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); | |
af9838cc | 380 | PL_curpm = pm; |
29f2e912 | 381 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
382 | } |
383 | ||
c90c0ff4 | 384 | void |
864dbfa3 | 385 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 386 | { |
387 | UV *p = (UV*)*rsp; | |
388 | U32 i; | |
7918f24d NC |
389 | |
390 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 391 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 392 | |
07bc277f | 393 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 394 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 395 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 396 | #else |
07bc277f | 397 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 398 | #endif |
c90c0ff4 | 399 | if (!p) |
a02a5408 | 400 | Newx(p, i, UV); |
c90c0ff4 | 401 | else |
402 | Renew(p, i, UV); | |
403 | *rsp = (void*)p; | |
404 | } | |
405 | ||
07bc277f | 406 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 407 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 408 | |
f8c7b90f | 409 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
410 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
411 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
412 | #endif |
413 | ||
07bc277f | 414 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 415 | |
07bc277f NC |
416 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
417 | *p++ = (UV)RX_SUBLEN(rx); | |
418 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
419 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
420 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 421 | } |
422 | } | |
423 | ||
9c105995 NC |
424 | static void |
425 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 426 | { |
427 | UV *p = (UV*)*rsp; | |
428 | U32 i; | |
7918f24d NC |
429 | |
430 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 431 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 432 | |
ed252734 | 433 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 434 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 435 | *p++ = 0; |
436 | ||
f8c7b90f | 437 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
438 | if (RX_SAVED_COPY(rx)) |
439 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
440 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
441 | *p++ = 0; |
442 | #endif | |
443 | ||
07bc277f | 444 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 445 | |
07bc277f NC |
446 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
447 | RX_SUBLEN(rx) = (I32)(*p++); | |
448 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
449 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
450 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 451 | } |
452 | } | |
453 | ||
9c105995 NC |
454 | static void |
455 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 456 | { |
44f8325f | 457 | UV * const p = (UV*)*rsp; |
7918f24d NC |
458 | |
459 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 460 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 461 | |
462 | if (p) { | |
94010e71 NC |
463 | #ifdef PERL_POISON |
464 | void *tmp = INT2PTR(char*,*p); | |
465 | Safefree(tmp); | |
466 | if (*p) | |
7e337ee0 | 467 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 468 | #else |
56431972 | 469 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 470 | #endif |
f8c7b90f | 471 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
472 | if (p[1]) { |
473 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
474 | } | |
475 | #endif | |
c90c0ff4 | 476 | Safefree(p); |
4608196e | 477 | *rsp = NULL; |
c90c0ff4 | 478 | } |
479 | } | |
480 | ||
a0d0e21e LW |
481 | PP(pp_formline) |
482 | { | |
97aff369 | 483 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 484 | register SV * const tmpForm = *++MARK; |
dea28490 | 485 | register U32 *fpc; |
a0d0e21e | 486 | register char *t; |
245d4a47 | 487 | const char *f; |
a0d0e21e | 488 | register I32 arg; |
c445ea15 AL |
489 | register SV *sv = NULL; |
490 | const char *item = NULL; | |
9c5ffd7c JH |
491 | I32 itemsize = 0; |
492 | I32 fieldsize = 0; | |
a0d0e21e | 493 | I32 lines = 0; |
c445ea15 AL |
494 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
495 | const char *chophere = NULL; | |
496 | char *linemark = NULL; | |
65202027 | 497 | NV value; |
9c5ffd7c | 498 | bool gotsome = FALSE; |
a0d0e21e | 499 | STRLEN len; |
823a54a3 | 500 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 501 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
502 | bool item_is_utf8 = FALSE; |
503 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 504 | SV * nsv = NULL; |
cbbf8932 | 505 | OP * parseres = NULL; |
bfed75c6 | 506 | const char *fmt; |
a0d0e21e | 507 | |
76e3520e | 508 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
509 | if (SvREADONLY(tmpForm)) { |
510 | SvREADONLY_off(tmpForm); | |
a1b95068 | 511 | parseres = doparseform(tmpForm); |
445b3f51 GS |
512 | SvREADONLY_on(tmpForm); |
513 | } | |
514 | else | |
a1b95068 WL |
515 | parseres = doparseform(tmpForm); |
516 | if (parseres) | |
517 | return parseres; | |
a0d0e21e | 518 | } |
3280af22 | 519 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
520 | if (DO_UTF8(PL_formtarget)) |
521 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 522 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 523 | t += len; |
245d4a47 | 524 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 525 | /* need to jump to the next word */ |
245d4a47 | 526 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
527 | |
528 | for (;;) { | |
529 | DEBUG_f( { | |
bfed75c6 | 530 | const char *name = "???"; |
a0d0e21e LW |
531 | arg = -1; |
532 | switch (*fpc) { | |
533 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
534 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
535 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
536 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
537 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
538 | ||
539 | case FF_CHECKNL: name = "CHECKNL"; break; | |
540 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
541 | case FF_SPACE: name = "SPACE"; break; | |
542 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
543 | case FF_ITEM: name = "ITEM"; break; | |
544 | case FF_CHOP: name = "CHOP"; break; | |
545 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
546 | case FF_NEWLINE: name = "NEWLINE"; break; | |
547 | case FF_MORE: name = "MORE"; break; | |
548 | case FF_LINEMARK: name = "LINEMARK"; break; | |
549 | case FF_END: name = "END"; break; | |
bfed75c6 | 550 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 551 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
552 | } |
553 | if (arg >= 0) | |
bf49b057 | 554 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 555 | else |
bf49b057 | 556 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 557 | } ); |
a0d0e21e LW |
558 | switch (*fpc++) { |
559 | case FF_LINEMARK: | |
560 | linemark = t; | |
a0d0e21e LW |
561 | lines++; |
562 | gotsome = FALSE; | |
563 | break; | |
564 | ||
565 | case FF_LITERAL: | |
566 | arg = *fpc++; | |
1bd51a4c | 567 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 568 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
569 | *t = '\0'; |
570 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
571 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 572 | f += arg; |
1bd51a4c IH |
573 | break; |
574 | } | |
575 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 576 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 577 | *t = '\0'; |
7bf79863 | 578 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
579 | t = SvEND(PL_formtarget); |
580 | targ_is_utf8 = TRUE; | |
581 | } | |
a0d0e21e LW |
582 | while (arg--) |
583 | *t++ = *f++; | |
584 | break; | |
585 | ||
586 | case FF_SKIP: | |
587 | f += *fpc++; | |
588 | break; | |
589 | ||
590 | case FF_FETCH: | |
591 | arg = *fpc++; | |
592 | f += arg; | |
593 | fieldsize = arg; | |
594 | ||
595 | if (MARK < SP) | |
596 | sv = *++MARK; | |
597 | else { | |
3280af22 | 598 | sv = &PL_sv_no; |
a2a5de95 | 599 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
600 | } |
601 | break; | |
602 | ||
603 | case FF_CHECKNL: | |
5a34cab7 NC |
604 | { |
605 | const char *send; | |
606 | const char *s = item = SvPV_const(sv, len); | |
607 | itemsize = len; | |
608 | if (DO_UTF8(sv)) { | |
609 | itemsize = sv_len_utf8(sv); | |
610 | if (itemsize != (I32)len) { | |
611 | I32 itembytes; | |
612 | if (itemsize > fieldsize) { | |
613 | itemsize = fieldsize; | |
614 | itembytes = itemsize; | |
615 | sv_pos_u2b(sv, &itembytes, 0); | |
616 | } | |
617 | else | |
618 | itembytes = len; | |
619 | send = chophere = s + itembytes; | |
620 | while (s < send) { | |
621 | if (*s & ~31) | |
622 | gotsome = TRUE; | |
623 | else if (*s == '\n') | |
624 | break; | |
625 | s++; | |
626 | } | |
627 | item_is_utf8 = TRUE; | |
628 | itemsize = s - item; | |
629 | sv_pos_b2u(sv, &itemsize); | |
630 | break; | |
a0ed51b3 | 631 | } |
a0ed51b3 | 632 | } |
5a34cab7 NC |
633 | item_is_utf8 = FALSE; |
634 | if (itemsize > fieldsize) | |
635 | itemsize = fieldsize; | |
636 | send = chophere = s + itemsize; | |
637 | while (s < send) { | |
638 | if (*s & ~31) | |
639 | gotsome = TRUE; | |
640 | else if (*s == '\n') | |
641 | break; | |
642 | s++; | |
643 | } | |
644 | itemsize = s - item; | |
645 | break; | |
a0ed51b3 | 646 | } |
a0d0e21e LW |
647 | |
648 | case FF_CHECKCHOP: | |
5a34cab7 NC |
649 | { |
650 | const char *s = item = SvPV_const(sv, len); | |
651 | itemsize = len; | |
652 | if (DO_UTF8(sv)) { | |
653 | itemsize = sv_len_utf8(sv); | |
654 | if (itemsize != (I32)len) { | |
655 | I32 itembytes; | |
656 | if (itemsize <= fieldsize) { | |
657 | const char *send = chophere = s + itemsize; | |
658 | while (s < send) { | |
659 | if (*s == '\r') { | |
660 | itemsize = s - item; | |
a0ed51b3 | 661 | chophere = s; |
a0ed51b3 | 662 | break; |
5a34cab7 NC |
663 | } |
664 | if (*s++ & ~31) | |
a0ed51b3 | 665 | gotsome = TRUE; |
a0ed51b3 | 666 | } |
a0ed51b3 | 667 | } |
5a34cab7 NC |
668 | else { |
669 | const char *send; | |
670 | itemsize = fieldsize; | |
671 | itembytes = itemsize; | |
672 | sv_pos_u2b(sv, &itembytes, 0); | |
673 | send = chophere = s + itembytes; | |
674 | while (s < send || (s == send && isSPACE(*s))) { | |
675 | if (isSPACE(*s)) { | |
676 | if (chopspace) | |
677 | chophere = s; | |
678 | if (*s == '\r') | |
679 | break; | |
680 | } | |
681 | else { | |
682 | if (*s & ~31) | |
683 | gotsome = TRUE; | |
684 | if (strchr(PL_chopset, *s)) | |
685 | chophere = s + 1; | |
686 | } | |
687 | s++; | |
688 | } | |
689 | itemsize = chophere - item; | |
690 | sv_pos_b2u(sv, &itemsize); | |
691 | } | |
692 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
693 | break; |
694 | } | |
a0d0e21e | 695 | } |
5a34cab7 NC |
696 | item_is_utf8 = FALSE; |
697 | if (itemsize <= fieldsize) { | |
698 | const char *const send = chophere = s + itemsize; | |
699 | while (s < send) { | |
700 | if (*s == '\r') { | |
701 | itemsize = s - item; | |
a0d0e21e | 702 | chophere = s; |
a0d0e21e | 703 | break; |
5a34cab7 NC |
704 | } |
705 | if (*s++ & ~31) | |
a0d0e21e | 706 | gotsome = TRUE; |
a0d0e21e | 707 | } |
a0d0e21e | 708 | } |
5a34cab7 NC |
709 | else { |
710 | const char *send; | |
711 | itemsize = fieldsize; | |
712 | send = chophere = s + itemsize; | |
713 | while (s < send || (s == send && isSPACE(*s))) { | |
714 | if (isSPACE(*s)) { | |
715 | if (chopspace) | |
716 | chophere = s; | |
717 | if (*s == '\r') | |
718 | break; | |
719 | } | |
720 | else { | |
721 | if (*s & ~31) | |
722 | gotsome = TRUE; | |
723 | if (strchr(PL_chopset, *s)) | |
724 | chophere = s + 1; | |
725 | } | |
726 | s++; | |
727 | } | |
728 | itemsize = chophere - item; | |
729 | } | |
730 | break; | |
a0d0e21e | 731 | } |
a0d0e21e LW |
732 | |
733 | case FF_SPACE: | |
734 | arg = fieldsize - itemsize; | |
735 | if (arg) { | |
736 | fieldsize -= arg; | |
737 | while (arg-- > 0) | |
738 | *t++ = ' '; | |
739 | } | |
740 | break; | |
741 | ||
742 | case FF_HALFSPACE: | |
743 | arg = fieldsize - itemsize; | |
744 | if (arg) { | |
745 | arg /= 2; | |
746 | fieldsize -= arg; | |
747 | while (arg-- > 0) | |
748 | *t++ = ' '; | |
749 | } | |
750 | break; | |
751 | ||
752 | case FF_ITEM: | |
5a34cab7 NC |
753 | { |
754 | const char *s = item; | |
755 | arg = itemsize; | |
756 | if (item_is_utf8) { | |
757 | if (!targ_is_utf8) { | |
758 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
759 | *t = '\0'; | |
7bf79863 KW |
760 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
761 | fudge + 1); | |
5a34cab7 NC |
762 | t = SvEND(PL_formtarget); |
763 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 764 | } |
5a34cab7 NC |
765 | while (arg--) { |
766 | if (UTF8_IS_CONTINUED(*s)) { | |
767 | STRLEN skip = UTF8SKIP(s); | |
768 | switch (skip) { | |
769 | default: | |
770 | Move(s,t,skip,char); | |
771 | s += skip; | |
772 | t += skip; | |
773 | break; | |
774 | case 7: *t++ = *s++; | |
775 | case 6: *t++ = *s++; | |
776 | case 5: *t++ = *s++; | |
777 | case 4: *t++ = *s++; | |
778 | case 3: *t++ = *s++; | |
779 | case 2: *t++ = *s++; | |
780 | case 1: *t++ = *s++; | |
781 | } | |
782 | } | |
783 | else { | |
784 | if ( !((*t++ = *s++) & ~31) ) | |
785 | t[-1] = ' '; | |
786 | } | |
a0ed51b3 | 787 | } |
5a34cab7 | 788 | break; |
a0ed51b3 | 789 | } |
5a34cab7 NC |
790 | if (targ_is_utf8 && !item_is_utf8) { |
791 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
792 | *t = '\0'; | |
793 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
794 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 795 | #ifdef EBCDIC |
901017d6 | 796 | const int ch = *t; |
5a34cab7 | 797 | if (iscntrl(ch)) |
78da4d13 | 798 | #else |
5a34cab7 | 799 | if (!(*t & ~31)) |
78da4d13 | 800 | #endif |
5a34cab7 NC |
801 | *t = ' '; |
802 | } | |
803 | break; | |
78da4d13 | 804 | } |
5a34cab7 | 805 | while (arg--) { |
9d116dd7 | 806 | #ifdef EBCDIC |
901017d6 | 807 | const int ch = *t++ = *s++; |
5a34cab7 | 808 | if (iscntrl(ch)) |
a0d0e21e | 809 | #else |
5a34cab7 | 810 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 811 | #endif |
5a34cab7 NC |
812 | t[-1] = ' '; |
813 | } | |
814 | break; | |
a0d0e21e | 815 | } |
a0d0e21e LW |
816 | |
817 | case FF_CHOP: | |
5a34cab7 NC |
818 | { |
819 | const char *s = chophere; | |
820 | if (chopspace) { | |
af68e756 | 821 | while (isSPACE(*s)) |
5a34cab7 NC |
822 | s++; |
823 | } | |
824 | sv_chop(sv,s); | |
825 | SvSETMAGIC(sv); | |
826 | break; | |
a0d0e21e | 827 | } |
a0d0e21e | 828 | |
a1b95068 WL |
829 | case FF_LINESNGL: |
830 | chopspace = 0; | |
a0d0e21e | 831 | case FF_LINEGLOB: |
5a34cab7 | 832 | { |
e32383e2 | 833 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 834 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 835 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 836 | itemsize = len; |
5a34cab7 | 837 | if (itemsize) { |
e8e72d41 | 838 | STRLEN to_copy = itemsize; |
5a34cab7 | 839 | const char *const send = s + len; |
35c6393c | 840 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
841 | U8 *tmp = NULL; |
842 | ||
5a34cab7 NC |
843 | gotsome = TRUE; |
844 | chophere = s + itemsize; | |
845 | while (s < send) { | |
846 | if (*s++ == '\n') { | |
847 | if (oneline) { | |
e8e72d41 | 848 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
849 | chophere = s; |
850 | break; | |
851 | } else { | |
852 | if (s == send) { | |
853 | itemsize--; | |
e8e72d41 | 854 | to_copy--; |
5a34cab7 NC |
855 | } else |
856 | lines++; | |
857 | } | |
1bd51a4c | 858 | } |
a0d0e21e | 859 | } |
e8e72d41 | 860 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 861 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
862 | SvCUR_set(PL_formtarget, |
863 | t - SvPVX_const(PL_formtarget)); | |
864 | } else { | |
865 | if (item_is_utf8 && !targ_is_utf8) { | |
866 | /* Upgrade targ to UTF8, and then we reduce it to | |
867 | a problem we have a simple solution for. */ | |
868 | SvCUR_set(PL_formtarget, | |
869 | t - SvPVX_const(PL_formtarget)); | |
870 | targ_is_utf8 = TRUE; | |
871 | /* Don't need get magic. */ | |
7bf79863 | 872 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
873 | } else { |
874 | SvCUR_set(PL_formtarget, | |
875 | t - SvPVX_const(PL_formtarget)); | |
876 | } | |
e8e72d41 NC |
877 | |
878 | /* Easy. They agree. */ | |
879 | assert (item_is_utf8 == targ_is_utf8); | |
880 | } | |
881 | SvGROW(PL_formtarget, | |
882 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 883 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
884 | |
885 | Copy(source, t, to_copy, char); | |
886 | t += to_copy; | |
887 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 888 | if (item_is_utf8) { |
e8e72d41 NC |
889 | if (SvGMAGICAL(sv)) { |
890 | /* Mustn't call sv_pos_b2u() as it does a second | |
891 | mg_get(). Is this a bug? Do we need a _flags() | |
892 | variant? */ | |
893 | itemsize = utf8_length(source, source + itemsize); | |
894 | } else { | |
895 | sv_pos_b2u(sv, &itemsize); | |
896 | } | |
897 | assert(!tmp); | |
898 | } else if (tmp) { | |
899 | Safefree(tmp); | |
f3f2f1a3 | 900 | } |
a0d0e21e | 901 | } |
5a34cab7 | 902 | break; |
a0d0e21e | 903 | } |
a0d0e21e | 904 | |
a1b95068 WL |
905 | case FF_0DECIMAL: |
906 | arg = *fpc++; | |
907 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
908 | fmt = (const char *) |
909 | ((arg & 256) ? | |
910 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 911 | #else |
10edeb5d JH |
912 | fmt = (const char *) |
913 | ((arg & 256) ? | |
914 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
915 | #endif |
916 | goto ff_dec; | |
a0d0e21e | 917 | case FF_DECIMAL: |
a0d0e21e | 918 | arg = *fpc++; |
65202027 | 919 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
920 | fmt = (const char *) |
921 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 922 | #else |
10edeb5d JH |
923 | fmt = (const char *) |
924 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 925 | #endif |
a1b95068 | 926 | ff_dec: |
784707d5 JP |
927 | /* If the field is marked with ^ and the value is undefined, |
928 | blank it out. */ | |
784707d5 JP |
929 | if ((arg & 512) && !SvOK(sv)) { |
930 | arg = fieldsize; | |
931 | while (arg--) | |
932 | *t++ = ' '; | |
933 | break; | |
934 | } | |
935 | gotsome = TRUE; | |
936 | value = SvNV(sv); | |
a1b95068 | 937 | /* overflow evidence */ |
bfed75c6 | 938 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
939 | arg = fieldsize; |
940 | while (arg--) | |
941 | *t++ = '#'; | |
942 | break; | |
943 | } | |
784707d5 JP |
944 | /* Formats aren't yet marked for locales, so assume "yes". */ |
945 | { | |
946 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 947 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
948 | RESTORE_NUMERIC_STANDARD(); |
949 | } | |
950 | t += fieldsize; | |
951 | break; | |
a1b95068 | 952 | |
a0d0e21e LW |
953 | case FF_NEWLINE: |
954 | f++; | |
955 | while (t-- > linemark && *t == ' ') ; | |
956 | t++; | |
957 | *t++ = '\n'; | |
958 | break; | |
959 | ||
960 | case FF_BLANK: | |
961 | arg = *fpc++; | |
962 | if (gotsome) { | |
963 | if (arg) { /* repeat until fields exhausted? */ | |
964 | *t = '\0'; | |
b15aece3 | 965 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 966 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
967 | if (targ_is_utf8) |
968 | SvUTF8_on(PL_formtarget); | |
3280af22 | 969 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
970 | SP = ORIGMARK; |
971 | RETURNOP(cLISTOP->op_first); | |
972 | } | |
973 | } | |
974 | else { | |
975 | t = linemark; | |
976 | lines--; | |
977 | } | |
978 | break; | |
979 | ||
980 | case FF_MORE: | |
5a34cab7 NC |
981 | { |
982 | const char *s = chophere; | |
983 | const char *send = item + len; | |
984 | if (chopspace) { | |
af68e756 | 985 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 986 | s++; |
a0d0e21e | 987 | } |
5a34cab7 NC |
988 | if (s < send) { |
989 | char *s1; | |
990 | arg = fieldsize - itemsize; | |
991 | if (arg) { | |
992 | fieldsize -= arg; | |
993 | while (arg-- > 0) | |
994 | *t++ = ' '; | |
995 | } | |
996 | s1 = t - 3; | |
997 | if (strnEQ(s1," ",3)) { | |
998 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
999 | s1--; | |
1000 | } | |
1001 | *s1++ = '.'; | |
1002 | *s1++ = '.'; | |
1003 | *s1++ = '.'; | |
a0d0e21e | 1004 | } |
5a34cab7 | 1005 | break; |
a0d0e21e | 1006 | } |
a0d0e21e LW |
1007 | case FF_END: |
1008 | *t = '\0'; | |
b15aece3 | 1009 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
1010 | if (targ_is_utf8) |
1011 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1012 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
1013 | SP = ORIGMARK; |
1014 | RETPUSHYES; | |
1015 | } | |
1016 | } | |
1017 | } | |
1018 | ||
1019 | PP(pp_grepstart) | |
1020 | { | |
27da23d5 | 1021 | dVAR; dSP; |
a0d0e21e LW |
1022 | SV *src; |
1023 | ||
3280af22 | 1024 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1025 | (void)POPMARK; |
54310121 | 1026 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1027 | mXPUSHi(0); |
533c011a | 1028 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1029 | } |
3280af22 | 1030 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
1031 | pp_pushmark(); /* push dst */ |
1032 | pp_pushmark(); /* push src */ | |
d343c3ef | 1033 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1034 | |
1035 | SAVETMPS; | |
59f00321 RGS |
1036 | if (PL_op->op_private & OPpGREP_LEX) |
1037 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1038 | else | |
1039 | SAVE_DEFSV; | |
d343c3ef | 1040 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1041 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1042 | |
3280af22 | 1043 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1044 | SvTEMP_off(src); |
59f00321 RGS |
1045 | if (PL_op->op_private & OPpGREP_LEX) |
1046 | PAD_SVl(PL_op->op_targ) = src; | |
1047 | else | |
414bf5ae | 1048 | DEFSV_set(src); |
a0d0e21e LW |
1049 | |
1050 | PUTBACK; | |
533c011a | 1051 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 1052 | pp_pushmark(); /* push top */ |
533c011a | 1053 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1054 | } |
1055 | ||
a0d0e21e LW |
1056 | PP(pp_mapwhile) |
1057 | { | |
27da23d5 | 1058 | dVAR; dSP; |
f54cb97a | 1059 | const I32 gimme = GIMME_V; |
544f3153 | 1060 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1061 | I32 count; |
1062 | I32 shift; | |
1063 | SV** src; | |
ac27b0f5 | 1064 | SV** dst; |
a0d0e21e | 1065 | |
544f3153 | 1066 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1067 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1068 | |
1069 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1070 | if (items && gimme != G_VOID) { |
544f3153 GS |
1071 | /* might need to make room back there first */ |
1072 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1073 | /* XXX this implementation is very pessimal because the stack | |
1074 | * is repeatedly extended for every set of items. Is possible | |
1075 | * to do this without any stack extension or copying at all | |
1076 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1077 | * (like foreach does). --gsar */ |
544f3153 GS |
1078 | |
1079 | /* everything in the stack after the destination list moves | |
1080 | * towards the end the stack by the amount of room needed */ | |
1081 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1082 | ||
1083 | /* items to shift up (accounting for the moved source pointer) */ | |
1084 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1085 | |
1086 | /* This optimization is by Ben Tilly and it does | |
1087 | * things differently from what Sarathy (gsar) | |
1088 | * is describing. The downside of this optimization is | |
1089 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1090 | * to the Perl stack, but on the other hand this | |
1091 | * shouldn't be a problem. If Sarathy's idea gets | |
1092 | * implemented, this optimization should become | |
1093 | * irrelevant. --jhi */ | |
1094 | if (shift < count) | |
1095 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1096 | |
924508f0 GS |
1097 | EXTEND(SP,shift); |
1098 | src = SP; | |
1099 | dst = (SP += shift); | |
3280af22 NIS |
1100 | PL_markstack_ptr[-1] += shift; |
1101 | *PL_markstack_ptr += shift; | |
544f3153 | 1102 | while (count--) |
a0d0e21e LW |
1103 | *dst-- = *src--; |
1104 | } | |
544f3153 | 1105 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1106 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1107 | if (gimme == G_ARRAY) { |
1108 | while (items-- > 0) | |
1109 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1110 | } | |
bfed75c6 | 1111 | else { |
22023b26 TP |
1112 | /* scalar context: we don't care about which values map returns |
1113 | * (we use undef here). And so we certainly don't want to do mortal | |
1114 | * copies of meaningless values. */ | |
1115 | while (items-- > 0) { | |
b988aa42 | 1116 | (void)POPs; |
22023b26 TP |
1117 | *dst-- = &PL_sv_undef; |
1118 | } | |
1119 | } | |
a0d0e21e | 1120 | } |
d343c3ef | 1121 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1122 | |
1123 | /* All done yet? */ | |
3280af22 | 1124 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1125 | |
1126 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1127 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1128 | (void)POPMARK; /* pop src */ |
3280af22 | 1129 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1130 | (void)POPMARK; /* pop dst */ |
3280af22 | 1131 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1132 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1133 | if (PL_op->op_private & OPpGREP_LEX) { |
1134 | SV* sv = sv_newmortal(); | |
1135 | sv_setiv(sv, items); | |
1136 | PUSHs(sv); | |
1137 | } | |
1138 | else { | |
1139 | dTARGET; | |
1140 | XPUSHi(items); | |
1141 | } | |
a0d0e21e | 1142 | } |
54310121 | 1143 | else if (gimme == G_ARRAY) |
1144 | SP += items; | |
a0d0e21e LW |
1145 | RETURN; |
1146 | } | |
1147 | else { | |
1148 | SV *src; | |
1149 | ||
d343c3ef | 1150 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1151 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1152 | |
544f3153 | 1153 | /* set $_ to the new source item */ |
3280af22 | 1154 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1155 | SvTEMP_off(src); |
59f00321 RGS |
1156 | if (PL_op->op_private & OPpGREP_LEX) |
1157 | PAD_SVl(PL_op->op_targ) = src; | |
1158 | else | |
414bf5ae | 1159 | DEFSV_set(src); |
a0d0e21e LW |
1160 | |
1161 | RETURNOP(cLOGOP->op_other); | |
1162 | } | |
1163 | } | |
1164 | ||
a0d0e21e LW |
1165 | /* Range stuff. */ |
1166 | ||
1167 | PP(pp_range) | |
1168 | { | |
97aff369 | 1169 | dVAR; |
a0d0e21e | 1170 | if (GIMME == G_ARRAY) |
1a67a97c | 1171 | return NORMAL; |
538573f7 | 1172 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1173 | return cLOGOP->op_other; |
538573f7 | 1174 | else |
1a67a97c | 1175 | return NORMAL; |
a0d0e21e LW |
1176 | } |
1177 | ||
1178 | PP(pp_flip) | |
1179 | { | |
97aff369 | 1180 | dVAR; |
39644a26 | 1181 | dSP; |
a0d0e21e LW |
1182 | |
1183 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1184 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1185 | } |
1186 | else { | |
1187 | dTOPss; | |
44f8325f | 1188 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1189 | int flip = 0; |
790090df | 1190 | |
bfed75c6 | 1191 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1192 | if (GvIO(PL_last_in_gv)) { |
1193 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1194 | } | |
1195 | else { | |
fafc274c | 1196 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1197 | if (gv && GvSV(gv)) |
1198 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1199 | } |
bfed75c6 AL |
1200 | } else { |
1201 | flip = SvTRUE(sv); | |
1202 | } | |
1203 | if (flip) { | |
a0d0e21e | 1204 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1205 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1206 | sv_setiv(targ, 1); |
3e3baf6d | 1207 | SETs(targ); |
a0d0e21e LW |
1208 | RETURN; |
1209 | } | |
1210 | else { | |
1211 | sv_setiv(targ, 0); | |
924508f0 | 1212 | SP--; |
1a67a97c | 1213 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1214 | } |
1215 | } | |
76f68e9b | 1216 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1217 | SETs(targ); |
1218 | RETURN; | |
1219 | } | |
1220 | } | |
1221 | ||
8e9bbdb9 RGS |
1222 | /* This code tries to decide if "$left .. $right" should use the |
1223 | magical string increment, or if the range is numeric (we make | |
1224 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1225 | ||
1226 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1227 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1228 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1229 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1230 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1231 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1232 | |
a0d0e21e LW |
1233 | PP(pp_flop) |
1234 | { | |
97aff369 | 1235 | dVAR; dSP; |
a0d0e21e LW |
1236 | |
1237 | if (GIMME == G_ARRAY) { | |
1238 | dPOPPOPssrl; | |
86cb7173 | 1239 | |
5b295bef RD |
1240 | SvGETMAGIC(left); |
1241 | SvGETMAGIC(right); | |
a0d0e21e | 1242 | |
8e9bbdb9 | 1243 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1244 | register IV i, j; |
1245 | IV max; | |
4fe3f0fa MHM |
1246 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1247 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1248 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1249 | i = SvIV(left); |
1250 | max = SvIV(right); | |
bbce6d69 | 1251 | if (max >= i) { |
c1ab3db2 AK |
1252 | j = max - i + 1; |
1253 | EXTEND_MORTAL(j); | |
1254 | EXTEND(SP, j); | |
bbce6d69 | 1255 | } |
c1ab3db2 AK |
1256 | else |
1257 | j = 0; | |
1258 | while (j--) { | |
901017d6 | 1259 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1260 | PUSHs(sv); |
1261 | } | |
1262 | } | |
1263 | else { | |
44f8325f | 1264 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1265 | STRLEN len; |
823a54a3 | 1266 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1267 | |
901017d6 | 1268 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1269 | SvPV_force_nolen(sv); |
89ea2908 | 1270 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1271 | XPUSHs(sv); |
b15aece3 | 1272 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1273 | break; |
a0d0e21e LW |
1274 | sv = sv_2mortal(newSVsv(sv)); |
1275 | sv_inc(sv); | |
1276 | } | |
a0d0e21e LW |
1277 | } |
1278 | } | |
1279 | else { | |
1280 | dTOPss; | |
901017d6 | 1281 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1282 | int flop = 0; |
a0d0e21e | 1283 | sv_inc(targ); |
4e3399f9 YST |
1284 | |
1285 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1286 | if (GvIO(PL_last_in_gv)) { | |
1287 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1288 | } | |
1289 | else { | |
fafc274c | 1290 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1291 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1292 | } | |
1293 | } | |
1294 | else { | |
1295 | flop = SvTRUE(sv); | |
1296 | } | |
1297 | ||
1298 | if (flop) { | |
a0d0e21e | 1299 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1300 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1301 | } |
1302 | SETs(targ); | |
1303 | } | |
1304 | ||
1305 | RETURN; | |
1306 | } | |
1307 | ||
1308 | /* Control. */ | |
1309 | ||
27da23d5 | 1310 | static const char * const context_name[] = { |
515afda2 | 1311 | "pseudo-block", |
f31522f3 | 1312 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1313 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1314 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1315 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1316 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1317 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1318 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1319 | "subroutine", |
76753e7f | 1320 | "format", |
515afda2 | 1321 | "eval", |
515afda2 | 1322 | "substitution", |
515afda2 NC |
1323 | }; |
1324 | ||
76e3520e | 1325 | STATIC I32 |
06b5626a | 1326 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1327 | { |
97aff369 | 1328 | dVAR; |
a0d0e21e | 1329 | register I32 i; |
a0d0e21e | 1330 | |
7918f24d NC |
1331 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1332 | ||
a0d0e21e | 1333 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1334 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1335 | switch (CxTYPE(cx)) { |
a0d0e21e | 1336 | case CXt_SUBST: |
a0d0e21e | 1337 | case CXt_SUB: |
7766f137 | 1338 | case CXt_FORMAT: |
a0d0e21e | 1339 | case CXt_EVAL: |
0a753a76 | 1340 | case CXt_NULL: |
a2a5de95 NC |
1341 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1342 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1343 | if (CxTYPE(cx) == CXt_NULL) |
1344 | return -1; | |
1345 | break; | |
c6fdafd0 | 1346 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1347 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1348 | case CXt_LOOP_FOR: |
1349 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1350 | { |
1351 | const char *cx_label = CxLABEL(cx); | |
1352 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1353 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1354 | (long)i, cx_label)); |
a0d0e21e LW |
1355 | continue; |
1356 | } | |
1c98cc53 | 1357 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1358 | return i; |
7e8f1eac | 1359 | } |
a0d0e21e LW |
1360 | } |
1361 | } | |
1362 | return i; | |
1363 | } | |
1364 | ||
0d863452 RH |
1365 | |
1366 | ||
e50aee73 | 1367 | I32 |
864dbfa3 | 1368 | Perl_dowantarray(pTHX) |
e50aee73 | 1369 | { |
97aff369 | 1370 | dVAR; |
f54cb97a | 1371 | const I32 gimme = block_gimme(); |
54310121 | 1372 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1373 | } | |
1374 | ||
1375 | I32 | |
864dbfa3 | 1376 | Perl_block_gimme(pTHX) |
54310121 | 1377 | { |
97aff369 | 1378 | dVAR; |
06b5626a | 1379 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1380 | if (cxix < 0) |
46fc3d4c | 1381 | return G_VOID; |
e50aee73 | 1382 | |
54310121 | 1383 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1384 | case G_VOID: |
1385 | return G_VOID; | |
54310121 | 1386 | case G_SCALAR: |
e50aee73 | 1387 | return G_SCALAR; |
54310121 | 1388 | case G_ARRAY: |
1389 | return G_ARRAY; | |
1390 | default: | |
cea2e8a9 | 1391 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1392 | /* NOTREACHED */ |
1393 | return 0; | |
54310121 | 1394 | } |
e50aee73 AD |
1395 | } |
1396 | ||
78f9721b SM |
1397 | I32 |
1398 | Perl_is_lvalue_sub(pTHX) | |
1399 | { | |
97aff369 | 1400 | dVAR; |
06b5626a | 1401 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1402 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1403 | ||
bafb2adc NC |
1404 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1405 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1406 | else |
1407 | return 0; | |
1408 | } | |
1409 | ||
76e3520e | 1410 | STATIC I32 |
901017d6 | 1411 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1412 | { |
97aff369 | 1413 | dVAR; |
a0d0e21e | 1414 | I32 i; |
7918f24d NC |
1415 | |
1416 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1417 | ||
a0d0e21e | 1418 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1419 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1420 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1421 | default: |
1422 | continue; | |
1423 | case CXt_EVAL: | |
1424 | case CXt_SUB: | |
7766f137 | 1425 | case CXt_FORMAT: |
1c98cc53 | 1426 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1427 | return i; |
1428 | } | |
1429 | } | |
1430 | return i; | |
1431 | } | |
1432 | ||
76e3520e | 1433 | STATIC I32 |
cea2e8a9 | 1434 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1435 | { |
97aff369 | 1436 | dVAR; |
a0d0e21e | 1437 | I32 i; |
a0d0e21e | 1438 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1439 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1440 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1441 | default: |
1442 | continue; | |
1443 | case CXt_EVAL: | |
1c98cc53 | 1444 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1445 | return i; |
1446 | } | |
1447 | } | |
1448 | return i; | |
1449 | } | |
1450 | ||
76e3520e | 1451 | STATIC I32 |
cea2e8a9 | 1452 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1453 | { |
97aff369 | 1454 | dVAR; |
a0d0e21e | 1455 | I32 i; |
a0d0e21e | 1456 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1457 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1458 | switch (CxTYPE(cx)) { |
a0d0e21e | 1459 | case CXt_SUBST: |
a0d0e21e | 1460 | case CXt_SUB: |
7766f137 | 1461 | case CXt_FORMAT: |
a0d0e21e | 1462 | case CXt_EVAL: |
0a753a76 | 1463 | case CXt_NULL: |
a2a5de95 NC |
1464 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1465 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1466 | if ((CxTYPE(cx)) == CXt_NULL) |
1467 | return -1; | |
1468 | break; | |
c6fdafd0 | 1469 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1470 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1471 | case CXt_LOOP_FOR: |
1472 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1473 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1474 | return i; |
1475 | } | |
1476 | } | |
1477 | return i; | |
1478 | } | |
1479 | ||
0d863452 RH |
1480 | STATIC I32 |
1481 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1482 | { | |
97aff369 | 1483 | dVAR; |
0d863452 RH |
1484 | I32 i; |
1485 | for (i = startingblock; i >= 0; i--) { | |
1486 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1487 | switch (CxTYPE(cx)) { | |
1488 | default: | |
1489 | continue; | |
1490 | case CXt_GIVEN: | |
1c98cc53 | 1491 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1492 | return i; |
3b719c58 NC |
1493 | case CXt_LOOP_PLAIN: |
1494 | assert(!CxFOREACHDEF(cx)); | |
1495 | break; | |
c6fdafd0 | 1496 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1497 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1498 | case CXt_LOOP_FOR: |
0d863452 | 1499 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1500 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1501 | return i; |
1502 | } | |
1503 | } | |
1504 | } | |
1505 | return i; | |
1506 | } | |
1507 | ||
1508 | STATIC I32 | |
1509 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1510 | { | |
97aff369 | 1511 | dVAR; |
0d863452 RH |
1512 | I32 i; |
1513 | for (i = startingblock; i >= 0; i--) { | |
1514 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1515 | switch (CxTYPE(cx)) { | |
1516 | default: | |
1517 | continue; | |
1518 | case CXt_WHEN: | |
1c98cc53 | 1519 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1520 | return i; |
1521 | } | |
1522 | } | |
1523 | return i; | |
1524 | } | |
1525 | ||
a0d0e21e | 1526 | void |
864dbfa3 | 1527 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1528 | { |
97aff369 | 1529 | dVAR; |
a0d0e21e LW |
1530 | I32 optype; |
1531 | ||
1532 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1533 | SV *sv; |
06b5626a | 1534 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1535 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1536 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1537 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1538 | case CXt_SUBST: |
1539 | POPSUBST(cx); | |
1540 | continue; /* not break */ | |
a0d0e21e | 1541 | case CXt_SUB: |
b0d9ce38 GS |
1542 | POPSUB(cx,sv); |
1543 | LEAVESUB(sv); | |
a0d0e21e LW |
1544 | break; |
1545 | case CXt_EVAL: | |
1546 | POPEVAL(cx); | |
1547 | break; | |
c6fdafd0 | 1548 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1549 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1550 | case CXt_LOOP_FOR: |
1551 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1552 | POPLOOP(cx); |
1553 | break; | |
0a753a76 | 1554 | case CXt_NULL: |
a0d0e21e | 1555 | break; |
7766f137 GS |
1556 | case CXt_FORMAT: |
1557 | POPFORMAT(cx); | |
1558 | break; | |
a0d0e21e | 1559 | } |
c90c0ff4 | 1560 | cxstack_ix--; |
a0d0e21e | 1561 | } |
1b6737cc | 1562 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1563 | } |
1564 | ||
5a844595 GS |
1565 | void |
1566 | Perl_qerror(pTHX_ SV *err) | |
1567 | { | |
97aff369 | 1568 | dVAR; |
7918f24d NC |
1569 | |
1570 | PERL_ARGS_ASSERT_QERROR; | |
1571 | ||
5a844595 GS |
1572 | if (PL_in_eval) |
1573 | sv_catsv(ERRSV, err); | |
1574 | else if (PL_errors) | |
1575 | sv_catsv(PL_errors, err); | |
1576 | else | |
be2597df | 1577 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1578 | if (PL_parser) |
1579 | ++PL_parser->error_count; | |
5a844595 GS |
1580 | } |
1581 | ||
bb4c52e0 | 1582 | void |
c5df3096 | 1583 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1584 | { |
27da23d5 | 1585 | dVAR; |
c5df3096 | 1586 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1587 | U8 in_eval = PL_in_eval; |
c5df3096 | 1588 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1589 | |
96d9b9cd | 1590 | if (in_eval) { |
a0d0e21e | 1591 | I32 cxix; |
a0d0e21e | 1592 | I32 gimme; |
a0d0e21e | 1593 | |
5a844595 GS |
1594 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1595 | && PL_curstackinfo->si_prev) | |
1596 | { | |
bac4b2ad | 1597 | dounwind(-1); |
d3acc0f7 | 1598 | POPSTACK; |
bac4b2ad | 1599 | } |
e336de0d | 1600 | |
a0d0e21e LW |
1601 | if (cxix >= 0) { |
1602 | I32 optype; | |
b6494f15 | 1603 | SV *namesv; |
35a4481c | 1604 | register PERL_CONTEXT *cx; |
901017d6 | 1605 | SV **newsp; |
a0d0e21e LW |
1606 | |
1607 | if (cxix < cxstack_ix) | |
1608 | dounwind(cxix); | |
1609 | ||
3280af22 | 1610 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1611 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1612 | STRLEN msglen; |
96d9b9cd | 1613 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1614 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1615 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1616 | my_exit(1); |
1617 | } | |
1618 | POPEVAL(cx); | |
b6494f15 | 1619 | namesv = cx->blk_eval.old_namesv; |
a0d0e21e LW |
1620 | |
1621 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1622 | *++newsp = &PL_sv_undef; |
1623 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1624 | |
1625 | LEAVE; | |
748a9306 | 1626 | |
7fb6a879 GS |
1627 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1628 | * XXX it might be better to find a way to avoid messing with | |
1629 | * PL_curcop in save_re_context() instead, but this is a more | |
1630 | * minimal fix --GSAR */ | |
1631 | PL_curcop = cx->blk_oldcop; | |
1632 | ||
7a2e2cd6 | 1633 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1634 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1635 | (void)hv_store(GvHVn(PL_incgv), |
1636 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1637 | &PL_sv_undef, 0); |
27e90453 DM |
1638 | /* note that unlike pp_entereval, pp_require isn't |
1639 | * supposed to trap errors. So now that we've popped the | |
1640 | * EVAL that pp_require pushed, and processed the error | |
1641 | * message, rethrow the error */ | |
9fed9930 NC |
1642 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1643 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1644 | } |
c5df3096 | 1645 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1646 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1647 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1648 | } |
1649 | else { | |
1650 | sv_setsv(ERRSV, exceptsv); | |
1651 | } | |
f39bc417 | 1652 | assert(CxTYPE(cx) == CXt_EVAL); |
febb3a6d | 1653 | PL_restartjmpenv = cx->blk_eval.cur_top_env; |
bb4c52e0 GG |
1654 | PL_restartop = cx->blk_eval.retop; |
1655 | JMPENV_JUMP(3); | |
1656 | /* NOTREACHED */ | |
a0d0e21e LW |
1657 | } |
1658 | } | |
87582a92 | 1659 | |
96d9b9cd | 1660 | write_to_stderr(exceptsv); |
f86702cc | 1661 | my_failure_exit(); |
1662 | /* NOTREACHED */ | |
a0d0e21e LW |
1663 | } |
1664 | ||
1665 | PP(pp_xor) | |
1666 | { | |
97aff369 | 1667 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1668 | if (SvTRUE(left) != SvTRUE(right)) |
1669 | RETSETYES; | |
1670 | else | |
1671 | RETSETNO; | |
1672 | } | |
1673 | ||
8dff4fc5 BM |
1674 | /* |
1675 | =for apidoc caller_cx | |
1676 | ||
1677 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1678 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1679 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1680 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1681 | immediately-surrounding Perl code. | |
1682 | ||
1683 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1684 | behalf of the debugger. If the stack frame requested was a sub called by | |
1685 | C<DB::sub>, the return value will be the frame for the call to | |
1686 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1687 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1688 | frame for the sub call itself. | |
1689 | ||
1690 | =cut | |
1691 | */ | |
1692 | ||
1693 | const PERL_CONTEXT * | |
1694 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1695 | { |
a0d0e21e | 1696 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1697 | register const PERL_CONTEXT *cx; |
1698 | register const PERL_CONTEXT *ccstack = cxstack; | |
1699 | const PERL_SI *top_si = PL_curstackinfo; | |
27d41816 | 1700 | |
a0d0e21e | 1701 | for (;;) { |
2c375eb9 GS |
1702 | /* we may be in a higher stacklevel, so dig down deeper */ |
1703 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1704 | top_si = top_si->si_prev; | |
1705 | ccstack = top_si->si_cxstack; | |
1706 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1707 | } | |
8dff4fc5 BM |
1708 | if (cxix < 0) |
1709 | return NULL; | |
f2a7f298 DG |
1710 | /* caller() should not report the automatic calls to &DB::sub */ |
1711 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1712 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1713 | count++; |
1714 | if (!count--) | |
1715 | break; | |
2c375eb9 | 1716 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1717 | } |
2c375eb9 GS |
1718 | |
1719 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1720 | if (dbcxp) *dbcxp = cx; |
1721 | ||
7766f137 | 1722 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1723 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1724 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1725 | field below is defined for any cx. */ |
f2a7f298 DG |
1726 | /* caller() should not report the automatic calls to &DB::sub */ |
1727 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1728 | cx = &ccstack[dbcxix]; |
06a5b730 | 1729 | } |
1730 | ||
8dff4fc5 BM |
1731 | return cx; |
1732 | } | |
1733 | ||
1734 | PP(pp_caller) | |
1735 | { | |
1736 | dVAR; | |
1737 | dSP; | |
1738 | register const PERL_CONTEXT *cx; | |
1739 | const PERL_CONTEXT *dbcx; | |
1740 | I32 gimme; | |
1741 | const char *stashname; | |
1742 | I32 count = 0; | |
1743 | ||
1744 | if (MAXARG) | |
1745 | count = POPi; | |
1746 | ||
1747 | cx = caller_cx(count, &dbcx); | |
1748 | if (!cx) { | |
1749 | if (GIMME != G_ARRAY) { | |
1750 | EXTEND(SP, 1); | |
1751 | RETPUSHUNDEF; | |
1752 | } | |
1753 | RETURN; | |
1754 | } | |
1755 | ||
ed094faf | 1756 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1757 | if (GIMME != G_ARRAY) { |
27d41816 | 1758 | EXTEND(SP, 1); |
ed094faf | 1759 | if (!stashname) |
3280af22 | 1760 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1761 | else { |
1762 | dTARGET; | |
ed094faf | 1763 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1764 | PUSHs(TARG); |
1765 | } | |
a0d0e21e LW |
1766 | RETURN; |
1767 | } | |
a0d0e21e | 1768 | |
b3ca2e83 | 1769 | EXTEND(SP, 11); |
27d41816 | 1770 | |
ed094faf | 1771 | if (!stashname) |
3280af22 | 1772 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1773 | else |
6e449a3a MHM |
1774 | mPUSHs(newSVpv(stashname, 0)); |
1775 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1776 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1777 | if (!MAXARG) |
1778 | RETURN; | |
7766f137 | 1779 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1780 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1781 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1782 | if (isGV(cvgv)) { |
561b68a9 | 1783 | SV * const sv = newSV(0); |
c445ea15 | 1784 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1785 | mPUSHs(sv); |
bf38a478 | 1786 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1787 | } |
1788 | else { | |
84bafc02 | 1789 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1790 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1791 | } |
a0d0e21e LW |
1792 | } |
1793 | else { | |
84bafc02 | 1794 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1795 | mPUSHi(0); |
a0d0e21e | 1796 | } |
54310121 | 1797 | gimme = (I32)cx->blk_gimme; |
1798 | if (gimme == G_VOID) | |
3280af22 | 1799 | PUSHs(&PL_sv_undef); |
54310121 | 1800 | else |
98625aca | 1801 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1802 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1803 | /* eval STRING */ |
85a64632 | 1804 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1805 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1806 | PUSHs(&PL_sv_no); |
0f79a09d | 1807 | } |
811a4de9 | 1808 | /* require */ |
0f79a09d | 1809 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1810 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1811 | PUSHs(&PL_sv_yes); |
06a5b730 | 1812 | } |
811a4de9 GS |
1813 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1814 | else { | |
1815 | PUSHs(&PL_sv_undef); | |
1816 | PUSHs(&PL_sv_undef); | |
1817 | } | |
4633a7c4 | 1818 | } |
a682de96 GS |
1819 | else { |
1820 | PUSHs(&PL_sv_undef); | |
1821 | PUSHs(&PL_sv_undef); | |
1822 | } | |
bafb2adc | 1823 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1824 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1825 | { |
66a1b24b AL |
1826 | AV * const ary = cx->blk_sub.argarray; |
1827 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1828 | |
5b235299 NC |
1829 | if (!PL_dbargs) |
1830 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1831 | |
3280af22 NIS |
1832 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1833 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1834 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1835 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1836 | } |
f3aa04c2 GS |
1837 | /* XXX only hints propagated via op_private are currently |
1838 | * visible (others are not easily accessible, since they | |
1839 | * use the global PL_hints) */ | |
6e449a3a | 1840 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1841 | { |
1842 | SV * mask ; | |
72dc9ed5 | 1843 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1844 | |
ac27b0f5 | 1845 | if (old_warnings == pWARN_NONE || |
114bafba | 1846 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1847 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1848 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1849 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1850 | /* Get the bit mask for $warnings::Bits{all}, because | |
1851 | * it could have been extended by warnings::register */ | |
1852 | SV **bits_all; | |
6673a63c | 1853 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1854 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1855 | mask = newSVsv(*bits_all); |
1856 | } | |
1857 | else { | |
1858 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1859 | } | |
1860 | } | |
e476b1b5 | 1861 | else |
72dc9ed5 | 1862 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1863 | mPUSHs(mask); |
e476b1b5 | 1864 | } |
b3ca2e83 | 1865 | |
c28fe1ec | 1866 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1867 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1868 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1869 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1870 | : &PL_sv_undef); |
a0d0e21e LW |
1871 | RETURN; |
1872 | } | |
1873 | ||
a0d0e21e LW |
1874 | PP(pp_reset) |
1875 | { | |
97aff369 | 1876 | dVAR; |
39644a26 | 1877 | dSP; |
10edeb5d | 1878 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1879 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1880 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1881 | RETURN; |
1882 | } | |
1883 | ||
dd2155a4 DM |
1884 | /* like pp_nextstate, but used instead when the debugger is active */ |
1885 | ||
a0d0e21e LW |
1886 | PP(pp_dbstate) |
1887 | { | |
27da23d5 | 1888 | dVAR; |
533c011a | 1889 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1890 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1891 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1892 | FREETMPS; |
1893 | ||
f410a211 NC |
1894 | PERL_ASYNC_CHECK(); |
1895 | ||
5df8de69 DM |
1896 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1897 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1898 | { |
39644a26 | 1899 | dSP; |
c09156bb | 1900 | register PERL_CONTEXT *cx; |
f54cb97a | 1901 | const I32 gimme = G_ARRAY; |
eb160463 | 1902 | U8 hasargs; |
0bd48802 AL |
1903 | GV * const gv = PL_DBgv; |
1904 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1905 | |
a0d0e21e | 1906 | if (!cv) |
cea2e8a9 | 1907 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1908 | |
aea4f609 DM |
1909 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1910 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1911 | return NORMAL; |
748a9306 | 1912 | |
a57c6685 | 1913 | ENTER; |
4633a7c4 LW |
1914 | SAVETMPS; |
1915 | ||
3280af22 | 1916 | SAVEI32(PL_debug); |
55497cff | 1917 | SAVESTACK_POS(); |
3280af22 | 1918 | PL_debug = 0; |
748a9306 | 1919 | hasargs = 0; |
924508f0 | 1920 | SPAGAIN; |
748a9306 | 1921 | |
aed2304a | 1922 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1923 | CvDEPTH(cv)++; |
1924 | PUSHMARK(SP); | |
1925 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1926 | CvDEPTH(cv)--; | |
1927 | FREETMPS; | |
a57c6685 | 1928 | LEAVE; |
c127bd3a SF |
1929 | return NORMAL; |
1930 | } | |
1931 | else { | |
1932 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1933 | PUSHSUB_DB(cx); | |
1934 | cx->blk_sub.retop = PL_op->op_next; | |
1935 | CvDEPTH(cv)++; | |
1936 | SAVECOMPPAD(); | |
1937 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1938 | RETURNOP(CvSTART(cv)); | |
1939 | } | |
a0d0e21e LW |
1940 | } |
1941 | else | |
1942 | return NORMAL; | |
1943 | } | |
1944 | ||
a0d0e21e LW |
1945 | PP(pp_enteriter) |
1946 | { | |
27da23d5 | 1947 | dVAR; dSP; dMARK; |
c09156bb | 1948 | register PERL_CONTEXT *cx; |
f54cb97a | 1949 | const I32 gimme = GIMME_V; |
df530c37 | 1950 | void *itervar; /* location of the iteration variable */ |
840fe433 | 1951 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 1952 | |
d343c3ef | 1953 | ENTER_with_name("loop1"); |
4633a7c4 LW |
1954 | SAVETMPS; |
1955 | ||
aafca525 DM |
1956 | if (PL_op->op_targ) { /* "my" variable */ |
1957 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
1958 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
1959 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1960 | SVs_PADSTALE, SVs_PADSTALE); | |
1961 | } | |
09edbca0 | 1962 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 1963 | #ifdef USE_ITHREADS |
df530c37 | 1964 | itervar = PL_comppad; |
89e00a7c | 1965 | #else |
aafca525 | 1966 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 1967 | #endif |
54b9620d | 1968 | } |
aafca525 | 1969 | else { /* symbol table variable */ |
159b6efe | 1970 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
1971 | SV** svp = &GvSV(gv); |
1972 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 1973 | *svp = newSV(0); |
df530c37 | 1974 | itervar = (void *)gv; |
54b9620d | 1975 | } |
4633a7c4 | 1976 | |
0d863452 RH |
1977 | if (PL_op->op_private & OPpITER_DEF) |
1978 | cxtype |= CXp_FOR_DEF; | |
1979 | ||
d343c3ef | 1980 | ENTER_with_name("loop2"); |
a0d0e21e | 1981 | |
7766f137 | 1982 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 1983 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 1984 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
1985 | SV *maybe_ary = POPs; |
1986 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 1987 | dPOPss; |
d01136d6 | 1988 | SV * const right = maybe_ary; |
984a4bea RD |
1989 | SvGETMAGIC(sv); |
1990 | SvGETMAGIC(right); | |
4fe3f0fa | 1991 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 1992 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
1993 | cx->cx_type |= CXt_LOOP_LAZYIV; |
1994 | /* Make sure that no-one re-orders cop.h and breaks our | |
1995 | assumptions */ | |
1996 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
1997 | #ifdef NV_PRESERVES_UV |
1998 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
1999 | (SvNV(sv) > (NV)IV_MAX))) | |
2000 | || | |
2001 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
2002 | (SvNV(right) < (NV)IV_MIN)))) | |
2003 | #else | |
2004 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
2005 | || | |
2006 | ((SvNV(sv) > 0) && | |
2007 | ((SvUV(sv) > (UV)IV_MAX) || | |
2008 | (SvNV(sv) > (NV)UV_MAX))))) | |
2009 | || | |
2010 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
2011 | || | |
2012 | ((SvNV(right) > 0) && | |
2013 | ((SvUV(right) > (UV)IV_MAX) || | |
2014 | (SvNV(right) > (NV)UV_MAX)))))) | |
2015 | #endif | |
076d9a11 | 2016 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
2017 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
2018 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2019 | #ifdef DEBUGGING |
2020 | /* for correct -Dstv display */ | |
2021 | cx->blk_oldsp = sp - PL_stack_base; | |
2022 | #endif | |
89ea2908 | 2023 | } |
3f63a782 | 2024 | else { |
d01136d6 BS |
2025 | cx->cx_type &= ~CXTYPEMASK; |
2026 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2027 | /* Make sure that no-one re-orders cop.h and breaks our | |
2028 | assumptions */ | |
2029 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2030 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2031 | cx->blk_loop.state_u.lazysv.end = right; | |
2032 | SvREFCNT_inc(right); | |
2033 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2034 | /* This will do the upgrade to SVt_PV, and warn if the value |
2035 | is uninitialised. */ | |
10516c54 | 2036 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2037 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2038 | to replace !SvOK() with a pointer to "". */ | |
2039 | if (!SvOK(right)) { | |
2040 | SvREFCNT_dec(right); | |
d01136d6 | 2041 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2042 | } |
3f63a782 | 2043 | } |
89ea2908 | 2044 | } |
d01136d6 | 2045 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2046 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2047 | SvREFCNT_inc(maybe_ary); |
2048 | cx->blk_loop.state_u.ary.ix = | |
2049 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2050 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2051 | -1; | |
ef3e5ea9 | 2052 | } |
89ea2908 | 2053 | } |
d01136d6 BS |
2054 | else { /* iterating over items on the stack */ |
2055 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2056 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2057 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2058 | } |
2059 | else { | |
d01136d6 | 2060 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2061 | } |
4633a7c4 | 2062 | } |
a0d0e21e LW |
2063 | |
2064 | RETURN; | |
2065 | } | |
2066 | ||
2067 | PP(pp_enterloop) | |
2068 | { | |
27da23d5 | 2069 | dVAR; dSP; |
c09156bb | 2070 | register PERL_CONTEXT *cx; |
f54cb97a | 2071 | const I32 gimme = GIMME_V; |
a0d0e21e | 2072 | |
d343c3ef | 2073 | ENTER_with_name("loop1"); |
a0d0e21e | 2074 | SAVETMPS; |
d343c3ef | 2075 | ENTER_with_name("loop2"); |
a0d0e21e | 2076 | |
3b719c58 NC |
2077 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2078 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2079 | |
2080 | RETURN; | |
2081 | } | |
2082 | ||
2083 | PP(pp_leaveloop) | |
2084 | { | |
27da23d5 | 2085 | dVAR; dSP; |
c09156bb | 2086 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2087 | I32 gimme; |
2088 | SV **newsp; | |
2089 | PMOP *newpm; | |
2090 | SV **mark; | |
2091 | ||
2092 | POPBLOCK(cx,newpm); | |
3b719c58 | 2093 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2094 | mark = newsp; |
a8bba7fa | 2095 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2096 | |
a1f49e72 | 2097 | TAINT_NOT; |
54310121 | 2098 | if (gimme == G_VOID) |
6f207bd3 | 2099 | NOOP; |
54310121 | 2100 | else if (gimme == G_SCALAR) { |
2101 | if (mark < SP) | |
2102 | *++newsp = sv_mortalcopy(*SP); | |
2103 | else | |
3280af22 | 2104 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2105 | } |
2106 | else { | |
a1f49e72 | 2107 | while (mark < SP) { |
a0d0e21e | 2108 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2109 | TAINT_NOT; /* Each item is independent */ |
2110 | } | |
a0d0e21e | 2111 | } |
f86702cc | 2112 | SP = newsp; |
2113 | PUTBACK; | |
2114 | ||
a8bba7fa | 2115 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2116 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2117 | |
d343c3ef GG |
2118 | LEAVE_with_name("loop2"); |
2119 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2120 | |
f86702cc | 2121 | return NORMAL; |
a0d0e21e LW |
2122 | } |
2123 | ||
2124 | PP(pp_return) | |
2125 | { | |
27da23d5 | 2126 | dVAR; dSP; dMARK; |
c09156bb | 2127 | register PERL_CONTEXT *cx; |
f86702cc | 2128 | bool popsub2 = FALSE; |
b45de488 | 2129 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2130 | I32 gimme; |
2131 | SV **newsp; | |
2132 | PMOP *newpm; | |
2133 | I32 optype = 0; | |
b6494f15 | 2134 | SV *namesv; |
b0d9ce38 | 2135 | SV *sv; |
b263a1ad | 2136 | OP *retop = NULL; |
a0d0e21e | 2137 | |
0bd48802 AL |
2138 | const I32 cxix = dopoptosub(cxstack_ix); |
2139 | ||
9850bf21 RH |
2140 | if (cxix < 0) { |
2141 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2142 | * sort block, which is a CXt_NULL | |
2143 | * not a CXt_SUB */ | |
2144 | dounwind(0); | |
d7507f74 RH |
2145 | PL_stack_base[1] = *PL_stack_sp; |
2146 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2147 | return 0; |
2148 | } | |
9850bf21 RH |
2149 | else |
2150 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2151 | } |
a0d0e21e LW |
2152 | if (cxix < cxstack_ix) |
2153 | dounwind(cxix); | |
2154 | ||
d7507f74 RH |
2155 | if (CxMULTICALL(&cxstack[cxix])) { |
2156 | gimme = cxstack[cxix].blk_gimme; | |
2157 | if (gimme == G_VOID) | |
2158 | PL_stack_sp = PL_stack_base; | |
2159 | else if (gimme == G_SCALAR) { | |
2160 | PL_stack_base[1] = *PL_stack_sp; | |
2161 | PL_stack_sp = PL_stack_base + 1; | |
2162 | } | |
9850bf21 | 2163 | return 0; |
d7507f74 | 2164 | } |
9850bf21 | 2165 | |
a0d0e21e | 2166 | POPBLOCK(cx,newpm); |
6b35e009 | 2167 | switch (CxTYPE(cx)) { |
a0d0e21e | 2168 | case CXt_SUB: |
f86702cc | 2169 | popsub2 = TRUE; |
f39bc417 | 2170 | retop = cx->blk_sub.retop; |
5dd42e15 | 2171 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2172 | break; |
2173 | case CXt_EVAL: | |
b45de488 GS |
2174 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2175 | clear_errsv = TRUE; | |
a0d0e21e | 2176 | POPEVAL(cx); |
b6494f15 | 2177 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2178 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2179 | if (CxTRYBLOCK(cx)) |
2180 | break; | |
067f92a0 | 2181 | lex_end(); |
748a9306 LW |
2182 | if (optype == OP_REQUIRE && |
2183 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2184 | { | |
54310121 | 2185 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2186 | (void)hv_delete(GvHVn(PL_incgv), |
2187 | SvPVX_const(namesv), SvCUR(namesv), | |
2188 | G_DISCARD); | |
2189 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2190 | } |
a0d0e21e | 2191 | break; |
7766f137 GS |
2192 | case CXt_FORMAT: |
2193 | POPFORMAT(cx); | |
f39bc417 | 2194 | retop = cx->blk_sub.retop; |
7766f137 | 2195 | break; |
a0d0e21e | 2196 | default: |
cea2e8a9 | 2197 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2198 | } |
2199 | ||
a1f49e72 | 2200 | TAINT_NOT; |
a0d0e21e | 2201 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2202 | if (MARK < SP) { |
2203 | if (popsub2) { | |
a8bba7fa | 2204 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2205 | if (SvTEMP(TOPs)) { |
2206 | *++newsp = SvREFCNT_inc(*SP); | |
2207 | FREETMPS; | |
2208 | sv_2mortal(*newsp); | |
959e3673 GS |
2209 | } |
2210 | else { | |
2211 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2212 | FREETMPS; |
959e3673 GS |
2213 | *++newsp = sv_mortalcopy(sv); |
2214 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2215 | } |
959e3673 GS |
2216 | } |
2217 | else | |
a29cdaf0 | 2218 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2219 | } |
2220 | else | |
a29cdaf0 | 2221 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2222 | } |
2223 | else | |
3280af22 | 2224 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2225 | } |
54310121 | 2226 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2227 | while (++MARK <= SP) { |
f86702cc | 2228 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2229 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2230 | TAINT_NOT; /* Each item is independent */ |
2231 | } | |
a0d0e21e | 2232 | } |
3280af22 | 2233 | PL_stack_sp = newsp; |
a0d0e21e | 2234 | |
5dd42e15 | 2235 | LEAVE; |
f86702cc | 2236 | /* Stack values are safe: */ |
2237 | if (popsub2) { | |
5dd42e15 | 2238 | cxstack_ix--; |
b0d9ce38 | 2239 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2240 | } |
b0d9ce38 | 2241 | else |
c445ea15 | 2242 | sv = NULL; |
3280af22 | 2243 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2244 | |
b0d9ce38 | 2245 | LEAVESUB(sv); |
8433848b | 2246 | if (clear_errsv) { |
ab69dbc2 | 2247 | CLEAR_ERRSV(); |
8433848b | 2248 | } |
f39bc417 | 2249 | return retop; |
a0d0e21e LW |
2250 | } |
2251 | ||
2252 | PP(pp_last) | |
2253 | { | |
27da23d5 | 2254 | dVAR; dSP; |
a0d0e21e | 2255 | I32 cxix; |
c09156bb | 2256 | register PERL_CONTEXT *cx; |
f86702cc | 2257 | I32 pop2 = 0; |
a0d0e21e | 2258 | I32 gimme; |
8772537c | 2259 | I32 optype; |
b263a1ad | 2260 | OP *nextop = NULL; |
a0d0e21e LW |
2261 | SV **newsp; |
2262 | PMOP *newpm; | |
a8bba7fa | 2263 | SV **mark; |
c445ea15 | 2264 | SV *sv = NULL; |
9d4ba2ae | 2265 | |
a0d0e21e | 2266 | |
533c011a | 2267 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2268 | cxix = dopoptoloop(cxstack_ix); |
2269 | if (cxix < 0) | |
a651a37d | 2270 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2271 | } |
2272 | else { | |
2273 | cxix = dopoptolabel(cPVOP->op_pv); | |
2274 | if (cxix < 0) | |
cea2e8a9 | 2275 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2276 | } |
2277 | if (cxix < cxstack_ix) | |
2278 | dounwind(cxix); | |
2279 | ||
2280 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2281 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2282 | mark = newsp; |
6b35e009 | 2283 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2284 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2285 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2286 | case CXt_LOOP_FOR: |
2287 | case CXt_LOOP_PLAIN: | |
2288 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2289 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2290 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2291 | break; |
f86702cc | 2292 | case CXt_SUB: |
f86702cc | 2293 | pop2 = CXt_SUB; |
f39bc417 | 2294 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2295 | break; |
f86702cc | 2296 | case CXt_EVAL: |
2297 | POPEVAL(cx); | |
f39bc417 | 2298 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2299 | break; |
7766f137 GS |
2300 | case CXt_FORMAT: |
2301 | POPFORMAT(cx); | |
f39bc417 | 2302 | nextop = cx->blk_sub.retop; |
7766f137 | 2303 | break; |
a0d0e21e | 2304 | default: |
cea2e8a9 | 2305 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2306 | } |
2307 | ||
a1f49e72 | 2308 | TAINT_NOT; |
a0d0e21e | 2309 | if (gimme == G_SCALAR) { |
f86702cc | 2310 | if (MARK < SP) |
2311 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2312 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2313 | else |
3280af22 | 2314 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2315 | } |
54310121 | 2316 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2317 | while (++MARK <= SP) { |
f86702cc | 2318 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2319 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2320 | TAINT_NOT; /* Each item is independent */ |
2321 | } | |
f86702cc | 2322 | } |
2323 | SP = newsp; | |
2324 | PUTBACK; | |
2325 | ||
5dd42e15 DM |
2326 | LEAVE; |
2327 | cxstack_ix--; | |
f86702cc | 2328 | /* Stack values are safe: */ |
2329 | switch (pop2) { | |
c6fdafd0 | 2330 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2331 | case CXt_LOOP_PLAIN: |
d01136d6 | 2332 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2333 | case CXt_LOOP_FOR: |
a8bba7fa | 2334 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2335 | LEAVE; |
f86702cc | 2336 | break; |
2337 | case CXt_SUB: | |
b0d9ce38 | 2338 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2339 | break; |
a0d0e21e | 2340 | } |
3280af22 | 2341 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2342 | |
b0d9ce38 | 2343 | LEAVESUB(sv); |
9d4ba2ae AL |
2344 | PERL_UNUSED_VAR(optype); |
2345 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2346 | return nextop; |
a0d0e21e LW |
2347 | } |
2348 | ||
2349 | PP(pp_next) | |
2350 | { | |
27da23d5 | 2351 | dVAR; |
a0d0e21e | 2352 | I32 cxix; |
c09156bb | 2353 | register PERL_CONTEXT *cx; |
85538317 | 2354 | I32 inner; |
a0d0e21e | 2355 | |
533c011a | 2356 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2357 | cxix = dopoptoloop(cxstack_ix); |
2358 | if (cxix < 0) | |
a651a37d | 2359 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2360 | } |
2361 | else { | |
2362 | cxix = dopoptolabel(cPVOP->op_pv); | |
2363 | if (cxix < 0) | |
cea2e8a9 | 2364 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2365 | } |
2366 | if (cxix < cxstack_ix) | |
2367 | dounwind(cxix); | |
2368 | ||
85538317 GS |
2369 | /* clear off anything above the scope we're re-entering, but |
2370 | * save the rest until after a possible continue block */ | |
2371 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2372 | TOPBLOCK(cx); |
85538317 GS |
2373 | if (PL_scopestack_ix < inner) |
2374 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2375 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2376 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2377 | } |
2378 | ||
2379 | PP(pp_redo) | |
2380 | { | |
27da23d5 | 2381 | dVAR; |
a0d0e21e | 2382 | I32 cxix; |
c09156bb | 2383 | register PERL_CONTEXT *cx; |
a0d0e21e | 2384 | I32 oldsave; |
a034e688 | 2385 | OP* redo_op; |
a0d0e21e | 2386 | |
533c011a | 2387 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2388 | cxix = dopoptoloop(cxstack_ix); |
2389 | if (cxix < 0) | |
a651a37d | 2390 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2391 | } |
2392 | else { | |
2393 | cxix = dopoptolabel(cPVOP->op_pv); | |
2394 | if (cxix < 0) | |
cea2e8a9 | 2395 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2396 | } |
2397 | if (cxix < cxstack_ix) | |
2398 | dounwind(cxix); | |
2399 | ||
022eaa24 | 2400 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2401 | if (redo_op->op_type == OP_ENTER) { |
2402 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2403 | cxstack_ix++; | |
2404 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2405 | redo_op = redo_op->op_next; | |
2406 | } | |
2407 | ||
a0d0e21e | 2408 | TOPBLOCK(cx); |
3280af22 | 2409 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2410 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2411 | FREETMPS; |
3a1b2b9e | 2412 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2413 | return redo_op; |
a0d0e21e LW |
2414 | } |
2415 | ||
0824fdcb | 2416 | STATIC OP * |
bfed75c6 | 2417 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2418 | { |
97aff369 | 2419 | dVAR; |
a0d0e21e | 2420 | OP **ops = opstack; |
bfed75c6 | 2421 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2422 | |
7918f24d NC |
2423 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2424 | ||
fc36a67e | 2425 | if (ops >= oplimit) |
cea2e8a9 | 2426 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2427 | if (o->op_type == OP_LEAVE || |
2428 | o->op_type == OP_SCOPE || | |
2429 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2430 | o->op_type == OP_LEAVESUB || |
11343788 | 2431 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2432 | { |
5dc0d613 | 2433 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2434 | if (ops >= oplimit) |
cea2e8a9 | 2435 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2436 | } |
c4aa4e48 | 2437 | *ops = 0; |
11343788 | 2438 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2439 | OP *kid; |
a0d0e21e | 2440 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2441 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2442 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2443 | const char *kid_label = CopLABEL(kCOP); | |
2444 | if (kid_label && strEQ(kid_label, label)) | |
2445 | return kid; | |
2446 | } | |
a0d0e21e | 2447 | } |
11343788 | 2448 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2449 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2450 | continue; |
ed8d0fe2 SM |
2451 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2452 | if (ops == opstack) | |
2453 | *ops++ = kid; | |
2454 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2455 | ops[-1]->op_type == OP_DBSTATE) | |
2456 | ops[-1] = kid; | |
2457 | else | |
2458 | *ops++ = kid; | |
2459 | } | |
155aba94 | 2460 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2461 | return o; |
a0d0e21e LW |
2462 | } |
2463 | } | |
c4aa4e48 | 2464 | *ops = 0; |
a0d0e21e LW |
2465 | return 0; |
2466 | } | |
2467 | ||
a0d0e21e LW |
2468 | PP(pp_goto) |
2469 | { | |
27da23d5 | 2470 | dVAR; dSP; |
cbbf8932 | 2471 | OP *retop = NULL; |
a0d0e21e | 2472 | I32 ix; |
c09156bb | 2473 | register PERL_CONTEXT *cx; |
fc36a67e | 2474 | #define GOTO_DEPTH 64 |
2475 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2476 | const char *label = NULL; |
bfed75c6 AL |
2477 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2478 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2479 | |
533c011a | 2480 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2481 | SV * const sv = POPs; |
a0d0e21e LW |
2482 | |
2483 | /* This egregious kludge implements goto &subroutine */ | |
2484 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2485 | I32 cxix; | |
c09156bb | 2486 | register PERL_CONTEXT *cx; |
ea726b52 | 2487 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2488 | SV** mark; |
2489 | I32 items = 0; | |
2490 | I32 oldsave; | |
b1464ded | 2491 | bool reified = 0; |
a0d0e21e | 2492 | |
e8f7dd13 | 2493 | retry: |
4aa0a1f7 | 2494 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2495 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2496 | if (gv) { |
7fc63493 | 2497 | GV *autogv; |
e8f7dd13 GS |
2498 | SV *tmpstr; |
2499 | /* autoloaded stub? */ | |
2500 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2501 | goto retry; | |
2502 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2503 | GvNAMELEN(gv), FALSE); | |
2504 | if (autogv && (cv = GvCV(autogv))) | |
2505 | goto retry; | |
2506 | tmpstr = sv_newmortal(); | |
c445ea15 | 2507 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2508 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2509 | } |
cea2e8a9 | 2510 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2511 | } |
2512 | ||
a0d0e21e | 2513 | /* First do some returnish stuff. */ |
b37c2d43 | 2514 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2515 | FREETMPS; |
a0d0e21e LW |
2516 | cxix = dopoptosub(cxstack_ix); |
2517 | if (cxix < 0) | |
cea2e8a9 | 2518 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2519 | if (cxix < cxstack_ix) |
2520 | dounwind(cxix); | |
2521 | TOPBLOCK(cx); | |
2d43a17f | 2522 | SPAGAIN; |
564abe23 | 2523 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2524 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2525 | if (CxREALEVAL(cx)) |
2526 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2527 | else | |
2528 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2529 | } |
9850bf21 RH |
2530 | else if (CxMULTICALL(cx)) |
2531 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2532 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2533 | /* put @_ back onto stack */ |
a0d0e21e | 2534 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2535 | |
93965878 | 2536 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2537 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2538 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2539 | SvREFCNT_dec(GvAV(PL_defgv)); |
2540 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2541 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2542 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2543 | if (AvREAL(av)) { |
b1464ded DM |
2544 | reified = 1; |
2545 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2546 | av = newAV(); |
2547 | av_extend(av, items-1); | |
11ca45c0 | 2548 | AvREIFY_only(av); |
ad64d0ec | 2549 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2550 | } |
a0d0e21e | 2551 | } |
aed2304a | 2552 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2553 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2554 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2555 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2556 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2557 | } |
a45cdc79 DM |
2558 | mark = SP; |
2559 | SP += items; | |
6b35e009 | 2560 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2561 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2562 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2563 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2564 | LEAVE_SCOPE(oldsave); |
2565 | ||
2566 | /* Now do some callish stuff. */ | |
2567 | SAVETMPS; | |
5023d17a | 2568 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2569 | if (CvISXSUB(cv)) { |
b37c2d43 | 2570 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2571 | SV **newsp; |
2572 | I32 gimme; | |
b1464ded DM |
2573 | if (reified) { |
2574 | I32 index; | |
2575 | for (index=0; index<items; index++) | |
2576 | sv_2mortal(SP[-index]); | |
2577 | } | |
1fa4e549 | 2578 | |
b37c2d43 AL |
2579 | /* XS subs don't have a CxSUB, so pop it */ |
2580 | POPBLOCK(cx, PL_curpm); | |
2581 | /* Push a mark for the start of arglist */ | |
2582 | PUSHMARK(mark); | |
2583 | PUTBACK; | |
2584 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2585 | LEAVE; |
5eff7df7 | 2586 | return retop; |
a0d0e21e LW |
2587 | } |
2588 | else { | |
b37c2d43 | 2589 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2590 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2591 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2592 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2593 | cx->cx_type = CXt_SUB; |
b150fb22 | 2594 | } |
a0d0e21e | 2595 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2596 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2597 | |
a0d0e21e LW |
2598 | CvDEPTH(cv)++; |
2599 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2600 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2601 | else { |
2b9dff67 | 2602 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2603 | sub_crush_depth(cv); |
26019298 | 2604 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2605 | } |
fd617465 DM |
2606 | SAVECOMPPAD(); |
2607 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2608 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2609 | { |
502c6561 | 2610 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2611 | |
3280af22 | 2612 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2613 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2614 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2615 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2616 | |
2617 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2618 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2619 | if (AvARRAY(av) != ary) { |
2620 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2621 | AvARRAY(av) = ary; |
a0d0e21e LW |
2622 | } |
2623 | if (items >= AvMAX(av) + 1) { | |
2624 | AvMAX(av) = items - 1; | |
2625 | Renew(ary,items+1,SV*); | |
2626 | AvALLOC(av) = ary; | |
9c6bc640 | 2627 | AvARRAY(av) = ary; |
a0d0e21e LW |
2628 | } |
2629 | } | |
a45cdc79 | 2630 | ++mark; |
a0d0e21e | 2631 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2632 | AvFILLp(av) = items - 1; |
d8b46c1b | 2633 | assert(!AvREAL(av)); |
b1464ded DM |
2634 | if (reified) { |
2635 | /* transfer 'ownership' of refcnts to new @_ */ | |
2636 | AvREAL_on(av); | |
2637 | AvREIFY_off(av); | |
2638 | } | |
a0d0e21e LW |
2639 | while (items--) { |
2640 | if (*mark) | |
2641 | SvTEMP_off(*mark); | |
2642 | mark++; | |
2643 | } | |
2644 | } | |
491527d0 | 2645 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2646 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2647 | if (PERLDB_GOTO) { |
b96d8cd9 | 2648 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2649 | if (gotocv) { |
2650 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2651 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2652 | PL_stack_sp--; |
2653 | } | |
491527d0 | 2654 | } |
1ce6579f | 2655 | } |
a0d0e21e LW |
2656 | RETURNOP(CvSTART(cv)); |
2657 | } | |
2658 | } | |
1614b0e3 | 2659 | else { |
0510663f | 2660 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2661 | if (!(do_dump || *label)) |
cea2e8a9 | 2662 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2663 | } |
a0d0e21e | 2664 | } |
533c011a | 2665 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2666 | if (! do_dump) |
cea2e8a9 | 2667 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2668 | } |
2669 | else | |
2670 | label = cPVOP->op_pv; | |
2671 | ||
f410a211 NC |
2672 | PERL_ASYNC_CHECK(); |
2673 | ||
a0d0e21e | 2674 | if (label && *label) { |
cbbf8932 | 2675 | OP *gotoprobe = NULL; |
3b2447bc | 2676 | bool leaving_eval = FALSE; |
33d34e4c | 2677 | bool in_block = FALSE; |
cbbf8932 | 2678 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2679 | |
2680 | /* find label */ | |
2681 | ||
d4c19fe8 | 2682 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2683 | *enterops = 0; |
2684 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2685 | cx = &cxstack[ix]; | |
6b35e009 | 2686 | switch (CxTYPE(cx)) { |
a0d0e21e | 2687 | case CXt_EVAL: |
3b2447bc | 2688 | leaving_eval = TRUE; |
971ecbe6 | 2689 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2690 | gotoprobe = (last_eval_cx ? |
2691 | last_eval_cx->blk_eval.old_eval_root : | |
2692 | PL_eval_root); | |
2693 | last_eval_cx = cx; | |
9c5794fe RH |
2694 | break; |
2695 | } | |
2696 | /* else fall through */ | |
c6fdafd0 | 2697 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2698 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2699 | case CXt_LOOP_FOR: |
2700 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2701 | case CXt_GIVEN: |
2702 | case CXt_WHEN: | |
a0d0e21e LW |
2703 | gotoprobe = cx->blk_oldcop->op_sibling; |
2704 | break; | |
2705 | case CXt_SUBST: | |
2706 | continue; | |
2707 | case CXt_BLOCK: | |
33d34e4c | 2708 | if (ix) { |
a0d0e21e | 2709 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2710 | in_block = TRUE; |
2711 | } else | |
3280af22 | 2712 | gotoprobe = PL_main_root; |
a0d0e21e | 2713 | break; |
b3933176 | 2714 | case CXt_SUB: |
9850bf21 | 2715 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2716 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2717 | break; | |
2718 | } | |
2719 | /* FALL THROUGH */ | |
7766f137 | 2720 | case CXt_FORMAT: |
0a753a76 | 2721 | case CXt_NULL: |
a651a37d | 2722 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2723 | default: |
2724 | if (ix) | |
cea2e8a9 | 2725 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2726 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2727 | break; |
2728 | } | |
2b597662 GS |
2729 | if (gotoprobe) { |
2730 | retop = dofindlabel(gotoprobe, label, | |
2731 | enterops, enterops + GOTO_DEPTH); | |
2732 | if (retop) | |
2733 | break; | |
2734 | } | |
3280af22 | 2735 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2736 | } |
2737 | if (!retop) | |
cea2e8a9 | 2738 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2739 | |
3b2447bc RH |
2740 | /* if we're leaving an eval, check before we pop any frames |
2741 | that we're not going to punt, otherwise the error | |
2742 | won't be caught */ | |
2743 | ||
2744 | if (leaving_eval && *enterops && enterops[1]) { | |
2745 | I32 i; | |
2746 | for (i = 1; enterops[i]; i++) | |
2747 | if (enterops[i]->op_type == OP_ENTERITER) | |
2748 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2749 | } | |
2750 | ||
b500e03b GG |
2751 | if (*enterops && enterops[1]) { |
2752 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
2753 | if (enterops[i]) | |
2754 | deprecate("\"goto\" to jump into a construct"); | |
2755 | } | |
2756 | ||
a0d0e21e LW |
2757 | /* pop unwanted frames */ |
2758 | ||
2759 | if (ix < cxstack_ix) { | |
2760 | I32 oldsave; | |
2761 | ||
2762 | if (ix < 0) | |
2763 | ix = 0; | |
2764 | dounwind(ix); | |
2765 | TOPBLOCK(cx); | |
3280af22 | 2766 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2767 | LEAVE_SCOPE(oldsave); |
2768 | } | |
2769 | ||
2770 | /* push wanted frames */ | |
2771 | ||
748a9306 | 2772 | if (*enterops && enterops[1]) { |
0bd48802 | 2773 | OP * const oldop = PL_op; |
33d34e4c AE |
2774 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2775 | for (; enterops[ix]; ix++) { | |
533c011a | 2776 | PL_op = enterops[ix]; |
84902520 TB |
2777 | /* Eventually we may want to stack the needed arguments |
2778 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2779 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2780 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 2781 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 2782 | } |
533c011a | 2783 | PL_op = oldop; |
a0d0e21e LW |
2784 | } |
2785 | } | |
2786 | ||
2787 | if (do_dump) { | |
a5f75d66 | 2788 | #ifdef VMS |
6b88bc9c | 2789 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2790 | #endif |
3280af22 NIS |
2791 | PL_restartop = retop; |
2792 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2793 | |
2794 | my_unexec(); | |
2795 | ||
3280af22 NIS |
2796 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2797 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2798 | } |
2799 | ||
2800 | RETURNOP(retop); | |
2801 | } | |
2802 | ||
2803 | PP(pp_exit) | |
2804 | { | |
97aff369 | 2805 | dVAR; |
39644a26 | 2806 | dSP; |
a0d0e21e LW |
2807 | I32 anum; |
2808 | ||
2809 | if (MAXARG < 1) | |
2810 | anum = 0; | |
ff0cee69 | 2811 | else { |
a0d0e21e | 2812 | anum = SvIVx(POPs); |
d98f61e7 GS |
2813 | #ifdef VMS |
2814 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2815 | anum = 0; |
96e176bf | 2816 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2817 | #endif |
2818 | } | |
cc3604b1 | 2819 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2820 | #ifdef PERL_MAD |
2821 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2822 | if (anum || !(PL_minus_c && PL_madskills)) | |
2823 | my_exit(anum); | |
2824 | #else | |
a0d0e21e | 2825 | my_exit(anum); |
81d86705 | 2826 | #endif |
3280af22 | 2827 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2828 | RETURN; |
2829 | } | |
2830 | ||
a0d0e21e LW |
2831 | /* Eval. */ |
2832 | ||
0824fdcb | 2833 | STATIC void |
cea2e8a9 | 2834 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2835 | { |
504618e9 | 2836 | const char *s = SvPVX_const(sv); |
890ce7af | 2837 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2838 | I32 line = 1; |
a0d0e21e | 2839 | |
7918f24d NC |
2840 | PERL_ARGS_ASSERT_SAVE_LINES; |
2841 | ||
a0d0e21e | 2842 | while (s && s < send) { |
f54cb97a | 2843 | const char *t; |
b9f83d2f | 2844 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2845 | |
1d963ff3 | 2846 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2847 | if (t) |
2848 | t++; | |
2849 | else | |
2850 | t = send; | |
2851 | ||
2852 | sv_setpvn(tmpstr, s, t - s); | |
2853 | av_store(array, line++, tmpstr); | |
2854 | s = t; | |
2855 | } | |
2856 | } | |
2857 | ||
22f16304 RU |
2858 | /* |
2859 | =for apidoc docatch | |
2860 | ||
2861 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
2862 | ||
2863 | 0 is used as continue inside eval, | |
2864 | ||
2865 | 3 is used for a die caught by an inner eval - continue inner loop | |
2866 | ||
2867 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
2868 | establish a local jmpenv to handle exception traps. | |
2869 | ||
2870 | =cut | |
2871 | */ | |
0824fdcb | 2872 | STATIC OP * |
cea2e8a9 | 2873 | S_docatch(pTHX_ OP *o) |
1e422769 | 2874 | { |
97aff369 | 2875 | dVAR; |
6224f72b | 2876 | int ret; |
06b5626a | 2877 | OP * const oldop = PL_op; |
db36c5a1 | 2878 | dJMPENV; |
1e422769 | 2879 | |
1e422769 | 2880 | #ifdef DEBUGGING |
54310121 | 2881 | assert(CATCH_GET == TRUE); |
1e422769 | 2882 | #endif |
312caa8e | 2883 | PL_op = o; |
8bffa5f8 | 2884 | |
14dd3ad8 | 2885 | JMPENV_PUSH(ret); |
6224f72b | 2886 | switch (ret) { |
312caa8e | 2887 | case 0: |
abd70938 DM |
2888 | assert(cxstack_ix >= 0); |
2889 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2890 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2891 | redo_body: |
85aaa934 | 2892 | CALLRUNOPS(aTHX); |
312caa8e CS |
2893 | break; |
2894 | case 3: | |
8bffa5f8 | 2895 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
2896 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
2897 | PL_restartjmpenv = NULL; | |
312caa8e CS |
2898 | PL_op = PL_restartop; |
2899 | PL_restartop = 0; | |
2900 | goto redo_body; | |
2901 | } | |
2902 | /* FALL THROUGH */ | |
2903 | default: | |
14dd3ad8 | 2904 | JMPENV_POP; |
533c011a | 2905 | PL_op = oldop; |
6224f72b | 2906 | JMPENV_JUMP(ret); |
1e422769 | 2907 | /* NOTREACHED */ |
1e422769 | 2908 | } |
14dd3ad8 | 2909 | JMPENV_POP; |
533c011a | 2910 | PL_op = oldop; |
5f66b61c | 2911 | return NULL; |
1e422769 | 2912 | } |
2913 | ||
ee23ad3b NC |
2914 | /* James Bond: Do you expect me to talk? |
2915 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
2916 | ||
2917 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
2918 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
2919 | ||
2920 | Currently it is not used outside the core code. Best if it stays that way. | |
2921 | */ | |
c277df42 | 2922 | OP * |
bfed75c6 | 2923 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2924 | /* sv Text to convert to OP tree. */ |
2925 | /* startop op_free() this to undo. */ | |
2926 | /* code Short string id of the caller. */ | |
2927 | { | |
27da23d5 | 2928 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2929 | PERL_CONTEXT *cx; |
2930 | SV **newsp; | |
b094c71d | 2931 | I32 gimme = G_VOID; |
c277df42 IZ |
2932 | I32 optype; |
2933 | OP dummy; | |
83ee9e09 GS |
2934 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2935 | char *tmpbuf = tbuf; | |
c277df42 | 2936 | char *safestr; |
a3985cdc | 2937 | int runtime; |
601f1833 | 2938 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2939 | STRLEN len; |
634d6919 | 2940 | bool need_catch; |
c277df42 | 2941 | |
7918f24d NC |
2942 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2943 | ||
d343c3ef | 2944 | ENTER_with_name("eval"); |
5486870f | 2945 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2946 | SAVETMPS; |
2947 | /* switch to eval mode */ | |
2948 | ||
923e4eb5 | 2949 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2950 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2951 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2952 | } |
83ee9e09 | 2953 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2954 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2955 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2956 | code, (unsigned long)++PL_evalseq, | |
2957 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2958 | tmpbuf = SvPVX(sv); | |
fc009855 | 2959 | len = SvCUR(sv); |
83ee9e09 GS |
2960 | } |
2961 | else | |
d9fad198 JH |
2962 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2963 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2964 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2965 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2966 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2967 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2968 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2969 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2970 | (i.e. before run-time proper). To work around the coredump that | |
2971 | ensues, we always turn GvMULTI_on for any globals that were | |
2972 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2973 | safestr = savepvn(tmpbuf, len); |
2974 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2975 | SAVEHINTS(); |
d1ca3daa | 2976 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2977 | PL_opsave = op; |
d1ca3daa | 2978 | #else |
7766f137 | 2979 | SAVEVPTR(PL_op); |
d1ca3daa | 2980 | #endif |
c277df42 | 2981 | |
a3985cdc | 2982 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2983 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2984 | if (runtime) |
d819b83a | 2985 | runcv = find_runcv(NULL); |
a3985cdc | 2986 | |
533c011a | 2987 | PL_op = &dummy; |
13b51b79 | 2988 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2989 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2990 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 2991 | PUSHEVAL(cx, 0); |
634d6919 GG |
2992 | need_catch = CATCH_GET; |
2993 | CATCH_SET(TRUE); | |
a3985cdc DM |
2994 | |
2995 | if (runtime) | |
410be5db | 2996 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 2997 | else |
410be5db | 2998 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 2999 | CATCH_SET(need_catch); |
13b51b79 | 3000 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 3001 | POPEVAL(cx); |
c277df42 IZ |
3002 | |
3003 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 3004 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 3005 | lex_end(); |
f3548bdc | 3006 | /* XXX DAPM do this properly one year */ |
502c6561 | 3007 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 3008 | LEAVE_with_name("eval"); |
923e4eb5 | 3009 | if (IN_PERL_COMPILETIME) |
623e6609 | 3010 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 3011 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3012 | op = PL_opsave; |
d1ca3daa | 3013 | #endif |
9d4ba2ae AL |
3014 | PERL_UNUSED_VAR(newsp); |
3015 | PERL_UNUSED_VAR(optype); | |
3016 | ||
410be5db | 3017 | return PL_eval_start; |
c277df42 IZ |
3018 | } |
3019 | ||
a3985cdc DM |
3020 | |
3021 | /* | |
3022 | =for apidoc find_runcv | |
3023 | ||
3024 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3025 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3026 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3027 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3028 | than in the scope of the debugger itself). |
a3985cdc DM |
3029 | |
3030 | =cut | |
3031 | */ | |
3032 | ||
3033 | CV* | |
d819b83a | 3034 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3035 | { |
97aff369 | 3036 | dVAR; |
a3985cdc | 3037 | PERL_SI *si; |
a3985cdc | 3038 | |
d819b83a DM |
3039 | if (db_seqp) |
3040 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3041 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3042 | I32 ix; |
a3985cdc | 3043 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3044 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3045 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3046 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3047 | /* skip DB:: code */ |
3048 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3049 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3050 | continue; | |
3051 | } | |
3052 | return cv; | |
3053 | } | |
a3985cdc DM |
3054 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3055 | return PL_compcv; | |
3056 | } | |
3057 | } | |
3058 | return PL_main_cv; | |
3059 | } | |
3060 | ||
3061 | ||
27e90453 DM |
3062 | /* Run yyparse() in a setjmp wrapper. Returns: |
3063 | * 0: yyparse() successful | |
3064 | * 1: yyparse() failed | |
3065 | * 3: yyparse() died | |
3066 | */ | |
3067 | STATIC int | |
28ac2b49 | 3068 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3069 | { |
3070 | int ret; | |
3071 | dJMPENV; | |
3072 | ||
3073 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3074 | JMPENV_PUSH(ret); | |
3075 | switch (ret) { | |
3076 | case 0: | |
28ac2b49 | 3077 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3078 | break; |
3079 | case 3: | |
3080 | break; | |
3081 | default: | |
3082 | JMPENV_POP; | |
3083 | JMPENV_JUMP(ret); | |
3084 | /* NOTREACHED */ | |
3085 | } | |
3086 | JMPENV_POP; | |
3087 | return ret; | |
3088 | } | |
3089 | ||
3090 | ||
a3985cdc DM |
3091 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3092 | * In the last case, startop is non-null, and contains the address of | |
3093 | * a pointer that should be set to the just-compiled code. | |
3094 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3095 | * Returns a bool indicating whether the compile was successful; if so, |
3096 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3097 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3098 | */ |
3099 | ||
410be5db | 3100 | STATIC bool |
a3985cdc | 3101 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3102 | { |
27da23d5 | 3103 | dVAR; dSP; |
46c461b5 | 3104 | OP * const saveop = PL_op; |
27e90453 DM |
3105 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3106 | int yystatus; | |
a0d0e21e | 3107 | |
27e90453 | 3108 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3109 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3110 | : EVAL_INEVAL); | |
a0d0e21e | 3111 | |
1ce6579f | 3112 | PUSHMARK(SP); |
3113 | ||
3280af22 | 3114 | SAVESPTR(PL_compcv); |
ea726b52 | 3115 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3116 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3117 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3118 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3119 | ||
a3985cdc | 3120 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3121 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3122 | |
dd2155a4 | 3123 | /* set up a scratch pad */ |
a0d0e21e | 3124 | |
dd2155a4 | 3125 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3126 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3127 | |
07055b4c | 3128 | |
81d86705 NC |
3129 | if (!PL_madskills) |
3130 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3131 | |
a0d0e21e LW |
3132 | /* make sure we compile in the right package */ |
3133 | ||
ed094faf | 3134 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3135 | SAVESPTR(PL_curstash); |
ed094faf | 3136 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3137 | } |
3c10abe3 | 3138 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3139 | SAVESPTR(PL_beginav); |
3140 | PL_beginav = newAV(); | |
3141 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3142 | SAVESPTR(PL_unitcheckav); |
3143 | PL_unitcheckav = newAV(); | |
3144 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3145 | |
81d86705 | 3146 | #ifdef PERL_MAD |
9da243ce | 3147 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3148 | PL_madskills = 0; |
3149 | #endif | |
3150 | ||
a0d0e21e LW |
3151 | /* try to compile it */ |
3152 | ||
5f66b61c | 3153 | PL_eval_root = NULL; |
3280af22 | 3154 | PL_curcop = &PL_compiling; |
fc15ae8f | 3155 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3156 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3157 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3158 | else |
3159 | CLEAR_ERRSV(); | |
27e90453 | 3160 | |
52db365a BM |
3161 | CALL_BLOCK_HOOKS(eval, saveop); |
3162 | ||
27e90453 DM |
3163 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3164 | * so honour CATCH_GET and trap it here if necessary */ | |
3165 | ||
28ac2b49 | 3166 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3167 | |
3168 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3169 | SV **newsp; /* Used by POPBLOCK. */ |
b6494f15 | 3170 | PERL_CONTEXT *cx = NULL; |
27e90453 | 3171 | I32 optype; /* Used by POPEVAL. */ |
b6494f15 | 3172 | SV *namesv = NULL; |
9d4ba2ae | 3173 | const char *msg; |
bfed75c6 | 3174 | |
27e90453 DM |
3175 | PERL_UNUSED_VAR(newsp); |
3176 | PERL_UNUSED_VAR(optype); | |
3177 | ||
c86ffc32 DM |
3178 | /* note that if yystatus == 3, then the EVAL CX block has already |
3179 | * been popped, and various vars restored */ | |
533c011a | 3180 | PL_op = saveop; |
27e90453 | 3181 | if (yystatus != 3) { |
c86ffc32 DM |
3182 | if (PL_eval_root) { |
3183 | op_free(PL_eval_root); | |
3184 | PL_eval_root = NULL; | |
3185 | } | |
27e90453 DM |
3186 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3187 | if (!startop) { | |
3188 | POPBLOCK(cx,PL_curpm); | |
3189 | POPEVAL(cx); | |
b6494f15 | 3190 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3191 | } |
c277df42 | 3192 | } |
a0d0e21e | 3193 | lex_end(); |
27e90453 DM |
3194 | if (yystatus != 3) |
3195 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3196 | |
3197 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3198 | if (in_require) { |
b6494f15 VP |
3199 | if (!cx) { |
3200 | /* If cx is still NULL, it means that we didn't go in the | |
3201 | * POPEVAL branch. */ | |
3202 | cx = &cxstack[cxstack_ix]; | |
3203 | assert(CxTYPE(cx) == CXt_EVAL); | |
3204 | namesv = cx->blk_eval.old_namesv; | |
3205 | } | |
3206 | (void)hv_store(GvHVn(PL_incgv), | |
3207 | SvPVX_const(namesv), SvCUR(namesv), | |
3208 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3209 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3210 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3211 | } |
3212 | else if (startop) { | |
27e90453 DM |
3213 | if (yystatus != 3) { |
3214 | POPBLOCK(cx,PL_curpm); | |
3215 | POPEVAL(cx); | |
3216 | } | |
5a844595 GS |
3217 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3218 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3219 | } |
9d7f88dd | 3220 | else { |
9d7f88dd | 3221 | if (!*msg) { |
6502358f | 3222 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3223 | } |
3224 | } | |
410be5db DM |
3225 | PUSHs(&PL_sv_undef); |
3226 | PUTBACK; | |
3227 | return FALSE; | |
a0d0e21e | 3228 | } |
57843af0 | 3229 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3230 | if (startop) { |
3280af22 | 3231 | *startop = PL_eval_root; |
c277df42 | 3232 | } else |
3280af22 | 3233 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3234 | |
3235 | /* Set the context for this new optree. | |
021f53de GG |
3236 | * Propagate the context from the eval(). */ |
3237 | if ((gimme & G_WANT) == G_VOID) | |
3280af22 | 3238 | scalarvoid(PL_eval_root); |
7df0357e | 3239 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3240 | list(PL_eval_root); |
a0d0e21e | 3241 | else |
3280af22 | 3242 | scalar(PL_eval_root); |
a0d0e21e LW |
3243 | |
3244 | DEBUG_x(dump_eval()); | |
3245 | ||
55497cff | 3246 | /* Register with debugger: */ |
6482a30d | 3247 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3248 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3249 | if (cv) { |
3250 | dSP; | |
924508f0 | 3251 | PUSHMARK(SP); |
ad64d0ec | 3252 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3253 | PUTBACK; |
ad64d0ec | 3254 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3255 | } |
3256 | } | |
3257 | ||
8ed49485 FC |
3258 | if (PL_unitcheckav) { |
3259 | OP *es = PL_eval_start; | |
3c10abe3 | 3260 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3261 | PL_eval_start = es; |
3262 | } | |
3c10abe3 | 3263 | |
a0d0e21e LW |
3264 | /* compiled okay, so do it */ |
3265 | ||
3280af22 NIS |
3266 | CvDEPTH(PL_compcv) = 1; |
3267 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3268 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3269 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3270 | |
410be5db DM |
3271 | PUTBACK; |
3272 | return TRUE; | |
a0d0e21e LW |
3273 | } |
3274 | ||
a6c40364 | 3275 | STATIC PerlIO * |
0786552a | 3276 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3277 | { |
3278 | Stat_t st; | |
c445ea15 | 3279 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3280 | |
7918f24d NC |
3281 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3282 | ||
6b845e56 | 3283 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3284 | return NULL; |
ce8abf5f SP |
3285 | } |
3286 | ||
0786552a | 3287 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3288 | } |
3289 | ||
75c20bac | 3290 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3291 | STATIC PerlIO * |
0786552a | 3292 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3293 | { |
b295d113 TH |
3294 | PerlIO *fp; |
3295 | ||
7918f24d NC |
3296 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3297 | ||
ce9440c8 | 3298 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3299 | SV *const pmcsv = newSV(namelen + 2); |
3300 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3301 | Stat_t pmcstat; |
50b8ed39 NC |
3302 | |
3303 | memcpy(pmc, name, namelen); | |
3304 | pmc[namelen] = 'c'; | |
3305 | pmc[namelen + 1] = '\0'; | |
3306 | ||
a6c40364 | 3307 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3308 | fp = check_type_and_open(name); |
a6c40364 GS |
3309 | } |
3310 | else { | |
0786552a | 3311 | fp = check_type_and_open(pmc); |
b295d113 | 3312 | } |
a6c40364 GS |
3313 | SvREFCNT_dec(pmcsv); |
3314 | } | |
3315 | else { | |
0786552a | 3316 | fp = check_type_and_open(name); |
b295d113 | 3317 | } |
b295d113 | 3318 | return fp; |
75c20bac | 3319 | } |
7925835c | 3320 | #else |
75c20bac | 3321 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3322 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3323 | |
a0d0e21e LW |
3324 | PP(pp_require) |
3325 | { | |
27da23d5 | 3326 | dVAR; dSP; |
c09156bb | 3327 | register PERL_CONTEXT *cx; |
a0d0e21e | 3328 | SV *sv; |
5c144d81 | 3329 | const char *name; |
6132ea6c | 3330 | STRLEN len; |
4492be7a JM |
3331 | char * unixname; |
3332 | STRLEN unixlen; | |
62f5ad7a | 3333 | #ifdef VMS |
4492be7a | 3334 | int vms_unixname = 0; |
62f5ad7a | 3335 | #endif |
c445ea15 AL |
3336 | const char *tryname = NULL; |
3337 | SV *namesv = NULL; | |
f54cb97a | 3338 | const I32 gimme = GIMME_V; |
bbed91b5 | 3339 | int filter_has_file = 0; |
c445ea15 | 3340 | PerlIO *tryrsfp = NULL; |
34113e50 | 3341 | SV *filter_cache = NULL; |
c445ea15 AL |
3342 | SV *filter_state = NULL; |
3343 | SV *filter_sub = NULL; | |
3344 | SV *hook_sv = NULL; | |
6ec9efec JH |
3345 | SV *encoding; |
3346 | OP *op; | |
a0d0e21e LW |
3347 | |
3348 | sv = POPs; | |
d7aa5382 | 3349 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3350 | sv = new_version(sv); |
3351 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3352 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3353 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3354 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3355 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3356 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3357 | } |
3358 | else { | |
d1029faa JP |
3359 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3360 | I32 first = 0; | |
3361 | AV *lav; | |
3362 | SV * const req = SvRV(sv); | |
85fbaab2 | 3363 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3364 | |
3365 | /* get the left hand term */ | |
502c6561 | 3366 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3367 | |
3368 | first = SvIV(*av_fetch(lav,0,0)); | |
3369 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3370 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3371 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3372 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3373 | ) { | |
3374 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3375 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3376 | SVfARG(vnormal(PL_patchlevel))); | |
3377 | } | |
3378 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3379 | SV *hintsv; |
d1029faa JP |
3380 | I32 second = 0; |
3381 | ||
3382 | if (av_len(lav)>=1) | |
3383 | second = SvIV(*av_fetch(lav,1,0)); | |
3384 | ||
3385 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3386 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3387 | (int)first, (int)second); | |
d1029faa JP |
3388 | upg_version(hintsv, TRUE); |
3389 | ||
3390 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3391 | "--this is only %"SVf", stopped", | |
3392 | SVfARG(vnormal(req)), | |
af61dbfd | 3393 | SVfARG(vnormal(sv_2mortal(hintsv))), |
d1029faa JP |
3394 | SVfARG(vnormal(PL_patchlevel))); |
3395 | } | |
3396 | } | |
468aa647 | 3397 | } |
d7aa5382 | 3398 | |
faee19b5 | 3399 | /* We do this only with "use", not "require" or "no". */ |
da8fb5d8 DG |
3400 | if (PL_compcv && !(cUNOP->op_first->op_private & OPpCONST_NOVER)) { |
3401 | /* If we request a version >= 5.9.5, load feature.pm with the | |
3402 | * feature bundle that corresponds to the required version. */ | |
3403 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { | |
3404 | SV *const importsv = vnormal(sv); | |
3405 | *SvPVX_mutable(importsv) = ':'; | |
3406 | ENTER_with_name("load_feature"); | |
3407 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); | |
3408 | LEAVE_with_name("load_feature"); | |
3409 | } | |
3410 | /* If a version >= 5.11.0 is requested, strictures are on by default! */ | |
3411 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.011000), FALSE))) >= 0) { | |
3412 | PL_hints |= (HINT_STRICT_REFS | HINT_STRICT_SUBS | HINT_STRICT_VARS); | |
3413 | } | |
53eb19dd S |
3414 | } |
3415 | ||
7dfde25d | 3416 | RETPUSHYES; |
a0d0e21e | 3417 | } |
5c144d81 | 3418 | name = SvPV_const(sv, len); |
6132ea6c | 3419 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3420 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3421 | TAINT_PROPER("require"); |
4492be7a JM |
3422 | |
3423 | ||
3424 | #ifdef VMS | |
3425 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3426 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3427 | * can result in a module being pulled in more than once. | |
3428 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3429 | * name can be translated to UNIX. | |
3430 | */ | |
3431 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3432 | unixlen = strlen(unixname); | |
3433 | vms_unixname = 1; | |
3434 | } | |
3435 | else | |
3436 | #endif | |
3437 | { | |
3438 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3439 | * through. | |
3440 | */ | |
3441 | unixname = (char *) name; | |
3442 | unixlen = len; | |
3443 | } | |
44f8325f | 3444 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3445 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3446 | unixname, unixlen, 0); | |
44f8325f AL |
3447 | if ( svp ) { |
3448 | if (*svp != &PL_sv_undef) | |
3449 | RETPUSHYES; | |
3450 | else | |
087b5369 RD |
3451 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3452 | "Compilation failed in require", unixname); | |
44f8325f | 3453 | } |
4d8b06f1 | 3454 | } |
a0d0e21e LW |
3455 | |
3456 | /* prepare to compile file */ | |
3457 | ||
be4b629d | 3458 | if (path_is_absolute(name)) { |
46fc3d4c | 3459 | tryname = name; |
0786552a | 3460 | tryrsfp = doopen_pm(name, len); |
bf4acbe4 | 3461 | } |
be4b629d | 3462 | if (!tryrsfp) { |
44f8325f | 3463 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3464 | I32 i; |
748a9306 | 3465 | #ifdef VMS |
4492be7a | 3466 | if (vms_unixname) |
46fc3d4c | 3467 | #endif |
3468 | { | |
d0328fd7 | 3469 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3470 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3471 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3472 | |
ad64d0ec | 3473 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3474 | mg_get(dirsv); |
bbed91b5 KF |
3475 | if (SvROK(dirsv)) { |
3476 | int count; | |
a3b58a99 | 3477 | SV **svp; |
bbed91b5 KF |
3478 | SV *loader = dirsv; |
3479 | ||
e14e2dc8 NC |
3480 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3481 | && !sv_isobject(loader)) | |
3482 | { | |
502c6561 | 3483 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3484 | } |
3485 | ||
b900a521 | 3486 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3487 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3488 | tryname = SvPVX_const(namesv); |
c445ea15 | 3489 | tryrsfp = NULL; |
bbed91b5 | 3490 | |
d343c3ef | 3491 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3492 | SAVETMPS; |
3493 | EXTEND(SP, 2); | |
3494 | ||
3495 | PUSHMARK(SP); | |
3496 | PUSHs(dirsv); | |
3497 | PUSHs(sv); | |
3498 | PUTBACK; | |
e982885c NC |
3499 | if (sv_isobject(loader)) |
3500 | count = call_method("INC", G_ARRAY); | |
3501 | else | |
3502 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3503 | SPAGAIN; |
3504 | ||
3505 | if (count > 0) { | |
3506 | int i = 0; | |
3507 | SV *arg; | |
3508 | ||
3509 | SP -= count - 1; | |
3510 | arg = SP[i++]; | |
3511 | ||
34113e50 NC |
3512 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3513 | && !isGV_with_GP(SvRV(arg))) { | |
3514 | filter_cache = SvRV(arg); | |
74c765eb | 3515 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3516 | |
3517 | if (i < count) { | |
3518 | arg = SP[i++]; | |
3519 | } | |
3520 | } | |
3521 | ||
6e592b3a | 3522 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3523 | arg = SvRV(arg); |
3524 | } | |
3525 | ||
6e592b3a | 3526 | if (isGV_with_GP(arg)) { |
159b6efe | 3527 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3528 | |
3529 | ++filter_has_file; | |
3530 | ||
3531 | if (io) { | |
3532 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3533 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3534 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3535 | } |
0f7de14d NC |
3536 | IoIFP(io) = NULL; |
3537 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3538 | } |
3539 | ||
3540 | if (i < count) { | |
3541 | arg = SP[i++]; | |
3542 | } | |
3543 | } | |
3544 | ||
3545 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3546 | filter_sub = arg; | |
74c765eb | 3547 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3548 | |
3549 | if (i < count) { | |
3550 | filter_state = SP[i]; | |
b37c2d43 | 3551 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3552 | } |
34113e50 | 3553 | } |
bbed91b5 | 3554 | |
34113e50 NC |
3555 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3556 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3557 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3558 | } |
1d06aecd | 3559 | SP--; |
bbed91b5 KF |
3560 | } |
3561 | ||
3562 | PUTBACK; | |
3563 | FREETMPS; | |
d343c3ef | 3564 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3565 | |
c5f55552 NC |
3566 | /* Adjust file name if the hook has set an %INC entry. |
3567 | This needs to happen after the FREETMPS above. */ | |
3568 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3569 | if (svp) | |
3570 | tryname = SvPV_nolen_const(*svp); | |
3571 | ||
bbed91b5 | 3572 | if (tryrsfp) { |
89ccab8c | 3573 | hook_sv = dirsv; |
bbed91b5 KF |
3574 | break; |
3575 | } | |
3576 | ||
3577 | filter_has_file = 0; | |
34113e50 NC |
3578 | if (filter_cache) { |
3579 | SvREFCNT_dec(filter_cache); | |
3580 | filter_cache = NULL; | |
3581 | } | |
bbed91b5 KF |
3582 | if (filter_state) { |
3583 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3584 | filter_state = NULL; |
bbed91b5 KF |
3585 | } |
3586 | if (filter_sub) { | |
3587 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3588 | filter_sub = NULL; |
bbed91b5 KF |
3589 | } |
3590 | } | |
3591 | else { | |
be4b629d | 3592 | if (!path_is_absolute(name) |
be4b629d | 3593 | ) { |
b640a14a NC |
3594 | const char *dir; |
3595 | STRLEN dirlen; | |
3596 | ||
3597 | if (SvOK(dirsv)) { | |
3598 | dir = SvPV_const(dirsv, dirlen); | |
3599 | } else { | |
3600 | dir = ""; | |
3601 | dirlen = 0; | |
3602 | } | |
3603 | ||
e37778c2 | 3604 | #ifdef VMS |
bbed91b5 | 3605 | char *unixdir; |
c445ea15 | 3606 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3607 | continue; |
3608 | sv_setpv(namesv, unixdir); | |
3609 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3610 | #else |
3611 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3612 | if (PL_origfilename[0] && |
3613 | PL_origfilename[1] == ':' && | |
3614 | !(dir[0] && dir[1] == ':')) | |
3615 | Perl_sv_setpvf(aTHX_ namesv, | |
3616 | "%c:%s\\%s", | |
3617 | PL_origfilename[0], | |
3618 | dir, name); | |
3619 | else | |
3620 | Perl_sv_setpvf(aTHX_ namesv, | |
3621 | "%s\\%s", | |
3622 | dir, name); | |
e37778c2 | 3623 | # else |
b640a14a NC |
3624 | /* The equivalent of |
3625 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3626 | but without the need to parse the format string, or | |
3627 | call strlen on either pointer, and with the correct | |
3628 | allocation up front. */ | |
3629 | { | |
3630 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3631 | ||
3632 | memcpy(tmp, dir, dirlen); | |
3633 | tmp +=dirlen; | |
3634 | *tmp++ = '/'; | |
3635 | /* name came from an SV, so it will have a '\0' at the | |
3636 | end that we can copy as part of this memcpy(). */ | |
3637 | memcpy(tmp, name, len + 1); | |
3638 | ||
3639 | SvCUR_set(namesv, dirlen + len + 1); | |
3640 | ||
3641 | /* Don't even actually have to turn SvPOK_on() as we | |
3642 | access it directly with SvPVX() below. */ | |
3643 | } | |
27da23d5 | 3644 | # endif |
bf4acbe4 | 3645 | #endif |
bbed91b5 | 3646 | TAINT_PROPER("require"); |
349d4f2f | 3647 | tryname = SvPVX_const(namesv); |
0786552a | 3648 | tryrsfp = doopen_pm(tryname, SvCUR(namesv)); |
bbed91b5 | 3649 | if (tryrsfp) { |
e63be746 RGS |
3650 | if (tryname[0] == '.' && tryname[1] == '/') { |
3651 | ++tryname; | |
3652 | while (*++tryname == '/'); | |
3653 | } | |
bbed91b5 KF |
3654 | break; |
3655 | } | |
ff806af2 DM |
3656 | else if (errno == EMFILE) |
3657 | /* no point in trying other paths if out of handles */ | |
3658 | break; | |
be4b629d | 3659 | } |
46fc3d4c | 3660 | } |
a0d0e21e LW |
3661 | } |
3662 | } | |
3663 | } | |
ec72681b NC |
3664 | if (tryrsfp) { |
3665 | SAVECOPFILE_FREE(&PL_compiling); | |
3666 | CopFILE_set(&PL_compiling, tryname); | |
3667 | } | |
46fc3d4c | 3668 | SvREFCNT_dec(namesv); |
a0d0e21e | 3669 | if (!tryrsfp) { |
533c011a | 3670 | if (PL_op->op_type == OP_REQUIRE) { |
e31de809 | 3671 | if(errno == EMFILE) { |
c9d5e35e NC |
3672 | /* diag_listed_as: Can't locate %s */ |
3673 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(errno)); | |
e31de809 SP |
3674 | } else { |
3675 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3676 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3677 | I32 i; |
c9d5e35e NC |
3678 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
3679 | for (i = 0; i <= AvFILL(ar); i++) { | |
3680 | sv_catpvs(inc, " "); | |
3681 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
3682 | } | |
3683 | ||
3684 | /* diag_listed_as: Can't locate %s */ | |
3685 | DIE(aTHX_ | |
3686 | "Can't locate %s in @INC%s%s (@INC contains:%" SVf ")", | |
3687 | name, | |
686c4ca0 NC |
3688 | (memEQ(name + len - 2, ".h", 3) |
3689 | ? " (change .h to .ph maybe?) (did you run h2ph?)" : ""), | |
3690 | (memEQ(name + len - 3, ".ph", 4) | |
c9d5e35e NC |
3691 | ? " (did you run h2ph?)" : ""), |
3692 | inc | |
3693 | ); | |
3694 | } | |
2683423c | 3695 | } |
c9d5e35e | 3696 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
3697 | } |
3698 | ||
3699 | RETPUSHUNDEF; | |
3700 | } | |
d8bfb8bd | 3701 | else |
93189314 | 3702 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3703 | |
3704 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3705 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3706 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3707 | if (!hook_sv) { |
4492be7a JM |
3708 | (void)hv_store(GvHVn(PL_incgv), |
3709 | unixname, unixlen, newSVpv(CopFILE(&PL_compiling),0),0); | |
44f8325f | 3710 | } else { |
4492be7a | 3711 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3712 | if (!svp) |
4492be7a JM |
3713 | (void)hv_store(GvHVn(PL_incgv), |
3714 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3715 | } |
a0d0e21e | 3716 | |
d343c3ef | 3717 | ENTER_with_name("eval"); |
a0d0e21e | 3718 | SAVETMPS; |
5486870f | 3719 | lex_start(NULL, tryrsfp, TRUE); |
e50aee73 | 3720 | |
b3ac6de7 | 3721 | SAVEHINTS(); |
3280af22 | 3722 | PL_hints = 0; |
f747ebd6 | 3723 | hv_clear(GvHV(PL_hintgv)); |
27eaf14c | 3724 | |
68da3b2f | 3725 | SAVECOMPILEWARNINGS(); |
0453d815 | 3726 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3727 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3728 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3729 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3730 | else |
d3a7d8c7 | 3731 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3732 | |
34113e50 | 3733 | if (filter_sub || filter_cache) { |
4464f08e NC |
3734 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3735 | than hanging another SV from it. In turn, filter_add() optionally | |
3736 | takes the SV to use as the filter (or creates a new SV if passed | |
3737 | NULL), so simply pass in whatever value filter_cache has. */ | |
3738 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3739 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3740 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3741 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
3742 | } |
3743 | ||
3744 | /* switch to eval mode */ | |
a0d0e21e | 3745 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3746 | PUSHEVAL(cx, name); |
f39bc417 | 3747 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3748 | |
57843af0 GS |
3749 | SAVECOPLINE(&PL_compiling); |
3750 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3751 | |
3752 | PUTBACK; | |
6ec9efec JH |
3753 | |
3754 | /* Store and reset encoding. */ | |
3755 | encoding = PL_encoding; | |
c445ea15 | 3756 | PL_encoding = NULL; |
6ec9efec | 3757 | |
410be5db DM |
3758 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3759 | op = DOCATCH(PL_eval_start); | |
3760 | else | |
3761 | op = PL_op->op_next; | |
bfed75c6 | 3762 | |
6ec9efec JH |
3763 | /* Restore encoding. */ |
3764 | PL_encoding = encoding; | |
3765 | ||
3766 | return op; | |
a0d0e21e LW |
3767 | } |
3768 | ||
996c9baa VP |
3769 | /* This is a op added to hold the hints hash for |
3770 | pp_entereval. The hash can be modified by the code | |
3771 | being eval'ed, so we return a copy instead. */ | |
3772 | ||
3773 | PP(pp_hintseval) | |
3774 | { | |
3775 | dVAR; | |
3776 | dSP; | |
defdfed5 | 3777 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
3778 | RETURN; |
3779 | } | |
3780 | ||
3781 | ||
a0d0e21e LW |
3782 | PP(pp_entereval) |
3783 | { | |
27da23d5 | 3784 | dVAR; dSP; |
c09156bb | 3785 | register PERL_CONTEXT *cx; |
0d863452 | 3786 | SV *sv; |
890ce7af | 3787 | const I32 gimme = GIMME_V; |
fd06b02c | 3788 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 GS |
3789 | char tbuf[TYPE_DIGITS(long) + 12]; |
3790 | char *tmpbuf = tbuf; | |
a0d0e21e | 3791 | STRLEN len; |
a3985cdc | 3792 | CV* runcv; |
d819b83a | 3793 | U32 seq; |
c445ea15 | 3794 | HV *saved_hh = NULL; |
e389bba9 | 3795 | |
0d863452 | 3796 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 3797 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
3798 | } |
3799 | sv = POPs; | |
895b760f DM |
3800 | if (!SvPOK(sv)) { |
3801 | /* make sure we've got a plain PV (no overload etc) before testing | |
3802 | * for taint. Making a copy here is probably overkill, but better | |
3803 | * safe than sorry */ | |
0479a84a NC |
3804 | STRLEN len; |
3805 | const char * const p = SvPV_const(sv, len); | |
3806 | ||
3807 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
895b760f | 3808 | } |
a0d0e21e | 3809 | |
af2d3def | 3810 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3811 | TAINT_PROPER("eval"); |
a0d0e21e | 3812 | |
d343c3ef | 3813 | ENTER_with_name("eval"); |
5486870f | 3814 | lex_start(sv, NULL, FALSE); |
748a9306 | 3815 | SAVETMPS; |
ac27b0f5 | 3816 | |
a0d0e21e LW |
3817 | /* switch to eval mode */ |
3818 | ||
83ee9e09 | 3819 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3820 | SV * const temp_sv = sv_newmortal(); |
3821 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3822 | (unsigned long)++PL_evalseq, |
3823 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3824 | tmpbuf = SvPVX(temp_sv); |
3825 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3826 | } |
3827 | else | |
d9fad198 | 3828 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3829 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3830 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3831 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3832 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3833 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3834 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3835 | (i.e. before run-time proper). To work around the coredump that | |
3836 | ensues, we always turn GvMULTI_on for any globals that were | |
3837 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 3838 | SAVEHINTS(); |
533c011a | 3839 | PL_hints = PL_op->op_targ; |
cda55376 AV |
3840 | if (saved_hh) { |
3841 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3842 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
0d863452 | 3843 | GvHV(PL_hintgv) = saved_hh; |
cda55376 | 3844 | } |
68da3b2f | 3845 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3846 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3847 | if (PL_compiling.cop_hints_hash) { |
3848 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3849 | } |
d6747b7a | 3850 | if (Perl_fetch_cop_label(aTHX_ PL_curcop, NULL, NULL)) { |
47550813 NC |
3851 | /* The label, if present, is the first entry on the chain. So rather |
3852 | than writing a blank label in front of it (which involves an | |
3853 | allocation), just use the next entry in the chain. */ | |
3854 | PL_compiling.cop_hints_hash | |
3855 | = PL_curcop->cop_hints_hash->refcounted_he_next; | |
3856 | /* Check the assumption that this removed the label. */ | |
d6747b7a | 3857 | assert(Perl_fetch_cop_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); |
47550813 NC |
3858 | } |
3859 | else | |
3860 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; | |
c28fe1ec | 3861 | if (PL_compiling.cop_hints_hash) { |
cbb1fbea | 3862 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3863 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3864 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3865 | } |
d819b83a DM |
3866 | /* special case: an eval '' executed within the DB package gets lexically |
3867 | * placed in the first non-DB CV rather than the current CV - this | |
3868 | * allows the debugger to execute code, find lexicals etc, in the | |
3869 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3870 | * to do the dirty work for us */ | |
3871 | runcv = find_runcv(&seq); | |
a0d0e21e | 3872 | |
6b35e009 | 3873 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 3874 | PUSHEVAL(cx, 0); |
f39bc417 | 3875 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3876 | |
3877 | /* prepare to compile string */ | |
3878 | ||
a44e3ce2 | 3879 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 3880 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
a0d0e21e | 3881 | PUTBACK; |
f9bddea7 NC |
3882 | |
3883 | if (doeval(gimme, NULL, runcv, seq)) { | |
3884 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
3885 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3886 | : PERLDB_SAVESRC_NOSUBS) { | |
3887 | /* Retain the filegv we created. */ | |
3888 | } else { | |
3889 | char *const safestr = savepvn(tmpbuf, len); | |
3890 | SAVEDELETE(PL_defstash, safestr, len); | |
3891 | } | |
3892 | return DOCATCH(PL_eval_start); | |
3893 | } else { | |
3894 | /* We have already left the scope set up earler thanks to the LEAVE | |
3895 | in doeval(). */ | |
eb044b10 NC |
3896 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
3897 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3898 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 NC |
3899 | /* Retain the filegv we created. */ |
3900 | } else { | |
3901 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); | |
3902 | } | |
3903 | return PL_op->op_next; | |
3904 | } | |
a0d0e21e LW |
3905 | } |
3906 | ||
3907 | PP(pp_leaveeval) | |
3908 | { | |
27da23d5 | 3909 | dVAR; dSP; |
a0d0e21e LW |
3910 | register SV **mark; |
3911 | SV **newsp; | |
3912 | PMOP *newpm; | |
3913 | I32 gimme; | |
c09156bb | 3914 | register PERL_CONTEXT *cx; |
a0d0e21e | 3915 | OP *retop; |
06b5626a | 3916 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 3917 | I32 optype; |
b6494f15 | 3918 | SV *namesv; |
a0d0e21e LW |
3919 | |
3920 | POPBLOCK(cx,newpm); | |
3921 | POPEVAL(cx); | |
b6494f15 | 3922 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 3923 | retop = cx->blk_eval.retop; |
a0d0e21e | 3924 | |
a1f49e72 | 3925 | TAINT_NOT; |
54310121 | 3926 | if (gimme == G_VOID) |
3927 | MARK = newsp; | |
3928 | else if (gimme == G_SCALAR) { | |
3929 | MARK = newsp + 1; | |
3930 | if (MARK <= SP) { | |
3931 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3932 | *MARK = TOPs; | |
3933 | else | |
3934 | *MARK = sv_mortalcopy(TOPs); | |
3935 | } | |
a0d0e21e | 3936 | else { |
54310121 | 3937 | MEXTEND(mark,0); |
3280af22 | 3938 | *MARK = &PL_sv_undef; |
a0d0e21e | 3939 | } |
a7ec2b44 | 3940 | SP = MARK; |
a0d0e21e LW |
3941 | } |
3942 | else { | |
a1f49e72 CS |
3943 | /* in case LEAVE wipes old return values */ |
3944 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3945 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3946 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3947 | TAINT_NOT; /* Each item is independent */ |
3948 | } | |
3949 | } | |
a0d0e21e | 3950 | } |
3280af22 | 3951 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3952 | |
4fdae800 | 3953 | #ifdef DEBUGGING |
3280af22 | 3954 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3955 | #endif |
3280af22 | 3956 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3957 | lex_end(); |
4fdae800 | 3958 | |
1ce6579f | 3959 | if (optype == OP_REQUIRE && |
924508f0 | 3960 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3961 | { |
1ce6579f | 3962 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
3963 | (void)hv_delete(GvHVn(PL_incgv), |
3964 | SvPVX_const(namesv), SvCUR(namesv), | |
3965 | G_DISCARD); | |
3966 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", | |
3967 | SVfARG(namesv)); | |
c5df3096 | 3968 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
3969 | } |
3970 | else { | |
d343c3ef | 3971 | LEAVE_with_name("eval"); |
8433848b | 3972 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 3973 | CLEAR_ERRSV(); |
8433848b | 3974 | } |
a0d0e21e | 3975 | } |
a0d0e21e LW |
3976 | |
3977 | RETURNOP(retop); | |
3978 | } | |
3979 | ||
edb2152a NC |
3980 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3981 | close to the related Perl_create_eval_scope. */ | |
3982 | void | |
3983 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3984 | { |
edb2152a NC |
3985 | SV **newsp; |
3986 | PMOP *newpm; | |
3987 | I32 gimme; | |
c09156bb | 3988 | register PERL_CONTEXT *cx; |
edb2152a NC |
3989 | I32 optype; |
3990 | ||
3991 | POPBLOCK(cx,newpm); | |
3992 | POPEVAL(cx); | |
3993 | PL_curpm = newpm; | |
d343c3ef | 3994 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
3995 | PERL_UNUSED_VAR(newsp); |
3996 | PERL_UNUSED_VAR(gimme); | |
3997 | PERL_UNUSED_VAR(optype); | |
3998 | } | |
a0d0e21e | 3999 | |
edb2152a NC |
4000 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4001 | also needed by Perl_fold_constants. */ | |
4002 | PERL_CONTEXT * | |
4003 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4004 | { | |
4005 | PERL_CONTEXT *cx; | |
4006 | const I32 gimme = GIMME_V; | |
4007 | ||
d343c3ef | 4008 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4009 | SAVETMPS; |
4010 | ||
edb2152a | 4011 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4012 | PUSHEVAL(cx, 0); |
a0d0e21e | 4013 | |
faef0170 | 4014 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4015 | if (flags & G_KEEPERR) |
4016 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4017 | else |
4018 | CLEAR_ERRSV(); | |
edb2152a NC |
4019 | if (flags & G_FAKINGEVAL) { |
4020 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4021 | } | |
4022 | return cx; | |
4023 | } | |
4024 | ||
4025 | PP(pp_entertry) | |
4026 | { | |
4027 | dVAR; | |
df528165 | 4028 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4029 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4030 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4031 | } |
4032 | ||
4033 | PP(pp_leavetry) | |
4034 | { | |
27da23d5 | 4035 | dVAR; dSP; |
a0d0e21e LW |
4036 | SV **newsp; |
4037 | PMOP *newpm; | |
4038 | I32 gimme; | |
c09156bb | 4039 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
4040 | I32 optype; |
4041 | ||
4042 | POPBLOCK(cx,newpm); | |
4043 | POPEVAL(cx); | |
9d4ba2ae | 4044 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4045 | |
a1f49e72 | 4046 | TAINT_NOT; |
54310121 | 4047 | if (gimme == G_VOID) |
4048 | SP = newsp; | |
4049 | else if (gimme == G_SCALAR) { | |
c445ea15 | 4050 | register SV **mark; |
54310121 | 4051 | MARK = newsp + 1; |
4052 | if (MARK <= SP) { | |
4053 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4054 | *MARK = TOPs; | |
4055 | else | |
4056 | *MARK = sv_mortalcopy(TOPs); | |
4057 | } | |
a0d0e21e | 4058 | else { |
54310121 | 4059 | MEXTEND(mark,0); |
3280af22 | 4060 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
4061 | } |
4062 | SP = MARK; | |
4063 | } | |
4064 | else { | |
a1f49e72 | 4065 | /* in case LEAVE wipes old return values */ |
c445ea15 | 4066 | register SV **mark; |
a1f49e72 CS |
4067 | for (mark = newsp + 1; mark <= SP; mark++) { |
4068 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 4069 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
4070 | TAINT_NOT; /* Each item is independent */ |
4071 | } | |
4072 | } | |
a0d0e21e | 4073 | } |
3280af22 | 4074 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4075 | |
d343c3ef | 4076 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4077 | CLEAR_ERRSV(); |
745cf2ff | 4078 | RETURN; |
a0d0e21e LW |
4079 | } |
4080 | ||
0d863452 RH |
4081 | PP(pp_entergiven) |
4082 | { | |
4083 | dVAR; dSP; | |
4084 | register PERL_CONTEXT *cx; | |
4085 | const I32 gimme = GIMME_V; | |
4086 | ||
d343c3ef | 4087 | ENTER_with_name("given"); |
0d863452 RH |
4088 | SAVETMPS; |
4089 | ||
bb74b0ee | 4090 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); |
0d863452 RH |
4091 | |
4092 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4093 | PUSHGIVEN(cx); | |
4094 | ||
4095 | RETURN; | |
4096 | } | |
4097 | ||
4098 | PP(pp_leavegiven) | |
4099 | { | |
4100 | dVAR; dSP; | |
4101 | register PERL_CONTEXT *cx; | |
4102 | I32 gimme; | |
4103 | SV **newsp; | |
4104 | PMOP *newpm; | |
96a5add6 | 4105 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4106 | |
4107 | POPBLOCK(cx,newpm); | |
4108 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4109 | |
25b991bf VP |
4110 | TAINT_NOT; |
4111 | if (gimme == G_VOID) | |
4112 | SP = newsp; | |
4113 | else if (gimme == G_SCALAR) { | |
4114 | register SV **mark; | |
4115 | MARK = newsp + 1; | |
4116 | if (MARK <= SP) { | |
4117 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
4118 | *MARK = TOPs; | |
4119 | else | |
4120 | *MARK = sv_mortalcopy(TOPs); | |
4121 | } | |
4122 | else { | |
4123 | MEXTEND(mark,0); | |
4124 | *MARK = &PL_sv_undef; | |
4125 | } | |
4126 | SP = MARK; | |
4127 | } | |
4128 | else { | |
4129 | /* in case LEAVE wipes old return values */ | |
4130 | register SV **mark; | |
4131 | for (mark = newsp + 1; mark <= SP; mark++) { | |
4132 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
4133 | *mark = sv_mortalcopy(*mark); | |
4134 | TAINT_NOT; /* Each item is independent */ | |
4135 | } | |
4136 | } | |
4137 | } | |
4138 | PL_curpm = newpm; /* Don't pop $1 et al till now */ | |
0d863452 | 4139 | |
d343c3ef | 4140 | LEAVE_with_name("given"); |
25b991bf | 4141 | RETURN; |
0d863452 RH |
4142 | } |
4143 | ||
4144 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4145 | STATIC PMOP * |
84679df5 | 4146 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 4147 | { |
97aff369 | 4148 | dVAR; |
0d863452 | 4149 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4150 | |
4151 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4152 | ||
d6106309 | 4153 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4154 | |
0d863452 | 4155 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4156 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4157 | SAVEOP(); |
4158 | return matcher; | |
4159 | } | |
4160 | ||
4136a0f7 | 4161 | STATIC bool |
0d863452 RH |
4162 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4163 | { | |
97aff369 | 4164 | dVAR; |
0d863452 | 4165 | dSP; |
7918f24d NC |
4166 | |
4167 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4168 | |
4169 | PL_op = (OP *) matcher; | |
4170 | XPUSHs(sv); | |
4171 | PUTBACK; | |
4172 | (void) pp_match(); | |
4173 | SPAGAIN; | |
4174 | return (SvTRUEx(POPs)); | |
4175 | } | |
4176 | ||
4136a0f7 | 4177 | STATIC void |
0d863452 RH |
4178 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4179 | { | |
97aff369 | 4180 | dVAR; |
7918f24d NC |
4181 | |
4182 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4183 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4184 | |
0d863452 | 4185 | FREETMPS; |
d343c3ef | 4186 | LEAVE_with_name("matcher"); |
0d863452 RH |
4187 | } |
4188 | ||
4189 | /* Do a smart match */ | |
4190 | PP(pp_smartmatch) | |
4191 | { | |
d7c0d282 | 4192 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
a0714e2c | 4193 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4194 | } |
4195 | ||
4b021f5f RGS |
4196 | /* This version of do_smartmatch() implements the |
4197 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4198 | */ |
4136a0f7 | 4199 | STATIC OP * |
0d863452 RH |
4200 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4201 | { | |
97aff369 | 4202 | dVAR; |
0d863452 RH |
4203 | dSP; |
4204 | ||
41e726ac | 4205 | bool object_on_left = FALSE; |
0d863452 RH |
4206 | SV *e = TOPs; /* e is for 'expression' */ |
4207 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4208 | |
6f1401dc DM |
4209 | /* Take care only to invoke mg_get() once for each argument. |
4210 | * Currently we do this by copying the SV if it's magical. */ | |
4211 | if (d) { | |
4212 | if (SvGMAGICAL(d)) | |
4213 | d = sv_mortalcopy(d); | |
4214 | } | |
4215 | else | |
4216 | d = &PL_sv_undef; | |
4217 | ||
4218 | assert(e); | |
4219 | if (SvGMAGICAL(e)) | |
4220 | e = sv_mortalcopy(e); | |
4221 | ||
2c9d2554 | 4222 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4223 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4224 | SV * tmpsv; |
4225 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4226 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4227 | ||
4228 | tmpsv = amagic_call(d, e, smart_amg, 0); | |
7c41e62e RGS |
4229 | if (tmpsv) { |
4230 | SPAGAIN; | |
4231 | (void)POPs; | |
4232 | SETs(tmpsv); | |
4233 | RETURN; | |
4234 | } | |
d7c0d282 | 4235 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4236 | } |
62ec5f58 | 4237 | |
0d863452 RH |
4238 | SP -= 2; /* Pop the values */ |
4239 | ||
0d863452 | 4240 | |
b0138e99 | 4241 | /* ~~ undef */ |
62ec5f58 | 4242 | if (!SvOK(e)) { |
d7c0d282 | 4243 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4244 | if (SvOK(d)) |
33570f8b RGS |
4245 | RETPUSHNO; |
4246 | else | |
62ec5f58 | 4247 | RETPUSHYES; |
33570f8b | 4248 | } |
e67b97bd | 4249 | |
d7c0d282 DM |
4250 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4251 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4252 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4253 | } |
41e726ac RGS |
4254 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4255 | object_on_left = TRUE; | |
62ec5f58 | 4256 | |
b0138e99 | 4257 | /* ~~ sub */ |
a4a197da | 4258 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4259 | I32 c; |
41e726ac RGS |
4260 | if (object_on_left) { |
4261 | goto sm_any_sub; /* Treat objects like scalars */ | |
4262 | } | |
4263 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4264 | /* Test sub truth for each key */ |
4265 | HE *he; | |
4266 | bool andedresults = TRUE; | |
4267 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4268 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4269 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4270 | if (numkeys == 0) |
07edf497 | 4271 | RETPUSHYES; |
a4a197da | 4272 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4273 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4274 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4275 | SAVETMPS; |
4276 | PUSHMARK(SP); | |
4277 | PUSHs(hv_iterkeysv(he)); | |
4278 | PUTBACK; | |
4279 | c = call_sv(e, G_SCALAR); | |
4280 | SPAGAIN; | |
4281 | if (c == 0) | |
4282 | andedresults = FALSE; | |
4283 | else | |
4284 | andedresults = SvTRUEx(POPs) && andedresults; | |
4285 | FREETMPS; | |
d343c3ef | 4286 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4287 | } |
4288 | if (andedresults) | |
4289 | RETPUSHYES; | |
4290 | else | |
4291 | RETPUSHNO; | |
4292 | } | |
4293 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4294 | /* Test sub truth for each element */ | |
4295 | I32 i; | |
4296 | bool andedresults = TRUE; | |
4297 | AV *av = (AV*) SvRV(d); | |
4298 | const I32 len = av_len(av); | |
d7c0d282 | 4299 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4300 | if (len == -1) |
07edf497 | 4301 | RETPUSHYES; |
a4a197da RGS |
4302 | for (i = 0; i <= len; ++i) { |
4303 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4304 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4305 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4306 | SAVETMPS; |
4307 | PUSHMARK(SP); | |
4308 | if (svp) | |
4309 | PUSHs(*svp); | |
4310 | PUTBACK; | |
4311 | c = call_sv(e, G_SCALAR); | |
4312 | SPAGAIN; | |
4313 | if (c == 0) | |
4314 | andedresults = FALSE; | |
4315 | else | |
4316 | andedresults = SvTRUEx(POPs) && andedresults; | |
4317 | FREETMPS; | |
d343c3ef | 4318 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4319 | } |
4320 | if (andedresults) | |
4321 | RETPUSHYES; | |
4322 | else | |
4323 | RETPUSHNO; | |
4324 | } | |
4325 | else { | |
41e726ac | 4326 | sm_any_sub: |
d7c0d282 | 4327 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4328 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4329 | SAVETMPS; |
4330 | PUSHMARK(SP); | |
4331 | PUSHs(d); | |
4332 | PUTBACK; | |
4333 | c = call_sv(e, G_SCALAR); | |
4334 | SPAGAIN; | |
4335 | if (c == 0) | |
4336 | PUSHs(&PL_sv_no); | |
4337 | else if (SvTEMP(TOPs)) | |
4338 | SvREFCNT_inc_void(TOPs); | |
4339 | FREETMPS; | |
d343c3ef | 4340 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4341 | RETURN; |
4342 | } | |
0d863452 | 4343 | } |
b0138e99 | 4344 | /* ~~ %hash */ |
61a621c6 | 4345 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4346 | if (object_on_left) { |
4347 | goto sm_any_hash; /* Treat objects like scalars */ | |
4348 | } | |
4349 | else if (!SvOK(d)) { | |
d7c0d282 | 4350 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4351 | RETPUSHNO; |
4352 | } | |
4353 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4354 | /* Check that the key-sets are identical */ |
4355 | HE *he; | |
61a621c6 | 4356 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4357 | bool tied = FALSE; |
4358 | bool other_tied = FALSE; | |
4359 | U32 this_key_count = 0, | |
4360 | other_key_count = 0; | |
33ed63a2 | 4361 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4362 | |
4363 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4364 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4365 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4366 | tied = TRUE; |
4367 | } | |
ad64d0ec | 4368 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4369 | HV * const temp = other_hv; |
33ed63a2 RGS |
4370 | other_hv = hv; |
4371 | hv = temp; | |
0d863452 RH |
4372 | tied = TRUE; |
4373 | } | |
ad64d0ec | 4374 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4375 | other_tied = TRUE; |
4376 | ||
33ed63a2 | 4377 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4378 | RETPUSHNO; |
4379 | ||
4380 | /* The hashes have the same number of keys, so it suffices | |
4381 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4382 | (void) hv_iterinit(hv); |
4383 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4384 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4385 | |
4386 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4387 | ++ this_key_count; |
4388 | ||
b15feb55 | 4389 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4390 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4391 | RETPUSHNO; |
4392 | } | |
4393 | } | |
4394 | ||
4395 | if (other_tied) { | |
4396 | (void) hv_iterinit(other_hv); | |
4397 | while ( hv_iternext(other_hv) ) | |
4398 | ++other_key_count; | |
4399 | } | |
4400 | else | |
4401 | other_key_count = HvUSEDKEYS(other_hv); | |
4402 | ||
4403 | if (this_key_count != other_key_count) | |
4404 | RETPUSHNO; | |
4405 | else | |
4406 | RETPUSHYES; | |
4407 | } | |
61a621c6 RGS |
4408 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4409 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4410 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4411 | I32 i; |
33ed63a2 | 4412 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4413 | |
d7c0d282 | 4414 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4415 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4416 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4417 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4418 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4419 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4420 | RETPUSHYES; |
4421 | } | |
0d863452 | 4422 | } |
71b0fb34 | 4423 | RETPUSHNO; |
0d863452 | 4424 | } |
a566f585 | 4425 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4426 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4427 | sm_regex_hash: |
4428 | { | |
4429 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4430 | HE *he; | |
4431 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4432 | ||
4433 | (void) hv_iterinit(hv); | |
4434 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4435 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4436 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4437 | (void) hv_iterinit(hv); | |
4438 | destroy_matcher(matcher); | |
4439 | RETPUSHYES; | |
4440 | } | |
0d863452 | 4441 | } |
ea0c2dbd RGS |
4442 | destroy_matcher(matcher); |
4443 | RETPUSHNO; | |
0d863452 | 4444 | } |
0d863452 RH |
4445 | } |
4446 | else { | |
41e726ac | 4447 | sm_any_hash: |
d7c0d282 | 4448 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4449 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4450 | RETPUSHYES; |
4451 | else | |
4452 | RETPUSHNO; | |
4453 | } | |
4454 | } | |
b0138e99 RGS |
4455 | /* ~~ @array */ |
4456 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4457 | if (object_on_left) { |
4458 | goto sm_any_array; /* Treat objects like scalars */ | |
4459 | } | |
4460 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4461 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4462 | const I32 other_len = av_len(other_av) + 1; | |
4463 | I32 i; | |
4464 | ||
d7c0d282 | 4465 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4466 | for (i = 0; i < other_len; ++i) { |
4467 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4468 | |
4469 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4470 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4471 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4472 | RETPUSHYES; |
4473 | } | |
4474 | } | |
4475 | RETPUSHNO; | |
4476 | } | |
4477 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4478 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4479 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4480 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4481 | RETPUSHNO; |
4482 | else { | |
4483 | I32 i; | |
c445ea15 | 4484 | const I32 other_len = av_len(other_av); |
0d863452 | 4485 | |
a0714e2c | 4486 | if (NULL == seen_this) { |
0d863452 | 4487 | seen_this = newHV(); |
ad64d0ec | 4488 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4489 | } |
a0714e2c | 4490 | if (NULL == seen_other) { |
6bc991bf | 4491 | seen_other = newHV(); |
ad64d0ec | 4492 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4493 | } |
4494 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4495 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4496 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4497 | ||
0d863452 | 4498 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4499 | if ((this_elem && SvOK(*this_elem)) |
4500 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4501 | RETPUSHNO; |
4502 | } | |
365c4e3d RGS |
4503 | else if (hv_exists_ent(seen_this, |
4504 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4505 | hv_exists_ent(seen_other, | |
4506 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4507 | { |
4508 | if (*this_elem != *other_elem) | |
4509 | RETPUSHNO; | |
4510 | } | |
4511 | else { | |
04fe65b0 RGS |
4512 | (void)hv_store_ent(seen_this, |
4513 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4514 | &PL_sv_undef, 0); | |
4515 | (void)hv_store_ent(seen_other, | |
4516 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4517 | &PL_sv_undef, 0); | |
0d863452 | 4518 | PUSHs(*other_elem); |
a566f585 | 4519 | PUSHs(*this_elem); |
0d863452 RH |
4520 | |
4521 | PUTBACK; | |
d7c0d282 | 4522 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
0d863452 RH |
4523 | (void) do_smartmatch(seen_this, seen_other); |
4524 | SPAGAIN; | |
d7c0d282 | 4525 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4526 | |
4527 | if (!SvTRUEx(POPs)) | |
4528 | RETPUSHNO; | |
4529 | } | |
4530 | } | |
4531 | RETPUSHYES; | |
4532 | } | |
4533 | } | |
a566f585 | 4534 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4535 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4536 | sm_regex_array: |
4537 | { | |
4538 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4539 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4540 | I32 i; | |
0d863452 | 4541 | |
ea0c2dbd RGS |
4542 | for(i = 0; i <= this_len; ++i) { |
4543 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4544 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4545 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4546 | destroy_matcher(matcher); | |
4547 | RETPUSHYES; | |
4548 | } | |
0d863452 | 4549 | } |
ea0c2dbd RGS |
4550 | destroy_matcher(matcher); |
4551 | RETPUSHNO; | |
0d863452 | 4552 | } |
0d863452 | 4553 | } |
015eb7b9 RGS |
4554 | else if (!SvOK(d)) { |
4555 | /* undef ~~ array */ | |
4556 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4557 | I32 i; |
4558 | ||
d7c0d282 | 4559 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4560 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4561 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4562 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4563 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4564 | RETPUSHYES; |
4565 | } | |
4566 | RETPUSHNO; | |
4567 | } | |
015eb7b9 | 4568 | else { |
41e726ac RGS |
4569 | sm_any_array: |
4570 | { | |
4571 | I32 i; | |
4572 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4573 | |
d7c0d282 | 4574 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4575 | for (i = 0; i <= this_len; ++i) { |
4576 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4577 | if (!svp) | |
4578 | continue; | |
015eb7b9 | 4579 | |
41e726ac RGS |
4580 | PUSHs(d); |
4581 | PUSHs(*svp); | |
4582 | PUTBACK; | |
4583 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4584 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
41e726ac RGS |
4585 | (void) do_smartmatch(NULL, NULL); |
4586 | SPAGAIN; | |
d7c0d282 | 4587 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4588 | if (SvTRUEx(POPs)) |
4589 | RETPUSHYES; | |
4590 | } | |
4591 | RETPUSHNO; | |
0d863452 | 4592 | } |
0d863452 RH |
4593 | } |
4594 | } | |
b0138e99 | 4595 | /* ~~ qr// */ |
a566f585 | 4596 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4597 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4598 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4599 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4600 | goto sm_regex_hash; |
4601 | } | |
4602 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4603 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4604 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4605 | goto sm_regex_array; |
4606 | } | |
4607 | else { | |
4608 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4609 | |
d7c0d282 | 4610 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4611 | PUTBACK; |
4612 | PUSHs(matcher_matches_sv(matcher, d) | |
4613 | ? &PL_sv_yes | |
4614 | : &PL_sv_no); | |
4615 | destroy_matcher(matcher); | |
4616 | RETURN; | |
4617 | } | |
0d863452 | 4618 | } |
b0138e99 | 4619 | /* ~~ scalar */ |
2c9d2554 RGS |
4620 | /* See if there is overload magic on left */ |
4621 | else if (object_on_left && SvAMAGIC(d)) { | |
4622 | SV *tmpsv; | |
d7c0d282 DM |
4623 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4624 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4625 | PUSHs(d); PUSHs(e); |
4626 | PUTBACK; | |
4627 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4628 | if (tmpsv) { | |
4629 | SPAGAIN; | |
4630 | (void)POPs; | |
4631 | SETs(tmpsv); | |
4632 | RETURN; | |
4633 | } | |
4634 | SP -= 2; | |
d7c0d282 | 4635 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4636 | goto sm_any_scalar; |
4637 | } | |
fb51372e RGS |
4638 | else if (!SvOK(d)) { |
4639 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4640 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4641 | RETPUSHNO; |
4642 | } | |
2c9d2554 RGS |
4643 | else |
4644 | sm_any_scalar: | |
4645 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4646 | DEBUG_M(if (SvNIOK(e)) |
4647 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4648 | else | |
4649 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4650 | ); | |
33ed63a2 | 4651 | /* numeric comparison */ |
0d863452 RH |
4652 | PUSHs(d); PUSHs(e); |
4653 | PUTBACK; | |
a98fe34d | 4654 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4655 | (void) pp_i_eq(); |
4656 | else | |
4657 | (void) pp_eq(); | |
4658 | SPAGAIN; | |
4659 | if (SvTRUEx(POPs)) | |
4660 | RETPUSHYES; | |
4661 | else | |
4662 | RETPUSHNO; | |
4663 | } | |
4664 | ||
4665 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4666 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4667 | PUSHs(d); PUSHs(e); |
4668 | PUTBACK; | |
4669 | return pp_seq(); | |
4670 | } | |
4671 | ||
4672 | PP(pp_enterwhen) | |
4673 | { | |
4674 | dVAR; dSP; | |
4675 | register PERL_CONTEXT *cx; | |
4676 | const I32 gimme = GIMME_V; | |
4677 | ||
4678 | /* This is essentially an optimization: if the match | |
4679 | fails, we don't want to push a context and then | |
4680 | pop it again right away, so we skip straight | |
4681 | to the op that follows the leavewhen. | |
25b991bf | 4682 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4683 | */ |
4684 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4685 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4686 | |
d343c3ef | 4687 | ENTER_with_name("eval"); |
0d863452 RH |
4688 | SAVETMPS; |
4689 | ||
4690 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4691 | PUSHWHEN(cx); | |
4692 | ||
4693 | RETURN; | |
4694 | } | |
4695 | ||
4696 | PP(pp_leavewhen) | |
4697 | { | |
4698 | dVAR; dSP; | |
4699 | register PERL_CONTEXT *cx; | |
4700 | I32 gimme; | |
4701 | SV **newsp; | |
4702 | PMOP *newpm; | |
4703 | ||
4704 | POPBLOCK(cx,newpm); | |
4705 | assert(CxTYPE(cx) == CXt_WHEN); | |
4706 | ||
4707 | SP = newsp; | |
4708 | PUTBACK; | |
4709 | ||
4710 | PL_curpm = newpm; /* pop $1 et al */ | |
4711 | ||
d343c3ef | 4712 | LEAVE_with_name("eval"); |
0d863452 RH |
4713 | return NORMAL; |
4714 | } | |
4715 | ||
4716 | PP(pp_continue) | |
4717 | { | |
4718 | dVAR; | |
4719 | I32 cxix; | |
4720 | register PERL_CONTEXT *cx; | |
4721 | I32 inner; | |
4722 | ||
4723 | cxix = dopoptowhen(cxstack_ix); | |
4724 | if (cxix < 0) | |
4725 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4726 | if (cxix < cxstack_ix) | |
4727 | dounwind(cxix); | |
4728 | ||
4729 | /* clear off anything above the scope we're re-entering */ | |
4730 | inner = PL_scopestack_ix; | |
4731 | TOPBLOCK(cx); | |
4732 | if (PL_scopestack_ix < inner) | |
4733 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4734 | PL_curcop = cx->blk_oldcop; | |
4735 | return cx->blk_givwhen.leave_op; | |
4736 | } | |
4737 | ||
4738 | PP(pp_break) | |
4739 | { | |
4740 | dVAR; | |
4741 | I32 cxix; | |
4742 | register PERL_CONTEXT *cx; | |
4743 | I32 inner; | |
25b991bf VP |
4744 | dSP; |
4745 | ||
0d863452 RH |
4746 | cxix = dopoptogiven(cxstack_ix); |
4747 | if (cxix < 0) { | |
4748 | if (PL_op->op_flags & OPf_SPECIAL) | |
4749 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4750 | else | |
4751 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4752 | } | |
4753 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4754 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4755 | ||
4756 | if (cxix < cxstack_ix) | |
4757 | dounwind(cxix); | |
4758 | ||
4759 | /* clear off anything above the scope we're re-entering */ | |
4760 | inner = PL_scopestack_ix; | |
4761 | TOPBLOCK(cx); | |
4762 | if (PL_scopestack_ix < inner) | |
4763 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4764 | PL_curcop = cx->blk_oldcop; | |
4765 | ||
4766 | if (CxFOREACH(cx)) | |
d57ce4df | 4767 | return (cx)->blk_loop.my_op->op_nextop; |
0d863452 | 4768 | else |
25b991bf VP |
4769 | /* RETURNOP calls PUTBACK which restores the old old sp */ |
4770 | RETURNOP(cx->blk_givwhen.leave_op); | |
0d863452 RH |
4771 | } |
4772 | ||
a1b95068 | 4773 | STATIC OP * |
cea2e8a9 | 4774 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4775 | { |
4776 | STRLEN len; | |
4777 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4778 | register char * const send = s + len; |
4779 | register char *base = NULL; | |
a0d0e21e | 4780 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4781 | bool noblank = FALSE; |
4782 | bool repeat = FALSE; | |
a0d0e21e | 4783 | bool postspace = FALSE; |
dea28490 JJ |
4784 | U32 *fops; |
4785 | register U32 *fpc; | |
cbbf8932 | 4786 | U32 *linepc = NULL; |
a0d0e21e LW |
4787 | register I32 arg; |
4788 | bool ischop; | |
a1b95068 WL |
4789 | bool unchopnum = FALSE; |
4790 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4791 | |
7918f24d NC |
4792 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4793 | ||
55497cff | 4794 | if (len == 0) |
cea2e8a9 | 4795 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4796 | |
815f25c6 DM |
4797 | /* estimate the buffer size needed */ |
4798 | for (base = s; s <= send; s++) { | |
a1b95068 | 4799 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4800 | maxops += 10; |
4801 | } | |
4802 | s = base; | |
c445ea15 | 4803 | base = NULL; |
815f25c6 | 4804 | |
a02a5408 | 4805 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4806 | fpc = fops; |
4807 | ||
4808 | if (s < send) { | |
4809 | linepc = fpc; | |
4810 | *fpc++ = FF_LINEMARK; | |
4811 | noblank = repeat = FALSE; | |
4812 | base = s; | |
4813 | } | |
4814 | ||
4815 | while (s <= send) { | |
4816 | switch (*s++) { | |
4817 | default: | |
4818 | skipspaces = 0; | |
4819 | continue; | |
4820 | ||
4821 | case '~': | |
4822 | if (*s == '~') { | |
4823 | repeat = TRUE; | |
4824 | *s = ' '; | |
4825 | } | |
4826 | noblank = TRUE; | |
4827 | s[-1] = ' '; | |
4828 | /* FALL THROUGH */ | |
4829 | case ' ': case '\t': | |
4830 | skipspaces++; | |
4831 | continue; | |
a1b95068 WL |
4832 | case 0: |
4833 | if (s < send) { | |
4834 | skipspaces = 0; | |
4835 | continue; | |
4836 | } /* else FALL THROUGH */ | |
4837 | case '\n': | |
a0d0e21e LW |
4838 | arg = s - base; |
4839 | skipspaces++; | |
4840 | arg -= skipspaces; | |
4841 | if (arg) { | |
5f05dabc | 4842 | if (postspace) |
a0d0e21e | 4843 | *fpc++ = FF_SPACE; |
a0d0e21e | 4844 | *fpc++ = FF_LITERAL; |
eb160463 | 4845 | *fpc++ = (U16)arg; |
a0d0e21e | 4846 | } |
5f05dabc | 4847 | postspace = FALSE; |
a0d0e21e LW |
4848 | if (s <= send) |
4849 | skipspaces--; | |
4850 | if (skipspaces) { | |
4851 | *fpc++ = FF_SKIP; | |
eb160463 | 4852 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4853 | } |
4854 | skipspaces = 0; | |
4855 | if (s <= send) | |
4856 | *fpc++ = FF_NEWLINE; | |
4857 | if (noblank) { | |
4858 | *fpc++ = FF_BLANK; | |
4859 | if (repeat) | |
4860 | arg = fpc - linepc + 1; | |
4861 | else | |
4862 | arg = 0; | |
eb160463 | 4863 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4864 | } |
4865 | if (s < send) { | |
4866 | linepc = fpc; | |
4867 | *fpc++ = FF_LINEMARK; | |
4868 | noblank = repeat = FALSE; | |
4869 | base = s; | |
4870 | } | |
4871 | else | |
4872 | s++; | |
4873 | continue; | |
4874 | ||
4875 | case '@': | |
4876 | case '^': | |
4877 | ischop = s[-1] == '^'; | |
4878 | ||
4879 | if (postspace) { | |
4880 | *fpc++ = FF_SPACE; | |
4881 | postspace = FALSE; | |
4882 | } | |
4883 | arg = (s - base) - 1; | |
4884 | if (arg) { | |
4885 | *fpc++ = FF_LITERAL; | |
eb160463 | 4886 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4887 | } |
4888 | ||
4889 | base = s - 1; | |
4890 | *fpc++ = FF_FETCH; | |
4891 | if (*s == '*') { | |
4892 | s++; | |
a1b95068 WL |
4893 | *fpc++ = 2; /* skip the @* or ^* */ |
4894 | if (ischop) { | |
4895 | *fpc++ = FF_LINESNGL; | |
4896 | *fpc++ = FF_CHOP; | |
4897 | } else | |
4898 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4899 | } |
4900 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4901 | arg = ischop ? 512 : 0; | |
4902 | base = s - 1; | |
4903 | while (*s == '#') | |
4904 | s++; | |
4905 | if (*s == '.') { | |
06b5626a | 4906 | const char * const f = ++s; |
a0d0e21e LW |
4907 | while (*s == '#') |
4908 | s++; | |
4909 | arg |= 256 + (s - f); | |
4910 | } | |
4911 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4912 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4913 | *fpc++ = (U16)arg; |
a1b95068 | 4914 | unchopnum |= ! ischop; |
784707d5 JP |
4915 | } |
4916 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4917 | arg = ischop ? 512 : 0; | |
4918 | base = s - 1; | |
4919 | s++; /* skip the '0' first */ | |
4920 | while (*s == '#') | |
4921 | s++; | |
4922 | if (*s == '.') { | |
06b5626a | 4923 | const char * const f = ++s; |
784707d5 JP |
4924 | while (*s == '#') |
4925 | s++; | |
4926 | arg |= 256 + (s - f); | |
4927 | } | |
4928 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4929 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4930 | *fpc++ = (U16)arg; |
a1b95068 | 4931 | unchopnum |= ! ischop; |
a0d0e21e LW |
4932 | } |
4933 | else { | |
4934 | I32 prespace = 0; | |
4935 | bool ismore = FALSE; | |
4936 | ||
4937 | if (*s == '>') { | |
4938 | while (*++s == '>') ; | |
4939 | prespace = FF_SPACE; | |
4940 | } | |
4941 | else if (*s == '|') { | |
4942 | while (*++s == '|') ; | |
4943 | prespace = FF_HALFSPACE; | |
4944 | postspace = TRUE; | |
4945 | } | |
4946 | else { | |
4947 | if (*s == '<') | |
4948 | while (*++s == '<') ; | |
4949 | postspace = TRUE; | |
4950 | } | |
4951 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4952 | s += 3; | |
4953 | ismore = TRUE; | |
4954 | } | |
4955 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4956 | ||
4957 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4958 | ||
4959 | if (prespace) | |
eb160463 | 4960 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4961 | *fpc++ = FF_ITEM; |
4962 | if (ismore) | |
4963 | *fpc++ = FF_MORE; | |
4964 | if (ischop) | |
4965 | *fpc++ = FF_CHOP; | |
4966 | } | |
4967 | base = s; | |
4968 | skipspaces = 0; | |
4969 | continue; | |
4970 | } | |
4971 | } | |
4972 | *fpc++ = FF_END; | |
4973 | ||
815f25c6 | 4974 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4975 | arg = fpc - fops; |
4976 | { /* need to jump to the next word */ | |
4977 | int z; | |
4978 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4979 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4980 | s = SvPVX(sv) + SvCUR(sv) + z; |
4981 | } | |
dea28490 | 4982 | Copy(fops, s, arg, U32); |
a0d0e21e | 4983 | Safefree(fops); |
c445ea15 | 4984 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4985 | SvCOMPILED_on(sv); |
a1b95068 | 4986 | |
bfed75c6 | 4987 | if (unchopnum && repeat) |
a1b95068 WL |
4988 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4989 | return 0; | |
4990 | } | |
4991 | ||
4992 | ||
4993 | STATIC bool | |
4994 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4995 | { | |
4996 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4997 | NV pwr = 1; | |
4998 | NV eps = 0.5; | |
4999 | bool res = FALSE; | |
5000 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5001 | ||
5002 | if (frcsize & 256) | |
5003 | intsize--; | |
5004 | frcsize &= 255; | |
5005 | intsize -= frcsize; | |
5006 | ||
5007 | while (intsize--) pwr *= 10.0; | |
5008 | while (frcsize--) eps /= 10.0; | |
5009 | ||
5010 | if( value >= 0 ){ | |
5011 | if (value + eps >= pwr) | |
5012 | res = TRUE; | |
5013 | } else { | |
5014 | if (value - eps <= -pwr) | |
5015 | res = TRUE; | |
5016 | } | |
5017 | return res; | |
a0d0e21e | 5018 | } |
4e35701f | 5019 | |
bbed91b5 | 5020 | static I32 |
0bd48802 | 5021 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5022 | { |
27da23d5 | 5023 | dVAR; |
0bd48802 | 5024 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5025 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5026 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5027 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5028 | int status = 0; |
ec0b63d7 | 5029 | SV *upstream; |
941a98a0 | 5030 | STRLEN got_len; |
162177c1 Z |
5031 | char *got_p = NULL; |
5032 | char *prune_from = NULL; | |
34113e50 | 5033 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
5034 | STRLEN umaxlen; |
5035 | ||
7918f24d NC |
5036 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5037 | ||
bb7a0f54 MHM |
5038 | assert(maxlen >= 0); |
5039 | umaxlen = maxlen; | |
5675696b | 5040 | |
bbed91b5 KF |
5041 | /* I was having segfault trouble under Linux 2.2.5 after a |
5042 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5043 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5044 | not sure where the trouble is yet. XXX */ |
5045 | ||
4464f08e NC |
5046 | { |
5047 | SV *const cache = datasv; | |
937b367d NC |
5048 | if (SvOK(cache)) { |
5049 | STRLEN cache_len; | |
5050 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5051 | STRLEN take = 0; |
5052 | ||
bb7a0f54 | 5053 | if (umaxlen) { |
941a98a0 NC |
5054 | /* Running in block mode and we have some cached data already. |
5055 | */ | |
bb7a0f54 | 5056 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5057 | /* In fact, so much data we don't even need to call |
5058 | filter_read. */ | |
bb7a0f54 | 5059 | take = umaxlen; |
941a98a0 NC |
5060 | } |
5061 | } else { | |
10edeb5d JH |
5062 | const char *const first_nl = |
5063 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5064 | if (first_nl) { |
5065 | take = first_nl + 1 - cache_p; | |
5066 | } | |
5067 | } | |
5068 | if (take) { | |
5069 | sv_catpvn(buf_sv, cache_p, take); | |
5070 | sv_chop(cache, cache_p + take); | |
937b367d NC |
5071 | /* Definately not EOF */ |
5072 | return 1; | |
5073 | } | |
941a98a0 | 5074 | |
937b367d | 5075 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5076 | if (umaxlen) { |
5077 | umaxlen -= cache_len; | |
941a98a0 | 5078 | } |
937b367d | 5079 | SvOK_off(cache); |
34113e50 | 5080 | read_from_cache = TRUE; |
937b367d NC |
5081 | } |
5082 | } | |
ec0b63d7 | 5083 | |
34113e50 NC |
5084 | /* Filter API says that the filter appends to the contents of the buffer. |
5085 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5086 | then clearly what it contains is already filtered by this filter, so we | |
5087 | don't want to pass it in a second time. | |
5088 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5089 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5090 | ? sv_newmortal() : buf_sv; | |
5091 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5092 | |
bbed91b5 | 5093 | if (filter_has_file) { |
67e70b33 | 5094 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5095 | } |
5096 | ||
34113e50 | 5097 | if (filter_sub && status >= 0) { |
39644a26 | 5098 | dSP; |
bbed91b5 KF |
5099 | int count; |
5100 | ||
d343c3ef | 5101 | ENTER_with_name("call_filter_sub"); |
bbed91b5 KF |
5102 | SAVE_DEFSV; |
5103 | SAVETMPS; | |
5104 | EXTEND(SP, 2); | |
5105 | ||
414bf5ae | 5106 | DEFSV_set(upstream); |
bbed91b5 | 5107 | PUSHMARK(SP); |
6e449a3a | 5108 | mPUSHi(0); |
bbed91b5 KF |
5109 | if (filter_state) { |
5110 | PUSHs(filter_state); | |
5111 | } | |
5112 | PUTBACK; | |
5113 | count = call_sv(filter_sub, G_SCALAR); | |
5114 | SPAGAIN; | |
5115 | ||
5116 | if (count > 0) { | |
5117 | SV *out = POPs; | |
5118 | if (SvOK(out)) { | |
941a98a0 | 5119 | status = SvIV(out); |
bbed91b5 KF |
5120 | } |
5121 | } | |
5122 | ||
5123 | PUTBACK; | |
5124 | FREETMPS; | |
d343c3ef | 5125 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5126 | } |
5127 | ||
941a98a0 NC |
5128 | if(SvOK(upstream)) { |
5129 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
5130 | if (umaxlen) { |
5131 | if (got_len > umaxlen) { | |
5132 | prune_from = got_p + umaxlen; | |
937b367d | 5133 | } |
941a98a0 | 5134 | } else { |
162177c1 | 5135 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5136 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5137 | /* There's a second line here... */ | |
5138 | prune_from = first_nl + 1; | |
937b367d | 5139 | } |
937b367d NC |
5140 | } |
5141 | } | |
941a98a0 NC |
5142 | if (prune_from) { |
5143 | /* Oh. Too long. Stuff some in our cache. */ | |
5144 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5145 | SV *const cache = datasv; |
941a98a0 | 5146 | |
4464f08e | 5147 | if (SvOK(cache)) { |
941a98a0 NC |
5148 | /* Cache should be empty. */ |
5149 | assert(!SvCUR(cache)); | |
5150 | } | |
5151 | ||
5152 | sv_setpvn(cache, prune_from, cached_len); | |
5153 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5154 | "If it breaks, you get to keep both parts" | |
5155 | (Your code is broken if you don't put them back together again | |
5156 | before something notices.) */ | |
5157 | if (SvUTF8(upstream)) { | |
5158 | SvUTF8_on(cache); | |
5159 | } | |
5160 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5161 | *prune_from = 0; |
941a98a0 NC |
5162 | /* Can't yet be EOF */ |
5163 | if (status == 0) | |
5164 | status = 1; | |
5165 | } | |
937b367d | 5166 | |
34113e50 NC |
5167 | /* If they are at EOF but buf_sv has something in it, then they may never |
5168 | have touched the SV upstream, so it may be undefined. If we naively | |
5169 | concatenate it then we get a warning about use of uninitialised value. | |
5170 | */ | |
5171 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5172 | sv_catsv(buf_sv, upstream); |
5173 | } | |
5174 | ||
941a98a0 | 5175 | if (status <= 0) { |
bbed91b5 | 5176 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5177 | if (filter_state) { |
5178 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5179 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5180 | } |
5181 | if (filter_sub) { | |
5182 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5183 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5184 | } |
0bd48802 | 5185 | filter_del(S_run_user_filter); |
bbed91b5 | 5186 | } |
34113e50 NC |
5187 | if (status == 0 && read_from_cache) { |
5188 | /* If we read some data from the cache (and by getting here it implies | |
5189 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5190 | report that to our caller. */ | |
5191 | return 1; | |
5192 | } | |
941a98a0 | 5193 | return status; |
bbed91b5 | 5194 | } |
84d4ea48 | 5195 | |
be4b629d CN |
5196 | /* perhaps someone can come up with a better name for |
5197 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5198 | static bool |
5f66b61c | 5199 | S_path_is_absolute(const char *name) |
be4b629d | 5200 | { |
7918f24d NC |
5201 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5202 | ||
be4b629d | 5203 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5204 | #ifdef WIN32 |
36f064bc CL |
5205 | || (*name == '.' && ((name[1] == '/' || |
5206 | (name[1] == '.' && name[2] == '/')) | |
5207 | || (name[1] == '\\' || | |
5208 | ( name[1] == '.' && name[2] == '\\'))) | |
5209 | ) | |
5210 | #else | |
be4b629d | 5211 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5212 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5213 | #endif |
0bd48802 | 5214 | ) |
be4b629d CN |
5215 | { |
5216 | return TRUE; | |
5217 | } | |
5218 | else | |
5219 | return FALSE; | |
5220 | } | |
241d1a3b NC |
5221 | |
5222 | /* | |
5223 | * Local variables: | |
5224 | * c-indentation-style: bsd | |
5225 | * c-basic-offset: 4 | |
5226 | * indent-tabs-mode: t | |
5227 | * End: | |
5228 | * | |
37442d52 RGS |
5229 | * ex: set ts=8 sts=4 sw=4 noet: |
5230 | */ |