; |
302 | MARK++; |
303 | do_join(TARG, *MARK, MARK, SP); |
304 | SP = MARK; |
305 | SETs(TARG); |
306 | RETURN; |
307 | } |
308 | |
309 | PP(pp_pushre) |
310 | { |
311 | dSP; |
312 | XPUSHs((SV*)op); |
313 | RETURN; |
314 | } |
315 | |
316 | /* Oversized hot code. */ |
317 | |
318 | PP(pp_print) |
319 | { |
320 | dSP; dMARK; dORIGMARK; |
321 | GV *gv; |
322 | IO *io; |
760ac839 |
323 | register PerlIO *fp; |
236988e4 |
324 | MAGIC *mg; |
a0d0e21e |
325 | |
326 | if (op->op_flags & OPf_STACKED) |
327 | gv = (GV*)*++MARK; |
328 | else |
329 | gv = defoutgv; |
236988e4 |
330 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
331 | SV *sv; |
332 | |
333 | PUSHMARK(MARK-1); |
334 | *MARK = mg->mg_obj; |
335 | ENTER; |
336 | perl_call_method("PRINT", G_SCALAR); |
337 | LEAVE; |
338 | SPAGAIN; |
339 | sv = POPs; |
340 | SP = ORIGMARK; |
341 | PUSHs(sv); |
342 | RETURN; |
343 | } |
a0d0e21e |
344 | if (!(io = GvIO(gv))) { |
748a9306 |
345 | if (dowarn) { |
346 | SV* sv = sv_newmortal(); |
b328e6b9 |
347 | gv_fullname(sv, gv, Nullch); |
748a9306 |
348 | warn("Filehandle %s never opened", SvPV(sv,na)); |
349 | } |
350 | |
351 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
352 | goto just_say_no; |
353 | } |
354 | else if (!(fp = IoOFP(io))) { |
355 | if (dowarn) { |
748a9306 |
356 | SV* sv = sv_newmortal(); |
b328e6b9 |
357 | gv_fullname(sv, gv, Nullch); |
a0d0e21e |
358 | if (IoIFP(io)) |
748a9306 |
359 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
360 | else |
748a9306 |
361 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
362 | } |
748a9306 |
363 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
364 | goto just_say_no; |
365 | } |
366 | else { |
367 | MARK++; |
368 | if (ofslen) { |
369 | while (MARK <= SP) { |
370 | if (!do_print(*MARK, fp)) |
371 | break; |
372 | MARK++; |
373 | if (MARK <= SP) { |
760ac839 |
374 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
375 | MARK--; |
376 | break; |
377 | } |
378 | } |
379 | } |
380 | } |
381 | else { |
382 | while (MARK <= SP) { |
383 | if (!do_print(*MARK, fp)) |
384 | break; |
385 | MARK++; |
386 | } |
387 | } |
388 | if (MARK <= SP) |
389 | goto just_say_no; |
390 | else { |
391 | if (orslen) |
760ac839 |
392 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
393 | goto just_say_no; |
394 | |
395 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
396 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
397 | goto just_say_no; |
398 | } |
399 | } |
400 | SP = ORIGMARK; |
401 | PUSHs(&sv_yes); |
402 | RETURN; |
403 | |
404 | just_say_no: |
405 | SP = ORIGMARK; |
406 | PUSHs(&sv_undef); |
407 | RETURN; |
408 | } |
409 | |
410 | PP(pp_rv2av) |
411 | { |
412 | dSP; dPOPss; |
413 | |
414 | AV *av; |
415 | |
416 | if (SvROK(sv)) { |
417 | wasref: |
418 | av = (AV*)SvRV(sv); |
419 | if (SvTYPE(av) != SVt_PVAV) |
420 | DIE("Not an ARRAY reference"); |
421 | if (op->op_private & OPpLVAL_INTRO) |
422 | av = (AV*)save_svref((SV**)sv); |
423 | if (op->op_flags & OPf_REF) { |
424 | PUSHs((SV*)av); |
425 | RETURN; |
426 | } |
427 | } |
428 | else { |
429 | if (SvTYPE(sv) == SVt_PVAV) { |
430 | av = (AV*)sv; |
431 | if (op->op_flags & OPf_REF) { |
432 | PUSHs((SV*)av); |
433 | RETURN; |
434 | } |
435 | } |
436 | else { |
67955e0c |
437 | GV *gv; |
438 | |
a0d0e21e |
439 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
440 | char *sym; |
441 | |
a0d0e21e |
442 | if (SvGMAGICAL(sv)) { |
443 | mg_get(sv); |
444 | if (SvROK(sv)) |
445 | goto wasref; |
446 | } |
447 | if (!SvOK(sv)) { |
448 | if (op->op_flags & OPf_REF || |
449 | op->op_private & HINT_STRICT_REFS) |
450 | DIE(no_usym, "an ARRAY"); |
4633a7c4 |
451 | if (GIMME == G_ARRAY) |
452 | RETURN; |
a0d0e21e |
453 | RETPUSHUNDEF; |
454 | } |
748a9306 |
455 | sym = SvPV(sv,na); |
a0d0e21e |
456 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
457 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
458 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
459 | } else { |
460 | gv = (GV*)sv; |
a0d0e21e |
461 | } |
67955e0c |
462 | av = GvAVn(gv); |
a0d0e21e |
463 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
464 | av = save_ary(gv); |
a0d0e21e |
465 | if (op->op_flags & OPf_REF) { |
466 | PUSHs((SV*)av); |
467 | RETURN; |
468 | } |
469 | } |
470 | } |
471 | |
472 | if (GIMME == G_ARRAY) { |
473 | I32 maxarg = AvFILL(av) + 1; |
474 | EXTEND(SP, maxarg); |
475 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
476 | SP += maxarg; |
477 | } |
478 | else { |
479 | dTARGET; |
480 | I32 maxarg = AvFILL(av) + 1; |
481 | PUSHi(maxarg); |
482 | } |
483 | RETURN; |
484 | } |
485 | |
486 | PP(pp_rv2hv) |
487 | { |
488 | |
489 | dSP; dTOPss; |
490 | |
491 | HV *hv; |
492 | |
493 | if (SvROK(sv)) { |
494 | wasref: |
495 | hv = (HV*)SvRV(sv); |
496 | if (SvTYPE(hv) != SVt_PVHV) |
497 | DIE("Not a HASH reference"); |
498 | if (op->op_private & OPpLVAL_INTRO) |
499 | hv = (HV*)save_svref((SV**)sv); |
500 | if (op->op_flags & OPf_REF) { |
501 | SETs((SV*)hv); |
502 | RETURN; |
503 | } |
504 | } |
505 | else { |
506 | if (SvTYPE(sv) == SVt_PVHV) { |
507 | hv = (HV*)sv; |
508 | if (op->op_flags & OPf_REF) { |
509 | SETs((SV*)hv); |
510 | RETURN; |
511 | } |
512 | } |
513 | else { |
67955e0c |
514 | GV *gv; |
515 | |
a0d0e21e |
516 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
517 | char *sym; |
518 | |
a0d0e21e |
519 | if (SvGMAGICAL(sv)) { |
520 | mg_get(sv); |
521 | if (SvROK(sv)) |
522 | goto wasref; |
523 | } |
524 | if (!SvOK(sv)) { |
525 | if (op->op_flags & OPf_REF || |
526 | op->op_private & HINT_STRICT_REFS) |
527 | DIE(no_usym, "a HASH"); |
4633a7c4 |
528 | if (GIMME == G_ARRAY) { |
529 | SP--; |
530 | RETURN; |
531 | } |
a0d0e21e |
532 | RETSETUNDEF; |
533 | } |
748a9306 |
534 | sym = SvPV(sv,na); |
a0d0e21e |
535 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
536 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
537 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
538 | } else { |
539 | gv = (GV*)sv; |
a0d0e21e |
540 | } |
67955e0c |
541 | hv = GvHVn(gv); |
a0d0e21e |
542 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
543 | hv = save_hash(gv); |
a0d0e21e |
544 | if (op->op_flags & OPf_REF) { |
545 | SETs((SV*)hv); |
546 | RETURN; |
547 | } |
548 | } |
549 | } |
550 | |
551 | if (GIMME == G_ARRAY) { /* array wanted */ |
552 | *stack_sp = (SV*)hv; |
553 | return do_kv(ARGS); |
554 | } |
555 | else { |
556 | dTARGET; |
557 | if (HvFILL(hv)) { |
558 | sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1); |
559 | sv_setpv(TARG, buf); |
560 | } |
561 | else |
562 | sv_setiv(TARG, 0); |
563 | SETTARG; |
564 | RETURN; |
565 | } |
566 | } |
567 | |
568 | PP(pp_aassign) |
569 | { |
570 | dSP; |
571 | SV **lastlelem = stack_sp; |
572 | SV **lastrelem = stack_base + POPMARK; |
573 | SV **firstrelem = stack_base + POPMARK + 1; |
574 | SV **firstlelem = lastrelem + 1; |
575 | |
576 | register SV **relem; |
577 | register SV **lelem; |
578 | |
579 | register SV *sv; |
580 | register AV *ary; |
581 | |
582 | HV *hash; |
583 | I32 i; |
584 | int magic; |
585 | |
586 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
587 | |
588 | /* If there's a common identifier on both sides we have to take |
589 | * special care that assigning the identifier on the left doesn't |
590 | * clobber a value on the right that's used later in the list. |
591 | */ |
592 | if (op->op_private & OPpASSIGN_COMMON) { |
593 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
594 | /*SUPPRESS 560*/ |
595 | if (sv = *relem) |
596 | *relem = sv_mortalcopy(sv); |
597 | } |
598 | } |
599 | |
600 | relem = firstrelem; |
601 | lelem = firstlelem; |
602 | ary = Null(AV*); |
603 | hash = Null(HV*); |
604 | while (lelem <= lastlelem) { |
4633a7c4 |
605 | tainted = 0; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
606 | sv = *lelem++; |
607 | switch (SvTYPE(sv)) { |
608 | case SVt_PVAV: |
609 | ary = (AV*)sv; |
748a9306 |
610 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
611 | |
612 | av_clear(ary); |
613 | i = 0; |
614 | while (relem <= lastrelem) { /* gobble up all the rest */ |
615 | sv = NEWSV(28,0); |
616 | assert(*relem); |
617 | sv_setsv(sv,*relem); |
618 | *(relem++) = sv; |
619 | (void)av_store(ary,i++,sv); |
620 | if (magic) |
621 | mg_set(sv); |
4633a7c4 |
622 | tainted = 0; |
a0d0e21e |
623 | } |
624 | break; |
625 | case SVt_PVHV: { |
a0d0e21e |
626 | SV *tmpstr; |
627 | |
628 | hash = (HV*)sv; |
748a9306 |
629 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
630 | hv_clear(hash); |
631 | |
632 | while (relem < lastrelem) { /* gobble up all the rest */ |
633 | STRLEN len; |
4633a7c4 |
634 | if (*relem) |
a0d0e21e |
635 | sv = *(relem++); |
4633a7c4 |
636 | else |
a0d0e21e |
637 | sv = &sv_no, relem++; |
a0d0e21e |
638 | tmpstr = NEWSV(29,0); |
639 | if (*relem) |
640 | sv_setsv(tmpstr,*relem); /* value */ |
641 | *(relem++) = tmpstr; |
760ac839 |
642 | (void)hv_store_ent(hash,sv,tmpstr,0); |
a0d0e21e |
643 | if (magic) |
644 | mg_set(tmpstr); |
4633a7c4 |
645 | tainted = 0; |
8e07c86e |
646 | } |
760ac839 |
647 | if (relem == lastrelem) |
648 | warn("Odd number of elements in hash list"); |
a0d0e21e |
649 | } |
650 | break; |
651 | default: |
652 | if (SvTHINKFIRST(sv)) { |
653 | if (SvREADONLY(sv) && curcop != &compiling) { |
654 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
655 | DIE(no_modify); |
656 | if (relem <= lastrelem) |
657 | relem++; |
658 | break; |
659 | } |
660 | if (SvROK(sv)) |
661 | sv_unref(sv); |
662 | } |
663 | if (relem <= lastrelem) { |
664 | sv_setsv(sv, *relem); |
665 | *(relem++) = sv; |
666 | } |
667 | else |
668 | sv_setsv(sv, &sv_undef); |
669 | SvSETMAGIC(sv); |
670 | break; |
671 | } |
672 | } |
673 | if (delaymagic & ~DM_DELAY) { |
674 | if (delaymagic & DM_UID) { |
675 | #ifdef HAS_SETRESUID |
676 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
677 | #else |
678 | # ifdef HAS_SETREUID |
a0d0e21e |
679 | (void)setreuid(uid,euid); |
56febc5e |
680 | # else |
681 | # ifdef HAS_SETRUID |
a0d0e21e |
682 | if ((delaymagic & DM_UID) == DM_RUID) { |
683 | (void)setruid(uid); |
748a9306 |
684 | delaymagic &= ~DM_RUID; |
a0d0e21e |
685 | } |
56febc5e |
686 | # endif /* HAS_SETRUID */ |
687 | # ifdef HAS_SETEUID |
a0d0e21e |
688 | if ((delaymagic & DM_UID) == DM_EUID) { |
689 | (void)seteuid(uid); |
748a9306 |
690 | delaymagic &= ~DM_EUID; |
a0d0e21e |
691 | } |
56febc5e |
692 | # endif /* HAS_SETEUID */ |
a0d0e21e |
693 | if (delaymagic & DM_UID) { |
694 | if (uid != euid) |
695 | DIE("No setreuid available"); |
696 | (void)setuid(uid); |
697 | } |
56febc5e |
698 | # endif /* HAS_SETREUID */ |
699 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
700 | uid = (int)getuid(); |
701 | euid = (int)geteuid(); |
702 | } |
703 | if (delaymagic & DM_GID) { |
704 | #ifdef HAS_SETRESGID |
705 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
706 | #else |
707 | # ifdef HAS_SETREGID |
a0d0e21e |
708 | (void)setregid(gid,egid); |
56febc5e |
709 | # else |
710 | # ifdef HAS_SETRGID |
a0d0e21e |
711 | if ((delaymagic & DM_GID) == DM_RGID) { |
712 | (void)setrgid(gid); |
748a9306 |
713 | delaymagic &= ~DM_RGID; |
a0d0e21e |
714 | } |
56febc5e |
715 | # endif /* HAS_SETRGID */ |
716 | # ifdef HAS_SETEGID |
a0d0e21e |
717 | if ((delaymagic & DM_GID) == DM_EGID) { |
718 | (void)setegid(gid); |
748a9306 |
719 | delaymagic &= ~DM_EGID; |
a0d0e21e |
720 | } |
56febc5e |
721 | # endif /* HAS_SETEGID */ |
a0d0e21e |
722 | if (delaymagic & DM_GID) { |
723 | if (gid != egid) |
724 | DIE("No setregid available"); |
725 | (void)setgid(gid); |
726 | } |
56febc5e |
727 | # endif /* HAS_SETREGID */ |
728 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
729 | gid = (int)getgid(); |
730 | egid = (int)getegid(); |
731 | } |
4633a7c4 |
732 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
733 | } |
734 | delaymagic = 0; |
735 | if (GIMME == G_ARRAY) { |
736 | if (ary || hash) |
737 | SP = lastrelem; |
738 | else |
739 | SP = firstrelem + (lastlelem - firstlelem); |
740 | RETURN; |
741 | } |
742 | else { |
4633a7c4 |
743 | dTARGET; |
a0d0e21e |
744 | SP = firstrelem; |
a0d0e21e |
745 | |
4633a7c4 |
746 | SETi(lastrelem - firstrelem + 1); |
747 | RETURN; |
a0d0e21e |
748 | } |
749 | } |
750 | |
751 | PP(pp_match) |
752 | { |
753 | dSP; dTARG; |
754 | register PMOP *pm = cPMOP; |
755 | register char *t; |
756 | register char *s; |
757 | char *strend; |
758 | I32 global; |
759 | I32 safebase; |
760 | char *truebase; |
761 | register REGEXP *rx = pm->op_pmregexp; |
762 | I32 gimme = GIMME; |
763 | STRLEN len; |
748a9306 |
764 | I32 minmatch = 0; |
4633a7c4 |
765 | I32 oldsave = savestack_ix; |
a0d0e21e |
766 | |
767 | if (op->op_flags & OPf_STACKED) |
768 | TARG = POPs; |
769 | else { |
770 | TARG = GvSV(defgv); |
771 | EXTEND(SP,1); |
772 | } |
773 | s = SvPV(TARG, len); |
774 | strend = s + len; |
775 | if (!s) |
776 | DIE("panic: do_match"); |
777 | |
778 | if (pm->op_pmflags & PMf_USED) { |
779 | if (gimme == G_ARRAY) |
780 | RETURN; |
781 | RETPUSHNO; |
782 | } |
783 | |
784 | if (!rx->prelen && curpm) { |
785 | pm = curpm; |
786 | rx = pm->op_pmregexp; |
787 | } |
788 | truebase = t = s; |
789 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
790 | rx->startp[0] = 0; |
791 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
792 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
793 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
794 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
795 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
796 | } |
a0d0e21e |
797 | } |
798 | } |
748a9306 |
799 | if (!rx->nparens && !global) |
800 | gimme = G_SCALAR; /* accidental array context? */ |
a0d0e21e |
801 | safebase = (gimme == G_ARRAY) || global; |
802 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
803 | SAVEINT(multiline); |
804 | multiline = pm->op_pmflags & PMf_MULTILINE; |
805 | } |
806 | |
807 | play_it_again: |
808 | if (global && rx->startp[0]) { |
809 | t = s = rx->endp[0]; |
810 | if (s > strend) |
811 | goto nope; |
748a9306 |
812 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
813 | } |
814 | if (pm->op_pmshort) { |
815 | if (pm->op_pmflags & PMf_SCANFIRST) { |
816 | if (SvSCREAM(TARG)) { |
817 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
818 | goto nope; |
819 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
820 | goto nope; |
821 | else if (pm->op_pmflags & PMf_ALL) |
822 | goto yup; |
823 | } |
824 | else if (!(s = fbm_instr((unsigned char*)s, |
825 | (unsigned char*)strend, pm->op_pmshort))) |
826 | goto nope; |
827 | else if (pm->op_pmflags & PMf_ALL) |
828 | goto yup; |
829 | if (s && rx->regback >= 0) { |
830 | ++BmUSEFUL(pm->op_pmshort); |
831 | s -= rx->regback; |
832 | if (s < t) |
833 | s = t; |
834 | } |
835 | else |
836 | s = t; |
837 | } |
838 | else if (!multiline) { |
839 | if (*SvPVX(pm->op_pmshort) != *s || |
236988e4 |
840 | memcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) { |
a0d0e21e |
841 | if (pm->op_pmflags & PMf_FOLD) { |
842 | if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) ) |
843 | goto nope; |
844 | } |
845 | else |
846 | goto nope; |
847 | } |
848 | } |
849 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
850 | SvREFCNT_dec(pm->op_pmshort); |
851 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
852 | } |
853 | } |
e50aee73 |
854 | if (pregexec(rx, s, strend, truebase, minmatch, |
a0d0e21e |
855 | SvSCREAM(TARG) ? TARG : Nullsv, |
856 | safebase)) { |
857 | curpm = pm; |
858 | if (pm->op_pmflags & PMf_ONCE) |
859 | pm->op_pmflags |= PMf_USED; |
860 | goto gotcha; |
861 | } |
862 | else |
863 | goto ret_no; |
864 | /*NOTREACHED*/ |
865 | |
866 | gotcha: |
867 | if (gimme == G_ARRAY) { |
868 | I32 iters, i, len; |
869 | |
870 | iters = rx->nparens; |
871 | if (global && !iters) |
872 | i = 1; |
873 | else |
874 | i = 0; |
875 | EXTEND(SP, iters + i); |
876 | for (i = !i; i <= iters; i++) { |
877 | PUSHs(sv_newmortal()); |
878 | /*SUPPRESS 560*/ |
879 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
880 | len = rx->endp[i] - s; |
881 | sv_setpvn(*SP, s, len); |
882 | } |
883 | } |
884 | if (global) { |
885 | truebase = rx->subbeg; |
886 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
887 | ++rx->endp[0]; |
888 | goto play_it_again; |
889 | } |
4633a7c4 |
890 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
891 | RETURN; |
892 | } |
893 | else { |
894 | if (global) { |
895 | MAGIC* mg = 0; |
896 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
897 | mg = mg_find(TARG, 'g'); |
898 | if (!mg) { |
899 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
900 | mg = mg_find(TARG, 'g'); |
901 | } |
748a9306 |
902 | if (rx->startp[0]) { |
903 | mg->mg_len = rx->endp[0] - truebase; |
904 | if (rx->startp[0] == rx->endp[0]) |
905 | mg->mg_flags |= MGf_MINMATCH; |
906 | else |
907 | mg->mg_flags &= ~MGf_MINMATCH; |
908 | } |
909 | else |
910 | mg->mg_len = -1; |
a0d0e21e |
911 | } |
4633a7c4 |
912 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
913 | RETPUSHYES; |
914 | } |
915 | |
916 | yup: |
917 | ++BmUSEFUL(pm->op_pmshort); |
918 | curpm = pm; |
919 | if (pm->op_pmflags & PMf_ONCE) |
920 | pm->op_pmflags |= PMf_USED; |
921 | if (global) { |
922 | rx->subbeg = truebase; |
923 | rx->subend = strend; |
924 | rx->startp[0] = s; |
925 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
926 | goto gotcha; |
927 | } |
928 | if (sawampersand) { |
929 | char *tmps; |
930 | |
931 | if (rx->subbase) |
932 | Safefree(rx->subbase); |
933 | tmps = rx->subbase = savepvn(t, strend-t); |
934 | rx->subbeg = tmps; |
935 | rx->subend = tmps + (strend-t); |
936 | tmps = rx->startp[0] = tmps + (s - t); |
937 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
938 | } |
4633a7c4 |
939 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
940 | RETPUSHYES; |
941 | |
942 | nope: |
943 | if (pm->op_pmshort) |
944 | ++BmUSEFUL(pm->op_pmshort); |
945 | |
946 | ret_no: |
947 | if (global) { |
948 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
949 | MAGIC* mg = mg_find(TARG, 'g'); |
950 | if (mg) |
951 | mg->mg_len = -1; |
952 | } |
953 | } |
4633a7c4 |
954 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
955 | if (gimme == G_ARRAY) |
956 | RETURN; |
957 | RETPUSHNO; |
958 | } |
959 | |
960 | OP * |
961 | do_readline() |
962 | { |
963 | dSP; dTARGETSTACKED; |
964 | register SV *sv; |
965 | STRLEN tmplen = 0; |
966 | STRLEN offset; |
760ac839 |
967 | PerlIO *fp; |
a0d0e21e |
968 | register IO *io = GvIO(last_in_gv); |
969 | register I32 type = op->op_type; |
970 | |
971 | fp = Nullfp; |
972 | if (io) { |
973 | fp = IoIFP(io); |
974 | if (!fp) { |
975 | if (IoFLAGS(io) & IOf_ARGV) { |
976 | if (IoFLAGS(io) & IOf_START) { |
977 | IoFLAGS(io) &= ~IOf_START; |
978 | IoLINES(io) = 0; |
979 | if (av_len(GvAVn(last_in_gv)) < 0) { |
980 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
981 | av_push(GvAVn(last_in_gv), tmpstr); |
982 | } |
983 | } |
984 | fp = nextargv(last_in_gv); |
985 | if (!fp) { /* Note: fp != IoIFP(io) */ |
986 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
987 | IoFLAGS(io) |= IOf_START; |
988 | } |
989 | } |
990 | else if (type == OP_GLOB) { |
991 | SV *tmpcmd = NEWSV(55, 0); |
992 | SV *tmpglob = POPs; |
993 | ENTER; |
994 | SAVEFREESV(tmpcmd); |
995 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
996 | /* since spawning off a process is a real performance hit */ |
997 | { |
998 | #include <descrip.h> |
999 | #include <lib$routines.h> |
1000 | #include <nam.h> |
1001 | #include <rmsdef.h> |
1002 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1003 | char vmsspec[NAM$C_MAXRSS+1]; |
1004 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1005 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1006 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1007 | PerlIO *tmpfp; |
a0d0e21e |
1008 | STRLEN i; |
1009 | struct dsc$descriptor_s wilddsc |
1010 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1011 | struct dsc$descriptor_vs rsdsc |
1012 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1013 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1014 | |
1015 | /* We could find out if there's an explicit dev/dir or version |
1016 | by peeking into lib$find_file's internal context at |
1017 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1018 | but that's unsupported, so I don't want to do it now and |
1019 | have it bite someone in the future. */ |
1020 | strcat(tmpfnam,tmpnam(NULL)); |
1021 | cp = SvPV(tmpglob,i); |
1022 | for (; i; i--) { |
1023 | if (cp[i] == ';') hasver = 1; |
1024 | if (cp[i] == '.') { |
1025 | if (sts) hasver = 1; |
1026 | else sts = 1; |
1027 | } |
1028 | if (cp[i] == '/') { |
1029 | hasdir = isunix = 1; |
1030 | break; |
748a9306 |
1031 | } |
a0d0e21e |
1032 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1033 | hasdir = 1; |
1034 | break; |
1035 | } |
1036 | } |
760ac839 |
1037 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1038 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1039 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1040 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1041 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1042 | end = rstr + (unsigned long int) *rslt; |
1043 | if (!hasver) while (*end != ';') end--; |
1044 | *(end++) = '\n'; *end = '\0'; |
1045 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1046 | if (hasdir) { |
271c2963 |
1047 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob)); |
a0d0e21e |
1048 | begin = rstr; |
1049 | } |
1050 | else { |
1051 | begin = end; |
1052 | while (*(--begin) != ']' && *begin != '>') ; |
1053 | ++begin; |
1054 | } |
760ac839 |
1055 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1056 | } |
1057 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1058 | if (ok && sts != RMS$_NMF && |
1059 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1060 | if (!ok) { |
c07a80fd |
1061 | if (!(sts & 1)) { |
1062 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1063 | } |
760ac839 |
1064 | PerlIO_close(tmpfp); |
a0d0e21e |
1065 | fp = NULL; |
1066 | } |
1067 | else { |
760ac839 |
1068 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1069 | IoTYPE(io) = '<'; |
1070 | IoIFP(io) = fp = tmpfp; |
1071 | } |
1072 | } |
1073 | } |
1074 | #else /* !VMS */ |
1075 | #ifdef DOSISH |
67955e0c |
1076 | #ifdef OS2 |
1077 | sv_setpv(tmpcmd, "for a in "); |
1078 | sv_catsv(tmpcmd, tmpglob); |
1079 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1080 | #else |
a0d0e21e |
1081 | sv_setpv(tmpcmd, "perlglob "); |
1082 | sv_catsv(tmpcmd, tmpglob); |
1083 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1084 | #endif /* !OS2 */ |
1085 | #else /* !DOSISH */ |
1086 | #if defined(CSH) |
a0d0e21e |
1087 | sv_setpvn(tmpcmd, cshname, cshlen); |
1088 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1089 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1090 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1091 | #else |
1092 | sv_setpv(tmpcmd, "echo "); |
1093 | sv_catsv(tmpcmd, tmpglob); |
1094 | #if 'z' - 'a' == 25 |
1095 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1096 | #else |
1097 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1098 | #endif |
1099 | #endif /* !CSH */ |
67955e0c |
1100 | #endif /* !DOSISH */ |
c07a80fd |
1101 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1102 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1103 | fp = IoIFP(io); |
1104 | #endif /* !VMS */ |
1105 | LEAVE; |
1106 | } |
1107 | } |
1108 | else if (type == OP_GLOB) |
1109 | SP--; |
1110 | } |
1111 | if (!fp) { |
4633a7c4 |
1112 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1113 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
1114 | if (GIMME == G_SCALAR) { |
1115 | (void)SvOK_off(TARG); |
1116 | PUSHTARG; |
1117 | } |
1118 | RETURN; |
1119 | } |
1120 | if (GIMME == G_ARRAY) { |
1121 | sv = sv_2mortal(NEWSV(57, 80)); |
1122 | offset = 0; |
1123 | } |
1124 | else { |
1125 | sv = TARG; |
1126 | (void)SvUPGRADE(sv, SVt_PV); |
1127 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1128 | if (!tmplen) |
1129 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1130 | if (type == OP_RCATLINE) |
1131 | offset = SvCUR(sv); |
1132 | else |
1133 | offset = 0; |
1134 | } |
1135 | for (;;) { |
1136 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1137 | PerlIO_clearerr(fp); |
a0d0e21e |
1138 | if (IoFLAGS(io) & IOf_ARGV) { |
1139 | fp = nextargv(last_in_gv); |
1140 | if (fp) |
1141 | continue; |
1142 | (void)do_close(last_in_gv, FALSE); |
1143 | IoFLAGS(io) |= IOf_START; |
1144 | } |
1145 | else if (type == OP_GLOB) { |
1146 | (void)do_close(last_in_gv, FALSE); |
1147 | } |
1148 | if (GIMME == G_SCALAR) { |
1149 | (void)SvOK_off(TARG); |
1150 | PUSHTARG; |
1151 | } |
1152 | RETURN; |
1153 | } |
1154 | IoLINES(io)++; |
1155 | XPUSHs(sv); |
1156 | if (tainting) { |
1157 | tainted = TRUE; |
1158 | SvTAINT(sv); /* Anything from the outside world...*/ |
1159 | } |
1160 | if (type == OP_GLOB) { |
1161 | char *tmps; |
1162 | |
c07a80fd |
1163 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1164 | tmps = SvEND(sv) - 1; |
1165 | if (*tmps == *SvPVX(rs)) { |
1166 | *tmps = '\0'; |
1167 | SvCUR(sv)--; |
1168 | } |
1169 | } |
a0d0e21e |
1170 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1171 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1172 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1173 | break; |
1174 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1175 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1176 | continue; |
1177 | } |
1178 | } |
1179 | if (GIMME == G_ARRAY) { |
1180 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1181 | SvLEN_set(sv, SvCUR(sv)+1); |
1182 | Renew(SvPVX(sv), SvLEN(sv), char); |
1183 | } |
1184 | sv = sv_2mortal(NEWSV(58, 80)); |
1185 | continue; |
1186 | } |
1187 | else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
1188 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1189 | if (SvCUR(sv) < 60) |
1190 | SvLEN_set(sv, 80); |
1191 | else |
1192 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1193 | Renew(SvPVX(sv), SvLEN(sv), char); |
1194 | } |
1195 | RETURN; |
1196 | } |
1197 | } |
1198 | |
1199 | PP(pp_enter) |
1200 | { |
1201 | dSP; |
1202 | register CONTEXT *cx; |
1203 | I32 gimme; |
1204 | |
1205 | /* |
1206 | * We don't just use the GIMME macro here because it assumes there's |
1207 | * already a context, which ain't necessarily so at initial startup. |
1208 | */ |
1209 | |
1210 | if (op->op_flags & OPf_KNOW) |
1211 | gimme = op->op_flags & OPf_LIST; |
1212 | else if (cxstack_ix >= 0) |
1213 | gimme = cxstack[cxstack_ix].blk_gimme; |
1214 | else |
1215 | gimme = G_SCALAR; |
1216 | |
1217 | ENTER; |
1218 | |
1219 | SAVETMPS; |
1220 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1221 | |
1222 | RETURN; |
1223 | } |
1224 | |
1225 | PP(pp_helem) |
1226 | { |
1227 | dSP; |
1228 | SV** svp; |
760ac839 |
1229 | HE* he; |
a0d0e21e |
1230 | SV *keysv = POPs; |
a0d0e21e |
1231 | HV *hv = (HV*)POPs; |
1232 | I32 lval = op->op_flags & OPf_MOD; |
1233 | |
1234 | if (SvTYPE(hv) != SVt_PVHV) |
1235 | RETPUSHUNDEF; |
760ac839 |
1236 | he = hv_fetch_ent(hv, keysv, lval, 0); |
a0d0e21e |
1237 | if (lval) { |
760ac839 |
1238 | if (!he || HeVAL(he) == &sv_undef) |
1239 | DIE(no_helem, SvPV(keysv, na)); |
a0d0e21e |
1240 | if (op->op_private & OPpLVAL_INTRO) |
760ac839 |
1241 | save_svref(&HeVAL(he)); |
02a9e968 |
1242 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
760ac839 |
1243 | provide_ref(op, HeVAL(he)); |
a0d0e21e |
1244 | } |
760ac839 |
1245 | PUSHs(he ? HeVAL(he) : &sv_undef); |
a0d0e21e |
1246 | RETURN; |
1247 | } |
1248 | |
1249 | PP(pp_leave) |
1250 | { |
1251 | dSP; |
1252 | register CONTEXT *cx; |
1253 | register SV **mark; |
1254 | SV **newsp; |
1255 | PMOP *newpm; |
1256 | I32 gimme; |
1257 | |
1258 | if (op->op_flags & OPf_SPECIAL) { |
1259 | cx = &cxstack[cxstack_ix]; |
1260 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1261 | } |
1262 | |
1263 | POPBLOCK(cx,newpm); |
1264 | |
1265 | if (op->op_flags & OPf_KNOW) |
1266 | gimme = op->op_flags & OPf_LIST; |
1267 | else if (cxstack_ix >= 0) |
1268 | gimme = cxstack[cxstack_ix].blk_gimme; |
1269 | else |
1270 | gimme = G_SCALAR; |
1271 | |
1272 | if (gimme == G_SCALAR) { |
1273 | if (op->op_private & OPpLEAVE_VOID) |
1274 | SP = newsp; |
1275 | else { |
1276 | MARK = newsp + 1; |
1277 | if (MARK <= SP) |
1278 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1279 | *MARK = TOPs; |
1280 | else |
1281 | *MARK = sv_mortalcopy(TOPs); |
1282 | else { |
1283 | MEXTEND(mark,0); |
1284 | *MARK = &sv_undef; |
1285 | } |
1286 | SP = MARK; |
1287 | } |
1288 | } |
1289 | else { |
1290 | for (mark = newsp + 1; mark <= SP; mark++) |
1291 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
1292 | *mark = sv_mortalcopy(*mark); |
1293 | /* in case LEAVE wipes old return values */ |
1294 | } |
1295 | curpm = newpm; /* Don't pop $1 et al till now */ |
1296 | |
1297 | LEAVE; |
1298 | |
1299 | RETURN; |
1300 | } |
1301 | |
1302 | PP(pp_iter) |
1303 | { |
1304 | dSP; |
1305 | register CONTEXT *cx; |
1306 | SV *sv; |
4633a7c4 |
1307 | AV* av; |
a0d0e21e |
1308 | |
1309 | EXTEND(sp, 1); |
1310 | cx = &cxstack[cxstack_ix]; |
1311 | if (cx->cx_type != CXt_LOOP) |
1312 | DIE("panic: pp_iter"); |
4633a7c4 |
1313 | av = cx->blk_loop.iterary; |
67955e0c |
1314 | if (av == curstack && cx->blk_loop.iterix >= cx->blk_oldsp) |
4633a7c4 |
1315 | RETPUSHNO; |
a0d0e21e |
1316 | |
4633a7c4 |
1317 | if (cx->blk_loop.iterix >= AvFILL(av)) |
a0d0e21e |
1318 | RETPUSHNO; |
1319 | |
4633a7c4 |
1320 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) { |
a0d0e21e |
1321 | SvTEMP_off(sv); |
1322 | *cx->blk_loop.itervar = sv; |
1323 | } |
1324 | else |
1325 | *cx->blk_loop.itervar = &sv_undef; |
1326 | |
1327 | RETPUSHYES; |
1328 | } |
1329 | |
1330 | PP(pp_subst) |
1331 | { |
1332 | dSP; dTARG; |
1333 | register PMOP *pm = cPMOP; |
1334 | PMOP *rpm = pm; |
1335 | register SV *dstr; |
1336 | register char *s; |
1337 | char *strend; |
1338 | register char *m; |
1339 | char *c; |
1340 | register char *d; |
1341 | STRLEN clen; |
1342 | I32 iters = 0; |
1343 | I32 maxiters; |
1344 | register I32 i; |
1345 | bool once; |
1346 | char *orig; |
1347 | I32 safebase; |
1348 | register REGEXP *rx = pm->op_pmregexp; |
1349 | STRLEN len; |
1350 | int force_on_match = 0; |
4633a7c4 |
1351 | I32 oldsave = savestack_ix; |
a0d0e21e |
1352 | |
1353 | if (pm->op_pmflags & PMf_CONST) /* known replacement string? */ |
1354 | dstr = POPs; |
1355 | if (op->op_flags & OPf_STACKED) |
1356 | TARG = POPs; |
1357 | else { |
1358 | TARG = GvSV(defgv); |
1359 | EXTEND(SP,1); |
1360 | } |
1361 | s = SvPV(TARG, len); |
8e07c86e |
1362 | if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV)) |
a0d0e21e |
1363 | force_on_match = 1; |
1364 | |
1365 | force_it: |
1366 | if (!pm || !s) |
1367 | DIE("panic: do_subst"); |
1368 | |
1369 | strend = s + len; |
1370 | maxiters = (strend - s) + 10; |
1371 | |
1372 | if (!rx->prelen && curpm) { |
1373 | pm = curpm; |
1374 | rx = pm->op_pmregexp; |
1375 | } |
1376 | safebase = ((!rx || !rx->nparens) && !sawampersand); |
1377 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1378 | SAVEINT(multiline); |
1379 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1380 | } |
1381 | orig = m = s; |
1382 | if (pm->op_pmshort) { |
1383 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1384 | if (SvSCREAM(TARG)) { |
1385 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1386 | goto nope; |
1387 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1388 | goto nope; |
1389 | } |
1390 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1391 | pm->op_pmshort))) |
1392 | goto nope; |
1393 | if (s && rx->regback >= 0) { |
1394 | ++BmUSEFUL(pm->op_pmshort); |
1395 | s -= rx->regback; |
1396 | if (s < m) |
1397 | s = m; |
1398 | } |
1399 | else |
1400 | s = m; |
1401 | } |
1402 | else if (!multiline) { |
1403 | if (*SvPVX(pm->op_pmshort) != *s || |
236988e4 |
1404 | memcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) { |
a0d0e21e |
1405 | if (pm->op_pmflags & PMf_FOLD) { |
1406 | if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) ) |
1407 | goto nope; |
1408 | } |
1409 | else |
1410 | goto nope; |
1411 | } |
1412 | } |
1413 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1414 | SvREFCNT_dec(pm->op_pmshort); |
1415 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1416 | } |
1417 | } |
1418 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
1419 | if (rpm->op_pmflags & PMf_CONST) { /* known replacement string? */ |
1420 | c = SvPV(dstr, clen); |
1421 | if (clen <= rx->minlen) { |
1422 | /* can do inplace substitution */ |
e50aee73 |
1423 | if (pregexec(rx, s, strend, orig, 0, |
a0d0e21e |
1424 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1425 | if (force_on_match) { |
1426 | force_on_match = 0; |
1427 | s = SvPV_force(TARG, len); |
1428 | goto force_it; |
1429 | } |
1430 | if (rx->subbase) /* oops, no we can't */ |
1431 | goto long_way; |
1432 | d = s; |
1433 | curpm = pm; |
1434 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1435 | if (once) { |
1436 | m = rx->startp[0]; |
1437 | d = rx->endp[0]; |
1438 | s = orig; |
1439 | if (m - s > strend - d) { /* faster to shorten from end */ |
1440 | if (clen) { |
1441 | Copy(c, m, clen, char); |
1442 | m += clen; |
1443 | } |
1444 | i = strend - d; |
1445 | if (i > 0) { |
1446 | Move(d, m, i, char); |
1447 | m += i; |
1448 | } |
1449 | *m = '\0'; |
1450 | SvCUR_set(TARG, m - s); |
1451 | (void)SvPOK_only(TARG); |
1452 | SvSETMAGIC(TARG); |
1453 | PUSHs(&sv_yes); |
4633a7c4 |
1454 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1455 | RETURN; |
1456 | } |
1457 | /*SUPPRESS 560*/ |
1458 | else if (i = m - s) { /* faster from front */ |
1459 | d -= clen; |
1460 | m = d; |
1461 | sv_chop(TARG, d-i); |
1462 | s += i; |
1463 | while (i--) |
1464 | *--d = *--s; |
1465 | if (clen) |
1466 | Copy(c, m, clen, char); |
1467 | (void)SvPOK_only(TARG); |
1468 | SvSETMAGIC(TARG); |
1469 | PUSHs(&sv_yes); |
4633a7c4 |
1470 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1471 | RETURN; |
1472 | } |
1473 | else if (clen) { |
1474 | d -= clen; |
1475 | sv_chop(TARG, d); |
1476 | Copy(c, d, clen, char); |
1477 | (void)SvPOK_only(TARG); |
1478 | SvSETMAGIC(TARG); |
1479 | PUSHs(&sv_yes); |
4633a7c4 |
1480 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1481 | RETURN; |
1482 | } |
1483 | else { |
1484 | sv_chop(TARG, d); |
1485 | (void)SvPOK_only(TARG); |
1486 | SvSETMAGIC(TARG); |
1487 | PUSHs(&sv_yes); |
4633a7c4 |
1488 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1489 | RETURN; |
1490 | } |
1491 | /* NOTREACHED */ |
1492 | } |
1493 | do { |
1494 | if (iters++ > maxiters) |
1495 | DIE("Substitution loop"); |
1496 | m = rx->startp[0]; |
1497 | /*SUPPRESS 560*/ |
1498 | if (i = m - s) { |
1499 | if (s != d) |
1500 | Move(s, d, i, char); |
1501 | d += i; |
1502 | } |
1503 | if (clen) { |
1504 | Copy(c, d, clen, char); |
1505 | d += clen; |
1506 | } |
1507 | s = rx->endp[0]; |
e50aee73 |
1508 | } while (pregexec(rx, s, strend, orig, s == m, |
a0d0e21e |
1509 | Nullsv, TRUE)); /* (don't match same null twice) */ |
1510 | if (s != d) { |
1511 | i = strend - s; |
1512 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1513 | Move(s, d, i+1, char); /* include the Null */ |
1514 | } |
1515 | (void)SvPOK_only(TARG); |
1516 | SvSETMAGIC(TARG); |
1517 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1518 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1519 | RETURN; |
1520 | } |
1521 | PUSHs(&sv_no); |
4633a7c4 |
1522 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1523 | RETURN; |
1524 | } |
1525 | } |
1526 | else |
1527 | c = Nullch; |
e50aee73 |
1528 | if (pregexec(rx, s, strend, orig, 0, |
a0d0e21e |
1529 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1530 | long_way: |
1531 | if (force_on_match) { |
1532 | force_on_match = 0; |
1533 | s = SvPV_force(TARG, len); |
1534 | goto force_it; |
1535 | } |
1536 | dstr = NEWSV(25, sv_len(TARG)); |
1537 | sv_setpvn(dstr, m, s-m); |
1538 | curpm = pm; |
1539 | if (!c) { |
1540 | register CONTEXT *cx; |
1541 | PUSHSUBST(cx); |
1542 | RETURNOP(cPMOP->op_pmreplroot); |
1543 | } |
1544 | do { |
1545 | if (iters++ > maxiters) |
1546 | DIE("Substitution loop"); |
1547 | if (rx->subbase && rx->subbase != orig) { |
1548 | m = s; |
1549 | s = orig; |
1550 | orig = rx->subbase; |
1551 | s = orig + (m - s); |
1552 | strend = s + (strend - m); |
1553 | } |
1554 | m = rx->startp[0]; |
1555 | sv_catpvn(dstr, s, m-s); |
1556 | s = rx->endp[0]; |
1557 | if (clen) |
1558 | sv_catpvn(dstr, c, clen); |
1559 | if (once) |
1560 | break; |
e50aee73 |
1561 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, |
a0d0e21e |
1562 | safebase)); |
1563 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1564 | |
4633a7c4 |
1565 | (void)SvOOK_off(TARG); |
cb0b1708 |
1566 | Safefree(SvPVX(TARG)); |
748a9306 |
1567 | SvPVX(TARG) = SvPVX(dstr); |
1568 | SvCUR_set(TARG, SvCUR(dstr)); |
1569 | SvLEN_set(TARG, SvLEN(dstr)); |
1570 | SvPVX(dstr) = 0; |
1571 | sv_free(dstr); |
1572 | |
a0d0e21e |
1573 | (void)SvPOK_only(TARG); |
1574 | SvSETMAGIC(TARG); |
1575 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1576 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1577 | RETURN; |
1578 | } |
1579 | PUSHs(&sv_no); |
4633a7c4 |
1580 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1581 | RETURN; |
1582 | |
1583 | nope: |
1584 | ++BmUSEFUL(pm->op_pmshort); |
1585 | PUSHs(&sv_no); |
4633a7c4 |
1586 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1587 | RETURN; |
1588 | } |
1589 | |
1590 | PP(pp_grepwhile) |
1591 | { |
1592 | dSP; |
1593 | |
1594 | if (SvTRUEx(POPs)) |
1595 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1596 | ++*markstack_ptr; |
1597 | LEAVE; /* exit inner scope */ |
1598 | |
1599 | /* All done yet? */ |
1600 | if (stack_base + *markstack_ptr > sp) { |
1601 | I32 items; |
1602 | |
1603 | LEAVE; /* exit outer scope */ |
1604 | (void)POPMARK; /* pop src */ |
1605 | items = --*markstack_ptr - markstack_ptr[-1]; |
1606 | (void)POPMARK; /* pop dst */ |
1607 | SP = stack_base + POPMARK; /* pop original mark */ |
1608 | if (GIMME != G_ARRAY) { |
1609 | dTARGET; |
1610 | XPUSHi(items); |
1611 | RETURN; |
1612 | } |
1613 | SP += items; |
1614 | RETURN; |
1615 | } |
1616 | else { |
1617 | SV *src; |
1618 | |
1619 | ENTER; /* enter inner scope */ |
1620 | SAVESPTR(curpm); |
1621 | |
1622 | src = stack_base[*markstack_ptr]; |
1623 | SvTEMP_off(src); |
1624 | GvSV(defgv) = src; |
1625 | |
1626 | RETURNOP(cLOGOP->op_other); |
1627 | } |
1628 | } |
1629 | |
1630 | PP(pp_leavesub) |
1631 | { |
1632 | dSP; |
1633 | SV **mark; |
1634 | SV **newsp; |
1635 | PMOP *newpm; |
1636 | I32 gimme; |
1637 | register CONTEXT *cx; |
1638 | |
1639 | POPBLOCK(cx,newpm); |
1640 | POPSUB(cx); |
1641 | |
1642 | if (gimme == G_SCALAR) { |
1643 | MARK = newsp + 1; |
1644 | if (MARK <= SP) |
1645 | if (SvFLAGS(TOPs) & SVs_TEMP) |
1646 | *MARK = TOPs; |
1647 | else |
1648 | *MARK = sv_mortalcopy(TOPs); |
1649 | else { |
1650 | MEXTEND(mark,0); |
1651 | *MARK = &sv_undef; |
1652 | } |
1653 | SP = MARK; |
1654 | } |
1655 | else { |
1656 | for (mark = newsp + 1; mark <= SP; mark++) |
1657 | if (!(SvFLAGS(*mark) & SVs_TEMP)) |
1658 | *mark = sv_mortalcopy(*mark); |
1659 | /* in case LEAVE wipes old return values */ |
1660 | } |
1661 | |
1662 | if (cx->blk_sub.hasargs) { /* You don't exist; go away. */ |
1663 | AV* av = cx->blk_sub.argarray; |
1664 | |
1665 | av_clear(av); |
1666 | AvREAL_off(av); |
1667 | } |
1668 | curpm = newpm; /* Don't pop $1 et al till now */ |
1669 | |
1670 | LEAVE; |
1671 | PUTBACK; |
1672 | return pop_return(); |
1673 | } |
1674 | |
1675 | PP(pp_entersub) |
1676 | { |
1677 | dSP; dPOPss; |
1678 | GV *gv; |
1679 | HV *stash; |
1680 | register CV *cv; |
1681 | register CONTEXT *cx; |
5d94fbed |
1682 | I32 gimme; |
67955e0c |
1683 | I32 hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1684 | |
1685 | if (!sv) |
1686 | DIE("Not a CODE reference"); |
1687 | switch (SvTYPE(sv)) { |
1688 | default: |
1689 | if (!SvROK(sv)) { |
748a9306 |
1690 | char *sym; |
1691 | |
a0d0e21e |
1692 | if (sv == &sv_yes) /* unfound import, ignore */ |
1693 | RETURN; |
1694 | if (!SvOK(sv)) |
1695 | DIE(no_usym, "a subroutine"); |
748a9306 |
1696 | sym = SvPV(sv,na); |
a0d0e21e |
1697 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1698 | DIE(no_symref, sym, "a subroutine"); |
1699 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1700 | break; |
1701 | } |
1702 | cv = (CV*)SvRV(sv); |
1703 | if (SvTYPE(cv) == SVt_PVCV) |
1704 | break; |
1705 | /* FALL THROUGH */ |
1706 | case SVt_PVHV: |
1707 | case SVt_PVAV: |
1708 | DIE("Not a CODE reference"); |
1709 | case SVt_PVCV: |
1710 | cv = (CV*)sv; |
1711 | break; |
1712 | case SVt_PVGV: |
1713 | if (!(cv = GvCV((GV*)sv))) |
1714 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1715 | break; |
1716 | } |
1717 | |
1718 | ENTER; |
1719 | SAVETMPS; |
1720 | |
1721 | retry: |
1722 | if (!cv) |
1723 | DIE("Not a CODE reference"); |
1724 | |
1725 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
1726 | if (gv = CvGV(cv)) { |
4633a7c4 |
1727 | SV *tmpstr; |
a0d0e21e |
1728 | GV *ngv; |
4633a7c4 |
1729 | if (SvFAKE(cv) && GvCV(gv) != cv) { /* autoloaded stub? */ |
1730 | cv = GvCV(gv); |
1731 | if (SvTYPE(sv) == SVt_PVGV) { |
1732 | SvREFCNT_dec(GvCV((GV*)sv)); |
1733 | GvCV((GV*)sv) = (CV*)SvREFCNT_inc((SV*)cv); |
1734 | } |
1735 | goto retry; |
1736 | } |
1737 | tmpstr = sv_newmortal(); |
b328e6b9 |
1738 | gv_efullname(tmpstr, gv, Nullch); |
a0d0e21e |
1739 | ngv = gv_fetchmethod(GvESTASH(gv), "AUTOLOAD"); |
1740 | if (ngv && ngv != gv && (cv = GvCV(ngv))) { /* One more chance... */ |
1741 | gv = ngv; |
1742 | sv_setsv(GvSV(CvGV(cv)), tmpstr); /* Set CV's $AUTOLOAD */ |
c07a80fd |
1743 | if (tainting) |
1744 | sv_unmagic(GvSV(CvGV(cv)), 't'); |
a0d0e21e |
1745 | goto retry; |
1746 | } |
1747 | else |
1748 | DIE("Undefined subroutine &%s called",SvPVX(tmpstr)); |
1749 | } |
1750 | DIE("Undefined subroutine called"); |
1751 | } |
1752 | |
4633a7c4 |
1753 | gimme = GIMME; |
67955e0c |
1754 | if ((op->op_private & OPpENTERSUB_DB)) { |
a0d0e21e |
1755 | sv = GvSV(DBsub); |
1756 | save_item(sv); |
67955e0c |
1757 | gv = CvGV(cv); |
1758 | if ( CvFLAGS(cv) & (CVf_ANON | CVf_CLONED) |
1759 | || strEQ(GvNAME(gv), "END") ) { |
a5f75d66 |
1760 | /* GV is potentially non-unique */ |
748a9306 |
1761 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 |
1762 | } |
748a9306 |
1763 | else { |
b328e6b9 |
1764 | gv_efullname(sv, gv, Nullch); |
748a9306 |
1765 | } |
a0d0e21e |
1766 | cv = GvCV(DBsub); |
67955e0c |
1767 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e |
1768 | if (!cv) |
1769 | DIE("No DBsub routine"); |
1770 | } |
1771 | |
1772 | if (CvXSUB(cv)) { |
1773 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1774 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1775 | dMARK; |
1776 | register I32 items = SP - MARK; |
67955e0c |
1777 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1778 | while (sp > mark) { |
1779 | sp[1] = sp[0]; |
1780 | sp--; |
1781 | } |
1782 | stack_sp = mark + 1; |
ecfc5424 |
1783 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1784 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1785 | MARK - stack_base + 1, |
1786 | items); |
a0d0e21e |
1787 | stack_sp = stack_base + items; |
1788 | } |
1789 | else { |
748a9306 |
1790 | I32 markix = TOPMARK; |
1791 | |
a0d0e21e |
1792 | PUTBACK; |
67955e0c |
1793 | |
1794 | if (!hasargs) { |
1795 | /* Need to copy @_ to stack. Alternative may be to |
1796 | * switch stack to @_, and copy return values |
1797 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
1798 | AV* av = GvAV(defgv); |
1799 | I32 items = AvFILL(av) + 1; |
1800 | |
1801 | if (items) { |
1802 | /* Mark is at the end of the stack. */ |
1803 | EXTEND(sp, items); |
1804 | Copy(AvARRAY(av), sp + 1, items, SV*); |
1805 | sp += items; |
1806 | PUTBACK ; |
1807 | } |
1808 | } |
1809 | if (curcopdb) { /* We assume that the first |
1810 | XSUB in &DB::sub is the |
1811 | called one. */ |
1812 | SAVESPTR(curcop); |
1813 | curcop = curcopdb; |
1814 | curcopdb = NULL; |
1815 | } |
1816 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
1817 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
1818 | |
1819 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
1820 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
1821 | if (markix > stack_sp - stack_base) |
1822 | *(stack_base + markix) = &sv_undef; |
1823 | else |
1824 | *(stack_base + markix) = *stack_sp; |
1825 | stack_sp = stack_base + markix; |
1826 | } |
a0d0e21e |
1827 | } |
1828 | LEAVE; |
1829 | return NORMAL; |
1830 | } |
1831 | else { |
1832 | dMARK; |
1833 | register I32 items = SP - MARK; |
a0d0e21e |
1834 | AV* padlist = CvPADLIST(cv); |
1835 | SV** svp = AvARRAY(padlist); |
1836 | push_return(op->op_next); |
1837 | PUSHBLOCK(cx, CXt_SUB, MARK); |
1838 | PUSHSUB(cx); |
1839 | CvDEPTH(cv)++; |
1840 | if (CvDEPTH(cv) < 2) |
1841 | (void)SvREFCNT_inc(cv); |
1842 | else { /* save temporaries on recursion? */ |
1843 | if (CvDEPTH(cv) == 100 && dowarn) |
1844 | warn("Deep recursion on subroutine \"%s\"",GvENAME(CvGV(cv))); |
1845 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1846 | AV *av; |
1847 | AV *newpad = newAV(); |
4aa0a1f7 |
1848 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1849 | I32 ix = AvFILL((AV*)svp[1]); |
1850 | svp = AvARRAY(svp[0]); |
748a9306 |
1851 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1852 | if (svp[ix] != &sv_undef) { |
748a9306 |
1853 | char *name = SvPVX(svp[ix]); |
1854 | if (SvFLAGS(svp[ix]) & SVf_FAKE) { /* outer lexical? */ |
1855 | av_store(newpad, ix, |
4aa0a1f7 |
1856 | SvREFCNT_inc(oldpad[ix]) ); |
748a9306 |
1857 | } |
1858 | else { /* our own lexical */ |
1859 | if (*name == '@') |
1860 | av_store(newpad, ix, sv = (SV*)newAV()); |
1861 | else if (*name == '%') |
1862 | av_store(newpad, ix, sv = (SV*)newHV()); |
1863 | else |
1864 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1865 | SvPADMY_on(sv); |
1866 | } |
a0d0e21e |
1867 | } |
1868 | else { |
748a9306 |
1869 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1870 | SvPADTMP_on(sv); |
1871 | } |
1872 | } |
1873 | av = newAV(); /* will be @_ */ |
1874 | av_extend(av, 0); |
1875 | av_store(newpad, 0, (SV*)av); |
1876 | AvFLAGS(av) = AVf_REIFY; |
1877 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1878 | AvFILL(padlist) = CvDEPTH(cv); |
1879 | svp = AvARRAY(padlist); |
1880 | } |
1881 | } |
1882 | SAVESPTR(curpad); |
1883 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1884 | if (hasargs) { |
1885 | AV* av = (AV*)curpad[0]; |
1886 | SV** ary; |
1887 | |
1888 | if (AvREAL(av)) { |
1889 | av_clear(av); |
1890 | AvREAL_off(av); |
1891 | } |
1892 | cx->blk_sub.savearray = GvAV(defgv); |
1893 | cx->blk_sub.argarray = av; |
1894 | GvAV(defgv) = cx->blk_sub.argarray; |
1895 | ++MARK; |
1896 | |
1897 | if (items > AvMAX(av) + 1) { |
1898 | ary = AvALLOC(av); |
1899 | if (AvARRAY(av) != ary) { |
1900 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1901 | SvPVX(av) = (char*)ary; |
1902 | } |
1903 | if (items > AvMAX(av) + 1) { |
1904 | AvMAX(av) = items - 1; |
1905 | Renew(ary,items,SV*); |
1906 | AvALLOC(av) = ary; |
1907 | SvPVX(av) = (char*)ary; |
1908 | } |
1909 | } |
1910 | Copy(MARK,AvARRAY(av),items,SV*); |
1911 | AvFILL(av) = items - 1; |
1912 | |
1913 | while (items--) { |
1914 | if (*MARK) |
1915 | SvTEMP_off(*MARK); |
1916 | MARK++; |
1917 | } |
1918 | } |
1919 | RETURNOP(CvSTART(cv)); |
1920 | } |
1921 | } |
1922 | |
1923 | PP(pp_aelem) |
1924 | { |
1925 | dSP; |
1926 | SV** svp; |
748a9306 |
1927 | I32 elem = POPi; |
a0d0e21e |
1928 | AV *av = (AV*)POPs; |
1929 | I32 lval = op->op_flags & OPf_MOD; |
1930 | |
748a9306 |
1931 | if (elem > 0) |
1932 | elem -= curcop->cop_arybase; |
a0d0e21e |
1933 | if (SvTYPE(av) != SVt_PVAV) |
1934 | RETPUSHUNDEF; |
1935 | svp = av_fetch(av, elem, lval); |
1936 | if (lval) { |
1937 | if (!svp || *svp == &sv_undef) |
1938 | DIE(no_aelem, elem); |
1939 | if (op->op_private & OPpLVAL_INTRO) |
1940 | save_svref(svp); |
02a9e968 |
1941 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
1942 | provide_ref(op, *svp); |
a0d0e21e |
1943 | } |
1944 | PUSHs(svp ? *svp : &sv_undef); |
1945 | RETURN; |
1946 | } |
1947 | |
02a9e968 |
1948 | void |
1949 | provide_ref(op, sv) |
1950 | OP* op; |
1951 | SV* sv; |
1952 | { |
1953 | if (SvGMAGICAL(sv)) |
1954 | mg_get(sv); |
1955 | if (!SvOK(sv)) { |
1956 | if (SvREADONLY(sv)) |
1957 | croak(no_modify); |
1958 | (void)SvUPGRADE(sv, SVt_RV); |
1959 | SvRV(sv) = (op->op_private & OPpDEREF_HV ? |
1960 | (SV*)newHV() : (SV*)newAV()); |
1961 | SvROK_on(sv); |
1962 | SvSETMAGIC(sv); |
1963 | } |
1964 | } |
1965 | |
a0d0e21e |
1966 | PP(pp_method) |
1967 | { |
1968 | dSP; |
1969 | SV* sv; |
1970 | SV* ob; |
1971 | GV* gv; |
1972 | SV* nm; |
1973 | |
1974 | nm = TOPs; |
1975 | sv = *(stack_base + TOPMARK + 1); |
1976 | |
1977 | gv = 0; |
16d20bd9 |
1978 | if (SvGMAGICAL(sv)) |
1979 | mg_get(sv); |
a0d0e21e |
1980 | if (SvROK(sv)) |
16d20bd9 |
1981 | ob = (SV*)SvRV(sv); |
a0d0e21e |
1982 | else { |
1983 | GV* iogv; |
1984 | char* packname = 0; |
67955e0c |
1985 | STRLEN packlen; |
a0d0e21e |
1986 | |
1987 | if (!SvOK(sv) || |
67955e0c |
1988 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
1989 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
1990 | !(ob=(SV*)GvIO(iogv))) |
1991 | { |
1992 | char *name = SvPV(nm, na); |
1993 | HV *stash; |
1994 | if (!packname || !isALPHA(*packname)) |
1995 | DIE("Can't call method \"%s\" without a package or object reference", name); |
67955e0c |
1996 | if (!(stash = gv_stashpvn(packname, packlen, FALSE))) { |
1997 | if (gv_stashpvn("UNIVERSAL", 9, FALSE)) |
1998 | stash = gv_stashpvn(packname, packlen, TRUE); |
a0d0e21e |
1999 | else |
2000 | DIE("Can't call method \"%s\" in empty package \"%s\"", |
2001 | name, packname); |
2002 | } |
2003 | gv = gv_fetchmethod(stash,name); |
2004 | if (!gv) |
2005 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2006 | name, packname); |
67955e0c |
2007 | SETs((SV*)gv); |
a0d0e21e |
2008 | RETURN; |
2009 | } |
67955e0c |
2010 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2011 | } |
2012 | |
2013 | if (!ob || !SvOBJECT(ob)) { |
2014 | char *name = SvPV(nm, na); |
2015 | DIE("Can't call method \"%s\" on unblessed reference", name); |
2016 | } |
2017 | |
2018 | if (!gv) { /* nothing cached */ |
2019 | char *name = SvPV(nm, na); |
2020 | gv = gv_fetchmethod(SvSTASH(ob),name); |
2021 | if (!gv) |
2022 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2023 | name, HvNAME(SvSTASH(ob))); |
2024 | } |
2025 | |
67955e0c |
2026 | SETs((SV*)gv); |
a0d0e21e |
2027 | RETURN; |
2028 | } |
2029 | |