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 | |
a0ed51b3 LW |
31 | #define HOP(pos,off) (IN_UTF8 ? utf8_hop(pos, off) : (pos + off)) |
32 | ||
a0d0e21e LW |
33 | /* Hot code. */ |
34 | ||
11343788 MB |
35 | #ifdef USE_THREADS |
36 | static void | |
8ac85365 | 37 | unset_cvowner(void *cvarg) |
11343788 MB |
38 | { |
39 | register CV* cv = (CV *) cvarg; | |
40 | #ifdef DEBUGGING | |
41 | dTHR; | |
42 | #endif /* DEBUGGING */ | |
43 | ||
8b73bbec | 44 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), "%p unsetting CvOWNER of %p:%s\n", |
1fd28e87 | 45 | thr, cv, SvPEEK((SV*)cv)))); |
11343788 | 46 | MUTEX_LOCK(CvMUTEXP(cv)); |
8b73bbec | 47 | DEBUG_S(if (CvDEPTH(cv) != 0) |
77a005ab MB |
48 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
49 | CvDEPTH(cv));); | |
11343788 MB |
50 | assert(thr == CvOWNER(cv)); |
51 | CvOWNER(cv) = 0; | |
11343788 MB |
52 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
53 | SvREFCNT_dec(cv); | |
54 | } | |
11343788 MB |
55 | #endif /* USE_THREADS */ |
56 | ||
a0d0e21e LW |
57 | PP(pp_const) |
58 | { | |
4e35701f | 59 | djSP; |
a0d0e21e LW |
60 | XPUSHs(cSVOP->op_sv); |
61 | RETURN; | |
62 | } | |
63 | ||
64 | PP(pp_nextstate) | |
65 | { | |
533c011a | 66 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 67 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 68 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
69 | FREETMPS; |
70 | return NORMAL; | |
71 | } | |
72 | ||
73 | PP(pp_gvsv) | |
74 | { | |
4e35701f | 75 | djSP; |
924508f0 | 76 | EXTEND(SP,1); |
533c011a | 77 | if (PL_op->op_private & OPpLVAL_INTRO) |
a0d0e21e LW |
78 | PUSHs(save_scalar(cGVOP->op_gv)); |
79 | else | |
80 | PUSHs(GvSV(cGVOP->op_gv)); | |
81 | RETURN; | |
82 | } | |
83 | ||
84 | PP(pp_null) | |
85 | { | |
86 | return NORMAL; | |
87 | } | |
88 | ||
89 | PP(pp_pushmark) | |
90 | { | |
3280af22 | 91 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
92 | return NORMAL; |
93 | } | |
94 | ||
95 | PP(pp_stringify) | |
96 | { | |
4e35701f | 97 | djSP; dTARGET; |
a0d0e21e LW |
98 | STRLEN len; |
99 | char *s; | |
100 | s = SvPV(TOPs,len); | |
101 | sv_setpvn(TARG,s,len); | |
102 | SETTARG; | |
103 | RETURN; | |
104 | } | |
105 | ||
106 | PP(pp_gv) | |
107 | { | |
4e35701f | 108 | djSP; |
a0d0e21e LW |
109 | XPUSHs((SV*)cGVOP->op_gv); |
110 | RETURN; | |
111 | } | |
112 | ||
113 | PP(pp_and) | |
114 | { | |
4e35701f | 115 | djSP; |
a0d0e21e LW |
116 | if (!SvTRUE(TOPs)) |
117 | RETURN; | |
118 | else { | |
119 | --SP; | |
120 | RETURNOP(cLOGOP->op_other); | |
121 | } | |
122 | } | |
123 | ||
124 | PP(pp_sassign) | |
125 | { | |
4e35701f | 126 | djSP; dPOPTOPssrl; |
748a9306 LW |
127 | MAGIC *mg; |
128 | ||
533c011a | 129 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
130 | SV *temp; |
131 | temp = left; left = right; right = temp; | |
132 | } | |
3280af22 | 133 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 134 | TAINT_NOT; |
54310121 | 135 | SvSetMagicSV(right, left); |
a0d0e21e LW |
136 | SETs(right); |
137 | RETURN; | |
138 | } | |
139 | ||
140 | PP(pp_cond_expr) | |
141 | { | |
4e35701f | 142 | djSP; |
a0d0e21e LW |
143 | if (SvTRUEx(POPs)) |
144 | RETURNOP(cCONDOP->op_true); | |
145 | else | |
146 | RETURNOP(cCONDOP->op_false); | |
147 | } | |
148 | ||
149 | PP(pp_unstack) | |
150 | { | |
151 | I32 oldsave; | |
152 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 153 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 154 | FREETMPS; |
3280af22 | 155 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
156 | LEAVE_SCOPE(oldsave); |
157 | return NORMAL; | |
158 | } | |
159 | ||
a0d0e21e LW |
160 | PP(pp_concat) |
161 | { | |
4e35701f | 162 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
163 | { |
164 | dPOPTOPssrl; | |
a0d0e21e LW |
165 | STRLEN len; |
166 | char *s; | |
167 | if (TARG != left) { | |
168 | s = SvPV(left,len); | |
169 | sv_setpvn(TARG,s,len); | |
170 | } | |
c07a80fd | 171 | else if (SvGMAGICAL(TARG)) |
172 | mg_get(TARG); | |
7a4c00b4 | 173 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) { |
748a9306 | 174 | sv_setpv(TARG, ""); /* Suppress warning. */ |
7a4c00b4 | 175 | s = SvPV_force(TARG, len); |
4633a7c4 | 176 | } |
a0d0e21e | 177 | s = SvPV(right,len); |
68dc0745 | 178 | if (SvOK(TARG)) |
179 | sv_catpvn(TARG,s,len); | |
180 | else | |
181 | sv_setpvn(TARG,s,len); /* suppress warning */ | |
a0d0e21e LW |
182 | SETTARG; |
183 | RETURN; | |
748a9306 | 184 | } |
a0d0e21e LW |
185 | } |
186 | ||
187 | PP(pp_padsv) | |
188 | { | |
4e35701f | 189 | djSP; dTARGET; |
a0d0e21e | 190 | XPUSHs(TARG); |
533c011a NIS |
191 | if (PL_op->op_flags & OPf_MOD) { |
192 | if (PL_op->op_private & OPpLVAL_INTRO) | |
193 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
194 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 195 | PUTBACK; |
533c011a | 196 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
197 | SPAGAIN; |
198 | } | |
4633a7c4 | 199 | } |
a0d0e21e LW |
200 | RETURN; |
201 | } | |
202 | ||
203 | PP(pp_readline) | |
204 | { | |
f5284f61 | 205 | tryAMAGICunTARGET(iter, 0); |
3280af22 | 206 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 IZ |
207 | if (PL_op->op_flags & OPf_SPECIAL) { /* Are called as <$var> */ |
208 | if (SvROK(PL_last_in_gv)) { | |
209 | if (SvTYPE(SvRV(PL_last_in_gv)) != SVt_PVGV) | |
210 | goto hard_way; | |
211 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); | |
212 | } else if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { | |
213 | hard_way: { | |
214 | dSP; | |
215 | XPUSHs((SV*)PL_last_in_gv); | |
216 | PUTBACK; | |
217 | pp_rv2gv(ARGS); | |
218 | PL_last_in_gv = (GV*)(*PL_stack_sp--); | |
219 | } | |
220 | } | |
221 | } | |
a0d0e21e LW |
222 | return do_readline(); |
223 | } | |
224 | ||
225 | PP(pp_eq) | |
226 | { | |
4e35701f | 227 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
228 | { |
229 | dPOPnv; | |
54310121 | 230 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
231 | RETURN; |
232 | } | |
233 | } | |
234 | ||
235 | PP(pp_preinc) | |
236 | { | |
4e35701f | 237 | djSP; |
68dc0745 | 238 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
22c35a8c | 239 | croak(PL_no_modify); |
55497cff | 240 | if (SvIOK(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
241 | SvIVX(TOPs) != IV_MAX) | |
242 | { | |
748a9306 | 243 | ++SvIVX(TOPs); |
55497cff | 244 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
245 | } |
246 | else | |
247 | sv_inc(TOPs); | |
a0d0e21e LW |
248 | SvSETMAGIC(TOPs); |
249 | return NORMAL; | |
250 | } | |
251 | ||
252 | PP(pp_or) | |
253 | { | |
4e35701f | 254 | djSP; |
a0d0e21e LW |
255 | if (SvTRUE(TOPs)) |
256 | RETURN; | |
257 | else { | |
258 | --SP; | |
259 | RETURNOP(cLOGOP->op_other); | |
260 | } | |
261 | } | |
262 | ||
263 | PP(pp_add) | |
264 | { | |
4e35701f | 265 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 266 | { |
7a4c00b4 | 267 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
268 | SETn( left + right ); |
269 | RETURN; | |
270 | } | |
271 | } | |
272 | ||
273 | PP(pp_aelemfast) | |
274 | { | |
4e35701f | 275 | djSP; |
a0d0e21e | 276 | AV *av = GvAV((GV*)cSVOP->op_sv); |
533c011a NIS |
277 | U32 lval = PL_op->op_flags & OPf_MOD; |
278 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 279 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 280 | EXTEND(SP, 1); |
be6c24e0 GS |
281 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
282 | sv = sv_mortalcopy(sv); | |
283 | PUSHs(sv); | |
a0d0e21e LW |
284 | RETURN; |
285 | } | |
286 | ||
287 | PP(pp_join) | |
288 | { | |
4e35701f | 289 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
290 | MARK++; |
291 | do_join(TARG, *MARK, MARK, SP); | |
292 | SP = MARK; | |
293 | SETs(TARG); | |
294 | RETURN; | |
295 | } | |
296 | ||
297 | PP(pp_pushre) | |
298 | { | |
4e35701f | 299 | djSP; |
44a8e56a | 300 | #ifdef DEBUGGING |
301 | /* | |
302 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
303 | * will be enough to hold an OP*. | |
304 | */ | |
305 | SV* sv = sv_newmortal(); | |
306 | sv_upgrade(sv, SVt_PVLV); | |
307 | LvTYPE(sv) = '/'; | |
533c011a | 308 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a | 309 | XPUSHs(sv); |
310 | #else | |
6b88bc9c | 311 | XPUSHs((SV*)PL_op); |
44a8e56a | 312 | #endif |
a0d0e21e LW |
313 | RETURN; |
314 | } | |
315 | ||
316 | /* Oversized hot code. */ | |
317 | ||
318 | PP(pp_print) | |
319 | { | |
4e35701f | 320 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
321 | GV *gv; |
322 | IO *io; | |
760ac839 | 323 | register PerlIO *fp; |
236988e4 | 324 | MAGIC *mg; |
2d8e6c8d | 325 | STRLEN n_a; |
a0d0e21e | 326 | |
533c011a | 327 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
328 | gv = (GV*)*++MARK; |
329 | else | |
3280af22 | 330 | gv = PL_defoutgv; |
33c27489 | 331 | if (mg = SvTIED_mg((SV*)gv, 'q')) { |
68dc0745 | 332 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
333 | /* If using default handle then we need to make space to |
334 | * pass object as 1st arg, so move other args up ... | |
335 | */ | |
4352c267 | 336 | MEXTEND(SP, 1); |
68dc0745 | 337 | ++MARK; |
338 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
339 | ++SP; | |
340 | } | |
341 | PUSHMARK(MARK - 1); | |
33c27489 | 342 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 343 | PUTBACK; |
236988e4 | 344 | ENTER; |
345 | perl_call_method("PRINT", G_SCALAR); | |
346 | LEAVE; | |
347 | SPAGAIN; | |
68dc0745 | 348 | MARK = ORIGMARK + 1; |
349 | *MARK = *SP; | |
350 | SP = MARK; | |
236988e4 | 351 | RETURN; |
352 | } | |
a0d0e21e | 353 | if (!(io = GvIO(gv))) { |
599cee73 | 354 | if (ckWARN(WARN_UNOPENED)) { |
748a9306 | 355 | SV* sv = sv_newmortal(); |
4f732624 | 356 | gv_fullname3(sv, gv, Nullch); |
2d8e6c8d | 357 | warner(WARN_UNOPENED, "Filehandle %s never opened", SvPV(sv,n_a)); |
748a9306 LW |
358 | } |
359 | ||
360 | SETERRNO(EBADF,RMS$_IFI); | |
a0d0e21e LW |
361 | goto just_say_no; |
362 | } | |
363 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 364 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
748a9306 | 365 | SV* sv = sv_newmortal(); |
4f732624 | 366 | gv_fullname3(sv, gv, Nullch); |
a0d0e21e | 367 | if (IoIFP(io)) |
599cee73 | 368 | warner(WARN_IO, "Filehandle %s opened only for input", |
2d8e6c8d | 369 | SvPV(sv,n_a)); |
599cee73 PM |
370 | else if (ckWARN(WARN_CLOSED)) |
371 | warner(WARN_CLOSED, "print on closed filehandle %s", | |
2d8e6c8d | 372 | SvPV(sv,n_a)); |
a0d0e21e | 373 | } |
748a9306 | 374 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
375 | goto just_say_no; |
376 | } | |
377 | else { | |
378 | MARK++; | |
3280af22 | 379 | if (PL_ofslen) { |
a0d0e21e LW |
380 | while (MARK <= SP) { |
381 | if (!do_print(*MARK, fp)) | |
382 | break; | |
383 | MARK++; | |
384 | if (MARK <= SP) { | |
3280af22 | 385 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
386 | MARK--; |
387 | break; | |
388 | } | |
389 | } | |
390 | } | |
391 | } | |
392 | else { | |
393 | while (MARK <= SP) { | |
394 | if (!do_print(*MARK, fp)) | |
395 | break; | |
396 | MARK++; | |
397 | } | |
398 | } | |
399 | if (MARK <= SP) | |
400 | goto just_say_no; | |
401 | else { | |
3280af22 NIS |
402 | if (PL_orslen) |
403 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
404 | goto just_say_no; |
405 | ||
406 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 407 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
408 | goto just_say_no; |
409 | } | |
410 | } | |
411 | SP = ORIGMARK; | |
3280af22 | 412 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
413 | RETURN; |
414 | ||
415 | just_say_no: | |
416 | SP = ORIGMARK; | |
3280af22 | 417 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
418 | RETURN; |
419 | } | |
420 | ||
421 | PP(pp_rv2av) | |
422 | { | |
f5284f61 | 423 | djSP; dTOPss; |
a0d0e21e LW |
424 | AV *av; |
425 | ||
426 | if (SvROK(sv)) { | |
427 | wasref: | |
f5284f61 IZ |
428 | tryAMAGICunDEREF(to_av); |
429 | ||
a0d0e21e LW |
430 | av = (AV*)SvRV(sv); |
431 | if (SvTYPE(av) != SVt_PVAV) | |
432 | DIE("Not an ARRAY reference"); | |
533c011a | 433 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 434 | SETs((SV*)av); |
a0d0e21e LW |
435 | RETURN; |
436 | } | |
437 | } | |
438 | else { | |
439 | if (SvTYPE(sv) == SVt_PVAV) { | |
440 | av = (AV*)sv; | |
533c011a | 441 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 442 | SETs((SV*)av); |
a0d0e21e LW |
443 | RETURN; |
444 | } | |
445 | } | |
446 | else { | |
67955e0c | 447 | GV *gv; |
448 | ||
a0d0e21e | 449 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 450 | char *sym; |
2d8e6c8d | 451 | STRLEN n_a; |
748a9306 | 452 | |
a0d0e21e LW |
453 | if (SvGMAGICAL(sv)) { |
454 | mg_get(sv); | |
455 | if (SvROK(sv)) | |
456 | goto wasref; | |
457 | } | |
458 | if (!SvOK(sv)) { | |
533c011a NIS |
459 | if (PL_op->op_flags & OPf_REF || |
460 | PL_op->op_private & HINT_STRICT_REFS) | |
22c35a8c | 461 | DIE(PL_no_usym, "an ARRAY"); |
599cee73 | 462 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c | 463 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
f5284f61 | 464 | if (GIMME == G_ARRAY) { |
c2444246 | 465 | (void)POPs; |
4633a7c4 | 466 | RETURN; |
f5284f61 IZ |
467 | } |
468 | RETSETUNDEF; | |
a0d0e21e | 469 | } |
2d8e6c8d | 470 | sym = SvPV(sv,n_a); |
533c011a | 471 | if (PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c | 472 | DIE(PL_no_symref, sym, "an ARRAY"); |
67955e0c | 473 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
474 | } else { | |
475 | gv = (GV*)sv; | |
a0d0e21e | 476 | } |
67955e0c | 477 | av = GvAVn(gv); |
533c011a | 478 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 479 | av = save_ary(gv); |
533c011a | 480 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 481 | SETs((SV*)av); |
a0d0e21e LW |
482 | RETURN; |
483 | } | |
484 | } | |
485 | } | |
486 | ||
487 | if (GIMME == G_ARRAY) { | |
488 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 489 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 NIS |
490 | EXTEND(SP, maxarg); |
491 | if (SvRMAGICAL(av)) { | |
492 | U32 i; | |
493 | for (i=0; i < maxarg; i++) { | |
494 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 495 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
496 | } |
497 | } | |
498 | else { | |
499 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
500 | } | |
a0d0e21e LW |
501 | SP += maxarg; |
502 | } | |
503 | else { | |
504 | dTARGET; | |
505 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 506 | SETi(maxarg); |
a0d0e21e LW |
507 | } |
508 | RETURN; | |
509 | } | |
510 | ||
511 | PP(pp_rv2hv) | |
512 | { | |
4e35701f | 513 | djSP; dTOPss; |
a0d0e21e LW |
514 | HV *hv; |
515 | ||
516 | if (SvROK(sv)) { | |
517 | wasref: | |
f5284f61 IZ |
518 | tryAMAGICunDEREF(to_hv); |
519 | ||
a0d0e21e | 520 | hv = (HV*)SvRV(sv); |
c750a3ec | 521 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
a0d0e21e | 522 | DIE("Not a HASH reference"); |
533c011a | 523 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
524 | SETs((SV*)hv); |
525 | RETURN; | |
526 | } | |
527 | } | |
528 | else { | |
c750a3ec | 529 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 530 | hv = (HV*)sv; |
533c011a | 531 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
532 | SETs((SV*)hv); |
533 | RETURN; | |
534 | } | |
535 | } | |
536 | else { | |
67955e0c | 537 | GV *gv; |
538 | ||
a0d0e21e | 539 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 540 | char *sym; |
2d8e6c8d | 541 | STRLEN n_a; |
748a9306 | 542 | |
a0d0e21e LW |
543 | if (SvGMAGICAL(sv)) { |
544 | mg_get(sv); | |
545 | if (SvROK(sv)) | |
546 | goto wasref; | |
547 | } | |
548 | if (!SvOK(sv)) { | |
533c011a NIS |
549 | if (PL_op->op_flags & OPf_REF || |
550 | PL_op->op_private & HINT_STRICT_REFS) | |
22c35a8c | 551 | DIE(PL_no_usym, "a HASH"); |
599cee73 | 552 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c | 553 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
4633a7c4 LW |
554 | if (GIMME == G_ARRAY) { |
555 | SP--; | |
556 | RETURN; | |
557 | } | |
a0d0e21e LW |
558 | RETSETUNDEF; |
559 | } | |
2d8e6c8d | 560 | sym = SvPV(sv,n_a); |
533c011a | 561 | if (PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c | 562 | DIE(PL_no_symref, sym, "a HASH"); |
67955e0c | 563 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
564 | } else { | |
565 | gv = (GV*)sv; | |
a0d0e21e | 566 | } |
67955e0c | 567 | hv = GvHVn(gv); |
533c011a | 568 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 569 | hv = save_hash(gv); |
533c011a | 570 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
571 | SETs((SV*)hv); |
572 | RETURN; | |
573 | } | |
574 | } | |
575 | } | |
576 | ||
577 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 578 | *PL_stack_sp = (SV*)hv; |
a0d0e21e LW |
579 | return do_kv(ARGS); |
580 | } | |
581 | else { | |
582 | dTARGET; | |
4b154ab5 GA |
583 | if (SvTYPE(hv) == SVt_PVAV) |
584 | hv = avhv_keys((AV*)hv); | |
46fc3d4c | 585 | if (HvFILL(hv)) |
586 | sv_setpvf(TARG, "%ld/%ld", | |
587 | (long)HvFILL(hv), (long)HvMAX(hv) + 1); | |
a0d0e21e LW |
588 | else |
589 | sv_setiv(TARG, 0); | |
c750a3ec | 590 | |
a0d0e21e LW |
591 | SETTARG; |
592 | RETURN; | |
593 | } | |
594 | } | |
595 | ||
596 | PP(pp_aassign) | |
597 | { | |
4e35701f | 598 | djSP; |
3280af22 NIS |
599 | SV **lastlelem = PL_stack_sp; |
600 | SV **lastrelem = PL_stack_base + POPMARK; | |
601 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
602 | SV **firstlelem = lastrelem + 1; |
603 | ||
604 | register SV **relem; | |
605 | register SV **lelem; | |
606 | ||
607 | register SV *sv; | |
608 | register AV *ary; | |
609 | ||
54310121 | 610 | I32 gimme; |
a0d0e21e LW |
611 | HV *hash; |
612 | I32 i; | |
613 | int magic; | |
614 | ||
3280af22 | 615 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
616 | |
617 | /* If there's a common identifier on both sides we have to take | |
618 | * special care that assigning the identifier on the left doesn't | |
619 | * clobber a value on the right that's used later in the list. | |
620 | */ | |
533c011a | 621 | if (PL_op->op_private & OPpASSIGN_COMMON) { |
cc5e57d2 | 622 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
a0d0e21e LW |
623 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
624 | /*SUPPRESS 560*/ | |
a1f49e72 CS |
625 | if (sv = *relem) { |
626 | TAINT_NOT; /* Each item is independent */ | |
a0d0e21e | 627 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 628 | } |
a0d0e21e LW |
629 | } |
630 | } | |
631 | ||
632 | relem = firstrelem; | |
633 | lelem = firstlelem; | |
634 | ary = Null(AV*); | |
635 | hash = Null(HV*); | |
636 | while (lelem <= lastlelem) { | |
bbce6d69 | 637 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
638 | sv = *lelem++; |
639 | switch (SvTYPE(sv)) { | |
640 | case SVt_PVAV: | |
641 | ary = (AV*)sv; | |
748a9306 | 642 | magic = SvMAGICAL(ary) != 0; |
a0d0e21e LW |
643 | |
644 | av_clear(ary); | |
7e42bd57 | 645 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
646 | i = 0; |
647 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 648 | SV **didstore; |
a0d0e21e LW |
649 | sv = NEWSV(28,0); |
650 | assert(*relem); | |
651 | sv_setsv(sv,*relem); | |
652 | *(relem++) = sv; | |
5117ca91 GS |
653 | didstore = av_store(ary,i++,sv); |
654 | if (magic) { | |
fb73857a | 655 | if (SvSMAGICAL(sv)) |
656 | mg_set(sv); | |
5117ca91 | 657 | if (!didstore) |
8127e0e3 | 658 | sv_2mortal(sv); |
5117ca91 | 659 | } |
bbce6d69 | 660 | TAINT_NOT; |
a0d0e21e LW |
661 | } |
662 | break; | |
663 | case SVt_PVHV: { | |
a0d0e21e LW |
664 | SV *tmpstr; |
665 | ||
666 | hash = (HV*)sv; | |
748a9306 | 667 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
668 | hv_clear(hash); |
669 | ||
670 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 671 | HE *didstore; |
4633a7c4 | 672 | if (*relem) |
a0d0e21e | 673 | sv = *(relem++); |
4633a7c4 | 674 | else |
3280af22 | 675 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
676 | tmpstr = NEWSV(29,0); |
677 | if (*relem) | |
678 | sv_setsv(tmpstr,*relem); /* value */ | |
679 | *(relem++) = tmpstr; | |
5117ca91 GS |
680 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
681 | if (magic) { | |
fb73857a | 682 | if (SvSMAGICAL(tmpstr)) |
683 | mg_set(tmpstr); | |
5117ca91 | 684 | if (!didstore) |
8127e0e3 | 685 | sv_2mortal(tmpstr); |
5117ca91 | 686 | } |
bbce6d69 | 687 | TAINT_NOT; |
8e07c86e | 688 | } |
6a0deba8 GS |
689 | if (relem == lastrelem) { |
690 | if (*relem) { | |
691 | HE *didstore; | |
599cee73 | 692 | if (ckWARN(WARN_UNSAFE)) { |
6a0deba8 GS |
693 | if (relem == firstrelem && |
694 | SvROK(*relem) && | |
695 | ( SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
696 | SvTYPE(SvRV(*relem)) == SVt_PVHV ) ) | |
599cee73 | 697 | warner(WARN_UNSAFE, "Reference found where even-sized list expected"); |
6a0deba8 | 698 | else |
599cee73 | 699 | warner(WARN_UNSAFE, "Odd number of elements in hash assignment"); |
6a0deba8 GS |
700 | } |
701 | tmpstr = NEWSV(29,0); | |
702 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
703 | if (magic) { | |
704 | if (SvSMAGICAL(tmpstr)) | |
705 | mg_set(tmpstr); | |
706 | if (!didstore) | |
8127e0e3 | 707 | sv_2mortal(tmpstr); |
6a0deba8 GS |
708 | } |
709 | TAINT_NOT; | |
710 | } | |
711 | relem++; | |
1930e939 | 712 | } |
a0d0e21e LW |
713 | } |
714 | break; | |
715 | default: | |
716 | if (SvTHINKFIRST(sv)) { | |
3280af22 | 717 | if (SvREADONLY(sv) && PL_curcop != &PL_compiling) { |
d689ffdd | 718 | if (!SvIMMORTAL(sv)) |
22c35a8c | 719 | DIE(PL_no_modify); |
a0d0e21e LW |
720 | if (relem <= lastrelem) |
721 | relem++; | |
722 | break; | |
723 | } | |
724 | if (SvROK(sv)) | |
725 | sv_unref(sv); | |
726 | } | |
727 | if (relem <= lastrelem) { | |
728 | sv_setsv(sv, *relem); | |
729 | *(relem++) = sv; | |
730 | } | |
731 | else | |
3280af22 | 732 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
733 | SvSETMAGIC(sv); |
734 | break; | |
735 | } | |
736 | } | |
3280af22 NIS |
737 | if (PL_delaymagic & ~DM_DELAY) { |
738 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 739 | #ifdef HAS_SETRESUID |
b28d0864 | 740 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
741 | #else |
742 | # ifdef HAS_SETREUID | |
3280af22 | 743 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
744 | # else |
745 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
746 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
747 | (void)setruid(PL_uid); | |
748 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 749 | } |
56febc5e AD |
750 | # endif /* HAS_SETRUID */ |
751 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
752 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
753 | (void)seteuid(PL_uid); | |
754 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 755 | } |
56febc5e | 756 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
757 | if (PL_delaymagic & DM_UID) { |
758 | if (PL_uid != PL_euid) | |
a0d0e21e | 759 | DIE("No setreuid available"); |
b28d0864 | 760 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 761 | } |
56febc5e AD |
762 | # endif /* HAS_SETREUID */ |
763 | #endif /* HAS_SETRESUID */ | |
3280af22 NIS |
764 | PL_uid = (int)PerlProc_getuid(); |
765 | PL_euid = (int)PerlProc_geteuid(); | |
a0d0e21e | 766 | } |
3280af22 | 767 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 768 | #ifdef HAS_SETRESGID |
b28d0864 | 769 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
770 | #else |
771 | # ifdef HAS_SETREGID | |
3280af22 | 772 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
773 | # else |
774 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
775 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
776 | (void)setrgid(PL_gid); | |
777 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 778 | } |
56febc5e AD |
779 | # endif /* HAS_SETRGID */ |
780 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
781 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
782 | (void)setegid(PL_gid); | |
783 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 784 | } |
56febc5e | 785 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
786 | if (PL_delaymagic & DM_GID) { |
787 | if (PL_gid != PL_egid) | |
a0d0e21e | 788 | DIE("No setregid available"); |
b28d0864 | 789 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 790 | } |
56febc5e AD |
791 | # endif /* HAS_SETREGID */ |
792 | #endif /* HAS_SETRESGID */ | |
3280af22 NIS |
793 | PL_gid = (int)PerlProc_getgid(); |
794 | PL_egid = (int)PerlProc_getegid(); | |
a0d0e21e | 795 | } |
3280af22 | 796 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 797 | } |
3280af22 | 798 | PL_delaymagic = 0; |
54310121 | 799 | |
800 | gimme = GIMME_V; | |
801 | if (gimme == G_VOID) | |
802 | SP = firstrelem - 1; | |
803 | else if (gimme == G_SCALAR) { | |
804 | dTARGET; | |
805 | SP = firstrelem; | |
806 | SETi(lastrelem - firstrelem + 1); | |
807 | } | |
808 | else { | |
a0d0e21e LW |
809 | if (ary || hash) |
810 | SP = lastrelem; | |
811 | else | |
812 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 813 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 814 | while (relem <= SP) |
3280af22 | 815 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 816 | } |
54310121 | 817 | RETURN; |
a0d0e21e LW |
818 | } |
819 | ||
8782bef2 GB |
820 | PP(pp_qr) |
821 | { | |
822 | djSP; | |
823 | register PMOP *pm = cPMOP; | |
824 | SV *rv = sv_newmortal(); | |
57668c4d | 825 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
826 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
827 | RETURNX(PUSHs(rv)); | |
828 | } | |
829 | ||
a0d0e21e LW |
830 | PP(pp_match) |
831 | { | |
4e35701f | 832 | djSP; dTARG; |
a0d0e21e LW |
833 | register PMOP *pm = cPMOP; |
834 | register char *t; | |
835 | register char *s; | |
836 | char *strend; | |
837 | I32 global; | |
22e551b9 | 838 | I32 r_flags; |
a0d0e21e | 839 | char *truebase; |
d9f97599 | 840 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 841 | bool rxtainted; |
a0d0e21e LW |
842 | I32 gimme = GIMME; |
843 | STRLEN len; | |
748a9306 | 844 | I32 minmatch = 0; |
3280af22 | 845 | I32 oldsave = PL_savestack_ix; |
f86702cc | 846 | I32 update_minmatch = 1; |
e60df1fa | 847 | I32 had_zerolen = 0; |
a0d0e21e | 848 | |
533c011a | 849 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
850 | TARG = POPs; |
851 | else { | |
54b9620d | 852 | TARG = DEFSV; |
a0d0e21e LW |
853 | EXTEND(SP,1); |
854 | } | |
c277df42 | 855 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
856 | s = SvPV(TARG, len); |
857 | strend = s + len; | |
858 | if (!s) | |
859 | DIE("panic: do_match"); | |
b3eb6a9b | 860 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 861 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 862 | TAINT_NOT; |
a0d0e21e | 863 | |
48c036b1 | 864 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 865 | failure: |
a0d0e21e LW |
866 | if (gimme == G_ARRAY) |
867 | RETURN; | |
868 | RETPUSHNO; | |
869 | } | |
870 | ||
3280af22 NIS |
871 | if (!rx->prelen && PL_curpm) { |
872 | pm = PL_curpm; | |
d9f97599 | 873 | rx = pm->op_pmregexp; |
a0d0e21e | 874 | } |
d9f97599 | 875 | if (rx->minlen > len) goto failure; |
c277df42 | 876 | |
a0d0e21e | 877 | truebase = t = s; |
ad94a511 IZ |
878 | |
879 | /* XXXX What part of this is needed with true \G-support? */ | |
a0d0e21e | 880 | if (global = pm->op_pmflags & PMf_GLOBAL) { |
d9f97599 | 881 | rx->startp[0] = 0; |
a0d0e21e LW |
882 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
883 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 884 | if (mg && mg->mg_len >= 0) { |
b7a35066 IZ |
885 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
886 | rx->endp[0] = rx->startp[0] = s + mg->mg_len; | |
748a9306 | 887 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 888 | update_minmatch = 0; |
748a9306 | 889 | } |
a0d0e21e LW |
890 | } |
891 | } | |
22e551b9 | 892 | r_flags = ((gimme != G_ARRAY && !global && rx->nparens) |
9d080a66 GS |
893 | || SvTEMP(TARG) || PL_sawampersand) |
894 | ? REXEC_COPY_STR : 0; | |
22e551b9 IZ |
895 | if (SvSCREAM(TARG) && rx->check_substr |
896 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
897 | && SvVALID(rx->check_substr)) | |
898 | r_flags |= REXEC_SCREAM; | |
899 | ||
a0d0e21e | 900 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
901 | SAVEINT(PL_multiline); |
902 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
903 | } |
904 | ||
905 | play_it_again: | |
d9f97599 GS |
906 | if (global && rx->startp[0]) { |
907 | t = s = rx->endp[0]; | |
908 | if ((s + rx->minlen) > strend) | |
a0d0e21e | 909 | goto nope; |
f86702cc | 910 | if (update_minmatch++) |
e60df1fa | 911 | minmatch = had_zerolen; |
a0d0e21e | 912 | } |
d9f97599 GS |
913 | if (rx->check_substr) { |
914 | if (!(rx->reganch & ROPT_NOSCAN)) { /* Floating checkstring. */ | |
22e551b9 | 915 | if (r_flags & REXEC_SCREAM) { |
c277df42 | 916 | I32 p = -1; |
a0ed51b3 | 917 | char *b; |
c277df42 | 918 | |
3280af22 | 919 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e | 920 | goto nope; |
a0ed51b3 | 921 | |
dfe13c55 | 922 | b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 | 923 | if (!(s = screaminstr(TARG, rx->check_substr, b - s, 0, &p, 0))) |
a0d0e21e | 924 | goto nope; |
a0ed51b3 LW |
925 | |
926 | if ((rx->reganch & ROPT_CHECK_ALL) | |
3280af22 | 927 | && !PL_sawampersand && !SvTAIL(rx->check_substr)) |
a0d0e21e LW |
928 | goto yup; |
929 | } | |
a0ed51b3 | 930 | else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min), |
c277df42 | 931 | (unsigned char*)strend, |
411d5715 | 932 | rx->check_substr, 0))) |
a0d0e21e | 933 | goto nope; |
3280af22 | 934 | else if ((rx->reganch & ROPT_CHECK_ALL) && !PL_sawampersand) |
a0d0e21e | 935 | goto yup; |
ee027f1d | 936 | if (s && rx->check_offset_max < s - t) { |
d9f97599 | 937 | ++BmUSEFUL(rx->check_substr); |
dfe13c55 | 938 | s = (char*)HOP((U8*)s, -rx->check_offset_max); |
a0d0e21e LW |
939 | } |
940 | else | |
941 | s = t; | |
942 | } | |
c277df42 IZ |
943 | /* Now checkstring is fixed, i.e. at fixed offset from the |
944 | beginning of match, and the match is anchored at s. */ | |
3280af22 | 945 | else if (!PL_multiline) { /* Anchored near beginning of string. */ |
c277df42 | 946 | I32 slen; |
dfe13c55 | 947 | char *b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 | 948 | if (*SvPVX(rx->check_substr) != *b |
d9f97599 | 949 | || ((slen = SvCUR(rx->check_substr)) > 1 |
a0ed51b3 | 950 | && memNE(SvPVX(rx->check_substr), b, slen))) |
bbce6d69 | 951 | goto nope; |
a0d0e21e | 952 | } |
a0ed51b3 | 953 | if (!(rx->reganch & ROPT_NAUGHTY) && --BmUSEFUL(rx->check_substr) < 0 |
d9f97599 GS |
954 | && rx->check_substr == rx->float_substr) { |
955 | SvREFCNT_dec(rx->check_substr); | |
956 | rx->check_substr = Nullsv; /* opt is being useless */ | |
957 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
958 | } |
959 | } | |
22e551b9 | 960 | if (CALLREGEXEC(rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 961 | { |
3280af22 | 962 | PL_curpm = pm; |
a0d0e21e | 963 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 964 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
965 | goto gotcha; |
966 | } | |
967 | else | |
968 | goto ret_no; | |
969 | /*NOTREACHED*/ | |
970 | ||
971 | gotcha: | |
72311751 GS |
972 | if (rxtainted) |
973 | RX_MATCH_TAINTED_on(rx); | |
974 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
975 | if (gimme == G_ARRAY) { |
976 | I32 iters, i, len; | |
977 | ||
d9f97599 | 978 | iters = rx->nparens; |
a0d0e21e LW |
979 | if (global && !iters) |
980 | i = 1; | |
981 | else | |
982 | i = 0; | |
c277df42 | 983 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 984 | EXTEND(SP, iters + i); |
bbce6d69 | 985 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
986 | for (i = !i; i <= iters; i++) { |
987 | PUSHs(sv_newmortal()); | |
988 | /*SUPPRESS 560*/ | |
d9f97599 GS |
989 | if ((s = rx->startp[i]) && rx->endp[i] ) { |
990 | len = rx->endp[i] - s; | |
a0d0e21e LW |
991 | sv_setpvn(*SP, s, len); |
992 | } | |
993 | } | |
994 | if (global) { | |
d9f97599 GS |
995 | truebase = rx->subbeg; |
996 | strend = rx->subend; | |
e60df1fa | 997 | had_zerolen = (rx->startp[0] && rx->startp[0] == rx->endp[0]); |
c277df42 | 998 | PUTBACK; /* EVAL blocks may use stack */ |
ad94a511 | 999 | r_flags |= REXEC_IGNOREPOS; |
a0d0e21e LW |
1000 | goto play_it_again; |
1001 | } | |
f7e33566 | 1002 | else if (!iters) |
bde848c5 | 1003 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 1004 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1005 | RETURN; |
1006 | } | |
1007 | else { | |
1008 | if (global) { | |
1009 | MAGIC* mg = 0; | |
1010 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
1011 | mg = mg_find(TARG, 'g'); | |
1012 | if (!mg) { | |
1013 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
1014 | mg = mg_find(TARG, 'g'); | |
1015 | } | |
d9f97599 GS |
1016 | if (rx->startp[0]) { |
1017 | mg->mg_len = rx->endp[0] - rx->subbeg; | |
1018 | if (rx->startp[0] == rx->endp[0]) | |
748a9306 LW |
1019 | mg->mg_flags |= MGf_MINMATCH; |
1020 | else | |
1021 | mg->mg_flags &= ~MGf_MINMATCH; | |
1022 | } | |
a0d0e21e | 1023 | } |
4633a7c4 | 1024 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1025 | RETPUSHYES; |
1026 | } | |
1027 | ||
c277df42 | 1028 | yup: /* Confirmed by check_substr */ |
72311751 GS |
1029 | if (rxtainted) |
1030 | RX_MATCH_TAINTED_on(rx); | |
1031 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
d9f97599 | 1032 | ++BmUSEFUL(rx->check_substr); |
3280af22 | 1033 | PL_curpm = pm; |
a0d0e21e | 1034 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1035 | pm->op_pmdynflags |= PMdf_USED; |
d9f97599 GS |
1036 | Safefree(rx->subbase); |
1037 | rx->subbase = Nullch; | |
a0d0e21e | 1038 | if (global) { |
d9f97599 GS |
1039 | rx->subbeg = truebase; |
1040 | rx->subend = strend; | |
1041 | rx->startp[0] = s; | |
1042 | rx->endp[0] = s + SvCUR(rx->check_substr); | |
a0d0e21e LW |
1043 | goto gotcha; |
1044 | } | |
3280af22 | 1045 | if (PL_sawampersand) { |
a0d0e21e LW |
1046 | char *tmps; |
1047 | ||
d9f97599 GS |
1048 | tmps = rx->subbase = savepvn(t, strend-t); |
1049 | rx->subbeg = tmps; | |
1050 | rx->subend = tmps + (strend-t); | |
1051 | tmps = rx->startp[0] = tmps + (s - t); | |
1052 | rx->endp[0] = tmps + SvCUR(rx->check_substr); | |
a0d0e21e | 1053 | } |
4633a7c4 | 1054 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1055 | RETPUSHYES; |
1056 | ||
1057 | nope: | |
d9f97599 GS |
1058 | if (rx->check_substr) |
1059 | ++BmUSEFUL(rx->check_substr); | |
a0d0e21e LW |
1060 | |
1061 | ret_no: | |
c90c0ff4 | 1062 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1063 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1064 | MAGIC* mg = mg_find(TARG, 'g'); | |
1065 | if (mg) | |
565764a8 | 1066 | mg->mg_len = -1; |
a0d0e21e LW |
1067 | } |
1068 | } | |
4633a7c4 | 1069 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1070 | if (gimme == G_ARRAY) |
1071 | RETURN; | |
1072 | RETPUSHNO; | |
1073 | } | |
1074 | ||
1075 | OP * | |
8ac85365 | 1076 | do_readline(void) |
a0d0e21e LW |
1077 | { |
1078 | dSP; dTARGETSTACKED; | |
1079 | register SV *sv; | |
1080 | STRLEN tmplen = 0; | |
1081 | STRLEN offset; | |
760ac839 | 1082 | PerlIO *fp; |
3280af22 | 1083 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1084 | register I32 type = PL_op->op_type; |
54310121 | 1085 | I32 gimme = GIMME_V; |
e79b0511 | 1086 | MAGIC *mg; |
a0d0e21e | 1087 | |
33c27489 | 1088 | if (mg = SvTIED_mg((SV*)PL_last_in_gv, 'q')) { |
e79b0511 | 1089 | PUSHMARK(SP); |
33c27489 | 1090 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 | 1091 | PUTBACK; |
1092 | ENTER; | |
54310121 | 1093 | perl_call_method("READLINE", gimme); |
e79b0511 | 1094 | LEAVE; |
1095 | SPAGAIN; | |
54310121 | 1096 | if (gimme == G_SCALAR) |
1097 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 | 1098 | RETURN; |
1099 | } | |
a0d0e21e LW |
1100 | fp = Nullfp; |
1101 | if (io) { | |
1102 | fp = IoIFP(io); | |
1103 | if (!fp) { | |
1104 | if (IoFLAGS(io) & IOf_ARGV) { | |
1105 | if (IoFLAGS(io) & IOf_START) { | |
1106 | IoFLAGS(io) &= ~IOf_START; | |
1107 | IoLINES(io) = 0; | |
3280af22 | 1108 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
9d116dd7 | 1109 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1110 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1111 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1112 | fp = IoIFP(io); |
1113 | goto have_fp; | |
a0d0e21e LW |
1114 | } |
1115 | } | |
3280af22 | 1116 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1117 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1118 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1119 | IoFLAGS(io) |= IOf_START; |
1120 | } | |
1121 | } | |
1122 | else if (type == OP_GLOB) { | |
1123 | SV *tmpcmd = NEWSV(55, 0); | |
1124 | SV *tmpglob = POPs; | |
1125 | ENTER; | |
1126 | SAVEFREESV(tmpcmd); | |
1127 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1128 | /* since spawning off a process is a real performance hit */ | |
1129 | { | |
1130 | #include <descrip.h> | |
1131 | #include <lib$routines.h> | |
1132 | #include <nam.h> | |
1133 | #include <rmsdef.h> | |
1134 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1135 | char vmsspec[NAM$C_MAXRSS+1]; | |
1136 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1137 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1138 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1139 | PerlIO *tmpfp; |
a0d0e21e LW |
1140 | STRLEN i; |
1141 | struct dsc$descriptor_s wilddsc | |
1142 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1143 | struct dsc$descriptor_vs rsdsc | |
1144 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1145 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1146 | ||
1147 | /* We could find out if there's an explicit dev/dir or version | |
1148 | by peeking into lib$find_file's internal context at | |
1149 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1150 | but that's unsupported, so I don't want to do it now and | |
1151 | have it bite someone in the future. */ | |
6ad3d225 | 1152 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1153 | cp = SvPV(tmpglob,i); |
1154 | for (; i; i--) { | |
1155 | if (cp[i] == ';') hasver = 1; | |
1156 | if (cp[i] == '.') { | |
1157 | if (sts) hasver = 1; | |
1158 | else sts = 1; | |
1159 | } | |
1160 | if (cp[i] == '/') { | |
1161 | hasdir = isunix = 1; | |
1162 | break; | |
748a9306 | 1163 | } |
a0d0e21e LW |
1164 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1165 | hasdir = 1; | |
1166 | break; | |
1167 | } | |
1168 | } | |
760ac839 | 1169 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1170 | Stat_t st; |
c6ed36e1 | 1171 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1172 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1173 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1174 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1175 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1176 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1177 | end = rstr + (unsigned long int) *rslt; | |
1178 | if (!hasver) while (*end != ';') end--; | |
1179 | *(end++) = '\n'; *end = '\0'; | |
1180 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1181 | if (hasdir) { | |
f86702cc | 1182 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1183 | begin = rstr; |
1184 | } | |
1185 | else { | |
1186 | begin = end; | |
1187 | while (*(--begin) != ']' && *begin != '>') ; | |
1188 | ++begin; | |
1189 | } | |
760ac839 | 1190 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1191 | } |
1192 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1193 | if (ok && sts != RMS$_NMF && |
1194 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1195 | if (!ok) { |
c07a80fd | 1196 | if (!(sts & 1)) { |
1197 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1198 | } | |
760ac839 | 1199 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1200 | fp = NULL; |
1201 | } | |
1202 | else { | |
760ac839 | 1203 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1204 | IoTYPE(io) = '<'; |
1205 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1206 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1207 | } |
1208 | } | |
1209 | } | |
1210 | #else /* !VMS */ | |
1211 | #ifdef DOSISH | |
67955e0c | 1212 | #ifdef OS2 |
1213 | sv_setpv(tmpcmd, "for a in "); | |
1214 | sv_catsv(tmpcmd, tmpglob); | |
1215 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1216 | #else | |
39e571d4 LM |
1217 | #ifdef DJGPP |
1218 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1219 | sv_catsv(tmpcmd, tmpglob); | |
1220 | #else | |
a0d0e21e LW |
1221 | sv_setpv(tmpcmd, "perlglob "); |
1222 | sv_catsv(tmpcmd, tmpglob); | |
1223 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1224 | #endif /* !DJGPP */ |
67955e0c | 1225 | #endif /* !OS2 */ |
1226 | #else /* !DOSISH */ | |
1227 | #if defined(CSH) | |
3280af22 | 1228 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1229 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1230 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1231 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1232 | #else |
1233 | sv_setpv(tmpcmd, "echo "); | |
1234 | sv_catsv(tmpcmd, tmpglob); | |
1235 | #if 'z' - 'a' == 25 | |
1236 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1237 | #else | |
1238 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1239 | #endif | |
1240 | #endif /* !CSH */ | |
67955e0c | 1241 | #endif /* !DOSISH */ |
3280af22 | 1242 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1243 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1244 | fp = IoIFP(io); |
1245 | #endif /* !VMS */ | |
1246 | LEAVE; | |
1247 | } | |
1248 | } | |
1249 | else if (type == OP_GLOB) | |
1250 | SP--; | |
1251 | } | |
1252 | if (!fp) { | |
599cee73 PM |
1253 | if (ckWARN(WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) |
1254 | warner(WARN_CLOSED, | |
1255 | "Read on closed filehandle <%s>", GvENAME(PL_last_in_gv)); | |
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 | } | |
a0d0e21e LW |
1280 | for (;;) { |
1281 | if (!sv_gets(sv, fp, offset)) { | |
760ac839 | 1282 | PerlIO_clearerr(fp); |
a0d0e21e | 1283 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1284 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1285 | if (fp) |
1286 | continue; | |
3280af22 | 1287 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1288 | IoFLAGS(io) |= IOf_START; |
1289 | } | |
1290 | else if (type == OP_GLOB) { | |
4eb79ab5 GS |
1291 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_CLOSED)) { |
1292 | warner(WARN_CLOSED, | |
1293 | "glob failed (child exited with status %d%s)", | |
1294 | STATUS_CURRENT >> 8, | |
cf494569 | 1295 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1296 | } |
a0d0e21e | 1297 | } |
54310121 | 1298 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1299 | (void)SvOK_off(TARG); |
1300 | PUSHTARG; | |
1301 | } | |
1302 | RETURN; | |
1303 | } | |
bbce6d69 | 1304 | /* This should not be marked tainted if the fp is marked clean */ |
1305 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1306 | TAINT; | |
1307 | SvTAINTED_on(sv); | |
1308 | } | |
a0d0e21e | 1309 | IoLINES(io)++; |
71be2cbc | 1310 | SvSETMAGIC(sv); |
a0d0e21e | 1311 | XPUSHs(sv); |
a0d0e21e LW |
1312 | if (type == OP_GLOB) { |
1313 | char *tmps; | |
1314 | ||
3280af22 | 1315 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1316 | tmps = SvEND(sv) - 1; |
3280af22 | 1317 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd | 1318 | *tmps = '\0'; |
1319 | SvCUR(sv)--; | |
1320 | } | |
1321 | } | |
a0d0e21e LW |
1322 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1323 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1324 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1325 | break; | |
3280af22 | 1326 | if (*tmps && PerlLIO_stat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1327 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1328 | continue; | |
1329 | } | |
1330 | } | |
54310121 | 1331 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1332 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1333 | SvLEN_set(sv, SvCUR(sv)+1); | |
1334 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1335 | } | |
1336 | sv = sv_2mortal(NEWSV(58, 80)); | |
1337 | continue; | |
1338 | } | |
54310121 | 1339 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1340 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1341 | if (SvCUR(sv) < 60) | |
1342 | SvLEN_set(sv, 80); | |
1343 | else | |
1344 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1345 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1346 | } | |
1347 | RETURN; | |
1348 | } | |
1349 | } | |
1350 | ||
1351 | PP(pp_enter) | |
1352 | { | |
4e35701f | 1353 | djSP; |
c09156bb | 1354 | register PERL_CONTEXT *cx; |
533c011a | 1355 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1356 | |
54310121 | 1357 | if (gimme == -1) { |
1358 | if (cxstack_ix >= 0) | |
1359 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1360 | else | |
1361 | gimme = G_SCALAR; | |
1362 | } | |
a0d0e21e LW |
1363 | |
1364 | ENTER; | |
1365 | ||
1366 | SAVETMPS; | |
924508f0 | 1367 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1368 | |
1369 | RETURN; | |
1370 | } | |
1371 | ||
1372 | PP(pp_helem) | |
1373 | { | |
4e35701f | 1374 | djSP; |
760ac839 | 1375 | HE* he; |
ae77835f | 1376 | SV **svp; |
a0d0e21e | 1377 | SV *keysv = POPs; |
a0d0e21e | 1378 | HV *hv = (HV*)POPs; |
533c011a NIS |
1379 | U32 lval = PL_op->op_flags & OPf_MOD; |
1380 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1381 | SV *sv; |
a0d0e21e | 1382 | |
ae77835f MB |
1383 | if (SvTYPE(hv) == SVt_PVHV) { |
1384 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1385 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1386 | } |
1387 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 SM |
1388 | if (PL_op->op_private & OPpLVAL_INTRO) |
1389 | DIE("Can't localize pseudo-hash element"); | |
97fcbf96 | 1390 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1391 | } |
c750a3ec | 1392 | else { |
a0d0e21e | 1393 | RETPUSHUNDEF; |
c750a3ec | 1394 | } |
a0d0e21e | 1395 | if (lval) { |
3280af22 | 1396 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 1397 | SV* lv; |
1398 | SV* key2; | |
2d8e6c8d GS |
1399 | if (!defer) { |
1400 | STRLEN n_a; | |
1401 | DIE(PL_no_helem, SvPV(keysv, n_a)); | |
1402 | } | |
68dc0745 | 1403 | lv = sv_newmortal(); |
1404 | sv_upgrade(lv, SVt_PVLV); | |
1405 | LvTYPE(lv) = 'y'; | |
1406 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1407 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1408 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1409 | LvTARGLEN(lv) = 1; | |
1410 | PUSHs(lv); | |
1411 | RETURN; | |
1412 | } | |
533c011a | 1413 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1414 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1415 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1416 | else |
161b7d16 | 1417 | save_helem(hv, keysv, svp); |
5f05dabc | 1418 | } |
533c011a NIS |
1419 | else if (PL_op->op_private & OPpDEREF) |
1420 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1421 | } |
3280af22 | 1422 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1423 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1424 | * Pushing the magical RHS on to the stack is useless, since | |
1425 | * that magic is soon destined to be misled by the local(), | |
1426 | * and thus the later pp_sassign() will fail to mg_get() the | |
1427 | * old value. This should also cure problems with delayed | |
1428 | * mg_get()s. GSAR 98-07-03 */ | |
1429 | if (!lval && SvGMAGICAL(sv)) | |
1430 | sv = sv_mortalcopy(sv); | |
1431 | PUSHs(sv); | |
a0d0e21e LW |
1432 | RETURN; |
1433 | } | |
1434 | ||
1435 | PP(pp_leave) | |
1436 | { | |
4e35701f | 1437 | djSP; |
c09156bb | 1438 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1439 | register SV **mark; |
1440 | SV **newsp; | |
1441 | PMOP *newpm; | |
1442 | I32 gimme; | |
1443 | ||
533c011a | 1444 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1445 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1446 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1447 | } |
1448 | ||
1449 | POPBLOCK(cx,newpm); | |
1450 | ||
533c011a | 1451 | gimme = OP_GIMME(PL_op, -1); |
54310121 | 1452 | if (gimme == -1) { |
1453 | if (cxstack_ix >= 0) | |
1454 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1455 | else | |
1456 | gimme = G_SCALAR; | |
1457 | } | |
a0d0e21e | 1458 | |
a1f49e72 | 1459 | TAINT_NOT; |
54310121 | 1460 | if (gimme == G_VOID) |
1461 | SP = newsp; | |
1462 | else if (gimme == G_SCALAR) { | |
1463 | MARK = newsp + 1; | |
1464 | if (MARK <= SP) | |
1465 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1466 | *MARK = TOPs; | |
1467 | else | |
1468 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1469 | else { |
54310121 | 1470 | MEXTEND(mark,0); |
3280af22 | 1471 | *MARK = &PL_sv_undef; |
a0d0e21e | 1472 | } |
54310121 | 1473 | SP = MARK; |
a0d0e21e | 1474 | } |
54310121 | 1475 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1476 | /* in case LEAVE wipes old return values */ |
1477 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1478 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1479 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1480 | TAINT_NOT; /* Each item is independent */ |
1481 | } | |
1482 | } | |
a0d0e21e | 1483 | } |
3280af22 | 1484 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1485 | |
1486 | LEAVE; | |
1487 | ||
1488 | RETURN; | |
1489 | } | |
1490 | ||
1491 | PP(pp_iter) | |
1492 | { | |
4e35701f | 1493 | djSP; |
c09156bb | 1494 | register PERL_CONTEXT *cx; |
5f05dabc | 1495 | SV* sv; |
4633a7c4 | 1496 | AV* av; |
a0d0e21e | 1497 | |
924508f0 | 1498 | EXTEND(SP, 1); |
a0d0e21e | 1499 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1500 | if (CxTYPE(cx) != CXt_LOOP) |
a0d0e21e LW |
1501 | DIE("panic: pp_iter"); |
1502 | ||
4633a7c4 | 1503 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1504 | if (SvTYPE(av) != SVt_PVAV) { |
1505 | /* iterate ($min .. $max) */ | |
1506 | if (cx->blk_loop.iterlval) { | |
1507 | /* string increment */ | |
1508 | register SV* cur = cx->blk_loop.iterlval; | |
1509 | STRLEN maxlen; | |
1510 | char *max = SvPV((SV*)av, maxlen); | |
1511 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1512 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1513 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1514 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1515 | { | |
eaa5c2d6 GA |
1516 | /* safe to reuse old SV */ |
1517 | sv_setsv(*cx->blk_loop.itervar, cur); | |
1518 | } | |
1519 | else | |
1520 | #endif | |
1521 | { | |
1522 | /* we need a fresh SV every time so that loop body sees a | |
1523 | * completely new SV for closures/references to work as | |
1524 | * they used to */ | |
1525 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1526 | *cx->blk_loop.itervar = newSVsv(cur); | |
1527 | } | |
89ea2908 GA |
1528 | if (strEQ(SvPVX(cur), max)) |
1529 | sv_setiv(cur, 0); /* terminate next time */ | |
1530 | else | |
1531 | sv_inc(cur); | |
1532 | RETPUSHYES; | |
1533 | } | |
1534 | RETPUSHNO; | |
1535 | } | |
1536 | /* integer increment */ | |
1537 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1538 | RETPUSHNO; | |
7f61b687 | 1539 | |
eaa5c2d6 | 1540 | #ifndef USE_THREADS /* don't risk potential race */ |
39ca2bb7 SM |
1541 | if (SvREFCNT(*cx->blk_loop.itervar) == 1 |
1542 | && !SvMAGICAL(*cx->blk_loop.itervar)) | |
1543 | { | |
eaa5c2d6 GA |
1544 | /* safe to reuse old SV */ |
1545 | sv_setiv(*cx->blk_loop.itervar, cx->blk_loop.iterix++); | |
1546 | } | |
1547 | else | |
1548 | #endif | |
1549 | { | |
1550 | /* we need a fresh SV every time so that loop body sees a | |
1551 | * completely new SV for closures/references to work as they | |
1552 | * used to */ | |
1553 | SvREFCNT_dec(*cx->blk_loop.itervar); | |
1554 | *cx->blk_loop.itervar = newSViv(cx->blk_loop.iterix++); | |
1555 | } | |
89ea2908 GA |
1556 | RETPUSHYES; |
1557 | } | |
1558 | ||
1559 | /* iterate array */ | |
3280af22 | 1560 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1561 | RETPUSHNO; |
a0d0e21e | 1562 | |
7a4c00b4 | 1563 | SvREFCNT_dec(*cx->blk_loop.itervar); |
a0d0e21e | 1564 | |
93965878 NIS |
1565 | if (sv = (SvMAGICAL(av)) |
1566 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1567 | : AvARRAY(av)[++cx->blk_loop.iterix]) | |
a0d0e21e | 1568 | SvTEMP_off(sv); |
a0d0e21e | 1569 | else |
3280af22 NIS |
1570 | sv = &PL_sv_undef; |
1571 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1572 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc | 1573 | if (lv && SvREFCNT(lv) > 1) { |
1574 | SvREFCNT_dec(lv); | |
1575 | lv = Nullsv; | |
1576 | } | |
5f05dabc | 1577 | if (lv) |
1578 | SvREFCNT_dec(LvTARG(lv)); | |
1579 | else { | |
68dc0745 | 1580 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1581 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1582 | LvTYPE(lv) = 'y'; |
68dc0745 | 1583 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc | 1584 | } |
1585 | LvTARG(lv) = SvREFCNT_inc(av); | |
1586 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
8ac85365 | 1587 | LvTARGLEN(lv) = (UV) -1; |
5f05dabc | 1588 | sv = (SV*)lv; |
1589 | } | |
a0d0e21e | 1590 | |
7a4c00b4 | 1591 | *cx->blk_loop.itervar = SvREFCNT_inc(sv); |
a0d0e21e LW |
1592 | RETPUSHYES; |
1593 | } | |
1594 | ||
1595 | PP(pp_subst) | |
1596 | { | |
4e35701f | 1597 | djSP; dTARG; |
a0d0e21e LW |
1598 | register PMOP *pm = cPMOP; |
1599 | PMOP *rpm = pm; | |
1600 | register SV *dstr; | |
1601 | register char *s; | |
1602 | char *strend; | |
1603 | register char *m; | |
1604 | char *c; | |
1605 | register char *d; | |
1606 | STRLEN clen; | |
1607 | I32 iters = 0; | |
1608 | I32 maxiters; | |
1609 | register I32 i; | |
1610 | bool once; | |
71be2cbc | 1611 | bool rxtainted; |
a0d0e21e | 1612 | char *orig; |
22e551b9 | 1613 | I32 r_flags; |
d9f97599 | 1614 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1615 | STRLEN len; |
1616 | int force_on_match = 0; | |
3280af22 | 1617 | I32 oldsave = PL_savestack_ix; |
c277df42 | 1618 | I32 update_minmatch = 1; |
a0d0e21e | 1619 | |
5cd24f17 | 1620 | /* known replacement string? */ |
1621 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1622 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1623 | TARG = POPs; |
1624 | else { | |
54b9620d | 1625 | TARG = DEFSV; |
a0d0e21e | 1626 | EXTEND(SP,1); |
8ec5e241 | 1627 | } |
68dc0745 | 1628 | if (SvREADONLY(TARG) |
1629 | || (SvTYPE(TARG) > SVt_PVLV | |
1630 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
22c35a8c | 1631 | croak(PL_no_modify); |
8ec5e241 NIS |
1632 | PUTBACK; |
1633 | ||
a0d0e21e | 1634 | s = SvPV(TARG, len); |
68dc0745 | 1635 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1636 | force_on_match = 1; |
b3eb6a9b | 1637 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1638 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1639 | if (PL_tainted) | |
b3eb6a9b | 1640 | rxtainted |= 2; |
9212bbba | 1641 | TAINT_NOT; |
a0d0e21e LW |
1642 | |
1643 | force_it: | |
1644 | if (!pm || !s) | |
1645 | DIE("panic: do_subst"); | |
1646 | ||
1647 | strend = s + len; | |
2beec16e IZ |
1648 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1649 | position, once with zero-length, | |
1650 | second time with non-zero. */ | |
a0d0e21e | 1651 | |
3280af22 NIS |
1652 | if (!rx->prelen && PL_curpm) { |
1653 | pm = PL_curpm; | |
d9f97599 | 1654 | rx = pm->op_pmregexp; |
a0d0e21e | 1655 | } |
22e551b9 | 1656 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1657 | ? REXEC_COPY_STR : 0; |
22e551b9 IZ |
1658 | if (SvSCREAM(TARG) && rx->check_substr |
1659 | && SvTYPE(rx->check_substr) == SVt_PVBM | |
1660 | && SvVALID(rx->check_substr)) | |
1661 | r_flags |= REXEC_SCREAM; | |
a0d0e21e | 1662 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1663 | SAVEINT(PL_multiline); |
1664 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1665 | } |
1666 | orig = m = s; | |
d9f97599 GS |
1667 | if (rx->check_substr) { |
1668 | if (!(rx->reganch & ROPT_NOSCAN)) { /* It floats. */ | |
22e551b9 | 1669 | if (r_flags & REXEC_SCREAM) { |
c277df42 | 1670 | I32 p = -1; |
a0ed51b3 | 1671 | char *b; |
c277df42 | 1672 | |
3280af22 | 1673 | if (PL_screamfirst[BmRARE(rx->check_substr)] < 0) |
a0d0e21e | 1674 | goto nope; |
a0ed51b3 | 1675 | |
dfe13c55 | 1676 | b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 | 1677 | if (!(s = screaminstr(TARG, rx->check_substr, b - s, 0, &p, 0))) |
a0d0e21e LW |
1678 | goto nope; |
1679 | } | |
a0ed51b3 | 1680 | else if (!(s = fbm_instr((unsigned char*)HOP((U8*)s, rx->check_offset_min), |
c277df42 | 1681 | (unsigned char*)strend, |
411d5715 | 1682 | rx->check_substr, 0))) |
a0d0e21e | 1683 | goto nope; |
d9f97599 GS |
1684 | if (s && rx->check_offset_max < s - m) { |
1685 | ++BmUSEFUL(rx->check_substr); | |
dfe13c55 | 1686 | s = (char*)HOP((U8*)s, -rx->check_offset_max); |
a0d0e21e LW |
1687 | } |
1688 | else | |
1689 | s = m; | |
1690 | } | |
c277df42 IZ |
1691 | /* Now checkstring is fixed, i.e. at fixed offset from the |
1692 | beginning of match, and the match is anchored at s. */ | |
3280af22 | 1693 | else if (!PL_multiline) { /* Anchored at beginning of string. */ |
c277df42 | 1694 | I32 slen; |
dfe13c55 | 1695 | char *b = (char*)HOP((U8*)s, rx->check_offset_min); |
a0ed51b3 | 1696 | if (*SvPVX(rx->check_substr) != *b |
d9f97599 | 1697 | || ((slen = SvCUR(rx->check_substr)) > 1 |
a0ed51b3 | 1698 | && memNE(SvPVX(rx->check_substr), b, slen))) |
bbce6d69 | 1699 | goto nope; |
a0d0e21e | 1700 | } |
a0ed51b3 | 1701 | if (!(rx->reganch & ROPT_NAUGHTY) && --BmUSEFUL(rx->check_substr) < 0 |
d9f97599 GS |
1702 | && rx->check_substr == rx->float_substr) { |
1703 | SvREFCNT_dec(rx->check_substr); | |
1704 | rx->check_substr = Nullsv; /* opt is being useless */ | |
1705 | rx->float_substr = Nullsv; | |
a0d0e21e LW |
1706 | } |
1707 | } | |
71be2cbc | 1708 | |
1709 | /* only replace once? */ | |
a0d0e21e | 1710 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc | 1711 | |
1712 | /* known replacement string? */ | |
5cd24f17 | 1713 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc | 1714 | |
1715 | /* can do inplace substitution? */ | |
22e551b9 | 1716 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1717 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
22e551b9 | 1718 | if (!CALLREGEXEC(rx, s, strend, orig, 0, TARG, NULL, r_flags)) { |
8ec5e241 | 1719 | SPAGAIN; |
3280af22 | 1720 | PUSHs(&PL_sv_no); |
71be2cbc | 1721 | LEAVE_SCOPE(oldsave); |
1722 | RETURN; | |
1723 | } | |
1724 | if (force_on_match) { | |
1725 | force_on_match = 0; | |
1726 | s = SvPV_force(TARG, len); | |
1727 | goto force_it; | |
1728 | } | |
71be2cbc | 1729 | d = s; |
3280af22 | 1730 | PL_curpm = pm; |
71be2cbc | 1731 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1732 | if (once) { | |
48c036b1 | 1733 | rxtainted |= RX_MATCH_TAINTED(rx); |
d9f97599 GS |
1734 | if (rx->subbase) { |
1735 | m = orig + (rx->startp[0] - rx->subbase); | |
1736 | d = orig + (rx->endp[0] - rx->subbase); | |
c277df42 | 1737 | } else { |
d9f97599 GS |
1738 | m = rx->startp[0]; |
1739 | d = rx->endp[0]; | |
c277df42 | 1740 | } |
71be2cbc | 1741 | s = orig; |
1742 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1743 | if (clen) { | |
1744 | Copy(c, m, clen, char); | |
1745 | m += clen; | |
a0d0e21e | 1746 | } |
71be2cbc | 1747 | i = strend - d; |
1748 | if (i > 0) { | |
1749 | Move(d, m, i, char); | |
1750 | m += i; | |
a0d0e21e | 1751 | } |
71be2cbc | 1752 | *m = '\0'; |
1753 | SvCUR_set(TARG, m - s); | |
1754 | } | |
1755 | /*SUPPRESS 560*/ | |
1756 | else if (i = m - s) { /* faster from front */ | |
1757 | d -= clen; | |
1758 | m = d; | |
1759 | sv_chop(TARG, d-i); | |
1760 | s += i; | |
1761 | while (i--) | |
1762 | *--d = *--s; | |
1763 | if (clen) | |
1764 | Copy(c, m, clen, char); | |
1765 | } | |
1766 | else if (clen) { | |
1767 | d -= clen; | |
1768 | sv_chop(TARG, d); | |
1769 | Copy(c, d, clen, char); | |
1770 | } | |
1771 | else { | |
1772 | sv_chop(TARG, d); | |
1773 | } | |
48c036b1 | 1774 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1775 | SPAGAIN; |
3280af22 | 1776 | PUSHs(&PL_sv_yes); |
71be2cbc | 1777 | } |
1778 | else { | |
71be2cbc | 1779 | do { |
1780 | if (iters++ > maxiters) | |
1781 | DIE("Substitution loop"); | |
d9f97599 GS |
1782 | rxtainted |= RX_MATCH_TAINTED(rx); |
1783 | m = rx->startp[0]; | |
71be2cbc | 1784 | /*SUPPRESS 560*/ |
1785 | if (i = m - s) { | |
1786 | if (s != d) | |
1787 | Move(s, d, i, char); | |
1788 | d += i; | |
a0d0e21e | 1789 | } |
71be2cbc | 1790 | if (clen) { |
1791 | Copy(c, d, clen, char); | |
1792 | d += clen; | |
1793 | } | |
d9f97599 | 1794 | s = rx->endp[0]; |
15e52e56 | 1795 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, |
c277df42 | 1796 | Nullsv, NULL, 0)); /* don't match same null twice */ |
71be2cbc | 1797 | if (s != d) { |
1798 | i = strend - s; | |
1799 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1800 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1801 | } |
48c036b1 | 1802 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1803 | SPAGAIN; |
71be2cbc | 1804 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1805 | } |
71be2cbc | 1806 | (void)SvPOK_only(TARG); |
48c036b1 | 1807 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1808 | if (SvSMAGICAL(TARG)) { |
1809 | PUTBACK; | |
1810 | mg_set(TARG); | |
1811 | SPAGAIN; | |
1812 | } | |
9212bbba | 1813 | SvTAINT(TARG); |
71be2cbc | 1814 | LEAVE_SCOPE(oldsave); |
1815 | RETURN; | |
a0d0e21e | 1816 | } |
71be2cbc | 1817 | |
22e551b9 | 1818 | if (CALLREGEXEC(rx, s, strend, orig, 0, TARG, NULL, r_flags)) { |
a0d0e21e LW |
1819 | if (force_on_match) { |
1820 | force_on_match = 0; | |
1821 | s = SvPV_force(TARG, len); | |
1822 | goto force_it; | |
1823 | } | |
48c036b1 | 1824 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1825 | dstr = NEWSV(25, len); |
a0d0e21e | 1826 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1827 | PL_curpm = pm; |
a0d0e21e | 1828 | if (!c) { |
c09156bb | 1829 | register PERL_CONTEXT *cx; |
8ec5e241 | 1830 | SPAGAIN; |
a0d0e21e LW |
1831 | PUSHSUBST(cx); |
1832 | RETURNOP(cPMOP->op_pmreplroot); | |
1833 | } | |
ad94a511 | 1834 | r_flags |= REXEC_IGNOREPOS; |
a0d0e21e LW |
1835 | do { |
1836 | if (iters++ > maxiters) | |
1837 | DIE("Substitution loop"); | |
d9f97599 GS |
1838 | rxtainted |= RX_MATCH_TAINTED(rx); |
1839 | if (rx->subbase && rx->subbase != orig) { | |
a0d0e21e LW |
1840 | m = s; |
1841 | s = orig; | |
d9f97599 | 1842 | orig = rx->subbase; |
a0d0e21e LW |
1843 | s = orig + (m - s); |
1844 | strend = s + (strend - m); | |
1845 | } | |
d9f97599 | 1846 | m = rx->startp[0]; |
a0d0e21e | 1847 | sv_catpvn(dstr, s, m-s); |
d9f97599 | 1848 | s = rx->endp[0]; |
a0d0e21e LW |
1849 | if (clen) |
1850 | sv_catpvn(dstr, c, clen); | |
1851 | if (once) | |
1852 | break; | |
ad94a511 | 1853 | } while (CALLREGEXEC(rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e | 1854 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1855 | |
4633a7c4 | 1856 | (void)SvOOK_off(TARG); |
cb0b1708 | 1857 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1858 | SvPVX(TARG) = SvPVX(dstr); |
1859 | SvCUR_set(TARG, SvCUR(dstr)); | |
1860 | SvLEN_set(TARG, SvLEN(dstr)); | |
1861 | SvPVX(dstr) = 0; | |
1862 | sv_free(dstr); | |
1863 | ||
48c036b1 | 1864 | TAINT_IF(rxtainted & 1); |
f878fbec | 1865 | SPAGAIN; |
48c036b1 GS |
1866 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1867 | ||
a0d0e21e | 1868 | (void)SvPOK_only(TARG); |
48c036b1 | 1869 | TAINT_IF(rxtainted); |
a0d0e21e | 1870 | SvSETMAGIC(TARG); |
9212bbba | 1871 | SvTAINT(TARG); |
4633a7c4 | 1872 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1873 | RETURN; |
1874 | } | |
5cd24f17 | 1875 | goto ret_no; |
a0d0e21e LW |
1876 | |
1877 | nope: | |
d9f97599 | 1878 | ++BmUSEFUL(rx->check_substr); |
5cd24f17 | 1879 | |
8ec5e241 NIS |
1880 | ret_no: |
1881 | SPAGAIN; | |
3280af22 | 1882 | PUSHs(&PL_sv_no); |
4633a7c4 | 1883 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1884 | RETURN; |
1885 | } | |
1886 | ||
1887 | PP(pp_grepwhile) | |
1888 | { | |
4e35701f | 1889 | djSP; |
a0d0e21e LW |
1890 | |
1891 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
1892 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
1893 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
1894 | LEAVE; /* exit inner scope */ |
1895 | ||
1896 | /* All done yet? */ | |
3280af22 | 1897 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 1898 | I32 items; |
54310121 | 1899 | I32 gimme = GIMME_V; |
a0d0e21e LW |
1900 | |
1901 | LEAVE; /* exit outer scope */ | |
1902 | (void)POPMARK; /* pop src */ | |
3280af22 | 1903 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1904 | (void)POPMARK; /* pop dst */ |
3280af22 | 1905 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1906 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1907 | dTARGET; |
1908 | XPUSHi(items); | |
a0d0e21e | 1909 | } |
54310121 | 1910 | else if (gimme == G_ARRAY) |
1911 | SP += items; | |
a0d0e21e LW |
1912 | RETURN; |
1913 | } | |
1914 | else { | |
1915 | SV *src; | |
1916 | ||
1917 | ENTER; /* enter inner scope */ | |
3280af22 | 1918 | SAVESPTR(PL_curpm); |
a0d0e21e | 1919 | |
3280af22 | 1920 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1921 | SvTEMP_off(src); |
54b9620d | 1922 | DEFSV = src; |
a0d0e21e LW |
1923 | |
1924 | RETURNOP(cLOGOP->op_other); | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | PP(pp_leavesub) | |
1929 | { | |
4e35701f | 1930 | djSP; |
a0d0e21e LW |
1931 | SV **mark; |
1932 | SV **newsp; | |
1933 | PMOP *newpm; | |
1934 | I32 gimme; | |
c09156bb | 1935 | register PERL_CONTEXT *cx; |
f86702cc | 1936 | struct block_sub cxsub; |
a0d0e21e LW |
1937 | |
1938 | POPBLOCK(cx,newpm); | |
f86702cc | 1939 | POPSUB1(cx); /* Delay POPSUB2 until stack values are safe */ |
1940 | ||
a1f49e72 | 1941 | TAINT_NOT; |
a0d0e21e LW |
1942 | if (gimme == G_SCALAR) { |
1943 | MARK = newsp + 1; | |
a29cdaf0 IZ |
1944 | if (MARK <= SP) { |
1945 | if (cxsub.cv && CvDEPTH(cxsub.cv) > 1) { | |
1946 | if (SvTEMP(TOPs)) { | |
1947 | *MARK = SvREFCNT_inc(TOPs); | |
1948 | FREETMPS; | |
1949 | sv_2mortal(*MARK); | |
1950 | } else { | |
1951 | FREETMPS; | |
1952 | *MARK = sv_mortalcopy(TOPs); | |
1953 | } | |
1954 | } else | |
1955 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
1956 | } else { | |
f86702cc | 1957 | MEXTEND(MARK, 0); |
3280af22 | 1958 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
1959 | } |
1960 | SP = MARK; | |
1961 | } | |
54310121 | 1962 | else if (gimme == G_ARRAY) { |
f86702cc | 1963 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 1964 | if (!SvTEMP(*MARK)) { |
f86702cc | 1965 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
1966 | TAINT_NOT; /* Each item is independent */ |
1967 | } | |
f86702cc | 1968 | } |
a0d0e21e | 1969 | } |
f86702cc | 1970 | PUTBACK; |
1971 | ||
1972 | POPSUB2(); /* Stack values are safe: release CV and @_ ... */ | |
3280af22 | 1973 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
1974 | |
1975 | LEAVE; | |
a0d0e21e LW |
1976 | return pop_return(); |
1977 | } | |
1978 | ||
76e3520e | 1979 | STATIC CV * |
8ac85365 | 1980 | get_db_sub(SV **svp, CV *cv) |
3de9ffa1 MB |
1981 | { |
1982 | dTHR; | |
3280af22 | 1983 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
1984 | |
1985 | if (!PERLDB_SUB_NN) { | |
1986 | GV *gv = CvGV(cv); | |
1987 | ||
1988 | save_item(dbsv); | |
1989 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
1990 | || strEQ(GvNAME(gv), "END") | |
1991 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
1992 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
1993 | && (gv = (GV*)*svp) ))) { | |
1994 | /* Use GV from the stack as a fallback. */ | |
1995 | /* GV is potentially non-unique, or contain different CV. */ | |
1996 | sv_setsv(dbsv, newRV((SV*)cv)); | |
1997 | } | |
1998 | else { | |
1999 | gv_efullname3(dbsv, gv, Nullch); | |
2000 | } | |
3de9ffa1 MB |
2001 | } |
2002 | else { | |
491527d0 GS |
2003 | SvUPGRADE(dbsv, SVt_PVIV); |
2004 | SvIOK_on(dbsv); | |
2005 | SAVEIV(SvIVX(dbsv)); | |
2006 | SvIVX(dbsv) = (IV)cv; /* Do it the quickest way */ | |
3de9ffa1 | 2007 | } |
491527d0 | 2008 | |
3de9ffa1 | 2009 | if (CvXSUB(cv)) |
3280af22 NIS |
2010 | PL_curcopdb = PL_curcop; |
2011 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2012 | return cv; |
2013 | } | |
2014 | ||
a0d0e21e LW |
2015 | PP(pp_entersub) |
2016 | { | |
4e35701f | 2017 | djSP; dPOPss; |
a0d0e21e LW |
2018 | GV *gv; |
2019 | HV *stash; | |
2020 | register CV *cv; | |
c09156bb | 2021 | register PERL_CONTEXT *cx; |
5d94fbed | 2022 | I32 gimme; |
533c011a | 2023 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2024 | |
2025 | if (!sv) | |
2026 | DIE("Not a CODE reference"); | |
2027 | switch (SvTYPE(sv)) { | |
2028 | default: | |
2029 | if (!SvROK(sv)) { | |
748a9306 | 2030 | char *sym; |
2d8e6c8d | 2031 | STRLEN n_a; |
748a9306 | 2032 | |
3280af22 | 2033 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2034 | if (hasargs) |
3280af22 | 2035 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2036 | RETURN; |
fb73857a | 2037 | } |
15ff848f CS |
2038 | if (SvGMAGICAL(sv)) { |
2039 | mg_get(sv); | |
2040 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2041 | } | |
2042 | else | |
2d8e6c8d | 2043 | sym = SvPV(sv, n_a); |
15ff848f | 2044 | if (!sym) |
22c35a8c | 2045 | DIE(PL_no_usym, "a subroutine"); |
533c011a | 2046 | if (PL_op->op_private & HINT_STRICT_REFS) |
22c35a8c | 2047 | DIE(PL_no_symref, sym, "a subroutine"); |
748a9306 | 2048 | cv = perl_get_cv(sym, TRUE); |
a0d0e21e LW |
2049 | break; |
2050 | } | |
f5284f61 IZ |
2051 | { |
2052 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2053 | tryAMAGICunDEREF(to_cv); | |
2054 | } | |
a0d0e21e LW |
2055 | cv = (CV*)SvRV(sv); |
2056 | if (SvTYPE(cv) == SVt_PVCV) | |
2057 | break; | |
2058 | /* FALL THROUGH */ | |
2059 | case SVt_PVHV: | |
2060 | case SVt_PVAV: | |
2061 | DIE("Not a CODE reference"); | |
2062 | case SVt_PVCV: | |
2063 | cv = (CV*)sv; | |
2064 | break; | |
2065 | case SVt_PVGV: | |
8ebc5c01 | 2066 | if (!(cv = GvCVu((GV*)sv))) |
a0d0e21e LW |
2067 | cv = sv_2cv(sv, &stash, &gv, TRUE); |
2068 | break; | |
2069 | } | |
2070 | ||
2071 | ENTER; | |
2072 | SAVETMPS; | |
2073 | ||
2074 | retry: | |
2075 | if (!cv) | |
2076 | DIE("Not a CODE reference"); | |
2077 | ||
2078 | if (!CvROOT(cv) && !CvXSUB(cv)) { | |
44a8e56a | 2079 | GV* autogv; |
22239a37 | 2080 | SV* sub_name; |
44a8e56a | 2081 | |
2082 | /* anonymous or undef'd function leaves us no recourse */ | |
2083 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
2084 | DIE("Undefined subroutine called"); | |
2085 | /* autoloaded stub? */ | |
2086 | if (cv != GvCV(gv)) { | |
2087 | cv = GvCV(gv); | |
2088 | goto retry; | |
a0d0e21e | 2089 | } |
44a8e56a | 2090 | /* should call AUTOLOAD now? */ |
54310121 | 2091 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), |
2092 | FALSE))) | |
2093 | { | |
44a8e56a | 2094 | cv = GvCV(autogv); |
2095 | goto retry; | |
a0d0e21e | 2096 | } |
44a8e56a | 2097 | /* sorry */ |
22239a37 NIS |
2098 | sub_name = sv_newmortal(); |
2099 | gv_efullname3(sub_name, gv, Nullch); | |
2100 | DIE("Undefined subroutine &%s called", SvPVX(sub_name)); | |
a0d0e21e LW |
2101 | } |
2102 | ||
54310121 | 2103 | gimme = GIMME_V; |
533c011a | 2104 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) |
4f01c5a5 | 2105 | cv = get_db_sub(&sv, cv); |
3de9ffa1 MB |
2106 | if (!cv) |
2107 | DIE("No DBsub routine"); | |
a0d0e21e | 2108 | |
11343788 | 2109 | #ifdef USE_THREADS |
3de9ffa1 MB |
2110 | /* |
2111 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2112 | * If so, we gain a lock on the CV, the first argument or the |
2113 | * stash (for static methods), as appropriate. This has to be | |
2114 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2115 | * reschedule by returning a new op. | |
3de9ffa1 | 2116 | */ |
11343788 | 2117 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2118 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2119 | MAGIC *mg; | |
2120 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2121 | if (SP > PL_stack_base + TOPMARK) |
2122 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab MB |
2123 | else { |
2124 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2125 | croak("no argument for locked method call"); | |
2126 | } | |
2127 | if (SvROK(sv)) | |
2128 | sv = SvRV(sv); | |
458fb581 MB |
2129 | else { |
2130 | STRLEN len; | |
2131 | char *stashname = SvPV(sv, len); | |
2132 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2133 | } | |
77a005ab MB |
2134 | } |
2135 | else { | |
2136 | sv = (SV*)cv; | |
2137 | } | |
2138 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2139 | mg = condpair_magic(sv); | |
2140 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2141 | if (MgOWNER(mg) == thr) | |
2142 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2143 | else { | |
2144 | while (MgOWNER(mg)) | |
2145 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2146 | MgOWNER(mg) = thr; | |
8b73bbec | 2147 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "%p: pp_entersub lock %p\n", |
1fd28e87 | 2148 | thr, sv);) |
77a005ab MB |
2149 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
2150 | save_destructor(unlock_condpair, sv); | |
11343788 | 2151 | } |
77a005ab | 2152 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2153 | } |
3de9ffa1 MB |
2154 | /* |
2155 | * Now we have permission to enter the sub, we must distinguish | |
2156 | * four cases. (0) It's an XSUB (in which case we don't care | |
2157 | * about ownership); (1) it's ours already (and we're recursing); | |
2158 | * (2) it's free (but we may already be using a cached clone); | |
2159 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2160 | * Case (2) means we look for a clone--if we have one, use it | |
2161 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2162 | * clone (for non-XSUBs) and have to create one if we don't | |
2163 | * already have one. | |
2164 | * Why look for a clone in case (2) when we could just grab | |
2165 | * ownership of cv straight away? Well, we could be recursing, | |
2166 | * i.e. we originally tried to enter cv while another thread | |
2167 | * owned it (hence we used a clone) but it has been freed up | |
2168 | * and we're now recursing into it. It may or may not be "better" | |
2169 | * to use the clone but at least CvDEPTH can be trusted. | |
2170 | */ | |
2171 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2172 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2173 | else { |
3de9ffa1 MB |
2174 | /* Case (2) or (3) */ |
2175 | SV **svp; | |
2176 | ||
11343788 | 2177 | /* |
3de9ffa1 MB |
2178 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2179 | * do the hv_fetch? We might find someone has pinched it | |
2180 | * when we look again, in which case we would be in case | |
2181 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2182 | * that we released the mutex more quickly make up for this? | |
2183 | */ | |
b099ddc0 | 2184 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2185 | { |
3de9ffa1 | 2186 | /* We already have a clone to use */ |
11343788 | 2187 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2188 | cv = *(CV**)svp; |
8b73bbec | 2189 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2190 | "entersub: %p already has clone %p:%s\n", |
2191 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2192 | CvOWNER(cv) = thr; |
2193 | SvREFCNT_inc(cv); | |
2194 | if (CvDEPTH(cv) == 0) | |
2195 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
2196 | } | |
11343788 | 2197 | else { |
3de9ffa1 MB |
2198 | /* (2) => grab ownership of cv. (3) => make clone */ |
2199 | if (!CvOWNER(cv)) { | |
2200 | CvOWNER(cv) = thr; | |
2201 | SvREFCNT_inc(cv); | |
11343788 | 2202 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
8b73bbec | 2203 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2204 | "entersub: %p grabbing %p:%s in stash %s\n", |
2205 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 MB |
2206 | HvNAME(CvSTASH(cv)) : "(none)")); |
2207 | } else { | |
2208 | /* Make a new clone. */ | |
2209 | CV *clonecv; | |
2210 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2211 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
8b73bbec | 2212 | DEBUG_S((PerlIO_printf(PerlIO_stderr(), |
1fd28e87 MB |
2213 | "entersub: %p cloning %p:%s\n", |
2214 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2215 | /* |
2216 | * We're creating a new clone so there's no race | |
2217 | * between the original MUTEX_UNLOCK and the | |
2218 | * SvREFCNT_inc since no one will be trying to undef | |
2219 | * it out from underneath us. At least, I don't think | |
2220 | * there's a race... | |
2221 | */ | |
2222 | clonecv = cv_clone(cv); | |
2223 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2224 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2225 | CvOWNER(clonecv) = thr; |
2226 | cv = clonecv; | |
11343788 | 2227 | SvREFCNT_inc(cv); |
11343788 | 2228 | } |
8b73bbec | 2229 | DEBUG_S(if (CvDEPTH(cv) != 0) |
3de9ffa1 MB |
2230 | PerlIO_printf(PerlIO_stderr(), "depth %ld != 0\n", |
2231 | CvDEPTH(cv));); | |
2232 | SAVEDESTRUCTOR(unset_cvowner, (void*) cv); | |
11343788 | 2233 | } |
3de9ffa1 | 2234 | } |
11343788 MB |
2235 | #endif /* USE_THREADS */ |
2236 | ||
a0d0e21e LW |
2237 | if (CvXSUB(cv)) { |
2238 | if (CvOLDSTYLE(cv)) { | |
ecfc5424 | 2239 | I32 (*fp3)_((int,int,int)); |
a0d0e21e LW |
2240 | dMARK; |
2241 | register I32 items = SP - MARK; | |
67955e0c | 2242 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2243 | while (SP > mark) { |
2244 | SP[1] = SP[0]; | |
2245 | SP--; | |
a0d0e21e | 2246 | } |
3280af22 | 2247 | PL_stack_sp = mark + 1; |
ecfc5424 AD |
2248 | fp3 = (I32(*)_((int,int,int)))CvXSUB(cv); |
2249 | items = (*fp3)(CvXSUBANY(cv).any_i32, | |
3280af22 | 2250 | MARK - PL_stack_base + 1, |
ecfc5424 | 2251 | items); |
3280af22 | 2252 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e LW |
2253 | } |
2254 | else { | |
748a9306 LW |
2255 | I32 markix = TOPMARK; |
2256 | ||
a0d0e21e | 2257 | PUTBACK; |
67955e0c | 2258 | |
2259 | if (!hasargs) { | |
2260 | /* Need to copy @_ to stack. Alternative may be to | |
2261 | * switch stack to @_, and copy return values | |
2262 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2263 | AV* av; |
2264 | I32 items; | |
2265 | #ifdef USE_THREADS | |
533c011a | 2266 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2267 | #else |
3280af22 | 2268 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2269 | #endif /* USE_THREADS */ |
93965878 | 2270 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c | 2271 | |
2272 | if (items) { | |
2273 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2274 | EXTEND(SP, items); |
2275 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2276 | SP += items; | |
67955e0c | 2277 | PUTBACK ; |
2278 | } | |
2279 | } | |
3280af22 | 2280 | if (PL_curcopdb) { /* We assume that the first |
67955e0c | 2281 | XSUB in &DB::sub is the |
2282 | called one. */ | |
3280af22 NIS |
2283 | SAVESPTR(PL_curcop); |
2284 | PL_curcop = PL_curcopdb; | |
2285 | PL_curcopdb = NULL; | |
67955e0c | 2286 | } |
2287 | /* Do we need to open block here? XXXX */ | |
1d583055 | 2288 | (void)(*CvXSUB(cv))(cv _PERL_OBJECT_THIS); |
748a9306 LW |
2289 | |
2290 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2291 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2292 | if (markix > PL_stack_sp - PL_stack_base) | |
2293 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2294 | else |
3280af22 NIS |
2295 | *(PL_stack_base + markix) = *PL_stack_sp; |
2296 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2297 | } |
a0d0e21e LW |
2298 | } |
2299 | LEAVE; | |
2300 | return NORMAL; | |
2301 | } | |
2302 | else { | |
2303 | dMARK; | |
2304 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2305 | AV* padlist = CvPADLIST(cv); |
2306 | SV** svp = AvARRAY(padlist); | |
533c011a | 2307 | push_return(PL_op->op_next); |
a0d0e21e LW |
2308 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2309 | PUSHSUB(cx); | |
2310 | CvDEPTH(cv)++; | |
6b35e009 GS |
2311 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2312 | * that eval'' ops within this sub know the correct lexical space. | |
2313 | * Owing the speed considerations, we choose to search for the cv | |
2314 | * in doeval() instead. | |
2315 | */ | |
a0d0e21e LW |
2316 | if (CvDEPTH(cv) < 2) |
2317 | (void)SvREFCNT_inc(cv); | |
2318 | else { /* save temporaries on recursion? */ | |
93965878 | 2319 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2320 | AV *av; |
2321 | AV *newpad = newAV(); | |
4aa0a1f7 | 2322 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2323 | I32 ix = AvFILLp((AV*)svp[1]); |
a0d0e21e | 2324 | svp = AvARRAY(svp[0]); |
748a9306 | 2325 | for ( ;ix > 0; ix--) { |
3280af22 | 2326 | if (svp[ix] != &PL_sv_undef) { |
748a9306 | 2327 | char *name = SvPVX(svp[ix]); |
5f05dabc | 2328 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2329 | || *name == '&') /* anonymous code? */ | |
2330 | { | |
2331 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2332 | } |
2333 | else { /* our own lexical */ | |
2334 | if (*name == '@') | |
2335 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2336 | else if (*name == '%') | |
2337 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2338 | else | |
2339 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2340 | SvPADMY_on(sv); | |
2341 | } | |
a0d0e21e LW |
2342 | } |
2343 | else { | |
748a9306 | 2344 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2345 | SvPADTMP_on(sv); |
2346 | } | |
2347 | } | |
2348 | av = newAV(); /* will be @_ */ | |
2349 | av_extend(av, 0); | |
2350 | av_store(newpad, 0, (SV*)av); | |
2351 | AvFLAGS(av) = AVf_REIFY; | |
2352 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2353 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2354 | svp = AvARRAY(padlist); |
2355 | } | |
2356 | } | |
6d4ff0d2 MB |
2357 | #ifdef USE_THREADS |
2358 | if (!hasargs) { | |
533c011a | 2359 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2360 | |
93965878 | 2361 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2362 | if (items) { |
2363 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2364 | EXTEND(SP, items); |
2365 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2366 | SP += items; | |
6d4ff0d2 MB |
2367 | PUTBACK ; |
2368 | } | |
2369 | } | |
2370 | #endif /* USE_THREADS */ | |
3280af22 NIS |
2371 | SAVESPTR(PL_curpad); |
2372 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); | |
6d4ff0d2 MB |
2373 | #ifndef USE_THREADS |
2374 | if (hasargs) | |
2375 | #endif /* USE_THREADS */ | |
2376 | { | |
2377 | AV* av; | |
a0d0e21e LW |
2378 | SV** ary; |
2379 | ||
77a005ab | 2380 | #if 0 |
8b73bbec | 2381 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2382 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2383 | #endif |
3280af22 | 2384 | av = (AV*)PL_curpad[0]; |
a0d0e21e LW |
2385 | if (AvREAL(av)) { |
2386 | av_clear(av); | |
2387 | AvREAL_off(av); | |
2388 | } | |
6d4ff0d2 | 2389 | #ifndef USE_THREADS |
3280af22 NIS |
2390 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2391 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 MB |
2392 | #endif /* USE_THREADS */ |
2393 | cx->blk_sub.argarray = av; | |
a0d0e21e LW |
2394 | ++MARK; |
2395 | ||
2396 | if (items > AvMAX(av) + 1) { | |
2397 | ary = AvALLOC(av); | |
2398 | if (AvARRAY(av) != ary) { | |
2399 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2400 | SvPVX(av) = (char*)ary; | |
2401 | } | |
2402 | if (items > AvMAX(av) + 1) { | |
2403 | AvMAX(av) = items - 1; | |
2404 | Renew(ary,items,SV*); | |
2405 | AvALLOC(av) = ary; | |
2406 | SvPVX(av) = (char*)ary; | |
2407 | } | |
2408 | } | |
2409 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2410 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2411 | |
2412 | while (items--) { | |
2413 | if (*MARK) | |
2414 | SvTEMP_off(*MARK); | |
2415 | MARK++; | |
2416 | } | |
2417 | } | |
4a925ff6 GS |
2418 | /* warning must come *after* we fully set up the context |
2419 | * stuff so that __WARN__ handlers can safely dounwind() | |
2420 | * if they want to | |
2421 | */ | |
2422 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2423 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2424 | sub_crush_depth(cv); | |
77a005ab | 2425 | #if 0 |
8b73bbec | 2426 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
0f15f207 | 2427 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2428 | #endif |
a0d0e21e LW |
2429 | RETURNOP(CvSTART(cv)); |
2430 | } | |
2431 | } | |
2432 | ||
44a8e56a | 2433 | void |
8ac85365 | 2434 | sub_crush_depth(CV *cv) |
44a8e56a | 2435 | { |
2436 | if (CvANON(cv)) | |
599cee73 | 2437 | warner(WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a | 2438 | else { |
2439 | SV* tmpstr = sv_newmortal(); | |
2440 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
599cee73 PM |
2441 | warner(WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
2442 | SvPVX(tmpstr)); | |
44a8e56a | 2443 | } |
2444 | } | |
2445 | ||
a0d0e21e LW |
2446 | PP(pp_aelem) |
2447 | { | |
4e35701f | 2448 | djSP; |
a0d0e21e | 2449 | SV** svp; |
748a9306 | 2450 | I32 elem = POPi; |
68dc0745 | 2451 | AV* av = (AV*)POPs; |
533c011a NIS |
2452 | U32 lval = PL_op->op_flags & OPf_MOD; |
2453 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2454 | SV *sv; |
a0d0e21e | 2455 | |
748a9306 | 2456 | if (elem > 0) |
3280af22 | 2457 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2458 | if (SvTYPE(av) != SVt_PVAV) |
2459 | RETPUSHUNDEF; | |
68dc0745 | 2460 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2461 | if (lval) { |
3280af22 | 2462 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 | 2463 | SV* lv; |
2464 | if (!defer) | |
22c35a8c | 2465 | DIE(PL_no_aelem, elem); |
68dc0745 | 2466 | lv = sv_newmortal(); |
2467 | sv_upgrade(lv, SVt_PVLV); | |
2468 | LvTYPE(lv) = 'y'; | |
2469 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2470 | LvTARG(lv) = SvREFCNT_inc(av); | |
2471 | LvTARGOFF(lv) = elem; | |
2472 | LvTARGLEN(lv) = 1; | |
2473 | PUSHs(lv); | |
2474 | RETURN; | |
2475 | } | |
533c011a | 2476 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2477 | save_aelem(av, elem, svp); |
533c011a NIS |
2478 | else if (PL_op->op_private & OPpDEREF) |
2479 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2480 | } |
3280af22 | 2481 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2482 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2483 | sv = sv_mortalcopy(sv); | |
2484 | PUSHs(sv); | |
a0d0e21e LW |
2485 | RETURN; |
2486 | } | |
2487 | ||
02a9e968 | 2488 | void |
8ac85365 | 2489 | vivify_ref(SV *sv, U32 to_what) |
02a9e968 CS |
2490 | { |
2491 | if (SvGMAGICAL(sv)) | |
2492 | mg_get(sv); | |
2493 | if (!SvOK(sv)) { | |
2494 | if (SvREADONLY(sv)) | |
22c35a8c | 2495 | croak(PL_no_modify); |
5f05dabc | 2496 | if (SvTYPE(sv) < SVt_RV) |
2497 | sv_upgrade(sv, SVt_RV); | |
2498 | else if (SvTYPE(sv) >= SVt_PV) { | |
2499 | (void)SvOOK_off(sv); | |
2500 | Safefree(SvPVX(sv)); | |
2501 | SvLEN(sv) = SvCUR(sv) = 0; | |
2502 | } | |
68dc0745 | 2503 | switch (to_what) { |
5f05dabc | 2504 | case OPpDEREF_SV: |
8c52afec | 2505 | SvRV(sv) = NEWSV(355,0); |
5f05dabc | 2506 | break; |
2507 | case OPpDEREF_AV: | |
2508 | SvRV(sv) = (SV*)newAV(); | |
2509 | break; | |
2510 | case OPpDEREF_HV: | |
2511 | SvRV(sv) = (SV*)newHV(); | |
2512 | break; | |
2513 | } | |
02a9e968 CS |
2514 | SvROK_on(sv); |
2515 | SvSETMAGIC(sv); | |
2516 | } | |
2517 | } | |
2518 | ||
a0d0e21e LW |
2519 | PP(pp_method) |
2520 | { | |
4e35701f | 2521 | djSP; |
a0d0e21e LW |
2522 | SV* sv; |
2523 | SV* ob; | |
2524 | GV* gv; | |
56304f61 CS |
2525 | HV* stash; |
2526 | char* name; | |
ac91690f CS |
2527 | char* packname; |
2528 | STRLEN packlen; | |
a0d0e21e | 2529 | |
fb73857a | 2530 | if (SvROK(TOPs)) { |
2531 | sv = SvRV(TOPs); | |
2532 | if (SvTYPE(sv) == SVt_PVCV) { | |
2533 | SETs(sv); | |
2534 | RETURN; | |
2535 | } | |
2536 | } | |
2537 | ||
2d8e6c8d | 2538 | name = SvPV(TOPs, packlen); |
3280af22 | 2539 | sv = *(PL_stack_base + TOPMARK + 1); |
a0d0e21e | 2540 | |
16d20bd9 AD |
2541 | if (SvGMAGICAL(sv)) |
2542 | mg_get(sv); | |
a0d0e21e | 2543 | if (SvROK(sv)) |
16d20bd9 | 2544 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2545 | else { |
2546 | GV* iogv; | |
a0d0e21e | 2547 | |
56304f61 | 2548 | packname = Nullch; |
a0d0e21e | 2549 | if (!SvOK(sv) || |
56304f61 | 2550 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2551 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2552 | !(ob=(SV*)GvIO(iogv))) | |
2553 | { | |
834a4ddd LW |
2554 | if (!packname || |
2555 | ((*(U8*)packname >= 0xc0 && IN_UTF8) | |
b86a2fa7 | 2556 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2557 | : !isIDFIRST(*packname) |
2558 | )) | |
2559 | { | |
72b5445b GS |
2560 | DIE("Can't call method \"%s\" %s", name, |
2561 | SvOK(sv)? "without a package or object reference" | |
2562 | : "on an undefined value"); | |
834a4ddd | 2563 | } |
56304f61 | 2564 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2565 | goto fetch; |
a0d0e21e | 2566 | } |
3280af22 | 2567 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2568 | } |
2569 | ||
ac91690f | 2570 | if (!ob || !SvOBJECT(ob)) |
a0d0e21e | 2571 | DIE("Can't call method \"%s\" on unblessed reference", name); |
a0d0e21e | 2572 | |
56304f61 | 2573 | stash = SvSTASH(ob); |
a0d0e21e | 2574 | |
ac91690f | 2575 | fetch: |
ac91690f | 2576 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2577 | if (!gv) { |
2578 | char* leaf = name; | |
2579 | char* sep = Nullch; | |
2580 | char* p; | |
2581 | ||
2582 | for (p = name; *p; p++) { | |
2583 | if (*p == '\'') | |
2584 | sep = p, leaf = p + 1; | |
2585 | else if (*p == ':' && *(p + 1) == ':') | |
2586 | sep = p, leaf = p + 2; | |
2587 | } | |
2588 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
3280af22 | 2589 | packname = HvNAME(sep ? PL_curcop->cop_stash : stash); |
56304f61 CS |
2590 | packlen = strlen(packname); |
2591 | } | |
2592 | else { | |
2593 | packname = name; | |
2594 | packlen = sep - name; | |
2595 | } | |
2596 | DIE("Can't locate object method \"%s\" via package \"%.*s\"", | |
2597 | leaf, (int)packlen, packname); | |
2598 | } | |
8ebc5c01 | 2599 | SETs(isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv); |
a0d0e21e LW |
2600 | RETURN; |
2601 | } | |
22239a37 | 2602 |