Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
9607fc9c | 3 | * Copyright (c) 1991-1997, Larry Wall |
a0d0e21e LW |
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 | ||
8ac85365 NIS |
21 | #ifdef I_UNISTD |
22 | #include <unistd.h> | |
23 | #endif | |
9d116dd7 JH |
24 | #ifdef I_FCNTL |
25 | #include <fcntl.h> | |
26 | #endif | |
27 | #ifdef I_SYS_FILE | |
28 | #include <sys/file.h> | |
29 | #endif | |
8ac85365 | 30 | |
a0d0e21e LW |
31 | /* Hot code. */ |
32 | ||
11343788 MB |
33 | #ifdef USE_THREADS |
34 | static void | |
8ac85365 | 35 | unset_cvowner(void *cvarg) |
11343788 MB |
36 | { |
37 | register CV* cv = (CV *) cvarg; | |
38 | #ifdef DEBUGGING | |
39 | dTHR; | |
40 | #endif /* DEBUGGING */ | |
41 | ||
8b73bbec | 42 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
1fd28e87 | 43 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 | 44 | MUTEX_LOCK(CvMUTEXP(cv)); |
8b73bbec | 45 | DEBUG_S(if (CvDEPTH(cv) != 0) |
77a005ab MB |
46 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
47 | CvDEPTH(cv));); | |
11343788 MB |
48 | assert(thr == CvOWNER(cv)); |
49 | CvOWNER(cv) = 0; | |
11343788 MB |
50 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
51 | SvREFCNT_dec(cv); | |
52 | } | |
11343788 MB |
53 | #endif /* USE_THREADS */ |
54 | ||
a0d0e21e LW |
55 | PP(pp_const) |
56 | { | |
4e35701f | 57 | djSP; |
a0d0e21e LW |
58 | XPUSHs(cSVOP->op_sv); |
59 | RETURN; | |
60 | } | |
61 | ||
62 | PP(pp_nextstate) | |
63 | { | |
533c011a | 64 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 65 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 66 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
67 | FREETMPS; |
68 | return NORMAL; | |
69 | } | |
70 | ||
71 | PP(pp_gvsv) | |
72 | { | |
4e35701f | 73 | djSP; |
924508f0 | 74 | EXTEND(SP,1); |
533c011a | 75 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e LW |
76 | PUSHs(save_scalar(cGVOP->op_gv)); |
77 | else | |
78 | PUSHs(GvSV(cGVOP->op_gv)); | |
79 | RETURN; | |
80 | } | |
81 | ||
82 | PP(pp_null) | |
83 | { | |
84 | return NORMAL; | |
85 | } | |
86 | ||
87 | PP(pp_pushmark) | |
88 | { | |
3280af22 | 89 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
90 | return NORMAL; |
91 | } | |
92 | ||
93 | PP(pp_stringify) | |
94 | { | |
4e35701f | 95 | djSP; dTARGET; |
a0d0e21e LW |
96 | STRLEN len; |
97 | char *s; | |
98 | s = SvPV(TOPs,len); | |
99 | sv_setpvn(TARG,s,len); | |
100 | SETTARG; | |
101 | RETURN; | |
102 | } | |
103 | ||
104 | PP(pp_gv) | |
105 | { | |
4e35701f | 106 | djSP; |
a0d0e21e LW |
107 | XPUSHs((SV*)cGVOP->op_gv); |
108 | RETURN; | |
109 | } | |
110 | ||
111 | PP(pp_and) | |
112 | { | |
4e35701f | 113 | djSP; |
a0d0e21e LW |
114 | if (!SvTRUE(TOPs)) |
115 | RETURN; | |
116 | else { | |
117 | --SP; | |
118 | RETURNOP(cLOGOP->op_other); | |
119 | } | |
120 | } | |
121 | ||
122 | PP(pp_sassign) | |
123 | { | |
4e35701f | 124 | djSP; dPOPTOPssrl; |
748a9306 LW |
125 | MAGIC *mg; |
126 | ||
533c011a | 127 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
128 | SV *temp; |
129 | temp = left; left = right; right = temp; | |
130 | } | |
3280af22 | 131 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 132 | TAINT_NOT; |
54310121 | 133 | SvSetMagicSV(right, left); |
a0d0e21e LW |
134 | SETs(right); |
135 | RETURN; | |
136 | } | |
137 | ||
138 | PP(pp_cond_expr) | |
139 | { | |
4e35701f | 140 | djSP; |
a0d0e21e LW |
141 | if (SvTRUEx(POPs)) |
142 | RETURNOP(cCONDOP->op_true); | |
143 | else | |
144 | RETURNOP(cCONDOP->op_false); | |
145 | } | |
146 | ||
147 | PP(pp_unstack) | |
148 | { | |
149 | I32 oldsave; | |
150 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 151 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 152 | FREETMPS; |
3280af22 | 153 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
154 | LEAVE_SCOPE(oldsave); |
155 | return NORMAL; | |
156 | } | |
157 | ||
a0d0e21e LW |
158 | PP(pp_concat) |
159 | { | |
4e35701f | 160 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
161 | { |
162 | dPOPTOPssrl; | |
a0d0e21e LW |
163 | STRLEN len; |
164 | char *s; | |
165 | if (TARG != left) { | |
166 | s = SvPV(left,len); | |
167 | sv_setpvn(TARG,s,len); | |
168 | } | |
c07a80fd | 169 | else if (SvGMAGICAL(TARG)) |
170 | mg_get(TARG); | |
7a4c00b4 | 171 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 | 172 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 | 173 | s = SvPV_force(TARG, len); |
4633a7c4 | 174 | } |
a0d0e21e | 175 | s = SvPV(right,len); |
68dc0745 | 176 | if (SvOK(TARG)) |
177 | sv_catpvn(TARG,s,len); | |
178 | else | |
179 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
180 | SETTARG; |
181 | RETURN; | |
748a9306 | 182 | } |
a0d0e21e LW |
183 | } |
184 | ||
185 | PP(pp_padsv) | |
186 | { | |
4e35701f | 187 | djSP; dTARGET; |
a0d0e21e | 188 | XPUSHs(TARG); |
533c011a NIS |
189 | if (PL_op->op_flags & OPf_MOD) { |
190 | if (PL_op->op_private & OPpLVAL_INTRO) | |
191 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
192 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 193 | PUTBACK; |
533c011a | 194 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
195 | SPAGAIN; |
196 | } | |
4633a7c4 | 197 | } |
a0d0e21e LW |
198 | RETURN; |
199 | } | |
200 | ||
201 | PP(pp_readline) | |
202 | { | |
3280af22 | 203 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
a0d0e21e LW |
204 | return do_readline(); |
205 | } | |
206 | ||
207 | PP(pp_eq) | |
208 | { | |
4e35701f | 209 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
210 | { |
211 | dPOPnv; | |
54310121 | 212 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
213 | RETURN; |
214 | } | |
215 | } | |
216 | ||
217 | PP(pp_preinc) | |
218 | { | |
4e35701f | 219 | djSP; |
68dc0745 | 220 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
44a8e56a | 221 | croak(no_modify); |
55497cff | 222 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
223 | SvIVX(TOPs) != IV_MAX) | |
224 | { | |
748a9306 | 225 | ++SvIVX(TOPs); |
55497cff | 226 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
227 | } |
228 | else | |
229 | sv_inc(TOPs); | |
a0d0e21e LW |
230 | SvSETMAGIC(TOPs); |
231 | return NORMAL; | |
232 | } | |
233 | ||
234 | PP(pp_or) | |
235 | { | |
4e35701f | 236 | djSP; |
a0d0e21e LW |
237 | if (SvTRUE(TOPs)) |
238 | RETURN; | |
239 | else { | |
240 | --SP; | |
241 | RETURNOP(cLOGOP->op_other); | |
242 | } | |
243 | } | |
244 | ||
245 | PP(pp_add) | |
246 | { | |
4e35701f | 247 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 248 | { |
7a4c00b4 | 249 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
250 | SETn( left + right ); |
251 | RETURN; | |
252 | } | |
253 | } | |
254 | ||
255 | PP(pp_aelemfast) | |
256 | { | |
4e35701f | 257 | djSP; |
a0d0e21e | 258 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a NIS |
259 | U32 lval = PL_op->op_flags & OPf_MOD; |
260 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 261 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 262 | EXTEND(SP, 1); |
be6c24e0 GS |
263 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
264 | sv = sv_mortalcopy(sv); | |
265 | PUSHs(sv); | |
a0d0e21e LW |
266 | RETURN; |
267 | } | |
268 | ||
269 | PP(pp_join) | |
270 | { | |
4e35701f | 271 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
272 | MARK++; |
273 | do_join(TARG, *MARK, MARK, SP); | |
274 | SP = MARK; | |
275 | SETs(TARG); | |
276 | RETURN; | |
277 | } | |
278 | ||
279 | PP(pp_pushre) | |
280 | { | |
4e35701f | 281 | djSP; |
44a8e56a | 282 | #ifdef DEBUGGING |
283 | /* | |
284 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
285 | * will be enough to hold an OP*. | |
286 | */ | |
287 | SV* sv = sv_newmortal(); | |
288 | sv_upgrade(sv, SVt_PVLV); | |
289 | LvTYPE(sv) = '/'; | |
533c011a | 290 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 291 | XPUSHs(sv); |
292 | #else | |
6b88bc9c | 293 | XPUSHs((SV*)PL_op); |
44a8e56a | 294 | #endif |
a0d0e21e LW |
295 | RETURN; |
296 | } | |
297 | ||
298 | /* Oversized hot code. */ | |
299 | ||
300 | PP(pp_print) | |
301 | { | |
4e35701f | 302 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
303 | GV *gv; |
304 | IO *io; | |
760ac839 | 305 | register PerlIO *fp; |
236988e4 | 306 | MAGIC *mg; |
a0d0e21e | 307 | |
533c011a | 308 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
309 | gv = (GV*)*++MARK; |
310 | else | |
3280af22 | 311 | gv = PL_defoutgv; |
ece095e7 | 312 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 | 313 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
314 | /* If using default handle then we need to make space to |
315 | * pass object as 1st arg, so move other args up ... | |
316 | */ | |
4352c267 | 317 | MEXTEND(SP, 1); |
68dc0745 | 318 | ++MARK; |
319 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
320 | ++SP; | |
321 | } | |
322 | PUSHMARK(MARK - 1); | |
ece095e7 | 323 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 324 | PUTBACK; |
236988e4 | 325 | ENTER; |
326 | perl_call_method("PRINT", G_SCALAR); | |
327 | LEAVE; | |
328 | SPAGAIN; | |
68dc0745 | 329 | MARK = ORIGMARK + 1; |
330 | *MARK = *SP; | |
331 | SP = MARK; | |
236988e4 | 332 | RETURN; |
333 | } | |
a0d0e21e | 334 | if (!(io = GvIO(gv))) { |
3280af22 | 335 | if (PL_dowarn) { |
748a9306 | 336 | SV* sv = sv_newmortal(); |
4f732624 | 337 | gv_fullname3(sv, gv, Nullch); |
3280af22 | 338 | warn("Filehandle %s never opened", SvPV(sv,PL_na)); |
748a9306 LW |
339 | } |
340 | ||
341 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
342 | goto just_say_no; |
343 | } | |
344 | else if (!(fp = IoOFP(io))) { | |
3280af22 | 345 | if (PL_dowarn) { |
748a9306 | 346 | SV* sv = sv_newmortal(); |
4f732624 | 347 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e | 348 | if (IoIFP(io)) |
3280af22 | 349 | warn("Filehandle %s opened only for input", SvPV(sv,PL_na)); |
a0d0e21e | 350 | else |
3280af22 | 351 | warn("print on closed filehandle %s", SvPV(sv,PL_na)); |
a0d0e21e | 352 | } |
748a9306 | 353 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
354 | goto just_say_no; |
355 | } | |
356 | else { | |
357 | MARK++; | |
3280af22 | 358 | if (PL_ofslen) { |
a0d0e21e LW |
359 | while (MARK <= SP) { |
360 | if (!do_print(*MARK, fp)) | |
361 | break; | |
362 | MARK++; | |
363 | if (MARK <= SP) { | |
3280af22 | 364 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
365 | MARK--; |
366 | break; | |
367 | } | |
368 | } | |
369 | } | |
370 | } | |
371 | else { | |
372 | while (MARK <= SP) { | |
373 | if (!do_print(*MARK, fp)) | |
374 | break; | |
375 | MARK++; | |
376 | } | |
377 | } | |
378 | if (MARK <= SP) | |
379 | goto just_say_no; | |
380 | else { | |
3280af22 NIS |
381 | if (PL_orslen) |
382 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
383 | goto just_say_no; |
384 | ||
385 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 386 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
387 | goto just_say_no; |
388 | } | |
389 | } | |
390 | SP = ORIGMARK; | |
3280af22 | 391 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
392 | RETURN; |
393 | ||
394 | just_say_no: | |
395 | SP = ORIGMARK; | |
3280af22 | 396 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
397 | RETURN; |
398 | } | |
399 | ||
400 | PP(pp_rv2av) | |
401 | { | |
4e35701f | 402 | djSP; dPOPss; |
a0d0e21e LW |
403 | AV *av; |
404 | ||
405 | if (SvROK(sv)) { | |
406 | wasref: | |
407 | av = (AV*)SvRV(sv); | |
408 | if (SvTYPE(av) != SVt_PVAV) | |
409 | DIE("Not an ARRAY reference"); | |
533c011a | 410 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
411 | PUSHs((SV*)av); |
412 | RETURN; | |
413 | } | |
414 | } | |
415 | else { | |
416 | if (SvTYPE(sv) == SVt_PVAV) { | |
417 | av = (AV*)sv; | |
533c011a | 418 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
419 | PUSHs((SV*)av); |
420 | RETURN; | |
421 | } | |
422 | } | |
423 | else { | |
67955e0c | 424 | GV *gv; |
425 | ||
a0d0e21e | 426 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
427 | char *sym; |
428 | ||
a0d0e21e LW |
429 | if (SvGMAGICAL(sv)) { |
430 | mg_get(sv); | |
431 | if (SvROK(sv)) | |
432 | goto wasref; | |
433 | } | |
434 | if (!SvOK(sv)) { | |
533c011a NIS |
435 | if (PL_op->op_flags & OPf_REF || |
436 | PL_op->op_private & HINT_STRICT_REFS) | |
a0d0e21e | 437 | DIE(no_usym, "an ARRAY"); |
3280af22 | 438 | if (PL_dowarn) |
d83e6520 | 439 | warn(warn_uninit); |
4633a7c4 LW |
440 | if (GIMME == G_ARRAY) |
441 | RETURN; | |
a0d0e21e LW |
442 | RETPUSHUNDEF; |
443 | } | |
3280af22 | 444 | sym = SvPV(sv,PL_na); |
533c011a | 445 | if (PL_op->op_private & HINT_STRICT_REFS) |
748a9306 | 446 | DIE(no_symref, sym, "an ARRAY"); |
67955e0c | 447 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
448 | } else { | |
449 | gv = (GV*)sv; | |
a0d0e21e | 450 | } |
67955e0c | 451 | av = GvAVn(gv); |
533c011a | 452 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 453 | av = save_ary(gv); |
533c011a | 454 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
455 | PUSHs((SV*)av); |
456 | RETURN; | |
457 | } | |
458 | } | |
459 | } | |
460 | ||
461 | if (GIMME == G_ARRAY) { | |
462 | I32 maxarg = AvFILL(av) + 1; | |
93965878 NIS |
463 | EXTEND(SP, maxarg); |
464 | if (SvRMAGICAL(av)) { | |
465 | U32 i; | |
466 | for (i=0; i < maxarg; i++) { | |
467 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 468 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
469 | } |
470 | } | |
471 | else { | |
472 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
473 | } | |
a0d0e21e LW |
474 | SP += maxarg; |
475 | } | |
476 | else { | |
477 | dTARGET; | |
478 | I32 maxarg = AvFILL(av) + 1; | |
479 | PUSHi(maxarg); | |
480 | } | |
481 | RETURN; | |
482 | } | |
483 | ||
484 | PP(pp_rv2hv) | |
485 | { | |
4e35701f | 486 | djSP; dTOPss; |
a0d0e21e LW |
487 | HV *hv; |
488 | ||
489 | if (SvROK(sv)) { | |
490 | wasref: | |
491 | hv = (HV*)SvRV(sv); | |
c750a3ec | 492 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e | 493 | DIE("Not a HASH reference"); |
533c011a | 494 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
495 | SETs((SV*)hv); |
496 | RETURN; | |
497 | } | |
498 | } | |
499 | else { | |
c750a3ec | 500 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 501 | hv = (HV*)sv; |
533c011a | 502 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
503 | SETs((SV*)hv); |
504 | RETURN; | |
505 | } | |
506 | } | |
507 | else { | |
67955e0c | 508 | GV *gv; |
509 | ||
a0d0e21e | 510 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 LW |
511 | char *sym; |
512 | ||
a0d0e21e LW |
513 | if (SvGMAGICAL(sv)) { |
514 | mg_get(sv); | |
515 | if (SvROK(sv)) | |
516 | goto wasref; | |
517 | } | |
518 | if (!SvOK(sv)) { | |
533c011a NIS |
519 | if (PL_op->op_flags & OPf_REF || |
520 | PL_op->op_private & HINT_STRICT_REFS) | |
a0d0e21e | 521 | DIE(no_usym, "a HASH"); |
3280af22 | 522 | if (PL_dowarn) |
d83e6520 | 523 | warn(warn_uninit); |
4633a7c4 LW |
524 | if (GIMME == G_ARRAY) { |
525 | SP--; | |
526 | RETURN; | |
527 | } | |
a0d0e21e LW |
528 | RETSETUNDEF; |
529 | } | |
3280af22 | 530 | sym = SvPV(sv,PL_na); |
533c011a | 531 | if (PL_op->op_private & HINT_STRICT_REFS) |
748a9306 | 532 | DIE(no_symref, sym, "a HASH"); |
67955e0c | 533 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
534 | } else { | |
535 | gv = (GV*)sv; | |
a0d0e21e | 536 | } |
67955e0c | 537 | hv = GvHVn(gv); |
533c011a | 538 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 539 | hv = save_hash(gv); |
533c011a | 540 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
541 | SETs((SV*)hv); |
542 | RETURN; | |
543 | } | |
544 | } | |
545 | } | |
546 | ||
547 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 548 | *PL_stack_sp = (SV*)hv; |
a0d0e21e LW |
549 | return do_kv(ARGS); |
550 | } | |
551 | else { | |
552 | dTARGET; | |
4b154ab5 GA |
553 | if (SvTYPE(hv) == SVt_PVAV) |
554 | hv = avhv_keys((AV*)hv); | |
46fc3d4c | 555 | if (HvFILL(hv)) |
556 | sv_setpvf(TARG, "%ld/%ld", | |
557 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); | |
a0d0e21e LW |
558 | else |
559 | sv_setiv(TARG, 0); | |
c750a3ec | 560 | |
a0d0e21e LW |
561 | SETTARG; |
562 | RETURN; | |
563 | } | |
564 | } | |
565 | ||
566 | PP(pp_aassign) | |
567 | { | |
4e35701f | 568 | djSP; |
3280af22 NIS |
569 | SV **lastlelem = PL_stack_sp; |
570 | SV **lastrelem = PL_stack_base + POPMARK; | |
571 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
572 | SV **firstlelem = lastrelem + 1; |
573 | ||
574 | register SV **relem; | |
575 | register SV **lelem; | |
576 | ||
577 | register SV *sv; | |
578 | register AV *ary; | |
579 | ||
54310121 | 580 | I32 gimme; |
a0d0e21e LW |
581 | HV *hash; |
582 | I32 i; | |
583 | int magic; | |
584 | ||
3280af22 | 585 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
586 | |
587 | /* If there's a common identifier on both sides we have to take | |
588 | * special care that assigning the identifier on the left doesn't | |
589 | * clobber a value on the right that's used later in the list. | |
590 | */ | |
533c011a | 591 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
a0d0e21e LW |
592 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
593 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
594 | if (sv = *relem) { |
595 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 596 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 597 | } |
a0d0e21e LW |
598 | } |
599 | } | |
600 | ||
601 | relem = firstrelem; | |
602 | lelem = firstlelem; | |
603 | ary = Null(AV*); | |
604 | hash = Null(HV*); | |
605 | while (lelem <= lastlelem) { | |
bbce6d69 | 606 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
607 | sv = *lelem++; |
608 | switch (SvTYPE(sv)) { | |
609 | case SVt_PVAV: | |
610 | ary = (AV*)sv; | |
748a9306 | 611 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
612 | |
613 | av_clear(ary); | |
7e42bd57 | 614 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
615 | i = 0; |
616 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 617 | SV **didstore; |
a0d0e21e LW |
618 | sv = NEWSV(28,0); |
619 | assert(*relem); | |
620 | sv_setsv(sv,*relem); | |
621 | *(relem++) = sv; | |
5117ca91 GS |
622 | didstore = av_store(ary,i++,sv); |
623 | if (magic) { | |
fb73857a | 624 | if (SvSMAGICAL(sv)) |
625 | mg_set(sv); | |
5117ca91 GS |
626 | if (!didstore) |
627 | SvREFCNT_dec(sv); | |
628 | } | |
bbce6d69 | 629 | TAINT_NOT; |
a0d0e21e LW |
630 | } |
631 | break; | |
632 | case SVt_PVHV: { | |
a0d0e21e LW |
633 | SV *tmpstr; |
634 | ||
635 | hash = (HV*)sv; | |
748a9306 | 636 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
637 | hv_clear(hash); |
638 | ||
639 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 640 | HE *didstore; |
4633a7c4 | 641 | if (*relem) |
a0d0e21e | 642 | sv = *(relem++); |
4633a7c4 | 643 | else |
3280af22 | 644 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
645 | tmpstr = NEWSV(29,0); |
646 | if (*relem) | |
647 | sv_setsv(tmpstr,*relem); /* value */ | |
648 | *(relem++) = tmpstr; | |
5117ca91 GS |
649 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
650 | if (magic) { | |
fb73857a | 651 | if (SvSMAGICAL(tmpstr)) |
652 | mg_set(tmpstr); | |
5117ca91 GS |
653 | if (!didstore) |
654 | SvREFCNT_dec(tmpstr); | |
655 | } | |
bbce6d69 | 656 | TAINT_NOT; |
8e07c86e | 657 | } |
6a0deba8 GS |
658 | if (relem == lastrelem) { |
659 | if (*relem) { | |
660 | HE *didstore; | |
3280af22 | 661 | if (PL_dowarn) { |
6a0deba8 GS |
662 | if (relem == firstrelem && |
663 | SvROK(*relem) && | |
664 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
665 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) | |
666 | warn("Reference found where even-sized list expected"); | |
667 | else | |
668 | warn("Odd number of elements in hash assignment"); | |
669 | } | |
670 | tmpstr = NEWSV(29,0); | |
671 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
672 | if (magic) { | |
673 | if (SvSMAGICAL(tmpstr)) | |
674 | mg_set(tmpstr); | |
675 | if (!didstore) | |
676 | SvREFCNT_dec(tmpstr); | |
677 | } | |
678 | TAINT_NOT; | |
679 | } | |
680 | relem++; | |
1930e939 | 681 | } |
a0d0e21e LW |
682 | } |
683 | break; | |
684 | default: | |
685 | if (SvTHINKFIRST(sv)) { | |
3280af22 | 686 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) { |
d689ffdd | 687 | if (!SvIMMORTAL(sv)) |
a0d0e21e LW |
688 | DIE(no_modify); |
689 | if (relem <= lastrelem) | |
690 | relem++; | |
691 | break; | |
692 | } | |
693 | if (SvROK(sv)) | |
694 | sv_unref(sv); | |
695 | } | |
696 | if (relem <= lastrelem) { | |
697 | sv_setsv(sv, *relem); | |
698 | *(relem++) = sv; | |
699 | } | |
700 | else | |
3280af22 | 701 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
702 | SvSETMAGIC(sv); |
703 | break; | |
704 | } | |
705 | } | |
3280af22 NIS |
706 | if (PL_delaymagic & ~DM_DELAY) { |
707 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 708 | #ifdef HAS_SETRESUID |
b28d0864 | 709 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
710 | #else |
711 | # ifdef HAS_SETREUID | |
3280af22 | 712 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
713 | # else |
714 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
715 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
716 | (void)setruid(PL_uid); | |
717 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 718 | } |
56febc5e AD |
719 | # endif /* HAS_SETRUID */ |
720 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
721 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
722 | (void)seteuid(PL_uid); | |
723 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 724 | } |
56febc5e | 725 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
726 | if (PL_delaymagic & DM_UID) { |
727 | if (PL_uid != PL_euid) | |
a0d0e21e | 728 | DIE("No setreuid available"); |
b28d0864 | 729 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 730 | } |
56febc5e AD |
731 | # endif /* HAS_SETREUID */ |
732 | #endif /* HAS_SETRESUID */ | |
3280af22 NIS |
733 | PL_uid = (int)PerlProc_getuid(); |
734 | PL_euid = (int)PerlProc_geteuid(); | |
a0d0e21e | 735 | } |
3280af22 | 736 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 737 | #ifdef HAS_SETRESGID |
b28d0864 | 738 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
739 | #else |
740 | # ifdef HAS_SETREGID | |
3280af22 | 741 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
742 | # else |
743 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
744 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
745 | (void)setrgid(PL_gid); | |
746 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 747 | } |
56febc5e AD |
748 | # endif /* HAS_SETRGID */ |
749 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
750 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
751 | (void)setegid(PL_gid); | |
752 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 753 | } |
56febc5e | 754 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
755 | if (PL_delaymagic & DM_GID) { |
756 | if (PL_gid != PL_egid) | |
a0d0e21e | 757 | DIE("No setregid available"); |
b28d0864 | 758 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 759 | } |
56febc5e AD |
760 | # endif /* HAS_SETREGID */ |
761 | #endif /* HAS_SETRESGID */ | |
3280af22 NIS |
762 | PL_gid = (int)PerlProc_getgid(); |
763 | PL_egid = (int)PerlProc_getegid(); | |
a0d0e21e | 764 | } |
3280af22 | 765 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 766 | } |
3280af22 | 767 | PL_delaymagic = 0; |
54310121 | 768 | |
769 | gimme = GIMME_V; | |
770 | if (gimme == G_VOID) | |
771 | SP = firstrelem - 1; | |
772 | else if (gimme == G_SCALAR) { | |
773 | dTARGET; | |
774 | SP = firstrelem; | |
775 | SETi(lastrelem - firstrelem + 1); | |
776 | } | |
777 | else { | |
a0d0e21e LW |
778 | if (ary || hash) |
779 | SP = lastrelem; | |
780 | else | |
781 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 782 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 783 | while (relem <= SP) |
3280af22 | 784 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 785 | } |
54310121 | 786 | RETURN; |
a0d0e21e LW |
787 | } |
788 | ||
8782bef2 GB |
789 | PP(pp_qr) |
790 | { | |
791 | djSP; | |
792 | register PMOP *pm = cPMOP; | |
793 | SV *rv = sv_newmortal(); | |
794 | SV *sv = newSVrv(rv, "Regexp"); | |
795 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); | |
796 | RETURNX(PUSHs(rv)); | |
797 | } | |
798 | ||
a0d0e21e LW |
799 | PP(pp_match) |
800 | { | |
4e35701f | 801 | djSP; dTARG; |
a0d0e21e LW |
802 | register PMOP *pm = cPMOP; |
803 | register char *t; | |
804 | register char *s; | |
805 | char *strend; | |
806 | I32 global; | |
807 | I32 safebase; | |
808 | char *truebase; | |
d9f97599 | 809 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 810 | bool rxtainted; |
a0d0e21e LW |
811 | I32 gimme = GIMME; |
812 | STRLEN len; | |
748a9306 | 813 | I32 minmatch = 0; |
3280af22 | 814 | I32 oldsave = PL_savestack_ix; |
f86702cc | 815 | I32 update_minmatch = 1; |
c277df42 | 816 | SV *screamer; |
a0d0e21e | 817 | |
533c011a | 818 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
819 | TARG = POPs; |
820 | else { | |
54b9620d | 821 | TARG = DEFSV; |
a0d0e21e LW |
822 | EXTEND(SP,1); |
823 | } | |
c277df42 | 824 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
825 | s = SvPV(TARG, len); |
826 | strend = s + len; | |
827 | if (!s) | |
828 | DIE("panic: do_match"); | |
b3eb6a9b | 829 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 830 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 831 | TAINT_NOT; |
a0d0e21e | 832 | |
48c036b1 | 833 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 834 | failure: |
a0d0e21e LW |
835 | if (gimme == G_ARRAY) |
836 | RETURN; | |
837 | RETPUSHNO; | |
838 | } | |
839 | ||
3280af22 NIS |
840 | if (!rx->prelen && PL_curpm) { |
841 | pm = PL_curpm; | |
d9f97599 | 842 | rx = pm->op_pmregexp; |
a0d0e21e | 843 | } |
d9f97599 | 844 | if (rx->minlen > len) goto failure; |
c277df42 | 845 | |
d9f97599 GS |
846 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
847 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
848 | && SvVALID(rx->check_substr)) | |
c277df42 | 849 | ? TARG : Nullsv); |
a0d0e21e LW |
850 | truebase = t = s; |
851 | if (global = pm->op_pmflags & PMf_GLOBAL) { | |
d9f97599 | 852 | rx->startp[0] = 0; |
a0d0e21e LW |
853 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
854 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 855 | if (mg && mg->mg_len >= 0) { |
d9f97599 | 856 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; |
748a9306 | 857 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 858 | update_minmatch = 0; |
748a9306 | 859 | } |
a0d0e21e LW |
860 | } |
861 | } | |
a575ca2f GB |
862 | safebase = ((gimme != G_ARRAY && !global && rx->nparens) |
863 | || SvTEMP(TARG) || PL_sawampersand) | |
864 | ? REXEC_COPY_STR : 0; | |
a0d0e21e | 865 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
866 | SAVEINT(PL_multiline); |
867 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
868 | } |
869 | ||
870 | play_it_again: | |
d9f97599 GS |
871 | if (global && rx->startp[0]) { |
872 | t = s = rx->endp[0]; | |
873 | if ((s + rx->minlen) > strend) | |
a0d0e21e | 874 | goto nope; |
f86702cc | 875 | if (update_minmatch++) |
d9f97599 | 876 | minmatch = (s == rx->startp[0]); |
a0d0e21e | 877 | } |
d9f97599 GS |
878 | if (rx->check_substr) { |
879 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ | |
c277df42 IZ |
880 | if ( screamer ) { |
881 | I32 p = -1; | |
882 | ||
3280af22 | 883 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e | 884 | goto nope; |
d9f97599 GS |
885 | else if (!(s = screaminstr(TARG, rx->check_substr, |
886 | rx->check_offset_min, 0, &p, 0))) | |
a0d0e21e | 887 | goto nope; |
d9f97599 | 888 | else if ((rx->reganch & ROPT_CHECK_ALL) |
3280af22 | 889 | && !PL_sawampersand && !SvTAIL(rx->check_substr)) |
a0d0e21e LW |
890 | goto yup; |
891 | } | |
d9f97599 | 892 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 | 893 | (unsigned char*)strend, |
411d5715 | 894 | rx->check_substr, 0))) |
a0d0e21e | 895 | goto nope; |
3280af22 | 896 | else if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand) |
a0d0e21e | 897 | goto yup; |
ee027f1d | 898 | if (s && rx->check_offset_max < s - t) { |
d9f97599 GS |
899 | ++BmUSEFUL(rx->check_substr); |
900 | s -= rx->check_offset_max; | |
a0d0e21e LW |
901 | } |
902 | else | |
903 | s = t; | |
904 | } | |
c277df42 IZ |
905 | /* Now checkstring is fixed, i.e. at fixed offset from the |
906 | beginning of match, and the match is anchored at s. */ | |
3280af22 | 907 | else if (!PL_multiline) { /* Anchored near beginning of string. */ |
c277df42 | 908 | I32 slen; |
d9f97599 GS |
909 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
910 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
911 | && memNE(SvPVX(rx->check_substr), | |
912 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 913 | goto nope; |
a0d0e21e | 914 | } |
d9f97599 GS |
915 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
916 | && rx->check_substr == rx->float_substr) { | |
917 | SvREFCNT_dec(rx->check_substr); | |
918 | rx->check_substr = Nullsv; /* opt is being useless */ | |
919 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
920 | } |
921 | } | |
15e52e56 | 922 | if (CALLREGEXEC(rx, s, strend, truebase, minmatch, |
c277df42 | 923 | screamer, NULL, safebase)) |
bbce6d69 | 924 | { |
3280af22 | 925 | PL_curpm = pm; |
a0d0e21e | 926 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 927 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
928 | goto gotcha; |
929 | } | |
930 | else | |
931 | goto ret_no; | |
932 | /*NOTREACHED*/ | |
933 | ||
934 | gotcha: | |
72311751 GS |
935 | if (rxtainted) |
936 | RX_MATCH_TAINTED_on(rx); | |
937 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
938 | if (gimme == G_ARRAY) { |
939 | I32 iters, i, len; | |
940 | ||
d9f97599 | 941 | iters = rx->nparens; |
a0d0e21e LW |
942 | if (global && !iters) |
943 | i = 1; | |
944 | else | |
945 | i = 0; | |
c277df42 | 946 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 947 | EXTEND(SP, iters + i); |
bbce6d69 | 948 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
949 | for (i = !i; i <= iters; i++) { |
950 | PUSHs(sv_newmortal()); | |
951 | /*SUPPRESS 560*/ | |
d9f97599 GS |
952 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
953 | len = rx->endp[i] - s; | |
a0d0e21e LW |
954 | sv_setpvn(*SP, s, len); |
955 | } | |
956 | } | |
957 | if (global) { | |
d9f97599 GS |
958 | truebase = rx->subbeg; |
959 | strend = rx->subend; | |
960 | if (rx->startp[0] && rx->startp[0] == rx->endp[0]) | |
961 | ++rx->endp[0]; | |
c277df42 | 962 | PUTBACK; /* EVAL blocks may use stack */ |
a0d0e21e LW |
963 | goto play_it_again; |
964 | } | |
f7e33566 | 965 | else if (!iters) |
bde848c5 | 966 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 967 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
968 | RETURN; |
969 | } | |
970 | else { | |
971 | if (global) { | |
972 | MAGIC* mg = 0; | |
973 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
974 | mg = mg_find(TARG, 'g'); | |
975 | if (!mg) { | |
976 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
977 | mg = mg_find(TARG, 'g'); | |
978 | } | |
d9f97599 GS |
979 | if (rx->startp[0]) { |
980 | mg->mg_len = rx->endp[0] - rx->subbeg; | |
981 | if (rx->startp[0] == rx->endp[0]) | |
748a9306 LW |
982 | mg->mg_flags |= MGf_MINMATCH; |
983 | else | |
984 | mg->mg_flags &= ~MGf_MINMATCH; | |
985 | } | |
a0d0e21e | 986 | } |
4633a7c4 | 987 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
988 | RETPUSHYES; |
989 | } | |
990 | ||
c277df42 | 991 | yup: /* Confirmed by check_substr */ |
72311751 GS |
992 | if (rxtainted) |
993 | RX_MATCH_TAINTED_on(rx); | |
994 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
d9f97599 | 995 | ++BmUSEFUL(rx->check_substr); |
3280af22 | 996 | PL_curpm = pm; |
a0d0e21e | 997 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 998 | pm->op_pmdynflags |= PMdf_USED; |
d9f97599 GS |
999 | Safefree(rx->subbase); |
1000 | rx->subbase = Nullch; | |
a0d0e21e | 1001 | if (global) { |
d9f97599 GS |
1002 | rx->subbeg = truebase; |
1003 | rx->subend = strend; | |
1004 | rx->startp[0] = s; | |
1005 | rx->endp[0] = s + SvCUR(rx->check_substr); | |
a0d0e21e LW |
1006 | goto gotcha; |
1007 | } | |
3280af22 | 1008 | if (PL_sawampersand) { |
a0d0e21e LW |
1009 | char *tmps; |
1010 | ||
d9f97599 GS |
1011 | tmps = rx->subbase = savepvn(t, strend-t); |
1012 | rx->subbeg = tmps; | |
1013 | rx->subend = tmps + (strend-t); | |
1014 | tmps = rx->startp[0] = tmps + (s - t); | |
1015 | rx->endp[0] = tmps + SvCUR(rx->check_substr); | |
a0d0e21e | 1016 | } |
4633a7c4 | 1017 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1018 | RETPUSHYES; |
1019 | ||
1020 | nope: | |
d9f97599 GS |
1021 | if (rx->check_substr) |
1022 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
1023 | |
1024 | ret_no: | |
c90c0ff4 | 1025 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1026 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1027 | MAGIC* mg = mg_find(TARG, 'g'); | |
1028 | if (mg) | |
565764a8 | 1029 | mg->mg_len = -1; |
a0d0e21e LW |
1030 | } |
1031 | } | |
4633a7c4 | 1032 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1033 | if (gimme == G_ARRAY) |
1034 | RETURN; | |
1035 | RETPUSHNO; | |
1036 | } | |
1037 | ||
1038 | OP * | |
8ac85365 | 1039 | do_readline(void) |
a0d0e21e LW |
1040 | { |
1041 | dSP; dTARGETSTACKED; | |
1042 | register SV *sv; | |
1043 | STRLEN tmplen = 0; | |
1044 | STRLEN offset; | |
760ac839 | 1045 | PerlIO *fp; |
3280af22 | 1046 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1047 | register I32 type = PL_op->op_type; |
54310121 | 1048 | I32 gimme = GIMME_V; |
e79b0511 | 1049 | MAGIC *mg; |
a0d0e21e | 1050 | |
ece095e7 | 1051 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 | 1052 | PUSHMARK(SP); |
ece095e7 | 1053 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1054 | PUTBACK; |
1055 | ENTER; | |
54310121 | 1056 | perl_call_method("READLINE", gimme); |
e79b0511 | 1057 | LEAVE; |
1058 | SPAGAIN; | |
54310121 | 1059 | if (gimme == G_SCALAR) |
1060 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1061 | RETURN; |
1062 | } | |
a0d0e21e LW |
1063 | fp = Nullfp; |
1064 | if (io) { | |
1065 | fp = IoIFP(io); | |
1066 | if (!fp) { | |
1067 | if (IoFLAGS(io) & IOf_ARGV) { | |
1068 | if (IoFLAGS(io) & IOf_START) { | |
1069 | IoFLAGS(io) &= ~IOf_START; | |
1070 | IoLINES(io) = 0; | |
3280af22 | 1071 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 | 1072 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1073 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1074 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1075 | fp = IoIFP(io); |
1076 | goto have_fp; | |
a0d0e21e LW |
1077 | } |
1078 | } | |
3280af22 | 1079 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1080 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1081 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1082 | IoFLAGS(io) |= IOf_START; |
1083 | } | |
1084 | } | |
1085 | else if (type == OP_GLOB) { | |
1086 | SV *tmpcmd = NEWSV(55, 0); | |
1087 | SV *tmpglob = POPs; | |
1088 | ENTER; | |
1089 | SAVEFREESV(tmpcmd); | |
1090 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1091 | /* since spawning off a process is a real performance hit */ | |
1092 | { | |
1093 | #include <descrip.h> | |
1094 | #include <lib$routines.h> | |
1095 | #include <nam.h> | |
1096 | #include <rmsdef.h> | |
1097 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1098 | char vmsspec[NAM$C_MAXRSS+1]; | |
1099 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1100 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1101 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1102 | PerlIO *tmpfp; |
a0d0e21e LW |
1103 | STRLEN i; |
1104 | struct dsc$descriptor_s wilddsc | |
1105 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1106 | struct dsc$descriptor_vs rsdsc | |
1107 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1108 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1109 | ||
1110 | /* We could find out if there's an explicit dev/dir or version | |
1111 | by peeking into lib$find_file's internal context at | |
1112 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1113 | but that's unsupported, so I don't want to do it now and | |
1114 | have it bite someone in the future. */ | |
6ad3d225 | 1115 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1116 | cp = SvPV(tmpglob,i); |
1117 | for (; i; i--) { | |
1118 | if (cp[i] == ';') hasver = 1; | |
1119 | if (cp[i] == '.') { | |
1120 | if (sts) hasver = 1; | |
1121 | else sts = 1; | |
1122 | } | |
1123 | if (cp[i] == '/') { | |
1124 | hasdir = isunix = 1; | |
1125 | break; | |
748a9306 | 1126 | } |
a0d0e21e LW |
1127 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1128 | hasdir = 1; | |
1129 | break; | |
1130 | } | |
1131 | } | |
760ac839 | 1132 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1133 | Stat_t st; |
c6ed36e1 | 1134 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1135 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1136 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1137 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1138 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1139 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1140 | end = rstr + (unsigned long int) *rslt; | |
1141 | if (!hasver) while (*end != ';') end--; | |
1142 | *(end++) = '\n'; *end = '\0'; | |
1143 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1144 | if (hasdir) { | |
f86702cc | 1145 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1146 | begin = rstr; |
1147 | } | |
1148 | else { | |
1149 | begin = end; | |
1150 | while (*(--begin) != ']' && *begin != '>') ; | |
1151 | ++begin; | |
1152 | } | |
760ac839 | 1153 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1154 | } |
1155 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1156 | if (ok && sts != RMS$_NMF && |
1157 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1158 | if (!ok) { |
c07a80fd | 1159 | if (!(sts & 1)) { |
1160 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1161 | } | |
760ac839 | 1162 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1163 | fp = NULL; |
1164 | } | |
1165 | else { | |
760ac839 | 1166 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1167 | IoTYPE(io) = '<'; |
1168 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1169 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1170 | } |
1171 | } | |
1172 | } | |
1173 | #else /* !VMS */ | |
1174 | #ifdef DOSISH | |
67955e0c | 1175 | #ifdef OS2 |
1176 | sv_setpv(tmpcmd, "for a in "); | |
1177 | sv_catsv(tmpcmd, tmpglob); | |
1178 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1179 | #else | |
39e571d4 LM |
1180 | #ifdef DJGPP |
1181 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1182 | sv_catsv(tmpcmd, tmpglob); | |
1183 | #else | |
a0d0e21e LW |
1184 | sv_setpv(tmpcmd, "perlglob "); |
1185 | sv_catsv(tmpcmd, tmpglob); | |
1186 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1187 | #endif /* !DJGPP */ |
67955e0c | 1188 | #endif /* !OS2 */ |
1189 | #else /* !DOSISH */ | |
1190 | #if defined(CSH) | |
3280af22 | 1191 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1192 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1193 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1194 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1195 | #else |
1196 | sv_setpv(tmpcmd, "echo "); | |
1197 | sv_catsv(tmpcmd, tmpglob); | |
1198 | #if 'z' - 'a' == 25 | |
1199 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1200 | #else | |
1201 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1202 | #endif | |
1203 | #endif /* !CSH */ | |
67955e0c | 1204 | #endif /* !DOSISH */ |
3280af22 | 1205 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1206 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1207 | fp = IoIFP(io); |
1208 | #endif /* !VMS */ | |
1209 | LEAVE; | |
1210 | } | |
1211 | } | |
1212 | else if (type == OP_GLOB) | |
1213 | SP--; | |
1214 | } | |
1215 | if (!fp) { | |
3280af22 NIS |
1216 | if (PL_dowarn && io && !(IoFLAGS(io) & IOf_START)) |
1217 | warn("Read on closed filehandle <%s>", GvENAME(PL_last_in_gv)); | |
54310121 | 1218 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1219 | (void)SvOK_off(TARG); |
1220 | PUSHTARG; | |
1221 | } | |
1222 | RETURN; | |
1223 | } | |
a2008d6d | 1224 | have_fp: |
54310121 | 1225 | if (gimme == G_SCALAR) { |
a0d0e21e | 1226 | sv = TARG; |
9607fc9c | 1227 | if (SvROK(sv)) |
1228 | sv_unref(sv); | |
a0d0e21e LW |
1229 | (void)SvUPGRADE(sv, SVt_PV); |
1230 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1231 | if (!tmplen) | |
1232 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1233 | if (type == OP_RCATLINE) | |
1234 | offset = SvCUR(sv); | |
1235 | else | |
1236 | offset = 0; | |
1237 | } | |
54310121 | 1238 | else { |
1239 | sv = sv_2mortal(NEWSV(57, 80)); | |
1240 | offset = 0; | |
1241 | } | |
a0d0e21e LW |
1242 | for (;;) { |
1243 | if (!sv_gets(sv, fp, offset)) { | |
760ac839 | 1244 | PerlIO_clearerr(fp); |
a0d0e21e | 1245 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1246 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1247 | if (fp) |
1248 | continue; | |
3280af22 | 1249 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1250 | IoFLAGS(io) |= IOf_START; |
1251 | } | |
1252 | else if (type == OP_GLOB) { | |
82e25445 GB |
1253 | if (!do_close(PL_last_in_gv, FALSE)) { |
1254 | warn("glob failed (child exited with status %d%s)", | |
1255 | STATUS_CURRENT >> 8, | |
1256 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); | |
1257 | } | |
a0d0e21e | 1258 | } |
54310121 | 1259 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1260 | (void)SvOK_off(TARG); |
1261 | PUSHTARG; | |
1262 | } | |
1263 | RETURN; | |
1264 | } | |
bbce6d69 | 1265 | /* This should not be marked tainted if the fp is marked clean */ |
1266 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1267 | TAINT; | |
1268 | SvTAINTED_on(sv); | |
1269 | } | |
a0d0e21e | 1270 | IoLINES(io)++; |
71be2cbc | 1271 | SvSETMAGIC(sv); |
a0d0e21e | 1272 | XPUSHs(sv); |
a0d0e21e LW |
1273 | if (type == OP_GLOB) { |
1274 | char *tmps; | |
1275 | ||
3280af22 | 1276 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1277 | tmps = SvEND(sv) - 1; |
3280af22 | 1278 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1279 | *tmps = '\0'; |
1280 | SvCUR(sv)--; | |
1281 | } | |
1282 | } | |
a0d0e21e LW |
1283 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1284 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1285 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1286 | break; | |
3280af22 | 1287 | if (*tmps && PerlLIO_stat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1288 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1289 | continue; | |
1290 | } | |
1291 | } | |
54310121 | 1292 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1293 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1294 | SvLEN_set(sv, SvCUR(sv)+1); | |
1295 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1296 | } | |
1297 | sv = sv_2mortal(NEWSV(58, 80)); | |
1298 | continue; | |
1299 | } | |
54310121 | 1300 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1301 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1302 | if (SvCUR(sv) < 60) | |
1303 | SvLEN_set(sv, 80); | |
1304 | else | |
1305 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1306 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1307 | } | |
1308 | RETURN; | |
1309 | } | |
1310 | } | |
1311 | ||
1312 | PP(pp_enter) | |
1313 | { | |
4e35701f | 1314 | djSP; |
c09156bb | 1315 | register PERL_CONTEXT *cx; |
533c011a | 1316 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1317 | |
54310121 | 1318 | if (gimme == -1) { |
1319 | if (cxstack_ix >= 0) | |
1320 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1321 | else | |
1322 | gimme = G_SCALAR; | |
1323 | } | |
a0d0e21e LW |
1324 | |
1325 | ENTER; | |
1326 | ||
1327 | SAVETMPS; | |
924508f0 | 1328 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1329 | |
1330 | RETURN; | |
1331 | } | |
1332 | ||
1333 | PP(pp_helem) | |
1334 | { | |
4e35701f | 1335 | djSP; |
760ac839 | 1336 | HE* he; |
ae77835f | 1337 | SV **svp; |
a0d0e21e | 1338 | SV *keysv = POPs; |
a0d0e21e | 1339 | HV *hv = (HV*)POPs; |
533c011a NIS |
1340 | U32 lval = PL_op->op_flags & OPf_MOD; |
1341 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1342 | SV *sv; |
a0d0e21e | 1343 | |
ae77835f MB |
1344 | if (SvTYPE(hv) == SVt_PVHV) { |
1345 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1346 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1347 | } |
1348 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 SM |
1349 | if (PL_op->op_private & OPpLVAL_INTRO) |
1350 | DIE("Can't localize pseudo-hash element"); | |
97fcbf96 | 1351 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1352 | } |
c750a3ec | 1353 | else { |
a0d0e21e | 1354 | RETPUSHUNDEF; |
c750a3ec | 1355 | } |
a0d0e21e | 1356 | if (lval) { |
3280af22 | 1357 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1358 | SV* lv; |
1359 | SV* key2; | |
1360 | if (!defer) | |
3280af22 | 1361 | DIE(no_helem, SvPV(keysv, PL_na)); |
68dc0745 | 1362 | lv = sv_newmortal(); |
1363 | sv_upgrade(lv, SVt_PVLV); | |
1364 | LvTYPE(lv) = 'y'; | |
1365 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1366 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1367 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1368 | LvTARGLEN(lv) = 1; | |
1369 | PUSHs(lv); | |
1370 | RETURN; | |
1371 | } | |
533c011a | 1372 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1373 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1374 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1375 | else |
161b7d16 | 1376 | save_helem(hv, keysv, svp); |
5f05dabc | 1377 | } |
533c011a NIS |
1378 | else if (PL_op->op_private & OPpDEREF) |
1379 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1380 | } |
3280af22 | 1381 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1382 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1383 | * Pushing the magical RHS on to the stack is useless, since | |
1384 | * that magic is soon destined to be misled by the local(), | |
1385 | * and thus the later pp_sassign() will fail to mg_get() the | |
1386 | * old value. This should also cure problems with delayed | |
1387 | * mg_get()s. GSAR 98-07-03 */ | |
1388 | if (!lval && SvGMAGICAL(sv)) | |
1389 | sv = sv_mortalcopy(sv); | |
1390 | PUSHs(sv); | |
a0d0e21e LW |
1391 | RETURN; |
1392 | } | |
1393 | ||
1394 | PP(pp_leave) | |
1395 | { | |
4e35701f | 1396 | djSP; |
c09156bb | 1397 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1398 | register SV **mark; |
1399 | SV **newsp; | |
1400 | PMOP *newpm; | |
1401 | I32 gimme; | |
1402 | ||
533c011a | 1403 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1404 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1405 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1406 | } |
1407 | ||
1408 | POPBLOCK(cx,newpm); | |
1409 | ||
533c011a | 1410 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1411 | if (gimme == -1) { |
1412 | if (cxstack_ix >= 0) | |
1413 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1414 | else | |
1415 | gimme = G_SCALAR; | |
1416 | } | |
a0d0e21e | 1417 | |
a1f49e72 | 1418 | TAINT_NOT; |
54310121 | 1419 | if (gimme == G_VOID) |
1420 | SP = newsp; | |
1421 | else if (gimme == G_SCALAR) { | |
1422 | MARK = newsp + 1; | |
1423 | if (MARK <= SP) | |
1424 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1425 | *MARK = TOPs; | |
1426 | else | |
1427 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1428 | else { |
54310121 | 1429 | MEXTEND(mark,0); |
3280af22 | 1430 | *MARK = &PL_sv_undef; |
a0d0e21e | 1431 | } |
54310121 | 1432 | SP = MARK; |
a0d0e21e | 1433 | } |
54310121 | 1434 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1435 | /* in case LEAVE wipes old return values */ |
1436 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1437 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1438 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1439 | TAINT_NOT; /* Each item is independent */ |
1440 | } | |
1441 | } | |
a0d0e21e | 1442 | } |
3280af22 | 1443 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1444 | |
1445 | LEAVE; | |
1446 | ||
1447 | RETURN; | |
1448 | } | |
1449 | ||
1450 | PP(pp_iter) | |
1451 | { | |
4e35701f | 1452 | djSP; |
c09156bb | 1453 | register PERL_CONTEXT *cx; |
5f05dabc | 1454 | SV* sv; |
4633a7c4 | 1455 | AV* av; |
a0d0e21e | 1456 | |
924508f0 | 1457 | EXTEND(SP, 1); |
a0d0e21e | 1458 | cx = &cxstack[cxstack_ix]; |
4e43f39e | 1459 | if (CxTYPE(cx) != CXt_LOOP) |
a0d0e21e LW |
1460 | DIE("panic: pp_iter"); |
1461 | ||
4633a7c4 | 1462 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1463 | if (SvTYPE(av) != SVt_PVAV) { |
1464 | /* iterate ($min .. $max) */ | |
1465 | if (cx->blk_loop.iterlval) { | |
1466 | /* string increment */ | |
1467 | register SV* cur = cx->blk_loop.iterlval; | |
1468 | STRLEN maxlen; | |
1469 | char *max = SvPV((SV*)av, maxlen); | |
1470 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1471 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1472 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1473 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1474 | { | |
eaa5c2d6 GA |
1475 | /* safe to reuse old SV */ |
1476 | sv_setsv(*cx->blk_loop.itervar, cur); | |
1477 | } | |
1478 | else | |
1479 | #endif | |
1480 | { | |
1481 | /* we need a fresh SV every time so that loop body sees a | |
1482 | * completely new SV for closures/references to work as | |
1483 | * they used to */ | |
1484 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1485 | *cx->blk_loop.itervar = newSVsv(cur); | |
1486 | } | |
89ea2908 GA |
1487 | if (strEQ(SvPVX(cur), max)) |
1488 | sv_setiv(cur, 0); /* terminate next time */ | |
1489 | else | |
1490 | sv_inc(cur); | |
1491 | RETPUSHYES; | |
1492 | } | |
1493 | RETPUSHNO; | |
1494 | } | |
1495 | /* integer increment */ | |
1496 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1497 | RETPUSHNO; | |
7f61b687 | 1498 | |
eaa5c2d6 | 1499 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1500 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1501 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1502 | { | |
eaa5c2d6 GA |
1503 | /* safe to reuse old SV */ |
1504 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); | |
1505 | } | |
1506 | else | |
1507 | #endif | |
1508 | { | |
1509 | /* we need a fresh SV every time so that loop body sees a | |
1510 | * completely new SV for closures/references to work as they | |
1511 | * used to */ | |
1512 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1513 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); | |
1514 | } | |
89ea2908 GA |
1515 | RETPUSHYES; |
1516 | } | |
1517 | ||
1518 | /* iterate array */ | |
3280af22 | 1519 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1520 | RETPUSHNO; |
a0d0e21e | 1521 | |
7a4c00b4 | 1522 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1523 | |
93965878 NIS |
1524 | if (sv = (SvMAGICAL(av)) |
1525 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1526 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1527 | SvTEMP_off(sv); |
a0d0e21e | 1528 | else |
3280af22 NIS |
1529 | sv = &PL_sv_undef; |
1530 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1531 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1532 | if (lv && SvREFCNT(lv) > 1) { |
1533 | SvREFCNT_dec(lv); | |
1534 | lv = Nullsv; | |
1535 | } | |
5f05dabc | 1536 | if (lv) |
1537 | SvREFCNT_dec(LvTARG(lv)); | |
1538 | else { | |
68dc0745 | 1539 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1540 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1541 | LvTYPE(lv) = 'y'; |
68dc0745 | 1542 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1543 | } |
1544 | LvTARG(lv) = SvREFCNT_inc(av); | |
1545 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1546 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1547 | sv = (SV*)lv; |
1548 | } | |
a0d0e21e | 1549 | |
7a4c00b4 | 1550 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1551 | RETPUSHYES; |
1552 | } | |
1553 | ||
1554 | PP(pp_subst) | |
1555 | { | |
4e35701f | 1556 | djSP; dTARG; |
a0d0e21e LW |
1557 | register PMOP *pm = cPMOP; |
1558 | PMOP *rpm = pm; | |
1559 | register SV *dstr; | |
1560 | register char *s; | |
1561 | char *strend; | |
1562 | register char *m; | |
1563 | char *c; | |
1564 | register char *d; | |
1565 | STRLEN clen; | |
1566 | I32 iters = 0; | |
1567 | I32 maxiters; | |
1568 | register I32 i; | |
1569 | bool once; | |
71be2cbc | 1570 | bool rxtainted; |
a0d0e21e LW |
1571 | char *orig; |
1572 | I32 safebase; | |
d9f97599 | 1573 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1574 | STRLEN len; |
1575 | int force_on_match = 0; | |
3280af22 | 1576 | I32 oldsave = PL_savestack_ix; |
c277df42 IZ |
1577 | I32 update_minmatch = 1; |
1578 | SV *screamer; | |
a0d0e21e | 1579 | |
5cd24f17 | 1580 | /* known replacement string? */ |
1581 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1582 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1583 | TARG = POPs; |
1584 | else { | |
54b9620d | 1585 | TARG = DEFSV; |
a0d0e21e | 1586 | EXTEND(SP,1); |
8ec5e241 | 1587 | } |
68dc0745 | 1588 | if (SvREADONLY(TARG) |
1589 | || (SvTYPE(TARG) > SVt_PVLV | |
1590 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
1591 | croak(no_modify); | |
8ec5e241 NIS |
1592 | PUTBACK; |
1593 | ||
a0d0e21e | 1594 | s = SvPV(TARG, len); |
68dc0745 | 1595 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1596 | force_on_match = 1; |
b3eb6a9b | 1597 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1598 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1599 | if (PL_tainted) | |
b3eb6a9b | 1600 | rxtainted |= 2; |
9212bbba | 1601 | TAINT_NOT; |
a0d0e21e LW |
1602 | |
1603 | force_it: | |
1604 | if (!pm || !s) | |
1605 | DIE("panic: do_subst"); | |
1606 | ||
1607 | strend = s + len; | |
2beec16e IZ |
1608 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1609 | position, once with zero-length, | |
1610 | second time with non-zero. */ | |
a0d0e21e | 1611 | |
3280af22 NIS |
1612 | if (!rx->prelen && PL_curpm) { |
1613 | pm = PL_curpm; | |
d9f97599 | 1614 | rx = pm->op_pmregexp; |
a0d0e21e | 1615 | } |
d9f97599 GS |
1616 | screamer = ( (SvSCREAM(TARG) && rx->check_substr |
1617 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
1618 | && SvVALID(rx->check_substr)) | |
c277df42 | 1619 | ? TARG : Nullsv); |
a575ca2f GB |
1620 | safebase = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
1621 | ? REXEC_COPY_STR : 0; | |
a0d0e21e | 1622 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1623 | SAVEINT(PL_multiline); |
1624 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1625 | } |
1626 | orig = m = s; | |
d9f97599 GS |
1627 | if (rx->check_substr) { |
1628 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ | |
c277df42 IZ |
1629 | if (screamer) { |
1630 | I32 p = -1; | |
1631 | ||
3280af22 | 1632 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e | 1633 | goto nope; |
d9f97599 | 1634 | else if (!(s = screaminstr(TARG, rx->check_substr, rx->check_offset_min, 0, &p, 0))) |
a0d0e21e LW |
1635 | goto nope; |
1636 | } | |
d9f97599 | 1637 | else if (!(s = fbm_instr((unsigned char*)s + rx->check_offset_min, |
c277df42 | 1638 | (unsigned char*)strend, |
411d5715 | 1639 | rx->check_substr, 0))) |
a0d0e21e | 1640 | goto nope; |
d9f97599 GS |
1641 | if (s && rx->check_offset_max < s - m) { |
1642 | ++BmUSEFUL(rx->check_substr); | |
1643 | s -= rx->check_offset_max; | |
a0d0e21e LW |
1644 | } |
1645 | else | |
1646 | s = m; | |
1647 | } | |
c277df42 IZ |
1648 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1649 | beginning of match, and the match is anchored at s. */ | |
3280af22 | 1650 | else if (!PL_multiline) { /* Anchored at beginning of string. */ |
c277df42 | 1651 | I32 slen; |
d9f97599 GS |
1652 | if (*SvPVX(rx->check_substr) != s[rx->check_offset_min] |
1653 | || ((slen = SvCUR(rx->check_substr)) > 1 | |
1654 | && memNE(SvPVX(rx->check_substr), | |
1655 | s + rx->check_offset_min, slen))) | |
bbce6d69 | 1656 | goto nope; |
a0d0e21e | 1657 | } |
d9f97599 GS |
1658 | if (!rx->naughty && --BmUSEFUL(rx->check_substr) < 0 |
1659 | && rx->check_substr == rx->float_substr) { | |
1660 | SvREFCNT_dec(rx->check_substr); | |
1661 | rx->check_substr = Nullsv; /* opt is being useless */ | |
1662 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
1663 | } |
1664 | } | |
71be2cbc | 1665 | |
1666 | /* only replace once? */ | |
a0d0e21e | 1667 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1668 | |
1669 | /* known replacement string? */ | |
5cd24f17 | 1670 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1671 | |
1672 | /* can do inplace substitution? */ | |
d9f97599 GS |
1673 | if (c && clen <= rx->minlen && (once || !(safebase & REXEC_COPY_STR)) |
1674 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { | |
15e52e56 | 1675 | if (!CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
8ec5e241 | 1676 | SPAGAIN; |
3280af22 | 1677 | PUSHs(&PL_sv_no); |
71be2cbc | 1678 | LEAVE_SCOPE(oldsave); |
1679 | RETURN; | |
1680 | } | |
1681 | if (force_on_match) { | |
1682 | force_on_match = 0; | |
1683 | s = SvPV_force(TARG, len); | |
1684 | goto force_it; | |
1685 | } | |
71be2cbc | 1686 | d = s; |
3280af22 | 1687 | PL_curpm = pm; |
71be2cbc | 1688 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1689 | if (once) { | |
48c036b1 | 1690 | rxtainted |= RX_MATCH_TAINTED(rx); |
d9f97599 GS |
1691 | if (rx->subbase) { |
1692 | m = orig + (rx->startp[0] - rx->subbase); | |
1693 | d = orig + (rx->endp[0] - rx->subbase); | |
c277df42 | 1694 | } else { |
d9f97599 GS |
1695 | m = rx->startp[0]; |
1696 | d = rx->endp[0]; | |
c277df42 | 1697 | } |
71be2cbc | 1698 | s = orig; |
1699 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1700 | if (clen) { | |
1701 | Copy(c, m, clen, char); | |
1702 | m += clen; | |
a0d0e21e | 1703 | } |
71be2cbc | 1704 | i = strend - d; |
1705 | if (i > 0) { | |
1706 | Move(d, m, i, char); | |
1707 | m += i; | |
a0d0e21e | 1708 | } |
71be2cbc | 1709 | *m = '\0'; |
1710 | SvCUR_set(TARG, m - s); | |
1711 | } | |
1712 | /*SUPPRESS 560*/ | |
1713 | else if (i = m - s) { /* faster from front */ | |
1714 | d -= clen; | |
1715 | m = d; | |
1716 | sv_chop(TARG, d-i); | |
1717 | s += i; | |
1718 | while (i--) | |
1719 | *--d = *--s; | |
1720 | if (clen) | |
1721 | Copy(c, m, clen, char); | |
1722 | } | |
1723 | else if (clen) { | |
1724 | d -= clen; | |
1725 | sv_chop(TARG, d); | |
1726 | Copy(c, d, clen, char); | |
1727 | } | |
1728 | else { | |
1729 | sv_chop(TARG, d); | |
1730 | } | |
48c036b1 | 1731 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1732 | SPAGAIN; |
3280af22 | 1733 | PUSHs(&PL_sv_yes); |
71be2cbc | 1734 | } |
1735 | else { | |
71be2cbc | 1736 | do { |
1737 | if (iters++ > maxiters) | |
1738 | DIE("Substitution loop"); | |
d9f97599 GS |
1739 | rxtainted |= RX_MATCH_TAINTED(rx); |
1740 | m = rx->startp[0]; | |
71be2cbc | 1741 | /*SUPPRESS 560*/ |
1742 | if (i = m - s) { | |
1743 | if (s != d) | |
1744 | Move(s, d, i, char); | |
1745 | d += i; | |
a0d0e21e | 1746 | } |
71be2cbc | 1747 | if (clen) { |
1748 | Copy(c, d, clen, char); | |
1749 | d += clen; | |
1750 | } | |
d9f97599 | 1751 | s = rx->endp[0]; |
15e52e56 | 1752 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, |
c277df42 | 1753 | Nullsv, NULL, 0)); /* don't match same null twice */ |
71be2cbc | 1754 | if (s != d) { |
1755 | i = strend - s; | |
1756 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1757 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1758 | } |
48c036b1 | 1759 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1760 | SPAGAIN; |
71be2cbc | 1761 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1762 | } |
71be2cbc | 1763 | (void)SvPOK_only(TARG); |
48c036b1 | 1764 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1765 | if (SvSMAGICAL(TARG)) { |
1766 | PUTBACK; | |
1767 | mg_set(TARG); | |
1768 | SPAGAIN; | |
1769 | } | |
9212bbba | 1770 | SvTAINT(TARG); |
71be2cbc | 1771 | LEAVE_SCOPE(oldsave); |
1772 | RETURN; | |
a0d0e21e | 1773 | } |
71be2cbc | 1774 | |
15e52e56 | 1775 | if (CALLREGEXEC(rx, s, strend, orig, 0, screamer, NULL, safebase)) { |
a0d0e21e LW |
1776 | if (force_on_match) { |
1777 | force_on_match = 0; | |
1778 | s = SvPV_force(TARG, len); | |
1779 | goto force_it; | |
1780 | } | |
48c036b1 | 1781 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1782 | dstr = NEWSV(25, len); |
a0d0e21e | 1783 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1784 | PL_curpm = pm; |
a0d0e21e | 1785 | if (!c) { |
c09156bb | 1786 | register PERL_CONTEXT *cx; |
8ec5e241 | 1787 | SPAGAIN; |
a0d0e21e LW |
1788 | PUSHSUBST(cx); |
1789 | RETURNOP(cPMOP->op_pmreplroot); | |
1790 | } | |
1791 | do { | |
1792 | if (iters++ > maxiters) | |
1793 | DIE("Substitution loop"); | |
d9f97599 GS |
1794 | rxtainted |= RX_MATCH_TAINTED(rx); |
1795 | if (rx->subbase && rx->subbase != orig) { | |
a0d0e21e LW |
1796 | m = s; |
1797 | s = orig; | |
d9f97599 | 1798 | orig = rx->subbase; |
a0d0e21e LW |
1799 | s = orig + (m - s); |
1800 | strend = s + (strend - m); | |
1801 | } | |
d9f97599 | 1802 | m = rx->startp[0]; |
a0d0e21e | 1803 | sv_catpvn(dstr, s, m-s); |
d9f97599 | 1804 | s = rx->endp[0]; |
a0d0e21e LW |
1805 | if (clen) |
1806 | sv_catpvn(dstr, c, clen); | |
1807 | if (once) | |
1808 | break; | |
15e52e56 | 1809 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, Nullsv, NULL, safebase)); |
a0d0e21e | 1810 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1811 | |
4633a7c4 | 1812 | (void)SvOOK_off(TARG); |
cb0b1708 | 1813 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1814 | SvPVX(TARG) = SvPVX(dstr); |
1815 | SvCUR_set(TARG, SvCUR(dstr)); | |
1816 | SvLEN_set(TARG, SvLEN(dstr)); | |
1817 | SvPVX(dstr) = 0; | |
1818 | sv_free(dstr); | |
1819 | ||
48c036b1 | 1820 | TAINT_IF(rxtainted & 1); |
f878fbec | 1821 | SPAGAIN; |
48c036b1 GS |
1822 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1823 | ||
a0d0e21e | 1824 | (void)SvPOK_only(TARG); |
48c036b1 | 1825 | TAINT_IF(rxtainted); |
a0d0e21e | 1826 | SvSETMAGIC(TARG); |
9212bbba | 1827 | SvTAINT(TARG); |
4633a7c4 | 1828 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1829 | RETURN; |
1830 | } | |
5cd24f17 | 1831 | goto ret_no; |
a0d0e21e LW |
1832 | |
1833 | nope: | |
d9f97599 | 1834 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 | 1835 | |
8ec5e241 NIS |
1836 | ret_no: |
1837 | SPAGAIN; | |
3280af22 | 1838 | PUSHs(&PL_sv_no); |
4633a7c4 | 1839 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1840 | RETURN; |
1841 | } | |
1842 | ||
1843 | PP(pp_grepwhile) | |
1844 | { | |
4e35701f | 1845 | djSP; |
a0d0e21e LW |
1846 | |
1847 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1848 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1849 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
1850 | LEAVE; /* exit inner scope */ |
1851 | ||
1852 | /* All done yet? */ | |
3280af22 | 1853 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 1854 | I32 items; |
54310121 | 1855 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1856 | |
1857 | LEAVE; /* exit outer scope */ | |
1858 | (void)POPMARK; /* pop src */ | |
3280af22 | 1859 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1860 | (void)POPMARK; /* pop dst */ |
3280af22 | 1861 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1862 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1863 | dTARGET; |
1864 | XPUSHi(items); | |
a0d0e21e | 1865 | } |
54310121 | 1866 | else if (gimme == G_ARRAY) |
1867 | SP += items; | |
a0d0e21e LW |
1868 | RETURN; |
1869 | } | |
1870 | else { | |
1871 | SV *src; | |
1872 | ||
1873 | ENTER; /* enter inner scope */ | |
3280af22 | 1874 | SAVESPTR(PL_curpm); |
a0d0e21e | 1875 | |
3280af22 | 1876 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1877 | SvTEMP_off(src); |
54b9620d | 1878 | DEFSV = src; |
a0d0e21e LW |
1879 | |
1880 | RETURNOP(cLOGOP->op_other); | |
1881 | } | |
1882 | } | |
1883 | ||
1884 | PP(pp_leavesub) | |
1885 | { | |
4e35701f | 1886 | djSP; |
a0d0e21e LW |
1887 | SV **mark; |
1888 | SV **newsp; | |
1889 | PMOP *newpm; | |
1890 | I32 gimme; | |
c09156bb | 1891 | register PERL_CONTEXT *cx; |
f86702cc | 1892 | struct block_sub cxsub; |
a0d0e21e LW |
1893 | |
1894 | POPBLOCK(cx,newpm); | |
f86702cc | 1895 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1896 | ||
a1f49e72 | 1897 | TAINT_NOT; |
a0d0e21e LW |
1898 | if (gimme == G_SCALAR) { |
1899 | MARK = newsp + 1; | |
a29cdaf0 IZ |
1900 | if (MARK <= SP) { |
1901 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { | |
1902 | if (SvTEMP(TOPs)) { | |
1903 | *MARK = SvREFCNT_inc(TOPs); | |
1904 | FREETMPS; | |
1905 | sv_2mortal(*MARK); | |
1906 | } else { | |
1907 | FREETMPS; | |
1908 | *MARK = sv_mortalcopy(TOPs); | |
1909 | } | |
1910 | } else | |
1911 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
1912 | } else { | |
f86702cc | 1913 | MEXTEND(MARK, 0); |
3280af22 | 1914 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
1915 | } |
1916 | SP = MARK; | |
1917 | } | |
54310121 | 1918 | else if (gimme == G_ARRAY) { |
f86702cc | 1919 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1920 | if (!SvTEMP(*MARK)) { |
f86702cc | 1921 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1922 | TAINT_NOT; /* Each item is independent */ |
1923 | } | |
f86702cc | 1924 | } |
a0d0e21e | 1925 | } |
f86702cc | 1926 | PUTBACK; |
1927 | ||
1928 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
3280af22 | 1929 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
1930 | |
1931 | LEAVE; | |
a0d0e21e LW |
1932 | return pop_return(); |
1933 | } | |
1934 | ||
76e3520e | 1935 | STATIC CV * |
8ac85365 | 1936 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 MB |
1937 | { |
1938 | dTHR; | |
3280af22 | 1939 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
1940 | |
1941 | if (!PERLDB_SUB_NN) { | |
1942 | GV *gv = CvGV(cv); | |
1943 | ||
1944 | save_item(dbsv); | |
1945 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1946 | || strEQ(GvNAME(gv), "END") | |
1947 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
1948 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
1949 | && (gv = (GV*)*svp) ))) { | |
1950 | /* Use GV from the stack as a fallback. */ | |
1951 | /* GV is potentially non-unique, or contain different CV. */ | |
1952 | sv_setsv(dbsv, newRV((SV*)cv)); | |
1953 | } | |
1954 | else { | |
1955 | gv_efullname3(dbsv, gv, Nullch); | |
1956 | } | |
3de9ffa1 MB |
1957 | } |
1958 | else { | |
491527d0 GS |
1959 | SvUPGRADE(dbsv, SVt_PVIV); |
1960 | SvIOK_on(dbsv); | |
1961 | SAVEIV(SvIVX(dbsv)); | |
1962 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ | |
3de9ffa1 | 1963 | } |
491527d0 | 1964 | |
3de9ffa1 | 1965 | if (CvXSUB(cv)) |
3280af22 NIS |
1966 | PL_curcopdb = PL_curcop; |
1967 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
1968 | return cv; |
1969 | } | |
1970 | ||
a0d0e21e LW |
1971 | PP(pp_entersub) |
1972 | { | |
4e35701f | 1973 | djSP; dPOPss; |
a0d0e21e LW |
1974 | GV *gv; |
1975 | HV *stash; | |
1976 | register CV *cv; | |
c09156bb | 1977 | register PERL_CONTEXT *cx; |
5d94fbed | 1978 | I32 gimme; |
533c011a | 1979 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
1980 | |
1981 | if (!sv) | |
1982 | DIE("Not a CODE reference"); | |
1983 | switch (SvTYPE(sv)) { | |
1984 | default: | |
1985 | if (!SvROK(sv)) { | |
748a9306 LW |
1986 | char *sym; |
1987 | ||
3280af22 | 1988 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 1989 | if (hasargs) |
3280af22 | 1990 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 1991 | RETURN; |
fb73857a | 1992 | } |
15ff848f CS |
1993 | if (SvGMAGICAL(sv)) { |
1994 | mg_get(sv); | |
1995 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
1996 | } | |
1997 | else | |
3280af22 | 1998 | sym = SvPV(sv, PL_na); |
15ff848f | 1999 | if (!sym) |
a0d0e21e | 2000 | DIE(no_usym, "a subroutine"); |
533c011a | 2001 | if (PL_op->op_private & HINT_STRICT_REFS) |
748a9306 LW |
2002 | DIE(no_symref, sym, "a subroutine"); |
2003 | cv = perl_get_cv(sym, TRUE); | |
a0d0e21e LW |
2004 | break; |
2005 | } | |
2006 | cv = (CV*)SvRV(sv); | |
2007 | if (SvTYPE(cv) == SVt_PVCV) | |
2008 | break; | |
2009 | /* FALL THROUGH */ | |
2010 | case SVt_PVHV: | |
2011 | case SVt_PVAV: | |
2012 | DIE("Not a CODE reference"); | |
2013 | case SVt_PVCV: | |
2014 | cv = (CV*)sv; | |
2015 | break; | |
2016 | case SVt_PVGV: | |
8ebc5c01 | 2017 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e LW |
2018 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
2019 | break; | |
2020 | } | |
2021 | ||
2022 | ENTER; | |
2023 | SAVETMPS; | |
2024 | ||
2025 | retry: | |
2026 | if (!cv) | |
2027 | DIE("Not a CODE reference"); | |
2028 | ||
2029 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
44a8e56a | 2030 | GV* autogv; |
22239a37 | 2031 | SV* sub_name; |
44a8e56a | 2032 | |
2033 | /* anonymous or undef'd function leaves us no recourse */ | |
2034 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
2035 | DIE("Undefined subroutine called"); | |
2036 | /* autoloaded stub? */ | |
2037 | if (cv != GvCV(gv)) { | |
2038 | cv = GvCV(gv); | |
2039 | goto retry; | |
a0d0e21e | 2040 | } |
44a8e56a | 2041 | /* should call AUTOLOAD now? */ |
54310121 | 2042 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2043 | FALSE))) | |
2044 | { | |
44a8e56a | 2045 | cv = GvCV(autogv); |
2046 | goto retry; | |
a0d0e21e | 2047 | } |
44a8e56a | 2048 | /* sorry */ |
22239a37 NIS |
2049 | sub_name = sv_newmortal(); |
2050 | gv_efullname3(sub_name, gv, Nullch); | |
2051 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); | |
a0d0e21e LW |
2052 | } |
2053 | ||
54310121 | 2054 | gimme = GIMME_V; |
533c011a | 2055 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 | 2056 | cv = get_db_sub(&sv, cv); |
3de9ffa1 MB |
2057 | if (!cv) |
2058 | DIE("No DBsub routine"); | |
a0d0e21e | 2059 | |
11343788 | 2060 | #ifdef USE_THREADS |
3de9ffa1 MB |
2061 | /* |
2062 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2063 | * If so, we gain a lock on the CV, the first argument or the |
2064 | * stash (for static methods), as appropriate. This has to be | |
2065 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2066 | * reschedule by returning a new op. | |
3de9ffa1 | 2067 | */ |
11343788 | 2068 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2069 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2070 | MAGIC *mg; | |
2071 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2072 | if (SP > PL_stack_base + TOPMARK) |
2073 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab MB |
2074 | else { |
2075 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2076 | croak("no argument for locked method call"); | |
2077 | } | |
2078 | if (SvROK(sv)) | |
2079 | sv = SvRV(sv); | |
458fb581 MB |
2080 | else { |
2081 | STRLEN len; | |
2082 | char *stashname = SvPV(sv, len); | |
2083 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2084 | } | |
77a005ab MB |
2085 | } |
2086 | else { | |
2087 | sv = (SV*)cv; | |
2088 | } | |
2089 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2090 | mg = condpair_magic(sv); | |
2091 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2092 | if (MgOWNER(mg) == thr) | |
2093 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2094 | else { | |
2095 | while (MgOWNER(mg)) | |
2096 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2097 | MgOWNER(mg) = thr; | |
8b73bbec | 2098 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 | 2099 | thr, sv);) |
77a005ab MB |
2100 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2101 | save_destructor(unlock_condpair, sv); | |
11343788 | 2102 | } |
77a005ab | 2103 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2104 | } |
3de9ffa1 MB |
2105 | /* |
2106 | * Now we have permission to enter the sub, we must distinguish | |
2107 | * four cases. (0) It's an XSUB (in which case we don't care | |
2108 | * about ownership); (1) it's ours already (and we're recursing); | |
2109 | * (2) it's free (but we may already be using a cached clone); | |
2110 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2111 | * Case (2) means we look for a clone--if we have one, use it | |
2112 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2113 | * clone (for non-XSUBs) and have to create one if we don't | |
2114 | * already have one. | |
2115 | * Why look for a clone in case (2) when we could just grab | |
2116 | * ownership of cv straight away? Well, we could be recursing, | |
2117 | * i.e. we originally tried to enter cv while another thread | |
2118 | * owned it (hence we used a clone) but it has been freed up | |
2119 | * and we're now recursing into it. It may or may not be "better" | |
2120 | * to use the clone but at least CvDEPTH can be trusted. | |
2121 | */ | |
2122 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2123 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2124 | else { |
3de9ffa1 MB |
2125 | /* Case (2) or (3) */ |
2126 | SV **svp; | |
2127 | ||
11343788 | 2128 | /* |
3de9ffa1 MB |
2129 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2130 | * do the hv_fetch? We might find someone has pinched it | |
2131 | * when we look again, in which case we would be in case | |
2132 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2133 | * that we released the mutex more quickly make up for this? | |
2134 | */ | |
533c011a | 2135 | if (PL_threadnum && |
6ee623d5 GS |
2136 | (svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
2137 | { | |
3de9ffa1 | 2138 | /* We already have a clone to use */ |
11343788 | 2139 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2140 | cv = *(CV**)svp; |
8b73bbec | 2141 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2142 | "entersub: %p already has clone %p:%s\n", |
2143 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2144 | CvOWNER(cv) = thr; |
2145 | SvREFCNT_inc(cv); | |
2146 | if (CvDEPTH(cv) == 0) | |
2147 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
2148 | } | |
11343788 | 2149 | else { |
3de9ffa1 MB |
2150 | /* (2) => grab ownership of cv. (3) => make clone */ |
2151 | if (!CvOWNER(cv)) { | |
2152 | CvOWNER(cv) = thr; | |
2153 | SvREFCNT_inc(cv); | |
11343788 | 2154 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec | 2155 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2156 | "entersub: %p grabbing %p:%s in stash %s\n", |
2157 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
2158 | HvNAME(CvSTASH(cv)) : "(none)")); |
2159 | } else { | |
2160 | /* Make a new clone. */ | |
2161 | CV *clonecv; | |
2162 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2163 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
8b73bbec | 2164 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2165 | "entersub: %p cloning %p:%s\n", |
2166 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2167 | /* |
2168 | * We're creating a new clone so there's no race | |
2169 | * between the original MUTEX_UNLOCK and the | |
2170 | * SvREFCNT_inc since no one will be trying to undef | |
2171 | * it out from underneath us. At least, I don't think | |
2172 | * there's a race... | |
2173 | */ | |
2174 | clonecv = cv_clone(cv); | |
2175 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2176 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2177 | CvOWNER(clonecv) = thr; |
2178 | cv = clonecv; | |
11343788 | 2179 | SvREFCNT_inc(cv); |
11343788 | 2180 | } |
8b73bbec | 2181 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 MB |
2182 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2183 | CvDEPTH(cv));); | |
2184 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 2185 | } |
3de9ffa1 | 2186 | } |
11343788 MB |
2187 | #endif /* USE_THREADS */ |
2188 | ||
a0d0e21e LW |
2189 | if (CvXSUB(cv)) { |
2190 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 2191 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
2192 | dMARK; |
2193 | register I32 items = SP - MARK; | |
67955e0c | 2194 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2195 | while (SP > mark) { |
2196 | SP[1] = SP[0]; | |
2197 | SP--; | |
a0d0e21e | 2198 | } |
3280af22 | 2199 | PL_stack_sp = mark + 1; |
ecfc5424 AD |
2200 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2201 | items = (*fp3)(CvXSUBANY(cv).any_i32, | |
3280af22 | 2202 | MARK - PL_stack_base + 1, |
ecfc5424 | 2203 | items); |
3280af22 | 2204 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e LW |
2205 | } |
2206 | else { | |
748a9306 LW |
2207 | I32 markix = TOPMARK; |
2208 | ||
a0d0e21e | 2209 | PUTBACK; |
67955e0c | 2210 | |
2211 | if (!hasargs) { | |
2212 | /* Need to copy @_ to stack. Alternative may be to | |
2213 | * switch stack to @_, and copy return values | |
2214 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2215 | AV* av; |
2216 | I32 items; | |
2217 | #ifdef USE_THREADS | |
533c011a | 2218 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2219 | #else |
3280af22 | 2220 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2221 | #endif /* USE_THREADS */ |
93965878 | 2222 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2223 | |
2224 | if (items) { | |
2225 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2226 | EXTEND(SP, items); |
2227 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2228 | SP += items; | |
67955e0c | 2229 | PUTBACK ; |
2230 | } | |
2231 | } | |
3280af22 | 2232 | if (PL_curcopdb) { /* We assume that the first |
67955e0c | 2233 | XSUB in &DB::sub is the |
2234 | called one. */ | |
3280af22 NIS |
2235 | SAVESPTR(PL_curcop); |
2236 | PL_curcop = PL_curcopdb; | |
2237 | PL_curcopdb = NULL; | |
67955e0c | 2238 | } |
2239 | /* Do we need to open block here? XXXX */ | |
1d583055 | 2240 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 LW |
2241 | |
2242 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2243 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2244 | if (markix > PL_stack_sp - PL_stack_base) | |
2245 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2246 | else |
3280af22 NIS |
2247 | *(PL_stack_base + markix) = *PL_stack_sp; |
2248 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2249 | } |
a0d0e21e LW |
2250 | } |
2251 | LEAVE; | |
2252 | return NORMAL; | |
2253 | } | |
2254 | else { | |
2255 | dMARK; | |
2256 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2257 | AV* padlist = CvPADLIST(cv); |
2258 | SV** svp = AvARRAY(padlist); | |
533c011a | 2259 | push_return(PL_op->op_next); |
a0d0e21e LW |
2260 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2261 | PUSHSUB(cx); | |
2262 | CvDEPTH(cv)++; | |
4e43f39e GB |
2263 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2264 | * that eval'' ops within this sub know the correct lexical space. | |
2265 | * Owing the speed considerations, we choose to search for the cv | |
2266 | * in doeval() instead. | |
2267 | */ | |
a0d0e21e LW |
2268 | if (CvDEPTH(cv) < 2) |
2269 | (void)SvREFCNT_inc(cv); | |
2270 | else { /* save temporaries on recursion? */ | |
93965878 | 2271 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2272 | AV *av; |
2273 | AV *newpad = newAV(); | |
4aa0a1f7 | 2274 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2275 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e | 2276 | svp = AvARRAY(svp[0]); |
748a9306 | 2277 | for ( ;ix > 0; ix--) { |
3280af22 | 2278 | if (svp[ix] != &PL_sv_undef) { |
748a9306 | 2279 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2280 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2281 | || *name == '&') /* anonymous code? */ | |
2282 | { | |
2283 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2284 | } |
2285 | else { /* our own lexical */ | |
2286 | if (*name == '@') | |
2287 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2288 | else if (*name == '%') | |
2289 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2290 | else | |
2291 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2292 | SvPADMY_on(sv); | |
2293 | } | |
a0d0e21e LW |
2294 | } |
2295 | else { | |
748a9306 | 2296 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2297 | SvPADTMP_on(sv); |
2298 | } | |
2299 | } | |
2300 | av = newAV(); /* will be @_ */ | |
2301 | av_extend(av, 0); | |
2302 | av_store(newpad, 0, (SV*)av); | |
2303 | AvFLAGS(av) = AVf_REIFY; | |
2304 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2305 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2306 | svp = AvARRAY(padlist); |
2307 | } | |
2308 | } | |
6d4ff0d2 MB |
2309 | #ifdef USE_THREADS |
2310 | if (!hasargs) { | |
533c011a | 2311 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2312 | |
93965878 | 2313 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2314 | if (items) { |
2315 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2316 | EXTEND(SP, items); |
2317 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2318 | SP += items; | |
6d4ff0d2 MB |
2319 | PUTBACK ; |
2320 | } | |
2321 | } | |
2322 | #endif /* USE_THREADS */ | |
3280af22 NIS |
2323 | SAVESPTR(PL_curpad); |
2324 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
6d4ff0d2 MB |
2325 | #ifndef USE_THREADS |
2326 | if (hasargs) | |
2327 | #endif /* USE_THREADS */ | |
2328 | { | |
2329 | AV* av; | |
a0d0e21e LW |
2330 | SV** ary; |
2331 | ||
77a005ab | 2332 | #if 0 |
8b73bbec | 2333 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2334 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2335 | #endif |
3280af22 | 2336 | av = (AV*)PL_curpad[0]; |
a0d0e21e LW |
2337 | if (AvREAL(av)) { |
2338 | av_clear(av); | |
2339 | AvREAL_off(av); | |
2340 | } | |
6d4ff0d2 | 2341 | #ifndef USE_THREADS |
3280af22 NIS |
2342 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2343 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2344 | #endif /* USE_THREADS */ |
2345 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2346 | ++MARK; |
2347 | ||
2348 | if (items > AvMAX(av) + 1) { | |
2349 | ary = AvALLOC(av); | |
2350 | if (AvARRAY(av) != ary) { | |
2351 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2352 | SvPVX(av) = (char*)ary; | |
2353 | } | |
2354 | if (items > AvMAX(av) + 1) { | |
2355 | AvMAX(av) = items - 1; | |
2356 | Renew(ary,items,SV*); | |
2357 | AvALLOC(av) = ary; | |
2358 | SvPVX(av) = (char*)ary; | |
2359 | } | |
2360 | } | |
2361 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2362 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2363 | |
2364 | while (items--) { | |
2365 | if (*MARK) | |
2366 | SvTEMP_off(*MARK); | |
2367 | MARK++; | |
2368 | } | |
2369 | } | |
fc3ad51b GB |
2370 | /* warning must come *after* we fully set up the context |
2371 | * stuff so that __WARN__ handlers can safely dounwind() | |
2372 | * if they want to | |
2373 | */ | |
2374 | if (CvDEPTH(cv) == 100 && PL_dowarn | |
2375 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2376 | sub_crush_depth(cv); | |
77a005ab | 2377 | #if 0 |
8b73bbec | 2378 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2379 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2380 | #endif |
a0d0e21e LW |
2381 | RETURNOP(CvSTART(cv)); |
2382 | } | |
2383 | } | |
2384 | ||
44a8e56a | 2385 | void |
8ac85365 | 2386 | sub_crush_depth(CV *cv) |
44a8e56a | 2387 | { |
2388 | if (CvANON(cv)) | |
2389 | warn("Deep recursion on anonymous subroutine"); | |
2390 | else { | |
2391 | SV* tmpstr = sv_newmortal(); | |
2392 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
2393 | warn("Deep recursion on subroutine \"%s\"", SvPVX(tmpstr)); | |
2394 | } | |
2395 | } | |
2396 | ||
a0d0e21e LW |
2397 | PP(pp_aelem) |
2398 | { | |
4e35701f | 2399 | djSP; |
a0d0e21e | 2400 | SV** svp; |
748a9306 | 2401 | I32 elem = POPi; |
68dc0745 | 2402 | AV* av = (AV*)POPs; |
533c011a NIS |
2403 | U32 lval = PL_op->op_flags & OPf_MOD; |
2404 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2405 | SV *sv; |
a0d0e21e | 2406 | |
748a9306 | 2407 | if (elem > 0) |
3280af22 | 2408 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2409 | if (SvTYPE(av) != SVt_PVAV) |
2410 | RETPUSHUNDEF; | |
68dc0745 | 2411 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2412 | if (lval) { |
3280af22 | 2413 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2414 | SV* lv; |
2415 | if (!defer) | |
2416 | DIE(no_aelem, elem); | |
2417 | lv = sv_newmortal(); | |
2418 | sv_upgrade(lv, SVt_PVLV); | |
2419 | LvTYPE(lv) = 'y'; | |
2420 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2421 | LvTARG(lv) = SvREFCNT_inc(av); | |
2422 | LvTARGOFF(lv) = elem; | |
2423 | LvTARGLEN(lv) = 1; | |
2424 | PUSHs(lv); | |
2425 | RETURN; | |
2426 | } | |
533c011a | 2427 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2428 | save_aelem(av, elem, svp); |
533c011a NIS |
2429 | else if (PL_op->op_private & OPpDEREF) |
2430 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2431 | } |
3280af22 | 2432 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2433 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2434 | sv = sv_mortalcopy(sv); | |
2435 | PUSHs(sv); | |
a0d0e21e LW |
2436 | RETURN; |
2437 | } | |
2438 | ||
02a9e968 | 2439 | void |
8ac85365 | 2440 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 CS |
2441 | { |
2442 | if (SvGMAGICAL(sv)) | |
2443 | mg_get(sv); | |
2444 | if (!SvOK(sv)) { | |
2445 | if (SvREADONLY(sv)) | |
2446 | croak(no_modify); | |
5f05dabc | 2447 | if (SvTYPE(sv) < SVt_RV) |
2448 | sv_upgrade(sv, SVt_RV); | |
2449 | else if (SvTYPE(sv) >= SVt_PV) { | |
2450 | (void)SvOOK_off(sv); | |
2451 | Safefree(SvPVX(sv)); | |
2452 | SvLEN(sv) = SvCUR(sv) = 0; | |
2453 | } | |
68dc0745 | 2454 | switch (to_what) { |
5f05dabc | 2455 | case OPpDEREF_SV: |
8c52afec | 2456 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2457 | break; |
2458 | case OPpDEREF_AV: | |
2459 | SvRV(sv) = (SV*)newAV(); | |
2460 | break; | |
2461 | case OPpDEREF_HV: | |
2462 | SvRV(sv) = (SV*)newHV(); | |
2463 | break; | |
2464 | } | |
02a9e968 CS |
2465 | SvROK_on(sv); |
2466 | SvSETMAGIC(sv); | |
2467 | } | |
2468 | } | |
2469 | ||
a0d0e21e LW |
2470 | PP(pp_method) |
2471 | { | |
4e35701f | 2472 | djSP; |
a0d0e21e LW |
2473 | SV* sv; |
2474 | SV* ob; | |
2475 | GV* gv; | |
56304f61 CS |
2476 | HV* stash; |
2477 | char* name; | |
ac91690f CS |
2478 | char* packname; |
2479 | STRLEN packlen; | |
a0d0e21e | 2480 | |
fb73857a | 2481 | if (SvROK(TOPs)) { |
2482 | sv = SvRV(TOPs); | |
2483 | if (SvTYPE(sv) == SVt_PVCV) { | |
2484 | SETs(sv); | |
2485 | RETURN; | |
2486 | } | |
2487 | } | |
2488 | ||
3280af22 NIS |
2489 | name = SvPV(TOPs, PL_na); |
2490 | sv = *(PL_stack_base + TOPMARK + 1); | |
a0d0e21e | 2491 | |
16d20bd9 AD |
2492 | if (SvGMAGICAL(sv)) |
2493 | mg_get(sv); | |
a0d0e21e | 2494 | if (SvROK(sv)) |
16d20bd9 | 2495 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2496 | else { |
2497 | GV* iogv; | |
a0d0e21e | 2498 | |
56304f61 | 2499 | packname = Nullch; |
a0d0e21e | 2500 | if (!SvOK(sv) || |
56304f61 | 2501 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2502 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2503 | !(ob=(SV*)GvIO(iogv))) | |
2504 | { | |
56304f61 | 2505 | if (!packname || !isIDFIRST(*packname)) |
72b5445b GS |
2506 | DIE("Can't call method \"%s\" %s", name, |
2507 | SvOK(sv)? "without a package or object reference" | |
2508 | : "on an undefined value"); | |
56304f61 | 2509 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2510 | goto fetch; |
a0d0e21e | 2511 | } |
3280af22 | 2512 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2513 | } |
2514 | ||
ac91690f | 2515 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e | 2516 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2517 | |
56304f61 | 2518 | stash = SvSTASH(ob); |
a0d0e21e | 2519 | |
ac91690f | 2520 | fetch: |
ac91690f | 2521 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2522 | if (!gv) { |
2523 | char* leaf = name; | |
2524 | char* sep = Nullch; | |
2525 | char* p; | |
2526 | ||
2527 | for (p = name; *p; p++) { | |
2528 | if (*p == '\'') | |
2529 | sep = p, leaf = p + 1; | |
2530 | else if (*p == ':' && *(p + 1) == ':') | |
2531 | sep = p, leaf = p + 2; | |
2532 | } | |
2533 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
3280af22 | 2534 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 CS |
2535 | packlen = strlen(packname); |
2536 | } | |
2537 | else { | |
2538 | packname = name; | |
2539 | packlen = sep - name; | |
2540 | } | |
2541 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", | |
2542 | leaf, (int)packlen, packname); | |
2543 | } | |
8ebc5c01 | 2544 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2545 | RETURN; |
2546 | } | |
22239a37 | 2547 |