Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* pp_ctl.c |
2 | * | |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
a0d0e21e LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
9 | */ | |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * Now far ahead the Road has gone, |
13 | * And I must follow, if I can, | |
14 | * Pursuing it with eager feet, | |
15 | * Until it joins some larger way | |
16 | * Where many paths and errands meet. | |
17 | * And whither then? I cannot say. | |
18 | * | |
19 | * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"] | |
a0d0e21e LW |
20 | */ |
21 | ||
166f8a29 DM |
22 | /* This file contains control-oriented pp ("push/pop") functions that |
23 | * execute the opcodes that make up a perl program. A typical pp function | |
24 | * expects to find its arguments on the stack, and usually pushes its | |
25 | * results onto the stack, hence the 'pp' terminology. Each OP structure | |
26 | * contains a pointer to the relevant pp_foo() function. | |
27 | * | |
28 | * Control-oriented means things like pp_enteriter() and pp_next(), which | |
29 | * alter the flow of control of the program. | |
30 | */ | |
31 | ||
32 | ||
a0d0e21e | 33 | #include "EXTERN.h" |
864dbfa3 | 34 | #define PERL_IN_PP_CTL_C |
a0d0e21e LW |
35 | #include "perl.h" |
36 | ||
37 | #ifndef WORD_ALIGN | |
dea28490 | 38 | #define WORD_ALIGN sizeof(U32) |
a0d0e21e LW |
39 | #endif |
40 | ||
54310121 | 41 | #define DOCATCH(o) ((CATCH_GET == TRUE) ? docatch(o) : (o)) |
1e422769 | 42 | |
94fcd414 NC |
43 | #define dopoptosub(plop) dopoptosub_at(cxstack, (plop)) |
44 | ||
a0d0e21e LW |
45 | PP(pp_wantarray) |
46 | { | |
97aff369 | 47 | dVAR; |
39644a26 | 48 | dSP; |
a0d0e21e LW |
49 | I32 cxix; |
50 | EXTEND(SP, 1); | |
51 | ||
52 | cxix = dopoptosub(cxstack_ix); | |
53 | if (cxix < 0) | |
54 | RETPUSHUNDEF; | |
55 | ||
54310121 | 56 | switch (cxstack[cxix].blk_gimme) { |
57 | case G_ARRAY: | |
a0d0e21e | 58 | RETPUSHYES; |
54310121 | 59 | case G_SCALAR: |
a0d0e21e | 60 | RETPUSHNO; |
54310121 | 61 | default: |
62 | RETPUSHUNDEF; | |
63 | } | |
a0d0e21e LW |
64 | } |
65 | ||
2cd61cdb IZ |
66 | PP(pp_regcreset) |
67 | { | |
97aff369 | 68 | dVAR; |
2cd61cdb IZ |
69 | /* XXXX Should store the old value to allow for tie/overload - and |
70 | restore in regcomp, where marked with XXXX. */ | |
3280af22 | 71 | PL_reginterp_cnt = 0; |
0b4182de | 72 | TAINT_NOT; |
2cd61cdb IZ |
73 | return NORMAL; |
74 | } | |
75 | ||
b3eb6a9b GS |
76 | PP(pp_regcomp) |
77 | { | |
97aff369 | 78 | dVAR; |
39644a26 | 79 | dSP; |
a0d0e21e | 80 | register PMOP *pm = (PMOP*)cLOGOP->op_other; |
a0d0e21e | 81 | SV *tmpstr; |
84679df5 | 82 | REGEXP *re = NULL; |
bfed75c6 | 83 | |
4b5a0d1c | 84 | /* prevent recompiling under /o and ithreads. */ |
3db8f154 | 85 | #if defined(USE_ITHREADS) |
131b3ad0 DM |
86 | if (pm->op_pmflags & PMf_KEEP && PM_GETRE(pm)) { |
87 | if (PL_op->op_flags & OPf_STACKED) { | |
88 | dMARK; | |
89 | SP = MARK; | |
90 | } | |
91 | else | |
92 | (void)POPs; | |
93 | RETURN; | |
94 | } | |
513629ba | 95 | #endif |
d4b87e75 BM |
96 | |
97 | #define tryAMAGICregexp(rx) \ | |
98 | STMT_START { \ | |
99 | if (SvROK(rx) && SvAMAGIC(rx)) { \ | |
100 | SV *sv = AMG_CALLun(rx, regexp); \ | |
101 | if (sv) { \ | |
102 | if (SvROK(sv)) \ | |
103 | sv = SvRV(sv); \ | |
104 | if (SvTYPE(sv) != SVt_REGEXP) \ | |
105 | Perl_croak(aTHX_ "Overloaded qr did not return a REGEXP"); \ | |
106 | rx = sv; \ | |
107 | } \ | |
108 | } \ | |
109 | } STMT_END | |
110 | ||
111 | ||
131b3ad0 DM |
112 | if (PL_op->op_flags & OPf_STACKED) { |
113 | /* multiple args; concatentate them */ | |
114 | dMARK; dORIGMARK; | |
115 | tmpstr = PAD_SV(ARGTARG); | |
76f68e9b | 116 | sv_setpvs(tmpstr, ""); |
131b3ad0 | 117 | while (++MARK <= SP) { |
d4b87e75 | 118 | SV *msv = *MARK; |
131b3ad0 DM |
119 | if (PL_amagic_generation) { |
120 | SV *sv; | |
d4b87e75 BM |
121 | |
122 | tryAMAGICregexp(msv); | |
123 | ||
124 | if ((SvAMAGIC(tmpstr) || SvAMAGIC(msv)) && | |
125 | (sv = amagic_call(tmpstr, msv, concat_amg, AMGf_assign))) | |
131b3ad0 DM |
126 | { |
127 | sv_setsv(tmpstr, sv); | |
128 | continue; | |
129 | } | |
130 | } | |
d4b87e75 | 131 | sv_catsv(tmpstr, msv); |
131b3ad0 DM |
132 | } |
133 | SvSETMAGIC(tmpstr); | |
134 | SP = ORIGMARK; | |
135 | } | |
d4b87e75 | 136 | else { |
131b3ad0 | 137 | tmpstr = POPs; |
d4b87e75 BM |
138 | tryAMAGICregexp(tmpstr); |
139 | } | |
140 | ||
141 | #undef tryAMAGICregexp | |
513629ba | 142 | |
b3eb6a9b | 143 | if (SvROK(tmpstr)) { |
d8f6592e | 144 | SV * const sv = SvRV(tmpstr); |
5c35adbb | 145 | if (SvTYPE(sv) == SVt_REGEXP) |
d2f13c59 | 146 | re = (REGEXP*) sv; |
c277df42 | 147 | } |
d4b87e75 BM |
148 | else if (SvTYPE(tmpstr) == SVt_REGEXP) |
149 | re = (REGEXP*) tmpstr; | |
150 | ||
5c35adbb | 151 | if (re) { |
f0826785 | 152 | re = reg_temp_copy(NULL, re); |
aaa362c4 | 153 | ReREFCNT_dec(PM_GETRE(pm)); |
28d8d7f4 | 154 | PM_SETRE(pm, re); |
c277df42 IZ |
155 | } |
156 | else { | |
e62f0680 | 157 | STRLEN len; |
3ab4a224 | 158 | const char *t = SvOK(tmpstr) ? SvPV_const(tmpstr, len) : ""; |
c737faaf | 159 | re = PM_GETRE(pm); |
14a49a24 | 160 | assert (re != (REGEXP*) &PL_sv_undef); |
c277df42 | 161 | |
20408e3c | 162 | /* Check against the last compiled regexp. */ |
a11c8683 | 163 | if (!re || !RX_PRECOMP(re) || RX_PRELEN(re) != len || |
220fc49f | 164 | memNE(RX_PRECOMP(re), t, len)) |
85aff577 | 165 | { |
07bc277f | 166 | const regexp_engine *eng = re ? RX_ENGINE(re) : NULL; |
c737faaf | 167 | U32 pm_flags = pm->op_pmflags & PMf_COMPILETIME; |
d8f6592e AL |
168 | if (re) { |
169 | ReREFCNT_dec(re); | |
14a49a24 NC |
170 | #ifdef USE_ITHREADS |
171 | PM_SETRE(pm, (REGEXP*) &PL_sv_undef); | |
172 | #else | |
4608196e | 173 | PM_SETRE(pm, NULL); /* crucial if regcomp aborts */ |
14a49a24 | 174 | #endif |
1e2e3d02 YO |
175 | } else if (PL_curcop->cop_hints_hash) { |
176 | SV *ptr = Perl_refcounted_he_fetch(aTHX_ PL_curcop->cop_hints_hash, 0, | |
177 | "regcomp", 7, 0, 0); | |
178 | if (ptr && SvIOK(ptr) && SvIV(ptr)) | |
179 | eng = INT2PTR(regexp_engine*,SvIV(ptr)); | |
c277df42 | 180 | } |
664e119d | 181 | |
533c011a | 182 | if (PL_op->op_flags & OPf_SPECIAL) |
3280af22 | 183 | PL_reginterp_cnt = I32_MAX; /* Mark as safe. */ |
a0d0e21e | 184 | |
b9ad30b4 NC |
185 | if (DO_UTF8(tmpstr)) { |
186 | assert (SvUTF8(tmpstr)); | |
187 | } else if (SvUTF8(tmpstr)) { | |
188 | /* Not doing UTF-8, despite what the SV says. Is this only if | |
189 | we're trapped in use 'bytes'? */ | |
190 | /* Make a copy of the octet sequence, but without the flag on, | |
191 | as the compiler now honours the SvUTF8 flag on tmpstr. */ | |
192 | STRLEN len; | |
193 | const char *const p = SvPV(tmpstr, len); | |
194 | tmpstr = newSVpvn_flags(p, len, SVs_TEMP); | |
195 | } | |
c737faaf | 196 | |
3ab4a224 AB |
197 | if (eng) |
198 | PM_SETRE(pm, CALLREGCOMP_ENG(eng, tmpstr, pm_flags)); | |
199 | else | |
200 | PM_SETRE(pm, CALLREGCOMP(tmpstr, pm_flags)); | |
c737faaf | 201 | |
f86aaa29 | 202 | PL_reginterp_cnt = 0; /* XXXX Be extra paranoid - needed |
2cd61cdb | 203 | inside tie/overload accessors. */ |
c277df42 | 204 | } |
4633a7c4 | 205 | } |
c737faaf YO |
206 | |
207 | re = PM_GETRE(pm); | |
a0d0e21e | 208 | |
72311751 | 209 | #ifndef INCOMPLETE_TAINTS |
3280af22 NIS |
210 | if (PL_tainting) { |
211 | if (PL_tainted) | |
07bc277f | 212 | RX_EXTFLAGS(re) |= RXf_TAINTED; |
72311751 | 213 | else |
07bc277f | 214 | RX_EXTFLAGS(re) &= ~RXf_TAINTED; |
72311751 GS |
215 | } |
216 | #endif | |
217 | ||
220fc49f | 218 | if (!RX_PRELEN(PM_GETRE(pm)) && PL_curpm) |
3280af22 | 219 | pm = PL_curpm; |
a0d0e21e | 220 | |
c737faaf YO |
221 | |
222 | #if !defined(USE_ITHREADS) | |
223 | /* can't change the optree at runtime either */ | |
224 | /* PMf_KEEP is handled differently under threads to avoid these problems */ | |
a0d0e21e | 225 | if (pm->op_pmflags & PMf_KEEP) { |
c90c0ff4 | 226 | pm->op_private &= ~OPpRUNTIME; /* no point compiling again */ |
533c011a | 227 | cLOGOP->op_first->op_next = PL_op->op_next; |
a0d0e21e | 228 | } |
c737faaf | 229 | #endif |
a0d0e21e LW |
230 | RETURN; |
231 | } | |
232 | ||
233 | PP(pp_substcont) | |
234 | { | |
97aff369 | 235 | dVAR; |
39644a26 | 236 | dSP; |
c09156bb | 237 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
901017d6 AL |
238 | register PMOP * const pm = (PMOP*) cLOGOP->op_other; |
239 | register SV * const dstr = cx->sb_dstr; | |
a0d0e21e LW |
240 | register char *s = cx->sb_s; |
241 | register char *m = cx->sb_m; | |
242 | char *orig = cx->sb_orig; | |
901017d6 | 243 | register REGEXP * const rx = cx->sb_rx; |
c445ea15 | 244 | SV *nsv = NULL; |
988e6e7e AE |
245 | REGEXP *old = PM_GETRE(pm); |
246 | if(old != rx) { | |
bfed75c6 | 247 | if(old) |
988e6e7e | 248 | ReREFCNT_dec(old); |
d6106309 | 249 | PM_SETRE(pm,ReREFCNT_inc(rx)); |
d8f2cf8a AB |
250 | } |
251 | ||
d9f97599 | 252 | rxres_restore(&cx->sb_rxres, rx); |
01b35787 | 253 | RX_MATCH_UTF8_set(rx, DO_UTF8(cx->sb_targ)); |
c90c0ff4 | 254 | |
a0d0e21e | 255 | if (cx->sb_iters++) { |
a3b680e6 | 256 | const I32 saviters = cx->sb_iters; |
a0d0e21e | 257 | if (cx->sb_iters > cx->sb_maxiters) |
cea2e8a9 | 258 | DIE(aTHX_ "Substitution loop"); |
a0d0e21e | 259 | |
48c036b1 GS |
260 | if (!(cx->sb_rxtainted & 2) && SvTAINTED(TOPs)) |
261 | cx->sb_rxtainted |= 2; | |
a0d0e21e | 262 | sv_catsv(dstr, POPs); |
2c296965 YO |
263 | /* XXX: adjust for positive offsets of \G for instance s/(.)\G//g with positive pos() */ |
264 | s -= RX_GOFS(rx); | |
a0d0e21e LW |
265 | |
266 | /* Are we done */ | |
2c296965 YO |
267 | if (CxONCE(cx) || s < orig || |
268 | !CALLREGEXEC(rx, s, cx->sb_strend, orig, | |
269 | (s == m) + RX_GOFS(rx), cx->sb_targ, NULL, | |
270 | ((cx->sb_rflags & REXEC_COPY_STR) | |
271 | ? (REXEC_IGNOREPOS|REXEC_NOT_FIRST) | |
272 | : (REXEC_COPY_STR|REXEC_IGNOREPOS|REXEC_NOT_FIRST)))) | |
a0d0e21e | 273 | { |
823a54a3 | 274 | SV * const targ = cx->sb_targ; |
748a9306 | 275 | |
078c425b JH |
276 | assert(cx->sb_strend >= s); |
277 | if(cx->sb_strend > s) { | |
278 | if (DO_UTF8(dstr) && !SvUTF8(targ)) | |
279 | sv_catpvn_utf8_upgrade(dstr, s, cx->sb_strend - s, nsv); | |
280 | else | |
281 | sv_catpvn(dstr, s, cx->sb_strend - s); | |
282 | } | |
48c036b1 | 283 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
9212bbba | 284 | |
f8c7b90f | 285 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
286 | if (SvIsCOW(targ)) { |
287 | sv_force_normal_flags(targ, SV_COW_DROP_PV); | |
288 | } else | |
289 | #endif | |
290 | { | |
8bd4d4c5 | 291 | SvPV_free(targ); |
ed252734 | 292 | } |
f880fe2f | 293 | SvPV_set(targ, SvPVX(dstr)); |
748a9306 LW |
294 | SvCUR_set(targ, SvCUR(dstr)); |
295 | SvLEN_set(targ, SvLEN(dstr)); | |
1aa99e6b IH |
296 | if (DO_UTF8(dstr)) |
297 | SvUTF8_on(targ); | |
6136c704 | 298 | SvPV_set(dstr, NULL); |
48c036b1 GS |
299 | |
300 | TAINT_IF(cx->sb_rxtainted & 1); | |
6e449a3a | 301 | mPUSHi(saviters - 1); |
48c036b1 | 302 | |
ffc61ed2 | 303 | (void)SvPOK_only_UTF8(targ); |
48c036b1 | 304 | TAINT_IF(cx->sb_rxtainted); |
a0d0e21e | 305 | SvSETMAGIC(targ); |
9212bbba | 306 | SvTAINT(targ); |
5cd24f17 | 307 | |
4633a7c4 | 308 | LEAVE_SCOPE(cx->sb_oldsave); |
a0d0e21e LW |
309 | POPSUBST(cx); |
310 | RETURNOP(pm->op_next); | |
311 | } | |
8e5e9ebe | 312 | cx->sb_iters = saviters; |
a0d0e21e | 313 | } |
07bc277f | 314 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
315 | m = s; |
316 | s = orig; | |
07bc277f | 317 | cx->sb_orig = orig = RX_SUBBEG(rx); |
a0d0e21e LW |
318 | s = orig + (m - s); |
319 | cx->sb_strend = s + (cx->sb_strend - m); | |
320 | } | |
07bc277f | 321 | cx->sb_m = m = RX_OFFS(rx)[0].start + orig; |
db79b45b | 322 | if (m > s) { |
bfed75c6 | 323 | if (DO_UTF8(dstr) && !SvUTF8(cx->sb_targ)) |
db79b45b JH |
324 | sv_catpvn_utf8_upgrade(dstr, s, m - s, nsv); |
325 | else | |
326 | sv_catpvn(dstr, s, m-s); | |
327 | } | |
07bc277f | 328 | cx->sb_s = RX_OFFS(rx)[0].end + orig; |
084916e3 | 329 | { /* Update the pos() information. */ |
44f8325f | 330 | SV * const sv = cx->sb_targ; |
084916e3 | 331 | MAGIC *mg; |
7a7f3e45 | 332 | SvUPGRADE(sv, SVt_PVMG); |
14befaf4 | 333 | if (!(mg = mg_find(sv, PERL_MAGIC_regex_global))) { |
d83f0a82 | 334 | #ifdef PERL_OLD_COPY_ON_WRITE |
51a9ea20 | 335 | if (SvIsCOW(sv)) |
d83f0a82 NC |
336 | sv_force_normal_flags(sv, 0); |
337 | #endif | |
338 | mg = sv_magicext(sv, NULL, PERL_MAGIC_regex_global, &PL_vtbl_mglob, | |
339 | NULL, 0); | |
084916e3 | 340 | } |
ce474962 | 341 | mg->mg_len = m - orig; |
084916e3 | 342 | } |
988e6e7e | 343 | if (old != rx) |
d6106309 | 344 | (void)ReREFCNT_inc(rx); |
d9f97599 GS |
345 | cx->sb_rxtainted |= RX_MATCH_TAINTED(rx); |
346 | rxres_save(&cx->sb_rxres, rx); | |
29f2e912 | 347 | RETURNOP(pm->op_pmstashstartu.op_pmreplstart); |
a0d0e21e LW |
348 | } |
349 | ||
c90c0ff4 | 350 | void |
864dbfa3 | 351 | Perl_rxres_save(pTHX_ void **rsp, REGEXP *rx) |
c90c0ff4 | 352 | { |
353 | UV *p = (UV*)*rsp; | |
354 | U32 i; | |
7918f24d NC |
355 | |
356 | PERL_ARGS_ASSERT_RXRES_SAVE; | |
96a5add6 | 357 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 358 | |
07bc277f | 359 | if (!p || p[1] < RX_NPARENS(rx)) { |
f8c7b90f | 360 | #ifdef PERL_OLD_COPY_ON_WRITE |
07bc277f | 361 | i = 7 + RX_NPARENS(rx) * 2; |
ed252734 | 362 | #else |
07bc277f | 363 | i = 6 + RX_NPARENS(rx) * 2; |
ed252734 | 364 | #endif |
c90c0ff4 | 365 | if (!p) |
a02a5408 | 366 | Newx(p, i, UV); |
c90c0ff4 | 367 | else |
368 | Renew(p, i, UV); | |
369 | *rsp = (void*)p; | |
370 | } | |
371 | ||
07bc277f | 372 | *p++ = PTR2UV(RX_MATCH_COPIED(rx) ? RX_SUBBEG(rx) : NULL); |
cf93c79d | 373 | RX_MATCH_COPIED_off(rx); |
c90c0ff4 | 374 | |
f8c7b90f | 375 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
376 | *p++ = PTR2UV(RX_SAVED_COPY(rx)); |
377 | RX_SAVED_COPY(rx) = NULL; | |
ed252734 NC |
378 | #endif |
379 | ||
07bc277f | 380 | *p++ = RX_NPARENS(rx); |
c90c0ff4 | 381 | |
07bc277f NC |
382 | *p++ = PTR2UV(RX_SUBBEG(rx)); |
383 | *p++ = (UV)RX_SUBLEN(rx); | |
384 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
385 | *p++ = (UV)RX_OFFS(rx)[i].start; | |
386 | *p++ = (UV)RX_OFFS(rx)[i].end; | |
c90c0ff4 | 387 | } |
388 | } | |
389 | ||
9c105995 NC |
390 | static void |
391 | S_rxres_restore(pTHX_ void **rsp, REGEXP *rx) | |
c90c0ff4 | 392 | { |
393 | UV *p = (UV*)*rsp; | |
394 | U32 i; | |
7918f24d NC |
395 | |
396 | PERL_ARGS_ASSERT_RXRES_RESTORE; | |
96a5add6 | 397 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 398 | |
ed252734 | 399 | RX_MATCH_COPY_FREE(rx); |
cf93c79d | 400 | RX_MATCH_COPIED_set(rx, *p); |
c90c0ff4 | 401 | *p++ = 0; |
402 | ||
f8c7b90f | 403 | #ifdef PERL_OLD_COPY_ON_WRITE |
bdd9a1b1 NC |
404 | if (RX_SAVED_COPY(rx)) |
405 | SvREFCNT_dec (RX_SAVED_COPY(rx)); | |
406 | RX_SAVED_COPY(rx) = INT2PTR(SV*,*p); | |
ed252734 NC |
407 | *p++ = 0; |
408 | #endif | |
409 | ||
07bc277f | 410 | RX_NPARENS(rx) = *p++; |
c90c0ff4 | 411 | |
07bc277f NC |
412 | RX_SUBBEG(rx) = INT2PTR(char*,*p++); |
413 | RX_SUBLEN(rx) = (I32)(*p++); | |
414 | for (i = 0; i <= RX_NPARENS(rx); ++i) { | |
415 | RX_OFFS(rx)[i].start = (I32)(*p++); | |
416 | RX_OFFS(rx)[i].end = (I32)(*p++); | |
c90c0ff4 | 417 | } |
418 | } | |
419 | ||
9c105995 NC |
420 | static void |
421 | S_rxres_free(pTHX_ void **rsp) | |
c90c0ff4 | 422 | { |
44f8325f | 423 | UV * const p = (UV*)*rsp; |
7918f24d NC |
424 | |
425 | PERL_ARGS_ASSERT_RXRES_FREE; | |
96a5add6 | 426 | PERL_UNUSED_CONTEXT; |
c90c0ff4 | 427 | |
428 | if (p) { | |
94010e71 NC |
429 | #ifdef PERL_POISON |
430 | void *tmp = INT2PTR(char*,*p); | |
431 | Safefree(tmp); | |
432 | if (*p) | |
7e337ee0 | 433 | PoisonFree(*p, 1, sizeof(*p)); |
94010e71 | 434 | #else |
56431972 | 435 | Safefree(INT2PTR(char*,*p)); |
94010e71 | 436 | #endif |
f8c7b90f | 437 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
438 | if (p[1]) { |
439 | SvREFCNT_dec (INT2PTR(SV*,p[1])); | |
440 | } | |
441 | #endif | |
c90c0ff4 | 442 | Safefree(p); |
4608196e | 443 | *rsp = NULL; |
c90c0ff4 | 444 | } |
445 | } | |
446 | ||
a0d0e21e LW |
447 | PP(pp_formline) |
448 | { | |
97aff369 | 449 | dVAR; dSP; dMARK; dORIGMARK; |
823a54a3 | 450 | register SV * const tmpForm = *++MARK; |
dea28490 | 451 | register U32 *fpc; |
a0d0e21e | 452 | register char *t; |
245d4a47 | 453 | const char *f; |
a0d0e21e | 454 | register I32 arg; |
c445ea15 AL |
455 | register SV *sv = NULL; |
456 | const char *item = NULL; | |
9c5ffd7c JH |
457 | I32 itemsize = 0; |
458 | I32 fieldsize = 0; | |
a0d0e21e | 459 | I32 lines = 0; |
c445ea15 AL |
460 | bool chopspace = (strchr(PL_chopset, ' ') != NULL); |
461 | const char *chophere = NULL; | |
462 | char *linemark = NULL; | |
65202027 | 463 | NV value; |
9c5ffd7c | 464 | bool gotsome = FALSE; |
a0d0e21e | 465 | STRLEN len; |
823a54a3 | 466 | const STRLEN fudge = SvPOK(tmpForm) |
24c89738 | 467 | ? (SvCUR(tmpForm) * (IN_BYTES ? 1 : 3) + 1) : 0; |
1bd51a4c IH |
468 | bool item_is_utf8 = FALSE; |
469 | bool targ_is_utf8 = FALSE; | |
c445ea15 | 470 | SV * nsv = NULL; |
cbbf8932 | 471 | OP * parseres = NULL; |
bfed75c6 | 472 | const char *fmt; |
a0d0e21e | 473 | |
76e3520e | 474 | if (!SvMAGICAL(tmpForm) || !SvCOMPILED(tmpForm)) { |
445b3f51 GS |
475 | if (SvREADONLY(tmpForm)) { |
476 | SvREADONLY_off(tmpForm); | |
a1b95068 | 477 | parseres = doparseform(tmpForm); |
445b3f51 GS |
478 | SvREADONLY_on(tmpForm); |
479 | } | |
480 | else | |
a1b95068 WL |
481 | parseres = doparseform(tmpForm); |
482 | if (parseres) | |
483 | return parseres; | |
a0d0e21e | 484 | } |
3280af22 | 485 | SvPV_force(PL_formtarget, len); |
1bd51a4c IH |
486 | if (DO_UTF8(PL_formtarget)) |
487 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 488 | t = SvGROW(PL_formtarget, len + fudge + 1); /* XXX SvCUR bad */ |
a0d0e21e | 489 | t += len; |
245d4a47 | 490 | f = SvPV_const(tmpForm, len); |
a0d0e21e | 491 | /* need to jump to the next word */ |
245d4a47 | 492 | fpc = (U32*)(f + len + WORD_ALIGN - SvCUR(tmpForm) % WORD_ALIGN); |
a0d0e21e LW |
493 | |
494 | for (;;) { | |
495 | DEBUG_f( { | |
bfed75c6 | 496 | const char *name = "???"; |
a0d0e21e LW |
497 | arg = -1; |
498 | switch (*fpc) { | |
499 | case FF_LITERAL: arg = fpc[1]; name = "LITERAL"; break; | |
500 | case FF_BLANK: arg = fpc[1]; name = "BLANK"; break; | |
501 | case FF_SKIP: arg = fpc[1]; name = "SKIP"; break; | |
502 | case FF_FETCH: arg = fpc[1]; name = "FETCH"; break; | |
503 | case FF_DECIMAL: arg = fpc[1]; name = "DECIMAL"; break; | |
504 | ||
505 | case FF_CHECKNL: name = "CHECKNL"; break; | |
506 | case FF_CHECKCHOP: name = "CHECKCHOP"; break; | |
507 | case FF_SPACE: name = "SPACE"; break; | |
508 | case FF_HALFSPACE: name = "HALFSPACE"; break; | |
509 | case FF_ITEM: name = "ITEM"; break; | |
510 | case FF_CHOP: name = "CHOP"; break; | |
511 | case FF_LINEGLOB: name = "LINEGLOB"; break; | |
512 | case FF_NEWLINE: name = "NEWLINE"; break; | |
513 | case FF_MORE: name = "MORE"; break; | |
514 | case FF_LINEMARK: name = "LINEMARK"; break; | |
515 | case FF_END: name = "END"; break; | |
bfed75c6 | 516 | case FF_0DECIMAL: name = "0DECIMAL"; break; |
a1b95068 | 517 | case FF_LINESNGL: name = "LINESNGL"; break; |
a0d0e21e LW |
518 | } |
519 | if (arg >= 0) | |
bf49b057 | 520 | PerlIO_printf(Perl_debug_log, "%-16s%ld\n", name, (long) arg); |
a0d0e21e | 521 | else |
bf49b057 | 522 | PerlIO_printf(Perl_debug_log, "%-16s\n", name); |
5f80b19c | 523 | } ); |
a0d0e21e LW |
524 | switch (*fpc++) { |
525 | case FF_LINEMARK: | |
526 | linemark = t; | |
a0d0e21e LW |
527 | lines++; |
528 | gotsome = FALSE; | |
529 | break; | |
530 | ||
531 | case FF_LITERAL: | |
532 | arg = *fpc++; | |
1bd51a4c | 533 | if (targ_is_utf8 && !SvUTF8(tmpForm)) { |
b15aece3 | 534 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
78da4d13 JH |
535 | *t = '\0'; |
536 | sv_catpvn_utf8_upgrade(PL_formtarget, f, arg, nsv); | |
537 | t = SvEND(PL_formtarget); | |
f3f2f1a3 | 538 | f += arg; |
1bd51a4c IH |
539 | break; |
540 | } | |
541 | if (!targ_is_utf8 && DO_UTF8(tmpForm)) { | |
b15aece3 | 542 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c | 543 | *t = '\0'; |
7bf79863 | 544 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, fudge + 1); |
1bd51a4c IH |
545 | t = SvEND(PL_formtarget); |
546 | targ_is_utf8 = TRUE; | |
547 | } | |
a0d0e21e LW |
548 | while (arg--) |
549 | *t++ = *f++; | |
550 | break; | |
551 | ||
552 | case FF_SKIP: | |
553 | f += *fpc++; | |
554 | break; | |
555 | ||
556 | case FF_FETCH: | |
557 | arg = *fpc++; | |
558 | f += arg; | |
559 | fieldsize = arg; | |
560 | ||
561 | if (MARK < SP) | |
562 | sv = *++MARK; | |
563 | else { | |
3280af22 | 564 | sv = &PL_sv_no; |
a2a5de95 | 565 | Perl_ck_warner(aTHX_ packWARN(WARN_SYNTAX), "Not enough format arguments"); |
a0d0e21e LW |
566 | } |
567 | break; | |
568 | ||
569 | case FF_CHECKNL: | |
5a34cab7 NC |
570 | { |
571 | const char *send; | |
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 | itemsize = fieldsize; | |
580 | itembytes = itemsize; | |
581 | sv_pos_u2b(sv, &itembytes, 0); | |
582 | } | |
583 | else | |
584 | itembytes = len; | |
585 | send = chophere = s + itembytes; | |
586 | while (s < send) { | |
587 | if (*s & ~31) | |
588 | gotsome = TRUE; | |
589 | else if (*s == '\n') | |
590 | break; | |
591 | s++; | |
592 | } | |
593 | item_is_utf8 = TRUE; | |
594 | itemsize = s - item; | |
595 | sv_pos_b2u(sv, &itemsize); | |
596 | break; | |
a0ed51b3 | 597 | } |
a0ed51b3 | 598 | } |
5a34cab7 NC |
599 | item_is_utf8 = FALSE; |
600 | if (itemsize > fieldsize) | |
601 | itemsize = fieldsize; | |
602 | send = chophere = s + itemsize; | |
603 | while (s < send) { | |
604 | if (*s & ~31) | |
605 | gotsome = TRUE; | |
606 | else if (*s == '\n') | |
607 | break; | |
608 | s++; | |
609 | } | |
610 | itemsize = s - item; | |
611 | break; | |
a0ed51b3 | 612 | } |
a0d0e21e LW |
613 | |
614 | case FF_CHECKCHOP: | |
5a34cab7 NC |
615 | { |
616 | const char *s = item = SvPV_const(sv, len); | |
617 | itemsize = len; | |
618 | if (DO_UTF8(sv)) { | |
619 | itemsize = sv_len_utf8(sv); | |
620 | if (itemsize != (I32)len) { | |
621 | I32 itembytes; | |
622 | if (itemsize <= fieldsize) { | |
623 | const char *send = chophere = s + itemsize; | |
624 | while (s < send) { | |
625 | if (*s == '\r') { | |
626 | itemsize = s - item; | |
a0ed51b3 | 627 | chophere = s; |
a0ed51b3 | 628 | break; |
5a34cab7 NC |
629 | } |
630 | if (*s++ & ~31) | |
a0ed51b3 | 631 | gotsome = TRUE; |
a0ed51b3 | 632 | } |
a0ed51b3 | 633 | } |
5a34cab7 NC |
634 | else { |
635 | const char *send; | |
636 | itemsize = fieldsize; | |
637 | itembytes = itemsize; | |
638 | sv_pos_u2b(sv, &itembytes, 0); | |
639 | send = chophere = s + itembytes; | |
640 | while (s < send || (s == send && isSPACE(*s))) { | |
641 | if (isSPACE(*s)) { | |
642 | if (chopspace) | |
643 | chophere = s; | |
644 | if (*s == '\r') | |
645 | break; | |
646 | } | |
647 | else { | |
648 | if (*s & ~31) | |
649 | gotsome = TRUE; | |
650 | if (strchr(PL_chopset, *s)) | |
651 | chophere = s + 1; | |
652 | } | |
653 | s++; | |
654 | } | |
655 | itemsize = chophere - item; | |
656 | sv_pos_b2u(sv, &itemsize); | |
657 | } | |
658 | item_is_utf8 = TRUE; | |
a0d0e21e LW |
659 | break; |
660 | } | |
a0d0e21e | 661 | } |
5a34cab7 NC |
662 | item_is_utf8 = FALSE; |
663 | if (itemsize <= fieldsize) { | |
664 | const char *const send = chophere = s + itemsize; | |
665 | while (s < send) { | |
666 | if (*s == '\r') { | |
667 | itemsize = s - item; | |
a0d0e21e | 668 | chophere = s; |
a0d0e21e | 669 | break; |
5a34cab7 NC |
670 | } |
671 | if (*s++ & ~31) | |
a0d0e21e | 672 | gotsome = TRUE; |
a0d0e21e | 673 | } |
a0d0e21e | 674 | } |
5a34cab7 NC |
675 | else { |
676 | const char *send; | |
677 | itemsize = fieldsize; | |
678 | send = chophere = s + itemsize; | |
679 | while (s < send || (s == send && isSPACE(*s))) { | |
680 | if (isSPACE(*s)) { | |
681 | if (chopspace) | |
682 | chophere = s; | |
683 | if (*s == '\r') | |
684 | break; | |
685 | } | |
686 | else { | |
687 | if (*s & ~31) | |
688 | gotsome = TRUE; | |
689 | if (strchr(PL_chopset, *s)) | |
690 | chophere = s + 1; | |
691 | } | |
692 | s++; | |
693 | } | |
694 | itemsize = chophere - item; | |
695 | } | |
696 | break; | |
a0d0e21e | 697 | } |
a0d0e21e LW |
698 | |
699 | case FF_SPACE: | |
700 | arg = fieldsize - itemsize; | |
701 | if (arg) { | |
702 | fieldsize -= arg; | |
703 | while (arg-- > 0) | |
704 | *t++ = ' '; | |
705 | } | |
706 | break; | |
707 | ||
708 | case FF_HALFSPACE: | |
709 | arg = fieldsize - itemsize; | |
710 | if (arg) { | |
711 | arg /= 2; | |
712 | fieldsize -= arg; | |
713 | while (arg-- > 0) | |
714 | *t++ = ' '; | |
715 | } | |
716 | break; | |
717 | ||
718 | case FF_ITEM: | |
5a34cab7 NC |
719 | { |
720 | const char *s = item; | |
721 | arg = itemsize; | |
722 | if (item_is_utf8) { | |
723 | if (!targ_is_utf8) { | |
724 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
725 | *t = '\0'; | |
7bf79863 KW |
726 | sv_utf8_upgrade_flags_grow(PL_formtarget, SV_GMAGIC, |
727 | fudge + 1); | |
5a34cab7 NC |
728 | t = SvEND(PL_formtarget); |
729 | targ_is_utf8 = TRUE; | |
a0ed51b3 | 730 | } |
5a34cab7 NC |
731 | while (arg--) { |
732 | if (UTF8_IS_CONTINUED(*s)) { | |
733 | STRLEN skip = UTF8SKIP(s); | |
734 | switch (skip) { | |
735 | default: | |
736 | Move(s,t,skip,char); | |
737 | s += skip; | |
738 | t += skip; | |
739 | break; | |
740 | case 7: *t++ = *s++; | |
741 | case 6: *t++ = *s++; | |
742 | case 5: *t++ = *s++; | |
743 | case 4: *t++ = *s++; | |
744 | case 3: *t++ = *s++; | |
745 | case 2: *t++ = *s++; | |
746 | case 1: *t++ = *s++; | |
747 | } | |
748 | } | |
749 | else { | |
750 | if ( !((*t++ = *s++) & ~31) ) | |
751 | t[-1] = ' '; | |
752 | } | |
a0ed51b3 | 753 | } |
5a34cab7 | 754 | break; |
a0ed51b3 | 755 | } |
5a34cab7 NC |
756 | if (targ_is_utf8 && !item_is_utf8) { |
757 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); | |
758 | *t = '\0'; | |
759 | sv_catpvn_utf8_upgrade(PL_formtarget, s, arg, nsv); | |
760 | for (; t < SvEND(PL_formtarget); t++) { | |
78da4d13 | 761 | #ifdef EBCDIC |
901017d6 | 762 | const int ch = *t; |
5a34cab7 | 763 | if (iscntrl(ch)) |
78da4d13 | 764 | #else |
5a34cab7 | 765 | if (!(*t & ~31)) |
78da4d13 | 766 | #endif |
5a34cab7 NC |
767 | *t = ' '; |
768 | } | |
769 | break; | |
78da4d13 | 770 | } |
5a34cab7 | 771 | while (arg--) { |
9d116dd7 | 772 | #ifdef EBCDIC |
901017d6 | 773 | const int ch = *t++ = *s++; |
5a34cab7 | 774 | if (iscntrl(ch)) |
a0d0e21e | 775 | #else |
5a34cab7 | 776 | if ( !((*t++ = *s++) & ~31) ) |
a0d0e21e | 777 | #endif |
5a34cab7 NC |
778 | t[-1] = ' '; |
779 | } | |
780 | break; | |
a0d0e21e | 781 | } |
a0d0e21e LW |
782 | |
783 | case FF_CHOP: | |
5a34cab7 NC |
784 | { |
785 | const char *s = chophere; | |
786 | if (chopspace) { | |
af68e756 | 787 | while (isSPACE(*s)) |
5a34cab7 NC |
788 | s++; |
789 | } | |
790 | sv_chop(sv,s); | |
791 | SvSETMAGIC(sv); | |
792 | break; | |
a0d0e21e | 793 | } |
a0d0e21e | 794 | |
a1b95068 WL |
795 | case FF_LINESNGL: |
796 | chopspace = 0; | |
a0d0e21e | 797 | case FF_LINEGLOB: |
5a34cab7 | 798 | { |
e32383e2 | 799 | const bool oneline = fpc[-1] == FF_LINESNGL; |
5a34cab7 | 800 | const char *s = item = SvPV_const(sv, len); |
f3f2f1a3 | 801 | item_is_utf8 = DO_UTF8(sv); |
5a34cab7 | 802 | itemsize = len; |
5a34cab7 | 803 | if (itemsize) { |
e8e72d41 | 804 | STRLEN to_copy = itemsize; |
5a34cab7 | 805 | const char *const send = s + len; |
35c6393c | 806 | const U8 *source = (const U8 *) s; |
e8e72d41 NC |
807 | U8 *tmp = NULL; |
808 | ||
5a34cab7 NC |
809 | gotsome = TRUE; |
810 | chophere = s + itemsize; | |
811 | while (s < send) { | |
812 | if (*s++ == '\n') { | |
813 | if (oneline) { | |
e8e72d41 | 814 | to_copy = s - SvPVX_const(sv) - 1; |
5a34cab7 NC |
815 | chophere = s; |
816 | break; | |
817 | } else { | |
818 | if (s == send) { | |
819 | itemsize--; | |
e8e72d41 | 820 | to_copy--; |
5a34cab7 NC |
821 | } else |
822 | lines++; | |
823 | } | |
1bd51a4c | 824 | } |
a0d0e21e | 825 | } |
e8e72d41 | 826 | if (targ_is_utf8 && !item_is_utf8) { |
35c6393c | 827 | source = tmp = bytes_to_utf8(source, &to_copy); |
e8e72d41 NC |
828 | SvCUR_set(PL_formtarget, |
829 | t - SvPVX_const(PL_formtarget)); | |
830 | } else { | |
831 | if (item_is_utf8 && !targ_is_utf8) { | |
832 | /* Upgrade targ to UTF8, and then we reduce it to | |
833 | a problem we have a simple solution for. */ | |
834 | SvCUR_set(PL_formtarget, | |
835 | t - SvPVX_const(PL_formtarget)); | |
836 | targ_is_utf8 = TRUE; | |
837 | /* Don't need get magic. */ | |
7bf79863 | 838 | sv_utf8_upgrade_nomg(PL_formtarget); |
e8e72d41 NC |
839 | } else { |
840 | SvCUR_set(PL_formtarget, | |
841 | t - SvPVX_const(PL_formtarget)); | |
842 | } | |
e8e72d41 NC |
843 | |
844 | /* Easy. They agree. */ | |
845 | assert (item_is_utf8 == targ_is_utf8); | |
846 | } | |
847 | SvGROW(PL_formtarget, | |
848 | SvCUR(PL_formtarget) + to_copy + fudge + 1); | |
5a34cab7 | 849 | t = SvPVX(PL_formtarget) + SvCUR(PL_formtarget); |
e8e72d41 NC |
850 | |
851 | Copy(source, t, to_copy, char); | |
852 | t += to_copy; | |
853 | SvCUR_set(PL_formtarget, SvCUR(PL_formtarget) + to_copy); | |
f3f2f1a3 | 854 | if (item_is_utf8) { |
e8e72d41 NC |
855 | if (SvGMAGICAL(sv)) { |
856 | /* Mustn't call sv_pos_b2u() as it does a second | |
857 | mg_get(). Is this a bug? Do we need a _flags() | |
858 | variant? */ | |
859 | itemsize = utf8_length(source, source + itemsize); | |
860 | } else { | |
861 | sv_pos_b2u(sv, &itemsize); | |
862 | } | |
863 | assert(!tmp); | |
864 | } else if (tmp) { | |
865 | Safefree(tmp); | |
f3f2f1a3 | 866 | } |
a0d0e21e | 867 | } |
5a34cab7 | 868 | break; |
a0d0e21e | 869 | } |
a0d0e21e | 870 | |
a1b95068 WL |
871 | case FF_0DECIMAL: |
872 | arg = *fpc++; | |
873 | #if defined(USE_LONG_DOUBLE) | |
10edeb5d JH |
874 | fmt = (const char *) |
875 | ((arg & 256) ? | |
876 | "%#0*.*" PERL_PRIfldbl : "%0*.*" PERL_PRIfldbl); | |
a1b95068 | 877 | #else |
10edeb5d JH |
878 | fmt = (const char *) |
879 | ((arg & 256) ? | |
880 | "%#0*.*f" : "%0*.*f"); | |
a1b95068 WL |
881 | #endif |
882 | goto ff_dec; | |
a0d0e21e | 883 | case FF_DECIMAL: |
a0d0e21e | 884 | arg = *fpc++; |
65202027 | 885 | #if defined(USE_LONG_DOUBLE) |
10edeb5d JH |
886 | fmt = (const char *) |
887 | ((arg & 256) ? "%#*.*" PERL_PRIfldbl : "%*.*" PERL_PRIfldbl); | |
65202027 | 888 | #else |
10edeb5d JH |
889 | fmt = (const char *) |
890 | ((arg & 256) ? "%#*.*f" : "%*.*f"); | |
65202027 | 891 | #endif |
a1b95068 | 892 | ff_dec: |
784707d5 JP |
893 | /* If the field is marked with ^ and the value is undefined, |
894 | blank it out. */ | |
784707d5 JP |
895 | if ((arg & 512) && !SvOK(sv)) { |
896 | arg = fieldsize; | |
897 | while (arg--) | |
898 | *t++ = ' '; | |
899 | break; | |
900 | } | |
901 | gotsome = TRUE; | |
902 | value = SvNV(sv); | |
a1b95068 | 903 | /* overflow evidence */ |
bfed75c6 | 904 | if (num_overflow(value, fieldsize, arg)) { |
a1b95068 WL |
905 | arg = fieldsize; |
906 | while (arg--) | |
907 | *t++ = '#'; | |
908 | break; | |
909 | } | |
784707d5 JP |
910 | /* Formats aren't yet marked for locales, so assume "yes". */ |
911 | { | |
912 | STORE_NUMERIC_STANDARD_SET_LOCAL(); | |
d9fad198 | 913 | my_snprintf(t, SvLEN(PL_formtarget) - (t - SvPVX(PL_formtarget)), fmt, (int) fieldsize, (int) arg & 255, value); |
784707d5 JP |
914 | RESTORE_NUMERIC_STANDARD(); |
915 | } | |
916 | t += fieldsize; | |
917 | break; | |
a1b95068 | 918 | |
a0d0e21e LW |
919 | case FF_NEWLINE: |
920 | f++; | |
921 | while (t-- > linemark && *t == ' ') ; | |
922 | t++; | |
923 | *t++ = '\n'; | |
924 | break; | |
925 | ||
926 | case FF_BLANK: | |
927 | arg = *fpc++; | |
928 | if (gotsome) { | |
929 | if (arg) { /* repeat until fields exhausted? */ | |
930 | *t = '\0'; | |
b15aece3 | 931 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
3280af22 | 932 | lines += FmLINES(PL_formtarget); |
1bd51a4c IH |
933 | if (targ_is_utf8) |
934 | SvUTF8_on(PL_formtarget); | |
3280af22 | 935 | FmLINES(PL_formtarget) = lines; |
a0d0e21e LW |
936 | SP = ORIGMARK; |
937 | RETURNOP(cLISTOP->op_first); | |
938 | } | |
939 | } | |
940 | else { | |
941 | t = linemark; | |
942 | lines--; | |
943 | } | |
944 | break; | |
945 | ||
946 | case FF_MORE: | |
5a34cab7 NC |
947 | { |
948 | const char *s = chophere; | |
949 | const char *send = item + len; | |
950 | if (chopspace) { | |
af68e756 | 951 | while (isSPACE(*s) && (s < send)) |
5a34cab7 | 952 | s++; |
a0d0e21e | 953 | } |
5a34cab7 NC |
954 | if (s < send) { |
955 | char *s1; | |
956 | arg = fieldsize - itemsize; | |
957 | if (arg) { | |
958 | fieldsize -= arg; | |
959 | while (arg-- > 0) | |
960 | *t++ = ' '; | |
961 | } | |
962 | s1 = t - 3; | |
963 | if (strnEQ(s1," ",3)) { | |
964 | while (s1 > SvPVX_const(PL_formtarget) && isSPACE(s1[-1])) | |
965 | s1--; | |
966 | } | |
967 | *s1++ = '.'; | |
968 | *s1++ = '.'; | |
969 | *s1++ = '.'; | |
a0d0e21e | 970 | } |
5a34cab7 | 971 | break; |
a0d0e21e | 972 | } |
a0d0e21e LW |
973 | case FF_END: |
974 | *t = '\0'; | |
b15aece3 | 975 | SvCUR_set(PL_formtarget, t - SvPVX_const(PL_formtarget)); |
1bd51a4c IH |
976 | if (targ_is_utf8) |
977 | SvUTF8_on(PL_formtarget); | |
3280af22 | 978 | FmLINES(PL_formtarget) += lines; |
a0d0e21e LW |
979 | SP = ORIGMARK; |
980 | RETPUSHYES; | |
981 | } | |
982 | } | |
983 | } | |
984 | ||
985 | PP(pp_grepstart) | |
986 | { | |
27da23d5 | 987 | dVAR; dSP; |
a0d0e21e LW |
988 | SV *src; |
989 | ||
3280af22 | 990 | if (PL_stack_base + *PL_markstack_ptr == SP) { |
a0d0e21e | 991 | (void)POPMARK; |
54310121 | 992 | if (GIMME_V == G_SCALAR) |
6e449a3a | 993 | mXPUSHi(0); |
533c011a | 994 | RETURNOP(PL_op->op_next->op_next); |
a0d0e21e | 995 | } |
3280af22 | 996 | PL_stack_sp = PL_stack_base + *PL_markstack_ptr + 1; |
cea2e8a9 GS |
997 | pp_pushmark(); /* push dst */ |
998 | pp_pushmark(); /* push src */ | |
a0d0e21e LW |
999 | ENTER; /* enter outer scope */ |
1000 | ||
1001 | SAVETMPS; | |
59f00321 RGS |
1002 | if (PL_op->op_private & OPpGREP_LEX) |
1003 | SAVESPTR(PAD_SVl(PL_op->op_targ)); | |
1004 | else | |
1005 | SAVE_DEFSV; | |
a0d0e21e | 1006 | ENTER; /* enter inner scope */ |
7766f137 | 1007 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1008 | |
3280af22 | 1009 | src = PL_stack_base[*PL_markstack_ptr]; |
a0d0e21e | 1010 | SvTEMP_off(src); |
59f00321 RGS |
1011 | if (PL_op->op_private & OPpGREP_LEX) |
1012 | PAD_SVl(PL_op->op_targ) = src; | |
1013 | else | |
414bf5ae | 1014 | DEFSV_set(src); |
a0d0e21e LW |
1015 | |
1016 | PUTBACK; | |
533c011a | 1017 | if (PL_op->op_type == OP_MAPSTART) |
cea2e8a9 | 1018 | pp_pushmark(); /* push top */ |
533c011a | 1019 | return ((LOGOP*)PL_op->op_next)->op_other; |
a0d0e21e LW |
1020 | } |
1021 | ||
a0d0e21e LW |
1022 | PP(pp_mapwhile) |
1023 | { | |
27da23d5 | 1024 | dVAR; dSP; |
f54cb97a | 1025 | const I32 gimme = GIMME_V; |
544f3153 | 1026 | I32 items = (SP - PL_stack_base) - *PL_markstack_ptr; /* how many new items */ |
a0d0e21e LW |
1027 | I32 count; |
1028 | I32 shift; | |
1029 | SV** src; | |
ac27b0f5 | 1030 | SV** dst; |
a0d0e21e | 1031 | |
544f3153 | 1032 | /* first, move source pointer to the next item in the source list */ |
3280af22 | 1033 | ++PL_markstack_ptr[-1]; |
544f3153 GS |
1034 | |
1035 | /* if there are new items, push them into the destination list */ | |
4c90a460 | 1036 | if (items && gimme != G_VOID) { |
544f3153 GS |
1037 | /* might need to make room back there first */ |
1038 | if (items > PL_markstack_ptr[-1] - PL_markstack_ptr[-2]) { | |
1039 | /* XXX this implementation is very pessimal because the stack | |
1040 | * is repeatedly extended for every set of items. Is possible | |
1041 | * to do this without any stack extension or copying at all | |
1042 | * by maintaining a separate list over which the map iterates | |
18ef8bea | 1043 | * (like foreach does). --gsar */ |
544f3153 GS |
1044 | |
1045 | /* everything in the stack after the destination list moves | |
1046 | * towards the end the stack by the amount of room needed */ | |
1047 | shift = items - (PL_markstack_ptr[-1] - PL_markstack_ptr[-2]); | |
1048 | ||
1049 | /* items to shift up (accounting for the moved source pointer) */ | |
1050 | count = (SP - PL_stack_base) - (PL_markstack_ptr[-1] - 1); | |
18ef8bea BT |
1051 | |
1052 | /* This optimization is by Ben Tilly and it does | |
1053 | * things differently from what Sarathy (gsar) | |
1054 | * is describing. The downside of this optimization is | |
1055 | * that leaves "holes" (uninitialized and hopefully unused areas) | |
1056 | * to the Perl stack, but on the other hand this | |
1057 | * shouldn't be a problem. If Sarathy's idea gets | |
1058 | * implemented, this optimization should become | |
1059 | * irrelevant. --jhi */ | |
1060 | if (shift < count) | |
1061 | shift = count; /* Avoid shifting too often --Ben Tilly */ | |
bfed75c6 | 1062 | |
924508f0 GS |
1063 | EXTEND(SP,shift); |
1064 | src = SP; | |
1065 | dst = (SP += shift); | |
3280af22 NIS |
1066 | PL_markstack_ptr[-1] += shift; |
1067 | *PL_markstack_ptr += shift; | |
544f3153 | 1068 | while (count--) |
a0d0e21e LW |
1069 | *dst-- = *src--; |
1070 | } | |
544f3153 | 1071 | /* copy the new items down to the destination list */ |
ac27b0f5 | 1072 | dst = PL_stack_base + (PL_markstack_ptr[-2] += items) - 1; |
22023b26 TP |
1073 | if (gimme == G_ARRAY) { |
1074 | while (items-- > 0) | |
1075 | *dst-- = SvTEMP(TOPs) ? POPs : sv_mortalcopy(POPs); | |
1076 | } | |
bfed75c6 | 1077 | else { |
22023b26 TP |
1078 | /* scalar context: we don't care about which values map returns |
1079 | * (we use undef here). And so we certainly don't want to do mortal | |
1080 | * copies of meaningless values. */ | |
1081 | while (items-- > 0) { | |
b988aa42 | 1082 | (void)POPs; |
22023b26 TP |
1083 | *dst-- = &PL_sv_undef; |
1084 | } | |
1085 | } | |
a0d0e21e LW |
1086 | } |
1087 | LEAVE; /* exit inner scope */ | |
1088 | ||
1089 | /* All done yet? */ | |
3280af22 | 1090 | if (PL_markstack_ptr[-1] > *PL_markstack_ptr) { |
a0d0e21e LW |
1091 | |
1092 | (void)POPMARK; /* pop top */ | |
1093 | LEAVE; /* exit outer scope */ | |
1094 | (void)POPMARK; /* pop src */ | |
3280af22 | 1095 | items = --*PL_markstack_ptr - PL_markstack_ptr[-1]; |
a0d0e21e | 1096 | (void)POPMARK; /* pop dst */ |
3280af22 | 1097 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
54310121 | 1098 | if (gimme == G_SCALAR) { |
7cc47870 RGS |
1099 | if (PL_op->op_private & OPpGREP_LEX) { |
1100 | SV* sv = sv_newmortal(); | |
1101 | sv_setiv(sv, items); | |
1102 | PUSHs(sv); | |
1103 | } | |
1104 | else { | |
1105 | dTARGET; | |
1106 | XPUSHi(items); | |
1107 | } | |
a0d0e21e | 1108 | } |
54310121 | 1109 | else if (gimme == G_ARRAY) |
1110 | SP += items; | |
a0d0e21e LW |
1111 | RETURN; |
1112 | } | |
1113 | else { | |
1114 | SV *src; | |
1115 | ||
1116 | ENTER; /* enter inner scope */ | |
7766f137 | 1117 | SAVEVPTR(PL_curpm); |
a0d0e21e | 1118 | |
544f3153 | 1119 | /* set $_ to the new source item */ |
3280af22 | 1120 | src = PL_stack_base[PL_markstack_ptr[-1]]; |
a0d0e21e | 1121 | SvTEMP_off(src); |
59f00321 RGS |
1122 | if (PL_op->op_private & OPpGREP_LEX) |
1123 | PAD_SVl(PL_op->op_targ) = src; | |
1124 | else | |
414bf5ae | 1125 | DEFSV_set(src); |
a0d0e21e LW |
1126 | |
1127 | RETURNOP(cLOGOP->op_other); | |
1128 | } | |
1129 | } | |
1130 | ||
a0d0e21e LW |
1131 | /* Range stuff. */ |
1132 | ||
1133 | PP(pp_range) | |
1134 | { | |
97aff369 | 1135 | dVAR; |
a0d0e21e | 1136 | if (GIMME == G_ARRAY) |
1a67a97c | 1137 | return NORMAL; |
538573f7 | 1138 | if (SvTRUEx(PAD_SV(PL_op->op_targ))) |
1a67a97c | 1139 | return cLOGOP->op_other; |
538573f7 | 1140 | else |
1a67a97c | 1141 | return NORMAL; |
a0d0e21e LW |
1142 | } |
1143 | ||
1144 | PP(pp_flip) | |
1145 | { | |
97aff369 | 1146 | dVAR; |
39644a26 | 1147 | dSP; |
a0d0e21e LW |
1148 | |
1149 | if (GIMME == G_ARRAY) { | |
1a67a97c | 1150 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1151 | } |
1152 | else { | |
1153 | dTOPss; | |
44f8325f | 1154 | SV * const targ = PAD_SV(PL_op->op_targ); |
bfed75c6 | 1155 | int flip = 0; |
790090df | 1156 | |
bfed75c6 | 1157 | if (PL_op->op_private & OPpFLIP_LINENUM) { |
4e3399f9 YST |
1158 | if (GvIO(PL_last_in_gv)) { |
1159 | flip = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1160 | } | |
1161 | else { | |
fafc274c | 1162 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
44f8325f AL |
1163 | if (gv && GvSV(gv)) |
1164 | flip = SvIV(sv) == SvIV(GvSV(gv)); | |
4e3399f9 | 1165 | } |
bfed75c6 AL |
1166 | } else { |
1167 | flip = SvTRUE(sv); | |
1168 | } | |
1169 | if (flip) { | |
a0d0e21e | 1170 | sv_setiv(PAD_SV(cUNOP->op_first->op_targ), 1); |
533c011a | 1171 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 1172 | sv_setiv(targ, 1); |
3e3baf6d | 1173 | SETs(targ); |
a0d0e21e LW |
1174 | RETURN; |
1175 | } | |
1176 | else { | |
1177 | sv_setiv(targ, 0); | |
924508f0 | 1178 | SP--; |
1a67a97c | 1179 | RETURNOP(((LOGOP*)cUNOP->op_first)->op_other); |
a0d0e21e LW |
1180 | } |
1181 | } | |
76f68e9b | 1182 | sv_setpvs(TARG, ""); |
a0d0e21e LW |
1183 | SETs(targ); |
1184 | RETURN; | |
1185 | } | |
1186 | } | |
1187 | ||
8e9bbdb9 RGS |
1188 | /* This code tries to decide if "$left .. $right" should use the |
1189 | magical string increment, or if the range is numeric (we make | |
1190 | an exception for .."0" [#18165]). AMS 20021031. */ | |
1191 | ||
1192 | #define RANGE_IS_NUMERIC(left,right) ( \ | |
b0e74086 RGS |
1193 | SvNIOKp(left) || (SvOK(left) && !SvPOKp(left)) || \ |
1194 | SvNIOKp(right) || (SvOK(right) && !SvPOKp(right)) || \ | |
e0ab1c0e | 1195 | (((!SvOK(left) && SvOK(right)) || ((!SvOK(left) || \ |
b15aece3 | 1196 | looks_like_number(left)) && SvPOKp(left) && *SvPVX_const(left) != '0')) \ |
e0ab1c0e | 1197 | && (!SvOK(right) || looks_like_number(right)))) |
8e9bbdb9 | 1198 | |
a0d0e21e LW |
1199 | PP(pp_flop) |
1200 | { | |
97aff369 | 1201 | dVAR; dSP; |
a0d0e21e LW |
1202 | |
1203 | if (GIMME == G_ARRAY) { | |
1204 | dPOPPOPssrl; | |
86cb7173 | 1205 | |
5b295bef RD |
1206 | SvGETMAGIC(left); |
1207 | SvGETMAGIC(right); | |
a0d0e21e | 1208 | |
8e9bbdb9 | 1209 | if (RANGE_IS_NUMERIC(left,right)) { |
901017d6 AL |
1210 | register IV i, j; |
1211 | IV max; | |
4fe3f0fa MHM |
1212 | if ((SvOK(left) && SvNV(left) < IV_MIN) || |
1213 | (SvOK(right) && SvNV(right) > IV_MAX)) | |
d470f89e | 1214 | DIE(aTHX_ "Range iterator outside integer range"); |
a0d0e21e LW |
1215 | i = SvIV(left); |
1216 | max = SvIV(right); | |
bbce6d69 | 1217 | if (max >= i) { |
c1ab3db2 AK |
1218 | j = max - i + 1; |
1219 | EXTEND_MORTAL(j); | |
1220 | EXTEND(SP, j); | |
bbce6d69 | 1221 | } |
c1ab3db2 AK |
1222 | else |
1223 | j = 0; | |
1224 | while (j--) { | |
901017d6 | 1225 | SV * const sv = sv_2mortal(newSViv(i++)); |
a0d0e21e LW |
1226 | PUSHs(sv); |
1227 | } | |
1228 | } | |
1229 | else { | |
44f8325f | 1230 | SV * const final = sv_mortalcopy(right); |
13c5b33c | 1231 | STRLEN len; |
823a54a3 | 1232 | const char * const tmps = SvPV_const(final, len); |
a0d0e21e | 1233 | |
901017d6 | 1234 | SV *sv = sv_mortalcopy(left); |
13c5b33c | 1235 | SvPV_force_nolen(sv); |
89ea2908 | 1236 | while (!SvNIOKp(sv) && SvCUR(sv) <= len) { |
a0d0e21e | 1237 | XPUSHs(sv); |
b15aece3 | 1238 | if (strEQ(SvPVX_const(sv),tmps)) |
89ea2908 | 1239 | break; |
a0d0e21e LW |
1240 | sv = sv_2mortal(newSVsv(sv)); |
1241 | sv_inc(sv); | |
1242 | } | |
a0d0e21e LW |
1243 | } |
1244 | } | |
1245 | else { | |
1246 | dTOPss; | |
901017d6 | 1247 | SV * const targ = PAD_SV(cUNOP->op_first->op_targ); |
4e3399f9 | 1248 | int flop = 0; |
a0d0e21e | 1249 | sv_inc(targ); |
4e3399f9 YST |
1250 | |
1251 | if (PL_op->op_private & OPpFLIP_LINENUM) { | |
1252 | if (GvIO(PL_last_in_gv)) { | |
1253 | flop = SvIV(sv) == (IV)IoLINES(GvIOp(PL_last_in_gv)); | |
1254 | } | |
1255 | else { | |
fafc274c | 1256 | GV * const gv = gv_fetchpvs(".", GV_ADD|GV_NOTQUAL, SVt_PV); |
4e3399f9 YST |
1257 | if (gv && GvSV(gv)) flop = SvIV(sv) == SvIV(GvSV(gv)); |
1258 | } | |
1259 | } | |
1260 | else { | |
1261 | flop = SvTRUE(sv); | |
1262 | } | |
1263 | ||
1264 | if (flop) { | |
a0d0e21e | 1265 | sv_setiv(PAD_SV(((UNOP*)cUNOP->op_first)->op_first->op_targ), 0); |
396482e1 | 1266 | sv_catpvs(targ, "E0"); |
a0d0e21e LW |
1267 | } |
1268 | SETs(targ); | |
1269 | } | |
1270 | ||
1271 | RETURN; | |
1272 | } | |
1273 | ||
1274 | /* Control. */ | |
1275 | ||
27da23d5 | 1276 | static const char * const context_name[] = { |
515afda2 | 1277 | "pseudo-block", |
f31522f3 | 1278 | NULL, /* CXt_WHEN never actually needs "block" */ |
76753e7f | 1279 | NULL, /* CXt_BLOCK never actually needs "block" */ |
f31522f3 | 1280 | NULL, /* CXt_GIVEN never actually needs "block" */ |
76753e7f NC |
1281 | NULL, /* CXt_LOOP_FOR never actually needs "loop" */ |
1282 | NULL, /* CXt_LOOP_PLAIN never actually needs "loop" */ | |
1283 | NULL, /* CXt_LOOP_LAZYSV never actually needs "loop" */ | |
1284 | NULL, /* CXt_LOOP_LAZYIV never actually needs "loop" */ | |
515afda2 | 1285 | "subroutine", |
76753e7f | 1286 | "format", |
515afda2 | 1287 | "eval", |
515afda2 | 1288 | "substitution", |
515afda2 NC |
1289 | }; |
1290 | ||
76e3520e | 1291 | STATIC I32 |
06b5626a | 1292 | S_dopoptolabel(pTHX_ const char *label) |
a0d0e21e | 1293 | { |
97aff369 | 1294 | dVAR; |
a0d0e21e | 1295 | register I32 i; |
a0d0e21e | 1296 | |
7918f24d NC |
1297 | PERL_ARGS_ASSERT_DOPOPTOLABEL; |
1298 | ||
a0d0e21e | 1299 | for (i = cxstack_ix; i >= 0; i--) { |
901017d6 | 1300 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1301 | switch (CxTYPE(cx)) { |
a0d0e21e | 1302 | case CXt_SUBST: |
a0d0e21e | 1303 | case CXt_SUB: |
7766f137 | 1304 | case CXt_FORMAT: |
a0d0e21e | 1305 | case CXt_EVAL: |
0a753a76 | 1306 | case CXt_NULL: |
a2a5de95 NC |
1307 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1308 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1309 | if (CxTYPE(cx) == CXt_NULL) |
1310 | return -1; | |
1311 | break; | |
c6fdafd0 | 1312 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1313 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1314 | case CXt_LOOP_FOR: |
1315 | case CXt_LOOP_PLAIN: | |
a61a7064 | 1316 | if ( !CxLABEL(cx) || strNE(label, CxLABEL(cx)) ) { |
cea2e8a9 | 1317 | DEBUG_l(Perl_deb(aTHX_ "(Skipping label #%ld %s)\n", |
a61a7064 | 1318 | (long)i, CxLABEL(cx))); |
a0d0e21e LW |
1319 | continue; |
1320 | } | |
cea2e8a9 | 1321 | DEBUG_l( Perl_deb(aTHX_ "(Found label #%ld %s)\n", (long)i, label)); |
a0d0e21e LW |
1322 | return i; |
1323 | } | |
1324 | } | |
1325 | return i; | |
1326 | } | |
1327 | ||
0d863452 RH |
1328 | |
1329 | ||
e50aee73 | 1330 | I32 |
864dbfa3 | 1331 | Perl_dowantarray(pTHX) |
e50aee73 | 1332 | { |
97aff369 | 1333 | dVAR; |
f54cb97a | 1334 | const I32 gimme = block_gimme(); |
54310121 | 1335 | return (gimme == G_VOID) ? G_SCALAR : gimme; |
1336 | } | |
1337 | ||
1338 | I32 | |
864dbfa3 | 1339 | Perl_block_gimme(pTHX) |
54310121 | 1340 | { |
97aff369 | 1341 | dVAR; |
06b5626a | 1342 | const I32 cxix = dopoptosub(cxstack_ix); |
e50aee73 | 1343 | if (cxix < 0) |
46fc3d4c | 1344 | return G_VOID; |
e50aee73 | 1345 | |
54310121 | 1346 | switch (cxstack[cxix].blk_gimme) { |
d2719217 GS |
1347 | case G_VOID: |
1348 | return G_VOID; | |
54310121 | 1349 | case G_SCALAR: |
e50aee73 | 1350 | return G_SCALAR; |
54310121 | 1351 | case G_ARRAY: |
1352 | return G_ARRAY; | |
1353 | default: | |
cea2e8a9 | 1354 | Perl_croak(aTHX_ "panic: bad gimme: %d\n", cxstack[cxix].blk_gimme); |
d2719217 GS |
1355 | /* NOTREACHED */ |
1356 | return 0; | |
54310121 | 1357 | } |
e50aee73 AD |
1358 | } |
1359 | ||
78f9721b SM |
1360 | I32 |
1361 | Perl_is_lvalue_sub(pTHX) | |
1362 | { | |
97aff369 | 1363 | dVAR; |
06b5626a | 1364 | const I32 cxix = dopoptosub(cxstack_ix); |
78f9721b SM |
1365 | assert(cxix >= 0); /* We should only be called from inside subs */ |
1366 | ||
bafb2adc NC |
1367 | if (CxLVAL(cxstack + cxix) && CvLVALUE(cxstack[cxix].blk_sub.cv)) |
1368 | return CxLVAL(cxstack + cxix); | |
78f9721b SM |
1369 | else |
1370 | return 0; | |
1371 | } | |
1372 | ||
76e3520e | 1373 | STATIC I32 |
901017d6 | 1374 | S_dopoptosub_at(pTHX_ const PERL_CONTEXT *cxstk, I32 startingblock) |
2c375eb9 | 1375 | { |
97aff369 | 1376 | dVAR; |
a0d0e21e | 1377 | I32 i; |
7918f24d NC |
1378 | |
1379 | PERL_ARGS_ASSERT_DOPOPTOSUB_AT; | |
1380 | ||
a0d0e21e | 1381 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1382 | register const PERL_CONTEXT * const cx = &cxstk[i]; |
6b35e009 | 1383 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1384 | default: |
1385 | continue; | |
1386 | case CXt_EVAL: | |
1387 | case CXt_SUB: | |
7766f137 | 1388 | case CXt_FORMAT: |
cea2e8a9 | 1389 | DEBUG_l( Perl_deb(aTHX_ "(Found sub #%ld)\n", (long)i)); |
a0d0e21e LW |
1390 | return i; |
1391 | } | |
1392 | } | |
1393 | return i; | |
1394 | } | |
1395 | ||
76e3520e | 1396 | STATIC I32 |
cea2e8a9 | 1397 | S_dopoptoeval(pTHX_ I32 startingblock) |
a0d0e21e | 1398 | { |
97aff369 | 1399 | dVAR; |
a0d0e21e | 1400 | I32 i; |
a0d0e21e | 1401 | for (i = startingblock; i >= 0; i--) { |
06b5626a | 1402 | register const PERL_CONTEXT *cx = &cxstack[i]; |
6b35e009 | 1403 | switch (CxTYPE(cx)) { |
a0d0e21e LW |
1404 | default: |
1405 | continue; | |
1406 | case CXt_EVAL: | |
cea2e8a9 | 1407 | DEBUG_l( Perl_deb(aTHX_ "(Found eval #%ld)\n", (long)i)); |
a0d0e21e LW |
1408 | return i; |
1409 | } | |
1410 | } | |
1411 | return i; | |
1412 | } | |
1413 | ||
76e3520e | 1414 | STATIC I32 |
cea2e8a9 | 1415 | S_dopoptoloop(pTHX_ I32 startingblock) |
a0d0e21e | 1416 | { |
97aff369 | 1417 | dVAR; |
a0d0e21e | 1418 | I32 i; |
a0d0e21e | 1419 | for (i = startingblock; i >= 0; i--) { |
901017d6 | 1420 | register const PERL_CONTEXT * const cx = &cxstack[i]; |
6b35e009 | 1421 | switch (CxTYPE(cx)) { |
a0d0e21e | 1422 | case CXt_SUBST: |
a0d0e21e | 1423 | case CXt_SUB: |
7766f137 | 1424 | case CXt_FORMAT: |
a0d0e21e | 1425 | case CXt_EVAL: |
0a753a76 | 1426 | case CXt_NULL: |
a2a5de95 NC |
1427 | Perl_ck_warner(aTHX_ packWARN(WARN_EXITING), "Exiting %s via %s", |
1428 | context_name[CxTYPE(cx)], OP_NAME(PL_op)); | |
515afda2 NC |
1429 | if ((CxTYPE(cx)) == CXt_NULL) |
1430 | return -1; | |
1431 | break; | |
c6fdafd0 | 1432 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1433 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1434 | case CXt_LOOP_FOR: |
1435 | case CXt_LOOP_PLAIN: | |
cea2e8a9 | 1436 | DEBUG_l( Perl_deb(aTHX_ "(Found loop #%ld)\n", (long)i)); |
a0d0e21e LW |
1437 | return i; |
1438 | } | |
1439 | } | |
1440 | return i; | |
1441 | } | |
1442 | ||
0d863452 RH |
1443 | STATIC I32 |
1444 | S_dopoptogiven(pTHX_ I32 startingblock) | |
1445 | { | |
97aff369 | 1446 | dVAR; |
0d863452 RH |
1447 | I32 i; |
1448 | for (i = startingblock; i >= 0; i--) { | |
1449 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1450 | switch (CxTYPE(cx)) { | |
1451 | default: | |
1452 | continue; | |
1453 | case CXt_GIVEN: | |
1454 | DEBUG_l( Perl_deb(aTHX_ "(Found given #%ld)\n", (long)i)); | |
1455 | return i; | |
3b719c58 NC |
1456 | case CXt_LOOP_PLAIN: |
1457 | assert(!CxFOREACHDEF(cx)); | |
1458 | break; | |
c6fdafd0 | 1459 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1460 | case CXt_LOOP_LAZYSV: |
3b719c58 | 1461 | case CXt_LOOP_FOR: |
0d863452 RH |
1462 | if (CxFOREACHDEF(cx)) { |
1463 | DEBUG_l( Perl_deb(aTHX_ "(Found foreach #%ld)\n", (long)i)); | |
1464 | return i; | |
1465 | } | |
1466 | } | |
1467 | } | |
1468 | return i; | |
1469 | } | |
1470 | ||
1471 | STATIC I32 | |
1472 | S_dopoptowhen(pTHX_ I32 startingblock) | |
1473 | { | |
97aff369 | 1474 | dVAR; |
0d863452 RH |
1475 | I32 i; |
1476 | for (i = startingblock; i >= 0; i--) { | |
1477 | register const PERL_CONTEXT *cx = &cxstack[i]; | |
1478 | switch (CxTYPE(cx)) { | |
1479 | default: | |
1480 | continue; | |
1481 | case CXt_WHEN: | |
1482 | DEBUG_l( Perl_deb(aTHX_ "(Found when #%ld)\n", (long)i)); | |
1483 | return i; | |
1484 | } | |
1485 | } | |
1486 | return i; | |
1487 | } | |
1488 | ||
a0d0e21e | 1489 | void |
864dbfa3 | 1490 | Perl_dounwind(pTHX_ I32 cxix) |
a0d0e21e | 1491 | { |
97aff369 | 1492 | dVAR; |
a0d0e21e LW |
1493 | I32 optype; |
1494 | ||
1495 | while (cxstack_ix > cxix) { | |
b0d9ce38 | 1496 | SV *sv; |
06b5626a | 1497 | register PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c90c0ff4 | 1498 | DEBUG_l(PerlIO_printf(Perl_debug_log, "Unwinding block %ld, type %s\n", |
22c35a8c | 1499 | (long) cxstack_ix, PL_block_type[CxTYPE(cx)])); |
a0d0e21e | 1500 | /* Note: we don't need to restore the base context info till the end. */ |
6b35e009 | 1501 | switch (CxTYPE(cx)) { |
c90c0ff4 | 1502 | case CXt_SUBST: |
1503 | POPSUBST(cx); | |
1504 | continue; /* not break */ | |
a0d0e21e | 1505 | case CXt_SUB: |
b0d9ce38 GS |
1506 | POPSUB(cx,sv); |
1507 | LEAVESUB(sv); | |
a0d0e21e LW |
1508 | break; |
1509 | case CXt_EVAL: | |
1510 | POPEVAL(cx); | |
1511 | break; | |
c6fdafd0 | 1512 | case CXt_LOOP_LAZYIV: |
d01136d6 | 1513 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
1514 | case CXt_LOOP_FOR: |
1515 | case CXt_LOOP_PLAIN: | |
a0d0e21e LW |
1516 | POPLOOP(cx); |
1517 | break; | |
0a753a76 | 1518 | case CXt_NULL: |
a0d0e21e | 1519 | break; |
7766f137 GS |
1520 | case CXt_FORMAT: |
1521 | POPFORMAT(cx); | |
1522 | break; | |
a0d0e21e | 1523 | } |
c90c0ff4 | 1524 | cxstack_ix--; |
a0d0e21e | 1525 | } |
1b6737cc | 1526 | PERL_UNUSED_VAR(optype); |
a0d0e21e LW |
1527 | } |
1528 | ||
5a844595 GS |
1529 | void |
1530 | Perl_qerror(pTHX_ SV *err) | |
1531 | { | |
97aff369 | 1532 | dVAR; |
7918f24d NC |
1533 | |
1534 | PERL_ARGS_ASSERT_QERROR; | |
1535 | ||
5a844595 GS |
1536 | if (PL_in_eval) |
1537 | sv_catsv(ERRSV, err); | |
1538 | else if (PL_errors) | |
1539 | sv_catsv(PL_errors, err); | |
1540 | else | |
be2597df | 1541 | Perl_warn(aTHX_ "%"SVf, SVfARG(err)); |
13765c85 DM |
1542 | if (PL_parser) |
1543 | ++PL_parser->error_count; | |
5a844595 GS |
1544 | } |
1545 | ||
bb4c52e0 | 1546 | void |
7d0994e0 | 1547 | Perl_die_where(pTHX_ SV *msv) |
a0d0e21e | 1548 | { |
27da23d5 | 1549 | dVAR; |
87582a92 | 1550 | |
3280af22 | 1551 | if (PL_in_eval) { |
a0d0e21e | 1552 | I32 cxix; |
a0d0e21e | 1553 | I32 gimme; |
a0d0e21e | 1554 | |
7d0994e0 | 1555 | if (msv) { |
faef0170 | 1556 | if (PL_in_eval & EVAL_KEEPERR) { |
bfed75c6 | 1557 | static const char prefix[] = "\t(in cleanup) "; |
2d03de9c | 1558 | SV * const err = ERRSV; |
c445ea15 | 1559 | const char *e = NULL; |
98eae8f5 | 1560 | if (!SvPOK(err)) |
76f68e9b | 1561 | sv_setpvs(err,""); |
7d0994e0 | 1562 | else if (SvCUR(err) >= sizeof(prefix)+SvCUR(msv)-1) { |
0510663f | 1563 | STRLEN len; |
7d0994e0 GG |
1564 | STRLEN msglen; |
1565 | const char* message = SvPV_const(msv, msglen); | |
349d4f2f | 1566 | e = SvPV_const(err, len); |
0510663f | 1567 | e += len - msglen; |
98eae8f5 | 1568 | if (*e != *message || strNE(e,message)) |
c445ea15 | 1569 | e = NULL; |
98eae8f5 GS |
1570 | } |
1571 | if (!e) { | |
a2a5de95 | 1572 | STRLEN start; |
7d0994e0 | 1573 | SvGROW(err, SvCUR(err)+sizeof(prefix)+SvCUR(msv)); |
98eae8f5 | 1574 | sv_catpvn(err, prefix, sizeof(prefix)-1); |
7d0994e0 GG |
1575 | sv_catsv(err, msv); |
1576 | start = SvCUR(err)-SvCUR(msv)-sizeof(prefix)+1; | |
a2a5de95 NC |
1577 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "%s", |
1578 | SvPVX_const(err)+start); | |
4633a7c4 | 1579 | } |
4633a7c4 | 1580 | } |
1aa99e6b | 1581 | else { |
7d0994e0 GG |
1582 | STRLEN msglen; |
1583 | const char* message = SvPV_const(msv, msglen); | |
06bf62c7 | 1584 | sv_setpvn(ERRSV, message, msglen); |
7d0994e0 | 1585 | SvFLAGS(ERRSV) |= SvFLAGS(msv) & SVf_UTF8; |
1aa99e6b | 1586 | } |
4633a7c4 | 1587 | } |
4e6ea2c3 | 1588 | |
5a844595 GS |
1589 | while ((cxix = dopoptoeval(cxstack_ix)) < 0 |
1590 | && PL_curstackinfo->si_prev) | |
1591 | { | |
bac4b2ad | 1592 | dounwind(-1); |
d3acc0f7 | 1593 | POPSTACK; |
bac4b2ad | 1594 | } |
e336de0d | 1595 | |
a0d0e21e LW |
1596 | if (cxix >= 0) { |
1597 | I32 optype; | |
35a4481c | 1598 | register PERL_CONTEXT *cx; |
901017d6 | 1599 | SV **newsp; |
a0d0e21e LW |
1600 | |
1601 | if (cxix < cxstack_ix) | |
1602 | dounwind(cxix); | |
1603 | ||
3280af22 | 1604 | POPBLOCK(cx,PL_curpm); |
6b35e009 | 1605 | if (CxTYPE(cx) != CXt_EVAL) { |
7d0994e0 GG |
1606 | STRLEN msglen; |
1607 | const char* message = SvPVx_const( msv ? msv : ERRSV, msglen); | |
10edeb5d | 1608 | PerlIO_write(Perl_error_log, (const char *)"panic: die ", 11); |
bf49b057 | 1609 | PerlIO_write(Perl_error_log, message, msglen); |
a0d0e21e LW |
1610 | my_exit(1); |
1611 | } | |
1612 | POPEVAL(cx); | |
1613 | ||
1614 | if (gimme == G_SCALAR) | |
3280af22 NIS |
1615 | *++newsp = &PL_sv_undef; |
1616 | PL_stack_sp = newsp; | |
a0d0e21e LW |
1617 | |
1618 | LEAVE; | |
748a9306 | 1619 | |
7fb6a879 GS |
1620 | /* LEAVE could clobber PL_curcop (see save_re_context()) |
1621 | * XXX it might be better to find a way to avoid messing with | |
1622 | * PL_curcop in save_re_context() instead, but this is a more | |
1623 | * minimal fix --GSAR */ | |
1624 | PL_curcop = cx->blk_oldcop; | |
1625 | ||
7a2e2cd6 | 1626 | if (optype == OP_REQUIRE) { |
44f8325f | 1627 | const char* const msg = SvPVx_nolen_const(ERRSV); |
901017d6 | 1628 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 1629 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 1630 | &PL_sv_undef, 0); |
5a844595 GS |
1631 | DIE(aTHX_ "%sCompilation failed in require", |
1632 | *msg ? msg : "Unknown error\n"); | |
7a2e2cd6 | 1633 | } |
f39bc417 | 1634 | assert(CxTYPE(cx) == CXt_EVAL); |
bb4c52e0 GG |
1635 | PL_restartop = cx->blk_eval.retop; |
1636 | JMPENV_JUMP(3); | |
1637 | /* NOTREACHED */ | |
a0d0e21e LW |
1638 | } |
1639 | } | |
87582a92 | 1640 | |
7d0994e0 | 1641 | write_to_stderr( msv ? msv : ERRSV ); |
f86702cc | 1642 | my_failure_exit(); |
1643 | /* NOTREACHED */ | |
a0d0e21e LW |
1644 | } |
1645 | ||
1646 | PP(pp_xor) | |
1647 | { | |
97aff369 | 1648 | dVAR; dSP; dPOPTOPssrl; |
a0d0e21e LW |
1649 | if (SvTRUE(left) != SvTRUE(right)) |
1650 | RETSETYES; | |
1651 | else | |
1652 | RETSETNO; | |
1653 | } | |
1654 | ||
a0d0e21e LW |
1655 | PP(pp_caller) |
1656 | { | |
97aff369 | 1657 | dVAR; |
39644a26 | 1658 | dSP; |
a0d0e21e | 1659 | register I32 cxix = dopoptosub(cxstack_ix); |
901017d6 AL |
1660 | register const PERL_CONTEXT *cx; |
1661 | register const PERL_CONTEXT *ccstack = cxstack; | |
1662 | const PERL_SI *top_si = PL_curstackinfo; | |
54310121 | 1663 | I32 gimme; |
06b5626a | 1664 | const char *stashname; |
a0d0e21e LW |
1665 | I32 count = 0; |
1666 | ||
1667 | if (MAXARG) | |
1668 | count = POPi; | |
27d41816 | 1669 | |
a0d0e21e | 1670 | for (;;) { |
2c375eb9 GS |
1671 | /* we may be in a higher stacklevel, so dig down deeper */ |
1672 | while (cxix < 0 && top_si->si_type != PERLSI_MAIN) { | |
1673 | top_si = top_si->si_prev; | |
1674 | ccstack = top_si->si_cxstack; | |
1675 | cxix = dopoptosub_at(ccstack, top_si->si_cxix); | |
1676 | } | |
a0d0e21e | 1677 | if (cxix < 0) { |
27d41816 DM |
1678 | if (GIMME != G_ARRAY) { |
1679 | EXTEND(SP, 1); | |
a0d0e21e | 1680 | RETPUSHUNDEF; |
27d41816 | 1681 | } |
a0d0e21e LW |
1682 | RETURN; |
1683 | } | |
f2a7f298 DG |
1684 | /* caller() should not report the automatic calls to &DB::sub */ |
1685 | if (PL_DBsub && GvCV(PL_DBsub) && cxix >= 0 && | |
3280af22 | 1686 | ccstack[cxix].blk_sub.cv == GvCV(PL_DBsub)) |
a0d0e21e LW |
1687 | count++; |
1688 | if (!count--) | |
1689 | break; | |
2c375eb9 | 1690 | cxix = dopoptosub_at(ccstack, cxix - 1); |
a0d0e21e | 1691 | } |
2c375eb9 GS |
1692 | |
1693 | cx = &ccstack[cxix]; | |
7766f137 | 1694 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
f54cb97a | 1695 | const I32 dbcxix = dopoptosub_at(ccstack, cxix - 1); |
2c375eb9 | 1696 | /* We expect that ccstack[dbcxix] is CXt_SUB, anyway, the |
06a5b730 | 1697 | field below is defined for any cx. */ |
f2a7f298 DG |
1698 | /* caller() should not report the automatic calls to &DB::sub */ |
1699 | if (PL_DBsub && GvCV(PL_DBsub) && dbcxix >= 0 && ccstack[dbcxix].blk_sub.cv == GvCV(PL_DBsub)) | |
2c375eb9 | 1700 | cx = &ccstack[dbcxix]; |
06a5b730 | 1701 | } |
1702 | ||
ed094faf | 1703 | stashname = CopSTASHPV(cx->blk_oldcop); |
a0d0e21e | 1704 | if (GIMME != G_ARRAY) { |
27d41816 | 1705 | EXTEND(SP, 1); |
ed094faf | 1706 | if (!stashname) |
3280af22 | 1707 | PUSHs(&PL_sv_undef); |
49d8d3a1 MB |
1708 | else { |
1709 | dTARGET; | |
ed094faf | 1710 | sv_setpv(TARG, stashname); |
49d8d3a1 MB |
1711 | PUSHs(TARG); |
1712 | } | |
a0d0e21e LW |
1713 | RETURN; |
1714 | } | |
a0d0e21e | 1715 | |
b3ca2e83 | 1716 | EXTEND(SP, 11); |
27d41816 | 1717 | |
ed094faf | 1718 | if (!stashname) |
3280af22 | 1719 | PUSHs(&PL_sv_undef); |
49d8d3a1 | 1720 | else |
6e449a3a MHM |
1721 | mPUSHs(newSVpv(stashname, 0)); |
1722 | mPUSHs(newSVpv(OutCopFILE(cx->blk_oldcop), 0)); | |
1723 | mPUSHi((I32)CopLINE(cx->blk_oldcop)); | |
a0d0e21e LW |
1724 | if (!MAXARG) |
1725 | RETURN; | |
7766f137 | 1726 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
0bd48802 | 1727 | GV * const cvgv = CvGV(ccstack[cxix].blk_sub.cv); |
7766f137 | 1728 | /* So is ccstack[dbcxix]. */ |
07b8c804 | 1729 | if (isGV(cvgv)) { |
561b68a9 | 1730 | SV * const sv = newSV(0); |
c445ea15 | 1731 | gv_efullname3(sv, cvgv, NULL); |
6e449a3a | 1732 | mPUSHs(sv); |
bf38a478 | 1733 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 RGS |
1734 | } |
1735 | else { | |
84bafc02 | 1736 | PUSHs(newSVpvs_flags("(unknown)", SVs_TEMP)); |
bf38a478 | 1737 | PUSHs(boolSV(CxHASARGS(cx))); |
07b8c804 | 1738 | } |
a0d0e21e LW |
1739 | } |
1740 | else { | |
84bafc02 | 1741 | PUSHs(newSVpvs_flags("(eval)", SVs_TEMP)); |
6e449a3a | 1742 | mPUSHi(0); |
a0d0e21e | 1743 | } |
54310121 | 1744 | gimme = (I32)cx->blk_gimme; |
1745 | if (gimme == G_VOID) | |
3280af22 | 1746 | PUSHs(&PL_sv_undef); |
54310121 | 1747 | else |
98625aca | 1748 | PUSHs(boolSV((gimme & G_WANT) == G_ARRAY)); |
6b35e009 | 1749 | if (CxTYPE(cx) == CXt_EVAL) { |
811a4de9 | 1750 | /* eval STRING */ |
85a64632 | 1751 | if (CxOLD_OP_TYPE(cx) == OP_ENTEREVAL) { |
4633a7c4 | 1752 | PUSHs(cx->blk_eval.cur_text); |
3280af22 | 1753 | PUSHs(&PL_sv_no); |
0f79a09d | 1754 | } |
811a4de9 | 1755 | /* require */ |
0f79a09d | 1756 | else if (cx->blk_eval.old_namesv) { |
6e449a3a | 1757 | mPUSHs(newSVsv(cx->blk_eval.old_namesv)); |
3280af22 | 1758 | PUSHs(&PL_sv_yes); |
06a5b730 | 1759 | } |
811a4de9 GS |
1760 | /* eval BLOCK (try blocks have old_namesv == 0) */ |
1761 | else { | |
1762 | PUSHs(&PL_sv_undef); | |
1763 | PUSHs(&PL_sv_undef); | |
1764 | } | |
4633a7c4 | 1765 | } |
a682de96 GS |
1766 | else { |
1767 | PUSHs(&PL_sv_undef); | |
1768 | PUSHs(&PL_sv_undef); | |
1769 | } | |
bafb2adc | 1770 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx) |
ed094faf | 1771 | && CopSTASH_eq(PL_curcop, PL_debstash)) |
4633a7c4 | 1772 | { |
66a1b24b AL |
1773 | AV * const ary = cx->blk_sub.argarray; |
1774 | const int off = AvARRAY(ary) - AvALLOC(ary); | |
a0d0e21e | 1775 | |
3280af22 | 1776 | if (!PL_dbargs) { |
af3885a0 NC |
1777 | PL_dbargs = GvAV(gv_AVadd(gv_fetchpvs("DB::args", GV_ADDMULTI, |
1778 | SVt_PVAV))); | |
3ddcf04c | 1779 | AvREAL_off(PL_dbargs); /* XXX should be REIFY (see av.h) */ |
a0d0e21e LW |
1780 | } |
1781 | ||
3280af22 NIS |
1782 | if (AvMAX(PL_dbargs) < AvFILLp(ary) + off) |
1783 | av_extend(PL_dbargs, AvFILLp(ary) + off); | |
1784 | Copy(AvALLOC(ary), AvARRAY(PL_dbargs), AvFILLp(ary) + 1 + off, SV*); | |
1785 | AvFILLp(PL_dbargs) = AvFILLp(ary) + off; | |
a0d0e21e | 1786 | } |
f3aa04c2 GS |
1787 | /* XXX only hints propagated via op_private are currently |
1788 | * visible (others are not easily accessible, since they | |
1789 | * use the global PL_hints) */ | |
6e449a3a | 1790 | mPUSHi(CopHINTS_get(cx->blk_oldcop)); |
e476b1b5 GS |
1791 | { |
1792 | SV * mask ; | |
72dc9ed5 | 1793 | STRLEN * const old_warnings = cx->blk_oldcop->cop_warnings ; |
114bafba | 1794 | |
ac27b0f5 | 1795 | if (old_warnings == pWARN_NONE || |
114bafba | 1796 | (old_warnings == pWARN_STD && (PL_dowarn & G_WARN_ON) == 0)) |
e476b1b5 | 1797 | mask = newSVpvn(WARN_NONEstring, WARNsize) ; |
ac27b0f5 | 1798 | else if (old_warnings == pWARN_ALL || |
75b6c4ca RGS |
1799 | (old_warnings == pWARN_STD && PL_dowarn & G_WARN_ON)) { |
1800 | /* Get the bit mask for $warnings::Bits{all}, because | |
1801 | * it could have been extended by warnings::register */ | |
1802 | SV **bits_all; | |
6673a63c | 1803 | HV * const bits = get_hv("warnings::Bits", 0); |
017a3ce5 | 1804 | if (bits && (bits_all=hv_fetchs(bits, "all", FALSE))) { |
75b6c4ca RGS |
1805 | mask = newSVsv(*bits_all); |
1806 | } | |
1807 | else { | |
1808 | mask = newSVpvn(WARN_ALLstring, WARNsize) ; | |
1809 | } | |
1810 | } | |
e476b1b5 | 1811 | else |
72dc9ed5 | 1812 | mask = newSVpvn((char *) (old_warnings + 1), old_warnings[0]); |
6e449a3a | 1813 | mPUSHs(mask); |
e476b1b5 | 1814 | } |
b3ca2e83 | 1815 | |
c28fe1ec | 1816 | PUSHs(cx->blk_oldcop->cop_hints_hash ? |
b3ca2e83 | 1817 | sv_2mortal(newRV_noinc( |
ad64d0ec NC |
1818 | MUTABLE_SV(Perl_refcounted_he_chain_2hv(aTHX_ |
1819 | cx->blk_oldcop->cop_hints_hash)))) | |
b3ca2e83 | 1820 | : &PL_sv_undef); |
a0d0e21e LW |
1821 | RETURN; |
1822 | } | |
1823 | ||
a0d0e21e LW |
1824 | PP(pp_reset) |
1825 | { | |
97aff369 | 1826 | dVAR; |
39644a26 | 1827 | dSP; |
10edeb5d | 1828 | const char * const tmps = (MAXARG < 1) ? (const char *)"" : POPpconstx; |
11faa288 | 1829 | sv_reset(tmps, CopSTASH(PL_curcop)); |
3280af22 | 1830 | PUSHs(&PL_sv_yes); |
a0d0e21e LW |
1831 | RETURN; |
1832 | } | |
1833 | ||
dd2155a4 DM |
1834 | /* like pp_nextstate, but used instead when the debugger is active */ |
1835 | ||
a0d0e21e LW |
1836 | PP(pp_dbstate) |
1837 | { | |
27da23d5 | 1838 | dVAR; |
533c011a | 1839 | PL_curcop = (COP*)PL_op; |
a0d0e21e | 1840 | TAINT_NOT; /* Each statement is presumed innocent */ |
3280af22 | 1841 | PL_stack_sp = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; |
a0d0e21e LW |
1842 | FREETMPS; |
1843 | ||
5df8de69 DM |
1844 | if (PL_op->op_flags & OPf_SPECIAL /* breakpoint */ |
1845 | || SvIV(PL_DBsingle) || SvIV(PL_DBsignal) || SvIV(PL_DBtrace)) | |
a0d0e21e | 1846 | { |
39644a26 | 1847 | dSP; |
c09156bb | 1848 | register PERL_CONTEXT *cx; |
f54cb97a | 1849 | const I32 gimme = G_ARRAY; |
eb160463 | 1850 | U8 hasargs; |
0bd48802 AL |
1851 | GV * const gv = PL_DBgv; |
1852 | register CV * const cv = GvCV(gv); | |
a0d0e21e | 1853 | |
a0d0e21e | 1854 | if (!cv) |
cea2e8a9 | 1855 | DIE(aTHX_ "No DB::DB routine defined"); |
a0d0e21e | 1856 | |
aea4f609 DM |
1857 | if (CvDEPTH(cv) >= 1 && !(PL_debug & DEBUG_DB_RECURSE_FLAG)) |
1858 | /* don't do recursive DB::DB call */ | |
a0d0e21e | 1859 | return NORMAL; |
748a9306 | 1860 | |
4633a7c4 LW |
1861 | ENTER; |
1862 | SAVETMPS; | |
1863 | ||
3280af22 | 1864 | SAVEI32(PL_debug); |
55497cff | 1865 | SAVESTACK_POS(); |
3280af22 | 1866 | PL_debug = 0; |
748a9306 | 1867 | hasargs = 0; |
924508f0 | 1868 | SPAGAIN; |
748a9306 | 1869 | |
aed2304a | 1870 | if (CvISXSUB(cv)) { |
c127bd3a SF |
1871 | CvDEPTH(cv)++; |
1872 | PUSHMARK(SP); | |
1873 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
1874 | CvDEPTH(cv)--; | |
1875 | FREETMPS; | |
1876 | LEAVE; | |
1877 | return NORMAL; | |
1878 | } | |
1879 | else { | |
1880 | PUSHBLOCK(cx, CXt_SUB, SP); | |
1881 | PUSHSUB_DB(cx); | |
1882 | cx->blk_sub.retop = PL_op->op_next; | |
1883 | CvDEPTH(cv)++; | |
1884 | SAVECOMPPAD(); | |
1885 | PAD_SET_CUR_NOSAVE(CvPADLIST(cv), 1); | |
1886 | RETURNOP(CvSTART(cv)); | |
1887 | } | |
a0d0e21e LW |
1888 | } |
1889 | else | |
1890 | return NORMAL; | |
1891 | } | |
1892 | ||
a0d0e21e LW |
1893 | PP(pp_enteriter) |
1894 | { | |
27da23d5 | 1895 | dVAR; dSP; dMARK; |
c09156bb | 1896 | register PERL_CONTEXT *cx; |
f54cb97a | 1897 | const I32 gimme = GIMME_V; |
a0d0e21e | 1898 | SV **svp; |
840fe433 | 1899 | U8 cxtype = CXt_LOOP_FOR; |
7766f137 | 1900 | #ifdef USE_ITHREADS |
e846cb92 | 1901 | PAD *iterdata; |
7766f137 | 1902 | #endif |
a0d0e21e | 1903 | |
4633a7c4 LW |
1904 | ENTER; |
1905 | SAVETMPS; | |
1906 | ||
533c011a | 1907 | if (PL_op->op_targ) { |
14f338dc DM |
1908 | if (PL_op->op_private & OPpLVAL_INTRO) { /* for my $x (...) */ |
1909 | SvPADSTALE_off(PAD_SVl(PL_op->op_targ)); | |
1910 | SAVESETSVFLAGS(PAD_SVl(PL_op->op_targ), | |
1911 | SVs_PADSTALE, SVs_PADSTALE); | |
1912 | } | |
09edbca0 | 1913 | SAVEPADSVANDMORTALIZE(PL_op->op_targ); |
c3564e5c | 1914 | #ifndef USE_ITHREADS |
dd2155a4 | 1915 | svp = &PAD_SVl(PL_op->op_targ); /* "my" variable */ |
c3564e5c | 1916 | #else |
e846cb92 | 1917 | iterdata = NULL; |
7766f137 | 1918 | #endif |
54b9620d MB |
1919 | } |
1920 | else { | |
159b6efe | 1921 | GV * const gv = MUTABLE_GV(POPs); |
7766f137 | 1922 | svp = &GvSV(gv); /* symbol table variable */ |
0214ae40 | 1923 | SAVEGENERICSV(*svp); |
561b68a9 | 1924 | *svp = newSV(0); |
7766f137 | 1925 | #ifdef USE_ITHREADS |
e846cb92 | 1926 | iterdata = (PAD*)gv; |
7766f137 | 1927 | #endif |
54b9620d | 1928 | } |
4633a7c4 | 1929 | |
0d863452 RH |
1930 | if (PL_op->op_private & OPpITER_DEF) |
1931 | cxtype |= CXp_FOR_DEF; | |
1932 | ||
a0d0e21e LW |
1933 | ENTER; |
1934 | ||
7766f137 GS |
1935 | PUSHBLOCK(cx, cxtype, SP); |
1936 | #ifdef USE_ITHREADS | |
e846cb92 | 1937 | PUSHLOOP_FOR(cx, iterdata, MARK, PL_op->op_targ); |
7766f137 | 1938 | #else |
52d1f6fb | 1939 | PUSHLOOP_FOR(cx, svp, MARK, 0); |
7766f137 | 1940 | #endif |
533c011a | 1941 | if (PL_op->op_flags & OPf_STACKED) { |
d01136d6 BS |
1942 | SV *maybe_ary = POPs; |
1943 | if (SvTYPE(maybe_ary) != SVt_PVAV) { | |
89ea2908 | 1944 | dPOPss; |
d01136d6 | 1945 | SV * const right = maybe_ary; |
984a4bea RD |
1946 | SvGETMAGIC(sv); |
1947 | SvGETMAGIC(right); | |
4fe3f0fa | 1948 | if (RANGE_IS_NUMERIC(sv,right)) { |
d01136d6 | 1949 | cx->cx_type &= ~CXTYPEMASK; |
c6fdafd0 NC |
1950 | cx->cx_type |= CXt_LOOP_LAZYIV; |
1951 | /* Make sure that no-one re-orders cop.h and breaks our | |
1952 | assumptions */ | |
1953 | assert(CxTYPE(cx) == CXt_LOOP_LAZYIV); | |
a2309040 JH |
1954 | #ifdef NV_PRESERVES_UV |
1955 | if ((SvOK(sv) && ((SvNV(sv) < (NV)IV_MIN) || | |
1956 | (SvNV(sv) > (NV)IV_MAX))) | |
1957 | || | |
1958 | (SvOK(right) && ((SvNV(right) > (NV)IV_MAX) || | |
1959 | (SvNV(right) < (NV)IV_MIN)))) | |
1960 | #else | |
1961 | if ((SvOK(sv) && ((SvNV(sv) <= (NV)IV_MIN) | |
1962 | || | |
1963 | ((SvNV(sv) > 0) && | |
1964 | ((SvUV(sv) > (UV)IV_MAX) || | |
1965 | (SvNV(sv) > (NV)UV_MAX))))) | |
1966 | || | |
1967 | (SvOK(right) && ((SvNV(right) <= (NV)IV_MIN) | |
1968 | || | |
1969 | ((SvNV(right) > 0) && | |
1970 | ((SvUV(right) > (UV)IV_MAX) || | |
1971 | (SvNV(right) > (NV)UV_MAX)))))) | |
1972 | #endif | |
076d9a11 | 1973 | DIE(aTHX_ "Range iterator outside integer range"); |
d01136d6 BS |
1974 | cx->blk_loop.state_u.lazyiv.cur = SvIV(sv); |
1975 | cx->blk_loop.state_u.lazyiv.end = SvIV(right); | |
d4665a05 DM |
1976 | #ifdef DEBUGGING |
1977 | /* for correct -Dstv display */ | |
1978 | cx->blk_oldsp = sp - PL_stack_base; | |
1979 | #endif | |
89ea2908 | 1980 | } |
3f63a782 | 1981 | else { |
d01136d6 BS |
1982 | cx->cx_type &= ~CXTYPEMASK; |
1983 | cx->cx_type |= CXt_LOOP_LAZYSV; | |
1984 | /* Make sure that no-one re-orders cop.h and breaks our | |
1985 | assumptions */ | |
1986 | assert(CxTYPE(cx) == CXt_LOOP_LAZYSV); | |
1987 | cx->blk_loop.state_u.lazysv.cur = newSVsv(sv); | |
1988 | cx->blk_loop.state_u.lazysv.end = right; | |
1989 | SvREFCNT_inc(right); | |
1990 | (void) SvPV_force_nolen(cx->blk_loop.state_u.lazysv.cur); | |
267cc4a8 NC |
1991 | /* This will do the upgrade to SVt_PV, and warn if the value |
1992 | is uninitialised. */ | |
10516c54 | 1993 | (void) SvPV_nolen_const(right); |
267cc4a8 NC |
1994 | /* Doing this avoids a check every time in pp_iter in pp_hot.c |
1995 | to replace !SvOK() with a pointer to "". */ | |
1996 | if (!SvOK(right)) { | |
1997 | SvREFCNT_dec(right); | |
d01136d6 | 1998 | cx->blk_loop.state_u.lazysv.end = &PL_sv_no; |
267cc4a8 | 1999 | } |
3f63a782 | 2000 | } |
89ea2908 | 2001 | } |
d01136d6 | 2002 | else /* SvTYPE(maybe_ary) == SVt_PVAV */ { |
502c6561 | 2003 | cx->blk_loop.state_u.ary.ary = MUTABLE_AV(maybe_ary); |
d01136d6 BS |
2004 | SvREFCNT_inc(maybe_ary); |
2005 | cx->blk_loop.state_u.ary.ix = | |
2006 | (PL_op->op_private & OPpITER_REVERSED) ? | |
2007 | AvFILL(cx->blk_loop.state_u.ary.ary) + 1 : | |
2008 | -1; | |
ef3e5ea9 | 2009 | } |
89ea2908 | 2010 | } |
d01136d6 BS |
2011 | else { /* iterating over items on the stack */ |
2012 | cx->blk_loop.state_u.ary.ary = NULL; /* means to use the stack */ | |
ef3e5ea9 | 2013 | if (PL_op->op_private & OPpITER_REVERSED) { |
d01136d6 | 2014 | cx->blk_loop.state_u.ary.ix = cx->blk_oldsp + 1; |
ef3e5ea9 NC |
2015 | } |
2016 | else { | |
d01136d6 | 2017 | cx->blk_loop.state_u.ary.ix = MARK - PL_stack_base; |
ef3e5ea9 | 2018 | } |
4633a7c4 | 2019 | } |
a0d0e21e LW |
2020 | |
2021 | RETURN; | |
2022 | } | |
2023 | ||
2024 | PP(pp_enterloop) | |
2025 | { | |
27da23d5 | 2026 | dVAR; dSP; |
c09156bb | 2027 | register PERL_CONTEXT *cx; |
f54cb97a | 2028 | const I32 gimme = GIMME_V; |
a0d0e21e LW |
2029 | |
2030 | ENTER; | |
2031 | SAVETMPS; | |
2032 | ENTER; | |
2033 | ||
3b719c58 NC |
2034 | PUSHBLOCK(cx, CXt_LOOP_PLAIN, SP); |
2035 | PUSHLOOP_PLAIN(cx, SP); | |
a0d0e21e LW |
2036 | |
2037 | RETURN; | |
2038 | } | |
2039 | ||
2040 | PP(pp_leaveloop) | |
2041 | { | |
27da23d5 | 2042 | dVAR; dSP; |
c09156bb | 2043 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
2044 | I32 gimme; |
2045 | SV **newsp; | |
2046 | PMOP *newpm; | |
2047 | SV **mark; | |
2048 | ||
2049 | POPBLOCK(cx,newpm); | |
3b719c58 | 2050 | assert(CxTYPE_is_LOOP(cx)); |
4fdae800 | 2051 | mark = newsp; |
a8bba7fa | 2052 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
f86702cc | 2053 | |
a1f49e72 | 2054 | TAINT_NOT; |
54310121 | 2055 | if (gimme == G_VOID) |
6f207bd3 | 2056 | NOOP; |
54310121 | 2057 | else if (gimme == G_SCALAR) { |
2058 | if (mark < SP) | |
2059 | *++newsp = sv_mortalcopy(*SP); | |
2060 | else | |
3280af22 | 2061 | *++newsp = &PL_sv_undef; |
a0d0e21e LW |
2062 | } |
2063 | else { | |
a1f49e72 | 2064 | while (mark < SP) { |
a0d0e21e | 2065 | *++newsp = sv_mortalcopy(*++mark); |
a1f49e72 CS |
2066 | TAINT_NOT; /* Each item is independent */ |
2067 | } | |
a0d0e21e | 2068 | } |
f86702cc | 2069 | SP = newsp; |
2070 | PUTBACK; | |
2071 | ||
a8bba7fa | 2072 | POPLOOP(cx); /* Stack values are safe: release loop vars ... */ |
3280af22 | 2073 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2074 | |
a0d0e21e LW |
2075 | LEAVE; |
2076 | LEAVE; | |
2077 | ||
f86702cc | 2078 | return NORMAL; |
a0d0e21e LW |
2079 | } |
2080 | ||
2081 | PP(pp_return) | |
2082 | { | |
27da23d5 | 2083 | dVAR; dSP; dMARK; |
c09156bb | 2084 | register PERL_CONTEXT *cx; |
f86702cc | 2085 | bool popsub2 = FALSE; |
b45de488 | 2086 | bool clear_errsv = FALSE; |
a0d0e21e LW |
2087 | I32 gimme; |
2088 | SV **newsp; | |
2089 | PMOP *newpm; | |
2090 | I32 optype = 0; | |
b0d9ce38 | 2091 | SV *sv; |
f39bc417 | 2092 | OP *retop; |
a0d0e21e | 2093 | |
0bd48802 AL |
2094 | const I32 cxix = dopoptosub(cxstack_ix); |
2095 | ||
9850bf21 RH |
2096 | if (cxix < 0) { |
2097 | if (CxMULTICALL(cxstack)) { /* In this case we must be in a | |
2098 | * sort block, which is a CXt_NULL | |
2099 | * not a CXt_SUB */ | |
2100 | dounwind(0); | |
d7507f74 RH |
2101 | PL_stack_base[1] = *PL_stack_sp; |
2102 | PL_stack_sp = PL_stack_base + 1; | |
a0d0e21e LW |
2103 | return 0; |
2104 | } | |
9850bf21 RH |
2105 | else |
2106 | DIE(aTHX_ "Can't return outside a subroutine"); | |
a0d0e21e | 2107 | } |
a0d0e21e LW |
2108 | if (cxix < cxstack_ix) |
2109 | dounwind(cxix); | |
2110 | ||
d7507f74 RH |
2111 | if (CxMULTICALL(&cxstack[cxix])) { |
2112 | gimme = cxstack[cxix].blk_gimme; | |
2113 | if (gimme == G_VOID) | |
2114 | PL_stack_sp = PL_stack_base; | |
2115 | else if (gimme == G_SCALAR) { | |
2116 | PL_stack_base[1] = *PL_stack_sp; | |
2117 | PL_stack_sp = PL_stack_base + 1; | |
2118 | } | |
9850bf21 | 2119 | return 0; |
d7507f74 | 2120 | } |
9850bf21 | 2121 | |
a0d0e21e | 2122 | POPBLOCK(cx,newpm); |
6b35e009 | 2123 | switch (CxTYPE(cx)) { |
a0d0e21e | 2124 | case CXt_SUB: |
f86702cc | 2125 | popsub2 = TRUE; |
f39bc417 | 2126 | retop = cx->blk_sub.retop; |
5dd42e15 | 2127 | cxstack_ix++; /* preserve cx entry on stack for use by POPSUB */ |
a0d0e21e LW |
2128 | break; |
2129 | case CXt_EVAL: | |
b45de488 GS |
2130 | if (!(PL_in_eval & EVAL_KEEPERR)) |
2131 | clear_errsv = TRUE; | |
a0d0e21e | 2132 | POPEVAL(cx); |
f39bc417 | 2133 | retop = cx->blk_eval.retop; |
1d76a5c3 GS |
2134 | if (CxTRYBLOCK(cx)) |
2135 | break; | |
067f92a0 | 2136 | lex_end(); |
748a9306 LW |
2137 | if (optype == OP_REQUIRE && |
2138 | (MARK == SP || (gimme == G_SCALAR && !SvTRUE(*SP))) ) | |
2139 | { | |
54310121 | 2140 | /* Unassume the success we assumed earlier. */ |
901017d6 | 2141 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 2142 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 2143 | DIE(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
748a9306 | 2144 | } |
a0d0e21e | 2145 | break; |
7766f137 GS |
2146 | case CXt_FORMAT: |
2147 | POPFORMAT(cx); | |
f39bc417 | 2148 | retop = cx->blk_sub.retop; |
7766f137 | 2149 | break; |
a0d0e21e | 2150 | default: |
cea2e8a9 | 2151 | DIE(aTHX_ "panic: return"); |
a0d0e21e LW |
2152 | } |
2153 | ||
a1f49e72 | 2154 | TAINT_NOT; |
a0d0e21e | 2155 | if (gimme == G_SCALAR) { |
a29cdaf0 IZ |
2156 | if (MARK < SP) { |
2157 | if (popsub2) { | |
a8bba7fa | 2158 | if (cx->blk_sub.cv && CvDEPTH(cx->blk_sub.cv) > 1) { |
a29cdaf0 IZ |
2159 | if (SvTEMP(TOPs)) { |
2160 | *++newsp = SvREFCNT_inc(*SP); | |
2161 | FREETMPS; | |
2162 | sv_2mortal(*newsp); | |
959e3673 GS |
2163 | } |
2164 | else { | |
2165 | sv = SvREFCNT_inc(*SP); /* FREETMPS could clobber it */ | |
a29cdaf0 | 2166 | FREETMPS; |
959e3673 GS |
2167 | *++newsp = sv_mortalcopy(sv); |
2168 | SvREFCNT_dec(sv); | |
a29cdaf0 | 2169 | } |
959e3673 GS |
2170 | } |
2171 | else | |
a29cdaf0 | 2172 | *++newsp = (SvTEMP(*SP)) ? *SP : sv_mortalcopy(*SP); |
959e3673 GS |
2173 | } |
2174 | else | |
a29cdaf0 | 2175 | *++newsp = sv_mortalcopy(*SP); |
959e3673 GS |
2176 | } |
2177 | else | |
3280af22 | 2178 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2179 | } |
54310121 | 2180 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2181 | while (++MARK <= SP) { |
f86702cc | 2182 | *++newsp = (popsub2 && SvTEMP(*MARK)) |
2183 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2184 | TAINT_NOT; /* Each item is independent */ |
2185 | } | |
a0d0e21e | 2186 | } |
3280af22 | 2187 | PL_stack_sp = newsp; |
a0d0e21e | 2188 | |
5dd42e15 | 2189 | LEAVE; |
f86702cc | 2190 | /* Stack values are safe: */ |
2191 | if (popsub2) { | |
5dd42e15 | 2192 | cxstack_ix--; |
b0d9ce38 | 2193 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2194 | } |
b0d9ce38 | 2195 | else |
c445ea15 | 2196 | sv = NULL; |
3280af22 | 2197 | PL_curpm = newpm; /* ... and pop $1 et al */ |
f86702cc | 2198 | |
b0d9ce38 | 2199 | LEAVESUB(sv); |
8433848b | 2200 | if (clear_errsv) { |
ab69dbc2 | 2201 | CLEAR_ERRSV(); |
8433848b | 2202 | } |
f39bc417 | 2203 | return retop; |
a0d0e21e LW |
2204 | } |
2205 | ||
2206 | PP(pp_last) | |
2207 | { | |
27da23d5 | 2208 | dVAR; dSP; |
a0d0e21e | 2209 | I32 cxix; |
c09156bb | 2210 | register PERL_CONTEXT *cx; |
f86702cc | 2211 | I32 pop2 = 0; |
a0d0e21e | 2212 | I32 gimme; |
8772537c | 2213 | I32 optype; |
a0d0e21e LW |
2214 | OP *nextop; |
2215 | SV **newsp; | |
2216 | PMOP *newpm; | |
a8bba7fa | 2217 | SV **mark; |
c445ea15 | 2218 | SV *sv = NULL; |
9d4ba2ae | 2219 | |
a0d0e21e | 2220 | |
533c011a | 2221 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2222 | cxix = dopoptoloop(cxstack_ix); |
2223 | if (cxix < 0) | |
a651a37d | 2224 | DIE(aTHX_ "Can't \"last\" outside a loop block"); |
a0d0e21e LW |
2225 | } |
2226 | else { | |
2227 | cxix = dopoptolabel(cPVOP->op_pv); | |
2228 | if (cxix < 0) | |
cea2e8a9 | 2229 | DIE(aTHX_ "Label not found for \"last %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2230 | } |
2231 | if (cxix < cxstack_ix) | |
2232 | dounwind(cxix); | |
2233 | ||
2234 | POPBLOCK(cx,newpm); | |
5dd42e15 | 2235 | cxstack_ix++; /* temporarily protect top context */ |
a8bba7fa | 2236 | mark = newsp; |
6b35e009 | 2237 | switch (CxTYPE(cx)) { |
c6fdafd0 | 2238 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2239 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2240 | case CXt_LOOP_FOR: |
2241 | case CXt_LOOP_PLAIN: | |
2242 | pop2 = CxTYPE(cx); | |
a8bba7fa | 2243 | newsp = PL_stack_base + cx->blk_loop.resetsp; |
022eaa24 | 2244 | nextop = cx->blk_loop.my_op->op_lastop->op_next; |
a0d0e21e | 2245 | break; |
f86702cc | 2246 | case CXt_SUB: |
f86702cc | 2247 | pop2 = CXt_SUB; |
f39bc417 | 2248 | nextop = cx->blk_sub.retop; |
a0d0e21e | 2249 | break; |
f86702cc | 2250 | case CXt_EVAL: |
2251 | POPEVAL(cx); | |
f39bc417 | 2252 | nextop = cx->blk_eval.retop; |
a0d0e21e | 2253 | break; |
7766f137 GS |
2254 | case CXt_FORMAT: |
2255 | POPFORMAT(cx); | |
f39bc417 | 2256 | nextop = cx->blk_sub.retop; |
7766f137 | 2257 | break; |
a0d0e21e | 2258 | default: |
cea2e8a9 | 2259 | DIE(aTHX_ "panic: last"); |
a0d0e21e LW |
2260 | } |
2261 | ||
a1f49e72 | 2262 | TAINT_NOT; |
a0d0e21e | 2263 | if (gimme == G_SCALAR) { |
f86702cc | 2264 | if (MARK < SP) |
2265 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*SP)) | |
2266 | ? *SP : sv_mortalcopy(*SP); | |
a0d0e21e | 2267 | else |
3280af22 | 2268 | *++newsp = &PL_sv_undef; |
a0d0e21e | 2269 | } |
54310121 | 2270 | else if (gimme == G_ARRAY) { |
a1f49e72 | 2271 | while (++MARK <= SP) { |
f86702cc | 2272 | *++newsp = ((pop2 == CXt_SUB) && SvTEMP(*MARK)) |
2273 | ? *MARK : sv_mortalcopy(*MARK); | |
a1f49e72 CS |
2274 | TAINT_NOT; /* Each item is independent */ |
2275 | } | |
f86702cc | 2276 | } |
2277 | SP = newsp; | |
2278 | PUTBACK; | |
2279 | ||
5dd42e15 DM |
2280 | LEAVE; |
2281 | cxstack_ix--; | |
f86702cc | 2282 | /* Stack values are safe: */ |
2283 | switch (pop2) { | |
c6fdafd0 | 2284 | case CXt_LOOP_LAZYIV: |
3b719c58 | 2285 | case CXt_LOOP_PLAIN: |
d01136d6 | 2286 | case CXt_LOOP_LAZYSV: |
3b719c58 | 2287 | case CXt_LOOP_FOR: |
a8bba7fa | 2288 | POPLOOP(cx); /* release loop vars ... */ |
4fdae800 | 2289 | LEAVE; |
f86702cc | 2290 | break; |
2291 | case CXt_SUB: | |
b0d9ce38 | 2292 | POPSUB(cx,sv); /* release CV and @_ ... */ |
f86702cc | 2293 | break; |
a0d0e21e | 2294 | } |
3280af22 | 2295 | PL_curpm = newpm; /* ... and pop $1 et al */ |
a0d0e21e | 2296 | |
b0d9ce38 | 2297 | LEAVESUB(sv); |
9d4ba2ae AL |
2298 | PERL_UNUSED_VAR(optype); |
2299 | PERL_UNUSED_VAR(gimme); | |
f86702cc | 2300 | return nextop; |
a0d0e21e LW |
2301 | } |
2302 | ||
2303 | PP(pp_next) | |
2304 | { | |
27da23d5 | 2305 | dVAR; |
a0d0e21e | 2306 | I32 cxix; |
c09156bb | 2307 | register PERL_CONTEXT *cx; |
85538317 | 2308 | I32 inner; |
a0d0e21e | 2309 | |
533c011a | 2310 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2311 | cxix = dopoptoloop(cxstack_ix); |
2312 | if (cxix < 0) | |
a651a37d | 2313 | DIE(aTHX_ "Can't \"next\" outside a loop block"); |
a0d0e21e LW |
2314 | } |
2315 | else { | |
2316 | cxix = dopoptolabel(cPVOP->op_pv); | |
2317 | if (cxix < 0) | |
cea2e8a9 | 2318 | DIE(aTHX_ "Label not found for \"next %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2319 | } |
2320 | if (cxix < cxstack_ix) | |
2321 | dounwind(cxix); | |
2322 | ||
85538317 GS |
2323 | /* clear off anything above the scope we're re-entering, but |
2324 | * save the rest until after a possible continue block */ | |
2325 | inner = PL_scopestack_ix; | |
1ba6ee2b | 2326 | TOPBLOCK(cx); |
85538317 GS |
2327 | if (PL_scopestack_ix < inner) |
2328 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
3a1b2b9e | 2329 | PL_curcop = cx->blk_oldcop; |
022eaa24 | 2330 | return CX_LOOP_NEXTOP_GET(cx); |
a0d0e21e LW |
2331 | } |
2332 | ||
2333 | PP(pp_redo) | |
2334 | { | |
27da23d5 | 2335 | dVAR; |
a0d0e21e | 2336 | I32 cxix; |
c09156bb | 2337 | register PERL_CONTEXT *cx; |
a0d0e21e | 2338 | I32 oldsave; |
a034e688 | 2339 | OP* redo_op; |
a0d0e21e | 2340 | |
533c011a | 2341 | if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e LW |
2342 | cxix = dopoptoloop(cxstack_ix); |
2343 | if (cxix < 0) | |
a651a37d | 2344 | DIE(aTHX_ "Can't \"redo\" outside a loop block"); |
a0d0e21e LW |
2345 | } |
2346 | else { | |
2347 | cxix = dopoptolabel(cPVOP->op_pv); | |
2348 | if (cxix < 0) | |
cea2e8a9 | 2349 | DIE(aTHX_ "Label not found for \"redo %s\"", cPVOP->op_pv); |
a0d0e21e LW |
2350 | } |
2351 | if (cxix < cxstack_ix) | |
2352 | dounwind(cxix); | |
2353 | ||
022eaa24 | 2354 | redo_op = cxstack[cxix].blk_loop.my_op->op_redoop; |
a034e688 DM |
2355 | if (redo_op->op_type == OP_ENTER) { |
2356 | /* pop one less context to avoid $x being freed in while (my $x..) */ | |
2357 | cxstack_ix++; | |
2358 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_BLOCK); | |
2359 | redo_op = redo_op->op_next; | |
2360 | } | |
2361 | ||
a0d0e21e | 2362 | TOPBLOCK(cx); |
3280af22 | 2363 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e | 2364 | LEAVE_SCOPE(oldsave); |
936c78b5 | 2365 | FREETMPS; |
3a1b2b9e | 2366 | PL_curcop = cx->blk_oldcop; |
a034e688 | 2367 | return redo_op; |
a0d0e21e LW |
2368 | } |
2369 | ||
0824fdcb | 2370 | STATIC OP * |
bfed75c6 | 2371 | S_dofindlabel(pTHX_ OP *o, const char *label, OP **opstack, OP **oplimit) |
a0d0e21e | 2372 | { |
97aff369 | 2373 | dVAR; |
a0d0e21e | 2374 | OP **ops = opstack; |
bfed75c6 | 2375 | static const char too_deep[] = "Target of goto is too deeply nested"; |
a0d0e21e | 2376 | |
7918f24d NC |
2377 | PERL_ARGS_ASSERT_DOFINDLABEL; |
2378 | ||
fc36a67e | 2379 | if (ops >= oplimit) |
cea2e8a9 | 2380 | Perl_croak(aTHX_ too_deep); |
11343788 MB |
2381 | if (o->op_type == OP_LEAVE || |
2382 | o->op_type == OP_SCOPE || | |
2383 | o->op_type == OP_LEAVELOOP || | |
33d34e4c | 2384 | o->op_type == OP_LEAVESUB || |
11343788 | 2385 | o->op_type == OP_LEAVETRY) |
fc36a67e | 2386 | { |
5dc0d613 | 2387 | *ops++ = cUNOPo->op_first; |
fc36a67e | 2388 | if (ops >= oplimit) |
cea2e8a9 | 2389 | Perl_croak(aTHX_ too_deep); |
fc36a67e | 2390 | } |
c4aa4e48 | 2391 | *ops = 0; |
11343788 | 2392 | if (o->op_flags & OPf_KIDS) { |
aec46f14 | 2393 | OP *kid; |
a0d0e21e | 2394 | /* First try all the kids at this level, since that's likeliest. */ |
11343788 | 2395 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
c4aa4e48 | 2396 | if ((kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) && |
4b65a919 | 2397 | CopLABEL(kCOP) && strEQ(CopLABEL(kCOP), label)) |
a0d0e21e LW |
2398 | return kid; |
2399 | } | |
11343788 | 2400 | for (kid = cUNOPo->op_first; kid; kid = kid->op_sibling) { |
3280af22 | 2401 | if (kid == PL_lastgotoprobe) |
a0d0e21e | 2402 | continue; |
ed8d0fe2 SM |
2403 | if (kid->op_type == OP_NEXTSTATE || kid->op_type == OP_DBSTATE) { |
2404 | if (ops == opstack) | |
2405 | *ops++ = kid; | |
2406 | else if (ops[-1]->op_type == OP_NEXTSTATE || | |
2407 | ops[-1]->op_type == OP_DBSTATE) | |
2408 | ops[-1] = kid; | |
2409 | else | |
2410 | *ops++ = kid; | |
2411 | } | |
155aba94 | 2412 | if ((o = dofindlabel(kid, label, ops, oplimit))) |
11343788 | 2413 | return o; |
a0d0e21e LW |
2414 | } |
2415 | } | |
c4aa4e48 | 2416 | *ops = 0; |
a0d0e21e LW |
2417 | return 0; |
2418 | } | |
2419 | ||
a0d0e21e LW |
2420 | PP(pp_goto) |
2421 | { | |
27da23d5 | 2422 | dVAR; dSP; |
cbbf8932 | 2423 | OP *retop = NULL; |
a0d0e21e | 2424 | I32 ix; |
c09156bb | 2425 | register PERL_CONTEXT *cx; |
fc36a67e | 2426 | #define GOTO_DEPTH 64 |
2427 | OP *enterops[GOTO_DEPTH]; | |
cbbf8932 | 2428 | const char *label = NULL; |
bfed75c6 AL |
2429 | const bool do_dump = (PL_op->op_type == OP_DUMP); |
2430 | static const char must_have_label[] = "goto must have label"; | |
a0d0e21e | 2431 | |
533c011a | 2432 | if (PL_op->op_flags & OPf_STACKED) { |
9d4ba2ae | 2433 | SV * const sv = POPs; |
a0d0e21e LW |
2434 | |
2435 | /* This egregious kludge implements goto &subroutine */ | |
2436 | if (SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVCV) { | |
2437 | I32 cxix; | |
c09156bb | 2438 | register PERL_CONTEXT *cx; |
ea726b52 | 2439 | CV *cv = MUTABLE_CV(SvRV(sv)); |
a0d0e21e LW |
2440 | SV** mark; |
2441 | I32 items = 0; | |
2442 | I32 oldsave; | |
b1464ded | 2443 | bool reified = 0; |
a0d0e21e | 2444 | |
e8f7dd13 | 2445 | retry: |
4aa0a1f7 | 2446 | if (!CvROOT(cv) && !CvXSUB(cv)) { |
7fc63493 | 2447 | const GV * const gv = CvGV(cv); |
e8f7dd13 | 2448 | if (gv) { |
7fc63493 | 2449 | GV *autogv; |
e8f7dd13 GS |
2450 | SV *tmpstr; |
2451 | /* autoloaded stub? */ | |
2452 | if (cv != GvCV(gv) && (cv = GvCV(gv))) | |
2453 | goto retry; | |
2454 | autogv = gv_autoload4(GvSTASH(gv), GvNAME(gv), | |
2455 | GvNAMELEN(gv), FALSE); | |
2456 | if (autogv && (cv = GvCV(autogv))) | |
2457 | goto retry; | |
2458 | tmpstr = sv_newmortal(); | |
c445ea15 | 2459 | gv_efullname3(tmpstr, gv, NULL); |
be2597df | 2460 | DIE(aTHX_ "Goto undefined subroutine &%"SVf"", SVfARG(tmpstr)); |
4aa0a1f7 | 2461 | } |
cea2e8a9 | 2462 | DIE(aTHX_ "Goto undefined subroutine"); |
4aa0a1f7 AD |
2463 | } |
2464 | ||
a0d0e21e | 2465 | /* First do some returnish stuff. */ |
b37c2d43 | 2466 | SvREFCNT_inc_simple_void(cv); /* avoid premature free during unwind */ |
71fc2216 | 2467 | FREETMPS; |
a0d0e21e LW |
2468 | cxix = dopoptosub(cxstack_ix); |
2469 | if (cxix < 0) | |
cea2e8a9 | 2470 | DIE(aTHX_ "Can't goto subroutine outside a subroutine"); |
a0d0e21e LW |
2471 | if (cxix < cxstack_ix) |
2472 | dounwind(cxix); | |
2473 | TOPBLOCK(cx); | |
2d43a17f | 2474 | SPAGAIN; |
564abe23 | 2475 | /* ban goto in eval: see <20050521150056.GC20213@iabyn.com> */ |
2d43a17f | 2476 | if (CxTYPE(cx) == CXt_EVAL) { |
c74ace89 DM |
2477 | if (CxREALEVAL(cx)) |
2478 | DIE(aTHX_ "Can't goto subroutine from an eval-string"); | |
2479 | else | |
2480 | DIE(aTHX_ "Can't goto subroutine from an eval-block"); | |
2d43a17f | 2481 | } |
9850bf21 RH |
2482 | else if (CxMULTICALL(cx)) |
2483 | DIE(aTHX_ "Can't goto subroutine from a sort sub (or similar callback)"); | |
bafb2adc | 2484 | if (CxTYPE(cx) == CXt_SUB && CxHASARGS(cx)) { |
d8b46c1b | 2485 | /* put @_ back onto stack */ |
a0d0e21e | 2486 | AV* av = cx->blk_sub.argarray; |
bfed75c6 | 2487 | |
93965878 | 2488 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2489 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2490 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
3280af22 NIS |
2491 | SvREFCNT_dec(GvAV(PL_defgv)); |
2492 | GvAV(PL_defgv) = cx->blk_sub.savearray; | |
b1464ded | 2493 | CLEAR_ARGARRAY(av); |
d8b46c1b | 2494 | /* abandon @_ if it got reified */ |
62b1ebc2 | 2495 | if (AvREAL(av)) { |
b1464ded DM |
2496 | reified = 1; |
2497 | SvREFCNT_dec(av); | |
d8b46c1b GS |
2498 | av = newAV(); |
2499 | av_extend(av, items-1); | |
11ca45c0 | 2500 | AvREIFY_only(av); |
ad64d0ec | 2501 | PAD_SVl(0) = MUTABLE_SV(cx->blk_sub.argarray = av); |
62b1ebc2 | 2502 | } |
a0d0e21e | 2503 | } |
aed2304a | 2504 | else if (CvISXSUB(cv)) { /* put GvAV(defgv) back onto stack */ |
890ce7af | 2505 | AV* const av = GvAV(PL_defgv); |
1fa4e549 | 2506 | items = AvFILLp(av) + 1; |
a45cdc79 DM |
2507 | EXTEND(SP, items+1); /* @_ could have been extended. */ |
2508 | Copy(AvARRAY(av), SP + 1, items, SV*); | |
1fa4e549 | 2509 | } |
a45cdc79 DM |
2510 | mark = SP; |
2511 | SP += items; | |
6b35e009 | 2512 | if (CxTYPE(cx) == CXt_SUB && |
b150fb22 | 2513 | !(CvDEPTH(cx->blk_sub.cv) = cx->blk_sub.olddepth)) |
a0d0e21e | 2514 | SvREFCNT_dec(cx->blk_sub.cv); |
3280af22 | 2515 | oldsave = PL_scopestack[PL_scopestack_ix - 1]; |
a0d0e21e LW |
2516 | LEAVE_SCOPE(oldsave); |
2517 | ||
2518 | /* Now do some callish stuff. */ | |
2519 | SAVETMPS; | |
5023d17a | 2520 | SAVEFREESV(cv); /* later, undo the 'avoid premature free' hack */ |
aed2304a | 2521 | if (CvISXSUB(cv)) { |
b37c2d43 | 2522 | OP* const retop = cx->blk_sub.retop; |
f73ef291 NC |
2523 | SV **newsp; |
2524 | I32 gimme; | |
b1464ded DM |
2525 | if (reified) { |
2526 | I32 index; | |
2527 | for (index=0; index<items; index++) | |
2528 | sv_2mortal(SP[-index]); | |
2529 | } | |
1fa4e549 | 2530 | |
b37c2d43 AL |
2531 | /* XS subs don't have a CxSUB, so pop it */ |
2532 | POPBLOCK(cx, PL_curpm); | |
2533 | /* Push a mark for the start of arglist */ | |
2534 | PUSHMARK(mark); | |
2535 | PUTBACK; | |
2536 | (void)(*CvXSUB(cv))(aTHX_ cv); | |
a0d0e21e | 2537 | LEAVE; |
5eff7df7 | 2538 | return retop; |
a0d0e21e LW |
2539 | } |
2540 | else { | |
b37c2d43 | 2541 | AV* const padlist = CvPADLIST(cv); |
6b35e009 | 2542 | if (CxTYPE(cx) == CXt_EVAL) { |
85a64632 | 2543 | PL_in_eval = CxOLD_IN_EVAL(cx); |
3280af22 | 2544 | PL_eval_root = cx->blk_eval.old_eval_root; |
b150fb22 | 2545 | cx->cx_type = CXt_SUB; |
b150fb22 | 2546 | } |
a0d0e21e | 2547 | cx->blk_sub.cv = cv; |
1a5b3db4 | 2548 | cx->blk_sub.olddepth = CvDEPTH(cv); |
dd2155a4 | 2549 | |
a0d0e21e LW |
2550 | CvDEPTH(cv)++; |
2551 | if (CvDEPTH(cv) < 2) | |
74c765eb | 2552 | SvREFCNT_inc_simple_void_NN(cv); |
dd2155a4 | 2553 | else { |
2b9dff67 | 2554 | if (CvDEPTH(cv) == PERL_SUB_DEPTH_WARN && ckWARN(WARN_RECURSION)) |
44a8e56a | 2555 | sub_crush_depth(cv); |
26019298 | 2556 | pad_push(padlist, CvDEPTH(cv)); |
a0d0e21e | 2557 | } |
fd617465 DM |
2558 | SAVECOMPPAD(); |
2559 | PAD_SET_CUR_NOSAVE(padlist, CvDEPTH(cv)); | |
bafb2adc | 2560 | if (CxHASARGS(cx)) |
6d4ff0d2 | 2561 | { |
502c6561 | 2562 | AV *const av = MUTABLE_AV(PAD_SVl(0)); |
a0d0e21e | 2563 | |
3280af22 | 2564 | cx->blk_sub.savearray = GvAV(PL_defgv); |
502c6561 | 2565 | GvAV(PL_defgv) = MUTABLE_AV(SvREFCNT_inc_simple(av)); |
dd2155a4 | 2566 | CX_CURPAD_SAVE(cx->blk_sub); |
6d4ff0d2 | 2567 | cx->blk_sub.argarray = av; |
a0d0e21e LW |
2568 | |
2569 | if (items >= AvMAX(av) + 1) { | |
b37c2d43 | 2570 | SV **ary = AvALLOC(av); |
a0d0e21e LW |
2571 | if (AvARRAY(av) != ary) { |
2572 | AvMAX(av) += AvARRAY(av) - AvALLOC(av); | |
9c6bc640 | 2573 | AvARRAY(av) = ary; |
a0d0e21e LW |
2574 | } |
2575 | if (items >= AvMAX(av) + 1) { | |
2576 | AvMAX(av) = items - 1; | |
2577 | Renew(ary,items+1,SV*); | |
2578 | AvALLOC(av) = ary; | |
9c6bc640 | 2579 | AvARRAY(av) = ary; |
a0d0e21e LW |
2580 | } |
2581 | } | |
a45cdc79 | 2582 | ++mark; |
a0d0e21e | 2583 | Copy(mark,AvARRAY(av),items,SV*); |
93965878 | 2584 | AvFILLp(av) = items - 1; |
d8b46c1b | 2585 | assert(!AvREAL(av)); |
b1464ded DM |
2586 | if (reified) { |
2587 | /* transfer 'ownership' of refcnts to new @_ */ | |
2588 | AvREAL_on(av); | |
2589 | AvREIFY_off(av); | |
2590 | } | |
a0d0e21e LW |
2591 | while (items--) { |
2592 | if (*mark) | |
2593 | SvTEMP_off(*mark); | |
2594 | mark++; | |
2595 | } | |
2596 | } | |
491527d0 | 2597 | if (PERLDB_SUB) { /* Checking curstash breaks DProf. */ |
005a8a35 | 2598 | Perl_get_db_sub(aTHX_ NULL, cv); |
b37c2d43 | 2599 | if (PERLDB_GOTO) { |
b96d8cd9 | 2600 | CV * const gotocv = get_cvs("DB::goto", 0); |
b37c2d43 AL |
2601 | if (gotocv) { |
2602 | PUSHMARK( PL_stack_sp ); | |
ad64d0ec | 2603 | call_sv(MUTABLE_SV(gotocv), G_SCALAR | G_NODEBUG); |
b37c2d43 AL |
2604 | PL_stack_sp--; |
2605 | } | |
491527d0 | 2606 | } |
1ce6579f | 2607 | } |
a0d0e21e LW |
2608 | RETURNOP(CvSTART(cv)); |
2609 | } | |
2610 | } | |
1614b0e3 | 2611 | else { |
0510663f | 2612 | label = SvPV_nolen_const(sv); |
1614b0e3 | 2613 | if (!(do_dump || *label)) |
cea2e8a9 | 2614 | DIE(aTHX_ must_have_label); |
1614b0e3 | 2615 | } |
a0d0e21e | 2616 | } |
533c011a | 2617 | else if (PL_op->op_flags & OPf_SPECIAL) { |
a0d0e21e | 2618 | if (! do_dump) |
cea2e8a9 | 2619 | DIE(aTHX_ must_have_label); |
a0d0e21e LW |
2620 | } |
2621 | else | |
2622 | label = cPVOP->op_pv; | |
2623 | ||
2624 | if (label && *label) { | |
cbbf8932 | 2625 | OP *gotoprobe = NULL; |
3b2447bc | 2626 | bool leaving_eval = FALSE; |
33d34e4c | 2627 | bool in_block = FALSE; |
cbbf8932 | 2628 | PERL_CONTEXT *last_eval_cx = NULL; |
a0d0e21e LW |
2629 | |
2630 | /* find label */ | |
2631 | ||
d4c19fe8 | 2632 | PL_lastgotoprobe = NULL; |
a0d0e21e LW |
2633 | *enterops = 0; |
2634 | for (ix = cxstack_ix; ix >= 0; ix--) { | |
2635 | cx = &cxstack[ix]; | |
6b35e009 | 2636 | switch (CxTYPE(cx)) { |
a0d0e21e | 2637 | case CXt_EVAL: |
3b2447bc | 2638 | leaving_eval = TRUE; |
971ecbe6 | 2639 | if (!CxTRYBLOCK(cx)) { |
a4f3a277 RH |
2640 | gotoprobe = (last_eval_cx ? |
2641 | last_eval_cx->blk_eval.old_eval_root : | |
2642 | PL_eval_root); | |
2643 | last_eval_cx = cx; | |
9c5794fe RH |
2644 | break; |
2645 | } | |
2646 | /* else fall through */ | |
c6fdafd0 | 2647 | case CXt_LOOP_LAZYIV: |
d01136d6 | 2648 | case CXt_LOOP_LAZYSV: |
3b719c58 NC |
2649 | case CXt_LOOP_FOR: |
2650 | case CXt_LOOP_PLAIN: | |
bb5aedc1 VP |
2651 | case CXt_GIVEN: |
2652 | case CXt_WHEN: | |
a0d0e21e LW |
2653 | gotoprobe = cx->blk_oldcop->op_sibling; |
2654 | break; | |
2655 | case CXt_SUBST: | |
2656 | continue; | |
2657 | case CXt_BLOCK: | |
33d34e4c | 2658 | if (ix) { |
a0d0e21e | 2659 | gotoprobe = cx->blk_oldcop->op_sibling; |
33d34e4c AE |
2660 | in_block = TRUE; |
2661 | } else | |
3280af22 | 2662 | gotoprobe = PL_main_root; |
a0d0e21e | 2663 | break; |
b3933176 | 2664 | case CXt_SUB: |
9850bf21 | 2665 | if (CvDEPTH(cx->blk_sub.cv) && !CxMULTICALL(cx)) { |
b3933176 CS |
2666 | gotoprobe = CvROOT(cx->blk_sub.cv); |
2667 | break; | |
2668 | } | |
2669 | /* FALL THROUGH */ | |
7766f137 | 2670 | case CXt_FORMAT: |
0a753a76 | 2671 | case CXt_NULL: |
a651a37d | 2672 | DIE(aTHX_ "Can't \"goto\" out of a pseudo block"); |
a0d0e21e LW |
2673 | default: |
2674 | if (ix) | |
cea2e8a9 | 2675 | DIE(aTHX_ "panic: goto"); |
3280af22 | 2676 | gotoprobe = PL_main_root; |
a0d0e21e LW |
2677 | break; |
2678 | } | |
2b597662 GS |
2679 | if (gotoprobe) { |
2680 | retop = dofindlabel(gotoprobe, label, | |
2681 | enterops, enterops + GOTO_DEPTH); | |
2682 | if (retop) | |
2683 | break; | |
2684 | } | |
3280af22 | 2685 | PL_lastgotoprobe = gotoprobe; |
a0d0e21e LW |
2686 | } |
2687 | if (!retop) | |
cea2e8a9 | 2688 | DIE(aTHX_ "Can't find label %s", label); |
a0d0e21e | 2689 | |
3b2447bc RH |
2690 | /* if we're leaving an eval, check before we pop any frames |
2691 | that we're not going to punt, otherwise the error | |
2692 | won't be caught */ | |
2693 | ||
2694 | if (leaving_eval && *enterops && enterops[1]) { | |
2695 | I32 i; | |
2696 | for (i = 1; enterops[i]; i++) | |
2697 | if (enterops[i]->op_type == OP_ENTERITER) | |
2698 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); | |
2699 | } | |
2700 | ||
a0d0e21e LW |
2701 | /* pop unwanted frames */ |
2702 | ||
2703 | if (ix < cxstack_ix) { | |
2704 | I32 oldsave; | |
2705 | ||
2706 | if (ix < 0) | |
2707 | ix = 0; | |
2708 | dounwind(ix); | |
2709 | TOPBLOCK(cx); | |
3280af22 | 2710 | oldsave = PL_scopestack[PL_scopestack_ix]; |
a0d0e21e LW |
2711 | LEAVE_SCOPE(oldsave); |
2712 | } | |
2713 | ||
2714 | /* push wanted frames */ | |
2715 | ||
748a9306 | 2716 | if (*enterops && enterops[1]) { |
0bd48802 | 2717 | OP * const oldop = PL_op; |
33d34e4c AE |
2718 | ix = enterops[1]->op_type == OP_ENTER && in_block ? 2 : 1; |
2719 | for (; enterops[ix]; ix++) { | |
533c011a | 2720 | PL_op = enterops[ix]; |
84902520 TB |
2721 | /* Eventually we may want to stack the needed arguments |
2722 | * for each op. For now, we punt on the hard ones. */ | |
533c011a | 2723 | if (PL_op->op_type == OP_ENTERITER) |
894356b3 | 2724 | DIE(aTHX_ "Can't \"goto\" into the middle of a foreach loop"); |
fc0dc3b3 | 2725 | CALL_FPTR(PL_op->op_ppaddr)(aTHX); |
a0d0e21e | 2726 | } |
533c011a | 2727 | PL_op = oldop; |
a0d0e21e LW |
2728 | } |
2729 | } | |
2730 | ||
2731 | if (do_dump) { | |
a5f75d66 | 2732 | #ifdef VMS |
6b88bc9c | 2733 | if (!retop) retop = PL_main_start; |
a5f75d66 | 2734 | #endif |
3280af22 NIS |
2735 | PL_restartop = retop; |
2736 | PL_do_undump = TRUE; | |
a0d0e21e LW |
2737 | |
2738 | my_unexec(); | |
2739 | ||
3280af22 NIS |
2740 | PL_restartop = 0; /* hmm, must be GNU unexec().. */ |
2741 | PL_do_undump = FALSE; | |
a0d0e21e LW |
2742 | } |
2743 | ||
2744 | RETURNOP(retop); | |
2745 | } | |
2746 | ||
2747 | PP(pp_exit) | |
2748 | { | |
97aff369 | 2749 | dVAR; |
39644a26 | 2750 | dSP; |
a0d0e21e LW |
2751 | I32 anum; |
2752 | ||
2753 | if (MAXARG < 1) | |
2754 | anum = 0; | |
ff0cee69 | 2755 | else { |
a0d0e21e | 2756 | anum = SvIVx(POPs); |
d98f61e7 GS |
2757 | #ifdef VMS |
2758 | if (anum == 1 && (PL_op->op_private & OPpEXIT_VMSISH)) | |
ff0cee69 | 2759 | anum = 0; |
96e176bf | 2760 | VMSISH_HUSHED = VMSISH_HUSHED || (PL_op->op_private & OPpHUSH_VMSISH); |
ff0cee69 | 2761 | #endif |
2762 | } | |
cc3604b1 | 2763 | PL_exit_flags |= PERL_EXIT_EXPECTED; |
81d86705 NC |
2764 | #ifdef PERL_MAD |
2765 | /* KLUDGE: disable exit 0 in BEGIN blocks when we're just compiling */ | |
2766 | if (anum || !(PL_minus_c && PL_madskills)) | |
2767 | my_exit(anum); | |
2768 | #else | |
a0d0e21e | 2769 | my_exit(anum); |
81d86705 | 2770 | #endif |
3280af22 | 2771 | PUSHs(&PL_sv_undef); |
a0d0e21e LW |
2772 | RETURN; |
2773 | } | |
2774 | ||
a0d0e21e LW |
2775 | /* Eval. */ |
2776 | ||
0824fdcb | 2777 | STATIC void |
cea2e8a9 | 2778 | S_save_lines(pTHX_ AV *array, SV *sv) |
a0d0e21e | 2779 | { |
504618e9 | 2780 | const char *s = SvPVX_const(sv); |
890ce7af | 2781 | const char * const send = SvPVX_const(sv) + SvCUR(sv); |
504618e9 | 2782 | I32 line = 1; |
a0d0e21e | 2783 | |
7918f24d NC |
2784 | PERL_ARGS_ASSERT_SAVE_LINES; |
2785 | ||
a0d0e21e | 2786 | while (s && s < send) { |
f54cb97a | 2787 | const char *t; |
b9f83d2f | 2788 | SV * const tmpstr = newSV_type(SVt_PVMG); |
a0d0e21e | 2789 | |
1d963ff3 | 2790 | t = (const char *)memchr(s, '\n', send - s); |
a0d0e21e LW |
2791 | if (t) |
2792 | t++; | |
2793 | else | |
2794 | t = send; | |
2795 | ||
2796 | sv_setpvn(tmpstr, s, t - s); | |
2797 | av_store(array, line++, tmpstr); | |
2798 | s = t; | |
2799 | } | |
2800 | } | |
2801 | ||
0824fdcb | 2802 | STATIC OP * |
cea2e8a9 | 2803 | S_docatch(pTHX_ OP *o) |
1e422769 | 2804 | { |
97aff369 | 2805 | dVAR; |
6224f72b | 2806 | int ret; |
06b5626a | 2807 | OP * const oldop = PL_op; |
db36c5a1 | 2808 | dJMPENV; |
1e422769 | 2809 | |
1e422769 | 2810 | #ifdef DEBUGGING |
54310121 | 2811 | assert(CATCH_GET == TRUE); |
1e422769 | 2812 | #endif |
312caa8e | 2813 | PL_op = o; |
8bffa5f8 | 2814 | |
14dd3ad8 | 2815 | JMPENV_PUSH(ret); |
6224f72b | 2816 | switch (ret) { |
312caa8e | 2817 | case 0: |
abd70938 DM |
2818 | assert(cxstack_ix >= 0); |
2819 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); | |
2820 | cxstack[cxstack_ix].blk_eval.cur_top_env = PL_top_env; | |
14dd3ad8 | 2821 | redo_body: |
85aaa934 | 2822 | CALLRUNOPS(aTHX); |
312caa8e CS |
2823 | break; |
2824 | case 3: | |
8bffa5f8 | 2825 | /* die caught by an inner eval - continue inner loop */ |
abd70938 DM |
2826 | |
2827 | /* NB XXX we rely on the old popped CxEVAL still being at the top | |
2828 | * of the stack; the way die_where() currently works, this | |
2829 | * assumption is valid. In theory The cur_top_env value should be | |
2830 | * returned in another global, the way retop (aka PL_restartop) | |
2831 | * is. */ | |
2832 | assert(CxTYPE(&cxstack[cxstack_ix+1]) == CXt_EVAL); | |
2833 | ||
2834 | if (PL_restartop | |
2835 | && cxstack[cxstack_ix+1].blk_eval.cur_top_env == PL_top_env) | |
2836 | { | |
312caa8e CS |
2837 | PL_op = PL_restartop; |
2838 | PL_restartop = 0; | |
2839 | goto redo_body; | |
2840 | } | |
2841 | /* FALL THROUGH */ | |
2842 | default: | |
14dd3ad8 | 2843 | JMPENV_POP; |
533c011a | 2844 | PL_op = oldop; |
6224f72b | 2845 | JMPENV_JUMP(ret); |
1e422769 | 2846 | /* NOTREACHED */ |
1e422769 | 2847 | } |
14dd3ad8 | 2848 | JMPENV_POP; |
533c011a | 2849 | PL_op = oldop; |
5f66b61c | 2850 | return NULL; |
1e422769 | 2851 | } |
2852 | ||
c277df42 | 2853 | OP * |
bfed75c6 | 2854 | Perl_sv_compile_2op(pTHX_ SV *sv, OP** startop, const char *code, PAD** padp) |
c277df42 IZ |
2855 | /* sv Text to convert to OP tree. */ |
2856 | /* startop op_free() this to undo. */ | |
2857 | /* code Short string id of the caller. */ | |
2858 | { | |
f7997f86 | 2859 | /* FIXME - how much of this code is common with pp_entereval? */ |
27da23d5 | 2860 | dVAR; dSP; /* Make POPBLOCK work. */ |
c277df42 IZ |
2861 | PERL_CONTEXT *cx; |
2862 | SV **newsp; | |
b094c71d | 2863 | I32 gimme = G_VOID; |
c277df42 IZ |
2864 | I32 optype; |
2865 | OP dummy; | |
83ee9e09 GS |
2866 | char tbuf[TYPE_DIGITS(long) + 12 + 10]; |
2867 | char *tmpbuf = tbuf; | |
c277df42 | 2868 | char *safestr; |
a3985cdc | 2869 | int runtime; |
601f1833 | 2870 | CV* runcv = NULL; /* initialise to avoid compiler warnings */ |
f7997f86 | 2871 | STRLEN len; |
c277df42 | 2872 | |
7918f24d NC |
2873 | PERL_ARGS_ASSERT_SV_COMPILE_2OP; |
2874 | ||
c277df42 | 2875 | ENTER; |
5486870f | 2876 | lex_start(sv, NULL, FALSE); |
c277df42 IZ |
2877 | SAVETMPS; |
2878 | /* switch to eval mode */ | |
2879 | ||
923e4eb5 | 2880 | if (IN_PERL_COMPILETIME) { |
f4dd75d9 | 2881 | SAVECOPSTASH_FREE(&PL_compiling); |
11faa288 | 2882 | CopSTASH_set(&PL_compiling, PL_curstash); |
cbce877f | 2883 | } |
83ee9e09 | 2884 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
9d4ba2ae | 2885 | SV * const sv = sv_newmortal(); |
83ee9e09 GS |
2886 | Perl_sv_setpvf(aTHX_ sv, "_<(%.10seval %lu)[%s:%"IVdf"]", |
2887 | code, (unsigned long)++PL_evalseq, | |
2888 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
2889 | tmpbuf = SvPVX(sv); | |
fc009855 | 2890 | len = SvCUR(sv); |
83ee9e09 GS |
2891 | } |
2892 | else | |
d9fad198 JH |
2893 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(%.10s_eval %lu)", code, |
2894 | (unsigned long)++PL_evalseq); | |
f4dd75d9 | 2895 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 2896 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 2897 | SAVECOPLINE(&PL_compiling); |
57843af0 | 2898 | CopLINE_set(&PL_compiling, 1); |
c277df42 IZ |
2899 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
2900 | deleting the eval's FILEGV from the stash before gv_check() runs | |
2901 | (i.e. before run-time proper). To work around the coredump that | |
2902 | ensues, we always turn GvMULTI_on for any globals that were | |
2903 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
f7997f86 NC |
2904 | safestr = savepvn(tmpbuf, len); |
2905 | SAVEDELETE(PL_defstash, safestr, len); | |
b3ac6de7 | 2906 | SAVEHINTS(); |
d1ca3daa | 2907 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2908 | PL_opsave = op; |
d1ca3daa | 2909 | #else |
7766f137 | 2910 | SAVEVPTR(PL_op); |
d1ca3daa | 2911 | #endif |
c277df42 | 2912 | |
a3985cdc | 2913 | /* we get here either during compilation, or via pp_regcomp at runtime */ |
923e4eb5 | 2914 | runtime = IN_PERL_RUNTIME; |
a3985cdc | 2915 | if (runtime) |
d819b83a | 2916 | runcv = find_runcv(NULL); |
a3985cdc | 2917 | |
533c011a | 2918 | PL_op = &dummy; |
13b51b79 | 2919 | PL_op->op_type = OP_ENTEREVAL; |
533c011a | 2920 | PL_op->op_flags = 0; /* Avoid uninit warning. */ |
923e4eb5 | 2921 | PUSHBLOCK(cx, CXt_EVAL|(IN_PERL_COMPILETIME ? 0 : CXp_REAL), SP); |
6b75f042 | 2922 | PUSHEVAL(cx, 0); |
a3985cdc DM |
2923 | |
2924 | if (runtime) | |
410be5db | 2925 | (void) doeval(G_SCALAR, startop, runcv, PL_curcop->cop_seq); |
a3985cdc | 2926 | else |
410be5db | 2927 | (void) doeval(G_SCALAR, startop, PL_compcv, PL_cop_seqmax); |
13b51b79 | 2928 | POPBLOCK(cx,PL_curpm); |
e84b9f1f | 2929 | POPEVAL(cx); |
c277df42 IZ |
2930 | |
2931 | (*startop)->op_type = OP_NULL; | |
22c35a8c | 2932 | (*startop)->op_ppaddr = PL_ppaddr[OP_NULL]; |
c277df42 | 2933 | lex_end(); |
f3548bdc | 2934 | /* XXX DAPM do this properly one year */ |
502c6561 | 2935 | *padp = MUTABLE_AV(SvREFCNT_inc_simple(PL_comppad)); |
c277df42 | 2936 | LEAVE; |
923e4eb5 | 2937 | if (IN_PERL_COMPILETIME) |
623e6609 | 2938 | CopHINTS_set(&PL_compiling, PL_hints); |
d1ca3daa | 2939 | #ifdef OP_IN_REGISTER |
6b88bc9c | 2940 | op = PL_opsave; |
d1ca3daa | 2941 | #endif |
9d4ba2ae AL |
2942 | PERL_UNUSED_VAR(newsp); |
2943 | PERL_UNUSED_VAR(optype); | |
2944 | ||
410be5db | 2945 | return PL_eval_start; |
c277df42 IZ |
2946 | } |
2947 | ||
a3985cdc DM |
2948 | |
2949 | /* | |
2950 | =for apidoc find_runcv | |
2951 | ||
2952 | Locate the CV corresponding to the currently executing sub or eval. | |
d819b83a DM |
2953 | If db_seqp is non_null, skip CVs that are in the DB package and populate |
2954 | *db_seqp with the cop sequence number at the point that the DB:: code was | |
2955 | entered. (allows debuggers to eval in the scope of the breakpoint rather | |
cf525c36 | 2956 | than in the scope of the debugger itself). |
a3985cdc DM |
2957 | |
2958 | =cut | |
2959 | */ | |
2960 | ||
2961 | CV* | |
d819b83a | 2962 | Perl_find_runcv(pTHX_ U32 *db_seqp) |
a3985cdc | 2963 | { |
97aff369 | 2964 | dVAR; |
a3985cdc | 2965 | PERL_SI *si; |
a3985cdc | 2966 | |
d819b83a DM |
2967 | if (db_seqp) |
2968 | *db_seqp = PL_curcop->cop_seq; | |
a3985cdc | 2969 | for (si = PL_curstackinfo; si; si = si->si_prev) { |
06b5626a | 2970 | I32 ix; |
a3985cdc | 2971 | for (ix = si->si_cxix; ix >= 0; ix--) { |
06b5626a | 2972 | const PERL_CONTEXT *cx = &(si->si_cxstack[ix]); |
d819b83a | 2973 | if (CxTYPE(cx) == CXt_SUB || CxTYPE(cx) == CXt_FORMAT) { |
1b6737cc | 2974 | CV * const cv = cx->blk_sub.cv; |
d819b83a DM |
2975 | /* skip DB:: code */ |
2976 | if (db_seqp && PL_debstash && CvSTASH(cv) == PL_debstash) { | |
2977 | *db_seqp = cx->blk_oldcop->cop_seq; | |
2978 | continue; | |
2979 | } | |
2980 | return cv; | |
2981 | } | |
a3985cdc DM |
2982 | else if (CxTYPE(cx) == CXt_EVAL && !CxTRYBLOCK(cx)) |
2983 | return PL_compcv; | |
2984 | } | |
2985 | } | |
2986 | return PL_main_cv; | |
2987 | } | |
2988 | ||
2989 | ||
2990 | /* Compile a require/do, an eval '', or a /(?{...})/. | |
2991 | * In the last case, startop is non-null, and contains the address of | |
2992 | * a pointer that should be set to the just-compiled code. | |
2993 | * outside is the lexically enclosing CV (if any) that invoked us. | |
410be5db DM |
2994 | * Returns a bool indicating whether the compile was successful; if so, |
2995 | * PL_eval_start contains the first op of the compiled ocde; otherwise, | |
2996 | * pushes undef (also croaks if startop != NULL). | |
a3985cdc DM |
2997 | */ |
2998 | ||
410be5db | 2999 | STATIC bool |
a3985cdc | 3000 | S_doeval(pTHX_ int gimme, OP** startop, CV* outside, U32 seq) |
a0d0e21e | 3001 | { |
27da23d5 | 3002 | dVAR; dSP; |
46c461b5 | 3003 | OP * const saveop = PL_op; |
a0d0e21e | 3004 | |
6dc8a9e4 IZ |
3005 | PL_in_eval = ((saveop && saveop->op_type == OP_REQUIRE) |
3006 | ? (EVAL_INREQUIRE | (PL_in_eval & EVAL_INEVAL)) | |
3007 | : EVAL_INEVAL); | |
a0d0e21e | 3008 | |
1ce6579f | 3009 | PUSHMARK(SP); |
3010 | ||
3280af22 | 3011 | SAVESPTR(PL_compcv); |
ea726b52 | 3012 | PL_compcv = MUTABLE_CV(newSV_type(SVt_PVCV)); |
1aff0e91 | 3013 | CvEVAL_on(PL_compcv); |
2090ab20 JH |
3014 | assert(CxTYPE(&cxstack[cxstack_ix]) == CXt_EVAL); |
3015 | cxstack[cxstack_ix].blk_eval.cv = PL_compcv; | |
3016 | ||
a3985cdc | 3017 | CvOUTSIDE_SEQ(PL_compcv) = seq; |
ea726b52 | 3018 | CvOUTSIDE(PL_compcv) = MUTABLE_CV(SvREFCNT_inc_simple(outside)); |
a3985cdc | 3019 | |
dd2155a4 | 3020 | /* set up a scratch pad */ |
a0d0e21e | 3021 | |
dd2155a4 | 3022 | CvPADLIST(PL_compcv) = pad_new(padnew_SAVE); |
cecbe010 | 3023 | PL_op = NULL; /* avoid PL_op and PL_curpad referring to different CVs */ |
2c05e328 | 3024 | |
07055b4c | 3025 | |
81d86705 NC |
3026 | if (!PL_madskills) |
3027 | SAVEMORTALIZESV(PL_compcv); /* must remain until end of current statement */ | |
748a9306 | 3028 | |
a0d0e21e LW |
3029 | /* make sure we compile in the right package */ |
3030 | ||
ed094faf | 3031 | if (CopSTASH_ne(PL_curcop, PL_curstash)) { |
3280af22 | 3032 | SAVESPTR(PL_curstash); |
ed094faf | 3033 | PL_curstash = CopSTASH(PL_curcop); |
a0d0e21e | 3034 | } |
3c10abe3 | 3035 | /* XXX:ajgo do we really need to alloc an AV for begin/checkunit */ |
3280af22 NIS |
3036 | SAVESPTR(PL_beginav); |
3037 | PL_beginav = newAV(); | |
3038 | SAVEFREESV(PL_beginav); | |
3c10abe3 AG |
3039 | SAVESPTR(PL_unitcheckav); |
3040 | PL_unitcheckav = newAV(); | |
3041 | SAVEFREESV(PL_unitcheckav); | |
a0d0e21e | 3042 | |
81d86705 | 3043 | #ifdef PERL_MAD |
9da243ce | 3044 | SAVEBOOL(PL_madskills); |
81d86705 NC |
3045 | PL_madskills = 0; |
3046 | #endif | |
3047 | ||
a0d0e21e LW |
3048 | /* try to compile it */ |
3049 | ||
5f66b61c | 3050 | PL_eval_root = NULL; |
3280af22 | 3051 | PL_curcop = &PL_compiling; |
fc15ae8f | 3052 | CopARYBASE_set(PL_curcop, 0); |
5f66b61c | 3053 | if (saveop && (saveop->op_type != OP_REQUIRE) && (saveop->op_flags & OPf_SPECIAL)) |
faef0170 | 3054 | PL_in_eval |= EVAL_KEEPERR; |
ab69dbc2 RGS |
3055 | else |
3056 | CLEAR_ERRSV(); | |
13765c85 | 3057 | if (yyparse() || PL_parser->error_count || !PL_eval_root) { |
0c58d367 | 3058 | SV **newsp; /* Used by POPBLOCK. */ |
9d4ba2ae | 3059 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
c277df42 | 3060 | I32 optype = 0; /* Might be reset by POPEVAL. */ |
9d4ba2ae | 3061 | const char *msg; |
bfed75c6 | 3062 | |
533c011a | 3063 | PL_op = saveop; |
3280af22 NIS |
3064 | if (PL_eval_root) { |
3065 | op_free(PL_eval_root); | |
5f66b61c | 3066 | PL_eval_root = NULL; |
a0d0e21e | 3067 | } |
3280af22 | 3068 | SP = PL_stack_base + POPMARK; /* pop original mark */ |
c277df42 | 3069 | if (!startop) { |
3280af22 | 3070 | POPBLOCK(cx,PL_curpm); |
c277df42 | 3071 | POPEVAL(cx); |
c277df42 | 3072 | } |
a0d0e21e | 3073 | lex_end(); |
f9bddea7 | 3074 | LEAVE; /* pp_entereval knows about this LEAVE. */ |
9d4ba2ae AL |
3075 | |
3076 | msg = SvPVx_nolen_const(ERRSV); | |
7a2e2cd6 | 3077 | if (optype == OP_REQUIRE) { |
b464bac0 | 3078 | const SV * const nsv = cx->blk_eval.old_namesv; |
504618e9 | 3079 | (void)hv_store(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), |
27bcc0a7 | 3080 | &PL_sv_undef, 0); |
58d3fd3b SH |
3081 | Perl_croak(aTHX_ "%sCompilation failed in require", |
3082 | *msg ? msg : "Unknown error\n"); | |
5a844595 GS |
3083 | } |
3084 | else if (startop) { | |
3280af22 | 3085 | POPBLOCK(cx,PL_curpm); |
c277df42 | 3086 | POPEVAL(cx); |
5a844595 GS |
3087 | Perl_croak(aTHX_ "%sCompilation failed in regexp", |
3088 | (*msg ? msg : "Unknown error\n")); | |
7a2e2cd6 | 3089 | } |
9d7f88dd | 3090 | else { |
9d7f88dd | 3091 | if (!*msg) { |
6502358f | 3092 | sv_setpvs(ERRSV, "Compilation error"); |
9d7f88dd SR |
3093 | } |
3094 | } | |
9d4ba2ae | 3095 | PERL_UNUSED_VAR(newsp); |
410be5db DM |
3096 | PUSHs(&PL_sv_undef); |
3097 | PUTBACK; | |
3098 | return FALSE; | |
a0d0e21e | 3099 | } |
57843af0 | 3100 | CopLINE_set(&PL_compiling, 0); |
c277df42 | 3101 | if (startop) { |
3280af22 | 3102 | *startop = PL_eval_root; |
c277df42 | 3103 | } else |
3280af22 | 3104 | SAVEFREEOP(PL_eval_root); |
0c58d367 RGS |
3105 | |
3106 | /* Set the context for this new optree. | |
3107 | * If the last op is an OP_REQUIRE, force scalar context. | |
3108 | * Otherwise, propagate the context from the eval(). */ | |
3109 | if (PL_eval_root->op_type == OP_LEAVEEVAL | |
3110 | && cUNOPx(PL_eval_root)->op_first->op_type == OP_LINESEQ | |
3111 | && cLISTOPx(cUNOPx(PL_eval_root)->op_first)->op_last->op_type | |
3112 | == OP_REQUIRE) | |
3113 | scalar(PL_eval_root); | |
7df0357e | 3114 | else if ((gimme & G_WANT) == G_VOID) |
3280af22 | 3115 | scalarvoid(PL_eval_root); |
7df0357e | 3116 | else if ((gimme & G_WANT) == G_ARRAY) |
3280af22 | 3117 | list(PL_eval_root); |
a0d0e21e | 3118 | else |
3280af22 | 3119 | scalar(PL_eval_root); |
a0d0e21e LW |
3120 | |
3121 | DEBUG_x(dump_eval()); | |
3122 | ||
55497cff | 3123 | /* Register with debugger: */ |
6482a30d | 3124 | if (PERLDB_INTER && saveop && saveop->op_type == OP_REQUIRE) { |
b96d8cd9 | 3125 | CV * const cv = get_cvs("DB::postponed", 0); |
55497cff | 3126 | if (cv) { |
3127 | dSP; | |
924508f0 | 3128 | PUSHMARK(SP); |
ad64d0ec | 3129 | XPUSHs(MUTABLE_SV(CopFILEGV(&PL_compiling))); |
55497cff | 3130 | PUTBACK; |
ad64d0ec | 3131 | call_sv(MUTABLE_SV(cv), G_DISCARD); |
55497cff | 3132 | } |
3133 | } | |
3134 | ||
3c10abe3 AG |
3135 | if (PL_unitcheckav) |
3136 | call_list(PL_scopestack_ix, PL_unitcheckav); | |
3137 | ||
a0d0e21e LW |
3138 | /* compiled okay, so do it */ |
3139 | ||
3280af22 NIS |
3140 | CvDEPTH(PL_compcv) = 1; |
3141 | SP = PL_stack_base + POPMARK; /* pop original mark */ | |
533c011a | 3142 | PL_op = saveop; /* The caller may need it. */ |
bc177e6b | 3143 | PL_parser->lex_state = LEX_NOTPARSING; /* $^S needs this. */ |
5dc0d613 | 3144 | |
410be5db DM |
3145 | PUTBACK; |
3146 | return TRUE; | |
a0d0e21e LW |
3147 | } |
3148 | ||
a6c40364 | 3149 | STATIC PerlIO * |
0786552a | 3150 | S_check_type_and_open(pTHX_ const char *name) |
ce8abf5f SP |
3151 | { |
3152 | Stat_t st; | |
c445ea15 | 3153 | const int st_rc = PerlLIO_stat(name, &st); |
df528165 | 3154 | |
7918f24d NC |
3155 | PERL_ARGS_ASSERT_CHECK_TYPE_AND_OPEN; |
3156 | ||
6b845e56 | 3157 | if (st_rc < 0 || S_ISDIR(st.st_mode) || S_ISBLK(st.st_mode)) { |
4608196e | 3158 | return NULL; |
ce8abf5f SP |
3159 | } |
3160 | ||
0786552a | 3161 | return PerlIO_open(name, PERL_SCRIPT_MODE); |
ce8abf5f SP |
3162 | } |
3163 | ||
75c20bac | 3164 | #ifndef PERL_DISABLE_PMC |
ce8abf5f | 3165 | STATIC PerlIO * |
0786552a | 3166 | S_doopen_pm(pTHX_ const char *name, const STRLEN namelen) |
b295d113 | 3167 | { |
b295d113 TH |
3168 | PerlIO *fp; |
3169 | ||
7918f24d NC |
3170 | PERL_ARGS_ASSERT_DOOPEN_PM; |
3171 | ||
ce9440c8 | 3172 | if (namelen > 3 && memEQs(name + namelen - 3, 3, ".pm")) { |
50b8ed39 NC |
3173 | SV *const pmcsv = newSV(namelen + 2); |
3174 | char *const pmc = SvPVX(pmcsv); | |
a6c40364 | 3175 | Stat_t pmcstat; |
50b8ed39 NC |
3176 | |
3177 | memcpy(pmc, name, namelen); | |
3178 | pmc[namelen] = 'c'; | |
3179 | pmc[namelen + 1] = '\0'; | |
3180 | ||
a6c40364 | 3181 | if (PerlLIO_stat(pmc, &pmcstat) < 0) { |
0786552a | 3182 | fp = check_type_and_open(name); |
a6c40364 GS |
3183 | } |
3184 | else { | |
0786552a | 3185 | fp = check_type_and_open(pmc); |
b295d113 | 3186 | } |
a6c40364 GS |
3187 | SvREFCNT_dec(pmcsv); |
3188 | } | |
3189 | else { | |
0786552a | 3190 | fp = check_type_and_open(name); |
b295d113 | 3191 | } |
b295d113 | 3192 | return fp; |
75c20bac | 3193 | } |
7925835c | 3194 | #else |
75c20bac | 3195 | # define doopen_pm(name, namelen) check_type_and_open(name) |
7925835c | 3196 | #endif /* !PERL_DISABLE_PMC */ |
b295d113 | 3197 | |
a0d0e21e LW |
3198 | PP(pp_require) |
3199 | { | |
27da23d5 | 3200 | dVAR; dSP; |
c09156bb | 3201 | register PERL_CONTEXT *cx; |
a0d0e21e | 3202 | SV *sv; |
5c144d81 | 3203 | const char *name; |
6132ea6c | 3204 | STRLEN len; |
4492be7a JM |
3205 | char * unixname; |
3206 | STRLEN unixlen; | |
62f5ad7a | 3207 | #ifdef VMS |
4492be7a | 3208 | int vms_unixname = 0; |
62f5ad7a | 3209 | #endif |
c445ea15 AL |
3210 | const char *tryname = NULL; |
3211 | SV *namesv = NULL; | |
f54cb97a | 3212 | const I32 gimme = GIMME_V; |
bbed91b5 | 3213 | int filter_has_file = 0; |
c445ea15 | 3214 | PerlIO *tryrsfp = NULL; |
34113e50 | 3215 | SV *filter_cache = NULL; |
c445ea15 AL |
3216 | SV *filter_state = NULL; |
3217 | SV *filter_sub = NULL; | |
3218 | SV *hook_sv = NULL; | |
6ec9efec JH |
3219 | SV *encoding; |
3220 | OP *op; | |
a0d0e21e LW |
3221 | |
3222 | sv = POPs; | |
d7aa5382 | 3223 | if ( (SvNIOKp(sv) || SvVOK(sv)) && PL_op->op_type != OP_DOFILE) { |
d7aa5382 JP |
3224 | sv = new_version(sv); |
3225 | if (!sv_derived_from(PL_patchlevel, "version")) | |
ac0e6a2f | 3226 | upg_version(PL_patchlevel, TRUE); |
149c1637 | 3227 | if (cUNOP->op_first->op_type == OP_CONST && cUNOP->op_first->op_private & OPpCONST_NOVER) { |
3cacfbb9 | 3228 | if ( vcmp(sv,PL_patchlevel) <= 0 ) |
468aa647 | 3229 | DIE(aTHX_ "Perls since %"SVf" too modern--this is %"SVf", stopped", |
be2597df | 3230 | SVfARG(vnormal(sv)), SVfARG(vnormal(PL_patchlevel))); |
468aa647 RGS |
3231 | } |
3232 | else { | |
d1029faa JP |
3233 | if ( vcmp(sv,PL_patchlevel) > 0 ) { |
3234 | I32 first = 0; | |
3235 | AV *lav; | |
3236 | SV * const req = SvRV(sv); | |
85fbaab2 | 3237 | SV * const pv = *hv_fetchs(MUTABLE_HV(req), "original", FALSE); |
d1029faa JP |
3238 | |
3239 | /* get the left hand term */ | |
502c6561 | 3240 | lav = MUTABLE_AV(SvRV(*hv_fetchs(MUTABLE_HV(req), "version", FALSE))); |
d1029faa JP |
3241 | |
3242 | first = SvIV(*av_fetch(lav,0,0)); | |
3243 | if ( first > (int)PERL_REVISION /* probably 'use 6.0' */ | |
85fbaab2 | 3244 | || hv_exists(MUTABLE_HV(req), "qv", 2 ) /* qv style */ |
d1029faa JP |
3245 | || av_len(lav) > 1 /* FP with > 3 digits */ |
3246 | || strstr(SvPVX(pv),".0") /* FP with leading 0 */ | |
3247 | ) { | |
3248 | DIE(aTHX_ "Perl %"SVf" required--this is only " | |
3249 | "%"SVf", stopped", SVfARG(vnormal(req)), | |
3250 | SVfARG(vnormal(PL_patchlevel))); | |
3251 | } | |
3252 | else { /* probably 'use 5.10' or 'use 5.8' */ | |
3253 | SV * hintsv = newSV(0); | |
3254 | I32 second = 0; | |
3255 | ||
3256 | if (av_len(lav)>=1) | |
3257 | second = SvIV(*av_fetch(lav,1,0)); | |
3258 | ||
3259 | second /= second >= 600 ? 100 : 10; | |
3260 | hintsv = Perl_newSVpvf(aTHX_ "v%d.%d.%d", | |
3261 | (int)first, (int)second,0); | |
3262 | upg_version(hintsv, TRUE); | |
3263 | ||
3264 | DIE(aTHX_ "Perl %"SVf" required (did you mean %"SVf"?)" | |
3265 | "--this is only %"SVf", stopped", | |
3266 | SVfARG(vnormal(req)), | |
3267 | SVfARG(vnormal(hintsv)), | |
3268 | SVfARG(vnormal(PL_patchlevel))); | |
3269 | } | |
3270 | } | |
468aa647 | 3271 | } |
d7aa5382 | 3272 | |
fbc891ce RB |
3273 | /* We do this only with use, not require. */ |
3274 | if (PL_compcv && | |
fbc891ce RB |
3275 | /* If we request a version >= 5.9.5, load feature.pm with the |
3276 | * feature bundle that corresponds to the required version. */ | |
2e8342de | 3277 | vcmp(sv, sv_2mortal(upg_version(newSVnv(5.009005), FALSE))) >= 0) { |
7dfde25d RGS |
3278 | SV *const importsv = vnormal(sv); |
3279 | *SvPVX_mutable(importsv) = ':'; | |
3280 | ENTER; | |
3281 | Perl_load_module(aTHX_ 0, newSVpvs("feature"), NULL, importsv, NULL); | |
3282 | LEAVE; | |
3283 | } | |
53eb19dd S |
3284 | /* If a version >= 5.11.0 is requested, strictures are on by default! */ |
3285 | if (PL_compcv && | |
3286 | vcmp(sv, sv_2mortal(upg_version(newSVnv(5.011000), FALSE))) >= 0) { | |
5cc917d6 | 3287 | PL_hints |= (HINT_STRICT_REFS | HINT_STRICT_SUBS | HINT_STRICT_VARS); |
53eb19dd S |
3288 | } |
3289 | ||
7dfde25d | 3290 | RETPUSHYES; |
a0d0e21e | 3291 | } |
5c144d81 | 3292 | name = SvPV_const(sv, len); |
6132ea6c | 3293 | if (!(name && len > 0 && *name)) |
cea2e8a9 | 3294 | DIE(aTHX_ "Null filename used"); |
4633a7c4 | 3295 | TAINT_PROPER("require"); |
4492be7a JM |
3296 | |
3297 | ||
3298 | #ifdef VMS | |
3299 | /* The key in the %ENV hash is in the syntax of file passed as the argument | |
3300 | * usually this is in UNIX format, but sometimes in VMS format, which | |
3301 | * can result in a module being pulled in more than once. | |
3302 | * To prevent this, the key must be stored in UNIX format if the VMS | |
3303 | * name can be translated to UNIX. | |
3304 | */ | |
3305 | if ((unixname = tounixspec(name, NULL)) != NULL) { | |
3306 | unixlen = strlen(unixname); | |
3307 | vms_unixname = 1; | |
3308 | } | |
3309 | else | |
3310 | #endif | |
3311 | { | |
3312 | /* if not VMS or VMS name can not be translated to UNIX, pass it | |
3313 | * through. | |
3314 | */ | |
3315 | unixname = (char *) name; | |
3316 | unixlen = len; | |
3317 | } | |
44f8325f | 3318 | if (PL_op->op_type == OP_REQUIRE) { |
4492be7a JM |
3319 | SV * const * const svp = hv_fetch(GvHVn(PL_incgv), |
3320 | unixname, unixlen, 0); | |
44f8325f AL |
3321 | if ( svp ) { |
3322 | if (*svp != &PL_sv_undef) | |
3323 | RETPUSHYES; | |
3324 | else | |
087b5369 RD |
3325 | DIE(aTHX_ "Attempt to reload %s aborted.\n" |
3326 | "Compilation failed in require", unixname); | |
44f8325f | 3327 | } |
4d8b06f1 | 3328 | } |
a0d0e21e LW |
3329 | |
3330 | /* prepare to compile file */ | |
3331 | ||
be4b629d | 3332 | if (path_is_absolute(name)) { |
46fc3d4c | 3333 | tryname = name; |
0786552a | 3334 | tryrsfp = doopen_pm(name, len); |
bf4acbe4 | 3335 | } |
be4b629d | 3336 | if (!tryrsfp) { |
44f8325f | 3337 | AV * const ar = GvAVn(PL_incgv); |
a0d0e21e | 3338 | I32 i; |
748a9306 | 3339 | #ifdef VMS |
4492be7a | 3340 | if (vms_unixname) |
46fc3d4c | 3341 | #endif |
3342 | { | |
d0328fd7 | 3343 | namesv = newSV_type(SVt_PV); |
46fc3d4c | 3344 | for (i = 0; i <= AvFILL(ar); i++) { |
df528165 | 3345 | SV * const dirsv = *av_fetch(ar, i, TRUE); |
bbed91b5 | 3346 | |
ad64d0ec | 3347 | if (SvTIED_mg((const SV *)ar, PERL_MAGIC_tied)) |
c38a6530 | 3348 | mg_get(dirsv); |
bbed91b5 KF |
3349 | if (SvROK(dirsv)) { |
3350 | int count; | |
a3b58a99 | 3351 | SV **svp; |
bbed91b5 KF |
3352 | SV *loader = dirsv; |
3353 | ||
e14e2dc8 NC |
3354 | if (SvTYPE(SvRV(loader)) == SVt_PVAV |
3355 | && !sv_isobject(loader)) | |
3356 | { | |
502c6561 | 3357 | loader = *av_fetch(MUTABLE_AV(SvRV(loader)), 0, TRUE); |
bbed91b5 KF |
3358 | } |
3359 | ||
b900a521 | 3360 | Perl_sv_setpvf(aTHX_ namesv, "/loader/0x%"UVxf"/%s", |
44f0be63 | 3361 | PTR2UV(SvRV(dirsv)), name); |
349d4f2f | 3362 | tryname = SvPVX_const(namesv); |
c445ea15 | 3363 | tryrsfp = NULL; |
bbed91b5 KF |
3364 | |
3365 | ENTER; | |
3366 | SAVETMPS; | |
3367 | EXTEND(SP, 2); | |
3368 | ||
3369 | PUSHMARK(SP); | |
3370 | PUSHs(dirsv); | |
3371 | PUSHs(sv); | |
3372 | PUTBACK; | |
e982885c NC |
3373 | if (sv_isobject(loader)) |
3374 | count = call_method("INC", G_ARRAY); | |
3375 | else | |
3376 | count = call_sv(loader, G_ARRAY); | |
bbed91b5 KF |
3377 | SPAGAIN; |
3378 | ||
a3b58a99 RGS |
3379 | /* Adjust file name if the hook has set an %INC entry */ |
3380 | svp = hv_fetch(GvHVn(PL_incgv), name, len, 0); | |
3381 | if (svp) | |
d8723a6a | 3382 | tryname = SvPV_nolen_const(*svp); |
a3b58a99 | 3383 | |
bbed91b5 KF |
3384 | if (count > 0) { |
3385 | int i = 0; | |
3386 | SV *arg; | |
3387 | ||
3388 | SP -= count - 1; | |
3389 | arg = SP[i++]; | |
3390 | ||
34113e50 NC |
3391 | if (SvROK(arg) && (SvTYPE(SvRV(arg)) <= SVt_PVLV) |
3392 | && !isGV_with_GP(SvRV(arg))) { | |
3393 | filter_cache = SvRV(arg); | |
74c765eb | 3394 | SvREFCNT_inc_simple_void_NN(filter_cache); |
34113e50 NC |
3395 | |
3396 | if (i < count) { | |
3397 | arg = SP[i++]; | |
3398 | } | |
3399 | } | |
3400 | ||
6e592b3a | 3401 | if (SvROK(arg) && isGV_with_GP(SvRV(arg))) { |
bbed91b5 KF |
3402 | arg = SvRV(arg); |
3403 | } | |
3404 | ||
6e592b3a | 3405 | if (isGV_with_GP(arg)) { |
159b6efe | 3406 | IO * const io = GvIO((const GV *)arg); |
bbed91b5 KF |
3407 | |
3408 | ++filter_has_file; | |
3409 | ||
3410 | if (io) { | |
3411 | tryrsfp = IoIFP(io); | |
0f7de14d NC |
3412 | if (IoOFP(io) && IoOFP(io) != IoIFP(io)) { |
3413 | PerlIO_close(IoOFP(io)); | |
bbed91b5 | 3414 | } |
0f7de14d NC |
3415 | IoIFP(io) = NULL; |
3416 | IoOFP(io) = NULL; | |
bbed91b5 KF |
3417 | } |
3418 | ||
3419 | if (i < count) { | |
3420 | arg = SP[i++]; | |
3421 | } | |
3422 | } | |
3423 | ||
3424 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVCV) { | |
3425 | filter_sub = arg; | |
74c765eb | 3426 | SvREFCNT_inc_simple_void_NN(filter_sub); |
bbed91b5 KF |
3427 | |
3428 | if (i < count) { | |
3429 | filter_state = SP[i]; | |
b37c2d43 | 3430 | SvREFCNT_inc_simple_void(filter_state); |
bbed91b5 | 3431 | } |
34113e50 | 3432 | } |
bbed91b5 | 3433 | |
34113e50 NC |
3434 | if (!tryrsfp && (filter_cache || filter_sub)) { |
3435 | tryrsfp = PerlIO_open(BIT_BUCKET, | |
3436 | PERL_SCRIPT_MODE); | |
bbed91b5 | 3437 | } |
1d06aecd | 3438 | SP--; |
bbed91b5 KF |
3439 | } |
3440 | ||
3441 | PUTBACK; | |
3442 | FREETMPS; | |
3443 | LEAVE; | |
3444 | ||
3445 | if (tryrsfp) { | |
89ccab8c | 3446 | hook_sv = dirsv; |
bbed91b5 KF |
3447 | break; |
3448 | } | |
3449 | ||
3450 | filter_has_file = 0; | |
34113e50 NC |
3451 | if (filter_cache) { |
3452 | SvREFCNT_dec(filter_cache); | |
3453 | filter_cache = NULL; | |
3454 | } | |
bbed91b5 KF |
3455 | if (filter_state) { |
3456 | SvREFCNT_dec(filter_state); | |
c445ea15 | 3457 | filter_state = NULL; |
bbed91b5 KF |
3458 | } |
3459 | if (filter_sub) { | |
3460 | SvREFCNT_dec(filter_sub); | |
c445ea15 | 3461 | filter_sub = NULL; |
bbed91b5 KF |
3462 | } |
3463 | } | |
3464 | else { | |
be4b629d | 3465 | if (!path_is_absolute(name) |
be4b629d | 3466 | ) { |
b640a14a NC |
3467 | const char *dir; |
3468 | STRLEN dirlen; | |
3469 | ||
3470 | if (SvOK(dirsv)) { | |
3471 | dir = SvPV_const(dirsv, dirlen); | |
3472 | } else { | |
3473 | dir = ""; | |
3474 | dirlen = 0; | |
3475 | } | |
3476 | ||
e37778c2 | 3477 | #ifdef VMS |
bbed91b5 | 3478 | char *unixdir; |
c445ea15 | 3479 | if ((unixdir = tounixpath(dir, NULL)) == NULL) |
bbed91b5 KF |
3480 | continue; |
3481 | sv_setpv(namesv, unixdir); | |
3482 | sv_catpv(namesv, unixname); | |
e37778c2 NC |
3483 | #else |
3484 | # ifdef __SYMBIAN32__ | |
27da23d5 JH |
3485 | if (PL_origfilename[0] && |
3486 | PL_origfilename[1] == ':' && | |
3487 | !(dir[0] && dir[1] == ':')) | |
3488 | Perl_sv_setpvf(aTHX_ namesv, | |
3489 | "%c:%s\\%s", | |
3490 | PL_origfilename[0], | |
3491 | dir, name); | |
3492 | else | |
3493 | Perl_sv_setpvf(aTHX_ namesv, | |
3494 | "%s\\%s", | |
3495 | dir, name); | |
e37778c2 | 3496 | # else |
b640a14a NC |
3497 | /* The equivalent of |
3498 | Perl_sv_setpvf(aTHX_ namesv, "%s/%s", dir, name); | |
3499 | but without the need to parse the format string, or | |
3500 | call strlen on either pointer, and with the correct | |
3501 | allocation up front. */ | |
3502 | { | |
3503 | char *tmp = SvGROW(namesv, dirlen + len + 2); | |
3504 | ||
3505 | memcpy(tmp, dir, dirlen); | |
3506 | tmp +=dirlen; | |
3507 | *tmp++ = '/'; | |
3508 | /* name came from an SV, so it will have a '\0' at the | |
3509 | end that we can copy as part of this memcpy(). */ | |
3510 | memcpy(tmp, name, len + 1); | |
3511 | ||
3512 | SvCUR_set(namesv, dirlen + len + 1); | |
3513 | ||
3514 | /* Don't even actually have to turn SvPOK_on() as we | |
3515 | access it directly with SvPVX() below. */ | |
3516 | } | |
27da23d5 | 3517 | # endif |
bf4acbe4 | 3518 | #endif |
bbed91b5 | 3519 | TAINT_PROPER("require"); |
349d4f2f | 3520 | tryname = SvPVX_const(namesv); |
0786552a | 3521 | tryrsfp = doopen_pm(tryname, SvCUR(namesv)); |
bbed91b5 | 3522 | if (tryrsfp) { |
e63be746 RGS |
3523 | if (tryname[0] == '.' && tryname[1] == '/') { |
3524 | ++tryname; | |
3525 | while (*++tryname == '/'); | |
3526 | } | |
bbed91b5 KF |
3527 | break; |
3528 | } | |
ff806af2 DM |
3529 | else if (errno == EMFILE) |
3530 | /* no point in trying other paths if out of handles */ | |
3531 | break; | |
be4b629d | 3532 | } |
46fc3d4c | 3533 | } |
a0d0e21e LW |
3534 | } |
3535 | } | |
3536 | } | |
f4dd75d9 | 3537 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3538 | CopFILE_set(&PL_compiling, tryrsfp ? tryname : name); |
46fc3d4c | 3539 | SvREFCNT_dec(namesv); |
a0d0e21e | 3540 | if (!tryrsfp) { |
533c011a | 3541 | if (PL_op->op_type == OP_REQUIRE) { |
5c144d81 | 3542 | const char *msgstr = name; |
e31de809 | 3543 | if(errno == EMFILE) { |
b9b739dc NC |
3544 | SV * const msg |
3545 | = sv_2mortal(Perl_newSVpvf(aTHX_ "%s: %s", msgstr, | |
3546 | Strerror(errno))); | |
349d4f2f | 3547 | msgstr = SvPV_nolen_const(msg); |
e31de809 SP |
3548 | } else { |
3549 | if (namesv) { /* did we lookup @INC? */ | |
44f8325f | 3550 | AV * const ar = GvAVn(PL_incgv); |
e31de809 | 3551 | I32 i; |
b8f04b1b NC |
3552 | SV * const msg = sv_2mortal(Perl_newSVpvf(aTHX_ |
3553 | "%s in @INC%s%s (@INC contains:", | |
3554 | msgstr, | |
3555 | (instr(msgstr, ".h ") | |
3556 | ? " (change .h to .ph maybe?)" : ""), | |
3557 | (instr(msgstr, ".ph ") | |
3558 | ? " (did you run h2ph?)" : "") | |
3559 | )); | |
3560 | ||
e31de809 | 3561 | for (i = 0; i <= AvFILL(ar); i++) { |
396482e1 | 3562 | sv_catpvs(msg, " "); |
b8f04b1b | 3563 | sv_catsv(msg, *av_fetch(ar, i, TRUE)); |
e31de809 | 3564 | } |
396482e1 | 3565 | sv_catpvs(msg, ")"); |
e31de809 SP |
3566 | msgstr = SvPV_nolen_const(msg); |
3567 | } | |
2683423c | 3568 | } |
ea071790 | 3569 | DIE(aTHX_ "Can't locate %s", msgstr); |
a0d0e21e LW |
3570 | } |
3571 | ||
3572 | RETPUSHUNDEF; | |
3573 | } | |
d8bfb8bd | 3574 | else |
93189314 | 3575 | SETERRNO(0, SS_NORMAL); |
a0d0e21e LW |
3576 | |
3577 | /* Assume success here to prevent recursive requirement. */ | |
238d24b4 | 3578 | /* name is never assigned to again, so len is still strlen(name) */ |
d3a4e64e | 3579 | /* Check whether a hook in @INC has already filled %INC */ |
44f8325f | 3580 | if (!hook_sv) { |
4492be7a JM |
3581 | (void)hv_store(GvHVn(PL_incgv), |
3582 | unixname, unixlen, newSVpv(CopFILE(&PL_compiling),0),0); | |
44f8325f | 3583 | } else { |
4492be7a | 3584 | SV** const svp = hv_fetch(GvHVn(PL_incgv), unixname, unixlen, 0); |
44f8325f | 3585 | if (!svp) |
4492be7a JM |
3586 | (void)hv_store(GvHVn(PL_incgv), |
3587 | unixname, unixlen, SvREFCNT_inc_simple(hook_sv), 0 ); | |
d3a4e64e | 3588 | } |
a0d0e21e LW |
3589 | |
3590 | ENTER; | |
3591 | SAVETMPS; | |
5486870f | 3592 | lex_start(NULL, tryrsfp, TRUE); |
e50aee73 | 3593 | |
b3ac6de7 | 3594 | SAVEHINTS(); |
3280af22 | 3595 | PL_hints = 0; |
f747ebd6 | 3596 | hv_clear(GvHV(PL_hintgv)); |
27eaf14c | 3597 | |
68da3b2f | 3598 | SAVECOMPILEWARNINGS(); |
0453d815 | 3599 | if (PL_dowarn & G_WARN_ALL_ON) |
d3a7d8c7 | 3600 | PL_compiling.cop_warnings = pWARN_ALL ; |
0453d815 | 3601 | else if (PL_dowarn & G_WARN_ALL_OFF) |
d3a7d8c7 | 3602 | PL_compiling.cop_warnings = pWARN_NONE ; |
ac27b0f5 | 3603 | else |
d3a7d8c7 | 3604 | PL_compiling.cop_warnings = pWARN_STD ; |
a0d0e21e | 3605 | |
34113e50 | 3606 | if (filter_sub || filter_cache) { |
4464f08e NC |
3607 | /* We can use the SvPV of the filter PVIO itself as our cache, rather |
3608 | than hanging another SV from it. In turn, filter_add() optionally | |
3609 | takes the SV to use as the filter (or creates a new SV if passed | |
3610 | NULL), so simply pass in whatever value filter_cache has. */ | |
3611 | SV * const datasv = filter_add(S_run_user_filter, filter_cache); | |
bbed91b5 | 3612 | IoLINES(datasv) = filter_has_file; |
159b6efe NC |
3613 | IoTOP_GV(datasv) = MUTABLE_GV(filter_state); |
3614 | IoBOTTOM_GV(datasv) = MUTABLE_GV(filter_sub); | |
bbed91b5 KF |
3615 | } |
3616 | ||
3617 | /* switch to eval mode */ | |
a0d0e21e | 3618 | PUSHBLOCK(cx, CXt_EVAL, SP); |
6b75f042 | 3619 | PUSHEVAL(cx, name); |
f39bc417 | 3620 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e | 3621 | |
57843af0 GS |
3622 | SAVECOPLINE(&PL_compiling); |
3623 | CopLINE_set(&PL_compiling, 0); | |
a0d0e21e LW |
3624 | |
3625 | PUTBACK; | |
6ec9efec JH |
3626 | |
3627 | /* Store and reset encoding. */ | |
3628 | encoding = PL_encoding; | |
c445ea15 | 3629 | PL_encoding = NULL; |
6ec9efec | 3630 | |
410be5db DM |
3631 | if (doeval(gimme, NULL, NULL, PL_curcop->cop_seq)) |
3632 | op = DOCATCH(PL_eval_start); | |
3633 | else | |
3634 | op = PL_op->op_next; | |
bfed75c6 | 3635 | |
6ec9efec JH |
3636 | /* Restore encoding. */ |
3637 | PL_encoding = encoding; | |
3638 | ||
3639 | return op; | |
a0d0e21e LW |
3640 | } |
3641 | ||
996c9baa VP |
3642 | /* This is a op added to hold the hints hash for |
3643 | pp_entereval. The hash can be modified by the code | |
3644 | being eval'ed, so we return a copy instead. */ | |
3645 | ||
3646 | PP(pp_hintseval) | |
3647 | { | |
3648 | dVAR; | |
3649 | dSP; | |
ad64d0ec | 3650 | mXPUSHs(MUTABLE_SV(Perl_hv_copy_hints_hv(aTHX_ MUTABLE_HV(cSVOP_sv)))); |
996c9baa VP |
3651 | RETURN; |
3652 | } | |
3653 | ||
3654 | ||
a0d0e21e LW |
3655 | PP(pp_entereval) |
3656 | { | |
27da23d5 | 3657 | dVAR; dSP; |
c09156bb | 3658 | register PERL_CONTEXT *cx; |
0d863452 | 3659 | SV *sv; |
890ce7af | 3660 | const I32 gimme = GIMME_V; |
fd06b02c | 3661 | const U32 was = PL_breakable_sub_gen; |
83ee9e09 GS |
3662 | char tbuf[TYPE_DIGITS(long) + 12]; |
3663 | char *tmpbuf = tbuf; | |
a0d0e21e | 3664 | STRLEN len; |
a3985cdc | 3665 | CV* runcv; |
d819b83a | 3666 | U32 seq; |
c445ea15 | 3667 | HV *saved_hh = NULL; |
e389bba9 | 3668 | |
0d863452 | 3669 | if (PL_op->op_private & OPpEVAL_HAS_HH) { |
85fbaab2 | 3670 | saved_hh = MUTABLE_HV(SvREFCNT_inc(POPs)); |
0d863452 RH |
3671 | } |
3672 | sv = POPs; | |
a0d0e21e | 3673 | |
af2d3def | 3674 | TAINT_IF(SvTAINTED(sv)); |
748a9306 | 3675 | TAINT_PROPER("eval"); |
a0d0e21e LW |
3676 | |
3677 | ENTER; | |
5486870f | 3678 | lex_start(sv, NULL, FALSE); |
748a9306 | 3679 | SAVETMPS; |
ac27b0f5 | 3680 | |
a0d0e21e LW |
3681 | /* switch to eval mode */ |
3682 | ||
83ee9e09 | 3683 | if (PERLDB_NAMEEVAL && CopLINE(PL_curcop)) { |
8b38226b AL |
3684 | SV * const temp_sv = sv_newmortal(); |
3685 | Perl_sv_setpvf(aTHX_ temp_sv, "_<(eval %lu)[%s:%"IVdf"]", | |
83ee9e09 GS |
3686 | (unsigned long)++PL_evalseq, |
3687 | CopFILE(PL_curcop), (IV)CopLINE(PL_curcop)); | |
8b38226b AL |
3688 | tmpbuf = SvPVX(temp_sv); |
3689 | len = SvCUR(temp_sv); | |
83ee9e09 GS |
3690 | } |
3691 | else | |
d9fad198 | 3692 | len = my_snprintf(tmpbuf, sizeof(tbuf), "_<(eval %lu)", (unsigned long)++PL_evalseq); |
f4dd75d9 | 3693 | SAVECOPFILE_FREE(&PL_compiling); |
57843af0 | 3694 | CopFILE_set(&PL_compiling, tmpbuf+2); |
f4dd75d9 | 3695 | SAVECOPLINE(&PL_compiling); |
57843af0 | 3696 | CopLINE_set(&PL_compiling, 1); |
55497cff | 3697 | /* XXX For C<eval "...">s within BEGIN {} blocks, this ends up |
3698 | deleting the eval's FILEGV from the stash before gv_check() runs | |
3699 | (i.e. before run-time proper). To work around the coredump that | |
3700 | ensues, we always turn GvMULTI_on for any globals that were | |
3701 | introduced within evals. See force_ident(). GSAR 96-10-12 */ | |
b3ac6de7 | 3702 | SAVEHINTS(); |
533c011a | 3703 | PL_hints = PL_op->op_targ; |
cda55376 AV |
3704 | if (saved_hh) { |
3705 | /* SAVEHINTS created a new HV in PL_hintgv, which we need to GC */ | |
3706 | SvREFCNT_dec(GvHV(PL_hintgv)); | |
0d863452 | 3707 | GvHV(PL_hintgv) = saved_hh; |
cda55376 | 3708 | } |
68da3b2f | 3709 | SAVECOMPILEWARNINGS(); |
72dc9ed5 | 3710 | PL_compiling.cop_warnings = DUP_WARNINGS(PL_curcop->cop_warnings); |
c28fe1ec NC |
3711 | if (PL_compiling.cop_hints_hash) { |
3712 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); | |
a24d89c9 | 3713 | } |
c28fe1ec NC |
3714 | PL_compiling.cop_hints_hash = PL_curcop->cop_hints_hash; |
3715 | if (PL_compiling.cop_hints_hash) { | |
cbb1fbea | 3716 | HINTS_REFCNT_LOCK; |
c28fe1ec | 3717 | PL_compiling.cop_hints_hash->refcounted_he_refcnt++; |
cbb1fbea | 3718 | HINTS_REFCNT_UNLOCK; |
a24d89c9 | 3719 | } |
d819b83a DM |
3720 | /* special case: an eval '' executed within the DB package gets lexically |
3721 | * placed in the first non-DB CV rather than the current CV - this | |
3722 | * allows the debugger to execute code, find lexicals etc, in the | |
3723 | * scope of the code being debugged. Passing &seq gets find_runcv | |
3724 | * to do the dirty work for us */ | |
3725 | runcv = find_runcv(&seq); | |
a0d0e21e | 3726 | |
6b35e009 | 3727 | PUSHBLOCK(cx, (CXt_EVAL|CXp_REAL), SP); |
6b75f042 | 3728 | PUSHEVAL(cx, 0); |
f39bc417 | 3729 | cx->blk_eval.retop = PL_op->op_next; |
a0d0e21e LW |
3730 | |
3731 | /* prepare to compile string */ | |
3732 | ||
a44e3ce2 | 3733 | if ((PERLDB_LINE || PERLDB_SAVESRC) && PL_curstash != PL_debstash) |
bdc0bf6f | 3734 | save_lines(CopFILEAV(&PL_compiling), PL_parser->linestr); |
a0d0e21e | 3735 | PUTBACK; |
f9bddea7 NC |
3736 | |
3737 | if (doeval(gimme, NULL, runcv, seq)) { | |
3738 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ | |
3739 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3740 | : PERLDB_SAVESRC_NOSUBS) { | |
3741 | /* Retain the filegv we created. */ | |
3742 | } else { | |
3743 | char *const safestr = savepvn(tmpbuf, len); | |
3744 | SAVEDELETE(PL_defstash, safestr, len); | |
3745 | } | |
3746 | return DOCATCH(PL_eval_start); | |
3747 | } else { | |
3748 | /* We have already left the scope set up earler thanks to the LEAVE | |
3749 | in doeval(). */ | |
eb044b10 NC |
3750 | if (was != PL_breakable_sub_gen /* Some subs defined here. */ |
3751 | ? (PERLDB_LINE || PERLDB_SAVESRC) | |
3752 | : PERLDB_SAVESRC_INVALID) { | |
f9bddea7 NC |
3753 | /* Retain the filegv we created. */ |
3754 | } else { | |
3755 | (void)hv_delete(PL_defstash, tmpbuf, len, G_DISCARD); | |
3756 | } | |
3757 | return PL_op->op_next; | |
3758 | } | |
a0d0e21e LW |
3759 | } |
3760 | ||
3761 | PP(pp_leaveeval) | |
3762 | { | |
27da23d5 | 3763 | dVAR; dSP; |
a0d0e21e LW |
3764 | register SV **mark; |
3765 | SV **newsp; | |
3766 | PMOP *newpm; | |
3767 | I32 gimme; | |
c09156bb | 3768 | register PERL_CONTEXT *cx; |
a0d0e21e | 3769 | OP *retop; |
06b5626a | 3770 | const U8 save_flags = PL_op -> op_flags; |
a0d0e21e LW |
3771 | I32 optype; |
3772 | ||
3773 | POPBLOCK(cx,newpm); | |
3774 | POPEVAL(cx); | |
f39bc417 | 3775 | retop = cx->blk_eval.retop; |
a0d0e21e | 3776 | |
a1f49e72 | 3777 | TAINT_NOT; |
54310121 | 3778 | if (gimme == G_VOID) |
3779 | MARK = newsp; | |
3780 | else if (gimme == G_SCALAR) { | |
3781 | MARK = newsp + 1; | |
3782 | if (MARK <= SP) { | |
3783 | if (SvFLAGS(TOPs) & SVs_TEMP) | |
3784 | *MARK = TOPs; | |
3785 | else | |
3786 | *MARK = sv_mortalcopy(TOPs); | |
3787 | } | |
a0d0e21e | 3788 | else { |
54310121 | 3789 | MEXTEND(mark,0); |
3280af22 | 3790 | *MARK = &PL_sv_undef; |
a0d0e21e | 3791 | } |
a7ec2b44 | 3792 | SP = MARK; |
a0d0e21e LW |
3793 | } |
3794 | else { | |
a1f49e72 CS |
3795 | /* in case LEAVE wipes old return values */ |
3796 | for (mark = newsp + 1; mark <= SP; mark++) { | |
3797 | if (!(SvFLAGS(*mark) & SVs_TEMP)) { | |
a0d0e21e | 3798 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3799 | TAINT_NOT; /* Each item is independent */ |
3800 | } | |
3801 | } | |
a0d0e21e | 3802 | } |
3280af22 | 3803 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e | 3804 | |
4fdae800 | 3805 | #ifdef DEBUGGING |
3280af22 | 3806 | assert(CvDEPTH(PL_compcv) == 1); |
4fdae800 | 3807 | #endif |
3280af22 | 3808 | CvDEPTH(PL_compcv) = 0; |
f46d017c | 3809 | lex_end(); |
4fdae800 | 3810 | |
1ce6579f | 3811 | if (optype == OP_REQUIRE && |
924508f0 | 3812 | !(gimme == G_SCALAR ? SvTRUE(*SP) : SP > newsp)) |
54310121 | 3813 | { |
1ce6579f | 3814 | /* Unassume the success we assumed earlier. */ |
901017d6 | 3815 | SV * const nsv = cx->blk_eval.old_namesv; |
b15aece3 | 3816 | (void)hv_delete(GvHVn(PL_incgv), SvPVX_const(nsv), SvCUR(nsv), G_DISCARD); |
be2597df | 3817 | retop = Perl_die(aTHX_ "%"SVf" did not return a true value", SVfARG(nsv)); |
f46d017c GS |
3818 | /* die_where() did LEAVE, or we won't be here */ |
3819 | } | |
3820 | else { | |
3821 | LEAVE; | |
8433848b | 3822 | if (!(save_flags & OPf_SPECIAL)) { |
ab69dbc2 | 3823 | CLEAR_ERRSV(); |
8433848b | 3824 | } |
a0d0e21e | 3825 | } |
a0d0e21e LW |
3826 | |
3827 | RETURNOP(retop); | |
3828 | } | |
3829 | ||
edb2152a NC |
3830 | /* Common code for Perl_call_sv and Perl_fold_constants, put here to keep it |
3831 | close to the related Perl_create_eval_scope. */ | |
3832 | void | |
3833 | Perl_delete_eval_scope(pTHX) | |
a0d0e21e | 3834 | { |
edb2152a NC |
3835 | SV **newsp; |
3836 | PMOP *newpm; | |
3837 | I32 gimme; | |
c09156bb | 3838 | register PERL_CONTEXT *cx; |
edb2152a NC |
3839 | I32 optype; |
3840 | ||
3841 | POPBLOCK(cx,newpm); | |
3842 | POPEVAL(cx); | |
3843 | PL_curpm = newpm; | |
3844 | LEAVE; | |
3845 | PERL_UNUSED_VAR(newsp); | |
3846 | PERL_UNUSED_VAR(gimme); | |
3847 | PERL_UNUSED_VAR(optype); | |
3848 | } | |
a0d0e21e | 3849 | |
edb2152a NC |
3850 | /* Common-ish code salvaged from Perl_call_sv and pp_entertry, because it was |
3851 | also needed by Perl_fold_constants. */ | |
3852 | PERL_CONTEXT * | |
3853 | Perl_create_eval_scope(pTHX_ U32 flags) | |
3854 | { | |
3855 | PERL_CONTEXT *cx; | |
3856 | const I32 gimme = GIMME_V; | |
3857 | ||
a0d0e21e LW |
3858 | ENTER; |
3859 | SAVETMPS; | |
3860 | ||
edb2152a | 3861 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
6b75f042 | 3862 | PUSHEVAL(cx, 0); |
a0d0e21e | 3863 | |
faef0170 | 3864 | PL_in_eval = EVAL_INEVAL; |
edb2152a NC |
3865 | if (flags & G_KEEPERR) |
3866 | PL_in_eval |= EVAL_KEEPERR; | |
ab69dbc2 RGS |
3867 | else |
3868 | CLEAR_ERRSV(); | |
edb2152a NC |
3869 | if (flags & G_FAKINGEVAL) { |
3870 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ | |
3871 | } | |
3872 | return cx; | |
3873 | } | |
3874 | ||
3875 | PP(pp_entertry) | |
3876 | { | |
3877 | dVAR; | |
df528165 | 3878 | PERL_CONTEXT * const cx = create_eval_scope(0); |
edb2152a | 3879 | cx->blk_eval.retop = cLOGOP->op_other->op_next; |
533c011a | 3880 | return DOCATCH(PL_op->op_next); |
a0d0e21e LW |
3881 | } |
3882 | ||
3883 | PP(pp_leavetry) | |
3884 | { | |
27da23d5 | 3885 | dVAR; dSP; |
a0d0e21e LW |
3886 | SV **newsp; |
3887 | PMOP *newpm; | |
3888 | I32 gimme; | |
c09156bb | 3889 | register PERL_CONTEXT *cx; |
a0d0e21e LW |
3890 | I32 optype; |
3891 | ||
3892 | POPBLOCK(cx,newpm); | |
3893 | POPEVAL(cx); | |
9d4ba2ae | 3894 | PERL_UNUSED_VAR(optype); |
a0d0e21e | 3895 | |
a1f49e72 | 3896 | TAINT_NOT; |
54310121 | 3897 | if (gimme == G_VOID) |
3898 | SP = newsp; | |
3899 | else if (gimme == G_SCALAR) { | |
c445ea15 | 3900 | register SV **mark; |
54310121 | 3901 | MARK = newsp + 1; |
3902 | if (MARK <= SP) { | |
3903 | if (SvFLAGS(TOPs) & (SVs_PADTMP|SVs_TEMP)) | |
3904 | *MARK = TOPs; | |
3905 | else | |
3906 | *MARK = sv_mortalcopy(TOPs); | |
3907 | } | |
a0d0e21e | 3908 | else { |
54310121 | 3909 | MEXTEND(mark,0); |
3280af22 | 3910 | *MARK = &PL_sv_undef; |
a0d0e21e LW |
3911 | } |
3912 | SP = MARK; | |
3913 | } | |
3914 | else { | |
a1f49e72 | 3915 | /* in case LEAVE wipes old return values */ |
c445ea15 | 3916 | register SV **mark; |
a1f49e72 CS |
3917 | for (mark = newsp + 1; mark <= SP; mark++) { |
3918 | if (!(SvFLAGS(*mark) & (SVs_PADTMP|SVs_TEMP))) { | |
a0d0e21e | 3919 | *mark = sv_mortalcopy(*mark); |
a1f49e72 CS |
3920 | TAINT_NOT; /* Each item is independent */ |
3921 | } | |
3922 | } | |
a0d0e21e | 3923 | } |
3280af22 | 3924 | PL_curpm = newpm; /* Don't pop $1 et al till now */ |
a0d0e21e LW |
3925 | |
3926 | LEAVE; | |
ab69dbc2 | 3927 | CLEAR_ERRSV(); |
745cf2ff | 3928 | RETURN; |
a0d0e21e LW |
3929 | } |
3930 | ||
0d863452 RH |
3931 | PP(pp_entergiven) |
3932 | { | |
3933 | dVAR; dSP; | |
3934 | register PERL_CONTEXT *cx; | |
3935 | const I32 gimme = GIMME_V; | |
3936 | ||
3937 | ENTER; | |
3938 | SAVETMPS; | |
3939 | ||
bb74b0ee | 3940 | sv_setsv(PAD_SV(PL_op->op_targ), POPs); |
0d863452 RH |
3941 | |
3942 | PUSHBLOCK(cx, CXt_GIVEN, SP); | |
3943 | PUSHGIVEN(cx); | |
3944 | ||
3945 | RETURN; | |
3946 | } | |
3947 | ||
3948 | PP(pp_leavegiven) | |
3949 | { | |
3950 | dVAR; dSP; | |
3951 | register PERL_CONTEXT *cx; | |
3952 | I32 gimme; | |
3953 | SV **newsp; | |
3954 | PMOP *newpm; | |
96a5add6 | 3955 | PERL_UNUSED_CONTEXT; |
0d863452 RH |
3956 | |
3957 | POPBLOCK(cx,newpm); | |
3958 | assert(CxTYPE(cx) == CXt_GIVEN); | |
0d863452 RH |
3959 | |
3960 | SP = newsp; | |
3961 | PUTBACK; | |
3962 | ||
3963 | PL_curpm = newpm; /* pop $1 et al */ | |
3964 | ||
3965 | LEAVE; | |
3966 | ||
3967 | return NORMAL; | |
3968 | } | |
3969 | ||
3970 | /* Helper routines used by pp_smartmatch */ | |
4136a0f7 | 3971 | STATIC PMOP * |
84679df5 | 3972 | S_make_matcher(pTHX_ REGEXP *re) |
0d863452 | 3973 | { |
97aff369 | 3974 | dVAR; |
0d863452 | 3975 | PMOP *matcher = (PMOP *) newPMOP(OP_MATCH, OPf_WANT_SCALAR | OPf_STACKED); |
7918f24d NC |
3976 | |
3977 | PERL_ARGS_ASSERT_MAKE_MATCHER; | |
3978 | ||
d6106309 | 3979 | PM_SETRE(matcher, ReREFCNT_inc(re)); |
7918f24d | 3980 | |
0d863452 RH |
3981 | SAVEFREEOP((OP *) matcher); |
3982 | ENTER; SAVETMPS; | |
3983 | SAVEOP(); | |
3984 | return matcher; | |
3985 | } | |
3986 | ||
4136a0f7 | 3987 | STATIC bool |
0d863452 RH |
3988 | S_matcher_matches_sv(pTHX_ PMOP *matcher, SV *sv) |
3989 | { | |
97aff369 | 3990 | dVAR; |
0d863452 | 3991 | dSP; |
7918f24d NC |
3992 | |
3993 | PERL_ARGS_ASSERT_MATCHER_MATCHES_SV; | |
0d863452 RH |
3994 | |
3995 | PL_op = (OP *) matcher; | |
3996 | XPUSHs(sv); | |
3997 | PUTBACK; | |
3998 | (void) pp_match(); | |
3999 | SPAGAIN; | |
4000 | return (SvTRUEx(POPs)); | |
4001 | } | |
4002 | ||
4136a0f7 | 4003 | STATIC void |
0d863452 RH |
4004 | S_destroy_matcher(pTHX_ PMOP *matcher) |
4005 | { | |
97aff369 | 4006 | dVAR; |
7918f24d NC |
4007 | |
4008 | PERL_ARGS_ASSERT_DESTROY_MATCHER; | |
0d863452 | 4009 | PERL_UNUSED_ARG(matcher); |
7918f24d | 4010 | |
0d863452 RH |
4011 | FREETMPS; |
4012 | LEAVE; | |
4013 | } | |
4014 | ||
4015 | /* Do a smart match */ | |
4016 | PP(pp_smartmatch) | |
4017 | { | |
d7c0d282 | 4018 | DEBUG_M(Perl_deb(aTHX_ "Starting smart match resolution\n")); |
a0714e2c | 4019 | return do_smartmatch(NULL, NULL); |
0d863452 RH |
4020 | } |
4021 | ||
4b021f5f RGS |
4022 | /* This version of do_smartmatch() implements the |
4023 | * table of smart matches that is found in perlsyn. | |
0d863452 | 4024 | */ |
4136a0f7 | 4025 | STATIC OP * |
0d863452 RH |
4026 | S_do_smartmatch(pTHX_ HV *seen_this, HV *seen_other) |
4027 | { | |
97aff369 | 4028 | dVAR; |
0d863452 RH |
4029 | dSP; |
4030 | ||
41e726ac | 4031 | bool object_on_left = FALSE; |
0d863452 RH |
4032 | SV *e = TOPs; /* e is for 'expression' */ |
4033 | SV *d = TOPm1s; /* d is for 'default', as in PL_defgv */ | |
a566f585 | 4034 | |
2c9d2554 | 4035 | /* First of all, handle overload magic of the rightmost argument */ |
6d743019 | 4036 | if (SvAMAGIC(e)) { |
d7c0d282 DM |
4037 | SV * tmpsv; |
4038 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
4039 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
4040 | ||
4041 | tmpsv = amagic_call(d, e, smart_amg, 0); | |
7c41e62e RGS |
4042 | if (tmpsv) { |
4043 | SPAGAIN; | |
4044 | (void)POPs; | |
4045 | SETs(tmpsv); | |
4046 | RETURN; | |
4047 | } | |
d7c0d282 | 4048 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; continuing...\n")); |
7c41e62e | 4049 | } |
62ec5f58 | 4050 | |
0d863452 RH |
4051 | SP -= 2; /* Pop the values */ |
4052 | ||
4053 | /* Take care only to invoke mg_get() once for each argument. | |
4054 | * Currently we do this by copying the SV if it's magical. */ | |
4055 | if (d) { | |
4056 | if (SvGMAGICAL(d)) | |
4057 | d = sv_mortalcopy(d); | |
4058 | } | |
4059 | else | |
4060 | d = &PL_sv_undef; | |
4061 | ||
4062 | assert(e); | |
4063 | if (SvGMAGICAL(e)) | |
4064 | e = sv_mortalcopy(e); | |
4065 | ||
b0138e99 | 4066 | /* ~~ undef */ |
62ec5f58 | 4067 | if (!SvOK(e)) { |
d7c0d282 | 4068 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-undef\n")); |
62ec5f58 | 4069 | if (SvOK(d)) |
33570f8b RGS |
4070 | RETPUSHNO; |
4071 | else | |
62ec5f58 | 4072 | RETPUSHYES; |
33570f8b | 4073 | } |
e67b97bd | 4074 | |
d7c0d282 DM |
4075 | if (sv_isobject(e) && (SvTYPE(SvRV(e)) != SVt_REGEXP)) { |
4076 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Object\n")); | |
62ec5f58 | 4077 | Perl_croak(aTHX_ "Smart matching a non-overloaded object breaks encapsulation"); |
d7c0d282 | 4078 | } |
41e726ac RGS |
4079 | if (sv_isobject(d) && (SvTYPE(SvRV(d)) != SVt_REGEXP)) |
4080 | object_on_left = TRUE; | |
62ec5f58 | 4081 | |
b0138e99 | 4082 | /* ~~ sub */ |
a4a197da | 4083 | if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVCV) { |
0d863452 | 4084 | I32 c; |
41e726ac RGS |
4085 | if (object_on_left) { |
4086 | goto sm_any_sub; /* Treat objects like scalars */ | |
4087 | } | |
4088 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
a4a197da RGS |
4089 | /* Test sub truth for each key */ |
4090 | HE *he; | |
4091 | bool andedresults = TRUE; | |
4092 | HV *hv = (HV*) SvRV(d); | |
168ff818 | 4093 | I32 numkeys = hv_iterinit(hv); |
d7c0d282 | 4094 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-CodeRef\n")); |
168ff818 | 4095 | if (numkeys == 0) |
07edf497 | 4096 | RETPUSHYES; |
a4a197da | 4097 | while ( (he = hv_iternext(hv)) ) { |
d7c0d282 | 4098 | DEBUG_M(Perl_deb(aTHX_ " testing hash key...\n")); |
a4a197da RGS |
4099 | ENTER; |
4100 | SAVETMPS; | |
4101 | PUSHMARK(SP); | |
4102 | PUSHs(hv_iterkeysv(he)); | |
4103 | PUTBACK; | |
4104 | c = call_sv(e, G_SCALAR); | |
4105 | SPAGAIN; | |
4106 | if (c == 0) | |
4107 | andedresults = FALSE; | |
4108 | else | |
4109 | andedresults = SvTRUEx(POPs) && andedresults; | |
4110 | FREETMPS; | |
4111 | LEAVE; | |
4112 | } | |
4113 | if (andedresults) | |
4114 | RETPUSHYES; | |
4115 | else | |
4116 | RETPUSHNO; | |
4117 | } | |
4118 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4119 | /* Test sub truth for each element */ | |
4120 | I32 i; | |
4121 | bool andedresults = TRUE; | |
4122 | AV *av = (AV*) SvRV(d); | |
4123 | const I32 len = av_len(av); | |
d7c0d282 | 4124 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-CodeRef\n")); |
168ff818 | 4125 | if (len == -1) |
07edf497 | 4126 | RETPUSHYES; |
a4a197da RGS |
4127 | for (i = 0; i <= len; ++i) { |
4128 | SV * const * const svp = av_fetch(av, i, FALSE); | |
d7c0d282 | 4129 | DEBUG_M(Perl_deb(aTHX_ " testing array element...\n")); |
a4a197da RGS |
4130 | ENTER; |
4131 | SAVETMPS; | |
4132 | PUSHMARK(SP); | |
4133 | if (svp) | |
4134 | PUSHs(*svp); | |
4135 | PUTBACK; | |
4136 | c = call_sv(e, G_SCALAR); | |
4137 | SPAGAIN; | |
4138 | if (c == 0) | |
4139 | andedresults = FALSE; | |
4140 | else | |
4141 | andedresults = SvTRUEx(POPs) && andedresults; | |
4142 | FREETMPS; | |
4143 | LEAVE; | |
4144 | } | |
4145 | if (andedresults) | |
4146 | RETPUSHYES; | |
4147 | else | |
4148 | RETPUSHNO; | |
4149 | } | |
4150 | else { | |
41e726ac | 4151 | sm_any_sub: |
d7c0d282 | 4152 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-CodeRef\n")); |
a4a197da RGS |
4153 | ENTER; |
4154 | SAVETMPS; | |
4155 | PUSHMARK(SP); | |
4156 | PUSHs(d); | |
4157 | PUTBACK; | |
4158 | c = call_sv(e, G_SCALAR); | |
4159 | SPAGAIN; | |
4160 | if (c == 0) | |
4161 | PUSHs(&PL_sv_no); | |
4162 | else if (SvTEMP(TOPs)) | |
4163 | SvREFCNT_inc_void(TOPs); | |
4164 | FREETMPS; | |
4165 | LEAVE; | |
4166 | RETURN; | |
4167 | } | |
0d863452 | 4168 | } |
b0138e99 | 4169 | /* ~~ %hash */ |
61a621c6 | 4170 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVHV) { |
41e726ac RGS |
4171 | if (object_on_left) { |
4172 | goto sm_any_hash; /* Treat objects like scalars */ | |
4173 | } | |
4174 | else if (!SvOK(d)) { | |
d7c0d282 | 4175 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash ($a undef)\n")); |
61a621c6 RGS |
4176 | RETPUSHNO; |
4177 | } | |
4178 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
0d863452 RH |
4179 | /* Check that the key-sets are identical */ |
4180 | HE *he; | |
61a621c6 | 4181 | HV *other_hv = MUTABLE_HV(SvRV(d)); |
0d863452 RH |
4182 | bool tied = FALSE; |
4183 | bool other_tied = FALSE; | |
4184 | U32 this_key_count = 0, | |
4185 | other_key_count = 0; | |
33ed63a2 | 4186 | HV *hv = MUTABLE_HV(SvRV(e)); |
d7c0d282 DM |
4187 | |
4188 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Hash\n")); | |
0d863452 | 4189 | /* Tied hashes don't know how many keys they have. */ |
33ed63a2 | 4190 | if (SvTIED_mg((SV*)hv, PERL_MAGIC_tied)) { |
0d863452 RH |
4191 | tied = TRUE; |
4192 | } | |
ad64d0ec | 4193 | else if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) { |
c445ea15 | 4194 | HV * const temp = other_hv; |
33ed63a2 RGS |
4195 | other_hv = hv; |
4196 | hv = temp; | |
0d863452 RH |
4197 | tied = TRUE; |
4198 | } | |
ad64d0ec | 4199 | if (SvTIED_mg((const SV *)other_hv, PERL_MAGIC_tied)) |
0d863452 RH |
4200 | other_tied = TRUE; |
4201 | ||
33ed63a2 | 4202 | if (!tied && HvUSEDKEYS((const HV *) hv) != HvUSEDKEYS(other_hv)) |
0d863452 RH |
4203 | RETPUSHNO; |
4204 | ||
4205 | /* The hashes have the same number of keys, so it suffices | |
4206 | to check that one is a subset of the other. */ | |
33ed63a2 RGS |
4207 | (void) hv_iterinit(hv); |
4208 | while ( (he = hv_iternext(hv)) ) { | |
b15feb55 | 4209 | SV *key = hv_iterkeysv(he); |
d7c0d282 DM |
4210 | |
4211 | DEBUG_M(Perl_deb(aTHX_ " comparing hash key...\n")); | |
0d863452 RH |
4212 | ++ this_key_count; |
4213 | ||
b15feb55 | 4214 | if(!hv_exists_ent(other_hv, key, 0)) { |
33ed63a2 | 4215 | (void) hv_iterinit(hv); /* reset iterator */ |
0d863452 RH |
4216 | RETPUSHNO; |
4217 | } | |
4218 | } | |
4219 | ||
4220 | if (other_tied) { | |
4221 | (void) hv_iterinit(other_hv); | |
4222 | while ( hv_iternext(other_hv) ) | |
4223 | ++other_key_count; | |
4224 | } | |
4225 | else | |
4226 | other_key_count = HvUSEDKEYS(other_hv); | |
4227 | ||
4228 | if (this_key_count != other_key_count) | |
4229 | RETPUSHNO; | |
4230 | else | |
4231 | RETPUSHYES; | |
4232 | } | |
61a621c6 RGS |
4233 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { |
4234 | AV * const other_av = MUTABLE_AV(SvRV(d)); | |
c445ea15 | 4235 | const I32 other_len = av_len(other_av) + 1; |
0d863452 | 4236 | I32 i; |
33ed63a2 | 4237 | HV *hv = MUTABLE_HV(SvRV(e)); |
71b0fb34 | 4238 | |
d7c0d282 | 4239 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Hash\n")); |
71b0fb34 | 4240 | for (i = 0; i < other_len; ++i) { |
c445ea15 | 4241 | SV ** const svp = av_fetch(other_av, i, FALSE); |
d7c0d282 | 4242 | DEBUG_M(Perl_deb(aTHX_ " checking for key existence...\n")); |
71b0fb34 | 4243 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4244 | if (hv_exists_ent(hv, *svp, 0)) |
71b0fb34 DK |
4245 | RETPUSHYES; |
4246 | } | |
0d863452 | 4247 | } |
71b0fb34 | 4248 | RETPUSHNO; |
0d863452 | 4249 | } |
a566f585 | 4250 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4251 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Hash\n")); |
ea0c2dbd RGS |
4252 | sm_regex_hash: |
4253 | { | |
4254 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4255 | HE *he; | |
4256 | HV *hv = MUTABLE_HV(SvRV(e)); | |
4257 | ||
4258 | (void) hv_iterinit(hv); | |
4259 | while ( (he = hv_iternext(hv)) ) { | |
d7c0d282 | 4260 | DEBUG_M(Perl_deb(aTHX_ " testing key against pattern...\n")); |
ea0c2dbd RGS |
4261 | if (matcher_matches_sv(matcher, hv_iterkeysv(he))) { |
4262 | (void) hv_iterinit(hv); | |
4263 | destroy_matcher(matcher); | |
4264 | RETPUSHYES; | |
4265 | } | |
0d863452 | 4266 | } |
ea0c2dbd RGS |
4267 | destroy_matcher(matcher); |
4268 | RETPUSHNO; | |
0d863452 | 4269 | } |
0d863452 RH |
4270 | } |
4271 | else { | |
41e726ac | 4272 | sm_any_hash: |
d7c0d282 | 4273 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Hash\n")); |
61a621c6 | 4274 | if (hv_exists_ent(MUTABLE_HV(SvRV(e)), d, 0)) |
0d863452 RH |
4275 | RETPUSHYES; |
4276 | else | |
4277 | RETPUSHNO; | |
4278 | } | |
4279 | } | |
b0138e99 RGS |
4280 | /* ~~ @array */ |
4281 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_PVAV) { | |
41e726ac RGS |
4282 | if (object_on_left) { |
4283 | goto sm_any_array; /* Treat objects like scalars */ | |
4284 | } | |
4285 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { | |
b0138e99 RGS |
4286 | AV * const other_av = MUTABLE_AV(SvRV(e)); |
4287 | const I32 other_len = av_len(other_av) + 1; | |
4288 | I32 i; | |
4289 | ||
d7c0d282 | 4290 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Array\n")); |
b0138e99 RGS |
4291 | for (i = 0; i < other_len; ++i) { |
4292 | SV ** const svp = av_fetch(other_av, i, FALSE); | |
d7c0d282 DM |
4293 | |
4294 | DEBUG_M(Perl_deb(aTHX_ " testing for key existence...\n")); | |
b0138e99 | 4295 | if (svp) { /* ??? When can this not happen? */ |
b15feb55 | 4296 | if (hv_exists_ent(MUTABLE_HV(SvRV(d)), *svp, 0)) |
b0138e99 RGS |
4297 | RETPUSHYES; |
4298 | } | |
4299 | } | |
4300 | RETPUSHNO; | |
4301 | } | |
4302 | if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4303 | AV *other_av = MUTABLE_AV(SvRV(d)); | |
d7c0d282 | 4304 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Array\n")); |
b0138e99 | 4305 | if (av_len(MUTABLE_AV(SvRV(e))) != av_len(other_av)) |
0d863452 RH |
4306 | RETPUSHNO; |
4307 | else { | |
4308 | I32 i; | |
c445ea15 | 4309 | const I32 other_len = av_len(other_av); |
0d863452 | 4310 | |
a0714e2c | 4311 | if (NULL == seen_this) { |
0d863452 | 4312 | seen_this = newHV(); |
ad64d0ec | 4313 | (void) sv_2mortal(MUTABLE_SV(seen_this)); |
0d863452 | 4314 | } |
a0714e2c | 4315 | if (NULL == seen_other) { |
0d863452 | 4316 | seen_this = newHV(); |
ad64d0ec | 4317 | (void) sv_2mortal(MUTABLE_SV(seen_other)); |
0d863452 RH |
4318 | } |
4319 | for(i = 0; i <= other_len; ++i) { | |
b0138e99 | 4320 | SV * const * const this_elem = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
c445ea15 AL |
4321 | SV * const * const other_elem = av_fetch(other_av, i, FALSE); |
4322 | ||
0d863452 RH |
4323 | if (!this_elem || !other_elem) { |
4324 | if (this_elem || other_elem) | |
4325 | RETPUSHNO; | |
4326 | } | |
365c4e3d RGS |
4327 | else if (hv_exists_ent(seen_this, |
4328 | sv_2mortal(newSViv(PTR2IV(*this_elem))), 0) || | |
4329 | hv_exists_ent(seen_other, | |
4330 | sv_2mortal(newSViv(PTR2IV(*other_elem))), 0)) | |
0d863452 RH |
4331 | { |
4332 | if (*this_elem != *other_elem) | |
4333 | RETPUSHNO; | |
4334 | } | |
4335 | else { | |
04fe65b0 RGS |
4336 | (void)hv_store_ent(seen_this, |
4337 | sv_2mortal(newSViv(PTR2IV(*this_elem))), | |
4338 | &PL_sv_undef, 0); | |
4339 | (void)hv_store_ent(seen_other, | |
4340 | sv_2mortal(newSViv(PTR2IV(*other_elem))), | |
4341 | &PL_sv_undef, 0); | |
0d863452 | 4342 | PUSHs(*other_elem); |
a566f585 | 4343 | PUSHs(*this_elem); |
0d863452 RH |
4344 | |
4345 | PUTBACK; | |
d7c0d282 | 4346 | DEBUG_M(Perl_deb(aTHX_ " recursively comparing array element...\n")); |
0d863452 RH |
4347 | (void) do_smartmatch(seen_this, seen_other); |
4348 | SPAGAIN; | |
d7c0d282 | 4349 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
0d863452 RH |
4350 | |
4351 | if (!SvTRUEx(POPs)) | |
4352 | RETPUSHNO; | |
4353 | } | |
4354 | } | |
4355 | RETPUSHYES; | |
4356 | } | |
4357 | } | |
a566f585 | 4358 | else if (SvROK(d) && SvTYPE(SvRV(d)) == SVt_REGEXP) { |
d7c0d282 | 4359 | DEBUG_M(Perl_deb(aTHX_ " applying rule Regex-Array\n")); |
ea0c2dbd RGS |
4360 | sm_regex_array: |
4361 | { | |
4362 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(d)); | |
4363 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
4364 | I32 i; | |
0d863452 | 4365 | |
ea0c2dbd RGS |
4366 | for(i = 0; i <= this_len; ++i) { |
4367 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
d7c0d282 | 4368 | DEBUG_M(Perl_deb(aTHX_ " testing element against pattern...\n")); |
ea0c2dbd RGS |
4369 | if (svp && matcher_matches_sv(matcher, *svp)) { |
4370 | destroy_matcher(matcher); | |
4371 | RETPUSHYES; | |
4372 | } | |
0d863452 | 4373 | } |
ea0c2dbd RGS |
4374 | destroy_matcher(matcher); |
4375 | RETPUSHNO; | |
0d863452 | 4376 | } |
0d863452 | 4377 | } |
015eb7b9 RGS |
4378 | else if (!SvOK(d)) { |
4379 | /* undef ~~ array */ | |
4380 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 RH |
4381 | I32 i; |
4382 | ||
d7c0d282 | 4383 | DEBUG_M(Perl_deb(aTHX_ " applying rule Undef-Array\n")); |
015eb7b9 | 4384 | for (i = 0; i <= this_len; ++i) { |
b0138e99 | 4385 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); |
d7c0d282 | 4386 | DEBUG_M(Perl_deb(aTHX_ " testing for undef element...\n")); |
015eb7b9 | 4387 | if (!svp || !SvOK(*svp)) |
0d863452 RH |
4388 | RETPUSHYES; |
4389 | } | |
4390 | RETPUSHNO; | |
4391 | } | |
015eb7b9 | 4392 | else { |
41e726ac RGS |
4393 | sm_any_array: |
4394 | { | |
4395 | I32 i; | |
4396 | const I32 this_len = av_len(MUTABLE_AV(SvRV(e))); | |
0d863452 | 4397 | |
d7c0d282 | 4398 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Array\n")); |
41e726ac RGS |
4399 | for (i = 0; i <= this_len; ++i) { |
4400 | SV * const * const svp = av_fetch(MUTABLE_AV(SvRV(e)), i, FALSE); | |
4401 | if (!svp) | |
4402 | continue; | |
015eb7b9 | 4403 | |
41e726ac RGS |
4404 | PUSHs(d); |
4405 | PUSHs(*svp); | |
4406 | PUTBACK; | |
4407 | /* infinite recursion isn't supposed to happen here */ | |
d7c0d282 | 4408 | DEBUG_M(Perl_deb(aTHX_ " recursively testing array element...\n")); |
41e726ac RGS |
4409 | (void) do_smartmatch(NULL, NULL); |
4410 | SPAGAIN; | |
d7c0d282 | 4411 | DEBUG_M(Perl_deb(aTHX_ " recursion finished\n")); |
41e726ac RGS |
4412 | if (SvTRUEx(POPs)) |
4413 | RETPUSHYES; | |
4414 | } | |
4415 | RETPUSHNO; | |
0d863452 | 4416 | } |
0d863452 RH |
4417 | } |
4418 | } | |
b0138e99 | 4419 | /* ~~ qr// */ |
a566f585 | 4420 | else if (SvROK(e) && SvTYPE(SvRV(e)) == SVt_REGEXP) { |
ea0c2dbd RGS |
4421 | if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVHV) { |
4422 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4423 | DEBUG_M(Perl_deb(aTHX_ " applying rule Hash-Regex\n")); |
ea0c2dbd RGS |
4424 | goto sm_regex_hash; |
4425 | } | |
4426 | else if (!object_on_left && SvROK(d) && SvTYPE(SvRV(d)) == SVt_PVAV) { | |
4427 | SV *t = d; d = e; e = t; | |
d7c0d282 | 4428 | DEBUG_M(Perl_deb(aTHX_ " applying rule Array-Regex\n")); |
ea0c2dbd RGS |
4429 | goto sm_regex_array; |
4430 | } | |
4431 | else { | |
4432 | PMOP * const matcher = make_matcher((REGEXP*) SvRV(e)); | |
0d863452 | 4433 | |
d7c0d282 | 4434 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Regex\n")); |
ea0c2dbd RGS |
4435 | PUTBACK; |
4436 | PUSHs(matcher_matches_sv(matcher, d) | |
4437 | ? &PL_sv_yes | |
4438 | : &PL_sv_no); | |
4439 | destroy_matcher(matcher); | |
4440 | RETURN; | |
4441 | } | |
0d863452 | 4442 | } |
b0138e99 | 4443 | /* ~~ scalar */ |
2c9d2554 RGS |
4444 | /* See if there is overload magic on left */ |
4445 | else if (object_on_left && SvAMAGIC(d)) { | |
4446 | SV *tmpsv; | |
d7c0d282 DM |
4447 | DEBUG_M(Perl_deb(aTHX_ " applying rule Object-Any\n")); |
4448 | DEBUG_M(Perl_deb(aTHX_ " attempting overload\n")); | |
2c9d2554 RGS |
4449 | PUSHs(d); PUSHs(e); |
4450 | PUTBACK; | |
4451 | tmpsv = amagic_call(d, e, smart_amg, AMGf_noright); | |
4452 | if (tmpsv) { | |
4453 | SPAGAIN; | |
4454 | (void)POPs; | |
4455 | SETs(tmpsv); | |
4456 | RETURN; | |
4457 | } | |
4458 | SP -= 2; | |
d7c0d282 | 4459 | DEBUG_M(Perl_deb(aTHX_ " failed to run overload method; falling back...\n")); |
2c9d2554 RGS |
4460 | goto sm_any_scalar; |
4461 | } | |
fb51372e RGS |
4462 | else if (!SvOK(d)) { |
4463 | /* undef ~~ scalar ; we already know that the scalar is SvOK */ | |
d7c0d282 | 4464 | DEBUG_M(Perl_deb(aTHX_ " applying rule undef-Any\n")); |
fb51372e RGS |
4465 | RETPUSHNO; |
4466 | } | |
2c9d2554 RGS |
4467 | else |
4468 | sm_any_scalar: | |
4469 | if (SvNIOK(e) || (SvPOK(e) && looks_like_number(e) && SvNIOK(d))) { | |
d7c0d282 DM |
4470 | DEBUG_M(if (SvNIOK(e)) |
4471 | Perl_deb(aTHX_ " applying rule Any-Num\n"); | |
4472 | else | |
4473 | Perl_deb(aTHX_ " applying rule Num-numish\n"); | |
4474 | ); | |
33ed63a2 | 4475 | /* numeric comparison */ |
0d863452 RH |
4476 | PUSHs(d); PUSHs(e); |
4477 | PUTBACK; | |
a98fe34d | 4478 | if (CopHINTS_get(PL_curcop) & HINT_INTEGER) |
0d863452 RH |
4479 | (void) pp_i_eq(); |
4480 | else | |
4481 | (void) pp_eq(); | |
4482 | SPAGAIN; | |
4483 | if (SvTRUEx(POPs)) | |
4484 | RETPUSHYES; | |
4485 | else | |
4486 | RETPUSHNO; | |
4487 | } | |
4488 | ||
4489 | /* As a last resort, use string comparison */ | |
d7c0d282 | 4490 | DEBUG_M(Perl_deb(aTHX_ " applying rule Any-Any\n")); |
0d863452 RH |
4491 | PUSHs(d); PUSHs(e); |
4492 | PUTBACK; | |
4493 | return pp_seq(); | |
4494 | } | |
4495 | ||
4496 | PP(pp_enterwhen) | |
4497 | { | |
4498 | dVAR; dSP; | |
4499 | register PERL_CONTEXT *cx; | |
4500 | const I32 gimme = GIMME_V; | |
4501 | ||
4502 | /* This is essentially an optimization: if the match | |
4503 | fails, we don't want to push a context and then | |
4504 | pop it again right away, so we skip straight | |
4505 | to the op that follows the leavewhen. | |
4506 | */ | |
4507 | if ((0 == (PL_op->op_flags & OPf_SPECIAL)) && !SvTRUEx(POPs)) | |
4508 | return cLOGOP->op_other->op_next; | |
4509 | ||
4510 | ENTER; | |
4511 | SAVETMPS; | |
4512 | ||
4513 | PUSHBLOCK(cx, CXt_WHEN, SP); | |
4514 | PUSHWHEN(cx); | |
4515 | ||
4516 | RETURN; | |
4517 | } | |
4518 | ||
4519 | PP(pp_leavewhen) | |
4520 | { | |
4521 | dVAR; dSP; | |
4522 | register PERL_CONTEXT *cx; | |
4523 | I32 gimme; | |
4524 | SV **newsp; | |
4525 | PMOP *newpm; | |
4526 | ||
4527 | POPBLOCK(cx,newpm); | |
4528 | assert(CxTYPE(cx) == CXt_WHEN); | |
4529 | ||
4530 | SP = newsp; | |
4531 | PUTBACK; | |
4532 | ||
4533 | PL_curpm = newpm; /* pop $1 et al */ | |
4534 | ||
4535 | LEAVE; | |
4536 | return NORMAL; | |
4537 | } | |
4538 | ||
4539 | PP(pp_continue) | |
4540 | { | |
4541 | dVAR; | |
4542 | I32 cxix; | |
4543 | register PERL_CONTEXT *cx; | |
4544 | I32 inner; | |
4545 | ||
4546 | cxix = dopoptowhen(cxstack_ix); | |
4547 | if (cxix < 0) | |
4548 | DIE(aTHX_ "Can't \"continue\" outside a when block"); | |
4549 | if (cxix < cxstack_ix) | |
4550 | dounwind(cxix); | |
4551 | ||
4552 | /* clear off anything above the scope we're re-entering */ | |
4553 | inner = PL_scopestack_ix; | |
4554 | TOPBLOCK(cx); | |
4555 | if (PL_scopestack_ix < inner) | |
4556 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4557 | PL_curcop = cx->blk_oldcop; | |
4558 | return cx->blk_givwhen.leave_op; | |
4559 | } | |
4560 | ||
4561 | PP(pp_break) | |
4562 | { | |
4563 | dVAR; | |
4564 | I32 cxix; | |
4565 | register PERL_CONTEXT *cx; | |
4566 | I32 inner; | |
4567 | ||
4568 | cxix = dopoptogiven(cxstack_ix); | |
4569 | if (cxix < 0) { | |
4570 | if (PL_op->op_flags & OPf_SPECIAL) | |
4571 | DIE(aTHX_ "Can't use when() outside a topicalizer"); | |
4572 | else | |
4573 | DIE(aTHX_ "Can't \"break\" outside a given block"); | |
4574 | } | |
4575 | if (CxFOREACH(&cxstack[cxix]) && (0 == (PL_op->op_flags & OPf_SPECIAL))) | |
4576 | DIE(aTHX_ "Can't \"break\" in a loop topicalizer"); | |
4577 | ||
4578 | if (cxix < cxstack_ix) | |
4579 | dounwind(cxix); | |
4580 | ||
4581 | /* clear off anything above the scope we're re-entering */ | |
4582 | inner = PL_scopestack_ix; | |
4583 | TOPBLOCK(cx); | |
4584 | if (PL_scopestack_ix < inner) | |
4585 | leave_scope(PL_scopestack[PL_scopestack_ix]); | |
4586 | PL_curcop = cx->blk_oldcop; | |
4587 | ||
4588 | if (CxFOREACH(cx)) | |
022eaa24 | 4589 | return CX_LOOP_NEXTOP_GET(cx); |
0d863452 RH |
4590 | else |
4591 | return cx->blk_givwhen.leave_op; | |
4592 | } | |
4593 | ||
a1b95068 | 4594 | STATIC OP * |
cea2e8a9 | 4595 | S_doparseform(pTHX_ SV *sv) |
a0d0e21e LW |
4596 | { |
4597 | STRLEN len; | |
4598 | register char *s = SvPV_force(sv, len); | |
c445ea15 AL |
4599 | register char * const send = s + len; |
4600 | register char *base = NULL; | |
a0d0e21e | 4601 | register I32 skipspaces = 0; |
9c5ffd7c JH |
4602 | bool noblank = FALSE; |
4603 | bool repeat = FALSE; | |
a0d0e21e | 4604 | bool postspace = FALSE; |
dea28490 JJ |
4605 | U32 *fops; |
4606 | register U32 *fpc; | |
cbbf8932 | 4607 | U32 *linepc = NULL; |
a0d0e21e LW |
4608 | register I32 arg; |
4609 | bool ischop; | |
a1b95068 WL |
4610 | bool unchopnum = FALSE; |
4611 | int maxops = 12; /* FF_LINEMARK + FF_END + 10 (\0 without preceding \n) */ | |
a0d0e21e | 4612 | |
7918f24d NC |
4613 | PERL_ARGS_ASSERT_DOPARSEFORM; |
4614 | ||
55497cff | 4615 | if (len == 0) |
cea2e8a9 | 4616 | Perl_croak(aTHX_ "Null picture in formline"); |
ac27b0f5 | 4617 | |
815f25c6 DM |
4618 | /* estimate the buffer size needed */ |
4619 | for (base = s; s <= send; s++) { | |
a1b95068 | 4620 | if (*s == '\n' || *s == '@' || *s == '^') |
815f25c6 DM |
4621 | maxops += 10; |
4622 | } | |
4623 | s = base; | |
c445ea15 | 4624 | base = NULL; |
815f25c6 | 4625 | |
a02a5408 | 4626 | Newx(fops, maxops, U32); |
a0d0e21e LW |
4627 | fpc = fops; |
4628 | ||
4629 | if (s < send) { | |
4630 | linepc = fpc; | |
4631 | *fpc++ = FF_LINEMARK; | |
4632 | noblank = repeat = FALSE; | |
4633 | base = s; | |
4634 | } | |
4635 | ||
4636 | while (s <= send) { | |
4637 | switch (*s++) { | |
4638 | default: | |
4639 | skipspaces = 0; | |
4640 | continue; | |
4641 | ||
4642 | case '~': | |
4643 | if (*s == '~') { | |
4644 | repeat = TRUE; | |
4645 | *s = ' '; | |
4646 | } | |
4647 | noblank = TRUE; | |
4648 | s[-1] = ' '; | |
4649 | /* FALL THROUGH */ | |
4650 | case ' ': case '\t': | |
4651 | skipspaces++; | |
4652 | continue; | |
a1b95068 WL |
4653 | case 0: |
4654 | if (s < send) { | |
4655 | skipspaces = 0; | |
4656 | continue; | |
4657 | } /* else FALL THROUGH */ | |
4658 | case '\n': | |
a0d0e21e LW |
4659 | arg = s - base; |
4660 | skipspaces++; | |
4661 | arg -= skipspaces; | |
4662 | if (arg) { | |
5f05dabc | 4663 | if (postspace) |
a0d0e21e | 4664 | *fpc++ = FF_SPACE; |
a0d0e21e | 4665 | *fpc++ = FF_LITERAL; |
eb160463 | 4666 | *fpc++ = (U16)arg; |
a0d0e21e | 4667 | } |
5f05dabc | 4668 | postspace = FALSE; |
a0d0e21e LW |
4669 | if (s <= send) |
4670 | skipspaces--; | |
4671 | if (skipspaces) { | |
4672 | *fpc++ = FF_SKIP; | |
eb160463 | 4673 | *fpc++ = (U16)skipspaces; |
a0d0e21e LW |
4674 | } |
4675 | skipspaces = 0; | |
4676 | if (s <= send) | |
4677 | *fpc++ = FF_NEWLINE; | |
4678 | if (noblank) { | |
4679 | *fpc++ = FF_BLANK; | |
4680 | if (repeat) | |
4681 | arg = fpc - linepc + 1; | |
4682 | else | |
4683 | arg = 0; | |
eb160463 | 4684 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4685 | } |
4686 | if (s < send) { | |
4687 | linepc = fpc; | |
4688 | *fpc++ = FF_LINEMARK; | |
4689 | noblank = repeat = FALSE; | |
4690 | base = s; | |
4691 | } | |
4692 | else | |
4693 | s++; | |
4694 | continue; | |
4695 | ||
4696 | case '@': | |
4697 | case '^': | |
4698 | ischop = s[-1] == '^'; | |
4699 | ||
4700 | if (postspace) { | |
4701 | *fpc++ = FF_SPACE; | |
4702 | postspace = FALSE; | |
4703 | } | |
4704 | arg = (s - base) - 1; | |
4705 | if (arg) { | |
4706 | *fpc++ = FF_LITERAL; | |
eb160463 | 4707 | *fpc++ = (U16)arg; |
a0d0e21e LW |
4708 | } |
4709 | ||
4710 | base = s - 1; | |
4711 | *fpc++ = FF_FETCH; | |
4712 | if (*s == '*') { | |
4713 | s++; | |
a1b95068 WL |
4714 | *fpc++ = 2; /* skip the @* or ^* */ |
4715 | if (ischop) { | |
4716 | *fpc++ = FF_LINESNGL; | |
4717 | *fpc++ = FF_CHOP; | |
4718 | } else | |
4719 | *fpc++ = FF_LINEGLOB; | |
a0d0e21e LW |
4720 | } |
4721 | else if (*s == '#' || (*s == '.' && s[1] == '#')) { | |
4722 | arg = ischop ? 512 : 0; | |
4723 | base = s - 1; | |
4724 | while (*s == '#') | |
4725 | s++; | |
4726 | if (*s == '.') { | |
06b5626a | 4727 | const char * const f = ++s; |
a0d0e21e LW |
4728 | while (*s == '#') |
4729 | s++; | |
4730 | arg |= 256 + (s - f); | |
4731 | } | |
4732 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4733 | *fpc++ = FF_DECIMAL; | |
eb160463 | 4734 | *fpc++ = (U16)arg; |
a1b95068 | 4735 | unchopnum |= ! ischop; |
784707d5 JP |
4736 | } |
4737 | else if (*s == '0' && s[1] == '#') { /* Zero padded decimals */ | |
4738 | arg = ischop ? 512 : 0; | |
4739 | base = s - 1; | |
4740 | s++; /* skip the '0' first */ | |
4741 | while (*s == '#') | |
4742 | s++; | |
4743 | if (*s == '.') { | |
06b5626a | 4744 | const char * const f = ++s; |
784707d5 JP |
4745 | while (*s == '#') |
4746 | s++; | |
4747 | arg |= 256 + (s - f); | |
4748 | } | |
4749 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4750 | *fpc++ = FF_0DECIMAL; | |
eb160463 | 4751 | *fpc++ = (U16)arg; |
a1b95068 | 4752 | unchopnum |= ! ischop; |
a0d0e21e LW |
4753 | } |
4754 | else { | |
4755 | I32 prespace = 0; | |
4756 | bool ismore = FALSE; | |
4757 | ||
4758 | if (*s == '>') { | |
4759 | while (*++s == '>') ; | |
4760 | prespace = FF_SPACE; | |
4761 | } | |
4762 | else if (*s == '|') { | |
4763 | while (*++s == '|') ; | |
4764 | prespace = FF_HALFSPACE; | |
4765 | postspace = TRUE; | |
4766 | } | |
4767 | else { | |
4768 | if (*s == '<') | |
4769 | while (*++s == '<') ; | |
4770 | postspace = TRUE; | |
4771 | } | |
4772 | if (*s == '.' && s[1] == '.' && s[2] == '.') { | |
4773 | s += 3; | |
4774 | ismore = TRUE; | |
4775 | } | |
4776 | *fpc++ = s - base; /* fieldsize for FETCH */ | |
4777 | ||
4778 | *fpc++ = ischop ? FF_CHECKCHOP : FF_CHECKNL; | |
4779 | ||
4780 | if (prespace) | |
eb160463 | 4781 | *fpc++ = (U16)prespace; |
a0d0e21e LW |
4782 | *fpc++ = FF_ITEM; |
4783 | if (ismore) | |
4784 | *fpc++ = FF_MORE; | |
4785 | if (ischop) | |
4786 | *fpc++ = FF_CHOP; | |
4787 | } | |
4788 | base = s; | |
4789 | skipspaces = 0; | |
4790 | continue; | |
4791 | } | |
4792 | } | |
4793 | *fpc++ = FF_END; | |
4794 | ||
815f25c6 | 4795 | assert (fpc <= fops + maxops); /* ensure our buffer estimate was valid */ |
a0d0e21e LW |
4796 | arg = fpc - fops; |
4797 | { /* need to jump to the next word */ | |
4798 | int z; | |
4799 | z = WORD_ALIGN - SvCUR(sv) % WORD_ALIGN; | |
dea28490 | 4800 | SvGROW(sv, SvCUR(sv) + z + arg * sizeof(U32) + 4); |
a0d0e21e LW |
4801 | s = SvPVX(sv) + SvCUR(sv) + z; |
4802 | } | |
dea28490 | 4803 | Copy(fops, s, arg, U32); |
a0d0e21e | 4804 | Safefree(fops); |
c445ea15 | 4805 | sv_magic(sv, NULL, PERL_MAGIC_fm, NULL, 0); |
a0d0e21e | 4806 | SvCOMPILED_on(sv); |
a1b95068 | 4807 | |
bfed75c6 | 4808 | if (unchopnum && repeat) |
a1b95068 WL |
4809 | DIE(aTHX_ "Repeated format line will never terminate (~~ and @#)"); |
4810 | return 0; | |
4811 | } | |
4812 | ||
4813 | ||
4814 | STATIC bool | |
4815 | S_num_overflow(NV value, I32 fldsize, I32 frcsize) | |
4816 | { | |
4817 | /* Can value be printed in fldsize chars, using %*.*f ? */ | |
4818 | NV pwr = 1; | |
4819 | NV eps = 0.5; | |
4820 | bool res = FALSE; | |
4821 | int intsize = fldsize - (value < 0 ? 1 : 0); | |
4822 | ||
4823 | if (frcsize & 256) | |
4824 | intsize--; | |
4825 | frcsize &= 255; | |
4826 | intsize -= frcsize; | |
4827 | ||
4828 | while (intsize--) pwr *= 10.0; | |
4829 | while (frcsize--) eps /= 10.0; | |
4830 | ||
4831 | if( value >= 0 ){ | |
4832 | if (value + eps >= pwr) | |
4833 | res = TRUE; | |
4834 | } else { | |
4835 | if (value - eps <= -pwr) | |
4836 | res = TRUE; | |
4837 | } | |
4838 | return res; | |
a0d0e21e | 4839 | } |
4e35701f | 4840 | |
bbed91b5 | 4841 | static I32 |
0bd48802 | 4842 | S_run_user_filter(pTHX_ int idx, SV *buf_sv, int maxlen) |
bbed91b5 | 4843 | { |
27da23d5 | 4844 | dVAR; |
0bd48802 | 4845 | SV * const datasv = FILTER_DATA(idx); |
504618e9 | 4846 | const int filter_has_file = IoLINES(datasv); |
ad64d0ec NC |
4847 | SV * const filter_state = MUTABLE_SV(IoTOP_GV(datasv)); |
4848 | SV * const filter_sub = MUTABLE_SV(IoBOTTOM_GV(datasv)); | |
941a98a0 | 4849 | int status = 0; |
ec0b63d7 | 4850 | SV *upstream; |
941a98a0 | 4851 | STRLEN got_len; |
95b63a38 | 4852 | const char *got_p = NULL; |
941a98a0 | 4853 | const char *prune_from = NULL; |
34113e50 | 4854 | bool read_from_cache = FALSE; |
bb7a0f54 MHM |
4855 | STRLEN umaxlen; |
4856 | ||
7918f24d NC |
4857 | PERL_ARGS_ASSERT_RUN_USER_FILTER; |
4858 | ||
bb7a0f54 MHM |
4859 | assert(maxlen >= 0); |
4860 | umaxlen = maxlen; | |
5675696b | 4861 | |
bbed91b5 KF |
4862 | /* I was having segfault trouble under Linux 2.2.5 after a |
4863 | parse error occured. (Had to hack around it with a test | |
13765c85 | 4864 | for PL_parser->error_count == 0.) Solaris doesn't segfault -- |
bbed91b5 KF |
4865 | not sure where the trouble is yet. XXX */ |
4866 | ||
4464f08e NC |
4867 | { |
4868 | SV *const cache = datasv; | |
937b367d NC |
4869 | if (SvOK(cache)) { |
4870 | STRLEN cache_len; | |
4871 | const char *cache_p = SvPV(cache, cache_len); | |
941a98a0 NC |
4872 | STRLEN take = 0; |
4873 | ||
bb7a0f54 | 4874 | if (umaxlen) { |
941a98a0 NC |
4875 | /* Running in block mode and we have some cached data already. |
4876 | */ | |
bb7a0f54 | 4877 | if (cache_len >= umaxlen) { |
941a98a0 NC |
4878 | /* In fact, so much data we don't even need to call |
4879 | filter_read. */ | |
bb7a0f54 | 4880 | take = umaxlen; |
941a98a0 NC |
4881 | } |
4882 | } else { | |
10edeb5d JH |
4883 | const char *const first_nl = |
4884 | (const char *)memchr(cache_p, '\n', cache_len); | |
941a98a0 NC |
4885 | if (first_nl) { |
4886 | take = first_nl + 1 - cache_p; | |
4887 | } | |
4888 | } | |
4889 | if (take) { | |
4890 | sv_catpvn(buf_sv, cache_p, take); | |
4891 | sv_chop(cache, cache_p + take); | |
937b367d NC |
4892 | /* Definately not EOF */ |
4893 | return 1; | |
4894 | } | |
941a98a0 | 4895 | |
937b367d | 4896 | sv_catsv(buf_sv, cache); |
bb7a0f54 MHM |
4897 | if (umaxlen) { |
4898 | umaxlen -= cache_len; | |
941a98a0 | 4899 | } |
937b367d | 4900 | SvOK_off(cache); |
34113e50 | 4901 | read_from_cache = TRUE; |
937b367d NC |
4902 | } |
4903 | } | |
ec0b63d7 | 4904 | |
34113e50 NC |
4905 | /* Filter API says that the filter appends to the contents of the buffer. |
4906 | Usually the buffer is "", so the details don't matter. But if it's not, | |
4907 | then clearly what it contains is already filtered by this filter, so we | |
4908 | don't want to pass it in a second time. | |
4909 | I'm going to use a mortal in case the upstream filter croaks. */ | |
ec0b63d7 NC |
4910 | upstream = ((SvOK(buf_sv) && sv_len(buf_sv)) || SvGMAGICAL(buf_sv)) |
4911 | ? sv_newmortal() : buf_sv; | |
4912 | SvUPGRADE(upstream, SVt_PV); | |
937b367d | 4913 | |
bbed91b5 | 4914 | if (filter_has_file) { |
67e70b33 | 4915 | status = FILTER_READ(idx+1, upstream, 0); |
bbed91b5 KF |
4916 | } |
4917 | ||
34113e50 | 4918 | if (filter_sub && status >= 0) { |
39644a26 | 4919 | dSP; |
bbed91b5 KF |
4920 | int count; |
4921 | ||
4922 | ENTER; | |
4923 | SAVE_DEFSV; | |
4924 | SAVETMPS; | |
4925 | EXTEND(SP, 2); | |
4926 | ||
414bf5ae | 4927 | DEFSV_set(upstream); |
bbed91b5 | 4928 | PUSHMARK(SP); |
6e449a3a | 4929 | mPUSHi(0); |
bbed91b5 KF |
4930 | if (filter_state) { |
4931 | PUSHs(filter_state); | |
4932 | } | |
4933 | PUTBACK; | |
4934 | count = call_sv(filter_sub, G_SCALAR); | |
4935 | SPAGAIN; | |
4936 | ||
4937 | if (count > 0) { | |
4938 | SV *out = POPs; | |
4939 | if (SvOK(out)) { | |
941a98a0 | 4940 | status = SvIV(out); |
bbed91b5 KF |
4941 | } |
4942 | } | |
4943 | ||
4944 | PUTBACK; | |
4945 | FREETMPS; | |
4946 | LEAVE; | |
4947 | } | |
4948 | ||
941a98a0 NC |
4949 | if(SvOK(upstream)) { |
4950 | got_p = SvPV(upstream, got_len); | |
bb7a0f54 MHM |
4951 | if (umaxlen) { |
4952 | if (got_len > umaxlen) { | |
4953 | prune_from = got_p + umaxlen; | |
937b367d | 4954 | } |
941a98a0 | 4955 | } else { |
10edeb5d JH |
4956 | const char *const first_nl = |
4957 | (const char *)memchr(got_p, '\n', got_len); | |
941a98a0 NC |
4958 | if (first_nl && first_nl + 1 < got_p + got_len) { |
4959 | /* There's a second line here... */ | |
4960 | prune_from = first_nl + 1; | |
937b367d | 4961 | } |
937b367d NC |
4962 | } |
4963 | } | |
941a98a0 NC |
4964 | if (prune_from) { |
4965 | /* Oh. Too long. Stuff some in our cache. */ | |
4966 | STRLEN cached_len = got_p + got_len - prune_from; | |
4464f08e | 4967 | SV *const cache = datasv; |
941a98a0 | 4968 | |
4464f08e | 4969 | if (SvOK(cache)) { |
941a98a0 NC |
4970 | /* Cache should be empty. */ |
4971 | assert(!SvCUR(cache)); | |
4972 | } | |
4973 | ||
4974 | sv_setpvn(cache, prune_from, cached_len); | |
4975 | /* If you ask for block mode, you may well split UTF-8 characters. | |
4976 | "If it breaks, you get to keep both parts" | |
4977 | (Your code is broken if you don't put them back together again | |
4978 | before something notices.) */ | |
4979 | if (SvUTF8(upstream)) { | |
4980 | SvUTF8_on(cache); | |
4981 | } | |
4982 | SvCUR_set(upstream, got_len - cached_len); | |
4983 | /* Can't yet be EOF */ | |
4984 | if (status == 0) | |
4985 | status = 1; | |
4986 | } | |
937b367d | 4987 | |
34113e50 NC |
4988 | /* If they are at EOF but buf_sv has something in it, then they may never |
4989 | have touched the SV upstream, so it may be undefined. If we naively | |
4990 | concatenate it then we get a warning about use of uninitialised value. | |
4991 | */ | |
4992 | if (upstream != buf_sv && (SvOK(upstream) || SvGMAGICAL(upstream))) { | |
937b367d NC |
4993 | sv_catsv(buf_sv, upstream); |
4994 | } | |
4995 | ||
941a98a0 | 4996 | if (status <= 0) { |
bbed91b5 | 4997 | IoLINES(datasv) = 0; |
bbed91b5 KF |
4998 | if (filter_state) { |
4999 | SvREFCNT_dec(filter_state); | |
a0714e2c | 5000 | IoTOP_GV(datasv) = NULL; |
bbed91b5 KF |
5001 | } |
5002 | if (filter_sub) { | |
5003 | SvREFCNT_dec(filter_sub); | |
a0714e2c | 5004 | IoBOTTOM_GV(datasv) = NULL; |
bbed91b5 | 5005 | } |
0bd48802 | 5006 | filter_del(S_run_user_filter); |
bbed91b5 | 5007 | } |
34113e50 NC |
5008 | if (status == 0 && read_from_cache) { |
5009 | /* If we read some data from the cache (and by getting here it implies | |
5010 | that we emptied the cache) then we aren't yet at EOF, and mustn't | |
5011 | report that to our caller. */ | |
5012 | return 1; | |
5013 | } | |
941a98a0 | 5014 | return status; |
bbed91b5 | 5015 | } |
84d4ea48 | 5016 | |
be4b629d CN |
5017 | /* perhaps someone can come up with a better name for |
5018 | this? it is not really "absolute", per se ... */ | |
cf42f822 | 5019 | static bool |
5f66b61c | 5020 | S_path_is_absolute(const char *name) |
be4b629d | 5021 | { |
7918f24d NC |
5022 | PERL_ARGS_ASSERT_PATH_IS_ABSOLUTE; |
5023 | ||
be4b629d | 5024 | if (PERL_FILE_IS_ABSOLUTE(name) |
3f66cd94 | 5025 | #ifdef WIN32 |
36f064bc CL |
5026 | || (*name == '.' && ((name[1] == '/' || |
5027 | (name[1] == '.' && name[2] == '/')) | |
5028 | || (name[1] == '\\' || | |
5029 | ( name[1] == '.' && name[2] == '\\'))) | |
5030 | ) | |
5031 | #else | |
be4b629d | 5032 | || (*name == '.' && (name[1] == '/' || |
0bd48802 | 5033 | (name[1] == '.' && name[2] == '/'))) |
36f064bc | 5034 | #endif |
0bd48802 | 5035 | ) |
be4b629d CN |
5036 | { |
5037 | return TRUE; | |
5038 | } | |
5039 | else | |
5040 | return FALSE; | |
5041 | } | |
241d1a3b NC |
5042 | |
5043 | /* | |
5044 | * Local variables: | |
5045 | * c-indentation-style: bsd | |
5046 | * c-basic-offset: 4 | |
5047 | * indent-tabs-mode: t | |
5048 | * End: | |
5049 | * | |
37442d52 RGS |
5050 | * ex: set ts=8 sts=4 sw=4 noet: |
5051 | */ |