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 | ||
54310121 | 37 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 38 | |
94fcd414 NC |
39 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
40 | ||
a0d0e21e LW |
41 | PP(pp_wantarray) |
42 | { | |
97aff369 | 43 | dVAR; |
39644a26 | 44 | dSP; |
a0d0e21e LW |
45 | I32 cxix; |
46 | EXTEND(SP, 1); | |
47 | ||
48 | cxix = dopoptosub(cxstack_ix); | |
49 | if (cxix < 0) | |
50 | RETPUSHUNDEF; | |
51 | ||
54310121 | 52 | switch (cxstack[cxix].blk_gimme) { |
53 | case G_ARRAY: | |
a0d0e21e | 54 | RETPUSHYES; |
54310121 | 55 | case G_SCALAR: |
a0d0e21e | 56 | RETPUSHNO; |
54310121 | 57 | default: |
58 | RETPUSHUNDEF; | |
59 | } | |
a0d0e21e LW |
60 | } |
61 | ||
2cd61cdb IZ |
62 | PP(pp_regcreset) |
63 | { | |
97aff369 | 64 | dVAR; |
2cd61cdb IZ |
65 | /* XXXX Should store the old value to allow for tie/overload - and |
66 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 67 | PL_reginterp_cnt = 0; |
0b4182de | 68 | TAINT_NOT; |
2cd61cdb IZ |
69 | return NORMAL; |
70 | } | |
71 | ||
b3eb6a9b GS |
72 | PP(pp_regcomp) |
73 | { | |
97aff369 | 74 | dVAR; |
39644a26 | 75 | dSP; |
a0d0e21e | 76 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 77 | SV *tmpstr; |
84679df5 | 78 | REGEXP *re = NULL; |
bfed75c6 | 79 | |
4b5a0d1c | 80 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 81 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
82 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
83 | if (PL_op->op_flags & OPf_STACKED) { | |
84 | dMARK; | |
85 | SP = MARK; | |
86 | } | |
87 | else | |
88 | (void)POPs; | |
89 | RETURN; | |
90 | } | |
513629ba | 91 | #endif |
d4b87e75 BM |
92 | |
93 | #define tryAMAGICregexp(rx) \ | |
94 | STMT_START { \ | |
6f1401dc | 95 | SvGETMAGIC(rx); \ |
d4b87e75 | 96 | if (SvROK(rx) && SvAMAGIC(rx)) { \ |
31d632c3 | 97 | SV *sv = AMG_CALLunary(rx, regexp_amg); \ |
d4b87e75 BM |
98 | if (sv) { \ |
99 | if (SvROK(sv)) \ | |
100 | sv = SvRV(sv); \ | |
101 | if (SvTYPE(sv) != SVt_REGEXP) \ | |
102 | Perl_croak(aTHX_ "Overloaded qr did not return a REGEXP"); \ | |
103 | rx = sv; \ | |
104 | } \ | |
105 | } \ | |
106 | } STMT_END | |
107 | ||
108 | ||
131b3ad0 | 109 | if (PL_op->op_flags & OPf_STACKED) { |
486ec47a | 110 | /* multiple args; concatenate them */ |
131b3ad0 DM |
111 | dMARK; dORIGMARK; |
112 | tmpstr = PAD_SV(ARGTARG); | |
76f68e9b | 113 | sv_setpvs(tmpstr, ""); |
131b3ad0 | 114 | while (++MARK <= SP) { |
d4b87e75 | 115 | SV *msv = *MARK; |
79a8d529 | 116 | SV *sv; |
d4b87e75 | 117 | |
79a8d529 | 118 | tryAMAGICregexp(msv); |
d4b87e75 | 119 | |
79a8d529 DM |
120 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) && |
121 | (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign))) | |
122 | { | |
123 | sv_setsv(tmpstr, sv); | |
124 | continue; | |
131b3ad0 | 125 | } |
a9984b10 | 126 | sv_catsv_nomg(tmpstr, msv); |
131b3ad0 DM |
127 | } |
128 | SvSETMAGIC(tmpstr); | |
129 | SP = ORIGMARK; | |
130 | } | |
d4b87e75 | 131 | else { |
131b3ad0 | 132 | tmpstr = POPs; |
d4b87e75 BM |
133 | tryAMAGICregexp(tmpstr); |
134 | } | |
135 | ||
136 | #undef tryAMAGICregexp | |
513629ba | 137 | |
b3eb6a9b | 138 | if (SvROK(tmpstr)) { |
d8f6592e | 139 | SV * const sv = SvRV(tmpstr); |
5c35adbb | 140 | if (SvTYPE(sv) == SVt_REGEXP) |
d2f13c59 | 141 | re = (REGEXP*) sv; |
c277df42 | 142 | } |
d4b87e75 BM |
143 | else if (SvTYPE(tmpstr) == SVt_REGEXP) |
144 | re = (REGEXP*) tmpstr; | |
145 | ||
5c35adbb | 146 | if (re) { |
69dc4b30 FC |
147 | /* The match's LHS's get-magic might need to access this op's reg- |
148 | exp (as is sometimes the case with $'; see bug 70764). So we | |
149 | must call get-magic now before we replace the regexp. Hopeful- | |
150 | ly this hack can be replaced with the approach described at | |
151 | http://www.nntp.perl.org/group/perl.perl5.porters/2007/03 | |
152 | /msg122415.html some day. */ | |
455d9033 FC |
153 | if(pm->op_type == OP_MATCH) { |
154 | SV *lhs; | |
155 | const bool was_tainted = PL_tainted; | |
156 | if (pm->op_flags & OPf_STACKED) | |
69dc4b30 | 157 | lhs = TOPs; |
455d9033 FC |
158 | else if (pm->op_private & OPpTARGET_MY) |
159 | lhs = PAD_SV(pm->op_targ); | |
160 | else lhs = DEFSV; | |
161 | SvGETMAGIC(lhs); | |
162 | /* Restore the previous value of PL_tainted (which may have been | |
163 | modified by get-magic), to avoid incorrectly setting the | |
164 | RXf_TAINTED flag further down. */ | |
165 | PL_tainted = was_tainted; | |
166 | } | |
69dc4b30 | 167 | |
f0826785 | 168 | re = reg_temp_copy(NULL, re); |
aaa362c4 | 169 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 170 | PM_SETRE(pm, re); |
c277df42 IZ |
171 | } |
172 | else { | |
f3ec07c7 DM |
173 | STRLEN len = 0; |
174 | const char *t = SvOK(tmpstr) ? SvPV_nomg_const(tmpstr, len) : ""; | |
175 | ||
c737faaf | 176 | re = PM_GETRE(pm); |
14a49a24 | 177 | assert (re != (REGEXP*) &PL_sv_undef); |
c277df42 | 178 | |
20408e3c | 179 | /* Check against the last compiled regexp. */ |
a11c8683 | 180 | if (!re || !RX_PRECOMP(re) || RX_PRELEN(re) != len || |
220fc49f | 181 | memNE(RX_PRECOMP(re), t, len)) |
85aff577 | 182 | { |
07bc277f | 183 | const regexp_engine *eng = re ? RX_ENGINE(re) : NULL; |
73134a2e | 184 | U32 pm_flags = pm->op_pmflags & RXf_PMf_COMPILETIME; |
d8f6592e AL |
185 | if (re) { |
186 | ReREFCNT_dec(re); | |
14a49a24 NC |
187 | #ifdef USE_ITHREADS |
188 | PM_SETRE(pm, (REGEXP*) &PL_sv_undef); | |
189 | #else | |
4608196e | 190 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
14a49a24 | 191 | #endif |
1e2e3d02 | 192 | } else if (PL_curcop->cop_hints_hash) { |
20439bc7 | 193 | SV *ptr = cop_hints_fetch_pvs(PL_curcop, "regcomp", 0); |
1e2e3d02 YO |
194 | if (ptr && SvIOK(ptr) && SvIV(ptr)) |
195 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 196 | } |
664e119d | 197 | |
533c011a | 198 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 199 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 200 | |
b9ad30b4 NC |
201 | if (DO_UTF8(tmpstr)) { |
202 | assert (SvUTF8(tmpstr)); | |
203 | } else if (SvUTF8(tmpstr)) { | |
204 | /* Not doing UTF-8, despite what the SV says. Is this only if | |
205 | we're trapped in use 'bytes'? */ | |
206 | /* Make a copy of the octet sequence, but without the flag on, | |
207 | as the compiler now honours the SvUTF8 flag on tmpstr. */ | |
208 | STRLEN len; | |
209 | const char *const p = SvPV(tmpstr, len); | |
210 | tmpstr = newSVpvn_flags(p, len, SVs_TEMP); | |
211 | } | |
f3ec07c7 DM |
212 | else if (SvAMAGIC(tmpstr)) { |
213 | /* make a copy to avoid extra stringifies */ | |
0479a84a | 214 | tmpstr = newSVpvn_flags(t, len, SVs_TEMP | SvUTF8(tmpstr)); |
f3ec07c7 | 215 | } |
c737faaf | 216 | |
a9984b10 FC |
217 | /* If it is gmagical, create a mortal copy, but without calling |
218 | get-magic, as we have already done that. */ | |
219 | if(SvGMAGICAL(tmpstr)) { | |
220 | SV *mortalcopy = sv_newmortal(); | |
221 | sv_setsv_flags(mortalcopy, tmpstr, 0); | |
222 | tmpstr = mortalcopy; | |
223 | } | |
224 | ||
5a8697a7 | 225 | if (eng) |
3ab4a224 | 226 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); |
5a8697a7 | 227 | else |
3ab4a224 | 228 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); |
c737faaf | 229 | |
f86aaa29 | 230 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 231 | inside tie/overload accessors. */ |
c277df42 | 232 | } |
4633a7c4 | 233 | } |
c737faaf YO |
234 | |
235 | re = PM_GETRE(pm); | |
a0d0e21e | 236 | |
72311751 | 237 | #ifndef INCOMPLETE_TAINTS |
3280af22 | 238 | if (PL_tainting) { |
9274aefd DM |
239 | if (PL_tainted) { |
240 | SvTAINTED_on((SV*)re); | |
07bc277f | 241 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
9274aefd | 242 | } |
72311751 GS |
243 | } |
244 | #endif | |
245 | ||
220fc49f | 246 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 247 | pm = PL_curpm; |
a0d0e21e | 248 | |
c737faaf YO |
249 | |
250 | #if !defined(USE_ITHREADS) | |
251 | /* can't change the optree at runtime either */ | |
252 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 253 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 254 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 255 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 256 | } |
c737faaf | 257 | #endif |
a0d0e21e LW |
258 | RETURN; |
259 | } | |
260 | ||
261 | PP(pp_substcont) | |
262 | { | |
97aff369 | 263 | dVAR; |
39644a26 | 264 | dSP; |
c09156bb | 265 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
266 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
267 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
268 | register char *s = cx->sb_s; |
269 | register char *m = cx->sb_m; | |
270 | char *orig = cx->sb_orig; | |
901017d6 | 271 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 272 | SV *nsv = NULL; |
988e6e7e | 273 | REGEXP *old = PM_GETRE(pm); |
f410a211 NC |
274 | |
275 | PERL_ASYNC_CHECK(); | |
276 | ||
988e6e7e | 277 | if(old != rx) { |
bfed75c6 | 278 | if(old) |
988e6e7e | 279 | ReREFCNT_dec(old); |
d6106309 | 280 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
281 | } |
282 | ||
d9f97599 | 283 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 284 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 285 | |
a0d0e21e | 286 | if (cx->sb_iters++) { |
a3b680e6 | 287 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 288 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 289 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 290 | |
447ee134 DM |
291 | SvGETMAGIC(TOPs); /* possibly clear taint on $1 etc: #67962 */ |
292 | ||
ef07e810 | 293 | /* See "how taint works" above pp_subst() */ |
20be6587 DM |
294 | if (SvTAINTED(TOPs)) |
295 | cx->sb_rxtainted |= SUBST_TAINT_REPL; | |
447ee134 | 296 | sv_catsv_nomg(dstr, POPs); |
2c296965 YO |
297 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
298 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
299 | |
300 | /* Are we done */ | |
134b8cd8 NC |
301 | /* I believe that we can't set REXEC_SCREAM here if |
302 | SvSCREAM(cx->sb_targ) is true because SvPVX(cx->sb_targ) isn't always | |
303 | equal to s. [See the comment before Perl_re_intuit_start(), which is | |
304 | called from Perl_regexec_flags(), which says that it should be when | |
305 | SvSCREAM() is true.] s, cx->sb_strend and orig will be consistent | |
306 | with SvPVX(cx->sb_targ), as substconst doesn't modify cx->sb_targ | |
307 | during the match. */ | |
2c296965 YO |
308 | if (CxONCE(cx) || s < orig || |
309 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
310 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
311 | ((cx->sb_rflags & REXEC_COPY_STR) | |
312 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
313 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 314 | { |
8ca8a454 | 315 | SV *targ = cx->sb_targ; |
748a9306 | 316 | |
078c425b JH |
317 | assert(cx->sb_strend >= s); |
318 | if(cx->sb_strend > s) { | |
319 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
320 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
321 | else | |
322 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
323 | } | |
20be6587 DM |
324 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ |
325 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
9212bbba | 326 | |
8ca8a454 NC |
327 | if (pm->op_pmflags & PMf_NONDESTRUCT) { |
328 | PUSHs(dstr); | |
329 | /* From here on down we're using the copy, and leaving the | |
330 | original untouched. */ | |
331 | targ = dstr; | |
332 | } | |
333 | else { | |
f8c7b90f | 334 | #ifdef PERL_OLD_COPY_ON_WRITE |
8ca8a454 NC |
335 | if (SvIsCOW(targ)) { |
336 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
337 | } else | |
ed252734 | 338 | #endif |
8ca8a454 NC |
339 | { |
340 | SvPV_free(targ); | |
341 | } | |
342 | SvPV_set(targ, SvPVX(dstr)); | |
343 | SvCUR_set(targ, SvCUR(dstr)); | |
344 | SvLEN_set(targ, SvLEN(dstr)); | |
345 | if (DO_UTF8(dstr)) | |
346 | SvUTF8_on(targ); | |
347 | SvPV_set(dstr, NULL); | |
348 | ||
4f4d7508 | 349 | mPUSHi(saviters - 1); |
48c036b1 | 350 | |
8ca8a454 NC |
351 | (void)SvPOK_only_UTF8(targ); |
352 | } | |
5cd24f17 | 353 | |
20be6587 | 354 | /* update the taint state of various various variables in |
ef07e810 DM |
355 | * preparation for final exit. |
356 | * See "how taint works" above pp_subst() */ | |
20be6587 DM |
357 | if (PL_tainting) { |
358 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
359 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
360 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
361 | ) | |
362 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
363 | ||
364 | if (!(cx->sb_rxtainted & SUBST_TAINT_BOOLRET) | |
365 | && (cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_PAT)) | |
366 | ) | |
367 | SvTAINTED_on(TOPs); /* taint return value */ | |
368 | /* needed for mg_set below */ | |
369 | PL_tainted = cBOOL(cx->sb_rxtainted & | |
370 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL)); | |
371 | SvTAINT(TARG); | |
372 | } | |
373 | /* PL_tainted must be correctly set for this mg_set */ | |
374 | SvSETMAGIC(TARG); | |
375 | TAINT_NOT; | |
4633a7c4 | 376 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
377 | POPSUBST(cx); |
378 | RETURNOP(pm->op_next); | |
20be6587 | 379 | /* NOTREACHED */ |
a0d0e21e | 380 | } |
8e5e9ebe | 381 | cx->sb_iters = saviters; |
a0d0e21e | 382 | } |
07bc277f | 383 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
384 | m = s; |
385 | s = orig; | |
07bc277f | 386 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
387 | s = orig + (m - s); |
388 | cx->sb_strend = s + (cx->sb_strend - m); | |
389 | } | |
07bc277f | 390 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 391 | if (m > s) { |
bfed75c6 | 392 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
393 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
394 | else | |
395 | sv_catpvn(dstr, s, m-s); | |
396 | } | |
07bc277f | 397 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 398 | { /* Update the pos() information. */ |
8ca8a454 NC |
399 | SV * const sv |
400 | = (pm->op_pmflags & PMf_NONDESTRUCT) ? cx->sb_dstr : cx->sb_targ; | |
084916e3 | 401 | MAGIC *mg; |
7a7f3e45 | 402 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 403 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 404 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 405 | if (SvIsCOW(sv)) |
d83f0a82 NC |
406 | sv_force_normal_flags(sv, 0); |
407 | #endif | |
408 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
409 | NULL, 0); | |
084916e3 | 410 | } |
ce474962 | 411 | mg->mg_len = m - orig; |
084916e3 | 412 | } |
988e6e7e | 413 | if (old != rx) |
d6106309 | 414 | (void)ReREFCNT_inc(rx); |
20be6587 | 415 | /* update the taint state of various various variables in preparation |
ef07e810 DM |
416 | * for calling the code block. |
417 | * See "how taint works" above pp_subst() */ | |
20be6587 DM |
418 | if (PL_tainting) { |
419 | if (RX_MATCH_TAINTED(rx)) /* run time pattern taint, eg locale */ | |
420 | cx->sb_rxtainted |= SUBST_TAINT_PAT; | |
421 | ||
422 | if ((cx->sb_rxtainted & SUBST_TAINT_PAT) || | |
423 | ((cx->sb_rxtainted & (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
424 | == (SUBST_TAINT_STR|SUBST_TAINT_RETAINT)) | |
425 | ) | |
426 | (RX_MATCH_TAINTED_on(rx)); /* taint $1 et al */ | |
427 | ||
428 | if (cx->sb_iters > 1 && (cx->sb_rxtainted & | |
429 | (SUBST_TAINT_STR|SUBST_TAINT_PAT|SUBST_TAINT_REPL))) | |
8ca8a454 NC |
430 | SvTAINTED_on((pm->op_pmflags & PMf_NONDESTRUCT) |
431 | ? cx->sb_dstr : cx->sb_targ); | |
20be6587 DM |
432 | TAINT_NOT; |
433 | } | |
d9f97599 | 434 | rxres_save(&cx->sb_rxres, rx); |
af9838cc | 435 | PL_curpm = pm; |
29f2e912 | 436 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
437 | } |
438 | ||
c90c0ff4 | 439 | void |
864dbfa3 | 440 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 441 | { |
442 | UV *p = (UV*)*rsp; | |
443 | U32 i; | |
7918f24d NC |
444 | |
445 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 446 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 447 | |
07bc277f | 448 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 449 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 450 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 451 | #else |
07bc277f | 452 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 453 | #endif |
c90c0ff4 | 454 | if (!p) |
a02a5408 | 455 | Newx(p, i, UV); |
c90c0ff4 | 456 | else |
457 | Renew(p, i, UV); | |
458 | *rsp = (void*)p; | |
459 | } | |
460 | ||
07bc277f | 461 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 462 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 463 | |
f8c7b90f | 464 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
465 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
466 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
467 | #endif |
468 | ||
07bc277f | 469 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 470 | |
07bc277f NC |
471 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
472 | *p++ = (UV)RX_SUBLEN(rx); | |
473 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
474 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
475 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 476 | } |
477 | } | |
478 | ||
9c105995 NC |
479 | static void |
480 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 481 | { |
482 | UV *p = (UV*)*rsp; | |
483 | U32 i; | |
7918f24d NC |
484 | |
485 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 486 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 487 | |
ed252734 | 488 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 489 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 490 | *p++ = 0; |
491 | ||
f8c7b90f | 492 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
493 | if (RX_SAVED_COPY(rx)) |
494 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
495 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
496 | *p++ = 0; |
497 | #endif | |
498 | ||
07bc277f | 499 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 500 | |
07bc277f NC |
501 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
502 | RX_SUBLEN(rx) = (I32)(*p++); | |
503 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
504 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
505 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 506 | } |
507 | } | |
508 | ||
9c105995 NC |
509 | static void |
510 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 511 | { |
44f8325f | 512 | UV * const p = (UV*)*rsp; |
7918f24d NC |
513 | |
514 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 515 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 516 | |
517 | if (p) { | |
94010e71 NC |
518 | #ifdef PERL_POISON |
519 | void *tmp = INT2PTR(char*,*p); | |
520 | Safefree(tmp); | |
521 | if (*p) | |
7e337ee0 | 522 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 523 | #else |
56431972 | 524 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 525 | #endif |
f8c7b90f | 526 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
527 | if (p[1]) { |
528 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
529 | } | |
530 | #endif | |
c90c0ff4 | 531 | Safefree(p); |
4608196e | 532 | *rsp = NULL; |
c90c0ff4 | 533 | } |
534 | } | |
535 | ||
a701009a DM |
536 | #define FORM_NUM_BLANK (1<<30) |
537 | #define FORM_NUM_POINT (1<<29) | |
538 | ||
a0d0e21e LW |
539 | PP(pp_formline) |
540 | { | |
97aff369 | 541 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 542 | register SV * const tmpForm = *++MARK; |
086b26f3 DM |
543 | SV *formsv; /* contains text of original format */ |
544 | register U32 *fpc; /* format ops program counter */ | |
545 | register char *t; /* current append position in target string */ | |
546 | const char *f; /* current position in format string */ | |
a0d0e21e | 547 | register I32 arg; |
086b26f3 DM |
548 | register SV *sv = NULL; /* current item */ |
549 | const char *item = NULL;/* string value of current item */ | |
550 | I32 itemsize = 0; /* length of current item, possibly truncated */ | |
551 | I32 fieldsize = 0; /* width of current field */ | |
552 | I32 lines = 0; /* number of lines that have been output */ | |
553 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); /* does $: have space */ | |
554 | const char *chophere = NULL; /* where to chop current item */ | |
f5ada144 | 555 | STRLEN linemark = 0; /* pos of start of line in output */ |
65202027 | 556 | NV value; |
086b26f3 | 557 | bool gotsome = FALSE; /* seen at least one non-blank item on this line */ |
a0d0e21e | 558 | STRLEN len; |
26e935cf | 559 | STRLEN linemax; /* estimate of output size in bytes */ |
1bd51a4c IH |
560 | bool item_is_utf8 = FALSE; |
561 | bool targ_is_utf8 = FALSE; | |
bfed75c6 | 562 | const char *fmt; |
74e0ddf7 | 563 | MAGIC *mg = NULL; |
4ff700b9 DM |
564 | U8 *source; /* source of bytes to append */ |
565 | STRLEN to_copy; /* how may bytes to append */ | |
ea60cfe8 | 566 | char trans; /* what chars to translate */ |
74e0ddf7 | 567 | |
3808a683 | 568 | mg = doparseform(tmpForm); |
a0d0e21e | 569 | |
74e0ddf7 | 570 | fpc = (U32*)mg->mg_ptr; |
3808a683 DM |
571 | /* the actual string the format was compiled from. |
572 | * with overload etc, this may not match tmpForm */ | |
573 | formsv = mg->mg_obj; | |
574 | ||
74e0ddf7 | 575 | |
3280af22 | 576 | SvPV_force(PL_formtarget, len); |
3808a683 | 577 | if (SvTAINTED(tmpForm) || SvTAINTED(formsv)) |
125b9982 | 578 | SvTAINTED_on(PL_formtarget); |
1bd51a4c IH |
579 | if (DO_UTF8(PL_formtarget)) |
580 | targ_is_utf8 = TRUE; | |
26e935cf DM |
581 | linemax = (SvCUR(formsv) * (IN_BYTES ? 1 : 3) + 1); |
582 | t = SvGROW(PL_formtarget, len + linemax + 1); | |
583 | /* XXX from now onwards, SvCUR(PL_formtarget) is invalid */ | |
a0d0e21e | 584 | t += len; |
3808a683 | 585 | f = SvPV_const(formsv, len); |
a0d0e21e LW |
586 | |
587 | for (;;) { | |
588 | DEBUG_f( { | |
bfed75c6 | 589 | const char *name = "???"; |
a0d0e21e LW |
590 | arg = -1; |
591 | switch (*fpc) { | |
592 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
593 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
594 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
595 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
596 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
597 | ||
598 | case FF_CHECKNL: name = "CHECKNL"; break; | |
599 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
600 | case FF_SPACE: name = "SPACE"; break; | |
601 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
602 | case FF_ITEM: name = "ITEM"; break; | |
603 | case FF_CHOP: name = "CHOP"; break; | |
604 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
605 | case FF_NEWLINE: name = "NEWLINE"; break; | |
606 | case FF_MORE: name = "MORE"; break; | |
607 | case FF_LINEMARK: name = "LINEMARK"; break; | |
608 | case FF_END: name = "END"; break; | |
bfed75c6 | 609 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 610 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
611 | } |
612 | if (arg >= 0) | |
bf49b057 | 613 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 614 | else |
bf49b057 | 615 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 616 | } ); |
a0d0e21e LW |
617 | switch (*fpc++) { |
618 | case FF_LINEMARK: | |
f5ada144 | 619 | linemark = t - SvPVX(PL_formtarget); |
a0d0e21e LW |
620 | lines++; |
621 | gotsome = FALSE; | |
622 | break; | |
623 | ||
624 | case FF_LITERAL: | |
ea60cfe8 DM |
625 | to_copy = *fpc++; |
626 | source = (U8 *)f; | |
627 | f += to_copy; | |
628 | trans = '~'; | |
75645721 | 629 | item_is_utf8 = targ_is_utf8 ? !!DO_UTF8(formsv) : !!SvUTF8(formsv); |
ea60cfe8 | 630 | goto append; |
a0d0e21e LW |
631 | |
632 | case FF_SKIP: | |
633 | f += *fpc++; | |
634 | break; | |
635 | ||
636 | case FF_FETCH: | |
637 | arg = *fpc++; | |
638 | f += arg; | |
639 | fieldsize = arg; | |
640 | ||
641 | if (MARK < SP) | |
642 | sv = *++MARK; | |
643 | else { | |
3280af22 | 644 | sv = &PL_sv_no; |
a2a5de95 | 645 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e | 646 | } |
125b9982 NT |
647 | if (SvTAINTED(sv)) |
648 | SvTAINTED_on(PL_formtarget); | |
a0d0e21e LW |
649 | break; |
650 | ||
651 | case FF_CHECKNL: | |
5a34cab7 NC |
652 | { |
653 | const char *send; | |
654 | const char *s = item = SvPV_const(sv, len); | |
655 | itemsize = len; | |
656 | if (DO_UTF8(sv)) { | |
657 | itemsize = sv_len_utf8(sv); | |
658 | if (itemsize != (I32)len) { | |
659 | I32 itembytes; | |
660 | if (itemsize > fieldsize) { | |
661 | itemsize = fieldsize; | |
662 | itembytes = itemsize; | |
663 | sv_pos_u2b(sv, &itembytes, 0); | |
664 | } | |
665 | else | |
666 | itembytes = len; | |
667 | send = chophere = s + itembytes; | |
668 | while (s < send) { | |
669 | if (*s & ~31) | |
670 | gotsome = TRUE; | |
671 | else if (*s == '\n') | |
672 | break; | |
673 | s++; | |
674 | } | |
675 | item_is_utf8 = TRUE; | |
676 | itemsize = s - item; | |
677 | sv_pos_b2u(sv, &itemsize); | |
678 | break; | |
a0ed51b3 | 679 | } |
a0ed51b3 | 680 | } |
5a34cab7 NC |
681 | item_is_utf8 = FALSE; |
682 | if (itemsize > fieldsize) | |
683 | itemsize = fieldsize; | |
684 | send = chophere = s + itemsize; | |
685 | while (s < send) { | |
686 | if (*s & ~31) | |
687 | gotsome = TRUE; | |
688 | else if (*s == '\n') | |
689 | break; | |
690 | s++; | |
691 | } | |
692 | itemsize = s - item; | |
693 | break; | |
a0ed51b3 | 694 | } |
a0d0e21e LW |
695 | |
696 | case FF_CHECKCHOP: | |
5a34cab7 NC |
697 | { |
698 | const char *s = item = SvPV_const(sv, len); | |
699 | itemsize = len; | |
700 | if (DO_UTF8(sv)) { | |
701 | itemsize = sv_len_utf8(sv); | |
702 | if (itemsize != (I32)len) { | |
703 | I32 itembytes; | |
704 | if (itemsize <= fieldsize) { | |
705 | const char *send = chophere = s + itemsize; | |
706 | while (s < send) { | |
707 | if (*s == '\r') { | |
708 | itemsize = s - item; | |
a0ed51b3 | 709 | chophere = s; |
a0ed51b3 | 710 | break; |
5a34cab7 NC |
711 | } |
712 | if (*s++ & ~31) | |
a0ed51b3 | 713 | gotsome = TRUE; |
a0ed51b3 | 714 | } |
a0ed51b3 | 715 | } |
5a34cab7 NC |
716 | else { |
717 | const char *send; | |
718 | itemsize = fieldsize; | |
719 | itembytes = itemsize; | |
720 | sv_pos_u2b(sv, &itembytes, 0); | |
721 | send = chophere = s + itembytes; | |
722 | while (s < send || (s == send && isSPACE(*s))) { | |
723 | if (isSPACE(*s)) { | |
724 | if (chopspace) | |
725 | chophere = s; | |
726 | if (*s == '\r') | |
727 | break; | |
728 | } | |
729 | else { | |
730 | if (*s & ~31) | |
731 | gotsome = TRUE; | |
732 | if (strchr(PL_chopset, *s)) | |
733 | chophere = s + 1; | |
734 | } | |
735 | s++; | |
736 | } | |
737 | itemsize = chophere - item; | |
738 | sv_pos_b2u(sv, &itemsize); | |
739 | } | |
740 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
741 | break; |
742 | } | |
a0d0e21e | 743 | } |
5a34cab7 NC |
744 | item_is_utf8 = FALSE; |
745 | if (itemsize <= fieldsize) { | |
746 | const char *const send = chophere = s + itemsize; | |
747 | while (s < send) { | |
748 | if (*s == '\r') { | |
749 | itemsize = s - item; | |
a0d0e21e | 750 | chophere = s; |
a0d0e21e | 751 | break; |
5a34cab7 NC |
752 | } |
753 | if (*s++ & ~31) | |
a0d0e21e | 754 | gotsome = TRUE; |
a0d0e21e | 755 | } |
a0d0e21e | 756 | } |
5a34cab7 NC |
757 | else { |
758 | const char *send; | |
759 | itemsize = fieldsize; | |
760 | send = chophere = s + itemsize; | |
761 | while (s < send || (s == send && isSPACE(*s))) { | |
762 | if (isSPACE(*s)) { | |
763 | if (chopspace) | |
764 | chophere = s; | |
765 | if (*s == '\r') | |
766 | break; | |
767 | } | |
768 | else { | |
769 | if (*s & ~31) | |
770 | gotsome = TRUE; | |
771 | if (strchr(PL_chopset, *s)) | |
772 | chophere = s + 1; | |
773 | } | |
774 | s++; | |
775 | } | |
776 | itemsize = chophere - item; | |
777 | } | |
778 | break; | |
a0d0e21e | 779 | } |
a0d0e21e LW |
780 | |
781 | case FF_SPACE: | |
782 | arg = fieldsize - itemsize; | |
783 | if (arg) { | |
784 | fieldsize -= arg; | |
785 | while (arg-- > 0) | |
786 | *t++ = ' '; | |
787 | } | |
788 | break; | |
789 | ||
790 | case FF_HALFSPACE: | |
791 | arg = fieldsize - itemsize; | |
792 | if (arg) { | |
793 | arg /= 2; | |
794 | fieldsize -= arg; | |
795 | while (arg-- > 0) | |
796 | *t++ = ' '; | |
797 | } | |
798 | break; | |
799 | ||
800 | case FF_ITEM: | |
8aa7beb6 DM |
801 | to_copy = itemsize; |
802 | source = (U8 *)item; | |
803 | trans = 1; | |
804 | if (item_is_utf8) { | |
805 | /* convert to_copy from chars to bytes */ | |
806 | U8 *s = source; | |
807 | while (to_copy--) | |
808 | s += UTF8SKIP(s); | |
809 | to_copy = s - source; | |
a0d0e21e | 810 | } |
8aa7beb6 | 811 | goto append; |
a0d0e21e LW |
812 | |
813 | case FF_CHOP: | |
5a34cab7 NC |
814 | { |
815 | const char *s = chophere; | |
816 | if (chopspace) { | |
af68e756 | 817 | while (isSPACE(*s)) |
5a34cab7 NC |
818 | s++; |
819 | } | |
820 | sv_chop(sv,s); | |
821 | SvSETMAGIC(sv); | |
822 | break; | |
a0d0e21e | 823 | } |
a0d0e21e | 824 | |
a1b95068 WL |
825 | case FF_LINESNGL: |
826 | chopspace = 0; | |
a0d0e21e | 827 | case FF_LINEGLOB: |
5a34cab7 | 828 | { |
e32383e2 | 829 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 830 | const char *s = item = SvPV_const(sv, len); |
7440a75b | 831 | const char *const send = s + len; |
7440a75b | 832 | |
f3f2f1a3 | 833 | item_is_utf8 = DO_UTF8(sv); |
a1137ee5 | 834 | if (!len) |
7440a75b | 835 | break; |
ea60cfe8 | 836 | trans = 0; |
0d21cefe | 837 | gotsome = TRUE; |
a1137ee5 | 838 | chophere = s + len; |
4ff700b9 DM |
839 | source = (U8 *) s; |
840 | to_copy = len; | |
0d21cefe DM |
841 | while (s < send) { |
842 | if (*s++ == '\n') { | |
843 | if (oneline) { | |
844 | to_copy = s - SvPVX_const(sv) - 1; | |
845 | chophere = s; | |
846 | break; | |
847 | } else { | |
848 | if (s == send) { | |
0d21cefe DM |
849 | to_copy--; |
850 | } else | |
851 | lines++; | |
1bd51a4c | 852 | } |
a0d0e21e | 853 | } |
0d21cefe | 854 | } |
a2c0032b DM |
855 | } |
856 | ||
ea60cfe8 DM |
857 | append: |
858 | /* append to_copy bytes from source to PL_formstring. | |
859 | * item_is_utf8 implies source is utf8. | |
860 | * if trans, translate certain characters during the copy */ | |
a2c0032b DM |
861 | { |
862 | U8 *tmp = NULL; | |
26e935cf | 863 | STRLEN grow = 0; |
0325ce87 DM |
864 | |
865 | SvCUR_set(PL_formtarget, | |
866 | t - SvPVX_const(PL_formtarget)); | |
867 | ||
0d21cefe DM |
868 | if (targ_is_utf8 && !item_is_utf8) { |
869 | source = tmp = bytes_to_utf8(source, &to_copy); | |
0d21cefe DM |
870 | } else { |
871 | if (item_is_utf8 && !targ_is_utf8) { | |
f5ada144 | 872 | U8 *s; |
0d21cefe | 873 | /* Upgrade targ to UTF8, and then we reduce it to |
0325ce87 DM |
874 | a problem we have a simple solution for. |
875 | Don't need get magic. */ | |
0d21cefe | 876 | sv_utf8_upgrade_nomg(PL_formtarget); |
0325ce87 | 877 | targ_is_utf8 = TRUE; |
f5ada144 DM |
878 | /* re-calculate linemark */ |
879 | s = (U8*)SvPVX(PL_formtarget); | |
26e935cf DM |
880 | /* the bytes we initially allocated to append the |
881 | * whole line may have been gobbled up during the | |
882 | * upgrade, so allocate a whole new line's worth | |
883 | * for safety */ | |
884 | grow = linemax; | |
f5ada144 DM |
885 | while (linemark--) |
886 | s += UTF8SKIP(s); | |
887 | linemark = s - (U8*)SvPVX(PL_formtarget); | |
e8e72d41 | 888 | } |
0d21cefe DM |
889 | /* Easy. They agree. */ |
890 | assert (item_is_utf8 == targ_is_utf8); | |
891 | } | |
26e935cf DM |
892 | if (!trans) |
893 | /* @* and ^* are the only things that can exceed | |
894 | * the linemax, so grow by the output size, plus | |
895 | * a whole new form's worth in case of any further | |
896 | * output */ | |
897 | grow = linemax + to_copy; | |
898 | if (grow) | |
899 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + grow + 1); | |
0d21cefe DM |
900 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
901 | ||
902 | Copy(source, t, to_copy, char); | |
ea60cfe8 | 903 | if (trans) { |
8aa7beb6 DM |
904 | /* blank out ~ or control chars, depending on trans. |
905 | * works on bytes not chars, so relies on not | |
906 | * matching utf8 continuation bytes */ | |
ea60cfe8 DM |
907 | U8 *s = (U8*)t; |
908 | U8 *send = s + to_copy; | |
909 | while (s < send) { | |
8aa7beb6 DM |
910 | const int ch = *s; |
911 | if (trans == '~' ? (ch == '~') : | |
912 | #ifdef EBCDIC | |
913 | iscntrl(ch) | |
914 | #else | |
915 | (!(ch & ~31)) | |
916 | #endif | |
917 | ) | |
ea60cfe8 DM |
918 | *s = ' '; |
919 | s++; | |
920 | } | |
921 | } | |
922 | ||
0d21cefe DM |
923 | t += to_copy; |
924 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
a1137ee5 | 925 | if (tmp) |
0d21cefe | 926 | Safefree(tmp); |
5a34cab7 | 927 | break; |
a0d0e21e | 928 | } |
a0d0e21e | 929 | |
a1b95068 WL |
930 | case FF_0DECIMAL: |
931 | arg = *fpc++; | |
932 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d | 933 | fmt = (const char *) |
a701009a | 934 | ((arg & FORM_NUM_POINT) ? |
10edeb5d | 935 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); |
a1b95068 | 936 | #else |
10edeb5d | 937 | fmt = (const char *) |
a701009a | 938 | ((arg & FORM_NUM_POINT) ? |
10edeb5d | 939 | "%#0*.*f" : "%0*.*f"); |
a1b95068 WL |
940 | #endif |
941 | goto ff_dec; | |
a0d0e21e | 942 | case FF_DECIMAL: |
a0d0e21e | 943 | arg = *fpc++; |
65202027 | 944 | #if defined(USE_LONG_DOUBLE) |
10edeb5d | 945 | fmt = (const char *) |
a701009a | 946 | ((arg & FORM_NUM_POINT) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); |
65202027 | 947 | #else |
10edeb5d | 948 | fmt = (const char *) |
a701009a | 949 | ((arg & FORM_NUM_POINT) ? "%#*.*f" : "%*.*f"); |
65202027 | 950 | #endif |
a1b95068 | 951 | ff_dec: |
784707d5 JP |
952 | /* If the field is marked with ^ and the value is undefined, |
953 | blank it out. */ | |
a701009a | 954 | if ((arg & FORM_NUM_BLANK) && !SvOK(sv)) { |
784707d5 JP |
955 | arg = fieldsize; |
956 | while (arg--) | |
957 | *t++ = ' '; | |
958 | break; | |
959 | } | |
960 | gotsome = TRUE; | |
961 | value = SvNV(sv); | |
a1b95068 | 962 | /* overflow evidence */ |
bfed75c6 | 963 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
964 | arg = fieldsize; |
965 | while (arg--) | |
966 | *t++ = '#'; | |
967 | break; | |
968 | } | |
784707d5 JP |
969 | /* Formats aren't yet marked for locales, so assume "yes". */ |
970 | { | |
971 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
a701009a DM |
972 | arg &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
973 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg, value); | |
784707d5 JP |
974 | RESTORE_NUMERIC_STANDARD(); |
975 | } | |
976 | t += fieldsize; | |
977 | break; | |
a1b95068 | 978 | |
a0d0e21e LW |
979 | case FF_NEWLINE: |
980 | f++; | |
f5ada144 | 981 | while (t-- > (SvPVX(PL_formtarget) + linemark) && *t == ' ') ; |
a0d0e21e LW |
982 | t++; |
983 | *t++ = '\n'; | |
984 | break; | |
985 | ||
986 | case FF_BLANK: | |
987 | arg = *fpc++; | |
988 | if (gotsome) { | |
989 | if (arg) { /* repeat until fields exhausted? */ | |
11f9eeaf DM |
990 | fpc--; |
991 | goto end; | |
a0d0e21e LW |
992 | } |
993 | } | |
994 | else { | |
f5ada144 | 995 | t = SvPVX(PL_formtarget) + linemark; |
a0d0e21e LW |
996 | lines--; |
997 | } | |
998 | break; | |
999 | ||
1000 | case FF_MORE: | |
5a34cab7 NC |
1001 | { |
1002 | const char *s = chophere; | |
1003 | const char *send = item + len; | |
1004 | if (chopspace) { | |
af68e756 | 1005 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 1006 | s++; |
a0d0e21e | 1007 | } |
5a34cab7 NC |
1008 | if (s < send) { |
1009 | char *s1; | |
1010 | arg = fieldsize - itemsize; | |
1011 | if (arg) { | |
1012 | fieldsize -= arg; | |
1013 | while (arg-- > 0) | |
1014 | *t++ = ' '; | |
1015 | } | |
1016 | s1 = t - 3; | |
1017 | if (strnEQ(s1," ",3)) { | |
1018 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
1019 | s1--; | |
1020 | } | |
1021 | *s1++ = '.'; | |
1022 | *s1++ = '.'; | |
1023 | *s1++ = '.'; | |
a0d0e21e | 1024 | } |
5a34cab7 | 1025 | break; |
a0d0e21e | 1026 | } |
a0d0e21e | 1027 | case FF_END: |
11f9eeaf | 1028 | end: |
bf2bec63 | 1029 | assert(t < SvPVX_const(PL_formtarget) + SvLEN(PL_formtarget)); |
a0d0e21e | 1030 | *t = '\0'; |
b15aece3 | 1031 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
1032 | if (targ_is_utf8) |
1033 | SvUTF8_on(PL_formtarget); | |
3280af22 | 1034 | FmLINES(PL_formtarget) += lines; |
a0d0e21e | 1035 | SP = ORIGMARK; |
11f9eeaf DM |
1036 | if (fpc[-1] == FF_BLANK) |
1037 | RETURNOP(cLISTOP->op_first); | |
1038 | else | |
1039 | RETPUSHYES; | |
a0d0e21e LW |
1040 | } |
1041 | } | |
1042 | } | |
1043 | ||
1044 | PP(pp_grepstart) | |
1045 | { | |
27da23d5 | 1046 | dVAR; dSP; |
a0d0e21e LW |
1047 | SV *src; |
1048 | ||
3280af22 | 1049 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 1050 | (void)POPMARK; |
54310121 | 1051 | if (GIMME_V == G_SCALAR) |
6e449a3a | 1052 | mXPUSHi(0); |
533c011a | 1053 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 1054 | } |
3280af22 | 1055 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
897d3989 NC |
1056 | Perl_pp_pushmark(aTHX); /* push dst */ |
1057 | Perl_pp_pushmark(aTHX); /* push src */ | |
d343c3ef | 1058 | ENTER_with_name("grep"); /* enter outer scope */ |
a0d0e21e LW |
1059 | |
1060 | SAVETMPS; | |
59f00321 RGS |
1061 | if (PL_op->op_private & OPpGREP_LEX) |
1062 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1063 | else | |
1064 | SAVE_DEFSV; | |
d343c3ef | 1065 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1066 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1067 | |
3280af22 | 1068 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1069 | SvTEMP_off(src); |
59f00321 RGS |
1070 | if (PL_op->op_private & OPpGREP_LEX) |
1071 | PAD_SVl(PL_op->op_targ) = src; | |
1072 | else | |
414bf5ae | 1073 | DEFSV_set(src); |
a0d0e21e LW |
1074 | |
1075 | PUTBACK; | |
533c011a | 1076 | if (PL_op->op_type == OP_MAPSTART) |
897d3989 | 1077 | Perl_pp_pushmark(aTHX); /* push top */ |
533c011a | 1078 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1079 | } |
1080 | ||
a0d0e21e LW |
1081 | PP(pp_mapwhile) |
1082 | { | |
27da23d5 | 1083 | dVAR; dSP; |
f54cb97a | 1084 | const I32 gimme = GIMME_V; |
544f3153 | 1085 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1086 | I32 count; |
1087 | I32 shift; | |
1088 | SV** src; | |
ac27b0f5 | 1089 | SV** dst; |
a0d0e21e | 1090 | |
544f3153 | 1091 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1092 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1093 | |
1094 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1095 | if (items && gimme != G_VOID) { |
544f3153 GS |
1096 | /* might need to make room back there first */ |
1097 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1098 | /* XXX this implementation is very pessimal because the stack | |
1099 | * is repeatedly extended for every set of items. Is possible | |
1100 | * to do this without any stack extension or copying at all | |
1101 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1102 | * (like foreach does). --gsar */ |
544f3153 GS |
1103 | |
1104 | /* everything in the stack after the destination list moves | |
1105 | * towards the end the stack by the amount of room needed */ | |
1106 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1107 | ||
1108 | /* items to shift up (accounting for the moved source pointer) */ | |
1109 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1110 | |
1111 | /* This optimization is by Ben Tilly and it does | |
1112 | * things differently from what Sarathy (gsar) | |
1113 | * is describing. The downside of this optimization is | |
1114 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1115 | * to the Perl stack, but on the other hand this | |
1116 | * shouldn't be a problem. If Sarathy's idea gets | |
1117 | * implemented, this optimization should become | |
1118 | * irrelevant. --jhi */ | |
1119 | if (shift < count) | |
1120 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1121 | |
924508f0 GS |
1122 | EXTEND(SP,shift); |
1123 | src = SP; | |
1124 | dst = (SP += shift); | |
3280af22 NIS |
1125 | PL_markstack_ptr[-1] += shift; |
1126 | *PL_markstack_ptr += shift; | |
544f3153 | 1127 | while (count--) |
a0d0e21e LW |
1128 | *dst-- = *src--; |
1129 | } | |
544f3153 | 1130 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1131 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 | 1132 | if (gimme == G_ARRAY) { |
b2a2a901 DM |
1133 | /* add returned items to the collection (making mortal copies |
1134 | * if necessary), then clear the current temps stack frame | |
1135 | * *except* for those items. We do this splicing the items | |
1136 | * into the start of the tmps frame (so some items may be on | |
59d53fd6 | 1137 | * the tmps stack twice), then moving PL_tmps_floor above |
b2a2a901 DM |
1138 | * them, then freeing the frame. That way, the only tmps that |
1139 | * accumulate over iterations are the return values for map. | |
1140 | * We have to do to this way so that everything gets correctly | |
1141 | * freed if we die during the map. | |
1142 | */ | |
1143 | I32 tmpsbase; | |
1144 | I32 i = items; | |
1145 | /* make space for the slice */ | |
1146 | EXTEND_MORTAL(items); | |
1147 | tmpsbase = PL_tmps_floor + 1; | |
1148 | Move(PL_tmps_stack + tmpsbase, | |
1149 | PL_tmps_stack + tmpsbase + items, | |
1150 | PL_tmps_ix - PL_tmps_floor, | |
1151 | SV*); | |
1152 | PL_tmps_ix += items; | |
1153 | ||
1154 | while (i-- > 0) { | |
1155 | SV *sv = POPs; | |
1156 | if (!SvTEMP(sv)) | |
1157 | sv = sv_mortalcopy(sv); | |
1158 | *dst-- = sv; | |
1159 | PL_tmps_stack[tmpsbase++] = SvREFCNT_inc_simple(sv); | |
1160 | } | |
1161 | /* clear the stack frame except for the items */ | |
1162 | PL_tmps_floor += items; | |
1163 | FREETMPS; | |
1164 | /* FREETMPS may have cleared the TEMP flag on some of the items */ | |
1165 | i = items; | |
1166 | while (i-- > 0) | |
1167 | SvTEMP_on(PL_tmps_stack[--tmpsbase]); | |
22023b26 | 1168 | } |
bfed75c6 | 1169 | else { |
22023b26 TP |
1170 | /* scalar context: we don't care about which values map returns |
1171 | * (we use undef here). And so we certainly don't want to do mortal | |
1172 | * copies of meaningless values. */ | |
1173 | while (items-- > 0) { | |
b988aa42 | 1174 | (void)POPs; |
22023b26 TP |
1175 | *dst-- = &PL_sv_undef; |
1176 | } | |
b2a2a901 | 1177 | FREETMPS; |
22023b26 | 1178 | } |
a0d0e21e | 1179 | } |
b2a2a901 DM |
1180 | else { |
1181 | FREETMPS; | |
1182 | } | |
d343c3ef | 1183 | LEAVE_with_name("grep_item"); /* exit inner scope */ |
a0d0e21e LW |
1184 | |
1185 | /* All done yet? */ | |
3280af22 | 1186 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1187 | |
1188 | (void)POPMARK; /* pop top */ | |
d343c3ef | 1189 | LEAVE_with_name("grep"); /* exit outer scope */ |
a0d0e21e | 1190 | (void)POPMARK; /* pop src */ |
3280af22 | 1191 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1192 | (void)POPMARK; /* pop dst */ |
3280af22 | 1193 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1194 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1195 | if (PL_op->op_private & OPpGREP_LEX) { |
1196 | SV* sv = sv_newmortal(); | |
1197 | sv_setiv(sv, items); | |
1198 | PUSHs(sv); | |
1199 | } | |
1200 | else { | |
1201 | dTARGET; | |
1202 | XPUSHi(items); | |
1203 | } | |
a0d0e21e | 1204 | } |
54310121 | 1205 | else if (gimme == G_ARRAY) |
1206 | SP += items; | |
a0d0e21e LW |
1207 | RETURN; |
1208 | } | |
1209 | else { | |
1210 | SV *src; | |
1211 | ||
d343c3ef | 1212 | ENTER_with_name("grep_item"); /* enter inner scope */ |
7766f137 | 1213 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1214 | |
544f3153 | 1215 | /* set $_ to the new source item */ |
3280af22 | 1216 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1217 | SvTEMP_off(src); |
59f00321 RGS |
1218 | if (PL_op->op_private & OPpGREP_LEX) |
1219 | PAD_SVl(PL_op->op_targ) = src; | |
1220 | else | |
414bf5ae | 1221 | DEFSV_set(src); |
a0d0e21e LW |
1222 | |
1223 | RETURNOP(cLOGOP->op_other); | |
1224 | } | |
1225 | } | |
1226 | ||
a0d0e21e LW |
1227 | /* Range stuff. */ |
1228 | ||
1229 | PP(pp_range) | |
1230 | { | |
97aff369 | 1231 | dVAR; |
a0d0e21e | 1232 | if (GIMME == G_ARRAY) |
1a67a97c | 1233 | return NORMAL; |
538573f7 | 1234 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1235 | return cLOGOP->op_other; |
538573f7 | 1236 | else |
1a67a97c | 1237 | return NORMAL; |
a0d0e21e LW |
1238 | } |
1239 | ||
1240 | PP(pp_flip) | |
1241 | { | |
97aff369 | 1242 | dVAR; |
39644a26 | 1243 | dSP; |
a0d0e21e LW |
1244 | |
1245 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1246 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1247 | } |
1248 | else { | |
1249 | dTOPss; | |
44f8325f | 1250 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1251 | int flip = 0; |
790090df | 1252 | |
bfed75c6 | 1253 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1254 | if (GvIO(PL_last_in_gv)) { |
1255 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1256 | } | |
1257 | else { | |
fafc274c | 1258 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1259 | if (gv && GvSV(gv)) |
1260 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1261 | } |
bfed75c6 AL |
1262 | } else { |
1263 | flip = SvTRUE(sv); | |
1264 | } | |
1265 | if (flip) { | |
a0d0e21e | 1266 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1267 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1268 | sv_setiv(targ, 1); |
3e3baf6d | 1269 | SETs(targ); |
a0d0e21e LW |
1270 | RETURN; |
1271 | } | |
1272 | else { | |
1273 | sv_setiv(targ, 0); | |
924508f0 | 1274 | SP--; |
1a67a97c | 1275 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1276 | } |
1277 | } | |
76f68e9b | 1278 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1279 | SETs(targ); |
1280 | RETURN; | |
1281 | } | |
1282 | } | |
1283 | ||
8e9bbdb9 RGS |
1284 | /* This code tries to decide if "$left .. $right" should use the |
1285 | magical string increment, or if the range is numeric (we make | |
1286 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1287 | ||
1288 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1289 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1290 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1291 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1292 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1293 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1294 | |
a0d0e21e LW |
1295 | PP(pp_flop) |
1296 | { | |
97aff369 | 1297 | dVAR; dSP; |
a0d0e21e LW |
1298 | |
1299 | if (GIMME == G_ARRAY) { | |
1300 | dPOPPOPssrl; | |
86cb7173 | 1301 | |
5b295bef RD |
1302 | SvGETMAGIC(left); |
1303 | SvGETMAGIC(right); | |
a0d0e21e | 1304 | |
8e9bbdb9 | 1305 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1306 | register IV i, j; |
1307 | IV max; | |
4fe3f0fa MHM |
1308 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1309 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1310 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1311 | i = SvIV(left); |
1312 | max = SvIV(right); | |
bbce6d69 | 1313 | if (max >= i) { |
c1ab3db2 AK |
1314 | j = max - i + 1; |
1315 | EXTEND_MORTAL(j); | |
1316 | EXTEND(SP, j); | |
bbce6d69 | 1317 | } |
c1ab3db2 AK |
1318 | else |
1319 | j = 0; | |
1320 | while (j--) { | |
901017d6 | 1321 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1322 | PUSHs(sv); |
1323 | } | |
1324 | } | |
1325 | else { | |
44f8325f | 1326 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1327 | STRLEN len; |
823a54a3 | 1328 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1329 | |
901017d6 | 1330 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1331 | SvPV_force_nolen(sv); |
89ea2908 | 1332 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1333 | XPUSHs(sv); |
b15aece3 | 1334 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1335 | break; |
a0d0e21e LW |
1336 | sv = sv_2mortal(newSVsv(sv)); |
1337 | sv_inc(sv); | |
1338 | } | |
a0d0e21e LW |
1339 | } |
1340 | } | |
1341 | else { | |
1342 | dTOPss; | |
901017d6 | 1343 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1344 | int flop = 0; |
a0d0e21e | 1345 | sv_inc(targ); |
4e3399f9 YST |
1346 | |
1347 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1348 | if (GvIO(PL_last_in_gv)) { | |
1349 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1350 | } | |
1351 | else { | |
fafc274c | 1352 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1353 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1354 | } | |
1355 | } | |
1356 | else { | |
1357 | flop = SvTRUE(sv); | |
1358 | } | |
1359 | ||
1360 | if (flop) { | |
a0d0e21e | 1361 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1362 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1363 | } |
1364 | SETs(targ); | |
1365 | } | |
1366 | ||
1367 | RETURN; | |
1368 | } | |
1369 | ||
1370 | /* Control. */ | |
1371 | ||
27da23d5 | 1372 | static const char * const context_name[] = { |
515afda2 | 1373 | "pseudo-block", |
f31522f3 | 1374 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1375 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1376 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1377 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1378 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1379 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1380 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1381 | "subroutine", |
76753e7f | 1382 | "format", |
515afda2 | 1383 | "eval", |
515afda2 | 1384 | "substitution", |
515afda2 NC |
1385 | }; |
1386 | ||
76e3520e | 1387 | STATIC I32 |
06b5626a | 1388 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1389 | { |
97aff369 | 1390 | dVAR; |
a0d0e21e | 1391 | register I32 i; |
a0d0e21e | 1392 | |
7918f24d NC |
1393 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1394 | ||
a0d0e21e | 1395 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1396 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1397 | switch (CxTYPE(cx)) { |
a0d0e21e | 1398 | case CXt_SUBST: |
a0d0e21e | 1399 | case CXt_SUB: |
7766f137 | 1400 | case CXt_FORMAT: |
a0d0e21e | 1401 | case CXt_EVAL: |
0a753a76 | 1402 | case CXt_NULL: |
a2a5de95 NC |
1403 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1404 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1405 | if (CxTYPE(cx) == CXt_NULL) |
1406 | return -1; | |
1407 | break; | |
c6fdafd0 | 1408 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1409 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1410 | case CXt_LOOP_FOR: |
1411 | case CXt_LOOP_PLAIN: | |
7e8f1eac AD |
1412 | { |
1413 | const char *cx_label = CxLABEL(cx); | |
1414 | if (!cx_label || strNE(label, cx_label) ) { | |
1c98cc53 | 1415 | DEBUG_l(Perl_deb(aTHX_ "(poptolabel(): skipping label at cx=%ld %s)\n", |
7e8f1eac | 1416 | (long)i, cx_label)); |
a0d0e21e LW |
1417 | continue; |
1418 | } | |
1c98cc53 | 1419 | DEBUG_l( Perl_deb(aTHX_ "(poptolabel(): found label at cx=%ld %s)\n", (long)i, label)); |
a0d0e21e | 1420 | return i; |
7e8f1eac | 1421 | } |
a0d0e21e LW |
1422 | } |
1423 | } | |
1424 | return i; | |
1425 | } | |
1426 | ||
0d863452 RH |
1427 | |
1428 | ||
e50aee73 | 1429 | I32 |
864dbfa3 | 1430 | Perl_dowantarray(pTHX) |
e50aee73 | 1431 | { |
97aff369 | 1432 | dVAR; |
f54cb97a | 1433 | const I32 gimme = block_gimme(); |
54310121 | 1434 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1435 | } | |
1436 | ||
1437 | I32 | |
864dbfa3 | 1438 | Perl_block_gimme(pTHX) |
54310121 | 1439 | { |
97aff369 | 1440 | dVAR; |
06b5626a | 1441 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1442 | if (cxix < 0) |
46fc3d4c | 1443 | return G_VOID; |
e50aee73 | 1444 | |
54310121 | 1445 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1446 | case G_VOID: |
1447 | return G_VOID; | |
54310121 | 1448 | case G_SCALAR: |
e50aee73 | 1449 | return G_SCALAR; |
54310121 | 1450 | case G_ARRAY: |
1451 | return G_ARRAY; | |
1452 | default: | |
cea2e8a9 | 1453 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1454 | /* NOTREACHED */ |
1455 | return 0; | |
54310121 | 1456 | } |
e50aee73 AD |
1457 | } |
1458 | ||
78f9721b SM |
1459 | I32 |
1460 | Perl_is_lvalue_sub(pTHX) | |
1461 | { | |
97aff369 | 1462 | dVAR; |
06b5626a | 1463 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1464 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1465 | ||
bafb2adc NC |
1466 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1467 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1468 | else |
1469 | return 0; | |
1470 | } | |
1471 | ||
777d9014 FC |
1472 | /* only used by PUSHSUB */ |
1473 | I32 | |
1474 | Perl_was_lvalue_sub(pTHX) | |
1475 | { | |
1476 | dVAR; | |
1477 | const I32 cxix = dopoptosub(cxstack_ix-1); | |
1478 | assert(cxix >= 0); /* We should only be called from inside subs */ | |
1479 | ||
1480 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) | |
1481 | return CxLVAL(cxstack + cxix); | |
1482 | else | |
1483 | return 0; | |
1484 | } | |
1485 | ||
76e3520e | 1486 | STATIC I32 |
901017d6 | 1487 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1488 | { |
97aff369 | 1489 | dVAR; |
a0d0e21e | 1490 | I32 i; |
7918f24d NC |
1491 | |
1492 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1493 | ||
a0d0e21e | 1494 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1495 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1496 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1497 | default: |
1498 | continue; | |
1499 | case CXt_EVAL: | |
1500 | case CXt_SUB: | |
7766f137 | 1501 | case CXt_FORMAT: |
1c98cc53 | 1502 | DEBUG_l( Perl_deb(aTHX_ "(dopoptosub_at(): found sub at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1503 | return i; |
1504 | } | |
1505 | } | |
1506 | return i; | |
1507 | } | |
1508 | ||
76e3520e | 1509 | STATIC I32 |
cea2e8a9 | 1510 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1511 | { |
97aff369 | 1512 | dVAR; |
a0d0e21e | 1513 | I32 i; |
a0d0e21e | 1514 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1515 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1516 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1517 | default: |
1518 | continue; | |
1519 | case CXt_EVAL: | |
1c98cc53 | 1520 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoeval(): found eval at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1521 | return i; |
1522 | } | |
1523 | } | |
1524 | return i; | |
1525 | } | |
1526 | ||
76e3520e | 1527 | STATIC I32 |
cea2e8a9 | 1528 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1529 | { |
97aff369 | 1530 | dVAR; |
a0d0e21e | 1531 | I32 i; |
a0d0e21e | 1532 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1533 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1534 | switch (CxTYPE(cx)) { |
a0d0e21e | 1535 | case CXt_SUBST: |
a0d0e21e | 1536 | case CXt_SUB: |
7766f137 | 1537 | case CXt_FORMAT: |
a0d0e21e | 1538 | case CXt_EVAL: |
0a753a76 | 1539 | case CXt_NULL: |
a2a5de95 NC |
1540 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1541 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1542 | if ((CxTYPE(cx)) == CXt_NULL) |
1543 | return -1; | |
1544 | break; | |
c6fdafd0 | 1545 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1546 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1547 | case CXt_LOOP_FOR: |
1548 | case CXt_LOOP_PLAIN: | |
1c98cc53 | 1549 | DEBUG_l( Perl_deb(aTHX_ "(dopoptoloop(): found loop at cx=%ld)\n", (long)i)); |
a0d0e21e LW |
1550 | return i; |
1551 | } | |
1552 | } | |
1553 | return i; | |
1554 | } | |
1555 | ||
0d863452 RH |
1556 | STATIC I32 |
1557 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1558 | { | |
97aff369 | 1559 | dVAR; |
0d863452 RH |
1560 | I32 i; |
1561 | for (i = startingblock; i >= 0; i--) { | |
1562 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1563 | switch (CxTYPE(cx)) { | |
1564 | default: | |
1565 | continue; | |
1566 | case CXt_GIVEN: | |
1c98cc53 | 1567 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found given at cx=%ld)\n", (long)i)); |
0d863452 | 1568 | return i; |
3b719c58 NC |
1569 | case CXt_LOOP_PLAIN: |
1570 | assert(!CxFOREACHDEF(cx)); | |
1571 | break; | |
c6fdafd0 | 1572 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1573 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1574 | case CXt_LOOP_FOR: |
0d863452 | 1575 | if (CxFOREACHDEF(cx)) { |
1c98cc53 | 1576 | DEBUG_l( Perl_deb(aTHX_ "(dopoptogiven(): found foreach at cx=%ld)\n", (long)i)); |
0d863452 RH |
1577 | return i; |
1578 | } | |
1579 | } | |
1580 | } | |
1581 | return i; | |
1582 | } | |
1583 | ||
1584 | STATIC I32 | |
1585 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1586 | { | |
97aff369 | 1587 | dVAR; |
0d863452 RH |
1588 | I32 i; |
1589 | for (i = startingblock; i >= 0; i--) { | |
1590 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1591 | switch (CxTYPE(cx)) { | |
1592 | default: | |
1593 | continue; | |
1594 | case CXt_WHEN: | |
1c98cc53 | 1595 | DEBUG_l( Perl_deb(aTHX_ "(dopoptowhen(): found when at cx=%ld)\n", (long)i)); |
0d863452 RH |
1596 | return i; |
1597 | } | |
1598 | } | |
1599 | return i; | |
1600 | } | |
1601 | ||
a0d0e21e | 1602 | void |
864dbfa3 | 1603 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1604 | { |
97aff369 | 1605 | dVAR; |
a0d0e21e LW |
1606 | I32 optype; |
1607 | ||
f144f1e3 DM |
1608 | if (!PL_curstackinfo) /* can happen if die during thread cloning */ |
1609 | return; | |
1610 | ||
a0d0e21e | 1611 | while (cxstack_ix > cxix) { |
b0d9ce38 | 1612 | SV *sv; |
06b5626a | 1613 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1c98cc53 | 1614 | DEBUG_CX("UNWIND"); \ |
a0d0e21e | 1615 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1616 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1617 | case CXt_SUBST: |
1618 | POPSUBST(cx); | |
1619 | continue; /* not break */ | |
a0d0e21e | 1620 | case CXt_SUB: |
b0d9ce38 GS |
1621 | POPSUB(cx,sv); |
1622 | LEAVESUB(sv); | |
a0d0e21e LW |
1623 | break; |
1624 | case CXt_EVAL: | |
1625 | POPEVAL(cx); | |
1626 | break; | |
c6fdafd0 | 1627 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1628 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1629 | case CXt_LOOP_FOR: |
1630 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1631 | POPLOOP(cx); |
1632 | break; | |
0a753a76 | 1633 | case CXt_NULL: |
a0d0e21e | 1634 | break; |
7766f137 GS |
1635 | case CXt_FORMAT: |
1636 | POPFORMAT(cx); | |
1637 | break; | |
a0d0e21e | 1638 | } |
c90c0ff4 | 1639 | cxstack_ix--; |
a0d0e21e | 1640 | } |
1b6737cc | 1641 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1642 | } |
1643 | ||
5a844595 GS |
1644 | void |
1645 | Perl_qerror(pTHX_ SV *err) | |
1646 | { | |
97aff369 | 1647 | dVAR; |
7918f24d NC |
1648 | |
1649 | PERL_ARGS_ASSERT_QERROR; | |
1650 | ||
6b2fb389 DM |
1651 | if (PL_in_eval) { |
1652 | if (PL_in_eval & EVAL_KEEPERR) { | |
1653 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", | |
1654 | SvPV_nolen_const(err)); | |
1655 | } | |
1656 | else | |
1657 | sv_catsv(ERRSV, err); | |
1658 | } | |
5a844595 GS |
1659 | else if (PL_errors) |
1660 | sv_catsv(PL_errors, err); | |
1661 | else | |
be2597df | 1662 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1663 | if (PL_parser) |
1664 | ++PL_parser->error_count; | |
5a844595 GS |
1665 | } |
1666 | ||
bb4c52e0 | 1667 | void |
c5df3096 | 1668 | Perl_die_unwind(pTHX_ SV *msv) |
a0d0e21e | 1669 | { |
27da23d5 | 1670 | dVAR; |
c5df3096 | 1671 | SV *exceptsv = sv_mortalcopy(msv); |
96d9b9cd | 1672 | U8 in_eval = PL_in_eval; |
c5df3096 | 1673 | PERL_ARGS_ASSERT_DIE_UNWIND; |
87582a92 | 1674 | |
96d9b9cd | 1675 | if (in_eval) { |
a0d0e21e | 1676 | I32 cxix; |
a0d0e21e | 1677 | I32 gimme; |
a0d0e21e | 1678 | |
22a30693 Z |
1679 | /* |
1680 | * Historically, perl used to set ERRSV ($@) early in the die | |
1681 | * process and rely on it not getting clobbered during unwinding. | |
1682 | * That sucked, because it was liable to get clobbered, so the | |
1683 | * setting of ERRSV used to emit the exception from eval{} has | |
1684 | * been moved to much later, after unwinding (see just before | |
1685 | * JMPENV_JUMP below). However, some modules were relying on the | |
1686 | * early setting, by examining $@ during unwinding to use it as | |
1687 | * a flag indicating whether the current unwinding was caused by | |
1688 | * an exception. It was never a reliable flag for that purpose, | |
1689 | * being totally open to false positives even without actual | |
1690 | * clobberage, but was useful enough for production code to | |
1691 | * semantically rely on it. | |
1692 | * | |
1693 | * We'd like to have a proper introspective interface that | |
1694 | * explicitly describes the reason for whatever unwinding | |
1695 | * operations are currently in progress, so that those modules | |
1696 | * work reliably and $@ isn't further overloaded. But we don't | |
1697 | * have one yet. In its absence, as a stopgap measure, ERRSV is | |
1698 | * now *additionally* set here, before unwinding, to serve as the | |
1699 | * (unreliable) flag that it used to. | |
1700 | * | |
1701 | * This behaviour is temporary, and should be removed when a | |
1702 | * proper way to detect exceptional unwinding has been developed. | |
1703 | * As of 2010-12, the authors of modules relying on the hack | |
1704 | * are aware of the issue, because the modules failed on | |
1705 | * perls 5.13.{1..7} which had late setting of $@ without this | |
1706 | * early-setting hack. | |
1707 | */ | |
1708 | if (!(in_eval & EVAL_KEEPERR)) { | |
1709 | SvTEMP_off(exceptsv); | |
1710 | sv_setsv(ERRSV, exceptsv); | |
1711 | } | |
1712 | ||
5a844595 GS |
1713 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1714 | && PL_curstackinfo->si_prev) | |
1715 | { | |
bac4b2ad | 1716 | dounwind(-1); |
d3acc0f7 | 1717 | POPSTACK; |
bac4b2ad | 1718 | } |
e336de0d | 1719 | |
a0d0e21e LW |
1720 | if (cxix >= 0) { |
1721 | I32 optype; | |
b6494f15 | 1722 | SV *namesv; |
35a4481c | 1723 | register PERL_CONTEXT *cx; |
901017d6 | 1724 | SV **newsp; |
8f89e5a9 Z |
1725 | COP *oldcop; |
1726 | JMPENV *restartjmpenv; | |
1727 | OP *restartop; | |
a0d0e21e LW |
1728 | |
1729 | if (cxix < cxstack_ix) | |
1730 | dounwind(cxix); | |
1731 | ||
3280af22 | 1732 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1733 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 | 1734 | STRLEN msglen; |
96d9b9cd | 1735 | const char* message = SvPVx_const(exceptsv, msglen); |
10edeb5d | 1736 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1737 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1738 | my_exit(1); |
1739 | } | |
1740 | POPEVAL(cx); | |
b6494f15 | 1741 | namesv = cx->blk_eval.old_namesv; |
8f89e5a9 Z |
1742 | oldcop = cx->blk_oldcop; |
1743 | restartjmpenv = cx->blk_eval.cur_top_env; | |
1744 | restartop = cx->blk_eval.retop; | |
a0d0e21e LW |
1745 | |
1746 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1747 | *++newsp = &PL_sv_undef; |
1748 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1749 | |
1750 | LEAVE; | |
748a9306 | 1751 | |
7fb6a879 GS |
1752 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1753 | * XXX it might be better to find a way to avoid messing with | |
1754 | * PL_curcop in save_re_context() instead, but this is a more | |
1755 | * minimal fix --GSAR */ | |
8f89e5a9 | 1756 | PL_curcop = oldcop; |
7fb6a879 | 1757 | |
7a2e2cd6 | 1758 | if (optype == OP_REQUIRE) { |
96d9b9cd | 1759 | const char* const msg = SvPVx_nolen_const(exceptsv); |
b6494f15 VP |
1760 | (void)hv_store(GvHVn(PL_incgv), |
1761 | SvPVX_const(namesv), SvCUR(namesv), | |
27bcc0a7 | 1762 | &PL_sv_undef, 0); |
27e90453 DM |
1763 | /* note that unlike pp_entereval, pp_require isn't |
1764 | * supposed to trap errors. So now that we've popped the | |
1765 | * EVAL that pp_require pushed, and processed the error | |
1766 | * message, rethrow the error */ | |
9fed9930 NC |
1767 | Perl_croak(aTHX_ "%sCompilation failed in require", |
1768 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1769 | } |
c5df3096 | 1770 | if (in_eval & EVAL_KEEPERR) { |
7ce09284 Z |
1771 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "\t(in cleanup) %s", |
1772 | SvPV_nolen_const(exceptsv)); | |
96d9b9cd Z |
1773 | } |
1774 | else { | |
1775 | sv_setsv(ERRSV, exceptsv); | |
1776 | } | |
8f89e5a9 Z |
1777 | PL_restartjmpenv = restartjmpenv; |
1778 | PL_restartop = restartop; | |
bb4c52e0 GG |
1779 | JMPENV_JUMP(3); |
1780 | /* NOTREACHED */ | |
a0d0e21e LW |
1781 | } |
1782 | } | |
87582a92 | 1783 | |
96d9b9cd | 1784 | write_to_stderr(exceptsv); |
f86702cc | 1785 | my_failure_exit(); |
1786 | /* NOTREACHED */ | |
a0d0e21e LW |
1787 | } |
1788 | ||
1789 | PP(pp_xor) | |
1790 | { | |
97aff369 | 1791 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1792 | if (SvTRUE(left) != SvTRUE(right)) |
1793 | RETSETYES; | |
1794 | else | |
1795 | RETSETNO; | |
1796 | } | |
1797 | ||
8dff4fc5 BM |
1798 | /* |
1799 | =for apidoc caller_cx | |
1800 | ||
1801 | The XSUB-writer's equivalent of L<caller()|perlfunc/caller>. The | |
1802 | returned C<PERL_CONTEXT> structure can be interrogated to find all the | |
1803 | information returned to Perl by C<caller>. Note that XSUBs don't get a | |
1804 | stack frame, so C<caller_cx(0, NULL)> will return information for the | |
1805 | immediately-surrounding Perl code. | |
1806 | ||
1807 | This function skips over the automatic calls to C<&DB::sub> made on the | |
1808 | behalf of the debugger. If the stack frame requested was a sub called by | |
1809 | C<DB::sub>, the return value will be the frame for the call to | |
1810 | C<DB::sub>, since that has the correct line number/etc. for the call | |
1811 | site. If I<dbcxp> is non-C<NULL>, it will be set to a pointer to the | |
1812 | frame for the sub call itself. | |
1813 | ||
1814 | =cut | |
1815 | */ | |
1816 | ||
1817 | const PERL_CONTEXT * | |
1818 | Perl_caller_cx(pTHX_ I32 count, const PERL_CONTEXT **dbcxp) | |
a0d0e21e | 1819 | { |
a0d0e21e | 1820 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1821 | register const PERL_CONTEXT *cx; |
1822 | register const PERL_CONTEXT *ccstack = cxstack; | |
1823 | const PERL_SI *top_si = PL_curstackinfo; | |
27d41816 | 1824 | |
a0d0e21e | 1825 | for (;;) { |
2c375eb9 GS |
1826 | /* we may be in a higher stacklevel, so dig down deeper */ |
1827 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1828 | top_si = top_si->si_prev; | |
1829 | ccstack = top_si->si_cxstack; | |
1830 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1831 | } | |
8dff4fc5 BM |
1832 | if (cxix < 0) |
1833 | return NULL; | |
f2a7f298 DG |
1834 | /* caller() should not report the automatic calls to &DB::sub */ |
1835 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1836 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1837 | count++; |
1838 | if (!count--) | |
1839 | break; | |
2c375eb9 | 1840 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1841 | } |
2c375eb9 GS |
1842 | |
1843 | cx = &ccstack[cxix]; | |
8dff4fc5 BM |
1844 | if (dbcxp) *dbcxp = cx; |
1845 | ||
7766f137 | 1846 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1847 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1848 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1849 | field below is defined for any cx. */ |
f2a7f298 DG |
1850 | /* caller() should not report the automatic calls to &DB::sub */ |
1851 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1852 | cx = &ccstack[dbcxix]; |
06a5b730 | 1853 | } |
1854 | ||
8dff4fc5 BM |
1855 | return cx; |
1856 | } | |
1857 | ||
1858 | PP(pp_caller) | |
1859 | { | |
1860 | dVAR; | |
1861 | dSP; | |
1862 | register const PERL_CONTEXT *cx; | |
1863 | const PERL_CONTEXT *dbcx; | |
1864 | I32 gimme; | |
1865 | const char *stashname; | |
1866 | I32 count = 0; | |
1867 | ||
1868 | if (MAXARG) | |
1869 | count = POPi; | |
1870 | ||
1871 | cx = caller_cx(count, &dbcx); | |
1872 | if (!cx) { | |
1873 | if (GIMME != G_ARRAY) { | |
1874 | EXTEND(SP, 1); | |
1875 | RETPUSHUNDEF; | |
1876 | } | |
1877 | RETURN; | |
1878 | } | |
1879 | ||
ed094faf | 1880 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1881 | if (GIMME != G_ARRAY) { |
27d41816 | 1882 | EXTEND(SP, 1); |
ed094faf | 1883 | if (!stashname) |
3280af22 | 1884 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1885 | else { |
1886 | dTARGET; | |
ed094faf | 1887 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1888 | PUSHs(TARG); |
1889 | } | |
a0d0e21e LW |
1890 | RETURN; |
1891 | } | |
a0d0e21e | 1892 | |
b3ca2e83 | 1893 | EXTEND(SP, 11); |
27d41816 | 1894 | |
ed094faf | 1895 | if (!stashname) |
3280af22 | 1896 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1897 | else |
6e449a3a MHM |
1898 | mPUSHs(newSVpv(stashname, 0)); |
1899 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1900 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1901 | if (!MAXARG) |
1902 | RETURN; | |
7766f137 | 1903 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
8dff4fc5 | 1904 | GV * const cvgv = CvGV(dbcx->blk_sub.cv); |
7766f137 | 1905 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1906 | if (isGV(cvgv)) { |
561b68a9 | 1907 | SV * const sv = newSV(0); |
c445ea15 | 1908 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1909 | mPUSHs(sv); |
bf38a478 | 1910 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1911 | } |
1912 | else { | |
84bafc02 | 1913 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1914 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1915 | } |
a0d0e21e LW |
1916 | } |
1917 | else { | |
84bafc02 | 1918 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1919 | mPUSHi(0); |
a0d0e21e | 1920 | } |
54310121 | 1921 | gimme = (I32)cx->blk_gimme; |
1922 | if (gimme == G_VOID) | |
3280af22 | 1923 | PUSHs(&PL_sv_undef); |
54310121 | 1924 | else |
98625aca | 1925 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1926 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1927 | /* eval STRING */ |
85a64632 | 1928 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1929 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1930 | PUSHs(&PL_sv_no); |
0f79a09d | 1931 | } |
811a4de9 | 1932 | /* require */ |
0f79a09d | 1933 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1934 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1935 | PUSHs(&PL_sv_yes); |
06a5b730 | 1936 | } |
811a4de9 GS |
1937 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1938 | else { | |
1939 | PUSHs(&PL_sv_undef); | |
1940 | PUSHs(&PL_sv_undef); | |
1941 | } | |
4633a7c4 | 1942 | } |
a682de96 GS |
1943 | else { |
1944 | PUSHs(&PL_sv_undef); | |
1945 | PUSHs(&PL_sv_undef); | |
1946 | } | |
bafb2adc | 1947 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1948 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1949 | { |
66a1b24b AL |
1950 | AV * const ary = cx->blk_sub.argarray; |
1951 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1952 | |
5b235299 NC |
1953 | if (!PL_dbargs) |
1954 | Perl_init_dbargs(aTHX); | |
a0d0e21e | 1955 | |
3280af22 NIS |
1956 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1957 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1958 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1959 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1960 | } |
f3aa04c2 GS |
1961 | /* XXX only hints propagated via op_private are currently |
1962 | * visible (others are not easily accessible, since they | |
1963 | * use the global PL_hints) */ | |
6e449a3a | 1964 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1965 | { |
1966 | SV * mask ; | |
72dc9ed5 | 1967 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1968 | |
ac27b0f5 | 1969 | if (old_warnings == pWARN_NONE || |
114bafba | 1970 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1971 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1972 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1973 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1974 | /* Get the bit mask for $warnings::Bits{all}, because | |
1975 | * it could have been extended by warnings::register */ | |
1976 | SV **bits_all; | |
6673a63c | 1977 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1978 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1979 | mask = newSVsv(*bits_all); |
1980 | } | |
1981 | else { | |
1982 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1983 | } | |
1984 | } | |
e476b1b5 | 1985 | else |
72dc9ed5 | 1986 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1987 | mPUSHs(mask); |
e476b1b5 | 1988 | } |
b3ca2e83 | 1989 | |
c28fe1ec | 1990 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
20439bc7 | 1991 | sv_2mortal(newRV_noinc(MUTABLE_SV(cop_hints_2hv(cx->blk_oldcop, 0)))) |
b3ca2e83 | 1992 | : &PL_sv_undef); |
a0d0e21e LW |
1993 | RETURN; |
1994 | } | |
1995 | ||
a0d0e21e LW |
1996 | PP(pp_reset) |
1997 | { | |
97aff369 | 1998 | dVAR; |
39644a26 | 1999 | dSP; |
10edeb5d | 2000 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 2001 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 2002 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
2003 | RETURN; |
2004 | } | |
2005 | ||
dd2155a4 DM |
2006 | /* like pp_nextstate, but used instead when the debugger is active */ |
2007 | ||
a0d0e21e LW |
2008 | PP(pp_dbstate) |
2009 | { | |
27da23d5 | 2010 | dVAR; |
533c011a | 2011 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 2012 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 2013 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
2014 | FREETMPS; |
2015 | ||
f410a211 NC |
2016 | PERL_ASYNC_CHECK(); |
2017 | ||
5df8de69 DM |
2018 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
2019 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 2020 | { |
39644a26 | 2021 | dSP; |
c09156bb | 2022 | register PERL_CONTEXT *cx; |
f54cb97a | 2023 | const I32 gimme = G_ARRAY; |
eb160463 | 2024 | U8 hasargs; |
0bd48802 AL |
2025 | GV * const gv = PL_DBgv; |
2026 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 2027 | |
a0d0e21e | 2028 | if (!cv) |
cea2e8a9 | 2029 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 2030 | |
aea4f609 DM |
2031 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
2032 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 2033 | return NORMAL; |
748a9306 | 2034 | |
a57c6685 | 2035 | ENTER; |
4633a7c4 LW |
2036 | SAVETMPS; |
2037 | ||
3280af22 | 2038 | SAVEI32(PL_debug); |
55497cff | 2039 | SAVESTACK_POS(); |
3280af22 | 2040 | PL_debug = 0; |
748a9306 | 2041 | hasargs = 0; |
924508f0 | 2042 | SPAGAIN; |
748a9306 | 2043 | |
aed2304a | 2044 | if (CvISXSUB(cv)) { |
c127bd3a SF |
2045 | CvDEPTH(cv)++; |
2046 | PUSHMARK(SP); | |
2047 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
2048 | CvDEPTH(cv)--; | |
2049 | FREETMPS; | |
a57c6685 | 2050 | LEAVE; |
c127bd3a SF |
2051 | return NORMAL; |
2052 | } | |
2053 | else { | |
2054 | PUSHBLOCK(cx, CXt_SUB, SP); | |
2055 | PUSHSUB_DB(cx); | |
2056 | cx->blk_sub.retop = PL_op->op_next; | |
2057 | CvDEPTH(cv)++; | |
2058 | SAVECOMPPAD(); | |
2059 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
2060 | RETURNOP(CvSTART(cv)); | |
2061 | } | |
a0d0e21e LW |
2062 | } |
2063 | else | |
2064 | return NORMAL; | |
2065 | } | |
2066 | ||
b9d76716 VP |
2067 | STATIC SV ** |
2068 | S_adjust_stack_on_leave(pTHX_ SV **newsp, SV **sp, SV **mark, I32 gimme, U32 flags) | |
2069 | { | |
2070 | PERL_ARGS_ASSERT_ADJUST_STACK_ON_LEAVE; | |
2071 | ||
2072 | if (gimme == G_SCALAR) { | |
2073 | if (MARK < SP) | |
2074 | *++newsp = (SvFLAGS(*SP) & flags) ? *SP : sv_mortalcopy(*SP); | |
2075 | else { | |
2076 | /* MEXTEND() only updates MARK, so reuse it instead of newsp. */ | |
2077 | MARK = newsp; | |
2078 | MEXTEND(MARK, 1); | |
2079 | *++MARK = &PL_sv_undef; | |
2080 | return MARK; | |
2081 | } | |
2082 | } | |
2083 | else if (gimme == G_ARRAY) { | |
2084 | /* in case LEAVE wipes old return values */ | |
2085 | while (++MARK <= SP) { | |
2086 | if (SvFLAGS(*MARK) & flags) | |
2087 | *++newsp = *MARK; | |
2088 | else { | |
2089 | *++newsp = sv_mortalcopy(*MARK); | |
2090 | TAINT_NOT; /* Each item is independent */ | |
2091 | } | |
2092 | } | |
2093 | /* When this function was called with MARK == newsp, we reach this | |
2094 | * point with SP == newsp. */ | |
2095 | } | |
2096 | ||
2097 | return newsp; | |
2098 | } | |
2099 | ||
2b9a6457 VP |
2100 | PP(pp_enter) |
2101 | { | |
2102 | dVAR; dSP; | |
2103 | register PERL_CONTEXT *cx; | |
7c2d9d03 | 2104 | I32 gimme = GIMME_V; |
2b9a6457 VP |
2105 | |
2106 | ENTER_with_name("block"); | |
2107 | ||
2108 | SAVETMPS; | |
2109 | PUSHBLOCK(cx, CXt_BLOCK, SP); | |
2110 | ||
2111 | RETURN; | |
2112 | } | |
2113 | ||
2114 | PP(pp_leave) | |
2115 | { | |
2116 | dVAR; dSP; | |
2117 | register PERL_CONTEXT *cx; | |
2118 | SV **newsp; | |
2119 | PMOP *newpm; | |
2120 | I32 gimme; | |
2121 | ||
2122 | if (PL_op->op_flags & OPf_SPECIAL) { | |
2123 | cx = &cxstack[cxstack_ix]; | |
2124 | cx->blk_oldpm = PL_curpm; /* fake block should preserve $1 et al */ | |
2125 | } | |
2126 | ||
2127 | POPBLOCK(cx,newpm); | |
2128 | ||
2129 | gimme = OP_GIMME(PL_op, (cxstack_ix >= 0) ? gimme : G_SCALAR); | |
2130 | ||
2131 | TAINT_NOT; | |
f02ea43c | 2132 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
2b9a6457 VP |
2133 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
2134 | ||
2135 | LEAVE_with_name("block"); | |
2136 | ||
2137 | RETURN; | |
2138 | } | |
2139 | ||
a0d0e21e LW |
2140 | PP(pp_enteriter) |
2141 | { | |
27da23d5 | 2142 | dVAR; dSP; dMARK; |
c09156bb | 2143 | register PERL_CONTEXT *cx; |
f54cb97a | 2144 | const I32 gimme = GIMME_V; |
df530c37 | 2145 | void *itervar; /* location of the iteration variable */ |
840fe433 | 2146 | U8 cxtype = CXt_LOOP_FOR; |
a0d0e21e | 2147 | |
d343c3ef | 2148 | ENTER_with_name("loop1"); |
4633a7c4 LW |
2149 | SAVETMPS; |
2150 | ||
aafca525 DM |
2151 | if (PL_op->op_targ) { /* "my" variable */ |
2152 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ | |
14f338dc DM |
2153 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); |
2154 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
2155 | SVs_PADSTALE, SVs_PADSTALE); | |
2156 | } | |
09edbca0 | 2157 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
89e00a7c | 2158 | #ifdef USE_ITHREADS |
df530c37 | 2159 | itervar = PL_comppad; |
89e00a7c | 2160 | #else |
aafca525 | 2161 | itervar = &PAD_SVl(PL_op->op_targ); |
7766f137 | 2162 | #endif |
54b9620d | 2163 | } |
aafca525 | 2164 | else { /* symbol table variable */ |
159b6efe | 2165 | GV * const gv = MUTABLE_GV(POPs); |
f83b46a0 DM |
2166 | SV** svp = &GvSV(gv); |
2167 | save_pushptrptr(gv, SvREFCNT_inc(*svp), SAVEt_GVSV); | |
561b68a9 | 2168 | *svp = newSV(0); |
df530c37 | 2169 | itervar = (void *)gv; |
54b9620d | 2170 | } |
4633a7c4 | 2171 | |
0d863452 RH |
2172 | if (PL_op->op_private & OPpITER_DEF) |
2173 | cxtype |= CXp_FOR_DEF; | |
2174 | ||
d343c3ef | 2175 | ENTER_with_name("loop2"); |
a0d0e21e | 2176 | |
7766f137 | 2177 | PUSHBLOCK(cx, cxtype, SP); |
df530c37 | 2178 | PUSHLOOP_FOR(cx, itervar, MARK); |
533c011a | 2179 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
2180 | SV *maybe_ary = POPs; |
2181 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 2182 | dPOPss; |
d01136d6 | 2183 | SV * const right = maybe_ary; |
984a4bea RD |
2184 | SvGETMAGIC(sv); |
2185 | SvGETMAGIC(right); | |
4fe3f0fa | 2186 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 2187 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
2188 | cx->cx_type |= CXt_LOOP_LAZYIV; |
2189 | /* Make sure that no-one re-orders cop.h and breaks our | |
2190 | assumptions */ | |
2191 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
2192 | #ifdef NV_PRESERVES_UV |
2193 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
2194 | (SvNV(sv) > (NV)IV_MAX))) | |
2195 | || | |
2196 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
2197 | (SvNV(right) < (NV)IV_MIN)))) | |
2198 | #else | |
2199 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
2200 | || | |
2201 | ((SvNV(sv) > 0) && | |
2202 | ((SvUV(sv) > (UV)IV_MAX) || | |
2203 | (SvNV(sv) > (NV)UV_MAX))))) | |
2204 | || | |
2205 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
2206 | || | |
2207 | ((SvNV(right) > 0) && | |
2208 | ((SvUV(right) > (UV)IV_MAX) || | |
2209 | (SvNV(right) > (NV)UV_MAX)))))) | |
2210 | #endif | |
076d9a11 | 2211 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
2212 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
2213 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
2214 | #ifdef DEBUGGING |
2215 | /* for correct -Dstv display */ | |
2216 | cx->blk_oldsp = sp - PL_stack_base; | |
2217 | #endif | |
89ea2908 | 2218 | } |
3f63a782 | 2219 | else { |
d01136d6 BS |
2220 | cx->cx_type &= ~CXTYPEMASK; |
2221 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
2222 | /* Make sure that no-one re-orders cop.h and breaks our | |
2223 | assumptions */ | |
2224 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
2225 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
2226 | cx->blk_loop.state_u.lazysv.end = right; | |
2227 | SvREFCNT_inc(right); | |
2228 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
2229 | /* This will do the upgrade to SVt_PV, and warn if the value |
2230 | is uninitialised. */ | |
10516c54 | 2231 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
2232 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
2233 | to replace !SvOK() with a pointer to "". */ | |
2234 | if (!SvOK(right)) { | |
2235 | SvREFCNT_dec(right); | |
d01136d6 | 2236 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 2237 | } |
3f63a782 | 2238 | } |
89ea2908 | 2239 | } |
d01136d6 | 2240 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2241 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2242 | SvREFCNT_inc(maybe_ary); |
2243 | cx->blk_loop.state_u.ary.ix = | |
2244 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2245 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2246 | -1; | |
ef3e5ea9 | 2247 | } |
89ea2908 | 2248 | } |
d01136d6 BS |
2249 | else { /* iterating over items on the stack */ |
2250 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2251 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2252 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2253 | } |
2254 | else { | |
d01136d6 | 2255 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2256 | } |
4633a7c4 | 2257 | } |
a0d0e21e LW |
2258 | |
2259 | RETURN; | |
2260 | } | |
2261 | ||
2262 | PP(pp_enterloop) | |
2263 | { | |
27da23d5 | 2264 | dVAR; dSP; |
c09156bb | 2265 | register PERL_CONTEXT *cx; |
f54cb97a | 2266 | const I32 gimme = GIMME_V; |
a0d0e21e | 2267 | |
d343c3ef | 2268 | ENTER_with_name("loop1"); |
a0d0e21e | 2269 | SAVETMPS; |
d343c3ef | 2270 | ENTER_with_name("loop2"); |
a0d0e21e | 2271 | |
3b719c58 NC |
2272 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2273 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2274 | |
2275 | RETURN; | |
2276 | } | |
2277 | ||
2278 | PP(pp_leaveloop) | |
2279 | { | |
27da23d5 | 2280 | dVAR; dSP; |
c09156bb | 2281 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2282 | I32 gimme; |
2283 | SV **newsp; | |
2284 | PMOP *newpm; | |
2285 | SV **mark; | |
2286 | ||
2287 | POPBLOCK(cx,newpm); | |
3b719c58 | 2288 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2289 | mark = newsp; |
a8bba7fa | 2290 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2291 | |
a1f49e72 | 2292 | TAINT_NOT; |
b9d76716 | 2293 | SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, 0); |
f86702cc | 2294 | PUTBACK; |
2295 | ||
a8bba7fa | 2296 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2297 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2298 | |
d343c3ef GG |
2299 | LEAVE_with_name("loop2"); |
2300 | LEAVE_with_name("loop1"); | |
a0d0e21e | 2301 | |
f86702cc | 2302 | return NORMAL; |
a0d0e21e LW |
2303 | } |
2304 | ||
3bdf583b FC |
2305 | STATIC void |
2306 | S_return_lvalues(pTHX_ SV **mark, SV **sp, SV **newsp, I32 gimme, | |
d25b0d7b | 2307 | PERL_CONTEXT *cx, PMOP *newpm) |
3bdf583b | 2308 | { |
80422e24 | 2309 | const bool ref = !!(CxLVAL(cx) & OPpENTERSUB_INARGS); |
3bdf583b | 2310 | if (gimme == G_SCALAR) { |
d25b0d7b FC |
2311 | if (CxLVAL(cx) && !ref) { /* Leave it as it is if we can. */ |
2312 | SV *sv; | |
001de122 | 2313 | const char *what = NULL; |
d25b0d7b FC |
2314 | if (MARK < SP) { |
2315 | assert(MARK+1 == SP); | |
2316 | if ((SvPADTMP(TOPs) || | |
2317 | (SvFLAGS(TOPs) & (SVf_READONLY | SVf_FAKE)) | |
2318 | == SVf_READONLY | |
2319 | ) && | |
2320 | !SvSMAGICAL(TOPs)) { | |
001de122 | 2321 | what = |
d25b0d7b | 2322 | SvREADONLY(TOPs) ? (TOPs == &PL_sv_undef) ? "undef" |
001de122 | 2323 | : "a readonly value" : "a temporary"; |
d25b0d7b | 2324 | } |
001de122 | 2325 | else goto copy_sv; |
d25b0d7b FC |
2326 | } |
2327 | else { | |
2328 | /* sub:lvalue{} will take us here. */ | |
001de122 | 2329 | what = "undef"; |
d25b0d7b | 2330 | } |
001de122 FC |
2331 | LEAVE; |
2332 | cxstack_ix--; | |
2333 | POPSUB(cx,sv); | |
2334 | PL_curpm = newpm; | |
2335 | LEAVESUB(sv); | |
2336 | Perl_croak(aTHX_ | |
2337 | "Can't return %s from lvalue subroutine", what | |
2338 | ); | |
d25b0d7b | 2339 | } |
93905212 | 2340 | if (MARK < SP) { |
a5ad7a5a | 2341 | copy_sv: |
3bdf583b FC |
2342 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
2343 | *++newsp = SvREFCNT_inc(*SP); | |
2344 | FREETMPS; | |
2345 | sv_2mortal(*newsp); | |
2346 | } | |
2347 | else | |
e08be60b | 2348 | *++newsp = |
e08be60b FC |
2349 | !SvTEMP(*SP) |
2350 | ? sv_2mortal(SvREFCNT_inc_simple_NN(*SP)) | |
2351 | : *SP; | |
3bdf583b | 2352 | } |
0d235c77 FC |
2353 | else { |
2354 | EXTEND(newsp,1); | |
3bdf583b | 2355 | *++newsp = &PL_sv_undef; |
0d235c77 | 2356 | } |
767eda44 FC |
2357 | if (CxLVAL(cx) & OPpENTERSUB_DEREF) { |
2358 | SvGETMAGIC(TOPs); | |
2359 | if (!SvOK(TOPs)) { | |
2360 | U8 deref_type; | |
2361 | if (cx->blk_sub.retop->op_type == OP_RV2SV) | |
2362 | deref_type = OPpDEREF_SV; | |
2363 | else if (cx->blk_sub.retop->op_type == OP_RV2AV) | |
2364 | deref_type = OPpDEREF_AV; | |
2365 | else { | |
2366 | assert(cx->blk_sub.retop->op_type == OP_RV2HV); | |
2367 | deref_type = OPpDEREF_HV; | |
2368 | } | |
2369 | vivify_ref(TOPs, deref_type); | |
2370 | } | |
2371 | } | |
3bdf583b FC |
2372 | } |
2373 | else if (gimme == G_ARRAY) { | |
767eda44 | 2374 | assert (!(CxLVAL(cx) & OPpENTERSUB_DEREF)); |
80422e24 | 2375 | if (ref || !CxLVAL(cx)) |
e08be60b FC |
2376 | while (++MARK <= SP) |
2377 | *++newsp = | |
2378 | SvTEMP(*MARK) | |
2379 | ? *MARK | |
80422e24 FC |
2380 | : ref && SvFLAGS(*MARK) & SVs_PADTMP |
2381 | ? sv_mortalcopy(*MARK) | |
2382 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); | |
e08be60b | 2383 | else while (++MARK <= SP) { |
d25b0d7b FC |
2384 | if (*MARK != &PL_sv_undef |
2385 | && (SvPADTMP(*MARK) | |
2386 | || (SvFLAGS(*MARK) & (SVf_READONLY|SVf_FAKE)) | |
2387 | == SVf_READONLY | |
2388 | ) | |
2389 | ) { | |
2390 | SV *sv; | |
2391 | /* Might be flattened array after $#array = */ | |
2392 | PUTBACK; | |
2393 | LEAVE; | |
2394 | cxstack_ix--; | |
2395 | POPSUB(cx,sv); | |
2396 | PL_curpm = newpm; | |
2397 | LEAVESUB(sv); | |
2398 | Perl_croak(aTHX_ | |
2399 | "Can't return a %s from lvalue subroutine", | |
2400 | SvREADONLY(TOPs) ? "readonly value" : "temporary"); | |
2401 | } | |
2402 | else | |
4bee03f8 FC |
2403 | *++newsp = |
2404 | SvTEMP(*MARK) | |
2405 | ? *MARK | |
2406 | : sv_2mortal(SvREFCNT_inc_simple_NN(*MARK)); | |
3bdf583b FC |
2407 | } |
2408 | } | |
2409 | PL_stack_sp = newsp; | |
2410 | } | |
2411 | ||
a0d0e21e LW |
2412 | PP(pp_return) |
2413 | { | |
27da23d5 | 2414 | dVAR; dSP; dMARK; |
c09156bb | 2415 | register PERL_CONTEXT *cx; |
f86702cc | 2416 | bool popsub2 = FALSE; |
b45de488 | 2417 | bool clear_errsv = FALSE; |
fa1e92c4 | 2418 | bool lval = FALSE; |
767eda44 | 2419 | bool gmagic = FALSE; |
a0d0e21e LW |
2420 | I32 gimme; |
2421 | SV **newsp; | |
2422 | PMOP *newpm; | |
2423 | I32 optype = 0; | |
b6494f15 | 2424 | SV *namesv; |
b0d9ce38 | 2425 | SV *sv; |
b263a1ad | 2426 | OP *retop = NULL; |
a0d0e21e | 2427 | |
0bd48802 AL |
2428 | const I32 cxix = dopoptosub(cxstack_ix); |
2429 | ||
9850bf21 RH |
2430 | if (cxix < 0) { |
2431 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2432 | * sort block, which is a CXt_NULL | |
2433 | * not a CXt_SUB */ | |
2434 | dounwind(0); | |
d7507f74 RH |
2435 | PL_stack_base[1] = *PL_stack_sp; |
2436 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2437 | return 0; |
2438 | } | |
9850bf21 RH |
2439 | else |
2440 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2441 | } |
a0d0e21e LW |
2442 | if (cxix < cxstack_ix) |
2443 | dounwind(cxix); | |
2444 | ||
d7507f74 RH |
2445 | if (CxMULTICALL(&cxstack[cxix])) { |
2446 | gimme = cxstack[cxix].blk_gimme; | |
2447 | if (gimme == G_VOID) | |
2448 | PL_stack_sp = PL_stack_base; | |
2449 | else if (gimme == G_SCALAR) { | |
2450 | PL_stack_base[1] = *PL_stack_sp; | |
2451 | PL_stack_sp = PL_stack_base + 1; | |
2452 | } | |
9850bf21 | 2453 | return 0; |
d7507f74 | 2454 | } |
9850bf21 | 2455 | |
a0d0e21e | 2456 | POPBLOCK(cx,newpm); |
6b35e009 | 2457 | switch (CxTYPE(cx)) { |
a0d0e21e | 2458 | case CXt_SUB: |
f86702cc | 2459 | popsub2 = TRUE; |
fa1e92c4 | 2460 | lval = !!CvLVALUE(cx->blk_sub.cv); |
f39bc417 | 2461 | retop = cx->blk_sub.retop; |
767eda44 | 2462 | gmagic = CxLVAL(cx) & OPpENTERSUB_DEREF; |
5dd42e15 | 2463 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2464 | break; |
2465 | case CXt_EVAL: | |
b45de488 GS |
2466 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2467 | clear_errsv = TRUE; | |
a0d0e21e | 2468 | POPEVAL(cx); |
b6494f15 | 2469 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 2470 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2471 | if (CxTRYBLOCK(cx)) |
2472 | break; | |
748a9306 LW |
2473 | if (optype == OP_REQUIRE && |
2474 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2475 | { | |
54310121 | 2476 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
2477 | (void)hv_delete(GvHVn(PL_incgv), |
2478 | SvPVX_const(namesv), SvCUR(namesv), | |
2479 | G_DISCARD); | |
2480 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(namesv)); | |
748a9306 | 2481 | } |
a0d0e21e | 2482 | break; |
7766f137 GS |
2483 | case CXt_FORMAT: |
2484 | POPFORMAT(cx); | |
f39bc417 | 2485 | retop = cx->blk_sub.retop; |
7766f137 | 2486 | break; |
a0d0e21e | 2487 | default: |
cea2e8a9 | 2488 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2489 | } |
2490 | ||
a1f49e72 | 2491 | TAINT_NOT; |
d25b0d7b | 2492 | if (lval) S_return_lvalues(aTHX_ MARK, SP, newsp, gimme, cx, newpm); |
3bdf583b FC |
2493 | else { |
2494 | if (gimme == G_SCALAR) { | |
a29cdaf0 IZ |
2495 | if (MARK < SP) { |
2496 | if (popsub2) { | |
a8bba7fa | 2497 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
3ed94dc0 | 2498 | if (SvTEMP(TOPs) && SvREFCNT(TOPs) == 1) { |
a29cdaf0 IZ |
2499 | *++newsp = SvREFCNT_inc(*SP); |
2500 | FREETMPS; | |
2501 | sv_2mortal(*newsp); | |
862b2c43 | 2502 | if (gmagic) SvGETMAGIC(*newsp); |
959e3673 GS |
2503 | } |
2504 | else { | |
2505 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2506 | FREETMPS; |
959e3673 GS |
2507 | *++newsp = sv_mortalcopy(sv); |
2508 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2509 | } |
959e3673 | 2510 | } |
3ed94dc0 | 2511 | else if (SvTEMP(*SP) && SvREFCNT(*SP) == 1) { |
767eda44 FC |
2512 | *++newsp = *SP; |
2513 | if (gmagic) SvGETMAGIC(*SP); | |
2514 | } | |
959e3673 | 2515 | else |
767eda44 | 2516 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2517 | } |
2518 | else | |
a29cdaf0 | 2519 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2520 | } |
2521 | else | |
3280af22 | 2522 | *++newsp = &PL_sv_undef; |
3bdf583b FC |
2523 | } |
2524 | else if (gimme == G_ARRAY) { | |
a1f49e72 | 2525 | while (++MARK <= SP) { |
3ed94dc0 | 2526 | *++newsp = popsub2 && SvTEMP(*MARK) && SvREFCNT(*MARK) == 1 |
f86702cc | 2527 | ? *MARK : sv_mortalcopy(*MARK); |
a1f49e72 CS |
2528 | TAINT_NOT; /* Each item is independent */ |
2529 | } | |
3bdf583b FC |
2530 | } |
2531 | PL_stack_sp = newsp; | |
a0d0e21e | 2532 | } |
a0d0e21e | 2533 | |
5dd42e15 | 2534 | LEAVE; |
f86702cc | 2535 | /* Stack values are safe: */ |
2536 | if (popsub2) { | |
5dd42e15 | 2537 | cxstack_ix--; |
b0d9ce38 | 2538 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2539 | } |
b0d9ce38 | 2540 | else |
c445ea15 | 2541 | sv = NULL; |
3280af22 | 2542 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2543 | |
b0d9ce38 | 2544 | LEAVESUB(sv); |
8433848b | 2545 | if (clear_errsv) { |
ab69dbc2 | 2546 | CLEAR_ERRSV(); |
8433848b | 2547 | } |
f39bc417 | 2548 | return retop; |
a0d0e21e LW |
2549 | } |
2550 | ||
4f443c3d FC |
2551 | /* This duplicates parts of pp_leavesub, so that it can share code with |
2552 | * pp_return */ | |
2553 | PP(pp_leavesublv) | |
2554 | { | |
2555 | dVAR; dSP; | |
4f443c3d FC |
2556 | SV **newsp; |
2557 | PMOP *newpm; | |
2558 | I32 gimme; | |
2559 | register PERL_CONTEXT *cx; | |
2560 | SV *sv; | |
2561 | ||
2562 | if (CxMULTICALL(&cxstack[cxstack_ix])) | |
2563 | return 0; | |
2564 | ||
2565 | POPBLOCK(cx,newpm); | |
2566 | cxstack_ix++; /* temporarily protect top context */ | |
2567 | assert(CvLVALUE(cx->blk_sub.cv)); | |
2568 | ||
2569 | TAINT_NOT; | |
2570 | ||
0d235c77 | 2571 | S_return_lvalues(aTHX_ newsp, SP, newsp, gimme, cx, newpm); |
4f443c3d FC |
2572 | |
2573 | LEAVE; | |
2574 | cxstack_ix--; | |
2575 | POPSUB(cx,sv); /* Stack values are safe: release CV and @_ ... */ | |
2576 | PL_curpm = newpm; /* ... and pop $1 et al */ | |
2577 | ||
2578 | LEAVESUB(sv); | |
2579 | return cx->blk_sub.retop; | |
2580 | } | |
2581 | ||
a0d0e21e LW |
2582 | PP(pp_last) |
2583 | { | |
27da23d5 | 2584 | dVAR; dSP; |
a0d0e21e | 2585 | I32 cxix; |
c09156bb | 2586 | register PERL_CONTEXT *cx; |
f86702cc | 2587 | I32 pop2 = 0; |
a0d0e21e | 2588 | I32 gimme; |
8772537c | 2589 | I32 optype; |
b263a1ad | 2590 | OP *nextop = NULL; |
a0d0e21e LW |
2591 | SV **newsp; |
2592 | PMOP *newpm; | |
a8bba7fa | 2593 | SV **mark; |
c445ea15 | 2594 | SV *sv = NULL; |
9d4ba2ae | 2595 | |
a0d0e21e | 2596 | |
533c011a | 2597 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2598 | cxix = dopoptoloop(cxstack_ix); |
2599 | if (cxix < 0) | |
a651a37d | 2600 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2601 | } |
2602 | else { | |
2603 | cxix = dopoptolabel(cPVOP->op_pv); | |
2604 | if (cxix < 0) | |
cea2e8a9 | 2605 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2606 | } |
2607 | if (cxix < cxstack_ix) | |
2608 | dounwind(cxix); | |
2609 | ||
2610 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2611 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2612 | mark = newsp; |
6b35e009 | 2613 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2614 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2615 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2616 | case CXt_LOOP_FOR: |
2617 | case CXt_LOOP_PLAIN: | |
2618 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2619 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2620 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2621 | break; |
f86702cc | 2622 | case CXt_SUB: |
f86702cc | 2623 | pop2 = CXt_SUB; |
f39bc417 | 2624 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2625 | break; |
f86702cc | 2626 | case CXt_EVAL: |
2627 | POPEVAL(cx); | |
f39bc417 | 2628 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2629 | break; |
7766f137 GS |
2630 | case CXt_FORMAT: |
2631 | POPFORMAT(cx); | |
f39bc417 | 2632 | nextop = cx->blk_sub.retop; |
7766f137 | 2633 | break; |
a0d0e21e | 2634 | default: |
cea2e8a9 | 2635 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2636 | } |
2637 | ||
a1f49e72 | 2638 | TAINT_NOT; |
b9d76716 VP |
2639 | SP = adjust_stack_on_leave(newsp, SP, MARK, gimme, |
2640 | pop2 == CXt_SUB ? SVs_TEMP : 0); | |
f86702cc | 2641 | PUTBACK; |
2642 | ||
5dd42e15 DM |
2643 | LEAVE; |
2644 | cxstack_ix--; | |
f86702cc | 2645 | /* Stack values are safe: */ |
2646 | switch (pop2) { | |
c6fdafd0 | 2647 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2648 | case CXt_LOOP_PLAIN: |
d01136d6 | 2649 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2650 | case CXt_LOOP_FOR: |
a8bba7fa | 2651 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2652 | LEAVE; |
f86702cc | 2653 | break; |
2654 | case CXt_SUB: | |
b0d9ce38 | 2655 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2656 | break; |
a0d0e21e | 2657 | } |
3280af22 | 2658 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2659 | |
b0d9ce38 | 2660 | LEAVESUB(sv); |
9d4ba2ae AL |
2661 | PERL_UNUSED_VAR(optype); |
2662 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2663 | return nextop; |
a0d0e21e LW |
2664 | } |
2665 | ||
2666 | PP(pp_next) | |
2667 | { | |
27da23d5 | 2668 | dVAR; |
a0d0e21e | 2669 | I32 cxix; |
c09156bb | 2670 | register PERL_CONTEXT *cx; |
85538317 | 2671 | I32 inner; |
a0d0e21e | 2672 | |
533c011a | 2673 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2674 | cxix = dopoptoloop(cxstack_ix); |
2675 | if (cxix < 0) | |
a651a37d | 2676 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2677 | } |
2678 | else { | |
2679 | cxix = dopoptolabel(cPVOP->op_pv); | |
2680 | if (cxix < 0) | |
cea2e8a9 | 2681 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2682 | } |
2683 | if (cxix < cxstack_ix) | |
2684 | dounwind(cxix); | |
2685 | ||
85538317 GS |
2686 | /* clear off anything above the scope we're re-entering, but |
2687 | * save the rest until after a possible continue block */ | |
2688 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2689 | TOPBLOCK(cx); |
85538317 GS |
2690 | if (PL_scopestack_ix < inner) |
2691 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2692 | PL_curcop = cx->blk_oldcop; |
d57ce4df | 2693 | return (cx)->blk_loop.my_op->op_nextop; |
a0d0e21e LW |
2694 | } |
2695 | ||
2696 | PP(pp_redo) | |
2697 | { | |
27da23d5 | 2698 | dVAR; |
a0d0e21e | 2699 | I32 cxix; |
c09156bb | 2700 | register PERL_CONTEXT *cx; |
a0d0e21e | 2701 | I32 oldsave; |
a034e688 | 2702 | OP* redo_op; |
a0d0e21e | 2703 | |
533c011a | 2704 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2705 | cxix = dopoptoloop(cxstack_ix); |
2706 | if (cxix < 0) | |
a651a37d | 2707 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2708 | } |
2709 | else { | |
2710 | cxix = dopoptolabel(cPVOP->op_pv); | |
2711 | if (cxix < 0) | |
cea2e8a9 | 2712 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2713 | } |
2714 | if (cxix < cxstack_ix) | |
2715 | dounwind(cxix); | |
2716 | ||
022eaa24 | 2717 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2718 | if (redo_op->op_type == OP_ENTER) { |
2719 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2720 | cxstack_ix++; | |
2721 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2722 | redo_op = redo_op->op_next; | |
2723 | } | |
2724 | ||
a0d0e21e | 2725 | TOPBLOCK(cx); |
3280af22 | 2726 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2727 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2728 | FREETMPS; |
3a1b2b9e | 2729 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2730 | return redo_op; |
a0d0e21e LW |
2731 | } |
2732 | ||
0824fdcb | 2733 | STATIC OP * |
bfed75c6 | 2734 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2735 | { |
97aff369 | 2736 | dVAR; |
a0d0e21e | 2737 | OP **ops = opstack; |
bfed75c6 | 2738 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2739 | |
7918f24d NC |
2740 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2741 | ||
fc36a67e | 2742 | if (ops >= oplimit) |
cea2e8a9 | 2743 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2744 | if (o->op_type == OP_LEAVE || |
2745 | o->op_type == OP_SCOPE || | |
2746 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2747 | o->op_type == OP_LEAVESUB || |
11343788 | 2748 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2749 | { |
5dc0d613 | 2750 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2751 | if (ops >= oplimit) |
cea2e8a9 | 2752 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2753 | } |
c4aa4e48 | 2754 | *ops = 0; |
11343788 | 2755 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2756 | OP *kid; |
a0d0e21e | 2757 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2758 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
7e8f1eac AD |
2759 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2760 | const char *kid_label = CopLABEL(kCOP); | |
2761 | if (kid_label && strEQ(kid_label, label)) | |
2762 | return kid; | |
2763 | } | |
a0d0e21e | 2764 | } |
11343788 | 2765 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2766 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2767 | continue; |
ed8d0fe2 SM |
2768 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2769 | if (ops == opstack) | |
2770 | *ops++ = kid; | |
2771 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2772 | ops[-1]->op_type == OP_DBSTATE) | |
2773 | ops[-1] = kid; | |
2774 | else | |
2775 | *ops++ = kid; | |
2776 | } | |
155aba94 | 2777 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2778 | return o; |
a0d0e21e LW |
2779 | } |
2780 | } | |
c4aa4e48 | 2781 | *ops = 0; |
a0d0e21e LW |
2782 | return 0; |
2783 | } | |
2784 | ||
a0d0e21e LW |
2785 | PP(pp_goto) |
2786 | { | |
27da23d5 | 2787 | dVAR; dSP; |
cbbf8932 | 2788 | OP *retop = NULL; |
a0d0e21e | 2789 | I32 ix; |
c09156bb | 2790 | register PERL_CONTEXT *cx; |
fc36a67e | 2791 | #define GOTO_DEPTH 64 |
2792 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2793 | const char *label = NULL; |
bfed75c6 AL |
2794 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2795 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2796 | |
533c011a | 2797 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2798 | SV * const sv = POPs; |
a0d0e21e LW |
2799 | |
2800 | /* This egregious kludge implements goto &subroutine */ | |
2801 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2802 | I32 cxix; | |
c09156bb | 2803 | register PERL_CONTEXT *cx; |
ea726b52 | 2804 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2805 | SV** mark; |
2806 | I32 items = 0; | |
2807 | I32 oldsave; | |
b1464ded | 2808 | bool reified = 0; |
a0d0e21e | 2809 | |
e8f7dd13 | 2810 | retry: |
4aa0a1f7 | 2811 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2812 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2813 | if (gv) { |
7fc63493 | 2814 | GV *autogv; |
e8f7dd13 GS |
2815 | SV *tmpstr; |
2816 | /* autoloaded stub? */ | |
2817 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2818 | goto retry; | |
2819 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2820 | GvNAMELEN(gv), FALSE); | |
2821 | if (autogv && (cv = GvCV(autogv))) | |
2822 | goto retry; | |
2823 | tmpstr = sv_newmortal(); | |
c445ea15 | 2824 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2825 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2826 | } |
cea2e8a9 | 2827 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2828 | } |
2829 | ||
a0d0e21e | 2830 | /* First do some returnish stuff. */ |
b37c2d43 | 2831 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2832 | FREETMPS; |
a0d0e21e LW |
2833 | cxix = dopoptosub(cxstack_ix); |
2834 | if (cxix < 0) | |
cea2e8a9 | 2835 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2836 | if (cxix < cxstack_ix) |
2837 | dounwind(cxix); | |
2838 | TOPBLOCK(cx); | |
2d43a17f | 2839 | SPAGAIN; |
564abe23 | 2840 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2841 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2842 | if (CxREALEVAL(cx)) |
2843 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2844 | else | |
2845 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2846 | } |
9850bf21 RH |
2847 | else if (CxMULTICALL(cx)) |
2848 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2849 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2850 | /* put @_ back onto stack */ |
a0d0e21e | 2851 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2852 | |
93965878 | 2853 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2854 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2855 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2856 | SvREFCNT_dec(GvAV(PL_defgv)); |
2857 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2858 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2859 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2860 | if (AvREAL(av)) { |
b1464ded DM |
2861 | reified = 1; |
2862 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2863 | av = newAV(); |
2864 | av_extend(av, items-1); | |
11ca45c0 | 2865 | AvREIFY_only(av); |
ad64d0ec | 2866 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2867 | } |
a0d0e21e | 2868 | } |
aed2304a | 2869 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2870 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2871 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2872 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2873 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2874 | } |
a45cdc79 DM |
2875 | mark = SP; |
2876 | SP += items; | |
6b35e009 | 2877 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2878 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2879 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2880 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2881 | LEAVE_SCOPE(oldsave); |
2882 | ||
2883 | /* Now do some callish stuff. */ | |
2884 | SAVETMPS; | |
5023d17a | 2885 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2886 | if (CvISXSUB(cv)) { |
b37c2d43 | 2887 | OP* const retop = cx->blk_sub.retop; |
9410e98d RB |
2888 | SV **newsp __attribute__unused__; |
2889 | I32 gimme __attribute__unused__; | |
b1464ded DM |
2890 | if (reified) { |
2891 | I32 index; | |
2892 | for (index=0; index<items; index++) | |
2893 | sv_2mortal(SP[-index]); | |
2894 | } | |
1fa4e549 | 2895 | |
b37c2d43 AL |
2896 | /* XS subs don't have a CxSUB, so pop it */ |
2897 | POPBLOCK(cx, PL_curpm); | |
2898 | /* Push a mark for the start of arglist */ | |
2899 | PUSHMARK(mark); | |
2900 | PUTBACK; | |
2901 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a57c6685 | 2902 | LEAVE; |
5eff7df7 | 2903 | return retop; |
a0d0e21e LW |
2904 | } |
2905 | else { | |
b37c2d43 | 2906 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2907 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2908 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2909 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2910 | cx->cx_type = CXt_SUB; |
b150fb22 | 2911 | } |
a0d0e21e | 2912 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2913 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2914 | |
a0d0e21e LW |
2915 | CvDEPTH(cv)++; |
2916 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2917 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2918 | else { |
2b9dff67 | 2919 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2920 | sub_crush_depth(cv); |
26019298 | 2921 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2922 | } |
fd617465 DM |
2923 | SAVECOMPPAD(); |
2924 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2925 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2926 | { |
502c6561 | 2927 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2928 | |
3280af22 | 2929 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2930 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2931 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2932 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2933 | |
2934 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2935 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2936 | if (AvARRAY(av) != ary) { |
2937 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2938 | AvARRAY(av) = ary; |
a0d0e21e LW |
2939 | } |
2940 | if (items >= AvMAX(av) + 1) { | |
2941 | AvMAX(av) = items - 1; | |
2942 | Renew(ary,items+1,SV*); | |
2943 | AvALLOC(av) = ary; | |
9c6bc640 | 2944 | AvARRAY(av) = ary; |
a0d0e21e LW |
2945 | } |
2946 | } | |
a45cdc79 | 2947 | ++mark; |
a0d0e21e | 2948 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2949 | AvFILLp(av) = items - 1; |
d8b46c1b | 2950 | assert(!AvREAL(av)); |
b1464ded DM |
2951 | if (reified) { |
2952 | /* transfer 'ownership' of refcnts to new @_ */ | |
2953 | AvREAL_on(av); | |
2954 | AvREIFY_off(av); | |
2955 | } | |
a0d0e21e LW |
2956 | while (items--) { |
2957 | if (*mark) | |
2958 | SvTEMP_off(*mark); | |
2959 | mark++; | |
2960 | } | |
2961 | } | |
491527d0 | 2962 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2963 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2964 | if (PERLDB_GOTO) { |
b96d8cd9 | 2965 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2966 | if (gotocv) { |
2967 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2968 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2969 | PL_stack_sp--; |
2970 | } | |
491527d0 | 2971 | } |
1ce6579f | 2972 | } |
a0d0e21e LW |
2973 | RETURNOP(CvSTART(cv)); |
2974 | } | |
2975 | } | |
1614b0e3 | 2976 | else { |
0510663f | 2977 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2978 | if (!(do_dump || *label)) |
cea2e8a9 | 2979 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2980 | } |
a0d0e21e | 2981 | } |
533c011a | 2982 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2983 | if (! do_dump) |
cea2e8a9 | 2984 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2985 | } |
2986 | else | |
2987 | label = cPVOP->op_pv; | |
2988 | ||
f410a211 NC |
2989 | PERL_ASYNC_CHECK(); |
2990 | ||
a0d0e21e | 2991 | if (label && *label) { |
cbbf8932 | 2992 | OP *gotoprobe = NULL; |
3b2447bc | 2993 | bool leaving_eval = FALSE; |
33d34e4c | 2994 | bool in_block = FALSE; |
cbbf8932 | 2995 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2996 | |
2997 | /* find label */ | |
2998 | ||
d4c19fe8 | 2999 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
3000 | *enterops = 0; |
3001 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
3002 | cx = &cxstack[ix]; | |
6b35e009 | 3003 | switch (CxTYPE(cx)) { |
a0d0e21e | 3004 | case CXt_EVAL: |
3b2447bc | 3005 | leaving_eval = TRUE; |
971ecbe6 | 3006 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
3007 | gotoprobe = (last_eval_cx ? |
3008 | last_eval_cx->blk_eval.old_eval_root : | |
3009 | PL_eval_root); | |
3010 | last_eval_cx = cx; | |
9c5794fe RH |
3011 | break; |
3012 | } | |
3013 | /* else fall through */ | |
c6fdafd0 | 3014 | case CXt_LOOP_LAZYIV: |
d01136d6 | 3015 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
3016 | case CXt_LOOP_FOR: |
3017 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
3018 | case CXt_GIVEN: |
3019 | case CXt_WHEN: | |
a0d0e21e LW |
3020 | gotoprobe = cx->blk_oldcop->op_sibling; |
3021 | break; | |
3022 | case CXt_SUBST: | |
3023 | continue; | |
3024 | case CXt_BLOCK: | |
33d34e4c | 3025 | if (ix) { |
a0d0e21e | 3026 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
3027 | in_block = TRUE; |
3028 | } else | |
3280af22 | 3029 | gotoprobe = PL_main_root; |
a0d0e21e | 3030 | break; |
b3933176 | 3031 | case CXt_SUB: |
9850bf21 | 3032 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
3033 | gotoprobe = CvROOT(cx->blk_sub.cv); |
3034 | break; | |
3035 | } | |
3036 | /* FALL THROUGH */ | |
7766f137 | 3037 | case CXt_FORMAT: |
0a753a76 | 3038 | case CXt_NULL: |
a651a37d | 3039 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
3040 | default: |
3041 | if (ix) | |
cea2e8a9 | 3042 | DIE(aTHX_ "panic: goto"); |
3280af22 | 3043 | gotoprobe = PL_main_root; |
a0d0e21e LW |
3044 | break; |
3045 | } | |
2b597662 GS |
3046 | if (gotoprobe) { |
3047 | retop = dofindlabel(gotoprobe, label, | |
3048 | enterops, enterops + GOTO_DEPTH); | |
3049 | if (retop) | |
3050 | break; | |
eae48c89 Z |
3051 | if (gotoprobe->op_sibling && |
3052 | gotoprobe->op_sibling->op_type == OP_UNSTACK && | |
3053 | gotoprobe->op_sibling->op_sibling) { | |
3054 | retop = dofindlabel(gotoprobe->op_sibling->op_sibling, | |
3055 | label, enterops, enterops + GOTO_DEPTH); | |
3056 | if (retop) | |
3057 | break; | |
3058 | } | |
2b597662 | 3059 | } |
3280af22 | 3060 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
3061 | } |
3062 | if (!retop) | |
cea2e8a9 | 3063 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 3064 | |
3b2447bc RH |
3065 | /* if we're leaving an eval, check before we pop any frames |
3066 | that we're not going to punt, otherwise the error | |
3067 | won't be caught */ | |
3068 | ||
3069 | if (leaving_eval && *enterops && enterops[1]) { | |
3070 | I32 i; | |
3071 | for (i = 1; enterops[i]; i++) | |
3072 | if (enterops[i]->op_type == OP_ENTERITER) | |
3073 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
3074 | } | |
3075 | ||
b500e03b GG |
3076 | if (*enterops && enterops[1]) { |
3077 | I32 i = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; | |
3078 | if (enterops[i]) | |
3079 | deprecate("\"goto\" to jump into a construct"); | |
3080 | } | |
3081 | ||
a0d0e21e LW |
3082 | /* pop unwanted frames */ |
3083 | ||
3084 | if (ix < cxstack_ix) { | |
3085 | I32 oldsave; | |
3086 | ||
3087 | if (ix < 0) | |
3088 | ix = 0; | |
3089 | dounwind(ix); | |
3090 | TOPBLOCK(cx); | |
3280af22 | 3091 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
3092 | LEAVE_SCOPE(oldsave); |
3093 | } | |
3094 | ||
3095 | /* push wanted frames */ | |
3096 | ||
748a9306 | 3097 | if (*enterops && enterops[1]) { |
0bd48802 | 3098 | OP * const oldop = PL_op; |
33d34e4c AE |
3099 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
3100 | for (; enterops[ix]; ix++) { | |
533c011a | 3101 | PL_op = enterops[ix]; |
84902520 TB |
3102 | /* Eventually we may want to stack the needed arguments |
3103 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 3104 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 3105 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
16c91539 | 3106 | PL_op->op_ppaddr(aTHX); |
a0d0e21e | 3107 | } |
533c011a | 3108 | PL_op = oldop; |
a0d0e21e LW |
3109 | } |
3110 | } | |
3111 | ||
3112 | if (do_dump) { | |
a5f75d66 | 3113 | #ifdef VMS |
6b88bc9c | 3114 | if (!retop) retop = PL_main_start; |
a5f75d66 | 3115 | #endif |
3280af22 NIS |
3116 | PL_restartop = retop; |
3117 | PL_do_undump = TRUE; | |
a0d0e21e LW |
3118 | |
3119 | my_unexec(); | |
3120 | ||
3280af22 NIS |
3121 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
3122 | PL_do_undump = FALSE; | |
a0d0e21e LW |
3123 | } |
3124 | ||
3125 | RETURNOP(retop); | |
3126 | } | |
3127 | ||
3128 | PP(pp_exit) | |
3129 | { | |
97aff369 | 3130 | dVAR; |
39644a26 | 3131 | dSP; |
a0d0e21e LW |
3132 | I32 anum; |
3133 | ||
3134 | if (MAXARG < 1) | |
3135 | anum = 0; | |
ff0cee69 | 3136 | else { |
a0d0e21e | 3137 | anum = SvIVx(POPs); |
d98f61e7 GS |
3138 | #ifdef VMS |
3139 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 3140 | anum = 0; |
96e176bf | 3141 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 3142 | #endif |
3143 | } | |
cc3604b1 | 3144 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
3145 | #ifdef PERL_MAD |
3146 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
3147 | if (anum || !(PL_minus_c && PL_madskills)) | |
3148 | my_exit(anum); | |
3149 | #else | |
a0d0e21e | 3150 | my_exit(anum); |
81d86705 | 3151 | #endif |
3280af22 | 3152 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
3153 | RETURN; |
3154 | } | |
3155 | ||
a0d0e21e LW |
3156 | /* Eval. */ |
3157 | ||
0824fdcb | 3158 | STATIC void |
cea2e8a9 | 3159 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 3160 | { |
504618e9 | 3161 | const char *s = SvPVX_const(sv); |
890ce7af | 3162 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 3163 | I32 line = 1; |
a0d0e21e | 3164 | |
7918f24d NC |
3165 | PERL_ARGS_ASSERT_SAVE_LINES; |
3166 | ||
a0d0e21e | 3167 | while (s && s < send) { |
f54cb97a | 3168 | const char *t; |
b9f83d2f | 3169 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 3170 | |
1d963ff3 | 3171 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
3172 | if (t) |
3173 | t++; | |
3174 | else | |
3175 | t = send; | |
3176 | ||
3177 | sv_setpvn(tmpstr, s, t - s); | |
3178 | av_store(array, line++, tmpstr); | |
3179 | s = t; | |
3180 | } | |
3181 | } | |
3182 | ||
22f16304 RU |
3183 | /* |
3184 | =for apidoc docatch | |
3185 | ||
3186 | Check for the cases 0 or 3 of cur_env.je_ret, only used inside an eval context. | |
3187 | ||
3188 | 0 is used as continue inside eval, | |
3189 | ||
3190 | 3 is used for a die caught by an inner eval - continue inner loop | |
3191 | ||
3192 | See cop.h: je_mustcatch, when set at any runlevel to TRUE, means eval ops must | |
3193 | establish a local jmpenv to handle exception traps. | |
3194 | ||
3195 | =cut | |
3196 | */ | |
0824fdcb | 3197 | STATIC OP * |
cea2e8a9 | 3198 | S_docatch(pTHX_ OP *o) |
1e422769 | 3199 | { |
97aff369 | 3200 | dVAR; |
6224f72b | 3201 | int ret; |
06b5626a | 3202 | OP * const oldop = PL_op; |
db36c5a1 | 3203 | dJMPENV; |
1e422769 | 3204 | |
1e422769 | 3205 | #ifdef DEBUGGING |
54310121 | 3206 | assert(CATCH_GET == TRUE); |
1e422769 | 3207 | #endif |
312caa8e | 3208 | PL_op = o; |
8bffa5f8 | 3209 | |
14dd3ad8 | 3210 | JMPENV_PUSH(ret); |
6224f72b | 3211 | switch (ret) { |
312caa8e | 3212 | case 0: |
abd70938 DM |
3213 | assert(cxstack_ix >= 0); |
3214 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3215 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 3216 | redo_body: |
85aaa934 | 3217 | CALLRUNOPS(aTHX); |
312caa8e CS |
3218 | break; |
3219 | case 3: | |
8bffa5f8 | 3220 | /* die caught by an inner eval - continue inner loop */ |
febb3a6d Z |
3221 | if (PL_restartop && PL_restartjmpenv == PL_top_env) { |
3222 | PL_restartjmpenv = NULL; | |
312caa8e CS |
3223 | PL_op = PL_restartop; |
3224 | PL_restartop = 0; | |
3225 | goto redo_body; | |
3226 | } | |
3227 | /* FALL THROUGH */ | |
3228 | default: | |
14dd3ad8 | 3229 | JMPENV_POP; |
533c011a | 3230 | PL_op = oldop; |
6224f72b | 3231 | JMPENV_JUMP(ret); |
1e422769 | 3232 | /* NOTREACHED */ |
1e422769 | 3233 | } |
14dd3ad8 | 3234 | JMPENV_POP; |
533c011a | 3235 | PL_op = oldop; |
5f66b61c | 3236 | return NULL; |
1e422769 | 3237 | } |
3238 | ||
ee23ad3b NC |
3239 | /* James Bond: Do you expect me to talk? |
3240 | Auric Goldfinger: No, Mr. Bond. I expect you to die. | |
3241 | ||
3242 | This code is an ugly hack, doesn't work with lexicals in subroutines that are | |
3243 | called more than once, and is only used by regcomp.c, for (?{}) blocks. | |
3244 | ||
3245 | Currently it is not used outside the core code. Best if it stays that way. | |
d59a8b3e NC |
3246 | |
3247 | Hence it's now deprecated, and will be removed. | |
ee23ad3b | 3248 | */ |
c277df42 | 3249 | OP * |
bfed75c6 | 3250 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
3251 | /* sv Text to convert to OP tree. */ |
3252 | /* startop op_free() this to undo. */ | |
3253 | /* code Short string id of the caller. */ | |
3254 | { | |
d59a8b3e NC |
3255 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
3256 | return Perl_sv_compile_2op_is_broken(aTHX_ sv, startop, code, padp); | |
3257 | } | |
3258 | ||
3259 | /* Don't use this. It will go away without warning once the regexp engine is | |
3260 | refactored not to use it. */ | |
3261 | OP * | |
3262 | Perl_sv_compile_2op_is_broken(pTHX_ SV *sv, OP **startop, const char *code, | |
3263 | PAD **padp) | |
3264 | { | |
27da23d5 | 3265 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
3266 | PERL_CONTEXT *cx; |
3267 | SV **newsp; | |
b094c71d | 3268 | I32 gimme = G_VOID; |
c277df42 IZ |
3269 | I32 optype; |
3270 | OP dummy; | |
83ee9e09 GS |
3271 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
3272 | char *tmpbuf = tbuf; | |
c277df42 | 3273 | char *safestr; |
a3985cdc | 3274 | int runtime; |
601f1833 | 3275 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 3276 | STRLEN len; |
634d6919 | 3277 | bool need_catch; |
c277df42 | 3278 | |
d59a8b3e | 3279 | PERL_ARGS_ASSERT_SV_COMPILE_2OP_IS_BROKEN; |
7918f24d | 3280 | |
d343c3ef | 3281 | ENTER_with_name("eval"); |
27fcb6ee | 3282 | lex_start(sv, NULL, LEX_START_SAME_FILTER); |
c277df42 IZ |
3283 | SAVETMPS; |
3284 | /* switch to eval mode */ | |
3285 | ||
923e4eb5 | 3286 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 3287 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 3288 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 3289 | } |
83ee9e09 | 3290 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 3291 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
3292 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
3293 | code, (unsigned long)++PL_evalseq, | |
3294 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
3295 | tmpbuf = SvPVX(sv); | |
fc009855 | 3296 | len = SvCUR(sv); |
83ee9e09 GS |
3297 | } |
3298 | else | |
d9fad198 JH |
3299 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
3300 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 3301 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3302 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3303 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3304 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
3305 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3306 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3307 | (i.e. before run-time proper). To work around the coredump that | |
3308 | ensues, we always turn GvMULTI_on for any globals that were | |
3309 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3310 | safestr = savepvn(tmpbuf, len); |
3311 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3312 | SAVEHINTS(); |
d1ca3daa | 3313 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3314 | PL_opsave = op; |
d1ca3daa | 3315 | #else |
7766f137 | 3316 | SAVEVPTR(PL_op); |
d1ca3daa | 3317 | #endif |
c277df42 | 3318 | |
a3985cdc | 3319 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 3320 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 3321 | if (runtime) |
558b4424 | 3322 | { |
d819b83a | 3323 | runcv = find_runcv(NULL); |
a3985cdc | 3324 | |
558b4424 FC |
3325 | /* At run time, we have to fetch the hints from PL_curcop. */ |
3326 | PL_hints = PL_curcop->cop_hints; | |
3327 | if (PL_hints & HINT_LOCALIZE_HH) { | |
3328 | /* SAVEHINTS created a new HV in PL_hintgv, which we | |
3329 | need to GC */ | |
3330 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
3331 | GvHV(PL_hintgv) = | |
3332 | refcounted_he_chain_2hv(PL_curcop->cop_hints_hash, 0); | |
3333 | hv_magic(GvHV(PL_hintgv), NULL, PERL_MAGIC_hints); | |
3334 | } | |
3335 | SAVECOMPILEWARNINGS(); | |
3336 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); | |
3337 | cophh_free(CopHINTHASH_get(&PL_compiling)); | |
3338 | /* XXX Does this need to avoid copying a label? */ | |
3339 | PL_compiling.cop_hints_hash | |
3340 | = cophh_copy(PL_curcop->cop_hints_hash); | |
3341 | } | |
3342 | ||
533c011a | 3343 | PL_op = &dummy; |
13b51b79 | 3344 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 3345 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 3346 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 3347 | PUSHEVAL(cx, 0); |
634d6919 GG |
3348 | need_catch = CATCH_GET; |
3349 | CATCH_SET(TRUE); | |
a3985cdc DM |
3350 | |
3351 | if (runtime) | |
410be5db | 3352 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 3353 | else |
410be5db | 3354 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
634d6919 | 3355 | CATCH_SET(need_catch); |
13b51b79 | 3356 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 3357 | POPEVAL(cx); |
c277df42 IZ |
3358 | |
3359 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 3360 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
f3548bdc | 3361 | /* XXX DAPM do this properly one year */ |
502c6561 | 3362 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
d343c3ef | 3363 | LEAVE_with_name("eval"); |
923e4eb5 | 3364 | if (IN_PERL_COMPILETIME) |
623e6609 | 3365 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 3366 | #ifdef OP_IN_REGISTER |
6b88bc9c | 3367 | op = PL_opsave; |
d1ca3daa | 3368 | #endif |
9d4ba2ae AL |
3369 | PERL_UNUSED_VAR(newsp); |
3370 | PERL_UNUSED_VAR(optype); | |
3371 | ||
410be5db | 3372 | return PL_eval_start; |
c277df42 IZ |
3373 | } |
3374 | ||
a3985cdc DM |
3375 | |
3376 | /* | |
3377 | =for apidoc find_runcv | |
3378 | ||
3379 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
3380 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
3381 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
3382 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 3383 | than in the scope of the debugger itself). |
a3985cdc DM |
3384 | |
3385 | =cut | |
3386 | */ | |
3387 | ||
3388 | CV* | |
d819b83a | 3389 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 3390 | { |
97aff369 | 3391 | dVAR; |
a3985cdc | 3392 | PERL_SI *si; |
a3985cdc | 3393 | |
d819b83a DM |
3394 | if (db_seqp) |
3395 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 3396 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 3397 | I32 ix; |
a3985cdc | 3398 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 3399 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 3400 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 3401 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
3402 | /* skip DB:: code */ |
3403 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
3404 | *db_seqp = cx->blk_oldcop->cop_seq; | |
3405 | continue; | |
3406 | } | |
3407 | return cv; | |
3408 | } | |
a3985cdc DM |
3409 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
3410 | return PL_compcv; | |
3411 | } | |
3412 | } | |
3413 | return PL_main_cv; | |
3414 | } | |
3415 | ||
3416 | ||
27e90453 DM |
3417 | /* Run yyparse() in a setjmp wrapper. Returns: |
3418 | * 0: yyparse() successful | |
3419 | * 1: yyparse() failed | |
3420 | * 3: yyparse() died | |
3421 | */ | |
3422 | STATIC int | |
28ac2b49 | 3423 | S_try_yyparse(pTHX_ int gramtype) |
27e90453 DM |
3424 | { |
3425 | int ret; | |
3426 | dJMPENV; | |
3427 | ||
3428 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
3429 | JMPENV_PUSH(ret); | |
3430 | switch (ret) { | |
3431 | case 0: | |
28ac2b49 | 3432 | ret = yyparse(gramtype) ? 1 : 0; |
27e90453 DM |
3433 | break; |
3434 | case 3: | |
3435 | break; | |
3436 | default: | |
3437 | JMPENV_POP; | |
3438 | JMPENV_JUMP(ret); | |
3439 | /* NOTREACHED */ | |
3440 | } | |
3441 | JMPENV_POP; | |
3442 | return ret; | |
3443 | } | |
3444 | ||
3445 | ||
a3985cdc DM |
3446 | /* Compile a require/do, an eval '', or a /(?{...})/. |
3447 | * In the last case, startop is non-null, and contains the address of | |
3448 | * a pointer that should be set to the just-compiled code. | |
3449 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
3450 | * Returns a bool indicating whether the compile was successful; if so, |
3451 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
3452 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
3453 | */ |
3454 | ||
410be5db | 3455 | STATIC bool |
a3985cdc | 3456 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3457 | { |
27da23d5 | 3458 | dVAR; dSP; |
46c461b5 | 3459 | OP * const saveop = PL_op; |
27e90453 DM |
3460 | bool in_require = (saveop && saveop->op_type == OP_REQUIRE); |
3461 | int yystatus; | |
a0d0e21e | 3462 | |
27e90453 | 3463 | PL_in_eval = (in_require |
6dc8a9e4 IZ |
3464 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) |
3465 | : EVAL_INEVAL); | |
a0d0e21e | 3466 | |
1ce6579f | 3467 | PUSHMARK(SP); |
3468 | ||
3280af22 | 3469 | SAVESPTR(PL_compcv); |
ea726b52 | 3470 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3471 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3472 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3473 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
86a64801 | 3474 | cxstack[cxstack_ix].blk_gimme = gimme; |
2090ab20 | 3475 | |
a3985cdc | 3476 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3477 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3478 | |
dd2155a4 | 3479 | /* set up a scratch pad */ |
a0d0e21e | 3480 | |
dd2155a4 | 3481 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3482 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3483 | |
07055b4c | 3484 | |
81d86705 NC |
3485 | if (!PL_madskills) |
3486 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3487 | |
a0d0e21e LW |
3488 | /* make sure we compile in the right package */ |
3489 | ||
ed094faf | 3490 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3491 | SAVESPTR(PL_curstash); |
ed094faf | 3492 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3493 | } |
3c10abe3 | 3494 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3495 | SAVESPTR(PL_beginav); |
3496 | PL_beginav = newAV(); | |
3497 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3498 | SAVESPTR(PL_unitcheckav); |
3499 | PL_unitcheckav = newAV(); | |
3500 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3501 | |
81d86705 | 3502 | #ifdef PERL_MAD |
9da243ce | 3503 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3504 | PL_madskills = 0; |
3505 | #endif | |
3506 | ||
a0d0e21e LW |
3507 | /* try to compile it */ |
3508 | ||
5f66b61c | 3509 | PL_eval_root = NULL; |
3280af22 | 3510 | PL_curcop = &PL_compiling; |
fc15ae8f | 3511 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3512 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3513 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3514 | else |
3515 | CLEAR_ERRSV(); | |
27e90453 | 3516 | |
a88d97bf | 3517 | CALL_BLOCK_HOOKS(bhk_eval, saveop); |
52db365a | 3518 | |
27e90453 DM |
3519 | /* note that yyparse() may raise an exception, e.g. C<BEGIN{die}>, |
3520 | * so honour CATCH_GET and trap it here if necessary */ | |
3521 | ||
28ac2b49 | 3522 | yystatus = (!in_require && CATCH_GET) ? S_try_yyparse(aTHX_ GRAMPROG) : yyparse(GRAMPROG); |
27e90453 DM |
3523 | |
3524 | if (yystatus || PL_parser->error_count || !PL_eval_root) { | |
0c58d367 | 3525 | SV **newsp; /* Used by POPBLOCK. */ |
d164302a | 3526 | PERL_CONTEXT *cx; |
27e90453 | 3527 | I32 optype; /* Used by POPEVAL. */ |
d164302a | 3528 | SV *namesv; |
9d4ba2ae | 3529 | const char *msg; |
bfed75c6 | 3530 | |
d164302a GG |
3531 | cx = NULL; |
3532 | namesv = NULL; | |
27e90453 DM |
3533 | PERL_UNUSED_VAR(newsp); |
3534 | PERL_UNUSED_VAR(optype); | |
3535 | ||
c86ffc32 DM |
3536 | /* note that if yystatus == 3, then the EVAL CX block has already |
3537 | * been popped, and various vars restored */ | |
533c011a | 3538 | PL_op = saveop; |
27e90453 | 3539 | if (yystatus != 3) { |
c86ffc32 DM |
3540 | if (PL_eval_root) { |
3541 | op_free(PL_eval_root); | |
3542 | PL_eval_root = NULL; | |
3543 | } | |
27e90453 DM |
3544 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
3545 | if (!startop) { | |
3546 | POPBLOCK(cx,PL_curpm); | |
3547 | POPEVAL(cx); | |
b6494f15 | 3548 | namesv = cx->blk_eval.old_namesv; |
27e90453 | 3549 | } |
c277df42 | 3550 | } |
27e90453 DM |
3551 | if (yystatus != 3) |
3552 | LEAVE_with_name("eval"); /* pp_entereval knows about this LEAVE. */ | |
9d4ba2ae AL |
3553 | |
3554 | msg = SvPVx_nolen_const(ERRSV); | |
27e90453 | 3555 | if (in_require) { |
b6494f15 VP |
3556 | if (!cx) { |
3557 | /* If cx is still NULL, it means that we didn't go in the | |
3558 | * POPEVAL branch. */ | |
3559 | cx = &cxstack[cxstack_ix]; | |
3560 | assert(CxTYPE(cx) == CXt_EVAL); | |
3561 | namesv = cx->blk_eval.old_namesv; | |
3562 | } | |
3563 | (void)hv_store(GvHVn(PL_incgv), | |
3564 | SvPVX_const(namesv), SvCUR(namesv), | |
3565 | &PL_sv_undef, 0); | |
58d3fd3b SH |
3566 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3567 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3568 | } |
3569 | else if (startop) { | |
27e90453 DM |
3570 | if (yystatus != 3) { |
3571 | POPBLOCK(cx,PL_curpm); | |
3572 | POPEVAL(cx); | |
3573 | } | |
5a844595 GS |
3574 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3575 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3576 | } |
9d7f88dd | 3577 | else { |
9d7f88dd | 3578 | if (!*msg) { |
6502358f | 3579 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3580 | } |
3581 | } | |
410be5db DM |
3582 | PUSHs(&PL_sv_undef); |
3583 | PUTBACK; | |
3584 | return FALSE; | |
a0d0e21e | 3585 | } |
57843af0 | 3586 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3587 | if (startop) { |
3280af22 | 3588 | *startop = PL_eval_root; |
c277df42 | 3589 | } else |
3280af22 | 3590 | SAVEFREEOP(PL_eval_root); |
0c58d367 | 3591 | |
a0d0e21e LW |
3592 | DEBUG_x(dump_eval()); |
3593 | ||
55497cff | 3594 | /* Register with debugger: */ |
6482a30d | 3595 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3596 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3597 | if (cv) { |
3598 | dSP; | |
924508f0 | 3599 | PUSHMARK(SP); |
ad64d0ec | 3600 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3601 | PUTBACK; |
ad64d0ec | 3602 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3603 | } |
3604 | } | |
3605 | ||
8ed49485 FC |
3606 | if (PL_unitcheckav) { |
3607 | OP *es = PL_eval_start; | |
3c10abe3 | 3608 | call_list(PL_scopestack_ix, PL_unitcheckav); |
8ed49485 FC |
3609 | PL_eval_start = es; |
3610 | } | |
3c10abe3 | 3611 | |
a0d0e21e LW |
3612 | /* compiled okay, so do it */ |
3613 | ||
3280af22 NIS |
3614 | CvDEPTH(PL_compcv) = 1; |
3615 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3616 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3617 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3618 | |
410be5db DM |
3619 | PUTBACK; |
3620 | return TRUE; | |
a0d0e21e LW |
3621 | } |
3622 | ||
a6c40364 | 3623 | STATIC PerlIO * |
282b29ee | 3624 | S_check_type_and_open(pTHX_ SV *name) |
ce8abf5f SP |
3625 | { |
3626 | Stat_t st; | |
282b29ee NC |
3627 | const char *p = SvPV_nolen_const(name); |
3628 | const int st_rc = PerlLIO_stat(p, &st); | |
df528165 | 3629 | |
7918f24d NC |
3630 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3631 | ||
6b845e56 | 3632 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3633 | return NULL; |
ce8abf5f SP |
3634 | } |
3635 | ||
ccb84406 NC |
3636 | #if !defined(PERLIO_IS_STDIO) && !defined(USE_SFIO) |
3637 | return PerlIO_openn(aTHX_ NULL, PERL_SCRIPT_MODE, -1, 0, 0, NULL, 1, &name); | |
3638 | #else | |
282b29ee | 3639 | return PerlIO_open(p, PERL_SCRIPT_MODE); |
ccb84406 | 3640 | #endif |
ce8abf5f SP |
3641 | } |
3642 | ||
75c20bac | 3643 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3644 | STATIC PerlIO * |
282b29ee | 3645 | S_doopen_pm(pTHX_ SV *name) |
b295d113 | 3646 | { |
282b29ee NC |
3647 | STRLEN namelen; |
3648 | const char *p = SvPV_const(name, namelen); | |
b295d113 | 3649 | |
7918f24d NC |
3650 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3651 | ||
282b29ee | 3652 | if (namelen > 3 && memEQs(p + namelen - 3, 3, ".pm")) { |
eb70bb4a | 3653 | SV *const pmcsv = sv_newmortal(); |
a6c40364 | 3654 | Stat_t pmcstat; |
50b8ed39 | 3655 | |
eb70bb4a | 3656 | SvSetSV_nosteal(pmcsv,name); |
282b29ee | 3657 | sv_catpvn(pmcsv, "c", 1); |
50b8ed39 | 3658 | |
282b29ee NC |
3659 | if (PerlLIO_stat(SvPV_nolen_const(pmcsv), &pmcstat) >= 0) |
3660 | return check_type_and_open(pmcsv); | |
a6c40364 | 3661 | } |
282b29ee | 3662 | return check_type_and_open(name); |
75c20bac | 3663 | } |
7925835c | 3664 | #else |
282b29ee | 3665 | # define doopen_pm(name) check_type_and_open(name) |
7925835c | 3666 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3667 | |
a0d0e21e LW |
3668 | PP(pp_require) |
3669 | { | |
27da23d5 | 3670 | dVAR; dSP; |
c09156bb | 3671 | register PERL_CONTEXT *cx; |
a0d0e21e | 3672 | SV *sv; |
5c144d81 | 3673 | const char *name; |
6132ea6c | 3674 | STRLEN len; |
4492be7a JM |
3675 | char * unixname; |
3676 | STRLEN unixlen; | |
62f5ad7a | 3677 | #ifdef VMS |
4492be7a | 3678 | int vms_unixname = 0; |
62f5ad7a | 3679 | #endif |
c445ea15 AL |
3680 | const char *tryname = NULL; |
3681 | SV *namesv = NULL; | |
f54cb97a | 3682 | const I32 gimme = GIMME_V; |
bbed91b5 | 3683 | int filter_has_file = 0; |
c445ea15 | 3684 | PerlIO *tryrsfp = NULL; |
34113e50 | 3685 | SV *filter_cache = NULL; |
c445ea15 AL |
3686 | SV *filter_state = NULL; |
3687 | SV *filter_sub = NULL; | |
3688 | SV *hook_sv = NULL; | |
6ec9efec JH |
3689 | SV *encoding; |
3690 | OP *op; | |
a0d0e21e LW |
3691 | |
3692 | sv = POPs; | |
d7aa5382 | 3693 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d086148c | 3694 | sv = sv_2mortal(new_version(sv)); |
d7aa5382 | 3695 | if (!sv_derived_from(PL_patchlevel, "version")) |
ac0e6a2f | 3696 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3697 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3698 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3699 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
e753e3b1 FC |
3700 | SVfARG(sv_2mortal(vnormal(sv))), |
3701 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3702 | ); | |
468aa647 RGS |
3703 | } |
3704 | else { | |
d1029faa JP |
3705 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3706 | I32 first = 0; | |
3707 | AV *lav; | |
3708 | SV * const req = SvRV(sv); | |
85fbaab2 | 3709 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3710 | |
3711 | /* get the left hand term */ | |
502c6561 | 3712 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3713 | |
3714 | first = SvIV(*av_fetch(lav,0,0)); | |
3715 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3716 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3717 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3718 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3719 | ) { | |
3720 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
9d056fb0 FC |
3721 | "%"SVf", stopped", |
3722 | SVfARG(sv_2mortal(vnormal(req))), | |
3723 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3724 | ); | |
d1029faa JP |
3725 | } |
3726 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
af61dbfd | 3727 | SV *hintsv; |
d1029faa JP |
3728 | I32 second = 0; |
3729 | ||
3730 | if (av_len(lav)>=1) | |
3731 | second = SvIV(*av_fetch(lav,1,0)); | |
3732 | ||
3733 | second /= second >= 600 ? 100 : 10; | |
af61dbfd NC |
3734 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.0", |
3735 | (int)first, (int)second); | |
d1029faa JP |
3736 | upg_version(hintsv, TRUE); |
3737 | ||
3738 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3739 | "--this is only %"SVf", stopped", | |
1be7d6f3 FC |
3740 | SVfARG(sv_2mortal(vnormal(req))), |
3741 | SVfARG(sv_2mortal(vnormal(sv_2mortal(hintsv)))), | |
3742 | SVfARG(sv_2mortal(vnormal(PL_patchlevel))) | |
3743 | ); | |
d1029faa JP |
3744 | } |
3745 | } | |
468aa647 | 3746 | } |
d7aa5382 | 3747 | |
7dfde25d | 3748 | RETPUSHYES; |
a0d0e21e | 3749 | } |
5c144d81 | 3750 | name = SvPV_const(sv, len); |
6132ea6c | 3751 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3752 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3753 | TAINT_PROPER("require"); |
4492be7a JM |
3754 | |
3755 | ||
3756 | #ifdef VMS | |
3757 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3758 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3759 | * can result in a module being pulled in more than once. | |
3760 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3761 | * name can be translated to UNIX. | |
3762 | */ | |
3763 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3764 | unixlen = strlen(unixname); | |
3765 | vms_unixname = 1; | |
3766 | } | |
3767 | else | |
3768 | #endif | |
3769 | { | |
3770 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3771 | * through. | |
3772 | */ | |
3773 | unixname = (char *) name; | |
3774 | unixlen = len; | |
3775 | } | |
44f8325f | 3776 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3777 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3778 | unixname, unixlen, 0); | |
44f8325f AL |
3779 | if ( svp ) { |
3780 | if (*svp != &PL_sv_undef) | |
3781 | RETPUSHYES; | |
3782 | else | |
087b5369 RD |
3783 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3784 | "Compilation failed in require", unixname); | |
44f8325f | 3785 | } |
4d8b06f1 | 3786 | } |
a0d0e21e LW |
3787 | |
3788 | /* prepare to compile file */ | |
3789 | ||
be4b629d | 3790 | if (path_is_absolute(name)) { |
282b29ee | 3791 | /* At this point, name is SvPVX(sv) */ |
46fc3d4c | 3792 | tryname = name; |
282b29ee | 3793 | tryrsfp = doopen_pm(sv); |
bf4acbe4 | 3794 | } |
be4b629d | 3795 | if (!tryrsfp) { |
44f8325f | 3796 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3797 | I32 i; |
748a9306 | 3798 | #ifdef VMS |
4492be7a | 3799 | if (vms_unixname) |
46fc3d4c | 3800 | #endif |
3801 | { | |
d0328fd7 | 3802 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3803 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3804 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3805 | |
ad64d0ec | 3806 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3807 | mg_get(dirsv); |
bbed91b5 KF |
3808 | if (SvROK(dirsv)) { |
3809 | int count; | |
a3b58a99 | 3810 | SV **svp; |
bbed91b5 KF |
3811 | SV *loader = dirsv; |
3812 | ||
e14e2dc8 NC |
3813 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3814 | && !sv_isobject(loader)) | |
3815 | { | |
502c6561 | 3816 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3817 | } |
3818 | ||
b900a521 | 3819 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3820 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3821 | tryname = SvPVX_const(namesv); |
c445ea15 | 3822 | tryrsfp = NULL; |
bbed91b5 | 3823 | |
d343c3ef | 3824 | ENTER_with_name("call_INC"); |
bbed91b5 KF |
3825 | SAVETMPS; |
3826 | EXTEND(SP, 2); | |
3827 | ||
3828 | PUSHMARK(SP); | |
3829 | PUSHs(dirsv); | |
3830 | PUSHs(sv); | |
3831 | PUTBACK; | |
e982885c NC |
3832 | if (sv_isobject(loader)) |
3833 | count = call_method("INC", G_ARRAY); | |
3834 | else | |
3835 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3836 | SPAGAIN; |
3837 | ||
3838 | if (count > 0) { | |
3839 | int i = 0; | |
3840 | SV *arg; | |
3841 | ||
3842 | SP -= count - 1; | |
3843 | arg = SP[i++]; | |
3844 | ||
34113e50 NC |
3845 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3846 | && !isGV_with_GP(SvRV(arg))) { | |
3847 | filter_cache = SvRV(arg); | |
74c765eb | 3848 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3849 | |
3850 | if (i < count) { | |
3851 | arg = SP[i++]; | |
3852 | } | |
3853 | } | |
3854 | ||
6e592b3a | 3855 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3856 | arg = SvRV(arg); |
3857 | } | |
3858 | ||
6e592b3a | 3859 | if (isGV_with_GP(arg)) { |
159b6efe | 3860 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3861 | |
3862 | ++filter_has_file; | |
3863 | ||
3864 | if (io) { | |
3865 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3866 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3867 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3868 | } |
0f7de14d NC |
3869 | IoIFP(io) = NULL; |
3870 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3871 | } |
3872 | ||
3873 | if (i < count) { | |
3874 | arg = SP[i++]; | |
3875 | } | |
3876 | } | |
3877 | ||
3878 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3879 | filter_sub = arg; | |
74c765eb | 3880 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3881 | |
3882 | if (i < count) { | |
3883 | filter_state = SP[i]; | |
b37c2d43 | 3884 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3885 | } |
34113e50 | 3886 | } |
bbed91b5 | 3887 | |
34113e50 NC |
3888 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3889 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3890 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3891 | } |
1d06aecd | 3892 | SP--; |
bbed91b5 KF |
3893 | } |
3894 | ||
3895 | PUTBACK; | |
3896 | FREETMPS; | |
d343c3ef | 3897 | LEAVE_with_name("call_INC"); |
bbed91b5 | 3898 | |
c5f55552 NC |
3899 | /* Adjust file name if the hook has set an %INC entry. |
3900 | This needs to happen after the FREETMPS above. */ | |
3901 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3902 | if (svp) | |
3903 | tryname = SvPV_nolen_const(*svp); | |
3904 | ||
bbed91b5 | 3905 | if (tryrsfp) { |
89ccab8c | 3906 | hook_sv = dirsv; |
bbed91b5 KF |
3907 | break; |
3908 | } | |
3909 | ||
3910 | filter_has_file = 0; | |
34113e50 NC |
3911 | if (filter_cache) { |
3912 | SvREFCNT_dec(filter_cache); | |
3913 | filter_cache = NULL; | |
3914 | } | |
bbed91b5 KF |
3915 | if (filter_state) { |
3916 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3917 | filter_state = NULL; |
bbed91b5 KF |
3918 | } |
3919 | if (filter_sub) { | |
3920 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3921 | filter_sub = NULL; |
bbed91b5 KF |
3922 | } |
3923 | } | |
3924 | else { | |
be4b629d | 3925 | if (!path_is_absolute(name) |
be4b629d | 3926 | ) { |
b640a14a NC |
3927 | const char *dir; |
3928 | STRLEN dirlen; | |
3929 | ||
3930 | if (SvOK(dirsv)) { | |
3931 | dir = SvPV_const(dirsv, dirlen); | |
3932 | } else { | |
3933 | dir = ""; | |
3934 | dirlen = 0; | |
3935 | } | |
3936 | ||
e37778c2 | 3937 | #ifdef VMS |
bbed91b5 | 3938 | char *unixdir; |
c445ea15 | 3939 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3940 | continue; |
3941 | sv_setpv(namesv, unixdir); | |
3942 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3943 | #else |
3944 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3945 | if (PL_origfilename[0] && |
3946 | PL_origfilename[1] == ':' && | |
3947 | !(dir[0] && dir[1] == ':')) | |
3948 | Perl_sv_setpvf(aTHX_ namesv, | |
3949 | "%c:%s\\%s", | |
3950 | PL_origfilename[0], | |
3951 | dir, name); | |
3952 | else | |
3953 | Perl_sv_setpvf(aTHX_ namesv, | |
3954 | "%s\\%s", | |
3955 | dir, name); | |
e37778c2 | 3956 | # else |
b640a14a NC |
3957 | /* The equivalent of |
3958 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3959 | but without the need to parse the format string, or | |
3960 | call strlen on either pointer, and with the correct | |
3961 | allocation up front. */ | |
3962 | { | |
3963 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3964 | ||
3965 | memcpy(tmp, dir, dirlen); | |
3966 | tmp +=dirlen; | |
3967 | *tmp++ = '/'; | |
3968 | /* name came from an SV, so it will have a '\0' at the | |
3969 | end that we can copy as part of this memcpy(). */ | |
3970 | memcpy(tmp, name, len + 1); | |
3971 | ||
3972 | SvCUR_set(namesv, dirlen + len + 1); | |
282b29ee | 3973 | SvPOK_on(namesv); |
b640a14a | 3974 | } |
27da23d5 | 3975 | # endif |
bf4acbe4 | 3976 | #endif |
bbed91b5 | 3977 | TAINT_PROPER("require"); |
349d4f2f | 3978 | tryname = SvPVX_const(namesv); |
282b29ee | 3979 | tryrsfp = doopen_pm(namesv); |
bbed91b5 | 3980 | if (tryrsfp) { |
e63be746 RGS |
3981 | if (tryname[0] == '.' && tryname[1] == '/') { |
3982 | ++tryname; | |
3983 | while (*++tryname == '/'); | |
3984 | } | |
bbed91b5 KF |
3985 | break; |
3986 | } | |
ff806af2 DM |
3987 | else if (errno == EMFILE) |
3988 | /* no point in trying other paths if out of handles */ | |
3989 | break; | |
be4b629d | 3990 | } |
46fc3d4c | 3991 | } |
a0d0e21e LW |
3992 | } |
3993 | } | |
3994 | } | |
b2ef6d44 | 3995 | sv_2mortal(namesv); |
a0d0e21e | 3996 | if (!tryrsfp) { |
533c011a | 3997 | if (PL_op->op_type == OP_REQUIRE) { |
e31de809 | 3998 | if(errno == EMFILE) { |
c9d5e35e NC |
3999 | /* diag_listed_as: Can't locate %s */ |
4000 | DIE(aTHX_ "Can't locate %s: %s", name, Strerror(errno)); | |
e31de809 SP |
4001 | } else { |
4002 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 4003 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 4004 | I32 i; |
c9d5e35e NC |
4005 | SV *const inc = newSVpvs_flags("", SVs_TEMP); |
4006 | for (i = 0; i <= AvFILL(ar); i++) { | |
4007 | sv_catpvs(inc, " "); | |
4008 | sv_catsv(inc, *av_fetch(ar, i, TRUE)); | |
4009 | } | |
4010 | ||
4011 | /* diag_listed_as: Can't locate %s */ | |
4012 | DIE(aTHX_ | |
4013 | "Can't locate %s in @INC%s%s (@INC contains:%" SVf ")", | |
4014 | name, | |
686c4ca0 NC |
4015 | (memEQ(name + len - 2, ".h", 3) |
4016 | ? " (change .h to .ph maybe?) (did you run h2ph?)" : ""), | |
4017 | (memEQ(name + len - 3, ".ph", 4) | |
c9d5e35e NC |
4018 | ? " (did you run h2ph?)" : ""), |
4019 | inc | |
4020 | ); | |
4021 | } | |
2683423c | 4022 | } |
c9d5e35e | 4023 | DIE(aTHX_ "Can't locate %s", name); |
a0d0e21e LW |
4024 | } |
4025 | ||
4026 | RETPUSHUNDEF; | |
4027 | } | |
d8bfb8bd | 4028 | else |
93189314 | 4029 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
4030 | |
4031 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 4032 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 4033 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 4034 | if (!hook_sv) { |
4492be7a | 4035 | (void)hv_store(GvHVn(PL_incgv), |
b2ef6d44 | 4036 | unixname, unixlen, newSVpv(tryname,0),0); |
44f8325f | 4037 | } else { |
4492be7a | 4038 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 4039 | if (!svp) |
4492be7a JM |
4040 | (void)hv_store(GvHVn(PL_incgv), |
4041 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 4042 | } |
a0d0e21e | 4043 | |
d343c3ef | 4044 | ENTER_with_name("eval"); |
a0d0e21e | 4045 | SAVETMPS; |
b2ef6d44 FC |
4046 | SAVECOPFILE_FREE(&PL_compiling); |
4047 | CopFILE_set(&PL_compiling, tryname); | |
8eaa0acf | 4048 | lex_start(NULL, tryrsfp, 0); |
e50aee73 | 4049 | |
b3ac6de7 | 4050 | SAVEHINTS(); |
3280af22 | 4051 | PL_hints = 0; |
f747ebd6 | 4052 | hv_clear(GvHV(PL_hintgv)); |
27eaf14c | 4053 | |
68da3b2f | 4054 | SAVECOMPILEWARNINGS(); |
0453d815 | 4055 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 4056 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 4057 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 4058 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 4059 | else |
d3a7d8c7 | 4060 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 4061 | |
34113e50 | 4062 | if (filter_sub || filter_cache) { |
4464f08e NC |
4063 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
4064 | than hanging another SV from it. In turn, filter_add() optionally | |
4065 | takes the SV to use as the filter (or creates a new SV if passed | |
4066 | NULL), so simply pass in whatever value filter_cache has. */ | |
4067 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 4068 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
4069 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
4070 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
4071 | } |
4072 | ||
4073 | /* switch to eval mode */ | |
a0d0e21e | 4074 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 4075 | PUSHEVAL(cx, name); |
f39bc417 | 4076 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 4077 | |
57843af0 GS |
4078 | SAVECOPLINE(&PL_compiling); |
4079 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
4080 | |
4081 | PUTBACK; | |
6ec9efec JH |
4082 | |
4083 | /* Store and reset encoding. */ | |
4084 | encoding = PL_encoding; | |
c445ea15 | 4085 | PL_encoding = NULL; |
6ec9efec | 4086 | |
410be5db DM |
4087 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
4088 | op = DOCATCH(PL_eval_start); | |
4089 | else | |
4090 | op = PL_op->op_next; | |
bfed75c6 | 4091 | |
6ec9efec JH |
4092 | /* Restore encoding. */ |
4093 | PL_encoding = encoding; | |
4094 | ||
4095 | return op; | |
a0d0e21e LW |
4096 | } |
4097 | ||
996c9baa VP |
4098 | /* This is a op added to hold the hints hash for |
4099 | pp_entereval. The hash can be modified by the code | |
4100 | being eval'ed, so we return a copy instead. */ | |
4101 | ||
4102 | PP(pp_hintseval) | |
4103 | { | |
4104 | dVAR; | |
4105 | dSP; | |
defdfed5 | 4106 | mXPUSHs(MUTABLE_SV(hv_copy_hints_hv(MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
4107 | RETURN; |
4108 | } | |
4109 | ||
4110 | ||
a0d0e21e LW |
4111 | PP(pp_entereval) |
4112 | { | |
27da23d5 | 4113 | dVAR; dSP; |
c09156bb | 4114 | register PERL_CONTEXT *cx; |
0d863452 | 4115 | SV *sv; |
890ce7af | 4116 | const I32 gimme = GIMME_V; |
fd06b02c | 4117 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 | 4118 | char tbuf[TYPE_DIGITS(long) + 12]; |
78da7625 | 4119 | bool saved_delete = FALSE; |
83ee9e09 | 4120 | char *tmpbuf = tbuf; |
a0d0e21e | 4121 | STRLEN len; |
a3985cdc | 4122 | CV* runcv; |
d819b83a | 4123 | U32 seq; |
c445ea15 | 4124 | HV *saved_hh = NULL; |
e389bba9 | 4125 | |
0d863452 | 4126 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 4127 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
4128 | } |
4129 | sv = POPs; | |
895b760f DM |
4130 | if (!SvPOK(sv)) { |
4131 | /* make sure we've got a plain PV (no overload etc) before testing | |
4132 | * for taint. Making a copy here is probably overkill, but better | |
4133 | * safe than sorry */ | |
0479a84a NC |
4134 | STRLEN len; |
4135 | const char * const p = SvPV_const(sv, len); | |
4136 | ||
4137 | sv = newSVpvn_flags(p, len, SVs_TEMP | SvUTF8(sv)); | |
895b760f | 4138 | } |
a0d0e21e | 4139 | |
af2d3def | 4140 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 4141 | TAINT_PROPER("eval"); |
a0d0e21e | 4142 | |
d343c3ef | 4143 | ENTER_with_name("eval"); |
27fcb6ee | 4144 | lex_start(sv, NULL, LEX_START_SAME_FILTER); |
748a9306 | 4145 | SAVETMPS; |
ac27b0f5 | 4146 | |
a0d0e21e LW |
4147 | /* switch to eval mode */ |
4148 | ||
83ee9e09 | 4149 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
4150 | SV * const temp_sv = sv_newmortal(); |
4151 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
4152 | (unsigned long)++PL_evalseq, |
4153 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
4154 | tmpbuf = SvPVX(temp_sv); |
4155 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
4156 | } |
4157 | else | |
d9fad198 | 4158 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 4159 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 4160 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 4161 | SAVECOPLINE(&PL_compiling); |
57843af0 | 4162 | CopLINE_set(&PL_compiling, 1); |
55497cff | 4163 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
4164 | deleting the eval's FILEGV from the stash before gv_check() runs | |
4165 | (i.e. before run-time proper). To work around the coredump that | |
4166 | ensues, we always turn GvMULTI_on for any globals that were | |
4167 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 4168 | SAVEHINTS(); |
533c011a | 4169 | PL_hints = PL_op->op_targ; |
cda55376 AV |
4170 | if (saved_hh) { |
4171 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
4172 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
0d863452 | 4173 | GvHV(PL_hintgv) = saved_hh; |
cda55376 | 4174 | } |
68da3b2f | 4175 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 4176 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
20439bc7 | 4177 | cophh_free(CopHINTHASH_get(&PL_compiling)); |
aebc0cbe | 4178 | if (Perl_cop_fetch_label(aTHX_ PL_curcop, NULL, NULL)) { |
47550813 NC |
4179 | /* The label, if present, is the first entry on the chain. So rather |
4180 | than writing a blank label in front of it (which involves an | |
4181 | allocation), just use the next entry in the chain. */ | |
4182 | PL_compiling.cop_hints_hash | |
20439bc7 | 4183 | = cophh_copy(PL_curcop->cop_hints_hash->refcounted_he_next); |
47550813 | 4184 | /* Check the assumption that this removed the label. */ |
aebc0cbe | 4185 | assert(Perl_cop_fetch_label(aTHX_ &PL_compiling, NULL, NULL) == NULL); |
47550813 NC |
4186 | } |
4187 | else | |
20439bc7 | 4188 | PL_compiling.cop_hints_hash = cophh_copy(PL_curcop->cop_hints_hash); |
d819b83a DM |
4189 | /* special case: an eval '' executed within the DB package gets lexically |
4190 | * placed in the first non-DB CV rather than the current CV - this | |
4191 | * allows the debugger to execute code, find lexicals etc, in the | |
4192 | * scope of the code being debugged. Passing &seq gets find_runcv | |
4193 | * to do the dirty work for us */ | |
4194 | runcv = find_runcv(&seq); | |
a0d0e21e | 4195 | |
6b35e009 | 4196 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 4197 | PUSHEVAL(cx, 0); |
f39bc417 | 4198 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
4199 | |
4200 | /* prepare to compile string */ | |
4201 | ||
a44e3ce2 | 4202 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 4203 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
78da7625 FC |
4204 | else { |
4205 | char *const safestr = savepvn(tmpbuf, len); | |
4206 | SAVEDELETE(PL_defstash, safestr, len); | |
4207 | saved_delete = TRUE; | |
4208 | } | |
4209 | ||
a0d0e21e | 4210 | PUTBACK; |
f9bddea7 NC |
4211 | |
4212 | if (doeval(gimme, NULL, runcv, seq)) { | |
4213 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
4214 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4215 | : PERLDB_SAVESRC_NOSUBS) { | |
4216 | /* Retain the filegv we created. */ | |
78da7625 | 4217 | } else if (!saved_delete) { |
f9bddea7 NC |
4218 | char *const safestr = savepvn(tmpbuf, len); |
4219 | SAVEDELETE(PL_defstash, safestr, len); | |
4220 | } | |
4221 | return DOCATCH(PL_eval_start); | |
4222 | } else { | |
486ec47a | 4223 | /* We have already left the scope set up earlier thanks to the LEAVE |
f9bddea7 | 4224 | in doeval(). */ |
eb044b10 NC |
4225 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
4226 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
4227 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 | 4228 | /* Retain the filegv we created. */ |
7857f360 | 4229 | } else if (!saved_delete) { |
f9bddea7 NC |
4230 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); |
4231 | } | |
4232 | return PL_op->op_next; | |
4233 | } | |
a0d0e21e LW |
4234 | } |
4235 | ||
4236 | PP(pp_leaveeval) | |
4237 | { | |
27da23d5 | 4238 | dVAR; dSP; |
a0d0e21e LW |
4239 | SV **newsp; |
4240 | PMOP *newpm; | |
4241 | I32 gimme; | |
c09156bb | 4242 | register PERL_CONTEXT *cx; |
a0d0e21e | 4243 | OP *retop; |
06b5626a | 4244 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e | 4245 | I32 optype; |
b6494f15 | 4246 | SV *namesv; |
a0d0e21e | 4247 | |
011c3814 | 4248 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4249 | POPBLOCK(cx,newpm); |
4250 | POPEVAL(cx); | |
b6494f15 | 4251 | namesv = cx->blk_eval.old_namesv; |
f39bc417 | 4252 | retop = cx->blk_eval.retop; |
a0d0e21e | 4253 | |
a1f49e72 | 4254 | TAINT_NOT; |
b9d76716 VP |
4255 | SP = adjust_stack_on_leave((gimme == G_VOID) ? SP : newsp, SP, newsp, |
4256 | gimme, SVs_TEMP); | |
3280af22 | 4257 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4258 | |
4fdae800 | 4259 | #ifdef DEBUGGING |
3280af22 | 4260 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 4261 | #endif |
3280af22 | 4262 | CvDEPTH(PL_compcv) = 0; |
4fdae800 | 4263 | |
1ce6579f | 4264 | if (optype == OP_REQUIRE && |
924508f0 | 4265 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 4266 | { |
1ce6579f | 4267 | /* Unassume the success we assumed earlier. */ |
b6494f15 VP |
4268 | (void)hv_delete(GvHVn(PL_incgv), |
4269 | SvPVX_const(namesv), SvCUR(namesv), | |
4270 | G_DISCARD); | |
4271 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", | |
4272 | SVfARG(namesv)); | |
c5df3096 | 4273 | /* die_unwind() did LEAVE, or we won't be here */ |
f46d017c GS |
4274 | } |
4275 | else { | |
d343c3ef | 4276 | LEAVE_with_name("eval"); |
8433848b | 4277 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 4278 | CLEAR_ERRSV(); |
8433848b | 4279 | } |
a0d0e21e | 4280 | } |
a0d0e21e LW |
4281 | |
4282 | RETURNOP(retop); | |
4283 | } | |
4284 | ||
edb2152a NC |
4285 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
4286 | close to the related Perl_create_eval_scope. */ | |
4287 | void | |
4288 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 4289 | { |
edb2152a NC |
4290 | SV **newsp; |
4291 | PMOP *newpm; | |
4292 | I32 gimme; | |
c09156bb | 4293 | register PERL_CONTEXT *cx; |
edb2152a NC |
4294 | I32 optype; |
4295 | ||
4296 | POPBLOCK(cx,newpm); | |
4297 | POPEVAL(cx); | |
4298 | PL_curpm = newpm; | |
d343c3ef | 4299 | LEAVE_with_name("eval_scope"); |
edb2152a NC |
4300 | PERL_UNUSED_VAR(newsp); |
4301 | PERL_UNUSED_VAR(gimme); | |
4302 | PERL_UNUSED_VAR(optype); | |
4303 | } | |
a0d0e21e | 4304 | |
edb2152a NC |
4305 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
4306 | also needed by Perl_fold_constants. */ | |
4307 | PERL_CONTEXT * | |
4308 | Perl_create_eval_scope(pTHX_ U32 flags) | |
4309 | { | |
4310 | PERL_CONTEXT *cx; | |
4311 | const I32 gimme = GIMME_V; | |
4312 | ||
d343c3ef | 4313 | ENTER_with_name("eval_scope"); |
a0d0e21e LW |
4314 | SAVETMPS; |
4315 | ||
edb2152a | 4316 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 4317 | PUSHEVAL(cx, 0); |
a0d0e21e | 4318 | |
faef0170 | 4319 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
4320 | if (flags & G_KEEPERR) |
4321 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
4322 | else |
4323 | CLEAR_ERRSV(); | |
edb2152a NC |
4324 | if (flags & G_FAKINGEVAL) { |
4325 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
4326 | } | |
4327 | return cx; | |
4328 | } | |
4329 | ||
4330 | PP(pp_entertry) | |
4331 | { | |
4332 | dVAR; | |
df528165 | 4333 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 4334 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 4335 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
4336 | } |
4337 | ||
4338 | PP(pp_leavetry) | |
4339 | { | |
27da23d5 | 4340 | dVAR; dSP; |
a0d0e21e LW |
4341 | SV **newsp; |
4342 | PMOP *newpm; | |
4343 | I32 gimme; | |
c09156bb | 4344 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
4345 | I32 optype; |
4346 | ||
011c3814 | 4347 | PERL_ASYNC_CHECK(); |
a0d0e21e LW |
4348 | POPBLOCK(cx,newpm); |
4349 | POPEVAL(cx); | |
9d4ba2ae | 4350 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 4351 | |
a1f49e72 | 4352 | TAINT_NOT; |
b9d76716 | 4353 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
3280af22 | 4354 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 4355 | |
d343c3ef | 4356 | LEAVE_with_name("eval_scope"); |
ab69dbc2 | 4357 | CLEAR_ERRSV(); |
745cf2ff | 4358 | RETURN; |
a0d0e21e LW |
4359 | } |
4360 | ||
0d863452 RH |
4361 | PP(pp_entergiven) |
4362 | { | |
4363 | dVAR; dSP; | |
4364 | register PERL_CONTEXT *cx; | |
4365 | const I32 gimme = GIMME_V; | |
4366 | ||
d343c3ef | 4367 | ENTER_with_name("given"); |
0d863452 RH |
4368 | SAVETMPS; |
4369 | ||
f7010667 | 4370 | sv_setsv_mg(PAD_SV(PL_op->op_targ), POPs); |
0d863452 RH |
4371 | |
4372 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
4373 | PUSHGIVEN(cx); | |
4374 | ||
4375 | RETURN; | |
4376 | } | |
4377 | ||
4378 | PP(pp_leavegiven) | |
4379 | { | |
4380 | dVAR; dSP; | |
4381 | register PERL_CONTEXT *cx; | |
4382 | I32 gimme; | |
4383 | SV **newsp; | |
4384 | PMOP *newpm; | |
96a5add6 | 4385 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
4386 | |
4387 | POPBLOCK(cx,newpm); | |
4388 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 | 4389 | |
25b991bf | 4390 | TAINT_NOT; |
b9d76716 | 4391 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); |
25b991bf | 4392 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
0d863452 | 4393 | |
d343c3ef | 4394 | LEAVE_with_name("given"); |
25b991bf | 4395 | RETURN; |
0d863452 RH |
4396 | } |
4397 | ||
4398 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 4399 | STATIC PMOP * |
84679df5 | 4400 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 4401 | { |
97aff369 | 4402 | dVAR; |
0d863452 | 4403 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
4404 | |
4405 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
4406 | ||
d6106309 | 4407 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 4408 | |
0d863452 | 4409 | SAVEFREEOP((OP *) matcher); |
d343c3ef | 4410 | ENTER_with_name("matcher"); SAVETMPS; |
0d863452 RH |
4411 | SAVEOP(); |
4412 | return matcher; | |
4413 | } | |
4414 | ||
4136a0f7 | 4415 | STATIC bool |
0d863452 RH |
4416 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
4417 | { | |
97aff369 | 4418 | dVAR; |
0d863452 | 4419 | dSP; |
7918f24d NC |
4420 | |
4421 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
4422 | |
4423 | PL_op = (OP *) matcher; | |
4424 | XPUSHs(sv); | |
4425 | PUTBACK; | |
897d3989 | 4426 | (void) Perl_pp_match(aTHX); |
0d863452 RH |
4427 | SPAGAIN; |
4428 | return (SvTRUEx(POPs)); | |
4429 | } | |
4430 | ||
4136a0f7 | 4431 | STATIC void |
0d863452 RH |
4432 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4433 | { | |
97aff369 | 4434 | dVAR; |
7918f24d NC |
4435 | |
4436 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4437 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4438 | |
0d863452 | 4439 | FREETMPS; |
d343c3ef | 4440 | LEAVE_with_name("matcher"); |
0d863452 RH |
4441 | } |
4442 | ||
4443 | /* Do a smart match */ | |
4444 | PP(pp_smartmatch) | |
4445 | { | |
d7c0d282 | 4446 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
a0714e2c | 4447 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4448 | } |
4449 | ||
4b021f5f RGS |
4450 | /* This version of do_smartmatch() implements the |
4451 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4452 | */ |
4136a0f7 | 4453 | STATIC OP * |
0d863452 RH |
4454 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4455 | { | |
97aff369 | 4456 | dVAR; |
0d863452 RH |
4457 | dSP; |
4458 | ||
41e726ac | 4459 | bool object_on_left = FALSE; |
0d863452 RH |
4460 | SV *e = TOPs; /* e is for 'expression' */ |
4461 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4462 | |
6f1401dc DM |
4463 | /* Take care only to invoke mg_get() once for each argument. |
4464 | * Currently we do this by copying the SV if it's magical. */ | |
4465 | if (d) { | |
4466 | if (SvGMAGICAL(d)) | |
4467 | d = sv_mortalcopy(d); | |
4468 | } | |
4469 | else | |
4470 | d = &PL_sv_undef; | |
4471 | ||
4472 | assert(e); | |
4473 | if (SvGMAGICAL(e)) | |
4474 | e = sv_mortalcopy(e); | |
4475 | ||
2c9d2554 | 4476 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4477 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4478 | SV * tmpsv; |
4479 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4480 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4481 | ||
4482 | tmpsv = amagic_call(d, e, smart_amg, 0); | |
7c41e62e RGS |
4483 | if (tmpsv) { |
4484 | SPAGAIN; | |
4485 | (void)POPs; | |
4486 | SETs(tmpsv); | |
4487 | RETURN; | |
4488 | } | |
d7c0d282 | 4489 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4490 | } |
62ec5f58 | 4491 | |
0d863452 RH |
4492 | SP -= 2; /* Pop the values */ |
4493 | ||
0d863452 | 4494 | |
b0138e99 | 4495 | /* ~~ undef */ |
62ec5f58 | 4496 | if (!SvOK(e)) { |
d7c0d282 | 4497 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4498 | if (SvOK(d)) |
33570f8b RGS |
4499 | RETPUSHNO; |
4500 | else | |
62ec5f58 | 4501 | RETPUSHYES; |
33570f8b | 4502 | } |
e67b97bd | 4503 | |
d7c0d282 DM |
4504 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4505 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4506 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4507 | } |
41e726ac RGS |
4508 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4509 | object_on_left = TRUE; | |
62ec5f58 | 4510 | |
b0138e99 | 4511 | /* ~~ sub */ |
a4a197da | 4512 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4513 | I32 c; |
41e726ac RGS |
4514 | if (object_on_left) { |
4515 | goto sm_any_sub; /* Treat objects like scalars */ | |
4516 | } | |
4517 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4518 | /* Test sub truth for each key */ |
4519 | HE *he; | |
4520 | bool andedresults = TRUE; | |
4521 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4522 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4523 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4524 | if (numkeys == 0) |
07edf497 | 4525 | RETPUSHYES; |
a4a197da | 4526 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4527 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
d343c3ef | 4528 | ENTER_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4529 | SAVETMPS; |
4530 | PUSHMARK(SP); | |
4531 | PUSHs(hv_iterkeysv(he)); | |
4532 | PUTBACK; | |
4533 | c = call_sv(e, G_SCALAR); | |
4534 | SPAGAIN; | |
4535 | if (c == 0) | |
4536 | andedresults = FALSE; | |
4537 | else | |
4538 | andedresults = SvTRUEx(POPs) && andedresults; | |
4539 | FREETMPS; | |
d343c3ef | 4540 | LEAVE_with_name("smartmatch_hash_key_test"); |
a4a197da RGS |
4541 | } |
4542 | if (andedresults) | |
4543 | RETPUSHYES; | |
4544 | else | |
4545 | RETPUSHNO; | |
4546 | } | |
4547 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4548 | /* Test sub truth for each element */ | |
4549 | I32 i; | |
4550 | bool andedresults = TRUE; | |
4551 | AV *av = (AV*) SvRV(d); | |
4552 | const I32 len = av_len(av); | |
d7c0d282 | 4553 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4554 | if (len == -1) |
07edf497 | 4555 | RETPUSHYES; |
a4a197da RGS |
4556 | for (i = 0; i <= len; ++i) { |
4557 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4558 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
d343c3ef | 4559 | ENTER_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4560 | SAVETMPS; |
4561 | PUSHMARK(SP); | |
4562 | if (svp) | |
4563 | PUSHs(*svp); | |
4564 | PUTBACK; | |
4565 | c = call_sv(e, G_SCALAR); | |
4566 | SPAGAIN; | |
4567 | if (c == 0) | |
4568 | andedresults = FALSE; | |
4569 | else | |
4570 | andedresults = SvTRUEx(POPs) && andedresults; | |
4571 | FREETMPS; | |
d343c3ef | 4572 | LEAVE_with_name("smartmatch_array_elem_test"); |
a4a197da RGS |
4573 | } |
4574 | if (andedresults) | |
4575 | RETPUSHYES; | |
4576 | else | |
4577 | RETPUSHNO; | |
4578 | } | |
4579 | else { | |
41e726ac | 4580 | sm_any_sub: |
d7c0d282 | 4581 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
d343c3ef | 4582 | ENTER_with_name("smartmatch_coderef"); |
a4a197da RGS |
4583 | SAVETMPS; |
4584 | PUSHMARK(SP); | |
4585 | PUSHs(d); | |
4586 | PUTBACK; | |
4587 | c = call_sv(e, G_SCALAR); | |
4588 | SPAGAIN; | |
4589 | if (c == 0) | |
4590 | PUSHs(&PL_sv_no); | |
4591 | else if (SvTEMP(TOPs)) | |
4592 | SvREFCNT_inc_void(TOPs); | |
4593 | FREETMPS; | |
d343c3ef | 4594 | LEAVE_with_name("smartmatch_coderef"); |
a4a197da RGS |
4595 | RETURN; |
4596 | } | |
0d863452 | 4597 | } |
b0138e99 | 4598 | /* ~~ %hash */ |
61a621c6 | 4599 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4600 | if (object_on_left) { |
4601 | goto sm_any_hash; /* Treat objects like scalars */ | |
4602 | } | |
4603 | else if (!SvOK(d)) { | |
d7c0d282 | 4604 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4605 | RETPUSHNO; |
4606 | } | |
4607 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4608 | /* Check that the key-sets are identical */ |
4609 | HE *he; | |
61a621c6 | 4610 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4611 | bool tied = FALSE; |
4612 | bool other_tied = FALSE; | |
4613 | U32 this_key_count = 0, | |
4614 | other_key_count = 0; | |
33ed63a2 | 4615 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4616 | |
4617 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4618 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4619 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4620 | tied = TRUE; |
4621 | } | |
ad64d0ec | 4622 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4623 | HV * const temp = other_hv; |
33ed63a2 RGS |
4624 | other_hv = hv; |
4625 | hv = temp; | |
0d863452 RH |
4626 | tied = TRUE; |
4627 | } | |
ad64d0ec | 4628 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4629 | other_tied = TRUE; |
4630 | ||
33ed63a2 | 4631 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4632 | RETPUSHNO; |
4633 | ||
4634 | /* The hashes have the same number of keys, so it suffices | |
4635 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4636 | (void) hv_iterinit(hv); |
4637 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4638 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4639 | |
4640 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4641 | ++ this_key_count; |
4642 | ||
b15feb55 | 4643 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4644 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4645 | RETPUSHNO; |
4646 | } | |
4647 | } | |
4648 | ||
4649 | if (other_tied) { | |
4650 | (void) hv_iterinit(other_hv); | |
4651 | while ( hv_iternext(other_hv) ) | |
4652 | ++other_key_count; | |
4653 | } | |
4654 | else | |
4655 | other_key_count = HvUSEDKEYS(other_hv); | |
4656 | ||
4657 | if (this_key_count != other_key_count) | |
4658 | RETPUSHNO; | |
4659 | else | |
4660 | RETPUSHYES; | |
4661 | } | |
61a621c6 RGS |
4662 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4663 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4664 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4665 | I32 i; |
33ed63a2 | 4666 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4667 | |
d7c0d282 | 4668 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4669 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4670 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4671 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4672 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4673 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4674 | RETPUSHYES; |
4675 | } | |
0d863452 | 4676 | } |
71b0fb34 | 4677 | RETPUSHNO; |
0d863452 | 4678 | } |
a566f585 | 4679 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4680 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4681 | sm_regex_hash: |
4682 | { | |
4683 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4684 | HE *he; | |
4685 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4686 | ||
4687 | (void) hv_iterinit(hv); | |
4688 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4689 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4690 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4691 | (void) hv_iterinit(hv); | |
4692 | destroy_matcher(matcher); | |
4693 | RETPUSHYES; | |
4694 | } | |
0d863452 | 4695 | } |
ea0c2dbd RGS |
4696 | destroy_matcher(matcher); |
4697 | RETPUSHNO; | |
0d863452 | 4698 | } |
0d863452 RH |
4699 | } |
4700 | else { | |
41e726ac | 4701 | sm_any_hash: |
d7c0d282 | 4702 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4703 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4704 | RETPUSHYES; |
4705 | else | |
4706 | RETPUSHNO; | |
4707 | } | |
4708 | } | |
b0138e99 RGS |
4709 | /* ~~ @array */ |
4710 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4711 | if (object_on_left) { |
4712 | goto sm_any_array; /* Treat objects like scalars */ | |
4713 | } | |
4714 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4715 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4716 | const I32 other_len = av_len(other_av) + 1; | |
4717 | I32 i; | |
4718 | ||
d7c0d282 | 4719 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4720 | for (i = 0; i < other_len; ++i) { |
4721 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4722 | |
4723 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4724 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4725 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4726 | RETPUSHYES; |
4727 | } | |
4728 | } | |
4729 | RETPUSHNO; | |
4730 | } | |
4731 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4732 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4733 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4734 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4735 | RETPUSHNO; |
4736 | else { | |
4737 | I32 i; | |
c445ea15 | 4738 | const I32 other_len = av_len(other_av); |
0d863452 | 4739 | |
a0714e2c | 4740 | if (NULL == seen_this) { |
0d863452 | 4741 | seen_this = newHV(); |
ad64d0ec | 4742 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4743 | } |
a0714e2c | 4744 | if (NULL == seen_other) { |
6bc991bf | 4745 | seen_other = newHV(); |
ad64d0ec | 4746 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4747 | } |
4748 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4749 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4750 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4751 | ||
0d863452 | 4752 | if (!this_elem || !other_elem) { |
69c3dccf RGS |
4753 | if ((this_elem && SvOK(*this_elem)) |
4754 | || (other_elem && SvOK(*other_elem))) | |
0d863452 RH |
4755 | RETPUSHNO; |
4756 | } | |
365c4e3d RGS |
4757 | else if (hv_exists_ent(seen_this, |
4758 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4759 | hv_exists_ent(seen_other, | |
4760 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4761 | { |
4762 | if (*this_elem != *other_elem) | |
4763 | RETPUSHNO; | |
4764 | } | |
4765 | else { | |
04fe65b0 RGS |
4766 | (void)hv_store_ent(seen_this, |
4767 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4768 | &PL_sv_undef, 0); | |
4769 | (void)hv_store_ent(seen_other, | |
4770 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4771 | &PL_sv_undef, 0); | |
0d863452 | 4772 | PUSHs(*other_elem); |
a566f585 | 4773 | PUSHs(*this_elem); |
0d863452 RH |
4774 | |
4775 | PUTBACK; | |
d7c0d282 | 4776 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
0d863452 RH |
4777 | (void) do_smartmatch(seen_this, seen_other); |
4778 | SPAGAIN; | |
d7c0d282 | 4779 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4780 | |
4781 | if (!SvTRUEx(POPs)) | |
4782 | RETPUSHNO; | |
4783 | } | |
4784 | } | |
4785 | RETPUSHYES; | |
4786 | } | |
4787 | } | |
a566f585 | 4788 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4789 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4790 | sm_regex_array: |
4791 | { | |
4792 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4793 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4794 | I32 i; | |
0d863452 | 4795 | |
ea0c2dbd RGS |
4796 | for(i = 0; i <= this_len; ++i) { |
4797 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4798 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4799 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4800 | destroy_matcher(matcher); | |
4801 | RETPUSHYES; | |
4802 | } | |
0d863452 | 4803 | } |
ea0c2dbd RGS |
4804 | destroy_matcher(matcher); |
4805 | RETPUSHNO; | |
0d863452 | 4806 | } |
0d863452 | 4807 | } |
015eb7b9 RGS |
4808 | else if (!SvOK(d)) { |
4809 | /* undef ~~ array */ | |
4810 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4811 | I32 i; |
4812 | ||
d7c0d282 | 4813 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4814 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4815 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4816 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4817 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4818 | RETPUSHYES; |
4819 | } | |
4820 | RETPUSHNO; | |
4821 | } | |
015eb7b9 | 4822 | else { |
41e726ac RGS |
4823 | sm_any_array: |
4824 | { | |
4825 | I32 i; | |
4826 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4827 | |
d7c0d282 | 4828 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4829 | for (i = 0; i <= this_len; ++i) { |
4830 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4831 | if (!svp) | |
4832 | continue; | |
015eb7b9 | 4833 | |
41e726ac RGS |
4834 | PUSHs(d); |
4835 | PUSHs(*svp); | |
4836 | PUTBACK; | |
4837 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4838 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
41e726ac RGS |
4839 | (void) do_smartmatch(NULL, NULL); |
4840 | SPAGAIN; | |
d7c0d282 | 4841 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4842 | if (SvTRUEx(POPs)) |
4843 | RETPUSHYES; | |
4844 | } | |
4845 | RETPUSHNO; | |
0d863452 | 4846 | } |
0d863452 RH |
4847 | } |
4848 | } | |
b0138e99 | 4849 | /* ~~ qr// */ |
a566f585 | 4850 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4851 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4852 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4853 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4854 | goto sm_regex_hash; |
4855 | } | |
4856 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4857 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4858 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4859 | goto sm_regex_array; |
4860 | } | |
4861 | else { | |
4862 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4863 | |
d7c0d282 | 4864 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4865 | PUTBACK; |
4866 | PUSHs(matcher_matches_sv(matcher, d) | |
4867 | ? &PL_sv_yes | |
4868 | : &PL_sv_no); | |
4869 | destroy_matcher(matcher); | |
4870 | RETURN; | |
4871 | } | |
0d863452 | 4872 | } |
b0138e99 | 4873 | /* ~~ scalar */ |
2c9d2554 RGS |
4874 | /* See if there is overload magic on left */ |
4875 | else if (object_on_left && SvAMAGIC(d)) { | |
4876 | SV *tmpsv; | |
d7c0d282 DM |
4877 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4878 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4879 | PUSHs(d); PUSHs(e); |
4880 | PUTBACK; | |
4881 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4882 | if (tmpsv) { | |
4883 | SPAGAIN; | |
4884 | (void)POPs; | |
4885 | SETs(tmpsv); | |
4886 | RETURN; | |
4887 | } | |
4888 | SP -= 2; | |
d7c0d282 | 4889 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4890 | goto sm_any_scalar; |
4891 | } | |
fb51372e RGS |
4892 | else if (!SvOK(d)) { |
4893 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4894 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4895 | RETPUSHNO; |
4896 | } | |
2c9d2554 RGS |
4897 | else |
4898 | sm_any_scalar: | |
4899 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4900 | DEBUG_M(if (SvNIOK(e)) |
4901 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4902 | else | |
4903 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4904 | ); | |
33ed63a2 | 4905 | /* numeric comparison */ |
0d863452 RH |
4906 | PUSHs(d); PUSHs(e); |
4907 | PUTBACK; | |
a98fe34d | 4908 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
897d3989 | 4909 | (void) Perl_pp_i_eq(aTHX); |
0d863452 | 4910 | else |
897d3989 | 4911 | (void) Perl_pp_eq(aTHX); |
0d863452 RH |
4912 | SPAGAIN; |
4913 | if (SvTRUEx(POPs)) | |
4914 | RETPUSHYES; | |
4915 | else | |
4916 | RETPUSHNO; | |
4917 | } | |
4918 | ||
4919 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4920 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4921 | PUSHs(d); PUSHs(e); |
4922 | PUTBACK; | |
897d3989 | 4923 | return Perl_pp_seq(aTHX); |
0d863452 RH |
4924 | } |
4925 | ||
4926 | PP(pp_enterwhen) | |
4927 | { | |
4928 | dVAR; dSP; | |
4929 | register PERL_CONTEXT *cx; | |
4930 | const I32 gimme = GIMME_V; | |
4931 | ||
4932 | /* This is essentially an optimization: if the match | |
4933 | fails, we don't want to push a context and then | |
4934 | pop it again right away, so we skip straight | |
4935 | to the op that follows the leavewhen. | |
25b991bf | 4936 | RETURNOP calls PUTBACK which restores the stack pointer after the POPs. |
0d863452 RH |
4937 | */ |
4938 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
25b991bf | 4939 | RETURNOP(cLOGOP->op_other->op_next); |
0d863452 | 4940 | |
c08f093b | 4941 | ENTER_with_name("when"); |
0d863452 RH |
4942 | SAVETMPS; |
4943 | ||
4944 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4945 | PUSHWHEN(cx); | |
4946 | ||
4947 | RETURN; | |
4948 | } | |
4949 | ||
4950 | PP(pp_leavewhen) | |
4951 | { | |
4952 | dVAR; dSP; | |
c08f093b | 4953 | I32 cxix; |
0d863452 | 4954 | register PERL_CONTEXT *cx; |
c08f093b | 4955 | I32 gimme; |
0d863452 RH |
4956 | SV **newsp; |
4957 | PMOP *newpm; | |
4958 | ||
c08f093b VP |
4959 | cxix = dopoptogiven(cxstack_ix); |
4960 | if (cxix < 0) | |
4961 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4962 | ||
0d863452 RH |
4963 | POPBLOCK(cx,newpm); |
4964 | assert(CxTYPE(cx) == CXt_WHEN); | |
4965 | ||
c08f093b VP |
4966 | TAINT_NOT; |
4967 | SP = adjust_stack_on_leave(newsp, SP, newsp, gimme, SVs_PADTMP|SVs_TEMP); | |
0d863452 RH |
4968 | PL_curpm = newpm; /* pop $1 et al */ |
4969 | ||
c08f093b VP |
4970 | LEAVE_with_name("when"); |
4971 | ||
4972 | if (cxix < cxstack_ix) | |
4973 | dounwind(cxix); | |
4974 | ||
4975 | cx = &cxstack[cxix]; | |
4976 | ||
4977 | if (CxFOREACH(cx)) { | |
4978 | /* clear off anything above the scope we're re-entering */ | |
4979 | I32 inner = PL_scopestack_ix; | |
4980 | ||
4981 | TOPBLOCK(cx); | |
4982 | if (PL_scopestack_ix < inner) | |
4983 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4984 | PL_curcop = cx->blk_oldcop; | |
4985 | ||
4986 | return cx->blk_loop.my_op->op_nextop; | |
4987 | } | |
4988 | else | |
b1b5a4ae | 4989 | RETURNOP(cx->blk_givwhen.leave_op); |
0d863452 RH |
4990 | } |
4991 | ||
4992 | PP(pp_continue) | |
4993 | { | |
c08f093b | 4994 | dVAR; dSP; |
0d863452 RH |
4995 | I32 cxix; |
4996 | register PERL_CONTEXT *cx; | |
c08f093b VP |
4997 | I32 gimme; |
4998 | SV **newsp; | |
4999 | PMOP *newpm; | |
7be5bd17 FR |
5000 | |
5001 | PERL_UNUSED_VAR(gimme); | |
0d863452 RH |
5002 | |
5003 | cxix = dopoptowhen(cxstack_ix); | |
5004 | if (cxix < 0) | |
5005 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
c08f093b | 5006 | |
0d863452 RH |
5007 | if (cxix < cxstack_ix) |
5008 | dounwind(cxix); | |
5009 | ||
c08f093b VP |
5010 | POPBLOCK(cx,newpm); |
5011 | assert(CxTYPE(cx) == CXt_WHEN); | |
5012 | ||
5013 | SP = newsp; | |
5014 | PL_curpm = newpm; /* pop $1 et al */ | |
5015 | ||
5016 | LEAVE_with_name("when"); | |
5017 | RETURNOP(cx->blk_givwhen.leave_op->op_next); | |
0d863452 RH |
5018 | } |
5019 | ||
5020 | PP(pp_break) | |
5021 | { | |
5022 | dVAR; | |
5023 | I32 cxix; | |
5024 | register PERL_CONTEXT *cx; | |
25b991bf | 5025 | |
0d863452 | 5026 | cxix = dopoptogiven(cxstack_ix); |
c08f093b VP |
5027 | if (cxix < 0) |
5028 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
5029 | ||
5030 | cx = &cxstack[cxix]; | |
5031 | if (CxFOREACH(cx)) | |
0d863452 RH |
5032 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); |
5033 | ||
5034 | if (cxix < cxstack_ix) | |
5035 | dounwind(cxix); | |
0d863452 | 5036 | |
0787ea8a VP |
5037 | /* Restore the sp at the time we entered the given block */ |
5038 | TOPBLOCK(cx); | |
5039 | ||
c08f093b | 5040 | return cx->blk_givwhen.leave_op; |
0d863452 RH |
5041 | } |
5042 | ||
74e0ddf7 | 5043 | static MAGIC * |
cea2e8a9 | 5044 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
5045 | { |
5046 | STRLEN len; | |
37ffbfcc | 5047 | register char *s = SvPV(sv, len); |
3808a683 | 5048 | register char *send; |
086b26f3 DM |
5049 | register char *base = NULL; /* start of current field */ |
5050 | register I32 skipspaces = 0; /* number of contiguous spaces seen */ | |
5051 | bool noblank = FALSE; /* ~ or ~~ seen on this line */ | |
5052 | bool repeat = FALSE; /* ~~ seen on this line */ | |
5053 | bool postspace = FALSE; /* a text field may need right padding */ | |
dea28490 JJ |
5054 | U32 *fops; |
5055 | register U32 *fpc; | |
086b26f3 | 5056 | U32 *linepc = NULL; /* position of last FF_LINEMARK */ |
a0d0e21e | 5057 | register I32 arg; |
086b26f3 DM |
5058 | bool ischop; /* it's a ^ rather than a @ */ |
5059 | bool unchopnum = FALSE; /* at least one @ (i.e. non-chop) num field seen */ | |
a1b95068 | 5060 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ |
3808a683 DM |
5061 | MAGIC *mg = NULL; |
5062 | SV *sv_copy; | |
a0d0e21e | 5063 | |
7918f24d NC |
5064 | PERL_ARGS_ASSERT_DOPARSEFORM; |
5065 | ||
55497cff | 5066 | if (len == 0) |
cea2e8a9 | 5067 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 5068 | |
3808a683 DM |
5069 | if (SvTYPE(sv) >= SVt_PVMG) { |
5070 | /* This might, of course, still return NULL. */ | |
5071 | mg = mg_find(sv, PERL_MAGIC_fm); | |
5072 | } else { | |
5073 | sv_upgrade(sv, SVt_PVMG); | |
5074 | } | |
5075 | ||
5076 | if (mg) { | |
5077 | /* still the same as previously-compiled string? */ | |
5078 | SV *old = mg->mg_obj; | |
5079 | if ( !(!!SvUTF8(old) ^ !!SvUTF8(sv)) | |
5080 | && len == SvCUR(old) | |
5081 | && strnEQ(SvPVX(old), SvPVX(sv), len) | |
b57b1734 DM |
5082 | ) { |
5083 | DEBUG_f(PerlIO_printf(Perl_debug_log,"Re-using compiled format\n")); | |
3808a683 | 5084 | return mg; |
b57b1734 | 5085 | } |
3808a683 | 5086 | |
b57b1734 | 5087 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Re-compiling format\n")); |
3808a683 DM |
5088 | Safefree(mg->mg_ptr); |
5089 | mg->mg_ptr = NULL; | |
5090 | SvREFCNT_dec(old); | |
5091 | mg->mg_obj = NULL; | |
5092 | } | |
b57b1734 DM |
5093 | else { |
5094 | DEBUG_f(PerlIO_printf(Perl_debug_log, "Compiling format\n")); | |
3808a683 | 5095 | mg = sv_magicext(sv, NULL, PERL_MAGIC_fm, &PL_vtbl_fm, NULL, 0); |
b57b1734 | 5096 | } |
3808a683 DM |
5097 | |
5098 | sv_copy = newSVpvn_utf8(s, len, SvUTF8(sv)); | |
5099 | s = SvPV(sv_copy, len); /* work on the copy, not the original */ | |
5100 | send = s + len; | |
5101 | ||
5102 | ||
815f25c6 DM |
5103 | /* estimate the buffer size needed */ |
5104 | for (base = s; s <= send; s++) { | |
a1b95068 | 5105 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
5106 | maxops += 10; |
5107 | } | |
5108 | s = base; | |
c445ea15 | 5109 | base = NULL; |
815f25c6 | 5110 | |
a02a5408 | 5111 | Newx(fops, maxops, U32); |
a0d0e21e LW |
5112 | fpc = fops; |
5113 | ||
5114 | if (s < send) { | |
5115 | linepc = fpc; | |
5116 | *fpc++ = FF_LINEMARK; | |
5117 | noblank = repeat = FALSE; | |
5118 | base = s; | |
5119 | } | |
5120 | ||
5121 | while (s <= send) { | |
5122 | switch (*s++) { | |
5123 | default: | |
5124 | skipspaces = 0; | |
5125 | continue; | |
5126 | ||
5127 | case '~': | |
5128 | if (*s == '~') { | |
5129 | repeat = TRUE; | |
b57b1734 DM |
5130 | skipspaces++; |
5131 | s++; | |
a0d0e21e LW |
5132 | } |
5133 | noblank = TRUE; | |
a0d0e21e LW |
5134 | /* FALL THROUGH */ |
5135 | case ' ': case '\t': | |
5136 | skipspaces++; | |
5137 | continue; | |
a1b95068 WL |
5138 | case 0: |
5139 | if (s < send) { | |
5140 | skipspaces = 0; | |
5141 | continue; | |
5142 | } /* else FALL THROUGH */ | |
5143 | case '\n': | |
a0d0e21e LW |
5144 | arg = s - base; |
5145 | skipspaces++; | |
5146 | arg -= skipspaces; | |
5147 | if (arg) { | |
5f05dabc | 5148 | if (postspace) |
a0d0e21e | 5149 | *fpc++ = FF_SPACE; |
a0d0e21e | 5150 | *fpc++ = FF_LITERAL; |
76912796 | 5151 | *fpc++ = (U32)arg; |
a0d0e21e | 5152 | } |
5f05dabc | 5153 | postspace = FALSE; |
a0d0e21e LW |
5154 | if (s <= send) |
5155 | skipspaces--; | |
5156 | if (skipspaces) { | |
5157 | *fpc++ = FF_SKIP; | |
76912796 | 5158 | *fpc++ = (U32)skipspaces; |
a0d0e21e LW |
5159 | } |
5160 | skipspaces = 0; | |
5161 | if (s <= send) | |
5162 | *fpc++ = FF_NEWLINE; | |
5163 | if (noblank) { | |
5164 | *fpc++ = FF_BLANK; | |
5165 | if (repeat) | |
5166 | arg = fpc - linepc + 1; | |
5167 | else | |
5168 | arg = 0; | |
76912796 | 5169 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5170 | } |
5171 | if (s < send) { | |
5172 | linepc = fpc; | |
5173 | *fpc++ = FF_LINEMARK; | |
5174 | noblank = repeat = FALSE; | |
5175 | base = s; | |
5176 | } | |
5177 | else | |
5178 | s++; | |
5179 | continue; | |
5180 | ||
5181 | case '@': | |
5182 | case '^': | |
5183 | ischop = s[-1] == '^'; | |
5184 | ||
5185 | if (postspace) { | |
5186 | *fpc++ = FF_SPACE; | |
5187 | postspace = FALSE; | |
5188 | } | |
5189 | arg = (s - base) - 1; | |
5190 | if (arg) { | |
5191 | *fpc++ = FF_LITERAL; | |
76912796 | 5192 | *fpc++ = (U32)arg; |
a0d0e21e LW |
5193 | } |
5194 | ||
5195 | base = s - 1; | |
5196 | *fpc++ = FF_FETCH; | |
086b26f3 | 5197 | if (*s == '*') { /* @* or ^* */ |
a0d0e21e | 5198 | s++; |
a1b95068 WL |
5199 | *fpc++ = 2; /* skip the @* or ^* */ |
5200 | if (ischop) { | |
5201 | *fpc++ = FF_LINESNGL; | |
5202 | *fpc++ = FF_CHOP; | |
5203 | } else | |
5204 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e | 5205 | } |
086b26f3 | 5206 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { /* @###, ^### */ |
a701009a | 5207 | arg = ischop ? FORM_NUM_BLANK : 0; |
a0d0e21e LW |
5208 | base = s - 1; |
5209 | while (*s == '#') | |
5210 | s++; | |
5211 | if (*s == '.') { | |
06b5626a | 5212 | const char * const f = ++s; |
a0d0e21e LW |
5213 | while (*s == '#') |
5214 | s++; | |
a701009a | 5215 | arg |= FORM_NUM_POINT + (s - f); |
a0d0e21e LW |
5216 | } |
5217 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5218 | *fpc++ = FF_DECIMAL; | |
76912796 | 5219 | *fpc++ = (U32)arg; |
a1b95068 | 5220 | unchopnum |= ! ischop; |
784707d5 JP |
5221 | } |
5222 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
a701009a | 5223 | arg = ischop ? FORM_NUM_BLANK : 0; |
784707d5 JP |
5224 | base = s - 1; |
5225 | s++; /* skip the '0' first */ | |
5226 | while (*s == '#') | |
5227 | s++; | |
5228 | if (*s == '.') { | |
06b5626a | 5229 | const char * const f = ++s; |
784707d5 JP |
5230 | while (*s == '#') |
5231 | s++; | |
a701009a | 5232 | arg |= FORM_NUM_POINT + (s - f); |
784707d5 JP |
5233 | } |
5234 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5235 | *fpc++ = FF_0DECIMAL; | |
76912796 | 5236 | *fpc++ = (U32)arg; |
a1b95068 | 5237 | unchopnum |= ! ischop; |
a0d0e21e | 5238 | } |
086b26f3 | 5239 | else { /* text field */ |
a0d0e21e LW |
5240 | I32 prespace = 0; |
5241 | bool ismore = FALSE; | |
5242 | ||
5243 | if (*s == '>') { | |
5244 | while (*++s == '>') ; | |
5245 | prespace = FF_SPACE; | |
5246 | } | |
5247 | else if (*s == '|') { | |
5248 | while (*++s == '|') ; | |
5249 | prespace = FF_HALFSPACE; | |
5250 | postspace = TRUE; | |
5251 | } | |
5252 | else { | |
5253 | if (*s == '<') | |
5254 | while (*++s == '<') ; | |
5255 | postspace = TRUE; | |
5256 | } | |
5257 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
5258 | s += 3; | |
5259 | ismore = TRUE; | |
5260 | } | |
5261 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
5262 | ||
5263 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
5264 | ||
5265 | if (prespace) | |
76912796 | 5266 | *fpc++ = (U32)prespace; /* add SPACE or HALFSPACE */ |
a0d0e21e LW |
5267 | *fpc++ = FF_ITEM; |
5268 | if (ismore) | |
5269 | *fpc++ = FF_MORE; | |
5270 | if (ischop) | |
5271 | *fpc++ = FF_CHOP; | |
5272 | } | |
5273 | base = s; | |
5274 | skipspaces = 0; | |
5275 | continue; | |
5276 | } | |
5277 | } | |
5278 | *fpc++ = FF_END; | |
5279 | ||
815f25c6 | 5280 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e | 5281 | arg = fpc - fops; |
74e0ddf7 | 5282 | |
3808a683 | 5283 | mg->mg_ptr = (char *) fops; |
74e0ddf7 | 5284 | mg->mg_len = arg * sizeof(U32); |
3808a683 DM |
5285 | mg->mg_obj = sv_copy; |
5286 | mg->mg_flags |= MGf_REFCOUNTED; | |
a1b95068 | 5287 | |
bfed75c6 | 5288 | if (unchopnum && repeat) |
75f63940 | 5289 | Perl_die(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
74e0ddf7 NC |
5290 | |
5291 | return mg; | |
a1b95068 WL |
5292 | } |
5293 | ||
5294 | ||
5295 | STATIC bool | |
5296 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
5297 | { | |
5298 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
5299 | NV pwr = 1; | |
5300 | NV eps = 0.5; | |
5301 | bool res = FALSE; | |
5302 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
5303 | ||
a701009a | 5304 | if (frcsize & FORM_NUM_POINT) |
a1b95068 | 5305 | intsize--; |
a701009a | 5306 | frcsize &= ~(FORM_NUM_POINT|FORM_NUM_BLANK); |
a1b95068 WL |
5307 | intsize -= frcsize; |
5308 | ||
5309 | while (intsize--) pwr *= 10.0; | |
5310 | while (frcsize--) eps /= 10.0; | |
5311 | ||
5312 | if( value >= 0 ){ | |
5313 | if (value + eps >= pwr) | |
5314 | res = TRUE; | |
5315 | } else { | |
5316 | if (value - eps <= -pwr) | |
5317 | res = TRUE; | |
5318 | } | |
5319 | return res; | |
a0d0e21e | 5320 | } |
4e35701f | 5321 | |
bbed91b5 | 5322 | static I32 |
0bd48802 | 5323 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 5324 | { |
27da23d5 | 5325 | dVAR; |
0bd48802 | 5326 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 5327 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
5328 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
5329 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 5330 | int status = 0; |
ec0b63d7 | 5331 | SV *upstream; |
941a98a0 | 5332 | STRLEN got_len; |
162177c1 Z |
5333 | char *got_p = NULL; |
5334 | char *prune_from = NULL; | |
34113e50 | 5335 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
5336 | STRLEN umaxlen; |
5337 | ||
7918f24d NC |
5338 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
5339 | ||
bb7a0f54 MHM |
5340 | assert(maxlen >= 0); |
5341 | umaxlen = maxlen; | |
5675696b | 5342 | |
bbed91b5 KF |
5343 | /* I was having segfault trouble under Linux 2.2.5 after a |
5344 | parse error occured. (Had to hack around it with a test | |
13765c85 | 5345 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
5346 | not sure where the trouble is yet. XXX */ |
5347 | ||
4464f08e NC |
5348 | { |
5349 | SV *const cache = datasv; | |
937b367d NC |
5350 | if (SvOK(cache)) { |
5351 | STRLEN cache_len; | |
5352 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
5353 | STRLEN take = 0; |
5354 | ||
bb7a0f54 | 5355 | if (umaxlen) { |
941a98a0 NC |
5356 | /* Running in block mode and we have some cached data already. |
5357 | */ | |
bb7a0f54 | 5358 | if (cache_len >= umaxlen) { |
941a98a0 NC |
5359 | /* In fact, so much data we don't even need to call |
5360 | filter_read. */ | |
bb7a0f54 | 5361 | take = umaxlen; |
941a98a0 NC |
5362 | } |
5363 | } else { | |
10edeb5d JH |
5364 | const char *const first_nl = |
5365 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
5366 | if (first_nl) { |
5367 | take = first_nl + 1 - cache_p; | |
5368 | } | |
5369 | } | |
5370 | if (take) { | |
5371 | sv_catpvn(buf_sv, cache_p, take); | |
5372 | sv_chop(cache, cache_p + take); | |
486ec47a | 5373 | /* Definitely not EOF */ |
937b367d NC |
5374 | return 1; |
5375 | } | |
941a98a0 | 5376 | |
937b367d | 5377 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
5378 | if (umaxlen) { |
5379 | umaxlen -= cache_len; | |
941a98a0 | 5380 | } |
937b367d | 5381 | SvOK_off(cache); |
34113e50 | 5382 | read_from_cache = TRUE; |
937b367d NC |
5383 | } |
5384 | } | |
ec0b63d7 | 5385 | |
34113e50 NC |
5386 | /* Filter API says that the filter appends to the contents of the buffer. |
5387 | Usually the buffer is "", so the details don't matter. But if it's not, | |
5388 | then clearly what it contains is already filtered by this filter, so we | |
5389 | don't want to pass it in a second time. | |
5390 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
5391 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
5392 | ? sv_newmortal() : buf_sv; | |
5393 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 5394 | |
bbed91b5 | 5395 | if (filter_has_file) { |
67e70b33 | 5396 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
5397 | } |
5398 | ||
34113e50 | 5399 | if (filter_sub && status >= 0) { |
39644a26 | 5400 | dSP; |
bbed91b5 KF |
5401 | int count; |
5402 | ||
d343c3ef | 5403 | ENTER_with_name("call_filter_sub"); |
339c6c60 FC |
5404 | save_gp(PL_defgv, 0); |
5405 | GvINTRO_off(PL_defgv); | |
d34a6664 | 5406 | SAVEGENERICSV(GvSV(PL_defgv)); |
bbed91b5 KF |
5407 | SAVETMPS; |
5408 | EXTEND(SP, 2); | |
5409 | ||
414bf5ae | 5410 | DEFSV_set(upstream); |
d34a6664 | 5411 | SvREFCNT_inc_simple_void_NN(upstream); |
bbed91b5 | 5412 | PUSHMARK(SP); |
6e449a3a | 5413 | mPUSHi(0); |
bbed91b5 KF |
5414 | if (filter_state) { |
5415 | PUSHs(filter_state); | |
5416 | } | |
5417 | PUTBACK; | |
5418 | count = call_sv(filter_sub, G_SCALAR); | |
5419 | SPAGAIN; | |
5420 | ||
5421 | if (count > 0) { | |
5422 | SV *out = POPs; | |
5423 | if (SvOK(out)) { | |
941a98a0 | 5424 | status = SvIV(out); |
bbed91b5 KF |
5425 | } |
5426 | } | |
5427 | ||
5428 | PUTBACK; | |
5429 | FREETMPS; | |
d343c3ef | 5430 | LEAVE_with_name("call_filter_sub"); |
bbed91b5 KF |
5431 | } |
5432 | ||
941a98a0 NC |
5433 | if(SvOK(upstream)) { |
5434 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
5435 | if (umaxlen) { |
5436 | if (got_len > umaxlen) { | |
5437 | prune_from = got_p + umaxlen; | |
937b367d | 5438 | } |
941a98a0 | 5439 | } else { |
162177c1 | 5440 | char *const first_nl = (char *)memchr(got_p, '\n', got_len); |
941a98a0 NC |
5441 | if (first_nl && first_nl + 1 < got_p + got_len) { |
5442 | /* There's a second line here... */ | |
5443 | prune_from = first_nl + 1; | |
937b367d | 5444 | } |
937b367d NC |
5445 | } |
5446 | } | |
941a98a0 NC |
5447 | if (prune_from) { |
5448 | /* Oh. Too long. Stuff some in our cache. */ | |
5449 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 5450 | SV *const cache = datasv; |
941a98a0 | 5451 | |
4464f08e | 5452 | if (SvOK(cache)) { |
941a98a0 NC |
5453 | /* Cache should be empty. */ |
5454 | assert(!SvCUR(cache)); | |
5455 | } | |
5456 | ||
5457 | sv_setpvn(cache, prune_from, cached_len); | |
5458 | /* If you ask for block mode, you may well split UTF-8 characters. | |
5459 | "If it breaks, you get to keep both parts" | |
5460 | (Your code is broken if you don't put them back together again | |
5461 | before something notices.) */ | |
5462 | if (SvUTF8(upstream)) { | |
5463 | SvUTF8_on(cache); | |
5464 | } | |
5465 | SvCUR_set(upstream, got_len - cached_len); | |
162177c1 | 5466 | *prune_from = 0; |
941a98a0 NC |
5467 | /* Can't yet be EOF */ |
5468 | if (status == 0) | |
5469 | status = 1; | |
5470 | } | |
937b367d | 5471 | |
34113e50 NC |
5472 | /* If they are at EOF but buf_sv has something in it, then they may never |
5473 | have touched the SV upstream, so it may be undefined. If we naively | |
5474 | concatenate it then we get a warning about use of uninitialised value. | |
5475 | */ | |
5476 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
5477 | sv_catsv(buf_sv, upstream); |
5478 | } | |
5479 | ||
941a98a0 | 5480 | if (status <= 0) { |
bbed91b5 | 5481 | IoLINES(datasv) = 0; |
bbed91b5 KF |
5482 | if (filter_state) { |
5483 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5484 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5485 | } |
5486 | if (filter_sub) { | |
5487 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5488 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5489 | } |
0bd48802 | 5490 | filter_del(S_run_user_filter); |
bbed91b5 | 5491 | } |
34113e50 NC |
5492 | if (status == 0 && read_from_cache) { |
5493 | /* If we read some data from the cache (and by getting here it implies | |
5494 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5495 | report that to our caller. */ | |
5496 | return 1; | |
5497 | } | |
941a98a0 | 5498 | return status; |
bbed91b5 | 5499 | } |
84d4ea48 | 5500 | |
be4b629d CN |
5501 | /* perhaps someone can come up with a better name for |
5502 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5503 | static bool |
5f66b61c | 5504 | S_path_is_absolute(const char *name) |
be4b629d | 5505 | { |
7918f24d NC |
5506 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5507 | ||
be4b629d | 5508 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5509 | #ifdef WIN32 |
36f064bc CL |
5510 | || (*name == '.' && ((name[1] == '/' || |
5511 | (name[1] == '.' && name[2] == '/')) | |
5512 | || (name[1] == '\\' || | |
5513 | ( name[1] == '.' && name[2] == '\\'))) | |
5514 | ) | |
5515 | #else | |
be4b629d | 5516 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5517 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5518 | #endif |
0bd48802 | 5519 | ) |
be4b629d CN |
5520 | { |
5521 | return TRUE; | |
5522 | } | |
5523 | else | |
5524 | return FALSE; | |
5525 | } | |
241d1a3b NC |
5526 | |
5527 | /* | |
5528 | * Local variables: | |
5529 | * c-indentation-style: bsd | |
5530 | * c-basic-offset: 4 | |
5531 | * indent-tabs-mode: t | |
5532 | * End: | |
5533 | * | |
37442d52 RGS |
5534 | * ex: set ts=8 sts=4 sw=4 noet: |
5535 | */ |