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 | 31 | #include "reentr.h" |
685289b5 | 32 | #include "regcharclass.h" |
a4af207c | 33 | |
dfe9444c AD |
34 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
35 | it, since pid_t is an integral type. | |
36 | --AD 2/20/1998 | |
37 | */ | |
38 | #ifdef NEED_GETPID_PROTO | |
39 | extern Pid_t getpid (void); | |
8ac85365 NIS |
40 | #endif |
41 | ||
a78bc3c6 KW |
42 | static const STRLEN small_mu_len = sizeof(GREEK_SMALL_LETTER_MU_UTF8) - 1; |
43 | static const STRLEN capital_iota_len = sizeof(GREEK_CAPITAL_LETTER_IOTA_UTF8) - 1; | |
44 | ||
13017935 SM |
45 | /* variations on pp_null */ |
46 | ||
93a17b20 LW |
47 | PP(pp_stub) |
48 | { | |
39644a26 | 49 | dSP; |
54310121 | 50 | if (GIMME_V == G_SCALAR) |
3280af22 | 51 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
52 | RETURN; |
53 | } | |
54 | ||
79072805 LW |
55 | /* Pushy stuff. */ |
56 | ||
a46a7b6e | 57 | |
93a17b20 | 58 | |
ac217057 FC |
59 | PP(pp_padcv) |
60 | { | |
20b7effb | 61 | dSP; dTARGET; |
97b03d64 FC |
62 | assert(SvTYPE(TARG) == SVt_PVCV); |
63 | XPUSHs(TARG); | |
64 | RETURN; | |
ac217057 FC |
65 | } |
66 | ||
ecf9c8b7 FC |
67 | PP(pp_introcv) |
68 | { | |
20b7effb | 69 | dTARGET; |
6d5c2147 FC |
70 | SvPADSTALE_off(TARG); |
71 | return NORMAL; | |
ecf9c8b7 FC |
72 | } |
73 | ||
13f89586 FC |
74 | PP(pp_clonecv) |
75 | { | |
20b7effb | 76 | dTARGET; |
0f94cb1f FC |
77 | CV * const protocv = PadnamePROTOCV( |
78 | PadlistNAMESARRAY(CvPADLIST(find_runcv(NULL)))[ARGTARG] | |
79 | ); | |
6d5c2147 | 80 | assert(SvTYPE(TARG) == SVt_PVCV); |
0f94cb1f FC |
81 | assert(protocv); |
82 | if (CvISXSUB(protocv)) { /* constant */ | |
6d5c2147 | 83 | /* XXX Should we clone it here? */ |
6d5c2147 FC |
84 | /* If this changes to use SAVECLEARSV, we can move the SAVECLEARSV |
85 | to introcv and remove the SvPADSTALE_off. */ | |
86 | SAVEPADSVANDMORTALIZE(ARGTARG); | |
0f94cb1f | 87 | PAD_SVl(ARGTARG) = SvREFCNT_inc_simple_NN(protocv); |
6d5c2147 FC |
88 | } |
89 | else { | |
0f94cb1f FC |
90 | if (CvROOT(protocv)) { |
91 | assert(CvCLONE(protocv)); | |
92 | assert(!CvCLONED(protocv)); | |
6d5c2147 | 93 | } |
0f94cb1f | 94 | cv_clone_into(protocv,(CV *)TARG); |
6d5c2147 FC |
95 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
96 | } | |
97 | return NORMAL; | |
13f89586 FC |
98 | } |
99 | ||
79072805 LW |
100 | /* Translations. */ |
101 | ||
6f7909da FC |
102 | /* In some cases this function inspects PL_op. If this function is called |
103 | for new op types, more bool parameters may need to be added in place of | |
104 | the checks. | |
105 | ||
106 | When noinit is true, the absence of a gv will cause a retval of undef. | |
107 | This is unrelated to the cv-to-gv assignment case. | |
6f7909da FC |
108 | */ |
109 | ||
110 | static SV * | |
111 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
112 | const bool noinit) | |
113 | { | |
f64c9ac5 | 114 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 115 | if (SvROK(sv)) { |
93d7320b DM |
116 | if (SvAMAGIC(sv)) { |
117 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 118 | } |
e4a1664f | 119 | wasref: |
ed6116ce | 120 | sv = SvRV(sv); |
b1dadf13 | 121 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 122 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
885f468a | 123 | gv_init(gv, 0, "__ANONIO__", 10, 0); |
a45c7426 | 124 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 125 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 126 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 127 | } |
81d52ecd JH |
128 | else if (!isGV_with_GP(sv)) { |
129 | Perl_die(aTHX_ "Not a GLOB reference"); | |
130 | } | |
79072805 LW |
131 | } |
132 | else { | |
6e592b3a | 133 | if (!isGV_with_GP(sv)) { |
f132ae69 | 134 | if (!SvOK(sv)) { |
b13b2135 | 135 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 136 | * NI-S 1999/05/07 |
b13b2135 | 137 | */ |
f132ae69 | 138 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 139 | GV *gv; |
ce74145d | 140 | if (SvREADONLY(sv)) |
cb077ed2 | 141 | Perl_croak_no_modify(); |
2c8ac474 | 142 | if (cUNOP->op_targ) { |
0bd48802 | 143 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
94e7eb6f FC |
144 | HV *stash = CopSTASH(PL_curcop); |
145 | if (SvTYPE(stash) != SVt_PVHV) stash = NULL; | |
159b6efe | 146 | gv = MUTABLE_GV(newSV(0)); |
94e7eb6f | 147 | gv_init_sv(gv, stash, namesv, 0); |
2c8ac474 GS |
148 | } |
149 | else { | |
0bd48802 | 150 | const char * const name = CopSTASHPV(PL_curcop); |
6b10071b | 151 | gv = newGVgen_flags(name, |
d14578b8 | 152 | HvNAMEUTF8(CopSTASH(PL_curcop)) ? SVf_UTF8 : 0 ); |
7bdb4ff0 | 153 | SvREFCNT_inc_simple_void_NN(gv); |
1d8d4d2a | 154 | } |
43230e26 | 155 | prepare_SV_for_RV(sv); |
ad64d0ec | 156 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 157 | SvROK_on(sv); |
1d8d4d2a | 158 | SvSETMAGIC(sv); |
853846ea | 159 | goto wasref; |
2c8ac474 | 160 | } |
81d52ecd JH |
161 | if (PL_op->op_flags & OPf_REF || strict) { |
162 | Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
163 | } | |
599cee73 | 164 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 165 | report_uninit(sv); |
6f7909da | 166 | return &PL_sv_undef; |
a0d0e21e | 167 | } |
6f7909da | 168 | if (noinit) |
35cd451c | 169 | { |
77cb3b01 FC |
170 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
171 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 172 | )))) |
6f7909da | 173 | return &PL_sv_undef; |
35cd451c GS |
174 | } |
175 | else { | |
81d52ecd JH |
176 | if (strict) { |
177 | Perl_die(aTHX_ | |
fedf30e1 | 178 | PL_no_symref_sv, |
81d52ecd JH |
179 | sv, |
180 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), | |
181 | "a symbol" | |
182 | ); | |
183 | } | |
e26df76a NC |
184 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
185 | == OPpDONT_INIT_GV) { | |
186 | /* We are the target of a coderef assignment. Return | |
187 | the scalar unchanged, and let pp_sasssign deal with | |
188 | things. */ | |
6f7909da | 189 | return sv; |
e26df76a | 190 | } |
77cb3b01 | 191 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 192 | } |
2acc3314 | 193 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 194 | SvFAKE_off(sv); |
93a17b20 | 195 | } |
79072805 | 196 | } |
8dc99089 | 197 | if (SvFAKE(sv) && !(PL_op->op_private & OPpALLOW_FAKE)) { |
2acc3314 | 198 | SV *newsv = sv_newmortal(); |
5cf4b255 | 199 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 200 | SvFAKE_off(newsv); |
d8906c05 | 201 | sv = newsv; |
2acc3314 | 202 | } |
6f7909da FC |
203 | return sv; |
204 | } | |
205 | ||
206 | PP(pp_rv2gv) | |
207 | { | |
20b7effb | 208 | dSP; dTOPss; |
6f7909da FC |
209 | |
210 | sv = S_rv2gv(aTHX_ | |
211 | sv, PL_op->op_private & OPpDEREF, | |
212 | PL_op->op_private & HINT_STRICT_REFS, | |
213 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
214 | || PL_op->op_type == OP_READLINE | |
215 | ); | |
d8906c05 FC |
216 | if (PL_op->op_private & OPpLVAL_INTRO) |
217 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
218 | SETs(sv); | |
79072805 LW |
219 | RETURN; |
220 | } | |
221 | ||
dc3c76f8 NC |
222 | /* Helper function for pp_rv2sv and pp_rv2av */ |
223 | GV * | |
fe9845cc RB |
224 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
225 | const svtype type, SV ***spp) | |
dc3c76f8 | 226 | { |
dc3c76f8 NC |
227 | GV *gv; |
228 | ||
7918f24d NC |
229 | PERL_ARGS_ASSERT_SOFTREF2XV; |
230 | ||
dc3c76f8 NC |
231 | if (PL_op->op_private & HINT_STRICT_REFS) { |
232 | if (SvOK(sv)) | |
fedf30e1 | 233 | Perl_die(aTHX_ PL_no_symref_sv, sv, |
bf3d870f | 234 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
dc3c76f8 NC |
235 | else |
236 | Perl_die(aTHX_ PL_no_usym, what); | |
237 | } | |
238 | if (!SvOK(sv)) { | |
fd1d9b5c | 239 | if ( |
c8fe3bdf | 240 | PL_op->op_flags & OPf_REF |
fd1d9b5c | 241 | ) |
dc3c76f8 NC |
242 | Perl_die(aTHX_ PL_no_usym, what); |
243 | if (ckWARN(WARN_UNINITIALIZED)) | |
244 | report_uninit(sv); | |
245 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
246 | (*spp)--; | |
247 | return NULL; | |
248 | } | |
249 | **spp = &PL_sv_undef; | |
250 | return NULL; | |
251 | } | |
252 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
253 | !(PL_op->op_flags & OPf_MOD)) | |
254 | { | |
77cb3b01 | 255 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
256 | { |
257 | **spp = &PL_sv_undef; | |
258 | return NULL; | |
259 | } | |
260 | } | |
261 | else { | |
77cb3b01 | 262 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
263 | } |
264 | return gv; | |
265 | } | |
266 | ||
79072805 LW |
267 | PP(pp_rv2sv) |
268 | { | |
20b7effb | 269 | dSP; dTOPss; |
c445ea15 | 270 | GV *gv = NULL; |
79072805 | 271 | |
9026059d | 272 | SvGETMAGIC(sv); |
ed6116ce | 273 | if (SvROK(sv)) { |
93d7320b DM |
274 | if (SvAMAGIC(sv)) { |
275 | sv = amagic_deref_call(sv, to_sv_amg); | |
93d7320b | 276 | } |
f5284f61 | 277 | |
ed6116ce | 278 | sv = SvRV(sv); |
69f00f67 | 279 | if (SvTYPE(sv) >= SVt_PVAV) |
cea2e8a9 | 280 | DIE(aTHX_ "Not a SCALAR reference"); |
79072805 LW |
281 | } |
282 | else { | |
159b6efe | 283 | gv = MUTABLE_GV(sv); |
748a9306 | 284 | |
6e592b3a | 285 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
286 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
287 | if (!gv) | |
288 | RETURN; | |
463ee0b2 | 289 | } |
29c711a3 | 290 | sv = GvSVn(gv); |
a0d0e21e | 291 | } |
533c011a | 292 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
293 | if (PL_op->op_private & OPpLVAL_INTRO) { |
294 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 295 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
296 | else if (gv) |
297 | sv = save_scalar(gv); | |
298 | else | |
f1f66076 | 299 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 300 | } |
533c011a | 301 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 302 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 303 | } |
655f5b26 | 304 | SPAGAIN; /* in case chasing soft refs reallocated the stack */ |
a0d0e21e | 305 | SETs(sv); |
79072805 LW |
306 | RETURN; |
307 | } | |
308 | ||
309 | PP(pp_av2arylen) | |
310 | { | |
20b7effb | 311 | dSP; |
502c6561 | 312 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
313 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
314 | if (lvalue) { | |
8160c8f5 DM |
315 | SV ** const svp = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); |
316 | if (!*svp) { | |
317 | *svp = newSV_type(SVt_PVMG); | |
318 | sv_magic(*svp, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
02d85cc3 | 319 | } |
8160c8f5 | 320 | SETs(*svp); |
02d85cc3 | 321 | } else { |
e1dccc0d | 322 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 323 | } |
79072805 LW |
324 | RETURN; |
325 | } | |
326 | ||
a0d0e21e LW |
327 | PP(pp_pos) |
328 | { | |
27a8dde8 | 329 | dSP; dTOPss; |
8ec5e241 | 330 | |
78f9721b | 331 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
d14578b8 | 332 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV));/* Not TARG RT#67838 */ |
16eb5365 FC |
333 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); |
334 | LvTYPE(ret) = '.'; | |
335 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
27a8dde8 | 336 | SETs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
337 | } |
338 | else { | |
96c2a8ff | 339 | const MAGIC * const mg = mg_find_mglob(sv); |
6174b39a | 340 | if (mg && mg->mg_len != -1) { |
6174b39a | 341 | STRLEN i = mg->mg_len; |
7b394f12 DM |
342 | if (PL_op->op_private & OPpTRUEBOOL) |
343 | SETs(i ? &PL_sv_yes : &PL_sv_zero); | |
344 | else { | |
345 | dTARGET; | |
346 | if (mg->mg_flags & MGf_BYTES && DO_UTF8(sv)) | |
347 | i = sv_pos_b2u_flags(sv, i, SV_GMAGIC|SV_CONST_RETURN); | |
348 | SETu(i); | |
349 | } | |
27a8dde8 | 350 | return NORMAL; |
a0d0e21e | 351 | } |
27a8dde8 | 352 | SETs(&PL_sv_undef); |
a0d0e21e | 353 | } |
27a8dde8 | 354 | return NORMAL; |
a0d0e21e LW |
355 | } |
356 | ||
79072805 LW |
357 | PP(pp_rv2cv) |
358 | { | |
20b7effb | 359 | dSP; |
79072805 | 360 | GV *gv; |
1eced8f8 | 361 | HV *stash_unused; |
c445ea15 | 362 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 363 | ? GV_ADDMG |
d14578b8 KW |
364 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) |
365 | == OPpMAY_RETURN_CONSTANT) | |
c445ea15 AL |
366 | ? GV_ADD|GV_NOEXPAND |
367 | : GV_ADD; | |
4633a7c4 LW |
368 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
369 | /* (But not in defined().) */ | |
e26df76a | 370 | |
1eced8f8 | 371 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
5a20ba3d | 372 | if (cv) NOOP; |
e26df76a | 373 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
2eaf799e FC |
374 | cv = SvTYPE(SvRV(gv)) == SVt_PVCV |
375 | ? MUTABLE_CV(SvRV(gv)) | |
376 | : MUTABLE_CV(gv); | |
e26df76a | 377 | } |
07055b4c | 378 | else |
ea726b52 | 379 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 380 | SETs(MUTABLE_SV(cv)); |
3d79e3ee | 381 | return NORMAL; |
79072805 LW |
382 | } |
383 | ||
c07a80fd | 384 | PP(pp_prototype) |
385 | { | |
20b7effb | 386 | dSP; |
c07a80fd | 387 | CV *cv; |
388 | HV *stash; | |
389 | GV *gv; | |
fabdb6c0 | 390 | SV *ret = &PL_sv_undef; |
c07a80fd | 391 | |
6954f42f | 392 | if (SvGMAGICAL(TOPs)) SETs(sv_mortalcopy(TOPs)); |
b6c543e3 | 393 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 394 | const char * s = SvPVX_const(TOPs); |
b6c543e3 | 395 | if (strnEQ(s, "CORE::", 6)) { |
be1b855b | 396 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
a96df643 | 397 | if (!code) |
147e3846 | 398 | DIE(aTHX_ "Can't find an opnumber for \"%" UTF8f "\"", |
b17a0679 | 399 | UTF8fARG(SvFLAGS(TOPs) & SVf_UTF8, SvCUR(TOPs)-6, s+6)); |
4e338c21 | 400 | { |
b66130dd FC |
401 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); |
402 | if (sv) ret = sv; | |
403 | } | |
b8c38f0a | 404 | goto set; |
b6c543e3 IZ |
405 | } |
406 | } | |
f2c0649b | 407 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 408 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
409 | ret = newSVpvn_flags( |
410 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
411 | ); | |
b6c543e3 | 412 | set: |
c07a80fd | 413 | SETs(ret); |
414 | RETURN; | |
415 | } | |
416 | ||
a0d0e21e LW |
417 | PP(pp_anoncode) |
418 | { | |
20b7effb | 419 | dSP; |
ea726b52 | 420 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 421 | if (CvCLONE(cv)) |
ad64d0ec | 422 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 423 | EXTEND(SP,1); |
ad64d0ec | 424 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
425 | RETURN; |
426 | } | |
427 | ||
428 | PP(pp_srefgen) | |
79072805 | 429 | { |
20b7effb | 430 | dSP; |
71be2cbc | 431 | *SP = refto(*SP); |
3ed34c76 | 432 | return NORMAL; |
8ec5e241 | 433 | } |
a0d0e21e LW |
434 | |
435 | PP(pp_refgen) | |
436 | { | |
20b7effb | 437 | dSP; dMARK; |
82334630 | 438 | if (GIMME_V != G_ARRAY) { |
5f0b1d4e GS |
439 | if (++MARK <= SP) |
440 | *MARK = *SP; | |
441 | else | |
1d51ab6c FC |
442 | { |
443 | MEXTEND(SP, 1); | |
3280af22 | 444 | *MARK = &PL_sv_undef; |
1d51ab6c | 445 | } |
5f0b1d4e GS |
446 | *MARK = refto(*MARK); |
447 | SP = MARK; | |
448 | RETURN; | |
a0d0e21e | 449 | } |
bbce6d69 | 450 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 451 | while (++MARK <= SP) |
452 | *MARK = refto(*MARK); | |
a0d0e21e | 453 | RETURN; |
79072805 LW |
454 | } |
455 | ||
76e3520e | 456 | STATIC SV* |
cea2e8a9 | 457 | S_refto(pTHX_ SV *sv) |
71be2cbc | 458 | { |
459 | SV* rv; | |
460 | ||
7918f24d NC |
461 | PERL_ARGS_ASSERT_REFTO; |
462 | ||
71be2cbc | 463 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
464 | if (LvTARGLEN(sv)) | |
68dc0745 | 465 | vivify_defelem(sv); |
466 | if (!(sv = LvTARG(sv))) | |
3280af22 | 467 | sv = &PL_sv_undef; |
0dd88869 | 468 | else |
b37c2d43 | 469 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 470 | } |
d8b46c1b | 471 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
472 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
473 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 474 | SvTEMP_off(sv); |
b37c2d43 | 475 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 476 | } |
60779a30 | 477 | else if (SvPADTMP(sv)) { |
f2933f5f | 478 | sv = newSVsv(sv); |
60779a30 | 479 | } |
71be2cbc | 480 | else { |
481 | SvTEMP_off(sv); | |
b37c2d43 | 482 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 483 | } |
484 | rv = sv_newmortal(); | |
4df7f6af | 485 | sv_upgrade(rv, SVt_IV); |
b162af07 | 486 | SvRV_set(rv, sv); |
71be2cbc | 487 | SvROK_on(rv); |
488 | return rv; | |
489 | } | |
490 | ||
79072805 LW |
491 | PP(pp_ref) |
492 | { | |
3c1e67ac DD |
493 | dSP; |
494 | SV * const sv = TOPs; | |
f12c7020 | 495 | |
511ddbdf | 496 | SvGETMAGIC(sv); |
ba75e9a4 | 497 | if (!SvROK(sv)) { |
3c1e67ac | 498 | SETs(&PL_sv_no); |
ba75e9a4 DM |
499 | return NORMAL; |
500 | } | |
501 | ||
502 | /* op is in boolean context? */ | |
503 | if ( (PL_op->op_private & OPpTRUEBOOL) | |
504 | || ( (PL_op->op_private & OPpMAYBE_TRUEBOOL) | |
505 | && block_gimme() == G_VOID)) | |
506 | { | |
507 | /* refs are always true - unless it's to an object blessed into a | |
508 | * class with a false name, i.e. "0". So we have to check for | |
509 | * that remote possibility. The following is is basically an | |
510 | * unrolled SvTRUE(sv_reftype(rv)) */ | |
511 | SV * const rv = SvRV(sv); | |
512 | if (SvOBJECT(rv)) { | |
513 | HV *stash = SvSTASH(rv); | |
514 | HEK *hek = HvNAME_HEK(stash); | |
515 | if (hek) { | |
516 | I32 len = HEK_LEN(hek); | |
517 | /* bail out and do it the hard way? */ | |
518 | if (UNLIKELY( | |
519 | len == HEf_SVKEY | |
520 | || (len == 1 && HEK_KEY(hek)[0] == '0') | |
521 | )) | |
522 | goto do_sv_ref; | |
523 | } | |
524 | } | |
525 | SETs(&PL_sv_yes); | |
526 | return NORMAL; | |
527 | } | |
528 | ||
529 | do_sv_ref: | |
530 | { | |
3c1e67ac DD |
531 | dTARGET; |
532 | SETs(TARG); | |
ba75e9a4 | 533 | sv_ref(TARG, SvRV(sv), TRUE); |
a10e04b5 | 534 | SvSETMAGIC(TARG); |
ba75e9a4 | 535 | return NORMAL; |
3c1e67ac | 536 | } |
79072805 | 537 | |
79072805 LW |
538 | } |
539 | ||
ba75e9a4 | 540 | |
79072805 LW |
541 | PP(pp_bless) |
542 | { | |
20b7effb | 543 | dSP; |
463ee0b2 | 544 | HV *stash; |
79072805 | 545 | |
463ee0b2 | 546 | if (MAXARG == 1) |
dcdfe746 | 547 | { |
c2f922f1 | 548 | curstash: |
11faa288 | 549 | stash = CopSTASH(PL_curcop); |
dcdfe746 FC |
550 | if (SvTYPE(stash) != SVt_PVHV) |
551 | Perl_croak(aTHX_ "Attempt to bless into a freed package"); | |
552 | } | |
7b8d334a | 553 | else { |
1b6737cc | 554 | SV * const ssv = POPs; |
7b8d334a | 555 | STRLEN len; |
e1ec3a88 | 556 | const char *ptr; |
81689caa | 557 | |
c2f922f1 | 558 | if (!ssv) goto curstash; |
8d9dd4b9 | 559 | SvGETMAGIC(ssv); |
c7ea825d FC |
560 | if (SvROK(ssv)) { |
561 | if (!SvAMAGIC(ssv)) { | |
562 | frog: | |
81689caa | 563 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
c7ea825d FC |
564 | } |
565 | /* SvAMAGIC is on here, but it only means potentially overloaded, | |
566 | so after stringification: */ | |
567 | ptr = SvPV_nomg_const(ssv,len); | |
568 | /* We need to check the flag again: */ | |
569 | if (!SvAMAGIC(ssv)) goto frog; | |
570 | } | |
571 | else ptr = SvPV_nomg_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 | { | |
20b7effb | 584 | dSP; |
b13b2135 | 585 | |
1b6737cc | 586 | SV *sv = POPs; |
a180b31a BF |
587 | STRLEN len; |
588 | const char * const elem = SvPV_const(sv, len); | |
5695161e | 589 | GV * const gv = MUTABLE_GV(TOPs); |
c445ea15 | 590 | SV * tmpRef = NULL; |
1b6737cc | 591 | |
c445ea15 | 592 | sv = NULL; |
c4ba80c3 NC |
593 | if (elem) { |
594 | /* elem will always be NUL terminated. */ | |
c4ba80c3 NC |
595 | switch (*elem) { |
596 | case 'A': | |
500f3e18 | 597 | if (memEQs(elem, len, "ARRAY")) |
e14698d8 | 598 | { |
ad64d0ec | 599 | tmpRef = MUTABLE_SV(GvAV(gv)); |
e14698d8 FC |
600 | if (tmpRef && !AvREAL((const AV *)tmpRef) |
601 | && AvREIFY((const AV *)tmpRef)) | |
602 | av_reify(MUTABLE_AV(tmpRef)); | |
603 | } | |
c4ba80c3 NC |
604 | break; |
605 | case 'C': | |
500f3e18 | 606 | if (memEQs(elem, len, "CODE")) |
ad64d0ec | 607 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
608 | break; |
609 | case 'F': | |
500f3e18 | 610 | if (memEQs(elem, len, "FILEHANDLE")) { |
ad64d0ec | 611 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
612 | } |
613 | else | |
500f3e18 | 614 | if (memEQs(elem, len, "FORMAT")) |
ad64d0ec | 615 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
616 | break; |
617 | case 'G': | |
500f3e18 | 618 | if (memEQs(elem, len, "GLOB")) |
ad64d0ec | 619 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
620 | break; |
621 | case 'H': | |
500f3e18 | 622 | if (memEQs(elem, len, "HASH")) |
ad64d0ec | 623 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
624 | break; |
625 | case 'I': | |
500f3e18 | 626 | if (memEQs(elem, len, "IO")) |
ad64d0ec | 627 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
628 | break; |
629 | case 'N': | |
500f3e18 | 630 | if (memEQs(elem, len, "NAME")) |
a663657d | 631 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
632 | break; |
633 | case 'P': | |
500f3e18 | 634 | if (memEQs(elem, len, "PACKAGE")) { |
7fa3a4ab NC |
635 | const HV * const stash = GvSTASH(gv); |
636 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 637 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
638 | } |
639 | break; | |
640 | case 'S': | |
500f3e18 | 641 | if (memEQs(elem, len, "SCALAR")) |
f9d52e31 | 642 | tmpRef = GvSVn(gv); |
c4ba80c3 | 643 | break; |
39b99f21 | 644 | } |
fb73857a | 645 | } |
76e3520e GS |
646 | if (tmpRef) |
647 | sv = newRV(tmpRef); | |
fb73857a | 648 | if (sv) |
649 | sv_2mortal(sv); | |
650 | else | |
3280af22 | 651 | sv = &PL_sv_undef; |
5695161e | 652 | SETs(sv); |
fb73857a | 653 | RETURN; |
654 | } | |
655 | ||
a0d0e21e | 656 | /* Pattern matching */ |
79072805 | 657 | |
a0d0e21e | 658 | PP(pp_study) |
79072805 | 659 | { |
add3e777 | 660 | dSP; dTOPss; |
a0d0e21e LW |
661 | STRLEN len; |
662 | ||
1fa930f2 | 663 | (void)SvPV(sv, len); |
bc9a5256 | 664 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
32f0ea87 | 665 | /* Historically, study was skipped in these cases. */ |
add3e777 FC |
666 | SETs(&PL_sv_no); |
667 | return NORMAL; | |
a4f4e906 NC |
668 | } |
669 | ||
a58a85fa | 670 | /* Make study a no-op. It's no longer useful and its existence |
32f0ea87 | 671 | complicates matters elsewhere. */ |
add3e777 FC |
672 | SETs(&PL_sv_yes); |
673 | return NORMAL; | |
79072805 LW |
674 | } |
675 | ||
b1c05ba5 DM |
676 | |
677 | /* also used for: pp_transr() */ | |
678 | ||
a0d0e21e | 679 | PP(pp_trans) |
79072805 | 680 | { |
6442877a | 681 | dSP; |
a0d0e21e LW |
682 | SV *sv; |
683 | ||
533c011a | 684 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 685 | sv = POPs; |
79072805 | 686 | else { |
a0d0e21e | 687 | EXTEND(SP,1); |
f605e527 | 688 | if (ARGTARG) |
6442877a | 689 | sv = PAD_SV(ARGTARG); |
f605e527 FC |
690 | else { |
691 | sv = DEFSV; | |
692 | } | |
79072805 | 693 | } |
bb16bae8 | 694 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
695 | STRLEN len; |
696 | const char * const pv = SvPV(sv,len); | |
697 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 698 | do_trans(newsv); |
290797f7 | 699 | PUSHs(newsv); |
bb16bae8 | 700 | } |
5bbe7184 | 701 | else { |
bcb10b84 VP |
702 | I32 i = do_trans(sv); |
703 | mPUSHi(i); | |
5bbe7184 | 704 | } |
a0d0e21e | 705 | RETURN; |
79072805 LW |
706 | } |
707 | ||
a0d0e21e | 708 | /* Lvalue operators. */ |
79072805 | 709 | |
f595e19f | 710 | static size_t |
81745e4e NC |
711 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) |
712 | { | |
81745e4e NC |
713 | STRLEN len; |
714 | char *s; | |
f595e19f | 715 | size_t count = 0; |
81745e4e NC |
716 | |
717 | PERL_ARGS_ASSERT_DO_CHOMP; | |
718 | ||
719 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
f595e19f | 720 | return 0; |
81745e4e NC |
721 | if (SvTYPE(sv) == SVt_PVAV) { |
722 | I32 i; | |
723 | AV *const av = MUTABLE_AV(sv); | |
724 | const I32 max = AvFILL(av); | |
725 | ||
726 | for (i = 0; i <= max; i++) { | |
727 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
728 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
f595e19f | 729 | count += do_chomp(retval, sv, chomping); |
81745e4e | 730 | } |
f595e19f | 731 | return count; |
81745e4e NC |
732 | } |
733 | else if (SvTYPE(sv) == SVt_PVHV) { | |
734 | HV* const hv = MUTABLE_HV(sv); | |
735 | HE* entry; | |
736 | (void)hv_iterinit(hv); | |
737 | while ((entry = hv_iternext(hv))) | |
f595e19f FC |
738 | count += do_chomp(retval, hv_iterval(hv,entry), chomping); |
739 | return count; | |
81745e4e NC |
740 | } |
741 | else if (SvREADONLY(sv)) { | |
cb077ed2 | 742 | Perl_croak_no_modify(); |
81745e4e NC |
743 | } |
744 | ||
81745e4e NC |
745 | s = SvPV(sv, len); |
746 | if (chomping) { | |
81745e4e | 747 | if (s && len) { |
997c424a DD |
748 | char *temp_buffer = NULL; |
749 | SV *svrecode = NULL; | |
81745e4e NC |
750 | s += --len; |
751 | if (RsPARA(PL_rs)) { | |
752 | if (*s != '\n') | |
997c424a | 753 | goto nope_free_nothing; |
f595e19f | 754 | ++count; |
81745e4e NC |
755 | while (len && s[-1] == '\n') { |
756 | --len; | |
757 | --s; | |
f595e19f | 758 | ++count; |
81745e4e NC |
759 | } |
760 | } | |
761 | else { | |
762 | STRLEN rslen, rs_charlen; | |
763 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
764 | ||
765 | rs_charlen = SvUTF8(PL_rs) | |
766 | ? sv_len_utf8(PL_rs) | |
767 | : rslen; | |
768 | ||
769 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
770 | /* Assumption is that rs is shorter than the scalar. */ | |
771 | if (SvUTF8(PL_rs)) { | |
772 | /* RS is utf8, scalar is 8 bit. */ | |
773 | bool is_utf8 = TRUE; | |
774 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
775 | &rslen, &is_utf8); | |
776 | if (is_utf8) { | |
997c424a DD |
777 | /* Cannot downgrade, therefore cannot possibly match. |
778 | At this point, temp_buffer is not alloced, and | |
779 | is the buffer inside PL_rs, so dont free it. | |
81745e4e NC |
780 | */ |
781 | assert (temp_buffer == rsptr); | |
997c424a | 782 | goto nope_free_sv; |
81745e4e NC |
783 | } |
784 | rsptr = temp_buffer; | |
785 | } | |
81745e4e NC |
786 | else { |
787 | /* RS is 8 bit, scalar is utf8. */ | |
788 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
789 | rsptr = temp_buffer; | |
790 | } | |
791 | } | |
792 | if (rslen == 1) { | |
793 | if (*s != *rsptr) | |
997c424a | 794 | goto nope_free_all; |
f595e19f | 795 | ++count; |
81745e4e NC |
796 | } |
797 | else { | |
798 | if (len < rslen - 1) | |
997c424a | 799 | goto nope_free_all; |
81745e4e NC |
800 | len -= rslen - 1; |
801 | s -= rslen - 1; | |
802 | if (memNE(s, rsptr, rslen)) | |
997c424a | 803 | goto nope_free_all; |
f595e19f | 804 | count += rs_charlen; |
81745e4e NC |
805 | } |
806 | } | |
3b7ded39 | 807 | SvPV_force_nomg_nolen(sv); |
81745e4e NC |
808 | SvCUR_set(sv, len); |
809 | *SvEND(sv) = '\0'; | |
810 | SvNIOK_off(sv); | |
811 | SvSETMAGIC(sv); | |
81745e4e | 812 | |
997c424a DD |
813 | nope_free_all: |
814 | Safefree(temp_buffer); | |
815 | nope_free_sv: | |
816 | SvREFCNT_dec(svrecode); | |
817 | nope_free_nothing: ; | |
818 | } | |
81745e4e | 819 | } else { |
f8c80a8e | 820 | if (len && (!SvPOK(sv) || SvIsCOW(sv))) |
81745e4e NC |
821 | s = SvPV_force_nomg(sv, len); |
822 | if (DO_UTF8(sv)) { | |
823 | if (s && len) { | |
824 | char * const send = s + len; | |
825 | char * const start = s; | |
826 | s = send - 1; | |
827 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
828 | s--; | |
829 | if (is_utf8_string((U8*)s, send - s)) { | |
830 | sv_setpvn(retval, s, send - s); | |
831 | *s = '\0'; | |
832 | SvCUR_set(sv, s - start); | |
833 | SvNIOK_off(sv); | |
834 | SvUTF8_on(retval); | |
835 | } | |
836 | } | |
837 | else | |
500f3e18 | 838 | SvPVCLEAR(retval); |
81745e4e NC |
839 | } |
840 | else if (s && len) { | |
841 | s += --len; | |
842 | sv_setpvn(retval, s, 1); | |
843 | *s = '\0'; | |
844 | SvCUR_set(sv, len); | |
845 | SvUTF8_off(sv); | |
846 | SvNIOK_off(sv); | |
847 | } | |
848 | else | |
500f3e18 | 849 | SvPVCLEAR(retval); |
81745e4e NC |
850 | SvSETMAGIC(sv); |
851 | } | |
f595e19f | 852 | return count; |
81745e4e NC |
853 | } |
854 | ||
b1c05ba5 DM |
855 | |
856 | /* also used for: pp_schomp() */ | |
857 | ||
a0d0e21e LW |
858 | PP(pp_schop) |
859 | { | |
20b7effb | 860 | dSP; dTARGET; |
fa54efae NC |
861 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
862 | ||
f595e19f | 863 | const size_t count = do_chomp(TARG, TOPs, chomping); |
fa54efae | 864 | if (chomping) |
f595e19f | 865 | sv_setiv(TARG, count); |
a0d0e21e | 866 | SETTARG; |
ee41d8c7 | 867 | return NORMAL; |
79072805 LW |
868 | } |
869 | ||
b1c05ba5 DM |
870 | |
871 | /* also used for: pp_chomp() */ | |
872 | ||
a0d0e21e | 873 | PP(pp_chop) |
79072805 | 874 | { |
20b7effb | 875 | dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 876 | const bool chomping = PL_op->op_type == OP_CHOMP; |
f595e19f | 877 | size_t count = 0; |
8ec5e241 | 878 | |
20cf1f79 | 879 | while (MARK < SP) |
f595e19f FC |
880 | count += do_chomp(TARG, *++MARK, chomping); |
881 | if (chomping) | |
882 | sv_setiv(TARG, count); | |
20cf1f79 NC |
883 | SP = ORIGMARK; |
884 | XPUSHTARG; | |
a0d0e21e | 885 | RETURN; |
79072805 LW |
886 | } |
887 | ||
a0d0e21e LW |
888 | PP(pp_undef) |
889 | { | |
20b7effb | 890 | dSP; |
a0d0e21e LW |
891 | SV *sv; |
892 | ||
533c011a | 893 | if (!PL_op->op_private) { |
774d564b | 894 | EXTEND(SP, 1); |
a0d0e21e | 895 | RETPUSHUNDEF; |
774d564b | 896 | } |
79072805 | 897 | |
821f14b0 | 898 | sv = TOPs; |
a0d0e21e | 899 | if (!sv) |
821f14b0 FC |
900 | { |
901 | SETs(&PL_sv_undef); | |
902 | return NORMAL; | |
903 | } | |
85e6fe83 | 904 | |
4dda930b FC |
905 | if (SvTHINKFIRST(sv)) |
906 | sv_force_normal_flags(sv, SV_COW_DROP_PV|SV_IMMEDIATE_UNREF); | |
85e6fe83 | 907 | |
a0d0e21e LW |
908 | switch (SvTYPE(sv)) { |
909 | case SVt_NULL: | |
910 | break; | |
911 | case SVt_PVAV: | |
60edcf09 | 912 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
913 | break; |
914 | case SVt_PVHV: | |
60edcf09 | 915 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
916 | break; |
917 | case SVt_PVCV: | |
a2a5de95 | 918 | if (cv_const_sv((const CV *)sv)) |
714cd18f | 919 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
147e3846 | 920 | "Constant subroutine %" SVf " undefined", |
714cd18f BF |
921 | SVfARG(CvANON((const CV *)sv) |
922 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
bdbfc51a FC |
923 | : sv_2mortal(newSVhek( |
924 | CvNAMED(sv) | |
925 | ? CvNAME_HEK((CV *)sv) | |
926 | : GvENAME_HEK(CvGV((const CV *)sv)) | |
927 | )) | |
928 | )); | |
5f66b61c | 929 | /* FALLTHROUGH */ |
9607fc9c | 930 | case SVt_PVFM: |
6fc92669 | 931 | /* let user-undef'd sub keep its identity */ |
b7acb0a3 | 932 | cv_undef_flags(MUTABLE_CV(sv), CV_UNDEF_KEEP_NAME); |
a0d0e21e | 933 | break; |
8e07c86e | 934 | case SVt_PVGV: |
bc1df6c2 FC |
935 | assert(isGV_with_GP(sv)); |
936 | assert(!SvFAKE(sv)); | |
937 | { | |
20408e3c | 938 | GP *gp; |
dd69841b BB |
939 | HV *stash; |
940 | ||
dd69841b | 941 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
942 | bool method_changed |
943 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
944 | && HvENAME_get(stash); | |
945 | /* undef *Foo:: */ | |
946 | if((stash = GvHV((const GV *)sv))) { | |
947 | if(HvENAME_get(stash)) | |
948 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
949 | else stash = NULL; | |
950 | } | |
dd69841b | 951 | |
795eb8c8 | 952 | SvREFCNT_inc_simple_void_NN(sv_2mortal(sv)); |
159b6efe | 953 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 954 | Newxz(gp, 1, GP); |
c43ae56f | 955 | GvGP_set(sv, gp_ref(gp)); |
2e3295e3 | 956 | #ifndef PERL_DONT_CREATE_GVSV |
561b68a9 | 957 | GvSV(sv) = newSV(0); |
2e3295e3 | 958 | #endif |
57843af0 | 959 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 960 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 961 | GvMULTI_on(sv); |
e530fb81 FC |
962 | |
963 | if(stash) | |
afdbe55d | 964 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
965 | stash = NULL; |
966 | /* undef *Foo::ISA */ | |
967 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
968 | && (stash = GvSTASH((const GV *)sv)) | |
969 | && (method_changed || HvENAME(stash)) ) | |
970 | mro_isa_changed_in(stash); | |
971 | else if(method_changed) | |
972 | mro_method_changed_in( | |
da9043f5 | 973 | GvSTASH((const GV *)sv) |
e530fb81 FC |
974 | ); |
975 | ||
6e592b3a | 976 | break; |
20408e3c | 977 | } |
a0d0e21e | 978 | default: |
b15aece3 | 979 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 980 | SvPV_free(sv); |
c445ea15 | 981 | SvPV_set(sv, NULL); |
4633a7c4 | 982 | SvLEN_set(sv, 0); |
a0d0e21e | 983 | } |
0c34ef67 | 984 | SvOK_off(sv); |
4633a7c4 | 985 | SvSETMAGIC(sv); |
79072805 | 986 | } |
a0d0e21e | 987 | |
821f14b0 FC |
988 | SETs(&PL_sv_undef); |
989 | return NORMAL; | |
79072805 LW |
990 | } |
991 | ||
b1c05ba5 | 992 | |
20e96431 | 993 | /* common "slow" code for pp_postinc and pp_postdec */ |
b1c05ba5 | 994 | |
20e96431 DM |
995 | static OP * |
996 | S_postincdec_common(pTHX_ SV *sv, SV *targ) | |
a0d0e21e | 997 | { |
20e96431 | 998 | dSP; |
c22c99bc FC |
999 | const bool inc = |
1000 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
20e96431 DM |
1001 | |
1002 | if (SvROK(sv)) | |
7dcb9b98 | 1003 | TARG = sv_newmortal(); |
20e96431 DM |
1004 | sv_setsv(TARG, sv); |
1005 | if (inc) | |
1006 | sv_inc_nomg(sv); | |
1007 | else | |
1008 | sv_dec_nomg(sv); | |
1009 | SvSETMAGIC(sv); | |
1e54a23f | 1010 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1011 | if (inc && !SvOK(TARG)) |
a0d0e21e | 1012 | sv_setiv(TARG, 0); |
e87de4ab | 1013 | SETTARG; |
a0d0e21e LW |
1014 | return NORMAL; |
1015 | } | |
79072805 | 1016 | |
20e96431 DM |
1017 | |
1018 | /* also used for: pp_i_postinc() */ | |
1019 | ||
1020 | PP(pp_postinc) | |
1021 | { | |
1022 | dSP; dTARGET; | |
1023 | SV *sv = TOPs; | |
1024 | ||
1025 | /* special-case sv being a simple integer */ | |
1026 | if (LIKELY(((sv->sv_flags & | |
1027 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1028 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1029 | == SVf_IOK)) | |
1030 | && SvIVX(sv) != IV_MAX) | |
1031 | { | |
1032 | IV iv = SvIVX(sv); | |
1033 | SvIV_set(sv, iv + 1); | |
1034 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1035 | SETs(TARG); | |
1036 | return NORMAL; | |
1037 | } | |
1038 | ||
1039 | return S_postincdec_common(aTHX_ sv, TARG); | |
1040 | } | |
1041 | ||
1042 | ||
1043 | /* also used for: pp_i_postdec() */ | |
1044 | ||
1045 | PP(pp_postdec) | |
1046 | { | |
1047 | dSP; dTARGET; | |
1048 | SV *sv = TOPs; | |
1049 | ||
1050 | /* special-case sv being a simple integer */ | |
1051 | if (LIKELY(((sv->sv_flags & | |
1052 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1053 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1054 | == SVf_IOK)) | |
1055 | && SvIVX(sv) != IV_MIN) | |
1056 | { | |
1057 | IV iv = SvIVX(sv); | |
1058 | SvIV_set(sv, iv - 1); | |
1059 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1060 | SETs(TARG); | |
1061 | return NORMAL; | |
1062 | } | |
1063 | ||
1064 | return S_postincdec_common(aTHX_ sv, TARG); | |
1065 | } | |
1066 | ||
1067 | ||
a0d0e21e LW |
1068 | /* Ordinary operators. */ |
1069 | ||
1070 | PP(pp_pow) | |
1071 | { | |
20b7effb | 1072 | dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1073 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1074 | bool is_int = 0; |
1075 | #endif | |
6f1401dc DM |
1076 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1077 | svr = TOPs; | |
1078 | svl = TOPm1s; | |
52a96ae6 HS |
1079 | #ifdef PERL_PRESERVE_IVUV |
1080 | /* For integer to integer power, we do the calculation by hand wherever | |
1081 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1082 | integer afterwards. */ | |
01f91bf2 | 1083 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
900658e3 PF |
1084 | UV power; |
1085 | bool baseuok; | |
1086 | UV baseuv; | |
1087 | ||
800401ee JH |
1088 | if (SvUOK(svr)) { |
1089 | power = SvUVX(svr); | |
900658e3 | 1090 | } else { |
800401ee | 1091 | const IV iv = SvIVX(svr); |
900658e3 PF |
1092 | if (iv >= 0) { |
1093 | power = iv; | |
1094 | } else { | |
1095 | goto float_it; /* Can't do negative powers this way. */ | |
1096 | } | |
1097 | } | |
1098 | ||
800401ee | 1099 | baseuok = SvUOK(svl); |
900658e3 | 1100 | if (baseuok) { |
800401ee | 1101 | baseuv = SvUVX(svl); |
900658e3 | 1102 | } else { |
800401ee | 1103 | const IV iv = SvIVX(svl); |
900658e3 PF |
1104 | if (iv >= 0) { |
1105 | baseuv = iv; | |
1106 | baseuok = TRUE; /* effectively it's a UV now */ | |
1107 | } else { | |
1108 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1109 | } | |
1110 | } | |
52a96ae6 HS |
1111 | /* now we have integer ** positive integer. */ |
1112 | is_int = 1; | |
1113 | ||
1114 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1115 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1116 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1117 | The logic here will work for any base (even non-integer |
1118 | bases) but it can be less accurate than | |
1119 | pow (base,power) or exp (power * log (base)) when the | |
1120 | intermediate values start to spill out of the mantissa. | |
1121 | With powers of 2 we know this can't happen. | |
1122 | And powers of 2 are the favourite thing for perl | |
1123 | programmers to notice ** not doing what they mean. */ | |
1124 | NV result = 1.0; | |
1125 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1126 | |
1127 | if (power & 1) { | |
1128 | result *= base; | |
1129 | } | |
1130 | while (power >>= 1) { | |
1131 | base *= base; | |
1132 | if (power & 1) { | |
1133 | result *= base; | |
1134 | } | |
1135 | } | |
58d76dfd JH |
1136 | SP--; |
1137 | SETn( result ); | |
6f1401dc | 1138 | SvIV_please_nomg(svr); |
58d76dfd | 1139 | RETURN; |
52a96ae6 | 1140 | } else { |
eb578fdb KW |
1141 | unsigned int highbit = 8 * sizeof(UV); |
1142 | unsigned int diff = 8 * sizeof(UV); | |
900658e3 PF |
1143 | while (diff >>= 1) { |
1144 | highbit -= diff; | |
1145 | if (baseuv >> highbit) { | |
1146 | highbit += diff; | |
1147 | } | |
52a96ae6 HS |
1148 | } |
1149 | /* we now have baseuv < 2 ** highbit */ | |
1150 | if (power * highbit <= 8 * sizeof(UV)) { | |
1151 | /* result will definitely fit in UV, so use UV math | |
1152 | on same algorithm as above */ | |
eb578fdb KW |
1153 | UV result = 1; |
1154 | UV base = baseuv; | |
f2338a2e | 1155 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1156 | if (odd_power) { |
1157 | result *= base; | |
1158 | } | |
1159 | while (power >>= 1) { | |
1160 | base *= base; | |
1161 | if (power & 1) { | |
52a96ae6 | 1162 | result *= base; |
52a96ae6 HS |
1163 | } |
1164 | } | |
1165 | SP--; | |
0615a994 | 1166 | if (baseuok || !odd_power) |
52a96ae6 HS |
1167 | /* answer is positive */ |
1168 | SETu( result ); | |
1169 | else if (result <= (UV)IV_MAX) | |
1170 | /* answer negative, fits in IV */ | |
1171 | SETi( -(IV)result ); | |
1172 | else if (result == (UV)IV_MIN) | |
1173 | /* 2's complement assumption: special case IV_MIN */ | |
1174 | SETi( IV_MIN ); | |
1175 | else | |
1176 | /* answer negative, doesn't fit */ | |
1177 | SETn( -(NV)result ); | |
1178 | RETURN; | |
1179 | } | |
1180 | } | |
58d76dfd | 1181 | } |
52a96ae6 | 1182 | float_it: |
58d76dfd | 1183 | #endif |
a0d0e21e | 1184 | { |
6f1401dc DM |
1185 | NV right = SvNV_nomg(svr); |
1186 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1187 | (void)POPs; |
3aaeb624 JA |
1188 | |
1189 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1190 | /* | |
1191 | We are building perl with long double support and are on an AIX OS | |
1192 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1193 | negative base. This was reported to IBM as PMR #23047-379 on | |
1194 | 03/06/2006. The problem exists in at least the following versions | |
1195 | of AIX and the libm fileset, and no doubt others as well: | |
1196 | ||
1197 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1198 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1199 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1200 | ||
1201 | So, until IBM fixes powl(), we provide the following workaround to | |
1202 | handle the problem ourselves. Our logic is as follows: for | |
1203 | negative bases (left), we use fmod(right, 2) to check if the | |
1204 | exponent is an odd or even integer: | |
1205 | ||
1206 | - if odd, powl(left, right) == -powl(-left, right) | |
1207 | - if even, powl(left, right) == powl(-left, right) | |
1208 | ||
1209 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1210 | we just return that (as NV_NAN). | |
1211 | */ | |
1212 | ||
1213 | if (left < 0.0) { | |
1214 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1215 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1216 | SETn( -Perl_pow( -left, right) ); | |
1217 | } else if (mod2 == 0.0) { /* even integer */ | |
1218 | SETn( Perl_pow( -left, right) ); | |
1219 | } else { /* fractional power */ | |
1220 | SETn( NV_NAN ); | |
1221 | } | |
1222 | } else { | |
1223 | SETn( Perl_pow( left, right) ); | |
1224 | } | |
1225 | #else | |
52a96ae6 | 1226 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1227 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1228 | ||
52a96ae6 HS |
1229 | #ifdef PERL_PRESERVE_IVUV |
1230 | if (is_int) | |
6f1401dc | 1231 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1232 | #endif |
1233 | RETURN; | |
93a17b20 | 1234 | } |
a0d0e21e LW |
1235 | } |
1236 | ||
1237 | PP(pp_multiply) | |
1238 | { | |
20b7effb | 1239 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1240 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1241 | svr = TOPs; | |
1242 | svl = TOPm1s; | |
230ee21f | 1243 | |
28e5dec8 | 1244 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1245 | |
1246 | /* special-case some simple common cases */ | |
1247 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1248 | IV il, ir; | |
1249 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1250 | if (flags & SVf_IOK) { | |
1251 | /* both args are simple IVs */ | |
1252 | UV topl, topr; | |
1253 | il = SvIVX(svl); | |
1254 | ir = SvIVX(svr); | |
1255 | do_iv: | |
1256 | topl = ((UV)il) >> (UVSIZE * 4 - 1); | |
1257 | topr = ((UV)ir) >> (UVSIZE * 4 - 1); | |
1258 | ||
1259 | /* if both are in a range that can't under/overflow, do a | |
1260 | * simple integer multiply: if the top halves(*) of both numbers | |
1261 | * are 00...00 or 11...11, then it's safe. | |
1262 | * (*) for 32-bits, the "top half" is the top 17 bits, | |
1263 | * for 64-bits, its 33 bits */ | |
1264 | if (!( | |
1265 | ((topl+1) | (topr+1)) | |
1266 | & ( (((UV)1) << (UVSIZE * 4 + 1)) - 2) /* 11..110 */ | |
1267 | )) { | |
1268 | SP--; | |
1269 | TARGi(il * ir, 0); /* args not GMG, so can't be tainted */ | |
1270 | SETs(TARG); | |
1271 | RETURN; | |
1272 | } | |
1273 | goto generic; | |
1274 | } | |
1275 | else if (flags & SVf_NOK) { | |
1276 | /* both args are NVs */ | |
1277 | NV nl = SvNVX(svl); | |
1278 | NV nr = SvNVX(svr); | |
1279 | NV result; | |
1280 | ||
3336af0b DD |
1281 | if ( |
1282 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
1283 | !Perl_isnan(nl) && nl == (NV)(il = (IV)nl) | |
1284 | && !Perl_isnan(nr) && nr == (NV)(ir = (IV)nr) | |
1285 | #else | |
1286 | nl == (NV)(il = (IV)nl) && nr == (NV)(ir = (IV)nr) | |
1287 | #endif | |
1288 | ) | |
230ee21f DM |
1289 | /* nothing was lost by converting to IVs */ |
1290 | goto do_iv; | |
1291 | SP--; | |
1292 | result = nl * nr; | |
1f02ab1d | 1293 | # if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1294 | if (Perl_isinf(result)) { |
1295 | Zero((U8*)&result + 8, 8, U8); | |
1296 | } | |
1297 | # endif | |
1298 | TARGn(result, 0); /* args not GMG, so can't be tainted */ | |
1299 | SETs(TARG); | |
1300 | RETURN; | |
1301 | } | |
1302 | } | |
1303 | ||
1304 | generic: | |
1305 | ||
01f91bf2 | 1306 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1307 | /* Unless the left argument is integer in range we are going to have to |
1308 | use NV maths. Hence only attempt to coerce the right argument if | |
1309 | we know the left is integer. */ | |
1310 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1311 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1312 | bool auvok = SvUOK(svl); |
1313 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1314 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1315 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1316 | UV alow; | |
1317 | UV ahigh; | |
1318 | UV blow; | |
1319 | UV bhigh; | |
1320 | ||
1321 | if (auvok) { | |
800401ee | 1322 | alow = SvUVX(svl); |
28e5dec8 | 1323 | } else { |
800401ee | 1324 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1325 | if (aiv >= 0) { |
1326 | alow = aiv; | |
1327 | auvok = TRUE; /* effectively it's a UV now */ | |
1328 | } else { | |
53e2bfb7 DM |
1329 | /* abs, auvok == false records sign */ |
1330 | alow = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); | |
28e5dec8 JH |
1331 | } |
1332 | } | |
1333 | if (buvok) { | |
800401ee | 1334 | blow = SvUVX(svr); |
28e5dec8 | 1335 | } else { |
800401ee | 1336 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1337 | if (biv >= 0) { |
1338 | blow = biv; | |
1339 | buvok = TRUE; /* effectively it's a UV now */ | |
1340 | } else { | |
53e2bfb7 DM |
1341 | /* abs, buvok == false records sign */ |
1342 | blow = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); | |
28e5dec8 JH |
1343 | } |
1344 | } | |
1345 | ||
1346 | /* If this does sign extension on unsigned it's time for plan B */ | |
1347 | ahigh = alow >> (4 * sizeof (UV)); | |
1348 | alow &= botmask; | |
1349 | bhigh = blow >> (4 * sizeof (UV)); | |
1350 | blow &= botmask; | |
1351 | if (ahigh && bhigh) { | |
6f207bd3 | 1352 | NOOP; |
28e5dec8 JH |
1353 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1354 | which is overflow. Drop to NVs below. */ | |
1355 | } else if (!ahigh && !bhigh) { | |
1356 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1357 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1358 | const UV product = alow * blow; |
28e5dec8 JH |
1359 | if (auvok == buvok) { |
1360 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1361 | SP--; | |
1362 | SETu( product ); | |
1363 | RETURN; | |
1364 | } else if (product <= (UV)IV_MIN) { | |
1365 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1366 | /* -ve result, which could overflow an IV */ | |
1367 | SP--; | |
02b08bbc DM |
1368 | /* can't negate IV_MIN, but there are aren't two |
1369 | * integers such that !ahigh && !bhigh, where the | |
1370 | * product equals 0x800....000 */ | |
1371 | assert(product != (UV)IV_MIN); | |
25716404 | 1372 | SETi( -(IV)product ); |
28e5dec8 JH |
1373 | RETURN; |
1374 | } /* else drop to NVs below. */ | |
1375 | } else { | |
1376 | /* One operand is large, 1 small */ | |
1377 | UV product_middle; | |
1378 | if (bhigh) { | |
1379 | /* swap the operands */ | |
1380 | ahigh = bhigh; | |
1381 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1382 | blow = alow; | |
1383 | alow = bhigh; | |
1384 | } | |
1385 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1386 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1387 | product_middle = ahigh * blow; | |
1388 | if (!(product_middle & topmask)) { | |
1389 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1390 | UV product_low; | |
1391 | product_middle <<= (4 * sizeof (UV)); | |
1392 | product_low = alow * blow; | |
1393 | ||
1394 | /* as for pp_add, UV + something mustn't get smaller. | |
1395 | IIRC ANSI mandates this wrapping *behaviour* for | |
1396 | unsigned whatever the actual representation*/ | |
1397 | product_low += product_middle; | |
1398 | if (product_low >= product_middle) { | |
1399 | /* didn't overflow */ | |
1400 | if (auvok == buvok) { | |
1401 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1402 | SP--; | |
1403 | SETu( product_low ); | |
1404 | RETURN; | |
1405 | } else if (product_low <= (UV)IV_MIN) { | |
1406 | /* 2s complement assumption again */ | |
1407 | /* -ve result, which could overflow an IV */ | |
1408 | SP--; | |
53e2bfb7 DM |
1409 | SETi(product_low == (UV)IV_MIN |
1410 | ? IV_MIN : -(IV)product_low); | |
28e5dec8 JH |
1411 | RETURN; |
1412 | } /* else drop to NVs below. */ | |
1413 | } | |
1414 | } /* product_middle too large */ | |
1415 | } /* ahigh && bhigh */ | |
800401ee JH |
1416 | } /* SvIOK(svl) */ |
1417 | } /* SvIOK(svr) */ | |
28e5dec8 | 1418 | #endif |
a0d0e21e | 1419 | { |
6f1401dc DM |
1420 | NV right = SvNV_nomg(svr); |
1421 | NV left = SvNV_nomg(svl); | |
230ee21f DM |
1422 | NV result = left * right; |
1423 | ||
4efa5a16 | 1424 | (void)POPs; |
1f02ab1d | 1425 | #if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1426 | if (Perl_isinf(result)) { |
1427 | Zero((U8*)&result + 8, 8, U8); | |
3ec400f5 | 1428 | } |
3ec400f5 | 1429 | #endif |
230ee21f | 1430 | SETn(result); |
a0d0e21e | 1431 | RETURN; |
79072805 | 1432 | } |
a0d0e21e LW |
1433 | } |
1434 | ||
1435 | PP(pp_divide) | |
1436 | { | |
20b7effb | 1437 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1438 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1439 | svr = TOPs; | |
1440 | svl = TOPm1s; | |
5479d192 | 1441 | /* Only try to do UV divide first |
68795e93 | 1442 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1443 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1444 | to preserve)) | |
1445 | The assumption is that it is better to use floating point divide | |
1446 | whenever possible, only doing integer divide first if we can't be sure. | |
1447 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1448 | can be too large to preserve, so don't need to compile the code to | |
1449 | test the size of UVs. */ | |
1450 | ||
a0d0e21e | 1451 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1452 | # define PERL_TRY_UV_DIVIDE |
1453 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1454 | #else |
5479d192 NC |
1455 | # ifdef PERL_PRESERVE_IVUV |
1456 | # ifndef NV_PRESERVES_UV | |
1457 | # define PERL_TRY_UV_DIVIDE | |
1458 | # endif | |
1459 | # endif | |
a0d0e21e | 1460 | #endif |
5479d192 NC |
1461 | |
1462 | #ifdef PERL_TRY_UV_DIVIDE | |
01f91bf2 | 1463 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
800401ee JH |
1464 | bool left_non_neg = SvUOK(svl); |
1465 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1466 | UV left; |
1467 | UV right; | |
1468 | ||
1469 | if (right_non_neg) { | |
800401ee | 1470 | right = SvUVX(svr); |
5479d192 NC |
1471 | } |
1472 | else { | |
800401ee | 1473 | const IV biv = SvIVX(svr); |
5479d192 NC |
1474 | if (biv >= 0) { |
1475 | right = biv; | |
1476 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1477 | } | |
1478 | else { | |
02b08bbc | 1479 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
5479d192 NC |
1480 | } |
1481 | } | |
1482 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1483 | warning before dieing, hence this test goes here. | |
1484 | If it were immediately before the second SvIV_please, then | |
1485 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1486 | no inspection would give no warning. */ |
5479d192 NC |
1487 | if (right == 0) |
1488 | DIE(aTHX_ "Illegal division by zero"); | |
1489 | ||
1490 | if (left_non_neg) { | |
800401ee | 1491 | left = SvUVX(svl); |
5479d192 NC |
1492 | } |
1493 | else { | |
800401ee | 1494 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1495 | if (aiv >= 0) { |
1496 | left = aiv; | |
1497 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1498 | } | |
1499 | else { | |
02b08bbc | 1500 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
5479d192 NC |
1501 | } |
1502 | } | |
1503 | ||
1504 | if (left >= right | |
1505 | #ifdef SLOPPYDIVIDE | |
1506 | /* For sloppy divide we always attempt integer division. */ | |
1507 | #else | |
1508 | /* Otherwise we only attempt it if either or both operands | |
1509 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1510 | we fall through to the NV divide code below. However, |
1511 | as left >= right to ensure integer result here, we know that | |
1512 | we can skip the test on the right operand - right big | |
1513 | enough not to be preserved can't get here unless left is | |
1514 | also too big. */ | |
1515 | ||
1516 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1517 | #endif |
1518 | ) { | |
1519 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1520 | const UV result = left / right; |
5479d192 NC |
1521 | if (result * right == left) { |
1522 | SP--; /* result is valid */ | |
1523 | if (left_non_neg == right_non_neg) { | |
1524 | /* signs identical, result is positive. */ | |
1525 | SETu( result ); | |
1526 | RETURN; | |
1527 | } | |
1528 | /* 2s complement assumption */ | |
1529 | if (result <= (UV)IV_MIN) | |
02b08bbc | 1530 | SETi(result == (UV)IV_MIN ? IV_MIN : -(IV)result); |
5479d192 NC |
1531 | else { |
1532 | /* It's exact but too negative for IV. */ | |
1533 | SETn( -(NV)result ); | |
1534 | } | |
1535 | RETURN; | |
1536 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1537 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
01f91bf2 | 1538 | } /* one operand wasn't SvIOK */ |
5479d192 NC |
1539 | #endif /* PERL_TRY_UV_DIVIDE */ |
1540 | { | |
6f1401dc DM |
1541 | NV right = SvNV_nomg(svr); |
1542 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1543 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1544 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1545 | if (! Perl_isnan(right) && right == 0.0) | |
1546 | #else | |
659c4b96 | 1547 | if (right == 0.0) |
ebc6a117 | 1548 | #endif |
5479d192 NC |
1549 | DIE(aTHX_ "Illegal division by zero"); |
1550 | PUSHn( left / right ); | |
1551 | RETURN; | |
79072805 | 1552 | } |
a0d0e21e LW |
1553 | } |
1554 | ||
1555 | PP(pp_modulo) | |
1556 | { | |
20b7effb | 1557 | dSP; dATARGET; |
6f1401dc | 1558 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); |
a0d0e21e | 1559 | { |
9c5ffd7c JH |
1560 | UV left = 0; |
1561 | UV right = 0; | |
dc656993 JH |
1562 | bool left_neg = FALSE; |
1563 | bool right_neg = FALSE; | |
e2c88acc NC |
1564 | bool use_double = FALSE; |
1565 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1566 | NV dright = 0.0; |
1567 | NV dleft = 0.0; | |
6f1401dc DM |
1568 | SV * const svr = TOPs; |
1569 | SV * const svl = TOPm1s; | |
01f91bf2 | 1570 | if (SvIV_please_nomg(svr)) { |
800401ee | 1571 | right_neg = !SvUOK(svr); |
e2c88acc | 1572 | if (!right_neg) { |
800401ee | 1573 | right = SvUVX(svr); |
e2c88acc | 1574 | } else { |
800401ee | 1575 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1576 | if (biv >= 0) { |
1577 | right = biv; | |
1578 | right_neg = FALSE; /* effectively it's a UV now */ | |
1579 | } else { | |
02b08bbc | 1580 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
e2c88acc NC |
1581 | } |
1582 | } | |
1583 | } | |
1584 | else { | |
6f1401dc | 1585 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1586 | right_neg = dright < 0; |
1587 | if (right_neg) | |
1588 | dright = -dright; | |
e2c88acc NC |
1589 | if (dright < UV_MAX_P1) { |
1590 | right = U_V(dright); | |
1591 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1592 | } else { | |
1593 | use_double = TRUE; | |
1594 | } | |
787eafbd | 1595 | } |
a0d0e21e | 1596 | |
e2c88acc NC |
1597 | /* At this point use_double is only true if right is out of range for |
1598 | a UV. In range NV has been rounded down to nearest UV and | |
1599 | use_double false. */ | |
01f91bf2 | 1600 | if (!use_double && SvIV_please_nomg(svl)) { |
800401ee | 1601 | left_neg = !SvUOK(svl); |
e2c88acc | 1602 | if (!left_neg) { |
800401ee | 1603 | left = SvUVX(svl); |
e2c88acc | 1604 | } else { |
800401ee | 1605 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1606 | if (aiv >= 0) { |
1607 | left = aiv; | |
1608 | left_neg = FALSE; /* effectively it's a UV now */ | |
1609 | } else { | |
02b08bbc | 1610 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
e2c88acc NC |
1611 | } |
1612 | } | |
e2c88acc | 1613 | } |
787eafbd | 1614 | else { |
6f1401dc | 1615 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1616 | left_neg = dleft < 0; |
1617 | if (left_neg) | |
1618 | dleft = -dleft; | |
68dc0745 | 1619 | |
e2c88acc NC |
1620 | /* This should be exactly the 5.6 behaviour - if left and right are |
1621 | both in range for UV then use U_V() rather than floor. */ | |
1622 | if (!use_double) { | |
1623 | if (dleft < UV_MAX_P1) { | |
1624 | /* right was in range, so is dleft, so use UVs not double. | |
1625 | */ | |
1626 | left = U_V(dleft); | |
1627 | } | |
1628 | /* left is out of range for UV, right was in range, so promote | |
1629 | right (back) to double. */ | |
1630 | else { | |
1631 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1632 | consistent with the implicit +0 floor in the U_V() | |
1633 | inside the #if 1. */ | |
1634 | dleft = Perl_floor(dleft + 0.5); | |
1635 | use_double = TRUE; | |
1636 | if (dright_valid) | |
1637 | dright = Perl_floor(dright + 0.5); | |
1638 | else | |
1639 | dright = right; | |
1640 | } | |
1641 | } | |
1642 | } | |
6f1401dc | 1643 | sp -= 2; |
787eafbd | 1644 | if (use_double) { |
65202027 | 1645 | NV dans; |
787eafbd | 1646 | |
659c4b96 | 1647 | if (!dright) |
cea2e8a9 | 1648 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1649 | |
65202027 | 1650 | dans = Perl_fmod(dleft, dright); |
659c4b96 | 1651 | if ((left_neg != right_neg) && dans) |
787eafbd IZ |
1652 | dans = dright - dans; |
1653 | if (right_neg) | |
1654 | dans = -dans; | |
1655 | sv_setnv(TARG, dans); | |
1656 | } | |
1657 | else { | |
1658 | UV ans; | |
1659 | ||
787eafbd | 1660 | if (!right) |
cea2e8a9 | 1661 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1662 | |
1663 | ans = left % right; | |
1664 | if ((left_neg != right_neg) && ans) | |
1665 | ans = right - ans; | |
1666 | if (right_neg) { | |
1667 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1668 | /* could change -foo to be (~foo)+1 instead */ | |
1669 | if (ans <= ~((UV)IV_MAX)+1) | |
1670 | sv_setiv(TARG, ~ans+1); | |
1671 | else | |
65202027 | 1672 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1673 | } |
1674 | else | |
1675 | sv_setuv(TARG, ans); | |
1676 | } | |
1677 | PUSHTARG; | |
1678 | RETURN; | |
79072805 | 1679 | } |
a0d0e21e | 1680 | } |
79072805 | 1681 | |
a0d0e21e LW |
1682 | PP(pp_repeat) |
1683 | { | |
20b7effb | 1684 | dSP; dATARGET; |
eb578fdb | 1685 | IV count; |
6f1401dc | 1686 | SV *sv; |
02a7a248 | 1687 | bool infnan = FALSE; |
6f1401dc | 1688 | |
82334630 | 1689 | if (GIMME_V == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
6f1401dc DM |
1690 | /* TODO: think of some way of doing list-repeat overloading ??? */ |
1691 | sv = POPs; | |
1692 | SvGETMAGIC(sv); | |
1693 | } | |
1694 | else { | |
3a100dab FC |
1695 | if (UNLIKELY(PL_op->op_private & OPpREPEAT_DOLIST)) { |
1696 | /* The parser saw this as a list repeat, and there | |
1697 | are probably several items on the stack. But we're | |
1698 | in scalar/void context, and there's no pp_list to save us | |
1699 | now. So drop the rest of the items -- robin@kitsite.com | |
1700 | */ | |
1701 | dMARK; | |
1702 | if (MARK + 1 < SP) { | |
1703 | MARK[1] = TOPm1s; | |
1704 | MARK[2] = TOPs; | |
1705 | } | |
1706 | else { | |
1707 | dTOPss; | |
1708 | ASSUME(MARK + 1 == SP); | |
1709 | XPUSHs(sv); | |
1710 | MARK[1] = &PL_sv_undef; | |
1711 | } | |
1712 | SP = MARK + 2; | |
1713 | } | |
6f1401dc DM |
1714 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); |
1715 | sv = POPs; | |
1716 | } | |
1717 | ||
2b573ace JH |
1718 | if (SvIOKp(sv)) { |
1719 | if (SvUOK(sv)) { | |
6f1401dc | 1720 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1721 | if (uv > IV_MAX) |
1722 | count = IV_MAX; /* The best we can do? */ | |
1723 | else | |
1724 | count = uv; | |
1725 | } else { | |
b3211734 | 1726 | count = SvIV_nomg(sv); |
2b573ace JH |
1727 | } |
1728 | } | |
1729 | else if (SvNOKp(sv)) { | |
02a7a248 JH |
1730 | const NV nv = SvNV_nomg(sv); |
1731 | infnan = Perl_isinfnan(nv); | |
1732 | if (UNLIKELY(infnan)) { | |
1733 | count = 0; | |
1734 | } else { | |
1735 | if (nv < 0.0) | |
1736 | count = -1; /* An arbitrary negative integer */ | |
1737 | else | |
1738 | count = (IV)nv; | |
1739 | } | |
2b573ace JH |
1740 | } |
1741 | else | |
02a7a248 | 1742 | count = SvIV_nomg(sv); |
6f1401dc | 1743 | |
02a7a248 JH |
1744 | if (infnan) { |
1745 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
1746 | "Non-finite repeat count does nothing"); | |
1747 | } else if (count < 0) { | |
b3211734 KW |
1748 | count = 0; |
1749 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
02a7a248 | 1750 | "Negative repeat count does nothing"); |
b3211734 KW |
1751 | } |
1752 | ||
82334630 | 1753 | if (GIMME_V == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1754 | dMARK; |
052a7c76 | 1755 | const SSize_t items = SP - MARK; |
da9e430b | 1756 | const U8 mod = PL_op->op_flags & OPf_MOD; |
79072805 | 1757 | |
a0d0e21e | 1758 | if (count > 1) { |
052a7c76 | 1759 | SSize_t max; |
b3b27d01 | 1760 | |
052a7c76 DM |
1761 | if ( items > SSize_t_MAX / count /* max would overflow */ |
1762 | /* repeatcpy would overflow */ | |
1763 | || items > I32_MAX / (I32)sizeof(SV *) | |
b3b27d01 DM |
1764 | ) |
1765 | Perl_croak(aTHX_ "%s","Out of memory during list extend"); | |
1766 | max = items * count; | |
1767 | MEXTEND(MARK, max); | |
1768 | ||
a0d0e21e | 1769 | while (SP > MARK) { |
60779a30 DM |
1770 | if (*SP) { |
1771 | if (mod && SvPADTMP(*SP)) { | |
da9e430b | 1772 | *SP = sv_mortalcopy(*SP); |
60779a30 | 1773 | } |
976c8a39 | 1774 | SvTEMP_off((*SP)); |
da9e430b | 1775 | } |
a0d0e21e | 1776 | SP--; |
79072805 | 1777 | } |
a0d0e21e LW |
1778 | MARK++; |
1779 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1780 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1781 | SP += max; |
79072805 | 1782 | } |
a0d0e21e | 1783 | else if (count <= 0) |
052a7c76 | 1784 | SP = MARK; |
79072805 | 1785 | } |
a0d0e21e | 1786 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1787 | SV * const tmpstr = POPs; |
a0d0e21e | 1788 | STRLEN len; |
9b877dbb | 1789 | bool isutf; |
a0d0e21e | 1790 | |
6f1401dc DM |
1791 | if (TARG != tmpstr) |
1792 | sv_setsv_nomg(TARG, tmpstr); | |
1793 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1794 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1795 | if (count != 1) { |
1796 | if (count < 1) | |
1797 | SvCUR_set(TARG, 0); | |
1798 | else { | |
b3b27d01 DM |
1799 | STRLEN max; |
1800 | ||
1801 | if ( len > (MEM_SIZE_MAX-1) / (UV)count /* max would overflow */ | |
1802 | || len > (U32)I32_MAX /* repeatcpy would overflow */ | |
1803 | ) | |
1804 | Perl_croak(aTHX_ "%s", | |
1805 | "Out of memory during string extend"); | |
1806 | max = (UV)count * len + 1; | |
1807 | SvGROW(TARG, max); | |
1808 | ||
a0d0e21e | 1809 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1810 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1811 | } |
a0d0e21e | 1812 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1813 | } |
dfcb284a GS |
1814 | if (isutf) |
1815 | (void)SvPOK_only_UTF8(TARG); | |
1816 | else | |
1817 | (void)SvPOK_only(TARG); | |
b80b6069 | 1818 | |
a0d0e21e | 1819 | PUSHTARG; |
79072805 | 1820 | } |
a0d0e21e LW |
1821 | RETURN; |
1822 | } | |
79072805 | 1823 | |
a0d0e21e LW |
1824 | PP(pp_subtract) |
1825 | { | |
20b7effb | 1826 | dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1827 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1828 | svr = TOPs; | |
1829 | svl = TOPm1s; | |
230ee21f | 1830 | |
28e5dec8 | 1831 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1832 | |
1833 | /* special-case some simple common cases */ | |
1834 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1835 | IV il, ir; | |
1836 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1837 | if (flags & SVf_IOK) { | |
1838 | /* both args are simple IVs */ | |
1839 | UV topl, topr; | |
1840 | il = SvIVX(svl); | |
1841 | ir = SvIVX(svr); | |
1842 | do_iv: | |
1843 | topl = ((UV)il) >> (UVSIZE * 8 - 2); | |
1844 | topr = ((UV)ir) >> (UVSIZE * 8 - 2); | |
1845 | ||
1846 | /* if both are in a range that can't under/overflow, do a | |
1847 | * simple integer subtract: if the top of both numbers | |
1848 | * are 00 or 11, then it's safe */ | |
1849 | if (!( ((topl+1) | (topr+1)) & 2)) { | |
1850 | SP--; | |
1851 | TARGi(il - ir, 0); /* args not GMG, so can't be tainted */ | |
1852 | SETs(TARG); | |
1853 | RETURN; | |
1854 | } | |
1855 | goto generic; | |
1856 | } | |
1857 | else if (flags & SVf_NOK) { | |
1858 | /* both args are NVs */ | |
1859 | NV nl = SvNVX(svl); | |
1860 | NV nr = SvNVX(svr); | |
1861 | ||
3336af0b DD |
1862 | if ( |
1863 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
1864 | !Perl_isnan(nl) && nl == (NV)(il = (IV)nl) | |
1865 | && !Perl_isnan(nr) && nr == (NV)(ir = (IV)nr) | |
1866 | #else | |
1867 | nl == (NV)(il = (IV)nl) && nr == (NV)(ir = (IV)nr) | |
1868 | #endif | |
1869 | ) | |
230ee21f DM |
1870 | /* nothing was lost by converting to IVs */ |
1871 | goto do_iv; | |
1872 | SP--; | |
1873 | TARGn(nl - nr, 0); /* args not GMG, so can't be tainted */ | |
1874 | SETs(TARG); | |
1875 | RETURN; | |
1876 | } | |
1877 | } | |
1878 | ||
1879 | generic: | |
1880 | ||
1881 | useleft = USE_LEFT(svl); | |
7dca457a NC |
1882 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1883 | "bad things" happen if you rely on signed integers wrapping. */ | |
01f91bf2 | 1884 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1885 | /* Unless the left argument is integer in range we are going to have to |
1886 | use NV maths. Hence only attempt to coerce the right argument if | |
1887 | we know the left is integer. */ | |
eb578fdb | 1888 | UV auv = 0; |
9c5ffd7c | 1889 | bool auvok = FALSE; |
7dca457a NC |
1890 | bool a_valid = 0; |
1891 | ||
28e5dec8 | 1892 | if (!useleft) { |
7dca457a NC |
1893 | auv = 0; |
1894 | a_valid = auvok = 1; | |
1895 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1896 | } else { |
1897 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1898 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1899 | if ((auvok = SvUOK(svl))) |
1900 | auv = SvUVX(svl); | |
7dca457a | 1901 | else { |
eb578fdb | 1902 | const IV aiv = SvIVX(svl); |
7dca457a NC |
1903 | if (aiv >= 0) { |
1904 | auv = aiv; | |
1905 | auvok = 1; /* Now acting as a sign flag. */ | |
1906 | } else { /* 2s complement assumption for IV_MIN */ | |
53e2bfb7 | 1907 | auv = (aiv == IV_MIN) ? (UV)aiv : (UV)-aiv; |
28e5dec8 | 1908 | } |
7dca457a NC |
1909 | } |
1910 | a_valid = 1; | |
1911 | } | |
1912 | } | |
1913 | if (a_valid) { | |
1914 | bool result_good = 0; | |
1915 | UV result; | |
eb578fdb | 1916 | UV buv; |
800401ee | 1917 | bool buvok = SvUOK(svr); |
9041c2e3 | 1918 | |
7dca457a | 1919 | if (buvok) |
800401ee | 1920 | buv = SvUVX(svr); |
7dca457a | 1921 | else { |
eb578fdb | 1922 | const IV biv = SvIVX(svr); |
7dca457a NC |
1923 | if (biv >= 0) { |
1924 | buv = biv; | |
1925 | buvok = 1; | |
1926 | } else | |
53e2bfb7 | 1927 | buv = (biv == IV_MIN) ? (UV)biv : (UV)-biv; |
7dca457a NC |
1928 | } |
1929 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1930 | else "IV" now, independent of how it came in. |
7dca457a NC |
1931 | if a, b represents positive, A, B negative, a maps to -A etc |
1932 | a - b => (a - b) | |
1933 | A - b => -(a + b) | |
1934 | a - B => (a + b) | |
1935 | A - B => -(a - b) | |
1936 | all UV maths. negate result if A negative. | |
1937 | subtract if signs same, add if signs differ. */ | |
1938 | ||
1939 | if (auvok ^ buvok) { | |
1940 | /* Signs differ. */ | |
1941 | result = auv + buv; | |
1942 | if (result >= auv) | |
1943 | result_good = 1; | |
1944 | } else { | |
1945 | /* Signs same */ | |
1946 | if (auv >= buv) { | |
1947 | result = auv - buv; | |
1948 | /* Must get smaller */ | |
1949 | if (result <= auv) | |
1950 | result_good = 1; | |
1951 | } else { | |
1952 | result = buv - auv; | |
1953 | if (result <= buv) { | |
1954 | /* result really should be -(auv-buv). as its negation | |
1955 | of true value, need to swap our result flag */ | |
1956 | auvok = !auvok; | |
1957 | result_good = 1; | |
28e5dec8 | 1958 | } |
28e5dec8 JH |
1959 | } |
1960 | } | |
7dca457a NC |
1961 | if (result_good) { |
1962 | SP--; | |
1963 | if (auvok) | |
1964 | SETu( result ); | |
1965 | else { | |
1966 | /* Negate result */ | |
1967 | if (result <= (UV)IV_MIN) | |
53e2bfb7 DM |
1968 | SETi(result == (UV)IV_MIN |
1969 | ? IV_MIN : -(IV)result); | |
7dca457a NC |
1970 | else { |
1971 | /* result valid, but out of range for IV. */ | |
1972 | SETn( -(NV)result ); | |
1973 | } | |
1974 | } | |
1975 | RETURN; | |
1976 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1977 | } |
1978 | } | |
230ee21f DM |
1979 | #else |
1980 | useleft = USE_LEFT(svl); | |
28e5dec8 | 1981 | #endif |
a0d0e21e | 1982 | { |
6f1401dc | 1983 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1984 | (void)POPs; |
1985 | ||
28e5dec8 JH |
1986 | if (!useleft) { |
1987 | /* left operand is undef, treat as zero - value */ | |
1988 | SETn(-value); | |
1989 | RETURN; | |
1990 | } | |
6f1401dc | 1991 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1992 | RETURN; |
79072805 | 1993 | } |
a0d0e21e | 1994 | } |
79072805 | 1995 | |
b3498293 JH |
1996 | #define IV_BITS (IVSIZE * 8) |
1997 | ||
1998 | static UV S_uv_shift(UV uv, int shift, bool left) | |
1999 | { | |
2000 | if (shift < 0) { | |
2001 | shift = -shift; | |
2002 | left = !left; | |
2003 | } | |
2004 | if (shift >= IV_BITS) { | |
2005 | return 0; | |
2006 | } | |
2007 | return left ? uv << shift : uv >> shift; | |
2008 | } | |
2009 | ||
2010 | static IV S_iv_shift(IV iv, int shift, bool left) | |
2011 | { | |
2012 | if (shift < 0) { | |
2013 | shift = -shift; | |
2014 | left = !left; | |
2015 | } | |
2016 | if (shift >= IV_BITS) { | |
b69687e7 | 2017 | return iv < 0 && !left ? -1 : 0; |
b3498293 JH |
2018 | } |
2019 | return left ? iv << shift : iv >> shift; | |
2020 | } | |
2021 | ||
2022 | #define UV_LEFT_SHIFT(uv, shift) S_uv_shift(uv, shift, TRUE) | |
2023 | #define UV_RIGHT_SHIFT(uv, shift) S_uv_shift(uv, shift, FALSE) | |
2024 | #define IV_LEFT_SHIFT(iv, shift) S_iv_shift(iv, shift, TRUE) | |
2025 | #define IV_RIGHT_SHIFT(iv, shift) S_iv_shift(iv, shift, FALSE) | |
2026 | ||
a0d0e21e LW |
2027 | PP(pp_left_shift) |
2028 | { | |
20b7effb | 2029 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2030 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2031 | svr = POPs; |
2032 | svl = TOPs; | |
a0d0e21e | 2033 | { |
6f1401dc | 2034 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2035 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2036 | SETi(IV_LEFT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2037 | } |
2038 | else { | |
b3498293 | 2039 | SETu(UV_LEFT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2040 | } |
55497cff | 2041 | RETURN; |
79072805 | 2042 | } |
a0d0e21e | 2043 | } |
79072805 | 2044 | |
a0d0e21e LW |
2045 | PP(pp_right_shift) |
2046 | { | |
20b7effb | 2047 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2048 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2049 | svr = POPs; |
2050 | svl = TOPs; | |
a0d0e21e | 2051 | { |
6f1401dc | 2052 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2053 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2054 | SETi(IV_RIGHT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2055 | } |
2056 | else { | |
b3498293 | 2057 | SETu(UV_RIGHT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2058 | } |
a0d0e21e | 2059 | RETURN; |
93a17b20 | 2060 | } |
79072805 LW |
2061 | } |
2062 | ||
a0d0e21e | 2063 | PP(pp_lt) |
79072805 | 2064 | { |
20b7effb | 2065 | dSP; |
33efebe6 DM |
2066 | SV *left, *right; |
2067 | ||
a42d0242 | 2068 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
2069 | right = POPs; |
2070 | left = TOPs; | |
2071 | SETs(boolSV( | |
2072 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2073 | ? (SvIVX(left) < SvIVX(right)) | |
2074 | : (do_ncmp(left, right) == -1) | |
2075 | )); | |
2076 | RETURN; | |
a0d0e21e | 2077 | } |
79072805 | 2078 | |
a0d0e21e LW |
2079 | PP(pp_gt) |
2080 | { | |
20b7effb | 2081 | dSP; |
33efebe6 | 2082 | SV *left, *right; |
1b6737cc | 2083 | |
33efebe6 DM |
2084 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
2085 | right = POPs; | |
2086 | left = TOPs; | |
2087 | SETs(boolSV( | |
2088 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2089 | ? (SvIVX(left) > SvIVX(right)) | |
2090 | : (do_ncmp(left, right) == 1) | |
2091 | )); | |
2092 | RETURN; | |
a0d0e21e LW |
2093 | } |
2094 | ||
2095 | PP(pp_le) | |
2096 | { | |
20b7effb | 2097 | dSP; |
33efebe6 | 2098 | SV *left, *right; |
1b6737cc | 2099 | |
33efebe6 DM |
2100 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
2101 | right = POPs; | |
2102 | left = TOPs; | |
2103 | SETs(boolSV( | |
2104 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2105 | ? (SvIVX(left) <= SvIVX(right)) | |
2106 | : (do_ncmp(left, right) <= 0) | |
2107 | )); | |
2108 | RETURN; | |
a0d0e21e LW |
2109 | } |
2110 | ||
2111 | PP(pp_ge) | |
2112 | { | |
20b7effb | 2113 | dSP; |
33efebe6 DM |
2114 | SV *left, *right; |
2115 | ||
2116 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
2117 | right = POPs; | |
2118 | left = TOPs; | |
2119 | SETs(boolSV( | |
2120 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2121 | ? (SvIVX(left) >= SvIVX(right)) | |
2122 | : ( (do_ncmp(left, right) & 2) == 0) | |
2123 | )); | |
2124 | RETURN; | |
2125 | } | |
1b6737cc | 2126 | |
33efebe6 DM |
2127 | PP(pp_ne) |
2128 | { | |
20b7effb | 2129 | dSP; |
33efebe6 DM |
2130 | SV *left, *right; |
2131 | ||
2132 | tryAMAGICbin_MG(ne_amg, AMGf_set|AMGf_numeric); | |
2133 | right = POPs; | |
2134 | left = TOPs; | |
2135 | SETs(boolSV( | |
2136 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2137 | ? (SvIVX(left) != SvIVX(right)) | |
2138 | : (do_ncmp(left, right) != 0) | |
2139 | )); | |
2140 | RETURN; | |
2141 | } | |
1b6737cc | 2142 | |
33efebe6 DM |
2143 | /* compare left and right SVs. Returns: |
2144 | * -1: < | |
2145 | * 0: == | |
2146 | * 1: > | |
2147 | * 2: left or right was a NaN | |
2148 | */ | |
2149 | I32 | |
2150 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2151 | { | |
33efebe6 DM |
2152 | PERL_ARGS_ASSERT_DO_NCMP; |
2153 | #ifdef PERL_PRESERVE_IVUV | |
33efebe6 | 2154 | /* Fortunately it seems NaN isn't IOK */ |
01f91bf2 | 2155 | if (SvIV_please_nomg(right) && SvIV_please_nomg(left)) { |
33efebe6 DM |
2156 | if (!SvUOK(left)) { |
2157 | const IV leftiv = SvIVX(left); | |
2158 | if (!SvUOK(right)) { | |
2159 | /* ## IV <=> IV ## */ | |
2160 | const IV rightiv = SvIVX(right); | |
2161 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2162 | } |
33efebe6 DM |
2163 | /* ## IV <=> UV ## */ |
2164 | if (leftiv < 0) | |
2165 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2166 | return -1; | |
2167 | { | |
2168 | const UV rightuv = SvUVX(right); | |
2169 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2170 | } |
28e5dec8 | 2171 | } |
79072805 | 2172 | |
33efebe6 DM |
2173 | if (SvUOK(right)) { |
2174 | /* ## UV <=> UV ## */ | |
2175 | const UV leftuv = SvUVX(left); | |
2176 | const UV rightuv = SvUVX(right); | |
2177 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2178 | } |
33efebe6 DM |
2179 | /* ## UV <=> IV ## */ |
2180 | { | |
2181 | const IV rightiv = SvIVX(right); | |
2182 | if (rightiv < 0) | |
2183 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2184 | return 1; | |
2185 | { | |
2186 | const UV leftuv = SvUVX(left); | |
2187 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2188 | } |
28e5dec8 | 2189 | } |
e5964223 | 2190 | NOT_REACHED; /* NOTREACHED */ |
28e5dec8 JH |
2191 | } |
2192 | #endif | |
a0d0e21e | 2193 | { |
33efebe6 DM |
2194 | NV const rnv = SvNV_nomg(right); |
2195 | NV const lnv = SvNV_nomg(left); | |
2196 | ||
cab190d4 | 2197 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2198 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2199 | return 2; | |
2200 | } | |
2201 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2202 | #else |
33efebe6 DM |
2203 | if (lnv < rnv) |
2204 | return -1; | |
2205 | if (lnv > rnv) | |
2206 | return 1; | |
659c4b96 | 2207 | if (lnv == rnv) |
33efebe6 DM |
2208 | return 0; |
2209 | return 2; | |
cab190d4 | 2210 | #endif |
a0d0e21e | 2211 | } |
79072805 LW |
2212 | } |
2213 | ||
33efebe6 | 2214 | |
a0d0e21e | 2215 | PP(pp_ncmp) |
79072805 | 2216 | { |
20b7effb | 2217 | dSP; |
33efebe6 DM |
2218 | SV *left, *right; |
2219 | I32 value; | |
a42d0242 | 2220 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2221 | right = POPs; |
2222 | left = TOPs; | |
2223 | value = do_ncmp(left, right); | |
2224 | if (value == 2) { | |
3280af22 | 2225 | SETs(&PL_sv_undef); |
79072805 | 2226 | } |
33efebe6 DM |
2227 | else { |
2228 | dTARGET; | |
2229 | SETi(value); | |
2230 | } | |
2231 | RETURN; | |
a0d0e21e | 2232 | } |
79072805 | 2233 | |
b1c05ba5 DM |
2234 | |
2235 | /* also used for: pp_sge() pp_sgt() pp_slt() */ | |
2236 | ||
afd9910b | 2237 | PP(pp_sle) |
a0d0e21e | 2238 | { |
20b7effb | 2239 | dSP; |
79072805 | 2240 | |
afd9910b NC |
2241 | int amg_type = sle_amg; |
2242 | int multiplier = 1; | |
2243 | int rhs = 1; | |
79072805 | 2244 | |
afd9910b NC |
2245 | switch (PL_op->op_type) { |
2246 | case OP_SLT: | |
2247 | amg_type = slt_amg; | |
2248 | /* cmp < 0 */ | |
2249 | rhs = 0; | |
2250 | break; | |
2251 | case OP_SGT: | |
2252 | amg_type = sgt_amg; | |
2253 | /* cmp > 0 */ | |
2254 | multiplier = -1; | |
2255 | rhs = 0; | |
2256 | break; | |
2257 | case OP_SGE: | |
2258 | amg_type = sge_amg; | |
2259 | /* cmp >= 0 */ | |
2260 | multiplier = -1; | |
2261 | break; | |
79072805 | 2262 | } |
79072805 | 2263 | |
6f1401dc | 2264 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2265 | { |
2266 | dPOPTOPssrl; | |
130c5df3 | 2267 | const int cmp = |
5778acb6 | 2268 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2269 | (IN_LC_RUNTIME(LC_COLLATE)) |
2270 | ? sv_cmp_locale_flags(left, right, 0) | |
2271 | : | |
2272 | #endif | |
2273 | sv_cmp_flags(left, right, 0); | |
afd9910b | 2274 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2275 | RETURN; |
2276 | } | |
2277 | } | |
79072805 | 2278 | |
36477c24 | 2279 | PP(pp_seq) |
2280 | { | |
20b7effb | 2281 | dSP; |
6f1401dc | 2282 | tryAMAGICbin_MG(seq_amg, AMGf_set); |
36477c24 | 2283 | { |
2284 | dPOPTOPssrl; | |
078504b2 | 2285 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2286 | RETURN; |
2287 | } | |
2288 | } | |
79072805 | 2289 | |
a0d0e21e | 2290 | PP(pp_sne) |
79072805 | 2291 | { |
20b7effb | 2292 | dSP; |
6f1401dc | 2293 | tryAMAGICbin_MG(sne_amg, AMGf_set); |
a0d0e21e LW |
2294 | { |
2295 | dPOPTOPssrl; | |
078504b2 | 2296 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2297 | RETURN; |
463ee0b2 | 2298 | } |
79072805 LW |
2299 | } |
2300 | ||
a0d0e21e | 2301 | PP(pp_scmp) |
79072805 | 2302 | { |
20b7effb | 2303 | dSP; dTARGET; |
6f1401dc | 2304 | tryAMAGICbin_MG(scmp_amg, 0); |
a0d0e21e LW |
2305 | { |
2306 | dPOPTOPssrl; | |
130c5df3 | 2307 | const int cmp = |
5778acb6 | 2308 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2309 | (IN_LC_RUNTIME(LC_COLLATE)) |
2310 | ? sv_cmp_locale_flags(left, right, 0) | |
2311 | : | |
2312 | #endif | |
2313 | sv_cmp_flags(left, right, 0); | |
bbce6d69 | 2314 | SETi( cmp ); |
a0d0e21e LW |
2315 | RETURN; |
2316 | } | |
2317 | } | |
79072805 | 2318 | |
55497cff | 2319 | PP(pp_bit_and) |
2320 | { | |
20b7effb | 2321 | dSP; dATARGET; |
6f1401dc | 2322 | tryAMAGICbin_MG(band_amg, AMGf_assign); |
a0d0e21e LW |
2323 | { |
2324 | dPOPTOPssrl; | |
4633a7c4 | 2325 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2326 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2327 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2328 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2329 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2330 | SETi(i); |
d0ba1bd2 JH |
2331 | } |
2332 | else { | |
1b6737cc | 2333 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2334 | SETu(u); |
d0ba1bd2 | 2335 | } |
5ee80e13 | 2336 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2337 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2338 | } |
2339 | else { | |
533c011a | 2340 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2341 | SETTARG; |
2342 | } | |
2343 | RETURN; | |
2344 | } | |
2345 | } | |
79072805 | 2346 | |
5d01050a FC |
2347 | PP(pp_nbit_and) |
2348 | { | |
2349 | dSP; | |
636ac8fc | 2350 | tryAMAGICbin_MG(band_amg, AMGf_assign|AMGf_numarg); |
5d01050a FC |
2351 | { |
2352 | dATARGET; dPOPTOPssrl; | |
2353 | if (PL_op->op_private & HINT_INTEGER) { | |
2354 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); | |
2355 | SETi(i); | |
2356 | } | |
2357 | else { | |
2358 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); | |
2359 | SETu(u); | |
2360 | } | |
2361 | } | |
2362 | RETURN; | |
2363 | } | |
2364 | ||
2365 | PP(pp_sbit_and) | |
2366 | { | |
2367 | dSP; | |
2368 | tryAMAGICbin_MG(sband_amg, AMGf_assign); | |
2369 | { | |
2370 | dATARGET; dPOPTOPssrl; | |
2371 | do_vop(OP_BIT_AND, TARG, left, right); | |
2372 | RETSETTARG; | |
2373 | } | |
2374 | } | |
b1c05ba5 DM |
2375 | |
2376 | /* also used for: pp_bit_xor() */ | |
2377 | ||
a0d0e21e LW |
2378 | PP(pp_bit_or) |
2379 | { | |
20b7effb | 2380 | dSP; dATARGET; |
3658c1f1 NC |
2381 | const int op_type = PL_op->op_type; |
2382 | ||
6f1401dc | 2383 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2384 | { |
2385 | dPOPTOPssrl; | |
4633a7c4 | 2386 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2387 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2388 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2389 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2390 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2391 | const IV r = SvIV_nomg(right); | |
2392 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2393 | SETi(result); | |
d0ba1bd2 JH |
2394 | } |
2395 | else { | |
3658c1f1 NC |
2396 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2397 | const UV r = SvUV_nomg(right); | |
2398 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2399 | SETu(result); | |
d0ba1bd2 | 2400 | } |
5ee80e13 | 2401 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2402 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2403 | } |
2404 | else { | |
3658c1f1 | 2405 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2406 | SETTARG; |
2407 | } | |
2408 | RETURN; | |
79072805 | 2409 | } |
a0d0e21e | 2410 | } |
79072805 | 2411 | |
5d01050a FC |
2412 | /* also used for: pp_nbit_xor() */ |
2413 | ||
2414 | PP(pp_nbit_or) | |
2415 | { | |
2416 | dSP; | |
2417 | const int op_type = PL_op->op_type; | |
2418 | ||
2419 | tryAMAGICbin_MG((op_type == OP_NBIT_OR ? bor_amg : bxor_amg), | |
636ac8fc | 2420 | AMGf_assign|AMGf_numarg); |
5d01050a FC |
2421 | { |
2422 | dATARGET; dPOPTOPssrl; | |
2423 | if (PL_op->op_private & HINT_INTEGER) { | |
2424 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); | |
2425 | const IV r = SvIV_nomg(right); | |
2426 | const IV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2427 | SETi(result); | |
2428 | } | |
2429 | else { | |
2430 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); | |
2431 | const UV r = SvUV_nomg(right); | |
2432 | const UV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2433 | SETu(result); | |
2434 | } | |
2435 | } | |
2436 | RETURN; | |
2437 | } | |
2438 | ||
2439 | /* also used for: pp_sbit_xor() */ | |
2440 | ||
2441 | PP(pp_sbit_or) | |
2442 | { | |
2443 | dSP; | |
2444 | const int op_type = PL_op->op_type; | |
2445 | ||
2446 | tryAMAGICbin_MG((op_type == OP_SBIT_OR ? sbor_amg : sbxor_amg), | |
2447 | AMGf_assign); | |
2448 | { | |
2449 | dATARGET; dPOPTOPssrl; | |
2450 | do_vop(op_type == OP_SBIT_OR ? OP_BIT_OR : OP_BIT_XOR, TARG, left, | |
2451 | right); | |
2452 | RETSETTARG; | |
2453 | } | |
2454 | } | |
2455 | ||
1c2b3fd6 FC |
2456 | PERL_STATIC_INLINE bool |
2457 | S_negate_string(pTHX) | |
2458 | { | |
2459 | dTARGET; dSP; | |
2460 | STRLEN len; | |
2461 | const char *s; | |
2462 | SV * const sv = TOPs; | |
2463 | if (!SvPOKp(sv) || SvNIOK(sv) || (!SvPOK(sv) && SvNIOKp(sv))) | |
2464 | return FALSE; | |
2465 | s = SvPV_nomg_const(sv, len); | |
2466 | if (isIDFIRST(*s)) { | |
2467 | sv_setpvs(TARG, "-"); | |
2468 | sv_catsv(TARG, sv); | |
2469 | } | |
2470 | else if (*s == '+' || (*s == '-' && !looks_like_number(sv))) { | |
2471 | sv_setsv_nomg(TARG, sv); | |
2472 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
2473 | } | |
2474 | else return FALSE; | |
245d035e | 2475 | SETTARG; |
1c2b3fd6 FC |
2476 | return TRUE; |
2477 | } | |
2478 | ||
a0d0e21e LW |
2479 | PP(pp_negate) |
2480 | { | |
20b7effb | 2481 | dSP; dTARGET; |
6f1401dc | 2482 | tryAMAGICun_MG(neg_amg, AMGf_numeric); |
1c2b3fd6 | 2483 | if (S_negate_string(aTHX)) return NORMAL; |
a0d0e21e | 2484 | { |
6f1401dc | 2485 | SV * const sv = TOPs; |
a5b92898 | 2486 | |
d96ab1b5 | 2487 | if (SvIOK(sv)) { |
7dbe3150 | 2488 | /* It's publicly an integer */ |
28e5dec8 | 2489 | oops_its_an_int: |
9b0e499b GS |
2490 | if (SvIsUV(sv)) { |
2491 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2492 | /* 2s complement assumption. */ |
d14578b8 KW |
2493 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == |
2494 | IV_MIN */ | |
245d035e | 2495 | return NORMAL; |
9b0e499b GS |
2496 | } |
2497 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2498 | SETi(-SvIVX(sv)); |
245d035e | 2499 | return NORMAL; |
9b0e499b GS |
2500 | } |
2501 | } | |
2502 | else if (SvIVX(sv) != IV_MIN) { | |
2503 | SETi(-SvIVX(sv)); | |
245d035e | 2504 | return NORMAL; |
9b0e499b | 2505 | } |
28e5dec8 JH |
2506 | #ifdef PERL_PRESERVE_IVUV |
2507 | else { | |
2508 | SETu((UV)IV_MIN); | |
245d035e | 2509 | return NORMAL; |
28e5dec8 JH |
2510 | } |
2511 | #endif | |
9b0e499b | 2512 | } |
8a5decd8 | 2513 | if (SvNIOKp(sv) && (SvNIOK(sv) || !SvPOK(sv))) |
6f1401dc | 2514 | SETn(-SvNV_nomg(sv)); |
1c2b3fd6 | 2515 | else if (SvPOKp(sv) && SvIV_please_nomg(sv)) |
8eb28a70 | 2516 | goto oops_its_an_int; |
4633a7c4 | 2517 | else |
6f1401dc | 2518 | SETn(-SvNV_nomg(sv)); |
79072805 | 2519 | } |
245d035e | 2520 | return NORMAL; |
79072805 LW |
2521 | } |
2522 | ||
a0d0e21e | 2523 | PP(pp_not) |
79072805 | 2524 | { |
20b7effb | 2525 | dSP; |
f4c975aa DM |
2526 | SV *sv; |
2527 | ||
6f1401dc | 2528 | tryAMAGICun_MG(not_amg, AMGf_set); |
f4c975aa DM |
2529 | sv = *PL_stack_sp; |
2530 | *PL_stack_sp = boolSV(!SvTRUE_nomg_NN(sv)); | |
a0d0e21e | 2531 | return NORMAL; |
79072805 LW |
2532 | } |
2533 | ||
5d01050a FC |
2534 | static void |
2535 | S_scomplement(pTHX_ SV *targ, SV *sv) | |
79072805 | 2536 | { |
eb578fdb KW |
2537 | U8 *tmps; |
2538 | I32 anum; | |
a0d0e21e LW |
2539 | STRLEN len; |
2540 | ||
85b0ee6e FC |
2541 | sv_copypv_nomg(TARG, sv); |
2542 | tmps = (U8*)SvPV_nomg(TARG, len); | |
08b6664b | 2543 | |
1d68d6cd | 2544 | if (SvUTF8(TARG)) { |
08b6664b KW |
2545 | if (len && ! utf8_to_bytes(tmps, &len)) { |
2546 | Perl_croak(aTHX_ fatal_above_ff_msg, PL_op_desc[PL_op->op_type]); | |
2547 | } | |
2548 | SvCUR(TARG) = len; | |
2549 | SvUTF8_off(TARG); | |
2550 | } | |
2551 | ||
2552 | anum = len; | |
1d68d6cd | 2553 | |
a0d0e21e | 2554 | #ifdef LIBERAL |
51723571 | 2555 | { |
eb578fdb | 2556 | long *tmpl; |
51723571 JH |
2557 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) |
2558 | *tmps = ~*tmps; | |
2559 | tmpl = (long*)tmps; | |
bb7a0f54 | 2560 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2561 | *tmpl = ~*tmpl; |
2562 | tmps = (U8*)tmpl; | |
2563 | } | |
a0d0e21e LW |
2564 | #endif |
2565 | for ( ; anum > 0; anum--, tmps++) | |
2566 | *tmps = ~*tmps; | |
5d01050a FC |
2567 | } |
2568 | ||
2569 | PP(pp_complement) | |
2570 | { | |
2571 | dSP; dTARGET; | |
2572 | tryAMAGICun_MG(compl_amg, AMGf_numeric); | |
2573 | { | |
2574 | dTOPss; | |
2575 | if (SvNIOKp(sv)) { | |
2576 | if (PL_op->op_private & HINT_INTEGER) { | |
2577 | const IV i = ~SvIV_nomg(sv); | |
2578 | SETi(i); | |
2579 | } | |
2580 | else { | |
2581 | const UV u = ~SvUV_nomg(sv); | |
2582 | SETu(u); | |
2583 | } | |
2584 | } | |
2585 | else { | |
2586 | S_scomplement(aTHX_ TARG, sv); | |
ec93b65f | 2587 | SETTARG; |
a0d0e21e | 2588 | } |
24840750 | 2589 | return NORMAL; |
5d01050a FC |
2590 | } |
2591 | } | |
2592 | ||
2593 | PP(pp_ncomplement) | |
2594 | { | |
2595 | dSP; | |
636ac8fc | 2596 | tryAMAGICun_MG(compl_amg, AMGf_numeric|AMGf_numarg); |
5d01050a FC |
2597 | { |
2598 | dTARGET; dTOPss; | |
2599 | if (PL_op->op_private & HINT_INTEGER) { | |
2600 | const IV i = ~SvIV_nomg(sv); | |
2601 | SETi(i); | |
2602 | } | |
2603 | else { | |
2604 | const UV u = ~SvUV_nomg(sv); | |
2605 | SETu(u); | |
2606 | } | |
2607 | } | |
2608 | return NORMAL; | |
2609 | } | |
2610 | ||
2611 | PP(pp_scomplement) | |
2612 | { | |
2613 | dSP; | |
2614 | tryAMAGICun_MG(scompl_amg, AMGf_numeric); | |
2615 | { | |
2616 | dTARGET; dTOPss; | |
2617 | S_scomplement(aTHX_ TARG, sv); | |
2618 | SETTARG; | |
2619 | return NORMAL; | |
a0d0e21e | 2620 | } |
79072805 LW |
2621 | } |
2622 | ||
a0d0e21e LW |
2623 | /* integer versions of some of the above */ |
2624 | ||
a0d0e21e | 2625 | PP(pp_i_multiply) |
79072805 | 2626 | { |
20b7effb | 2627 | dSP; dATARGET; |
6f1401dc | 2628 | tryAMAGICbin_MG(mult_amg, AMGf_assign); |
a0d0e21e | 2629 | { |
6f1401dc | 2630 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2631 | SETi( left * right ); |
2632 | RETURN; | |
2633 | } | |
79072805 LW |
2634 | } |
2635 | ||
a0d0e21e | 2636 | PP(pp_i_divide) |
79072805 | 2637 | { |
85935d8e | 2638 | IV num; |
20b7effb | 2639 | dSP; dATARGET; |
6f1401dc | 2640 | tryAMAGICbin_MG(div_amg, AMGf_assign); |
a0d0e21e | 2641 | { |
6f1401dc | 2642 | dPOPTOPssrl; |
85935d8e | 2643 | IV value = SvIV_nomg(right); |
a0d0e21e | 2644 | if (value == 0) |
ece1bcef | 2645 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2646 | num = SvIV_nomg(left); |
a0cec769 YST |
2647 | |
2648 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2649 | if (value == -1) | |
2650 | value = - num; | |
2651 | else | |
2652 | value = num / value; | |
6f1401dc | 2653 | SETi(value); |
a0d0e21e LW |
2654 | RETURN; |
2655 | } | |
79072805 LW |
2656 | } |
2657 | ||
befad5d1 | 2658 | PP(pp_i_modulo) |
224ec323 JH |
2659 | { |
2660 | /* This is the vanilla old i_modulo. */ | |
20b7effb | 2661 | dSP; dATARGET; |
6f1401dc | 2662 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2663 | { |
6f1401dc | 2664 | dPOPTOPiirl_nomg; |
224ec323 JH |
2665 | if (!right) |
2666 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2667 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2668 | if (right == -1) | |
2669 | SETi( 0 ); | |
2670 | else | |
2671 | SETi( left % right ); | |
224ec323 JH |
2672 | RETURN; |
2673 | } | |
2674 | } | |
2675 | ||
0927ade0 | 2676 | #if defined(__GLIBC__) && IVSIZE == 8 \ |
bf3d06aa | 2677 | && ( __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 8)) |
befad5d1 | 2678 | |
0927ade0 | 2679 | PP(pp_i_modulo_glibc_bugfix) |
224ec323 | 2680 | { |
224ec323 | 2681 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2682 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2683 | * See below for pp_i_modulo. */ |
20b7effb | 2684 | dSP; dATARGET; |
6f1401dc | 2685 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2686 | { |
6f1401dc | 2687 | dPOPTOPiirl_nomg; |
224ec323 JH |
2688 | if (!right) |
2689 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2690 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2691 | if (right == -1) | |
2692 | SETi( 0 ); | |
2693 | else | |
2694 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2695 | RETURN; |
2696 | } | |
224ec323 | 2697 | } |
befad5d1 | 2698 | #endif |
79072805 | 2699 | |
a0d0e21e | 2700 | PP(pp_i_add) |
79072805 | 2701 | { |
20b7effb | 2702 | dSP; dATARGET; |
6f1401dc | 2703 | tryAMAGICbin_MG(add_amg, AMGf_assign); |
a0d0e21e | 2704 | { |
6f1401dc | 2705 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2706 | SETi( left + right ); |
2707 | RETURN; | |
79072805 | 2708 | } |
79072805 LW |
2709 | } |
2710 | ||
a0d0e21e | 2711 | PP(pp_i_subtract) |
79072805 | 2712 | { |
20b7effb | 2713 | dSP; dATARGET; |
6f1401dc | 2714 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); |
a0d0e21e | 2715 | { |
6f1401dc | 2716 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2717 | SETi( left - right ); |
2718 | RETURN; | |
79072805 | 2719 | } |
79072805 LW |
2720 | } |
2721 | ||
a0d0e21e | 2722 | PP(pp_i_lt) |
79072805 | 2723 | { |
20b7effb | 2724 | dSP; |
6f1401dc | 2725 | tryAMAGICbin_MG(lt_amg, AMGf_set); |
a0d0e21e | 2726 | { |
96b6b87f | 2727 | dPOPTOPiirl_nomg; |
54310121 | 2728 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2729 | RETURN; |
2730 | } | |
79072805 LW |
2731 | } |
2732 | ||
a0d0e21e | 2733 | PP(pp_i_gt) |
79072805 | 2734 | { |
20b7effb | 2735 | dSP; |
6f1401dc | 2736 | tryAMAGICbin_MG(gt_amg, AMGf_set); |
a0d0e21e | 2737 | { |
96b6b87f | 2738 | dPOPTOPiirl_nomg; |
54310121 | 2739 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2740 | RETURN; |
2741 | } | |
79072805 LW |
2742 | } |
2743 | ||
a0d0e21e | 2744 | PP(pp_i_le) |
79072805 | 2745 | { |
20b7effb | 2746 | dSP; |
6f1401dc | 2747 | tryAMAGICbin_MG(le_amg, AMGf_set); |
a0d0e21e | 2748 | { |
96b6b87f | 2749 | dPOPTOPiirl_nomg; |
54310121 | 2750 | SETs(boolSV(left <= right)); |
a0d0e21e | 2751 | RETURN; |
85e6fe83 | 2752 | } |
79072805 LW |
2753 | } |
2754 | ||
a0d0e21e | 2755 | PP(pp_i_ge) |
79072805 | 2756 | { |
20b7effb | 2757 | dSP; |
6f1401dc | 2758 | tryAMAGICbin_MG(ge_amg, AMGf_set); |
a0d0e21e | 2759 | { |
96b6b87f | 2760 | dPOPTOPiirl_nomg; |
54310121 | 2761 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2762 | RETURN; |
2763 | } | |
79072805 LW |
2764 | } |
2765 | ||
a0d0e21e | 2766 | PP(pp_i_eq) |
79072805 | 2767 | { |
20b7effb | 2768 | dSP; |
6f1401dc | 2769 | tryAMAGICbin_MG(eq_amg, AMGf_set); |
a0d0e21e | 2770 | { |
96b6b87f | 2771 | dPOPTOPiirl_nomg; |
54310121 | 2772 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2773 | RETURN; |
2774 | } | |
79072805 LW |
2775 | } |
2776 | ||
a0d0e21e | 2777 | PP(pp_i_ne) |
79072805 | 2778 | { |
20b7effb | 2779 | dSP; |
6f1401dc | 2780 | tryAMAGICbin_MG(ne_amg, AMGf_set); |
a0d0e21e | 2781 | { |
96b6b87f | 2782 | dPOPTOPiirl_nomg; |
54310121 | 2783 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2784 | RETURN; |
2785 | } | |
79072805 LW |
2786 | } |
2787 | ||
a0d0e21e | 2788 | PP(pp_i_ncmp) |
79072805 | 2789 | { |
20b7effb | 2790 | dSP; dTARGET; |
6f1401dc | 2791 | tryAMAGICbin_MG(ncmp_amg, 0); |
a0d0e21e | 2792 | { |
96b6b87f | 2793 | dPOPTOPiirl_nomg; |
a0d0e21e | 2794 | I32 value; |
79072805 | 2795 | |
a0d0e21e | 2796 | if (left > right) |
79072805 | 2797 | value = 1; |
a0d0e21e | 2798 | else if (left < right) |
79072805 | 2799 | value = -1; |
a0d0e21e | 2800 | else |
79072805 | 2801 | value = 0; |
a0d0e21e LW |
2802 | SETi(value); |
2803 | RETURN; | |
79072805 | 2804 | } |
85e6fe83 LW |
2805 | } |
2806 | ||
2807 | PP(pp_i_negate) | |
2808 | { | |
20b7effb | 2809 | dSP; dTARGET; |
6f1401dc | 2810 | tryAMAGICun_MG(neg_amg, 0); |
1c2b3fd6 | 2811 | if (S_negate_string(aTHX)) return NORMAL; |
6f1401dc DM |
2812 | { |
2813 | SV * const sv = TOPs; | |
2814 | IV const i = SvIV_nomg(sv); | |
2815 | SETi(-i); | |
ae642386 | 2816 | return NORMAL; |
6f1401dc | 2817 | } |
85e6fe83 LW |
2818 | } |
2819 | ||
79072805 LW |
2820 | /* High falutin' math. */ |
2821 | ||
2822 | PP(pp_atan2) | |
2823 | { | |
20b7effb | 2824 | dSP; dTARGET; |
6f1401dc | 2825 | tryAMAGICbin_MG(atan2_amg, 0); |
a0d0e21e | 2826 | { |
096c060c | 2827 | dPOPTOPnnrl_nomg; |
a1021d57 | 2828 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2829 | RETURN; |
2830 | } | |
79072805 LW |
2831 | } |
2832 | ||
b1c05ba5 DM |
2833 | |
2834 | /* also used for: pp_cos() pp_exp() pp_log() pp_sqrt() */ | |
2835 | ||
79072805 LW |
2836 | PP(pp_sin) |
2837 | { | |
20b7effb | 2838 | dSP; dTARGET; |
af71714e | 2839 | int amg_type = fallback_amg; |
71302fe3 | 2840 | const char *neg_report = NULL; |
71302fe3 NC |
2841 | const int op_type = PL_op->op_type; |
2842 | ||
2843 | switch (op_type) { | |
af71714e JH |
2844 | case OP_SIN: amg_type = sin_amg; break; |
2845 | case OP_COS: amg_type = cos_amg; break; | |
2846 | case OP_EXP: amg_type = exp_amg; break; | |
2847 | case OP_LOG: amg_type = log_amg; neg_report = "log"; break; | |
2848 | case OP_SQRT: amg_type = sqrt_amg; neg_report = "sqrt"; break; | |
a0d0e21e | 2849 | } |
79072805 | 2850 | |
af71714e | 2851 | assert(amg_type != fallback_amg); |
6f1401dc DM |
2852 | |
2853 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2854 | { |
8c78ed36 | 2855 | SV * const arg = TOPs; |
6f1401dc | 2856 | const NV value = SvNV_nomg(arg); |
a5dc2484 | 2857 | #ifdef NV_NAN |
f256868e | 2858 | NV result = NV_NAN; |
a5dc2484 JH |
2859 | #else |
2860 | NV result = 0.0; | |
2861 | #endif | |
af71714e | 2862 | if (neg_report) { /* log or sqrt */ |
a3463d96 DD |
2863 | if ( |
2864 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
2865 | ! Perl_isnan(value) && | |
2866 | #endif | |
2867 | (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0))) { | |
71302fe3 | 2868 | SET_NUMERIC_STANDARD(); |
dcbac5bb | 2869 | /* diag_listed_as: Can't take log of %g */ |
147e3846 | 2870 | DIE(aTHX_ "Can't take %s of %" NVgf, neg_report, value); |
71302fe3 NC |
2871 | } |
2872 | } | |
af71714e | 2873 | switch (op_type) { |
f256868e | 2874 | default: |
af71714e JH |
2875 | case OP_SIN: result = Perl_sin(value); break; |
2876 | case OP_COS: result = Perl_cos(value); break; | |
2877 | case OP_EXP: result = Perl_exp(value); break; | |
2878 | case OP_LOG: result = Perl_log(value); break; | |
2879 | case OP_SQRT: result = Perl_sqrt(value); break; | |
2880 | } | |
8c78ed36 FC |
2881 | SETn(result); |
2882 | return NORMAL; | |
a0d0e21e | 2883 | } |
79072805 LW |
2884 | } |
2885 | ||
56cb0a1c AD |
2886 | /* Support Configure command-line overrides for rand() functions. |
2887 | After 5.005, perhaps we should replace this by Configure support | |
2888 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2889 | compatibility by calling rand() but allow the user to override it. | |
2890 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2891 | */ | |
85ab1d1d JH |
2892 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2893 | in addition to rand(). So the overrides should not be needed any more. | |
2894 | --Jarkko Hietaniemi 27 September 1998 | |
2895 | */ | |
2896 | ||
79072805 LW |
2897 | PP(pp_rand) |
2898 | { | |
80252599 | 2899 | if (!PL_srand_called) { |
85ab1d1d | 2900 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2901 | PL_srand_called = TRUE; |
93dc8474 | 2902 | } |
fdf4dddd DD |
2903 | { |
2904 | dSP; | |
2905 | NV value; | |
fdf4dddd DD |
2906 | |
2907 | if (MAXARG < 1) | |
7e9044f9 FC |
2908 | { |
2909 | EXTEND(SP, 1); | |
fdf4dddd | 2910 | value = 1.0; |
7e9044f9 | 2911 | } |
fdf4dddd DD |
2912 | else { |
2913 | SV * const sv = POPs; | |
2914 | if(!sv) | |
2915 | value = 1.0; | |
2916 | else | |
2917 | value = SvNV(sv); | |
2918 | } | |
2919 | /* 1 of 2 things can be carried through SvNV, SP or TARG, SP was carried */ | |
a3463d96 DD |
2920 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
2921 | if (! Perl_isnan(value) && value == 0.0) | |
2922 | #else | |
659c4b96 | 2923 | if (value == 0.0) |
a3463d96 | 2924 | #endif |
fdf4dddd DD |
2925 | value = 1.0; |
2926 | { | |
2927 | dTARGET; | |
2928 | PUSHs(TARG); | |
2929 | PUTBACK; | |
2930 | value *= Drand01(); | |
2931 | sv_setnv_mg(TARG, value); | |
2932 | } | |
2933 | } | |
2934 | return NORMAL; | |
79072805 LW |
2935 | } |
2936 | ||
2937 | PP(pp_srand) | |
2938 | { | |
20b7effb | 2939 | dSP; dTARGET; |
f914a682 JL |
2940 | UV anum; |
2941 | ||
0a5f3363 | 2942 | if (MAXARG >= 1 && (TOPs || POPs)) { |
f914a682 JL |
2943 | SV *top; |
2944 | char *pv; | |
2945 | STRLEN len; | |
2946 | int flags; | |
2947 | ||
2948 | top = POPs; | |
2949 | pv = SvPV(top, len); | |
2950 | flags = grok_number(pv, len, &anum); | |
2951 | ||
2952 | if (!(flags & IS_NUMBER_IN_UV)) { | |
2953 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
2954 | "Integer overflow in srand"); | |
2955 | anum = UV_MAX; | |
2956 | } | |
2957 | } | |
2958 | else { | |
2959 | anum = seed(); | |
2960 | } | |
2961 | ||
85ab1d1d | 2962 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2963 | PL_srand_called = TRUE; |
da1010ec NC |
2964 | if (anum) |
2965 | XPUSHu(anum); | |
2966 | else { | |
2967 | /* Historically srand always returned true. We can avoid breaking | |
2968 | that like this: */ | |
2969 | sv_setpvs(TARG, "0 but true"); | |
2970 | XPUSHTARG; | |
2971 | } | |
83832992 | 2972 | RETURN; |
79072805 LW |
2973 | } |
2974 | ||
79072805 LW |
2975 | PP(pp_int) |
2976 | { | |
20b7effb | 2977 | dSP; dTARGET; |
6f1401dc | 2978 | tryAMAGICun_MG(int_amg, AMGf_numeric); |
774d564b | 2979 | { |
6f1401dc DM |
2980 | SV * const sv = TOPs; |
2981 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2982 | /* XXX it's arguable that compiler casting to IV might be subtly |
2983 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2984 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2985 | relying on floating point to be accurate is a bug. */ | |
2986 | ||
c781a409 | 2987 | if (!SvOK(sv)) { |
922c4365 | 2988 | SETu(0); |
c781a409 RD |
2989 | } |
2990 | else if (SvIOK(sv)) { | |
2991 | if (SvIsUV(sv)) | |
6f1401dc | 2992 | SETu(SvUV_nomg(sv)); |
c781a409 | 2993 | else |
28e5dec8 | 2994 | SETi(iv); |
c781a409 | 2995 | } |
c781a409 | 2996 | else { |
6f1401dc | 2997 | const NV value = SvNV_nomg(sv); |
b9d05018 FC |
2998 | if (UNLIKELY(Perl_isinfnan(value))) |
2999 | SETn(value); | |
5bf8b78e | 3000 | else if (value >= 0.0) { |
28e5dec8 JH |
3001 | if (value < (NV)UV_MAX + 0.5) { |
3002 | SETu(U_V(value)); | |
3003 | } else { | |
059a1014 | 3004 | SETn(Perl_floor(value)); |
28e5dec8 | 3005 | } |
1048ea30 | 3006 | } |
28e5dec8 JH |
3007 | else { |
3008 | if (value > (NV)IV_MIN - 0.5) { | |
3009 | SETi(I_V(value)); | |
3010 | } else { | |
1bbae031 | 3011 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
3012 | } |
3013 | } | |
774d564b | 3014 | } |
79072805 | 3015 | } |
699e9491 | 3016 | return NORMAL; |
79072805 LW |
3017 | } |
3018 | ||
463ee0b2 LW |
3019 | PP(pp_abs) |
3020 | { | |
20b7effb | 3021 | dSP; dTARGET; |
6f1401dc | 3022 | tryAMAGICun_MG(abs_amg, AMGf_numeric); |
a0d0e21e | 3023 | { |
6f1401dc | 3024 | SV * const sv = TOPs; |
28e5dec8 | 3025 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 3026 | const IV iv = SvIV_nomg(sv); |
a227d84d | 3027 | |
800401ee | 3028 | if (!SvOK(sv)) { |
922c4365 | 3029 | SETu(0); |
800401ee JH |
3030 | } |
3031 | else if (SvIOK(sv)) { | |
28e5dec8 | 3032 | /* IVX is precise */ |
800401ee | 3033 | if (SvIsUV(sv)) { |
6f1401dc | 3034 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
3035 | } else { |
3036 | if (iv >= 0) { | |
3037 | SETi(iv); | |
3038 | } else { | |
3039 | if (iv != IV_MIN) { | |
3040 | SETi(-iv); | |
3041 | } else { | |
3042 | /* 2s complement assumption. Also, not really needed as | |
3043 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
b396d0d8 | 3044 | SETu((UV)IV_MIN); |
28e5dec8 | 3045 | } |
a227d84d | 3046 | } |
28e5dec8 JH |
3047 | } |
3048 | } else{ | |
6f1401dc | 3049 | const NV value = SvNV_nomg(sv); |
774d564b | 3050 | if (value < 0.0) |
1b6737cc | 3051 | SETn(-value); |
a4474c9e DD |
3052 | else |
3053 | SETn(value); | |
774d564b | 3054 | } |
a0d0e21e | 3055 | } |
067b7929 | 3056 | return NORMAL; |
463ee0b2 LW |
3057 | } |
3058 | ||
b1c05ba5 DM |
3059 | |
3060 | /* also used for: pp_hex() */ | |
3061 | ||
79072805 LW |
3062 | PP(pp_oct) |
3063 | { | |
20b7effb | 3064 | dSP; dTARGET; |
5c144d81 | 3065 | const char *tmps; |
53305cf1 | 3066 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 3067 | STRLEN len; |
53305cf1 NC |
3068 | NV result_nv; |
3069 | UV result_uv; | |
4e51bcca | 3070 | SV* const sv = TOPs; |
79072805 | 3071 | |
349d4f2f | 3072 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
3073 | if (DO_UTF8(sv)) { |
3074 | /* If Unicode, try to downgrade | |
3075 | * If not possible, croak. */ | |
1b6737cc | 3076 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
3077 | |
3078 | SvUTF8_on(tsv); | |
3079 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 3080 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 3081 | } |
daa2adfd NC |
3082 | if (PL_op->op_type == OP_HEX) |
3083 | goto hex; | |
3084 | ||
6f894ead | 3085 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 3086 | tmps++, len--; |
9e24b6e2 | 3087 | if (*tmps == '0') |
53305cf1 | 3088 | tmps++, len--; |
305b8651 | 3089 | if (isALPHA_FOLD_EQ(*tmps, 'x')) { |
daa2adfd | 3090 | hex: |
53305cf1 | 3091 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 3092 | } |
305b8651 | 3093 | else if (isALPHA_FOLD_EQ(*tmps, 'b')) |
53305cf1 | 3094 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 3095 | else |
53305cf1 NC |
3096 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
3097 | ||
3098 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
4e51bcca | 3099 | SETn(result_nv); |
53305cf1 NC |
3100 | } |
3101 | else { | |
4e51bcca | 3102 | SETu(result_uv); |
53305cf1 | 3103 | } |
4e51bcca | 3104 | return NORMAL; |
79072805 LW |
3105 | } |
3106 | ||
3107 | /* String stuff. */ | |
3108 | ||
5febd2ff | 3109 | |
79072805 LW |
3110 | PP(pp_length) |
3111 | { | |
20b7effb | 3112 | dSP; dTARGET; |
0bd48802 | 3113 | SV * const sv = TOPs; |
a0ed51b3 | 3114 | |
7776003e | 3115 | U32 in_bytes = IN_BYTES; |
5febd2ff DM |
3116 | /* Simplest case shortcut: |
3117 | * set svflags to just the SVf_POK|SVs_GMG|SVf_UTF8 from the SV, | |
3118 | * with the SVf_UTF8 flag inverted if under 'use bytes' (HINT_BYTES | |
3119 | * set) | |
3120 | */ | |
7776003e | 3121 | U32 svflags = (SvFLAGS(sv) ^ (in_bytes << 26)) & (SVf_POK|SVs_GMG|SVf_UTF8); |
5febd2ff DM |
3122 | |
3123 | STATIC_ASSERT_STMT(SVf_UTF8 == (HINT_BYTES << 26)); | |
7776003e DD |
3124 | SETs(TARG); |
3125 | ||
5febd2ff | 3126 | if (LIKELY(svflags == SVf_POK)) |
7776003e | 3127 | goto simple_pv; |
5febd2ff DM |
3128 | |
3129 | if (svflags & SVs_GMG) | |
7776003e | 3130 | mg_get(sv); |
5febd2ff | 3131 | |
0f43fd57 | 3132 | if (SvOK(sv)) { |
5b750817 | 3133 | STRLEN len; |
f446eca7 DM |
3134 | if (!IN_BYTES) { /* reread to avoid using an C auto/register */ |
3135 | if ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == SVf_POK) | |
3136 | goto simple_pv; | |
7b394f12 DM |
3137 | if ( SvPOK(sv) && (PL_op->op_private & OPpTRUEBOOL)) { |
3138 | /* no need to convert from bytes to chars */ | |
3139 | len = SvCUR(sv); | |
3140 | goto return_bool; | |
3141 | } | |
5b750817 | 3142 | len = sv_len_utf8_nomg(sv); |
f446eca7 | 3143 | } |
5febd2ff | 3144 | else { |
7776003e | 3145 | /* unrolled SvPV_nomg_const(sv,len) */ |
5febd2ff DM |
3146 | if (SvPOK_nog(sv)) { |
3147 | simple_pv: | |
7776003e | 3148 | len = SvCUR(sv); |
7b394f12 DM |
3149 | if (PL_op->op_private & OPpTRUEBOOL) { |
3150 | return_bool: | |
3151 | SETs(len ? &PL_sv_yes : &PL_sv_zero); | |
3152 | return NORMAL; | |
3153 | } | |
5febd2ff DM |
3154 | } |
3155 | else { | |
7776003e DD |
3156 | (void)sv_2pv_flags(sv, &len, 0|SV_CONST_RETURN); |
3157 | } | |
0f43fd57 | 3158 | } |
5b750817 | 3159 | TARGi((IV)(len), 1); |
5febd2ff DM |
3160 | } |
3161 | else { | |
9407f9c1 | 3162 | if (!SvPADTMP(TARG)) { |
5febd2ff | 3163 | /* OPpTARGET_MY: targ is var in '$lex = length()' */ |
e03e82a0 | 3164 | sv_set_undef(TARG); |
5b750817 | 3165 | SvSETMAGIC(TARG); |
5febd2ff DM |
3166 | } |
3167 | else | |
3168 | /* TARG is on stack at this point and is overwriten by SETs. | |
3169 | * This branch is the odd one out, so put TARG by default on | |
3170 | * stack earlier to let local SP go out of liveness sooner */ | |
7776003e | 3171 | SETs(&PL_sv_undef); |
92331800 | 3172 | } |
7776003e | 3173 | return NORMAL; /* no putback, SP didn't move in this opcode */ |
79072805 LW |
3174 | } |
3175 | ||
5febd2ff | 3176 | |
83f78d1a FC |
3177 | /* Returns false if substring is completely outside original string. |
3178 | No length is indicated by len_iv = 0 and len_is_uv = 0. len_is_uv must | |
3179 | always be true for an explicit 0. | |
3180 | */ | |
3181 | bool | |
ddeaf645 DD |
3182 | Perl_translate_substr_offsets( STRLEN curlen, IV pos1_iv, |
3183 | bool pos1_is_uv, IV len_iv, | |
3184 | bool len_is_uv, STRLEN *posp, | |
3185 | STRLEN *lenp) | |
83f78d1a FC |
3186 | { |
3187 | IV pos2_iv; | |
3188 | int pos2_is_uv; | |
3189 | ||
3190 | PERL_ARGS_ASSERT_TRANSLATE_SUBSTR_OFFSETS; | |
3191 | ||
3192 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { | |
3193 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
3194 | pos1_iv += curlen; | |
3195 | } | |
3196 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) | |
3197 | return FALSE; | |
3198 | ||
3199 | if (len_iv || len_is_uv) { | |
3200 | if (!len_is_uv && len_iv < 0) { | |
3201 | pos2_iv = curlen + len_iv; | |
3202 | if (curlen) | |
3203 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
3204 | else | |
3205 | pos2_is_uv = 0; | |
3206 | } else { /* len_iv >= 0 */ | |
3207 | if (!pos1_is_uv && pos1_iv < 0) { | |
3208 | pos2_iv = pos1_iv + len_iv; | |
3209 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
3210 | } else { | |
3211 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
3212 | pos2_iv = curlen; | |
3213 | else | |
3214 | pos2_iv = pos1_iv+len_iv; | |
3215 | pos2_is_uv = 1; | |
3216 | } | |
3217 | } | |
3218 | } | |
3219 | else { | |
3220 | pos2_iv = curlen; | |
3221 | pos2_is_uv = 1; | |
3222 | } | |
3223 | ||
3224 | if (!pos2_is_uv && pos2_iv < 0) { | |
3225 | if (!pos1_is_uv && pos1_iv < 0) | |
3226 | return FALSE; | |
3227 | pos2_iv = 0; | |
3228 | } | |
3229 | else if (!pos1_is_uv && pos1_iv < 0) | |
3230 | pos1_iv = 0; | |
3231 | ||
3232 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3233 | pos2_iv = pos1_iv; | |
3234 | if ((UV)pos2_iv > curlen) | |
3235 | pos2_iv = curlen; | |
3236 | ||
3237 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3238 | *posp = (STRLEN)( (UV)pos1_iv ); | |
3239 | *lenp = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
3240 | ||
3241 | return TRUE; | |
3242 | } | |
3243 | ||
79072805 LW |
3244 | PP(pp_substr) |
3245 | { | |
20b7effb | 3246 | dSP; dTARGET; |
79072805 | 3247 | SV *sv; |
463ee0b2 | 3248 | STRLEN curlen; |
9402d6ed | 3249 | STRLEN utf8_curlen; |
777f7c56 EB |
3250 | SV * pos_sv; |
3251 | IV pos1_iv; | |
3252 | int pos1_is_uv; | |
777f7c56 EB |
3253 | SV * len_sv; |
3254 | IV len_iv = 0; | |
83f78d1a | 3255 | int len_is_uv = 0; |
24fcb59f | 3256 | I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 3257 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 3258 | const char *tmps; |
9402d6ed | 3259 | SV *repl_sv = NULL; |
cbbf8932 | 3260 | const char *repl = NULL; |
7b8d334a | 3261 | STRLEN repl_len; |
7bc95ae1 | 3262 | int num_args = PL_op->op_private & 7; |
13e30c65 | 3263 | bool repl_need_utf8_upgrade = FALSE; |
79072805 | 3264 | |
78f9721b SM |
3265 | if (num_args > 2) { |
3266 | if (num_args > 3) { | |
24fcb59f | 3267 | if(!(repl_sv = POPs)) num_args--; |
7bc95ae1 FC |
3268 | } |
3269 | if ((len_sv = POPs)) { | |
3270 | len_iv = SvIV(len_sv); | |
83f78d1a | 3271 | len_is_uv = len_iv ? SvIOK_UV(len_sv) : 1; |
7b8d334a | 3272 | } |
7bc95ae1 | 3273 | else num_args--; |
5d82c453 | 3274 | } |
777f7c56 EB |
3275 | pos_sv = POPs; |
3276 | pos1_iv = SvIV(pos_sv); | |
3277 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3278 | sv = POPs; |
24fcb59f FC |
3279 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) { |
3280 | assert(!repl_sv); | |
3281 | repl_sv = POPs; | |
3282 | } | |
6582db62 | 3283 | if (lvalue && !repl_sv) { |
83f78d1a FC |
3284 | SV * ret; |
3285 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3286 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3287 | LvTYPE(ret) = 'x'; | |
3288 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3289 | LvTARGOFF(ret) = | |
3290 | pos1_is_uv || pos1_iv >= 0 | |
3291 | ? (STRLEN)(UV)pos1_iv | |
b063b0a8 | 3292 | : (LvFLAGS(ret) |= LVf_NEG_OFF, (STRLEN)(UV)-pos1_iv); |
83f78d1a FC |
3293 | LvTARGLEN(ret) = |
3294 | len_is_uv || len_iv > 0 | |
3295 | ? (STRLEN)(UV)len_iv | |
b063b0a8 | 3296 | : (LvFLAGS(ret) |= LVf_NEG_LEN, (STRLEN)(UV)-len_iv); |
83f78d1a | 3297 | |
83f78d1a FC |
3298 | PUSHs(ret); /* avoid SvSETMAGIC here */ |
3299 | RETURN; | |
a74fb2cd | 3300 | } |
6582db62 FC |
3301 | if (repl_sv) { |
3302 | repl = SvPV_const(repl_sv, repl_len); | |
3303 | SvGETMAGIC(sv); | |
3304 | if (SvROK(sv)) | |
3305 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3306 | "Attempt to use reference as lvalue in substr" | |
3307 | ); | |
3308 | tmps = SvPV_force_nomg(sv, curlen); | |
3309 | if (DO_UTF8(repl_sv) && repl_len) { | |
3310 | if (!DO_UTF8(sv)) { | |
41b1e858 AC |
3311 | /* Upgrade the dest, and recalculate tmps in case the buffer |
3312 | * got reallocated; curlen may also have been changed */ | |
01680ee9 | 3313 | sv_utf8_upgrade_nomg(sv); |
41b1e858 | 3314 | tmps = SvPV_nomg(sv, curlen); |
6582db62 FC |
3315 | } |
3316 | } | |
3317 | else if (DO_UTF8(sv)) | |
3318 | repl_need_utf8_upgrade = TRUE; | |
3319 | } | |
3320 | else tmps = SvPV_const(sv, curlen); | |
7e2040f0 | 3321 | if (DO_UTF8(sv)) { |
0d788f38 | 3322 | utf8_curlen = sv_or_pv_len_utf8(sv, tmps, curlen); |
9402d6ed JH |
3323 | if (utf8_curlen == curlen) |
3324 | utf8_curlen = 0; | |
a0ed51b3 | 3325 | else |
9402d6ed | 3326 | curlen = utf8_curlen; |
a0ed51b3 | 3327 | } |
d1c2b58a | 3328 | else |
9402d6ed | 3329 | utf8_curlen = 0; |
a0ed51b3 | 3330 | |
83f78d1a FC |
3331 | { |
3332 | STRLEN pos, len, byte_len, byte_pos; | |
777f7c56 | 3333 | |
83f78d1a FC |
3334 | if (!translate_substr_offsets( |
3335 | curlen, pos1_iv, pos1_is_uv, len_iv, len_is_uv, &pos, &len | |
3336 | )) goto bound_fail; | |
777f7c56 | 3337 | |
83f78d1a FC |
3338 | byte_len = len; |
3339 | byte_pos = utf8_curlen | |
0d788f38 | 3340 | ? sv_or_pv_pos_u2b(sv, tmps, pos, &byte_len) : pos; |
d931b1be | 3341 | |
2154eca7 | 3342 | tmps += byte_pos; |
bbddc9e0 CS |
3343 | |
3344 | if (rvalue) { | |
3345 | SvTAINTED_off(TARG); /* decontaminate */ | |
3346 | SvUTF8_off(TARG); /* decontaminate */ | |
3347 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3348 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3349 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3350 | #endif |
bbddc9e0 CS |
3351 | if (utf8_curlen) |
3352 | SvUTF8_on(TARG); | |
3353 | } | |
2154eca7 | 3354 | |
f7928d6c | 3355 | if (repl) { |
13e30c65 JH |
3356 | SV* repl_sv_copy = NULL; |
3357 | ||
3358 | if (repl_need_utf8_upgrade) { | |
3359 | repl_sv_copy = newSVsv(repl_sv); | |
3360 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3361 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 | 3362 | } |
502d9230 | 3363 | if (!SvOK(sv)) |
500f3e18 | 3364 | SvPVCLEAR(sv); |
777f7c56 | 3365 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
ef8d46e8 | 3366 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3367 | } |
79072805 | 3368 | } |
6a9665b0 FC |
3369 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) |
3370 | SP++; | |
3371 | else if (rvalue) { | |
bbddc9e0 CS |
3372 | SvSETMAGIC(TARG); |
3373 | PUSHs(TARG); | |
3374 | } | |
79072805 | 3375 | RETURN; |
777f7c56 | 3376 | |
7b52d656 | 3377 | bound_fail: |
83f78d1a | 3378 | if (repl) |
777f7c56 EB |
3379 | Perl_croak(aTHX_ "substr outside of string"); |
3380 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3381 | RETPUSHUNDEF; | |
79072805 LW |
3382 | } |
3383 | ||
3384 | PP(pp_vec) | |
3385 | { | |
20b7effb | 3386 | dSP; |
eb578fdb | 3387 | const IV size = POPi; |
d69c4304 | 3388 | SV* offsetsv = POPs; |
eb578fdb | 3389 | SV * const src = POPs; |
1b6737cc | 3390 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2154eca7 | 3391 | SV * ret; |
1b92e694 DM |
3392 | UV retuv; |
3393 | STRLEN offset = 0; | |
3394 | char errflags = 0; | |
d69c4304 DM |
3395 | |
3396 | /* extract a STRLEN-ranged integer value from offsetsv into offset, | |
1b92e694 | 3397 | * or flag that its out of range */ |
d69c4304 DM |
3398 | { |
3399 | IV iv = SvIV(offsetsv); | |
3400 | ||
3401 | /* avoid a large UV being wrapped to a negative value */ | |
1b92e694 | 3402 | if (SvIOK_UV(offsetsv) && SvUVX(offsetsv) > (UV)IV_MAX) |
b063b0a8 | 3403 | errflags = LVf_OUT_OF_RANGE; |
1b92e694 | 3404 | else if (iv < 0) |
b063b0a8 | 3405 | errflags = (LVf_NEG_OFF|LVf_OUT_OF_RANGE); |
d69c4304 | 3406 | #if PTRSIZE < IVSIZE |
1b92e694 | 3407 | else if (iv > Size_t_MAX) |
b063b0a8 | 3408 | errflags = LVf_OUT_OF_RANGE; |
d69c4304 | 3409 | #endif |
1b92e694 DM |
3410 | else |
3411 | offset = (STRLEN)iv; | |
d69c4304 DM |
3412 | } |
3413 | ||
1b92e694 | 3414 | retuv = errflags ? 0 : do_vecget(src, offset, size); |
a0d0e21e | 3415 | |
81e118e0 | 3416 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3417 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3418 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3419 | LvTYPE(ret) = 'v'; | |
3420 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3421 | LvTARGOFF(ret) = offset; | |
3422 | LvTARGLEN(ret) = size; | |
1b92e694 | 3423 | LvFLAGS(ret) = errflags; |
2154eca7 EB |
3424 | } |
3425 | else { | |
3426 | dTARGET; | |
3427 | SvTAINTED_off(TARG); /* decontaminate */ | |
3428 | ret = TARG; | |
79072805 LW |
3429 | } |
3430 | ||
d69c4304 | 3431 | sv_setuv(ret, retuv); |
f9e95907 FC |
3432 | if (!lvalue) |
3433 | SvSETMAGIC(ret); | |
2154eca7 | 3434 | PUSHs(ret); |
79072805 LW |
3435 | RETURN; |
3436 | } | |
3437 | ||
b1c05ba5 DM |
3438 | |
3439 | /* also used for: pp_rindex() */ | |
3440 | ||
79072805 LW |
3441 | PP(pp_index) |
3442 | { | |
20b7effb | 3443 | dSP; dTARGET; |
79072805 LW |
3444 | SV *big; |
3445 | SV *little; | |
c445ea15 | 3446 | SV *temp = NULL; |
ad66a58c | 3447 | STRLEN biglen; |
2723d216 | 3448 | STRLEN llen = 0; |
b464e2b7 TC |
3449 | SSize_t offset = 0; |
3450 | SSize_t retval; | |
73ee8be2 NC |
3451 | const char *big_p; |
3452 | const char *little_p; | |
2f040f7f NC |
3453 | bool big_utf8; |
3454 | bool little_utf8; | |
2723d216 | 3455 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3456 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3457 | |
e1dccc0d Z |
3458 | if (threeargs) |
3459 | offset = POPi; | |
79072805 LW |
3460 | little = POPs; |
3461 | big = POPs; | |
73ee8be2 NC |
3462 | big_p = SvPV_const(big, biglen); |
3463 | little_p = SvPV_const(little, llen); | |
3464 | ||
e609e586 NC |
3465 | big_utf8 = DO_UTF8(big); |
3466 | little_utf8 = DO_UTF8(little); | |
3467 | if (big_utf8 ^ little_utf8) { | |
3468 | /* One needs to be upgraded. */ | |
8df0e7a2 | 3469 | if (little_utf8) { |
2f040f7f NC |
3470 | /* Well, maybe instead we might be able to downgrade the small |
3471 | string? */ | |
1eced8f8 | 3472 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3473 | &little_utf8); |
3474 | if (little_utf8) { | |
3475 | /* If the large string is ISO-8859-1, and it's not possible to | |
3476 | convert the small string to ISO-8859-1, then there is no | |
3477 | way that it could be found anywhere by index. */ | |
3478 | retval = -1; | |
7e8d786b | 3479 | goto push_result; |
2f040f7f | 3480 | } |
e609e586 | 3481 | |
2f040f7f NC |
3482 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3483 | to ensure it will get free()d */ | |
3484 | little = temp = newSV(0); | |
73ee8be2 NC |
3485 | sv_usepvn(temp, pv, llen); |
3486 | little_p = SvPVX(little); | |
e609e586 | 3487 | } else { |
20e67ba1 | 3488 | temp = newSVpvn(little_p, llen); |
2f040f7f | 3489 | |
8df0e7a2 | 3490 | sv_utf8_upgrade(temp); |
20e67ba1 FC |
3491 | little = temp; |
3492 | little_p = SvPV_const(little, llen); | |
e609e586 NC |
3493 | } |
3494 | } | |
73ee8be2 NC |
3495 | if (SvGAMAGIC(big)) { |
3496 | /* Life just becomes a lot easier if I use a temporary here. | |
3497 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3498 | will trigger magic and overloading again, as will fbm_instr() | |
3499 | */ | |
59cd0e26 NC |
3500 | big = newSVpvn_flags(big_p, biglen, |
3501 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3502 | big_p = SvPVX(big); |
3503 | } | |
e4e44778 | 3504 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3505 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3506 | warn on undef, and we've already triggered a warning with the | |
3507 | SvPV_const some lines above. We can't remove that, as we need to | |
3508 | call some SvPV to trigger overloading early and find out if the | |
3509 | string is UTF-8. | |
8bd97c0c | 3510 | This is all getting too messy. The API isn't quite clean enough, |
73ee8be2 NC |
3511 | because data access has side effects. |
3512 | */ | |
59cd0e26 NC |
3513 | little = newSVpvn_flags(little_p, llen, |
3514 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3515 | little_p = SvPVX(little); |
3516 | } | |
e609e586 | 3517 | |
d3e26383 | 3518 | if (!threeargs) |
2723d216 | 3519 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3520 | else { |
ad66a58c | 3521 | if (big_utf8 && offset > 0) |
b464e2b7 | 3522 | offset = sv_pos_u2b_flags(big, offset, 0, SV_CONST_RETURN); |
73ee8be2 NC |
3523 | if (!is_index) |
3524 | offset += llen; | |
a0ed51b3 | 3525 | } |
79072805 LW |
3526 | if (offset < 0) |
3527 | offset = 0; | |
b464e2b7 | 3528 | else if (offset > (SSize_t)biglen) |
ad66a58c | 3529 | offset = biglen; |
73ee8be2 NC |
3530 | if (!(little_p = is_index |
3531 | ? fbm_instr((unsigned char*)big_p + offset, | |
3532 | (unsigned char*)big_p + biglen, little, 0) | |
3533 | : rninstr(big_p, big_p + offset, | |
3534 | little_p, little_p + llen))) | |
a0ed51b3 | 3535 | retval = -1; |
ad66a58c | 3536 | else { |
73ee8be2 | 3537 | retval = little_p - big_p; |
15c41403 | 3538 | if (retval > 1 && big_utf8) |
b464e2b7 | 3539 | retval = sv_pos_b2u_flags(big, retval, SV_CONST_RETURN); |
ad66a58c | 3540 | } |
ef8d46e8 | 3541 | SvREFCNT_dec(temp); |
7e8d786b DM |
3542 | |
3543 | push_result: | |
3544 | /* OPpTRUEBOOL indicates an '== -1' has been optimised away */ | |
3545 | if (PL_op->op_private & OPpTRUEBOOL) { | |
3546 | PUSHs( ((retval != -1) ^ cBOOL(PL_op->op_private & OPpINDEX_BOOLNEG)) | |
3547 | ? &PL_sv_yes : &PL_sv_no); | |
3548 | if (PL_op->op_private & OPpTARGET_MY) | |
3549 | /* $lex = (index() == -1) */ | |
3550 | sv_setsv(TARG, TOPs); | |
3551 | } | |
3552 | else | |
3553 | PUSHi(retval); | |
79072805 LW |
3554 | RETURN; |
3555 | } | |
3556 | ||
3557 | PP(pp_sprintf) | |
3558 | { | |
20b7effb | 3559 | dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3560 | SvTAINTED_off(TARG); |
79072805 | 3561 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3562 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3563 | SP = ORIGMARK; |
3564 | PUSHTARG; | |
3565 | RETURN; | |
3566 | } | |
3567 | ||
79072805 LW |
3568 | PP(pp_ord) |
3569 | { | |
20b7effb | 3570 | dSP; dTARGET; |
1eced8f8 | 3571 | |
6ba92227 | 3572 | SV *argsv = TOPs; |
ba210ebe | 3573 | STRLEN len; |
349d4f2f | 3574 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3575 | |
6ba92227 | 3576 | SETu(DO_UTF8(argsv) |
aee9b917 | 3577 | ? (len ? utf8n_to_uvchr(s, len, 0, UTF8_ALLOW_ANYUV) : 0) |
f3943cf2 | 3578 | : (UV)(*s)); |
68795e93 | 3579 | |
6ba92227 | 3580 | return NORMAL; |
79072805 LW |
3581 | } |
3582 | ||
463ee0b2 LW |
3583 | PP(pp_chr) |
3584 | { | |
20b7effb | 3585 | dSP; dTARGET; |
463ee0b2 | 3586 | char *tmps; |
8a064bd6 | 3587 | UV value; |
d3261b99 | 3588 | SV *top = TOPs; |
8a064bd6 | 3589 | |
71739502 | 3590 | SvGETMAGIC(top); |
9911fc4e FC |
3591 | if (UNLIKELY(SvAMAGIC(top))) |
3592 | top = sv_2num(top); | |
99f450cc | 3593 | if (UNLIKELY(isinfnansv(top))) |
147e3846 | 3594 | Perl_croak(aTHX_ "Cannot chr %" NVgf, SvNV(top)); |
1cd88304 JH |
3595 | else { |
3596 | if (!IN_BYTES /* under bytes, chr(-1) eq chr(0xff), etc. */ | |
3597 | && ((SvIOKp(top) && !SvIsUV(top) && SvIV_nomg(top) < 0) | |
3598 | || | |
3599 | ((SvNOKp(top) || (SvOK(top) && !SvIsUV(top))) | |
2cc2a5a0 KW |
3600 | && SvNV_nomg(top) < 0.0))) |
3601 | { | |
b3fe8680 FC |
3602 | if (ckWARN(WARN_UTF8)) { |
3603 | if (SvGMAGICAL(top)) { | |
3604 | SV *top2 = sv_newmortal(); | |
3605 | sv_setsv_nomg(top2, top); | |
3606 | top = top2; | |
3607 | } | |
1cd88304 | 3608 | Perl_warner(aTHX_ packWARN(WARN_UTF8), |
147e3846 | 3609 | "Invalid negative number (%" SVf ") in chr", SVfARG(top)); |
1cd88304 JH |
3610 | } |
3611 | value = UNICODE_REPLACEMENT; | |
3612 | } else { | |
3613 | value = SvUV_nomg(top); | |
3614 | } | |
8a064bd6 | 3615 | } |
463ee0b2 | 3616 | |
862a34c6 | 3617 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3618 | |
0064a8a9 | 3619 | if (value > 255 && !IN_BYTES) { |
5f560d8a | 3620 | SvGROW(TARG, (STRLEN)UVCHR_SKIP(value)+1); |
62961d2e | 3621 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3622 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3623 | *tmps = '\0'; |
3624 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3625 | SvUTF8_on(TARG); |
d3261b99 FC |
3626 | SETTARG; |
3627 | return NORMAL; | |
a0ed51b3 LW |
3628 | } |
3629 | ||
748a9306 | 3630 | SvGROW(TARG,2); |
463ee0b2 LW |
3631 | SvCUR_set(TARG, 1); |
3632 | tmps = SvPVX(TARG); | |
eb160463 | 3633 | *tmps++ = (char)value; |
748a9306 | 3634 | *tmps = '\0'; |
a0d0e21e | 3635 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3636 | |
d3261b99 FC |
3637 | SETTARG; |
3638 | return NORMAL; | |
463ee0b2 LW |
3639 | } |
3640 | ||
79072805 LW |
3641 | PP(pp_crypt) |
3642 | { | |
79072805 | 3643 | #ifdef HAS_CRYPT |
20b7effb | 3644 | dSP; dTARGET; |
5f74f29c | 3645 | dPOPTOPssrl; |
85c16d83 | 3646 | STRLEN len; |
10516c54 | 3647 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3648 | |
85c16d83 | 3649 | if (DO_UTF8(left)) { |
2bc69dc4 | 3650 | /* If Unicode, try to downgrade. |
f2791508 JH |
3651 | * If not possible, croak. |
3652 | * Yes, we made this up. */ | |
659fbb76 | 3653 | SV* const tsv = newSVpvn_flags(tmps, len, SVf_UTF8|SVs_TEMP); |
2bc69dc4 | 3654 | |
2bc69dc4 | 3655 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3656 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3657 | } |
05404ffe JH |
3658 | # ifdef USE_ITHREADS |
3659 | # ifdef HAS_CRYPT_R | |
3660 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3661 | /* This should be threadsafe because in ithreads there is only | |
3662 | * one thread per interpreter. If this would not be true, | |
3663 | * we would need a mutex to protect this malloc. */ | |
3664 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3665 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3666 | #if defined(__GLIBC__) || defined(__EMX__) | |
3667 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3668 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3669 | /* work around glibc-2.2.5 bug */ | |
3670 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3671 | } | |
05404ffe | 3672 | #endif |
6ab58e4d | 3673 | } |
05404ffe JH |
3674 | # endif /* HAS_CRYPT_R */ |
3675 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3676 | # ifdef FCRYPT |
83003860 | 3677 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3678 | # else |
83003860 | 3679 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3680 | # endif |
fbc76eb3 | 3681 | SvUTF8_off(TARG); |
ec93b65f | 3682 | SETTARG; |
4808266b | 3683 | RETURN; |
79072805 | 3684 | #else |
b13b2135 | 3685 | DIE(aTHX_ |
79072805 LW |
3686 | "The crypt() function is unimplemented due to excessive paranoia."); |
3687 | #endif | |
79072805 LW |
3688 | } |
3689 | ||
00f254e2 KW |
3690 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3691 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3692 | ||
b1c05ba5 DM |
3693 | |
3694 | /* also used for: pp_lcfirst() */ | |
3695 | ||
79072805 LW |
3696 | PP(pp_ucfirst) |
3697 | { | |
00f254e2 KW |
3698 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3699 | * changes. This means that possibly we can change in-place, ie., just | |
3700 | * take the source and change that one character and store it back, but not | |
3701 | * if read-only etc, or if the length changes */ | |
3702 | ||
39644a26 | 3703 | dSP; |
d54190f6 | 3704 | SV *source = TOPs; |
00f254e2 | 3705 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3706 | STRLEN need; |
3707 | SV *dest; | |
00f254e2 KW |
3708 | bool inplace; /* ? Convert first char only, in-place */ |
3709 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3710 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3711 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3712 | const U8 *s; |
3713 | U8 *d; | |
3714 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3715 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3716 | * stored as UTF-8 at s. */ | |
3717 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3718 | * lowercased) character stored in tmpbuf. May be either | |
3719 | * UTF-8 or not, but in either case is the number of bytes */ | |
d54190f6 | 3720 | |
841a5e18 | 3721 | s = (const U8*)SvPV_const(source, slen); |
a0ed51b3 | 3722 | |
00f254e2 KW |
3723 | /* We may be able to get away with changing only the first character, in |
3724 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3725 | * not convert in-place. */ | |
1921e031 | 3726 | inplace = !SvREADONLY(source) && SvPADTMP(source); |
00f254e2 KW |
3727 | |
3728 | /* First calculate what the changed first character should be. This affects | |
3729 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3730 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3731 | ||
3732 | if (! slen) { /* If empty */ | |
3733 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3734 | ulen = 0; |
00f254e2 KW |
3735 | } |
3736 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3737 | doing_utf8 = TRUE; |
17e95c9d | 3738 | ulen = UTF8SKIP(s); |
094a2f8c | 3739 | if (op_type == OP_UCFIRST) { |
130c5df3 | 3740 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 3741 | _toTITLE_utf8_flags(s, s +slen, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3742 | #else |
a1a5ec35 | 3743 | _toTITLE_utf8_flags(s, s +slen, tmpbuf, &tculen, 0); |
130c5df3 | 3744 | #endif |
094a2f8c KW |
3745 | } |
3746 | else { | |
130c5df3 | 3747 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 3748 | _toLOWER_utf8_flags(s, s + slen, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3749 | #else |
a1a5ec35 | 3750 | _toLOWER_utf8_flags(s, s + slen, tmpbuf, &tculen, 0); |
130c5df3 | 3751 | #endif |
094a2f8c | 3752 | } |
00f254e2 | 3753 | |
17e95c9d KW |
3754 | /* we can't do in-place if the length changes. */ |
3755 | if (ulen != tculen) inplace = FALSE; | |
3756 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3757 | } |
00f254e2 KW |
3758 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3759 | * latin1 is treated as caseless. Note that a locale takes | |
3760 | * precedence */ | |
167d19f2 | 3761 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3762 | tculen = 1; /* Most characters will require one byte, but this will |
3763 | * need to be overridden for the tricky ones */ | |
3764 | need = slen + 1; | |
3765 | ||
3766 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3767 | |
00f254e2 | 3768 | /* lower case the first letter: no trickiness for any character */ |
130c5df3 | 3769 | #ifdef USE_LOCALE_CTYPE |
780fcc9f KW |
3770 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
3771 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
3772 | *tmpbuf = toLOWER_LC(*s); | |
3773 | } | |
3774 | else | |
130c5df3 | 3775 | #endif |
780fcc9f KW |
3776 | { |
3777 | *tmpbuf = (IN_UNI_8_BIT) | |
3778 | ? toLOWER_LATIN1(*s) | |
3779 | : toLOWER(*s); | |
3780 | } | |
00f254e2 | 3781 | } |
130c5df3 | 3782 | #ifdef USE_LOCALE_CTYPE |
780fcc9f | 3783 | /* is ucfirst() */ |
d6ded950 | 3784 | else if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
3785 | if (IN_UTF8_CTYPE_LOCALE) { |
3786 | goto do_uni_rules; | |
3787 | } | |
3788 | ||
780fcc9f | 3789 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
31f05a37 KW |
3790 | *tmpbuf = (U8) toUPPER_LC(*s); /* This would be a bug if any |
3791 | locales have upper and title case | |
3792 | different */ | |
00f254e2 | 3793 | } |
130c5df3 | 3794 | #endif |
00f254e2 KW |
3795 | else if (! IN_UNI_8_BIT) { |
3796 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3797 | * on EBCDIC machines whatever the | |
3798 | * native function does */ | |
3799 | } | |
31f05a37 KW |
3800 | else { |
3801 | /* Here, is ucfirst non-UTF-8, not in locale (unless that locale is | |
3802 | * UTF-8, which we treat as not in locale), and cased latin1 */ | |
3803 | UV title_ord; | |
91191cf7 | 3804 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 3805 | do_uni_rules: |
91191cf7 | 3806 | #endif |
31f05a37 KW |
3807 | |
3808 | title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); | |
167d19f2 KW |
3809 | if (tculen > 1) { |
3810 | assert(tculen == 2); | |
3811 | ||
3812 | /* If the result is an upper Latin1-range character, it can | |
3813 | * still be represented in one byte, which is its ordinal */ | |
3814 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3815 | *tmpbuf = (U8) title_ord; | |
3816 | tculen = 1; | |
00f254e2 KW |
3817 | } |
3818 | else { | |
167d19f2 KW |
3819 | /* Otherwise it became more than one ASCII character (in |
3820 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3821 | * beyond Latin1, so the number of bytes changed, so can't | |
3822 | * replace just the first character in place. */ | |
3823 | inplace = FALSE; | |
3824 | ||
d14578b8 KW |
3825 | /* If the result won't fit in a byte, the entire result |
3826 | * will have to be in UTF-8. Assume worst case sizing in | |
3827 | * conversion. (all latin1 characters occupy at most two | |
3828 | * bytes in utf8) */ | |
167d19f2 KW |
3829 | if (title_ord > 255) { |
3830 | doing_utf8 = TRUE; | |
3831 | convert_source_to_utf8 = TRUE; | |
3832 | need = slen * 2 + 1; | |
3833 | ||
3834 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
3835 | * (both) characters whose title case is above 255 is | |
3836 | * 2. */ | |
3837 | ulen = 2; | |
3838 | } | |
3839 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3840 | need = slen + 1 + 1; | |
3841 | } | |
00f254e2 | 3842 | } |
167d19f2 | 3843 | } |
00f254e2 KW |
3844 | } /* End of use Unicode (Latin1) semantics */ |
3845 | } /* End of changing the case of the first character */ | |
3846 | ||
3847 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3848 | * generate the result */ | |
3849 | if (inplace) { | |
3850 | ||
3851 | /* We can convert in place. This means we change just the first | |
3852 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3853 | dest = source; |
3854 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3855 | } else { | |
3856 | dTARGET; | |
3857 | ||
3858 | dest = TARG; | |
3859 | ||
00f254e2 KW |
3860 | /* Here, we can't convert in place; we earlier calculated how much |
3861 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3862 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3863 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3864 | (void)SvPOK_only(dest); |
3865 | ||
3866 | SETs(dest); | |
d54190f6 | 3867 | } |
44bc797b | 3868 | |
d54190f6 | 3869 | if (doing_utf8) { |
00f254e2 KW |
3870 | if (! inplace) { |
3871 | if (! convert_source_to_utf8) { | |
3872 | ||
3873 | /* Here both source and dest are in UTF-8, but have to create | |
3874 | * the entire output. We initialize the result to be the | |
3875 | * title/lower cased first character, and then append the rest | |
3876 | * of the string. */ | |
3877 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3878 | if (slen > ulen) { | |
3879 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3880 | } | |
3881 | } | |
3882 | else { | |
3883 | const U8 *const send = s + slen; | |
3884 | ||
3885 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3886 | * except we earlier UTF-8'd the first character of the source | |
3887 | * into tmpbuf. First put that into dest, and then append the | |
3888 | * rest of the source, converting it to UTF-8 as we go. */ | |
3889 | ||
3890 | /* Assert tculen is 2 here because the only two characters that | |
3891 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3892 | *d++ = *tmpbuf; | |
3893 | *d++ = *(tmpbuf + 1); | |
3894 | s++; /* We have just processed the 1st char */ | |
3895 | ||
3896 | for (; s < send; s++) { | |
3897 | d = uvchr_to_utf8(d, *s); | |
3898 | } | |
3899 | *d = '\0'; | |
3900 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3901 | } | |
d54190f6 | 3902 | SvUTF8_on(dest); |
a0ed51b3 | 3903 | } |
00f254e2 | 3904 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3905 | Copy(tmpbuf, d, tculen, U8); |
3906 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3907 | } |
094a2f8c | 3908 | |
a0ed51b3 | 3909 | } |
00f254e2 KW |
3910 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3911 | if (slen) { | |
00f254e2 KW |
3912 | if (inplace) { /* in-place, only need to change the 1st char */ |
3913 | *d = *tmpbuf; | |
3914 | } | |
3915 | else { /* Not in-place */ | |
3916 | ||
3917 | /* Copy the case-changed character(s) from tmpbuf */ | |
3918 | Copy(tmpbuf, d, tculen, U8); | |
3919 | d += tculen - 1; /* Code below expects d to point to final | |
3920 | * character stored */ | |
3921 | } | |
3922 | } | |
3923 | else { /* empty source */ | |
3924 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3925 | *d = *s; |
3926 | } | |
3927 | ||
00f254e2 KW |
3928 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3929 | * the destination to retain that flag */ | |
93e088e8 | 3930 | if (SvUTF8(source) && ! IN_BYTES) |
d54190f6 NC |
3931 | SvUTF8_on(dest); |
3932 | ||
00f254e2 | 3933 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3934 | /* This will copy the trailing NUL */ |
3935 | Copy(s + 1, d + 1, slen, U8); | |
3936 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3937 | } |
bbce6d69 | 3938 | } |
130c5df3 | 3939 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 3940 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
3941 | TAINT; |
3942 | SvTAINTED_on(dest); | |
3943 | } | |
130c5df3 | 3944 | #endif |
539689e7 FC |
3945 | if (dest != source && SvTAINTED(source)) |
3946 | SvTAINT(dest); | |
d54190f6 | 3947 | SvSETMAGIC(dest); |
3cb4e04f | 3948 | return NORMAL; |
79072805 LW |
3949 | } |
3950 | ||
67306194 NC |
3951 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
3952 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 3953 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
3954 | PP(pp_uc) |
3955 | { | |
39644a26 | 3956 | dSP; |
67306194 | 3957 | SV *source = TOPs; |
463ee0b2 | 3958 | STRLEN len; |
67306194 NC |
3959 | STRLEN min; |
3960 | SV *dest; | |
3961 | const U8 *s; | |
3962 | U8 *d; | |
79072805 | 3963 | |
67306194 NC |
3964 | SvGETMAGIC(source); |
3965 | ||
1921e031 | 3966 | if ( SvPADTMP(source) |
5cd5e2d6 FC |
3967 | && !SvREADONLY(source) && SvPOK(source) |
3968 | && !DO_UTF8(source) | |
130c5df3 KW |
3969 | && ( |
3970 | #ifdef USE_LOCALE_CTYPE | |
3971 | (IN_LC_RUNTIME(LC_CTYPE)) | |
31f05a37 | 3972 | ? ! IN_UTF8_CTYPE_LOCALE |
130c5df3 KW |
3973 | : |
3974 | #endif | |
3975 | ! IN_UNI_8_BIT)) | |
31f05a37 KW |
3976 | { |
3977 | ||
3978 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
3979 | * make the loop tight, so we overwrite the source with the dest before | |
3980 | * looking at it, and we need to look at the original source | |
3981 | * afterwards. There would also need to be code added to handle | |
3982 | * switching to not in-place in midstream if we run into characters | |
3983 | * that change the length. Since being in locale overrides UNI_8_BIT, | |
3984 | * that latter becomes irrelevant in the above test; instead for | |
3985 | * locale, the size can't normally change, except if the locale is a | |
3986 | * UTF-8 one */ | |
67306194 NC |
3987 | dest = source; |
3988 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3989 | min = len + 1; | |
3990 | } else { | |
a0ed51b3 | 3991 | dTARGET; |
a0ed51b3 | 3992 | |
67306194 | 3993 | dest = TARG; |
128c9517 | 3994 | |
841a5e18 | 3995 | s = (const U8*)SvPV_nomg_const(source, len); |
67306194 NC |
3996 | min = len + 1; |
3997 | ||
3998 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 3999 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
4000 | (void)SvPOK_only(dest); |
4001 | ||
4002 | SETs(dest); | |
a0ed51b3 | 4003 | } |
31351b04 | 4004 | |
67306194 NC |
4005 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
4006 | to check DO_UTF8 again here. */ | |
4007 | ||
4008 | if (DO_UTF8(source)) { | |
4009 | const U8 *const send = s + len; | |
bfac13d4 | 4010 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
67306194 | 4011 | |
4c8a458a KW |
4012 | /* All occurrences of these are to be moved to follow any other marks. |
4013 | * This is context-dependent. We may not be passed enough context to | |
4014 | * move the iota subscript beyond all of them, but we do the best we can | |
4015 | * with what we're given. The result is always better than if we | |
4016 | * hadn't done this. And, the problem would only arise if we are | |
4017 | * passed a character without all its combining marks, which would be | |
4018 | * the caller's mistake. The information this is based on comes from a | |
4019 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
4020 | * itself) and so can't be checked properly to see if it ever gets | |
4021 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 4022 | bool in_iota_subscript = FALSE; |
00f254e2 | 4023 | |
67306194 | 4024 | while (s < send) { |
3e16b0e6 KW |
4025 | STRLEN u; |
4026 | STRLEN ulen; | |
4027 | UV uv; | |
7dbf68d2 | 4028 | if (in_iota_subscript && ! _is_utf8_mark(s)) { |
3e16b0e6 | 4029 | |
00f254e2 | 4030 | /* A non-mark. Time to output the iota subscript */ |
a78bc3c6 KW |
4031 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4032 | d += capital_iota_len; | |
00f254e2 | 4033 | in_iota_subscript = FALSE; |
8e058693 | 4034 | } |
00f254e2 | 4035 | |
8e058693 KW |
4036 | /* Then handle the current character. Get the changed case value |
4037 | * and copy it to the output buffer */ | |
00f254e2 | 4038 | |
8e058693 | 4039 | u = UTF8SKIP(s); |
130c5df3 | 4040 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 4041 | uv = _toUPPER_utf8_flags(s, send, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4042 | #else |
a1a5ec35 | 4043 | uv = _toUPPER_utf8_flags(s, send, tmpbuf, &ulen, 0); |
130c5df3 | 4044 | #endif |
a78bc3c6 KW |
4045 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 |
4046 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
8e058693 | 4047 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
4b88fb76 | 4048 | && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI) |
8e058693 KW |
4049 | { |
4050 | in_iota_subscript = TRUE; | |
4051 | } | |
4052 | else { | |
4053 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4054 | /* If the eventually required minimum size outgrows the | |
4055 | * available space, we need to grow. */ | |
4056 | const UV o = d - (U8*)SvPVX_const(dest); | |
4057 | ||
4058 | /* If someone uppercases one million U+03B0s we SvGROW() | |
4059 | * one million times. Or we could try guessing how much to | |
4060 | * allocate without allocating too much. Such is life. | |
4061 | * See corresponding comment in lc code for another option | |
4062 | * */ | |
10656159 | 4063 | d = o + (U8*) SvGROW(dest, min); |
8e058693 KW |
4064 | } |
4065 | Copy(tmpbuf, d, ulen, U8); | |
4066 | d += ulen; | |
4067 | } | |
4068 | s += u; | |
67306194 | 4069 | } |
4c8a458a | 4070 | if (in_iota_subscript) { |
a78bc3c6 KW |
4071 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4072 | d += capital_iota_len; | |
4c8a458a | 4073 | } |
67306194 NC |
4074 | SvUTF8_on(dest); |
4075 | *d = '\0'; | |
094a2f8c | 4076 | |
67306194 | 4077 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4c8a458a KW |
4078 | } |
4079 | else { /* Not UTF-8 */ | |
67306194 NC |
4080 | if (len) { |
4081 | const U8 *const send = s + len; | |
00f254e2 KW |
4082 | |
4083 | /* Use locale casing if in locale; regular style if not treating | |
4084 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4085 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4086 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4087 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
4088 | if (IN_UTF8_CTYPE_LOCALE) { |
4089 | goto do_uni_rules; | |
4090 | } | |
780fcc9f | 4091 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
67306194 | 4092 | for (; s < send; d++, s++) |
31f05a37 | 4093 | *d = (U8) toUPPER_LC(*s); |
31351b04 | 4094 | } |
130c5df3 KW |
4095 | else |
4096 | #endif | |
4097 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4098 | for (; s < send; d++, s++) { |
67306194 | 4099 | *d = toUPPER(*s); |
00f254e2 | 4100 | } |
31351b04 | 4101 | } |
00f254e2 | 4102 | else { |
91191cf7 | 4103 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4104 | do_uni_rules: |
91191cf7 | 4105 | #endif |
00f254e2 KW |
4106 | for (; s < send; d++, s++) { |
4107 | *d = toUPPER_LATIN1_MOD(*s); | |
d14578b8 KW |
4108 | if (LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS)) { |
4109 | continue; | |
4110 | } | |
00f254e2 KW |
4111 | |
4112 | /* The mainstream case is the tight loop above. To avoid | |
4113 | * extra tests in that, all three characters that require | |
4114 | * special handling are mapped by the MOD to the one tested | |
4115 | * just above. | |
4116 | * Use the source to distinguish between the three cases */ | |
4117 | ||
79e064b9 KW |
4118 | #if UNICODE_MAJOR_VERSION > 2 \ |
4119 | || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ | |
4120 | && UNICODE_DOT_DOT_VERSION >= 8) | |
00f254e2 KW |
4121 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { |
4122 | ||
4123 | /* uc() of this requires 2 characters, but they are | |
4124 | * ASCII. If not enough room, grow the string */ | |
4125 | if (SvLEN(dest) < ++min) { | |
4126 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4127 | d = o + (U8*) SvGROW(dest, min); |
00f254e2 KW |
4128 | } |
4129 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
4130 | continue; /* Back to the tight loop; still in ASCII */ | |
4131 | } | |
79e064b9 | 4132 | #endif |
00f254e2 KW |
4133 | |
4134 | /* The other two special handling characters have their | |
4135 | * upper cases outside the latin1 range, hence need to be | |
4136 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
4137 | * here we are somewhere in the middle of processing a | |
4138 | * non-UTF-8 string, and realize that we will have to convert | |
4139 | * the whole thing to UTF-8. What to do? There are | |
4140 | * several possibilities. The simplest to code is to | |
4141 | * convert what we have so far, set a flag, and continue on | |
4142 | * in the loop. The flag would be tested each time through | |
4143 | * the loop, and if set, the next character would be | |
4144 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
4145 | * to slow down the mainstream case at all for this fairly | |
4146 | * rare case, so I didn't want to add a test that didn't | |
4147 | * absolutely have to be there in the loop, besides the | |
4148 | * possibility that it would get too complicated for | |
4149 | * optimizers to deal with. Another possibility is to just | |
4150 | * give up, convert the source to UTF-8, and restart the | |
4151 | * function that way. Another possibility is to convert | |
4152 | * both what has already been processed and what is yet to | |
4153 | * come separately to UTF-8, then jump into the loop that | |
4154 | * handles UTF-8. But the most efficient time-wise of the | |
4155 | * ones I could think of is what follows, and turned out to | |
4156 | * not require much extra code. */ | |
4157 | ||
4158 | /* Convert what we have so far into UTF-8, telling the | |
4159 | * function that we know it should be converted, and to | |
4160 | * allow extra space for what we haven't processed yet. | |
4161 | * Assume the worst case space requirements for converting | |
4162 | * what we haven't processed so far: that it will require | |
4163 | * two bytes for each remaining source character, plus the | |
4164 | * NUL at the end. This may cause the string pointer to | |
4165 | * move, so re-find it. */ | |
4166 | ||
4167 | len = d - (U8*)SvPVX_const(dest); | |
4168 | SvCUR_set(dest, len); | |
4169 | len = sv_utf8_upgrade_flags_grow(dest, | |
4170 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
4171 | (send -s) * 2 + 1); | |
4172 | d = (U8*)SvPVX(dest) + len; | |
4173 | ||
00f254e2 KW |
4174 | /* Now process the remainder of the source, converting to |
4175 | * upper and UTF-8. If a resulting byte is invariant in | |
4176 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
4177 | * append it to the output. */ | |
00f254e2 | 4178 | for (; s < send; s++) { |
0ecfbd28 KW |
4179 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); |
4180 | d += len; | |
00f254e2 KW |
4181 | } |
4182 | ||
4183 | /* Here have processed the whole source; no need to continue | |
4184 | * with the outer loop. Each character has been converted | |
4185 | * to upper case and converted to UTF-8 */ | |
4186 | ||
4187 | break; | |
4188 | } /* End of processing all latin1-style chars */ | |
4189 | } /* End of processing all chars */ | |
4190 | } /* End of source is not empty */ | |
4191 | ||
67306194 | 4192 | if (source != dest) { |
00f254e2 | 4193 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
4194 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4195 | } | |
00f254e2 | 4196 | } /* End of isn't utf8 */ |
130c5df3 | 4197 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4198 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4199 | TAINT; |
4200 | SvTAINTED_on(dest); | |
4201 | } | |
130c5df3 | 4202 | #endif |
539689e7 FC |
4203 | if (dest != source && SvTAINTED(source)) |
4204 | SvTAINT(dest); | |
67306194 | 4205 | SvSETMAGIC(dest); |
3cb4e04f | 4206 | return NORMAL; |
79072805 LW |
4207 | } |
4208 | ||
4209 | PP(pp_lc) | |
4210 | { | |
39644a26 | 4211 | dSP; |
ec9af7d4 | 4212 | SV *source = TOPs; |
463ee0b2 | 4213 | STRLEN len; |
ec9af7d4 NC |
4214 | STRLEN min; |
4215 | SV *dest; | |
4216 | const U8 *s; | |
4217 | U8 *d; | |
79072805 | 4218 | |
ec9af7d4 NC |
4219 | SvGETMAGIC(source); |
4220 | ||
1921e031 | 4221 | if ( SvPADTMP(source) |
5cd5e2d6 FC |
4222 | && !SvREADONLY(source) && SvPOK(source) |
4223 | && !DO_UTF8(source)) { | |
ec9af7d4 | 4224 | |
00f254e2 KW |
4225 | /* We can convert in place, as lowercasing anything in the latin1 range |
4226 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
4227 | dest = source; |
4228 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4229 | min = len + 1; | |
4230 | } else { | |
a0ed51b3 | 4231 | dTARGET; |
a0ed51b3 | 4232 | |
ec9af7d4 NC |
4233 | dest = TARG; |
4234 | ||
841a5e18 | 4235 | s = (const U8*)SvPV_nomg_const(source, len); |
ec9af7d4 | 4236 | min = len + 1; |
128c9517 | 4237 | |
ec9af7d4 | 4238 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 4239 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
4240 | (void)SvPOK_only(dest); |
4241 | ||
4242 | SETs(dest); | |
4243 | } | |
4244 | ||
4245 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
4246 | to check DO_UTF8 again here. */ | |
4247 | ||
4248 | if (DO_UTF8(source)) { | |
4249 | const U8 *const send = s + len; | |
4250 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
4251 | ||
4252 | while (s < send) { | |
06b5486a KW |
4253 | const STRLEN u = UTF8SKIP(s); |
4254 | STRLEN ulen; | |
00f254e2 | 4255 | |
130c5df3 | 4256 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 4257 | _toLOWER_utf8_flags(s, send, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4258 | #else |
a1a5ec35 | 4259 | _toLOWER_utf8_flags(s, send, tmpbuf, &ulen, 0); |
130c5df3 | 4260 | #endif |
00f254e2 | 4261 | |
06b5486a | 4262 | /* Here is where we would do context-sensitive actions. See the |
6006ebd0 | 4263 | * commit message for 86510fb15 for why there isn't any */ |
00f254e2 | 4264 | |
06b5486a | 4265 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 4266 | |
06b5486a KW |
4267 | /* If the eventually required minimum size outgrows the |
4268 | * available space, we need to grow. */ | |
4269 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 4270 | |
06b5486a KW |
4271 | /* If someone lowercases one million U+0130s we SvGROW() one |
4272 | * million times. Or we could try guessing how much to | |
4273 | * allocate without allocating too much. Such is life. | |
4274 | * Another option would be to grow an extra byte or two more | |
4275 | * each time we need to grow, which would cut down the million | |
4276 | * to 500K, with little waste */ | |
10656159 | 4277 | d = o + (U8*) SvGROW(dest, min); |
06b5486a | 4278 | } |
86510fb1 | 4279 | |
06b5486a KW |
4280 | /* Copy the newly lowercased letter to the output buffer we're |
4281 | * building */ | |
4282 | Copy(tmpbuf, d, ulen, U8); | |
4283 | d += ulen; | |
4284 | s += u; | |
00f254e2 | 4285 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4286 | SvUTF8_on(dest); |
4287 | *d = '\0'; | |
4288 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
00f254e2 | 4289 | } else { /* Not utf8 */ |
31351b04 | 4290 | if (len) { |
ec9af7d4 | 4291 | const U8 *const send = s + len; |
00f254e2 KW |
4292 | |
4293 | /* Use locale casing if in locale; regular style if not treating | |
4294 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4295 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4296 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4297 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
780fcc9f | 4298 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
ec9af7d4 NC |
4299 | for (; s < send; d++, s++) |
4300 | *d = toLOWER_LC(*s); | |
445bf929 | 4301 | } |
130c5df3 KW |
4302 | else |
4303 | #endif | |
4304 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4305 | for (; s < send; d++, s++) { |
ec9af7d4 | 4306 | *d = toLOWER(*s); |
00f254e2 KW |
4307 | } |
4308 | } | |
4309 | else { | |
4310 | for (; s < send; d++, s++) { | |
4311 | *d = toLOWER_LATIN1(*s); | |
4312 | } | |
31351b04 | 4313 | } |
bbce6d69 | 4314 | } |
ec9af7d4 NC |
4315 | if (source != dest) { |
4316 | *d = '\0'; | |
4317 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4318 | } | |
79072805 | 4319 | } |
130c5df3 | 4320 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4321 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4322 | TAINT; |
4323 | SvTAINTED_on(dest); | |
4324 | } | |
130c5df3 | 4325 | #endif |
539689e7 FC |
4326 | if (dest != source && SvTAINTED(source)) |
4327 | SvTAINT(dest); | |
ec9af7d4 | 4328 | SvSETMAGIC(dest); |
3cb4e04f | 4329 | return NORMAL; |
79072805 LW |
4330 | } |
4331 | ||
a0d0e21e | 4332 | PP(pp_quotemeta) |
79072805 | 4333 | { |
20b7effb | 4334 | dSP; dTARGET; |
1b6737cc | 4335 | SV * const sv = TOPs; |
a0d0e21e | 4336 | STRLEN len; |
eb578fdb | 4337 | const char *s = SvPV_const(sv,len); |
79072805 | 4338 | |
7e2040f0 | 4339 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4340 | if (len) { |
eb578fdb | 4341 | char *d; |
862a34c6 | 4342 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4343 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4344 | d = SvPVX(TARG); |
7e2040f0 | 4345 | if (DO_UTF8(sv)) { |
0dd2cdef | 4346 | while (len) { |
29050de5 | 4347 | STRLEN ulen = UTF8SKIP(s); |
2e2b2571 KW |
4348 | bool to_quote = FALSE; |
4349 | ||
4350 | if (UTF8_IS_INVARIANT(*s)) { | |
4351 | if (_isQUOTEMETA(*s)) { | |
4352 | to_quote = TRUE; | |
4353 | } | |
4354 | } | |
042d9e50 | 4355 | else if (UTF8_IS_NEXT_CHAR_DOWNGRADEABLE(s, s + len)) { |
3fea7d29 | 4356 | if ( |
130c5df3 | 4357 | #ifdef USE_LOCALE_CTYPE |
20adcf7c KW |
4358 | /* In locale, we quote all non-ASCII Latin1 chars. |
4359 | * Otherwise use the quoting rules */ | |
3fea7d29 BF |
4360 | |
4361 | IN_LC_RUNTIME(LC_CTYPE) | |
4362 | || | |
4363 | #endif | |
a62b247b | 4364 | _isQUOTEMETA(EIGHT_BIT_UTF8_TO_NATIVE(*s, *(s + 1)))) |
2e2b2571 KW |
4365 | { |
4366 | to_quote = TRUE; | |
4367 | } | |
4368 | } | |
685289b5 | 4369 | else if (is_QUOTEMETA_high(s)) { |
2e2b2571 KW |
4370 | to_quote = TRUE; |
4371 | } | |
4372 | ||
4373 | if (to_quote) { | |
4374 | *d++ = '\\'; | |
4375 | } | |
29050de5 KW |
4376 | if (ulen > len) |
4377 | ulen = len; | |
4378 | len -= ulen; | |
4379 | while (ulen--) | |
4380 | *d++ = *s++; | |
0dd2cdef | 4381 | } |
7e2040f0 | 4382 | SvUTF8_on(TARG); |
0dd2cdef | 4383 | } |
2e2b2571 KW |
4384 | else if (IN_UNI_8_BIT) { |
4385 | while (len--) { | |
4386 | if (_isQUOTEMETA(*s)) | |
4387 | *d++ = '\\'; | |
4388 | *d++ = *s++; | |
4389 | } | |
4390 | } | |
0dd2cdef | 4391 | else { |
2e2b2571 KW |
4392 | /* For non UNI_8_BIT (and hence in locale) just quote all \W |
4393 | * including everything above ASCII */ | |
0dd2cdef | 4394 | while (len--) { |
adfec831 | 4395 | if (!isWORDCHAR_A(*s)) |
0dd2cdef LW |
4396 | *d++ = '\\'; |
4397 | *d++ = *s++; | |
4398 | } | |
79072805 | 4399 | } |
a0d0e21e | 4400 | *d = '\0'; |
349d4f2f | 4401 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4402 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4403 | } |
a0d0e21e LW |
4404 | else |
4405 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4406 | SETTARG; |
cfe40115 | 4407 | return NORMAL; |
79072805 LW |
4408 | } |
4409 | ||
838f2281 BF |
4410 | PP(pp_fc) |
4411 | { | |
838f2281 BF |
4412 | dTARGET; |
4413 | dSP; | |
4414 | SV *source = TOPs; | |
4415 | STRLEN len; | |
4416 | STRLEN min; | |
4417 | SV *dest; | |
4418 | const U8 *s; | |
4419 | const U8 *send; | |
4420 | U8 *d; | |
bfac13d4 | 4421 | U8 tmpbuf[UTF8_MAXBYTES_CASE + 1]; |
9b63e895 KW |
4422 | #if UNICODE_MAJOR_VERSION > 3 /* no multifolds in early Unicode */ \ |
4423 | || (UNICODE_MAJOR_VERSION == 3 && ( UNICODE_DOT_VERSION > 0) \ | |
4424 | || UNICODE_DOT_DOT_VERSION > 0) | |
a4b69695 KW |
4425 | const bool full_folding = TRUE; /* This variable is here so we can easily |
4426 | move to more generality later */ | |
9b63e895 KW |
4427 | #else |
4428 | const bool full_folding = FALSE; | |
4429 | #endif | |
838f2281 | 4430 | const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 ) |
130c5df3 KW |
4431 | #ifdef USE_LOCALE_CTYPE |
4432 | | ( IN_LC_RUNTIME(LC_CTYPE) ? FOLD_FLAGS_LOCALE : 0 ) | |
4433 | #endif | |
4434 | ; | |
838f2281 BF |
4435 | |
4436 | /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me. | |
4437 | * You are welcome(?) -Hugmeir | |
4438 | */ | |
4439 | ||
4440 | SvGETMAGIC(source); | |
4441 | ||
4442 | dest = TARG; | |
4443 | ||
4444 | if (SvOK(source)) { | |
4445 | s = (const U8*)SvPV_nomg_const(source, len); | |
4446 | } else { | |
4447 | if (ckWARN(WARN_UNINITIALIZED)) | |
4448 | report_uninit(source); | |
4449 | s = (const U8*)""; | |
4450 | len = 0; | |
4451 | } | |
4452 | ||
4453 | min = len + 1; | |
4454 | ||
4455 | SvUPGRADE(dest, SVt_PV); | |
4456 | d = (U8*)SvGROW(dest, min); | |
4457 | (void)SvPOK_only(dest); | |
4458 | ||
4459 | SETs(dest); | |
4460 | ||
4461 | send = s + len; | |
4462 | if (DO_UTF8(source)) { /* UTF-8 flagged string. */ | |
838f2281 BF |
4463 | while (s < send) { |
4464 | const STRLEN u = UTF8SKIP(s); | |
4465 | STRLEN ulen; | |
4466 | ||
a1a5ec35 | 4467 | _toFOLD_utf8_flags(s, send, tmpbuf, &ulen, flags); |
838f2281 BF |
4468 | |
4469 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4470 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4471 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4472 | } |
4473 | ||
4474 | Copy(tmpbuf, d, ulen, U8); | |
4475 | d += ulen; | |
4476 | s += u; | |
4477 | } | |
4478 | SvUTF8_on(dest); | |
838f2281 | 4479 | } /* Unflagged string */ |
0902dd32 | 4480 | else if (len) { |
130c5df3 | 4481 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4482 | if ( IN_LC_RUNTIME(LC_CTYPE) ) { /* Under locale */ |
31f05a37 KW |
4483 | if (IN_UTF8_CTYPE_LOCALE) { |
4484 | goto do_uni_folding; | |
4485 | } | |
780fcc9f | 4486 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
838f2281 | 4487 | for (; s < send; d++, s++) |
ea36a843 | 4488 | *d = (U8) toFOLD_LC(*s); |
838f2281 | 4489 | } |
130c5df3 KW |
4490 | else |
4491 | #endif | |
4492 | if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */ | |
838f2281 | 4493 | for (; s < send; d++, s++) |
d22b930b | 4494 | *d = toFOLD(*s); |
838f2281 BF |
4495 | } |
4496 | else { | |
91191cf7 | 4497 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4498 | do_uni_folding: |
91191cf7 | 4499 | #endif |
d14578b8 KW |
4500 | /* For ASCII and the Latin-1 range, there's only two troublesome |
4501 | * folds, \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full | |
22e255cb | 4502 | * casefolding becomes 'ss'; and \x{B5} (\N{MICRO SIGN}), which |
d14578b8 KW |
4503 | * under any fold becomes \x{3BC} (\N{GREEK SMALL LETTER MU}) -- |
4504 | * For the rest, the casefold is their lowercase. */ | |
838f2281 BF |
4505 | for (; s < send; d++, s++) { |
4506 | if (*s == MICRO_SIGN) { | |
d14578b8 KW |
4507 | /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, |
4508 | * which is outside of the latin-1 range. There's a couple | |
4509 | * of ways to deal with this -- khw discusses them in | |
4510 | * pp_lc/uc, so go there :) What we do here is upgrade what | |
4511 | * we had already casefolded, then enter an inner loop that | |
4512 | * appends the rest of the characters as UTF-8. */ | |
838f2281 BF |
4513 | len = d - (U8*)SvPVX_const(dest); |
4514 | SvCUR_set(dest, len); | |
4515 | len = sv_utf8_upgrade_flags_grow(dest, | |
4516 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
ea4d335b KW |
4517 | /* The max expansion for latin1 |
4518 | * chars is 1 byte becomes 2 */ | |
4519 | (send -s) * 2 + 1); | |
838f2281 BF |
4520 | d = (U8*)SvPVX(dest) + len; |
4521 | ||
a78bc3c6 KW |
4522 | Copy(GREEK_SMALL_LETTER_MU_UTF8, d, small_mu_len, U8); |
4523 | d += small_mu_len; | |
838f2281 BF |
4524 | s++; |
4525 | for (; s < send; s++) { | |
4526 | STRLEN ulen; | |
4527 | UV fc = _to_uni_fold_flags(*s, tmpbuf, &ulen, flags); | |
6f2d5cbc | 4528 | if UVCHR_IS_INVARIANT(fc) { |
d14578b8 KW |
4529 | if (full_folding |
4530 | && *s == LATIN_SMALL_LETTER_SHARP_S) | |
4531 | { | |
838f2281 BF |
4532 | *d++ = 's'; |
4533 | *d++ = 's'; | |
4534 | } | |
4535 | else | |
4536 | *d++ = (U8)fc; | |
4537 | } | |
4538 | else { | |
4539 | Copy(tmpbuf, d, ulen, U8); | |
4540 | d += ulen; | |
4541 | } | |
4542 | } | |
4543 | break; | |
4544 | } | |
4545 | else if (full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) { | |
d14578b8 KW |
4546 | /* Under full casefolding, LATIN SMALL LETTER SHARP S |
4547 | * becomes "ss", which may require growing the SV. */ | |
838f2281 BF |
4548 | if (SvLEN(dest) < ++min) { |
4549 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4550 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4551 | } |
4552 | *(d)++ = 's'; | |
4553 | *d = 's'; | |
4554 | } | |
d14578b8 KW |
4555 | else { /* If it's not one of those two, the fold is their lower |
4556 | case */ | |
838f2281 BF |
4557 | *d = toLOWER_LATIN1(*s); |
4558 | } | |
4559 | } | |
4560 | } | |
4561 | } | |
4562 | *d = '\0'; | |
4563 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4564 | ||
130c5df3 | 4565 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4566 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4567 | TAINT; |
4568 | SvTAINTED_on(dest); | |
4569 | } | |
130c5df3 | 4570 | #endif |
838f2281 BF |
4571 | if (SvTAINTED(source)) |
4572 | SvTAINT(dest); | |
4573 | SvSETMAGIC(dest); | |
4574 | RETURN; | |
4575 | } | |
4576 | ||
a0d0e21e | 4577 | /* Arrays. */ |
79072805 | 4578 | |
a0d0e21e | 4579 | PP(pp_aslice) |
79072805 | 4580 | { |
20b7effb | 4581 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4582 | AV *const av = MUTABLE_AV(POPs); |
4583 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 4584 | |
a0d0e21e | 4585 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4586 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4587 | bool can_preserve = FALSE; | |
4588 | ||
4589 | if (localizing) { | |
4590 | MAGIC *mg; | |
4591 | HV *stash; | |
4592 | ||
4593 | can_preserve = SvCANEXISTDELETE(av); | |
4594 | } | |
4595 | ||
4596 | if (lval && localizing) { | |
eb578fdb | 4597 | SV **svp; |
c70927a6 | 4598 | SSize_t max = -1; |
924508f0 | 4599 | for (svp = MARK + 1; svp <= SP; svp++) { |
c70927a6 | 4600 | const SSize_t elem = SvIV(*svp); |
748a9306 LW |
4601 | if (elem > max) |
4602 | max = elem; | |
4603 | } | |
4604 | if (max > AvMAX(av)) | |
4605 | av_extend(av, max); | |
4606 | } | |
4ad10a0b | 4607 | |
a0d0e21e | 4608 | while (++MARK <= SP) { |
eb578fdb | 4609 | SV **svp; |
c70927a6 | 4610 | SSize_t elem = SvIV(*MARK); |
4ad10a0b | 4611 | bool preeminent = TRUE; |
a0d0e21e | 4612 | |
4ad10a0b VP |
4613 | if (localizing && can_preserve) { |
4614 | /* If we can determine whether the element exist, | |
4615 | * Try to preserve the existenceness of a tied array | |
4616 | * element by using EXISTS and DELETE if possible. | |
4617 | * Fallback to FETCH and STORE otherwise. */ | |
4618 | preeminent = av_exists(av, elem); | |
4619 | } | |
4620 | ||
a0d0e21e LW |
4621 | svp = av_fetch(av, elem, lval); |
4622 | if (lval) { | |
ce0d59fd | 4623 | if (!svp || !*svp) |
cea2e8a9 | 4624 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4625 | if (localizing) { |
4626 | if (preeminent) | |
4627 | save_aelem(av, elem, svp); | |
4628 | else | |
4629 | SAVEADELETE(av, elem); | |
4630 | } | |
79072805 | 4631 | } |
3280af22 | 4632 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4633 | } |
4634 | } | |
82334630 | 4635 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 4636 | MARK = ORIGMARK; |
04ab2c87 | 4637 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4638 | SP = MARK; |
4639 | } | |
79072805 LW |
4640 | RETURN; |
4641 | } | |
4642 | ||
6dd3e0f2 RZ |
4643 | PP(pp_kvaslice) |
4644 | { | |
20b7effb | 4645 | dSP; dMARK; |
6dd3e0f2 RZ |
4646 | AV *const av = MUTABLE_AV(POPs); |
4647 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 4648 | SSize_t items = SP - MARK; |
6dd3e0f2 RZ |
4649 | |
4650 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
4651 | const I32 flags = is_lvalue_sub(); | |
4652 | if (flags) { | |
4653 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 4654 | /* diag_listed_as: Can't modify %s in %s */ |
6dd3e0f2 RZ |
4655 | Perl_croak(aTHX_ "Can't modify index/value array slice in list assignment"); |
4656 | lval = flags; | |
4657 | } | |
4658 | } | |
4659 | ||
4660 | MEXTEND(SP,items); | |
4661 | while (items > 1) { | |
4662 | *(MARK+items*2-1) = *(MARK+items); | |
4663 | items--; | |
4664 | } | |
4665 | items = SP-MARK; | |
4666 | SP += items; | |
4667 | ||
4668 | while (++MARK <= SP) { | |
4669 | SV **svp; | |
4670 | ||
4671 | svp = av_fetch(av, SvIV(*MARK), lval); | |
4672 | if (lval) { | |
4673 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
4674 | DIE(aTHX_ PL_no_aelem, SvIV(*MARK)); | |
4675 | } | |
4676 | *MARK = sv_mortalcopy(*MARK); | |
4677 | } | |
4678 | *++MARK = svp ? *svp : &PL_sv_undef; | |
4679 | } | |
82334630 | 4680 | if (GIMME_V != G_ARRAY) { |
6dd3e0f2 RZ |
4681 | MARK = SP - items*2; |
4682 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
4683 | SP = MARK; | |
4684 | } | |
4685 | RETURN; | |
4686 | } | |
4687 | ||
b1c05ba5 | 4688 | |
878d132a NC |
4689 | PP(pp_aeach) |
4690 | { | |
878d132a | 4691 | dSP; |
502c6561 | 4692 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 4693 | const U8 gimme = GIMME_V; |
453d94a9 | 4694 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4695 | const IV current = (*iterp)++; |
4696 | ||
b9f2b683 | 4697 | if (current > av_tindex(array)) { |
878d132a NC |
4698 | *iterp = 0; |
4699 | if (gimme == G_SCALAR) | |
4700 | RETPUSHUNDEF; | |
4701 | else | |
4702 | RETURN; | |
4703 | } | |
4704 | ||
4705 | EXTEND(SP, 2); | |
e1dccc0d | 4706 | mPUSHi(current); |
878d132a NC |
4707 | if (gimme == G_ARRAY) { |
4708 | SV **const element = av_fetch(array, current, 0); | |
4709 | PUSHs(element ? *element : &PL_sv_undef); | |
4710 | } | |
4711 | RETURN; | |
4712 | } | |
4713 | ||
b1c05ba5 | 4714 | /* also used for: pp_avalues()*/ |
878d132a NC |
4715 | PP(pp_akeys) |
4716 | { | |
878d132a | 4717 | dSP; |
502c6561 | 4718 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 4719 | const U8 gimme = GIMME_V; |
878d132a NC |
4720 | |
4721 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4722 | ||
4723 | if (gimme == G_SCALAR) { | |
4724 | dTARGET; | |
b9f2b683 | 4725 | PUSHi(av_tindex(array) + 1); |
878d132a NC |
4726 | } |
4727 | else if (gimme == G_ARRAY) { | |
738155d2 FC |
4728 | if (UNLIKELY(PL_op->op_private & OPpMAYBE_LVSUB)) { |
4729 | const I32 flags = is_lvalue_sub(); | |
4730 | if (flags && !(flags & OPpENTERSUB_INARGS)) | |
4731 | /* diag_listed_as: Can't modify %s in %s */ | |
4732 | Perl_croak(aTHX_ | |
4733 | "Can't modify keys on array in list assignment"); | |
4734 | } | |
4735 | { | |
878d132a | 4736 | IV n = Perl_av_len(aTHX_ array); |
e1dccc0d | 4737 | IV i; |
878d132a NC |
4738 | |
4739 | EXTEND(SP, n + 1); | |
4740 | ||
73665bc4 FC |
4741 | if ( PL_op->op_type == OP_AKEYS |
4742 | || ( PL_op->op_type == OP_AVHVSWITCH | |
cd642408 | 4743 | && (PL_op->op_private & 3) + OP_AEACH == OP_AKEYS )) |
73665bc4 | 4744 | { |
e1dccc0d | 4745 | for (i = 0; i <= n; i++) { |
878d132a NC |
4746 | mPUSHi(i); |
4747 | } | |
4748 | } | |
4749 | else { | |
4750 | for (i = 0; i <= n; i++) { | |
4751 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4752 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4753 | } | |
4754 | } | |
738155d2 | 4755 | } |
878d132a NC |
4756 | } |
4757 | RETURN; | |
4758 | } | |
4759 | ||
79072805 LW |
4760 | /* Associative arrays. */ |
4761 | ||
4762 | PP(pp_each) | |
4763 | { | |
39644a26 | 4764 | dSP; |
85fbaab2 | 4765 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4766 | HE *entry; |
1c23e2bd | 4767 | const U8 gimme = GIMME_V; |
8ec5e241 | 4768 | |
6d822dc4 | 4769 | entry = hv_iternext(hash); |
79072805 | 4770 | |
79072805 LW |
4771 | EXTEND(SP, 2); |
4772 | if (entry) { | |
1b6737cc | 4773 | SV* const sv = hv_iterkeysv(entry); |
2b32fed8 | 4774 | PUSHs(sv); |
54310121 | 4775 | if (gimme == G_ARRAY) { |
59af0135 | 4776 | SV *val; |
6d822dc4 | 4777 | val = hv_iterval(hash, entry); |
59af0135 | 4778 | PUSHs(val); |
79072805 | 4779 | } |
79072805 | 4780 | } |
54310121 | 4781 | else if (gimme == G_SCALAR) |
79072805 LW |
4782 | RETPUSHUNDEF; |
4783 | ||
4784 | RETURN; | |
4785 | } | |
4786 | ||
7332a6c4 VP |
4787 | STATIC OP * |
4788 | S_do_delete_local(pTHX) | |
79072805 | 4789 | { |
39644a26 | 4790 | dSP; |
1c23e2bd | 4791 | const U8 gimme = GIMME_V; |
7332a6c4 VP |
4792 | const MAGIC *mg; |
4793 | HV *stash; | |
ca3f996a | 4794 | const bool sliced = !!(PL_op->op_private & OPpSLICE); |
626040f7 | 4795 | SV **unsliced_keysv = sliced ? NULL : sp--; |
ca3f996a | 4796 | SV * const osv = POPs; |
626040f7 | 4797 | SV **mark = sliced ? PL_stack_base + POPMARK : unsliced_keysv-1; |
ca3f996a FC |
4798 | dORIGMARK; |
4799 | const bool tied = SvRMAGICAL(osv) | |
7332a6c4 | 4800 | && mg_find((const SV *)osv, PERL_MAGIC_tied); |
ca3f996a FC |
4801 | const bool can_preserve = SvCANEXISTDELETE(osv); |
4802 | const U32 type = SvTYPE(osv); | |
626040f7 | 4803 | SV ** const end = sliced ? SP : unsliced_keysv; |
ca3f996a FC |
4804 | |
4805 | if (type == SVt_PVHV) { /* hash element */ | |
7332a6c4 | 4806 | HV * const hv = MUTABLE_HV(osv); |
ca3f996a | 4807 | while (++MARK <= end) { |
7332a6c4 VP |
4808 | SV * const keysv = *MARK; |
4809 | SV *sv = NULL; | |
4810 | bool preeminent = TRUE; | |
4811 | if (can_preserve) | |
4812 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4813 | if (tied) { | |
4814 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4815 | if (he) | |
4816 | sv = HeVAL(he); | |
4817 | else | |
4818 | preeminent = FALSE; | |
4819 | } | |
4820 | else { | |
4821 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
9332b95f FC |
4822 | if (preeminent) |
4823 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4824 | } |
4825 | if (preeminent) { | |
be6064fd | 4826 | if (!sv) DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
7332a6c4 VP |
4827 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); |
4828 | if (tied) { | |
4829 | *MARK = sv_mortalcopy(sv); | |
4830 | mg_clear(sv); | |
4831 | } else | |
4832 | *MARK = sv; | |
4833 | } | |
4834 | else { | |
4835 | SAVEHDELETE(hv, keysv); | |
4836 | *MARK = &PL_sv_undef; | |
4837 | } | |
4838 | } | |
ca3f996a FC |
4839 | } |
4840 | else if (type == SVt_PVAV) { /* array element */ | |
7332a6c4 VP |
4841 | if (PL_op->op_flags & OPf_SPECIAL) { |
4842 | AV * const av = MUTABLE_AV(osv); | |
ca3f996a | 4843 | while (++MARK <= end) { |
c70927a6 | 4844 | SSize_t idx = SvIV(*MARK); |
7332a6c4 VP |
4845 | SV *sv = NULL; |
4846 | bool preeminent = TRUE; | |
4847 | if (can_preserve) | |
4848 | preeminent = av_exists(av, idx); | |
4849 | if (tied) { | |
4850 | SV **svp = av_fetch(av, idx, 1); | |
4851 | if (svp) | |
4852 | sv = *svp; | |
4853 | else | |
4854 | preeminent = FALSE; | |
4855 | } | |
4856 | else { | |
4857 | sv = av_delete(av, idx, 0); | |
9332b95f FC |
4858 | if (preeminent) |
4859 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4860 | } |
4861 | if (preeminent) { | |
4862 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4863 | if (tied) { | |
4864 | *MARK = sv_mortalcopy(sv); | |
4865 | mg_clear(sv); | |
4866 | } else | |
4867 | *MARK = sv; | |
4868 | } | |
4869 | else { | |
4870 | SAVEADELETE(av, idx); | |
4871 | *MARK = &PL_sv_undef; | |
4872 | } | |
4873 | } | |
4874 | } | |
ca3f996a FC |
4875 | else |
4876 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4877 | } | |
4878 | else | |
7332a6c4 | 4879 | DIE(aTHX_ "Not a HASH reference"); |
ca3f996a | 4880 | if (sliced) { |
7332a6c4 VP |
4881 | if (gimme == G_VOID) |
4882 | SP = ORIGMARK; | |
4883 | else if (gimme == G_SCALAR) { | |
4884 | MARK = ORIGMARK; | |
4885 | if (SP > MARK) | |
4886 | *++MARK = *SP; | |
4887 | else | |
4888 | *++MARK = &PL_sv_undef; | |
4889 | SP = MARK; | |
4890 | } | |
4891 | } | |
ca3f996a | 4892 | else if (gimme != G_VOID) |
626040f7 | 4893 | PUSHs(*unsliced_keysv); |
7332a6c4 VP |
4894 | |
4895 | RETURN; | |
4896 | } | |
4897 | ||
4898 | PP(pp_delete) | |
4899 | { | |
7332a6c4 | 4900 | dSP; |
1c23e2bd | 4901 | U8 gimme; |
7332a6c4 VP |
4902 | I32 discard; |
4903 | ||
4904 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4905 | return do_delete_local(); | |
4906 | ||
4907 | gimme = GIMME_V; | |
4908 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4909 | |
cc0776d6 | 4910 | if (PL_op->op_private & (OPpSLICE|OPpKVSLICE)) { |
5f05dabc | 4911 | dMARK; dORIGMARK; |
85fbaab2 | 4912 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4913 | const U32 hvtype = SvTYPE(hv); |
cc0776d6 DIM |
4914 | int skip = 0; |
4915 | if (PL_op->op_private & OPpKVSLICE) { | |
4916 | SSize_t items = SP - MARK; | |
4917 | ||
4918 | MEXTEND(SP,items); | |
4919 | while (items > 1) { | |
4920 | *(MARK+items*2-1) = *(MARK+items); | |
4921 | items--; | |
4922 | } | |
4923 | items = SP - MARK; | |
4924 | SP += items; | |
4925 | skip = 1; | |
4926 | } | |
01020589 | 4927 | if (hvtype == SVt_PVHV) { /* hash element */ |
cc0776d6 DIM |
4928 | while ((MARK += (1+skip)) <= SP) { |
4929 | SV * const sv = hv_delete_ent(hv, *(MARK-skip), discard, 0); | |
01020589 GS |
4930 | *MARK = sv ? sv : &PL_sv_undef; |
4931 | } | |
5f05dabc | 4932 | } |
6d822dc4 MS |
4933 | else if (hvtype == SVt_PVAV) { /* array element */ |
4934 | if (PL_op->op_flags & OPf_SPECIAL) { | |
cc0776d6 DIM |
4935 | while ((MARK += (1+skip)) <= SP) { |
4936 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*(MARK-skip)), discard); | |
6d822dc4 MS |
4937 | *MARK = sv ? sv : &PL_sv_undef; |
4938 | } | |
4939 | } | |
01020589 GS |
4940 | } |
4941 | else | |
4942 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4943 | if (discard) |
4944 | SP = ORIGMARK; | |
4945 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4946 | MARK = ORIGMARK; |
9111c9c0 DM |
4947 | if (SP > MARK) |
4948 | *++MARK = *SP; | |
4949 | else | |
4950 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4951 | SP = MARK; |
4952 | } | |
4953 | } | |
4954 | else { | |
4955 | SV *keysv = POPs; | |
85fbaab2 | 4956 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4957 | SV *sv = NULL; |
97fcbf96 MB |
4958 | if (SvTYPE(hv) == SVt_PVHV) |
4959 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4960 | else if (SvTYPE(hv) == SVt_PVAV) { |
4961 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 4962 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
4963 | else |
4964 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 4965 | } |
97fcbf96 | 4966 | else |
cea2e8a9 | 4967 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 4968 | if (!sv) |
3280af22 | 4969 | sv = &PL_sv_undef; |
54310121 | 4970 | if (!discard) |
4971 | PUSHs(sv); | |
79072805 | 4972 | } |
79072805 LW |
4973 | RETURN; |
4974 | } | |
4975 | ||
a0d0e21e | 4976 | PP(pp_exists) |
79072805 | 4977 | { |
39644a26 | 4978 | dSP; |
afebc493 GS |
4979 | SV *tmpsv; |
4980 | HV *hv; | |
4981 | ||
c7e88ff3 | 4982 | if (UNLIKELY( PL_op->op_private & OPpEXISTS_SUB )) { |
afebc493 | 4983 | GV *gv; |
0bd48802 | 4984 | SV * const sv = POPs; |
f2c0649b | 4985 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
4986 | if (cv) |
4987 | RETPUSHYES; | |
4988 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
4989 | RETPUSHYES; | |
4990 | RETPUSHNO; | |
4991 | } | |
4992 | tmpsv = POPs; | |
85fbaab2 | 4993 | hv = MUTABLE_HV(POPs); |
c7e88ff3 | 4994 | if (LIKELY( SvTYPE(hv) == SVt_PVHV )) { |
ae77835f | 4995 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 4996 | RETPUSHYES; |
ef54e1a4 JH |
4997 | } |
4998 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 4999 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 5000 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
5001 | RETPUSHYES; |
5002 | } | |
ef54e1a4 JH |
5003 | } |
5004 | else { | |
cea2e8a9 | 5005 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 5006 | } |
a0d0e21e LW |
5007 | RETPUSHNO; |
5008 | } | |
79072805 | 5009 | |
a0d0e21e LW |
5010 | PP(pp_hslice) |
5011 | { | |
20b7effb | 5012 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
5013 | HV * const hv = MUTABLE_HV(POPs); |
5014 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
1b6737cc | 5015 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
d30e492c | 5016 | bool can_preserve = FALSE; |
79072805 | 5017 | |
eb85dfd3 DM |
5018 | if (localizing) { |
5019 | MAGIC *mg; | |
5020 | HV *stash; | |
5021 | ||
2c5f48c2 | 5022 | if (SvCANEXISTDELETE(hv)) |
d30e492c | 5023 | can_preserve = TRUE; |
eb85dfd3 DM |
5024 | } |
5025 | ||
6d822dc4 | 5026 | while (++MARK <= SP) { |
1b6737cc | 5027 | SV * const keysv = *MARK; |
6d822dc4 MS |
5028 | SV **svp; |
5029 | HE *he; | |
d30e492c VP |
5030 | bool preeminent = TRUE; |
5031 | ||
5032 | if (localizing && can_preserve) { | |
5033 | /* If we can determine whether the element exist, | |
5034 | * try to preserve the existenceness of a tied hash | |
5035 | * element by using EXISTS and DELETE if possible. | |
5036 | * Fallback to FETCH and STORE otherwise. */ | |
5037 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 5038 | } |
eb85dfd3 | 5039 | |
6d822dc4 | 5040 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 5041 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 5042 | |
6d822dc4 | 5043 | if (lval) { |
746f6409 | 5044 | if (!svp || !*svp || *svp == &PL_sv_undef) { |
be2597df | 5045 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
5046 | } |
5047 | if (localizing) { | |
7a2e501a | 5048 | if (HvNAME_get(hv) && isGV(*svp)) |
159b6efe | 5049 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
5050 | else if (preeminent) |
5051 | save_helem_flags(hv, keysv, svp, | |
5052 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
5053 | else | |
5054 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
5055 | } |
5056 | } | |
746f6409 | 5057 | *MARK = svp && *svp ? *svp : &PL_sv_undef; |
79072805 | 5058 | } |
82334630 | 5059 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 5060 | MARK = ORIGMARK; |
04ab2c87 | 5061 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 5062 | SP = MARK; |
79072805 | 5063 | } |
a0d0e21e LW |
5064 | RETURN; |
5065 | } | |
5066 | ||
5cae3edb RZ |
5067 | PP(pp_kvhslice) |
5068 | { | |
20b7effb | 5069 | dSP; dMARK; |
5cae3edb RZ |
5070 | HV * const hv = MUTABLE_HV(POPs); |
5071 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 5072 | SSize_t items = SP - MARK; |
5cae3edb RZ |
5073 | |
5074 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
5075 | const I32 flags = is_lvalue_sub(); | |
5076 | if (flags) { | |
5077 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 5078 | /* diag_listed_as: Can't modify %s in %s */ |
cc5f9b8a FC |
5079 | Perl_croak(aTHX_ "Can't modify key/value hash slice in %s assignment", |
5080 | GIMME_V == G_ARRAY ? "list" : "scalar"); | |
5cae3edb RZ |
5081 | lval = flags; |
5082 | } | |
5083 | } | |
5084 | ||
5085 | MEXTEND(SP,items); | |
5086 | while (items > 1) { | |
5087 | *(MARK+items*2-1) = *(MARK+items); | |
5088 | items--; | |
5089 | } | |
5090 | items = SP-MARK; | |
5091 | SP += items; | |
5092 | ||
5093 | while (++MARK <= SP) { | |
5094 | SV * const keysv = *MARK; | |
5095 | SV **svp; | |
5096 | HE *he; | |
5097 | ||
5098 | he = hv_fetch_ent(hv, keysv, lval, 0); | |
5099 | svp = he ? &HeVAL(he) : NULL; | |
5100 | ||
5101 | if (lval) { | |
5102 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
5103 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
5104 | } | |
5105 | *MARK = sv_mortalcopy(*MARK); | |
5106 | } | |
5107 | *++MARK = svp && *svp ? *svp : &PL_sv_undef; | |
5108 | } | |
82334630 | 5109 | if (GIMME_V != G_ARRAY) { |
5cae3edb RZ |
5110 | MARK = SP - items*2; |
5111 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
5112 | SP = MARK; | |
5113 | } | |
5114 | RETURN; | |
5115 | } | |
5116 | ||
a0d0e21e LW |
5117 | /* List operators. */ |
5118 | ||
5119 | PP(pp_list) | |
5120 | { | |
4fa715fa | 5121 | I32 markidx = POPMARK; |
82334630 | 5122 | if (GIMME_V != G_ARRAY) { |
4fa715fa DD |
5123 | SV **mark = PL_stack_base + markidx; |
5124 | dSP; | |
b54564c3 | 5125 | EXTEND(SP, 1); /* in case no arguments, as in @empty */ |
a0d0e21e LW |
5126 | if (++MARK <= SP) |
5127 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 5128 | else |
3280af22 | 5129 | *MARK = &PL_sv_undef; |
a0d0e21e | 5130 | SP = MARK; |
4fa715fa | 5131 | PUTBACK; |
79072805 | 5132 | } |
4fa715fa | 5133 | return NORMAL; |
79072805 LW |
5134 | } |
5135 | ||
a0d0e21e | 5136 | PP(pp_lslice) |
79072805 | 5137 | { |
39644a26 | 5138 | dSP; |
1b6737cc AL |
5139 | SV ** const lastrelem = PL_stack_sp; |
5140 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
5141 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
eb578fdb | 5142 | SV ** const firstrelem = lastlelem + 1; |
706a6ebc | 5143 | const U8 mod = PL_op->op_flags & OPf_MOD; |
1b6737cc | 5144 | |
eb578fdb KW |
5145 | const I32 max = lastrelem - lastlelem; |
5146 | SV **lelem; | |
a0d0e21e | 5147 | |
82334630 | 5148 | if (GIMME_V != G_ARRAY) { |
9e59c36b | 5149 | if (lastlelem < firstlelem) { |
7da51ead | 5150 | EXTEND(SP, 1); |
9e59c36b TC |
5151 | *firstlelem = &PL_sv_undef; |
5152 | } | |
5153 | else { | |
5154 | I32 ix = SvIV(*lastlelem); | |
5155 | if (ix < 0) | |
5156 | ix += max; | |
5157 | if (ix < 0 || ix >= max) | |
5158 | *firstlelem = &PL_sv_undef; | |
5159 | else | |
5160 | *firstlelem = firstrelem[ix]; | |
5161 | } | |
5162 | SP = firstlelem; | |
5163 | RETURN; | |
a0d0e21e LW |
5164 | } |
5165 | ||
5166 | if (max == 0) { | |
5167 | SP = firstlelem - 1; | |
5168 | RETURN; | |
5169 | } | |
5170 | ||
5171 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 5172 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 5173 | if (ix < 0) |
a0d0e21e | 5174 | ix += max; |
c73bf8e3 HS |
5175 | if (ix < 0 || ix >= max) |
5176 | *lelem = &PL_sv_undef; | |
5177 | else { | |
c73bf8e3 | 5178 | if (!(*lelem = firstrelem[ix])) |
3280af22 | 5179 | *lelem = &PL_sv_undef; |
60779a30 | 5180 | else if (mod && SvPADTMP(*lelem)) { |
706a6ebc | 5181 | *lelem = firstrelem[ix] = sv_mortalcopy(*lelem); |
60779a30 | 5182 | } |
748a9306 | 5183 | } |
79072805 | 5184 | } |
cbce292e | 5185 | SP = lastlelem; |
79072805 LW |
5186 | RETURN; |
5187 | } | |
5188 | ||
a0d0e21e LW |
5189 | PP(pp_anonlist) |
5190 | { | |
20b7effb | 5191 | dSP; dMARK; |
1b6737cc | 5192 | const I32 items = SP - MARK; |
ad64d0ec | 5193 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
31476221 | 5194 | SP = MARK; |
6e449a3a MHM |
5195 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
5196 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
5197 | RETURN; |
5198 | } | |
5199 | ||
5200 | PP(pp_anonhash) | |
79072805 | 5201 | { |
20b7effb | 5202 | dSP; dMARK; dORIGMARK; |
67e67fd7 | 5203 | HV* const hv = newHV(); |
8d455b9f | 5204 | SV* const retval = sv_2mortal( PL_op->op_flags & OPf_SPECIAL |
67e67fd7 | 5205 | ? newRV_noinc(MUTABLE_SV(hv)) |
8d455b9f | 5206 | : MUTABLE_SV(hv) ); |
a0d0e21e LW |
5207 | |
5208 | while (MARK < SP) { | |
3ed356df FC |
5209 | SV * const key = |
5210 | (MARK++, SvGMAGICAL(*MARK) ? sv_mortalcopy(*MARK) : *MARK); | |
5211 | SV *val; | |
a0d0e21e | 5212 | if (MARK < SP) |
3ed356df FC |
5213 | { |
5214 | MARK++; | |
5215 | SvGETMAGIC(*MARK); | |
5216 | val = newSV(0); | |
d187b712 | 5217 | sv_setsv_nomg(val, *MARK); |
3ed356df | 5218 | } |
a2a5de95 | 5219 | else |
3ed356df | 5220 | { |
a2a5de95 | 5221 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
3ed356df FC |
5222 | val = newSV(0); |
5223 | } | |
f12c7020 | 5224 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 5225 | } |
a0d0e21e | 5226 | SP = ORIGMARK; |
8d455b9f | 5227 | XPUSHs(retval); |
79072805 LW |
5228 | RETURN; |
5229 | } | |
5230 | ||
a0d0e21e | 5231 | PP(pp_splice) |
79072805 | 5232 | { |
20b7effb | 5233 | dSP; dMARK; dORIGMARK; |
5cd408a2 | 5234 | int num_args = (SP - MARK); |
00576728 | 5235 | AV *ary = MUTABLE_AV(*++MARK); |
eb578fdb KW |
5236 | SV **src; |
5237 | SV **dst; | |
c70927a6 FC |
5238 | SSize_t i; |
5239 | SSize_t offset; | |
5240 | SSize_t length; | |
5241 | SSize_t newlen; | |
5242 | SSize_t after; | |
5243 | SSize_t diff; | |
ad64d0ec | 5244 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5245 | |
1b6737cc | 5246 | if (mg) { |
3e0cb5de | 5247 | return Perl_tied_method(aTHX_ SV_CONST(SPLICE), mark - 1, MUTABLE_SV(ary), mg, |
af71faff NC |
5248 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, |
5249 | sp - mark); | |
93965878 | 5250 | } |
79072805 | 5251 | |
a0d0e21e | 5252 | SP++; |
79072805 | 5253 | |
a0d0e21e | 5254 | if (++MARK < SP) { |
4ea561bc | 5255 | offset = i = SvIV(*MARK); |
a0d0e21e | 5256 | if (offset < 0) |
93965878 | 5257 | offset += AvFILLp(ary) + 1; |
84902520 | 5258 | if (offset < 0) |
cea2e8a9 | 5259 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
5260 | if (++MARK < SP) { |
5261 | length = SvIVx(*MARK++); | |
48cdf507 GA |
5262 | if (length < 0) { |
5263 | length += AvFILLp(ary) - offset + 1; | |
5264 | if (length < 0) | |
5265 | length = 0; | |
5266 | } | |
79072805 LW |
5267 | } |
5268 | else | |
a0d0e21e | 5269 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 5270 | } |
a0d0e21e LW |
5271 | else { |
5272 | offset = 0; | |
5273 | length = AvMAX(ary) + 1; | |
5274 | } | |
8cbc2e3b | 5275 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
5276 | if (num_args > 2) |
5277 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 5278 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 5279 | } |
93965878 | 5280 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
5281 | if (after < 0) { /* not that much array */ |
5282 | length += after; /* offset+length now in array */ | |
5283 | after = 0; | |
5284 | if (!AvALLOC(ary)) | |
5285 | av_extend(ary, 0); | |
5286 | } | |
5287 | ||
5288 | /* At this point, MARK .. SP-1 is our new LIST */ | |
5289 | ||
5290 | newlen = SP - MARK; | |
5291 | diff = newlen - length; | |
13d7cbc1 GS |
5292 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
5293 | av_reify(ary); | |
a0d0e21e | 5294 | |
50528de0 WL |
5295 | /* make new elements SVs now: avoid problems if they're from the array */ |
5296 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 5297 | SV * const h = *dst; |
f2b990bf | 5298 | *dst++ = newSVsv(h); |
50528de0 WL |
5299 | } |
5300 | ||
a0d0e21e | 5301 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 5302 | SV **tmparyval = NULL; |
a0d0e21e | 5303 | if (newlen) { |
a02a5408 | 5304 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 5305 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 5306 | } |
a0d0e21e LW |
5307 | |
5308 | MARK = ORIGMARK + 1; | |
82334630 | 5309 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
31c61add | 5310 | const bool real = cBOOL(AvREAL(ary)); |
a0d0e21e | 5311 | MEXTEND(MARK, length); |
31c61add | 5312 | if (real) |
bbce6d69 | 5313 | EXTEND_MORTAL(length); |
31c61add FC |
5314 | for (i = 0, dst = MARK; i < length; i++) { |
5315 | if ((*dst = AvARRAY(ary)[i+offset])) { | |
5316 | if (real) | |
486ec47a | 5317 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5318 | } |
31c61add FC |
5319 | else |
5320 | *dst = &PL_sv_undef; | |
5321 | dst++; | |
a0d0e21e LW |
5322 | } |
5323 | MARK += length - 1; | |
79072805 | 5324 | } |
a0d0e21e LW |
5325 | else { |
5326 | *MARK = AvARRAY(ary)[offset+length-1]; | |
5327 | if (AvREAL(ary)) { | |
d689ffdd | 5328 | sv_2mortal(*MARK); |
a0d0e21e LW |
5329 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
5330 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 5331 | } |
92b69f65 FC |
5332 | if (!*MARK) |
5333 | *MARK = &PL_sv_undef; | |
a0d0e21e | 5334 | } |
93965878 | 5335 | AvFILLp(ary) += diff; |
a0d0e21e LW |
5336 | |
5337 | /* pull up or down? */ | |
5338 | ||
5339 | if (offset < after) { /* easier to pull up */ | |
5340 | if (offset) { /* esp. if nothing to pull */ | |
5341 | src = &AvARRAY(ary)[offset-1]; | |
5342 | dst = src - diff; /* diff is negative */ | |
5343 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
5344 | *dst-- = *src--; | |
79072805 | 5345 | } |
a0d0e21e | 5346 | dst = AvARRAY(ary); |
9c6bc640 | 5347 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5348 | AvMAX(ary) += diff; |
5349 | } | |
5350 | else { | |
5351 | if (after) { /* anything to pull down? */ | |
5352 | src = AvARRAY(ary) + offset + length; | |
5353 | dst = src + diff; /* diff is negative */ | |
5354 | Move(src, dst, after, SV*); | |
79072805 | 5355 | } |
93965878 | 5356 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5357 | /* avoid later double free */ |
5358 | } | |
5359 | i = -diff; | |
5360 | while (i) | |
ce0d59fd | 5361 | dst[--i] = NULL; |
a0d0e21e LW |
5362 | |
5363 | if (newlen) { | |
50528de0 | 5364 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5365 | Safefree(tmparyval); |
5366 | } | |
5367 | } | |
5368 | else { /* no, expanding (or same) */ | |
d3961450 | 5369 | SV** tmparyval = NULL; |
a0d0e21e | 5370 | if (length) { |
a02a5408 | 5371 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5372 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5373 | } | |
5374 | ||
5375 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5376 | /* push up or down? */ |
a0d0e21e LW |
5377 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5378 | if (offset) { | |
5379 | src = AvARRAY(ary); | |
5380 | dst = src - diff; | |
5381 | Move(src, dst, offset, SV*); | |
79072805 | 5382 | } |
9c6bc640 | 5383 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5384 | AvMAX(ary) += diff; |
93965878 | 5385 | AvFILLp(ary) += diff; |
79072805 LW |
5386 | } |
5387 | else { | |
93965878 NIS |
5388 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5389 | av_extend(ary, AvFILLp(ary) + diff); | |
5390 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5391 | |
5392 | if (after) { | |
93965878 | 5393 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5394 | src = dst - diff; |
5395 | for (i = after; i; i--) { | |
5396 | *dst-- = *src--; | |
5397 | } | |
79072805 LW |
5398 | } |
5399 | } | |
a0d0e21e LW |
5400 | } |
5401 | ||
50528de0 WL |
5402 | if (newlen) { |
5403 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5404 | } |
50528de0 | 5405 | |
a0d0e21e | 5406 | MARK = ORIGMARK + 1; |
82334630 | 5407 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
a0d0e21e | 5408 | if (length) { |
31c61add FC |
5409 | const bool real = cBOOL(AvREAL(ary)); |
5410 | if (real) | |
bbce6d69 | 5411 | EXTEND_MORTAL(length); |
31c61add FC |
5412 | for (i = 0, dst = MARK; i < length; i++) { |
5413 | if ((*dst = tmparyval[i])) { | |
5414 | if (real) | |
486ec47a | 5415 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5416 | } |
31c61add FC |
5417 | else *dst = &PL_sv_undef; |
5418 | dst++; | |
79072805 LW |
5419 | } |
5420 | } | |
a0d0e21e LW |
5421 | MARK += length - 1; |
5422 | } | |
5423 | else if (length--) { | |
5424 | *MARK = tmparyval[length]; | |
5425 | if (AvREAL(ary)) { | |
d689ffdd | 5426 | sv_2mortal(*MARK); |
a0d0e21e LW |
5427 | while (length-- > 0) |
5428 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5429 | } |
92b69f65 FC |
5430 | if (!*MARK) |
5431 | *MARK = &PL_sv_undef; | |
79072805 | 5432 | } |
a0d0e21e | 5433 | else |
3280af22 | 5434 | *MARK = &PL_sv_undef; |
d3961450 | 5435 | Safefree(tmparyval); |
79072805 | 5436 | } |
474af990 FR |
5437 | |
5438 | if (SvMAGICAL(ary)) | |
5439 | mg_set(MUTABLE_SV(ary)); | |
5440 | ||
a0d0e21e | 5441 | SP = MARK; |
79072805 LW |
5442 | RETURN; |
5443 | } | |
5444 | ||
a0d0e21e | 5445 | PP(pp_push) |
79072805 | 5446 | { |
20b7effb | 5447 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5448 | AV * const ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5449 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5450 | |
1b6737cc | 5451 | if (mg) { |
ad64d0ec | 5452 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5453 | PUSHMARK(MARK); |
5454 | PUTBACK; | |
d343c3ef | 5455 | ENTER_with_name("call_PUSH"); |
3e0cb5de | 5456 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5457 | LEAVE_with_name("call_PUSH"); |
01072573 | 5458 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5459 | } |
a60c0954 | 5460 | else { |
a68090fe DM |
5461 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5462 | * only need to save locally, not on the save stack */ | |
5463 | U16 old_delaymagic = PL_delaymagic; | |
5464 | ||
cb077ed2 | 5465 | if (SvREADONLY(ary) && MARK < SP) Perl_croak_no_modify(); |
89c14e2e | 5466 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5467 | for (++MARK; MARK <= SP; MARK++) { |
3ed356df FC |
5468 | SV *sv; |
5469 | if (*MARK) SvGETMAGIC(*MARK); | |
5470 | sv = newSV(0); | |
a60c0954 | 5471 | if (*MARK) |
3ed356df | 5472 | sv_setsv_nomg(sv, *MARK); |
0a75904b | 5473 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5474 | } |
354b0578 | 5475 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5476 | mg_set(MUTABLE_SV(ary)); |
a68090fe | 5477 | PL_delaymagic = old_delaymagic; |
6eeabd23 VP |
5478 | } |
5479 | SP = ORIGMARK; | |
5480 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5481 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5482 | } |
79072805 LW |
5483 | RETURN; |
5484 | } | |
5485 | ||
b1c05ba5 | 5486 | /* also used for: pp_pop()*/ |
a0d0e21e | 5487 | PP(pp_shift) |
79072805 | 5488 | { |
39644a26 | 5489 | dSP; |
538f5756 | 5490 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
94f9945d | 5491 | ? MUTABLE_AV(GvAVn(PL_defgv)) : MUTABLE_AV(POPs); |
789b4bc9 | 5492 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5493 | EXTEND(SP, 1); |
c2b4a044 | 5494 | assert (sv); |
d689ffdd | 5495 | if (AvREAL(av)) |
a0d0e21e LW |
5496 | (void)sv_2mortal(sv); |
5497 | PUSHs(sv); | |
79072805 | 5498 | RETURN; |
79072805 LW |
5499 | } |
5500 | ||
a0d0e21e | 5501 | PP(pp_unshift) |
79072805 | 5502 | { |
20b7effb | 5503 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5504 | AV *ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5505 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5506 | |
1b6737cc | 5507 | if (mg) { |
ad64d0ec | 5508 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5509 | PUSHMARK(MARK); |
93965878 | 5510 | PUTBACK; |
d343c3ef | 5511 | ENTER_with_name("call_UNSHIFT"); |
36925d9e | 5512 | call_sv(SV_CONST(UNSHIFT),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5513 | LEAVE_with_name("call_UNSHIFT"); |
01072573 | 5514 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5515 | } |
a60c0954 | 5516 | else { |
a68090fe DM |
5517 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5518 | * only need to save locally, not on the save stack */ | |
5519 | U16 old_delaymagic = PL_delaymagic; | |
c70927a6 | 5520 | SSize_t i = 0; |
a68090fe | 5521 | |
a60c0954 | 5522 | av_unshift(ary, SP - MARK); |
39539141 | 5523 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5524 | while (MARK < SP) { |
1b6737cc | 5525 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5526 | (void)av_store(ary, i++, sv); |
5527 | } | |
39539141 DIM |
5528 | if (PL_delaymagic & DM_ARRAY_ISA) |
5529 | mg_set(MUTABLE_SV(ary)); | |
a68090fe | 5530 | PL_delaymagic = old_delaymagic; |
79072805 | 5531 | } |
a0d0e21e | 5532 | SP = ORIGMARK; |
6eeabd23 | 5533 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5534 | PUSHi( AvFILL(ary) + 1 ); |
5535 | } | |
79072805 | 5536 | RETURN; |
79072805 LW |
5537 | } |
5538 | ||
a0d0e21e | 5539 | PP(pp_reverse) |
79072805 | 5540 | { |
20b7effb | 5541 | dSP; dMARK; |
79072805 | 5542 | |
82334630 | 5543 | if (GIMME_V == G_ARRAY) { |
484c818f VP |
5544 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5545 | AV *av; | |
5546 | ||
5547 | /* See pp_sort() */ | |
5548 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5549 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5550 | av = MUTABLE_AV((*SP)); | |
5551 | /* In-place reversing only happens in void context for the array | |
5552 | * assignment. We don't need to push anything on the stack. */ | |
5553 | SP = MARK; | |
5554 | ||
5555 | if (SvMAGICAL(av)) { | |
c70927a6 | 5556 | SSize_t i, j; |
eb578fdb | 5557 | SV *tmp = sv_newmortal(); |
484c818f VP |
5558 | /* For SvCANEXISTDELETE */ |
5559 | HV *stash; | |
5560 | const MAGIC *mg; | |
5561 | bool can_preserve = SvCANEXISTDELETE(av); | |
5562 | ||
b9f2b683 | 5563 | for (i = 0, j = av_tindex(av); i < j; ++i, --j) { |
eb578fdb | 5564 | SV *begin, *end; |
484c818f VP |
5565 | |
5566 | if (can_preserve) { | |
5567 | if (!av_exists(av, i)) { | |
5568 | if (av_exists(av, j)) { | |
eb578fdb | 5569 | SV *sv = av_delete(av, j, 0); |
484c818f VP |
5570 | begin = *av_fetch(av, i, TRUE); |
5571 | sv_setsv_mg(begin, sv); | |
5572 | } | |
5573 | continue; | |
5574 | } | |
5575 | else if (!av_exists(av, j)) { | |
eb578fdb | 5576 | SV *sv = av_delete(av, i, 0); |
484c818f VP |
5577 | end = *av_fetch(av, j, TRUE); |
5578 | sv_setsv_mg(end, sv); | |
5579 | continue; | |
5580 | } | |
5581 | } | |
5582 | ||
5583 | begin = *av_fetch(av, i, TRUE); | |
5584 | end = *av_fetch(av, j, TRUE); | |
5585 | sv_setsv(tmp, begin); | |
5586 | sv_setsv_mg(begin, end); | |
5587 | sv_setsv_mg(end, tmp); | |
5588 | } | |
5589 | } | |
5590 | else { | |
5591 | SV **begin = AvARRAY(av); | |
484c818f | 5592 | |
95a26d8e VP |
5593 | if (begin) { |
5594 | SV **end = begin + AvFILLp(av); | |
5595 | ||
5596 | while (begin < end) { | |
eb578fdb | 5597 | SV * const tmp = *begin; |
95a26d8e VP |
5598 | *begin++ = *end; |
5599 | *end-- = tmp; | |
5600 | } | |
484c818f VP |
5601 | } |
5602 | } | |
5603 | } | |
5604 | else { | |
5605 | SV **oldsp = SP; | |
5606 | MARK++; | |
5607 | while (MARK < SP) { | |
eb578fdb | 5608 | SV * const tmp = *MARK; |
484c818f VP |
5609 | *MARK++ = *SP; |
5610 | *SP-- = tmp; | |
5611 | } | |
5612 | /* safe as long as stack cannot get extended in the above */ | |
5613 | SP = oldsp; | |
a0d0e21e | 5614 | } |
79072805 LW |
5615 | } |
5616 | else { | |
eb578fdb | 5617 | char *up; |
a0d0e21e LW |
5618 | dTARGET; |
5619 | STRLEN len; | |
79072805 | 5620 | |
7e2040f0 | 5621 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 5622 | if (SP - MARK > 1) |
3280af22 | 5623 | do_join(TARG, &PL_sv_no, MARK, SP); |
d5d91c1e DM |
5624 | else if (SP > MARK) |
5625 | sv_setsv(TARG, *SP); | |
5626 | else { | |
5627 | sv_setsv(TARG, DEFSV); | |
5628 | EXTEND(SP, 1); | |
1e21d011 B |
5629 | } |
5630 | ||
a0d0e21e LW |
5631 | up = SvPV_force(TARG, len); |
5632 | if (len > 1) { | |
19742f39 | 5633 | char *down; |
7e2040f0 | 5634 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5635 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5636 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5637 | while (s < send) { |
d742c382 | 5638 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5639 | s++; |
5640 | continue; | |
5641 | } | |
5642 | else { | |
4b88fb76 | 5643 | if (!utf8_to_uvchr_buf(s, send, 0)) |
a0dbb045 | 5644 | break; |
dfe13c55 | 5645 | up = (char*)s; |
a0ed51b3 | 5646 | s += UTF8SKIP(s); |
dfe13c55 | 5647 | down = (char*)(s - 1); |
a0dbb045 | 5648 | /* reverse this character */ |
a0ed51b3 | 5649 | while (down > up) { |
19742f39 | 5650 | const char tmp = *up; |
a0ed51b3 | 5651 | *up++ = *down; |
19742f39 | 5652 | *down-- = tmp; |
a0ed51b3 LW |
5653 | } |
5654 | } | |
5655 | } | |
5656 | up = SvPVX(TARG); | |
5657 | } | |
a0d0e21e LW |
5658 | down = SvPVX(TARG) + len - 1; |
5659 | while (down > up) { | |
19742f39 | 5660 | const char tmp = *up; |
a0d0e21e | 5661 | *up++ = *down; |
19742f39 | 5662 | *down-- = tmp; |
a0d0e21e | 5663 | } |
3aa33fe5 | 5664 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5665 | } |
a0d0e21e LW |
5666 | SP = MARK + 1; |
5667 | SETTARG; | |
79072805 | 5668 | } |
a0d0e21e | 5669 | RETURN; |
79072805 LW |
5670 | } |
5671 | ||
a0d0e21e | 5672 | PP(pp_split) |
79072805 | 5673 | { |
20b7effb | 5674 | dSP; dTARG; |
692044df DM |
5675 | AV *ary = ( (PL_op->op_private & OPpSPLIT_ASSIGN) /* @a = split */ |
5676 | && (PL_op->op_flags & OPf_STACKED)) /* @{expr} = split */ | |
5012eebe | 5677 | ? (AV *)POPs : NULL; |
eb578fdb | 5678 | IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5679 | SV * const sv = POPs; |
a0d0e21e | 5680 | STRLEN len; |
eb578fdb | 5681 | const char *s = SvPV_const(sv, len); |
1b6737cc | 5682 | const bool do_utf8 = DO_UTF8(sv); |
20ae58f7 | 5683 | const bool in_uni_8_bit = IN_UNI_8_BIT; |
727b7506 | 5684 | const char *strend = s + len; |
5012eebe | 5685 | PMOP *pm = cPMOPx(PL_op); |
eb578fdb KW |
5686 | REGEXP *rx; |
5687 | SV *dstr; | |
5688 | const char *m; | |
c70927a6 | 5689 | SSize_t iters = 0; |
d14578b8 KW |
5690 | const STRLEN slen = do_utf8 |
5691 | ? utf8_length((U8*)s, (U8*)strend) | |
5692 | : (STRLEN)(strend - s); | |
c70927a6 | 5693 | SSize_t maxiters = slen + 10; |
c1a7495a | 5694 | I32 trailing_empty = 0; |
727b7506 | 5695 | const char *orig; |
052a7c76 | 5696 | const IV origlimit = limit; |
a0d0e21e LW |
5697 | I32 realarray = 0; |
5698 | I32 base; | |
1c23e2bd | 5699 | const U8 gimme = GIMME_V; |
941446f6 | 5700 | bool gimme_scalar; |
692044df | 5701 | I32 oldsave = PL_savestack_ix; |
437d3b4e | 5702 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5703 | bool multiline = 0; |
b37c2d43 | 5704 | MAGIC *mg = NULL; |
79072805 | 5705 | |
aaa362c4 | 5706 | rx = PM_GETRE(pm); |
bbce6d69 | 5707 | |
a62b1201 | 5708 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
dbc200c5 | 5709 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5710 | |
692044df | 5711 | /* handle @ary = split(...) optimisation */ |
5012eebe DM |
5712 | if (PL_op->op_private & OPpSPLIT_ASSIGN) { |
5713 | if (!(PL_op->op_flags & OPf_STACKED)) { | |
692044df DM |
5714 | if (PL_op->op_private & OPpSPLIT_LEX) { |
5715 | if (PL_op->op_private & OPpLVAL_INTRO) | |
5716 | SAVECLEARSV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); | |
5012eebe | 5717 | ary = (AV *)PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff); |
692044df | 5718 | } |
5012eebe DM |
5719 | else { |
5720 | GV *gv = | |
971a9dd3 | 5721 | #ifdef USE_ITHREADS |
5012eebe | 5722 | MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); |
971a9dd3 | 5723 | #else |
5012eebe | 5724 | pm->op_pmreplrootu.op_pmtargetgv; |
20e98b0f | 5725 | #endif |
692044df DM |
5726 | if (PL_op->op_private & OPpLVAL_INTRO) |
5727 | ary = save_ary(gv); | |
5728 | else | |
5729 | ary = GvAVn(gv); | |
5012eebe | 5730 | } |
692044df DM |
5731 | /* skip anything pushed by OPpLVAL_INTRO above */ |
5732 | oldsave = PL_savestack_ix; | |
5012eebe DM |
5733 | } |
5734 | ||
a0d0e21e | 5735 | realarray = 1; |
8ec5e241 | 5736 | PUTBACK; |
a0d0e21e | 5737 | av_extend(ary,0); |
821956c5 | 5738 | (void)sv_2mortal(SvREFCNT_inc_simple_NN(sv)); |
a0d0e21e | 5739 | av_clear(ary); |
8ec5e241 | 5740 | SPAGAIN; |
ad64d0ec | 5741 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5742 | PUSHMARK(SP); |
ad64d0ec | 5743 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5744 | } |
5745 | else { | |
1c0b011c | 5746 | if (!AvREAL(ary)) { |
1b6737cc | 5747 | I32 i; |
1c0b011c | 5748 | AvREAL_on(ary); |
abff13bb | 5749 | AvREIFY_off(ary); |
1c0b011c | 5750 | for (i = AvFILLp(ary); i >= 0; i--) |
d14578b8 | 5751 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5752 | } |
5753 | /* temporarily switch stacks */ | |
8b7059b1 | 5754 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5755 | make_mortal = 0; |
1c0b011c | 5756 | } |
79072805 | 5757 | } |
5012eebe | 5758 | |
3280af22 | 5759 | base = SP - PL_stack_base; |
a0d0e21e | 5760 | orig = s; |
dbc200c5 | 5761 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e | 5762 | if (do_utf8) { |
d720149d | 5763 | while (s < strend && isSPACE_utf8_safe(s, strend)) |
613f191e TS |
5764 | s += UTF8SKIP(s); |
5765 | } | |
a62b1201 | 5766 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
d720149d | 5767 | while (s < strend && isSPACE_LC(*s)) |
bbce6d69 | 5768 | s++; |
5769 | } | |
20ae58f7 AC |
5770 | else if (in_uni_8_bit) { |
5771 | while (s < strend && isSPACE_L1(*s)) | |
5772 | s++; | |
5773 | } | |
bbce6d69 | 5774 | else { |
d720149d | 5775 | while (s < strend && isSPACE(*s)) |
bbce6d69 | 5776 | s++; |
5777 | } | |
a0d0e21e | 5778 | } |
73134a2e | 5779 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5780 | multiline = 1; |
c07a80fd | 5781 | } |
5782 | ||
941446f6 FC |
5783 | gimme_scalar = gimme == G_SCALAR && !ary; |
5784 | ||
a0d0e21e LW |
5785 | if (!limit) |
5786 | limit = maxiters + 2; | |
dbc200c5 | 5787 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5788 | while (--limit) { |
bbce6d69 | 5789 | m = s; |
8727f688 YO |
5790 | /* this one uses 'm' and is a negative test */ |
5791 | if (do_utf8) { | |
7a207065 | 5792 | while (m < strend && ! isSPACE_utf8_safe(m, strend) ) { |
613f191e | 5793 | const int t = UTF8SKIP(m); |
7a207065 | 5794 | /* isSPACE_utf8_safe returns FALSE for malform utf8 */ |
613f191e TS |
5795 | if (strend - m < t) |
5796 | m = strend; | |
5797 | else | |
5798 | m += t; | |
5799 | } | |
a62b1201 | 5800 | } |
d14578b8 KW |
5801 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5802 | { | |
8727f688 YO |
5803 | while (m < strend && !isSPACE_LC(*m)) |
5804 | ++m; | |
20ae58f7 AC |
5805 | } |
5806 | else if (in_uni_8_bit) { | |
5807 | while (m < strend && !isSPACE_L1(*m)) | |
5808 | ++m; | |
8727f688 YO |
5809 | } else { |
5810 | while (m < strend && !isSPACE(*m)) | |
5811 | ++m; | |
5812 | } | |
a0d0e21e LW |
5813 | if (m >= strend) |
5814 | break; | |
bbce6d69 | 5815 | |
c1a7495a BB |
5816 | if (gimme_scalar) { |
5817 | iters++; | |
5818 | if (m-s == 0) | |
5819 | trailing_empty++; | |
5820 | else | |
5821 | trailing_empty = 0; | |
5822 | } else { | |
5823 | dstr = newSVpvn_flags(s, m-s, | |
5824 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5825 | XPUSHs(dstr); | |
5826 | } | |
bbce6d69 | 5827 | |
613f191e TS |
5828 | /* skip the whitespace found last */ |
5829 | if (do_utf8) | |
5830 | s = m + UTF8SKIP(m); | |
5831 | else | |
5832 | s = m + 1; | |
5833 | ||
8727f688 YO |
5834 | /* this one uses 's' and is a positive test */ |
5835 | if (do_utf8) { | |
7a207065 | 5836 | while (s < strend && isSPACE_utf8_safe(s, strend) ) |
8727f688 | 5837 | s += UTF8SKIP(s); |
a62b1201 | 5838 | } |
d14578b8 KW |
5839 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5840 | { | |
8727f688 YO |
5841 | while (s < strend && isSPACE_LC(*s)) |
5842 | ++s; | |
20ae58f7 AC |
5843 | } |
5844 | else if (in_uni_8_bit) { | |
5845 | while (s < strend && isSPACE_L1(*s)) | |
5846 | ++s; | |
8727f688 YO |
5847 | } else { |
5848 | while (s < strend && isSPACE(*s)) | |
5849 | ++s; | |
5850 | } | |
79072805 LW |
5851 | } |
5852 | } | |
07bc277f | 5853 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5854 | while (--limit) { |
a6e20a40 AL |
5855 | for (m = s; m < strend && *m != '\n'; m++) |
5856 | ; | |
a0d0e21e LW |
5857 | m++; |
5858 | if (m >= strend) | |
5859 | break; | |
c1a7495a BB |
5860 | |
5861 | if (gimme_scalar) { | |
5862 | iters++; | |
5863 | if (m-s == 0) | |
5864 | trailing_empty++; | |
5865 | else | |
5866 | trailing_empty = 0; | |
5867 | } else { | |
5868 | dstr = newSVpvn_flags(s, m-s, | |
5869 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5870 | XPUSHs(dstr); | |
5871 | } | |
a0d0e21e LW |
5872 | s = m; |
5873 | } | |
5874 | } | |
07bc277f | 5875 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5876 | /* |
5877 | Pre-extend the stack, either the number of bytes or | |
5878 | characters in the string or a limited amount, triggered by: | |
5879 | ||
5880 | my ($x, $y) = split //, $str; | |
5881 | or | |
5882 | split //, $str, $i; | |
5883 | */ | |
c1a7495a | 5884 | if (!gimme_scalar) { |
052a7c76 DM |
5885 | const IV items = limit - 1; |
5886 | /* setting it to -1 will trigger a panic in EXTEND() */ | |
5887 | const SSize_t sslen = slen > SSize_t_MAX ? -1 : (SSize_t)slen; | |
5888 | if (items >=0 && items < sslen) | |
c1a7495a BB |
5889 | EXTEND(SP, items); |
5890 | else | |
052a7c76 | 5891 | EXTEND(SP, sslen); |
c1a7495a | 5892 | } |
640f820d | 5893 | |
e9515b0f AB |
5894 | if (do_utf8) { |
5895 | while (--limit) { | |
5896 | /* keep track of how many bytes we skip over */ | |
5897 | m = s; | |
640f820d | 5898 | s += UTF8SKIP(s); |
c1a7495a BB |
5899 | if (gimme_scalar) { |
5900 | iters++; | |
5901 | if (s-m == 0) | |
5902 | trailing_empty++; | |
5903 | else | |
5904 | trailing_empty = 0; | |
5905 | } else { | |
5906 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5907 | |
c1a7495a BB |
5908 | PUSHs(dstr); |
5909 | } | |
640f820d | 5910 | |
e9515b0f AB |
5911 | if (s >= strend) |
5912 | break; | |
5913 | } | |
5914 | } else { | |
5915 | while (--limit) { | |
c1a7495a BB |
5916 | if (gimme_scalar) { |
5917 | iters++; | |
5918 | } else { | |
5919 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5920 | |
e9515b0f | 5921 | |
c1a7495a BB |
5922 | if (make_mortal) |
5923 | sv_2mortal(dstr); | |
640f820d | 5924 | |
c1a7495a BB |
5925 | PUSHs(dstr); |
5926 | } | |
5927 | ||
5928 | s++; | |
e9515b0f AB |
5929 | |
5930 | if (s >= strend) | |
5931 | break; | |
5932 | } | |
640f820d AB |
5933 | } |
5934 | } | |
3c8556c3 | 5935 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5936 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5937 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
8e1490ee | 5938 | && !(RX_EXTFLAGS(rx) & RXf_IS_ANCHORED)) { |
07bc277f | 5939 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); |
f9f4320a | 5940 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5941 | |
07bc277f | 5942 | len = RX_MINLENRET(rx); |
3c8556c3 | 5943 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5944 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5945 | while (--limit) { |
a6e20a40 AL |
5946 | for (m = s; m < strend && *m != c; m++) |
5947 | ; | |
a0d0e21e LW |
5948 | if (m >= strend) |
5949 | break; | |
c1a7495a BB |
5950 | if (gimme_scalar) { |
5951 | iters++; | |
5952 | if (m-s == 0) | |
5953 | trailing_empty++; | |
5954 | else | |
5955 | trailing_empty = 0; | |
5956 | } else { | |
5957 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5958 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5959 | XPUSHs(dstr); |
5960 | } | |
93f04dac JH |
5961 | /* The rx->minlen is in characters but we want to step |
5962 | * s ahead by bytes. */ | |
1aa99e6b IH |
5963 | if (do_utf8) |
5964 | s = (char*)utf8_hop((U8*)m, len); | |
5965 | else | |
5966 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5967 | } |
5968 | } | |
5969 | else { | |
a0d0e21e | 5970 | while (s < strend && --limit && |
f722798b | 5971 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5972 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5973 | { |
c1a7495a BB |
5974 | if (gimme_scalar) { |
5975 | iters++; | |
5976 | if (m-s == 0) | |
5977 | trailing_empty++; | |
5978 | else | |
5979 | trailing_empty = 0; | |
5980 | } else { | |
5981 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5982 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5983 | XPUSHs(dstr); |
5984 | } | |
93f04dac JH |
5985 | /* The rx->minlen is in characters but we want to step |
5986 | * s ahead by bytes. */ | |
1aa99e6b IH |
5987 | if (do_utf8) |
5988 | s = (char*)utf8_hop((U8*)m, len); | |
5989 | else | |
5990 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 5991 | } |
463ee0b2 | 5992 | } |
463ee0b2 | 5993 | } |
a0d0e21e | 5994 | else { |
07bc277f | 5995 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 5996 | while (s < strend && --limit) |
bbce6d69 | 5997 | { |
1b6737cc | 5998 | I32 rex_return; |
080c2dec | 5999 | PUTBACK; |
d14578b8 | 6000 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1, |
c33e64f0 | 6001 | sv, NULL, 0); |
080c2dec | 6002 | SPAGAIN; |
1b6737cc | 6003 | if (rex_return == 0) |
080c2dec | 6004 | break; |
d9f97599 | 6005 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
6502e081 DM |
6006 | /* we never pass the REXEC_COPY_STR flag, so it should |
6007 | * never get copied */ | |
6008 | assert(!RX_MATCH_COPIED(rx)); | |
07bc277f | 6009 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
6010 | |
6011 | if (gimme_scalar) { | |
6012 | iters++; | |
6013 | if (m-s == 0) | |
6014 | trailing_empty++; | |
6015 | else | |
6016 | trailing_empty = 0; | |
6017 | } else { | |
6018 | dstr = newSVpvn_flags(s, m-s, | |
6019 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6020 | XPUSHs(dstr); | |
6021 | } | |
07bc277f | 6022 | if (RX_NPARENS(rx)) { |
1b6737cc | 6023 | I32 i; |
07bc277f NC |
6024 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
6025 | s = RX_OFFS(rx)[i].start + orig; | |
6026 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
6027 | |
6028 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
6029 | parens that didn't match -- they should be set to | |
6030 | undef, not the empty string */ | |
c1a7495a BB |
6031 | if (gimme_scalar) { |
6032 | iters++; | |
6033 | if (m-s == 0) | |
6034 | trailing_empty++; | |
6035 | else | |
6036 | trailing_empty = 0; | |
6037 | } else { | |
6038 | if (m >= orig && s >= orig) { | |
6039 | dstr = newSVpvn_flags(s, m-s, | |
6040 | (do_utf8 ? SVf_UTF8 : 0) | |
6041 | | make_mortal); | |
6042 | } | |
6043 | else | |
6044 | dstr = &PL_sv_undef; /* undef, not "" */ | |
6045 | XPUSHs(dstr); | |
748a9306 | 6046 | } |
c1a7495a | 6047 | |
a0d0e21e LW |
6048 | } |
6049 | } | |
07bc277f | 6050 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 6051 | } |
79072805 | 6052 | } |
8ec5e241 | 6053 | |
c1a7495a BB |
6054 | if (!gimme_scalar) { |
6055 | iters = (SP - PL_stack_base) - base; | |
6056 | } | |
a0d0e21e | 6057 | if (iters > maxiters) |
cea2e8a9 | 6058 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 6059 | |
a0d0e21e LW |
6060 | /* keep field after final delim? */ |
6061 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
6062 | if (!gimme_scalar) { |
6063 | const STRLEN l = strend - s; | |
6064 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6065 | XPUSHs(dstr); | |
6066 | } | |
a0d0e21e | 6067 | iters++; |
79072805 | 6068 | } |
a0d0e21e | 6069 | else if (!origlimit) { |
c1a7495a BB |
6070 | if (gimme_scalar) { |
6071 | iters -= trailing_empty; | |
6072 | } else { | |
6073 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
6074 | if (TOPs && !make_mortal) | |
6075 | sv_2mortal(TOPs); | |
71ca73e5 | 6076 | *SP-- = NULL; |
c1a7495a BB |
6077 | iters--; |
6078 | } | |
89900bd3 | 6079 | } |
a0d0e21e | 6080 | } |
8ec5e241 | 6081 | |
8b7059b1 DM |
6082 | PUTBACK; |
6083 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
6084 | SPAGAIN; | |
a0d0e21e | 6085 | if (realarray) { |
8ec5e241 | 6086 | if (!mg) { |
1c0b011c NIS |
6087 | if (SvSMAGICAL(ary)) { |
6088 | PUTBACK; | |
ad64d0ec | 6089 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
6090 | SPAGAIN; |
6091 | } | |
6092 | if (gimme == G_ARRAY) { | |
6093 | EXTEND(SP, iters); | |
6094 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
6095 | SP += iters; | |
6096 | RETURN; | |
6097 | } | |
8ec5e241 | 6098 | } |
1c0b011c | 6099 | else { |
fb73857a | 6100 | PUTBACK; |
d343c3ef | 6101 | ENTER_with_name("call_PUSH"); |
36925d9e | 6102 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 6103 | LEAVE_with_name("call_PUSH"); |
fb73857a | 6104 | SPAGAIN; |
8ec5e241 | 6105 | if (gimme == G_ARRAY) { |
c70927a6 | 6106 | SSize_t i; |
8ec5e241 NIS |
6107 | /* EXTEND should not be needed - we just popped them */ |
6108 | EXTEND(SP, iters); | |
6109 | for (i=0; i < iters; i++) { | |
6110 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 6111 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 6112 | } |
1c0b011c NIS |
6113 | RETURN; |
6114 | } | |
a0d0e21e LW |
6115 | } |
6116 | } | |
6117 | else { | |
6118 | if (gimme == G_ARRAY) | |
6119 | RETURN; | |
6120 | } | |
7f18b612 YST |
6121 | |
6122 | GETTARGET; | |
02c161ef | 6123 | XPUSHi(iters); |
7f18b612 | 6124 | RETURN; |
79072805 | 6125 | } |
85e6fe83 | 6126 | |
c5917253 NC |
6127 | PP(pp_once) |
6128 | { | |
6129 | dSP; | |
6130 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
6131 | ||
6132 | if (SvPADSTALE(sv)) { | |
6133 | /* First time. */ | |
6134 | SvPADSTALE_off(sv); | |
6135 | RETURNOP(cLOGOP->op_other); | |
6136 | } | |
6137 | RETURNOP(cLOGOP->op_next); | |
6138 | } | |
6139 | ||
c0329465 MB |
6140 | PP(pp_lock) |
6141 | { | |
39644a26 | 6142 | dSP; |
c0329465 | 6143 | dTOPss; |
e55aaa0e | 6144 | SV *retsv = sv; |
68795e93 | 6145 | SvLOCK(sv); |
f79aa60b FC |
6146 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
6147 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
6148 | retsv = refto(retsv); |
6149 | } | |
6150 | SETs(retsv); | |
c0329465 MB |
6151 | RETURN; |
6152 | } | |
a863c7d1 | 6153 | |
65bca31a | 6154 | |
10088f56 | 6155 | /* used for: pp_padany(), pp_custom(); plus any system ops |
b1c05ba5 DM |
6156 | * that aren't implemented on a particular platform */ |
6157 | ||
65bca31a NC |
6158 | PP(unimplemented_op) |
6159 | { | |
361ed549 NC |
6160 | const Optype op_type = PL_op->op_type; |
6161 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
6162 | with out of range op numbers - it only "special" cases op_custom. | |
6163 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
6164 | if we get here for a custom op then that means that the custom op didn't | |
6165 | have an implementation. Given that OP_NAME() looks up the custom op | |
6166 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
6167 | registers &PL_unimplemented_op as the address of their custom op. | |
6168 | NULL doesn't generate a useful error message. "custom" does. */ | |
6169 | const char *const name = op_type >= OP_max | |
6170 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
6171 | if(OP_IS_SOCKET(op_type)) |
6172 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 6173 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
6174 | } |
6175 | ||
bea284c8 FC |
6176 | static void |
6177 | S_maybe_unwind_defav(pTHX) | |
6178 | { | |
6179 | if (CX_CUR()->cx_type & CXp_HASARGS) { | |
6180 | PERL_CONTEXT *cx = CX_CUR(); | |
6181 | ||
6182 | assert(CxHASARGS(cx)); | |
6183 | cx_popsub_args(cx); | |
6184 | cx->cx_type &= ~CXp_HASARGS; | |
6185 | } | |
6186 | } | |
6187 | ||
deb8a388 FC |
6188 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
6189 | PP(pp_coreargs) | |
6190 | { | |
6191 | dSP; | |
7fa5bd9b | 6192 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
498a02d8 | 6193 | int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0; |
7fa5bd9b | 6194 | AV * const at_ = GvAV(PL_defgv); |
0e80230d FC |
6195 | SV **svp = at_ ? AvARRAY(at_) : NULL; |
6196 | I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0; | |
7fa5bd9b | 6197 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 6198 | bool seen_question = 0; |
7fa5bd9b | 6199 | const char *err = NULL; |
3e6568b4 | 6200 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 6201 | |
46e00a91 FC |
6202 | /* Count how many args there are first, to get some idea how far to |
6203 | extend the stack. */ | |
7fa5bd9b | 6204 | while (oa) { |
bf0571fd | 6205 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 6206 | maxargs++; |
46e00a91 FC |
6207 | if (oa & OA_OPTIONAL) seen_question = 1; |
6208 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
6209 | oa >>= 4; |
6210 | } | |
6211 | ||
6212 | if(numargs < minargs) err = "Not enough"; | |
6213 | else if(numargs > maxargs) err = "Too many"; | |
6214 | if (err) | |
6215 | /* diag_listed_as: Too many arguments for %s */ | |
6216 | Perl_croak(aTHX_ | |
6217 | "%s arguments for %s", err, | |
2a90c7c6 | 6218 | opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv) |
7fa5bd9b FC |
6219 | ); |
6220 | ||
6221 | /* Reset the stack pointer. Without this, we end up returning our own | |
6222 | arguments in list context, in addition to the values we are supposed | |
6223 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 6224 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b | 6225 | nextstate. */ |
4ebe6e95 | 6226 | SP = PL_stack_base + CX_CUR()->blk_oldsp; |
7fa5bd9b | 6227 | |
46e00a91 FC |
6228 | if(!maxargs) RETURN; |
6229 | ||
bf0571fd FC |
6230 | /* We do this here, rather than with a separate pushmark op, as it has |
6231 | to come in between two things this function does (stack reset and | |
6232 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 6233 | if (pushmark) { |
bf0571fd FC |
6234 | PUTBACK; |
6235 | (void)Perl_pp_pushmark(aTHX); | |
6236 | } | |
6237 | ||
6238 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 6239 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
6240 | |
6241 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 6242 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 6243 | whicharg++; |
46e00a91 FC |
6244 | switch (oa & 7) { |
6245 | case OA_SCALAR: | |
1efec5ed | 6246 | try_defsv: |
d6d78e19 | 6247 | if (!numargs && defgv && whicharg == minargs + 1) { |
195eefec | 6248 | PUSHs(DEFSV); |
d6d78e19 FC |
6249 | } |
6250 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 6251 | break; |
bf0571fd FC |
6252 | case OA_LIST: |
6253 | while (numargs--) { | |
6254 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
6255 | svp++; | |
6256 | } | |
6257 | RETURN; | |
bea284c8 FC |
6258 | case OA_AVREF: |
6259 | if (!numargs) { | |
6260 | GV *gv; | |
6261 | if (CvUNIQUE(find_runcv_where(FIND_RUNCV_level_eq,1,NULL))) | |
6262 | gv = PL_argvgv; | |
6263 | else { | |
6264 | S_maybe_unwind_defav(aTHX); | |
6265 | gv = PL_defgv; | |
6266 | } | |
6267 | PUSHs((SV *)GvAVn(gv)); | |
6268 | break; | |
6269 | } | |
6270 | if (!svp || !*svp || !SvROK(*svp) | |
6271 | || SvTYPE(SvRV(*svp)) != SVt_PVAV) | |
6272 | DIE(aTHX_ | |
6273 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
6274 | "Type of arg %d to &CORE::%s must be array reference", | |
6275 | whicharg, PL_op_desc[opnum] | |
6276 | ); | |
6277 | PUSHs(SvRV(*svp)); | |
6278 | break; | |
19c481f4 FC |
6279 | case OA_HVREF: |
6280 | if (!svp || !*svp || !SvROK(*svp) | |
73665bc4 FC |
6281 | || ( SvTYPE(SvRV(*svp)) != SVt_PVHV |
6282 | && ( opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6283 | || SvTYPE(SvRV(*svp)) != SVt_PVAV ))) | |
19c481f4 FC |
6284 | DIE(aTHX_ |
6285 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
73665bc4 FC |
6286 | "Type of arg %d to &CORE::%s must be hash%s reference", |
6287 | whicharg, PL_op_desc[opnum], | |
6288 | opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6289 | ? "" | |
6290 | : " or array" | |
19c481f4 FC |
6291 | ); |
6292 | PUSHs(SvRV(*svp)); | |
6293 | break; | |
c931b036 | 6294 | case OA_FILEREF: |
30901a8a FC |
6295 | if (!numargs) PUSHs(NULL); |
6296 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
6297 | /* no magic here, as the prototype will have added an extra |
6298 | refgen and we just want what was there before that */ | |
6299 | PUSHs(SvRV(*svp)); | |
6300 | else { | |
6301 | const bool constr = PL_op->op_private & whicharg; | |
6302 | PUSHs(S_rv2gv(aTHX_ | |
6303 | svp && *svp ? *svp : &PL_sv_undef, | |
b54f893d | 6304 | constr, cBOOL(CopHINTS_get(PL_curcop) & HINT_STRICT_REFS), |
c931b036 FC |
6305 | !constr |
6306 | )); | |
6307 | } | |
6308 | break; | |
c72a5629 | 6309 | case OA_SCALARREF: |
1efec5ed FC |
6310 | if (!numargs) goto try_defsv; |
6311 | else { | |
17008668 FC |
6312 | const bool wantscalar = |
6313 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 6314 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
6315 | /* We have to permit globrefs even for the \$ proto, as |
6316 | *foo is indistinguishable from ${\*foo}, and the proto- | |
6317 | type permits the latter. */ | |
6318 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae | 6319 | wantscalar ? SVt_PVLV |
46bef06f FC |
6320 | : opnum == OP_LOCK || opnum == OP_UNDEF |
6321 | ? SVt_PVCV | |
efe889ae | 6322 | : SVt_PVHV |
17008668 | 6323 | ) |
c72a5629 FC |
6324 | ) |
6325 | DIE(aTHX_ | |
17008668 | 6326 | "Type of arg %d to &CORE::%s must be %s", |
46bef06f | 6327 | whicharg, PL_op_name[opnum], |
17008668 FC |
6328 | wantscalar |
6329 | ? "scalar reference" | |
46bef06f | 6330 | : opnum == OP_LOCK || opnum == OP_UNDEF |
efe889ae FC |
6331 | ? "reference to one of [$@%&*]" |
6332 | : "reference to one of [$@%*]" | |
c72a5629 FC |
6333 | ); |
6334 | PUSHs(SvRV(*svp)); | |
bea284c8 | 6335 | if (opnum == OP_UNDEF && SvRV(*svp) == (SV *)PL_defgv) { |
88bb468b | 6336 | /* Undo @_ localisation, so that sub exit does not undo |
04e686b8 | 6337 | part of our undeffing. */ |
bea284c8 | 6338 | S_maybe_unwind_defav(aTHX); |
88bb468b | 6339 | } |
17008668 | 6340 | } |
1efec5ed | 6341 | break; |
46e00a91 | 6342 | default: |
46e00a91 FC |
6343 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
6344 | } | |
6345 | oa = oa >> 4; | |
6346 | } | |
6347 | ||
deb8a388 FC |
6348 | RETURN; |
6349 | } | |
6350 | ||
a2232057 DM |
6351 | /* Implement CORE::keys(),values(),each(). |
6352 | * | |
6353 | * We won't know until run-time whether the arg is an array or hash, | |
6354 | * so this op calls | |
6355 | * | |
6356 | * pp_keys/pp_values/pp_each | |
6357 | * or | |
6358 | * pp_akeys/pp_avalues/pp_aeach | |
6359 | * | |
6360 | * as appropriate (or whatever pp function actually implements the OP_FOO | |
6361 | * functionality for each FOO). | |
6362 | */ | |
6363 | ||
88101882 FC |
6364 | PP(pp_avhvswitch) |
6365 | { | |
a73158aa | 6366 | dVAR; dSP; |
73665bc4 FC |
6367 | return PL_ppaddr[ |
6368 | (SvTYPE(TOPs) == SVt_PVAV ? OP_AEACH : OP_EACH) | |
e1e26374 | 6369 | + (PL_op->op_private & OPpAVHVSWITCH_MASK) |
73665bc4 | 6370 | ](aTHX); |
88101882 FC |
6371 | } |
6372 | ||
84ed0108 FC |
6373 | PP(pp_runcv) |
6374 | { | |
6375 | dSP; | |
6376 | CV *cv; | |
6377 | if (PL_op->op_private & OPpOFFBYONE) { | |
db4cf31d | 6378 | cv = find_runcv_where(FIND_RUNCV_level_eq, 1, NULL); |
84ed0108 FC |
6379 | } |
6380 | else cv = find_runcv(NULL); | |
e157a82b | 6381 | XPUSHs(CvEVAL(cv) ? &PL_sv_undef : sv_2mortal(newRV((SV *)cv))); |
84ed0108 FC |
6382 | RETURN; |
6383 | } | |
6384 | ||
05a34802 | 6385 | static void |
2331e434 | 6386 | S_localise_aelem_lval(pTHX_ AV * const av, SV * const keysv, |
05a34802 FC |
6387 | const bool can_preserve) |
6388 | { | |
2331e434 | 6389 | const SSize_t ix = SvIV(keysv); |
05a34802 FC |
6390 | if (can_preserve ? av_exists(av, ix) : TRUE) { |
6391 | SV ** const svp = av_fetch(av, ix, 1); | |
6392 | if (!svp || !*svp) | |
6393 | Perl_croak(aTHX_ PL_no_aelem, ix); | |
6394 | save_aelem(av, ix, svp); | |
6395 | } | |
6396 | else | |
6397 | SAVEADELETE(av, ix); | |
6398 | } | |
6399 | ||
5f94141d FC |
6400 | static void |
6401 | S_localise_helem_lval(pTHX_ HV * const hv, SV * const keysv, | |
6402 | const bool can_preserve) | |
6403 | { | |
6404 | if (can_preserve ? hv_exists_ent(hv, keysv, 0) : TRUE) { | |
6405 | HE * const he = hv_fetch_ent(hv, keysv, 1, 0); | |
6406 | SV ** const svp = he ? &HeVAL(he) : NULL; | |
6407 | if (!svp || !*svp) | |
6408 | Perl_croak(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
6409 | save_helem_flags(hv, keysv, svp, 0); | |
6410 | } | |
6411 | else | |
6412 | SAVEHDELETE(hv, keysv); | |
6413 | } | |
6414 | ||
9782ce69 FC |
6415 | static void |
6416 | S_localise_gv_slot(pTHX_ GV *gv, U8 type) | |
6417 | { | |
6418 | if (type == OPpLVREF_SV) { | |
6419 | save_pushptrptr(gv, SvREFCNT_inc_simple(GvSV(gv)), SAVEt_GVSV); | |
6420 | GvSV(gv) = 0; | |
6421 | } | |
6422 | else if (type == OPpLVREF_AV) | |
6423 | /* XXX Inefficient, as it creates a new AV, which we are | |
6424 | about to clobber. */ | |
6425 | save_ary(gv); | |
6426 | else { | |
6427 | assert(type == OPpLVREF_HV); | |
6428 | /* XXX Likewise inefficient. */ | |
6429 | save_hash(gv); | |
6430 | } | |
6431 | } | |
6432 | ||
6433 | ||
254da51f FC |
6434 | PP(pp_refassign) |
6435 | { | |
4fec8804 | 6436 | dSP; |
6102323a | 6437 | SV * const key = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
d8a875d9 | 6438 | SV * const left = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
4fec8804 | 6439 | dTOPss; |
3f114923 | 6440 | const char *bad = NULL; |
ac0da85a | 6441 | const U8 type = PL_op->op_private & OPpLVREF_TYPE; |
4fec8804 | 6442 | if (!SvROK(sv)) DIE(aTHX_ "Assigned value is not a reference"); |
ac0da85a | 6443 | switch (type) { |
3f114923 FC |
6444 | case OPpLVREF_SV: |
6445 | if (SvTYPE(SvRV(sv)) > SVt_PVLV) | |
6446 | bad = " SCALAR"; | |
6447 | break; | |
6448 | case OPpLVREF_AV: | |
6449 | if (SvTYPE(SvRV(sv)) != SVt_PVAV) | |
6450 | bad = "n ARRAY"; | |
6451 | break; | |
6452 | case OPpLVREF_HV: | |
6453 | if (SvTYPE(SvRV(sv)) != SVt_PVHV) | |
6454 | bad = " HASH"; | |
6455 | break; | |
6456 | case OPpLVREF_CV: | |
6457 | if (SvTYPE(SvRV(sv)) != SVt_PVCV) | |
6458 | bad = " CODE"; | |
6459 | } | |
6460 | if (bad) | |
1f8155a2 | 6461 | /* diag_listed_as: Assigned value is not %s reference */ |
3f114923 | 6462 | DIE(aTHX_ "Assigned value is not a%s reference", bad); |
b943805e JH |
6463 | { |
6464 | MAGIC *mg; | |
6465 | HV *stash; | |
d8a875d9 FC |
6466 | switch (left ? SvTYPE(left) : 0) { |
6467 | case 0: | |
cf5d2d91 FC |
6468 | { |
6469 | SV * const old = PAD_SV(ARGTARG); | |
d8a875d9 | 6470 | PAD_SETSV(ARGTARG, SvREFCNT_inc_NN(SvRV(sv))); |
cf5d2d91 | 6471 | SvREFCNT_dec(old); |
3ad7d304 FC |
6472 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpPAD_STATE)) |
6473 | == OPpLVAL_INTRO) | |
fc048fcf | 6474 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
d8a875d9 | 6475 | break; |
cf5d2d91 | 6476 | } |
d8a875d9 | 6477 | case SVt_PVGV: |
2a57afb1 | 6478 | if (PL_op->op_private & OPpLVAL_INTRO) { |
9782ce69 | 6479 | S_localise_gv_slot(aTHX_ (GV *)left, type); |
2a57afb1 | 6480 | } |
d8a875d9 FC |
6481 | gv_setref(left, sv); |
6482 | SvSETMAGIC(left); | |
6102323a FC |
6483 | break; |
6484 | case SVt_PVAV: | |
69a23520 | 6485 | assert(key); |
40d2b828 | 6486 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
2331e434 | 6487 | S_localise_aelem_lval(aTHX_ (AV *)left, key, |
05a34802 | 6488 | SvCANEXISTDELETE(left)); |
40d2b828 | 6489 | } |
6102323a FC |
6490 | av_store((AV *)left, SvIV(key), SvREFCNT_inc_simple_NN(SvRV(sv))); |
6491 | break; | |
5f94141d | 6492 | case SVt_PVHV: |
69a23520 JH |
6493 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
6494 | assert(key); | |
5f94141d FC |
6495 | S_localise_helem_lval(aTHX_ (HV *)left, key, |
6496 | SvCANEXISTDELETE(left)); | |
69a23520 | 6497 | } |
7fcb36d5 | 6498 | (void)hv_store_ent((HV *)left, key, SvREFCNT_inc_simple_NN(SvRV(sv)), 0); |
d8a875d9 | 6499 | } |
4fec8804 FC |
6500 | if (PL_op->op_flags & OPf_MOD) |
6501 | SETs(sv_2mortal(newSVsv(sv))); | |
6502 | /* XXX else can weak references go stale before they are read, e.g., | |
6503 | in leavesub? */ | |
6504 | RETURN; | |
b943805e | 6505 | } |
254da51f FC |
6506 | } |
6507 | ||
4c5bab50 FC |
6508 | PP(pp_lvref) |
6509 | { | |
26a50d99 FC |
6510 | dSP; |
6511 | SV * const ret = sv_2mortal(newSV_type(SVt_PVMG)); | |
6102323a | 6512 | SV * const elem = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
2a57afb1 | 6513 | SV * const arg = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
9782ce69 FC |
6514 | MAGIC * const mg = sv_magicext(ret, arg, PERL_MAGIC_lvref, |
6515 | &PL_vtbl_lvref, (char *)elem, | |
23270f96 | 6516 | elem ? HEf_SVKEY : (I32)ARGTARG); |
9782ce69 | 6517 | mg->mg_private = PL_op->op_private; |
d39c26a6 FC |
6518 | if (PL_op->op_private & OPpLVREF_ITER) |
6519 | mg->mg_flags |= MGf_PERSIST; | |
9846cd95 | 6520 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
40d2b828 | 6521 | if (elem) { |
38bb0011 JH |
6522 | MAGIC *mg; |
6523 | HV *stash; | |
6524 | assert(arg); | |
6525 | { | |
6526 | const bool can_preserve = SvCANEXISTDELETE(arg); | |
6527 | if (SvTYPE(arg) == SVt_PVAV) | |
6528 | S_localise_aelem_lval(aTHX_ (AV *)arg, elem, can_preserve); | |
6529 | else | |
6530 | S_localise_helem_lval(aTHX_ (HV *)arg, elem, can_preserve); | |
6531 | } | |
40d2b828 FC |
6532 | } |
6533 | else if (arg) { | |
9782ce69 FC |
6534 | S_localise_gv_slot(aTHX_ (GV *)arg, |
6535 | PL_op->op_private & OPpLVREF_TYPE); | |
2a57afb1 | 6536 | } |
3ad7d304 | 6537 | else if (!(PL_op->op_private & OPpPAD_STATE)) |
c146a62a | 6538 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
1199b01a | 6539 | } |
c146a62a FC |
6540 | XPUSHs(ret); |
6541 | RETURN; | |
4c5bab50 | 6542 | } |
84ed0108 | 6543 | |
16b99412 FC |
6544 | PP(pp_lvrefslice) |
6545 | { | |
a95dad8a | 6546 | dSP; dMARK; |
0ca7b7f7 FC |
6547 | AV * const av = (AV *)POPs; |
6548 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
6549 | bool can_preserve = FALSE; | |
6550 | ||
9846cd95 | 6551 | if (UNLIKELY(localizing)) { |
0ca7b7f7 FC |
6552 | MAGIC *mg; |
6553 | HV *stash; | |
6554 | SV **svp; | |
6555 | ||
6556 | can_preserve = SvCANEXISTDELETE(av); | |
6557 | ||
6558 | if (SvTYPE(av) == SVt_PVAV) { | |
6559 | SSize_t max = -1; | |
6560 | ||
6561 | for (svp = MARK + 1; svp <= SP; svp++) { | |
6562 | const SSize_t elem = SvIV(*svp); | |
6563 | if (elem > max) | |
6564 | max = elem; | |
6565 | } | |
6566 | if (max > AvMAX(av)) | |
6567 | av_extend(av, max); | |
6568 | } | |
6569 | } | |
6570 | ||
6571 | while (++MARK <= SP) { | |
6572 | SV * const elemsv = *MARK; | |
5f94141d | 6573 | if (SvTYPE(av) == SVt_PVAV) |
2331e434 | 6574 | S_localise_aelem_lval(aTHX_ av, elemsv, can_preserve); |
5f94141d FC |
6575 | else |
6576 | S_localise_helem_lval(aTHX_ (HV *)av, elemsv, can_preserve); | |
0ca7b7f7 FC |
6577 | *MARK = sv_2mortal(newSV_type(SVt_PVMG)); |
6578 | sv_magic(*MARK,(SV *)av,PERL_MAGIC_lvref,(char *)elemsv,HEf_SVKEY); | |
6579 | } | |
6580 | RETURN; | |
16b99412 FC |
6581 | } |
6582 | ||
2882b3ff FC |
6583 | PP(pp_lvavref) |
6584 | { | |
bdaf10a5 FC |
6585 | if (PL_op->op_flags & OPf_STACKED) |
6586 | Perl_pp_rv2av(aTHX); | |
6587 | else | |
6588 | Perl_pp_padav(aTHX); | |
6589 | { | |
6590 | dSP; | |
6591 | dTOPss; | |
6592 | SETs(0); /* special alias marker that aassign recognises */ | |
6593 | XPUSHs(sv); | |
6594 | RETURN; | |
6595 | } | |
2882b3ff FC |
6596 | } |
6597 | ||
b77472f9 FC |
6598 | PP(pp_anonconst) |
6599 | { | |
6600 | dSP; | |
6601 | dTOPss; | |
6602 | SETs(sv_2mortal((SV *)newCONSTSUB(SvTYPE(CopSTASH(PL_curcop))==SVt_PVHV | |
6603 | ? CopSTASH(PL_curcop) | |
6604 | : NULL, | |
6605 | NULL, SvREFCNT_inc_simple_NN(sv)))); | |
6606 | RETURN; | |
6607 | } | |
6608 | ||
4fa06845 DM |
6609 | |
6610 | /* process one subroutine argument - typically when the sub has a signature: | |
6611 | * introduce PL_curpad[op_targ] and assign to it the value | |
6612 | * for $: (OPf_STACKED ? *sp : $_[N]) | |
6613 | * for @/%: @_[N..$#_] | |
6614 | * | |
6615 | * It's equivalent to | |
6616 | * my $foo = $_[N]; | |
6617 | * or | |
6618 | * my $foo = (value-on-stack) | |
6619 | * or | |
6620 | * my @foo = @_[N..$#_] | |
6621 | * etc | |
4fa06845 DM |
6622 | */ |
6623 | ||
6624 | PP(pp_argelem) | |
6625 | { | |
6626 | dTARG; | |
6627 | SV *val; | |
6628 | SV ** padentry; | |
6629 | OP *o = PL_op; | |
6630 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6631 | IV ix = PTR2IV(cUNOP_AUXo->op_aux); |
4fa06845 | 6632 | IV argc; |
4fa06845 DM |
6633 | |
6634 | /* do 'my $var, @var or %var' action */ | |
6635 | padentry = &(PAD_SVl(o->op_targ)); | |
6636 | save_clearsv(padentry); | |
6637 | targ = *padentry; | |
6638 | ||
6639 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_SV) { | |
6640 | if (o->op_flags & OPf_STACKED) { | |
6641 | dSP; | |
6642 | val = POPs; | |
6643 | PUTBACK; | |
6644 | } | |
6645 | else { | |
f6ca42c7 | 6646 | SV **svp; |
4fa06845 | 6647 | /* should already have been checked */ |
f6ca42c7 | 6648 | assert(ix >= 0); |
6daeaaa3 DM |
6649 | #if IVSIZE > PTRSIZE |
6650 | assert(ix <= SSize_t_MAX); | |
6651 | #endif | |
f6ca42c7 DM |
6652 | |
6653 | svp = av_fetch(defav, ix, FALSE); | |
6654 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 DM |
6655 | } |
6656 | ||
6657 | /* $var = $val */ | |
6658 | ||
6659 | /* cargo-culted from pp_sassign */ | |
6660 | assert(TAINTING_get || !TAINT_get); | |
6661 | if (UNLIKELY(TAINT_get) && !SvTAINTED(val)) | |
6662 | TAINT_NOT; | |
6663 | ||
f6ca42c7 | 6664 | SvSetMagicSV(targ, val); |
4fa06845 DM |
6665 | return o->op_next; |
6666 | } | |
6667 | ||
6668 | /* must be AV or HV */ | |
6669 | ||
6670 | assert(!(o->op_flags & OPf_STACKED)); | |
f6ca42c7 | 6671 | argc = ((IV)AvFILL(defav) + 1) - ix; |
4fa06845 DM |
6672 | |
6673 | /* This is a copy of the relevant parts of pp_aassign(). | |
4fa06845 DM |
6674 | */ |
6675 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_AV) { | |
f6ca42c7 DM |
6676 | IV i; |
6677 | ||
6678 | if (AvFILL((AV*)targ) > -1) { | |
6679 | /* target should usually be empty. If we get get | |
6680 | * here, someone's been doing some weird closure tricks. | |
6681 | * Make a copy of all args before clearing the array, | |
6682 | * to avoid the equivalent of @a = ($a[0]) prematurely freeing | |
6683 | * elements. See similar code in pp_aassign. | |
6684 | */ | |
6685 | for (i = 0; i < argc; i++) { | |
6686 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
6687 | SV *newsv = newSV(0); | |
6688 | sv_setsv_flags(newsv, | |
6689 | svp ? *svp : &PL_sv_undef, | |
6690 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
6691 | if (!av_store(defav, ix + i, newsv)) | |
6692 | SvREFCNT_dec_NN(newsv); | |
6693 | } | |
6694 | av_clear((AV*)targ); | |
6695 | } | |
6696 | ||
6697 | if (argc <= 0) | |
6698 | return o->op_next; | |
4fa06845 | 6699 | |
4fa06845 DM |
6700 | av_extend((AV*)targ, argc); |
6701 | ||
f6ca42c7 | 6702 | i = 0; |
4fa06845 DM |
6703 | while (argc--) { |
6704 | SV *tmpsv; | |
f6ca42c7 DM |
6705 | SV **svp = av_fetch(defav, ix + i, FALSE); |
6706 | SV *val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 6707 | tmpsv = newSV(0); |
f6ca42c7 | 6708 | sv_setsv(tmpsv, val); |
4fa06845 DM |
6709 | av_store((AV*)targ, i++, tmpsv); |
6710 | TAINT_NOT; | |
6711 | } | |
6712 | ||
6713 | } | |
6714 | else { | |
f6ca42c7 DM |
6715 | IV i; |
6716 | ||
4fa06845 DM |
6717 | assert((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_HV); |
6718 | ||
f6ca42c7 DM |
6719 | if (SvRMAGICAL(targ) || HvUSEDKEYS((HV*)targ)) { |
6720 | /* see "target should usually be empty" comment above */ | |
6721 | for (i = 0; i < argc; i++) { | |
6722 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
6723 | SV *newsv = newSV(0); | |
6724 | sv_setsv_flags(newsv, | |
6725 | svp ? *svp : &PL_sv_undef, | |
6726 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
6727 | if (!av_store(defav, ix + i, newsv)) | |
6728 | SvREFCNT_dec_NN(newsv); | |
6729 | } | |
6730 | hv_clear((HV*)targ); | |
6731 | } | |
6732 | ||
6733 | if (argc <= 0) | |
6734 | return o->op_next; | |
4fa06845 | 6735 | assert(argc % 2 == 0); |
4fa06845 | 6736 | |
f6ca42c7 | 6737 | i = 0; |
4fa06845 DM |
6738 | while (argc) { |
6739 | SV *tmpsv; | |
f6ca42c7 DM |
6740 | SV **svp; |
6741 | SV *key; | |
6742 | SV *val; | |
6743 | ||
6744 | svp = av_fetch(defav, ix + i++, FALSE); | |
6745 | key = svp ? *svp : &PL_sv_undef; | |
6746 | svp = av_fetch(defav, ix + i++, FALSE); | |
6747 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 6748 | |
4fa06845 DM |
6749 | argc -= 2; |
6750 | if (UNLIKELY(SvGMAGICAL(key))) | |
6751 | key = sv_mortalcopy(key); | |
6752 | tmpsv = newSV(0); | |
6753 | sv_setsv(tmpsv, val); | |
6754 | hv_store_ent((HV*)targ, key, tmpsv, 0); | |
6755 | TAINT_NOT; | |
6756 | } | |
6757 | } | |
6758 | ||
6759 | return o->op_next; | |
6760 | } | |
6761 | ||
6762 | /* Handle a default value for one subroutine argument (typically as part | |
6763 | * of a subroutine signature). | |
6764 | * It's equivalent to | |
6765 | * @_ > op_targ ? $_[op_targ] : result_of(op_other) | |
6766 | * | |
6767 | * Intended to be used where op_next is an OP_ARGELEM | |
6768 | * | |
6769 | * We abuse the op_targ field slightly: it's an index into @_ rather than | |
6770 | * into PL_curpad. | |
6771 | */ | |
6772 | ||
6773 | PP(pp_argdefelem) | |
6774 | { | |
6775 | OP * const o = PL_op; | |
6776 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6777 | IV ix = (IV)o->op_targ; |
4fa06845 | 6778 | |
f6ca42c7 | 6779 | assert(ix >= 0); |
6daeaaa3 DM |
6780 | #if IVSIZE > PTRSIZE |
6781 | assert(ix <= SSize_t_MAX); | |
6782 | #endif | |
f6ca42c7 DM |
6783 | |
6784 | if (AvFILL(defav) >= ix) { | |
4fa06845 | 6785 | dSP; |
f6ca42c7 DM |
6786 | SV **svp = av_fetch(defav, ix, FALSE); |
6787 | SV *val = svp ? *svp : &PL_sv_undef; | |
6788 | XPUSHs(val); | |
4fa06845 DM |
6789 | RETURN; |
6790 | } | |
6791 | return cLOGOPo->op_other; | |
6792 | } | |
6793 | ||
6794 | ||
ac7609e4 AC |
6795 | static SV * |
6796 | S_find_runcv_name(void) | |
6797 | { | |
6798 | dTHX; | |
6799 | CV *cv; | |
6800 | GV *gv; | |
6801 | SV *sv; | |
6802 | ||
6803 | cv = find_runcv(0); | |
6804 | if (!cv) | |
6805 | return &PL_sv_no; | |
6806 | ||
6807 | gv = CvGV(cv); | |
6808 | if (!gv) | |
6809 | return &PL_sv_no; | |
6810 | ||
6811 | sv = sv_2mortal(newSV(0)); | |
6812 | gv_fullname4(sv, gv, NULL, TRUE); | |
6813 | return sv; | |
6814 | } | |
4fa06845 DM |
6815 | |
6816 | /* Check a a subs arguments - i.e. that it has the correct number of args | |
6817 | * (and anything else we might think of in future). Typically used with | |
6818 | * signatured subs. | |
6819 | */ | |
6820 | ||
6821 | PP(pp_argcheck) | |
6822 | { | |
6823 | OP * const o = PL_op; | |
6824 | UNOP_AUX_item *aux = cUNOP_AUXo->op_aux; | |
6daeaaa3 DM |
6825 | IV params = aux[0].iv; |
6826 | IV opt_params = aux[1].iv; | |
4fa06845 DM |
6827 | char slurpy = (char)(aux[2].iv); |
6828 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6829 | IV argc; |
4fa06845 DM |
6830 | bool too_few; |
6831 | ||
6832 | assert(!SvMAGICAL(defav)); | |
6daeaaa3 | 6833 | argc = (AvFILLp(defav) + 1); |
4fa06845 DM |
6834 | too_few = (argc < (params - opt_params)); |
6835 | ||
6836 | if (UNLIKELY(too_few || (!slurpy && argc > params))) | |
ac7609e4 AC |
6837 | /* diag_listed_as: Too few arguments for subroutine '%s' */ |
6838 | /* diag_listed_as: Too many arguments for subroutine '%s' */ | |
6839 | Perl_croak_caller("Too %s arguments for subroutine '%" SVf "'", | |
6840 | too_few ? "few" : "many", S_find_runcv_name()); | |
4fa06845 DM |
6841 | |
6842 | if (UNLIKELY(slurpy == '%' && argc > params && (argc - params) % 2)) | |
ac7609e4 AC |
6843 | /* diag_listed_as: Odd name/value argument for subroutine '%s' */ |
6844 | Perl_croak_caller("Odd name/value argument for subroutine '%" SVf "'", | |
6845 | S_find_runcv_name()); | |
4fa06845 DM |
6846 | |
6847 | return NORMAL; | |
6848 | } | |
6849 | ||
e609e586 | 6850 | /* |
14d04a33 | 6851 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 6852 | */ |