Commit | Line | Data |
a0d0e21e |
1 | /* pp_hot.c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
8 | */ |
9 | |
10 | /* |
11 | * Then he heard Merry change the note, and up went the Horn-cry of Buckland, |
12 | * shaking the air. |
13 | * |
14 | * Awake! Awake! Fear, Fire, Foes! Awake! |
15 | * Fire, Foes! Awake! |
16 | */ |
17 | |
18 | #include "EXTERN.h" |
19 | #include "perl.h" |
20 | |
21 | /* Hot code. */ |
22 | |
23 | PP(pp_const) |
24 | { |
25 | dSP; |
26 | XPUSHs(cSVOP->op_sv); |
27 | RETURN; |
28 | } |
29 | |
30 | PP(pp_nextstate) |
31 | { |
32 | curcop = (COP*)op; |
33 | TAINT_NOT; /* Each statement is presumed innocent */ |
34 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
35 | FREETMPS; |
36 | return NORMAL; |
37 | } |
38 | |
39 | PP(pp_gvsv) |
40 | { |
41 | dSP; |
42 | EXTEND(sp,1); |
43 | if (op->op_private & OPpLVAL_INTRO) |
44 | PUSHs(save_scalar(cGVOP->op_gv)); |
45 | else |
46 | PUSHs(GvSV(cGVOP->op_gv)); |
47 | RETURN; |
48 | } |
49 | |
50 | PP(pp_null) |
51 | { |
52 | return NORMAL; |
53 | } |
54 | |
55 | PP(pp_pushmark) |
56 | { |
57 | PUSHMARK(stack_sp); |
58 | return NORMAL; |
59 | } |
60 | |
61 | PP(pp_stringify) |
62 | { |
63 | dSP; dTARGET; |
64 | STRLEN len; |
65 | char *s; |
66 | s = SvPV(TOPs,len); |
67 | sv_setpvn(TARG,s,len); |
68 | SETTARG; |
69 | RETURN; |
70 | } |
71 | |
72 | PP(pp_gv) |
73 | { |
74 | dSP; |
75 | XPUSHs((SV*)cGVOP->op_gv); |
76 | RETURN; |
77 | } |
78 | |
c07a80fd |
79 | PP(pp_gelem) |
80 | { |
81 | GV *gv; |
82 | SV *sv; |
83 | SV *ref; |
84 | char *elem; |
85 | dSP; |
86 | |
87 | sv = POPs; |
88 | elem = SvPV(sv, na); |
89 | gv = (GV*)POPs; |
90 | ref = Nullsv; |
91 | sv = Nullsv; |
92 | switch (elem ? *elem : '\0') |
93 | { |
94 | case 'A': |
95 | if (strEQ(elem, "ARRAY")) |
96 | ref = (SV*)GvAV(gv); |
97 | break; |
98 | case 'C': |
99 | if (strEQ(elem, "CODE")) |
8ebc5c01 |
100 | ref = (SV*)GvCVu(gv); |
c07a80fd |
101 | break; |
102 | case 'F': |
36477c24 |
103 | if (strEQ(elem, "FILEHANDLE")) /* XXX deprecate in 5.005 */ |
c07a80fd |
104 | ref = (SV*)GvIOp(gv); |
105 | break; |
106 | case 'G': |
107 | if (strEQ(elem, "GLOB")) |
108 | ref = (SV*)gv; |
109 | break; |
110 | case 'H': |
111 | if (strEQ(elem, "HASH")) |
112 | ref = (SV*)GvHV(gv); |
113 | break; |
36477c24 |
114 | case 'I': |
115 | if (strEQ(elem, "IO")) |
116 | ref = (SV*)GvIOp(gv); |
117 | break; |
c07a80fd |
118 | case 'N': |
119 | if (strEQ(elem, "NAME")) |
120 | sv = newSVpv(GvNAME(gv), GvNAMELEN(gv)); |
121 | break; |
122 | case 'P': |
123 | if (strEQ(elem, "PACKAGE")) |
124 | sv = newSVpv(HvNAME(GvSTASH(gv)), 0); |
125 | break; |
126 | case 'S': |
127 | if (strEQ(elem, "SCALAR")) |
128 | ref = GvSV(gv); |
129 | break; |
130 | } |
131 | if (ref) |
132 | sv = newRV(ref); |
133 | if (sv) |
134 | sv_2mortal(sv); |
135 | else |
136 | sv = &sv_undef; |
137 | XPUSHs(sv); |
138 | RETURN; |
139 | } |
140 | |
a0d0e21e |
141 | PP(pp_and) |
142 | { |
143 | dSP; |
144 | if (!SvTRUE(TOPs)) |
145 | RETURN; |
146 | else { |
147 | --SP; |
148 | RETURNOP(cLOGOP->op_other); |
149 | } |
150 | } |
151 | |
152 | PP(pp_sassign) |
153 | { |
154 | dSP; dPOPTOPssrl; |
748a9306 |
155 | MAGIC *mg; |
156 | |
a0d0e21e |
157 | if (op->op_private & OPpASSIGN_BACKWARDS) { |
158 | SV *temp; |
159 | temp = left; left = right; right = temp; |
160 | } |
bbce6d69 |
161 | if (tainting && tainted && !SvTAINTED(left)) |
a0d0e21e |
162 | TAINT_NOT; |
a0d0e21e |
163 | SvSetSV(right, left); |
164 | SvSETMAGIC(right); |
165 | SETs(right); |
166 | RETURN; |
167 | } |
168 | |
169 | PP(pp_cond_expr) |
170 | { |
171 | dSP; |
172 | if (SvTRUEx(POPs)) |
173 | RETURNOP(cCONDOP->op_true); |
174 | else |
175 | RETURNOP(cCONDOP->op_false); |
176 | } |
177 | |
178 | PP(pp_unstack) |
179 | { |
180 | I32 oldsave; |
181 | TAINT_NOT; /* Each statement is presumed innocent */ |
182 | stack_sp = stack_base + cxstack[cxstack_ix].blk_oldsp; |
183 | FREETMPS; |
184 | oldsave = scopestack[scopestack_ix - 1]; |
185 | LEAVE_SCOPE(oldsave); |
186 | return NORMAL; |
187 | } |
188 | |
a0d0e21e |
189 | PP(pp_concat) |
190 | { |
748a9306 |
191 | dSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
192 | { |
193 | dPOPTOPssrl; |
a0d0e21e |
194 | STRLEN len; |
195 | char *s; |
196 | if (TARG != left) { |
197 | s = SvPV(left,len); |
198 | sv_setpvn(TARG,s,len); |
199 | } |
c07a80fd |
200 | else if (SvGMAGICAL(TARG)) |
201 | mg_get(TARG); |
7a4c00b4 |
202 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 |
203 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 |
204 | s = SvPV_force(TARG, len); |
4633a7c4 |
205 | } |
a0d0e21e |
206 | s = SvPV(right,len); |
207 | sv_catpvn(TARG,s,len); |
208 | SETTARG; |
209 | RETURN; |
748a9306 |
210 | } |
a0d0e21e |
211 | } |
212 | |
213 | PP(pp_padsv) |
214 | { |
215 | dSP; dTARGET; |
216 | XPUSHs(TARG); |
4633a7c4 |
217 | if (op->op_flags & OPf_MOD) { |
218 | if (op->op_private & OPpLVAL_INTRO) |
219 | SAVECLEARSV(curpad[op->op_targ]); |
5f05dabc |
220 | else if (op->op_private & OPpDEREF) |
02a9e968 |
221 | provide_ref(op, curpad[op->op_targ]); |
4633a7c4 |
222 | } |
a0d0e21e |
223 | RETURN; |
224 | } |
225 | |
226 | PP(pp_readline) |
227 | { |
228 | last_in_gv = (GV*)(*stack_sp--); |
229 | return do_readline(); |
230 | } |
231 | |
232 | PP(pp_eq) |
233 | { |
234 | dSP; tryAMAGICbinSET(eq,0); |
235 | { |
236 | dPOPnv; |
237 | SETs((TOPn == value) ? &sv_yes : &sv_no); |
238 | RETURN; |
239 | } |
240 | } |
241 | |
242 | PP(pp_preinc) |
243 | { |
244 | dSP; |
44a8e56a |
245 | if (SvREADONLY(TOPs)) |
246 | croak(no_modify); |
55497cff |
247 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
248 | SvIVX(TOPs) != IV_MAX) |
249 | { |
250 | ++SvIVX(TOPs); |
251 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 |
252 | } |
253 | else |
254 | sv_inc(TOPs); |
a0d0e21e |
255 | SvSETMAGIC(TOPs); |
256 | return NORMAL; |
257 | } |
258 | |
259 | PP(pp_or) |
260 | { |
261 | dSP; |
262 | if (SvTRUE(TOPs)) |
263 | RETURN; |
264 | else { |
265 | --SP; |
266 | RETURNOP(cLOGOP->op_other); |
267 | } |
268 | } |
269 | |
270 | PP(pp_add) |
271 | { |
272 | dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
273 | { |
7a4c00b4 |
274 | dPOPTOPnnrl_ul; |
a0d0e21e |
275 | SETn( left + right ); |
276 | RETURN; |
277 | } |
278 | } |
279 | |
280 | PP(pp_aelemfast) |
281 | { |
282 | dSP; |
283 | AV *av = GvAV((GV*)cSVOP->op_sv); |
284 | SV** svp = av_fetch(av, op->op_private, op->op_flags & OPf_MOD); |
285 | PUSHs(svp ? *svp : &sv_undef); |
286 | RETURN; |
287 | } |
288 | |
289 | PP(pp_join) |
290 | { |
291 | dSP; dMARK; dTARGET; |
292 | MARK++; |
293 | do_join(TARG, *MARK, MARK, SP); |
294 | SP = MARK; |
295 | SETs(TARG); |
296 | RETURN; |
297 | } |
298 | |
299 | PP(pp_pushre) |
300 | { |
301 | dSP; |
44a8e56a |
302 | #ifdef DEBUGGING |
303 | /* |
304 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs |
305 | * will be enough to hold an OP*. |
306 | */ |
307 | SV* sv = sv_newmortal(); |
308 | sv_upgrade(sv, SVt_PVLV); |
309 | LvTYPE(sv) = '/'; |
310 | Copy(&op, &LvTARGOFF(sv), 1, OP*); |
311 | XPUSHs(sv); |
312 | #else |
a0d0e21e |
313 | XPUSHs((SV*)op); |
44a8e56a |
314 | #endif |
a0d0e21e |
315 | RETURN; |
316 | } |
317 | |
318 | /* Oversized hot code. */ |
319 | |
320 | PP(pp_print) |
321 | { |
322 | dSP; dMARK; dORIGMARK; |
323 | GV *gv; |
324 | IO *io; |
760ac839 |
325 | register PerlIO *fp; |
236988e4 |
326 | MAGIC *mg; |
a0d0e21e |
327 | |
328 | if (op->op_flags & OPf_STACKED) |
329 | gv = (GV*)*++MARK; |
330 | else |
331 | gv = defoutgv; |
236988e4 |
332 | if (SvMAGICAL(gv) && (mg = mg_find((SV*)gv, 'q'))) { |
333 | SV *sv; |
334 | |
335 | PUSHMARK(MARK-1); |
336 | *MARK = mg->mg_obj; |
337 | ENTER; |
338 | perl_call_method("PRINT", G_SCALAR); |
339 | LEAVE; |
340 | SPAGAIN; |
341 | sv = POPs; |
342 | SP = ORIGMARK; |
343 | PUSHs(sv); |
344 | RETURN; |
345 | } |
a0d0e21e |
346 | if (!(io = GvIO(gv))) { |
748a9306 |
347 | if (dowarn) { |
348 | SV* sv = sv_newmortal(); |
4f732624 |
349 | gv_fullname3(sv, gv, Nullch); |
748a9306 |
350 | warn("Filehandle %s never opened", SvPV(sv,na)); |
351 | } |
352 | |
353 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e |
354 | goto just_say_no; |
355 | } |
356 | else if (!(fp = IoOFP(io))) { |
357 | if (dowarn) { |
748a9306 |
358 | SV* sv = sv_newmortal(); |
4f732624 |
359 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e |
360 | if (IoIFP(io)) |
748a9306 |
361 | warn("Filehandle %s opened only for input", SvPV(sv,na)); |
a0d0e21e |
362 | else |
748a9306 |
363 | warn("print on closed filehandle %s", SvPV(sv,na)); |
a0d0e21e |
364 | } |
748a9306 |
365 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e |
366 | goto just_say_no; |
367 | } |
368 | else { |
369 | MARK++; |
370 | if (ofslen) { |
371 | while (MARK <= SP) { |
372 | if (!do_print(*MARK, fp)) |
373 | break; |
374 | MARK++; |
375 | if (MARK <= SP) { |
760ac839 |
376 | if (PerlIO_write(fp, ofs, ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e |
377 | MARK--; |
378 | break; |
379 | } |
380 | } |
381 | } |
382 | } |
383 | else { |
384 | while (MARK <= SP) { |
385 | if (!do_print(*MARK, fp)) |
386 | break; |
387 | MARK++; |
388 | } |
389 | } |
390 | if (MARK <= SP) |
391 | goto just_say_no; |
392 | else { |
393 | if (orslen) |
760ac839 |
394 | if (PerlIO_write(fp, ors, orslen) == 0 || PerlIO_error(fp)) |
a0d0e21e |
395 | goto just_say_no; |
396 | |
397 | if (IoFLAGS(io) & IOf_FLUSH) |
760ac839 |
398 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e |
399 | goto just_say_no; |
400 | } |
401 | } |
402 | SP = ORIGMARK; |
403 | PUSHs(&sv_yes); |
404 | RETURN; |
405 | |
406 | just_say_no: |
407 | SP = ORIGMARK; |
408 | PUSHs(&sv_undef); |
409 | RETURN; |
410 | } |
411 | |
412 | PP(pp_rv2av) |
413 | { |
414 | dSP; dPOPss; |
a0d0e21e |
415 | AV *av; |
416 | |
417 | if (SvROK(sv)) { |
418 | wasref: |
419 | av = (AV*)SvRV(sv); |
420 | if (SvTYPE(av) != SVt_PVAV) |
421 | DIE("Not an ARRAY reference"); |
422 | if (op->op_private & OPpLVAL_INTRO) |
423 | av = (AV*)save_svref((SV**)sv); |
424 | if (op->op_flags & OPf_REF) { |
425 | PUSHs((SV*)av); |
426 | RETURN; |
427 | } |
428 | } |
429 | else { |
430 | if (SvTYPE(sv) == SVt_PVAV) { |
431 | av = (AV*)sv; |
432 | if (op->op_flags & OPf_REF) { |
433 | PUSHs((SV*)av); |
434 | RETURN; |
435 | } |
436 | } |
437 | else { |
67955e0c |
438 | GV *gv; |
439 | |
a0d0e21e |
440 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
441 | char *sym; |
442 | |
a0d0e21e |
443 | if (SvGMAGICAL(sv)) { |
444 | mg_get(sv); |
445 | if (SvROK(sv)) |
446 | goto wasref; |
447 | } |
448 | if (!SvOK(sv)) { |
449 | if (op->op_flags & OPf_REF || |
450 | op->op_private & HINT_STRICT_REFS) |
451 | DIE(no_usym, "an ARRAY"); |
d83e6520 |
452 | if (dowarn) |
453 | warn(warn_uninit); |
4633a7c4 |
454 | if (GIMME == G_ARRAY) |
455 | RETURN; |
a0d0e21e |
456 | RETPUSHUNDEF; |
457 | } |
748a9306 |
458 | sym = SvPV(sv,na); |
a0d0e21e |
459 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
460 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c |
461 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
462 | } else { |
463 | gv = (GV*)sv; |
a0d0e21e |
464 | } |
67955e0c |
465 | av = GvAVn(gv); |
a0d0e21e |
466 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
467 | av = save_ary(gv); |
a0d0e21e |
468 | if (op->op_flags & OPf_REF) { |
469 | PUSHs((SV*)av); |
470 | RETURN; |
471 | } |
472 | } |
473 | } |
474 | |
475 | if (GIMME == G_ARRAY) { |
476 | I32 maxarg = AvFILL(av) + 1; |
477 | EXTEND(SP, maxarg); |
478 | Copy(AvARRAY(av), SP+1, maxarg, SV*); |
479 | SP += maxarg; |
480 | } |
481 | else { |
482 | dTARGET; |
483 | I32 maxarg = AvFILL(av) + 1; |
484 | PUSHi(maxarg); |
485 | } |
486 | RETURN; |
487 | } |
488 | |
489 | PP(pp_rv2hv) |
490 | { |
a0d0e21e |
491 | dSP; dTOPss; |
a0d0e21e |
492 | HV *hv; |
493 | |
494 | if (SvROK(sv)) { |
495 | wasref: |
496 | hv = (HV*)SvRV(sv); |
497 | if (SvTYPE(hv) != SVt_PVHV) |
498 | DIE("Not a HASH reference"); |
499 | if (op->op_private & OPpLVAL_INTRO) |
500 | hv = (HV*)save_svref((SV**)sv); |
501 | if (op->op_flags & OPf_REF) { |
502 | SETs((SV*)hv); |
503 | RETURN; |
504 | } |
505 | } |
506 | else { |
507 | if (SvTYPE(sv) == SVt_PVHV) { |
508 | hv = (HV*)sv; |
509 | if (op->op_flags & OPf_REF) { |
510 | SETs((SV*)hv); |
511 | RETURN; |
512 | } |
513 | } |
514 | else { |
67955e0c |
515 | GV *gv; |
516 | |
a0d0e21e |
517 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 |
518 | char *sym; |
519 | |
a0d0e21e |
520 | if (SvGMAGICAL(sv)) { |
521 | mg_get(sv); |
522 | if (SvROK(sv)) |
523 | goto wasref; |
524 | } |
525 | if (!SvOK(sv)) { |
526 | if (op->op_flags & OPf_REF || |
527 | op->op_private & HINT_STRICT_REFS) |
528 | DIE(no_usym, "a HASH"); |
d83e6520 |
529 | if (dowarn) |
530 | warn(warn_uninit); |
4633a7c4 |
531 | if (GIMME == G_ARRAY) { |
532 | SP--; |
533 | RETURN; |
534 | } |
a0d0e21e |
535 | RETSETUNDEF; |
536 | } |
748a9306 |
537 | sym = SvPV(sv,na); |
a0d0e21e |
538 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
539 | DIE(no_symref, sym, "a HASH"); |
67955e0c |
540 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
541 | } else { |
542 | gv = (GV*)sv; |
a0d0e21e |
543 | } |
67955e0c |
544 | hv = GvHVn(gv); |
a0d0e21e |
545 | if (op->op_private & OPpLVAL_INTRO) |
67955e0c |
546 | hv = save_hash(gv); |
a0d0e21e |
547 | if (op->op_flags & OPf_REF) { |
548 | SETs((SV*)hv); |
549 | RETURN; |
550 | } |
551 | } |
552 | } |
553 | |
554 | if (GIMME == G_ARRAY) { /* array wanted */ |
555 | *stack_sp = (SV*)hv; |
556 | return do_kv(ARGS); |
557 | } |
558 | else { |
559 | dTARGET; |
560 | if (HvFILL(hv)) { |
9607fc9c |
561 | sprintf(buf, "%ld/%ld", (long)HvFILL(hv), (long)HvMAX(hv)+1); |
a0d0e21e |
562 | sv_setpv(TARG, buf); |
563 | } |
564 | else |
565 | sv_setiv(TARG, 0); |
566 | SETTARG; |
567 | RETURN; |
568 | } |
569 | } |
570 | |
571 | PP(pp_aassign) |
572 | { |
573 | dSP; |
574 | SV **lastlelem = stack_sp; |
575 | SV **lastrelem = stack_base + POPMARK; |
576 | SV **firstrelem = stack_base + POPMARK + 1; |
577 | SV **firstlelem = lastrelem + 1; |
578 | |
579 | register SV **relem; |
580 | register SV **lelem; |
581 | |
582 | register SV *sv; |
583 | register AV *ary; |
584 | |
585 | HV *hash; |
586 | I32 i; |
587 | int magic; |
588 | |
589 | delaymagic = DM_DELAY; /* catch simultaneous items */ |
590 | |
591 | /* If there's a common identifier on both sides we have to take |
592 | * special care that assigning the identifier on the left doesn't |
593 | * clobber a value on the right that's used later in the list. |
594 | */ |
595 | if (op->op_private & OPpASSIGN_COMMON) { |
596 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
597 | /*SUPPRESS 560*/ |
598 | if (sv = *relem) |
599 | *relem = sv_mortalcopy(sv); |
600 | } |
601 | } |
602 | |
603 | relem = firstrelem; |
604 | lelem = firstlelem; |
605 | ary = Null(AV*); |
606 | hash = Null(HV*); |
607 | while (lelem <= lastlelem) { |
bbce6d69 |
608 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e |
609 | sv = *lelem++; |
610 | switch (SvTYPE(sv)) { |
611 | case SVt_PVAV: |
612 | ary = (AV*)sv; |
748a9306 |
613 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e |
614 | |
615 | av_clear(ary); |
7e42bd57 |
616 | av_extend(ary, lastrelem - relem); |
a0d0e21e |
617 | i = 0; |
618 | while (relem <= lastrelem) { /* gobble up all the rest */ |
619 | sv = NEWSV(28,0); |
620 | assert(*relem); |
621 | sv_setsv(sv,*relem); |
622 | *(relem++) = sv; |
623 | (void)av_store(ary,i++,sv); |
624 | if (magic) |
625 | mg_set(sv); |
bbce6d69 |
626 | TAINT_NOT; |
a0d0e21e |
627 | } |
628 | break; |
629 | case SVt_PVHV: { |
a0d0e21e |
630 | SV *tmpstr; |
631 | |
632 | hash = (HV*)sv; |
748a9306 |
633 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e |
634 | hv_clear(hash); |
635 | |
636 | while (relem < lastrelem) { /* gobble up all the rest */ |
637 | STRLEN len; |
4633a7c4 |
638 | if (*relem) |
a0d0e21e |
639 | sv = *(relem++); |
4633a7c4 |
640 | else |
a0d0e21e |
641 | sv = &sv_no, relem++; |
a0d0e21e |
642 | tmpstr = NEWSV(29,0); |
643 | if (*relem) |
644 | sv_setsv(tmpstr,*relem); /* value */ |
645 | *(relem++) = tmpstr; |
760ac839 |
646 | (void)hv_store_ent(hash,sv,tmpstr,0); |
a0d0e21e |
647 | if (magic) |
648 | mg_set(tmpstr); |
bbce6d69 |
649 | TAINT_NOT; |
8e07c86e |
650 | } |
760ac839 |
651 | if (relem == lastrelem) |
652 | warn("Odd number of elements in hash list"); |
a0d0e21e |
653 | } |
654 | break; |
655 | default: |
656 | if (SvTHINKFIRST(sv)) { |
657 | if (SvREADONLY(sv) && curcop != &compiling) { |
658 | if (sv != &sv_undef && sv != &sv_yes && sv != &sv_no) |
659 | DIE(no_modify); |
660 | if (relem <= lastrelem) |
661 | relem++; |
662 | break; |
663 | } |
664 | if (SvROK(sv)) |
665 | sv_unref(sv); |
666 | } |
667 | if (relem <= lastrelem) { |
668 | sv_setsv(sv, *relem); |
669 | *(relem++) = sv; |
670 | } |
671 | else |
672 | sv_setsv(sv, &sv_undef); |
673 | SvSETMAGIC(sv); |
674 | break; |
675 | } |
676 | } |
677 | if (delaymagic & ~DM_DELAY) { |
678 | if (delaymagic & DM_UID) { |
679 | #ifdef HAS_SETRESUID |
680 | (void)setresuid(uid,euid,(Uid_t)-1); |
56febc5e |
681 | #else |
682 | # ifdef HAS_SETREUID |
a0d0e21e |
683 | (void)setreuid(uid,euid); |
56febc5e |
684 | # else |
685 | # ifdef HAS_SETRUID |
a0d0e21e |
686 | if ((delaymagic & DM_UID) == DM_RUID) { |
687 | (void)setruid(uid); |
748a9306 |
688 | delaymagic &= ~DM_RUID; |
a0d0e21e |
689 | } |
56febc5e |
690 | # endif /* HAS_SETRUID */ |
691 | # ifdef HAS_SETEUID |
a0d0e21e |
692 | if ((delaymagic & DM_UID) == DM_EUID) { |
693 | (void)seteuid(uid); |
748a9306 |
694 | delaymagic &= ~DM_EUID; |
a0d0e21e |
695 | } |
56febc5e |
696 | # endif /* HAS_SETEUID */ |
a0d0e21e |
697 | if (delaymagic & DM_UID) { |
698 | if (uid != euid) |
699 | DIE("No setreuid available"); |
700 | (void)setuid(uid); |
701 | } |
56febc5e |
702 | # endif /* HAS_SETREUID */ |
703 | #endif /* HAS_SETRESUID */ |
a0d0e21e |
704 | uid = (int)getuid(); |
705 | euid = (int)geteuid(); |
706 | } |
707 | if (delaymagic & DM_GID) { |
708 | #ifdef HAS_SETRESGID |
709 | (void)setresgid(gid,egid,(Gid_t)-1); |
56febc5e |
710 | #else |
711 | # ifdef HAS_SETREGID |
a0d0e21e |
712 | (void)setregid(gid,egid); |
56febc5e |
713 | # else |
714 | # ifdef HAS_SETRGID |
a0d0e21e |
715 | if ((delaymagic & DM_GID) == DM_RGID) { |
716 | (void)setrgid(gid); |
748a9306 |
717 | delaymagic &= ~DM_RGID; |
a0d0e21e |
718 | } |
56febc5e |
719 | # endif /* HAS_SETRGID */ |
720 | # ifdef HAS_SETEGID |
a0d0e21e |
721 | if ((delaymagic & DM_GID) == DM_EGID) { |
722 | (void)setegid(gid); |
748a9306 |
723 | delaymagic &= ~DM_EGID; |
a0d0e21e |
724 | } |
56febc5e |
725 | # endif /* HAS_SETEGID */ |
a0d0e21e |
726 | if (delaymagic & DM_GID) { |
727 | if (gid != egid) |
728 | DIE("No setregid available"); |
729 | (void)setgid(gid); |
730 | } |
56febc5e |
731 | # endif /* HAS_SETREGID */ |
732 | #endif /* HAS_SETRESGID */ |
a0d0e21e |
733 | gid = (int)getgid(); |
734 | egid = (int)getegid(); |
735 | } |
4633a7c4 |
736 | tainting |= (uid && (euid != uid || egid != gid)); |
a0d0e21e |
737 | } |
738 | delaymagic = 0; |
739 | if (GIMME == G_ARRAY) { |
740 | if (ary || hash) |
741 | SP = lastrelem; |
742 | else |
743 | SP = firstrelem + (lastlelem - firstlelem); |
0c8c7a05 |
744 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc |
745 | while (relem <= SP) |
0c8c7a05 |
746 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &sv_undef; |
a0d0e21e |
747 | RETURN; |
748 | } |
749 | else { |
4633a7c4 |
750 | dTARGET; |
a0d0e21e |
751 | SP = firstrelem; |
a0d0e21e |
752 | |
4633a7c4 |
753 | SETi(lastrelem - firstrelem + 1); |
754 | RETURN; |
a0d0e21e |
755 | } |
756 | } |
757 | |
758 | PP(pp_match) |
759 | { |
760 | dSP; dTARG; |
761 | register PMOP *pm = cPMOP; |
762 | register char *t; |
763 | register char *s; |
764 | char *strend; |
765 | I32 global; |
766 | I32 safebase; |
767 | char *truebase; |
768 | register REGEXP *rx = pm->op_pmregexp; |
769 | I32 gimme = GIMME; |
770 | STRLEN len; |
748a9306 |
771 | I32 minmatch = 0; |
4633a7c4 |
772 | I32 oldsave = savestack_ix; |
f86702cc |
773 | I32 update_minmatch = 1; |
a0d0e21e |
774 | |
775 | if (op->op_flags & OPf_STACKED) |
776 | TARG = POPs; |
777 | else { |
778 | TARG = GvSV(defgv); |
779 | EXTEND(SP,1); |
780 | } |
781 | s = SvPV(TARG, len); |
782 | strend = s + len; |
783 | if (!s) |
784 | DIE("panic: do_match"); |
9212bbba |
785 | TAINT_NOT; |
a0d0e21e |
786 | |
787 | if (pm->op_pmflags & PMf_USED) { |
788 | if (gimme == G_ARRAY) |
789 | RETURN; |
790 | RETPUSHNO; |
791 | } |
792 | |
793 | if (!rx->prelen && curpm) { |
794 | pm = curpm; |
795 | rx = pm->op_pmregexp; |
796 | } |
797 | truebase = t = s; |
798 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
799 | rx->startp[0] = 0; |
800 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
801 | MAGIC* mg = mg_find(TARG, 'g'); |
748a9306 |
802 | if (mg && mg->mg_len >= 0) { |
a0d0e21e |
803 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 |
804 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc |
805 | update_minmatch = 0; |
748a9306 |
806 | } |
a0d0e21e |
807 | } |
808 | } |
748a9306 |
809 | if (!rx->nparens && !global) |
810 | gimme = G_SCALAR; /* accidental array context? */ |
5f05dabc |
811 | safebase = (((gimme == G_ARRAY) || global) && !sawampersand); |
a0d0e21e |
812 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
813 | SAVEINT(multiline); |
814 | multiline = pm->op_pmflags & PMf_MULTILINE; |
815 | } |
816 | |
817 | play_it_again: |
818 | if (global && rx->startp[0]) { |
819 | t = s = rx->endp[0]; |
5f05dabc |
820 | if (s >= strend) |
a0d0e21e |
821 | goto nope; |
f86702cc |
822 | if (update_minmatch++) |
823 | minmatch = (s == rx->startp[0]); |
a0d0e21e |
824 | } |
825 | if (pm->op_pmshort) { |
826 | if (pm->op_pmflags & PMf_SCANFIRST) { |
827 | if (SvSCREAM(TARG)) { |
828 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
829 | goto nope; |
830 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
831 | goto nope; |
832 | else if (pm->op_pmflags & PMf_ALL) |
833 | goto yup; |
834 | } |
835 | else if (!(s = fbm_instr((unsigned char*)s, |
836 | (unsigned char*)strend, pm->op_pmshort))) |
837 | goto nope; |
838 | else if (pm->op_pmflags & PMf_ALL) |
839 | goto yup; |
840 | if (s && rx->regback >= 0) { |
841 | ++BmUSEFUL(pm->op_pmshort); |
842 | s -= rx->regback; |
843 | if (s < t) |
844 | s = t; |
845 | } |
846 | else |
847 | s = t; |
848 | } |
849 | else if (!multiline) { |
bbce6d69 |
850 | if (*SvPVX(pm->op_pmshort) != *s |
851 | || (pm->op_pmslen > 1 |
36477c24 |
852 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
853 | goto nope; |
a0d0e21e |
854 | } |
855 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
856 | SvREFCNT_dec(pm->op_pmshort); |
857 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
858 | } |
859 | } |
e50aee73 |
860 | if (pregexec(rx, s, strend, truebase, minmatch, |
bbce6d69 |
861 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) |
862 | { |
a0d0e21e |
863 | curpm = pm; |
864 | if (pm->op_pmflags & PMf_ONCE) |
865 | pm->op_pmflags |= PMf_USED; |
866 | goto gotcha; |
867 | } |
868 | else |
869 | goto ret_no; |
870 | /*NOTREACHED*/ |
871 | |
872 | gotcha: |
9212bbba |
873 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
874 | if (gimme == G_ARRAY) { |
875 | I32 iters, i, len; |
876 | |
877 | iters = rx->nparens; |
878 | if (global && !iters) |
879 | i = 1; |
880 | else |
881 | i = 0; |
882 | EXTEND(SP, iters + i); |
bbce6d69 |
883 | EXTEND_MORTAL(iters + i); |
a0d0e21e |
884 | for (i = !i; i <= iters; i++) { |
885 | PUSHs(sv_newmortal()); |
886 | /*SUPPRESS 560*/ |
887 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
888 | len = rx->endp[i] - s; |
889 | sv_setpvn(*SP, s, len); |
890 | } |
891 | } |
892 | if (global) { |
893 | truebase = rx->subbeg; |
5f05dabc |
894 | strend = rx->subend; |
a0d0e21e |
895 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) |
896 | ++rx->endp[0]; |
897 | goto play_it_again; |
898 | } |
4633a7c4 |
899 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
900 | RETURN; |
901 | } |
902 | else { |
903 | if (global) { |
904 | MAGIC* mg = 0; |
905 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) |
906 | mg = mg_find(TARG, 'g'); |
907 | if (!mg) { |
908 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); |
909 | mg = mg_find(TARG, 'g'); |
910 | } |
748a9306 |
911 | if (rx->startp[0]) { |
5f05dabc |
912 | mg->mg_len = rx->endp[0] - rx->subbeg; |
748a9306 |
913 | if (rx->startp[0] == rx->endp[0]) |
914 | mg->mg_flags |= MGf_MINMATCH; |
915 | else |
916 | mg->mg_flags &= ~MGf_MINMATCH; |
917 | } |
a0d0e21e |
918 | } |
4633a7c4 |
919 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
920 | RETPUSHYES; |
921 | } |
922 | |
923 | yup: |
9212bbba |
924 | TAINT_IF(rx->exec_tainted); |
a0d0e21e |
925 | ++BmUSEFUL(pm->op_pmshort); |
926 | curpm = pm; |
927 | if (pm->op_pmflags & PMf_ONCE) |
928 | pm->op_pmflags |= PMf_USED; |
5f05dabc |
929 | Safefree(rx->subbase); |
930 | rx->subbase = Nullch; |
a0d0e21e |
931 | if (global) { |
932 | rx->subbeg = truebase; |
933 | rx->subend = strend; |
934 | rx->startp[0] = s; |
935 | rx->endp[0] = s + SvCUR(pm->op_pmshort); |
936 | goto gotcha; |
937 | } |
938 | if (sawampersand) { |
939 | char *tmps; |
940 | |
a0d0e21e |
941 | tmps = rx->subbase = savepvn(t, strend-t); |
942 | rx->subbeg = tmps; |
943 | rx->subend = tmps + (strend-t); |
944 | tmps = rx->startp[0] = tmps + (s - t); |
945 | rx->endp[0] = tmps + SvCUR(pm->op_pmshort); |
946 | } |
4633a7c4 |
947 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
948 | RETPUSHYES; |
949 | |
950 | nope: |
951 | if (pm->op_pmshort) |
952 | ++BmUSEFUL(pm->op_pmshort); |
953 | |
954 | ret_no: |
4633a7c4 |
955 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
956 | if (gimme == G_ARRAY) |
957 | RETURN; |
958 | RETPUSHNO; |
959 | } |
960 | |
961 | OP * |
962 | do_readline() |
963 | { |
964 | dSP; dTARGETSTACKED; |
965 | register SV *sv; |
966 | STRLEN tmplen = 0; |
967 | STRLEN offset; |
760ac839 |
968 | PerlIO *fp; |
a0d0e21e |
969 | register IO *io = GvIO(last_in_gv); |
970 | register I32 type = op->op_type; |
e79b0511 |
971 | MAGIC *mg; |
a0d0e21e |
972 | |
e79b0511 |
973 | if (SvMAGICAL(last_in_gv) && (mg = mg_find((SV*)last_in_gv, 'q'))) { |
974 | PUSHMARK(SP); |
975 | XPUSHs(mg->mg_obj); |
976 | PUTBACK; |
977 | ENTER; |
978 | perl_call_method("READLINE", GIMME); |
979 | LEAVE; |
980 | SPAGAIN; |
8ebc5c01 |
981 | if (GIMME == G_SCALAR) |
982 | SvSetSV_nosteal(TARG, TOPs); |
e79b0511 |
983 | RETURN; |
984 | } |
a0d0e21e |
985 | fp = Nullfp; |
986 | if (io) { |
987 | fp = IoIFP(io); |
988 | if (!fp) { |
989 | if (IoFLAGS(io) & IOf_ARGV) { |
990 | if (IoFLAGS(io) & IOf_START) { |
991 | IoFLAGS(io) &= ~IOf_START; |
992 | IoLINES(io) = 0; |
993 | if (av_len(GvAVn(last_in_gv)) < 0) { |
994 | SV *tmpstr = newSVpv("-", 1); /* assume stdin */ |
995 | av_push(GvAVn(last_in_gv), tmpstr); |
996 | } |
997 | } |
998 | fp = nextargv(last_in_gv); |
999 | if (!fp) { /* Note: fp != IoIFP(io) */ |
1000 | (void)do_close(last_in_gv, FALSE); /* now it does*/ |
1001 | IoFLAGS(io) |= IOf_START; |
1002 | } |
1003 | } |
1004 | else if (type == OP_GLOB) { |
1005 | SV *tmpcmd = NEWSV(55, 0); |
1006 | SV *tmpglob = POPs; |
1007 | ENTER; |
1008 | SAVEFREESV(tmpcmd); |
1009 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ |
1010 | /* since spawning off a process is a real performance hit */ |
1011 | { |
1012 | #include <descrip.h> |
1013 | #include <lib$routines.h> |
1014 | #include <nam.h> |
1015 | #include <rmsdef.h> |
1016 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; |
1017 | char vmsspec[NAM$C_MAXRSS+1]; |
1018 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; |
1019 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; |
1020 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); |
760ac839 |
1021 | PerlIO *tmpfp; |
a0d0e21e |
1022 | STRLEN i; |
1023 | struct dsc$descriptor_s wilddsc |
1024 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; |
1025 | struct dsc$descriptor_vs rsdsc |
1026 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; |
1027 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; |
1028 | |
1029 | /* We could find out if there's an explicit dev/dir or version |
1030 | by peeking into lib$find_file's internal context at |
1031 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb |
1032 | but that's unsupported, so I don't want to do it now and |
1033 | have it bite someone in the future. */ |
1034 | strcat(tmpfnam,tmpnam(NULL)); |
1035 | cp = SvPV(tmpglob,i); |
1036 | for (; i; i--) { |
1037 | if (cp[i] == ';') hasver = 1; |
1038 | if (cp[i] == '.') { |
1039 | if (sts) hasver = 1; |
1040 | else sts = 1; |
1041 | } |
1042 | if (cp[i] == '/') { |
1043 | hasdir = isunix = 1; |
1044 | break; |
748a9306 |
1045 | } |
a0d0e21e |
1046 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1047 | hasdir = 1; |
1048 | break; |
1049 | } |
1050 | } |
760ac839 |
1051 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
a0d0e21e |
1052 | ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); |
1053 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1054 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, |
1055 | &dfltdsc,NULL,NULL,NULL))&1)) { |
1056 | end = rstr + (unsigned long int) *rslt; |
1057 | if (!hasver) while (*end != ';') end--; |
1058 | *(end++) = '\n'; *end = '\0'; |
1059 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); |
1060 | if (hasdir) { |
f86702cc |
1061 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e |
1062 | begin = rstr; |
1063 | } |
1064 | else { |
1065 | begin = end; |
1066 | while (*(--begin) != ']' && *begin != '>') ; |
1067 | ++begin; |
1068 | } |
760ac839 |
1069 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e |
1070 | } |
1071 | if (cxt) (void)lib$find_file_end(&cxt); |
748a9306 |
1072 | if (ok && sts != RMS$_NMF && |
1073 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; |
a0d0e21e |
1074 | if (!ok) { |
c07a80fd |
1075 | if (!(sts & 1)) { |
1076 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); |
1077 | } |
760ac839 |
1078 | PerlIO_close(tmpfp); |
a0d0e21e |
1079 | fp = NULL; |
1080 | } |
1081 | else { |
760ac839 |
1082 | PerlIO_rewind(tmpfp); |
a0d0e21e |
1083 | IoTYPE(io) = '<'; |
1084 | IoIFP(io) = fp = tmpfp; |
1e422769 |
1085 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e |
1086 | } |
1087 | } |
1088 | } |
1089 | #else /* !VMS */ |
1090 | #ifdef DOSISH |
67955e0c |
1091 | #ifdef OS2 |
1092 | sv_setpv(tmpcmd, "for a in "); |
1093 | sv_catsv(tmpcmd, tmpglob); |
1094 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); |
1095 | #else |
a0d0e21e |
1096 | sv_setpv(tmpcmd, "perlglob "); |
1097 | sv_catsv(tmpcmd, tmpglob); |
1098 | sv_catpv(tmpcmd, " |"); |
67955e0c |
1099 | #endif /* !OS2 */ |
1100 | #else /* !DOSISH */ |
1101 | #if defined(CSH) |
a0d0e21e |
1102 | sv_setpvn(tmpcmd, cshname, cshlen); |
1103 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1104 | sv_catsv(tmpcmd, tmpglob); |
16d20bd9 |
1105 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e |
1106 | #else |
1107 | sv_setpv(tmpcmd, "echo "); |
1108 | sv_catsv(tmpcmd, tmpglob); |
1109 | #if 'z' - 'a' == 25 |
1110 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); |
1111 | #else |
1112 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); |
1113 | #endif |
1114 | #endif /* !CSH */ |
67955e0c |
1115 | #endif /* !DOSISH */ |
c07a80fd |
1116 | (void)do_open(last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
1117 | FALSE, 0, 0, Nullfp); |
a0d0e21e |
1118 | fp = IoIFP(io); |
1119 | #endif /* !VMS */ |
1120 | LEAVE; |
1121 | } |
1122 | } |
1123 | else if (type == OP_GLOB) |
1124 | SP--; |
1125 | } |
1126 | if (!fp) { |
4633a7c4 |
1127 | if (dowarn && io && !(IoFLAGS(io) & IOf_START)) |
a0d0e21e |
1128 | warn("Read on closed filehandle <%s>", GvENAME(last_in_gv)); |
1129 | if (GIMME == G_SCALAR) { |
1130 | (void)SvOK_off(TARG); |
1131 | PUSHTARG; |
1132 | } |
1133 | RETURN; |
1134 | } |
1135 | if (GIMME == G_ARRAY) { |
1136 | sv = sv_2mortal(NEWSV(57, 80)); |
1137 | offset = 0; |
1138 | } |
1139 | else { |
1140 | sv = TARG; |
9607fc9c |
1141 | if (SvROK(sv)) |
1142 | sv_unref(sv); |
a0d0e21e |
1143 | (void)SvUPGRADE(sv, SVt_PV); |
1144 | tmplen = SvLEN(sv); /* remember if already alloced */ |
1145 | if (!tmplen) |
1146 | Sv_Grow(sv, 80); /* try short-buffering it */ |
1147 | if (type == OP_RCATLINE) |
1148 | offset = SvCUR(sv); |
1149 | else |
1150 | offset = 0; |
1151 | } |
1152 | for (;;) { |
1153 | if (!sv_gets(sv, fp, offset)) { |
760ac839 |
1154 | PerlIO_clearerr(fp); |
a0d0e21e |
1155 | if (IoFLAGS(io) & IOf_ARGV) { |
1156 | fp = nextargv(last_in_gv); |
1157 | if (fp) |
1158 | continue; |
1159 | (void)do_close(last_in_gv, FALSE); |
1160 | IoFLAGS(io) |= IOf_START; |
1161 | } |
1162 | else if (type == OP_GLOB) { |
1163 | (void)do_close(last_in_gv, FALSE); |
1164 | } |
1165 | if (GIMME == G_SCALAR) { |
1166 | (void)SvOK_off(TARG); |
1167 | PUSHTARG; |
1168 | } |
1169 | RETURN; |
1170 | } |
bbce6d69 |
1171 | /* This should not be marked tainted if the fp is marked clean */ |
1172 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { |
1173 | TAINT; |
1174 | SvTAINTED_on(sv); |
1175 | } |
a0d0e21e |
1176 | IoLINES(io)++; |
71be2cbc |
1177 | SvSETMAGIC(sv); |
a0d0e21e |
1178 | XPUSHs(sv); |
a0d0e21e |
1179 | if (type == OP_GLOB) { |
1180 | char *tmps; |
1181 | |
c07a80fd |
1182 | if (SvCUR(sv) > 0 && SvCUR(rs) > 0) { |
1183 | tmps = SvEND(sv) - 1; |
1184 | if (*tmps == *SvPVX(rs)) { |
1185 | *tmps = '\0'; |
1186 | SvCUR(sv)--; |
1187 | } |
1188 | } |
a0d0e21e |
1189 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1190 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && |
1191 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) |
1192 | break; |
1193 | if (*tmps && Stat(SvPVX(sv), &statbuf) < 0) { |
1194 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1195 | continue; |
1196 | } |
1197 | } |
1198 | if (GIMME == G_ARRAY) { |
1199 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1200 | SvLEN_set(sv, SvCUR(sv)+1); |
1201 | Renew(SvPVX(sv), SvLEN(sv), char); |
1202 | } |
1203 | sv = sv_2mortal(NEWSV(58, 80)); |
1204 | continue; |
1205 | } |
1206 | else if (!tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
1207 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1208 | if (SvCUR(sv) < 60) |
1209 | SvLEN_set(sv, 80); |
1210 | else |
1211 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ |
1212 | Renew(SvPVX(sv), SvLEN(sv), char); |
1213 | } |
1214 | RETURN; |
1215 | } |
1216 | } |
1217 | |
1218 | PP(pp_enter) |
1219 | { |
1220 | dSP; |
1221 | register CONTEXT *cx; |
1222 | I32 gimme; |
1223 | |
1224 | /* |
1225 | * We don't just use the GIMME macro here because it assumes there's |
1226 | * already a context, which ain't necessarily so at initial startup. |
1227 | */ |
1228 | |
1229 | if (op->op_flags & OPf_KNOW) |
1230 | gimme = op->op_flags & OPf_LIST; |
1231 | else if (cxstack_ix >= 0) |
1232 | gimme = cxstack[cxstack_ix].blk_gimme; |
1233 | else |
1234 | gimme = G_SCALAR; |
1235 | |
1236 | ENTER; |
1237 | |
1238 | SAVETMPS; |
1239 | PUSHBLOCK(cx, CXt_BLOCK, sp); |
1240 | |
1241 | RETURN; |
1242 | } |
1243 | |
1244 | PP(pp_helem) |
1245 | { |
1246 | dSP; |
760ac839 |
1247 | HE* he; |
a0d0e21e |
1248 | SV *keysv = POPs; |
a0d0e21e |
1249 | HV *hv = (HV*)POPs; |
1250 | I32 lval = op->op_flags & OPf_MOD; |
1251 | |
1252 | if (SvTYPE(hv) != SVt_PVHV) |
1253 | RETPUSHUNDEF; |
760ac839 |
1254 | he = hv_fetch_ent(hv, keysv, lval, 0); |
a0d0e21e |
1255 | if (lval) { |
760ac839 |
1256 | if (!he || HeVAL(he) == &sv_undef) |
1257 | DIE(no_helem, SvPV(keysv, na)); |
5f05dabc |
1258 | if (op->op_private & OPpLVAL_INTRO) { |
1259 | if (HvNAME(hv) && isGV(HeVAL(he))) |
1260 | save_gp((GV*)HeVAL(he), !(op->op_flags & OPf_SPECIAL)); |
1261 | else |
1262 | save_svref(&HeVAL(he)); |
1263 | } |
1264 | else if (op->op_private & OPpDEREF) |
760ac839 |
1265 | provide_ref(op, HeVAL(he)); |
a0d0e21e |
1266 | } |
760ac839 |
1267 | PUSHs(he ? HeVAL(he) : &sv_undef); |
a0d0e21e |
1268 | RETURN; |
1269 | } |
1270 | |
1271 | PP(pp_leave) |
1272 | { |
1273 | dSP; |
1274 | register CONTEXT *cx; |
1275 | register SV **mark; |
1276 | SV **newsp; |
1277 | PMOP *newpm; |
1278 | I32 gimme; |
1279 | |
1280 | if (op->op_flags & OPf_SPECIAL) { |
1281 | cx = &cxstack[cxstack_ix]; |
1282 | cx->blk_oldpm = curpm; /* fake block should preserve $1 et al */ |
1283 | } |
1284 | |
1285 | POPBLOCK(cx,newpm); |
1286 | |
1287 | if (op->op_flags & OPf_KNOW) |
1288 | gimme = op->op_flags & OPf_LIST; |
1289 | else if (cxstack_ix >= 0) |
1290 | gimme = cxstack[cxstack_ix].blk_gimme; |
1291 | else |
1292 | gimme = G_SCALAR; |
1293 | |
1294 | if (gimme == G_SCALAR) { |
1295 | if (op->op_private & OPpLEAVE_VOID) |
1296 | SP = newsp; |
1297 | else { |
1298 | MARK = newsp + 1; |
1299 | if (MARK <= SP) |
1300 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) |
1301 | *MARK = TOPs; |
1302 | else |
1303 | *MARK = sv_mortalcopy(TOPs); |
1304 | else { |
1305 | MEXTEND(mark,0); |
1306 | *MARK = &sv_undef; |
1307 | } |
1308 | SP = MARK; |
1309 | } |
1310 | } |
1311 | else { |
1312 | for (mark = newsp + 1; mark <= SP; mark++) |
1313 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) |
1314 | *mark = sv_mortalcopy(*mark); |
1315 | /* in case LEAVE wipes old return values */ |
1316 | } |
1317 | curpm = newpm; /* Don't pop $1 et al till now */ |
1318 | |
1319 | LEAVE; |
1320 | |
1321 | RETURN; |
1322 | } |
1323 | |
1324 | PP(pp_iter) |
1325 | { |
1326 | dSP; |
1327 | register CONTEXT *cx; |
5f05dabc |
1328 | SV* sv; |
4633a7c4 |
1329 | AV* av; |
a0d0e21e |
1330 | |
1331 | EXTEND(sp, 1); |
1332 | cx = &cxstack[cxstack_ix]; |
1333 | if (cx->cx_type != CXt_LOOP) |
1334 | DIE("panic: pp_iter"); |
1335 | |
71be2cbc |
1336 | av = cx->blk_loop.iterary; |
1337 | if (cx->blk_loop.iterix >= (av == curstack ? cx->blk_oldsp : AvFILL(av))) |
a0d0e21e |
1338 | RETPUSHNO; |
1339 | |
7a4c00b4 |
1340 | SvREFCNT_dec(*cx->blk_loop.itervar); |
1341 | |
5f05dabc |
1342 | if (sv = AvARRAY(av)[++cx->blk_loop.iterix]) |
a0d0e21e |
1343 | SvTEMP_off(sv); |
a0d0e21e |
1344 | else |
5f05dabc |
1345 | sv = &sv_undef; |
1346 | if (av != curstack && SvIMMORTAL(sv)) { |
1347 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc |
1348 | if (lv && SvREFCNT(lv) > 1) { |
1349 | SvREFCNT_dec(lv); |
1350 | lv = Nullsv; |
1351 | } |
5f05dabc |
1352 | if (lv) |
1353 | SvREFCNT_dec(LvTARG(lv)); |
1354 | else { |
1355 | lv = cx->blk_loop.iterlval = newSVsv(sv); |
1356 | sv_upgrade(lv, SVt_PVLV); |
1357 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
1358 | LvTYPE(lv) = 'y'; |
1359 | } |
1360 | LvTARG(lv) = SvREFCNT_inc(av); |
1361 | LvTARGOFF(lv) = cx->blk_loop.iterix; |
1362 | LvTARGLEN(lv) = 1; |
1363 | sv = (SV*)lv; |
1364 | } |
7a4c00b4 |
1365 | |
1366 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e |
1367 | RETPUSHYES; |
1368 | } |
1369 | |
1370 | PP(pp_subst) |
1371 | { |
1372 | dSP; dTARG; |
1373 | register PMOP *pm = cPMOP; |
1374 | PMOP *rpm = pm; |
1375 | register SV *dstr; |
1376 | register char *s; |
1377 | char *strend; |
1378 | register char *m; |
1379 | char *c; |
1380 | register char *d; |
1381 | STRLEN clen; |
1382 | I32 iters = 0; |
1383 | I32 maxiters; |
1384 | register I32 i; |
1385 | bool once; |
71be2cbc |
1386 | bool rxtainted; |
a0d0e21e |
1387 | char *orig; |
1388 | I32 safebase; |
1389 | register REGEXP *rx = pm->op_pmregexp; |
1390 | STRLEN len; |
1391 | int force_on_match = 0; |
4633a7c4 |
1392 | I32 oldsave = savestack_ix; |
a0d0e21e |
1393 | |
1394 | if (pm->op_pmflags & PMf_CONST) /* known replacement string? */ |
1395 | dstr = POPs; |
1396 | if (op->op_flags & OPf_STACKED) |
1397 | TARG = POPs; |
1398 | else { |
1399 | TARG = GvSV(defgv); |
1400 | EXTEND(SP,1); |
1401 | } |
1402 | s = SvPV(TARG, len); |
8e07c86e |
1403 | if (!SvPOKp(TARG) || SvREADONLY(TARG) || (SvTYPE(TARG) == SVt_PVGV)) |
a0d0e21e |
1404 | force_on_match = 1; |
9212bbba |
1405 | TAINT_NOT; |
a0d0e21e |
1406 | |
1407 | force_it: |
1408 | if (!pm || !s) |
1409 | DIE("panic: do_subst"); |
1410 | |
1411 | strend = s + len; |
1412 | maxiters = (strend - s) + 10; |
1413 | |
1414 | if (!rx->prelen && curpm) { |
1415 | pm = curpm; |
1416 | rx = pm->op_pmregexp; |
1417 | } |
5f05dabc |
1418 | safebase = (!rx->nparens && !sawampersand); |
a0d0e21e |
1419 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
1420 | SAVEINT(multiline); |
1421 | multiline = pm->op_pmflags & PMf_MULTILINE; |
1422 | } |
1423 | orig = m = s; |
1424 | if (pm->op_pmshort) { |
1425 | if (pm->op_pmflags & PMf_SCANFIRST) { |
1426 | if (SvSCREAM(TARG)) { |
1427 | if (screamfirst[BmRARE(pm->op_pmshort)] < 0) |
1428 | goto nope; |
1429 | else if (!(s = screaminstr(TARG, pm->op_pmshort))) |
1430 | goto nope; |
1431 | } |
1432 | else if (!(s = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
1433 | pm->op_pmshort))) |
1434 | goto nope; |
1435 | if (s && rx->regback >= 0) { |
1436 | ++BmUSEFUL(pm->op_pmshort); |
1437 | s -= rx->regback; |
1438 | if (s < m) |
1439 | s = m; |
1440 | } |
1441 | else |
1442 | s = m; |
1443 | } |
1444 | else if (!multiline) { |
bbce6d69 |
1445 | if (*SvPVX(pm->op_pmshort) != *s |
1446 | || (pm->op_pmslen > 1 |
36477c24 |
1447 | && memNE(SvPVX(pm->op_pmshort), s, pm->op_pmslen))) |
bbce6d69 |
1448 | goto nope; |
a0d0e21e |
1449 | } |
1450 | if (!rx->naughty && --BmUSEFUL(pm->op_pmshort) < 0) { |
1451 | SvREFCNT_dec(pm->op_pmshort); |
1452 | pm->op_pmshort = Nullsv; /* opt is being useless */ |
1453 | } |
1454 | } |
71be2cbc |
1455 | |
1456 | /* only replace once? */ |
a0d0e21e |
1457 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc |
1458 | |
1459 | /* known replacement string? */ |
1460 | c = (rpm->op_pmflags & PMf_CONST) ? SvPV(dstr, clen) : Nullch; |
1461 | |
1462 | /* can do inplace substitution? */ |
1463 | if (c && clen <= rx->minlen) { |
1464 | if (! pregexec(rx, s, strend, orig, 0, |
1465 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
1466 | PUSHs(&sv_no); |
1467 | LEAVE_SCOPE(oldsave); |
1468 | RETURN; |
1469 | } |
1470 | if (force_on_match) { |
1471 | force_on_match = 0; |
1472 | s = SvPV_force(TARG, len); |
1473 | goto force_it; |
1474 | } |
1475 | if (rx->subbase) /* oops, no we can't */ |
1476 | goto long_way; |
1477 | d = s; |
1478 | curpm = pm; |
1479 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1480 | if (once) { |
1481 | rxtainted = rx->exec_tainted; |
1482 | m = rx->startp[0]; |
1483 | d = rx->endp[0]; |
1484 | s = orig; |
1485 | if (m - s > strend - d) { /* faster to shorten from end */ |
1486 | if (clen) { |
1487 | Copy(c, m, clen, char); |
1488 | m += clen; |
a0d0e21e |
1489 | } |
71be2cbc |
1490 | i = strend - d; |
1491 | if (i > 0) { |
1492 | Move(d, m, i, char); |
1493 | m += i; |
a0d0e21e |
1494 | } |
71be2cbc |
1495 | *m = '\0'; |
1496 | SvCUR_set(TARG, m - s); |
1497 | } |
1498 | /*SUPPRESS 560*/ |
1499 | else if (i = m - s) { /* faster from front */ |
1500 | d -= clen; |
1501 | m = d; |
1502 | sv_chop(TARG, d-i); |
1503 | s += i; |
1504 | while (i--) |
1505 | *--d = *--s; |
1506 | if (clen) |
1507 | Copy(c, m, clen, char); |
1508 | } |
1509 | else if (clen) { |
1510 | d -= clen; |
1511 | sv_chop(TARG, d); |
1512 | Copy(c, d, clen, char); |
1513 | } |
1514 | else { |
1515 | sv_chop(TARG, d); |
1516 | } |
9212bbba |
1517 | TAINT_IF(rxtainted); |
71be2cbc |
1518 | PUSHs(&sv_yes); |
1519 | } |
1520 | else { |
1521 | rxtainted = 0; |
1522 | do { |
1523 | if (iters++ > maxiters) |
1524 | DIE("Substitution loop"); |
1525 | rxtainted |= rx->exec_tainted; |
1526 | m = rx->startp[0]; |
1527 | /*SUPPRESS 560*/ |
1528 | if (i = m - s) { |
1529 | if (s != d) |
1530 | Move(s, d, i, char); |
1531 | d += i; |
a0d0e21e |
1532 | } |
71be2cbc |
1533 | if (clen) { |
1534 | Copy(c, d, clen, char); |
1535 | d += clen; |
1536 | } |
1537 | s = rx->endp[0]; |
1538 | } while (pregexec(rx, s, strend, orig, s == m, |
1539 | Nullsv, TRUE)); /* don't match same null twice */ |
1540 | if (s != d) { |
1541 | i = strend - s; |
1542 | SvCUR_set(TARG, d - SvPVX(TARG) + i); |
1543 | Move(s, d, i+1, char); /* include the NUL */ |
a0d0e21e |
1544 | } |
9212bbba |
1545 | TAINT_IF(rxtainted); |
71be2cbc |
1546 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e |
1547 | } |
71be2cbc |
1548 | (void)SvPOK_only(TARG); |
1549 | SvSETMAGIC(TARG); |
9212bbba |
1550 | SvTAINT(TARG); |
71be2cbc |
1551 | LEAVE_SCOPE(oldsave); |
1552 | RETURN; |
a0d0e21e |
1553 | } |
71be2cbc |
1554 | |
e50aee73 |
1555 | if (pregexec(rx, s, strend, orig, 0, |
5f05dabc |
1556 | SvSCREAM(TARG) ? TARG : Nullsv, safebase)) { |
a0d0e21e |
1557 | long_way: |
1558 | if (force_on_match) { |
1559 | force_on_match = 0; |
1560 | s = SvPV_force(TARG, len); |
1561 | goto force_it; |
1562 | } |
71be2cbc |
1563 | rxtainted = rx->exec_tainted; |
a0d0e21e |
1564 | dstr = NEWSV(25, sv_len(TARG)); |
1565 | sv_setpvn(dstr, m, s-m); |
1566 | curpm = pm; |
1567 | if (!c) { |
1568 | register CONTEXT *cx; |
1569 | PUSHSUBST(cx); |
1570 | RETURNOP(cPMOP->op_pmreplroot); |
1571 | } |
1572 | do { |
1573 | if (iters++ > maxiters) |
1574 | DIE("Substitution loop"); |
71be2cbc |
1575 | rxtainted |= rx->exec_tainted; |
a0d0e21e |
1576 | if (rx->subbase && rx->subbase != orig) { |
1577 | m = s; |
1578 | s = orig; |
1579 | orig = rx->subbase; |
1580 | s = orig + (m - s); |
1581 | strend = s + (strend - m); |
1582 | } |
1583 | m = rx->startp[0]; |
1584 | sv_catpvn(dstr, s, m-s); |
1585 | s = rx->endp[0]; |
1586 | if (clen) |
1587 | sv_catpvn(dstr, c, clen); |
1588 | if (once) |
1589 | break; |
5f05dabc |
1590 | } while (pregexec(rx, s, strend, orig, s == m, Nullsv, safebase)); |
a0d0e21e |
1591 | sv_catpvn(dstr, s, strend - s); |
748a9306 |
1592 | |
9212bbba |
1593 | TAINT_IF(rxtainted); |
1594 | |
4633a7c4 |
1595 | (void)SvOOK_off(TARG); |
cb0b1708 |
1596 | Safefree(SvPVX(TARG)); |
748a9306 |
1597 | SvPVX(TARG) = SvPVX(dstr); |
1598 | SvCUR_set(TARG, SvCUR(dstr)); |
1599 | SvLEN_set(TARG, SvLEN(dstr)); |
1600 | SvPVX(dstr) = 0; |
1601 | sv_free(dstr); |
1602 | |
a0d0e21e |
1603 | (void)SvPOK_only(TARG); |
1604 | SvSETMAGIC(TARG); |
9212bbba |
1605 | SvTAINT(TARG); |
a0d0e21e |
1606 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
4633a7c4 |
1607 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1608 | RETURN; |
1609 | } |
9212bbba |
1610 | |
a0d0e21e |
1611 | PUSHs(&sv_no); |
4633a7c4 |
1612 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1613 | RETURN; |
1614 | |
1615 | nope: |
1616 | ++BmUSEFUL(pm->op_pmshort); |
1617 | PUSHs(&sv_no); |
4633a7c4 |
1618 | LEAVE_SCOPE(oldsave); |
a0d0e21e |
1619 | RETURN; |
1620 | } |
1621 | |
1622 | PP(pp_grepwhile) |
1623 | { |
1624 | dSP; |
1625 | |
1626 | if (SvTRUEx(POPs)) |
1627 | stack_base[markstack_ptr[-1]++] = stack_base[*markstack_ptr]; |
1628 | ++*markstack_ptr; |
1629 | LEAVE; /* exit inner scope */ |
1630 | |
1631 | /* All done yet? */ |
1632 | if (stack_base + *markstack_ptr > sp) { |
1633 | I32 items; |
1634 | |
1635 | LEAVE; /* exit outer scope */ |
1636 | (void)POPMARK; /* pop src */ |
1637 | items = --*markstack_ptr - markstack_ptr[-1]; |
1638 | (void)POPMARK; /* pop dst */ |
1639 | SP = stack_base + POPMARK; /* pop original mark */ |
1640 | if (GIMME != G_ARRAY) { |
1641 | dTARGET; |
1642 | XPUSHi(items); |
1643 | RETURN; |
1644 | } |
1645 | SP += items; |
1646 | RETURN; |
1647 | } |
1648 | else { |
1649 | SV *src; |
1650 | |
1651 | ENTER; /* enter inner scope */ |
1652 | SAVESPTR(curpm); |
1653 | |
1654 | src = stack_base[*markstack_ptr]; |
1655 | SvTEMP_off(src); |
1656 | GvSV(defgv) = src; |
1657 | |
1658 | RETURNOP(cLOGOP->op_other); |
1659 | } |
1660 | } |
1661 | |
1662 | PP(pp_leavesub) |
1663 | { |
1664 | dSP; |
1665 | SV **mark; |
1666 | SV **newsp; |
1667 | PMOP *newpm; |
1668 | I32 gimme; |
1669 | register CONTEXT *cx; |
f86702cc |
1670 | struct block_sub cxsub; |
a0d0e21e |
1671 | |
1672 | POPBLOCK(cx,newpm); |
f86702cc |
1673 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1674 | |
a0d0e21e |
1675 | if (gimme == G_SCALAR) { |
1676 | MARK = newsp + 1; |
1677 | if (MARK <= SP) |
f86702cc |
1678 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
a0d0e21e |
1679 | else { |
f86702cc |
1680 | MEXTEND(MARK, 0); |
a0d0e21e |
1681 | *MARK = &sv_undef; |
1682 | } |
1683 | SP = MARK; |
1684 | } |
1685 | else { |
f86702cc |
1686 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
1687 | if (!SvTEMP(*MARK)) |
1688 | *MARK = sv_mortalcopy(*MARK); |
1689 | } |
a0d0e21e |
1690 | } |
f86702cc |
1691 | PUTBACK; |
1692 | |
1693 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ |
1694 | curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e |
1695 | |
1696 | LEAVE; |
a0d0e21e |
1697 | return pop_return(); |
1698 | } |
1699 | |
1700 | PP(pp_entersub) |
1701 | { |
1702 | dSP; dPOPss; |
1703 | GV *gv; |
1704 | HV *stash; |
1705 | register CV *cv; |
1706 | register CONTEXT *cx; |
5d94fbed |
1707 | I32 gimme; |
07055b4c |
1708 | bool hasargs = (op->op_flags & OPf_STACKED) != 0; |
a0d0e21e |
1709 | |
1710 | if (!sv) |
1711 | DIE("Not a CODE reference"); |
1712 | switch (SvTYPE(sv)) { |
1713 | default: |
1714 | if (!SvROK(sv)) { |
748a9306 |
1715 | char *sym; |
1716 | |
a0d0e21e |
1717 | if (sv == &sv_yes) /* unfound import, ignore */ |
1718 | RETURN; |
15ff848f |
1719 | if (SvGMAGICAL(sv)) { |
1720 | mg_get(sv); |
1721 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; |
1722 | } |
1723 | else |
1724 | sym = SvPV(sv, na); |
1725 | if (!sym) |
a0d0e21e |
1726 | DIE(no_usym, "a subroutine"); |
1727 | if (op->op_private & HINT_STRICT_REFS) |
748a9306 |
1728 | DIE(no_symref, sym, "a subroutine"); |
1729 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e |
1730 | break; |
1731 | } |
1732 | cv = (CV*)SvRV(sv); |
28757baa |
1733 | if (SvTYPE(cv) == SVt_PVCV) |
a0d0e21e |
1734 | break; |
1735 | /* FALL THROUGH */ |
1736 | case SVt_PVHV: |
1737 | case SVt_PVAV: |
1738 | DIE("Not a CODE reference"); |
1739 | case SVt_PVCV: |
1740 | cv = (CV*)sv; |
1741 | break; |
1742 | case SVt_PVGV: |
8ebc5c01 |
1743 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e |
1744 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
1745 | break; |
1746 | } |
1747 | |
8ebc5c01 |
1748 | ENTER; |
1749 | SAVETMPS; |
1750 | |
a0d0e21e |
1751 | retry: |
1752 | if (!cv) |
1753 | DIE("Not a CODE reference"); |
1754 | |
1755 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a |
1756 | GV* autogv; |
1757 | SV* subname; |
1758 | |
1759 | /* anonymous or undef'd function leaves us no recourse */ |
1760 | if (CvANON(cv) || !(gv = CvGV(cv))) |
1761 | DIE("Undefined subroutine called"); |
1762 | /* autoloaded stub? */ |
1763 | if (cv != GvCV(gv)) { |
1764 | cv = GvCV(gv); |
1765 | goto retry; |
a0d0e21e |
1766 | } |
44a8e56a |
1767 | /* should call AUTOLOAD now? */ |
1768 | if ((autogv = gv_autoload(GvESTASH(gv), GvNAME(gv), GvNAMELEN(gv)))) { |
1769 | cv = GvCV(autogv); |
1770 | goto retry; |
1771 | } |
1772 | /* sorry */ |
1773 | subname = sv_newmortal(); |
1774 | gv_efullname3(subname, gv, Nullch); |
1775 | DIE("Undefined subroutine &%s called", SvPVX(subname)); |
a0d0e21e |
1776 | } |
1777 | |
4633a7c4 |
1778 | gimme = GIMME; |
28757baa |
1779 | if ((op->op_private & OPpENTERSUB_DB) && GvCV(DBsub) && !CvNODEBUG(cv)) { |
71be2cbc |
1780 | SV *oldsv = sv; |
a0d0e21e |
1781 | sv = GvSV(DBsub); |
1782 | save_item(sv); |
67955e0c |
1783 | gv = CvGV(cv); |
71be2cbc |
1784 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) |
1785 | || strEQ(GvNAME(gv), "END") |
1786 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ |
1787 | !( (SvTYPE(oldsv) == SVt_PVGV) && (GvCV((GV*)oldsv) == cv) |
1788 | && (gv = (GV*)oldsv) ))) { /* Use GV from the stack as a fallback. */ |
1789 | /* GV is potentially non-unique, or contain different CV. */ |
748a9306 |
1790 | sv_setsv(sv, newRV((SV*)cv)); |
a5f75d66 |
1791 | } |
748a9306 |
1792 | else { |
4f732624 |
1793 | gv_efullname3(sv, gv, Nullch); |
748a9306 |
1794 | } |
a0d0e21e |
1795 | cv = GvCV(DBsub); |
67955e0c |
1796 | if (CvXSUB(cv)) curcopdb = curcop; |
a0d0e21e |
1797 | if (!cv) |
1798 | DIE("No DBsub routine"); |
1799 | } |
1800 | |
1801 | if (CvXSUB(cv)) { |
1802 | if (CvOLDSTYLE(cv)) { |
ecfc5424 |
1803 | I32 (*fp3)_((int,int,int)); |
a0d0e21e |
1804 | dMARK; |
1805 | register I32 items = SP - MARK; |
67955e0c |
1806 | /* We dont worry to copy from @_. */ |
a0d0e21e |
1807 | while (sp > mark) { |
1808 | sp[1] = sp[0]; |
1809 | sp--; |
1810 | } |
1811 | stack_sp = mark + 1; |
ecfc5424 |
1812 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
1813 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
1814 | MARK - stack_base + 1, |
1815 | items); |
a0d0e21e |
1816 | stack_sp = stack_base + items; |
1817 | } |
1818 | else { |
748a9306 |
1819 | I32 markix = TOPMARK; |
1820 | |
a0d0e21e |
1821 | PUTBACK; |
67955e0c |
1822 | |
1823 | if (!hasargs) { |
1824 | /* Need to copy @_ to stack. Alternative may be to |
1825 | * switch stack to @_, and copy return values |
1826 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ |
1827 | AV* av = GvAV(defgv); |
1828 | I32 items = AvFILL(av) + 1; |
1829 | |
1830 | if (items) { |
1831 | /* Mark is at the end of the stack. */ |
1832 | EXTEND(sp, items); |
1833 | Copy(AvARRAY(av), sp + 1, items, SV*); |
1834 | sp += items; |
1835 | PUTBACK ; |
1836 | } |
1837 | } |
1838 | if (curcopdb) { /* We assume that the first |
1839 | XSUB in &DB::sub is the |
1840 | called one. */ |
1841 | SAVESPTR(curcop); |
1842 | curcop = curcopdb; |
1843 | curcopdb = NULL; |
1844 | } |
1845 | /* Do we need to open block here? XXXX */ |
a0d0e21e |
1846 | (void)(*CvXSUB(cv))(cv); |
748a9306 |
1847 | |
1848 | /* Enforce some sanity in scalar context. */ |
5d94fbed |
1849 | if (gimme == G_SCALAR && ++markix != stack_sp - stack_base ) { |
748a9306 |
1850 | if (markix > stack_sp - stack_base) |
1851 | *(stack_base + markix) = &sv_undef; |
1852 | else |
1853 | *(stack_base + markix) = *stack_sp; |
1854 | stack_sp = stack_base + markix; |
1855 | } |
a0d0e21e |
1856 | } |
1857 | LEAVE; |
1858 | return NORMAL; |
1859 | } |
1860 | else { |
1861 | dMARK; |
1862 | register I32 items = SP - MARK; |
a0d0e21e |
1863 | AV* padlist = CvPADLIST(cv); |
1864 | SV** svp = AvARRAY(padlist); |
1865 | push_return(op->op_next); |
1866 | PUSHBLOCK(cx, CXt_SUB, MARK); |
1867 | PUSHSUB(cx); |
1868 | CvDEPTH(cv)++; |
1869 | if (CvDEPTH(cv) < 2) |
1870 | (void)SvREFCNT_inc(cv); |
1871 | else { /* save temporaries on recursion? */ |
5f05dabc |
1872 | if (CvDEPTH(cv) == 100 && dowarn |
44a8e56a |
1873 | && !(perldb && cv == GvCV(DBsub))) |
1874 | sub_crush_depth(cv); |
a0d0e21e |
1875 | if (CvDEPTH(cv) > AvFILL(padlist)) { |
1876 | AV *av; |
1877 | AV *newpad = newAV(); |
4aa0a1f7 |
1878 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
a0d0e21e |
1879 | I32 ix = AvFILL((AV*)svp[1]); |
1880 | svp = AvARRAY(svp[0]); |
748a9306 |
1881 | for ( ;ix > 0; ix--) { |
a0d0e21e |
1882 | if (svp[ix] != &sv_undef) { |
748a9306 |
1883 | char *name = SvPVX(svp[ix]); |
5f05dabc |
1884 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
1885 | || *name == '&') /* anonymous code? */ |
1886 | { |
1887 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); |
748a9306 |
1888 | } |
1889 | else { /* our own lexical */ |
1890 | if (*name == '@') |
1891 | av_store(newpad, ix, sv = (SV*)newAV()); |
1892 | else if (*name == '%') |
1893 | av_store(newpad, ix, sv = (SV*)newHV()); |
1894 | else |
1895 | av_store(newpad, ix, sv = NEWSV(0,0)); |
1896 | SvPADMY_on(sv); |
1897 | } |
a0d0e21e |
1898 | } |
1899 | else { |
748a9306 |
1900 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e |
1901 | SvPADTMP_on(sv); |
1902 | } |
1903 | } |
1904 | av = newAV(); /* will be @_ */ |
1905 | av_extend(av, 0); |
1906 | av_store(newpad, 0, (SV*)av); |
1907 | AvFLAGS(av) = AVf_REIFY; |
1908 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); |
1909 | AvFILL(padlist) = CvDEPTH(cv); |
1910 | svp = AvARRAY(padlist); |
1911 | } |
1912 | } |
1913 | SAVESPTR(curpad); |
1914 | curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
1915 | if (hasargs) { |
1916 | AV* av = (AV*)curpad[0]; |
1917 | SV** ary; |
1918 | |
1919 | if (AvREAL(av)) { |
1920 | av_clear(av); |
1921 | AvREAL_off(av); |
1922 | } |
1923 | cx->blk_sub.savearray = GvAV(defgv); |
1924 | cx->blk_sub.argarray = av; |
0c8c7a05 |
1925 | GvAV(defgv) = (AV*)SvREFCNT_inc(av); |
a0d0e21e |
1926 | ++MARK; |
1927 | |
1928 | if (items > AvMAX(av) + 1) { |
1929 | ary = AvALLOC(av); |
1930 | if (AvARRAY(av) != ary) { |
1931 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); |
1932 | SvPVX(av) = (char*)ary; |
1933 | } |
1934 | if (items > AvMAX(av) + 1) { |
1935 | AvMAX(av) = items - 1; |
1936 | Renew(ary,items,SV*); |
1937 | AvALLOC(av) = ary; |
1938 | SvPVX(av) = (char*)ary; |
1939 | } |
1940 | } |
1941 | Copy(MARK,AvARRAY(av),items,SV*); |
1942 | AvFILL(av) = items - 1; |
1943 | |
1944 | while (items--) { |
1945 | if (*MARK) |
1946 | SvTEMP_off(*MARK); |
1947 | MARK++; |
1948 | } |
1949 | } |
1950 | RETURNOP(CvSTART(cv)); |
1951 | } |
1952 | } |
1953 | |
44a8e56a |
1954 | void |
1955 | sub_crush_depth(cv) |
1956 | CV* cv; |
1957 | { |
1958 | if (CvANON(cv)) |
1959 | warn("Deep recursion on anonymous subroutine"); |
1960 | else { |
1961 | SV* tmpstr = sv_newmortal(); |
1962 | gv_efullname3(tmpstr, CvGV(cv), Nullch); |
1963 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); |
1964 | } |
1965 | } |
1966 | |
a0d0e21e |
1967 | PP(pp_aelem) |
1968 | { |
1969 | dSP; |
1970 | SV** svp; |
748a9306 |
1971 | I32 elem = POPi; |
a0d0e21e |
1972 | AV *av = (AV*)POPs; |
1973 | I32 lval = op->op_flags & OPf_MOD; |
1974 | |
748a9306 |
1975 | if (elem > 0) |
1976 | elem -= curcop->cop_arybase; |
a0d0e21e |
1977 | if (SvTYPE(av) != SVt_PVAV) |
1978 | RETPUSHUNDEF; |
1979 | svp = av_fetch(av, elem, lval); |
1980 | if (lval) { |
1981 | if (!svp || *svp == &sv_undef) |
1982 | DIE(no_aelem, elem); |
1983 | if (op->op_private & OPpLVAL_INTRO) |
1984 | save_svref(svp); |
5f05dabc |
1985 | else if (op->op_private & OPpDEREF) |
02a9e968 |
1986 | provide_ref(op, *svp); |
a0d0e21e |
1987 | } |
1988 | PUSHs(svp ? *svp : &sv_undef); |
1989 | RETURN; |
1990 | } |
1991 | |
02a9e968 |
1992 | void |
1993 | provide_ref(op, sv) |
1994 | OP* op; |
1995 | SV* sv; |
1996 | { |
1997 | if (SvGMAGICAL(sv)) |
1998 | mg_get(sv); |
1999 | if (!SvOK(sv)) { |
2000 | if (SvREADONLY(sv)) |
2001 | croak(no_modify); |
5f05dabc |
2002 | if (SvTYPE(sv) < SVt_RV) |
2003 | sv_upgrade(sv, SVt_RV); |
2004 | else if (SvTYPE(sv) >= SVt_PV) { |
2005 | (void)SvOOK_off(sv); |
2006 | Safefree(SvPVX(sv)); |
2007 | SvLEN(sv) = SvCUR(sv) = 0; |
2008 | } |
2009 | switch (op->op_private & OPpDEREF) |
2010 | { |
2011 | case OPpDEREF_SV: |
2012 | SvRV(sv) = newSV(0); |
2013 | break; |
2014 | case OPpDEREF_AV: |
2015 | SvRV(sv) = (SV*)newAV(); |
2016 | break; |
2017 | case OPpDEREF_HV: |
2018 | SvRV(sv) = (SV*)newHV(); |
2019 | break; |
2020 | } |
02a9e968 |
2021 | SvROK_on(sv); |
2022 | SvSETMAGIC(sv); |
2023 | } |
2024 | } |
2025 | |
a0d0e21e |
2026 | PP(pp_method) |
2027 | { |
2028 | dSP; |
2029 | SV* sv; |
2030 | SV* ob; |
2031 | GV* gv; |
2032 | SV* nm; |
2033 | |
2034 | nm = TOPs; |
2035 | sv = *(stack_base + TOPMARK + 1); |
2036 | |
2037 | gv = 0; |
16d20bd9 |
2038 | if (SvGMAGICAL(sv)) |
2039 | mg_get(sv); |
a0d0e21e |
2040 | if (SvROK(sv)) |
16d20bd9 |
2041 | ob = (SV*)SvRV(sv); |
a0d0e21e |
2042 | else { |
2043 | GV* iogv; |
2044 | char* packname = 0; |
67955e0c |
2045 | STRLEN packlen; |
a0d0e21e |
2046 | |
2047 | if (!SvOK(sv) || |
67955e0c |
2048 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e |
2049 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2050 | !(ob=(SV*)GvIO(iogv))) |
2051 | { |
2052 | char *name = SvPV(nm, na); |
2053 | HV *stash; |
2054 | if (!packname || !isALPHA(*packname)) |
2055 | DIE("Can't call method \"%s\" without a package or object reference", name); |
67955e0c |
2056 | if (!(stash = gv_stashpvn(packname, packlen, FALSE))) { |
2057 | if (gv_stashpvn("UNIVERSAL", 9, FALSE)) |
2058 | stash = gv_stashpvn(packname, packlen, TRUE); |
a0d0e21e |
2059 | else |
2060 | DIE("Can't call method \"%s\" in empty package \"%s\"", |
2061 | name, packname); |
2062 | } |
2063 | gv = gv_fetchmethod(stash,name); |
2064 | if (!gv) |
2065 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2066 | name, packname); |
8ebc5c01 |
2067 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2068 | RETURN; |
2069 | } |
67955e0c |
2070 | *(stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e |
2071 | } |
2072 | |
2073 | if (!ob || !SvOBJECT(ob)) { |
2074 | char *name = SvPV(nm, na); |
2075 | DIE("Can't call method \"%s\" on unblessed reference", name); |
2076 | } |
2077 | |
2078 | if (!gv) { /* nothing cached */ |
2079 | char *name = SvPV(nm, na); |
2080 | gv = gv_fetchmethod(SvSTASH(ob),name); |
2081 | if (!gv) |
2082 | DIE("Can't locate object method \"%s\" via package \"%s\"", |
2083 | name, HvNAME(SvSTASH(ob))); |
2084 | } |
2085 | |
8ebc5c01 |
2086 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e |
2087 | RETURN; |
2088 | } |
2089 | |