Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
3 | * Copyright (c) 1991-1994, Larry Wall | |
4 | * | |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, | |
12 | * shaking the air. | |
13 | * | |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! | |
15 | * Fire, Foes! Awake! | |
16 | */ | |
17 | ||
18 | #include "EXTERN.h" | |
19 | #include "perl.h" | |
20 | ||
21 | /* Hot code. */ | |
22 | ||
23 | PP(pp_const) | |
24 | { | |
25 | dSP; | |
26 | XPUSHs(cSVOP->op_sv); | |
27 | RETURN; | |
28 | } | |
29 | ||
30 | PP(pp_nextstate) | |
31 | { | |
32 | curcop = (COP*)op; | |
33 | TAINT_NOT; /* Each statement is presumed innocent */ | |
34 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; | |
35 | FREETMPS; | |
36 | return NORMAL; | |
37 | } | |
38 | ||
39 | PP(pp_gvsv) | |
40 | { | |
41 | dSP; | |
42 | EXTEND(sp,1); | |
43 | if (op->op_private & OPpLVAL_INTRO) | |
44 | PUSHs(save_scalar(cGVOP->op_gv)); | |
45 | else | |
46 | PUSHs(GvSV(cGVOP->op_gv)); | |
47 | RETURN; | |
48 | } | |
49 | ||
50 | PP(pp_null) | |
51 | { | |
52 | return NORMAL; | |
53 | } | |
54 | ||
55 | PP(pp_pushmark) | |
56 | { | |
57 | PUSHMARK(stack_sp); | |
58 | return NORMAL; | |
59 | } | |
60 | ||
61 | PP(pp_stringify) | |
62 | { | |
63 | dSP; dTARGET; | |
64 | STRLEN len; | |
65 | char *s; | |
66 | s = SvPV(TOPs,len); | |
67 | sv_setpvn(TARG,s,len); | |
68 | SETTARG; | |
69 | RETURN; | |
70 | } | |
71 | ||
72 | PP(pp_gv) | |
73 | { | |
74 | dSP; | |
75 | XPUSHs((SV*)cGVOP->op_gv); | |
76 | RETURN; | |
77 | } | |
78 | ||
c07a80fd | 79 | PP(pp_gelem) |
80 | { | |
81 | GV *gv; | |
82 | SV *sv; | |
83 | SV *ref; | |
84 | char *elem; | |
85 | dSP; | |
86 | ||
87 | sv = POPs; | |
88 | elem = SvPV(sv, na); | |
89 | gv = (GV*)POPs; | |
90 | ref = Nullsv; | |
91 | sv = Nullsv; | |
92 | switch (elem ? *elem : '\0') | |
93 | { | |
94 | case 'A': | |
95 | if (strEQ(elem, "ARRAY")) | |
96 | ref = (SV*)GvAV(gv); | |
97 | break; | |
98 | case 'C': | |
99 | if (strEQ(elem, "CODE")) | |
100 | ref = (SV*)GvCV(gv); | |
101 | break; | |
102 | case 'F': | |
103 | if (strEQ(elem, "FILEHANDLE")) | |
104 | ref = (SV*)GvIOp(gv); | |
105 | break; | |
106 | case 'G': | |
107 | if (strEQ(elem, "GLOB")) | |
108 | ref = (SV*)gv; | |
109 | break; | |
110 | case 'H': | |
111 | if (strEQ(elem, "HASH")) | |
112 | ref = (SV*)GvHV(gv); | |
113 | break; | |
114 | case 'N': | |
115 | if (strEQ(elem, "NAME")) | |
116 | sv = newSVpv(GvNAME(gv), GvNAMELEN(gv)); | |
117 | break; | |
118 | case 'P': | |
119 | if (strEQ(elem, "PACKAGE")) | |
120 | sv = newSVpv(HvNAME(GvSTASH(gv)), 0); | |
121 | break; | |
122 | case 'S': | |
123 | if (strEQ(elem, "SCALAR")) | |
124 | ref = GvSV(gv); | |
125 | break; | |
126 | } | |
127 | if (ref) | |
128 | sv = newRV(ref); | |
129 | if (sv) | |
130 | sv_2mortal(sv); | |
131 | else | |
132 | sv = &sv_undef; | |
133 | XPUSHs(sv); | |
134 | RETURN; | |
135 | } | |
136 | ||
a0d0e21e LW |
137 | PP(pp_and) |
138 | { | |
139 | dSP; | |
140 | if (!SvTRUE(TOPs)) | |
141 | RETURN; | |
142 | else { | |
143 | --SP; | |
144 | RETURNOP(cLOGOP->op_other); | |
145 | } | |
146 | } | |
147 | ||
148 | PP(pp_sassign) | |
149 | { | |
150 | dSP; dPOPTOPssrl; | |
748a9306 LW |
151 | MAGIC *mg; |
152 | ||
a0d0e21e LW |
153 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
154 | SV *temp; | |
155 | temp = left; left = right; right = temp; | |
156 | } | |
157 | if (tainting && tainted && (!SvGMAGICAL(left) || !SvSMAGICAL(left) || | |
748a9306 LW |
158 | !((mg = mg_find(left, 't')) && mg->mg_len & 1))) |
159 | { | |
a0d0e21e LW |
160 | TAINT_NOT; |
161 | } | |
162 | SvSetSV(right, left); | |
163 | SvSETMAGIC(right); | |
164 | SETs(right); | |
165 | RETURN; | |
166 | } | |
167 | ||
168 | PP(pp_cond_expr) | |
169 | { | |
170 | dSP; | |
171 | if (SvTRUEx(POPs)) | |
172 | RETURNOP(cCONDOP->op_true); | |
173 | else | |
174 | RETURNOP(cCONDOP->op_false); | |
175 | } | |
176 | ||
177 | PP(pp_unstack) | |
178 | { | |
179 | I32 oldsave; | |
180 | TAINT_NOT; /* Each statement is presumed innocent */ | |
181 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; | |
182 | FREETMPS; | |
183 | oldsave = scopestack[scopestack_ix - 1]; | |
184 | LEAVE_SCOPE(oldsave); | |
185 | return NORMAL; | |
186 | } | |
187 | ||
188 | PP(pp_seq) | |
189 | { | |
190 | dSP; tryAMAGICbinSET(seq,0); | |
191 | { | |
192 | dPOPTOPssrl; | |
193 | SETs( sv_eq(left, right) ? &sv_yes : &sv_no ); | |
194 | RETURN; | |
195 | } | |
196 | } | |
197 | ||
198 | PP(pp_concat) | |
199 | { | |
748a9306 LW |
200 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
201 | { | |
202 | dPOPTOPssrl; | |
a0d0e21e LW |
203 | STRLEN len; |
204 | char *s; | |
205 | if (TARG != left) { | |
206 | s = SvPV(left,len); | |
207 | sv_setpvn(TARG,s,len); | |
208 | } | |
c07a80fd | 209 | else if (SvGMAGICAL(TARG)) |
210 | mg_get(TARG); | |
4633a7c4 LW |
211 | else if (!SvOK(TARG)) { |
212 | s = SvPV_force(TARG, len); | |
748a9306 | 213 | sv_setpv(TARG, ""); /* Suppress warning. */ |
4633a7c4 | 214 | } |
a0d0e21e LW |
215 | s = SvPV(right,len); |
216 | sv_catpvn(TARG,s,len); | |
217 | SETTARG; | |
218 | RETURN; | |
748a9306 | 219 | } |
a0d0e21e LW |
220 | } |
221 | ||
222 | PP(pp_padsv) | |
223 | { | |
224 | dSP; dTARGET; | |
225 | XPUSHs(TARG); | |
4633a7c4 LW |
226 | if (op->op_flags & OPf_MOD) { |
227 | if (op->op_private & OPpLVAL_INTRO) | |
228 | SAVECLEARSV(curpad[op->op_targ]); | |
02a9e968 CS |
229 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
230 | provide_ref(op, curpad[op->op_targ]); | |
4633a7c4 | 231 | } |
a0d0e21e LW |
232 | RETURN; |
233 | } | |
234 | ||
235 | PP(pp_readline) | |
236 | { | |
237 | last_in_gv = (GV*)(*stack_sp--); | |
238 | return do_readline(); | |
239 | } | |
240 | ||
241 | PP(pp_eq) | |
242 | { | |
243 | dSP; tryAMAGICbinSET(eq,0); | |
244 | { | |
245 | dPOPnv; | |
246 | SETs((TOPn == value) ? &sv_yes : &sv_no); | |
247 | RETURN; | |
248 | } | |
249 | } | |
250 | ||
251 | PP(pp_preinc) | |
252 | { | |
253 | dSP; | |
748a9306 LW |
254 | if (SvIOK(TOPs)) { |
255 | ++SvIVX(TOPs); | |
256 | SvFLAGS(TOPs) &= ~(SVf_NOK|SVf_POK|SVp_NOK|SVp_POK); | |
257 | } | |
258 | else | |
259 | sv_inc(TOPs); | |
a0d0e21e LW |
260 | SvSETMAGIC(TOPs); |
261 | return NORMAL; | |
262 | } | |
263 | ||
264 | PP(pp_or) | |
265 | { | |
266 | dSP; | |
267 | if (SvTRUE(TOPs)) | |
268 | RETURN; | |
269 | else { | |
270 | --SP; | |
271 | RETURNOP(cLOGOP->op_other); | |
272 | } | |
273 | } | |
274 | ||
275 | PP(pp_add) | |
276 | { | |
277 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); | |
278 | { | |
279 | dPOPTOPnnrl; | |
280 | SETn( left + right ); | |
281 | RETURN; | |
282 | } | |
283 | } | |
284 | ||
285 | PP(pp_aelemfast) | |
286 | { | |
287 | dSP; | |
288 | AV *av = GvAV((GV*)cSVOP->op_sv); | |
289 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); | |
290 | PUSHs(svp ? *svp : &sv_undef); | |
291 | RETURN; | |
292 | } | |
293 | ||
294 | PP(pp_join) | |
295 | { | |
296 | dSP; dMARK; dTARGET; | |
297 | MARK++; | |
298 | do_join(TARG, *MARK, MARK, SP); | |
299 | SP = MARK; | |
300 | SETs(TARG); | |
301 | RETURN; | |
302 | } | |
303 | ||
304 | PP(pp_pushre) | |
305 | { | |
306 | dSP; | |
307 | XPUSHs((SV*)op); | |
308 | RETURN; | |
309 | } | |
310 | ||
311 | /* Oversized hot code. */ | |
312 | ||
313 | PP(pp_print) | |
314 | { | |
315 | dSP; dMARK; dORIGMARK; | |
316 | GV *gv; | |
317 | IO *io; | |
318 | register FILE *fp; | |
319 | ||
320 | if (op->op_flags & OPf_STACKED) | |
321 | gv = (GV*)*++MARK; | |
322 | else | |
323 | gv = defoutgv; | |
324 | if (!(io = GvIO(gv))) { | |
748a9306 LW |
325 | if (dowarn) { |
326 | SV* sv = sv_newmortal(); | |
327 | gv_fullname(sv,gv); | |
328 | warn("Filehandle %s never opened", SvPV(sv,na)); | |
329 | } | |
330 | ||
331 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
332 | goto just_say_no; |
333 | } | |
334 | else if (!(fp = IoOFP(io))) { | |
335 | if (dowarn) { | |
748a9306 LW |
336 | SV* sv = sv_newmortal(); |
337 | gv_fullname(sv,gv); | |
a0d0e21e | 338 | if (IoIFP(io)) |
748a9306 | 339 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e | 340 | else |
748a9306 | 341 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e | 342 | } |
748a9306 | 343 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
344 | goto just_say_no; |
345 | } | |
346 | else { | |
347 | MARK++; | |
348 | if (ofslen) { | |
349 | while (MARK <= SP) { | |
350 | if (!do_print(*MARK, fp)) | |
351 | break; | |
352 | MARK++; | |
353 | if (MARK <= SP) { | |
354 | if (fwrite1(ofs, 1, ofslen, fp) == 0 || ferror(fp)) { | |
355 | MARK--; | |
356 | break; | |
357 | } | |
358 | } | |
359 | } | |
360 | } | |
361 | else { | |
362 | while (MARK <= SP) { | |
363 | if (!do_print(*MARK, fp)) | |
364 | break; | |
365 | MARK++; | |
366 | } | |
367 | } | |
368 | if (MARK <= SP) | |
369 | goto just_say_no; | |
370 | else { | |
371 | if (orslen) | |
372 | if (fwrite1(ors, 1, orslen, fp) == 0 || ferror(fp)) | |
373 | goto just_say_no; | |
374 | ||
375 | if (IoFLAGS(io) & IOf_FLUSH) | |
a5f75d66 | 376 | if (Fflush(fp) == EOF) |
a0d0e21e LW |
377 | goto just_say_no; |
378 | } | |
379 | } | |
380 | SP = ORIGMARK; | |
381 | PUSHs(&sv_yes); | |
382 | RETURN; | |
383 | ||
384 | just_say_no: | |
385 | SP = ORIGMARK; | |
386 | PUSHs(&sv_undef); | |
387 | RETURN; | |
388 | } | |
389 | ||
390 | PP(pp_rv2av) | |
391 | { | |
392 | dSP; dPOPss; | |
393 | ||
394 | AV *av; | |
395 | ||
396 | if (SvROK(sv)) { | |
397 | wasref: | |
398 | av = (AV*)SvRV(sv); | |
399 | if (SvTYPE(av) != SVt_PVAV) | |
400 | DIE("Not an ARRAY reference"); | |
401 | if (op->op_private & OPpLVAL_INTRO) | |
402 | av = (AV*)save_svref((SV**)sv); | |
403 | if (op->op_flags & OPf_REF) { | |
404 | PUSHs((SV*)av); | |
405 | RETURN; | |
406 | } | |
407 | } | |
408 | else { | |
409 | if (SvTYPE(sv) == SVt_PVAV) { | |
410 | av = (AV*)sv; | |
411 | if (op->op_flags & OPf_REF) { | |
412 | PUSHs((SV*)av); | |
413 | RETURN; | |
414 | } | |
415 | } | |
416 | else { | |
67955e0c | 417 | GV *gv; |
418 | ||
a0d0e21e | 419 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
420 | char *sym; |
421 | ||
a0d0e21e LW |
422 | if (SvGMAGICAL(sv)) { |
423 | mg_get(sv); | |
424 | if (SvROK(sv)) | |
425 | goto wasref; | |
426 | } | |
427 | if (!SvOK(sv)) { | |
428 | if (op->op_flags & OPf_REF || | |
429 | op->op_private & HINT_STRICT_REFS) | |
430 | DIE(no_usym, "an ARRAY"); | |
4633a7c4 LW |
431 | if (GIMME == G_ARRAY) |
432 | RETURN; | |
a0d0e21e LW |
433 | RETPUSHUNDEF; |
434 | } | |
748a9306 | 435 | sym = SvPV(sv,na); |
a0d0e21e | 436 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 437 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c | 438 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
439 | } else { | |
440 | gv = (GV*)sv; | |
a0d0e21e | 441 | } |
67955e0c | 442 | av = GvAVn(gv); |
a0d0e21e | 443 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 444 | av = save_ary(gv); |
a0d0e21e LW |
445 | if (op->op_flags & OPf_REF) { |
446 | PUSHs((SV*)av); | |
447 | RETURN; | |
448 | } | |
449 | } | |
450 | } | |
451 | ||
452 | if (GIMME == G_ARRAY) { | |
453 | I32 maxarg = AvFILL(av) + 1; | |
454 | EXTEND(SP, maxarg); | |
455 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
456 | SP += maxarg; | |
457 | } | |
458 | else { | |
459 | dTARGET; | |
460 | I32 maxarg = AvFILL(av) + 1; | |
461 | PUSHi(maxarg); | |
462 | } | |
463 | RETURN; | |
464 | } | |
465 | ||
466 | PP(pp_rv2hv) | |
467 | { | |
468 | ||
469 | dSP; dTOPss; | |
470 | ||
471 | HV *hv; | |
472 | ||
473 | if (SvROK(sv)) { | |
474 | wasref: | |
475 | hv = (HV*)SvRV(sv); | |
476 | if (SvTYPE(hv) != SVt_PVHV) | |
477 | DIE("Not a HASH reference"); | |
478 | if (op->op_private & OPpLVAL_INTRO) | |
479 | hv = (HV*)save_svref((SV**)sv); | |
480 | if (op->op_flags & OPf_REF) { | |
481 | SETs((SV*)hv); | |
482 | RETURN; | |
483 | } | |
484 | } | |
485 | else { | |
486 | if (SvTYPE(sv) == SVt_PVHV) { | |
487 | hv = (HV*)sv; | |
488 | if (op->op_flags & OPf_REF) { | |
489 | SETs((SV*)hv); | |
490 | RETURN; | |
491 | } | |
492 | } | |
493 | else { | |
67955e0c | 494 | GV *gv; |
495 | ||
a0d0e21e | 496 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
497 | char *sym; |
498 | ||
a0d0e21e LW |
499 | if (SvGMAGICAL(sv)) { |
500 | mg_get(sv); | |
501 | if (SvROK(sv)) | |
502 | goto wasref; | |
503 | } | |
504 | if (!SvOK(sv)) { | |
505 | if (op->op_flags & OPf_REF || | |
506 | op->op_private & HINT_STRICT_REFS) | |
507 | DIE(no_usym, "a HASH"); | |
4633a7c4 LW |
508 | if (GIMME == G_ARRAY) { |
509 | SP--; | |
510 | RETURN; | |
511 | } | |
a0d0e21e LW |
512 | RETSETUNDEF; |
513 | } | |
748a9306 | 514 | sym = SvPV(sv,na); |
a0d0e21e | 515 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 | 516 | DIE(no_symref, sym, "a HASH"); |
67955e0c | 517 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
518 | } else { | |
519 | gv = (GV*)sv; | |
a0d0e21e | 520 | } |
67955e0c | 521 | hv = GvHVn(gv); |
a0d0e21e | 522 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c | 523 | hv = save_hash(gv); |
a0d0e21e LW |
524 | if (op->op_flags & OPf_REF) { |
525 | SETs((SV*)hv); | |
526 | RETURN; | |
527 | } | |
528 | } | |
529 | } | |
530 | ||
531 | if (GIMME == G_ARRAY) { /* array wanted */ | |
532 | *stack_sp = (SV*)hv; | |
533 | return do_kv(ARGS); | |
534 | } | |
535 | else { | |
536 | dTARGET; | |
537 | if (HvFILL(hv)) { | |
538 | sprintf(buf, "%d/%d", HvFILL(hv), HvMAX(hv)+1); | |
539 | sv_setpv(TARG, buf); | |
540 | } | |
541 | else | |
542 | sv_setiv(TARG, 0); | |
543 | SETTARG; | |
544 | RETURN; | |
545 | } | |
546 | } | |
547 | ||
548 | PP(pp_aassign) | |
549 | { | |
550 | dSP; | |
551 | SV **lastlelem = stack_sp; | |
552 | SV **lastrelem = stack_base + POPMARK; | |
553 | SV **firstrelem = stack_base + POPMARK + 1; | |
554 | SV **firstlelem = lastrelem + 1; | |
555 | ||
556 | register SV **relem; | |
557 | register SV **lelem; | |
558 | ||
559 | register SV *sv; | |
560 | register AV *ary; | |
561 | ||
562 | HV *hash; | |
563 | I32 i; | |
564 | int magic; | |
565 | ||
566 | delaymagic = DM_DELAY; /* catch simultaneous items */ | |
567 | ||
568 | /* If there's a common identifier on both sides we have to take | |
569 | * special care that assigning the identifier on the left doesn't | |
570 | * clobber a value on the right that's used later in the list. | |
571 | */ | |
572 | if (op->op_private & OPpASSIGN_COMMON) { | |
573 | for (relem = firstrelem; relem <= lastrelem; relem++) { | |
574 | /*SUPPRESS 560*/ | |
575 | if (sv = *relem) | |
576 | *relem = sv_mortalcopy(sv); | |
577 | } | |
578 | } | |
579 | ||
580 | relem = firstrelem; | |
581 | lelem = firstlelem; | |
582 | ary = Null(AV*); | |
583 | hash = Null(HV*); | |
584 | while (lelem <= lastlelem) { | |
4633a7c4 | 585 | tainted = 0; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
586 | sv = *lelem++; |
587 | switch (SvTYPE(sv)) { | |
588 | case SVt_PVAV: | |
589 | ary = (AV*)sv; | |
748a9306 | 590 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
591 | |
592 | av_clear(ary); | |
593 | i = 0; | |
594 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
595 | sv = NEWSV(28,0); | |
596 | assert(*relem); | |
597 | sv_setsv(sv,*relem); | |
598 | *(relem++) = sv; | |
599 | (void)av_store(ary,i++,sv); | |
600 | if (magic) | |
601 | mg_set(sv); | |
4633a7c4 | 602 | tainted = 0; |
a0d0e21e LW |
603 | } |
604 | break; | |
605 | case SVt_PVHV: { | |
606 | char *tmps; | |
607 | SV *tmpstr; | |
608 | ||
609 | hash = (HV*)sv; | |
748a9306 | 610 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
611 | hv_clear(hash); |
612 | ||
613 | while (relem < lastrelem) { /* gobble up all the rest */ | |
614 | STRLEN len; | |
4633a7c4 | 615 | if (*relem) |
a0d0e21e | 616 | sv = *(relem++); |
4633a7c4 | 617 | else |
a0d0e21e LW |
618 | sv = &sv_no, relem++; |
619 | tmps = SvPV(sv, len); | |
620 | tmpstr = NEWSV(29,0); | |
621 | if (*relem) | |
622 | sv_setsv(tmpstr,*relem); /* value */ | |
623 | *(relem++) = tmpstr; | |
624 | (void)hv_store(hash,tmps,len,tmpstr,0); | |
625 | if (magic) | |
626 | mg_set(tmpstr); | |
4633a7c4 | 627 | tainted = 0; |
8e07c86e | 628 | } |
a0d0e21e LW |
629 | } |
630 | break; | |
631 | default: | |
632 | if (SvTHINKFIRST(sv)) { | |
633 | if (SvREADONLY(sv) && curcop != &compiling) { | |
634 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) | |
635 | DIE(no_modify); | |
636 | if (relem <= lastrelem) | |
637 | relem++; | |
638 | break; | |
639 | } | |
640 | if (SvROK(sv)) | |
641 | sv_unref(sv); | |
642 | } | |
643 | if (relem <= lastrelem) { | |
644 | sv_setsv(sv, *relem); | |
645 | *(relem++) = sv; | |
646 | } | |
647 | else | |
648 | sv_setsv(sv, &sv_undef); | |
649 | SvSETMAGIC(sv); | |
650 | break; | |
651 | } | |
652 | } | |
653 | if (delaymagic & ~DM_DELAY) { | |
654 | if (delaymagic & DM_UID) { | |
655 | #ifdef HAS_SETRESUID | |
656 | (void)setresuid(uid,euid,(Uid_t)-1); | |
56febc5e AD |
657 | #else |
658 | # ifdef HAS_SETREUID | |
a0d0e21e | 659 | (void)setreuid(uid,euid); |
56febc5e AD |
660 | # else |
661 | # ifdef HAS_SETRUID | |
a0d0e21e LW |
662 | if ((delaymagic & DM_UID) == DM_RUID) { |
663 | (void)setruid(uid); | |
748a9306 | 664 | delaymagic &= ~DM_RUID; |
a0d0e21e | 665 | } |
56febc5e AD |
666 | # endif /* HAS_SETRUID */ |
667 | # ifdef HAS_SETEUID | |
a0d0e21e LW |
668 | if ((delaymagic & DM_UID) == DM_EUID) { |
669 | (void)seteuid(uid); | |
748a9306 | 670 | delaymagic &= ~DM_EUID; |
a0d0e21e | 671 | } |
56febc5e | 672 | # endif /* HAS_SETEUID */ |
a0d0e21e LW |
673 | if (delaymagic & DM_UID) { |
674 | if (uid != euid) | |
675 | DIE("No setreuid available"); | |
676 | (void)setuid(uid); | |
677 | } | |
56febc5e AD |
678 | # endif /* HAS_SETREUID */ |
679 | #endif /* HAS_SETRESUID */ | |
a0d0e21e LW |
680 | uid = (int)getuid(); |
681 | euid = (int)geteuid(); | |
682 | } | |
683 | if (delaymagic & DM_GID) { | |
684 | #ifdef HAS_SETRESGID | |
685 | (void)setresgid(gid,egid,(Gid_t)-1); | |
56febc5e AD |
686 | #else |
687 | # ifdef HAS_SETREGID | |
a0d0e21e | 688 | (void)setregid(gid,egid); |
56febc5e AD |
689 | # else |
690 | # ifdef HAS_SETRGID | |
a0d0e21e LW |
691 | if ((delaymagic & DM_GID) == DM_RGID) { |
692 | (void)setrgid(gid); | |
748a9306 | 693 | delaymagic &= ~DM_RGID; |
a0d0e21e | 694 | } |
56febc5e AD |
695 | # endif /* HAS_SETRGID */ |
696 | # ifdef HAS_SETEGID | |
a0d0e21e LW |
697 | if ((delaymagic & DM_GID) == DM_EGID) { |
698 | (void)setegid(gid); | |
748a9306 | 699 | delaymagic &= ~DM_EGID; |
a0d0e21e | 700 | } |
56febc5e | 701 | # endif /* HAS_SETEGID */ |
a0d0e21e LW |
702 | if (delaymagic & DM_GID) { |
703 | if (gid != egid) | |
704 | DIE("No setregid available"); | |
705 | (void)setgid(gid); | |
706 | } | |
56febc5e AD |
707 | # endif /* HAS_SETREGID */ |
708 | #endif /* HAS_SETRESGID */ | |
a0d0e21e LW |
709 | gid = (int)getgid(); |
710 | egid = (int)getegid(); | |
711 | } | |
4633a7c4 | 712 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e LW |
713 | } |
714 | delaymagic = 0; | |
715 | if (GIMME == G_ARRAY) { | |
716 | if (ary || hash) | |
717 | SP = lastrelem; | |
718 | else | |
719 | SP = firstrelem + (lastlelem - firstlelem); | |
720 | RETURN; | |
721 | } | |
722 | else { | |
4633a7c4 | 723 | dTARGET; |
a0d0e21e | 724 | SP = firstrelem; |
a0d0e21e | 725 | |
4633a7c4 LW |
726 | SETi(lastrelem - firstrelem + 1); |
727 | RETURN; | |
a0d0e21e LW |
728 | } |
729 | } | |
730 | ||
731 | PP(pp_match) | |
732 | { | |
733 | dSP; dTARG; | |
734 | register PMOP *pm = cPMOP; | |
735 | register char *t; | |
736 | register char *s; | |
737 | char *strend; | |
738 | I32 global; | |
739 | I32 safebase; | |
740 | char *truebase; | |
741 | register REGEXP *rx = pm->op_pmregexp; | |
742 | I32 gimme = GIMME; | |
743 | STRLEN len; | |
748a9306 | 744 | I32 minmatch = 0; |
4633a7c4 | 745 | I32 oldsave = savestack_ix; |
a0d0e21e LW |
746 | |
747 | if (op->op_flags & OPf_STACKED) | |
748 | TARG = POPs; | |
749 | else { | |
750 | TARG = GvSV(defgv); | |
751 | EXTEND(SP,1); | |
752 | } | |
753 | s = SvPV(TARG, len); | |
754 | strend = s + len; | |
755 | if (!s) | |
756 | DIE("panic: do_match"); | |
757 | ||
758 | if (pm->op_pmflags & PMf_USED) { | |
759 | if (gimme == G_ARRAY) | |
760 | RETURN; | |
761 | RETPUSHNO; | |
762 | } | |
763 | ||
764 | if (!rx->prelen && curpm) { | |
765 | pm = curpm; | |
766 | rx = pm->op_pmregexp; | |
767 | } | |
768 | truebase = t = s; | |
769 | if (global = pm->op_pmflags & PMf_GLOBAL) { | |
770 | rx->startp[0] = 0; | |
771 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { | |
772 | MAGIC* mg = mg_find(TARG, 'g'); | |
748a9306 | 773 | if (mg && mg->mg_len >= 0) { |
a0d0e21e | 774 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 LW |
775 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
776 | } | |
a0d0e21e LW |
777 | } |
778 | } | |
748a9306 LW |
779 | if (!rx->nparens && !global) |
780 | gimme = G_SCALAR; /* accidental array context? */ | |
a0d0e21e LW |
781 | safebase = (gimme == G_ARRAY) || global; |
782 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { | |
783 | SAVEINT(multiline); | |
784 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
785 | } | |
786 | ||
787 | play_it_again: | |
788 | if (global && rx->startp[0]) { | |
789 | t = s = rx->endp[0]; | |
790 | if (s > strend) | |
791 | goto nope; | |
748a9306 | 792 | minmatch = (s == rx->startp[0]); |
a0d0e21e LW |
793 | } |
794 | if (pm->op_pmshort) { | |
795 | if (pm->op_pmflags & PMf_SCANFIRST) { | |
796 | if (SvSCREAM(TARG)) { | |
797 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) | |
798 | goto nope; | |
799 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) | |
800 | goto nope; | |
801 | else if (pm->op_pmflags & PMf_ALL) | |
802 | goto yup; | |
803 | } | |
804 | else if (!(s = fbm_instr((unsigned char*)s, | |
805 | (unsigned char*)strend, pm->op_pmshort))) | |
806 | goto nope; | |
807 | else if (pm->op_pmflags & PMf_ALL) | |
808 | goto yup; | |
809 | if (s && rx->regback >= 0) { | |
810 | ++BmUSEFUL(pm->op_pmshort); | |
811 | s -= rx->regback; | |
812 | if (s < t) | |
813 | s = t; | |
814 | } | |
815 | else | |
816 | s = t; | |
817 | } | |
818 | else if (!multiline) { | |
819 | if (*SvPVX(pm->op_pmshort) != *s || | |
820 | bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) { | |
821 | if (pm->op_pmflags & PMf_FOLD) { | |
822 | if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) ) | |
823 | goto nope; | |
824 | } | |
825 | else | |
826 | goto nope; | |
827 | } | |
828 | } | |
829 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { | |
830 | SvREFCNT_dec(pm->op_pmshort); | |
831 | pm->op_pmshort = Nullsv; /* opt is being useless */ | |
832 | } | |
833 | } | |
e50aee73 | 834 | if (pregexec(rx, s, strend, truebase, minmatch, |
a0d0e21e LW |
835 | SvSCREAM(TARG) ? TARG : Nullsv, |
836 | safebase)) { | |
837 | curpm = pm; | |
838 | if (pm->op_pmflags & PMf_ONCE) | |
839 | pm->op_pmflags |= PMf_USED; | |
840 | goto gotcha; | |
841 | } | |
842 | else | |
843 | goto ret_no; | |
844 | /*NOTREACHED*/ | |
845 | ||
846 | gotcha: | |
847 | if (gimme == G_ARRAY) { | |
848 | I32 iters, i, len; | |
849 | ||
850 | iters = rx->nparens; | |
851 | if (global && !iters) | |
852 | i = 1; | |
853 | else | |
854 | i = 0; | |
855 | EXTEND(SP, iters + i); | |
856 | for (i = !i; i <= iters; i++) { | |
857 | PUSHs(sv_newmortal()); | |
858 | /*SUPPRESS 560*/ | |
859 | if ((s = rx->startp[i]) && rx->endp[i] ) { | |
860 | len = rx->endp[i] - s; | |
861 | sv_setpvn(*SP, s, len); | |
862 | } | |
863 | } | |
864 | if (global) { | |
865 | truebase = rx->subbeg; | |
866 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) | |
867 | ++rx->endp[0]; | |
868 | goto play_it_again; | |
869 | } | |
4633a7c4 | 870 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
871 | RETURN; |
872 | } | |
873 | else { | |
874 | if (global) { | |
875 | MAGIC* mg = 0; | |
876 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
877 | mg = mg_find(TARG, 'g'); | |
878 | if (!mg) { | |
879 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
880 | mg = mg_find(TARG, 'g'); | |
881 | } | |
748a9306 LW |
882 | if (rx->startp[0]) { |
883 | mg->mg_len = rx->endp[0] - truebase; | |
884 | if (rx->startp[0] == rx->endp[0]) | |
885 | mg->mg_flags |= MGf_MINMATCH; | |
886 | else | |
887 | mg->mg_flags &= ~MGf_MINMATCH; | |
888 | } | |
889 | else | |
890 | mg->mg_len = -1; | |
a0d0e21e | 891 | } |
4633a7c4 | 892 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
893 | RETPUSHYES; |
894 | } | |
895 | ||
896 | yup: | |
897 | ++BmUSEFUL(pm->op_pmshort); | |
898 | curpm = pm; | |
899 | if (pm->op_pmflags & PMf_ONCE) | |
900 | pm->op_pmflags |= PMf_USED; | |
901 | if (global) { | |
902 | rx->subbeg = truebase; | |
903 | rx->subend = strend; | |
904 | rx->startp[0] = s; | |
905 | rx->endp[0] = s + SvCUR(pm->op_pmshort); | |
906 | goto gotcha; | |
907 | } | |
908 | if (sawampersand) { | |
909 | char *tmps; | |
910 | ||
911 | if (rx->subbase) | |
912 | Safefree(rx->subbase); | |
913 | tmps = rx->subbase = savepvn(t, strend-t); | |
914 | rx->subbeg = tmps; | |
915 | rx->subend = tmps + (strend-t); | |
916 | tmps = rx->startp[0] = tmps + (s - t); | |
917 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); | |
918 | } | |
4633a7c4 | 919 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
920 | RETPUSHYES; |
921 | ||
922 | nope: | |
923 | if (pm->op_pmshort) | |
924 | ++BmUSEFUL(pm->op_pmshort); | |
925 | ||
926 | ret_no: | |
927 | if (global) { | |
928 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { | |
929 | MAGIC* mg = mg_find(TARG, 'g'); | |
930 | if (mg) | |
931 | mg->mg_len = -1; | |
932 | } | |
933 | } | |
4633a7c4 | 934 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
935 | if (gimme == G_ARRAY) |
936 | RETURN; | |
937 | RETPUSHNO; | |
938 | } | |
939 | ||
940 | OP * | |
941 | do_readline() | |
942 | { | |
943 | dSP; dTARGETSTACKED; | |
944 | register SV *sv; | |
945 | STRLEN tmplen = 0; | |
946 | STRLEN offset; | |
947 | FILE *fp; | |
948 | register IO *io = GvIO(last_in_gv); | |
949 | register I32 type = op->op_type; | |
950 | ||
951 | fp = Nullfp; | |
952 | if (io) { | |
953 | fp = IoIFP(io); | |
954 | if (!fp) { | |
955 | if (IoFLAGS(io) & IOf_ARGV) { | |
956 | if (IoFLAGS(io) & IOf_START) { | |
957 | IoFLAGS(io) &= ~IOf_START; | |
958 | IoLINES(io) = 0; | |
959 | if (av_len(GvAVn(last_in_gv)) < 0) { | |
960 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ | |
961 | av_push(GvAVn(last_in_gv), tmpstr); | |
962 | } | |
963 | } | |
964 | fp = nextargv(last_in_gv); | |
965 | if (!fp) { /* Note: fp != IoIFP(io) */ | |
966 | (void)do_close(last_in_gv, FALSE); /* now it does*/ | |
967 | IoFLAGS(io) |= IOf_START; | |
968 | } | |
969 | } | |
970 | else if (type == OP_GLOB) { | |
971 | SV *tmpcmd = NEWSV(55, 0); | |
972 | SV *tmpglob = POPs; | |
973 | ENTER; | |
974 | SAVEFREESV(tmpcmd); | |
975 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
976 | /* since spawning off a process is a real performance hit */ | |
977 | { | |
978 | #include <descrip.h> | |
979 | #include <lib$routines.h> | |
980 | #include <nam.h> | |
981 | #include <rmsdef.h> | |
982 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
983 | char vmsspec[NAM$C_MAXRSS+1]; | |
984 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
985 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
986 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
987 | FILE *tmpfp; | |
988 | STRLEN i; | |
989 | struct dsc$descriptor_s wilddsc | |
990 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
991 | struct dsc$descriptor_vs rsdsc | |
992 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
993 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
994 | ||
995 | /* We could find out if there's an explicit dev/dir or version | |
996 | by peeking into lib$find_file's internal context at | |
997 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
998 | but that's unsupported, so I don't want to do it now and | |
999 | have it bite someone in the future. */ | |
1000 | strcat(tmpfnam,tmpnam(NULL)); | |
1001 | cp = SvPV(tmpglob,i); | |
1002 | for (; i; i--) { | |
1003 | if (cp[i] == ';') hasver = 1; | |
1004 | if (cp[i] == '.') { | |
1005 | if (sts) hasver = 1; | |
1006 | else sts = 1; | |
1007 | } | |
1008 | if (cp[i] == '/') { | |
1009 | hasdir = isunix = 1; | |
1010 | break; | |
748a9306 | 1011 | } |
a0d0e21e LW |
1012 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1013 | hasdir = 1; | |
1014 | break; | |
1015 | } | |
1016 | } | |
1017 | if ((tmpfp = fopen(tmpfnam,"w+","fop=dlt")) != NULL) { | |
1018 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
1019 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); | |
1020 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1021 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1022 | end = rstr + (unsigned long int) *rslt; | |
1023 | if (!hasver) while (*end != ';') end--; | |
1024 | *(end++) = '\n'; *end = '\0'; | |
1025 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1026 | if (hasdir) { | |
271c2963 | 1027 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob)); |
a0d0e21e LW |
1028 | begin = rstr; |
1029 | } | |
1030 | else { | |
1031 | begin = end; | |
1032 | while (*(--begin) != ']' && *begin != '>') ; | |
1033 | ++begin; | |
1034 | } | |
1035 | ok = (fputs(begin,tmpfp) != EOF); | |
1036 | } | |
1037 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1038 | if (ok && sts != RMS$_NMF && |
1039 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1040 | if (!ok) { |
c07a80fd | 1041 | if (!(sts & 1)) { |
1042 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1043 | } | |
1044 | fclose(tmpfp); | |
a0d0e21e LW |
1045 | fp = NULL; |
1046 | } | |
1047 | else { | |
1048 | rewind(tmpfp); | |
1049 | IoTYPE(io) = '<'; | |
1050 | IoIFP(io) = fp = tmpfp; | |
1051 | } | |
1052 | } | |
1053 | } | |
1054 | #else /* !VMS */ | |
1055 | #ifdef DOSISH | |
67955e0c | 1056 | #ifdef OS2 |
1057 | sv_setpv(tmpcmd, "for a in "); | |
1058 | sv_catsv(tmpcmd, tmpglob); | |
1059 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1060 | #else | |
a0d0e21e LW |
1061 | sv_setpv(tmpcmd, "perlglob "); |
1062 | sv_catsv(tmpcmd, tmpglob); | |
1063 | sv_catpv(tmpcmd, " |"); | |
67955e0c | 1064 | #endif /* !OS2 */ |
1065 | #else /* !DOSISH */ | |
1066 | #if defined(CSH) | |
a0d0e21e LW |
1067 | sv_setpvn(tmpcmd, cshname, cshlen); |
1068 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); | |
1069 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1070 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1071 | #else |
1072 | sv_setpv(tmpcmd, "echo "); | |
1073 | sv_catsv(tmpcmd, tmpglob); | |
1074 | #if 'z' - 'a' == 25 | |
1075 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1076 | #else | |
1077 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1078 | #endif | |
1079 | #endif /* !CSH */ | |
67955e0c | 1080 | #endif /* !DOSISH */ |
c07a80fd | 1081 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1082 | FALSE, 0, 0, Nullfp); | |
a0d0e21e LW |
1083 | fp = IoIFP(io); |
1084 | #endif /* !VMS */ | |
1085 | LEAVE; | |
1086 | } | |
1087 | } | |
1088 | else if (type == OP_GLOB) | |
1089 | SP--; | |
1090 | } | |
1091 | if (!fp) { | |
4633a7c4 | 1092 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e LW |
1093 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
1094 | if (GIMME == G_SCALAR) { | |
1095 | (void)SvOK_off(TARG); | |
1096 | PUSHTARG; | |
1097 | } | |
1098 | RETURN; | |
1099 | } | |
1100 | if (GIMME == G_ARRAY) { | |
1101 | sv = sv_2mortal(NEWSV(57, 80)); | |
1102 | offset = 0; | |
1103 | } | |
1104 | else { | |
1105 | sv = TARG; | |
1106 | (void)SvUPGRADE(sv, SVt_PV); | |
1107 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1108 | if (!tmplen) | |
1109 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1110 | if (type == OP_RCATLINE) | |
1111 | offset = SvCUR(sv); | |
1112 | else | |
1113 | offset = 0; | |
1114 | } | |
1115 | for (;;) { | |
1116 | if (!sv_gets(sv, fp, offset)) { | |
1117 | clearerr(fp); | |
1118 | if (IoFLAGS(io) & IOf_ARGV) { | |
1119 | fp = nextargv(last_in_gv); | |
1120 | if (fp) | |
1121 | continue; | |
1122 | (void)do_close(last_in_gv, FALSE); | |
1123 | IoFLAGS(io) |= IOf_START; | |
1124 | } | |
1125 | else if (type == OP_GLOB) { | |
1126 | (void)do_close(last_in_gv, FALSE); | |
1127 | } | |
1128 | if (GIMME == G_SCALAR) { | |
1129 | (void)SvOK_off(TARG); | |
1130 | PUSHTARG; | |
1131 | } | |
1132 | RETURN; | |
1133 | } | |
1134 | IoLINES(io)++; | |
1135 | XPUSHs(sv); | |
1136 | if (tainting) { | |
1137 | tainted = TRUE; | |
1138 | SvTAINT(sv); /* Anything from the outside world...*/ | |
1139 | } | |
1140 | if (type == OP_GLOB) { | |
1141 | char *tmps; | |
1142 | ||
c07a80fd | 1143 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1144 | tmps = SvEND(sv) - 1; | |
1145 | if (*tmps == *SvPVX(rs)) { | |
1146 | *tmps = '\0'; | |
1147 | SvCUR(sv)--; | |
1148 | } | |
1149 | } | |
a0d0e21e LW |
1150 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1151 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1152 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1153 | break; | |
1154 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { | |
1155 | (void)POPs; /* Unmatched wildcard? Chuck it... */ | |
1156 | continue; | |
1157 | } | |
1158 | } | |
1159 | if (GIMME == G_ARRAY) { | |
1160 | if (SvLEN(sv) - SvCUR(sv) > 20) { | |
1161 | SvLEN_set(sv, SvCUR(sv)+1); | |
1162 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1163 | } | |
1164 | sv = sv_2mortal(NEWSV(58, 80)); | |
1165 | continue; | |
1166 | } | |
1167 | else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) { | |
1168 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ | |
1169 | if (SvCUR(sv) < 60) | |
1170 | SvLEN_set(sv, 80); | |
1171 | else | |
1172 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1173 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1174 | } | |
1175 | RETURN; | |
1176 | } | |
1177 | } | |
1178 | ||
1179 | PP(pp_enter) | |
1180 | { | |
1181 | dSP; | |
1182 | register CONTEXT *cx; | |
1183 | I32 gimme; | |
1184 | ||
1185 | /* | |
1186 | * We don't just use the GIMME macro here because it assumes there's | |
1187 | * already a context, which ain't necessarily so at initial startup. | |
1188 | */ | |
1189 | ||
1190 | if (op->op_flags & OPf_KNOW) | |
1191 | gimme = op->op_flags & OPf_LIST; | |
1192 | else if (cxstack_ix >= 0) | |
1193 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1194 | else | |
1195 | gimme = G_SCALAR; | |
1196 | ||
1197 | ENTER; | |
1198 | ||
1199 | SAVETMPS; | |
1200 | PUSHBLOCK(cx, CXt_BLOCK, sp); | |
1201 | ||
1202 | RETURN; | |
1203 | } | |
1204 | ||
1205 | PP(pp_helem) | |
1206 | { | |
1207 | dSP; | |
1208 | SV** svp; | |
1209 | SV *keysv = POPs; | |
1210 | STRLEN keylen; | |
1211 | char *key = SvPV(keysv, keylen); | |
1212 | HV *hv = (HV*)POPs; | |
1213 | I32 lval = op->op_flags & OPf_MOD; | |
1214 | ||
1215 | if (SvTYPE(hv) != SVt_PVHV) | |
1216 | RETPUSHUNDEF; | |
1217 | svp = hv_fetch(hv, key, keylen, lval); | |
1218 | if (lval) { | |
1219 | if (!svp || *svp == &sv_undef) | |
1220 | DIE(no_helem, key); | |
1221 | if (op->op_private & OPpLVAL_INTRO) | |
1222 | save_svref(svp); | |
02a9e968 CS |
1223 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
1224 | provide_ref(op, *svp); | |
a0d0e21e LW |
1225 | } |
1226 | PUSHs(svp ? *svp : &sv_undef); | |
1227 | RETURN; | |
1228 | } | |
1229 | ||
1230 | PP(pp_leave) | |
1231 | { | |
1232 | dSP; | |
1233 | register CONTEXT *cx; | |
1234 | register SV **mark; | |
1235 | SV **newsp; | |
1236 | PMOP *newpm; | |
1237 | I32 gimme; | |
1238 | ||
1239 | if (op->op_flags & OPf_SPECIAL) { | |
1240 | cx = &cxstack[cxstack_ix]; | |
1241 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ | |
1242 | } | |
1243 | ||
1244 | POPBLOCK(cx,newpm); | |
1245 | ||
1246 | if (op->op_flags & OPf_KNOW) | |
1247 | gimme = op->op_flags & OPf_LIST; | |
1248 | else if (cxstack_ix >= 0) | |
1249 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1250 | else | |
1251 | gimme = G_SCALAR; | |
1252 | ||
1253 | if (gimme == G_SCALAR) { | |
1254 | if (op->op_private & OPpLEAVE_VOID) | |
1255 | SP = newsp; | |
1256 | else { | |
1257 | MARK = newsp + 1; | |
1258 | if (MARK <= SP) | |
1259 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1260 | *MARK = TOPs; | |
1261 | else | |
1262 | *MARK = sv_mortalcopy(TOPs); | |
1263 | else { | |
1264 | MEXTEND(mark,0); | |
1265 | *MARK = &sv_undef; | |
1266 | } | |
1267 | SP = MARK; | |
1268 | } | |
1269 | } | |
1270 | else { | |
1271 | for (mark = newsp + 1; mark <= SP; mark++) | |
1272 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) | |
1273 | *mark = sv_mortalcopy(*mark); | |
1274 | /* in case LEAVE wipes old return values */ | |
1275 | } | |
1276 | curpm = newpm; /* Don't pop $1 et al till now */ | |
1277 | ||
1278 | LEAVE; | |
1279 | ||
1280 | RETURN; | |
1281 | } | |
1282 | ||
1283 | PP(pp_iter) | |
1284 | { | |
1285 | dSP; | |
1286 | register CONTEXT *cx; | |
1287 | SV *sv; | |
4633a7c4 | 1288 | AV* av; |
a0d0e21e LW |
1289 | |
1290 | EXTEND(sp, 1); | |
1291 | cx = &cxstack[cxstack_ix]; | |
1292 | if (cx->cx_type != CXt_LOOP) | |
1293 | DIE("panic: pp_iter"); | |
4633a7c4 | 1294 | av = cx->blk_loop.iterary; |
67955e0c | 1295 | if (av == curstack && cx->blk_loop.iterix >= cx->blk_oldsp) |
4633a7c4 | 1296 | RETPUSHNO; |
a0d0e21e | 1297 | |
4633a7c4 | 1298 | if (cx->blk_loop.iterix >= AvFILL(av)) |
a0d0e21e LW |
1299 | RETPUSHNO; |
1300 | ||
4633a7c4 | 1301 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) { |
a0d0e21e LW |
1302 | SvTEMP_off(sv); |
1303 | *cx->blk_loop.itervar = sv; | |
1304 | } | |
1305 | else | |
1306 | *cx->blk_loop.itervar = &sv_undef; | |
1307 | ||
1308 | RETPUSHYES; | |
1309 | } | |
1310 | ||
1311 | PP(pp_subst) | |
1312 | { | |
1313 | dSP; dTARG; | |
1314 | register PMOP *pm = cPMOP; | |
1315 | PMOP *rpm = pm; | |
1316 | register SV *dstr; | |
1317 | register char *s; | |
1318 | char *strend; | |
1319 | register char *m; | |
1320 | char *c; | |
1321 | register char *d; | |
1322 | STRLEN clen; | |
1323 | I32 iters = 0; | |
1324 | I32 maxiters; | |
1325 | register I32 i; | |
1326 | bool once; | |
1327 | char *orig; | |
1328 | I32 safebase; | |
1329 | register REGEXP *rx = pm->op_pmregexp; | |
1330 | STRLEN len; | |
1331 | int force_on_match = 0; | |
4633a7c4 | 1332 | I32 oldsave = savestack_ix; |
a0d0e21e LW |
1333 | |
1334 | if (pm->op_pmflags & PMf_CONST) /* known replacement string? */ | |
1335 | dstr = POPs; | |
1336 | if (op->op_flags & OPf_STACKED) | |
1337 | TARG = POPs; | |
1338 | else { | |
1339 | TARG = GvSV(defgv); | |
1340 | EXTEND(SP,1); | |
1341 | } | |
1342 | s = SvPV(TARG, len); | |
8e07c86e | 1343 | if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV)) |
a0d0e21e LW |
1344 | force_on_match = 1; |
1345 | ||
1346 | force_it: | |
1347 | if (!pm || !s) | |
1348 | DIE("panic: do_subst"); | |
1349 | ||
1350 | strend = s + len; | |
1351 | maxiters = (strend - s) + 10; | |
1352 | ||
1353 | if (!rx->prelen && curpm) { | |
1354 | pm = curpm; | |
1355 | rx = pm->op_pmregexp; | |
1356 | } | |
1357 | safebase = ((!rx || !rx->nparens) && !sawampersand); | |
1358 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { | |
1359 | SAVEINT(multiline); | |
1360 | multiline = pm->op_pmflags & PMf_MULTILINE; | |
1361 | } | |
1362 | orig = m = s; | |
1363 | if (pm->op_pmshort) { | |
1364 | if (pm->op_pmflags & PMf_SCANFIRST) { | |
1365 | if (SvSCREAM(TARG)) { | |
1366 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) | |
1367 | goto nope; | |
1368 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) | |
1369 | goto nope; | |
1370 | } | |
1371 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, | |
1372 | pm->op_pmshort))) | |
1373 | goto nope; | |
1374 | if (s && rx->regback >= 0) { | |
1375 | ++BmUSEFUL(pm->op_pmshort); | |
1376 | s -= rx->regback; | |
1377 | if (s < m) | |
1378 | s = m; | |
1379 | } | |
1380 | else | |
1381 | s = m; | |
1382 | } | |
1383 | else if (!multiline) { | |
1384 | if (*SvPVX(pm->op_pmshort) != *s || | |
1385 | bcmp(SvPVX(pm->op_pmshort), s, pm->op_pmslen) ) { | |
1386 | if (pm->op_pmflags & PMf_FOLD) { | |
1387 | if (ibcmp((U8*)SvPVX(pm->op_pmshort), (U8*)s, pm->op_pmslen) ) | |
1388 | goto nope; | |
1389 | } | |
1390 | else | |
1391 | goto nope; | |
1392 | } | |
1393 | } | |
1394 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { | |
1395 | SvREFCNT_dec(pm->op_pmshort); | |
1396 | pm->op_pmshort = Nullsv; /* opt is being useless */ | |
1397 | } | |
1398 | } | |
1399 | once = !(rpm->op_pmflags & PMf_GLOBAL); | |
1400 | if (rpm->op_pmflags & PMf_CONST) { /* known replacement string? */ | |
1401 | c = SvPV(dstr, clen); | |
1402 | if (clen <= rx->minlen) { | |
1403 | /* can do inplace substitution */ | |
e50aee73 | 1404 | if (pregexec(rx, s, strend, orig, 0, |
a0d0e21e LW |
1405 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1406 | if (force_on_match) { | |
1407 | force_on_match = 0; | |
1408 | s = SvPV_force(TARG, len); | |
1409 | goto force_it; | |
1410 | } | |
1411 | if (rx->subbase) /* oops, no we can't */ | |
1412 | goto long_way; | |
1413 | d = s; | |
1414 | curpm = pm; | |
1415 | SvSCREAM_off(TARG); /* disable possible screamer */ | |
1416 | if (once) { | |
1417 | m = rx->startp[0]; | |
1418 | d = rx->endp[0]; | |
1419 | s = orig; | |
1420 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1421 | if (clen) { | |
1422 | Copy(c, m, clen, char); | |
1423 | m += clen; | |
1424 | } | |
1425 | i = strend - d; | |
1426 | if (i > 0) { | |
1427 | Move(d, m, i, char); | |
1428 | m += i; | |
1429 | } | |
1430 | *m = '\0'; | |
1431 | SvCUR_set(TARG, m - s); | |
1432 | (void)SvPOK_only(TARG); | |
1433 | SvSETMAGIC(TARG); | |
1434 | PUSHs(&sv_yes); | |
4633a7c4 | 1435 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1436 | RETURN; |
1437 | } | |
1438 | /*SUPPRESS 560*/ | |
1439 | else if (i = m - s) { /* faster from front */ | |
1440 | d -= clen; | |
1441 | m = d; | |
1442 | sv_chop(TARG, d-i); | |
1443 | s += i; | |
1444 | while (i--) | |
1445 | *--d = *--s; | |
1446 | if (clen) | |
1447 | Copy(c, m, clen, char); | |
1448 | (void)SvPOK_only(TARG); | |
1449 | SvSETMAGIC(TARG); | |
1450 | PUSHs(&sv_yes); | |
4633a7c4 | 1451 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1452 | RETURN; |
1453 | } | |
1454 | else if (clen) { | |
1455 | d -= clen; | |
1456 | sv_chop(TARG, d); | |
1457 | Copy(c, d, clen, char); | |
1458 | (void)SvPOK_only(TARG); | |
1459 | SvSETMAGIC(TARG); | |
1460 | PUSHs(&sv_yes); | |
4633a7c4 | 1461 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1462 | RETURN; |
1463 | } | |
1464 | else { | |
1465 | sv_chop(TARG, d); | |
1466 | (void)SvPOK_only(TARG); | |
1467 | SvSETMAGIC(TARG); | |
1468 | PUSHs(&sv_yes); | |
4633a7c4 | 1469 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1470 | RETURN; |
1471 | } | |
1472 | /* NOTREACHED */ | |
1473 | } | |
1474 | do { | |
1475 | if (iters++ > maxiters) | |
1476 | DIE("Substitution loop"); | |
1477 | m = rx->startp[0]; | |
1478 | /*SUPPRESS 560*/ | |
1479 | if (i = m - s) { | |
1480 | if (s != d) | |
1481 | Move(s, d, i, char); | |
1482 | d += i; | |
1483 | } | |
1484 | if (clen) { | |
1485 | Copy(c, d, clen, char); | |
1486 | d += clen; | |
1487 | } | |
1488 | s = rx->endp[0]; | |
e50aee73 | 1489 | } while (pregexec(rx, s, strend, orig, s == m, |
a0d0e21e LW |
1490 | Nullsv, TRUE)); /* (don't match same null twice) */ |
1491 | if (s != d) { | |
1492 | i = strend - s; | |
1493 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1494 | Move(s, d, i+1, char); /* include the Null */ | |
1495 | } | |
1496 | (void)SvPOK_only(TARG); | |
1497 | SvSETMAGIC(TARG); | |
1498 | PUSHs(sv_2mortal(newSViv((I32)iters))); | |
4633a7c4 | 1499 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1500 | RETURN; |
1501 | } | |
1502 | PUSHs(&sv_no); | |
4633a7c4 | 1503 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1504 | RETURN; |
1505 | } | |
1506 | } | |
1507 | else | |
1508 | c = Nullch; | |
e50aee73 | 1509 | if (pregexec(rx, s, strend, orig, 0, |
a0d0e21e LW |
1510 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1511 | long_way: | |
1512 | if (force_on_match) { | |
1513 | force_on_match = 0; | |
1514 | s = SvPV_force(TARG, len); | |
1515 | goto force_it; | |
1516 | } | |
1517 | dstr = NEWSV(25, sv_len(TARG)); | |
1518 | sv_setpvn(dstr, m, s-m); | |
1519 | curpm = pm; | |
1520 | if (!c) { | |
1521 | register CONTEXT *cx; | |
1522 | PUSHSUBST(cx); | |
1523 | RETURNOP(cPMOP->op_pmreplroot); | |
1524 | } | |
1525 | do { | |
1526 | if (iters++ > maxiters) | |
1527 | DIE("Substitution loop"); | |
1528 | if (rx->subbase && rx->subbase != orig) { | |
1529 | m = s; | |
1530 | s = orig; | |
1531 | orig = rx->subbase; | |
1532 | s = orig + (m - s); | |
1533 | strend = s + (strend - m); | |
1534 | } | |
1535 | m = rx->startp[0]; | |
1536 | sv_catpvn(dstr, s, m-s); | |
1537 | s = rx->endp[0]; | |
1538 | if (clen) | |
1539 | sv_catpvn(dstr, c, clen); | |
1540 | if (once) | |
1541 | break; | |
e50aee73 | 1542 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, |
a0d0e21e LW |
1543 | safebase)); |
1544 | sv_catpvn(dstr, s, strend - s); | |
748a9306 | 1545 | |
4633a7c4 | 1546 | (void)SvOOK_off(TARG); |
cb0b1708 | 1547 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1548 | SvPVX(TARG) = SvPVX(dstr); |
1549 | SvCUR_set(TARG, SvCUR(dstr)); | |
1550 | SvLEN_set(TARG, SvLEN(dstr)); | |
1551 | SvPVX(dstr) = 0; | |
1552 | sv_free(dstr); | |
1553 | ||
a0d0e21e LW |
1554 | (void)SvPOK_only(TARG); |
1555 | SvSETMAGIC(TARG); | |
1556 | PUSHs(sv_2mortal(newSViv((I32)iters))); | |
4633a7c4 | 1557 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1558 | RETURN; |
1559 | } | |
1560 | PUSHs(&sv_no); | |
4633a7c4 | 1561 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1562 | RETURN; |
1563 | ||
1564 | nope: | |
1565 | ++BmUSEFUL(pm->op_pmshort); | |
1566 | PUSHs(&sv_no); | |
4633a7c4 | 1567 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1568 | RETURN; |
1569 | } | |
1570 | ||
1571 | PP(pp_grepwhile) | |
1572 | { | |
1573 | dSP; | |
1574 | ||
1575 | if (SvTRUEx(POPs)) | |
1576 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; | |
1577 | ++*markstack_ptr; | |
1578 | LEAVE; /* exit inner scope */ | |
1579 | ||
1580 | /* All done yet? */ | |
1581 | if (stack_base + *markstack_ptr > sp) { | |
1582 | I32 items; | |
1583 | ||
1584 | LEAVE; /* exit outer scope */ | |
1585 | (void)POPMARK; /* pop src */ | |
1586 | items = --*markstack_ptr - markstack_ptr[-1]; | |
1587 | (void)POPMARK; /* pop dst */ | |
1588 | SP = stack_base + POPMARK; /* pop original mark */ | |
1589 | if (GIMME != G_ARRAY) { | |
1590 | dTARGET; | |
1591 | XPUSHi(items); | |
1592 | RETURN; | |
1593 | } | |
1594 | SP += items; | |
1595 | RETURN; | |
1596 | } | |
1597 | else { | |
1598 | SV *src; | |
1599 | ||
1600 | ENTER; /* enter inner scope */ | |
1601 | SAVESPTR(curpm); | |
1602 | ||
1603 | src = stack_base[*markstack_ptr]; | |
1604 | SvTEMP_off(src); | |
1605 | GvSV(defgv) = src; | |
1606 | ||
1607 | RETURNOP(cLOGOP->op_other); | |
1608 | } | |
1609 | } | |
1610 | ||
1611 | PP(pp_leavesub) | |
1612 | { | |
1613 | dSP; | |
1614 | SV **mark; | |
1615 | SV **newsp; | |
1616 | PMOP *newpm; | |
1617 | I32 gimme; | |
1618 | register CONTEXT *cx; | |
1619 | ||
1620 | POPBLOCK(cx,newpm); | |
1621 | POPSUB(cx); | |
1622 | ||
1623 | if (gimme == G_SCALAR) { | |
1624 | MARK = newsp + 1; | |
1625 | if (MARK <= SP) | |
1626 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
1627 | *MARK = TOPs; | |
1628 | else | |
1629 | *MARK = sv_mortalcopy(TOPs); | |
1630 | else { | |
1631 | MEXTEND(mark,0); | |
1632 | *MARK = &sv_undef; | |
1633 | } | |
1634 | SP = MARK; | |
1635 | } | |
1636 | else { | |
1637 | for (mark = newsp + 1; mark <= SP; mark++) | |
1638 | if (!(SvFLAGS(*mark) & SVs_TEMP)) | |
1639 | *mark = sv_mortalcopy(*mark); | |
1640 | /* in case LEAVE wipes old return values */ | |
1641 | } | |
1642 | ||
1643 | if (cx->blk_sub.hasargs) { /* You don't exist; go away. */ | |
1644 | AV* av = cx->blk_sub.argarray; | |
1645 | ||
1646 | av_clear(av); | |
1647 | AvREAL_off(av); | |
1648 | } | |
1649 | curpm = newpm; /* Don't pop $1 et al till now */ | |
1650 | ||
1651 | LEAVE; | |
1652 | PUTBACK; | |
1653 | return pop_return(); | |
1654 | } | |
1655 | ||
1656 | PP(pp_entersub) | |
1657 | { | |
1658 | dSP; dPOPss; | |
1659 | GV *gv; | |
1660 | HV *stash; | |
1661 | register CV *cv; | |
1662 | register CONTEXT *cx; | |
5d94fbed | 1663 | I32 gimme; |
67955e0c | 1664 | I32 hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
1665 | |
1666 | if (!sv) | |
1667 | DIE("Not a CODE reference"); | |
1668 | switch (SvTYPE(sv)) { | |
1669 | default: | |
1670 | if (!SvROK(sv)) { | |
748a9306 LW |
1671 | char *sym; |
1672 | ||
a0d0e21e LW |
1673 | if (sv == &sv_yes) /* unfound import, ignore */ |
1674 | RETURN; | |
1675 | if (!SvOK(sv)) | |
1676 | DIE(no_usym, "a subroutine"); | |
748a9306 | 1677 | sym = SvPV(sv,na); |
a0d0e21e | 1678 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 LW |
1679 | DIE(no_symref, sym, "a subroutine"); |
1680 | cv = perl_get_cv(sym, TRUE); | |
a0d0e21e LW |
1681 | break; |
1682 | } | |
1683 | cv = (CV*)SvRV(sv); | |
1684 | if (SvTYPE(cv) == SVt_PVCV) | |
1685 | break; | |
1686 | /* FALL THROUGH */ | |
1687 | case SVt_PVHV: | |
1688 | case SVt_PVAV: | |
1689 | DIE("Not a CODE reference"); | |
1690 | case SVt_PVCV: | |
1691 | cv = (CV*)sv; | |
1692 | break; | |
1693 | case SVt_PVGV: | |
1694 | if (!(cv = GvCV((GV*)sv))) | |
1695 | cv = sv_2cv(sv, &stash, &gv, TRUE); | |
1696 | break; | |
1697 | } | |
1698 | ||
1699 | ENTER; | |
1700 | SAVETMPS; | |
1701 | ||
1702 | retry: | |
1703 | if (!cv) | |
1704 | DIE("Not a CODE reference"); | |
1705 | ||
1706 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
1707 | if (gv = CvGV(cv)) { | |
4633a7c4 | 1708 | SV *tmpstr; |
a0d0e21e | 1709 | GV *ngv; |
4633a7c4 LW |
1710 | if (SvFAKE(cv) && GvCV(gv) != cv) { /* autoloaded stub? */ |
1711 | cv = GvCV(gv); | |
1712 | if (SvTYPE(sv) == SVt_PVGV) { | |
1713 | SvREFCNT_dec(GvCV((GV*)sv)); | |
1714 | GvCV((GV*)sv) = (CV*)SvREFCNT_inc((SV*)cv); | |
1715 | } | |
1716 | goto retry; | |
1717 | } | |
1718 | tmpstr = sv_newmortal(); | |
a0d0e21e LW |
1719 | gv_efullname(tmpstr, gv); |
1720 | ngv = gv_fetchmethod(GvESTASH(gv), "AUTOLOAD"); | |
1721 | if (ngv && ngv != gv && (cv = GvCV(ngv))) { /* One more chance... */ | |
1722 | gv = ngv; | |
1723 | sv_setsv(GvSV(CvGV(cv)), tmpstr); /* Set CV's $AUTOLOAD */ | |
c07a80fd | 1724 | if (tainting) |
1725 | sv_unmagic(GvSV(CvGV(cv)), 't'); | |
a0d0e21e LW |
1726 | goto retry; |
1727 | } | |
1728 | else | |
1729 | DIE("Undefined subroutine &%s called",SvPVX(tmpstr)); | |
1730 | } | |
1731 | DIE("Undefined subroutine called"); | |
1732 | } | |
1733 | ||
4633a7c4 | 1734 | gimme = GIMME; |
67955e0c | 1735 | if ((op->op_private & OPpENTERSUB_DB)) { |
a0d0e21e LW |
1736 | sv = GvSV(DBsub); |
1737 | save_item(sv); | |
67955e0c | 1738 | gv = CvGV(cv); |
1739 | if ( CvFLAGS(cv) & (CVf_ANON | CVf_CLONED) | |
1740 | || strEQ(GvNAME(gv), "END") ) { | |
a5f75d66 | 1741 | /* GV is potentially non-unique */ |
748a9306 | 1742 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 | 1743 | } |
748a9306 | 1744 | else { |
748a9306 LW |
1745 | gv_efullname(sv,gv); |
1746 | } | |
a0d0e21e | 1747 | cv = GvCV(DBsub); |
67955e0c | 1748 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e LW |
1749 | if (!cv) |
1750 | DIE("No DBsub routine"); | |
1751 | } | |
1752 | ||
1753 | if (CvXSUB(cv)) { | |
1754 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 1755 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
1756 | dMARK; |
1757 | register I32 items = SP - MARK; | |
67955e0c | 1758 | /* We dont worry to copy from @_. */ |
a0d0e21e LW |
1759 | while (sp > mark) { |
1760 | sp[1] = sp[0]; | |
1761 | sp--; | |
1762 | } | |
1763 | stack_sp = mark + 1; | |
ecfc5424 AD |
1764 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1765 | items = (*fp3)(CvXSUBANY(cv).any_i32, | |
1766 | MARK - stack_base + 1, | |
1767 | items); | |
a0d0e21e LW |
1768 | stack_sp = stack_base + items; |
1769 | } | |
1770 | else { | |
748a9306 LW |
1771 | I32 markix = TOPMARK; |
1772 | ||
a0d0e21e | 1773 | PUTBACK; |
67955e0c | 1774 | |
1775 | if (!hasargs) { | |
1776 | /* Need to copy @_ to stack. Alternative may be to | |
1777 | * switch stack to @_, and copy return values | |
1778 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
1779 | AV* av = GvAV(defgv); | |
1780 | I32 items = AvFILL(av) + 1; | |
1781 | ||
1782 | if (items) { | |
1783 | /* Mark is at the end of the stack. */ | |
1784 | EXTEND(sp, items); | |
1785 | Copy(AvARRAY(av), sp + 1, items, SV*); | |
1786 | sp += items; | |
1787 | PUTBACK ; | |
1788 | } | |
1789 | } | |
1790 | if (curcopdb) { /* We assume that the first | |
1791 | XSUB in &DB::sub is the | |
1792 | called one. */ | |
1793 | SAVESPTR(curcop); | |
1794 | curcop = curcopdb; | |
1795 | curcopdb = NULL; | |
1796 | } | |
1797 | /* Do we need to open block here? XXXX */ | |
a0d0e21e | 1798 | (void)(*CvXSUB(cv))(cv); |
748a9306 LW |
1799 | |
1800 | /* Enforce some sanity in scalar context. */ | |
5d94fbed | 1801 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 LW |
1802 | if (markix > stack_sp - stack_base) |
1803 | *(stack_base + markix) = &sv_undef; | |
1804 | else | |
1805 | *(stack_base + markix) = *stack_sp; | |
1806 | stack_sp = stack_base + markix; | |
1807 | } | |
a0d0e21e LW |
1808 | } |
1809 | LEAVE; | |
1810 | return NORMAL; | |
1811 | } | |
1812 | else { | |
1813 | dMARK; | |
1814 | register I32 items = SP - MARK; | |
a0d0e21e LW |
1815 | AV* padlist = CvPADLIST(cv); |
1816 | SV** svp = AvARRAY(padlist); | |
1817 | push_return(op->op_next); | |
1818 | PUSHBLOCK(cx, CXt_SUB, MARK); | |
1819 | PUSHSUB(cx); | |
1820 | CvDEPTH(cv)++; | |
1821 | if (CvDEPTH(cv) < 2) | |
1822 | (void)SvREFCNT_inc(cv); | |
1823 | else { /* save temporaries on recursion? */ | |
1824 | if (CvDEPTH(cv) == 100 && dowarn) | |
1825 | warn("Deep recursion on subroutine \"%s\"",GvENAME(CvGV(cv))); | |
1826 | if (CvDEPTH(cv) > AvFILL(padlist)) { | |
1827 | AV *av; | |
1828 | AV *newpad = newAV(); | |
4aa0a1f7 | 1829 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e LW |
1830 | I32 ix = AvFILL((AV*)svp[1]); |
1831 | svp = AvARRAY(svp[0]); | |
748a9306 | 1832 | for ( ;ix > 0; ix--) { |
a0d0e21e | 1833 | if (svp[ix] != &sv_undef) { |
748a9306 LW |
1834 | char *name = SvPVX(svp[ix]); |
1835 | if (SvFLAGS(svp[ix]) & SVf_FAKE) { /* outer lexical? */ | |
1836 | av_store(newpad, ix, | |
4aa0a1f7 | 1837 | SvREFCNT_inc(oldpad[ix]) ); |
748a9306 LW |
1838 | } |
1839 | else { /* our own lexical */ | |
1840 | if (*name == '@') | |
1841 | av_store(newpad, ix, sv = (SV*)newAV()); | |
1842 | else if (*name == '%') | |
1843 | av_store(newpad, ix, sv = (SV*)newHV()); | |
1844 | else | |
1845 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
1846 | SvPADMY_on(sv); | |
1847 | } | |
a0d0e21e LW |
1848 | } |
1849 | else { | |
748a9306 | 1850 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
1851 | SvPADTMP_on(sv); |
1852 | } | |
1853 | } | |
1854 | av = newAV(); /* will be @_ */ | |
1855 | av_extend(av, 0); | |
1856 | av_store(newpad, 0, (SV*)av); | |
1857 | AvFLAGS(av) = AVf_REIFY; | |
1858 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
1859 | AvFILL(padlist) = CvDEPTH(cv); | |
1860 | svp = AvARRAY(padlist); | |
1861 | } | |
1862 | } | |
1863 | SAVESPTR(curpad); | |
1864 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
1865 | if (hasargs) { | |
1866 | AV* av = (AV*)curpad[0]; | |
1867 | SV** ary; | |
1868 | ||
1869 | if (AvREAL(av)) { | |
1870 | av_clear(av); | |
1871 | AvREAL_off(av); | |
1872 | } | |
1873 | cx->blk_sub.savearray = GvAV(defgv); | |
1874 | cx->blk_sub.argarray = av; | |
1875 | GvAV(defgv) = cx->blk_sub.argarray; | |
1876 | ++MARK; | |
1877 | ||
1878 | if (items > AvMAX(av) + 1) { | |
1879 | ary = AvALLOC(av); | |
1880 | if (AvARRAY(av) != ary) { | |
1881 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
1882 | SvPVX(av) = (char*)ary; | |
1883 | } | |
1884 | if (items > AvMAX(av) + 1) { | |
1885 | AvMAX(av) = items - 1; | |
1886 | Renew(ary,items,SV*); | |
1887 | AvALLOC(av) = ary; | |
1888 | SvPVX(av) = (char*)ary; | |
1889 | } | |
1890 | } | |
1891 | Copy(MARK,AvARRAY(av),items,SV*); | |
1892 | AvFILL(av) = items - 1; | |
1893 | ||
1894 | while (items--) { | |
1895 | if (*MARK) | |
1896 | SvTEMP_off(*MARK); | |
1897 | MARK++; | |
1898 | } | |
1899 | } | |
1900 | RETURNOP(CvSTART(cv)); | |
1901 | } | |
1902 | } | |
1903 | ||
1904 | PP(pp_aelem) | |
1905 | { | |
1906 | dSP; | |
1907 | SV** svp; | |
748a9306 | 1908 | I32 elem = POPi; |
a0d0e21e LW |
1909 | AV *av = (AV*)POPs; |
1910 | I32 lval = op->op_flags & OPf_MOD; | |
1911 | ||
748a9306 LW |
1912 | if (elem > 0) |
1913 | elem -= curcop->cop_arybase; | |
a0d0e21e LW |
1914 | if (SvTYPE(av) != SVt_PVAV) |
1915 | RETPUSHUNDEF; | |
1916 | svp = av_fetch(av, elem, lval); | |
1917 | if (lval) { | |
1918 | if (!svp || *svp == &sv_undef) | |
1919 | DIE(no_aelem, elem); | |
1920 | if (op->op_private & OPpLVAL_INTRO) | |
1921 | save_svref(svp); | |
02a9e968 CS |
1922 | else if (op->op_private & (OPpDEREF_HV|OPpDEREF_AV)) |
1923 | provide_ref(op, *svp); | |
a0d0e21e LW |
1924 | } |
1925 | PUSHs(svp ? *svp : &sv_undef); | |
1926 | RETURN; | |
1927 | } | |
1928 | ||
02a9e968 CS |
1929 | void |
1930 | provide_ref(op, sv) | |
1931 | OP* op; | |
1932 | SV* sv; | |
1933 | { | |
1934 | if (SvGMAGICAL(sv)) | |
1935 | mg_get(sv); | |
1936 | if (!SvOK(sv)) { | |
1937 | if (SvREADONLY(sv)) | |
1938 | croak(no_modify); | |
1939 | (void)SvUPGRADE(sv, SVt_RV); | |
1940 | SvRV(sv) = (op->op_private & OPpDEREF_HV ? | |
1941 | (SV*)newHV() : (SV*)newAV()); | |
1942 | SvROK_on(sv); | |
1943 | SvSETMAGIC(sv); | |
1944 | } | |
1945 | } | |
1946 | ||
a0d0e21e LW |
1947 | PP(pp_method) |
1948 | { | |
1949 | dSP; | |
1950 | SV* sv; | |
1951 | SV* ob; | |
1952 | GV* gv; | |
1953 | SV* nm; | |
1954 | ||
1955 | nm = TOPs; | |
1956 | sv = *(stack_base + TOPMARK + 1); | |
1957 | ||
1958 | gv = 0; | |
16d20bd9 AD |
1959 | if (SvGMAGICAL(sv)) |
1960 | mg_get(sv); | |
a0d0e21e | 1961 | if (SvROK(sv)) |
16d20bd9 | 1962 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
1963 | else { |
1964 | GV* iogv; | |
1965 | char* packname = 0; | |
67955e0c | 1966 | STRLEN packlen; |
a0d0e21e LW |
1967 | |
1968 | if (!SvOK(sv) || | |
67955e0c | 1969 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
1970 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
1971 | !(ob=(SV*)GvIO(iogv))) | |
1972 | { | |
1973 | char *name = SvPV(nm, na); | |
1974 | HV *stash; | |
1975 | if (!packname || !isALPHA(*packname)) | |
1976 | DIE("Can't call method \"%s\" without a package or object reference", name); | |
67955e0c | 1977 | if (!(stash = gv_stashpvn(packname, packlen, FALSE))) { |
1978 | if (gv_stashpvn("UNIVERSAL", 9, FALSE)) | |
1979 | stash = gv_stashpvn(packname, packlen, TRUE); | |
a0d0e21e LW |
1980 | else |
1981 | DIE("Can't call method \"%s\" in empty package \"%s\"", | |
1982 | name, packname); | |
1983 | } | |
1984 | gv = gv_fetchmethod(stash,name); | |
1985 | if (!gv) | |
1986 | DIE("Can't locate object method \"%s\" via package \"%s\"", | |
1987 | name, packname); | |
67955e0c | 1988 | SETs((SV*)gv); |
a0d0e21e LW |
1989 | RETURN; |
1990 | } | |
67955e0c | 1991 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
1992 | } |
1993 | ||
1994 | if (!ob || !SvOBJECT(ob)) { | |
1995 | char *name = SvPV(nm, na); | |
1996 | DIE("Can't call method \"%s\" on unblessed reference", name); | |
1997 | } | |
1998 | ||
1999 | if (!gv) { /* nothing cached */ | |
2000 | char *name = SvPV(nm, na); | |
2001 | gv = gv_fetchmethod(SvSTASH(ob),name); | |
2002 | if (!gv) | |
2003 | DIE("Can't locate object method \"%s\" via package \"%s\"", | |
2004 | name, HvNAME(SvSTASH(ob))); | |
2005 | } | |
2006 | ||
67955e0c | 2007 | SETs((SV*)gv); |
a0d0e21e LW |
2008 | RETURN; |
2009 | } | |
2010 |