Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
fdf8c088 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 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 | /* | |
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 | ||
166f8a29 DM |
20 | /* This file contains control-oriented pp ("push/pop") functions that |
21 | * execute the opcodes that make up a perl program. A typical pp function | |
22 | * expects to find its arguments on the stack, and usually pushes its | |
23 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
24 | * contains a pointer to the relevant pp_foo() function. | |
25 | * | |
26 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
27 | * alter the flow of control of the program. | |
28 | */ | |
29 | ||
30 | ||
a0d0e21e | 31 | #include "EXTERN.h" |
864dbfa3 | 32 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
33 | #include "perl.h" |
34 | ||
35 | #ifndef WORD_ALIGN | |
dea28490 | 36 | #define WORD_ALIGN sizeof(U32) |
a0d0e21e LW |
37 | #endif |
38 | ||
54310121 | 39 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 40 | |
94fcd414 NC |
41 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
42 | ||
a0d0e21e LW |
43 | PP(pp_wantarray) |
44 | { | |
97aff369 | 45 | dVAR; |
39644a26 | 46 | dSP; |
a0d0e21e LW |
47 | I32 cxix; |
48 | EXTEND(SP, 1); | |
49 | ||
50 | cxix = dopoptosub(cxstack_ix); | |
51 | if (cxix < 0) | |
52 | RETPUSHUNDEF; | |
53 | ||
54310121 | 54 | switch (cxstack[cxix].blk_gimme) { |
55 | case G_ARRAY: | |
a0d0e21e | 56 | RETPUSHYES; |
54310121 | 57 | case G_SCALAR: |
a0d0e21e | 58 | RETPUSHNO; |
54310121 | 59 | default: |
60 | RETPUSHUNDEF; | |
61 | } | |
a0d0e21e LW |
62 | } |
63 | ||
2cd61cdb IZ |
64 | PP(pp_regcreset) |
65 | { | |
97aff369 | 66 | dVAR; |
2cd61cdb IZ |
67 | /* XXXX Should store the old value to allow for tie/overload - and |
68 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 69 | PL_reginterp_cnt = 0; |
0b4182de | 70 | TAINT_NOT; |
2cd61cdb IZ |
71 | return NORMAL; |
72 | } | |
73 | ||
b3eb6a9b GS |
74 | PP(pp_regcomp) |
75 | { | |
97aff369 | 76 | dVAR; |
39644a26 | 77 | dSP; |
a0d0e21e | 78 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 79 | SV *tmpstr; |
4608196e | 80 | MAGIC *mg = NULL; |
c737faaf | 81 | regexp * re; |
bfed75c6 | 82 | |
4b5a0d1c | 83 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 84 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
85 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
86 | if (PL_op->op_flags & OPf_STACKED) { | |
87 | dMARK; | |
88 | SP = MARK; | |
89 | } | |
90 | else | |
91 | (void)POPs; | |
92 | RETURN; | |
93 | } | |
513629ba | 94 | #endif |
131b3ad0 DM |
95 | if (PL_op->op_flags & OPf_STACKED) { |
96 | /* multiple args; concatentate them */ | |
97 | dMARK; dORIGMARK; | |
98 | tmpstr = PAD_SV(ARGTARG); | |
99 | sv_setpvn(tmpstr, "", 0); | |
100 | while (++MARK <= SP) { | |
101 | if (PL_amagic_generation) { | |
102 | SV *sv; | |
103 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(*MARK)) && | |
104 | (sv = amagic_call(tmpstr, *MARK, concat_amg, AMGf_assign))) | |
105 | { | |
106 | sv_setsv(tmpstr, sv); | |
107 | continue; | |
108 | } | |
109 | } | |
110 | sv_catsv(tmpstr, *MARK); | |
111 | } | |
112 | SvSETMAGIC(tmpstr); | |
113 | SP = ORIGMARK; | |
114 | } | |
115 | else | |
116 | tmpstr = POPs; | |
513629ba | 117 | |
b3eb6a9b | 118 | if (SvROK(tmpstr)) { |
d8f6592e | 119 | SV * const sv = SvRV(tmpstr); |
c277df42 | 120 | if(SvMAGICAL(sv)) |
14befaf4 | 121 | mg = mg_find(sv, PERL_MAGIC_qr); |
c277df42 | 122 | } |
b3eb6a9b | 123 | if (mg) { |
28d8d7f4 | 124 | regexp * const re = reg_temp_copy((regexp *)mg->mg_obj); |
aaa362c4 | 125 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 126 | PM_SETRE(pm, re); |
c277df42 IZ |
127 | } |
128 | else { | |
e62f0680 | 129 | STRLEN len; |
3ab4a224 | 130 | const char *t = SvOK(tmpstr) ? SvPV_const(tmpstr, len) : ""; |
c737faaf | 131 | re = PM_GETRE(pm); |
c277df42 | 132 | |
20408e3c | 133 | /* Check against the last compiled regexp. */ |
d8f6592e AL |
134 | if (!re || !re->precomp || re->prelen != (I32)len || |
135 | memNE(re->precomp, t, len)) | |
85aff577 | 136 | { |
664e119d | 137 | const regexp_engine *eng = re ? re->engine : NULL; |
c737faaf | 138 | U32 pm_flags = pm->op_pmflags & PMf_COMPILETIME; |
d8f6592e AL |
139 | if (re) { |
140 | ReREFCNT_dec(re); | |
4608196e | 141 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
1e2e3d02 YO |
142 | } else if (PL_curcop->cop_hints_hash) { |
143 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
144 | "regcomp", 7, 0, 0); | |
145 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
146 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 147 | } |
664e119d | 148 | |
533c011a | 149 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 150 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 151 | |
84e09d5e | 152 | if (DO_UTF8(tmpstr)) |
c737faaf YO |
153 | pm_flags |= RXf_UTF8; |
154 | ||
3ab4a224 AB |
155 | if (eng) |
156 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); | |
157 | else | |
158 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); | |
c737faaf | 159 | |
f86aaa29 | 160 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 161 | inside tie/overload accessors. */ |
c277df42 | 162 | } |
4633a7c4 | 163 | } |
c737faaf YO |
164 | |
165 | re = PM_GETRE(pm); | |
a0d0e21e | 166 | |
72311751 | 167 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
168 | if (PL_tainting) { |
169 | if (PL_tainted) | |
c737faaf | 170 | re->extflags |= RXf_TAINTED; |
72311751 | 171 | else |
c737faaf | 172 | re->extflags &= ~RXf_TAINTED; |
72311751 GS |
173 | } |
174 | #endif | |
175 | ||
aaa362c4 | 176 | if (!PM_GETRE(pm)->prelen && PL_curpm) |
3280af22 | 177 | pm = PL_curpm; |
a0d0e21e | 178 | |
c737faaf YO |
179 | |
180 | #if !defined(USE_ITHREADS) | |
181 | /* can't change the optree at runtime either */ | |
182 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 183 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 184 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 185 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 186 | } |
c737faaf | 187 | #endif |
a0d0e21e LW |
188 | RETURN; |
189 | } | |
190 | ||
191 | PP(pp_substcont) | |
192 | { | |
97aff369 | 193 | dVAR; |
39644a26 | 194 | dSP; |
c09156bb | 195 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
196 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
197 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
198 | register char *s = cx->sb_s; |
199 | register char *m = cx->sb_m; | |
200 | char *orig = cx->sb_orig; | |
901017d6 | 201 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 202 | SV *nsv = NULL; |
988e6e7e AE |
203 | REGEXP *old = PM_GETRE(pm); |
204 | if(old != rx) { | |
bfed75c6 | 205 | if(old) |
988e6e7e | 206 | ReREFCNT_dec(old); |
e22ae1e2 | 207 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
208 | } |
209 | ||
d9f97599 | 210 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 211 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 212 | |
a0d0e21e | 213 | if (cx->sb_iters++) { |
a3b680e6 | 214 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 215 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 216 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 217 | |
48c036b1 GS |
218 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
219 | cx->sb_rxtainted |= 2; | |
a0d0e21e | 220 | sv_catsv(dstr, POPs); |
8ff629d9 | 221 | FREETMPS; /* Prevent excess tmp stack */ |
a0d0e21e LW |
222 | |
223 | /* Are we done */ | |
f9f4320a | 224 | if (cx->sb_once || !CALLREGEXEC(rx, s, cx->sb_strend, orig, |
9661b544 | 225 | s == m, cx->sb_targ, NULL, |
22e551b9 | 226 | ((cx->sb_rflags & REXEC_COPY_STR) |
cf93c79d IZ |
227 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) |
228 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 229 | { |
823a54a3 | 230 | SV * const targ = cx->sb_targ; |
748a9306 | 231 | |
078c425b JH |
232 | assert(cx->sb_strend >= s); |
233 | if(cx->sb_strend > s) { | |
234 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
235 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
236 | else | |
237 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
238 | } | |
48c036b1 | 239 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 240 | |
f8c7b90f | 241 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
242 | if (SvIsCOW(targ)) { |
243 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
244 | } else | |
245 | #endif | |
246 | { | |
8bd4d4c5 | 247 | SvPV_free(targ); |
ed252734 | 248 | } |
f880fe2f | 249 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
250 | SvCUR_set(targ, SvCUR(dstr)); |
251 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
252 | if (DO_UTF8(dstr)) |
253 | SvUTF8_on(targ); | |
6136c704 | 254 | SvPV_set(dstr, NULL); |
48c036b1 GS |
255 | |
256 | TAINT_IF(cx->sb_rxtainted & 1); | |
22e13caa | 257 | PUSHs(sv_2mortal(newSViv(saviters - 1))); |
48c036b1 | 258 | |
ffc61ed2 | 259 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 260 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 261 | SvSETMAGIC(targ); |
9212bbba | 262 | SvTAINT(targ); |
5cd24f17 | 263 | |
4633a7c4 | 264 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
265 | POPSUBST(cx); |
266 | RETURNOP(pm->op_next); | |
267 | } | |
8e5e9ebe | 268 | cx->sb_iters = saviters; |
a0d0e21e | 269 | } |
cf93c79d | 270 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
271 | m = s; |
272 | s = orig; | |
cf93c79d | 273 | cx->sb_orig = orig = rx->subbeg; |
a0d0e21e LW |
274 | s = orig + (m - s); |
275 | cx->sb_strend = s + (cx->sb_strend - m); | |
276 | } | |
f0ab9afb | 277 | cx->sb_m = m = rx->offs[0].start + orig; |
db79b45b | 278 | if (m > s) { |
bfed75c6 | 279 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
280 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
281 | else | |
282 | sv_catpvn(dstr, s, m-s); | |
283 | } | |
f0ab9afb | 284 | cx->sb_s = rx->offs[0].end + orig; |
084916e3 | 285 | { /* Update the pos() information. */ |
44f8325f | 286 | SV * const sv = cx->sb_targ; |
084916e3 JH |
287 | MAGIC *mg; |
288 | I32 i; | |
7a7f3e45 | 289 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 290 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 291 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 292 | if (SvIsCOW(sv)) |
d83f0a82 NC |
293 | sv_force_normal_flags(sv, 0); |
294 | #endif | |
295 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
296 | NULL, 0); | |
084916e3 JH |
297 | } |
298 | i = m - orig; | |
299 | if (DO_UTF8(sv)) | |
300 | sv_pos_b2u(sv, &i); | |
301 | mg->mg_len = i; | |
302 | } | |
988e6e7e | 303 | if (old != rx) |
454f1e26 | 304 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
305 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
306 | rxres_save(&cx->sb_rxres, rx); | |
29f2e912 | 307 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
308 | } |
309 | ||
c90c0ff4 | 310 | void |
864dbfa3 | 311 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 312 | { |
313 | UV *p = (UV*)*rsp; | |
314 | U32 i; | |
96a5add6 | 315 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 316 | |
d9f97599 | 317 | if (!p || p[1] < rx->nparens) { |
f8c7b90f | 318 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
319 | i = 7 + rx->nparens * 2; |
320 | #else | |
d9f97599 | 321 | i = 6 + rx->nparens * 2; |
ed252734 | 322 | #endif |
c90c0ff4 | 323 | if (!p) |
a02a5408 | 324 | Newx(p, i, UV); |
c90c0ff4 | 325 | else |
326 | Renew(p, i, UV); | |
327 | *rsp = (void*)p; | |
328 | } | |
329 | ||
c445ea15 | 330 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? rx->subbeg : NULL); |
cf93c79d | 331 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 332 | |
f8c7b90f | 333 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 | 334 | *p++ = PTR2UV(rx->saved_copy); |
c445ea15 | 335 | rx->saved_copy = NULL; |
ed252734 NC |
336 | #endif |
337 | ||
d9f97599 | 338 | *p++ = rx->nparens; |
c90c0ff4 | 339 | |
56431972 | 340 | *p++ = PTR2UV(rx->subbeg); |
cf93c79d | 341 | *p++ = (UV)rx->sublen; |
d9f97599 | 342 | for (i = 0; i <= rx->nparens; ++i) { |
f0ab9afb NC |
343 | *p++ = (UV)rx->offs[i].start; |
344 | *p++ = (UV)rx->offs[i].end; | |
c90c0ff4 | 345 | } |
346 | } | |
347 | ||
348 | void | |
864dbfa3 | 349 | Perl_rxres_restore(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 350 | { |
351 | UV *p = (UV*)*rsp; | |
352 | U32 i; | |
96a5add6 | 353 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 354 | |
ed252734 | 355 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 356 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 357 | *p++ = 0; |
358 | ||
f8c7b90f | 359 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
360 | if (rx->saved_copy) |
361 | SvREFCNT_dec (rx->saved_copy); | |
362 | rx->saved_copy = INT2PTR(SV*,*p); | |
363 | *p++ = 0; | |
364 | #endif | |
365 | ||
d9f97599 | 366 | rx->nparens = *p++; |
c90c0ff4 | 367 | |
56431972 | 368 | rx->subbeg = INT2PTR(char*,*p++); |
cf93c79d | 369 | rx->sublen = (I32)(*p++); |
d9f97599 | 370 | for (i = 0; i <= rx->nparens; ++i) { |
f0ab9afb NC |
371 | rx->offs[i].start = (I32)(*p++); |
372 | rx->offs[i].end = (I32)(*p++); | |
c90c0ff4 | 373 | } |
374 | } | |
375 | ||
376 | void | |
864dbfa3 | 377 | Perl_rxres_free(pTHX_ void **rsp) |
c90c0ff4 | 378 | { |
44f8325f | 379 | UV * const p = (UV*)*rsp; |
96a5add6 | 380 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 381 | |
382 | if (p) { | |
94010e71 NC |
383 | #ifdef PERL_POISON |
384 | void *tmp = INT2PTR(char*,*p); | |
385 | Safefree(tmp); | |
386 | if (*p) | |
7e337ee0 | 387 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 388 | #else |
56431972 | 389 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 390 | #endif |
f8c7b90f | 391 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
392 | if (p[1]) { |
393 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
394 | } | |
395 | #endif | |
c90c0ff4 | 396 | Safefree(p); |
4608196e | 397 | *rsp = NULL; |
c90c0ff4 | 398 | } |
399 | } | |
400 | ||
a0d0e21e LW |
401 | PP(pp_formline) |
402 | { | |
97aff369 | 403 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 404 | register SV * const tmpForm = *++MARK; |
dea28490 | 405 | register U32 *fpc; |
a0d0e21e | 406 | register char *t; |
245d4a47 | 407 | const char *f; |
a0d0e21e | 408 | register I32 arg; |
c445ea15 AL |
409 | register SV *sv = NULL; |
410 | const char *item = NULL; | |
9c5ffd7c JH |
411 | I32 itemsize = 0; |
412 | I32 fieldsize = 0; | |
a0d0e21e | 413 | I32 lines = 0; |
c445ea15 AL |
414 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
415 | const char *chophere = NULL; | |
416 | char *linemark = NULL; | |
65202027 | 417 | NV value; |
9c5ffd7c | 418 | bool gotsome = FALSE; |
a0d0e21e | 419 | STRLEN len; |
823a54a3 | 420 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 421 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
422 | bool item_is_utf8 = FALSE; |
423 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 424 | SV * nsv = NULL; |
cbbf8932 | 425 | OP * parseres = NULL; |
bfed75c6 | 426 | const char *fmt; |
a1b95068 | 427 | bool oneline; |
a0d0e21e | 428 | |
76e3520e | 429 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
430 | if (SvREADONLY(tmpForm)) { |
431 | SvREADONLY_off(tmpForm); | |
a1b95068 | 432 | parseres = doparseform(tmpForm); |
445b3f51 GS |
433 | SvREADONLY_on(tmpForm); |
434 | } | |
435 | else | |
a1b95068 WL |
436 | parseres = doparseform(tmpForm); |
437 | if (parseres) | |
438 | return parseres; | |
a0d0e21e | 439 | } |
3280af22 | 440 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
441 | if (DO_UTF8(PL_formtarget)) |
442 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 443 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 444 | t += len; |
245d4a47 | 445 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 446 | /* need to jump to the next word */ |
245d4a47 | 447 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
448 | |
449 | for (;;) { | |
450 | DEBUG_f( { | |
bfed75c6 | 451 | const char *name = "???"; |
a0d0e21e LW |
452 | arg = -1; |
453 | switch (*fpc) { | |
454 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
455 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
456 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
457 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
458 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
459 | ||
460 | case FF_CHECKNL: name = "CHECKNL"; break; | |
461 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
462 | case FF_SPACE: name = "SPACE"; break; | |
463 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
464 | case FF_ITEM: name = "ITEM"; break; | |
465 | case FF_CHOP: name = "CHOP"; break; | |
466 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
467 | case FF_NEWLINE: name = "NEWLINE"; break; | |
468 | case FF_MORE: name = "MORE"; break; | |
469 | case FF_LINEMARK: name = "LINEMARK"; break; | |
470 | case FF_END: name = "END"; break; | |
bfed75c6 | 471 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 472 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
473 | } |
474 | if (arg >= 0) | |
bf49b057 | 475 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 476 | else |
bf49b057 | 477 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 478 | } ); |
a0d0e21e LW |
479 | switch (*fpc++) { |
480 | case FF_LINEMARK: | |
481 | linemark = t; | |
a0d0e21e LW |
482 | lines++; |
483 | gotsome = FALSE; | |
484 | break; | |
485 | ||
486 | case FF_LITERAL: | |
487 | arg = *fpc++; | |
1bd51a4c | 488 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 489 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
490 | *t = '\0'; |
491 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
492 | t = SvEND(PL_formtarget); | |
1bd51a4c IH |
493 | break; |
494 | } | |
495 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 496 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
497 | *t = '\0'; |
498 | sv_utf8_upgrade(PL_formtarget); | |
499 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
500 | t = SvEND(PL_formtarget); | |
501 | targ_is_utf8 = TRUE; | |
502 | } | |
a0d0e21e LW |
503 | while (arg--) |
504 | *t++ = *f++; | |
505 | break; | |
506 | ||
507 | case FF_SKIP: | |
508 | f += *fpc++; | |
509 | break; | |
510 | ||
511 | case FF_FETCH: | |
512 | arg = *fpc++; | |
513 | f += arg; | |
514 | fieldsize = arg; | |
515 | ||
516 | if (MARK < SP) | |
517 | sv = *++MARK; | |
518 | else { | |
3280af22 | 519 | sv = &PL_sv_no; |
599cee73 | 520 | if (ckWARN(WARN_SYNTAX)) |
9014280d | 521 | Perl_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
522 | } |
523 | break; | |
524 | ||
525 | case FF_CHECKNL: | |
5a34cab7 NC |
526 | { |
527 | const char *send; | |
528 | const char *s = item = SvPV_const(sv, len); | |
529 | itemsize = len; | |
530 | if (DO_UTF8(sv)) { | |
531 | itemsize = sv_len_utf8(sv); | |
532 | if (itemsize != (I32)len) { | |
533 | I32 itembytes; | |
534 | if (itemsize > fieldsize) { | |
535 | itemsize = fieldsize; | |
536 | itembytes = itemsize; | |
537 | sv_pos_u2b(sv, &itembytes, 0); | |
538 | } | |
539 | else | |
540 | itembytes = len; | |
541 | send = chophere = s + itembytes; | |
542 | while (s < send) { | |
543 | if (*s & ~31) | |
544 | gotsome = TRUE; | |
545 | else if (*s == '\n') | |
546 | break; | |
547 | s++; | |
548 | } | |
549 | item_is_utf8 = TRUE; | |
550 | itemsize = s - item; | |
551 | sv_pos_b2u(sv, &itemsize); | |
552 | break; | |
a0ed51b3 | 553 | } |
a0ed51b3 | 554 | } |
5a34cab7 NC |
555 | item_is_utf8 = FALSE; |
556 | if (itemsize > fieldsize) | |
557 | itemsize = fieldsize; | |
558 | send = chophere = s + itemsize; | |
559 | while (s < send) { | |
560 | if (*s & ~31) | |
561 | gotsome = TRUE; | |
562 | else if (*s == '\n') | |
563 | break; | |
564 | s++; | |
565 | } | |
566 | itemsize = s - item; | |
567 | break; | |
a0ed51b3 | 568 | } |
a0d0e21e LW |
569 | |
570 | case FF_CHECKCHOP: | |
5a34cab7 NC |
571 | { |
572 | const char *s = item = SvPV_const(sv, len); | |
573 | itemsize = len; | |
574 | if (DO_UTF8(sv)) { | |
575 | itemsize = sv_len_utf8(sv); | |
576 | if (itemsize != (I32)len) { | |
577 | I32 itembytes; | |
578 | if (itemsize <= fieldsize) { | |
579 | const char *send = chophere = s + itemsize; | |
580 | while (s < send) { | |
581 | if (*s == '\r') { | |
582 | itemsize = s - item; | |
a0ed51b3 | 583 | chophere = s; |
a0ed51b3 | 584 | break; |
5a34cab7 NC |
585 | } |
586 | if (*s++ & ~31) | |
a0ed51b3 | 587 | gotsome = TRUE; |
a0ed51b3 | 588 | } |
a0ed51b3 | 589 | } |
5a34cab7 NC |
590 | else { |
591 | const char *send; | |
592 | itemsize = fieldsize; | |
593 | itembytes = itemsize; | |
594 | sv_pos_u2b(sv, &itembytes, 0); | |
595 | send = chophere = s + itembytes; | |
596 | while (s < send || (s == send && isSPACE(*s))) { | |
597 | if (isSPACE(*s)) { | |
598 | if (chopspace) | |
599 | chophere = s; | |
600 | if (*s == '\r') | |
601 | break; | |
602 | } | |
603 | else { | |
604 | if (*s & ~31) | |
605 | gotsome = TRUE; | |
606 | if (strchr(PL_chopset, *s)) | |
607 | chophere = s + 1; | |
608 | } | |
609 | s++; | |
610 | } | |
611 | itemsize = chophere - item; | |
612 | sv_pos_b2u(sv, &itemsize); | |
613 | } | |
614 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
615 | break; |
616 | } | |
a0d0e21e | 617 | } |
5a34cab7 NC |
618 | item_is_utf8 = FALSE; |
619 | if (itemsize <= fieldsize) { | |
620 | const char *const send = chophere = s + itemsize; | |
621 | while (s < send) { | |
622 | if (*s == '\r') { | |
623 | itemsize = s - item; | |
a0d0e21e | 624 | chophere = s; |
a0d0e21e | 625 | break; |
5a34cab7 NC |
626 | } |
627 | if (*s++ & ~31) | |
a0d0e21e | 628 | gotsome = TRUE; |
a0d0e21e | 629 | } |
a0d0e21e | 630 | } |
5a34cab7 NC |
631 | else { |
632 | const char *send; | |
633 | itemsize = fieldsize; | |
634 | send = chophere = s + itemsize; | |
635 | while (s < send || (s == send && isSPACE(*s))) { | |
636 | if (isSPACE(*s)) { | |
637 | if (chopspace) | |
638 | chophere = s; | |
639 | if (*s == '\r') | |
640 | break; | |
641 | } | |
642 | else { | |
643 | if (*s & ~31) | |
644 | gotsome = TRUE; | |
645 | if (strchr(PL_chopset, *s)) | |
646 | chophere = s + 1; | |
647 | } | |
648 | s++; | |
649 | } | |
650 | itemsize = chophere - item; | |
651 | } | |
652 | break; | |
a0d0e21e | 653 | } |
a0d0e21e LW |
654 | |
655 | case FF_SPACE: | |
656 | arg = fieldsize - itemsize; | |
657 | if (arg) { | |
658 | fieldsize -= arg; | |
659 | while (arg-- > 0) | |
660 | *t++ = ' '; | |
661 | } | |
662 | break; | |
663 | ||
664 | case FF_HALFSPACE: | |
665 | arg = fieldsize - itemsize; | |
666 | if (arg) { | |
667 | arg /= 2; | |
668 | fieldsize -= arg; | |
669 | while (arg-- > 0) | |
670 | *t++ = ' '; | |
671 | } | |
672 | break; | |
673 | ||
674 | case FF_ITEM: | |
5a34cab7 NC |
675 | { |
676 | const char *s = item; | |
677 | arg = itemsize; | |
678 | if (item_is_utf8) { | |
679 | if (!targ_is_utf8) { | |
680 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
681 | *t = '\0'; | |
682 | sv_utf8_upgrade(PL_formtarget); | |
683 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
684 | t = SvEND(PL_formtarget); | |
685 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 686 | } |
5a34cab7 NC |
687 | while (arg--) { |
688 | if (UTF8_IS_CONTINUED(*s)) { | |
689 | STRLEN skip = UTF8SKIP(s); | |
690 | switch (skip) { | |
691 | default: | |
692 | Move(s,t,skip,char); | |
693 | s += skip; | |
694 | t += skip; | |
695 | break; | |
696 | case 7: *t++ = *s++; | |
697 | case 6: *t++ = *s++; | |
698 | case 5: *t++ = *s++; | |
699 | case 4: *t++ = *s++; | |
700 | case 3: *t++ = *s++; | |
701 | case 2: *t++ = *s++; | |
702 | case 1: *t++ = *s++; | |
703 | } | |
704 | } | |
705 | else { | |
706 | if ( !((*t++ = *s++) & ~31) ) | |
707 | t[-1] = ' '; | |
708 | } | |
a0ed51b3 | 709 | } |
5a34cab7 | 710 | break; |
a0ed51b3 | 711 | } |
5a34cab7 NC |
712 | if (targ_is_utf8 && !item_is_utf8) { |
713 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
714 | *t = '\0'; | |
715 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
716 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 717 | #ifdef EBCDIC |
901017d6 | 718 | const int ch = *t; |
5a34cab7 | 719 | if (iscntrl(ch)) |
78da4d13 | 720 | #else |
5a34cab7 | 721 | if (!(*t & ~31)) |
78da4d13 | 722 | #endif |
5a34cab7 NC |
723 | *t = ' '; |
724 | } | |
725 | break; | |
78da4d13 | 726 | } |
5a34cab7 | 727 | while (arg--) { |
9d116dd7 | 728 | #ifdef EBCDIC |
901017d6 | 729 | const int ch = *t++ = *s++; |
5a34cab7 | 730 | if (iscntrl(ch)) |
a0d0e21e | 731 | #else |
5a34cab7 | 732 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 733 | #endif |
5a34cab7 NC |
734 | t[-1] = ' '; |
735 | } | |
736 | break; | |
a0d0e21e | 737 | } |
a0d0e21e LW |
738 | |
739 | case FF_CHOP: | |
5a34cab7 NC |
740 | { |
741 | const char *s = chophere; | |
742 | if (chopspace) { | |
af68e756 | 743 | while (isSPACE(*s)) |
5a34cab7 NC |
744 | s++; |
745 | } | |
746 | sv_chop(sv,s); | |
747 | SvSETMAGIC(sv); | |
748 | break; | |
a0d0e21e | 749 | } |
a0d0e21e | 750 | |
a1b95068 WL |
751 | case FF_LINESNGL: |
752 | chopspace = 0; | |
753 | oneline = TRUE; | |
754 | goto ff_line; | |
a0d0e21e | 755 | case FF_LINEGLOB: |
a1b95068 WL |
756 | oneline = FALSE; |
757 | ff_line: | |
5a34cab7 NC |
758 | { |
759 | const char *s = item = SvPV_const(sv, len); | |
760 | itemsize = len; | |
761 | if ((item_is_utf8 = DO_UTF8(sv))) | |
762 | itemsize = sv_len_utf8(sv); | |
763 | if (itemsize) { | |
764 | bool chopped = FALSE; | |
765 | const char *const send = s + len; | |
766 | gotsome = TRUE; | |
767 | chophere = s + itemsize; | |
768 | while (s < send) { | |
769 | if (*s++ == '\n') { | |
770 | if (oneline) { | |
771 | chopped = TRUE; | |
772 | chophere = s; | |
773 | break; | |
774 | } else { | |
775 | if (s == send) { | |
776 | itemsize--; | |
777 | chopped = TRUE; | |
778 | } else | |
779 | lines++; | |
780 | } | |
1bd51a4c | 781 | } |
a0d0e21e | 782 | } |
5a34cab7 NC |
783 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
784 | if (targ_is_utf8) | |
785 | SvUTF8_on(PL_formtarget); | |
786 | if (oneline) { | |
787 | SvCUR_set(sv, chophere - item); | |
788 | sv_catsv(PL_formtarget, sv); | |
789 | SvCUR_set(sv, itemsize); | |
790 | } else | |
791 | sv_catsv(PL_formtarget, sv); | |
792 | if (chopped) | |
793 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) - 1); | |
794 | SvGROW(PL_formtarget, SvCUR(PL_formtarget) + fudge + 1); | |
795 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); | |
796 | if (item_is_utf8) | |
797 | targ_is_utf8 = TRUE; | |
a0d0e21e | 798 | } |
5a34cab7 | 799 | break; |
a0d0e21e | 800 | } |
a0d0e21e | 801 | |
a1b95068 WL |
802 | case FF_0DECIMAL: |
803 | arg = *fpc++; | |
804 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
805 | fmt = (const char *) |
806 | ((arg & 256) ? | |
807 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 808 | #else |
10edeb5d JH |
809 | fmt = (const char *) |
810 | ((arg & 256) ? | |
811 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
812 | #endif |
813 | goto ff_dec; | |
a0d0e21e | 814 | case FF_DECIMAL: |
a0d0e21e | 815 | arg = *fpc++; |
65202027 | 816 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
817 | fmt = (const char *) |
818 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 819 | #else |
10edeb5d JH |
820 | fmt = (const char *) |
821 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 822 | #endif |
a1b95068 | 823 | ff_dec: |
784707d5 JP |
824 | /* If the field is marked with ^ and the value is undefined, |
825 | blank it out. */ | |
784707d5 JP |
826 | if ((arg & 512) && !SvOK(sv)) { |
827 | arg = fieldsize; | |
828 | while (arg--) | |
829 | *t++ = ' '; | |
830 | break; | |
831 | } | |
832 | gotsome = TRUE; | |
833 | value = SvNV(sv); | |
a1b95068 | 834 | /* overflow evidence */ |
bfed75c6 | 835 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
836 | arg = fieldsize; |
837 | while (arg--) | |
838 | *t++ = '#'; | |
839 | break; | |
840 | } | |
784707d5 JP |
841 | /* Formats aren't yet marked for locales, so assume "yes". */ |
842 | { | |
843 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 844 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
845 | RESTORE_NUMERIC_STANDARD(); |
846 | } | |
847 | t += fieldsize; | |
848 | break; | |
a1b95068 | 849 | |
a0d0e21e LW |
850 | case FF_NEWLINE: |
851 | f++; | |
852 | while (t-- > linemark && *t == ' ') ; | |
853 | t++; | |
854 | *t++ = '\n'; | |
855 | break; | |
856 | ||
857 | case FF_BLANK: | |
858 | arg = *fpc++; | |
859 | if (gotsome) { | |
860 | if (arg) { /* repeat until fields exhausted? */ | |
861 | *t = '\0'; | |
b15aece3 | 862 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 863 | lines += FmLINES(PL_formtarget); |
a0d0e21e LW |
864 | if (lines == 200) { |
865 | arg = t - linemark; | |
866 | if (strnEQ(linemark, linemark - arg, arg)) | |
cea2e8a9 | 867 | DIE(aTHX_ "Runaway format"); |
a0d0e21e | 868 | } |
1bd51a4c IH |
869 | if (targ_is_utf8) |
870 | SvUTF8_on(PL_formtarget); | |
3280af22 | 871 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
872 | SP = ORIGMARK; |
873 | RETURNOP(cLISTOP->op_first); | |
874 | } | |
875 | } | |
876 | else { | |
877 | t = linemark; | |
878 | lines--; | |
879 | } | |
880 | break; | |
881 | ||
882 | case FF_MORE: | |
5a34cab7 NC |
883 | { |
884 | const char *s = chophere; | |
885 | const char *send = item + len; | |
886 | if (chopspace) { | |
af68e756 | 887 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 888 | s++; |
a0d0e21e | 889 | } |
5a34cab7 NC |
890 | if (s < send) { |
891 | char *s1; | |
892 | arg = fieldsize - itemsize; | |
893 | if (arg) { | |
894 | fieldsize -= arg; | |
895 | while (arg-- > 0) | |
896 | *t++ = ' '; | |
897 | } | |
898 | s1 = t - 3; | |
899 | if (strnEQ(s1," ",3)) { | |
900 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
901 | s1--; | |
902 | } | |
903 | *s1++ = '.'; | |
904 | *s1++ = '.'; | |
905 | *s1++ = '.'; | |
a0d0e21e | 906 | } |
5a34cab7 | 907 | break; |
a0d0e21e | 908 | } |
a0d0e21e LW |
909 | case FF_END: |
910 | *t = '\0'; | |
b15aece3 | 911 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
912 | if (targ_is_utf8) |
913 | SvUTF8_on(PL_formtarget); | |
3280af22 | 914 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
915 | SP = ORIGMARK; |
916 | RETPUSHYES; | |
917 | } | |
918 | } | |
919 | } | |
920 | ||
921 | PP(pp_grepstart) | |
922 | { | |
27da23d5 | 923 | dVAR; dSP; |
a0d0e21e LW |
924 | SV *src; |
925 | ||
3280af22 | 926 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 927 | (void)POPMARK; |
54310121 | 928 | if (GIMME_V == G_SCALAR) |
0b024f31 | 929 | XPUSHs(sv_2mortal(newSViv(0))); |
533c011a | 930 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 931 | } |
3280af22 | 932 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
933 | pp_pushmark(); /* push dst */ |
934 | pp_pushmark(); /* push src */ | |
a0d0e21e LW |
935 | ENTER; /* enter outer scope */ |
936 | ||
937 | SAVETMPS; | |
59f00321 RGS |
938 | if (PL_op->op_private & OPpGREP_LEX) |
939 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
940 | else | |
941 | SAVE_DEFSV; | |
a0d0e21e | 942 | ENTER; /* enter inner scope */ |
7766f137 | 943 | SAVEVPTR(PL_curpm); |
a0d0e21e | 944 | |
3280af22 | 945 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 946 | SvTEMP_off(src); |
59f00321 RGS |
947 | if (PL_op->op_private & OPpGREP_LEX) |
948 | PAD_SVl(PL_op->op_targ) = src; | |
949 | else | |
950 | DEFSV = src; | |
a0d0e21e LW |
951 | |
952 | PUTBACK; | |
533c011a | 953 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 954 | pp_pushmark(); /* push top */ |
533c011a | 955 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
956 | } |
957 | ||
a0d0e21e LW |
958 | PP(pp_mapwhile) |
959 | { | |
27da23d5 | 960 | dVAR; dSP; |
f54cb97a | 961 | const I32 gimme = GIMME_V; |
544f3153 | 962 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
963 | I32 count; |
964 | I32 shift; | |
965 | SV** src; | |
ac27b0f5 | 966 | SV** dst; |
a0d0e21e | 967 | |
544f3153 | 968 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 969 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
970 | |
971 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 972 | if (items && gimme != G_VOID) { |
544f3153 GS |
973 | /* might need to make room back there first */ |
974 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
975 | /* XXX this implementation is very pessimal because the stack | |
976 | * is repeatedly extended for every set of items. Is possible | |
977 | * to do this without any stack extension or copying at all | |
978 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 979 | * (like foreach does). --gsar */ |
544f3153 GS |
980 | |
981 | /* everything in the stack after the destination list moves | |
982 | * towards the end the stack by the amount of room needed */ | |
983 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
984 | ||
985 | /* items to shift up (accounting for the moved source pointer) */ | |
986 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
987 | |
988 | /* This optimization is by Ben Tilly and it does | |
989 | * things differently from what Sarathy (gsar) | |
990 | * is describing. The downside of this optimization is | |
991 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
992 | * to the Perl stack, but on the other hand this | |
993 | * shouldn't be a problem. If Sarathy's idea gets | |
994 | * implemented, this optimization should become | |
995 | * irrelevant. --jhi */ | |
996 | if (shift < count) | |
997 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 998 | |
924508f0 GS |
999 | EXTEND(SP,shift); |
1000 | src = SP; | |
1001 | dst = (SP += shift); | |
3280af22 NIS |
1002 | PL_markstack_ptr[-1] += shift; |
1003 | *PL_markstack_ptr += shift; | |
544f3153 | 1004 | while (count--) |
a0d0e21e LW |
1005 | *dst-- = *src--; |
1006 | } | |
544f3153 | 1007 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1008 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1009 | if (gimme == G_ARRAY) { |
1010 | while (items-- > 0) | |
1011 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1012 | } | |
bfed75c6 | 1013 | else { |
22023b26 TP |
1014 | /* scalar context: we don't care about which values map returns |
1015 | * (we use undef here). And so we certainly don't want to do mortal | |
1016 | * copies of meaningless values. */ | |
1017 | while (items-- > 0) { | |
b988aa42 | 1018 | (void)POPs; |
22023b26 TP |
1019 | *dst-- = &PL_sv_undef; |
1020 | } | |
1021 | } | |
a0d0e21e LW |
1022 | } |
1023 | LEAVE; /* exit inner scope */ | |
1024 | ||
1025 | /* All done yet? */ | |
3280af22 | 1026 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1027 | |
1028 | (void)POPMARK; /* pop top */ | |
1029 | LEAVE; /* exit outer scope */ | |
1030 | (void)POPMARK; /* pop src */ | |
3280af22 | 1031 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1032 | (void)POPMARK; /* pop dst */ |
3280af22 | 1033 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1034 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1035 | if (PL_op->op_private & OPpGREP_LEX) { |
1036 | SV* sv = sv_newmortal(); | |
1037 | sv_setiv(sv, items); | |
1038 | PUSHs(sv); | |
1039 | } | |
1040 | else { | |
1041 | dTARGET; | |
1042 | XPUSHi(items); | |
1043 | } | |
a0d0e21e | 1044 | } |
54310121 | 1045 | else if (gimme == G_ARRAY) |
1046 | SP += items; | |
a0d0e21e LW |
1047 | RETURN; |
1048 | } | |
1049 | else { | |
1050 | SV *src; | |
1051 | ||
1052 | ENTER; /* enter inner scope */ | |
7766f137 | 1053 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1054 | |
544f3153 | 1055 | /* set $_ to the new source item */ |
3280af22 | 1056 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1057 | SvTEMP_off(src); |
59f00321 RGS |
1058 | if (PL_op->op_private & OPpGREP_LEX) |
1059 | PAD_SVl(PL_op->op_targ) = src; | |
1060 | else | |
1061 | DEFSV = src; | |
a0d0e21e LW |
1062 | |
1063 | RETURNOP(cLOGOP->op_other); | |
1064 | } | |
1065 | } | |
1066 | ||
a0d0e21e LW |
1067 | /* Range stuff. */ |
1068 | ||
1069 | PP(pp_range) | |
1070 | { | |
97aff369 | 1071 | dVAR; |
a0d0e21e | 1072 | if (GIMME == G_ARRAY) |
1a67a97c | 1073 | return NORMAL; |
538573f7 | 1074 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1075 | return cLOGOP->op_other; |
538573f7 | 1076 | else |
1a67a97c | 1077 | return NORMAL; |
a0d0e21e LW |
1078 | } |
1079 | ||
1080 | PP(pp_flip) | |
1081 | { | |
97aff369 | 1082 | dVAR; |
39644a26 | 1083 | dSP; |
a0d0e21e LW |
1084 | |
1085 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1086 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1087 | } |
1088 | else { | |
1089 | dTOPss; | |
44f8325f | 1090 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1091 | int flip = 0; |
790090df | 1092 | |
bfed75c6 | 1093 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1094 | if (GvIO(PL_last_in_gv)) { |
1095 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1096 | } | |
1097 | else { | |
fafc274c | 1098 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1099 | if (gv && GvSV(gv)) |
1100 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1101 | } |
bfed75c6 AL |
1102 | } else { |
1103 | flip = SvTRUE(sv); | |
1104 | } | |
1105 | if (flip) { | |
a0d0e21e | 1106 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1107 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1108 | sv_setiv(targ, 1); |
3e3baf6d | 1109 | SETs(targ); |
a0d0e21e LW |
1110 | RETURN; |
1111 | } | |
1112 | else { | |
1113 | sv_setiv(targ, 0); | |
924508f0 | 1114 | SP--; |
1a67a97c | 1115 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1116 | } |
1117 | } | |
c69006e4 | 1118 | sv_setpvn(TARG, "", 0); |
a0d0e21e LW |
1119 | SETs(targ); |
1120 | RETURN; | |
1121 | } | |
1122 | } | |
1123 | ||
8e9bbdb9 RGS |
1124 | /* This code tries to decide if "$left .. $right" should use the |
1125 | magical string increment, or if the range is numeric (we make | |
1126 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1127 | ||
1128 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1129 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1130 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1131 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1132 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1133 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1134 | |
a0d0e21e LW |
1135 | PP(pp_flop) |
1136 | { | |
97aff369 | 1137 | dVAR; dSP; |
a0d0e21e LW |
1138 | |
1139 | if (GIMME == G_ARRAY) { | |
1140 | dPOPPOPssrl; | |
86cb7173 | 1141 | |
5b295bef RD |
1142 | SvGETMAGIC(left); |
1143 | SvGETMAGIC(right); | |
a0d0e21e | 1144 | |
8e9bbdb9 | 1145 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1146 | register IV i, j; |
1147 | IV max; | |
4fe3f0fa MHM |
1148 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1149 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1150 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1151 | i = SvIV(left); |
1152 | max = SvIV(right); | |
bbce6d69 | 1153 | if (max >= i) { |
c1ab3db2 AK |
1154 | j = max - i + 1; |
1155 | EXTEND_MORTAL(j); | |
1156 | EXTEND(SP, j); | |
bbce6d69 | 1157 | } |
c1ab3db2 AK |
1158 | else |
1159 | j = 0; | |
1160 | while (j--) { | |
901017d6 | 1161 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1162 | PUSHs(sv); |
1163 | } | |
1164 | } | |
1165 | else { | |
44f8325f | 1166 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1167 | STRLEN len; |
823a54a3 | 1168 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1169 | |
901017d6 | 1170 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1171 | SvPV_force_nolen(sv); |
89ea2908 | 1172 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1173 | XPUSHs(sv); |
b15aece3 | 1174 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1175 | break; |
a0d0e21e LW |
1176 | sv = sv_2mortal(newSVsv(sv)); |
1177 | sv_inc(sv); | |
1178 | } | |
a0d0e21e LW |
1179 | } |
1180 | } | |
1181 | else { | |
1182 | dTOPss; | |
901017d6 | 1183 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1184 | int flop = 0; |
a0d0e21e | 1185 | sv_inc(targ); |
4e3399f9 YST |
1186 | |
1187 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1188 | if (GvIO(PL_last_in_gv)) { | |
1189 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1190 | } | |
1191 | else { | |
fafc274c | 1192 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1193 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1194 | } | |
1195 | } | |
1196 | else { | |
1197 | flop = SvTRUE(sv); | |
1198 | } | |
1199 | ||
1200 | if (flop) { | |
a0d0e21e | 1201 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1202 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1203 | } |
1204 | SETs(targ); | |
1205 | } | |
1206 | ||
1207 | RETURN; | |
1208 | } | |
1209 | ||
1210 | /* Control. */ | |
1211 | ||
27da23d5 | 1212 | static const char * const context_name[] = { |
515afda2 NC |
1213 | "pseudo-block", |
1214 | "subroutine", | |
1215 | "eval", | |
1216 | "loop", | |
1217 | "substitution", | |
1218 | "block", | |
0d863452 RH |
1219 | "format", |
1220 | "given", | |
1221 | "when" | |
515afda2 NC |
1222 | }; |
1223 | ||
76e3520e | 1224 | STATIC I32 |
06b5626a | 1225 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1226 | { |
97aff369 | 1227 | dVAR; |
a0d0e21e | 1228 | register I32 i; |
a0d0e21e LW |
1229 | |
1230 | for (i = cxstack_ix; i >= 0; i--) { | |
901017d6 | 1231 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1232 | switch (CxTYPE(cx)) { |
a0d0e21e | 1233 | case CXt_SUBST: |
a0d0e21e | 1234 | case CXt_SUB: |
7766f137 | 1235 | case CXt_FORMAT: |
a0d0e21e | 1236 | case CXt_EVAL: |
0a753a76 | 1237 | case CXt_NULL: |
0d863452 RH |
1238 | case CXt_GIVEN: |
1239 | case CXt_WHEN: | |
e476b1b5 | 1240 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1241 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1242 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1243 | if (CxTYPE(cx) == CXt_NULL) | |
1244 | return -1; | |
1245 | break; | |
a0d0e21e | 1246 | case CXt_LOOP: |
901017d6 | 1247 | if ( !cx->blk_loop.label || strNE(label, cx->blk_loop.label) ) { |
cea2e8a9 | 1248 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
68dc0745 | 1249 | (long)i, cx->blk_loop.label)); |
a0d0e21e LW |
1250 | continue; |
1251 | } | |
cea2e8a9 | 1252 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e LW |
1253 | return i; |
1254 | } | |
1255 | } | |
1256 | return i; | |
1257 | } | |
1258 | ||
0d863452 RH |
1259 | |
1260 | ||
e50aee73 | 1261 | I32 |
864dbfa3 | 1262 | Perl_dowantarray(pTHX) |
e50aee73 | 1263 | { |
97aff369 | 1264 | dVAR; |
f54cb97a | 1265 | const I32 gimme = block_gimme(); |
54310121 | 1266 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1267 | } | |
1268 | ||
1269 | I32 | |
864dbfa3 | 1270 | Perl_block_gimme(pTHX) |
54310121 | 1271 | { |
97aff369 | 1272 | dVAR; |
06b5626a | 1273 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1274 | if (cxix < 0) |
46fc3d4c | 1275 | return G_VOID; |
e50aee73 | 1276 | |
54310121 | 1277 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1278 | case G_VOID: |
1279 | return G_VOID; | |
54310121 | 1280 | case G_SCALAR: |
e50aee73 | 1281 | return G_SCALAR; |
54310121 | 1282 | case G_ARRAY: |
1283 | return G_ARRAY; | |
1284 | default: | |
cea2e8a9 | 1285 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1286 | /* NOTREACHED */ |
1287 | return 0; | |
54310121 | 1288 | } |
e50aee73 AD |
1289 | } |
1290 | ||
78f9721b SM |
1291 | I32 |
1292 | Perl_is_lvalue_sub(pTHX) | |
1293 | { | |
97aff369 | 1294 | dVAR; |
06b5626a | 1295 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1296 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1297 | ||
cc8d50a7 NC |
1298 | if (cxstack[cxix].blk_sub.lval && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1299 | return cxstack[cxix].blk_sub.lval; | |
78f9721b SM |
1300 | else |
1301 | return 0; | |
1302 | } | |
1303 | ||
76e3520e | 1304 | STATIC I32 |
901017d6 | 1305 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1306 | { |
97aff369 | 1307 | dVAR; |
a0d0e21e | 1308 | I32 i; |
a0d0e21e | 1309 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1310 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1311 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1312 | default: |
1313 | continue; | |
1314 | case CXt_EVAL: | |
1315 | case CXt_SUB: | |
7766f137 | 1316 | case CXt_FORMAT: |
cea2e8a9 | 1317 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1318 | return i; |
1319 | } | |
1320 | } | |
1321 | return i; | |
1322 | } | |
1323 | ||
76e3520e | 1324 | STATIC I32 |
cea2e8a9 | 1325 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1326 | { |
97aff369 | 1327 | dVAR; |
a0d0e21e | 1328 | I32 i; |
a0d0e21e | 1329 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1330 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1331 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1332 | default: |
1333 | continue; | |
1334 | case CXt_EVAL: | |
cea2e8a9 | 1335 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1336 | return i; |
1337 | } | |
1338 | } | |
1339 | return i; | |
1340 | } | |
1341 | ||
76e3520e | 1342 | STATIC I32 |
cea2e8a9 | 1343 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1344 | { |
97aff369 | 1345 | dVAR; |
a0d0e21e | 1346 | I32 i; |
a0d0e21e | 1347 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1348 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1349 | switch (CxTYPE(cx)) { |
a0d0e21e | 1350 | case CXt_SUBST: |
a0d0e21e | 1351 | case CXt_SUB: |
7766f137 | 1352 | case CXt_FORMAT: |
a0d0e21e | 1353 | case CXt_EVAL: |
0a753a76 | 1354 | case CXt_NULL: |
e476b1b5 | 1355 | if (ckWARN(WARN_EXITING)) |
515afda2 NC |
1356 | Perl_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1357 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
1358 | if ((CxTYPE(cx)) == CXt_NULL) | |
1359 | return -1; | |
1360 | break; | |
a0d0e21e | 1361 | case CXt_LOOP: |
cea2e8a9 | 1362 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1363 | return i; |
1364 | } | |
1365 | } | |
1366 | return i; | |
1367 | } | |
1368 | ||
0d863452 RH |
1369 | STATIC I32 |
1370 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1371 | { | |
97aff369 | 1372 | dVAR; |
0d863452 RH |
1373 | I32 i; |
1374 | for (i = startingblock; i >= 0; i--) { | |
1375 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1376 | switch (CxTYPE(cx)) { | |
1377 | default: | |
1378 | continue; | |
1379 | case CXt_GIVEN: | |
1380 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1381 | return i; | |
1382 | case CXt_LOOP: | |
1383 | if (CxFOREACHDEF(cx)) { | |
1384 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1385 | return i; | |
1386 | } | |
1387 | } | |
1388 | } | |
1389 | return i; | |
1390 | } | |
1391 | ||
1392 | STATIC I32 | |
1393 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1394 | { | |
97aff369 | 1395 | dVAR; |
0d863452 RH |
1396 | I32 i; |
1397 | for (i = startingblock; i >= 0; i--) { | |
1398 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1399 | switch (CxTYPE(cx)) { | |
1400 | default: | |
1401 | continue; | |
1402 | case CXt_WHEN: | |
1403 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1404 | return i; | |
1405 | } | |
1406 | } | |
1407 | return i; | |
1408 | } | |
1409 | ||
a0d0e21e | 1410 | void |
864dbfa3 | 1411 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1412 | { |
97aff369 | 1413 | dVAR; |
a0d0e21e LW |
1414 | I32 optype; |
1415 | ||
1416 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1417 | SV *sv; |
06b5626a | 1418 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1419 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1420 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1421 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1422 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1423 | case CXt_SUBST: |
1424 | POPSUBST(cx); | |
1425 | continue; /* not break */ | |
a0d0e21e | 1426 | case CXt_SUB: |
b0d9ce38 GS |
1427 | POPSUB(cx,sv); |
1428 | LEAVESUB(sv); | |
a0d0e21e LW |
1429 | break; |
1430 | case CXt_EVAL: | |
1431 | POPEVAL(cx); | |
1432 | break; | |
1433 | case CXt_LOOP: | |
1434 | POPLOOP(cx); | |
1435 | break; | |
0a753a76 | 1436 | case CXt_NULL: |
a0d0e21e | 1437 | break; |
7766f137 GS |
1438 | case CXt_FORMAT: |
1439 | POPFORMAT(cx); | |
1440 | break; | |
a0d0e21e | 1441 | } |
c90c0ff4 | 1442 | cxstack_ix--; |
a0d0e21e | 1443 | } |
1b6737cc | 1444 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1445 | } |
1446 | ||
5a844595 GS |
1447 | void |
1448 | Perl_qerror(pTHX_ SV *err) | |
1449 | { | |
97aff369 | 1450 | dVAR; |
5a844595 GS |
1451 | if (PL_in_eval) |
1452 | sv_catsv(ERRSV, err); | |
1453 | else if (PL_errors) | |
1454 | sv_catsv(PL_errors, err); | |
1455 | else | |
be2597df | 1456 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1457 | if (PL_parser) |
1458 | ++PL_parser->error_count; | |
5a844595 GS |
1459 | } |
1460 | ||
a0d0e21e | 1461 | OP * |
35a4481c | 1462 | Perl_die_where(pTHX_ const char *message, STRLEN msglen) |
a0d0e21e | 1463 | { |
27da23d5 | 1464 | dVAR; |
87582a92 | 1465 | |
3280af22 | 1466 | if (PL_in_eval) { |
a0d0e21e | 1467 | I32 cxix; |
a0d0e21e | 1468 | I32 gimme; |
a0d0e21e | 1469 | |
4e6ea2c3 | 1470 | if (message) { |
faef0170 | 1471 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1472 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1473 | SV * const err = ERRSV; |
c445ea15 | 1474 | const char *e = NULL; |
98eae8f5 | 1475 | if (!SvPOK(err)) |
c69006e4 | 1476 | sv_setpvn(err,"",0); |
98eae8f5 | 1477 | else if (SvCUR(err) >= sizeof(prefix)+msglen-1) { |
0510663f | 1478 | STRLEN len; |
349d4f2f | 1479 | e = SvPV_const(err, len); |
0510663f | 1480 | e += len - msglen; |
98eae8f5 | 1481 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1482 | e = NULL; |
98eae8f5 GS |
1483 | } |
1484 | if (!e) { | |
1485 | SvGROW(err, SvCUR(err)+sizeof(prefix)+msglen); | |
1486 | sv_catpvn(err, prefix, sizeof(prefix)-1); | |
1487 | sv_catpvn(err, message, msglen); | |
e476b1b5 | 1488 | if (ckWARN(WARN_MISC)) { |
504618e9 | 1489 | const STRLEN start = SvCUR(err)-msglen-sizeof(prefix)+1; |
b15aece3 | 1490 | Perl_warner(aTHX_ packWARN(WARN_MISC), SvPVX_const(err)+start); |
4e6ea2c3 | 1491 | } |
4633a7c4 | 1492 | } |
4633a7c4 | 1493 | } |
1aa99e6b | 1494 | else { |
06bf62c7 | 1495 | sv_setpvn(ERRSV, message, msglen); |
1aa99e6b | 1496 | } |
4633a7c4 | 1497 | } |
4e6ea2c3 | 1498 | |
5a844595 GS |
1499 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1500 | && PL_curstackinfo->si_prev) | |
1501 | { | |
bac4b2ad | 1502 | dounwind(-1); |
d3acc0f7 | 1503 | POPSTACK; |
bac4b2ad | 1504 | } |
e336de0d | 1505 | |
a0d0e21e LW |
1506 | if (cxix >= 0) { |
1507 | I32 optype; | |
35a4481c | 1508 | register PERL_CONTEXT *cx; |
901017d6 | 1509 | SV **newsp; |
a0d0e21e LW |
1510 | |
1511 | if (cxix < cxstack_ix) | |
1512 | dounwind(cxix); | |
1513 | ||
3280af22 | 1514 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1515 | if (CxTYPE(cx) != CXt_EVAL) { |
16869676 | 1516 | if (!message) |
349d4f2f | 1517 | message = SvPVx_const(ERRSV, msglen); |
10edeb5d | 1518 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1519 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1520 | my_exit(1); |
1521 | } | |
1522 | POPEVAL(cx); | |
1523 | ||
1524 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1525 | *++newsp = &PL_sv_undef; |
1526 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1527 | |
1528 | LEAVE; | |
748a9306 | 1529 | |
7fb6a879 GS |
1530 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1531 | * XXX it might be better to find a way to avoid messing with | |
1532 | * PL_curcop in save_re_context() instead, but this is a more | |
1533 | * minimal fix --GSAR */ | |
1534 | PL_curcop = cx->blk_oldcop; | |
1535 | ||
7a2e2cd6 | 1536 | if (optype == OP_REQUIRE) { |
44f8325f | 1537 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1538 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1539 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1540 | &PL_sv_undef, 0); |
5a844595 GS |
1541 | DIE(aTHX_ "%sCompilation failed in require", |
1542 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1543 | } |
f39bc417 DM |
1544 | assert(CxTYPE(cx) == CXt_EVAL); |
1545 | return cx->blk_eval.retop; | |
a0d0e21e LW |
1546 | } |
1547 | } | |
9cc2fdd3 | 1548 | if (!message) |
349d4f2f | 1549 | message = SvPVx_const(ERRSV, msglen); |
87582a92 | 1550 | |
7ff03255 | 1551 | write_to_stderr(message, msglen); |
f86702cc | 1552 | my_failure_exit(); |
1553 | /* NOTREACHED */ | |
a0d0e21e LW |
1554 | return 0; |
1555 | } | |
1556 | ||
1557 | PP(pp_xor) | |
1558 | { | |
97aff369 | 1559 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1560 | if (SvTRUE(left) != SvTRUE(right)) |
1561 | RETSETYES; | |
1562 | else | |
1563 | RETSETNO; | |
1564 | } | |
1565 | ||
a0d0e21e LW |
1566 | PP(pp_caller) |
1567 | { | |
97aff369 | 1568 | dVAR; |
39644a26 | 1569 | dSP; |
a0d0e21e | 1570 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1571 | register const PERL_CONTEXT *cx; |
1572 | register const PERL_CONTEXT *ccstack = cxstack; | |
1573 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1574 | I32 gimme; |
06b5626a | 1575 | const char *stashname; |
a0d0e21e LW |
1576 | I32 count = 0; |
1577 | ||
1578 | if (MAXARG) | |
1579 | count = POPi; | |
27d41816 | 1580 | |
a0d0e21e | 1581 | for (;;) { |
2c375eb9 GS |
1582 | /* we may be in a higher stacklevel, so dig down deeper */ |
1583 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1584 | top_si = top_si->si_prev; | |
1585 | ccstack = top_si->si_cxstack; | |
1586 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1587 | } | |
a0d0e21e | 1588 | if (cxix < 0) { |
27d41816 DM |
1589 | if (GIMME != G_ARRAY) { |
1590 | EXTEND(SP, 1); | |
a0d0e21e | 1591 | RETPUSHUNDEF; |
27d41816 | 1592 | } |
a0d0e21e LW |
1593 | RETURN; |
1594 | } | |
f2a7f298 DG |
1595 | /* caller() should not report the automatic calls to &DB::sub */ |
1596 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1597 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1598 | count++; |
1599 | if (!count--) | |
1600 | break; | |
2c375eb9 | 1601 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1602 | } |
2c375eb9 GS |
1603 | |
1604 | cx = &ccstack[cxix]; | |
7766f137 | 1605 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1606 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1607 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1608 | field below is defined for any cx. */ |
f2a7f298 DG |
1609 | /* caller() should not report the automatic calls to &DB::sub */ |
1610 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1611 | cx = &ccstack[dbcxix]; |
06a5b730 | 1612 | } |
1613 | ||
ed094faf | 1614 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1615 | if (GIMME != G_ARRAY) { |
27d41816 | 1616 | EXTEND(SP, 1); |
ed094faf | 1617 | if (!stashname) |
3280af22 | 1618 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1619 | else { |
1620 | dTARGET; | |
ed094faf | 1621 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1622 | PUSHs(TARG); |
1623 | } | |
a0d0e21e LW |
1624 | RETURN; |
1625 | } | |
a0d0e21e | 1626 | |
b3ca2e83 | 1627 | EXTEND(SP, 11); |
27d41816 | 1628 | |
ed094faf | 1629 | if (!stashname) |
3280af22 | 1630 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1631 | else |
ed094faf | 1632 | PUSHs(sv_2mortal(newSVpv(stashname, 0))); |
248c2a4d | 1633 | PUSHs(sv_2mortal(newSVpv(OutCopFILE(cx->blk_oldcop), 0))); |
57843af0 | 1634 | PUSHs(sv_2mortal(newSViv((I32)CopLINE(cx->blk_oldcop)))); |
a0d0e21e LW |
1635 | if (!MAXARG) |
1636 | RETURN; | |
7766f137 | 1637 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1638 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1639 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1640 | if (isGV(cvgv)) { |
561b68a9 | 1641 | SV * const sv = newSV(0); |
c445ea15 | 1642 | gv_efullname3(sv, cvgv, NULL); |
07b8c804 | 1643 | PUSHs(sv_2mortal(sv)); |
cc8d50a7 | 1644 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 RGS |
1645 | } |
1646 | else { | |
396482e1 | 1647 | PUSHs(sv_2mortal(newSVpvs("(unknown)"))); |
cc8d50a7 | 1648 | PUSHs(sv_2mortal(newSViv((I32)cx->blk_sub.hasargs))); |
07b8c804 | 1649 | } |
a0d0e21e LW |
1650 | } |
1651 | else { | |
396482e1 | 1652 | PUSHs(sv_2mortal(newSVpvs("(eval)"))); |
a0d0e21e LW |
1653 | PUSHs(sv_2mortal(newSViv(0))); |
1654 | } | |
54310121 | 1655 | gimme = (I32)cx->blk_gimme; |
1656 | if (gimme == G_VOID) | |
3280af22 | 1657 | PUSHs(&PL_sv_undef); |
54310121 | 1658 | else |
1659 | PUSHs(sv_2mortal(newSViv(gimme & G_ARRAY))); | |
6b35e009 | 1660 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1661 | /* eval STRING */ |
06a5b730 | 1662 | if (cx->blk_eval.old_op_type == OP_ENTEREVAL) { |
4633a7c4 | 1663 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1664 | PUSHs(&PL_sv_no); |
0f79a09d | 1665 | } |
811a4de9 | 1666 | /* require */ |
0f79a09d GS |
1667 | else if (cx->blk_eval.old_namesv) { |
1668 | PUSHs(sv_2mortal(newSVsv(cx->blk_eval.old_namesv))); | |
3280af22 | 1669 | PUSHs(&PL_sv_yes); |
06a5b730 | 1670 | } |
811a4de9 GS |
1671 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1672 | else { | |
1673 | PUSHs(&PL_sv_undef); | |
1674 | PUSHs(&PL_sv_undef); | |
1675 | } | |
4633a7c4 | 1676 | } |
a682de96 GS |
1677 | else { |
1678 | PUSHs(&PL_sv_undef); | |
1679 | PUSHs(&PL_sv_undef); | |
1680 | } | |
cc8d50a7 | 1681 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs |
ed094faf | 1682 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1683 | { |
66a1b24b AL |
1684 | AV * const ary = cx->blk_sub.argarray; |
1685 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1686 | |
3280af22 | 1687 | if (!PL_dbargs) { |
71315bf2 | 1688 | GV* const tmpgv = gv_fetchpvs("DB::args", GV_ADD, SVt_PVAV); |
0bd48802 | 1689 | PL_dbargs = GvAV(gv_AVadd(tmpgv)); |
a5f75d66 | 1690 | GvMULTI_on(tmpgv); |
3ddcf04c | 1691 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1692 | } |
1693 | ||
3280af22 NIS |
1694 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1695 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1696 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1697 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1698 | } |
f3aa04c2 GS |
1699 | /* XXX only hints propagated via op_private are currently |
1700 | * visible (others are not easily accessible, since they | |
1701 | * use the global PL_hints) */ | |
623e6609 | 1702 | PUSHs(sv_2mortal(newSViv(CopHINTS_get(cx->blk_oldcop)))); |
e476b1b5 GS |
1703 | { |
1704 | SV * mask ; | |
72dc9ed5 | 1705 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1706 | |
ac27b0f5 | 1707 | if (old_warnings == pWARN_NONE || |
114bafba | 1708 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1709 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1710 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1711 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1712 | /* Get the bit mask for $warnings::Bits{all}, because | |
1713 | * it could have been extended by warnings::register */ | |
1714 | SV **bits_all; | |
0bd48802 | 1715 | HV * const bits = get_hv("warnings::Bits", FALSE); |
017a3ce5 | 1716 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1717 | mask = newSVsv(*bits_all); |
1718 | } | |
1719 | else { | |
1720 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1721 | } | |
1722 | } | |
e476b1b5 | 1723 | else |
72dc9ed5 | 1724 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
e476b1b5 GS |
1725 | PUSHs(sv_2mortal(mask)); |
1726 | } | |
b3ca2e83 | 1727 | |
c28fe1ec | 1728 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1729 | sv_2mortal(newRV_noinc( |
c28fe1ec NC |
1730 | (SV*)Perl_refcounted_he_chain_2hv(aTHX_ |
1731 | cx->blk_oldcop->cop_hints_hash))) | |
b3ca2e83 | 1732 | : &PL_sv_undef); |
a0d0e21e LW |
1733 | RETURN; |
1734 | } | |
1735 | ||
a0d0e21e LW |
1736 | PP(pp_reset) |
1737 | { | |
97aff369 | 1738 | dVAR; |
39644a26 | 1739 | dSP; |
10edeb5d | 1740 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1741 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1742 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1743 | RETURN; |
1744 | } | |
1745 | ||
dd2155a4 DM |
1746 | /* like pp_nextstate, but used instead when the debugger is active */ |
1747 | ||
a0d0e21e LW |
1748 | PP(pp_dbstate) |
1749 | { | |
27da23d5 | 1750 | dVAR; |
533c011a | 1751 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1752 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1753 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1754 | FREETMPS; |
1755 | ||
5df8de69 DM |
1756 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1757 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1758 | { |
39644a26 | 1759 | dSP; |
c09156bb | 1760 | register PERL_CONTEXT *cx; |
f54cb97a | 1761 | const I32 gimme = G_ARRAY; |
eb160463 | 1762 | U8 hasargs; |
0bd48802 AL |
1763 | GV * const gv = PL_DBgv; |
1764 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1765 | |
a0d0e21e | 1766 | if (!cv) |
cea2e8a9 | 1767 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1768 | |
aea4f609 DM |
1769 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1770 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1771 | return NORMAL; |
748a9306 | 1772 | |
4633a7c4 LW |
1773 | ENTER; |
1774 | SAVETMPS; | |
1775 | ||
3280af22 | 1776 | SAVEI32(PL_debug); |
55497cff | 1777 | SAVESTACK_POS(); |
3280af22 | 1778 | PL_debug = 0; |
748a9306 | 1779 | hasargs = 0; |
924508f0 | 1780 | SPAGAIN; |
748a9306 | 1781 | |
aed2304a | 1782 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1783 | CvDEPTH(cv)++; |
1784 | PUSHMARK(SP); | |
1785 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1786 | CvDEPTH(cv)--; | |
1787 | FREETMPS; | |
1788 | LEAVE; | |
1789 | return NORMAL; | |
1790 | } | |
1791 | else { | |
1792 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1793 | PUSHSUB_DB(cx); | |
1794 | cx->blk_sub.retop = PL_op->op_next; | |
1795 | CvDEPTH(cv)++; | |
1796 | SAVECOMPPAD(); | |
1797 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1798 | RETURNOP(CvSTART(cv)); | |
1799 | } | |
a0d0e21e LW |
1800 | } |
1801 | else | |
1802 | return NORMAL; | |
1803 | } | |
1804 | ||
a0d0e21e LW |
1805 | PP(pp_enteriter) |
1806 | { | |
27da23d5 | 1807 | dVAR; dSP; dMARK; |
c09156bb | 1808 | register PERL_CONTEXT *cx; |
f54cb97a | 1809 | const I32 gimme = GIMME_V; |
a0d0e21e | 1810 | SV **svp; |
df43650b | 1811 | U16 cxtype = CXt_LOOP | CXp_FOREACH; |
7766f137 GS |
1812 | #ifdef USE_ITHREADS |
1813 | void *iterdata; | |
1814 | #endif | |
a0d0e21e | 1815 | |
4633a7c4 LW |
1816 | ENTER; |
1817 | SAVETMPS; | |
1818 | ||
533c011a | 1819 | if (PL_op->op_targ) { |
14f338dc DM |
1820 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1821 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1822 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1823 | SVs_PADSTALE, SVs_PADSTALE); | |
1824 | } | |
c3564e5c | 1825 | #ifndef USE_ITHREADS |
dd2155a4 | 1826 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
54b9620d | 1827 | SAVESPTR(*svp); |
c3564e5c GS |
1828 | #else |
1829 | SAVEPADSV(PL_op->op_targ); | |
cbfa9890 | 1830 | iterdata = INT2PTR(void*, PL_op->op_targ); |
7766f137 GS |
1831 | cxtype |= CXp_PADVAR; |
1832 | #endif | |
54b9620d MB |
1833 | } |
1834 | else { | |
0bd48802 | 1835 | GV * const gv = (GV*)POPs; |
7766f137 | 1836 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1837 | SAVEGENERICSV(*svp); |
561b68a9 | 1838 | *svp = newSV(0); |
7766f137 GS |
1839 | #ifdef USE_ITHREADS |
1840 | iterdata = (void*)gv; | |
1841 | #endif | |
54b9620d | 1842 | } |
4633a7c4 | 1843 | |
0d863452 RH |
1844 | if (PL_op->op_private & OPpITER_DEF) |
1845 | cxtype |= CXp_FOR_DEF; | |
1846 | ||
a0d0e21e LW |
1847 | ENTER; |
1848 | ||
7766f137 GS |
1849 | PUSHBLOCK(cx, cxtype, SP); |
1850 | #ifdef USE_ITHREADS | |
1851 | PUSHLOOP(cx, iterdata, MARK); | |
1852 | #else | |
a0d0e21e | 1853 | PUSHLOOP(cx, svp, MARK); |
7766f137 | 1854 | #endif |
533c011a | 1855 | if (PL_op->op_flags & OPf_STACKED) { |
44a8e56a | 1856 | cx->blk_loop.iterary = (AV*)SvREFCNT_inc(POPs); |
89ea2908 GA |
1857 | if (SvTYPE(cx->blk_loop.iterary) != SVt_PVAV) { |
1858 | dPOPss; | |
0bd48802 | 1859 | SV * const right = (SV*)cx->blk_loop.iterary; |
984a4bea RD |
1860 | SvGETMAGIC(sv); |
1861 | SvGETMAGIC(right); | |
4fe3f0fa MHM |
1862 | if (RANGE_IS_NUMERIC(sv,right)) { |
1863 | if ((SvOK(sv) && SvNV(sv) < IV_MIN) || | |
1864 | (SvOK(right) && SvNV(right) >= IV_MAX)) | |
076d9a11 MHM |
1865 | DIE(aTHX_ "Range iterator outside integer range"); |
1866 | cx->blk_loop.iterix = SvIV(sv); | |
4fe3f0fa | 1867 | cx->blk_loop.itermax = SvIV(right); |
d4665a05 DM |
1868 | #ifdef DEBUGGING |
1869 | /* for correct -Dstv display */ | |
1870 | cx->blk_oldsp = sp - PL_stack_base; | |
1871 | #endif | |
89ea2908 | 1872 | } |
3f63a782 | 1873 | else { |
89ea2908 | 1874 | cx->blk_loop.iterlval = newSVsv(sv); |
13c5b33c | 1875 | (void) SvPV_force_nolen(cx->blk_loop.iterlval); |
10516c54 | 1876 | (void) SvPV_nolen_const(right); |
3f63a782 | 1877 | } |
89ea2908 | 1878 | } |
ef3e5ea9 | 1879 | else if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1880 | cx->blk_loop.itermax = 0; |
1881 | cx->blk_loop.iterix = AvFILL(cx->blk_loop.iterary) + 1; | |
ef3e5ea9 NC |
1882 | |
1883 | } | |
89ea2908 | 1884 | } |
4633a7c4 | 1885 | else { |
3280af22 NIS |
1886 | cx->blk_loop.iterary = PL_curstack; |
1887 | AvFILLp(PL_curstack) = SP - PL_stack_base; | |
ef3e5ea9 | 1888 | if (PL_op->op_private & OPpITER_REVERSED) { |
6e585ca0 DM |
1889 | cx->blk_loop.itermax = MARK - PL_stack_base + 1; |
1890 | cx->blk_loop.iterix = cx->blk_oldsp + 1; | |
ef3e5ea9 NC |
1891 | } |
1892 | else { | |
1893 | cx->blk_loop.iterix = MARK - PL_stack_base; | |
1894 | } | |
4633a7c4 | 1895 | } |
a0d0e21e LW |
1896 | |
1897 | RETURN; | |
1898 | } | |
1899 | ||
1900 | PP(pp_enterloop) | |
1901 | { | |
27da23d5 | 1902 | dVAR; dSP; |
c09156bb | 1903 | register PERL_CONTEXT *cx; |
f54cb97a | 1904 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
1905 | |
1906 | ENTER; | |
1907 | SAVETMPS; | |
1908 | ENTER; | |
1909 | ||
1910 | PUSHBLOCK(cx, CXt_LOOP, SP); | |
1911 | PUSHLOOP(cx, 0, SP); | |
1912 | ||
1913 | RETURN; | |
1914 | } | |
1915 | ||
1916 | PP(pp_leaveloop) | |
1917 | { | |
27da23d5 | 1918 | dVAR; dSP; |
c09156bb | 1919 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
1920 | I32 gimme; |
1921 | SV **newsp; | |
1922 | PMOP *newpm; | |
1923 | SV **mark; | |
1924 | ||
1925 | POPBLOCK(cx,newpm); | |
3a1b2b9e | 1926 | assert(CxTYPE(cx) == CXt_LOOP); |
4fdae800 | 1927 | mark = newsp; |
a8bba7fa | 1928 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 1929 | |
a1f49e72 | 1930 | TAINT_NOT; |
54310121 | 1931 | if (gimme == G_VOID) |
6f207bd3 | 1932 | NOOP; |
54310121 | 1933 | else if (gimme == G_SCALAR) { |
1934 | if (mark < SP) | |
1935 | *++newsp = sv_mortalcopy(*SP); | |
1936 | else | |
3280af22 | 1937 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
1938 | } |
1939 | else { | |
a1f49e72 | 1940 | while (mark < SP) { |
a0d0e21e | 1941 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
1942 | TAINT_NOT; /* Each item is independent */ |
1943 | } | |
a0d0e21e | 1944 | } |
f86702cc | 1945 | SP = newsp; |
1946 | PUTBACK; | |
1947 | ||
a8bba7fa | 1948 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 1949 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 1950 | |
a0d0e21e LW |
1951 | LEAVE; |
1952 | LEAVE; | |
1953 | ||
f86702cc | 1954 | return NORMAL; |
a0d0e21e LW |
1955 | } |
1956 | ||
1957 | PP(pp_return) | |
1958 | { | |
27da23d5 | 1959 | dVAR; dSP; dMARK; |
c09156bb | 1960 | register PERL_CONTEXT *cx; |
f86702cc | 1961 | bool popsub2 = FALSE; |
b45de488 | 1962 | bool clear_errsv = FALSE; |
a0d0e21e LW |
1963 | I32 gimme; |
1964 | SV **newsp; | |
1965 | PMOP *newpm; | |
1966 | I32 optype = 0; | |
b0d9ce38 | 1967 | SV *sv; |
f39bc417 | 1968 | OP *retop; |
a0d0e21e | 1969 | |
0bd48802 AL |
1970 | const I32 cxix = dopoptosub(cxstack_ix); |
1971 | ||
9850bf21 RH |
1972 | if (cxix < 0) { |
1973 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
1974 | * sort block, which is a CXt_NULL | |
1975 | * not a CXt_SUB */ | |
1976 | dounwind(0); | |
d7507f74 RH |
1977 | PL_stack_base[1] = *PL_stack_sp; |
1978 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
1979 | return 0; |
1980 | } | |
9850bf21 RH |
1981 | else |
1982 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 1983 | } |
a0d0e21e LW |
1984 | if (cxix < cxstack_ix) |
1985 | dounwind(cxix); | |
1986 | ||
d7507f74 RH |
1987 | if (CxMULTICALL(&cxstack[cxix])) { |
1988 | gimme = cxstack[cxix].blk_gimme; | |
1989 | if (gimme == G_VOID) | |
1990 | PL_stack_sp = PL_stack_base; | |
1991 | else if (gimme == G_SCALAR) { | |
1992 | PL_stack_base[1] = *PL_stack_sp; | |
1993 | PL_stack_sp = PL_stack_base + 1; | |
1994 | } | |
9850bf21 | 1995 | return 0; |
d7507f74 | 1996 | } |
9850bf21 | 1997 | |
a0d0e21e | 1998 | POPBLOCK(cx,newpm); |
6b35e009 | 1999 | switch (CxTYPE(cx)) { |
a0d0e21e | 2000 | case CXt_SUB: |
f86702cc | 2001 | popsub2 = TRUE; |
f39bc417 | 2002 | retop = cx->blk_sub.retop; |
5dd42e15 | 2003 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2004 | break; |
2005 | case CXt_EVAL: | |
b45de488 GS |
2006 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2007 | clear_errsv = TRUE; | |
a0d0e21e | 2008 | POPEVAL(cx); |
f39bc417 | 2009 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2010 | if (CxTRYBLOCK(cx)) |
2011 | break; | |
067f92a0 | 2012 | lex_end(); |
748a9306 LW |
2013 | if (optype == OP_REQUIRE && |
2014 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2015 | { | |
54310121 | 2016 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2017 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2018 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 2019 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
748a9306 | 2020 | } |
a0d0e21e | 2021 | break; |
7766f137 GS |
2022 | case CXt_FORMAT: |
2023 | POPFORMAT(cx); | |
f39bc417 | 2024 | retop = cx->blk_sub.retop; |
7766f137 | 2025 | break; |
a0d0e21e | 2026 | default: |
cea2e8a9 | 2027 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2028 | } |
2029 | ||
a1f49e72 | 2030 | TAINT_NOT; |
a0d0e21e | 2031 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2032 | if (MARK < SP) { |
2033 | if (popsub2) { | |
a8bba7fa | 2034 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2035 | if (SvTEMP(TOPs)) { |
2036 | *++newsp = SvREFCNT_inc(*SP); | |
2037 | FREETMPS; | |
2038 | sv_2mortal(*newsp); | |
959e3673 GS |
2039 | } |
2040 | else { | |
2041 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2042 | FREETMPS; |
959e3673 GS |
2043 | *++newsp = sv_mortalcopy(sv); |
2044 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2045 | } |
959e3673 GS |
2046 | } |
2047 | else | |
a29cdaf0 | 2048 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2049 | } |
2050 | else | |
a29cdaf0 | 2051 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2052 | } |
2053 | else | |
3280af22 | 2054 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2055 | } |
54310121 | 2056 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2057 | while (++MARK <= SP) { |
f86702cc | 2058 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2059 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2060 | TAINT_NOT; /* Each item is independent */ |
2061 | } | |
a0d0e21e | 2062 | } |
3280af22 | 2063 | PL_stack_sp = newsp; |
a0d0e21e | 2064 | |
5dd42e15 | 2065 | LEAVE; |
f86702cc | 2066 | /* Stack values are safe: */ |
2067 | if (popsub2) { | |
5dd42e15 | 2068 | cxstack_ix--; |
b0d9ce38 | 2069 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2070 | } |
b0d9ce38 | 2071 | else |
c445ea15 | 2072 | sv = NULL; |
3280af22 | 2073 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2074 | |
b0d9ce38 | 2075 | LEAVESUB(sv); |
b45de488 | 2076 | if (clear_errsv) |
c69006e4 | 2077 | sv_setpvn(ERRSV,"",0); |
f39bc417 | 2078 | return retop; |
a0d0e21e LW |
2079 | } |
2080 | ||
2081 | PP(pp_last) | |
2082 | { | |
27da23d5 | 2083 | dVAR; dSP; |
a0d0e21e | 2084 | I32 cxix; |
c09156bb | 2085 | register PERL_CONTEXT *cx; |
f86702cc | 2086 | I32 pop2 = 0; |
a0d0e21e | 2087 | I32 gimme; |
8772537c | 2088 | I32 optype; |
a0d0e21e LW |
2089 | OP *nextop; |
2090 | SV **newsp; | |
2091 | PMOP *newpm; | |
a8bba7fa | 2092 | SV **mark; |
c445ea15 | 2093 | SV *sv = NULL; |
9d4ba2ae | 2094 | |
a0d0e21e | 2095 | |
533c011a | 2096 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2097 | cxix = dopoptoloop(cxstack_ix); |
2098 | if (cxix < 0) | |
a651a37d | 2099 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2100 | } |
2101 | else { | |
2102 | cxix = dopoptolabel(cPVOP->op_pv); | |
2103 | if (cxix < 0) | |
cea2e8a9 | 2104 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2105 | } |
2106 | if (cxix < cxstack_ix) | |
2107 | dounwind(cxix); | |
2108 | ||
2109 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2110 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2111 | mark = newsp; |
6b35e009 | 2112 | switch (CxTYPE(cx)) { |
a0d0e21e | 2113 | case CXt_LOOP: |
f86702cc | 2114 | pop2 = CXt_LOOP; |
a8bba7fa | 2115 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2116 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2117 | break; |
f86702cc | 2118 | case CXt_SUB: |
f86702cc | 2119 | pop2 = CXt_SUB; |
f39bc417 | 2120 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2121 | break; |
f86702cc | 2122 | case CXt_EVAL: |
2123 | POPEVAL(cx); | |
f39bc417 | 2124 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2125 | break; |
7766f137 GS |
2126 | case CXt_FORMAT: |
2127 | POPFORMAT(cx); | |
f39bc417 | 2128 | nextop = cx->blk_sub.retop; |
7766f137 | 2129 | break; |
a0d0e21e | 2130 | default: |
cea2e8a9 | 2131 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2132 | } |
2133 | ||
a1f49e72 | 2134 | TAINT_NOT; |
a0d0e21e | 2135 | if (gimme == G_SCALAR) { |
f86702cc | 2136 | if (MARK < SP) |
2137 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2138 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2139 | else |
3280af22 | 2140 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2141 | } |
54310121 | 2142 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2143 | while (++MARK <= SP) { |
f86702cc | 2144 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2145 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2146 | TAINT_NOT; /* Each item is independent */ |
2147 | } | |
f86702cc | 2148 | } |
2149 | SP = newsp; | |
2150 | PUTBACK; | |
2151 | ||
5dd42e15 DM |
2152 | LEAVE; |
2153 | cxstack_ix--; | |
f86702cc | 2154 | /* Stack values are safe: */ |
2155 | switch (pop2) { | |
2156 | case CXt_LOOP: | |
a8bba7fa | 2157 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2158 | LEAVE; |
f86702cc | 2159 | break; |
2160 | case CXt_SUB: | |
b0d9ce38 | 2161 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2162 | break; |
a0d0e21e | 2163 | } |
3280af22 | 2164 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2165 | |
b0d9ce38 | 2166 | LEAVESUB(sv); |
9d4ba2ae AL |
2167 | PERL_UNUSED_VAR(optype); |
2168 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2169 | return nextop; |
a0d0e21e LW |
2170 | } |
2171 | ||
2172 | PP(pp_next) | |
2173 | { | |
27da23d5 | 2174 | dVAR; |
a0d0e21e | 2175 | I32 cxix; |
c09156bb | 2176 | register PERL_CONTEXT *cx; |
85538317 | 2177 | I32 inner; |
a0d0e21e | 2178 | |
533c011a | 2179 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2180 | cxix = dopoptoloop(cxstack_ix); |
2181 | if (cxix < 0) | |
a651a37d | 2182 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2183 | } |
2184 | else { | |
2185 | cxix = dopoptolabel(cPVOP->op_pv); | |
2186 | if (cxix < 0) | |
cea2e8a9 | 2187 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2188 | } |
2189 | if (cxix < cxstack_ix) | |
2190 | dounwind(cxix); | |
2191 | ||
85538317 GS |
2192 | /* clear off anything above the scope we're re-entering, but |
2193 | * save the rest until after a possible continue block */ | |
2194 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2195 | TOPBLOCK(cx); |
85538317 GS |
2196 | if (PL_scopestack_ix < inner) |
2197 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2198 | PL_curcop = cx->blk_oldcop; |
022eaa24 | 2199 | return CX_LOOP_NEXTOP_GET(cx); |
a0d0e21e LW |
2200 | } |
2201 | ||
2202 | PP(pp_redo) | |
2203 | { | |
27da23d5 | 2204 | dVAR; |
a0d0e21e | 2205 | I32 cxix; |
c09156bb | 2206 | register PERL_CONTEXT *cx; |
a0d0e21e | 2207 | I32 oldsave; |
a034e688 | 2208 | OP* redo_op; |
a0d0e21e | 2209 | |
533c011a | 2210 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2211 | cxix = dopoptoloop(cxstack_ix); |
2212 | if (cxix < 0) | |
a651a37d | 2213 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2214 | } |
2215 | else { | |
2216 | cxix = dopoptolabel(cPVOP->op_pv); | |
2217 | if (cxix < 0) | |
cea2e8a9 | 2218 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2219 | } |
2220 | if (cxix < cxstack_ix) | |
2221 | dounwind(cxix); | |
2222 | ||
022eaa24 | 2223 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2224 | if (redo_op->op_type == OP_ENTER) { |
2225 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2226 | cxstack_ix++; | |
2227 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2228 | redo_op = redo_op->op_next; | |
2229 | } | |
2230 | ||
a0d0e21e | 2231 | TOPBLOCK(cx); |
3280af22 | 2232 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2233 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2234 | FREETMPS; |
3a1b2b9e | 2235 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2236 | return redo_op; |
a0d0e21e LW |
2237 | } |
2238 | ||
0824fdcb | 2239 | STATIC OP * |
bfed75c6 | 2240 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2241 | { |
97aff369 | 2242 | dVAR; |
a0d0e21e | 2243 | OP **ops = opstack; |
bfed75c6 | 2244 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2245 | |
fc36a67e | 2246 | if (ops >= oplimit) |
cea2e8a9 | 2247 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2248 | if (o->op_type == OP_LEAVE || |
2249 | o->op_type == OP_SCOPE || | |
2250 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2251 | o->op_type == OP_LEAVESUB || |
11343788 | 2252 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2253 | { |
5dc0d613 | 2254 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2255 | if (ops >= oplimit) |
cea2e8a9 | 2256 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2257 | } |
c4aa4e48 | 2258 | *ops = 0; |
11343788 | 2259 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2260 | OP *kid; |
a0d0e21e | 2261 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2262 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
c4aa4e48 GS |
2263 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
2264 | kCOP->cop_label && strEQ(kCOP->cop_label, label)) | |
a0d0e21e LW |
2265 | return kid; |
2266 | } | |
11343788 | 2267 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2268 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2269 | continue; |
ed8d0fe2 SM |
2270 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2271 | if (ops == opstack) | |
2272 | *ops++ = kid; | |
2273 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2274 | ops[-1]->op_type == OP_DBSTATE) | |
2275 | ops[-1] = kid; | |
2276 | else | |
2277 | *ops++ = kid; | |
2278 | } | |
155aba94 | 2279 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2280 | return o; |
a0d0e21e LW |
2281 | } |
2282 | } | |
c4aa4e48 | 2283 | *ops = 0; |
a0d0e21e LW |
2284 | return 0; |
2285 | } | |
2286 | ||
a0d0e21e LW |
2287 | PP(pp_goto) |
2288 | { | |
27da23d5 | 2289 | dVAR; dSP; |
cbbf8932 | 2290 | OP *retop = NULL; |
a0d0e21e | 2291 | I32 ix; |
c09156bb | 2292 | register PERL_CONTEXT *cx; |
fc36a67e | 2293 | #define GOTO_DEPTH 64 |
2294 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2295 | const char *label = NULL; |
bfed75c6 AL |
2296 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2297 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2298 | |
533c011a | 2299 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2300 | SV * const sv = POPs; |
a0d0e21e LW |
2301 | |
2302 | /* This egregious kludge implements goto &subroutine */ | |
2303 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2304 | I32 cxix; | |
c09156bb | 2305 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2306 | CV* cv = (CV*)SvRV(sv); |
2307 | SV** mark; | |
2308 | I32 items = 0; | |
2309 | I32 oldsave; | |
b1464ded | 2310 | bool reified = 0; |
a0d0e21e | 2311 | |
e8f7dd13 | 2312 | retry: |
4aa0a1f7 | 2313 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2314 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2315 | if (gv) { |
7fc63493 | 2316 | GV *autogv; |
e8f7dd13 GS |
2317 | SV *tmpstr; |
2318 | /* autoloaded stub? */ | |
2319 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2320 | goto retry; | |
2321 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2322 | GvNAMELEN(gv), FALSE); | |
2323 | if (autogv && (cv = GvCV(autogv))) | |
2324 | goto retry; | |
2325 | tmpstr = sv_newmortal(); | |
c445ea15 | 2326 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2327 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2328 | } |
cea2e8a9 | 2329 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2330 | } |
2331 | ||
a0d0e21e | 2332 | /* First do some returnish stuff. */ |
b37c2d43 | 2333 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2334 | FREETMPS; |
a0d0e21e LW |
2335 | cxix = dopoptosub(cxstack_ix); |
2336 | if (cxix < 0) | |
cea2e8a9 | 2337 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2338 | if (cxix < cxstack_ix) |
2339 | dounwind(cxix); | |
2340 | TOPBLOCK(cx); | |
2d43a17f | 2341 | SPAGAIN; |
564abe23 | 2342 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2343 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2344 | if (CxREALEVAL(cx)) |
2345 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2346 | else | |
2347 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2348 | } |
9850bf21 RH |
2349 | else if (CxMULTICALL(cx)) |
2350 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
cc8d50a7 | 2351 | if (CxTYPE(cx) == CXt_SUB && cx->blk_sub.hasargs) { |
d8b46c1b | 2352 | /* put @_ back onto stack */ |
a0d0e21e | 2353 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2354 | |
93965878 | 2355 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2356 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2357 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2358 | SvREFCNT_dec(GvAV(PL_defgv)); |
2359 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2360 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2361 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2362 | if (AvREAL(av)) { |
b1464ded DM |
2363 | reified = 1; |
2364 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2365 | av = newAV(); |
2366 | av_extend(av, items-1); | |
11ca45c0 | 2367 | AvREIFY_only(av); |
dd2155a4 | 2368 | PAD_SVl(0) = (SV*)(cx->blk_sub.argarray = av); |
62b1ebc2 | 2369 | } |
a0d0e21e | 2370 | } |
aed2304a | 2371 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2372 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2373 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2374 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2375 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2376 | } |
a45cdc79 DM |
2377 | mark = SP; |
2378 | SP += items; | |
6b35e009 | 2379 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2380 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2381 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2382 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2383 | LEAVE_SCOPE(oldsave); |
2384 | ||
2385 | /* Now do some callish stuff. */ | |
2386 | SAVETMPS; | |
5023d17a | 2387 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2388 | if (CvISXSUB(cv)) { |
b37c2d43 | 2389 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2390 | SV **newsp; |
2391 | I32 gimme; | |
b1464ded DM |
2392 | if (reified) { |
2393 | I32 index; | |
2394 | for (index=0; index<items; index++) | |
2395 | sv_2mortal(SP[-index]); | |
2396 | } | |
1fa4e549 | 2397 | |
b37c2d43 AL |
2398 | /* XS subs don't have a CxSUB, so pop it */ |
2399 | POPBLOCK(cx, PL_curpm); | |
2400 | /* Push a mark for the start of arglist */ | |
2401 | PUSHMARK(mark); | |
2402 | PUTBACK; | |
2403 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a0d0e21e | 2404 | LEAVE; |
5eff7df7 | 2405 | return retop; |
a0d0e21e LW |
2406 | } |
2407 | else { | |
b37c2d43 | 2408 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2409 | if (CxTYPE(cx) == CXt_EVAL) { |
3280af22 NIS |
2410 | PL_in_eval = cx->blk_eval.old_in_eval; |
2411 | PL_eval_root = cx->blk_eval.old_eval_root; | |
b150fb22 | 2412 | cx->cx_type = CXt_SUB; |
cc8d50a7 | 2413 | cx->blk_sub.hasargs = 0; |
b150fb22 | 2414 | } |
a0d0e21e | 2415 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2416 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2417 | |
a0d0e21e LW |
2418 | CvDEPTH(cv)++; |
2419 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2420 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2421 | else { |
599cee73 | 2422 | if (CvDEPTH(cv) == 100 && ckWARN(WARN_RECURSION)) |
44a8e56a | 2423 | sub_crush_depth(cv); |
26019298 | 2424 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2425 | } |
fd617465 DM |
2426 | SAVECOMPPAD(); |
2427 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
cc8d50a7 | 2428 | if (cx->blk_sub.hasargs) |
6d4ff0d2 | 2429 | { |
b37c2d43 | 2430 | AV* const av = (AV*)PAD_SVl(0); |
a0d0e21e | 2431 | |
3280af22 | 2432 | cx->blk_sub.savearray = GvAV(PL_defgv); |
b37c2d43 | 2433 | GvAV(PL_defgv) = (AV*)SvREFCNT_inc_simple(av); |
dd2155a4 | 2434 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2435 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2436 | |
2437 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2438 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2439 | if (AvARRAY(av) != ary) { |
2440 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2441 | AvARRAY(av) = ary; |
a0d0e21e LW |
2442 | } |
2443 | if (items >= AvMAX(av) + 1) { | |
2444 | AvMAX(av) = items - 1; | |
2445 | Renew(ary,items+1,SV*); | |
2446 | AvALLOC(av) = ary; | |
9c6bc640 | 2447 | AvARRAY(av) = ary; |
a0d0e21e LW |
2448 | } |
2449 | } | |
a45cdc79 | 2450 | ++mark; |
a0d0e21e | 2451 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2452 | AvFILLp(av) = items - 1; |
d8b46c1b | 2453 | assert(!AvREAL(av)); |
b1464ded DM |
2454 | if (reified) { |
2455 | /* transfer 'ownership' of refcnts to new @_ */ | |
2456 | AvREAL_on(av); | |
2457 | AvREIFY_off(av); | |
2458 | } | |
a0d0e21e LW |
2459 | while (items--) { |
2460 | if (*mark) | |
2461 | SvTEMP_off(*mark); | |
2462 | mark++; | |
2463 | } | |
2464 | } | |
491527d0 | 2465 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2466 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 AL |
2467 | if (PERLDB_GOTO) { |
2468 | CV * const gotocv = get_cv("DB::goto", FALSE); | |
2469 | if (gotocv) { | |
2470 | PUSHMARK( PL_stack_sp ); | |
2471 | call_sv((SV*)gotocv, G_SCALAR | G_NODEBUG); | |
2472 | PL_stack_sp--; | |
2473 | } | |
491527d0 | 2474 | } |
1ce6579f | 2475 | } |
a0d0e21e LW |
2476 | RETURNOP(CvSTART(cv)); |
2477 | } | |
2478 | } | |
1614b0e3 | 2479 | else { |
0510663f | 2480 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2481 | if (!(do_dump || *label)) |
cea2e8a9 | 2482 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2483 | } |
a0d0e21e | 2484 | } |
533c011a | 2485 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2486 | if (! do_dump) |
cea2e8a9 | 2487 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2488 | } |
2489 | else | |
2490 | label = cPVOP->op_pv; | |
2491 | ||
2492 | if (label && *label) { | |
cbbf8932 | 2493 | OP *gotoprobe = NULL; |
3b2447bc | 2494 | bool leaving_eval = FALSE; |
33d34e4c | 2495 | bool in_block = FALSE; |
cbbf8932 | 2496 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2497 | |
2498 | /* find label */ | |
2499 | ||
d4c19fe8 | 2500 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2501 | *enterops = 0; |
2502 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2503 | cx = &cxstack[ix]; | |
6b35e009 | 2504 | switch (CxTYPE(cx)) { |
a0d0e21e | 2505 | case CXt_EVAL: |
3b2447bc | 2506 | leaving_eval = TRUE; |
971ecbe6 | 2507 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2508 | gotoprobe = (last_eval_cx ? |
2509 | last_eval_cx->blk_eval.old_eval_root : | |
2510 | PL_eval_root); | |
2511 | last_eval_cx = cx; | |
9c5794fe RH |
2512 | break; |
2513 | } | |
2514 | /* else fall through */ | |
a0d0e21e LW |
2515 | case CXt_LOOP: |
2516 | gotoprobe = cx->blk_oldcop->op_sibling; | |
2517 | break; | |
2518 | case CXt_SUBST: | |
2519 | continue; | |
2520 | case CXt_BLOCK: | |
33d34e4c | 2521 | if (ix) { |
a0d0e21e | 2522 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2523 | in_block = TRUE; |
2524 | } else | |
3280af22 | 2525 | gotoprobe = PL_main_root; |
a0d0e21e | 2526 | break; |
b3933176 | 2527 | case CXt_SUB: |
9850bf21 | 2528 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2529 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2530 | break; | |
2531 | } | |
2532 | /* FALL THROUGH */ | |
7766f137 | 2533 | case CXt_FORMAT: |
0a753a76 | 2534 | case CXt_NULL: |
a651a37d | 2535 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2536 | default: |
2537 | if (ix) | |
cea2e8a9 | 2538 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2539 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2540 | break; |
2541 | } | |
2b597662 GS |
2542 | if (gotoprobe) { |
2543 | retop = dofindlabel(gotoprobe, label, | |
2544 | enterops, enterops + GOTO_DEPTH); | |
2545 | if (retop) | |
2546 | break; | |
2547 | } | |
3280af22 | 2548 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2549 | } |
2550 | if (!retop) | |
cea2e8a9 | 2551 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2552 | |
3b2447bc RH |
2553 | /* if we're leaving an eval, check before we pop any frames |
2554 | that we're not going to punt, otherwise the error | |
2555 | won't be caught */ | |
2556 | ||
2557 | if (leaving_eval && *enterops && enterops[1]) { | |
2558 | I32 i; | |
2559 | for (i = 1; enterops[i]; i++) | |
2560 | if (enterops[i]->op_type == OP_ENTERITER) | |
2561 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2562 | } | |
2563 | ||
a0d0e21e LW |
2564 | /* pop unwanted frames */ |
2565 | ||
2566 | if (ix < cxstack_ix) { | |
2567 | I32 oldsave; | |
2568 | ||
2569 | if (ix < 0) | |
2570 | ix = 0; | |
2571 | dounwind(ix); | |
2572 | TOPBLOCK(cx); | |
3280af22 | 2573 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2574 | LEAVE_SCOPE(oldsave); |
2575 | } | |
2576 | ||
2577 | /* push wanted frames */ | |
2578 | ||
748a9306 | 2579 | if (*enterops && enterops[1]) { |
0bd48802 | 2580 | OP * const oldop = PL_op; |
33d34e4c AE |
2581 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2582 | for (; enterops[ix]; ix++) { | |
533c011a | 2583 | PL_op = enterops[ix]; |
84902520 TB |
2584 | /* Eventually we may want to stack the needed arguments |
2585 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2586 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2587 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2588 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2589 | } |
533c011a | 2590 | PL_op = oldop; |
a0d0e21e LW |
2591 | } |
2592 | } | |
2593 | ||
2594 | if (do_dump) { | |
a5f75d66 | 2595 | #ifdef VMS |
6b88bc9c | 2596 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2597 | #endif |
3280af22 NIS |
2598 | PL_restartop = retop; |
2599 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2600 | |
2601 | my_unexec(); | |
2602 | ||
3280af22 NIS |
2603 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2604 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2605 | } |
2606 | ||
2607 | RETURNOP(retop); | |
2608 | } | |
2609 | ||
2610 | PP(pp_exit) | |
2611 | { | |
97aff369 | 2612 | dVAR; |
39644a26 | 2613 | dSP; |
a0d0e21e LW |
2614 | I32 anum; |
2615 | ||
2616 | if (MAXARG < 1) | |
2617 | anum = 0; | |
ff0cee69 | 2618 | else { |
a0d0e21e | 2619 | anum = SvIVx(POPs); |
d98f61e7 GS |
2620 | #ifdef VMS |
2621 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2622 | anum = 0; |
96e176bf | 2623 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2624 | #endif |
2625 | } | |
cc3604b1 | 2626 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2627 | #ifdef PERL_MAD |
2628 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2629 | if (anum || !(PL_minus_c && PL_madskills)) | |
2630 | my_exit(anum); | |
2631 | #else | |
a0d0e21e | 2632 | my_exit(anum); |
81d86705 | 2633 | #endif |
3280af22 | 2634 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2635 | RETURN; |
2636 | } | |
2637 | ||
a0d0e21e LW |
2638 | /* Eval. */ |
2639 | ||
0824fdcb | 2640 | STATIC void |
cea2e8a9 | 2641 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2642 | { |
504618e9 | 2643 | const char *s = SvPVX_const(sv); |
890ce7af | 2644 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2645 | I32 line = 1; |
a0d0e21e LW |
2646 | |
2647 | while (s && s < send) { | |
f54cb97a | 2648 | const char *t; |
b9f83d2f | 2649 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2650 | |
a0d0e21e LW |
2651 | t = strchr(s, '\n'); |
2652 | if (t) | |
2653 | t++; | |
2654 | else | |
2655 | t = send; | |
2656 | ||
2657 | sv_setpvn(tmpstr, s, t - s); | |
2658 | av_store(array, line++, tmpstr); | |
2659 | s = t; | |
2660 | } | |
2661 | } | |
2662 | ||
0824fdcb | 2663 | STATIC OP * |
cea2e8a9 | 2664 | S_docatch(pTHX_ OP *o) |
1e422769 | 2665 | { |
97aff369 | 2666 | dVAR; |
6224f72b | 2667 | int ret; |
06b5626a | 2668 | OP * const oldop = PL_op; |
db36c5a1 | 2669 | dJMPENV; |
1e422769 | 2670 | |
1e422769 | 2671 | #ifdef DEBUGGING |
54310121 | 2672 | assert(CATCH_GET == TRUE); |
1e422769 | 2673 | #endif |
312caa8e | 2674 | PL_op = o; |
8bffa5f8 | 2675 | |
14dd3ad8 | 2676 | JMPENV_PUSH(ret); |
6224f72b | 2677 | switch (ret) { |
312caa8e | 2678 | case 0: |
abd70938 DM |
2679 | assert(cxstack_ix >= 0); |
2680 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2681 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2682 | redo_body: |
85aaa934 | 2683 | CALLRUNOPS(aTHX); |
312caa8e CS |
2684 | break; |
2685 | case 3: | |
8bffa5f8 | 2686 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2687 | |
2688 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2689 | * of the stack; the way die_where() currently works, this | |
2690 | * assumption is valid. In theory The cur_top_env value should be | |
2691 | * returned in another global, the way retop (aka PL_restartop) | |
2692 | * is. */ | |
2693 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2694 | ||
2695 | if (PL_restartop | |
2696 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2697 | { | |
312caa8e CS |
2698 | PL_op = PL_restartop; |
2699 | PL_restartop = 0; | |
2700 | goto redo_body; | |
2701 | } | |
2702 | /* FALL THROUGH */ | |
2703 | default: | |
14dd3ad8 | 2704 | JMPENV_POP; |
533c011a | 2705 | PL_op = oldop; |
6224f72b | 2706 | JMPENV_JUMP(ret); |
1e422769 | 2707 | /* NOTREACHED */ |
1e422769 | 2708 | } |
14dd3ad8 | 2709 | JMPENV_POP; |
533c011a | 2710 | PL_op = oldop; |
5f66b61c | 2711 | return NULL; |
1e422769 | 2712 | } |
2713 | ||
c277df42 | 2714 | OP * |
bfed75c6 | 2715 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2716 | /* sv Text to convert to OP tree. */ |
2717 | /* startop op_free() this to undo. */ | |
2718 | /* code Short string id of the caller. */ | |
2719 | { | |
f7997f86 | 2720 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2721 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2722 | PERL_CONTEXT *cx; |
2723 | SV **newsp; | |
b094c71d | 2724 | I32 gimme = G_VOID; |
c277df42 IZ |
2725 | I32 optype; |
2726 | OP dummy; | |
83ee9e09 GS |
2727 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2728 | char *tmpbuf = tbuf; | |
c277df42 | 2729 | char *safestr; |
a3985cdc | 2730 | int runtime; |
601f1833 | 2731 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2732 | STRLEN len; |
c277df42 IZ |
2733 | |
2734 | ENTER; | |
5486870f | 2735 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2736 | SAVETMPS; |
2737 | /* switch to eval mode */ | |
2738 | ||
923e4eb5 | 2739 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2740 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2741 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2742 | } |
83ee9e09 | 2743 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2744 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2745 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2746 | code, (unsigned long)++PL_evalseq, | |
2747 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2748 | tmpbuf = SvPVX(sv); | |
fc009855 | 2749 | len = SvCUR(sv); |
83ee9e09 GS |
2750 | } |
2751 | else | |
d9fad198 JH |
2752 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2753 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2754 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2755 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2756 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2757 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2758 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2759 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2760 | (i.e. before run-time proper). To work around the coredump that | |
2761 | ensues, we always turn GvMULTI_on for any globals that were | |
2762 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2763 | safestr = savepvn(tmpbuf, len); |
2764 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2765 | SAVEHINTS(); |
d1ca3daa | 2766 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2767 | PL_opsave = op; |
d1ca3daa | 2768 | #else |
7766f137 | 2769 | SAVEVPTR(PL_op); |
d1ca3daa | 2770 | #endif |
c277df42 | 2771 | |
a3985cdc | 2772 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2773 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2774 | if (runtime) |
d819b83a | 2775 | runcv = find_runcv(NULL); |
a3985cdc | 2776 | |
533c011a | 2777 | PL_op = &dummy; |
13b51b79 | 2778 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2779 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2780 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
a0714e2c | 2781 | PUSHEVAL(cx, 0, NULL); |
a3985cdc DM |
2782 | |
2783 | if (runtime) | |
410be5db | 2784 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 2785 | else |
410be5db | 2786 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
13b51b79 | 2787 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2788 | POPEVAL(cx); |
c277df42 IZ |
2789 | |
2790 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2791 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2792 | lex_end(); |
f3548bdc | 2793 | /* XXX DAPM do this properly one year */ |
b37c2d43 | 2794 | *padp = (AV*)SvREFCNT_inc_simple(PL_comppad); |
c277df42 | 2795 | LEAVE; |
923e4eb5 | 2796 | if (IN_PERL_COMPILETIME) |
623e6609 | 2797 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2798 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2799 | op = PL_opsave; |
d1ca3daa | 2800 | #endif |
9d4ba2ae AL |
2801 | PERL_UNUSED_VAR(newsp); |
2802 | PERL_UNUSED_VAR(optype); | |
2803 | ||
410be5db | 2804 | return PL_eval_start; |
c277df42 IZ |
2805 | } |
2806 | ||
a3985cdc DM |
2807 | |
2808 | /* | |
2809 | =for apidoc find_runcv | |
2810 | ||
2811 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2812 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2813 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2814 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2815 | than in the scope of the debugger itself). |
a3985cdc DM |
2816 | |
2817 | =cut | |
2818 | */ | |
2819 | ||
2820 | CV* | |
d819b83a | 2821 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2822 | { |
97aff369 | 2823 | dVAR; |
a3985cdc | 2824 | PERL_SI *si; |
a3985cdc | 2825 | |
d819b83a DM |
2826 | if (db_seqp) |
2827 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 2828 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 2829 | I32 ix; |
a3985cdc | 2830 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 2831 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 2832 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 2833 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
2834 | /* skip DB:: code */ |
2835 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
2836 | *db_seqp = cx->blk_oldcop->cop_seq; | |
2837 | continue; | |
2838 | } | |
2839 | return cv; | |
2840 | } | |
a3985cdc DM |
2841 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
2842 | return PL_compcv; | |
2843 | } | |
2844 | } | |
2845 | return PL_main_cv; | |
2846 | } | |
2847 | ||
2848 | ||
2849 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
2850 | * In the last case, startop is non-null, and contains the address of | |
2851 | * a pointer that should be set to the just-compiled code. | |
2852 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
2853 | * Returns a bool indicating whether the compile was successful; if so, |
2854 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
2855 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
2856 | */ |
2857 | ||
410be5db | 2858 | STATIC bool |
a3985cdc | 2859 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 2860 | { |
27da23d5 | 2861 | dVAR; dSP; |
46c461b5 | 2862 | OP * const saveop = PL_op; |
a0d0e21e | 2863 | |
6dc8a9e4 IZ |
2864 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
2865 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
2866 | : EVAL_INEVAL); | |
a0d0e21e | 2867 | |
1ce6579f | 2868 | PUSHMARK(SP); |
2869 | ||
3280af22 | 2870 | SAVESPTR(PL_compcv); |
b9f83d2f | 2871 | PL_compcv = (CV*)newSV_type(SVt_PVCV); |
1aff0e91 | 2872 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
2873 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
2874 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
2875 | ||
a3985cdc | 2876 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
b37c2d43 | 2877 | CvOUTSIDE(PL_compcv) = (CV*)SvREFCNT_inc_simple(outside); |
a3985cdc | 2878 | |
dd2155a4 | 2879 | /* set up a scratch pad */ |
a0d0e21e | 2880 | |
dd2155a4 | 2881 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 2882 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 2883 | |
07055b4c | 2884 | |
81d86705 NC |
2885 | if (!PL_madskills) |
2886 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 2887 | |
a0d0e21e LW |
2888 | /* make sure we compile in the right package */ |
2889 | ||
ed094faf | 2890 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 2891 | SAVESPTR(PL_curstash); |
ed094faf | 2892 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 2893 | } |
3c10abe3 | 2894 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
2895 | SAVESPTR(PL_beginav); |
2896 | PL_beginav = newAV(); | |
2897 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
2898 | SAVESPTR(PL_unitcheckav); |
2899 | PL_unitcheckav = newAV(); | |
2900 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 2901 | |
81d86705 | 2902 | #ifdef PERL_MAD |
9da243ce | 2903 | SAVEBOOL(PL_madskills); |
81d86705 NC |
2904 | PL_madskills = 0; |
2905 | #endif | |
2906 | ||
a0d0e21e LW |
2907 | /* try to compile it */ |
2908 | ||
5f66b61c | 2909 | PL_eval_root = NULL; |
3280af22 | 2910 | PL_curcop = &PL_compiling; |
fc15ae8f | 2911 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 2912 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 2913 | PL_in_eval |= EVAL_KEEPERR; |
1ce6579f | 2914 | else |
c69006e4 | 2915 | sv_setpvn(ERRSV,"",0); |
13765c85 | 2916 | if (yyparse() || PL_parser->error_count || !PL_eval_root) { |
0c58d367 | 2917 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 2918 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 2919 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 2920 | const char *msg; |
bfed75c6 | 2921 | |
533c011a | 2922 | PL_op = saveop; |
3280af22 NIS |
2923 | if (PL_eval_root) { |
2924 | op_free(PL_eval_root); | |
5f66b61c | 2925 | PL_eval_root = NULL; |
a0d0e21e | 2926 | } |
3280af22 | 2927 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 2928 | if (!startop) { |
3280af22 | 2929 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2930 | POPEVAL(cx); |
c277df42 | 2931 | } |
a0d0e21e LW |
2932 | lex_end(); |
2933 | LEAVE; | |
9d4ba2ae AL |
2934 | |
2935 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 2936 | if (optype == OP_REQUIRE) { |
b464bac0 | 2937 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 2938 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 2939 | &PL_sv_undef, 0); |
58d3fd3b SH |
2940 | Perl_croak(aTHX_ "%sCompilation failed in require", |
2941 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
2942 | } |
2943 | else if (startop) { | |
3280af22 | 2944 | POPBLOCK(cx,PL_curpm); |
c277df42 | 2945 | POPEVAL(cx); |
5a844595 GS |
2946 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
2947 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 2948 | } |
9d7f88dd | 2949 | else { |
9d7f88dd | 2950 | if (!*msg) { |
6502358f | 2951 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
2952 | } |
2953 | } | |
9d4ba2ae | 2954 | PERL_UNUSED_VAR(newsp); |
410be5db DM |
2955 | PUSHs(&PL_sv_undef); |
2956 | PUTBACK; | |
2957 | return FALSE; | |
a0d0e21e | 2958 | } |
57843af0 | 2959 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 2960 | if (startop) { |
3280af22 | 2961 | *startop = PL_eval_root; |
c277df42 | 2962 | } else |
3280af22 | 2963 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
2964 | |
2965 | /* Set the context for this new optree. | |
2966 | * If the last op is an OP_REQUIRE, force scalar context. | |
2967 | * Otherwise, propagate the context from the eval(). */ | |
2968 | if (PL_eval_root->op_type == OP_LEAVEEVAL | |
2969 | && cUNOPx(PL_eval_root)->op_first->op_type == OP_LINESEQ | |
2970 | && cLISTOPx(cUNOPx(PL_eval_root)->op_first)->op_last->op_type | |
2971 | == OP_REQUIRE) | |
2972 | scalar(PL_eval_root); | |
2973 | else if (gimme & G_VOID) | |
3280af22 | 2974 | scalarvoid(PL_eval_root); |
54310121 | 2975 | else if (gimme & G_ARRAY) |
3280af22 | 2976 | list(PL_eval_root); |
a0d0e21e | 2977 | else |
3280af22 | 2978 | scalar(PL_eval_root); |
a0d0e21e LW |
2979 | |
2980 | DEBUG_x(dump_eval()); | |
2981 | ||
55497cff | 2982 | /* Register with debugger: */ |
6482a30d | 2983 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
890ce7af | 2984 | CV * const cv = get_cv("DB::postponed", FALSE); |
55497cff | 2985 | if (cv) { |
2986 | dSP; | |
924508f0 | 2987 | PUSHMARK(SP); |
cc49e20b | 2988 | XPUSHs((SV*)CopFILEGV(&PL_compiling)); |
55497cff | 2989 | PUTBACK; |
864dbfa3 | 2990 | call_sv((SV*)cv, G_DISCARD); |
55497cff | 2991 | } |
2992 | } | |
2993 | ||
3c10abe3 AG |
2994 | if (PL_unitcheckav) |
2995 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
2996 | ||
a0d0e21e LW |
2997 | /* compiled okay, so do it */ |
2998 | ||
3280af22 NIS |
2999 | CvDEPTH(PL_compcv) = 1; |
3000 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3001 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3002 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3003 | |
410be5db DM |
3004 | PUTBACK; |
3005 | return TRUE; | |
a0d0e21e LW |
3006 | } |
3007 | ||
a6c40364 | 3008 | STATIC PerlIO * |
0786552a | 3009 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3010 | { |
3011 | Stat_t st; | |
c445ea15 | 3012 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3013 | |
6b845e56 | 3014 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3015 | return NULL; |
ce8abf5f SP |
3016 | } |
3017 | ||
0786552a | 3018 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3019 | } |
3020 | ||
75c20bac | 3021 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3022 | STATIC PerlIO * |
0786552a | 3023 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3024 | { |
b295d113 TH |
3025 | PerlIO *fp; |
3026 | ||
ce9440c8 | 3027 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3028 | SV *const pmcsv = newSV(namelen + 2); |
3029 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3030 | Stat_t pmcstat; |
50b8ed39 NC |
3031 | |
3032 | memcpy(pmc, name, namelen); | |
3033 | pmc[namelen] = 'c'; | |
3034 | pmc[namelen + 1] = '\0'; | |
3035 | ||
a6c40364 | 3036 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3037 | fp = check_type_and_open(name); |
a6c40364 GS |
3038 | } |
3039 | else { | |
0786552a | 3040 | fp = check_type_and_open(pmc); |
b295d113 | 3041 | } |
a6c40364 GS |
3042 | SvREFCNT_dec(pmcsv); |
3043 | } | |
3044 | else { | |
0786552a | 3045 | fp = check_type_and_open(name); |
b295d113 | 3046 | } |
b295d113 | 3047 | return fp; |
75c20bac | 3048 | } |
7925835c | 3049 | #else |
75c20bac | 3050 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3051 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3052 | |
a0d0e21e LW |
3053 | PP(pp_require) |
3054 | { | |
27da23d5 | 3055 | dVAR; dSP; |
c09156bb | 3056 | register PERL_CONTEXT *cx; |
a0d0e21e | 3057 | SV *sv; |
5c144d81 | 3058 | const char *name; |
6132ea6c | 3059 | STRLEN len; |
4492be7a JM |
3060 | char * unixname; |
3061 | STRLEN unixlen; | |
62f5ad7a | 3062 | #ifdef VMS |
4492be7a | 3063 | int vms_unixname = 0; |
62f5ad7a | 3064 | #endif |
c445ea15 AL |
3065 | const char *tryname = NULL; |
3066 | SV *namesv = NULL; | |
f54cb97a | 3067 | const I32 gimme = GIMME_V; |
bbed91b5 | 3068 | int filter_has_file = 0; |
c445ea15 | 3069 | PerlIO *tryrsfp = NULL; |
34113e50 | 3070 | SV *filter_cache = NULL; |
c445ea15 AL |
3071 | SV *filter_state = NULL; |
3072 | SV *filter_sub = NULL; | |
3073 | SV *hook_sv = NULL; | |
6ec9efec JH |
3074 | SV *encoding; |
3075 | OP *op; | |
a0d0e21e LW |
3076 | |
3077 | sv = POPs; | |
d7aa5382 | 3078 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
fbc891ce RB |
3079 | if ( SvVOK(sv) && ckWARN(WARN_PORTABLE) ) { /* require v5.6.1 */ |
3080 | HV * hinthv = GvHV(PL_hintgv); | |
3081 | SV ** ptr = NULL; | |
3082 | if (hinthv) ptr = hv_fetchs(hinthv, "v_string", FALSE); | |
3083 | if ( !(ptr && *ptr && SvIOK(*ptr) && SvIV(*ptr)) ) | |
9014280d | 3084 | Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
e3407aba | 3085 | "v-string in use/require non-portable"); |
fbc891ce | 3086 | } |
d7aa5382 JP |
3087 | sv = new_version(sv); |
3088 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3089 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3090 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3091 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3092 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3093 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3094 | } |
3095 | else { | |
d1029faa JP |
3096 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3097 | I32 first = 0; | |
3098 | AV *lav; | |
3099 | SV * const req = SvRV(sv); | |
3100 | SV * const pv = *hv_fetchs((HV*)req, "original", FALSE); | |
3101 | ||
3102 | /* get the left hand term */ | |
3103 | lav = (AV *)SvRV(*hv_fetchs((HV*)req, "version", FALSE)); | |
3104 | ||
3105 | first = SvIV(*av_fetch(lav,0,0)); | |
3106 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
3107 | || hv_exists((HV*)req, "qv", 2 ) /* qv style */ | |
3108 | || av_len(lav) > 1 /* FP with > 3 digits */ | |
3109 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3110 | ) { | |
3111 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3112 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3113 | SVfARG(vnormal(PL_patchlevel))); | |
3114 | } | |
3115 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
3116 | SV * hintsv = newSV(0); | |
3117 | I32 second = 0; | |
3118 | ||
3119 | if (av_len(lav)>=1) | |
3120 | second = SvIV(*av_fetch(lav,1,0)); | |
3121 | ||
3122 | second /= second >= 600 ? 100 : 10; | |
3123 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.%d", | |
3124 | (int)first, (int)second,0); | |
3125 | upg_version(hintsv, TRUE); | |
3126 | ||
3127 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3128 | "--this is only %"SVf", stopped", | |
3129 | SVfARG(vnormal(req)), | |
3130 | SVfARG(vnormal(hintsv)), | |
3131 | SVfARG(vnormal(PL_patchlevel))); | |
3132 | } | |
3133 | } | |
468aa647 | 3134 | } |
d7aa5382 | 3135 | |
fbc891ce RB |
3136 | /* We do this only with use, not require. */ |
3137 | if (PL_compcv && | |
3138 | /* If we request a version >= 5.6.0, then v-string are OK | |
3139 | so set $^H{v_string} to suppress the v-string warning */ | |
3140 | vcmp(sv, sv_2mortal(upg_version(newSVnv(5.006), FALSE))) >= 0) { | |
3141 | HV * hinthv = GvHV(PL_hintgv); | |
3142 | if( hinthv ) { | |
fc92a12d NC |
3143 | SV *hint = newSViv(1); |
3144 | (void)hv_stores(hinthv, "v_string", hint); | |
3145 | /* This will call through to Perl_magic_sethint() which in turn | |
3146 | sets PL_hints correctly. */ | |
3147 | SvSETMAGIC(hint); | |
fbc891ce RB |
3148 | } |
3149 | /* If we request a version >= 5.9.5, load feature.pm with the | |
3150 | * feature bundle that corresponds to the required version. */ | |
3151 | if (vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { | |
7dfde25d RGS |
3152 | SV *const importsv = vnormal(sv); |
3153 | *SvPVX_mutable(importsv) = ':'; | |
3154 | ENTER; | |
3155 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); | |
3156 | LEAVE; | |
fbc891ce | 3157 | } |
7dfde25d RGS |
3158 | } |
3159 | ||
3160 | RETPUSHYES; | |
a0d0e21e | 3161 | } |
5c144d81 | 3162 | name = SvPV_const(sv, len); |
6132ea6c | 3163 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3164 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3165 | TAINT_PROPER("require"); |
4492be7a JM |
3166 | |
3167 | ||
3168 | #ifdef VMS | |
3169 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3170 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3171 | * can result in a module being pulled in more than once. | |
3172 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3173 | * name can be translated to UNIX. | |
3174 | */ | |
3175 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3176 | unixlen = strlen(unixname); | |
3177 | vms_unixname = 1; | |
3178 | } | |
3179 | else | |
3180 | #endif | |
3181 | { | |
3182 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3183 | * through. | |
3184 | */ | |
3185 | unixname = (char *) name; | |
3186 | unixlen = len; | |
3187 | } | |
44f8325f | 3188 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3189 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3190 | unixname, unixlen, 0); | |
44f8325f AL |
3191 | if ( svp ) { |
3192 | if (*svp != &PL_sv_undef) | |
3193 | RETPUSHYES; | |
3194 | else | |
087b5369 RD |
3195 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3196 | "Compilation failed in require", unixname); | |
44f8325f | 3197 | } |
4d8b06f1 | 3198 | } |
a0d0e21e LW |
3199 | |
3200 | /* prepare to compile file */ | |
3201 | ||
be4b629d | 3202 | if (path_is_absolute(name)) { |
46fc3d4c | 3203 | tryname = name; |
0786552a | 3204 | tryrsfp = doopen_pm(name, len); |
bf4acbe4 | 3205 | } |
67627c52 JH |
3206 | #ifdef MACOS_TRADITIONAL |
3207 | if (!tryrsfp) { | |
3208 | char newname[256]; | |
3209 | ||
3210 | MacPerl_CanonDir(name, newname, 1); | |
3211 | if (path_is_absolute(newname)) { | |
3212 | tryname = newname; | |
0786552a | 3213 | tryrsfp = doopen_pm(newname, strlen(newname)); |
67627c52 JH |
3214 | } |
3215 | } | |
3216 | #endif | |
be4b629d | 3217 | if (!tryrsfp) { |
44f8325f | 3218 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3219 | I32 i; |
748a9306 | 3220 | #ifdef VMS |
4492be7a | 3221 | if (vms_unixname) |
46fc3d4c | 3222 | #endif |
3223 | { | |
561b68a9 | 3224 | namesv = newSV(0); |
b640a14a | 3225 | sv_upgrade(namesv, SVt_PV); |
46fc3d4c | 3226 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3227 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3228 | |
c38a6530 RD |
3229 | if (SvTIED_mg((SV*)ar, PERL_MAGIC_tied)) |
3230 | mg_get(dirsv); | |
bbed91b5 KF |
3231 | if (SvROK(dirsv)) { |
3232 | int count; | |
a3b58a99 | 3233 | SV **svp; |
bbed91b5 KF |
3234 | SV *loader = dirsv; |
3235 | ||
e14e2dc8 NC |
3236 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3237 | && !sv_isobject(loader)) | |
3238 | { | |
bbed91b5 KF |
3239 | loader = *av_fetch((AV *)SvRV(loader), 0, TRUE); |
3240 | } | |
3241 | ||
b900a521 | 3242 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3243 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3244 | tryname = SvPVX_const(namesv); |
c445ea15 | 3245 | tryrsfp = NULL; |
bbed91b5 KF |
3246 | |
3247 | ENTER; | |
3248 | SAVETMPS; | |
3249 | EXTEND(SP, 2); | |
3250 | ||
3251 | PUSHMARK(SP); | |
3252 | PUSHs(dirsv); | |
3253 | PUSHs(sv); | |
3254 | PUTBACK; | |
e982885c NC |
3255 | if (sv_isobject(loader)) |
3256 | count = call_method("INC", G_ARRAY); | |
3257 | else | |
3258 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3259 | SPAGAIN; |
3260 | ||
a3b58a99 RGS |
3261 | /* Adjust file name if the hook has set an %INC entry */ |
3262 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3263 | if (svp) | |
3264 | tryname = SvPVX_const(*svp); | |
3265 | ||
bbed91b5 KF |
3266 | if (count > 0) { |
3267 | int i = 0; | |
3268 | SV *arg; | |
3269 | ||
3270 | SP -= count - 1; | |
3271 | arg = SP[i++]; | |
3272 | ||
34113e50 NC |
3273 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3274 | && !isGV_with_GP(SvRV(arg))) { | |
3275 | filter_cache = SvRV(arg); | |
74c765eb | 3276 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3277 | |
3278 | if (i < count) { | |
3279 | arg = SP[i++]; | |
3280 | } | |
3281 | } | |
3282 | ||
bbed91b5 KF |
3283 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVGV) { |
3284 | arg = SvRV(arg); | |
3285 | } | |
3286 | ||
3287 | if (SvTYPE(arg) == SVt_PVGV) { | |
df528165 | 3288 | IO * const io = GvIO((GV *)arg); |
bbed91b5 KF |
3289 | |
3290 | ++filter_has_file; | |
3291 | ||
3292 | if (io) { | |
3293 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3294 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3295 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3296 | } |
0f7de14d NC |
3297 | IoIFP(io) = NULL; |
3298 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3299 | } |
3300 | ||
3301 | if (i < count) { | |
3302 | arg = SP[i++]; | |
3303 | } | |
3304 | } | |
3305 | ||
3306 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3307 | filter_sub = arg; | |
74c765eb | 3308 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3309 | |
3310 | if (i < count) { | |
3311 | filter_state = SP[i]; | |
b37c2d43 | 3312 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3313 | } |
34113e50 | 3314 | } |
bbed91b5 | 3315 | |
34113e50 NC |
3316 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3317 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3318 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3319 | } |
1d06aecd | 3320 | SP--; |
bbed91b5 KF |
3321 | } |
3322 | ||
3323 | PUTBACK; | |
3324 | FREETMPS; | |
3325 | LEAVE; | |
3326 | ||
3327 | if (tryrsfp) { | |
89ccab8c | 3328 | hook_sv = dirsv; |
bbed91b5 KF |
3329 | break; |
3330 | } | |
3331 | ||
3332 | filter_has_file = 0; | |
34113e50 NC |
3333 | if (filter_cache) { |
3334 | SvREFCNT_dec(filter_cache); | |
3335 | filter_cache = NULL; | |
3336 | } | |
bbed91b5 KF |
3337 | if (filter_state) { |
3338 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3339 | filter_state = NULL; |
bbed91b5 KF |
3340 | } |
3341 | if (filter_sub) { | |
3342 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3343 | filter_sub = NULL; |
bbed91b5 KF |
3344 | } |
3345 | } | |
3346 | else { | |
be4b629d CN |
3347 | if (!path_is_absolute(name) |
3348 | #ifdef MACOS_TRADITIONAL | |
3349 | /* We consider paths of the form :a:b ambiguous and interpret them first | |
3350 | as global then as local | |
3351 | */ | |
3352 | || (*name == ':' && name[1] != ':' && strchr(name+2, ':')) | |
3353 | #endif | |
3354 | ) { | |
b640a14a NC |
3355 | const char *dir; |
3356 | STRLEN dirlen; | |
3357 | ||
3358 | if (SvOK(dirsv)) { | |
3359 | dir = SvPV_const(dirsv, dirlen); | |
3360 | } else { | |
3361 | dir = ""; | |
3362 | dirlen = 0; | |
3363 | } | |
3364 | ||
bf4acbe4 | 3365 | #ifdef MACOS_TRADITIONAL |
67627c52 JH |
3366 | char buf1[256]; |
3367 | char buf2[256]; | |
3368 | ||
3369 | MacPerl_CanonDir(name, buf2, 1); | |
3370 | Perl_sv_setpvf(aTHX_ namesv, "%s%s", MacPerl_CanonDir(dir, buf1, 0), buf2+(buf2[0] == ':')); | |
bf4acbe4 | 3371 | #else |
27da23d5 | 3372 | # ifdef VMS |
bbed91b5 | 3373 | char *unixdir; |
c445ea15 | 3374 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3375 | continue; |
3376 | sv_setpv(namesv, unixdir); | |
3377 | sv_catpv(namesv, unixname); | |
27da23d5 | 3378 | # else |
a0fd4948 | 3379 | # ifdef __SYMBIAN32__ |
27da23d5 JH |
3380 | if (PL_origfilename[0] && |
3381 | PL_origfilename[1] == ':' && | |
3382 | !(dir[0] && dir[1] == ':')) | |
3383 | Perl_sv_setpvf(aTHX_ namesv, | |
3384 | "%c:%s\\%s", | |
3385 | PL_origfilename[0], | |
3386 | dir, name); | |
3387 | else | |
3388 | Perl_sv_setpvf(aTHX_ namesv, | |
3389 | "%s\\%s", | |
3390 | dir, name); | |
3391 | # else | |
b640a14a NC |
3392 | /* The equivalent of |
3393 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3394 | but without the need to parse the format string, or | |
3395 | call strlen on either pointer, and with the correct | |
3396 | allocation up front. */ | |
3397 | { | |
3398 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3399 | ||
3400 | memcpy(tmp, dir, dirlen); | |
3401 | tmp +=dirlen; | |
3402 | *tmp++ = '/'; | |
3403 | /* name came from an SV, so it will have a '\0' at the | |
3404 | end that we can copy as part of this memcpy(). */ | |
3405 | memcpy(tmp, name, len + 1); | |
3406 | ||
3407 | SvCUR_set(namesv, dirlen + len + 1); | |
3408 | ||
3409 | /* Don't even actually have to turn SvPOK_on() as we | |
3410 | access it directly with SvPVX() below. */ | |
3411 | } | |
27da23d5 JH |
3412 | # endif |
3413 | # endif | |
bf4acbe4 | 3414 | #endif |
bbed91b5 | 3415 | TAINT_PROPER("require"); |
349d4f2f | 3416 | tryname = SvPVX_const(namesv); |
0786552a | 3417 | tryrsfp = doopen_pm(tryname, SvCUR(namesv)); |
bbed91b5 KF |
3418 | if (tryrsfp) { |
3419 | if (tryname[0] == '.' && tryname[1] == '/') | |
3420 | tryname += 2; | |
3421 | break; | |
3422 | } | |
ff806af2 DM |
3423 | else if (errno == EMFILE) |
3424 | /* no point in trying other paths if out of handles */ | |
3425 | break; | |
be4b629d | 3426 | } |
46fc3d4c | 3427 | } |
a0d0e21e LW |
3428 | } |
3429 | } | |
3430 | } | |
f4dd75d9 | 3431 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3432 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3433 | SvREFCNT_dec(namesv); |
a0d0e21e | 3434 | if (!tryrsfp) { |
533c011a | 3435 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3436 | const char *msgstr = name; |
e31de809 | 3437 | if(errno == EMFILE) { |
b9b739dc NC |
3438 | SV * const msg |
3439 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3440 | Strerror(errno))); | |
349d4f2f | 3441 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3442 | } else { |
3443 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3444 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3445 | I32 i; |
b8f04b1b NC |
3446 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3447 | "%s in @INC%s%s (@INC contains:", | |
3448 | msgstr, | |
3449 | (instr(msgstr, ".h ") | |
3450 | ? " (change .h to .ph maybe?)" : ""), | |
3451 | (instr(msgstr, ".ph ") | |
3452 | ? " (did you run h2ph?)" : "") | |
3453 | )); | |
3454 | ||
e31de809 | 3455 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3456 | sv_catpvs(msg, " "); |
b8f04b1b | 3457 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3458 | } |
396482e1 | 3459 | sv_catpvs(msg, ")"); |
e31de809 SP |
3460 | msgstr = SvPV_nolen_const(msg); |
3461 | } | |
2683423c | 3462 | } |
ea071790 | 3463 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3464 | } |
3465 | ||
3466 | RETPUSHUNDEF; | |
3467 | } | |
d8bfb8bd | 3468 | else |
93189314 | 3469 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3470 | |
3471 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3472 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3473 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3474 | if (!hook_sv) { |
4492be7a JM |
3475 | (void)hv_store(GvHVn(PL_incgv), |
3476 | unixname, unixlen, newSVpv(CopFILE(&PL_compiling),0),0); | |
44f8325f | 3477 | } else { |
4492be7a | 3478 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3479 | if (!svp) |
4492be7a JM |
3480 | (void)hv_store(GvHVn(PL_incgv), |
3481 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3482 | } |
a0d0e21e LW |
3483 | |
3484 | ENTER; | |
3485 | SAVETMPS; | |
5486870f | 3486 | lex_start(NULL, tryrsfp, TRUE); |
e50aee73 | 3487 | |
b3ac6de7 | 3488 | SAVEHINTS(); |
3280af22 | 3489 | PL_hints = 0; |
68da3b2f | 3490 | SAVECOMPILEWARNINGS(); |
0453d815 | 3491 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3492 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3493 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3494 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3495 | else |
d3a7d8c7 | 3496 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3497 | |
34113e50 | 3498 | if (filter_sub || filter_cache) { |
c445ea15 | 3499 | SV * const datasv = filter_add(S_run_user_filter, NULL); |
bbed91b5 | 3500 | IoLINES(datasv) = filter_has_file; |
bbed91b5 KF |
3501 | IoTOP_GV(datasv) = (GV *)filter_state; |
3502 | IoBOTTOM_GV(datasv) = (GV *)filter_sub; | |
34113e50 | 3503 | IoFMT_GV(datasv) = (GV *)filter_cache; |
bbed91b5 KF |
3504 | } |
3505 | ||
3506 | /* switch to eval mode */ | |
a0d0e21e | 3507 | PUSHBLOCK(cx, CXt_EVAL, SP); |
a0714e2c | 3508 | PUSHEVAL(cx, name, NULL); |
f39bc417 | 3509 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3510 | |
57843af0 GS |
3511 | SAVECOPLINE(&PL_compiling); |
3512 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3513 | |
3514 | PUTBACK; | |
6ec9efec JH |
3515 | |
3516 | /* Store and reset encoding. */ | |
3517 | encoding = PL_encoding; | |
c445ea15 | 3518 | PL_encoding = NULL; |
6ec9efec | 3519 | |
410be5db DM |
3520 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3521 | op = DOCATCH(PL_eval_start); | |
3522 | else | |
3523 | op = PL_op->op_next; | |
bfed75c6 | 3524 | |
6ec9efec JH |
3525 | /* Restore encoding. */ |
3526 | PL_encoding = encoding; | |
3527 | ||
3528 | return op; | |
a0d0e21e LW |
3529 | } |
3530 | ||
a0d0e21e LW |
3531 | PP(pp_entereval) |
3532 | { | |
27da23d5 | 3533 | dVAR; dSP; |
c09156bb | 3534 | register PERL_CONTEXT *cx; |
0d863452 | 3535 | SV *sv; |
890ce7af AL |
3536 | const I32 gimme = GIMME_V; |
3537 | const I32 was = PL_sub_generation; | |
83ee9e09 GS |
3538 | char tbuf[TYPE_DIGITS(long) + 12]; |
3539 | char *tmpbuf = tbuf; | |
fc36a67e | 3540 | char *safestr; |
a0d0e21e | 3541 | STRLEN len; |
410be5db | 3542 | bool ok; |
a3985cdc | 3543 | CV* runcv; |
d819b83a | 3544 | U32 seq; |
c445ea15 | 3545 | HV *saved_hh = NULL; |
e80fed9d | 3546 | const char * const fakestr = "_<(eval )"; |
e80fed9d | 3547 | const int fakelen = 9 + 1; |
0d863452 RH |
3548 | |
3549 | if (PL_op->op_private & OPpEVAL_HAS_HH) { | |
3550 | saved_hh = (HV*) SvREFCNT_inc(POPs); | |
3551 | } | |
3552 | sv = POPs; | |
a0d0e21e | 3553 | |
af2d3def | 3554 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3555 | TAINT_PROPER("eval"); |
a0d0e21e LW |
3556 | |
3557 | ENTER; | |
5486870f | 3558 | lex_start(sv, NULL, FALSE); |
748a9306 | 3559 | SAVETMPS; |
ac27b0f5 | 3560 | |
a0d0e21e LW |
3561 | /* switch to eval mode */ |
3562 | ||
83ee9e09 | 3563 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3564 | SV * const temp_sv = sv_newmortal(); |
3565 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3566 | (unsigned long)++PL_evalseq, |
3567 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3568 | tmpbuf = SvPVX(temp_sv); |
3569 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3570 | } |
3571 | else | |
d9fad198 | 3572 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3573 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3574 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3575 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3576 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3577 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3578 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3579 | (i.e. before run-time proper). To work around the coredump that | |
3580 | ensues, we always turn GvMULTI_on for any globals that were | |
3581 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
3582 | safestr = savepvn(tmpbuf, len); |
3583 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 3584 | SAVEHINTS(); |
533c011a | 3585 | PL_hints = PL_op->op_targ; |
0d863452 RH |
3586 | if (saved_hh) |
3587 | GvHV(PL_hintgv) = saved_hh; | |
68da3b2f | 3588 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3589 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3590 | if (PL_compiling.cop_hints_hash) { |
3591 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3592 | } |
c28fe1ec NC |
3593 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; |
3594 | if (PL_compiling.cop_hints_hash) { | |
cbb1fbea | 3595 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3596 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3597 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3598 | } |
d819b83a DM |
3599 | /* special case: an eval '' executed within the DB package gets lexically |
3600 | * placed in the first non-DB CV rather than the current CV - this | |
3601 | * allows the debugger to execute code, find lexicals etc, in the | |
3602 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3603 | * to do the dirty work for us */ | |
3604 | runcv = find_runcv(&seq); | |
a0d0e21e | 3605 | |
6b35e009 | 3606 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
a0714e2c | 3607 | PUSHEVAL(cx, 0, NULL); |
f39bc417 | 3608 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3609 | |
3610 | /* prepare to compile string */ | |
3611 | ||
3280af22 | 3612 | if (PERLDB_LINE && PL_curstash != PL_debstash) |
bdc0bf6f | 3613 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
a0d0e21e | 3614 | PUTBACK; |
410be5db | 3615 | ok = doeval(gimme, NULL, runcv, seq); |
eb160463 | 3616 | if (PERLDB_INTER && was != (I32)PL_sub_generation /* Some subs defined here. */ |
410be5db | 3617 | && ok) { |
e80fed9d | 3618 | /* Copy in anything fake and short. */ |
28f0d0ec | 3619 | my_strlcpy(safestr, fakestr, fakelen); |
55497cff | 3620 | } |
410be5db | 3621 | return ok ? DOCATCH(PL_eval_start) : PL_op->op_next; |
a0d0e21e LW |
3622 | } |
3623 | ||
3624 | PP(pp_leaveeval) | |
3625 | { | |
27da23d5 | 3626 | dVAR; dSP; |
a0d0e21e LW |
3627 | register SV **mark; |
3628 | SV **newsp; | |
3629 | PMOP *newpm; | |
3630 | I32 gimme; | |
c09156bb | 3631 | register PERL_CONTEXT *cx; |
a0d0e21e | 3632 | OP *retop; |
06b5626a | 3633 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3634 | I32 optype; |
3635 | ||
3636 | POPBLOCK(cx,newpm); | |
3637 | POPEVAL(cx); | |
f39bc417 | 3638 | retop = cx->blk_eval.retop; |
a0d0e21e | 3639 | |
a1f49e72 | 3640 | TAINT_NOT; |
54310121 | 3641 | if (gimme == G_VOID) |
3642 | MARK = newsp; | |
3643 | else if (gimme == G_SCALAR) { | |
3644 | MARK = newsp + 1; | |
3645 | if (MARK <= SP) { | |
3646 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3647 | *MARK = TOPs; | |
3648 | else | |
3649 | *MARK = sv_mortalcopy(TOPs); | |
3650 | } | |
a0d0e21e | 3651 | else { |
54310121 | 3652 | MEXTEND(mark,0); |
3280af22 | 3653 | *MARK = &PL_sv_undef; |
a0d0e21e | 3654 | } |
a7ec2b44 | 3655 | SP = MARK; |
a0d0e21e LW |
3656 | } |
3657 | else { | |
a1f49e72 CS |
3658 | /* in case LEAVE wipes old return values */ |
3659 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3660 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3661 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3662 | TAINT_NOT; /* Each item is independent */ |
3663 | } | |
3664 | } | |
a0d0e21e | 3665 | } |
3280af22 | 3666 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3667 | |
4fdae800 | 3668 | #ifdef DEBUGGING |
3280af22 | 3669 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3670 | #endif |
3280af22 | 3671 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3672 | lex_end(); |
4fdae800 | 3673 | |
1ce6579f | 3674 | if (optype == OP_REQUIRE && |
924508f0 | 3675 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3676 | { |
1ce6579f | 3677 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3678 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3679 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 3680 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
f46d017c GS |
3681 | /* die_where() did LEAVE, or we won't be here */ |
3682 | } | |
3683 | else { | |
3684 | LEAVE; | |
3685 | if (!(save_flags & OPf_SPECIAL)) | |
c69006e4 | 3686 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 3687 | } |
a0d0e21e LW |
3688 | |
3689 | RETURNOP(retop); | |
3690 | } | |
3691 | ||
edb2152a NC |
3692 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3693 | close to the related Perl_create_eval_scope. */ | |
3694 | void | |
3695 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3696 | { |
edb2152a NC |
3697 | SV **newsp; |
3698 | PMOP *newpm; | |
3699 | I32 gimme; | |
c09156bb | 3700 | register PERL_CONTEXT *cx; |
edb2152a NC |
3701 | I32 optype; |
3702 | ||
3703 | POPBLOCK(cx,newpm); | |
3704 | POPEVAL(cx); | |
3705 | PL_curpm = newpm; | |
3706 | LEAVE; | |
3707 | PERL_UNUSED_VAR(newsp); | |
3708 | PERL_UNUSED_VAR(gimme); | |
3709 | PERL_UNUSED_VAR(optype); | |
3710 | } | |
a0d0e21e | 3711 | |
edb2152a NC |
3712 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3713 | also needed by Perl_fold_constants. */ | |
3714 | PERL_CONTEXT * | |
3715 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3716 | { | |
3717 | PERL_CONTEXT *cx; | |
3718 | const I32 gimme = GIMME_V; | |
3719 | ||
a0d0e21e LW |
3720 | ENTER; |
3721 | SAVETMPS; | |
3722 | ||
edb2152a | 3723 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
a0d0e21e | 3724 | PUSHEVAL(cx, 0, 0); |
a0d0e21e | 3725 | |
faef0170 | 3726 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3727 | if (flags & G_KEEPERR) |
3728 | PL_in_eval |= EVAL_KEEPERR; | |
3729 | else | |
3730 | sv_setpvn(ERRSV,"",0); | |
3731 | if (flags & G_FAKINGEVAL) { | |
3732 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3733 | } | |
3734 | return cx; | |
3735 | } | |
3736 | ||
3737 | PP(pp_entertry) | |
3738 | { | |
3739 | dVAR; | |
df528165 | 3740 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 3741 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 3742 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3743 | } |
3744 | ||
3745 | PP(pp_leavetry) | |
3746 | { | |
27da23d5 | 3747 | dVAR; dSP; |
a0d0e21e LW |
3748 | SV **newsp; |
3749 | PMOP *newpm; | |
3750 | I32 gimme; | |
c09156bb | 3751 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3752 | I32 optype; |
3753 | ||
3754 | POPBLOCK(cx,newpm); | |
3755 | POPEVAL(cx); | |
9d4ba2ae | 3756 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3757 | |
a1f49e72 | 3758 | TAINT_NOT; |
54310121 | 3759 | if (gimme == G_VOID) |
3760 | SP = newsp; | |
3761 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3762 | register SV **mark; |
54310121 | 3763 | MARK = newsp + 1; |
3764 | if (MARK <= SP) { | |
3765 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3766 | *MARK = TOPs; | |
3767 | else | |
3768 | *MARK = sv_mortalcopy(TOPs); | |
3769 | } | |
a0d0e21e | 3770 | else { |
54310121 | 3771 | MEXTEND(mark,0); |
3280af22 | 3772 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3773 | } |
3774 | SP = MARK; | |
3775 | } | |
3776 | else { | |
a1f49e72 | 3777 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3778 | register SV **mark; |
a1f49e72 CS |
3779 | for (mark = newsp + 1; mark <= SP; mark++) { |
3780 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3781 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3782 | TAINT_NOT; /* Each item is independent */ |
3783 | } | |
3784 | } | |
a0d0e21e | 3785 | } |
3280af22 | 3786 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
3787 | |
3788 | LEAVE; | |
c69006e4 | 3789 | sv_setpvn(ERRSV,"",0); |
745cf2ff | 3790 | RETURN; |
a0d0e21e LW |
3791 | } |
3792 | ||
0d863452 RH |
3793 | PP(pp_entergiven) |
3794 | { | |
3795 | dVAR; dSP; | |
3796 | register PERL_CONTEXT *cx; | |
3797 | const I32 gimme = GIMME_V; | |
3798 | ||
3799 | ENTER; | |
3800 | SAVETMPS; | |
3801 | ||
3802 | if (PL_op->op_targ == 0) { | |
c445ea15 | 3803 | SV ** const defsv_p = &GvSV(PL_defgv); |
0d863452 RH |
3804 | *defsv_p = newSVsv(POPs); |
3805 | SAVECLEARSV(*defsv_p); | |
3806 | } | |
3807 | else | |
3808 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); | |
3809 | ||
3810 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3811 | PUSHGIVEN(cx); | |
3812 | ||
3813 | RETURN; | |
3814 | } | |
3815 | ||
3816 | PP(pp_leavegiven) | |
3817 | { | |
3818 | dVAR; dSP; | |
3819 | register PERL_CONTEXT *cx; | |
3820 | I32 gimme; | |
3821 | SV **newsp; | |
3822 | PMOP *newpm; | |
96a5add6 | 3823 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3824 | |
3825 | POPBLOCK(cx,newpm); | |
3826 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3827 | |
3828 | SP = newsp; | |
3829 | PUTBACK; | |
3830 | ||
3831 | PL_curpm = newpm; /* pop $1 et al */ | |
3832 | ||
3833 | LEAVE; | |
3834 | ||
3835 | return NORMAL; | |
3836 | } | |
3837 | ||
3838 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 3839 | STATIC PMOP * |
0d863452 RH |
3840 | S_make_matcher(pTHX_ regexp *re) |
3841 | { | |
97aff369 | 3842 | dVAR; |
0d863452 RH |
3843 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
3844 | PM_SETRE(matcher, ReREFCNT_inc(re)); | |
3845 | ||
3846 | SAVEFREEOP((OP *) matcher); | |
3847 | ENTER; SAVETMPS; | |
3848 | SAVEOP(); | |
3849 | return matcher; | |
3850 | } | |
3851 | ||
4136a0f7 | 3852 | STATIC bool |
0d863452 RH |
3853 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
3854 | { | |
97aff369 | 3855 | dVAR; |
0d863452 RH |
3856 | dSP; |
3857 | ||
3858 | PL_op = (OP *) matcher; | |
3859 | XPUSHs(sv); | |
3860 | PUTBACK; | |
3861 | (void) pp_match(); | |
3862 | SPAGAIN; | |
3863 | return (SvTRUEx(POPs)); | |
3864 | } | |
3865 | ||
4136a0f7 | 3866 | STATIC void |
0d863452 RH |
3867 | S_destroy_matcher(pTHX_ PMOP *matcher) |
3868 | { | |
97aff369 | 3869 | dVAR; |
0d863452 RH |
3870 | PERL_UNUSED_ARG(matcher); |
3871 | FREETMPS; | |
3872 | LEAVE; | |
3873 | } | |
3874 | ||
3875 | /* Do a smart match */ | |
3876 | PP(pp_smartmatch) | |
3877 | { | |
a0714e2c | 3878 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
3879 | } |
3880 | ||
4b021f5f RGS |
3881 | /* This version of do_smartmatch() implements the |
3882 | * table of smart matches that is found in perlsyn. | |
0d863452 | 3883 | */ |
4136a0f7 | 3884 | STATIC OP * |
0d863452 RH |
3885 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
3886 | { | |
97aff369 | 3887 | dVAR; |
0d863452 RH |
3888 | dSP; |
3889 | ||
3890 | SV *e = TOPs; /* e is for 'expression' */ | |
3891 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
10edeb5d | 3892 | SV *This, *Other; /* 'This' (and Other to match) to play with C++ */ |
0d863452 RH |
3893 | MAGIC *mg; |
3894 | regexp *this_regex, *other_regex; | |
3895 | ||
3896 | # define NOT_EMPTY_PROTO(cv) (!SvPOK(cv) || SvCUR(cv) == 0) | |
3897 | ||
3898 | # define SM_REF(type) ( \ | |
10edeb5d JH |
3899 | (SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_##type) && (Other = e)) \ |
3900 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_##type) && (Other = d))) | |
0d863452 RH |
3901 | |
3902 | # define SM_CV_NEP /* Find a code ref without an empty prototype */ \ | |
10edeb5d JH |
3903 | ((SvROK(d) && (SvTYPE(This = SvRV(d)) == SVt_PVCV) \ |
3904 | && NOT_EMPTY_PROTO(This) && (Other = e)) \ | |
3905 | || (SvROK(e) && (SvTYPE(This = SvRV(e)) == SVt_PVCV) \ | |
3906 | && NOT_EMPTY_PROTO(This) && (Other = d))) | |
0d863452 RH |
3907 | |
3908 | # define SM_REGEX ( \ | |
10edeb5d JH |
3909 | (SvROK(d) && SvMAGICAL(This = SvRV(d)) \ |
3910 | && (mg = mg_find(This, PERL_MAGIC_qr)) \ | |
0d863452 | 3911 | && (this_regex = (regexp *)mg->mg_obj) \ |
10edeb5d | 3912 | && (Other = e)) \ |
0d863452 | 3913 | || \ |
10edeb5d JH |
3914 | (SvROK(e) && SvMAGICAL(This = SvRV(e)) \ |
3915 | && (mg = mg_find(This, PERL_MAGIC_qr)) \ | |
0d863452 | 3916 | && (this_regex = (regexp *)mg->mg_obj) \ |
10edeb5d | 3917 | && (Other = d)) ) |
0d863452 RH |
3918 | |
3919 | ||
3920 | # define SM_OTHER_REF(type) \ | |
10edeb5d | 3921 | (SvROK(Other) && SvTYPE(SvRV(Other)) == SVt_##type) |
0d863452 | 3922 | |
10edeb5d JH |
3923 | # define SM_OTHER_REGEX (SvROK(Other) && SvMAGICAL(SvRV(Other)) \ |
3924 | && (mg = mg_find(SvRV(Other), PERL_MAGIC_qr)) \ | |
0d863452 RH |
3925 | && (other_regex = (regexp *)mg->mg_obj)) |
3926 | ||
3927 | ||
3928 | # define SM_SEEN_THIS(sv) hv_exists_ent(seen_this, \ | |
98f4023c | 3929 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3930 | |
3931 | # define SM_SEEN_OTHER(sv) hv_exists_ent(seen_other, \ | |
98f4023c | 3932 | sv_2mortal(newSViv(PTR2IV(sv))), 0) |
0d863452 RH |
3933 | |
3934 | tryAMAGICbinSET(smart, 0); | |
3935 | ||
3936 | SP -= 2; /* Pop the values */ | |
3937 | ||
3938 | /* Take care only to invoke mg_get() once for each argument. | |
3939 | * Currently we do this by copying the SV if it's magical. */ | |
3940 | if (d) { | |
3941 | if (SvGMAGICAL(d)) | |
3942 | d = sv_mortalcopy(d); | |
3943 | } | |
3944 | else | |
3945 | d = &PL_sv_undef; | |
3946 | ||
3947 | assert(e); | |
3948 | if (SvGMAGICAL(e)) | |
3949 | e = sv_mortalcopy(e); | |
3950 | ||
3951 | if (SM_CV_NEP) { | |
3952 | I32 c; | |
3953 | ||
10edeb5d | 3954 | if ( SM_OTHER_REF(PVCV) && NOT_EMPTY_PROTO(SvRV(Other)) ) |
0d863452 | 3955 | { |
10edeb5d | 3956 | if (This == SvRV(Other)) |
0d863452 RH |
3957 | RETPUSHYES; |
3958 | else | |
3959 | RETPUSHNO; | |
3960 | } | |
3961 | ||
3962 | ENTER; | |
3963 | SAVETMPS; | |
3964 | PUSHMARK(SP); | |
10edeb5d | 3965 | PUSHs(Other); |
0d863452 | 3966 | PUTBACK; |
10edeb5d | 3967 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
3968 | SPAGAIN; |
3969 | if (c == 0) | |
3970 | PUSHs(&PL_sv_no); | |
3971 | else if (SvTEMP(TOPs)) | |
df528165 | 3972 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
3973 | FREETMPS; |
3974 | LEAVE; | |
3975 | RETURN; | |
3976 | } | |
3977 | else if (SM_REF(PVHV)) { | |
3978 | if (SM_OTHER_REF(PVHV)) { | |
3979 | /* Check that the key-sets are identical */ | |
3980 | HE *he; | |
10edeb5d | 3981 | HV *other_hv = (HV *) SvRV(Other); |
0d863452 RH |
3982 | bool tied = FALSE; |
3983 | bool other_tied = FALSE; | |
3984 | U32 this_key_count = 0, | |
3985 | other_key_count = 0; | |
3986 | ||
3987 | /* Tied hashes don't know how many keys they have. */ | |
10edeb5d | 3988 | if (SvTIED_mg(This, PERL_MAGIC_tied)) { |
0d863452 RH |
3989 | tied = TRUE; |
3990 | } | |
3991 | else if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) { | |
c445ea15 | 3992 | HV * const temp = other_hv; |
10edeb5d JH |
3993 | other_hv = (HV *) This; |
3994 | This = (SV *) temp; | |
0d863452 RH |
3995 | tied = TRUE; |
3996 | } | |
3997 | if (SvTIED_mg((SV *) other_hv, PERL_MAGIC_tied)) | |
3998 | other_tied = TRUE; | |
3999 | ||
10edeb5d | 4000 | if (!tied && HvUSEDKEYS((HV *) This) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4001 | RETPUSHNO; |
4002 | ||
4003 | /* The hashes have the same number of keys, so it suffices | |
4004 | to check that one is a subset of the other. */ | |
10edeb5d JH |
4005 | (void) hv_iterinit((HV *) This); |
4006 | while ( (he = hv_iternext((HV *) This)) ) { | |
0d863452 | 4007 | I32 key_len; |
c445ea15 | 4008 | char * const key = hv_iterkey(he, &key_len); |
0d863452 RH |
4009 | |
4010 | ++ this_key_count; | |
4011 | ||
4012 | if(!hv_exists(other_hv, key, key_len)) { | |
10edeb5d | 4013 | (void) hv_iterinit((HV *) This); /* reset iterator */ |
0d863452 RH |
4014 | RETPUSHNO; |
4015 | } | |
4016 | } | |
4017 | ||
4018 | if (other_tied) { | |
4019 | (void) hv_iterinit(other_hv); | |
4020 | while ( hv_iternext(other_hv) ) | |
4021 | ++other_key_count; | |
4022 | } | |
4023 | else | |
4024 | other_key_count = HvUSEDKEYS(other_hv); | |
4025 | ||
4026 | if (this_key_count != other_key_count) | |
4027 | RETPUSHNO; | |
4028 | else | |
4029 | RETPUSHYES; | |
4030 | } | |
4031 | else if (SM_OTHER_REF(PVAV)) { | |
10edeb5d | 4032 | AV * const other_av = (AV *) SvRV(Other); |
c445ea15 | 4033 | const I32 other_len = av_len(other_av) + 1; |
0d863452 RH |
4034 | I32 i; |
4035 | ||
10edeb5d | 4036 | if (HvUSEDKEYS((HV *) This) != other_len) |
0d863452 RH |
4037 | RETPUSHNO; |
4038 | ||
4039 | for(i = 0; i < other_len; ++i) { | |
c445ea15 | 4040 | SV ** const svp = av_fetch(other_av, i, FALSE); |
0d863452 RH |
4041 | char *key; |
4042 | STRLEN key_len; | |
4043 | ||
4044 | if (!svp) /* ??? When can this happen? */ | |
4045 | RETPUSHNO; | |
4046 | ||
4047 | key = SvPV(*svp, key_len); | |
10edeb5d | 4048 | if(!hv_exists((HV *) This, key, key_len)) |
0d863452 RH |
4049 | RETPUSHNO; |
4050 | } | |
4051 | RETPUSHYES; | |
4052 | } | |
4053 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 4054 | PMOP * const matcher = make_matcher(other_regex); |
0d863452 RH |
4055 | HE *he; |
4056 | ||
10edeb5d JH |
4057 | (void) hv_iterinit((HV *) This); |
4058 | while ( (he = hv_iternext((HV *) This)) ) { | |
0d863452 | 4059 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
10edeb5d | 4060 | (void) hv_iterinit((HV *) This); |
0d863452 RH |
4061 | destroy_matcher(matcher); |
4062 | RETPUSHYES; | |
4063 | } | |
4064 | } | |
4065 | destroy_matcher(matcher); | |
4066 | RETPUSHNO; | |
4067 | } | |
4068 | else { | |
10edeb5d | 4069 | if (hv_exists_ent((HV *) This, Other, 0)) |
0d863452 RH |
4070 | RETPUSHYES; |
4071 | else | |
4072 | RETPUSHNO; | |
4073 | } | |
4074 | } | |
4075 | else if (SM_REF(PVAV)) { | |
4076 | if (SM_OTHER_REF(PVAV)) { | |
10edeb5d JH |
4077 | AV *other_av = (AV *) SvRV(Other); |
4078 | if (av_len((AV *) This) != av_len(other_av)) | |
0d863452 RH |
4079 | RETPUSHNO; |
4080 | else { | |
4081 | I32 i; | |
c445ea15 | 4082 | const I32 other_len = av_len(other_av); |
0d863452 | 4083 | |
a0714e2c | 4084 | if (NULL == seen_this) { |
0d863452 RH |
4085 | seen_this = newHV(); |
4086 | (void) sv_2mortal((SV *) seen_this); | |
4087 | } | |
a0714e2c | 4088 | if (NULL == seen_other) { |
0d863452 RH |
4089 | seen_this = newHV(); |
4090 | (void) sv_2mortal((SV *) seen_other); | |
4091 | } | |
4092 | for(i = 0; i <= other_len; ++i) { | |
10edeb5d | 4093 | SV * const * const this_elem = av_fetch((AV *)This, i, FALSE); |
c445ea15 AL |
4094 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4095 | ||
0d863452 RH |
4096 | if (!this_elem || !other_elem) { |
4097 | if (this_elem || other_elem) | |
4098 | RETPUSHNO; | |
4099 | } | |
4100 | else if (SM_SEEN_THIS(*this_elem) | |
4101 | || SM_SEEN_OTHER(*other_elem)) | |
4102 | { | |
4103 | if (*this_elem != *other_elem) | |
4104 | RETPUSHNO; | |
4105 | } | |
4106 | else { | |
04fe65b0 RGS |
4107 | (void)hv_store_ent(seen_this, |
4108 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4109 | &PL_sv_undef, 0); | |
4110 | (void)hv_store_ent(seen_other, | |
4111 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4112 | &PL_sv_undef, 0); | |
0d863452 RH |
4113 | PUSHs(*this_elem); |
4114 | PUSHs(*other_elem); | |
4115 | ||
4116 | PUTBACK; | |
4117 | (void) do_smartmatch(seen_this, seen_other); | |
4118 | SPAGAIN; | |
4119 | ||
4120 | if (!SvTRUEx(POPs)) | |
4121 | RETPUSHNO; | |
4122 | } | |
4123 | } | |
4124 | RETPUSHYES; | |
4125 | } | |
4126 | } | |
4127 | else if (SM_OTHER_REGEX) { | |
c445ea15 | 4128 | PMOP * const matcher = make_matcher(other_regex); |
10edeb5d | 4129 | const I32 this_len = av_len((AV *) This); |
0d863452 | 4130 | I32 i; |
0d863452 RH |
4131 | |
4132 | for(i = 0; i <= this_len; ++i) { | |
10edeb5d | 4133 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); |
0d863452 RH |
4134 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4135 | destroy_matcher(matcher); | |
4136 | RETPUSHYES; | |
4137 | } | |
4138 | } | |
4139 | destroy_matcher(matcher); | |
4140 | RETPUSHNO; | |
4141 | } | |
10edeb5d | 4142 | else if (SvIOK(Other) || SvNOK(Other)) { |
0d863452 RH |
4143 | I32 i; |
4144 | ||
10edeb5d JH |
4145 | for(i = 0; i <= AvFILL((AV *) This); ++i) { |
4146 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); | |
0d863452 RH |
4147 | if (!svp) |
4148 | continue; | |
4149 | ||
10edeb5d | 4150 | PUSHs(Other); |
0d863452 RH |
4151 | PUSHs(*svp); |
4152 | PUTBACK; | |
a98fe34d | 4153 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4154 | (void) pp_i_eq(); |
4155 | else | |
4156 | (void) pp_eq(); | |
4157 | SPAGAIN; | |
4158 | if (SvTRUEx(POPs)) | |
4159 | RETPUSHYES; | |
4160 | } | |
4161 | RETPUSHNO; | |
4162 | } | |
10edeb5d JH |
4163 | else if (SvPOK(Other)) { |
4164 | const I32 this_len = av_len((AV *) This); | |
0d863452 | 4165 | I32 i; |
0d863452 RH |
4166 | |
4167 | for(i = 0; i <= this_len; ++i) { | |
10edeb5d | 4168 | SV * const * const svp = av_fetch((AV *)This, i, FALSE); |
0d863452 RH |
4169 | if (!svp) |
4170 | continue; | |
4171 | ||
10edeb5d | 4172 | PUSHs(Other); |
0d863452 RH |
4173 | PUSHs(*svp); |
4174 | PUTBACK; | |
4175 | (void) pp_seq(); | |
4176 | SPAGAIN; | |
4177 | if (SvTRUEx(POPs)) | |
4178 | RETPUSHYES; | |
4179 | } | |
4180 | RETPUSHNO; | |
4181 | } | |
4182 | } | |
4183 | else if (!SvOK(d) || !SvOK(e)) { | |
4184 | if (!SvOK(d) && !SvOK(e)) | |
4185 | RETPUSHYES; | |
4186 | else | |
4187 | RETPUSHNO; | |
4188 | } | |
4189 | else if (SM_REGEX) { | |
c445ea15 | 4190 | PMOP * const matcher = make_matcher(this_regex); |
0d863452 RH |
4191 | |
4192 | PUTBACK; | |
10edeb5d | 4193 | PUSHs(matcher_matches_sv(matcher, Other) |
0d863452 RH |
4194 | ? &PL_sv_yes |
4195 | : &PL_sv_no); | |
4196 | destroy_matcher(matcher); | |
4197 | RETURN; | |
4198 | } | |
4199 | else if (SM_REF(PVCV)) { | |
4200 | I32 c; | |
4201 | /* This must be a null-prototyped sub, because we | |
4202 | already checked for the other kind. */ | |
4203 | ||
4204 | ENTER; | |
4205 | SAVETMPS; | |
4206 | PUSHMARK(SP); | |
4207 | PUTBACK; | |
10edeb5d | 4208 | c = call_sv(This, G_SCALAR); |
0d863452 RH |
4209 | SPAGAIN; |
4210 | if (c == 0) | |
4211 | PUSHs(&PL_sv_undef); | |
4212 | else if (SvTEMP(TOPs)) | |
df528165 | 4213 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4214 | |
4215 | if (SM_OTHER_REF(PVCV)) { | |
4216 | /* This one has to be null-proto'd too. | |
4217 | Call both of 'em, and compare the results */ | |
4218 | PUSHMARK(SP); | |
10edeb5d | 4219 | c = call_sv(SvRV(Other), G_SCALAR); |
0d863452 RH |
4220 | SPAGAIN; |
4221 | if (c == 0) | |
4222 | PUSHs(&PL_sv_undef); | |
4223 | else if (SvTEMP(TOPs)) | |
df528165 | 4224 | SvREFCNT_inc_void(TOPs); |
0d863452 RH |
4225 | FREETMPS; |
4226 | LEAVE; | |
4227 | PUTBACK; | |
4228 | return pp_eq(); | |
4229 | } | |
4230 | ||
4231 | FREETMPS; | |
4232 | LEAVE; | |
4233 | RETURN; | |
4234 | } | |
10edeb5d JH |
4235 | else if ( ((SvIOK(d) || SvNOK(d)) && (This = d) && (Other = e)) |
4236 | || ((SvIOK(e) || SvNOK(e)) && (This = e) && (Other = d)) ) | |
0d863452 | 4237 | { |
10edeb5d | 4238 | if (SvPOK(Other) && !looks_like_number(Other)) { |
0d863452 RH |
4239 | /* String comparison */ |
4240 | PUSHs(d); PUSHs(e); | |
4241 | PUTBACK; | |
4242 | return pp_seq(); | |
4243 | } | |
4244 | /* Otherwise, numeric comparison */ | |
4245 | PUSHs(d); PUSHs(e); | |
4246 | PUTBACK; | |
a98fe34d | 4247 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4248 | (void) pp_i_eq(); |
4249 | else | |
4250 | (void) pp_eq(); | |
4251 | SPAGAIN; | |
4252 | if (SvTRUEx(POPs)) | |
4253 | RETPUSHYES; | |
4254 | else | |
4255 | RETPUSHNO; | |
4256 | } | |
4257 | ||
4258 | /* As a last resort, use string comparison */ | |
4259 | PUSHs(d); PUSHs(e); | |
4260 | PUTBACK; | |
4261 | return pp_seq(); | |
4262 | } | |
4263 | ||
4264 | PP(pp_enterwhen) | |
4265 | { | |
4266 | dVAR; dSP; | |
4267 | register PERL_CONTEXT *cx; | |
4268 | const I32 gimme = GIMME_V; | |
4269 | ||
4270 | /* This is essentially an optimization: if the match | |
4271 | fails, we don't want to push a context and then | |
4272 | pop it again right away, so we skip straight | |
4273 | to the op that follows the leavewhen. | |
4274 | */ | |
4275 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4276 | return cLOGOP->op_other->op_next; | |
4277 | ||
4278 | ENTER; | |
4279 | SAVETMPS; | |
4280 | ||
4281 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4282 | PUSHWHEN(cx); | |
4283 | ||
4284 | RETURN; | |
4285 | } | |
4286 | ||
4287 | PP(pp_leavewhen) | |
4288 | { | |
4289 | dVAR; dSP; | |
4290 | register PERL_CONTEXT *cx; | |
4291 | I32 gimme; | |
4292 | SV **newsp; | |
4293 | PMOP *newpm; | |
4294 | ||
4295 | POPBLOCK(cx,newpm); | |
4296 | assert(CxTYPE(cx) == CXt_WHEN); | |
4297 | ||
4298 | SP = newsp; | |
4299 | PUTBACK; | |
4300 | ||
4301 | PL_curpm = newpm; /* pop $1 et al */ | |
4302 | ||
4303 | LEAVE; | |
4304 | return NORMAL; | |
4305 | } | |
4306 | ||
4307 | PP(pp_continue) | |
4308 | { | |
4309 | dVAR; | |
4310 | I32 cxix; | |
4311 | register PERL_CONTEXT *cx; | |
4312 | I32 inner; | |
4313 | ||
4314 | cxix = dopoptowhen(cxstack_ix); | |
4315 | if (cxix < 0) | |
4316 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4317 | if (cxix < cxstack_ix) | |
4318 | dounwind(cxix); | |
4319 | ||
4320 | /* clear off anything above the scope we're re-entering */ | |
4321 | inner = PL_scopestack_ix; | |
4322 | TOPBLOCK(cx); | |
4323 | if (PL_scopestack_ix < inner) | |
4324 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4325 | PL_curcop = cx->blk_oldcop; | |
4326 | return cx->blk_givwhen.leave_op; | |
4327 | } | |
4328 | ||
4329 | PP(pp_break) | |
4330 | { | |
4331 | dVAR; | |
4332 | I32 cxix; | |
4333 | register PERL_CONTEXT *cx; | |
4334 | I32 inner; | |
4335 | ||
4336 | cxix = dopoptogiven(cxstack_ix); | |
4337 | if (cxix < 0) { | |
4338 | if (PL_op->op_flags & OPf_SPECIAL) | |
4339 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4340 | else | |
4341 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4342 | } | |
4343 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4344 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4345 | ||
4346 | if (cxix < cxstack_ix) | |
4347 | dounwind(cxix); | |
4348 | ||
4349 | /* clear off anything above the scope we're re-entering */ | |
4350 | inner = PL_scopestack_ix; | |
4351 | TOPBLOCK(cx); | |
4352 | if (PL_scopestack_ix < inner) | |
4353 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4354 | PL_curcop = cx->blk_oldcop; | |
4355 | ||
4356 | if (CxFOREACH(cx)) | |
022eaa24 | 4357 | return CX_LOOP_NEXTOP_GET(cx); |
0d863452 RH |
4358 | else |
4359 | return cx->blk_givwhen.leave_op; | |
4360 | } | |
4361 | ||
a1b95068 | 4362 | STATIC OP * |
cea2e8a9 | 4363 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4364 | { |
4365 | STRLEN len; | |
4366 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4367 | register char * const send = s + len; |
4368 | register char *base = NULL; | |
a0d0e21e | 4369 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4370 | bool noblank = FALSE; |
4371 | bool repeat = FALSE; | |
a0d0e21e | 4372 | bool postspace = FALSE; |
dea28490 JJ |
4373 | U32 *fops; |
4374 | register U32 *fpc; | |
cbbf8932 | 4375 | U32 *linepc = NULL; |
a0d0e21e LW |
4376 | register I32 arg; |
4377 | bool ischop; | |
a1b95068 WL |
4378 | bool unchopnum = FALSE; |
4379 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4380 | |
55497cff | 4381 | if (len == 0) |
cea2e8a9 | 4382 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4383 | |
815f25c6 DM |
4384 | /* estimate the buffer size needed */ |
4385 | for (base = s; s <= send; s++) { | |
a1b95068 | 4386 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4387 | maxops += 10; |
4388 | } | |
4389 | s = base; | |
c445ea15 | 4390 | base = NULL; |
815f25c6 | 4391 | |
a02a5408 | 4392 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4393 | fpc = fops; |
4394 | ||
4395 | if (s < send) { | |
4396 | linepc = fpc; | |
4397 | *fpc++ = FF_LINEMARK; | |
4398 | noblank = repeat = FALSE; | |
4399 | base = s; | |
4400 | } | |
4401 | ||
4402 | while (s <= send) { | |
4403 | switch (*s++) { | |
4404 | default: | |
4405 | skipspaces = 0; | |
4406 | continue; | |
4407 | ||
4408 | case '~': | |
4409 | if (*s == '~') { | |
4410 | repeat = TRUE; | |
4411 | *s = ' '; | |
4412 | } | |
4413 | noblank = TRUE; | |
4414 | s[-1] = ' '; | |
4415 | /* FALL THROUGH */ | |
4416 | case ' ': case '\t': | |
4417 | skipspaces++; | |
4418 | continue; | |
a1b95068 WL |
4419 | case 0: |
4420 | if (s < send) { | |
4421 | skipspaces = 0; | |
4422 | continue; | |
4423 | } /* else FALL THROUGH */ | |
4424 | case '\n': | |
a0d0e21e LW |
4425 | arg = s - base; |
4426 | skipspaces++; | |
4427 | arg -= skipspaces; | |
4428 | if (arg) { | |
5f05dabc | 4429 | if (postspace) |
a0d0e21e | 4430 | *fpc++ = FF_SPACE; |
a0d0e21e | 4431 | *fpc++ = FF_LITERAL; |
eb160463 | 4432 | *fpc++ = (U16)arg; |
a0d0e21e | 4433 | } |
5f05dabc | 4434 | postspace = FALSE; |
a0d0e21e LW |
4435 | if (s <= send) |
4436 | skipspaces--; | |
4437 | if (skipspaces) { | |
4438 | *fpc++ = FF_SKIP; | |
eb160463 | 4439 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4440 | } |
4441 | skipspaces = 0; | |
4442 | if (s <= send) | |
4443 | *fpc++ = FF_NEWLINE; | |
4444 | if (noblank) { | |
4445 | *fpc++ = FF_BLANK; | |
4446 | if (repeat) | |
4447 | arg = fpc - linepc + 1; | |
4448 | else | |
4449 | arg = 0; | |
eb160463 | 4450 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4451 | } |
4452 | if (s < send) { | |
4453 | linepc = fpc; | |
4454 | *fpc++ = FF_LINEMARK; | |
4455 | noblank = repeat = FALSE; | |
4456 | base = s; | |
4457 | } | |
4458 | else | |
4459 | s++; | |
4460 | continue; | |
4461 | ||
4462 | case '@': | |
4463 | case '^': | |
4464 | ischop = s[-1] == '^'; | |
4465 | ||
4466 | if (postspace) { | |
4467 | *fpc++ = FF_SPACE; | |
4468 | postspace = FALSE; | |
4469 | } | |
4470 | arg = (s - base) - 1; | |
4471 | if (arg) { | |
4472 | *fpc++ = FF_LITERAL; | |
eb160463 | 4473 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4474 | } |
4475 | ||
4476 | base = s - 1; | |
4477 | *fpc++ = FF_FETCH; | |
4478 | if (*s == '*') { | |
4479 | s++; | |
a1b95068 WL |
4480 | *fpc++ = 2; /* skip the @* or ^* */ |
4481 | if (ischop) { | |
4482 | *fpc++ = FF_LINESNGL; | |
4483 | *fpc++ = FF_CHOP; | |
4484 | } else | |
4485 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4486 | } |
4487 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4488 | arg = ischop ? 512 : 0; | |
4489 | base = s - 1; | |
4490 | while (*s == '#') | |
4491 | s++; | |
4492 | if (*s == '.') { | |
06b5626a | 4493 | const char * const f = ++s; |
a0d0e21e LW |
4494 | while (*s == '#') |
4495 | s++; | |
4496 | arg |= 256 + (s - f); | |
4497 | } | |
4498 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4499 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4500 | *fpc++ = (U16)arg; |
a1b95068 | 4501 | unchopnum |= ! ischop; |
784707d5 JP |
4502 | } |
4503 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4504 | arg = ischop ? 512 : 0; | |
4505 | base = s - 1; | |
4506 | s++; /* skip the '0' first */ | |
4507 | while (*s == '#') | |
4508 | s++; | |
4509 | if (*s == '.') { | |
06b5626a | 4510 | const char * const f = ++s; |
784707d5 JP |
4511 | while (*s == '#') |
4512 | s++; | |
4513 | arg |= 256 + (s - f); | |
4514 | } | |
4515 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4516 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4517 | *fpc++ = (U16)arg; |
a1b95068 | 4518 | unchopnum |= ! ischop; |
a0d0e21e LW |
4519 | } |
4520 | else { | |
4521 | I32 prespace = 0; | |
4522 | bool ismore = FALSE; | |
4523 | ||
4524 | if (*s == '>') { | |
4525 | while (*++s == '>') ; | |
4526 | prespace = FF_SPACE; | |
4527 | } | |
4528 | else if (*s == '|') { | |
4529 | while (*++s == '|') ; | |
4530 | prespace = FF_HALFSPACE; | |
4531 | postspace = TRUE; | |
4532 | } | |
4533 | else { | |
4534 | if (*s == '<') | |
4535 | while (*++s == '<') ; | |
4536 | postspace = TRUE; | |
4537 | } | |
4538 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4539 | s += 3; | |
4540 | ismore = TRUE; | |
4541 | } | |
4542 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4543 | ||
4544 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4545 | ||
4546 | if (prespace) | |
eb160463 | 4547 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4548 | *fpc++ = FF_ITEM; |
4549 | if (ismore) | |
4550 | *fpc++ = FF_MORE; | |
4551 | if (ischop) | |
4552 | *fpc++ = FF_CHOP; | |
4553 | } | |
4554 | base = s; | |
4555 | skipspaces = 0; | |
4556 | continue; | |
4557 | } | |
4558 | } | |
4559 | *fpc++ = FF_END; | |
4560 | ||
815f25c6 | 4561 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4562 | arg = fpc - fops; |
4563 | { /* need to jump to the next word */ | |
4564 | int z; | |
4565 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4566 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4567 | s = SvPVX(sv) + SvCUR(sv) + z; |
4568 | } | |
dea28490 | 4569 | Copy(fops, s, arg, U32); |
a0d0e21e | 4570 | Safefree(fops); |
c445ea15 | 4571 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4572 | SvCOMPILED_on(sv); |
a1b95068 | 4573 | |
bfed75c6 | 4574 | if (unchopnum && repeat) |
a1b95068 WL |
4575 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4576 | return 0; | |
4577 | } | |
4578 | ||
4579 | ||
4580 | STATIC bool | |
4581 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4582 | { | |
4583 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4584 | NV pwr = 1; | |
4585 | NV eps = 0.5; | |
4586 | bool res = FALSE; | |
4587 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4588 | ||
4589 | if (frcsize & 256) | |
4590 | intsize--; | |
4591 | frcsize &= 255; | |
4592 | intsize -= frcsize; | |
4593 | ||
4594 | while (intsize--) pwr *= 10.0; | |
4595 | while (frcsize--) eps /= 10.0; | |
4596 | ||
4597 | if( value >= 0 ){ | |
4598 | if (value + eps >= pwr) | |
4599 | res = TRUE; | |
4600 | } else { | |
4601 | if (value - eps <= -pwr) | |
4602 | res = TRUE; | |
4603 | } | |
4604 | return res; | |
a0d0e21e | 4605 | } |
4e35701f | 4606 | |
bbed91b5 | 4607 | static I32 |
0bd48802 | 4608 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4609 | { |
27da23d5 | 4610 | dVAR; |
0bd48802 | 4611 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4612 | const int filter_has_file = IoLINES(datasv); |
0bd48802 AL |
4613 | SV * const filter_state = (SV *)IoTOP_GV(datasv); |
4614 | SV * const filter_sub = (SV *)IoBOTTOM_GV(datasv); | |
941a98a0 | 4615 | int status = 0; |
ec0b63d7 | 4616 | SV *upstream; |
941a98a0 | 4617 | STRLEN got_len; |
95b63a38 | 4618 | const char *got_p = NULL; |
941a98a0 | 4619 | const char *prune_from = NULL; |
34113e50 | 4620 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
4621 | STRLEN umaxlen; |
4622 | ||
4623 | assert(maxlen >= 0); | |
4624 | umaxlen = maxlen; | |
5675696b | 4625 | |
bbed91b5 KF |
4626 | /* I was having segfault trouble under Linux 2.2.5 after a |
4627 | parse error occured. (Had to hack around it with a test | |
13765c85 | 4628 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
4629 | not sure where the trouble is yet. XXX */ |
4630 | ||
941a98a0 | 4631 | if (IoFMT_GV(datasv)) { |
937b367d NC |
4632 | SV *const cache = (SV *)IoFMT_GV(datasv); |
4633 | if (SvOK(cache)) { | |
4634 | STRLEN cache_len; | |
4635 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
4636 | STRLEN take = 0; |
4637 | ||
bb7a0f54 | 4638 | if (umaxlen) { |
941a98a0 NC |
4639 | /* Running in block mode and we have some cached data already. |
4640 | */ | |
bb7a0f54 | 4641 | if (cache_len >= umaxlen) { |
941a98a0 NC |
4642 | /* In fact, so much data we don't even need to call |
4643 | filter_read. */ | |
bb7a0f54 | 4644 | take = umaxlen; |
941a98a0 NC |
4645 | } |
4646 | } else { | |
10edeb5d JH |
4647 | const char *const first_nl = |
4648 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
4649 | if (first_nl) { |
4650 | take = first_nl + 1 - cache_p; | |
4651 | } | |
4652 | } | |
4653 | if (take) { | |
4654 | sv_catpvn(buf_sv, cache_p, take); | |
4655 | sv_chop(cache, cache_p + take); | |
937b367d NC |
4656 | /* Definately not EOF */ |
4657 | return 1; | |
4658 | } | |
941a98a0 | 4659 | |
937b367d | 4660 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
4661 | if (umaxlen) { |
4662 | umaxlen -= cache_len; | |
941a98a0 | 4663 | } |
937b367d | 4664 | SvOK_off(cache); |
34113e50 | 4665 | read_from_cache = TRUE; |
937b367d NC |
4666 | } |
4667 | } | |
ec0b63d7 | 4668 | |
34113e50 NC |
4669 | /* Filter API says that the filter appends to the contents of the buffer. |
4670 | Usually the buffer is "", so the details don't matter. But if it's not, | |
4671 | then clearly what it contains is already filtered by this filter, so we | |
4672 | don't want to pass it in a second time. | |
4673 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
4674 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
4675 | ? sv_newmortal() : buf_sv; | |
4676 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 4677 | |
bbed91b5 | 4678 | if (filter_has_file) { |
67e70b33 | 4679 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
4680 | } |
4681 | ||
34113e50 | 4682 | if (filter_sub && status >= 0) { |
39644a26 | 4683 | dSP; |
bbed91b5 KF |
4684 | int count; |
4685 | ||
4686 | ENTER; | |
4687 | SAVE_DEFSV; | |
4688 | SAVETMPS; | |
4689 | EXTEND(SP, 2); | |
4690 | ||
5675696b | 4691 | DEFSV = upstream; |
bbed91b5 | 4692 | PUSHMARK(SP); |
67e70b33 | 4693 | PUSHs(sv_2mortal(newSViv(0))); |
bbed91b5 KF |
4694 | if (filter_state) { |
4695 | PUSHs(filter_state); | |
4696 | } | |
4697 | PUTBACK; | |
4698 | count = call_sv(filter_sub, G_SCALAR); | |
4699 | SPAGAIN; | |
4700 | ||
4701 | if (count > 0) { | |
4702 | SV *out = POPs; | |
4703 | if (SvOK(out)) { | |
941a98a0 | 4704 | status = SvIV(out); |
bbed91b5 KF |
4705 | } |
4706 | } | |
4707 | ||
4708 | PUTBACK; | |
4709 | FREETMPS; | |
4710 | LEAVE; | |
4711 | } | |
4712 | ||
941a98a0 NC |
4713 | if(SvOK(upstream)) { |
4714 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
4715 | if (umaxlen) { |
4716 | if (got_len > umaxlen) { | |
4717 | prune_from = got_p + umaxlen; | |
937b367d | 4718 | } |
941a98a0 | 4719 | } else { |
10edeb5d JH |
4720 | const char *const first_nl = |
4721 | (const char *)memchr(got_p, '\n', got_len); | |
941a98a0 NC |
4722 | if (first_nl && first_nl + 1 < got_p + got_len) { |
4723 | /* There's a second line here... */ | |
4724 | prune_from = first_nl + 1; | |
937b367d | 4725 | } |
937b367d NC |
4726 | } |
4727 | } | |
941a98a0 NC |
4728 | if (prune_from) { |
4729 | /* Oh. Too long. Stuff some in our cache. */ | |
4730 | STRLEN cached_len = got_p + got_len - prune_from; | |
4731 | SV *cache = (SV *)IoFMT_GV(datasv); | |
4732 | ||
4733 | if (!cache) { | |
bb7a0f54 | 4734 | IoFMT_GV(datasv) = (GV*) (cache = newSV(got_len - umaxlen)); |
941a98a0 NC |
4735 | } else if (SvOK(cache)) { |
4736 | /* Cache should be empty. */ | |
4737 | assert(!SvCUR(cache)); | |
4738 | } | |
4739 | ||
4740 | sv_setpvn(cache, prune_from, cached_len); | |
4741 | /* If you ask for block mode, you may well split UTF-8 characters. | |
4742 | "If it breaks, you get to keep both parts" | |
4743 | (Your code is broken if you don't put them back together again | |
4744 | before something notices.) */ | |
4745 | if (SvUTF8(upstream)) { | |
4746 | SvUTF8_on(cache); | |
4747 | } | |
4748 | SvCUR_set(upstream, got_len - cached_len); | |
4749 | /* Can't yet be EOF */ | |
4750 | if (status == 0) | |
4751 | status = 1; | |
4752 | } | |
937b367d | 4753 | |
34113e50 NC |
4754 | /* If they are at EOF but buf_sv has something in it, then they may never |
4755 | have touched the SV upstream, so it may be undefined. If we naively | |
4756 | concatenate it then we get a warning about use of uninitialised value. | |
4757 | */ | |
4758 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
4759 | sv_catsv(buf_sv, upstream); |
4760 | } | |
4761 | ||
941a98a0 | 4762 | if (status <= 0) { |
bbed91b5 | 4763 | IoLINES(datasv) = 0; |
937b367d | 4764 | SvREFCNT_dec(IoFMT_GV(datasv)); |
bbed91b5 KF |
4765 | if (filter_state) { |
4766 | SvREFCNT_dec(filter_state); | |
a0714e2c | 4767 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
4768 | } |
4769 | if (filter_sub) { | |
4770 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 4771 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 4772 | } |
0bd48802 | 4773 | filter_del(S_run_user_filter); |
bbed91b5 | 4774 | } |
34113e50 NC |
4775 | if (status == 0 && read_from_cache) { |
4776 | /* If we read some data from the cache (and by getting here it implies | |
4777 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
4778 | report that to our caller. */ | |
4779 | return 1; | |
4780 | } | |
941a98a0 | 4781 | return status; |
bbed91b5 | 4782 | } |
84d4ea48 | 4783 | |
be4b629d CN |
4784 | /* perhaps someone can come up with a better name for |
4785 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 4786 | static bool |
5f66b61c | 4787 | S_path_is_absolute(const char *name) |
be4b629d CN |
4788 | { |
4789 | if (PERL_FILE_IS_ABSOLUTE(name) | |
4790 | #ifdef MACOS_TRADITIONAL | |
0bd48802 | 4791 | || (*name == ':') |
be4b629d CN |
4792 | #else |
4793 | || (*name == '.' && (name[1] == '/' || | |
0bd48802 | 4794 | (name[1] == '.' && name[2] == '/'))) |
be4b629d | 4795 | #endif |
0bd48802 | 4796 | ) |
be4b629d CN |
4797 | { |
4798 | return TRUE; | |
4799 | } | |
4800 | else | |
4801 | return FALSE; | |
4802 | } | |
241d1a3b NC |
4803 | |
4804 | /* | |
4805 | * Local variables: | |
4806 | * c-indentation-style: bsd | |
4807 | * c-basic-offset: 4 | |
4808 | * indent-tabs-mode: t | |
4809 | * End: | |
4810 | * | |
37442d52 RGS |
4811 | * ex: set ts=8 sts=4 sw=4 noet: |
4812 | */ |