Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_hot.c |
2 | * | |
3818b22b | 3 | * Copyright (c) 1991-2000, 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 | |
a0ed51b3 | 25 | |
a0d0e21e LW |
26 | /* Hot code. */ |
27 | ||
11343788 | 28 | #ifdef USE_THREADS |
51371543 | 29 | static void unset_cvowner(pTHXo_ void *cvarg); |
11343788 MB |
30 | #endif /* USE_THREADS */ |
31 | ||
a0d0e21e LW |
32 | PP(pp_const) |
33 | { | |
4e35701f | 34 | djSP; |
1d7c1841 | 35 | XPUSHs(cSVOP_sv); |
a0d0e21e LW |
36 | RETURN; |
37 | } | |
38 | ||
39 | PP(pp_nextstate) | |
40 | { | |
533c011a | 41 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 42 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 43 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
44 | FREETMPS; |
45 | return NORMAL; | |
46 | } | |
47 | ||
48 | PP(pp_gvsv) | |
49 | { | |
4e35701f | 50 | djSP; |
924508f0 | 51 | EXTEND(SP,1); |
533c011a | 52 | if (PL_op->op_private & OPpLVAL_INTRO) |
1d7c1841 | 53 | PUSHs(save_scalar(cGVOP_gv)); |
a0d0e21e | 54 | else |
1d7c1841 | 55 | PUSHs(GvSV(cGVOP_gv)); |
a0d0e21e LW |
56 | RETURN; |
57 | } | |
58 | ||
59 | PP(pp_null) | |
60 | { | |
61 | return NORMAL; | |
62 | } | |
63 | ||
7399586d HS |
64 | PP(pp_setstate) |
65 | { | |
66 | PL_curcop = (COP*)PL_op; | |
67 | return NORMAL; | |
68 | } | |
69 | ||
a0d0e21e LW |
70 | PP(pp_pushmark) |
71 | { | |
3280af22 | 72 | PUSHMARK(PL_stack_sp); |
a0d0e21e LW |
73 | return NORMAL; |
74 | } | |
75 | ||
76 | PP(pp_stringify) | |
77 | { | |
4e35701f | 78 | djSP; dTARGET; |
a0d0e21e LW |
79 | STRLEN len; |
80 | char *s; | |
81 | s = SvPV(TOPs,len); | |
82 | sv_setpvn(TARG,s,len); | |
234a4bc6 GS |
83 | if (SvUTF8(TOPs) && !IN_BYTE) |
84 | SvUTF8_on(TARG); | |
a0d0e21e LW |
85 | SETTARG; |
86 | RETURN; | |
87 | } | |
88 | ||
89 | PP(pp_gv) | |
90 | { | |
4e35701f | 91 | djSP; |
1d7c1841 | 92 | XPUSHs((SV*)cGVOP_gv); |
a0d0e21e LW |
93 | RETURN; |
94 | } | |
95 | ||
96 | PP(pp_and) | |
97 | { | |
4e35701f | 98 | djSP; |
a0d0e21e LW |
99 | if (!SvTRUE(TOPs)) |
100 | RETURN; | |
101 | else { | |
102 | --SP; | |
103 | RETURNOP(cLOGOP->op_other); | |
104 | } | |
105 | } | |
106 | ||
107 | PP(pp_sassign) | |
108 | { | |
4e35701f | 109 | djSP; dPOPTOPssrl; |
748a9306 | 110 | |
533c011a | 111 | if (PL_op->op_private & OPpASSIGN_BACKWARDS) { |
a0d0e21e LW |
112 | SV *temp; |
113 | temp = left; left = right; right = temp; | |
114 | } | |
3280af22 | 115 | if (PL_tainting && PL_tainted && !SvTAINTED(left)) |
a0d0e21e | 116 | TAINT_NOT; |
54310121 | 117 | SvSetMagicSV(right, left); |
a0d0e21e LW |
118 | SETs(right); |
119 | RETURN; | |
120 | } | |
121 | ||
122 | PP(pp_cond_expr) | |
123 | { | |
4e35701f | 124 | djSP; |
a0d0e21e | 125 | if (SvTRUEx(POPs)) |
1a67a97c | 126 | RETURNOP(cLOGOP->op_other); |
a0d0e21e | 127 | else |
1a67a97c | 128 | RETURNOP(cLOGOP->op_next); |
a0d0e21e LW |
129 | } |
130 | ||
131 | PP(pp_unstack) | |
132 | { | |
133 | I32 oldsave; | |
134 | TAINT_NOT; /* Each statement is presumed innocent */ | |
3280af22 | 135 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e | 136 | FREETMPS; |
3280af22 | 137 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
138 | LEAVE_SCOPE(oldsave); |
139 | return NORMAL; | |
140 | } | |
141 | ||
a0d0e21e LW |
142 | PP(pp_concat) |
143 | { | |
4e35701f | 144 | djSP; dATARGET; tryAMAGICbin(concat,opASSIGN); |
748a9306 LW |
145 | { |
146 | dPOPTOPssrl; | |
a0d0e21e | 147 | STRLEN len; |
37931a30 | 148 | U8 *s; |
e84ff256 GS |
149 | bool left_utf = DO_UTF8(left); |
150 | bool right_utf = DO_UTF8(right); | |
69b47968 | 151 | |
37931a30 JH |
152 | if (left_utf != right_utf) { |
153 | if (TARG == right && !right_utf) { | |
154 | sv_utf8_upgrade(TARG); /* Now straight binary copy */ | |
155 | SvUTF8_on(TARG); | |
156 | } | |
157 | else { | |
158 | /* Set TARG to PV(left), then add right */ | |
159 | U8 *l, *c, *olds = NULL; | |
160 | STRLEN targlen; | |
15bb2692 | 161 | s = (U8*)SvPV(right,len); |
37931a30 | 162 | if (TARG == right) { |
15bb2692 HS |
163 | /* Take a copy since we're about to overwrite TARG */ |
164 | olds = s = (U8*)savepvn((char*)s, len); | |
37931a30 | 165 | } |
37931a30 JH |
166 | l = (U8*)SvPV(left, targlen); |
167 | if (TARG != left) | |
168 | sv_setpvn(TARG, (char*)l, targlen); | |
169 | if (!left_utf) | |
170 | sv_utf8_upgrade(TARG); | |
171 | /* Extend TARG to length of right (s) */ | |
172 | targlen = SvCUR(TARG) + len; | |
173 | if (!right_utf) { | |
174 | /* plus one for each hi-byte char if we have to upgrade */ | |
15bb2692 | 175 | for (c = s; c < s + len; c++) { |
37931a30 JH |
176 | if (*c & 0x80) |
177 | targlen++; | |
178 | } | |
179 | } | |
180 | SvGROW(TARG, targlen+1); | |
181 | /* And now copy, maybe upgrading right to UTF8 on the fly */ | |
15bb2692 | 182 | for (c = (U8*)SvEND(TARG); len--; s++) { |
37931a30 JH |
183 | if (*s & 0x80 && !right_utf) |
184 | c = uv_to_utf8(c, *s); | |
185 | else | |
186 | *c++ = *s; | |
187 | } | |
188 | SvCUR_set(TARG, targlen); | |
189 | *SvEND(TARG) = '\0'; | |
190 | SvUTF8_on(TARG); | |
191 | SETs(TARG); | |
192 | Safefree(olds); | |
193 | RETURN; | |
194 | } | |
195 | } | |
196 | ||
a0d0e21e | 197 | if (TARG != left) { |
37931a30 | 198 | s = (U8*)SvPV(left,len); |
69b47968 | 199 | if (TARG == right) { |
37931a30 | 200 | sv_insert(TARG, 0, 0, (char*)s, len); |
69b47968 GS |
201 | SETs(TARG); |
202 | RETURN; | |
203 | } | |
37931a30 | 204 | sv_setpvn(TARG, (char *)s, len); |
a0d0e21e | 205 | } |
37931a30 | 206 | else if (SvGMAGICAL(TARG)) |
c07a80fd | 207 | mg_get(TARG); |
37931a30 | 208 | else if (!SvOK(TARG) && SvTYPE(TARG) <= SVt_PVMG) |
748a9306 | 209 | sv_setpv(TARG, ""); /* Suppress warning. */ |
37931a30 | 210 | s = (U8*)SvPV(right,len); |
5bc28da9 NIS |
211 | if (SvOK(TARG)) { |
212 | #if defined(PERL_Y2KWARN) | |
e476b1b5 | 213 | if ((SvIOK(right) || SvNOK(right)) && ckWARN(WARN_Y2K)) { |
5bc28da9 NIS |
214 | STRLEN n; |
215 | char *s = SvPV(TARG,n); | |
216 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
217 | && (n == 2 || !isDIGIT(s[n-3]))) | |
218 | { | |
e476b1b5 | 219 | Perl_warner(aTHX_ WARN_Y2K, "Possible Y2K bug: %s", |
5bc28da9 NIS |
220 | "about to append an integer to '19'"); |
221 | } | |
222 | } | |
223 | #endif | |
37931a30 | 224 | sv_catpvn(TARG, (char *)s, len); |
5bc28da9 | 225 | } |
68dc0745 | 226 | else |
37931a30 JH |
227 | sv_setpvn(TARG, (char *)s, len); /* suppress warning */ |
228 | if (left_utf) | |
e84ff256 | 229 | SvUTF8_on(TARG); |
a0d0e21e LW |
230 | SETTARG; |
231 | RETURN; | |
748a9306 | 232 | } |
a0d0e21e LW |
233 | } |
234 | ||
235 | PP(pp_padsv) | |
236 | { | |
4e35701f | 237 | djSP; dTARGET; |
a0d0e21e | 238 | XPUSHs(TARG); |
533c011a NIS |
239 | if (PL_op->op_flags & OPf_MOD) { |
240 | if (PL_op->op_private & OPpLVAL_INTRO) | |
241 | SAVECLEARSV(PL_curpad[PL_op->op_targ]); | |
242 | else if (PL_op->op_private & OPpDEREF) { | |
8ec5e241 | 243 | PUTBACK; |
533c011a | 244 | vivify_ref(PL_curpad[PL_op->op_targ], PL_op->op_private & OPpDEREF); |
8ec5e241 NIS |
245 | SPAGAIN; |
246 | } | |
4633a7c4 | 247 | } |
a0d0e21e LW |
248 | RETURN; |
249 | } | |
250 | ||
251 | PP(pp_readline) | |
252 | { | |
f5284f61 | 253 | tryAMAGICunTARGET(iter, 0); |
3280af22 | 254 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
8efb3254 GS |
255 | if (SvTYPE(PL_last_in_gv) != SVt_PVGV) { |
256 | if (SvROK(PL_last_in_gv) && SvTYPE(SvRV(PL_last_in_gv)) == SVt_PVGV) | |
f5284f61 | 257 | PL_last_in_gv = (GV*)SvRV(PL_last_in_gv); |
8efb3254 | 258 | else { |
f5284f61 IZ |
259 | dSP; |
260 | XPUSHs((SV*)PL_last_in_gv); | |
261 | PUTBACK; | |
cea2e8a9 | 262 | pp_rv2gv(); |
f5284f61 | 263 | PL_last_in_gv = (GV*)(*PL_stack_sp--); |
f5284f61 IZ |
264 | } |
265 | } | |
a0d0e21e LW |
266 | return do_readline(); |
267 | } | |
268 | ||
269 | PP(pp_eq) | |
270 | { | |
4e35701f | 271 | djSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
272 | { |
273 | dPOPnv; | |
54310121 | 274 | SETs(boolSV(TOPn == value)); |
a0d0e21e LW |
275 | RETURN; |
276 | } | |
277 | } | |
278 | ||
279 | PP(pp_preinc) | |
280 | { | |
4e35701f | 281 | djSP; |
68dc0745 | 282 | if (SvREADONLY(TOPs) || SvTYPE(TOPs) > SVt_PVLV) |
d470f89e | 283 | DIE(aTHX_ PL_no_modify); |
25da4f38 | 284 | if (SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) && |
55497cff PP |
285 | SvIVX(TOPs) != IV_MAX) |
286 | { | |
748a9306 | 287 | ++SvIVX(TOPs); |
55497cff | 288 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
289 | } |
290 | else | |
291 | sv_inc(TOPs); | |
a0d0e21e LW |
292 | SvSETMAGIC(TOPs); |
293 | return NORMAL; | |
294 | } | |
295 | ||
296 | PP(pp_or) | |
297 | { | |
4e35701f | 298 | djSP; |
a0d0e21e LW |
299 | if (SvTRUE(TOPs)) |
300 | RETURN; | |
301 | else { | |
302 | --SP; | |
303 | RETURNOP(cLOGOP->op_other); | |
304 | } | |
305 | } | |
306 | ||
307 | PP(pp_add) | |
308 | { | |
4e35701f | 309 | djSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 310 | { |
7a4c00b4 | 311 | dPOPTOPnnrl_ul; |
a0d0e21e LW |
312 | SETn( left + right ); |
313 | RETURN; | |
314 | } | |
315 | } | |
316 | ||
317 | PP(pp_aelemfast) | |
318 | { | |
4e35701f | 319 | djSP; |
1d7c1841 | 320 | AV *av = GvAV(cGVOP_gv); |
533c011a NIS |
321 | U32 lval = PL_op->op_flags & OPf_MOD; |
322 | SV** svp = av_fetch(av, PL_op->op_private, lval); | |
3280af22 | 323 | SV *sv = (svp ? *svp : &PL_sv_undef); |
6ff81951 | 324 | EXTEND(SP, 1); |
be6c24e0 GS |
325 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
326 | sv = sv_mortalcopy(sv); | |
327 | PUSHs(sv); | |
a0d0e21e LW |
328 | RETURN; |
329 | } | |
330 | ||
331 | PP(pp_join) | |
332 | { | |
4e35701f | 333 | djSP; dMARK; dTARGET; |
a0d0e21e LW |
334 | MARK++; |
335 | do_join(TARG, *MARK, MARK, SP); | |
336 | SP = MARK; | |
337 | SETs(TARG); | |
338 | RETURN; | |
339 | } | |
340 | ||
341 | PP(pp_pushre) | |
342 | { | |
4e35701f | 343 | djSP; |
44a8e56a PP |
344 | #ifdef DEBUGGING |
345 | /* | |
346 | * We ass_u_me that LvTARGOFF() comes first, and that two STRLENs | |
347 | * will be enough to hold an OP*. | |
348 | */ | |
349 | SV* sv = sv_newmortal(); | |
350 | sv_upgrade(sv, SVt_PVLV); | |
351 | LvTYPE(sv) = '/'; | |
533c011a | 352 | Copy(&PL_op, &LvTARGOFF(sv), 1, OP*); |
44a8e56a PP |
353 | XPUSHs(sv); |
354 | #else | |
6b88bc9c | 355 | XPUSHs((SV*)PL_op); |
44a8e56a | 356 | #endif |
a0d0e21e LW |
357 | RETURN; |
358 | } | |
359 | ||
360 | /* Oversized hot code. */ | |
361 | ||
362 | PP(pp_print) | |
363 | { | |
4e35701f | 364 | djSP; dMARK; dORIGMARK; |
a0d0e21e LW |
365 | GV *gv; |
366 | IO *io; | |
760ac839 | 367 | register PerlIO *fp; |
236988e4 | 368 | MAGIC *mg; |
2d8e6c8d | 369 | STRLEN n_a; |
a0d0e21e | 370 | |
533c011a | 371 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
372 | gv = (GV*)*++MARK; |
373 | else | |
3280af22 | 374 | gv = PL_defoutgv; |
155aba94 | 375 | if ((mg = SvTIED_mg((SV*)gv, 'q'))) { |
68dc0745 | 376 | if (MARK == ORIGMARK) { |
a60c0954 NIS |
377 | /* If using default handle then we need to make space to |
378 | * pass object as 1st arg, so move other args up ... | |
379 | */ | |
4352c267 | 380 | MEXTEND(SP, 1); |
68dc0745 PP |
381 | ++MARK; |
382 | Move(MARK, MARK + 1, (SP - MARK) + 1, SV*); | |
383 | ++SP; | |
384 | } | |
385 | PUSHMARK(MARK - 1); | |
33c27489 | 386 | *MARK = SvTIED_obj((SV*)gv, mg); |
68dc0745 | 387 | PUTBACK; |
236988e4 | 388 | ENTER; |
864dbfa3 | 389 | call_method("PRINT", G_SCALAR); |
236988e4 PP |
390 | LEAVE; |
391 | SPAGAIN; | |
68dc0745 PP |
392 | MARK = ORIGMARK + 1; |
393 | *MARK = *SP; | |
394 | SP = MARK; | |
236988e4 PP |
395 | RETURN; |
396 | } | |
a0d0e21e | 397 | if (!(io = GvIO(gv))) { |
2dd78f96 JH |
398 | dTHR; |
399 | if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) | |
400 | report_evil_fh(gv, io, PL_op->op_type); | |
748a9306 | 401 | SETERRNO(EBADF,RMS$_IFI); |
a0d0e21e LW |
402 | goto just_say_no; |
403 | } | |
404 | else if (!(fp = IoOFP(io))) { | |
599cee73 | 405 | if (ckWARN2(WARN_CLOSED, WARN_IO)) { |
69282e91 | 406 | if (IoIFP(io)) { |
2dd78f96 JH |
407 | /* integrate with report_evil_fh()? */ |
408 | char *name = NULL; | |
409 | if (isGV(gv)) { | |
410 | SV* sv = sv_newmortal(); | |
411 | gv_efullname4(sv, gv, Nullch, FALSE); | |
412 | name = SvPV_nolen(sv); | |
413 | } | |
414 | if (name && *name) | |
415 | Perl_warner(aTHX_ WARN_IO, | |
416 | "Filehandle %s opened only for input", name); | |
417 | else | |
418 | Perl_warner(aTHX_ WARN_IO, | |
419 | "Filehandle opened only for input"); | |
69282e91 | 420 | } |
2dd78f96 | 421 | else if (ckWARN2(WARN_UNOPENED,WARN_CLOSED)) |
bc37a18f | 422 | report_evil_fh(gv, io, PL_op->op_type); |
a0d0e21e | 423 | } |
748a9306 | 424 | SETERRNO(EBADF,IoIFP(io)?RMS$_FAC:RMS$_IFI); |
a0d0e21e LW |
425 | goto just_say_no; |
426 | } | |
427 | else { | |
428 | MARK++; | |
3280af22 | 429 | if (PL_ofslen) { |
a0d0e21e LW |
430 | while (MARK <= SP) { |
431 | if (!do_print(*MARK, fp)) | |
432 | break; | |
433 | MARK++; | |
434 | if (MARK <= SP) { | |
3280af22 | 435 | if (PerlIO_write(fp, PL_ofs, PL_ofslen) == 0 || PerlIO_error(fp)) { |
a0d0e21e LW |
436 | MARK--; |
437 | break; | |
438 | } | |
439 | } | |
440 | } | |
441 | } | |
442 | else { | |
443 | while (MARK <= SP) { | |
444 | if (!do_print(*MARK, fp)) | |
445 | break; | |
446 | MARK++; | |
447 | } | |
448 | } | |
449 | if (MARK <= SP) | |
450 | goto just_say_no; | |
451 | else { | |
3280af22 NIS |
452 | if (PL_orslen) |
453 | if (PerlIO_write(fp, PL_ors, PL_orslen) == 0 || PerlIO_error(fp)) | |
a0d0e21e LW |
454 | goto just_say_no; |
455 | ||
456 | if (IoFLAGS(io) & IOf_FLUSH) | |
760ac839 | 457 | if (PerlIO_flush(fp) == EOF) |
a0d0e21e LW |
458 | goto just_say_no; |
459 | } | |
460 | } | |
461 | SP = ORIGMARK; | |
3280af22 | 462 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
463 | RETURN; |
464 | ||
465 | just_say_no: | |
466 | SP = ORIGMARK; | |
3280af22 | 467 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
468 | RETURN; |
469 | } | |
470 | ||
471 | PP(pp_rv2av) | |
472 | { | |
f5284f61 | 473 | djSP; dTOPss; |
a0d0e21e LW |
474 | AV *av; |
475 | ||
476 | if (SvROK(sv)) { | |
477 | wasref: | |
f5284f61 IZ |
478 | tryAMAGICunDEREF(to_av); |
479 | ||
a0d0e21e LW |
480 | av = (AV*)SvRV(sv); |
481 | if (SvTYPE(av) != SVt_PVAV) | |
cea2e8a9 | 482 | DIE(aTHX_ "Not an ARRAY reference"); |
533c011a | 483 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 484 | SETs((SV*)av); |
a0d0e21e LW |
485 | RETURN; |
486 | } | |
487 | } | |
488 | else { | |
489 | if (SvTYPE(sv) == SVt_PVAV) { | |
490 | av = (AV*)sv; | |
533c011a | 491 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 492 | SETs((SV*)av); |
a0d0e21e LW |
493 | RETURN; |
494 | } | |
495 | } | |
496 | else { | |
67955e0c PP |
497 | GV *gv; |
498 | ||
a0d0e21e | 499 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 500 | char *sym; |
c9d5ac95 | 501 | STRLEN len; |
748a9306 | 502 | |
a0d0e21e LW |
503 | if (SvGMAGICAL(sv)) { |
504 | mg_get(sv); | |
505 | if (SvROK(sv)) | |
506 | goto wasref; | |
507 | } | |
508 | if (!SvOK(sv)) { | |
533c011a NIS |
509 | if (PL_op->op_flags & OPf_REF || |
510 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 511 | DIE(aTHX_ PL_no_usym, "an ARRAY"); |
599cee73 | 512 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 513 | report_uninit(); |
f5284f61 | 514 | if (GIMME == G_ARRAY) { |
c2444246 | 515 | (void)POPs; |
4633a7c4 | 516 | RETURN; |
f5284f61 IZ |
517 | } |
518 | RETSETUNDEF; | |
a0d0e21e | 519 | } |
c9d5ac95 | 520 | sym = SvPV(sv,len); |
35cd451c GS |
521 | if ((PL_op->op_flags & OPf_SPECIAL) && |
522 | !(PL_op->op_flags & OPf_MOD)) | |
523 | { | |
524 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVAV); | |
c9d5ac95 GS |
525 | if (!gv |
526 | && (!is_gv_magical(sym,len,0) | |
527 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV)))) | |
528 | { | |
35cd451c | 529 | RETSETUNDEF; |
c9d5ac95 | 530 | } |
35cd451c GS |
531 | } |
532 | else { | |
533 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 534 | DIE(aTHX_ PL_no_symref, sym, "an ARRAY"); |
35cd451c GS |
535 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVAV); |
536 | } | |
537 | } | |
538 | else { | |
67955e0c | 539 | gv = (GV*)sv; |
a0d0e21e | 540 | } |
67955e0c | 541 | av = GvAVn(gv); |
533c011a | 542 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 543 | av = save_ary(gv); |
533c011a | 544 | if (PL_op->op_flags & OPf_REF) { |
f5284f61 | 545 | SETs((SV*)av); |
a0d0e21e LW |
546 | RETURN; |
547 | } | |
548 | } | |
549 | } | |
550 | ||
551 | if (GIMME == G_ARRAY) { | |
552 | I32 maxarg = AvFILL(av) + 1; | |
c2444246 | 553 | (void)POPs; /* XXXX May be optimized away? */ |
93965878 NIS |
554 | EXTEND(SP, maxarg); |
555 | if (SvRMAGICAL(av)) { | |
556 | U32 i; | |
557 | for (i=0; i < maxarg; i++) { | |
558 | SV **svp = av_fetch(av, i, FALSE); | |
3280af22 | 559 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
560 | } |
561 | } | |
562 | else { | |
563 | Copy(AvARRAY(av), SP+1, maxarg, SV*); | |
564 | } | |
a0d0e21e LW |
565 | SP += maxarg; |
566 | } | |
567 | else { | |
568 | dTARGET; | |
569 | I32 maxarg = AvFILL(av) + 1; | |
f5284f61 | 570 | SETi(maxarg); |
a0d0e21e LW |
571 | } |
572 | RETURN; | |
573 | } | |
574 | ||
575 | PP(pp_rv2hv) | |
576 | { | |
4e35701f | 577 | djSP; dTOPss; |
a0d0e21e LW |
578 | HV *hv; |
579 | ||
580 | if (SvROK(sv)) { | |
581 | wasref: | |
f5284f61 IZ |
582 | tryAMAGICunDEREF(to_hv); |
583 | ||
a0d0e21e | 584 | hv = (HV*)SvRV(sv); |
c750a3ec | 585 | if (SvTYPE(hv) != SVt_PVHV && SvTYPE(hv) != SVt_PVAV) |
cea2e8a9 | 586 | DIE(aTHX_ "Not a HASH reference"); |
533c011a | 587 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
588 | SETs((SV*)hv); |
589 | RETURN; | |
590 | } | |
591 | } | |
592 | else { | |
c750a3ec | 593 | if (SvTYPE(sv) == SVt_PVHV || SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e | 594 | hv = (HV*)sv; |
533c011a | 595 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
596 | SETs((SV*)hv); |
597 | RETURN; | |
598 | } | |
599 | } | |
600 | else { | |
67955e0c PP |
601 | GV *gv; |
602 | ||
a0d0e21e | 603 | if (SvTYPE(sv) != SVt_PVGV) { |
748a9306 | 604 | char *sym; |
c9d5ac95 | 605 | STRLEN len; |
748a9306 | 606 | |
a0d0e21e LW |
607 | if (SvGMAGICAL(sv)) { |
608 | mg_get(sv); | |
609 | if (SvROK(sv)) | |
610 | goto wasref; | |
611 | } | |
612 | if (!SvOK(sv)) { | |
533c011a NIS |
613 | if (PL_op->op_flags & OPf_REF || |
614 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 615 | DIE(aTHX_ PL_no_usym, "a HASH"); |
599cee73 | 616 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 617 | report_uninit(); |
4633a7c4 LW |
618 | if (GIMME == G_ARRAY) { |
619 | SP--; | |
620 | RETURN; | |
621 | } | |
a0d0e21e LW |
622 | RETSETUNDEF; |
623 | } | |
c9d5ac95 | 624 | sym = SvPV(sv,len); |
35cd451c GS |
625 | if ((PL_op->op_flags & OPf_SPECIAL) && |
626 | !(PL_op->op_flags & OPf_MOD)) | |
627 | { | |
628 | gv = (GV*)gv_fetchpv(sym, FALSE, SVt_PVHV); | |
c9d5ac95 GS |
629 | if (!gv |
630 | && (!is_gv_magical(sym,len,0) | |
631 | || !(gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV)))) | |
632 | { | |
35cd451c | 633 | RETSETUNDEF; |
c9d5ac95 | 634 | } |
35cd451c GS |
635 | } |
636 | else { | |
637 | if (PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 638 | DIE(aTHX_ PL_no_symref, sym, "a HASH"); |
35cd451c GS |
639 | gv = (GV*)gv_fetchpv(sym, TRUE, SVt_PVHV); |
640 | } | |
641 | } | |
642 | else { | |
67955e0c | 643 | gv = (GV*)sv; |
a0d0e21e | 644 | } |
67955e0c | 645 | hv = GvHVn(gv); |
533c011a | 646 | if (PL_op->op_private & OPpLVAL_INTRO) |
67955e0c | 647 | hv = save_hash(gv); |
533c011a | 648 | if (PL_op->op_flags & OPf_REF) { |
a0d0e21e LW |
649 | SETs((SV*)hv); |
650 | RETURN; | |
651 | } | |
652 | } | |
653 | } | |
654 | ||
655 | if (GIMME == G_ARRAY) { /* array wanted */ | |
3280af22 | 656 | *PL_stack_sp = (SV*)hv; |
cea2e8a9 | 657 | return do_kv(); |
a0d0e21e LW |
658 | } |
659 | else { | |
660 | dTARGET; | |
4b154ab5 GA |
661 | if (SvTYPE(hv) == SVt_PVAV) |
662 | hv = avhv_keys((AV*)hv); | |
b9c39e73 | 663 | if (HvFILL(hv)) |
57def98f JH |
664 | Perl_sv_setpvf(aTHX_ TARG, "%"IVdf"/%"IVdf, |
665 | (IV)HvFILL(hv), (IV)HvMAX(hv) + 1); | |
a0d0e21e LW |
666 | else |
667 | sv_setiv(TARG, 0); | |
c750a3ec | 668 | |
a0d0e21e LW |
669 | SETTARG; |
670 | RETURN; | |
671 | } | |
672 | } | |
673 | ||
10c8fecd GS |
674 | STATIC int |
675 | S_do_maybe_phash(pTHX_ AV *ary, SV **lelem, SV **firstlelem, SV **relem, | |
676 | SV **lastrelem) | |
677 | { | |
678 | OP *leftop; | |
10c8fecd GS |
679 | I32 i; |
680 | ||
681 | leftop = ((BINOP*)PL_op)->op_last; | |
682 | assert(leftop); | |
683 | assert(leftop->op_type == OP_NULL && leftop->op_targ == OP_LIST); | |
684 | leftop = ((LISTOP*)leftop)->op_first; | |
685 | assert(leftop); | |
686 | /* Skip PUSHMARK and each element already assigned to. */ | |
687 | for (i = lelem - firstlelem; i > 0; i--) { | |
688 | leftop = leftop->op_sibling; | |
689 | assert(leftop); | |
690 | } | |
691 | if (leftop->op_type != OP_RV2HV) | |
692 | return 0; | |
693 | ||
694 | /* pseudohash */ | |
695 | if (av_len(ary) > 0) | |
696 | av_fill(ary, 0); /* clear all but the fields hash */ | |
697 | if (lastrelem >= relem) { | |
698 | while (relem < lastrelem) { /* gobble up all the rest */ | |
699 | SV *tmpstr; | |
700 | assert(relem[0]); | |
701 | assert(relem[1]); | |
702 | /* Avoid a memory leak when avhv_store_ent dies. */ | |
703 | tmpstr = sv_newmortal(); | |
704 | sv_setsv(tmpstr,relem[1]); /* value */ | |
705 | relem[1] = tmpstr; | |
706 | if (avhv_store_ent(ary,relem[0],tmpstr,0)) | |
d16e9ed9 | 707 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
708 | if (SvMAGICAL(ary) != 0 && SvSMAGICAL(tmpstr)) |
709 | mg_set(tmpstr); | |
710 | relem += 2; | |
711 | TAINT_NOT; | |
712 | } | |
713 | } | |
714 | if (relem == lastrelem) | |
715 | return 1; | |
716 | return 2; | |
717 | } | |
718 | ||
719 | STATIC void | |
720 | S_do_oddball(pTHX_ HV *hash, SV **relem, SV **firstrelem) | |
721 | { | |
722 | if (*relem) { | |
723 | SV *tmpstr; | |
724 | if (ckWARN(WARN_MISC)) { | |
725 | if (relem == firstrelem && | |
726 | SvROK(*relem) && | |
727 | (SvTYPE(SvRV(*relem)) == SVt_PVAV || | |
728 | SvTYPE(SvRV(*relem)) == SVt_PVHV)) | |
729 | { | |
730 | Perl_warner(aTHX_ WARN_MISC, | |
731 | "Reference found where even-sized list expected"); | |
732 | } | |
733 | else | |
734 | Perl_warner(aTHX_ WARN_MISC, | |
735 | "Odd number of elements in hash assignment"); | |
736 | } | |
737 | if (SvTYPE(hash) == SVt_PVAV) { | |
738 | /* pseudohash */ | |
739 | tmpstr = sv_newmortal(); | |
740 | if (avhv_store_ent((AV*)hash,*relem,tmpstr,0)) | |
d16e9ed9 | 741 | (void)SvREFCNT_inc(tmpstr); |
10c8fecd GS |
742 | if (SvMAGICAL(hash) && SvSMAGICAL(tmpstr)) |
743 | mg_set(tmpstr); | |
744 | } | |
745 | else { | |
746 | HE *didstore; | |
747 | tmpstr = NEWSV(29,0); | |
748 | didstore = hv_store_ent(hash,*relem,tmpstr,0); | |
749 | if (SvMAGICAL(hash)) { | |
750 | if (SvSMAGICAL(tmpstr)) | |
751 | mg_set(tmpstr); | |
752 | if (!didstore) | |
753 | sv_2mortal(tmpstr); | |
754 | } | |
755 | } | |
756 | TAINT_NOT; | |
757 | } | |
758 | } | |
759 | ||
a0d0e21e LW |
760 | PP(pp_aassign) |
761 | { | |
4e35701f | 762 | djSP; |
3280af22 NIS |
763 | SV **lastlelem = PL_stack_sp; |
764 | SV **lastrelem = PL_stack_base + POPMARK; | |
765 | SV **firstrelem = PL_stack_base + POPMARK + 1; | |
a0d0e21e LW |
766 | SV **firstlelem = lastrelem + 1; |
767 | ||
768 | register SV **relem; | |
769 | register SV **lelem; | |
770 | ||
771 | register SV *sv; | |
772 | register AV *ary; | |
773 | ||
54310121 | 774 | I32 gimme; |
a0d0e21e LW |
775 | HV *hash; |
776 | I32 i; | |
777 | int magic; | |
778 | ||
3280af22 | 779 | PL_delaymagic = DM_DELAY; /* catch simultaneous items */ |
a0d0e21e LW |
780 | |
781 | /* If there's a common identifier on both sides we have to take | |
782 | * special care that assigning the identifier on the left doesn't | |
783 | * clobber a value on the right that's used later in the list. | |
784 | */ | |
10c8fecd | 785 | if (PL_op->op_private & (OPpASSIGN_COMMON)) { |
cc5e57d2 | 786 | EXTEND_MORTAL(lastrelem - firstrelem + 1); |
10c8fecd GS |
787 | for (relem = firstrelem; relem <= lastrelem; relem++) { |
788 | /*SUPPRESS 560*/ | |
155aba94 | 789 | if ((sv = *relem)) { |
a1f49e72 | 790 | TAINT_NOT; /* Each item is independent */ |
10c8fecd | 791 | *relem = sv_mortalcopy(sv); |
a1f49e72 | 792 | } |
10c8fecd | 793 | } |
a0d0e21e LW |
794 | } |
795 | ||
796 | relem = firstrelem; | |
797 | lelem = firstlelem; | |
798 | ary = Null(AV*); | |
799 | hash = Null(HV*); | |
10c8fecd | 800 | |
a0d0e21e | 801 | while (lelem <= lastlelem) { |
bbce6d69 | 802 | TAINT_NOT; /* Each item stands on its own, taintwise. */ |
a0d0e21e LW |
803 | sv = *lelem++; |
804 | switch (SvTYPE(sv)) { | |
805 | case SVt_PVAV: | |
806 | ary = (AV*)sv; | |
748a9306 | 807 | magic = SvMAGICAL(ary) != 0; |
10c8fecd GS |
808 | if (PL_op->op_private & OPpASSIGN_HASH) { |
809 | switch (do_maybe_phash(ary, lelem, firstlelem, relem, | |
810 | lastrelem)) | |
811 | { | |
812 | case 0: | |
813 | goto normal_array; | |
814 | case 1: | |
815 | do_oddball((HV*)ary, relem, firstrelem); | |
816 | } | |
817 | relem = lastrelem + 1; | |
818 | break; | |
819 | } | |
820 | normal_array: | |
a0d0e21e | 821 | av_clear(ary); |
7e42bd57 | 822 | av_extend(ary, lastrelem - relem); |
a0d0e21e LW |
823 | i = 0; |
824 | while (relem <= lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 825 | SV **didstore; |
a0d0e21e LW |
826 | sv = NEWSV(28,0); |
827 | assert(*relem); | |
828 | sv_setsv(sv,*relem); | |
829 | *(relem++) = sv; | |
5117ca91 GS |
830 | didstore = av_store(ary,i++,sv); |
831 | if (magic) { | |
fb73857a PP |
832 | if (SvSMAGICAL(sv)) |
833 | mg_set(sv); | |
5117ca91 | 834 | if (!didstore) |
8127e0e3 | 835 | sv_2mortal(sv); |
5117ca91 | 836 | } |
bbce6d69 | 837 | TAINT_NOT; |
a0d0e21e LW |
838 | } |
839 | break; | |
10c8fecd | 840 | case SVt_PVHV: { /* normal hash */ |
a0d0e21e LW |
841 | SV *tmpstr; |
842 | ||
843 | hash = (HV*)sv; | |
748a9306 | 844 | magic = SvMAGICAL(hash) != 0; |
a0d0e21e LW |
845 | hv_clear(hash); |
846 | ||
847 | while (relem < lastrelem) { /* gobble up all the rest */ | |
5117ca91 | 848 | HE *didstore; |
4633a7c4 | 849 | if (*relem) |
a0d0e21e | 850 | sv = *(relem++); |
4633a7c4 | 851 | else |
3280af22 | 852 | sv = &PL_sv_no, relem++; |
a0d0e21e LW |
853 | tmpstr = NEWSV(29,0); |
854 | if (*relem) | |
855 | sv_setsv(tmpstr,*relem); /* value */ | |
856 | *(relem++) = tmpstr; | |
5117ca91 GS |
857 | didstore = hv_store_ent(hash,sv,tmpstr,0); |
858 | if (magic) { | |
fb73857a PP |
859 | if (SvSMAGICAL(tmpstr)) |
860 | mg_set(tmpstr); | |
5117ca91 | 861 | if (!didstore) |
8127e0e3 | 862 | sv_2mortal(tmpstr); |
5117ca91 | 863 | } |
bbce6d69 | 864 | TAINT_NOT; |
8e07c86e | 865 | } |
6a0deba8 | 866 | if (relem == lastrelem) { |
10c8fecd | 867 | do_oddball(hash, relem, firstrelem); |
6a0deba8 | 868 | relem++; |
1930e939 | 869 | } |
a0d0e21e LW |
870 | } |
871 | break; | |
872 | default: | |
6fc92669 GS |
873 | if (SvIMMORTAL(sv)) { |
874 | if (relem <= lastrelem) | |
875 | relem++; | |
876 | break; | |
a0d0e21e LW |
877 | } |
878 | if (relem <= lastrelem) { | |
879 | sv_setsv(sv, *relem); | |
880 | *(relem++) = sv; | |
881 | } | |
882 | else | |
3280af22 | 883 | sv_setsv(sv, &PL_sv_undef); |
a0d0e21e LW |
884 | SvSETMAGIC(sv); |
885 | break; | |
886 | } | |
887 | } | |
3280af22 NIS |
888 | if (PL_delaymagic & ~DM_DELAY) { |
889 | if (PL_delaymagic & DM_UID) { | |
a0d0e21e | 890 | #ifdef HAS_SETRESUID |
b28d0864 | 891 | (void)setresuid(PL_uid,PL_euid,(Uid_t)-1); |
56febc5e AD |
892 | #else |
893 | # ifdef HAS_SETREUID | |
3280af22 | 894 | (void)setreuid(PL_uid,PL_euid); |
56febc5e AD |
895 | # else |
896 | # ifdef HAS_SETRUID | |
b28d0864 NIS |
897 | if ((PL_delaymagic & DM_UID) == DM_RUID) { |
898 | (void)setruid(PL_uid); | |
899 | PL_delaymagic &= ~DM_RUID; | |
a0d0e21e | 900 | } |
56febc5e AD |
901 | # endif /* HAS_SETRUID */ |
902 | # ifdef HAS_SETEUID | |
b28d0864 NIS |
903 | if ((PL_delaymagic & DM_UID) == DM_EUID) { |
904 | (void)seteuid(PL_uid); | |
905 | PL_delaymagic &= ~DM_EUID; | |
a0d0e21e | 906 | } |
56febc5e | 907 | # endif /* HAS_SETEUID */ |
b28d0864 NIS |
908 | if (PL_delaymagic & DM_UID) { |
909 | if (PL_uid != PL_euid) | |
cea2e8a9 | 910 | DIE(aTHX_ "No setreuid available"); |
b28d0864 | 911 | (void)PerlProc_setuid(PL_uid); |
a0d0e21e | 912 | } |
56febc5e AD |
913 | # endif /* HAS_SETREUID */ |
914 | #endif /* HAS_SETRESUID */ | |
d8eceb89 JH |
915 | PL_uid = PerlProc_getuid(); |
916 | PL_euid = PerlProc_geteuid(); | |
a0d0e21e | 917 | } |
3280af22 | 918 | if (PL_delaymagic & DM_GID) { |
a0d0e21e | 919 | #ifdef HAS_SETRESGID |
b28d0864 | 920 | (void)setresgid(PL_gid,PL_egid,(Gid_t)-1); |
56febc5e AD |
921 | #else |
922 | # ifdef HAS_SETREGID | |
3280af22 | 923 | (void)setregid(PL_gid,PL_egid); |
56febc5e AD |
924 | # else |
925 | # ifdef HAS_SETRGID | |
b28d0864 NIS |
926 | if ((PL_delaymagic & DM_GID) == DM_RGID) { |
927 | (void)setrgid(PL_gid); | |
928 | PL_delaymagic &= ~DM_RGID; | |
a0d0e21e | 929 | } |
56febc5e AD |
930 | # endif /* HAS_SETRGID */ |
931 | # ifdef HAS_SETEGID | |
b28d0864 NIS |
932 | if ((PL_delaymagic & DM_GID) == DM_EGID) { |
933 | (void)setegid(PL_gid); | |
934 | PL_delaymagic &= ~DM_EGID; | |
a0d0e21e | 935 | } |
56febc5e | 936 | # endif /* HAS_SETEGID */ |
b28d0864 NIS |
937 | if (PL_delaymagic & DM_GID) { |
938 | if (PL_gid != PL_egid) | |
cea2e8a9 | 939 | DIE(aTHX_ "No setregid available"); |
b28d0864 | 940 | (void)PerlProc_setgid(PL_gid); |
a0d0e21e | 941 | } |
56febc5e AD |
942 | # endif /* HAS_SETREGID */ |
943 | #endif /* HAS_SETRESGID */ | |
d8eceb89 JH |
944 | PL_gid = PerlProc_getgid(); |
945 | PL_egid = PerlProc_getegid(); | |
a0d0e21e | 946 | } |
3280af22 | 947 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
a0d0e21e | 948 | } |
3280af22 | 949 | PL_delaymagic = 0; |
54310121 PP |
950 | |
951 | gimme = GIMME_V; | |
952 | if (gimme == G_VOID) | |
953 | SP = firstrelem - 1; | |
954 | else if (gimme == G_SCALAR) { | |
955 | dTARGET; | |
956 | SP = firstrelem; | |
957 | SETi(lastrelem - firstrelem + 1); | |
958 | } | |
959 | else { | |
a0d0e21e LW |
960 | if (ary || hash) |
961 | SP = lastrelem; | |
962 | else | |
963 | SP = firstrelem + (lastlelem - firstlelem); | |
0c8c7a05 | 964 | lelem = firstlelem + (relem - firstrelem); |
5f05dabc | 965 | while (relem <= SP) |
3280af22 | 966 | *relem++ = (lelem <= lastlelem) ? *lelem++ : &PL_sv_undef; |
a0d0e21e | 967 | } |
54310121 | 968 | RETURN; |
a0d0e21e LW |
969 | } |
970 | ||
8782bef2 GB |
971 | PP(pp_qr) |
972 | { | |
973 | djSP; | |
974 | register PMOP *pm = cPMOP; | |
975 | SV *rv = sv_newmortal(); | |
57668c4d | 976 | SV *sv = newSVrv(rv, "Regexp"); |
8782bef2 GB |
977 | sv_magic(sv,(SV*)ReREFCNT_inc(pm->op_pmregexp),'r',0,0); |
978 | RETURNX(PUSHs(rv)); | |
979 | } | |
980 | ||
a0d0e21e LW |
981 | PP(pp_match) |
982 | { | |
4e35701f | 983 | djSP; dTARG; |
a0d0e21e LW |
984 | register PMOP *pm = cPMOP; |
985 | register char *t; | |
986 | register char *s; | |
987 | char *strend; | |
988 | I32 global; | |
f722798b IZ |
989 | I32 r_flags = REXEC_CHECKED; |
990 | char *truebase; /* Start of string */ | |
d9f97599 | 991 | register REGEXP *rx = pm->op_pmregexp; |
b3eb6a9b | 992 | bool rxtainted; |
a0d0e21e LW |
993 | I32 gimme = GIMME; |
994 | STRLEN len; | |
748a9306 | 995 | I32 minmatch = 0; |
3280af22 | 996 | I32 oldsave = PL_savestack_ix; |
f86702cc | 997 | I32 update_minmatch = 1; |
e60df1fa | 998 | I32 had_zerolen = 0; |
a0d0e21e | 999 | |
533c011a | 1000 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1001 | TARG = POPs; |
1002 | else { | |
54b9620d | 1003 | TARG = DEFSV; |
a0d0e21e LW |
1004 | EXTEND(SP,1); |
1005 | } | |
c277df42 | 1006 | PUTBACK; /* EVAL blocks need stack_sp. */ |
a0d0e21e LW |
1007 | s = SvPV(TARG, len); |
1008 | strend = s + len; | |
1009 | if (!s) | |
cea2e8a9 | 1010 | DIE(aTHX_ "panic: do_match"); |
b3eb6a9b | 1011 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 | 1012 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
9212bbba | 1013 | TAINT_NOT; |
a0d0e21e | 1014 | |
48c036b1 | 1015 | if (pm->op_pmdynflags & PMdf_USED) { |
c277df42 | 1016 | failure: |
a0d0e21e LW |
1017 | if (gimme == G_ARRAY) |
1018 | RETURN; | |
1019 | RETPUSHNO; | |
1020 | } | |
1021 | ||
3280af22 NIS |
1022 | if (!rx->prelen && PL_curpm) { |
1023 | pm = PL_curpm; | |
d9f97599 | 1024 | rx = pm->op_pmregexp; |
a0d0e21e | 1025 | } |
d9f97599 | 1026 | if (rx->minlen > len) goto failure; |
c277df42 | 1027 | |
a0d0e21e | 1028 | truebase = t = s; |
ad94a511 IZ |
1029 | |
1030 | /* XXXX What part of this is needed with true \G-support? */ | |
155aba94 | 1031 | if ((global = pm->op_pmflags & PMf_GLOBAL)) { |
cf93c79d | 1032 | rx->startp[0] = -1; |
a0d0e21e LW |
1033 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1034 | MAGIC* mg = mg_find(TARG, 'g'); | |
565764a8 | 1035 | if (mg && mg->mg_len >= 0) { |
b7a35066 | 1036 | if (!(rx->reganch & ROPT_GPOS_SEEN)) |
cf93c79d | 1037 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e HS |
1038 | else if (rx->reganch & ROPT_ANCH_GPOS) { |
1039 | r_flags |= REXEC_IGNOREPOS; | |
cf93c79d | 1040 | rx->endp[0] = rx->startp[0] = mg->mg_len; |
0ef3e39e | 1041 | } |
748a9306 | 1042 | minmatch = (mg->mg_flags & MGf_MINMATCH); |
f86702cc | 1043 | update_minmatch = 0; |
748a9306 | 1044 | } |
a0d0e21e LW |
1045 | } |
1046 | } | |
0ef3e39e HS |
1047 | if ((gimme != G_ARRAY && !global && rx->nparens) |
1048 | || SvTEMP(TARG) || PL_sawampersand) | |
1049 | r_flags |= REXEC_COPY_STR; | |
f722798b | 1050 | if (SvSCREAM(TARG)) |
22e551b9 IZ |
1051 | r_flags |= REXEC_SCREAM; |
1052 | ||
a0d0e21e | 1053 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1054 | SAVEINT(PL_multiline); |
1055 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1056 | } |
1057 | ||
1058 | play_it_again: | |
cf93c79d IZ |
1059 | if (global && rx->startp[0] != -1) { |
1060 | t = s = rx->endp[0] + truebase; | |
d9f97599 | 1061 | if ((s + rx->minlen) > strend) |
a0d0e21e | 1062 | goto nope; |
f86702cc | 1063 | if (update_minmatch++) |
e60df1fa | 1064 | minmatch = had_zerolen; |
a0d0e21e | 1065 | } |
f722798b IZ |
1066 | if (rx->reganch & RE_USE_INTUIT) { |
1067 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1068 | ||
1069 | if (!s) | |
1070 | goto nope; | |
1071 | if ( (rx->reganch & ROPT_CHECK_ALL) | |
1072 | && !PL_sawampersand | |
1073 | && ((rx->reganch & ROPT_NOSCAN) | |
1074 | || !((rx->reganch & RE_INTUIT_TAIL) | |
05b4157f GS |
1075 | && (r_flags & REXEC_SCREAM))) |
1076 | && !SvROK(TARG)) /* Cannot trust since INTUIT cannot guess ^ */ | |
f722798b | 1077 | goto yup; |
a0d0e21e | 1078 | } |
cea2e8a9 | 1079 | if (CALLREGEXEC(aTHX_ rx, s, strend, truebase, minmatch, TARG, NULL, r_flags)) |
bbce6d69 | 1080 | { |
3280af22 | 1081 | PL_curpm = pm; |
a0d0e21e | 1082 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1083 | pm->op_pmdynflags |= PMdf_USED; |
a0d0e21e LW |
1084 | goto gotcha; |
1085 | } | |
1086 | else | |
1087 | goto ret_no; | |
1088 | /*NOTREACHED*/ | |
1089 | ||
1090 | gotcha: | |
72311751 GS |
1091 | if (rxtainted) |
1092 | RX_MATCH_TAINTED_on(rx); | |
1093 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
a0d0e21e LW |
1094 | if (gimme == G_ARRAY) { |
1095 | I32 iters, i, len; | |
1096 | ||
d9f97599 | 1097 | iters = rx->nparens; |
a0d0e21e LW |
1098 | if (global && !iters) |
1099 | i = 1; | |
1100 | else | |
1101 | i = 0; | |
c277df42 | 1102 | SPAGAIN; /* EVAL blocks could move the stack. */ |
a0d0e21e | 1103 | EXTEND(SP, iters + i); |
bbce6d69 | 1104 | EXTEND_MORTAL(iters + i); |
a0d0e21e LW |
1105 | for (i = !i; i <= iters; i++) { |
1106 | PUSHs(sv_newmortal()); | |
1107 | /*SUPPRESS 560*/ | |
cf93c79d IZ |
1108 | if ((rx->startp[i] != -1) && rx->endp[i] != -1 ) { |
1109 | len = rx->endp[i] - rx->startp[i]; | |
1110 | s = rx->startp[i] + truebase; | |
a0d0e21e | 1111 | sv_setpvn(*SP, s, len); |
a197cbdd GS |
1112 | if ((pm->op_pmdynflags & PMdf_UTF8) && !IN_BYTE) { |
1113 | SvUTF8_on(*SP); | |
1114 | sv_utf8_downgrade(*SP, TRUE); | |
1115 | } | |
a0d0e21e LW |
1116 | } |
1117 | } | |
1118 | if (global) { | |
cf93c79d IZ |
1119 | had_zerolen = (rx->startp[0] != -1 |
1120 | && rx->startp[0] == rx->endp[0]); | |
c277df42 | 1121 | PUTBACK; /* EVAL blocks may use stack */ |
cf93c79d | 1122 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1123 | goto play_it_again; |
1124 | } | |
f7e33566 | 1125 | else if (!iters) |
bde848c5 | 1126 | XPUSHs(&PL_sv_yes); |
4633a7c4 | 1127 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1128 | RETURN; |
1129 | } | |
1130 | else { | |
1131 | if (global) { | |
1132 | MAGIC* mg = 0; | |
1133 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) | |
1134 | mg = mg_find(TARG, 'g'); | |
1135 | if (!mg) { | |
1136 | sv_magic(TARG, (SV*)0, 'g', Nullch, 0); | |
1137 | mg = mg_find(TARG, 'g'); | |
1138 | } | |
cf93c79d IZ |
1139 | if (rx->startp[0] != -1) { |
1140 | mg->mg_len = rx->endp[0]; | |
d9f97599 | 1141 | if (rx->startp[0] == rx->endp[0]) |
748a9306 LW |
1142 | mg->mg_flags |= MGf_MINMATCH; |
1143 | else | |
1144 | mg->mg_flags &= ~MGf_MINMATCH; | |
1145 | } | |
a0d0e21e | 1146 | } |
4633a7c4 | 1147 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1148 | RETPUSHYES; |
1149 | } | |
1150 | ||
f722798b | 1151 | yup: /* Confirmed by INTUIT */ |
72311751 GS |
1152 | if (rxtainted) |
1153 | RX_MATCH_TAINTED_on(rx); | |
1154 | TAINT_IF(RX_MATCH_TAINTED(rx)); | |
3280af22 | 1155 | PL_curpm = pm; |
a0d0e21e | 1156 | if (pm->op_pmflags & PMf_ONCE) |
48c036b1 | 1157 | pm->op_pmdynflags |= PMdf_USED; |
cf93c79d IZ |
1158 | if (RX_MATCH_COPIED(rx)) |
1159 | Safefree(rx->subbeg); | |
1160 | RX_MATCH_COPIED_off(rx); | |
1161 | rx->subbeg = Nullch; | |
a0d0e21e | 1162 | if (global) { |
d9f97599 | 1163 | rx->subbeg = truebase; |
cf93c79d | 1164 | rx->startp[0] = s - truebase; |
f722798b | 1165 | rx->endp[0] = s - truebase + rx->minlen; |
cf93c79d | 1166 | rx->sublen = strend - truebase; |
a0d0e21e | 1167 | goto gotcha; |
cf93c79d | 1168 | } |
3280af22 | 1169 | if (PL_sawampersand) { |
cf93c79d | 1170 | I32 off; |
a0d0e21e | 1171 | |
cf93c79d IZ |
1172 | rx->subbeg = savepvn(t, strend - t); |
1173 | rx->sublen = strend - t; | |
1174 | RX_MATCH_COPIED_on(rx); | |
1175 | off = rx->startp[0] = s - t; | |
f722798b | 1176 | rx->endp[0] = off + rx->minlen; |
cf93c79d IZ |
1177 | } |
1178 | else { /* startp/endp are used by @- @+. */ | |
1179 | rx->startp[0] = s - truebase; | |
f722798b | 1180 | rx->endp[0] = s - truebase + rx->minlen; |
a0d0e21e | 1181 | } |
fc19f8d0 | 1182 | rx->nparens = rx->lastparen = 0; /* used by @- and @+ */ |
4633a7c4 | 1183 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1184 | RETPUSHYES; |
1185 | ||
1186 | nope: | |
a0d0e21e | 1187 | ret_no: |
c90c0ff4 | 1188 | if (global && !(pm->op_pmflags & PMf_CONTINUE)) { |
a0d0e21e LW |
1189 | if (SvTYPE(TARG) >= SVt_PVMG && SvMAGIC(TARG)) { |
1190 | MAGIC* mg = mg_find(TARG, 'g'); | |
1191 | if (mg) | |
565764a8 | 1192 | mg->mg_len = -1; |
a0d0e21e LW |
1193 | } |
1194 | } | |
4633a7c4 | 1195 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
1196 | if (gimme == G_ARRAY) |
1197 | RETURN; | |
1198 | RETPUSHNO; | |
1199 | } | |
1200 | ||
1201 | OP * | |
864dbfa3 | 1202 | Perl_do_readline(pTHX) |
a0d0e21e LW |
1203 | { |
1204 | dSP; dTARGETSTACKED; | |
1205 | register SV *sv; | |
1206 | STRLEN tmplen = 0; | |
1207 | STRLEN offset; | |
760ac839 | 1208 | PerlIO *fp; |
3280af22 | 1209 | register IO *io = GvIO(PL_last_in_gv); |
533c011a | 1210 | register I32 type = PL_op->op_type; |
54310121 | 1211 | I32 gimme = GIMME_V; |
e79b0511 | 1212 | MAGIC *mg; |
a0d0e21e | 1213 | |
155aba94 | 1214 | if ((mg = SvTIED_mg((SV*)PL_last_in_gv, 'q'))) { |
e79b0511 | 1215 | PUSHMARK(SP); |
33c27489 | 1216 | XPUSHs(SvTIED_obj((SV*)PL_last_in_gv, mg)); |
e79b0511 PP |
1217 | PUTBACK; |
1218 | ENTER; | |
864dbfa3 | 1219 | call_method("READLINE", gimme); |
e79b0511 PP |
1220 | LEAVE; |
1221 | SPAGAIN; | |
54310121 PP |
1222 | if (gimme == G_SCALAR) |
1223 | SvSetMagicSV_nosteal(TARG, TOPs); | |
e79b0511 PP |
1224 | RETURN; |
1225 | } | |
a0d0e21e LW |
1226 | fp = Nullfp; |
1227 | if (io) { | |
1228 | fp = IoIFP(io); | |
1229 | if (!fp) { | |
1230 | if (IoFLAGS(io) & IOf_ARGV) { | |
1231 | if (IoFLAGS(io) & IOf_START) { | |
a0d0e21e | 1232 | IoLINES(io) = 0; |
3280af22 | 1233 | if (av_len(GvAVn(PL_last_in_gv)) < 0) { |
1d7c1841 | 1234 | IoFLAGS(io) &= ~IOf_START; |
9d116dd7 | 1235 | do_open(PL_last_in_gv,"-",1,FALSE,O_RDONLY,0,Nullfp); |
3280af22 NIS |
1236 | sv_setpvn(GvSV(PL_last_in_gv), "-", 1); |
1237 | SvSETMAGIC(GvSV(PL_last_in_gv)); | |
a2008d6d GS |
1238 | fp = IoIFP(io); |
1239 | goto have_fp; | |
a0d0e21e LW |
1240 | } |
1241 | } | |
3280af22 | 1242 | fp = nextargv(PL_last_in_gv); |
a0d0e21e | 1243 | if (!fp) { /* Note: fp != IoIFP(io) */ |
3280af22 | 1244 | (void)do_close(PL_last_in_gv, FALSE); /* now it does*/ |
a0d0e21e LW |
1245 | } |
1246 | } | |
1247 | else if (type == OP_GLOB) { | |
1248 | SV *tmpcmd = NEWSV(55, 0); | |
1249 | SV *tmpglob = POPs; | |
1250 | ENTER; | |
1251 | SAVEFREESV(tmpcmd); | |
1252 | #ifdef VMS /* expand the wildcards right here, rather than opening a pipe, */ | |
1253 | /* since spawning off a process is a real performance hit */ | |
1254 | { | |
1255 | #include <descrip.h> | |
1256 | #include <lib$routines.h> | |
1257 | #include <nam.h> | |
1258 | #include <rmsdef.h> | |
1259 | char rslt[NAM$C_MAXRSS+1+sizeof(unsigned short int)] = {'\0','\0'}; | |
1260 | char vmsspec[NAM$C_MAXRSS+1]; | |
1261 | char *rstr = rslt + sizeof(unsigned short int), *begin, *end, *cp; | |
1262 | char tmpfnam[L_tmpnam] = "SYS$SCRATCH:"; | |
1263 | $DESCRIPTOR(dfltdsc,"SYS$DISK:[]*.*;"); | |
760ac839 | 1264 | PerlIO *tmpfp; |
a0d0e21e LW |
1265 | STRLEN i; |
1266 | struct dsc$descriptor_s wilddsc | |
1267 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
1268 | struct dsc$descriptor_vs rsdsc | |
1269 | = {sizeof rslt, DSC$K_DTYPE_VT, DSC$K_CLASS_VS, rslt}; | |
1270 | unsigned long int cxt = 0, sts = 0, ok = 1, hasdir = 0, hasver = 0, isunix = 0; | |
1271 | ||
1272 | /* We could find out if there's an explicit dev/dir or version | |
1273 | by peeking into lib$find_file's internal context at | |
1274 | ((struct NAM *)((struct FAB *)cxt)->fab$l_nam)->nam$l_fnb | |
1275 | but that's unsupported, so I don't want to do it now and | |
1276 | have it bite someone in the future. */ | |
6ad3d225 | 1277 | strcat(tmpfnam,PerlLIO_tmpnam(NULL)); |
a0d0e21e LW |
1278 | cp = SvPV(tmpglob,i); |
1279 | for (; i; i--) { | |
1280 | if (cp[i] == ';') hasver = 1; | |
1281 | if (cp[i] == '.') { | |
1282 | if (sts) hasver = 1; | |
1283 | else sts = 1; | |
1284 | } | |
1285 | if (cp[i] == '/') { | |
1286 | hasdir = isunix = 1; | |
1287 | break; | |
748a9306 | 1288 | } |
a0d0e21e LW |
1289 | if (cp[i] == ']' || cp[i] == '>' || cp[i] == ':') { |
1290 | hasdir = 1; | |
1291 | break; | |
1292 | } | |
1293 | } | |
760ac839 | 1294 | if ((tmpfp = PerlIO_open(tmpfnam,"w+","fop=dlt")) != NULL) { |
09b7f37c | 1295 | Stat_t st; |
c6ed36e1 | 1296 | if (!PerlLIO_stat(SvPVX(tmpglob),&st) && S_ISDIR(st.st_mode)) |
09b7f37c CB |
1297 | ok = ((wilddsc.dsc$a_pointer = tovmspath(SvPVX(tmpglob),vmsspec)) != NULL); |
1298 | else ok = ((wilddsc.dsc$a_pointer = tovmsspec(SvPVX(tmpglob),vmsspec)) != NULL); | |
a0d0e21e LW |
1299 | if (ok) wilddsc.dsc$w_length = (unsigned short int) strlen(wilddsc.dsc$a_pointer); |
1300 | while (ok && ((sts = lib$find_file(&wilddsc,&rsdsc,&cxt, | |
1301 | &dfltdsc,NULL,NULL,NULL))&1)) { | |
1302 | end = rstr + (unsigned long int) *rslt; | |
1303 | if (!hasver) while (*end != ';') end--; | |
1304 | *(end++) = '\n'; *end = '\0'; | |
1305 | for (cp = rstr; *cp; cp++) *cp = _tolower(*cp); | |
1306 | if (hasdir) { | |
f86702cc | 1307 | if (isunix) trim_unixpath(rstr,SvPVX(tmpglob),1); |
a0d0e21e LW |
1308 | begin = rstr; |
1309 | } | |
1310 | else { | |
1311 | begin = end; | |
1312 | while (*(--begin) != ']' && *begin != '>') ; | |
1313 | ++begin; | |
1314 | } | |
760ac839 | 1315 | ok = (PerlIO_puts(tmpfp,begin) != EOF); |
a0d0e21e LW |
1316 | } |
1317 | if (cxt) (void)lib$find_file_end(&cxt); | |
748a9306 LW |
1318 | if (ok && sts != RMS$_NMF && |
1319 | sts != RMS$_DNF && sts != RMS$_FNF) ok = 0; | |
a0d0e21e | 1320 | if (!ok) { |
c07a80fd PP |
1321 | if (!(sts & 1)) { |
1322 | SETERRNO((sts == RMS$_SYN ? EINVAL : EVMSERR),sts); | |
1323 | } | |
760ac839 | 1324 | PerlIO_close(tmpfp); |
a0d0e21e LW |
1325 | fp = NULL; |
1326 | } | |
1327 | else { | |
760ac839 | 1328 | PerlIO_rewind(tmpfp); |
a0d0e21e LW |
1329 | IoTYPE(io) = '<'; |
1330 | IoIFP(io) = fp = tmpfp; | |
1e422769 | 1331 | IoFLAGS(io) &= ~IOf_UNTAINT; /* maybe redundant */ |
a0d0e21e LW |
1332 | } |
1333 | } | |
1334 | } | |
1335 | #else /* !VMS */ | |
1d7c1841 GS |
1336 | #ifdef MACOS_TRADITIONAL |
1337 | sv_setpv(tmpcmd, "glob "); | |
1338 | sv_catsv(tmpcmd, tmpglob); | |
1339 | sv_catpv(tmpcmd, " |"); | |
1340 | #else | |
a0d0e21e | 1341 | #ifdef DOSISH |
67955e0c PP |
1342 | #ifdef OS2 |
1343 | sv_setpv(tmpcmd, "for a in "); | |
1344 | sv_catsv(tmpcmd, tmpglob); | |
1345 | sv_catpv(tmpcmd, "; do echo \"$a\\0\\c\"; done |"); | |
1346 | #else | |
39e571d4 ML |
1347 | #ifdef DJGPP |
1348 | sv_setpv(tmpcmd, "/dev/dosglob/"); /* File System Extension */ | |
1349 | sv_catsv(tmpcmd, tmpglob); | |
1350 | #else | |
a0d0e21e LW |
1351 | sv_setpv(tmpcmd, "perlglob "); |
1352 | sv_catsv(tmpcmd, tmpglob); | |
1353 | sv_catpv(tmpcmd, " |"); | |
39e571d4 | 1354 | #endif /* !DJGPP */ |
67955e0c PP |
1355 | #endif /* !OS2 */ |
1356 | #else /* !DOSISH */ | |
1357 | #if defined(CSH) | |
3280af22 | 1358 | sv_setpvn(tmpcmd, PL_cshname, PL_cshlen); |
a0d0e21e LW |
1359 | sv_catpv(tmpcmd, " -cf 'set nonomatch; glob "); |
1360 | sv_catsv(tmpcmd, tmpglob); | |
16d20bd9 | 1361 | sv_catpv(tmpcmd, "' 2>/dev/null |"); |
a0d0e21e LW |
1362 | #else |
1363 | sv_setpv(tmpcmd, "echo "); | |
1364 | sv_catsv(tmpcmd, tmpglob); | |
1365 | #if 'z' - 'a' == 25 | |
1366 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\012\\012\\012\\012'|"); | |
1367 | #else | |
1368 | sv_catpv(tmpcmd, "|tr -s ' \t\f\r' '\\n\\n\\n\\n'|"); | |
1369 | #endif | |
1370 | #endif /* !CSH */ | |
67955e0c | 1371 | #endif /* !DOSISH */ |
1d7c1841 | 1372 | #endif /* MACOS_TRADITIONAL */ |
3280af22 | 1373 | (void)do_open(PL_last_in_gv, SvPVX(tmpcmd), SvCUR(tmpcmd), |
9d116dd7 | 1374 | FALSE, O_RDONLY, 0, Nullfp); |
a0d0e21e LW |
1375 | fp = IoIFP(io); |
1376 | #endif /* !VMS */ | |
1377 | LEAVE; | |
1378 | } | |
1379 | } | |
1380 | else if (type == OP_GLOB) | |
1381 | SP--; | |
af8c498a GS |
1382 | else if (ckWARN(WARN_IO) /* stdout/stderr or other write fh */ |
1383 | && (IoTYPE(io) == '>' || fp == PerlIO_stdout() | |
1384 | || fp == PerlIO_stderr())) | |
1385 | { | |
2dd78f96 JH |
1386 | /* integrate with report_evil_fh()? */ |
1387 | char *name = NULL; | |
1388 | if (isGV(PL_last_in_gv)) { /* can this ever fail? */ | |
1389 | SV* sv = sv_newmortal(); | |
1390 | gv_efullname4(sv, PL_last_in_gv, Nullch, FALSE); | |
1391 | name = SvPV_nolen(sv); | |
1392 | } | |
1393 | if (name && *name) | |
1394 | Perl_warner(aTHX_ WARN_IO, | |
1395 | "Filehandle %s opened only for output", name); | |
1396 | else | |
1397 | Perl_warner(aTHX_ WARN_IO, | |
1398 | "Filehandle opened only for output"); | |
af8c498a | 1399 | } |
a0d0e21e LW |
1400 | } |
1401 | if (!fp) { | |
e476b1b5 | 1402 | if (ckWARN2(WARN_GLOB,WARN_CLOSED) && io && !(IoFLAGS(io) & IOf_START)) { |
3f4520fe | 1403 | if (type == OP_GLOB) |
e476b1b5 | 1404 | Perl_warner(aTHX_ WARN_GLOB, |
af8c498a GS |
1405 | "glob failed (can't start child: %s)", |
1406 | Strerror(errno)); | |
69282e91 | 1407 | else |
bc37a18f | 1408 | report_evil_fh(PL_last_in_gv, io, PL_op->op_type); |
3f4520fe | 1409 | } |
54310121 | 1410 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1411 | (void)SvOK_off(TARG); |
1412 | PUSHTARG; | |
1413 | } | |
1414 | RETURN; | |
1415 | } | |
a2008d6d | 1416 | have_fp: |
54310121 | 1417 | if (gimme == G_SCALAR) { |
a0d0e21e | 1418 | sv = TARG; |
9607fc9c PP |
1419 | if (SvROK(sv)) |
1420 | sv_unref(sv); | |
a0d0e21e LW |
1421 | (void)SvUPGRADE(sv, SVt_PV); |
1422 | tmplen = SvLEN(sv); /* remember if already alloced */ | |
1423 | if (!tmplen) | |
1424 | Sv_Grow(sv, 80); /* try short-buffering it */ | |
1425 | if (type == OP_RCATLINE) | |
1426 | offset = SvCUR(sv); | |
1427 | else | |
1428 | offset = 0; | |
1429 | } | |
54310121 PP |
1430 | else { |
1431 | sv = sv_2mortal(NEWSV(57, 80)); | |
1432 | offset = 0; | |
1433 | } | |
fbad3eb5 | 1434 | |
684bef36 | 1435 | /* delay EOF state for a snarfed empty file */ |
fbad3eb5 | 1436 | #define SNARF_EOF(gimme,rs,io,sv) \ |
684bef36 | 1437 | (gimme != G_SCALAR || SvCUR(sv) \ |
b9fee9ba | 1438 | || (IoFLAGS(io) & IOf_NOLINE) || !RsSNARF(rs)) |
fbad3eb5 | 1439 | |
a0d0e21e | 1440 | for (;;) { |
fbad3eb5 GS |
1441 | if (!sv_gets(sv, fp, offset) |
1442 | && (type == OP_GLOB || SNARF_EOF(gimme, PL_rs, io, sv))) | |
1443 | { | |
760ac839 | 1444 | PerlIO_clearerr(fp); |
a0d0e21e | 1445 | if (IoFLAGS(io) & IOf_ARGV) { |
3280af22 | 1446 | fp = nextargv(PL_last_in_gv); |
a0d0e21e LW |
1447 | if (fp) |
1448 | continue; | |
3280af22 | 1449 | (void)do_close(PL_last_in_gv, FALSE); |
a0d0e21e LW |
1450 | } |
1451 | else if (type == OP_GLOB) { | |
e476b1b5 GS |
1452 | if (!do_close(PL_last_in_gv, FALSE) && ckWARN(WARN_GLOB)) { |
1453 | Perl_warner(aTHX_ WARN_GLOB, | |
4eb79ab5 | 1454 | "glob failed (child exited with status %d%s)", |
894356b3 | 1455 | (int)(STATUS_CURRENT >> 8), |
cf494569 | 1456 | (STATUS_CURRENT & 0x80) ? ", core dumped" : ""); |
4eb79ab5 | 1457 | } |
a0d0e21e | 1458 | } |
54310121 | 1459 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
1460 | (void)SvOK_off(TARG); |
1461 | PUSHTARG; | |
1462 | } | |
1463 | RETURN; | |
1464 | } | |
bbce6d69 PP |
1465 | /* This should not be marked tainted if the fp is marked clean */ |
1466 | if (!(IoFLAGS(io) & IOf_UNTAINT)) { | |
1467 | TAINT; | |
1468 | SvTAINTED_on(sv); | |
1469 | } | |
a0d0e21e | 1470 | IoLINES(io)++; |
b9fee9ba | 1471 | IoFLAGS(io) |= IOf_NOLINE; |
71be2cbc | 1472 | SvSETMAGIC(sv); |
a0d0e21e | 1473 | XPUSHs(sv); |
a0d0e21e LW |
1474 | if (type == OP_GLOB) { |
1475 | char *tmps; | |
1476 | ||
3280af22 | 1477 | if (SvCUR(sv) > 0 && SvCUR(PL_rs) > 0) { |
c07a80fd | 1478 | tmps = SvEND(sv) - 1; |
3280af22 | 1479 | if (*tmps == *SvPVX(PL_rs)) { |
c07a80fd PP |
1480 | *tmps = '\0'; |
1481 | SvCUR(sv)--; | |
1482 | } | |
1483 | } | |
a0d0e21e LW |
1484 | for (tmps = SvPVX(sv); *tmps; tmps++) |
1485 | if (!isALPHA(*tmps) && !isDIGIT(*tmps) && | |
1486 | strchr("$&*(){}[]'\";\\|?<>~`", *tmps)) | |
1487 | break; | |
43384a1a | 1488 | if (*tmps && PerlLIO_lstat(SvPVX(sv), &PL_statbuf) < 0) { |
a0d0e21e LW |
1489 | (void)POPs; /* Unmatched wildcard? Chuck it... */ |
1490 | continue; | |
1491 | } | |
1492 | } | |
54310121 | 1493 | if (gimme == G_ARRAY) { |
a0d0e21e LW |
1494 | if (SvLEN(sv) - SvCUR(sv) > 20) { |
1495 | SvLEN_set(sv, SvCUR(sv)+1); | |
1496 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1497 | } | |
1498 | sv = sv_2mortal(NEWSV(58, 80)); | |
1499 | continue; | |
1500 | } | |
54310121 | 1501 | else if (gimme == G_SCALAR && !tmplen && SvLEN(sv) - SvCUR(sv) > 80) { |
a0d0e21e LW |
1502 | /* try to reclaim a bit of scalar space (only on 1st alloc) */ |
1503 | if (SvCUR(sv) < 60) | |
1504 | SvLEN_set(sv, 80); | |
1505 | else | |
1506 | SvLEN_set(sv, SvCUR(sv)+40); /* allow some slop */ | |
1507 | Renew(SvPVX(sv), SvLEN(sv), char); | |
1508 | } | |
1509 | RETURN; | |
1510 | } | |
1511 | } | |
1512 | ||
1513 | PP(pp_enter) | |
1514 | { | |
4e35701f | 1515 | djSP; |
c09156bb | 1516 | register PERL_CONTEXT *cx; |
533c011a | 1517 | I32 gimme = OP_GIMME(PL_op, -1); |
a0d0e21e | 1518 | |
54310121 PP |
1519 | if (gimme == -1) { |
1520 | if (cxstack_ix >= 0) | |
1521 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1522 | else | |
1523 | gimme = G_SCALAR; | |
1524 | } | |
a0d0e21e LW |
1525 | |
1526 | ENTER; | |
1527 | ||
1528 | SAVETMPS; | |
924508f0 | 1529 | PUSHBLOCK(cx, CXt_BLOCK, SP); |
a0d0e21e LW |
1530 | |
1531 | RETURN; | |
1532 | } | |
1533 | ||
1534 | PP(pp_helem) | |
1535 | { | |
4e35701f | 1536 | djSP; |
760ac839 | 1537 | HE* he; |
ae77835f | 1538 | SV **svp; |
a0d0e21e | 1539 | SV *keysv = POPs; |
a0d0e21e | 1540 | HV *hv = (HV*)POPs; |
533c011a NIS |
1541 | U32 lval = PL_op->op_flags & OPf_MOD; |
1542 | U32 defer = PL_op->op_private & OPpLVAL_DEFER; | |
be6c24e0 | 1543 | SV *sv; |
a0d0e21e | 1544 | |
ae77835f MB |
1545 | if (SvTYPE(hv) == SVt_PVHV) { |
1546 | he = hv_fetch_ent(hv, keysv, lval && !defer, 0); | |
97fcbf96 | 1547 | svp = he ? &HeVAL(he) : 0; |
ae77835f MB |
1548 | } |
1549 | else if (SvTYPE(hv) == SVt_PVAV) { | |
0ebe0038 | 1550 | if (PL_op->op_private & OPpLVAL_INTRO) |
cea2e8a9 | 1551 | DIE(aTHX_ "Can't localize pseudo-hash element"); |
97fcbf96 | 1552 | svp = avhv_fetch_ent((AV*)hv, keysv, lval && !defer, 0); |
ae77835f | 1553 | } |
c750a3ec | 1554 | else { |
a0d0e21e | 1555 | RETPUSHUNDEF; |
c750a3ec | 1556 | } |
a0d0e21e | 1557 | if (lval) { |
3280af22 | 1558 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 PP |
1559 | SV* lv; |
1560 | SV* key2; | |
2d8e6c8d GS |
1561 | if (!defer) { |
1562 | STRLEN n_a; | |
cea2e8a9 | 1563 | DIE(aTHX_ PL_no_helem, SvPV(keysv, n_a)); |
2d8e6c8d | 1564 | } |
68dc0745 PP |
1565 | lv = sv_newmortal(); |
1566 | sv_upgrade(lv, SVt_PVLV); | |
1567 | LvTYPE(lv) = 'y'; | |
1568 | sv_magic(lv, key2 = newSVsv(keysv), 'y', Nullch, 0); | |
1569 | SvREFCNT_dec(key2); /* sv_magic() increments refcount */ | |
1570 | LvTARG(lv) = SvREFCNT_inc(hv); | |
1571 | LvTARGLEN(lv) = 1; | |
1572 | PUSHs(lv); | |
1573 | RETURN; | |
1574 | } | |
533c011a | 1575 | if (PL_op->op_private & OPpLVAL_INTRO) { |
ae77835f | 1576 | if (HvNAME(hv) && isGV(*svp)) |
533c011a | 1577 | save_gp((GV*)*svp, !(PL_op->op_flags & OPf_SPECIAL)); |
5f05dabc | 1578 | else |
161b7d16 | 1579 | save_helem(hv, keysv, svp); |
5f05dabc | 1580 | } |
533c011a NIS |
1581 | else if (PL_op->op_private & OPpDEREF) |
1582 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 1583 | } |
3280af22 | 1584 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
1585 | /* This makes C<local $tied{foo} = $tied{foo}> possible. |
1586 | * Pushing the magical RHS on to the stack is useless, since | |
1587 | * that magic is soon destined to be misled by the local(), | |
1588 | * and thus the later pp_sassign() will fail to mg_get() the | |
1589 | * old value. This should also cure problems with delayed | |
1590 | * mg_get()s. GSAR 98-07-03 */ | |
1591 | if (!lval && SvGMAGICAL(sv)) | |
1592 | sv = sv_mortalcopy(sv); | |
1593 | PUSHs(sv); | |
a0d0e21e LW |
1594 | RETURN; |
1595 | } | |
1596 | ||
1597 | PP(pp_leave) | |
1598 | { | |
4e35701f | 1599 | djSP; |
c09156bb | 1600 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1601 | register SV **mark; |
1602 | SV **newsp; | |
1603 | PMOP *newpm; | |
1604 | I32 gimme; | |
1605 | ||
533c011a | 1606 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1607 | cx = &cxstack[cxstack_ix]; |
3280af22 | 1608 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ |
a0d0e21e LW |
1609 | } |
1610 | ||
1611 | POPBLOCK(cx,newpm); | |
1612 | ||
533c011a | 1613 | gimme = OP_GIMME(PL_op, -1); |
54310121 PP |
1614 | if (gimme == -1) { |
1615 | if (cxstack_ix >= 0) | |
1616 | gimme = cxstack[cxstack_ix].blk_gimme; | |
1617 | else | |
1618 | gimme = G_SCALAR; | |
1619 | } | |
a0d0e21e | 1620 | |
a1f49e72 | 1621 | TAINT_NOT; |
54310121 PP |
1622 | if (gimme == G_VOID) |
1623 | SP = newsp; | |
1624 | else if (gimme == G_SCALAR) { | |
1625 | MARK = newsp + 1; | |
1626 | if (MARK <= SP) | |
1627 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
1628 | *MARK = TOPs; | |
1629 | else | |
1630 | *MARK = sv_mortalcopy(TOPs); | |
a0d0e21e | 1631 | else { |
54310121 | 1632 | MEXTEND(mark,0); |
3280af22 | 1633 | *MARK = &PL_sv_undef; |
a0d0e21e | 1634 | } |
54310121 | 1635 | SP = MARK; |
a0d0e21e | 1636 | } |
54310121 | 1637 | else if (gimme == G_ARRAY) { |
a1f49e72 CS |
1638 | /* in case LEAVE wipes old return values */ |
1639 | for (mark = newsp + 1; mark <= SP; mark++) { | |
1640 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 1641 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
1642 | TAINT_NOT; /* Each item is independent */ |
1643 | } | |
1644 | } | |
a0d0e21e | 1645 | } |
3280af22 | 1646 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
1647 | |
1648 | LEAVE; | |
1649 | ||
1650 | RETURN; | |
1651 | } | |
1652 | ||
1653 | PP(pp_iter) | |
1654 | { | |
4e35701f | 1655 | djSP; |
c09156bb | 1656 | register PERL_CONTEXT *cx; |
5f05dabc | 1657 | SV* sv; |
4633a7c4 | 1658 | AV* av; |
1d7c1841 | 1659 | SV **itersvp; |
a0d0e21e | 1660 | |
924508f0 | 1661 | EXTEND(SP, 1); |
a0d0e21e | 1662 | cx = &cxstack[cxstack_ix]; |
6b35e009 | 1663 | if (CxTYPE(cx) != CXt_LOOP) |
cea2e8a9 | 1664 | DIE(aTHX_ "panic: pp_iter"); |
a0d0e21e | 1665 | |
1d7c1841 | 1666 | itersvp = CxITERVAR(cx); |
4633a7c4 | 1667 | av = cx->blk_loop.iterary; |
89ea2908 GA |
1668 | if (SvTYPE(av) != SVt_PVAV) { |
1669 | /* iterate ($min .. $max) */ | |
1670 | if (cx->blk_loop.iterlval) { | |
1671 | /* string increment */ | |
1672 | register SV* cur = cx->blk_loop.iterlval; | |
1673 | STRLEN maxlen; | |
1674 | char *max = SvPV((SV*)av, maxlen); | |
1675 | if (!SvNIOK(cur) && SvCUR(cur) <= maxlen) { | |
eaa5c2d6 | 1676 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1677 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1678 | /* safe to reuse old SV */ |
1d7c1841 | 1679 | sv_setsv(*itersvp, cur); |
eaa5c2d6 GA |
1680 | } |
1681 | else | |
1682 | #endif | |
1683 | { | |
1684 | /* we need a fresh SV every time so that loop body sees a | |
1685 | * completely new SV for closures/references to work as | |
1686 | * they used to */ | |
1d7c1841 GS |
1687 | SvREFCNT_dec(*itersvp); |
1688 | *itersvp = newSVsv(cur); | |
eaa5c2d6 | 1689 | } |
89ea2908 GA |
1690 | if (strEQ(SvPVX(cur), max)) |
1691 | sv_setiv(cur, 0); /* terminate next time */ | |
1692 | else | |
1693 | sv_inc(cur); | |
1694 | RETPUSHYES; | |
1695 | } | |
1696 | RETPUSHNO; | |
1697 | } | |
1698 | /* integer increment */ | |
1699 | if (cx->blk_loop.iterix > cx->blk_loop.itermax) | |
1700 | RETPUSHNO; | |
7f61b687 | 1701 | |
eaa5c2d6 | 1702 | #ifndef USE_THREADS /* don't risk potential race */ |
1d7c1841 | 1703 | if (SvREFCNT(*itersvp) == 1 && !SvMAGICAL(*itersvp)) { |
eaa5c2d6 | 1704 | /* safe to reuse old SV */ |
1d7c1841 | 1705 | sv_setiv(*itersvp, cx->blk_loop.iterix++); |
eaa5c2d6 GA |
1706 | } |
1707 | else | |
1708 | #endif | |
1709 | { | |
1710 | /* we need a fresh SV every time so that loop body sees a | |
1711 | * completely new SV for closures/references to work as they | |
1712 | * used to */ | |
1d7c1841 GS |
1713 | SvREFCNT_dec(*itersvp); |
1714 | *itersvp = newSViv(cx->blk_loop.iterix++); | |
eaa5c2d6 | 1715 | } |
89ea2908 GA |
1716 | RETPUSHYES; |
1717 | } | |
1718 | ||
1719 | /* iterate array */ | |
3280af22 | 1720 | if (cx->blk_loop.iterix >= (av == PL_curstack ? cx->blk_oldsp : AvFILL(av))) |
4633a7c4 | 1721 | RETPUSHNO; |
a0d0e21e | 1722 | |
1d7c1841 | 1723 | SvREFCNT_dec(*itersvp); |
a0d0e21e | 1724 | |
155aba94 GS |
1725 | if ((sv = SvMAGICAL(av) |
1726 | ? *av_fetch(av, ++cx->blk_loop.iterix, FALSE) | |
1727 | : AvARRAY(av)[++cx->blk_loop.iterix])) | |
a0d0e21e | 1728 | SvTEMP_off(sv); |
a0d0e21e | 1729 | else |
3280af22 NIS |
1730 | sv = &PL_sv_undef; |
1731 | if (av != PL_curstack && SvIMMORTAL(sv)) { | |
5f05dabc | 1732 | SV *lv = cx->blk_loop.iterlval; |
71be2cbc PP |
1733 | if (lv && SvREFCNT(lv) > 1) { |
1734 | SvREFCNT_dec(lv); | |
1735 | lv = Nullsv; | |
1736 | } | |
5f05dabc PP |
1737 | if (lv) |
1738 | SvREFCNT_dec(LvTARG(lv)); | |
1739 | else { | |
68dc0745 | 1740 | lv = cx->blk_loop.iterlval = NEWSV(26, 0); |
5f05dabc | 1741 | sv_upgrade(lv, SVt_PVLV); |
5f05dabc | 1742 | LvTYPE(lv) = 'y'; |
68dc0745 | 1743 | sv_magic(lv, Nullsv, 'y', Nullch, 0); |
5f05dabc PP |
1744 | } |
1745 | LvTARG(lv) = SvREFCNT_inc(av); | |
1746 | LvTARGOFF(lv) = cx->blk_loop.iterix; | |
42718184 | 1747 | LvTARGLEN(lv) = (STRLEN)UV_MAX; |
5f05dabc PP |
1748 | sv = (SV*)lv; |
1749 | } | |
a0d0e21e | 1750 | |
1d7c1841 | 1751 | *itersvp = SvREFCNT_inc(sv); |
a0d0e21e LW |
1752 | RETPUSHYES; |
1753 | } | |
1754 | ||
1755 | PP(pp_subst) | |
1756 | { | |
4e35701f | 1757 | djSP; dTARG; |
a0d0e21e LW |
1758 | register PMOP *pm = cPMOP; |
1759 | PMOP *rpm = pm; | |
1760 | register SV *dstr; | |
1761 | register char *s; | |
1762 | char *strend; | |
1763 | register char *m; | |
1764 | char *c; | |
1765 | register char *d; | |
1766 | STRLEN clen; | |
1767 | I32 iters = 0; | |
1768 | I32 maxiters; | |
1769 | register I32 i; | |
1770 | bool once; | |
71be2cbc | 1771 | bool rxtainted; |
a0d0e21e | 1772 | char *orig; |
22e551b9 | 1773 | I32 r_flags; |
d9f97599 | 1774 | register REGEXP *rx = pm->op_pmregexp; |
a0d0e21e LW |
1775 | STRLEN len; |
1776 | int force_on_match = 0; | |
3280af22 | 1777 | I32 oldsave = PL_savestack_ix; |
a0d0e21e | 1778 | |
5cd24f17 PP |
1779 | /* known replacement string? */ |
1780 | dstr = (pm->op_pmflags & PMf_CONST) ? POPs : Nullsv; | |
533c011a | 1781 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e LW |
1782 | TARG = POPs; |
1783 | else { | |
54b9620d | 1784 | TARG = DEFSV; |
a0d0e21e | 1785 | EXTEND(SP,1); |
8ec5e241 | 1786 | } |
68dc0745 PP |
1787 | if (SvREADONLY(TARG) |
1788 | || (SvTYPE(TARG) > SVt_PVLV | |
1789 | && !(SvTYPE(TARG) == SVt_PVGV && SvFAKE(TARG)))) | |
d470f89e | 1790 | DIE(aTHX_ PL_no_modify); |
8ec5e241 NIS |
1791 | PUTBACK; |
1792 | ||
a0d0e21e | 1793 | s = SvPV(TARG, len); |
68dc0745 | 1794 | if (!SvPOKp(TARG) || SvTYPE(TARG) == SVt_PVGV) |
a0d0e21e | 1795 | force_on_match = 1; |
b3eb6a9b | 1796 | rxtainted = ((pm->op_pmdynflags & PMdf_TAINTED) || |
3280af22 NIS |
1797 | (PL_tainted && (pm->op_pmflags & PMf_RETAINT))); |
1798 | if (PL_tainted) | |
b3eb6a9b | 1799 | rxtainted |= 2; |
9212bbba | 1800 | TAINT_NOT; |
a0d0e21e LW |
1801 | |
1802 | force_it: | |
1803 | if (!pm || !s) | |
cea2e8a9 | 1804 | DIE(aTHX_ "panic: do_subst"); |
a0d0e21e LW |
1805 | |
1806 | strend = s + len; | |
2beec16e IZ |
1807 | maxiters = 2*(strend - s) + 10; /* We can match twice at each |
1808 | position, once with zero-length, | |
1809 | second time with non-zero. */ | |
a0d0e21e | 1810 | |
3280af22 NIS |
1811 | if (!rx->prelen && PL_curpm) { |
1812 | pm = PL_curpm; | |
d9f97599 | 1813 | rx = pm->op_pmregexp; |
a0d0e21e | 1814 | } |
22e551b9 | 1815 | r_flags = (rx->nparens || SvTEMP(TARG) || PL_sawampersand) |
9d080a66 | 1816 | ? REXEC_COPY_STR : 0; |
f722798b | 1817 | if (SvSCREAM(TARG)) |
22e551b9 | 1818 | r_flags |= REXEC_SCREAM; |
a0d0e21e | 1819 | if (pm->op_pmflags & (PMf_MULTILINE|PMf_SINGLELINE)) { |
3280af22 NIS |
1820 | SAVEINT(PL_multiline); |
1821 | PL_multiline = pm->op_pmflags & PMf_MULTILINE; | |
a0d0e21e LW |
1822 | } |
1823 | orig = m = s; | |
f722798b IZ |
1824 | if (rx->reganch & RE_USE_INTUIT) { |
1825 | s = CALLREG_INTUIT_START(aTHX_ rx, TARG, s, strend, r_flags, NULL); | |
1826 | ||
1827 | if (!s) | |
1828 | goto nope; | |
1829 | /* How to do it in subst? */ | |
1830 | /* if ( (rx->reganch & ROPT_CHECK_ALL) | |
1831 | && !PL_sawampersand | |
1832 | && ((rx->reganch & ROPT_NOSCAN) | |
1833 | || !((rx->reganch & RE_INTUIT_TAIL) | |
1834 | && (r_flags & REXEC_SCREAM)))) | |
1835 | goto yup; | |
1836 | */ | |
a0d0e21e | 1837 | } |
71be2cbc PP |
1838 | |
1839 | /* only replace once? */ | |
a0d0e21e | 1840 | once = !(rpm->op_pmflags & PMf_GLOBAL); |
71be2cbc PP |
1841 | |
1842 | /* known replacement string? */ | |
5cd24f17 | 1843 | c = dstr ? SvPV(dstr, clen) : Nullch; |
71be2cbc PP |
1844 | |
1845 | /* can do inplace substitution? */ | |
22e551b9 | 1846 | if (c && clen <= rx->minlen && (once || !(r_flags & REXEC_COPY_STR)) |
d9f97599 | 1847 | && !(rx->reganch & ROPT_LOOKBEHIND_SEEN)) { |
f722798b IZ |
1848 | if (!CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1849 | r_flags | REXEC_CHECKED)) | |
1850 | { | |
8ec5e241 | 1851 | SPAGAIN; |
3280af22 | 1852 | PUSHs(&PL_sv_no); |
71be2cbc PP |
1853 | LEAVE_SCOPE(oldsave); |
1854 | RETURN; | |
1855 | } | |
1856 | if (force_on_match) { | |
1857 | force_on_match = 0; | |
1858 | s = SvPV_force(TARG, len); | |
1859 | goto force_it; | |
1860 | } | |
71be2cbc | 1861 | d = s; |
3280af22 | 1862 | PL_curpm = pm; |
71be2cbc PP |
1863 | SvSCREAM_off(TARG); /* disable possible screamer */ |
1864 | if (once) { | |
48c036b1 | 1865 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d IZ |
1866 | m = orig + rx->startp[0]; |
1867 | d = orig + rx->endp[0]; | |
71be2cbc PP |
1868 | s = orig; |
1869 | if (m - s > strend - d) { /* faster to shorten from end */ | |
1870 | if (clen) { | |
1871 | Copy(c, m, clen, char); | |
1872 | m += clen; | |
a0d0e21e | 1873 | } |
71be2cbc PP |
1874 | i = strend - d; |
1875 | if (i > 0) { | |
1876 | Move(d, m, i, char); | |
1877 | m += i; | |
a0d0e21e | 1878 | } |
71be2cbc PP |
1879 | *m = '\0'; |
1880 | SvCUR_set(TARG, m - s); | |
1881 | } | |
1882 | /*SUPPRESS 560*/ | |
155aba94 | 1883 | else if ((i = m - s)) { /* faster from front */ |
71be2cbc PP |
1884 | d -= clen; |
1885 | m = d; | |
1886 | sv_chop(TARG, d-i); | |
1887 | s += i; | |
1888 | while (i--) | |
1889 | *--d = *--s; | |
1890 | if (clen) | |
1891 | Copy(c, m, clen, char); | |
1892 | } | |
1893 | else if (clen) { | |
1894 | d -= clen; | |
1895 | sv_chop(TARG, d); | |
1896 | Copy(c, d, clen, char); | |
1897 | } | |
1898 | else { | |
1899 | sv_chop(TARG, d); | |
1900 | } | |
48c036b1 | 1901 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1902 | SPAGAIN; |
3280af22 | 1903 | PUSHs(&PL_sv_yes); |
71be2cbc PP |
1904 | } |
1905 | else { | |
71be2cbc PP |
1906 | do { |
1907 | if (iters++ > maxiters) | |
cea2e8a9 | 1908 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1909 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1910 | m = rx->startp[0] + orig; |
71be2cbc | 1911 | /*SUPPRESS 560*/ |
155aba94 | 1912 | if ((i = m - s)) { |
71be2cbc PP |
1913 | if (s != d) |
1914 | Move(s, d, i, char); | |
1915 | d += i; | |
a0d0e21e | 1916 | } |
71be2cbc PP |
1917 | if (clen) { |
1918 | Copy(c, d, clen, char); | |
1919 | d += clen; | |
1920 | } | |
cf93c79d | 1921 | s = rx->endp[0] + orig; |
cea2e8a9 | 1922 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, |
f722798b IZ |
1923 | TARG, NULL, |
1924 | /* don't match same null twice */ | |
1925 | REXEC_NOT_FIRST|REXEC_IGNOREPOS)); | |
71be2cbc PP |
1926 | if (s != d) { |
1927 | i = strend - s; | |
1928 | SvCUR_set(TARG, d - SvPVX(TARG) + i); | |
1929 | Move(s, d, i+1, char); /* include the NUL */ | |
a0d0e21e | 1930 | } |
48c036b1 | 1931 | TAINT_IF(rxtainted & 1); |
8ec5e241 | 1932 | SPAGAIN; |
71be2cbc | 1933 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
a0d0e21e | 1934 | } |
80b498e0 | 1935 | (void)SvPOK_only_UTF8(TARG); |
48c036b1 | 1936 | TAINT_IF(rxtainted); |
8ec5e241 NIS |
1937 | if (SvSMAGICAL(TARG)) { |
1938 | PUTBACK; | |
1939 | mg_set(TARG); | |
1940 | SPAGAIN; | |
1941 | } | |
9212bbba | 1942 | SvTAINT(TARG); |
71be2cbc PP |
1943 | LEAVE_SCOPE(oldsave); |
1944 | RETURN; | |
a0d0e21e | 1945 | } |
71be2cbc | 1946 | |
f722798b IZ |
1947 | if (CALLREGEXEC(aTHX_ rx, s, strend, orig, 0, TARG, NULL, |
1948 | r_flags | REXEC_CHECKED)) | |
1949 | { | |
a0d0e21e LW |
1950 | if (force_on_match) { |
1951 | force_on_match = 0; | |
1952 | s = SvPV_force(TARG, len); | |
1953 | goto force_it; | |
1954 | } | |
48c036b1 | 1955 | rxtainted |= RX_MATCH_TAINTED(rx); |
8ec5e241 | 1956 | dstr = NEWSV(25, len); |
a0d0e21e | 1957 | sv_setpvn(dstr, m, s-m); |
3280af22 | 1958 | PL_curpm = pm; |
a0d0e21e | 1959 | if (!c) { |
c09156bb | 1960 | register PERL_CONTEXT *cx; |
8ec5e241 | 1961 | SPAGAIN; |
a0d0e21e LW |
1962 | PUSHSUBST(cx); |
1963 | RETURNOP(cPMOP->op_pmreplroot); | |
1964 | } | |
cf93c79d | 1965 | r_flags |= REXEC_IGNOREPOS | REXEC_NOT_FIRST; |
a0d0e21e LW |
1966 | do { |
1967 | if (iters++ > maxiters) | |
cea2e8a9 | 1968 | DIE(aTHX_ "Substitution loop"); |
d9f97599 | 1969 | rxtainted |= RX_MATCH_TAINTED(rx); |
cf93c79d | 1970 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
1971 | m = s; |
1972 | s = orig; | |
cf93c79d | 1973 | orig = rx->subbeg; |
a0d0e21e LW |
1974 | s = orig + (m - s); |
1975 | strend = s + (strend - m); | |
1976 | } | |
cf93c79d | 1977 | m = rx->startp[0] + orig; |
a0d0e21e | 1978 | sv_catpvn(dstr, s, m-s); |
cf93c79d | 1979 | s = rx->endp[0] + orig; |
a0d0e21e LW |
1980 | if (clen) |
1981 | sv_catpvn(dstr, c, clen); | |
1982 | if (once) | |
1983 | break; | |
cea2e8a9 | 1984 | } while (CALLREGEXEC(aTHX_ rx, s, strend, orig, s == m, TARG, NULL, r_flags)); |
a0d0e21e | 1985 | sv_catpvn(dstr, s, strend - s); |
748a9306 | 1986 | |
4633a7c4 | 1987 | (void)SvOOK_off(TARG); |
cb0b1708 | 1988 | Safefree(SvPVX(TARG)); |
748a9306 LW |
1989 | SvPVX(TARG) = SvPVX(dstr); |
1990 | SvCUR_set(TARG, SvCUR(dstr)); | |
1991 | SvLEN_set(TARG, SvLEN(dstr)); | |
1992 | SvPVX(dstr) = 0; | |
1993 | sv_free(dstr); | |
1994 | ||
48c036b1 | 1995 | TAINT_IF(rxtainted & 1); |
f878fbec | 1996 | SPAGAIN; |
48c036b1 GS |
1997 | PUSHs(sv_2mortal(newSViv((I32)iters))); |
1998 | ||
a0d0e21e | 1999 | (void)SvPOK_only(TARG); |
48c036b1 | 2000 | TAINT_IF(rxtainted); |
a0d0e21e | 2001 | SvSETMAGIC(TARG); |
9212bbba | 2002 | SvTAINT(TARG); |
4633a7c4 | 2003 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
2004 | RETURN; |
2005 | } | |
5cd24f17 | 2006 | goto ret_no; |
a0d0e21e LW |
2007 | |
2008 | nope: | |
8ec5e241 NIS |
2009 | ret_no: |
2010 | SPAGAIN; | |
3280af22 | 2011 | PUSHs(&PL_sv_no); |
4633a7c4 | 2012 | LEAVE_SCOPE(oldsave); |
a0d0e21e LW |
2013 | RETURN; |
2014 | } | |
2015 | ||
2016 | PP(pp_grepwhile) | |
2017 | { | |
4e35701f | 2018 | djSP; |
a0d0e21e LW |
2019 | |
2020 | if (SvTRUEx(POPs)) | |
3280af22 NIS |
2021 | PL_stack_base[PL_markstack_ptr[-1]++] = PL_stack_base[*PL_markstack_ptr]; |
2022 | ++*PL_markstack_ptr; | |
a0d0e21e LW |
2023 | LEAVE; /* exit inner scope */ |
2024 | ||
2025 | /* All done yet? */ | |
3280af22 | 2026 | if (PL_stack_base + *PL_markstack_ptr > SP) { |
a0d0e21e | 2027 | I32 items; |
54310121 | 2028 | I32 gimme = GIMME_V; |
a0d0e21e LW |
2029 | |
2030 | LEAVE; /* exit outer scope */ | |
2031 | (void)POPMARK; /* pop src */ | |
3280af22 | 2032 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 2033 | (void)POPMARK; /* pop dst */ |
3280af22 | 2034 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 2035 | if (gimme == G_SCALAR) { |
a0d0e21e LW |
2036 | dTARGET; |
2037 | XPUSHi(items); | |
a0d0e21e | 2038 | } |
54310121 PP |
2039 | else if (gimme == G_ARRAY) |
2040 | SP += items; | |
a0d0e21e LW |
2041 | RETURN; |
2042 | } | |
2043 | else { | |
2044 | SV *src; | |
2045 | ||
2046 | ENTER; /* enter inner scope */ | |
1d7c1841 | 2047 | SAVEVPTR(PL_curpm); |
a0d0e21e | 2048 | |
3280af22 | 2049 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 2050 | SvTEMP_off(src); |
54b9620d | 2051 | DEFSV = src; |
a0d0e21e LW |
2052 | |
2053 | RETURNOP(cLOGOP->op_other); | |
2054 | } | |
2055 | } | |
2056 | ||
2057 | PP(pp_leavesub) | |
2058 | { | |
4e35701f | 2059 | djSP; |
a0d0e21e LW |
2060 | SV **mark; |
2061 | SV **newsp; | |
2062 | PMOP *newpm; | |
2063 | I32 gimme; | |
c09156bb | 2064 | register PERL_CONTEXT *cx; |
b0d9ce38 | 2065 | SV *sv; |
a0d0e21e LW |
2066 | |
2067 | POPBLOCK(cx,newpm); | |
f86702cc | 2068 | |
a1f49e72 | 2069 | TAINT_NOT; |
a0d0e21e LW |
2070 | if (gimme == G_SCALAR) { |
2071 | MARK = newsp + 1; | |
a29cdaf0 | 2072 | if (MARK <= SP) { |
a8bba7fa | 2073 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2074 | if (SvTEMP(TOPs)) { |
2075 | *MARK = SvREFCNT_inc(TOPs); | |
2076 | FREETMPS; | |
2077 | sv_2mortal(*MARK); | |
cd06dffe GS |
2078 | } |
2079 | else { | |
959e3673 | 2080 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
a29cdaf0 | 2081 | FREETMPS; |
959e3673 GS |
2082 | *MARK = sv_mortalcopy(sv); |
2083 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2084 | } |
cd06dffe GS |
2085 | } |
2086 | else | |
a29cdaf0 | 2087 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); |
cd06dffe GS |
2088 | } |
2089 | else { | |
f86702cc | 2090 | MEXTEND(MARK, 0); |
3280af22 | 2091 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
2092 | } |
2093 | SP = MARK; | |
2094 | } | |
54310121 | 2095 | else if (gimme == G_ARRAY) { |
f86702cc | 2096 | for (MARK = newsp + 1; MARK <= SP; MARK++) { |
a1f49e72 | 2097 | if (!SvTEMP(*MARK)) { |
f86702cc | 2098 | *MARK = sv_mortalcopy(*MARK); |
a1f49e72 CS |
2099 | TAINT_NOT; /* Each item is independent */ |
2100 | } | |
f86702cc | 2101 | } |
a0d0e21e | 2102 | } |
f86702cc PP |
2103 | PUTBACK; |
2104 | ||
b0d9ce38 | 2105 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
3280af22 | 2106 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e LW |
2107 | |
2108 | LEAVE; | |
b0d9ce38 | 2109 | LEAVESUB(sv); |
a0d0e21e LW |
2110 | return pop_return(); |
2111 | } | |
2112 | ||
cd06dffe GS |
2113 | /* This duplicates the above code because the above code must not |
2114 | * get any slower by more conditions */ | |
2115 | PP(pp_leavesublv) | |
2116 | { | |
2117 | djSP; | |
2118 | SV **mark; | |
2119 | SV **newsp; | |
2120 | PMOP *newpm; | |
2121 | I32 gimme; | |
2122 | register PERL_CONTEXT *cx; | |
b0d9ce38 | 2123 | SV *sv; |
cd06dffe GS |
2124 | |
2125 | POPBLOCK(cx,newpm); | |
cd06dffe GS |
2126 | |
2127 | TAINT_NOT; | |
2128 | ||
2129 | if (cx->blk_sub.lval & OPpENTERSUB_INARGS) { | |
2130 | /* We are an argument to a function or grep(). | |
2131 | * This kind of lvalueness was legal before lvalue | |
2132 | * subroutines too, so be backward compatible: | |
2133 | * cannot report errors. */ | |
2134 | ||
2135 | /* Scalar context *is* possible, on the LHS of -> only, | |
2136 | * as in f()->meth(). But this is not an lvalue. */ | |
2137 | if (gimme == G_SCALAR) | |
2138 | goto temporise; | |
2139 | if (gimme == G_ARRAY) { | |
a8bba7fa | 2140 | if (!CvLVALUE(cx->blk_sub.cv)) |
cd06dffe GS |
2141 | goto temporise_array; |
2142 | EXTEND_MORTAL(SP - newsp); | |
2143 | for (mark = newsp + 1; mark <= SP; mark++) { | |
2144 | if (SvTEMP(*mark)) | |
2145 | /* empty */ ; | |
2146 | else if (SvFLAGS(*mark) & (SVs_PADTMP | SVf_READONLY)) | |
2147 | *mark = sv_mortalcopy(*mark); | |
2148 | else { | |
2149 | /* Can be a localized value subject to deletion. */ | |
2150 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2151 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2152 | } |
2153 | } | |
2154 | } | |
2155 | } | |
2156 | else if (cx->blk_sub.lval) { /* Leave it as it is if we can. */ | |
2157 | /* Here we go for robustness, not for speed, so we change all | |
2158 | * the refcounts so the caller gets a live guy. Cannot set | |
2159 | * TEMP, so sv_2mortal is out of question. */ | |
a8bba7fa | 2160 | if (!CvLVALUE(cx->blk_sub.cv)) { |
b0d9ce38 | 2161 | POPSUB(cx,sv); |
d470f89e | 2162 | PL_curpm = newpm; |
b0d9ce38 GS |
2163 | LEAVE; |
2164 | LEAVESUB(sv); | |
d470f89e GS |
2165 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); |
2166 | } | |
cd06dffe GS |
2167 | if (gimme == G_SCALAR) { |
2168 | MARK = newsp + 1; | |
2169 | EXTEND_MORTAL(1); | |
2170 | if (MARK == SP) { | |
d470f89e | 2171 | if (SvFLAGS(TOPs) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
b0d9ce38 | 2172 | POPSUB(cx,sv); |
d470f89e | 2173 | PL_curpm = newpm; |
b0d9ce38 GS |
2174 | LEAVE; |
2175 | LEAVESUB(sv); | |
d470f89e | 2176 | DIE(aTHX_ "Can't return a %s from lvalue subroutine", |
cd06dffe | 2177 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); |
d470f89e | 2178 | } |
cd06dffe GS |
2179 | else { /* Can be a localized value |
2180 | * subject to deletion. */ | |
2181 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2182 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2183 | } |
2184 | } | |
d470f89e | 2185 | else { /* Should not happen? */ |
b0d9ce38 | 2186 | POPSUB(cx,sv); |
d470f89e | 2187 | PL_curpm = newpm; |
b0d9ce38 GS |
2188 | LEAVE; |
2189 | LEAVESUB(sv); | |
d470f89e | 2190 | DIE(aTHX_ "%s returned from lvalue subroutine in scalar context", |
cd06dffe | 2191 | (MARK > SP ? "Empty array" : "Array")); |
d470f89e | 2192 | } |
cd06dffe GS |
2193 | SP = MARK; |
2194 | } | |
2195 | else if (gimme == G_ARRAY) { | |
2196 | EXTEND_MORTAL(SP - newsp); | |
2197 | for (mark = newsp + 1; mark <= SP; mark++) { | |
d470f89e GS |
2198 | if (SvFLAGS(*mark) & (SVs_TEMP | SVs_PADTMP | SVf_READONLY)) { |
2199 | /* Might be flattened array after $#array = */ | |
2200 | PUTBACK; | |
b0d9ce38 | 2201 | POPSUB(cx,sv); |
d470f89e | 2202 | PL_curpm = newpm; |
b0d9ce38 GS |
2203 | LEAVE; |
2204 | LEAVESUB(sv); | |
d470f89e | 2205 | DIE(aTHX_ "Can't return %s from lvalue subroutine", |
cd06dffe GS |
2206 | (*mark != &PL_sv_undef) |
2207 | ? (SvREADONLY(TOPs) | |
2208 | ? "a readonly value" : "a temporary") | |
2209 | : "an uninitialized value"); | |
d470f89e | 2210 | } |
cd06dffe | 2211 | else { |
cd06dffe GS |
2212 | /* Can be a localized value subject to deletion. */ |
2213 | PL_tmps_stack[++PL_tmps_ix] = *mark; | |
e1f15930 | 2214 | (void)SvREFCNT_inc(*mark); |
cd06dffe GS |
2215 | } |
2216 | } | |
2217 | } | |
2218 | } | |
2219 | else { | |
2220 | if (gimme == G_SCALAR) { | |
2221 | temporise: | |
2222 | MARK = newsp + 1; | |
2223 | if (MARK <= SP) { | |
a8bba7fa | 2224 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
cd06dffe GS |
2225 | if (SvTEMP(TOPs)) { |
2226 | *MARK = SvREFCNT_inc(TOPs); | |
2227 | FREETMPS; | |
2228 | sv_2mortal(*MARK); | |
2229 | } | |
2230 | else { | |
959e3673 | 2231 | sv = SvREFCNT_inc(TOPs); /* FREETMPS could clobber it */ |
cd06dffe | 2232 | FREETMPS; |
959e3673 GS |
2233 | *MARK = sv_mortalcopy(sv); |
2234 | SvREFCNT_dec(sv); | |
cd06dffe GS |
2235 | } |
2236 | } | |
2237 | else | |
2238 | *MARK = SvTEMP(TOPs) ? TOPs : sv_mortalcopy(TOPs); | |
2239 | } | |
2240 | else { | |
2241 | MEXTEND(MARK, 0); | |
2242 | *MARK = &PL_sv_undef; | |
2243 | } | |
2244 | SP = MARK; | |
2245 | } | |
2246 | else if (gimme == G_ARRAY) { | |
2247 | temporise_array: | |
2248 | for (MARK = newsp + 1; MARK <= SP; MARK++) { | |
2249 | if (!SvTEMP(*MARK)) { | |
2250 | *MARK = sv_mortalcopy(*MARK); | |
2251 | TAINT_NOT; /* Each item is independent */ | |
2252 | } | |
2253 | } | |
2254 | } | |
2255 | } | |
2256 | PUTBACK; | |
2257 | ||
b0d9ce38 | 2258 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ |
cd06dffe GS |
2259 | PL_curpm = newpm; /* ... and pop $1 et al */ |
2260 | ||
2261 | LEAVE; | |
b0d9ce38 | 2262 | LEAVESUB(sv); |
cd06dffe GS |
2263 | return pop_return(); |
2264 | } | |
2265 | ||
2266 | ||
76e3520e | 2267 | STATIC CV * |
cea2e8a9 | 2268 | S_get_db_sub(pTHX_ SV **svp, CV *cv) |
3de9ffa1 MB |
2269 | { |
2270 | dTHR; | |
3280af22 | 2271 | SV *dbsv = GvSV(PL_DBsub); |
491527d0 GS |
2272 | |
2273 | if (!PERLDB_SUB_NN) { | |
2274 | GV *gv = CvGV(cv); | |
2275 | ||
2276 | save_item(dbsv); | |
2277 | if ( (CvFLAGS(cv) & (CVf_ANON | CVf_CLONED)) | |
2278 | || strEQ(GvNAME(gv), "END") | |
2279 | || ((GvCV(gv) != cv) && /* Could be imported, and old sub redefined. */ | |
2280 | !( (SvTYPE(*svp) == SVt_PVGV) && (GvCV((GV*)*svp) == cv) | |
2281 | && (gv = (GV*)*svp) ))) { | |
2282 | /* Use GV from the stack as a fallback. */ | |
2283 | /* GV is potentially non-unique, or contain different CV. */ | |
c2e66d9e GS |
2284 | SV *tmp = newRV((SV*)cv); |
2285 | sv_setsv(dbsv, tmp); | |
2286 | SvREFCNT_dec(tmp); | |
491527d0 GS |
2287 | } |
2288 | else { | |
2289 | gv_efullname3(dbsv, gv, Nullch); | |
2290 | } | |
3de9ffa1 MB |
2291 | } |
2292 | else { | |
155aba94 GS |
2293 | (void)SvUPGRADE(dbsv, SVt_PVIV); |
2294 | (void)SvIOK_on(dbsv); | |
491527d0 | 2295 | SAVEIV(SvIVX(dbsv)); |
5bc28da9 | 2296 | SvIVX(dbsv) = PTR2IV(cv); /* Do it the quickest way */ |
3de9ffa1 | 2297 | } |
491527d0 | 2298 | |
3de9ffa1 | 2299 | if (CvXSUB(cv)) |
3280af22 NIS |
2300 | PL_curcopdb = PL_curcop; |
2301 | cv = GvCV(PL_DBsub); | |
3de9ffa1 MB |
2302 | return cv; |
2303 | } | |
2304 | ||
a0d0e21e LW |
2305 | PP(pp_entersub) |
2306 | { | |
4e35701f | 2307 | djSP; dPOPss; |
a0d0e21e LW |
2308 | GV *gv; |
2309 | HV *stash; | |
2310 | register CV *cv; | |
c09156bb | 2311 | register PERL_CONTEXT *cx; |
5d94fbed | 2312 | I32 gimme; |
533c011a | 2313 | bool hasargs = (PL_op->op_flags & OPf_STACKED) != 0; |
a0d0e21e LW |
2314 | |
2315 | if (!sv) | |
cea2e8a9 | 2316 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2317 | switch (SvTYPE(sv)) { |
2318 | default: | |
2319 | if (!SvROK(sv)) { | |
748a9306 | 2320 | char *sym; |
2d8e6c8d | 2321 | STRLEN n_a; |
748a9306 | 2322 | |
3280af22 | 2323 | if (sv == &PL_sv_yes) { /* unfound import, ignore */ |
fb73857a | 2324 | if (hasargs) |
3280af22 | 2325 | SP = PL_stack_base + POPMARK; |
a0d0e21e | 2326 | RETURN; |
fb73857a | 2327 | } |
15ff848f CS |
2328 | if (SvGMAGICAL(sv)) { |
2329 | mg_get(sv); | |
2330 | sym = SvPOKp(sv) ? SvPVX(sv) : Nullch; | |
2331 | } | |
2332 | else | |
2d8e6c8d | 2333 | sym = SvPV(sv, n_a); |
15ff848f | 2334 | if (!sym) |
cea2e8a9 | 2335 | DIE(aTHX_ PL_no_usym, "a subroutine"); |
533c011a | 2336 | if (PL_op->op_private & HINT_STRICT_REFS) |
cea2e8a9 | 2337 | DIE(aTHX_ PL_no_symref, sym, "a subroutine"); |
864dbfa3 | 2338 | cv = get_cv(sym, TRUE); |
a0d0e21e LW |
2339 | break; |
2340 | } | |
f5284f61 IZ |
2341 | { |
2342 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ | |
2343 | tryAMAGICunDEREF(to_cv); | |
2344 | } | |
a0d0e21e LW |
2345 | cv = (CV*)SvRV(sv); |
2346 | if (SvTYPE(cv) == SVt_PVCV) | |
2347 | break; | |
2348 | /* FALL THROUGH */ | |
2349 | case SVt_PVHV: | |
2350 | case SVt_PVAV: | |
cea2e8a9 | 2351 | DIE(aTHX_ "Not a CODE reference"); |
a0d0e21e LW |
2352 | case SVt_PVCV: |
2353 | cv = (CV*)sv; | |
2354 | break; | |
2355 | case SVt_PVGV: | |
8ebc5c01 | 2356 | if (!(cv = GvCVu((GV*)sv))) |
f6ec51f7 GS |
2357 | cv = sv_2cv(sv, &stash, &gv, FALSE); |
2358 | if (!cv) { | |
2359 | ENTER; | |
2360 | SAVETMPS; | |
2361 | goto try_autoload; | |
2362 | } | |
2363 | break; | |
a0d0e21e LW |
2364 | } |
2365 | ||
2366 | ENTER; | |
2367 | SAVETMPS; | |
2368 | ||
2369 | retry: | |
a0d0e21e | 2370 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
44a8e56a | 2371 | GV* autogv; |
22239a37 | 2372 | SV* sub_name; |
44a8e56a PP |
2373 | |
2374 | /* anonymous or undef'd function leaves us no recourse */ | |
2375 | if (CvANON(cv) || !(gv = CvGV(cv))) | |
cea2e8a9 | 2376 | DIE(aTHX_ "Undefined subroutine called"); |
67caa1fe | 2377 | |
44a8e56a PP |
2378 | /* autoloaded stub? */ |
2379 | if (cv != GvCV(gv)) { | |
2380 | cv = GvCV(gv); | |
a0d0e21e | 2381 | } |
44a8e56a | 2382 | /* should call AUTOLOAD now? */ |
67caa1fe | 2383 | else { |
f6ec51f7 GS |
2384 | try_autoload: |
2385 | if ((autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), | |
2386 | FALSE))) | |
2387 | { | |
2388 | cv = GvCV(autogv); | |
2389 | } | |
2390 | /* sorry */ | |
2391 | else { | |
2392 | sub_name = sv_newmortal(); | |
2393 | gv_efullname3(sub_name, gv, Nullch); | |
cea2e8a9 | 2394 | DIE(aTHX_ "Undefined subroutine &%s called", SvPVX(sub_name)); |
f6ec51f7 | 2395 | } |
67caa1fe GS |
2396 | } |
2397 | if (!cv) | |
cea2e8a9 | 2398 | DIE(aTHX_ "Not a CODE reference"); |
67caa1fe | 2399 | goto retry; |
a0d0e21e LW |
2400 | } |
2401 | ||
54310121 | 2402 | gimme = GIMME_V; |
67caa1fe | 2403 | if ((PL_op->op_private & OPpENTERSUB_DB) && GvCV(PL_DBsub) && !CvNODEBUG(cv)) { |
4f01c5a5 | 2404 | cv = get_db_sub(&sv, cv); |
67caa1fe | 2405 | if (!cv) |
cea2e8a9 | 2406 | DIE(aTHX_ "No DBsub routine"); |
67caa1fe | 2407 | } |
a0d0e21e | 2408 | |
11343788 | 2409 | #ifdef USE_THREADS |
3de9ffa1 MB |
2410 | /* |
2411 | * First we need to check if the sub or method requires locking. | |
458fb581 MB |
2412 | * If so, we gain a lock on the CV, the first argument or the |
2413 | * stash (for static methods), as appropriate. This has to be | |
2414 | * inline because for FAKE_THREADS, COND_WAIT inlines code to | |
2415 | * reschedule by returning a new op. | |
3de9ffa1 | 2416 | */ |
11343788 | 2417 | MUTEX_LOCK(CvMUTEXP(cv)); |
77a005ab MB |
2418 | if (CvFLAGS(cv) & CVf_LOCKED) { |
2419 | MAGIC *mg; | |
2420 | if (CvFLAGS(cv) & CVf_METHOD) { | |
533c011a NIS |
2421 | if (SP > PL_stack_base + TOPMARK) |
2422 | sv = *(PL_stack_base + TOPMARK + 1); | |
77a005ab | 2423 | else { |
13e08037 GS |
2424 | AV *av = (AV*)PL_curpad[0]; |
2425 | if (hasargs || !av || AvFILLp(av) < 0 | |
2426 | || !(sv = AvARRAY(av)[0])) | |
2427 | { | |
2428 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
d470f89e | 2429 | DIE(aTHX_ "no argument for locked method call"); |
13e08037 | 2430 | } |
77a005ab MB |
2431 | } |
2432 | if (SvROK(sv)) | |
2433 | sv = SvRV(sv); | |
458fb581 MB |
2434 | else { |
2435 | STRLEN len; | |
2436 | char *stashname = SvPV(sv, len); | |
2437 | sv = (SV*)gv_stashpvn(stashname, len, TRUE); | |
2438 | } | |
77a005ab MB |
2439 | } |
2440 | else { | |
2441 | sv = (SV*)cv; | |
2442 | } | |
2443 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2444 | mg = condpair_magic(sv); | |
2445 | MUTEX_LOCK(MgMUTEXP(mg)); | |
2446 | if (MgOWNER(mg) == thr) | |
2447 | MUTEX_UNLOCK(MgMUTEXP(mg)); | |
2448 | else { | |
2449 | while (MgOWNER(mg)) | |
2450 | COND_WAIT(MgOWNERCONDP(mg), MgMUTEXP(mg)); | |
2451 | MgOWNER(mg) = thr; | |
bf49b057 | 2452 | DEBUG_S(PerlIO_printf(Perl_debug_log, "%p: pp_entersub lock %p\n", |
1fd28e87 | 2453 | thr, sv);) |
77a005ab | 2454 | MUTEX_UNLOCK(MgMUTEXP(mg)); |
c76ac1ee | 2455 | SAVEDESTRUCTOR_X(Perl_unlock_condpair, sv); |
11343788 | 2456 | } |
77a005ab | 2457 | MUTEX_LOCK(CvMUTEXP(cv)); |
11343788 | 2458 | } |
3de9ffa1 MB |
2459 | /* |
2460 | * Now we have permission to enter the sub, we must distinguish | |
2461 | * four cases. (0) It's an XSUB (in which case we don't care | |
2462 | * about ownership); (1) it's ours already (and we're recursing); | |
2463 | * (2) it's free (but we may already be using a cached clone); | |
2464 | * (3) another thread owns it. Case (1) is easy: we just use it. | |
2465 | * Case (2) means we look for a clone--if we have one, use it | |
2466 | * otherwise grab ownership of cv. Case (3) means we look for a | |
2467 | * clone (for non-XSUBs) and have to create one if we don't | |
2468 | * already have one. | |
2469 | * Why look for a clone in case (2) when we could just grab | |
2470 | * ownership of cv straight away? Well, we could be recursing, | |
2471 | * i.e. we originally tried to enter cv while another thread | |
2472 | * owned it (hence we used a clone) but it has been freed up | |
2473 | * and we're now recursing into it. It may or may not be "better" | |
2474 | * to use the clone but at least CvDEPTH can be trusted. | |
2475 | */ | |
2476 | if (CvOWNER(cv) == thr || CvXSUB(cv)) | |
2477 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
11343788 | 2478 | else { |
3de9ffa1 MB |
2479 | /* Case (2) or (3) */ |
2480 | SV **svp; | |
2481 | ||
11343788 | 2482 | /* |
3de9ffa1 MB |
2483 | * XXX Might it be better to release CvMUTEXP(cv) while we |
2484 | * do the hv_fetch? We might find someone has pinched it | |
2485 | * when we look again, in which case we would be in case | |
2486 | * (3) instead of (2) so we'd have to clone. Would the fact | |
2487 | * that we released the mutex more quickly make up for this? | |
2488 | */ | |
b099ddc0 | 2489 | if ((svp = hv_fetch(thr->cvcache, (char *)cv, sizeof(cv), FALSE))) |
6ee623d5 | 2490 | { |
3de9ffa1 | 2491 | /* We already have a clone to use */ |
11343788 | 2492 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
3de9ffa1 | 2493 | cv = *(CV**)svp; |
bf49b057 | 2494 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2495 | "entersub: %p already has clone %p:%s\n", |
2496 | thr, cv, SvPEEK((SV*)cv))); | |
3de9ffa1 MB |
2497 | CvOWNER(cv) = thr; |
2498 | SvREFCNT_inc(cv); | |
2499 | if (CvDEPTH(cv) == 0) | |
c76ac1ee | 2500 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
3de9ffa1 | 2501 | } |
11343788 | 2502 | else { |
3de9ffa1 MB |
2503 | /* (2) => grab ownership of cv. (3) => make clone */ |
2504 | if (!CvOWNER(cv)) { | |
2505 | CvOWNER(cv) = thr; | |
2506 | SvREFCNT_inc(cv); | |
11343788 | 2507 | MUTEX_UNLOCK(CvMUTEXP(cv)); |
bf49b057 | 2508 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2509 | "entersub: %p grabbing %p:%s in stash %s\n", |
2510 | thr, cv, SvPEEK((SV*)cv), CvSTASH(cv) ? | |
3de9ffa1 | 2511 | HvNAME(CvSTASH(cv)) : "(none)")); |
cd06dffe GS |
2512 | } |
2513 | else { | |
3de9ffa1 MB |
2514 | /* Make a new clone. */ |
2515 | CV *clonecv; | |
2516 | SvREFCNT_inc(cv); /* don't let it vanish from under us */ | |
2517 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
bf49b057 | 2518 | DEBUG_S((PerlIO_printf(Perl_debug_log, |
1fd28e87 MB |
2519 | "entersub: %p cloning %p:%s\n", |
2520 | thr, cv, SvPEEK((SV*)cv)))); | |
3de9ffa1 MB |
2521 | /* |
2522 | * We're creating a new clone so there's no race | |
2523 | * between the original MUTEX_UNLOCK and the | |
2524 | * SvREFCNT_inc since no one will be trying to undef | |
2525 | * it out from underneath us. At least, I don't think | |
2526 | * there's a race... | |
2527 | */ | |
2528 | clonecv = cv_clone(cv); | |
2529 | SvREFCNT_dec(cv); /* finished with this */ | |
199100c8 | 2530 | hv_store(thr->cvcache, (char*)cv, sizeof(cv), (SV*)clonecv,0); |
3de9ffa1 MB |
2531 | CvOWNER(clonecv) = thr; |
2532 | cv = clonecv; | |
11343788 | 2533 | SvREFCNT_inc(cv); |
11343788 | 2534 | } |
8b73bbec | 2535 | DEBUG_S(if (CvDEPTH(cv) != 0) |
bf49b057 | 2536 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
3de9ffa1 | 2537 | CvDEPTH(cv));); |
c76ac1ee | 2538 | SAVEDESTRUCTOR_X(unset_cvowner, (void*) cv); |
11343788 | 2539 | } |
3de9ffa1 | 2540 | } |
11343788 MB |
2541 | #endif /* USE_THREADS */ |
2542 | ||
a0d0e21e | 2543 | if (CvXSUB(cv)) { |
67caa1fe | 2544 | #ifdef PERL_XSUB_OLDSTYLE |
a0d0e21e | 2545 | if (CvOLDSTYLE(cv)) { |
20ce7b12 | 2546 | I32 (*fp3)(int,int,int); |
a0d0e21e LW |
2547 | dMARK; |
2548 | register I32 items = SP - MARK; | |
67955e0c | 2549 | /* We dont worry to copy from @_. */ |
924508f0 GS |
2550 | while (SP > mark) { |
2551 | SP[1] = SP[0]; | |
2552 | SP--; | |
a0d0e21e | 2553 | } |
3280af22 | 2554 | PL_stack_sp = mark + 1; |
1d7c1841 | 2555 | fp3 = (I32(*)(int,int,int))CvXSUB(cv); |
ecfc5424 | 2556 | items = (*fp3)(CvXSUBANY(cv).any_i32, |
3280af22 | 2557 | MARK - PL_stack_base + 1, |
ecfc5424 | 2558 | items); |
3280af22 | 2559 | PL_stack_sp = PL_stack_base + items; |
a0d0e21e | 2560 | } |
67caa1fe GS |
2561 | else |
2562 | #endif /* PERL_XSUB_OLDSTYLE */ | |
2563 | { | |
748a9306 LW |
2564 | I32 markix = TOPMARK; |
2565 | ||
a0d0e21e | 2566 | PUTBACK; |
67955e0c PP |
2567 | |
2568 | if (!hasargs) { | |
2569 | /* Need to copy @_ to stack. Alternative may be to | |
2570 | * switch stack to @_, and copy return values | |
2571 | * back. This would allow popping @_ in XSUB, e.g.. XXXX */ | |
6d4ff0d2 MB |
2572 | AV* av; |
2573 | I32 items; | |
2574 | #ifdef USE_THREADS | |
533c011a | 2575 | av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2576 | #else |
3280af22 | 2577 | av = GvAV(PL_defgv); |
6d4ff0d2 | 2578 | #endif /* USE_THREADS */ |
93965878 | 2579 | items = AvFILLp(av) + 1; /* @_ is not tieable */ |
67955e0c PP |
2580 | |
2581 | if (items) { | |
2582 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2583 | EXTEND(SP, items); |
2584 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2585 | SP += items; | |
67955e0c PP |
2586 | PUTBACK ; |
2587 | } | |
2588 | } | |
67caa1fe GS |
2589 | /* We assume first XSUB in &DB::sub is the called one. */ |
2590 | if (PL_curcopdb) { | |
1d7c1841 | 2591 | SAVEVPTR(PL_curcop); |
3280af22 NIS |
2592 | PL_curcop = PL_curcopdb; |
2593 | PL_curcopdb = NULL; | |
67955e0c PP |
2594 | } |
2595 | /* Do we need to open block here? XXXX */ | |
0cb96387 | 2596 | (void)(*CvXSUB(cv))(aTHXo_ cv); |
748a9306 LW |
2597 | |
2598 | /* Enforce some sanity in scalar context. */ | |
3280af22 NIS |
2599 | if (gimme == G_SCALAR && ++markix != PL_stack_sp - PL_stack_base ) { |
2600 | if (markix > PL_stack_sp - PL_stack_base) | |
2601 | *(PL_stack_base + markix) = &PL_sv_undef; | |
748a9306 | 2602 | else |
3280af22 NIS |
2603 | *(PL_stack_base + markix) = *PL_stack_sp; |
2604 | PL_stack_sp = PL_stack_base + markix; | |
748a9306 | 2605 | } |
a0d0e21e LW |
2606 | } |
2607 | LEAVE; | |
2608 | return NORMAL; | |
2609 | } | |
2610 | else { | |
2611 | dMARK; | |
2612 | register I32 items = SP - MARK; | |
a0d0e21e LW |
2613 | AV* padlist = CvPADLIST(cv); |
2614 | SV** svp = AvARRAY(padlist); | |
533c011a | 2615 | push_return(PL_op->op_next); |
a0d0e21e LW |
2616 | PUSHBLOCK(cx, CXt_SUB, MARK); |
2617 | PUSHSUB(cx); | |
2618 | CvDEPTH(cv)++; | |
6b35e009 GS |
2619 | /* XXX This would be a natural place to set C<PL_compcv = cv> so |
2620 | * that eval'' ops within this sub know the correct lexical space. | |
2621 | * Owing the speed considerations, we choose to search for the cv | |
2622 | * in doeval() instead. | |
2623 | */ | |
a0d0e21e LW |
2624 | if (CvDEPTH(cv) < 2) |
2625 | (void)SvREFCNT_inc(cv); | |
2626 | else { /* save temporaries on recursion? */ | |
1d7c1841 | 2627 | PERL_STACK_OVERFLOW_CHECK(); |
93965878 | 2628 | if (CvDEPTH(cv) > AvFILLp(padlist)) { |
a0d0e21e LW |
2629 | AV *av; |
2630 | AV *newpad = newAV(); | |
4aa0a1f7 | 2631 | SV **oldpad = AvARRAY(svp[CvDEPTH(cv)-1]); |
93965878 | 2632 | I32 ix = AvFILLp((AV*)svp[1]); |
1d7c1841 | 2633 | I32 names_fill = AvFILLp((AV*)svp[0]); |
a0d0e21e | 2634 | svp = AvARRAY(svp[0]); |
748a9306 | 2635 | for ( ;ix > 0; ix--) { |
1d7c1841 | 2636 | if (names_fill >= ix && svp[ix] != &PL_sv_undef) { |
748a9306 | 2637 | char *name = SvPVX(svp[ix]); |
5f05dabc PP |
2638 | if ((SvFLAGS(svp[ix]) & SVf_FAKE) /* outer lexical? */ |
2639 | || *name == '&') /* anonymous code? */ | |
2640 | { | |
2641 | av_store(newpad, ix, SvREFCNT_inc(oldpad[ix])); | |
748a9306 LW |
2642 | } |
2643 | else { /* our own lexical */ | |
2644 | if (*name == '@') | |
2645 | av_store(newpad, ix, sv = (SV*)newAV()); | |
2646 | else if (*name == '%') | |
2647 | av_store(newpad, ix, sv = (SV*)newHV()); | |
2648 | else | |
2649 | av_store(newpad, ix, sv = NEWSV(0,0)); | |
2650 | SvPADMY_on(sv); | |
2651 | } | |
a0d0e21e | 2652 | } |
1d7c1841 GS |
2653 | else if (IS_PADGV(oldpad[ix]) || IS_PADCONST(oldpad[ix])) { |
2654 | av_store(newpad, ix, sv = SvREFCNT_inc(oldpad[ix])); | |
2655 | } | |
a0d0e21e | 2656 | else { |
748a9306 | 2657 | av_store(newpad, ix, sv = NEWSV(0,0)); |
a0d0e21e LW |
2658 | SvPADTMP_on(sv); |
2659 | } | |
2660 | } | |
2661 | av = newAV(); /* will be @_ */ | |
2662 | av_extend(av, 0); | |
2663 | av_store(newpad, 0, (SV*)av); | |
2664 | AvFLAGS(av) = AVf_REIFY; | |
2665 | av_store(padlist, CvDEPTH(cv), (SV*)newpad); | |
93965878 | 2666 | AvFILLp(padlist) = CvDEPTH(cv); |
a0d0e21e LW |
2667 | svp = AvARRAY(padlist); |
2668 | } | |
2669 | } | |
6d4ff0d2 MB |
2670 | #ifdef USE_THREADS |
2671 | if (!hasargs) { | |
533c011a | 2672 | AV* av = (AV*)PL_curpad[0]; |
6d4ff0d2 | 2673 | |
93965878 | 2674 | items = AvFILLp(av) + 1; |
6d4ff0d2 MB |
2675 | if (items) { |
2676 | /* Mark is at the end of the stack. */ | |
924508f0 GS |
2677 | EXTEND(SP, items); |
2678 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
2679 | SP += items; | |
6d4ff0d2 MB |
2680 | PUTBACK ; |
2681 | } | |
2682 | } | |
2683 | #endif /* USE_THREADS */ | |
1d7c1841 | 2684 | SAVEVPTR(PL_curpad); |
3280af22 | 2685 | PL_curpad = AvARRAY((AV*)svp[CvDEPTH(cv)]); |
6d4ff0d2 MB |
2686 | #ifndef USE_THREADS |
2687 | if (hasargs) | |
2688 | #endif /* USE_THREADS */ | |
2689 | { | |
2690 | AV* av; | |
a0d0e21e LW |
2691 | SV** ary; |
2692 | ||
77a005ab | 2693 | #if 0 |
bf49b057 | 2694 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2695 | "%p entersub preparing @_\n", thr)); |
77a005ab | 2696 | #endif |
3280af22 | 2697 | av = (AV*)PL_curpad[0]; |
221373f0 GS |
2698 | if (AvREAL(av)) { |
2699 | /* @_ is normally not REAL--this should only ever | |
2700 | * happen when DB::sub() calls things that modify @_ */ | |
2701 | av_clear(av); | |
2702 | AvREAL_off(av); | |
2703 | AvREIFY_on(av); | |
2704 | } | |
6d4ff0d2 | 2705 | #ifndef USE_THREADS |
3280af22 NIS |
2706 | cx->blk_sub.savearray = GvAV(PL_defgv); |
2707 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc(av); | |
6d4ff0d2 | 2708 | #endif /* USE_THREADS */ |
7032098e | 2709 | cx->blk_sub.oldcurpad = PL_curpad; |
6d4ff0d2 | 2710 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2711 | ++MARK; |
2712 | ||
2713 | if (items > AvMAX(av) + 1) { | |
2714 | ary = AvALLOC(av); | |
2715 | if (AvARRAY(av) != ary) { | |
2716 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
2717 | SvPVX(av) = (char*)ary; | |
2718 | } | |
2719 | if (items > AvMAX(av) + 1) { | |
2720 | AvMAX(av) = items - 1; | |
2721 | Renew(ary,items,SV*); | |
2722 | AvALLOC(av) = ary; | |
2723 | SvPVX(av) = (char*)ary; | |
2724 | } | |
2725 | } | |
2726 | Copy(MARK,AvARRAY(av),items,SV*); | |
93965878 | 2727 | AvFILLp(av) = items - 1; |
a0d0e21e LW |
2728 | |
2729 | while (items--) { | |
2730 | if (*MARK) | |
2731 | SvTEMP_off(*MARK); | |
2732 | MARK++; | |
2733 | } | |
2734 | } | |
4a925ff6 GS |
2735 | /* warning must come *after* we fully set up the context |
2736 | * stuff so that __WARN__ handlers can safely dounwind() | |
2737 | * if they want to | |
2738 | */ | |
2739 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION) | |
2740 | && !(PERLDB_SUB && cv == GvCV(PL_DBsub))) | |
2741 | sub_crush_depth(cv); | |
77a005ab | 2742 | #if 0 |
bf49b057 | 2743 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
0f15f207 | 2744 | "%p entersub returning %p\n", thr, CvSTART(cv))); |
77a005ab | 2745 | #endif |
a0d0e21e LW |
2746 | RETURNOP(CvSTART(cv)); |
2747 | } | |
2748 | } | |
2749 | ||
44a8e56a | 2750 | void |
864dbfa3 | 2751 | Perl_sub_crush_depth(pTHX_ CV *cv) |
44a8e56a PP |
2752 | { |
2753 | if (CvANON(cv)) | |
cea2e8a9 | 2754 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on anonymous subroutine"); |
44a8e56a PP |
2755 | else { |
2756 | SV* tmpstr = sv_newmortal(); | |
2757 | gv_efullname3(tmpstr, CvGV(cv), Nullch); | |
cea2e8a9 | 2758 | Perl_warner(aTHX_ WARN_RECURSION, "Deep recursion on subroutine \"%s\"", |
599cee73 | 2759 | SvPVX(tmpstr)); |
44a8e56a PP |
2760 | } |
2761 | } | |
2762 | ||
a0d0e21e LW |
2763 | PP(pp_aelem) |
2764 | { | |
4e35701f | 2765 | djSP; |
a0d0e21e | 2766 | SV** svp; |
748a9306 | 2767 | I32 elem = POPi; |
68dc0745 | 2768 | AV* av = (AV*)POPs; |
533c011a NIS |
2769 | U32 lval = PL_op->op_flags & OPf_MOD; |
2770 | U32 defer = (PL_op->op_private & OPpLVAL_DEFER) && (elem > AvFILL(av)); | |
be6c24e0 | 2771 | SV *sv; |
a0d0e21e | 2772 | |
748a9306 | 2773 | if (elem > 0) |
3280af22 | 2774 | elem -= PL_curcop->cop_arybase; |
a0d0e21e LW |
2775 | if (SvTYPE(av) != SVt_PVAV) |
2776 | RETPUSHUNDEF; | |
68dc0745 | 2777 | svp = av_fetch(av, elem, lval && !defer); |
a0d0e21e | 2778 | if (lval) { |
3280af22 | 2779 | if (!svp || *svp == &PL_sv_undef) { |
68dc0745 PP |
2780 | SV* lv; |
2781 | if (!defer) | |
cea2e8a9 | 2782 | DIE(aTHX_ PL_no_aelem, elem); |
68dc0745 PP |
2783 | lv = sv_newmortal(); |
2784 | sv_upgrade(lv, SVt_PVLV); | |
2785 | LvTYPE(lv) = 'y'; | |
2786 | sv_magic(lv, Nullsv, 'y', Nullch, 0); | |
2787 | LvTARG(lv) = SvREFCNT_inc(av); | |
2788 | LvTARGOFF(lv) = elem; | |
2789 | LvTARGLEN(lv) = 1; | |
2790 | PUSHs(lv); | |
2791 | RETURN; | |
2792 | } | |
533c011a | 2793 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 2794 | save_aelem(av, elem, svp); |
533c011a NIS |
2795 | else if (PL_op->op_private & OPpDEREF) |
2796 | vivify_ref(*svp, PL_op->op_private & OPpDEREF); | |
a0d0e21e | 2797 | } |
3280af22 | 2798 | sv = (svp ? *svp : &PL_sv_undef); |
be6c24e0 GS |
2799 | if (!lval && SvGMAGICAL(sv)) /* see note in pp_helem() */ |
2800 | sv = sv_mortalcopy(sv); | |
2801 | PUSHs(sv); | |
a0d0e21e LW |
2802 | RETURN; |
2803 | } | |
2804 | ||
02a9e968 | 2805 | void |
864dbfa3 | 2806 | Perl_vivify_ref(pTHX_ SV *sv, U32 to_what) |
02a9e968 CS |
2807 | { |
2808 | if (SvGMAGICAL(sv)) | |
2809 | mg_get(sv); | |
2810 | if (!SvOK(sv)) { | |
2811 | if (SvREADONLY(sv)) | |
cea2e8a9 | 2812 | Perl_croak(aTHX_ PL_no_modify); |
5f05dabc PP |
2813 | if (SvTYPE(sv) < SVt_RV) |
2814 | sv_upgrade(sv, SVt_RV); | |
2815 | else if (SvTYPE(sv) >= SVt_PV) { | |
2816 | (void)SvOOK_off(sv); | |
2817 | Safefree(SvPVX(sv)); | |
2818 | SvLEN(sv) = SvCUR(sv) = 0; | |
2819 | } | |
68dc0745 | 2820 | switch (to_what) { |
5f05dabc | 2821 | case OPpDEREF_SV: |
8c52afec | 2822 | SvRV(sv) = NEWSV(355,0); |
5f05dabc PP |
2823 | break; |
2824 | case OPpDEREF_AV: | |
2825 | SvRV(sv) = (SV*)newAV(); | |
2826 | break; | |
2827 | case OPpDEREF_HV: | |
2828 | SvRV(sv) = (SV*)newHV(); | |
2829 | break; | |
2830 | } | |
02a9e968 CS |
2831 | SvROK_on(sv); |
2832 | SvSETMAGIC(sv); | |
2833 | } | |
2834 | } | |
2835 | ||
a0d0e21e LW |
2836 | PP(pp_method) |
2837 | { | |
4e35701f | 2838 | djSP; |
f5d5a27c CS |
2839 | SV* sv = TOPs; |
2840 | ||
2841 | if (SvROK(sv)) { | |
eda383f2 | 2842 | SV* rsv = SvRV(sv); |
f5d5a27c CS |
2843 | if (SvTYPE(rsv) == SVt_PVCV) { |
2844 | SETs(rsv); | |
2845 | RETURN; | |
2846 | } | |
2847 | } | |
2848 | ||
2849 | SETs(method_common(sv, Null(U32*))); | |
2850 | RETURN; | |
2851 | } | |
2852 | ||
2853 | PP(pp_method_named) | |
2854 | { | |
2855 | djSP; | |
2856 | SV* sv = cSVOP->op_sv; | |
2857 | U32 hash = SvUVX(sv); | |
2858 | ||
2859 | XPUSHs(method_common(sv, &hash)); | |
2860 | RETURN; | |
2861 | } | |
2862 | ||
2863 | STATIC SV * | |
2864 | S_method_common(pTHX_ SV* meth, U32* hashp) | |
2865 | { | |
a0d0e21e LW |
2866 | SV* sv; |
2867 | SV* ob; | |
2868 | GV* gv; | |
56304f61 CS |
2869 | HV* stash; |
2870 | char* name; | |
f5d5a27c | 2871 | STRLEN namelen; |
ac91690f CS |
2872 | char* packname; |
2873 | STRLEN packlen; | |
a0d0e21e | 2874 | |
f5d5a27c | 2875 | name = SvPV(meth, namelen); |
3280af22 | 2876 | sv = *(PL_stack_base + TOPMARK + 1); |
f5d5a27c | 2877 | |
16d20bd9 AD |
2878 | if (SvGMAGICAL(sv)) |
2879 | mg_get(sv); | |
a0d0e21e | 2880 | if (SvROK(sv)) |
16d20bd9 | 2881 | ob = (SV*)SvRV(sv); |
a0d0e21e LW |
2882 | else { |
2883 | GV* iogv; | |
a0d0e21e | 2884 | |
56304f61 | 2885 | packname = Nullch; |
a0d0e21e | 2886 | if (!SvOK(sv) || |
56304f61 | 2887 | !(packname = SvPV(sv, packlen)) || |
a0d0e21e LW |
2888 | !(iogv = gv_fetchpv(packname, FALSE, SVt_PVIO)) || |
2889 | !(ob=(SV*)GvIO(iogv))) | |
2890 | { | |
834a4ddd | 2891 | if (!packname || |
7e2040f0 | 2892 | ((*(U8*)packname >= 0xc0 && DO_UTF8(sv)) |
b86a2fa7 | 2893 | ? !isIDFIRST_utf8((U8*)packname) |
834a4ddd LW |
2894 | : !isIDFIRST(*packname) |
2895 | )) | |
2896 | { | |
f5d5a27c CS |
2897 | Perl_croak(aTHX_ "Can't call method \"%s\" %s", name, |
2898 | SvOK(sv) ? "without a package or object reference" | |
2899 | : "on an undefined value"); | |
834a4ddd | 2900 | } |
56304f61 | 2901 | stash = gv_stashpvn(packname, packlen, TRUE); |
ac91690f | 2902 | goto fetch; |
a0d0e21e | 2903 | } |
3280af22 | 2904 | *(PL_stack_base + TOPMARK + 1) = sv_2mortal(newRV((SV*)iogv)); |
a0d0e21e LW |
2905 | } |
2906 | ||
f0d43078 GS |
2907 | if (!ob || !(SvOBJECT(ob) |
2908 | || (SvTYPE(ob) == SVt_PVGV && (ob = (SV*)GvIO((GV*)ob)) | |
2909 | && SvOBJECT(ob)))) | |
2910 | { | |
f5d5a27c CS |
2911 | Perl_croak(aTHX_ "Can't call method \"%s\" on unblessed reference", |
2912 | name); | |
f0d43078 | 2913 | } |
a0d0e21e | 2914 | |
56304f61 | 2915 | stash = SvSTASH(ob); |
a0d0e21e | 2916 | |
ac91690f | 2917 | fetch: |
f5d5a27c CS |
2918 | /* shortcut for simple names */ |
2919 | if (hashp) { | |
2920 | HE* he = hv_fetch_ent(stash, meth, 0, *hashp); | |
2921 | if (he) { | |
2922 | gv = (GV*)HeVAL(he); | |
2923 | if (isGV(gv) && GvCV(gv) && | |
2924 | (!GvCVGEN(gv) || GvCVGEN(gv) == PL_sub_generation)) | |
2925 | return (SV*)GvCV(gv); | |
2926 | } | |
2927 | } | |
2928 | ||
ac91690f | 2929 | gv = gv_fetchmethod(stash, name); |
56304f61 CS |
2930 | if (!gv) { |
2931 | char* leaf = name; | |
2932 | char* sep = Nullch; | |
2933 | char* p; | |
c1899e02 | 2934 | GV* gv; |
56304f61 CS |
2935 | |
2936 | for (p = name; *p; p++) { | |
2937 | if (*p == '\'') | |
2938 | sep = p, leaf = p + 1; | |
2939 | else if (*p == ':' && *(p + 1) == ':') | |
2940 | sep = p, leaf = p + 2; | |
2941 | } | |
2942 | if (!sep || ((sep - name) == 5 && strnEQ(name, "SUPER", 5))) { | |
1d7c1841 | 2943 | packname = sep ? CopSTASHPV(PL_curcop) : HvNAME(stash); |
56304f61 CS |
2944 | packlen = strlen(packname); |
2945 | } | |
2946 | else { | |
2947 | packname = name; | |
2948 | packlen = sep - name; | |
2949 | } | |
c1899e02 GS |
2950 | gv = gv_fetchpv(packname, 0, SVt_PVHV); |
2951 | if (gv && isGV(gv)) { | |
2952 | Perl_croak(aTHX_ | |
2953 | "Can't locate object method \"%s\" via package \"%s\"", | |
2954 | leaf, packname); | |
2955 | } | |
2956 | else { | |
2957 | Perl_croak(aTHX_ | |
f6e565ef | 2958 | "Can't locate object method \"%s\" via package \"%s\"" |
c1899e02 GS |
2959 | " (perhaps you forgot to load \"%s\"?)", |
2960 | leaf, packname, packname); | |
2961 | } | |
56304f61 | 2962 | } |
f5d5a27c | 2963 | return isGV(gv) ? (SV*)GvCV(gv) : (SV*)gv; |
a0d0e21e | 2964 | } |
22239a37 | 2965 | |
51371543 GS |
2966 | #ifdef USE_THREADS |
2967 | static void | |
2968 | unset_cvowner(pTHXo_ void *cvarg) | |
2969 | { | |
2970 | register CV* cv = (CV *) cvarg; | |
2971 | #ifdef DEBUGGING | |
2972 | dTHR; | |
2973 | #endif /* DEBUGGING */ | |
2974 | ||
bf49b057 | 2975 | DEBUG_S((PerlIO_printf(Perl_debug_log, "%p unsetting CvOWNER of %p:%s\n", |
51371543 GS |
2976 | thr, cv, SvPEEK((SV*)cv)))); |
2977 | MUTEX_LOCK(CvMUTEXP(cv)); | |
2978 | DEBUG_S(if (CvDEPTH(cv) != 0) | |
bf49b057 | 2979 | PerlIO_printf(Perl_debug_log, "depth %ld != 0\n", |
51371543 GS |
2980 | CvDEPTH(cv));); |
2981 | assert(thr == CvOWNER(cv)); | |
2982 | CvOWNER(cv) = 0; | |
2983 | MUTEX_UNLOCK(CvMUTEXP(cv)); | |
2984 | SvREFCNT_dec(cv); | |
2985 | } | |
2986 | #endif /* USE_THREADS */ |