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': |
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; |
55497cff |
245 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
246 | SvIVX(TOPs) != IV_MAX) |
247 | { |
248 | ++SvIVX(TOPs); |
249 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
250 | } |
251 | else |
252 | sv_inc(TOPs); |
a0d0e21e |
253 | SvSETMAGIC(TOPs); |
254 | return NORMAL; |
255 | } |
256 | |
257 | PP(pp_or) |
258 | { |
259 | dSP; |
260 | if (SvTRUE(TOPs)) |
261 | RETURN; |
262 | else { |
263 | --SP; |
264 | RETURNOP(cLOGOP->op_other); |
265 | } |
266 | } |
267 | |
268 | PP(pp_add) |
269 | { |
270 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
271 | { |
7a4c00b4 |
272 | dPOPTOPnnrl_ul; |
a0d0e21e |
273 | SETn( left + right ); |
274 | RETURN; |
275 | } |
276 | } |
277 | |
278 | PP(pp_aelemfast) |
279 | { |
280 | dSP; |
281 | AV *av = GvAV((GV*)cSVOP->op_sv); |
282 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
283 | PUSHs(svp ? *svp : &sv_undef); |
284 | RETURN; |
285 | } |
286 | |
287 | PP(pp_join) |
288 | { |
289 | dSP; dMARK; dTARGET; |
290 | MARK++; |
291 | do_join(TARG, *MARK, MARK, SP); |
292 | SP = MARK; |
293 | SETs(TARG); |
294 | RETURN; |
295 | } |
296 | |
297 | PP(pp_pushre) |
298 | { |
299 | dSP; |
300 | XPUSHs((SV*)op); |
301 | RETURN; |
302 | } |
303 | |
304 | /* Oversized hot code. */ |
305 | |
306 | PP(pp_print) |
307 | { |
308 | dSP; dMARK; dORIGMARK; |
309 | GV *gv; |
310 | IO *io; |
760ac839 |
311 | register PerlIO *fp; |
236988e4 |
312 | MAGIC *mg; |
a0d0e21e |
313 | |
314 | if (op->op_flags & OPf_STACKED) |
315 | gv = (GV*)*++MARK; |
316 | else |
317 | gv = defoutgv; |
236988e4 |
318 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
319 | SV *sv; |
320 | |
321 | PUSHMARK(MARK-1); |
322 | *MARK = mg->mg_obj; |
323 | ENTER; |
324 | perl_call_method("PRINT", G_SCALAR); |
325 | LEAVE; |
326 | SPAGAIN; |
327 | sv = POPs; |
328 | SP = ORIGMARK; |
329 | PUSHs(sv); |
330 | RETURN; |
331 | } |
a0d0e21e |
332 | if (!(io = GvIO(gv))) { |
748a9306 |
333 | if (dowarn) { |
334 | SV* sv = sv_newmortal(); |
4f732624 |
335 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
336 | warn("Filehandle %s never opened", SvPV(sv,na)); |
337 | } |
338 | |
339 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
340 | goto just_say_no; |
341 | } |
342 | else if (!(fp = IoOFP(io))) { |
343 | if (dowarn) { |
748a9306 |
344 | SV* sv = sv_newmortal(); |
4f732624 |
345 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
346 | if (IoIFP(io)) |
748a9306 |
347 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
348 | else |
748a9306 |
349 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
350 | } |
748a9306 |
351 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
352 | goto just_say_no; |
353 | } |
354 | else { |
355 | MARK++; |
356 | if (ofslen) { |
357 | while (MARK <= SP) { |
358 | if (!do_print(*MARK, fp)) |
359 | break; |
360 | MARK++; |
361 | if (MARK <= SP) { |
760ac839 |
362 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
363 | MARK--; |
364 | break; |
365 | } |
366 | } |
367 | } |
368 | } |
369 | else { |
370 | while (MARK <= SP) { |
371 | if (!do_print(*MARK, fp)) |
372 | break; |
373 | MARK++; |
374 | } |
375 | } |
376 | if (MARK <= SP) |
377 | goto just_say_no; |
378 | else { |
379 | if (orslen) |
760ac839 |
380 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
381 | goto just_say_no; |
382 | |
383 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
384 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
385 | goto just_say_no; |
386 | } |
387 | } |
388 | SP = ORIGMARK; |
389 | PUSHs(&sv_yes); |
390 | RETURN; |
391 | |
392 | just_say_no: |
393 | SP = ORIGMARK; |
394 | PUSHs(&sv_undef); |
395 | RETURN; |
396 | } |
397 | |
398 | PP(pp_rv2av) |
399 | { |
400 | dSP; dPOPss; |
401 | |
402 | AV *av; |
403 | |
404 | if (SvROK(sv)) { |
405 | wasref: |
406 | av = (AV*)SvRV(sv); |
407 | if (SvTYPE(av) != SVt_PVAV) |
408 | DIE("Not an ARRAY reference"); |
409 | if (op->op_private & OPpLVAL_INTRO) |
410 | av = (AV*)save_svref((SV**)sv); |
411 | if (op->op_flags & OPf_REF) { |
412 | PUSHs((SV*)av); |
413 | RETURN; |
414 | } |
415 | } |
416 | else { |
417 | if (SvTYPE(sv) == SVt_PVAV) { |
418 | av = (AV*)sv; |
419 | if (op->op_flags & OPf_REF) { |
420 | PUSHs((SV*)av); |
421 | RETURN; |
422 | } |
423 | } |
424 | else { |
67955e0c |
425 | GV *gv; |
426 | |
a0d0e21e |
427 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
428 | char *sym; |
429 | |
a0d0e21e |
430 | if (SvGMAGICAL(sv)) { |
431 | mg_get(sv); |
432 | if (SvROK(sv)) |
433 | goto wasref; |
434 | } |
435 | if (!SvOK(sv)) { |
436 | if (op->op_flags & OPf_REF || |
437 | op->op_private & HINT_STRICT_REFS) |
438 | DIE(no_usym, "an ARRAY"); |
4633a7c4 |
439 | if (GIMME == G_ARRAY) |
440 | RETURN; |
a0d0e21e |
441 | RETPUSHUNDEF; |
442 | } |
748a9306 |
443 | sym = SvPV(sv,na); |
a0d0e21e |
444 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
445 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
446 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
447 | } else { |
448 | gv = (GV*)sv; |
a0d0e21e |
449 | } |
67955e0c |
450 | av = GvAVn(gv); |
a0d0e21e |
451 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
452 | av = save_ary(gv); |
a0d0e21e |
453 | if (op->op_flags & OPf_REF) { |
454 | PUSHs((SV*)av); |
455 | RETURN; |
456 | } |
457 | } |
458 | } |
459 | |
460 | if (GIMME == G_ARRAY) { |
461 | I32 maxarg = AvFILL(av) + 1; |
462 | EXTEND(SP, maxarg); |
463 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
464 | SP += maxarg; |
465 | } |
466 | else { |
467 | dTARGET; |
468 | I32 maxarg = AvFILL(av) + 1; |
469 | PUSHi(maxarg); |
470 | } |
471 | RETURN; |
472 | } |
473 | |
474 | PP(pp_rv2hv) |
475 | { |
476 | |
477 | dSP; dTOPss; |
478 | |
479 | HV *hv; |
480 | |
481 | if (SvROK(sv)) { |
482 | wasref: |
483 | hv = (HV*)SvRV(sv); |
484 | if (SvTYPE(hv) != SVt_PVHV) |
485 | DIE("Not a HASH reference"); |
486 | if (op->op_private & OPpLVAL_INTRO) |
487 | hv = (HV*)save_svref((SV**)sv); |
488 | if (op->op_flags & OPf_REF) { |
489 | SETs((SV*)hv); |
490 | RETURN; |
491 | } |
492 | } |
493 | else { |
494 | if (SvTYPE(sv) == SVt_PVHV) { |
495 | hv = (HV*)sv; |
496 | if (op->op_flags & OPf_REF) { |
497 | SETs((SV*)hv); |
498 | RETURN; |
499 | } |
500 | } |
501 | else { |
67955e0c |
502 | GV *gv; |
503 | |
a0d0e21e |
504 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
505 | char *sym; |
506 | |
a0d0e21e |
507 | if (SvGMAGICAL(sv)) { |
508 | mg_get(sv); |
509 | if (SvROK(sv)) |
510 | goto wasref; |
511 | } |
512 | if (!SvOK(sv)) { |
513 | if (op->op_flags & OPf_REF || |
514 | op->op_private & HINT_STRICT_REFS) |
515 | DIE(no_usym, "a HASH"); |
4633a7c4 |
516 | if (GIMME == G_ARRAY) { |
517 | SP--; |
518 | RETURN; |
519 | } |
a0d0e21e |
520 | RETSETUNDEF; |
521 | } |
748a9306 |
522 | sym = SvPV(sv,na); |
a0d0e21e |
523 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
524 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
525 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
526 | } else { |
527 | gv = (GV*)sv; |
a0d0e21e |
528 | } |
67955e0c |
529 | hv = GvHVn(gv); |
a0d0e21e |
530 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
531 | hv = save_hash(gv); |
a0d0e21e |
532 | if (op->op_flags & OPf_REF) { |
533 | SETs((SV*)hv); |
534 | RETURN; |
535 | } |
536 | } |
537 | } |
538 | |
539 | if (GIMME == G_ARRAY) { /* array wanted */ |
540 | *stack_sp = (SV*)hv; |
541 | return do_kv(ARGS); |
542 | } |
543 | else { |
544 | dTARGET; |
545 | if (HvFILL(hv)) { |
546 | sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1); |
547 | sv_setpv(TARG, buf); |
548 | } |
549 | else |
550 | sv_setiv(TARG, 0); |
551 | SETTARG; |
552 | RETURN; |
553 | } |
554 | } |
555 | |
556 | PP(pp_aassign) |
557 | { |
558 | dSP; |
559 | SV **lastlelem = stack_sp; |
560 | SV **lastrelem = stack_base + POPMARK; |
561 | SV **firstrelem = stack_base + POPMARK + 1; |
562 | SV **firstlelem = lastrelem + 1; |
563 | |
564 | register SV **relem; |
565 | register SV **lelem; |
566 | |
567 | register SV *sv; |
568 | register AV *ary; |
569 | |
570 | HV *hash; |
571 | I32 i; |
572 | int magic; |
573 | |
574 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
575 | |
576 | /* If there's a common identifier on both sides we have to take |
577 | * special care that assigning the identifier on the left doesn't |
578 | * clobber a value on the right that's used later in the list. |
579 | */ |
580 | if (op->op_private & OPpASSIGN_COMMON) { |
581 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
582 | /*SUPPRESS 560*/ |
583 | if (sv = *relem) |
584 | *relem = sv_mortalcopy(sv); |
585 | } |
586 | } |
587 | |
588 | relem = firstrelem; |
589 | lelem = firstlelem; |
590 | ary = Null(AV*); |
591 | hash = Null(HV*); |
592 | while (lelem <= lastlelem) { |
bbce6d69 |
593 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
594 | sv = *lelem++; |
595 | switch (SvTYPE(sv)) { |
596 | case SVt_PVAV: |
597 | ary = (AV*)sv; |
748a9306 |
598 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
599 | |
600 | av_clear(ary); |
601 | i = 0; |
602 | while (relem <= lastrelem) { /* gobble up all the rest */ |
603 | sv = NEWSV(28,0); |
604 | assert(*relem); |
605 | sv_setsv(sv,*relem); |
606 | *(relem++) = sv; |
607 | (void)av_store(ary,i++,sv); |
608 | if (magic) |
609 | mg_set(sv); |
bbce6d69 |
610 | TAINT_NOT; |
a0d0e21e |
611 | } |
612 | break; |
613 | case SVt_PVHV: { |
a0d0e21e |
614 | SV *tmpstr; |
615 | |
616 | hash = (HV*)sv; |
748a9306 |
617 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
618 | hv_clear(hash); |
619 | |
620 | while (relem < lastrelem) { /* gobble up all the rest */ |
621 | STRLEN len; |
4633a7c4 |
622 | if (*relem) |
a0d0e21e |
623 | sv = *(relem++); |
4633a7c4 |
624 | else |
a0d0e21e |
625 | sv = &sv_no, relem++; |
a0d0e21e |
626 | tmpstr = NEWSV(29,0); |
627 | if (*relem) |
628 | sv_setsv(tmpstr,*relem); /* value */ |
629 | *(relem++) = tmpstr; |
760ac839 |
630 | (void)hv_store_ent(hash,sv,tmpstr,0); |
a0d0e21e |
631 | if (magic) |
632 | mg_set(tmpstr); |
bbce6d69 |
633 | TAINT_NOT; |
8e07c86e |
634 | } |
760ac839 |
635 | if (relem == lastrelem) |
636 | warn("Odd number of elements in hash list"); |
a0d0e21e |
637 | } |
638 | break; |
639 | default: |
640 | if (SvTHINKFIRST(sv)) { |
641 | if (SvREADONLY(sv) && curcop != &compiling) { |
642 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
643 | DIE(no_modify); |
644 | if (relem <= lastrelem) |
645 | relem++; |
646 | break; |
647 | } |
648 | if (SvROK(sv)) |
649 | sv_unref(sv); |
650 | } |
651 | if (relem <= lastrelem) { |
652 | sv_setsv(sv, *relem); |
653 | *(relem++) = sv; |
654 | } |
655 | else |
656 | sv_setsv(sv, &sv_undef); |
657 | SvSETMAGIC(sv); |
658 | break; |
659 | } |
660 | } |
661 | if (delaymagic & ~DM_DELAY) { |
662 | if (delaymagic & DM_UID) { |
663 | #ifdef HAS_SETRESUID |
664 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
665 | #else |
666 | # ifdef HAS_SETREUID |
a0d0e21e |
667 | (void)setreuid(uid,euid); |
56febc5e |
668 | # else |
669 | # ifdef HAS_SETRUID |
a0d0e21e |
670 | if ((delaymagic & DM_UID) == DM_RUID) { |
671 | (void)setruid(uid); |
748a9306 |
672 | delaymagic &= ~DM_RUID; |
a0d0e21e |
673 | } |
56febc5e |
674 | # endif /* HAS_SETRUID */ |
675 | # ifdef HAS_SETEUID |
a0d0e21e |
676 | if ((delaymagic & DM_UID) == DM_EUID) { |
677 | (void)seteuid(uid); |
748a9306 |
678 | delaymagic &= ~DM_EUID; |
a0d0e21e |
679 | } |
56febc5e |
680 | # endif /* HAS_SETEUID */ |
a0d0e21e |
681 | if (delaymagic & DM_UID) { |
682 | if (uid != euid) |
683 | DIE("No setreuid available"); |
684 | (void)setuid(uid); |
685 | } |
56febc5e |
686 | # endif /* HAS_SETREUID */ |
687 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
688 | uid = (int)getuid(); |
689 | euid = (int)geteuid(); |
690 | } |
691 | if (delaymagic & DM_GID) { |
692 | #ifdef HAS_SETRESGID |
693 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
694 | #else |
695 | # ifdef HAS_SETREGID |
a0d0e21e |
696 | (void)setregid(gid,egid); |
56febc5e |
697 | # else |
698 | # ifdef HAS_SETRGID |
a0d0e21e |
699 | if ((delaymagic & DM_GID) == DM_RGID) { |
700 | (void)setrgid(gid); |
748a9306 |
701 | delaymagic &= ~DM_RGID; |
a0d0e21e |
702 | } |
56febc5e |
703 | # endif /* HAS_SETRGID */ |
704 | # ifdef HAS_SETEGID |
a0d0e21e |
705 | if ((delaymagic & DM_GID) == DM_EGID) { |
706 | (void)setegid(gid); |
748a9306 |
707 | delaymagic &= ~DM_EGID; |
a0d0e21e |
708 | } |
56febc5e |
709 | # endif /* HAS_SETEGID */ |
a0d0e21e |
710 | if (delaymagic & DM_GID) { |
711 | if (gid != egid) |
712 | DIE("No setregid available"); |
713 | (void)setgid(gid); |
714 | } |
56febc5e |
715 | # endif /* HAS_SETREGID */ |
716 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
717 | gid = (int)getgid(); |
718 | egid = (int)getegid(); |
719 | } |
4633a7c4 |
720 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
721 | } |
722 | delaymagic = 0; |
723 | if (GIMME == G_ARRAY) { |
724 | if (ary || hash) |
725 | SP = lastrelem; |
726 | else |
727 | SP = firstrelem + (lastlelem - firstlelem); |
5f05dabc |
728 | while (relem <= SP) |
729 | *relem++ = &sv_undef; |
a0d0e21e |
730 | RETURN; |
731 | } |
732 | else { |
4633a7c4 |
733 | dTARGET; |
a0d0e21e |
734 | SP = firstrelem; |
a0d0e21e |
735 | |
4633a7c4 |
736 | SETi(lastrelem - firstrelem + 1); |
737 | RETURN; |
a0d0e21e |
738 | } |
739 | } |
740 | |
741 | PP(pp_match) |
742 | { |
743 | dSP; dTARG; |
744 | register PMOP *pm = cPMOP; |
745 | register char *t; |
746 | register char *s; |
747 | char *strend; |
748 | I32 global; |
749 | I32 safebase; |
750 | char *truebase; |
751 | register REGEXP *rx = pm->op_pmregexp; |
752 | I32 gimme = GIMME; |
753 | STRLEN len; |
748a9306 |
754 | I32 minmatch = 0; |
4633a7c4 |
755 | I32 oldsave = savestack_ix; |
a0d0e21e |
756 | |
757 | if (op->op_flags & OPf_STACKED) |
758 | TARG = POPs; |
759 | else { |
760 | TARG = GvSV(defgv); |
761 | EXTEND(SP,1); |
762 | } |
763 | s = SvPV(TARG, len); |
764 | strend = s + len; |
765 | if (!s) |
766 | DIE("panic: do_match"); |
767 | |
768 | if (pm->op_pmflags & PMf_USED) { |
769 | if (gimme == G_ARRAY) |
770 | RETURN; |
771 | RETPUSHNO; |
772 | } |
773 | |
774 | if (!rx->prelen && curpm) { |
775 | pm = curpm; |
776 | rx = pm->op_pmregexp; |
777 | } |
778 | truebase = t = s; |
779 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
780 | rx->startp[0] = 0; |
781 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
782 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
783 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
784 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
785 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
786 | } |
a0d0e21e |
787 | } |
788 | } |
748a9306 |
789 | if (!rx->nparens && !global) |
790 | gimme = G_SCALAR; /* accidental array context? */ |
5f05dabc |
791 | safebase = (((gimme == G_ARRAY) || global) && !sawampersand); |
a0d0e21e |
792 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
793 | SAVEINT(multiline); |
794 | multiline = pm->op_pmflags & PMf_MULTILINE; |
795 | } |
796 | |
797 | play_it_again: |
798 | if (global && rx->startp[0]) { |
799 | t = s = rx->endp[0]; |
5f05dabc |
800 | if (s >= strend) |
a0d0e21e |
801 | goto nope; |
748a9306 |
802 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
803 | } |
804 | if (pm->op_pmshort) { |
805 | if (pm->op_pmflags & PMf_SCANFIRST) { |
806 | if (SvSCREAM(TARG)) { |
807 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
808 | goto nope; |
809 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
810 | goto nope; |
811 | else if (pm->op_pmflags & PMf_ALL) |
812 | goto yup; |
813 | } |
814 | else if (!(s = fbm_instr((unsigned char*)s, |
815 | (unsigned char*)strend, pm->op_pmshort))) |
816 | goto nope; |
817 | else if (pm->op_pmflags & PMf_ALL) |
818 | goto yup; |
819 | if (s && rx->regback >= 0) { |
820 | ++BmUSEFUL(pm->op_pmshort); |
821 | s -= rx->regback; |
822 | if (s < t) |
823 | s = t; |
824 | } |
825 | else |
826 | s = t; |
827 | } |
828 | else if (!multiline) { |
bbce6d69 |
829 | if (*SvPVX(pm->op_pmshort) != *s |
830 | || (pm->op_pmslen > 1 |
36477c24 |
831 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
832 | goto nope; |
a0d0e21e |
833 | } |
834 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
835 | SvREFCNT_dec(pm->op_pmshort); |
836 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
837 | } |
838 | } |
e50aee73 |
839 | if (pregexec(rx, s, strend, truebase, minmatch, |
bbce6d69 |
840 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) |
841 | { |
a0d0e21e |
842 | curpm = pm; |
843 | if (pm->op_pmflags & PMf_ONCE) |
844 | pm->op_pmflags |= PMf_USED; |
845 | goto gotcha; |
846 | } |
847 | else |
848 | goto ret_no; |
849 | /*NOTREACHED*/ |
850 | |
851 | gotcha: |
852 | if (gimme == G_ARRAY) { |
853 | I32 iters, i, len; |
854 | |
bbce6d69 |
855 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
856 | iters = rx->nparens; |
857 | if (global && !iters) |
858 | i = 1; |
859 | else |
860 | i = 0; |
861 | EXTEND(SP, iters + i); |
bbce6d69 |
862 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
863 | for (i = !i; i <= iters; i++) { |
864 | PUSHs(sv_newmortal()); |
865 | /*SUPPRESS 560*/ |
866 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
867 | len = rx->endp[i] - s; |
868 | sv_setpvn(*SP, s, len); |
869 | } |
870 | } |
871 | if (global) { |
872 | truebase = rx->subbeg; |
5f05dabc |
873 | strend = rx->subend; |
a0d0e21e |
874 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
875 | ++rx->endp[0]; |
876 | goto play_it_again; |
877 | } |
4633a7c4 |
878 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
879 | RETURN; |
880 | } |
881 | else { |
882 | if (global) { |
883 | MAGIC* mg = 0; |
884 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
885 | mg = mg_find(TARG, 'g'); |
886 | if (!mg) { |
887 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
888 | mg = mg_find(TARG, 'g'); |
889 | } |
748a9306 |
890 | if (rx->startp[0]) { |
5f05dabc |
891 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 |
892 | if (rx->startp[0] == rx->endp[0]) |
893 | mg->mg_flags |= MGf_MINMATCH; |
894 | else |
895 | mg->mg_flags &= ~MGf_MINMATCH; |
896 | } |
a0d0e21e |
897 | } |
4633a7c4 |
898 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
899 | RETPUSHYES; |
900 | } |
901 | |
902 | yup: |
903 | ++BmUSEFUL(pm->op_pmshort); |
904 | curpm = pm; |
905 | if (pm->op_pmflags & PMf_ONCE) |
906 | pm->op_pmflags |= PMf_USED; |
5f05dabc |
907 | Safefree(rx->subbase); |
908 | rx->subbase = Nullch; |
a0d0e21e |
909 | if (global) { |
910 | rx->subbeg = truebase; |
911 | rx->subend = strend; |
912 | rx->startp[0] = s; |
913 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
914 | goto gotcha; |
915 | } |
916 | if (sawampersand) { |
917 | char *tmps; |
918 | |
a0d0e21e |
919 | tmps = rx->subbase = savepvn(t, strend-t); |
920 | rx->subbeg = tmps; |
921 | rx->subend = tmps + (strend-t); |
922 | tmps = rx->startp[0] = tmps + (s - t); |
923 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
924 | } |
4633a7c4 |
925 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
926 | RETPUSHYES; |
927 | |
928 | nope: |
929 | if (pm->op_pmshort) |
930 | ++BmUSEFUL(pm->op_pmshort); |
931 | |
932 | ret_no: |
4633a7c4 |
933 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
934 | if (gimme == G_ARRAY) |
935 | RETURN; |
936 | RETPUSHNO; |
937 | } |
938 | |
939 | OP * |
940 | do_readline() |
941 | { |
942 | dSP; dTARGETSTACKED; |
943 | register SV *sv; |
944 | STRLEN tmplen = 0; |
945 | STRLEN offset; |
760ac839 |
946 | PerlIO *fp; |
a0d0e21e |
947 | register IO *io = GvIO(last_in_gv); |
948 | register I32 type = op->op_type; |
e79b0511 |
949 | MAGIC *mg; |
a0d0e21e |
950 | |
e79b0511 |
951 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
952 | PUSHMARK(SP); |
953 | XPUSHs(mg->mg_obj); |
954 | PUTBACK; |
955 | ENTER; |
956 | perl_call_method("READLINE", GIMME); |
957 | LEAVE; |
958 | SPAGAIN; |
959 | if (GIMME == G_SCALAR) sv_setsv(TARG, TOPs); |
960 | RETURN; |
961 | } |
a0d0e21e |
962 | fp = Nullfp; |
963 | if (io) { |
964 | fp = IoIFP(io); |
965 | if (!fp) { |
966 | if (IoFLAGS(io) & IOf_ARGV) { |
967 | if (IoFLAGS(io) & IOf_START) { |
968 | IoFLAGS(io) &= ~IOf_START; |
969 | IoLINES(io) = 0; |
970 | if (av_len(GvAVn(last_in_gv)) < 0) { |
971 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
972 | av_push(GvAVn(last_in_gv), tmpstr); |
973 | } |
974 | } |
975 | fp = nextargv(last_in_gv); |
976 | if (!fp) { /* Note: fp != IoIFP(io) */ |
977 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
978 | IoFLAGS(io) |= IOf_START; |
979 | } |
980 | } |
981 | else if (type == OP_GLOB) { |
982 | SV *tmpcmd = NEWSV(55, 0); |
983 | SV *tmpglob = POPs; |
984 | ENTER; |
985 | SAVEFREESV(tmpcmd); |
986 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
987 | /* since spawning off a process is a real performance hit */ |
988 | { |
989 | #include <descrip.h> |
990 | #include <lib$routines.h> |
991 | #include <nam.h> |
992 | #include <rmsdef.h> |
993 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
994 | char vmsspec[NAM$C_MAXRSS+1]; |
995 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
996 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
997 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
998 | PerlIO *tmpfp; |
a0d0e21e |
999 | STRLEN i; |
1000 | struct dsc$descriptor_s wilddsc |
1001 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1002 | struct dsc$descriptor_vs rsdsc |
1003 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1004 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1005 | |
1006 | /* We could find out if there's an explicit dev/dir or version |
1007 | by peeking into lib$find_file's internal context at |
1008 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1009 | but that's unsupported, so I don't want to do it now and |
1010 | have it bite someone in the future. */ |
1011 | strcat(tmpfnam,tmpnam(NULL)); |
1012 | cp = SvPV(tmpglob,i); |
1013 | for (; i; i--) { |
1014 | if (cp[i] == ';') hasver = 1; |
1015 | if (cp[i] == '.') { |
1016 | if (sts) hasver = 1; |
1017 | else sts = 1; |
1018 | } |
1019 | if (cp[i] == '/') { |
1020 | hasdir = isunix = 1; |
1021 | break; |
748a9306 |
1022 | } |
a0d0e21e |
1023 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1024 | hasdir = 1; |
1025 | break; |
1026 | } |
1027 | } |
760ac839 |
1028 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1029 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1030 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1031 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1032 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1033 | end = rstr + (unsigned long int) *rslt; |
1034 | if (!hasver) while (*end != ';') end--; |
1035 | *(end++) = '\n'; *end = '\0'; |
1036 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1037 | if (hasdir) { |
271c2963 |
1038 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob)); |
a0d0e21e |
1039 | begin = rstr; |
1040 | } |
1041 | else { |
1042 | begin = end; |
1043 | while (*(--begin) != ']' && *begin != '>') ; |
1044 | ++begin; |
1045 | } |
760ac839 |
1046 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1047 | } |
1048 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1049 | if (ok && sts != RMS$_NMF && |
1050 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1051 | if (!ok) { |
c07a80fd |
1052 | if (!(sts & 1)) { |
1053 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1054 | } |
760ac839 |
1055 | PerlIO_close(tmpfp); |
a0d0e21e |
1056 | fp = NULL; |
1057 | } |
1058 | else { |
760ac839 |
1059 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1060 | IoTYPE(io) = '<'; |
1061 | IoIFP(io) = fp = tmpfp; |
1062 | } |
1063 | } |
1064 | } |
1065 | #else /* !VMS */ |
1066 | #ifdef DOSISH |
67955e0c |
1067 | #ifdef OS2 |
1068 | sv_setpv(tmpcmd, "for a in "); |
1069 | sv_catsv(tmpcmd, tmpglob); |
1070 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1071 | #else |
a0d0e21e |
1072 | sv_setpv(tmpcmd, "perlglob "); |
1073 | sv_catsv(tmpcmd, tmpglob); |
1074 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1075 | #endif /* !OS2 */ |
1076 | #else /* !DOSISH */ |
1077 | #if defined(CSH) |
a0d0e21e |
1078 | sv_setpvn(tmpcmd, cshname, cshlen); |
1079 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1080 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1081 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1082 | #else |
1083 | sv_setpv(tmpcmd, "echo "); |
1084 | sv_catsv(tmpcmd, tmpglob); |
1085 | #if 'z' - 'a' == 25 |
1086 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1087 | #else |
1088 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1089 | #endif |
1090 | #endif /* !CSH */ |
67955e0c |
1091 | #endif /* !DOSISH */ |
c07a80fd |
1092 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1093 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1094 | fp = IoIFP(io); |
1095 | #endif /* !VMS */ |
1096 | LEAVE; |
1097 | } |
1098 | } |
1099 | else if (type == OP_GLOB) |
1100 | SP--; |
1101 | } |
1102 | if (!fp) { |
4633a7c4 |
1103 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1104 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
1105 | if (GIMME == G_SCALAR) { |
1106 | (void)SvOK_off(TARG); |
1107 | PUSHTARG; |
1108 | } |
1109 | RETURN; |
1110 | } |
1111 | if (GIMME == G_ARRAY) { |
1112 | sv = sv_2mortal(NEWSV(57, 80)); |
1113 | offset = 0; |
1114 | } |
1115 | else { |
1116 | sv = TARG; |
1117 | (void)SvUPGRADE(sv, SVt_PV); |
1118 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1119 | if (!tmplen) |
1120 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1121 | if (type == OP_RCATLINE) |
1122 | offset = SvCUR(sv); |
1123 | else |
1124 | offset = 0; |
1125 | } |
1126 | for (;;) { |
1127 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1128 | PerlIO_clearerr(fp); |
a0d0e21e |
1129 | if (IoFLAGS(io) & IOf_ARGV) { |
1130 | fp = nextargv(last_in_gv); |
1131 | if (fp) |
1132 | continue; |
1133 | (void)do_close(last_in_gv, FALSE); |
1134 | IoFLAGS(io) |= IOf_START; |
1135 | } |
1136 | else if (type == OP_GLOB) { |
1137 | (void)do_close(last_in_gv, FALSE); |
1138 | } |
1139 | if (GIMME == G_SCALAR) { |
1140 | (void)SvOK_off(TARG); |
1141 | PUSHTARG; |
1142 | } |
1143 | RETURN; |
1144 | } |
bbce6d69 |
1145 | /* This should not be marked tainted if the fp is marked clean */ |
1146 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1147 | TAINT; |
1148 | SvTAINTED_on(sv); |
1149 | } |
a0d0e21e |
1150 | IoLINES(io)++; |
71be2cbc |
1151 | SvSETMAGIC(sv); |
a0d0e21e |
1152 | XPUSHs(sv); |
a0d0e21e |
1153 | if (type == OP_GLOB) { |
1154 | char *tmps; |
1155 | |
c07a80fd |
1156 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1157 | tmps = SvEND(sv) - 1; |
1158 | if (*tmps == *SvPVX(rs)) { |
1159 | *tmps = '\0'; |
1160 | SvCUR(sv)--; |
1161 | } |
1162 | } |
a0d0e21e |
1163 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1164 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1165 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1166 | break; |
1167 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1168 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1169 | continue; |
1170 | } |
1171 | } |
1172 | if (GIMME == G_ARRAY) { |
1173 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1174 | SvLEN_set(sv, SvCUR(sv)+1); |
1175 | Renew(SvPVX(sv), SvLEN(sv), char); |
1176 | } |
1177 | sv = sv_2mortal(NEWSV(58, 80)); |
1178 | continue; |
1179 | } |
1180 | else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
1181 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1182 | if (SvCUR(sv) < 60) |
1183 | SvLEN_set(sv, 80); |
1184 | else |
1185 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1186 | Renew(SvPVX(sv), SvLEN(sv), char); |
1187 | } |
1188 | RETURN; |
1189 | } |
1190 | } |
1191 | |
1192 | PP(pp_enter) |
1193 | { |
1194 | dSP; |
1195 | register CONTEXT *cx; |
1196 | I32 gimme; |
1197 | |
1198 | /* |
1199 | * We don't just use the GIMME macro here because it assumes there's |
1200 | * already a context, which ain't necessarily so at initial startup. |
1201 | */ |
1202 | |
1203 | if (op->op_flags & OPf_KNOW) |
1204 | gimme = op->op_flags & OPf_LIST; |
1205 | else if (cxstack_ix >= 0) |
1206 | gimme = cxstack[cxstack_ix].blk_gimme; |
1207 | else |
1208 | gimme = G_SCALAR; |
1209 | |
1210 | ENTER; |
1211 | |
1212 | SAVETMPS; |
1213 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1214 | |
1215 | RETURN; |
1216 | } |
1217 | |
1218 | PP(pp_helem) |
1219 | { |
1220 | dSP; |
760ac839 |
1221 | HE* he; |
a0d0e21e |
1222 | SV *keysv = POPs; |
a0d0e21e |
1223 | HV *hv = (HV*)POPs; |
1224 | I32 lval = op->op_flags & OPf_MOD; |
1225 | |
1226 | if (SvTYPE(hv) != SVt_PVHV) |
1227 | RETPUSHUNDEF; |
760ac839 |
1228 | he = hv_fetch_ent(hv, keysv, lval, 0); |
a0d0e21e |
1229 | if (lval) { |
760ac839 |
1230 | if (!he || HeVAL(he) == &sv_undef) |
1231 | DIE(no_helem, SvPV(keysv, na)); |
5f05dabc |
1232 | if (op->op_private & OPpLVAL_INTRO) { |
1233 | if (HvNAME(hv) && isGV(HeVAL(he))) |
1234 | save_gp((GV*)HeVAL(he), !(op->op_flags & OPf_SPECIAL)); |
1235 | else |
1236 | save_svref(&HeVAL(he)); |
1237 | } |
1238 | else if (op->op_private & OPpDEREF) |
760ac839 |
1239 | provide_ref(op, HeVAL(he)); |
a0d0e21e |
1240 | } |
760ac839 |
1241 | PUSHs(he ? HeVAL(he) : &sv_undef); |
a0d0e21e |
1242 | RETURN; |
1243 | } |
1244 | |
1245 | PP(pp_leave) |
1246 | { |
1247 | dSP; |
1248 | register CONTEXT *cx; |
1249 | register SV **mark; |
1250 | SV **newsp; |
1251 | PMOP *newpm; |
1252 | I32 gimme; |
1253 | |
1254 | if (op->op_flags & OPf_SPECIAL) { |
1255 | cx = &cxstack[cxstack_ix]; |
1256 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1257 | } |
1258 | |
1259 | POPBLOCK(cx,newpm); |
1260 | |
1261 | if (op->op_flags & OPf_KNOW) |
1262 | gimme = op->op_flags & OPf_LIST; |
1263 | else if (cxstack_ix >= 0) |
1264 | gimme = cxstack[cxstack_ix].blk_gimme; |
1265 | else |
1266 | gimme = G_SCALAR; |
1267 | |
1268 | if (gimme == G_SCALAR) { |
1269 | if (op->op_private & OPpLEAVE_VOID) |
1270 | SP = newsp; |
1271 | else { |
1272 | MARK = newsp + 1; |
1273 | if (MARK <= SP) |
1274 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1275 | *MARK = TOPs; |
1276 | else |
1277 | *MARK = sv_mortalcopy(TOPs); |
1278 | else { |
1279 | MEXTEND(mark,0); |
1280 | *MARK = &sv_undef; |
1281 | } |
1282 | SP = MARK; |
1283 | } |
1284 | } |
1285 | else { |
1286 | for (mark = newsp + 1; mark <= SP; mark++) |
1287 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
1288 | *mark = sv_mortalcopy(*mark); |
1289 | /* in case LEAVE wipes old return values */ |
1290 | } |
1291 | curpm = newpm; /* Don't pop $1 et al till now */ |
1292 | |
1293 | LEAVE; |
1294 | |
1295 | RETURN; |
1296 | } |
1297 | |
1298 | PP(pp_iter) |
1299 | { |
1300 | dSP; |
1301 | register CONTEXT *cx; |
5f05dabc |
1302 | SV* sv; |
4633a7c4 |
1303 | AV* av; |
a0d0e21e |
1304 | |
1305 | EXTEND(sp, 1); |
1306 | cx = &cxstack[cxstack_ix]; |
1307 | if (cx->cx_type != CXt_LOOP) |
1308 | DIE("panic: pp_iter"); |
1309 | |
71be2cbc |
1310 | av = cx->blk_loop.iterary; |
1311 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
a0d0e21e |
1312 | RETPUSHNO; |
1313 | |
7a4c00b4 |
1314 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1315 | |
5f05dabc |
1316 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1317 | SvTEMP_off(sv); |
a0d0e21e |
1318 | else |
5f05dabc |
1319 | sv = &sv_undef; |
1320 | if (av != curstack && SvIMMORTAL(sv)) { |
1321 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1322 | if (lv && SvREFCNT(lv) > 1) { |
1323 | SvREFCNT_dec(lv); |
1324 | lv = Nullsv; |
1325 | } |
5f05dabc |
1326 | if (lv) |
1327 | SvREFCNT_dec(LvTARG(lv)); |
1328 | else { |
1329 | lv = cx->blk_loop.iterlval = newSVsv(sv); |
1330 | sv_upgrade(lv, SVt_PVLV); |
1331 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
1332 | LvTYPE(lv) = 'y'; |
1333 | } |
1334 | LvTARG(lv) = SvREFCNT_inc(av); |
1335 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
1336 | LvTARGLEN(lv) = 1; |
1337 | sv = (SV*)lv; |
1338 | } |
7a4c00b4 |
1339 | |
1340 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1341 | RETPUSHYES; |
1342 | } |
1343 | |
1344 | PP(pp_subst) |
1345 | { |
1346 | dSP; dTARG; |
1347 | register PMOP *pm = cPMOP; |
1348 | PMOP *rpm = pm; |
1349 | register SV *dstr; |
1350 | register char *s; |
1351 | char *strend; |
1352 | register char *m; |
1353 | char *c; |
1354 | register char *d; |
1355 | STRLEN clen; |
1356 | I32 iters = 0; |
1357 | I32 maxiters; |
1358 | register I32 i; |
1359 | bool once; |
71be2cbc |
1360 | bool rxtainted; |
a0d0e21e |
1361 | char *orig; |
1362 | I32 safebase; |
1363 | register REGEXP *rx = pm->op_pmregexp; |
1364 | STRLEN len; |
1365 | int force_on_match = 0; |
4633a7c4 |
1366 | I32 oldsave = savestack_ix; |
a0d0e21e |
1367 | |
1368 | if (pm->op_pmflags & PMf_CONST) /* known replacement string? */ |
1369 | dstr = POPs; |
1370 | if (op->op_flags & OPf_STACKED) |
1371 | TARG = POPs; |
1372 | else { |
1373 | TARG = GvSV(defgv); |
1374 | EXTEND(SP,1); |
1375 | } |
1376 | s = SvPV(TARG, len); |
8e07c86e |
1377 | if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV)) |
a0d0e21e |
1378 | force_on_match = 1; |
1379 | |
1380 | force_it: |
1381 | if (!pm || !s) |
1382 | DIE("panic: do_subst"); |
1383 | |
1384 | strend = s + len; |
1385 | maxiters = (strend - s) + 10; |
1386 | |
1387 | if (!rx->prelen && curpm) { |
1388 | pm = curpm; |
1389 | rx = pm->op_pmregexp; |
1390 | } |
5f05dabc |
1391 | safebase = (!rx->nparens && !sawampersand); |
a0d0e21e |
1392 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1393 | SAVEINT(multiline); |
1394 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1395 | } |
1396 | orig = m = s; |
1397 | if (pm->op_pmshort) { |
1398 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1399 | if (SvSCREAM(TARG)) { |
1400 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1401 | goto nope; |
1402 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1403 | goto nope; |
1404 | } |
1405 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1406 | pm->op_pmshort))) |
1407 | goto nope; |
1408 | if (s && rx->regback >= 0) { |
1409 | ++BmUSEFUL(pm->op_pmshort); |
1410 | s -= rx->regback; |
1411 | if (s < m) |
1412 | s = m; |
1413 | } |
1414 | else |
1415 | s = m; |
1416 | } |
1417 | else if (!multiline) { |
bbce6d69 |
1418 | if (*SvPVX(pm->op_pmshort) != *s |
1419 | || (pm->op_pmslen > 1 |
36477c24 |
1420 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
1421 | goto nope; |
a0d0e21e |
1422 | } |
1423 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1424 | SvREFCNT_dec(pm->op_pmshort); |
1425 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1426 | } |
1427 | } |
71be2cbc |
1428 | |
1429 | /* only replace once? */ |
a0d0e21e |
1430 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1431 | |
1432 | /* known replacement string? */ |
1433 | c = (rpm->op_pmflags & PMf_CONST) ? SvPV(dstr, clen) : Nullch; |
1434 | |
1435 | /* can do inplace substitution? */ |
1436 | if (c && clen <= rx->minlen) { |
1437 | if (! pregexec(rx, s, strend, orig, 0, |
1438 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1439 | PUSHs(&sv_no); |
1440 | LEAVE_SCOPE(oldsave); |
1441 | RETURN; |
1442 | } |
1443 | if (force_on_match) { |
1444 | force_on_match = 0; |
1445 | s = SvPV_force(TARG, len); |
1446 | goto force_it; |
1447 | } |
1448 | if (rx->subbase) /* oops, no we can't */ |
1449 | goto long_way; |
1450 | d = s; |
1451 | curpm = pm; |
1452 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1453 | if (once) { |
1454 | rxtainted = rx->exec_tainted; |
1455 | m = rx->startp[0]; |
1456 | d = rx->endp[0]; |
1457 | s = orig; |
1458 | if (m - s > strend - d) { /* faster to shorten from end */ |
1459 | if (clen) { |
1460 | Copy(c, m, clen, char); |
1461 | m += clen; |
a0d0e21e |
1462 | } |
71be2cbc |
1463 | i = strend - d; |
1464 | if (i > 0) { |
1465 | Move(d, m, i, char); |
1466 | m += i; |
a0d0e21e |
1467 | } |
71be2cbc |
1468 | *m = '\0'; |
1469 | SvCUR_set(TARG, m - s); |
1470 | } |
1471 | /*SUPPRESS 560*/ |
1472 | else if (i = m - s) { /* faster from front */ |
1473 | d -= clen; |
1474 | m = d; |
1475 | sv_chop(TARG, d-i); |
1476 | s += i; |
1477 | while (i--) |
1478 | *--d = *--s; |
1479 | if (clen) |
1480 | Copy(c, m, clen, char); |
1481 | } |
1482 | else if (clen) { |
1483 | d -= clen; |
1484 | sv_chop(TARG, d); |
1485 | Copy(c, d, clen, char); |
1486 | } |
1487 | else { |
1488 | sv_chop(TARG, d); |
1489 | } |
1490 | PUSHs(&sv_yes); |
1491 | } |
1492 | else { |
1493 | rxtainted = 0; |
1494 | do { |
1495 | if (iters++ > maxiters) |
1496 | DIE("Substitution loop"); |
1497 | rxtainted |= rx->exec_tainted; |
1498 | m = rx->startp[0]; |
1499 | /*SUPPRESS 560*/ |
1500 | if (i = m - s) { |
1501 | if (s != d) |
1502 | Move(s, d, i, char); |
1503 | d += i; |
a0d0e21e |
1504 | } |
71be2cbc |
1505 | if (clen) { |
1506 | Copy(c, d, clen, char); |
1507 | d += clen; |
1508 | } |
1509 | s = rx->endp[0]; |
1510 | } while (pregexec(rx, s, strend, orig, s == m, |
1511 | Nullsv, TRUE)); /* don't match same null twice */ |
1512 | if (s != d) { |
1513 | i = strend - s; |
1514 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1515 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1516 | } |
71be2cbc |
1517 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1518 | } |
71be2cbc |
1519 | (void)SvPOK_only(TARG); |
1520 | SvSETMAGIC(TARG); |
1521 | if (rxtainted) |
1522 | SvTAINTED_on(TARG); |
1523 | LEAVE_SCOPE(oldsave); |
1524 | RETURN; |
a0d0e21e |
1525 | } |
71be2cbc |
1526 | |
e50aee73 |
1527 | if (pregexec(rx, s, strend, orig, 0, |
5f05dabc |
1528 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
a0d0e21e |
1529 | long_way: |
1530 | if (force_on_match) { |
1531 | force_on_match = 0; |
1532 | s = SvPV_force(TARG, len); |
1533 | goto force_it; |
1534 | } |
71be2cbc |
1535 | rxtainted = rx->exec_tainted; |
a0d0e21e |
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"); |
71be2cbc |
1547 | rxtainted |= rx->exec_tainted; |
a0d0e21e |
1548 | if (rx->subbase && rx->subbase != orig) { |
1549 | m = s; |
1550 | s = orig; |
1551 | orig = rx->subbase; |
1552 | s = orig + (m - s); |
1553 | strend = s + (strend - m); |
1554 | } |
1555 | m = rx->startp[0]; |
1556 | sv_catpvn(dstr, s, m-s); |
1557 | s = rx->endp[0]; |
1558 | if (clen) |
1559 | sv_catpvn(dstr, c, clen); |
1560 | if (once) |
1561 | break; |
5f05dabc |
1562 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase)); |
a0d0e21e |
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); |
71be2cbc |
1575 | if (rxtainted) |
1576 | SvTAINTED_on(TARG); |
a0d0e21e |
1577 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1578 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1579 | RETURN; |
1580 | } |
1581 | PUSHs(&sv_no); |
4633a7c4 |
1582 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1583 | RETURN; |
1584 | |
1585 | nope: |
1586 | ++BmUSEFUL(pm->op_pmshort); |
1587 | PUSHs(&sv_no); |
4633a7c4 |
1588 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1589 | RETURN; |
1590 | } |
1591 | |
1592 | PP(pp_grepwhile) |
1593 | { |
1594 | dSP; |
1595 | |
1596 | if (SvTRUEx(POPs)) |
1597 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1598 | ++*markstack_ptr; |
1599 | LEAVE; /* exit inner scope */ |
1600 | |
1601 | /* All done yet? */ |
1602 | if (stack_base + *markstack_ptr > sp) { |
1603 | I32 items; |
1604 | |
1605 | LEAVE; /* exit outer scope */ |
1606 | (void)POPMARK; /* pop src */ |
1607 | items = --*markstack_ptr - markstack_ptr[-1]; |
1608 | (void)POPMARK; /* pop dst */ |
1609 | SP = stack_base + POPMARK; /* pop original mark */ |
1610 | if (GIMME != G_ARRAY) { |
1611 | dTARGET; |
1612 | XPUSHi(items); |
1613 | RETURN; |
1614 | } |
1615 | SP += items; |
1616 | RETURN; |
1617 | } |
1618 | else { |
1619 | SV *src; |
1620 | |
1621 | ENTER; /* enter inner scope */ |
1622 | SAVESPTR(curpm); |
1623 | |
1624 | src = stack_base[*markstack_ptr]; |
1625 | SvTEMP_off(src); |
1626 | GvSV(defgv) = src; |
1627 | |
1628 | RETURNOP(cLOGOP->op_other); |
1629 | } |
1630 | } |
1631 | |
1632 | PP(pp_leavesub) |
1633 | { |
1634 | dSP; |
1635 | SV **mark; |
1636 | SV **newsp; |
1637 | PMOP *newpm; |
1638 | I32 gimme; |
1639 | register CONTEXT *cx; |
1640 | |
1641 | POPBLOCK(cx,newpm); |
1642 | POPSUB(cx); |
1643 | |
1644 | if (gimme == G_SCALAR) { |
1645 | MARK = newsp + 1; |
1646 | if (MARK <= SP) |
1647 | if (SvFLAGS(TOPs) & SVs_TEMP) |
1648 | *MARK = TOPs; |
1649 | else |
1650 | *MARK = sv_mortalcopy(TOPs); |
1651 | else { |
1652 | MEXTEND(mark,0); |
1653 | *MARK = &sv_undef; |
1654 | } |
1655 | SP = MARK; |
1656 | } |
1657 | else { |
1658 | for (mark = newsp + 1; mark <= SP; mark++) |
1659 | if (!(SvFLAGS(*mark) & SVs_TEMP)) |
1660 | *mark = sv_mortalcopy(*mark); |
1661 | /* in case LEAVE wipes old return values */ |
1662 | } |
1663 | |
1664 | if (cx->blk_sub.hasargs) { /* You don't exist; go away. */ |
1665 | AV* av = cx->blk_sub.argarray; |
1666 | |
1667 | av_clear(av); |
1668 | AvREAL_off(av); |
1669 | } |
1670 | curpm = newpm; /* Don't pop $1 et al till now */ |
1671 | |
1672 | LEAVE; |
1673 | PUTBACK; |
1674 | return pop_return(); |
1675 | } |
1676 | |
1677 | PP(pp_entersub) |
1678 | { |
1679 | dSP; dPOPss; |
1680 | GV *gv; |
1681 | HV *stash; |
1682 | register CV *cv; |
1683 | register CONTEXT *cx; |
5d94fbed |
1684 | I32 gimme; |
07055b4c |
1685 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
1686 | bool may_clone = TRUE; |
a0d0e21e |
1687 | |
1688 | if (!sv) |
1689 | DIE("Not a CODE reference"); |
1690 | switch (SvTYPE(sv)) { |
1691 | default: |
1692 | if (!SvROK(sv)) { |
748a9306 |
1693 | char *sym; |
1694 | |
a0d0e21e |
1695 | if (sv == &sv_yes) /* unfound import, ignore */ |
1696 | RETURN; |
1697 | if (!SvOK(sv)) |
1698 | DIE(no_usym, "a subroutine"); |
748a9306 |
1699 | sym = SvPV(sv,na); |
a0d0e21e |
1700 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1701 | DIE(no_symref, sym, "a subroutine"); |
1702 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1703 | break; |
1704 | } |
1705 | cv = (CV*)SvRV(sv); |
07055b4c |
1706 | if (SvTYPE(cv) == SVt_PVCV) { |
1707 | may_clone = FALSE; |
a0d0e21e |
1708 | break; |
07055b4c |
1709 | } |
a0d0e21e |
1710 | /* FALL THROUGH */ |
1711 | case SVt_PVHV: |
1712 | case SVt_PVAV: |
1713 | DIE("Not a CODE reference"); |
1714 | case SVt_PVCV: |
1715 | cv = (CV*)sv; |
07055b4c |
1716 | may_clone = FALSE; |
a0d0e21e |
1717 | break; |
1718 | case SVt_PVGV: |
1719 | if (!(cv = GvCV((GV*)sv))) |
1720 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1721 | break; |
1722 | } |
1723 | |
1724 | ENTER; |
1725 | SAVETMPS; |
1726 | |
07055b4c |
1727 | if (may_clone && cv && CvCLONE(cv)) |
1728 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); |
1729 | |
a0d0e21e |
1730 | retry: |
1731 | if (!cv) |
1732 | DIE("Not a CODE reference"); |
1733 | |
1734 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
1735 | if (gv = CvGV(cv)) { |
4633a7c4 |
1736 | SV *tmpstr; |
a0d0e21e |
1737 | GV *ngv; |
4633a7c4 |
1738 | if (SvFAKE(cv) && GvCV(gv) != cv) { /* autoloaded stub? */ |
1739 | cv = GvCV(gv); |
1740 | if (SvTYPE(sv) == SVt_PVGV) { |
1741 | SvREFCNT_dec(GvCV((GV*)sv)); |
1742 | GvCV((GV*)sv) = (CV*)SvREFCNT_inc((SV*)cv); |
1743 | } |
1744 | goto retry; |
1745 | } |
1746 | tmpstr = sv_newmortal(); |
4f732624 |
1747 | gv_efullname3(tmpstr, gv, Nullch); |
a0d0e21e |
1748 | ngv = gv_fetchmethod(GvESTASH(gv), "AUTOLOAD"); |
1749 | if (ngv && ngv != gv && (cv = GvCV(ngv))) { /* One more chance... */ |
1750 | gv = ngv; |
1751 | sv_setsv(GvSV(CvGV(cv)), tmpstr); /* Set CV's $AUTOLOAD */ |
bbce6d69 |
1752 | SvTAINTED_off(GvSV(CvGV(cv))); |
a0d0e21e |
1753 | goto retry; |
1754 | } |
1755 | else |
1756 | DIE("Undefined subroutine &%s called",SvPVX(tmpstr)); |
1757 | } |
1758 | DIE("Undefined subroutine called"); |
1759 | } |
1760 | |
4633a7c4 |
1761 | gimme = GIMME; |
67955e0c |
1762 | if ((op->op_private & OPpENTERSUB_DB)) { |
71be2cbc |
1763 | SV *oldsv = sv; |
a0d0e21e |
1764 | sv = GvSV(DBsub); |
1765 | save_item(sv); |
67955e0c |
1766 | gv = CvGV(cv); |
71be2cbc |
1767 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1768 | || strEQ(GvNAME(gv), "END") |
1769 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1770 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) |
1771 | && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */ |
1772 | /* GV is potentially non-unique, or contain different CV. */ |
748a9306 |
1773 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 |
1774 | } |
748a9306 |
1775 | else { |
4f732624 |
1776 | gv_efullname3(sv, gv, Nullch); |
748a9306 |
1777 | } |
a0d0e21e |
1778 | cv = GvCV(DBsub); |
67955e0c |
1779 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e |
1780 | if (!cv) |
1781 | DIE("No DBsub routine"); |
1782 | } |
1783 | |
1784 | if (CvXSUB(cv)) { |
1785 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1786 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1787 | dMARK; |
1788 | register I32 items = SP - MARK; |
67955e0c |
1789 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1790 | while (sp > mark) { |
1791 | sp[1] = sp[0]; |
1792 | sp--; |
1793 | } |
1794 | stack_sp = mark + 1; |
ecfc5424 |
1795 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1796 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1797 | MARK - stack_base + 1, |
1798 | items); |
a0d0e21e |
1799 | stack_sp = stack_base + items; |
1800 | } |
1801 | else { |
748a9306 |
1802 | I32 markix = TOPMARK; |
1803 | |
a0d0e21e |
1804 | PUTBACK; |
67955e0c |
1805 | |
1806 | if (!hasargs) { |
1807 | /* Need to copy @_ to stack. Alternative may be to |
1808 | * switch stack to @_, and copy return values |
1809 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
1810 | AV* av = GvAV(defgv); |
1811 | I32 items = AvFILL(av) + 1; |
1812 | |
1813 | if (items) { |
1814 | /* Mark is at the end of the stack. */ |
1815 | EXTEND(sp, items); |
1816 | Copy(AvARRAY(av), sp + 1, items, SV*); |
1817 | sp += items; |
1818 | PUTBACK ; |
1819 | } |
1820 | } |
1821 | if (curcopdb) { /* We assume that the first |
1822 | XSUB in &DB::sub is the |
1823 | called one. */ |
1824 | SAVESPTR(curcop); |
1825 | curcop = curcopdb; |
1826 | curcopdb = NULL; |
1827 | } |
1828 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
1829 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
1830 | |
1831 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
1832 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
1833 | if (markix > stack_sp - stack_base) |
1834 | *(stack_base + markix) = &sv_undef; |
1835 | else |
1836 | *(stack_base + markix) = *stack_sp; |
1837 | stack_sp = stack_base + markix; |
1838 | } |
a0d0e21e |
1839 | } |
1840 | LEAVE; |
1841 | return NORMAL; |
1842 | } |
1843 | else { |
1844 | dMARK; |
1845 | register I32 items = SP - MARK; |
a0d0e21e |
1846 | AV* padlist = CvPADLIST(cv); |
1847 | SV** svp = AvARRAY(padlist); |
1848 | push_return(op->op_next); |
1849 | PUSHBLOCK(cx, CXt_SUB, MARK); |
1850 | PUSHSUB(cx); |
1851 | CvDEPTH(cv)++; |
1852 | if (CvDEPTH(cv) < 2) |
1853 | (void)SvREFCNT_inc(cv); |
1854 | else { /* save temporaries on recursion? */ |
5f05dabc |
1855 | if (CvDEPTH(cv) == 100 && dowarn |
1856 | && !(perldb && cv == GvCV(DBsub))) |
a0d0e21e |
1857 | warn("Deep recursion on subroutine \"%s\"",GvENAME(CvGV(cv))); |
1858 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1859 | AV *av; |
1860 | AV *newpad = newAV(); |
4aa0a1f7 |
1861 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1862 | I32 ix = AvFILL((AV*)svp[1]); |
1863 | svp = AvARRAY(svp[0]); |
748a9306 |
1864 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1865 | if (svp[ix] != &sv_undef) { |
748a9306 |
1866 | char *name = SvPVX(svp[ix]); |
5f05dabc |
1867 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
1868 | || *name == '&') /* anonymous code? */ |
1869 | { |
1870 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
1871 | } |
1872 | else { /* our own lexical */ |
1873 | if (*name == '@') |
1874 | av_store(newpad, ix, sv = (SV*)newAV()); |
1875 | else if (*name == '%') |
1876 | av_store(newpad, ix, sv = (SV*)newHV()); |
1877 | else |
1878 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1879 | SvPADMY_on(sv); |
1880 | } |
a0d0e21e |
1881 | } |
1882 | else { |
748a9306 |
1883 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1884 | SvPADTMP_on(sv); |
1885 | } |
1886 | } |
1887 | av = newAV(); /* will be @_ */ |
1888 | av_extend(av, 0); |
1889 | av_store(newpad, 0, (SV*)av); |
1890 | AvFLAGS(av) = AVf_REIFY; |
1891 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1892 | AvFILL(padlist) = CvDEPTH(cv); |
1893 | svp = AvARRAY(padlist); |
1894 | } |
1895 | } |
1896 | SAVESPTR(curpad); |
1897 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1898 | if (hasargs) { |
1899 | AV* av = (AV*)curpad[0]; |
1900 | SV** ary; |
1901 | |
1902 | if (AvREAL(av)) { |
1903 | av_clear(av); |
1904 | AvREAL_off(av); |
1905 | } |
1906 | cx->blk_sub.savearray = GvAV(defgv); |
1907 | cx->blk_sub.argarray = av; |
1908 | GvAV(defgv) = cx->blk_sub.argarray; |
1909 | ++MARK; |
1910 | |
1911 | if (items > AvMAX(av) + 1) { |
1912 | ary = AvALLOC(av); |
1913 | if (AvARRAY(av) != ary) { |
1914 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1915 | SvPVX(av) = (char*)ary; |
1916 | } |
1917 | if (items > AvMAX(av) + 1) { |
1918 | AvMAX(av) = items - 1; |
1919 | Renew(ary,items,SV*); |
1920 | AvALLOC(av) = ary; |
1921 | SvPVX(av) = (char*)ary; |
1922 | } |
1923 | } |
1924 | Copy(MARK,AvARRAY(av),items,SV*); |
1925 | AvFILL(av) = items - 1; |
1926 | |
1927 | while (items--) { |
1928 | if (*MARK) |
1929 | SvTEMP_off(*MARK); |
1930 | MARK++; |
1931 | } |
1932 | } |
1933 | RETURNOP(CvSTART(cv)); |
1934 | } |
1935 | } |
1936 | |
1937 | PP(pp_aelem) |
1938 | { |
1939 | dSP; |
1940 | SV** svp; |
748a9306 |
1941 | I32 elem = POPi; |
a0d0e21e |
1942 | AV *av = (AV*)POPs; |
1943 | I32 lval = op->op_flags & OPf_MOD; |
1944 | |
748a9306 |
1945 | if (elem > 0) |
1946 | elem -= curcop->cop_arybase; |
a0d0e21e |
1947 | if (SvTYPE(av) != SVt_PVAV) |
1948 | RETPUSHUNDEF; |
1949 | svp = av_fetch(av, elem, lval); |
1950 | if (lval) { |
1951 | if (!svp || *svp == &sv_undef) |
1952 | DIE(no_aelem, elem); |
1953 | if (op->op_private & OPpLVAL_INTRO) |
1954 | save_svref(svp); |
5f05dabc |
1955 | else if (op->op_private & OPpDEREF) |
02a9e968 |
1956 | provide_ref(op, *svp); |
a0d0e21e |
1957 | } |
1958 | PUSHs(svp ? *svp : &sv_undef); |
1959 | RETURN; |
1960 | } |
1961 | |
02a9e968 |
1962 | void |
1963 | provide_ref(op, sv) |
1964 | OP* op; |
1965 | SV* sv; |
1966 | { |
1967 | if (SvGMAGICAL(sv)) |
1968 | mg_get(sv); |
1969 | if (!SvOK(sv)) { |
1970 | if (SvREADONLY(sv)) |
1971 | croak(no_modify); |
5f05dabc |
1972 | if (SvTYPE(sv) < SVt_RV) |
1973 | sv_upgrade(sv, SVt_RV); |
1974 | else if (SvTYPE(sv) >= SVt_PV) { |
1975 | (void)SvOOK_off(sv); |
1976 | Safefree(SvPVX(sv)); |
1977 | SvLEN(sv) = SvCUR(sv) = 0; |
1978 | } |
1979 | switch (op->op_private & OPpDEREF) |
1980 | { |
1981 | case OPpDEREF_SV: |
1982 | SvRV(sv) = newSV(0); |
1983 | break; |
1984 | case OPpDEREF_AV: |
1985 | SvRV(sv) = (SV*)newAV(); |
1986 | break; |
1987 | case OPpDEREF_HV: |
1988 | SvRV(sv) = (SV*)newHV(); |
1989 | break; |
1990 | } |
02a9e968 |
1991 | SvROK_on(sv); |
1992 | SvSETMAGIC(sv); |
1993 | } |
1994 | } |
1995 | |
a0d0e21e |
1996 | PP(pp_method) |
1997 | { |
1998 | dSP; |
1999 | SV* sv; |
2000 | SV* ob; |
2001 | GV* gv; |
2002 | SV* nm; |
2003 | |
2004 | nm = TOPs; |
2005 | sv = *(stack_base + TOPMARK + 1); |
2006 | |
2007 | gv = 0; |
16d20bd9 |
2008 | if (SvGMAGICAL(sv)) |
2009 | mg_get(sv); |
a0d0e21e |
2010 | if (SvROK(sv)) |
16d20bd9 |
2011 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2012 | else { |
2013 | GV* iogv; |
2014 | char* packname = 0; |
67955e0c |
2015 | STRLEN packlen; |
a0d0e21e |
2016 | |
2017 | if (!SvOK(sv) || |
67955e0c |
2018 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2019 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2020 | !(ob=(SV*)GvIO(iogv))) |
2021 | { |
2022 | char *name = SvPV(nm, na); |
2023 | HV *stash; |
2024 | if (!packname || !isALPHA(*packname)) |
2025 | DIE("Can't call method \"%s\" without a package or object reference", name); |
67955e0c |
2026 | if (!(stash = gv_stashpvn(packname, packlen, FALSE))) { |
2027 | if (gv_stashpvn("UNIVERSAL", 9, FALSE)) |
2028 | stash = gv_stashpvn(packname, packlen, TRUE); |
a0d0e21e |
2029 | else |
2030 | DIE("Can't call method \"%s\" in empty package \"%s\"", |
2031 | name, packname); |
2032 | } |
2033 | gv = gv_fetchmethod(stash,name); |
2034 | if (!gv) |
2035 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2036 | name, packname); |
67955e0c |
2037 | SETs((SV*)gv); |
a0d0e21e |
2038 | RETURN; |
2039 | } |
67955e0c |
2040 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2041 | } |
2042 | |
2043 | if (!ob || !SvOBJECT(ob)) { |
2044 | char *name = SvPV(nm, na); |
2045 | DIE("Can't call method \"%s\" on unblessed reference", name); |
2046 | } |
2047 | |
2048 | if (!gv) { /* nothing cached */ |
2049 | char *name = SvPV(nm, na); |
2050 | gv = gv_fetchmethod(SvSTASH(ob),name); |
2051 | if (!gv) |
2052 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2053 | name, HvNAME(SvSTASH(ob))); |
2054 | } |
2055 | |
67955e0c |
2056 | SETs((SV*)gv); |
a0d0e21e |
2057 | RETURN; |
2058 | } |
2059 | |