Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a0d0e21e LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * Now far ahead the Road has gone, |
13 | * And I must follow, if I can, | |
14 | * Pursuing it with eager feet, | |
15 | * Until it joins some larger way | |
16 | * Where many paths and errands meet. | |
17 | * And whither then? I cannot say. | |
18 | * | |
19 | * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"] | |
a0d0e21e LW |
20 | */ |
21 | ||
166f8a29 DM |
22 | /* This file contains control-oriented pp ("push/pop") functions that |
23 | * execute the opcodes that make up a perl program. A typical pp function | |
24 | * expects to find its arguments on the stack, and usually pushes its | |
25 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
26 | * contains a pointer to the relevant pp_foo() function. | |
27 | * | |
28 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
29 | * alter the flow of control of the program. | |
30 | */ | |
31 | ||
32 | ||
a0d0e21e | 33 | #include "EXTERN.h" |
864dbfa3 | 34 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
35 | #include "perl.h" |
36 | ||
37 | #ifndef WORD_ALIGN | |
dea28490 | 38 | #define WORD_ALIGN sizeof(U32) |
a0d0e21e LW |
39 | #endif |
40 | ||
54310121 | 41 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 42 | |
94fcd414 NC |
43 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
44 | ||
a0d0e21e LW |
45 | PP(pp_wantarray) |
46 | { | |
97aff369 | 47 | dVAR; |
39644a26 | 48 | dSP; |
a0d0e21e LW |
49 | I32 cxix; |
50 | EXTEND(SP, 1); | |
51 | ||
52 | cxix = dopoptosub(cxstack_ix); | |
53 | if (cxix < 0) | |
54 | RETPUSHUNDEF; | |
55 | ||
54310121 | 56 | switch (cxstack[cxix].blk_gimme) { |
57 | case G_ARRAY: | |
a0d0e21e | 58 | RETPUSHYES; |
54310121 | 59 | case G_SCALAR: |
a0d0e21e | 60 | RETPUSHNO; |
54310121 | 61 | default: |
62 | RETPUSHUNDEF; | |
63 | } | |
a0d0e21e LW |
64 | } |
65 | ||
2cd61cdb IZ |
66 | PP(pp_regcreset) |
67 | { | |
97aff369 | 68 | dVAR; |
2cd61cdb IZ |
69 | /* XXXX Should store the old value to allow for tie/overload - and |
70 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 71 | PL_reginterp_cnt = 0; |
0b4182de | 72 | TAINT_NOT; |
2cd61cdb IZ |
73 | return NORMAL; |
74 | } | |
75 | ||
b3eb6a9b GS |
76 | PP(pp_regcomp) |
77 | { | |
97aff369 | 78 | dVAR; |
39644a26 | 79 | dSP; |
a0d0e21e | 80 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 81 | SV *tmpstr; |
84679df5 | 82 | REGEXP *re = NULL; |
bfed75c6 | 83 | |
4b5a0d1c | 84 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 85 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
86 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
87 | if (PL_op->op_flags & OPf_STACKED) { | |
88 | dMARK; | |
89 | SP = MARK; | |
90 | } | |
91 | else | |
92 | (void)POPs; | |
93 | RETURN; | |
94 | } | |
513629ba | 95 | #endif |
131b3ad0 DM |
96 | if (PL_op->op_flags & OPf_STACKED) { |
97 | /* multiple args; concatentate them */ | |
98 | dMARK; dORIGMARK; | |
99 | tmpstr = PAD_SV(ARGTARG); | |
76f68e9b | 100 | sv_setpvs(tmpstr, ""); |
131b3ad0 DM |
101 | while (++MARK <= SP) { |
102 | if (PL_amagic_generation) { | |
103 | SV *sv; | |
104 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(*MARK)) && | |
105 | (sv = amagic_call(tmpstr, *MARK, concat_amg, AMGf_assign))) | |
106 | { | |
107 | sv_setsv(tmpstr, sv); | |
108 | continue; | |
109 | } | |
110 | } | |
111 | sv_catsv(tmpstr, *MARK); | |
112 | } | |
113 | SvSETMAGIC(tmpstr); | |
114 | SP = ORIGMARK; | |
115 | } | |
116 | else | |
117 | tmpstr = POPs; | |
513629ba | 118 | |
b3eb6a9b | 119 | if (SvROK(tmpstr)) { |
d8f6592e | 120 | SV * const sv = SvRV(tmpstr); |
5c35adbb | 121 | if (SvTYPE(sv) == SVt_REGEXP) |
d2f13c59 | 122 | re = (REGEXP*) sv; |
c277df42 | 123 | } |
5c35adbb NC |
124 | if (re) { |
125 | re = reg_temp_copy(re); | |
aaa362c4 | 126 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 127 | PM_SETRE(pm, re); |
c277df42 IZ |
128 | } |
129 | else { | |
e62f0680 | 130 | STRLEN len; |
3ab4a224 | 131 | const char *t = SvOK(tmpstr) ? SvPV_const(tmpstr, len) : ""; |
c737faaf | 132 | re = PM_GETRE(pm); |
14a49a24 | 133 | assert (re != (REGEXP*) &PL_sv_undef); |
c277df42 | 134 | |
20408e3c | 135 | /* Check against the last compiled regexp. */ |
a11c8683 | 136 | if (!re || !RX_PRECOMP(re) || RX_PRELEN(re) != len || |
220fc49f | 137 | memNE(RX_PRECOMP(re), t, len)) |
85aff577 | 138 | { |
07bc277f | 139 | const regexp_engine *eng = re ? RX_ENGINE(re) : NULL; |
c737faaf | 140 | U32 pm_flags = pm->op_pmflags & PMf_COMPILETIME; |
d8f6592e AL |
141 | if (re) { |
142 | ReREFCNT_dec(re); | |
14a49a24 NC |
143 | #ifdef USE_ITHREADS |
144 | PM_SETRE(pm, (REGEXP*) &PL_sv_undef); | |
145 | #else | |
4608196e | 146 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
14a49a24 | 147 | #endif |
1e2e3d02 YO |
148 | } else if (PL_curcop->cop_hints_hash) { |
149 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
150 | "regcomp", 7, 0, 0); | |
151 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
152 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 153 | } |
664e119d | 154 | |
533c011a | 155 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 156 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 157 | |
b9ad30b4 NC |
158 | if (DO_UTF8(tmpstr)) { |
159 | assert (SvUTF8(tmpstr)); | |
160 | } else if (SvUTF8(tmpstr)) { | |
161 | /* Not doing UTF-8, despite what the SV says. Is this only if | |
162 | we're trapped in use 'bytes'? */ | |
163 | /* Make a copy of the octet sequence, but without the flag on, | |
164 | as the compiler now honours the SvUTF8 flag on tmpstr. */ | |
165 | STRLEN len; | |
166 | const char *const p = SvPV(tmpstr, len); | |
167 | tmpstr = newSVpvn_flags(p, len, SVs_TEMP); | |
168 | } | |
c737faaf | 169 | |
3ab4a224 AB |
170 | if (eng) |
171 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); | |
172 | else | |
173 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); | |
c737faaf | 174 | |
f86aaa29 | 175 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 176 | inside tie/overload accessors. */ |
c277df42 | 177 | } |
4633a7c4 | 178 | } |
c737faaf YO |
179 | |
180 | re = PM_GETRE(pm); | |
a0d0e21e | 181 | |
72311751 | 182 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
183 | if (PL_tainting) { |
184 | if (PL_tainted) | |
07bc277f | 185 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
72311751 | 186 | else |
07bc277f | 187 | RX_EXTFLAGS(re) &= ~RXf_TAINTED; |
72311751 GS |
188 | } |
189 | #endif | |
190 | ||
220fc49f | 191 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 192 | pm = PL_curpm; |
a0d0e21e | 193 | |
c737faaf YO |
194 | |
195 | #if !defined(USE_ITHREADS) | |
196 | /* can't change the optree at runtime either */ | |
197 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 198 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 199 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 200 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 201 | } |
c737faaf | 202 | #endif |
a0d0e21e LW |
203 | RETURN; |
204 | } | |
205 | ||
206 | PP(pp_substcont) | |
207 | { | |
97aff369 | 208 | dVAR; |
39644a26 | 209 | dSP; |
c09156bb | 210 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
211 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
212 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
213 | register char *s = cx->sb_s; |
214 | register char *m = cx->sb_m; | |
215 | char *orig = cx->sb_orig; | |
901017d6 | 216 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 217 | SV *nsv = NULL; |
988e6e7e AE |
218 | REGEXP *old = PM_GETRE(pm); |
219 | if(old != rx) { | |
bfed75c6 | 220 | if(old) |
988e6e7e | 221 | ReREFCNT_dec(old); |
d6106309 | 222 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
223 | } |
224 | ||
d9f97599 | 225 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 226 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 227 | |
a0d0e21e | 228 | if (cx->sb_iters++) { |
a3b680e6 | 229 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 230 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 231 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 232 | |
48c036b1 GS |
233 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
234 | cx->sb_rxtainted |= 2; | |
a0d0e21e | 235 | sv_catsv(dstr, POPs); |
a0d0e21e LW |
236 | |
237 | /* Are we done */ | |
c5bed6a7 | 238 | if (CxONCE(cx) || !CALLREGEXEC(rx, s, cx->sb_strend, orig, |
9661b544 | 239 | s == m, cx->sb_targ, NULL, |
22e551b9 | 240 | ((cx->sb_rflags & REXEC_COPY_STR) |
cf93c79d IZ |
241 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) |
242 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 243 | { |
823a54a3 | 244 | SV * const targ = cx->sb_targ; |
748a9306 | 245 | |
078c425b JH |
246 | assert(cx->sb_strend >= s); |
247 | if(cx->sb_strend > s) { | |
248 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
249 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
250 | else | |
251 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
252 | } | |
48c036b1 | 253 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 254 | |
f8c7b90f | 255 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
256 | if (SvIsCOW(targ)) { |
257 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
258 | } else | |
259 | #endif | |
260 | { | |
8bd4d4c5 | 261 | SvPV_free(targ); |
ed252734 | 262 | } |
f880fe2f | 263 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
264 | SvCUR_set(targ, SvCUR(dstr)); |
265 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
266 | if (DO_UTF8(dstr)) |
267 | SvUTF8_on(targ); | |
6136c704 | 268 | SvPV_set(dstr, NULL); |
48c036b1 GS |
269 | |
270 | TAINT_IF(cx->sb_rxtainted & 1); | |
6e449a3a | 271 | mPUSHi(saviters - 1); |
48c036b1 | 272 | |
ffc61ed2 | 273 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 274 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 275 | SvSETMAGIC(targ); |
9212bbba | 276 | SvTAINT(targ); |
5cd24f17 | 277 | |
4633a7c4 | 278 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
279 | POPSUBST(cx); |
280 | RETURNOP(pm->op_next); | |
281 | } | |
8e5e9ebe | 282 | cx->sb_iters = saviters; |
a0d0e21e | 283 | } |
07bc277f | 284 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
285 | m = s; |
286 | s = orig; | |
07bc277f | 287 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
288 | s = orig + (m - s); |
289 | cx->sb_strend = s + (cx->sb_strend - m); | |
290 | } | |
07bc277f | 291 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 292 | if (m > s) { |
bfed75c6 | 293 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
294 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
295 | else | |
296 | sv_catpvn(dstr, s, m-s); | |
297 | } | |
07bc277f | 298 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 299 | { /* Update the pos() information. */ |
44f8325f | 300 | SV * const sv = cx->sb_targ; |
084916e3 | 301 | MAGIC *mg; |
7a7f3e45 | 302 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 303 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 304 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 305 | if (SvIsCOW(sv)) |
d83f0a82 NC |
306 | sv_force_normal_flags(sv, 0); |
307 | #endif | |
308 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
309 | NULL, 0); | |
084916e3 | 310 | } |
ce474962 | 311 | mg->mg_len = m - orig; |
084916e3 | 312 | } |
988e6e7e | 313 | if (old != rx) |
d6106309 | 314 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
315 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
316 | rxres_save(&cx->sb_rxres, rx); | |
29f2e912 | 317 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
318 | } |
319 | ||
c90c0ff4 | 320 | void |
864dbfa3 | 321 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 322 | { |
323 | UV *p = (UV*)*rsp; | |
324 | U32 i; | |
7918f24d NC |
325 | |
326 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 327 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 328 | |
07bc277f | 329 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 330 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 331 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 332 | #else |
07bc277f | 333 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 334 | #endif |
c90c0ff4 | 335 | if (!p) |
a02a5408 | 336 | Newx(p, i, UV); |
c90c0ff4 | 337 | else |
338 | Renew(p, i, UV); | |
339 | *rsp = (void*)p; | |
340 | } | |
341 | ||
07bc277f | 342 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 343 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 344 | |
f8c7b90f | 345 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
346 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
347 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
348 | #endif |
349 | ||
07bc277f | 350 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 351 | |
07bc277f NC |
352 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
353 | *p++ = (UV)RX_SUBLEN(rx); | |
354 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
355 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
356 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 357 | } |
358 | } | |
359 | ||
9c105995 NC |
360 | static void |
361 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 362 | { |
363 | UV *p = (UV*)*rsp; | |
364 | U32 i; | |
7918f24d NC |
365 | |
366 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 367 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 368 | |
ed252734 | 369 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 370 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 371 | *p++ = 0; |
372 | ||
f8c7b90f | 373 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
374 | if (RX_SAVED_COPY(rx)) |
375 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
376 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
377 | *p++ = 0; |
378 | #endif | |
379 | ||
07bc277f | 380 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 381 | |
07bc277f NC |
382 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
383 | RX_SUBLEN(rx) = (I32)(*p++); | |
384 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
385 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
386 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 387 | } |
388 | } | |
389 | ||
9c105995 NC |
390 | static void |
391 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 392 | { |
44f8325f | 393 | UV * const p = (UV*)*rsp; |
7918f24d NC |
394 | |
395 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 396 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 397 | |
398 | if (p) { | |
94010e71 NC |
399 | #ifdef PERL_POISON |
400 | void *tmp = INT2PTR(char*,*p); | |
401 | Safefree(tmp); | |
402 | if (*p) | |
7e337ee0 | 403 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 404 | #else |
56431972 | 405 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 406 | #endif |
f8c7b90f | 407 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
408 | if (p[1]) { |
409 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
410 | } | |
411 | #endif | |
c90c0ff4 | 412 | Safefree(p); |
4608196e | 413 | *rsp = NULL; |
c90c0ff4 | 414 | } |
415 | } | |
416 | ||
a0d0e21e LW |
417 | PP(pp_formline) |
418 | { | |
97aff369 | 419 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 420 | register SV * const tmpForm = *++MARK; |
dea28490 | 421 | register U32 *fpc; |
a0d0e21e | 422 | register char *t; |
245d4a47 | 423 | const char *f; |
a0d0e21e | 424 | register I32 arg; |
c445ea15 AL |
425 | register SV *sv = NULL; |
426 | const char *item = NULL; | |
9c5ffd7c JH |
427 | I32 itemsize = 0; |
428 | I32 fieldsize = 0; | |
a0d0e21e | 429 | I32 lines = 0; |
c445ea15 AL |
430 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
431 | const char *chophere = NULL; | |
432 | char *linemark = NULL; | |
65202027 | 433 | NV value; |
9c5ffd7c | 434 | bool gotsome = FALSE; |
a0d0e21e | 435 | STRLEN len; |
823a54a3 | 436 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 437 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
438 | bool item_is_utf8 = FALSE; |
439 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 440 | SV * nsv = NULL; |
cbbf8932 | 441 | OP * parseres = NULL; |
bfed75c6 | 442 | const char *fmt; |
a0d0e21e | 443 | |
76e3520e | 444 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
445 | if (SvREADONLY(tmpForm)) { |
446 | SvREADONLY_off(tmpForm); | |
a1b95068 | 447 | parseres = doparseform(tmpForm); |
445b3f51 GS |
448 | SvREADONLY_on(tmpForm); |
449 | } | |
450 | else | |
a1b95068 WL |
451 | parseres = doparseform(tmpForm); |
452 | if (parseres) | |
453 | return parseres; | |
a0d0e21e | 454 | } |
3280af22 | 455 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
456 | if (DO_UTF8(PL_formtarget)) |
457 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 458 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 459 | t += len; |
245d4a47 | 460 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 461 | /* need to jump to the next word */ |
245d4a47 | 462 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
463 | |
464 | for (;;) { | |
465 | DEBUG_f( { | |
bfed75c6 | 466 | const char *name = "???"; |
a0d0e21e LW |
467 | arg = -1; |
468 | switch (*fpc) { | |
469 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
470 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
471 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
472 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
473 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
474 | ||
475 | case FF_CHECKNL: name = "CHECKNL"; break; | |
476 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
477 | case FF_SPACE: name = "SPACE"; break; | |
478 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
479 | case FF_ITEM: name = "ITEM"; break; | |
480 | case FF_CHOP: name = "CHOP"; break; | |
481 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
482 | case FF_NEWLINE: name = "NEWLINE"; break; | |
483 | case FF_MORE: name = "MORE"; break; | |
484 | case FF_LINEMARK: name = "LINEMARK"; break; | |
485 | case FF_END: name = "END"; break; | |
bfed75c6 | 486 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 487 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
488 | } |
489 | if (arg >= 0) | |
bf49b057 | 490 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 491 | else |
bf49b057 | 492 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 493 | } ); |
a0d0e21e LW |
494 | switch (*fpc++) { |
495 | case FF_LINEMARK: | |
496 | linemark = t; | |
a0d0e21e LW |
497 | lines++; |
498 | gotsome = FALSE; | |
499 | break; | |
500 | ||
501 | case FF_LITERAL: | |
502 | arg = *fpc++; | |
1bd51a4c | 503 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 504 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
505 | *t = '\0'; |
506 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
507 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 508 | f += arg; |
1bd51a4c IH |
509 | break; |
510 | } | |
511 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 512 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 513 | *t = '\0'; |
7bf79863 | 514 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
515 | t = SvEND(PL_formtarget); |
516 | targ_is_utf8 = TRUE; | |
517 | } | |
a0d0e21e LW |
518 | while (arg--) |
519 | *t++ = *f++; | |
520 | break; | |
521 | ||
522 | case FF_SKIP: | |
523 | f += *fpc++; | |
524 | break; | |
525 | ||
526 | case FF_FETCH: | |
527 | arg = *fpc++; | |
528 | f += arg; | |
529 | fieldsize = arg; | |
530 | ||
531 | if (MARK < SP) | |
532 | sv = *++MARK; | |
533 | else { | |
3280af22 | 534 | sv = &PL_sv_no; |
599cee73 | 535 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 536 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
537 | } |
538 | break; | |
539 | ||
540 | case FF_CHECKNL: | |
5a34cab7 NC |
541 | { |
542 | const char *send; | |
543 | const char *s = item = SvPV_const(sv, len); | |
544 | itemsize = len; | |
545 | if (DO_UTF8(sv)) { | |
546 | itemsize = sv_len_utf8(sv); | |
547 | if (itemsize != (I32)len) { | |
548 | I32 itembytes; | |
549 | if (itemsize > fieldsize) { | |
550 | itemsize = fieldsize; | |
551 | itembytes = itemsize; | |
552 | sv_pos_u2b(sv, &itembytes, 0); | |
553 | } | |
554 | else | |
555 | itembytes = len; | |
556 | send = chophere = s + itembytes; | |
557 | while (s < send) { | |
558 | if (*s & ~31) | |
559 | gotsome = TRUE; | |
560 | else if (*s == '\n') | |
561 | break; | |
562 | s++; | |
563 | } | |
564 | item_is_utf8 = TRUE; | |
565 | itemsize = s - item; | |
566 | sv_pos_b2u(sv, &itemsize); | |
567 | break; | |
a0ed51b3 | 568 | } |
a0ed51b3 | 569 | } |
5a34cab7 NC |
570 | item_is_utf8 = FALSE; |
571 | if (itemsize > fieldsize) | |
572 | itemsize = fieldsize; | |
573 | send = chophere = s + itemsize; | |
574 | while (s < send) { | |
575 | if (*s & ~31) | |
576 | gotsome = TRUE; | |
577 | else if (*s == '\n') | |
578 | break; | |
579 | s++; | |
580 | } | |
581 | itemsize = s - item; | |
582 | break; | |
a0ed51b3 | 583 | } |
a0d0e21e LW |
584 | |
585 | case FF_CHECKCHOP: | |
5a34cab7 NC |
586 | { |
587 | const char *s = item = SvPV_const(sv, len); | |
588 | itemsize = len; | |
589 | if (DO_UTF8(sv)) { | |
590 | itemsize = sv_len_utf8(sv); | |
591 | if (itemsize != (I32)len) { | |
592 | I32 itembytes; | |
593 | if (itemsize <= fieldsize) { | |
594 | const char *send = chophere = s + itemsize; | |
595 | while (s < send) { | |
596 | if (*s == '\r') { | |
597 | itemsize = s - item; | |
a0ed51b3 | 598 | chophere = s; |
a0ed51b3 | 599 | break; |
5a34cab7 NC |
600 | } |
601 | if (*s++ & ~31) | |
a0ed51b3 | 602 | gotsome = TRUE; |
a0ed51b3 | 603 | } |
a0ed51b3 | 604 | } |
5a34cab7 NC |
605 | else { |
606 | const char *send; | |
607 | itemsize = fieldsize; | |
608 | itembytes = itemsize; | |
609 | sv_pos_u2b(sv, &itembytes, 0); | |
610 | send = chophere = s + itembytes; | |
611 | while (s < send || (s == send && isSPACE(*s))) { | |
612 | if (isSPACE(*s)) { | |
613 | if (chopspace) | |
614 | chophere = s; | |
615 | if (*s == '\r') | |
616 | break; | |
617 | } | |
618 | else { | |
619 | if (*s & ~31) | |
620 | gotsome = TRUE; | |
621 | if (strchr(PL_chopset, *s)) | |
622 | chophere = s + 1; | |
623 | } | |
624 | s++; | |
625 | } | |
626 | itemsize = chophere - item; | |
627 | sv_pos_b2u(sv, &itemsize); | |
628 | } | |
629 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
630 | break; |
631 | } | |
a0d0e21e | 632 | } |
5a34cab7 NC |
633 | item_is_utf8 = FALSE; |
634 | if (itemsize <= fieldsize) { | |
635 | const char *const send = chophere = s + itemsize; | |
636 | while (s < send) { | |
637 | if (*s == '\r') { | |
638 | itemsize = s - item; | |
a0d0e21e | 639 | chophere = s; |
a0d0e21e | 640 | break; |
5a34cab7 NC |
641 | } |
642 | if (*s++ & ~31) | |
a0d0e21e | 643 | gotsome = TRUE; |
a0d0e21e | 644 | } |
a0d0e21e | 645 | } |
5a34cab7 NC |
646 | else { |
647 | const char *send; | |
648 | itemsize = fieldsize; | |
649 | send = chophere = s + itemsize; | |
650 | while (s < send || (s == send && isSPACE(*s))) { | |
651 | if (isSPACE(*s)) { | |
652 | if (chopspace) | |
653 | chophere = s; | |
654 | if (*s == '\r') | |
655 | break; | |
656 | } | |
657 | else { | |
658 | if (*s & ~31) | |
659 | gotsome = TRUE; | |
660 | if (strchr(PL_chopset, *s)) | |
661 | chophere = s + 1; | |
662 | } | |
663 | s++; | |
664 | } | |
665 | itemsize = chophere - item; | |
666 | } | |
667 | break; | |
a0d0e21e | 668 | } |
a0d0e21e LW |
669 | |
670 | case FF_SPACE: | |
671 | arg = fieldsize - itemsize; | |
672 | if (arg) { | |
673 | fieldsize -= arg; | |
674 | while (arg-- > 0) | |
675 | *t++ = ' '; | |
676 | } | |
677 | break; | |
678 | ||
679 | case FF_HALFSPACE: | |
680 | arg = fieldsize - itemsize; | |
681 | if (arg) { | |
682 | arg /= 2; | |
683 | fieldsize -= arg; | |
684 | while (arg-- > 0) | |
685 | *t++ = ' '; | |
686 | } | |
687 | break; | |
688 | ||
689 | case FF_ITEM: | |
5a34cab7 NC |
690 | { |
691 | const char *s = item; | |
692 | arg = itemsize; | |
693 | if (item_is_utf8) { | |
694 | if (!targ_is_utf8) { | |
695 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
696 | *t = '\0'; | |
7bf79863 KW |
697 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
698 | fudge + 1); | |
5a34cab7 NC |
699 | t = SvEND(PL_formtarget); |
700 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 701 | } |
5a34cab7 NC |
702 | while (arg--) { |
703 | if (UTF8_IS_CONTINUED(*s)) { | |
704 | STRLEN skip = UTF8SKIP(s); | |
705 | switch (skip) { | |
706 | default: | |
707 | Move(s,t,skip,char); | |
708 | s += skip; | |
709 | t += skip; | |
710 | break; | |
711 | case 7: *t++ = *s++; | |
712 | case 6: *t++ = *s++; | |
713 | case 5: *t++ = *s++; | |
714 | case 4: *t++ = *s++; | |
715 | case 3: *t++ = *s++; | |
716 | case 2: *t++ = *s++; | |
717 | case 1: *t++ = *s++; | |
718 | } | |
719 | } | |
720 | else { | |
721 | if ( !((*t++ = *s++) & ~31) ) | |
722 | t[-1] = ' '; | |
723 | } | |
a0ed51b3 | 724 | } |
5a34cab7 | 725 | break; |
a0ed51b3 | 726 | } |
5a34cab7 NC |
727 | if (targ_is_utf8 && !item_is_utf8) { |
728 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
729 | *t = '\0'; | |
730 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
731 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 732 | #ifdef EBCDIC |
901017d6 | 733 | const int ch = *t; |
5a34cab7 | 734 | if (iscntrl(ch)) |
78da4d13 | 735 | #else |
5a34cab7 | 736 | if (!(*t & ~31)) |
78da4d13 | 737 | #endif |
5a34cab7 NC |
738 | *t = ' '; |
739 | } | |
740 | break; | |
78da4d13 | 741 | } |
5a34cab7 | 742 | while (arg--) { |
9d116dd7 | 743 | #ifdef EBCDIC |
901017d6 | 744 | const int ch = *t++ = *s++; |
5a34cab7 | 745 | if (iscntrl(ch)) |
a0d0e21e | 746 | #else |
5a34cab7 | 747 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 748 | #endif |
5a34cab7 NC |
749 | t[-1] = ' '; |
750 | } | |
751 | break; | |
a0d0e21e | 752 | } |
a0d0e21e LW |
753 | |
754 | case FF_CHOP: | |
5a34cab7 NC |
755 | { |
756 | const char *s = chophere; | |
757 | if (chopspace) { | |
af68e756 | 758 | while (isSPACE(*s)) |
5a34cab7 NC |
759 | s++; |
760 | } | |
761 | sv_chop(sv,s); | |
762 | SvSETMAGIC(sv); | |
763 | break; | |
a0d0e21e | 764 | } |
a0d0e21e | 765 | |
a1b95068 WL |
766 | case FF_LINESNGL: |
767 | chopspace = 0; | |
a0d0e21e | 768 | case FF_LINEGLOB: |
5a34cab7 | 769 | { |
e32383e2 | 770 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 771 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 772 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 773 | itemsize = len; |
5a34cab7 | 774 | if (itemsize) { |
e8e72d41 | 775 | STRLEN to_copy = itemsize; |
5a34cab7 | 776 | const char *const send = s + len; |
35c6393c | 777 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
778 | U8 *tmp = NULL; |
779 | ||
5a34cab7 NC |
780 | gotsome = TRUE; |
781 | chophere = s + itemsize; | |
782 | while (s < send) { | |
783 | if (*s++ == '\n') { | |
784 | if (oneline) { | |
e8e72d41 | 785 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
786 | chophere = s; |
787 | break; | |
788 | } else { | |
789 | if (s == send) { | |
790 | itemsize--; | |
e8e72d41 | 791 | to_copy--; |
5a34cab7 NC |
792 | } else |
793 | lines++; | |
794 | } | |
1bd51a4c | 795 | } |
a0d0e21e | 796 | } |
e8e72d41 | 797 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 798 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
799 | SvCUR_set(PL_formtarget, |
800 | t - SvPVX_const(PL_formtarget)); | |
801 | } else { | |
802 | if (item_is_utf8 && !targ_is_utf8) { | |
803 | /* Upgrade targ to UTF8, and then we reduce it to | |
804 | a problem we have a simple solution for. */ | |
805 | SvCUR_set(PL_formtarget, | |
806 | t - SvPVX_const(PL_formtarget)); | |
807 | targ_is_utf8 = TRUE; | |
808 | /* Don't need get magic. */ | |
7bf79863 | 809 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
810 | } else { |
811 | SvCUR_set(PL_formtarget, | |
812 | t - SvPVX_const(PL_formtarget)); | |
813 | } | |
e8e72d41 NC |
814 | |
815 | /* Easy. They agree. */ | |
816 | assert (item_is_utf8 == targ_is_utf8); | |
817 | } | |
818 | SvGROW(PL_formtarget, | |
819 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 820 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
821 | |
822 | Copy(source, t, to_copy, char); | |
823 | t += to_copy; | |
824 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 825 | if (item_is_utf8) { |
e8e72d41 NC |
826 | if (SvGMAGICAL(sv)) { |
827 | /* Mustn't call sv_pos_b2u() as it does a second | |
828 | mg_get(). Is this a bug? Do we need a _flags() | |
829 | variant? */ | |
830 | itemsize = utf8_length(source, source + itemsize); | |
831 | } else { | |
832 | sv_pos_b2u(sv, &itemsize); | |
833 | } | |
834 | assert(!tmp); | |
835 | } else if (tmp) { | |
836 | Safefree(tmp); | |
f3f2f1a3 | 837 | } |
a0d0e21e | 838 | } |
5a34cab7 | 839 | break; |
a0d0e21e | 840 | } |
a0d0e21e | 841 | |
a1b95068 WL |
842 | case FF_0DECIMAL: |
843 | arg = *fpc++; | |
844 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
845 | fmt = (const char *) |
846 | ((arg & 256) ? | |
847 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 848 | #else |
10edeb5d JH |
849 | fmt = (const char *) |
850 | ((arg & 256) ? | |
851 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
852 | #endif |
853 | goto ff_dec; | |
a0d0e21e | 854 | case FF_DECIMAL: |
a0d0e21e | 855 | arg = *fpc++; |
65202027 | 856 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
857 | fmt = (const char *) |
858 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 859 | #else |
10edeb5d JH |
860 | fmt = (const char *) |
861 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 862 | #endif |
a1b95068 | 863 | ff_dec: |
784707d5 JP |
864 | /* If the field is marked with ^ and the value is undefined, |
865 | blank it out. */ | |
784707d5 JP |
866 | if ((arg & 512) && !SvOK(sv)) { |
867 | arg = fieldsize; | |
868 | while (arg--) | |
869 | *t++ = ' '; | |
870 | break; | |
871 | } | |
872 | gotsome = TRUE; | |
873 | value = SvNV(sv); | |
a1b95068 | 874 | /* overflow evidence */ |
bfed75c6 | 875 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
876 | arg = fieldsize; |
877 | while (arg--) | |
878 | *t++ = '#'; | |
879 | break; | |
880 | } | |
784707d5 JP |
881 | /* Formats aren't yet marked for locales, so assume "yes". */ |
882 | { | |
883 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 884 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
885 | RESTORE_NUMERIC_STANDARD(); |
886 | } | |
887 | t += fieldsize; | |
888 | break; | |
a1b95068 | 889 | |
a0d0e21e LW |
890 | case FF_NEWLINE: |
891 | f++; | |
892 | while (t-- > linemark && *t == ' ') ; | |
893 | t++; | |
894 | *t++ = '\n'; | |
895 | break; | |
896 | ||
897 | case FF_BLANK: | |
898 | arg = *fpc++; | |
899 | if (gotsome) { | |
900 | if (arg) { /* repeat until fields exhausted? */ | |
901 | *t = '\0'; | |
b15aece3 | 902 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 903 | lines += FmLINES(PL_formtarget); |
a0d0e21e LW |
904 | if (lines == 200) { |
905 | arg = t - linemark; | |
906 | if (strnEQ(linemark, linemark - arg, arg)) | |
cea2e8a9 | 907 | DIE(aTHX_ "Runaway format"); |
a0d0e21e | 908 | } |
1bd51a4c IH |
909 | if (targ_is_utf8) |
910 | SvUTF8_on(PL_formtarget); | |
3280af22 | 911 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
912 | SP = ORIGMARK; |
913 | RETURNOP(cLISTOP->op_first); | |
914 | } | |
915 | } | |
916 | else { | |
917 | t = linemark; | |
918 | lines--; | |
919 | } | |
920 | break; | |
921 | ||
922 | case FF_MORE: | |
5a34cab7 NC |
923 | { |
924 | const char *s = chophere; | |
925 | const char *send = item + len; | |
926 | if (chopspace) { | |
af68e756 | 927 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 928 | s++; |
a0d0e21e | 929 | } |
5a34cab7 NC |
930 | if (s < send) { |
931 | char *s1; | |
932 | arg = fieldsize - itemsize; | |
933 | if (arg) { | |
934 | fieldsize -= arg; | |
935 | while (arg-- > 0) | |
936 | *t++ = ' '; | |
937 | } | |
938 | s1 = t - 3; | |
939 | if (strnEQ(s1," ",3)) { | |
940 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
941 | s1--; | |
942 | } | |
943 | *s1++ = '.'; | |
944 | *s1++ = '.'; | |
945 | *s1++ = '.'; | |
a0d0e21e | 946 | } |
5a34cab7 | 947 | break; |
a0d0e21e | 948 | } |
a0d0e21e LW |
949 | case FF_END: |
950 | *t = '\0'; | |
b15aece3 | 951 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
952 | if (targ_is_utf8) |
953 | SvUTF8_on(PL_formtarget); | |
3280af22 | 954 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
955 | SP = ORIGMARK; |
956 | RETPUSHYES; | |
957 | } | |
958 | } | |
959 | } | |
960 | ||
961 | PP(pp_grepstart) | |
962 | { | |
27da23d5 | 963 | dVAR; dSP; |
a0d0e21e LW |
964 | SV *src; |
965 | ||
3280af22 | 966 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 967 | (void)POPMARK; |
54310121 | 968 | if (GIMME_V == G_SCALAR) |
6e449a3a | 969 | mXPUSHi(0); |
533c011a | 970 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 971 | } |
3280af22 | 972 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
973 | pp_pushmark(); /* push dst */ |
974 | pp_pushmark(); /* push src */ | |
a0d0e21e LW |
975 | ENTER; /* enter outer scope */ |
976 | ||
977 | SAVETMPS; | |
59f00321 RGS |
978 | if (PL_op->op_private & OPpGREP_LEX) |
979 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
980 | else | |
981 | SAVE_DEFSV; | |
a0d0e21e | 982 | ENTER; /* enter inner scope */ |
7766f137 | 983 | SAVEVPTR(PL_curpm); |
a0d0e21e | 984 | |
3280af22 | 985 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 986 | SvTEMP_off(src); |
59f00321 RGS |
987 | if (PL_op->op_private & OPpGREP_LEX) |
988 | PAD_SVl(PL_op->op_targ) = src; | |
989 | else | |
414bf5ae | 990 | DEFSV_set(src); |
a0d0e21e LW |
991 | |
992 | PUTBACK; | |
533c011a | 993 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 994 | pp_pushmark(); /* push top */ |
533c011a | 995 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
996 | } |
997 | ||
a0d0e21e LW |
998 | PP(pp_mapwhile) |
999 | { | |
27da23d5 | 1000 | dVAR; dSP; |
f54cb97a | 1001 | const I32 gimme = GIMME_V; |
544f3153 | 1002 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1003 | I32 count; |
1004 | I32 shift; | |
1005 | SV** src; | |
ac27b0f5 | 1006 | SV** dst; |
a0d0e21e | 1007 | |
544f3153 | 1008 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1009 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1010 | |
1011 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1012 | if (items && gimme != G_VOID) { |
544f3153 GS |
1013 | /* might need to make room back there first */ |
1014 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1015 | /* XXX this implementation is very pessimal because the stack | |
1016 | * is repeatedly extended for every set of items. Is possible | |
1017 | * to do this without any stack extension or copying at all | |
1018 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1019 | * (like foreach does). --gsar */ |
544f3153 GS |
1020 | |
1021 | /* everything in the stack after the destination list moves | |
1022 | * towards the end the stack by the amount of room needed */ | |
1023 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1024 | ||
1025 | /* items to shift up (accounting for the moved source pointer) */ | |
1026 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1027 | |
1028 | /* This optimization is by Ben Tilly and it does | |
1029 | * things differently from what Sarathy (gsar) | |
1030 | * is describing. The downside of this optimization is | |
1031 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1032 | * to the Perl stack, but on the other hand this | |
1033 | * shouldn't be a problem. If Sarathy's idea gets | |
1034 | * implemented, this optimization should become | |
1035 | * irrelevant. --jhi */ | |
1036 | if (shift < count) | |
1037 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1038 | |
924508f0 GS |
1039 | EXTEND(SP,shift); |
1040 | src = SP; | |
1041 | dst = (SP += shift); | |
3280af22 NIS |
1042 | PL_markstack_ptr[-1] += shift; |
1043 | *PL_markstack_ptr += shift; | |
544f3153 | 1044 | while (count--) |
a0d0e21e LW |
1045 | *dst-- = *src--; |
1046 | } | |
544f3153 | 1047 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1048 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1049 | if (gimme == G_ARRAY) { |
1050 | while (items-- > 0) | |
1051 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1052 | } | |
bfed75c6 | 1053 | else { |
22023b26 TP |
1054 | /* scalar context: we don't care about which values map returns |
1055 | * (we use undef here). And so we certainly don't want to do mortal | |
1056 | * copies of meaningless values. */ | |
1057 | while (items-- > 0) { | |
b988aa42 | 1058 | (void)POPs; |
22023b26 TP |
1059 | *dst-- = &PL_sv_undef; |
1060 | } | |
1061 | } | |
a0d0e21e LW |
1062 | } |
1063 | LEAVE; /* exit inner scope */ | |
1064 | ||
1065 | /* All done yet? */ | |
3280af22 | 1066 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1067 | |
1068 | (void)POPMARK; /* pop top */ | |
1069 | LEAVE; /* exit outer scope */ | |
1070 | (void)POPMARK; /* pop src */ | |
3280af22 | 1071 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1072 | (void)POPMARK; /* pop dst */ |
3280af22 | 1073 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1074 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1075 | if (PL_op->op_private & OPpGREP_LEX) { |
1076 | SV* sv = sv_newmortal(); | |
1077 | sv_setiv(sv, items); | |
1078 | PUSHs(sv); | |
1079 | } | |
1080 | else { | |
1081 | dTARGET; | |
1082 | XPUSHi(items); | |
1083 | } | |
a0d0e21e | 1084 | } |
54310121 | 1085 | else if (gimme == G_ARRAY) |
1086 | SP += items; | |
a0d0e21e LW |
1087 | RETURN; |
1088 | } | |
1089 | else { | |
1090 | SV *src; | |
1091 | ||
1092 | ENTER; /* enter inner scope */ | |
7766f137 | 1093 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1094 | |
544f3153 | 1095 | /* set $_ to the new source item */ |
3280af22 | 1096 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1097 | SvTEMP_off(src); |
59f00321 RGS |
1098 | if (PL_op->op_private & OPpGREP_LEX) |
1099 | PAD_SVl(PL_op->op_targ) = src; | |
1100 | else | |
414bf5ae | 1101 | DEFSV_set(src); |
a0d0e21e LW |
1102 | |
1103 | RETURNOP(cLOGOP->op_other); | |
1104 | } | |
1105 | } | |
1106 | ||
a0d0e21e LW |
1107 | /* Range stuff. */ |
1108 | ||
1109 | PP(pp_range) | |
1110 | { | |
97aff369 | 1111 | dVAR; |
a0d0e21e | 1112 | if (GIMME == G_ARRAY) |
1a67a97c | 1113 | return NORMAL; |
538573f7 | 1114 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1115 | return cLOGOP->op_other; |
538573f7 | 1116 | else |
1a67a97c | 1117 | return NORMAL; |
a0d0e21e LW |
1118 | } |
1119 | ||
1120 | PP(pp_flip) | |
1121 | { | |
97aff369 | 1122 | dVAR; |
39644a26 | 1123 | dSP; |
a0d0e21e LW |
1124 | |
1125 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1126 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1127 | } |
1128 | else { | |
1129 | dTOPss; | |
44f8325f | 1130 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1131 | int flip = 0; |
790090df | 1132 | |
bfed75c6 | 1133 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1134 | if (GvIO(PL_last_in_gv)) { |
1135 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1136 | } | |
1137 | else { | |
fafc274c | 1138 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1139 | if (gv && GvSV(gv)) |
1140 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1141 | } |
bfed75c6 AL |
1142 | } else { |
1143 | flip = SvTRUE(sv); | |
1144 | } | |
1145 | if (flip) { | |
a0d0e21e | 1146 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1147 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1148 | sv_setiv(targ, 1); |
3e3baf6d | 1149 | SETs(targ); |
a0d0e21e LW |
1150 | RETURN; |
1151 | } | |
1152 | else { | |
1153 | sv_setiv(targ, 0); | |
924508f0 | 1154 | SP--; |
1a67a97c | 1155 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1156 | } |
1157 | } | |
76f68e9b | 1158 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1159 | SETs(targ); |
1160 | RETURN; | |
1161 | } | |
1162 | } | |
1163 | ||
8e9bbdb9 RGS |
1164 | /* This code tries to decide if "$left .. $right" should use the |
1165 | magical string increment, or if the range is numeric (we make | |
1166 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1167 | ||
1168 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1169 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1170 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1171 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1172 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1173 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1174 | |
a0d0e21e LW |
1175 | PP(pp_flop) |
1176 | { | |
97aff369 | 1177 | dVAR; dSP; |
a0d0e21e LW |
1178 | |
1179 | if (GIMME == G_ARRAY) { | |
1180 | dPOPPOPssrl; | |
86cb7173 | 1181 | |
5b295bef RD |
1182 | SvGETMAGIC(left); |
1183 | SvGETMAGIC(right); | |
a0d0e21e | 1184 | |
8e9bbdb9 | 1185 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1186 | register IV i, j; |
1187 | IV max; | |
4fe3f0fa MHM |
1188 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1189 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1190 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1191 | i = SvIV(left); |
1192 | max = SvIV(right); | |
bbce6d69 | 1193 | if (max >= i) { |
c1ab3db2 AK |
1194 | j = max - i + 1; |
1195 | EXTEND_MORTAL(j); | |
1196 | EXTEND(SP, j); | |
bbce6d69 | 1197 | } |
c1ab3db2 AK |
1198 | else |
1199 | j = 0; | |
1200 | while (j--) { | |
901017d6 | 1201 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1202 | PUSHs(sv); |
1203 | } | |
1204 | } | |
1205 | else { | |
44f8325f | 1206 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1207 | STRLEN len; |
823a54a3 | 1208 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1209 | |
901017d6 | 1210 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1211 | SvPV_force_nolen(sv); |
89ea2908 | 1212 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1213 | XPUSHs(sv); |
b15aece3 | 1214 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1215 | break; |
a0d0e21e LW |
1216 | sv = sv_2mortal(newSVsv(sv)); |
1217 | sv_inc(sv); | |
1218 | } | |
a0d0e21e LW |
1219 | } |
1220 | } | |
1221 | else { | |
1222 | dTOPss; | |
901017d6 | 1223 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1224 | int flop = 0; |
a0d0e21e | 1225 | sv_inc(targ); |
4e3399f9 YST |
1226 | |
1227 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1228 | if (GvIO(PL_last_in_gv)) { | |
1229 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1230 | } | |
1231 | else { | |
fafc274c | 1232 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1233 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1234 | } | |
1235 | } | |
1236 | else { | |
1237 | flop = SvTRUE(sv); | |
1238 | } | |
1239 | ||
1240 | if (flop) { | |
a0d0e21e | 1241 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1242 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1243 | } |
1244 | SETs(targ); | |
1245 | } | |
1246 | ||
1247 | RETURN; | |
1248 | } | |
1249 | ||
1250 | /* Control. */ | |
1251 | ||
27da23d5 | 1252 | static const char * const context_name[] = { |
515afda2 | 1253 | "pseudo-block", |
76753e7f NC |
1254 | "when", |
1255 | NULL, /* CXt_BLOCK never actually needs "block" */ | |
1256 | "given", | |
1257 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ | |
1258 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1259 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1260 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1261 | "subroutine", |
76753e7f | 1262 | "format", |
515afda2 | 1263 | "eval", |
515afda2 | 1264 | "substitution", |
515afda2 NC |
1265 | }; |
1266 | ||
76e3520e | 1267 | STATIC I32 |
06b5626a | 1268 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1269 | { |
97aff369 | 1270 | dVAR; |
a0d0e21e | 1271 | register I32 i; |
a0d0e21e | 1272 | |
7918f24d NC |
1273 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1274 | ||
a0d0e21e | 1275 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1276 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1277 | switch (CxTYPE(cx)) { |
a0d0e21e | 1278 | case CXt_SUBST: |
a0d0e21e | 1279 | case CXt_SUB: |
7766f137 | 1280 | case CXt_FORMAT: |
a0d0e21e | 1281 | case CXt_EVAL: |
0a753a76 | 1282 | case CXt_NULL: |
0d863452 RH |
1283 | case CXt_GIVEN: |
1284 | case CXt_WHEN: | |
e476b1b5 | 1285 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1286 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1287 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1288 | if (CxTYPE(cx) == CXt_NULL) | |
1289 | return -1; | |
1290 | break; | |
c6fdafd0 | 1291 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1292 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1293 | case CXt_LOOP_FOR: |
1294 | case CXt_LOOP_PLAIN: | |
a61a7064 | 1295 | if ( !CxLABEL(cx) || strNE(label, CxLABEL(cx)) ) { |
cea2e8a9 | 1296 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
a61a7064 | 1297 | (long)i, CxLABEL(cx))); |
a0d0e21e LW |
1298 | continue; |
1299 | } | |
cea2e8a9 | 1300 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e LW |
1301 | return i; |
1302 | } | |
1303 | } | |
1304 | return i; | |
1305 | } | |
1306 | ||
0d863452 RH |
1307 | |
1308 | ||
e50aee73 | 1309 | I32 |
864dbfa3 | 1310 | Perl_dowantarray(pTHX) |
e50aee73 | 1311 | { |
97aff369 | 1312 | dVAR; |
f54cb97a | 1313 | const I32 gimme = block_gimme(); |
54310121 | 1314 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1315 | } | |
1316 | ||
1317 | I32 | |
864dbfa3 | 1318 | Perl_block_gimme(pTHX) |
54310121 | 1319 | { |
97aff369 | 1320 | dVAR; |
06b5626a | 1321 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1322 | if (cxix < 0) |
46fc3d4c | 1323 | return G_VOID; |
e50aee73 | 1324 | |
54310121 | 1325 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1326 | case G_VOID: |
1327 | return G_VOID; | |
54310121 | 1328 | case G_SCALAR: |
e50aee73 | 1329 | return G_SCALAR; |
54310121 | 1330 | case G_ARRAY: |
1331 | return G_ARRAY; | |
1332 | default: | |
cea2e8a9 | 1333 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1334 | /* NOTREACHED */ |
1335 | return 0; | |
54310121 | 1336 | } |
e50aee73 AD |
1337 | } |
1338 | ||
78f9721b SM |
1339 | I32 |
1340 | Perl_is_lvalue_sub(pTHX) | |
1341 | { | |
97aff369 | 1342 | dVAR; |
06b5626a | 1343 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1344 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1345 | ||
bafb2adc NC |
1346 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1347 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1348 | else |
1349 | return 0; | |
1350 | } | |
1351 | ||
76e3520e | 1352 | STATIC I32 |
901017d6 | 1353 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1354 | { |
97aff369 | 1355 | dVAR; |
a0d0e21e | 1356 | I32 i; |
7918f24d NC |
1357 | |
1358 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1359 | ||
a0d0e21e | 1360 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1361 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1362 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1363 | default: |
1364 | continue; | |
1365 | case CXt_EVAL: | |
1366 | case CXt_SUB: | |
7766f137 | 1367 | case CXt_FORMAT: |
cea2e8a9 | 1368 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1369 | return i; |
1370 | } | |
1371 | } | |
1372 | return i; | |
1373 | } | |
1374 | ||
76e3520e | 1375 | STATIC I32 |
cea2e8a9 | 1376 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1377 | { |
97aff369 | 1378 | dVAR; |
a0d0e21e | 1379 | I32 i; |
a0d0e21e | 1380 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1381 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1382 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1383 | default: |
1384 | continue; | |
1385 | case CXt_EVAL: | |
cea2e8a9 | 1386 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1387 | return i; |
1388 | } | |
1389 | } | |
1390 | return i; | |
1391 | } | |
1392 | ||
76e3520e | 1393 | STATIC I32 |
cea2e8a9 | 1394 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1395 | { |
97aff369 | 1396 | dVAR; |
a0d0e21e | 1397 | I32 i; |
a0d0e21e | 1398 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1399 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1400 | switch (CxTYPE(cx)) { |
a0d0e21e | 1401 | case CXt_SUBST: |
a0d0e21e | 1402 | case CXt_SUB: |
7766f137 | 1403 | case CXt_FORMAT: |
a0d0e21e | 1404 | case CXt_EVAL: |
0a753a76 | 1405 | case CXt_NULL: |
e476b1b5 | 1406 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1407 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1408 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1409 | if ((CxTYPE(cx)) == CXt_NULL) | |
1410 | return -1; | |
1411 | break; | |
c6fdafd0 | 1412 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1413 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1414 | case CXt_LOOP_FOR: |
1415 | case CXt_LOOP_PLAIN: | |
cea2e8a9 | 1416 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1417 | return i; |
1418 | } | |
1419 | } | |
1420 | return i; | |
1421 | } | |
1422 | ||
0d863452 RH |
1423 | STATIC I32 |
1424 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1425 | { | |
97aff369 | 1426 | dVAR; |
0d863452 RH |
1427 | I32 i; |
1428 | for (i = startingblock; i >= 0; i--) { | |
1429 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1430 | switch (CxTYPE(cx)) { | |
1431 | default: | |
1432 | continue; | |
1433 | case CXt_GIVEN: | |
1434 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1435 | return i; | |
3b719c58 NC |
1436 | case CXt_LOOP_PLAIN: |
1437 | assert(!CxFOREACHDEF(cx)); | |
1438 | break; | |
c6fdafd0 | 1439 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1440 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1441 | case CXt_LOOP_FOR: |
0d863452 RH |
1442 | if (CxFOREACHDEF(cx)) { |
1443 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1444 | return i; | |
1445 | } | |
1446 | } | |
1447 | } | |
1448 | return i; | |
1449 | } | |
1450 | ||
1451 | STATIC I32 | |
1452 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1453 | { | |
97aff369 | 1454 | dVAR; |
0d863452 RH |
1455 | I32 i; |
1456 | for (i = startingblock; i >= 0; i--) { | |
1457 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1458 | switch (CxTYPE(cx)) { | |
1459 | default: | |
1460 | continue; | |
1461 | case CXt_WHEN: | |
1462 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1463 | return i; | |
1464 | } | |
1465 | } | |
1466 | return i; | |
1467 | } | |
1468 | ||
a0d0e21e | 1469 | void |
864dbfa3 | 1470 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1471 | { |
97aff369 | 1472 | dVAR; |
a0d0e21e LW |
1473 | I32 optype; |
1474 | ||
1475 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1476 | SV *sv; |
06b5626a | 1477 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1478 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1479 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1480 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1481 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1482 | case CXt_SUBST: |
1483 | POPSUBST(cx); | |
1484 | continue; /* not break */ | |
a0d0e21e | 1485 | case CXt_SUB: |
b0d9ce38 GS |
1486 | POPSUB(cx,sv); |
1487 | LEAVESUB(sv); | |
a0d0e21e LW |
1488 | break; |
1489 | case CXt_EVAL: | |
1490 | POPEVAL(cx); | |
1491 | break; | |
c6fdafd0 | 1492 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1493 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1494 | case CXt_LOOP_FOR: |
1495 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1496 | POPLOOP(cx); |
1497 | break; | |
0a753a76 | 1498 | case CXt_NULL: |
a0d0e21e | 1499 | break; |
7766f137 GS |
1500 | case CXt_FORMAT: |
1501 | POPFORMAT(cx); | |
1502 | break; | |
a0d0e21e | 1503 | } |
c90c0ff4 | 1504 | cxstack_ix--; |
a0d0e21e | 1505 | } |
1b6737cc | 1506 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1507 | } |
1508 | ||
5a844595 GS |
1509 | void |
1510 | Perl_qerror(pTHX_ SV *err) | |
1511 | { | |
97aff369 | 1512 | dVAR; |
7918f24d NC |
1513 | |
1514 | PERL_ARGS_ASSERT_QERROR; | |
1515 | ||
5a844595 GS |
1516 | if (PL_in_eval) |
1517 | sv_catsv(ERRSV, err); | |
1518 | else if (PL_errors) | |
1519 | sv_catsv(PL_errors, err); | |
1520 | else | |
be2597df | 1521 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1522 | if (PL_parser) |
1523 | ++PL_parser->error_count; | |
5a844595 GS |
1524 | } |
1525 | ||
a0d0e21e | 1526 | OP * |
35a4481c | 1527 | Perl_die_where(pTHX_ const char *message, STRLEN msglen) |
a0d0e21e | 1528 | { |
27da23d5 | 1529 | dVAR; |
87582a92 | 1530 | |
3280af22 | 1531 | if (PL_in_eval) { |
a0d0e21e | 1532 | I32 cxix; |
a0d0e21e | 1533 | I32 gimme; |
a0d0e21e | 1534 | |
4e6ea2c3 | 1535 | if (message) { |
faef0170 | 1536 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1537 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1538 | SV * const err = ERRSV; |
c445ea15 | 1539 | const char *e = NULL; |
98eae8f5 | 1540 | if (!SvPOK(err)) |
76f68e9b | 1541 | sv_setpvs(err,""); |
98eae8f5 | 1542 | else if (SvCUR(err) >= sizeof(prefix)+msglen-1) { |
0510663f | 1543 | STRLEN len; |
349d4f2f | 1544 | e = SvPV_const(err, len); |
0510663f | 1545 | e += len - msglen; |
98eae8f5 | 1546 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1547 | e = NULL; |
98eae8f5 GS |
1548 | } |
1549 | if (!e) { | |
1550 | SvGROW(err, SvCUR(err)+sizeof(prefix)+msglen); | |
1551 | sv_catpvn(err, prefix, sizeof(prefix)-1); | |
1552 | sv_catpvn(err, message, msglen); | |
e476b1b5 | 1553 | if (ckWARN(WARN_MISC)) { |
504618e9 | 1554 | const STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1; |
f1f66076 RGS |
1555 | Perl_warner(aTHX_ packWARN(WARN_MISC), "%s", |
1556 | SvPVX_const(err)+start); | |
4e6ea2c3 | 1557 | } |
4633a7c4 | 1558 | } |
4633a7c4 | 1559 | } |
1aa99e6b | 1560 | else { |
06bf62c7 | 1561 | sv_setpvn(ERRSV, message, msglen); |
1aa99e6b | 1562 | } |
4633a7c4 | 1563 | } |
4e6ea2c3 | 1564 | |
5a844595 GS |
1565 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1566 | && PL_curstackinfo->si_prev) | |
1567 | { | |
bac4b2ad | 1568 | dounwind(-1); |
d3acc0f7 | 1569 | POPSTACK; |
bac4b2ad | 1570 | } |
e336de0d | 1571 | |
a0d0e21e LW |
1572 | if (cxix >= 0) { |
1573 | I32 optype; | |
35a4481c | 1574 | register PERL_CONTEXT *cx; |
901017d6 | 1575 | SV **newsp; |
a0d0e21e LW |
1576 | |
1577 | if (cxix < cxstack_ix) | |
1578 | dounwind(cxix); | |
1579 | ||
3280af22 | 1580 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1581 | if (CxTYPE(cx) != CXt_EVAL) { |
16869676 | 1582 | if (!message) |
349d4f2f | 1583 | message = SvPVx_const(ERRSV, msglen); |
10edeb5d | 1584 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1585 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1586 | my_exit(1); |
1587 | } | |
1588 | POPEVAL(cx); | |
1589 | ||
1590 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1591 | *++newsp = &PL_sv_undef; |
1592 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1593 | |
1594 | LEAVE; | |
748a9306 | 1595 | |
7fb6a879 GS |
1596 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1597 | * XXX it might be better to find a way to avoid messing with | |
1598 | * PL_curcop in save_re_context() instead, but this is a more | |
1599 | * minimal fix --GSAR */ | |
1600 | PL_curcop = cx->blk_oldcop; | |
1601 | ||
7a2e2cd6 | 1602 | if (optype == OP_REQUIRE) { |
44f8325f | 1603 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1604 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1605 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1606 | &PL_sv_undef, 0); |
5a844595 GS |
1607 | DIE(aTHX_ "%sCompilation failed in require", |
1608 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1609 | } |
f39bc417 DM |
1610 | assert(CxTYPE(cx) == CXt_EVAL); |
1611 | return cx->blk_eval.retop; | |
a0d0e21e LW |
1612 | } |
1613 | } | |
9cc2fdd3 | 1614 | if (!message) |
349d4f2f | 1615 | message = SvPVx_const(ERRSV, msglen); |
87582a92 | 1616 | |
7ff03255 | 1617 | write_to_stderr(message, msglen); |
f86702cc | 1618 | my_failure_exit(); |
1619 | /* NOTREACHED */ | |
a0d0e21e LW |
1620 | return 0; |
1621 | } | |
1622 | ||
1623 | PP(pp_xor) | |
1624 | { | |
97aff369 | 1625 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1626 | if (SvTRUE(left) != SvTRUE(right)) |
1627 | RETSETYES; | |
1628 | else | |
1629 | RETSETNO; | |
1630 | } | |
1631 | ||
a0d0e21e LW |
1632 | PP(pp_caller) |
1633 | { | |
97aff369 | 1634 | dVAR; |
39644a26 | 1635 | dSP; |
a0d0e21e | 1636 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1637 | register const PERL_CONTEXT *cx; |
1638 | register const PERL_CONTEXT *ccstack = cxstack; | |
1639 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1640 | I32 gimme; |
06b5626a | 1641 | const char *stashname; |
a0d0e21e LW |
1642 | I32 count = 0; |
1643 | ||
1644 | if (MAXARG) | |
1645 | count = POPi; | |
27d41816 | 1646 | |
a0d0e21e | 1647 | for (;;) { |
2c375eb9 GS |
1648 | /* we may be in a higher stacklevel, so dig down deeper */ |
1649 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1650 | top_si = top_si->si_prev; | |
1651 | ccstack = top_si->si_cxstack; | |
1652 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1653 | } | |
a0d0e21e | 1654 | if (cxix < 0) { |
27d41816 DM |
1655 | if (GIMME != G_ARRAY) { |
1656 | EXTEND(SP, 1); | |
a0d0e21e | 1657 | RETPUSHUNDEF; |
27d41816 | 1658 | } |
a0d0e21e LW |
1659 | RETURN; |
1660 | } | |
f2a7f298 DG |
1661 | /* caller() should not report the automatic calls to &DB::sub */ |
1662 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1663 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1664 | count++; |
1665 | if (!count--) | |
1666 | break; | |
2c375eb9 | 1667 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1668 | } |
2c375eb9 GS |
1669 | |
1670 | cx = &ccstack[cxix]; | |
7766f137 | 1671 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1672 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1673 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1674 | field below is defined for any cx. */ |
f2a7f298 DG |
1675 | /* caller() should not report the automatic calls to &DB::sub */ |
1676 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1677 | cx = &ccstack[dbcxix]; |
06a5b730 | 1678 | } |
1679 | ||
ed094faf | 1680 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1681 | if (GIMME != G_ARRAY) { |
27d41816 | 1682 | EXTEND(SP, 1); |
ed094faf | 1683 | if (!stashname) |
3280af22 | 1684 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1685 | else { |
1686 | dTARGET; | |
ed094faf | 1687 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1688 | PUSHs(TARG); |
1689 | } | |
a0d0e21e LW |
1690 | RETURN; |
1691 | } | |
a0d0e21e | 1692 | |
b3ca2e83 | 1693 | EXTEND(SP, 11); |
27d41816 | 1694 | |
ed094faf | 1695 | if (!stashname) |
3280af22 | 1696 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1697 | else |
6e449a3a MHM |
1698 | mPUSHs(newSVpv(stashname, 0)); |
1699 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1700 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1701 | if (!MAXARG) |
1702 | RETURN; | |
7766f137 | 1703 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1704 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1705 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1706 | if (isGV(cvgv)) { |
561b68a9 | 1707 | SV * const sv = newSV(0); |
c445ea15 | 1708 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1709 | mPUSHs(sv); |
bf38a478 | 1710 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1711 | } |
1712 | else { | |
84bafc02 | 1713 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1714 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1715 | } |
a0d0e21e LW |
1716 | } |
1717 | else { | |
84bafc02 | 1718 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1719 | mPUSHi(0); |
a0d0e21e | 1720 | } |
54310121 | 1721 | gimme = (I32)cx->blk_gimme; |
1722 | if (gimme == G_VOID) | |
3280af22 | 1723 | PUSHs(&PL_sv_undef); |
54310121 | 1724 | else |
98625aca | 1725 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1726 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1727 | /* eval STRING */ |
85a64632 | 1728 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1729 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1730 | PUSHs(&PL_sv_no); |
0f79a09d | 1731 | } |
811a4de9 | 1732 | /* require */ |
0f79a09d | 1733 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1734 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1735 | PUSHs(&PL_sv_yes); |
06a5b730 | 1736 | } |
811a4de9 GS |
1737 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1738 | else { | |
1739 | PUSHs(&PL_sv_undef); | |
1740 | PUSHs(&PL_sv_undef); | |
1741 | } | |
4633a7c4 | 1742 | } |
a682de96 GS |
1743 | else { |
1744 | PUSHs(&PL_sv_undef); | |
1745 | PUSHs(&PL_sv_undef); | |
1746 | } | |
bafb2adc | 1747 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1748 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1749 | { |
66a1b24b AL |
1750 | AV * const ary = cx->blk_sub.argarray; |
1751 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1752 | |
3280af22 | 1753 | if (!PL_dbargs) { |
71315bf2 | 1754 | GV* const tmpgv = gv_fetchpvs("DB::args", GV_ADD, SVt_PVAV); |
0bd48802 | 1755 | PL_dbargs = GvAV(gv_AVadd(tmpgv)); |
a5f75d66 | 1756 | GvMULTI_on(tmpgv); |
3ddcf04c | 1757 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1758 | } |
1759 | ||
3280af22 NIS |
1760 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1761 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1762 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1763 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1764 | } |
f3aa04c2 GS |
1765 | /* XXX only hints propagated via op_private are currently |
1766 | * visible (others are not easily accessible, since they | |
1767 | * use the global PL_hints) */ | |
6e449a3a | 1768 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1769 | { |
1770 | SV * mask ; | |
72dc9ed5 | 1771 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1772 | |
ac27b0f5 | 1773 | if (old_warnings == pWARN_NONE || |
114bafba | 1774 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1775 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1776 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1777 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1778 | /* Get the bit mask for $warnings::Bits{all}, because | |
1779 | * it could have been extended by warnings::register */ | |
1780 | SV **bits_all; | |
6673a63c | 1781 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1782 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1783 | mask = newSVsv(*bits_all); |
1784 | } | |
1785 | else { | |
1786 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1787 | } | |
1788 | } | |
e476b1b5 | 1789 | else |
72dc9ed5 | 1790 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1791 | mPUSHs(mask); |
e476b1b5 | 1792 | } |
b3ca2e83 | 1793 | |
c28fe1ec | 1794 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1795 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1796 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1797 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1798 | : &PL_sv_undef); |
a0d0e21e LW |
1799 | RETURN; |
1800 | } | |
1801 | ||
a0d0e21e LW |
1802 | PP(pp_reset) |
1803 | { | |
97aff369 | 1804 | dVAR; |
39644a26 | 1805 | dSP; |
10edeb5d | 1806 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1807 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1808 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1809 | RETURN; |
1810 | } | |
1811 | ||
dd2155a4 DM |
1812 | /* like pp_nextstate, but used instead when the debugger is active */ |
1813 | ||
a0d0e21e LW |
1814 | PP(pp_dbstate) |
1815 | { | |
27da23d5 | 1816 | dVAR; |
533c011a | 1817 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1818 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1819 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1820 | FREETMPS; |
1821 | ||
5df8de69 DM |
1822 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1823 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1824 | { |
39644a26 | 1825 | dSP; |
c09156bb | 1826 | register PERL_CONTEXT *cx; |
f54cb97a | 1827 | const I32 gimme = G_ARRAY; |
eb160463 | 1828 | U8 hasargs; |
0bd48802 AL |
1829 | GV * const gv = PL_DBgv; |
1830 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1831 | |
a0d0e21e | 1832 | if (!cv) |
cea2e8a9 | 1833 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1834 | |
aea4f609 DM |
1835 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1836 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1837 | return NORMAL; |
748a9306 | 1838 | |
4633a7c4 LW |
1839 | ENTER; |
1840 | SAVETMPS; | |
1841 | ||
3280af22 | 1842 | SAVEI32(PL_debug); |
55497cff | 1843 | SAVESTACK_POS(); |
3280af22 | 1844 | PL_debug = 0; |
748a9306 | 1845 | hasargs = 0; |
924508f0 | 1846 | SPAGAIN; |
748a9306 | 1847 | |
aed2304a | 1848 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1849 | CvDEPTH(cv)++; |
1850 | PUSHMARK(SP); | |
1851 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1852 | CvDEPTH(cv)--; | |
1853 | FREETMPS; | |
1854 | LEAVE; | |
1855 | return NORMAL; | |
1856 | } | |
1857 | else { | |
1858 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1859 | PUSHSUB_DB(cx); | |
1860 | cx->blk_sub.retop = PL_op->op_next; | |
1861 | CvDEPTH(cv)++; | |
1862 | SAVECOMPPAD(); | |
1863 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1864 | RETURNOP(CvSTART(cv)); | |
1865 | } | |
a0d0e21e LW |
1866 | } |
1867 | else | |
1868 | return NORMAL; | |
1869 | } | |
1870 | ||
a0d0e21e LW |
1871 | PP(pp_enteriter) |
1872 | { | |
27da23d5 | 1873 | dVAR; dSP; dMARK; |
c09156bb | 1874 | register PERL_CONTEXT *cx; |
f54cb97a | 1875 | const I32 gimme = GIMME_V; |
a0d0e21e | 1876 | SV **svp; |
840fe433 | 1877 | U8 cxtype = CXt_LOOP_FOR; |
7766f137 | 1878 | #ifdef USE_ITHREADS |
e846cb92 | 1879 | PAD *iterdata; |
7766f137 | 1880 | #endif |
a0d0e21e | 1881 | |
4633a7c4 LW |
1882 | ENTER; |
1883 | SAVETMPS; | |
1884 | ||
533c011a | 1885 | if (PL_op->op_targ) { |
14f338dc DM |
1886 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1887 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1888 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1889 | SVs_PADSTALE, SVs_PADSTALE); | |
1890 | } | |
09edbca0 | 1891 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
c3564e5c | 1892 | #ifndef USE_ITHREADS |
dd2155a4 | 1893 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
c3564e5c | 1894 | #else |
e846cb92 | 1895 | iterdata = NULL; |
7766f137 | 1896 | #endif |
54b9620d MB |
1897 | } |
1898 | else { | |
159b6efe | 1899 | GV * const gv = MUTABLE_GV(POPs); |
7766f137 | 1900 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1901 | SAVEGENERICSV(*svp); |
561b68a9 | 1902 | *svp = newSV(0); |
7766f137 | 1903 | #ifdef USE_ITHREADS |
e846cb92 | 1904 | iterdata = (PAD*)gv; |
7766f137 | 1905 | #endif |
54b9620d | 1906 | } |
4633a7c4 | 1907 | |
0d863452 RH |
1908 | if (PL_op->op_private & OPpITER_DEF) |
1909 | cxtype |= CXp_FOR_DEF; | |
1910 | ||
a0d0e21e LW |
1911 | ENTER; |
1912 | ||
7766f137 GS |
1913 | PUSHBLOCK(cx, cxtype, SP); |
1914 | #ifdef USE_ITHREADS | |
e846cb92 | 1915 | PUSHLOOP_FOR(cx, iterdata, MARK, PL_op->op_targ); |
7766f137 | 1916 | #else |
52d1f6fb | 1917 | PUSHLOOP_FOR(cx, svp, MARK, 0); |
7766f137 | 1918 | #endif |
533c011a | 1919 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
1920 | SV *maybe_ary = POPs; |
1921 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 1922 | dPOPss; |
d01136d6 | 1923 | SV * const right = maybe_ary; |
984a4bea RD |
1924 | SvGETMAGIC(sv); |
1925 | SvGETMAGIC(right); | |
4fe3f0fa | 1926 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 1927 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
1928 | cx->cx_type |= CXt_LOOP_LAZYIV; |
1929 | /* Make sure that no-one re-orders cop.h and breaks our | |
1930 | assumptions */ | |
1931 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
1932 | #ifdef NV_PRESERVES_UV |
1933 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
1934 | (SvNV(sv) > (NV)IV_MAX))) | |
1935 | || | |
1936 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
1937 | (SvNV(right) < (NV)IV_MIN)))) | |
1938 | #else | |
1939 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
1940 | || | |
1941 | ((SvNV(sv) > 0) && | |
1942 | ((SvUV(sv) > (UV)IV_MAX) || | |
1943 | (SvNV(sv) > (NV)UV_MAX))))) | |
1944 | || | |
1945 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
1946 | || | |
1947 | ((SvNV(right) > 0) && | |
1948 | ((SvUV(right) > (UV)IV_MAX) || | |
1949 | (SvNV(right) > (NV)UV_MAX)))))) | |
1950 | #endif | |
076d9a11 | 1951 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
1952 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
1953 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
1954 | #ifdef DEBUGGING |
1955 | /* for correct -Dstv display */ | |
1956 | cx->blk_oldsp = sp - PL_stack_base; | |
1957 | #endif | |
89ea2908 | 1958 | } |
3f63a782 | 1959 | else { |
d01136d6 BS |
1960 | cx->cx_type &= ~CXTYPEMASK; |
1961 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
1962 | /* Make sure that no-one re-orders cop.h and breaks our | |
1963 | assumptions */ | |
1964 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
1965 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
1966 | cx->blk_loop.state_u.lazysv.end = right; | |
1967 | SvREFCNT_inc(right); | |
1968 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
1969 | /* This will do the upgrade to SVt_PV, and warn if the value |
1970 | is uninitialised. */ | |
10516c54 | 1971 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
1972 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
1973 | to replace !SvOK() with a pointer to "". */ | |
1974 | if (!SvOK(right)) { | |
1975 | SvREFCNT_dec(right); | |
d01136d6 | 1976 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 1977 | } |
3f63a782 | 1978 | } |
89ea2908 | 1979 | } |
d01136d6 | 1980 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 1981 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
1982 | SvREFCNT_inc(maybe_ary); |
1983 | cx->blk_loop.state_u.ary.ix = | |
1984 | (PL_op->op_private & OPpITER_REVERSED) ? | |
1985 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
1986 | -1; | |
ef3e5ea9 | 1987 | } |
89ea2908 | 1988 | } |
d01136d6 BS |
1989 | else { /* iterating over items on the stack */ |
1990 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 1991 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 1992 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
1993 | } |
1994 | else { | |
d01136d6 | 1995 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 1996 | } |
4633a7c4 | 1997 | } |
a0d0e21e LW |
1998 | |
1999 | RETURN; | |
2000 | } | |
2001 | ||
2002 | PP(pp_enterloop) | |
2003 | { | |
27da23d5 | 2004 | dVAR; dSP; |
c09156bb | 2005 | register PERL_CONTEXT *cx; |
f54cb97a | 2006 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
2007 | |
2008 | ENTER; | |
2009 | SAVETMPS; | |
2010 | ENTER; | |
2011 | ||
3b719c58 NC |
2012 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2013 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2014 | |
2015 | RETURN; | |
2016 | } | |
2017 | ||
2018 | PP(pp_leaveloop) | |
2019 | { | |
27da23d5 | 2020 | dVAR; dSP; |
c09156bb | 2021 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2022 | I32 gimme; |
2023 | SV **newsp; | |
2024 | PMOP *newpm; | |
2025 | SV **mark; | |
2026 | ||
2027 | POPBLOCK(cx,newpm); | |
3b719c58 | 2028 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2029 | mark = newsp; |
a8bba7fa | 2030 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2031 | |
a1f49e72 | 2032 | TAINT_NOT; |
54310121 | 2033 | if (gimme == G_VOID) |
6f207bd3 | 2034 | NOOP; |
54310121 | 2035 | else if (gimme == G_SCALAR) { |
2036 | if (mark < SP) | |
2037 | *++newsp = sv_mortalcopy(*SP); | |
2038 | else | |
3280af22 | 2039 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2040 | } |
2041 | else { | |
a1f49e72 | 2042 | while (mark < SP) { |
a0d0e21e | 2043 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2044 | TAINT_NOT; /* Each item is independent */ |
2045 | } | |
a0d0e21e | 2046 | } |
f86702cc | 2047 | SP = newsp; |
2048 | PUTBACK; | |
2049 | ||
a8bba7fa | 2050 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2051 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2052 | |
a0d0e21e LW |
2053 | LEAVE; |
2054 | LEAVE; | |
2055 | ||
f86702cc | 2056 | return NORMAL; |
a0d0e21e LW |
2057 | } |
2058 | ||
2059 | PP(pp_return) | |
2060 | { | |
27da23d5 | 2061 | dVAR; dSP; dMARK; |
c09156bb | 2062 | register PERL_CONTEXT *cx; |
f86702cc | 2063 | bool popsub2 = FALSE; |
b45de488 | 2064 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2065 | I32 gimme; |
2066 | SV **newsp; | |
2067 | PMOP *newpm; | |
2068 | I32 optype = 0; | |
b0d9ce38 | 2069 | SV *sv; |
f39bc417 | 2070 | OP *retop; |
a0d0e21e | 2071 | |
0bd48802 AL |
2072 | const I32 cxix = dopoptosub(cxstack_ix); |
2073 | ||
9850bf21 RH |
2074 | if (cxix < 0) { |
2075 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2076 | * sort block, which is a CXt_NULL | |
2077 | * not a CXt_SUB */ | |
2078 | dounwind(0); | |
d7507f74 RH |
2079 | PL_stack_base[1] = *PL_stack_sp; |
2080 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2081 | return 0; |
2082 | } | |
9850bf21 RH |
2083 | else |
2084 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2085 | } |
a0d0e21e LW |
2086 | if (cxix < cxstack_ix) |
2087 | dounwind(cxix); | |
2088 | ||
d7507f74 RH |
2089 | if (CxMULTICALL(&cxstack[cxix])) { |
2090 | gimme = cxstack[cxix].blk_gimme; | |
2091 | if (gimme == G_VOID) | |
2092 | PL_stack_sp = PL_stack_base; | |
2093 | else if (gimme == G_SCALAR) { | |
2094 | PL_stack_base[1] = *PL_stack_sp; | |
2095 | PL_stack_sp = PL_stack_base + 1; | |
2096 | } | |
9850bf21 | 2097 | return 0; |
d7507f74 | 2098 | } |
9850bf21 | 2099 | |
a0d0e21e | 2100 | POPBLOCK(cx,newpm); |
6b35e009 | 2101 | switch (CxTYPE(cx)) { |
a0d0e21e | 2102 | case CXt_SUB: |
f86702cc | 2103 | popsub2 = TRUE; |
f39bc417 | 2104 | retop = cx->blk_sub.retop; |
5dd42e15 | 2105 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2106 | break; |
2107 | case CXt_EVAL: | |
b45de488 GS |
2108 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2109 | clear_errsv = TRUE; | |
a0d0e21e | 2110 | POPEVAL(cx); |
f39bc417 | 2111 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2112 | if (CxTRYBLOCK(cx)) |
2113 | break; | |
067f92a0 | 2114 | lex_end(); |
748a9306 LW |
2115 | if (optype == OP_REQUIRE && |
2116 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2117 | { | |
54310121 | 2118 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2119 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2120 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 2121 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
748a9306 | 2122 | } |
a0d0e21e | 2123 | break; |
7766f137 GS |
2124 | case CXt_FORMAT: |
2125 | POPFORMAT(cx); | |
f39bc417 | 2126 | retop = cx->blk_sub.retop; |
7766f137 | 2127 | break; |
a0d0e21e | 2128 | default: |
cea2e8a9 | 2129 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2130 | } |
2131 | ||
a1f49e72 | 2132 | TAINT_NOT; |
a0d0e21e | 2133 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2134 | if (MARK < SP) { |
2135 | if (popsub2) { | |
a8bba7fa | 2136 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2137 | if (SvTEMP(TOPs)) { |
2138 | *++newsp = SvREFCNT_inc(*SP); | |
2139 | FREETMPS; | |
2140 | sv_2mortal(*newsp); | |
959e3673 GS |
2141 | } |
2142 | else { | |
2143 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2144 | FREETMPS; |
959e3673 GS |
2145 | *++newsp = sv_mortalcopy(sv); |
2146 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2147 | } |
959e3673 GS |
2148 | } |
2149 | else | |
a29cdaf0 | 2150 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2151 | } |
2152 | else | |
a29cdaf0 | 2153 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2154 | } |
2155 | else | |
3280af22 | 2156 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2157 | } |
54310121 | 2158 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2159 | while (++MARK <= SP) { |
f86702cc | 2160 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2161 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2162 | TAINT_NOT; /* Each item is independent */ |
2163 | } | |
a0d0e21e | 2164 | } |
3280af22 | 2165 | PL_stack_sp = newsp; |
a0d0e21e | 2166 | |
5dd42e15 | 2167 | LEAVE; |
f86702cc | 2168 | /* Stack values are safe: */ |
2169 | if (popsub2) { | |
5dd42e15 | 2170 | cxstack_ix--; |
b0d9ce38 | 2171 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2172 | } |
b0d9ce38 | 2173 | else |
c445ea15 | 2174 | sv = NULL; |
3280af22 | 2175 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2176 | |
b0d9ce38 | 2177 | LEAVESUB(sv); |
8433848b | 2178 | if (clear_errsv) { |
ab69dbc2 | 2179 | CLEAR_ERRSV(); |
8433848b | 2180 | } |
f39bc417 | 2181 | return retop; |
a0d0e21e LW |
2182 | } |
2183 | ||
2184 | PP(pp_last) | |
2185 | { | |
27da23d5 | 2186 | dVAR; dSP; |
a0d0e21e | 2187 | I32 cxix; |
c09156bb | 2188 | register PERL_CONTEXT *cx; |
f86702cc | 2189 | I32 pop2 = 0; |
a0d0e21e | 2190 | I32 gimme; |
8772537c | 2191 | I32 optype; |
a0d0e21e LW |
2192 | OP *nextop; |
2193 | SV **newsp; | |
2194 | PMOP *newpm; | |
a8bba7fa | 2195 | SV **mark; |
c445ea15 | 2196 | SV *sv = NULL; |
9d4ba2ae | 2197 | |
a0d0e21e | 2198 | |
533c011a | 2199 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2200 | cxix = dopoptoloop(cxstack_ix); |
2201 | if (cxix < 0) | |
a651a37d | 2202 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2203 | } |
2204 | else { | |
2205 | cxix = dopoptolabel(cPVOP->op_pv); | |
2206 | if (cxix < 0) | |
cea2e8a9 | 2207 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2208 | } |
2209 | if (cxix < cxstack_ix) | |
2210 | dounwind(cxix); | |
2211 | ||
2212 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2213 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2214 | mark = newsp; |
6b35e009 | 2215 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2216 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2217 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2218 | case CXt_LOOP_FOR: |
2219 | case CXt_LOOP_PLAIN: | |
2220 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2221 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2222 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2223 | break; |
f86702cc | 2224 | case CXt_SUB: |
f86702cc | 2225 | pop2 = CXt_SUB; |
f39bc417 | 2226 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2227 | break; |
f86702cc | 2228 | case CXt_EVAL: |
2229 | POPEVAL(cx); | |
f39bc417 | 2230 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2231 | break; |
7766f137 GS |
2232 | case CXt_FORMAT: |
2233 | POPFORMAT(cx); | |
f39bc417 | 2234 | nextop = cx->blk_sub.retop; |
7766f137 | 2235 | break; |
a0d0e21e | 2236 | default: |
cea2e8a9 | 2237 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2238 | } |
2239 | ||
a1f49e72 | 2240 | TAINT_NOT; |
a0d0e21e | 2241 | if (gimme == G_SCALAR) { |
f86702cc | 2242 | if (MARK < SP) |
2243 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2244 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2245 | else |
3280af22 | 2246 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2247 | } |
54310121 | 2248 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2249 | while (++MARK <= SP) { |
f86702cc | 2250 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2251 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2252 | TAINT_NOT; /* Each item is independent */ |
2253 | } | |
f86702cc | 2254 | } |
2255 | SP = newsp; | |
2256 | PUTBACK; | |
2257 | ||
5dd42e15 DM |
2258 | LEAVE; |
2259 | cxstack_ix--; | |
f86702cc | 2260 | /* Stack values are safe: */ |
2261 | switch (pop2) { | |
c6fdafd0 | 2262 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2263 | case CXt_LOOP_PLAIN: |
d01136d6 | 2264 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2265 | case CXt_LOOP_FOR: |
a8bba7fa | 2266 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2267 | LEAVE; |
f86702cc | 2268 | break; |
2269 | case CXt_SUB: | |
b0d9ce38 | 2270 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2271 | break; |
a0d0e21e | 2272 | } |
3280af22 | 2273 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2274 | |
b0d9ce38 | 2275 | LEAVESUB(sv); |
9d4ba2ae AL |
2276 | PERL_UNUSED_VAR(optype); |
2277 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2278 | return nextop; |
a0d0e21e LW |
2279 | } |
2280 | ||
2281 | PP(pp_next) | |
2282 | { | |
27da23d5 | 2283 | dVAR; |
a0d0e21e | 2284 | I32 cxix; |
c09156bb | 2285 | register PERL_CONTEXT *cx; |
85538317 | 2286 | I32 inner; |
a0d0e21e | 2287 | |
533c011a | 2288 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2289 | cxix = dopoptoloop(cxstack_ix); |
2290 | if (cxix < 0) | |
a651a37d | 2291 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2292 | } |
2293 | else { | |
2294 | cxix = dopoptolabel(cPVOP->op_pv); | |
2295 | if (cxix < 0) | |
cea2e8a9 | 2296 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2297 | } |
2298 | if (cxix < cxstack_ix) | |
2299 | dounwind(cxix); | |
2300 | ||
85538317 GS |
2301 | /* clear off anything above the scope we're re-entering, but |
2302 | * save the rest until after a possible continue block */ | |
2303 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2304 | TOPBLOCK(cx); |
85538317 GS |
2305 | if (PL_scopestack_ix < inner) |
2306 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2307 | PL_curcop = cx->blk_oldcop; |
022eaa24 | 2308 | return CX_LOOP_NEXTOP_GET(cx); |
a0d0e21e LW |
2309 | } |
2310 | ||
2311 | PP(pp_redo) | |
2312 | { | |
27da23d5 | 2313 | dVAR; |
a0d0e21e | 2314 | I32 cxix; |
c09156bb | 2315 | register PERL_CONTEXT *cx; |
a0d0e21e | 2316 | I32 oldsave; |
a034e688 | 2317 | OP* redo_op; |
a0d0e21e | 2318 | |
533c011a | 2319 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2320 | cxix = dopoptoloop(cxstack_ix); |
2321 | if (cxix < 0) | |
a651a37d | 2322 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2323 | } |
2324 | else { | |
2325 | cxix = dopoptolabel(cPVOP->op_pv); | |
2326 | if (cxix < 0) | |
cea2e8a9 | 2327 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2328 | } |
2329 | if (cxix < cxstack_ix) | |
2330 | dounwind(cxix); | |
2331 | ||
022eaa24 | 2332 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2333 | if (redo_op->op_type == OP_ENTER) { |
2334 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2335 | cxstack_ix++; | |
2336 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2337 | redo_op = redo_op->op_next; | |
2338 | } | |
2339 | ||
a0d0e21e | 2340 | TOPBLOCK(cx); |
3280af22 | 2341 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2342 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2343 | FREETMPS; |
3a1b2b9e | 2344 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2345 | return redo_op; |
a0d0e21e LW |
2346 | } |
2347 | ||
0824fdcb | 2348 | STATIC OP * |
bfed75c6 | 2349 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2350 | { |
97aff369 | 2351 | dVAR; |
a0d0e21e | 2352 | OP **ops = opstack; |
bfed75c6 | 2353 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2354 | |
7918f24d NC |
2355 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2356 | ||
fc36a67e | 2357 | if (ops >= oplimit) |
cea2e8a9 | 2358 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2359 | if (o->op_type == OP_LEAVE || |
2360 | o->op_type == OP_SCOPE || | |
2361 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2362 | o->op_type == OP_LEAVESUB || |
11343788 | 2363 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2364 | { |
5dc0d613 | 2365 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2366 | if (ops >= oplimit) |
cea2e8a9 | 2367 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2368 | } |
c4aa4e48 | 2369 | *ops = 0; |
11343788 | 2370 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2371 | OP *kid; |
a0d0e21e | 2372 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2373 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
c4aa4e48 | 2374 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
4b65a919 | 2375 | CopLABEL(kCOP) && strEQ(CopLABEL(kCOP), label)) |
a0d0e21e LW |
2376 | return kid; |
2377 | } | |
11343788 | 2378 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2379 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2380 | continue; |
ed8d0fe2 SM |
2381 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2382 | if (ops == opstack) | |
2383 | *ops++ = kid; | |
2384 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2385 | ops[-1]->op_type == OP_DBSTATE) | |
2386 | ops[-1] = kid; | |
2387 | else | |
2388 | *ops++ = kid; | |
2389 | } | |
155aba94 | 2390 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2391 | return o; |
a0d0e21e LW |
2392 | } |
2393 | } | |
c4aa4e48 | 2394 | *ops = 0; |
a0d0e21e LW |
2395 | return 0; |
2396 | } | |
2397 | ||
a0d0e21e LW |
2398 | PP(pp_goto) |
2399 | { | |
27da23d5 | 2400 | dVAR; dSP; |
cbbf8932 | 2401 | OP *retop = NULL; |
a0d0e21e | 2402 | I32 ix; |
c09156bb | 2403 | register PERL_CONTEXT *cx; |
fc36a67e | 2404 | #define GOTO_DEPTH 64 |
2405 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2406 | const char *label = NULL; |
bfed75c6 AL |
2407 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2408 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2409 | |
533c011a | 2410 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2411 | SV * const sv = POPs; |
a0d0e21e LW |
2412 | |
2413 | /* This egregious kludge implements goto &subroutine */ | |
2414 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2415 | I32 cxix; | |
c09156bb | 2416 | register PERL_CONTEXT *cx; |
ea726b52 | 2417 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2418 | SV** mark; |
2419 | I32 items = 0; | |
2420 | I32 oldsave; | |
b1464ded | 2421 | bool reified = 0; |
a0d0e21e | 2422 | |
e8f7dd13 | 2423 | retry: |
4aa0a1f7 | 2424 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2425 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2426 | if (gv) { |
7fc63493 | 2427 | GV *autogv; |
e8f7dd13 GS |
2428 | SV *tmpstr; |
2429 | /* autoloaded stub? */ | |
2430 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2431 | goto retry; | |
2432 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2433 | GvNAMELEN(gv), FALSE); | |
2434 | if (autogv && (cv = GvCV(autogv))) | |
2435 | goto retry; | |
2436 | tmpstr = sv_newmortal(); | |
c445ea15 | 2437 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2438 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2439 | } |
cea2e8a9 | 2440 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2441 | } |
2442 | ||
a0d0e21e | 2443 | /* First do some returnish stuff. */ |
b37c2d43 | 2444 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2445 | FREETMPS; |
a0d0e21e LW |
2446 | cxix = dopoptosub(cxstack_ix); |
2447 | if (cxix < 0) | |
cea2e8a9 | 2448 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2449 | if (cxix < cxstack_ix) |
2450 | dounwind(cxix); | |
2451 | TOPBLOCK(cx); | |
2d43a17f | 2452 | SPAGAIN; |
564abe23 | 2453 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2454 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2455 | if (CxREALEVAL(cx)) |
2456 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2457 | else | |
2458 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2459 | } |
9850bf21 RH |
2460 | else if (CxMULTICALL(cx)) |
2461 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2462 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2463 | /* put @_ back onto stack */ |
a0d0e21e | 2464 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2465 | |
93965878 | 2466 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2467 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2468 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2469 | SvREFCNT_dec(GvAV(PL_defgv)); |
2470 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2471 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2472 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2473 | if (AvREAL(av)) { |
b1464ded DM |
2474 | reified = 1; |
2475 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2476 | av = newAV(); |
2477 | av_extend(av, items-1); | |
11ca45c0 | 2478 | AvREIFY_only(av); |
ad64d0ec | 2479 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2480 | } |
a0d0e21e | 2481 | } |
aed2304a | 2482 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2483 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2484 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2485 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2486 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2487 | } |
a45cdc79 DM |
2488 | mark = SP; |
2489 | SP += items; | |
6b35e009 | 2490 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2491 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2492 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2493 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2494 | LEAVE_SCOPE(oldsave); |
2495 | ||
2496 | /* Now do some callish stuff. */ | |
2497 | SAVETMPS; | |
5023d17a | 2498 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2499 | if (CvISXSUB(cv)) { |
b37c2d43 | 2500 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2501 | SV **newsp; |
2502 | I32 gimme; | |
b1464ded DM |
2503 | if (reified) { |
2504 | I32 index; | |
2505 | for (index=0; index<items; index++) | |
2506 | sv_2mortal(SP[-index]); | |
2507 | } | |
1fa4e549 | 2508 | |
b37c2d43 AL |
2509 | /* XS subs don't have a CxSUB, so pop it */ |
2510 | POPBLOCK(cx, PL_curpm); | |
2511 | /* Push a mark for the start of arglist */ | |
2512 | PUSHMARK(mark); | |
2513 | PUTBACK; | |
2514 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a0d0e21e | 2515 | LEAVE; |
5eff7df7 | 2516 | return retop; |
a0d0e21e LW |
2517 | } |
2518 | else { | |
b37c2d43 | 2519 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2520 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2521 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2522 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2523 | cx->cx_type = CXt_SUB; |
b150fb22 | 2524 | } |
a0d0e21e | 2525 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2526 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2527 | |
a0d0e21e LW |
2528 | CvDEPTH(cv)++; |
2529 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2530 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2531 | else { |
2b9dff67 | 2532 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2533 | sub_crush_depth(cv); |
26019298 | 2534 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2535 | } |
fd617465 DM |
2536 | SAVECOMPPAD(); |
2537 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2538 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2539 | { |
502c6561 | 2540 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2541 | |
3280af22 | 2542 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2543 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2544 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2545 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2546 | |
2547 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2548 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2549 | if (AvARRAY(av) != ary) { |
2550 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2551 | AvARRAY(av) = ary; |
a0d0e21e LW |
2552 | } |
2553 | if (items >= AvMAX(av) + 1) { | |
2554 | AvMAX(av) = items - 1; | |
2555 | Renew(ary,items+1,SV*); | |
2556 | AvALLOC(av) = ary; | |
9c6bc640 | 2557 | AvARRAY(av) = ary; |
a0d0e21e LW |
2558 | } |
2559 | } | |
a45cdc79 | 2560 | ++mark; |
a0d0e21e | 2561 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2562 | AvFILLp(av) = items - 1; |
d8b46c1b | 2563 | assert(!AvREAL(av)); |
b1464ded DM |
2564 | if (reified) { |
2565 | /* transfer 'ownership' of refcnts to new @_ */ | |
2566 | AvREAL_on(av); | |
2567 | AvREIFY_off(av); | |
2568 | } | |
a0d0e21e LW |
2569 | while (items--) { |
2570 | if (*mark) | |
2571 | SvTEMP_off(*mark); | |
2572 | mark++; | |
2573 | } | |
2574 | } | |
491527d0 | 2575 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2576 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2577 | if (PERLDB_GOTO) { |
b96d8cd9 | 2578 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2579 | if (gotocv) { |
2580 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2581 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2582 | PL_stack_sp--; |
2583 | } | |
491527d0 | 2584 | } |
1ce6579f | 2585 | } |
a0d0e21e LW |
2586 | RETURNOP(CvSTART(cv)); |
2587 | } | |
2588 | } | |
1614b0e3 | 2589 | else { |
0510663f | 2590 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2591 | if (!(do_dump || *label)) |
cea2e8a9 | 2592 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2593 | } |
a0d0e21e | 2594 | } |
533c011a | 2595 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2596 | if (! do_dump) |
cea2e8a9 | 2597 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2598 | } |
2599 | else | |
2600 | label = cPVOP->op_pv; | |
2601 | ||
2602 | if (label && *label) { | |
cbbf8932 | 2603 | OP *gotoprobe = NULL; |
3b2447bc | 2604 | bool leaving_eval = FALSE; |
33d34e4c | 2605 | bool in_block = FALSE; |
cbbf8932 | 2606 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2607 | |
2608 | /* find label */ | |
2609 | ||
d4c19fe8 | 2610 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2611 | *enterops = 0; |
2612 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2613 | cx = &cxstack[ix]; | |
6b35e009 | 2614 | switch (CxTYPE(cx)) { |
a0d0e21e | 2615 | case CXt_EVAL: |
3b2447bc | 2616 | leaving_eval = TRUE; |
971ecbe6 | 2617 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2618 | gotoprobe = (last_eval_cx ? |
2619 | last_eval_cx->blk_eval.old_eval_root : | |
2620 | PL_eval_root); | |
2621 | last_eval_cx = cx; | |
9c5794fe RH |
2622 | break; |
2623 | } | |
2624 | /* else fall through */ | |
c6fdafd0 | 2625 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2626 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2627 | case CXt_LOOP_FOR: |
2628 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
2629 | gotoprobe = cx->blk_oldcop->op_sibling; |
2630 | break; | |
2631 | case CXt_SUBST: | |
2632 | continue; | |
2633 | case CXt_BLOCK: | |
33d34e4c | 2634 | if (ix) { |
a0d0e21e | 2635 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2636 | in_block = TRUE; |
2637 | } else | |
3280af22 | 2638 | gotoprobe = PL_main_root; |
a0d0e21e | 2639 | break; |
b3933176 | 2640 | case CXt_SUB: |
9850bf21 | 2641 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2642 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2643 | break; | |
2644 | } | |
2645 | /* FALL THROUGH */ | |
7766f137 | 2646 | case CXt_FORMAT: |
0a753a76 | 2647 | case CXt_NULL: |
a651a37d | 2648 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2649 | default: |
2650 | if (ix) | |
cea2e8a9 | 2651 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2652 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2653 | break; |
2654 | } | |
2b597662 GS |
2655 | if (gotoprobe) { |
2656 | retop = dofindlabel(gotoprobe, label, | |
2657 | enterops, enterops + GOTO_DEPTH); | |
2658 | if (retop) | |
2659 | break; | |
2660 | } | |
3280af22 | 2661 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2662 | } |
2663 | if (!retop) | |
cea2e8a9 | 2664 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2665 | |
3b2447bc RH |
2666 | /* if we're leaving an eval, check before we pop any frames |
2667 | that we're not going to punt, otherwise the error | |
2668 | won't be caught */ | |
2669 | ||
2670 | if (leaving_eval && *enterops && enterops[1]) { | |
2671 | I32 i; | |
2672 | for (i = 1; enterops[i]; i++) | |
2673 | if (enterops[i]->op_type == OP_ENTERITER) | |
2674 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2675 | } | |
2676 | ||
a0d0e21e LW |
2677 | /* pop unwanted frames */ |
2678 | ||
2679 | if (ix < cxstack_ix) { | |
2680 | I32 oldsave; | |
2681 | ||
2682 | if (ix < 0) | |
2683 | ix = 0; | |
2684 | dounwind(ix); | |
2685 | TOPBLOCK(cx); | |
3280af22 | 2686 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2687 | LEAVE_SCOPE(oldsave); |
2688 | } | |
2689 | ||
2690 | /* push wanted frames */ | |
2691 | ||
748a9306 | 2692 | if (*enterops && enterops[1]) { |
0bd48802 | 2693 | OP * const oldop = PL_op; |
33d34e4c AE |
2694 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2695 | for (; enterops[ix]; ix++) { | |
533c011a | 2696 | PL_op = enterops[ix]; |
84902520 TB |
2697 | /* Eventually we may want to stack the needed arguments |
2698 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2699 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2700 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2701 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2702 | } |
533c011a | 2703 | PL_op = oldop; |
a0d0e21e LW |
2704 | } |
2705 | } | |
2706 | ||
2707 | if (do_dump) { | |
a5f75d66 | 2708 | #ifdef VMS |
6b88bc9c | 2709 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2710 | #endif |
3280af22 NIS |
2711 | PL_restartop = retop; |
2712 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2713 | |
2714 | my_unexec(); | |
2715 | ||
3280af22 NIS |
2716 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2717 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2718 | } |
2719 | ||
2720 | RETURNOP(retop); | |
2721 | } | |
2722 | ||
2723 | PP(pp_exit) | |
2724 | { | |
97aff369 | 2725 | dVAR; |
39644a26 | 2726 | dSP; |
a0d0e21e LW |
2727 | I32 anum; |
2728 | ||
2729 | if (MAXARG < 1) | |
2730 | anum = 0; | |
ff0cee69 | 2731 | else { |
a0d0e21e | 2732 | anum = SvIVx(POPs); |
d98f61e7 GS |
2733 | #ifdef VMS |
2734 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2735 | anum = 0; |
96e176bf | 2736 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2737 | #endif |
2738 | } | |
cc3604b1 | 2739 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2740 | #ifdef PERL_MAD |
2741 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2742 | if (anum || !(PL_minus_c && PL_madskills)) | |
2743 | my_exit(anum); | |
2744 | #else | |
a0d0e21e | 2745 | my_exit(anum); |
81d86705 | 2746 | #endif |
3280af22 | 2747 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2748 | RETURN; |
2749 | } | |
2750 | ||
a0d0e21e LW |
2751 | /* Eval. */ |
2752 | ||
0824fdcb | 2753 | STATIC void |
cea2e8a9 | 2754 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2755 | { |
504618e9 | 2756 | const char *s = SvPVX_const(sv); |
890ce7af | 2757 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2758 | I32 line = 1; |
a0d0e21e | 2759 | |
7918f24d NC |
2760 | PERL_ARGS_ASSERT_SAVE_LINES; |
2761 | ||
a0d0e21e | 2762 | while (s && s < send) { |
f54cb97a | 2763 | const char *t; |
b9f83d2f | 2764 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2765 | |
1d963ff3 | 2766 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2767 | if (t) |
2768 | t++; | |
2769 | else | |
2770 | t = send; | |
2771 | ||
2772 | sv_setpvn(tmpstr, s, t - s); | |
2773 | av_store(array, line++, tmpstr); | |
2774 | s = t; | |
2775 | } | |
2776 | } | |
2777 | ||
0824fdcb | 2778 | STATIC OP * |
cea2e8a9 | 2779 | S_docatch(pTHX_ OP *o) |
1e422769 | 2780 | { |
97aff369 | 2781 | dVAR; |
6224f72b | 2782 | int ret; |
06b5626a | 2783 | OP * const oldop = PL_op; |
db36c5a1 | 2784 | dJMPENV; |
1e422769 | 2785 | |
1e422769 | 2786 | #ifdef DEBUGGING |
54310121 | 2787 | assert(CATCH_GET == TRUE); |
1e422769 | 2788 | #endif |
312caa8e | 2789 | PL_op = o; |
8bffa5f8 | 2790 | |
14dd3ad8 | 2791 | JMPENV_PUSH(ret); |
6224f72b | 2792 | switch (ret) { |
312caa8e | 2793 | case 0: |
abd70938 DM |
2794 | assert(cxstack_ix >= 0); |
2795 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2796 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2797 | redo_body: |
85aaa934 | 2798 | CALLRUNOPS(aTHX); |
312caa8e CS |
2799 | break; |
2800 | case 3: | |
8bffa5f8 | 2801 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2802 | |
2803 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2804 | * of the stack; the way die_where() currently works, this | |
2805 | * assumption is valid. In theory The cur_top_env value should be | |
2806 | * returned in another global, the way retop (aka PL_restartop) | |
2807 | * is. */ | |
2808 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2809 | ||
2810 | if (PL_restartop | |
2811 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2812 | { | |
312caa8e CS |
2813 | PL_op = PL_restartop; |
2814 | PL_restartop = 0; | |
2815 | goto redo_body; | |
2816 | } | |
2817 | /* FALL THROUGH */ | |
2818 | default: | |
14dd3ad8 | 2819 | JMPENV_POP; |
533c011a | 2820 | PL_op = oldop; |
6224f72b | 2821 | JMPENV_JUMP(ret); |
1e422769 | 2822 | /* NOTREACHED */ |
1e422769 | 2823 | } |
14dd3ad8 | 2824 | JMPENV_POP; |
533c011a | 2825 | PL_op = oldop; |
5f66b61c | 2826 | return NULL; |
1e422769 | 2827 | } |
2828 | ||
c277df42 | 2829 | OP * |
bfed75c6 | 2830 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2831 | /* sv Text to convert to OP tree. */ |
2832 | /* startop op_free() this to undo. */ | |
2833 | /* code Short string id of the caller. */ | |
2834 | { | |
f7997f86 | 2835 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2836 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2837 | PERL_CONTEXT *cx; |
2838 | SV **newsp; | |
b094c71d | 2839 | I32 gimme = G_VOID; |
c277df42 IZ |
2840 | I32 optype; |
2841 | OP dummy; | |
83ee9e09 GS |
2842 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2843 | char *tmpbuf = tbuf; | |
c277df42 | 2844 | char *safestr; |
a3985cdc | 2845 | int runtime; |
601f1833 | 2846 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2847 | STRLEN len; |
c277df42 | 2848 | |
7918f24d NC |
2849 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2850 | ||
c277df42 | 2851 | ENTER; |
5486870f | 2852 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2853 | SAVETMPS; |
2854 | /* switch to eval mode */ | |
2855 | ||
923e4eb5 | 2856 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2857 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2858 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2859 | } |
83ee9e09 | 2860 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2861 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2862 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2863 | code, (unsigned long)++PL_evalseq, | |
2864 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2865 | tmpbuf = SvPVX(sv); | |
fc009855 | 2866 | len = SvCUR(sv); |
83ee9e09 GS |
2867 | } |
2868 | else | |
d9fad198 JH |
2869 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2870 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2871 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2872 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2873 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2874 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2875 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2876 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2877 | (i.e. before run-time proper). To work around the coredump that | |
2878 | ensues, we always turn GvMULTI_on for any globals that were | |
2879 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2880 | safestr = savepvn(tmpbuf, len); |
2881 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2882 | SAVEHINTS(); |
d1ca3daa | 2883 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2884 | PL_opsave = op; |
d1ca3daa | 2885 | #else |
7766f137 | 2886 | SAVEVPTR(PL_op); |
d1ca3daa | 2887 | #endif |
c277df42 | 2888 | |
a3985cdc | 2889 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2890 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2891 | if (runtime) |
d819b83a | 2892 | runcv = find_runcv(NULL); |
a3985cdc | 2893 | |
533c011a | 2894 | PL_op = &dummy; |
13b51b79 | 2895 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2896 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2897 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 2898 | PUSHEVAL(cx, 0); |
a3985cdc DM |
2899 | |
2900 | if (runtime) | |
410be5db | 2901 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 2902 | else |
410be5db | 2903 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
13b51b79 | 2904 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2905 | POPEVAL(cx); |
c277df42 IZ |
2906 | |
2907 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2908 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2909 | lex_end(); |
f3548bdc | 2910 | /* XXX DAPM do this properly one year */ |
502c6561 | 2911 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
c277df42 | 2912 | LEAVE; |
923e4eb5 | 2913 | if (IN_PERL_COMPILETIME) |
623e6609 | 2914 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2915 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2916 | op = PL_opsave; |
d1ca3daa | 2917 | #endif |
9d4ba2ae AL |
2918 | PERL_UNUSED_VAR(newsp); |
2919 | PERL_UNUSED_VAR(optype); | |
2920 | ||
410be5db | 2921 | return PL_eval_start; |
c277df42 IZ |
2922 | } |
2923 | ||
a3985cdc DM |
2924 | |
2925 | /* | |
2926 | =for apidoc find_runcv | |
2927 | ||
2928 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2929 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2930 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2931 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2932 | than in the scope of the debugger itself). |
a3985cdc DM |
2933 | |
2934 | =cut | |
2935 | */ | |
2936 | ||
2937 | CV* | |
d819b83a | 2938 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2939 | { |
97aff369 | 2940 | dVAR; |
a3985cdc | 2941 | PERL_SI *si; |
a3985cdc | 2942 | |
d819b83a DM |
2943 | if (db_seqp) |
2944 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 2945 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 2946 | I32 ix; |
a3985cdc | 2947 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 2948 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 2949 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 2950 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
2951 | /* skip DB:: code */ |
2952 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
2953 | *db_seqp = cx->blk_oldcop->cop_seq; | |
2954 | continue; | |
2955 | } | |
2956 | return cv; | |
2957 | } | |
a3985cdc DM |
2958 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
2959 | return PL_compcv; | |
2960 | } | |
2961 | } | |
2962 | return PL_main_cv; | |
2963 | } | |
2964 | ||
2965 | ||
2966 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
2967 | * In the last case, startop is non-null, and contains the address of | |
2968 | * a pointer that should be set to the just-compiled code. | |
2969 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
2970 | * Returns a bool indicating whether the compile was successful; if so, |
2971 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
2972 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
2973 | */ |
2974 | ||
410be5db | 2975 | STATIC bool |
a3985cdc | 2976 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 2977 | { |
27da23d5 | 2978 | dVAR; dSP; |
46c461b5 | 2979 | OP * const saveop = PL_op; |
a0d0e21e | 2980 | |
6dc8a9e4 IZ |
2981 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
2982 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
2983 | : EVAL_INEVAL); | |
a0d0e21e | 2984 | |
1ce6579f | 2985 | PUSHMARK(SP); |
2986 | ||
3280af22 | 2987 | SAVESPTR(PL_compcv); |
ea726b52 | 2988 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 2989 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
2990 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
2991 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
2992 | ||
a3985cdc | 2993 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 2994 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 2995 | |
dd2155a4 | 2996 | /* set up a scratch pad */ |
a0d0e21e | 2997 | |
dd2155a4 | 2998 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 2999 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3000 | |
07055b4c | 3001 | |
81d86705 NC |
3002 | if (!PL_madskills) |
3003 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3004 | |
a0d0e21e LW |
3005 | /* make sure we compile in the right package */ |
3006 | ||
ed094faf | 3007 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3008 | SAVESPTR(PL_curstash); |
ed094faf | 3009 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3010 | } |
3c10abe3 | 3011 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3012 | SAVESPTR(PL_beginav); |
3013 | PL_beginav = newAV(); | |
3014 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3015 | SAVESPTR(PL_unitcheckav); |
3016 | PL_unitcheckav = newAV(); | |
3017 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3018 | |
81d86705 | 3019 | #ifdef PERL_MAD |
9da243ce | 3020 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3021 | PL_madskills = 0; |
3022 | #endif | |
3023 | ||
a0d0e21e LW |
3024 | /* try to compile it */ |
3025 | ||
5f66b61c | 3026 | PL_eval_root = NULL; |
3280af22 | 3027 | PL_curcop = &PL_compiling; |
fc15ae8f | 3028 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3029 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3030 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3031 | else |
3032 | CLEAR_ERRSV(); | |
13765c85 | 3033 | if (yyparse() || PL_parser->error_count || !PL_eval_root) { |
0c58d367 | 3034 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 3035 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 3036 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 3037 | const char *msg; |
bfed75c6 | 3038 | |
533c011a | 3039 | PL_op = saveop; |
3280af22 NIS |
3040 | if (PL_eval_root) { |
3041 | op_free(PL_eval_root); | |
5f66b61c | 3042 | PL_eval_root = NULL; |
a0d0e21e | 3043 | } |
3280af22 | 3044 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 3045 | if (!startop) { |
3280af22 | 3046 | POPBLOCK(cx,PL_curpm); |
c277df42 | 3047 | POPEVAL(cx); |
c277df42 | 3048 | } |
a0d0e21e | 3049 | lex_end(); |
f9bddea7 | 3050 | LEAVE; /* pp_entereval knows about this LEAVE. */ |
9d4ba2ae AL |
3051 | |
3052 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 3053 | if (optype == OP_REQUIRE) { |
b464bac0 | 3054 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 3055 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 3056 | &PL_sv_undef, 0); |
58d3fd3b SH |
3057 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3058 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3059 | } |
3060 | else if (startop) { | |
3280af22 | 3061 | POPBLOCK(cx,PL_curpm); |
c277df42 | 3062 | POPEVAL(cx); |
5a844595 GS |
3063 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3064 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3065 | } |
9d7f88dd | 3066 | else { |
9d7f88dd | 3067 | if (!*msg) { |
6502358f | 3068 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3069 | } |
3070 | } | |
9d4ba2ae | 3071 | PERL_UNUSED_VAR(newsp); |
410be5db DM |
3072 | PUSHs(&PL_sv_undef); |
3073 | PUTBACK; | |
3074 | return FALSE; | |
a0d0e21e | 3075 | } |
57843af0 | 3076 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3077 | if (startop) { |
3280af22 | 3078 | *startop = PL_eval_root; |
c277df42 | 3079 | } else |
3280af22 | 3080 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3081 | |
3082 | /* Set the context for this new optree. | |
3083 | * If the last op is an OP_REQUIRE, force scalar context. | |
3084 | * Otherwise, propagate the context from the eval(). */ | |
3085 | if (PL_eval_root->op_type == OP_LEAVEEVAL | |
3086 | && cUNOPx(PL_eval_root)->op_first->op_type == OP_LINESEQ | |
3087 | && cLISTOPx(cUNOPx(PL_eval_root)->op_first)->op_last->op_type | |
3088 | == OP_REQUIRE) | |
3089 | scalar(PL_eval_root); | |
7df0357e | 3090 | else if ((gimme & G_WANT) == G_VOID) |
3280af22 | 3091 | scalarvoid(PL_eval_root); |
7df0357e | 3092 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3093 | list(PL_eval_root); |
a0d0e21e | 3094 | else |
3280af22 | 3095 | scalar(PL_eval_root); |
a0d0e21e LW |
3096 | |
3097 | DEBUG_x(dump_eval()); | |
3098 | ||
55497cff | 3099 | /* Register with debugger: */ |
6482a30d | 3100 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3101 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3102 | if (cv) { |
3103 | dSP; | |
924508f0 | 3104 | PUSHMARK(SP); |
ad64d0ec | 3105 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3106 | PUTBACK; |
ad64d0ec | 3107 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3108 | } |
3109 | } | |
3110 | ||
3c10abe3 AG |
3111 | if (PL_unitcheckav) |
3112 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
3113 | ||
a0d0e21e LW |
3114 | /* compiled okay, so do it */ |
3115 | ||
3280af22 NIS |
3116 | CvDEPTH(PL_compcv) = 1; |
3117 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3118 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3119 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3120 | |
410be5db DM |
3121 | PUTBACK; |
3122 | return TRUE; | |
a0d0e21e LW |
3123 | } |
3124 | ||
a6c40364 | 3125 | STATIC PerlIO * |
0786552a | 3126 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3127 | { |
3128 | Stat_t st; | |
c445ea15 | 3129 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3130 | |
7918f24d NC |
3131 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3132 | ||
6b845e56 | 3133 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3134 | return NULL; |
ce8abf5f SP |
3135 | } |
3136 | ||
0786552a | 3137 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3138 | } |
3139 | ||
75c20bac | 3140 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3141 | STATIC PerlIO * |
0786552a | 3142 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3143 | { |
b295d113 TH |
3144 | PerlIO *fp; |
3145 | ||
7918f24d NC |
3146 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3147 | ||
ce9440c8 | 3148 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3149 | SV *const pmcsv = newSV(namelen + 2); |
3150 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3151 | Stat_t pmcstat; |
50b8ed39 NC |
3152 | |
3153 | memcpy(pmc, name, namelen); | |
3154 | pmc[namelen] = 'c'; | |
3155 | pmc[namelen + 1] = '\0'; | |
3156 | ||
a6c40364 | 3157 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3158 | fp = check_type_and_open(name); |
a6c40364 GS |
3159 | } |
3160 | else { | |
0786552a | 3161 | fp = check_type_and_open(pmc); |
b295d113 | 3162 | } |
a6c40364 GS |
3163 | SvREFCNT_dec(pmcsv); |
3164 | } | |
3165 | else { | |
0786552a | 3166 | fp = check_type_and_open(name); |
b295d113 | 3167 | } |
b295d113 | 3168 | return fp; |
75c20bac | 3169 | } |
7925835c | 3170 | #else |
75c20bac | 3171 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3172 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3173 | |
a0d0e21e LW |
3174 | PP(pp_require) |
3175 | { | |
27da23d5 | 3176 | dVAR; dSP; |
c09156bb | 3177 | register PERL_CONTEXT *cx; |
a0d0e21e | 3178 | SV *sv; |
5c144d81 | 3179 | const char *name; |
6132ea6c | 3180 | STRLEN len; |
4492be7a JM |
3181 | char * unixname; |
3182 | STRLEN unixlen; | |
62f5ad7a | 3183 | #ifdef VMS |
4492be7a | 3184 | int vms_unixname = 0; |
62f5ad7a | 3185 | #endif |
c445ea15 AL |
3186 | const char *tryname = NULL; |
3187 | SV *namesv = NULL; | |
f54cb97a | 3188 | const I32 gimme = GIMME_V; |
bbed91b5 | 3189 | int filter_has_file = 0; |
c445ea15 | 3190 | PerlIO *tryrsfp = NULL; |
34113e50 | 3191 | SV *filter_cache = NULL; |
c445ea15 AL |
3192 | SV *filter_state = NULL; |
3193 | SV *filter_sub = NULL; | |
3194 | SV *hook_sv = NULL; | |
6ec9efec JH |
3195 | SV *encoding; |
3196 | OP *op; | |
a0d0e21e LW |
3197 | |
3198 | sv = POPs; | |
d7aa5382 | 3199 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3200 | sv = new_version(sv); |
3201 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3202 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3203 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3204 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3205 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3206 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3207 | } |
3208 | else { | |
d1029faa JP |
3209 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3210 | I32 first = 0; | |
3211 | AV *lav; | |
3212 | SV * const req = SvRV(sv); | |
85fbaab2 | 3213 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3214 | |
3215 | /* get the left hand term */ | |
502c6561 | 3216 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3217 | |
3218 | first = SvIV(*av_fetch(lav,0,0)); | |
3219 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3220 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3221 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3222 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3223 | ) { | |
3224 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3225 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3226 | SVfARG(vnormal(PL_patchlevel))); | |
3227 | } | |
3228 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
3229 | SV * hintsv = newSV(0); | |
3230 | I32 second = 0; | |
3231 | ||
3232 | if (av_len(lav)>=1) | |
3233 | second = SvIV(*av_fetch(lav,1,0)); | |
3234 | ||
3235 | second /= second >= 600 ? 100 : 10; | |
3236 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.%d", | |
3237 | (int)first, (int)second,0); | |
3238 | upg_version(hintsv, TRUE); | |
3239 | ||
3240 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3241 | "--this is only %"SVf", stopped", | |
3242 | SVfARG(vnormal(req)), | |
3243 | SVfARG(vnormal(hintsv)), | |
3244 | SVfARG(vnormal(PL_patchlevel))); | |
3245 | } | |
3246 | } | |
468aa647 | 3247 | } |
d7aa5382 | 3248 | |
fbc891ce RB |
3249 | /* We do this only with use, not require. */ |
3250 | if (PL_compcv && | |
fbc891ce RB |
3251 | /* If we request a version >= 5.9.5, load feature.pm with the |
3252 | * feature bundle that corresponds to the required version. */ | |
2e8342de | 3253 | vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { |
7dfde25d RGS |
3254 | SV *const importsv = vnormal(sv); |
3255 | *SvPVX_mutable(importsv) = ':'; | |
3256 | ENTER; | |
3257 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); | |
3258 | LEAVE; | |
3259 | } | |
3260 | ||
3261 | RETPUSHYES; | |
a0d0e21e | 3262 | } |
5c144d81 | 3263 | name = SvPV_const(sv, len); |
6132ea6c | 3264 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3265 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3266 | TAINT_PROPER("require"); |
4492be7a JM |
3267 | |
3268 | ||
3269 | #ifdef VMS | |
3270 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3271 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3272 | * can result in a module being pulled in more than once. | |
3273 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3274 | * name can be translated to UNIX. | |
3275 | */ | |
3276 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3277 | unixlen = strlen(unixname); | |
3278 | vms_unixname = 1; | |
3279 | } | |
3280 | else | |
3281 | #endif | |
3282 | { | |
3283 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3284 | * through. | |
3285 | */ | |
3286 | unixname = (char *) name; | |
3287 | unixlen = len; | |
3288 | } | |
44f8325f | 3289 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3290 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3291 | unixname, unixlen, 0); | |
44f8325f AL |
3292 | if ( svp ) { |
3293 | if (*svp != &PL_sv_undef) | |
3294 | RETPUSHYES; | |
3295 | else | |
087b5369 RD |
3296 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3297 | "Compilation failed in require", unixname); | |
44f8325f | 3298 | } |
4d8b06f1 | 3299 | } |
a0d0e21e LW |
3300 | |
3301 | /* prepare to compile file */ | |
3302 | ||
be4b629d | 3303 | if (path_is_absolute(name)) { |
46fc3d4c | 3304 | tryname = name; |
0786552a | 3305 | tryrsfp = doopen_pm(name, len); |
bf4acbe4 | 3306 | } |
67627c52 JH |
3307 | #ifdef MACOS_TRADITIONAL |
3308 | if (!tryrsfp) { | |
3309 | char newname[256]; | |
3310 | ||
3311 | MacPerl_CanonDir(name, newname, 1); | |
3312 | if (path_is_absolute(newname)) { | |
3313 | tryname = newname; | |
0786552a | 3314 | tryrsfp = doopen_pm(newname, strlen(newname)); |
67627c52 JH |
3315 | } |
3316 | } | |
3317 | #endif | |
be4b629d | 3318 | if (!tryrsfp) { |
44f8325f | 3319 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3320 | I32 i; |
748a9306 | 3321 | #ifdef VMS |
4492be7a | 3322 | if (vms_unixname) |
46fc3d4c | 3323 | #endif |
3324 | { | |
d0328fd7 | 3325 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3326 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3327 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3328 | |
ad64d0ec | 3329 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3330 | mg_get(dirsv); |
bbed91b5 KF |
3331 | if (SvROK(dirsv)) { |
3332 | int count; | |
a3b58a99 | 3333 | SV **svp; |
bbed91b5 KF |
3334 | SV *loader = dirsv; |
3335 | ||
e14e2dc8 NC |
3336 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3337 | && !sv_isobject(loader)) | |
3338 | { | |
502c6561 | 3339 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3340 | } |
3341 | ||
b900a521 | 3342 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3343 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3344 | tryname = SvPVX_const(namesv); |
c445ea15 | 3345 | tryrsfp = NULL; |
bbed91b5 KF |
3346 | |
3347 | ENTER; | |
3348 | SAVETMPS; | |
3349 | EXTEND(SP, 2); | |
3350 | ||
3351 | PUSHMARK(SP); | |
3352 | PUSHs(dirsv); | |
3353 | PUSHs(sv); | |
3354 | PUTBACK; | |
e982885c NC |
3355 | if (sv_isobject(loader)) |
3356 | count = call_method("INC", G_ARRAY); | |
3357 | else | |
3358 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3359 | SPAGAIN; |
3360 | ||
a3b58a99 RGS |
3361 | /* Adjust file name if the hook has set an %INC entry */ |
3362 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3363 | if (svp) | |
3364 | tryname = SvPVX_const(*svp); | |
3365 | ||
bbed91b5 KF |
3366 | if (count > 0) { |
3367 | int i = 0; | |
3368 | SV *arg; | |
3369 | ||
3370 | SP -= count - 1; | |
3371 | arg = SP[i++]; | |
3372 | ||
34113e50 NC |
3373 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3374 | && !isGV_with_GP(SvRV(arg))) { | |
3375 | filter_cache = SvRV(arg); | |
74c765eb | 3376 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3377 | |
3378 | if (i < count) { | |
3379 | arg = SP[i++]; | |
3380 | } | |
3381 | } | |
3382 | ||
6e592b3a | 3383 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3384 | arg = SvRV(arg); |
3385 | } | |
3386 | ||
6e592b3a | 3387 | if (isGV_with_GP(arg)) { |
159b6efe | 3388 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3389 | |
3390 | ++filter_has_file; | |
3391 | ||
3392 | if (io) { | |
3393 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3394 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3395 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3396 | } |
0f7de14d NC |
3397 | IoIFP(io) = NULL; |
3398 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3399 | } |
3400 | ||
3401 | if (i < count) { | |
3402 | arg = SP[i++]; | |
3403 | } | |
3404 | } | |
3405 | ||
3406 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3407 | filter_sub = arg; | |
74c765eb | 3408 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3409 | |
3410 | if (i < count) { | |
3411 | filter_state = SP[i]; | |
b37c2d43 | 3412 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3413 | } |
34113e50 | 3414 | } |
bbed91b5 | 3415 | |
34113e50 NC |
3416 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3417 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3418 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3419 | } |
1d06aecd | 3420 | SP--; |
bbed91b5 KF |
3421 | } |
3422 | ||
3423 | PUTBACK; | |
3424 | FREETMPS; | |
3425 | LEAVE; | |
3426 | ||
3427 | if (tryrsfp) { | |
89ccab8c | 3428 | hook_sv = dirsv; |
bbed91b5 KF |
3429 | break; |
3430 | } | |
3431 | ||
3432 | filter_has_file = 0; | |
34113e50 NC |
3433 | if (filter_cache) { |
3434 | SvREFCNT_dec(filter_cache); | |
3435 | filter_cache = NULL; | |
3436 | } | |
bbed91b5 KF |
3437 | if (filter_state) { |
3438 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3439 | filter_state = NULL; |
bbed91b5 KF |
3440 | } |
3441 | if (filter_sub) { | |
3442 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3443 | filter_sub = NULL; |
bbed91b5 KF |
3444 | } |
3445 | } | |
3446 | else { | |
be4b629d CN |
3447 | if (!path_is_absolute(name) |
3448 | #ifdef MACOS_TRADITIONAL | |
3449 | /* We consider paths of the form :a:b ambiguous and interpret them first | |
3450 | as global then as local | |
3451 | */ | |
3452 | || (*name == ':' && name[1] != ':' && strchr(name+2, ':')) | |
3453 | #endif | |
3454 | ) { | |
b640a14a NC |
3455 | const char *dir; |
3456 | STRLEN dirlen; | |
3457 | ||
3458 | if (SvOK(dirsv)) { | |
3459 | dir = SvPV_const(dirsv, dirlen); | |
3460 | } else { | |
3461 | dir = ""; | |
3462 | dirlen = 0; | |
3463 | } | |
3464 | ||
bf4acbe4 | 3465 | #ifdef MACOS_TRADITIONAL |
67627c52 JH |
3466 | char buf1[256]; |
3467 | char buf2[256]; | |
3468 | ||
3469 | MacPerl_CanonDir(name, buf2, 1); | |
3470 | Perl_sv_setpvf(aTHX_ namesv, "%s%s", MacPerl_CanonDir(dir, buf1, 0), buf2+(buf2[0] == ':')); | |
bf4acbe4 | 3471 | #else |
27da23d5 | 3472 | # ifdef VMS |
bbed91b5 | 3473 | char *unixdir; |
c445ea15 | 3474 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3475 | continue; |
3476 | sv_setpv(namesv, unixdir); | |
3477 | sv_catpv(namesv, unixname); | |
27da23d5 | 3478 | # else |
a0fd4948 | 3479 | # ifdef __SYMBIAN32__ |
27da23d5 JH |
3480 | if (PL_origfilename[0] && |
3481 | PL_origfilename[1] == ':' && | |
3482 | !(dir[0] && dir[1] == ':')) | |
3483 | Perl_sv_setpvf(aTHX_ namesv, | |
3484 | "%c:%s\\%s", | |
3485 | PL_origfilename[0], | |
3486 | dir, name); | |
3487 | else | |
3488 | Perl_sv_setpvf(aTHX_ namesv, | |
3489 | "%s\\%s", | |
3490 | dir, name); | |
3491 | # else | |
b640a14a NC |
3492 | /* The equivalent of |
3493 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3494 | but without the need to parse the format string, or | |
3495 | call strlen on either pointer, and with the correct | |
3496 | allocation up front. */ | |
3497 | { | |
3498 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3499 | ||
3500 | memcpy(tmp, dir, dirlen); | |
3501 | tmp +=dirlen; | |
3502 | *tmp++ = '/'; | |
3503 | /* name came from an SV, so it will have a '\0' at the | |
3504 | end that we can copy as part of this memcpy(). */ | |
3505 | memcpy(tmp, name, len + 1); | |
3506 | ||
3507 | SvCUR_set(namesv, dirlen + len + 1); | |
3508 | ||
3509 | /* Don't even actually have to turn SvPOK_on() as we | |
3510 | access it directly with SvPVX() below. */ | |
3511 | } | |
27da23d5 JH |
3512 | # endif |
3513 | # endif | |
bf4acbe4 | 3514 | #endif |
bbed91b5 | 3515 | TAINT_PROPER("require"); |
349d4f2f | 3516 | tryname = SvPVX_const(namesv); |
0786552a | 3517 | tryrsfp = doopen_pm(tryname, SvCUR(namesv)); |
bbed91b5 KF |
3518 | if (tryrsfp) { |
3519 | if (tryname[0] == '.' && tryname[1] == '/') | |
3520 | tryname += 2; | |
3521 | break; | |
3522 | } | |
ff806af2 DM |
3523 | else if (errno == EMFILE) |
3524 | /* no point in trying other paths if out of handles */ | |
3525 | break; | |
be4b629d | 3526 | } |
46fc3d4c | 3527 | } |
a0d0e21e LW |
3528 | } |
3529 | } | |
3530 | } | |
f4dd75d9 | 3531 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3532 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3533 | SvREFCNT_dec(namesv); |
a0d0e21e | 3534 | if (!tryrsfp) { |
533c011a | 3535 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3536 | const char *msgstr = name; |
e31de809 | 3537 | if(errno == EMFILE) { |
b9b739dc NC |
3538 | SV * const msg |
3539 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3540 | Strerror(errno))); | |
349d4f2f | 3541 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3542 | } else { |
3543 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3544 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3545 | I32 i; |
b8f04b1b NC |
3546 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3547 | "%s in @INC%s%s (@INC contains:", | |
3548 | msgstr, | |
3549 | (instr(msgstr, ".h ") | |
3550 | ? " (change .h to .ph maybe?)" : ""), | |
3551 | (instr(msgstr, ".ph ") | |
3552 | ? " (did you run h2ph?)" : "") | |
3553 | )); | |
3554 | ||
e31de809 | 3555 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3556 | sv_catpvs(msg, " "); |
b8f04b1b | 3557 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3558 | } |
396482e1 | 3559 | sv_catpvs(msg, ")"); |
e31de809 SP |
3560 | msgstr = SvPV_nolen_const(msg); |
3561 | } | |
2683423c | 3562 | } |
ea071790 | 3563 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3564 | } |
3565 | ||
3566 | RETPUSHUNDEF; | |
3567 | } | |
d8bfb8bd | 3568 | else |
93189314 | 3569 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3570 | |
3571 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3572 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3573 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3574 | if (!hook_sv) { |
4492be7a JM |
3575 | (void)hv_store(GvHVn(PL_incgv), |
3576 | unixname, unixlen, newSVpv(CopFILE(&PL_compiling),0),0); | |
44f8325f | 3577 | } else { |
4492be7a | 3578 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3579 | if (!svp) |
4492be7a JM |
3580 | (void)hv_store(GvHVn(PL_incgv), |
3581 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3582 | } |
a0d0e21e LW |
3583 | |
3584 | ENTER; | |
3585 | SAVETMPS; | |
5486870f | 3586 | lex_start(NULL, tryrsfp, TRUE); |
e50aee73 | 3587 | |
b3ac6de7 | 3588 | SAVEHINTS(); |
3280af22 | 3589 | PL_hints = 0; |
50a25f5b RGS |
3590 | if (PL_compiling.cop_hints_hash) { |
3591 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
3592 | PL_compiling.cop_hints_hash = NULL; | |
3593 | } | |
27eaf14c | 3594 | |
68da3b2f | 3595 | SAVECOMPILEWARNINGS(); |
0453d815 | 3596 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3597 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3598 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3599 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3600 | else |
d3a7d8c7 | 3601 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3602 | |
34113e50 | 3603 | if (filter_sub || filter_cache) { |
c445ea15 | 3604 | SV * const datasv = filter_add(S_run_user_filter, NULL); |
bbed91b5 | 3605 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3606 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3607 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
3608 | IoFMT_GV(datasv) = MUTABLE_GV(filter_cache); | |
bbed91b5 KF |
3609 | } |
3610 | ||
3611 | /* switch to eval mode */ | |
a0d0e21e | 3612 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3613 | PUSHEVAL(cx, name); |
f39bc417 | 3614 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3615 | |
57843af0 GS |
3616 | SAVECOPLINE(&PL_compiling); |
3617 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3618 | |
3619 | PUTBACK; | |
6ec9efec JH |
3620 | |
3621 | /* Store and reset encoding. */ | |
3622 | encoding = PL_encoding; | |
c445ea15 | 3623 | PL_encoding = NULL; |
6ec9efec | 3624 | |
410be5db DM |
3625 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3626 | op = DOCATCH(PL_eval_start); | |
3627 | else | |
3628 | op = PL_op->op_next; | |
bfed75c6 | 3629 | |
6ec9efec JH |
3630 | /* Restore encoding. */ |
3631 | PL_encoding = encoding; | |
3632 | ||
3633 | return op; | |
a0d0e21e LW |
3634 | } |
3635 | ||
996c9baa VP |
3636 | /* This is a op added to hold the hints hash for |
3637 | pp_entereval. The hash can be modified by the code | |
3638 | being eval'ed, so we return a copy instead. */ | |
3639 | ||
3640 | PP(pp_hintseval) | |
3641 | { | |
3642 | dVAR; | |
3643 | dSP; | |
ad64d0ec | 3644 | mXPUSHs(MUTABLE_SV(Perl_hv_copy_hints_hv(aTHX_ MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
3645 | RETURN; |
3646 | } | |
3647 | ||
3648 | ||
a0d0e21e LW |
3649 | PP(pp_entereval) |
3650 | { | |
27da23d5 | 3651 | dVAR; dSP; |
c09156bb | 3652 | register PERL_CONTEXT *cx; |
0d863452 | 3653 | SV *sv; |
890ce7af | 3654 | const I32 gimme = GIMME_V; |
fd06b02c | 3655 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 GS |
3656 | char tbuf[TYPE_DIGITS(long) + 12]; |
3657 | char *tmpbuf = tbuf; | |
a0d0e21e | 3658 | STRLEN len; |
a3985cdc | 3659 | CV* runcv; |
d819b83a | 3660 | U32 seq; |
c445ea15 | 3661 | HV *saved_hh = NULL; |
e389bba9 | 3662 | |
0d863452 | 3663 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 3664 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
3665 | } |
3666 | sv = POPs; | |
a0d0e21e | 3667 | |
af2d3def | 3668 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3669 | TAINT_PROPER("eval"); |
a0d0e21e LW |
3670 | |
3671 | ENTER; | |
5486870f | 3672 | lex_start(sv, NULL, FALSE); |
748a9306 | 3673 | SAVETMPS; |
ac27b0f5 | 3674 | |
a0d0e21e LW |
3675 | /* switch to eval mode */ |
3676 | ||
83ee9e09 | 3677 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3678 | SV * const temp_sv = sv_newmortal(); |
3679 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3680 | (unsigned long)++PL_evalseq, |
3681 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3682 | tmpbuf = SvPVX(temp_sv); |
3683 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3684 | } |
3685 | else | |
d9fad198 | 3686 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3687 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3688 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3689 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3690 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3691 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3692 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3693 | (i.e. before run-time proper). To work around the coredump that | |
3694 | ensues, we always turn GvMULTI_on for any globals that were | |
3695 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 3696 | SAVEHINTS(); |
533c011a | 3697 | PL_hints = PL_op->op_targ; |
0d863452 RH |
3698 | if (saved_hh) |
3699 | GvHV(PL_hintgv) = saved_hh; | |
68da3b2f | 3700 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3701 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3702 | if (PL_compiling.cop_hints_hash) { |
3703 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3704 | } |
c28fe1ec NC |
3705 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; |
3706 | if (PL_compiling.cop_hints_hash) { | |
cbb1fbea | 3707 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3708 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3709 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3710 | } |
d819b83a DM |
3711 | /* special case: an eval '' executed within the DB package gets lexically |
3712 | * placed in the first non-DB CV rather than the current CV - this | |
3713 | * allows the debugger to execute code, find lexicals etc, in the | |
3714 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3715 | * to do the dirty work for us */ | |
3716 | runcv = find_runcv(&seq); | |
a0d0e21e | 3717 | |
6b35e009 | 3718 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 3719 | PUSHEVAL(cx, 0); |
f39bc417 | 3720 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3721 | |
3722 | /* prepare to compile string */ | |
3723 | ||
a44e3ce2 | 3724 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 3725 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
a0d0e21e | 3726 | PUTBACK; |
f9bddea7 NC |
3727 | |
3728 | if (doeval(gimme, NULL, runcv, seq)) { | |
3729 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
3730 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3731 | : PERLDB_SAVESRC_NOSUBS) { | |
3732 | /* Retain the filegv we created. */ | |
3733 | } else { | |
3734 | char *const safestr = savepvn(tmpbuf, len); | |
3735 | SAVEDELETE(PL_defstash, safestr, len); | |
3736 | } | |
3737 | return DOCATCH(PL_eval_start); | |
3738 | } else { | |
3739 | /* We have already left the scope set up earler thanks to the LEAVE | |
3740 | in doeval(). */ | |
eb044b10 NC |
3741 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
3742 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3743 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 NC |
3744 | /* Retain the filegv we created. */ |
3745 | } else { | |
3746 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); | |
3747 | } | |
3748 | return PL_op->op_next; | |
3749 | } | |
a0d0e21e LW |
3750 | } |
3751 | ||
3752 | PP(pp_leaveeval) | |
3753 | { | |
27da23d5 | 3754 | dVAR; dSP; |
a0d0e21e LW |
3755 | register SV **mark; |
3756 | SV **newsp; | |
3757 | PMOP *newpm; | |
3758 | I32 gimme; | |
c09156bb | 3759 | register PERL_CONTEXT *cx; |
a0d0e21e | 3760 | OP *retop; |
06b5626a | 3761 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3762 | I32 optype; |
3763 | ||
3764 | POPBLOCK(cx,newpm); | |
3765 | POPEVAL(cx); | |
f39bc417 | 3766 | retop = cx->blk_eval.retop; |
a0d0e21e | 3767 | |
a1f49e72 | 3768 | TAINT_NOT; |
54310121 | 3769 | if (gimme == G_VOID) |
3770 | MARK = newsp; | |
3771 | else if (gimme == G_SCALAR) { | |
3772 | MARK = newsp + 1; | |
3773 | if (MARK <= SP) { | |
3774 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3775 | *MARK = TOPs; | |
3776 | else | |
3777 | *MARK = sv_mortalcopy(TOPs); | |
3778 | } | |
a0d0e21e | 3779 | else { |
54310121 | 3780 | MEXTEND(mark,0); |
3280af22 | 3781 | *MARK = &PL_sv_undef; |
a0d0e21e | 3782 | } |
a7ec2b44 | 3783 | SP = MARK; |
a0d0e21e LW |
3784 | } |
3785 | else { | |
a1f49e72 CS |
3786 | /* in case LEAVE wipes old return values */ |
3787 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3788 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3789 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3790 | TAINT_NOT; /* Each item is independent */ |
3791 | } | |
3792 | } | |
a0d0e21e | 3793 | } |
3280af22 | 3794 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3795 | |
4fdae800 | 3796 | #ifdef DEBUGGING |
3280af22 | 3797 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3798 | #endif |
3280af22 | 3799 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3800 | lex_end(); |
4fdae800 | 3801 | |
1ce6579f | 3802 | if (optype == OP_REQUIRE && |
924508f0 | 3803 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3804 | { |
1ce6579f | 3805 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3806 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3807 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 3808 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
f46d017c GS |
3809 | /* die_where() did LEAVE, or we won't be here */ |
3810 | } | |
3811 | else { | |
3812 | LEAVE; | |
8433848b | 3813 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 3814 | CLEAR_ERRSV(); |
8433848b | 3815 | } |
a0d0e21e | 3816 | } |
a0d0e21e LW |
3817 | |
3818 | RETURNOP(retop); | |
3819 | } | |
3820 | ||
edb2152a NC |
3821 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3822 | close to the related Perl_create_eval_scope. */ | |
3823 | void | |
3824 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3825 | { |
edb2152a NC |
3826 | SV **newsp; |
3827 | PMOP *newpm; | |
3828 | I32 gimme; | |
c09156bb | 3829 | register PERL_CONTEXT *cx; |
edb2152a NC |
3830 | I32 optype; |
3831 | ||
3832 | POPBLOCK(cx,newpm); | |
3833 | POPEVAL(cx); | |
3834 | PL_curpm = newpm; | |
3835 | LEAVE; | |
3836 | PERL_UNUSED_VAR(newsp); | |
3837 | PERL_UNUSED_VAR(gimme); | |
3838 | PERL_UNUSED_VAR(optype); | |
3839 | } | |
a0d0e21e | 3840 | |
edb2152a NC |
3841 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3842 | also needed by Perl_fold_constants. */ | |
3843 | PERL_CONTEXT * | |
3844 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3845 | { | |
3846 | PERL_CONTEXT *cx; | |
3847 | const I32 gimme = GIMME_V; | |
3848 | ||
a0d0e21e LW |
3849 | ENTER; |
3850 | SAVETMPS; | |
3851 | ||
edb2152a | 3852 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 3853 | PUSHEVAL(cx, 0); |
a0d0e21e | 3854 | |
faef0170 | 3855 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3856 | if (flags & G_KEEPERR) |
3857 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
3858 | else |
3859 | CLEAR_ERRSV(); | |
edb2152a NC |
3860 | if (flags & G_FAKINGEVAL) { |
3861 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3862 | } | |
3863 | return cx; | |
3864 | } | |
3865 | ||
3866 | PP(pp_entertry) | |
3867 | { | |
3868 | dVAR; | |
df528165 | 3869 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 3870 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 3871 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3872 | } |
3873 | ||
3874 | PP(pp_leavetry) | |
3875 | { | |
27da23d5 | 3876 | dVAR; dSP; |
a0d0e21e LW |
3877 | SV **newsp; |
3878 | PMOP *newpm; | |
3879 | I32 gimme; | |
c09156bb | 3880 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3881 | I32 optype; |
3882 | ||
3883 | POPBLOCK(cx,newpm); | |
3884 | POPEVAL(cx); | |
9d4ba2ae | 3885 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3886 | |
a1f49e72 | 3887 | TAINT_NOT; |
54310121 | 3888 | if (gimme == G_VOID) |
3889 | SP = newsp; | |
3890 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3891 | register SV **mark; |
54310121 | 3892 | MARK = newsp + 1; |
3893 | if (MARK <= SP) { | |
3894 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3895 | *MARK = TOPs; | |
3896 | else | |
3897 | *MARK = sv_mortalcopy(TOPs); | |
3898 | } | |
a0d0e21e | 3899 | else { |
54310121 | 3900 | MEXTEND(mark,0); |
3280af22 | 3901 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3902 | } |
3903 | SP = MARK; | |
3904 | } | |
3905 | else { | |
a1f49e72 | 3906 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3907 | register SV **mark; |
a1f49e72 CS |
3908 | for (mark = newsp + 1; mark <= SP; mark++) { |
3909 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3910 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3911 | TAINT_NOT; /* Each item is independent */ |
3912 | } | |
3913 | } | |
a0d0e21e | 3914 | } |
3280af22 | 3915 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
3916 | |
3917 | LEAVE; | |
ab69dbc2 | 3918 | CLEAR_ERRSV(); |
745cf2ff | 3919 | RETURN; |
a0d0e21e LW |
3920 | } |
3921 | ||
0d863452 RH |
3922 | PP(pp_entergiven) |
3923 | { | |
3924 | dVAR; dSP; | |
3925 | register PERL_CONTEXT *cx; | |
3926 | const I32 gimme = GIMME_V; | |
3927 | ||
3928 | ENTER; | |
3929 | SAVETMPS; | |
3930 | ||
3931 | if (PL_op->op_targ == 0) { | |
c445ea15 | 3932 | SV ** const defsv_p = &GvSV(PL_defgv); |
0d863452 RH |
3933 | *defsv_p = newSVsv(POPs); |
3934 | SAVECLEARSV(*defsv_p); | |
3935 | } | |
3936 | else | |
3937 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); | |
3938 | ||
3939 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3940 | PUSHGIVEN(cx); | |
3941 | ||
3942 | RETURN; | |
3943 | } | |
3944 | ||
3945 | PP(pp_leavegiven) | |
3946 | { | |
3947 | dVAR; dSP; | |
3948 | register PERL_CONTEXT *cx; | |
3949 | I32 gimme; | |
3950 | SV **newsp; | |
3951 | PMOP *newpm; | |
96a5add6 | 3952 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3953 | |
3954 | POPBLOCK(cx,newpm); | |
3955 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3956 | |
3957 | SP = newsp; | |
3958 | PUTBACK; | |
3959 | ||
3960 | PL_curpm = newpm; /* pop $1 et al */ | |
3961 | ||
3962 | LEAVE; | |
3963 | ||
3964 | return NORMAL; | |
3965 | } | |
3966 | ||
3967 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 3968 | STATIC PMOP * |
84679df5 | 3969 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 3970 | { |
97aff369 | 3971 | dVAR; |
0d863452 | 3972 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
3973 | |
3974 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
3975 | ||
d6106309 | 3976 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 3977 | |
0d863452 RH |
3978 | SAVEFREEOP((OP *) matcher); |
3979 | ENTER; SAVETMPS; | |
3980 | SAVEOP(); | |
3981 | return matcher; | |
3982 | } | |
3983 | ||
4136a0f7 | 3984 | STATIC bool |
0d863452 RH |
3985 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
3986 | { | |
97aff369 | 3987 | dVAR; |
0d863452 | 3988 | dSP; |
7918f24d NC |
3989 | |
3990 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
3991 | |
3992 | PL_op = (OP *) matcher; | |
3993 | XPUSHs(sv); | |
3994 | PUTBACK; | |
3995 | (void) pp_match(); | |
3996 | SPAGAIN; | |
3997 | return (SvTRUEx(POPs)); | |
3998 | } | |
3999 | ||
4136a0f7 | 4000 | STATIC void |
0d863452 RH |
4001 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4002 | { | |
97aff369 | 4003 | dVAR; |
7918f24d NC |
4004 | |
4005 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4006 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4007 | |
0d863452 RH |
4008 | FREETMPS; |
4009 | LEAVE; | |
4010 | } | |
4011 | ||
4012 | /* Do a smart match */ | |
4013 | PP(pp_smartmatch) | |
4014 | { | |
a0714e2c | 4015 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4016 | } |
4017 | ||
4b021f5f RGS |
4018 | /* This version of do_smartmatch() implements the |
4019 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4020 | */ |
4136a0f7 | 4021 | STATIC OP * |
0d863452 RH |
4022 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4023 | { | |
97aff369 | 4024 | dVAR; |
0d863452 RH |
4025 | dSP; |
4026 | ||
4027 | SV *e = TOPs; /* e is for 'expression' */ | |
4028 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
10edeb5d | 4029 | SV *This, *Other; /* 'This' (and Other to match) to play with C++ */ |
84679df5 | 4030 | REGEXP *this_regex, *other_regex; |
0d863452 RH |
4031 | |
4032 | # define NOT_EMPTY_PROTO(cv) (!SvPOK(cv) || SvCUR(cv) == 0) | |
4033 | ||
4034 | # define SM_REF(type) ( \ | |
10edeb5d JH |
4035 | (SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_##type) && (Other = e)) \ |
4036 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_##type) && (Other = d))) | |
0d863452 RH |
4037 | |
4038 | # define SM_CV_NEP /* Find a code ref without an empty prototype */ \ | |
10edeb5d JH |
4039 | ((SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_PVCV) \ |
4040 | && NOT_EMPTY_PROTO(This) && (Other = e)) \ | |
4041 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_PVCV) \ | |
4042 | && NOT_EMPTY_PROTO(This) && (Other = d))) | |
0d863452 RH |
4043 | |
4044 | # define SM_REGEX ( \ | |
5c35adbb | 4045 | (SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_REGEXP) \ |
d2f13c59 | 4046 | && (this_regex = (REGEXP*) This) \ |
10edeb5d | 4047 | && (Other = e)) \ |
0d863452 | 4048 | || \ |
5c35adbb | 4049 | (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_REGEXP) \ |
d2f13c59 | 4050 | && (this_regex = (REGEXP*) This) \ |
10edeb5d | 4051 | && (Other = d)) ) |
0d863452 RH |
4052 | |
4053 | ||
e67b97bd VP |
4054 | # define SM_OBJECT ( \ |
4055 | (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) \ | |
4056 | || \ | |
4057 | (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) ) \ | |
4058 | ||
0d863452 | 4059 | # define SM_OTHER_REF(type) \ |
10edeb5d | 4060 | (SvROK(Other) && SvTYPE(SvRV(Other)) == SVt_##type) |
0d863452 | 4061 | |
5c35adbb NC |
4062 | # define SM_OTHER_REGEX (SvROK(Other) \ |
4063 | && (SvTYPE(SvRV(Other)) == SVt_REGEXP) \ | |
d2f13c59 | 4064 | && (other_regex = (REGEXP*) SvRV(Other))) |
5c35adbb | 4065 | |
0d863452 RH |
4066 | |
4067 | # define SM_SEEN_THIS(sv) hv_exists_ent(seen_this, \ | |
98f4023c | 4068 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
4069 | |
4070 | # define SM_SEEN_OTHER(sv) hv_exists_ent(seen_other, \ | |
98f4023c | 4071 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
4072 | |
4073 | tryAMAGICbinSET(smart, 0); | |
4074 | ||
4075 | SP -= 2; /* Pop the values */ | |
4076 | ||
4077 | /* Take care only to invoke mg_get() once for each argument. | |
4078 | * Currently we do this by copying the SV if it's magical. */ | |
4079 | if (d) { | |
4080 | if (SvGMAGICAL(d)) | |
4081 | d = sv_mortalcopy(d); | |
4082 | } | |
4083 | else | |
4084 | d = &PL_sv_undef; | |
4085 | ||
4086 | assert(e); | |
4087 | if (SvGMAGICAL(e)) | |
4088 | e = sv_mortalcopy(e); | |
4089 | ||
33570f8b RGS |
4090 | if (SM_OBJECT) { |
4091 | if (!SvOK(d) || !SvOK(e)) | |
4092 | RETPUSHNO; | |
4093 | else | |
4094 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); | |
4095 | } | |
e67b97bd | 4096 | |
0d863452 RH |
4097 | if (SM_CV_NEP) { |
4098 | I32 c; | |
4099 | ||
10edeb5d | 4100 | if ( SM_OTHER_REF(PVCV) && NOT_EMPTY_PROTO(SvRV(Other)) ) |
0d863452 | 4101 | { |
10edeb5d | 4102 | if (This == SvRV(Other)) |
0d863452 RH |
4103 | RETPUSHYES; |
4104 | else | |
4105 | RETPUSHNO; | |
4106 | } | |
4107 | ||
4108 | ENTER; | |
4109 | SAVETMPS; | |
4110 | PUSHMARK(SP); | |
10edeb5d | 4111 | PUSHs(Other); |
0d863452 | 4112 | PUTBACK; |
10edeb5d | 4113 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
4114 | SPAGAIN; |
4115 | if (c == 0) | |
4116 | PUSHs(&PL_sv_no); | |
4117 | else if (SvTEMP(TOPs)) | |
df528165 | 4118 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4119 | FREETMPS; |
4120 | LEAVE; | |
4121 | RETURN; | |
4122 | } | |
4123 | else if (SM_REF(PVHV)) { | |
4124 | if (SM_OTHER_REF(PVHV)) { | |
4125 | /* Check that the key-sets are identical */ | |
4126 | HE *he; | |
85fbaab2 | 4127 | HV *other_hv = MUTABLE_HV(SvRV(Other)); |
0d863452 RH |
4128 | bool tied = FALSE; |
4129 | bool other_tied = FALSE; | |
4130 | U32 this_key_count = 0, | |
4131 | other_key_count = 0; | |
4132 | ||
4133 | /* Tied hashes don't know how many keys they have. */ | |
10edeb5d | 4134 | if (SvTIED_mg(This, PERL_MAGIC_tied)) { |
0d863452 RH |
4135 | tied = TRUE; |
4136 | } | |
ad64d0ec | 4137 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4138 | HV * const temp = other_hv; |
85fbaab2 | 4139 | other_hv = MUTABLE_HV(This); |
ad64d0ec | 4140 | This = MUTABLE_SV(temp); |
0d863452 RH |
4141 | tied = TRUE; |
4142 | } | |
ad64d0ec | 4143 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4144 | other_tied = TRUE; |
4145 | ||
85fbaab2 | 4146 | if (!tied && HvUSEDKEYS((const HV *) This) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4147 | RETPUSHNO; |
4148 | ||
4149 | /* The hashes have the same number of keys, so it suffices | |
4150 | to check that one is a subset of the other. */ | |
85fbaab2 NC |
4151 | (void) hv_iterinit(MUTABLE_HV(This)); |
4152 | while ( (he = hv_iternext(MUTABLE_HV(This))) ) { | |
0d863452 | 4153 | I32 key_len; |
c445ea15 | 4154 | char * const key = hv_iterkey(he, &key_len); |
0d863452 RH |
4155 | |
4156 | ++ this_key_count; | |
4157 | ||
4158 | if(!hv_exists(other_hv, key, key_len)) { | |
85fbaab2 | 4159 | (void) hv_iterinit(MUTABLE_HV(This)); /* reset iterator */ |
0d863452 RH |
4160 | RETPUSHNO; |
4161 | } | |
4162 | } | |
4163 | ||
4164 | if (other_tied) { | |
4165 | (void) hv_iterinit(other_hv); | |
4166 | while ( hv_iternext(other_hv) ) | |
4167 | ++other_key_count; | |
4168 | } | |
4169 | else | |
4170 | other_key_count = HvUSEDKEYS(other_hv); | |
4171 | ||
4172 | if (this_key_count != other_key_count) | |
4173 | RETPUSHNO; | |
4174 | else | |
4175 | RETPUSHYES; | |
4176 | } | |
4177 | else if (SM_OTHER_REF(PVAV)) { | |
502c6561 | 4178 | AV * const other_av = MUTABLE_AV(SvRV(Other)); |
c445ea15 | 4179 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4180 | I32 i; |
71b0fb34 DK |
4181 | |
4182 | for (i = 0; i < other_len; ++i) { | |
c445ea15 | 4183 | SV ** const svp = av_fetch(other_av, i, FALSE); |
0d863452 RH |
4184 | char *key; |
4185 | STRLEN key_len; | |
4186 | ||
71b0fb34 DK |
4187 | if (svp) { /* ??? When can this not happen? */ |
4188 | key = SvPV(*svp, key_len); | |
85fbaab2 | 4189 | if (hv_exists(MUTABLE_HV(This), key, key_len)) |
71b0fb34 DK |
4190 | RETPUSHYES; |
4191 | } | |
0d863452 | 4192 | } |
71b0fb34 | 4193 | RETPUSHNO; |
0d863452 RH |
4194 | } |
4195 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 4196 | PMOP * const matcher = make_matcher(other_regex); |
0d863452 RH |
4197 | HE *he; |
4198 | ||
85fbaab2 NC |
4199 | (void) hv_iterinit(MUTABLE_HV(This)); |
4200 | while ( (he = hv_iternext(MUTABLE_HV(This))) ) { | |
0d863452 | 4201 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
85fbaab2 | 4202 | (void) hv_iterinit(MUTABLE_HV(This)); |
0d863452 RH |
4203 | destroy_matcher(matcher); |
4204 | RETPUSHYES; | |
4205 | } | |
4206 | } | |
4207 | destroy_matcher(matcher); | |
4208 | RETPUSHNO; | |
4209 | } | |
4210 | else { | |
85fbaab2 | 4211 | if (hv_exists_ent(MUTABLE_HV(This), Other, 0)) |
0d863452 RH |
4212 | RETPUSHYES; |
4213 | else | |
4214 | RETPUSHNO; | |
4215 | } | |
4216 | } | |
4217 | else if (SM_REF(PVAV)) { | |
4218 | if (SM_OTHER_REF(PVAV)) { | |
502c6561 NC |
4219 | AV *other_av = MUTABLE_AV(SvRV(Other)); |
4220 | if (av_len(MUTABLE_AV(This)) != av_len(other_av)) | |
0d863452 RH |
4221 | RETPUSHNO; |
4222 | else { | |
4223 | I32 i; | |
c445ea15 | 4224 | const I32 other_len = av_len(other_av); |
0d863452 | 4225 | |
a0714e2c | 4226 | if (NULL == seen_this) { |
0d863452 | 4227 | seen_this = newHV(); |
ad64d0ec | 4228 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4229 | } |
a0714e2c | 4230 | if (NULL == seen_other) { |
0d863452 | 4231 | seen_this = newHV(); |
ad64d0ec | 4232 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4233 | } |
4234 | for(i = 0; i <= other_len; ++i) { | |
502c6561 | 4235 | SV * const * const this_elem = av_fetch(MUTABLE_AV(This), i, FALSE); |
c445ea15 AL |
4236 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4237 | ||
0d863452 RH |
4238 | if (!this_elem || !other_elem) { |
4239 | if (this_elem || other_elem) | |
4240 | RETPUSHNO; | |
4241 | } | |
4242 | else if (SM_SEEN_THIS(*this_elem) | |
4243 | || SM_SEEN_OTHER(*other_elem)) | |
4244 | { | |
4245 | if (*this_elem != *other_elem) | |
4246 | RETPUSHNO; | |
4247 | } | |
4248 | else { | |
04fe65b0 RGS |
4249 | (void)hv_store_ent(seen_this, |
4250 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4251 | &PL_sv_undef, 0); | |
4252 | (void)hv_store_ent(seen_other, | |
4253 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4254 | &PL_sv_undef, 0); | |
0d863452 RH |
4255 | PUSHs(*this_elem); |
4256 | PUSHs(*other_elem); | |
4257 | ||
4258 | PUTBACK; | |
4259 | (void) do_smartmatch(seen_this, seen_other); | |
4260 | SPAGAIN; | |
4261 | ||
4262 | if (!SvTRUEx(POPs)) | |
4263 | RETPUSHNO; | |
4264 | } | |
4265 | } | |
4266 | RETPUSHYES; | |
4267 | } | |
4268 | } | |
4269 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 4270 | PMOP * const matcher = make_matcher(other_regex); |
502c6561 | 4271 | const I32 this_len = av_len(MUTABLE_AV(This)); |
0d863452 | 4272 | I32 i; |
0d863452 RH |
4273 | |
4274 | for(i = 0; i <= this_len; ++i) { | |
502c6561 | 4275 | SV * const * const svp = av_fetch(MUTABLE_AV(This), i, FALSE); |
0d863452 RH |
4276 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4277 | destroy_matcher(matcher); | |
4278 | RETPUSHYES; | |
4279 | } | |
4280 | } | |
4281 | destroy_matcher(matcher); | |
4282 | RETPUSHNO; | |
4283 | } | |
10edeb5d | 4284 | else if (SvIOK(Other) || SvNOK(Other)) { |
0d863452 RH |
4285 | I32 i; |
4286 | ||
502c6561 NC |
4287 | for(i = 0; i <= AvFILL(MUTABLE_AV(This)); ++i) { |
4288 | SV * const * const svp = av_fetch(MUTABLE_AV(This), i, FALSE); | |
0d863452 RH |
4289 | if (!svp) |
4290 | continue; | |
4291 | ||
10edeb5d | 4292 | PUSHs(Other); |
0d863452 RH |
4293 | PUSHs(*svp); |
4294 | PUTBACK; | |
a98fe34d | 4295 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4296 | (void) pp_i_eq(); |
4297 | else | |
4298 | (void) pp_eq(); | |
4299 | SPAGAIN; | |
4300 | if (SvTRUEx(POPs)) | |
4301 | RETPUSHYES; | |
4302 | } | |
4303 | RETPUSHNO; | |
4304 | } | |
10edeb5d | 4305 | else if (SvPOK(Other)) { |
502c6561 | 4306 | const I32 this_len = av_len(MUTABLE_AV(This)); |
0d863452 | 4307 | I32 i; |
0d863452 RH |
4308 | |
4309 | for(i = 0; i <= this_len; ++i) { | |
502c6561 | 4310 | SV * const * const svp = av_fetch(MUTABLE_AV(This), i, FALSE); |
0d863452 RH |
4311 | if (!svp) |
4312 | continue; | |
4313 | ||
10edeb5d | 4314 | PUSHs(Other); |
0d863452 RH |
4315 | PUSHs(*svp); |
4316 | PUTBACK; | |
4317 | (void) pp_seq(); | |
4318 | SPAGAIN; | |
4319 | if (SvTRUEx(POPs)) | |
4320 | RETPUSHYES; | |
4321 | } | |
4322 | RETPUSHNO; | |
4323 | } | |
4324 | } | |
4325 | else if (!SvOK(d) || !SvOK(e)) { | |
4326 | if (!SvOK(d) && !SvOK(e)) | |
4327 | RETPUSHYES; | |
4328 | else | |
4329 | RETPUSHNO; | |
4330 | } | |
4331 | else if (SM_REGEX) { | |
c445ea15 | 4332 | PMOP * const matcher = make_matcher(this_regex); |
0d863452 RH |
4333 | |
4334 | PUTBACK; | |
10edeb5d | 4335 | PUSHs(matcher_matches_sv(matcher, Other) |
0d863452 RH |
4336 | ? &PL_sv_yes |
4337 | : &PL_sv_no); | |
4338 | destroy_matcher(matcher); | |
4339 | RETURN; | |
4340 | } | |
4341 | else if (SM_REF(PVCV)) { | |
4342 | I32 c; | |
4343 | /* This must be a null-prototyped sub, because we | |
4344 | already checked for the other kind. */ | |
4345 | ||
4346 | ENTER; | |
4347 | SAVETMPS; | |
4348 | PUSHMARK(SP); | |
4349 | PUTBACK; | |
10edeb5d | 4350 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
4351 | SPAGAIN; |
4352 | if (c == 0) | |
4353 | PUSHs(&PL_sv_undef); | |
4354 | else if (SvTEMP(TOPs)) | |
df528165 | 4355 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4356 | |
4357 | if (SM_OTHER_REF(PVCV)) { | |
4358 | /* This one has to be null-proto'd too. | |
4359 | Call both of 'em, and compare the results */ | |
4360 | PUSHMARK(SP); | |
10edeb5d | 4361 | c = call_sv(SvRV(Other), G_SCALAR); |
0d863452 RH |
4362 | SPAGAIN; |
4363 | if (c == 0) | |
4364 | PUSHs(&PL_sv_undef); | |
4365 | else if (SvTEMP(TOPs)) | |
df528165 | 4366 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4367 | FREETMPS; |
4368 | LEAVE; | |
4369 | PUTBACK; | |
4370 | return pp_eq(); | |
4371 | } | |
4372 | ||
4373 | FREETMPS; | |
4374 | LEAVE; | |
4375 | RETURN; | |
4376 | } | |
10edeb5d JH |
4377 | else if ( ((SvIOK(d) || SvNOK(d)) && (This = d) && (Other = e)) |
4378 | || ((SvIOK(e) || SvNOK(e)) && (This = e) && (Other = d)) ) | |
0d863452 | 4379 | { |
10edeb5d | 4380 | if (SvPOK(Other) && !looks_like_number(Other)) { |
0d863452 RH |
4381 | /* String comparison */ |
4382 | PUSHs(d); PUSHs(e); | |
4383 | PUTBACK; | |
4384 | return pp_seq(); | |
4385 | } | |
4386 | /* Otherwise, numeric comparison */ | |
4387 | PUSHs(d); PUSHs(e); | |
4388 | PUTBACK; | |
a98fe34d | 4389 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4390 | (void) pp_i_eq(); |
4391 | else | |
4392 | (void) pp_eq(); | |
4393 | SPAGAIN; | |
4394 | if (SvTRUEx(POPs)) | |
4395 | RETPUSHYES; | |
4396 | else | |
4397 | RETPUSHNO; | |
4398 | } | |
4399 | ||
4400 | /* As a last resort, use string comparison */ | |
4401 | PUSHs(d); PUSHs(e); | |
4402 | PUTBACK; | |
4403 | return pp_seq(); | |
4404 | } | |
4405 | ||
4406 | PP(pp_enterwhen) | |
4407 | { | |
4408 | dVAR; dSP; | |
4409 | register PERL_CONTEXT *cx; | |
4410 | const I32 gimme = GIMME_V; | |
4411 | ||
4412 | /* This is essentially an optimization: if the match | |
4413 | fails, we don't want to push a context and then | |
4414 | pop it again right away, so we skip straight | |
4415 | to the op that follows the leavewhen. | |
4416 | */ | |
4417 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4418 | return cLOGOP->op_other->op_next; | |
4419 | ||
4420 | ENTER; | |
4421 | SAVETMPS; | |
4422 | ||
4423 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4424 | PUSHWHEN(cx); | |
4425 | ||
4426 | RETURN; | |
4427 | } | |
4428 | ||
4429 | PP(pp_leavewhen) | |
4430 | { | |
4431 | dVAR; dSP; | |
4432 | register PERL_CONTEXT *cx; | |
4433 | I32 gimme; | |
4434 | SV **newsp; | |
4435 | PMOP *newpm; | |
4436 | ||
4437 | POPBLOCK(cx,newpm); | |
4438 | assert(CxTYPE(cx) == CXt_WHEN); | |
4439 | ||
4440 | SP = newsp; | |
4441 | PUTBACK; | |
4442 | ||
4443 | PL_curpm = newpm; /* pop $1 et al */ | |
4444 | ||
4445 | LEAVE; | |
4446 | return NORMAL; | |
4447 | } | |
4448 | ||
4449 | PP(pp_continue) | |
4450 | { | |
4451 | dVAR; | |
4452 | I32 cxix; | |
4453 | register PERL_CONTEXT *cx; | |
4454 | I32 inner; | |
4455 | ||
4456 | cxix = dopoptowhen(cxstack_ix); | |
4457 | if (cxix < 0) | |
4458 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4459 | if (cxix < cxstack_ix) | |
4460 | dounwind(cxix); | |
4461 | ||
4462 | /* clear off anything above the scope we're re-entering */ | |
4463 | inner = PL_scopestack_ix; | |
4464 | TOPBLOCK(cx); | |
4465 | if (PL_scopestack_ix < inner) | |
4466 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4467 | PL_curcop = cx->blk_oldcop; | |
4468 | return cx->blk_givwhen.leave_op; | |
4469 | } | |
4470 | ||
4471 | PP(pp_break) | |
4472 | { | |
4473 | dVAR; | |
4474 | I32 cxix; | |
4475 | register PERL_CONTEXT *cx; | |
4476 | I32 inner; | |
4477 | ||
4478 | cxix = dopoptogiven(cxstack_ix); | |
4479 | if (cxix < 0) { | |
4480 | if (PL_op->op_flags & OPf_SPECIAL) | |
4481 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4482 | else | |
4483 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4484 | } | |
4485 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4486 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4487 | ||
4488 | if (cxix < cxstack_ix) | |
4489 | dounwind(cxix); | |
4490 | ||
4491 | /* clear off anything above the scope we're re-entering */ | |
4492 | inner = PL_scopestack_ix; | |
4493 | TOPBLOCK(cx); | |
4494 | if (PL_scopestack_ix < inner) | |
4495 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4496 | PL_curcop = cx->blk_oldcop; | |
4497 | ||
4498 | if (CxFOREACH(cx)) | |
022eaa24 | 4499 | return CX_LOOP_NEXTOP_GET(cx); |
0d863452 RH |
4500 | else |
4501 | return cx->blk_givwhen.leave_op; | |
4502 | } | |
4503 | ||
a1b95068 | 4504 | STATIC OP * |
cea2e8a9 | 4505 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4506 | { |
4507 | STRLEN len; | |
4508 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4509 | register char * const send = s + len; |
4510 | register char *base = NULL; | |
a0d0e21e | 4511 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4512 | bool noblank = FALSE; |
4513 | bool repeat = FALSE; | |
a0d0e21e | 4514 | bool postspace = FALSE; |
dea28490 JJ |
4515 | U32 *fops; |
4516 | register U32 *fpc; | |
cbbf8932 | 4517 | U32 *linepc = NULL; |
a0d0e21e LW |
4518 | register I32 arg; |
4519 | bool ischop; | |
a1b95068 WL |
4520 | bool unchopnum = FALSE; |
4521 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4522 | |
7918f24d NC |
4523 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4524 | ||
55497cff | 4525 | if (len == 0) |
cea2e8a9 | 4526 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4527 | |
815f25c6 DM |
4528 | /* estimate the buffer size needed */ |
4529 | for (base = s; s <= send; s++) { | |
a1b95068 | 4530 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4531 | maxops += 10; |
4532 | } | |
4533 | s = base; | |
c445ea15 | 4534 | base = NULL; |
815f25c6 | 4535 | |
a02a5408 | 4536 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4537 | fpc = fops; |
4538 | ||
4539 | if (s < send) { | |
4540 | linepc = fpc; | |
4541 | *fpc++ = FF_LINEMARK; | |
4542 | noblank = repeat = FALSE; | |
4543 | base = s; | |
4544 | } | |
4545 | ||
4546 | while (s <= send) { | |
4547 | switch (*s++) { | |
4548 | default: | |
4549 | skipspaces = 0; | |
4550 | continue; | |
4551 | ||
4552 | case '~': | |
4553 | if (*s == '~') { | |
4554 | repeat = TRUE; | |
4555 | *s = ' '; | |
4556 | } | |
4557 | noblank = TRUE; | |
4558 | s[-1] = ' '; | |
4559 | /* FALL THROUGH */ | |
4560 | case ' ': case '\t': | |
4561 | skipspaces++; | |
4562 | continue; | |
a1b95068 WL |
4563 | case 0: |
4564 | if (s < send) { | |
4565 | skipspaces = 0; | |
4566 | continue; | |
4567 | } /* else FALL THROUGH */ | |
4568 | case '\n': | |
a0d0e21e LW |
4569 | arg = s - base; |
4570 | skipspaces++; | |
4571 | arg -= skipspaces; | |
4572 | if (arg) { | |
5f05dabc | 4573 | if (postspace) |
a0d0e21e | 4574 | *fpc++ = FF_SPACE; |
a0d0e21e | 4575 | *fpc++ = FF_LITERAL; |
eb160463 | 4576 | *fpc++ = (U16)arg; |
a0d0e21e | 4577 | } |
5f05dabc | 4578 | postspace = FALSE; |
a0d0e21e LW |
4579 | if (s <= send) |
4580 | skipspaces--; | |
4581 | if (skipspaces) { | |
4582 | *fpc++ = FF_SKIP; | |
eb160463 | 4583 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4584 | } |
4585 | skipspaces = 0; | |
4586 | if (s <= send) | |
4587 | *fpc++ = FF_NEWLINE; | |
4588 | if (noblank) { | |
4589 | *fpc++ = FF_BLANK; | |
4590 | if (repeat) | |
4591 | arg = fpc - linepc + 1; | |
4592 | else | |
4593 | arg = 0; | |
eb160463 | 4594 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4595 | } |
4596 | if (s < send) { | |
4597 | linepc = fpc; | |
4598 | *fpc++ = FF_LINEMARK; | |
4599 | noblank = repeat = FALSE; | |
4600 | base = s; | |
4601 | } | |
4602 | else | |
4603 | s++; | |
4604 | continue; | |
4605 | ||
4606 | case '@': | |
4607 | case '^': | |
4608 | ischop = s[-1] == '^'; | |
4609 | ||
4610 | if (postspace) { | |
4611 | *fpc++ = FF_SPACE; | |
4612 | postspace = FALSE; | |
4613 | } | |
4614 | arg = (s - base) - 1; | |
4615 | if (arg) { | |
4616 | *fpc++ = FF_LITERAL; | |
eb160463 | 4617 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4618 | } |
4619 | ||
4620 | base = s - 1; | |
4621 | *fpc++ = FF_FETCH; | |
4622 | if (*s == '*') { | |
4623 | s++; | |
a1b95068 WL |
4624 | *fpc++ = 2; /* skip the @* or ^* */ |
4625 | if (ischop) { | |
4626 | *fpc++ = FF_LINESNGL; | |
4627 | *fpc++ = FF_CHOP; | |
4628 | } else | |
4629 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4630 | } |
4631 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4632 | arg = ischop ? 512 : 0; | |
4633 | base = s - 1; | |
4634 | while (*s == '#') | |
4635 | s++; | |
4636 | if (*s == '.') { | |
06b5626a | 4637 | const char * const f = ++s; |
a0d0e21e LW |
4638 | while (*s == '#') |
4639 | s++; | |
4640 | arg |= 256 + (s - f); | |
4641 | } | |
4642 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4643 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4644 | *fpc++ = (U16)arg; |
a1b95068 | 4645 | unchopnum |= ! ischop; |
784707d5 JP |
4646 | } |
4647 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4648 | arg = ischop ? 512 : 0; | |
4649 | base = s - 1; | |
4650 | s++; /* skip the '0' first */ | |
4651 | while (*s == '#') | |
4652 | s++; | |
4653 | if (*s == '.') { | |
06b5626a | 4654 | const char * const f = ++s; |
784707d5 JP |
4655 | while (*s == '#') |
4656 | s++; | |
4657 | arg |= 256 + (s - f); | |
4658 | } | |
4659 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4660 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4661 | *fpc++ = (U16)arg; |
a1b95068 | 4662 | unchopnum |= ! ischop; |
a0d0e21e LW |
4663 | } |
4664 | else { | |
4665 | I32 prespace = 0; | |
4666 | bool ismore = FALSE; | |
4667 | ||
4668 | if (*s == '>') { | |
4669 | while (*++s == '>') ; | |
4670 | prespace = FF_SPACE; | |
4671 | } | |
4672 | else if (*s == '|') { | |
4673 | while (*++s == '|') ; | |
4674 | prespace = FF_HALFSPACE; | |
4675 | postspace = TRUE; | |
4676 | } | |
4677 | else { | |
4678 | if (*s == '<') | |
4679 | while (*++s == '<') ; | |
4680 | postspace = TRUE; | |
4681 | } | |
4682 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4683 | s += 3; | |
4684 | ismore = TRUE; | |
4685 | } | |
4686 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4687 | ||
4688 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4689 | ||
4690 | if (prespace) | |
eb160463 | 4691 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4692 | *fpc++ = FF_ITEM; |
4693 | if (ismore) | |
4694 | *fpc++ = FF_MORE; | |
4695 | if (ischop) | |
4696 | *fpc++ = FF_CHOP; | |
4697 | } | |
4698 | base = s; | |
4699 | skipspaces = 0; | |
4700 | continue; | |
4701 | } | |
4702 | } | |
4703 | *fpc++ = FF_END; | |
4704 | ||
815f25c6 | 4705 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4706 | arg = fpc - fops; |
4707 | { /* need to jump to the next word */ | |
4708 | int z; | |
4709 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4710 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4711 | s = SvPVX(sv) + SvCUR(sv) + z; |
4712 | } | |
dea28490 | 4713 | Copy(fops, s, arg, U32); |
a0d0e21e | 4714 | Safefree(fops); |
c445ea15 | 4715 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4716 | SvCOMPILED_on(sv); |
a1b95068 | 4717 | |
bfed75c6 | 4718 | if (unchopnum && repeat) |
a1b95068 WL |
4719 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4720 | return 0; | |
4721 | } | |
4722 | ||
4723 | ||
4724 | STATIC bool | |
4725 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4726 | { | |
4727 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4728 | NV pwr = 1; | |
4729 | NV eps = 0.5; | |
4730 | bool res = FALSE; | |
4731 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4732 | ||
4733 | if (frcsize & 256) | |
4734 | intsize--; | |
4735 | frcsize &= 255; | |
4736 | intsize -= frcsize; | |
4737 | ||
4738 | while (intsize--) pwr *= 10.0; | |
4739 | while (frcsize--) eps /= 10.0; | |
4740 | ||
4741 | if( value >= 0 ){ | |
4742 | if (value + eps >= pwr) | |
4743 | res = TRUE; | |
4744 | } else { | |
4745 | if (value - eps <= -pwr) | |
4746 | res = TRUE; | |
4747 | } | |
4748 | return res; | |
a0d0e21e | 4749 | } |
4e35701f | 4750 | |
bbed91b5 | 4751 | static I32 |
0bd48802 | 4752 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4753 | { |
27da23d5 | 4754 | dVAR; |
0bd48802 | 4755 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4756 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
4757 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
4758 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 4759 | int status = 0; |
ec0b63d7 | 4760 | SV *upstream; |
941a98a0 | 4761 | STRLEN got_len; |
95b63a38 | 4762 | const char *got_p = NULL; |
941a98a0 | 4763 | const char *prune_from = NULL; |
34113e50 | 4764 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
4765 | STRLEN umaxlen; |
4766 | ||
7918f24d NC |
4767 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
4768 | ||
bb7a0f54 MHM |
4769 | assert(maxlen >= 0); |
4770 | umaxlen = maxlen; | |
5675696b | 4771 | |
bbed91b5 KF |
4772 | /* I was having segfault trouble under Linux 2.2.5 after a |
4773 | parse error occured. (Had to hack around it with a test | |
13765c85 | 4774 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
4775 | not sure where the trouble is yet. XXX */ |
4776 | ||
941a98a0 | 4777 | if (IoFMT_GV(datasv)) { |
ad64d0ec | 4778 | SV *const cache = MUTABLE_SV(IoFMT_GV(datasv)); |
937b367d NC |
4779 | if (SvOK(cache)) { |
4780 | STRLEN cache_len; | |
4781 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
4782 | STRLEN take = 0; |
4783 | ||
bb7a0f54 | 4784 | if (umaxlen) { |
941a98a0 NC |
4785 | /* Running in block mode and we have some cached data already. |
4786 | */ | |
bb7a0f54 | 4787 | if (cache_len >= umaxlen) { |
941a98a0 NC |
4788 | /* In fact, so much data we don't even need to call |
4789 | filter_read. */ | |
bb7a0f54 | 4790 | take = umaxlen; |
941a98a0 NC |
4791 | } |
4792 | } else { | |
10edeb5d JH |
4793 | const char *const first_nl = |
4794 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
4795 | if (first_nl) { |
4796 | take = first_nl + 1 - cache_p; | |
4797 | } | |
4798 | } | |
4799 | if (take) { | |
4800 | sv_catpvn(buf_sv, cache_p, take); | |
4801 | sv_chop(cache, cache_p + take); | |
937b367d NC |
4802 | /* Definately not EOF */ |
4803 | return 1; | |
4804 | } | |
941a98a0 | 4805 | |
937b367d | 4806 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
4807 | if (umaxlen) { |
4808 | umaxlen -= cache_len; | |
941a98a0 | 4809 | } |
937b367d | 4810 | SvOK_off(cache); |
34113e50 | 4811 | read_from_cache = TRUE; |
937b367d NC |
4812 | } |
4813 | } | |
ec0b63d7 | 4814 | |
34113e50 NC |
4815 | /* Filter API says that the filter appends to the contents of the buffer. |
4816 | Usually the buffer is "", so the details don't matter. But if it's not, | |
4817 | then clearly what it contains is already filtered by this filter, so we | |
4818 | don't want to pass it in a second time. | |
4819 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
4820 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
4821 | ? sv_newmortal() : buf_sv; | |
4822 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 4823 | |
bbed91b5 | 4824 | if (filter_has_file) { |
67e70b33 | 4825 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
4826 | } |
4827 | ||
34113e50 | 4828 | if (filter_sub && status >= 0) { |
39644a26 | 4829 | dSP; |
bbed91b5 KF |
4830 | int count; |
4831 | ||
4832 | ENTER; | |
4833 | SAVE_DEFSV; | |
4834 | SAVETMPS; | |
4835 | EXTEND(SP, 2); | |
4836 | ||
414bf5ae | 4837 | DEFSV_set(upstream); |
bbed91b5 | 4838 | PUSHMARK(SP); |
6e449a3a | 4839 | mPUSHi(0); |
bbed91b5 KF |
4840 | if (filter_state) { |
4841 | PUSHs(filter_state); | |
4842 | } | |
4843 | PUTBACK; | |
4844 | count = call_sv(filter_sub, G_SCALAR); | |
4845 | SPAGAIN; | |
4846 | ||
4847 | if (count > 0) { | |
4848 | SV *out = POPs; | |
4849 | if (SvOK(out)) { | |
941a98a0 | 4850 | status = SvIV(out); |
bbed91b5 KF |
4851 | } |
4852 | } | |
4853 | ||
4854 | PUTBACK; | |
4855 | FREETMPS; | |
4856 | LEAVE; | |
4857 | } | |
4858 | ||
941a98a0 NC |
4859 | if(SvOK(upstream)) { |
4860 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
4861 | if (umaxlen) { |
4862 | if (got_len > umaxlen) { | |
4863 | prune_from = got_p + umaxlen; | |
937b367d | 4864 | } |
941a98a0 | 4865 | } else { |
10edeb5d JH |
4866 | const char *const first_nl = |
4867 | (const char *)memchr(got_p, '\n', got_len); | |
941a98a0 NC |
4868 | if (first_nl && first_nl + 1 < got_p + got_len) { |
4869 | /* There's a second line here... */ | |
4870 | prune_from = first_nl + 1; | |
937b367d | 4871 | } |
937b367d NC |
4872 | } |
4873 | } | |
941a98a0 NC |
4874 | if (prune_from) { |
4875 | /* Oh. Too long. Stuff some in our cache. */ | |
4876 | STRLEN cached_len = got_p + got_len - prune_from; | |
ad64d0ec | 4877 | SV *cache = MUTABLE_SV(IoFMT_GV(datasv)); |
941a98a0 NC |
4878 | |
4879 | if (!cache) { | |
159b6efe | 4880 | IoFMT_GV(datasv) = MUTABLE_GV((cache = newSV(got_len - umaxlen))); |
941a98a0 NC |
4881 | } else if (SvOK(cache)) { |
4882 | /* Cache should be empty. */ | |
4883 | assert(!SvCUR(cache)); | |
4884 | } | |
4885 | ||
4886 | sv_setpvn(cache, prune_from, cached_len); | |
4887 | /* If you ask for block mode, you may well split UTF-8 characters. | |
4888 | "If it breaks, you get to keep both parts" | |
4889 | (Your code is broken if you don't put them back together again | |
4890 | before something notices.) */ | |
4891 | if (SvUTF8(upstream)) { | |
4892 | SvUTF8_on(cache); | |
4893 | } | |
4894 | SvCUR_set(upstream, got_len - cached_len); | |
4895 | /* Can't yet be EOF */ | |
4896 | if (status == 0) | |
4897 | status = 1; | |
4898 | } | |
937b367d | 4899 | |
34113e50 NC |
4900 | /* If they are at EOF but buf_sv has something in it, then they may never |
4901 | have touched the SV upstream, so it may be undefined. If we naively | |
4902 | concatenate it then we get a warning about use of uninitialised value. | |
4903 | */ | |
4904 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
4905 | sv_catsv(buf_sv, upstream); |
4906 | } | |
4907 | ||
941a98a0 | 4908 | if (status <= 0) { |
bbed91b5 | 4909 | IoLINES(datasv) = 0; |
937b367d | 4910 | SvREFCNT_dec(IoFMT_GV(datasv)); |
bbed91b5 KF |
4911 | if (filter_state) { |
4912 | SvREFCNT_dec(filter_state); | |
a0714e2c | 4913 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
4914 | } |
4915 | if (filter_sub) { | |
4916 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 4917 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 4918 | } |
0bd48802 | 4919 | filter_del(S_run_user_filter); |
bbed91b5 | 4920 | } |
34113e50 NC |
4921 | if (status == 0 && read_from_cache) { |
4922 | /* If we read some data from the cache (and by getting here it implies | |
4923 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
4924 | report that to our caller. */ | |
4925 | return 1; | |
4926 | } | |
941a98a0 | 4927 | return status; |
bbed91b5 | 4928 | } |
84d4ea48 | 4929 | |
be4b629d CN |
4930 | /* perhaps someone can come up with a better name for |
4931 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 4932 | static bool |
5f66b61c | 4933 | S_path_is_absolute(const char *name) |
be4b629d | 4934 | { |
7918f24d NC |
4935 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
4936 | ||
be4b629d CN |
4937 | if (PERL_FILE_IS_ABSOLUTE(name) |
4938 | #ifdef MACOS_TRADITIONAL | |
0bd48802 | 4939 | || (*name == ':') |
be4b629d CN |
4940 | #else |
4941 | || (*name == '.' && (name[1] == '/' || | |
0bd48802 | 4942 | (name[1] == '.' && name[2] == '/'))) |
be4b629d | 4943 | #endif |
0bd48802 | 4944 | ) |
be4b629d CN |
4945 | { |
4946 | return TRUE; | |
4947 | } | |
4948 | else | |
4949 | return FALSE; | |
4950 | } | |
241d1a3b NC |
4951 | |
4952 | /* | |
4953 | * Local variables: | |
4954 | * c-indentation-style: bsd | |
4955 | * c-basic-offset: 4 | |
4956 | * indent-tabs-mode: t | |
4957 | * End: | |
4958 | * | |
37442d52 RGS |
4959 | * ex: set ts=8 sts=4 sw=4 noet: |
4960 | */ |