Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a0d0e21e LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * Now far ahead the Road has gone, |
13 | * And I must follow, if I can, | |
14 | * Pursuing it with eager feet, | |
15 | * Until it joins some larger way | |
16 | * Where many paths and errands meet. | |
17 | * And whither then? I cannot say. | |
18 | * | |
19 | * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"] | |
a0d0e21e LW |
20 | */ |
21 | ||
166f8a29 DM |
22 | /* This file contains control-oriented pp ("push/pop") functions that |
23 | * execute the opcodes that make up a perl program. A typical pp function | |
24 | * expects to find its arguments on the stack, and usually pushes its | |
25 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
26 | * contains a pointer to the relevant pp_foo() function. | |
27 | * | |
28 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
29 | * alter the flow of control of the program. | |
30 | */ | |
31 | ||
32 | ||
a0d0e21e | 33 | #include "EXTERN.h" |
864dbfa3 | 34 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
35 | #include "perl.h" |
36 | ||
37 | #ifndef WORD_ALIGN | |
dea28490 | 38 | #define WORD_ALIGN sizeof(U32) |
a0d0e21e LW |
39 | #endif |
40 | ||
54310121 | 41 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 42 | |
94fcd414 NC |
43 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
44 | ||
a0d0e21e LW |
45 | PP(pp_wantarray) |
46 | { | |
97aff369 | 47 | dVAR; |
39644a26 | 48 | dSP; |
a0d0e21e LW |
49 | I32 cxix; |
50 | EXTEND(SP, 1); | |
51 | ||
52 | cxix = dopoptosub(cxstack_ix); | |
53 | if (cxix < 0) | |
54 | RETPUSHUNDEF; | |
55 | ||
54310121 | 56 | switch (cxstack[cxix].blk_gimme) { |
57 | case G_ARRAY: | |
a0d0e21e | 58 | RETPUSHYES; |
54310121 | 59 | case G_SCALAR: |
a0d0e21e | 60 | RETPUSHNO; |
54310121 | 61 | default: |
62 | RETPUSHUNDEF; | |
63 | } | |
a0d0e21e LW |
64 | } |
65 | ||
2cd61cdb IZ |
66 | PP(pp_regcreset) |
67 | { | |
97aff369 | 68 | dVAR; |
2cd61cdb IZ |
69 | /* XXXX Should store the old value to allow for tie/overload - and |
70 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 71 | PL_reginterp_cnt = 0; |
0b4182de | 72 | TAINT_NOT; |
2cd61cdb IZ |
73 | return NORMAL; |
74 | } | |
75 | ||
b3eb6a9b GS |
76 | PP(pp_regcomp) |
77 | { | |
97aff369 | 78 | dVAR; |
39644a26 | 79 | dSP; |
a0d0e21e | 80 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 81 | SV *tmpstr; |
84679df5 | 82 | REGEXP *re = NULL; |
bfed75c6 | 83 | |
4b5a0d1c | 84 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 85 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
86 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
87 | if (PL_op->op_flags & OPf_STACKED) { | |
88 | dMARK; | |
89 | SP = MARK; | |
90 | } | |
91 | else | |
92 | (void)POPs; | |
93 | RETURN; | |
94 | } | |
513629ba | 95 | #endif |
d4b87e75 BM |
96 | |
97 | #define tryAMAGICregexp(rx) \ | |
98 | STMT_START { \ | |
6f1401dc | 99 | SvGETMAGIC(rx); \ |
d4b87e75 BM |
100 | if (SvROK(rx) && SvAMAGIC(rx)) { \ |
101 | SV *sv = AMG_CALLun(rx, regexp); \ | |
102 | if (sv) { \ | |
103 | if (SvROK(sv)) \ | |
104 | sv = SvRV(sv); \ | |
105 | if (SvTYPE(sv) != SVt_REGEXP) \ | |
106 | Perl_croak(aTHX_ "Overloaded qr did not return a REGEXP"); \ | |
107 | rx = sv; \ | |
108 | } \ | |
109 | } \ | |
110 | } STMT_END | |
111 | ||
112 | ||
131b3ad0 DM |
113 | if (PL_op->op_flags & OPf_STACKED) { |
114 | /* multiple args; concatentate them */ | |
115 | dMARK; dORIGMARK; | |
116 | tmpstr = PAD_SV(ARGTARG); | |
76f68e9b | 117 | sv_setpvs(tmpstr, ""); |
131b3ad0 | 118 | while (++MARK <= SP) { |
d4b87e75 | 119 | SV *msv = *MARK; |
79a8d529 | 120 | SV *sv; |
d4b87e75 | 121 | |
79a8d529 | 122 | tryAMAGICregexp(msv); |
d4b87e75 | 123 | |
79a8d529 DM |
124 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) && |
125 | (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign))) | |
126 | { | |
127 | sv_setsv(tmpstr, sv); | |
128 | continue; | |
131b3ad0 | 129 | } |
d4b87e75 | 130 | sv_catsv(tmpstr, msv); |
131b3ad0 DM |
131 | } |
132 | SvSETMAGIC(tmpstr); | |
133 | SP = ORIGMARK; | |
134 | } | |
d4b87e75 | 135 | else { |
131b3ad0 | 136 | tmpstr = POPs; |
d4b87e75 BM |
137 | tryAMAGICregexp(tmpstr); |
138 | } | |
139 | ||
140 | #undef tryAMAGICregexp | |
513629ba | 141 | |
b3eb6a9b | 142 | if (SvROK(tmpstr)) { |
d8f6592e | 143 | SV * const sv = SvRV(tmpstr); |
5c35adbb | 144 | if (SvTYPE(sv) == SVt_REGEXP) |
d2f13c59 | 145 | re = (REGEXP*) sv; |
c277df42 | 146 | } |
d4b87e75 BM |
147 | else if (SvTYPE(tmpstr) == SVt_REGEXP) |
148 | re = (REGEXP*) tmpstr; | |
149 | ||
5c35adbb | 150 | if (re) { |
69dc4b30 FC |
151 | /* The match's LHS's get-magic might need to access this op's reg- |
152 | exp (as is sometimes the case with $'; see bug 70764). So we | |
153 | must call get-magic now before we replace the regexp. Hopeful- | |
154 | ly this hack can be replaced with the approach described at | |
155 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03 | |
156 | /msg122415.html some day. */ | |
455d9033 FC |
157 | if(pm->op_type == OP_MATCH) { |
158 | SV *lhs; | |
159 | const bool was_tainted = PL_tainted; | |
160 | if (pm->op_flags & OPf_STACKED) | |
69dc4b30 | 161 | lhs = TOPs; |
455d9033 FC |
162 | else if (pm->op_private & OPpTARGET_MY) |
163 | lhs = PAD_SV(pm->op_targ); | |
164 | else lhs = DEFSV; | |
165 | SvGETMAGIC(lhs); | |
166 | /* Restore the previous value of PL_tainted (which may have been | |
167 | modified by get-magic), to avoid incorrectly setting the | |
168 | RXf_TAINTED flag further down. */ | |
169 | PL_tainted = was_tainted; | |
170 | } | |
69dc4b30 | 171 | |
f0826785 | 172 | re = reg_temp_copy(NULL, re); |
aaa362c4 | 173 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 174 | PM_SETRE(pm, re); |
c277df42 IZ |
175 | } |
176 | else { | |
f3ec07c7 DM |
177 | STRLEN len = 0; |
178 | const char *t = SvOK(tmpstr) ? SvPV_nomg_const(tmpstr, len) : ""; | |
179 | ||
c737faaf | 180 | re = PM_GETRE(pm); |
14a49a24 | 181 | assert (re != (REGEXP*) &PL_sv_undef); |
c277df42 | 182 | |
20408e3c | 183 | /* Check against the last compiled regexp. */ |
a11c8683 | 184 | if (!re || !RX_PRECOMP(re) || RX_PRELEN(re) != len || |
220fc49f | 185 | memNE(RX_PRECOMP(re), t, len)) |
85aff577 | 186 | { |
07bc277f | 187 | const regexp_engine *eng = re ? RX_ENGINE(re) : NULL; |
c737faaf | 188 | U32 pm_flags = pm->op_pmflags & PMf_COMPILETIME; |
d8f6592e AL |
189 | if (re) { |
190 | ReREFCNT_dec(re); | |
14a49a24 NC |
191 | #ifdef USE_ITHREADS |
192 | PM_SETRE(pm, (REGEXP*) &PL_sv_undef); | |
193 | #else | |
4608196e | 194 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
14a49a24 | 195 | #endif |
1e2e3d02 YO |
196 | } else if (PL_curcop->cop_hints_hash) { |
197 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
198 | "regcomp", 7, 0, 0); | |
199 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
200 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 201 | } |
664e119d | 202 | |
533c011a | 203 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 204 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 205 | |
b9ad30b4 NC |
206 | if (DO_UTF8(tmpstr)) { |
207 | assert (SvUTF8(tmpstr)); | |
208 | } else if (SvUTF8(tmpstr)) { | |
209 | /* Not doing UTF-8, despite what the SV says. Is this only if | |
210 | we're trapped in use 'bytes'? */ | |
211 | /* Make a copy of the octet sequence, but without the flag on, | |
212 | as the compiler now honours the SvUTF8 flag on tmpstr. */ | |
213 | STRLEN len; | |
214 | const char *const p = SvPV(tmpstr, len); | |
215 | tmpstr = newSVpvn_flags(p, len, SVs_TEMP); | |
216 | } | |
f3ec07c7 DM |
217 | else if (SvAMAGIC(tmpstr)) { |
218 | /* make a copy to avoid extra stringifies */ | |
0479a84a | 219 | tmpstr = newSVpvn_flags(t, len, SVs_TEMP | SvUTF8(tmpstr)); |
f3ec07c7 | 220 | } |
c737faaf | 221 | |
5a8697a7 | 222 | if (eng) |
3ab4a224 | 223 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); |
5a8697a7 | 224 | else |
3ab4a224 | 225 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); |
c737faaf | 226 | |
f86aaa29 | 227 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 228 | inside tie/overload accessors. */ |
c277df42 | 229 | } |
4633a7c4 | 230 | } |
c737faaf YO |
231 | |
232 | re = PM_GETRE(pm); | |
a0d0e21e | 233 | |
72311751 | 234 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
235 | if (PL_tainting) { |
236 | if (PL_tainted) | |
07bc277f | 237 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
72311751 | 238 | else |
07bc277f | 239 | RX_EXTFLAGS(re) &= ~RXf_TAINTED; |
72311751 GS |
240 | } |
241 | #endif | |
242 | ||
220fc49f | 243 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 244 | pm = PL_curpm; |
a0d0e21e | 245 | |
c737faaf YO |
246 | |
247 | #if !defined(USE_ITHREADS) | |
248 | /* can't change the optree at runtime either */ | |
249 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 250 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 251 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 252 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 253 | } |
c737faaf | 254 | #endif |
a0d0e21e LW |
255 | RETURN; |
256 | } | |
257 | ||
258 | PP(pp_substcont) | |
259 | { | |
97aff369 | 260 | dVAR; |
39644a26 | 261 | dSP; |
c09156bb | 262 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
263 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
264 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
265 | register char *s = cx->sb_s; |
266 | register char *m = cx->sb_m; | |
267 | char *orig = cx->sb_orig; | |
901017d6 | 268 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 269 | SV *nsv = NULL; |
988e6e7e | 270 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
271 | |
272 | PERL_ASYNC_CHECK(); | |
273 | ||
988e6e7e | 274 | if(old != rx) { |
bfed75c6 | 275 | if(old) |
988e6e7e | 276 | ReREFCNT_dec(old); |
d6106309 | 277 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
278 | } |
279 | ||
d9f97599 | 280 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 281 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 282 | |
a0d0e21e | 283 | if (cx->sb_iters++) { |
a3b680e6 | 284 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 285 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 286 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 287 | |
447ee134 DM |
288 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
289 | ||
48c036b1 GS |
290 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
291 | cx->sb_rxtainted |= 2; | |
447ee134 | 292 | sv_catsv_nomg(dstr, POPs); |
2c296965 YO |
293 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
294 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
295 | |
296 | /* Are we done */ | |
2c296965 YO |
297 | if (CxONCE(cx) || s < orig || |
298 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
299 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
300 | ((cx->sb_rflags & REXEC_COPY_STR) | |
301 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
302 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 303 | { |
823a54a3 | 304 | SV * const targ = cx->sb_targ; |
748a9306 | 305 | |
078c425b JH |
306 | assert(cx->sb_strend >= s); |
307 | if(cx->sb_strend > s) { | |
308 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
309 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
310 | else | |
311 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
312 | } | |
48c036b1 | 313 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 314 | |
f8c7b90f | 315 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
316 | if (SvIsCOW(targ)) { |
317 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
318 | } else | |
319 | #endif | |
320 | { | |
8bd4d4c5 | 321 | SvPV_free(targ); |
ed252734 | 322 | } |
f880fe2f | 323 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
324 | SvCUR_set(targ, SvCUR(dstr)); |
325 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
326 | if (DO_UTF8(dstr)) |
327 | SvUTF8_on(targ); | |
6136c704 | 328 | SvPV_set(dstr, NULL); |
48c036b1 GS |
329 | |
330 | TAINT_IF(cx->sb_rxtainted & 1); | |
4f4d7508 DC |
331 | if (pm->op_pmflags & PMf_NONDESTRUCT) |
332 | PUSHs(targ); | |
333 | else | |
334 | mPUSHi(saviters - 1); | |
48c036b1 | 335 | |
ffc61ed2 | 336 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 337 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 338 | SvSETMAGIC(targ); |
9212bbba | 339 | SvTAINT(targ); |
5cd24f17 | 340 | |
4633a7c4 | 341 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
342 | POPSUBST(cx); |
343 | RETURNOP(pm->op_next); | |
344 | } | |
8e5e9ebe | 345 | cx->sb_iters = saviters; |
a0d0e21e | 346 | } |
07bc277f | 347 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
348 | m = s; |
349 | s = orig; | |
07bc277f | 350 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
351 | s = orig + (m - s); |
352 | cx->sb_strend = s + (cx->sb_strend - m); | |
353 | } | |
07bc277f | 354 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 355 | if (m > s) { |
bfed75c6 | 356 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
357 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
358 | else | |
359 | sv_catpvn(dstr, s, m-s); | |
360 | } | |
07bc277f | 361 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 362 | { /* Update the pos() information. */ |
44f8325f | 363 | SV * const sv = cx->sb_targ; |
084916e3 | 364 | MAGIC *mg; |
7a7f3e45 | 365 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 366 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 367 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 368 | if (SvIsCOW(sv)) |
d83f0a82 NC |
369 | sv_force_normal_flags(sv, 0); |
370 | #endif | |
371 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
372 | NULL, 0); | |
084916e3 | 373 | } |
ce474962 | 374 | mg->mg_len = m - orig; |
084916e3 | 375 | } |
988e6e7e | 376 | if (old != rx) |
d6106309 | 377 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
378 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
379 | rxres_save(&cx->sb_rxres, rx); | |
29f2e912 | 380 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
381 | } |
382 | ||
c90c0ff4 | 383 | void |
864dbfa3 | 384 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 385 | { |
386 | UV *p = (UV*)*rsp; | |
387 | U32 i; | |
7918f24d NC |
388 | |
389 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 390 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 391 | |
07bc277f | 392 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 393 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 394 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 395 | #else |
07bc277f | 396 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 397 | #endif |
c90c0ff4 | 398 | if (!p) |
a02a5408 | 399 | Newx(p, i, UV); |
c90c0ff4 | 400 | else |
401 | Renew(p, i, UV); | |
402 | *rsp = (void*)p; | |
403 | } | |
404 | ||
07bc277f | 405 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 406 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 407 | |
f8c7b90f | 408 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
409 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
410 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
411 | #endif |
412 | ||
07bc277f | 413 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 414 | |
07bc277f NC |
415 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
416 | *p++ = (UV)RX_SUBLEN(rx); | |
417 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
418 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
419 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 420 | } |
421 | } | |
422 | ||
9c105995 NC |
423 | static void |
424 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 425 | { |
426 | UV *p = (UV*)*rsp; | |
427 | U32 i; | |
7918f24d NC |
428 | |
429 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 430 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 431 | |
ed252734 | 432 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 433 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 434 | *p++ = 0; |
435 | ||
f8c7b90f | 436 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
437 | if (RX_SAVED_COPY(rx)) |
438 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
439 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
440 | *p++ = 0; |
441 | #endif | |
442 | ||
07bc277f | 443 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 444 | |
07bc277f NC |
445 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
446 | RX_SUBLEN(rx) = (I32)(*p++); | |
447 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
448 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
449 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 450 | } |
451 | } | |
452 | ||
9c105995 NC |
453 | static void |
454 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 455 | { |
44f8325f | 456 | UV * const p = (UV*)*rsp; |
7918f24d NC |
457 | |
458 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 459 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 460 | |
461 | if (p) { | |
94010e71 NC |
462 | #ifdef PERL_POISON |
463 | void *tmp = INT2PTR(char*,*p); | |
464 | Safefree(tmp); | |
465 | if (*p) | |
7e337ee0 | 466 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 467 | #else |
56431972 | 468 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 469 | #endif |
f8c7b90f | 470 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
471 | if (p[1]) { |
472 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
473 | } | |
474 | #endif | |
c90c0ff4 | 475 | Safefree(p); |
4608196e | 476 | *rsp = NULL; |
c90c0ff4 | 477 | } |
478 | } | |
479 | ||
a0d0e21e LW |
480 | PP(pp_formline) |
481 | { | |
97aff369 | 482 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 483 | register SV * const tmpForm = *++MARK; |
dea28490 | 484 | register U32 *fpc; |
a0d0e21e | 485 | register char *t; |
245d4a47 | 486 | const char *f; |
a0d0e21e | 487 | register I32 arg; |
c445ea15 AL |
488 | register SV *sv = NULL; |
489 | const char *item = NULL; | |
9c5ffd7c JH |
490 | I32 itemsize = 0; |
491 | I32 fieldsize = 0; | |
a0d0e21e | 492 | I32 lines = 0; |
c445ea15 AL |
493 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
494 | const char *chophere = NULL; | |
495 | char *linemark = NULL; | |
65202027 | 496 | NV value; |
9c5ffd7c | 497 | bool gotsome = FALSE; |
a0d0e21e | 498 | STRLEN len; |
823a54a3 | 499 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 500 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
501 | bool item_is_utf8 = FALSE; |
502 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 503 | SV * nsv = NULL; |
cbbf8932 | 504 | OP * parseres = NULL; |
bfed75c6 | 505 | const char *fmt; |
a0d0e21e | 506 | |
76e3520e | 507 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
508 | if (SvREADONLY(tmpForm)) { |
509 | SvREADONLY_off(tmpForm); | |
a1b95068 | 510 | parseres = doparseform(tmpForm); |
445b3f51 GS |
511 | SvREADONLY_on(tmpForm); |
512 | } | |
513 | else | |
a1b95068 WL |
514 | parseres = doparseform(tmpForm); |
515 | if (parseres) | |
516 | return parseres; | |
a0d0e21e | 517 | } |
3280af22 | 518 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
519 | if (DO_UTF8(PL_formtarget)) |
520 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 521 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 522 | t += len; |
245d4a47 | 523 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 524 | /* need to jump to the next word */ |
245d4a47 | 525 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
526 | |
527 | for (;;) { | |
528 | DEBUG_f( { | |
bfed75c6 | 529 | const char *name = "???"; |
a0d0e21e LW |
530 | arg = -1; |
531 | switch (*fpc) { | |
532 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
533 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
534 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
535 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
536 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
537 | ||
538 | case FF_CHECKNL: name = "CHECKNL"; break; | |
539 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
540 | case FF_SPACE: name = "SPACE"; break; | |
541 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
542 | case FF_ITEM: name = "ITEM"; break; | |
543 | case FF_CHOP: name = "CHOP"; break; | |
544 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
545 | case FF_NEWLINE: name = "NEWLINE"; break; | |
546 | case FF_MORE: name = "MORE"; break; | |
547 | case FF_LINEMARK: name = "LINEMARK"; break; | |
548 | case FF_END: name = "END"; break; | |
bfed75c6 | 549 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 550 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
551 | } |
552 | if (arg >= 0) | |
bf49b057 | 553 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 554 | else |
bf49b057 | 555 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 556 | } ); |
a0d0e21e LW |
557 | switch (*fpc++) { |
558 | case FF_LINEMARK: | |
559 | linemark = t; | |
a0d0e21e LW |
560 | lines++; |
561 | gotsome = FALSE; | |
562 | break; | |
563 | ||
564 | case FF_LITERAL: | |
565 | arg = *fpc++; | |
1bd51a4c | 566 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 567 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
568 | *t = '\0'; |
569 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
570 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 571 | f += arg; |
1bd51a4c IH |
572 | break; |
573 | } | |
574 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 575 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 576 | *t = '\0'; |
7bf79863 | 577 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
578 | t = SvEND(PL_formtarget); |
579 | targ_is_utf8 = TRUE; | |
580 | } | |
a0d0e21e LW |
581 | while (arg--) |
582 | *t++ = *f++; | |
583 | break; | |
584 | ||
585 | case FF_SKIP: | |
586 | f += *fpc++; | |
587 | break; | |
588 | ||
589 | case FF_FETCH: | |
590 | arg = *fpc++; | |
591 | f += arg; | |
592 | fieldsize = arg; | |
593 | ||
594 | if (MARK < SP) | |
595 | sv = *++MARK; | |
596 | else { | |
3280af22 | 597 | sv = &PL_sv_no; |
a2a5de95 | 598 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
599 | } |
600 | break; | |
601 | ||
602 | case FF_CHECKNL: | |
5a34cab7 NC |
603 | { |
604 | const char *send; | |
605 | const char *s = item = SvPV_const(sv, len); | |
606 | itemsize = len; | |
607 | if (DO_UTF8(sv)) { | |
608 | itemsize = sv_len_utf8(sv); | |
609 | if (itemsize != (I32)len) { | |
610 | I32 itembytes; | |
611 | if (itemsize > fieldsize) { | |
612 | itemsize = fieldsize; | |
613 | itembytes = itemsize; | |
614 | sv_pos_u2b(sv, &itembytes, 0); | |
615 | } | |
616 | else | |
617 | itembytes = len; | |
618 | send = chophere = s + itembytes; | |
619 | while (s < send) { | |
620 | if (*s & ~31) | |
621 | gotsome = TRUE; | |
622 | else if (*s == '\n') | |
623 | break; | |
624 | s++; | |
625 | } | |
626 | item_is_utf8 = TRUE; | |
627 | itemsize = s - item; | |
628 | sv_pos_b2u(sv, &itemsize); | |
629 | break; | |
a0ed51b3 | 630 | } |
a0ed51b3 | 631 | } |
5a34cab7 NC |
632 | item_is_utf8 = FALSE; |
633 | if (itemsize > fieldsize) | |
634 | itemsize = fieldsize; | |
635 | send = chophere = s + itemsize; | |
636 | while (s < send) { | |
637 | if (*s & ~31) | |
638 | gotsome = TRUE; | |
639 | else if (*s == '\n') | |
640 | break; | |
641 | s++; | |
642 | } | |
643 | itemsize = s - item; | |
644 | break; | |
a0ed51b3 | 645 | } |
a0d0e21e LW |
646 | |
647 | case FF_CHECKCHOP: | |
5a34cab7 NC |
648 | { |
649 | const char *s = item = SvPV_const(sv, len); | |
650 | itemsize = len; | |
651 | if (DO_UTF8(sv)) { | |
652 | itemsize = sv_len_utf8(sv); | |
653 | if (itemsize != (I32)len) { | |
654 | I32 itembytes; | |
655 | if (itemsize <= fieldsize) { | |
656 | const char *send = chophere = s + itemsize; | |
657 | while (s < send) { | |
658 | if (*s == '\r') { | |
659 | itemsize = s - item; | |
a0ed51b3 | 660 | chophere = s; |
a0ed51b3 | 661 | break; |
5a34cab7 NC |
662 | } |
663 | if (*s++ & ~31) | |
a0ed51b3 | 664 | gotsome = TRUE; |
a0ed51b3 | 665 | } |
a0ed51b3 | 666 | } |
5a34cab7 NC |
667 | else { |
668 | const char *send; | |
669 | itemsize = fieldsize; | |
670 | itembytes = itemsize; | |
671 | sv_pos_u2b(sv, &itembytes, 0); | |
672 | send = chophere = s + itembytes; | |
673 | while (s < send || (s == send && isSPACE(*s))) { | |
674 | if (isSPACE(*s)) { | |
675 | if (chopspace) | |
676 | chophere = s; | |
677 | if (*s == '\r') | |
678 | break; | |
679 | } | |
680 | else { | |
681 | if (*s & ~31) | |
682 | gotsome = TRUE; | |
683 | if (strchr(PL_chopset, *s)) | |
684 | chophere = s + 1; | |
685 | } | |
686 | s++; | |
687 | } | |
688 | itemsize = chophere - item; | |
689 | sv_pos_b2u(sv, &itemsize); | |
690 | } | |
691 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
692 | break; |
693 | } | |
a0d0e21e | 694 | } |
5a34cab7 NC |
695 | item_is_utf8 = FALSE; |
696 | if (itemsize <= fieldsize) { | |
697 | const char *const send = chophere = s + itemsize; | |
698 | while (s < send) { | |
699 | if (*s == '\r') { | |
700 | itemsize = s - item; | |
a0d0e21e | 701 | chophere = s; |
a0d0e21e | 702 | break; |
5a34cab7 NC |
703 | } |
704 | if (*s++ & ~31) | |
a0d0e21e | 705 | gotsome = TRUE; |
a0d0e21e | 706 | } |
a0d0e21e | 707 | } |
5a34cab7 NC |
708 | else { |
709 | const char *send; | |
710 | itemsize = fieldsize; | |
711 | send = chophere = s + itemsize; | |
712 | while (s < send || (s == send && isSPACE(*s))) { | |
713 | if (isSPACE(*s)) { | |
714 | if (chopspace) | |
715 | chophere = s; | |
716 | if (*s == '\r') | |
717 | break; | |
718 | } | |
719 | else { | |
720 | if (*s & ~31) | |
721 | gotsome = TRUE; | |
722 | if (strchr(PL_chopset, *s)) | |
723 | chophere = s + 1; | |
724 | } | |
725 | s++; | |
726 | } | |
727 | itemsize = chophere - item; | |
728 | } | |
729 | break; | |
a0d0e21e | 730 | } |
a0d0e21e LW |
731 | |
732 | case FF_SPACE: | |
733 | arg = fieldsize - itemsize; | |
734 | if (arg) { | |
735 | fieldsize -= arg; | |
736 | while (arg-- > 0) | |
737 | *t++ = ' '; | |
738 | } | |
739 | break; | |
740 | ||
741 | case FF_HALFSPACE: | |
742 | arg = fieldsize - itemsize; | |
743 | if (arg) { | |
744 | arg /= 2; | |
745 | fieldsize -= arg; | |
746 | while (arg-- > 0) | |
747 | *t++ = ' '; | |
748 | } | |
749 | break; | |
750 | ||
751 | case FF_ITEM: | |
5a34cab7 NC |
752 | { |
753 | const char *s = item; | |
754 | arg = itemsize; | |
755 | if (item_is_utf8) { | |
756 | if (!targ_is_utf8) { | |
757 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
758 | *t = '\0'; | |
7bf79863 KW |
759 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
760 | fudge + 1); | |
5a34cab7 NC |
761 | t = SvEND(PL_formtarget); |
762 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 763 | } |
5a34cab7 NC |
764 | while (arg--) { |
765 | if (UTF8_IS_CONTINUED(*s)) { | |
766 | STRLEN skip = UTF8SKIP(s); | |
767 | switch (skip) { | |
768 | default: | |
769 | Move(s,t,skip,char); | |
770 | s += skip; | |
771 | t += skip; | |
772 | break; | |
773 | case 7: *t++ = *s++; | |
774 | case 6: *t++ = *s++; | |
775 | case 5: *t++ = *s++; | |
776 | case 4: *t++ = *s++; | |
777 | case 3: *t++ = *s++; | |
778 | case 2: *t++ = *s++; | |
779 | case 1: *t++ = *s++; | |
780 | } | |
781 | } | |
782 | else { | |
783 | if ( !((*t++ = *s++) & ~31) ) | |
784 | t[-1] = ' '; | |
785 | } | |
a0ed51b3 | 786 | } |
5a34cab7 | 787 | break; |
a0ed51b3 | 788 | } |
5a34cab7 NC |
789 | if (targ_is_utf8 && !item_is_utf8) { |
790 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
791 | *t = '\0'; | |
792 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
793 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 794 | #ifdef EBCDIC |
901017d6 | 795 | const int ch = *t; |
5a34cab7 | 796 | if (iscntrl(ch)) |
78da4d13 | 797 | #else |
5a34cab7 | 798 | if (!(*t & ~31)) |
78da4d13 | 799 | #endif |
5a34cab7 NC |
800 | *t = ' '; |
801 | } | |
802 | break; | |
78da4d13 | 803 | } |
5a34cab7 | 804 | while (arg--) { |
9d116dd7 | 805 | #ifdef EBCDIC |
901017d6 | 806 | const int ch = *t++ = *s++; |
5a34cab7 | 807 | if (iscntrl(ch)) |
a0d0e21e | 808 | #else |
5a34cab7 | 809 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 810 | #endif |
5a34cab7 NC |
811 | t[-1] = ' '; |
812 | } | |
813 | break; | |
a0d0e21e | 814 | } |
a0d0e21e LW |
815 | |
816 | case FF_CHOP: | |
5a34cab7 NC |
817 | { |
818 | const char *s = chophere; | |
819 | if (chopspace) { | |
af68e756 | 820 | while (isSPACE(*s)) |
5a34cab7 NC |
821 | s++; |
822 | } | |
823 | sv_chop(sv,s); | |
824 | SvSETMAGIC(sv); | |
825 | break; | |
a0d0e21e | 826 | } |
a0d0e21e | 827 | |
a1b95068 WL |
828 | case FF_LINESNGL: |
829 | chopspace = 0; | |
a0d0e21e | 830 | case FF_LINEGLOB: |
5a34cab7 | 831 | { |
e32383e2 | 832 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 833 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 834 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 835 | itemsize = len; |
5a34cab7 | 836 | if (itemsize) { |
e8e72d41 | 837 | STRLEN to_copy = itemsize; |
5a34cab7 | 838 | const char *const send = s + len; |
35c6393c | 839 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
840 | U8 *tmp = NULL; |
841 | ||
5a34cab7 NC |
842 | gotsome = TRUE; |
843 | chophere = s + itemsize; | |
844 | while (s < send) { | |
845 | if (*s++ == '\n') { | |
846 | if (oneline) { | |
e8e72d41 | 847 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
848 | chophere = s; |
849 | break; | |
850 | } else { | |
851 | if (s == send) { | |
852 | itemsize--; | |
e8e72d41 | 853 | to_copy--; |
5a34cab7 NC |
854 | } else |
855 | lines++; | |
856 | } | |
1bd51a4c | 857 | } |
a0d0e21e | 858 | } |
e8e72d41 | 859 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 860 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
861 | SvCUR_set(PL_formtarget, |
862 | t - SvPVX_const(PL_formtarget)); | |
863 | } else { | |
864 | if (item_is_utf8 && !targ_is_utf8) { | |
865 | /* Upgrade targ to UTF8, and then we reduce it to | |
866 | a problem we have a simple solution for. */ | |
867 | SvCUR_set(PL_formtarget, | |
868 | t - SvPVX_const(PL_formtarget)); | |
869 | targ_is_utf8 = TRUE; | |
870 | /* Don't need get magic. */ | |
7bf79863 | 871 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
872 | } else { |
873 | SvCUR_set(PL_formtarget, | |
874 | t - SvPVX_const(PL_formtarget)); | |
875 | } | |
e8e72d41 NC |
876 | |
877 | /* Easy. They agree. */ | |
878 | assert (item_is_utf8 == targ_is_utf8); | |
879 | } | |
880 | SvGROW(PL_formtarget, | |
881 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 882 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
883 | |
884 | Copy(source, t, to_copy, char); | |
885 | t += to_copy; | |
886 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 887 | if (item_is_utf8) { |
e8e72d41 NC |
888 | if (SvGMAGICAL(sv)) { |
889 | /* Mustn't call sv_pos_b2u() as it does a second | |
890 | mg_get(). Is this a bug? Do we need a _flags() | |
891 | variant? */ | |
892 | itemsize = utf8_length(source, source + itemsize); | |
893 | } else { | |
894 | sv_pos_b2u(sv, &itemsize); | |
895 | } | |
896 | assert(!tmp); | |
897 | } else if (tmp) { | |
898 | Safefree(tmp); | |
f3f2f1a3 | 899 | } |
a0d0e21e | 900 | } |
5a34cab7 | 901 | break; |
a0d0e21e | 902 | } |
a0d0e21e | 903 | |
a1b95068 WL |
904 | case FF_0DECIMAL: |
905 | arg = *fpc++; | |
906 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
907 | fmt = (const char *) |
908 | ((arg & 256) ? | |
909 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 910 | #else |
10edeb5d JH |
911 | fmt = (const char *) |
912 | ((arg & 256) ? | |
913 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
914 | #endif |
915 | goto ff_dec; | |
a0d0e21e | 916 | case FF_DECIMAL: |
a0d0e21e | 917 | arg = *fpc++; |
65202027 | 918 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
919 | fmt = (const char *) |
920 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 921 | #else |
10edeb5d JH |
922 | fmt = (const char *) |
923 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 924 | #endif |
a1b95068 | 925 | ff_dec: |
784707d5 JP |
926 | /* If the field is marked with ^ and the value is undefined, |
927 | blank it out. */ | |
784707d5 JP |
928 | if ((arg & 512) && !SvOK(sv)) { |
929 | arg = fieldsize; | |
930 | while (arg--) | |
931 | *t++ = ' '; | |
932 | break; | |
933 | } | |
934 | gotsome = TRUE; | |
935 | value = SvNV(sv); | |
a1b95068 | 936 | /* overflow evidence */ |
bfed75c6 | 937 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
938 | arg = fieldsize; |
939 | while (arg--) | |
940 | *t++ = '#'; | |
941 | break; | |
942 | } | |
784707d5 JP |
943 | /* Formats aren't yet marked for locales, so assume "yes". */ |
944 | { | |
945 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 946 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
947 | RESTORE_NUMERIC_STANDARD(); |
948 | } | |
949 | t += fieldsize; | |
950 | break; | |
a1b95068 | 951 | |
a0d0e21e LW |
952 | case FF_NEWLINE: |
953 | f++; | |
954 | while (t-- > linemark && *t == ' ') ; | |
955 | t++; | |
956 | *t++ = '\n'; | |
957 | break; | |
958 | ||
959 | case FF_BLANK: | |
960 | arg = *fpc++; | |
961 | if (gotsome) { | |
962 | if (arg) { /* repeat until fields exhausted? */ | |
963 | *t = '\0'; | |
b15aece3 | 964 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 965 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
966 | if (targ_is_utf8) |
967 | SvUTF8_on(PL_formtarget); | |
3280af22 | 968 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
969 | SP = ORIGMARK; |
970 | RETURNOP(cLISTOP->op_first); | |
971 | } | |
972 | } | |
973 | else { | |
974 | t = linemark; | |
975 | lines--; | |
976 | } | |
977 | break; | |
978 | ||
979 | case FF_MORE: | |
5a34cab7 NC |
980 | { |
981 | const char *s = chophere; | |
982 | const char *send = item + len; | |
983 | if (chopspace) { | |
af68e756 | 984 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 985 | s++; |
a0d0e21e | 986 | } |
5a34cab7 NC |
987 | if (s < send) { |
988 | char *s1; | |
989 | arg = fieldsize - itemsize; | |
990 | if (arg) { | |
991 | fieldsize -= arg; | |
992 | while (arg-- > 0) | |
993 | *t++ = ' '; | |
994 | } | |
995 | s1 = t - 3; | |
996 | if (strnEQ(s1," ",3)) { | |
997 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
998 | s1--; | |
999 | } | |
1000 | *s1++ = '.'; | |
1001 | *s1++ = '.'; | |
1002 | *s1++ = '.'; | |
a0d0e21e | 1003 | } |
5a34cab7 | 1004 | break; |
a0d0e21e | 1005 | } |
a0d0e21e LW |
1006 | case FF_END: |
1007 | *t = '\0'; | |
b15aece3 | 1008 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
1009 | if (targ_is_utf8) |
1010 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1011 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
1012 | SP = ORIGMARK; |
1013 | RETPUSHYES; | |
1014 | } | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | PP(pp_grepstart) | |
1019 | { | |
27da23d5 | 1020 | dVAR; dSP; |
a0d0e21e LW |
1021 | SV *src; |
1022 | ||
3280af22 | 1023 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1024 | (void)POPMARK; |
54310121 | 1025 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1026 | mXPUSHi(0); |
533c011a | 1027 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1028 | } |
3280af22 | 1029 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
1030 | pp_pushmark(); /* push dst */ |
1031 | pp_pushmark(); /* push src */ | |
d343c3ef | 1032 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1033 | |
1034 | SAVETMPS; | |
59f00321 RGS |
1035 | if (PL_op->op_private & OPpGREP_LEX) |
1036 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1037 | else | |
1038 | SAVE_DEFSV; | |
d343c3ef | 1039 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1040 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1041 | |
3280af22 | 1042 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1043 | SvTEMP_off(src); |
59f00321 RGS |
1044 | if (PL_op->op_private & OPpGREP_LEX) |
1045 | PAD_SVl(PL_op->op_targ) = src; | |
1046 | else | |
414bf5ae | 1047 | DEFSV_set(src); |
a0d0e21e LW |
1048 | |
1049 | PUTBACK; | |
533c011a | 1050 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 1051 | pp_pushmark(); /* push top */ |
533c011a | 1052 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1053 | } |
1054 | ||
a0d0e21e LW |
1055 | PP(pp_mapwhile) |
1056 | { | |
27da23d5 | 1057 | dVAR; dSP; |
f54cb97a | 1058 | const I32 gimme = GIMME_V; |
544f3153 | 1059 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1060 | I32 count; |
1061 | I32 shift; | |
1062 | SV** src; | |
ac27b0f5 | 1063 | SV** dst; |
a0d0e21e | 1064 | |
544f3153 | 1065 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1066 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1067 | |
1068 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1069 | if (items && gimme != G_VOID) { |
544f3153 GS |
1070 | /* might need to make room back there first */ |
1071 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1072 | /* XXX this implementation is very pessimal because the stack | |
1073 | * is repeatedly extended for every set of items. Is possible | |
1074 | * to do this without any stack extension or copying at all | |
1075 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1076 | * (like foreach does). --gsar */ |
544f3153 GS |
1077 | |
1078 | /* everything in the stack after the destination list moves | |
1079 | * towards the end the stack by the amount of room needed */ | |
1080 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1081 | ||
1082 | /* items to shift up (accounting for the moved source pointer) */ | |
1083 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1084 | |
1085 | /* This optimization is by Ben Tilly and it does | |
1086 | * things differently from what Sarathy (gsar) | |
1087 | * is describing. The downside of this optimization is | |
1088 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1089 | * to the Perl stack, but on the other hand this | |
1090 | * shouldn't be a problem. If Sarathy's idea gets | |
1091 | * implemented, this optimization should become | |
1092 | * irrelevant. --jhi */ | |
1093 | if (shift < count) | |
1094 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1095 | |
924508f0 GS |
1096 | EXTEND(SP,shift); |
1097 | src = SP; | |
1098 | dst = (SP += shift); | |
3280af22 NIS |
1099 | PL_markstack_ptr[-1] += shift; |
1100 | *PL_markstack_ptr += shift; | |
544f3153 | 1101 | while (count--) |
a0d0e21e LW |
1102 | *dst-- = *src--; |
1103 | } | |
544f3153 | 1104 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1105 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1106 | if (gimme == G_ARRAY) { |
1107 | while (items-- > 0) | |
1108 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1109 | } | |
bfed75c6 | 1110 | else { |
22023b26 TP |
1111 | /* scalar context: we don't care about which values map returns |
1112 | * (we use undef here). And so we certainly don't want to do mortal | |
1113 | * copies of meaningless values. */ | |
1114 | while (items-- > 0) { | |
b988aa42 | 1115 | (void)POPs; |
22023b26 TP |
1116 | *dst-- = &PL_sv_undef; |
1117 | } | |
1118 | } | |
a0d0e21e | 1119 | } |
d343c3ef | 1120 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1121 | |
1122 | /* All done yet? */ | |
3280af22 | 1123 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1124 | |
1125 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1126 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1127 | (void)POPMARK; /* pop src */ |
3280af22 | 1128 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1129 | (void)POPMARK; /* pop dst */ |
3280af22 | 1130 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1131 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1132 | if (PL_op->op_private & OPpGREP_LEX) { |
1133 | SV* sv = sv_newmortal(); | |
1134 | sv_setiv(sv, items); | |
1135 | PUSHs(sv); | |
1136 | } | |
1137 | else { | |
1138 | dTARGET; | |
1139 | XPUSHi(items); | |
1140 | } | |
a0d0e21e | 1141 | } |
54310121 | 1142 | else if (gimme == G_ARRAY) |
1143 | SP += items; | |
a0d0e21e LW |
1144 | RETURN; |
1145 | } | |
1146 | else { | |
1147 | SV *src; | |
1148 | ||
d343c3ef | 1149 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1150 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1151 | |
544f3153 | 1152 | /* set $_ to the new source item */ |
3280af22 | 1153 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1154 | SvTEMP_off(src); |
59f00321 RGS |
1155 | if (PL_op->op_private & OPpGREP_LEX) |
1156 | PAD_SVl(PL_op->op_targ) = src; | |
1157 | else | |
414bf5ae | 1158 | DEFSV_set(src); |
a0d0e21e LW |
1159 | |
1160 | RETURNOP(cLOGOP->op_other); | |
1161 | } | |
1162 | } | |
1163 | ||
a0d0e21e LW |
1164 | /* Range stuff. */ |
1165 | ||
1166 | PP(pp_range) | |
1167 | { | |
97aff369 | 1168 | dVAR; |
a0d0e21e | 1169 | if (GIMME == G_ARRAY) |
1a67a97c | 1170 | return NORMAL; |
538573f7 | 1171 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1172 | return cLOGOP->op_other; |
538573f7 | 1173 | else |
1a67a97c | 1174 | return NORMAL; |
a0d0e21e LW |
1175 | } |
1176 | ||
1177 | PP(pp_flip) | |
1178 | { | |
97aff369 | 1179 | dVAR; |
39644a26 | 1180 | dSP; |
a0d0e21e LW |
1181 | |
1182 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1183 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1184 | } |
1185 | else { | |
1186 | dTOPss; | |
44f8325f | 1187 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1188 | int flip = 0; |
790090df | 1189 | |
bfed75c6 | 1190 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1191 | if (GvIO(PL_last_in_gv)) { |
1192 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1193 | } | |
1194 | else { | |
fafc274c | 1195 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1196 | if (gv && GvSV(gv)) |
1197 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1198 | } |
bfed75c6 AL |
1199 | } else { |
1200 | flip = SvTRUE(sv); | |
1201 | } | |
1202 | if (flip) { | |
a0d0e21e | 1203 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1204 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1205 | sv_setiv(targ, 1); |
3e3baf6d | 1206 | SETs(targ); |
a0d0e21e LW |
1207 | RETURN; |
1208 | } | |
1209 | else { | |
1210 | sv_setiv(targ, 0); | |
924508f0 | 1211 | SP--; |
1a67a97c | 1212 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1213 | } |
1214 | } | |
76f68e9b | 1215 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1216 | SETs(targ); |
1217 | RETURN; | |
1218 | } | |
1219 | } | |
1220 | ||
8e9bbdb9 RGS |
1221 | /* This code tries to decide if "$left .. $right" should use the |
1222 | magical string increment, or if the range is numeric (we make | |
1223 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1224 | ||
1225 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1226 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1227 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1228 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1229 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1230 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1231 | |
a0d0e21e LW |
1232 | PP(pp_flop) |
1233 | { | |
97aff369 | 1234 | dVAR; dSP; |
a0d0e21e LW |
1235 | |
1236 | if (GIMME == G_ARRAY) { | |
1237 | dPOPPOPssrl; | |
86cb7173 | 1238 | |
5b295bef RD |
1239 | SvGETMAGIC(left); |
1240 | SvGETMAGIC(right); | |
a0d0e21e | 1241 | |
8e9bbdb9 | 1242 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1243 | register IV i, j; |
1244 | IV max; | |
4fe3f0fa MHM |
1245 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1246 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1247 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1248 | i = SvIV(left); |
1249 | max = SvIV(right); | |
bbce6d69 | 1250 | if (max >= i) { |
c1ab3db2 AK |
1251 | j = max - i + 1; |
1252 | EXTEND_MORTAL(j); | |
1253 | EXTEND(SP, j); | |
bbce6d69 | 1254 | } |
c1ab3db2 AK |
1255 | else |
1256 | j = 0; | |
1257 | while (j--) { | |
901017d6 | 1258 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1259 | PUSHs(sv); |
1260 | } | |
1261 | } | |
1262 | else { | |
44f8325f | 1263 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1264 | STRLEN len; |
823a54a3 | 1265 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1266 | |
901017d6 | 1267 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1268 | SvPV_force_nolen(sv); |
89ea2908 | 1269 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1270 | XPUSHs(sv); |
b15aece3 | 1271 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1272 | break; |
a0d0e21e LW |
1273 | sv = sv_2mortal(newSVsv(sv)); |
1274 | sv_inc(sv); | |
1275 | } | |
a0d0e21e LW |
1276 | } |
1277 | } | |
1278 | else { | |
1279 | dTOPss; | |
901017d6 | 1280 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1281 | int flop = 0; |
a0d0e21e | 1282 | sv_inc(targ); |
4e3399f9 YST |
1283 | |
1284 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1285 | if (GvIO(PL_last_in_gv)) { | |
1286 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1287 | } | |
1288 | else { | |
fafc274c | 1289 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1290 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1291 | } | |
1292 | } | |
1293 | else { | |
1294 | flop = SvTRUE(sv); | |
1295 | } | |
1296 | ||
1297 | if (flop) { | |
a0d0e21e | 1298 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1299 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1300 | } |
1301 | SETs(targ); | |
1302 | } | |
1303 | ||
1304 | RETURN; | |
1305 | } | |
1306 | ||
1307 | /* Control. */ | |
1308 | ||
27da23d5 | 1309 | static const char * const context_name[] = { |
515afda2 | 1310 | "pseudo-block", |
f31522f3 | 1311 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1312 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1313 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1314 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1315 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1316 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1317 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1318 | "subroutine", |
76753e7f | 1319 | "format", |
515afda2 | 1320 | "eval", |
515afda2 | 1321 | "substitution", |
515afda2 NC |
1322 | }; |
1323 | ||
76e3520e | 1324 | STATIC I32 |
06b5626a | 1325 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1326 | { |
97aff369 | 1327 | dVAR; |
a0d0e21e | 1328 | register I32 i; |
a0d0e21e | 1329 | |
7918f24d NC |
1330 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1331 | ||
a0d0e21e | 1332 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1333 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1334 | switch (CxTYPE(cx)) { |
a0d0e21e | 1335 | case CXt_SUBST: |
a0d0e21e | 1336 | case CXt_SUB: |
7766f137 | 1337 | case CXt_FORMAT: |
a0d0e21e | 1338 | case CXt_EVAL: |
0a753a76 | 1339 | case CXt_NULL: |
a2a5de95 NC |
1340 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1341 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1342 | if (CxTYPE(cx) == CXt_NULL) |
1343 | return -1; | |
1344 | break; | |
c6fdafd0 | 1345 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1346 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1347 | case CXt_LOOP_FOR: |
1348 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1349 | { |
1350 | const char *cx_label = CxLABEL(cx); | |
1351 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1352 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1353 | (long)i, cx_label)); |
a0d0e21e LW |
1354 | continue; |
1355 | } | |
1c98cc53 | 1356 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1357 | return i; |
7e8f1eac | 1358 | } |
a0d0e21e LW |
1359 | } |
1360 | } | |
1361 | return i; | |
1362 | } | |
1363 | ||
0d863452 RH |
1364 | |
1365 | ||
e50aee73 | 1366 | I32 |
864dbfa3 | 1367 | Perl_dowantarray(pTHX) |
e50aee73 | 1368 | { |
97aff369 | 1369 | dVAR; |
f54cb97a | 1370 | const I32 gimme = block_gimme(); |
54310121 | 1371 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1372 | } | |
1373 | ||
1374 | I32 | |
864dbfa3 | 1375 | Perl_block_gimme(pTHX) |
54310121 | 1376 | { |
97aff369 | 1377 | dVAR; |
06b5626a | 1378 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1379 | if (cxix < 0) |
46fc3d4c | 1380 | return G_VOID; |
e50aee73 | 1381 | |
54310121 | 1382 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1383 | case G_VOID: |
1384 | return G_VOID; | |
54310121 | 1385 | case G_SCALAR: |
e50aee73 | 1386 | return G_SCALAR; |
54310121 | 1387 | case G_ARRAY: |
1388 | return G_ARRAY; | |
1389 | default: | |
cea2e8a9 | 1390 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1391 | /* NOTREACHED */ |
1392 | return 0; | |
54310121 | 1393 | } |
e50aee73 AD |
1394 | } |
1395 | ||
78f9721b SM |
1396 | I32 |
1397 | Perl_is_lvalue_sub(pTHX) | |
1398 | { | |
97aff369 | 1399 | dVAR; |
06b5626a | 1400 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1401 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1402 | ||
bafb2adc NC |
1403 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1404 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1405 | else |
1406 | return 0; | |
1407 | } | |
1408 | ||
76e3520e | 1409 | STATIC I32 |
901017d6 | 1410 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1411 | { |
97aff369 | 1412 | dVAR; |
a0d0e21e | 1413 | I32 i; |
7918f24d NC |
1414 | |
1415 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1416 | ||
a0d0e21e | 1417 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1418 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1419 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1420 | default: |
1421 | continue; | |
1422 | case CXt_EVAL: | |
1423 | case CXt_SUB: | |
7766f137 | 1424 | case CXt_FORMAT: |
1c98cc53 | 1425 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1426 | return i; |
1427 | } | |
1428 | } | |
1429 | return i; | |
1430 | } | |
1431 | ||
76e3520e | 1432 | STATIC I32 |
cea2e8a9 | 1433 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1434 | { |
97aff369 | 1435 | dVAR; |
a0d0e21e | 1436 | I32 i; |
a0d0e21e | 1437 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1438 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1439 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1440 | default: |
1441 | continue; | |
1442 | case CXt_EVAL: | |
1c98cc53 | 1443 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1444 | return i; |
1445 | } | |
1446 | } | |
1447 | return i; | |
1448 | } | |
1449 | ||
76e3520e | 1450 | STATIC I32 |
cea2e8a9 | 1451 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1452 | { |
97aff369 | 1453 | dVAR; |
a0d0e21e | 1454 | I32 i; |
a0d0e21e | 1455 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1456 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1457 | switch (CxTYPE(cx)) { |
a0d0e21e | 1458 | case CXt_SUBST: |
a0d0e21e | 1459 | case CXt_SUB: |
7766f137 | 1460 | case CXt_FORMAT: |
a0d0e21e | 1461 | case CXt_EVAL: |
0a753a76 | 1462 | case CXt_NULL: |
a2a5de95 NC |
1463 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1464 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1465 | if ((CxTYPE(cx)) == CXt_NULL) |
1466 | return -1; | |
1467 | break; | |
c6fdafd0 | 1468 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1469 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1470 | case CXt_LOOP_FOR: |
1471 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1472 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1473 | return i; |
1474 | } | |
1475 | } | |
1476 | return i; | |
1477 | } | |
1478 | ||
0d863452 RH |
1479 | STATIC I32 |
1480 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1481 | { | |
97aff369 | 1482 | dVAR; |
0d863452 RH |
1483 | I32 i; |
1484 | for (i = startingblock; i >= 0; i--) { | |
1485 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1486 | switch (CxTYPE(cx)) { | |
1487 | default: | |
1488 | continue; | |
1489 | case CXt_GIVEN: | |
1c98cc53 | 1490 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1491 | return i; |
3b719c58 NC |
1492 | case CXt_LOOP_PLAIN: |
1493 | assert(!CxFOREACHDEF(cx)); | |
1494 | break; | |
c6fdafd0 | 1495 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1496 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1497 | case CXt_LOOP_FOR: |
0d863452 | 1498 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1499 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1500 | return i; |
1501 | } | |
1502 | } | |
1503 | } | |
1504 | return i; | |
1505 | } | |
1506 | ||
1507 | STATIC I32 | |
1508 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1509 | { | |
97aff369 | 1510 | dVAR; |
0d863452 RH |
1511 | I32 i; |
1512 | for (i = startingblock; i >= 0; i--) { | |
1513 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1514 | switch (CxTYPE(cx)) { | |
1515 | default: | |
1516 | continue; | |
1517 | case CXt_WHEN: | |
1c98cc53 | 1518 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1519 | return i; |
1520 | } | |
1521 | } | |
1522 | return i; | |
1523 | } | |
1524 | ||
a0d0e21e | 1525 | void |
864dbfa3 | 1526 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1527 | { |
97aff369 | 1528 | dVAR; |
a0d0e21e LW |
1529 | I32 optype; |
1530 | ||
1531 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1532 | SV *sv; |
06b5626a | 1533 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1534 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1535 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1536 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1537 | case CXt_SUBST: |
1538 | POPSUBST(cx); | |
1539 | continue; /* not break */ | |
a0d0e21e | 1540 | case CXt_SUB: |
b0d9ce38 GS |
1541 | POPSUB(cx,sv); |
1542 | LEAVESUB(sv); | |
a0d0e21e LW |
1543 | break; |
1544 | case CXt_EVAL: | |
1545 | POPEVAL(cx); | |
1546 | break; | |
c6fdafd0 | 1547 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1548 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1549 | case CXt_LOOP_FOR: |
1550 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1551 | POPLOOP(cx); |
1552 | break; | |
0a753a76 | 1553 | case CXt_NULL: |
a0d0e21e | 1554 | break; |
7766f137 GS |
1555 | case CXt_FORMAT: |
1556 | POPFORMAT(cx); | |
1557 | break; | |
a0d0e21e | 1558 | } |
c90c0ff4 | 1559 | cxstack_ix--; |
a0d0e21e | 1560 | } |
1b6737cc | 1561 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1562 | } |
1563 | ||
5a844595 GS |
1564 | void |
1565 | Perl_qerror(pTHX_ SV *err) | |
1566 | { | |
97aff369 | 1567 | dVAR; |
7918f24d NC |
1568 | |
1569 | PERL_ARGS_ASSERT_QERROR; | |
1570 | ||
5a844595 GS |
1571 | if (PL_in_eval) |
1572 | sv_catsv(ERRSV, err); | |
1573 | else if (PL_errors) | |
1574 | sv_catsv(PL_errors, err); | |
1575 | else | |
be2597df | 1576 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1577 | if (PL_parser) |
1578 | ++PL_parser->error_count; | |
5a844595 GS |
1579 | } |
1580 | ||
bb4c52e0 | 1581 | void |
c5df3096 | 1582 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1583 | { |
27da23d5 | 1584 | dVAR; |
c5df3096 | 1585 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1586 | U8 in_eval = PL_in_eval; |
c5df3096 | 1587 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1588 | |
96d9b9cd | 1589 | if (in_eval) { |
a0d0e21e | 1590 | I32 cxix; |
a0d0e21e | 1591 | I32 gimme; |
a0d0e21e | 1592 | |
5a844595 GS |
1593 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1594 | && PL_curstackinfo->si_prev) | |
1595 | { | |
bac4b2ad | 1596 | dounwind(-1); |
d3acc0f7 | 1597 | POPSTACK; |
bac4b2ad | 1598 | } |
e336de0d | 1599 | |
a0d0e21e LW |
1600 | if (cxix >= 0) { |
1601 | I32 optype; | |
b6494f15 | 1602 | SV *namesv; |
35a4481c | 1603 | register PERL_CONTEXT *cx; |
901017d6 | 1604 | SV **newsp; |
a0d0e21e LW |
1605 | |
1606 | if (cxix < cxstack_ix) | |
1607 | dounwind(cxix); | |
1608 | ||
3280af22 | 1609 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1610 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1611 | STRLEN msglen; |
96d9b9cd | 1612 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1613 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1614 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1615 | my_exit(1); |
1616 | } | |
1617 | POPEVAL(cx); | |
b6494f15 | 1618 | namesv = cx->blk_eval.old_namesv; |
a0d0e21e LW |
1619 | |
1620 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1621 | *++newsp = &PL_sv_undef; |
1622 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1623 | |
1624 | LEAVE; | |
748a9306 | 1625 | |
7fb6a879 GS |
1626 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1627 | * XXX it might be better to find a way to avoid messing with | |
1628 | * PL_curcop in save_re_context() instead, but this is a more | |
1629 | * minimal fix --GSAR */ | |
1630 | PL_curcop = cx->blk_oldcop; | |
1631 | ||
7a2e2cd6 | 1632 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1633 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1634 | (void)hv_store(GvHVn(PL_incgv), |
1635 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1636 | &PL_sv_undef, 0); |
27e90453 DM |
1637 | /* note that unlike pp_entereval, pp_require isn't |
1638 | * supposed to trap errors. So now that we've popped the | |
1639 | * EVAL that pp_require pushed, and processed the error | |
1640 | * message, rethrow the error */ | |
9fed9930 NC |
1641 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1642 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1643 | } |
c5df3096 | 1644 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1645 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1646 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1647 | } |
1648 | else { | |
1649 | sv_setsv(ERRSV, exceptsv); | |
1650 | } | |
f39bc417 | 1651 | assert(CxTYPE(cx) == CXt_EVAL); |
febb3a6d | 1652 | PL_restartjmpenv = cx->blk_eval.cur_top_env; |
bb4c52e0 GG |
1653 | PL_restartop = cx->blk_eval.retop; |
1654 | JMPENV_JUMP(3); | |
1655 | /* NOTREACHED */ | |
a0d0e21e LW |
1656 | } |
1657 | } | |
87582a92 | 1658 | |
96d9b9cd | 1659 | write_to_stderr(exceptsv); |
f86702cc | 1660 | my_failure_exit(); |
1661 | /* NOTREACHED */ | |
a0d0e21e LW |
1662 | } |
1663 | ||
1664 | PP(pp_xor) | |
1665 | { | |
97aff369 | 1666 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1667 | if (SvTRUE(left) != SvTRUE(right)) |
1668 | RETSETYES; | |
1669 | else | |
1670 | RETSETNO; | |
1671 | } | |
1672 | ||
a0d0e21e LW |
1673 | PP(pp_caller) |
1674 | { | |
97aff369 | 1675 | dVAR; |
39644a26 | 1676 | dSP; |
a0d0e21e | 1677 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1678 | register const PERL_CONTEXT *cx; |
1679 | register const PERL_CONTEXT *ccstack = cxstack; | |
1680 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1681 | I32 gimme; |
06b5626a | 1682 | const char *stashname; |
a0d0e21e LW |
1683 | I32 count = 0; |
1684 | ||
1685 | if (MAXARG) | |
1686 | count = POPi; | |
27d41816 | 1687 | |
a0d0e21e | 1688 | for (;;) { |
2c375eb9 GS |
1689 | /* we may be in a higher stacklevel, so dig down deeper */ |
1690 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1691 | top_si = top_si->si_prev; | |
1692 | ccstack = top_si->si_cxstack; | |
1693 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1694 | } | |
a0d0e21e | 1695 | if (cxix < 0) { |
27d41816 DM |
1696 | if (GIMME != G_ARRAY) { |
1697 | EXTEND(SP, 1); | |
a0d0e21e | 1698 | RETPUSHUNDEF; |
27d41816 | 1699 | } |
a0d0e21e LW |
1700 | RETURN; |
1701 | } | |
f2a7f298 DG |
1702 | /* caller() should not report the automatic calls to &DB::sub */ |
1703 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1704 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1705 | count++; |
1706 | if (!count--) | |
1707 | break; | |
2c375eb9 | 1708 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1709 | } |
2c375eb9 GS |
1710 | |
1711 | cx = &ccstack[cxix]; | |
7766f137 | 1712 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1713 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1714 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1715 | field below is defined for any cx. */ |
f2a7f298 DG |
1716 | /* caller() should not report the automatic calls to &DB::sub */ |
1717 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1718 | cx = &ccstack[dbcxix]; |
06a5b730 | 1719 | } |
1720 | ||
ed094faf | 1721 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1722 | if (GIMME != G_ARRAY) { |
27d41816 | 1723 | EXTEND(SP, 1); |
ed094faf | 1724 | if (!stashname) |
3280af22 | 1725 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1726 | else { |
1727 | dTARGET; | |
ed094faf | 1728 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1729 | PUSHs(TARG); |
1730 | } | |
a0d0e21e LW |
1731 | RETURN; |
1732 | } | |
a0d0e21e | 1733 | |
b3ca2e83 | 1734 | EXTEND(SP, 11); |
27d41816 | 1735 | |
ed094faf | 1736 | if (!stashname) |
3280af22 | 1737 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1738 | else |
6e449a3a MHM |
1739 | mPUSHs(newSVpv(stashname, 0)); |
1740 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1741 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1742 | if (!MAXARG) |
1743 | RETURN; | |
7766f137 | 1744 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1745 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1746 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1747 | if (isGV(cvgv)) { |
561b68a9 | 1748 | SV * const sv = newSV(0); |
c445ea15 | 1749 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1750 | mPUSHs(sv); |
bf38a478 | 1751 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1752 | } |
1753 | else { | |
84bafc02 | 1754 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1755 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1756 | } |
a0d0e21e LW |
1757 | } |
1758 | else { | |
84bafc02 | 1759 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1760 | mPUSHi(0); |
a0d0e21e | 1761 | } |
54310121 | 1762 | gimme = (I32)cx->blk_gimme; |
1763 | if (gimme == G_VOID) | |
3280af22 | 1764 | PUSHs(&PL_sv_undef); |
54310121 | 1765 | else |
98625aca | 1766 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1767 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1768 | /* eval STRING */ |
85a64632 | 1769 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1770 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1771 | PUSHs(&PL_sv_no); |
0f79a09d | 1772 | } |
811a4de9 | 1773 | /* require */ |
0f79a09d | 1774 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1775 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1776 | PUSHs(&PL_sv_yes); |
06a5b730 | 1777 | } |
811a4de9 GS |
1778 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1779 | else { | |
1780 | PUSHs(&PL_sv_undef); | |
1781 | PUSHs(&PL_sv_undef); | |
1782 | } | |
4633a7c4 | 1783 | } |
a682de96 GS |
1784 | else { |
1785 | PUSHs(&PL_sv_undef); | |
1786 | PUSHs(&PL_sv_undef); | |
1787 | } | |
bafb2adc | 1788 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1789 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1790 | { |
66a1b24b AL |
1791 | AV * const ary = cx->blk_sub.argarray; |
1792 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1793 | |
5b235299 NC |
1794 | if (!PL_dbargs) |
1795 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1796 | |
3280af22 NIS |
1797 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1798 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1799 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1800 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1801 | } |
f3aa04c2 GS |
1802 | /* XXX only hints propagated via op_private are currently |
1803 | * visible (others are not easily accessible, since they | |
1804 | * use the global PL_hints) */ | |
6e449a3a | 1805 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1806 | { |
1807 | SV * mask ; | |
72dc9ed5 | 1808 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1809 | |
ac27b0f5 | 1810 | if (old_warnings == pWARN_NONE || |
114bafba | 1811 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1812 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1813 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1814 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1815 | /* Get the bit mask for $warnings::Bits{all}, because | |
1816 | * it could have been extended by warnings::register */ | |
1817 | SV **bits_all; | |
6673a63c | 1818 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1819 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1820 | mask = newSVsv(*bits_all); |
1821 | } | |
1822 | else { | |
1823 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1824 | } | |
1825 | } | |
e476b1b5 | 1826 | else |
72dc9ed5 | 1827 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1828 | mPUSHs(mask); |
e476b1b5 | 1829 | } |
b3ca2e83 | 1830 | |
c28fe1ec | 1831 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1832 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1833 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1834 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1835 | : &PL_sv_undef); |
a0d0e21e LW |
1836 | RETURN; |
1837 | } | |
1838 | ||
a0d0e21e LW |
1839 | PP(pp_reset) |
1840 | { | |
97aff369 | 1841 | dVAR; |
39644a26 | 1842 | dSP; |
10edeb5d | 1843 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1844 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1845 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1846 | RETURN; |
1847 | } | |
1848 | ||
dd2155a4 DM |
1849 | /* like pp_nextstate, but used instead when the debugger is active */ |
1850 | ||
a0d0e21e LW |
1851 | PP(pp_dbstate) |
1852 | { | |
27da23d5 | 1853 | dVAR; |
533c011a | 1854 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1855 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1856 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1857 | FREETMPS; |
1858 | ||
f410a211 NC |
1859 | PERL_ASYNC_CHECK(); |
1860 | ||
5df8de69 DM |
1861 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1862 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1863 | { |
39644a26 | 1864 | dSP; |
c09156bb | 1865 | register PERL_CONTEXT *cx; |
f54cb97a | 1866 | const I32 gimme = G_ARRAY; |
eb160463 | 1867 | U8 hasargs; |
0bd48802 AL |
1868 | GV * const gv = PL_DBgv; |
1869 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1870 | |
a0d0e21e | 1871 | if (!cv) |
cea2e8a9 | 1872 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1873 | |
aea4f609 DM |
1874 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1875 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1876 | return NORMAL; |
748a9306 | 1877 | |
a57c6685 | 1878 | ENTER; |
4633a7c4 LW |
1879 | SAVETMPS; |
1880 | ||
3280af22 | 1881 | SAVEI32(PL_debug); |
55497cff | 1882 | SAVESTACK_POS(); |
3280af22 | 1883 | PL_debug = 0; |
748a9306 | 1884 | hasargs = 0; |
924508f0 | 1885 | SPAGAIN; |
748a9306 | 1886 | |
aed2304a | 1887 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1888 | CvDEPTH(cv)++; |
1889 | PUSHMARK(SP); | |
1890 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1891 | CvDEPTH(cv)--; | |
1892 | FREETMPS; | |
a57c6685 | 1893 | LEAVE; |
c127bd3a SF |
1894 | return NORMAL; |
1895 | } | |
1896 | else { | |
1897 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1898 | PUSHSUB_DB(cx); | |
1899 | cx->blk_sub.retop = PL_op->op_next; | |
1900 | CvDEPTH(cv)++; | |
1901 | SAVECOMPPAD(); | |
1902 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1903 | RETURNOP(CvSTART(cv)); | |
1904 | } | |
a0d0e21e LW |
1905 | } |
1906 | else | |
1907 | return NORMAL; | |
1908 | } | |
1909 | ||
a0d0e21e LW |
1910 | PP(pp_enteriter) |
1911 | { | |
27da23d5 | 1912 | dVAR; dSP; dMARK; |
c09156bb | 1913 | register PERL_CONTEXT *cx; |
f54cb97a | 1914 | const I32 gimme = GIMME_V; |
a0d0e21e | 1915 | SV **svp; |
840fe433 | 1916 | U8 cxtype = CXt_LOOP_FOR; |
7766f137 | 1917 | #ifdef USE_ITHREADS |
e846cb92 | 1918 | PAD *iterdata; |
7766f137 | 1919 | #endif |
a0d0e21e | 1920 | |
d343c3ef | 1921 | ENTER_with_name("loop1"); |
4633a7c4 LW |
1922 | SAVETMPS; |
1923 | ||
533c011a | 1924 | if (PL_op->op_targ) { |
14f338dc DM |
1925 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1926 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1927 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1928 | SVs_PADSTALE, SVs_PADSTALE); | |
1929 | } | |
09edbca0 | 1930 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
c3564e5c | 1931 | #ifndef USE_ITHREADS |
dd2155a4 | 1932 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
c3564e5c | 1933 | #else |
e846cb92 | 1934 | iterdata = NULL; |
7766f137 | 1935 | #endif |
54b9620d MB |
1936 | } |
1937 | else { | |
159b6efe | 1938 | GV * const gv = MUTABLE_GV(POPs); |
7766f137 | 1939 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1940 | SAVEGENERICSV(*svp); |
561b68a9 | 1941 | *svp = newSV(0); |
7766f137 | 1942 | #ifdef USE_ITHREADS |
e846cb92 | 1943 | iterdata = (PAD*)gv; |
7766f137 | 1944 | #endif |
54b9620d | 1945 | } |
4633a7c4 | 1946 | |
0d863452 RH |
1947 | if (PL_op->op_private & OPpITER_DEF) |
1948 | cxtype |= CXp_FOR_DEF; | |
1949 | ||
d343c3ef | 1950 | ENTER_with_name("loop2"); |
a0d0e21e | 1951 | |
7766f137 GS |
1952 | PUSHBLOCK(cx, cxtype, SP); |
1953 | #ifdef USE_ITHREADS | |
e846cb92 | 1954 | PUSHLOOP_FOR(cx, iterdata, MARK, PL_op->op_targ); |
7766f137 | 1955 | #else |
52d1f6fb | 1956 | PUSHLOOP_FOR(cx, svp, MARK, 0); |
7766f137 | 1957 | #endif |
533c011a | 1958 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
1959 | SV *maybe_ary = POPs; |
1960 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 1961 | dPOPss; |
d01136d6 | 1962 | SV * const right = maybe_ary; |
984a4bea RD |
1963 | SvGETMAGIC(sv); |
1964 | SvGETMAGIC(right); | |
4fe3f0fa | 1965 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 1966 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
1967 | cx->cx_type |= CXt_LOOP_LAZYIV; |
1968 | /* Make sure that no-one re-orders cop.h and breaks our | |
1969 | assumptions */ | |
1970 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
1971 | #ifdef NV_PRESERVES_UV |
1972 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
1973 | (SvNV(sv) > (NV)IV_MAX))) | |
1974 | || | |
1975 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
1976 | (SvNV(right) < (NV)IV_MIN)))) | |
1977 | #else | |
1978 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
1979 | || | |
1980 | ((SvNV(sv) > 0) && | |
1981 | ((SvUV(sv) > (UV)IV_MAX) || | |
1982 | (SvNV(sv) > (NV)UV_MAX))))) | |
1983 | || | |
1984 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
1985 | || | |
1986 | ((SvNV(right) > 0) && | |
1987 | ((SvUV(right) > (UV)IV_MAX) || | |
1988 | (SvNV(right) > (NV)UV_MAX)))))) | |
1989 | #endif | |
076d9a11 | 1990 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
1991 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
1992 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
1993 | #ifdef DEBUGGING |
1994 | /* for correct -Dstv display */ | |
1995 | cx->blk_oldsp = sp - PL_stack_base; | |
1996 | #endif | |
89ea2908 | 1997 | } |
3f63a782 | 1998 | else { |
d01136d6 BS |
1999 | cx->cx_type &= ~CXTYPEMASK; |
2000 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2001 | /* Make sure that no-one re-orders cop.h and breaks our | |
2002 | assumptions */ | |
2003 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2004 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2005 | cx->blk_loop.state_u.lazysv.end = right; | |
2006 | SvREFCNT_inc(right); | |
2007 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2008 | /* This will do the upgrade to SVt_PV, and warn if the value |
2009 | is uninitialised. */ | |
10516c54 | 2010 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2011 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2012 | to replace !SvOK() with a pointer to "". */ | |
2013 | if (!SvOK(right)) { | |
2014 | SvREFCNT_dec(right); | |
d01136d6 | 2015 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2016 | } |
3f63a782 | 2017 | } |
89ea2908 | 2018 | } |
d01136d6 | 2019 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2020 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2021 | SvREFCNT_inc(maybe_ary); |
2022 | cx->blk_loop.state_u.ary.ix = | |
2023 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2024 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2025 | -1; | |
ef3e5ea9 | 2026 | } |
89ea2908 | 2027 | } |
d01136d6 BS |
2028 | else { /* iterating over items on the stack */ |
2029 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2030 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2031 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2032 | } |
2033 | else { | |
d01136d6 | 2034 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2035 | } |
4633a7c4 | 2036 | } |
a0d0e21e LW |
2037 | |
2038 | RETURN; | |
2039 | } | |
2040 | ||
2041 | PP(pp_enterloop) | |
2042 | { | |
27da23d5 | 2043 | dVAR; dSP; |
c09156bb | 2044 | register PERL_CONTEXT *cx; |
f54cb97a | 2045 | const I32 gimme = GIMME_V; |
a0d0e21e | 2046 | |
d343c3ef | 2047 | ENTER_with_name("loop1"); |
a0d0e21e | 2048 | SAVETMPS; |
d343c3ef | 2049 | ENTER_with_name("loop2"); |
a0d0e21e | 2050 | |
3b719c58 NC |
2051 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2052 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2053 | |
2054 | RETURN; | |
2055 | } | |
2056 | ||
2057 | PP(pp_leaveloop) | |
2058 | { | |
27da23d5 | 2059 | dVAR; dSP; |
c09156bb | 2060 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2061 | I32 gimme; |
2062 | SV **newsp; | |
2063 | PMOP *newpm; | |
2064 | SV **mark; | |
2065 | ||
2066 | POPBLOCK(cx,newpm); | |
3b719c58 | 2067 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2068 | mark = newsp; |
a8bba7fa | 2069 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2070 | |
a1f49e72 | 2071 | TAINT_NOT; |
54310121 | 2072 | if (gimme == G_VOID) |
6f207bd3 | 2073 | NOOP; |
54310121 | 2074 | else if (gimme == G_SCALAR) { |
2075 | if (mark < SP) | |
2076 | *++newsp = sv_mortalcopy(*SP); | |
2077 | else | |
3280af22 | 2078 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2079 | } |
2080 | else { | |
a1f49e72 | 2081 | while (mark < SP) { |
a0d0e21e | 2082 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2083 | TAINT_NOT; /* Each item is independent */ |
2084 | } | |
a0d0e21e | 2085 | } |
f86702cc | 2086 | SP = newsp; |
2087 | PUTBACK; | |
2088 | ||
a8bba7fa | 2089 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2090 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2091 | |
d343c3ef GG |
2092 | LEAVE_with_name("loop2"); |
2093 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2094 | |
f86702cc | 2095 | return NORMAL; |
a0d0e21e LW |
2096 | } |
2097 | ||
2098 | PP(pp_return) | |
2099 | { | |
27da23d5 | 2100 | dVAR; dSP; dMARK; |
c09156bb | 2101 | register PERL_CONTEXT *cx; |
f86702cc | 2102 | bool popsub2 = FALSE; |
b45de488 | 2103 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2104 | I32 gimme; |
2105 | SV **newsp; | |
2106 | PMOP *newpm; | |
2107 | I32 optype = 0; | |
b6494f15 | 2108 | SV *namesv; |
b0d9ce38 | 2109 | SV *sv; |
b263a1ad | 2110 | OP *retop = NULL; |
a0d0e21e | 2111 | |
0bd48802 AL |
2112 | const I32 cxix = dopoptosub(cxstack_ix); |
2113 | ||
9850bf21 RH |
2114 | if (cxix < 0) { |
2115 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2116 | * sort block, which is a CXt_NULL | |
2117 | * not a CXt_SUB */ | |
2118 | dounwind(0); | |
d7507f74 RH |
2119 | PL_stack_base[1] = *PL_stack_sp; |
2120 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2121 | return 0; |
2122 | } | |
9850bf21 RH |
2123 | else |
2124 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2125 | } |
a0d0e21e LW |
2126 | if (cxix < cxstack_ix) |
2127 | dounwind(cxix); | |
2128 | ||
d7507f74 RH |
2129 | if (CxMULTICALL(&cxstack[cxix])) { |
2130 | gimme = cxstack[cxix].blk_gimme; | |
2131 | if (gimme == G_VOID) | |
2132 | PL_stack_sp = PL_stack_base; | |
2133 | else if (gimme == G_SCALAR) { | |
2134 | PL_stack_base[1] = *PL_stack_sp; | |
2135 | PL_stack_sp = PL_stack_base + 1; | |
2136 | } | |
9850bf21 | 2137 | return 0; |
d7507f74 | 2138 | } |
9850bf21 | 2139 | |
a0d0e21e | 2140 | POPBLOCK(cx,newpm); |
6b35e009 | 2141 | switch (CxTYPE(cx)) { |
a0d0e21e | 2142 | case CXt_SUB: |
f86702cc | 2143 | popsub2 = TRUE; |
f39bc417 | 2144 | retop = cx->blk_sub.retop; |
5dd42e15 | 2145 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2146 | break; |
2147 | case CXt_EVAL: | |
b45de488 GS |
2148 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2149 | clear_errsv = TRUE; | |
a0d0e21e | 2150 | POPEVAL(cx); |
b6494f15 | 2151 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2152 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2153 | if (CxTRYBLOCK(cx)) |
2154 | break; | |
067f92a0 | 2155 | lex_end(); |
748a9306 LW |
2156 | if (optype == OP_REQUIRE && |
2157 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2158 | { | |
54310121 | 2159 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2160 | (void)hv_delete(GvHVn(PL_incgv), |
2161 | SvPVX_const(namesv), SvCUR(namesv), | |
2162 | G_DISCARD); | |
2163 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2164 | } |
a0d0e21e | 2165 | break; |
7766f137 GS |
2166 | case CXt_FORMAT: |
2167 | POPFORMAT(cx); | |
f39bc417 | 2168 | retop = cx->blk_sub.retop; |
7766f137 | 2169 | break; |
a0d0e21e | 2170 | default: |
cea2e8a9 | 2171 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2172 | } |
2173 | ||
a1f49e72 | 2174 | TAINT_NOT; |
a0d0e21e | 2175 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2176 | if (MARK < SP) { |
2177 | if (popsub2) { | |
a8bba7fa | 2178 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2179 | if (SvTEMP(TOPs)) { |
2180 | *++newsp = SvREFCNT_inc(*SP); | |
2181 | FREETMPS; | |
2182 | sv_2mortal(*newsp); | |
959e3673 GS |
2183 | } |
2184 | else { | |
2185 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2186 | FREETMPS; |
959e3673 GS |
2187 | *++newsp = sv_mortalcopy(sv); |
2188 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2189 | } |
959e3673 GS |
2190 | } |
2191 | else | |
a29cdaf0 | 2192 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2193 | } |
2194 | else | |
a29cdaf0 | 2195 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2196 | } |
2197 | else | |
3280af22 | 2198 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2199 | } |
54310121 | 2200 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2201 | while (++MARK <= SP) { |
f86702cc | 2202 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2203 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2204 | TAINT_NOT; /* Each item is independent */ |
2205 | } | |
a0d0e21e | 2206 | } |
3280af22 | 2207 | PL_stack_sp = newsp; |
a0d0e21e | 2208 | |
5dd42e15 | 2209 | LEAVE; |
f86702cc | 2210 | /* Stack values are safe: */ |
2211 | if (popsub2) { | |
5dd42e15 | 2212 | cxstack_ix--; |
b0d9ce38 | 2213 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2214 | } |
b0d9ce38 | 2215 | else |
c445ea15 | 2216 | sv = NULL; |
3280af22 | 2217 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2218 | |
b0d9ce38 | 2219 | LEAVESUB(sv); |
8433848b | 2220 | if (clear_errsv) { |
ab69dbc2 | 2221 | CLEAR_ERRSV(); |
8433848b | 2222 | } |
f39bc417 | 2223 | return retop; |
a0d0e21e LW |
2224 | } |
2225 | ||
2226 | PP(pp_last) | |
2227 | { | |
27da23d5 | 2228 | dVAR; dSP; |
a0d0e21e | 2229 | I32 cxix; |
c09156bb | 2230 | register PERL_CONTEXT *cx; |
f86702cc | 2231 | I32 pop2 = 0; |
a0d0e21e | 2232 | I32 gimme; |
8772537c | 2233 | I32 optype; |
b263a1ad | 2234 | OP *nextop = NULL; |
a0d0e21e LW |
2235 | SV **newsp; |
2236 | PMOP *newpm; | |
a8bba7fa | 2237 | SV **mark; |
c445ea15 | 2238 | SV *sv = NULL; |
9d4ba2ae | 2239 | |
a0d0e21e | 2240 | |
533c011a | 2241 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2242 | cxix = dopoptoloop(cxstack_ix); |
2243 | if (cxix < 0) | |
a651a37d | 2244 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2245 | } |
2246 | else { | |
2247 | cxix = dopoptolabel(cPVOP->op_pv); | |
2248 | if (cxix < 0) | |
cea2e8a9 | 2249 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2250 | } |
2251 | if (cxix < cxstack_ix) | |
2252 | dounwind(cxix); | |
2253 | ||
2254 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2255 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2256 | mark = newsp; |
6b35e009 | 2257 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2258 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2259 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2260 | case CXt_LOOP_FOR: |
2261 | case CXt_LOOP_PLAIN: | |
2262 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2263 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2264 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2265 | break; |
f86702cc | 2266 | case CXt_SUB: |
f86702cc | 2267 | pop2 = CXt_SUB; |
f39bc417 | 2268 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2269 | break; |
f86702cc | 2270 | case CXt_EVAL: |
2271 | POPEVAL(cx); | |
f39bc417 | 2272 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2273 | break; |
7766f137 GS |
2274 | case CXt_FORMAT: |
2275 | POPFORMAT(cx); | |
f39bc417 | 2276 | nextop = cx->blk_sub.retop; |
7766f137 | 2277 | break; |
a0d0e21e | 2278 | default: |
cea2e8a9 | 2279 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2280 | } |
2281 | ||
a1f49e72 | 2282 | TAINT_NOT; |
a0d0e21e | 2283 | if (gimme == G_SCALAR) { |
f86702cc | 2284 | if (MARK < SP) |
2285 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2286 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2287 | else |
3280af22 | 2288 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2289 | } |
54310121 | 2290 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2291 | while (++MARK <= SP) { |
f86702cc | 2292 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2293 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2294 | TAINT_NOT; /* Each item is independent */ |
2295 | } | |
f86702cc | 2296 | } |
2297 | SP = newsp; | |
2298 | PUTBACK; | |
2299 | ||
5dd42e15 DM |
2300 | LEAVE; |
2301 | cxstack_ix--; | |
f86702cc | 2302 | /* Stack values are safe: */ |
2303 | switch (pop2) { | |
c6fdafd0 | 2304 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2305 | case CXt_LOOP_PLAIN: |
d01136d6 | 2306 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2307 | case CXt_LOOP_FOR: |
a8bba7fa | 2308 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2309 | LEAVE; |
f86702cc | 2310 | break; |
2311 | case CXt_SUB: | |
b0d9ce38 | 2312 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2313 | break; |
a0d0e21e | 2314 | } |
3280af22 | 2315 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2316 | |
b0d9ce38 | 2317 | LEAVESUB(sv); |
9d4ba2ae AL |
2318 | PERL_UNUSED_VAR(optype); |
2319 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2320 | return nextop; |
a0d0e21e LW |
2321 | } |
2322 | ||
2323 | PP(pp_next) | |
2324 | { | |
27da23d5 | 2325 | dVAR; |
a0d0e21e | 2326 | I32 cxix; |
c09156bb | 2327 | register PERL_CONTEXT *cx; |
85538317 | 2328 | I32 inner; |
a0d0e21e | 2329 | |
533c011a | 2330 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2331 | cxix = dopoptoloop(cxstack_ix); |
2332 | if (cxix < 0) | |
a651a37d | 2333 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2334 | } |
2335 | else { | |
2336 | cxix = dopoptolabel(cPVOP->op_pv); | |
2337 | if (cxix < 0) | |
cea2e8a9 | 2338 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2339 | } |
2340 | if (cxix < cxstack_ix) | |
2341 | dounwind(cxix); | |
2342 | ||
85538317 GS |
2343 | /* clear off anything above the scope we're re-entering, but |
2344 | * save the rest until after a possible continue block */ | |
2345 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2346 | TOPBLOCK(cx); |
85538317 GS |
2347 | if (PL_scopestack_ix < inner) |
2348 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2349 | PL_curcop = cx->blk_oldcop; |
022eaa24 | 2350 | return CX_LOOP_NEXTOP_GET(cx); |
a0d0e21e LW |
2351 | } |
2352 | ||
2353 | PP(pp_redo) | |
2354 | { | |
27da23d5 | 2355 | dVAR; |
a0d0e21e | 2356 | I32 cxix; |
c09156bb | 2357 | register PERL_CONTEXT *cx; |
a0d0e21e | 2358 | I32 oldsave; |
a034e688 | 2359 | OP* redo_op; |
a0d0e21e | 2360 | |
533c011a | 2361 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2362 | cxix = dopoptoloop(cxstack_ix); |
2363 | if (cxix < 0) | |
a651a37d | 2364 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2365 | } |
2366 | else { | |
2367 | cxix = dopoptolabel(cPVOP->op_pv); | |
2368 | if (cxix < 0) | |
cea2e8a9 | 2369 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2370 | } |
2371 | if (cxix < cxstack_ix) | |
2372 | dounwind(cxix); | |
2373 | ||
022eaa24 | 2374 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2375 | if (redo_op->op_type == OP_ENTER) { |
2376 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2377 | cxstack_ix++; | |
2378 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2379 | redo_op = redo_op->op_next; | |
2380 | } | |
2381 | ||
a0d0e21e | 2382 | TOPBLOCK(cx); |
3280af22 | 2383 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2384 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2385 | FREETMPS; |
3a1b2b9e | 2386 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2387 | return redo_op; |
a0d0e21e LW |
2388 | } |
2389 | ||
0824fdcb | 2390 | STATIC OP * |
bfed75c6 | 2391 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2392 | { |
97aff369 | 2393 | dVAR; |
a0d0e21e | 2394 | OP **ops = opstack; |
bfed75c6 | 2395 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2396 | |
7918f24d NC |
2397 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2398 | ||
fc36a67e | 2399 | if (ops >= oplimit) |
cea2e8a9 | 2400 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2401 | if (o->op_type == OP_LEAVE || |
2402 | o->op_type == OP_SCOPE || | |
2403 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2404 | o->op_type == OP_LEAVESUB || |
11343788 | 2405 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2406 | { |
5dc0d613 | 2407 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2408 | if (ops >= oplimit) |
cea2e8a9 | 2409 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2410 | } |
c4aa4e48 | 2411 | *ops = 0; |
11343788 | 2412 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2413 | OP *kid; |
a0d0e21e | 2414 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2415 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2416 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2417 | const char *kid_label = CopLABEL(kCOP); | |
2418 | if (kid_label && strEQ(kid_label, label)) | |
2419 | return kid; | |
2420 | } | |
a0d0e21e | 2421 | } |
11343788 | 2422 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2423 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2424 | continue; |
ed8d0fe2 SM |
2425 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2426 | if (ops == opstack) | |
2427 | *ops++ = kid; | |
2428 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2429 | ops[-1]->op_type == OP_DBSTATE) | |
2430 | ops[-1] = kid; | |
2431 | else | |
2432 | *ops++ = kid; | |
2433 | } | |
155aba94 | 2434 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2435 | return o; |
a0d0e21e LW |
2436 | } |
2437 | } | |
c4aa4e48 | 2438 | *ops = 0; |
a0d0e21e LW |
2439 | return 0; |
2440 | } | |
2441 | ||
a0d0e21e LW |
2442 | PP(pp_goto) |
2443 | { | |
27da23d5 | 2444 | dVAR; dSP; |
cbbf8932 | 2445 | OP *retop = NULL; |
a0d0e21e | 2446 | I32 ix; |
c09156bb | 2447 | register PERL_CONTEXT *cx; |
fc36a67e | 2448 | #define GOTO_DEPTH 64 |
2449 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2450 | const char *label = NULL; |
bfed75c6 AL |
2451 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2452 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2453 | |
533c011a | 2454 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2455 | SV * const sv = POPs; |
a0d0e21e LW |
2456 | |
2457 | /* This egregious kludge implements goto &subroutine */ | |
2458 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2459 | I32 cxix; | |
c09156bb | 2460 | register PERL_CONTEXT *cx; |
ea726b52 | 2461 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2462 | SV** mark; |
2463 | I32 items = 0; | |
2464 | I32 oldsave; | |
b1464ded | 2465 | bool reified = 0; |
a0d0e21e | 2466 | |
e8f7dd13 | 2467 | retry: |
4aa0a1f7 | 2468 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2469 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2470 | if (gv) { |
7fc63493 | 2471 | GV *autogv; |
e8f7dd13 GS |
2472 | SV *tmpstr; |
2473 | /* autoloaded stub? */ | |
2474 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2475 | goto retry; | |
2476 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2477 | GvNAMELEN(gv), FALSE); | |
2478 | if (autogv && (cv = GvCV(autogv))) | |
2479 | goto retry; | |
2480 | tmpstr = sv_newmortal(); | |
c445ea15 | 2481 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2482 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2483 | } |
cea2e8a9 | 2484 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2485 | } |
2486 | ||
a0d0e21e | 2487 | /* First do some returnish stuff. */ |
b37c2d43 | 2488 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2489 | FREETMPS; |
a0d0e21e LW |
2490 | cxix = dopoptosub(cxstack_ix); |
2491 | if (cxix < 0) | |
cea2e8a9 | 2492 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2493 | if (cxix < cxstack_ix) |
2494 | dounwind(cxix); | |
2495 | TOPBLOCK(cx); | |
2d43a17f | 2496 | SPAGAIN; |
564abe23 | 2497 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2498 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2499 | if (CxREALEVAL(cx)) |
2500 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2501 | else | |
2502 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2503 | } |
9850bf21 RH |
2504 | else if (CxMULTICALL(cx)) |
2505 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2506 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2507 | /* put @_ back onto stack */ |
a0d0e21e | 2508 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2509 | |
93965878 | 2510 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2511 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2512 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2513 | SvREFCNT_dec(GvAV(PL_defgv)); |
2514 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2515 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2516 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2517 | if (AvREAL(av)) { |
b1464ded DM |
2518 | reified = 1; |
2519 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2520 | av = newAV(); |
2521 | av_extend(av, items-1); | |
11ca45c0 | 2522 | AvREIFY_only(av); |
ad64d0ec | 2523 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2524 | } |
a0d0e21e | 2525 | } |
aed2304a | 2526 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2527 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2528 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2529 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2530 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2531 | } |
a45cdc79 DM |
2532 | mark = SP; |
2533 | SP += items; | |
6b35e009 | 2534 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2535 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2536 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2537 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2538 | LEAVE_SCOPE(oldsave); |
2539 | ||
2540 | /* Now do some callish stuff. */ | |
2541 | SAVETMPS; | |
5023d17a | 2542 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2543 | if (CvISXSUB(cv)) { |
b37c2d43 | 2544 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2545 | SV **newsp; |
2546 | I32 gimme; | |
b1464ded DM |
2547 | if (reified) { |
2548 | I32 index; | |
2549 | for (index=0; index<items; index++) | |
2550 | sv_2mortal(SP[-index]); | |
2551 | } | |
1fa4e549 | 2552 | |
b37c2d43 AL |
2553 | /* XS subs don't have a CxSUB, so pop it */ |
2554 | POPBLOCK(cx, PL_curpm); | |
2555 | /* Push a mark for the start of arglist */ | |
2556 | PUSHMARK(mark); | |
2557 | PUTBACK; | |
2558 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2559 | LEAVE; |
5eff7df7 | 2560 | return retop; |
a0d0e21e LW |
2561 | } |
2562 | else { | |
b37c2d43 | 2563 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2564 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2565 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2566 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2567 | cx->cx_type = CXt_SUB; |
b150fb22 | 2568 | } |
a0d0e21e | 2569 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2570 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2571 | |
a0d0e21e LW |
2572 | CvDEPTH(cv)++; |
2573 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2574 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2575 | else { |
2b9dff67 | 2576 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2577 | sub_crush_depth(cv); |
26019298 | 2578 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2579 | } |
fd617465 DM |
2580 | SAVECOMPPAD(); |
2581 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2582 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2583 | { |
502c6561 | 2584 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2585 | |
3280af22 | 2586 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2587 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2588 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2589 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2590 | |
2591 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2592 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2593 | if (AvARRAY(av) != ary) { |
2594 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2595 | AvARRAY(av) = ary; |
a0d0e21e LW |
2596 | } |
2597 | if (items >= AvMAX(av) + 1) { | |
2598 | AvMAX(av) = items - 1; | |
2599 | Renew(ary,items+1,SV*); | |
2600 | AvALLOC(av) = ary; | |
9c6bc640 | 2601 | AvARRAY(av) = ary; |
a0d0e21e LW |
2602 | } |
2603 | } | |
a45cdc79 | 2604 | ++mark; |
a0d0e21e | 2605 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2606 | AvFILLp(av) = items - 1; |
d8b46c1b | 2607 | assert(!AvREAL(av)); |
b1464ded DM |
2608 | if (reified) { |
2609 | /* transfer 'ownership' of refcnts to new @_ */ | |
2610 | AvREAL_on(av); | |
2611 | AvREIFY_off(av); | |
2612 | } | |
a0d0e21e LW |
2613 | while (items--) { |
2614 | if (*mark) | |
2615 | SvTEMP_off(*mark); | |
2616 | mark++; | |
2617 | } | |
2618 | } | |
491527d0 | 2619 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2620 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2621 | if (PERLDB_GOTO) { |
b96d8cd9 | 2622 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2623 | if (gotocv) { |
2624 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2625 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2626 | PL_stack_sp--; |
2627 | } | |
491527d0 | 2628 | } |
1ce6579f | 2629 | } |
a0d0e21e LW |
2630 | RETURNOP(CvSTART(cv)); |
2631 | } | |
2632 | } | |
1614b0e3 | 2633 | else { |
0510663f | 2634 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2635 | if (!(do_dump || *label)) |
cea2e8a9 | 2636 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2637 | } |
a0d0e21e | 2638 | } |
533c011a | 2639 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2640 | if (! do_dump) |
cea2e8a9 | 2641 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2642 | } |
2643 | else | |
2644 | label = cPVOP->op_pv; | |
2645 | ||
f410a211 NC |
2646 | PERL_ASYNC_CHECK(); |
2647 | ||
a0d0e21e | 2648 | if (label && *label) { |
cbbf8932 | 2649 | OP *gotoprobe = NULL; |
3b2447bc | 2650 | bool leaving_eval = FALSE; |
33d34e4c | 2651 | bool in_block = FALSE; |
cbbf8932 | 2652 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2653 | |
2654 | /* find label */ | |
2655 | ||
d4c19fe8 | 2656 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2657 | *enterops = 0; |
2658 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2659 | cx = &cxstack[ix]; | |
6b35e009 | 2660 | switch (CxTYPE(cx)) { |
a0d0e21e | 2661 | case CXt_EVAL: |
3b2447bc | 2662 | leaving_eval = TRUE; |
971ecbe6 | 2663 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2664 | gotoprobe = (last_eval_cx ? |
2665 | last_eval_cx->blk_eval.old_eval_root : | |
2666 | PL_eval_root); | |
2667 | last_eval_cx = cx; | |
9c5794fe RH |
2668 | break; |
2669 | } | |
2670 | /* else fall through */ | |
c6fdafd0 | 2671 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2672 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2673 | case CXt_LOOP_FOR: |
2674 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2675 | case CXt_GIVEN: |
2676 | case CXt_WHEN: | |
a0d0e21e LW |
2677 | gotoprobe = cx->blk_oldcop->op_sibling; |
2678 | break; | |
2679 | case CXt_SUBST: | |
2680 | continue; | |
2681 | case CXt_BLOCK: | |
33d34e4c | 2682 | if (ix) { |
a0d0e21e | 2683 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2684 | in_block = TRUE; |
2685 | } else | |
3280af22 | 2686 | gotoprobe = PL_main_root; |
a0d0e21e | 2687 | break; |
b3933176 | 2688 | case CXt_SUB: |
9850bf21 | 2689 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2690 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2691 | break; | |
2692 | } | |
2693 | /* FALL THROUGH */ | |
7766f137 | 2694 | case CXt_FORMAT: |
0a753a76 | 2695 | case CXt_NULL: |
a651a37d | 2696 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2697 | default: |
2698 | if (ix) | |
cea2e8a9 | 2699 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2700 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2701 | break; |
2702 | } | |
2b597662 GS |
2703 | if (gotoprobe) { |
2704 | retop = dofindlabel(gotoprobe, label, | |
2705 | enterops, enterops + GOTO_DEPTH); | |
2706 | if (retop) | |
2707 | break; | |
2708 | } | |
3280af22 | 2709 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2710 | } |
2711 | if (!retop) | |
cea2e8a9 | 2712 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2713 | |
3b2447bc RH |
2714 | /* if we're leaving an eval, check before we pop any frames |
2715 | that we're not going to punt, otherwise the error | |
2716 | won't be caught */ | |
2717 | ||
2718 | if (leaving_eval && *enterops && enterops[1]) { | |
2719 | I32 i; | |
2720 | for (i = 1; enterops[i]; i++) | |
2721 | if (enterops[i]->op_type == OP_ENTERITER) | |
2722 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2723 | } | |
2724 | ||
b500e03b GG |
2725 | if (*enterops && enterops[1]) { |
2726 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2727 | if (enterops[i]) | |
2728 | deprecate("\"goto\" to jump into a construct"); | |
2729 | } | |
2730 | ||
a0d0e21e LW |
2731 | /* pop unwanted frames */ |
2732 | ||
2733 | if (ix < cxstack_ix) { | |
2734 | I32 oldsave; | |
2735 | ||
2736 | if (ix < 0) | |
2737 | ix = 0; | |
2738 | dounwind(ix); | |
2739 | TOPBLOCK(cx); | |
3280af22 | 2740 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2741 | LEAVE_SCOPE(oldsave); |
2742 | } | |
2743 | ||
2744 | /* push wanted frames */ | |
2745 | ||
748a9306 | 2746 | if (*enterops && enterops[1]) { |
0bd48802 | 2747 | OP * const oldop = PL_op; |
33d34e4c AE |
2748 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2749 | for (; enterops[ix]; ix++) { | |
533c011a | 2750 | PL_op = enterops[ix]; |
84902520 TB |
2751 | /* Eventually we may want to stack the needed arguments |
2752 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2753 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2754 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 2755 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 2756 | } |
533c011a | 2757 | PL_op = oldop; |
a0d0e21e LW |
2758 | } |
2759 | } | |
2760 | ||
2761 | if (do_dump) { | |
a5f75d66 | 2762 | #ifdef VMS |
6b88bc9c | 2763 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2764 | #endif |
3280af22 NIS |
2765 | PL_restartop = retop; |
2766 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2767 | |
2768 | my_unexec(); | |
2769 | ||
3280af22 NIS |
2770 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2771 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2772 | } |
2773 | ||
2774 | RETURNOP(retop); | |
2775 | } | |
2776 | ||
2777 | PP(pp_exit) | |
2778 | { | |
97aff369 | 2779 | dVAR; |
39644a26 | 2780 | dSP; |
a0d0e21e LW |
2781 | I32 anum; |
2782 | ||
2783 | if (MAXARG < 1) | |
2784 | anum = 0; | |
ff0cee69 | 2785 | else { |
a0d0e21e | 2786 | anum = SvIVx(POPs); |
d98f61e7 GS |
2787 | #ifdef VMS |
2788 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2789 | anum = 0; |
96e176bf | 2790 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2791 | #endif |
2792 | } | |
cc3604b1 | 2793 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2794 | #ifdef PERL_MAD |
2795 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2796 | if (anum || !(PL_minus_c && PL_madskills)) | |
2797 | my_exit(anum); | |
2798 | #else | |
a0d0e21e | 2799 | my_exit(anum); |
81d86705 | 2800 | #endif |
3280af22 | 2801 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2802 | RETURN; |
2803 | } | |
2804 | ||
a0d0e21e LW |
2805 | /* Eval. */ |
2806 | ||
0824fdcb | 2807 | STATIC void |
cea2e8a9 | 2808 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2809 | { |
504618e9 | 2810 | const char *s = SvPVX_const(sv); |
890ce7af | 2811 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2812 | I32 line = 1; |
a0d0e21e | 2813 | |
7918f24d NC |
2814 | PERL_ARGS_ASSERT_SAVE_LINES; |
2815 | ||
a0d0e21e | 2816 | while (s && s < send) { |
f54cb97a | 2817 | const char *t; |
b9f83d2f | 2818 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2819 | |
1d963ff3 | 2820 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2821 | if (t) |
2822 | t++; | |
2823 | else | |
2824 | t = send; | |
2825 | ||
2826 | sv_setpvn(tmpstr, s, t - s); | |
2827 | av_store(array, line++, tmpstr); | |
2828 | s = t; | |
2829 | } | |
2830 | } | |
2831 | ||
22f16304 RU |
2832 | /* |
2833 | =for apidoc docatch | |
2834 | ||
2835 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
2836 | ||
2837 | 0 is used as continue inside eval, | |
2838 | ||
2839 | 3 is used for a die caught by an inner eval - continue inner loop | |
2840 | ||
2841 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
2842 | establish a local jmpenv to handle exception traps. | |
2843 | ||
2844 | =cut | |
2845 | */ | |
0824fdcb | 2846 | STATIC OP * |
cea2e8a9 | 2847 | S_docatch(pTHX_ OP *o) |
1e422769 | 2848 | { |
97aff369 | 2849 | dVAR; |
6224f72b | 2850 | int ret; |
06b5626a | 2851 | OP * const oldop = PL_op; |
db36c5a1 | 2852 | dJMPENV; |
1e422769 | 2853 | |
1e422769 | 2854 | #ifdef DEBUGGING |
54310121 | 2855 | assert(CATCH_GET == TRUE); |
1e422769 | 2856 | #endif |
312caa8e | 2857 | PL_op = o; |
8bffa5f8 | 2858 | |
14dd3ad8 | 2859 | JMPENV_PUSH(ret); |
6224f72b | 2860 | switch (ret) { |
312caa8e | 2861 | case 0: |
abd70938 DM |
2862 | assert(cxstack_ix >= 0); |
2863 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2864 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2865 | redo_body: |
85aaa934 | 2866 | CALLRUNOPS(aTHX); |
312caa8e CS |
2867 | break; |
2868 | case 3: | |
8bffa5f8 | 2869 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
2870 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
2871 | PL_restartjmpenv = NULL; | |
312caa8e CS |
2872 | PL_op = PL_restartop; |
2873 | PL_restartop = 0; | |
2874 | goto redo_body; | |
2875 | } | |
2876 | /* FALL THROUGH */ | |
2877 | default: | |
14dd3ad8 | 2878 | JMPENV_POP; |
533c011a | 2879 | PL_op = oldop; |
6224f72b | 2880 | JMPENV_JUMP(ret); |
1e422769 | 2881 | /* NOTREACHED */ |
1e422769 | 2882 | } |
14dd3ad8 | 2883 | JMPENV_POP; |
533c011a | 2884 | PL_op = oldop; |
5f66b61c | 2885 | return NULL; |
1e422769 | 2886 | } |
2887 | ||
ee23ad3b NC |
2888 | /* James Bond: Do you expect me to talk? |
2889 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
2890 | ||
2891 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
2892 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
2893 | ||
2894 | Currently it is not used outside the core code. Best if it stays that way. | |
2895 | */ | |
c277df42 | 2896 | OP * |
bfed75c6 | 2897 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2898 | /* sv Text to convert to OP tree. */ |
2899 | /* startop op_free() this to undo. */ | |
2900 | /* code Short string id of the caller. */ | |
2901 | { | |
27da23d5 | 2902 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2903 | PERL_CONTEXT *cx; |
2904 | SV **newsp; | |
b094c71d | 2905 | I32 gimme = G_VOID; |
c277df42 IZ |
2906 | I32 optype; |
2907 | OP dummy; | |
83ee9e09 GS |
2908 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2909 | char *tmpbuf = tbuf; | |
c277df42 | 2910 | char *safestr; |
a3985cdc | 2911 | int runtime; |
601f1833 | 2912 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2913 | STRLEN len; |
634d6919 | 2914 | bool need_catch; |
c277df42 | 2915 | |
7918f24d NC |
2916 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2917 | ||
d343c3ef | 2918 | ENTER_with_name("eval"); |
5486870f | 2919 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2920 | SAVETMPS; |
2921 | /* switch to eval mode */ | |
2922 | ||
923e4eb5 | 2923 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2924 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2925 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2926 | } |
83ee9e09 | 2927 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2928 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2929 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2930 | code, (unsigned long)++PL_evalseq, | |
2931 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2932 | tmpbuf = SvPVX(sv); | |
fc009855 | 2933 | len = SvCUR(sv); |
83ee9e09 GS |
2934 | } |
2935 | else | |
d9fad198 JH |
2936 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2937 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2938 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2939 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2940 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2941 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2942 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2943 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2944 | (i.e. before run-time proper). To work around the coredump that | |
2945 | ensues, we always turn GvMULTI_on for any globals that were | |
2946 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2947 | safestr = savepvn(tmpbuf, len); |
2948 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2949 | SAVEHINTS(); |
d1ca3daa | 2950 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2951 | PL_opsave = op; |
d1ca3daa | 2952 | #else |
7766f137 | 2953 | SAVEVPTR(PL_op); |
d1ca3daa | 2954 | #endif |
c277df42 | 2955 | |
a3985cdc | 2956 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2957 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2958 | if (runtime) |
d819b83a | 2959 | runcv = find_runcv(NULL); |
a3985cdc | 2960 | |
533c011a | 2961 | PL_op = &dummy; |
13b51b79 | 2962 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2963 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2964 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 2965 | PUSHEVAL(cx, 0); |
634d6919 GG |
2966 | need_catch = CATCH_GET; |
2967 | CATCH_SET(TRUE); | |
a3985cdc DM |
2968 | |
2969 | if (runtime) | |
410be5db | 2970 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 2971 | else |
410be5db | 2972 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 2973 | CATCH_SET(need_catch); |
13b51b79 | 2974 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2975 | POPEVAL(cx); |
c277df42 IZ |
2976 | |
2977 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2978 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2979 | lex_end(); |
f3548bdc | 2980 | /* XXX DAPM do this properly one year */ |
502c6561 | 2981 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 2982 | LEAVE_with_name("eval"); |
923e4eb5 | 2983 | if (IN_PERL_COMPILETIME) |
623e6609 | 2984 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2985 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2986 | op = PL_opsave; |
d1ca3daa | 2987 | #endif |
9d4ba2ae AL |
2988 | PERL_UNUSED_VAR(newsp); |
2989 | PERL_UNUSED_VAR(optype); | |
2990 | ||
410be5db | 2991 | return PL_eval_start; |
c277df42 IZ |
2992 | } |
2993 | ||
a3985cdc DM |
2994 | |
2995 | /* | |
2996 | =for apidoc find_runcv | |
2997 | ||
2998 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2999 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3000 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3001 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3002 | than in the scope of the debugger itself). |
a3985cdc DM |
3003 | |
3004 | =cut | |
3005 | */ | |
3006 | ||
3007 | CV* | |
d819b83a | 3008 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3009 | { |
97aff369 | 3010 | dVAR; |
a3985cdc | 3011 | PERL_SI *si; |
a3985cdc | 3012 | |
d819b83a DM |
3013 | if (db_seqp) |
3014 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3015 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3016 | I32 ix; |
a3985cdc | 3017 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3018 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3019 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3020 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3021 | /* skip DB:: code */ |
3022 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3023 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3024 | continue; | |
3025 | } | |
3026 | return cv; | |
3027 | } | |
a3985cdc DM |
3028 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3029 | return PL_compcv; | |
3030 | } | |
3031 | } | |
3032 | return PL_main_cv; | |
3033 | } | |
3034 | ||
3035 | ||
27e90453 DM |
3036 | /* Run yyparse() in a setjmp wrapper. Returns: |
3037 | * 0: yyparse() successful | |
3038 | * 1: yyparse() failed | |
3039 | * 3: yyparse() died | |
3040 | */ | |
3041 | STATIC int | |
3042 | S_try_yyparse(pTHX) | |
3043 | { | |
3044 | int ret; | |
3045 | dJMPENV; | |
3046 | ||
3047 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3048 | JMPENV_PUSH(ret); | |
3049 | switch (ret) { | |
3050 | case 0: | |
3051 | ret = yyparse() ? 1 : 0; | |
3052 | break; | |
3053 | case 3: | |
3054 | break; | |
3055 | default: | |
3056 | JMPENV_POP; | |
3057 | JMPENV_JUMP(ret); | |
3058 | /* NOTREACHED */ | |
3059 | } | |
3060 | JMPENV_POP; | |
3061 | return ret; | |
3062 | } | |
3063 | ||
3064 | ||
a3985cdc DM |
3065 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3066 | * In the last case, startop is non-null, and contains the address of | |
3067 | * a pointer that should be set to the just-compiled code. | |
3068 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3069 | * Returns a bool indicating whether the compile was successful; if so, |
3070 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3071 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3072 | */ |
3073 | ||
410be5db | 3074 | STATIC bool |
a3985cdc | 3075 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3076 | { |
27da23d5 | 3077 | dVAR; dSP; |
46c461b5 | 3078 | OP * const saveop = PL_op; |
27e90453 DM |
3079 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3080 | int yystatus; | |
a0d0e21e | 3081 | |
27e90453 | 3082 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3083 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3084 | : EVAL_INEVAL); | |
a0d0e21e | 3085 | |
1ce6579f | 3086 | PUSHMARK(SP); |
3087 | ||
3280af22 | 3088 | SAVESPTR(PL_compcv); |
ea726b52 | 3089 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3090 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3091 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3092 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3093 | ||
a3985cdc | 3094 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3095 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3096 | |
dd2155a4 | 3097 | /* set up a scratch pad */ |
a0d0e21e | 3098 | |
dd2155a4 | 3099 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3100 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3101 | |
07055b4c | 3102 | |
81d86705 NC |
3103 | if (!PL_madskills) |
3104 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3105 | |
a0d0e21e LW |
3106 | /* make sure we compile in the right package */ |
3107 | ||
ed094faf | 3108 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3109 | SAVESPTR(PL_curstash); |
ed094faf | 3110 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3111 | } |
3c10abe3 | 3112 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3113 | SAVESPTR(PL_beginav); |
3114 | PL_beginav = newAV(); | |
3115 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3116 | SAVESPTR(PL_unitcheckav); |
3117 | PL_unitcheckav = newAV(); | |
3118 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3119 | |
81d86705 | 3120 | #ifdef PERL_MAD |
9da243ce | 3121 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3122 | PL_madskills = 0; |
3123 | #endif | |
3124 | ||
a0d0e21e LW |
3125 | /* try to compile it */ |
3126 | ||
5f66b61c | 3127 | PL_eval_root = NULL; |
3280af22 | 3128 | PL_curcop = &PL_compiling; |
fc15ae8f | 3129 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3130 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3131 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3132 | else |
3133 | CLEAR_ERRSV(); | |
27e90453 | 3134 | |
52db365a BM |
3135 | CALL_BLOCK_HOOKS(eval, saveop); |
3136 | ||
27e90453 DM |
3137 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3138 | * so honour CATCH_GET and trap it here if necessary */ | |
3139 | ||
3140 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX) : yyparse(); | |
3141 | ||
3142 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3143 | SV **newsp; /* Used by POPBLOCK. */ |
b6494f15 | 3144 | PERL_CONTEXT *cx = NULL; |
27e90453 | 3145 | I32 optype; /* Used by POPEVAL. */ |
b6494f15 | 3146 | SV *namesv = NULL; |
9d4ba2ae | 3147 | const char *msg; |
bfed75c6 | 3148 | |
27e90453 DM |
3149 | PERL_UNUSED_VAR(newsp); |
3150 | PERL_UNUSED_VAR(optype); | |
3151 | ||
c86ffc32 DM |
3152 | /* note that if yystatus == 3, then the EVAL CX block has already |
3153 | * been popped, and various vars restored */ | |
533c011a | 3154 | PL_op = saveop; |
27e90453 | 3155 | if (yystatus != 3) { |
c86ffc32 DM |
3156 | if (PL_eval_root) { |
3157 | op_free(PL_eval_root); | |
3158 | PL_eval_root = NULL; | |
3159 | } | |
27e90453 DM |
3160 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3161 | if (!startop) { | |
3162 | POPBLOCK(cx,PL_curpm); | |
3163 | POPEVAL(cx); | |
b6494f15 | 3164 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3165 | } |
c277df42 | 3166 | } |
a0d0e21e | 3167 | lex_end(); |
27e90453 DM |
3168 | if (yystatus != 3) |
3169 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3170 | |
3171 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3172 | if (in_require) { |
b6494f15 VP |
3173 | if (!cx) { |
3174 | /* If cx is still NULL, it means that we didn't go in the | |
3175 | * POPEVAL branch. */ | |
3176 | cx = &cxstack[cxstack_ix]; | |
3177 | assert(CxTYPE(cx) == CXt_EVAL); | |
3178 | namesv = cx->blk_eval.old_namesv; | |
3179 | } | |
3180 | (void)hv_store(GvHVn(PL_incgv), | |
3181 | SvPVX_const(namesv), SvCUR(namesv), | |
3182 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3183 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3184 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3185 | } |
3186 | else if (startop) { | |
27e90453 DM |
3187 | if (yystatus != 3) { |
3188 | POPBLOCK(cx,PL_curpm); | |
3189 | POPEVAL(cx); | |
3190 | } | |
5a844595 GS |
3191 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3192 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3193 | } |
9d7f88dd | 3194 | else { |
9d7f88dd | 3195 | if (!*msg) { |
6502358f | 3196 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3197 | } |
3198 | } | |
410be5db DM |
3199 | PUSHs(&PL_sv_undef); |
3200 | PUTBACK; | |
3201 | return FALSE; | |
a0d0e21e | 3202 | } |
57843af0 | 3203 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3204 | if (startop) { |
3280af22 | 3205 | *startop = PL_eval_root; |
c277df42 | 3206 | } else |
3280af22 | 3207 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3208 | |
3209 | /* Set the context for this new optree. | |
021f53de GG |
3210 | * Propagate the context from the eval(). */ |
3211 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3212 | scalarvoid(PL_eval_root); |
7df0357e | 3213 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3214 | list(PL_eval_root); |
a0d0e21e | 3215 | else |
3280af22 | 3216 | scalar(PL_eval_root); |
a0d0e21e LW |
3217 | |
3218 | DEBUG_x(dump_eval()); | |
3219 | ||
55497cff | 3220 | /* Register with debugger: */ |
6482a30d | 3221 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3222 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3223 | if (cv) { |
3224 | dSP; | |
924508f0 | 3225 | PUSHMARK(SP); |
ad64d0ec | 3226 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3227 | PUTBACK; |
ad64d0ec | 3228 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3229 | } |
3230 | } | |
3231 | ||
3c10abe3 AG |
3232 | if (PL_unitcheckav) |
3233 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
3234 | ||
a0d0e21e LW |
3235 | /* compiled okay, so do it */ |
3236 | ||
3280af22 NIS |
3237 | CvDEPTH(PL_compcv) = 1; |
3238 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3239 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3240 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3241 | |
410be5db DM |
3242 | PUTBACK; |
3243 | return TRUE; | |
a0d0e21e LW |
3244 | } |
3245 | ||
a6c40364 | 3246 | STATIC PerlIO * |
0786552a | 3247 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3248 | { |
3249 | Stat_t st; | |
c445ea15 | 3250 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3251 | |
7918f24d NC |
3252 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3253 | ||
6b845e56 | 3254 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3255 | return NULL; |
ce8abf5f SP |
3256 | } |
3257 | ||
0786552a | 3258 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3259 | } |
3260 | ||
75c20bac | 3261 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3262 | STATIC PerlIO * |
0786552a | 3263 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3264 | { |
b295d113 TH |
3265 | PerlIO *fp; |
3266 | ||
7918f24d NC |
3267 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3268 | ||
ce9440c8 | 3269 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3270 | SV *const pmcsv = newSV(namelen + 2); |
3271 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3272 | Stat_t pmcstat; |
50b8ed39 NC |
3273 | |
3274 | memcpy(pmc, name, namelen); | |
3275 | pmc[namelen] = 'c'; | |
3276 | pmc[namelen + 1] = '\0'; | |
3277 | ||
a6c40364 | 3278 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3279 | fp = check_type_and_open(name); |
a6c40364 GS |
3280 | } |
3281 | else { | |
0786552a | 3282 | fp = check_type_and_open(pmc); |
b295d113 | 3283 | } |
a6c40364 GS |
3284 | SvREFCNT_dec(pmcsv); |
3285 | } | |
3286 | else { | |
0786552a | 3287 | fp = check_type_and_open(name); |
b295d113 | 3288 | } |
b295d113 | 3289 | return fp; |
75c20bac | 3290 | } |
7925835c | 3291 | #else |
75c20bac | 3292 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3293 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3294 | |
a0d0e21e LW |
3295 | PP(pp_require) |
3296 | { | |
27da23d5 | 3297 | dVAR; dSP; |
c09156bb | 3298 | register PERL_CONTEXT *cx; |
a0d0e21e | 3299 | SV *sv; |
5c144d81 | 3300 | const char *name; |
6132ea6c | 3301 | STRLEN len; |
4492be7a JM |
3302 | char * unixname; |
3303 | STRLEN unixlen; | |
62f5ad7a | 3304 | #ifdef VMS |
4492be7a | 3305 | int vms_unixname = 0; |
62f5ad7a | 3306 | #endif |
c445ea15 AL |
3307 | const char *tryname = NULL; |
3308 | SV *namesv = NULL; | |
f54cb97a | 3309 | const I32 gimme = GIMME_V; |
bbed91b5 | 3310 | int filter_has_file = 0; |
c445ea15 | 3311 | PerlIO *tryrsfp = NULL; |
34113e50 | 3312 | SV *filter_cache = NULL; |
c445ea15 AL |
3313 | SV *filter_state = NULL; |
3314 | SV *filter_sub = NULL; | |
3315 | SV *hook_sv = NULL; | |
6ec9efec JH |
3316 | SV *encoding; |
3317 | OP *op; | |
a0d0e21e LW |
3318 | |
3319 | sv = POPs; | |
d7aa5382 | 3320 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3321 | sv = new_version(sv); |
3322 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3323 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3324 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3325 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3326 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3327 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3328 | } |
3329 | else { | |
d1029faa JP |
3330 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3331 | I32 first = 0; | |
3332 | AV *lav; | |
3333 | SV * const req = SvRV(sv); | |
85fbaab2 | 3334 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3335 | |
3336 | /* get the left hand term */ | |
502c6561 | 3337 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3338 | |
3339 | first = SvIV(*av_fetch(lav,0,0)); | |
3340 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3341 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3342 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3343 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3344 | ) { | |
3345 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3346 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3347 | SVfARG(vnormal(PL_patchlevel))); | |
3348 | } | |
3349 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3350 | SV *hintsv; |
d1029faa JP |
3351 | I32 second = 0; |
3352 | ||
3353 | if (av_len(lav)>=1) | |
3354 | second = SvIV(*av_fetch(lav,1,0)); | |
3355 | ||
3356 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3357 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3358 | (int)first, (int)second); | |
d1029faa JP |
3359 | upg_version(hintsv, TRUE); |
3360 | ||
3361 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3362 | "--this is only %"SVf", stopped", | |
3363 | SVfARG(vnormal(req)), | |
af61dbfd | 3364 | SVfARG(vnormal(sv_2mortal(hintsv))), |
d1029faa JP |
3365 | SVfARG(vnormal(PL_patchlevel))); |
3366 | } | |
3367 | } | |
468aa647 | 3368 | } |
d7aa5382 | 3369 | |
faee19b5 | 3370 | /* We do this only with "use", not "require" or "no". */ |
da8fb5d8 DG |
3371 | if (PL_compcv && !(cUNOP->op_first->op_private & OPpCONST_NOVER)) { |
3372 | /* If we request a version >= 5.9.5, load feature.pm with the | |
3373 | * feature bundle that corresponds to the required version. */ | |
3374 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { | |
3375 | SV *const importsv = vnormal(sv); | |
3376 | *SvPVX_mutable(importsv) = ':'; | |
3377 | ENTER_with_name("load_feature"); | |
3378 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); | |
3379 | LEAVE_with_name("load_feature"); | |
3380 | } | |
3381 | /* If a version >= 5.11.0 is requested, strictures are on by default! */ | |
3382 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.011000), FALSE))) >= 0) { | |
3383 | PL_hints |= (HINT_STRICT_REFS | HINT_STRICT_SUBS | HINT_STRICT_VARS); | |
3384 | } | |
53eb19dd S |
3385 | } |
3386 | ||
7dfde25d | 3387 | RETPUSHYES; |
a0d0e21e | 3388 | } |
5c144d81 | 3389 | name = SvPV_const(sv, len); |
6132ea6c | 3390 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3391 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3392 | TAINT_PROPER("require"); |
4492be7a JM |
3393 | |
3394 | ||
3395 | #ifdef VMS | |
3396 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3397 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3398 | * can result in a module being pulled in more than once. | |
3399 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3400 | * name can be translated to UNIX. | |
3401 | */ | |
3402 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3403 | unixlen = strlen(unixname); | |
3404 | vms_unixname = 1; | |
3405 | } | |
3406 | else | |
3407 | #endif | |
3408 | { | |
3409 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3410 | * through. | |
3411 | */ | |
3412 | unixname = (char *) name; | |
3413 | unixlen = len; | |
3414 | } | |
44f8325f | 3415 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3416 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3417 | unixname, unixlen, 0); | |
44f8325f AL |
3418 | if ( svp ) { |
3419 | if (*svp != &PL_sv_undef) | |
3420 | RETPUSHYES; | |
3421 | else | |
087b5369 RD |
3422 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3423 | "Compilation failed in require", unixname); | |
44f8325f | 3424 | } |
4d8b06f1 | 3425 | } |
a0d0e21e LW |
3426 | |
3427 | /* prepare to compile file */ | |
3428 | ||
be4b629d | 3429 | if (path_is_absolute(name)) { |
46fc3d4c | 3430 | tryname = name; |
0786552a | 3431 | tryrsfp = doopen_pm(name, len); |
bf4acbe4 | 3432 | } |
be4b629d | 3433 | if (!tryrsfp) { |
44f8325f | 3434 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3435 | I32 i; |
748a9306 | 3436 | #ifdef VMS |
4492be7a | 3437 | if (vms_unixname) |
46fc3d4c | 3438 | #endif |
3439 | { | |
d0328fd7 | 3440 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3441 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3442 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3443 | |
ad64d0ec | 3444 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3445 | mg_get(dirsv); |
bbed91b5 KF |
3446 | if (SvROK(dirsv)) { |
3447 | int count; | |
a3b58a99 | 3448 | SV **svp; |
bbed91b5 KF |
3449 | SV *loader = dirsv; |
3450 | ||
e14e2dc8 NC |
3451 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3452 | && !sv_isobject(loader)) | |
3453 | { | |
502c6561 | 3454 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3455 | } |
3456 | ||
b900a521 | 3457 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3458 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3459 | tryname = SvPVX_const(namesv); |
c445ea15 | 3460 | tryrsfp = NULL; |
bbed91b5 | 3461 | |
d343c3ef | 3462 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3463 | SAVETMPS; |
3464 | EXTEND(SP, 2); | |
3465 | ||
3466 | PUSHMARK(SP); | |
3467 | PUSHs(dirsv); | |
3468 | PUSHs(sv); | |
3469 | PUTBACK; | |
e982885c NC |
3470 | if (sv_isobject(loader)) |
3471 | count = call_method("INC", G_ARRAY); | |
3472 | else | |
3473 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3474 | SPAGAIN; |
3475 | ||
3476 | if (count > 0) { | |
3477 | int i = 0; | |
3478 | SV *arg; | |
3479 | ||
3480 | SP -= count - 1; | |
3481 | arg = SP[i++]; | |
3482 | ||
34113e50 NC |
3483 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3484 | && !isGV_with_GP(SvRV(arg))) { | |
3485 | filter_cache = SvRV(arg); | |
74c765eb | 3486 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3487 | |
3488 | if (i < count) { | |
3489 | arg = SP[i++]; | |
3490 | } | |
3491 | } | |
3492 | ||
6e592b3a | 3493 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3494 | arg = SvRV(arg); |
3495 | } | |
3496 | ||
6e592b3a | 3497 | if (isGV_with_GP(arg)) { |
159b6efe | 3498 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3499 | |
3500 | ++filter_has_file; | |
3501 | ||
3502 | if (io) { | |
3503 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3504 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3505 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3506 | } |
0f7de14d NC |
3507 | IoIFP(io) = NULL; |
3508 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3509 | } |
3510 | ||
3511 | if (i < count) { | |
3512 | arg = SP[i++]; | |
3513 | } | |
3514 | } | |
3515 | ||
3516 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3517 | filter_sub = arg; | |
74c765eb | 3518 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3519 | |
3520 | if (i < count) { | |
3521 | filter_state = SP[i]; | |
b37c2d43 | 3522 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3523 | } |
34113e50 | 3524 | } |
bbed91b5 | 3525 | |
34113e50 NC |
3526 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3527 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3528 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3529 | } |
1d06aecd | 3530 | SP--; |
bbed91b5 KF |
3531 | } |
3532 | ||
3533 | PUTBACK; | |
3534 | FREETMPS; | |
d343c3ef | 3535 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3536 | |
c5f55552 NC |
3537 | /* Adjust file name if the hook has set an %INC entry. |
3538 | This needs to happen after the FREETMPS above. */ | |
3539 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3540 | if (svp) | |
3541 | tryname = SvPV_nolen_const(*svp); | |
3542 | ||
bbed91b5 | 3543 | if (tryrsfp) { |
89ccab8c | 3544 | hook_sv = dirsv; |
bbed91b5 KF |
3545 | break; |
3546 | } | |
3547 | ||
3548 | filter_has_file = 0; | |
34113e50 NC |
3549 | if (filter_cache) { |
3550 | SvREFCNT_dec(filter_cache); | |
3551 | filter_cache = NULL; | |
3552 | } | |
bbed91b5 KF |
3553 | if (filter_state) { |
3554 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3555 | filter_state = NULL; |
bbed91b5 KF |
3556 | } |
3557 | if (filter_sub) { | |
3558 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3559 | filter_sub = NULL; |
bbed91b5 KF |
3560 | } |
3561 | } | |
3562 | else { | |
be4b629d | 3563 | if (!path_is_absolute(name) |
be4b629d | 3564 | ) { |
b640a14a NC |
3565 | const char *dir; |
3566 | STRLEN dirlen; | |
3567 | ||
3568 | if (SvOK(dirsv)) { | |
3569 | dir = SvPV_const(dirsv, dirlen); | |
3570 | } else { | |
3571 | dir = ""; | |
3572 | dirlen = 0; | |
3573 | } | |
3574 | ||
e37778c2 | 3575 | #ifdef VMS |
bbed91b5 | 3576 | char *unixdir; |
c445ea15 | 3577 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3578 | continue; |
3579 | sv_setpv(namesv, unixdir); | |
3580 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3581 | #else |
3582 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3583 | if (PL_origfilename[0] && |
3584 | PL_origfilename[1] == ':' && | |
3585 | !(dir[0] && dir[1] == ':')) | |
3586 | Perl_sv_setpvf(aTHX_ namesv, | |
3587 | "%c:%s\\%s", | |
3588 | PL_origfilename[0], | |
3589 | dir, name); | |
3590 | else | |
3591 | Perl_sv_setpvf(aTHX_ namesv, | |
3592 | "%s\\%s", | |
3593 | dir, name); | |
e37778c2 | 3594 | # else |
b640a14a NC |
3595 | /* The equivalent of |
3596 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3597 | but without the need to parse the format string, or | |
3598 | call strlen on either pointer, and with the correct | |
3599 | allocation up front. */ | |
3600 | { | |
3601 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3602 | ||
3603 | memcpy(tmp, dir, dirlen); | |
3604 | tmp +=dirlen; | |
3605 | *tmp++ = '/'; | |
3606 | /* name came from an SV, so it will have a '\0' at the | |
3607 | end that we can copy as part of this memcpy(). */ | |
3608 | memcpy(tmp, name, len + 1); | |
3609 | ||
3610 | SvCUR_set(namesv, dirlen + len + 1); | |
3611 | ||
3612 | /* Don't even actually have to turn SvPOK_on() as we | |
3613 | access it directly with SvPVX() below. */ | |
3614 | } | |
27da23d5 | 3615 | # endif |
bf4acbe4 | 3616 | #endif |
bbed91b5 | 3617 | TAINT_PROPER("require"); |
349d4f2f | 3618 | tryname = SvPVX_const(namesv); |
0786552a | 3619 | tryrsfp = doopen_pm(tryname, SvCUR(namesv)); |
bbed91b5 | 3620 | if (tryrsfp) { |
e63be746 RGS |
3621 | if (tryname[0] == '.' && tryname[1] == '/') { |
3622 | ++tryname; | |
3623 | while (*++tryname == '/'); | |
3624 | } | |
bbed91b5 KF |
3625 | break; |
3626 | } | |
ff806af2 DM |
3627 | else if (errno == EMFILE) |
3628 | /* no point in trying other paths if out of handles */ | |
3629 | break; | |
be4b629d | 3630 | } |
46fc3d4c | 3631 | } |
a0d0e21e LW |
3632 | } |
3633 | } | |
3634 | } | |
ec72681b NC |
3635 | if (tryrsfp) { |
3636 | SAVECOPFILE_FREE(&PL_compiling); | |
3637 | CopFILE_set(&PL_compiling, tryname); | |
3638 | } | |
46fc3d4c | 3639 | SvREFCNT_dec(namesv); |
a0d0e21e | 3640 | if (!tryrsfp) { |
533c011a | 3641 | if (PL_op->op_type == OP_REQUIRE) { |
e31de809 | 3642 | if(errno == EMFILE) { |
c9d5e35e NC |
3643 | /* diag_listed_as: Can't locate %s */ |
3644 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(errno)); | |
e31de809 SP |
3645 | } else { |
3646 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3647 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3648 | I32 i; |
c9d5e35e NC |
3649 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
3650 | for (i = 0; i <= AvFILL(ar); i++) { | |
3651 | sv_catpvs(inc, " "); | |
3652 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
3653 | } | |
3654 | ||
3655 | /* diag_listed_as: Can't locate %s */ | |
3656 | DIE(aTHX_ | |
3657 | "Can't locate %s in @INC%s%s (@INC contains:%" SVf ")", | |
3658 | name, | |
686c4ca0 NC |
3659 | (memEQ(name + len - 2, ".h", 3) |
3660 | ? " (change .h to .ph maybe?) (did you run h2ph?)" : ""), | |
3661 | (memEQ(name + len - 3, ".ph", 4) | |
c9d5e35e NC |
3662 | ? " (did you run h2ph?)" : ""), |
3663 | inc | |
3664 | ); | |
3665 | } | |
2683423c | 3666 | } |
c9d5e35e | 3667 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
3668 | } |
3669 | ||
3670 | RETPUSHUNDEF; | |
3671 | } | |
d8bfb8bd | 3672 | else |
93189314 | 3673 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3674 | |
3675 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3676 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3677 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3678 | if (!hook_sv) { |
4492be7a JM |
3679 | (void)hv_store(GvHVn(PL_incgv), |
3680 | unixname, unixlen, newSVpv(CopFILE(&PL_compiling),0),0); | |
44f8325f | 3681 | } else { |
4492be7a | 3682 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3683 | if (!svp) |
4492be7a JM |
3684 | (void)hv_store(GvHVn(PL_incgv), |
3685 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3686 | } |
a0d0e21e | 3687 | |
d343c3ef | 3688 | ENTER_with_name("eval"); |
a0d0e21e | 3689 | SAVETMPS; |
5486870f | 3690 | lex_start(NULL, tryrsfp, TRUE); |
e50aee73 | 3691 | |
b3ac6de7 | 3692 | SAVEHINTS(); |
3280af22 | 3693 | PL_hints = 0; |
f747ebd6 | 3694 | hv_clear(GvHV(PL_hintgv)); |
27eaf14c | 3695 | |
68da3b2f | 3696 | SAVECOMPILEWARNINGS(); |
0453d815 | 3697 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3698 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3699 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3700 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3701 | else |
d3a7d8c7 | 3702 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3703 | |
34113e50 | 3704 | if (filter_sub || filter_cache) { |
4464f08e NC |
3705 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3706 | than hanging another SV from it. In turn, filter_add() optionally | |
3707 | takes the SV to use as the filter (or creates a new SV if passed | |
3708 | NULL), so simply pass in whatever value filter_cache has. */ | |
3709 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3710 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3711 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3712 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
3713 | } |
3714 | ||
3715 | /* switch to eval mode */ | |
a0d0e21e | 3716 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3717 | PUSHEVAL(cx, name); |
f39bc417 | 3718 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3719 | |
57843af0 GS |
3720 | SAVECOPLINE(&PL_compiling); |
3721 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3722 | |
3723 | PUTBACK; | |
6ec9efec JH |
3724 | |
3725 | /* Store and reset encoding. */ | |
3726 | encoding = PL_encoding; | |
c445ea15 | 3727 | PL_encoding = NULL; |
6ec9efec | 3728 | |
410be5db DM |
3729 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3730 | op = DOCATCH(PL_eval_start); | |
3731 | else | |
3732 | op = PL_op->op_next; | |
bfed75c6 | 3733 | |
6ec9efec JH |
3734 | /* Restore encoding. */ |
3735 | PL_encoding = encoding; | |
3736 | ||
3737 | return op; | |
a0d0e21e LW |
3738 | } |
3739 | ||
996c9baa VP |
3740 | /* This is a op added to hold the hints hash for |
3741 | pp_entereval. The hash can be modified by the code | |
3742 | being eval'ed, so we return a copy instead. */ | |
3743 | ||
3744 | PP(pp_hintseval) | |
3745 | { | |
3746 | dVAR; | |
3747 | dSP; | |
ad64d0ec | 3748 | mXPUSHs(MUTABLE_SV(Perl_hv_copy_hints_hv(aTHX_ MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
3749 | RETURN; |
3750 | } | |
3751 | ||
3752 | ||
a0d0e21e LW |
3753 | PP(pp_entereval) |
3754 | { | |
27da23d5 | 3755 | dVAR; dSP; |
c09156bb | 3756 | register PERL_CONTEXT *cx; |
0d863452 | 3757 | SV *sv; |
890ce7af | 3758 | const I32 gimme = GIMME_V; |
fd06b02c | 3759 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 GS |
3760 | char tbuf[TYPE_DIGITS(long) + 12]; |
3761 | char *tmpbuf = tbuf; | |
a0d0e21e | 3762 | STRLEN len; |
a3985cdc | 3763 | CV* runcv; |
d819b83a | 3764 | U32 seq; |
c445ea15 | 3765 | HV *saved_hh = NULL; |
e389bba9 | 3766 | |
0d863452 | 3767 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 3768 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
3769 | } |
3770 | sv = POPs; | |
895b760f DM |
3771 | if (!SvPOK(sv)) { |
3772 | /* make sure we've got a plain PV (no overload etc) before testing | |
3773 | * for taint. Making a copy here is probably overkill, but better | |
3774 | * safe than sorry */ | |
0479a84a NC |
3775 | STRLEN len; |
3776 | const char * const p = SvPV_const(sv, len); | |
3777 | ||
3778 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
895b760f | 3779 | } |
a0d0e21e | 3780 | |
af2d3def | 3781 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3782 | TAINT_PROPER("eval"); |
a0d0e21e | 3783 | |
d343c3ef | 3784 | ENTER_with_name("eval"); |
5486870f | 3785 | lex_start(sv, NULL, FALSE); |
748a9306 | 3786 | SAVETMPS; |
ac27b0f5 | 3787 | |
a0d0e21e LW |
3788 | /* switch to eval mode */ |
3789 | ||
83ee9e09 | 3790 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3791 | SV * const temp_sv = sv_newmortal(); |
3792 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3793 | (unsigned long)++PL_evalseq, |
3794 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3795 | tmpbuf = SvPVX(temp_sv); |
3796 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3797 | } |
3798 | else | |
d9fad198 | 3799 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3800 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3801 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3802 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3803 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3804 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3805 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3806 | (i.e. before run-time proper). To work around the coredump that | |
3807 | ensues, we always turn GvMULTI_on for any globals that were | |
3808 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 3809 | SAVEHINTS(); |
533c011a | 3810 | PL_hints = PL_op->op_targ; |
cda55376 AV |
3811 | if (saved_hh) { |
3812 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3813 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
0d863452 | 3814 | GvHV(PL_hintgv) = saved_hh; |
cda55376 | 3815 | } |
68da3b2f | 3816 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3817 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3818 | if (PL_compiling.cop_hints_hash) { |
3819 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3820 | } |
47550813 NC |
3821 | if (Perl_fetch_cop_label(aTHX_ PL_curcop->cop_hints_hash, NULL, NULL)) { |
3822 | /* The label, if present, is the first entry on the chain. So rather | |
3823 | than writing a blank label in front of it (which involves an | |
3824 | allocation), just use the next entry in the chain. */ | |
3825 | PL_compiling.cop_hints_hash | |
3826 | = PL_curcop->cop_hints_hash->refcounted_he_next; | |
3827 | /* Check the assumption that this removed the label. */ | |
3828 | assert(Perl_fetch_cop_label(aTHX_ PL_compiling.cop_hints_hash, NULL, | |
3829 | NULL) == NULL); | |
3830 | } | |
3831 | else | |
3832 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; | |
c28fe1ec | 3833 | if (PL_compiling.cop_hints_hash) { |
cbb1fbea | 3834 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3835 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3836 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3837 | } |
d819b83a DM |
3838 | /* special case: an eval '' executed within the DB package gets lexically |
3839 | * placed in the first non-DB CV rather than the current CV - this | |
3840 | * allows the debugger to execute code, find lexicals etc, in the | |
3841 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3842 | * to do the dirty work for us */ | |
3843 | runcv = find_runcv(&seq); | |
a0d0e21e | 3844 | |
6b35e009 | 3845 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 3846 | PUSHEVAL(cx, 0); |
f39bc417 | 3847 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3848 | |
3849 | /* prepare to compile string */ | |
3850 | ||
a44e3ce2 | 3851 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 3852 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
a0d0e21e | 3853 | PUTBACK; |
f9bddea7 NC |
3854 | |
3855 | if (doeval(gimme, NULL, runcv, seq)) { | |
3856 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
3857 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3858 | : PERLDB_SAVESRC_NOSUBS) { | |
3859 | /* Retain the filegv we created. */ | |
3860 | } else { | |
3861 | char *const safestr = savepvn(tmpbuf, len); | |
3862 | SAVEDELETE(PL_defstash, safestr, len); | |
3863 | } | |
3864 | return DOCATCH(PL_eval_start); | |
3865 | } else { | |
3866 | /* We have already left the scope set up earler thanks to the LEAVE | |
3867 | in doeval(). */ | |
eb044b10 NC |
3868 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
3869 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3870 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 NC |
3871 | /* Retain the filegv we created. */ |
3872 | } else { | |
3873 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); | |
3874 | } | |
3875 | return PL_op->op_next; | |
3876 | } | |
a0d0e21e LW |
3877 | } |
3878 | ||
3879 | PP(pp_leaveeval) | |
3880 | { | |
27da23d5 | 3881 | dVAR; dSP; |
a0d0e21e LW |
3882 | register SV **mark; |
3883 | SV **newsp; | |
3884 | PMOP *newpm; | |
3885 | I32 gimme; | |
c09156bb | 3886 | register PERL_CONTEXT *cx; |
a0d0e21e | 3887 | OP *retop; |
06b5626a | 3888 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 3889 | I32 optype; |
b6494f15 | 3890 | SV *namesv; |
a0d0e21e LW |
3891 | |
3892 | POPBLOCK(cx,newpm); | |
3893 | POPEVAL(cx); | |
b6494f15 | 3894 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 3895 | retop = cx->blk_eval.retop; |
a0d0e21e | 3896 | |
a1f49e72 | 3897 | TAINT_NOT; |
54310121 | 3898 | if (gimme == G_VOID) |
3899 | MARK = newsp; | |
3900 | else if (gimme == G_SCALAR) { | |
3901 | MARK = newsp + 1; | |
3902 | if (MARK <= SP) { | |
3903 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3904 | *MARK = TOPs; | |
3905 | else | |
3906 | *MARK = sv_mortalcopy(TOPs); | |
3907 | } | |
a0d0e21e | 3908 | else { |
54310121 | 3909 | MEXTEND(mark,0); |
3280af22 | 3910 | *MARK = &PL_sv_undef; |
a0d0e21e | 3911 | } |
a7ec2b44 | 3912 | SP = MARK; |
a0d0e21e LW |
3913 | } |
3914 | else { | |
a1f49e72 CS |
3915 | /* in case LEAVE wipes old return values */ |
3916 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3917 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3918 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3919 | TAINT_NOT; /* Each item is independent */ |
3920 | } | |
3921 | } | |
a0d0e21e | 3922 | } |
3280af22 | 3923 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3924 | |
4fdae800 | 3925 | #ifdef DEBUGGING |
3280af22 | 3926 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3927 | #endif |
3280af22 | 3928 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3929 | lex_end(); |
4fdae800 | 3930 | |
1ce6579f | 3931 | if (optype == OP_REQUIRE && |
924508f0 | 3932 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3933 | { |
1ce6579f | 3934 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
3935 | (void)hv_delete(GvHVn(PL_incgv), |
3936 | SvPVX_const(namesv), SvCUR(namesv), | |
3937 | G_DISCARD); | |
3938 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", | |
3939 | SVfARG(namesv)); | |
c5df3096 | 3940 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
3941 | } |
3942 | else { | |
d343c3ef | 3943 | LEAVE_with_name("eval"); |
8433848b | 3944 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 3945 | CLEAR_ERRSV(); |
8433848b | 3946 | } |
a0d0e21e | 3947 | } |
a0d0e21e LW |
3948 | |
3949 | RETURNOP(retop); | |
3950 | } | |
3951 | ||
edb2152a NC |
3952 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3953 | close to the related Perl_create_eval_scope. */ | |
3954 | void | |
3955 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3956 | { |
edb2152a NC |
3957 | SV **newsp; |
3958 | PMOP *newpm; | |
3959 | I32 gimme; | |
c09156bb | 3960 | register PERL_CONTEXT *cx; |
edb2152a NC |
3961 | I32 optype; |
3962 | ||
3963 | POPBLOCK(cx,newpm); | |
3964 | POPEVAL(cx); | |
3965 | PL_curpm = newpm; | |
d343c3ef | 3966 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
3967 | PERL_UNUSED_VAR(newsp); |
3968 | PERL_UNUSED_VAR(gimme); | |
3969 | PERL_UNUSED_VAR(optype); | |
3970 | } | |
a0d0e21e | 3971 | |
edb2152a NC |
3972 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3973 | also needed by Perl_fold_constants. */ | |
3974 | PERL_CONTEXT * | |
3975 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3976 | { | |
3977 | PERL_CONTEXT *cx; | |
3978 | const I32 gimme = GIMME_V; | |
3979 | ||
d343c3ef | 3980 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
3981 | SAVETMPS; |
3982 | ||
edb2152a | 3983 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 3984 | PUSHEVAL(cx, 0); |
a0d0e21e | 3985 | |
faef0170 | 3986 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3987 | if (flags & G_KEEPERR) |
3988 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
3989 | else |
3990 | CLEAR_ERRSV(); | |
edb2152a NC |
3991 | if (flags & G_FAKINGEVAL) { |
3992 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3993 | } | |
3994 | return cx; | |
3995 | } | |
3996 | ||
3997 | PP(pp_entertry) | |
3998 | { | |
3999 | dVAR; | |
df528165 | 4000 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4001 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4002 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4003 | } |
4004 | ||
4005 | PP(pp_leavetry) | |
4006 | { | |
27da23d5 | 4007 | dVAR; dSP; |
a0d0e21e LW |
4008 | SV **newsp; |
4009 | PMOP *newpm; | |
4010 | I32 gimme; | |
c09156bb | 4011 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
4012 | I32 optype; |
4013 | ||
4014 | POPBLOCK(cx,newpm); | |
4015 | POPEVAL(cx); | |
9d4ba2ae | 4016 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4017 | |
a1f49e72 | 4018 | TAINT_NOT; |
54310121 | 4019 | if (gimme == G_VOID) |
4020 | SP = newsp; | |
4021 | else if (gimme == G_SCALAR) { | |
c445ea15 | 4022 | register SV **mark; |
54310121 | 4023 | MARK = newsp + 1; |
4024 | if (MARK <= SP) { | |
4025 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4026 | *MARK = TOPs; | |
4027 | else | |
4028 | *MARK = sv_mortalcopy(TOPs); | |
4029 | } | |
a0d0e21e | 4030 | else { |
54310121 | 4031 | MEXTEND(mark,0); |
3280af22 | 4032 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
4033 | } |
4034 | SP = MARK; | |
4035 | } | |
4036 | else { | |
a1f49e72 | 4037 | /* in case LEAVE wipes old return values */ |
c445ea15 | 4038 | register SV **mark; |
a1f49e72 CS |
4039 | for (mark = newsp + 1; mark <= SP; mark++) { |
4040 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 4041 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
4042 | TAINT_NOT; /* Each item is independent */ |
4043 | } | |
4044 | } | |
a0d0e21e | 4045 | } |
3280af22 | 4046 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4047 | |
d343c3ef | 4048 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4049 | CLEAR_ERRSV(); |
745cf2ff | 4050 | RETURN; |
a0d0e21e LW |
4051 | } |
4052 | ||
0d863452 RH |
4053 | PP(pp_entergiven) |
4054 | { | |
4055 | dVAR; dSP; | |
4056 | register PERL_CONTEXT *cx; | |
4057 | const I32 gimme = GIMME_V; | |
4058 | ||
d343c3ef | 4059 | ENTER_with_name("given"); |
0d863452 RH |
4060 | SAVETMPS; |
4061 | ||
bb74b0ee | 4062 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); |
0d863452 RH |
4063 | |
4064 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4065 | PUSHGIVEN(cx); | |
4066 | ||
4067 | RETURN; | |
4068 | } | |
4069 | ||
4070 | PP(pp_leavegiven) | |
4071 | { | |
4072 | dVAR; dSP; | |
4073 | register PERL_CONTEXT *cx; | |
4074 | I32 gimme; | |
4075 | SV **newsp; | |
4076 | PMOP *newpm; | |
96a5add6 | 4077 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4078 | |
4079 | POPBLOCK(cx,newpm); | |
4080 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4081 | |
25b991bf VP |
4082 | TAINT_NOT; |
4083 | if (gimme == G_VOID) | |
4084 | SP = newsp; | |
4085 | else if (gimme == G_SCALAR) { | |
4086 | register SV **mark; | |
4087 | MARK = newsp + 1; | |
4088 | if (MARK <= SP) { | |
4089 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4090 | *MARK = TOPs; | |
4091 | else | |
4092 | *MARK = sv_mortalcopy(TOPs); | |
4093 | } | |
4094 | else { | |
4095 | MEXTEND(mark,0); | |
4096 | *MARK = &PL_sv_undef; | |
4097 | } | |
4098 | SP = MARK; | |
4099 | } | |
4100 | else { | |
4101 | /* in case LEAVE wipes old return values */ | |
4102 | register SV **mark; | |
4103 | for (mark = newsp + 1; mark <= SP; mark++) { | |
4104 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
4105 | *mark = sv_mortalcopy(*mark); | |
4106 | TAINT_NOT; /* Each item is independent */ | |
4107 | } | |
4108 | } | |
4109 | } | |
4110 | PL_curpm = newpm; /* Don't pop $1 et al till now */ | |
0d863452 | 4111 | |
d343c3ef | 4112 | LEAVE_with_name("given"); |
25b991bf | 4113 | RETURN; |
0d863452 RH |
4114 | } |
4115 | ||
4116 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4117 | STATIC PMOP * |
84679df5 | 4118 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 4119 | { |
97aff369 | 4120 | dVAR; |
0d863452 | 4121 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4122 | |
4123 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4124 | ||
d6106309 | 4125 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4126 | |
0d863452 | 4127 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4128 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4129 | SAVEOP(); |
4130 | return matcher; | |
4131 | } | |
4132 | ||
4136a0f7 | 4133 | STATIC bool |
0d863452 RH |
4134 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4135 | { | |
97aff369 | 4136 | dVAR; |
0d863452 | 4137 | dSP; |
7918f24d NC |
4138 | |
4139 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4140 | |
4141 | PL_op = (OP *) matcher; | |
4142 | XPUSHs(sv); | |
4143 | PUTBACK; | |
4144 | (void) pp_match(); | |
4145 | SPAGAIN; | |
4146 | return (SvTRUEx(POPs)); | |
4147 | } | |
4148 | ||
4136a0f7 | 4149 | STATIC void |
0d863452 RH |
4150 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4151 | { | |
97aff369 | 4152 | dVAR; |
7918f24d NC |
4153 | |
4154 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4155 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4156 | |
0d863452 | 4157 | FREETMPS; |
d343c3ef | 4158 | LEAVE_with_name("matcher"); |
0d863452 RH |
4159 | } |
4160 | ||
4161 | /* Do a smart match */ | |
4162 | PP(pp_smartmatch) | |
4163 | { | |
d7c0d282 | 4164 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
a0714e2c | 4165 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4166 | } |
4167 | ||
4b021f5f RGS |
4168 | /* This version of do_smartmatch() implements the |
4169 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4170 | */ |
4136a0f7 | 4171 | STATIC OP * |
0d863452 RH |
4172 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4173 | { | |
97aff369 | 4174 | dVAR; |
0d863452 RH |
4175 | dSP; |
4176 | ||
41e726ac | 4177 | bool object_on_left = FALSE; |
0d863452 RH |
4178 | SV *e = TOPs; /* e is for 'expression' */ |
4179 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4180 | |
6f1401dc DM |
4181 | /* Take care only to invoke mg_get() once for each argument. |
4182 | * Currently we do this by copying the SV if it's magical. */ | |
4183 | if (d) { | |
4184 | if (SvGMAGICAL(d)) | |
4185 | d = sv_mortalcopy(d); | |
4186 | } | |
4187 | else | |
4188 | d = &PL_sv_undef; | |
4189 | ||
4190 | assert(e); | |
4191 | if (SvGMAGICAL(e)) | |
4192 | e = sv_mortalcopy(e); | |
4193 | ||
2c9d2554 | 4194 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4195 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4196 | SV * tmpsv; |
4197 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4198 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4199 | ||
4200 | tmpsv = amagic_call(d, e, smart_amg, 0); | |
7c41e62e RGS |
4201 | if (tmpsv) { |
4202 | SPAGAIN; | |
4203 | (void)POPs; | |
4204 | SETs(tmpsv); | |
4205 | RETURN; | |
4206 | } | |
d7c0d282 | 4207 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4208 | } |
62ec5f58 | 4209 | |
0d863452 RH |
4210 | SP -= 2; /* Pop the values */ |
4211 | ||
0d863452 | 4212 | |
b0138e99 | 4213 | /* ~~ undef */ |
62ec5f58 | 4214 | if (!SvOK(e)) { |
d7c0d282 | 4215 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4216 | if (SvOK(d)) |
33570f8b RGS |
4217 | RETPUSHNO; |
4218 | else | |
62ec5f58 | 4219 | RETPUSHYES; |
33570f8b | 4220 | } |
e67b97bd | 4221 | |
d7c0d282 DM |
4222 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4223 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4224 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4225 | } |
41e726ac RGS |
4226 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4227 | object_on_left = TRUE; | |
62ec5f58 | 4228 | |
b0138e99 | 4229 | /* ~~ sub */ |
a4a197da | 4230 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4231 | I32 c; |
41e726ac RGS |
4232 | if (object_on_left) { |
4233 | goto sm_any_sub; /* Treat objects like scalars */ | |
4234 | } | |
4235 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4236 | /* Test sub truth for each key */ |
4237 | HE *he; | |
4238 | bool andedresults = TRUE; | |
4239 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4240 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4241 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4242 | if (numkeys == 0) |
07edf497 | 4243 | RETPUSHYES; |
a4a197da | 4244 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4245 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4246 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4247 | SAVETMPS; |
4248 | PUSHMARK(SP); | |
4249 | PUSHs(hv_iterkeysv(he)); | |
4250 | PUTBACK; | |
4251 | c = call_sv(e, G_SCALAR); | |
4252 | SPAGAIN; | |
4253 | if (c == 0) | |
4254 | andedresults = FALSE; | |
4255 | else | |
4256 | andedresults = SvTRUEx(POPs) && andedresults; | |
4257 | FREETMPS; | |
d343c3ef | 4258 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4259 | } |
4260 | if (andedresults) | |
4261 | RETPUSHYES; | |
4262 | else | |
4263 | RETPUSHNO; | |
4264 | } | |
4265 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4266 | /* Test sub truth for each element */ | |
4267 | I32 i; | |
4268 | bool andedresults = TRUE; | |
4269 | AV *av = (AV*) SvRV(d); | |
4270 | const I32 len = av_len(av); | |
d7c0d282 | 4271 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4272 | if (len == -1) |
07edf497 | 4273 | RETPUSHYES; |
a4a197da RGS |
4274 | for (i = 0; i <= len; ++i) { |
4275 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4276 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4277 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4278 | SAVETMPS; |
4279 | PUSHMARK(SP); | |
4280 | if (svp) | |
4281 | PUSHs(*svp); | |
4282 | PUTBACK; | |
4283 | c = call_sv(e, G_SCALAR); | |
4284 | SPAGAIN; | |
4285 | if (c == 0) | |
4286 | andedresults = FALSE; | |
4287 | else | |
4288 | andedresults = SvTRUEx(POPs) && andedresults; | |
4289 | FREETMPS; | |
d343c3ef | 4290 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4291 | } |
4292 | if (andedresults) | |
4293 | RETPUSHYES; | |
4294 | else | |
4295 | RETPUSHNO; | |
4296 | } | |
4297 | else { | |
41e726ac | 4298 | sm_any_sub: |
d7c0d282 | 4299 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4300 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4301 | SAVETMPS; |
4302 | PUSHMARK(SP); | |
4303 | PUSHs(d); | |
4304 | PUTBACK; | |
4305 | c = call_sv(e, G_SCALAR); | |
4306 | SPAGAIN; | |
4307 | if (c == 0) | |
4308 | PUSHs(&PL_sv_no); | |
4309 | else if (SvTEMP(TOPs)) | |
4310 | SvREFCNT_inc_void(TOPs); | |
4311 | FREETMPS; | |
d343c3ef | 4312 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4313 | RETURN; |
4314 | } | |
0d863452 | 4315 | } |
b0138e99 | 4316 | /* ~~ %hash */ |
61a621c6 | 4317 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4318 | if (object_on_left) { |
4319 | goto sm_any_hash; /* Treat objects like scalars */ | |
4320 | } | |
4321 | else if (!SvOK(d)) { | |
d7c0d282 | 4322 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4323 | RETPUSHNO; |
4324 | } | |
4325 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4326 | /* Check that the key-sets are identical */ |
4327 | HE *he; | |
61a621c6 | 4328 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4329 | bool tied = FALSE; |
4330 | bool other_tied = FALSE; | |
4331 | U32 this_key_count = 0, | |
4332 | other_key_count = 0; | |
33ed63a2 | 4333 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4334 | |
4335 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4336 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4337 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4338 | tied = TRUE; |
4339 | } | |
ad64d0ec | 4340 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4341 | HV * const temp = other_hv; |
33ed63a2 RGS |
4342 | other_hv = hv; |
4343 | hv = temp; | |
0d863452 RH |
4344 | tied = TRUE; |
4345 | } | |
ad64d0ec | 4346 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4347 | other_tied = TRUE; |
4348 | ||
33ed63a2 | 4349 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4350 | RETPUSHNO; |
4351 | ||
4352 | /* The hashes have the same number of keys, so it suffices | |
4353 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4354 | (void) hv_iterinit(hv); |
4355 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4356 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4357 | |
4358 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4359 | ++ this_key_count; |
4360 | ||
b15feb55 | 4361 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4362 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4363 | RETPUSHNO; |
4364 | } | |
4365 | } | |
4366 | ||
4367 | if (other_tied) { | |
4368 | (void) hv_iterinit(other_hv); | |
4369 | while ( hv_iternext(other_hv) ) | |
4370 | ++other_key_count; | |
4371 | } | |
4372 | else | |
4373 | other_key_count = HvUSEDKEYS(other_hv); | |
4374 | ||
4375 | if (this_key_count != other_key_count) | |
4376 | RETPUSHNO; | |
4377 | else | |
4378 | RETPUSHYES; | |
4379 | } | |
61a621c6 RGS |
4380 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4381 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4382 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4383 | I32 i; |
33ed63a2 | 4384 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4385 | |
d7c0d282 | 4386 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4387 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4388 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4389 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4390 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4391 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4392 | RETPUSHYES; |
4393 | } | |
0d863452 | 4394 | } |
71b0fb34 | 4395 | RETPUSHNO; |
0d863452 | 4396 | } |
a566f585 | 4397 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4398 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4399 | sm_regex_hash: |
4400 | { | |
4401 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4402 | HE *he; | |
4403 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4404 | ||
4405 | (void) hv_iterinit(hv); | |
4406 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4407 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4408 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4409 | (void) hv_iterinit(hv); | |
4410 | destroy_matcher(matcher); | |
4411 | RETPUSHYES; | |
4412 | } | |
0d863452 | 4413 | } |
ea0c2dbd RGS |
4414 | destroy_matcher(matcher); |
4415 | RETPUSHNO; | |
0d863452 | 4416 | } |
0d863452 RH |
4417 | } |
4418 | else { | |
41e726ac | 4419 | sm_any_hash: |
d7c0d282 | 4420 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4421 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4422 | RETPUSHYES; |
4423 | else | |
4424 | RETPUSHNO; | |
4425 | } | |
4426 | } | |
b0138e99 RGS |
4427 | /* ~~ @array */ |
4428 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4429 | if (object_on_left) { |
4430 | goto sm_any_array; /* Treat objects like scalars */ | |
4431 | } | |
4432 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4433 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4434 | const I32 other_len = av_len(other_av) + 1; | |
4435 | I32 i; | |
4436 | ||
d7c0d282 | 4437 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4438 | for (i = 0; i < other_len; ++i) { |
4439 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4440 | |
4441 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4442 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4443 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4444 | RETPUSHYES; |
4445 | } | |
4446 | } | |
4447 | RETPUSHNO; | |
4448 | } | |
4449 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4450 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4451 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4452 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4453 | RETPUSHNO; |
4454 | else { | |
4455 | I32 i; | |
c445ea15 | 4456 | const I32 other_len = av_len(other_av); |
0d863452 | 4457 | |
a0714e2c | 4458 | if (NULL == seen_this) { |
0d863452 | 4459 | seen_this = newHV(); |
ad64d0ec | 4460 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4461 | } |
a0714e2c | 4462 | if (NULL == seen_other) { |
6bc991bf | 4463 | seen_other = newHV(); |
ad64d0ec | 4464 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4465 | } |
4466 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4467 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4468 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4469 | ||
0d863452 | 4470 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4471 | if ((this_elem && SvOK(*this_elem)) |
4472 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4473 | RETPUSHNO; |
4474 | } | |
365c4e3d RGS |
4475 | else if (hv_exists_ent(seen_this, |
4476 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4477 | hv_exists_ent(seen_other, | |
4478 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4479 | { |
4480 | if (*this_elem != *other_elem) | |
4481 | RETPUSHNO; | |
4482 | } | |
4483 | else { | |
04fe65b0 RGS |
4484 | (void)hv_store_ent(seen_this, |
4485 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4486 | &PL_sv_undef, 0); | |
4487 | (void)hv_store_ent(seen_other, | |
4488 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4489 | &PL_sv_undef, 0); | |
0d863452 | 4490 | PUSHs(*other_elem); |
a566f585 | 4491 | PUSHs(*this_elem); |
0d863452 RH |
4492 | |
4493 | PUTBACK; | |
d7c0d282 | 4494 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
0d863452 RH |
4495 | (void) do_smartmatch(seen_this, seen_other); |
4496 | SPAGAIN; | |
d7c0d282 | 4497 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4498 | |
4499 | if (!SvTRUEx(POPs)) | |
4500 | RETPUSHNO; | |
4501 | } | |
4502 | } | |
4503 | RETPUSHYES; | |
4504 | } | |
4505 | } | |
a566f585 | 4506 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4507 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4508 | sm_regex_array: |
4509 | { | |
4510 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4511 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4512 | I32 i; | |
0d863452 | 4513 | |
ea0c2dbd RGS |
4514 | for(i = 0; i <= this_len; ++i) { |
4515 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4516 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4517 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4518 | destroy_matcher(matcher); | |
4519 | RETPUSHYES; | |
4520 | } | |
0d863452 | 4521 | } |
ea0c2dbd RGS |
4522 | destroy_matcher(matcher); |
4523 | RETPUSHNO; | |
0d863452 | 4524 | } |
0d863452 | 4525 | } |
015eb7b9 RGS |
4526 | else if (!SvOK(d)) { |
4527 | /* undef ~~ array */ | |
4528 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4529 | I32 i; |
4530 | ||
d7c0d282 | 4531 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4532 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4533 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4534 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4535 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4536 | RETPUSHYES; |
4537 | } | |
4538 | RETPUSHNO; | |
4539 | } | |
015eb7b9 | 4540 | else { |
41e726ac RGS |
4541 | sm_any_array: |
4542 | { | |
4543 | I32 i; | |
4544 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4545 | |
d7c0d282 | 4546 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4547 | for (i = 0; i <= this_len; ++i) { |
4548 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4549 | if (!svp) | |
4550 | continue; | |
015eb7b9 | 4551 | |
41e726ac RGS |
4552 | PUSHs(d); |
4553 | PUSHs(*svp); | |
4554 | PUTBACK; | |
4555 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4556 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
41e726ac RGS |
4557 | (void) do_smartmatch(NULL, NULL); |
4558 | SPAGAIN; | |
d7c0d282 | 4559 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4560 | if (SvTRUEx(POPs)) |
4561 | RETPUSHYES; | |
4562 | } | |
4563 | RETPUSHNO; | |
0d863452 | 4564 | } |
0d863452 RH |
4565 | } |
4566 | } | |
b0138e99 | 4567 | /* ~~ qr// */ |
a566f585 | 4568 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4569 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4570 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4571 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4572 | goto sm_regex_hash; |
4573 | } | |
4574 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4575 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4576 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4577 | goto sm_regex_array; |
4578 | } | |
4579 | else { | |
4580 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4581 | |
d7c0d282 | 4582 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4583 | PUTBACK; |
4584 | PUSHs(matcher_matches_sv(matcher, d) | |
4585 | ? &PL_sv_yes | |
4586 | : &PL_sv_no); | |
4587 | destroy_matcher(matcher); | |
4588 | RETURN; | |
4589 | } | |
0d863452 | 4590 | } |
b0138e99 | 4591 | /* ~~ scalar */ |
2c9d2554 RGS |
4592 | /* See if there is overload magic on left */ |
4593 | else if (object_on_left && SvAMAGIC(d)) { | |
4594 | SV *tmpsv; | |
d7c0d282 DM |
4595 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4596 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4597 | PUSHs(d); PUSHs(e); |
4598 | PUTBACK; | |
4599 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4600 | if (tmpsv) { | |
4601 | SPAGAIN; | |
4602 | (void)POPs; | |
4603 | SETs(tmpsv); | |
4604 | RETURN; | |
4605 | } | |
4606 | SP -= 2; | |
d7c0d282 | 4607 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4608 | goto sm_any_scalar; |
4609 | } | |
fb51372e RGS |
4610 | else if (!SvOK(d)) { |
4611 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4612 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4613 | RETPUSHNO; |
4614 | } | |
2c9d2554 RGS |
4615 | else |
4616 | sm_any_scalar: | |
4617 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4618 | DEBUG_M(if (SvNIOK(e)) |
4619 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4620 | else | |
4621 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4622 | ); | |
33ed63a2 | 4623 | /* numeric comparison */ |
0d863452 RH |
4624 | PUSHs(d); PUSHs(e); |
4625 | PUTBACK; | |
a98fe34d | 4626 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4627 | (void) pp_i_eq(); |
4628 | else | |
4629 | (void) pp_eq(); | |
4630 | SPAGAIN; | |
4631 | if (SvTRUEx(POPs)) | |
4632 | RETPUSHYES; | |
4633 | else | |
4634 | RETPUSHNO; | |
4635 | } | |
4636 | ||
4637 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4638 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4639 | PUSHs(d); PUSHs(e); |
4640 | PUTBACK; | |
4641 | return pp_seq(); | |
4642 | } | |
4643 | ||
4644 | PP(pp_enterwhen) | |
4645 | { | |
4646 | dVAR; dSP; | |
4647 | register PERL_CONTEXT *cx; | |
4648 | const I32 gimme = GIMME_V; | |
4649 | ||
4650 | /* This is essentially an optimization: if the match | |
4651 | fails, we don't want to push a context and then | |
4652 | pop it again right away, so we skip straight | |
4653 | to the op that follows the leavewhen. | |
25b991bf | 4654 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4655 | */ |
4656 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4657 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4658 | |
d343c3ef | 4659 | ENTER_with_name("eval"); |
0d863452 RH |
4660 | SAVETMPS; |
4661 | ||
4662 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4663 | PUSHWHEN(cx); | |
4664 | ||
4665 | RETURN; | |
4666 | } | |
4667 | ||
4668 | PP(pp_leavewhen) | |
4669 | { | |
4670 | dVAR; dSP; | |
4671 | register PERL_CONTEXT *cx; | |
4672 | I32 gimme; | |
4673 | SV **newsp; | |
4674 | PMOP *newpm; | |
4675 | ||
4676 | POPBLOCK(cx,newpm); | |
4677 | assert(CxTYPE(cx) == CXt_WHEN); | |
4678 | ||
4679 | SP = newsp; | |
4680 | PUTBACK; | |
4681 | ||
4682 | PL_curpm = newpm; /* pop $1 et al */ | |
4683 | ||
d343c3ef | 4684 | LEAVE_with_name("eval"); |
0d863452 RH |
4685 | return NORMAL; |
4686 | } | |
4687 | ||
4688 | PP(pp_continue) | |
4689 | { | |
4690 | dVAR; | |
4691 | I32 cxix; | |
4692 | register PERL_CONTEXT *cx; | |
4693 | I32 inner; | |
4694 | ||
4695 | cxix = dopoptowhen(cxstack_ix); | |
4696 | if (cxix < 0) | |
4697 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4698 | if (cxix < cxstack_ix) | |
4699 | dounwind(cxix); | |
4700 | ||
4701 | /* clear off anything above the scope we're re-entering */ | |
4702 | inner = PL_scopestack_ix; | |
4703 | TOPBLOCK(cx); | |
4704 | if (PL_scopestack_ix < inner) | |
4705 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4706 | PL_curcop = cx->blk_oldcop; | |
4707 | return cx->blk_givwhen.leave_op; | |
4708 | } | |
4709 | ||
4710 | PP(pp_break) | |
4711 | { | |
4712 | dVAR; | |
4713 | I32 cxix; | |
4714 | register PERL_CONTEXT *cx; | |
4715 | I32 inner; | |
25b991bf VP |
4716 | dSP; |
4717 | ||
0d863452 RH |
4718 | cxix = dopoptogiven(cxstack_ix); |
4719 | if (cxix < 0) { | |
4720 | if (PL_op->op_flags & OPf_SPECIAL) | |
4721 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4722 | else | |
4723 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4724 | } | |
4725 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4726 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4727 | ||
4728 | if (cxix < cxstack_ix) | |
4729 | dounwind(cxix); | |
4730 | ||
4731 | /* clear off anything above the scope we're re-entering */ | |
4732 | inner = PL_scopestack_ix; | |
4733 | TOPBLOCK(cx); | |
4734 | if (PL_scopestack_ix < inner) | |
4735 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4736 | PL_curcop = cx->blk_oldcop; | |
4737 | ||
4738 | if (CxFOREACH(cx)) | |
022eaa24 | 4739 | return CX_LOOP_NEXTOP_GET(cx); |
0d863452 | 4740 | else |
25b991bf VP |
4741 | /* RETURNOP calls PUTBACK which restores the old old sp */ |
4742 | RETURNOP(cx->blk_givwhen.leave_op); | |
0d863452 RH |
4743 | } |
4744 | ||
a1b95068 | 4745 | STATIC OP * |
cea2e8a9 | 4746 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4747 | { |
4748 | STRLEN len; | |
4749 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4750 | register char * const send = s + len; |
4751 | register char *base = NULL; | |
a0d0e21e | 4752 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4753 | bool noblank = FALSE; |
4754 | bool repeat = FALSE; | |
a0d0e21e | 4755 | bool postspace = FALSE; |
dea28490 JJ |
4756 | U32 *fops; |
4757 | register U32 *fpc; | |
cbbf8932 | 4758 | U32 *linepc = NULL; |
a0d0e21e LW |
4759 | register I32 arg; |
4760 | bool ischop; | |
a1b95068 WL |
4761 | bool unchopnum = FALSE; |
4762 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4763 | |
7918f24d NC |
4764 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4765 | ||
55497cff | 4766 | if (len == 0) |
cea2e8a9 | 4767 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4768 | |
815f25c6 DM |
4769 | /* estimate the buffer size needed */ |
4770 | for (base = s; s <= send; s++) { | |
a1b95068 | 4771 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4772 | maxops += 10; |
4773 | } | |
4774 | s = base; | |
c445ea15 | 4775 | base = NULL; |
815f25c6 | 4776 | |
a02a5408 | 4777 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4778 | fpc = fops; |
4779 | ||
4780 | if (s < send) { | |
4781 | linepc = fpc; | |
4782 | *fpc++ = FF_LINEMARK; | |
4783 | noblank = repeat = FALSE; | |
4784 | base = s; | |
4785 | } | |
4786 | ||
4787 | while (s <= send) { | |
4788 | switch (*s++) { | |
4789 | default: | |
4790 | skipspaces = 0; | |
4791 | continue; | |
4792 | ||
4793 | case '~': | |
4794 | if (*s == '~') { | |
4795 | repeat = TRUE; | |
4796 | *s = ' '; | |
4797 | } | |
4798 | noblank = TRUE; | |
4799 | s[-1] = ' '; | |
4800 | /* FALL THROUGH */ | |
4801 | case ' ': case '\t': | |
4802 | skipspaces++; | |
4803 | continue; | |
a1b95068 WL |
4804 | case 0: |
4805 | if (s < send) { | |
4806 | skipspaces = 0; | |
4807 | continue; | |
4808 | } /* else FALL THROUGH */ | |
4809 | case '\n': | |
a0d0e21e LW |
4810 | arg = s - base; |
4811 | skipspaces++; | |
4812 | arg -= skipspaces; | |
4813 | if (arg) { | |
5f05dabc | 4814 | if (postspace) |
a0d0e21e | 4815 | *fpc++ = FF_SPACE; |
a0d0e21e | 4816 | *fpc++ = FF_LITERAL; |
eb160463 | 4817 | *fpc++ = (U16)arg; |
a0d0e21e | 4818 | } |
5f05dabc | 4819 | postspace = FALSE; |
a0d0e21e LW |
4820 | if (s <= send) |
4821 | skipspaces--; | |
4822 | if (skipspaces) { | |
4823 | *fpc++ = FF_SKIP; | |
eb160463 | 4824 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4825 | } |
4826 | skipspaces = 0; | |
4827 | if (s <= send) | |
4828 | *fpc++ = FF_NEWLINE; | |
4829 | if (noblank) { | |
4830 | *fpc++ = FF_BLANK; | |
4831 | if (repeat) | |
4832 | arg = fpc - linepc + 1; | |
4833 | else | |
4834 | arg = 0; | |
eb160463 | 4835 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4836 | } |
4837 | if (s < send) { | |
4838 | linepc = fpc; | |
4839 | *fpc++ = FF_LINEMARK; | |
4840 | noblank = repeat = FALSE; | |
4841 | base = s; | |
4842 | } | |
4843 | else | |
4844 | s++; | |
4845 | continue; | |
4846 | ||
4847 | case '@': | |
4848 | case '^': | |
4849 | ischop = s[-1] == '^'; | |
4850 | ||
4851 | if (postspace) { | |
4852 | *fpc++ = FF_SPACE; | |
4853 | postspace = FALSE; | |
4854 | } | |
4855 | arg = (s - base) - 1; | |
4856 | if (arg) { | |
4857 | *fpc++ = FF_LITERAL; | |
eb160463 | 4858 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4859 | } |
4860 | ||
4861 | base = s - 1; | |
4862 | *fpc++ = FF_FETCH; | |
4863 | if (*s == '*') { | |
4864 | s++; | |
a1b95068 WL |
4865 | *fpc++ = 2; /* skip the @* or ^* */ |
4866 | if (ischop) { | |
4867 | *fpc++ = FF_LINESNGL; | |
4868 | *fpc++ = FF_CHOP; | |
4869 | } else | |
4870 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4871 | } |
4872 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4873 | arg = ischop ? 512 : 0; | |
4874 | base = s - 1; | |
4875 | while (*s == '#') | |
4876 | s++; | |
4877 | if (*s == '.') { | |
06b5626a | 4878 | const char * const f = ++s; |
a0d0e21e LW |
4879 | while (*s == '#') |
4880 | s++; | |
4881 | arg |= 256 + (s - f); | |
4882 | } | |
4883 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4884 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4885 | *fpc++ = (U16)arg; |
a1b95068 | 4886 | unchopnum |= ! ischop; |
784707d5 JP |
4887 | } |
4888 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4889 | arg = ischop ? 512 : 0; | |
4890 | base = s - 1; | |
4891 | s++; /* skip the '0' first */ | |
4892 | while (*s == '#') | |
4893 | s++; | |
4894 | if (*s == '.') { | |
06b5626a | 4895 | const char * const f = ++s; |
784707d5 JP |
4896 | while (*s == '#') |
4897 | s++; | |
4898 | arg |= 256 + (s - f); | |
4899 | } | |
4900 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4901 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4902 | *fpc++ = (U16)arg; |
a1b95068 | 4903 | unchopnum |= ! ischop; |
a0d0e21e LW |
4904 | } |
4905 | else { | |
4906 | I32 prespace = 0; | |
4907 | bool ismore = FALSE; | |
4908 | ||
4909 | if (*s == '>') { | |
4910 | while (*++s == '>') ; | |
4911 | prespace = FF_SPACE; | |
4912 | } | |
4913 | else if (*s == '|') { | |
4914 | while (*++s == '|') ; | |
4915 | prespace = FF_HALFSPACE; | |
4916 | postspace = TRUE; | |
4917 | } | |
4918 | else { | |
4919 | if (*s == '<') | |
4920 | while (*++s == '<') ; | |
4921 | postspace = TRUE; | |
4922 | } | |
4923 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4924 | s += 3; | |
4925 | ismore = TRUE; | |
4926 | } | |
4927 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4928 | ||
4929 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4930 | ||
4931 | if (prespace) | |
eb160463 | 4932 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4933 | *fpc++ = FF_ITEM; |
4934 | if (ismore) | |
4935 | *fpc++ = FF_MORE; | |
4936 | if (ischop) | |
4937 | *fpc++ = FF_CHOP; | |
4938 | } | |
4939 | base = s; | |
4940 | skipspaces = 0; | |
4941 | continue; | |
4942 | } | |
4943 | } | |
4944 | *fpc++ = FF_END; | |
4945 | ||
815f25c6 | 4946 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4947 | arg = fpc - fops; |
4948 | { /* need to jump to the next word */ | |
4949 | int z; | |
4950 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4951 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4952 | s = SvPVX(sv) + SvCUR(sv) + z; |
4953 | } | |
dea28490 | 4954 | Copy(fops, s, arg, U32); |
a0d0e21e | 4955 | Safefree(fops); |
c445ea15 | 4956 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4957 | SvCOMPILED_on(sv); |
a1b95068 | 4958 | |
bfed75c6 | 4959 | if (unchopnum && repeat) |
a1b95068 WL |
4960 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4961 | return 0; | |
4962 | } | |
4963 | ||
4964 | ||
4965 | STATIC bool | |
4966 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4967 | { | |
4968 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4969 | NV pwr = 1; | |
4970 | NV eps = 0.5; | |
4971 | bool res = FALSE; | |
4972 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4973 | ||
4974 | if (frcsize & 256) | |
4975 | intsize--; | |
4976 | frcsize &= 255; | |
4977 | intsize -= frcsize; | |
4978 | ||
4979 | while (intsize--) pwr *= 10.0; | |
4980 | while (frcsize--) eps /= 10.0; | |
4981 | ||
4982 | if( value >= 0 ){ | |
4983 | if (value + eps >= pwr) | |
4984 | res = TRUE; | |
4985 | } else { | |
4986 | if (value - eps <= -pwr) | |
4987 | res = TRUE; | |
4988 | } | |
4989 | return res; | |
a0d0e21e | 4990 | } |
4e35701f | 4991 | |
bbed91b5 | 4992 | static I32 |
0bd48802 | 4993 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4994 | { |
27da23d5 | 4995 | dVAR; |
0bd48802 | 4996 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4997 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
4998 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
4999 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5000 | int status = 0; |
ec0b63d7 | 5001 | SV *upstream; |
941a98a0 | 5002 | STRLEN got_len; |
162177c1 Z |
5003 | char *got_p = NULL; |
5004 | char *prune_from = NULL; | |
34113e50 | 5005 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
5006 | STRLEN umaxlen; |
5007 | ||
7918f24d NC |
5008 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5009 | ||
bb7a0f54 MHM |
5010 | assert(maxlen >= 0); |
5011 | umaxlen = maxlen; | |
5675696b | 5012 | |
bbed91b5 KF |
5013 | /* I was having segfault trouble under Linux 2.2.5 after a |
5014 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5015 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5016 | not sure where the trouble is yet. XXX */ |
5017 | ||
4464f08e NC |
5018 | { |
5019 | SV *const cache = datasv; | |
937b367d NC |
5020 | if (SvOK(cache)) { |
5021 | STRLEN cache_len; | |
5022 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5023 | STRLEN take = 0; |
5024 | ||
bb7a0f54 | 5025 | if (umaxlen) { |
941a98a0 NC |
5026 | /* Running in block mode and we have some cached data already. |
5027 | */ | |
bb7a0f54 | 5028 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5029 | /* In fact, so much data we don't even need to call |
5030 | filter_read. */ | |
bb7a0f54 | 5031 | take = umaxlen; |
941a98a0 NC |
5032 | } |
5033 | } else { | |
10edeb5d JH |
5034 | const char *const first_nl = |
5035 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5036 | if (first_nl) { |
5037 | take = first_nl + 1 - cache_p; | |
5038 | } | |
5039 | } | |
5040 | if (take) { | |
5041 | sv_catpvn(buf_sv, cache_p, take); | |
5042 | sv_chop(cache, cache_p + take); | |
937b367d NC |
5043 | /* Definately not EOF */ |
5044 | return 1; | |
5045 | } | |
941a98a0 | 5046 | |
937b367d | 5047 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5048 | if (umaxlen) { |
5049 | umaxlen -= cache_len; | |
941a98a0 | 5050 | } |
937b367d | 5051 | SvOK_off(cache); |
34113e50 | 5052 | read_from_cache = TRUE; |
937b367d NC |
5053 | } |
5054 | } | |
ec0b63d7 | 5055 | |
34113e50 NC |
5056 | /* Filter API says that the filter appends to the contents of the buffer. |
5057 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5058 | then clearly what it contains is already filtered by this filter, so we | |
5059 | don't want to pass it in a second time. | |
5060 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5061 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5062 | ? sv_newmortal() : buf_sv; | |
5063 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5064 | |
bbed91b5 | 5065 | if (filter_has_file) { |
67e70b33 | 5066 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5067 | } |
5068 | ||
34113e50 | 5069 | if (filter_sub && status >= 0) { |
39644a26 | 5070 | dSP; |
bbed91b5 KF |
5071 | int count; |
5072 | ||
d343c3ef | 5073 | ENTER_with_name("call_filter_sub"); |
bbed91b5 KF |
5074 | SAVE_DEFSV; |
5075 | SAVETMPS; | |
5076 | EXTEND(SP, 2); | |
5077 | ||
414bf5ae | 5078 | DEFSV_set(upstream); |
bbed91b5 | 5079 | PUSHMARK(SP); |
6e449a3a | 5080 | mPUSHi(0); |
bbed91b5 KF |
5081 | if (filter_state) { |
5082 | PUSHs(filter_state); | |
5083 | } | |
5084 | PUTBACK; | |
5085 | count = call_sv(filter_sub, G_SCALAR); | |
5086 | SPAGAIN; | |
5087 | ||
5088 | if (count > 0) { | |
5089 | SV *out = POPs; | |
5090 | if (SvOK(out)) { | |
941a98a0 | 5091 | status = SvIV(out); |
bbed91b5 KF |
5092 | } |
5093 | } | |
5094 | ||
5095 | PUTBACK; | |
5096 | FREETMPS; | |
d343c3ef | 5097 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5098 | } |
5099 | ||
941a98a0 NC |
5100 | if(SvOK(upstream)) { |
5101 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
5102 | if (umaxlen) { |
5103 | if (got_len > umaxlen) { | |
5104 | prune_from = got_p + umaxlen; | |
937b367d | 5105 | } |
941a98a0 | 5106 | } else { |
162177c1 | 5107 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5108 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5109 | /* There's a second line here... */ | |
5110 | prune_from = first_nl + 1; | |
937b367d | 5111 | } |
937b367d NC |
5112 | } |
5113 | } | |
941a98a0 NC |
5114 | if (prune_from) { |
5115 | /* Oh. Too long. Stuff some in our cache. */ | |
5116 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5117 | SV *const cache = datasv; |
941a98a0 | 5118 | |
4464f08e | 5119 | if (SvOK(cache)) { |
941a98a0 NC |
5120 | /* Cache should be empty. */ |
5121 | assert(!SvCUR(cache)); | |
5122 | } | |
5123 | ||
5124 | sv_setpvn(cache, prune_from, cached_len); | |
5125 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5126 | "If it breaks, you get to keep both parts" | |
5127 | (Your code is broken if you don't put them back together again | |
5128 | before something notices.) */ | |
5129 | if (SvUTF8(upstream)) { | |
5130 | SvUTF8_on(cache); | |
5131 | } | |
5132 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5133 | *prune_from = 0; |
941a98a0 NC |
5134 | /* Can't yet be EOF */ |
5135 | if (status == 0) | |
5136 | status = 1; | |
5137 | } | |
937b367d | 5138 | |
34113e50 NC |
5139 | /* If they are at EOF but buf_sv has something in it, then they may never |
5140 | have touched the SV upstream, so it may be undefined. If we naively | |
5141 | concatenate it then we get a warning about use of uninitialised value. | |
5142 | */ | |
5143 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5144 | sv_catsv(buf_sv, upstream); |
5145 | } | |
5146 | ||
941a98a0 | 5147 | if (status <= 0) { |
bbed91b5 | 5148 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5149 | if (filter_state) { |
5150 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5151 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5152 | } |
5153 | if (filter_sub) { | |
5154 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5155 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5156 | } |
0bd48802 | 5157 | filter_del(S_run_user_filter); |
bbed91b5 | 5158 | } |
34113e50 NC |
5159 | if (status == 0 && read_from_cache) { |
5160 | /* If we read some data from the cache (and by getting here it implies | |
5161 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5162 | report that to our caller. */ | |
5163 | return 1; | |
5164 | } | |
941a98a0 | 5165 | return status; |
bbed91b5 | 5166 | } |
84d4ea48 | 5167 | |
be4b629d CN |
5168 | /* perhaps someone can come up with a better name for |
5169 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5170 | static bool |
5f66b61c | 5171 | S_path_is_absolute(const char *name) |
be4b629d | 5172 | { |
7918f24d NC |
5173 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5174 | ||
be4b629d | 5175 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5176 | #ifdef WIN32 |
36f064bc CL |
5177 | || (*name == '.' && ((name[1] == '/' || |
5178 | (name[1] == '.' && name[2] == '/')) | |
5179 | || (name[1] == '\\' || | |
5180 | ( name[1] == '.' && name[2] == '\\'))) | |
5181 | ) | |
5182 | #else | |
be4b629d | 5183 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5184 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5185 | #endif |
0bd48802 | 5186 | ) |
be4b629d CN |
5187 | { |
5188 | return TRUE; | |
5189 | } | |
5190 | else | |
5191 | return FALSE; | |
5192 | } | |
241d1a3b NC |
5193 | |
5194 | /* | |
5195 | * Local variables: | |
5196 | * c-indentation-style: bsd | |
5197 | * c-basic-offset: 4 | |
5198 | * indent-tabs-mode: t | |
5199 | * End: | |
5200 | * | |
37442d52 RGS |
5201 | * ex: set ts=8 sts=4 sw=4 noet: |
5202 | */ |