Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
4eb8286e | 3 | * Copyright (c) 1991-1999, 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" | |
864dbfa3 | 19 | #define PERL_IN_PP_HOT_C |
a0d0e21e LW |
20 | #include "perl.h" |
21 | ||
8ac85365 NIS |
22 | #ifdef I_UNISTD |
23 | #include <unistd.h> | |
24 | #endif | |
9d116dd7 JH |
25 | #ifdef I_FCNTL |
26 | #include <fcntl.h> | |
27 | #endif | |
28 | #ifdef I_SYS_FILE | |
29 | #include <sys/file.h> | |
30 | #endif | |
8ac85365 | 31 | |
a0ed51b3 LW |
32 | #define HOP(pos,off) (IN_UTF8 ? utf8_hop(pos, off) : (pos + off)) |
33 | ||
a0d0e21e LW |
34 | /* Hot code. */ |
35 | ||
11343788 | 36 | #ifdef USE_THREADS |
864dbfa3 | 37 | STATIC void |
cea2e8a9 | 38 | S_unset_cvowner(pTHX_ void *cvarg) |
11343788 MB |
39 | { |
40 | register CV* cv = (CV *) cvarg; | |
41 | #ifdef DEBUGGING | |
42 | dTHR; | |
43 | #endif /* DEBUGGING */ | |
44 | ||
8b73bbec | 45 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
1fd28e87 | 46 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 | 47 | MUTEX_LOCK(CvMUTEXP(cv)); |
8b73bbec | 48 | DEBUG_S(if (CvDEPTH(cv) != 0) |
77a005ab MB |
49 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
50 | CvDEPTH(cv));); | |
11343788 MB |
51 | assert(thr == CvOWNER(cv)); |
52 | CvOWNER(cv) = 0; | |
11343788 MB |
53 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
54 | SvREFCNT_dec(cv); | |
55 | } | |
11343788 MB |
56 | #endif /* USE_THREADS */ |
57 | ||
a0d0e21e LW |
58 | PP(pp_const) |
59 | { | |
4e35701f | 60 | djSP; |
a0d0e21e LW |
61 | XPUSHs(cSVOP->op_sv); |
62 | RETURN; | |
63 | } | |
64 | ||
65 | PP(pp_nextstate) | |
66 | { | |
533c011a | 67 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 68 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 69 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
70 | FREETMPS; |
71 | return NORMAL; | |
72 | } | |
73 | ||
74 | PP(pp_gvsv) | |
75 | { | |
4e35701f | 76 | djSP; |
924508f0 | 77 | EXTEND(SP,1); |
533c011a | 78 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e LW |
79 | PUSHs(save_scalar(cGVOP->op_gv)); |
80 | else | |
81 | PUSHs(GvSV(cGVOP->op_gv)); | |
82 | RETURN; | |
83 | } | |
84 | ||
85 | PP(pp_null) | |
86 | { | |
87 | return NORMAL; | |
88 | } | |
89 | ||
90 | PP(pp_pushmark) | |
91 | { | |
3280af22 | 92 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
93 | return NORMAL; |
94 | } | |
95 | ||
96 | PP(pp_stringify) | |
97 | { | |
4e35701f | 98 | djSP; dTARGET; |
a0d0e21e LW |
99 | STRLEN len; |
100 | char *s; | |
101 | s = SvPV(TOPs,len); | |
102 | sv_setpvn(TARG,s,len); | |
103 | SETTARG; | |
104 | RETURN; | |
105 | } | |
106 | ||
107 | PP(pp_gv) | |
108 | { | |
4e35701f | 109 | djSP; |
a0d0e21e LW |
110 | XPUSHs((SV*)cGVOP->op_gv); |
111 | RETURN; | |
112 | } | |
113 | ||
114 | PP(pp_and) | |
115 | { | |
4e35701f | 116 | djSP; |
a0d0e21e LW |
117 | if (!SvTRUE(TOPs)) |
118 | RETURN; | |
119 | else { | |
120 | --SP; | |
121 | RETURNOP(cLOGOP->op_other); | |
122 | } | |
123 | } | |
124 | ||
125 | PP(pp_sassign) | |
126 | { | |
4e35701f | 127 | djSP; dPOPTOPssrl; |
748a9306 LW |
128 | MAGIC *mg; |
129 | ||
533c011a | 130 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
131 | SV *temp; |
132 | temp = left; left = right; right = temp; | |
133 | } | |
3280af22 | 134 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 135 | TAINT_NOT; |
54310121 | 136 | SvSetMagicSV(right, left); |
a0d0e21e LW |
137 | SETs(right); |
138 | RETURN; | |
139 | } | |
140 | ||
141 | PP(pp_cond_expr) | |
142 | { | |
4e35701f | 143 | djSP; |
a0d0e21e | 144 | if (SvTRUEx(POPs)) |
1a67a97c | 145 | RETURNOP(cLOGOP->op_other); |
a0d0e21e | 146 | else |
1a67a97c | 147 | RETURNOP(cLOGOP->op_next); |
a0d0e21e LW |
148 | } |
149 | ||
150 | PP(pp_unstack) | |
151 | { | |
152 | I32 oldsave; | |
153 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 154 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 155 | FREETMPS; |
3280af22 | 156 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
157 | LEAVE_SCOPE(oldsave); |
158 | return NORMAL; | |
159 | } | |
160 | ||
a0d0e21e LW |
161 | PP(pp_concat) |
162 | { | |
4e35701f | 163 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
164 | { |
165 | dPOPTOPssrl; | |
a0d0e21e LW |
166 | STRLEN len; |
167 | char *s; | |
168 | if (TARG != left) { | |
169 | s = SvPV(left,len); | |
170 | sv_setpvn(TARG,s,len); | |
171 | } | |
c07a80fd | 172 | else if (SvGMAGICAL(TARG)) |
173 | mg_get(TARG); | |
7a4c00b4 | 174 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 | 175 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 | 176 | s = SvPV_force(TARG, len); |
4633a7c4 | 177 | } |
a0d0e21e | 178 | s = SvPV(right,len); |
68dc0745 | 179 | if (SvOK(TARG)) |
180 | sv_catpvn(TARG,s,len); | |
181 | else | |
182 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
183 | SETTARG; |
184 | RETURN; | |
748a9306 | 185 | } |
a0d0e21e LW |
186 | } |
187 | ||
188 | PP(pp_padsv) | |
189 | { | |
4e35701f | 190 | djSP; dTARGET; |
a0d0e21e | 191 | XPUSHs(TARG); |
533c011a NIS |
192 | if (PL_op->op_flags & OPf_MOD) { |
193 | if (PL_op->op_private & OPpLVAL_INTRO) | |
194 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
195 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 196 | PUTBACK; |
533c011a | 197 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
198 | SPAGAIN; |
199 | } | |
4633a7c4 | 200 | } |
a0d0e21e LW |
201 | RETURN; |
202 | } | |
203 | ||
204 | PP(pp_readline) | |
205 | { | |
f5284f61 | 206 | tryAMAGICunTARGET(iter, 0); |
3280af22 | 207 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 GS |
208 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
209 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) | |
f5284f61 | 210 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 | 211 | else { |
f5284f61 IZ |
212 | dSP; |
213 | XPUSHs((SV*)PL_last_in_gv); | |
214 | PUTBACK; | |
cea2e8a9 | 215 | pp_rv2gv(); |
f5284f61 | 216 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 IZ |
217 | } |
218 | } | |
a0d0e21e LW |
219 | return do_readline(); |
220 | } | |
221 | ||
222 | PP(pp_eq) | |
223 | { | |
4e35701f | 224 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
225 | { |
226 | dPOPnv; | |
54310121 | 227 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
228 | RETURN; |
229 | } | |
230 | } | |
231 | ||
232 | PP(pp_preinc) | |
233 | { | |
4e35701f | 234 | djSP; |
68dc0745 | 235 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
cea2e8a9 | 236 | Perl_croak(aTHX_ PL_no_modify); |
25da4f38 | 237 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff | 238 | SvIVX(TOPs) != IV_MAX) |
239 | { | |
748a9306 | 240 | ++SvIVX(TOPs); |
55497cff | 241 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
242 | } |
243 | else | |
244 | sv_inc(TOPs); | |
a0d0e21e LW |
245 | SvSETMAGIC(TOPs); |
246 | return NORMAL; | |
247 | } | |
248 | ||
249 | PP(pp_or) | |
250 | { | |
4e35701f | 251 | djSP; |
a0d0e21e LW |
252 | if (SvTRUE(TOPs)) |
253 | RETURN; | |
254 | else { | |
255 | --SP; | |
256 | RETURNOP(cLOGOP->op_other); | |
257 | } | |
258 | } | |
259 | ||
260 | PP(pp_add) | |
261 | { | |
4e35701f | 262 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 263 | { |
7a4c00b4 | 264 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
265 | SETn( left + right ); |
266 | RETURN; | |
267 | } | |
268 | } | |
269 | ||
270 | PP(pp_aelemfast) | |
271 | { | |
4e35701f | 272 | djSP; |
a0d0e21e | 273 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a NIS |
274 | U32 lval = PL_op->op_flags & OPf_MOD; |
275 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 276 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 277 | EXTEND(SP, 1); |
be6c24e0 GS |
278 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
279 | sv = sv_mortalcopy(sv); | |
280 | PUSHs(sv); | |
a0d0e21e LW |
281 | RETURN; |
282 | } | |
283 | ||
284 | PP(pp_join) | |
285 | { | |
4e35701f | 286 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
287 | MARK++; |
288 | do_join(TARG, *MARK, MARK, SP); | |
289 | SP = MARK; | |
290 | SETs(TARG); | |
291 | RETURN; | |
292 | } | |
293 | ||
294 | PP(pp_pushre) | |
295 | { | |
4e35701f | 296 | djSP; |
44a8e56a | 297 | #ifdef DEBUGGING |
298 | /* | |
299 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
300 | * will be enough to hold an OP*. | |
301 | */ | |
302 | SV* sv = sv_newmortal(); | |
303 | sv_upgrade(sv, SVt_PVLV); | |
304 | LvTYPE(sv) = '/'; | |
533c011a | 305 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 306 | XPUSHs(sv); |
307 | #else | |
6b88bc9c | 308 | XPUSHs((SV*)PL_op); |
44a8e56a | 309 | #endif |
a0d0e21e LW |
310 | RETURN; |
311 | } | |
312 | ||
313 | /* Oversized hot code. */ | |
314 | ||
315 | PP(pp_print) | |
316 | { | |
4e35701f | 317 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
318 | GV *gv; |
319 | IO *io; | |
760ac839 | 320 | register PerlIO *fp; |
236988e4 | 321 | MAGIC *mg; |
2d8e6c8d | 322 | STRLEN n_a; |
a0d0e21e | 323 | |
533c011a | 324 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
325 | gv = (GV*)*++MARK; |
326 | else | |
3280af22 | 327 | gv = PL_defoutgv; |
33c27489 | 328 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 | 329 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
330 | /* If using default handle then we need to make space to |
331 | * pass object as 1st arg, so move other args up ... | |
332 | */ | |
4352c267 | 333 | MEXTEND(SP, 1); |
68dc0745 | 334 | ++MARK; |
335 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
336 | ++SP; | |
337 | } | |
338 | PUSHMARK(MARK - 1); | |
33c27489 | 339 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 340 | PUTBACK; |
236988e4 | 341 | ENTER; |
864dbfa3 | 342 | call_method("PRINT", G_SCALAR); |
236988e4 | 343 | LEAVE; |
344 | SPAGAIN; | |
68dc0745 | 345 | MARK = ORIGMARK + 1; |
346 | *MARK = *SP; | |
347 | SP = MARK; | |
236988e4 | 348 | RETURN; |
349 | } | |
a0d0e21e | 350 | if (!(io = GvIO(gv))) { |
599cee73 | 351 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 | 352 | SV* sv = sv_newmortal(); |
af8c498a GS |
353 | gv_efullname3(sv, gv, Nullch); |
354 | Perl_warner(aTHX_ WARN_UNOPENED, "Filehandle %s never opened", | |
355 | SvPV(sv,n_a)); | |
748a9306 | 356 | } |
748a9306 | 357 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e LW |
358 | goto just_say_no; |
359 | } | |
360 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 361 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
748a9306 | 362 | SV* sv = sv_newmortal(); |
af8c498a | 363 | gv_efullname3(sv, gv, Nullch); |
a0d0e21e | 364 | if (IoIFP(io)) |
af8c498a GS |
365 | Perl_warner(aTHX_ WARN_IO, |
366 | "Filehandle %s opened only for input", | |
367 | SvPV(sv,n_a)); | |
599cee73 | 368 | else if (ckWARN(WARN_CLOSED)) |
af8c498a GS |
369 | Perl_warner(aTHX_ WARN_CLOSED, |
370 | "print on closed filehandle %s", SvPV(sv,n_a)); | |
a0d0e21e | 371 | } |
748a9306 | 372 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
373 | goto just_say_no; |
374 | } | |
375 | else { | |
376 | MARK++; | |
3280af22 | 377 | if (PL_ofslen) { |
a0d0e21e LW |
378 | while (MARK <= SP) { |
379 | if (!do_print(*MARK, fp)) | |
380 | break; | |
381 | MARK++; | |
382 | if (MARK <= SP) { | |
3280af22 | 383 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
384 | MARK--; |
385 | break; | |
386 | } | |
387 | } | |
388 | } | |
389 | } | |
390 | else { | |
391 | while (MARK <= SP) { | |
392 | if (!do_print(*MARK, fp)) | |
393 | break; | |
394 | MARK++; | |
395 | } | |
396 | } | |
397 | if (MARK <= SP) | |
398 | goto just_say_no; | |
399 | else { | |
3280af22 NIS |
400 | if (PL_orslen) |
401 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
402 | goto just_say_no; |
403 | ||
404 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 405 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
406 | goto just_say_no; |
407 | } | |
408 | } | |
409 | SP = ORIGMARK; | |
3280af22 | 410 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
411 | RETURN; |
412 | ||
413 | just_say_no: | |
414 | SP = ORIGMARK; | |
3280af22 | 415 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
416 | RETURN; |
417 | } | |
418 | ||
419 | PP(pp_rv2av) | |
420 | { | |
f5284f61 | 421 | djSP; dTOPss; |
a0d0e21e LW |
422 | AV *av; |
423 | ||
424 | if (SvROK(sv)) { | |
425 | wasref: | |
f5284f61 IZ |
426 | tryAMAGICunDEREF(to_av); |
427 | ||
a0d0e21e LW |
428 | av = (AV*)SvRV(sv); |
429 | if (SvTYPE(av) != SVt_PVAV) | |
cea2e8a9 | 430 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a | 431 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 432 | SETs((SV*)av); |
a0d0e21e LW |
433 | RETURN; |
434 | } | |
435 | } | |
436 | else { | |
437 | if (SvTYPE(sv) == SVt_PVAV) { | |
438 | av = (AV*)sv; | |
533c011a | 439 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 440 | SETs((SV*)av); |
a0d0e21e LW |
441 | RETURN; |
442 | } | |
443 | } | |
444 | else { | |
67955e0c | 445 | GV *gv; |
446 | ||
a0d0e21e | 447 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 448 | char *sym; |
2d8e6c8d | 449 | STRLEN n_a; |
748a9306 | 450 | |
a0d0e21e LW |
451 | if (SvGMAGICAL(sv)) { |
452 | mg_get(sv); | |
453 | if (SvROK(sv)) | |
454 | goto wasref; | |
455 | } | |
456 | if (!SvOK(sv)) { | |
533c011a NIS |
457 | if (PL_op->op_flags & OPf_REF || |
458 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 459 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 | 460 | if (ckWARN(WARN_UNINITIALIZED)) |
cea2e8a9 | 461 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit); |
f5284f61 | 462 | if (GIMME == G_ARRAY) { |
c2444246 | 463 | (void)POPs; |
4633a7c4 | 464 | RETURN; |
f5284f61 IZ |
465 | } |
466 | RETSETUNDEF; | |
a0d0e21e | 467 | } |
2d8e6c8d | 468 | sym = SvPV(sv,n_a); |
35cd451c GS |
469 | if ((PL_op->op_flags & OPf_SPECIAL) && |
470 | !(PL_op->op_flags & OPf_MOD)) | |
471 | { | |
472 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); | |
473 | if (!gv) | |
474 | RETSETUNDEF; | |
475 | } | |
476 | else { | |
477 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 478 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c GS |
479 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
480 | } | |
481 | } | |
482 | else { | |
67955e0c | 483 | gv = (GV*)sv; |
a0d0e21e | 484 | } |
67955e0c | 485 | av = GvAVn(gv); |
533c011a | 486 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 487 | av = save_ary(gv); |
533c011a | 488 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 489 | SETs((SV*)av); |
a0d0e21e LW |
490 | RETURN; |
491 | } | |
492 | } | |
493 | } | |
494 | ||
495 | if (GIMME == G_ARRAY) { | |
496 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 497 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 NIS |
498 | EXTEND(SP, maxarg); |
499 | if (SvRMAGICAL(av)) { | |
500 | U32 i; | |
501 | for (i=0; i < maxarg; i++) { | |
502 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 503 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
504 | } |
505 | } | |
506 | else { | |
507 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
508 | } | |
a0d0e21e LW |
509 | SP += maxarg; |
510 | } | |
511 | else { | |
512 | dTARGET; | |
513 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 514 | SETi(maxarg); |
a0d0e21e LW |
515 | } |
516 | RETURN; | |
517 | } | |
518 | ||
519 | PP(pp_rv2hv) | |
520 | { | |
4e35701f | 521 | djSP; dTOPss; |
a0d0e21e LW |
522 | HV *hv; |
523 | ||
524 | if (SvROK(sv)) { | |
525 | wasref: | |
f5284f61 IZ |
526 | tryAMAGICunDEREF(to_hv); |
527 | ||
a0d0e21e | 528 | hv = (HV*)SvRV(sv); |
c750a3ec | 529 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 | 530 | DIE(aTHX_ "Not a HASH reference"); |
533c011a | 531 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
532 | SETs((SV*)hv); |
533 | RETURN; | |
534 | } | |
535 | } | |
536 | else { | |
c750a3ec | 537 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 538 | hv = (HV*)sv; |
533c011a | 539 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
540 | SETs((SV*)hv); |
541 | RETURN; | |
542 | } | |
543 | } | |
544 | else { | |
67955e0c | 545 | GV *gv; |
546 | ||
a0d0e21e | 547 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 548 | char *sym; |
2d8e6c8d | 549 | STRLEN n_a; |
748a9306 | 550 | |
a0d0e21e LW |
551 | if (SvGMAGICAL(sv)) { |
552 | mg_get(sv); | |
553 | if (SvROK(sv)) | |
554 | goto wasref; | |
555 | } | |
556 | if (!SvOK(sv)) { | |
533c011a NIS |
557 | if (PL_op->op_flags & OPf_REF || |
558 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 559 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 | 560 | if (ckWARN(WARN_UNINITIALIZED)) |
cea2e8a9 | 561 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit); |
4633a7c4 LW |
562 | if (GIMME == G_ARRAY) { |
563 | SP--; | |
564 | RETURN; | |
565 | } | |
a0d0e21e LW |
566 | RETSETUNDEF; |
567 | } | |
2d8e6c8d | 568 | sym = SvPV(sv,n_a); |
35cd451c GS |
569 | if ((PL_op->op_flags & OPf_SPECIAL) && |
570 | !(PL_op->op_flags & OPf_MOD)) | |
571 | { | |
572 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); | |
573 | if (!gv) | |
574 | RETSETUNDEF; | |
575 | } | |
576 | else { | |
577 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 578 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c GS |
579 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
580 | } | |
581 | } | |
582 | else { | |
67955e0c | 583 | gv = (GV*)sv; |
a0d0e21e | 584 | } |
67955e0c | 585 | hv = GvHVn(gv); |
533c011a | 586 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 587 | hv = save_hash(gv); |
533c011a | 588 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
589 | SETs((SV*)hv); |
590 | RETURN; | |
591 | } | |
592 | } | |
593 | } | |
594 | ||
595 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 596 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 | 597 | return do_kv(); |
a0d0e21e LW |
598 | } |
599 | else { | |
600 | dTARGET; | |
4b154ab5 GA |
601 | if (SvTYPE(hv) == SVt_PVAV) |
602 | hv = avhv_keys((AV*)hv); | |
46fc3d4c | 603 | if (HvFILL(hv)) |
cea2e8a9 | 604 | Perl_sv_setpvf(aTHX_ TARG, "%ld/%ld", |
46fc3d4c | 605 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); |
a0d0e21e LW |
606 | else |
607 | sv_setiv(TARG, 0); | |
c750a3ec | 608 | |
a0d0e21e LW |
609 | SETTARG; |
610 | RETURN; | |
611 | } | |
612 | } | |
613 | ||
614 | PP(pp_aassign) | |
615 | { | |
4e35701f | 616 | djSP; |
3280af22 NIS |
617 | SV **lastlelem = PL_stack_sp; |
618 | SV **lastrelem = PL_stack_base + POPMARK; | |
619 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
620 | SV **firstlelem = lastrelem + 1; |
621 | ||
622 | register SV **relem; | |
623 | register SV **lelem; | |
624 | ||
625 | register SV *sv; | |
626 | register AV *ary; | |
627 | ||
54310121 | 628 | I32 gimme; |
a0d0e21e LW |
629 | HV *hash; |
630 | I32 i; | |
631 | int magic; | |
632 | ||
3280af22 | 633 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
634 | |
635 | /* If there's a common identifier on both sides we have to take | |
636 | * special care that assigning the identifier on the left doesn't | |
637 | * clobber a value on the right that's used later in the list. | |
638 | */ | |
533c011a | 639 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 | 640 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e LW |
641 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
642 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
643 | if (sv = *relem) { |
644 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 645 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 646 | } |
a0d0e21e LW |
647 | } |
648 | } | |
649 | ||
650 | relem = firstrelem; | |
651 | lelem = firstlelem; | |
652 | ary = Null(AV*); | |
653 | hash = Null(HV*); | |
654 | while (lelem <= lastlelem) { | |
bbce6d69 | 655 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
656 | sv = *lelem++; |
657 | switch (SvTYPE(sv)) { | |
658 | case SVt_PVAV: | |
659 | ary = (AV*)sv; | |
748a9306 | 660 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
661 | |
662 | av_clear(ary); | |
7e42bd57 | 663 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
664 | i = 0; |
665 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 666 | SV **didstore; |
a0d0e21e LW |
667 | sv = NEWSV(28,0); |
668 | assert(*relem); | |
669 | sv_setsv(sv,*relem); | |
670 | *(relem++) = sv; | |
5117ca91 GS |
671 | didstore = av_store(ary,i++,sv); |
672 | if (magic) { | |
fb73857a | 673 | if (SvSMAGICAL(sv)) |
674 | mg_set(sv); | |
5117ca91 | 675 | if (!didstore) |
8127e0e3 | 676 | sv_2mortal(sv); |
5117ca91 | 677 | } |
bbce6d69 | 678 | TAINT_NOT; |
a0d0e21e LW |
679 | } |
680 | break; | |
681 | case SVt_PVHV: { | |
a0d0e21e LW |
682 | SV *tmpstr; |
683 | ||
684 | hash = (HV*)sv; | |
748a9306 | 685 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
686 | hv_clear(hash); |
687 | ||
688 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 689 | HE *didstore; |
4633a7c4 | 690 | if (*relem) |
a0d0e21e | 691 | sv = *(relem++); |
4633a7c4 | 692 | else |
3280af22 | 693 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
694 | tmpstr = NEWSV(29,0); |
695 | if (*relem) | |
696 | sv_setsv(tmpstr,*relem); /* value */ | |
697 | *(relem++) = tmpstr; | |
5117ca91 GS |
698 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
699 | if (magic) { | |
fb73857a | 700 | if (SvSMAGICAL(tmpstr)) |
701 | mg_set(tmpstr); | |
5117ca91 | 702 | if (!didstore) |
8127e0e3 | 703 | sv_2mortal(tmpstr); |
5117ca91 | 704 | } |
bbce6d69 | 705 | TAINT_NOT; |
8e07c86e | 706 | } |
6a0deba8 GS |
707 | if (relem == lastrelem) { |
708 | if (*relem) { | |
709 | HE *didstore; | |
599cee73 | 710 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 GS |
711 | if (relem == firstrelem && |
712 | SvROK(*relem) && | |
713 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
714 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) | |
cea2e8a9 | 715 | Perl_warner(aTHX_ WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 | 716 | else |
cea2e8a9 | 717 | Perl_warner(aTHX_ WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 GS |
718 | } |
719 | tmpstr = NEWSV(29,0); | |
720 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
721 | if (magic) { | |
722 | if (SvSMAGICAL(tmpstr)) | |
723 | mg_set(tmpstr); | |
724 | if (!didstore) | |
8127e0e3 | 725 | sv_2mortal(tmpstr); |
6a0deba8 GS |
726 | } |
727 | TAINT_NOT; | |
728 | } | |
729 | relem++; | |
1930e939 | 730 | } |
a0d0e21e LW |
731 | } |
732 | break; | |
733 | default: | |
6fc92669 GS |
734 | if (SvIMMORTAL(sv)) { |
735 | if (relem <= lastrelem) | |
736 | relem++; | |
737 | break; | |
a0d0e21e LW |
738 | } |
739 | if (relem <= lastrelem) { | |
740 | sv_setsv(sv, *relem); | |
741 | *(relem++) = sv; | |
742 | } | |
743 | else | |
3280af22 | 744 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
745 | SvSETMAGIC(sv); |
746 | break; | |
747 | } | |
748 | } | |
3280af22 NIS |
749 | if (PL_delaymagic & ~DM_DELAY) { |
750 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 751 | #ifdef HAS_SETRESUID |
b28d0864 | 752 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
753 | #else |
754 | # ifdef HAS_SETREUID | |
3280af22 | 755 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
756 | # else |
757 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
758 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
759 | (void)setruid(PL_uid); | |
760 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 761 | } |
56febc5e AD |
762 | # endif /* HAS_SETRUID */ |
763 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
764 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
765 | (void)seteuid(PL_uid); | |
766 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 767 | } |
56febc5e | 768 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
769 | if (PL_delaymagic & DM_UID) { |
770 | if (PL_uid != PL_euid) | |
cea2e8a9 | 771 | DIE(aTHX_ "No setreuid available"); |
b28d0864 | 772 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 773 | } |
56febc5e AD |
774 | # endif /* HAS_SETREUID */ |
775 | #endif /* HAS_SETRESUID */ | |
3280af22 NIS |
776 | PL_uid = (int)PerlProc_getuid(); |
777 | PL_euid = (int)PerlProc_geteuid(); | |
a0d0e21e | 778 | } |
3280af22 | 779 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 780 | #ifdef HAS_SETRESGID |
b28d0864 | 781 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
782 | #else |
783 | # ifdef HAS_SETREGID | |
3280af22 | 784 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
785 | # else |
786 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
787 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
788 | (void)setrgid(PL_gid); | |
789 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 790 | } |
56febc5e AD |
791 | # endif /* HAS_SETRGID */ |
792 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
793 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
794 | (void)setegid(PL_gid); | |
795 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 796 | } |
56febc5e | 797 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
798 | if (PL_delaymagic & DM_GID) { |
799 | if (PL_gid != PL_egid) | |
cea2e8a9 | 800 | DIE(aTHX_ "No setregid available"); |
b28d0864 | 801 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 802 | } |
56febc5e AD |
803 | # endif /* HAS_SETREGID */ |
804 | #endif /* HAS_SETRESGID */ | |
3280af22 NIS |
805 | PL_gid = (int)PerlProc_getgid(); |
806 | PL_egid = (int)PerlProc_getegid(); | |
a0d0e21e | 807 | } |
3280af22 | 808 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 809 | } |
3280af22 | 810 | PL_delaymagic = 0; |
54310121 | 811 | |
812 | gimme = GIMME_V; | |
813 | if (gimme == G_VOID) | |
814 | SP = firstrelem - 1; | |
815 | else if (gimme == G_SCALAR) { | |
816 | dTARGET; | |
817 | SP = firstrelem; | |
818 | SETi(lastrelem - firstrelem + 1); | |
819 | } | |
820 | else { | |
a0d0e21e LW |
821 | if (ary || hash) |
822 | SP = lastrelem; | |
823 | else | |
824 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 825 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 826 | while (relem <= SP) |
3280af22 | 827 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 828 | } |
54310121 | 829 | RETURN; |
a0d0e21e LW |
830 | } |
831 | ||
8782bef2 GB |
832 | PP(pp_qr) |
833 | { | |
834 | djSP; | |
835 | register PMOP *pm = cPMOP; | |
836 | SV *rv = sv_newmortal(); | |
57668c4d | 837 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
838 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
839 | RETURNX(PUSHs(rv)); | |
840 | } | |
841 | ||
a0d0e21e LW |
842 | PP(pp_match) |
843 | { | |
4e35701f | 844 | djSP; dTARG; |
a0d0e21e LW |
845 | register PMOP *pm = cPMOP; |
846 | register char *t; | |
847 | register char *s; | |
848 | char *strend; | |
849 | I32 global; | |
f722798b IZ |
850 | I32 r_flags = REXEC_CHECKED; |
851 | char *truebase; /* Start of string */ | |
d9f97599 | 852 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 853 | bool rxtainted; |
a0d0e21e LW |
854 | I32 gimme = GIMME; |
855 | STRLEN len; | |
748a9306 | 856 | I32 minmatch = 0; |
3280af22 | 857 | I32 oldsave = PL_savestack_ix; |
f86702cc | 858 | I32 update_minmatch = 1; |
e60df1fa | 859 | I32 had_zerolen = 0; |
a0d0e21e | 860 | |
533c011a | 861 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
862 | TARG = POPs; |
863 | else { | |
54b9620d | 864 | TARG = DEFSV; |
a0d0e21e LW |
865 | EXTEND(SP,1); |
866 | } | |
c277df42 | 867 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
868 | s = SvPV(TARG, len); |
869 | strend = s + len; | |
870 | if (!s) | |
cea2e8a9 | 871 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b | 872 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 873 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 874 | TAINT_NOT; |
a0d0e21e | 875 | |
48c036b1 | 876 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 877 | failure: |
a0d0e21e LW |
878 | if (gimme == G_ARRAY) |
879 | RETURN; | |
880 | RETPUSHNO; | |
881 | } | |
882 | ||
3280af22 NIS |
883 | if (!rx->prelen && PL_curpm) { |
884 | pm = PL_curpm; | |
d9f97599 | 885 | rx = pm->op_pmregexp; |
a0d0e21e | 886 | } |
d9f97599 | 887 | if (rx->minlen > len) goto failure; |
c277df42 | 888 | |
a0d0e21e | 889 | truebase = t = s; |
ad94a511 IZ |
890 | |
891 | /* XXXX What part of this is needed with true \G-support? */ | |
a0d0e21e | 892 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
cf93c79d | 893 | rx->startp[0] = -1; |
a0d0e21e LW |
894 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
895 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 896 | if (mg && mg->mg_len >= 0) { |
b7a35066 | 897 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d | 898 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e HS |
899 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
900 | r_flags |= REXEC_IGNOREPOS; | |
cf93c79d | 901 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e | 902 | } |
748a9306 | 903 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 904 | update_minmatch = 0; |
748a9306 | 905 | } |
a0d0e21e LW |
906 | } |
907 | } | |
0ef3e39e HS |
908 | if ((gimme != G_ARRAY && !global && rx->nparens) |
909 | || SvTEMP(TARG) || PL_sawampersand) | |
910 | r_flags |= REXEC_COPY_STR; | |
f722798b | 911 | if (SvSCREAM(TARG)) |
22e551b9 IZ |
912 | r_flags |= REXEC_SCREAM; |
913 | ||
a0d0e21e | 914 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
915 | SAVEINT(PL_multiline); |
916 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
917 | } |
918 | ||
919 | play_it_again: | |
cf93c79d IZ |
920 | if (global && rx->startp[0] != -1) { |
921 | t = s = rx->endp[0] + truebase; | |
d9f97599 | 922 | if ((s + rx->minlen) > strend) |
a0d0e21e | 923 | goto nope; |
f86702cc | 924 | if (update_minmatch++) |
e60df1fa | 925 | minmatch = had_zerolen; |
a0d0e21e | 926 | } |
f722798b IZ |
927 | if (rx->reganch & RE_USE_INTUIT) { |
928 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
929 | ||
930 | if (!s) | |
931 | goto nope; | |
932 | if ( (rx->reganch & ROPT_CHECK_ALL) | |
933 | && !PL_sawampersand | |
934 | && ((rx->reganch & ROPT_NOSCAN) | |
935 | || !((rx->reganch & RE_INTUIT_TAIL) | |
936 | && (r_flags & REXEC_SCREAM)))) | |
937 | goto yup; | |
a0d0e21e | 938 | } |
cea2e8a9 | 939 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 940 | { |
3280af22 | 941 | PL_curpm = pm; |
a0d0e21e | 942 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 943 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
944 | goto gotcha; |
945 | } | |
946 | else | |
947 | goto ret_no; | |
948 | /*NOTREACHED*/ | |
949 | ||
950 | gotcha: | |
72311751 GS |
951 | if (rxtainted) |
952 | RX_MATCH_TAINTED_on(rx); | |
953 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
954 | if (gimme == G_ARRAY) { |
955 | I32 iters, i, len; | |
956 | ||
d9f97599 | 957 | iters = rx->nparens; |
a0d0e21e LW |
958 | if (global && !iters) |
959 | i = 1; | |
960 | else | |
961 | i = 0; | |
c277df42 | 962 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 963 | EXTEND(SP, iters + i); |
bbce6d69 | 964 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
965 | for (i = !i; i <= iters; i++) { |
966 | PUSHs(sv_newmortal()); | |
967 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
968 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
969 | len = rx->endp[i] - rx->startp[i]; | |
970 | s = rx->startp[i] + truebase; | |
a0d0e21e LW |
971 | sv_setpvn(*SP, s, len); |
972 | } | |
973 | } | |
974 | if (global) { | |
cf93c79d IZ |
975 | had_zerolen = (rx->startp[0] != -1 |
976 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 977 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 978 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
979 | goto play_it_again; |
980 | } | |
f7e33566 | 981 | else if (!iters) |
bde848c5 | 982 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 983 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
984 | RETURN; |
985 | } | |
986 | else { | |
987 | if (global) { | |
988 | MAGIC* mg = 0; | |
989 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
990 | mg = mg_find(TARG, 'g'); | |
991 | if (!mg) { | |
992 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
993 | mg = mg_find(TARG, 'g'); | |
994 | } | |
cf93c79d IZ |
995 | if (rx->startp[0] != -1) { |
996 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 997 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
998 | mg->mg_flags |= MGf_MINMATCH; |
999 | else | |
1000 | mg->mg_flags &= ~MGf_MINMATCH; | |
1001 | } | |
a0d0e21e | 1002 | } |
4633a7c4 | 1003 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1004 | RETPUSHYES; |
1005 | } | |
1006 | ||
f722798b | 1007 | yup: /* Confirmed by INTUIT */ |
72311751 GS |
1008 | if (rxtainted) |
1009 | RX_MATCH_TAINTED_on(rx); | |
1010 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
3280af22 | 1011 | PL_curpm = pm; |
a0d0e21e | 1012 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1013 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1014 | if (RX_MATCH_COPIED(rx)) |
1015 | Safefree(rx->subbeg); | |
1016 | RX_MATCH_COPIED_off(rx); | |
1017 | rx->subbeg = Nullch; | |
a0d0e21e | 1018 | if (global) { |
d9f97599 | 1019 | rx->subbeg = truebase; |
cf93c79d | 1020 | rx->startp[0] = s - truebase; |
f722798b | 1021 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d | 1022 | rx->sublen = strend - truebase; |
a0d0e21e | 1023 | goto gotcha; |
cf93c79d | 1024 | } |
3280af22 | 1025 | if (PL_sawampersand) { |
cf93c79d | 1026 | I32 off; |
a0d0e21e | 1027 | |
cf93c79d IZ |
1028 | rx->subbeg = savepvn(t, strend - t); |
1029 | rx->sublen = strend - t; | |
1030 | RX_MATCH_COPIED_on(rx); | |
1031 | off = rx->startp[0] = s - t; | |
f722798b | 1032 | rx->endp[0] = off + rx->minlen; |
cf93c79d IZ |
1033 | } |
1034 | else { /* startp/endp are used by @- @+. */ | |
1035 | rx->startp[0] = s - truebase; | |
f722798b | 1036 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e | 1037 | } |
4633a7c4 | 1038 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1039 | RETPUSHYES; |
1040 | ||
1041 | nope: | |
a0d0e21e | 1042 | ret_no: |
c90c0ff4 | 1043 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1044 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1045 | MAGIC* mg = mg_find(TARG, 'g'); | |
1046 | if (mg) | |
565764a8 | 1047 | mg->mg_len = -1; |
a0d0e21e LW |
1048 | } |
1049 | } | |
4633a7c4 | 1050 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1051 | if (gimme == G_ARRAY) |
1052 | RETURN; | |
1053 | RETPUSHNO; | |
1054 | } | |
1055 | ||
1056 | OP * | |
864dbfa3 | 1057 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1058 | { |
1059 | dSP; dTARGETSTACKED; | |
1060 | register SV *sv; | |
1061 | STRLEN tmplen = 0; | |
1062 | STRLEN offset; | |
760ac839 | 1063 | PerlIO *fp; |
3280af22 | 1064 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1065 | register I32 type = PL_op->op_type; |
54310121 | 1066 | I32 gimme = GIMME_V; |
e79b0511 | 1067 | MAGIC *mg; |
a0d0e21e | 1068 | |
33c27489 | 1069 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 | 1070 | PUSHMARK(SP); |
33c27489 | 1071 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1072 | PUTBACK; |
1073 | ENTER; | |
864dbfa3 | 1074 | call_method("READLINE", gimme); |
e79b0511 | 1075 | LEAVE; |
1076 | SPAGAIN; | |
54310121 | 1077 | if (gimme == G_SCALAR) |
1078 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1079 | RETURN; |
1080 | } | |
a0d0e21e LW |
1081 | fp = Nullfp; |
1082 | if (io) { | |
1083 | fp = IoIFP(io); | |
1084 | if (!fp) { | |
1085 | if (IoFLAGS(io) & IOf_ARGV) { | |
1086 | if (IoFLAGS(io) & IOf_START) { | |
1087 | IoFLAGS(io) &= ~IOf_START; | |
1088 | IoLINES(io) = 0; | |
3280af22 | 1089 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 | 1090 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1091 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1092 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1093 | fp = IoIFP(io); |
1094 | goto have_fp; | |
a0d0e21e LW |
1095 | } |
1096 | } | |
3280af22 | 1097 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1098 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1099 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1100 | IoFLAGS(io) |= IOf_START; |
1101 | } | |
1102 | } | |
1103 | else if (type == OP_GLOB) { | |
1104 | SV *tmpcmd = NEWSV(55, 0); | |
1105 | SV *tmpglob = POPs; | |
1106 | ENTER; | |
1107 | SAVEFREESV(tmpcmd); | |
1108 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1109 | /* since spawning off a process is a real performance hit */ | |
1110 | { | |
1111 | #include <descrip.h> | |
1112 | #include <lib$routines.h> | |
1113 | #include <nam.h> | |
1114 | #include <rmsdef.h> | |
1115 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1116 | char vmsspec[NAM$C_MAXRSS+1]; | |
1117 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1118 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1119 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1120 | PerlIO *tmpfp; |
a0d0e21e LW |
1121 | STRLEN i; |
1122 | struct dsc$descriptor_s wilddsc | |
1123 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1124 | struct dsc$descriptor_vs rsdsc | |
1125 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1126 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1127 | ||
1128 | /* We could find out if there's an explicit dev/dir or version | |
1129 | by peeking into lib$find_file's internal context at | |
1130 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1131 | but that's unsupported, so I don't want to do it now and | |
1132 | have it bite someone in the future. */ | |
6ad3d225 | 1133 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1134 | cp = SvPV(tmpglob,i); |
1135 | for (; i; i--) { | |
1136 | if (cp[i] == ';') hasver = 1; | |
1137 | if (cp[i] == '.') { | |
1138 | if (sts) hasver = 1; | |
1139 | else sts = 1; | |
1140 | } | |
1141 | if (cp[i] == '/') { | |
1142 | hasdir = isunix = 1; | |
1143 | break; | |
748a9306 | 1144 | } |
a0d0e21e LW |
1145 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1146 | hasdir = 1; | |
1147 | break; | |
1148 | } | |
1149 | } | |
760ac839 | 1150 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1151 | Stat_t st; |
c6ed36e1 | 1152 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1153 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1154 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1155 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1156 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1157 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1158 | end = rstr + (unsigned long int) *rslt; | |
1159 | if (!hasver) while (*end != ';') end--; | |
1160 | *(end++) = '\n'; *end = '\0'; | |
1161 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1162 | if (hasdir) { | |
f86702cc | 1163 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1164 | begin = rstr; |
1165 | } | |
1166 | else { | |
1167 | begin = end; | |
1168 | while (*(--begin) != ']' && *begin != '>') ; | |
1169 | ++begin; | |
1170 | } | |
760ac839 | 1171 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1172 | } |
1173 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1174 | if (ok && sts != RMS$_NMF && |
1175 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1176 | if (!ok) { |
c07a80fd | 1177 | if (!(sts & 1)) { |
1178 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1179 | } | |
760ac839 | 1180 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1181 | fp = NULL; |
1182 | } | |
1183 | else { | |
760ac839 | 1184 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1185 | IoTYPE(io) = '<'; |
1186 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1187 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1188 | } |
1189 | } | |
1190 | } | |
1191 | #else /* !VMS */ | |
1192 | #ifdef DOSISH | |
67955e0c | 1193 | #ifdef OS2 |
1194 | sv_setpv(tmpcmd, "for a in "); | |
1195 | sv_catsv(tmpcmd, tmpglob); | |
1196 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1197 | #else | |
39e571d4 LM |
1198 | #ifdef DJGPP |
1199 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1200 | sv_catsv(tmpcmd, tmpglob); | |
1201 | #else | |
a0d0e21e LW |
1202 | sv_setpv(tmpcmd, "perlglob "); |
1203 | sv_catsv(tmpcmd, tmpglob); | |
1204 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1205 | #endif /* !DJGPP */ |
67955e0c | 1206 | #endif /* !OS2 */ |
1207 | #else /* !DOSISH */ | |
1208 | #if defined(CSH) | |
3280af22 | 1209 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1210 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1211 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1212 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1213 | #else |
1214 | sv_setpv(tmpcmd, "echo "); | |
1215 | sv_catsv(tmpcmd, tmpglob); | |
1216 | #if 'z' - 'a' == 25 | |
1217 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1218 | #else | |
1219 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1220 | #endif | |
1221 | #endif /* !CSH */ | |
67955e0c | 1222 | #endif /* !DOSISH */ |
3280af22 | 1223 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1224 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1225 | fp = IoIFP(io); |
1226 | #endif /* !VMS */ | |
1227 | LEAVE; | |
1228 | } | |
1229 | } | |
1230 | else if (type == OP_GLOB) | |
1231 | SP--; | |
af8c498a GS |
1232 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1233 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() | |
1234 | || fp == PerlIO_stderr())) | |
1235 | { | |
1236 | SV* sv = sv_newmortal(); | |
1237 | gv_efullname3(sv, PL_last_in_gv, Nullch); | |
1238 | Perl_warner(aTHX_ WARN_IO, "Filehandle %s opened only for output", | |
1239 | SvPV_nolen(sv)); | |
1240 | } | |
a0d0e21e LW |
1241 | } |
1242 | if (!fp) { | |
3f4520fe GS |
1243 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
1244 | if (type == OP_GLOB) | |
af8c498a GS |
1245 | Perl_warner(aTHX_ WARN_CLOSED, |
1246 | "glob failed (can't start child: %s)", | |
1247 | Strerror(errno)); | |
1248 | else { | |
1249 | SV* sv = sv_newmortal(); | |
1250 | gv_efullname3(sv, PL_last_in_gv, Nullch); | |
1251 | Perl_warner(aTHX_ WARN_CLOSED, | |
1252 | "Read on closed filehandle %s", | |
1253 | SvPV_nolen(sv)); | |
1254 | } | |
3f4520fe | 1255 | } |
54310121 | 1256 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1257 | (void)SvOK_off(TARG); |
1258 | PUSHTARG; | |
1259 | } | |
1260 | RETURN; | |
1261 | } | |
a2008d6d | 1262 | have_fp: |
54310121 | 1263 | if (gimme == G_SCALAR) { |
a0d0e21e | 1264 | sv = TARG; |
9607fc9c | 1265 | if (SvROK(sv)) |
1266 | sv_unref(sv); | |
a0d0e21e LW |
1267 | (void)SvUPGRADE(sv, SVt_PV); |
1268 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1269 | if (!tmplen) | |
1270 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1271 | if (type == OP_RCATLINE) | |
1272 | offset = SvCUR(sv); | |
1273 | else | |
1274 | offset = 0; | |
1275 | } | |
54310121 | 1276 | else { |
1277 | sv = sv_2mortal(NEWSV(57, 80)); | |
1278 | offset = 0; | |
1279 | } | |
fbad3eb5 GS |
1280 | |
1281 | /* flip-flop EOF state for a snarfed empty file */ | |
1282 | #define SNARF_EOF(gimme,rs,io,sv) \ | |
1283 | ((gimme != G_SCALAR || SvCUR(sv) \ | |
1284 | || (IoFLAGS(io) & IOf_NOLINE) || IoLINES(io) || !RsSNARF(rs)) \ | |
1285 | ? ((IoFLAGS(io) &= ~IOf_NOLINE), TRUE) \ | |
1286 | : ((IoFLAGS(io) |= IOf_NOLINE), FALSE)) | |
1287 | ||
a0d0e21e | 1288 | for (;;) { |
fbad3eb5 GS |
1289 | if (!sv_gets(sv, fp, offset) |
1290 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1291 | { | |
760ac839 | 1292 | PerlIO_clearerr(fp); |
a0d0e21e | 1293 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1294 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1295 | if (fp) |
1296 | continue; | |
3280af22 | 1297 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1298 | IoFLAGS(io) |= IOf_START; |
1299 | } | |
1300 | else if (type == OP_GLOB) { | |
4eb79ab5 | 1301 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
cea2e8a9 | 1302 | Perl_warner(aTHX_ WARN_CLOSED, |
4eb79ab5 GS |
1303 | "glob failed (child exited with status %d%s)", |
1304 | STATUS_CURRENT >> 8, | |
cf494569 | 1305 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1306 | } |
a0d0e21e | 1307 | } |
54310121 | 1308 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1309 | (void)SvOK_off(TARG); |
1310 | PUSHTARG; | |
1311 | } | |
1312 | RETURN; | |
1313 | } | |
bbce6d69 | 1314 | /* This should not be marked tainted if the fp is marked clean */ |
1315 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1316 | TAINT; | |
1317 | SvTAINTED_on(sv); | |
1318 | } | |
a0d0e21e | 1319 | IoLINES(io)++; |
71be2cbc | 1320 | SvSETMAGIC(sv); |
a0d0e21e | 1321 | XPUSHs(sv); |
a0d0e21e LW |
1322 | if (type == OP_GLOB) { |
1323 | char *tmps; | |
1324 | ||
3280af22 | 1325 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1326 | tmps = SvEND(sv) - 1; |
3280af22 | 1327 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1328 | *tmps = '\0'; |
1329 | SvCUR(sv)--; | |
1330 | } | |
1331 | } | |
a0d0e21e LW |
1332 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1333 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1334 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1335 | break; | |
43384a1a | 1336 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1337 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1338 | continue; | |
1339 | } | |
1340 | } | |
54310121 | 1341 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1342 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1343 | SvLEN_set(sv, SvCUR(sv)+1); | |
1344 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1345 | } | |
1346 | sv = sv_2mortal(NEWSV(58, 80)); | |
1347 | continue; | |
1348 | } | |
54310121 | 1349 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1350 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1351 | if (SvCUR(sv) < 60) | |
1352 | SvLEN_set(sv, 80); | |
1353 | else | |
1354 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1355 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1356 | } | |
1357 | RETURN; | |
1358 | } | |
1359 | } | |
1360 | ||
1361 | PP(pp_enter) | |
1362 | { | |
4e35701f | 1363 | djSP; |
c09156bb | 1364 | register PERL_CONTEXT *cx; |
533c011a | 1365 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1366 | |
54310121 | 1367 | if (gimme == -1) { |
1368 | if (cxstack_ix >= 0) | |
1369 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1370 | else | |
1371 | gimme = G_SCALAR; | |
1372 | } | |
a0d0e21e LW |
1373 | |
1374 | ENTER; | |
1375 | ||
1376 | SAVETMPS; | |
924508f0 | 1377 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1378 | |
1379 | RETURN; | |
1380 | } | |
1381 | ||
1382 | PP(pp_helem) | |
1383 | { | |
4e35701f | 1384 | djSP; |
760ac839 | 1385 | HE* he; |
ae77835f | 1386 | SV **svp; |
a0d0e21e | 1387 | SV *keysv = POPs; |
a0d0e21e | 1388 | HV *hv = (HV*)POPs; |
533c011a NIS |
1389 | U32 lval = PL_op->op_flags & OPf_MOD; |
1390 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1391 | SV *sv; |
a0d0e21e | 1392 | |
ae77835f MB |
1393 | if (SvTYPE(hv) == SVt_PVHV) { |
1394 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1395 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1396 | } |
1397 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 | 1398 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 | 1399 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 | 1400 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1401 | } |
c750a3ec | 1402 | else { |
a0d0e21e | 1403 | RETPUSHUNDEF; |
c750a3ec | 1404 | } |
a0d0e21e | 1405 | if (lval) { |
3280af22 | 1406 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1407 | SV* lv; |
1408 | SV* key2; | |
2d8e6c8d GS |
1409 | if (!defer) { |
1410 | STRLEN n_a; | |
cea2e8a9 | 1411 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d | 1412 | } |
68dc0745 | 1413 | lv = sv_newmortal(); |
1414 | sv_upgrade(lv, SVt_PVLV); | |
1415 | LvTYPE(lv) = 'y'; | |
1416 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1417 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1418 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1419 | LvTARGLEN(lv) = 1; | |
1420 | PUSHs(lv); | |
1421 | RETURN; | |
1422 | } | |
533c011a | 1423 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1424 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1425 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1426 | else |
161b7d16 | 1427 | save_helem(hv, keysv, svp); |
5f05dabc | 1428 | } |
533c011a NIS |
1429 | else if (PL_op->op_private & OPpDEREF) |
1430 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1431 | } |
3280af22 | 1432 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1433 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1434 | * Pushing the magical RHS on to the stack is useless, since | |
1435 | * that magic is soon destined to be misled by the local(), | |
1436 | * and thus the later pp_sassign() will fail to mg_get() the | |
1437 | * old value. This should also cure problems with delayed | |
1438 | * mg_get()s. GSAR 98-07-03 */ | |
1439 | if (!lval && SvGMAGICAL(sv)) | |
1440 | sv = sv_mortalcopy(sv); | |
1441 | PUSHs(sv); | |
a0d0e21e LW |
1442 | RETURN; |
1443 | } | |
1444 | ||
1445 | PP(pp_leave) | |
1446 | { | |
4e35701f | 1447 | djSP; |
c09156bb | 1448 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1449 | register SV **mark; |
1450 | SV **newsp; | |
1451 | PMOP *newpm; | |
1452 | I32 gimme; | |
1453 | ||
533c011a | 1454 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1455 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1456 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1457 | } |
1458 | ||
1459 | POPBLOCK(cx,newpm); | |
1460 | ||
533c011a | 1461 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1462 | if (gimme == -1) { |
1463 | if (cxstack_ix >= 0) | |
1464 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1465 | else | |
1466 | gimme = G_SCALAR; | |
1467 | } | |
a0d0e21e | 1468 | |
a1f49e72 | 1469 | TAINT_NOT; |
54310121 | 1470 | if (gimme == G_VOID) |
1471 | SP = newsp; | |
1472 | else if (gimme == G_SCALAR) { | |
1473 | MARK = newsp + 1; | |
1474 | if (MARK <= SP) | |
1475 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1476 | *MARK = TOPs; | |
1477 | else | |
1478 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1479 | else { |
54310121 | 1480 | MEXTEND(mark,0); |
3280af22 | 1481 | *MARK = &PL_sv_undef; |
a0d0e21e | 1482 | } |
54310121 | 1483 | SP = MARK; |
a0d0e21e | 1484 | } |
54310121 | 1485 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1486 | /* in case LEAVE wipes old return values */ |
1487 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1488 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1489 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1490 | TAINT_NOT; /* Each item is independent */ |
1491 | } | |
1492 | } | |
a0d0e21e | 1493 | } |
3280af22 | 1494 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1495 | |
1496 | LEAVE; | |
1497 | ||
1498 | RETURN; | |
1499 | } | |
1500 | ||
1501 | PP(pp_iter) | |
1502 | { | |
4e35701f | 1503 | djSP; |
c09156bb | 1504 | register PERL_CONTEXT *cx; |
5f05dabc | 1505 | SV* sv; |
4633a7c4 | 1506 | AV* av; |
a0d0e21e | 1507 | |
924508f0 | 1508 | EXTEND(SP, 1); |
a0d0e21e | 1509 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1510 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 | 1511 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e | 1512 | |
4633a7c4 | 1513 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1514 | if (SvTYPE(av) != SVt_PVAV) { |
1515 | /* iterate ($min .. $max) */ | |
1516 | if (cx->blk_loop.iterlval) { | |
1517 | /* string increment */ | |
1518 | register SV* cur = cx->blk_loop.iterlval; | |
1519 | STRLEN maxlen; | |
1520 | char *max = SvPV((SV*)av, maxlen); | |
1521 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1522 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1523 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1524 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1525 | { | |
eaa5c2d6 GA |
1526 | /* safe to reuse old SV */ |
1527 | sv_setsv(*cx->blk_loop.itervar, cur); | |
1528 | } | |
1529 | else | |
1530 | #endif | |
1531 | { | |
1532 | /* we need a fresh SV every time so that loop body sees a | |
1533 | * completely new SV for closures/references to work as | |
1534 | * they used to */ | |
1535 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1536 | *cx->blk_loop.itervar = newSVsv(cur); | |
1537 | } | |
89ea2908 GA |
1538 | if (strEQ(SvPVX(cur), max)) |
1539 | sv_setiv(cur, 0); /* terminate next time */ | |
1540 | else | |
1541 | sv_inc(cur); | |
1542 | RETPUSHYES; | |
1543 | } | |
1544 | RETPUSHNO; | |
1545 | } | |
1546 | /* integer increment */ | |
1547 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1548 | RETPUSHNO; | |
7f61b687 | 1549 | |
eaa5c2d6 | 1550 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1551 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1552 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1553 | { | |
eaa5c2d6 GA |
1554 | /* safe to reuse old SV */ |
1555 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); | |
1556 | } | |
1557 | else | |
1558 | #endif | |
1559 | { | |
1560 | /* we need a fresh SV every time so that loop body sees a | |
1561 | * completely new SV for closures/references to work as they | |
1562 | * used to */ | |
1563 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1564 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); | |
1565 | } | |
89ea2908 GA |
1566 | RETPUSHYES; |
1567 | } | |
1568 | ||
1569 | /* iterate array */ | |
3280af22 | 1570 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1571 | RETPUSHNO; |
a0d0e21e | 1572 | |
7a4c00b4 | 1573 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1574 | |
93965878 NIS |
1575 | if (sv = (SvMAGICAL(av)) |
1576 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1577 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1578 | SvTEMP_off(sv); |
a0d0e21e | 1579 | else |
3280af22 NIS |
1580 | sv = &PL_sv_undef; |
1581 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1582 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1583 | if (lv && SvREFCNT(lv) > 1) { |
1584 | SvREFCNT_dec(lv); | |
1585 | lv = Nullsv; | |
1586 | } | |
5f05dabc | 1587 | if (lv) |
1588 | SvREFCNT_dec(LvTARG(lv)); | |
1589 | else { | |
68dc0745 | 1590 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1591 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1592 | LvTYPE(lv) = 'y'; |
68dc0745 | 1593 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1594 | } |
1595 | LvTARG(lv) = SvREFCNT_inc(av); | |
1596 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1597 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1598 | sv = (SV*)lv; |
1599 | } | |
a0d0e21e | 1600 | |
7a4c00b4 | 1601 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1602 | RETPUSHYES; |
1603 | } | |
1604 | ||
1605 | PP(pp_subst) | |
1606 | { | |
4e35701f | 1607 | djSP; dTARG; |
a0d0e21e LW |
1608 | register PMOP *pm = cPMOP; |
1609 | PMOP *rpm = pm; | |
1610 | register SV *dstr; | |
1611 | register char *s; | |
1612 | char *strend; | |
1613 | register char *m; | |
1614 | char *c; | |
1615 | register char *d; | |
1616 | STRLEN clen; | |
1617 | I32 iters = 0; | |
1618 | I32 maxiters; | |
1619 | register I32 i; | |
1620 | bool once; | |
71be2cbc | 1621 | bool rxtainted; |
a0d0e21e | 1622 | char *orig; |
22e551b9 | 1623 | I32 r_flags; |
d9f97599 | 1624 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1625 | STRLEN len; |
1626 | int force_on_match = 0; | |
3280af22 | 1627 | I32 oldsave = PL_savestack_ix; |
c277df42 | 1628 | I32 update_minmatch = 1; |
a0d0e21e | 1629 | |
5cd24f17 | 1630 | /* known replacement string? */ |
1631 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1632 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1633 | TARG = POPs; |
1634 | else { | |
54b9620d | 1635 | TARG = DEFSV; |
a0d0e21e | 1636 | EXTEND(SP,1); |
8ec5e241 | 1637 | } |
68dc0745 | 1638 | if (SvREADONLY(TARG) |
1639 | || (SvTYPE(TARG) > SVt_PVLV | |
1640 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
cea2e8a9 | 1641 | Perl_croak(aTHX_ PL_no_modify); |
8ec5e241 NIS |
1642 | PUTBACK; |
1643 | ||
a0d0e21e | 1644 | s = SvPV(TARG, len); |
68dc0745 | 1645 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1646 | force_on_match = 1; |
b3eb6a9b | 1647 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1648 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1649 | if (PL_tainted) | |
b3eb6a9b | 1650 | rxtainted |= 2; |
9212bbba | 1651 | TAINT_NOT; |
a0d0e21e LW |
1652 | |
1653 | force_it: | |
1654 | if (!pm || !s) | |
cea2e8a9 | 1655 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e LW |
1656 | |
1657 | strend = s + len; | |
2beec16e IZ |
1658 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1659 | position, once with zero-length, | |
1660 | second time with non-zero. */ | |
a0d0e21e | 1661 | |
3280af22 NIS |
1662 | if (!rx->prelen && PL_curpm) { |
1663 | pm = PL_curpm; | |
d9f97599 | 1664 | rx = pm->op_pmregexp; |
a0d0e21e | 1665 | } |
22e551b9 | 1666 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1667 | ? REXEC_COPY_STR : 0; |
f722798b | 1668 | if (SvSCREAM(TARG)) |
22e551b9 | 1669 | r_flags |= REXEC_SCREAM; |
a0d0e21e | 1670 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1671 | SAVEINT(PL_multiline); |
1672 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1673 | } |
1674 | orig = m = s; | |
f722798b IZ |
1675 | if (rx->reganch & RE_USE_INTUIT) { |
1676 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1677 | ||
1678 | if (!s) | |
1679 | goto nope; | |
1680 | /* How to do it in subst? */ | |
1681 | /* if ( (rx->reganch & ROPT_CHECK_ALL) | |
1682 | && !PL_sawampersand | |
1683 | && ((rx->reganch & ROPT_NOSCAN) | |
1684 | || !((rx->reganch & RE_INTUIT_TAIL) | |
1685 | && (r_flags & REXEC_SCREAM)))) | |
1686 | goto yup; | |
1687 | */ | |
a0d0e21e | 1688 | } |
71be2cbc | 1689 | |
1690 | /* only replace once? */ | |
a0d0e21e | 1691 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1692 | |
1693 | /* known replacement string? */ | |
5cd24f17 | 1694 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1695 | |
1696 | /* can do inplace substitution? */ | |
22e551b9 | 1697 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1698 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b IZ |
1699 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1700 | r_flags | REXEC_CHECKED)) | |
1701 | { | |
8ec5e241 | 1702 | SPAGAIN; |
3280af22 | 1703 | PUSHs(&PL_sv_no); |
71be2cbc | 1704 | LEAVE_SCOPE(oldsave); |
1705 | RETURN; | |
1706 | } | |
1707 | if (force_on_match) { | |
1708 | force_on_match = 0; | |
1709 | s = SvPV_force(TARG, len); | |
1710 | goto force_it; | |
1711 | } | |
71be2cbc | 1712 | d = s; |
3280af22 | 1713 | PL_curpm = pm; |
71be2cbc | 1714 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1715 | if (once) { | |
48c036b1 | 1716 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1717 | m = orig + rx->startp[0]; |
1718 | d = orig + rx->endp[0]; | |
71be2cbc | 1719 | s = orig; |
1720 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1721 | if (clen) { | |
1722 | Copy(c, m, clen, char); | |
1723 | m += clen; | |
a0d0e21e | 1724 | } |
71be2cbc | 1725 | i = strend - d; |
1726 | if (i > 0) { | |
1727 | Move(d, m, i, char); | |
1728 | m += i; | |
a0d0e21e | 1729 | } |
71be2cbc | 1730 | *m = '\0'; |
1731 | SvCUR_set(TARG, m - s); | |
1732 | } | |
1733 | /*SUPPRESS 560*/ | |
1734 | else if (i = m - s) { /* faster from front */ | |
1735 | d -= clen; | |
1736 | m = d; | |
1737 | sv_chop(TARG, d-i); | |
1738 | s += i; | |
1739 | while (i--) | |
1740 | *--d = *--s; | |
1741 | if (clen) | |
1742 | Copy(c, m, clen, char); | |
1743 | } | |
1744 | else if (clen) { | |
1745 | d -= clen; | |
1746 | sv_chop(TARG, d); | |
1747 | Copy(c, d, clen, char); | |
1748 | } | |
1749 | else { | |
1750 | sv_chop(TARG, d); | |
1751 | } | |
48c036b1 | 1752 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1753 | SPAGAIN; |
3280af22 | 1754 | PUSHs(&PL_sv_yes); |
71be2cbc | 1755 | } |
1756 | else { | |
71be2cbc | 1757 | do { |
1758 | if (iters++ > maxiters) | |
cea2e8a9 | 1759 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1760 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1761 | m = rx->startp[0] + orig; |
71be2cbc | 1762 | /*SUPPRESS 560*/ |
1763 | if (i = m - s) { | |
1764 | if (s != d) | |
1765 | Move(s, d, i, char); | |
1766 | d += i; | |
a0d0e21e | 1767 | } |
71be2cbc | 1768 | if (clen) { |
1769 | Copy(c, d, clen, char); | |
1770 | d += clen; | |
1771 | } | |
cf93c79d | 1772 | s = rx->endp[0] + orig; |
cea2e8a9 | 1773 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b IZ |
1774 | TARG, NULL, |
1775 | /* don't match same null twice */ | |
1776 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); | |
71be2cbc | 1777 | if (s != d) { |
1778 | i = strend - s; | |
1779 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1780 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1781 | } |
48c036b1 | 1782 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1783 | SPAGAIN; |
71be2cbc | 1784 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1785 | } |
71be2cbc | 1786 | (void)SvPOK_only(TARG); |
48c036b1 | 1787 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1788 | if (SvSMAGICAL(TARG)) { |
1789 | PUTBACK; | |
1790 | mg_set(TARG); | |
1791 | SPAGAIN; | |
1792 | } | |
9212bbba | 1793 | SvTAINT(TARG); |
71be2cbc | 1794 | LEAVE_SCOPE(oldsave); |
1795 | RETURN; | |
a0d0e21e | 1796 | } |
71be2cbc | 1797 | |
f722798b IZ |
1798 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1799 | r_flags | REXEC_CHECKED)) | |
1800 | { | |
a0d0e21e LW |
1801 | if (force_on_match) { |
1802 | force_on_match = 0; | |
1803 | s = SvPV_force(TARG, len); | |
1804 | goto force_it; | |
1805 | } | |
48c036b1 | 1806 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1807 | dstr = NEWSV(25, len); |
a0d0e21e | 1808 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1809 | PL_curpm = pm; |
a0d0e21e | 1810 | if (!c) { |
c09156bb | 1811 | register PERL_CONTEXT *cx; |
8ec5e241 | 1812 | SPAGAIN; |
a0d0e21e LW |
1813 | PUSHSUBST(cx); |
1814 | RETURNOP(cPMOP->op_pmreplroot); | |
1815 | } | |
cf93c79d | 1816 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1817 | do { |
1818 | if (iters++ > maxiters) | |
cea2e8a9 | 1819 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1820 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1821 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
1822 | m = s; |
1823 | s = orig; | |
cf93c79d | 1824 | orig = rx->subbeg; |
a0d0e21e LW |
1825 | s = orig + (m - s); |
1826 | strend = s + (strend - m); | |
1827 | } | |
cf93c79d | 1828 | m = rx->startp[0] + orig; |
a0d0e21e | 1829 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 1830 | s = rx->endp[0] + orig; |
a0d0e21e LW |
1831 | if (clen) |
1832 | sv_catpvn(dstr, c, clen); | |
1833 | if (once) | |
1834 | break; | |
cea2e8a9 | 1835 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e | 1836 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1837 | |
4633a7c4 | 1838 | (void)SvOOK_off(TARG); |
cb0b1708 | 1839 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1840 | SvPVX(TARG) = SvPVX(dstr); |
1841 | SvCUR_set(TARG, SvCUR(dstr)); | |
1842 | SvLEN_set(TARG, SvLEN(dstr)); | |
1843 | SvPVX(dstr) = 0; | |
1844 | sv_free(dstr); | |
1845 | ||
48c036b1 | 1846 | TAINT_IF(rxtainted & 1); |
f878fbec | 1847 | SPAGAIN; |
48c036b1 GS |
1848 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1849 | ||
a0d0e21e | 1850 | (void)SvPOK_only(TARG); |
48c036b1 | 1851 | TAINT_IF(rxtainted); |
a0d0e21e | 1852 | SvSETMAGIC(TARG); |
9212bbba | 1853 | SvTAINT(TARG); |
4633a7c4 | 1854 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1855 | RETURN; |
1856 | } | |
5cd24f17 | 1857 | goto ret_no; |
a0d0e21e LW |
1858 | |
1859 | nope: | |
8ec5e241 NIS |
1860 | ret_no: |
1861 | SPAGAIN; | |
3280af22 | 1862 | PUSHs(&PL_sv_no); |
4633a7c4 | 1863 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1864 | RETURN; |
1865 | } | |
1866 | ||
1867 | PP(pp_grepwhile) | |
1868 | { | |
4e35701f | 1869 | djSP; |
a0d0e21e LW |
1870 | |
1871 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1872 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1873 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
1874 | LEAVE; /* exit inner scope */ |
1875 | ||
1876 | /* All done yet? */ | |
3280af22 | 1877 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 1878 | I32 items; |
54310121 | 1879 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1880 | |
1881 | LEAVE; /* exit outer scope */ | |
1882 | (void)POPMARK; /* pop src */ | |
3280af22 | 1883 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1884 | (void)POPMARK; /* pop dst */ |
3280af22 | 1885 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1886 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1887 | dTARGET; |
1888 | XPUSHi(items); | |
a0d0e21e | 1889 | } |
54310121 | 1890 | else if (gimme == G_ARRAY) |
1891 | SP += items; | |
a0d0e21e LW |
1892 | RETURN; |
1893 | } | |
1894 | else { | |
1895 | SV *src; | |
1896 | ||
1897 | ENTER; /* enter inner scope */ | |
3280af22 | 1898 | SAVESPTR(PL_curpm); |
a0d0e21e | 1899 | |
3280af22 | 1900 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1901 | SvTEMP_off(src); |
54b9620d | 1902 | DEFSV = src; |
a0d0e21e LW |
1903 | |
1904 | RETURNOP(cLOGOP->op_other); | |
1905 | } | |
1906 | } | |
1907 | ||
1908 | PP(pp_leavesub) | |
1909 | { | |
4e35701f | 1910 | djSP; |
a0d0e21e LW |
1911 | SV **mark; |
1912 | SV **newsp; | |
1913 | PMOP *newpm; | |
1914 | I32 gimme; | |
c09156bb | 1915 | register PERL_CONTEXT *cx; |
f86702cc | 1916 | struct block_sub cxsub; |
a0d0e21e LW |
1917 | |
1918 | POPBLOCK(cx,newpm); | |
f86702cc | 1919 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1920 | ||
a1f49e72 | 1921 | TAINT_NOT; |
a0d0e21e LW |
1922 | if (gimme == G_SCALAR) { |
1923 | MARK = newsp + 1; | |
a29cdaf0 IZ |
1924 | if (MARK <= SP) { |
1925 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { | |
1926 | if (SvTEMP(TOPs)) { | |
1927 | *MARK = SvREFCNT_inc(TOPs); | |
1928 | FREETMPS; | |
1929 | sv_2mortal(*MARK); | |
1930 | } else { | |
1931 | FREETMPS; | |
1932 | *MARK = sv_mortalcopy(TOPs); | |
1933 | } | |
1934 | } else | |
1935 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
1936 | } else { | |
f86702cc | 1937 | MEXTEND(MARK, 0); |
3280af22 | 1938 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
1939 | } |
1940 | SP = MARK; | |
1941 | } | |
54310121 | 1942 | else if (gimme == G_ARRAY) { |
f86702cc | 1943 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1944 | if (!SvTEMP(*MARK)) { |
f86702cc | 1945 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1946 | TAINT_NOT; /* Each item is independent */ |
1947 | } | |
f86702cc | 1948 | } |
a0d0e21e | 1949 | } |
f86702cc | 1950 | PUTBACK; |
1951 | ||
1952 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
3280af22 | 1953 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
1954 | |
1955 | LEAVE; | |
a0d0e21e LW |
1956 | return pop_return(); |
1957 | } | |
1958 | ||
76e3520e | 1959 | STATIC CV * |
cea2e8a9 | 1960 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 MB |
1961 | { |
1962 | dTHR; | |
3280af22 | 1963 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
1964 | |
1965 | if (!PERLDB_SUB_NN) { | |
1966 | GV *gv = CvGV(cv); | |
1967 | ||
1968 | save_item(dbsv); | |
1969 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1970 | || strEQ(GvNAME(gv), "END") | |
1971 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
1972 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
1973 | && (gv = (GV*)*svp) ))) { | |
1974 | /* Use GV from the stack as a fallback. */ | |
1975 | /* GV is potentially non-unique, or contain different CV. */ | |
1976 | sv_setsv(dbsv, newRV((SV*)cv)); | |
1977 | } | |
1978 | else { | |
1979 | gv_efullname3(dbsv, gv, Nullch); | |
1980 | } | |
3de9ffa1 MB |
1981 | } |
1982 | else { | |
491527d0 GS |
1983 | SvUPGRADE(dbsv, SVt_PVIV); |
1984 | SvIOK_on(dbsv); | |
1985 | SAVEIV(SvIVX(dbsv)); | |
1986 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ | |
3de9ffa1 | 1987 | } |
491527d0 | 1988 | |
3de9ffa1 | 1989 | if (CvXSUB(cv)) |
3280af22 NIS |
1990 | PL_curcopdb = PL_curcop; |
1991 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
1992 | return cv; |
1993 | } | |
1994 | ||
a0d0e21e LW |
1995 | PP(pp_entersub) |
1996 | { | |
4e35701f | 1997 | djSP; dPOPss; |
a0d0e21e LW |
1998 | GV *gv; |
1999 | HV *stash; | |
2000 | register CV *cv; | |
c09156bb | 2001 | register PERL_CONTEXT *cx; |
5d94fbed | 2002 | I32 gimme; |
533c011a | 2003 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2004 | |
2005 | if (!sv) | |
cea2e8a9 | 2006 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2007 | switch (SvTYPE(sv)) { |
2008 | default: | |
2009 | if (!SvROK(sv)) { | |
748a9306 | 2010 | char *sym; |
2d8e6c8d | 2011 | STRLEN n_a; |
748a9306 | 2012 | |
3280af22 | 2013 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2014 | if (hasargs) |
3280af22 | 2015 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2016 | RETURN; |
fb73857a | 2017 | } |
15ff848f CS |
2018 | if (SvGMAGICAL(sv)) { |
2019 | mg_get(sv); | |
2020 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2021 | } | |
2022 | else | |
2d8e6c8d | 2023 | sym = SvPV(sv, n_a); |
15ff848f | 2024 | if (!sym) |
cea2e8a9 | 2025 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a | 2026 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 | 2027 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2028 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2029 | break; |
2030 | } | |
f5284f61 IZ |
2031 | { |
2032 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2033 | tryAMAGICunDEREF(to_cv); | |
2034 | } | |
a0d0e21e LW |
2035 | cv = (CV*)SvRV(sv); |
2036 | if (SvTYPE(cv) == SVt_PVCV) | |
2037 | break; | |
2038 | /* FALL THROUGH */ | |
2039 | case SVt_PVHV: | |
2040 | case SVt_PVAV: | |
cea2e8a9 | 2041 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2042 | case SVt_PVCV: |
2043 | cv = (CV*)sv; | |
2044 | break; | |
2045 | case SVt_PVGV: | |
8ebc5c01 | 2046 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2047 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2048 | if (!cv) { | |
2049 | ENTER; | |
2050 | SAVETMPS; | |
2051 | goto try_autoload; | |
2052 | } | |
2053 | break; | |
a0d0e21e LW |
2054 | } |
2055 | ||
2056 | ENTER; | |
2057 | SAVETMPS; | |
2058 | ||
2059 | retry: | |
a0d0e21e | 2060 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2061 | GV* autogv; |
22239a37 | 2062 | SV* sub_name; |
44a8e56a | 2063 | |
2064 | /* anonymous or undef'd function leaves us no recourse */ | |
2065 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
cea2e8a9 | 2066 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe | 2067 | |
44a8e56a | 2068 | /* autoloaded stub? */ |
2069 | if (cv != GvCV(gv)) { | |
2070 | cv = GvCV(gv); | |
a0d0e21e | 2071 | } |
44a8e56a | 2072 | /* should call AUTOLOAD now? */ |
67caa1fe | 2073 | else { |
f6ec51f7 GS |
2074 | try_autoload: |
2075 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2076 | FALSE))) | |
2077 | { | |
2078 | cv = GvCV(autogv); | |
2079 | } | |
2080 | /* sorry */ | |
2081 | else { | |
2082 | sub_name = sv_newmortal(); | |
2083 | gv_efullname3(sub_name, gv, Nullch); | |
cea2e8a9 | 2084 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 | 2085 | } |
67caa1fe GS |
2086 | } |
2087 | if (!cv) | |
cea2e8a9 | 2088 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe | 2089 | goto retry; |
a0d0e21e LW |
2090 | } |
2091 | ||
54310121 | 2092 | gimme = GIMME_V; |
67caa1fe | 2093 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2094 | cv = get_db_sub(&sv, cv); |
67caa1fe | 2095 | if (!cv) |
cea2e8a9 | 2096 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe | 2097 | } |
a0d0e21e | 2098 | |
11343788 | 2099 | #ifdef USE_THREADS |
3de9ffa1 MB |
2100 | /* |
2101 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2102 | * If so, we gain a lock on the CV, the first argument or the |
2103 | * stash (for static methods), as appropriate. This has to be | |
2104 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2105 | * reschedule by returning a new op. | |
3de9ffa1 | 2106 | */ |
11343788 | 2107 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2108 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2109 | MAGIC *mg; | |
2110 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2111 | if (SP > PL_stack_base + TOPMARK) |
2112 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2113 | else { |
13e08037 GS |
2114 | AV *av = (AV*)PL_curpad[0]; |
2115 | if (hasargs || !av || AvFILLp(av) < 0 | |
2116 | || !(sv = AvARRAY(av)[0])) | |
2117 | { | |
2118 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
cea2e8a9 | 2119 | Perl_croak(aTHX_ "no argument for locked method call"); |
13e08037 | 2120 | } |
77a005ab MB |
2121 | } |
2122 | if (SvROK(sv)) | |
2123 | sv = SvRV(sv); | |
458fb581 MB |
2124 | else { |
2125 | STRLEN len; | |
2126 | char *stashname = SvPV(sv, len); | |
2127 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2128 | } | |
77a005ab MB |
2129 | } |
2130 | else { | |
2131 | sv = (SV*)cv; | |
2132 | } | |
2133 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2134 | mg = condpair_magic(sv); | |
2135 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2136 | if (MgOWNER(mg) == thr) | |
2137 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2138 | else { | |
2139 | while (MgOWNER(mg)) | |
2140 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2141 | MgOWNER(mg) = thr; | |
8b73bbec | 2142 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 | 2143 | thr, sv);) |
77a005ab | 2144 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
cea2e8a9 | 2145 | save_destructor(Perl_unlock_condpair, sv); |
11343788 | 2146 | } |
77a005ab | 2147 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2148 | } |
3de9ffa1 MB |
2149 | /* |
2150 | * Now we have permission to enter the sub, we must distinguish | |
2151 | * four cases. (0) It's an XSUB (in which case we don't care | |
2152 | * about ownership); (1) it's ours already (and we're recursing); | |
2153 | * (2) it's free (but we may already be using a cached clone); | |
2154 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2155 | * Case (2) means we look for a clone--if we have one, use it | |
2156 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2157 | * clone (for non-XSUBs) and have to create one if we don't | |
2158 | * already have one. | |
2159 | * Why look for a clone in case (2) when we could just grab | |
2160 | * ownership of cv straight away? Well, we could be recursing, | |
2161 | * i.e. we originally tried to enter cv while another thread | |
2162 | * owned it (hence we used a clone) but it has been freed up | |
2163 | * and we're now recursing into it. It may or may not be "better" | |
2164 | * to use the clone but at least CvDEPTH can be trusted. | |
2165 | */ | |
2166 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2167 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2168 | else { |
3de9ffa1 MB |
2169 | /* Case (2) or (3) */ |
2170 | SV **svp; | |
2171 | ||
11343788 | 2172 | /* |
3de9ffa1 MB |
2173 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2174 | * do the hv_fetch? We might find someone has pinched it | |
2175 | * when we look again, in which case we would be in case | |
2176 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2177 | * that we released the mutex more quickly make up for this? | |
2178 | */ | |
b099ddc0 | 2179 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2180 | { |
3de9ffa1 | 2181 | /* We already have a clone to use */ |
11343788 | 2182 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2183 | cv = *(CV**)svp; |
8b73bbec | 2184 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2185 | "entersub: %p already has clone %p:%s\n", |
2186 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2187 | CvOWNER(cv) = thr; |
2188 | SvREFCNT_inc(cv); | |
2189 | if (CvDEPTH(cv) == 0) | |
cea2e8a9 | 2190 | SAVEDESTRUCTOR(S_unset_cvowner, (void*) cv); |
3de9ffa1 | 2191 | } |
11343788 | 2192 | else { |
3de9ffa1 MB |
2193 | /* (2) => grab ownership of cv. (3) => make clone */ |
2194 | if (!CvOWNER(cv)) { | |
2195 | CvOWNER(cv) = thr; | |
2196 | SvREFCNT_inc(cv); | |
11343788 | 2197 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec | 2198 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2199 | "entersub: %p grabbing %p:%s in stash %s\n", |
2200 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
2201 | HvNAME(CvSTASH(cv)) : "(none)")); |
2202 | } else { | |
2203 | /* Make a new clone. */ | |
2204 | CV *clonecv; | |
2205 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2206 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
8b73bbec | 2207 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2208 | "entersub: %p cloning %p:%s\n", |
2209 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2210 | /* |
2211 | * We're creating a new clone so there's no race | |
2212 | * between the original MUTEX_UNLOCK and the | |
2213 | * SvREFCNT_inc since no one will be trying to undef | |
2214 | * it out from underneath us. At least, I don't think | |
2215 | * there's a race... | |
2216 | */ | |
2217 | clonecv = cv_clone(cv); | |
2218 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2219 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2220 | CvOWNER(clonecv) = thr; |
2221 | cv = clonecv; | |
11343788 | 2222 | SvREFCNT_inc(cv); |
11343788 | 2223 | } |
8b73bbec | 2224 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 MB |
2225 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2226 | CvDEPTH(cv));); | |
cea2e8a9 | 2227 | SAVEDESTRUCTOR(S_unset_cvowner, (void*) cv); |
11343788 | 2228 | } |
3de9ffa1 | 2229 | } |
11343788 MB |
2230 | #endif /* USE_THREADS */ |
2231 | ||
a0d0e21e | 2232 | if (CvXSUB(cv)) { |
67caa1fe | 2233 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2234 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2235 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2236 | dMARK; |
2237 | register I32 items = SP - MARK; | |
67955e0c | 2238 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2239 | while (SP > mark) { |
2240 | SP[1] = SP[0]; | |
2241 | SP--; | |
a0d0e21e | 2242 | } |
3280af22 | 2243 | PL_stack_sp = mark + 1; |
20ce7b12 | 2244 | fp3 = (I32(*)(int,int,int)))CvXSUB(cv; |
ecfc5424 | 2245 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2246 | MARK - PL_stack_base + 1, |
ecfc5424 | 2247 | items); |
3280af22 | 2248 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2249 | } |
67caa1fe GS |
2250 | else |
2251 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2252 | { | |
748a9306 LW |
2253 | I32 markix = TOPMARK; |
2254 | ||
a0d0e21e | 2255 | PUTBACK; |
67955e0c | 2256 | |
2257 | if (!hasargs) { | |
2258 | /* Need to copy @_ to stack. Alternative may be to | |
2259 | * switch stack to @_, and copy return values | |
2260 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2261 | AV* av; |
2262 | I32 items; | |
2263 | #ifdef USE_THREADS | |
533c011a | 2264 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2265 | #else |
3280af22 | 2266 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2267 | #endif /* USE_THREADS */ |
93965878 | 2268 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2269 | |
2270 | if (items) { | |
2271 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2272 | EXTEND(SP, items); |
2273 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2274 | SP += items; | |
67955e0c | 2275 | PUTBACK ; |
2276 | } | |
2277 | } | |
67caa1fe GS |
2278 | /* We assume first XSUB in &DB::sub is the called one. */ |
2279 | if (PL_curcopdb) { | |
3280af22 NIS |
2280 | SAVESPTR(PL_curcop); |
2281 | PL_curcop = PL_curcopdb; | |
2282 | PL_curcopdb = NULL; | |
67955e0c | 2283 | } |
2284 | /* Do we need to open block here? XXXX */ | |
0cb96387 | 2285 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 LW |
2286 | |
2287 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2288 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2289 | if (markix > PL_stack_sp - PL_stack_base) | |
2290 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2291 | else |
3280af22 NIS |
2292 | *(PL_stack_base + markix) = *PL_stack_sp; |
2293 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2294 | } |
a0d0e21e LW |
2295 | } |
2296 | LEAVE; | |
2297 | return NORMAL; | |
2298 | } | |
2299 | else { | |
2300 | dMARK; | |
2301 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2302 | AV* padlist = CvPADLIST(cv); |
2303 | SV** svp = AvARRAY(padlist); | |
533c011a | 2304 | push_return(PL_op->op_next); |
a0d0e21e LW |
2305 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2306 | PUSHSUB(cx); | |
2307 | CvDEPTH(cv)++; | |
6b35e009 GS |
2308 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2309 | * that eval'' ops within this sub know the correct lexical space. | |
2310 | * Owing the speed considerations, we choose to search for the cv | |
2311 | * in doeval() instead. | |
2312 | */ | |
a0d0e21e LW |
2313 | if (CvDEPTH(cv) < 2) |
2314 | (void)SvREFCNT_inc(cv); | |
2315 | else { /* save temporaries on recursion? */ | |
93965878 | 2316 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2317 | AV *av; |
2318 | AV *newpad = newAV(); | |
4aa0a1f7 | 2319 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2320 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e | 2321 | svp = AvARRAY(svp[0]); |
748a9306 | 2322 | for ( ;ix > 0; ix--) { |
3280af22 | 2323 | if (svp[ix] != &PL_sv_undef) { |
748a9306 | 2324 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2325 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2326 | || *name == '&') /* anonymous code? */ | |
2327 | { | |
2328 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2329 | } |
2330 | else { /* our own lexical */ | |
2331 | if (*name == '@') | |
2332 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2333 | else if (*name == '%') | |
2334 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2335 | else | |
2336 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2337 | SvPADMY_on(sv); | |
2338 | } | |
a0d0e21e LW |
2339 | } |
2340 | else { | |
748a9306 | 2341 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2342 | SvPADTMP_on(sv); |
2343 | } | |
2344 | } | |
2345 | av = newAV(); /* will be @_ */ | |
2346 | av_extend(av, 0); | |
2347 | av_store(newpad, 0, (SV*)av); | |
2348 | AvFLAGS(av) = AVf_REIFY; | |
2349 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2350 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2351 | svp = AvARRAY(padlist); |
2352 | } | |
2353 | } | |
6d4ff0d2 MB |
2354 | #ifdef USE_THREADS |
2355 | if (!hasargs) { | |
533c011a | 2356 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2357 | |
93965878 | 2358 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2359 | if (items) { |
2360 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2361 | EXTEND(SP, items); |
2362 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2363 | SP += items; | |
6d4ff0d2 MB |
2364 | PUTBACK ; |
2365 | } | |
2366 | } | |
2367 | #endif /* USE_THREADS */ | |
3280af22 NIS |
2368 | SAVESPTR(PL_curpad); |
2369 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
6d4ff0d2 MB |
2370 | #ifndef USE_THREADS |
2371 | if (hasargs) | |
2372 | #endif /* USE_THREADS */ | |
2373 | { | |
2374 | AV* av; | |
a0d0e21e LW |
2375 | SV** ary; |
2376 | ||
77a005ab | 2377 | #if 0 |
8b73bbec | 2378 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2379 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2380 | #endif |
3280af22 | 2381 | av = (AV*)PL_curpad[0]; |
a0d0e21e LW |
2382 | if (AvREAL(av)) { |
2383 | av_clear(av); | |
2384 | AvREAL_off(av); | |
2385 | } | |
6d4ff0d2 | 2386 | #ifndef USE_THREADS |
3280af22 NIS |
2387 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2388 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2389 | #endif /* USE_THREADS */ |
2390 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2391 | ++MARK; |
2392 | ||
2393 | if (items > AvMAX(av) + 1) { | |
2394 | ary = AvALLOC(av); | |
2395 | if (AvARRAY(av) != ary) { | |
2396 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2397 | SvPVX(av) = (char*)ary; | |
2398 | } | |
2399 | if (items > AvMAX(av) + 1) { | |
2400 | AvMAX(av) = items - 1; | |
2401 | Renew(ary,items,SV*); | |
2402 | AvALLOC(av) = ary; | |
2403 | SvPVX(av) = (char*)ary; | |
2404 | } | |
2405 | } | |
2406 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2407 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2408 | |
2409 | while (items--) { | |
2410 | if (*MARK) | |
2411 | SvTEMP_off(*MARK); | |
2412 | MARK++; | |
2413 | } | |
2414 | } | |
4a925ff6 GS |
2415 | /* warning must come *after* we fully set up the context |
2416 | * stuff so that __WARN__ handlers can safely dounwind() | |
2417 | * if they want to | |
2418 | */ | |
2419 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2420 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2421 | sub_crush_depth(cv); | |
77a005ab | 2422 | #if 0 |
8b73bbec | 2423 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2424 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2425 | #endif |
a0d0e21e LW |
2426 | RETURNOP(CvSTART(cv)); |
2427 | } | |
2428 | } | |
2429 | ||
44a8e56a | 2430 | void |
864dbfa3 | 2431 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a | 2432 | { |
2433 | if (CvANON(cv)) | |
cea2e8a9 | 2434 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2435 | else { |
2436 | SV* tmpstr = sv_newmortal(); | |
2437 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
cea2e8a9 | 2438 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 | 2439 | SvPVX(tmpstr)); |
44a8e56a | 2440 | } |
2441 | } | |
2442 | ||
a0d0e21e LW |
2443 | PP(pp_aelem) |
2444 | { | |
4e35701f | 2445 | djSP; |
a0d0e21e | 2446 | SV** svp; |
748a9306 | 2447 | I32 elem = POPi; |
68dc0745 | 2448 | AV* av = (AV*)POPs; |
533c011a NIS |
2449 | U32 lval = PL_op->op_flags & OPf_MOD; |
2450 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2451 | SV *sv; |
a0d0e21e | 2452 | |
748a9306 | 2453 | if (elem > 0) |
3280af22 | 2454 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2455 | if (SvTYPE(av) != SVt_PVAV) |
2456 | RETPUSHUNDEF; | |
68dc0745 | 2457 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2458 | if (lval) { |
3280af22 | 2459 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2460 | SV* lv; |
2461 | if (!defer) | |
cea2e8a9 | 2462 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 | 2463 | lv = sv_newmortal(); |
2464 | sv_upgrade(lv, SVt_PVLV); | |
2465 | LvTYPE(lv) = 'y'; | |
2466 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2467 | LvTARG(lv) = SvREFCNT_inc(av); | |
2468 | LvTARGOFF(lv) = elem; | |
2469 | LvTARGLEN(lv) = 1; | |
2470 | PUSHs(lv); | |
2471 | RETURN; | |
2472 | } | |
533c011a | 2473 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2474 | save_aelem(av, elem, svp); |
533c011a NIS |
2475 | else if (PL_op->op_private & OPpDEREF) |
2476 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2477 | } |
3280af22 | 2478 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2479 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2480 | sv = sv_mortalcopy(sv); | |
2481 | PUSHs(sv); | |
a0d0e21e LW |
2482 | RETURN; |
2483 | } | |
2484 | ||
02a9e968 | 2485 | void |
864dbfa3 | 2486 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2487 | { |
2488 | if (SvGMAGICAL(sv)) | |
2489 | mg_get(sv); | |
2490 | if (!SvOK(sv)) { | |
2491 | if (SvREADONLY(sv)) | |
cea2e8a9 | 2492 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc | 2493 | if (SvTYPE(sv) < SVt_RV) |
2494 | sv_upgrade(sv, SVt_RV); | |
2495 | else if (SvTYPE(sv) >= SVt_PV) { | |
2496 | (void)SvOOK_off(sv); | |
2497 | Safefree(SvPVX(sv)); | |
2498 | SvLEN(sv) = SvCUR(sv) = 0; | |
2499 | } | |
68dc0745 | 2500 | switch (to_what) { |
5f05dabc | 2501 | case OPpDEREF_SV: |
8c52afec | 2502 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2503 | break; |
2504 | case OPpDEREF_AV: | |
2505 | SvRV(sv) = (SV*)newAV(); | |
2506 | break; | |
2507 | case OPpDEREF_HV: | |
2508 | SvRV(sv) = (SV*)newHV(); | |
2509 | break; | |
2510 | } | |
02a9e968 CS |
2511 | SvROK_on(sv); |
2512 | SvSETMAGIC(sv); | |
2513 | } | |
2514 | } | |
2515 | ||
a0d0e21e LW |
2516 | PP(pp_method) |
2517 | { | |
4e35701f | 2518 | djSP; |
a0d0e21e LW |
2519 | SV* sv; |
2520 | SV* ob; | |
2521 | GV* gv; | |
56304f61 CS |
2522 | HV* stash; |
2523 | char* name; | |
ac91690f CS |
2524 | char* packname; |
2525 | STRLEN packlen; | |
a0d0e21e | 2526 | |
fb73857a | 2527 | if (SvROK(TOPs)) { |
2528 | sv = SvRV(TOPs); | |
2529 | if (SvTYPE(sv) == SVt_PVCV) { | |
2530 | SETs(sv); | |
2531 | RETURN; | |
2532 | } | |
2533 | } | |
2534 | ||
2d8e6c8d | 2535 | name = SvPV(TOPs, packlen); |
3280af22 | 2536 | sv = *(PL_stack_base + TOPMARK + 1); |
a0d0e21e | 2537 | |
16d20bd9 AD |
2538 | if (SvGMAGICAL(sv)) |
2539 | mg_get(sv); | |
a0d0e21e | 2540 | if (SvROK(sv)) |
16d20bd9 | 2541 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2542 | else { |
2543 | GV* iogv; | |
a0d0e21e | 2544 | |
56304f61 | 2545 | packname = Nullch; |
a0d0e21e | 2546 | if (!SvOK(sv) || |
56304f61 | 2547 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2548 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2549 | !(ob=(SV*)GvIO(iogv))) | |
2550 | { | |
834a4ddd LW |
2551 | if (!packname || |
2552 | ((*(U8*)packname >= 0xc0 && IN_UTF8) | |
b86a2fa7 | 2553 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2554 | : !isIDFIRST(*packname) |
2555 | )) | |
2556 | { | |
cea2e8a9 | 2557 | DIE(aTHX_ "Can't call method \"%s\" %s", name, |
72b5445b GS |
2558 | SvOK(sv)? "without a package or object reference" |
2559 | : "on an undefined value"); | |
834a4ddd | 2560 | } |
56304f61 | 2561 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2562 | goto fetch; |
a0d0e21e | 2563 | } |
3280af22 | 2564 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2565 | } |
2566 | ||
ac91690f | 2567 | if (!ob || !SvOBJECT(ob)) |
cea2e8a9 | 2568 | DIE(aTHX_ "Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2569 | |
56304f61 | 2570 | stash = SvSTASH(ob); |
a0d0e21e | 2571 | |
ac91690f | 2572 | fetch: |
ac91690f | 2573 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2574 | if (!gv) { |
2575 | char* leaf = name; | |
2576 | char* sep = Nullch; | |
2577 | char* p; | |
2578 | ||
2579 | for (p = name; *p; p++) { | |
2580 | if (*p == '\'') | |
2581 | sep = p, leaf = p + 1; | |
2582 | else if (*p == ':' && *(p + 1) == ':') | |
2583 | sep = p, leaf = p + 2; | |
2584 | } | |
2585 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
3280af22 | 2586 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 CS |
2587 | packlen = strlen(packname); |
2588 | } | |
2589 | else { | |
2590 | packname = name; | |
2591 | packlen = sep - name; | |
2592 | } | |
cea2e8a9 | 2593 | DIE(aTHX_ "Can't locate object method \"%s\" via package \"%.*s\"", |
56304f61 CS |
2594 | leaf, (int)packlen, packname); |
2595 | } | |
8ebc5c01 | 2596 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2597 | RETURN; |
2598 | } | |
22239a37 | 2599 |