Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* pp.c |
79072805 | 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 | |
79072805 | 5 | * |
a0d0e21e LW |
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. | |
79072805 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
13 | * to discover, and no knowing what you'll find round a corner. | |
14 | * And Elves, sir!' --Samwise Gamgee | |
15 | * | |
16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
a0d0e21e | 17 | */ |
79072805 | 18 | |
166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
20 | * opcodes that make up a perl program. A typical pp function expects to | |
21 | * find its arguments on the stack, and usually pushes its results onto | |
22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
23 | * a pointer to the relevant pp_foo() function. | |
24 | */ | |
25 | ||
79072805 | 26 | #include "EXTERN.h" |
864dbfa3 | 27 | #define PERL_IN_PP_C |
79072805 | 28 | #include "perl.h" |
77bc9082 | 29 | #include "keywords.h" |
79072805 | 30 | |
a4af207c JH |
31 | #include "reentr.h" |
32 | ||
dfe9444c AD |
33 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
34 | it, since pid_t is an integral type. | |
35 | --AD 2/20/1998 | |
36 | */ | |
37 | #ifdef NEED_GETPID_PROTO | |
38 | extern Pid_t getpid (void); | |
8ac85365 NIS |
39 | #endif |
40 | ||
0630166f SP |
41 | /* |
42 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
43 | * This switches them over to IEEE. | |
44 | */ | |
45 | #if defined(LIBM_LIB_VERSION) | |
46 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
47 | #endif | |
48 | ||
13017935 SM |
49 | /* variations on pp_null */ |
50 | ||
93a17b20 LW |
51 | PP(pp_stub) |
52 | { | |
97aff369 | 53 | dVAR; |
39644a26 | 54 | dSP; |
54310121 | 55 | if (GIMME_V == G_SCALAR) |
3280af22 | 56 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
57 | RETURN; |
58 | } | |
59 | ||
79072805 LW |
60 | /* Pushy stuff. */ |
61 | ||
93a17b20 LW |
62 | PP(pp_padav) |
63 | { | |
97aff369 | 64 | dVAR; dSP; dTARGET; |
13017935 | 65 | I32 gimme; |
e190e9b4 | 66 | assert(SvTYPE(TARG) == SVt_PVAV); |
533c011a | 67 | if (PL_op->op_private & OPpLVAL_INTRO) |
a5911867 RGS |
68 | if (!(PL_op->op_private & OPpPAD_STATE)) |
69 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
85e6fe83 | 70 | EXTEND(SP, 1); |
533c011a | 71 | if (PL_op->op_flags & OPf_REF) { |
85e6fe83 | 72 | PUSHs(TARG); |
93a17b20 | 73 | RETURN; |
40c94d11 FC |
74 | } else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
75 | const I32 flags = is_lvalue_sub(); | |
76 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
78f9721b SM |
77 | if (GIMME == G_SCALAR) |
78 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
79 | PUSHs(TARG); | |
80 | RETURN; | |
40c94d11 | 81 | } |
85e6fe83 | 82 | } |
13017935 SM |
83 | gimme = GIMME_V; |
84 | if (gimme == G_ARRAY) { | |
502c6561 | 85 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 | 86 | EXTEND(SP, maxarg); |
93965878 NIS |
87 | if (SvMAGICAL(TARG)) { |
88 | U32 i; | |
eb160463 | 89 | for (i=0; i < (U32)maxarg; i++) { |
502c6561 | 90 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
3280af22 | 91 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
92 | } |
93 | } | |
94 | else { | |
502c6561 | 95 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
93965878 | 96 | } |
85e6fe83 LW |
97 | SP += maxarg; |
98 | } | |
13017935 | 99 | else if (gimme == G_SCALAR) { |
1b6737cc | 100 | SV* const sv = sv_newmortal(); |
502c6561 | 101 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 LW |
102 | sv_setiv(sv, maxarg); |
103 | PUSHs(sv); | |
104 | } | |
105 | RETURN; | |
93a17b20 LW |
106 | } |
107 | ||
108 | PP(pp_padhv) | |
109 | { | |
97aff369 | 110 | dVAR; dSP; dTARGET; |
54310121 | 111 | I32 gimme; |
112 | ||
e190e9b4 | 113 | assert(SvTYPE(TARG) == SVt_PVHV); |
93a17b20 | 114 | XPUSHs(TARG); |
533c011a | 115 | if (PL_op->op_private & OPpLVAL_INTRO) |
a5911867 RGS |
116 | if (!(PL_op->op_private & OPpPAD_STATE)) |
117 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); | |
533c011a | 118 | if (PL_op->op_flags & OPf_REF) |
93a17b20 | 119 | RETURN; |
40c94d11 FC |
120 | else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
121 | const I32 flags = is_lvalue_sub(); | |
122 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
78f9721b SM |
123 | if (GIMME == G_SCALAR) |
124 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
125 | RETURN; | |
40c94d11 | 126 | } |
78f9721b | 127 | } |
54310121 | 128 | gimme = GIMME_V; |
129 | if (gimme == G_ARRAY) { | |
981b7185 | 130 | RETURNOP(Perl_do_kv(aTHX)); |
85e6fe83 | 131 | } |
54310121 | 132 | else if (gimme == G_SCALAR) { |
85fbaab2 | 133 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
85e6fe83 | 134 | SETs(sv); |
85e6fe83 | 135 | } |
54310121 | 136 | RETURN; |
93a17b20 LW |
137 | } |
138 | ||
79072805 LW |
139 | /* Translations. */ |
140 | ||
4bdf8368 | 141 | static const char S_no_symref_sv[] = |
def89bff NC |
142 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; |
143 | ||
6f7909da FC |
144 | /* In some cases this function inspects PL_op. If this function is called |
145 | for new op types, more bool parameters may need to be added in place of | |
146 | the checks. | |
147 | ||
148 | When noinit is true, the absence of a gv will cause a retval of undef. | |
149 | This is unrelated to the cv-to-gv assignment case. | |
8ec5e241 | 150 | |
6f7909da FC |
151 | Make sure to use SPAGAIN after calling this. |
152 | */ | |
153 | ||
154 | static SV * | |
155 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
156 | const bool noinit) | |
157 | { | |
14f0f125 | 158 | dVAR; |
f64c9ac5 | 159 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 160 | if (SvROK(sv)) { |
93d7320b DM |
161 | if (SvAMAGIC(sv)) { |
162 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 163 | } |
e4a1664f | 164 | wasref: |
ed6116ce | 165 | sv = SvRV(sv); |
b1dadf13 | 166 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 167 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
52a6327b | 168 | gv_init(gv, 0, "$__ANONIO__", 11, 0); |
a45c7426 | 169 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 170 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 171 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 172 | } |
6e592b3a | 173 | else if (!isGV_with_GP(sv)) |
6f7909da | 174 | return (SV *)Perl_die(aTHX_ "Not a GLOB reference"); |
79072805 LW |
175 | } |
176 | else { | |
6e592b3a | 177 | if (!isGV_with_GP(sv)) { |
f132ae69 | 178 | if (!SvOK(sv)) { |
b13b2135 | 179 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 180 | * NI-S 1999/05/07 |
b13b2135 | 181 | */ |
f132ae69 | 182 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 183 | GV *gv; |
ce74145d FC |
184 | if (SvREADONLY(sv)) |
185 | Perl_croak_no_modify(aTHX); | |
2c8ac474 | 186 | if (cUNOP->op_targ) { |
0bd48802 | 187 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
159b6efe | 188 | gv = MUTABLE_GV(newSV(0)); |
6b10071b | 189 | gv_init_sv(gv, CopSTASH(PL_curcop), namesv, 0); |
2c8ac474 GS |
190 | } |
191 | else { | |
0bd48802 | 192 | const char * const name = CopSTASHPV(PL_curcop); |
6b10071b BF |
193 | gv = newGVgen_flags(name, |
194 | HvNAMEUTF8(CopSTASH(PL_curcop)) ? SVf_UTF8 : 0 ); | |
1d8d4d2a | 195 | } |
43230e26 | 196 | prepare_SV_for_RV(sv); |
ad64d0ec | 197 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 198 | SvROK_on(sv); |
1d8d4d2a | 199 | SvSETMAGIC(sv); |
853846ea | 200 | goto wasref; |
2c8ac474 | 201 | } |
6f7909da FC |
202 | if (PL_op->op_flags & OPf_REF || strict) |
203 | return (SV *)Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
599cee73 | 204 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 205 | report_uninit(sv); |
6f7909da | 206 | return &PL_sv_undef; |
a0d0e21e | 207 | } |
6f7909da | 208 | if (noinit) |
35cd451c | 209 | { |
77cb3b01 FC |
210 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
211 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 212 | )))) |
6f7909da | 213 | return &PL_sv_undef; |
35cd451c GS |
214 | } |
215 | else { | |
6f7909da FC |
216 | if (strict) |
217 | return | |
218 | (SV *)Perl_die(aTHX_ | |
219 | S_no_symref_sv, | |
220 | sv, | |
221 | (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), | |
222 | "a symbol" | |
223 | ); | |
e26df76a NC |
224 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
225 | == OPpDONT_INIT_GV) { | |
226 | /* We are the target of a coderef assignment. Return | |
227 | the scalar unchanged, and let pp_sasssign deal with | |
228 | things. */ | |
6f7909da | 229 | return sv; |
e26df76a | 230 | } |
77cb3b01 | 231 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 232 | } |
2acc3314 | 233 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 234 | SvFAKE_off(sv); |
93a17b20 | 235 | } |
79072805 | 236 | } |
96293f45 | 237 | if (SvFAKE(sv)) { |
2acc3314 | 238 | SV *newsv = sv_newmortal(); |
5cf4b255 | 239 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 240 | SvFAKE_off(newsv); |
d8906c05 | 241 | sv = newsv; |
2acc3314 | 242 | } |
6f7909da FC |
243 | return sv; |
244 | } | |
245 | ||
246 | PP(pp_rv2gv) | |
247 | { | |
248 | dVAR; dSP; dTOPss; | |
249 | ||
250 | sv = S_rv2gv(aTHX_ | |
251 | sv, PL_op->op_private & OPpDEREF, | |
252 | PL_op->op_private & HINT_STRICT_REFS, | |
253 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
254 | || PL_op->op_type == OP_READLINE | |
255 | ); | |
256 | SPAGAIN; | |
d8906c05 FC |
257 | if (PL_op->op_private & OPpLVAL_INTRO) |
258 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
259 | SETs(sv); | |
79072805 LW |
260 | RETURN; |
261 | } | |
262 | ||
dc3c76f8 NC |
263 | /* Helper function for pp_rv2sv and pp_rv2av */ |
264 | GV * | |
fe9845cc RB |
265 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
266 | const svtype type, SV ***spp) | |
dc3c76f8 NC |
267 | { |
268 | dVAR; | |
269 | GV *gv; | |
270 | ||
7918f24d NC |
271 | PERL_ARGS_ASSERT_SOFTREF2XV; |
272 | ||
dc3c76f8 NC |
273 | if (PL_op->op_private & HINT_STRICT_REFS) { |
274 | if (SvOK(sv)) | |
10b53e54 | 275 | Perl_die(aTHX_ S_no_symref_sv, sv, (SvPOK(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
dc3c76f8 NC |
276 | else |
277 | Perl_die(aTHX_ PL_no_usym, what); | |
278 | } | |
279 | if (!SvOK(sv)) { | |
fd1d9b5c FC |
280 | if ( |
281 | PL_op->op_flags & OPf_REF && | |
282 | PL_op->op_next->op_type != OP_BOOLKEYS | |
283 | ) | |
dc3c76f8 NC |
284 | Perl_die(aTHX_ PL_no_usym, what); |
285 | if (ckWARN(WARN_UNINITIALIZED)) | |
286 | report_uninit(sv); | |
287 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
288 | (*spp)--; | |
289 | return NULL; | |
290 | } | |
291 | **spp = &PL_sv_undef; | |
292 | return NULL; | |
293 | } | |
294 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
295 | !(PL_op->op_flags & OPf_MOD)) | |
296 | { | |
77cb3b01 | 297 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
298 | { |
299 | **spp = &PL_sv_undef; | |
300 | return NULL; | |
301 | } | |
302 | } | |
303 | else { | |
77cb3b01 | 304 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
305 | } |
306 | return gv; | |
307 | } | |
308 | ||
79072805 LW |
309 | PP(pp_rv2sv) |
310 | { | |
97aff369 | 311 | dVAR; dSP; dTOPss; |
c445ea15 | 312 | GV *gv = NULL; |
79072805 | 313 | |
9026059d | 314 | SvGETMAGIC(sv); |
ed6116ce | 315 | if (SvROK(sv)) { |
93d7320b DM |
316 | if (SvAMAGIC(sv)) { |
317 | sv = amagic_deref_call(sv, to_sv_amg); | |
318 | SPAGAIN; | |
319 | } | |
f5284f61 | 320 | |
ed6116ce | 321 | sv = SvRV(sv); |
79072805 LW |
322 | switch (SvTYPE(sv)) { |
323 | case SVt_PVAV: | |
324 | case SVt_PVHV: | |
325 | case SVt_PVCV: | |
cbae9b9f YST |
326 | case SVt_PVFM: |
327 | case SVt_PVIO: | |
cea2e8a9 | 328 | DIE(aTHX_ "Not a SCALAR reference"); |
42d0e0b7 | 329 | default: NOOP; |
79072805 LW |
330 | } |
331 | } | |
332 | else { | |
159b6efe | 333 | gv = MUTABLE_GV(sv); |
748a9306 | 334 | |
6e592b3a | 335 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
336 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
337 | if (!gv) | |
338 | RETURN; | |
463ee0b2 | 339 | } |
29c711a3 | 340 | sv = GvSVn(gv); |
a0d0e21e | 341 | } |
533c011a | 342 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
343 | if (PL_op->op_private & OPpLVAL_INTRO) { |
344 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 345 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
346 | else if (gv) |
347 | sv = save_scalar(gv); | |
348 | else | |
f1f66076 | 349 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 350 | } |
533c011a | 351 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 352 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 353 | } |
a0d0e21e | 354 | SETs(sv); |
79072805 LW |
355 | RETURN; |
356 | } | |
357 | ||
358 | PP(pp_av2arylen) | |
359 | { | |
97aff369 | 360 | dVAR; dSP; |
502c6561 | 361 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
362 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
363 | if (lvalue) { | |
364 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
365 | if (!*sv) { | |
366 | *sv = newSV_type(SVt_PVMG); | |
367 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
368 | } | |
369 | SETs(*sv); | |
370 | } else { | |
e1dccc0d | 371 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 372 | } |
79072805 LW |
373 | RETURN; |
374 | } | |
375 | ||
a0d0e21e LW |
376 | PP(pp_pos) |
377 | { | |
2154eca7 | 378 | dVAR; dSP; dPOPss; |
8ec5e241 | 379 | |
78f9721b | 380 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
16eb5365 FC |
381 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
382 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); | |
383 | LvTYPE(ret) = '.'; | |
384 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
2154eca7 | 385 | PUSHs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
386 | RETURN; |
387 | } | |
388 | else { | |
a0d0e21e | 389 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
1b6737cc | 390 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
565764a8 | 391 | if (mg && mg->mg_len >= 0) { |
2154eca7 | 392 | dTARGET; |
a0ed51b3 | 393 | I32 i = mg->mg_len; |
7e2040f0 | 394 | if (DO_UTF8(sv)) |
a0ed51b3 | 395 | sv_pos_b2u(sv, &i); |
e1dccc0d | 396 | PUSHi(i); |
a0d0e21e LW |
397 | RETURN; |
398 | } | |
399 | } | |
400 | RETPUSHUNDEF; | |
401 | } | |
402 | } | |
403 | ||
79072805 LW |
404 | PP(pp_rv2cv) |
405 | { | |
97aff369 | 406 | dVAR; dSP; |
79072805 | 407 | GV *gv; |
1eced8f8 | 408 | HV *stash_unused; |
c445ea15 | 409 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 410 | ? GV_ADDMG |
c445ea15 AL |
411 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) |
412 | ? GV_ADD|GV_NOEXPAND | |
413 | : GV_ADD; | |
4633a7c4 LW |
414 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
415 | /* (But not in defined().) */ | |
e26df76a | 416 | |
1eced8f8 | 417 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
07055b4c CS |
418 | if (cv) { |
419 | if (CvCLONE(cv)) | |
ad64d0ec | 420 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
d32f2495 | 421 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
f5e29650 | 422 | if (gv && GvCV(gv) == cv && (gv = gv_autoload_pvn(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), GvNAMEUTF8(gv) ? SVf_UTF8 : 0))) |
d32f2495 SC |
423 | cv = GvCV(gv); |
424 | if (!CvLVALUE(cv)) | |
425 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
426 | } | |
07055b4c | 427 | } |
e26df76a | 428 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
ea726b52 | 429 | cv = MUTABLE_CV(gv); |
e26df76a | 430 | } |
07055b4c | 431 | else |
ea726b52 | 432 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 433 | SETs(MUTABLE_SV(cv)); |
79072805 LW |
434 | RETURN; |
435 | } | |
436 | ||
c07a80fd | 437 | PP(pp_prototype) |
438 | { | |
97aff369 | 439 | dVAR; dSP; |
c07a80fd | 440 | CV *cv; |
441 | HV *stash; | |
442 | GV *gv; | |
fabdb6c0 | 443 | SV *ret = &PL_sv_undef; |
c07a80fd | 444 | |
b6c543e3 | 445 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 446 | const char * s = SvPVX_const(TOPs); |
b6c543e3 | 447 | if (strnEQ(s, "CORE::", 6)) { |
be1b855b | 448 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
b66130dd FC |
449 | if (!code || code == -KEY_CORE) |
450 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); | |
451 | if (code < 0) { /* Overridable. */ | |
452 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); | |
453 | if (sv) ret = sv; | |
454 | } | |
b8c38f0a | 455 | goto set; |
b6c543e3 IZ |
456 | } |
457 | } | |
f2c0649b | 458 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 459 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
460 | ret = newSVpvn_flags( |
461 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
462 | ); | |
b6c543e3 | 463 | set: |
c07a80fd | 464 | SETs(ret); |
465 | RETURN; | |
466 | } | |
467 | ||
a0d0e21e LW |
468 | PP(pp_anoncode) |
469 | { | |
97aff369 | 470 | dVAR; dSP; |
ea726b52 | 471 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 472 | if (CvCLONE(cv)) |
ad64d0ec | 473 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 474 | EXTEND(SP,1); |
ad64d0ec | 475 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
476 | RETURN; |
477 | } | |
478 | ||
479 | PP(pp_srefgen) | |
79072805 | 480 | { |
97aff369 | 481 | dVAR; dSP; |
71be2cbc | 482 | *SP = refto(*SP); |
79072805 | 483 | RETURN; |
8ec5e241 | 484 | } |
a0d0e21e LW |
485 | |
486 | PP(pp_refgen) | |
487 | { | |
97aff369 | 488 | dVAR; dSP; dMARK; |
a0d0e21e | 489 | if (GIMME != G_ARRAY) { |
5f0b1d4e GS |
490 | if (++MARK <= SP) |
491 | *MARK = *SP; | |
492 | else | |
3280af22 | 493 | *MARK = &PL_sv_undef; |
5f0b1d4e GS |
494 | *MARK = refto(*MARK); |
495 | SP = MARK; | |
496 | RETURN; | |
a0d0e21e | 497 | } |
bbce6d69 | 498 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 499 | while (++MARK <= SP) |
500 | *MARK = refto(*MARK); | |
a0d0e21e | 501 | RETURN; |
79072805 LW |
502 | } |
503 | ||
76e3520e | 504 | STATIC SV* |
cea2e8a9 | 505 | S_refto(pTHX_ SV *sv) |
71be2cbc | 506 | { |
97aff369 | 507 | dVAR; |
71be2cbc | 508 | SV* rv; |
509 | ||
7918f24d NC |
510 | PERL_ARGS_ASSERT_REFTO; |
511 | ||
71be2cbc | 512 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
513 | if (LvTARGLEN(sv)) | |
68dc0745 | 514 | vivify_defelem(sv); |
515 | if (!(sv = LvTARG(sv))) | |
3280af22 | 516 | sv = &PL_sv_undef; |
0dd88869 | 517 | else |
b37c2d43 | 518 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 519 | } |
d8b46c1b | 520 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
521 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
522 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 523 | SvTEMP_off(sv); |
b37c2d43 | 524 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 525 | } |
f2933f5f DM |
526 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
527 | sv = newSVsv(sv); | |
71be2cbc | 528 | else { |
529 | SvTEMP_off(sv); | |
b37c2d43 | 530 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 531 | } |
532 | rv = sv_newmortal(); | |
4df7f6af | 533 | sv_upgrade(rv, SVt_IV); |
b162af07 | 534 | SvRV_set(rv, sv); |
71be2cbc | 535 | SvROK_on(rv); |
536 | return rv; | |
537 | } | |
538 | ||
79072805 LW |
539 | PP(pp_ref) |
540 | { | |
97aff369 | 541 | dVAR; dSP; dTARGET; |
1b6737cc | 542 | SV * const sv = POPs; |
f12c7020 | 543 | |
5b295bef RD |
544 | if (sv) |
545 | SvGETMAGIC(sv); | |
f12c7020 | 546 | |
a0d0e21e | 547 | if (!sv || !SvROK(sv)) |
4633a7c4 | 548 | RETPUSHNO; |
79072805 | 549 | |
a15456de BF |
550 | (void)sv_ref(TARG,SvRV(sv),TRUE); |
551 | PUSHTARG; | |
79072805 LW |
552 | RETURN; |
553 | } | |
554 | ||
555 | PP(pp_bless) | |
556 | { | |
97aff369 | 557 | dVAR; dSP; |
463ee0b2 | 558 | HV *stash; |
79072805 | 559 | |
463ee0b2 | 560 | if (MAXARG == 1) |
c2f922f1 | 561 | curstash: |
11faa288 | 562 | stash = CopSTASH(PL_curcop); |
7b8d334a | 563 | else { |
1b6737cc | 564 | SV * const ssv = POPs; |
7b8d334a | 565 | STRLEN len; |
e1ec3a88 | 566 | const char *ptr; |
81689caa | 567 | |
c2f922f1 FC |
568 | if (!ssv) goto curstash; |
569 | if (!SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) | |
81689caa | 570 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
5c144d81 | 571 | ptr = SvPV_const(ssv,len); |
a2a5de95 NC |
572 | if (len == 0) |
573 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
574 | "Explicit blessing to '' (assuming package main)"); | |
e69c50fe | 575 | stash = gv_stashpvn(ptr, len, GV_ADD|SvUTF8(ssv)); |
7b8d334a | 576 | } |
a0d0e21e | 577 | |
5d3fdfeb | 578 | (void)sv_bless(TOPs, stash); |
79072805 LW |
579 | RETURN; |
580 | } | |
581 | ||
fb73857a | 582 | PP(pp_gelem) |
583 | { | |
97aff369 | 584 | dVAR; dSP; |
b13b2135 | 585 | |
1b6737cc | 586 | SV *sv = POPs; |
a180b31a BF |
587 | STRLEN len; |
588 | const char * const elem = SvPV_const(sv, len); | |
159b6efe | 589 | GV * const gv = MUTABLE_GV(POPs); |
c445ea15 | 590 | SV * tmpRef = NULL; |
1b6737cc | 591 | |
c445ea15 | 592 | sv = NULL; |
c4ba80c3 NC |
593 | if (elem) { |
594 | /* elem will always be NUL terminated. */ | |
1b6737cc | 595 | const char * const second_letter = elem + 1; |
c4ba80c3 NC |
596 | switch (*elem) { |
597 | case 'A': | |
a180b31a | 598 | if (len == 5 && strEQ(second_letter, "RRAY")) |
ad64d0ec | 599 | tmpRef = MUTABLE_SV(GvAV(gv)); |
c4ba80c3 NC |
600 | break; |
601 | case 'C': | |
a180b31a | 602 | if (len == 4 && strEQ(second_letter, "ODE")) |
ad64d0ec | 603 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
604 | break; |
605 | case 'F': | |
a180b31a | 606 | if (len == 10 && strEQ(second_letter, "ILEHANDLE")) { |
c4ba80c3 NC |
607 | /* finally deprecated in 5.8.0 */ |
608 | deprecate("*glob{FILEHANDLE}"); | |
ad64d0ec | 609 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
610 | } |
611 | else | |
a180b31a | 612 | if (len == 6 && strEQ(second_letter, "ORMAT")) |
ad64d0ec | 613 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
614 | break; |
615 | case 'G': | |
a180b31a | 616 | if (len == 4 && strEQ(second_letter, "LOB")) |
ad64d0ec | 617 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
618 | break; |
619 | case 'H': | |
a180b31a | 620 | if (len == 4 && strEQ(second_letter, "ASH")) |
ad64d0ec | 621 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
622 | break; |
623 | case 'I': | |
a180b31a | 624 | if (*second_letter == 'O' && !elem[2] && len == 2) |
ad64d0ec | 625 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
626 | break; |
627 | case 'N': | |
a180b31a | 628 | if (len == 4 && strEQ(second_letter, "AME")) |
a663657d | 629 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
630 | break; |
631 | case 'P': | |
a180b31a | 632 | if (len == 7 && strEQ(second_letter, "ACKAGE")) { |
7fa3a4ab NC |
633 | const HV * const stash = GvSTASH(gv); |
634 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 635 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
636 | } |
637 | break; | |
638 | case 'S': | |
a180b31a | 639 | if (len == 6 && strEQ(second_letter, "CALAR")) |
f9d52e31 | 640 | tmpRef = GvSVn(gv); |
c4ba80c3 | 641 | break; |
39b99f21 | 642 | } |
fb73857a | 643 | } |
76e3520e GS |
644 | if (tmpRef) |
645 | sv = newRV(tmpRef); | |
fb73857a | 646 | if (sv) |
647 | sv_2mortal(sv); | |
648 | else | |
3280af22 | 649 | sv = &PL_sv_undef; |
fb73857a | 650 | XPUSHs(sv); |
651 | RETURN; | |
652 | } | |
653 | ||
a0d0e21e | 654 | /* Pattern matching */ |
79072805 | 655 | |
a0d0e21e | 656 | PP(pp_study) |
79072805 | 657 | { |
97aff369 | 658 | dVAR; dSP; dPOPss; |
a0d0e21e | 659 | register unsigned char *s; |
72de20cd | 660 | char *sfirst_raw; |
a0d0e21e | 661 | STRLEN len; |
4185c919 | 662 | MAGIC *mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_study) : NULL; |
72de20cd NC |
663 | U8 quanta; |
664 | STRLEN size; | |
4185c919 NC |
665 | |
666 | if (mg && SvSCREAM(sv)) | |
667 | RETPUSHYES; | |
a0d0e21e | 668 | |
a4f4e906 | 669 | s = (unsigned char*)(SvPV(sv, len)); |
bc9a5256 | 670 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
a4f4e906 NC |
671 | /* No point in studying a zero length string, and not safe to study |
672 | anything that doesn't appear to be a simple scalar (and hence might | |
673 | change between now and when the regexp engine runs without our set | |
bd473224 | 674 | magic ever running) such as a reference to an object with overloaded |
bc9a5256 NC |
675 | stringification. Also refuse to study an FBM scalar, as this gives |
676 | more flexibility in SV flag usage. No real-world code would ever | |
677 | end up studying an FBM scalar, so this isn't a real pessimisation. | |
72de20cd NC |
678 | Endemic use of I32 in Perl_screaminstr makes it hard to safely push |
679 | the study length limit from I32_MAX to U32_MAX - 1. | |
bc9a5256 | 680 | */ |
a4f4e906 NC |
681 | RETPUSHNO; |
682 | } | |
683 | ||
72de20cd NC |
684 | if (len < 0xFF) { |
685 | quanta = 1; | |
686 | } else if (len < 0xFFFF) { | |
687 | quanta = 2; | |
688 | } else | |
689 | quanta = 4; | |
a0d0e21e | 690 | |
72de20cd NC |
691 | size = (256 + len) * quanta; |
692 | sfirst_raw = (char *)safemalloc(size); | |
693 | ||
694 | if (!sfirst_raw) | |
cea2e8a9 | 695 | DIE(aTHX_ "do_study: out of memory"); |
a0d0e21e | 696 | |
4185c919 NC |
697 | SvSCREAM_on(sv); |
698 | if (!mg) | |
699 | mg = sv_magicext(sv, NULL, PERL_MAGIC_study, &PL_vtbl_regexp, NULL, 0); | |
72de20cd NC |
700 | mg->mg_ptr = sfirst_raw; |
701 | mg->mg_len = size; | |
702 | mg->mg_private = quanta; | |
703 | ||
704 | memset(sfirst_raw, ~0, 256 * quanta); | |
705 | ||
706 | /* The assumption here is that most studied strings are fairly short, hence | |
707 | the pain of the extra code is worth it, given the memory savings. | |
708 | 80 character string, 336 bytes as U8, down from 1344 as U32 | |
709 | 800 character string, 2112 bytes as U16, down from 4224 as U32 | |
710 | */ | |
711 | ||
712 | if (quanta == 1) { | |
713 | U8 *const sfirst = (U8 *)sfirst_raw; | |
714 | U8 *const snext = sfirst + 256; | |
715 | while (len-- > 0) { | |
716 | const U8 ch = s[len]; | |
717 | snext[len] = sfirst[ch]; | |
718 | sfirst[ch] = len; | |
719 | } | |
720 | } else if (quanta == 2) { | |
721 | U16 *const sfirst = (U16 *)sfirst_raw; | |
722 | U16 *const snext = sfirst + 256; | |
723 | while (len-- > 0) { | |
724 | const U8 ch = s[len]; | |
725 | snext[len] = sfirst[ch]; | |
726 | sfirst[ch] = len; | |
727 | } | |
728 | } else { | |
729 | U32 *const sfirst = (U32 *)sfirst_raw; | |
730 | U32 *const snext = sfirst + 256; | |
731 | while (len-- > 0) { | |
732 | const U8 ch = s[len]; | |
733 | snext[len] = sfirst[ch]; | |
734 | sfirst[ch] = len; | |
735 | } | |
79072805 LW |
736 | } |
737 | ||
1e422769 | 738 | RETPUSHYES; |
79072805 LW |
739 | } |
740 | ||
a0d0e21e | 741 | PP(pp_trans) |
79072805 | 742 | { |
97aff369 | 743 | dVAR; dSP; dTARG; |
a0d0e21e LW |
744 | SV *sv; |
745 | ||
533c011a | 746 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 747 | sv = POPs; |
59f00321 RGS |
748 | else if (PL_op->op_private & OPpTARGET_MY) |
749 | sv = GETTARGET; | |
79072805 | 750 | else { |
54b9620d | 751 | sv = DEFSV; |
a0d0e21e | 752 | EXTEND(SP,1); |
79072805 | 753 | } |
adbc6bb1 | 754 | TARG = sv_newmortal(); |
bb16bae8 | 755 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
756 | STRLEN len; |
757 | const char * const pv = SvPV(sv,len); | |
758 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 759 | do_trans(newsv); |
290797f7 | 760 | PUSHs(newsv); |
bb16bae8 FC |
761 | } |
762 | else PUSHi(do_trans(sv)); | |
a0d0e21e | 763 | RETURN; |
79072805 LW |
764 | } |
765 | ||
a0d0e21e | 766 | /* Lvalue operators. */ |
79072805 | 767 | |
81745e4e NC |
768 | static void |
769 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) | |
770 | { | |
771 | dVAR; | |
772 | STRLEN len; | |
773 | char *s; | |
774 | ||
775 | PERL_ARGS_ASSERT_DO_CHOMP; | |
776 | ||
777 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
778 | return; | |
779 | if (SvTYPE(sv) == SVt_PVAV) { | |
780 | I32 i; | |
781 | AV *const av = MUTABLE_AV(sv); | |
782 | const I32 max = AvFILL(av); | |
783 | ||
784 | for (i = 0; i <= max; i++) { | |
785 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
786 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
787 | do_chomp(retval, sv, chomping); | |
788 | } | |
789 | return; | |
790 | } | |
791 | else if (SvTYPE(sv) == SVt_PVHV) { | |
792 | HV* const hv = MUTABLE_HV(sv); | |
793 | HE* entry; | |
794 | (void)hv_iterinit(hv); | |
795 | while ((entry = hv_iternext(hv))) | |
796 | do_chomp(retval, hv_iterval(hv,entry), chomping); | |
797 | return; | |
798 | } | |
799 | else if (SvREADONLY(sv)) { | |
800 | if (SvFAKE(sv)) { | |
801 | /* SV is copy-on-write */ | |
802 | sv_force_normal_flags(sv, 0); | |
803 | } | |
804 | if (SvREADONLY(sv)) | |
805 | Perl_croak_no_modify(aTHX); | |
806 | } | |
807 | ||
808 | if (PL_encoding) { | |
809 | if (!SvUTF8(sv)) { | |
810 | /* XXX, here sv is utf8-ized as a side-effect! | |
811 | If encoding.pm is used properly, almost string-generating | |
812 | operations, including literal strings, chr(), input data, etc. | |
813 | should have been utf8-ized already, right? | |
814 | */ | |
815 | sv_recode_to_utf8(sv, PL_encoding); | |
816 | } | |
817 | } | |
818 | ||
819 | s = SvPV(sv, len); | |
820 | if (chomping) { | |
821 | char *temp_buffer = NULL; | |
822 | SV *svrecode = NULL; | |
823 | ||
824 | if (s && len) { | |
825 | s += --len; | |
826 | if (RsPARA(PL_rs)) { | |
827 | if (*s != '\n') | |
828 | goto nope; | |
829 | ++SvIVX(retval); | |
830 | while (len && s[-1] == '\n') { | |
831 | --len; | |
832 | --s; | |
833 | ++SvIVX(retval); | |
834 | } | |
835 | } | |
836 | else { | |
837 | STRLEN rslen, rs_charlen; | |
838 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
839 | ||
840 | rs_charlen = SvUTF8(PL_rs) | |
841 | ? sv_len_utf8(PL_rs) | |
842 | : rslen; | |
843 | ||
844 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
845 | /* Assumption is that rs is shorter than the scalar. */ | |
846 | if (SvUTF8(PL_rs)) { | |
847 | /* RS is utf8, scalar is 8 bit. */ | |
848 | bool is_utf8 = TRUE; | |
849 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
850 | &rslen, &is_utf8); | |
851 | if (is_utf8) { | |
852 | /* Cannot downgrade, therefore cannot possibly match | |
853 | */ | |
854 | assert (temp_buffer == rsptr); | |
855 | temp_buffer = NULL; | |
856 | goto nope; | |
857 | } | |
858 | rsptr = temp_buffer; | |
859 | } | |
860 | else if (PL_encoding) { | |
861 | /* RS is 8 bit, encoding.pm is used. | |
862 | * Do not recode PL_rs as a side-effect. */ | |
863 | svrecode = newSVpvn(rsptr, rslen); | |
864 | sv_recode_to_utf8(svrecode, PL_encoding); | |
865 | rsptr = SvPV_const(svrecode, rslen); | |
866 | rs_charlen = sv_len_utf8(svrecode); | |
867 | } | |
868 | else { | |
869 | /* RS is 8 bit, scalar is utf8. */ | |
870 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
871 | rsptr = temp_buffer; | |
872 | } | |
873 | } | |
874 | if (rslen == 1) { | |
875 | if (*s != *rsptr) | |
876 | goto nope; | |
877 | ++SvIVX(retval); | |
878 | } | |
879 | else { | |
880 | if (len < rslen - 1) | |
881 | goto nope; | |
882 | len -= rslen - 1; | |
883 | s -= rslen - 1; | |
884 | if (memNE(s, rsptr, rslen)) | |
885 | goto nope; | |
886 | SvIVX(retval) += rs_charlen; | |
887 | } | |
888 | } | |
889 | s = SvPV_force_nolen(sv); | |
890 | SvCUR_set(sv, len); | |
891 | *SvEND(sv) = '\0'; | |
892 | SvNIOK_off(sv); | |
893 | SvSETMAGIC(sv); | |
894 | } | |
895 | nope: | |
896 | ||
897 | SvREFCNT_dec(svrecode); | |
898 | ||
899 | Safefree(temp_buffer); | |
900 | } else { | |
901 | if (len && !SvPOK(sv)) | |
902 | s = SvPV_force_nomg(sv, len); | |
903 | if (DO_UTF8(sv)) { | |
904 | if (s && len) { | |
905 | char * const send = s + len; | |
906 | char * const start = s; | |
907 | s = send - 1; | |
908 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
909 | s--; | |
910 | if (is_utf8_string((U8*)s, send - s)) { | |
911 | sv_setpvn(retval, s, send - s); | |
912 | *s = '\0'; | |
913 | SvCUR_set(sv, s - start); | |
914 | SvNIOK_off(sv); | |
915 | SvUTF8_on(retval); | |
916 | } | |
917 | } | |
918 | else | |
919 | sv_setpvs(retval, ""); | |
920 | } | |
921 | else if (s && len) { | |
922 | s += --len; | |
923 | sv_setpvn(retval, s, 1); | |
924 | *s = '\0'; | |
925 | SvCUR_set(sv, len); | |
926 | SvUTF8_off(sv); | |
927 | SvNIOK_off(sv); | |
928 | } | |
929 | else | |
930 | sv_setpvs(retval, ""); | |
931 | SvSETMAGIC(sv); | |
932 | } | |
933 | } | |
934 | ||
a0d0e21e LW |
935 | PP(pp_schop) |
936 | { | |
97aff369 | 937 | dVAR; dSP; dTARGET; |
fa54efae NC |
938 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
939 | ||
940 | if (chomping) | |
941 | sv_setiv(TARG, 0); | |
942 | do_chomp(TARG, TOPs, chomping); | |
a0d0e21e LW |
943 | SETTARG; |
944 | RETURN; | |
79072805 LW |
945 | } |
946 | ||
a0d0e21e | 947 | PP(pp_chop) |
79072805 | 948 | { |
97aff369 | 949 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 950 | const bool chomping = PL_op->op_type == OP_CHOMP; |
8ec5e241 | 951 | |
fa54efae NC |
952 | if (chomping) |
953 | sv_setiv(TARG, 0); | |
20cf1f79 | 954 | while (MARK < SP) |
fa54efae | 955 | do_chomp(TARG, *++MARK, chomping); |
20cf1f79 NC |
956 | SP = ORIGMARK; |
957 | XPUSHTARG; | |
a0d0e21e | 958 | RETURN; |
79072805 LW |
959 | } |
960 | ||
a0d0e21e LW |
961 | PP(pp_undef) |
962 | { | |
97aff369 | 963 | dVAR; dSP; |
a0d0e21e LW |
964 | SV *sv; |
965 | ||
533c011a | 966 | if (!PL_op->op_private) { |
774d564b | 967 | EXTEND(SP, 1); |
a0d0e21e | 968 | RETPUSHUNDEF; |
774d564b | 969 | } |
79072805 | 970 | |
a0d0e21e LW |
971 | sv = POPs; |
972 | if (!sv) | |
973 | RETPUSHUNDEF; | |
85e6fe83 | 974 | |
765f542d | 975 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
85e6fe83 | 976 | |
a0d0e21e LW |
977 | switch (SvTYPE(sv)) { |
978 | case SVt_NULL: | |
979 | break; | |
980 | case SVt_PVAV: | |
502c6561 | 981 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
982 | break; |
983 | case SVt_PVHV: | |
85fbaab2 | 984 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
985 | break; |
986 | case SVt_PVCV: | |
a2a5de95 | 987 | if (cv_const_sv((const CV *)sv)) |
714cd18f BF |
988 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
989 | "Constant subroutine %"SVf" undefined", | |
990 | SVfARG(CvANON((const CV *)sv) | |
991 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
992 | : sv_2mortal(newSVhek(GvENAME_HEK(CvGV((const CV *)sv)))))); | |
5f66b61c | 993 | /* FALLTHROUGH */ |
9607fc9c | 994 | case SVt_PVFM: |
6fc92669 GS |
995 | { |
996 | /* let user-undef'd sub keep its identity */ | |
ea726b52 NC |
997 | GV* const gv = CvGV((const CV *)sv); |
998 | cv_undef(MUTABLE_CV(sv)); | |
b3f91e91 | 999 | CvGV_set(MUTABLE_CV(sv), gv); |
6fc92669 | 1000 | } |
a0d0e21e | 1001 | break; |
8e07c86e | 1002 | case SVt_PVGV: |
6e592b3a | 1003 | if (SvFAKE(sv)) { |
3280af22 | 1004 | SvSetMagicSV(sv, &PL_sv_undef); |
6e592b3a BM |
1005 | break; |
1006 | } | |
1007 | else if (isGV_with_GP(sv)) { | |
20408e3c | 1008 | GP *gp; |
dd69841b BB |
1009 | HV *stash; |
1010 | ||
dd69841b | 1011 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
1012 | bool method_changed |
1013 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
1014 | && HvENAME_get(stash); | |
1015 | /* undef *Foo:: */ | |
1016 | if((stash = GvHV((const GV *)sv))) { | |
1017 | if(HvENAME_get(stash)) | |
1018 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
1019 | else stash = NULL; | |
1020 | } | |
dd69841b | 1021 | |
159b6efe | 1022 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 1023 | Newxz(gp, 1, GP); |
c43ae56f | 1024 | GvGP_set(sv, gp_ref(gp)); |
561b68a9 | 1025 | GvSV(sv) = newSV(0); |
57843af0 | 1026 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 1027 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 1028 | GvMULTI_on(sv); |
e530fb81 FC |
1029 | |
1030 | if(stash) | |
afdbe55d | 1031 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
1032 | stash = NULL; |
1033 | /* undef *Foo::ISA */ | |
1034 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
1035 | && (stash = GvSTASH((const GV *)sv)) | |
1036 | && (method_changed || HvENAME(stash)) ) | |
1037 | mro_isa_changed_in(stash); | |
1038 | else if(method_changed) | |
1039 | mro_method_changed_in( | |
da9043f5 | 1040 | GvSTASH((const GV *)sv) |
e530fb81 FC |
1041 | ); |
1042 | ||
6e592b3a | 1043 | break; |
20408e3c | 1044 | } |
6e592b3a | 1045 | /* FALL THROUGH */ |
a0d0e21e | 1046 | default: |
b15aece3 | 1047 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 1048 | SvPV_free(sv); |
c445ea15 | 1049 | SvPV_set(sv, NULL); |
4633a7c4 | 1050 | SvLEN_set(sv, 0); |
a0d0e21e | 1051 | } |
0c34ef67 | 1052 | SvOK_off(sv); |
4633a7c4 | 1053 | SvSETMAGIC(sv); |
79072805 | 1054 | } |
a0d0e21e LW |
1055 | |
1056 | RETPUSHUNDEF; | |
79072805 LW |
1057 | } |
1058 | ||
a0d0e21e LW |
1059 | PP(pp_postinc) |
1060 | { | |
97aff369 | 1061 | dVAR; dSP; dTARGET; |
c22c99bc FC |
1062 | const bool inc = |
1063 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
60092ce4 | 1064 | if (SvTYPE(TOPs) >= SVt_PVAV || (isGV_with_GP(TOPs) && !SvFAKE(TOPs))) |
6ad8f254 | 1065 | Perl_croak_no_modify(aTHX); |
7dcb9b98 DM |
1066 | if (SvROK(TOPs)) |
1067 | TARG = sv_newmortal(); | |
a0d0e21e | 1068 | sv_setsv(TARG, TOPs); |
3510b4a1 | 1069 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
c22c99bc | 1070 | && SvIVX(TOPs) != (inc ? IV_MAX : IV_MIN)) |
55497cff | 1071 | { |
c22c99bc | 1072 | SvIV_set(TOPs, SvIVX(TOPs) + (inc ? 1 : -1)); |
55497cff | 1073 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 | 1074 | } |
c22c99bc | 1075 | else if (inc) |
6f1401dc | 1076 | sv_inc_nomg(TOPs); |
c22c99bc | 1077 | else sv_dec_nomg(TOPs); |
a0d0e21e | 1078 | SvSETMAGIC(TOPs); |
1e54a23f | 1079 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1080 | if (inc && !SvOK(TARG)) |
a0d0e21e LW |
1081 | sv_setiv(TARG, 0); |
1082 | SETs(TARG); | |
1083 | return NORMAL; | |
1084 | } | |
79072805 | 1085 | |
a0d0e21e LW |
1086 | /* Ordinary operators. */ |
1087 | ||
1088 | PP(pp_pow) | |
1089 | { | |
800401ee | 1090 | dVAR; dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1091 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1092 | bool is_int = 0; |
1093 | #endif | |
6f1401dc DM |
1094 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1095 | svr = TOPs; | |
1096 | svl = TOPm1s; | |
52a96ae6 HS |
1097 | #ifdef PERL_PRESERVE_IVUV |
1098 | /* For integer to integer power, we do the calculation by hand wherever | |
1099 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1100 | integer afterwards. */ | |
58d76dfd | 1101 | { |
6f1401dc | 1102 | SvIV_please_nomg(svr); |
800401ee | 1103 | if (SvIOK(svr)) { |
6f1401dc | 1104 | SvIV_please_nomg(svl); |
800401ee | 1105 | if (SvIOK(svl)) { |
900658e3 PF |
1106 | UV power; |
1107 | bool baseuok; | |
1108 | UV baseuv; | |
1109 | ||
800401ee JH |
1110 | if (SvUOK(svr)) { |
1111 | power = SvUVX(svr); | |
900658e3 | 1112 | } else { |
800401ee | 1113 | const IV iv = SvIVX(svr); |
900658e3 PF |
1114 | if (iv >= 0) { |
1115 | power = iv; | |
1116 | } else { | |
1117 | goto float_it; /* Can't do negative powers this way. */ | |
1118 | } | |
1119 | } | |
1120 | ||
800401ee | 1121 | baseuok = SvUOK(svl); |
900658e3 | 1122 | if (baseuok) { |
800401ee | 1123 | baseuv = SvUVX(svl); |
900658e3 | 1124 | } else { |
800401ee | 1125 | const IV iv = SvIVX(svl); |
900658e3 PF |
1126 | if (iv >= 0) { |
1127 | baseuv = iv; | |
1128 | baseuok = TRUE; /* effectively it's a UV now */ | |
1129 | } else { | |
1130 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1131 | } | |
1132 | } | |
52a96ae6 HS |
1133 | /* now we have integer ** positive integer. */ |
1134 | is_int = 1; | |
1135 | ||
1136 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1137 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1138 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1139 | The logic here will work for any base (even non-integer |
1140 | bases) but it can be less accurate than | |
1141 | pow (base,power) or exp (power * log (base)) when the | |
1142 | intermediate values start to spill out of the mantissa. | |
1143 | With powers of 2 we know this can't happen. | |
1144 | And powers of 2 are the favourite thing for perl | |
1145 | programmers to notice ** not doing what they mean. */ | |
1146 | NV result = 1.0; | |
1147 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1148 | |
1149 | if (power & 1) { | |
1150 | result *= base; | |
1151 | } | |
1152 | while (power >>= 1) { | |
1153 | base *= base; | |
1154 | if (power & 1) { | |
1155 | result *= base; | |
1156 | } | |
1157 | } | |
58d76dfd JH |
1158 | SP--; |
1159 | SETn( result ); | |
6f1401dc | 1160 | SvIV_please_nomg(svr); |
58d76dfd | 1161 | RETURN; |
52a96ae6 HS |
1162 | } else { |
1163 | register unsigned int highbit = 8 * sizeof(UV); | |
900658e3 PF |
1164 | register unsigned int diff = 8 * sizeof(UV); |
1165 | while (diff >>= 1) { | |
1166 | highbit -= diff; | |
1167 | if (baseuv >> highbit) { | |
1168 | highbit += diff; | |
1169 | } | |
52a96ae6 HS |
1170 | } |
1171 | /* we now have baseuv < 2 ** highbit */ | |
1172 | if (power * highbit <= 8 * sizeof(UV)) { | |
1173 | /* result will definitely fit in UV, so use UV math | |
1174 | on same algorithm as above */ | |
1175 | register UV result = 1; | |
1176 | register UV base = baseuv; | |
f2338a2e | 1177 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1178 | if (odd_power) { |
1179 | result *= base; | |
1180 | } | |
1181 | while (power >>= 1) { | |
1182 | base *= base; | |
1183 | if (power & 1) { | |
52a96ae6 | 1184 | result *= base; |
52a96ae6 HS |
1185 | } |
1186 | } | |
1187 | SP--; | |
0615a994 | 1188 | if (baseuok || !odd_power) |
52a96ae6 HS |
1189 | /* answer is positive */ |
1190 | SETu( result ); | |
1191 | else if (result <= (UV)IV_MAX) | |
1192 | /* answer negative, fits in IV */ | |
1193 | SETi( -(IV)result ); | |
1194 | else if (result == (UV)IV_MIN) | |
1195 | /* 2's complement assumption: special case IV_MIN */ | |
1196 | SETi( IV_MIN ); | |
1197 | else | |
1198 | /* answer negative, doesn't fit */ | |
1199 | SETn( -(NV)result ); | |
1200 | RETURN; | |
1201 | } | |
1202 | } | |
1203 | } | |
1204 | } | |
58d76dfd | 1205 | } |
52a96ae6 | 1206 | float_it: |
58d76dfd | 1207 | #endif |
a0d0e21e | 1208 | { |
6f1401dc DM |
1209 | NV right = SvNV_nomg(svr); |
1210 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1211 | (void)POPs; |
3aaeb624 JA |
1212 | |
1213 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1214 | /* | |
1215 | We are building perl with long double support and are on an AIX OS | |
1216 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1217 | negative base. This was reported to IBM as PMR #23047-379 on | |
1218 | 03/06/2006. The problem exists in at least the following versions | |
1219 | of AIX and the libm fileset, and no doubt others as well: | |
1220 | ||
1221 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1222 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1223 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1224 | ||
1225 | So, until IBM fixes powl(), we provide the following workaround to | |
1226 | handle the problem ourselves. Our logic is as follows: for | |
1227 | negative bases (left), we use fmod(right, 2) to check if the | |
1228 | exponent is an odd or even integer: | |
1229 | ||
1230 | - if odd, powl(left, right) == -powl(-left, right) | |
1231 | - if even, powl(left, right) == powl(-left, right) | |
1232 | ||
1233 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1234 | we just return that (as NV_NAN). | |
1235 | */ | |
1236 | ||
1237 | if (left < 0.0) { | |
1238 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1239 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1240 | SETn( -Perl_pow( -left, right) ); | |
1241 | } else if (mod2 == 0.0) { /* even integer */ | |
1242 | SETn( Perl_pow( -left, right) ); | |
1243 | } else { /* fractional power */ | |
1244 | SETn( NV_NAN ); | |
1245 | } | |
1246 | } else { | |
1247 | SETn( Perl_pow( left, right) ); | |
1248 | } | |
1249 | #else | |
52a96ae6 | 1250 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1251 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1252 | ||
52a96ae6 HS |
1253 | #ifdef PERL_PRESERVE_IVUV |
1254 | if (is_int) | |
6f1401dc | 1255 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1256 | #endif |
1257 | RETURN; | |
93a17b20 | 1258 | } |
a0d0e21e LW |
1259 | } |
1260 | ||
1261 | PP(pp_multiply) | |
1262 | { | |
800401ee | 1263 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1264 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1265 | svr = TOPs; | |
1266 | svl = TOPm1s; | |
28e5dec8 | 1267 | #ifdef PERL_PRESERVE_IVUV |
6f1401dc | 1268 | SvIV_please_nomg(svr); |
800401ee | 1269 | if (SvIOK(svr)) { |
28e5dec8 JH |
1270 | /* Unless the left argument is integer in range we are going to have to |
1271 | use NV maths. Hence only attempt to coerce the right argument if | |
1272 | we know the left is integer. */ | |
1273 | /* Left operand is defined, so is it IV? */ | |
6f1401dc | 1274 | SvIV_please_nomg(svl); |
800401ee JH |
1275 | if (SvIOK(svl)) { |
1276 | bool auvok = SvUOK(svl); | |
1277 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1278 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1279 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1280 | UV alow; | |
1281 | UV ahigh; | |
1282 | UV blow; | |
1283 | UV bhigh; | |
1284 | ||
1285 | if (auvok) { | |
800401ee | 1286 | alow = SvUVX(svl); |
28e5dec8 | 1287 | } else { |
800401ee | 1288 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1289 | if (aiv >= 0) { |
1290 | alow = aiv; | |
1291 | auvok = TRUE; /* effectively it's a UV now */ | |
1292 | } else { | |
1293 | alow = -aiv; /* abs, auvok == false records sign */ | |
1294 | } | |
1295 | } | |
1296 | if (buvok) { | |
800401ee | 1297 | blow = SvUVX(svr); |
28e5dec8 | 1298 | } else { |
800401ee | 1299 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1300 | if (biv >= 0) { |
1301 | blow = biv; | |
1302 | buvok = TRUE; /* effectively it's a UV now */ | |
1303 | } else { | |
1304 | blow = -biv; /* abs, buvok == false records sign */ | |
1305 | } | |
1306 | } | |
1307 | ||
1308 | /* If this does sign extension on unsigned it's time for plan B */ | |
1309 | ahigh = alow >> (4 * sizeof (UV)); | |
1310 | alow &= botmask; | |
1311 | bhigh = blow >> (4 * sizeof (UV)); | |
1312 | blow &= botmask; | |
1313 | if (ahigh && bhigh) { | |
6f207bd3 | 1314 | NOOP; |
28e5dec8 JH |
1315 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1316 | which is overflow. Drop to NVs below. */ | |
1317 | } else if (!ahigh && !bhigh) { | |
1318 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1319 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1320 | const UV product = alow * blow; |
28e5dec8 JH |
1321 | if (auvok == buvok) { |
1322 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1323 | SP--; | |
1324 | SETu( product ); | |
1325 | RETURN; | |
1326 | } else if (product <= (UV)IV_MIN) { | |
1327 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1328 | /* -ve result, which could overflow an IV */ | |
1329 | SP--; | |
25716404 | 1330 | SETi( -(IV)product ); |
28e5dec8 JH |
1331 | RETURN; |
1332 | } /* else drop to NVs below. */ | |
1333 | } else { | |
1334 | /* One operand is large, 1 small */ | |
1335 | UV product_middle; | |
1336 | if (bhigh) { | |
1337 | /* swap the operands */ | |
1338 | ahigh = bhigh; | |
1339 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1340 | blow = alow; | |
1341 | alow = bhigh; | |
1342 | } | |
1343 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1344 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1345 | product_middle = ahigh * blow; | |
1346 | if (!(product_middle & topmask)) { | |
1347 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1348 | UV product_low; | |
1349 | product_middle <<= (4 * sizeof (UV)); | |
1350 | product_low = alow * blow; | |
1351 | ||
1352 | /* as for pp_add, UV + something mustn't get smaller. | |
1353 | IIRC ANSI mandates this wrapping *behaviour* for | |
1354 | unsigned whatever the actual representation*/ | |
1355 | product_low += product_middle; | |
1356 | if (product_low >= product_middle) { | |
1357 | /* didn't overflow */ | |
1358 | if (auvok == buvok) { | |
1359 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1360 | SP--; | |
1361 | SETu( product_low ); | |
1362 | RETURN; | |
1363 | } else if (product_low <= (UV)IV_MIN) { | |
1364 | /* 2s complement assumption again */ | |
1365 | /* -ve result, which could overflow an IV */ | |
1366 | SP--; | |
25716404 | 1367 | SETi( -(IV)product_low ); |
28e5dec8 JH |
1368 | RETURN; |
1369 | } /* else drop to NVs below. */ | |
1370 | } | |
1371 | } /* product_middle too large */ | |
1372 | } /* ahigh && bhigh */ | |
800401ee JH |
1373 | } /* SvIOK(svl) */ |
1374 | } /* SvIOK(svr) */ | |
28e5dec8 | 1375 | #endif |
a0d0e21e | 1376 | { |
6f1401dc DM |
1377 | NV right = SvNV_nomg(svr); |
1378 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1379 | (void)POPs; |
a0d0e21e LW |
1380 | SETn( left * right ); |
1381 | RETURN; | |
79072805 | 1382 | } |
a0d0e21e LW |
1383 | } |
1384 | ||
1385 | PP(pp_divide) | |
1386 | { | |
800401ee | 1387 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1388 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1389 | svr = TOPs; | |
1390 | svl = TOPm1s; | |
5479d192 | 1391 | /* Only try to do UV divide first |
68795e93 | 1392 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1393 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1394 | to preserve)) | |
1395 | The assumption is that it is better to use floating point divide | |
1396 | whenever possible, only doing integer divide first if we can't be sure. | |
1397 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1398 | can be too large to preserve, so don't need to compile the code to | |
1399 | test the size of UVs. */ | |
1400 | ||
a0d0e21e | 1401 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1402 | # define PERL_TRY_UV_DIVIDE |
1403 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1404 | #else |
5479d192 NC |
1405 | # ifdef PERL_PRESERVE_IVUV |
1406 | # ifndef NV_PRESERVES_UV | |
1407 | # define PERL_TRY_UV_DIVIDE | |
1408 | # endif | |
1409 | # endif | |
a0d0e21e | 1410 | #endif |
5479d192 NC |
1411 | |
1412 | #ifdef PERL_TRY_UV_DIVIDE | |
6f1401dc | 1413 | SvIV_please_nomg(svr); |
800401ee | 1414 | if (SvIOK(svr)) { |
6f1401dc | 1415 | SvIV_please_nomg(svl); |
800401ee JH |
1416 | if (SvIOK(svl)) { |
1417 | bool left_non_neg = SvUOK(svl); | |
1418 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1419 | UV left; |
1420 | UV right; | |
1421 | ||
1422 | if (right_non_neg) { | |
800401ee | 1423 | right = SvUVX(svr); |
5479d192 NC |
1424 | } |
1425 | else { | |
800401ee | 1426 | const IV biv = SvIVX(svr); |
5479d192 NC |
1427 | if (biv >= 0) { |
1428 | right = biv; | |
1429 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1430 | } | |
1431 | else { | |
1432 | right = -biv; | |
1433 | } | |
1434 | } | |
1435 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1436 | warning before dieing, hence this test goes here. | |
1437 | If it were immediately before the second SvIV_please, then | |
1438 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1439 | no inspection would give no warning. */ |
5479d192 NC |
1440 | if (right == 0) |
1441 | DIE(aTHX_ "Illegal division by zero"); | |
1442 | ||
1443 | if (left_non_neg) { | |
800401ee | 1444 | left = SvUVX(svl); |
5479d192 NC |
1445 | } |
1446 | else { | |
800401ee | 1447 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1448 | if (aiv >= 0) { |
1449 | left = aiv; | |
1450 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1451 | } | |
1452 | else { | |
1453 | left = -aiv; | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | if (left >= right | |
1458 | #ifdef SLOPPYDIVIDE | |
1459 | /* For sloppy divide we always attempt integer division. */ | |
1460 | #else | |
1461 | /* Otherwise we only attempt it if either or both operands | |
1462 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1463 | we fall through to the NV divide code below. However, |
1464 | as left >= right to ensure integer result here, we know that | |
1465 | we can skip the test on the right operand - right big | |
1466 | enough not to be preserved can't get here unless left is | |
1467 | also too big. */ | |
1468 | ||
1469 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1470 | #endif |
1471 | ) { | |
1472 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1473 | const UV result = left / right; |
5479d192 NC |
1474 | if (result * right == left) { |
1475 | SP--; /* result is valid */ | |
1476 | if (left_non_neg == right_non_neg) { | |
1477 | /* signs identical, result is positive. */ | |
1478 | SETu( result ); | |
1479 | RETURN; | |
1480 | } | |
1481 | /* 2s complement assumption */ | |
1482 | if (result <= (UV)IV_MIN) | |
91f3b821 | 1483 | SETi( -(IV)result ); |
5479d192 NC |
1484 | else { |
1485 | /* It's exact but too negative for IV. */ | |
1486 | SETn( -(NV)result ); | |
1487 | } | |
1488 | RETURN; | |
1489 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1490 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
5479d192 NC |
1491 | } /* left wasn't SvIOK */ |
1492 | } /* right wasn't SvIOK */ | |
1493 | #endif /* PERL_TRY_UV_DIVIDE */ | |
1494 | { | |
6f1401dc DM |
1495 | NV right = SvNV_nomg(svr); |
1496 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1497 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1498 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1499 | if (! Perl_isnan(right) && right == 0.0) | |
1500 | #else | |
5479d192 | 1501 | if (right == 0.0) |
ebc6a117 | 1502 | #endif |
5479d192 NC |
1503 | DIE(aTHX_ "Illegal division by zero"); |
1504 | PUSHn( left / right ); | |
1505 | RETURN; | |
79072805 | 1506 | } |
a0d0e21e LW |
1507 | } |
1508 | ||
1509 | PP(pp_modulo) | |
1510 | { | |
6f1401dc DM |
1511 | dVAR; dSP; dATARGET; |
1512 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); | |
a0d0e21e | 1513 | { |
9c5ffd7c JH |
1514 | UV left = 0; |
1515 | UV right = 0; | |
dc656993 JH |
1516 | bool left_neg = FALSE; |
1517 | bool right_neg = FALSE; | |
e2c88acc NC |
1518 | bool use_double = FALSE; |
1519 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1520 | NV dright = 0.0; |
1521 | NV dleft = 0.0; | |
6f1401dc DM |
1522 | SV * const svr = TOPs; |
1523 | SV * const svl = TOPm1s; | |
1524 | SvIV_please_nomg(svr); | |
800401ee JH |
1525 | if (SvIOK(svr)) { |
1526 | right_neg = !SvUOK(svr); | |
e2c88acc | 1527 | if (!right_neg) { |
800401ee | 1528 | right = SvUVX(svr); |
e2c88acc | 1529 | } else { |
800401ee | 1530 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1531 | if (biv >= 0) { |
1532 | right = biv; | |
1533 | right_neg = FALSE; /* effectively it's a UV now */ | |
1534 | } else { | |
1535 | right = -biv; | |
1536 | } | |
1537 | } | |
1538 | } | |
1539 | else { | |
6f1401dc | 1540 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1541 | right_neg = dright < 0; |
1542 | if (right_neg) | |
1543 | dright = -dright; | |
e2c88acc NC |
1544 | if (dright < UV_MAX_P1) { |
1545 | right = U_V(dright); | |
1546 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1547 | } else { | |
1548 | use_double = TRUE; | |
1549 | } | |
787eafbd | 1550 | } |
a0d0e21e | 1551 | |
e2c88acc NC |
1552 | /* At this point use_double is only true if right is out of range for |
1553 | a UV. In range NV has been rounded down to nearest UV and | |
1554 | use_double false. */ | |
6f1401dc | 1555 | SvIV_please_nomg(svl); |
800401ee JH |
1556 | if (!use_double && SvIOK(svl)) { |
1557 | if (SvIOK(svl)) { | |
1558 | left_neg = !SvUOK(svl); | |
e2c88acc | 1559 | if (!left_neg) { |
800401ee | 1560 | left = SvUVX(svl); |
e2c88acc | 1561 | } else { |
800401ee | 1562 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1563 | if (aiv >= 0) { |
1564 | left = aiv; | |
1565 | left_neg = FALSE; /* effectively it's a UV now */ | |
1566 | } else { | |
1567 | left = -aiv; | |
1568 | } | |
1569 | } | |
1570 | } | |
1571 | } | |
787eafbd | 1572 | else { |
6f1401dc | 1573 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1574 | left_neg = dleft < 0; |
1575 | if (left_neg) | |
1576 | dleft = -dleft; | |
68dc0745 | 1577 | |
e2c88acc NC |
1578 | /* This should be exactly the 5.6 behaviour - if left and right are |
1579 | both in range for UV then use U_V() rather than floor. */ | |
1580 | if (!use_double) { | |
1581 | if (dleft < UV_MAX_P1) { | |
1582 | /* right was in range, so is dleft, so use UVs not double. | |
1583 | */ | |
1584 | left = U_V(dleft); | |
1585 | } | |
1586 | /* left is out of range for UV, right was in range, so promote | |
1587 | right (back) to double. */ | |
1588 | else { | |
1589 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1590 | consistent with the implicit +0 floor in the U_V() | |
1591 | inside the #if 1. */ | |
1592 | dleft = Perl_floor(dleft + 0.5); | |
1593 | use_double = TRUE; | |
1594 | if (dright_valid) | |
1595 | dright = Perl_floor(dright + 0.5); | |
1596 | else | |
1597 | dright = right; | |
1598 | } | |
1599 | } | |
1600 | } | |
6f1401dc | 1601 | sp -= 2; |
787eafbd | 1602 | if (use_double) { |
65202027 | 1603 | NV dans; |
787eafbd | 1604 | |
787eafbd | 1605 | if (!dright) |
cea2e8a9 | 1606 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1607 | |
65202027 | 1608 | dans = Perl_fmod(dleft, dright); |
787eafbd IZ |
1609 | if ((left_neg != right_neg) && dans) |
1610 | dans = dright - dans; | |
1611 | if (right_neg) | |
1612 | dans = -dans; | |
1613 | sv_setnv(TARG, dans); | |
1614 | } | |
1615 | else { | |
1616 | UV ans; | |
1617 | ||
787eafbd | 1618 | if (!right) |
cea2e8a9 | 1619 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1620 | |
1621 | ans = left % right; | |
1622 | if ((left_neg != right_neg) && ans) | |
1623 | ans = right - ans; | |
1624 | if (right_neg) { | |
1625 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1626 | /* could change -foo to be (~foo)+1 instead */ | |
1627 | if (ans <= ~((UV)IV_MAX)+1) | |
1628 | sv_setiv(TARG, ~ans+1); | |
1629 | else | |
65202027 | 1630 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1631 | } |
1632 | else | |
1633 | sv_setuv(TARG, ans); | |
1634 | } | |
1635 | PUSHTARG; | |
1636 | RETURN; | |
79072805 | 1637 | } |
a0d0e21e | 1638 | } |
79072805 | 1639 | |
a0d0e21e LW |
1640 | PP(pp_repeat) |
1641 | { | |
6f1401dc | 1642 | dVAR; dSP; dATARGET; |
2b573ace | 1643 | register IV count; |
6f1401dc DM |
1644 | SV *sv; |
1645 | ||
1646 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { | |
1647 | /* TODO: think of some way of doing list-repeat overloading ??? */ | |
1648 | sv = POPs; | |
1649 | SvGETMAGIC(sv); | |
1650 | } | |
1651 | else { | |
1652 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); | |
1653 | sv = POPs; | |
1654 | } | |
1655 | ||
2b573ace JH |
1656 | if (SvIOKp(sv)) { |
1657 | if (SvUOK(sv)) { | |
6f1401dc | 1658 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1659 | if (uv > IV_MAX) |
1660 | count = IV_MAX; /* The best we can do? */ | |
1661 | else | |
1662 | count = uv; | |
1663 | } else { | |
6f1401dc | 1664 | const IV iv = SvIV_nomg(sv); |
2b573ace JH |
1665 | if (iv < 0) |
1666 | count = 0; | |
1667 | else | |
1668 | count = iv; | |
1669 | } | |
1670 | } | |
1671 | else if (SvNOKp(sv)) { | |
6f1401dc | 1672 | const NV nv = SvNV_nomg(sv); |
2b573ace JH |
1673 | if (nv < 0.0) |
1674 | count = 0; | |
1675 | else | |
1676 | count = (IV)nv; | |
1677 | } | |
1678 | else | |
6f1401dc DM |
1679 | count = SvIV_nomg(sv); |
1680 | ||
533c011a | 1681 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1682 | dMARK; |
0bd48802 AL |
1683 | static const char oom_list_extend[] = "Out of memory during list extend"; |
1684 | const I32 items = SP - MARK; | |
1685 | const I32 max = items * count; | |
79072805 | 1686 | |
2b573ace JH |
1687 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
1688 | /* Did the max computation overflow? */ | |
27d5b266 | 1689 | if (items > 0 && max > 0 && (max < items || max < count)) |
2b573ace | 1690 | Perl_croak(aTHX_ oom_list_extend); |
a0d0e21e LW |
1691 | MEXTEND(MARK, max); |
1692 | if (count > 1) { | |
1693 | while (SP > MARK) { | |
976c8a39 JH |
1694 | #if 0 |
1695 | /* This code was intended to fix 20010809.028: | |
1696 | ||
1697 | $x = 'abcd'; | |
1698 | for (($x =~ /./g) x 2) { | |
1699 | print chop; # "abcdabcd" expected as output. | |
1700 | } | |
1701 | ||
1702 | * but that change (#11635) broke this code: | |
1703 | ||
1704 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
1705 | ||
1706 | * I can't think of a better fix that doesn't introduce | |
1707 | * an efficiency hit by copying the SVs. The stack isn't | |
1708 | * refcounted, and mortalisation obviously doesn't | |
1709 | * Do The Right Thing when the stack has more than | |
1710 | * one pointer to the same mortal value. | |
1711 | * .robin. | |
1712 | */ | |
e30acc16 RH |
1713 | if (*SP) { |
1714 | *SP = sv_2mortal(newSVsv(*SP)); | |
1715 | SvREADONLY_on(*SP); | |
1716 | } | |
976c8a39 JH |
1717 | #else |
1718 | if (*SP) | |
1719 | SvTEMP_off((*SP)); | |
1720 | #endif | |
a0d0e21e | 1721 | SP--; |
79072805 | 1722 | } |
a0d0e21e LW |
1723 | MARK++; |
1724 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1725 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1726 | SP += max; |
79072805 | 1727 | } |
a0d0e21e LW |
1728 | else if (count <= 0) |
1729 | SP -= items; | |
79072805 | 1730 | } |
a0d0e21e | 1731 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1732 | SV * const tmpstr = POPs; |
a0d0e21e | 1733 | STRLEN len; |
9b877dbb | 1734 | bool isutf; |
2b573ace JH |
1735 | static const char oom_string_extend[] = |
1736 | "Out of memory during string extend"; | |
a0d0e21e | 1737 | |
6f1401dc DM |
1738 | if (TARG != tmpstr) |
1739 | sv_setsv_nomg(TARG, tmpstr); | |
1740 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1741 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1742 | if (count != 1) { |
1743 | if (count < 1) | |
1744 | SvCUR_set(TARG, 0); | |
1745 | else { | |
c445ea15 | 1746 | const STRLEN max = (UV)count * len; |
19a94d75 | 1747 | if (len > MEM_SIZE_MAX / count) |
2b573ace JH |
1748 | Perl_croak(aTHX_ oom_string_extend); |
1749 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
8569b9dc | 1750 | SvGROW(TARG, max + 1); |
a0d0e21e | 1751 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1752 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1753 | } |
a0d0e21e | 1754 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1755 | } |
dfcb284a GS |
1756 | if (isutf) |
1757 | (void)SvPOK_only_UTF8(TARG); | |
1758 | else | |
1759 | (void)SvPOK_only(TARG); | |
b80b6069 RH |
1760 | |
1761 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
1762 | /* The parser saw this as a list repeat, and there | |
1763 | are probably several items on the stack. But we're | |
1764 | in scalar context, and there's no pp_list to save us | |
1765 | now. So drop the rest of the items -- robin@kitsite.com | |
1766 | */ | |
1767 | dMARK; | |
1768 | SP = MARK; | |
1769 | } | |
a0d0e21e | 1770 | PUSHTARG; |
79072805 | 1771 | } |
a0d0e21e LW |
1772 | RETURN; |
1773 | } | |
79072805 | 1774 | |
a0d0e21e LW |
1775 | PP(pp_subtract) |
1776 | { | |
800401ee | 1777 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1778 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1779 | svr = TOPs; | |
1780 | svl = TOPm1s; | |
800401ee | 1781 | useleft = USE_LEFT(svl); |
28e5dec8 | 1782 | #ifdef PERL_PRESERVE_IVUV |
7dca457a NC |
1783 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1784 | "bad things" happen if you rely on signed integers wrapping. */ | |
6f1401dc | 1785 | SvIV_please_nomg(svr); |
800401ee | 1786 | if (SvIOK(svr)) { |
28e5dec8 JH |
1787 | /* Unless the left argument is integer in range we are going to have to |
1788 | use NV maths. Hence only attempt to coerce the right argument if | |
1789 | we know the left is integer. */ | |
9c5ffd7c JH |
1790 | register UV auv = 0; |
1791 | bool auvok = FALSE; | |
7dca457a NC |
1792 | bool a_valid = 0; |
1793 | ||
28e5dec8 | 1794 | if (!useleft) { |
7dca457a NC |
1795 | auv = 0; |
1796 | a_valid = auvok = 1; | |
1797 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1798 | } else { |
1799 | /* Left operand is defined, so is it IV? */ | |
6f1401dc | 1800 | SvIV_please_nomg(svl); |
800401ee JH |
1801 | if (SvIOK(svl)) { |
1802 | if ((auvok = SvUOK(svl))) | |
1803 | auv = SvUVX(svl); | |
7dca457a | 1804 | else { |
800401ee | 1805 | register const IV aiv = SvIVX(svl); |
7dca457a NC |
1806 | if (aiv >= 0) { |
1807 | auv = aiv; | |
1808 | auvok = 1; /* Now acting as a sign flag. */ | |
1809 | } else { /* 2s complement assumption for IV_MIN */ | |
1810 | auv = (UV)-aiv; | |
28e5dec8 | 1811 | } |
7dca457a NC |
1812 | } |
1813 | a_valid = 1; | |
1814 | } | |
1815 | } | |
1816 | if (a_valid) { | |
1817 | bool result_good = 0; | |
1818 | UV result; | |
1819 | register UV buv; | |
800401ee | 1820 | bool buvok = SvUOK(svr); |
9041c2e3 | 1821 | |
7dca457a | 1822 | if (buvok) |
800401ee | 1823 | buv = SvUVX(svr); |
7dca457a | 1824 | else { |
800401ee | 1825 | register const IV biv = SvIVX(svr); |
7dca457a NC |
1826 | if (biv >= 0) { |
1827 | buv = biv; | |
1828 | buvok = 1; | |
1829 | } else | |
1830 | buv = (UV)-biv; | |
1831 | } | |
1832 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1833 | else "IV" now, independent of how it came in. |
7dca457a NC |
1834 | if a, b represents positive, A, B negative, a maps to -A etc |
1835 | a - b => (a - b) | |
1836 | A - b => -(a + b) | |
1837 | a - B => (a + b) | |
1838 | A - B => -(a - b) | |
1839 | all UV maths. negate result if A negative. | |
1840 | subtract if signs same, add if signs differ. */ | |
1841 | ||
1842 | if (auvok ^ buvok) { | |
1843 | /* Signs differ. */ | |
1844 | result = auv + buv; | |
1845 | if (result >= auv) | |
1846 | result_good = 1; | |
1847 | } else { | |
1848 | /* Signs same */ | |
1849 | if (auv >= buv) { | |
1850 | result = auv - buv; | |
1851 | /* Must get smaller */ | |
1852 | if (result <= auv) | |
1853 | result_good = 1; | |
1854 | } else { | |
1855 | result = buv - auv; | |
1856 | if (result <= buv) { | |
1857 | /* result really should be -(auv-buv). as its negation | |
1858 | of true value, need to swap our result flag */ | |
1859 | auvok = !auvok; | |
1860 | result_good = 1; | |
28e5dec8 | 1861 | } |
28e5dec8 JH |
1862 | } |
1863 | } | |
7dca457a NC |
1864 | if (result_good) { |
1865 | SP--; | |
1866 | if (auvok) | |
1867 | SETu( result ); | |
1868 | else { | |
1869 | /* Negate result */ | |
1870 | if (result <= (UV)IV_MIN) | |
1871 | SETi( -(IV)result ); | |
1872 | else { | |
1873 | /* result valid, but out of range for IV. */ | |
1874 | SETn( -(NV)result ); | |
1875 | } | |
1876 | } | |
1877 | RETURN; | |
1878 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1879 | } |
1880 | } | |
1881 | #endif | |
a0d0e21e | 1882 | { |
6f1401dc | 1883 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1884 | (void)POPs; |
1885 | ||
28e5dec8 JH |
1886 | if (!useleft) { |
1887 | /* left operand is undef, treat as zero - value */ | |
1888 | SETn(-value); | |
1889 | RETURN; | |
1890 | } | |
6f1401dc | 1891 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1892 | RETURN; |
79072805 | 1893 | } |
a0d0e21e | 1894 | } |
79072805 | 1895 | |
a0d0e21e LW |
1896 | PP(pp_left_shift) |
1897 | { | |
6f1401dc | 1898 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1899 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1900 | svr = POPs; |
1901 | svl = TOPs; | |
a0d0e21e | 1902 | { |
6f1401dc | 1903 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1904 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1905 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1906 | SETi(i << shift); |
d0ba1bd2 JH |
1907 | } |
1908 | else { | |
6f1401dc | 1909 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1910 | SETu(u << shift); |
d0ba1bd2 | 1911 | } |
55497cff | 1912 | RETURN; |
79072805 | 1913 | } |
a0d0e21e | 1914 | } |
79072805 | 1915 | |
a0d0e21e LW |
1916 | PP(pp_right_shift) |
1917 | { | |
6f1401dc | 1918 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1919 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1920 | svr = POPs; |
1921 | svl = TOPs; | |
a0d0e21e | 1922 | { |
6f1401dc | 1923 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1924 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1925 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1926 | SETi(i >> shift); |
d0ba1bd2 JH |
1927 | } |
1928 | else { | |
6f1401dc | 1929 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1930 | SETu(u >> shift); |
d0ba1bd2 | 1931 | } |
a0d0e21e | 1932 | RETURN; |
93a17b20 | 1933 | } |
79072805 LW |
1934 | } |
1935 | ||
a0d0e21e | 1936 | PP(pp_lt) |
79072805 | 1937 | { |
6f1401dc | 1938 | dVAR; dSP; |
33efebe6 DM |
1939 | SV *left, *right; |
1940 | ||
a42d0242 | 1941 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
1942 | right = POPs; |
1943 | left = TOPs; | |
1944 | SETs(boolSV( | |
1945 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1946 | ? (SvIVX(left) < SvIVX(right)) | |
1947 | : (do_ncmp(left, right) == -1) | |
1948 | )); | |
1949 | RETURN; | |
a0d0e21e | 1950 | } |
79072805 | 1951 | |
a0d0e21e LW |
1952 | PP(pp_gt) |
1953 | { | |
6f1401dc | 1954 | dVAR; dSP; |
33efebe6 | 1955 | SV *left, *right; |
1b6737cc | 1956 | |
33efebe6 DM |
1957 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
1958 | right = POPs; | |
1959 | left = TOPs; | |
1960 | SETs(boolSV( | |
1961 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1962 | ? (SvIVX(left) > SvIVX(right)) | |
1963 | : (do_ncmp(left, right) == 1) | |
1964 | )); | |
1965 | RETURN; | |
a0d0e21e LW |
1966 | } |
1967 | ||
1968 | PP(pp_le) | |
1969 | { | |
6f1401dc | 1970 | dVAR; dSP; |
33efebe6 | 1971 | SV *left, *right; |
1b6737cc | 1972 | |
33efebe6 DM |
1973 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
1974 | right = POPs; | |
1975 | left = TOPs; | |
1976 | SETs(boolSV( | |
1977 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1978 | ? (SvIVX(left) <= SvIVX(right)) | |
1979 | : (do_ncmp(left, right) <= 0) | |
1980 | )); | |
1981 | RETURN; | |
a0d0e21e LW |
1982 | } |
1983 | ||
1984 | PP(pp_ge) | |
1985 | { | |
6f1401dc | 1986 | dVAR; dSP; |
33efebe6 DM |
1987 | SV *left, *right; |
1988 | ||
1989 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
1990 | right = POPs; | |
1991 | left = TOPs; | |
1992 | SETs(boolSV( | |
1993 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1994 | ? (SvIVX(left) >= SvIVX(right)) | |
1995 | : ( (do_ncmp(left, right) & 2) == 0) | |
1996 | )); | |
1997 | RETURN; | |
1998 | } | |
1b6737cc | 1999 | |
33efebe6 DM |
2000 | PP(pp_ne) |
2001 | { | |
2002 | dVAR; dSP; | |
2003 | SV *left, *right; | |
2004 | ||
2005 | tryAMAGICbin_MG(ne_amg, AMGf_set|AMGf_numeric); | |
2006 | right = POPs; | |
2007 | left = TOPs; | |
2008 | SETs(boolSV( | |
2009 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2010 | ? (SvIVX(left) != SvIVX(right)) | |
2011 | : (do_ncmp(left, right) != 0) | |
2012 | )); | |
2013 | RETURN; | |
2014 | } | |
1b6737cc | 2015 | |
33efebe6 DM |
2016 | /* compare left and right SVs. Returns: |
2017 | * -1: < | |
2018 | * 0: == | |
2019 | * 1: > | |
2020 | * 2: left or right was a NaN | |
2021 | */ | |
2022 | I32 | |
2023 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2024 | { | |
2025 | dVAR; | |
1b6737cc | 2026 | |
33efebe6 DM |
2027 | PERL_ARGS_ASSERT_DO_NCMP; |
2028 | #ifdef PERL_PRESERVE_IVUV | |
2029 | SvIV_please_nomg(right); | |
2030 | /* Fortunately it seems NaN isn't IOK */ | |
2031 | if (SvIOK(right)) { | |
2032 | SvIV_please_nomg(left); | |
2033 | if (SvIOK(left)) { | |
2034 | if (!SvUOK(left)) { | |
2035 | const IV leftiv = SvIVX(left); | |
2036 | if (!SvUOK(right)) { | |
2037 | /* ## IV <=> IV ## */ | |
2038 | const IV rightiv = SvIVX(right); | |
2039 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2040 | } |
33efebe6 DM |
2041 | /* ## IV <=> UV ## */ |
2042 | if (leftiv < 0) | |
2043 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2044 | return -1; | |
2045 | { | |
2046 | const UV rightuv = SvUVX(right); | |
2047 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2048 | } |
28e5dec8 | 2049 | } |
79072805 | 2050 | |
33efebe6 DM |
2051 | if (SvUOK(right)) { |
2052 | /* ## UV <=> UV ## */ | |
2053 | const UV leftuv = SvUVX(left); | |
2054 | const UV rightuv = SvUVX(right); | |
2055 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2056 | } |
33efebe6 DM |
2057 | /* ## UV <=> IV ## */ |
2058 | { | |
2059 | const IV rightiv = SvIVX(right); | |
2060 | if (rightiv < 0) | |
2061 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2062 | return 1; | |
2063 | { | |
2064 | const UV leftuv = SvUVX(left); | |
2065 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2066 | } |
28e5dec8 | 2067 | } |
33efebe6 | 2068 | /* NOTREACHED */ |
28e5dec8 JH |
2069 | } |
2070 | } | |
2071 | #endif | |
a0d0e21e | 2072 | { |
33efebe6 DM |
2073 | NV const rnv = SvNV_nomg(right); |
2074 | NV const lnv = SvNV_nomg(left); | |
2075 | ||
cab190d4 | 2076 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2077 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2078 | return 2; | |
2079 | } | |
2080 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2081 | #else |
33efebe6 DM |
2082 | if (lnv < rnv) |
2083 | return -1; | |
2084 | if (lnv > rnv) | |
2085 | return 1; | |
2086 | if (lnv == rnv) | |
2087 | return 0; | |
2088 | return 2; | |
cab190d4 | 2089 | #endif |
a0d0e21e | 2090 | } |
79072805 LW |
2091 | } |
2092 | ||
33efebe6 | 2093 | |
a0d0e21e | 2094 | PP(pp_ncmp) |
79072805 | 2095 | { |
33efebe6 DM |
2096 | dVAR; dSP; |
2097 | SV *left, *right; | |
2098 | I32 value; | |
a42d0242 | 2099 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2100 | right = POPs; |
2101 | left = TOPs; | |
2102 | value = do_ncmp(left, right); | |
2103 | if (value == 2) { | |
3280af22 | 2104 | SETs(&PL_sv_undef); |
79072805 | 2105 | } |
33efebe6 DM |
2106 | else { |
2107 | dTARGET; | |
2108 | SETi(value); | |
2109 | } | |
2110 | RETURN; | |
a0d0e21e | 2111 | } |
79072805 | 2112 | |
afd9910b | 2113 | PP(pp_sle) |
a0d0e21e | 2114 | { |
97aff369 | 2115 | dVAR; dSP; |
79072805 | 2116 | |
afd9910b NC |
2117 | int amg_type = sle_amg; |
2118 | int multiplier = 1; | |
2119 | int rhs = 1; | |
79072805 | 2120 | |
afd9910b NC |
2121 | switch (PL_op->op_type) { |
2122 | case OP_SLT: | |
2123 | amg_type = slt_amg; | |
2124 | /* cmp < 0 */ | |
2125 | rhs = 0; | |
2126 | break; | |
2127 | case OP_SGT: | |
2128 | amg_type = sgt_amg; | |
2129 | /* cmp > 0 */ | |
2130 | multiplier = -1; | |
2131 | rhs = 0; | |
2132 | break; | |
2133 | case OP_SGE: | |
2134 | amg_type = sge_amg; | |
2135 | /* cmp >= 0 */ | |
2136 | multiplier = -1; | |
2137 | break; | |
79072805 | 2138 | } |
79072805 | 2139 | |
6f1401dc | 2140 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2141 | { |
2142 | dPOPTOPssrl; | |
1b6737cc | 2143 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2144 | ? sv_cmp_locale_flags(left, right, 0) |
2145 | : sv_cmp_flags(left, right, 0)); | |
afd9910b | 2146 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2147 | RETURN; |
2148 | } | |
2149 | } | |
79072805 | 2150 | |
36477c24 | 2151 | PP(pp_seq) |
2152 | { | |
6f1401dc DM |
2153 | dVAR; dSP; |
2154 | tryAMAGICbin_MG(seq_amg, AMGf_set); | |
36477c24 | 2155 | { |
2156 | dPOPTOPssrl; | |
078504b2 | 2157 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2158 | RETURN; |
2159 | } | |
2160 | } | |
79072805 | 2161 | |
a0d0e21e | 2162 | PP(pp_sne) |
79072805 | 2163 | { |
6f1401dc DM |
2164 | dVAR; dSP; |
2165 | tryAMAGICbin_MG(sne_amg, AMGf_set); | |
a0d0e21e LW |
2166 | { |
2167 | dPOPTOPssrl; | |
078504b2 | 2168 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2169 | RETURN; |
463ee0b2 | 2170 | } |
79072805 LW |
2171 | } |
2172 | ||
a0d0e21e | 2173 | PP(pp_scmp) |
79072805 | 2174 | { |
6f1401dc DM |
2175 | dVAR; dSP; dTARGET; |
2176 | tryAMAGICbin_MG(scmp_amg, 0); | |
a0d0e21e LW |
2177 | { |
2178 | dPOPTOPssrl; | |
1b6737cc | 2179 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2180 | ? sv_cmp_locale_flags(left, right, 0) |
2181 | : sv_cmp_flags(left, right, 0)); | |
bbce6d69 | 2182 | SETi( cmp ); |
a0d0e21e LW |
2183 | RETURN; |
2184 | } | |
2185 | } | |
79072805 | 2186 | |
55497cff | 2187 | PP(pp_bit_and) |
2188 | { | |
6f1401dc DM |
2189 | dVAR; dSP; dATARGET; |
2190 | tryAMAGICbin_MG(band_amg, AMGf_assign); | |
a0d0e21e LW |
2191 | { |
2192 | dPOPTOPssrl; | |
4633a7c4 | 2193 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2194 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2195 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2196 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2197 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2198 | SETi(i); |
d0ba1bd2 JH |
2199 | } |
2200 | else { | |
1b6737cc | 2201 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2202 | SETu(u); |
d0ba1bd2 | 2203 | } |
b20c4ee1 FC |
2204 | if (left_ro_nonnum) SvNIOK_off(left); |
2205 | if (right_ro_nonnum) SvNIOK_off(right); | |
a0d0e21e LW |
2206 | } |
2207 | else { | |
533c011a | 2208 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2209 | SETTARG; |
2210 | } | |
2211 | RETURN; | |
2212 | } | |
2213 | } | |
79072805 | 2214 | |
a0d0e21e LW |
2215 | PP(pp_bit_or) |
2216 | { | |
3658c1f1 NC |
2217 | dVAR; dSP; dATARGET; |
2218 | const int op_type = PL_op->op_type; | |
2219 | ||
6f1401dc | 2220 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2221 | { |
2222 | dPOPTOPssrl; | |
4633a7c4 | 2223 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2224 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2225 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2226 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2227 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2228 | const IV r = SvIV_nomg(right); | |
2229 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2230 | SETi(result); | |
d0ba1bd2 JH |
2231 | } |
2232 | else { | |
3658c1f1 NC |
2233 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2234 | const UV r = SvUV_nomg(right); | |
2235 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2236 | SETu(result); | |
d0ba1bd2 | 2237 | } |
b20c4ee1 FC |
2238 | if (left_ro_nonnum) SvNIOK_off(left); |
2239 | if (right_ro_nonnum) SvNIOK_off(right); | |
a0d0e21e LW |
2240 | } |
2241 | else { | |
3658c1f1 | 2242 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2243 | SETTARG; |
2244 | } | |
2245 | RETURN; | |
79072805 | 2246 | } |
a0d0e21e | 2247 | } |
79072805 | 2248 | |
a0d0e21e LW |
2249 | PP(pp_negate) |
2250 | { | |
6f1401dc DM |
2251 | dVAR; dSP; dTARGET; |
2252 | tryAMAGICun_MG(neg_amg, AMGf_numeric); | |
a0d0e21e | 2253 | { |
6f1401dc | 2254 | SV * const sv = TOPs; |
1b6737cc | 2255 | const int flags = SvFLAGS(sv); |
a5b92898 | 2256 | |
886a4465 | 2257 | if( !SvNIOK( sv ) && looks_like_number( sv ) ){ |
a5b92898 RB |
2258 | SvIV_please( sv ); |
2259 | } | |
2260 | ||
28e5dec8 JH |
2261 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
2262 | /* It's publicly an integer, or privately an integer-not-float */ | |
2263 | oops_its_an_int: | |
9b0e499b GS |
2264 | if (SvIsUV(sv)) { |
2265 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2266 | /* 2s complement assumption. */ |
9b0e499b GS |
2267 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
2268 | RETURN; | |
2269 | } | |
2270 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2271 | SETi(-SvIVX(sv)); |
9b0e499b GS |
2272 | RETURN; |
2273 | } | |
2274 | } | |
2275 | else if (SvIVX(sv) != IV_MIN) { | |
2276 | SETi(-SvIVX(sv)); | |
2277 | RETURN; | |
2278 | } | |
28e5dec8 JH |
2279 | #ifdef PERL_PRESERVE_IVUV |
2280 | else { | |
2281 | SETu((UV)IV_MIN); | |
2282 | RETURN; | |
2283 | } | |
2284 | #endif | |
9b0e499b GS |
2285 | } |
2286 | if (SvNIOKp(sv)) | |
6f1401dc | 2287 | SETn(-SvNV_nomg(sv)); |
4633a7c4 | 2288 | else if (SvPOKp(sv)) { |
a0d0e21e | 2289 | STRLEN len; |
6f1401dc | 2290 | const char * const s = SvPV_nomg_const(sv, len); |
bbce6d69 | 2291 | if (isIDFIRST(*s)) { |
76f68e9b | 2292 | sv_setpvs(TARG, "-"); |
a0d0e21e | 2293 | sv_catsv(TARG, sv); |
79072805 | 2294 | } |
a0d0e21e | 2295 | else if (*s == '+' || *s == '-') { |
6f1401dc DM |
2296 | sv_setsv_nomg(TARG, sv); |
2297 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
79072805 | 2298 | } |
8eb28a70 | 2299 | else if (DO_UTF8(sv)) { |
6f1401dc | 2300 | SvIV_please_nomg(sv); |
8eb28a70 JH |
2301 | if (SvIOK(sv)) |
2302 | goto oops_its_an_int; | |
2303 | if (SvNOK(sv)) | |
6f1401dc | 2304 | sv_setnv(TARG, -SvNV_nomg(sv)); |
8eb28a70 | 2305 | else { |
76f68e9b | 2306 | sv_setpvs(TARG, "-"); |
8eb28a70 JH |
2307 | sv_catsv(TARG, sv); |
2308 | } | |
834a4ddd | 2309 | } |
28e5dec8 | 2310 | else { |
6f1401dc | 2311 | SvIV_please_nomg(sv); |
8eb28a70 JH |
2312 | if (SvIOK(sv)) |
2313 | goto oops_its_an_int; | |
6f1401dc | 2314 | sv_setnv(TARG, -SvNV_nomg(sv)); |
28e5dec8 | 2315 | } |
a0d0e21e | 2316 | SETTARG; |
79072805 | 2317 | } |
4633a7c4 | 2318 | else |
6f1401dc | 2319 | SETn(-SvNV_nomg(sv)); |
79072805 | 2320 | } |
a0d0e21e | 2321 | RETURN; |
79072805 LW |
2322 | } |
2323 | ||
a0d0e21e | 2324 | PP(pp_not) |
79072805 | 2325 | { |
6f1401dc DM |
2326 | dVAR; dSP; |
2327 | tryAMAGICun_MG(not_amg, AMGf_set); | |
06c841cf | 2328 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
a0d0e21e | 2329 | return NORMAL; |
79072805 LW |
2330 | } |
2331 | ||
a0d0e21e | 2332 | PP(pp_complement) |
79072805 | 2333 | { |
6f1401dc | 2334 | dVAR; dSP; dTARGET; |
a42d0242 | 2335 | tryAMAGICun_MG(compl_amg, AMGf_numeric); |
a0d0e21e LW |
2336 | { |
2337 | dTOPss; | |
4633a7c4 | 2338 | if (SvNIOKp(sv)) { |
d0ba1bd2 | 2339 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2340 | const IV i = ~SvIV_nomg(sv); |
972b05a9 | 2341 | SETi(i); |
d0ba1bd2 JH |
2342 | } |
2343 | else { | |
1b6737cc | 2344 | const UV u = ~SvUV_nomg(sv); |
972b05a9 | 2345 | SETu(u); |
d0ba1bd2 | 2346 | } |
a0d0e21e LW |
2347 | } |
2348 | else { | |
51723571 | 2349 | register U8 *tmps; |
55497cff | 2350 | register I32 anum; |
a0d0e21e LW |
2351 | STRLEN len; |
2352 | ||
10516c54 | 2353 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
891f9566 | 2354 | sv_setsv_nomg(TARG, sv); |
6f1401dc | 2355 | tmps = (U8*)SvPV_force_nomg(TARG, len); |
a0d0e21e | 2356 | anum = len; |
1d68d6cd | 2357 | if (SvUTF8(TARG)) { |
a1ca4561 | 2358 | /* Calculate exact length, let's not estimate. */ |
1d68d6cd | 2359 | STRLEN targlen = 0; |
ba210ebe | 2360 | STRLEN l; |
a1ca4561 YST |
2361 | UV nchar = 0; |
2362 | UV nwide = 0; | |
01f6e806 | 2363 | U8 * const send = tmps + len; |
74d49cd0 TS |
2364 | U8 * const origtmps = tmps; |
2365 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
1d68d6cd | 2366 | |
1d68d6cd | 2367 | while (tmps < send) { |
74d49cd0 TS |
2368 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2369 | tmps += l; | |
5bbb0b5a | 2370 | targlen += UNISKIP(~c); |
a1ca4561 YST |
2371 | nchar++; |
2372 | if (c > 0xff) | |
2373 | nwide++; | |
1d68d6cd SC |
2374 | } |
2375 | ||
2376 | /* Now rewind strings and write them. */ | |
74d49cd0 | 2377 | tmps = origtmps; |
a1ca4561 YST |
2378 | |
2379 | if (nwide) { | |
01f6e806 AL |
2380 | U8 *result; |
2381 | U8 *p; | |
2382 | ||
74d49cd0 | 2383 | Newx(result, targlen + 1, U8); |
01f6e806 | 2384 | p = result; |
a1ca4561 | 2385 | while (tmps < send) { |
74d49cd0 TS |
2386 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2387 | tmps += l; | |
01f6e806 | 2388 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
a1ca4561 | 2389 | } |
01f6e806 | 2390 | *p = '\0'; |
c1c21316 NC |
2391 | sv_usepvn_flags(TARG, (char*)result, targlen, |
2392 | SV_HAS_TRAILING_NUL); | |
a1ca4561 YST |
2393 | SvUTF8_on(TARG); |
2394 | } | |
2395 | else { | |
01f6e806 AL |
2396 | U8 *result; |
2397 | U8 *p; | |
2398 | ||
74d49cd0 | 2399 | Newx(result, nchar + 1, U8); |
01f6e806 | 2400 | p = result; |
a1ca4561 | 2401 | while (tmps < send) { |
74d49cd0 TS |
2402 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2403 | tmps += l; | |
01f6e806 | 2404 | *p++ = ~c; |
a1ca4561 | 2405 | } |
01f6e806 | 2406 | *p = '\0'; |
c1c21316 | 2407 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
d0a21e00 | 2408 | SvUTF8_off(TARG); |
1d68d6cd | 2409 | } |
ec93b65f | 2410 | SETTARG; |
1d68d6cd SC |
2411 | RETURN; |
2412 | } | |
a0d0e21e | 2413 | #ifdef LIBERAL |
51723571 JH |
2414 | { |
2415 | register long *tmpl; | |
2416 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
2417 | *tmps = ~*tmps; | |
2418 | tmpl = (long*)tmps; | |
bb7a0f54 | 2419 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2420 | *tmpl = ~*tmpl; |
2421 | tmps = (U8*)tmpl; | |
2422 | } | |
a0d0e21e LW |
2423 | #endif |
2424 | for ( ; anum > 0; anum--, tmps++) | |
2425 | *tmps = ~*tmps; | |
ec93b65f | 2426 | SETTARG; |
a0d0e21e LW |
2427 | } |
2428 | RETURN; | |
2429 | } | |
79072805 LW |
2430 | } |
2431 | ||
a0d0e21e LW |
2432 | /* integer versions of some of the above */ |
2433 | ||
a0d0e21e | 2434 | PP(pp_i_multiply) |
79072805 | 2435 | { |
6f1401dc DM |
2436 | dVAR; dSP; dATARGET; |
2437 | tryAMAGICbin_MG(mult_amg, AMGf_assign); | |
a0d0e21e | 2438 | { |
6f1401dc | 2439 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2440 | SETi( left * right ); |
2441 | RETURN; | |
2442 | } | |
79072805 LW |
2443 | } |
2444 | ||
a0d0e21e | 2445 | PP(pp_i_divide) |
79072805 | 2446 | { |
85935d8e | 2447 | IV num; |
6f1401dc DM |
2448 | dVAR; dSP; dATARGET; |
2449 | tryAMAGICbin_MG(div_amg, AMGf_assign); | |
a0d0e21e | 2450 | { |
6f1401dc | 2451 | dPOPTOPssrl; |
85935d8e | 2452 | IV value = SvIV_nomg(right); |
a0d0e21e | 2453 | if (value == 0) |
ece1bcef | 2454 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2455 | num = SvIV_nomg(left); |
a0cec769 YST |
2456 | |
2457 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2458 | if (value == -1) | |
2459 | value = - num; | |
2460 | else | |
2461 | value = num / value; | |
6f1401dc | 2462 | SETi(value); |
a0d0e21e LW |
2463 | RETURN; |
2464 | } | |
79072805 LW |
2465 | } |
2466 | ||
befad5d1 | 2467 | #if defined(__GLIBC__) && IVSIZE == 8 |
224ec323 JH |
2468 | STATIC |
2469 | PP(pp_i_modulo_0) | |
befad5d1 NC |
2470 | #else |
2471 | PP(pp_i_modulo) | |
2472 | #endif | |
224ec323 JH |
2473 | { |
2474 | /* This is the vanilla old i_modulo. */ | |
6f1401dc DM |
2475 | dVAR; dSP; dATARGET; |
2476 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2477 | { |
6f1401dc | 2478 | dPOPTOPiirl_nomg; |
224ec323 JH |
2479 | if (!right) |
2480 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2481 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2482 | if (right == -1) | |
2483 | SETi( 0 ); | |
2484 | else | |
2485 | SETi( left % right ); | |
224ec323 JH |
2486 | RETURN; |
2487 | } | |
2488 | } | |
2489 | ||
11010fa3 | 2490 | #if defined(__GLIBC__) && IVSIZE == 8 |
224ec323 JH |
2491 | STATIC |
2492 | PP(pp_i_modulo_1) | |
befad5d1 | 2493 | |
224ec323 | 2494 | { |
224ec323 | 2495 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2496 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2497 | * See below for pp_i_modulo. */ |
6f1401dc DM |
2498 | dVAR; dSP; dATARGET; |
2499 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2500 | { |
6f1401dc | 2501 | dPOPTOPiirl_nomg; |
224ec323 JH |
2502 | if (!right) |
2503 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2504 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2505 | if (right == -1) | |
2506 | SETi( 0 ); | |
2507 | else | |
2508 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2509 | RETURN; |
2510 | } | |
224ec323 JH |
2511 | } |
2512 | ||
a0d0e21e | 2513 | PP(pp_i_modulo) |
79072805 | 2514 | { |
6f1401dc DM |
2515 | dVAR; dSP; dATARGET; |
2516 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2517 | { |
6f1401dc | 2518 | dPOPTOPiirl_nomg; |
224ec323 JH |
2519 | if (!right) |
2520 | DIE(aTHX_ "Illegal modulus zero"); | |
2521 | /* The assumption is to use hereafter the old vanilla version... */ | |
2522 | PL_op->op_ppaddr = | |
2523 | PL_ppaddr[OP_I_MODULO] = | |
1c127fab | 2524 | Perl_pp_i_modulo_0; |
224ec323 JH |
2525 | /* .. but if we have glibc, we might have a buggy _moddi3 |
2526 | * (at least glicb 2.2.5 is known to have this bug), in other | |
2527 | * words our integer modulus with negative quad as the second | |
2528 | * argument might be broken. Test for this and re-patch the | |
2529 | * opcode dispatch table if that is the case, remembering to | |
2530 | * also apply the workaround so that this first round works | |
2531 | * right, too. See [perl #9402] for more information. */ | |
224ec323 JH |
2532 | { |
2533 | IV l = 3; | |
2534 | IV r = -10; | |
2535 | /* Cannot do this check with inlined IV constants since | |
2536 | * that seems to work correctly even with the buggy glibc. */ | |
2537 | if (l % r == -3) { | |
2538 | /* Yikes, we have the bug. | |
2539 | * Patch in the workaround version. */ | |
2540 | PL_op->op_ppaddr = | |
2541 | PL_ppaddr[OP_I_MODULO] = | |
2542 | &Perl_pp_i_modulo_1; | |
2543 | /* Make certain we work right this time, too. */ | |
32fdb065 | 2544 | right = PERL_ABS(right); |
224ec323 JH |
2545 | } |
2546 | } | |
a0cec769 YST |
2547 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2548 | if (right == -1) | |
2549 | SETi( 0 ); | |
2550 | else | |
2551 | SETi( left % right ); | |
224ec323 JH |
2552 | RETURN; |
2553 | } | |
79072805 | 2554 | } |
befad5d1 | 2555 | #endif |
79072805 | 2556 | |
a0d0e21e | 2557 | PP(pp_i_add) |
79072805 | 2558 | { |
6f1401dc DM |
2559 | dVAR; dSP; dATARGET; |
2560 | tryAMAGICbin_MG(add_amg, AMGf_assign); | |
a0d0e21e | 2561 | { |
6f1401dc | 2562 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2563 | SETi( left + right ); |
2564 | RETURN; | |
79072805 | 2565 | } |
79072805 LW |
2566 | } |
2567 | ||
a0d0e21e | 2568 | PP(pp_i_subtract) |
79072805 | 2569 | { |
6f1401dc DM |
2570 | dVAR; dSP; dATARGET; |
2571 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); | |
a0d0e21e | 2572 | { |
6f1401dc | 2573 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2574 | SETi( left - right ); |
2575 | RETURN; | |
79072805 | 2576 | } |
79072805 LW |
2577 | } |
2578 | ||
a0d0e21e | 2579 | PP(pp_i_lt) |
79072805 | 2580 | { |
6f1401dc DM |
2581 | dVAR; dSP; |
2582 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
a0d0e21e | 2583 | { |
96b6b87f | 2584 | dPOPTOPiirl_nomg; |
54310121 | 2585 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2586 | RETURN; |
2587 | } | |
79072805 LW |
2588 | } |
2589 | ||
a0d0e21e | 2590 | PP(pp_i_gt) |
79072805 | 2591 | { |
6f1401dc DM |
2592 | dVAR; dSP; |
2593 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
a0d0e21e | 2594 | { |
96b6b87f | 2595 | dPOPTOPiirl_nomg; |
54310121 | 2596 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2597 | RETURN; |
2598 | } | |
79072805 LW |
2599 | } |
2600 | ||
a0d0e21e | 2601 | PP(pp_i_le) |
79072805 | 2602 | { |
6f1401dc DM |
2603 | dVAR; dSP; |
2604 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
a0d0e21e | 2605 | { |
96b6b87f | 2606 | dPOPTOPiirl_nomg; |
54310121 | 2607 | SETs(boolSV(left <= right)); |
a0d0e21e | 2608 | RETURN; |
85e6fe83 | 2609 | } |
79072805 LW |
2610 | } |
2611 | ||
a0d0e21e | 2612 | PP(pp_i_ge) |
79072805 | 2613 | { |
6f1401dc DM |
2614 | dVAR; dSP; |
2615 | tryAMAGICbin_MG(ge_amg, AMGf_set); | |
a0d0e21e | 2616 | { |
96b6b87f | 2617 | dPOPTOPiirl_nomg; |
54310121 | 2618 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2619 | RETURN; |
2620 | } | |
79072805 LW |
2621 | } |
2622 | ||
a0d0e21e | 2623 | PP(pp_i_eq) |
79072805 | 2624 | { |
6f1401dc DM |
2625 | dVAR; dSP; |
2626 | tryAMAGICbin_MG(eq_amg, AMGf_set); | |
a0d0e21e | 2627 | { |
96b6b87f | 2628 | dPOPTOPiirl_nomg; |
54310121 | 2629 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2630 | RETURN; |
2631 | } | |
79072805 LW |
2632 | } |
2633 | ||
a0d0e21e | 2634 | PP(pp_i_ne) |
79072805 | 2635 | { |
6f1401dc DM |
2636 | dVAR; dSP; |
2637 | tryAMAGICbin_MG(ne_amg, AMGf_set); | |
a0d0e21e | 2638 | { |
96b6b87f | 2639 | dPOPTOPiirl_nomg; |
54310121 | 2640 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2641 | RETURN; |
2642 | } | |
79072805 LW |
2643 | } |
2644 | ||
a0d0e21e | 2645 | PP(pp_i_ncmp) |
79072805 | 2646 | { |
6f1401dc DM |
2647 | dVAR; dSP; dTARGET; |
2648 | tryAMAGICbin_MG(ncmp_amg, 0); | |
a0d0e21e | 2649 | { |
96b6b87f | 2650 | dPOPTOPiirl_nomg; |
a0d0e21e | 2651 | I32 value; |
79072805 | 2652 | |
a0d0e21e | 2653 | if (left > right) |
79072805 | 2654 | value = 1; |
a0d0e21e | 2655 | else if (left < right) |
79072805 | 2656 | value = -1; |
a0d0e21e | 2657 | else |
79072805 | 2658 | value = 0; |
a0d0e21e LW |
2659 | SETi(value); |
2660 | RETURN; | |
79072805 | 2661 | } |
85e6fe83 LW |
2662 | } |
2663 | ||
2664 | PP(pp_i_negate) | |
2665 | { | |
6f1401dc DM |
2666 | dVAR; dSP; dTARGET; |
2667 | tryAMAGICun_MG(neg_amg, 0); | |
2668 | { | |
2669 | SV * const sv = TOPs; | |
2670 | IV const i = SvIV_nomg(sv); | |
2671 | SETi(-i); | |
2672 | RETURN; | |
2673 | } | |
85e6fe83 LW |
2674 | } |
2675 | ||
79072805 LW |
2676 | /* High falutin' math. */ |
2677 | ||
2678 | PP(pp_atan2) | |
2679 | { | |
6f1401dc DM |
2680 | dVAR; dSP; dTARGET; |
2681 | tryAMAGICbin_MG(atan2_amg, 0); | |
a0d0e21e | 2682 | { |
096c060c | 2683 | dPOPTOPnnrl_nomg; |
a1021d57 | 2684 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2685 | RETURN; |
2686 | } | |
79072805 LW |
2687 | } |
2688 | ||
2689 | PP(pp_sin) | |
2690 | { | |
71302fe3 NC |
2691 | dVAR; dSP; dTARGET; |
2692 | int amg_type = sin_amg; | |
2693 | const char *neg_report = NULL; | |
bc81784a | 2694 | NV (*func)(NV) = Perl_sin; |
71302fe3 NC |
2695 | const int op_type = PL_op->op_type; |
2696 | ||
2697 | switch (op_type) { | |
2698 | case OP_COS: | |
2699 | amg_type = cos_amg; | |
bc81784a | 2700 | func = Perl_cos; |
71302fe3 NC |
2701 | break; |
2702 | case OP_EXP: | |
2703 | amg_type = exp_amg; | |
bc81784a | 2704 | func = Perl_exp; |
71302fe3 NC |
2705 | break; |
2706 | case OP_LOG: | |
2707 | amg_type = log_amg; | |
bc81784a | 2708 | func = Perl_log; |
71302fe3 NC |
2709 | neg_report = "log"; |
2710 | break; | |
2711 | case OP_SQRT: | |
2712 | amg_type = sqrt_amg; | |
bc81784a | 2713 | func = Perl_sqrt; |
71302fe3 NC |
2714 | neg_report = "sqrt"; |
2715 | break; | |
a0d0e21e | 2716 | } |
79072805 | 2717 | |
6f1401dc DM |
2718 | |
2719 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2720 | { |
6f1401dc DM |
2721 | SV * const arg = POPs; |
2722 | const NV value = SvNV_nomg(arg); | |
71302fe3 NC |
2723 | if (neg_report) { |
2724 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
2725 | SET_NUMERIC_STANDARD(); | |
2726 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
2727 | } | |
2728 | } | |
2729 | XPUSHn(func(value)); | |
a0d0e21e LW |
2730 | RETURN; |
2731 | } | |
79072805 LW |
2732 | } |
2733 | ||
56cb0a1c AD |
2734 | /* Support Configure command-line overrides for rand() functions. |
2735 | After 5.005, perhaps we should replace this by Configure support | |
2736 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2737 | compatibility by calling rand() but allow the user to override it. | |
2738 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2739 | */ | |
85ab1d1d JH |
2740 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2741 | in addition to rand(). So the overrides should not be needed any more. | |
2742 | --Jarkko Hietaniemi 27 September 1998 | |
2743 | */ | |
2744 | ||
2745 | #ifndef HAS_DRAND48_PROTO | |
20ce7b12 | 2746 | extern double drand48 (void); |
56cb0a1c AD |
2747 | #endif |
2748 | ||
79072805 LW |
2749 | PP(pp_rand) |
2750 | { | |
97aff369 | 2751 | dVAR; dSP; dTARGET; |
65202027 | 2752 | NV value; |
79072805 LW |
2753 | if (MAXARG < 1) |
2754 | value = 1.0; | |
94ec06bc FC |
2755 | else if (!TOPs) { |
2756 | value = 1.0; (void)POPs; | |
2757 | } | |
79072805 LW |
2758 | else |
2759 | value = POPn; | |
2760 | if (value == 0.0) | |
2761 | value = 1.0; | |
80252599 | 2762 | if (!PL_srand_called) { |
85ab1d1d | 2763 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2764 | PL_srand_called = TRUE; |
93dc8474 | 2765 | } |
85ab1d1d | 2766 | value *= Drand01(); |
79072805 LW |
2767 | XPUSHn(value); |
2768 | RETURN; | |
2769 | } | |
2770 | ||
2771 | PP(pp_srand) | |
2772 | { | |
83832992 | 2773 | dVAR; dSP; dTARGET; |
d22667bf | 2774 | const UV anum = (MAXARG < 1 || (!TOPs && !POPs)) ? seed() : POPu; |
85ab1d1d | 2775 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2776 | PL_srand_called = TRUE; |
da1010ec NC |
2777 | if (anum) |
2778 | XPUSHu(anum); | |
2779 | else { | |
2780 | /* Historically srand always returned true. We can avoid breaking | |
2781 | that like this: */ | |
2782 | sv_setpvs(TARG, "0 but true"); | |
2783 | XPUSHTARG; | |
2784 | } | |
83832992 | 2785 | RETURN; |
79072805 LW |
2786 | } |
2787 | ||
79072805 LW |
2788 | PP(pp_int) |
2789 | { | |
6f1401dc DM |
2790 | dVAR; dSP; dTARGET; |
2791 | tryAMAGICun_MG(int_amg, AMGf_numeric); | |
774d564b | 2792 | { |
6f1401dc DM |
2793 | SV * const sv = TOPs; |
2794 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2795 | /* XXX it's arguable that compiler casting to IV might be subtly |
2796 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2797 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2798 | relying on floating point to be accurate is a bug. */ | |
2799 | ||
c781a409 | 2800 | if (!SvOK(sv)) { |
922c4365 | 2801 | SETu(0); |
c781a409 RD |
2802 | } |
2803 | else if (SvIOK(sv)) { | |
2804 | if (SvIsUV(sv)) | |
6f1401dc | 2805 | SETu(SvUV_nomg(sv)); |
c781a409 | 2806 | else |
28e5dec8 | 2807 | SETi(iv); |
c781a409 | 2808 | } |
c781a409 | 2809 | else { |
6f1401dc | 2810 | const NV value = SvNV_nomg(sv); |
1048ea30 | 2811 | if (value >= 0.0) { |
28e5dec8 JH |
2812 | if (value < (NV)UV_MAX + 0.5) { |
2813 | SETu(U_V(value)); | |
2814 | } else { | |
059a1014 | 2815 | SETn(Perl_floor(value)); |
28e5dec8 | 2816 | } |
1048ea30 | 2817 | } |
28e5dec8 JH |
2818 | else { |
2819 | if (value > (NV)IV_MIN - 0.5) { | |
2820 | SETi(I_V(value)); | |
2821 | } else { | |
1bbae031 | 2822 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
2823 | } |
2824 | } | |
774d564b | 2825 | } |
79072805 | 2826 | } |
79072805 LW |
2827 | RETURN; |
2828 | } | |
2829 | ||
463ee0b2 LW |
2830 | PP(pp_abs) |
2831 | { | |
6f1401dc DM |
2832 | dVAR; dSP; dTARGET; |
2833 | tryAMAGICun_MG(abs_amg, AMGf_numeric); | |
a0d0e21e | 2834 | { |
6f1401dc | 2835 | SV * const sv = TOPs; |
28e5dec8 | 2836 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 2837 | const IV iv = SvIV_nomg(sv); |
a227d84d | 2838 | |
800401ee | 2839 | if (!SvOK(sv)) { |
922c4365 | 2840 | SETu(0); |
800401ee JH |
2841 | } |
2842 | else if (SvIOK(sv)) { | |
28e5dec8 | 2843 | /* IVX is precise */ |
800401ee | 2844 | if (SvIsUV(sv)) { |
6f1401dc | 2845 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
2846 | } else { |
2847 | if (iv >= 0) { | |
2848 | SETi(iv); | |
2849 | } else { | |
2850 | if (iv != IV_MIN) { | |
2851 | SETi(-iv); | |
2852 | } else { | |
2853 | /* 2s complement assumption. Also, not really needed as | |
2854 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
2855 | SETu(IV_MIN); | |
2856 | } | |
a227d84d | 2857 | } |
28e5dec8 JH |
2858 | } |
2859 | } else{ | |
6f1401dc | 2860 | const NV value = SvNV_nomg(sv); |
774d564b | 2861 | if (value < 0.0) |
1b6737cc | 2862 | SETn(-value); |
a4474c9e DD |
2863 | else |
2864 | SETn(value); | |
774d564b | 2865 | } |
a0d0e21e | 2866 | } |
774d564b | 2867 | RETURN; |
463ee0b2 LW |
2868 | } |
2869 | ||
79072805 LW |
2870 | PP(pp_oct) |
2871 | { | |
97aff369 | 2872 | dVAR; dSP; dTARGET; |
5c144d81 | 2873 | const char *tmps; |
53305cf1 | 2874 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 2875 | STRLEN len; |
53305cf1 NC |
2876 | NV result_nv; |
2877 | UV result_uv; | |
1b6737cc | 2878 | SV* const sv = POPs; |
79072805 | 2879 | |
349d4f2f | 2880 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
2881 | if (DO_UTF8(sv)) { |
2882 | /* If Unicode, try to downgrade | |
2883 | * If not possible, croak. */ | |
1b6737cc | 2884 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
2885 | |
2886 | SvUTF8_on(tsv); | |
2887 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 2888 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 2889 | } |
daa2adfd NC |
2890 | if (PL_op->op_type == OP_HEX) |
2891 | goto hex; | |
2892 | ||
6f894ead | 2893 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 2894 | tmps++, len--; |
9e24b6e2 | 2895 | if (*tmps == '0') |
53305cf1 | 2896 | tmps++, len--; |
a674e8db | 2897 | if (*tmps == 'x' || *tmps == 'X') { |
daa2adfd | 2898 | hex: |
53305cf1 | 2899 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 2900 | } |
a674e8db | 2901 | else if (*tmps == 'b' || *tmps == 'B') |
53305cf1 | 2902 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 2903 | else |
53305cf1 NC |
2904 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
2905 | ||
2906 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
2907 | XPUSHn(result_nv); | |
2908 | } | |
2909 | else { | |
2910 | XPUSHu(result_uv); | |
2911 | } | |
79072805 LW |
2912 | RETURN; |
2913 | } | |
2914 | ||
2915 | /* String stuff. */ | |
2916 | ||
2917 | PP(pp_length) | |
2918 | { | |
97aff369 | 2919 | dVAR; dSP; dTARGET; |
0bd48802 | 2920 | SV * const sv = TOPs; |
a0ed51b3 | 2921 | |
656266fc | 2922 | if (SvGAMAGIC(sv)) { |
9f621bb0 NC |
2923 | /* For an overloaded or magic scalar, we can't know in advance if |
2924 | it's going to be UTF-8 or not. Also, we can't call sv_len_utf8 as | |
2925 | it likes to cache the length. Maybe that should be a documented | |
2926 | feature of it. | |
92331800 NC |
2927 | */ |
2928 | STRLEN len; | |
9f621bb0 NC |
2929 | const char *const p |
2930 | = sv_2pv_flags(sv, &len, | |
2931 | SV_UNDEF_RETURNS_NULL|SV_CONST_RETURN|SV_GMAGIC); | |
92331800 | 2932 | |
d88e091f | 2933 | if (!p) { |
9407f9c1 DL |
2934 | if (!SvPADTMP(TARG)) { |
2935 | sv_setsv(TARG, &PL_sv_undef); | |
2936 | SETTARG; | |
2937 | } | |
2938 | SETs(&PL_sv_undef); | |
d88e091f | 2939 | } |
9f621bb0 | 2940 | else if (DO_UTF8(sv)) { |
899be101 | 2941 | SETi(utf8_length((U8*)p, (U8*)p + len)); |
92331800 NC |
2942 | } |
2943 | else | |
2944 | SETi(len); | |
656266fc | 2945 | } else if (SvOK(sv)) { |
9f621bb0 NC |
2946 | /* Neither magic nor overloaded. */ |
2947 | if (DO_UTF8(sv)) | |
2948 | SETi(sv_len_utf8(sv)); | |
2949 | else | |
2950 | SETi(sv_len(sv)); | |
656266fc | 2951 | } else { |
9407f9c1 DL |
2952 | if (!SvPADTMP(TARG)) { |
2953 | sv_setsv_nomg(TARG, &PL_sv_undef); | |
2954 | SETTARG; | |
2955 | } | |
2956 | SETs(&PL_sv_undef); | |
92331800 | 2957 | } |
79072805 LW |
2958 | RETURN; |
2959 | } | |
2960 | ||
2961 | PP(pp_substr) | |
2962 | { | |
97aff369 | 2963 | dVAR; dSP; dTARGET; |
79072805 | 2964 | SV *sv; |
463ee0b2 | 2965 | STRLEN curlen; |
9402d6ed | 2966 | STRLEN utf8_curlen; |
777f7c56 EB |
2967 | SV * pos_sv; |
2968 | IV pos1_iv; | |
2969 | int pos1_is_uv; | |
2970 | IV pos2_iv; | |
2971 | int pos2_is_uv; | |
2972 | SV * len_sv; | |
2973 | IV len_iv = 0; | |
2974 | int len_is_uv = 1; | |
050e6362 | 2975 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 2976 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 2977 | const char *tmps; |
9402d6ed | 2978 | SV *repl_sv = NULL; |
cbbf8932 | 2979 | const char *repl = NULL; |
7b8d334a | 2980 | STRLEN repl_len; |
7bc95ae1 | 2981 | int num_args = PL_op->op_private & 7; |
13e30c65 | 2982 | bool repl_need_utf8_upgrade = FALSE; |
9402d6ed | 2983 | bool repl_is_utf8 = FALSE; |
79072805 | 2984 | |
78f9721b SM |
2985 | if (num_args > 2) { |
2986 | if (num_args > 3) { | |
7bc95ae1 | 2987 | if((repl_sv = POPs)) { |
83003860 | 2988 | repl = SvPV_const(repl_sv, repl_len); |
bf32a30c | 2989 | repl_is_utf8 = DO_UTF8(repl_sv) && repl_len; |
7bc95ae1 FC |
2990 | } |
2991 | else num_args--; | |
2992 | } | |
2993 | if ((len_sv = POPs)) { | |
2994 | len_iv = SvIV(len_sv); | |
2995 | len_is_uv = SvIOK_UV(len_sv); | |
7b8d334a | 2996 | } |
7bc95ae1 | 2997 | else num_args--; |
5d82c453 | 2998 | } |
777f7c56 EB |
2999 | pos_sv = POPs; |
3000 | pos1_iv = SvIV(pos_sv); | |
3001 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3002 | sv = POPs; |
849ca7ee | 3003 | PUTBACK; |
9402d6ed JH |
3004 | if (repl_sv) { |
3005 | if (repl_is_utf8) { | |
3006 | if (!DO_UTF8(sv)) | |
3007 | sv_utf8_upgrade(sv); | |
3008 | } | |
13e30c65 JH |
3009 | else if (DO_UTF8(sv)) |
3010 | repl_need_utf8_upgrade = TRUE; | |
9402d6ed | 3011 | } |
5c144d81 | 3012 | tmps = SvPV_const(sv, curlen); |
7e2040f0 | 3013 | if (DO_UTF8(sv)) { |
9402d6ed JH |
3014 | utf8_curlen = sv_len_utf8(sv); |
3015 | if (utf8_curlen == curlen) | |
3016 | utf8_curlen = 0; | |
a0ed51b3 | 3017 | else |
9402d6ed | 3018 | curlen = utf8_curlen; |
a0ed51b3 | 3019 | } |
d1c2b58a | 3020 | else |
9402d6ed | 3021 | utf8_curlen = 0; |
a0ed51b3 | 3022 | |
e1dccc0d Z |
3023 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { |
3024 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
3025 | pos1_iv += curlen; | |
777f7c56 | 3026 | } |
e1dccc0d Z |
3027 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) |
3028 | goto bound_fail; | |
777f7c56 EB |
3029 | |
3030 | if (num_args > 2) { | |
3031 | if (!len_is_uv && len_iv < 0) { | |
3032 | pos2_iv = curlen + len_iv; | |
3033 | if (curlen) | |
3034 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
3035 | else | |
3036 | pos2_is_uv = 0; | |
3037 | } else { /* len_iv >= 0 */ | |
3038 | if (!pos1_is_uv && pos1_iv < 0) { | |
3039 | pos2_iv = pos1_iv + len_iv; | |
3040 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
3041 | } else { | |
3042 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
3043 | pos2_iv = curlen; | |
3044 | else | |
3045 | pos2_iv = pos1_iv+len_iv; | |
3046 | pos2_is_uv = 1; | |
3047 | } | |
5d82c453 | 3048 | } |
2304df62 | 3049 | } |
79072805 | 3050 | else { |
777f7c56 EB |
3051 | pos2_iv = curlen; |
3052 | pos2_is_uv = 1; | |
3053 | } | |
3054 | ||
3055 | if (!pos2_is_uv && pos2_iv < 0) { | |
3056 | if (!pos1_is_uv && pos1_iv < 0) | |
1c900557 | 3057 | goto bound_fail; |
777f7c56 EB |
3058 | pos2_iv = 0; |
3059 | } | |
3060 | else if (!pos1_is_uv && pos1_iv < 0) | |
3061 | pos1_iv = 0; | |
3062 | ||
3063 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3064 | pos2_iv = pos1_iv; | |
3065 | if ((UV)pos2_iv > curlen) | |
3066 | pos2_iv = curlen; | |
3067 | ||
3068 | { | |
3069 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3070 | const STRLEN pos = (STRLEN)( (UV)pos1_iv ); | |
3071 | const STRLEN len = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
777f7c56 | 3072 | STRLEN byte_len = len; |
d931b1be NC |
3073 | STRLEN byte_pos = utf8_curlen |
3074 | ? sv_pos_u2b_flags(sv, pos, &byte_len, SV_CONST_RETURN) : pos; | |
3075 | ||
2154eca7 EB |
3076 | if (lvalue && !repl) { |
3077 | SV * ret; | |
3078 | ||
3079 | if (!SvGMAGICAL(sv)) { | |
3080 | if (SvROK(sv)) { | |
3081 | SvPV_force_nolen(sv); | |
3082 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3083 | "Attempt to use reference as lvalue in substr"); | |
3084 | } | |
3085 | if (isGV_with_GP(sv)) | |
3086 | SvPV_force_nolen(sv); | |
3087 | else if (SvOK(sv)) /* is it defined ? */ | |
3088 | (void)SvPOK_only_UTF8(sv); | |
3089 | else | |
3090 | sv_setpvs(sv, ""); /* avoid lexical reincarnation */ | |
781e7547 | 3091 | } |
2154eca7 EB |
3092 | |
3093 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3094 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3095 | LvTYPE(ret) = 'x'; | |
3096 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3097 | LvTARGOFF(ret) = pos; | |
3098 | LvTARGLEN(ret) = len; | |
3099 | ||
3100 | SPAGAIN; | |
3101 | PUSHs(ret); /* avoid SvSETMAGIC here */ | |
3102 | RETURN; | |
781e7547 DM |
3103 | } |
3104 | ||
2154eca7 | 3105 | tmps += byte_pos; |
bbddc9e0 CS |
3106 | |
3107 | if (rvalue) { | |
3108 | SvTAINTED_off(TARG); /* decontaminate */ | |
3109 | SvUTF8_off(TARG); /* decontaminate */ | |
3110 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3111 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3112 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3113 | #endif |
bbddc9e0 CS |
3114 | if (utf8_curlen) |
3115 | SvUTF8_on(TARG); | |
3116 | } | |
2154eca7 | 3117 | |
f7928d6c | 3118 | if (repl) { |
13e30c65 JH |
3119 | SV* repl_sv_copy = NULL; |
3120 | ||
3121 | if (repl_need_utf8_upgrade) { | |
3122 | repl_sv_copy = newSVsv(repl_sv); | |
3123 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3124 | repl = SvPV_const(repl_sv_copy, repl_len); |
bf32a30c | 3125 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && repl_len; |
13e30c65 | 3126 | } |
502d9230 VP |
3127 | if (!SvOK(sv)) |
3128 | sv_setpvs(sv, ""); | |
777f7c56 | 3129 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
9402d6ed | 3130 | if (repl_is_utf8) |
f7928d6c | 3131 | SvUTF8_on(sv); |
ef8d46e8 | 3132 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3133 | } |
79072805 | 3134 | } |
849ca7ee | 3135 | SPAGAIN; |
bbddc9e0 CS |
3136 | if (rvalue) { |
3137 | SvSETMAGIC(TARG); | |
3138 | PUSHs(TARG); | |
3139 | } | |
79072805 | 3140 | RETURN; |
777f7c56 | 3141 | |
1c900557 | 3142 | bound_fail: |
777f7c56 EB |
3143 | if (lvalue || repl) |
3144 | Perl_croak(aTHX_ "substr outside of string"); | |
3145 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3146 | RETPUSHUNDEF; | |
79072805 LW |
3147 | } |
3148 | ||
3149 | PP(pp_vec) | |
3150 | { | |
2154eca7 | 3151 | dVAR; dSP; |
1b6737cc AL |
3152 | register const IV size = POPi; |
3153 | register const IV offset = POPi; | |
3154 | register SV * const src = POPs; | |
3155 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
2154eca7 | 3156 | SV * ret; |
a0d0e21e | 3157 | |
81e118e0 | 3158 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3159 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3160 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3161 | LvTYPE(ret) = 'v'; | |
3162 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3163 | LvTARGOFF(ret) = offset; | |
3164 | LvTARGLEN(ret) = size; | |
3165 | } | |
3166 | else { | |
3167 | dTARGET; | |
3168 | SvTAINTED_off(TARG); /* decontaminate */ | |
3169 | ret = TARG; | |
79072805 LW |
3170 | } |
3171 | ||
2154eca7 EB |
3172 | sv_setuv(ret, do_vecget(src, offset, size)); |
3173 | PUSHs(ret); | |
79072805 LW |
3174 | RETURN; |
3175 | } | |
3176 | ||
3177 | PP(pp_index) | |
3178 | { | |
97aff369 | 3179 | dVAR; dSP; dTARGET; |
79072805 LW |
3180 | SV *big; |
3181 | SV *little; | |
c445ea15 | 3182 | SV *temp = NULL; |
ad66a58c | 3183 | STRLEN biglen; |
2723d216 | 3184 | STRLEN llen = 0; |
79072805 LW |
3185 | I32 offset; |
3186 | I32 retval; | |
73ee8be2 NC |
3187 | const char *big_p; |
3188 | const char *little_p; | |
2f040f7f NC |
3189 | bool big_utf8; |
3190 | bool little_utf8; | |
2723d216 | 3191 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3192 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3193 | |
e1dccc0d Z |
3194 | if (threeargs) |
3195 | offset = POPi; | |
79072805 LW |
3196 | little = POPs; |
3197 | big = POPs; | |
73ee8be2 NC |
3198 | big_p = SvPV_const(big, biglen); |
3199 | little_p = SvPV_const(little, llen); | |
3200 | ||
e609e586 NC |
3201 | big_utf8 = DO_UTF8(big); |
3202 | little_utf8 = DO_UTF8(little); | |
3203 | if (big_utf8 ^ little_utf8) { | |
3204 | /* One needs to be upgraded. */ | |
2f040f7f NC |
3205 | if (little_utf8 && !PL_encoding) { |
3206 | /* Well, maybe instead we might be able to downgrade the small | |
3207 | string? */ | |
1eced8f8 | 3208 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3209 | &little_utf8); |
3210 | if (little_utf8) { | |
3211 | /* If the large string is ISO-8859-1, and it's not possible to | |
3212 | convert the small string to ISO-8859-1, then there is no | |
3213 | way that it could be found anywhere by index. */ | |
3214 | retval = -1; | |
3215 | goto fail; | |
3216 | } | |
e609e586 | 3217 | |
2f040f7f NC |
3218 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3219 | to ensure it will get free()d */ | |
3220 | little = temp = newSV(0); | |
73ee8be2 NC |
3221 | sv_usepvn(temp, pv, llen); |
3222 | little_p = SvPVX(little); | |
e609e586 | 3223 | } else { |
73ee8be2 NC |
3224 | temp = little_utf8 |
3225 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
2f040f7f NC |
3226 | |
3227 | if (PL_encoding) { | |
3228 | sv_recode_to_utf8(temp, PL_encoding); | |
3229 | } else { | |
3230 | sv_utf8_upgrade(temp); | |
3231 | } | |
3232 | if (little_utf8) { | |
3233 | big = temp; | |
3234 | big_utf8 = TRUE; | |
73ee8be2 | 3235 | big_p = SvPV_const(big, biglen); |
2f040f7f NC |
3236 | } else { |
3237 | little = temp; | |
73ee8be2 | 3238 | little_p = SvPV_const(little, llen); |
2f040f7f | 3239 | } |
e609e586 NC |
3240 | } |
3241 | } | |
73ee8be2 NC |
3242 | if (SvGAMAGIC(big)) { |
3243 | /* Life just becomes a lot easier if I use a temporary here. | |
3244 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3245 | will trigger magic and overloading again, as will fbm_instr() | |
3246 | */ | |
59cd0e26 NC |
3247 | big = newSVpvn_flags(big_p, biglen, |
3248 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3249 | big_p = SvPVX(big); |
3250 | } | |
e4e44778 | 3251 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3252 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3253 | warn on undef, and we've already triggered a warning with the | |
3254 | SvPV_const some lines above. We can't remove that, as we need to | |
3255 | call some SvPV to trigger overloading early and find out if the | |
3256 | string is UTF-8. | |
3257 | This is all getting to messy. The API isn't quite clean enough, | |
3258 | because data access has side effects. | |
3259 | */ | |
59cd0e26 NC |
3260 | little = newSVpvn_flags(little_p, llen, |
3261 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3262 | little_p = SvPVX(little); |
3263 | } | |
e609e586 | 3264 | |
d3e26383 | 3265 | if (!threeargs) |
2723d216 | 3266 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3267 | else { |
ad66a58c | 3268 | if (big_utf8 && offset > 0) |
a0ed51b3 | 3269 | sv_pos_u2b(big, &offset, 0); |
73ee8be2 NC |
3270 | if (!is_index) |
3271 | offset += llen; | |
a0ed51b3 | 3272 | } |
79072805 LW |
3273 | if (offset < 0) |
3274 | offset = 0; | |
ad66a58c NC |
3275 | else if (offset > (I32)biglen) |
3276 | offset = biglen; | |
73ee8be2 NC |
3277 | if (!(little_p = is_index |
3278 | ? fbm_instr((unsigned char*)big_p + offset, | |
3279 | (unsigned char*)big_p + biglen, little, 0) | |
3280 | : rninstr(big_p, big_p + offset, | |
3281 | little_p, little_p + llen))) | |
a0ed51b3 | 3282 | retval = -1; |
ad66a58c | 3283 | else { |
73ee8be2 | 3284 | retval = little_p - big_p; |
ad66a58c NC |
3285 | if (retval > 0 && big_utf8) |
3286 | sv_pos_b2u(big, &retval); | |
3287 | } | |
ef8d46e8 | 3288 | SvREFCNT_dec(temp); |
2723d216 | 3289 | fail: |
e1dccc0d | 3290 | PUSHi(retval); |
79072805 LW |
3291 | RETURN; |
3292 | } | |
3293 | ||
3294 | PP(pp_sprintf) | |
3295 | { | |
97aff369 | 3296 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3297 | SvTAINTED_off(TARG); |
79072805 | 3298 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3299 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3300 | SP = ORIGMARK; |
3301 | PUSHTARG; | |
3302 | RETURN; | |
3303 | } | |
3304 | ||
79072805 LW |
3305 | PP(pp_ord) |
3306 | { | |
97aff369 | 3307 | dVAR; dSP; dTARGET; |
1eced8f8 | 3308 | |
7df053ec | 3309 | SV *argsv = POPs; |
ba210ebe | 3310 | STRLEN len; |
349d4f2f | 3311 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3312 | |
799ef3cb | 3313 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
1eced8f8 | 3314 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
799ef3cb | 3315 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
121910a4 JH |
3316 | argsv = tmpsv; |
3317 | } | |
79072805 | 3318 | |
872c91ae | 3319 | XPUSHu(DO_UTF8(argsv) ? |
89ebb4a3 | 3320 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
5fc32dea | 3321 | (UV)(*s & 0xff)); |
68795e93 | 3322 | |
79072805 LW |
3323 | RETURN; |
3324 | } | |
3325 | ||
463ee0b2 LW |
3326 | PP(pp_chr) |
3327 | { | |
97aff369 | 3328 | dVAR; dSP; dTARGET; |
463ee0b2 | 3329 | char *tmps; |
8a064bd6 JH |
3330 | UV value; |
3331 | ||
3332 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
3333 | || | |
3334 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
3335 | if (IN_BYTES) { | |
3336 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
3337 | } else { | |
3338 | (void) POPs; /* Ignore the argument value. */ | |
3339 | value = UNICODE_REPLACEMENT; | |
3340 | } | |
3341 | } else { | |
3342 | value = POPu; | |
3343 | } | |
463ee0b2 | 3344 | |
862a34c6 | 3345 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3346 | |
0064a8a9 | 3347 | if (value > 255 && !IN_BYTES) { |
eb160463 | 3348 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
62961d2e | 3349 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3350 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3351 | *tmps = '\0'; |
3352 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3353 | SvUTF8_on(TARG); |
a0ed51b3 LW |
3354 | XPUSHs(TARG); |
3355 | RETURN; | |
3356 | } | |
3357 | ||
748a9306 | 3358 | SvGROW(TARG,2); |
463ee0b2 LW |
3359 | SvCUR_set(TARG, 1); |
3360 | tmps = SvPVX(TARG); | |
eb160463 | 3361 | *tmps++ = (char)value; |
748a9306 | 3362 | *tmps = '\0'; |
a0d0e21e | 3363 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3364 | |
88632417 | 3365 | if (PL_encoding && !IN_BYTES) { |
799ef3cb | 3366 | sv_recode_to_utf8(TARG, PL_encoding); |
88632417 JH |
3367 | tmps = SvPVX(TARG); |
3368 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
4c5ed6e2 TS |
3369 | UNICODE_IS_REPLACEMENT(utf8_to_uvchr((U8*)tmps, NULL))) { |
3370 | SvGROW(TARG, 2); | |
d5a15ac2 | 3371 | tmps = SvPVX(TARG); |
4c5ed6e2 TS |
3372 | SvCUR_set(TARG, 1); |
3373 | *tmps++ = (char)value; | |
88632417 | 3374 | *tmps = '\0'; |
4c5ed6e2 | 3375 | SvUTF8_off(TARG); |
88632417 JH |
3376 | } |
3377 | } | |
4c5ed6e2 | 3378 | |
463ee0b2 LW |
3379 | XPUSHs(TARG); |
3380 | RETURN; | |
3381 | } | |
3382 | ||
79072805 LW |
3383 | PP(pp_crypt) |
3384 | { | |
79072805 | 3385 | #ifdef HAS_CRYPT |
97aff369 | 3386 | dVAR; dSP; dTARGET; |
5f74f29c | 3387 | dPOPTOPssrl; |
85c16d83 | 3388 | STRLEN len; |
10516c54 | 3389 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3390 | |
85c16d83 | 3391 | if (DO_UTF8(left)) { |
2bc69dc4 | 3392 | /* If Unicode, try to downgrade. |
f2791508 JH |
3393 | * If not possible, croak. |
3394 | * Yes, we made this up. */ | |
1b6737cc | 3395 | SV* const tsv = sv_2mortal(newSVsv(left)); |
2bc69dc4 | 3396 | |
f2791508 | 3397 | SvUTF8_on(tsv); |
2bc69dc4 | 3398 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3399 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3400 | } |
05404ffe JH |
3401 | # ifdef USE_ITHREADS |
3402 | # ifdef HAS_CRYPT_R | |
3403 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3404 | /* This should be threadsafe because in ithreads there is only | |
3405 | * one thread per interpreter. If this would not be true, | |
3406 | * we would need a mutex to protect this malloc. */ | |
3407 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3408 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3409 | #if defined(__GLIBC__) || defined(__EMX__) | |
3410 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3411 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3412 | /* work around glibc-2.2.5 bug */ | |
3413 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3414 | } | |
05404ffe | 3415 | #endif |
6ab58e4d | 3416 | } |
05404ffe JH |
3417 | # endif /* HAS_CRYPT_R */ |
3418 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3419 | # ifdef FCRYPT |
83003860 | 3420 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3421 | # else |
83003860 | 3422 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3423 | # endif |
ec93b65f | 3424 | SETTARG; |
4808266b | 3425 | RETURN; |
79072805 | 3426 | #else |
b13b2135 | 3427 | DIE(aTHX_ |
79072805 LW |
3428 | "The crypt() function is unimplemented due to excessive paranoia."); |
3429 | #endif | |
79072805 LW |
3430 | } |
3431 | ||
00f254e2 KW |
3432 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3433 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3434 | ||
00f254e2 | 3435 | /* Generates code to store a unicode codepoint c that is known to occupy |
12b093a1 KW |
3436 | * exactly two UTF-8 and UTF-EBCDIC bytes; it is stored into p and p+1, |
3437 | * and p is advanced to point to the next available byte after the two bytes */ | |
00f254e2 KW |
3438 | #define CAT_UNI_TO_UTF8_TWO_BYTE(p, c) \ |
3439 | STMT_START { \ | |
3440 | *(p)++ = UTF8_TWO_BYTE_HI(c); \ | |
3441 | *((p)++) = UTF8_TWO_BYTE_LO(c); \ | |
3442 | } STMT_END | |
3443 | ||
79072805 LW |
3444 | PP(pp_ucfirst) |
3445 | { | |
00f254e2 KW |
3446 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3447 | * changes. This means that possibly we can change in-place, ie., just | |
3448 | * take the source and change that one character and store it back, but not | |
3449 | * if read-only etc, or if the length changes */ | |
3450 | ||
97aff369 | 3451 | dVAR; |
39644a26 | 3452 | dSP; |
d54190f6 | 3453 | SV *source = TOPs; |
00f254e2 | 3454 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3455 | STRLEN need; |
3456 | SV *dest; | |
00f254e2 KW |
3457 | bool inplace; /* ? Convert first char only, in-place */ |
3458 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3459 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3460 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3461 | const U8 *s; |
3462 | U8 *d; | |
3463 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3464 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3465 | * stored as UTF-8 at s. */ | |
3466 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3467 | * lowercased) character stored in tmpbuf. May be either | |
3468 | * UTF-8 or not, but in either case is the number of bytes */ | |
d54190f6 NC |
3469 | |
3470 | SvGETMAGIC(source); | |
3471 | if (SvOK(source)) { | |
3472 | s = (const U8*)SvPV_nomg_const(source, slen); | |
3473 | } else { | |
0a0ffbce RGS |
3474 | if (ckWARN(WARN_UNINITIALIZED)) |
3475 | report_uninit(source); | |
1eced8f8 | 3476 | s = (const U8*)""; |
d54190f6 NC |
3477 | slen = 0; |
3478 | } | |
a0ed51b3 | 3479 | |
00f254e2 KW |
3480 | /* We may be able to get away with changing only the first character, in |
3481 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3482 | * not convert in-place. */ | |
3483 | inplace = SvPADTMP(source) && !SvREADONLY(source) && SvTEMP(source); | |
3484 | ||
3485 | /* First calculate what the changed first character should be. This affects | |
3486 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3487 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3488 | ||
3489 | if (! slen) { /* If empty */ | |
3490 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3491 | ulen = 0; |
00f254e2 KW |
3492 | } |
3493 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3494 | doing_utf8 = TRUE; |
17e95c9d KW |
3495 | ulen = UTF8SKIP(s); |
3496 | if (op_type == OP_UCFIRST) toTITLE_utf8(s, tmpbuf, &tculen); | |
3497 | else toLOWER_utf8(s, tmpbuf, &tculen); | |
00f254e2 | 3498 | |
17e95c9d KW |
3499 | /* we can't do in-place if the length changes. */ |
3500 | if (ulen != tculen) inplace = FALSE; | |
3501 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3502 | } |
00f254e2 KW |
3503 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3504 | * latin1 is treated as caseless. Note that a locale takes | |
3505 | * precedence */ | |
167d19f2 | 3506 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3507 | tculen = 1; /* Most characters will require one byte, but this will |
3508 | * need to be overridden for the tricky ones */ | |
3509 | need = slen + 1; | |
3510 | ||
3511 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3512 | |
00f254e2 KW |
3513 | /* lower case the first letter: no trickiness for any character */ |
3514 | *tmpbuf = (IN_LOCALE_RUNTIME) ? toLOWER_LC(*s) : | |
3515 | ((IN_UNI_8_BIT) ? toLOWER_LATIN1(*s) : toLOWER(*s)); | |
3516 | } | |
3517 | /* is ucfirst() */ | |
3518 | else if (IN_LOCALE_RUNTIME) { | |
3519 | *tmpbuf = toUPPER_LC(*s); /* This would be a bug if any locales | |
3520 | * have upper and title case different | |
3521 | */ | |
3522 | } | |
3523 | else if (! IN_UNI_8_BIT) { | |
3524 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3525 | * on EBCDIC machines whatever the | |
3526 | * native function does */ | |
3527 | } | |
3528 | else { /* is ucfirst non-UTF-8, not in locale, and cased latin1 */ | |
167d19f2 KW |
3529 | UV title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); |
3530 | if (tculen > 1) { | |
3531 | assert(tculen == 2); | |
3532 | ||
3533 | /* If the result is an upper Latin1-range character, it can | |
3534 | * still be represented in one byte, which is its ordinal */ | |
3535 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3536 | *tmpbuf = (U8) title_ord; | |
3537 | tculen = 1; | |
00f254e2 KW |
3538 | } |
3539 | else { | |
167d19f2 KW |
3540 | /* Otherwise it became more than one ASCII character (in |
3541 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3542 | * beyond Latin1, so the number of bytes changed, so can't | |
3543 | * replace just the first character in place. */ | |
3544 | inplace = FALSE; | |
3545 | ||
3546 | /* If the result won't fit in a byte, the entire result will | |
3547 | * have to be in UTF-8. Assume worst case sizing in | |
3548 | * conversion. (all latin1 characters occupy at most two bytes | |
3549 | * in utf8) */ | |
3550 | if (title_ord > 255) { | |
3551 | doing_utf8 = TRUE; | |
3552 | convert_source_to_utf8 = TRUE; | |
3553 | need = slen * 2 + 1; | |
3554 | ||
3555 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
3556 | * (both) characters whose title case is above 255 is | |
3557 | * 2. */ | |
3558 | ulen = 2; | |
3559 | } | |
3560 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3561 | need = slen + 1 + 1; | |
3562 | } | |
00f254e2 | 3563 | } |
167d19f2 | 3564 | } |
00f254e2 KW |
3565 | } /* End of use Unicode (Latin1) semantics */ |
3566 | } /* End of changing the case of the first character */ | |
3567 | ||
3568 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3569 | * generate the result */ | |
3570 | if (inplace) { | |
3571 | ||
3572 | /* We can convert in place. This means we change just the first | |
3573 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3574 | dest = source; |
3575 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3576 | } else { | |
3577 | dTARGET; | |
3578 | ||
3579 | dest = TARG; | |
3580 | ||
00f254e2 KW |
3581 | /* Here, we can't convert in place; we earlier calculated how much |
3582 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3583 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3584 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3585 | (void)SvPOK_only(dest); |
3586 | ||
3587 | SETs(dest); | |
d54190f6 | 3588 | } |
44bc797b | 3589 | |
d54190f6 | 3590 | if (doing_utf8) { |
00f254e2 KW |
3591 | if (! inplace) { |
3592 | if (! convert_source_to_utf8) { | |
3593 | ||
3594 | /* Here both source and dest are in UTF-8, but have to create | |
3595 | * the entire output. We initialize the result to be the | |
3596 | * title/lower cased first character, and then append the rest | |
3597 | * of the string. */ | |
3598 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3599 | if (slen > ulen) { | |
3600 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3601 | } | |
3602 | } | |
3603 | else { | |
3604 | const U8 *const send = s + slen; | |
3605 | ||
3606 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3607 | * except we earlier UTF-8'd the first character of the source | |
3608 | * into tmpbuf. First put that into dest, and then append the | |
3609 | * rest of the source, converting it to UTF-8 as we go. */ | |
3610 | ||
3611 | /* Assert tculen is 2 here because the only two characters that | |
3612 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3613 | *d++ = *tmpbuf; | |
3614 | *d++ = *(tmpbuf + 1); | |
3615 | s++; /* We have just processed the 1st char */ | |
3616 | ||
3617 | for (; s < send; s++) { | |
3618 | d = uvchr_to_utf8(d, *s); | |
3619 | } | |
3620 | *d = '\0'; | |
3621 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3622 | } | |
d54190f6 | 3623 | SvUTF8_on(dest); |
a0ed51b3 | 3624 | } |
00f254e2 | 3625 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3626 | Copy(tmpbuf, d, tculen, U8); |
3627 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3628 | } |
a0ed51b3 | 3629 | } |
00f254e2 KW |
3630 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3631 | if (slen) { | |
2de3dbcc | 3632 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3633 | TAINT; |
d54190f6 | 3634 | SvTAINTED_on(dest); |
31351b04 | 3635 | } |
00f254e2 KW |
3636 | if (inplace) { /* in-place, only need to change the 1st char */ |
3637 | *d = *tmpbuf; | |
3638 | } | |
3639 | else { /* Not in-place */ | |
3640 | ||
3641 | /* Copy the case-changed character(s) from tmpbuf */ | |
3642 | Copy(tmpbuf, d, tculen, U8); | |
3643 | d += tculen - 1; /* Code below expects d to point to final | |
3644 | * character stored */ | |
3645 | } | |
3646 | } | |
3647 | else { /* empty source */ | |
3648 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3649 | *d = *s; |
3650 | } | |
3651 | ||
00f254e2 KW |
3652 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3653 | * the destination to retain that flag */ | |
d54190f6 NC |
3654 | if (SvUTF8(source)) |
3655 | SvUTF8_on(dest); | |
3656 | ||
00f254e2 | 3657 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3658 | /* This will copy the trailing NUL */ |
3659 | Copy(s + 1, d + 1, slen, U8); | |
3660 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3661 | } |
bbce6d69 | 3662 | } |
539689e7 FC |
3663 | if (dest != source && SvTAINTED(source)) |
3664 | SvTAINT(dest); | |
d54190f6 | 3665 | SvSETMAGIC(dest); |
79072805 LW |
3666 | RETURN; |
3667 | } | |
3668 | ||
67306194 NC |
3669 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
3670 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 3671 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
3672 | PP(pp_uc) |
3673 | { | |
97aff369 | 3674 | dVAR; |
39644a26 | 3675 | dSP; |
67306194 | 3676 | SV *source = TOPs; |
463ee0b2 | 3677 | STRLEN len; |
67306194 NC |
3678 | STRLEN min; |
3679 | SV *dest; | |
3680 | const U8 *s; | |
3681 | U8 *d; | |
79072805 | 3682 | |
67306194 NC |
3683 | SvGETMAGIC(source); |
3684 | ||
3685 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
00f254e2 KW |
3686 | && SvTEMP(source) && !DO_UTF8(source) |
3687 | && (IN_LOCALE_RUNTIME || ! IN_UNI_8_BIT)) { | |
3688 | ||
3689 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
3690 | * make the loop tight, so we overwrite the source with the dest before | |
3691 | * looking at it, and we need to look at the original source | |
3692 | * afterwards. There would also need to be code added to handle | |
3693 | * switching to not in-place in midstream if we run into characters | |
3694 | * that change the length. | |
3695 | */ | |
67306194 NC |
3696 | dest = source; |
3697 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3698 | min = len + 1; | |
3699 | } else { | |
a0ed51b3 | 3700 | dTARGET; |
a0ed51b3 | 3701 | |
67306194 | 3702 | dest = TARG; |
128c9517 | 3703 | |
67306194 NC |
3704 | /* The old implementation would copy source into TARG at this point. |
3705 | This had the side effect that if source was undef, TARG was now | |
3706 | an undefined SV with PADTMP set, and they don't warn inside | |
3707 | sv_2pv_flags(). However, we're now getting the PV direct from | |
3708 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
3709 | little games. */ | |
3710 | ||
3711 | if (SvOK(source)) { | |
3712 | s = (const U8*)SvPV_nomg_const(source, len); | |
3713 | } else { | |
0a0ffbce RGS |
3714 | if (ckWARN(WARN_UNINITIALIZED)) |
3715 | report_uninit(source); | |
1eced8f8 | 3716 | s = (const U8*)""; |
67306194 | 3717 | len = 0; |
a0ed51b3 | 3718 | } |
67306194 NC |
3719 | min = len + 1; |
3720 | ||
3721 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 3722 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
3723 | (void)SvPOK_only(dest); |
3724 | ||
3725 | SETs(dest); | |
a0ed51b3 | 3726 | } |
31351b04 | 3727 | |
67306194 NC |
3728 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
3729 | to check DO_UTF8 again here. */ | |
3730 | ||
3731 | if (DO_UTF8(source)) { | |
3732 | const U8 *const send = s + len; | |
3733 | U8 tmpbuf[UTF8_MAXBYTES+1]; | |
3734 | ||
4c8a458a KW |
3735 | /* All occurrences of these are to be moved to follow any other marks. |
3736 | * This is context-dependent. We may not be passed enough context to | |
3737 | * move the iota subscript beyond all of them, but we do the best we can | |
3738 | * with what we're given. The result is always better than if we | |
3739 | * hadn't done this. And, the problem would only arise if we are | |
3740 | * passed a character without all its combining marks, which would be | |
3741 | * the caller's mistake. The information this is based on comes from a | |
3742 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
3743 | * itself) and so can't be checked properly to see if it ever gets | |
3744 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 3745 | bool in_iota_subscript = FALSE; |
00f254e2 | 3746 | |
67306194 | 3747 | while (s < send) { |
3e16b0e6 KW |
3748 | STRLEN u; |
3749 | STRLEN ulen; | |
3750 | UV uv; | |
00f254e2 | 3751 | if (in_iota_subscript && ! is_utf8_mark(s)) { |
3e16b0e6 | 3752 | |
00f254e2 KW |
3753 | /* A non-mark. Time to output the iota subscript */ |
3754 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 | |
3755 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
3756 | ||
3757 | CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
3758 | in_iota_subscript = FALSE; | |
8e058693 | 3759 | } |
00f254e2 | 3760 | |
8e058693 KW |
3761 | /* Then handle the current character. Get the changed case value |
3762 | * and copy it to the output buffer */ | |
00f254e2 | 3763 | |
8e058693 KW |
3764 | u = UTF8SKIP(s); |
3765 | uv = toUPPER_utf8(s, tmpbuf, &ulen); | |
3766 | if (uv == GREEK_CAPITAL_LETTER_IOTA | |
3767 | && utf8_to_uvchr(s, 0) == COMBINING_GREEK_YPOGEGRAMMENI) | |
3768 | { | |
3769 | in_iota_subscript = TRUE; | |
3770 | } | |
3771 | else { | |
3772 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
3773 | /* If the eventually required minimum size outgrows the | |
3774 | * available space, we need to grow. */ | |
3775 | const UV o = d - (U8*)SvPVX_const(dest); | |
3776 | ||
3777 | /* If someone uppercases one million U+03B0s we SvGROW() | |
3778 | * one million times. Or we could try guessing how much to | |
3779 | * allocate without allocating too much. Such is life. | |
3780 | * See corresponding comment in lc code for another option | |
3781 | * */ | |
3782 | SvGROW(dest, min); | |
3783 | d = (U8*)SvPVX(dest) + o; | |
3784 | } | |
3785 | Copy(tmpbuf, d, ulen, U8); | |
3786 | d += ulen; | |
3787 | } | |
3788 | s += u; | |
67306194 | 3789 | } |
4c8a458a KW |
3790 | if (in_iota_subscript) { |
3791 | CAT_UNI_TO_UTF8_TWO_BYTE(d, GREEK_CAPITAL_LETTER_IOTA); | |
3792 | } | |
67306194 NC |
3793 | SvUTF8_on(dest); |
3794 | *d = '\0'; | |
3795 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4c8a458a KW |
3796 | } |
3797 | else { /* Not UTF-8 */ | |
67306194 NC |
3798 | if (len) { |
3799 | const U8 *const send = s + len; | |
00f254e2 KW |
3800 | |
3801 | /* Use locale casing if in locale; regular style if not treating | |
3802 | * latin1 as having case; otherwise the latin1 casing. Do the | |
3803 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 3804 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3805 | TAINT; |
67306194 NC |
3806 | SvTAINTED_on(dest); |
3807 | for (; s < send; d++, s++) | |
3808 | *d = toUPPER_LC(*s); | |
31351b04 | 3809 | } |
00f254e2 KW |
3810 | else if (! IN_UNI_8_BIT) { |
3811 | for (; s < send; d++, s++) { | |
67306194 | 3812 | *d = toUPPER(*s); |
00f254e2 | 3813 | } |
31351b04 | 3814 | } |
00f254e2 KW |
3815 | else { |
3816 | for (; s < send; d++, s++) { | |
3817 | *d = toUPPER_LATIN1_MOD(*s); | |
e67da29c | 3818 | if (LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS)) continue; |
00f254e2 KW |
3819 | |
3820 | /* The mainstream case is the tight loop above. To avoid | |
3821 | * extra tests in that, all three characters that require | |
3822 | * special handling are mapped by the MOD to the one tested | |
3823 | * just above. | |
3824 | * Use the source to distinguish between the three cases */ | |
3825 | ||
3826 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
3827 | ||
3828 | /* uc() of this requires 2 characters, but they are | |
3829 | * ASCII. If not enough room, grow the string */ | |
3830 | if (SvLEN(dest) < ++min) { | |
3831 | const UV o = d - (U8*)SvPVX_const(dest); | |
3832 | SvGROW(dest, min); | |
3833 | d = (U8*)SvPVX(dest) + o; | |
3834 | } | |
3835 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
3836 | continue; /* Back to the tight loop; still in ASCII */ | |
3837 | } | |
3838 | ||
3839 | /* The other two special handling characters have their | |
3840 | * upper cases outside the latin1 range, hence need to be | |
3841 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
3842 | * here we are somewhere in the middle of processing a | |
3843 | * non-UTF-8 string, and realize that we will have to convert | |
3844 | * the whole thing to UTF-8. What to do? There are | |
3845 | * several possibilities. The simplest to code is to | |
3846 | * convert what we have so far, set a flag, and continue on | |
3847 | * in the loop. The flag would be tested each time through | |
3848 | * the loop, and if set, the next character would be | |
3849 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
3850 | * to slow down the mainstream case at all for this fairly | |
3851 | * rare case, so I didn't want to add a test that didn't | |
3852 | * absolutely have to be there in the loop, besides the | |
3853 | * possibility that it would get too complicated for | |
3854 | * optimizers to deal with. Another possibility is to just | |
3855 | * give up, convert the source to UTF-8, and restart the | |
3856 | * function that way. Another possibility is to convert | |
3857 | * both what has already been processed and what is yet to | |
3858 | * come separately to UTF-8, then jump into the loop that | |
3859 | * handles UTF-8. But the most efficient time-wise of the | |
3860 | * ones I could think of is what follows, and turned out to | |
3861 | * not require much extra code. */ | |
3862 | ||
3863 | /* Convert what we have so far into UTF-8, telling the | |
3864 | * function that we know it should be converted, and to | |
3865 | * allow extra space for what we haven't processed yet. | |
3866 | * Assume the worst case space requirements for converting | |
3867 | * what we haven't processed so far: that it will require | |
3868 | * two bytes for each remaining source character, plus the | |
3869 | * NUL at the end. This may cause the string pointer to | |
3870 | * move, so re-find it. */ | |
3871 | ||
3872 | len = d - (U8*)SvPVX_const(dest); | |
3873 | SvCUR_set(dest, len); | |
3874 | len = sv_utf8_upgrade_flags_grow(dest, | |
3875 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3876 | (send -s) * 2 + 1); | |
3877 | d = (U8*)SvPVX(dest) + len; | |
3878 | ||
00f254e2 KW |
3879 | /* Now process the remainder of the source, converting to |
3880 | * upper and UTF-8. If a resulting byte is invariant in | |
3881 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
3882 | * append it to the output. */ | |
00f254e2 | 3883 | for (; s < send; s++) { |
0ecfbd28 KW |
3884 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); |
3885 | d += len; | |
00f254e2 KW |
3886 | } |
3887 | ||
3888 | /* Here have processed the whole source; no need to continue | |
3889 | * with the outer loop. Each character has been converted | |
3890 | * to upper case and converted to UTF-8 */ | |
3891 | ||
3892 | break; | |
3893 | } /* End of processing all latin1-style chars */ | |
3894 | } /* End of processing all chars */ | |
3895 | } /* End of source is not empty */ | |
3896 | ||
67306194 | 3897 | if (source != dest) { |
00f254e2 | 3898 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
3899 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
3900 | } | |
00f254e2 | 3901 | } /* End of isn't utf8 */ |
539689e7 FC |
3902 | if (dest != source && SvTAINTED(source)) |
3903 | SvTAINT(dest); | |
67306194 | 3904 | SvSETMAGIC(dest); |
79072805 LW |
3905 | RETURN; |
3906 | } | |
3907 | ||
3908 | PP(pp_lc) | |
3909 | { | |
97aff369 | 3910 | dVAR; |
39644a26 | 3911 | dSP; |
ec9af7d4 | 3912 | SV *source = TOPs; |
463ee0b2 | 3913 | STRLEN len; |
ec9af7d4 NC |
3914 | STRLEN min; |
3915 | SV *dest; | |
3916 | const U8 *s; | |
3917 | U8 *d; | |
79072805 | 3918 | |
ec9af7d4 NC |
3919 | SvGETMAGIC(source); |
3920 | ||
3921 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
17fa0776 | 3922 | && SvTEMP(source) && !DO_UTF8(source)) { |
ec9af7d4 | 3923 | |
00f254e2 KW |
3924 | /* We can convert in place, as lowercasing anything in the latin1 range |
3925 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
3926 | dest = source; |
3927 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3928 | min = len + 1; | |
3929 | } else { | |
a0ed51b3 | 3930 | dTARGET; |
a0ed51b3 | 3931 | |
ec9af7d4 NC |
3932 | dest = TARG; |
3933 | ||
3934 | /* The old implementation would copy source into TARG at this point. | |
3935 | This had the side effect that if source was undef, TARG was now | |
3936 | an undefined SV with PADTMP set, and they don't warn inside | |
3937 | sv_2pv_flags(). However, we're now getting the PV direct from | |
3938 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
3939 | little games. */ | |
3940 | ||
3941 | if (SvOK(source)) { | |
3942 | s = (const U8*)SvPV_nomg_const(source, len); | |
3943 | } else { | |
0a0ffbce RGS |
3944 | if (ckWARN(WARN_UNINITIALIZED)) |
3945 | report_uninit(source); | |
1eced8f8 | 3946 | s = (const U8*)""; |
ec9af7d4 | 3947 | len = 0; |
a0ed51b3 | 3948 | } |
ec9af7d4 | 3949 | min = len + 1; |
128c9517 | 3950 | |
ec9af7d4 | 3951 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3952 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
3953 | (void)SvPOK_only(dest); |
3954 | ||
3955 | SETs(dest); | |
3956 | } | |
3957 | ||
3958 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
3959 | to check DO_UTF8 again here. */ | |
3960 | ||
3961 | if (DO_UTF8(source)) { | |
3962 | const U8 *const send = s + len; | |
3963 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
3964 | ||
3965 | while (s < send) { | |
06b5486a KW |
3966 | const STRLEN u = UTF8SKIP(s); |
3967 | STRLEN ulen; | |
00f254e2 | 3968 | |
06b5486a | 3969 | toLOWER_utf8(s, tmpbuf, &ulen); |
00f254e2 | 3970 | |
06b5486a KW |
3971 | /* Here is where we would do context-sensitive actions. See the |
3972 | * commit message for this comment for why there isn't any */ | |
00f254e2 | 3973 | |
06b5486a | 3974 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 3975 | |
06b5486a KW |
3976 | /* If the eventually required minimum size outgrows the |
3977 | * available space, we need to grow. */ | |
3978 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 3979 | |
06b5486a KW |
3980 | /* If someone lowercases one million U+0130s we SvGROW() one |
3981 | * million times. Or we could try guessing how much to | |
3982 | * allocate without allocating too much. Such is life. | |
3983 | * Another option would be to grow an extra byte or two more | |
3984 | * each time we need to grow, which would cut down the million | |
3985 | * to 500K, with little waste */ | |
3986 | SvGROW(dest, min); | |
3987 | d = (U8*)SvPVX(dest) + o; | |
3988 | } | |
86510fb1 | 3989 | |
06b5486a KW |
3990 | /* Copy the newly lowercased letter to the output buffer we're |
3991 | * building */ | |
3992 | Copy(tmpbuf, d, ulen, U8); | |
3993 | d += ulen; | |
3994 | s += u; | |
00f254e2 | 3995 | } /* End of looping through the source string */ |
ec9af7d4 NC |
3996 | SvUTF8_on(dest); |
3997 | *d = '\0'; | |
3998 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
00f254e2 | 3999 | } else { /* Not utf8 */ |
31351b04 | 4000 | if (len) { |
ec9af7d4 | 4001 | const U8 *const send = s + len; |
00f254e2 KW |
4002 | |
4003 | /* Use locale casing if in locale; regular style if not treating | |
4004 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4005 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 4006 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 4007 | TAINT; |
ec9af7d4 NC |
4008 | SvTAINTED_on(dest); |
4009 | for (; s < send; d++, s++) | |
4010 | *d = toLOWER_LC(*s); | |
31351b04 | 4011 | } |
00f254e2 KW |
4012 | else if (! IN_UNI_8_BIT) { |
4013 | for (; s < send; d++, s++) { | |
ec9af7d4 | 4014 | *d = toLOWER(*s); |
00f254e2 KW |
4015 | } |
4016 | } | |
4017 | else { | |
4018 | for (; s < send; d++, s++) { | |
4019 | *d = toLOWER_LATIN1(*s); | |
4020 | } | |
31351b04 | 4021 | } |
bbce6d69 | 4022 | } |
ec9af7d4 NC |
4023 | if (source != dest) { |
4024 | *d = '\0'; | |
4025 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4026 | } | |
79072805 | 4027 | } |
539689e7 FC |
4028 | if (dest != source && SvTAINTED(source)) |
4029 | SvTAINT(dest); | |
ec9af7d4 | 4030 | SvSETMAGIC(dest); |
79072805 LW |
4031 | RETURN; |
4032 | } | |
4033 | ||
a0d0e21e | 4034 | PP(pp_quotemeta) |
79072805 | 4035 | { |
97aff369 | 4036 | dVAR; dSP; dTARGET; |
1b6737cc | 4037 | SV * const sv = TOPs; |
a0d0e21e | 4038 | STRLEN len; |
0d46e09a | 4039 | register const char *s = SvPV_const(sv,len); |
79072805 | 4040 | |
7e2040f0 | 4041 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4042 | if (len) { |
1b6737cc | 4043 | register char *d; |
862a34c6 | 4044 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4045 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4046 | d = SvPVX(TARG); |
7e2040f0 | 4047 | if (DO_UTF8(sv)) { |
0dd2cdef | 4048 | while (len) { |
fd400ab9 | 4049 | if (UTF8_IS_CONTINUED(*s)) { |
0dd2cdef LW |
4050 | STRLEN ulen = UTF8SKIP(s); |
4051 | if (ulen > len) | |
4052 | ulen = len; | |
4053 | len -= ulen; | |
4054 | while (ulen--) | |
4055 | *d++ = *s++; | |
4056 | } | |
4057 | else { | |
4058 | if (!isALNUM(*s)) | |
4059 | *d++ = '\\'; | |
4060 | *d++ = *s++; | |
4061 | len--; | |
4062 | } | |
4063 | } | |
7e2040f0 | 4064 | SvUTF8_on(TARG); |
0dd2cdef LW |
4065 | } |
4066 | else { | |
4067 | while (len--) { | |
4068 | if (!isALNUM(*s)) | |
4069 | *d++ = '\\'; | |
4070 | *d++ = *s++; | |
4071 | } | |
79072805 | 4072 | } |
a0d0e21e | 4073 | *d = '\0'; |
349d4f2f | 4074 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4075 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4076 | } |
a0d0e21e LW |
4077 | else |
4078 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4079 | SETTARG; |
79072805 LW |
4080 | RETURN; |
4081 | } | |
4082 | ||
a0d0e21e | 4083 | /* Arrays. */ |
79072805 | 4084 | |
a0d0e21e | 4085 | PP(pp_aslice) |
79072805 | 4086 | { |
97aff369 | 4087 | dVAR; dSP; dMARK; dORIGMARK; |
502c6561 | 4088 | register AV *const av = MUTABLE_AV(POPs); |
1b6737cc | 4089 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
79072805 | 4090 | |
a0d0e21e | 4091 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4092 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4093 | bool can_preserve = FALSE; | |
4094 | ||
4095 | if (localizing) { | |
4096 | MAGIC *mg; | |
4097 | HV *stash; | |
4098 | ||
4099 | can_preserve = SvCANEXISTDELETE(av); | |
4100 | } | |
4101 | ||
4102 | if (lval && localizing) { | |
1b6737cc | 4103 | register SV **svp; |
748a9306 | 4104 | I32 max = -1; |
924508f0 | 4105 | for (svp = MARK + 1; svp <= SP; svp++) { |
4ea561bc | 4106 | const I32 elem = SvIV(*svp); |
748a9306 LW |
4107 | if (elem > max) |
4108 | max = elem; | |
4109 | } | |
4110 | if (max > AvMAX(av)) | |
4111 | av_extend(av, max); | |
4112 | } | |
4ad10a0b | 4113 | |
a0d0e21e | 4114 | while (++MARK <= SP) { |
1b6737cc | 4115 | register SV **svp; |
4ea561bc | 4116 | I32 elem = SvIV(*MARK); |
4ad10a0b | 4117 | bool preeminent = TRUE; |
a0d0e21e | 4118 | |
4ad10a0b VP |
4119 | if (localizing && can_preserve) { |
4120 | /* If we can determine whether the element exist, | |
4121 | * Try to preserve the existenceness of a tied array | |
4122 | * element by using EXISTS and DELETE if possible. | |
4123 | * Fallback to FETCH and STORE otherwise. */ | |
4124 | preeminent = av_exists(av, elem); | |
4125 | } | |
4126 | ||
a0d0e21e LW |
4127 | svp = av_fetch(av, elem, lval); |
4128 | if (lval) { | |
3280af22 | 4129 | if (!svp || *svp == &PL_sv_undef) |
cea2e8a9 | 4130 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4131 | if (localizing) { |
4132 | if (preeminent) | |
4133 | save_aelem(av, elem, svp); | |
4134 | else | |
4135 | SAVEADELETE(av, elem); | |
4136 | } | |
79072805 | 4137 | } |
3280af22 | 4138 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4139 | } |
4140 | } | |
748a9306 | 4141 | if (GIMME != G_ARRAY) { |
a0d0e21e | 4142 | MARK = ORIGMARK; |
04ab2c87 | 4143 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4144 | SP = MARK; |
4145 | } | |
79072805 LW |
4146 | RETURN; |
4147 | } | |
4148 | ||
cba5a3b0 DG |
4149 | /* Smart dereferencing for keys, values and each */ |
4150 | PP(pp_rkeys) | |
4151 | { | |
4152 | dVAR; | |
4153 | dSP; | |
4154 | dPOPss; | |
4155 | ||
7ac5715b FC |
4156 | SvGETMAGIC(sv); |
4157 | ||
4158 | if ( | |
4159 | !SvROK(sv) | |
4160 | || (sv = SvRV(sv), | |
4161 | (SvTYPE(sv) != SVt_PVHV && SvTYPE(sv) != SVt_PVAV) | |
4162 | || SvOBJECT(sv) | |
4163 | ) | |
4164 | ) { | |
4165 | DIE(aTHX_ | |
4166 | "Type of argument to %s must be unblessed hashref or arrayref", | |
4c540399 | 4167 | PL_op_desc[PL_op->op_type] ); |
cba5a3b0 DG |
4168 | } |
4169 | ||
d8065907 FC |
4170 | if (PL_op->op_flags & OPf_SPECIAL && SvTYPE(sv) == SVt_PVAV) |
4171 | DIE(aTHX_ | |
4172 | "Can't modify %s in %s", | |
4173 | PL_op_desc[PL_op->op_type], PL_op_desc[PL_op->op_next->op_type] | |
4174 | ); | |
4175 | ||
cba5a3b0 DG |
4176 | /* Delegate to correct function for op type */ |
4177 | PUSHs(sv); | |
4178 | if (PL_op->op_type == OP_RKEYS || PL_op->op_type == OP_RVALUES) { | |
4179 | return (SvTYPE(sv) == SVt_PVHV) ? Perl_do_kv(aTHX) : Perl_pp_akeys(aTHX); | |
4180 | } | |
4181 | else { | |
4182 | return (SvTYPE(sv) == SVt_PVHV) ? Perl_pp_each(aTHX) : Perl_pp_aeach(aTHX); | |
4183 | } | |
4184 | } | |
4185 | ||
878d132a NC |
4186 | PP(pp_aeach) |
4187 | { | |
4188 | dVAR; | |
4189 | dSP; | |
502c6561 | 4190 | AV *array = MUTABLE_AV(POPs); |
878d132a | 4191 | const I32 gimme = GIMME_V; |
453d94a9 | 4192 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4193 | const IV current = (*iterp)++; |
4194 | ||
4195 | if (current > av_len(array)) { | |
4196 | *iterp = 0; | |
4197 | if (gimme == G_SCALAR) | |
4198 | RETPUSHUNDEF; | |
4199 | else | |
4200 | RETURN; | |
4201 | } | |
4202 | ||
4203 | EXTEND(SP, 2); | |
e1dccc0d | 4204 | mPUSHi(current); |
878d132a NC |
4205 | if (gimme == G_ARRAY) { |
4206 | SV **const element = av_fetch(array, current, 0); | |
4207 | PUSHs(element ? *element : &PL_sv_undef); | |
4208 | } | |
4209 | RETURN; | |
4210 | } | |
4211 | ||
4212 | PP(pp_akeys) | |
4213 | { | |
4214 | dVAR; | |
4215 | dSP; | |
502c6561 | 4216 | AV *array = MUTABLE_AV(POPs); |
878d132a NC |
4217 | const I32 gimme = GIMME_V; |
4218 | ||
4219 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4220 | ||
4221 | if (gimme == G_SCALAR) { | |
4222 | dTARGET; | |
4223 | PUSHi(av_len(array) + 1); | |
4224 | } | |
4225 | else if (gimme == G_ARRAY) { | |
4226 | IV n = Perl_av_len(aTHX_ array); | |
e1dccc0d | 4227 | IV i; |
878d132a NC |
4228 | |
4229 | EXTEND(SP, n + 1); | |
4230 | ||
cba5a3b0 | 4231 | if (PL_op->op_type == OP_AKEYS || PL_op->op_type == OP_RKEYS) { |
e1dccc0d | 4232 | for (i = 0; i <= n; i++) { |
878d132a NC |
4233 | mPUSHi(i); |
4234 | } | |
4235 | } | |
4236 | else { | |
4237 | for (i = 0; i <= n; i++) { | |
4238 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4239 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4240 | } | |
4241 | } | |
4242 | } | |
4243 | RETURN; | |
4244 | } | |
4245 | ||
79072805 LW |
4246 | /* Associative arrays. */ |
4247 | ||
4248 | PP(pp_each) | |
4249 | { | |
97aff369 | 4250 | dVAR; |
39644a26 | 4251 | dSP; |
85fbaab2 | 4252 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4253 | HE *entry; |
f54cb97a | 4254 | const I32 gimme = GIMME_V; |
8ec5e241 | 4255 | |
c07a80fd | 4256 | PUTBACK; |
c750a3ec | 4257 | /* might clobber stack_sp */ |
6d822dc4 | 4258 | entry = hv_iternext(hash); |
c07a80fd | 4259 | SPAGAIN; |
79072805 | 4260 | |
79072805 LW |
4261 | EXTEND(SP, 2); |
4262 | if (entry) { | |
1b6737cc | 4263 | SV* const sv = hv_iterkeysv(entry); |
574c8022 | 4264 | PUSHs(sv); /* won't clobber stack_sp */ |
54310121 | 4265 | if (gimme == G_ARRAY) { |
59af0135 | 4266 | SV *val; |
c07a80fd | 4267 | PUTBACK; |
c750a3ec | 4268 | /* might clobber stack_sp */ |
6d822dc4 | 4269 | val = hv_iterval(hash, entry); |
c07a80fd | 4270 | SPAGAIN; |
59af0135 | 4271 | PUSHs(val); |
79072805 | 4272 | } |
79072805 | 4273 | } |
54310121 | 4274 | else if (gimme == G_SCALAR) |
79072805 LW |
4275 | RETPUSHUNDEF; |
4276 | ||
4277 | RETURN; | |
4278 | } | |
4279 | ||
7332a6c4 VP |
4280 | STATIC OP * |
4281 | S_do_delete_local(pTHX) | |
79072805 | 4282 | { |
97aff369 | 4283 | dVAR; |
39644a26 | 4284 | dSP; |
f54cb97a | 4285 | const I32 gimme = GIMME_V; |
7332a6c4 VP |
4286 | const MAGIC *mg; |
4287 | HV *stash; | |
4288 | ||
4289 | if (PL_op->op_private & OPpSLICE) { | |
4290 | dMARK; dORIGMARK; | |
4291 | SV * const osv = POPs; | |
4292 | const bool tied = SvRMAGICAL(osv) | |
4293 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
4294 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
4295 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
4296 | const U32 type = SvTYPE(osv); | |
4297 | if (type == SVt_PVHV) { /* hash element */ | |
4298 | HV * const hv = MUTABLE_HV(osv); | |
4299 | while (++MARK <= SP) { | |
4300 | SV * const keysv = *MARK; | |
4301 | SV *sv = NULL; | |
4302 | bool preeminent = TRUE; | |
4303 | if (can_preserve) | |
4304 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4305 | if (tied) { | |
4306 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4307 | if (he) | |
4308 | sv = HeVAL(he); | |
4309 | else | |
4310 | preeminent = FALSE; | |
4311 | } | |
4312 | else { | |
4313 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
4314 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4315 | } | |
4316 | if (preeminent) { | |
4317 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
4318 | if (tied) { | |
4319 | *MARK = sv_mortalcopy(sv); | |
4320 | mg_clear(sv); | |
4321 | } else | |
4322 | *MARK = sv; | |
4323 | } | |
4324 | else { | |
4325 | SAVEHDELETE(hv, keysv); | |
4326 | *MARK = &PL_sv_undef; | |
4327 | } | |
4328 | } | |
4329 | } | |
4330 | else if (type == SVt_PVAV) { /* array element */ | |
4331 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4332 | AV * const av = MUTABLE_AV(osv); | |
4333 | while (++MARK <= SP) { | |
4334 | I32 idx = SvIV(*MARK); | |
4335 | SV *sv = NULL; | |
4336 | bool preeminent = TRUE; | |
4337 | if (can_preserve) | |
4338 | preeminent = av_exists(av, idx); | |
4339 | if (tied) { | |
4340 | SV **svp = av_fetch(av, idx, 1); | |
4341 | if (svp) | |
4342 | sv = *svp; | |
4343 | else | |
4344 | preeminent = FALSE; | |
4345 | } | |
4346 | else { | |
4347 | sv = av_delete(av, idx, 0); | |
4348 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4349 | } | |
4350 | if (preeminent) { | |
4351 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4352 | if (tied) { | |
4353 | *MARK = sv_mortalcopy(sv); | |
4354 | mg_clear(sv); | |
4355 | } else | |
4356 | *MARK = sv; | |
4357 | } | |
4358 | else { | |
4359 | SAVEADELETE(av, idx); | |
4360 | *MARK = &PL_sv_undef; | |
4361 | } | |
4362 | } | |
4363 | } | |
4364 | } | |
4365 | else | |
4366 | DIE(aTHX_ "Not a HASH reference"); | |
4367 | if (gimme == G_VOID) | |
4368 | SP = ORIGMARK; | |
4369 | else if (gimme == G_SCALAR) { | |
4370 | MARK = ORIGMARK; | |
4371 | if (SP > MARK) | |
4372 | *++MARK = *SP; | |
4373 | else | |
4374 | *++MARK = &PL_sv_undef; | |
4375 | SP = MARK; | |
4376 | } | |
4377 | } | |
4378 | else { | |
4379 | SV * const keysv = POPs; | |
4380 | SV * const osv = POPs; | |
4381 | const bool tied = SvRMAGICAL(osv) | |
4382 | && mg_find((const SV *)osv, PERL_MAGIC_tied); | |
4383 | const bool can_preserve = SvCANEXISTDELETE(osv) | |
4384 | || mg_find((const SV *)osv, PERL_MAGIC_env); | |
4385 | const U32 type = SvTYPE(osv); | |
4386 | SV *sv = NULL; | |
4387 | if (type == SVt_PVHV) { | |
4388 | HV * const hv = MUTABLE_HV(osv); | |
4389 | bool preeminent = TRUE; | |
4390 | if (can_preserve) | |
4391 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4392 | if (tied) { | |
4393 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4394 | if (he) | |
4395 | sv = HeVAL(he); | |
4396 | else | |
4397 | preeminent = FALSE; | |
4398 | } | |
4399 | else { | |
4400 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
4401 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4402 | } | |
4403 | if (preeminent) { | |
4404 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); | |
4405 | if (tied) { | |
4406 | SV *nsv = sv_mortalcopy(sv); | |
4407 | mg_clear(sv); | |
4408 | sv = nsv; | |
4409 | } | |
4410 | } | |
4411 | else | |
4412 | SAVEHDELETE(hv, keysv); | |
4413 | } | |
4414 | else if (type == SVt_PVAV) { | |
4415 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4416 | AV * const av = MUTABLE_AV(osv); | |
4417 | I32 idx = SvIV(keysv); | |
4418 | bool preeminent = TRUE; | |
4419 | if (can_preserve) | |
4420 | preeminent = av_exists(av, idx); | |
4421 | if (tied) { | |
4422 | SV **svp = av_fetch(av, idx, 1); | |
4423 | if (svp) | |
4424 | sv = *svp; | |
4425 | else | |
4426 | preeminent = FALSE; | |
4427 | } | |
4428 | else { | |
4429 | sv = av_delete(av, idx, 0); | |
4430 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
4431 | } | |
4432 | if (preeminent) { | |
4433 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4434 | if (tied) { | |
4435 | SV *nsv = sv_mortalcopy(sv); | |
4436 | mg_clear(sv); | |
4437 | sv = nsv; | |
4438 | } | |
4439 | } | |
4440 | else | |
4441 | SAVEADELETE(av, idx); | |
4442 | } | |
4443 | else | |
4444 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4445 | } | |
4446 | else | |
4447 | DIE(aTHX_ "Not a HASH reference"); | |
4448 | if (!sv) | |
4449 | sv = &PL_sv_undef; | |
4450 | if (gimme != G_VOID) | |
4451 | PUSHs(sv); | |
4452 | } | |
4453 | ||
4454 | RETURN; | |
4455 | } | |
4456 | ||
4457 | PP(pp_delete) | |
4458 | { | |
4459 | dVAR; | |
4460 | dSP; | |
4461 | I32 gimme; | |
4462 | I32 discard; | |
4463 | ||
4464 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4465 | return do_delete_local(); | |
4466 | ||
4467 | gimme = GIMME_V; | |
4468 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4469 | |
533c011a | 4470 | if (PL_op->op_private & OPpSLICE) { |
5f05dabc | 4471 | dMARK; dORIGMARK; |
85fbaab2 | 4472 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4473 | const U32 hvtype = SvTYPE(hv); |
01020589 GS |
4474 | if (hvtype == SVt_PVHV) { /* hash element */ |
4475 | while (++MARK <= SP) { | |
1b6737cc | 4476 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
01020589 GS |
4477 | *MARK = sv ? sv : &PL_sv_undef; |
4478 | } | |
5f05dabc | 4479 | } |
6d822dc4 MS |
4480 | else if (hvtype == SVt_PVAV) { /* array element */ |
4481 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4482 | while (++MARK <= SP) { | |
502c6561 | 4483 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
6d822dc4 MS |
4484 | *MARK = sv ? sv : &PL_sv_undef; |
4485 | } | |
4486 | } | |
01020589 GS |
4487 | } |
4488 | else | |
4489 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4490 | if (discard) |
4491 | SP = ORIGMARK; | |
4492 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4493 | MARK = ORIGMARK; |
9111c9c0 DM |
4494 | if (SP > MARK) |
4495 | *++MARK = *SP; | |
4496 | else | |
4497 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4498 | SP = MARK; |
4499 | } | |
4500 | } | |
4501 | else { | |
4502 | SV *keysv = POPs; | |
85fbaab2 | 4503 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4504 | SV *sv = NULL; |
97fcbf96 MB |
4505 | if (SvTYPE(hv) == SVt_PVHV) |
4506 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4507 | else if (SvTYPE(hv) == SVt_PVAV) { |
4508 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 4509 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
4510 | else |
4511 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 4512 | } |
97fcbf96 | 4513 | else |
cea2e8a9 | 4514 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 4515 | if (!sv) |
3280af22 | 4516 | sv = &PL_sv_undef; |
54310121 | 4517 | if (!discard) |
4518 | PUSHs(sv); | |
79072805 | 4519 | } |
79072805 LW |
4520 | RETURN; |
4521 | } | |
4522 | ||
a0d0e21e | 4523 | PP(pp_exists) |
79072805 | 4524 | { |
97aff369 | 4525 | dVAR; |
39644a26 | 4526 | dSP; |
afebc493 GS |
4527 | SV *tmpsv; |
4528 | HV *hv; | |
4529 | ||
4530 | if (PL_op->op_private & OPpEXISTS_SUB) { | |
4531 | GV *gv; | |
0bd48802 | 4532 | SV * const sv = POPs; |
f2c0649b | 4533 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
4534 | if (cv) |
4535 | RETPUSHYES; | |
4536 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
4537 | RETPUSHYES; | |
4538 | RETPUSHNO; | |
4539 | } | |
4540 | tmpsv = POPs; | |
85fbaab2 | 4541 | hv = MUTABLE_HV(POPs); |
c750a3ec | 4542 | if (SvTYPE(hv) == SVt_PVHV) { |
ae77835f | 4543 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 4544 | RETPUSHYES; |
ef54e1a4 JH |
4545 | } |
4546 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 4547 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 4548 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
4549 | RETPUSHYES; |
4550 | } | |
ef54e1a4 JH |
4551 | } |
4552 | else { | |
cea2e8a9 | 4553 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 4554 | } |
a0d0e21e LW |
4555 | RETPUSHNO; |
4556 | } | |
79072805 | 4557 | |
a0d0e21e LW |
4558 | PP(pp_hslice) |
4559 | { | |
97aff369 | 4560 | dVAR; dSP; dMARK; dORIGMARK; |
85fbaab2 | 4561 | register HV * const hv = MUTABLE_HV(POPs); |
1b6737cc AL |
4562 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); |
4563 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
d30e492c | 4564 | bool can_preserve = FALSE; |
79072805 | 4565 | |
eb85dfd3 DM |
4566 | if (localizing) { |
4567 | MAGIC *mg; | |
4568 | HV *stash; | |
4569 | ||
d30e492c VP |
4570 | if (SvCANEXISTDELETE(hv) || mg_find((const SV *)hv, PERL_MAGIC_env)) |
4571 | can_preserve = TRUE; | |
eb85dfd3 DM |
4572 | } |
4573 | ||
6d822dc4 | 4574 | while (++MARK <= SP) { |
1b6737cc | 4575 | SV * const keysv = *MARK; |
6d822dc4 MS |
4576 | SV **svp; |
4577 | HE *he; | |
d30e492c VP |
4578 | bool preeminent = TRUE; |
4579 | ||
4580 | if (localizing && can_preserve) { | |
4581 | /* If we can determine whether the element exist, | |
4582 | * try to preserve the existenceness of a tied hash | |
4583 | * element by using EXISTS and DELETE if possible. | |
4584 | * Fallback to FETCH and STORE otherwise. */ | |
4585 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 4586 | } |
eb85dfd3 | 4587 | |
6d822dc4 | 4588 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 4589 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 4590 | |
6d822dc4 MS |
4591 | if (lval) { |
4592 | if (!svp || *svp == &PL_sv_undef) { | |
be2597df | 4593 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
4594 | } |
4595 | if (localizing) { | |
7a2e501a | 4596 | if (HvNAME_get(hv) && isGV(*svp)) |
159b6efe | 4597 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
4598 | else if (preeminent) |
4599 | save_helem_flags(hv, keysv, svp, | |
4600 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
4601 | else | |
4602 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
4603 | } |
4604 | } | |
4605 | *MARK = svp ? *svp : &PL_sv_undef; | |
79072805 | 4606 | } |
a0d0e21e LW |
4607 | if (GIMME != G_ARRAY) { |
4608 | MARK = ORIGMARK; | |
04ab2c87 | 4609 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 4610 | SP = MARK; |
79072805 | 4611 | } |
a0d0e21e LW |
4612 | RETURN; |
4613 | } | |
4614 | ||
4615 | /* List operators. */ | |
4616 | ||
4617 | PP(pp_list) | |
4618 | { | |
97aff369 | 4619 | dVAR; dSP; dMARK; |
a0d0e21e LW |
4620 | if (GIMME != G_ARRAY) { |
4621 | if (++MARK <= SP) | |
4622 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 4623 | else |
3280af22 | 4624 | *MARK = &PL_sv_undef; |
a0d0e21e | 4625 | SP = MARK; |
79072805 | 4626 | } |
a0d0e21e | 4627 | RETURN; |
79072805 LW |
4628 | } |
4629 | ||
a0d0e21e | 4630 | PP(pp_lslice) |
79072805 | 4631 | { |
97aff369 | 4632 | dVAR; |
39644a26 | 4633 | dSP; |
1b6737cc AL |
4634 | SV ** const lastrelem = PL_stack_sp; |
4635 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
4636 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
4637 | register SV ** const firstrelem = lastlelem + 1; | |
42e73ed0 | 4638 | I32 is_something_there = FALSE; |
1b6737cc AL |
4639 | |
4640 | register const I32 max = lastrelem - lastlelem; | |
a0d0e21e | 4641 | register SV **lelem; |
a0d0e21e LW |
4642 | |
4643 | if (GIMME != G_ARRAY) { | |
4ea561bc | 4644 | I32 ix = SvIV(*lastlelem); |
748a9306 LW |
4645 | if (ix < 0) |
4646 | ix += max; | |
a0d0e21e | 4647 | if (ix < 0 || ix >= max) |
3280af22 | 4648 | *firstlelem = &PL_sv_undef; |
a0d0e21e LW |
4649 | else |
4650 | *firstlelem = firstrelem[ix]; | |
4651 | SP = firstlelem; | |
4652 | RETURN; | |
4653 | } | |
4654 | ||
4655 | if (max == 0) { | |
4656 | SP = firstlelem - 1; | |
4657 | RETURN; | |
4658 | } | |
4659 | ||
4660 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 4661 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 4662 | if (ix < 0) |
a0d0e21e | 4663 | ix += max; |
c73bf8e3 HS |
4664 | if (ix < 0 || ix >= max) |
4665 | *lelem = &PL_sv_undef; | |
4666 | else { | |
4667 | is_something_there = TRUE; | |
4668 | if (!(*lelem = firstrelem[ix])) | |
3280af22 | 4669 | *lelem = &PL_sv_undef; |
748a9306 | 4670 | } |
79072805 | 4671 | } |
4633a7c4 LW |
4672 | if (is_something_there) |
4673 | SP = lastlelem; | |
4674 | else | |
4675 | SP = firstlelem - 1; | |
79072805 LW |
4676 | RETURN; |
4677 | } | |
4678 | ||
a0d0e21e LW |
4679 | PP(pp_anonlist) |
4680 | { | |
97aff369 | 4681 | dVAR; dSP; dMARK; dORIGMARK; |
1b6737cc | 4682 | const I32 items = SP - MARK; |
ad64d0ec | 4683 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
44a8e56a | 4684 | SP = ORIGMARK; /* av_make() might realloc stack_sp */ |
6e449a3a MHM |
4685 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
4686 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
4687 | RETURN; |
4688 | } | |
4689 | ||
4690 | PP(pp_anonhash) | |
79072805 | 4691 | { |
97aff369 | 4692 | dVAR; dSP; dMARK; dORIGMARK; |
78c72037 | 4693 | HV* const hv = newHV(); |
a0d0e21e LW |
4694 | |
4695 | while (MARK < SP) { | |
1b6737cc | 4696 | SV * const key = *++MARK; |
561b68a9 | 4697 | SV * const val = newSV(0); |
a0d0e21e LW |
4698 | if (MARK < SP) |
4699 | sv_setsv(val, *++MARK); | |
a2a5de95 NC |
4700 | else |
4701 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); | |
f12c7020 | 4702 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 4703 | } |
a0d0e21e | 4704 | SP = ORIGMARK; |
6e449a3a | 4705 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
ad64d0ec | 4706 | ? newRV_noinc(MUTABLE_SV(hv)) : MUTABLE_SV(hv)); |
79072805 LW |
4707 | RETURN; |
4708 | } | |
4709 | ||
d4fc4415 FC |
4710 | static AV * |
4711 | S_deref_plain_array(pTHX_ AV *ary) | |
4712 | { | |
4713 | if (SvTYPE(ary) == SVt_PVAV) return ary; | |
d2d95e13 | 4714 | SvGETMAGIC((SV *)ary); |
d4fc4415 FC |
4715 | if (!SvROK(ary) || SvTYPE(SvRV(ary)) != SVt_PVAV) |
4716 | Perl_die(aTHX_ "Not an ARRAY reference"); | |
4717 | else if (SvOBJECT(SvRV(ary))) | |
4718 | Perl_die(aTHX_ "Not an unblessed ARRAY reference"); | |
4719 | return (AV *)SvRV(ary); | |
4720 | } | |
4721 | ||
4722 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) | |
4723 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4724 | ({ \ | |
4725 | AV *aRrRay = ary; \ | |
4726 | SvTYPE(aRrRay) == SVt_PVAV \ | |
4727 | ? aRrRay \ | |
4728 | : S_deref_plain_array(aTHX_ aRrRay); \ | |
4729 | }) | |
4730 | #else | |
4731 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4732 | ( \ | |
3b0f6d32 | 4733 | PL_Sv = (SV *)(ary), \ |
d4fc4415 FC |
4734 | SvTYPE(PL_Sv) == SVt_PVAV \ |
4735 | ? (AV *)PL_Sv \ | |
3b0f6d32 | 4736 | : S_deref_plain_array(aTHX_ (AV *)PL_Sv) \ |
d4fc4415 FC |
4737 | ) |
4738 | #endif | |
4739 | ||
a0d0e21e | 4740 | PP(pp_splice) |
79072805 | 4741 | { |
27da23d5 | 4742 | dVAR; dSP; dMARK; dORIGMARK; |
5cd408a2 | 4743 | int num_args = (SP - MARK); |
d4fc4415 | 4744 | register AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
a0d0e21e LW |
4745 | register SV **src; |
4746 | register SV **dst; | |
4747 | register I32 i; | |
4748 | register I32 offset; | |
4749 | register I32 length; | |
4750 | I32 newlen; | |
4751 | I32 after; | |
4752 | I32 diff; | |
ad64d0ec | 4753 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 4754 | |
1b6737cc | 4755 | if (mg) { |
af71faff NC |
4756 | return Perl_tied_method(aTHX_ "SPLICE", mark - 1, MUTABLE_SV(ary), mg, |
4757 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, | |
4758 | sp - mark); | |
93965878 | 4759 | } |
79072805 | 4760 | |
a0d0e21e | 4761 | SP++; |
79072805 | 4762 | |
a0d0e21e | 4763 | if (++MARK < SP) { |
4ea561bc | 4764 | offset = i = SvIV(*MARK); |
a0d0e21e | 4765 | if (offset < 0) |
93965878 | 4766 | offset += AvFILLp(ary) + 1; |
84902520 | 4767 | if (offset < 0) |
cea2e8a9 | 4768 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
4769 | if (++MARK < SP) { |
4770 | length = SvIVx(*MARK++); | |
48cdf507 GA |
4771 | if (length < 0) { |
4772 | length += AvFILLp(ary) - offset + 1; | |
4773 | if (length < 0) | |
4774 | length = 0; | |
4775 | } | |
79072805 LW |
4776 | } |
4777 | else | |
a0d0e21e | 4778 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 4779 | } |
a0d0e21e LW |
4780 | else { |
4781 | offset = 0; | |
4782 | length = AvMAX(ary) + 1; | |
4783 | } | |
8cbc2e3b | 4784 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
4785 | if (num_args > 2) |
4786 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 4787 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 4788 | } |
93965878 | 4789 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
4790 | if (after < 0) { /* not that much array */ |
4791 | length += after; /* offset+length now in array */ | |
4792 | after = 0; | |
4793 | if (!AvALLOC(ary)) | |
4794 | av_extend(ary, 0); | |
4795 | } | |
4796 | ||
4797 | /* At this point, MARK .. SP-1 is our new LIST */ | |
4798 | ||
4799 | newlen = SP - MARK; | |
4800 | diff = newlen - length; | |
13d7cbc1 GS |
4801 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
4802 | av_reify(ary); | |
a0d0e21e | 4803 | |
50528de0 WL |
4804 | /* make new elements SVs now: avoid problems if they're from the array */ |
4805 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 4806 | SV * const h = *dst; |
f2b990bf | 4807 | *dst++ = newSVsv(h); |
50528de0 WL |
4808 | } |
4809 | ||
a0d0e21e | 4810 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 4811 | SV **tmparyval = NULL; |
a0d0e21e | 4812 | if (newlen) { |
a02a5408 | 4813 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 4814 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 4815 | } |
a0d0e21e LW |
4816 | |
4817 | MARK = ORIGMARK + 1; | |
4818 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
4819 | MEXTEND(MARK, length); | |
4820 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
4821 | if (AvREAL(ary)) { | |
bbce6d69 | 4822 | EXTEND_MORTAL(length); |
36477c24 | 4823 | for (i = length, dst = MARK; i; i--) { |
486ec47a | 4824 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 4825 | dst++; |
4826 | } | |
a0d0e21e LW |
4827 | } |
4828 | MARK += length - 1; | |
79072805 | 4829 | } |
a0d0e21e LW |
4830 | else { |
4831 | *MARK = AvARRAY(ary)[offset+length-1]; | |
4832 | if (AvREAL(ary)) { | |
d689ffdd | 4833 | sv_2mortal(*MARK); |
a0d0e21e LW |
4834 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
4835 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 4836 | } |
a0d0e21e | 4837 | } |
93965878 | 4838 | AvFILLp(ary) += diff; |
a0d0e21e LW |
4839 | |
4840 | /* pull up or down? */ | |
4841 | ||
4842 | if (offset < after) { /* easier to pull up */ | |
4843 | if (offset) { /* esp. if nothing to pull */ | |
4844 | src = &AvARRAY(ary)[offset-1]; | |
4845 | dst = src - diff; /* diff is negative */ | |
4846 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
4847 | *dst-- = *src--; | |
79072805 | 4848 | } |
a0d0e21e | 4849 | dst = AvARRAY(ary); |
9c6bc640 | 4850 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
4851 | AvMAX(ary) += diff; |
4852 | } | |
4853 | else { | |
4854 | if (after) { /* anything to pull down? */ | |
4855 | src = AvARRAY(ary) + offset + length; | |
4856 | dst = src + diff; /* diff is negative */ | |
4857 | Move(src, dst, after, SV*); | |
79072805 | 4858 | } |
93965878 | 4859 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
4860 | /* avoid later double free */ |
4861 | } | |
4862 | i = -diff; | |
4863 | while (i) | |
3280af22 | 4864 | dst[--i] = &PL_sv_undef; |
a0d0e21e LW |
4865 | |
4866 | if (newlen) { | |
50528de0 | 4867 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
4868 | Safefree(tmparyval); |
4869 | } | |
4870 | } | |
4871 | else { /* no, expanding (or same) */ | |
d3961450 | 4872 | SV** tmparyval = NULL; |
a0d0e21e | 4873 | if (length) { |
a02a5408 | 4874 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
4875 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
4876 | } | |
4877 | ||
4878 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 4879 | /* push up or down? */ |
a0d0e21e LW |
4880 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
4881 | if (offset) { | |
4882 | src = AvARRAY(ary); | |
4883 | dst = src - diff; | |
4884 | Move(src, dst, offset, SV*); | |
79072805 | 4885 | } |
9c6bc640 | 4886 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 4887 | AvMAX(ary) += diff; |
93965878 | 4888 | AvFILLp(ary) += diff; |
79072805 LW |
4889 | } |
4890 | else { | |
93965878 NIS |
4891 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
4892 | av_extend(ary, AvFILLp(ary) + diff); | |
4893 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
4894 | |
4895 | if (after) { | |
93965878 | 4896 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
4897 | src = dst - diff; |
4898 | for (i = after; i; i--) { | |
4899 | *dst-- = *src--; | |
4900 | } | |
79072805 LW |
4901 | } |
4902 | } | |
a0d0e21e LW |
4903 | } |
4904 | ||
50528de0 WL |
4905 | if (newlen) { |
4906 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 4907 | } |
50528de0 | 4908 | |
a0d0e21e LW |
4909 | MARK = ORIGMARK + 1; |
4910 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
4911 | if (length) { | |
4912 | Copy(tmparyval, MARK, length, SV*); | |
4913 | if (AvREAL(ary)) { | |
bbce6d69 | 4914 | EXTEND_MORTAL(length); |
36477c24 | 4915 | for (i = length, dst = MARK; i; i--) { |
486ec47a | 4916 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 4917 | dst++; |
4918 | } | |
79072805 LW |
4919 | } |
4920 | } | |
a0d0e21e LW |
4921 | MARK += length - 1; |
4922 | } | |
4923 | else if (length--) { | |
4924 | *MARK = tmparyval[length]; | |
4925 | if (AvREAL(ary)) { | |
d689ffdd | 4926 | sv_2mortal(*MARK); |
a0d0e21e LW |
4927 | while (length-- > 0) |
4928 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 4929 | } |
79072805 | 4930 | } |
a0d0e21e | 4931 | else |
3280af22 | 4932 | *MARK = &PL_sv_undef; |
d3961450 | 4933 | Safefree(tmparyval); |
79072805 | 4934 | } |
474af990 FR |
4935 | |
4936 | if (SvMAGICAL(ary)) | |
4937 | mg_set(MUTABLE_SV(ary)); | |
4938 | ||
a0d0e21e | 4939 | SP = MARK; |
79072805 LW |
4940 | RETURN; |
4941 | } | |
4942 | ||
a0d0e21e | 4943 | PP(pp_push) |
79072805 | 4944 | { |
27da23d5 | 4945 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
d4fc4415 | 4946 | register AV * const ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 4947 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 4948 | |
1b6737cc | 4949 | if (mg) { |
ad64d0ec | 4950 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
4951 | PUSHMARK(MARK); |
4952 | PUTBACK; | |
d343c3ef | 4953 | ENTER_with_name("call_PUSH"); |
864dbfa3 | 4954 | call_method("PUSH",G_SCALAR|G_DISCARD); |
d343c3ef | 4955 | LEAVE_with_name("call_PUSH"); |
93965878 | 4956 | SPAGAIN; |
93965878 | 4957 | } |
a60c0954 | 4958 | else { |
89c14e2e | 4959 | PL_delaymagic = DM_DELAY; |
a60c0954 | 4960 | for (++MARK; MARK <= SP; MARK++) { |
561b68a9 | 4961 | SV * const sv = newSV(0); |
a60c0954 NIS |
4962 | if (*MARK) |
4963 | sv_setsv(sv, *MARK); | |
0a75904b | 4964 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 4965 | } |
354b0578 | 4966 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 4967 | mg_set(MUTABLE_SV(ary)); |
89c14e2e BB |
4968 | |
4969 | PL_delaymagic = 0; | |
6eeabd23 VP |
4970 | } |
4971 | SP = ORIGMARK; | |
4972 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
4973 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 4974 | } |
79072805 LW |
4975 | RETURN; |
4976 | } | |
4977 | ||
a0d0e21e | 4978 | PP(pp_shift) |
79072805 | 4979 | { |
97aff369 | 4980 | dVAR; |
39644a26 | 4981 | dSP; |
538f5756 | 4982 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
d4fc4415 | 4983 | ? MUTABLE_AV(GvAV(PL_defgv)) : DEREF_PLAIN_ARRAY(MUTABLE_AV(POPs)); |
789b4bc9 | 4984 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 4985 | EXTEND(SP, 1); |
c2b4a044 | 4986 | assert (sv); |
d689ffdd | 4987 | if (AvREAL(av)) |
a0d0e21e LW |
4988 | (void)sv_2mortal(sv); |
4989 | PUSHs(sv); | |
79072805 | 4990 | RETURN; |
79072805 LW |
4991 | } |
4992 | ||
a0d0e21e | 4993 | PP(pp_unshift) |
79072805 | 4994 | { |
27da23d5 | 4995 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
d4fc4415 | 4996 | register AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 4997 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 4998 | |
1b6737cc | 4999 | if (mg) { |
ad64d0ec | 5000 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5001 | PUSHMARK(MARK); |
93965878 | 5002 | PUTBACK; |
d343c3ef | 5003 | ENTER_with_name("call_UNSHIFT"); |
864dbfa3 | 5004 | call_method("UNSHIFT",G_SCALAR|G_DISCARD); |
d343c3ef | 5005 | LEAVE_with_name("call_UNSHIFT"); |
93965878 | 5006 | SPAGAIN; |
93965878 | 5007 | } |
a60c0954 | 5008 | else { |
1b6737cc | 5009 | register I32 i = 0; |
a60c0954 NIS |
5010 | av_unshift(ary, SP - MARK); |
5011 | while (MARK < SP) { | |
1b6737cc | 5012 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5013 | (void)av_store(ary, i++, sv); |
5014 | } | |
79072805 | 5015 | } |
a0d0e21e | 5016 | SP = ORIGMARK; |
6eeabd23 | 5017 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5018 | PUSHi( AvFILL(ary) + 1 ); |
5019 | } | |
79072805 | 5020 | RETURN; |
79072805 LW |
5021 | } |
5022 | ||
a0d0e21e | 5023 | PP(pp_reverse) |
79072805 | 5024 | { |
97aff369 | 5025 | dVAR; dSP; dMARK; |
79072805 | 5026 | |
a0d0e21e | 5027 | if (GIMME == G_ARRAY) { |
484c818f VP |
5028 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5029 | AV *av; | |
5030 | ||
5031 | /* See pp_sort() */ | |
5032 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5033 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5034 | av = MUTABLE_AV((*SP)); | |
5035 | /* In-place reversing only happens in void context for the array | |
5036 | * assignment. We don't need to push anything on the stack. */ | |
5037 | SP = MARK; | |
5038 | ||
5039 | if (SvMAGICAL(av)) { | |
5040 | I32 i, j; | |
5041 | register SV *tmp = sv_newmortal(); | |
5042 | /* For SvCANEXISTDELETE */ | |
5043 | HV *stash; | |
5044 | const MAGIC *mg; | |
5045 | bool can_preserve = SvCANEXISTDELETE(av); | |
5046 | ||
5047 | for (i = 0, j = av_len(av); i < j; ++i, --j) { | |
5048 | register SV *begin, *end; | |
5049 | ||
5050 | if (can_preserve) { | |
5051 | if (!av_exists(av, i)) { | |
5052 | if (av_exists(av, j)) { | |
5053 | register SV *sv = av_delete(av, j, 0); | |
5054 | begin = *av_fetch(av, i, TRUE); | |
5055 | sv_setsv_mg(begin, sv); | |
5056 | } | |
5057 | continue; | |
5058 | } | |
5059 | else if (!av_exists(av, j)) { | |
5060 | register SV *sv = av_delete(av, i, 0); | |
5061 | end = *av_fetch(av, j, TRUE); | |
5062 | sv_setsv_mg(end, sv); | |
5063 | continue; | |
5064 | } | |
5065 | } | |
5066 | ||
5067 | begin = *av_fetch(av, i, TRUE); | |
5068 | end = *av_fetch(av, j, TRUE); | |
5069 | sv_setsv(tmp, begin); | |
5070 | sv_setsv_mg(begin, end); | |
5071 | sv_setsv_mg(end, tmp); | |
5072 | } | |
5073 | } | |
5074 | else { | |
5075 | SV **begin = AvARRAY(av); | |
484c818f | 5076 | |
95a26d8e VP |
5077 | if (begin) { |
5078 | SV **end = begin + AvFILLp(av); | |
5079 | ||
5080 | while (begin < end) { | |
5081 | register SV * const tmp = *begin; | |
5082 | *begin++ = *end; | |
5083 | *end-- = tmp; | |
5084 | } | |
484c818f VP |
5085 | } |
5086 | } | |
5087 | } | |
5088 | else { | |
5089 | SV **oldsp = SP; | |
5090 | MARK++; | |
5091 | while (MARK < SP) { | |
5092 | register SV * const tmp = *MARK; | |
5093 | *MARK++ = *SP; | |
5094 | *SP-- = tmp; | |
5095 | } | |
5096 | /* safe as long as stack cannot get extended in the above */ | |
5097 | SP = oldsp; | |
a0d0e21e | 5098 | } |
79072805 LW |
5099 | } |
5100 | else { | |
a0d0e21e LW |
5101 | register char *up; |
5102 | register char *down; | |
5103 | register I32 tmp; | |
5104 | dTARGET; | |
5105 | STRLEN len; | |
79072805 | 5106 | |
7e2040f0 | 5107 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 5108 | if (SP - MARK > 1) |
3280af22 | 5109 | do_join(TARG, &PL_sv_no, MARK, SP); |
1e21d011 | 5110 | else { |
789bd863 | 5111 | sv_setsv(TARG, SP > MARK ? *SP : find_rundefsv()); |
1e21d011 B |
5112 | if (! SvOK(TARG) && ckWARN(WARN_UNINITIALIZED)) |
5113 | report_uninit(TARG); | |
5114 | } | |
5115 | ||
a0d0e21e LW |
5116 | up = SvPV_force(TARG, len); |
5117 | if (len > 1) { | |
7e2040f0 | 5118 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5119 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5120 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5121 | while (s < send) { |
d742c382 | 5122 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5123 | s++; |
5124 | continue; | |
5125 | } | |
5126 | else { | |
9041c2e3 | 5127 | if (!utf8_to_uvchr(s, 0)) |
a0dbb045 | 5128 | break; |
dfe13c55 | 5129 | up = (char*)s; |
a0ed51b3 | 5130 | s += UTF8SKIP(s); |
dfe13c55 | 5131 | down = (char*)(s - 1); |
a0dbb045 | 5132 | /* reverse this character */ |
a0ed51b3 LW |
5133 | while (down > up) { |
5134 | tmp = *up; | |
5135 | *up++ = *down; | |
eb160463 | 5136 | *down-- = (char)tmp; |
a0ed51b3 LW |
5137 | } |
5138 | } | |
5139 | } | |
5140 | up = SvPVX(TARG); | |
5141 | } | |
a0d0e21e LW |
5142 | down = SvPVX(TARG) + len - 1; |
5143 | while (down > up) { | |
5144 | tmp = *up; | |
5145 | *up++ = *down; | |
eb160463 | 5146 | *down-- = (char)tmp; |
a0d0e21e | 5147 | } |
3aa33fe5 | 5148 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5149 | } |
a0d0e21e LW |
5150 | SP = MARK + 1; |
5151 | SETTARG; | |
79072805 | 5152 | } |
a0d0e21e | 5153 | RETURN; |
79072805 LW |
5154 | } |
5155 | ||
a0d0e21e | 5156 | PP(pp_split) |
79072805 | 5157 | { |
27da23d5 | 5158 | dVAR; dSP; dTARG; |
a0d0e21e | 5159 | AV *ary; |
467f0320 | 5160 | register IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5161 | SV * const sv = POPs; |
a0d0e21e | 5162 | STRLEN len; |
727b7506 | 5163 | register const char *s = SvPV_const(sv, len); |
1b6737cc | 5164 | const bool do_utf8 = DO_UTF8(sv); |
727b7506 | 5165 | const char *strend = s + len; |
44a8e56a | 5166 | register PMOP *pm; |
d9f97599 | 5167 | register REGEXP *rx; |
a0d0e21e | 5168 | register SV *dstr; |
727b7506 | 5169 | register const char *m; |
a0d0e21e | 5170 | I32 iters = 0; |
bb7a0f54 | 5171 | const STRLEN slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : (STRLEN)(strend - s); |
792b2c16 | 5172 | I32 maxiters = slen + 10; |
c1a7495a | 5173 | I32 trailing_empty = 0; |
727b7506 | 5174 | const char *orig; |
1b6737cc | 5175 | const I32 origlimit = limit; |
a0d0e21e LW |
5176 | I32 realarray = 0; |
5177 | I32 base; | |
f54cb97a | 5178 | const I32 gimme = GIMME_V; |
941446f6 | 5179 | bool gimme_scalar; |
f54cb97a | 5180 | const I32 oldsave = PL_savestack_ix; |
437d3b4e | 5181 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5182 | bool multiline = 0; |
b37c2d43 | 5183 | MAGIC *mg = NULL; |
79072805 | 5184 | |
44a8e56a | 5185 | #ifdef DEBUGGING |
5186 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
5187 | #else | |
5188 | pm = (PMOP*)POPs; | |
5189 | #endif | |
a0d0e21e | 5190 | if (!pm || !s) |
2269b42e | 5191 | DIE(aTHX_ "panic: pp_split"); |
aaa362c4 | 5192 | rx = PM_GETRE(pm); |
bbce6d69 | 5193 | |
a62b1201 | 5194 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
07bc277f | 5195 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5196 | |
a30b2f1f | 5197 | RX_MATCH_UTF8_set(rx, do_utf8); |
d9f424b2 | 5198 | |
971a9dd3 | 5199 | #ifdef USE_ITHREADS |
20e98b0f | 5200 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
159b6efe | 5201 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
20e98b0f | 5202 | } |
971a9dd3 | 5203 | #else |
20e98b0f NC |
5204 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
5205 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
971a9dd3 | 5206 | } |
20e98b0f | 5207 | #endif |
79072805 | 5208 | else |
7d49f689 | 5209 | ary = NULL; |
a0d0e21e LW |
5210 | if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) { |
5211 | realarray = 1; | |
8ec5e241 | 5212 | PUTBACK; |
a0d0e21e LW |
5213 | av_extend(ary,0); |
5214 | av_clear(ary); | |
8ec5e241 | 5215 | SPAGAIN; |
ad64d0ec | 5216 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5217 | PUSHMARK(SP); |
ad64d0ec | 5218 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5219 | } |
5220 | else { | |
1c0b011c | 5221 | if (!AvREAL(ary)) { |
1b6737cc | 5222 | I32 i; |
1c0b011c | 5223 | AvREAL_on(ary); |
abff13bb | 5224 | AvREIFY_off(ary); |
1c0b011c | 5225 | for (i = AvFILLp(ary); i >= 0; i--) |
3280af22 | 5226 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5227 | } |
5228 | /* temporarily switch stacks */ | |
8b7059b1 | 5229 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5230 | make_mortal = 0; |
1c0b011c | 5231 | } |
79072805 | 5232 | } |
3280af22 | 5233 | base = SP - PL_stack_base; |
a0d0e21e | 5234 | orig = s; |
07bc277f | 5235 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e TS |
5236 | if (do_utf8) { |
5237 | while (*s == ' ' || is_utf8_space((U8*)s)) | |
5238 | s += UTF8SKIP(s); | |
5239 | } | |
a62b1201 | 5240 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
bbce6d69 | 5241 | while (isSPACE_LC(*s)) |
5242 | s++; | |
5243 | } | |
5244 | else { | |
5245 | while (isSPACE(*s)) | |
5246 | s++; | |
5247 | } | |
a0d0e21e | 5248 | } |
73134a2e | 5249 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5250 | multiline = 1; |
c07a80fd | 5251 | } |
5252 | ||
941446f6 FC |
5253 | gimme_scalar = gimme == G_SCALAR && !ary; |
5254 | ||
a0d0e21e LW |
5255 | if (!limit) |
5256 | limit = maxiters + 2; | |
07bc277f | 5257 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5258 | while (--limit) { |
bbce6d69 | 5259 | m = s; |
8727f688 YO |
5260 | /* this one uses 'm' and is a negative test */ |
5261 | if (do_utf8) { | |
613f191e TS |
5262 | while (m < strend && !( *m == ' ' || is_utf8_space((U8*)m) )) { |
5263 | const int t = UTF8SKIP(m); | |
5264 | /* is_utf8_space returns FALSE for malform utf8 */ | |
5265 | if (strend - m < t) | |
5266 | m = strend; | |
5267 | else | |
5268 | m += t; | |
5269 | } | |
a62b1201 KW |
5270 | } |
5271 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { | |
8727f688 YO |
5272 | while (m < strend && !isSPACE_LC(*m)) |
5273 | ++m; | |
5274 | } else { | |
5275 | while (m < strend && !isSPACE(*m)) | |
5276 | ++m; | |
5277 | } | |
a0d0e21e LW |
5278 | if (m >= strend) |
5279 | break; | |
bbce6d69 | 5280 | |
c1a7495a BB |
5281 | if (gimme_scalar) { |
5282 | iters++; | |
5283 | if (m-s == 0) | |
5284 | trailing_empty++; | |
5285 | else | |
5286 | trailing_empty = 0; | |
5287 | } else { | |
5288 | dstr = newSVpvn_flags(s, m-s, | |
5289 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5290 | XPUSHs(dstr); | |
5291 | } | |
bbce6d69 | 5292 | |
613f191e TS |
5293 | /* skip the whitespace found last */ |
5294 | if (do_utf8) | |
5295 | s = m + UTF8SKIP(m); | |
5296 | else | |
5297 | s = m + 1; | |
5298 | ||
8727f688 YO |
5299 | /* this one uses 's' and is a positive test */ |
5300 | if (do_utf8) { | |
613f191e | 5301 | while (s < strend && ( *s == ' ' || is_utf8_space((U8*)s) )) |
8727f688 | 5302 | s += UTF8SKIP(s); |
a62b1201 KW |
5303 | } |
5304 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { | |
8727f688 YO |
5305 | while (s < strend && isSPACE_LC(*s)) |
5306 | ++s; | |
5307 | } else { | |
5308 | while (s < strend && isSPACE(*s)) | |
5309 | ++s; | |
5310 | } | |
79072805 LW |
5311 | } |
5312 | } | |
07bc277f | 5313 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5314 | while (--limit) { |
a6e20a40 AL |
5315 | for (m = s; m < strend && *m != '\n'; m++) |
5316 | ; | |
a0d0e21e LW |
5317 | m++; |
5318 | if (m >= strend) | |
5319 | break; | |
c1a7495a BB |
5320 | |
5321 | if (gimme_scalar) { | |
5322 | iters++; | |
5323 | if (m-s == 0) | |
5324 | trailing_empty++; | |
5325 | else | |
5326 | trailing_empty = 0; | |
5327 | } else { | |
5328 | dstr = newSVpvn_flags(s, m-s, | |
5329 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5330 | XPUSHs(dstr); | |
5331 | } | |
a0d0e21e LW |
5332 | s = m; |
5333 | } | |
5334 | } | |
07bc277f | 5335 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5336 | /* |
5337 | Pre-extend the stack, either the number of bytes or | |
5338 | characters in the string or a limited amount, triggered by: | |
5339 | ||
5340 | my ($x, $y) = split //, $str; | |
5341 | or | |
5342 | split //, $str, $i; | |
5343 | */ | |
c1a7495a BB |
5344 | if (!gimme_scalar) { |
5345 | const U32 items = limit - 1; | |
5346 | if (items < slen) | |
5347 | EXTEND(SP, items); | |
5348 | else | |
5349 | EXTEND(SP, slen); | |
5350 | } | |
640f820d | 5351 | |
e9515b0f AB |
5352 | if (do_utf8) { |
5353 | while (--limit) { | |
5354 | /* keep track of how many bytes we skip over */ | |
5355 | m = s; | |
640f820d | 5356 | s += UTF8SKIP(s); |
c1a7495a BB |
5357 | if (gimme_scalar) { |
5358 | iters++; | |
5359 | if (s-m == 0) | |
5360 | trailing_empty++; | |
5361 | else | |
5362 | trailing_empty = 0; | |
5363 | } else { | |
5364 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5365 | |
c1a7495a BB |
5366 | PUSHs(dstr); |
5367 | } | |
640f820d | 5368 | |
e9515b0f AB |
5369 | if (s >= strend) |
5370 | break; | |
5371 | } | |
5372 | } else { | |
5373 | while (--limit) { | |
c1a7495a BB |
5374 | if (gimme_scalar) { |
5375 | iters++; | |
5376 | } else { | |
5377 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5378 | |
e9515b0f | 5379 | |
c1a7495a BB |
5380 | if (make_mortal) |
5381 | sv_2mortal(dstr); | |
640f820d | 5382 | |
c1a7495a BB |
5383 | PUSHs(dstr); |
5384 | } | |
5385 | ||
5386 | s++; | |
e9515b0f AB |
5387 | |
5388 | if (s >= strend) | |
5389 | break; | |
5390 | } | |
640f820d AB |
5391 | } |
5392 | } | |
3c8556c3 | 5393 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5394 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5395 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
5396 | && !(RX_EXTFLAGS(rx) & RXf_ANCH)) { | |
5397 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); | |
f9f4320a | 5398 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5399 | |
07bc277f | 5400 | len = RX_MINLENRET(rx); |
3c8556c3 | 5401 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5402 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5403 | while (--limit) { |
a6e20a40 AL |
5404 | for (m = s; m < strend && *m != c; m++) |
5405 | ; | |
a0d0e21e LW |
5406 | if (m >= strend) |
5407 | break; | |
c1a7495a BB |
5408 | if (gimme_scalar) { |
5409 | iters++; | |
5410 | if (m-s == 0) | |
5411 | trailing_empty++; | |
5412 | else | |
5413 | trailing_empty = 0; | |
5414 | } else { | |
5415 | dstr = newSVpvn_flags(s, m-s, | |
5416 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5417 | XPUSHs(dstr); | |
5418 | } | |
93f04dac JH |
5419 | /* The rx->minlen is in characters but we want to step |
5420 | * s ahead by bytes. */ | |
1aa99e6b IH |
5421 | if (do_utf8) |
5422 | s = (char*)utf8_hop((U8*)m, len); | |
5423 | else | |
5424 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5425 | } |
5426 | } | |
5427 | else { | |
a0d0e21e | 5428 | while (s < strend && --limit && |
f722798b | 5429 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5430 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5431 | { |
c1a7495a BB |
5432 | if (gimme_scalar) { |
5433 | iters++; | |
5434 | if (m-s == 0) | |
5435 | trailing_empty++; | |
5436 | else | |
5437 | trailing_empty = 0; | |
5438 | } else { | |
5439 | dstr = newSVpvn_flags(s, m-s, | |
5440 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5441 | XPUSHs(dstr); | |
5442 | } | |
93f04dac JH |
5443 | /* The rx->minlen is in characters but we want to step |
5444 | * s ahead by bytes. */ | |
1aa99e6b IH |
5445 | if (do_utf8) |
5446 | s = (char*)utf8_hop((U8*)m, len); | |
5447 | else | |
5448 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 5449 | } |
463ee0b2 | 5450 | } |
463ee0b2 | 5451 | } |
a0d0e21e | 5452 | else { |
07bc277f | 5453 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 5454 | while (s < strend && --limit) |
bbce6d69 | 5455 | { |
1b6737cc | 5456 | I32 rex_return; |
080c2dec | 5457 | PUTBACK; |
f9f4320a | 5458 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1 , |
bfafcb9a | 5459 | sv, NULL, SvSCREAM(sv) ? REXEC_SCREAM : 0); |
080c2dec | 5460 | SPAGAIN; |
1b6737cc | 5461 | if (rex_return == 0) |
080c2dec | 5462 | break; |
d9f97599 | 5463 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
07bc277f | 5464 | if (RX_MATCH_COPIED(rx) && RX_SUBBEG(rx) != orig) { |
a0d0e21e LW |
5465 | m = s; |
5466 | s = orig; | |
07bc277f | 5467 | orig = RX_SUBBEG(rx); |
a0d0e21e LW |
5468 | s = orig + (m - s); |
5469 | strend = s + (strend - m); | |
5470 | } | |
07bc277f | 5471 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
5472 | |
5473 | if (gimme_scalar) { | |
5474 | iters++; | |
5475 | if (m-s == 0) | |
5476 | trailing_empty++; | |
5477 | else | |
5478 | trailing_empty = 0; | |
5479 | } else { | |
5480 | dstr = newSVpvn_flags(s, m-s, | |
5481 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5482 | XPUSHs(dstr); | |
5483 | } | |
07bc277f | 5484 | if (RX_NPARENS(rx)) { |
1b6737cc | 5485 | I32 i; |
07bc277f NC |
5486 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
5487 | s = RX_OFFS(rx)[i].start + orig; | |
5488 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
5489 | |
5490 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
5491 | parens that didn't match -- they should be set to | |
5492 | undef, not the empty string */ | |
c1a7495a BB |
5493 | if (gimme_scalar) { |
5494 | iters++; | |
5495 | if (m-s == 0) | |
5496 | trailing_empty++; | |
5497 | else | |
5498 | trailing_empty = 0; | |
5499 | } else { | |
5500 | if (m >= orig && s >= orig) { | |
5501 | dstr = newSVpvn_flags(s, m-s, | |
5502 | (do_utf8 ? SVf_UTF8 : 0) | |
5503 | | make_mortal); | |
5504 | } | |
5505 | else | |
5506 | dstr = &PL_sv_undef; /* undef, not "" */ | |
5507 | XPUSHs(dstr); | |
748a9306 | 5508 | } |
c1a7495a | 5509 | |
a0d0e21e LW |
5510 | } |
5511 | } | |
07bc277f | 5512 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 5513 | } |
79072805 | 5514 | } |
8ec5e241 | 5515 | |
c1a7495a BB |
5516 | if (!gimme_scalar) { |
5517 | iters = (SP - PL_stack_base) - base; | |
5518 | } | |
a0d0e21e | 5519 | if (iters > maxiters) |
cea2e8a9 | 5520 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 5521 | |
a0d0e21e LW |
5522 | /* keep field after final delim? */ |
5523 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
5524 | if (!gimme_scalar) { |
5525 | const STRLEN l = strend - s; | |
5526 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5527 | XPUSHs(dstr); | |
5528 | } | |
a0d0e21e | 5529 | iters++; |
79072805 | 5530 | } |
a0d0e21e | 5531 | else if (!origlimit) { |
c1a7495a BB |
5532 | if (gimme_scalar) { |
5533 | iters -= trailing_empty; | |
5534 | } else { | |
5535 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
5536 | if (TOPs && !make_mortal) | |
5537 | sv_2mortal(TOPs); | |
5538 | *SP-- = &PL_sv_undef; | |
5539 | iters--; | |
5540 | } | |
89900bd3 | 5541 | } |
a0d0e21e | 5542 | } |
8ec5e241 | 5543 | |
8b7059b1 DM |
5544 | PUTBACK; |
5545 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
5546 | SPAGAIN; | |
a0d0e21e | 5547 | if (realarray) { |
8ec5e241 | 5548 | if (!mg) { |
1c0b011c NIS |
5549 | if (SvSMAGICAL(ary)) { |
5550 | PUTBACK; | |
ad64d0ec | 5551 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
5552 | SPAGAIN; |
5553 | } | |
5554 | if (gimme == G_ARRAY) { | |
5555 | EXTEND(SP, iters); | |
5556 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
5557 | SP += iters; | |
5558 | RETURN; | |
5559 | } | |
8ec5e241 | 5560 | } |
1c0b011c | 5561 | else { |
fb73857a | 5562 | PUTBACK; |
d343c3ef | 5563 | ENTER_with_name("call_PUSH"); |
864dbfa3 | 5564 | call_method("PUSH",G_SCALAR|G_DISCARD); |
d343c3ef | 5565 | LEAVE_with_name("call_PUSH"); |
fb73857a | 5566 | SPAGAIN; |
8ec5e241 | 5567 | if (gimme == G_ARRAY) { |
1b6737cc | 5568 | I32 i; |
8ec5e241 NIS |
5569 | /* EXTEND should not be needed - we just popped them */ |
5570 | EXTEND(SP, iters); | |
5571 | for (i=0; i < iters; i++) { | |
5572 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 5573 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 5574 | } |
1c0b011c NIS |
5575 | RETURN; |
5576 | } | |
a0d0e21e LW |
5577 | } |
5578 | } | |
5579 | else { | |
5580 | if (gimme == G_ARRAY) | |
5581 | RETURN; | |
5582 | } | |
7f18b612 YST |
5583 | |
5584 | GETTARGET; | |
5585 | PUSHi(iters); | |
5586 | RETURN; | |
79072805 | 5587 | } |
85e6fe83 | 5588 | |
c5917253 NC |
5589 | PP(pp_once) |
5590 | { | |
5591 | dSP; | |
5592 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
5593 | ||
5594 | if (SvPADSTALE(sv)) { | |
5595 | /* First time. */ | |
5596 | SvPADSTALE_off(sv); | |
5597 | RETURNOP(cLOGOP->op_other); | |
5598 | } | |
5599 | RETURNOP(cLOGOP->op_next); | |
5600 | } | |
5601 | ||
c0329465 MB |
5602 | PP(pp_lock) |
5603 | { | |
97aff369 | 5604 | dVAR; |
39644a26 | 5605 | dSP; |
c0329465 | 5606 | dTOPss; |
e55aaa0e | 5607 | SV *retsv = sv; |
68795e93 | 5608 | SvLOCK(sv); |
f79aa60b FC |
5609 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
5610 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
5611 | retsv = refto(retsv); |
5612 | } | |
5613 | SETs(retsv); | |
c0329465 MB |
5614 | RETURN; |
5615 | } | |
a863c7d1 | 5616 | |
65bca31a NC |
5617 | |
5618 | PP(unimplemented_op) | |
5619 | { | |
97aff369 | 5620 | dVAR; |
361ed549 NC |
5621 | const Optype op_type = PL_op->op_type; |
5622 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
5623 | with out of range op numbers - it only "special" cases op_custom. | |
5624 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
5625 | if we get here for a custom op then that means that the custom op didn't | |
5626 | have an implementation. Given that OP_NAME() looks up the custom op | |
5627 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
5628 | registers &PL_unimplemented_op as the address of their custom op. | |
5629 | NULL doesn't generate a useful error message. "custom" does. */ | |
5630 | const char *const name = op_type >= OP_max | |
5631 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
5632 | if(OP_IS_SOCKET(op_type)) |
5633 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 5634 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
5635 | } |
5636 | ||
867fa1e2 YO |
5637 | PP(pp_boolkeys) |
5638 | { | |
5639 | dVAR; | |
5640 | dSP; | |
5641 | HV * const hv = (HV*)POPs; | |
5642 | ||
fd1d9b5c FC |
5643 | if (SvTYPE(hv) != SVt_PVHV) { XPUSHs(&PL_sv_no); RETURN; } |
5644 | ||
867fa1e2 YO |
5645 | if (SvRMAGICAL(hv)) { |
5646 | MAGIC * const mg = mg_find((SV*)hv, PERL_MAGIC_tied); | |
5647 | if (mg) { | |
5648 | XPUSHs(magic_scalarpack(hv, mg)); | |
5649 | RETURN; | |
5650 | } | |
5651 | } | |
5652 | ||
1b95d04f | 5653 | XPUSHs(boolSV(HvUSEDKEYS(hv) != 0)); |
867fa1e2 YO |
5654 | RETURN; |
5655 | } | |
5656 | ||
deb8a388 FC |
5657 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
5658 | PP(pp_coreargs) | |
5659 | { | |
5660 | dSP; | |
7fa5bd9b | 5661 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
19c481f4 | 5662 | int defgv = PL_opargs[opnum] & OA_DEFGV, whicharg = 0; |
7fa5bd9b | 5663 | AV * const at_ = GvAV(PL_defgv); |
46e00a91 | 5664 | SV **svp = AvARRAY(at_); |
19c481f4 | 5665 | I32 minargs = 0, maxargs = 0, numargs = AvFILLp(at_)+1; |
7fa5bd9b | 5666 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 5667 | bool seen_question = 0; |
7fa5bd9b | 5668 | const char *err = NULL; |
3e6568b4 | 5669 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 5670 | |
46e00a91 FC |
5671 | /* Count how many args there are first, to get some idea how far to |
5672 | extend the stack. */ | |
7fa5bd9b | 5673 | while (oa) { |
bf0571fd | 5674 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 5675 | maxargs++; |
46e00a91 FC |
5676 | if (oa & OA_OPTIONAL) seen_question = 1; |
5677 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
5678 | oa >>= 4; |
5679 | } | |
5680 | ||
5681 | if(numargs < minargs) err = "Not enough"; | |
5682 | else if(numargs > maxargs) err = "Too many"; | |
5683 | if (err) | |
5684 | /* diag_listed_as: Too many arguments for %s */ | |
5685 | Perl_croak(aTHX_ | |
5686 | "%s arguments for %s", err, | |
5687 | opnum ? OP_DESC(PL_op->op_next) : SvPV_nolen_const(cSVOP_sv) | |
5688 | ); | |
5689 | ||
5690 | /* Reset the stack pointer. Without this, we end up returning our own | |
5691 | arguments in list context, in addition to the values we are supposed | |
5692 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 5693 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b FC |
5694 | nextstate. */ |
5695 | SP = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; | |
5696 | ||
46e00a91 FC |
5697 | if(!maxargs) RETURN; |
5698 | ||
bf0571fd FC |
5699 | /* We do this here, rather than with a separate pushmark op, as it has |
5700 | to come in between two things this function does (stack reset and | |
5701 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 5702 | if (pushmark) { |
bf0571fd FC |
5703 | PUTBACK; |
5704 | (void)Perl_pp_pushmark(aTHX); | |
5705 | } | |
5706 | ||
5707 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 5708 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
5709 | |
5710 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 5711 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 5712 | whicharg++; |
46e00a91 FC |
5713 | switch (oa & 7) { |
5714 | case OA_SCALAR: | |
d6d78e19 FC |
5715 | if (!numargs && defgv && whicharg == minargs + 1) { |
5716 | PERL_SI * const oldsi = PL_curstackinfo; | |
5717 | I32 const oldcxix = oldsi->si_cxix; | |
5718 | CV *caller; | |
5719 | if (oldcxix) oldsi->si_cxix--; | |
5720 | else PL_curstackinfo = oldsi->si_prev; | |
5721 | caller = find_runcv(NULL); | |
5722 | PL_curstackinfo = oldsi; | |
5723 | oldsi->si_cxix = oldcxix; | |
5724 | PUSHs(find_rundefsv2( | |
5725 | caller,cxstack[cxstack_ix].blk_oldcop->cop_seq | |
5726 | )); | |
5727 | } | |
5728 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 5729 | break; |
bf0571fd FC |
5730 | case OA_LIST: |
5731 | while (numargs--) { | |
5732 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
5733 | svp++; | |
5734 | } | |
5735 | RETURN; | |
19c481f4 FC |
5736 | case OA_HVREF: |
5737 | if (!svp || !*svp || !SvROK(*svp) | |
5738 | || SvTYPE(SvRV(*svp)) != SVt_PVHV) | |
5739 | DIE(aTHX_ | |
5740 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
5741 | "Type of arg %d to &CORE::%s must be hash reference", | |
5742 | whicharg, OP_DESC(PL_op->op_next) | |
5743 | ); | |
5744 | PUSHs(SvRV(*svp)); | |
5745 | break; | |
c931b036 | 5746 | case OA_FILEREF: |
30901a8a FC |
5747 | if (!numargs) PUSHs(NULL); |
5748 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
5749 | /* no magic here, as the prototype will have added an extra |
5750 | refgen and we just want what was there before that */ | |
5751 | PUSHs(SvRV(*svp)); | |
5752 | else { | |
5753 | const bool constr = PL_op->op_private & whicharg; | |
5754 | PUSHs(S_rv2gv(aTHX_ | |
5755 | svp && *svp ? *svp : &PL_sv_undef, | |
5756 | constr, CopHINTS_get(PL_curcop) & HINT_STRICT_REFS, | |
5757 | !constr | |
5758 | )); | |
5759 | } | |
5760 | break; | |
c72a5629 | 5761 | case OA_SCALARREF: |
17008668 FC |
5762 | { |
5763 | const bool wantscalar = | |
5764 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 5765 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
5766 | /* We have to permit globrefs even for the \$ proto, as |
5767 | *foo is indistinguishable from ${\*foo}, and the proto- | |
5768 | type permits the latter. */ | |
5769 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae FC |
5770 | wantscalar ? SVt_PVLV |
5771 | : opnum == OP_LOCK ? SVt_PVCV | |
5772 | : SVt_PVHV | |
17008668 | 5773 | ) |
c72a5629 FC |
5774 | ) |
5775 | DIE(aTHX_ | |
5776 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
17008668 FC |
5777 | "Type of arg %d to &CORE::%s must be %s", |
5778 | whicharg, OP_DESC(PL_op->op_next), | |
5779 | wantscalar | |
5780 | ? "scalar reference" | |
efe889ae FC |
5781 | : opnum == OP_LOCK |
5782 | ? "reference to one of [$@%&*]" | |
5783 | : "reference to one of [$@%*]" | |
c72a5629 FC |
5784 | ); |
5785 | PUSHs(SvRV(*svp)); | |
5786 | break; | |
17008668 | 5787 | } |
46e00a91 | 5788 | default: |
46e00a91 FC |
5789 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
5790 | } | |
5791 | oa = oa >> 4; | |
5792 | } | |
5793 | ||
deb8a388 FC |
5794 | RETURN; |
5795 | } | |
5796 | ||
e609e586 NC |
5797 | /* |
5798 | * Local variables: | |
5799 | * c-indentation-style: bsd | |
5800 | * c-basic-offset: 4 | |
5801 | * indent-tabs-mode: t | |
5802 | * End: | |
5803 | * | |
37442d52 RGS |
5804 | * ex: set ts=8 sts=4 sw=4 noet: |
5805 | */ |