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