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")) |
8ebc5c01 |
100 | ref = (SV*)GvCVu(gv); |
c07a80fd |
101 | break; |
102 | case 'F': |
36477c24 |
103 | if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */ |
c07a80fd |
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; |
36477c24 |
114 | case 'I': |
115 | if (strEQ(elem, "IO")) |
116 | ref = (SV*)GvIOp(gv); |
117 | break; |
c07a80fd |
118 | case 'N': |
119 | if (strEQ(elem, "NAME")) |
120 | sv = newSVpv(GvNAME(gv), GvNAMELEN(gv)); |
121 | break; |
122 | case 'P': |
123 | if (strEQ(elem, "PACKAGE")) |
124 | sv = newSVpv(HvNAME(GvSTASH(gv)), 0); |
125 | break; |
126 | case 'S': |
127 | if (strEQ(elem, "SCALAR")) |
128 | ref = GvSV(gv); |
129 | break; |
130 | } |
131 | if (ref) |
132 | sv = newRV(ref); |
133 | if (sv) |
134 | sv_2mortal(sv); |
135 | else |
136 | sv = &sv_undef; |
137 | XPUSHs(sv); |
138 | RETURN; |
139 | } |
140 | |
a0d0e21e |
141 | PP(pp_and) |
142 | { |
143 | dSP; |
144 | if (!SvTRUE(TOPs)) |
145 | RETURN; |
146 | else { |
147 | --SP; |
148 | RETURNOP(cLOGOP->op_other); |
149 | } |
150 | } |
151 | |
152 | PP(pp_sassign) |
153 | { |
154 | dSP; dPOPTOPssrl; |
748a9306 |
155 | MAGIC *mg; |
156 | |
a0d0e21e |
157 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
158 | SV *temp; |
159 | temp = left; left = right; right = temp; |
160 | } |
bbce6d69 |
161 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e |
162 | TAINT_NOT; |
a0d0e21e |
163 | SvSetSV(right, left); |
164 | SvSETMAGIC(right); |
165 | SETs(right); |
166 | RETURN; |
167 | } |
168 | |
169 | PP(pp_cond_expr) |
170 | { |
171 | dSP; |
172 | if (SvTRUEx(POPs)) |
173 | RETURNOP(cCONDOP->op_true); |
174 | else |
175 | RETURNOP(cCONDOP->op_false); |
176 | } |
177 | |
178 | PP(pp_unstack) |
179 | { |
180 | I32 oldsave; |
181 | TAINT_NOT; /* Each statement is presumed innocent */ |
182 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
183 | FREETMPS; |
184 | oldsave = scopestack[scopestack_ix - 1]; |
185 | LEAVE_SCOPE(oldsave); |
186 | return NORMAL; |
187 | } |
188 | |
a0d0e21e |
189 | PP(pp_concat) |
190 | { |
748a9306 |
191 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
192 | { |
193 | dPOPTOPssrl; |
a0d0e21e |
194 | STRLEN len; |
195 | char *s; |
196 | if (TARG != left) { |
197 | s = SvPV(left,len); |
198 | sv_setpvn(TARG,s,len); |
199 | } |
c07a80fd |
200 | else if (SvGMAGICAL(TARG)) |
201 | mg_get(TARG); |
7a4c00b4 |
202 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
203 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
204 | s = SvPV_force(TARG, len); |
4633a7c4 |
205 | } |
a0d0e21e |
206 | s = SvPV(right,len); |
207 | sv_catpvn(TARG,s,len); |
208 | SETTARG; |
209 | RETURN; |
748a9306 |
210 | } |
a0d0e21e |
211 | } |
212 | |
213 | PP(pp_padsv) |
214 | { |
215 | dSP; dTARGET; |
216 | XPUSHs(TARG); |
4633a7c4 |
217 | if (op->op_flags & OPf_MOD) { |
218 | if (op->op_private & OPpLVAL_INTRO) |
219 | SAVECLEARSV(curpad[op->op_targ]); |
5f05dabc |
220 | else if (op->op_private & OPpDEREF) |
02a9e968 |
221 | provide_ref(op, curpad[op->op_targ]); |
4633a7c4 |
222 | } |
a0d0e21e |
223 | RETURN; |
224 | } |
225 | |
226 | PP(pp_readline) |
227 | { |
228 | last_in_gv = (GV*)(*stack_sp--); |
229 | return do_readline(); |
230 | } |
231 | |
232 | PP(pp_eq) |
233 | { |
234 | dSP; tryAMAGICbinSET(eq,0); |
235 | { |
236 | dPOPnv; |
237 | SETs((TOPn == value) ? &sv_yes : &sv_no); |
238 | RETURN; |
239 | } |
240 | } |
241 | |
242 | PP(pp_preinc) |
243 | { |
244 | dSP; |
44a8e56a |
245 | if (SvREADONLY(TOPs)) |
246 | croak(no_modify); |
55497cff |
247 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
248 | SvIVX(TOPs) != IV_MAX) |
249 | { |
250 | ++SvIVX(TOPs); |
251 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
252 | } |
253 | else |
254 | sv_inc(TOPs); |
a0d0e21e |
255 | SvSETMAGIC(TOPs); |
256 | return NORMAL; |
257 | } |
258 | |
259 | PP(pp_or) |
260 | { |
261 | dSP; |
262 | if (SvTRUE(TOPs)) |
263 | RETURN; |
264 | else { |
265 | --SP; |
266 | RETURNOP(cLOGOP->op_other); |
267 | } |
268 | } |
269 | |
270 | PP(pp_add) |
271 | { |
272 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
273 | { |
7a4c00b4 |
274 | dPOPTOPnnrl_ul; |
a0d0e21e |
275 | SETn( left + right ); |
276 | RETURN; |
277 | } |
278 | } |
279 | |
280 | PP(pp_aelemfast) |
281 | { |
282 | dSP; |
283 | AV *av = GvAV((GV*)cSVOP->op_sv); |
284 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
285 | PUSHs(svp ? *svp : &sv_undef); |
286 | RETURN; |
287 | } |
288 | |
289 | PP(pp_join) |
290 | { |
291 | dSP; dMARK; dTARGET; |
292 | MARK++; |
293 | do_join(TARG, *MARK, MARK, SP); |
294 | SP = MARK; |
295 | SETs(TARG); |
296 | RETURN; |
297 | } |
298 | |
299 | PP(pp_pushre) |
300 | { |
301 | dSP; |
44a8e56a |
302 | #ifdef DEBUGGING |
303 | /* |
304 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
305 | * will be enough to hold an OP*. |
306 | */ |
307 | SV* sv = sv_newmortal(); |
308 | sv_upgrade(sv, SVt_PVLV); |
309 | LvTYPE(sv) = '/'; |
310 | Copy(&op, &LvTARGOFF(sv), 1, OP*); |
311 | XPUSHs(sv); |
312 | #else |
a0d0e21e |
313 | XPUSHs((SV*)op); |
44a8e56a |
314 | #endif |
a0d0e21e |
315 | RETURN; |
316 | } |
317 | |
318 | /* Oversized hot code. */ |
319 | |
320 | PP(pp_print) |
321 | { |
322 | dSP; dMARK; dORIGMARK; |
323 | GV *gv; |
324 | IO *io; |
760ac839 |
325 | register PerlIO *fp; |
236988e4 |
326 | MAGIC *mg; |
a0d0e21e |
327 | |
328 | if (op->op_flags & OPf_STACKED) |
329 | gv = (GV*)*++MARK; |
330 | else |
331 | gv = defoutgv; |
236988e4 |
332 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
333 | SV *sv; |
334 | |
335 | PUSHMARK(MARK-1); |
336 | *MARK = mg->mg_obj; |
337 | ENTER; |
338 | perl_call_method("PRINT", G_SCALAR); |
339 | LEAVE; |
340 | SPAGAIN; |
341 | sv = POPs; |
342 | SP = ORIGMARK; |
343 | PUSHs(sv); |
344 | RETURN; |
345 | } |
a0d0e21e |
346 | if (!(io = GvIO(gv))) { |
748a9306 |
347 | if (dowarn) { |
348 | SV* sv = sv_newmortal(); |
4f732624 |
349 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
350 | warn("Filehandle %s never opened", SvPV(sv,na)); |
351 | } |
352 | |
353 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
354 | goto just_say_no; |
355 | } |
356 | else if (!(fp = IoOFP(io))) { |
357 | if (dowarn) { |
748a9306 |
358 | SV* sv = sv_newmortal(); |
4f732624 |
359 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
360 | if (IoIFP(io)) |
748a9306 |
361 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
362 | else |
748a9306 |
363 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
364 | } |
748a9306 |
365 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
366 | goto just_say_no; |
367 | } |
368 | else { |
369 | MARK++; |
370 | if (ofslen) { |
371 | while (MARK <= SP) { |
372 | if (!do_print(*MARK, fp)) |
373 | break; |
374 | MARK++; |
375 | if (MARK <= SP) { |
760ac839 |
376 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
377 | MARK--; |
378 | break; |
379 | } |
380 | } |
381 | } |
382 | } |
383 | else { |
384 | while (MARK <= SP) { |
385 | if (!do_print(*MARK, fp)) |
386 | break; |
387 | MARK++; |
388 | } |
389 | } |
390 | if (MARK <= SP) |
391 | goto just_say_no; |
392 | else { |
393 | if (orslen) |
760ac839 |
394 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
395 | goto just_say_no; |
396 | |
397 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
398 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
399 | goto just_say_no; |
400 | } |
401 | } |
402 | SP = ORIGMARK; |
403 | PUSHs(&sv_yes); |
404 | RETURN; |
405 | |
406 | just_say_no: |
407 | SP = ORIGMARK; |
408 | PUSHs(&sv_undef); |
409 | RETURN; |
410 | } |
411 | |
412 | PP(pp_rv2av) |
413 | { |
414 | dSP; dPOPss; |
415 | |
416 | AV *av; |
417 | |
418 | if (SvROK(sv)) { |
419 | wasref: |
420 | av = (AV*)SvRV(sv); |
421 | if (SvTYPE(av) != SVt_PVAV) |
422 | DIE("Not an ARRAY reference"); |
423 | if (op->op_private & OPpLVAL_INTRO) |
424 | av = (AV*)save_svref((SV**)sv); |
425 | if (op->op_flags & OPf_REF) { |
426 | PUSHs((SV*)av); |
427 | RETURN; |
428 | } |
429 | } |
430 | else { |
431 | if (SvTYPE(sv) == SVt_PVAV) { |
432 | av = (AV*)sv; |
433 | if (op->op_flags & OPf_REF) { |
434 | PUSHs((SV*)av); |
435 | RETURN; |
436 | } |
437 | } |
438 | else { |
67955e0c |
439 | GV *gv; |
440 | |
a0d0e21e |
441 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
442 | char *sym; |
443 | |
a0d0e21e |
444 | if (SvGMAGICAL(sv)) { |
445 | mg_get(sv); |
446 | if (SvROK(sv)) |
447 | goto wasref; |
448 | } |
449 | if (!SvOK(sv)) { |
450 | if (op->op_flags & OPf_REF || |
451 | op->op_private & HINT_STRICT_REFS) |
452 | DIE(no_usym, "an ARRAY"); |
4633a7c4 |
453 | if (GIMME == G_ARRAY) |
454 | RETURN; |
a0d0e21e |
455 | RETPUSHUNDEF; |
456 | } |
748a9306 |
457 | sym = SvPV(sv,na); |
a0d0e21e |
458 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
459 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
460 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
461 | } else { |
462 | gv = (GV*)sv; |
a0d0e21e |
463 | } |
67955e0c |
464 | av = GvAVn(gv); |
a0d0e21e |
465 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
466 | av = save_ary(gv); |
a0d0e21e |
467 | if (op->op_flags & OPf_REF) { |
468 | PUSHs((SV*)av); |
469 | RETURN; |
470 | } |
471 | } |
472 | } |
473 | |
474 | if (GIMME == G_ARRAY) { |
475 | I32 maxarg = AvFILL(av) + 1; |
476 | EXTEND(SP, maxarg); |
477 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
478 | SP += maxarg; |
479 | } |
480 | else { |
481 | dTARGET; |
482 | I32 maxarg = AvFILL(av) + 1; |
483 | PUSHi(maxarg); |
484 | } |
485 | RETURN; |
486 | } |
487 | |
488 | PP(pp_rv2hv) |
489 | { |
490 | |
491 | dSP; dTOPss; |
492 | |
493 | HV *hv; |
494 | |
495 | if (SvROK(sv)) { |
496 | wasref: |
497 | hv = (HV*)SvRV(sv); |
498 | if (SvTYPE(hv) != SVt_PVHV) |
499 | DIE("Not a HASH reference"); |
500 | if (op->op_private & OPpLVAL_INTRO) |
501 | hv = (HV*)save_svref((SV**)sv); |
502 | if (op->op_flags & OPf_REF) { |
503 | SETs((SV*)hv); |
504 | RETURN; |
505 | } |
506 | } |
507 | else { |
508 | if (SvTYPE(sv) == SVt_PVHV) { |
509 | hv = (HV*)sv; |
510 | if (op->op_flags & OPf_REF) { |
511 | SETs((SV*)hv); |
512 | RETURN; |
513 | } |
514 | } |
515 | else { |
67955e0c |
516 | GV *gv; |
517 | |
a0d0e21e |
518 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
519 | char *sym; |
520 | |
a0d0e21e |
521 | if (SvGMAGICAL(sv)) { |
522 | mg_get(sv); |
523 | if (SvROK(sv)) |
524 | goto wasref; |
525 | } |
526 | if (!SvOK(sv)) { |
527 | if (op->op_flags & OPf_REF || |
528 | op->op_private & HINT_STRICT_REFS) |
529 | DIE(no_usym, "a HASH"); |
4633a7c4 |
530 | if (GIMME == G_ARRAY) { |
531 | SP--; |
532 | RETURN; |
533 | } |
a0d0e21e |
534 | RETSETUNDEF; |
535 | } |
748a9306 |
536 | sym = SvPV(sv,na); |
a0d0e21e |
537 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
538 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
539 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
540 | } else { |
541 | gv = (GV*)sv; |
a0d0e21e |
542 | } |
67955e0c |
543 | hv = GvHVn(gv); |
a0d0e21e |
544 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
545 | hv = save_hash(gv); |
a0d0e21e |
546 | if (op->op_flags & OPf_REF) { |
547 | SETs((SV*)hv); |
548 | RETURN; |
549 | } |
550 | } |
551 | } |
552 | |
553 | if (GIMME == G_ARRAY) { /* array wanted */ |
554 | *stack_sp = (SV*)hv; |
555 | return do_kv(ARGS); |
556 | } |
557 | else { |
558 | dTARGET; |
559 | if (HvFILL(hv)) { |
560 | sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1); |
561 | sv_setpv(TARG, buf); |
562 | } |
563 | else |
564 | sv_setiv(TARG, 0); |
565 | SETTARG; |
566 | RETURN; |
567 | } |
568 | } |
569 | |
570 | PP(pp_aassign) |
571 | { |
572 | dSP; |
573 | SV **lastlelem = stack_sp; |
574 | SV **lastrelem = stack_base + POPMARK; |
575 | SV **firstrelem = stack_base + POPMARK + 1; |
576 | SV **firstlelem = lastrelem + 1; |
577 | |
578 | register SV **relem; |
579 | register SV **lelem; |
580 | |
581 | register SV *sv; |
582 | register AV *ary; |
583 | |
584 | HV *hash; |
585 | I32 i; |
586 | int magic; |
587 | |
588 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
589 | |
590 | /* If there's a common identifier on both sides we have to take |
591 | * special care that assigning the identifier on the left doesn't |
592 | * clobber a value on the right that's used later in the list. |
593 | */ |
594 | if (op->op_private & OPpASSIGN_COMMON) { |
595 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
596 | /*SUPPRESS 560*/ |
597 | if (sv = *relem) |
598 | *relem = sv_mortalcopy(sv); |
599 | } |
600 | } |
601 | |
602 | relem = firstrelem; |
603 | lelem = firstlelem; |
604 | ary = Null(AV*); |
605 | hash = Null(HV*); |
606 | while (lelem <= lastlelem) { |
bbce6d69 |
607 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
608 | sv = *lelem++; |
609 | switch (SvTYPE(sv)) { |
610 | case SVt_PVAV: |
611 | ary = (AV*)sv; |
748a9306 |
612 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
613 | |
614 | av_clear(ary); |
7e42bd57 |
615 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
616 | i = 0; |
617 | while (relem <= lastrelem) { /* gobble up all the rest */ |
618 | sv = NEWSV(28,0); |
619 | assert(*relem); |
620 | sv_setsv(sv,*relem); |
621 | *(relem++) = sv; |
622 | (void)av_store(ary,i++,sv); |
623 | if (magic) |
624 | mg_set(sv); |
bbce6d69 |
625 | TAINT_NOT; |
a0d0e21e |
626 | } |
627 | break; |
628 | case SVt_PVHV: { |
a0d0e21e |
629 | SV *tmpstr; |
630 | |
631 | hash = (HV*)sv; |
748a9306 |
632 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
633 | hv_clear(hash); |
634 | |
635 | while (relem < lastrelem) { /* gobble up all the rest */ |
636 | STRLEN len; |
4633a7c4 |
637 | if (*relem) |
a0d0e21e |
638 | sv = *(relem++); |
4633a7c4 |
639 | else |
a0d0e21e |
640 | sv = &sv_no, relem++; |
a0d0e21e |
641 | tmpstr = NEWSV(29,0); |
642 | if (*relem) |
643 | sv_setsv(tmpstr,*relem); /* value */ |
644 | *(relem++) = tmpstr; |
760ac839 |
645 | (void)hv_store_ent(hash,sv,tmpstr,0); |
a0d0e21e |
646 | if (magic) |
647 | mg_set(tmpstr); |
bbce6d69 |
648 | TAINT_NOT; |
8e07c86e |
649 | } |
760ac839 |
650 | if (relem == lastrelem) |
651 | warn("Odd number of elements in hash list"); |
a0d0e21e |
652 | } |
653 | break; |
654 | default: |
655 | if (SvTHINKFIRST(sv)) { |
656 | if (SvREADONLY(sv) && curcop != &compiling) { |
657 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
658 | DIE(no_modify); |
659 | if (relem <= lastrelem) |
660 | relem++; |
661 | break; |
662 | } |
663 | if (SvROK(sv)) |
664 | sv_unref(sv); |
665 | } |
666 | if (relem <= lastrelem) { |
667 | sv_setsv(sv, *relem); |
668 | *(relem++) = sv; |
669 | } |
670 | else |
671 | sv_setsv(sv, &sv_undef); |
672 | SvSETMAGIC(sv); |
673 | break; |
674 | } |
675 | } |
676 | if (delaymagic & ~DM_DELAY) { |
677 | if (delaymagic & DM_UID) { |
678 | #ifdef HAS_SETRESUID |
679 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
680 | #else |
681 | # ifdef HAS_SETREUID |
a0d0e21e |
682 | (void)setreuid(uid,euid); |
56febc5e |
683 | # else |
684 | # ifdef HAS_SETRUID |
a0d0e21e |
685 | if ((delaymagic & DM_UID) == DM_RUID) { |
686 | (void)setruid(uid); |
748a9306 |
687 | delaymagic &= ~DM_RUID; |
a0d0e21e |
688 | } |
56febc5e |
689 | # endif /* HAS_SETRUID */ |
690 | # ifdef HAS_SETEUID |
a0d0e21e |
691 | if ((delaymagic & DM_UID) == DM_EUID) { |
692 | (void)seteuid(uid); |
748a9306 |
693 | delaymagic &= ~DM_EUID; |
a0d0e21e |
694 | } |
56febc5e |
695 | # endif /* HAS_SETEUID */ |
a0d0e21e |
696 | if (delaymagic & DM_UID) { |
697 | if (uid != euid) |
698 | DIE("No setreuid available"); |
699 | (void)setuid(uid); |
700 | } |
56febc5e |
701 | # endif /* HAS_SETREUID */ |
702 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
703 | uid = (int)getuid(); |
704 | euid = (int)geteuid(); |
705 | } |
706 | if (delaymagic & DM_GID) { |
707 | #ifdef HAS_SETRESGID |
708 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
709 | #else |
710 | # ifdef HAS_SETREGID |
a0d0e21e |
711 | (void)setregid(gid,egid); |
56febc5e |
712 | # else |
713 | # ifdef HAS_SETRGID |
a0d0e21e |
714 | if ((delaymagic & DM_GID) == DM_RGID) { |
715 | (void)setrgid(gid); |
748a9306 |
716 | delaymagic &= ~DM_RGID; |
a0d0e21e |
717 | } |
56febc5e |
718 | # endif /* HAS_SETRGID */ |
719 | # ifdef HAS_SETEGID |
a0d0e21e |
720 | if ((delaymagic & DM_GID) == DM_EGID) { |
721 | (void)setegid(gid); |
748a9306 |
722 | delaymagic &= ~DM_EGID; |
a0d0e21e |
723 | } |
56febc5e |
724 | # endif /* HAS_SETEGID */ |
a0d0e21e |
725 | if (delaymagic & DM_GID) { |
726 | if (gid != egid) |
727 | DIE("No setregid available"); |
728 | (void)setgid(gid); |
729 | } |
56febc5e |
730 | # endif /* HAS_SETREGID */ |
731 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
732 | gid = (int)getgid(); |
733 | egid = (int)getegid(); |
734 | } |
4633a7c4 |
735 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
736 | } |
737 | delaymagic = 0; |
738 | if (GIMME == G_ARRAY) { |
739 | if (ary || hash) |
740 | SP = lastrelem; |
741 | else |
742 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
743 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
744 | while (relem <= SP) |
0c8c7a05 |
745 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e |
746 | RETURN; |
747 | } |
748 | else { |
4633a7c4 |
749 | dTARGET; |
a0d0e21e |
750 | SP = firstrelem; |
a0d0e21e |
751 | |
4633a7c4 |
752 | SETi(lastrelem - firstrelem + 1); |
753 | RETURN; |
a0d0e21e |
754 | } |
755 | } |
756 | |
757 | PP(pp_match) |
758 | { |
759 | dSP; dTARG; |
760 | register PMOP *pm = cPMOP; |
761 | register char *t; |
762 | register char *s; |
763 | char *strend; |
764 | I32 global; |
765 | I32 safebase; |
766 | char *truebase; |
767 | register REGEXP *rx = pm->op_pmregexp; |
768 | I32 gimme = GIMME; |
769 | STRLEN len; |
748a9306 |
770 | I32 minmatch = 0; |
4633a7c4 |
771 | I32 oldsave = savestack_ix; |
f86702cc |
772 | I32 update_minmatch = 1; |
a0d0e21e |
773 | |
774 | if (op->op_flags & OPf_STACKED) |
775 | TARG = POPs; |
776 | else { |
777 | TARG = GvSV(defgv); |
778 | EXTEND(SP,1); |
779 | } |
780 | s = SvPV(TARG, len); |
781 | strend = s + len; |
782 | if (!s) |
783 | DIE("panic: do_match"); |
9212bbba |
784 | TAINT_NOT; |
a0d0e21e |
785 | |
786 | if (pm->op_pmflags & PMf_USED) { |
787 | if (gimme == G_ARRAY) |
788 | RETURN; |
789 | RETPUSHNO; |
790 | } |
791 | |
792 | if (!rx->prelen && curpm) { |
793 | pm = curpm; |
794 | rx = pm->op_pmregexp; |
795 | } |
796 | truebase = t = s; |
797 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
798 | rx->startp[0] = 0; |
799 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
800 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
801 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
802 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
803 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
804 | update_minmatch = 0; |
748a9306 |
805 | } |
a0d0e21e |
806 | } |
807 | } |
748a9306 |
808 | if (!rx->nparens && !global) |
809 | gimme = G_SCALAR; /* accidental array context? */ |
5f05dabc |
810 | safebase = (((gimme == G_ARRAY) || global) && !sawampersand); |
a0d0e21e |
811 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
812 | SAVEINT(multiline); |
813 | multiline = pm->op_pmflags & PMf_MULTILINE; |
814 | } |
815 | |
816 | play_it_again: |
817 | if (global && rx->startp[0]) { |
818 | t = s = rx->endp[0]; |
5f05dabc |
819 | if (s >= strend) |
a0d0e21e |
820 | goto nope; |
f86702cc |
821 | if (update_minmatch++) |
822 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
823 | } |
824 | if (pm->op_pmshort) { |
825 | if (pm->op_pmflags & PMf_SCANFIRST) { |
826 | if (SvSCREAM(TARG)) { |
827 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
828 | goto nope; |
829 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
830 | goto nope; |
831 | else if (pm->op_pmflags & PMf_ALL) |
832 | goto yup; |
833 | } |
834 | else if (!(s = fbm_instr((unsigned char*)s, |
835 | (unsigned char*)strend, pm->op_pmshort))) |
836 | goto nope; |
837 | else if (pm->op_pmflags & PMf_ALL) |
838 | goto yup; |
839 | if (s && rx->regback >= 0) { |
840 | ++BmUSEFUL(pm->op_pmshort); |
841 | s -= rx->regback; |
842 | if (s < t) |
843 | s = t; |
844 | } |
845 | else |
846 | s = t; |
847 | } |
848 | else if (!multiline) { |
bbce6d69 |
849 | if (*SvPVX(pm->op_pmshort) != *s |
850 | || (pm->op_pmslen > 1 |
36477c24 |
851 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
852 | goto nope; |
a0d0e21e |
853 | } |
854 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
855 | SvREFCNT_dec(pm->op_pmshort); |
856 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
857 | } |
858 | } |
e50aee73 |
859 | if (pregexec(rx, s, strend, truebase, minmatch, |
bbce6d69 |
860 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) |
861 | { |
a0d0e21e |
862 | curpm = pm; |
863 | if (pm->op_pmflags & PMf_ONCE) |
864 | pm->op_pmflags |= PMf_USED; |
865 | goto gotcha; |
866 | } |
867 | else |
868 | goto ret_no; |
869 | /*NOTREACHED*/ |
870 | |
871 | gotcha: |
9212bbba |
872 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
873 | if (gimme == G_ARRAY) { |
874 | I32 iters, i, len; |
875 | |
876 | iters = rx->nparens; |
877 | if (global && !iters) |
878 | i = 1; |
879 | else |
880 | i = 0; |
881 | EXTEND(SP, iters + i); |
bbce6d69 |
882 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
883 | for (i = !i; i <= iters; i++) { |
884 | PUSHs(sv_newmortal()); |
885 | /*SUPPRESS 560*/ |
886 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
887 | len = rx->endp[i] - s; |
888 | sv_setpvn(*SP, s, len); |
889 | } |
890 | } |
891 | if (global) { |
892 | truebase = rx->subbeg; |
5f05dabc |
893 | strend = rx->subend; |
a0d0e21e |
894 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
895 | ++rx->endp[0]; |
896 | goto play_it_again; |
897 | } |
4633a7c4 |
898 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
899 | RETURN; |
900 | } |
901 | else { |
902 | if (global) { |
903 | MAGIC* mg = 0; |
904 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
905 | mg = mg_find(TARG, 'g'); |
906 | if (!mg) { |
907 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
908 | mg = mg_find(TARG, 'g'); |
909 | } |
748a9306 |
910 | if (rx->startp[0]) { |
5f05dabc |
911 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 |
912 | if (rx->startp[0] == rx->endp[0]) |
913 | mg->mg_flags |= MGf_MINMATCH; |
914 | else |
915 | mg->mg_flags &= ~MGf_MINMATCH; |
916 | } |
a0d0e21e |
917 | } |
4633a7c4 |
918 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
919 | RETPUSHYES; |
920 | } |
921 | |
922 | yup: |
9212bbba |
923 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
924 | ++BmUSEFUL(pm->op_pmshort); |
925 | curpm = pm; |
926 | if (pm->op_pmflags & PMf_ONCE) |
927 | pm->op_pmflags |= PMf_USED; |
5f05dabc |
928 | Safefree(rx->subbase); |
929 | rx->subbase = Nullch; |
a0d0e21e |
930 | if (global) { |
931 | rx->subbeg = truebase; |
932 | rx->subend = strend; |
933 | rx->startp[0] = s; |
934 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
935 | goto gotcha; |
936 | } |
937 | if (sawampersand) { |
938 | char *tmps; |
939 | |
a0d0e21e |
940 | tmps = rx->subbase = savepvn(t, strend-t); |
941 | rx->subbeg = tmps; |
942 | rx->subend = tmps + (strend-t); |
943 | tmps = rx->startp[0] = tmps + (s - t); |
944 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
945 | } |
4633a7c4 |
946 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
947 | RETPUSHYES; |
948 | |
949 | nope: |
950 | if (pm->op_pmshort) |
951 | ++BmUSEFUL(pm->op_pmshort); |
952 | |
953 | ret_no: |
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; |
e79b0511 |
970 | MAGIC *mg; |
a0d0e21e |
971 | |
e79b0511 |
972 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
973 | PUSHMARK(SP); |
974 | XPUSHs(mg->mg_obj); |
975 | PUTBACK; |
976 | ENTER; |
977 | perl_call_method("READLINE", GIMME); |
978 | LEAVE; |
979 | SPAGAIN; |
8ebc5c01 |
980 | if (GIMME == G_SCALAR) |
981 | SvSetSV_nosteal(TARG, TOPs); |
e79b0511 |
982 | RETURN; |
983 | } |
a0d0e21e |
984 | fp = Nullfp; |
985 | if (io) { |
986 | fp = IoIFP(io); |
987 | if (!fp) { |
988 | if (IoFLAGS(io) & IOf_ARGV) { |
989 | if (IoFLAGS(io) & IOf_START) { |
990 | IoFLAGS(io) &= ~IOf_START; |
991 | IoLINES(io) = 0; |
992 | if (av_len(GvAVn(last_in_gv)) < 0) { |
993 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
994 | av_push(GvAVn(last_in_gv), tmpstr); |
995 | } |
996 | } |
997 | fp = nextargv(last_in_gv); |
998 | if (!fp) { /* Note: fp != IoIFP(io) */ |
999 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
1000 | IoFLAGS(io) |= IOf_START; |
1001 | } |
1002 | } |
1003 | else if (type == OP_GLOB) { |
1004 | SV *tmpcmd = NEWSV(55, 0); |
1005 | SV *tmpglob = POPs; |
1006 | ENTER; |
1007 | SAVEFREESV(tmpcmd); |
1008 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1009 | /* since spawning off a process is a real performance hit */ |
1010 | { |
1011 | #include <descrip.h> |
1012 | #include <lib$routines.h> |
1013 | #include <nam.h> |
1014 | #include <rmsdef.h> |
1015 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1016 | char vmsspec[NAM$C_MAXRSS+1]; |
1017 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1018 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1019 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1020 | PerlIO *tmpfp; |
a0d0e21e |
1021 | STRLEN i; |
1022 | struct dsc$descriptor_s wilddsc |
1023 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1024 | struct dsc$descriptor_vs rsdsc |
1025 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1026 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1027 | |
1028 | /* We could find out if there's an explicit dev/dir or version |
1029 | by peeking into lib$find_file's internal context at |
1030 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1031 | but that's unsupported, so I don't want to do it now and |
1032 | have it bite someone in the future. */ |
1033 | strcat(tmpfnam,tmpnam(NULL)); |
1034 | cp = SvPV(tmpglob,i); |
1035 | for (; i; i--) { |
1036 | if (cp[i] == ';') hasver = 1; |
1037 | if (cp[i] == '.') { |
1038 | if (sts) hasver = 1; |
1039 | else sts = 1; |
1040 | } |
1041 | if (cp[i] == '/') { |
1042 | hasdir = isunix = 1; |
1043 | break; |
748a9306 |
1044 | } |
a0d0e21e |
1045 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1046 | hasdir = 1; |
1047 | break; |
1048 | } |
1049 | } |
760ac839 |
1050 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1051 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1052 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1053 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1054 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1055 | end = rstr + (unsigned long int) *rslt; |
1056 | if (!hasver) while (*end != ';') end--; |
1057 | *(end++) = '\n'; *end = '\0'; |
1058 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1059 | if (hasdir) { |
f86702cc |
1060 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1061 | begin = rstr; |
1062 | } |
1063 | else { |
1064 | begin = end; |
1065 | while (*(--begin) != ']' && *begin != '>') ; |
1066 | ++begin; |
1067 | } |
760ac839 |
1068 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1069 | } |
1070 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1071 | if (ok && sts != RMS$_NMF && |
1072 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1073 | if (!ok) { |
c07a80fd |
1074 | if (!(sts & 1)) { |
1075 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1076 | } |
760ac839 |
1077 | PerlIO_close(tmpfp); |
a0d0e21e |
1078 | fp = NULL; |
1079 | } |
1080 | else { |
760ac839 |
1081 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1082 | IoTYPE(io) = '<'; |
1083 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1084 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1085 | } |
1086 | } |
1087 | } |
1088 | #else /* !VMS */ |
1089 | #ifdef DOSISH |
67955e0c |
1090 | #ifdef OS2 |
1091 | sv_setpv(tmpcmd, "for a in "); |
1092 | sv_catsv(tmpcmd, tmpglob); |
1093 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1094 | #else |
a0d0e21e |
1095 | sv_setpv(tmpcmd, "perlglob "); |
1096 | sv_catsv(tmpcmd, tmpglob); |
1097 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1098 | #endif /* !OS2 */ |
1099 | #else /* !DOSISH */ |
1100 | #if defined(CSH) |
a0d0e21e |
1101 | sv_setpvn(tmpcmd, cshname, cshlen); |
1102 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1103 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1104 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1105 | #else |
1106 | sv_setpv(tmpcmd, "echo "); |
1107 | sv_catsv(tmpcmd, tmpglob); |
1108 | #if 'z' - 'a' == 25 |
1109 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1110 | #else |
1111 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1112 | #endif |
1113 | #endif /* !CSH */ |
67955e0c |
1114 | #endif /* !DOSISH */ |
c07a80fd |
1115 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1116 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1117 | fp = IoIFP(io); |
1118 | #endif /* !VMS */ |
1119 | LEAVE; |
1120 | } |
1121 | } |
1122 | else if (type == OP_GLOB) |
1123 | SP--; |
1124 | } |
1125 | if (!fp) { |
4633a7c4 |
1126 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1127 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
1128 | if (GIMME == G_SCALAR) { |
1129 | (void)SvOK_off(TARG); |
1130 | PUSHTARG; |
1131 | } |
1132 | RETURN; |
1133 | } |
1134 | if (GIMME == G_ARRAY) { |
1135 | sv = sv_2mortal(NEWSV(57, 80)); |
1136 | offset = 0; |
1137 | } |
1138 | else { |
1139 | sv = TARG; |
1140 | (void)SvUPGRADE(sv, SVt_PV); |
1141 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1142 | if (!tmplen) |
1143 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1144 | if (type == OP_RCATLINE) |
1145 | offset = SvCUR(sv); |
1146 | else |
1147 | offset = 0; |
1148 | } |
1149 | for (;;) { |
1150 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1151 | PerlIO_clearerr(fp); |
a0d0e21e |
1152 | if (IoFLAGS(io) & IOf_ARGV) { |
1153 | fp = nextargv(last_in_gv); |
1154 | if (fp) |
1155 | continue; |
1156 | (void)do_close(last_in_gv, FALSE); |
1157 | IoFLAGS(io) |= IOf_START; |
1158 | } |
1159 | else if (type == OP_GLOB) { |
1160 | (void)do_close(last_in_gv, FALSE); |
1161 | } |
1162 | if (GIMME == G_SCALAR) { |
1163 | (void)SvOK_off(TARG); |
1164 | PUSHTARG; |
1165 | } |
1166 | RETURN; |
1167 | } |
bbce6d69 |
1168 | /* This should not be marked tainted if the fp is marked clean */ |
1169 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1170 | TAINT; |
1171 | SvTAINTED_on(sv); |
1172 | } |
a0d0e21e |
1173 | IoLINES(io)++; |
71be2cbc |
1174 | SvSETMAGIC(sv); |
a0d0e21e |
1175 | XPUSHs(sv); |
a0d0e21e |
1176 | if (type == OP_GLOB) { |
1177 | char *tmps; |
1178 | |
c07a80fd |
1179 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1180 | tmps = SvEND(sv) - 1; |
1181 | if (*tmps == *SvPVX(rs)) { |
1182 | *tmps = '\0'; |
1183 | SvCUR(sv)--; |
1184 | } |
1185 | } |
a0d0e21e |
1186 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1187 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1188 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1189 | break; |
1190 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1191 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1192 | continue; |
1193 | } |
1194 | } |
1195 | if (GIMME == G_ARRAY) { |
1196 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1197 | SvLEN_set(sv, SvCUR(sv)+1); |
1198 | Renew(SvPVX(sv), SvLEN(sv), char); |
1199 | } |
1200 | sv = sv_2mortal(NEWSV(58, 80)); |
1201 | continue; |
1202 | } |
1203 | else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
1204 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1205 | if (SvCUR(sv) < 60) |
1206 | SvLEN_set(sv, 80); |
1207 | else |
1208 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1209 | Renew(SvPVX(sv), SvLEN(sv), char); |
1210 | } |
1211 | RETURN; |
1212 | } |
1213 | } |
1214 | |
1215 | PP(pp_enter) |
1216 | { |
1217 | dSP; |
1218 | register CONTEXT *cx; |
1219 | I32 gimme; |
1220 | |
1221 | /* |
1222 | * We don't just use the GIMME macro here because it assumes there's |
1223 | * already a context, which ain't necessarily so at initial startup. |
1224 | */ |
1225 | |
1226 | if (op->op_flags & OPf_KNOW) |
1227 | gimme = op->op_flags & OPf_LIST; |
1228 | else if (cxstack_ix >= 0) |
1229 | gimme = cxstack[cxstack_ix].blk_gimme; |
1230 | else |
1231 | gimme = G_SCALAR; |
1232 | |
1233 | ENTER; |
1234 | |
1235 | SAVETMPS; |
1236 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1237 | |
1238 | RETURN; |
1239 | } |
1240 | |
1241 | PP(pp_helem) |
1242 | { |
1243 | dSP; |
760ac839 |
1244 | HE* he; |
a0d0e21e |
1245 | SV *keysv = POPs; |
a0d0e21e |
1246 | HV *hv = (HV*)POPs; |
1247 | I32 lval = op->op_flags & OPf_MOD; |
1248 | |
1249 | if (SvTYPE(hv) != SVt_PVHV) |
1250 | RETPUSHUNDEF; |
760ac839 |
1251 | he = hv_fetch_ent(hv, keysv, lval, 0); |
a0d0e21e |
1252 | if (lval) { |
760ac839 |
1253 | if (!he || HeVAL(he) == &sv_undef) |
1254 | DIE(no_helem, SvPV(keysv, na)); |
5f05dabc |
1255 | if (op->op_private & OPpLVAL_INTRO) { |
1256 | if (HvNAME(hv) && isGV(HeVAL(he))) |
1257 | save_gp((GV*)HeVAL(he), !(op->op_flags & OPf_SPECIAL)); |
1258 | else |
1259 | save_svref(&HeVAL(he)); |
1260 | } |
1261 | else if (op->op_private & OPpDEREF) |
760ac839 |
1262 | provide_ref(op, HeVAL(he)); |
a0d0e21e |
1263 | } |
760ac839 |
1264 | PUSHs(he ? HeVAL(he) : &sv_undef); |
a0d0e21e |
1265 | RETURN; |
1266 | } |
1267 | |
1268 | PP(pp_leave) |
1269 | { |
1270 | dSP; |
1271 | register CONTEXT *cx; |
1272 | register SV **mark; |
1273 | SV **newsp; |
1274 | PMOP *newpm; |
1275 | I32 gimme; |
1276 | |
1277 | if (op->op_flags & OPf_SPECIAL) { |
1278 | cx = &cxstack[cxstack_ix]; |
1279 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1280 | } |
1281 | |
1282 | POPBLOCK(cx,newpm); |
1283 | |
1284 | if (op->op_flags & OPf_KNOW) |
1285 | gimme = op->op_flags & OPf_LIST; |
1286 | else if (cxstack_ix >= 0) |
1287 | gimme = cxstack[cxstack_ix].blk_gimme; |
1288 | else |
1289 | gimme = G_SCALAR; |
1290 | |
1291 | if (gimme == G_SCALAR) { |
1292 | if (op->op_private & OPpLEAVE_VOID) |
1293 | SP = newsp; |
1294 | else { |
1295 | MARK = newsp + 1; |
1296 | if (MARK <= SP) |
1297 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1298 | *MARK = TOPs; |
1299 | else |
1300 | *MARK = sv_mortalcopy(TOPs); |
1301 | else { |
1302 | MEXTEND(mark,0); |
1303 | *MARK = &sv_undef; |
1304 | } |
1305 | SP = MARK; |
1306 | } |
1307 | } |
1308 | else { |
1309 | for (mark = newsp + 1; mark <= SP; mark++) |
1310 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
1311 | *mark = sv_mortalcopy(*mark); |
1312 | /* in case LEAVE wipes old return values */ |
1313 | } |
1314 | curpm = newpm; /* Don't pop $1 et al till now */ |
1315 | |
1316 | LEAVE; |
1317 | |
1318 | RETURN; |
1319 | } |
1320 | |
1321 | PP(pp_iter) |
1322 | { |
1323 | dSP; |
1324 | register CONTEXT *cx; |
5f05dabc |
1325 | SV* sv; |
4633a7c4 |
1326 | AV* av; |
a0d0e21e |
1327 | |
1328 | EXTEND(sp, 1); |
1329 | cx = &cxstack[cxstack_ix]; |
1330 | if (cx->cx_type != CXt_LOOP) |
1331 | DIE("panic: pp_iter"); |
1332 | |
71be2cbc |
1333 | av = cx->blk_loop.iterary; |
1334 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
a0d0e21e |
1335 | RETPUSHNO; |
1336 | |
7a4c00b4 |
1337 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1338 | |
5f05dabc |
1339 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1340 | SvTEMP_off(sv); |
a0d0e21e |
1341 | else |
5f05dabc |
1342 | sv = &sv_undef; |
1343 | if (av != curstack && SvIMMORTAL(sv)) { |
1344 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1345 | if (lv && SvREFCNT(lv) > 1) { |
1346 | SvREFCNT_dec(lv); |
1347 | lv = Nullsv; |
1348 | } |
5f05dabc |
1349 | if (lv) |
1350 | SvREFCNT_dec(LvTARG(lv)); |
1351 | else { |
1352 | lv = cx->blk_loop.iterlval = newSVsv(sv); |
1353 | sv_upgrade(lv, SVt_PVLV); |
1354 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
1355 | LvTYPE(lv) = 'y'; |
1356 | } |
1357 | LvTARG(lv) = SvREFCNT_inc(av); |
1358 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
1359 | LvTARGLEN(lv) = 1; |
1360 | sv = (SV*)lv; |
1361 | } |
7a4c00b4 |
1362 | |
1363 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1364 | RETPUSHYES; |
1365 | } |
1366 | |
1367 | PP(pp_subst) |
1368 | { |
1369 | dSP; dTARG; |
1370 | register PMOP *pm = cPMOP; |
1371 | PMOP *rpm = pm; |
1372 | register SV *dstr; |
1373 | register char *s; |
1374 | char *strend; |
1375 | register char *m; |
1376 | char *c; |
1377 | register char *d; |
1378 | STRLEN clen; |
1379 | I32 iters = 0; |
1380 | I32 maxiters; |
1381 | register I32 i; |
1382 | bool once; |
71be2cbc |
1383 | bool rxtainted; |
a0d0e21e |
1384 | char *orig; |
1385 | I32 safebase; |
1386 | register REGEXP *rx = pm->op_pmregexp; |
1387 | STRLEN len; |
1388 | int force_on_match = 0; |
4633a7c4 |
1389 | I32 oldsave = savestack_ix; |
a0d0e21e |
1390 | |
1391 | if (pm->op_pmflags & PMf_CONST) /* known replacement string? */ |
1392 | dstr = POPs; |
1393 | if (op->op_flags & OPf_STACKED) |
1394 | TARG = POPs; |
1395 | else { |
1396 | TARG = GvSV(defgv); |
1397 | EXTEND(SP,1); |
1398 | } |
1399 | s = SvPV(TARG, len); |
8e07c86e |
1400 | if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV)) |
a0d0e21e |
1401 | force_on_match = 1; |
9212bbba |
1402 | TAINT_NOT; |
a0d0e21e |
1403 | |
1404 | force_it: |
1405 | if (!pm || !s) |
1406 | DIE("panic: do_subst"); |
1407 | |
1408 | strend = s + len; |
1409 | maxiters = (strend - s) + 10; |
1410 | |
1411 | if (!rx->prelen && curpm) { |
1412 | pm = curpm; |
1413 | rx = pm->op_pmregexp; |
1414 | } |
5f05dabc |
1415 | safebase = (!rx->nparens && !sawampersand); |
a0d0e21e |
1416 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1417 | SAVEINT(multiline); |
1418 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1419 | } |
1420 | orig = m = s; |
1421 | if (pm->op_pmshort) { |
1422 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1423 | if (SvSCREAM(TARG)) { |
1424 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1425 | goto nope; |
1426 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1427 | goto nope; |
1428 | } |
1429 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1430 | pm->op_pmshort))) |
1431 | goto nope; |
1432 | if (s && rx->regback >= 0) { |
1433 | ++BmUSEFUL(pm->op_pmshort); |
1434 | s -= rx->regback; |
1435 | if (s < m) |
1436 | s = m; |
1437 | } |
1438 | else |
1439 | s = m; |
1440 | } |
1441 | else if (!multiline) { |
bbce6d69 |
1442 | if (*SvPVX(pm->op_pmshort) != *s |
1443 | || (pm->op_pmslen > 1 |
36477c24 |
1444 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
1445 | goto nope; |
a0d0e21e |
1446 | } |
1447 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1448 | SvREFCNT_dec(pm->op_pmshort); |
1449 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1450 | } |
1451 | } |
71be2cbc |
1452 | |
1453 | /* only replace once? */ |
a0d0e21e |
1454 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1455 | |
1456 | /* known replacement string? */ |
1457 | c = (rpm->op_pmflags & PMf_CONST) ? SvPV(dstr, clen) : Nullch; |
1458 | |
1459 | /* can do inplace substitution? */ |
1460 | if (c && clen <= rx->minlen) { |
1461 | if (! pregexec(rx, s, strend, orig, 0, |
1462 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1463 | PUSHs(&sv_no); |
1464 | LEAVE_SCOPE(oldsave); |
1465 | RETURN; |
1466 | } |
1467 | if (force_on_match) { |
1468 | force_on_match = 0; |
1469 | s = SvPV_force(TARG, len); |
1470 | goto force_it; |
1471 | } |
1472 | if (rx->subbase) /* oops, no we can't */ |
1473 | goto long_way; |
1474 | d = s; |
1475 | curpm = pm; |
1476 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1477 | if (once) { |
1478 | rxtainted = rx->exec_tainted; |
1479 | m = rx->startp[0]; |
1480 | d = rx->endp[0]; |
1481 | s = orig; |
1482 | if (m - s > strend - d) { /* faster to shorten from end */ |
1483 | if (clen) { |
1484 | Copy(c, m, clen, char); |
1485 | m += clen; |
a0d0e21e |
1486 | } |
71be2cbc |
1487 | i = strend - d; |
1488 | if (i > 0) { |
1489 | Move(d, m, i, char); |
1490 | m += i; |
a0d0e21e |
1491 | } |
71be2cbc |
1492 | *m = '\0'; |
1493 | SvCUR_set(TARG, m - s); |
1494 | } |
1495 | /*SUPPRESS 560*/ |
1496 | else if (i = m - s) { /* faster from front */ |
1497 | d -= clen; |
1498 | m = d; |
1499 | sv_chop(TARG, d-i); |
1500 | s += i; |
1501 | while (i--) |
1502 | *--d = *--s; |
1503 | if (clen) |
1504 | Copy(c, m, clen, char); |
1505 | } |
1506 | else if (clen) { |
1507 | d -= clen; |
1508 | sv_chop(TARG, d); |
1509 | Copy(c, d, clen, char); |
1510 | } |
1511 | else { |
1512 | sv_chop(TARG, d); |
1513 | } |
9212bbba |
1514 | TAINT_IF(rxtainted); |
71be2cbc |
1515 | PUSHs(&sv_yes); |
1516 | } |
1517 | else { |
1518 | rxtainted = 0; |
1519 | do { |
1520 | if (iters++ > maxiters) |
1521 | DIE("Substitution loop"); |
1522 | rxtainted |= rx->exec_tainted; |
1523 | m = rx->startp[0]; |
1524 | /*SUPPRESS 560*/ |
1525 | if (i = m - s) { |
1526 | if (s != d) |
1527 | Move(s, d, i, char); |
1528 | d += i; |
a0d0e21e |
1529 | } |
71be2cbc |
1530 | if (clen) { |
1531 | Copy(c, d, clen, char); |
1532 | d += clen; |
1533 | } |
1534 | s = rx->endp[0]; |
1535 | } while (pregexec(rx, s, strend, orig, s == m, |
1536 | Nullsv, TRUE)); /* don't match same null twice */ |
1537 | if (s != d) { |
1538 | i = strend - s; |
1539 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1540 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1541 | } |
9212bbba |
1542 | TAINT_IF(rxtainted); |
71be2cbc |
1543 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1544 | } |
71be2cbc |
1545 | (void)SvPOK_only(TARG); |
1546 | SvSETMAGIC(TARG); |
9212bbba |
1547 | SvTAINT(TARG); |
71be2cbc |
1548 | LEAVE_SCOPE(oldsave); |
1549 | RETURN; |
a0d0e21e |
1550 | } |
71be2cbc |
1551 | |
e50aee73 |
1552 | if (pregexec(rx, s, strend, orig, 0, |
5f05dabc |
1553 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
a0d0e21e |
1554 | long_way: |
1555 | if (force_on_match) { |
1556 | force_on_match = 0; |
1557 | s = SvPV_force(TARG, len); |
1558 | goto force_it; |
1559 | } |
71be2cbc |
1560 | rxtainted = rx->exec_tainted; |
a0d0e21e |
1561 | dstr = NEWSV(25, sv_len(TARG)); |
1562 | sv_setpvn(dstr, m, s-m); |
1563 | curpm = pm; |
1564 | if (!c) { |
1565 | register CONTEXT *cx; |
1566 | PUSHSUBST(cx); |
1567 | RETURNOP(cPMOP->op_pmreplroot); |
1568 | } |
1569 | do { |
1570 | if (iters++ > maxiters) |
1571 | DIE("Substitution loop"); |
71be2cbc |
1572 | rxtainted |= rx->exec_tainted; |
a0d0e21e |
1573 | if (rx->subbase && rx->subbase != orig) { |
1574 | m = s; |
1575 | s = orig; |
1576 | orig = rx->subbase; |
1577 | s = orig + (m - s); |
1578 | strend = s + (strend - m); |
1579 | } |
1580 | m = rx->startp[0]; |
1581 | sv_catpvn(dstr, s, m-s); |
1582 | s = rx->endp[0]; |
1583 | if (clen) |
1584 | sv_catpvn(dstr, c, clen); |
1585 | if (once) |
1586 | break; |
5f05dabc |
1587 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase)); |
a0d0e21e |
1588 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1589 | |
9212bbba |
1590 | TAINT_IF(rxtainted); |
1591 | |
4633a7c4 |
1592 | (void)SvOOK_off(TARG); |
cb0b1708 |
1593 | Safefree(SvPVX(TARG)); |
748a9306 |
1594 | SvPVX(TARG) = SvPVX(dstr); |
1595 | SvCUR_set(TARG, SvCUR(dstr)); |
1596 | SvLEN_set(TARG, SvLEN(dstr)); |
1597 | SvPVX(dstr) = 0; |
1598 | sv_free(dstr); |
1599 | |
a0d0e21e |
1600 | (void)SvPOK_only(TARG); |
1601 | SvSETMAGIC(TARG); |
9212bbba |
1602 | SvTAINT(TARG); |
a0d0e21e |
1603 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1604 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1605 | RETURN; |
1606 | } |
9212bbba |
1607 | |
a0d0e21e |
1608 | PUSHs(&sv_no); |
4633a7c4 |
1609 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1610 | RETURN; |
1611 | |
1612 | nope: |
1613 | ++BmUSEFUL(pm->op_pmshort); |
1614 | PUSHs(&sv_no); |
4633a7c4 |
1615 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1616 | RETURN; |
1617 | } |
1618 | |
1619 | PP(pp_grepwhile) |
1620 | { |
1621 | dSP; |
1622 | |
1623 | if (SvTRUEx(POPs)) |
1624 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1625 | ++*markstack_ptr; |
1626 | LEAVE; /* exit inner scope */ |
1627 | |
1628 | /* All done yet? */ |
1629 | if (stack_base + *markstack_ptr > sp) { |
1630 | I32 items; |
1631 | |
1632 | LEAVE; /* exit outer scope */ |
1633 | (void)POPMARK; /* pop src */ |
1634 | items = --*markstack_ptr - markstack_ptr[-1]; |
1635 | (void)POPMARK; /* pop dst */ |
1636 | SP = stack_base + POPMARK; /* pop original mark */ |
1637 | if (GIMME != G_ARRAY) { |
1638 | dTARGET; |
1639 | XPUSHi(items); |
1640 | RETURN; |
1641 | } |
1642 | SP += items; |
1643 | RETURN; |
1644 | } |
1645 | else { |
1646 | SV *src; |
1647 | |
1648 | ENTER; /* enter inner scope */ |
1649 | SAVESPTR(curpm); |
1650 | |
1651 | src = stack_base[*markstack_ptr]; |
1652 | SvTEMP_off(src); |
1653 | GvSV(defgv) = src; |
1654 | |
1655 | RETURNOP(cLOGOP->op_other); |
1656 | } |
1657 | } |
1658 | |
1659 | PP(pp_leavesub) |
1660 | { |
1661 | dSP; |
1662 | SV **mark; |
1663 | SV **newsp; |
1664 | PMOP *newpm; |
1665 | I32 gimme; |
1666 | register CONTEXT *cx; |
f86702cc |
1667 | struct block_sub cxsub; |
a0d0e21e |
1668 | |
1669 | POPBLOCK(cx,newpm); |
f86702cc |
1670 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1671 | |
a0d0e21e |
1672 | if (gimme == G_SCALAR) { |
1673 | MARK = newsp + 1; |
1674 | if (MARK <= SP) |
f86702cc |
1675 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e |
1676 | else { |
f86702cc |
1677 | MEXTEND(MARK, 0); |
a0d0e21e |
1678 | *MARK = &sv_undef; |
1679 | } |
1680 | SP = MARK; |
1681 | } |
1682 | else { |
f86702cc |
1683 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
1684 | if (!SvTEMP(*MARK)) |
1685 | *MARK = sv_mortalcopy(*MARK); |
1686 | } |
a0d0e21e |
1687 | } |
f86702cc |
1688 | PUTBACK; |
1689 | |
1690 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
1691 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1692 | |
1693 | LEAVE; |
a0d0e21e |
1694 | return pop_return(); |
1695 | } |
1696 | |
1697 | PP(pp_entersub) |
1698 | { |
1699 | dSP; dPOPss; |
1700 | GV *gv; |
1701 | HV *stash; |
1702 | register CV *cv; |
1703 | register CONTEXT *cx; |
5d94fbed |
1704 | I32 gimme; |
07055b4c |
1705 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1706 | |
1707 | if (!sv) |
1708 | DIE("Not a CODE reference"); |
1709 | switch (SvTYPE(sv)) { |
1710 | default: |
1711 | if (!SvROK(sv)) { |
748a9306 |
1712 | char *sym; |
1713 | |
a0d0e21e |
1714 | if (sv == &sv_yes) /* unfound import, ignore */ |
1715 | RETURN; |
15ff848f |
1716 | if (SvGMAGICAL(sv)) { |
1717 | mg_get(sv); |
1718 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1719 | } |
1720 | else |
1721 | sym = SvPV(sv, na); |
1722 | if (!sym) |
a0d0e21e |
1723 | DIE(no_usym, "a subroutine"); |
1724 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1725 | DIE(no_symref, sym, "a subroutine"); |
1726 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1727 | break; |
1728 | } |
1729 | cv = (CV*)SvRV(sv); |
28757baa |
1730 | if (SvTYPE(cv) == SVt_PVCV) |
a0d0e21e |
1731 | break; |
1732 | /* FALL THROUGH */ |
1733 | case SVt_PVHV: |
1734 | case SVt_PVAV: |
1735 | DIE("Not a CODE reference"); |
1736 | case SVt_PVCV: |
1737 | cv = (CV*)sv; |
1738 | break; |
1739 | case SVt_PVGV: |
8ebc5c01 |
1740 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
1741 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1742 | break; |
1743 | } |
1744 | |
8ebc5c01 |
1745 | ENTER; |
1746 | SAVETMPS; |
1747 | |
a0d0e21e |
1748 | retry: |
1749 | if (!cv) |
1750 | DIE("Not a CODE reference"); |
1751 | |
1752 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
1753 | GV* autogv; |
1754 | SV* subname; |
1755 | |
1756 | /* anonymous or undef'd function leaves us no recourse */ |
1757 | if (CvANON(cv) || !(gv = CvGV(cv))) |
1758 | DIE("Undefined subroutine called"); |
1759 | /* autoloaded stub? */ |
1760 | if (cv != GvCV(gv)) { |
1761 | cv = GvCV(gv); |
1762 | goto retry; |
a0d0e21e |
1763 | } |
44a8e56a |
1764 | /* should call AUTOLOAD now? */ |
1765 | if ((autogv = gv_autoload(GvESTASH(gv), GvNAME(gv), GvNAMELEN(gv)))) { |
1766 | cv = GvCV(autogv); |
1767 | goto retry; |
1768 | } |
1769 | /* sorry */ |
1770 | subname = sv_newmortal(); |
1771 | gv_efullname3(subname, gv, Nullch); |
1772 | DIE("Undefined subroutine &%s called", SvPVX(subname)); |
a0d0e21e |
1773 | } |
1774 | |
4633a7c4 |
1775 | gimme = GIMME; |
28757baa |
1776 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) { |
71be2cbc |
1777 | SV *oldsv = sv; |
a0d0e21e |
1778 | sv = GvSV(DBsub); |
1779 | save_item(sv); |
67955e0c |
1780 | gv = CvGV(cv); |
71be2cbc |
1781 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1782 | || strEQ(GvNAME(gv), "END") |
1783 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1784 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) |
1785 | && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */ |
1786 | /* GV is potentially non-unique, or contain different CV. */ |
748a9306 |
1787 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 |
1788 | } |
748a9306 |
1789 | else { |
4f732624 |
1790 | gv_efullname3(sv, gv, Nullch); |
748a9306 |
1791 | } |
a0d0e21e |
1792 | cv = GvCV(DBsub); |
67955e0c |
1793 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e |
1794 | if (!cv) |
1795 | DIE("No DBsub routine"); |
1796 | } |
1797 | |
1798 | if (CvXSUB(cv)) { |
1799 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1800 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1801 | dMARK; |
1802 | register I32 items = SP - MARK; |
67955e0c |
1803 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1804 | while (sp > mark) { |
1805 | sp[1] = sp[0]; |
1806 | sp--; |
1807 | } |
1808 | stack_sp = mark + 1; |
ecfc5424 |
1809 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1810 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1811 | MARK - stack_base + 1, |
1812 | items); |
a0d0e21e |
1813 | stack_sp = stack_base + items; |
1814 | } |
1815 | else { |
748a9306 |
1816 | I32 markix = TOPMARK; |
1817 | |
a0d0e21e |
1818 | PUTBACK; |
67955e0c |
1819 | |
1820 | if (!hasargs) { |
1821 | /* Need to copy @_ to stack. Alternative may be to |
1822 | * switch stack to @_, and copy return values |
1823 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
1824 | AV* av = GvAV(defgv); |
1825 | I32 items = AvFILL(av) + 1; |
1826 | |
1827 | if (items) { |
1828 | /* Mark is at the end of the stack. */ |
1829 | EXTEND(sp, items); |
1830 | Copy(AvARRAY(av), sp + 1, items, SV*); |
1831 | sp += items; |
1832 | PUTBACK ; |
1833 | } |
1834 | } |
1835 | if (curcopdb) { /* We assume that the first |
1836 | XSUB in &DB::sub is the |
1837 | called one. */ |
1838 | SAVESPTR(curcop); |
1839 | curcop = curcopdb; |
1840 | curcopdb = NULL; |
1841 | } |
1842 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
1843 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
1844 | |
1845 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
1846 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
1847 | if (markix > stack_sp - stack_base) |
1848 | *(stack_base + markix) = &sv_undef; |
1849 | else |
1850 | *(stack_base + markix) = *stack_sp; |
1851 | stack_sp = stack_base + markix; |
1852 | } |
a0d0e21e |
1853 | } |
1854 | LEAVE; |
1855 | return NORMAL; |
1856 | } |
1857 | else { |
1858 | dMARK; |
1859 | register I32 items = SP - MARK; |
a0d0e21e |
1860 | AV* padlist = CvPADLIST(cv); |
1861 | SV** svp = AvARRAY(padlist); |
1862 | push_return(op->op_next); |
1863 | PUSHBLOCK(cx, CXt_SUB, MARK); |
1864 | PUSHSUB(cx); |
1865 | CvDEPTH(cv)++; |
1866 | if (CvDEPTH(cv) < 2) |
1867 | (void)SvREFCNT_inc(cv); |
1868 | else { /* save temporaries on recursion? */ |
5f05dabc |
1869 | if (CvDEPTH(cv) == 100 && dowarn |
44a8e56a |
1870 | && !(perldb && cv == GvCV(DBsub))) |
1871 | sub_crush_depth(cv); |
a0d0e21e |
1872 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1873 | AV *av; |
1874 | AV *newpad = newAV(); |
4aa0a1f7 |
1875 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1876 | I32 ix = AvFILL((AV*)svp[1]); |
1877 | svp = AvARRAY(svp[0]); |
748a9306 |
1878 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1879 | if (svp[ix] != &sv_undef) { |
748a9306 |
1880 | char *name = SvPVX(svp[ix]); |
5f05dabc |
1881 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
1882 | || *name == '&') /* anonymous code? */ |
1883 | { |
1884 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
1885 | } |
1886 | else { /* our own lexical */ |
1887 | if (*name == '@') |
1888 | av_store(newpad, ix, sv = (SV*)newAV()); |
1889 | else if (*name == '%') |
1890 | av_store(newpad, ix, sv = (SV*)newHV()); |
1891 | else |
1892 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1893 | SvPADMY_on(sv); |
1894 | } |
a0d0e21e |
1895 | } |
1896 | else { |
748a9306 |
1897 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1898 | SvPADTMP_on(sv); |
1899 | } |
1900 | } |
1901 | av = newAV(); /* will be @_ */ |
1902 | av_extend(av, 0); |
1903 | av_store(newpad, 0, (SV*)av); |
1904 | AvFLAGS(av) = AVf_REIFY; |
1905 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1906 | AvFILL(padlist) = CvDEPTH(cv); |
1907 | svp = AvARRAY(padlist); |
1908 | } |
1909 | } |
1910 | SAVESPTR(curpad); |
1911 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1912 | if (hasargs) { |
1913 | AV* av = (AV*)curpad[0]; |
1914 | SV** ary; |
1915 | |
1916 | if (AvREAL(av)) { |
1917 | av_clear(av); |
1918 | AvREAL_off(av); |
1919 | } |
1920 | cx->blk_sub.savearray = GvAV(defgv); |
1921 | cx->blk_sub.argarray = av; |
0c8c7a05 |
1922 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
a0d0e21e |
1923 | ++MARK; |
1924 | |
1925 | if (items > AvMAX(av) + 1) { |
1926 | ary = AvALLOC(av); |
1927 | if (AvARRAY(av) != ary) { |
1928 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1929 | SvPVX(av) = (char*)ary; |
1930 | } |
1931 | if (items > AvMAX(av) + 1) { |
1932 | AvMAX(av) = items - 1; |
1933 | Renew(ary,items,SV*); |
1934 | AvALLOC(av) = ary; |
1935 | SvPVX(av) = (char*)ary; |
1936 | } |
1937 | } |
1938 | Copy(MARK,AvARRAY(av),items,SV*); |
1939 | AvFILL(av) = items - 1; |
1940 | |
1941 | while (items--) { |
1942 | if (*MARK) |
1943 | SvTEMP_off(*MARK); |
1944 | MARK++; |
1945 | } |
1946 | } |
1947 | RETURNOP(CvSTART(cv)); |
1948 | } |
1949 | } |
1950 | |
44a8e56a |
1951 | void |
1952 | sub_crush_depth(cv) |
1953 | CV* cv; |
1954 | { |
1955 | if (CvANON(cv)) |
1956 | warn("Deep recursion on anonymous subroutine"); |
1957 | else { |
1958 | SV* tmpstr = sv_newmortal(); |
1959 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
1960 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
1961 | } |
1962 | } |
1963 | |
a0d0e21e |
1964 | PP(pp_aelem) |
1965 | { |
1966 | dSP; |
1967 | SV** svp; |
748a9306 |
1968 | I32 elem = POPi; |
a0d0e21e |
1969 | AV *av = (AV*)POPs; |
1970 | I32 lval = op->op_flags & OPf_MOD; |
1971 | |
748a9306 |
1972 | if (elem > 0) |
1973 | elem -= curcop->cop_arybase; |
a0d0e21e |
1974 | if (SvTYPE(av) != SVt_PVAV) |
1975 | RETPUSHUNDEF; |
1976 | svp = av_fetch(av, elem, lval); |
1977 | if (lval) { |
1978 | if (!svp || *svp == &sv_undef) |
1979 | DIE(no_aelem, elem); |
1980 | if (op->op_private & OPpLVAL_INTRO) |
1981 | save_svref(svp); |
5f05dabc |
1982 | else if (op->op_private & OPpDEREF) |
02a9e968 |
1983 | provide_ref(op, *svp); |
a0d0e21e |
1984 | } |
1985 | PUSHs(svp ? *svp : &sv_undef); |
1986 | RETURN; |
1987 | } |
1988 | |
02a9e968 |
1989 | void |
1990 | provide_ref(op, sv) |
1991 | OP* op; |
1992 | SV* sv; |
1993 | { |
1994 | if (SvGMAGICAL(sv)) |
1995 | mg_get(sv); |
1996 | if (!SvOK(sv)) { |
1997 | if (SvREADONLY(sv)) |
1998 | croak(no_modify); |
5f05dabc |
1999 | if (SvTYPE(sv) < SVt_RV) |
2000 | sv_upgrade(sv, SVt_RV); |
2001 | else if (SvTYPE(sv) >= SVt_PV) { |
2002 | (void)SvOOK_off(sv); |
2003 | Safefree(SvPVX(sv)); |
2004 | SvLEN(sv) = SvCUR(sv) = 0; |
2005 | } |
2006 | switch (op->op_private & OPpDEREF) |
2007 | { |
2008 | case OPpDEREF_SV: |
2009 | SvRV(sv) = newSV(0); |
2010 | break; |
2011 | case OPpDEREF_AV: |
2012 | SvRV(sv) = (SV*)newAV(); |
2013 | break; |
2014 | case OPpDEREF_HV: |
2015 | SvRV(sv) = (SV*)newHV(); |
2016 | break; |
2017 | } |
02a9e968 |
2018 | SvROK_on(sv); |
2019 | SvSETMAGIC(sv); |
2020 | } |
2021 | } |
2022 | |
a0d0e21e |
2023 | PP(pp_method) |
2024 | { |
2025 | dSP; |
2026 | SV* sv; |
2027 | SV* ob; |
2028 | GV* gv; |
2029 | SV* nm; |
2030 | |
2031 | nm = TOPs; |
2032 | sv = *(stack_base + TOPMARK + 1); |
2033 | |
2034 | gv = 0; |
16d20bd9 |
2035 | if (SvGMAGICAL(sv)) |
2036 | mg_get(sv); |
a0d0e21e |
2037 | if (SvROK(sv)) |
16d20bd9 |
2038 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2039 | else { |
2040 | GV* iogv; |
2041 | char* packname = 0; |
67955e0c |
2042 | STRLEN packlen; |
a0d0e21e |
2043 | |
2044 | if (!SvOK(sv) || |
67955e0c |
2045 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2046 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2047 | !(ob=(SV*)GvIO(iogv))) |
2048 | { |
2049 | char *name = SvPV(nm, na); |
2050 | HV *stash; |
2051 | if (!packname || !isALPHA(*packname)) |
2052 | DIE("Can't call method \"%s\" without a package or object reference", name); |
67955e0c |
2053 | if (!(stash = gv_stashpvn(packname, packlen, FALSE))) { |
2054 | if (gv_stashpvn("UNIVERSAL", 9, FALSE)) |
2055 | stash = gv_stashpvn(packname, packlen, TRUE); |
a0d0e21e |
2056 | else |
2057 | DIE("Can't call method \"%s\" in empty package \"%s\"", |
2058 | name, packname); |
2059 | } |
2060 | gv = gv_fetchmethod(stash,name); |
2061 | if (!gv) |
2062 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2063 | name, packname); |
8ebc5c01 |
2064 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2065 | RETURN; |
2066 | } |
67955e0c |
2067 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2068 | } |
2069 | |
2070 | if (!ob || !SvOBJECT(ob)) { |
2071 | char *name = SvPV(nm, na); |
2072 | DIE("Can't call method \"%s\" on unblessed reference", name); |
2073 | } |
2074 | |
2075 | if (!gv) { /* nothing cached */ |
2076 | char *name = SvPV(nm, na); |
2077 | gv = gv_fetchmethod(SvSTASH(ob),name); |
2078 | if (!gv) |
2079 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2080 | name, HvNAME(SvSTASH(ob))); |
2081 | } |
2082 | |
8ebc5c01 |
2083 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2084 | RETURN; |
2085 | } |
2086 | |