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 | |
dbb3849a | 31 | #include "invlist_inline.h" |
a4af207c | 32 | #include "reentr.h" |
685289b5 | 33 | #include "regcharclass.h" |
a4af207c | 34 | |
13017935 SM |
35 | /* variations on pp_null */ |
36 | ||
93a17b20 LW |
37 | PP(pp_stub) |
38 | { | |
39644a26 | 39 | dSP; |
54310121 | 40 | if (GIMME_V == G_SCALAR) |
3280af22 | 41 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
42 | RETURN; |
43 | } | |
44 | ||
79072805 LW |
45 | /* Pushy stuff. */ |
46 | ||
a46a7b6e | 47 | |
93a17b20 | 48 | |
ac217057 FC |
49 | PP(pp_padcv) |
50 | { | |
20b7effb | 51 | dSP; dTARGET; |
97b03d64 FC |
52 | assert(SvTYPE(TARG) == SVt_PVCV); |
53 | XPUSHs(TARG); | |
54 | RETURN; | |
ac217057 FC |
55 | } |
56 | ||
ecf9c8b7 FC |
57 | PP(pp_introcv) |
58 | { | |
20b7effb | 59 | dTARGET; |
6d5c2147 FC |
60 | SvPADSTALE_off(TARG); |
61 | return NORMAL; | |
ecf9c8b7 FC |
62 | } |
63 | ||
13f89586 FC |
64 | PP(pp_clonecv) |
65 | { | |
20b7effb | 66 | dTARGET; |
0f94cb1f FC |
67 | CV * const protocv = PadnamePROTOCV( |
68 | PadlistNAMESARRAY(CvPADLIST(find_runcv(NULL)))[ARGTARG] | |
69 | ); | |
6d5c2147 | 70 | assert(SvTYPE(TARG) == SVt_PVCV); |
0f94cb1f FC |
71 | assert(protocv); |
72 | if (CvISXSUB(protocv)) { /* constant */ | |
6d5c2147 | 73 | /* XXX Should we clone it here? */ |
6d5c2147 FC |
74 | /* If this changes to use SAVECLEARSV, we can move the SAVECLEARSV |
75 | to introcv and remove the SvPADSTALE_off. */ | |
76 | SAVEPADSVANDMORTALIZE(ARGTARG); | |
0f94cb1f | 77 | PAD_SVl(ARGTARG) = SvREFCNT_inc_simple_NN(protocv); |
6d5c2147 FC |
78 | } |
79 | else { | |
0f94cb1f FC |
80 | if (CvROOT(protocv)) { |
81 | assert(CvCLONE(protocv)); | |
82 | assert(!CvCLONED(protocv)); | |
6d5c2147 | 83 | } |
0f94cb1f | 84 | cv_clone_into(protocv,(CV *)TARG); |
6d5c2147 FC |
85 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
86 | } | |
87 | return NORMAL; | |
13f89586 FC |
88 | } |
89 | ||
79072805 LW |
90 | /* Translations. */ |
91 | ||
6f7909da FC |
92 | /* In some cases this function inspects PL_op. If this function is called |
93 | for new op types, more bool parameters may need to be added in place of | |
94 | the checks. | |
95 | ||
96 | When noinit is true, the absence of a gv will cause a retval of undef. | |
97 | This is unrelated to the cv-to-gv assignment case. | |
6f7909da FC |
98 | */ |
99 | ||
100 | static SV * | |
101 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
102 | const bool noinit) | |
103 | { | |
f64c9ac5 | 104 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 105 | if (SvROK(sv)) { |
93d7320b DM |
106 | if (SvAMAGIC(sv)) { |
107 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 108 | } |
e4a1664f | 109 | wasref: |
ed6116ce | 110 | sv = SvRV(sv); |
b1dadf13 | 111 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 112 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
885f468a | 113 | gv_init(gv, 0, "__ANONIO__", 10, 0); |
a45c7426 | 114 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 115 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 116 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 117 | } |
81d52ecd JH |
118 | else if (!isGV_with_GP(sv)) { |
119 | Perl_die(aTHX_ "Not a GLOB reference"); | |
120 | } | |
79072805 LW |
121 | } |
122 | else { | |
6e592b3a | 123 | if (!isGV_with_GP(sv)) { |
f132ae69 | 124 | if (!SvOK(sv)) { |
b13b2135 | 125 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 126 | * NI-S 1999/05/07 |
b13b2135 | 127 | */ |
f132ae69 | 128 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 129 | GV *gv; |
db9848c8 | 130 | HV *stash; |
ce74145d | 131 | if (SvREADONLY(sv)) |
cb077ed2 | 132 | Perl_croak_no_modify(); |
db9848c8 Z |
133 | gv = MUTABLE_GV(newSV(0)); |
134 | stash = CopSTASH(PL_curcop); | |
135 | if (SvTYPE(stash) != SVt_PVHV) stash = NULL; | |
2c8ac474 | 136 | if (cUNOP->op_targ) { |
0bd48802 | 137 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
94e7eb6f | 138 | gv_init_sv(gv, stash, namesv, 0); |
2c8ac474 GS |
139 | } |
140 | else { | |
db9848c8 | 141 | gv_init_pv(gv, stash, "__ANONIO__", 0); |
1d8d4d2a | 142 | } |
43230e26 | 143 | prepare_SV_for_RV(sv); |
ad64d0ec | 144 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 145 | SvROK_on(sv); |
1d8d4d2a | 146 | SvSETMAGIC(sv); |
853846ea | 147 | goto wasref; |
2c8ac474 | 148 | } |
81d52ecd JH |
149 | if (PL_op->op_flags & OPf_REF || strict) { |
150 | Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
151 | } | |
599cee73 | 152 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 153 | report_uninit(sv); |
6f7909da | 154 | return &PL_sv_undef; |
a0d0e21e | 155 | } |
6f7909da | 156 | if (noinit) |
35cd451c | 157 | { |
77cb3b01 FC |
158 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
159 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 160 | )))) |
6f7909da | 161 | return &PL_sv_undef; |
35cd451c GS |
162 | } |
163 | else { | |
81d52ecd JH |
164 | if (strict) { |
165 | Perl_die(aTHX_ | |
fedf30e1 | 166 | PL_no_symref_sv, |
81d52ecd JH |
167 | sv, |
168 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), | |
169 | "a symbol" | |
170 | ); | |
171 | } | |
e26df76a NC |
172 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
173 | == OPpDONT_INIT_GV) { | |
174 | /* We are the target of a coderef assignment. Return | |
175 | the scalar unchanged, and let pp_sasssign deal with | |
176 | things. */ | |
6f7909da | 177 | return sv; |
e26df76a | 178 | } |
77cb3b01 | 179 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 180 | } |
2acc3314 | 181 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 182 | SvFAKE_off(sv); |
93a17b20 | 183 | } |
79072805 | 184 | } |
8dc99089 | 185 | if (SvFAKE(sv) && !(PL_op->op_private & OPpALLOW_FAKE)) { |
2acc3314 | 186 | SV *newsv = sv_newmortal(); |
5cf4b255 | 187 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 188 | SvFAKE_off(newsv); |
d8906c05 | 189 | sv = newsv; |
2acc3314 | 190 | } |
6f7909da FC |
191 | return sv; |
192 | } | |
193 | ||
194 | PP(pp_rv2gv) | |
195 | { | |
20b7effb | 196 | dSP; dTOPss; |
6f7909da FC |
197 | |
198 | sv = S_rv2gv(aTHX_ | |
199 | sv, PL_op->op_private & OPpDEREF, | |
200 | PL_op->op_private & HINT_STRICT_REFS, | |
201 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
202 | || PL_op->op_type == OP_READLINE | |
203 | ); | |
d8906c05 FC |
204 | if (PL_op->op_private & OPpLVAL_INTRO) |
205 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
206 | SETs(sv); | |
79072805 LW |
207 | RETURN; |
208 | } | |
209 | ||
dc3c76f8 NC |
210 | /* Helper function for pp_rv2sv and pp_rv2av */ |
211 | GV * | |
fe9845cc RB |
212 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
213 | const svtype type, SV ***spp) | |
dc3c76f8 | 214 | { |
dc3c76f8 NC |
215 | GV *gv; |
216 | ||
7918f24d NC |
217 | PERL_ARGS_ASSERT_SOFTREF2XV; |
218 | ||
dc3c76f8 NC |
219 | if (PL_op->op_private & HINT_STRICT_REFS) { |
220 | if (SvOK(sv)) | |
fedf30e1 | 221 | Perl_die(aTHX_ PL_no_symref_sv, sv, |
bf3d870f | 222 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
dc3c76f8 NC |
223 | else |
224 | Perl_die(aTHX_ PL_no_usym, what); | |
225 | } | |
226 | if (!SvOK(sv)) { | |
fd1d9b5c | 227 | if ( |
c8fe3bdf | 228 | PL_op->op_flags & OPf_REF |
fd1d9b5c | 229 | ) |
dc3c76f8 NC |
230 | Perl_die(aTHX_ PL_no_usym, what); |
231 | if (ckWARN(WARN_UNINITIALIZED)) | |
232 | report_uninit(sv); | |
233 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
234 | (*spp)--; | |
235 | return NULL; | |
236 | } | |
237 | **spp = &PL_sv_undef; | |
238 | return NULL; | |
239 | } | |
240 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
241 | !(PL_op->op_flags & OPf_MOD)) | |
242 | { | |
77cb3b01 | 243 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
244 | { |
245 | **spp = &PL_sv_undef; | |
246 | return NULL; | |
247 | } | |
248 | } | |
249 | else { | |
77cb3b01 | 250 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
251 | } |
252 | return gv; | |
253 | } | |
254 | ||
79072805 LW |
255 | PP(pp_rv2sv) |
256 | { | |
20b7effb | 257 | dSP; dTOPss; |
c445ea15 | 258 | GV *gv = NULL; |
79072805 | 259 | |
9026059d | 260 | SvGETMAGIC(sv); |
ed6116ce | 261 | if (SvROK(sv)) { |
93d7320b DM |
262 | if (SvAMAGIC(sv)) { |
263 | sv = amagic_deref_call(sv, to_sv_amg); | |
93d7320b | 264 | } |
f5284f61 | 265 | |
ed6116ce | 266 | sv = SvRV(sv); |
69f00f67 | 267 | if (SvTYPE(sv) >= SVt_PVAV) |
cea2e8a9 | 268 | DIE(aTHX_ "Not a SCALAR reference"); |
79072805 LW |
269 | } |
270 | else { | |
159b6efe | 271 | gv = MUTABLE_GV(sv); |
748a9306 | 272 | |
6e592b3a | 273 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
274 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
275 | if (!gv) | |
276 | RETURN; | |
463ee0b2 | 277 | } |
29c711a3 | 278 | sv = GvSVn(gv); |
a0d0e21e | 279 | } |
533c011a | 280 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
281 | if (PL_op->op_private & OPpLVAL_INTRO) { |
282 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 283 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
284 | else if (gv) |
285 | sv = save_scalar(gv); | |
286 | else | |
f1f66076 | 287 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 288 | } |
533c011a | 289 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 290 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 291 | } |
655f5b26 | 292 | SPAGAIN; /* in case chasing soft refs reallocated the stack */ |
a0d0e21e | 293 | SETs(sv); |
79072805 LW |
294 | RETURN; |
295 | } | |
296 | ||
297 | PP(pp_av2arylen) | |
298 | { | |
20b7effb | 299 | dSP; |
502c6561 | 300 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
301 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
302 | if (lvalue) { | |
8160c8f5 DM |
303 | SV ** const svp = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); |
304 | if (!*svp) { | |
305 | *svp = newSV_type(SVt_PVMG); | |
306 | sv_magic(*svp, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
02d85cc3 | 307 | } |
8160c8f5 | 308 | SETs(*svp); |
02d85cc3 | 309 | } else { |
e1dccc0d | 310 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 311 | } |
79072805 LW |
312 | RETURN; |
313 | } | |
314 | ||
a0d0e21e LW |
315 | PP(pp_pos) |
316 | { | |
27a8dde8 | 317 | dSP; dTOPss; |
8ec5e241 | 318 | |
78f9721b | 319 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
d14578b8 | 320 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV));/* Not TARG RT#67838 */ |
16eb5365 FC |
321 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); |
322 | LvTYPE(ret) = '.'; | |
323 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
27a8dde8 | 324 | SETs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
325 | } |
326 | else { | |
96c2a8ff | 327 | const MAGIC * const mg = mg_find_mglob(sv); |
6174b39a | 328 | if (mg && mg->mg_len != -1) { |
6174b39a | 329 | STRLEN i = mg->mg_len; |
7b394f12 DM |
330 | if (PL_op->op_private & OPpTRUEBOOL) |
331 | SETs(i ? &PL_sv_yes : &PL_sv_zero); | |
332 | else { | |
333 | dTARGET; | |
334 | if (mg->mg_flags & MGf_BYTES && DO_UTF8(sv)) | |
335 | i = sv_pos_b2u_flags(sv, i, SV_GMAGIC|SV_CONST_RETURN); | |
336 | SETu(i); | |
337 | } | |
27a8dde8 | 338 | return NORMAL; |
a0d0e21e | 339 | } |
27a8dde8 | 340 | SETs(&PL_sv_undef); |
a0d0e21e | 341 | } |
27a8dde8 | 342 | return NORMAL; |
a0d0e21e LW |
343 | } |
344 | ||
79072805 LW |
345 | PP(pp_rv2cv) |
346 | { | |
20b7effb | 347 | dSP; |
79072805 | 348 | GV *gv; |
1eced8f8 | 349 | HV *stash_unused; |
c445ea15 | 350 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 351 | ? GV_ADDMG |
d14578b8 KW |
352 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) |
353 | == OPpMAY_RETURN_CONSTANT) | |
c445ea15 AL |
354 | ? GV_ADD|GV_NOEXPAND |
355 | : GV_ADD; | |
4633a7c4 LW |
356 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
357 | /* (But not in defined().) */ | |
e26df76a | 358 | |
1eced8f8 | 359 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
5a20ba3d | 360 | if (cv) NOOP; |
e26df76a | 361 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
2eaf799e FC |
362 | cv = SvTYPE(SvRV(gv)) == SVt_PVCV |
363 | ? MUTABLE_CV(SvRV(gv)) | |
364 | : MUTABLE_CV(gv); | |
a8e41ef4 | 365 | } |
07055b4c | 366 | else |
ea726b52 | 367 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 368 | SETs(MUTABLE_SV(cv)); |
3d79e3ee | 369 | return NORMAL; |
79072805 LW |
370 | } |
371 | ||
c07a80fd | 372 | PP(pp_prototype) |
373 | { | |
20b7effb | 374 | dSP; |
c07a80fd | 375 | CV *cv; |
376 | HV *stash; | |
377 | GV *gv; | |
fabdb6c0 | 378 | SV *ret = &PL_sv_undef; |
c07a80fd | 379 | |
6954f42f | 380 | if (SvGMAGICAL(TOPs)) SETs(sv_mortalcopy(TOPs)); |
b6c543e3 | 381 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 382 | const char * s = SvPVX_const(TOPs); |
0f12654f | 383 | if (memBEGINs(s, SvCUR(TOPs), "CORE::")) { |
be1b855b | 384 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
a96df643 | 385 | if (!code) |
147e3846 | 386 | DIE(aTHX_ "Can't find an opnumber for \"%" UTF8f "\"", |
b17a0679 | 387 | UTF8fARG(SvFLAGS(TOPs) & SVf_UTF8, SvCUR(TOPs)-6, s+6)); |
4e338c21 | 388 | { |
b66130dd FC |
389 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); |
390 | if (sv) ret = sv; | |
391 | } | |
b8c38f0a | 392 | goto set; |
b6c543e3 IZ |
393 | } |
394 | } | |
f2c0649b | 395 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 396 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
397 | ret = newSVpvn_flags( |
398 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
399 | ); | |
b6c543e3 | 400 | set: |
c07a80fd | 401 | SETs(ret); |
402 | RETURN; | |
403 | } | |
404 | ||
a0d0e21e LW |
405 | PP(pp_anoncode) |
406 | { | |
20b7effb | 407 | dSP; |
ea726b52 | 408 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 409 | if (CvCLONE(cv)) |
ad64d0ec | 410 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 411 | EXTEND(SP,1); |
ad64d0ec | 412 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
413 | RETURN; |
414 | } | |
415 | ||
416 | PP(pp_srefgen) | |
79072805 | 417 | { |
20b7effb | 418 | dSP; |
71be2cbc | 419 | *SP = refto(*SP); |
3ed34c76 | 420 | return NORMAL; |
8ec5e241 | 421 | } |
a0d0e21e LW |
422 | |
423 | PP(pp_refgen) | |
424 | { | |
20b7effb | 425 | dSP; dMARK; |
82334630 | 426 | if (GIMME_V != G_ARRAY) { |
5f0b1d4e GS |
427 | if (++MARK <= SP) |
428 | *MARK = *SP; | |
429 | else | |
1d51ab6c FC |
430 | { |
431 | MEXTEND(SP, 1); | |
3280af22 | 432 | *MARK = &PL_sv_undef; |
1d51ab6c | 433 | } |
5f0b1d4e GS |
434 | *MARK = refto(*MARK); |
435 | SP = MARK; | |
436 | RETURN; | |
a0d0e21e | 437 | } |
bbce6d69 | 438 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 439 | while (++MARK <= SP) |
440 | *MARK = refto(*MARK); | |
a0d0e21e | 441 | RETURN; |
79072805 LW |
442 | } |
443 | ||
76e3520e | 444 | STATIC SV* |
cea2e8a9 | 445 | S_refto(pTHX_ SV *sv) |
71be2cbc | 446 | { |
447 | SV* rv; | |
448 | ||
7918f24d NC |
449 | PERL_ARGS_ASSERT_REFTO; |
450 | ||
71be2cbc | 451 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
452 | if (LvTARGLEN(sv)) | |
68dc0745 | 453 | vivify_defelem(sv); |
454 | if (!(sv = LvTARG(sv))) | |
3280af22 | 455 | sv = &PL_sv_undef; |
0dd88869 | 456 | else |
b37c2d43 | 457 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 458 | } |
d8b46c1b | 459 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
460 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
461 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 462 | SvTEMP_off(sv); |
b37c2d43 | 463 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 464 | } |
60779a30 | 465 | else if (SvPADTMP(sv)) { |
f2933f5f | 466 | sv = newSVsv(sv); |
60779a30 | 467 | } |
1f1dcfb5 FC |
468 | else if (UNLIKELY(SvSMAGICAL(sv) && mg_find(sv, PERL_MAGIC_nonelem))) |
469 | sv_unmagic(SvREFCNT_inc_simple_NN(sv), PERL_MAGIC_nonelem); | |
71be2cbc | 470 | else { |
471 | SvTEMP_off(sv); | |
b37c2d43 | 472 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 473 | } |
474 | rv = sv_newmortal(); | |
4df7f6af | 475 | sv_upgrade(rv, SVt_IV); |
b162af07 | 476 | SvRV_set(rv, sv); |
71be2cbc | 477 | SvROK_on(rv); |
478 | return rv; | |
479 | } | |
480 | ||
79072805 LW |
481 | PP(pp_ref) |
482 | { | |
3c1e67ac DD |
483 | dSP; |
484 | SV * const sv = TOPs; | |
f12c7020 | 485 | |
511ddbdf | 486 | SvGETMAGIC(sv); |
ba75e9a4 | 487 | if (!SvROK(sv)) { |
3c1e67ac | 488 | SETs(&PL_sv_no); |
ba75e9a4 DM |
489 | return NORMAL; |
490 | } | |
491 | ||
492 | /* op is in boolean context? */ | |
493 | if ( (PL_op->op_private & OPpTRUEBOOL) | |
494 | || ( (PL_op->op_private & OPpMAYBE_TRUEBOOL) | |
495 | && block_gimme() == G_VOID)) | |
496 | { | |
497 | /* refs are always true - unless it's to an object blessed into a | |
498 | * class with a false name, i.e. "0". So we have to check for | |
499 | * that remote possibility. The following is is basically an | |
500 | * unrolled SvTRUE(sv_reftype(rv)) */ | |
501 | SV * const rv = SvRV(sv); | |
502 | if (SvOBJECT(rv)) { | |
503 | HV *stash = SvSTASH(rv); | |
504 | HEK *hek = HvNAME_HEK(stash); | |
505 | if (hek) { | |
506 | I32 len = HEK_LEN(hek); | |
507 | /* bail out and do it the hard way? */ | |
508 | if (UNLIKELY( | |
509 | len == HEf_SVKEY | |
510 | || (len == 1 && HEK_KEY(hek)[0] == '0') | |
511 | )) | |
512 | goto do_sv_ref; | |
513 | } | |
514 | } | |
515 | SETs(&PL_sv_yes); | |
516 | return NORMAL; | |
517 | } | |
518 | ||
519 | do_sv_ref: | |
520 | { | |
3c1e67ac DD |
521 | dTARGET; |
522 | SETs(TARG); | |
ba75e9a4 | 523 | sv_ref(TARG, SvRV(sv), TRUE); |
a10e04b5 | 524 | SvSETMAGIC(TARG); |
ba75e9a4 | 525 | return NORMAL; |
3c1e67ac | 526 | } |
79072805 | 527 | |
79072805 LW |
528 | } |
529 | ||
ba75e9a4 | 530 | |
79072805 LW |
531 | PP(pp_bless) |
532 | { | |
20b7effb | 533 | dSP; |
463ee0b2 | 534 | HV *stash; |
79072805 | 535 | |
463ee0b2 | 536 | if (MAXARG == 1) |
dcdfe746 | 537 | { |
c2f922f1 | 538 | curstash: |
11faa288 | 539 | stash = CopSTASH(PL_curcop); |
dcdfe746 FC |
540 | if (SvTYPE(stash) != SVt_PVHV) |
541 | Perl_croak(aTHX_ "Attempt to bless into a freed package"); | |
542 | } | |
7b8d334a | 543 | else { |
1b6737cc | 544 | SV * const ssv = POPs; |
7b8d334a | 545 | STRLEN len; |
e1ec3a88 | 546 | const char *ptr; |
81689caa | 547 | |
c2f922f1 | 548 | if (!ssv) goto curstash; |
8d9dd4b9 | 549 | SvGETMAGIC(ssv); |
c7ea825d FC |
550 | if (SvROK(ssv)) { |
551 | if (!SvAMAGIC(ssv)) { | |
552 | frog: | |
81689caa | 553 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
c7ea825d FC |
554 | } |
555 | /* SvAMAGIC is on here, but it only means potentially overloaded, | |
556 | so after stringification: */ | |
557 | ptr = SvPV_nomg_const(ssv,len); | |
558 | /* We need to check the flag again: */ | |
559 | if (!SvAMAGIC(ssv)) goto frog; | |
560 | } | |
561 | else ptr = SvPV_nomg_const(ssv,len); | |
a2a5de95 NC |
562 | if (len == 0) |
563 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
564 | "Explicit blessing to '' (assuming package main)"); | |
e69c50fe | 565 | stash = gv_stashpvn(ptr, len, GV_ADD|SvUTF8(ssv)); |
7b8d334a | 566 | } |
a0d0e21e | 567 | |
5d3fdfeb | 568 | (void)sv_bless(TOPs, stash); |
79072805 LW |
569 | RETURN; |
570 | } | |
571 | ||
fb73857a | 572 | PP(pp_gelem) |
573 | { | |
20b7effb | 574 | dSP; |
b13b2135 | 575 | |
1b6737cc | 576 | SV *sv = POPs; |
a180b31a BF |
577 | STRLEN len; |
578 | const char * const elem = SvPV_const(sv, len); | |
5695161e | 579 | GV * const gv = MUTABLE_GV(TOPs); |
c445ea15 | 580 | SV * tmpRef = NULL; |
1b6737cc | 581 | |
c445ea15 | 582 | sv = NULL; |
c4ba80c3 NC |
583 | if (elem) { |
584 | /* elem will always be NUL terminated. */ | |
c4ba80c3 NC |
585 | switch (*elem) { |
586 | case 'A': | |
500f3e18 | 587 | if (memEQs(elem, len, "ARRAY")) |
e14698d8 | 588 | { |
ad64d0ec | 589 | tmpRef = MUTABLE_SV(GvAV(gv)); |
e14698d8 FC |
590 | if (tmpRef && !AvREAL((const AV *)tmpRef) |
591 | && AvREIFY((const AV *)tmpRef)) | |
592 | av_reify(MUTABLE_AV(tmpRef)); | |
593 | } | |
c4ba80c3 NC |
594 | break; |
595 | case 'C': | |
500f3e18 | 596 | if (memEQs(elem, len, "CODE")) |
ad64d0ec | 597 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
598 | break; |
599 | case 'F': | |
500f3e18 | 600 | if (memEQs(elem, len, "FILEHANDLE")) { |
ad64d0ec | 601 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
602 | } |
603 | else | |
500f3e18 | 604 | if (memEQs(elem, len, "FORMAT")) |
ad64d0ec | 605 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
606 | break; |
607 | case 'G': | |
500f3e18 | 608 | if (memEQs(elem, len, "GLOB")) |
ad64d0ec | 609 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
610 | break; |
611 | case 'H': | |
500f3e18 | 612 | if (memEQs(elem, len, "HASH")) |
ad64d0ec | 613 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
614 | break; |
615 | case 'I': | |
500f3e18 | 616 | if (memEQs(elem, len, "IO")) |
ad64d0ec | 617 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
618 | break; |
619 | case 'N': | |
500f3e18 | 620 | if (memEQs(elem, len, "NAME")) |
a663657d | 621 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
622 | break; |
623 | case 'P': | |
500f3e18 | 624 | if (memEQs(elem, len, "PACKAGE")) { |
7fa3a4ab NC |
625 | const HV * const stash = GvSTASH(gv); |
626 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 627 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
628 | } |
629 | break; | |
630 | case 'S': | |
500f3e18 | 631 | if (memEQs(elem, len, "SCALAR")) |
f9d52e31 | 632 | tmpRef = GvSVn(gv); |
c4ba80c3 | 633 | break; |
39b99f21 | 634 | } |
fb73857a | 635 | } |
76e3520e GS |
636 | if (tmpRef) |
637 | sv = newRV(tmpRef); | |
fb73857a | 638 | if (sv) |
639 | sv_2mortal(sv); | |
640 | else | |
3280af22 | 641 | sv = &PL_sv_undef; |
5695161e | 642 | SETs(sv); |
fb73857a | 643 | RETURN; |
644 | } | |
645 | ||
a0d0e21e | 646 | /* Pattern matching */ |
79072805 | 647 | |
a0d0e21e | 648 | PP(pp_study) |
79072805 | 649 | { |
add3e777 | 650 | dSP; dTOPss; |
a0d0e21e LW |
651 | STRLEN len; |
652 | ||
1fa930f2 | 653 | (void)SvPV(sv, len); |
bc9a5256 | 654 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
32f0ea87 | 655 | /* Historically, study was skipped in these cases. */ |
add3e777 FC |
656 | SETs(&PL_sv_no); |
657 | return NORMAL; | |
a4f4e906 NC |
658 | } |
659 | ||
a58a85fa | 660 | /* Make study a no-op. It's no longer useful and its existence |
32f0ea87 | 661 | complicates matters elsewhere. */ |
add3e777 FC |
662 | SETs(&PL_sv_yes); |
663 | return NORMAL; | |
79072805 LW |
664 | } |
665 | ||
b1c05ba5 DM |
666 | |
667 | /* also used for: pp_transr() */ | |
668 | ||
a0d0e21e | 669 | PP(pp_trans) |
79072805 | 670 | { |
a8e41ef4 | 671 | dSP; |
a0d0e21e LW |
672 | SV *sv; |
673 | ||
533c011a | 674 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 675 | sv = POPs; |
79072805 | 676 | else { |
a0d0e21e | 677 | EXTEND(SP,1); |
f605e527 | 678 | if (ARGTARG) |
6442877a | 679 | sv = PAD_SV(ARGTARG); |
f605e527 FC |
680 | else { |
681 | sv = DEFSV; | |
682 | } | |
79072805 | 683 | } |
bb16bae8 | 684 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
685 | STRLEN len; |
686 | const char * const pv = SvPV(sv,len); | |
687 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 688 | do_trans(newsv); |
290797f7 | 689 | PUSHs(newsv); |
bb16bae8 | 690 | } |
5bbe7184 | 691 | else { |
f0fd0980 DM |
692 | Size_t i = do_trans(sv); |
693 | mPUSHi((UV)i); | |
5bbe7184 | 694 | } |
a0d0e21e | 695 | RETURN; |
79072805 LW |
696 | } |
697 | ||
a0d0e21e | 698 | /* Lvalue operators. */ |
79072805 | 699 | |
f595e19f | 700 | static size_t |
81745e4e NC |
701 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) |
702 | { | |
81745e4e NC |
703 | STRLEN len; |
704 | char *s; | |
f595e19f | 705 | size_t count = 0; |
81745e4e NC |
706 | |
707 | PERL_ARGS_ASSERT_DO_CHOMP; | |
708 | ||
709 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
f595e19f | 710 | return 0; |
81745e4e NC |
711 | if (SvTYPE(sv) == SVt_PVAV) { |
712 | I32 i; | |
713 | AV *const av = MUTABLE_AV(sv); | |
714 | const I32 max = AvFILL(av); | |
715 | ||
716 | for (i = 0; i <= max; i++) { | |
717 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
718 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
f595e19f | 719 | count += do_chomp(retval, sv, chomping); |
81745e4e | 720 | } |
f595e19f | 721 | return count; |
81745e4e NC |
722 | } |
723 | else if (SvTYPE(sv) == SVt_PVHV) { | |
724 | HV* const hv = MUTABLE_HV(sv); | |
725 | HE* entry; | |
726 | (void)hv_iterinit(hv); | |
727 | while ((entry = hv_iternext(hv))) | |
f595e19f FC |
728 | count += do_chomp(retval, hv_iterval(hv,entry), chomping); |
729 | return count; | |
81745e4e NC |
730 | } |
731 | else if (SvREADONLY(sv)) { | |
cb077ed2 | 732 | Perl_croak_no_modify(); |
81745e4e NC |
733 | } |
734 | ||
81745e4e NC |
735 | s = SvPV(sv, len); |
736 | if (chomping) { | |
81745e4e | 737 | if (s && len) { |
997c424a DD |
738 | char *temp_buffer = NULL; |
739 | SV *svrecode = NULL; | |
81745e4e NC |
740 | s += --len; |
741 | if (RsPARA(PL_rs)) { | |
742 | if (*s != '\n') | |
997c424a | 743 | goto nope_free_nothing; |
f595e19f | 744 | ++count; |
81745e4e NC |
745 | while (len && s[-1] == '\n') { |
746 | --len; | |
747 | --s; | |
f595e19f | 748 | ++count; |
81745e4e NC |
749 | } |
750 | } | |
751 | else { | |
752 | STRLEN rslen, rs_charlen; | |
753 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
754 | ||
755 | rs_charlen = SvUTF8(PL_rs) | |
756 | ? sv_len_utf8(PL_rs) | |
757 | : rslen; | |
758 | ||
759 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
760 | /* Assumption is that rs is shorter than the scalar. */ | |
761 | if (SvUTF8(PL_rs)) { | |
762 | /* RS is utf8, scalar is 8 bit. */ | |
763 | bool is_utf8 = TRUE; | |
764 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
765 | &rslen, &is_utf8); | |
766 | if (is_utf8) { | |
997c424a DD |
767 | /* Cannot downgrade, therefore cannot possibly match. |
768 | At this point, temp_buffer is not alloced, and | |
769 | is the buffer inside PL_rs, so dont free it. | |
81745e4e NC |
770 | */ |
771 | assert (temp_buffer == rsptr); | |
997c424a | 772 | goto nope_free_sv; |
81745e4e NC |
773 | } |
774 | rsptr = temp_buffer; | |
775 | } | |
81745e4e NC |
776 | else { |
777 | /* RS is 8 bit, scalar is utf8. */ | |
778 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
779 | rsptr = temp_buffer; | |
780 | } | |
781 | } | |
782 | if (rslen == 1) { | |
783 | if (*s != *rsptr) | |
997c424a | 784 | goto nope_free_all; |
f595e19f | 785 | ++count; |
81745e4e NC |
786 | } |
787 | else { | |
788 | if (len < rslen - 1) | |
997c424a | 789 | goto nope_free_all; |
81745e4e NC |
790 | len -= rslen - 1; |
791 | s -= rslen - 1; | |
792 | if (memNE(s, rsptr, rslen)) | |
997c424a | 793 | goto nope_free_all; |
f595e19f | 794 | count += rs_charlen; |
81745e4e NC |
795 | } |
796 | } | |
3b7ded39 | 797 | SvPV_force_nomg_nolen(sv); |
81745e4e NC |
798 | SvCUR_set(sv, len); |
799 | *SvEND(sv) = '\0'; | |
800 | SvNIOK_off(sv); | |
801 | SvSETMAGIC(sv); | |
81745e4e | 802 | |
997c424a DD |
803 | nope_free_all: |
804 | Safefree(temp_buffer); | |
805 | nope_free_sv: | |
806 | SvREFCNT_dec(svrecode); | |
807 | nope_free_nothing: ; | |
808 | } | |
81745e4e | 809 | } else { |
f8c80a8e | 810 | if (len && (!SvPOK(sv) || SvIsCOW(sv))) |
81745e4e NC |
811 | s = SvPV_force_nomg(sv, len); |
812 | if (DO_UTF8(sv)) { | |
813 | if (s && len) { | |
814 | char * const send = s + len; | |
815 | char * const start = s; | |
816 | s = send - 1; | |
817 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
818 | s--; | |
819 | if (is_utf8_string((U8*)s, send - s)) { | |
820 | sv_setpvn(retval, s, send - s); | |
821 | *s = '\0'; | |
822 | SvCUR_set(sv, s - start); | |
823 | SvNIOK_off(sv); | |
824 | SvUTF8_on(retval); | |
825 | } | |
826 | } | |
827 | else | |
500f3e18 | 828 | SvPVCLEAR(retval); |
81745e4e NC |
829 | } |
830 | else if (s && len) { | |
831 | s += --len; | |
832 | sv_setpvn(retval, s, 1); | |
833 | *s = '\0'; | |
834 | SvCUR_set(sv, len); | |
835 | SvUTF8_off(sv); | |
836 | SvNIOK_off(sv); | |
837 | } | |
838 | else | |
500f3e18 | 839 | SvPVCLEAR(retval); |
81745e4e NC |
840 | SvSETMAGIC(sv); |
841 | } | |
f595e19f | 842 | return count; |
81745e4e NC |
843 | } |
844 | ||
b1c05ba5 DM |
845 | |
846 | /* also used for: pp_schomp() */ | |
847 | ||
a0d0e21e LW |
848 | PP(pp_schop) |
849 | { | |
20b7effb | 850 | dSP; dTARGET; |
fa54efae NC |
851 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
852 | ||
f595e19f | 853 | const size_t count = do_chomp(TARG, TOPs, chomping); |
fa54efae | 854 | if (chomping) |
f595e19f | 855 | sv_setiv(TARG, count); |
a0d0e21e | 856 | SETTARG; |
ee41d8c7 | 857 | return NORMAL; |
79072805 LW |
858 | } |
859 | ||
b1c05ba5 DM |
860 | |
861 | /* also used for: pp_chomp() */ | |
862 | ||
a0d0e21e | 863 | PP(pp_chop) |
79072805 | 864 | { |
20b7effb | 865 | dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 866 | const bool chomping = PL_op->op_type == OP_CHOMP; |
f595e19f | 867 | size_t count = 0; |
8ec5e241 | 868 | |
20cf1f79 | 869 | while (MARK < SP) |
f595e19f FC |
870 | count += do_chomp(TARG, *++MARK, chomping); |
871 | if (chomping) | |
872 | sv_setiv(TARG, count); | |
20cf1f79 NC |
873 | SP = ORIGMARK; |
874 | XPUSHTARG; | |
a0d0e21e | 875 | RETURN; |
79072805 LW |
876 | } |
877 | ||
a0d0e21e LW |
878 | PP(pp_undef) |
879 | { | |
20b7effb | 880 | dSP; |
a0d0e21e LW |
881 | SV *sv; |
882 | ||
533c011a | 883 | if (!PL_op->op_private) { |
774d564b | 884 | EXTEND(SP, 1); |
a0d0e21e | 885 | RETPUSHUNDEF; |
774d564b | 886 | } |
79072805 | 887 | |
821f14b0 | 888 | sv = TOPs; |
a0d0e21e | 889 | if (!sv) |
821f14b0 FC |
890 | { |
891 | SETs(&PL_sv_undef); | |
892 | return NORMAL; | |
893 | } | |
85e6fe83 | 894 | |
4dda930b FC |
895 | if (SvTHINKFIRST(sv)) |
896 | sv_force_normal_flags(sv, SV_COW_DROP_PV|SV_IMMEDIATE_UNREF); | |
85e6fe83 | 897 | |
a0d0e21e LW |
898 | switch (SvTYPE(sv)) { |
899 | case SVt_NULL: | |
900 | break; | |
901 | case SVt_PVAV: | |
60edcf09 | 902 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
903 | break; |
904 | case SVt_PVHV: | |
60edcf09 | 905 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
906 | break; |
907 | case SVt_PVCV: | |
a2a5de95 | 908 | if (cv_const_sv((const CV *)sv)) |
714cd18f | 909 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
147e3846 | 910 | "Constant subroutine %" SVf " undefined", |
714cd18f BF |
911 | SVfARG(CvANON((const CV *)sv) |
912 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
bdbfc51a FC |
913 | : sv_2mortal(newSVhek( |
914 | CvNAMED(sv) | |
915 | ? CvNAME_HEK((CV *)sv) | |
916 | : GvENAME_HEK(CvGV((const CV *)sv)) | |
917 | )) | |
918 | )); | |
5f66b61c | 919 | /* FALLTHROUGH */ |
9607fc9c | 920 | case SVt_PVFM: |
6fc92669 | 921 | /* let user-undef'd sub keep its identity */ |
b7acb0a3 | 922 | cv_undef_flags(MUTABLE_CV(sv), CV_UNDEF_KEEP_NAME); |
a0d0e21e | 923 | break; |
8e07c86e | 924 | case SVt_PVGV: |
bc1df6c2 FC |
925 | assert(isGV_with_GP(sv)); |
926 | assert(!SvFAKE(sv)); | |
927 | { | |
20408e3c | 928 | GP *gp; |
dd69841b BB |
929 | HV *stash; |
930 | ||
dd69841b | 931 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
932 | bool method_changed |
933 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
934 | && HvENAME_get(stash); | |
935 | /* undef *Foo:: */ | |
936 | if((stash = GvHV((const GV *)sv))) { | |
937 | if(HvENAME_get(stash)) | |
938 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
939 | else stash = NULL; | |
940 | } | |
dd69841b | 941 | |
795eb8c8 | 942 | SvREFCNT_inc_simple_void_NN(sv_2mortal(sv)); |
159b6efe | 943 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 944 | Newxz(gp, 1, GP); |
c43ae56f | 945 | GvGP_set(sv, gp_ref(gp)); |
2e3295e3 | 946 | #ifndef PERL_DONT_CREATE_GVSV |
561b68a9 | 947 | GvSV(sv) = newSV(0); |
2e3295e3 | 948 | #endif |
57843af0 | 949 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 950 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 951 | GvMULTI_on(sv); |
e530fb81 FC |
952 | |
953 | if(stash) | |
afdbe55d | 954 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
955 | stash = NULL; |
956 | /* undef *Foo::ISA */ | |
957 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
958 | && (stash = GvSTASH((const GV *)sv)) | |
959 | && (method_changed || HvENAME(stash)) ) | |
960 | mro_isa_changed_in(stash); | |
961 | else if(method_changed) | |
962 | mro_method_changed_in( | |
da9043f5 | 963 | GvSTASH((const GV *)sv) |
e530fb81 FC |
964 | ); |
965 | ||
6e592b3a | 966 | break; |
20408e3c | 967 | } |
a0d0e21e | 968 | default: |
b15aece3 | 969 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 970 | SvPV_free(sv); |
c445ea15 | 971 | SvPV_set(sv, NULL); |
4633a7c4 | 972 | SvLEN_set(sv, 0); |
a0d0e21e | 973 | } |
0c34ef67 | 974 | SvOK_off(sv); |
4633a7c4 | 975 | SvSETMAGIC(sv); |
79072805 | 976 | } |
a0d0e21e | 977 | |
821f14b0 FC |
978 | SETs(&PL_sv_undef); |
979 | return NORMAL; | |
79072805 LW |
980 | } |
981 | ||
b1c05ba5 | 982 | |
20e96431 | 983 | /* common "slow" code for pp_postinc and pp_postdec */ |
b1c05ba5 | 984 | |
20e96431 DM |
985 | static OP * |
986 | S_postincdec_common(pTHX_ SV *sv, SV *targ) | |
a0d0e21e | 987 | { |
20e96431 | 988 | dSP; |
c22c99bc FC |
989 | const bool inc = |
990 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
20e96431 DM |
991 | |
992 | if (SvROK(sv)) | |
7dcb9b98 | 993 | TARG = sv_newmortal(); |
20e96431 DM |
994 | sv_setsv(TARG, sv); |
995 | if (inc) | |
996 | sv_inc_nomg(sv); | |
997 | else | |
998 | sv_dec_nomg(sv); | |
999 | SvSETMAGIC(sv); | |
1e54a23f | 1000 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1001 | if (inc && !SvOK(TARG)) |
a0d0e21e | 1002 | sv_setiv(TARG, 0); |
e87de4ab | 1003 | SETTARG; |
a0d0e21e LW |
1004 | return NORMAL; |
1005 | } | |
79072805 | 1006 | |
20e96431 DM |
1007 | |
1008 | /* also used for: pp_i_postinc() */ | |
1009 | ||
1010 | PP(pp_postinc) | |
1011 | { | |
1012 | dSP; dTARGET; | |
1013 | SV *sv = TOPs; | |
1014 | ||
1015 | /* special-case sv being a simple integer */ | |
1016 | if (LIKELY(((sv->sv_flags & | |
1017 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1018 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1019 | == SVf_IOK)) | |
1020 | && SvIVX(sv) != IV_MAX) | |
1021 | { | |
1022 | IV iv = SvIVX(sv); | |
1023 | SvIV_set(sv, iv + 1); | |
1024 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1025 | SETs(TARG); | |
1026 | return NORMAL; | |
1027 | } | |
1028 | ||
1029 | return S_postincdec_common(aTHX_ sv, TARG); | |
1030 | } | |
1031 | ||
1032 | ||
1033 | /* also used for: pp_i_postdec() */ | |
1034 | ||
1035 | PP(pp_postdec) | |
1036 | { | |
1037 | dSP; dTARGET; | |
1038 | SV *sv = TOPs; | |
1039 | ||
1040 | /* special-case sv being a simple integer */ | |
1041 | if (LIKELY(((sv->sv_flags & | |
1042 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1043 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1044 | == SVf_IOK)) | |
1045 | && SvIVX(sv) != IV_MIN) | |
1046 | { | |
1047 | IV iv = SvIVX(sv); | |
1048 | SvIV_set(sv, iv - 1); | |
1049 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1050 | SETs(TARG); | |
1051 | return NORMAL; | |
1052 | } | |
1053 | ||
1054 | return S_postincdec_common(aTHX_ sv, TARG); | |
1055 | } | |
1056 | ||
1057 | ||
a0d0e21e LW |
1058 | /* Ordinary operators. */ |
1059 | ||
1060 | PP(pp_pow) | |
1061 | { | |
20b7effb | 1062 | dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1063 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1064 | bool is_int = 0; |
1065 | #endif | |
6f1401dc DM |
1066 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1067 | svr = TOPs; | |
1068 | svl = TOPm1s; | |
52a96ae6 HS |
1069 | #ifdef PERL_PRESERVE_IVUV |
1070 | /* For integer to integer power, we do the calculation by hand wherever | |
1071 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1072 | integer afterwards. */ | |
01f91bf2 | 1073 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
900658e3 PF |
1074 | UV power; |
1075 | bool baseuok; | |
1076 | UV baseuv; | |
1077 | ||
800401ee JH |
1078 | if (SvUOK(svr)) { |
1079 | power = SvUVX(svr); | |
900658e3 | 1080 | } else { |
800401ee | 1081 | const IV iv = SvIVX(svr); |
900658e3 PF |
1082 | if (iv >= 0) { |
1083 | power = iv; | |
1084 | } else { | |
1085 | goto float_it; /* Can't do negative powers this way. */ | |
1086 | } | |
1087 | } | |
1088 | ||
800401ee | 1089 | baseuok = SvUOK(svl); |
900658e3 | 1090 | if (baseuok) { |
800401ee | 1091 | baseuv = SvUVX(svl); |
900658e3 | 1092 | } else { |
800401ee | 1093 | const IV iv = SvIVX(svl); |
900658e3 PF |
1094 | if (iv >= 0) { |
1095 | baseuv = iv; | |
1096 | baseuok = TRUE; /* effectively it's a UV now */ | |
1097 | } else { | |
1098 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1099 | } | |
1100 | } | |
52a96ae6 HS |
1101 | /* now we have integer ** positive integer. */ |
1102 | is_int = 1; | |
1103 | ||
1104 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1105 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1106 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1107 | The logic here will work for any base (even non-integer |
1108 | bases) but it can be less accurate than | |
1109 | pow (base,power) or exp (power * log (base)) when the | |
1110 | intermediate values start to spill out of the mantissa. | |
1111 | With powers of 2 we know this can't happen. | |
1112 | And powers of 2 are the favourite thing for perl | |
1113 | programmers to notice ** not doing what they mean. */ | |
1114 | NV result = 1.0; | |
1115 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1116 | |
1117 | if (power & 1) { | |
1118 | result *= base; | |
1119 | } | |
1120 | while (power >>= 1) { | |
1121 | base *= base; | |
1122 | if (power & 1) { | |
1123 | result *= base; | |
1124 | } | |
1125 | } | |
58d76dfd JH |
1126 | SP--; |
1127 | SETn( result ); | |
6f1401dc | 1128 | SvIV_please_nomg(svr); |
58d76dfd | 1129 | RETURN; |
52a96ae6 | 1130 | } else { |
eb578fdb KW |
1131 | unsigned int highbit = 8 * sizeof(UV); |
1132 | unsigned int diff = 8 * sizeof(UV); | |
900658e3 PF |
1133 | while (diff >>= 1) { |
1134 | highbit -= diff; | |
1135 | if (baseuv >> highbit) { | |
1136 | highbit += diff; | |
1137 | } | |
52a96ae6 HS |
1138 | } |
1139 | /* we now have baseuv < 2 ** highbit */ | |
1140 | if (power * highbit <= 8 * sizeof(UV)) { | |
1141 | /* result will definitely fit in UV, so use UV math | |
1142 | on same algorithm as above */ | |
eb578fdb KW |
1143 | UV result = 1; |
1144 | UV base = baseuv; | |
f2338a2e | 1145 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1146 | if (odd_power) { |
1147 | result *= base; | |
1148 | } | |
1149 | while (power >>= 1) { | |
1150 | base *= base; | |
1151 | if (power & 1) { | |
52a96ae6 | 1152 | result *= base; |
52a96ae6 HS |
1153 | } |
1154 | } | |
1155 | SP--; | |
0615a994 | 1156 | if (baseuok || !odd_power) |
52a96ae6 HS |
1157 | /* answer is positive */ |
1158 | SETu( result ); | |
1159 | else if (result <= (UV)IV_MAX) | |
1160 | /* answer negative, fits in IV */ | |
1161 | SETi( -(IV)result ); | |
a8e41ef4 | 1162 | else if (result == (UV)IV_MIN) |
52a96ae6 HS |
1163 | /* 2's complement assumption: special case IV_MIN */ |
1164 | SETi( IV_MIN ); | |
1165 | else | |
1166 | /* answer negative, doesn't fit */ | |
1167 | SETn( -(NV)result ); | |
1168 | RETURN; | |
a8e41ef4 | 1169 | } |
52a96ae6 | 1170 | } |
58d76dfd | 1171 | } |
52a96ae6 | 1172 | float_it: |
a8e41ef4 | 1173 | #endif |
a0d0e21e | 1174 | { |
6f1401dc DM |
1175 | NV right = SvNV_nomg(svr); |
1176 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1177 | (void)POPs; |
3aaeb624 JA |
1178 | |
1179 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1180 | /* | |
1181 | We are building perl with long double support and are on an AIX OS | |
1182 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1183 | negative base. This was reported to IBM as PMR #23047-379 on | |
1184 | 03/06/2006. The problem exists in at least the following versions | |
1185 | of AIX and the libm fileset, and no doubt others as well: | |
1186 | ||
1187 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1188 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1189 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1190 | ||
1191 | So, until IBM fixes powl(), we provide the following workaround to | |
1192 | handle the problem ourselves. Our logic is as follows: for | |
1193 | negative bases (left), we use fmod(right, 2) to check if the | |
1194 | exponent is an odd or even integer: | |
1195 | ||
1196 | - if odd, powl(left, right) == -powl(-left, right) | |
1197 | - if even, powl(left, right) == powl(-left, right) | |
1198 | ||
1199 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1200 | we just return that (as NV_NAN). | |
1201 | */ | |
1202 | ||
1203 | if (left < 0.0) { | |
1204 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1205 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1206 | SETn( -Perl_pow( -left, right) ); | |
1207 | } else if (mod2 == 0.0) { /* even integer */ | |
1208 | SETn( Perl_pow( -left, right) ); | |
1209 | } else { /* fractional power */ | |
1210 | SETn( NV_NAN ); | |
1211 | } | |
1212 | } else { | |
1213 | SETn( Perl_pow( left, right) ); | |
1214 | } | |
1215 | #else | |
52a96ae6 | 1216 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1217 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1218 | ||
52a96ae6 HS |
1219 | #ifdef PERL_PRESERVE_IVUV |
1220 | if (is_int) | |
6f1401dc | 1221 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1222 | #endif |
1223 | RETURN; | |
93a17b20 | 1224 | } |
a0d0e21e LW |
1225 | } |
1226 | ||
1227 | PP(pp_multiply) | |
1228 | { | |
20b7effb | 1229 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1230 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1231 | svr = TOPs; | |
1232 | svl = TOPm1s; | |
230ee21f | 1233 | |
28e5dec8 | 1234 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1235 | |
1236 | /* special-case some simple common cases */ | |
1237 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1238 | IV il, ir; | |
1239 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1240 | if (flags & SVf_IOK) { | |
1241 | /* both args are simple IVs */ | |
1242 | UV topl, topr; | |
1243 | il = SvIVX(svl); | |
1244 | ir = SvIVX(svr); | |
1245 | do_iv: | |
1246 | topl = ((UV)il) >> (UVSIZE * 4 - 1); | |
1247 | topr = ((UV)ir) >> (UVSIZE * 4 - 1); | |
1248 | ||
1249 | /* if both are in a range that can't under/overflow, do a | |
1250 | * simple integer multiply: if the top halves(*) of both numbers | |
1251 | * are 00...00 or 11...11, then it's safe. | |
1252 | * (*) for 32-bits, the "top half" is the top 17 bits, | |
1253 | * for 64-bits, its 33 bits */ | |
1254 | if (!( | |
1255 | ((topl+1) | (topr+1)) | |
1256 | & ( (((UV)1) << (UVSIZE * 4 + 1)) - 2) /* 11..110 */ | |
1257 | )) { | |
1258 | SP--; | |
1259 | TARGi(il * ir, 0); /* args not GMG, so can't be tainted */ | |
1260 | SETs(TARG); | |
1261 | RETURN; | |
1262 | } | |
1263 | goto generic; | |
1264 | } | |
1265 | else if (flags & SVf_NOK) { | |
1266 | /* both args are NVs */ | |
1267 | NV nl = SvNVX(svl); | |
1268 | NV nr = SvNVX(svr); | |
1269 | NV result; | |
1270 | ||
3a019afd | 1271 | if (lossless_NV_to_IV(nl, &il) && lossless_NV_to_IV(nr, &ir)) { |
230ee21f DM |
1272 | /* nothing was lost by converting to IVs */ |
1273 | goto do_iv; | |
3a019afd | 1274 | } |
230ee21f DM |
1275 | SP--; |
1276 | result = nl * nr; | |
1f02ab1d | 1277 | # if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1278 | if (Perl_isinf(result)) { |
1279 | Zero((U8*)&result + 8, 8, U8); | |
1280 | } | |
1281 | # endif | |
1282 | TARGn(result, 0); /* args not GMG, so can't be tainted */ | |
1283 | SETs(TARG); | |
1284 | RETURN; | |
1285 | } | |
1286 | } | |
1287 | ||
1288 | generic: | |
1289 | ||
01f91bf2 | 1290 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1291 | /* Unless the left argument is integer in range we are going to have to |
1292 | use NV maths. Hence only attempt to coerce the right argument if | |
1293 | we know the left is integer. */ | |
1294 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1295 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1296 | bool auvok = SvUOK(svl); |
1297 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1298 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1299 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1300 | UV alow; | |
1301 | UV ahigh; | |
1302 | UV blow; | |
1303 | UV bhigh; | |
1304 | ||
1305 | if (auvok) { | |
800401ee | 1306 | alow = SvUVX(svl); |
28e5dec8 | 1307 | } else { |
800401ee | 1308 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1309 | if (aiv >= 0) { |
1310 | alow = aiv; | |
1311 | auvok = TRUE; /* effectively it's a UV now */ | |
1312 | } else { | |
10be8dab KW |
1313 | /* abs, auvok == false records sign; Using 0- here and |
1314 | * later to silence bogus warning from MS VC */ | |
1315 | alow = (UV) (0 - (UV) aiv); | |
28e5dec8 JH |
1316 | } |
1317 | } | |
1318 | if (buvok) { | |
800401ee | 1319 | blow = SvUVX(svr); |
28e5dec8 | 1320 | } else { |
800401ee | 1321 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1322 | if (biv >= 0) { |
1323 | blow = biv; | |
1324 | buvok = TRUE; /* effectively it's a UV now */ | |
1325 | } else { | |
53e2bfb7 | 1326 | /* abs, buvok == false records sign */ |
10be8dab | 1327 | blow = (UV) (0 - (UV) biv); |
28e5dec8 JH |
1328 | } |
1329 | } | |
1330 | ||
1331 | /* If this does sign extension on unsigned it's time for plan B */ | |
1332 | ahigh = alow >> (4 * sizeof (UV)); | |
1333 | alow &= botmask; | |
1334 | bhigh = blow >> (4 * sizeof (UV)); | |
1335 | blow &= botmask; | |
1336 | if (ahigh && bhigh) { | |
6f207bd3 | 1337 | NOOP; |
28e5dec8 JH |
1338 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1339 | which is overflow. Drop to NVs below. */ | |
1340 | } else if (!ahigh && !bhigh) { | |
1341 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1342 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1343 | const UV product = alow * blow; |
28e5dec8 JH |
1344 | if (auvok == buvok) { |
1345 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1346 | SP--; | |
1347 | SETu( product ); | |
1348 | RETURN; | |
1349 | } else if (product <= (UV)IV_MIN) { | |
1350 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1351 | /* -ve result, which could overflow an IV */ | |
1352 | SP--; | |
02b08bbc DM |
1353 | /* can't negate IV_MIN, but there are aren't two |
1354 | * integers such that !ahigh && !bhigh, where the | |
1355 | * product equals 0x800....000 */ | |
1356 | assert(product != (UV)IV_MIN); | |
25716404 | 1357 | SETi( -(IV)product ); |
28e5dec8 JH |
1358 | RETURN; |
1359 | } /* else drop to NVs below. */ | |
1360 | } else { | |
1361 | /* One operand is large, 1 small */ | |
1362 | UV product_middle; | |
1363 | if (bhigh) { | |
1364 | /* swap the operands */ | |
1365 | ahigh = bhigh; | |
1366 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1367 | blow = alow; | |
1368 | alow = bhigh; | |
1369 | } | |
1370 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1371 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1372 | product_middle = ahigh * blow; | |
1373 | if (!(product_middle & topmask)) { | |
1374 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1375 | UV product_low; | |
1376 | product_middle <<= (4 * sizeof (UV)); | |
1377 | product_low = alow * blow; | |
1378 | ||
1379 | /* as for pp_add, UV + something mustn't get smaller. | |
1380 | IIRC ANSI mandates this wrapping *behaviour* for | |
1381 | unsigned whatever the actual representation*/ | |
1382 | product_low += product_middle; | |
1383 | if (product_low >= product_middle) { | |
1384 | /* didn't overflow */ | |
1385 | if (auvok == buvok) { | |
1386 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1387 | SP--; | |
1388 | SETu( product_low ); | |
1389 | RETURN; | |
1390 | } else if (product_low <= (UV)IV_MIN) { | |
1391 | /* 2s complement assumption again */ | |
1392 | /* -ve result, which could overflow an IV */ | |
1393 | SP--; | |
53e2bfb7 DM |
1394 | SETi(product_low == (UV)IV_MIN |
1395 | ? IV_MIN : -(IV)product_low); | |
28e5dec8 JH |
1396 | RETURN; |
1397 | } /* else drop to NVs below. */ | |
1398 | } | |
1399 | } /* product_middle too large */ | |
1400 | } /* ahigh && bhigh */ | |
800401ee JH |
1401 | } /* SvIOK(svl) */ |
1402 | } /* SvIOK(svr) */ | |
28e5dec8 | 1403 | #endif |
a0d0e21e | 1404 | { |
6f1401dc DM |
1405 | NV right = SvNV_nomg(svr); |
1406 | NV left = SvNV_nomg(svl); | |
230ee21f DM |
1407 | NV result = left * right; |
1408 | ||
4efa5a16 | 1409 | (void)POPs; |
1f02ab1d | 1410 | #if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1411 | if (Perl_isinf(result)) { |
1412 | Zero((U8*)&result + 8, 8, U8); | |
3ec400f5 | 1413 | } |
3ec400f5 | 1414 | #endif |
230ee21f | 1415 | SETn(result); |
a0d0e21e | 1416 | RETURN; |
79072805 | 1417 | } |
a0d0e21e LW |
1418 | } |
1419 | ||
1420 | PP(pp_divide) | |
1421 | { | |
20b7effb | 1422 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1423 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1424 | svr = TOPs; | |
1425 | svl = TOPm1s; | |
5479d192 | 1426 | /* Only try to do UV divide first |
68795e93 | 1427 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1428 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1429 | to preserve)) | |
1430 | The assumption is that it is better to use floating point divide | |
1431 | whenever possible, only doing integer divide first if we can't be sure. | |
1432 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1433 | can be too large to preserve, so don't need to compile the code to | |
1434 | test the size of UVs. */ | |
1435 | ||
00b6a411 | 1436 | #if defined(SLOPPYDIVIDE) || (defined(PERL_PRESERVE_IVUV) && !defined(NV_PRESERVES_UV)) |
5479d192 NC |
1437 | # define PERL_TRY_UV_DIVIDE |
1438 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1439 | #endif |
5479d192 NC |
1440 | |
1441 | #ifdef PERL_TRY_UV_DIVIDE | |
01f91bf2 | 1442 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
800401ee JH |
1443 | bool left_non_neg = SvUOK(svl); |
1444 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1445 | UV left; |
1446 | UV right; | |
1447 | ||
1448 | if (right_non_neg) { | |
800401ee | 1449 | right = SvUVX(svr); |
5479d192 NC |
1450 | } |
1451 | else { | |
800401ee | 1452 | const IV biv = SvIVX(svr); |
5479d192 NC |
1453 | if (biv >= 0) { |
1454 | right = biv; | |
1455 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1456 | } | |
1457 | else { | |
ad9b9a49 | 1458 | right = -(UV)biv; |
5479d192 NC |
1459 | } |
1460 | } | |
1461 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1462 | warning before dieing, hence this test goes here. | |
1463 | If it were immediately before the second SvIV_please, then | |
1464 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1465 | no inspection would give no warning. */ |
5479d192 NC |
1466 | if (right == 0) |
1467 | DIE(aTHX_ "Illegal division by zero"); | |
1468 | ||
1469 | if (left_non_neg) { | |
800401ee | 1470 | left = SvUVX(svl); |
5479d192 NC |
1471 | } |
1472 | else { | |
800401ee | 1473 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1474 | if (aiv >= 0) { |
1475 | left = aiv; | |
1476 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1477 | } | |
1478 | else { | |
ad9b9a49 | 1479 | left = -(UV)aiv; |
5479d192 NC |
1480 | } |
1481 | } | |
1482 | ||
1483 | if (left >= right | |
1484 | #ifdef SLOPPYDIVIDE | |
1485 | /* For sloppy divide we always attempt integer division. */ | |
1486 | #else | |
1487 | /* Otherwise we only attempt it if either or both operands | |
1488 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1489 | we fall through to the NV divide code below. However, |
1490 | as left >= right to ensure integer result here, we know that | |
1491 | we can skip the test on the right operand - right big | |
1492 | enough not to be preserved can't get here unless left is | |
1493 | also too big. */ | |
1494 | ||
1495 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1496 | #endif |
1497 | ) { | |
1498 | /* Integer division can't overflow, but it can be imprecise. */ | |
f1966580 TK |
1499 | |
1500 | /* Modern compilers optimize division followed by | |
1501 | * modulo into a single div instruction */ | |
1b6737cc | 1502 | const UV result = left / right; |
f1966580 | 1503 | if (left % right == 0) { |
5479d192 NC |
1504 | SP--; /* result is valid */ |
1505 | if (left_non_neg == right_non_neg) { | |
1506 | /* signs identical, result is positive. */ | |
1507 | SETu( result ); | |
1508 | RETURN; | |
1509 | } | |
1510 | /* 2s complement assumption */ | |
1511 | if (result <= (UV)IV_MIN) | |
02b08bbc | 1512 | SETi(result == (UV)IV_MIN ? IV_MIN : -(IV)result); |
5479d192 NC |
1513 | else { |
1514 | /* It's exact but too negative for IV. */ | |
1515 | SETn( -(NV)result ); | |
1516 | } | |
1517 | RETURN; | |
1518 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1519 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
01f91bf2 | 1520 | } /* one operand wasn't SvIOK */ |
5479d192 NC |
1521 | #endif /* PERL_TRY_UV_DIVIDE */ |
1522 | { | |
6f1401dc DM |
1523 | NV right = SvNV_nomg(svr); |
1524 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1525 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1526 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1527 | if (! Perl_isnan(right) && right == 0.0) | |
1528 | #else | |
659c4b96 | 1529 | if (right == 0.0) |
ebc6a117 | 1530 | #endif |
5479d192 NC |
1531 | DIE(aTHX_ "Illegal division by zero"); |
1532 | PUSHn( left / right ); | |
1533 | RETURN; | |
79072805 | 1534 | } |
a0d0e21e LW |
1535 | } |
1536 | ||
1537 | PP(pp_modulo) | |
1538 | { | |
20b7effb | 1539 | dSP; dATARGET; |
6f1401dc | 1540 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); |
a0d0e21e | 1541 | { |
9c5ffd7c JH |
1542 | UV left = 0; |
1543 | UV right = 0; | |
dc656993 JH |
1544 | bool left_neg = FALSE; |
1545 | bool right_neg = FALSE; | |
e2c88acc NC |
1546 | bool use_double = FALSE; |
1547 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1548 | NV dright = 0.0; |
1549 | NV dleft = 0.0; | |
6f1401dc DM |
1550 | SV * const svr = TOPs; |
1551 | SV * const svl = TOPm1s; | |
01f91bf2 | 1552 | if (SvIV_please_nomg(svr)) { |
800401ee | 1553 | right_neg = !SvUOK(svr); |
e2c88acc | 1554 | if (!right_neg) { |
800401ee | 1555 | right = SvUVX(svr); |
e2c88acc | 1556 | } else { |
800401ee | 1557 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1558 | if (biv >= 0) { |
1559 | right = biv; | |
1560 | right_neg = FALSE; /* effectively it's a UV now */ | |
1561 | } else { | |
10be8dab | 1562 | right = (UV) (0 - (UV) biv); |
e2c88acc NC |
1563 | } |
1564 | } | |
1565 | } | |
1566 | else { | |
6f1401dc | 1567 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1568 | right_neg = dright < 0; |
1569 | if (right_neg) | |
1570 | dright = -dright; | |
e2c88acc NC |
1571 | if (dright < UV_MAX_P1) { |
1572 | right = U_V(dright); | |
1573 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1574 | } else { | |
1575 | use_double = TRUE; | |
1576 | } | |
787eafbd | 1577 | } |
a0d0e21e | 1578 | |
e2c88acc NC |
1579 | /* At this point use_double is only true if right is out of range for |
1580 | a UV. In range NV has been rounded down to nearest UV and | |
1581 | use_double false. */ | |
01f91bf2 | 1582 | if (!use_double && SvIV_please_nomg(svl)) { |
800401ee | 1583 | left_neg = !SvUOK(svl); |
e2c88acc | 1584 | if (!left_neg) { |
800401ee | 1585 | left = SvUVX(svl); |
e2c88acc | 1586 | } else { |
800401ee | 1587 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1588 | if (aiv >= 0) { |
1589 | left = aiv; | |
1590 | left_neg = FALSE; /* effectively it's a UV now */ | |
1591 | } else { | |
10be8dab | 1592 | left = (UV) (0 - (UV) aiv); |
e2c88acc NC |
1593 | } |
1594 | } | |
e2c88acc | 1595 | } |
787eafbd | 1596 | else { |
6f1401dc | 1597 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1598 | left_neg = dleft < 0; |
1599 | if (left_neg) | |
1600 | dleft = -dleft; | |
68dc0745 | 1601 | |
e2c88acc NC |
1602 | /* This should be exactly the 5.6 behaviour - if left and right are |
1603 | both in range for UV then use U_V() rather than floor. */ | |
1604 | if (!use_double) { | |
1605 | if (dleft < UV_MAX_P1) { | |
1606 | /* right was in range, so is dleft, so use UVs not double. | |
1607 | */ | |
1608 | left = U_V(dleft); | |
1609 | } | |
1610 | /* left is out of range for UV, right was in range, so promote | |
1611 | right (back) to double. */ | |
1612 | else { | |
1613 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1614 | consistent with the implicit +0 floor in the U_V() | |
1615 | inside the #if 1. */ | |
1616 | dleft = Perl_floor(dleft + 0.5); | |
1617 | use_double = TRUE; | |
1618 | if (dright_valid) | |
1619 | dright = Perl_floor(dright + 0.5); | |
1620 | else | |
1621 | dright = right; | |
1622 | } | |
1623 | } | |
1624 | } | |
6f1401dc | 1625 | sp -= 2; |
787eafbd | 1626 | if (use_double) { |
65202027 | 1627 | NV dans; |
787eafbd | 1628 | |
659c4b96 | 1629 | if (!dright) |
cea2e8a9 | 1630 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1631 | |
65202027 | 1632 | dans = Perl_fmod(dleft, dright); |
659c4b96 | 1633 | if ((left_neg != right_neg) && dans) |
787eafbd IZ |
1634 | dans = dright - dans; |
1635 | if (right_neg) | |
1636 | dans = -dans; | |
1637 | sv_setnv(TARG, dans); | |
1638 | } | |
1639 | else { | |
1640 | UV ans; | |
1641 | ||
787eafbd | 1642 | if (!right) |
cea2e8a9 | 1643 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1644 | |
1645 | ans = left % right; | |
1646 | if ((left_neg != right_neg) && ans) | |
1647 | ans = right - ans; | |
1648 | if (right_neg) { | |
1649 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1650 | /* could change -foo to be (~foo)+1 instead */ | |
1651 | if (ans <= ~((UV)IV_MAX)+1) | |
1652 | sv_setiv(TARG, ~ans+1); | |
1653 | else | |
65202027 | 1654 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1655 | } |
1656 | else | |
1657 | sv_setuv(TARG, ans); | |
1658 | } | |
1659 | PUSHTARG; | |
1660 | RETURN; | |
79072805 | 1661 | } |
a0d0e21e | 1662 | } |
79072805 | 1663 | |
a0d0e21e LW |
1664 | PP(pp_repeat) |
1665 | { | |
20b7effb | 1666 | dSP; dATARGET; |
eb578fdb | 1667 | IV count; |
6f1401dc | 1668 | SV *sv; |
02a7a248 | 1669 | bool infnan = FALSE; |
490b24f6 | 1670 | const U8 gimme = GIMME_V; |
6f1401dc | 1671 | |
490b24f6 | 1672 | if (gimme == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
6f1401dc DM |
1673 | /* TODO: think of some way of doing list-repeat overloading ??? */ |
1674 | sv = POPs; | |
1675 | SvGETMAGIC(sv); | |
1676 | } | |
1677 | else { | |
3a100dab FC |
1678 | if (UNLIKELY(PL_op->op_private & OPpREPEAT_DOLIST)) { |
1679 | /* The parser saw this as a list repeat, and there | |
1680 | are probably several items on the stack. But we're | |
1681 | in scalar/void context, and there's no pp_list to save us | |
1682 | now. So drop the rest of the items -- robin@kitsite.com | |
1683 | */ | |
1684 | dMARK; | |
1685 | if (MARK + 1 < SP) { | |
1686 | MARK[1] = TOPm1s; | |
1687 | MARK[2] = TOPs; | |
1688 | } | |
1689 | else { | |
1690 | dTOPss; | |
1691 | ASSUME(MARK + 1 == SP); | |
d81b7735 TC |
1692 | MEXTEND(SP, 1); |
1693 | PUSHs(sv); | |
3a100dab FC |
1694 | MARK[1] = &PL_sv_undef; |
1695 | } | |
1696 | SP = MARK + 2; | |
1697 | } | |
6f1401dc DM |
1698 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); |
1699 | sv = POPs; | |
1700 | } | |
1701 | ||
2b573ace JH |
1702 | if (SvIOKp(sv)) { |
1703 | if (SvUOK(sv)) { | |
6f1401dc | 1704 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1705 | if (uv > IV_MAX) |
1706 | count = IV_MAX; /* The best we can do? */ | |
1707 | else | |
1708 | count = uv; | |
1709 | } else { | |
b3211734 | 1710 | count = SvIV_nomg(sv); |
2b573ace JH |
1711 | } |
1712 | } | |
1713 | else if (SvNOKp(sv)) { | |
02a7a248 JH |
1714 | const NV nv = SvNV_nomg(sv); |
1715 | infnan = Perl_isinfnan(nv); | |
1716 | if (UNLIKELY(infnan)) { | |
1717 | count = 0; | |
1718 | } else { | |
1719 | if (nv < 0.0) | |
1720 | count = -1; /* An arbitrary negative integer */ | |
1721 | else | |
1722 | count = (IV)nv; | |
1723 | } | |
2b573ace JH |
1724 | } |
1725 | else | |
02a7a248 | 1726 | count = SvIV_nomg(sv); |
6f1401dc | 1727 | |
02a7a248 JH |
1728 | if (infnan) { |
1729 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
1730 | "Non-finite repeat count does nothing"); | |
1731 | } else if (count < 0) { | |
b3211734 KW |
1732 | count = 0; |
1733 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
02a7a248 | 1734 | "Negative repeat count does nothing"); |
b3211734 KW |
1735 | } |
1736 | ||
490b24f6 | 1737 | if (gimme == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1738 | dMARK; |
052a7c76 | 1739 | const SSize_t items = SP - MARK; |
da9e430b | 1740 | const U8 mod = PL_op->op_flags & OPf_MOD; |
79072805 | 1741 | |
a0d0e21e | 1742 | if (count > 1) { |
052a7c76 | 1743 | SSize_t max; |
b3b27d01 | 1744 | |
052a7c76 DM |
1745 | if ( items > SSize_t_MAX / count /* max would overflow */ |
1746 | /* repeatcpy would overflow */ | |
1747 | || items > I32_MAX / (I32)sizeof(SV *) | |
b3b27d01 DM |
1748 | ) |
1749 | Perl_croak(aTHX_ "%s","Out of memory during list extend"); | |
1750 | max = items * count; | |
1751 | MEXTEND(MARK, max); | |
1752 | ||
a0d0e21e | 1753 | while (SP > MARK) { |
60779a30 DM |
1754 | if (*SP) { |
1755 | if (mod && SvPADTMP(*SP)) { | |
da9e430b | 1756 | *SP = sv_mortalcopy(*SP); |
60779a30 | 1757 | } |
976c8a39 | 1758 | SvTEMP_off((*SP)); |
da9e430b | 1759 | } |
a0d0e21e | 1760 | SP--; |
79072805 | 1761 | } |
a0d0e21e LW |
1762 | MARK++; |
1763 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1764 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1765 | SP += max; |
79072805 | 1766 | } |
a0d0e21e | 1767 | else if (count <= 0) |
052a7c76 | 1768 | SP = MARK; |
79072805 | 1769 | } |
a0d0e21e | 1770 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1771 | SV * const tmpstr = POPs; |
a0d0e21e | 1772 | STRLEN len; |
9b877dbb | 1773 | bool isutf; |
a0d0e21e | 1774 | |
6f1401dc DM |
1775 | if (TARG != tmpstr) |
1776 | sv_setsv_nomg(TARG, tmpstr); | |
1777 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1778 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1779 | if (count != 1) { |
1780 | if (count < 1) | |
1781 | SvCUR_set(TARG, 0); | |
1782 | else { | |
b3b27d01 DM |
1783 | STRLEN max; |
1784 | ||
1785 | if ( len > (MEM_SIZE_MAX-1) / (UV)count /* max would overflow */ | |
1786 | || len > (U32)I32_MAX /* repeatcpy would overflow */ | |
1787 | ) | |
1788 | Perl_croak(aTHX_ "%s", | |
1789 | "Out of memory during string extend"); | |
1790 | max = (UV)count * len + 1; | |
1791 | SvGROW(TARG, max); | |
1792 | ||
a0d0e21e | 1793 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1794 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1795 | } |
a0d0e21e | 1796 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1797 | } |
dfcb284a GS |
1798 | if (isutf) |
1799 | (void)SvPOK_only_UTF8(TARG); | |
1800 | else | |
1801 | (void)SvPOK_only(TARG); | |
b80b6069 | 1802 | |
a0d0e21e | 1803 | PUSHTARG; |
79072805 | 1804 | } |
a0d0e21e LW |
1805 | RETURN; |
1806 | } | |
79072805 | 1807 | |
a0d0e21e LW |
1808 | PP(pp_subtract) |
1809 | { | |
20b7effb | 1810 | dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1811 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1812 | svr = TOPs; | |
1813 | svl = TOPm1s; | |
230ee21f | 1814 | |
28e5dec8 | 1815 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1816 | |
1817 | /* special-case some simple common cases */ | |
1818 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1819 | IV il, ir; | |
1820 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1821 | if (flags & SVf_IOK) { | |
1822 | /* both args are simple IVs */ | |
1823 | UV topl, topr; | |
1824 | il = SvIVX(svl); | |
1825 | ir = SvIVX(svr); | |
1826 | do_iv: | |
1827 | topl = ((UV)il) >> (UVSIZE * 8 - 2); | |
1828 | topr = ((UV)ir) >> (UVSIZE * 8 - 2); | |
1829 | ||
1830 | /* if both are in a range that can't under/overflow, do a | |
1831 | * simple integer subtract: if the top of both numbers | |
1832 | * are 00 or 11, then it's safe */ | |
1833 | if (!( ((topl+1) | (topr+1)) & 2)) { | |
1834 | SP--; | |
1835 | TARGi(il - ir, 0); /* args not GMG, so can't be tainted */ | |
1836 | SETs(TARG); | |
1837 | RETURN; | |
1838 | } | |
1839 | goto generic; | |
1840 | } | |
1841 | else if (flags & SVf_NOK) { | |
1842 | /* both args are NVs */ | |
1843 | NV nl = SvNVX(svl); | |
1844 | NV nr = SvNVX(svr); | |
1845 | ||
3a019afd | 1846 | if (lossless_NV_to_IV(nl, &il) && lossless_NV_to_IV(nr, &ir)) { |
230ee21f DM |
1847 | /* nothing was lost by converting to IVs */ |
1848 | goto do_iv; | |
3a019afd | 1849 | } |
230ee21f DM |
1850 | SP--; |
1851 | TARGn(nl - nr, 0); /* args not GMG, so can't be tainted */ | |
1852 | SETs(TARG); | |
1853 | RETURN; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | generic: | |
1858 | ||
1859 | useleft = USE_LEFT(svl); | |
7dca457a NC |
1860 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1861 | "bad things" happen if you rely on signed integers wrapping. */ | |
01f91bf2 | 1862 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1863 | /* Unless the left argument is integer in range we are going to have to |
1864 | use NV maths. Hence only attempt to coerce the right argument if | |
1865 | we know the left is integer. */ | |
eb578fdb | 1866 | UV auv = 0; |
9c5ffd7c | 1867 | bool auvok = FALSE; |
7dca457a NC |
1868 | bool a_valid = 0; |
1869 | ||
28e5dec8 | 1870 | if (!useleft) { |
7dca457a NC |
1871 | auv = 0; |
1872 | a_valid = auvok = 1; | |
1873 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1874 | } else { |
1875 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1876 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1877 | if ((auvok = SvUOK(svl))) |
1878 | auv = SvUVX(svl); | |
7dca457a | 1879 | else { |
eb578fdb | 1880 | const IV aiv = SvIVX(svl); |
7dca457a NC |
1881 | if (aiv >= 0) { |
1882 | auv = aiv; | |
1883 | auvok = 1; /* Now acting as a sign flag. */ | |
ad9b9a49 | 1884 | } else { |
10be8dab | 1885 | auv = (UV) (0 - (UV) aiv); |
28e5dec8 | 1886 | } |
7dca457a NC |
1887 | } |
1888 | a_valid = 1; | |
1889 | } | |
1890 | } | |
1891 | if (a_valid) { | |
1892 | bool result_good = 0; | |
1893 | UV result; | |
eb578fdb | 1894 | UV buv; |
800401ee | 1895 | bool buvok = SvUOK(svr); |
a8e41ef4 | 1896 | |
7dca457a | 1897 | if (buvok) |
800401ee | 1898 | buv = SvUVX(svr); |
7dca457a | 1899 | else { |
eb578fdb | 1900 | const IV biv = SvIVX(svr); |
7dca457a NC |
1901 | if (biv >= 0) { |
1902 | buv = biv; | |
1903 | buvok = 1; | |
1904 | } else | |
10be8dab | 1905 | buv = (UV) (0 - (UV) biv); |
7dca457a NC |
1906 | } |
1907 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1908 | else "IV" now, independent of how it came in. |
7dca457a NC |
1909 | if a, b represents positive, A, B negative, a maps to -A etc |
1910 | a - b => (a - b) | |
1911 | A - b => -(a + b) | |
1912 | a - B => (a + b) | |
1913 | A - B => -(a - b) | |
1914 | all UV maths. negate result if A negative. | |
1915 | subtract if signs same, add if signs differ. */ | |
1916 | ||
1917 | if (auvok ^ buvok) { | |
1918 | /* Signs differ. */ | |
1919 | result = auv + buv; | |
1920 | if (result >= auv) | |
1921 | result_good = 1; | |
1922 | } else { | |
1923 | /* Signs same */ | |
1924 | if (auv >= buv) { | |
1925 | result = auv - buv; | |
1926 | /* Must get smaller */ | |
1927 | if (result <= auv) | |
1928 | result_good = 1; | |
1929 | } else { | |
1930 | result = buv - auv; | |
1931 | if (result <= buv) { | |
1932 | /* result really should be -(auv-buv). as its negation | |
1933 | of true value, need to swap our result flag */ | |
1934 | auvok = !auvok; | |
1935 | result_good = 1; | |
28e5dec8 | 1936 | } |
28e5dec8 JH |
1937 | } |
1938 | } | |
7dca457a NC |
1939 | if (result_good) { |
1940 | SP--; | |
1941 | if (auvok) | |
1942 | SETu( result ); | |
1943 | else { | |
1944 | /* Negate result */ | |
1945 | if (result <= (UV)IV_MIN) | |
53e2bfb7 DM |
1946 | SETi(result == (UV)IV_MIN |
1947 | ? IV_MIN : -(IV)result); | |
7dca457a NC |
1948 | else { |
1949 | /* result valid, but out of range for IV. */ | |
1950 | SETn( -(NV)result ); | |
1951 | } | |
1952 | } | |
1953 | RETURN; | |
1954 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1955 | } |
1956 | } | |
230ee21f DM |
1957 | #else |
1958 | useleft = USE_LEFT(svl); | |
28e5dec8 | 1959 | #endif |
a0d0e21e | 1960 | { |
6f1401dc | 1961 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1962 | (void)POPs; |
1963 | ||
28e5dec8 JH |
1964 | if (!useleft) { |
1965 | /* left operand is undef, treat as zero - value */ | |
1966 | SETn(-value); | |
1967 | RETURN; | |
1968 | } | |
6f1401dc | 1969 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1970 | RETURN; |
79072805 | 1971 | } |
a0d0e21e | 1972 | } |
79072805 | 1973 | |
b3498293 JH |
1974 | #define IV_BITS (IVSIZE * 8) |
1975 | ||
1976 | static UV S_uv_shift(UV uv, int shift, bool left) | |
1977 | { | |
1978 | if (shift < 0) { | |
1979 | shift = -shift; | |
1980 | left = !left; | |
1981 | } | |
bae047b6 | 1982 | if (UNLIKELY(shift >= IV_BITS)) { |
b3498293 JH |
1983 | return 0; |
1984 | } | |
1985 | return left ? uv << shift : uv >> shift; | |
1986 | } | |
1987 | ||
1988 | static IV S_iv_shift(IV iv, int shift, bool left) | |
1989 | { | |
190e86d7 KW |
1990 | if (shift < 0) { |
1991 | shift = -shift; | |
1992 | left = !left; | |
1993 | } | |
814735a3 | 1994 | |
bae047b6 | 1995 | if (UNLIKELY(shift >= IV_BITS)) { |
190e86d7 KW |
1996 | return iv < 0 && !left ? -1 : 0; |
1997 | } | |
1998 | ||
814735a3 KW |
1999 | /* For left shifts, perl 5 has chosen to treat the value as unsigned for |
2000 | * the * purposes of shifting, then cast back to signed. This is very | |
2001 | * different from perl 6: | |
2002 | * | |
2003 | * $ perl6 -e 'say -2 +< 5' | |
2004 | * -64 | |
2005 | * | |
2006 | * $ ./perl -le 'print -2 << 5' | |
2007 | * 18446744073709551552 | |
2008 | * */ | |
2009 | if (left) { | |
2010 | if (iv == IV_MIN) { /* Casting this to a UV is undefined behavior */ | |
2011 | return 0; | |
2012 | } | |
2013 | return (IV) (((UV) iv) << shift); | |
2014 | } | |
2015 | ||
2016 | /* Here is right shift */ | |
2017 | return iv >> shift; | |
b3498293 JH |
2018 | } |
2019 | ||
2020 | #define UV_LEFT_SHIFT(uv, shift) S_uv_shift(uv, shift, TRUE) | |
2021 | #define UV_RIGHT_SHIFT(uv, shift) S_uv_shift(uv, shift, FALSE) | |
2022 | #define IV_LEFT_SHIFT(iv, shift) S_iv_shift(iv, shift, TRUE) | |
2023 | #define IV_RIGHT_SHIFT(iv, shift) S_iv_shift(iv, shift, FALSE) | |
2024 | ||
a0d0e21e LW |
2025 | PP(pp_left_shift) |
2026 | { | |
20b7effb | 2027 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2028 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2029 | svr = POPs; |
2030 | svl = TOPs; | |
a0d0e21e | 2031 | { |
6f1401dc | 2032 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2033 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2034 | SETi(IV_LEFT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2035 | } |
2036 | else { | |
b3498293 | 2037 | SETu(UV_LEFT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2038 | } |
55497cff | 2039 | RETURN; |
79072805 | 2040 | } |
a0d0e21e | 2041 | } |
79072805 | 2042 | |
a0d0e21e LW |
2043 | PP(pp_right_shift) |
2044 | { | |
20b7effb | 2045 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2046 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2047 | svr = POPs; |
2048 | svl = TOPs; | |
a0d0e21e | 2049 | { |
6f1401dc | 2050 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2051 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2052 | SETi(IV_RIGHT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2053 | } |
2054 | else { | |
b3498293 | 2055 | SETu(UV_RIGHT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2056 | } |
a0d0e21e | 2057 | RETURN; |
93a17b20 | 2058 | } |
79072805 LW |
2059 | } |
2060 | ||
a0d0e21e | 2061 | PP(pp_lt) |
79072805 | 2062 | { |
20b7effb | 2063 | dSP; |
33efebe6 DM |
2064 | SV *left, *right; |
2065 | ||
0872de45 | 2066 | tryAMAGICbin_MG(lt_amg, AMGf_numeric); |
33efebe6 DM |
2067 | right = POPs; |
2068 | left = TOPs; | |
2069 | SETs(boolSV( | |
2070 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2071 | ? (SvIVX(left) < SvIVX(right)) | |
2072 | : (do_ncmp(left, right) == -1) | |
2073 | )); | |
2074 | RETURN; | |
a0d0e21e | 2075 | } |
79072805 | 2076 | |
a0d0e21e LW |
2077 | PP(pp_gt) |
2078 | { | |
20b7effb | 2079 | dSP; |
33efebe6 | 2080 | SV *left, *right; |
1b6737cc | 2081 | |
0872de45 | 2082 | tryAMAGICbin_MG(gt_amg, AMGf_numeric); |
33efebe6 DM |
2083 | right = POPs; |
2084 | left = TOPs; | |
2085 | SETs(boolSV( | |
2086 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2087 | ? (SvIVX(left) > SvIVX(right)) | |
2088 | : (do_ncmp(left, right) == 1) | |
2089 | )); | |
2090 | RETURN; | |
a0d0e21e LW |
2091 | } |
2092 | ||
2093 | PP(pp_le) | |
2094 | { | |
20b7effb | 2095 | dSP; |
33efebe6 | 2096 | SV *left, *right; |
1b6737cc | 2097 | |
0872de45 | 2098 | tryAMAGICbin_MG(le_amg, AMGf_numeric); |
33efebe6 DM |
2099 | right = POPs; |
2100 | left = TOPs; | |
2101 | SETs(boolSV( | |
2102 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2103 | ? (SvIVX(left) <= SvIVX(right)) | |
2104 | : (do_ncmp(left, right) <= 0) | |
2105 | )); | |
2106 | RETURN; | |
a0d0e21e LW |
2107 | } |
2108 | ||
2109 | PP(pp_ge) | |
2110 | { | |
20b7effb | 2111 | dSP; |
33efebe6 DM |
2112 | SV *left, *right; |
2113 | ||
0872de45 | 2114 | tryAMAGICbin_MG(ge_amg, AMGf_numeric); |
33efebe6 DM |
2115 | right = POPs; |
2116 | left = TOPs; | |
2117 | SETs(boolSV( | |
2118 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2119 | ? (SvIVX(left) >= SvIVX(right)) | |
2120 | : ( (do_ncmp(left, right) & 2) == 0) | |
2121 | )); | |
2122 | RETURN; | |
2123 | } | |
1b6737cc | 2124 | |
33efebe6 DM |
2125 | PP(pp_ne) |
2126 | { | |
20b7effb | 2127 | dSP; |
33efebe6 DM |
2128 | SV *left, *right; |
2129 | ||
0872de45 | 2130 | tryAMAGICbin_MG(ne_amg, AMGf_numeric); |
33efebe6 DM |
2131 | right = POPs; |
2132 | left = TOPs; | |
2133 | SETs(boolSV( | |
2134 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2135 | ? (SvIVX(left) != SvIVX(right)) | |
2136 | : (do_ncmp(left, right) != 0) | |
2137 | )); | |
2138 | RETURN; | |
2139 | } | |
1b6737cc | 2140 | |
33efebe6 DM |
2141 | /* compare left and right SVs. Returns: |
2142 | * -1: < | |
2143 | * 0: == | |
2144 | * 1: > | |
2145 | * 2: left or right was a NaN | |
2146 | */ | |
2147 | I32 | |
2148 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2149 | { | |
33efebe6 DM |
2150 | PERL_ARGS_ASSERT_DO_NCMP; |
2151 | #ifdef PERL_PRESERVE_IVUV | |
33efebe6 | 2152 | /* Fortunately it seems NaN isn't IOK */ |
01f91bf2 | 2153 | if (SvIV_please_nomg(right) && SvIV_please_nomg(left)) { |
33efebe6 DM |
2154 | if (!SvUOK(left)) { |
2155 | const IV leftiv = SvIVX(left); | |
2156 | if (!SvUOK(right)) { | |
2157 | /* ## IV <=> IV ## */ | |
2158 | const IV rightiv = SvIVX(right); | |
2159 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2160 | } |
33efebe6 DM |
2161 | /* ## IV <=> UV ## */ |
2162 | if (leftiv < 0) | |
2163 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2164 | return -1; | |
2165 | { | |
2166 | const UV rightuv = SvUVX(right); | |
2167 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2168 | } |
28e5dec8 | 2169 | } |
79072805 | 2170 | |
33efebe6 DM |
2171 | if (SvUOK(right)) { |
2172 | /* ## UV <=> UV ## */ | |
2173 | const UV leftuv = SvUVX(left); | |
2174 | const UV rightuv = SvUVX(right); | |
2175 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2176 | } |
33efebe6 DM |
2177 | /* ## UV <=> IV ## */ |
2178 | { | |
2179 | const IV rightiv = SvIVX(right); | |
2180 | if (rightiv < 0) | |
2181 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2182 | return 1; | |
2183 | { | |
2184 | const UV leftuv = SvUVX(left); | |
2185 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2186 | } |
28e5dec8 | 2187 | } |
e5964223 | 2188 | NOT_REACHED; /* NOTREACHED */ |
28e5dec8 JH |
2189 | } |
2190 | #endif | |
a0d0e21e | 2191 | { |
33efebe6 DM |
2192 | NV const rnv = SvNV_nomg(right); |
2193 | NV const lnv = SvNV_nomg(left); | |
2194 | ||
cab190d4 | 2195 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2196 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2197 | return 2; | |
2198 | } | |
2199 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2200 | #else |
33efebe6 DM |
2201 | if (lnv < rnv) |
2202 | return -1; | |
2203 | if (lnv > rnv) | |
2204 | return 1; | |
659c4b96 | 2205 | if (lnv == rnv) |
33efebe6 DM |
2206 | return 0; |
2207 | return 2; | |
cab190d4 | 2208 | #endif |
a0d0e21e | 2209 | } |
79072805 LW |
2210 | } |
2211 | ||
33efebe6 | 2212 | |
a0d0e21e | 2213 | PP(pp_ncmp) |
79072805 | 2214 | { |
20b7effb | 2215 | dSP; |
33efebe6 DM |
2216 | SV *left, *right; |
2217 | I32 value; | |
a42d0242 | 2218 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2219 | right = POPs; |
2220 | left = TOPs; | |
2221 | value = do_ncmp(left, right); | |
2222 | if (value == 2) { | |
3280af22 | 2223 | SETs(&PL_sv_undef); |
79072805 | 2224 | } |
33efebe6 DM |
2225 | else { |
2226 | dTARGET; | |
2227 | SETi(value); | |
2228 | } | |
2229 | RETURN; | |
a0d0e21e | 2230 | } |
79072805 | 2231 | |
b1c05ba5 DM |
2232 | |
2233 | /* also used for: pp_sge() pp_sgt() pp_slt() */ | |
2234 | ||
afd9910b | 2235 | PP(pp_sle) |
a0d0e21e | 2236 | { |
20b7effb | 2237 | dSP; |
79072805 | 2238 | |
afd9910b NC |
2239 | int amg_type = sle_amg; |
2240 | int multiplier = 1; | |
2241 | int rhs = 1; | |
79072805 | 2242 | |
afd9910b NC |
2243 | switch (PL_op->op_type) { |
2244 | case OP_SLT: | |
2245 | amg_type = slt_amg; | |
2246 | /* cmp < 0 */ | |
2247 | rhs = 0; | |
2248 | break; | |
2249 | case OP_SGT: | |
2250 | amg_type = sgt_amg; | |
2251 | /* cmp > 0 */ | |
2252 | multiplier = -1; | |
2253 | rhs = 0; | |
2254 | break; | |
2255 | case OP_SGE: | |
2256 | amg_type = sge_amg; | |
2257 | /* cmp >= 0 */ | |
2258 | multiplier = -1; | |
2259 | break; | |
79072805 | 2260 | } |
79072805 | 2261 | |
0872de45 | 2262 | tryAMAGICbin_MG(amg_type, 0); |
a0d0e21e LW |
2263 | { |
2264 | dPOPTOPssrl; | |
130c5df3 | 2265 | const int cmp = |
5778acb6 | 2266 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2267 | (IN_LC_RUNTIME(LC_COLLATE)) |
2268 | ? sv_cmp_locale_flags(left, right, 0) | |
2269 | : | |
2270 | #endif | |
2271 | sv_cmp_flags(left, right, 0); | |
afd9910b | 2272 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2273 | RETURN; |
2274 | } | |
2275 | } | |
79072805 | 2276 | |
36477c24 | 2277 | PP(pp_seq) |
2278 | { | |
20b7effb | 2279 | dSP; |
0872de45 | 2280 | tryAMAGICbin_MG(seq_amg, 0); |
36477c24 | 2281 | { |
2282 | dPOPTOPssrl; | |
078504b2 | 2283 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2284 | RETURN; |
2285 | } | |
2286 | } | |
79072805 | 2287 | |
a0d0e21e | 2288 | PP(pp_sne) |
79072805 | 2289 | { |
20b7effb | 2290 | dSP; |
0872de45 | 2291 | tryAMAGICbin_MG(sne_amg, 0); |
a0d0e21e LW |
2292 | { |
2293 | dPOPTOPssrl; | |
078504b2 | 2294 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2295 | RETURN; |
463ee0b2 | 2296 | } |
79072805 LW |
2297 | } |
2298 | ||
a0d0e21e | 2299 | PP(pp_scmp) |
79072805 | 2300 | { |
20b7effb | 2301 | dSP; dTARGET; |
6f1401dc | 2302 | tryAMAGICbin_MG(scmp_amg, 0); |
a0d0e21e LW |
2303 | { |
2304 | dPOPTOPssrl; | |
130c5df3 | 2305 | const int cmp = |
5778acb6 | 2306 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2307 | (IN_LC_RUNTIME(LC_COLLATE)) |
2308 | ? sv_cmp_locale_flags(left, right, 0) | |
2309 | : | |
2310 | #endif | |
2311 | sv_cmp_flags(left, right, 0); | |
bbce6d69 | 2312 | SETi( cmp ); |
a0d0e21e LW |
2313 | RETURN; |
2314 | } | |
2315 | } | |
79072805 | 2316 | |
55497cff | 2317 | PP(pp_bit_and) |
2318 | { | |
20b7effb | 2319 | dSP; dATARGET; |
6f1401dc | 2320 | tryAMAGICbin_MG(band_amg, AMGf_assign); |
a0d0e21e LW |
2321 | { |
2322 | dPOPTOPssrl; | |
4633a7c4 | 2323 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2324 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2325 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2326 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2327 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2328 | SETi(i); |
d0ba1bd2 JH |
2329 | } |
2330 | else { | |
1b6737cc | 2331 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2332 | SETu(u); |
d0ba1bd2 | 2333 | } |
5ee80e13 | 2334 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2335 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2336 | } |
2337 | else { | |
533c011a | 2338 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2339 | SETTARG; |
2340 | } | |
2341 | RETURN; | |
2342 | } | |
2343 | } | |
79072805 | 2344 | |
5d01050a FC |
2345 | PP(pp_nbit_and) |
2346 | { | |
2347 | dSP; | |
636ac8fc | 2348 | tryAMAGICbin_MG(band_amg, AMGf_assign|AMGf_numarg); |
5d01050a FC |
2349 | { |
2350 | dATARGET; dPOPTOPssrl; | |
2351 | if (PL_op->op_private & HINT_INTEGER) { | |
2352 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); | |
2353 | SETi(i); | |
2354 | } | |
2355 | else { | |
2356 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); | |
2357 | SETu(u); | |
2358 | } | |
2359 | } | |
2360 | RETURN; | |
2361 | } | |
2362 | ||
2363 | PP(pp_sbit_and) | |
2364 | { | |
2365 | dSP; | |
2366 | tryAMAGICbin_MG(sband_amg, AMGf_assign); | |
2367 | { | |
2368 | dATARGET; dPOPTOPssrl; | |
2369 | do_vop(OP_BIT_AND, TARG, left, right); | |
2370 | RETSETTARG; | |
2371 | } | |
2372 | } | |
b1c05ba5 DM |
2373 | |
2374 | /* also used for: pp_bit_xor() */ | |
2375 | ||
a0d0e21e LW |
2376 | PP(pp_bit_or) |
2377 | { | |
20b7effb | 2378 | dSP; dATARGET; |
3658c1f1 NC |
2379 | const int op_type = PL_op->op_type; |
2380 | ||
6f1401dc | 2381 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2382 | { |
2383 | dPOPTOPssrl; | |
4633a7c4 | 2384 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2385 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2386 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2387 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2388 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2389 | const IV r = SvIV_nomg(right); | |
2390 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2391 | SETi(result); | |
d0ba1bd2 JH |
2392 | } |
2393 | else { | |
3658c1f1 NC |
2394 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2395 | const UV r = SvUV_nomg(right); | |
2396 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2397 | SETu(result); | |
d0ba1bd2 | 2398 | } |
5ee80e13 | 2399 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2400 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2401 | } |
2402 | else { | |
3658c1f1 | 2403 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2404 | SETTARG; |
2405 | } | |
2406 | RETURN; | |
79072805 | 2407 | } |
a0d0e21e | 2408 | } |
79072805 | 2409 | |
5d01050a FC |
2410 | /* also used for: pp_nbit_xor() */ |
2411 | ||
2412 | PP(pp_nbit_or) | |
2413 | { | |
2414 | dSP; | |
2415 | const int op_type = PL_op->op_type; | |
2416 | ||
2417 | tryAMAGICbin_MG((op_type == OP_NBIT_OR ? bor_amg : bxor_amg), | |
636ac8fc | 2418 | AMGf_assign|AMGf_numarg); |
5d01050a FC |
2419 | { |
2420 | dATARGET; dPOPTOPssrl; | |
2421 | if (PL_op->op_private & HINT_INTEGER) { | |
2422 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); | |
2423 | const IV r = SvIV_nomg(right); | |
2424 | const IV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2425 | SETi(result); | |
2426 | } | |
2427 | else { | |
2428 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); | |
2429 | const UV r = SvUV_nomg(right); | |
2430 | const UV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2431 | SETu(result); | |
2432 | } | |
2433 | } | |
2434 | RETURN; | |
2435 | } | |
2436 | ||
2437 | /* also used for: pp_sbit_xor() */ | |
2438 | ||
2439 | PP(pp_sbit_or) | |
2440 | { | |
2441 | dSP; | |
2442 | const int op_type = PL_op->op_type; | |
2443 | ||
2444 | tryAMAGICbin_MG((op_type == OP_SBIT_OR ? sbor_amg : sbxor_amg), | |
2445 | AMGf_assign); | |
2446 | { | |
2447 | dATARGET; dPOPTOPssrl; | |
2448 | do_vop(op_type == OP_SBIT_OR ? OP_BIT_OR : OP_BIT_XOR, TARG, left, | |
2449 | right); | |
2450 | RETSETTARG; | |
2451 | } | |
2452 | } | |
2453 | ||
1c2b3fd6 FC |
2454 | PERL_STATIC_INLINE bool |
2455 | S_negate_string(pTHX) | |
2456 | { | |
2457 | dTARGET; dSP; | |
2458 | STRLEN len; | |
2459 | const char *s; | |
2460 | SV * const sv = TOPs; | |
2461 | if (!SvPOKp(sv) || SvNIOK(sv) || (!SvPOK(sv) && SvNIOKp(sv))) | |
2462 | return FALSE; | |
2463 | s = SvPV_nomg_const(sv, len); | |
2464 | if (isIDFIRST(*s)) { | |
2465 | sv_setpvs(TARG, "-"); | |
2466 | sv_catsv(TARG, sv); | |
2467 | } | |
2468 | else if (*s == '+' || (*s == '-' && !looks_like_number(sv))) { | |
2469 | sv_setsv_nomg(TARG, sv); | |
2470 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
2471 | } | |
2472 | else return FALSE; | |
245d035e | 2473 | SETTARG; |
1c2b3fd6 FC |
2474 | return TRUE; |
2475 | } | |
2476 | ||
a0d0e21e LW |
2477 | PP(pp_negate) |
2478 | { | |
20b7effb | 2479 | dSP; dTARGET; |
6f1401dc | 2480 | tryAMAGICun_MG(neg_amg, AMGf_numeric); |
1c2b3fd6 | 2481 | if (S_negate_string(aTHX)) return NORMAL; |
a0d0e21e | 2482 | { |
6f1401dc | 2483 | SV * const sv = TOPs; |
a5b92898 | 2484 | |
d96ab1b5 | 2485 | if (SvIOK(sv)) { |
7dbe3150 | 2486 | /* It's publicly an integer */ |
28e5dec8 | 2487 | oops_its_an_int: |
9b0e499b GS |
2488 | if (SvIsUV(sv)) { |
2489 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2490 | /* 2s complement assumption. */ |
d14578b8 KW |
2491 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == |
2492 | IV_MIN */ | |
245d035e | 2493 | return NORMAL; |
9b0e499b GS |
2494 | } |
2495 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2496 | SETi(-SvIVX(sv)); |
245d035e | 2497 | return NORMAL; |
9b0e499b GS |
2498 | } |
2499 | } | |
2500 | else if (SvIVX(sv) != IV_MIN) { | |
2501 | SETi(-SvIVX(sv)); | |
245d035e | 2502 | return NORMAL; |
9b0e499b | 2503 | } |
28e5dec8 JH |
2504 | #ifdef PERL_PRESERVE_IVUV |
2505 | else { | |
2506 | SETu((UV)IV_MIN); | |
245d035e | 2507 | return NORMAL; |
28e5dec8 JH |
2508 | } |
2509 | #endif | |
9b0e499b | 2510 | } |
8a5decd8 | 2511 | if (SvNIOKp(sv) && (SvNIOK(sv) || !SvPOK(sv))) |
6f1401dc | 2512 | SETn(-SvNV_nomg(sv)); |
1c2b3fd6 | 2513 | else if (SvPOKp(sv) && SvIV_please_nomg(sv)) |
8eb28a70 | 2514 | goto oops_its_an_int; |
4633a7c4 | 2515 | else |
6f1401dc | 2516 | SETn(-SvNV_nomg(sv)); |
79072805 | 2517 | } |
245d035e | 2518 | return NORMAL; |
79072805 LW |
2519 | } |
2520 | ||
a0d0e21e | 2521 | PP(pp_not) |
79072805 | 2522 | { |
20b7effb | 2523 | dSP; |
f4c975aa DM |
2524 | SV *sv; |
2525 | ||
0872de45 | 2526 | tryAMAGICun_MG(not_amg, 0); |
f4c975aa DM |
2527 | sv = *PL_stack_sp; |
2528 | *PL_stack_sp = boolSV(!SvTRUE_nomg_NN(sv)); | |
a0d0e21e | 2529 | return NORMAL; |
79072805 LW |
2530 | } |
2531 | ||
5d01050a FC |
2532 | static void |
2533 | S_scomplement(pTHX_ SV *targ, SV *sv) | |
79072805 | 2534 | { |
eb578fdb KW |
2535 | U8 *tmps; |
2536 | I32 anum; | |
a0d0e21e LW |
2537 | STRLEN len; |
2538 | ||
85b0ee6e FC |
2539 | sv_copypv_nomg(TARG, sv); |
2540 | tmps = (U8*)SvPV_nomg(TARG, len); | |
08b6664b | 2541 | |
1d68d6cd | 2542 | if (SvUTF8(TARG)) { |
08b6664b | 2543 | if (len && ! utf8_to_bytes(tmps, &len)) { |
814eedc8 | 2544 | Perl_croak(aTHX_ FATAL_ABOVE_FF_MSG, PL_op_desc[PL_op->op_type]); |
08b6664b | 2545 | } |
2324bdb9 | 2546 | SvCUR_set(TARG, len); |
08b6664b KW |
2547 | SvUTF8_off(TARG); |
2548 | } | |
2549 | ||
2550 | anum = len; | |
1d68d6cd | 2551 | |
a0d0e21e | 2552 | #ifdef LIBERAL |
51723571 | 2553 | { |
eb578fdb | 2554 | long *tmpl; |
51723571 JH |
2555 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) |
2556 | *tmps = ~*tmps; | |
2557 | tmpl = (long*)tmps; | |
bb7a0f54 | 2558 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2559 | *tmpl = ~*tmpl; |
2560 | tmps = (U8*)tmpl; | |
2561 | } | |
a0d0e21e LW |
2562 | #endif |
2563 | for ( ; anum > 0; anum--, tmps++) | |
2564 | *tmps = ~*tmps; | |
5d01050a FC |
2565 | } |
2566 | ||
2567 | PP(pp_complement) | |
2568 | { | |
2569 | dSP; dTARGET; | |
2570 | tryAMAGICun_MG(compl_amg, AMGf_numeric); | |
2571 | { | |
2572 | dTOPss; | |
2573 | if (SvNIOKp(sv)) { | |
2574 | if (PL_op->op_private & HINT_INTEGER) { | |
2575 | const IV i = ~SvIV_nomg(sv); | |
2576 | SETi(i); | |
2577 | } | |
2578 | else { | |
2579 | const UV u = ~SvUV_nomg(sv); | |
2580 | SETu(u); | |
2581 | } | |
2582 | } | |
2583 | else { | |
2584 | S_scomplement(aTHX_ TARG, sv); | |
ec93b65f | 2585 | SETTARG; |
a0d0e21e | 2586 | } |
24840750 | 2587 | return NORMAL; |
5d01050a FC |
2588 | } |
2589 | } | |
2590 | ||
2591 | PP(pp_ncomplement) | |
2592 | { | |
2593 | dSP; | |
636ac8fc | 2594 | tryAMAGICun_MG(compl_amg, AMGf_numeric|AMGf_numarg); |
5d01050a FC |
2595 | { |
2596 | dTARGET; dTOPss; | |
2597 | if (PL_op->op_private & HINT_INTEGER) { | |
2598 | const IV i = ~SvIV_nomg(sv); | |
2599 | SETi(i); | |
2600 | } | |
2601 | else { | |
2602 | const UV u = ~SvUV_nomg(sv); | |
2603 | SETu(u); | |
2604 | } | |
2605 | } | |
2606 | return NORMAL; | |
2607 | } | |
2608 | ||
2609 | PP(pp_scomplement) | |
2610 | { | |
2611 | dSP; | |
2612 | tryAMAGICun_MG(scompl_amg, AMGf_numeric); | |
2613 | { | |
2614 | dTARGET; dTOPss; | |
2615 | S_scomplement(aTHX_ TARG, sv); | |
2616 | SETTARG; | |
2617 | return NORMAL; | |
a0d0e21e | 2618 | } |
79072805 LW |
2619 | } |
2620 | ||
a0d0e21e LW |
2621 | /* integer versions of some of the above */ |
2622 | ||
a0d0e21e | 2623 | PP(pp_i_multiply) |
79072805 | 2624 | { |
20b7effb | 2625 | dSP; dATARGET; |
6f1401dc | 2626 | tryAMAGICbin_MG(mult_amg, AMGf_assign); |
a0d0e21e | 2627 | { |
6f1401dc | 2628 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2629 | SETi( left * right ); |
2630 | RETURN; | |
2631 | } | |
79072805 LW |
2632 | } |
2633 | ||
a0d0e21e | 2634 | PP(pp_i_divide) |
79072805 | 2635 | { |
85935d8e | 2636 | IV num; |
20b7effb | 2637 | dSP; dATARGET; |
6f1401dc | 2638 | tryAMAGICbin_MG(div_amg, AMGf_assign); |
a0d0e21e | 2639 | { |
6f1401dc | 2640 | dPOPTOPssrl; |
85935d8e | 2641 | IV value = SvIV_nomg(right); |
a0d0e21e | 2642 | if (value == 0) |
ece1bcef | 2643 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2644 | num = SvIV_nomg(left); |
a0cec769 YST |
2645 | |
2646 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2647 | if (value == -1) | |
2648 | value = - num; | |
2649 | else | |
2650 | value = num / value; | |
6f1401dc | 2651 | SETi(value); |
a0d0e21e LW |
2652 | RETURN; |
2653 | } | |
79072805 LW |
2654 | } |
2655 | ||
befad5d1 | 2656 | PP(pp_i_modulo) |
224ec323 JH |
2657 | { |
2658 | /* This is the vanilla old i_modulo. */ | |
20b7effb | 2659 | dSP; dATARGET; |
6f1401dc | 2660 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2661 | { |
6f1401dc | 2662 | dPOPTOPiirl_nomg; |
224ec323 JH |
2663 | if (!right) |
2664 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2665 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2666 | if (right == -1) | |
2667 | SETi( 0 ); | |
2668 | else | |
2669 | SETi( left % right ); | |
224ec323 JH |
2670 | RETURN; |
2671 | } | |
2672 | } | |
2673 | ||
0927ade0 | 2674 | #if defined(__GLIBC__) && IVSIZE == 8 \ |
bf3d06aa | 2675 | && ( __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 8)) |
befad5d1 | 2676 | |
0927ade0 | 2677 | PP(pp_i_modulo_glibc_bugfix) |
224ec323 | 2678 | { |
224ec323 | 2679 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2680 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2681 | * See below for pp_i_modulo. */ |
20b7effb | 2682 | dSP; dATARGET; |
6f1401dc | 2683 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2684 | { |
6f1401dc | 2685 | dPOPTOPiirl_nomg; |
224ec323 JH |
2686 | if (!right) |
2687 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2688 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2689 | if (right == -1) | |
2690 | SETi( 0 ); | |
2691 | else | |
2692 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2693 | RETURN; |
2694 | } | |
224ec323 | 2695 | } |
befad5d1 | 2696 | #endif |
79072805 | 2697 | |
a0d0e21e | 2698 | PP(pp_i_add) |
79072805 | 2699 | { |
20b7effb | 2700 | dSP; dATARGET; |
6f1401dc | 2701 | tryAMAGICbin_MG(add_amg, AMGf_assign); |
a0d0e21e | 2702 | { |
6f1401dc | 2703 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2704 | SETi( left + right ); |
2705 | RETURN; | |
79072805 | 2706 | } |
79072805 LW |
2707 | } |
2708 | ||
a0d0e21e | 2709 | PP(pp_i_subtract) |
79072805 | 2710 | { |
20b7effb | 2711 | dSP; dATARGET; |
6f1401dc | 2712 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); |
a0d0e21e | 2713 | { |
6f1401dc | 2714 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2715 | SETi( left - right ); |
2716 | RETURN; | |
79072805 | 2717 | } |
79072805 LW |
2718 | } |
2719 | ||
a0d0e21e | 2720 | PP(pp_i_lt) |
79072805 | 2721 | { |
20b7effb | 2722 | dSP; |
0872de45 | 2723 | tryAMAGICbin_MG(lt_amg, 0); |
a0d0e21e | 2724 | { |
96b6b87f | 2725 | dPOPTOPiirl_nomg; |
54310121 | 2726 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2727 | RETURN; |
2728 | } | |
79072805 LW |
2729 | } |
2730 | ||
a0d0e21e | 2731 | PP(pp_i_gt) |
79072805 | 2732 | { |
20b7effb | 2733 | dSP; |
0872de45 | 2734 | tryAMAGICbin_MG(gt_amg, 0); |
a0d0e21e | 2735 | { |
96b6b87f | 2736 | dPOPTOPiirl_nomg; |
54310121 | 2737 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2738 | RETURN; |
2739 | } | |
79072805 LW |
2740 | } |
2741 | ||
a0d0e21e | 2742 | PP(pp_i_le) |
79072805 | 2743 | { |
20b7effb | 2744 | dSP; |
0872de45 | 2745 | tryAMAGICbin_MG(le_amg, 0); |
a0d0e21e | 2746 | { |
96b6b87f | 2747 | dPOPTOPiirl_nomg; |
54310121 | 2748 | SETs(boolSV(left <= right)); |
a0d0e21e | 2749 | RETURN; |
85e6fe83 | 2750 | } |
79072805 LW |
2751 | } |
2752 | ||
a0d0e21e | 2753 | PP(pp_i_ge) |
79072805 | 2754 | { |
20b7effb | 2755 | dSP; |
0872de45 | 2756 | tryAMAGICbin_MG(ge_amg, 0); |
a0d0e21e | 2757 | { |
96b6b87f | 2758 | dPOPTOPiirl_nomg; |
54310121 | 2759 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2760 | RETURN; |
2761 | } | |
79072805 LW |
2762 | } |
2763 | ||
a0d0e21e | 2764 | PP(pp_i_eq) |
79072805 | 2765 | { |
20b7effb | 2766 | dSP; |
0872de45 | 2767 | tryAMAGICbin_MG(eq_amg, 0); |
a0d0e21e | 2768 | { |
96b6b87f | 2769 | dPOPTOPiirl_nomg; |
54310121 | 2770 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2771 | RETURN; |
2772 | } | |
79072805 LW |
2773 | } |
2774 | ||
a0d0e21e | 2775 | PP(pp_i_ne) |
79072805 | 2776 | { |
20b7effb | 2777 | dSP; |
0872de45 | 2778 | tryAMAGICbin_MG(ne_amg, 0); |
a0d0e21e | 2779 | { |
96b6b87f | 2780 | dPOPTOPiirl_nomg; |
54310121 | 2781 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2782 | RETURN; |
2783 | } | |
79072805 LW |
2784 | } |
2785 | ||
a0d0e21e | 2786 | PP(pp_i_ncmp) |
79072805 | 2787 | { |
20b7effb | 2788 | dSP; dTARGET; |
6f1401dc | 2789 | tryAMAGICbin_MG(ncmp_amg, 0); |
a0d0e21e | 2790 | { |
96b6b87f | 2791 | dPOPTOPiirl_nomg; |
a0d0e21e | 2792 | I32 value; |
79072805 | 2793 | |
a0d0e21e | 2794 | if (left > right) |
79072805 | 2795 | value = 1; |
a0d0e21e | 2796 | else if (left < right) |
79072805 | 2797 | value = -1; |
a0d0e21e | 2798 | else |
79072805 | 2799 | value = 0; |
a0d0e21e LW |
2800 | SETi(value); |
2801 | RETURN; | |
79072805 | 2802 | } |
85e6fe83 LW |
2803 | } |
2804 | ||
2805 | PP(pp_i_negate) | |
2806 | { | |
20b7effb | 2807 | dSP; dTARGET; |
6f1401dc | 2808 | tryAMAGICun_MG(neg_amg, 0); |
1c2b3fd6 | 2809 | if (S_negate_string(aTHX)) return NORMAL; |
6f1401dc DM |
2810 | { |
2811 | SV * const sv = TOPs; | |
2812 | IV const i = SvIV_nomg(sv); | |
2813 | SETi(-i); | |
ae642386 | 2814 | return NORMAL; |
6f1401dc | 2815 | } |
85e6fe83 LW |
2816 | } |
2817 | ||
79072805 LW |
2818 | /* High falutin' math. */ |
2819 | ||
2820 | PP(pp_atan2) | |
2821 | { | |
20b7effb | 2822 | dSP; dTARGET; |
6f1401dc | 2823 | tryAMAGICbin_MG(atan2_amg, 0); |
a0d0e21e | 2824 | { |
096c060c | 2825 | dPOPTOPnnrl_nomg; |
a1021d57 | 2826 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2827 | RETURN; |
2828 | } | |
79072805 LW |
2829 | } |
2830 | ||
b1c05ba5 DM |
2831 | |
2832 | /* also used for: pp_cos() pp_exp() pp_log() pp_sqrt() */ | |
2833 | ||
79072805 LW |
2834 | PP(pp_sin) |
2835 | { | |
20b7effb | 2836 | dSP; dTARGET; |
af71714e | 2837 | int amg_type = fallback_amg; |
71302fe3 | 2838 | const char *neg_report = NULL; |
71302fe3 NC |
2839 | const int op_type = PL_op->op_type; |
2840 | ||
2841 | switch (op_type) { | |
af71714e JH |
2842 | case OP_SIN: amg_type = sin_amg; break; |
2843 | case OP_COS: amg_type = cos_amg; break; | |
2844 | case OP_EXP: amg_type = exp_amg; break; | |
2845 | case OP_LOG: amg_type = log_amg; neg_report = "log"; break; | |
2846 | case OP_SQRT: amg_type = sqrt_amg; neg_report = "sqrt"; break; | |
a0d0e21e | 2847 | } |
79072805 | 2848 | |
af71714e | 2849 | assert(amg_type != fallback_amg); |
6f1401dc DM |
2850 | |
2851 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2852 | { |
8c78ed36 | 2853 | SV * const arg = TOPs; |
6f1401dc | 2854 | const NV value = SvNV_nomg(arg); |
a5dc2484 | 2855 | #ifdef NV_NAN |
f256868e | 2856 | NV result = NV_NAN; |
a5dc2484 JH |
2857 | #else |
2858 | NV result = 0.0; | |
2859 | #endif | |
af71714e | 2860 | if (neg_report) { /* log or sqrt */ |
a3463d96 DD |
2861 | if ( |
2862 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
2863 | ! Perl_isnan(value) && | |
2864 | #endif | |
2865 | (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0))) { | |
71302fe3 | 2866 | SET_NUMERIC_STANDARD(); |
dcbac5bb | 2867 | /* diag_listed_as: Can't take log of %g */ |
147e3846 | 2868 | DIE(aTHX_ "Can't take %s of %" NVgf, neg_report, value); |
71302fe3 NC |
2869 | } |
2870 | } | |
af71714e | 2871 | switch (op_type) { |
f256868e | 2872 | default: |
af71714e JH |
2873 | case OP_SIN: result = Perl_sin(value); break; |
2874 | case OP_COS: result = Perl_cos(value); break; | |
2875 | case OP_EXP: result = Perl_exp(value); break; | |
2876 | case OP_LOG: result = Perl_log(value); break; | |
2877 | case OP_SQRT: result = Perl_sqrt(value); break; | |
2878 | } | |
8c78ed36 FC |
2879 | SETn(result); |
2880 | return NORMAL; | |
a0d0e21e | 2881 | } |
79072805 LW |
2882 | } |
2883 | ||
56cb0a1c AD |
2884 | /* Support Configure command-line overrides for rand() functions. |
2885 | After 5.005, perhaps we should replace this by Configure support | |
2886 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2887 | compatibility by calling rand() but allow the user to override it. | |
2888 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2889 | */ | |
85ab1d1d JH |
2890 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2891 | in addition to rand(). So the overrides should not be needed any more. | |
2892 | --Jarkko Hietaniemi 27 September 1998 | |
2893 | */ | |
2894 | ||
79072805 LW |
2895 | PP(pp_rand) |
2896 | { | |
80252599 | 2897 | if (!PL_srand_called) { |
85ab1d1d | 2898 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2899 | PL_srand_called = TRUE; |
93dc8474 | 2900 | } |
fdf4dddd DD |
2901 | { |
2902 | dSP; | |
2903 | NV value; | |
a8e41ef4 | 2904 | |
fdf4dddd | 2905 | if (MAXARG < 1) |
7e9044f9 FC |
2906 | { |
2907 | EXTEND(SP, 1); | |
fdf4dddd | 2908 | value = 1.0; |
7e9044f9 | 2909 | } |
fdf4dddd DD |
2910 | else { |
2911 | SV * const sv = POPs; | |
2912 | if(!sv) | |
2913 | value = 1.0; | |
2914 | else | |
2915 | value = SvNV(sv); | |
2916 | } | |
2917 | /* 1 of 2 things can be carried through SvNV, SP or TARG, SP was carried */ | |
a3463d96 DD |
2918 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
2919 | if (! Perl_isnan(value) && value == 0.0) | |
2920 | #else | |
659c4b96 | 2921 | if (value == 0.0) |
a3463d96 | 2922 | #endif |
fdf4dddd DD |
2923 | value = 1.0; |
2924 | { | |
2925 | dTARGET; | |
2926 | PUSHs(TARG); | |
2927 | PUTBACK; | |
2928 | value *= Drand01(); | |
2929 | sv_setnv_mg(TARG, value); | |
2930 | } | |
2931 | } | |
2932 | return NORMAL; | |
79072805 LW |
2933 | } |
2934 | ||
2935 | PP(pp_srand) | |
2936 | { | |
20b7effb | 2937 | dSP; dTARGET; |
f914a682 JL |
2938 | UV anum; |
2939 | ||
0a5f3363 | 2940 | if (MAXARG >= 1 && (TOPs || POPs)) { |
f914a682 JL |
2941 | SV *top; |
2942 | char *pv; | |
2943 | STRLEN len; | |
2944 | int flags; | |
2945 | ||
2946 | top = POPs; | |
2947 | pv = SvPV(top, len); | |
2948 | flags = grok_number(pv, len, &anum); | |
2949 | ||
2950 | if (!(flags & IS_NUMBER_IN_UV)) { | |
2951 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
2952 | "Integer overflow in srand"); | |
2953 | anum = UV_MAX; | |
2954 | } | |
2955 | } | |
2956 | else { | |
2957 | anum = seed(); | |
2958 | } | |
2959 | ||
85ab1d1d | 2960 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2961 | PL_srand_called = TRUE; |
da1010ec NC |
2962 | if (anum) |
2963 | XPUSHu(anum); | |
2964 | else { | |
2965 | /* Historically srand always returned true. We can avoid breaking | |
2966 | that like this: */ | |
2967 | sv_setpvs(TARG, "0 but true"); | |
2968 | XPUSHTARG; | |
2969 | } | |
83832992 | 2970 | RETURN; |
79072805 LW |
2971 | } |
2972 | ||
79072805 LW |
2973 | PP(pp_int) |
2974 | { | |
20b7effb | 2975 | dSP; dTARGET; |
6f1401dc | 2976 | tryAMAGICun_MG(int_amg, AMGf_numeric); |
774d564b | 2977 | { |
6f1401dc DM |
2978 | SV * const sv = TOPs; |
2979 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2980 | /* XXX it's arguable that compiler casting to IV might be subtly |
2981 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2982 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2983 | relying on floating point to be accurate is a bug. */ | |
2984 | ||
c781a409 | 2985 | if (!SvOK(sv)) { |
922c4365 | 2986 | SETu(0); |
c781a409 RD |
2987 | } |
2988 | else if (SvIOK(sv)) { | |
2989 | if (SvIsUV(sv)) | |
6f1401dc | 2990 | SETu(SvUV_nomg(sv)); |
c781a409 | 2991 | else |
28e5dec8 | 2992 | SETi(iv); |
c781a409 | 2993 | } |
c781a409 | 2994 | else { |
6f1401dc | 2995 | const NV value = SvNV_nomg(sv); |
b9d05018 FC |
2996 | if (UNLIKELY(Perl_isinfnan(value))) |
2997 | SETn(value); | |
5bf8b78e | 2998 | else if (value >= 0.0) { |
28e5dec8 JH |
2999 | if (value < (NV)UV_MAX + 0.5) { |
3000 | SETu(U_V(value)); | |
3001 | } else { | |
059a1014 | 3002 | SETn(Perl_floor(value)); |
28e5dec8 | 3003 | } |
1048ea30 | 3004 | } |
28e5dec8 JH |
3005 | else { |
3006 | if (value > (NV)IV_MIN - 0.5) { | |
3007 | SETi(I_V(value)); | |
3008 | } else { | |
1bbae031 | 3009 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
3010 | } |
3011 | } | |
774d564b | 3012 | } |
79072805 | 3013 | } |
699e9491 | 3014 | return NORMAL; |
79072805 LW |
3015 | } |
3016 | ||
463ee0b2 LW |
3017 | PP(pp_abs) |
3018 | { | |
20b7effb | 3019 | dSP; dTARGET; |
6f1401dc | 3020 | tryAMAGICun_MG(abs_amg, AMGf_numeric); |
a0d0e21e | 3021 | { |
6f1401dc | 3022 | SV * const sv = TOPs; |
28e5dec8 | 3023 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 3024 | const IV iv = SvIV_nomg(sv); |
a227d84d | 3025 | |
800401ee | 3026 | if (!SvOK(sv)) { |
922c4365 | 3027 | SETu(0); |
800401ee JH |
3028 | } |
3029 | else if (SvIOK(sv)) { | |
28e5dec8 | 3030 | /* IVX is precise */ |
800401ee | 3031 | if (SvIsUV(sv)) { |
6f1401dc | 3032 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
3033 | } else { |
3034 | if (iv >= 0) { | |
3035 | SETi(iv); | |
3036 | } else { | |
3037 | if (iv != IV_MIN) { | |
3038 | SETi(-iv); | |
3039 | } else { | |
3040 | /* 2s complement assumption. Also, not really needed as | |
3041 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
b396d0d8 | 3042 | SETu((UV)IV_MIN); |
28e5dec8 | 3043 | } |
a227d84d | 3044 | } |
28e5dec8 JH |
3045 | } |
3046 | } else{ | |
6f1401dc | 3047 | const NV value = SvNV_nomg(sv); |
774d564b | 3048 | if (value < 0.0) |
1b6737cc | 3049 | SETn(-value); |
a4474c9e DD |
3050 | else |
3051 | SETn(value); | |
774d564b | 3052 | } |
a0d0e21e | 3053 | } |
067b7929 | 3054 | return NORMAL; |
463ee0b2 LW |
3055 | } |
3056 | ||
b1c05ba5 DM |
3057 | |
3058 | /* also used for: pp_hex() */ | |
3059 | ||
79072805 LW |
3060 | PP(pp_oct) |
3061 | { | |
20b7effb | 3062 | dSP; dTARGET; |
5c144d81 | 3063 | const char *tmps; |
53305cf1 | 3064 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 3065 | STRLEN len; |
53305cf1 NC |
3066 | NV result_nv; |
3067 | UV result_uv; | |
4e51bcca | 3068 | SV* const sv = TOPs; |
79072805 | 3069 | |
349d4f2f | 3070 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
3071 | if (DO_UTF8(sv)) { |
3072 | /* If Unicode, try to downgrade | |
3073 | * If not possible, croak. */ | |
1b6737cc | 3074 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
a8e41ef4 | 3075 | |
2bc69dc4 NIS |
3076 | SvUTF8_on(tsv); |
3077 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 3078 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 3079 | } |
daa2adfd NC |
3080 | if (PL_op->op_type == OP_HEX) |
3081 | goto hex; | |
3082 | ||
6f894ead | 3083 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 3084 | tmps++, len--; |
9e24b6e2 | 3085 | if (*tmps == '0') |
53305cf1 | 3086 | tmps++, len--; |
305b8651 | 3087 | if (isALPHA_FOLD_EQ(*tmps, 'x')) { |
daa2adfd | 3088 | hex: |
53305cf1 | 3089 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 3090 | } |
305b8651 | 3091 | else if (isALPHA_FOLD_EQ(*tmps, 'b')) |
53305cf1 | 3092 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 3093 | else |
53305cf1 NC |
3094 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
3095 | ||
3096 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
4e51bcca | 3097 | SETn(result_nv); |
53305cf1 NC |
3098 | } |
3099 | else { | |
4e51bcca | 3100 | SETu(result_uv); |
53305cf1 | 3101 | } |
4e51bcca | 3102 | return NORMAL; |
79072805 LW |
3103 | } |
3104 | ||
3105 | /* String stuff. */ | |
3106 | ||
5febd2ff | 3107 | |
79072805 LW |
3108 | PP(pp_length) |
3109 | { | |
20b7effb | 3110 | dSP; dTARGET; |
0bd48802 | 3111 | SV * const sv = TOPs; |
a0ed51b3 | 3112 | |
7776003e | 3113 | U32 in_bytes = IN_BYTES; |
5febd2ff DM |
3114 | /* Simplest case shortcut: |
3115 | * set svflags to just the SVf_POK|SVs_GMG|SVf_UTF8 from the SV, | |
3116 | * with the SVf_UTF8 flag inverted if under 'use bytes' (HINT_BYTES | |
3117 | * set) | |
3118 | */ | |
7776003e | 3119 | U32 svflags = (SvFLAGS(sv) ^ (in_bytes << 26)) & (SVf_POK|SVs_GMG|SVf_UTF8); |
5febd2ff DM |
3120 | |
3121 | STATIC_ASSERT_STMT(SVf_UTF8 == (HINT_BYTES << 26)); | |
7776003e DD |
3122 | SETs(TARG); |
3123 | ||
5febd2ff | 3124 | if (LIKELY(svflags == SVf_POK)) |
7776003e | 3125 | goto simple_pv; |
5febd2ff DM |
3126 | |
3127 | if (svflags & SVs_GMG) | |
7776003e | 3128 | mg_get(sv); |
5febd2ff | 3129 | |
0f43fd57 | 3130 | if (SvOK(sv)) { |
5b750817 | 3131 | STRLEN len; |
f446eca7 DM |
3132 | if (!IN_BYTES) { /* reread to avoid using an C auto/register */ |
3133 | if ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == SVf_POK) | |
3134 | goto simple_pv; | |
7b394f12 DM |
3135 | if ( SvPOK(sv) && (PL_op->op_private & OPpTRUEBOOL)) { |
3136 | /* no need to convert from bytes to chars */ | |
3137 | len = SvCUR(sv); | |
3138 | goto return_bool; | |
3139 | } | |
5b750817 | 3140 | len = sv_len_utf8_nomg(sv); |
f446eca7 | 3141 | } |
5febd2ff | 3142 | else { |
7776003e | 3143 | /* unrolled SvPV_nomg_const(sv,len) */ |
5febd2ff DM |
3144 | if (SvPOK_nog(sv)) { |
3145 | simple_pv: | |
7776003e | 3146 | len = SvCUR(sv); |
7b394f12 DM |
3147 | if (PL_op->op_private & OPpTRUEBOOL) { |
3148 | return_bool: | |
3149 | SETs(len ? &PL_sv_yes : &PL_sv_zero); | |
3150 | return NORMAL; | |
3151 | } | |
5febd2ff DM |
3152 | } |
3153 | else { | |
7776003e DD |
3154 | (void)sv_2pv_flags(sv, &len, 0|SV_CONST_RETURN); |
3155 | } | |
0f43fd57 | 3156 | } |
5b750817 | 3157 | TARGi((IV)(len), 1); |
5febd2ff DM |
3158 | } |
3159 | else { | |
9407f9c1 | 3160 | if (!SvPADTMP(TARG)) { |
5febd2ff | 3161 | /* OPpTARGET_MY: targ is var in '$lex = length()' */ |
e03e82a0 | 3162 | sv_set_undef(TARG); |
5b750817 | 3163 | SvSETMAGIC(TARG); |
5febd2ff DM |
3164 | } |
3165 | else | |
3166 | /* TARG is on stack at this point and is overwriten by SETs. | |
3167 | * This branch is the odd one out, so put TARG by default on | |
3168 | * stack earlier to let local SP go out of liveness sooner */ | |
7776003e | 3169 | SETs(&PL_sv_undef); |
92331800 | 3170 | } |
7776003e | 3171 | return NORMAL; /* no putback, SP didn't move in this opcode */ |
79072805 LW |
3172 | } |
3173 | ||
5febd2ff | 3174 | |
83f78d1a FC |
3175 | /* Returns false if substring is completely outside original string. |
3176 | No length is indicated by len_iv = 0 and len_is_uv = 0. len_is_uv must | |
3177 | always be true for an explicit 0. | |
3178 | */ | |
3179 | bool | |
ddeaf645 DD |
3180 | Perl_translate_substr_offsets( STRLEN curlen, IV pos1_iv, |
3181 | bool pos1_is_uv, IV len_iv, | |
3182 | bool len_is_uv, STRLEN *posp, | |
3183 | STRLEN *lenp) | |
83f78d1a FC |
3184 | { |
3185 | IV pos2_iv; | |
3186 | int pos2_is_uv; | |
3187 | ||
3188 | PERL_ARGS_ASSERT_TRANSLATE_SUBSTR_OFFSETS; | |
3189 | ||
3190 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { | |
3191 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
3192 | pos1_iv += curlen; | |
3193 | } | |
3194 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) | |
3195 | return FALSE; | |
3196 | ||
3197 | if (len_iv || len_is_uv) { | |
3198 | if (!len_is_uv && len_iv < 0) { | |
3199 | pos2_iv = curlen + len_iv; | |
3200 | if (curlen) | |
3201 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
3202 | else | |
3203 | pos2_is_uv = 0; | |
3204 | } else { /* len_iv >= 0 */ | |
3205 | if (!pos1_is_uv && pos1_iv < 0) { | |
3206 | pos2_iv = pos1_iv + len_iv; | |
3207 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
3208 | } else { | |
3209 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
3210 | pos2_iv = curlen; | |
3211 | else | |
3212 | pos2_iv = pos1_iv+len_iv; | |
3213 | pos2_is_uv = 1; | |
3214 | } | |
3215 | } | |
3216 | } | |
3217 | else { | |
3218 | pos2_iv = curlen; | |
3219 | pos2_is_uv = 1; | |
3220 | } | |
3221 | ||
3222 | if (!pos2_is_uv && pos2_iv < 0) { | |
3223 | if (!pos1_is_uv && pos1_iv < 0) | |
3224 | return FALSE; | |
3225 | pos2_iv = 0; | |
3226 | } | |
3227 | else if (!pos1_is_uv && pos1_iv < 0) | |
3228 | pos1_iv = 0; | |
3229 | ||
3230 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3231 | pos2_iv = pos1_iv; | |
3232 | if ((UV)pos2_iv > curlen) | |
3233 | pos2_iv = curlen; | |
3234 | ||
3235 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3236 | *posp = (STRLEN)( (UV)pos1_iv ); | |
3237 | *lenp = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
3238 | ||
3239 | return TRUE; | |
3240 | } | |
3241 | ||
79072805 LW |
3242 | PP(pp_substr) |
3243 | { | |
20b7effb | 3244 | dSP; dTARGET; |
79072805 | 3245 | SV *sv; |
463ee0b2 | 3246 | STRLEN curlen; |
9402d6ed | 3247 | STRLEN utf8_curlen; |
777f7c56 EB |
3248 | SV * pos_sv; |
3249 | IV pos1_iv; | |
3250 | int pos1_is_uv; | |
777f7c56 EB |
3251 | SV * len_sv; |
3252 | IV len_iv = 0; | |
83f78d1a | 3253 | int len_is_uv = 0; |
24fcb59f | 3254 | I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 3255 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 3256 | const char *tmps; |
9402d6ed | 3257 | SV *repl_sv = NULL; |
cbbf8932 | 3258 | const char *repl = NULL; |
7b8d334a | 3259 | STRLEN repl_len; |
7bc95ae1 | 3260 | int num_args = PL_op->op_private & 7; |
13e30c65 | 3261 | bool repl_need_utf8_upgrade = FALSE; |
79072805 | 3262 | |
78f9721b SM |
3263 | if (num_args > 2) { |
3264 | if (num_args > 3) { | |
24fcb59f | 3265 | if(!(repl_sv = POPs)) num_args--; |
7bc95ae1 FC |
3266 | } |
3267 | if ((len_sv = POPs)) { | |
3268 | len_iv = SvIV(len_sv); | |
83f78d1a | 3269 | len_is_uv = len_iv ? SvIOK_UV(len_sv) : 1; |
7b8d334a | 3270 | } |
7bc95ae1 | 3271 | else num_args--; |
5d82c453 | 3272 | } |
777f7c56 EB |
3273 | pos_sv = POPs; |
3274 | pos1_iv = SvIV(pos_sv); | |
3275 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3276 | sv = POPs; |
24fcb59f FC |
3277 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) { |
3278 | assert(!repl_sv); | |
3279 | repl_sv = POPs; | |
3280 | } | |
6582db62 | 3281 | if (lvalue && !repl_sv) { |
83f78d1a FC |
3282 | SV * ret; |
3283 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3284 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3285 | LvTYPE(ret) = 'x'; | |
3286 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3287 | LvTARGOFF(ret) = | |
3288 | pos1_is_uv || pos1_iv >= 0 | |
3289 | ? (STRLEN)(UV)pos1_iv | |
b063b0a8 | 3290 | : (LvFLAGS(ret) |= LVf_NEG_OFF, (STRLEN)(UV)-pos1_iv); |
83f78d1a FC |
3291 | LvTARGLEN(ret) = |
3292 | len_is_uv || len_iv > 0 | |
3293 | ? (STRLEN)(UV)len_iv | |
b063b0a8 | 3294 | : (LvFLAGS(ret) |= LVf_NEG_LEN, (STRLEN)(UV)-len_iv); |
83f78d1a | 3295 | |
83f78d1a FC |
3296 | PUSHs(ret); /* avoid SvSETMAGIC here */ |
3297 | RETURN; | |
a74fb2cd | 3298 | } |
6582db62 FC |
3299 | if (repl_sv) { |
3300 | repl = SvPV_const(repl_sv, repl_len); | |
3301 | SvGETMAGIC(sv); | |
3302 | if (SvROK(sv)) | |
3303 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3304 | "Attempt to use reference as lvalue in substr" | |
3305 | ); | |
3306 | tmps = SvPV_force_nomg(sv, curlen); | |
3307 | if (DO_UTF8(repl_sv) && repl_len) { | |
3308 | if (!DO_UTF8(sv)) { | |
41b1e858 AC |
3309 | /* Upgrade the dest, and recalculate tmps in case the buffer |
3310 | * got reallocated; curlen may also have been changed */ | |
01680ee9 | 3311 | sv_utf8_upgrade_nomg(sv); |
41b1e858 | 3312 | tmps = SvPV_nomg(sv, curlen); |
6582db62 FC |
3313 | } |
3314 | } | |
3315 | else if (DO_UTF8(sv)) | |
3316 | repl_need_utf8_upgrade = TRUE; | |
3317 | } | |
3318 | else tmps = SvPV_const(sv, curlen); | |
7e2040f0 | 3319 | if (DO_UTF8(sv)) { |
0d788f38 | 3320 | utf8_curlen = sv_or_pv_len_utf8(sv, tmps, curlen); |
9402d6ed JH |
3321 | if (utf8_curlen == curlen) |
3322 | utf8_curlen = 0; | |
a0ed51b3 | 3323 | else |
9402d6ed | 3324 | curlen = utf8_curlen; |
a0ed51b3 | 3325 | } |
d1c2b58a | 3326 | else |
9402d6ed | 3327 | utf8_curlen = 0; |
a0ed51b3 | 3328 | |
83f78d1a FC |
3329 | { |
3330 | STRLEN pos, len, byte_len, byte_pos; | |
777f7c56 | 3331 | |
83f78d1a FC |
3332 | if (!translate_substr_offsets( |
3333 | curlen, pos1_iv, pos1_is_uv, len_iv, len_is_uv, &pos, &len | |
3334 | )) goto bound_fail; | |
777f7c56 | 3335 | |
83f78d1a FC |
3336 | byte_len = len; |
3337 | byte_pos = utf8_curlen | |
0d788f38 | 3338 | ? sv_or_pv_pos_u2b(sv, tmps, pos, &byte_len) : pos; |
d931b1be | 3339 | |
2154eca7 | 3340 | tmps += byte_pos; |
bbddc9e0 CS |
3341 | |
3342 | if (rvalue) { | |
3343 | SvTAINTED_off(TARG); /* decontaminate */ | |
3344 | SvUTF8_off(TARG); /* decontaminate */ | |
3345 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3346 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3347 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3348 | #endif |
bbddc9e0 CS |
3349 | if (utf8_curlen) |
3350 | SvUTF8_on(TARG); | |
3351 | } | |
2154eca7 | 3352 | |
f7928d6c | 3353 | if (repl) { |
13e30c65 JH |
3354 | SV* repl_sv_copy = NULL; |
3355 | ||
3356 | if (repl_need_utf8_upgrade) { | |
3357 | repl_sv_copy = newSVsv(repl_sv); | |
3358 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3359 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 | 3360 | } |
502d9230 | 3361 | if (!SvOK(sv)) |
500f3e18 | 3362 | SvPVCLEAR(sv); |
777f7c56 | 3363 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
ef8d46e8 | 3364 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3365 | } |
79072805 | 3366 | } |
6a9665b0 FC |
3367 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) |
3368 | SP++; | |
3369 | else if (rvalue) { | |
bbddc9e0 CS |
3370 | SvSETMAGIC(TARG); |
3371 | PUSHs(TARG); | |
3372 | } | |
79072805 | 3373 | RETURN; |
777f7c56 | 3374 | |
7b52d656 | 3375 | bound_fail: |
83f78d1a | 3376 | if (repl) |
777f7c56 EB |
3377 | Perl_croak(aTHX_ "substr outside of string"); |
3378 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3379 | RETPUSHUNDEF; | |
79072805 LW |
3380 | } |
3381 | ||
3382 | PP(pp_vec) | |
3383 | { | |
20b7effb | 3384 | dSP; |
eb578fdb | 3385 | const IV size = POPi; |
d69c4304 | 3386 | SV* offsetsv = POPs; |
eb578fdb | 3387 | SV * const src = POPs; |
1b6737cc | 3388 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2154eca7 | 3389 | SV * ret; |
1b92e694 DM |
3390 | UV retuv; |
3391 | STRLEN offset = 0; | |
3392 | char errflags = 0; | |
d69c4304 DM |
3393 | |
3394 | /* extract a STRLEN-ranged integer value from offsetsv into offset, | |
1b92e694 | 3395 | * or flag that its out of range */ |
d69c4304 DM |
3396 | { |
3397 | IV iv = SvIV(offsetsv); | |
3398 | ||
3399 | /* avoid a large UV being wrapped to a negative value */ | |
1b92e694 | 3400 | if (SvIOK_UV(offsetsv) && SvUVX(offsetsv) > (UV)IV_MAX) |
b063b0a8 | 3401 | errflags = LVf_OUT_OF_RANGE; |
1b92e694 | 3402 | else if (iv < 0) |
b063b0a8 | 3403 | errflags = (LVf_NEG_OFF|LVf_OUT_OF_RANGE); |
d69c4304 | 3404 | #if PTRSIZE < IVSIZE |
1b92e694 | 3405 | else if (iv > Size_t_MAX) |
b063b0a8 | 3406 | errflags = LVf_OUT_OF_RANGE; |
d69c4304 | 3407 | #endif |
1b92e694 DM |
3408 | else |
3409 | offset = (STRLEN)iv; | |
d69c4304 DM |
3410 | } |
3411 | ||
1b92e694 | 3412 | retuv = errflags ? 0 : do_vecget(src, offset, size); |
a0d0e21e | 3413 | |
81e118e0 | 3414 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3415 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3416 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3417 | LvTYPE(ret) = 'v'; | |
3418 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3419 | LvTARGOFF(ret) = offset; | |
3420 | LvTARGLEN(ret) = size; | |
1b92e694 | 3421 | LvFLAGS(ret) = errflags; |
2154eca7 EB |
3422 | } |
3423 | else { | |
3424 | dTARGET; | |
3425 | SvTAINTED_off(TARG); /* decontaminate */ | |
3426 | ret = TARG; | |
79072805 LW |
3427 | } |
3428 | ||
d69c4304 | 3429 | sv_setuv(ret, retuv); |
f9e95907 FC |
3430 | if (!lvalue) |
3431 | SvSETMAGIC(ret); | |
2154eca7 | 3432 | PUSHs(ret); |
79072805 LW |
3433 | RETURN; |
3434 | } | |
3435 | ||
b1c05ba5 DM |
3436 | |
3437 | /* also used for: pp_rindex() */ | |
3438 | ||
79072805 LW |
3439 | PP(pp_index) |
3440 | { | |
20b7effb | 3441 | dSP; dTARGET; |
79072805 LW |
3442 | SV *big; |
3443 | SV *little; | |
c445ea15 | 3444 | SV *temp = NULL; |
ad66a58c | 3445 | STRLEN biglen; |
2723d216 | 3446 | STRLEN llen = 0; |
b464e2b7 TC |
3447 | SSize_t offset = 0; |
3448 | SSize_t retval; | |
73ee8be2 NC |
3449 | const char *big_p; |
3450 | const char *little_p; | |
2f040f7f NC |
3451 | bool big_utf8; |
3452 | bool little_utf8; | |
2723d216 | 3453 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3454 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3455 | |
e1dccc0d Z |
3456 | if (threeargs) |
3457 | offset = POPi; | |
79072805 LW |
3458 | little = POPs; |
3459 | big = POPs; | |
73ee8be2 NC |
3460 | big_p = SvPV_const(big, biglen); |
3461 | little_p = SvPV_const(little, llen); | |
3462 | ||
e609e586 NC |
3463 | big_utf8 = DO_UTF8(big); |
3464 | little_utf8 = DO_UTF8(little); | |
3465 | if (big_utf8 ^ little_utf8) { | |
3466 | /* One needs to be upgraded. */ | |
8df0e7a2 | 3467 | if (little_utf8) { |
2f040f7f NC |
3468 | /* Well, maybe instead we might be able to downgrade the small |
3469 | string? */ | |
1eced8f8 | 3470 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3471 | &little_utf8); |
3472 | if (little_utf8) { | |
3473 | /* If the large string is ISO-8859-1, and it's not possible to | |
3474 | convert the small string to ISO-8859-1, then there is no | |
3475 | way that it could be found anywhere by index. */ | |
3476 | retval = -1; | |
7e8d786b | 3477 | goto push_result; |
2f040f7f | 3478 | } |
e609e586 | 3479 | |
2f040f7f NC |
3480 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3481 | to ensure it will get free()d */ | |
3482 | little = temp = newSV(0); | |
73ee8be2 NC |
3483 | sv_usepvn(temp, pv, llen); |
3484 | little_p = SvPVX(little); | |
e609e586 | 3485 | } else { |
20e67ba1 | 3486 | temp = newSVpvn(little_p, llen); |
2f040f7f | 3487 | |
8df0e7a2 | 3488 | sv_utf8_upgrade(temp); |
20e67ba1 FC |
3489 | little = temp; |
3490 | little_p = SvPV_const(little, llen); | |
e609e586 NC |
3491 | } |
3492 | } | |
73ee8be2 NC |
3493 | if (SvGAMAGIC(big)) { |
3494 | /* Life just becomes a lot easier if I use a temporary here. | |
3495 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3496 | will trigger magic and overloading again, as will fbm_instr() | |
3497 | */ | |
59cd0e26 NC |
3498 | big = newSVpvn_flags(big_p, biglen, |
3499 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3500 | big_p = SvPVX(big); |
3501 | } | |
e4e44778 | 3502 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3503 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3504 | warn on undef, and we've already triggered a warning with the | |
3505 | SvPV_const some lines above. We can't remove that, as we need to | |
3506 | call some SvPV to trigger overloading early and find out if the | |
3507 | string is UTF-8. | |
8bd97c0c | 3508 | This is all getting too messy. The API isn't quite clean enough, |
73ee8be2 NC |
3509 | because data access has side effects. |
3510 | */ | |
59cd0e26 NC |
3511 | little = newSVpvn_flags(little_p, llen, |
3512 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3513 | little_p = SvPVX(little); |
3514 | } | |
e609e586 | 3515 | |
d3e26383 | 3516 | if (!threeargs) |
2723d216 | 3517 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3518 | else { |
ad66a58c | 3519 | if (big_utf8 && offset > 0) |
b464e2b7 | 3520 | offset = sv_pos_u2b_flags(big, offset, 0, SV_CONST_RETURN); |
73ee8be2 NC |
3521 | if (!is_index) |
3522 | offset += llen; | |
a0ed51b3 | 3523 | } |
79072805 LW |
3524 | if (offset < 0) |
3525 | offset = 0; | |
b464e2b7 | 3526 | else if (offset > (SSize_t)biglen) |
ad66a58c | 3527 | offset = biglen; |
73ee8be2 NC |
3528 | if (!(little_p = is_index |
3529 | ? fbm_instr((unsigned char*)big_p + offset, | |
3530 | (unsigned char*)big_p + biglen, little, 0) | |
3531 | : rninstr(big_p, big_p + offset, | |
3532 | little_p, little_p + llen))) | |
a0ed51b3 | 3533 | retval = -1; |
ad66a58c | 3534 | else { |
73ee8be2 | 3535 | retval = little_p - big_p; |
15c41403 | 3536 | if (retval > 1 && big_utf8) |
b464e2b7 | 3537 | retval = sv_pos_b2u_flags(big, retval, SV_CONST_RETURN); |
ad66a58c | 3538 | } |
ef8d46e8 | 3539 | SvREFCNT_dec(temp); |
7e8d786b DM |
3540 | |
3541 | push_result: | |
3542 | /* OPpTRUEBOOL indicates an '== -1' has been optimised away */ | |
3543 | if (PL_op->op_private & OPpTRUEBOOL) { | |
3544 | PUSHs( ((retval != -1) ^ cBOOL(PL_op->op_private & OPpINDEX_BOOLNEG)) | |
3545 | ? &PL_sv_yes : &PL_sv_no); | |
3546 | if (PL_op->op_private & OPpTARGET_MY) | |
3547 | /* $lex = (index() == -1) */ | |
3548 | sv_setsv(TARG, TOPs); | |
3549 | } | |
a8e41ef4 | 3550 | else |
7e8d786b | 3551 | PUSHi(retval); |
79072805 LW |
3552 | RETURN; |
3553 | } | |
3554 | ||
3555 | PP(pp_sprintf) | |
3556 | { | |
20b7effb | 3557 | dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3558 | SvTAINTED_off(TARG); |
79072805 | 3559 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3560 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3561 | SP = ORIGMARK; |
3562 | PUSHTARG; | |
3563 | RETURN; | |
3564 | } | |
3565 | ||
79072805 LW |
3566 | PP(pp_ord) |
3567 | { | |
20b7effb | 3568 | dSP; dTARGET; |
1eced8f8 | 3569 | |
6ba92227 | 3570 | SV *argsv = TOPs; |
ba210ebe | 3571 | STRLEN len; |
349d4f2f | 3572 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3573 | |
6ba92227 | 3574 | SETu(DO_UTF8(argsv) |
aee9b917 | 3575 | ? (len ? utf8n_to_uvchr(s, len, 0, UTF8_ALLOW_ANYUV) : 0) |
f3943cf2 | 3576 | : (UV)(*s)); |
68795e93 | 3577 | |
6ba92227 | 3578 | return NORMAL; |
79072805 LW |
3579 | } |
3580 | ||
463ee0b2 LW |
3581 | PP(pp_chr) |
3582 | { | |
20b7effb | 3583 | dSP; dTARGET; |
463ee0b2 | 3584 | char *tmps; |
8a064bd6 | 3585 | UV value; |
d3261b99 | 3586 | SV *top = TOPs; |
8a064bd6 | 3587 | |
71739502 | 3588 | SvGETMAGIC(top); |
9911fc4e FC |
3589 | if (UNLIKELY(SvAMAGIC(top))) |
3590 | top = sv_2num(top); | |
99f450cc | 3591 | if (UNLIKELY(isinfnansv(top))) |
147e3846 | 3592 | Perl_croak(aTHX_ "Cannot chr %" NVgf, SvNV(top)); |
1cd88304 JH |
3593 | else { |
3594 | if (!IN_BYTES /* under bytes, chr(-1) eq chr(0xff), etc. */ | |
3595 | && ((SvIOKp(top) && !SvIsUV(top) && SvIV_nomg(top) < 0) | |
3596 | || | |
3597 | ((SvNOKp(top) || (SvOK(top) && !SvIsUV(top))) | |
2cc2a5a0 KW |
3598 | && SvNV_nomg(top) < 0.0))) |
3599 | { | |
b3fe8680 FC |
3600 | if (ckWARN(WARN_UTF8)) { |
3601 | if (SvGMAGICAL(top)) { | |
3602 | SV *top2 = sv_newmortal(); | |
3603 | sv_setsv_nomg(top2, top); | |
3604 | top = top2; | |
3605 | } | |
1cd88304 | 3606 | Perl_warner(aTHX_ packWARN(WARN_UTF8), |
147e3846 | 3607 | "Invalid negative number (%" SVf ") in chr", SVfARG(top)); |
1cd88304 JH |
3608 | } |
3609 | value = UNICODE_REPLACEMENT; | |
3610 | } else { | |
3611 | value = SvUV_nomg(top); | |
3612 | } | |
8a064bd6 | 3613 | } |
463ee0b2 | 3614 | |
862a34c6 | 3615 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3616 | |
0064a8a9 | 3617 | if (value > 255 && !IN_BYTES) { |
5f560d8a | 3618 | SvGROW(TARG, (STRLEN)UVCHR_SKIP(value)+1); |
62961d2e | 3619 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3620 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3621 | *tmps = '\0'; |
3622 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3623 | SvUTF8_on(TARG); |
d3261b99 FC |
3624 | SETTARG; |
3625 | return NORMAL; | |
a0ed51b3 LW |
3626 | } |
3627 | ||
748a9306 | 3628 | SvGROW(TARG,2); |
463ee0b2 LW |
3629 | SvCUR_set(TARG, 1); |
3630 | tmps = SvPVX(TARG); | |
eb160463 | 3631 | *tmps++ = (char)value; |
748a9306 | 3632 | *tmps = '\0'; |
a0d0e21e | 3633 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3634 | |
d3261b99 FC |
3635 | SETTARG; |
3636 | return NORMAL; | |
463ee0b2 LW |
3637 | } |
3638 | ||
79072805 LW |
3639 | PP(pp_crypt) |
3640 | { | |
79072805 | 3641 | #ifdef HAS_CRYPT |
20b7effb | 3642 | dSP; dTARGET; |
5f74f29c | 3643 | dPOPTOPssrl; |
85c16d83 | 3644 | STRLEN len; |
10516c54 | 3645 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3646 | |
85c16d83 | 3647 | if (DO_UTF8(left)) { |
2bc69dc4 | 3648 | /* If Unicode, try to downgrade. |
f2791508 JH |
3649 | * If not possible, croak. |
3650 | * Yes, we made this up. */ | |
659fbb76 | 3651 | SV* const tsv = newSVpvn_flags(tmps, len, SVf_UTF8|SVs_TEMP); |
2bc69dc4 | 3652 | |
2bc69dc4 | 3653 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3654 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3655 | } |
05404ffe JH |
3656 | # ifdef USE_ITHREADS |
3657 | # ifdef HAS_CRYPT_R | |
3658 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3659 | /* This should be threadsafe because in ithreads there is only | |
3660 | * one thread per interpreter. If this would not be true, | |
3661 | * we would need a mutex to protect this malloc. */ | |
3662 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3663 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3664 | #if defined(__GLIBC__) || defined(__EMX__) | |
3665 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3666 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
e9c9cf57 DM |
3667 | #if (defined(__GLIBC__) && __GLIBC__ == 2) && \ |
3668 | (defined(__GLIBC_MINOR__) && __GLIBC_MINOR__ >= 2 && __GLIBC_MINOR__ < 4) | |
3669 | /* work around glibc-2.2.5 bug, has been fixed at some | |
3670 | * time in glibc-2.3.X */ | |
05404ffe | 3671 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; |
e9c9cf57 | 3672 | #endif |
05404ffe | 3673 | } |
05404ffe | 3674 | #endif |
6ab58e4d | 3675 | } |
05404ffe JH |
3676 | # endif /* HAS_CRYPT_R */ |
3677 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3678 | # ifdef FCRYPT |
83003860 | 3679 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3680 | # else |
83003860 | 3681 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3682 | # endif |
fbc76eb3 | 3683 | SvUTF8_off(TARG); |
ec93b65f | 3684 | SETTARG; |
4808266b | 3685 | RETURN; |
79072805 | 3686 | #else |
b13b2135 | 3687 | DIE(aTHX_ |
79072805 LW |
3688 | "The crypt() function is unimplemented due to excessive paranoia."); |
3689 | #endif | |
79072805 LW |
3690 | } |
3691 | ||
a8e41ef4 | 3692 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
00f254e2 KW |
3693 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ |
3694 | ||
b1c05ba5 DM |
3695 | |
3696 | /* also used for: pp_lcfirst() */ | |
3697 | ||
79072805 LW |
3698 | PP(pp_ucfirst) |
3699 | { | |
00f254e2 KW |
3700 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3701 | * changes. This means that possibly we can change in-place, ie., just | |
3702 | * take the source and change that one character and store it back, but not | |
3703 | * if read-only etc, or if the length changes */ | |
3704 | ||
39644a26 | 3705 | dSP; |
d54190f6 | 3706 | SV *source = TOPs; |
00f254e2 | 3707 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3708 | STRLEN need; |
3709 | SV *dest; | |
00f254e2 KW |
3710 | bool inplace; /* ? Convert first char only, in-place */ |
3711 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3712 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3713 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3714 | const U8 *s; |
3715 | U8 *d; | |
3716 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3717 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3718 | * stored as UTF-8 at s. */ | |
3719 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3720 | * lowercased) character stored in tmpbuf. May be either | |
3721 | * UTF-8 or not, but in either case is the number of bytes */ | |
be42d347 | 3722 | bool remove_dot_above = FALSE; |
d54190f6 | 3723 | |
841a5e18 | 3724 | s = (const U8*)SvPV_const(source, slen); |
a0ed51b3 | 3725 | |
00f254e2 KW |
3726 | /* We may be able to get away with changing only the first character, in |
3727 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3728 | * not convert in-place. */ | |
1921e031 | 3729 | inplace = !SvREADONLY(source) && SvPADTMP(source); |
00f254e2 | 3730 | |
8b7358b9 KW |
3731 | #ifdef USE_LOCALE_CTYPE |
3732 | ||
3733 | if (IN_LC_RUNTIME(LC_CTYPE)) { | |
3734 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
3735 | } | |
3736 | ||
3737 | #endif | |
3738 | ||
00f254e2 KW |
3739 | /* First calculate what the changed first character should be. This affects |
3740 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3741 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3742 | ||
3743 | if (! slen) { /* If empty */ | |
3744 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3745 | ulen = 0; |
62e6b705 | 3746 | *tmpbuf = '\0'; |
00f254e2 KW |
3747 | } |
3748 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3749 | doing_utf8 = TRUE; |
17e95c9d | 3750 | ulen = UTF8SKIP(s); |
190e86d7 | 3751 | |
094a2f8c | 3752 | if (op_type == OP_UCFIRST) { |
130c5df3 | 3753 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 3754 | _toTITLE_utf8_flags(s, s +slen, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3755 | #else |
a1a5ec35 | 3756 | _toTITLE_utf8_flags(s, s +slen, tmpbuf, &tculen, 0); |
130c5df3 | 3757 | #endif |
094a2f8c KW |
3758 | } |
3759 | else { | |
a8e41ef4 | 3760 | |
130c5df3 | 3761 | #ifdef USE_LOCALE_CTYPE |
a8e41ef4 | 3762 | |
a1a5ec35 | 3763 | _toLOWER_utf8_flags(s, s + slen, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
be42d347 KW |
3764 | |
3765 | /* In turkic locales, lower casing an 'I' normally yields U+0131, | |
3766 | * LATIN SMALL LETTER DOTLESS I, but not if the grapheme also | |
3767 | * contains a COMBINING DOT ABOVE. Instead it is treated like | |
3768 | * LATIN CAPITAL LETTER I WITH DOT ABOVE lowercased to 'i'. The | |
3769 | * call to lowercase above has handled this. But SpecialCasing.txt | |
3770 | * says we are supposed to remove the COMBINING DOT ABOVE. We can | |
3771 | * tell if we have this situation if I ==> i in a turkic locale. */ | |
3772 | if ( UNLIKELY(PL_in_utf8_turkic_locale) | |
3773 | && IN_LC_RUNTIME(LC_CTYPE) | |
3774 | && (UNLIKELY(*s == 'I' && tmpbuf[0] == 'i'))) | |
3775 | { | |
3776 | /* Here, we know there was a COMBINING DOT ABOVE. We won't be | |
3777 | * able to handle this in-place. */ | |
3778 | inplace = FALSE; | |
3779 | ||
3780 | /* It seems likely that the DOT will immediately follow the | |
3781 | * 'I'. If so, we can remove it simply by indicating to the | |
3782 | * code below to start copying the source just beyond the DOT. | |
3783 | * We know its length is 2 */ | |
3784 | if (LIKELY(memBEGINs(s + 1, s + slen, COMBINING_DOT_ABOVE_UTF8))) { | |
3785 | ulen += 2; | |
3786 | } | |
3787 | else { /* But if it doesn't follow immediately, set a flag for | |
3788 | the code below */ | |
3789 | remove_dot_above = TRUE; | |
3790 | } | |
3791 | } | |
130c5df3 | 3792 | #else |
be42d347 KW |
3793 | PERL_UNUSED_VAR(remove_dot_above); |
3794 | ||
a1a5ec35 | 3795 | _toLOWER_utf8_flags(s, s + slen, tmpbuf, &tculen, 0); |
130c5df3 | 3796 | #endif |
a8e41ef4 KW |
3797 | |
3798 | } | |
00f254e2 | 3799 | |
17e95c9d KW |
3800 | /* we can't do in-place if the length changes. */ |
3801 | if (ulen != tculen) inplace = FALSE; | |
3802 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3803 | } |
00f254e2 KW |
3804 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3805 | * latin1 is treated as caseless. Note that a locale takes | |
a8e41ef4 | 3806 | * precedence */ |
167d19f2 | 3807 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3808 | tculen = 1; /* Most characters will require one byte, but this will |
3809 | * need to be overridden for the tricky ones */ | |
3810 | need = slen + 1; | |
3811 | ||
d54190f6 | 3812 | |
130c5df3 | 3813 | #ifdef USE_LOCALE_CTYPE |
be42d347 KW |
3814 | |
3815 | if (IN_LC_RUNTIME(LC_CTYPE)) { | |
3816 | if ( UNLIKELY(PL_in_utf8_turkic_locale) | |
3817 | && ( (op_type == OP_LCFIRST && UNLIKELY(*s == 'I')) | |
3818 | || (op_type == OP_UCFIRST && UNLIKELY(*s == 'i')))) | |
780fcc9f | 3819 | { |
be42d347 KW |
3820 | if (*s == 'I') { /* lcfirst('I') */ |
3821 | tmpbuf[0] = UTF8_TWO_BYTE_HI(LATIN_SMALL_LETTER_DOTLESS_I); | |
3822 | tmpbuf[1] = UTF8_TWO_BYTE_LO(LATIN_SMALL_LETTER_DOTLESS_I); | |
3823 | } | |
3824 | else { /* ucfirst('i') */ | |
3825 | tmpbuf[0] = UTF8_TWO_BYTE_HI(LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE); | |
3826 | tmpbuf[1] = UTF8_TWO_BYTE_LO(LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE); | |
3827 | } | |
3828 | tculen = 2; | |
3829 | inplace = FALSE; | |
3830 | doing_utf8 = TRUE; | |
3831 | convert_source_to_utf8 = TRUE; | |
3832 | need += variant_under_utf8_count(s, s + slen); | |
780fcc9f | 3833 | } |
be42d347 KW |
3834 | else if (op_type == OP_LCFIRST) { |
3835 | ||
3836 | /* For lc, there are no gotchas for UTF-8 locales (other than | |
3837 | * the turkish ones already handled above) */ | |
3838 | *tmpbuf = toLOWER_LC(*s); | |
31f05a37 | 3839 | } |
be42d347 | 3840 | else { /* ucfirst */ |
31f05a37 | 3841 | |
be42d347 KW |
3842 | /* But for uc, some characters require special handling */ |
3843 | if (IN_UTF8_CTYPE_LOCALE) { | |
3844 | goto do_uni_rules; | |
3845 | } | |
3846 | ||
3847 | /* This would be a bug if any locales have upper and title case | |
3848 | * different */ | |
3849 | *tmpbuf = (U8) toUPPER_LC(*s); | |
3850 | } | |
3851 | } | |
3852 | else | |
130c5df3 | 3853 | #endif |
be42d347 KW |
3854 | /* Here, not in locale. If not using Unicode rules, is a simple |
3855 | * lower/upper, depending */ | |
3856 | if (! IN_UNI_8_BIT) { | |
3857 | *tmpbuf = (op_type == OP_LCFIRST) | |
3858 | ? toLOWER(*s) | |
3859 | : toUPPER(*s); | |
3860 | } | |
3861 | else if (op_type == OP_LCFIRST) { | |
3862 | /* lower case the first letter: no trickiness for any character */ | |
3863 | *tmpbuf = toLOWER_LATIN1(*s); | |
3864 | } | |
31f05a37 KW |
3865 | else { |
3866 | /* Here, is ucfirst non-UTF-8, not in locale (unless that locale is | |
be42d347 KW |
3867 | * non-turkic UTF-8, which we treat as not in locale), and cased |
3868 | * latin1 */ | |
31f05a37 | 3869 | UV title_ord; |
91191cf7 | 3870 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 3871 | do_uni_rules: |
91191cf7 | 3872 | #endif |
31f05a37 KW |
3873 | |
3874 | title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); | |
167d19f2 KW |
3875 | if (tculen > 1) { |
3876 | assert(tculen == 2); | |
3877 | ||
3878 | /* If the result is an upper Latin1-range character, it can | |
3879 | * still be represented in one byte, which is its ordinal */ | |
3880 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3881 | *tmpbuf = (U8) title_ord; | |
3882 | tculen = 1; | |
00f254e2 KW |
3883 | } |
3884 | else { | |
167d19f2 KW |
3885 | /* Otherwise it became more than one ASCII character (in |
3886 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3887 | * beyond Latin1, so the number of bytes changed, so can't | |
3888 | * replace just the first character in place. */ | |
3889 | inplace = FALSE; | |
3890 | ||
d14578b8 | 3891 | /* If the result won't fit in a byte, the entire result |
2f8f985a KW |
3892 | * will have to be in UTF-8. Allocate enough space for the |
3893 | * expanded first byte, and if UTF-8, the rest of the input | |
3894 | * string, some or all of which may also expand to two | |
3895 | * bytes, plus the terminating NUL. */ | |
167d19f2 KW |
3896 | if (title_ord > 255) { |
3897 | doing_utf8 = TRUE; | |
3898 | convert_source_to_utf8 = TRUE; | |
2f8f985a KW |
3899 | need = slen |
3900 | + variant_under_utf8_count(s, s + slen) | |
3901 | + 1; | |
167d19f2 KW |
3902 | |
3903 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
be42d347 | 3904 | * characters whose title case is above 255 is |
167d19f2 KW |
3905 | * 2. */ |
3906 | ulen = 2; | |
3907 | } | |
3908 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3909 | need = slen + 1 + 1; | |
3910 | } | |
00f254e2 | 3911 | } |
167d19f2 | 3912 | } |
00f254e2 KW |
3913 | } /* End of use Unicode (Latin1) semantics */ |
3914 | } /* End of changing the case of the first character */ | |
3915 | ||
3916 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3917 | * generate the result */ | |
3918 | if (inplace) { | |
3919 | ||
3920 | /* We can convert in place. This means we change just the first | |
3921 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3922 | dest = source; |
3923 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3924 | } else { | |
3925 | dTARGET; | |
3926 | ||
3927 | dest = TARG; | |
3928 | ||
00f254e2 KW |
3929 | /* Here, we can't convert in place; we earlier calculated how much |
3930 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3931 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3932 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3933 | (void)SvPOK_only(dest); |
3934 | ||
3935 | SETs(dest); | |
d54190f6 | 3936 | } |
44bc797b | 3937 | |
d54190f6 | 3938 | if (doing_utf8) { |
00f254e2 KW |
3939 | if (! inplace) { |
3940 | if (! convert_source_to_utf8) { | |
3941 | ||
3942 | /* Here both source and dest are in UTF-8, but have to create | |
3943 | * the entire output. We initialize the result to be the | |
3944 | * title/lower cased first character, and then append the rest | |
3945 | * of the string. */ | |
3946 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3947 | if (slen > ulen) { | |
be42d347 KW |
3948 | |
3949 | /* But this boolean being set means we are in a turkic | |
3950 | * locale, and there is a DOT character that needs to be | |
3951 | * removed, and it isn't immediately after the current | |
3952 | * character. Keep concatenating characters to the output | |
3953 | * one at a time, until we find the DOT, which we simply | |
3954 | * skip */ | |
3955 | if (UNLIKELY(remove_dot_above)) { | |
3956 | do { | |
3957 | Size_t this_len = UTF8SKIP(s + ulen); | |
3958 | ||
3959 | sv_catpvn(dest, (char*)(s + ulen), this_len); | |
3960 | ||
3961 | ulen += this_len; | |
3962 | if (memBEGINs(s + ulen, s + slen, COMBINING_DOT_ABOVE_UTF8)) { | |
3963 | ulen += 2; | |
3964 | break; | |
3965 | } | |
3966 | } while (s + ulen < s + slen); | |
3967 | } | |
3968 | ||
3969 | /* The rest of the string can be concatenated unchanged, | |
3970 | * all at once */ | |
00f254e2 KW |
3971 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); |
3972 | } | |
3973 | } | |
3974 | else { | |
3975 | const U8 *const send = s + slen; | |
3976 | ||
3977 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3978 | * except we earlier UTF-8'd the first character of the source | |
3979 | * into tmpbuf. First put that into dest, and then append the | |
3980 | * rest of the source, converting it to UTF-8 as we go. */ | |
3981 | ||
be42d347 | 3982 | /* Assert tculen is 2 here because the only characters that |
00f254e2 | 3983 | * get to this part of the code have 2-byte UTF-8 equivalents */ |
f4cd1cd9 | 3984 | assert(tculen == 2); |
00f254e2 KW |
3985 | *d++ = *tmpbuf; |
3986 | *d++ = *(tmpbuf + 1); | |
3987 | s++; /* We have just processed the 1st char */ | |
3988 | ||
df7d4938 KW |
3989 | while (s < send) { |
3990 | append_utf8_from_native_byte(*s, &d); | |
3991 | s++; | |
3992 | } | |
3993 | ||
00f254e2 KW |
3994 | *d = '\0'; |
3995 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3996 | } | |
d54190f6 | 3997 | SvUTF8_on(dest); |
a0ed51b3 | 3998 | } |
00f254e2 | 3999 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
4000 | Copy(tmpbuf, d, tculen, U8); |
4001 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 4002 | } |
094a2f8c | 4003 | |
a0ed51b3 | 4004 | } |
a8e41ef4 | 4005 | else { /* Neither source nor dest are, nor need to be UTF-8 */ |
00f254e2 | 4006 | if (slen) { |
00f254e2 KW |
4007 | if (inplace) { /* in-place, only need to change the 1st char */ |
4008 | *d = *tmpbuf; | |
4009 | } | |
4010 | else { /* Not in-place */ | |
4011 | ||
4012 | /* Copy the case-changed character(s) from tmpbuf */ | |
4013 | Copy(tmpbuf, d, tculen, U8); | |
4014 | d += tculen - 1; /* Code below expects d to point to final | |
4015 | * character stored */ | |
4016 | } | |
4017 | } | |
4018 | else { /* empty source */ | |
4019 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
4020 | *d = *s; |
4021 | } | |
4022 | ||
00f254e2 KW |
4023 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
4024 | * the destination to retain that flag */ | |
9edbb8b2 | 4025 | if (DO_UTF8(source)) |
d54190f6 NC |
4026 | SvUTF8_on(dest); |
4027 | ||
00f254e2 | 4028 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
4029 | /* This will copy the trailing NUL */ |
4030 | Copy(s + 1, d + 1, slen, U8); | |
4031 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 4032 | } |
bbce6d69 | 4033 | } |
130c5df3 | 4034 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4035 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4036 | TAINT; |
4037 | SvTAINTED_on(dest); | |
4038 | } | |
130c5df3 | 4039 | #endif |
539689e7 FC |
4040 | if (dest != source && SvTAINTED(source)) |
4041 | SvTAINT(dest); | |
d54190f6 | 4042 | SvSETMAGIC(dest); |
3cb4e04f | 4043 | return NORMAL; |
79072805 LW |
4044 | } |
4045 | ||
4046 | PP(pp_uc) | |
4047 | { | |
1565c085 | 4048 | dVAR; |
39644a26 | 4049 | dSP; |
67306194 | 4050 | SV *source = TOPs; |
463ee0b2 | 4051 | STRLEN len; |
67306194 NC |
4052 | STRLEN min; |
4053 | SV *dest; | |
4054 | const U8 *s; | |
4055 | U8 *d; | |
79072805 | 4056 | |
67306194 NC |
4057 | SvGETMAGIC(source); |
4058 | ||
1921e031 | 4059 | if ( SvPADTMP(source) |
5cd5e2d6 FC |
4060 | && !SvREADONLY(source) && SvPOK(source) |
4061 | && !DO_UTF8(source) | |
130c5df3 KW |
4062 | && ( |
4063 | #ifdef USE_LOCALE_CTYPE | |
4064 | (IN_LC_RUNTIME(LC_CTYPE)) | |
31f05a37 | 4065 | ? ! IN_UTF8_CTYPE_LOCALE |
130c5df3 KW |
4066 | : |
4067 | #endif | |
4068 | ! IN_UNI_8_BIT)) | |
31f05a37 KW |
4069 | { |
4070 | ||
4071 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
4072 | * make the loop tight, so we overwrite the source with the dest before | |
4073 | * looking at it, and we need to look at the original source | |
4074 | * afterwards. There would also need to be code added to handle | |
4075 | * switching to not in-place in midstream if we run into characters | |
4076 | * that change the length. Since being in locale overrides UNI_8_BIT, | |
4077 | * that latter becomes irrelevant in the above test; instead for | |
4078 | * locale, the size can't normally change, except if the locale is a | |
4079 | * UTF-8 one */ | |
67306194 NC |
4080 | dest = source; |
4081 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4082 | min = len + 1; | |
4083 | } else { | |
a0ed51b3 | 4084 | dTARGET; |
a0ed51b3 | 4085 | |
67306194 | 4086 | dest = TARG; |
128c9517 | 4087 | |
841a5e18 | 4088 | s = (const U8*)SvPV_nomg_const(source, len); |
67306194 NC |
4089 | min = len + 1; |
4090 | ||
4091 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 4092 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
4093 | (void)SvPOK_only(dest); |
4094 | ||
4095 | SETs(dest); | |
a0ed51b3 | 4096 | } |
31351b04 | 4097 | |
8b7358b9 KW |
4098 | #ifdef USE_LOCALE_CTYPE |
4099 | ||
4100 | if (IN_LC_RUNTIME(LC_CTYPE)) { | |
4101 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
4102 | } | |
4103 | ||
4104 | #endif | |
4105 | ||
67306194 NC |
4106 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
4107 | to check DO_UTF8 again here. */ | |
4108 | ||
4109 | if (DO_UTF8(source)) { | |
4110 | const U8 *const send = s + len; | |
bfac13d4 | 4111 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
67306194 | 4112 | |
78ed8e36 KW |
4113 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 |
4114 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
4c8a458a KW |
4115 | /* All occurrences of these are to be moved to follow any other marks. |
4116 | * This is context-dependent. We may not be passed enough context to | |
4117 | * move the iota subscript beyond all of them, but we do the best we can | |
4118 | * with what we're given. The result is always better than if we | |
4119 | * hadn't done this. And, the problem would only arise if we are | |
4120 | * passed a character without all its combining marks, which would be | |
4121 | * the caller's mistake. The information this is based on comes from a | |
4122 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
4123 | * itself) and so can't be checked properly to see if it ever gets | |
4124 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 4125 | bool in_iota_subscript = FALSE; |
00f254e2 | 4126 | |
67306194 | 4127 | while (s < send) { |
3e16b0e6 KW |
4128 | STRLEN u; |
4129 | STRLEN ulen; | |
4130 | UV uv; | |
dbb3849a KW |
4131 | if (UNLIKELY(in_iota_subscript)) { |
4132 | UV cp = utf8_to_uvchr_buf(s, send, NULL); | |
4133 | ||
4134 | if (! _invlist_contains_cp(PL_utf8_mark, cp)) { | |
3e16b0e6 | 4135 | |
79ba2767 KW |
4136 | /* A non-mark. Time to output the iota subscript */ |
4137 | *d++ = UTF8_TWO_BYTE_HI(GREEK_CAPITAL_LETTER_IOTA); | |
4138 | *d++ = UTF8_TWO_BYTE_LO(GREEK_CAPITAL_LETTER_IOTA); | |
4139 | in_iota_subscript = FALSE; | |
dbb3849a | 4140 | } |
8e058693 | 4141 | } |
00f254e2 | 4142 | |
8e058693 KW |
4143 | /* Then handle the current character. Get the changed case value |
4144 | * and copy it to the output buffer */ | |
00f254e2 | 4145 | |
8e058693 | 4146 | u = UTF8SKIP(s); |
130c5df3 | 4147 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 4148 | uv = _toUPPER_utf8_flags(s, send, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4149 | #else |
a1a5ec35 | 4150 | uv = _toUPPER_utf8_flags(s, send, tmpbuf, &ulen, 0); |
130c5df3 | 4151 | #endif |
8e058693 | 4152 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
4b88fb76 | 4153 | && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI) |
8e058693 KW |
4154 | { |
4155 | in_iota_subscript = TRUE; | |
4156 | } | |
4157 | else { | |
4158 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4159 | /* If the eventually required minimum size outgrows the | |
4160 | * available space, we need to grow. */ | |
4161 | const UV o = d - (U8*)SvPVX_const(dest); | |
4162 | ||
4163 | /* If someone uppercases one million U+03B0s we SvGROW() | |
4164 | * one million times. Or we could try guessing how much to | |
a8e41ef4 KW |
4165 | * allocate without allocating too much. But we can't |
4166 | * really guess without examining the rest of the string. | |
4167 | * Such is life. See corresponding comment in lc code for | |
4168 | * another option */ | |
10656159 | 4169 | d = o + (U8*) SvGROW(dest, min); |
8e058693 KW |
4170 | } |
4171 | Copy(tmpbuf, d, ulen, U8); | |
4172 | d += ulen; | |
4173 | } | |
4174 | s += u; | |
67306194 | 4175 | } |
4c8a458a | 4176 | if (in_iota_subscript) { |
78ed8e36 KW |
4177 | *d++ = UTF8_TWO_BYTE_HI(GREEK_CAPITAL_LETTER_IOTA); |
4178 | *d++ = UTF8_TWO_BYTE_LO(GREEK_CAPITAL_LETTER_IOTA); | |
4c8a458a | 4179 | } |
67306194 NC |
4180 | SvUTF8_on(dest); |
4181 | *d = '\0'; | |
094a2f8c | 4182 | |
67306194 | 4183 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4c8a458a KW |
4184 | } |
4185 | else { /* Not UTF-8 */ | |
67306194 NC |
4186 | if (len) { |
4187 | const U8 *const send = s + len; | |
00f254e2 KW |
4188 | |
4189 | /* Use locale casing if in locale; regular style if not treating | |
4190 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4191 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4192 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4193 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
4194 | if (IN_UTF8_CTYPE_LOCALE) { |
4195 | goto do_uni_rules; | |
4196 | } | |
67306194 | 4197 | for (; s < send; d++, s++) |
31f05a37 | 4198 | *d = (U8) toUPPER_LC(*s); |
31351b04 | 4199 | } |
130c5df3 KW |
4200 | else |
4201 | #endif | |
4202 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4203 | for (; s < send; d++, s++) { |
67306194 | 4204 | *d = toUPPER(*s); |
00f254e2 | 4205 | } |
31351b04 | 4206 | } |
00f254e2 | 4207 | else { |
91191cf7 | 4208 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4209 | do_uni_rules: |
91191cf7 | 4210 | #endif |
00f254e2 | 4211 | for (; s < send; d++, s++) { |
2f8f985a KW |
4212 | Size_t extra; |
4213 | ||
00f254e2 | 4214 | *d = toUPPER_LATIN1_MOD(*s); |
be42d347 KW |
4215 | if ( LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS) |
4216 | ||
4217 | #ifdef USE_LOCALE_CTYPE | |
4218 | ||
4219 | && (LIKELY( ! PL_in_utf8_turkic_locale | |
4220 | || ! IN_LC_RUNTIME(LC_CTYPE)) | |
4221 | || *s != 'i') | |
4222 | #endif | |
4223 | ||
4224 | ) { | |
d14578b8 KW |
4225 | continue; |
4226 | } | |
00f254e2 KW |
4227 | |
4228 | /* The mainstream case is the tight loop above. To avoid | |
be42d347 KW |
4229 | * extra tests in that, all three characters that always |
4230 | * require special handling are mapped by the MOD to the | |
4231 | * one tested just above. Use the source to distinguish | |
4232 | * between those cases */ | |
00f254e2 | 4233 | |
79e064b9 KW |
4234 | #if UNICODE_MAJOR_VERSION > 2 \ |
4235 | || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ | |
4236 | && UNICODE_DOT_DOT_VERSION >= 8) | |
00f254e2 KW |
4237 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { |
4238 | ||
4239 | /* uc() of this requires 2 characters, but they are | |
4240 | * ASCII. If not enough room, grow the string */ | |
a8e41ef4 | 4241 | if (SvLEN(dest) < ++min) { |
00f254e2 | 4242 | const UV o = d - (U8*)SvPVX_const(dest); |
10656159 | 4243 | d = o + (U8*) SvGROW(dest, min); |
00f254e2 KW |
4244 | } |
4245 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
4246 | continue; /* Back to the tight loop; still in ASCII */ | |
4247 | } | |
79e064b9 | 4248 | #endif |
00f254e2 | 4249 | |
be42d347 | 4250 | /* The other special handling characters have their |
00f254e2 | 4251 | * upper cases outside the latin1 range, hence need to be |
a8e41ef4 KW |
4252 | * in UTF-8, so the whole result needs to be in UTF-8. |
4253 | * | |
4254 | * So, here we are somewhere in the middle of processing a | |
4255 | * non-UTF-8 string, and realize that we will have to | |
4256 | * convert the whole thing to UTF-8. What to do? There | |
4257 | * are several possibilities. The simplest to code is to | |
4258 | * convert what we have so far, set a flag, and continue on | |
4259 | * in the loop. The flag would be tested each time through | |
4260 | * the loop, and if set, the next character would be | |
4261 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
4262 | * to slow down the mainstream case at all for this fairly | |
4263 | * rare case, so I didn't want to add a test that didn't | |
4264 | * absolutely have to be there in the loop, besides the | |
4265 | * possibility that it would get too complicated for | |
4266 | * optimizers to deal with. Another possibility is to just | |
4267 | * give up, convert the source to UTF-8, and restart the | |
4268 | * function that way. Another possibility is to convert | |
4269 | * both what has already been processed and what is yet to | |
4270 | * come separately to UTF-8, then jump into the loop that | |
4271 | * handles UTF-8. But the most efficient time-wise of the | |
4272 | * ones I could think of is what follows, and turned out to | |
2f8f985a KW |
4273 | * not require much extra code. |
4274 | * | |
4275 | * First, calculate the extra space needed for the | |
be42d347 KW |
4276 | * remainder of the source needing to be in UTF-8. Except |
4277 | * for the 'i' in Turkic locales, in UTF-8 strings, the | |
2f8f985a KW |
4278 | * uppercase of a character below 256 occupies the same |
4279 | * number of bytes as the original. Therefore, the space | |
4280 | * needed is the that number plus the number of characters | |
be42d347 KW |
4281 | * that become two bytes when converted to UTF-8, plus, in |
4282 | * turkish locales, the number of 'i's. */ | |
2f8f985a KW |
4283 | |
4284 | extra = send - s + variant_under_utf8_count(s, send); | |
a8e41ef4 | 4285 | |
be42d347 KW |
4286 | #ifdef USE_LOCALE_CTYPE |
4287 | ||
4288 | if (UNLIKELY(*s == 'i')) { /* We wouldn't get an 'i' here | |
4289 | unless are in a Turkic | |
4290 | locale */ | |
4291 | const U8 * s_peek = s; | |
4292 | ||
4293 | do { | |
4294 | extra++; | |
4295 | ||
4296 | s_peek = (U8 *) memchr(s_peek + 1, 'i', | |
4297 | send - (s_peek + 1)); | |
4298 | } while (s_peek != NULL); | |
4299 | } | |
4300 | #endif | |
4301 | ||
a8e41ef4 | 4302 | /* Convert what we have so far into UTF-8, telling the |
00f254e2 KW |
4303 | * function that we know it should be converted, and to |
4304 | * allow extra space for what we haven't processed yet. | |
2f8f985a KW |
4305 | * |
4306 | * This may cause the string pointer to move, so need to | |
4307 | * save and re-find it. */ | |
00f254e2 KW |
4308 | |
4309 | len = d - (U8*)SvPVX_const(dest); | |
4310 | SvCUR_set(dest, len); | |
4311 | len = sv_utf8_upgrade_flags_grow(dest, | |
4312 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
56e36cbf KW |
4313 | extra |
4314 | + 1 /* trailing NUL */ ); | |
00f254e2 KW |
4315 | d = (U8*)SvPVX(dest) + len; |
4316 | ||
a8e41ef4 | 4317 | /* Now process the remainder of the source, simultaneously |
be42d347 KW |
4318 | * converting to upper and UTF-8. |
4319 | * | |
4320 | * To avoid extra tests in the loop body, and since the | |
4321 | * loop is so simple, split out the rare Turkic case into | |
4322 | * its own loop */ | |
4323 | ||
4324 | #ifdef USE_LOCALE_CTYPE | |
4325 | if ( UNLIKELY(PL_in_utf8_turkic_locale) | |
4326 | && UNLIKELY(IN_LC_RUNTIME(LC_CTYPE))) | |
4327 | { | |
4328 | for (; s < send; s++) { | |
4329 | if (*s == 'i') { | |
4330 | *d++ = UTF8_TWO_BYTE_HI(LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE); | |
4331 | *d++ = UTF8_TWO_BYTE_LO(LATIN_CAPITAL_LETTER_I_WITH_DOT_ABOVE); | |
4332 | } | |
4333 | else { | |
4334 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); | |
4335 | d += len; | |
4336 | } | |
4337 | } | |
4338 | } | |
4339 | else | |
4340 | #endif | |
d813f430 KW |
4341 | for (; s < send; s++) { |
4342 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); | |
4343 | d += len; | |
4344 | } | |
4345 | ||
be42d347 KW |
4346 | /* Here have processed the whole source; no need to |
4347 | * continue with the outer loop. Each character has been | |
4348 | * converted to upper case and converted to UTF-8. */ | |
00f254e2 KW |
4349 | break; |
4350 | } /* End of processing all latin1-style chars */ | |
4351 | } /* End of processing all chars */ | |
4352 | } /* End of source is not empty */ | |
4353 | ||
67306194 | 4354 | if (source != dest) { |
00f254e2 | 4355 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
4356 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4357 | } | |
00f254e2 | 4358 | } /* End of isn't utf8 */ |
130c5df3 | 4359 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4360 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4361 | TAINT; |
4362 | SvTAINTED_on(dest); | |
4363 | } | |
130c5df3 | 4364 | #endif |
539689e7 FC |
4365 | if (dest != source && SvTAINTED(source)) |
4366 | SvTAINT(dest); | |
67306194 | 4367 | SvSETMAGIC(dest); |
3cb4e04f | 4368 | return NORMAL; |
79072805 LW |
4369 | } |
4370 | ||
4371 | PP(pp_lc) | |
4372 | { | |
39644a26 | 4373 | dSP; |
ec9af7d4 | 4374 | SV *source = TOPs; |
463ee0b2 | 4375 | STRLEN len; |
ec9af7d4 NC |
4376 | STRLEN min; |
4377 | SV *dest; | |
4378 | const U8 *s; | |
4379 | U8 *d; | |
be42d347 | 4380 | bool has_turkic_I = FALSE; |
79072805 | 4381 | |
ec9af7d4 NC |
4382 | SvGETMAGIC(source); |
4383 | ||
1921e031 | 4384 | if ( SvPADTMP(source) |
5cd5e2d6 | 4385 | && !SvREADONLY(source) && SvPOK(source) |
be42d347 KW |
4386 | && !DO_UTF8(source) |
4387 | ||
4388 | #ifdef USE_LOCALE_CTYPE | |
ec9af7d4 | 4389 | |
be42d347 KW |
4390 | && ( LIKELY(! IN_LC_RUNTIME(LC_CTYPE)) |
4391 | || LIKELY(! PL_in_utf8_turkic_locale)) | |
4392 | ||
4393 | #endif | |
4394 | ||
4395 | ) { | |
4396 | ||
4397 | /* We can convert in place, as, outside of Turkic UTF-8 locales, | |
4398 | * lowercasing anything in the latin1 range (or else DO_UTF8 would have | |
4399 | * been on) doesn't lengthen it. */ | |
ec9af7d4 NC |
4400 | dest = source; |
4401 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4402 | min = len + 1; | |
4403 | } else { | |
a0ed51b3 | 4404 | dTARGET; |
a0ed51b3 | 4405 | |
ec9af7d4 NC |
4406 | dest = TARG; |
4407 | ||
841a5e18 | 4408 | s = (const U8*)SvPV_nomg_const(source, len); |
ec9af7d4 | 4409 | min = len + 1; |
128c9517 | 4410 | |
ec9af7d4 | 4411 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 4412 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
4413 | (void)SvPOK_only(dest); |
4414 | ||
4415 | SETs(dest); | |
4416 | } | |
4417 | ||
8b7358b9 KW |
4418 | #ifdef USE_LOCALE_CTYPE |
4419 | ||
4420 | if (IN_LC_RUNTIME(LC_CTYPE)) { | |
be42d347 KW |
4421 | const U8 * next_I; |
4422 | ||
8b7358b9 | 4423 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; |
be42d347 KW |
4424 | |
4425 | /* Lowercasing in a Turkic locale can cause non-UTF-8 to need to become | |
4426 | * UTF-8 for the single case of the character 'I' */ | |
4427 | if ( UNLIKELY(PL_in_utf8_turkic_locale) | |
4428 | && ! DO_UTF8(source) | |
4429 | && (next_I = (U8 *) memchr(s, 'I', len))) | |
4430 | { | |
4431 | Size_t I_count = 0; | |
4432 | const U8 *const send = s + len; | |
4433 | ||
4434 | do { | |
4435 | I_count++; | |
4436 | ||
4437 | next_I = (U8 *) memchr(next_I + 1, 'I', | |
4438 | send - (next_I + 1)); | |
4439 | } while (next_I != NULL); | |
4440 | ||
4441 | /* Except for the 'I', in UTF-8 strings, the lower case of a | |
4442 | * character below 256 occupies the same number of bytes as the | |
4443 | * original. Therefore, the space needed is the original length | |
4444 | * plus I_count plus the number of characters that become two bytes | |
4445 | * when converted to UTF-8 */ | |
4446 | sv_utf8_upgrade_flags_grow(dest, 0, len | |
4447 | + I_count | |
56e36cbf KW |
4448 | + variant_under_utf8_count(s, send) |
4449 | + 1 /* Trailing NUL */ ); | |
be42d347 KW |
4450 | d = (U8*)SvPVX(dest); |
4451 | has_turkic_I = TRUE; | |
4452 | } | |
8b7358b9 KW |
4453 | } |
4454 | ||
4455 | #endif | |
4456 | ||
ec9af7d4 NC |
4457 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
4458 | to check DO_UTF8 again here. */ | |
4459 | ||
4460 | if (DO_UTF8(source)) { | |
4461 | const U8 *const send = s + len; | |
4462 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
be42d347 | 4463 | bool remove_dot_above = FALSE; |
ec9af7d4 NC |
4464 | |
4465 | while (s < send) { | |
06b5486a KW |
4466 | const STRLEN u = UTF8SKIP(s); |
4467 | STRLEN ulen; | |
00f254e2 | 4468 | |
130c5df3 | 4469 | #ifdef USE_LOCALE_CTYPE |
a8e41ef4 | 4470 | |
a1a5ec35 | 4471 | _toLOWER_utf8_flags(s, send, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
be42d347 KW |
4472 | |
4473 | /* If we are in a Turkic locale, we have to do more work. As noted | |
4474 | * in the comments for lcfirst, there is a special case if a 'I' | |
4475 | * is in a grapheme with COMBINING DOT ABOVE UTF8. It turns into a | |
4476 | * 'i', and the DOT must be removed. We check for that situation, | |
4477 | * and set a flag if the DOT is there. Then each time through the | |
4478 | * loop, we have to see if we need to remove the next DOT above, | |
4479 | * and if so, do it. We know that there is a DOT because | |
4480 | * _toLOWER_utf8_flags() wouldn't have returned 'i' unless there | |
4481 | * was one in a proper position. */ | |
4482 | if ( UNLIKELY(PL_in_utf8_turkic_locale) | |
4483 | && IN_LC_RUNTIME(LC_CTYPE)) | |
4484 | { | |
4485 | if ( UNLIKELY(remove_dot_above) | |
4486 | && memBEGINs(tmpbuf, sizeof(tmpbuf), COMBINING_DOT_ABOVE_UTF8)) | |
4487 | { | |
4488 | s += u; | |
4489 | remove_dot_above = FALSE; | |
4490 | continue; | |
4491 | } | |
4492 | else if (UNLIKELY(*s == 'I' && tmpbuf[0] == 'i')) { | |
4493 | remove_dot_above = TRUE; | |
4494 | } | |
4495 | } | |
130c5df3 | 4496 | #else |
be42d347 KW |
4497 | PERL_UNUSED_VAR(remove_dot_above); |
4498 | ||
a1a5ec35 | 4499 | _toLOWER_utf8_flags(s, send, tmpbuf, &ulen, 0); |
130c5df3 | 4500 | #endif |
00f254e2 | 4501 | |
a8e41ef4 KW |
4502 | /* Here is where we would do context-sensitive actions for the |
4503 | * Greek final sigma. See the commit message for 86510fb15 for why | |
4504 | * there isn't any */ | |
00f254e2 | 4505 | |
06b5486a | 4506 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 4507 | |
06b5486a KW |
4508 | /* If the eventually required minimum size outgrows the |
4509 | * available space, we need to grow. */ | |
4510 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 4511 | |
06b5486a KW |
4512 | /* If someone lowercases one million U+0130s we SvGROW() one |
4513 | * million times. Or we could try guessing how much to | |
4514 | * allocate without allocating too much. Such is life. | |
4515 | * Another option would be to grow an extra byte or two more | |
4516 | * each time we need to grow, which would cut down the million | |
4517 | * to 500K, with little waste */ | |
10656159 | 4518 | d = o + (U8*) SvGROW(dest, min); |
06b5486a | 4519 | } |
86510fb1 | 4520 | |
06b5486a KW |
4521 | /* Copy the newly lowercased letter to the output buffer we're |
4522 | * building */ | |
4523 | Copy(tmpbuf, d, ulen, U8); | |
4524 | d += ulen; | |
4525 | s += u; | |
00f254e2 | 4526 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4527 | SvUTF8_on(dest); |
4528 | *d = '\0'; | |
4529 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
d595c8d9 | 4530 | } else { /* 'source' not utf8 */ |
31351b04 | 4531 | if (len) { |
ec9af7d4 | 4532 | const U8 *const send = s + len; |
00f254e2 KW |
4533 | |
4534 | /* Use locale casing if in locale; regular style if not treating | |
4535 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4536 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4537 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4538 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
be42d347 KW |
4539 | if (LIKELY( ! has_turkic_I)) { |
4540 | for (; s < send; d++, s++) | |
4541 | *d = toLOWER_LC(*s); | |
4542 | } | |
4543 | else { /* This is the only case where lc() converts 'dest' | |
4544 | into UTF-8 from a non-UTF-8 'source' */ | |
4545 | for (; s < send; s++) { | |
4546 | if (*s == 'I') { | |
4547 | *d++ = UTF8_TWO_BYTE_HI(LATIN_SMALL_LETTER_DOTLESS_I); | |
4548 | *d++ = UTF8_TWO_BYTE_LO(LATIN_SMALL_LETTER_DOTLESS_I); | |
4549 | } | |
4550 | else { | |
4551 | append_utf8_from_native_byte(toLOWER_LATIN1(*s), &d); | |
4552 | } | |
4553 | } | |
4554 | } | |
445bf929 | 4555 | } |
130c5df3 KW |
4556 | else |
4557 | #endif | |
4558 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4559 | for (; s < send; d++, s++) { |
ec9af7d4 | 4560 | *d = toLOWER(*s); |
00f254e2 KW |
4561 | } |
4562 | } | |
4563 | else { | |
4564 | for (; s < send; d++, s++) { | |
4565 | *d = toLOWER_LATIN1(*s); | |
4566 | } | |
31351b04 | 4567 | } |
bbce6d69 | 4568 | } |
ec9af7d4 NC |
4569 | if (source != dest) { |
4570 | *d = '\0'; | |
4571 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4572 | } | |
79072805 | 4573 | } |
130c5df3 | 4574 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4575 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4576 | TAINT; |
4577 | SvTAINTED_on(dest); | |
4578 | } | |
130c5df3 | 4579 | #endif |
539689e7 FC |
4580 | if (dest != source && SvTAINTED(source)) |
4581 | SvTAINT(dest); | |
ec9af7d4 | 4582 | SvSETMAGIC(dest); |
3cb4e04f | 4583 | return NORMAL; |
79072805 LW |
4584 | } |
4585 | ||
a0d0e21e | 4586 | PP(pp_quotemeta) |
79072805 | 4587 | { |
20b7effb | 4588 | dSP; dTARGET; |
1b6737cc | 4589 | SV * const sv = TOPs; |
a0d0e21e | 4590 | STRLEN len; |
eb578fdb | 4591 | const char *s = SvPV_const(sv,len); |
79072805 | 4592 | |
7e2040f0 | 4593 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4594 | if (len) { |
eb578fdb | 4595 | char *d; |
862a34c6 | 4596 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4597 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4598 | d = SvPVX(TARG); |
7e2040f0 | 4599 | if (DO_UTF8(sv)) { |
0dd2cdef | 4600 | while (len) { |
29050de5 | 4601 | STRLEN ulen = UTF8SKIP(s); |
2e2b2571 KW |
4602 | bool to_quote = FALSE; |
4603 | ||
4604 | if (UTF8_IS_INVARIANT(*s)) { | |
4605 | if (_isQUOTEMETA(*s)) { | |
4606 | to_quote = TRUE; | |
4607 | } | |
4608 | } | |
042d9e50 | 4609 | else if (UTF8_IS_NEXT_CHAR_DOWNGRADEABLE(s, s + len)) { |
3fea7d29 | 4610 | if ( |
130c5df3 | 4611 | #ifdef USE_LOCALE_CTYPE |
20adcf7c KW |
4612 | /* In locale, we quote all non-ASCII Latin1 chars. |
4613 | * Otherwise use the quoting rules */ | |
a8e41ef4 | 4614 | |
3fea7d29 BF |
4615 | IN_LC_RUNTIME(LC_CTYPE) |
4616 | || | |
4617 | #endif | |
a62b247b | 4618 | _isQUOTEMETA(EIGHT_BIT_UTF8_TO_NATIVE(*s, *(s + 1)))) |
2e2b2571 KW |
4619 | { |
4620 | to_quote = TRUE; | |
4621 | } | |
4622 | } | |
685289b5 | 4623 | else if (is_QUOTEMETA_high(s)) { |
2e2b2571 KW |
4624 | to_quote = TRUE; |
4625 | } | |
4626 | ||
4627 | if (to_quote) { | |
4628 | *d++ = '\\'; | |
4629 | } | |
29050de5 KW |
4630 | if (ulen > len) |
4631 | ulen = len; | |
4632 | len -= ulen; | |
4633 | while (ulen--) | |
4634 | *d++ = *s++; | |
0dd2cdef | 4635 | } |
7e2040f0 | 4636 | SvUTF8_on(TARG); |
0dd2cdef | 4637 | } |
2e2b2571 KW |
4638 | else if (IN_UNI_8_BIT) { |
4639 | while (len--) { | |
4640 | if (_isQUOTEMETA(*s)) | |
4641 | *d++ = '\\'; | |
4642 | *d++ = *s++; | |
4643 | } | |
4644 | } | |
0dd2cdef | 4645 | else { |
2e2b2571 KW |
4646 | /* For non UNI_8_BIT (and hence in locale) just quote all \W |
4647 | * including everything above ASCII */ | |
0dd2cdef | 4648 | while (len--) { |
adfec831 | 4649 | if (!isWORDCHAR_A(*s)) |
0dd2cdef LW |
4650 | *d++ = '\\'; |
4651 | *d++ = *s++; | |
4652 | } | |
79072805 | 4653 | } |
a0d0e21e | 4654 | *d = '\0'; |
349d4f2f | 4655 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4656 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4657 | } |
a0d0e21e LW |
4658 | else |
4659 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4660 | SETTARG; |
cfe40115 | 4661 | return NORMAL; |
79072805 LW |
4662 | } |
4663 | ||
838f2281 BF |
4664 | PP(pp_fc) |
4665 | { | |
838f2281 BF |
4666 | dTARGET; |
4667 | dSP; | |
4668 | SV *source = TOPs; | |
4669 | STRLEN len; | |
4670 | STRLEN min; | |
4671 | SV *dest; | |
4672 | const U8 *s; | |
4673 | const U8 *send; | |
4674 | U8 *d; | |
bfac13d4 | 4675 | U8 tmpbuf[UTF8_MAXBYTES_CASE + 1]; |
9b63e895 KW |
4676 | #if UNICODE_MAJOR_VERSION > 3 /* no multifolds in early Unicode */ \ |
4677 | || (UNICODE_MAJOR_VERSION == 3 && ( UNICODE_DOT_VERSION > 0) \ | |
4678 | || UNICODE_DOT_DOT_VERSION > 0) | |
a4b69695 KW |
4679 | const bool full_folding = TRUE; /* This variable is here so we can easily |
4680 | move to more generality later */ | |
9b63e895 KW |
4681 | #else |
4682 | const bool full_folding = FALSE; | |
4683 | #endif | |
838f2281 | 4684 | const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 ) |
130c5df3 KW |
4685 | #ifdef USE_LOCALE_CTYPE |
4686 | | ( IN_LC_RUNTIME(LC_CTYPE) ? FOLD_FLAGS_LOCALE : 0 ) | |
4687 | #endif | |
4688 | ; | |
838f2281 BF |
4689 | |
4690 | /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me. | |
4691 | * You are welcome(?) -Hugmeir | |
4692 | */ | |
4693 | ||
4694 | SvGETMAGIC(source); | |
4695 | ||
4696 | dest = TARG; | |
4697 | ||
4698 | if (SvOK(source)) { | |
4699 | s = (const U8*)SvPV_nomg_const(source, len); | |
4700 | } else { | |
4701 | if (ckWARN(WARN_UNINITIALIZED)) | |
4702 | report_uninit(source); | |
4703 | s = (const U8*)""; | |
4704 | len = 0; | |
4705 | } | |
4706 | ||
4707 | min = len + 1; | |
4708 | ||
4709 | SvUPGRADE(dest, SVt_PV); | |
4710 | d = (U8*)SvGROW(dest, min); | |
4711 | (void)SvPOK_only(dest); | |
4712 | ||
4713 | SETs(dest); | |
4714 | ||
4715 | send = s + len; | |
8b7358b9 KW |
4716 | |
4717 | #ifdef USE_LOCALE_CTYPE | |
4718 | ||
4719 | if ( IN_LC_RUNTIME(LC_CTYPE) ) { /* Under locale */ | |
4720 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
4721 | } | |
4722 | ||
4723 | #endif | |
4724 | ||
838f2281 | 4725 | if (DO_UTF8(source)) { /* UTF-8 flagged string. */ |
838f2281 BF |
4726 | while (s < send) { |
4727 | const STRLEN u = UTF8SKIP(s); | |
4728 | STRLEN ulen; | |
4729 | ||
a1a5ec35 | 4730 | _toFOLD_utf8_flags(s, send, tmpbuf, &ulen, flags); |
838f2281 BF |
4731 | |
4732 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4733 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4734 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4735 | } |
4736 | ||
4737 | Copy(tmpbuf, d, ulen, U8); | |
4738 | d += ulen; | |
4739 | s += u; | |
4740 | } | |
4741 | SvUTF8_on(dest); | |
838f2281 | 4742 | } /* Unflagged string */ |
0902dd32 | 4743 | else if (len) { |
130c5df3 | 4744 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4745 | if ( IN_LC_RUNTIME(LC_CTYPE) ) { /* Under locale */ |
31f05a37 KW |
4746 | if (IN_UTF8_CTYPE_LOCALE) { |
4747 | goto do_uni_folding; | |
4748 | } | |
838f2281 | 4749 | for (; s < send; d++, s++) |
ea36a843 | 4750 | *d = (U8) toFOLD_LC(*s); |
838f2281 | 4751 | } |
130c5df3 KW |
4752 | else |
4753 | #endif | |
4754 | if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */ | |
838f2281 | 4755 | for (; s < send; d++, s++) |
d22b930b | 4756 | *d = toFOLD(*s); |
838f2281 BF |
4757 | } |
4758 | else { | |
91191cf7 | 4759 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4760 | do_uni_folding: |
91191cf7 | 4761 | #endif |
be42d347 | 4762 | /* For ASCII and the Latin-1 range, there's potentially three |
a8e41ef4 KW |
4763 | * troublesome folds: |
4764 | * \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full | |
4765 | * casefolding becomes 'ss'; | |
4766 | * \x{B5} (\N{MICRO SIGN}), which under any fold becomes | |
4767 | * \x{3BC} (\N{GREEK SMALL LETTER MU}) | |
be42d347 KW |
4768 | * I only in Turkic locales, this folds to \x{131} |
4769 | * \N{LATIN SMALL LETTER DOTLESS I} | |
d14578b8 | 4770 | * For the rest, the casefold is their lowercase. */ |
838f2281 | 4771 | for (; s < send; d++, s++) { |
be42d347 KW |
4772 | if ( UNLIKELY(*s == MICRO_SIGN) |
4773 | #ifdef USE_LOCALE_CTYPE | |
4774 | || ( UNLIKELY(PL_in_utf8_turkic_locale) | |
4775 | && UNLIKELY(IN_LC_RUNTIME(LC_CTYPE)) | |
4776 | && UNLIKELY(*s == 'I')) | |
4777 | #endif | |
4778 | ) { | |
2f8f985a KW |
4779 | Size_t extra = send - s |
4780 | + variant_under_utf8_count(s, send); | |
4781 | ||
d14578b8 | 4782 | /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, |
be42d347 KW |
4783 | * and 'I' in Turkic locales is \N{LATIN SMALL LETTER |
4784 | * DOTLESS I} both of which are outside of the latin-1 | |
4785 | * range. There's a couple of ways to deal with this -- khw | |
4786 | * discusses them in pp_lc/uc, so go there :) What we do | |
4787 | * here is upgrade what we had already casefolded, then | |
4788 | * enter an inner loop that appends the rest of the | |
4789 | * characters as UTF-8. | |
2f8f985a KW |
4790 | * |
4791 | * First we calculate the needed size of the upgraded dest | |
4792 | * beyond what's been processed already (the upgrade | |
be42d347 KW |
4793 | * function figures that out). Except for the 'I' in |
4794 | * Turkic locales, in UTF-8 strings, the fold case of a | |
2f8f985a KW |
4795 | * character below 256 occupies the same number of bytes as |
4796 | * the original (even the Sharp S). Therefore, the space | |
4797 | * needed is the number of bytes remaining plus the number | |
4798 | * of characters that become two bytes when converted to | |
be42d347 KW |
4799 | * UTF-8 plus, in turkish locales, the number of 'I's */ |
4800 | ||
4801 | if (UNLIKELY(*s == 'I')) { | |
4802 | const U8 * s_peek = s; | |
4803 | ||
4804 | do { | |
4805 | extra++; | |
4806 | ||
4807 | s_peek = (U8 *) memchr(s_peek + 1, 'i', | |
4808 | send - (s_peek + 1)); | |
4809 | } while (s_peek != NULL); | |
4810 | } | |
2f8f985a KW |
4811 | |
4812 | /* Growing may move things, so have to save and recalculate | |
4813 | * 'd' */ | |
838f2281 BF |
4814 | len = d - (U8*)SvPVX_const(dest); |
4815 | SvCUR_set(dest, len); | |
4816 | len = sv_utf8_upgrade_flags_grow(dest, | |
4817 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
56e36cbf KW |
4818 | extra |
4819 | + 1 /* Trailing NUL */ ); | |
838f2281 BF |
4820 | d = (U8*)SvPVX(dest) + len; |
4821 | ||
93327b75 KW |
4822 | *d++ = UTF8_TWO_BYTE_HI(GREEK_SMALL_LETTER_MU); |
4823 | *d++ = UTF8_TWO_BYTE_LO(GREEK_SMALL_LETTER_MU); | |
838f2281 | 4824 | s++; |
a8e41ef4 | 4825 | |
838f2281 BF |
4826 | for (; s < send; s++) { |
4827 | STRLEN ulen; | |
526f8cbf KW |
4828 | _to_uni_fold_flags(*s, d, &ulen, flags); |
4829 | d += ulen; | |
838f2281 BF |
4830 | } |
4831 | break; | |
4832 | } | |
ca62a7c2 KW |
4833 | else if ( UNLIKELY(*s == LATIN_SMALL_LETTER_SHARP_S) |
4834 | && full_folding) | |
4835 | { | |
d14578b8 KW |
4836 | /* Under full casefolding, LATIN SMALL LETTER SHARP S |
4837 | * becomes "ss", which may require growing the SV. */ | |
838f2281 BF |
4838 | if (SvLEN(dest) < ++min) { |
4839 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4840 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4841 | } |
4842 | *(d)++ = 's'; | |
4843 | *d = 's'; | |
4844 | } | |
a8e41ef4 | 4845 | else { /* Else, the fold is the lower case */ |
838f2281 BF |
4846 | *d = toLOWER_LATIN1(*s); |
4847 | } | |
4848 | } | |
4849 | } | |
4850 | } | |
4851 | *d = '\0'; | |
4852 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4853 | ||
130c5df3 | 4854 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4855 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4856 | TAINT; |
4857 | SvTAINTED_on(dest); | |
4858 | } | |
130c5df3 | 4859 | #endif |
838f2281 BF |
4860 | if (SvTAINTED(source)) |
4861 | SvTAINT(dest); | |
4862 | SvSETMAGIC(dest); | |
4863 | RETURN; | |
4864 | } | |
4865 | ||
a0d0e21e | 4866 | /* Arrays. */ |
79072805 | 4867 | |
a0d0e21e | 4868 | PP(pp_aslice) |
79072805 | 4869 | { |
20b7effb | 4870 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4871 | AV *const av = MUTABLE_AV(POPs); |
4872 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 4873 | |
a0d0e21e | 4874 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4875 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4876 | bool can_preserve = FALSE; | |
4877 | ||
4878 | if (localizing) { | |
4879 | MAGIC *mg; | |
4880 | HV *stash; | |
4881 | ||
4882 | can_preserve = SvCANEXISTDELETE(av); | |
4883 | } | |
4884 | ||
4885 | if (lval && localizing) { | |
eb578fdb | 4886 | SV **svp; |
c70927a6 | 4887 | SSize_t max = -1; |
924508f0 | 4888 | for (svp = MARK + 1; svp <= SP; svp++) { |
c70927a6 | 4889 | const SSize_t elem = SvIV(*svp); |
748a9306 LW |
4890 | if (elem > max) |
4891 | max = elem; | |
4892 | } | |
4893 | if (max > AvMAX(av)) | |
4894 | av_extend(av, max); | |
4895 | } | |
4ad10a0b | 4896 | |
a0d0e21e | 4897 | while (++MARK <= SP) { |
eb578fdb | 4898 | SV **svp; |
c70927a6 | 4899 | SSize_t elem = SvIV(*MARK); |
4ad10a0b | 4900 | bool preeminent = TRUE; |
a0d0e21e | 4901 | |
4ad10a0b VP |
4902 | if (localizing && can_preserve) { |
4903 | /* If we can determine whether the element exist, | |
4904 | * Try to preserve the existenceness of a tied array | |
4905 | * element by using EXISTS and DELETE if possible. | |
4906 | * Fallback to FETCH and STORE otherwise. */ | |
4907 | preeminent = av_exists(av, elem); | |
4908 | } | |
4909 | ||
a0d0e21e LW |
4910 | svp = av_fetch(av, elem, lval); |
4911 | if (lval) { | |
ce0d59fd | 4912 | if (!svp || !*svp) |
cea2e8a9 | 4913 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4914 | if (localizing) { |
4915 | if (preeminent) | |
4916 | save_aelem(av, elem, svp); | |
4917 | else | |
4918 | SAVEADELETE(av, elem); | |
4919 | } | |
79072805 | 4920 | } |
3280af22 | 4921 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4922 | } |
4923 | } | |
82334630 | 4924 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 4925 | MARK = ORIGMARK; |
04ab2c87 | 4926 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4927 | SP = MARK; |
4928 | } | |
79072805 LW |
4929 | RETURN; |
4930 | } | |
4931 | ||
6dd3e0f2 RZ |
4932 | PP(pp_kvaslice) |
4933 | { | |
20b7effb | 4934 | dSP; dMARK; |
6dd3e0f2 RZ |
4935 | AV *const av = MUTABLE_AV(POPs); |
4936 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 4937 | SSize_t items = SP - MARK; |
6dd3e0f2 RZ |
4938 | |
4939 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
4940 | const I32 flags = is_lvalue_sub(); | |
4941 | if (flags) { | |
4942 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 4943 | /* diag_listed_as: Can't modify %s in %s */ |
6dd3e0f2 RZ |
4944 | Perl_croak(aTHX_ "Can't modify index/value array slice in list assignment"); |
4945 | lval = flags; | |
4946 | } | |
4947 | } | |
4948 | ||
4949 | MEXTEND(SP,items); | |
4950 | while (items > 1) { | |
4951 | *(MARK+items*2-1) = *(MARK+items); | |
4952 | items--; | |
4953 | } | |
4954 | items = SP-MARK; | |
4955 | SP += items; | |
4956 | ||
4957 | while (++MARK <= SP) { | |
4958 | SV **svp; | |
4959 | ||
4960 | svp = av_fetch(av, SvIV(*MARK), lval); | |
4961 | if (lval) { | |
4962 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
4963 | DIE(aTHX_ PL_no_aelem, SvIV(*MARK)); | |
4964 | } | |
4965 | *MARK = sv_mortalcopy(*MARK); | |
4966 | } | |
4967 | *++MARK = svp ? *svp : &PL_sv_undef; | |
4968 | } | |
82334630 | 4969 | if (GIMME_V != G_ARRAY) { |
6dd3e0f2 RZ |
4970 | MARK = SP - items*2; |
4971 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
4972 | SP = MARK; | |
4973 | } | |
4974 | RETURN; | |
4975 | } | |
4976 | ||
b1c05ba5 | 4977 | |
878d132a NC |
4978 | PP(pp_aeach) |
4979 | { | |
878d132a | 4980 | dSP; |
502c6561 | 4981 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 4982 | const U8 gimme = GIMME_V; |
453d94a9 | 4983 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4984 | const IV current = (*iterp)++; |
4985 | ||
b9f2b683 | 4986 | if (current > av_tindex(array)) { |
878d132a NC |
4987 | *iterp = 0; |
4988 | if (gimme == G_SCALAR) | |
4989 | RETPUSHUNDEF; | |
4990 | else | |
4991 | RETURN; | |
4992 | } | |
4993 | ||
4994 | EXTEND(SP, 2); | |
e1dccc0d | 4995 | mPUSHi(current); |
878d132a NC |
4996 | if (gimme == G_ARRAY) { |
4997 | SV **const element = av_fetch(array, current, 0); | |
4998 | PUSHs(element ? *element : &PL_sv_undef); | |
4999 | } | |
5000 | RETURN; | |
5001 | } | |
5002 | ||
b1c05ba5 | 5003 | /* also used for: pp_avalues()*/ |
878d132a NC |
5004 | PP(pp_akeys) |
5005 | { | |
878d132a | 5006 | dSP; |
502c6561 | 5007 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 5008 | const U8 gimme = GIMME_V; |
878d132a NC |
5009 | |
5010 | *Perl_av_iter_p(aTHX_ array) = 0; | |
5011 | ||
5012 | if (gimme == G_SCALAR) { | |
5013 | dTARGET; | |
b9f2b683 | 5014 | PUSHi(av_tindex(array) + 1); |
878d132a NC |
5015 | } |
5016 | else if (gimme == G_ARRAY) { | |
738155d2 FC |
5017 | if (UNLIKELY(PL_op->op_private & OPpMAYBE_LVSUB)) { |
5018 | const I32 flags = is_lvalue_sub(); | |
5019 | if (flags && !(flags & OPpENTERSUB_INARGS)) | |
5020 | /* diag_listed_as: Can't modify %s in %s */ | |
5021 | Perl_croak(aTHX_ | |
5022 | "Can't modify keys on array in list assignment"); | |
5023 | } | |
5024 | { | |
878d132a | 5025 | IV n = Perl_av_len(aTHX_ array); |
e1dccc0d | 5026 | IV i; |
878d132a NC |
5027 | |
5028 | EXTEND(SP, n + 1); | |
5029 | ||
73665bc4 FC |
5030 | if ( PL_op->op_type == OP_AKEYS |
5031 | || ( PL_op->op_type == OP_AVHVSWITCH | |
cd642408 | 5032 | && (PL_op->op_private & 3) + OP_AEACH == OP_AKEYS )) |
73665bc4 | 5033 | { |
e1dccc0d | 5034 | for (i = 0; i <= n; i++) { |
878d132a NC |
5035 | mPUSHi(i); |
5036 | } | |
5037 | } | |
5038 | else { | |
5039 | for (i = 0; i <= n; i++) { | |
5040 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
5041 | PUSHs(elem ? *elem : &PL_sv_undef); | |
5042 | } | |
5043 | } | |
738155d2 | 5044 | } |
878d132a NC |
5045 | } |
5046 | RETURN; | |
5047 | } | |
5048 | ||
79072805 LW |
5049 | /* Associative arrays. */ |
5050 | ||
5051 | PP(pp_each) | |
5052 | { | |
39644a26 | 5053 | dSP; |
85fbaab2 | 5054 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 5055 | HE *entry; |
1c23e2bd | 5056 | const U8 gimme = GIMME_V; |
8ec5e241 | 5057 | |
6d822dc4 | 5058 | entry = hv_iternext(hash); |
79072805 | 5059 | |
79072805 LW |
5060 | EXTEND(SP, 2); |
5061 | if (entry) { | |
1b6737cc | 5062 | SV* const sv = hv_iterkeysv(entry); |
2b32fed8 | 5063 | PUSHs(sv); |
54310121 | 5064 | if (gimme == G_ARRAY) { |
59af0135 | 5065 | SV *val; |
6d822dc4 | 5066 | val = hv_iterval(hash, entry); |
59af0135 | 5067 | PUSHs(val); |
79072805 | 5068 | } |
79072805 | 5069 | } |
54310121 | 5070 | else if (gimme == G_SCALAR) |
79072805 LW |
5071 | RETPUSHUNDEF; |
5072 | ||
5073 | RETURN; | |
5074 | } | |
5075 | ||
7332a6c4 VP |
5076 | STATIC OP * |
5077 | S_do_delete_local(pTHX) | |
79072805 | 5078 | { |
39644a26 | 5079 | dSP; |
1c23e2bd | 5080 | const U8 gimme = GIMME_V; |
7332a6c4 VP |
5081 | const MAGIC *mg; |
5082 | HV *stash; | |
ca3f996a | 5083 | const bool sliced = !!(PL_op->op_private & OPpSLICE); |
626040f7 | 5084 | SV **unsliced_keysv = sliced ? NULL : sp--; |
ca3f996a | 5085 | SV * const osv = POPs; |
626040f7 | 5086 | SV **mark = sliced ? PL_stack_base + POPMARK : unsliced_keysv-1; |
ca3f996a FC |
5087 | dORIGMARK; |
5088 | const bool tied = SvRMAGICAL(osv) | |
7332a6c4 | 5089 | && mg_find((const SV *)osv, PERL_MAGIC_tied); |
ca3f996a FC |
5090 | const bool can_preserve = SvCANEXISTDELETE(osv); |
5091 | const U32 type = SvTYPE(osv); | |
626040f7 | 5092 | SV ** const end = sliced ? SP : unsliced_keysv; |
ca3f996a FC |
5093 | |
5094 | if (type == SVt_PVHV) { /* hash element */ | |
7332a6c4 | 5095 | HV * const hv = MUTABLE_HV(osv); |
ca3f996a | 5096 | while (++MARK <= end) { |
7332a6c4 VP |
5097 | SV * const keysv = *MARK; |
5098 | SV *sv = NULL; | |
5099 | bool preeminent = TRUE; | |
5100 | if (can_preserve) | |
5101 | preeminent = hv_exists_ent(hv, keysv, 0); | |
5102 | if (tied) { | |
5103 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
5104 | if (he) | |
5105 | sv = HeVAL(he); | |
5106 | else | |
5107 | preeminent = FALSE; | |
5108 | } | |
5109 | else { | |
5110 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
9332b95f FC |
5111 | if (preeminent) |
5112 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
5113 | } |
5114 | if (preeminent) { | |
be6064fd | 5115 | if (!sv) DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
7332a6c4 VP |
5116 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); |
5117 | if (tied) { | |
5118 | *MARK = sv_mortalcopy(sv); | |
5119 | mg_clear(sv); | |
5120 | } else | |
5121 | *MARK = sv; | |
5122 | } | |
5123 | else { | |
5124 | SAVEHDELETE(hv, keysv); | |
5125 | *MARK = &PL_sv_undef; | |
5126 | } | |
5127 | } | |
ca3f996a FC |
5128 | } |
5129 | else if (type == SVt_PVAV) { /* array element */ | |
7332a6c4 VP |
5130 | if (PL_op->op_flags & OPf_SPECIAL) { |
5131 | AV * const av = MUTABLE_AV(osv); | |
ca3f996a | 5132 | while (++MARK <= end) { |
c70927a6 | 5133 | SSize_t idx = SvIV(*MARK); |
7332a6c4 VP |
5134 | SV *sv = NULL; |
5135 | bool preeminent = TRUE; | |
5136 | if (can_preserve) | |
5137 | preeminent = av_exists(av, idx); | |
5138 | if (tied) { | |
5139 | SV **svp = av_fetch(av, idx, 1); | |
5140 | if (svp) | |
5141 | sv = *svp; | |
5142 | else | |
5143 | preeminent = FALSE; | |
5144 | } | |
5145 | else { | |
5146 | sv = av_delete(av, idx, 0); | |
9332b95f FC |
5147 | if (preeminent) |
5148 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
5149 | } |
5150 | if (preeminent) { | |
5151 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
5152 | if (tied) { | |
5153 | *MARK = sv_mortalcopy(sv); | |
5154 | mg_clear(sv); | |
5155 | } else | |
5156 | *MARK = sv; | |
5157 | } | |
5158 | else { | |
5159 | SAVEADELETE(av, idx); | |
5160 | *MARK = &PL_sv_undef; | |
5161 | } | |
5162 | } | |
5163 | } | |
ca3f996a FC |
5164 | else |
5165 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
5166 | } | |
5167 | else | |
7332a6c4 | 5168 | DIE(aTHX_ "Not a HASH reference"); |
ca3f996a | 5169 | if (sliced) { |
7332a6c4 VP |
5170 | if (gimme == G_VOID) |
5171 | SP = ORIGMARK; | |
5172 | else if (gimme == G_SCALAR) { | |
5173 | MARK = ORIGMARK; | |
5174 | if (SP > MARK) | |
5175 | *++MARK = *SP; | |
5176 | else | |
5177 | *++MARK = &PL_sv_undef; | |
5178 | SP = MARK; | |
5179 | } | |
5180 | } | |
ca3f996a | 5181 | else if (gimme != G_VOID) |
626040f7 | 5182 | PUSHs(*unsliced_keysv); |
7332a6c4 VP |
5183 | |
5184 | RETURN; | |
5185 | } | |
5186 | ||
5187 | PP(pp_delete) | |
5188 | { | |
7332a6c4 | 5189 | dSP; |
1c23e2bd | 5190 | U8 gimme; |
7332a6c4 VP |
5191 | I32 discard; |
5192 | ||
5193 | if (PL_op->op_private & OPpLVAL_INTRO) | |
5194 | return do_delete_local(); | |
5195 | ||
5196 | gimme = GIMME_V; | |
5197 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 5198 | |
cc0776d6 | 5199 | if (PL_op->op_private & (OPpSLICE|OPpKVSLICE)) { |
5f05dabc | 5200 | dMARK; dORIGMARK; |
85fbaab2 | 5201 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 5202 | const U32 hvtype = SvTYPE(hv); |
cc0776d6 DIM |
5203 | int skip = 0; |
5204 | if (PL_op->op_private & OPpKVSLICE) { | |
5205 | SSize_t items = SP - MARK; | |
5206 | ||
5207 | MEXTEND(SP,items); | |
5208 | while (items > 1) { | |
5209 | *(MARK+items*2-1) = *(MARK+items); | |
5210 | items--; | |
5211 | } | |
5212 | items = SP - MARK; | |
5213 | SP += items; | |
5214 | skip = 1; | |
5215 | } | |
01020589 | 5216 | if (hvtype == SVt_PVHV) { /* hash element */ |
cc0776d6 DIM |
5217 | while ((MARK += (1+skip)) <= SP) { |
5218 | SV * const sv = hv_delete_ent(hv, *(MARK-skip), discard, 0); | |
01020589 GS |
5219 | *MARK = sv ? sv : &PL_sv_undef; |
5220 | } | |
5f05dabc | 5221 | } |
6d822dc4 MS |
5222 | else if (hvtype == SVt_PVAV) { /* array element */ |
5223 | if (PL_op->op_flags & OPf_SPECIAL) { | |
cc0776d6 DIM |
5224 | while ((MARK += (1+skip)) <= SP) { |
5225 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*(MARK-skip)), discard); | |
6d822dc4 MS |
5226 | *MARK = sv ? sv : &PL_sv_undef; |
5227 | } | |
5228 | } | |
01020589 GS |
5229 | } |
5230 | else | |
5231 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 5232 | if (discard) |
5233 | SP = ORIGMARK; | |
5234 | else if (gimme == G_SCALAR) { | |
5f05dabc | 5235 | MARK = ORIGMARK; |
9111c9c0 DM |
5236 | if (SP > MARK) |
5237 | *++MARK = *SP; | |
5238 | else | |
5239 | *++MARK = &PL_sv_undef; | |
5f05dabc | 5240 | SP = MARK; |
5241 | } | |
5242 | } | |
5243 | else { | |
5244 | SV *keysv = POPs; | |
85fbaab2 | 5245 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 5246 | SV *sv = NULL; |
97fcbf96 MB |
5247 | if (SvTYPE(hv) == SVt_PVHV) |
5248 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
5249 | else if (SvTYPE(hv) == SVt_PVAV) { |
5250 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 5251 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
5252 | else |
5253 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 5254 | } |
97fcbf96 | 5255 | else |
cea2e8a9 | 5256 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 5257 | if (!sv) |
3280af22 | 5258 | sv = &PL_sv_undef; |
54310121 | 5259 | if (!discard) |
5260 | PUSHs(sv); | |
79072805 | 5261 | } |
79072805 LW |
5262 | RETURN; |
5263 | } | |
5264 | ||
a0d0e21e | 5265 | PP(pp_exists) |
79072805 | 5266 | { |
39644a26 | 5267 | dSP; |
afebc493 GS |
5268 | SV *tmpsv; |
5269 | HV *hv; | |
5270 | ||
c7e88ff3 | 5271 | if (UNLIKELY( PL_op->op_private & OPpEXISTS_SUB )) { |
afebc493 | 5272 | GV *gv; |
0bd48802 | 5273 | SV * const sv = POPs; |
f2c0649b | 5274 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
5275 | if (cv) |
5276 | RETPUSHYES; | |
5277 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
5278 | RETPUSHYES; | |
5279 | RETPUSHNO; | |
5280 | } | |
5281 | tmpsv = POPs; | |
85fbaab2 | 5282 | hv = MUTABLE_HV(POPs); |
c7e88ff3 | 5283 | if (LIKELY( SvTYPE(hv) == SVt_PVHV )) { |
ae77835f | 5284 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 5285 | RETPUSHYES; |
ef54e1a4 JH |
5286 | } |
5287 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 5288 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 5289 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
5290 | RETPUSHYES; |
5291 | } | |
ef54e1a4 JH |
5292 | } |
5293 | else { | |
cea2e8a9 | 5294 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 5295 | } |
a0d0e21e LW |
5296 | RETPUSHNO; |
5297 | } | |
79072805 | 5298 | |
a0d0e21e LW |
5299 | PP(pp_hslice) |
5300 | { | |
20b7effb | 5301 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
5302 | HV * const hv = MUTABLE_HV(POPs); |
5303 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
1b6737cc | 5304 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
d30e492c | 5305 | bool can_preserve = FALSE; |
79072805 | 5306 | |
eb85dfd3 DM |
5307 | if (localizing) { |
5308 | MAGIC *mg; | |
5309 | HV *stash; | |
5310 | ||
2c5f48c2 | 5311 | if (SvCANEXISTDELETE(hv)) |
d30e492c | 5312 | can_preserve = TRUE; |
eb85dfd3 DM |
5313 | } |
5314 | ||
6d822dc4 | 5315 | while (++MARK <= SP) { |
1b6737cc | 5316 | SV * const keysv = *MARK; |
6d822dc4 MS |
5317 | SV **svp; |
5318 | HE *he; | |
d30e492c VP |
5319 | bool preeminent = TRUE; |
5320 | ||
5321 | if (localizing && can_preserve) { | |
5322 | /* If we can determine whether the element exist, | |
5323 | * try to preserve the existenceness of a tied hash | |
5324 | * element by using EXISTS and DELETE if possible. | |
5325 | * Fallback to FETCH and STORE otherwise. */ | |
5326 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 5327 | } |
eb85dfd3 | 5328 | |
6d822dc4 | 5329 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 5330 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 5331 | |
6d822dc4 | 5332 | if (lval) { |
746f6409 | 5333 | if (!svp || !*svp || *svp == &PL_sv_undef) { |
be2597df | 5334 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
5335 | } |
5336 | if (localizing) { | |
6881372e | 5337 | if (HvNAME_get(hv) && isGV_or_RVCV(*svp)) |
159b6efe | 5338 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
5339 | else if (preeminent) |
5340 | save_helem_flags(hv, keysv, svp, | |
5341 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
5342 | else | |
5343 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
5344 | } |
5345 | } | |
746f6409 | 5346 | *MARK = svp && *svp ? *svp : &PL_sv_undef; |
79072805 | 5347 | } |
82334630 | 5348 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 5349 | MARK = ORIGMARK; |
04ab2c87 | 5350 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 5351 | SP = MARK; |
79072805 | 5352 | } |
a0d0e21e LW |
5353 | RETURN; |
5354 | } | |
5355 | ||
5cae3edb RZ |
5356 | PP(pp_kvhslice) |
5357 | { | |
20b7effb | 5358 | dSP; dMARK; |
5cae3edb RZ |
5359 | HV * const hv = MUTABLE_HV(POPs); |
5360 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 5361 | SSize_t items = SP - MARK; |
5cae3edb RZ |
5362 | |
5363 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
5364 | const I32 flags = is_lvalue_sub(); | |
5365 | if (flags) { | |
5366 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 5367 | /* diag_listed_as: Can't modify %s in %s */ |
cc5f9b8a FC |
5368 | Perl_croak(aTHX_ "Can't modify key/value hash slice in %s assignment", |
5369 | GIMME_V == G_ARRAY ? "list" : "scalar"); | |
5cae3edb RZ |
5370 | lval = flags; |
5371 | } | |
5372 | } | |
5373 | ||
5374 | MEXTEND(SP,items); | |
5375 | while (items > 1) { | |
5376 | *(MARK+items*2-1) = *(MARK+items); | |
5377 | items--; | |
5378 | } | |
5379 | items = SP-MARK; | |
5380 | SP += items; | |
5381 | ||
5382 | while (++MARK <= SP) { | |
5383 | SV * const keysv = *MARK; | |
5384 | SV **svp; | |
5385 | HE *he; | |
5386 | ||
5387 | he = hv_fetch_ent(hv, keysv, lval, 0); | |
5388 | svp = he ? &HeVAL(he) : NULL; | |
5389 | ||
5390 | if (lval) { | |
5391 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
5392 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
5393 | } | |
5394 | *MARK = sv_mortalcopy(*MARK); | |
5395 | } | |
5396 | *++MARK = svp && *svp ? *svp : &PL_sv_undef; | |
5397 | } | |
82334630 | 5398 | if (GIMME_V != G_ARRAY) { |
5cae3edb RZ |
5399 | MARK = SP - items*2; |
5400 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
5401 | SP = MARK; | |
5402 | } | |
5403 | RETURN; | |
5404 | } | |
5405 | ||
a0d0e21e LW |
5406 | /* List operators. */ |
5407 | ||
5408 | PP(pp_list) | |
5409 | { | |
4fa715fa | 5410 | I32 markidx = POPMARK; |
82334630 | 5411 | if (GIMME_V != G_ARRAY) { |
57bd6600 TC |
5412 | /* don't initialize mark here, EXTEND() may move the stack */ |
5413 | SV **mark; | |
4fa715fa | 5414 | dSP; |
b54564c3 | 5415 | EXTEND(SP, 1); /* in case no arguments, as in @empty */ |
57bd6600 | 5416 | mark = PL_stack_base + markidx; |
a0d0e21e LW |
5417 | if (++MARK <= SP) |
5418 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 5419 | else |
3280af22 | 5420 | *MARK = &PL_sv_undef; |
a0d0e21e | 5421 | SP = MARK; |
4fa715fa | 5422 | PUTBACK; |
79072805 | 5423 | } |
4fa715fa | 5424 | return NORMAL; |
79072805 LW |
5425 | } |
5426 | ||
a0d0e21e | 5427 | PP(pp_lslice) |
79072805 | 5428 | { |
39644a26 | 5429 | dSP; |
1b6737cc AL |
5430 | SV ** const lastrelem = PL_stack_sp; |
5431 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
5432 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
eb578fdb | 5433 | SV ** const firstrelem = lastlelem + 1; |
706a6ebc | 5434 | const U8 mod = PL_op->op_flags & OPf_MOD; |
1b6737cc | 5435 | |
eb578fdb KW |
5436 | const I32 max = lastrelem - lastlelem; |
5437 | SV **lelem; | |
a0d0e21e | 5438 | |
82334630 | 5439 | if (GIMME_V != G_ARRAY) { |
9e59c36b | 5440 | if (lastlelem < firstlelem) { |
7da51ead | 5441 | EXTEND(SP, 1); |
9e59c36b TC |
5442 | *firstlelem = &PL_sv_undef; |
5443 | } | |
5444 | else { | |
5445 | I32 ix = SvIV(*lastlelem); | |
5446 | if (ix < 0) | |
5447 | ix += max; | |
5448 | if (ix < 0 || ix >= max) | |
5449 | *firstlelem = &PL_sv_undef; | |
5450 | else | |
5451 | *firstlelem = firstrelem[ix]; | |
5452 | } | |
5453 | SP = firstlelem; | |
5454 | RETURN; | |
a0d0e21e LW |
5455 | } |
5456 | ||
5457 | if (max == 0) { | |
5458 | SP = firstlelem - 1; | |
5459 | RETURN; | |
5460 | } | |
5461 | ||
5462 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 5463 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 5464 | if (ix < 0) |
a0d0e21e | 5465 | ix += max; |
c73bf8e3 HS |
5466 | if (ix < 0 || ix >= max) |
5467 | *lelem = &PL_sv_undef; | |
5468 | else { | |
c73bf8e3 | 5469 | if (!(*lelem = firstrelem[ix])) |
3280af22 | 5470 | *lelem = &PL_sv_undef; |
60779a30 | 5471 | else if (mod && SvPADTMP(*lelem)) { |
706a6ebc | 5472 | *lelem = firstrelem[ix] = sv_mortalcopy(*lelem); |
60779a30 | 5473 | } |
748a9306 | 5474 | } |
79072805 | 5475 | } |
cbce292e | 5476 | SP = lastlelem; |
79072805 LW |
5477 | RETURN; |
5478 | } | |
5479 | ||
a0d0e21e LW |
5480 | PP(pp_anonlist) |
5481 | { | |
20b7effb | 5482 | dSP; dMARK; |
1b6737cc | 5483 | const I32 items = SP - MARK; |
ad64d0ec | 5484 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
31476221 | 5485 | SP = MARK; |
6e449a3a MHM |
5486 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
5487 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
5488 | RETURN; |
5489 | } | |
5490 | ||
5491 | PP(pp_anonhash) | |
79072805 | 5492 | { |
20b7effb | 5493 | dSP; dMARK; dORIGMARK; |
67e67fd7 | 5494 | HV* const hv = newHV(); |
8d455b9f | 5495 | SV* const retval = sv_2mortal( PL_op->op_flags & OPf_SPECIAL |
67e67fd7 | 5496 | ? newRV_noinc(MUTABLE_SV(hv)) |
8d455b9f | 5497 | : MUTABLE_SV(hv) ); |
a0d0e21e LW |
5498 | |
5499 | while (MARK < SP) { | |
3ed356df FC |
5500 | SV * const key = |
5501 | (MARK++, SvGMAGICAL(*MARK) ? sv_mortalcopy(*MARK) : *MARK); | |
5502 | SV *val; | |
a0d0e21e | 5503 | if (MARK < SP) |
3ed356df FC |
5504 | { |
5505 | MARK++; | |
5506 | SvGETMAGIC(*MARK); | |
5507 | val = newSV(0); | |
d187b712 | 5508 | sv_setsv_nomg(val, *MARK); |
3ed356df | 5509 | } |
a2a5de95 | 5510 | else |
3ed356df | 5511 | { |
a2a5de95 | 5512 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
3ed356df FC |
5513 | val = newSV(0); |
5514 | } | |
f12c7020 | 5515 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 5516 | } |
a0d0e21e | 5517 | SP = ORIGMARK; |
8d455b9f | 5518 | XPUSHs(retval); |
79072805 LW |
5519 | RETURN; |
5520 | } | |
5521 | ||
a0d0e21e | 5522 | PP(pp_splice) |
79072805 | 5523 | { |
20b7effb | 5524 | dSP; dMARK; dORIGMARK; |
5cd408a2 | 5525 | int num_args = (SP - MARK); |
00576728 | 5526 | AV *ary = MUTABLE_AV(*++MARK); |
eb578fdb KW |
5527 | SV **src; |
5528 | SV **dst; | |
c70927a6 FC |
5529 | SSize_t i; |
5530 | SSize_t offset; | |
5531 | SSize_t length; | |
5532 | SSize_t newlen; | |
5533 | SSize_t after; | |
5534 | SSize_t diff; | |
ad64d0ec | 5535 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5536 | |
1b6737cc | 5537 | if (mg) { |
3e0cb5de | 5538 | return Perl_tied_method(aTHX_ SV_CONST(SPLICE), mark - 1, MUTABLE_SV(ary), mg, |
af71faff NC |
5539 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, |
5540 | sp - mark); | |
93965878 | 5541 | } |
79072805 | 5542 | |
3275d25a AC |
5543 | if (SvREADONLY(ary)) |
5544 | Perl_croak_no_modify(); | |
5545 | ||
a0d0e21e | 5546 | SP++; |
79072805 | 5547 | |
a0d0e21e | 5548 | if (++MARK < SP) { |
4ea561bc | 5549 | offset = i = SvIV(*MARK); |
a0d0e21e | 5550 | if (offset < 0) |
93965878 | 5551 | offset += AvFILLp(ary) + 1; |
84902520 | 5552 | if (offset < 0) |
cea2e8a9 | 5553 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
5554 | if (++MARK < SP) { |
5555 | length = SvIVx(*MARK++); | |
48cdf507 GA |
5556 | if (length < 0) { |
5557 | length += AvFILLp(ary) - offset + 1; | |
5558 | if (length < 0) | |
5559 | length = 0; | |
5560 | } | |
79072805 LW |
5561 | } |
5562 | else | |
a0d0e21e | 5563 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 5564 | } |
a0d0e21e LW |
5565 | else { |
5566 | offset = 0; | |
5567 | length = AvMAX(ary) + 1; | |
5568 | } | |
8cbc2e3b | 5569 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
5570 | if (num_args > 2) |
5571 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 5572 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 5573 | } |
93965878 | 5574 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
5575 | if (after < 0) { /* not that much array */ |
5576 | length += after; /* offset+length now in array */ | |
5577 | after = 0; | |
5578 | if (!AvALLOC(ary)) | |
5579 | av_extend(ary, 0); | |
5580 | } | |
5581 | ||
5582 | /* At this point, MARK .. SP-1 is our new LIST */ | |
5583 | ||
5584 | newlen = SP - MARK; | |
5585 | diff = newlen - length; | |
13d7cbc1 GS |
5586 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
5587 | av_reify(ary); | |
a0d0e21e | 5588 | |
50528de0 WL |
5589 | /* make new elements SVs now: avoid problems if they're from the array */ |
5590 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 5591 | SV * const h = *dst; |
f2b990bf | 5592 | *dst++ = newSVsv(h); |
50528de0 WL |
5593 | } |
5594 | ||
a0d0e21e | 5595 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 5596 | SV **tmparyval = NULL; |
a0d0e21e | 5597 | if (newlen) { |
a02a5408 | 5598 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 5599 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 5600 | } |
a0d0e21e LW |
5601 | |
5602 | MARK = ORIGMARK + 1; | |
82334630 | 5603 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
31c61add | 5604 | const bool real = cBOOL(AvREAL(ary)); |
a0d0e21e | 5605 | MEXTEND(MARK, length); |
31c61add | 5606 | if (real) |
bbce6d69 | 5607 | EXTEND_MORTAL(length); |
31c61add FC |
5608 | for (i = 0, dst = MARK; i < length; i++) { |
5609 | if ((*dst = AvARRAY(ary)[i+offset])) { | |
5610 | if (real) | |
486ec47a | 5611 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5612 | } |
31c61add FC |
5613 | else |
5614 | *dst = &PL_sv_undef; | |
5615 | dst++; | |
a0d0e21e LW |
5616 | } |
5617 | MARK += length - 1; | |
79072805 | 5618 | } |
a0d0e21e LW |
5619 | else { |
5620 | *MARK = AvARRAY(ary)[offset+length-1]; | |
5621 | if (AvREAL(ary)) { | |
d689ffdd | 5622 | sv_2mortal(*MARK); |
a0d0e21e LW |
5623 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
5624 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 5625 | } |
92b69f65 FC |
5626 | if (!*MARK) |
5627 | *MARK = &PL_sv_undef; | |
a0d0e21e | 5628 | } |
93965878 | 5629 | AvFILLp(ary) += diff; |
a0d0e21e LW |
5630 | |
5631 | /* pull up or down? */ | |
5632 | ||
5633 | if (offset < after) { /* easier to pull up */ | |
5634 | if (offset) { /* esp. if nothing to pull */ | |
5635 | src = &AvARRAY(ary)[offset-1]; | |
5636 | dst = src - diff; /* diff is negative */ | |
5637 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
5638 | *dst-- = *src--; | |
79072805 | 5639 | } |
a0d0e21e | 5640 | dst = AvARRAY(ary); |
9c6bc640 | 5641 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5642 | AvMAX(ary) += diff; |
5643 | } | |
5644 | else { | |
5645 | if (after) { /* anything to pull down? */ | |
5646 | src = AvARRAY(ary) + offset + length; | |
5647 | dst = src + diff; /* diff is negative */ | |
5648 | Move(src, dst, after, SV*); | |
79072805 | 5649 | } |
93965878 | 5650 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5651 | /* avoid later double free */ |
5652 | } | |
5653 | i = -diff; | |
5654 | while (i) | |
ce0d59fd | 5655 | dst[--i] = NULL; |
a8e41ef4 | 5656 | |
a0d0e21e | 5657 | if (newlen) { |
50528de0 | 5658 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5659 | Safefree(tmparyval); |
5660 | } | |
5661 | } | |
5662 | else { /* no, expanding (or same) */ | |
d3961450 | 5663 | SV** tmparyval = NULL; |
a0d0e21e | 5664 | if (length) { |
a02a5408 | 5665 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5666 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5667 | } | |
5668 | ||
5669 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5670 | /* push up or down? */ |
a0d0e21e LW |
5671 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5672 | if (offset) { | |
5673 | src = AvARRAY(ary); | |
5674 | dst = src - diff; | |
5675 | Move(src, dst, offset, SV*); | |
79072805 | 5676 | } |
9c6bc640 | 5677 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5678 | AvMAX(ary) += diff; |
93965878 | 5679 | AvFILLp(ary) += diff; |
79072805 LW |
5680 | } |
5681 | else { | |
93965878 NIS |
5682 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5683 | av_extend(ary, AvFILLp(ary) + diff); | |
5684 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5685 | |
5686 | if (after) { | |
93965878 | 5687 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5688 | src = dst - diff; |
5689 | for (i = after; i; i--) { | |
5690 | *dst-- = *src--; | |
5691 | } | |
79072805 LW |
5692 | } |
5693 | } | |
a0d0e21e LW |
5694 | } |
5695 | ||
50528de0 WL |
5696 | if (newlen) { |
5697 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5698 | } |
50528de0 | 5699 | |
a0d0e21e | 5700 | MARK = ORIGMARK + 1; |
82334630 | 5701 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
a0d0e21e | 5702 | if (length) { |
31c61add FC |
5703 | const bool real = cBOOL(AvREAL(ary)); |
5704 | if (real) | |
bbce6d69 | 5705 | EXTEND_MORTAL(length); |
31c61add FC |
5706 | for (i = 0, dst = MARK; i < length; i++) { |
5707 | if ((*dst = tmparyval[i])) { | |
5708 | if (real) | |
486ec47a | 5709 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5710 | } |
31c61add FC |
5711 | else *dst = &PL_sv_undef; |
5712 | dst++; | |
79072805 LW |
5713 | } |
5714 | } | |
a0d0e21e LW |
5715 | MARK += length - 1; |
5716 | } | |
5717 | else if (length--) { | |
5718 | *MARK = tmparyval[length]; | |
5719 | if (AvREAL(ary)) { | |
d689ffdd | 5720 | sv_2mortal(*MARK); |
a0d0e21e LW |
5721 | while (length-- > 0) |
5722 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5723 | } |
92b69f65 FC |
5724 | if (!*MARK) |
5725 | *MARK = &PL_sv_undef; | |
79072805 | 5726 | } |
a0d0e21e | 5727 | else |
3280af22 | 5728 | *MARK = &PL_sv_undef; |
d3961450 | 5729 | Safefree(tmparyval); |
79072805 | 5730 | } |
474af990 FR |
5731 | |
5732 | if (SvMAGICAL(ary)) | |
5733 | mg_set(MUTABLE_SV(ary)); | |
5734 | ||
a0d0e21e | 5735 | SP = MARK; |
79072805 LW |
5736 | RETURN; |
5737 | } | |
5738 | ||
a0d0e21e | 5739 | PP(pp_push) |
79072805 | 5740 | { |
20b7effb | 5741 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5742 | AV * const ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5743 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5744 | |
1b6737cc | 5745 | if (mg) { |
ad64d0ec | 5746 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5747 | PUSHMARK(MARK); |
5748 | PUTBACK; | |
d343c3ef | 5749 | ENTER_with_name("call_PUSH"); |
3e0cb5de | 5750 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5751 | LEAVE_with_name("call_PUSH"); |
01072573 | 5752 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5753 | } |
a60c0954 | 5754 | else { |
a68090fe DM |
5755 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5756 | * only need to save locally, not on the save stack */ | |
5757 | U16 old_delaymagic = PL_delaymagic; | |
5758 | ||
cb077ed2 | 5759 | if (SvREADONLY(ary) && MARK < SP) Perl_croak_no_modify(); |
89c14e2e | 5760 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5761 | for (++MARK; MARK <= SP; MARK++) { |
3ed356df FC |
5762 | SV *sv; |
5763 | if (*MARK) SvGETMAGIC(*MARK); | |
5764 | sv = newSV(0); | |
a60c0954 | 5765 | if (*MARK) |
3ed356df | 5766 | sv_setsv_nomg(sv, *MARK); |
0a75904b | 5767 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5768 | } |
354b0578 | 5769 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5770 | mg_set(MUTABLE_SV(ary)); |
a68090fe | 5771 | PL_delaymagic = old_delaymagic; |
6eeabd23 VP |
5772 | } |
5773 | SP = ORIGMARK; | |
5774 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5775 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5776 | } |
79072805 LW |
5777 | RETURN; |
5778 | } | |
5779 | ||
b1c05ba5 | 5780 | /* also used for: pp_pop()*/ |
a0d0e21e | 5781 | PP(pp_shift) |
79072805 | 5782 | { |
39644a26 | 5783 | dSP; |
538f5756 | 5784 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
94f9945d | 5785 | ? MUTABLE_AV(GvAVn(PL_defgv)) : MUTABLE_AV(POPs); |
789b4bc9 | 5786 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5787 | EXTEND(SP, 1); |
c2b4a044 | 5788 | assert (sv); |
d689ffdd | 5789 | if (AvREAL(av)) |
a0d0e21e LW |
5790 | (void)sv_2mortal(sv); |
5791 | PUSHs(sv); | |
79072805 | 5792 | RETURN; |
79072805 LW |
5793 | } |
5794 | ||
a0d0e21e | 5795 | PP(pp_unshift) |
79072805 | 5796 | { |
20b7effb | 5797 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5798 | AV *ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5799 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5800 | |
1b6737cc | 5801 | if (mg) { |
ad64d0ec | 5802 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5803 | PUSHMARK(MARK); |
93965878 | 5804 | PUTBACK; |
d343c3ef | 5805 | ENTER_with_name("call_UNSHIFT"); |
36925d9e | 5806 | call_sv(SV_CONST(UNSHIFT),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5807 | LEAVE_with_name("call_UNSHIFT"); |
01072573 | 5808 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5809 | } |
a60c0954 | 5810 | else { |
a68090fe DM |
5811 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5812 | * only need to save locally, not on the save stack */ | |
5813 | U16 old_delaymagic = PL_delaymagic; | |
c70927a6 | 5814 | SSize_t i = 0; |
a68090fe | 5815 | |
a60c0954 | 5816 | av_unshift(ary, SP - MARK); |
39539141 | 5817 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5818 | while (MARK < SP) { |
1b6737cc | 5819 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5820 | (void)av_store(ary, i++, sv); |
5821 | } | |
39539141 DIM |
5822 | if (PL_delaymagic & DM_ARRAY_ISA) |
5823 | mg_set(MUTABLE_SV(ary)); | |
a68090fe | 5824 | PL_delaymagic = old_delaymagic; |
79072805 | 5825 | } |
a0d0e21e | 5826 | SP = ORIGMARK; |
6eeabd23 | 5827 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5828 | PUSHi( AvFILL(ary) + 1 ); |
5829 | } | |
79072805 | 5830 | RETURN; |
79072805 LW |
5831 | } |
5832 | ||
a0d0e21e | 5833 | PP(pp_reverse) |
79072805 | 5834 | { |
20b7effb | 5835 | dSP; dMARK; |
79072805 | 5836 | |
82334630 | 5837 | if (GIMME_V == G_ARRAY) { |
484c818f VP |
5838 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5839 | AV *av; | |
5840 | ||
5841 | /* See pp_sort() */ | |
5842 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5843 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5844 | av = MUTABLE_AV((*SP)); | |
5845 | /* In-place reversing only happens in void context for the array | |
5846 | * assignment. We don't need to push anything on the stack. */ | |
5847 | SP = MARK; | |
5848 | ||
5849 | if (SvMAGICAL(av)) { | |
c70927a6 | 5850 | SSize_t i, j; |
eb578fdb | 5851 | SV *tmp = sv_newmortal(); |
484c818f VP |
5852 | /* For SvCANEXISTDELETE */ |
5853 | HV *stash; | |
5854 | const MAGIC *mg; | |
5855 | bool can_preserve = SvCANEXISTDELETE(av); | |
5856 | ||
b9f2b683 | 5857 | for (i = 0, j = av_tindex(av); i < j; ++i, --j) { |
eb578fdb | 5858 | SV *begin, *end; |
484c818f VP |
5859 | |
5860 | if (can_preserve) { | |
5861 | if (!av_exists(av, i)) { | |
5862 | if (av_exists(av, j)) { | |
eb578fdb | 5863 | SV *sv = av_delete(av, j, 0); |
484c818f VP |
5864 | begin = *av_fetch(av, i, TRUE); |
5865 | sv_setsv_mg(begin, sv); | |
5866 | } | |
5867 | continue; | |
5868 | } | |
5869 | else if (!av_exists(av, j)) { | |
eb578fdb | 5870 | SV *sv = av_delete(av, i, 0); |
484c818f VP |
5871 | end = *av_fetch(av, j, TRUE); |
5872 | sv_setsv_mg(end, sv); | |
5873 | continue; | |
5874 | } | |
5875 | } | |
5876 | ||
5877 | begin = *av_fetch(av, i, TRUE); | |
5878 | end = *av_fetch(av, j, TRUE); | |
5879 | sv_setsv(tmp, begin); | |
5880 | sv_setsv_mg(begin, end); | |
5881 | sv_setsv_mg(end, tmp); | |
5882 | } | |
5883 | } | |
5884 | else { | |
5885 | SV **begin = AvARRAY(av); | |
484c818f | 5886 | |
95a26d8e VP |
5887 | if (begin) { |
5888 | SV **end = begin + AvFILLp(av); | |
5889 | ||
5890 | while (begin < end) { | |
eb578fdb | 5891 | SV * const tmp = *begin; |
95a26d8e VP |
5892 | *begin++ = *end; |
5893 | *end-- = tmp; | |
5894 | } | |
484c818f VP |
5895 | } |
5896 | } | |
5897 | } | |
5898 | else { | |
5899 | SV **oldsp = SP; | |
5900 | MARK++; | |
5901 | while (MARK < SP) { | |
eb578fdb | 5902 | SV * const tmp = *MARK; |
484c818f VP |
5903 | *MARK++ = *SP; |
5904 | *SP-- = tmp; | |
5905 | } | |
5906 | /* safe as long as stack cannot get extended in the above */ | |
5907 | SP = oldsp; | |
a0d0e21e | 5908 | } |
79072805 LW |
5909 | } |
5910 | else { | |
eb578fdb | 5911 | char *up; |
a0d0e21e LW |
5912 | dTARGET; |
5913 | STRLEN len; | |
79072805 | 5914 | |
7e2040f0 | 5915 | SvUTF8_off(TARG); /* decontaminate */ |
47836a13 | 5916 | if (SP - MARK > 1) { |
3280af22 | 5917 | do_join(TARG, &PL_sv_no, MARK, SP); |
47836a13 Z |
5918 | SP = MARK + 1; |
5919 | SETs(TARG); | |
5920 | } else if (SP > MARK) { | |
d5d91c1e | 5921 | sv_setsv(TARG, *SP); |
47836a13 Z |
5922 | SETs(TARG); |
5923 | } else { | |
d5d91c1e | 5924 | sv_setsv(TARG, DEFSV); |
47836a13 | 5925 | XPUSHs(TARG); |
1e21d011 B |
5926 | } |
5927 | ||
a0d0e21e LW |
5928 | up = SvPV_force(TARG, len); |
5929 | if (len > 1) { | |
19742f39 | 5930 | char *down; |
7e2040f0 | 5931 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5932 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5933 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5934 | while (s < send) { |
d742c382 | 5935 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5936 | s++; |
5937 | continue; | |
5938 | } | |
5939 | else { | |
4b88fb76 | 5940 | if (!utf8_to_uvchr_buf(s, send, 0)) |
a0dbb045 | 5941 | break; |
dfe13c55 | 5942 | up = (char*)s; |
a0ed51b3 | 5943 | s += UTF8SKIP(s); |
dfe13c55 | 5944 | down = (char*)(s - 1); |
a0dbb045 | 5945 | /* reverse this character */ |
a0ed51b3 | 5946 | while (down > up) { |
19742f39 | 5947 | const char tmp = *up; |
a0ed51b3 | 5948 | *up++ = *down; |
19742f39 | 5949 | *down-- = tmp; |
a0ed51b3 LW |
5950 | } |
5951 | } | |
5952 | } | |
5953 | up = SvPVX(TARG); | |
5954 | } | |
a0d0e21e LW |
5955 | down = SvPVX(TARG) + len - 1; |
5956 | while (down > up) { | |
19742f39 | 5957 | const char tmp = *up; |
a0d0e21e | 5958 | *up++ = *down; |
19742f39 | 5959 | *down-- = tmp; |
a0d0e21e | 5960 | } |
3aa33fe5 | 5961 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5962 | } |
79072805 | 5963 | } |
a0d0e21e | 5964 | RETURN; |
79072805 LW |
5965 | } |
5966 | ||
a0d0e21e | 5967 | PP(pp_split) |
79072805 | 5968 | { |
20b7effb | 5969 | dSP; dTARG; |
692044df DM |
5970 | AV *ary = ( (PL_op->op_private & OPpSPLIT_ASSIGN) /* @a = split */ |
5971 | && (PL_op->op_flags & OPf_STACKED)) /* @{expr} = split */ | |
5012eebe | 5972 | ? (AV *)POPs : NULL; |
eb578fdb | 5973 | IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5974 | SV * const sv = POPs; |
a0d0e21e | 5975 | STRLEN len; |
eb578fdb | 5976 | const char *s = SvPV_const(sv, len); |
1b6737cc | 5977 | const bool do_utf8 = DO_UTF8(sv); |
20ae58f7 | 5978 | const bool in_uni_8_bit = IN_UNI_8_BIT; |
727b7506 | 5979 | const char *strend = s + len; |
5012eebe | 5980 | PMOP *pm = cPMOPx(PL_op); |
eb578fdb KW |
5981 | REGEXP *rx; |
5982 | SV *dstr; | |
5983 | const char *m; | |
c70927a6 | 5984 | SSize_t iters = 0; |
d14578b8 KW |
5985 | const STRLEN slen = do_utf8 |
5986 | ? utf8_length((U8*)s, (U8*)strend) | |
5987 | : (STRLEN)(strend - s); | |
c70927a6 | 5988 | SSize_t maxiters = slen + 10; |
c1a7495a | 5989 | I32 trailing_empty = 0; |
727b7506 | 5990 | const char *orig; |
052a7c76 | 5991 | const IV origlimit = limit; |
a0d0e21e LW |
5992 | I32 realarray = 0; |
5993 | I32 base; | |
1c23e2bd | 5994 | const U8 gimme = GIMME_V; |
941446f6 | 5995 | bool gimme_scalar; |
692044df | 5996 | I32 oldsave = PL_savestack_ix; |
437d3b4e | 5997 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5998 | bool multiline = 0; |
b37c2d43 | 5999 | MAGIC *mg = NULL; |
79072805 | 6000 | |
aaa362c4 | 6001 | rx = PM_GETRE(pm); |
bbce6d69 | 6002 | |
a62b1201 | 6003 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
dbc200c5 | 6004 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 6005 | |
692044df | 6006 | /* handle @ary = split(...) optimisation */ |
5012eebe DM |
6007 | if (PL_op->op_private & OPpSPLIT_ASSIGN) { |
6008 | if (!(PL_op->op_flags & OPf_STACKED)) { | |
692044df DM |
6009 | if (PL_op->op_private & OPpSPLIT_LEX) { |
6010 | if (PL_op->op_private & OPpLVAL_INTRO) | |
6011 | SAVECLEARSV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); | |
5012eebe | 6012 | ary = (AV *)PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff); |
692044df | 6013 | } |
5012eebe DM |
6014 | else { |
6015 | GV *gv = | |
971a9dd3 | 6016 | #ifdef USE_ITHREADS |
5012eebe | 6017 | MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); |
971a9dd3 | 6018 | #else |
5012eebe | 6019 | pm->op_pmreplrootu.op_pmtargetgv; |
20e98b0f | 6020 | #endif |
692044df DM |
6021 | if (PL_op->op_private & OPpLVAL_INTRO) |
6022 | ary = save_ary(gv); | |
6023 | else | |
6024 | ary = GvAVn(gv); | |
5012eebe | 6025 | } |
692044df DM |
6026 | /* skip anything pushed by OPpLVAL_INTRO above */ |
6027 | oldsave = PL_savestack_ix; | |
5012eebe DM |
6028 | } |
6029 | ||
a0d0e21e | 6030 | realarray = 1; |
8ec5e241 | 6031 | PUTBACK; |
a0d0e21e | 6032 | av_extend(ary,0); |
821956c5 | 6033 | (void)sv_2mortal(SvREFCNT_inc_simple_NN(sv)); |
a0d0e21e | 6034 | av_clear(ary); |
8ec5e241 | 6035 | SPAGAIN; |
ad64d0ec | 6036 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 6037 | PUSHMARK(SP); |
ad64d0ec | 6038 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
6039 | } |
6040 | else { | |
1c0b011c | 6041 | if (!AvREAL(ary)) { |
1b6737cc | 6042 | I32 i; |
1c0b011c | 6043 | AvREAL_on(ary); |
abff13bb | 6044 | AvREIFY_off(ary); |
1c0b011c | 6045 | for (i = AvFILLp(ary); i >= 0; i--) |
d14578b8 | 6046 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
6047 | } |
6048 | /* temporarily switch stacks */ | |
8b7059b1 | 6049 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 6050 | make_mortal = 0; |
1c0b011c | 6051 | } |
79072805 | 6052 | } |
5012eebe | 6053 | |
3280af22 | 6054 | base = SP - PL_stack_base; |
a0d0e21e | 6055 | orig = s; |
dbc200c5 | 6056 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e | 6057 | if (do_utf8) { |
d720149d | 6058 | while (s < strend && isSPACE_utf8_safe(s, strend)) |
613f191e TS |
6059 | s += UTF8SKIP(s); |
6060 | } | |
a62b1201 | 6061 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
d720149d | 6062 | while (s < strend && isSPACE_LC(*s)) |
bbce6d69 | 6063 | s++; |
6064 | } | |
20ae58f7 AC |
6065 | else if (in_uni_8_bit) { |
6066 | while (s < strend && isSPACE_L1(*s)) | |
6067 | s++; | |
6068 | } | |
bbce6d69 | 6069 | else { |
d720149d | 6070 | while (s < strend && isSPACE(*s)) |
bbce6d69 | 6071 | s++; |
6072 | } | |
a0d0e21e | 6073 | } |
73134a2e | 6074 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 6075 | multiline = 1; |
c07a80fd | 6076 | } |
6077 | ||
941446f6 FC |
6078 | gimme_scalar = gimme == G_SCALAR && !ary; |
6079 | ||
a0d0e21e LW |
6080 | if (!limit) |
6081 | limit = maxiters + 2; | |
dbc200c5 | 6082 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 6083 | while (--limit) { |
bbce6d69 | 6084 | m = s; |
8727f688 YO |
6085 | /* this one uses 'm' and is a negative test */ |
6086 | if (do_utf8) { | |
7a207065 | 6087 | while (m < strend && ! isSPACE_utf8_safe(m, strend) ) { |
613f191e | 6088 | const int t = UTF8SKIP(m); |
7a207065 | 6089 | /* isSPACE_utf8_safe returns FALSE for malform utf8 */ |
613f191e TS |
6090 | if (strend - m < t) |
6091 | m = strend; | |
6092 | else | |
6093 | m += t; | |
6094 | } | |
a62b1201 | 6095 | } |
d14578b8 KW |
6096 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
6097 | { | |
8727f688 YO |
6098 | while (m < strend && !isSPACE_LC(*m)) |
6099 | ++m; | |
20ae58f7 AC |
6100 | } |
6101 | else if (in_uni_8_bit) { | |
6102 | while (m < strend && !isSPACE_L1(*m)) | |
6103 | ++m; | |
8727f688 YO |
6104 | } else { |
6105 | while (m < strend && !isSPACE(*m)) | |
6106 | ++m; | |
a8e41ef4 | 6107 | } |
a0d0e21e LW |
6108 | if (m >= strend) |
6109 | break; | |
bbce6d69 | 6110 | |
c1a7495a BB |
6111 | if (gimme_scalar) { |
6112 | iters++; | |
6113 | if (m-s == 0) | |
6114 | trailing_empty++; | |
6115 | else | |
6116 | trailing_empty = 0; | |
6117 | } else { | |
6118 | dstr = newSVpvn_flags(s, m-s, | |
6119 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6120 | XPUSHs(dstr); | |
6121 | } | |
bbce6d69 | 6122 | |
613f191e TS |
6123 | /* skip the whitespace found last */ |
6124 | if (do_utf8) | |
6125 | s = m + UTF8SKIP(m); | |
6126 | else | |
6127 | s = m + 1; | |
6128 | ||
8727f688 YO |
6129 | /* this one uses 's' and is a positive test */ |
6130 | if (do_utf8) { | |
7a207065 | 6131 | while (s < strend && isSPACE_utf8_safe(s, strend) ) |
8727f688 | 6132 | s += UTF8SKIP(s); |
a62b1201 | 6133 | } |
d14578b8 KW |
6134 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
6135 | { | |
8727f688 YO |
6136 | while (s < strend && isSPACE_LC(*s)) |
6137 | ++s; | |
20ae58f7 AC |
6138 | } |
6139 | else if (in_uni_8_bit) { | |
6140 | while (s < strend && isSPACE_L1(*s)) | |
6141 | ++s; | |
8727f688 YO |
6142 | } else { |
6143 | while (s < strend && isSPACE(*s)) | |
6144 | ++s; | |
a8e41ef4 | 6145 | } |
79072805 LW |
6146 | } |
6147 | } | |
07bc277f | 6148 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 6149 | while (--limit) { |
a6e20a40 AL |
6150 | for (m = s; m < strend && *m != '\n'; m++) |
6151 | ; | |
a0d0e21e LW |
6152 | m++; |
6153 | if (m >= strend) | |
6154 | break; | |
c1a7495a BB |
6155 | |
6156 | if (gimme_scalar) { | |
6157 | iters++; | |
6158 | if (m-s == 0) | |
6159 | trailing_empty++; | |
6160 | else | |
6161 | trailing_empty = 0; | |
6162 | } else { | |
6163 | dstr = newSVpvn_flags(s, m-s, | |
6164 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6165 | XPUSHs(dstr); | |
6166 | } | |
a0d0e21e LW |
6167 | s = m; |
6168 | } | |
6169 | } | |
07bc277f | 6170 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
6171 | /* |
6172 | Pre-extend the stack, either the number of bytes or | |
6173 | characters in the string or a limited amount, triggered by: | |
6174 | ||
6175 | my ($x, $y) = split //, $str; | |
6176 | or | |
6177 | split //, $str, $i; | |
6178 | */ | |
c1a7495a | 6179 | if (!gimme_scalar) { |
052a7c76 DM |
6180 | const IV items = limit - 1; |
6181 | /* setting it to -1 will trigger a panic in EXTEND() */ | |
6182 | const SSize_t sslen = slen > SSize_t_MAX ? -1 : (SSize_t)slen; | |
6183 | if (items >=0 && items < sslen) | |
c1a7495a BB |
6184 | EXTEND(SP, items); |
6185 | else | |
052a7c76 | 6186 | EXTEND(SP, sslen); |
c1a7495a | 6187 | } |
640f820d | 6188 | |
e9515b0f AB |
6189 | if (do_utf8) { |
6190 | while (--limit) { | |
6191 | /* keep track of how many bytes we skip over */ | |
6192 | m = s; | |
640f820d | 6193 | s += UTF8SKIP(s); |
c1a7495a BB |
6194 | if (gimme_scalar) { |
6195 | iters++; | |
6196 | if (s-m == 0) | |
6197 | trailing_empty++; | |
6198 | else | |
6199 | trailing_empty = 0; | |
6200 | } else { | |
6201 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 6202 | |
c1a7495a BB |
6203 | PUSHs(dstr); |
6204 | } | |
640f820d | 6205 | |
e9515b0f AB |
6206 | if (s >= strend) |
6207 | break; | |
6208 | } | |
6209 | } else { | |
6210 | while (--limit) { | |
c1a7495a BB |
6211 | if (gimme_scalar) { |
6212 | iters++; | |
6213 | } else { | |
6214 | dstr = newSVpvn(s, 1); | |
e9515b0f | 6215 | |
e9515b0f | 6216 | |
c1a7495a BB |
6217 | if (make_mortal) |
6218 | sv_2mortal(dstr); | |
640f820d | 6219 | |
c1a7495a BB |
6220 | PUSHs(dstr); |
6221 | } | |
6222 | ||
6223 | s++; | |
e9515b0f AB |
6224 | |
6225 | if (s >= strend) | |
6226 | break; | |
6227 | } | |
640f820d AB |
6228 | } |
6229 | } | |
3c8556c3 | 6230 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
6231 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
6232 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
8e1490ee | 6233 | && !(RX_EXTFLAGS(rx) & RXf_IS_ANCHORED)) { |
07bc277f | 6234 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); |
f9f4320a | 6235 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 6236 | |
07bc277f | 6237 | len = RX_MINLENRET(rx); |
3c8556c3 | 6238 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 6239 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 6240 | while (--limit) { |
a6e20a40 AL |
6241 | for (m = s; m < strend && *m != c; m++) |
6242 | ; | |
a0d0e21e LW |
6243 | if (m >= strend) |
6244 | break; | |
c1a7495a BB |
6245 | if (gimme_scalar) { |
6246 | iters++; | |
6247 | if (m-s == 0) | |
6248 | trailing_empty++; | |
6249 | else | |
6250 | trailing_empty = 0; | |
6251 | } else { | |
6252 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 6253 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
6254 | XPUSHs(dstr); |
6255 | } | |
93f04dac JH |
6256 | /* The rx->minlen is in characters but we want to step |
6257 | * s ahead by bytes. */ | |
1aa99e6b | 6258 | if (do_utf8) |
cf70d9e6 | 6259 | s = (char*)utf8_hop_forward((U8*) m, len, (U8*) strend); |
1aa99e6b IH |
6260 | else |
6261 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
6262 | } |
6263 | } | |
6264 | else { | |
a0d0e21e | 6265 | while (s < strend && --limit && |
f722798b | 6266 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 6267 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 6268 | { |
c1a7495a BB |
6269 | if (gimme_scalar) { |
6270 | iters++; | |
6271 | if (m-s == 0) | |
6272 | trailing_empty++; | |
6273 | else | |
6274 | trailing_empty = 0; | |
6275 | } else { | |
6276 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 6277 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
6278 | XPUSHs(dstr); |
6279 | } | |
93f04dac JH |
6280 | /* The rx->minlen is in characters but we want to step |
6281 | * s ahead by bytes. */ | |
1aa99e6b | 6282 | if (do_utf8) |
cf70d9e6 | 6283 | s = (char*)utf8_hop_forward((U8*)m, len, (U8 *) strend); |
1aa99e6b IH |
6284 | else |
6285 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 6286 | } |
463ee0b2 | 6287 | } |
463ee0b2 | 6288 | } |
a0d0e21e | 6289 | else { |
07bc277f | 6290 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 6291 | while (s < strend && --limit) |
bbce6d69 | 6292 | { |
1b6737cc | 6293 | I32 rex_return; |
080c2dec | 6294 | PUTBACK; |
d14578b8 | 6295 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1, |
c33e64f0 | 6296 | sv, NULL, 0); |
080c2dec | 6297 | SPAGAIN; |
1b6737cc | 6298 | if (rex_return == 0) |
080c2dec | 6299 | break; |
d9f97599 | 6300 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
6502e081 DM |
6301 | /* we never pass the REXEC_COPY_STR flag, so it should |
6302 | * never get copied */ | |
6303 | assert(!RX_MATCH_COPIED(rx)); | |
07bc277f | 6304 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
6305 | |
6306 | if (gimme_scalar) { | |
6307 | iters++; | |
6308 | if (m-s == 0) | |
6309 | trailing_empty++; | |
6310 | else | |
6311 | trailing_empty = 0; | |
6312 | } else { | |
6313 | dstr = newSVpvn_flags(s, m-s, | |
6314 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6315 | XPUSHs(dstr); | |
6316 | } | |
07bc277f | 6317 | if (RX_NPARENS(rx)) { |
1b6737cc | 6318 | I32 i; |
07bc277f NC |
6319 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
6320 | s = RX_OFFS(rx)[i].start + orig; | |
6321 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
6322 | |
6323 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
6324 | parens that didn't match -- they should be set to | |
6325 | undef, not the empty string */ | |
c1a7495a BB |
6326 | if (gimme_scalar) { |
6327 | iters++; | |
6328 | if (m-s == 0) | |
6329 | trailing_empty++; | |
6330 | else | |
6331 | trailing_empty = 0; | |
6332 | } else { | |
6333 | if (m >= orig && s >= orig) { | |
6334 | dstr = newSVpvn_flags(s, m-s, | |
6335 | (do_utf8 ? SVf_UTF8 : 0) | |
6336 | | make_mortal); | |
6337 | } | |
6338 | else | |
6339 | dstr = &PL_sv_undef; /* undef, not "" */ | |
6340 | XPUSHs(dstr); | |
748a9306 | 6341 | } |
c1a7495a | 6342 | |
a0d0e21e LW |
6343 | } |
6344 | } | |
07bc277f | 6345 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 6346 | } |
79072805 | 6347 | } |
8ec5e241 | 6348 | |
c1a7495a BB |
6349 | if (!gimme_scalar) { |
6350 | iters = (SP - PL_stack_base) - base; | |
6351 | } | |
a0d0e21e | 6352 | if (iters > maxiters) |
cea2e8a9 | 6353 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 6354 | |
a0d0e21e LW |
6355 | /* keep field after final delim? */ |
6356 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
6357 | if (!gimme_scalar) { |
6358 | const STRLEN l = strend - s; | |
6359 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6360 | XPUSHs(dstr); | |
6361 | } | |
a0d0e21e | 6362 | iters++; |
79072805 | 6363 | } |
a0d0e21e | 6364 | else if (!origlimit) { |
c1a7495a BB |
6365 | if (gimme_scalar) { |
6366 | iters -= trailing_empty; | |
6367 | } else { | |
6368 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
6369 | if (TOPs && !make_mortal) | |
6370 | sv_2mortal(TOPs); | |
71ca73e5 | 6371 | *SP-- = NULL; |
c1a7495a BB |
6372 | iters--; |
6373 | } | |
89900bd3 | 6374 | } |
a0d0e21e | 6375 | } |
8ec5e241 | 6376 | |
8b7059b1 DM |
6377 | PUTBACK; |
6378 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
6379 | SPAGAIN; | |
a0d0e21e | 6380 | if (realarray) { |
8ec5e241 | 6381 | if (!mg) { |
1c0b011c NIS |
6382 | if (SvSMAGICAL(ary)) { |
6383 | PUTBACK; | |
ad64d0ec | 6384 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
6385 | SPAGAIN; |
6386 | } | |
6387 | if (gimme == G_ARRAY) { | |
6388 | EXTEND(SP, iters); | |
6389 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
6390 | SP += iters; | |
6391 | RETURN; | |
6392 | } | |
8ec5e241 | 6393 | } |
1c0b011c | 6394 | else { |
fb73857a | 6395 | PUTBACK; |
d343c3ef | 6396 | ENTER_with_name("call_PUSH"); |
36925d9e | 6397 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 6398 | LEAVE_with_name("call_PUSH"); |
fb73857a | 6399 | SPAGAIN; |
8ec5e241 | 6400 | if (gimme == G_ARRAY) { |
c70927a6 | 6401 | SSize_t i; |
8ec5e241 NIS |
6402 | /* EXTEND should not be needed - we just popped them */ |
6403 | EXTEND(SP, iters); | |
6404 | for (i=0; i < iters; i++) { | |
6405 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 6406 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 6407 | } |
1c0b011c NIS |
6408 | RETURN; |
6409 | } | |
a0d0e21e LW |
6410 | } |
6411 | } | |
6412 | else { | |
6413 | if (gimme == G_ARRAY) | |
6414 | RETURN; | |
6415 | } | |
7f18b612 YST |
6416 | |
6417 | GETTARGET; | |
02c161ef | 6418 | XPUSHi(iters); |
7f18b612 | 6419 | RETURN; |
79072805 | 6420 | } |
85e6fe83 | 6421 | |
c5917253 NC |
6422 | PP(pp_once) |
6423 | { | |
6424 | dSP; | |
6425 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
6426 | ||
6427 | if (SvPADSTALE(sv)) { | |
6428 | /* First time. */ | |
6429 | SvPADSTALE_off(sv); | |
6430 | RETURNOP(cLOGOP->op_other); | |
6431 | } | |
6432 | RETURNOP(cLOGOP->op_next); | |
6433 | } | |
6434 | ||
c0329465 MB |
6435 | PP(pp_lock) |
6436 | { | |
39644a26 | 6437 | dSP; |
c0329465 | 6438 | dTOPss; |
e55aaa0e | 6439 | SV *retsv = sv; |
68795e93 | 6440 | SvLOCK(sv); |
f79aa60b FC |
6441 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
6442 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
6443 | retsv = refto(retsv); |
6444 | } | |
6445 | SETs(retsv); | |
c0329465 MB |
6446 | RETURN; |
6447 | } | |
a863c7d1 | 6448 | |
65bca31a | 6449 | |
10088f56 | 6450 | /* used for: pp_padany(), pp_custom(); plus any system ops |
b1c05ba5 DM |
6451 | * that aren't implemented on a particular platform */ |
6452 | ||
65bca31a NC |
6453 | PP(unimplemented_op) |
6454 | { | |
361ed549 NC |
6455 | const Optype op_type = PL_op->op_type; |
6456 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
6457 | with out of range op numbers - it only "special" cases op_custom. | |
6458 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
6459 | if we get here for a custom op then that means that the custom op didn't | |
6460 | have an implementation. Given that OP_NAME() looks up the custom op | |
6461 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
6462 | registers &PL_unimplemented_op as the address of their custom op. | |
6463 | NULL doesn't generate a useful error message. "custom" does. */ | |
6464 | const char *const name = op_type >= OP_max | |
6465 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
6466 | if(OP_IS_SOCKET(op_type)) |
6467 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 6468 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
6469 | } |
6470 | ||
bea284c8 FC |
6471 | static void |
6472 | S_maybe_unwind_defav(pTHX) | |
6473 | { | |
6474 | if (CX_CUR()->cx_type & CXp_HASARGS) { | |
6475 | PERL_CONTEXT *cx = CX_CUR(); | |
6476 | ||
6477 | assert(CxHASARGS(cx)); | |
6478 | cx_popsub_args(cx); | |
6479 | cx->cx_type &= ~CXp_HASARGS; | |
6480 | } | |
6481 | } | |
6482 | ||
deb8a388 FC |
6483 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
6484 | PP(pp_coreargs) | |
6485 | { | |
6486 | dSP; | |
7fa5bd9b | 6487 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
498a02d8 | 6488 | int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0; |
7fa5bd9b | 6489 | AV * const at_ = GvAV(PL_defgv); |
0e80230d FC |
6490 | SV **svp = at_ ? AvARRAY(at_) : NULL; |
6491 | I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0; | |
7fa5bd9b | 6492 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 6493 | bool seen_question = 0; |
7fa5bd9b | 6494 | const char *err = NULL; |
3e6568b4 | 6495 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 6496 | |
46e00a91 FC |
6497 | /* Count how many args there are first, to get some idea how far to |
6498 | extend the stack. */ | |
7fa5bd9b | 6499 | while (oa) { |
bf0571fd | 6500 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 6501 | maxargs++; |
46e00a91 FC |
6502 | if (oa & OA_OPTIONAL) seen_question = 1; |
6503 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
6504 | oa >>= 4; |
6505 | } | |
6506 | ||
6507 | if(numargs < minargs) err = "Not enough"; | |
6508 | else if(numargs > maxargs) err = "Too many"; | |
6509 | if (err) | |
6510 | /* diag_listed_as: Too many arguments for %s */ | |
6511 | Perl_croak(aTHX_ | |
6512 | "%s arguments for %s", err, | |
2a90c7c6 | 6513 | opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv) |
7fa5bd9b FC |
6514 | ); |
6515 | ||
6516 | /* Reset the stack pointer. Without this, we end up returning our own | |
6517 | arguments in list context, in addition to the values we are supposed | |
6518 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 6519 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b | 6520 | nextstate. */ |
4ebe6e95 | 6521 | SP = PL_stack_base + CX_CUR()->blk_oldsp; |
7fa5bd9b | 6522 | |
46e00a91 FC |
6523 | if(!maxargs) RETURN; |
6524 | ||
bf0571fd FC |
6525 | /* We do this here, rather than with a separate pushmark op, as it has |
6526 | to come in between two things this function does (stack reset and | |
6527 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 6528 | if (pushmark) { |
bf0571fd FC |
6529 | PUTBACK; |
6530 | (void)Perl_pp_pushmark(aTHX); | |
6531 | } | |
6532 | ||
6533 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 6534 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
6535 | |
6536 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 6537 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 6538 | whicharg++; |
46e00a91 FC |
6539 | switch (oa & 7) { |
6540 | case OA_SCALAR: | |
1efec5ed | 6541 | try_defsv: |
d6d78e19 | 6542 | if (!numargs && defgv && whicharg == minargs + 1) { |
195eefec | 6543 | PUSHs(DEFSV); |
d6d78e19 FC |
6544 | } |
6545 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 6546 | break; |
bf0571fd FC |
6547 | case OA_LIST: |
6548 | while (numargs--) { | |
6549 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
6550 | svp++; | |
6551 | } | |
6552 | RETURN; | |
bea284c8 FC |
6553 | case OA_AVREF: |
6554 | if (!numargs) { | |
6555 | GV *gv; | |
6556 | if (CvUNIQUE(find_runcv_where(FIND_RUNCV_level_eq,1,NULL))) | |
6557 | gv = PL_argvgv; | |
6558 | else { | |
6559 | S_maybe_unwind_defav(aTHX); | |
6560 | gv = PL_defgv; | |
6561 | } | |
6562 | PUSHs((SV *)GvAVn(gv)); | |
6563 | break; | |
6564 | } | |
6565 | if (!svp || !*svp || !SvROK(*svp) | |
6566 | || SvTYPE(SvRV(*svp)) != SVt_PVAV) | |
6567 | DIE(aTHX_ | |
6568 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
6569 | "Type of arg %d to &CORE::%s must be array reference", | |
6570 | whicharg, PL_op_desc[opnum] | |
6571 | ); | |
6572 | PUSHs(SvRV(*svp)); | |
6573 | break; | |
19c481f4 FC |
6574 | case OA_HVREF: |
6575 | if (!svp || !*svp || !SvROK(*svp) | |
73665bc4 FC |
6576 | || ( SvTYPE(SvRV(*svp)) != SVt_PVHV |
6577 | && ( opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6578 | || SvTYPE(SvRV(*svp)) != SVt_PVAV ))) | |
19c481f4 FC |
6579 | DIE(aTHX_ |
6580 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
73665bc4 FC |
6581 | "Type of arg %d to &CORE::%s must be hash%s reference", |
6582 | whicharg, PL_op_desc[opnum], | |
6583 | opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6584 | ? "" | |
6585 | : " or array" | |
19c481f4 FC |
6586 | ); |
6587 | PUSHs(SvRV(*svp)); | |
6588 | break; | |
c931b036 | 6589 | case OA_FILEREF: |
30901a8a FC |
6590 | if (!numargs) PUSHs(NULL); |
6591 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
6592 | /* no magic here, as the prototype will have added an extra |
6593 | refgen and we just want what was there before that */ | |
6594 | PUSHs(SvRV(*svp)); | |
6595 | else { | |
6596 | const bool constr = PL_op->op_private & whicharg; | |
6597 | PUSHs(S_rv2gv(aTHX_ | |
6598 | svp && *svp ? *svp : &PL_sv_undef, | |
b54f893d | 6599 | constr, cBOOL(CopHINTS_get(PL_curcop) & HINT_STRICT_REFS), |
c931b036 FC |
6600 | !constr |
6601 | )); | |
6602 | } | |
6603 | break; | |
c72a5629 | 6604 | case OA_SCALARREF: |
1efec5ed FC |
6605 | if (!numargs) goto try_defsv; |
6606 | else { | |
17008668 FC |
6607 | const bool wantscalar = |
6608 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 6609 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
6610 | /* We have to permit globrefs even for the \$ proto, as |
6611 | *foo is indistinguishable from ${\*foo}, and the proto- | |
6612 | type permits the latter. */ | |
6613 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae | 6614 | wantscalar ? SVt_PVLV |
46bef06f FC |
6615 | : opnum == OP_LOCK || opnum == OP_UNDEF |
6616 | ? SVt_PVCV | |
efe889ae | 6617 | : SVt_PVHV |
17008668 | 6618 | ) |
c72a5629 FC |
6619 | ) |
6620 | DIE(aTHX_ | |
17008668 | 6621 | "Type of arg %d to &CORE::%s must be %s", |
46bef06f | 6622 | whicharg, PL_op_name[opnum], |
17008668 FC |
6623 | wantscalar |
6624 | ? "scalar reference" | |
46bef06f | 6625 | : opnum == OP_LOCK || opnum == OP_UNDEF |
efe889ae FC |
6626 | ? "reference to one of [$@%&*]" |
6627 | : "reference to one of [$@%*]" | |
c72a5629 FC |
6628 | ); |
6629 | PUSHs(SvRV(*svp)); | |
bea284c8 | 6630 | if (opnum == OP_UNDEF && SvRV(*svp) == (SV *)PL_defgv) { |
88bb468b | 6631 | /* Undo @_ localisation, so that sub exit does not undo |
04e686b8 | 6632 | part of our undeffing. */ |
bea284c8 | 6633 | S_maybe_unwind_defav(aTHX); |
88bb468b | 6634 | } |
17008668 | 6635 | } |
1efec5ed | 6636 | break; |
46e00a91 | 6637 | default: |
46e00a91 FC |
6638 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
6639 | } | |
6640 | oa = oa >> 4; | |
6641 | } | |
6642 | ||
deb8a388 FC |
6643 | RETURN; |
6644 | } | |
6645 | ||
a2232057 DM |
6646 | /* Implement CORE::keys(),values(),each(). |
6647 | * | |
6648 | * We won't know until run-time whether the arg is an array or hash, | |
6649 | * so this op calls | |
6650 | * | |
6651 | * pp_keys/pp_values/pp_each | |
6652 | * or | |
6653 | * pp_akeys/pp_avalues/pp_aeach | |
6654 | * | |
6655 | * as appropriate (or whatever pp function actually implements the OP_FOO | |
6656 | * functionality for each FOO). | |
6657 | */ | |
6658 | ||
88101882 FC |
6659 | PP(pp_avhvswitch) |
6660 | { | |
a73158aa | 6661 | dVAR; dSP; |
73665bc4 FC |
6662 | return PL_ppaddr[ |
6663 | (SvTYPE(TOPs) == SVt_PVAV ? OP_AEACH : OP_EACH) | |
e1e26374 | 6664 | + (PL_op->op_private & OPpAVHVSWITCH_MASK) |
73665bc4 | 6665 | ](aTHX); |
88101882 FC |
6666 | } |
6667 | ||
84ed0108 FC |
6668 | PP(pp_runcv) |
6669 | { | |
6670 | dSP; | |
6671 | CV *cv; | |
6672 | if (PL_op->op_private & OPpOFFBYONE) { | |
db4cf31d | 6673 | cv = find_runcv_where(FIND_RUNCV_level_eq, 1, NULL); |
84ed0108 FC |
6674 | } |
6675 | else cv = find_runcv(NULL); | |
e157a82b | 6676 | XPUSHs(CvEVAL(cv) ? &PL_sv_undef : sv_2mortal(newRV((SV *)cv))); |
84ed0108 FC |
6677 | RETURN; |
6678 | } | |
6679 | ||
05a34802 | 6680 | static void |
2331e434 | 6681 | S_localise_aelem_lval(pTHX_ AV * const av, SV * const keysv, |
05a34802 FC |
6682 | const bool can_preserve) |
6683 | { | |
2331e434 | 6684 | const SSize_t ix = SvIV(keysv); |
05a34802 FC |
6685 | if (can_preserve ? av_exists(av, ix) : TRUE) { |
6686 | SV ** const svp = av_fetch(av, ix, 1); | |
6687 | if (!svp || !*svp) | |
6688 | Perl_croak(aTHX_ PL_no_aelem, ix); | |
6689 | save_aelem(av, ix, svp); | |
6690 | } | |
6691 | else | |
6692 | SAVEADELETE(av, ix); | |
6693 | } | |
6694 | ||
5f94141d FC |
6695 | static void |
6696 | S_localise_helem_lval(pTHX_ HV * const hv, SV * const keysv, | |
6697 | const bool can_preserve) | |
6698 | { | |
6699 | if (can_preserve ? hv_exists_ent(hv, keysv, 0) : TRUE) { | |
6700 | HE * const he = hv_fetch_ent(hv, keysv, 1, 0); | |
6701 | SV ** const svp = he ? &HeVAL(he) : NULL; | |
6702 | if (!svp || !*svp) | |
6703 | Perl_croak(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
6704 | save_helem_flags(hv, keysv, svp, 0); | |
6705 | } | |
6706 | else | |
6707 | SAVEHDELETE(hv, keysv); | |
6708 | } | |
6709 | ||
9782ce69 FC |
6710 | static void |
6711 | S_localise_gv_slot(pTHX_ GV *gv, U8 type) | |
6712 | { | |
6713 | if (type == OPpLVREF_SV) { | |
6714 | save_pushptrptr(gv, SvREFCNT_inc_simple(GvSV(gv)), SAVEt_GVSV); | |
6715 | GvSV(gv) = 0; | |
6716 | } | |
6717 | else if (type == OPpLVREF_AV) | |
6718 | /* XXX Inefficient, as it creates a new AV, which we are | |
6719 | about to clobber. */ | |
6720 | save_ary(gv); | |
6721 | else { | |
6722 | assert(type == OPpLVREF_HV); | |
6723 | /* XXX Likewise inefficient. */ | |
6724 | save_hash(gv); | |
6725 | } | |
6726 | } | |
6727 | ||
6728 | ||
254da51f FC |
6729 | PP(pp_refassign) |
6730 | { | |
4fec8804 | 6731 | dSP; |
6102323a | 6732 | SV * const key = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
d8a875d9 | 6733 | SV * const left = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
4fec8804 | 6734 | dTOPss; |
3f114923 | 6735 | const char *bad = NULL; |
ac0da85a | 6736 | const U8 type = PL_op->op_private & OPpLVREF_TYPE; |
4fec8804 | 6737 | if (!SvROK(sv)) DIE(aTHX_ "Assigned value is not a reference"); |
ac0da85a | 6738 | switch (type) { |
3f114923 FC |
6739 | case OPpLVREF_SV: |
6740 | if (SvTYPE(SvRV(sv)) > SVt_PVLV) | |
6741 | bad = " SCALAR"; | |
6742 | break; | |
6743 | case OPpLVREF_AV: | |
6744 | if (SvTYPE(SvRV(sv)) != SVt_PVAV) | |
6745 | bad = "n ARRAY"; | |
6746 | break; | |
6747 | case OPpLVREF_HV: | |
6748 | if (SvTYPE(SvRV(sv)) != SVt_PVHV) | |
6749 | bad = " HASH"; | |
6750 | break; | |
6751 | case OPpLVREF_CV: | |
6752 | if (SvTYPE(SvRV(sv)) != SVt_PVCV) | |
6753 | bad = " CODE"; | |
6754 | } | |
6755 | if (bad) | |
1f8155a2 | 6756 | /* diag_listed_as: Assigned value is not %s reference */ |
3f114923 | 6757 | DIE(aTHX_ "Assigned value is not a%s reference", bad); |
b943805e JH |
6758 | { |
6759 | MAGIC *mg; | |
6760 | HV *stash; | |
d8a875d9 FC |
6761 | switch (left ? SvTYPE(left) : 0) { |
6762 | case 0: | |
cf5d2d91 FC |
6763 | { |
6764 | SV * const old = PAD_SV(ARGTARG); | |
d8a875d9 | 6765 | PAD_SETSV(ARGTARG, SvREFCNT_inc_NN(SvRV(sv))); |
cf5d2d91 | 6766 | SvREFCNT_dec(old); |
3ad7d304 FC |
6767 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpPAD_STATE)) |
6768 | == OPpLVAL_INTRO) | |
fc048fcf | 6769 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
d8a875d9 | 6770 | break; |
cf5d2d91 | 6771 | } |
d8a875d9 | 6772 | case SVt_PVGV: |
2a57afb1 | 6773 | if (PL_op->op_private & OPpLVAL_INTRO) { |
9782ce69 | 6774 | S_localise_gv_slot(aTHX_ (GV *)left, type); |
2a57afb1 | 6775 | } |
d8a875d9 FC |
6776 | gv_setref(left, sv); |
6777 | SvSETMAGIC(left); | |
6102323a FC |
6778 | break; |
6779 | case SVt_PVAV: | |
69a23520 | 6780 | assert(key); |
40d2b828 | 6781 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
2331e434 | 6782 | S_localise_aelem_lval(aTHX_ (AV *)left, key, |
05a34802 | 6783 | SvCANEXISTDELETE(left)); |
40d2b828 | 6784 | } |
6102323a FC |
6785 | av_store((AV *)left, SvIV(key), SvREFCNT_inc_simple_NN(SvRV(sv))); |
6786 | break; | |
5f94141d | 6787 | case SVt_PVHV: |
69a23520 JH |
6788 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
6789 | assert(key); | |
5f94141d FC |
6790 | S_localise_helem_lval(aTHX_ (HV *)left, key, |
6791 | SvCANEXISTDELETE(left)); | |
69a23520 | 6792 | } |
7fcb36d5 | 6793 | (void)hv_store_ent((HV *)left, key, SvREFCNT_inc_simple_NN(SvRV(sv)), 0); |
d8a875d9 | 6794 | } |
4fec8804 FC |
6795 | if (PL_op->op_flags & OPf_MOD) |
6796 | SETs(sv_2mortal(newSVsv(sv))); | |
6797 | /* XXX else can weak references go stale before they are read, e.g., | |
6798 | in leavesub? */ | |
6799 | RETURN; | |
b943805e | 6800 | } |
254da51f FC |
6801 | } |
6802 | ||
4c5bab50 FC |
6803 | PP(pp_lvref) |
6804 | { | |
26a50d99 FC |
6805 | dSP; |
6806 | SV * const ret = sv_2mortal(newSV_type(SVt_PVMG)); | |
6102323a | 6807 | SV * const elem = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
2a57afb1 | 6808 | SV * const arg = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
9782ce69 FC |
6809 | MAGIC * const mg = sv_magicext(ret, arg, PERL_MAGIC_lvref, |
6810 | &PL_vtbl_lvref, (char *)elem, | |
23270f96 | 6811 | elem ? HEf_SVKEY : (I32)ARGTARG); |
9782ce69 | 6812 | mg->mg_private = PL_op->op_private; |
d39c26a6 FC |
6813 | if (PL_op->op_private & OPpLVREF_ITER) |
6814 | mg->mg_flags |= MGf_PERSIST; | |
9846cd95 | 6815 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
40d2b828 | 6816 | if (elem) { |
38bb0011 JH |
6817 | MAGIC *mg; |
6818 | HV *stash; | |
6819 | assert(arg); | |
6820 | { | |
6821 | const bool can_preserve = SvCANEXISTDELETE(arg); | |
6822 | if (SvTYPE(arg) == SVt_PVAV) | |
6823 | S_localise_aelem_lval(aTHX_ (AV *)arg, elem, can_preserve); | |
6824 | else | |
6825 | S_localise_helem_lval(aTHX_ (HV *)arg, elem, can_preserve); | |
6826 | } | |
40d2b828 FC |
6827 | } |
6828 | else if (arg) { | |
a8e41ef4 | 6829 | S_localise_gv_slot(aTHX_ (GV *)arg, |
9782ce69 | 6830 | PL_op->op_private & OPpLVREF_TYPE); |
2a57afb1 | 6831 | } |
3ad7d304 | 6832 | else if (!(PL_op->op_private & OPpPAD_STATE)) |
c146a62a | 6833 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
1199b01a | 6834 | } |
c146a62a FC |
6835 | XPUSHs(ret); |
6836 | RETURN; | |
4c5bab50 | 6837 | } |
84ed0108 | 6838 | |
16b99412 FC |
6839 | PP(pp_lvrefslice) |
6840 | { | |
a95dad8a | 6841 | dSP; dMARK; |
0ca7b7f7 FC |
6842 | AV * const av = (AV *)POPs; |
6843 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
6844 | bool can_preserve = FALSE; | |
6845 | ||
9846cd95 | 6846 | if (UNLIKELY(localizing)) { |
0ca7b7f7 FC |
6847 | MAGIC *mg; |
6848 | HV *stash; | |
6849 | SV **svp; | |
6850 | ||
6851 | can_preserve = SvCANEXISTDELETE(av); | |
6852 | ||
6853 | if (SvTYPE(av) == SVt_PVAV) { | |
6854 | SSize_t max = -1; | |
6855 | ||
6856 | for (svp = MARK + 1; svp <= SP; svp++) { | |
6857 | const SSize_t elem = SvIV(*svp); | |
6858 | if (elem > max) | |
6859 | max = elem; | |
6860 | } | |
6861 | if (max > AvMAX(av)) | |
6862 | av_extend(av, max); | |
6863 | } | |
6864 | } | |
6865 | ||
6866 | while (++MARK <= SP) { | |
6867 | SV * const elemsv = *MARK; | |
b97fe865 DM |
6868 | if (UNLIKELY(localizing)) { |
6869 | if (SvTYPE(av) == SVt_PVAV) | |
6870 | S_localise_aelem_lval(aTHX_ av, elemsv, can_preserve); | |
6871 | else | |
6872 | S_localise_helem_lval(aTHX_ (HV *)av, elemsv, can_preserve); | |
6873 | } | |
0ca7b7f7 FC |
6874 | *MARK = sv_2mortal(newSV_type(SVt_PVMG)); |
6875 | sv_magic(*MARK,(SV *)av,PERL_MAGIC_lvref,(char *)elemsv,HEf_SVKEY); | |
6876 | } | |
6877 | RETURN; | |
16b99412 FC |
6878 | } |
6879 | ||
2882b3ff FC |
6880 | PP(pp_lvavref) |
6881 | { | |
bdaf10a5 FC |
6882 | if (PL_op->op_flags & OPf_STACKED) |
6883 | Perl_pp_rv2av(aTHX); | |
6884 | else | |
6885 | Perl_pp_padav(aTHX); | |
6886 | { | |
6887 | dSP; | |
6888 | dTOPss; | |
6889 | SETs(0); /* special alias marker that aassign recognises */ | |
6890 | XPUSHs(sv); | |
6891 | RETURN; | |
6892 | } | |
2882b3ff FC |
6893 | } |
6894 | ||
b77472f9 FC |
6895 | PP(pp_anonconst) |
6896 | { | |
6897 | dSP; | |
6898 | dTOPss; | |
6899 | SETs(sv_2mortal((SV *)newCONSTSUB(SvTYPE(CopSTASH(PL_curcop))==SVt_PVHV | |
6900 | ? CopSTASH(PL_curcop) | |
6901 | : NULL, | |
6902 | NULL, SvREFCNT_inc_simple_NN(sv)))); | |
6903 | RETURN; | |
6904 | } | |
6905 | ||
4fa06845 DM |
6906 | |
6907 | /* process one subroutine argument - typically when the sub has a signature: | |
6908 | * introduce PL_curpad[op_targ] and assign to it the value | |
6909 | * for $: (OPf_STACKED ? *sp : $_[N]) | |
6910 | * for @/%: @_[N..$#_] | |
6911 | * | |
a8e41ef4 | 6912 | * It's equivalent to |
4fa06845 DM |
6913 | * my $foo = $_[N]; |
6914 | * or | |
6915 | * my $foo = (value-on-stack) | |
6916 | * or | |
6917 | * my @foo = @_[N..$#_] | |
6918 | * etc | |
4fa06845 DM |
6919 | */ |
6920 | ||
6921 | PP(pp_argelem) | |
6922 | { | |
6923 | dTARG; | |
6924 | SV *val; | |
6925 | SV ** padentry; | |
6926 | OP *o = PL_op; | |
6927 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6928 | IV ix = PTR2IV(cUNOP_AUXo->op_aux); |
4fa06845 | 6929 | IV argc; |
4fa06845 DM |
6930 | |
6931 | /* do 'my $var, @var or %var' action */ | |
6932 | padentry = &(PAD_SVl(o->op_targ)); | |
6933 | save_clearsv(padentry); | |
6934 | targ = *padentry; | |
6935 | ||
6936 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_SV) { | |
6937 | if (o->op_flags & OPf_STACKED) { | |
6938 | dSP; | |
6939 | val = POPs; | |
6940 | PUTBACK; | |
6941 | } | |
6942 | else { | |
f6ca42c7 | 6943 | SV **svp; |
4fa06845 | 6944 | /* should already have been checked */ |
f6ca42c7 | 6945 | assert(ix >= 0); |
6daeaaa3 DM |
6946 | #if IVSIZE > PTRSIZE |
6947 | assert(ix <= SSize_t_MAX); | |
6948 | #endif | |
f6ca42c7 DM |
6949 | |
6950 | svp = av_fetch(defav, ix, FALSE); | |
6951 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 DM |
6952 | } |
6953 | ||
6954 | /* $var = $val */ | |
6955 | ||
6956 | /* cargo-culted from pp_sassign */ | |
6957 | assert(TAINTING_get || !TAINT_get); | |
6958 | if (UNLIKELY(TAINT_get) && !SvTAINTED(val)) | |
6959 | TAINT_NOT; | |
6960 | ||
f6ca42c7 | 6961 | SvSetMagicSV(targ, val); |
4fa06845 DM |
6962 | return o->op_next; |
6963 | } | |
6964 | ||
6965 | /* must be AV or HV */ | |
6966 | ||
6967 | assert(!(o->op_flags & OPf_STACKED)); | |
f6ca42c7 | 6968 | argc = ((IV)AvFILL(defav) + 1) - ix; |
4fa06845 DM |
6969 | |
6970 | /* This is a copy of the relevant parts of pp_aassign(). | |
4fa06845 DM |
6971 | */ |
6972 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_AV) { | |
f6ca42c7 DM |
6973 | IV i; |
6974 | ||
6975 | if (AvFILL((AV*)targ) > -1) { | |
6976 | /* target should usually be empty. If we get get | |
6977 | * here, someone's been doing some weird closure tricks. | |
6978 | * Make a copy of all args before clearing the array, | |
6979 | * to avoid the equivalent of @a = ($a[0]) prematurely freeing | |
6980 | * elements. See similar code in pp_aassign. | |
6981 | */ | |
6982 | for (i = 0; i < argc; i++) { | |
6983 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
6984 | SV *newsv = newSV(0); | |
6985 | sv_setsv_flags(newsv, | |
6986 | svp ? *svp : &PL_sv_undef, | |
6987 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
6988 | if (!av_store(defav, ix + i, newsv)) | |
6989 | SvREFCNT_dec_NN(newsv); | |
6990 | } | |
6991 | av_clear((AV*)targ); | |
6992 | } | |
6993 | ||
6994 | if (argc <= 0) | |
6995 | return o->op_next; | |
4fa06845 | 6996 | |
4fa06845 DM |
6997 | av_extend((AV*)targ, argc); |
6998 | ||
f6ca42c7 | 6999 | i = 0; |
4fa06845 DM |
7000 | while (argc--) { |
7001 | SV *tmpsv; | |
f6ca42c7 DM |
7002 | SV **svp = av_fetch(defav, ix + i, FALSE); |
7003 | SV *val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 7004 | tmpsv = newSV(0); |
f6ca42c7 | 7005 | sv_setsv(tmpsv, val); |
4fa06845 DM |
7006 | av_store((AV*)targ, i++, tmpsv); |
7007 | TAINT_NOT; | |
7008 | } | |
7009 | ||
7010 | } | |
7011 | else { | |
f6ca42c7 DM |
7012 | IV i; |
7013 | ||
4fa06845 DM |
7014 | assert((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_HV); |
7015 | ||
f6ca42c7 DM |
7016 | if (SvRMAGICAL(targ) || HvUSEDKEYS((HV*)targ)) { |
7017 | /* see "target should usually be empty" comment above */ | |
7018 | for (i = 0; i < argc; i++) { | |
7019 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
7020 | SV *newsv = newSV(0); | |
7021 | sv_setsv_flags(newsv, | |
7022 | svp ? *svp : &PL_sv_undef, | |
7023 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
7024 | if (!av_store(defav, ix + i, newsv)) | |
7025 | SvREFCNT_dec_NN(newsv); | |
7026 | } | |
7027 | hv_clear((HV*)targ); | |
7028 | } | |
7029 | ||
7030 | if (argc <= 0) | |
7031 | return o->op_next; | |
4fa06845 | 7032 | assert(argc % 2 == 0); |
4fa06845 | 7033 | |
f6ca42c7 | 7034 | i = 0; |
4fa06845 DM |
7035 | while (argc) { |
7036 | SV *tmpsv; | |
f6ca42c7 DM |
7037 | SV **svp; |
7038 | SV *key; | |
7039 | SV *val; | |
7040 | ||
7041 | svp = av_fetch(defav, ix + i++, FALSE); | |
7042 | key = svp ? *svp : &PL_sv_undef; | |
7043 | svp = av_fetch(defav, ix + i++, FALSE); | |
7044 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 7045 | |
4fa06845 DM |
7046 | argc -= 2; |
7047 | if (UNLIKELY(SvGMAGICAL(key))) | |
7048 | key = sv_mortalcopy(key); | |
7049 | tmpsv = newSV(0); | |
7050 | sv_setsv(tmpsv, val); | |
7051 | hv_store_ent((HV*)targ, key, tmpsv, 0); | |
7052 | TAINT_NOT; | |
7053 | } | |
7054 | } | |
7055 | ||
7056 | return o->op_next; | |
7057 | } | |
7058 | ||
7059 | /* Handle a default value for one subroutine argument (typically as part | |
7060 | * of a subroutine signature). | |
7061 | * It's equivalent to | |
7062 | * @_ > op_targ ? $_[op_targ] : result_of(op_other) | |
7063 | * | |
7064 | * Intended to be used where op_next is an OP_ARGELEM | |
7065 | * | |
7066 | * We abuse the op_targ field slightly: it's an index into @_ rather than | |
7067 | * into PL_curpad. | |
7068 | */ | |
7069 | ||
7070 | PP(pp_argdefelem) | |
7071 | { | |
7072 | OP * const o = PL_op; | |
7073 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 7074 | IV ix = (IV)o->op_targ; |
4fa06845 | 7075 | |
f6ca42c7 | 7076 | assert(ix >= 0); |
6daeaaa3 DM |
7077 | #if IVSIZE > PTRSIZE |
7078 | assert(ix <= SSize_t_MAX); | |
7079 | #endif | |
f6ca42c7 DM |
7080 | |
7081 | if (AvFILL(defav) >= ix) { | |
4fa06845 | 7082 | dSP; |
f6ca42c7 DM |
7083 | SV **svp = av_fetch(defav, ix, FALSE); |
7084 | SV *val = svp ? *svp : &PL_sv_undef; | |
7085 | XPUSHs(val); | |
4fa06845 DM |
7086 | RETURN; |
7087 | } | |
7088 | return cLOGOPo->op_other; | |
7089 | } | |
7090 | ||
7091 | ||
ac7609e4 AC |
7092 | static SV * |
7093 | S_find_runcv_name(void) | |
7094 | { | |
7095 | dTHX; | |
7096 | CV *cv; | |
7097 | GV *gv; | |
7098 | SV *sv; | |
7099 | ||
7100 | cv = find_runcv(0); | |
7101 | if (!cv) | |
7102 | return &PL_sv_no; | |
7103 | ||
7104 | gv = CvGV(cv); | |
7105 | if (!gv) | |
7106 | return &PL_sv_no; | |
7107 | ||
7108 | sv = sv_2mortal(newSV(0)); | |
7109 | gv_fullname4(sv, gv, NULL, TRUE); | |
7110 | return sv; | |
7111 | } | |
4fa06845 | 7112 | |
f417cfa9 | 7113 | /* Check a sub's arguments - i.e. that it has the correct number of args |
4fa06845 DM |
7114 | * (and anything else we might think of in future). Typically used with |
7115 | * signatured subs. | |
7116 | */ | |
7117 | ||
7118 | PP(pp_argcheck) | |
7119 | { | |
7120 | OP * const o = PL_op; | |
f417cfa9 | 7121 | struct op_argcheck_aux *aux = (struct op_argcheck_aux *)cUNOP_AUXo->op_aux; |
e6158756 DM |
7122 | UV params = aux->params; |
7123 | UV opt_params = aux->opt_params; | |
f417cfa9 | 7124 | char slurpy = aux->slurpy; |
4fa06845 | 7125 | AV *defav = GvAV(PL_defgv); /* @_ */ |
6daeaaa3 | 7126 | IV argc; |
4fa06845 DM |
7127 | bool too_few; |
7128 | ||
7129 | assert(!SvMAGICAL(defav)); | |
6daeaaa3 | 7130 | argc = (AvFILLp(defav) + 1); |
4fa06845 DM |
7131 | too_few = (argc < (params - opt_params)); |
7132 | ||
7133 | if (UNLIKELY(too_few || (!slurpy && argc > params))) | |
ac7609e4 AC |
7134 | /* diag_listed_as: Too few arguments for subroutine '%s' */ |
7135 | /* diag_listed_as: Too many arguments for subroutine '%s' */ | |
7136 | Perl_croak_caller("Too %s arguments for subroutine '%" SVf "'", | |
7137 | too_few ? "few" : "many", S_find_runcv_name()); | |
4fa06845 DM |
7138 | |
7139 | if (UNLIKELY(slurpy == '%' && argc > params && (argc - params) % 2)) | |
ac7609e4 AC |
7140 | /* diag_listed_as: Odd name/value argument for subroutine '%s' */ |
7141 | Perl_croak_caller("Odd name/value argument for subroutine '%" SVf "'", | |
7142 | S_find_runcv_name()); | |
4fa06845 DM |
7143 | |
7144 | return NORMAL; | |
7145 | } | |
7146 | ||
e609e586 | 7147 | /* |
14d04a33 | 7148 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 7149 | */ |