Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* pp.c |
79072805 | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
79072805 | 5 | * |
a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
79072805 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
13 | * to discover, and no knowing what you'll find round a corner. | |
14 | * And Elves, sir!' --Samwise Gamgee | |
15 | * | |
16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
a0d0e21e | 17 | */ |
79072805 | 18 | |
166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
20 | * opcodes that make up a perl program. A typical pp function expects to | |
21 | * find its arguments on the stack, and usually pushes its results onto | |
22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
23 | * a pointer to the relevant pp_foo() function. | |
24 | */ | |
25 | ||
79072805 | 26 | #include "EXTERN.h" |
864dbfa3 | 27 | #define PERL_IN_PP_C |
79072805 | 28 | #include "perl.h" |
77bc9082 | 29 | #include "keywords.h" |
79072805 | 30 | |
a4af207c | 31 | #include "reentr.h" |
685289b5 | 32 | #include "regcharclass.h" |
a4af207c | 33 | |
a78bc3c6 KW |
34 | static const STRLEN small_mu_len = sizeof(GREEK_SMALL_LETTER_MU_UTF8) - 1; |
35 | static const STRLEN capital_iota_len = sizeof(GREEK_CAPITAL_LETTER_IOTA_UTF8) - 1; | |
36 | ||
13017935 SM |
37 | /* variations on pp_null */ |
38 | ||
93a17b20 LW |
39 | PP(pp_stub) |
40 | { | |
39644a26 | 41 | dSP; |
54310121 | 42 | if (GIMME_V == G_SCALAR) |
3280af22 | 43 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
44 | RETURN; |
45 | } | |
46 | ||
79072805 LW |
47 | /* Pushy stuff. */ |
48 | ||
a46a7b6e | 49 | |
93a17b20 | 50 | |
ac217057 FC |
51 | PP(pp_padcv) |
52 | { | |
20b7effb | 53 | dSP; dTARGET; |
97b03d64 FC |
54 | assert(SvTYPE(TARG) == SVt_PVCV); |
55 | XPUSHs(TARG); | |
56 | RETURN; | |
ac217057 FC |
57 | } |
58 | ||
ecf9c8b7 FC |
59 | PP(pp_introcv) |
60 | { | |
20b7effb | 61 | dTARGET; |
6d5c2147 FC |
62 | SvPADSTALE_off(TARG); |
63 | return NORMAL; | |
ecf9c8b7 FC |
64 | } |
65 | ||
13f89586 FC |
66 | PP(pp_clonecv) |
67 | { | |
20b7effb | 68 | dTARGET; |
0f94cb1f FC |
69 | CV * const protocv = PadnamePROTOCV( |
70 | PadlistNAMESARRAY(CvPADLIST(find_runcv(NULL)))[ARGTARG] | |
71 | ); | |
6d5c2147 | 72 | assert(SvTYPE(TARG) == SVt_PVCV); |
0f94cb1f FC |
73 | assert(protocv); |
74 | if (CvISXSUB(protocv)) { /* constant */ | |
6d5c2147 | 75 | /* XXX Should we clone it here? */ |
6d5c2147 FC |
76 | /* If this changes to use SAVECLEARSV, we can move the SAVECLEARSV |
77 | to introcv and remove the SvPADSTALE_off. */ | |
78 | SAVEPADSVANDMORTALIZE(ARGTARG); | |
0f94cb1f | 79 | PAD_SVl(ARGTARG) = SvREFCNT_inc_simple_NN(protocv); |
6d5c2147 FC |
80 | } |
81 | else { | |
0f94cb1f FC |
82 | if (CvROOT(protocv)) { |
83 | assert(CvCLONE(protocv)); | |
84 | assert(!CvCLONED(protocv)); | |
6d5c2147 | 85 | } |
0f94cb1f | 86 | cv_clone_into(protocv,(CV *)TARG); |
6d5c2147 FC |
87 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
88 | } | |
89 | return NORMAL; | |
13f89586 FC |
90 | } |
91 | ||
79072805 LW |
92 | /* Translations. */ |
93 | ||
6f7909da FC |
94 | /* In some cases this function inspects PL_op. If this function is called |
95 | for new op types, more bool parameters may need to be added in place of | |
96 | the checks. | |
97 | ||
98 | When noinit is true, the absence of a gv will cause a retval of undef. | |
99 | This is unrelated to the cv-to-gv assignment case. | |
6f7909da FC |
100 | */ |
101 | ||
102 | static SV * | |
103 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
104 | const bool noinit) | |
105 | { | |
f64c9ac5 | 106 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 107 | if (SvROK(sv)) { |
93d7320b DM |
108 | if (SvAMAGIC(sv)) { |
109 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 110 | } |
e4a1664f | 111 | wasref: |
ed6116ce | 112 | sv = SvRV(sv); |
b1dadf13 | 113 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 114 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
885f468a | 115 | gv_init(gv, 0, "__ANONIO__", 10, 0); |
a45c7426 | 116 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 117 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 118 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 119 | } |
81d52ecd JH |
120 | else if (!isGV_with_GP(sv)) { |
121 | Perl_die(aTHX_ "Not a GLOB reference"); | |
122 | } | |
79072805 LW |
123 | } |
124 | else { | |
6e592b3a | 125 | if (!isGV_with_GP(sv)) { |
f132ae69 | 126 | if (!SvOK(sv)) { |
b13b2135 | 127 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 128 | * NI-S 1999/05/07 |
b13b2135 | 129 | */ |
f132ae69 | 130 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 131 | GV *gv; |
db9848c8 | 132 | HV *stash; |
ce74145d | 133 | if (SvREADONLY(sv)) |
cb077ed2 | 134 | Perl_croak_no_modify(); |
db9848c8 Z |
135 | gv = MUTABLE_GV(newSV(0)); |
136 | stash = CopSTASH(PL_curcop); | |
137 | if (SvTYPE(stash) != SVt_PVHV) stash = NULL; | |
2c8ac474 | 138 | if (cUNOP->op_targ) { |
0bd48802 | 139 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
94e7eb6f | 140 | gv_init_sv(gv, stash, namesv, 0); |
2c8ac474 GS |
141 | } |
142 | else { | |
db9848c8 | 143 | gv_init_pv(gv, stash, "__ANONIO__", 0); |
1d8d4d2a | 144 | } |
43230e26 | 145 | prepare_SV_for_RV(sv); |
ad64d0ec | 146 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 147 | SvROK_on(sv); |
1d8d4d2a | 148 | SvSETMAGIC(sv); |
853846ea | 149 | goto wasref; |
2c8ac474 | 150 | } |
81d52ecd JH |
151 | if (PL_op->op_flags & OPf_REF || strict) { |
152 | Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
153 | } | |
599cee73 | 154 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 155 | report_uninit(sv); |
6f7909da | 156 | return &PL_sv_undef; |
a0d0e21e | 157 | } |
6f7909da | 158 | if (noinit) |
35cd451c | 159 | { |
77cb3b01 FC |
160 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
161 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 162 | )))) |
6f7909da | 163 | return &PL_sv_undef; |
35cd451c GS |
164 | } |
165 | else { | |
81d52ecd JH |
166 | if (strict) { |
167 | Perl_die(aTHX_ | |
fedf30e1 | 168 | PL_no_symref_sv, |
81d52ecd JH |
169 | sv, |
170 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), | |
171 | "a symbol" | |
172 | ); | |
173 | } | |
e26df76a NC |
174 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
175 | == OPpDONT_INIT_GV) { | |
176 | /* We are the target of a coderef assignment. Return | |
177 | the scalar unchanged, and let pp_sasssign deal with | |
178 | things. */ | |
6f7909da | 179 | return sv; |
e26df76a | 180 | } |
77cb3b01 | 181 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 182 | } |
2acc3314 | 183 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 184 | SvFAKE_off(sv); |
93a17b20 | 185 | } |
79072805 | 186 | } |
8dc99089 | 187 | if (SvFAKE(sv) && !(PL_op->op_private & OPpALLOW_FAKE)) { |
2acc3314 | 188 | SV *newsv = sv_newmortal(); |
5cf4b255 | 189 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 190 | SvFAKE_off(newsv); |
d8906c05 | 191 | sv = newsv; |
2acc3314 | 192 | } |
6f7909da FC |
193 | return sv; |
194 | } | |
195 | ||
196 | PP(pp_rv2gv) | |
197 | { | |
20b7effb | 198 | dSP; dTOPss; |
6f7909da FC |
199 | |
200 | sv = S_rv2gv(aTHX_ | |
201 | sv, PL_op->op_private & OPpDEREF, | |
202 | PL_op->op_private & HINT_STRICT_REFS, | |
203 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
204 | || PL_op->op_type == OP_READLINE | |
205 | ); | |
d8906c05 FC |
206 | if (PL_op->op_private & OPpLVAL_INTRO) |
207 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
208 | SETs(sv); | |
79072805 LW |
209 | RETURN; |
210 | } | |
211 | ||
dc3c76f8 NC |
212 | /* Helper function for pp_rv2sv and pp_rv2av */ |
213 | GV * | |
fe9845cc RB |
214 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
215 | const svtype type, SV ***spp) | |
dc3c76f8 | 216 | { |
dc3c76f8 NC |
217 | GV *gv; |
218 | ||
7918f24d NC |
219 | PERL_ARGS_ASSERT_SOFTREF2XV; |
220 | ||
dc3c76f8 NC |
221 | if (PL_op->op_private & HINT_STRICT_REFS) { |
222 | if (SvOK(sv)) | |
fedf30e1 | 223 | Perl_die(aTHX_ PL_no_symref_sv, sv, |
bf3d870f | 224 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), what); |
dc3c76f8 NC |
225 | else |
226 | Perl_die(aTHX_ PL_no_usym, what); | |
227 | } | |
228 | if (!SvOK(sv)) { | |
fd1d9b5c | 229 | if ( |
c8fe3bdf | 230 | PL_op->op_flags & OPf_REF |
fd1d9b5c | 231 | ) |
dc3c76f8 NC |
232 | Perl_die(aTHX_ PL_no_usym, what); |
233 | if (ckWARN(WARN_UNINITIALIZED)) | |
234 | report_uninit(sv); | |
235 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
236 | (*spp)--; | |
237 | return NULL; | |
238 | } | |
239 | **spp = &PL_sv_undef; | |
240 | return NULL; | |
241 | } | |
242 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
243 | !(PL_op->op_flags & OPf_MOD)) | |
244 | { | |
77cb3b01 | 245 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
246 | { |
247 | **spp = &PL_sv_undef; | |
248 | return NULL; | |
249 | } | |
250 | } | |
251 | else { | |
77cb3b01 | 252 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
253 | } |
254 | return gv; | |
255 | } | |
256 | ||
79072805 LW |
257 | PP(pp_rv2sv) |
258 | { | |
20b7effb | 259 | dSP; dTOPss; |
c445ea15 | 260 | GV *gv = NULL; |
79072805 | 261 | |
9026059d | 262 | SvGETMAGIC(sv); |
ed6116ce | 263 | if (SvROK(sv)) { |
93d7320b DM |
264 | if (SvAMAGIC(sv)) { |
265 | sv = amagic_deref_call(sv, to_sv_amg); | |
93d7320b | 266 | } |
f5284f61 | 267 | |
ed6116ce | 268 | sv = SvRV(sv); |
69f00f67 | 269 | if (SvTYPE(sv) >= SVt_PVAV) |
cea2e8a9 | 270 | DIE(aTHX_ "Not a SCALAR reference"); |
79072805 LW |
271 | } |
272 | else { | |
159b6efe | 273 | gv = MUTABLE_GV(sv); |
748a9306 | 274 | |
6e592b3a | 275 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
276 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
277 | if (!gv) | |
278 | RETURN; | |
463ee0b2 | 279 | } |
29c711a3 | 280 | sv = GvSVn(gv); |
a0d0e21e | 281 | } |
533c011a | 282 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
283 | if (PL_op->op_private & OPpLVAL_INTRO) { |
284 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 285 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
286 | else if (gv) |
287 | sv = save_scalar(gv); | |
288 | else | |
f1f66076 | 289 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 290 | } |
533c011a | 291 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 292 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 293 | } |
655f5b26 | 294 | SPAGAIN; /* in case chasing soft refs reallocated the stack */ |
a0d0e21e | 295 | SETs(sv); |
79072805 LW |
296 | RETURN; |
297 | } | |
298 | ||
299 | PP(pp_av2arylen) | |
300 | { | |
20b7effb | 301 | dSP; |
502c6561 | 302 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
303 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
304 | if (lvalue) { | |
8160c8f5 DM |
305 | SV ** const svp = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); |
306 | if (!*svp) { | |
307 | *svp = newSV_type(SVt_PVMG); | |
308 | sv_magic(*svp, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
02d85cc3 | 309 | } |
8160c8f5 | 310 | SETs(*svp); |
02d85cc3 | 311 | } else { |
e1dccc0d | 312 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 313 | } |
79072805 LW |
314 | RETURN; |
315 | } | |
316 | ||
a0d0e21e LW |
317 | PP(pp_pos) |
318 | { | |
27a8dde8 | 319 | dSP; dTOPss; |
8ec5e241 | 320 | |
78f9721b | 321 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
d14578b8 | 322 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV));/* Not TARG RT#67838 */ |
16eb5365 FC |
323 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); |
324 | LvTYPE(ret) = '.'; | |
325 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
27a8dde8 | 326 | SETs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
327 | } |
328 | else { | |
96c2a8ff | 329 | const MAGIC * const mg = mg_find_mglob(sv); |
6174b39a | 330 | if (mg && mg->mg_len != -1) { |
6174b39a | 331 | STRLEN i = mg->mg_len; |
7b394f12 DM |
332 | if (PL_op->op_private & OPpTRUEBOOL) |
333 | SETs(i ? &PL_sv_yes : &PL_sv_zero); | |
334 | else { | |
335 | dTARGET; | |
336 | if (mg->mg_flags & MGf_BYTES && DO_UTF8(sv)) | |
337 | i = sv_pos_b2u_flags(sv, i, SV_GMAGIC|SV_CONST_RETURN); | |
338 | SETu(i); | |
339 | } | |
27a8dde8 | 340 | return NORMAL; |
a0d0e21e | 341 | } |
27a8dde8 | 342 | SETs(&PL_sv_undef); |
a0d0e21e | 343 | } |
27a8dde8 | 344 | return NORMAL; |
a0d0e21e LW |
345 | } |
346 | ||
79072805 LW |
347 | PP(pp_rv2cv) |
348 | { | |
20b7effb | 349 | dSP; |
79072805 | 350 | GV *gv; |
1eced8f8 | 351 | HV *stash_unused; |
c445ea15 | 352 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 353 | ? GV_ADDMG |
d14578b8 KW |
354 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) |
355 | == OPpMAY_RETURN_CONSTANT) | |
c445ea15 AL |
356 | ? GV_ADD|GV_NOEXPAND |
357 | : GV_ADD; | |
4633a7c4 LW |
358 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
359 | /* (But not in defined().) */ | |
e26df76a | 360 | |
1eced8f8 | 361 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
5a20ba3d | 362 | if (cv) NOOP; |
e26df76a | 363 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
2eaf799e FC |
364 | cv = SvTYPE(SvRV(gv)) == SVt_PVCV |
365 | ? MUTABLE_CV(SvRV(gv)) | |
366 | : MUTABLE_CV(gv); | |
e26df76a | 367 | } |
07055b4c | 368 | else |
ea726b52 | 369 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 370 | SETs(MUTABLE_SV(cv)); |
3d79e3ee | 371 | return NORMAL; |
79072805 LW |
372 | } |
373 | ||
c07a80fd | 374 | PP(pp_prototype) |
375 | { | |
20b7effb | 376 | dSP; |
c07a80fd | 377 | CV *cv; |
378 | HV *stash; | |
379 | GV *gv; | |
fabdb6c0 | 380 | SV *ret = &PL_sv_undef; |
c07a80fd | 381 | |
6954f42f | 382 | if (SvGMAGICAL(TOPs)) SETs(sv_mortalcopy(TOPs)); |
b6c543e3 | 383 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 384 | const char * s = SvPVX_const(TOPs); |
0f12654f | 385 | if (memBEGINs(s, SvCUR(TOPs), "CORE::")) { |
be1b855b | 386 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
a96df643 | 387 | if (!code) |
147e3846 | 388 | DIE(aTHX_ "Can't find an opnumber for \"%" UTF8f "\"", |
b17a0679 | 389 | UTF8fARG(SvFLAGS(TOPs) & SVf_UTF8, SvCUR(TOPs)-6, s+6)); |
4e338c21 | 390 | { |
b66130dd FC |
391 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); |
392 | if (sv) ret = sv; | |
393 | } | |
b8c38f0a | 394 | goto set; |
b6c543e3 IZ |
395 | } |
396 | } | |
f2c0649b | 397 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 398 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
399 | ret = newSVpvn_flags( |
400 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
401 | ); | |
b6c543e3 | 402 | set: |
c07a80fd | 403 | SETs(ret); |
404 | RETURN; | |
405 | } | |
406 | ||
a0d0e21e LW |
407 | PP(pp_anoncode) |
408 | { | |
20b7effb | 409 | dSP; |
ea726b52 | 410 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 411 | if (CvCLONE(cv)) |
ad64d0ec | 412 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 413 | EXTEND(SP,1); |
ad64d0ec | 414 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
415 | RETURN; |
416 | } | |
417 | ||
418 | PP(pp_srefgen) | |
79072805 | 419 | { |
20b7effb | 420 | dSP; |
71be2cbc | 421 | *SP = refto(*SP); |
3ed34c76 | 422 | return NORMAL; |
8ec5e241 | 423 | } |
a0d0e21e LW |
424 | |
425 | PP(pp_refgen) | |
426 | { | |
20b7effb | 427 | dSP; dMARK; |
82334630 | 428 | if (GIMME_V != G_ARRAY) { |
5f0b1d4e GS |
429 | if (++MARK <= SP) |
430 | *MARK = *SP; | |
431 | else | |
1d51ab6c FC |
432 | { |
433 | MEXTEND(SP, 1); | |
3280af22 | 434 | *MARK = &PL_sv_undef; |
1d51ab6c | 435 | } |
5f0b1d4e GS |
436 | *MARK = refto(*MARK); |
437 | SP = MARK; | |
438 | RETURN; | |
a0d0e21e | 439 | } |
bbce6d69 | 440 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 441 | while (++MARK <= SP) |
442 | *MARK = refto(*MARK); | |
a0d0e21e | 443 | RETURN; |
79072805 LW |
444 | } |
445 | ||
76e3520e | 446 | STATIC SV* |
cea2e8a9 | 447 | S_refto(pTHX_ SV *sv) |
71be2cbc | 448 | { |
449 | SV* rv; | |
450 | ||
7918f24d NC |
451 | PERL_ARGS_ASSERT_REFTO; |
452 | ||
71be2cbc | 453 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
454 | if (LvTARGLEN(sv)) | |
68dc0745 | 455 | vivify_defelem(sv); |
456 | if (!(sv = LvTARG(sv))) | |
3280af22 | 457 | sv = &PL_sv_undef; |
0dd88869 | 458 | else |
b37c2d43 | 459 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 460 | } |
d8b46c1b | 461 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
462 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
463 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 464 | SvTEMP_off(sv); |
b37c2d43 | 465 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 466 | } |
60779a30 | 467 | else if (SvPADTMP(sv)) { |
f2933f5f | 468 | sv = newSVsv(sv); |
60779a30 | 469 | } |
1f1dcfb5 FC |
470 | else if (UNLIKELY(SvSMAGICAL(sv) && mg_find(sv, PERL_MAGIC_nonelem))) |
471 | sv_unmagic(SvREFCNT_inc_simple_NN(sv), PERL_MAGIC_nonelem); | |
71be2cbc | 472 | else { |
473 | SvTEMP_off(sv); | |
b37c2d43 | 474 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 475 | } |
476 | rv = sv_newmortal(); | |
4df7f6af | 477 | sv_upgrade(rv, SVt_IV); |
b162af07 | 478 | SvRV_set(rv, sv); |
71be2cbc | 479 | SvROK_on(rv); |
480 | return rv; | |
481 | } | |
482 | ||
79072805 LW |
483 | PP(pp_ref) |
484 | { | |
3c1e67ac DD |
485 | dSP; |
486 | SV * const sv = TOPs; | |
f12c7020 | 487 | |
511ddbdf | 488 | SvGETMAGIC(sv); |
ba75e9a4 | 489 | if (!SvROK(sv)) { |
3c1e67ac | 490 | SETs(&PL_sv_no); |
ba75e9a4 DM |
491 | return NORMAL; |
492 | } | |
493 | ||
494 | /* op is in boolean context? */ | |
495 | if ( (PL_op->op_private & OPpTRUEBOOL) | |
496 | || ( (PL_op->op_private & OPpMAYBE_TRUEBOOL) | |
497 | && block_gimme() == G_VOID)) | |
498 | { | |
499 | /* refs are always true - unless it's to an object blessed into a | |
500 | * class with a false name, i.e. "0". So we have to check for | |
501 | * that remote possibility. The following is is basically an | |
502 | * unrolled SvTRUE(sv_reftype(rv)) */ | |
503 | SV * const rv = SvRV(sv); | |
504 | if (SvOBJECT(rv)) { | |
505 | HV *stash = SvSTASH(rv); | |
506 | HEK *hek = HvNAME_HEK(stash); | |
507 | if (hek) { | |
508 | I32 len = HEK_LEN(hek); | |
509 | /* bail out and do it the hard way? */ | |
510 | if (UNLIKELY( | |
511 | len == HEf_SVKEY | |
512 | || (len == 1 && HEK_KEY(hek)[0] == '0') | |
513 | )) | |
514 | goto do_sv_ref; | |
515 | } | |
516 | } | |
517 | SETs(&PL_sv_yes); | |
518 | return NORMAL; | |
519 | } | |
520 | ||
521 | do_sv_ref: | |
522 | { | |
3c1e67ac DD |
523 | dTARGET; |
524 | SETs(TARG); | |
ba75e9a4 | 525 | sv_ref(TARG, SvRV(sv), TRUE); |
a10e04b5 | 526 | SvSETMAGIC(TARG); |
ba75e9a4 | 527 | return NORMAL; |
3c1e67ac | 528 | } |
79072805 | 529 | |
79072805 LW |
530 | } |
531 | ||
ba75e9a4 | 532 | |
79072805 LW |
533 | PP(pp_bless) |
534 | { | |
20b7effb | 535 | dSP; |
463ee0b2 | 536 | HV *stash; |
79072805 | 537 | |
463ee0b2 | 538 | if (MAXARG == 1) |
dcdfe746 | 539 | { |
c2f922f1 | 540 | curstash: |
11faa288 | 541 | stash = CopSTASH(PL_curcop); |
dcdfe746 FC |
542 | if (SvTYPE(stash) != SVt_PVHV) |
543 | Perl_croak(aTHX_ "Attempt to bless into a freed package"); | |
544 | } | |
7b8d334a | 545 | else { |
1b6737cc | 546 | SV * const ssv = POPs; |
7b8d334a | 547 | STRLEN len; |
e1ec3a88 | 548 | const char *ptr; |
81689caa | 549 | |
c2f922f1 | 550 | if (!ssv) goto curstash; |
8d9dd4b9 | 551 | SvGETMAGIC(ssv); |
c7ea825d FC |
552 | if (SvROK(ssv)) { |
553 | if (!SvAMAGIC(ssv)) { | |
554 | frog: | |
81689caa | 555 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
c7ea825d FC |
556 | } |
557 | /* SvAMAGIC is on here, but it only means potentially overloaded, | |
558 | so after stringification: */ | |
559 | ptr = SvPV_nomg_const(ssv,len); | |
560 | /* We need to check the flag again: */ | |
561 | if (!SvAMAGIC(ssv)) goto frog; | |
562 | } | |
563 | else ptr = SvPV_nomg_const(ssv,len); | |
a2a5de95 NC |
564 | if (len == 0) |
565 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
566 | "Explicit blessing to '' (assuming package main)"); | |
e69c50fe | 567 | stash = gv_stashpvn(ptr, len, GV_ADD|SvUTF8(ssv)); |
7b8d334a | 568 | } |
a0d0e21e | 569 | |
5d3fdfeb | 570 | (void)sv_bless(TOPs, stash); |
79072805 LW |
571 | RETURN; |
572 | } | |
573 | ||
fb73857a | 574 | PP(pp_gelem) |
575 | { | |
20b7effb | 576 | dSP; |
b13b2135 | 577 | |
1b6737cc | 578 | SV *sv = POPs; |
a180b31a BF |
579 | STRLEN len; |
580 | const char * const elem = SvPV_const(sv, len); | |
5695161e | 581 | GV * const gv = MUTABLE_GV(TOPs); |
c445ea15 | 582 | SV * tmpRef = NULL; |
1b6737cc | 583 | |
c445ea15 | 584 | sv = NULL; |
c4ba80c3 NC |
585 | if (elem) { |
586 | /* elem will always be NUL terminated. */ | |
c4ba80c3 NC |
587 | switch (*elem) { |
588 | case 'A': | |
500f3e18 | 589 | if (memEQs(elem, len, "ARRAY")) |
e14698d8 | 590 | { |
ad64d0ec | 591 | tmpRef = MUTABLE_SV(GvAV(gv)); |
e14698d8 FC |
592 | if (tmpRef && !AvREAL((const AV *)tmpRef) |
593 | && AvREIFY((const AV *)tmpRef)) | |
594 | av_reify(MUTABLE_AV(tmpRef)); | |
595 | } | |
c4ba80c3 NC |
596 | break; |
597 | case 'C': | |
500f3e18 | 598 | if (memEQs(elem, len, "CODE")) |
ad64d0ec | 599 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
600 | break; |
601 | case 'F': | |
500f3e18 | 602 | if (memEQs(elem, len, "FILEHANDLE")) { |
ad64d0ec | 603 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
604 | } |
605 | else | |
500f3e18 | 606 | if (memEQs(elem, len, "FORMAT")) |
ad64d0ec | 607 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
608 | break; |
609 | case 'G': | |
500f3e18 | 610 | if (memEQs(elem, len, "GLOB")) |
ad64d0ec | 611 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
612 | break; |
613 | case 'H': | |
500f3e18 | 614 | if (memEQs(elem, len, "HASH")) |
ad64d0ec | 615 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
616 | break; |
617 | case 'I': | |
500f3e18 | 618 | if (memEQs(elem, len, "IO")) |
ad64d0ec | 619 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
620 | break; |
621 | case 'N': | |
500f3e18 | 622 | if (memEQs(elem, len, "NAME")) |
a663657d | 623 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
624 | break; |
625 | case 'P': | |
500f3e18 | 626 | if (memEQs(elem, len, "PACKAGE")) { |
7fa3a4ab NC |
627 | const HV * const stash = GvSTASH(gv); |
628 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 629 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
630 | } |
631 | break; | |
632 | case 'S': | |
500f3e18 | 633 | if (memEQs(elem, len, "SCALAR")) |
f9d52e31 | 634 | tmpRef = GvSVn(gv); |
c4ba80c3 | 635 | break; |
39b99f21 | 636 | } |
fb73857a | 637 | } |
76e3520e GS |
638 | if (tmpRef) |
639 | sv = newRV(tmpRef); | |
fb73857a | 640 | if (sv) |
641 | sv_2mortal(sv); | |
642 | else | |
3280af22 | 643 | sv = &PL_sv_undef; |
5695161e | 644 | SETs(sv); |
fb73857a | 645 | RETURN; |
646 | } | |
647 | ||
a0d0e21e | 648 | /* Pattern matching */ |
79072805 | 649 | |
a0d0e21e | 650 | PP(pp_study) |
79072805 | 651 | { |
add3e777 | 652 | dSP; dTOPss; |
a0d0e21e LW |
653 | STRLEN len; |
654 | ||
1fa930f2 | 655 | (void)SvPV(sv, len); |
bc9a5256 | 656 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
32f0ea87 | 657 | /* Historically, study was skipped in these cases. */ |
add3e777 FC |
658 | SETs(&PL_sv_no); |
659 | return NORMAL; | |
a4f4e906 NC |
660 | } |
661 | ||
a58a85fa | 662 | /* Make study a no-op. It's no longer useful and its existence |
32f0ea87 | 663 | complicates matters elsewhere. */ |
add3e777 FC |
664 | SETs(&PL_sv_yes); |
665 | return NORMAL; | |
79072805 LW |
666 | } |
667 | ||
b1c05ba5 DM |
668 | |
669 | /* also used for: pp_transr() */ | |
670 | ||
a0d0e21e | 671 | PP(pp_trans) |
79072805 | 672 | { |
6442877a | 673 | dSP; |
a0d0e21e LW |
674 | SV *sv; |
675 | ||
533c011a | 676 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 677 | sv = POPs; |
79072805 | 678 | else { |
a0d0e21e | 679 | EXTEND(SP,1); |
f605e527 | 680 | if (ARGTARG) |
6442877a | 681 | sv = PAD_SV(ARGTARG); |
f605e527 FC |
682 | else { |
683 | sv = DEFSV; | |
684 | } | |
79072805 | 685 | } |
bb16bae8 | 686 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
687 | STRLEN len; |
688 | const char * const pv = SvPV(sv,len); | |
689 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 690 | do_trans(newsv); |
290797f7 | 691 | PUSHs(newsv); |
bb16bae8 | 692 | } |
5bbe7184 | 693 | else { |
f0fd0980 DM |
694 | Size_t i = do_trans(sv); |
695 | mPUSHi((UV)i); | |
5bbe7184 | 696 | } |
a0d0e21e | 697 | RETURN; |
79072805 LW |
698 | } |
699 | ||
a0d0e21e | 700 | /* Lvalue operators. */ |
79072805 | 701 | |
f595e19f | 702 | static size_t |
81745e4e NC |
703 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) |
704 | { | |
81745e4e NC |
705 | STRLEN len; |
706 | char *s; | |
f595e19f | 707 | size_t count = 0; |
81745e4e NC |
708 | |
709 | PERL_ARGS_ASSERT_DO_CHOMP; | |
710 | ||
711 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
f595e19f | 712 | return 0; |
81745e4e NC |
713 | if (SvTYPE(sv) == SVt_PVAV) { |
714 | I32 i; | |
715 | AV *const av = MUTABLE_AV(sv); | |
716 | const I32 max = AvFILL(av); | |
717 | ||
718 | for (i = 0; i <= max; i++) { | |
719 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
720 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
f595e19f | 721 | count += do_chomp(retval, sv, chomping); |
81745e4e | 722 | } |
f595e19f | 723 | return count; |
81745e4e NC |
724 | } |
725 | else if (SvTYPE(sv) == SVt_PVHV) { | |
726 | HV* const hv = MUTABLE_HV(sv); | |
727 | HE* entry; | |
728 | (void)hv_iterinit(hv); | |
729 | while ((entry = hv_iternext(hv))) | |
f595e19f FC |
730 | count += do_chomp(retval, hv_iterval(hv,entry), chomping); |
731 | return count; | |
81745e4e NC |
732 | } |
733 | else if (SvREADONLY(sv)) { | |
cb077ed2 | 734 | Perl_croak_no_modify(); |
81745e4e NC |
735 | } |
736 | ||
81745e4e NC |
737 | s = SvPV(sv, len); |
738 | if (chomping) { | |
81745e4e | 739 | if (s && len) { |
997c424a DD |
740 | char *temp_buffer = NULL; |
741 | SV *svrecode = NULL; | |
81745e4e NC |
742 | s += --len; |
743 | if (RsPARA(PL_rs)) { | |
744 | if (*s != '\n') | |
997c424a | 745 | goto nope_free_nothing; |
f595e19f | 746 | ++count; |
81745e4e NC |
747 | while (len && s[-1] == '\n') { |
748 | --len; | |
749 | --s; | |
f595e19f | 750 | ++count; |
81745e4e NC |
751 | } |
752 | } | |
753 | else { | |
754 | STRLEN rslen, rs_charlen; | |
755 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
756 | ||
757 | rs_charlen = SvUTF8(PL_rs) | |
758 | ? sv_len_utf8(PL_rs) | |
759 | : rslen; | |
760 | ||
761 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
762 | /* Assumption is that rs is shorter than the scalar. */ | |
763 | if (SvUTF8(PL_rs)) { | |
764 | /* RS is utf8, scalar is 8 bit. */ | |
765 | bool is_utf8 = TRUE; | |
766 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
767 | &rslen, &is_utf8); | |
768 | if (is_utf8) { | |
997c424a DD |
769 | /* Cannot downgrade, therefore cannot possibly match. |
770 | At this point, temp_buffer is not alloced, and | |
771 | is the buffer inside PL_rs, so dont free it. | |
81745e4e NC |
772 | */ |
773 | assert (temp_buffer == rsptr); | |
997c424a | 774 | goto nope_free_sv; |
81745e4e NC |
775 | } |
776 | rsptr = temp_buffer; | |
777 | } | |
81745e4e NC |
778 | else { |
779 | /* RS is 8 bit, scalar is utf8. */ | |
780 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
781 | rsptr = temp_buffer; | |
782 | } | |
783 | } | |
784 | if (rslen == 1) { | |
785 | if (*s != *rsptr) | |
997c424a | 786 | goto nope_free_all; |
f595e19f | 787 | ++count; |
81745e4e NC |
788 | } |
789 | else { | |
790 | if (len < rslen - 1) | |
997c424a | 791 | goto nope_free_all; |
81745e4e NC |
792 | len -= rslen - 1; |
793 | s -= rslen - 1; | |
794 | if (memNE(s, rsptr, rslen)) | |
997c424a | 795 | goto nope_free_all; |
f595e19f | 796 | count += rs_charlen; |
81745e4e NC |
797 | } |
798 | } | |
3b7ded39 | 799 | SvPV_force_nomg_nolen(sv); |
81745e4e NC |
800 | SvCUR_set(sv, len); |
801 | *SvEND(sv) = '\0'; | |
802 | SvNIOK_off(sv); | |
803 | SvSETMAGIC(sv); | |
81745e4e | 804 | |
997c424a DD |
805 | nope_free_all: |
806 | Safefree(temp_buffer); | |
807 | nope_free_sv: | |
808 | SvREFCNT_dec(svrecode); | |
809 | nope_free_nothing: ; | |
810 | } | |
81745e4e | 811 | } else { |
f8c80a8e | 812 | if (len && (!SvPOK(sv) || SvIsCOW(sv))) |
81745e4e NC |
813 | s = SvPV_force_nomg(sv, len); |
814 | if (DO_UTF8(sv)) { | |
815 | if (s && len) { | |
816 | char * const send = s + len; | |
817 | char * const start = s; | |
818 | s = send - 1; | |
819 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
820 | s--; | |
821 | if (is_utf8_string((U8*)s, send - s)) { | |
822 | sv_setpvn(retval, s, send - s); | |
823 | *s = '\0'; | |
824 | SvCUR_set(sv, s - start); | |
825 | SvNIOK_off(sv); | |
826 | SvUTF8_on(retval); | |
827 | } | |
828 | } | |
829 | else | |
500f3e18 | 830 | SvPVCLEAR(retval); |
81745e4e NC |
831 | } |
832 | else if (s && len) { | |
833 | s += --len; | |
834 | sv_setpvn(retval, s, 1); | |
835 | *s = '\0'; | |
836 | SvCUR_set(sv, len); | |
837 | SvUTF8_off(sv); | |
838 | SvNIOK_off(sv); | |
839 | } | |
840 | else | |
500f3e18 | 841 | SvPVCLEAR(retval); |
81745e4e NC |
842 | SvSETMAGIC(sv); |
843 | } | |
f595e19f | 844 | return count; |
81745e4e NC |
845 | } |
846 | ||
b1c05ba5 DM |
847 | |
848 | /* also used for: pp_schomp() */ | |
849 | ||
a0d0e21e LW |
850 | PP(pp_schop) |
851 | { | |
20b7effb | 852 | dSP; dTARGET; |
fa54efae NC |
853 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
854 | ||
f595e19f | 855 | const size_t count = do_chomp(TARG, TOPs, chomping); |
fa54efae | 856 | if (chomping) |
f595e19f | 857 | sv_setiv(TARG, count); |
a0d0e21e | 858 | SETTARG; |
ee41d8c7 | 859 | return NORMAL; |
79072805 LW |
860 | } |
861 | ||
b1c05ba5 DM |
862 | |
863 | /* also used for: pp_chomp() */ | |
864 | ||
a0d0e21e | 865 | PP(pp_chop) |
79072805 | 866 | { |
20b7effb | 867 | dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 868 | const bool chomping = PL_op->op_type == OP_CHOMP; |
f595e19f | 869 | size_t count = 0; |
8ec5e241 | 870 | |
20cf1f79 | 871 | while (MARK < SP) |
f595e19f FC |
872 | count += do_chomp(TARG, *++MARK, chomping); |
873 | if (chomping) | |
874 | sv_setiv(TARG, count); | |
20cf1f79 NC |
875 | SP = ORIGMARK; |
876 | XPUSHTARG; | |
a0d0e21e | 877 | RETURN; |
79072805 LW |
878 | } |
879 | ||
a0d0e21e LW |
880 | PP(pp_undef) |
881 | { | |
20b7effb | 882 | dSP; |
a0d0e21e LW |
883 | SV *sv; |
884 | ||
533c011a | 885 | if (!PL_op->op_private) { |
774d564b | 886 | EXTEND(SP, 1); |
a0d0e21e | 887 | RETPUSHUNDEF; |
774d564b | 888 | } |
79072805 | 889 | |
821f14b0 | 890 | sv = TOPs; |
a0d0e21e | 891 | if (!sv) |
821f14b0 FC |
892 | { |
893 | SETs(&PL_sv_undef); | |
894 | return NORMAL; | |
895 | } | |
85e6fe83 | 896 | |
4dda930b FC |
897 | if (SvTHINKFIRST(sv)) |
898 | sv_force_normal_flags(sv, SV_COW_DROP_PV|SV_IMMEDIATE_UNREF); | |
85e6fe83 | 899 | |
a0d0e21e LW |
900 | switch (SvTYPE(sv)) { |
901 | case SVt_NULL: | |
902 | break; | |
903 | case SVt_PVAV: | |
60edcf09 | 904 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
905 | break; |
906 | case SVt_PVHV: | |
60edcf09 | 907 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
908 | break; |
909 | case SVt_PVCV: | |
a2a5de95 | 910 | if (cv_const_sv((const CV *)sv)) |
714cd18f | 911 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
147e3846 | 912 | "Constant subroutine %" SVf " undefined", |
714cd18f BF |
913 | SVfARG(CvANON((const CV *)sv) |
914 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
bdbfc51a FC |
915 | : sv_2mortal(newSVhek( |
916 | CvNAMED(sv) | |
917 | ? CvNAME_HEK((CV *)sv) | |
918 | : GvENAME_HEK(CvGV((const CV *)sv)) | |
919 | )) | |
920 | )); | |
5f66b61c | 921 | /* FALLTHROUGH */ |
9607fc9c | 922 | case SVt_PVFM: |
6fc92669 | 923 | /* let user-undef'd sub keep its identity */ |
b7acb0a3 | 924 | cv_undef_flags(MUTABLE_CV(sv), CV_UNDEF_KEEP_NAME); |
a0d0e21e | 925 | break; |
8e07c86e | 926 | case SVt_PVGV: |
bc1df6c2 FC |
927 | assert(isGV_with_GP(sv)); |
928 | assert(!SvFAKE(sv)); | |
929 | { | |
20408e3c | 930 | GP *gp; |
dd69841b BB |
931 | HV *stash; |
932 | ||
dd69841b | 933 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
934 | bool method_changed |
935 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
936 | && HvENAME_get(stash); | |
937 | /* undef *Foo:: */ | |
938 | if((stash = GvHV((const GV *)sv))) { | |
939 | if(HvENAME_get(stash)) | |
940 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
941 | else stash = NULL; | |
942 | } | |
dd69841b | 943 | |
795eb8c8 | 944 | SvREFCNT_inc_simple_void_NN(sv_2mortal(sv)); |
159b6efe | 945 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 946 | Newxz(gp, 1, GP); |
c43ae56f | 947 | GvGP_set(sv, gp_ref(gp)); |
2e3295e3 | 948 | #ifndef PERL_DONT_CREATE_GVSV |
561b68a9 | 949 | GvSV(sv) = newSV(0); |
2e3295e3 | 950 | #endif |
57843af0 | 951 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 952 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 953 | GvMULTI_on(sv); |
e530fb81 FC |
954 | |
955 | if(stash) | |
afdbe55d | 956 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
957 | stash = NULL; |
958 | /* undef *Foo::ISA */ | |
959 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
960 | && (stash = GvSTASH((const GV *)sv)) | |
961 | && (method_changed || HvENAME(stash)) ) | |
962 | mro_isa_changed_in(stash); | |
963 | else if(method_changed) | |
964 | mro_method_changed_in( | |
da9043f5 | 965 | GvSTASH((const GV *)sv) |
e530fb81 FC |
966 | ); |
967 | ||
6e592b3a | 968 | break; |
20408e3c | 969 | } |
a0d0e21e | 970 | default: |
b15aece3 | 971 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 972 | SvPV_free(sv); |
c445ea15 | 973 | SvPV_set(sv, NULL); |
4633a7c4 | 974 | SvLEN_set(sv, 0); |
a0d0e21e | 975 | } |
0c34ef67 | 976 | SvOK_off(sv); |
4633a7c4 | 977 | SvSETMAGIC(sv); |
79072805 | 978 | } |
a0d0e21e | 979 | |
821f14b0 FC |
980 | SETs(&PL_sv_undef); |
981 | return NORMAL; | |
79072805 LW |
982 | } |
983 | ||
b1c05ba5 | 984 | |
20e96431 | 985 | /* common "slow" code for pp_postinc and pp_postdec */ |
b1c05ba5 | 986 | |
20e96431 DM |
987 | static OP * |
988 | S_postincdec_common(pTHX_ SV *sv, SV *targ) | |
a0d0e21e | 989 | { |
20e96431 | 990 | dSP; |
c22c99bc FC |
991 | const bool inc = |
992 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
20e96431 DM |
993 | |
994 | if (SvROK(sv)) | |
7dcb9b98 | 995 | TARG = sv_newmortal(); |
20e96431 DM |
996 | sv_setsv(TARG, sv); |
997 | if (inc) | |
998 | sv_inc_nomg(sv); | |
999 | else | |
1000 | sv_dec_nomg(sv); | |
1001 | SvSETMAGIC(sv); | |
1e54a23f | 1002 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1003 | if (inc && !SvOK(TARG)) |
a0d0e21e | 1004 | sv_setiv(TARG, 0); |
e87de4ab | 1005 | SETTARG; |
a0d0e21e LW |
1006 | return NORMAL; |
1007 | } | |
79072805 | 1008 | |
20e96431 DM |
1009 | |
1010 | /* also used for: pp_i_postinc() */ | |
1011 | ||
1012 | PP(pp_postinc) | |
1013 | { | |
1014 | dSP; dTARGET; | |
1015 | SV *sv = TOPs; | |
1016 | ||
1017 | /* special-case sv being a simple integer */ | |
1018 | if (LIKELY(((sv->sv_flags & | |
1019 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1020 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1021 | == SVf_IOK)) | |
1022 | && SvIVX(sv) != IV_MAX) | |
1023 | { | |
1024 | IV iv = SvIVX(sv); | |
1025 | SvIV_set(sv, iv + 1); | |
1026 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1027 | SETs(TARG); | |
1028 | return NORMAL; | |
1029 | } | |
1030 | ||
1031 | return S_postincdec_common(aTHX_ sv, TARG); | |
1032 | } | |
1033 | ||
1034 | ||
1035 | /* also used for: pp_i_postdec() */ | |
1036 | ||
1037 | PP(pp_postdec) | |
1038 | { | |
1039 | dSP; dTARGET; | |
1040 | SV *sv = TOPs; | |
1041 | ||
1042 | /* special-case sv being a simple integer */ | |
1043 | if (LIKELY(((sv->sv_flags & | |
1044 | (SVf_THINKFIRST|SVs_GMG|SVf_IVisUV| | |
1045 | SVf_IOK|SVf_NOK|SVf_POK|SVp_NOK|SVp_POK|SVf_ROK)) | |
1046 | == SVf_IOK)) | |
1047 | && SvIVX(sv) != IV_MIN) | |
1048 | { | |
1049 | IV iv = SvIVX(sv); | |
1050 | SvIV_set(sv, iv - 1); | |
1051 | TARGi(iv, 0); /* arg not GMG, so can't be tainted */ | |
1052 | SETs(TARG); | |
1053 | return NORMAL; | |
1054 | } | |
1055 | ||
1056 | return S_postincdec_common(aTHX_ sv, TARG); | |
1057 | } | |
1058 | ||
1059 | ||
a0d0e21e LW |
1060 | /* Ordinary operators. */ |
1061 | ||
1062 | PP(pp_pow) | |
1063 | { | |
20b7effb | 1064 | dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1065 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1066 | bool is_int = 0; |
1067 | #endif | |
6f1401dc DM |
1068 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1069 | svr = TOPs; | |
1070 | svl = TOPm1s; | |
52a96ae6 HS |
1071 | #ifdef PERL_PRESERVE_IVUV |
1072 | /* For integer to integer power, we do the calculation by hand wherever | |
1073 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1074 | integer afterwards. */ | |
01f91bf2 | 1075 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
900658e3 PF |
1076 | UV power; |
1077 | bool baseuok; | |
1078 | UV baseuv; | |
1079 | ||
800401ee JH |
1080 | if (SvUOK(svr)) { |
1081 | power = SvUVX(svr); | |
900658e3 | 1082 | } else { |
800401ee | 1083 | const IV iv = SvIVX(svr); |
900658e3 PF |
1084 | if (iv >= 0) { |
1085 | power = iv; | |
1086 | } else { | |
1087 | goto float_it; /* Can't do negative powers this way. */ | |
1088 | } | |
1089 | } | |
1090 | ||
800401ee | 1091 | baseuok = SvUOK(svl); |
900658e3 | 1092 | if (baseuok) { |
800401ee | 1093 | baseuv = SvUVX(svl); |
900658e3 | 1094 | } else { |
800401ee | 1095 | const IV iv = SvIVX(svl); |
900658e3 PF |
1096 | if (iv >= 0) { |
1097 | baseuv = iv; | |
1098 | baseuok = TRUE; /* effectively it's a UV now */ | |
1099 | } else { | |
1100 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1101 | } | |
1102 | } | |
52a96ae6 HS |
1103 | /* now we have integer ** positive integer. */ |
1104 | is_int = 1; | |
1105 | ||
1106 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1107 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1108 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1109 | The logic here will work for any base (even non-integer |
1110 | bases) but it can be less accurate than | |
1111 | pow (base,power) or exp (power * log (base)) when the | |
1112 | intermediate values start to spill out of the mantissa. | |
1113 | With powers of 2 we know this can't happen. | |
1114 | And powers of 2 are the favourite thing for perl | |
1115 | programmers to notice ** not doing what they mean. */ | |
1116 | NV result = 1.0; | |
1117 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1118 | |
1119 | if (power & 1) { | |
1120 | result *= base; | |
1121 | } | |
1122 | while (power >>= 1) { | |
1123 | base *= base; | |
1124 | if (power & 1) { | |
1125 | result *= base; | |
1126 | } | |
1127 | } | |
58d76dfd JH |
1128 | SP--; |
1129 | SETn( result ); | |
6f1401dc | 1130 | SvIV_please_nomg(svr); |
58d76dfd | 1131 | RETURN; |
52a96ae6 | 1132 | } else { |
eb578fdb KW |
1133 | unsigned int highbit = 8 * sizeof(UV); |
1134 | unsigned int diff = 8 * sizeof(UV); | |
900658e3 PF |
1135 | while (diff >>= 1) { |
1136 | highbit -= diff; | |
1137 | if (baseuv >> highbit) { | |
1138 | highbit += diff; | |
1139 | } | |
52a96ae6 HS |
1140 | } |
1141 | /* we now have baseuv < 2 ** highbit */ | |
1142 | if (power * highbit <= 8 * sizeof(UV)) { | |
1143 | /* result will definitely fit in UV, so use UV math | |
1144 | on same algorithm as above */ | |
eb578fdb KW |
1145 | UV result = 1; |
1146 | UV base = baseuv; | |
f2338a2e | 1147 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1148 | if (odd_power) { |
1149 | result *= base; | |
1150 | } | |
1151 | while (power >>= 1) { | |
1152 | base *= base; | |
1153 | if (power & 1) { | |
52a96ae6 | 1154 | result *= base; |
52a96ae6 HS |
1155 | } |
1156 | } | |
1157 | SP--; | |
0615a994 | 1158 | if (baseuok || !odd_power) |
52a96ae6 HS |
1159 | /* answer is positive */ |
1160 | SETu( result ); | |
1161 | else if (result <= (UV)IV_MAX) | |
1162 | /* answer negative, fits in IV */ | |
1163 | SETi( -(IV)result ); | |
1164 | else if (result == (UV)IV_MIN) | |
1165 | /* 2's complement assumption: special case IV_MIN */ | |
1166 | SETi( IV_MIN ); | |
1167 | else | |
1168 | /* answer negative, doesn't fit */ | |
1169 | SETn( -(NV)result ); | |
1170 | RETURN; | |
1171 | } | |
1172 | } | |
58d76dfd | 1173 | } |
52a96ae6 | 1174 | float_it: |
58d76dfd | 1175 | #endif |
a0d0e21e | 1176 | { |
6f1401dc DM |
1177 | NV right = SvNV_nomg(svr); |
1178 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1179 | (void)POPs; |
3aaeb624 JA |
1180 | |
1181 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1182 | /* | |
1183 | We are building perl with long double support and are on an AIX OS | |
1184 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1185 | negative base. This was reported to IBM as PMR #23047-379 on | |
1186 | 03/06/2006. The problem exists in at least the following versions | |
1187 | of AIX and the libm fileset, and no doubt others as well: | |
1188 | ||
1189 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1190 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1191 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1192 | ||
1193 | So, until IBM fixes powl(), we provide the following workaround to | |
1194 | handle the problem ourselves. Our logic is as follows: for | |
1195 | negative bases (left), we use fmod(right, 2) to check if the | |
1196 | exponent is an odd or even integer: | |
1197 | ||
1198 | - if odd, powl(left, right) == -powl(-left, right) | |
1199 | - if even, powl(left, right) == powl(-left, right) | |
1200 | ||
1201 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1202 | we just return that (as NV_NAN). | |
1203 | */ | |
1204 | ||
1205 | if (left < 0.0) { | |
1206 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1207 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1208 | SETn( -Perl_pow( -left, right) ); | |
1209 | } else if (mod2 == 0.0) { /* even integer */ | |
1210 | SETn( Perl_pow( -left, right) ); | |
1211 | } else { /* fractional power */ | |
1212 | SETn( NV_NAN ); | |
1213 | } | |
1214 | } else { | |
1215 | SETn( Perl_pow( left, right) ); | |
1216 | } | |
1217 | #else | |
52a96ae6 | 1218 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1219 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1220 | ||
52a96ae6 HS |
1221 | #ifdef PERL_PRESERVE_IVUV |
1222 | if (is_int) | |
6f1401dc | 1223 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1224 | #endif |
1225 | RETURN; | |
93a17b20 | 1226 | } |
a0d0e21e LW |
1227 | } |
1228 | ||
1229 | PP(pp_multiply) | |
1230 | { | |
20b7effb | 1231 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1232 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1233 | svr = TOPs; | |
1234 | svl = TOPm1s; | |
230ee21f | 1235 | |
28e5dec8 | 1236 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1237 | |
1238 | /* special-case some simple common cases */ | |
1239 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1240 | IV il, ir; | |
1241 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1242 | if (flags & SVf_IOK) { | |
1243 | /* both args are simple IVs */ | |
1244 | UV topl, topr; | |
1245 | il = SvIVX(svl); | |
1246 | ir = SvIVX(svr); | |
1247 | do_iv: | |
1248 | topl = ((UV)il) >> (UVSIZE * 4 - 1); | |
1249 | topr = ((UV)ir) >> (UVSIZE * 4 - 1); | |
1250 | ||
1251 | /* if both are in a range that can't under/overflow, do a | |
1252 | * simple integer multiply: if the top halves(*) of both numbers | |
1253 | * are 00...00 or 11...11, then it's safe. | |
1254 | * (*) for 32-bits, the "top half" is the top 17 bits, | |
1255 | * for 64-bits, its 33 bits */ | |
1256 | if (!( | |
1257 | ((topl+1) | (topr+1)) | |
1258 | & ( (((UV)1) << (UVSIZE * 4 + 1)) - 2) /* 11..110 */ | |
1259 | )) { | |
1260 | SP--; | |
1261 | TARGi(il * ir, 0); /* args not GMG, so can't be tainted */ | |
1262 | SETs(TARG); | |
1263 | RETURN; | |
1264 | } | |
1265 | goto generic; | |
1266 | } | |
1267 | else if (flags & SVf_NOK) { | |
1268 | /* both args are NVs */ | |
1269 | NV nl = SvNVX(svl); | |
1270 | NV nr = SvNVX(svr); | |
1271 | NV result; | |
1272 | ||
3336af0b DD |
1273 | if ( |
1274 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
1275 | !Perl_isnan(nl) && nl == (NV)(il = (IV)nl) | |
1276 | && !Perl_isnan(nr) && nr == (NV)(ir = (IV)nr) | |
1277 | #else | |
1278 | nl == (NV)(il = (IV)nl) && nr == (NV)(ir = (IV)nr) | |
1279 | #endif | |
1280 | ) | |
230ee21f DM |
1281 | /* nothing was lost by converting to IVs */ |
1282 | goto do_iv; | |
1283 | SP--; | |
1284 | result = nl * nr; | |
1f02ab1d | 1285 | # if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1286 | if (Perl_isinf(result)) { |
1287 | Zero((U8*)&result + 8, 8, U8); | |
1288 | } | |
1289 | # endif | |
1290 | TARGn(result, 0); /* args not GMG, so can't be tainted */ | |
1291 | SETs(TARG); | |
1292 | RETURN; | |
1293 | } | |
1294 | } | |
1295 | ||
1296 | generic: | |
1297 | ||
01f91bf2 | 1298 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1299 | /* Unless the left argument is integer in range we are going to have to |
1300 | use NV maths. Hence only attempt to coerce the right argument if | |
1301 | we know the left is integer. */ | |
1302 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1303 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1304 | bool auvok = SvUOK(svl); |
1305 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1306 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1307 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1308 | UV alow; | |
1309 | UV ahigh; | |
1310 | UV blow; | |
1311 | UV bhigh; | |
1312 | ||
1313 | if (auvok) { | |
800401ee | 1314 | alow = SvUVX(svl); |
28e5dec8 | 1315 | } else { |
800401ee | 1316 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1317 | if (aiv >= 0) { |
1318 | alow = aiv; | |
1319 | auvok = TRUE; /* effectively it's a UV now */ | |
1320 | } else { | |
53e2bfb7 DM |
1321 | /* abs, auvok == false records sign */ |
1322 | alow = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); | |
28e5dec8 JH |
1323 | } |
1324 | } | |
1325 | if (buvok) { | |
800401ee | 1326 | blow = SvUVX(svr); |
28e5dec8 | 1327 | } else { |
800401ee | 1328 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1329 | if (biv >= 0) { |
1330 | blow = biv; | |
1331 | buvok = TRUE; /* effectively it's a UV now */ | |
1332 | } else { | |
53e2bfb7 DM |
1333 | /* abs, buvok == false records sign */ |
1334 | blow = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); | |
28e5dec8 JH |
1335 | } |
1336 | } | |
1337 | ||
1338 | /* If this does sign extension on unsigned it's time for plan B */ | |
1339 | ahigh = alow >> (4 * sizeof (UV)); | |
1340 | alow &= botmask; | |
1341 | bhigh = blow >> (4 * sizeof (UV)); | |
1342 | blow &= botmask; | |
1343 | if (ahigh && bhigh) { | |
6f207bd3 | 1344 | NOOP; |
28e5dec8 JH |
1345 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1346 | which is overflow. Drop to NVs below. */ | |
1347 | } else if (!ahigh && !bhigh) { | |
1348 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1349 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1350 | const UV product = alow * blow; |
28e5dec8 JH |
1351 | if (auvok == buvok) { |
1352 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1353 | SP--; | |
1354 | SETu( product ); | |
1355 | RETURN; | |
1356 | } else if (product <= (UV)IV_MIN) { | |
1357 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1358 | /* -ve result, which could overflow an IV */ | |
1359 | SP--; | |
02b08bbc DM |
1360 | /* can't negate IV_MIN, but there are aren't two |
1361 | * integers such that !ahigh && !bhigh, where the | |
1362 | * product equals 0x800....000 */ | |
1363 | assert(product != (UV)IV_MIN); | |
25716404 | 1364 | SETi( -(IV)product ); |
28e5dec8 JH |
1365 | RETURN; |
1366 | } /* else drop to NVs below. */ | |
1367 | } else { | |
1368 | /* One operand is large, 1 small */ | |
1369 | UV product_middle; | |
1370 | if (bhigh) { | |
1371 | /* swap the operands */ | |
1372 | ahigh = bhigh; | |
1373 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1374 | blow = alow; | |
1375 | alow = bhigh; | |
1376 | } | |
1377 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1378 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1379 | product_middle = ahigh * blow; | |
1380 | if (!(product_middle & topmask)) { | |
1381 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1382 | UV product_low; | |
1383 | product_middle <<= (4 * sizeof (UV)); | |
1384 | product_low = alow * blow; | |
1385 | ||
1386 | /* as for pp_add, UV + something mustn't get smaller. | |
1387 | IIRC ANSI mandates this wrapping *behaviour* for | |
1388 | unsigned whatever the actual representation*/ | |
1389 | product_low += product_middle; | |
1390 | if (product_low >= product_middle) { | |
1391 | /* didn't overflow */ | |
1392 | if (auvok == buvok) { | |
1393 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1394 | SP--; | |
1395 | SETu( product_low ); | |
1396 | RETURN; | |
1397 | } else if (product_low <= (UV)IV_MIN) { | |
1398 | /* 2s complement assumption again */ | |
1399 | /* -ve result, which could overflow an IV */ | |
1400 | SP--; | |
53e2bfb7 DM |
1401 | SETi(product_low == (UV)IV_MIN |
1402 | ? IV_MIN : -(IV)product_low); | |
28e5dec8 JH |
1403 | RETURN; |
1404 | } /* else drop to NVs below. */ | |
1405 | } | |
1406 | } /* product_middle too large */ | |
1407 | } /* ahigh && bhigh */ | |
800401ee JH |
1408 | } /* SvIOK(svl) */ |
1409 | } /* SvIOK(svr) */ | |
28e5dec8 | 1410 | #endif |
a0d0e21e | 1411 | { |
6f1401dc DM |
1412 | NV right = SvNV_nomg(svr); |
1413 | NV left = SvNV_nomg(svl); | |
230ee21f DM |
1414 | NV result = left * right; |
1415 | ||
4efa5a16 | 1416 | (void)POPs; |
1f02ab1d | 1417 | #if defined(__sgi) && defined(USE_LONG_DOUBLE) && LONG_DOUBLEKIND == LONG_DOUBLE_IS_DOUBLEDOUBLE_128_BIT_BE_BE && NVSIZE == 16 |
230ee21f DM |
1418 | if (Perl_isinf(result)) { |
1419 | Zero((U8*)&result + 8, 8, U8); | |
3ec400f5 | 1420 | } |
3ec400f5 | 1421 | #endif |
230ee21f | 1422 | SETn(result); |
a0d0e21e | 1423 | RETURN; |
79072805 | 1424 | } |
a0d0e21e LW |
1425 | } |
1426 | ||
1427 | PP(pp_divide) | |
1428 | { | |
20b7effb | 1429 | dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1430 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1431 | svr = TOPs; | |
1432 | svl = TOPm1s; | |
5479d192 | 1433 | /* Only try to do UV divide first |
68795e93 | 1434 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1435 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1436 | to preserve)) | |
1437 | The assumption is that it is better to use floating point divide | |
1438 | whenever possible, only doing integer divide first if we can't be sure. | |
1439 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1440 | can be too large to preserve, so don't need to compile the code to | |
1441 | test the size of UVs. */ | |
1442 | ||
00b6a411 | 1443 | #if defined(SLOPPYDIVIDE) || (defined(PERL_PRESERVE_IVUV) && !defined(NV_PRESERVES_UV)) |
5479d192 NC |
1444 | # define PERL_TRY_UV_DIVIDE |
1445 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1446 | #endif |
5479d192 NC |
1447 | |
1448 | #ifdef PERL_TRY_UV_DIVIDE | |
01f91bf2 | 1449 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
800401ee JH |
1450 | bool left_non_neg = SvUOK(svl); |
1451 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1452 | UV left; |
1453 | UV right; | |
1454 | ||
1455 | if (right_non_neg) { | |
800401ee | 1456 | right = SvUVX(svr); |
5479d192 NC |
1457 | } |
1458 | else { | |
800401ee | 1459 | const IV biv = SvIVX(svr); |
5479d192 NC |
1460 | if (biv >= 0) { |
1461 | right = biv; | |
1462 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1463 | } | |
1464 | else { | |
02b08bbc | 1465 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
5479d192 NC |
1466 | } |
1467 | } | |
1468 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1469 | warning before dieing, hence this test goes here. | |
1470 | If it were immediately before the second SvIV_please, then | |
1471 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1472 | no inspection would give no warning. */ |
5479d192 NC |
1473 | if (right == 0) |
1474 | DIE(aTHX_ "Illegal division by zero"); | |
1475 | ||
1476 | if (left_non_neg) { | |
800401ee | 1477 | left = SvUVX(svl); |
5479d192 NC |
1478 | } |
1479 | else { | |
800401ee | 1480 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1481 | if (aiv >= 0) { |
1482 | left = aiv; | |
1483 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1484 | } | |
1485 | else { | |
02b08bbc | 1486 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
5479d192 NC |
1487 | } |
1488 | } | |
1489 | ||
1490 | if (left >= right | |
1491 | #ifdef SLOPPYDIVIDE | |
1492 | /* For sloppy divide we always attempt integer division. */ | |
1493 | #else | |
1494 | /* Otherwise we only attempt it if either or both operands | |
1495 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1496 | we fall through to the NV divide code below. However, |
1497 | as left >= right to ensure integer result here, we know that | |
1498 | we can skip the test on the right operand - right big | |
1499 | enough not to be preserved can't get here unless left is | |
1500 | also too big. */ | |
1501 | ||
1502 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1503 | #endif |
1504 | ) { | |
1505 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1506 | const UV result = left / right; |
5479d192 NC |
1507 | if (result * right == left) { |
1508 | SP--; /* result is valid */ | |
1509 | if (left_non_neg == right_non_neg) { | |
1510 | /* signs identical, result is positive. */ | |
1511 | SETu( result ); | |
1512 | RETURN; | |
1513 | } | |
1514 | /* 2s complement assumption */ | |
1515 | if (result <= (UV)IV_MIN) | |
02b08bbc | 1516 | SETi(result == (UV)IV_MIN ? IV_MIN : -(IV)result); |
5479d192 NC |
1517 | else { |
1518 | /* It's exact but too negative for IV. */ | |
1519 | SETn( -(NV)result ); | |
1520 | } | |
1521 | RETURN; | |
1522 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1523 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
01f91bf2 | 1524 | } /* one operand wasn't SvIOK */ |
5479d192 NC |
1525 | #endif /* PERL_TRY_UV_DIVIDE */ |
1526 | { | |
6f1401dc DM |
1527 | NV right = SvNV_nomg(svr); |
1528 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1529 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1530 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1531 | if (! Perl_isnan(right) && right == 0.0) | |
1532 | #else | |
659c4b96 | 1533 | if (right == 0.0) |
ebc6a117 | 1534 | #endif |
5479d192 NC |
1535 | DIE(aTHX_ "Illegal division by zero"); |
1536 | PUSHn( left / right ); | |
1537 | RETURN; | |
79072805 | 1538 | } |
a0d0e21e LW |
1539 | } |
1540 | ||
1541 | PP(pp_modulo) | |
1542 | { | |
20b7effb | 1543 | dSP; dATARGET; |
6f1401dc | 1544 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); |
a0d0e21e | 1545 | { |
9c5ffd7c JH |
1546 | UV left = 0; |
1547 | UV right = 0; | |
dc656993 JH |
1548 | bool left_neg = FALSE; |
1549 | bool right_neg = FALSE; | |
e2c88acc NC |
1550 | bool use_double = FALSE; |
1551 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1552 | NV dright = 0.0; |
1553 | NV dleft = 0.0; | |
6f1401dc DM |
1554 | SV * const svr = TOPs; |
1555 | SV * const svl = TOPm1s; | |
01f91bf2 | 1556 | if (SvIV_please_nomg(svr)) { |
800401ee | 1557 | right_neg = !SvUOK(svr); |
e2c88acc | 1558 | if (!right_neg) { |
800401ee | 1559 | right = SvUVX(svr); |
e2c88acc | 1560 | } else { |
800401ee | 1561 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1562 | if (biv >= 0) { |
1563 | right = biv; | |
1564 | right_neg = FALSE; /* effectively it's a UV now */ | |
1565 | } else { | |
02b08bbc | 1566 | right = (biv == IV_MIN) ? (UV)biv : (UV)(-biv); |
e2c88acc NC |
1567 | } |
1568 | } | |
1569 | } | |
1570 | else { | |
6f1401dc | 1571 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1572 | right_neg = dright < 0; |
1573 | if (right_neg) | |
1574 | dright = -dright; | |
e2c88acc NC |
1575 | if (dright < UV_MAX_P1) { |
1576 | right = U_V(dright); | |
1577 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1578 | } else { | |
1579 | use_double = TRUE; | |
1580 | } | |
787eafbd | 1581 | } |
a0d0e21e | 1582 | |
e2c88acc NC |
1583 | /* At this point use_double is only true if right is out of range for |
1584 | a UV. In range NV has been rounded down to nearest UV and | |
1585 | use_double false. */ | |
01f91bf2 | 1586 | if (!use_double && SvIV_please_nomg(svl)) { |
800401ee | 1587 | left_neg = !SvUOK(svl); |
e2c88acc | 1588 | if (!left_neg) { |
800401ee | 1589 | left = SvUVX(svl); |
e2c88acc | 1590 | } else { |
800401ee | 1591 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1592 | if (aiv >= 0) { |
1593 | left = aiv; | |
1594 | left_neg = FALSE; /* effectively it's a UV now */ | |
1595 | } else { | |
02b08bbc | 1596 | left = (aiv == IV_MIN) ? (UV)aiv : (UV)(-aiv); |
e2c88acc NC |
1597 | } |
1598 | } | |
e2c88acc | 1599 | } |
787eafbd | 1600 | else { |
6f1401dc | 1601 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1602 | left_neg = dleft < 0; |
1603 | if (left_neg) | |
1604 | dleft = -dleft; | |
68dc0745 | 1605 | |
e2c88acc NC |
1606 | /* This should be exactly the 5.6 behaviour - if left and right are |
1607 | both in range for UV then use U_V() rather than floor. */ | |
1608 | if (!use_double) { | |
1609 | if (dleft < UV_MAX_P1) { | |
1610 | /* right was in range, so is dleft, so use UVs not double. | |
1611 | */ | |
1612 | left = U_V(dleft); | |
1613 | } | |
1614 | /* left is out of range for UV, right was in range, so promote | |
1615 | right (back) to double. */ | |
1616 | else { | |
1617 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1618 | consistent with the implicit +0 floor in the U_V() | |
1619 | inside the #if 1. */ | |
1620 | dleft = Perl_floor(dleft + 0.5); | |
1621 | use_double = TRUE; | |
1622 | if (dright_valid) | |
1623 | dright = Perl_floor(dright + 0.5); | |
1624 | else | |
1625 | dright = right; | |
1626 | } | |
1627 | } | |
1628 | } | |
6f1401dc | 1629 | sp -= 2; |
787eafbd | 1630 | if (use_double) { |
65202027 | 1631 | NV dans; |
787eafbd | 1632 | |
659c4b96 | 1633 | if (!dright) |
cea2e8a9 | 1634 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1635 | |
65202027 | 1636 | dans = Perl_fmod(dleft, dright); |
659c4b96 | 1637 | if ((left_neg != right_neg) && dans) |
787eafbd IZ |
1638 | dans = dright - dans; |
1639 | if (right_neg) | |
1640 | dans = -dans; | |
1641 | sv_setnv(TARG, dans); | |
1642 | } | |
1643 | else { | |
1644 | UV ans; | |
1645 | ||
787eafbd | 1646 | if (!right) |
cea2e8a9 | 1647 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1648 | |
1649 | ans = left % right; | |
1650 | if ((left_neg != right_neg) && ans) | |
1651 | ans = right - ans; | |
1652 | if (right_neg) { | |
1653 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1654 | /* could change -foo to be (~foo)+1 instead */ | |
1655 | if (ans <= ~((UV)IV_MAX)+1) | |
1656 | sv_setiv(TARG, ~ans+1); | |
1657 | else | |
65202027 | 1658 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1659 | } |
1660 | else | |
1661 | sv_setuv(TARG, ans); | |
1662 | } | |
1663 | PUSHTARG; | |
1664 | RETURN; | |
79072805 | 1665 | } |
a0d0e21e | 1666 | } |
79072805 | 1667 | |
a0d0e21e LW |
1668 | PP(pp_repeat) |
1669 | { | |
20b7effb | 1670 | dSP; dATARGET; |
eb578fdb | 1671 | IV count; |
6f1401dc | 1672 | SV *sv; |
02a7a248 | 1673 | bool infnan = FALSE; |
490b24f6 | 1674 | const U8 gimme = GIMME_V; |
6f1401dc | 1675 | |
490b24f6 | 1676 | if (gimme == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
6f1401dc DM |
1677 | /* TODO: think of some way of doing list-repeat overloading ??? */ |
1678 | sv = POPs; | |
1679 | SvGETMAGIC(sv); | |
1680 | } | |
1681 | else { | |
3a100dab FC |
1682 | if (UNLIKELY(PL_op->op_private & OPpREPEAT_DOLIST)) { |
1683 | /* The parser saw this as a list repeat, and there | |
1684 | are probably several items on the stack. But we're | |
1685 | in scalar/void context, and there's no pp_list to save us | |
1686 | now. So drop the rest of the items -- robin@kitsite.com | |
1687 | */ | |
1688 | dMARK; | |
1689 | if (MARK + 1 < SP) { | |
1690 | MARK[1] = TOPm1s; | |
1691 | MARK[2] = TOPs; | |
1692 | } | |
1693 | else { | |
1694 | dTOPss; | |
1695 | ASSUME(MARK + 1 == SP); | |
1696 | XPUSHs(sv); | |
1697 | MARK[1] = &PL_sv_undef; | |
1698 | } | |
1699 | SP = MARK + 2; | |
1700 | } | |
6f1401dc DM |
1701 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); |
1702 | sv = POPs; | |
1703 | } | |
1704 | ||
2b573ace JH |
1705 | if (SvIOKp(sv)) { |
1706 | if (SvUOK(sv)) { | |
6f1401dc | 1707 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1708 | if (uv > IV_MAX) |
1709 | count = IV_MAX; /* The best we can do? */ | |
1710 | else | |
1711 | count = uv; | |
1712 | } else { | |
b3211734 | 1713 | count = SvIV_nomg(sv); |
2b573ace JH |
1714 | } |
1715 | } | |
1716 | else if (SvNOKp(sv)) { | |
02a7a248 JH |
1717 | const NV nv = SvNV_nomg(sv); |
1718 | infnan = Perl_isinfnan(nv); | |
1719 | if (UNLIKELY(infnan)) { | |
1720 | count = 0; | |
1721 | } else { | |
1722 | if (nv < 0.0) | |
1723 | count = -1; /* An arbitrary negative integer */ | |
1724 | else | |
1725 | count = (IV)nv; | |
1726 | } | |
2b573ace JH |
1727 | } |
1728 | else | |
02a7a248 | 1729 | count = SvIV_nomg(sv); |
6f1401dc | 1730 | |
02a7a248 JH |
1731 | if (infnan) { |
1732 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
1733 | "Non-finite repeat count does nothing"); | |
1734 | } else if (count < 0) { | |
b3211734 KW |
1735 | count = 0; |
1736 | Perl_ck_warner(aTHX_ packWARN(WARN_NUMERIC), | |
02a7a248 | 1737 | "Negative repeat count does nothing"); |
b3211734 KW |
1738 | } |
1739 | ||
490b24f6 | 1740 | if (gimme == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1741 | dMARK; |
052a7c76 | 1742 | const SSize_t items = SP - MARK; |
da9e430b | 1743 | const U8 mod = PL_op->op_flags & OPf_MOD; |
79072805 | 1744 | |
a0d0e21e | 1745 | if (count > 1) { |
052a7c76 | 1746 | SSize_t max; |
b3b27d01 | 1747 | |
052a7c76 DM |
1748 | if ( items > SSize_t_MAX / count /* max would overflow */ |
1749 | /* repeatcpy would overflow */ | |
1750 | || items > I32_MAX / (I32)sizeof(SV *) | |
b3b27d01 DM |
1751 | ) |
1752 | Perl_croak(aTHX_ "%s","Out of memory during list extend"); | |
1753 | max = items * count; | |
1754 | MEXTEND(MARK, max); | |
1755 | ||
a0d0e21e | 1756 | while (SP > MARK) { |
60779a30 DM |
1757 | if (*SP) { |
1758 | if (mod && SvPADTMP(*SP)) { | |
da9e430b | 1759 | *SP = sv_mortalcopy(*SP); |
60779a30 | 1760 | } |
976c8a39 | 1761 | SvTEMP_off((*SP)); |
da9e430b | 1762 | } |
a0d0e21e | 1763 | SP--; |
79072805 | 1764 | } |
a0d0e21e LW |
1765 | MARK++; |
1766 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1767 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1768 | SP += max; |
79072805 | 1769 | } |
a0d0e21e | 1770 | else if (count <= 0) |
052a7c76 | 1771 | SP = MARK; |
79072805 | 1772 | } |
a0d0e21e | 1773 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1774 | SV * const tmpstr = POPs; |
a0d0e21e | 1775 | STRLEN len; |
9b877dbb | 1776 | bool isutf; |
a0d0e21e | 1777 | |
6f1401dc DM |
1778 | if (TARG != tmpstr) |
1779 | sv_setsv_nomg(TARG, tmpstr); | |
1780 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1781 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1782 | if (count != 1) { |
1783 | if (count < 1) | |
1784 | SvCUR_set(TARG, 0); | |
1785 | else { | |
b3b27d01 DM |
1786 | STRLEN max; |
1787 | ||
1788 | if ( len > (MEM_SIZE_MAX-1) / (UV)count /* max would overflow */ | |
1789 | || len > (U32)I32_MAX /* repeatcpy would overflow */ | |
1790 | ) | |
1791 | Perl_croak(aTHX_ "%s", | |
1792 | "Out of memory during string extend"); | |
1793 | max = (UV)count * len + 1; | |
1794 | SvGROW(TARG, max); | |
1795 | ||
a0d0e21e | 1796 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1797 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1798 | } |
a0d0e21e | 1799 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1800 | } |
dfcb284a GS |
1801 | if (isutf) |
1802 | (void)SvPOK_only_UTF8(TARG); | |
1803 | else | |
1804 | (void)SvPOK_only(TARG); | |
b80b6069 | 1805 | |
a0d0e21e | 1806 | PUSHTARG; |
79072805 | 1807 | } |
a0d0e21e LW |
1808 | RETURN; |
1809 | } | |
79072805 | 1810 | |
a0d0e21e LW |
1811 | PP(pp_subtract) |
1812 | { | |
20b7effb | 1813 | dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1814 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1815 | svr = TOPs; | |
1816 | svl = TOPm1s; | |
230ee21f | 1817 | |
28e5dec8 | 1818 | #ifdef PERL_PRESERVE_IVUV |
230ee21f DM |
1819 | |
1820 | /* special-case some simple common cases */ | |
1821 | if (!((svl->sv_flags|svr->sv_flags) & (SVf_IVisUV|SVs_GMG))) { | |
1822 | IV il, ir; | |
1823 | U32 flags = (svl->sv_flags & svr->sv_flags); | |
1824 | if (flags & SVf_IOK) { | |
1825 | /* both args are simple IVs */ | |
1826 | UV topl, topr; | |
1827 | il = SvIVX(svl); | |
1828 | ir = SvIVX(svr); | |
1829 | do_iv: | |
1830 | topl = ((UV)il) >> (UVSIZE * 8 - 2); | |
1831 | topr = ((UV)ir) >> (UVSIZE * 8 - 2); | |
1832 | ||
1833 | /* if both are in a range that can't under/overflow, do a | |
1834 | * simple integer subtract: if the top of both numbers | |
1835 | * are 00 or 11, then it's safe */ | |
1836 | if (!( ((topl+1) | (topr+1)) & 2)) { | |
1837 | SP--; | |
1838 | TARGi(il - ir, 0); /* args not GMG, so can't be tainted */ | |
1839 | SETs(TARG); | |
1840 | RETURN; | |
1841 | } | |
1842 | goto generic; | |
1843 | } | |
1844 | else if (flags & SVf_NOK) { | |
1845 | /* both args are NVs */ | |
1846 | NV nl = SvNVX(svl); | |
1847 | NV nr = SvNVX(svr); | |
1848 | ||
3336af0b DD |
1849 | if ( |
1850 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
1851 | !Perl_isnan(nl) && nl == (NV)(il = (IV)nl) | |
1852 | && !Perl_isnan(nr) && nr == (NV)(ir = (IV)nr) | |
1853 | #else | |
1854 | nl == (NV)(il = (IV)nl) && nr == (NV)(ir = (IV)nr) | |
1855 | #endif | |
1856 | ) | |
230ee21f DM |
1857 | /* nothing was lost by converting to IVs */ |
1858 | goto do_iv; | |
1859 | SP--; | |
1860 | TARGn(nl - nr, 0); /* args not GMG, so can't be tainted */ | |
1861 | SETs(TARG); | |
1862 | RETURN; | |
1863 | } | |
1864 | } | |
1865 | ||
1866 | generic: | |
1867 | ||
1868 | useleft = USE_LEFT(svl); | |
7dca457a NC |
1869 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1870 | "bad things" happen if you rely on signed integers wrapping. */ | |
01f91bf2 | 1871 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1872 | /* Unless the left argument is integer in range we are going to have to |
1873 | use NV maths. Hence only attempt to coerce the right argument if | |
1874 | we know the left is integer. */ | |
eb578fdb | 1875 | UV auv = 0; |
9c5ffd7c | 1876 | bool auvok = FALSE; |
7dca457a NC |
1877 | bool a_valid = 0; |
1878 | ||
28e5dec8 | 1879 | if (!useleft) { |
7dca457a NC |
1880 | auv = 0; |
1881 | a_valid = auvok = 1; | |
1882 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1883 | } else { |
1884 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1885 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1886 | if ((auvok = SvUOK(svl))) |
1887 | auv = SvUVX(svl); | |
7dca457a | 1888 | else { |
eb578fdb | 1889 | const IV aiv = SvIVX(svl); |
7dca457a NC |
1890 | if (aiv >= 0) { |
1891 | auv = aiv; | |
1892 | auvok = 1; /* Now acting as a sign flag. */ | |
1893 | } else { /* 2s complement assumption for IV_MIN */ | |
53e2bfb7 | 1894 | auv = (aiv == IV_MIN) ? (UV)aiv : (UV)-aiv; |
28e5dec8 | 1895 | } |
7dca457a NC |
1896 | } |
1897 | a_valid = 1; | |
1898 | } | |
1899 | } | |
1900 | if (a_valid) { | |
1901 | bool result_good = 0; | |
1902 | UV result; | |
eb578fdb | 1903 | UV buv; |
800401ee | 1904 | bool buvok = SvUOK(svr); |
9041c2e3 | 1905 | |
7dca457a | 1906 | if (buvok) |
800401ee | 1907 | buv = SvUVX(svr); |
7dca457a | 1908 | else { |
eb578fdb | 1909 | const IV biv = SvIVX(svr); |
7dca457a NC |
1910 | if (biv >= 0) { |
1911 | buv = biv; | |
1912 | buvok = 1; | |
1913 | } else | |
53e2bfb7 | 1914 | buv = (biv == IV_MIN) ? (UV)biv : (UV)-biv; |
7dca457a NC |
1915 | } |
1916 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1917 | else "IV" now, independent of how it came in. |
7dca457a NC |
1918 | if a, b represents positive, A, B negative, a maps to -A etc |
1919 | a - b => (a - b) | |
1920 | A - b => -(a + b) | |
1921 | a - B => (a + b) | |
1922 | A - B => -(a - b) | |
1923 | all UV maths. negate result if A negative. | |
1924 | subtract if signs same, add if signs differ. */ | |
1925 | ||
1926 | if (auvok ^ buvok) { | |
1927 | /* Signs differ. */ | |
1928 | result = auv + buv; | |
1929 | if (result >= auv) | |
1930 | result_good = 1; | |
1931 | } else { | |
1932 | /* Signs same */ | |
1933 | if (auv >= buv) { | |
1934 | result = auv - buv; | |
1935 | /* Must get smaller */ | |
1936 | if (result <= auv) | |
1937 | result_good = 1; | |
1938 | } else { | |
1939 | result = buv - auv; | |
1940 | if (result <= buv) { | |
1941 | /* result really should be -(auv-buv). as its negation | |
1942 | of true value, need to swap our result flag */ | |
1943 | auvok = !auvok; | |
1944 | result_good = 1; | |
28e5dec8 | 1945 | } |
28e5dec8 JH |
1946 | } |
1947 | } | |
7dca457a NC |
1948 | if (result_good) { |
1949 | SP--; | |
1950 | if (auvok) | |
1951 | SETu( result ); | |
1952 | else { | |
1953 | /* Negate result */ | |
1954 | if (result <= (UV)IV_MIN) | |
53e2bfb7 DM |
1955 | SETi(result == (UV)IV_MIN |
1956 | ? IV_MIN : -(IV)result); | |
7dca457a NC |
1957 | else { |
1958 | /* result valid, but out of range for IV. */ | |
1959 | SETn( -(NV)result ); | |
1960 | } | |
1961 | } | |
1962 | RETURN; | |
1963 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1964 | } |
1965 | } | |
230ee21f DM |
1966 | #else |
1967 | useleft = USE_LEFT(svl); | |
28e5dec8 | 1968 | #endif |
a0d0e21e | 1969 | { |
6f1401dc | 1970 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1971 | (void)POPs; |
1972 | ||
28e5dec8 JH |
1973 | if (!useleft) { |
1974 | /* left operand is undef, treat as zero - value */ | |
1975 | SETn(-value); | |
1976 | RETURN; | |
1977 | } | |
6f1401dc | 1978 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1979 | RETURN; |
79072805 | 1980 | } |
a0d0e21e | 1981 | } |
79072805 | 1982 | |
b3498293 JH |
1983 | #define IV_BITS (IVSIZE * 8) |
1984 | ||
1985 | static UV S_uv_shift(UV uv, int shift, bool left) | |
1986 | { | |
1987 | if (shift < 0) { | |
1988 | shift = -shift; | |
1989 | left = !left; | |
1990 | } | |
1991 | if (shift >= IV_BITS) { | |
1992 | return 0; | |
1993 | } | |
1994 | return left ? uv << shift : uv >> shift; | |
1995 | } | |
1996 | ||
1997 | static IV S_iv_shift(IV iv, int shift, bool left) | |
1998 | { | |
1999 | if (shift < 0) { | |
2000 | shift = -shift; | |
2001 | left = !left; | |
2002 | } | |
2003 | if (shift >= IV_BITS) { | |
b69687e7 | 2004 | return iv < 0 && !left ? -1 : 0; |
b3498293 JH |
2005 | } |
2006 | return left ? iv << shift : iv >> shift; | |
2007 | } | |
2008 | ||
2009 | #define UV_LEFT_SHIFT(uv, shift) S_uv_shift(uv, shift, TRUE) | |
2010 | #define UV_RIGHT_SHIFT(uv, shift) S_uv_shift(uv, shift, FALSE) | |
2011 | #define IV_LEFT_SHIFT(iv, shift) S_iv_shift(iv, shift, TRUE) | |
2012 | #define IV_RIGHT_SHIFT(iv, shift) S_iv_shift(iv, shift, FALSE) | |
2013 | ||
a0d0e21e LW |
2014 | PP(pp_left_shift) |
2015 | { | |
20b7effb | 2016 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2017 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2018 | svr = POPs; |
2019 | svl = TOPs; | |
a0d0e21e | 2020 | { |
6f1401dc | 2021 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2022 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2023 | SETi(IV_LEFT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2024 | } |
2025 | else { | |
b3498293 | 2026 | SETu(UV_LEFT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2027 | } |
55497cff | 2028 | RETURN; |
79072805 | 2029 | } |
a0d0e21e | 2030 | } |
79072805 | 2031 | |
a0d0e21e LW |
2032 | PP(pp_right_shift) |
2033 | { | |
20b7effb | 2034 | dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 2035 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
2036 | svr = POPs; |
2037 | svl = TOPs; | |
a0d0e21e | 2038 | { |
6f1401dc | 2039 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 2040 | if (PL_op->op_private & HINT_INTEGER) { |
b3498293 | 2041 | SETi(IV_RIGHT_SHIFT(SvIV_nomg(svl), shift)); |
d0ba1bd2 JH |
2042 | } |
2043 | else { | |
b3498293 | 2044 | SETu(UV_RIGHT_SHIFT(SvUV_nomg(svl), shift)); |
d0ba1bd2 | 2045 | } |
a0d0e21e | 2046 | RETURN; |
93a17b20 | 2047 | } |
79072805 LW |
2048 | } |
2049 | ||
a0d0e21e | 2050 | PP(pp_lt) |
79072805 | 2051 | { |
20b7effb | 2052 | dSP; |
33efebe6 DM |
2053 | SV *left, *right; |
2054 | ||
a42d0242 | 2055 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
2056 | right = POPs; |
2057 | left = TOPs; | |
2058 | SETs(boolSV( | |
2059 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2060 | ? (SvIVX(left) < SvIVX(right)) | |
2061 | : (do_ncmp(left, right) == -1) | |
2062 | )); | |
2063 | RETURN; | |
a0d0e21e | 2064 | } |
79072805 | 2065 | |
a0d0e21e LW |
2066 | PP(pp_gt) |
2067 | { | |
20b7effb | 2068 | dSP; |
33efebe6 | 2069 | SV *left, *right; |
1b6737cc | 2070 | |
33efebe6 DM |
2071 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
2072 | right = POPs; | |
2073 | left = TOPs; | |
2074 | SETs(boolSV( | |
2075 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2076 | ? (SvIVX(left) > SvIVX(right)) | |
2077 | : (do_ncmp(left, right) == 1) | |
2078 | )); | |
2079 | RETURN; | |
a0d0e21e LW |
2080 | } |
2081 | ||
2082 | PP(pp_le) | |
2083 | { | |
20b7effb | 2084 | dSP; |
33efebe6 | 2085 | SV *left, *right; |
1b6737cc | 2086 | |
33efebe6 DM |
2087 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
2088 | right = POPs; | |
2089 | left = TOPs; | |
2090 | SETs(boolSV( | |
2091 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2092 | ? (SvIVX(left) <= SvIVX(right)) | |
2093 | : (do_ncmp(left, right) <= 0) | |
2094 | )); | |
2095 | RETURN; | |
a0d0e21e LW |
2096 | } |
2097 | ||
2098 | PP(pp_ge) | |
2099 | { | |
20b7effb | 2100 | dSP; |
33efebe6 DM |
2101 | SV *left, *right; |
2102 | ||
2103 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
2104 | right = POPs; | |
2105 | left = TOPs; | |
2106 | SETs(boolSV( | |
2107 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2108 | ? (SvIVX(left) >= SvIVX(right)) | |
2109 | : ( (do_ncmp(left, right) & 2) == 0) | |
2110 | )); | |
2111 | RETURN; | |
2112 | } | |
1b6737cc | 2113 | |
33efebe6 DM |
2114 | PP(pp_ne) |
2115 | { | |
20b7effb | 2116 | dSP; |
33efebe6 DM |
2117 | SV *left, *right; |
2118 | ||
2119 | tryAMAGICbin_MG(ne_amg, AMGf_set|AMGf_numeric); | |
2120 | right = POPs; | |
2121 | left = TOPs; | |
2122 | SETs(boolSV( | |
2123 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
2124 | ? (SvIVX(left) != SvIVX(right)) | |
2125 | : (do_ncmp(left, right) != 0) | |
2126 | )); | |
2127 | RETURN; | |
2128 | } | |
1b6737cc | 2129 | |
33efebe6 DM |
2130 | /* compare left and right SVs. Returns: |
2131 | * -1: < | |
2132 | * 0: == | |
2133 | * 1: > | |
2134 | * 2: left or right was a NaN | |
2135 | */ | |
2136 | I32 | |
2137 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
2138 | { | |
33efebe6 DM |
2139 | PERL_ARGS_ASSERT_DO_NCMP; |
2140 | #ifdef PERL_PRESERVE_IVUV | |
33efebe6 | 2141 | /* Fortunately it seems NaN isn't IOK */ |
01f91bf2 | 2142 | if (SvIV_please_nomg(right) && SvIV_please_nomg(left)) { |
33efebe6 DM |
2143 | if (!SvUOK(left)) { |
2144 | const IV leftiv = SvIVX(left); | |
2145 | if (!SvUOK(right)) { | |
2146 | /* ## IV <=> IV ## */ | |
2147 | const IV rightiv = SvIVX(right); | |
2148 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2149 | } |
33efebe6 DM |
2150 | /* ## IV <=> UV ## */ |
2151 | if (leftiv < 0) | |
2152 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2153 | return -1; | |
2154 | { | |
2155 | const UV rightuv = SvUVX(right); | |
2156 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2157 | } |
28e5dec8 | 2158 | } |
79072805 | 2159 | |
33efebe6 DM |
2160 | if (SvUOK(right)) { |
2161 | /* ## UV <=> UV ## */ | |
2162 | const UV leftuv = SvUVX(left); | |
2163 | const UV rightuv = SvUVX(right); | |
2164 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2165 | } |
33efebe6 DM |
2166 | /* ## UV <=> IV ## */ |
2167 | { | |
2168 | const IV rightiv = SvIVX(right); | |
2169 | if (rightiv < 0) | |
2170 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2171 | return 1; | |
2172 | { | |
2173 | const UV leftuv = SvUVX(left); | |
2174 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2175 | } |
28e5dec8 | 2176 | } |
e5964223 | 2177 | NOT_REACHED; /* NOTREACHED */ |
28e5dec8 JH |
2178 | } |
2179 | #endif | |
a0d0e21e | 2180 | { |
33efebe6 DM |
2181 | NV const rnv = SvNV_nomg(right); |
2182 | NV const lnv = SvNV_nomg(left); | |
2183 | ||
cab190d4 | 2184 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2185 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2186 | return 2; | |
2187 | } | |
2188 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2189 | #else |
33efebe6 DM |
2190 | if (lnv < rnv) |
2191 | return -1; | |
2192 | if (lnv > rnv) | |
2193 | return 1; | |
659c4b96 | 2194 | if (lnv == rnv) |
33efebe6 DM |
2195 | return 0; |
2196 | return 2; | |
cab190d4 | 2197 | #endif |
a0d0e21e | 2198 | } |
79072805 LW |
2199 | } |
2200 | ||
33efebe6 | 2201 | |
a0d0e21e | 2202 | PP(pp_ncmp) |
79072805 | 2203 | { |
20b7effb | 2204 | dSP; |
33efebe6 DM |
2205 | SV *left, *right; |
2206 | I32 value; | |
a42d0242 | 2207 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2208 | right = POPs; |
2209 | left = TOPs; | |
2210 | value = do_ncmp(left, right); | |
2211 | if (value == 2) { | |
3280af22 | 2212 | SETs(&PL_sv_undef); |
79072805 | 2213 | } |
33efebe6 DM |
2214 | else { |
2215 | dTARGET; | |
2216 | SETi(value); | |
2217 | } | |
2218 | RETURN; | |
a0d0e21e | 2219 | } |
79072805 | 2220 | |
b1c05ba5 DM |
2221 | |
2222 | /* also used for: pp_sge() pp_sgt() pp_slt() */ | |
2223 | ||
afd9910b | 2224 | PP(pp_sle) |
a0d0e21e | 2225 | { |
20b7effb | 2226 | dSP; |
79072805 | 2227 | |
afd9910b NC |
2228 | int amg_type = sle_amg; |
2229 | int multiplier = 1; | |
2230 | int rhs = 1; | |
79072805 | 2231 | |
afd9910b NC |
2232 | switch (PL_op->op_type) { |
2233 | case OP_SLT: | |
2234 | amg_type = slt_amg; | |
2235 | /* cmp < 0 */ | |
2236 | rhs = 0; | |
2237 | break; | |
2238 | case OP_SGT: | |
2239 | amg_type = sgt_amg; | |
2240 | /* cmp > 0 */ | |
2241 | multiplier = -1; | |
2242 | rhs = 0; | |
2243 | break; | |
2244 | case OP_SGE: | |
2245 | amg_type = sge_amg; | |
2246 | /* cmp >= 0 */ | |
2247 | multiplier = -1; | |
2248 | break; | |
79072805 | 2249 | } |
79072805 | 2250 | |
6f1401dc | 2251 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2252 | { |
2253 | dPOPTOPssrl; | |
130c5df3 | 2254 | const int cmp = |
5778acb6 | 2255 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2256 | (IN_LC_RUNTIME(LC_COLLATE)) |
2257 | ? sv_cmp_locale_flags(left, right, 0) | |
2258 | : | |
2259 | #endif | |
2260 | sv_cmp_flags(left, right, 0); | |
afd9910b | 2261 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2262 | RETURN; |
2263 | } | |
2264 | } | |
79072805 | 2265 | |
36477c24 | 2266 | PP(pp_seq) |
2267 | { | |
20b7effb | 2268 | dSP; |
6f1401dc | 2269 | tryAMAGICbin_MG(seq_amg, AMGf_set); |
36477c24 | 2270 | { |
2271 | dPOPTOPssrl; | |
078504b2 | 2272 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2273 | RETURN; |
2274 | } | |
2275 | } | |
79072805 | 2276 | |
a0d0e21e | 2277 | PP(pp_sne) |
79072805 | 2278 | { |
20b7effb | 2279 | dSP; |
6f1401dc | 2280 | tryAMAGICbin_MG(sne_amg, AMGf_set); |
a0d0e21e LW |
2281 | { |
2282 | dPOPTOPssrl; | |
078504b2 | 2283 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2284 | RETURN; |
463ee0b2 | 2285 | } |
79072805 LW |
2286 | } |
2287 | ||
a0d0e21e | 2288 | PP(pp_scmp) |
79072805 | 2289 | { |
20b7effb | 2290 | dSP; dTARGET; |
6f1401dc | 2291 | tryAMAGICbin_MG(scmp_amg, 0); |
a0d0e21e LW |
2292 | { |
2293 | dPOPTOPssrl; | |
130c5df3 | 2294 | const int cmp = |
5778acb6 | 2295 | #ifdef USE_LOCALE_COLLATE |
130c5df3 KW |
2296 | (IN_LC_RUNTIME(LC_COLLATE)) |
2297 | ? sv_cmp_locale_flags(left, right, 0) | |
2298 | : | |
2299 | #endif | |
2300 | sv_cmp_flags(left, right, 0); | |
bbce6d69 | 2301 | SETi( cmp ); |
a0d0e21e LW |
2302 | RETURN; |
2303 | } | |
2304 | } | |
79072805 | 2305 | |
55497cff | 2306 | PP(pp_bit_and) |
2307 | { | |
20b7effb | 2308 | dSP; dATARGET; |
6f1401dc | 2309 | tryAMAGICbin_MG(band_amg, AMGf_assign); |
a0d0e21e LW |
2310 | { |
2311 | dPOPTOPssrl; | |
4633a7c4 | 2312 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2313 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2314 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2315 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2316 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2317 | SETi(i); |
d0ba1bd2 JH |
2318 | } |
2319 | else { | |
1b6737cc | 2320 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2321 | SETu(u); |
d0ba1bd2 | 2322 | } |
5ee80e13 | 2323 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2324 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2325 | } |
2326 | else { | |
533c011a | 2327 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2328 | SETTARG; |
2329 | } | |
2330 | RETURN; | |
2331 | } | |
2332 | } | |
79072805 | 2333 | |
5d01050a FC |
2334 | PP(pp_nbit_and) |
2335 | { | |
2336 | dSP; | |
636ac8fc | 2337 | tryAMAGICbin_MG(band_amg, AMGf_assign|AMGf_numarg); |
5d01050a FC |
2338 | { |
2339 | dATARGET; dPOPTOPssrl; | |
2340 | if (PL_op->op_private & HINT_INTEGER) { | |
2341 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); | |
2342 | SETi(i); | |
2343 | } | |
2344 | else { | |
2345 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); | |
2346 | SETu(u); | |
2347 | } | |
2348 | } | |
2349 | RETURN; | |
2350 | } | |
2351 | ||
2352 | PP(pp_sbit_and) | |
2353 | { | |
2354 | dSP; | |
2355 | tryAMAGICbin_MG(sband_amg, AMGf_assign); | |
2356 | { | |
2357 | dATARGET; dPOPTOPssrl; | |
2358 | do_vop(OP_BIT_AND, TARG, left, right); | |
2359 | RETSETTARG; | |
2360 | } | |
2361 | } | |
b1c05ba5 DM |
2362 | |
2363 | /* also used for: pp_bit_xor() */ | |
2364 | ||
a0d0e21e LW |
2365 | PP(pp_bit_or) |
2366 | { | |
20b7effb | 2367 | dSP; dATARGET; |
3658c1f1 NC |
2368 | const int op_type = PL_op->op_type; |
2369 | ||
6f1401dc | 2370 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2371 | { |
2372 | dPOPTOPssrl; | |
4633a7c4 | 2373 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2374 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2375 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2376 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2377 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2378 | const IV r = SvIV_nomg(right); | |
2379 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2380 | SETi(result); | |
d0ba1bd2 JH |
2381 | } |
2382 | else { | |
3658c1f1 NC |
2383 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2384 | const UV r = SvUV_nomg(right); | |
2385 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2386 | SETu(result); | |
d0ba1bd2 | 2387 | } |
5ee80e13 | 2388 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2389 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2390 | } |
2391 | else { | |
3658c1f1 | 2392 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2393 | SETTARG; |
2394 | } | |
2395 | RETURN; | |
79072805 | 2396 | } |
a0d0e21e | 2397 | } |
79072805 | 2398 | |
5d01050a FC |
2399 | /* also used for: pp_nbit_xor() */ |
2400 | ||
2401 | PP(pp_nbit_or) | |
2402 | { | |
2403 | dSP; | |
2404 | const int op_type = PL_op->op_type; | |
2405 | ||
2406 | tryAMAGICbin_MG((op_type == OP_NBIT_OR ? bor_amg : bxor_amg), | |
636ac8fc | 2407 | AMGf_assign|AMGf_numarg); |
5d01050a FC |
2408 | { |
2409 | dATARGET; dPOPTOPssrl; | |
2410 | if (PL_op->op_private & HINT_INTEGER) { | |
2411 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); | |
2412 | const IV r = SvIV_nomg(right); | |
2413 | const IV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2414 | SETi(result); | |
2415 | } | |
2416 | else { | |
2417 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); | |
2418 | const UV r = SvUV_nomg(right); | |
2419 | const UV result = op_type == OP_NBIT_OR ? (l | r) : (l ^ r); | |
2420 | SETu(result); | |
2421 | } | |
2422 | } | |
2423 | RETURN; | |
2424 | } | |
2425 | ||
2426 | /* also used for: pp_sbit_xor() */ | |
2427 | ||
2428 | PP(pp_sbit_or) | |
2429 | { | |
2430 | dSP; | |
2431 | const int op_type = PL_op->op_type; | |
2432 | ||
2433 | tryAMAGICbin_MG((op_type == OP_SBIT_OR ? sbor_amg : sbxor_amg), | |
2434 | AMGf_assign); | |
2435 | { | |
2436 | dATARGET; dPOPTOPssrl; | |
2437 | do_vop(op_type == OP_SBIT_OR ? OP_BIT_OR : OP_BIT_XOR, TARG, left, | |
2438 | right); | |
2439 | RETSETTARG; | |
2440 | } | |
2441 | } | |
2442 | ||
1c2b3fd6 FC |
2443 | PERL_STATIC_INLINE bool |
2444 | S_negate_string(pTHX) | |
2445 | { | |
2446 | dTARGET; dSP; | |
2447 | STRLEN len; | |
2448 | const char *s; | |
2449 | SV * const sv = TOPs; | |
2450 | if (!SvPOKp(sv) || SvNIOK(sv) || (!SvPOK(sv) && SvNIOKp(sv))) | |
2451 | return FALSE; | |
2452 | s = SvPV_nomg_const(sv, len); | |
2453 | if (isIDFIRST(*s)) { | |
2454 | sv_setpvs(TARG, "-"); | |
2455 | sv_catsv(TARG, sv); | |
2456 | } | |
2457 | else if (*s == '+' || (*s == '-' && !looks_like_number(sv))) { | |
2458 | sv_setsv_nomg(TARG, sv); | |
2459 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
2460 | } | |
2461 | else return FALSE; | |
245d035e | 2462 | SETTARG; |
1c2b3fd6 FC |
2463 | return TRUE; |
2464 | } | |
2465 | ||
a0d0e21e LW |
2466 | PP(pp_negate) |
2467 | { | |
20b7effb | 2468 | dSP; dTARGET; |
6f1401dc | 2469 | tryAMAGICun_MG(neg_amg, AMGf_numeric); |
1c2b3fd6 | 2470 | if (S_negate_string(aTHX)) return NORMAL; |
a0d0e21e | 2471 | { |
6f1401dc | 2472 | SV * const sv = TOPs; |
a5b92898 | 2473 | |
d96ab1b5 | 2474 | if (SvIOK(sv)) { |
7dbe3150 | 2475 | /* It's publicly an integer */ |
28e5dec8 | 2476 | oops_its_an_int: |
9b0e499b GS |
2477 | if (SvIsUV(sv)) { |
2478 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2479 | /* 2s complement assumption. */ |
d14578b8 KW |
2480 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == |
2481 | IV_MIN */ | |
245d035e | 2482 | return NORMAL; |
9b0e499b GS |
2483 | } |
2484 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2485 | SETi(-SvIVX(sv)); |
245d035e | 2486 | return NORMAL; |
9b0e499b GS |
2487 | } |
2488 | } | |
2489 | else if (SvIVX(sv) != IV_MIN) { | |
2490 | SETi(-SvIVX(sv)); | |
245d035e | 2491 | return NORMAL; |
9b0e499b | 2492 | } |
28e5dec8 JH |
2493 | #ifdef PERL_PRESERVE_IVUV |
2494 | else { | |
2495 | SETu((UV)IV_MIN); | |
245d035e | 2496 | return NORMAL; |
28e5dec8 JH |
2497 | } |
2498 | #endif | |
9b0e499b | 2499 | } |
8a5decd8 | 2500 | if (SvNIOKp(sv) && (SvNIOK(sv) || !SvPOK(sv))) |
6f1401dc | 2501 | SETn(-SvNV_nomg(sv)); |
1c2b3fd6 | 2502 | else if (SvPOKp(sv) && SvIV_please_nomg(sv)) |
8eb28a70 | 2503 | goto oops_its_an_int; |
4633a7c4 | 2504 | else |
6f1401dc | 2505 | SETn(-SvNV_nomg(sv)); |
79072805 | 2506 | } |
245d035e | 2507 | return NORMAL; |
79072805 LW |
2508 | } |
2509 | ||
a0d0e21e | 2510 | PP(pp_not) |
79072805 | 2511 | { |
20b7effb | 2512 | dSP; |
f4c975aa DM |
2513 | SV *sv; |
2514 | ||
6f1401dc | 2515 | tryAMAGICun_MG(not_amg, AMGf_set); |
f4c975aa DM |
2516 | sv = *PL_stack_sp; |
2517 | *PL_stack_sp = boolSV(!SvTRUE_nomg_NN(sv)); | |
a0d0e21e | 2518 | return NORMAL; |
79072805 LW |
2519 | } |
2520 | ||
5d01050a FC |
2521 | static void |
2522 | S_scomplement(pTHX_ SV *targ, SV *sv) | |
79072805 | 2523 | { |
eb578fdb KW |
2524 | U8 *tmps; |
2525 | I32 anum; | |
a0d0e21e LW |
2526 | STRLEN len; |
2527 | ||
85b0ee6e FC |
2528 | sv_copypv_nomg(TARG, sv); |
2529 | tmps = (U8*)SvPV_nomg(TARG, len); | |
08b6664b | 2530 | |
1d68d6cd | 2531 | if (SvUTF8(TARG)) { |
08b6664b | 2532 | if (len && ! utf8_to_bytes(tmps, &len)) { |
814eedc8 | 2533 | Perl_croak(aTHX_ FATAL_ABOVE_FF_MSG, PL_op_desc[PL_op->op_type]); |
08b6664b KW |
2534 | } |
2535 | SvCUR(TARG) = len; | |
2536 | SvUTF8_off(TARG); | |
2537 | } | |
2538 | ||
2539 | anum = len; | |
1d68d6cd | 2540 | |
a0d0e21e | 2541 | #ifdef LIBERAL |
51723571 | 2542 | { |
eb578fdb | 2543 | long *tmpl; |
51723571 JH |
2544 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) |
2545 | *tmps = ~*tmps; | |
2546 | tmpl = (long*)tmps; | |
bb7a0f54 | 2547 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2548 | *tmpl = ~*tmpl; |
2549 | tmps = (U8*)tmpl; | |
2550 | } | |
a0d0e21e LW |
2551 | #endif |
2552 | for ( ; anum > 0; anum--, tmps++) | |
2553 | *tmps = ~*tmps; | |
5d01050a FC |
2554 | } |
2555 | ||
2556 | PP(pp_complement) | |
2557 | { | |
2558 | dSP; dTARGET; | |
2559 | tryAMAGICun_MG(compl_amg, AMGf_numeric); | |
2560 | { | |
2561 | dTOPss; | |
2562 | if (SvNIOKp(sv)) { | |
2563 | if (PL_op->op_private & HINT_INTEGER) { | |
2564 | const IV i = ~SvIV_nomg(sv); | |
2565 | SETi(i); | |
2566 | } | |
2567 | else { | |
2568 | const UV u = ~SvUV_nomg(sv); | |
2569 | SETu(u); | |
2570 | } | |
2571 | } | |
2572 | else { | |
2573 | S_scomplement(aTHX_ TARG, sv); | |
ec93b65f | 2574 | SETTARG; |
a0d0e21e | 2575 | } |
24840750 | 2576 | return NORMAL; |
5d01050a FC |
2577 | } |
2578 | } | |
2579 | ||
2580 | PP(pp_ncomplement) | |
2581 | { | |
2582 | dSP; | |
636ac8fc | 2583 | tryAMAGICun_MG(compl_amg, AMGf_numeric|AMGf_numarg); |
5d01050a FC |
2584 | { |
2585 | dTARGET; dTOPss; | |
2586 | if (PL_op->op_private & HINT_INTEGER) { | |
2587 | const IV i = ~SvIV_nomg(sv); | |
2588 | SETi(i); | |
2589 | } | |
2590 | else { | |
2591 | const UV u = ~SvUV_nomg(sv); | |
2592 | SETu(u); | |
2593 | } | |
2594 | } | |
2595 | return NORMAL; | |
2596 | } | |
2597 | ||
2598 | PP(pp_scomplement) | |
2599 | { | |
2600 | dSP; | |
2601 | tryAMAGICun_MG(scompl_amg, AMGf_numeric); | |
2602 | { | |
2603 | dTARGET; dTOPss; | |
2604 | S_scomplement(aTHX_ TARG, sv); | |
2605 | SETTARG; | |
2606 | return NORMAL; | |
a0d0e21e | 2607 | } |
79072805 LW |
2608 | } |
2609 | ||
a0d0e21e LW |
2610 | /* integer versions of some of the above */ |
2611 | ||
a0d0e21e | 2612 | PP(pp_i_multiply) |
79072805 | 2613 | { |
20b7effb | 2614 | dSP; dATARGET; |
6f1401dc | 2615 | tryAMAGICbin_MG(mult_amg, AMGf_assign); |
a0d0e21e | 2616 | { |
6f1401dc | 2617 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2618 | SETi( left * right ); |
2619 | RETURN; | |
2620 | } | |
79072805 LW |
2621 | } |
2622 | ||
a0d0e21e | 2623 | PP(pp_i_divide) |
79072805 | 2624 | { |
85935d8e | 2625 | IV num; |
20b7effb | 2626 | dSP; dATARGET; |
6f1401dc | 2627 | tryAMAGICbin_MG(div_amg, AMGf_assign); |
a0d0e21e | 2628 | { |
6f1401dc | 2629 | dPOPTOPssrl; |
85935d8e | 2630 | IV value = SvIV_nomg(right); |
a0d0e21e | 2631 | if (value == 0) |
ece1bcef | 2632 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2633 | num = SvIV_nomg(left); |
a0cec769 YST |
2634 | |
2635 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2636 | if (value == -1) | |
2637 | value = - num; | |
2638 | else | |
2639 | value = num / value; | |
6f1401dc | 2640 | SETi(value); |
a0d0e21e LW |
2641 | RETURN; |
2642 | } | |
79072805 LW |
2643 | } |
2644 | ||
befad5d1 | 2645 | PP(pp_i_modulo) |
224ec323 JH |
2646 | { |
2647 | /* This is the vanilla old i_modulo. */ | |
20b7effb | 2648 | dSP; dATARGET; |
6f1401dc | 2649 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2650 | { |
6f1401dc | 2651 | dPOPTOPiirl_nomg; |
224ec323 JH |
2652 | if (!right) |
2653 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2654 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2655 | if (right == -1) | |
2656 | SETi( 0 ); | |
2657 | else | |
2658 | SETi( left % right ); | |
224ec323 JH |
2659 | RETURN; |
2660 | } | |
2661 | } | |
2662 | ||
0927ade0 | 2663 | #if defined(__GLIBC__) && IVSIZE == 8 \ |
bf3d06aa | 2664 | && ( __GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 8)) |
befad5d1 | 2665 | |
0927ade0 | 2666 | PP(pp_i_modulo_glibc_bugfix) |
224ec323 | 2667 | { |
224ec323 | 2668 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2669 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2670 | * See below for pp_i_modulo. */ |
20b7effb | 2671 | dSP; dATARGET; |
6f1401dc | 2672 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); |
224ec323 | 2673 | { |
6f1401dc | 2674 | dPOPTOPiirl_nomg; |
224ec323 JH |
2675 | if (!right) |
2676 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2677 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2678 | if (right == -1) | |
2679 | SETi( 0 ); | |
2680 | else | |
2681 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2682 | RETURN; |
2683 | } | |
224ec323 | 2684 | } |
befad5d1 | 2685 | #endif |
79072805 | 2686 | |
a0d0e21e | 2687 | PP(pp_i_add) |
79072805 | 2688 | { |
20b7effb | 2689 | dSP; dATARGET; |
6f1401dc | 2690 | tryAMAGICbin_MG(add_amg, AMGf_assign); |
a0d0e21e | 2691 | { |
6f1401dc | 2692 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2693 | SETi( left + right ); |
2694 | RETURN; | |
79072805 | 2695 | } |
79072805 LW |
2696 | } |
2697 | ||
a0d0e21e | 2698 | PP(pp_i_subtract) |
79072805 | 2699 | { |
20b7effb | 2700 | dSP; dATARGET; |
6f1401dc | 2701 | tryAMAGICbin_MG(subtr_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_lt) |
79072805 | 2710 | { |
20b7effb | 2711 | dSP; |
6f1401dc | 2712 | tryAMAGICbin_MG(lt_amg, AMGf_set); |
a0d0e21e | 2713 | { |
96b6b87f | 2714 | dPOPTOPiirl_nomg; |
54310121 | 2715 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2716 | RETURN; |
2717 | } | |
79072805 LW |
2718 | } |
2719 | ||
a0d0e21e | 2720 | PP(pp_i_gt) |
79072805 | 2721 | { |
20b7effb | 2722 | dSP; |
6f1401dc | 2723 | tryAMAGICbin_MG(gt_amg, AMGf_set); |
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_le) |
79072805 | 2732 | { |
20b7effb | 2733 | dSP; |
6f1401dc | 2734 | tryAMAGICbin_MG(le_amg, AMGf_set); |
a0d0e21e | 2735 | { |
96b6b87f | 2736 | dPOPTOPiirl_nomg; |
54310121 | 2737 | SETs(boolSV(left <= right)); |
a0d0e21e | 2738 | RETURN; |
85e6fe83 | 2739 | } |
79072805 LW |
2740 | } |
2741 | ||
a0d0e21e | 2742 | PP(pp_i_ge) |
79072805 | 2743 | { |
20b7effb | 2744 | dSP; |
6f1401dc | 2745 | tryAMAGICbin_MG(ge_amg, AMGf_set); |
a0d0e21e | 2746 | { |
96b6b87f | 2747 | dPOPTOPiirl_nomg; |
54310121 | 2748 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2749 | RETURN; |
2750 | } | |
79072805 LW |
2751 | } |
2752 | ||
a0d0e21e | 2753 | PP(pp_i_eq) |
79072805 | 2754 | { |
20b7effb | 2755 | dSP; |
6f1401dc | 2756 | tryAMAGICbin_MG(eq_amg, AMGf_set); |
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_ne) |
79072805 | 2765 | { |
20b7effb | 2766 | dSP; |
6f1401dc | 2767 | tryAMAGICbin_MG(ne_amg, AMGf_set); |
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_ncmp) |
79072805 | 2776 | { |
20b7effb | 2777 | dSP; dTARGET; |
6f1401dc | 2778 | tryAMAGICbin_MG(ncmp_amg, 0); |
a0d0e21e | 2779 | { |
96b6b87f | 2780 | dPOPTOPiirl_nomg; |
a0d0e21e | 2781 | I32 value; |
79072805 | 2782 | |
a0d0e21e | 2783 | if (left > right) |
79072805 | 2784 | value = 1; |
a0d0e21e | 2785 | else if (left < right) |
79072805 | 2786 | value = -1; |
a0d0e21e | 2787 | else |
79072805 | 2788 | value = 0; |
a0d0e21e LW |
2789 | SETi(value); |
2790 | RETURN; | |
79072805 | 2791 | } |
85e6fe83 LW |
2792 | } |
2793 | ||
2794 | PP(pp_i_negate) | |
2795 | { | |
20b7effb | 2796 | dSP; dTARGET; |
6f1401dc | 2797 | tryAMAGICun_MG(neg_amg, 0); |
1c2b3fd6 | 2798 | if (S_negate_string(aTHX)) return NORMAL; |
6f1401dc DM |
2799 | { |
2800 | SV * const sv = TOPs; | |
2801 | IV const i = SvIV_nomg(sv); | |
2802 | SETi(-i); | |
ae642386 | 2803 | return NORMAL; |
6f1401dc | 2804 | } |
85e6fe83 LW |
2805 | } |
2806 | ||
79072805 LW |
2807 | /* High falutin' math. */ |
2808 | ||
2809 | PP(pp_atan2) | |
2810 | { | |
20b7effb | 2811 | dSP; dTARGET; |
6f1401dc | 2812 | tryAMAGICbin_MG(atan2_amg, 0); |
a0d0e21e | 2813 | { |
096c060c | 2814 | dPOPTOPnnrl_nomg; |
a1021d57 | 2815 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2816 | RETURN; |
2817 | } | |
79072805 LW |
2818 | } |
2819 | ||
b1c05ba5 DM |
2820 | |
2821 | /* also used for: pp_cos() pp_exp() pp_log() pp_sqrt() */ | |
2822 | ||
79072805 LW |
2823 | PP(pp_sin) |
2824 | { | |
20b7effb | 2825 | dSP; dTARGET; |
af71714e | 2826 | int amg_type = fallback_amg; |
71302fe3 | 2827 | const char *neg_report = NULL; |
71302fe3 NC |
2828 | const int op_type = PL_op->op_type; |
2829 | ||
2830 | switch (op_type) { | |
af71714e JH |
2831 | case OP_SIN: amg_type = sin_amg; break; |
2832 | case OP_COS: amg_type = cos_amg; break; | |
2833 | case OP_EXP: amg_type = exp_amg; break; | |
2834 | case OP_LOG: amg_type = log_amg; neg_report = "log"; break; | |
2835 | case OP_SQRT: amg_type = sqrt_amg; neg_report = "sqrt"; break; | |
a0d0e21e | 2836 | } |
79072805 | 2837 | |
af71714e | 2838 | assert(amg_type != fallback_amg); |
6f1401dc DM |
2839 | |
2840 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2841 | { |
8c78ed36 | 2842 | SV * const arg = TOPs; |
6f1401dc | 2843 | const NV value = SvNV_nomg(arg); |
a5dc2484 | 2844 | #ifdef NV_NAN |
f256868e | 2845 | NV result = NV_NAN; |
a5dc2484 JH |
2846 | #else |
2847 | NV result = 0.0; | |
2848 | #endif | |
af71714e | 2849 | if (neg_report) { /* log or sqrt */ |
a3463d96 DD |
2850 | if ( |
2851 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) | |
2852 | ! Perl_isnan(value) && | |
2853 | #endif | |
2854 | (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0))) { | |
71302fe3 | 2855 | SET_NUMERIC_STANDARD(); |
dcbac5bb | 2856 | /* diag_listed_as: Can't take log of %g */ |
147e3846 | 2857 | DIE(aTHX_ "Can't take %s of %" NVgf, neg_report, value); |
71302fe3 NC |
2858 | } |
2859 | } | |
af71714e | 2860 | switch (op_type) { |
f256868e | 2861 | default: |
af71714e JH |
2862 | case OP_SIN: result = Perl_sin(value); break; |
2863 | case OP_COS: result = Perl_cos(value); break; | |
2864 | case OP_EXP: result = Perl_exp(value); break; | |
2865 | case OP_LOG: result = Perl_log(value); break; | |
2866 | case OP_SQRT: result = Perl_sqrt(value); break; | |
2867 | } | |
8c78ed36 FC |
2868 | SETn(result); |
2869 | return NORMAL; | |
a0d0e21e | 2870 | } |
79072805 LW |
2871 | } |
2872 | ||
56cb0a1c AD |
2873 | /* Support Configure command-line overrides for rand() functions. |
2874 | After 5.005, perhaps we should replace this by Configure support | |
2875 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2876 | compatibility by calling rand() but allow the user to override it. | |
2877 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2878 | */ | |
85ab1d1d JH |
2879 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2880 | in addition to rand(). So the overrides should not be needed any more. | |
2881 | --Jarkko Hietaniemi 27 September 1998 | |
2882 | */ | |
2883 | ||
79072805 LW |
2884 | PP(pp_rand) |
2885 | { | |
80252599 | 2886 | if (!PL_srand_called) { |
85ab1d1d | 2887 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2888 | PL_srand_called = TRUE; |
93dc8474 | 2889 | } |
fdf4dddd DD |
2890 | { |
2891 | dSP; | |
2892 | NV value; | |
fdf4dddd DD |
2893 | |
2894 | if (MAXARG < 1) | |
7e9044f9 FC |
2895 | { |
2896 | EXTEND(SP, 1); | |
fdf4dddd | 2897 | value = 1.0; |
7e9044f9 | 2898 | } |
fdf4dddd DD |
2899 | else { |
2900 | SV * const sv = POPs; | |
2901 | if(!sv) | |
2902 | value = 1.0; | |
2903 | else | |
2904 | value = SvNV(sv); | |
2905 | } | |
2906 | /* 1 of 2 things can be carried through SvNV, SP or TARG, SP was carried */ | |
a3463d96 DD |
2907 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
2908 | if (! Perl_isnan(value) && value == 0.0) | |
2909 | #else | |
659c4b96 | 2910 | if (value == 0.0) |
a3463d96 | 2911 | #endif |
fdf4dddd DD |
2912 | value = 1.0; |
2913 | { | |
2914 | dTARGET; | |
2915 | PUSHs(TARG); | |
2916 | PUTBACK; | |
2917 | value *= Drand01(); | |
2918 | sv_setnv_mg(TARG, value); | |
2919 | } | |
2920 | } | |
2921 | return NORMAL; | |
79072805 LW |
2922 | } |
2923 | ||
2924 | PP(pp_srand) | |
2925 | { | |
20b7effb | 2926 | dSP; dTARGET; |
f914a682 JL |
2927 | UV anum; |
2928 | ||
0a5f3363 | 2929 | if (MAXARG >= 1 && (TOPs || POPs)) { |
f914a682 JL |
2930 | SV *top; |
2931 | char *pv; | |
2932 | STRLEN len; | |
2933 | int flags; | |
2934 | ||
2935 | top = POPs; | |
2936 | pv = SvPV(top, len); | |
2937 | flags = grok_number(pv, len, &anum); | |
2938 | ||
2939 | if (!(flags & IS_NUMBER_IN_UV)) { | |
2940 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
2941 | "Integer overflow in srand"); | |
2942 | anum = UV_MAX; | |
2943 | } | |
2944 | } | |
2945 | else { | |
2946 | anum = seed(); | |
2947 | } | |
2948 | ||
85ab1d1d | 2949 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2950 | PL_srand_called = TRUE; |
da1010ec NC |
2951 | if (anum) |
2952 | XPUSHu(anum); | |
2953 | else { | |
2954 | /* Historically srand always returned true. We can avoid breaking | |
2955 | that like this: */ | |
2956 | sv_setpvs(TARG, "0 but true"); | |
2957 | XPUSHTARG; | |
2958 | } | |
83832992 | 2959 | RETURN; |
79072805 LW |
2960 | } |
2961 | ||
79072805 LW |
2962 | PP(pp_int) |
2963 | { | |
20b7effb | 2964 | dSP; dTARGET; |
6f1401dc | 2965 | tryAMAGICun_MG(int_amg, AMGf_numeric); |
774d564b | 2966 | { |
6f1401dc DM |
2967 | SV * const sv = TOPs; |
2968 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2969 | /* XXX it's arguable that compiler casting to IV might be subtly |
2970 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2971 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2972 | relying on floating point to be accurate is a bug. */ | |
2973 | ||
c781a409 | 2974 | if (!SvOK(sv)) { |
922c4365 | 2975 | SETu(0); |
c781a409 RD |
2976 | } |
2977 | else if (SvIOK(sv)) { | |
2978 | if (SvIsUV(sv)) | |
6f1401dc | 2979 | SETu(SvUV_nomg(sv)); |
c781a409 | 2980 | else |
28e5dec8 | 2981 | SETi(iv); |
c781a409 | 2982 | } |
c781a409 | 2983 | else { |
6f1401dc | 2984 | const NV value = SvNV_nomg(sv); |
b9d05018 FC |
2985 | if (UNLIKELY(Perl_isinfnan(value))) |
2986 | SETn(value); | |
5bf8b78e | 2987 | else if (value >= 0.0) { |
28e5dec8 JH |
2988 | if (value < (NV)UV_MAX + 0.5) { |
2989 | SETu(U_V(value)); | |
2990 | } else { | |
059a1014 | 2991 | SETn(Perl_floor(value)); |
28e5dec8 | 2992 | } |
1048ea30 | 2993 | } |
28e5dec8 JH |
2994 | else { |
2995 | if (value > (NV)IV_MIN - 0.5) { | |
2996 | SETi(I_V(value)); | |
2997 | } else { | |
1bbae031 | 2998 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
2999 | } |
3000 | } | |
774d564b | 3001 | } |
79072805 | 3002 | } |
699e9491 | 3003 | return NORMAL; |
79072805 LW |
3004 | } |
3005 | ||
463ee0b2 LW |
3006 | PP(pp_abs) |
3007 | { | |
20b7effb | 3008 | dSP; dTARGET; |
6f1401dc | 3009 | tryAMAGICun_MG(abs_amg, AMGf_numeric); |
a0d0e21e | 3010 | { |
6f1401dc | 3011 | SV * const sv = TOPs; |
28e5dec8 | 3012 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 3013 | const IV iv = SvIV_nomg(sv); |
a227d84d | 3014 | |
800401ee | 3015 | if (!SvOK(sv)) { |
922c4365 | 3016 | SETu(0); |
800401ee JH |
3017 | } |
3018 | else if (SvIOK(sv)) { | |
28e5dec8 | 3019 | /* IVX is precise */ |
800401ee | 3020 | if (SvIsUV(sv)) { |
6f1401dc | 3021 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
3022 | } else { |
3023 | if (iv >= 0) { | |
3024 | SETi(iv); | |
3025 | } else { | |
3026 | if (iv != IV_MIN) { | |
3027 | SETi(-iv); | |
3028 | } else { | |
3029 | /* 2s complement assumption. Also, not really needed as | |
3030 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
b396d0d8 | 3031 | SETu((UV)IV_MIN); |
28e5dec8 | 3032 | } |
a227d84d | 3033 | } |
28e5dec8 JH |
3034 | } |
3035 | } else{ | |
6f1401dc | 3036 | const NV value = SvNV_nomg(sv); |
774d564b | 3037 | if (value < 0.0) |
1b6737cc | 3038 | SETn(-value); |
a4474c9e DD |
3039 | else |
3040 | SETn(value); | |
774d564b | 3041 | } |
a0d0e21e | 3042 | } |
067b7929 | 3043 | return NORMAL; |
463ee0b2 LW |
3044 | } |
3045 | ||
b1c05ba5 DM |
3046 | |
3047 | /* also used for: pp_hex() */ | |
3048 | ||
79072805 LW |
3049 | PP(pp_oct) |
3050 | { | |
20b7effb | 3051 | dSP; dTARGET; |
5c144d81 | 3052 | const char *tmps; |
53305cf1 | 3053 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 3054 | STRLEN len; |
53305cf1 NC |
3055 | NV result_nv; |
3056 | UV result_uv; | |
4e51bcca | 3057 | SV* const sv = TOPs; |
79072805 | 3058 | |
349d4f2f | 3059 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
3060 | if (DO_UTF8(sv)) { |
3061 | /* If Unicode, try to downgrade | |
3062 | * If not possible, croak. */ | |
1b6737cc | 3063 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
3064 | |
3065 | SvUTF8_on(tsv); | |
3066 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 3067 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 3068 | } |
daa2adfd NC |
3069 | if (PL_op->op_type == OP_HEX) |
3070 | goto hex; | |
3071 | ||
6f894ead | 3072 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 3073 | tmps++, len--; |
9e24b6e2 | 3074 | if (*tmps == '0') |
53305cf1 | 3075 | tmps++, len--; |
305b8651 | 3076 | if (isALPHA_FOLD_EQ(*tmps, 'x')) { |
daa2adfd | 3077 | hex: |
53305cf1 | 3078 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 3079 | } |
305b8651 | 3080 | else if (isALPHA_FOLD_EQ(*tmps, 'b')) |
53305cf1 | 3081 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 3082 | else |
53305cf1 NC |
3083 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
3084 | ||
3085 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
4e51bcca | 3086 | SETn(result_nv); |
53305cf1 NC |
3087 | } |
3088 | else { | |
4e51bcca | 3089 | SETu(result_uv); |
53305cf1 | 3090 | } |
4e51bcca | 3091 | return NORMAL; |
79072805 LW |
3092 | } |
3093 | ||
3094 | /* String stuff. */ | |
3095 | ||
5febd2ff | 3096 | |
79072805 LW |
3097 | PP(pp_length) |
3098 | { | |
20b7effb | 3099 | dSP; dTARGET; |
0bd48802 | 3100 | SV * const sv = TOPs; |
a0ed51b3 | 3101 | |
7776003e | 3102 | U32 in_bytes = IN_BYTES; |
5febd2ff DM |
3103 | /* Simplest case shortcut: |
3104 | * set svflags to just the SVf_POK|SVs_GMG|SVf_UTF8 from the SV, | |
3105 | * with the SVf_UTF8 flag inverted if under 'use bytes' (HINT_BYTES | |
3106 | * set) | |
3107 | */ | |
7776003e | 3108 | U32 svflags = (SvFLAGS(sv) ^ (in_bytes << 26)) & (SVf_POK|SVs_GMG|SVf_UTF8); |
5febd2ff DM |
3109 | |
3110 | STATIC_ASSERT_STMT(SVf_UTF8 == (HINT_BYTES << 26)); | |
7776003e DD |
3111 | SETs(TARG); |
3112 | ||
5febd2ff | 3113 | if (LIKELY(svflags == SVf_POK)) |
7776003e | 3114 | goto simple_pv; |
5febd2ff DM |
3115 | |
3116 | if (svflags & SVs_GMG) | |
7776003e | 3117 | mg_get(sv); |
5febd2ff | 3118 | |
0f43fd57 | 3119 | if (SvOK(sv)) { |
5b750817 | 3120 | STRLEN len; |
f446eca7 DM |
3121 | if (!IN_BYTES) { /* reread to avoid using an C auto/register */ |
3122 | if ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == SVf_POK) | |
3123 | goto simple_pv; | |
7b394f12 DM |
3124 | if ( SvPOK(sv) && (PL_op->op_private & OPpTRUEBOOL)) { |
3125 | /* no need to convert from bytes to chars */ | |
3126 | len = SvCUR(sv); | |
3127 | goto return_bool; | |
3128 | } | |
5b750817 | 3129 | len = sv_len_utf8_nomg(sv); |
f446eca7 | 3130 | } |
5febd2ff | 3131 | else { |
7776003e | 3132 | /* unrolled SvPV_nomg_const(sv,len) */ |
5febd2ff DM |
3133 | if (SvPOK_nog(sv)) { |
3134 | simple_pv: | |
7776003e | 3135 | len = SvCUR(sv); |
7b394f12 DM |
3136 | if (PL_op->op_private & OPpTRUEBOOL) { |
3137 | return_bool: | |
3138 | SETs(len ? &PL_sv_yes : &PL_sv_zero); | |
3139 | return NORMAL; | |
3140 | } | |
5febd2ff DM |
3141 | } |
3142 | else { | |
7776003e DD |
3143 | (void)sv_2pv_flags(sv, &len, 0|SV_CONST_RETURN); |
3144 | } | |
0f43fd57 | 3145 | } |
5b750817 | 3146 | TARGi((IV)(len), 1); |
5febd2ff DM |
3147 | } |
3148 | else { | |
9407f9c1 | 3149 | if (!SvPADTMP(TARG)) { |
5febd2ff | 3150 | /* OPpTARGET_MY: targ is var in '$lex = length()' */ |
e03e82a0 | 3151 | sv_set_undef(TARG); |
5b750817 | 3152 | SvSETMAGIC(TARG); |
5febd2ff DM |
3153 | } |
3154 | else | |
3155 | /* TARG is on stack at this point and is overwriten by SETs. | |
3156 | * This branch is the odd one out, so put TARG by default on | |
3157 | * stack earlier to let local SP go out of liveness sooner */ | |
7776003e | 3158 | SETs(&PL_sv_undef); |
92331800 | 3159 | } |
7776003e | 3160 | return NORMAL; /* no putback, SP didn't move in this opcode */ |
79072805 LW |
3161 | } |
3162 | ||
5febd2ff | 3163 | |
83f78d1a FC |
3164 | /* Returns false if substring is completely outside original string. |
3165 | No length is indicated by len_iv = 0 and len_is_uv = 0. len_is_uv must | |
3166 | always be true for an explicit 0. | |
3167 | */ | |
3168 | bool | |
ddeaf645 DD |
3169 | Perl_translate_substr_offsets( STRLEN curlen, IV pos1_iv, |
3170 | bool pos1_is_uv, IV len_iv, | |
3171 | bool len_is_uv, STRLEN *posp, | |
3172 | STRLEN *lenp) | |
83f78d1a FC |
3173 | { |
3174 | IV pos2_iv; | |
3175 | int pos2_is_uv; | |
3176 | ||
3177 | PERL_ARGS_ASSERT_TRANSLATE_SUBSTR_OFFSETS; | |
3178 | ||
3179 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { | |
3180 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
3181 | pos1_iv += curlen; | |
3182 | } | |
3183 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) | |
3184 | return FALSE; | |
3185 | ||
3186 | if (len_iv || len_is_uv) { | |
3187 | if (!len_is_uv && len_iv < 0) { | |
3188 | pos2_iv = curlen + len_iv; | |
3189 | if (curlen) | |
3190 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
3191 | else | |
3192 | pos2_is_uv = 0; | |
3193 | } else { /* len_iv >= 0 */ | |
3194 | if (!pos1_is_uv && pos1_iv < 0) { | |
3195 | pos2_iv = pos1_iv + len_iv; | |
3196 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
3197 | } else { | |
3198 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
3199 | pos2_iv = curlen; | |
3200 | else | |
3201 | pos2_iv = pos1_iv+len_iv; | |
3202 | pos2_is_uv = 1; | |
3203 | } | |
3204 | } | |
3205 | } | |
3206 | else { | |
3207 | pos2_iv = curlen; | |
3208 | pos2_is_uv = 1; | |
3209 | } | |
3210 | ||
3211 | if (!pos2_is_uv && pos2_iv < 0) { | |
3212 | if (!pos1_is_uv && pos1_iv < 0) | |
3213 | return FALSE; | |
3214 | pos2_iv = 0; | |
3215 | } | |
3216 | else if (!pos1_is_uv && pos1_iv < 0) | |
3217 | pos1_iv = 0; | |
3218 | ||
3219 | if ((UV)pos2_iv < (UV)pos1_iv) | |
3220 | pos2_iv = pos1_iv; | |
3221 | if ((UV)pos2_iv > curlen) | |
3222 | pos2_iv = curlen; | |
3223 | ||
3224 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3225 | *posp = (STRLEN)( (UV)pos1_iv ); | |
3226 | *lenp = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
3227 | ||
3228 | return TRUE; | |
3229 | } | |
3230 | ||
79072805 LW |
3231 | PP(pp_substr) |
3232 | { | |
20b7effb | 3233 | dSP; dTARGET; |
79072805 | 3234 | SV *sv; |
463ee0b2 | 3235 | STRLEN curlen; |
9402d6ed | 3236 | STRLEN utf8_curlen; |
777f7c56 EB |
3237 | SV * pos_sv; |
3238 | IV pos1_iv; | |
3239 | int pos1_is_uv; | |
777f7c56 EB |
3240 | SV * len_sv; |
3241 | IV len_iv = 0; | |
83f78d1a | 3242 | int len_is_uv = 0; |
24fcb59f | 3243 | I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 3244 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 3245 | const char *tmps; |
9402d6ed | 3246 | SV *repl_sv = NULL; |
cbbf8932 | 3247 | const char *repl = NULL; |
7b8d334a | 3248 | STRLEN repl_len; |
7bc95ae1 | 3249 | int num_args = PL_op->op_private & 7; |
13e30c65 | 3250 | bool repl_need_utf8_upgrade = FALSE; |
79072805 | 3251 | |
78f9721b SM |
3252 | if (num_args > 2) { |
3253 | if (num_args > 3) { | |
24fcb59f | 3254 | if(!(repl_sv = POPs)) num_args--; |
7bc95ae1 FC |
3255 | } |
3256 | if ((len_sv = POPs)) { | |
3257 | len_iv = SvIV(len_sv); | |
83f78d1a | 3258 | len_is_uv = len_iv ? SvIOK_UV(len_sv) : 1; |
7b8d334a | 3259 | } |
7bc95ae1 | 3260 | else num_args--; |
5d82c453 | 3261 | } |
777f7c56 EB |
3262 | pos_sv = POPs; |
3263 | pos1_iv = SvIV(pos_sv); | |
3264 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3265 | sv = POPs; |
24fcb59f FC |
3266 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) { |
3267 | assert(!repl_sv); | |
3268 | repl_sv = POPs; | |
3269 | } | |
6582db62 | 3270 | if (lvalue && !repl_sv) { |
83f78d1a FC |
3271 | SV * ret; |
3272 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3273 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3274 | LvTYPE(ret) = 'x'; | |
3275 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3276 | LvTARGOFF(ret) = | |
3277 | pos1_is_uv || pos1_iv >= 0 | |
3278 | ? (STRLEN)(UV)pos1_iv | |
b063b0a8 | 3279 | : (LvFLAGS(ret) |= LVf_NEG_OFF, (STRLEN)(UV)-pos1_iv); |
83f78d1a FC |
3280 | LvTARGLEN(ret) = |
3281 | len_is_uv || len_iv > 0 | |
3282 | ? (STRLEN)(UV)len_iv | |
b063b0a8 | 3283 | : (LvFLAGS(ret) |= LVf_NEG_LEN, (STRLEN)(UV)-len_iv); |
83f78d1a | 3284 | |
83f78d1a FC |
3285 | PUSHs(ret); /* avoid SvSETMAGIC here */ |
3286 | RETURN; | |
a74fb2cd | 3287 | } |
6582db62 FC |
3288 | if (repl_sv) { |
3289 | repl = SvPV_const(repl_sv, repl_len); | |
3290 | SvGETMAGIC(sv); | |
3291 | if (SvROK(sv)) | |
3292 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3293 | "Attempt to use reference as lvalue in substr" | |
3294 | ); | |
3295 | tmps = SvPV_force_nomg(sv, curlen); | |
3296 | if (DO_UTF8(repl_sv) && repl_len) { | |
3297 | if (!DO_UTF8(sv)) { | |
41b1e858 AC |
3298 | /* Upgrade the dest, and recalculate tmps in case the buffer |
3299 | * got reallocated; curlen may also have been changed */ | |
01680ee9 | 3300 | sv_utf8_upgrade_nomg(sv); |
41b1e858 | 3301 | tmps = SvPV_nomg(sv, curlen); |
6582db62 FC |
3302 | } |
3303 | } | |
3304 | else if (DO_UTF8(sv)) | |
3305 | repl_need_utf8_upgrade = TRUE; | |
3306 | } | |
3307 | else tmps = SvPV_const(sv, curlen); | |
7e2040f0 | 3308 | if (DO_UTF8(sv)) { |
0d788f38 | 3309 | utf8_curlen = sv_or_pv_len_utf8(sv, tmps, curlen); |
9402d6ed JH |
3310 | if (utf8_curlen == curlen) |
3311 | utf8_curlen = 0; | |
a0ed51b3 | 3312 | else |
9402d6ed | 3313 | curlen = utf8_curlen; |
a0ed51b3 | 3314 | } |
d1c2b58a | 3315 | else |
9402d6ed | 3316 | utf8_curlen = 0; |
a0ed51b3 | 3317 | |
83f78d1a FC |
3318 | { |
3319 | STRLEN pos, len, byte_len, byte_pos; | |
777f7c56 | 3320 | |
83f78d1a FC |
3321 | if (!translate_substr_offsets( |
3322 | curlen, pos1_iv, pos1_is_uv, len_iv, len_is_uv, &pos, &len | |
3323 | )) goto bound_fail; | |
777f7c56 | 3324 | |
83f78d1a FC |
3325 | byte_len = len; |
3326 | byte_pos = utf8_curlen | |
0d788f38 | 3327 | ? sv_or_pv_pos_u2b(sv, tmps, pos, &byte_len) : pos; |
d931b1be | 3328 | |
2154eca7 | 3329 | tmps += byte_pos; |
bbddc9e0 CS |
3330 | |
3331 | if (rvalue) { | |
3332 | SvTAINTED_off(TARG); /* decontaminate */ | |
3333 | SvUTF8_off(TARG); /* decontaminate */ | |
3334 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3335 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3336 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3337 | #endif |
bbddc9e0 CS |
3338 | if (utf8_curlen) |
3339 | SvUTF8_on(TARG); | |
3340 | } | |
2154eca7 | 3341 | |
f7928d6c | 3342 | if (repl) { |
13e30c65 JH |
3343 | SV* repl_sv_copy = NULL; |
3344 | ||
3345 | if (repl_need_utf8_upgrade) { | |
3346 | repl_sv_copy = newSVsv(repl_sv); | |
3347 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3348 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 | 3349 | } |
502d9230 | 3350 | if (!SvOK(sv)) |
500f3e18 | 3351 | SvPVCLEAR(sv); |
777f7c56 | 3352 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
ef8d46e8 | 3353 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3354 | } |
79072805 | 3355 | } |
6a9665b0 FC |
3356 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) |
3357 | SP++; | |
3358 | else if (rvalue) { | |
bbddc9e0 CS |
3359 | SvSETMAGIC(TARG); |
3360 | PUSHs(TARG); | |
3361 | } | |
79072805 | 3362 | RETURN; |
777f7c56 | 3363 | |
7b52d656 | 3364 | bound_fail: |
83f78d1a | 3365 | if (repl) |
777f7c56 EB |
3366 | Perl_croak(aTHX_ "substr outside of string"); |
3367 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3368 | RETPUSHUNDEF; | |
79072805 LW |
3369 | } |
3370 | ||
3371 | PP(pp_vec) | |
3372 | { | |
20b7effb | 3373 | dSP; |
eb578fdb | 3374 | const IV size = POPi; |
d69c4304 | 3375 | SV* offsetsv = POPs; |
eb578fdb | 3376 | SV * const src = POPs; |
1b6737cc | 3377 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2154eca7 | 3378 | SV * ret; |
1b92e694 DM |
3379 | UV retuv; |
3380 | STRLEN offset = 0; | |
3381 | char errflags = 0; | |
d69c4304 DM |
3382 | |
3383 | /* extract a STRLEN-ranged integer value from offsetsv into offset, | |
1b92e694 | 3384 | * or flag that its out of range */ |
d69c4304 DM |
3385 | { |
3386 | IV iv = SvIV(offsetsv); | |
3387 | ||
3388 | /* avoid a large UV being wrapped to a negative value */ | |
1b92e694 | 3389 | if (SvIOK_UV(offsetsv) && SvUVX(offsetsv) > (UV)IV_MAX) |
b063b0a8 | 3390 | errflags = LVf_OUT_OF_RANGE; |
1b92e694 | 3391 | else if (iv < 0) |
b063b0a8 | 3392 | errflags = (LVf_NEG_OFF|LVf_OUT_OF_RANGE); |
d69c4304 | 3393 | #if PTRSIZE < IVSIZE |
1b92e694 | 3394 | else if (iv > Size_t_MAX) |
b063b0a8 | 3395 | errflags = LVf_OUT_OF_RANGE; |
d69c4304 | 3396 | #endif |
1b92e694 DM |
3397 | else |
3398 | offset = (STRLEN)iv; | |
d69c4304 DM |
3399 | } |
3400 | ||
1b92e694 | 3401 | retuv = errflags ? 0 : do_vecget(src, offset, size); |
a0d0e21e | 3402 | |
81e118e0 | 3403 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3404 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3405 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3406 | LvTYPE(ret) = 'v'; | |
3407 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3408 | LvTARGOFF(ret) = offset; | |
3409 | LvTARGLEN(ret) = size; | |
1b92e694 | 3410 | LvFLAGS(ret) = errflags; |
2154eca7 EB |
3411 | } |
3412 | else { | |
3413 | dTARGET; | |
3414 | SvTAINTED_off(TARG); /* decontaminate */ | |
3415 | ret = TARG; | |
79072805 LW |
3416 | } |
3417 | ||
d69c4304 | 3418 | sv_setuv(ret, retuv); |
f9e95907 FC |
3419 | if (!lvalue) |
3420 | SvSETMAGIC(ret); | |
2154eca7 | 3421 | PUSHs(ret); |
79072805 LW |
3422 | RETURN; |
3423 | } | |
3424 | ||
b1c05ba5 DM |
3425 | |
3426 | /* also used for: pp_rindex() */ | |
3427 | ||
79072805 LW |
3428 | PP(pp_index) |
3429 | { | |
20b7effb | 3430 | dSP; dTARGET; |
79072805 LW |
3431 | SV *big; |
3432 | SV *little; | |
c445ea15 | 3433 | SV *temp = NULL; |
ad66a58c | 3434 | STRLEN biglen; |
2723d216 | 3435 | STRLEN llen = 0; |
b464e2b7 TC |
3436 | SSize_t offset = 0; |
3437 | SSize_t retval; | |
73ee8be2 NC |
3438 | const char *big_p; |
3439 | const char *little_p; | |
2f040f7f NC |
3440 | bool big_utf8; |
3441 | bool little_utf8; | |
2723d216 | 3442 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3443 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3444 | |
e1dccc0d Z |
3445 | if (threeargs) |
3446 | offset = POPi; | |
79072805 LW |
3447 | little = POPs; |
3448 | big = POPs; | |
73ee8be2 NC |
3449 | big_p = SvPV_const(big, biglen); |
3450 | little_p = SvPV_const(little, llen); | |
3451 | ||
e609e586 NC |
3452 | big_utf8 = DO_UTF8(big); |
3453 | little_utf8 = DO_UTF8(little); | |
3454 | if (big_utf8 ^ little_utf8) { | |
3455 | /* One needs to be upgraded. */ | |
8df0e7a2 | 3456 | if (little_utf8) { |
2f040f7f NC |
3457 | /* Well, maybe instead we might be able to downgrade the small |
3458 | string? */ | |
1eced8f8 | 3459 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3460 | &little_utf8); |
3461 | if (little_utf8) { | |
3462 | /* If the large string is ISO-8859-1, and it's not possible to | |
3463 | convert the small string to ISO-8859-1, then there is no | |
3464 | way that it could be found anywhere by index. */ | |
3465 | retval = -1; | |
7e8d786b | 3466 | goto push_result; |
2f040f7f | 3467 | } |
e609e586 | 3468 | |
2f040f7f NC |
3469 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3470 | to ensure it will get free()d */ | |
3471 | little = temp = newSV(0); | |
73ee8be2 NC |
3472 | sv_usepvn(temp, pv, llen); |
3473 | little_p = SvPVX(little); | |
e609e586 | 3474 | } else { |
20e67ba1 | 3475 | temp = newSVpvn(little_p, llen); |
2f040f7f | 3476 | |
8df0e7a2 | 3477 | sv_utf8_upgrade(temp); |
20e67ba1 FC |
3478 | little = temp; |
3479 | little_p = SvPV_const(little, llen); | |
e609e586 NC |
3480 | } |
3481 | } | |
73ee8be2 NC |
3482 | if (SvGAMAGIC(big)) { |
3483 | /* Life just becomes a lot easier if I use a temporary here. | |
3484 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3485 | will trigger magic and overloading again, as will fbm_instr() | |
3486 | */ | |
59cd0e26 NC |
3487 | big = newSVpvn_flags(big_p, biglen, |
3488 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3489 | big_p = SvPVX(big); |
3490 | } | |
e4e44778 | 3491 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3492 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3493 | warn on undef, and we've already triggered a warning with the | |
3494 | SvPV_const some lines above. We can't remove that, as we need to | |
3495 | call some SvPV to trigger overloading early and find out if the | |
3496 | string is UTF-8. | |
8bd97c0c | 3497 | This is all getting too messy. The API isn't quite clean enough, |
73ee8be2 NC |
3498 | because data access has side effects. |
3499 | */ | |
59cd0e26 NC |
3500 | little = newSVpvn_flags(little_p, llen, |
3501 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3502 | little_p = SvPVX(little); |
3503 | } | |
e609e586 | 3504 | |
d3e26383 | 3505 | if (!threeargs) |
2723d216 | 3506 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3507 | else { |
ad66a58c | 3508 | if (big_utf8 && offset > 0) |
b464e2b7 | 3509 | offset = sv_pos_u2b_flags(big, offset, 0, SV_CONST_RETURN); |
73ee8be2 NC |
3510 | if (!is_index) |
3511 | offset += llen; | |
a0ed51b3 | 3512 | } |
79072805 LW |
3513 | if (offset < 0) |
3514 | offset = 0; | |
b464e2b7 | 3515 | else if (offset > (SSize_t)biglen) |
ad66a58c | 3516 | offset = biglen; |
73ee8be2 NC |
3517 | if (!(little_p = is_index |
3518 | ? fbm_instr((unsigned char*)big_p + offset, | |
3519 | (unsigned char*)big_p + biglen, little, 0) | |
3520 | : rninstr(big_p, big_p + offset, | |
3521 | little_p, little_p + llen))) | |
a0ed51b3 | 3522 | retval = -1; |
ad66a58c | 3523 | else { |
73ee8be2 | 3524 | retval = little_p - big_p; |
15c41403 | 3525 | if (retval > 1 && big_utf8) |
b464e2b7 | 3526 | retval = sv_pos_b2u_flags(big, retval, SV_CONST_RETURN); |
ad66a58c | 3527 | } |
ef8d46e8 | 3528 | SvREFCNT_dec(temp); |
7e8d786b DM |
3529 | |
3530 | push_result: | |
3531 | /* OPpTRUEBOOL indicates an '== -1' has been optimised away */ | |
3532 | if (PL_op->op_private & OPpTRUEBOOL) { | |
3533 | PUSHs( ((retval != -1) ^ cBOOL(PL_op->op_private & OPpINDEX_BOOLNEG)) | |
3534 | ? &PL_sv_yes : &PL_sv_no); | |
3535 | if (PL_op->op_private & OPpTARGET_MY) | |
3536 | /* $lex = (index() == -1) */ | |
3537 | sv_setsv(TARG, TOPs); | |
3538 | } | |
3539 | else | |
3540 | PUSHi(retval); | |
79072805 LW |
3541 | RETURN; |
3542 | } | |
3543 | ||
3544 | PP(pp_sprintf) | |
3545 | { | |
20b7effb | 3546 | dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3547 | SvTAINTED_off(TARG); |
79072805 | 3548 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3549 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3550 | SP = ORIGMARK; |
3551 | PUSHTARG; | |
3552 | RETURN; | |
3553 | } | |
3554 | ||
79072805 LW |
3555 | PP(pp_ord) |
3556 | { | |
20b7effb | 3557 | dSP; dTARGET; |
1eced8f8 | 3558 | |
6ba92227 | 3559 | SV *argsv = TOPs; |
ba210ebe | 3560 | STRLEN len; |
349d4f2f | 3561 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3562 | |
6ba92227 | 3563 | SETu(DO_UTF8(argsv) |
aee9b917 | 3564 | ? (len ? utf8n_to_uvchr(s, len, 0, UTF8_ALLOW_ANYUV) : 0) |
f3943cf2 | 3565 | : (UV)(*s)); |
68795e93 | 3566 | |
6ba92227 | 3567 | return NORMAL; |
79072805 LW |
3568 | } |
3569 | ||
463ee0b2 LW |
3570 | PP(pp_chr) |
3571 | { | |
20b7effb | 3572 | dSP; dTARGET; |
463ee0b2 | 3573 | char *tmps; |
8a064bd6 | 3574 | UV value; |
d3261b99 | 3575 | SV *top = TOPs; |
8a064bd6 | 3576 | |
71739502 | 3577 | SvGETMAGIC(top); |
9911fc4e FC |
3578 | if (UNLIKELY(SvAMAGIC(top))) |
3579 | top = sv_2num(top); | |
99f450cc | 3580 | if (UNLIKELY(isinfnansv(top))) |
147e3846 | 3581 | Perl_croak(aTHX_ "Cannot chr %" NVgf, SvNV(top)); |
1cd88304 JH |
3582 | else { |
3583 | if (!IN_BYTES /* under bytes, chr(-1) eq chr(0xff), etc. */ | |
3584 | && ((SvIOKp(top) && !SvIsUV(top) && SvIV_nomg(top) < 0) | |
3585 | || | |
3586 | ((SvNOKp(top) || (SvOK(top) && !SvIsUV(top))) | |
2cc2a5a0 KW |
3587 | && SvNV_nomg(top) < 0.0))) |
3588 | { | |
b3fe8680 FC |
3589 | if (ckWARN(WARN_UTF8)) { |
3590 | if (SvGMAGICAL(top)) { | |
3591 | SV *top2 = sv_newmortal(); | |
3592 | sv_setsv_nomg(top2, top); | |
3593 | top = top2; | |
3594 | } | |
1cd88304 | 3595 | Perl_warner(aTHX_ packWARN(WARN_UTF8), |
147e3846 | 3596 | "Invalid negative number (%" SVf ") in chr", SVfARG(top)); |
1cd88304 JH |
3597 | } |
3598 | value = UNICODE_REPLACEMENT; | |
3599 | } else { | |
3600 | value = SvUV_nomg(top); | |
3601 | } | |
8a064bd6 | 3602 | } |
463ee0b2 | 3603 | |
862a34c6 | 3604 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3605 | |
0064a8a9 | 3606 | if (value > 255 && !IN_BYTES) { |
5f560d8a | 3607 | SvGROW(TARG, (STRLEN)UVCHR_SKIP(value)+1); |
62961d2e | 3608 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3609 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3610 | *tmps = '\0'; |
3611 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3612 | SvUTF8_on(TARG); |
d3261b99 FC |
3613 | SETTARG; |
3614 | return NORMAL; | |
a0ed51b3 LW |
3615 | } |
3616 | ||
748a9306 | 3617 | SvGROW(TARG,2); |
463ee0b2 LW |
3618 | SvCUR_set(TARG, 1); |
3619 | tmps = SvPVX(TARG); | |
eb160463 | 3620 | *tmps++ = (char)value; |
748a9306 | 3621 | *tmps = '\0'; |
a0d0e21e | 3622 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3623 | |
d3261b99 FC |
3624 | SETTARG; |
3625 | return NORMAL; | |
463ee0b2 LW |
3626 | } |
3627 | ||
79072805 LW |
3628 | PP(pp_crypt) |
3629 | { | |
79072805 | 3630 | #ifdef HAS_CRYPT |
20b7effb | 3631 | dSP; dTARGET; |
5f74f29c | 3632 | dPOPTOPssrl; |
85c16d83 | 3633 | STRLEN len; |
10516c54 | 3634 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3635 | |
85c16d83 | 3636 | if (DO_UTF8(left)) { |
2bc69dc4 | 3637 | /* If Unicode, try to downgrade. |
f2791508 JH |
3638 | * If not possible, croak. |
3639 | * Yes, we made this up. */ | |
659fbb76 | 3640 | SV* const tsv = newSVpvn_flags(tmps, len, SVf_UTF8|SVs_TEMP); |
2bc69dc4 | 3641 | |
2bc69dc4 | 3642 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3643 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3644 | } |
05404ffe JH |
3645 | # ifdef USE_ITHREADS |
3646 | # ifdef HAS_CRYPT_R | |
3647 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3648 | /* This should be threadsafe because in ithreads there is only | |
3649 | * one thread per interpreter. If this would not be true, | |
3650 | * we would need a mutex to protect this malloc. */ | |
3651 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3652 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3653 | #if defined(__GLIBC__) || defined(__EMX__) | |
3654 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3655 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
e9c9cf57 DM |
3656 | #if (defined(__GLIBC__) && __GLIBC__ == 2) && \ |
3657 | (defined(__GLIBC_MINOR__) && __GLIBC_MINOR__ >= 2 && __GLIBC_MINOR__ < 4) | |
3658 | /* work around glibc-2.2.5 bug, has been fixed at some | |
3659 | * time in glibc-2.3.X */ | |
05404ffe | 3660 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; |
e9c9cf57 | 3661 | #endif |
05404ffe | 3662 | } |
05404ffe | 3663 | #endif |
6ab58e4d | 3664 | } |
05404ffe JH |
3665 | # endif /* HAS_CRYPT_R */ |
3666 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3667 | # ifdef FCRYPT |
83003860 | 3668 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3669 | # else |
83003860 | 3670 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3671 | # endif |
fbc76eb3 | 3672 | SvUTF8_off(TARG); |
ec93b65f | 3673 | SETTARG; |
4808266b | 3674 | RETURN; |
79072805 | 3675 | #else |
b13b2135 | 3676 | DIE(aTHX_ |
79072805 LW |
3677 | "The crypt() function is unimplemented due to excessive paranoia."); |
3678 | #endif | |
79072805 LW |
3679 | } |
3680 | ||
00f254e2 KW |
3681 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3682 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3683 | ||
b1c05ba5 DM |
3684 | |
3685 | /* also used for: pp_lcfirst() */ | |
3686 | ||
79072805 LW |
3687 | PP(pp_ucfirst) |
3688 | { | |
00f254e2 KW |
3689 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3690 | * changes. This means that possibly we can change in-place, ie., just | |
3691 | * take the source and change that one character and store it back, but not | |
3692 | * if read-only etc, or if the length changes */ | |
3693 | ||
39644a26 | 3694 | dSP; |
d54190f6 | 3695 | SV *source = TOPs; |
00f254e2 | 3696 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3697 | STRLEN need; |
3698 | SV *dest; | |
00f254e2 KW |
3699 | bool inplace; /* ? Convert first char only, in-place */ |
3700 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3701 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3702 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3703 | const U8 *s; |
3704 | U8 *d; | |
3705 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3706 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3707 | * stored as UTF-8 at s. */ | |
3708 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3709 | * lowercased) character stored in tmpbuf. May be either | |
3710 | * UTF-8 or not, but in either case is the number of bytes */ | |
d54190f6 | 3711 | |
841a5e18 | 3712 | s = (const U8*)SvPV_const(source, slen); |
a0ed51b3 | 3713 | |
00f254e2 KW |
3714 | /* We may be able to get away with changing only the first character, in |
3715 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3716 | * not convert in-place. */ | |
1921e031 | 3717 | inplace = !SvREADONLY(source) && SvPADTMP(source); |
00f254e2 | 3718 | |
8b7358b9 KW |
3719 | #ifdef USE_LOCALE_CTYPE |
3720 | ||
3721 | if (IN_LC_RUNTIME(LC_CTYPE)) { | |
3722 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
3723 | } | |
3724 | ||
3725 | #endif | |
3726 | ||
00f254e2 KW |
3727 | /* First calculate what the changed first character should be. This affects |
3728 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3729 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3730 | ||
3731 | if (! slen) { /* If empty */ | |
3732 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3733 | ulen = 0; |
62e6b705 | 3734 | *tmpbuf = '\0'; |
00f254e2 KW |
3735 | } |
3736 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3737 | doing_utf8 = TRUE; |
17e95c9d | 3738 | ulen = UTF8SKIP(s); |
094a2f8c | 3739 | if (op_type == OP_UCFIRST) { |
130c5df3 | 3740 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 3741 | _toTITLE_utf8_flags(s, s +slen, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3742 | #else |
a1a5ec35 | 3743 | _toTITLE_utf8_flags(s, s +slen, tmpbuf, &tculen, 0); |
130c5df3 | 3744 | #endif |
094a2f8c KW |
3745 | } |
3746 | else { | |
130c5df3 | 3747 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 3748 | _toLOWER_utf8_flags(s, s + slen, tmpbuf, &tculen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 3749 | #else |
a1a5ec35 | 3750 | _toLOWER_utf8_flags(s, s + slen, tmpbuf, &tculen, 0); |
130c5df3 | 3751 | #endif |
094a2f8c | 3752 | } |
00f254e2 | 3753 | |
17e95c9d KW |
3754 | /* we can't do in-place if the length changes. */ |
3755 | if (ulen != tculen) inplace = FALSE; | |
3756 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3757 | } |
00f254e2 KW |
3758 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3759 | * latin1 is treated as caseless. Note that a locale takes | |
3760 | * precedence */ | |
167d19f2 | 3761 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3762 | tculen = 1; /* Most characters will require one byte, but this will |
3763 | * need to be overridden for the tricky ones */ | |
3764 | need = slen + 1; | |
3765 | ||
3766 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3767 | |
00f254e2 | 3768 | /* lower case the first letter: no trickiness for any character */ |
130c5df3 | 3769 | #ifdef USE_LOCALE_CTYPE |
780fcc9f | 3770 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
780fcc9f KW |
3771 | *tmpbuf = toLOWER_LC(*s); |
3772 | } | |
3773 | else | |
130c5df3 | 3774 | #endif |
780fcc9f KW |
3775 | { |
3776 | *tmpbuf = (IN_UNI_8_BIT) | |
3777 | ? toLOWER_LATIN1(*s) | |
3778 | : toLOWER(*s); | |
3779 | } | |
00f254e2 | 3780 | } |
130c5df3 | 3781 | #ifdef USE_LOCALE_CTYPE |
780fcc9f | 3782 | /* is ucfirst() */ |
d6ded950 | 3783 | else if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
3784 | if (IN_UTF8_CTYPE_LOCALE) { |
3785 | goto do_uni_rules; | |
3786 | } | |
3787 | ||
3788 | *tmpbuf = (U8) toUPPER_LC(*s); /* This would be a bug if any | |
3789 | locales have upper and title case | |
3790 | different */ | |
00f254e2 | 3791 | } |
130c5df3 | 3792 | #endif |
00f254e2 KW |
3793 | else if (! IN_UNI_8_BIT) { |
3794 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3795 | * on EBCDIC machines whatever the | |
3796 | * native function does */ | |
3797 | } | |
31f05a37 KW |
3798 | else { |
3799 | /* Here, is ucfirst non-UTF-8, not in locale (unless that locale is | |
3800 | * UTF-8, which we treat as not in locale), and cased latin1 */ | |
3801 | UV title_ord; | |
91191cf7 | 3802 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 3803 | do_uni_rules: |
91191cf7 | 3804 | #endif |
31f05a37 KW |
3805 | |
3806 | title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); | |
167d19f2 KW |
3807 | if (tculen > 1) { |
3808 | assert(tculen == 2); | |
3809 | ||
3810 | /* If the result is an upper Latin1-range character, it can | |
3811 | * still be represented in one byte, which is its ordinal */ | |
3812 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3813 | *tmpbuf = (U8) title_ord; | |
3814 | tculen = 1; | |
00f254e2 KW |
3815 | } |
3816 | else { | |
167d19f2 KW |
3817 | /* Otherwise it became more than one ASCII character (in |
3818 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3819 | * beyond Latin1, so the number of bytes changed, so can't | |
3820 | * replace just the first character in place. */ | |
3821 | inplace = FALSE; | |
3822 | ||
d14578b8 KW |
3823 | /* If the result won't fit in a byte, the entire result |
3824 | * will have to be in UTF-8. Assume worst case sizing in | |
3825 | * conversion. (all latin1 characters occupy at most two | |
3826 | * bytes in utf8) */ | |
167d19f2 KW |
3827 | if (title_ord > 255) { |
3828 | doing_utf8 = TRUE; | |
3829 | convert_source_to_utf8 = TRUE; | |
3830 | need = slen * 2 + 1; | |
3831 | ||
3832 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
3833 | * (both) characters whose title case is above 255 is | |
3834 | * 2. */ | |
3835 | ulen = 2; | |
3836 | } | |
3837 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3838 | need = slen + 1 + 1; | |
3839 | } | |
00f254e2 | 3840 | } |
167d19f2 | 3841 | } |
00f254e2 KW |
3842 | } /* End of use Unicode (Latin1) semantics */ |
3843 | } /* End of changing the case of the first character */ | |
3844 | ||
3845 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3846 | * generate the result */ | |
3847 | if (inplace) { | |
3848 | ||
3849 | /* We can convert in place. This means we change just the first | |
3850 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3851 | dest = source; |
3852 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3853 | } else { | |
3854 | dTARGET; | |
3855 | ||
3856 | dest = TARG; | |
3857 | ||
00f254e2 KW |
3858 | /* Here, we can't convert in place; we earlier calculated how much |
3859 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3860 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3861 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3862 | (void)SvPOK_only(dest); |
3863 | ||
3864 | SETs(dest); | |
d54190f6 | 3865 | } |
44bc797b | 3866 | |
d54190f6 | 3867 | if (doing_utf8) { |
00f254e2 KW |
3868 | if (! inplace) { |
3869 | if (! convert_source_to_utf8) { | |
3870 | ||
3871 | /* Here both source and dest are in UTF-8, but have to create | |
3872 | * the entire output. We initialize the result to be the | |
3873 | * title/lower cased first character, and then append the rest | |
3874 | * of the string. */ | |
3875 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3876 | if (slen > ulen) { | |
3877 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3878 | } | |
3879 | } | |
3880 | else { | |
3881 | const U8 *const send = s + slen; | |
3882 | ||
3883 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3884 | * except we earlier UTF-8'd the first character of the source | |
3885 | * into tmpbuf. First put that into dest, and then append the | |
3886 | * rest of the source, converting it to UTF-8 as we go. */ | |
3887 | ||
3888 | /* Assert tculen is 2 here because the only two characters that | |
3889 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3890 | *d++ = *tmpbuf; | |
3891 | *d++ = *(tmpbuf + 1); | |
3892 | s++; /* We have just processed the 1st char */ | |
3893 | ||
3894 | for (; s < send; s++) { | |
3895 | d = uvchr_to_utf8(d, *s); | |
3896 | } | |
3897 | *d = '\0'; | |
3898 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3899 | } | |
d54190f6 | 3900 | SvUTF8_on(dest); |
a0ed51b3 | 3901 | } |
00f254e2 | 3902 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3903 | Copy(tmpbuf, d, tculen, U8); |
3904 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3905 | } |
094a2f8c | 3906 | |
a0ed51b3 | 3907 | } |
00f254e2 KW |
3908 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3909 | if (slen) { | |
00f254e2 KW |
3910 | if (inplace) { /* in-place, only need to change the 1st char */ |
3911 | *d = *tmpbuf; | |
3912 | } | |
3913 | else { /* Not in-place */ | |
3914 | ||
3915 | /* Copy the case-changed character(s) from tmpbuf */ | |
3916 | Copy(tmpbuf, d, tculen, U8); | |
3917 | d += tculen - 1; /* Code below expects d to point to final | |
3918 | * character stored */ | |
3919 | } | |
3920 | } | |
3921 | else { /* empty source */ | |
3922 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3923 | *d = *s; |
3924 | } | |
3925 | ||
00f254e2 KW |
3926 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3927 | * the destination to retain that flag */ | |
93e088e8 | 3928 | if (SvUTF8(source) && ! IN_BYTES) |
d54190f6 NC |
3929 | SvUTF8_on(dest); |
3930 | ||
00f254e2 | 3931 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3932 | /* This will copy the trailing NUL */ |
3933 | Copy(s + 1, d + 1, slen, U8); | |
3934 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3935 | } |
bbce6d69 | 3936 | } |
130c5df3 | 3937 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 3938 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
3939 | TAINT; |
3940 | SvTAINTED_on(dest); | |
3941 | } | |
130c5df3 | 3942 | #endif |
539689e7 FC |
3943 | if (dest != source && SvTAINTED(source)) |
3944 | SvTAINT(dest); | |
d54190f6 | 3945 | SvSETMAGIC(dest); |
3cb4e04f | 3946 | return NORMAL; |
79072805 LW |
3947 | } |
3948 | ||
67306194 NC |
3949 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
3950 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 3951 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
3952 | PP(pp_uc) |
3953 | { | |
39644a26 | 3954 | dSP; |
67306194 | 3955 | SV *source = TOPs; |
463ee0b2 | 3956 | STRLEN len; |
67306194 NC |
3957 | STRLEN min; |
3958 | SV *dest; | |
3959 | const U8 *s; | |
3960 | U8 *d; | |
79072805 | 3961 | |
67306194 NC |
3962 | SvGETMAGIC(source); |
3963 | ||
1921e031 | 3964 | if ( SvPADTMP(source) |
5cd5e2d6 FC |
3965 | && !SvREADONLY(source) && SvPOK(source) |
3966 | && !DO_UTF8(source) | |
130c5df3 KW |
3967 | && ( |
3968 | #ifdef USE_LOCALE_CTYPE | |
3969 | (IN_LC_RUNTIME(LC_CTYPE)) | |
31f05a37 | 3970 | ? ! IN_UTF8_CTYPE_LOCALE |
130c5df3 KW |
3971 | : |
3972 | #endif | |
3973 | ! IN_UNI_8_BIT)) | |
31f05a37 KW |
3974 | { |
3975 | ||
3976 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
3977 | * make the loop tight, so we overwrite the source with the dest before | |
3978 | * looking at it, and we need to look at the original source | |
3979 | * afterwards. There would also need to be code added to handle | |
3980 | * switching to not in-place in midstream if we run into characters | |
3981 | * that change the length. Since being in locale overrides UNI_8_BIT, | |
3982 | * that latter becomes irrelevant in the above test; instead for | |
3983 | * locale, the size can't normally change, except if the locale is a | |
3984 | * UTF-8 one */ | |
67306194 NC |
3985 | dest = source; |
3986 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3987 | min = len + 1; | |
3988 | } else { | |
a0ed51b3 | 3989 | dTARGET; |
a0ed51b3 | 3990 | |
67306194 | 3991 | dest = TARG; |
128c9517 | 3992 | |
841a5e18 | 3993 | s = (const U8*)SvPV_nomg_const(source, len); |
67306194 NC |
3994 | min = len + 1; |
3995 | ||
3996 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 3997 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
3998 | (void)SvPOK_only(dest); |
3999 | ||
4000 | SETs(dest); | |
a0ed51b3 | 4001 | } |
31351b04 | 4002 | |
8b7358b9 KW |
4003 | #ifdef USE_LOCALE_CTYPE |
4004 | ||
4005 | if (IN_LC_RUNTIME(LC_CTYPE)) { | |
4006 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
4007 | } | |
4008 | ||
4009 | #endif | |
4010 | ||
67306194 NC |
4011 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
4012 | to check DO_UTF8 again here. */ | |
4013 | ||
4014 | if (DO_UTF8(source)) { | |
4015 | const U8 *const send = s + len; | |
bfac13d4 | 4016 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
67306194 | 4017 | |
4c8a458a KW |
4018 | /* All occurrences of these are to be moved to follow any other marks. |
4019 | * This is context-dependent. We may not be passed enough context to | |
4020 | * move the iota subscript beyond all of them, but we do the best we can | |
4021 | * with what we're given. The result is always better than if we | |
4022 | * hadn't done this. And, the problem would only arise if we are | |
4023 | * passed a character without all its combining marks, which would be | |
4024 | * the caller's mistake. The information this is based on comes from a | |
4025 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
4026 | * itself) and so can't be checked properly to see if it ever gets | |
4027 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 4028 | bool in_iota_subscript = FALSE; |
00f254e2 | 4029 | |
67306194 | 4030 | while (s < send) { |
3e16b0e6 KW |
4031 | STRLEN u; |
4032 | STRLEN ulen; | |
4033 | UV uv; | |
7dbf68d2 | 4034 | if (in_iota_subscript && ! _is_utf8_mark(s)) { |
3e16b0e6 | 4035 | |
00f254e2 | 4036 | /* A non-mark. Time to output the iota subscript */ |
a78bc3c6 KW |
4037 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4038 | d += capital_iota_len; | |
00f254e2 | 4039 | in_iota_subscript = FALSE; |
8e058693 | 4040 | } |
00f254e2 | 4041 | |
8e058693 KW |
4042 | /* Then handle the current character. Get the changed case value |
4043 | * and copy it to the output buffer */ | |
00f254e2 | 4044 | |
8e058693 | 4045 | u = UTF8SKIP(s); |
130c5df3 | 4046 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 4047 | uv = _toUPPER_utf8_flags(s, send, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4048 | #else |
a1a5ec35 | 4049 | uv = _toUPPER_utf8_flags(s, send, tmpbuf, &ulen, 0); |
130c5df3 | 4050 | #endif |
a78bc3c6 KW |
4051 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 |
4052 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
8e058693 | 4053 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
4b88fb76 | 4054 | && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI) |
8e058693 KW |
4055 | { |
4056 | in_iota_subscript = TRUE; | |
4057 | } | |
4058 | else { | |
4059 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4060 | /* If the eventually required minimum size outgrows the | |
4061 | * available space, we need to grow. */ | |
4062 | const UV o = d - (U8*)SvPVX_const(dest); | |
4063 | ||
4064 | /* If someone uppercases one million U+03B0s we SvGROW() | |
4065 | * one million times. Or we could try guessing how much to | |
4066 | * allocate without allocating too much. Such is life. | |
4067 | * See corresponding comment in lc code for another option | |
4068 | * */ | |
10656159 | 4069 | d = o + (U8*) SvGROW(dest, min); |
8e058693 KW |
4070 | } |
4071 | Copy(tmpbuf, d, ulen, U8); | |
4072 | d += ulen; | |
4073 | } | |
4074 | s += u; | |
67306194 | 4075 | } |
4c8a458a | 4076 | if (in_iota_subscript) { |
a78bc3c6 KW |
4077 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
4078 | d += capital_iota_len; | |
4c8a458a | 4079 | } |
67306194 NC |
4080 | SvUTF8_on(dest); |
4081 | *d = '\0'; | |
094a2f8c | 4082 | |
67306194 | 4083 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4c8a458a KW |
4084 | } |
4085 | else { /* Not UTF-8 */ | |
67306194 NC |
4086 | if (len) { |
4087 | const U8 *const send = s + len; | |
00f254e2 KW |
4088 | |
4089 | /* Use locale casing if in locale; regular style if not treating | |
4090 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4091 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4092 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4093 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
31f05a37 KW |
4094 | if (IN_UTF8_CTYPE_LOCALE) { |
4095 | goto do_uni_rules; | |
4096 | } | |
67306194 | 4097 | for (; s < send; d++, s++) |
31f05a37 | 4098 | *d = (U8) toUPPER_LC(*s); |
31351b04 | 4099 | } |
130c5df3 KW |
4100 | else |
4101 | #endif | |
4102 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4103 | for (; s < send; d++, s++) { |
67306194 | 4104 | *d = toUPPER(*s); |
00f254e2 | 4105 | } |
31351b04 | 4106 | } |
00f254e2 | 4107 | else { |
91191cf7 | 4108 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4109 | do_uni_rules: |
91191cf7 | 4110 | #endif |
00f254e2 KW |
4111 | for (; s < send; d++, s++) { |
4112 | *d = toUPPER_LATIN1_MOD(*s); | |
d14578b8 KW |
4113 | if (LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS)) { |
4114 | continue; | |
4115 | } | |
00f254e2 KW |
4116 | |
4117 | /* The mainstream case is the tight loop above. To avoid | |
4118 | * extra tests in that, all three characters that require | |
4119 | * special handling are mapped by the MOD to the one tested | |
4120 | * just above. | |
4121 | * Use the source to distinguish between the three cases */ | |
4122 | ||
79e064b9 KW |
4123 | #if UNICODE_MAJOR_VERSION > 2 \ |
4124 | || (UNICODE_MAJOR_VERSION == 2 && UNICODE_DOT_VERSION >= 1 \ | |
4125 | && UNICODE_DOT_DOT_VERSION >= 8) | |
00f254e2 KW |
4126 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { |
4127 | ||
4128 | /* uc() of this requires 2 characters, but they are | |
4129 | * ASCII. If not enough room, grow the string */ | |
4130 | if (SvLEN(dest) < ++min) { | |
4131 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4132 | d = o + (U8*) SvGROW(dest, min); |
00f254e2 KW |
4133 | } |
4134 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
4135 | continue; /* Back to the tight loop; still in ASCII */ | |
4136 | } | |
79e064b9 | 4137 | #endif |
00f254e2 KW |
4138 | |
4139 | /* The other two special handling characters have their | |
4140 | * upper cases outside the latin1 range, hence need to be | |
4141 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
4142 | * here we are somewhere in the middle of processing a | |
4143 | * non-UTF-8 string, and realize that we will have to convert | |
4144 | * the whole thing to UTF-8. What to do? There are | |
4145 | * several possibilities. The simplest to code is to | |
4146 | * convert what we have so far, set a flag, and continue on | |
4147 | * in the loop. The flag would be tested each time through | |
4148 | * the loop, and if set, the next character would be | |
4149 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
4150 | * to slow down the mainstream case at all for this fairly | |
4151 | * rare case, so I didn't want to add a test that didn't | |
4152 | * absolutely have to be there in the loop, besides the | |
4153 | * possibility that it would get too complicated for | |
4154 | * optimizers to deal with. Another possibility is to just | |
4155 | * give up, convert the source to UTF-8, and restart the | |
4156 | * function that way. Another possibility is to convert | |
4157 | * both what has already been processed and what is yet to | |
4158 | * come separately to UTF-8, then jump into the loop that | |
4159 | * handles UTF-8. But the most efficient time-wise of the | |
4160 | * ones I could think of is what follows, and turned out to | |
4161 | * not require much extra code. */ | |
4162 | ||
4163 | /* Convert what we have so far into UTF-8, telling the | |
4164 | * function that we know it should be converted, and to | |
4165 | * allow extra space for what we haven't processed yet. | |
4166 | * Assume the worst case space requirements for converting | |
4167 | * what we haven't processed so far: that it will require | |
4168 | * two bytes for each remaining source character, plus the | |
4169 | * NUL at the end. This may cause the string pointer to | |
4170 | * move, so re-find it. */ | |
4171 | ||
4172 | len = d - (U8*)SvPVX_const(dest); | |
4173 | SvCUR_set(dest, len); | |
4174 | len = sv_utf8_upgrade_flags_grow(dest, | |
4175 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
4176 | (send -s) * 2 + 1); | |
4177 | d = (U8*)SvPVX(dest) + len; | |
4178 | ||
00f254e2 KW |
4179 | /* Now process the remainder of the source, converting to |
4180 | * upper and UTF-8. If a resulting byte is invariant in | |
4181 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
4182 | * append it to the output. */ | |
00f254e2 | 4183 | for (; s < send; s++) { |
0ecfbd28 KW |
4184 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); |
4185 | d += len; | |
00f254e2 KW |
4186 | } |
4187 | ||
4188 | /* Here have processed the whole source; no need to continue | |
4189 | * with the outer loop. Each character has been converted | |
4190 | * to upper case and converted to UTF-8 */ | |
4191 | ||
4192 | break; | |
4193 | } /* End of processing all latin1-style chars */ | |
4194 | } /* End of processing all chars */ | |
4195 | } /* End of source is not empty */ | |
4196 | ||
67306194 | 4197 | if (source != dest) { |
00f254e2 | 4198 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
4199 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
4200 | } | |
00f254e2 | 4201 | } /* End of isn't utf8 */ |
130c5df3 | 4202 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4203 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4204 | TAINT; |
4205 | SvTAINTED_on(dest); | |
4206 | } | |
130c5df3 | 4207 | #endif |
539689e7 FC |
4208 | if (dest != source && SvTAINTED(source)) |
4209 | SvTAINT(dest); | |
67306194 | 4210 | SvSETMAGIC(dest); |
3cb4e04f | 4211 | return NORMAL; |
79072805 LW |
4212 | } |
4213 | ||
4214 | PP(pp_lc) | |
4215 | { | |
39644a26 | 4216 | dSP; |
ec9af7d4 | 4217 | SV *source = TOPs; |
463ee0b2 | 4218 | STRLEN len; |
ec9af7d4 NC |
4219 | STRLEN min; |
4220 | SV *dest; | |
4221 | const U8 *s; | |
4222 | U8 *d; | |
79072805 | 4223 | |
ec9af7d4 NC |
4224 | SvGETMAGIC(source); |
4225 | ||
1921e031 | 4226 | if ( SvPADTMP(source) |
5cd5e2d6 FC |
4227 | && !SvREADONLY(source) && SvPOK(source) |
4228 | && !DO_UTF8(source)) { | |
ec9af7d4 | 4229 | |
00f254e2 KW |
4230 | /* We can convert in place, as lowercasing anything in the latin1 range |
4231 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
4232 | dest = source; |
4233 | s = d = (U8*)SvPV_force_nomg(source, len); | |
4234 | min = len + 1; | |
4235 | } else { | |
a0ed51b3 | 4236 | dTARGET; |
a0ed51b3 | 4237 | |
ec9af7d4 NC |
4238 | dest = TARG; |
4239 | ||
841a5e18 | 4240 | s = (const U8*)SvPV_nomg_const(source, len); |
ec9af7d4 | 4241 | min = len + 1; |
128c9517 | 4242 | |
ec9af7d4 | 4243 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 4244 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
4245 | (void)SvPOK_only(dest); |
4246 | ||
4247 | SETs(dest); | |
4248 | } | |
4249 | ||
8b7358b9 KW |
4250 | #ifdef USE_LOCALE_CTYPE |
4251 | ||
4252 | if (IN_LC_RUNTIME(LC_CTYPE)) { | |
4253 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
4254 | } | |
4255 | ||
4256 | #endif | |
4257 | ||
ec9af7d4 NC |
4258 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
4259 | to check DO_UTF8 again here. */ | |
4260 | ||
4261 | if (DO_UTF8(source)) { | |
4262 | const U8 *const send = s + len; | |
4263 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
4264 | ||
4265 | while (s < send) { | |
06b5486a KW |
4266 | const STRLEN u = UTF8SKIP(s); |
4267 | STRLEN ulen; | |
00f254e2 | 4268 | |
130c5df3 | 4269 | #ifdef USE_LOCALE_CTYPE |
a1a5ec35 | 4270 | _toLOWER_utf8_flags(s, send, tmpbuf, &ulen, IN_LC_RUNTIME(LC_CTYPE)); |
130c5df3 | 4271 | #else |
a1a5ec35 | 4272 | _toLOWER_utf8_flags(s, send, tmpbuf, &ulen, 0); |
130c5df3 | 4273 | #endif |
00f254e2 | 4274 | |
06b5486a | 4275 | /* Here is where we would do context-sensitive actions. See the |
6006ebd0 | 4276 | * commit message for 86510fb15 for why there isn't any */ |
00f254e2 | 4277 | |
06b5486a | 4278 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 4279 | |
06b5486a KW |
4280 | /* If the eventually required minimum size outgrows the |
4281 | * available space, we need to grow. */ | |
4282 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 4283 | |
06b5486a KW |
4284 | /* If someone lowercases one million U+0130s we SvGROW() one |
4285 | * million times. Or we could try guessing how much to | |
4286 | * allocate without allocating too much. Such is life. | |
4287 | * Another option would be to grow an extra byte or two more | |
4288 | * each time we need to grow, which would cut down the million | |
4289 | * to 500K, with little waste */ | |
10656159 | 4290 | d = o + (U8*) SvGROW(dest, min); |
06b5486a | 4291 | } |
86510fb1 | 4292 | |
06b5486a KW |
4293 | /* Copy the newly lowercased letter to the output buffer we're |
4294 | * building */ | |
4295 | Copy(tmpbuf, d, ulen, U8); | |
4296 | d += ulen; | |
4297 | s += u; | |
00f254e2 | 4298 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4299 | SvUTF8_on(dest); |
4300 | *d = '\0'; | |
4301 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
00f254e2 | 4302 | } else { /* Not utf8 */ |
31351b04 | 4303 | if (len) { |
ec9af7d4 | 4304 | const U8 *const send = s + len; |
00f254e2 KW |
4305 | |
4306 | /* Use locale casing if in locale; regular style if not treating | |
4307 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4308 | * whole thing in a tight loop, for speed, */ | |
130c5df3 | 4309 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4310 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
ec9af7d4 NC |
4311 | for (; s < send; d++, s++) |
4312 | *d = toLOWER_LC(*s); | |
445bf929 | 4313 | } |
130c5df3 KW |
4314 | else |
4315 | #endif | |
4316 | if (! IN_UNI_8_BIT) { | |
00f254e2 | 4317 | for (; s < send; d++, s++) { |
ec9af7d4 | 4318 | *d = toLOWER(*s); |
00f254e2 KW |
4319 | } |
4320 | } | |
4321 | else { | |
4322 | for (; s < send; d++, s++) { | |
4323 | *d = toLOWER_LATIN1(*s); | |
4324 | } | |
31351b04 | 4325 | } |
bbce6d69 | 4326 | } |
ec9af7d4 NC |
4327 | if (source != dest) { |
4328 | *d = '\0'; | |
4329 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4330 | } | |
79072805 | 4331 | } |
130c5df3 | 4332 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4333 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4334 | TAINT; |
4335 | SvTAINTED_on(dest); | |
4336 | } | |
130c5df3 | 4337 | #endif |
539689e7 FC |
4338 | if (dest != source && SvTAINTED(source)) |
4339 | SvTAINT(dest); | |
ec9af7d4 | 4340 | SvSETMAGIC(dest); |
3cb4e04f | 4341 | return NORMAL; |
79072805 LW |
4342 | } |
4343 | ||
a0d0e21e | 4344 | PP(pp_quotemeta) |
79072805 | 4345 | { |
20b7effb | 4346 | dSP; dTARGET; |
1b6737cc | 4347 | SV * const sv = TOPs; |
a0d0e21e | 4348 | STRLEN len; |
eb578fdb | 4349 | const char *s = SvPV_const(sv,len); |
79072805 | 4350 | |
7e2040f0 | 4351 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4352 | if (len) { |
eb578fdb | 4353 | char *d; |
862a34c6 | 4354 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4355 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4356 | d = SvPVX(TARG); |
7e2040f0 | 4357 | if (DO_UTF8(sv)) { |
0dd2cdef | 4358 | while (len) { |
29050de5 | 4359 | STRLEN ulen = UTF8SKIP(s); |
2e2b2571 KW |
4360 | bool to_quote = FALSE; |
4361 | ||
4362 | if (UTF8_IS_INVARIANT(*s)) { | |
4363 | if (_isQUOTEMETA(*s)) { | |
4364 | to_quote = TRUE; | |
4365 | } | |
4366 | } | |
042d9e50 | 4367 | else if (UTF8_IS_NEXT_CHAR_DOWNGRADEABLE(s, s + len)) { |
3fea7d29 | 4368 | if ( |
130c5df3 | 4369 | #ifdef USE_LOCALE_CTYPE |
20adcf7c KW |
4370 | /* In locale, we quote all non-ASCII Latin1 chars. |
4371 | * Otherwise use the quoting rules */ | |
3fea7d29 BF |
4372 | |
4373 | IN_LC_RUNTIME(LC_CTYPE) | |
4374 | || | |
4375 | #endif | |
a62b247b | 4376 | _isQUOTEMETA(EIGHT_BIT_UTF8_TO_NATIVE(*s, *(s + 1)))) |
2e2b2571 KW |
4377 | { |
4378 | to_quote = TRUE; | |
4379 | } | |
4380 | } | |
685289b5 | 4381 | else if (is_QUOTEMETA_high(s)) { |
2e2b2571 KW |
4382 | to_quote = TRUE; |
4383 | } | |
4384 | ||
4385 | if (to_quote) { | |
4386 | *d++ = '\\'; | |
4387 | } | |
29050de5 KW |
4388 | if (ulen > len) |
4389 | ulen = len; | |
4390 | len -= ulen; | |
4391 | while (ulen--) | |
4392 | *d++ = *s++; | |
0dd2cdef | 4393 | } |
7e2040f0 | 4394 | SvUTF8_on(TARG); |
0dd2cdef | 4395 | } |
2e2b2571 KW |
4396 | else if (IN_UNI_8_BIT) { |
4397 | while (len--) { | |
4398 | if (_isQUOTEMETA(*s)) | |
4399 | *d++ = '\\'; | |
4400 | *d++ = *s++; | |
4401 | } | |
4402 | } | |
0dd2cdef | 4403 | else { |
2e2b2571 KW |
4404 | /* For non UNI_8_BIT (and hence in locale) just quote all \W |
4405 | * including everything above ASCII */ | |
0dd2cdef | 4406 | while (len--) { |
adfec831 | 4407 | if (!isWORDCHAR_A(*s)) |
0dd2cdef LW |
4408 | *d++ = '\\'; |
4409 | *d++ = *s++; | |
4410 | } | |
79072805 | 4411 | } |
a0d0e21e | 4412 | *d = '\0'; |
349d4f2f | 4413 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4414 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4415 | } |
a0d0e21e LW |
4416 | else |
4417 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4418 | SETTARG; |
cfe40115 | 4419 | return NORMAL; |
79072805 LW |
4420 | } |
4421 | ||
838f2281 BF |
4422 | PP(pp_fc) |
4423 | { | |
838f2281 BF |
4424 | dTARGET; |
4425 | dSP; | |
4426 | SV *source = TOPs; | |
4427 | STRLEN len; | |
4428 | STRLEN min; | |
4429 | SV *dest; | |
4430 | const U8 *s; | |
4431 | const U8 *send; | |
4432 | U8 *d; | |
bfac13d4 | 4433 | U8 tmpbuf[UTF8_MAXBYTES_CASE + 1]; |
9b63e895 KW |
4434 | #if UNICODE_MAJOR_VERSION > 3 /* no multifolds in early Unicode */ \ |
4435 | || (UNICODE_MAJOR_VERSION == 3 && ( UNICODE_DOT_VERSION > 0) \ | |
4436 | || UNICODE_DOT_DOT_VERSION > 0) | |
a4b69695 KW |
4437 | const bool full_folding = TRUE; /* This variable is here so we can easily |
4438 | move to more generality later */ | |
9b63e895 KW |
4439 | #else |
4440 | const bool full_folding = FALSE; | |
4441 | #endif | |
838f2281 | 4442 | const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 ) |
130c5df3 KW |
4443 | #ifdef USE_LOCALE_CTYPE |
4444 | | ( IN_LC_RUNTIME(LC_CTYPE) ? FOLD_FLAGS_LOCALE : 0 ) | |
4445 | #endif | |
4446 | ; | |
838f2281 BF |
4447 | |
4448 | /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me. | |
4449 | * You are welcome(?) -Hugmeir | |
4450 | */ | |
4451 | ||
4452 | SvGETMAGIC(source); | |
4453 | ||
4454 | dest = TARG; | |
4455 | ||
4456 | if (SvOK(source)) { | |
4457 | s = (const U8*)SvPV_nomg_const(source, len); | |
4458 | } else { | |
4459 | if (ckWARN(WARN_UNINITIALIZED)) | |
4460 | report_uninit(source); | |
4461 | s = (const U8*)""; | |
4462 | len = 0; | |
4463 | } | |
4464 | ||
4465 | min = len + 1; | |
4466 | ||
4467 | SvUPGRADE(dest, SVt_PV); | |
4468 | d = (U8*)SvGROW(dest, min); | |
4469 | (void)SvPOK_only(dest); | |
4470 | ||
4471 | SETs(dest); | |
4472 | ||
4473 | send = s + len; | |
8b7358b9 KW |
4474 | |
4475 | #ifdef USE_LOCALE_CTYPE | |
4476 | ||
4477 | if ( IN_LC_RUNTIME(LC_CTYPE) ) { /* Under locale */ | |
4478 | _CHECK_AND_WARN_PROBLEMATIC_LOCALE; | |
4479 | } | |
4480 | ||
4481 | #endif | |
4482 | ||
838f2281 | 4483 | if (DO_UTF8(source)) { /* UTF-8 flagged string. */ |
838f2281 BF |
4484 | while (s < send) { |
4485 | const STRLEN u = UTF8SKIP(s); | |
4486 | STRLEN ulen; | |
4487 | ||
a1a5ec35 | 4488 | _toFOLD_utf8_flags(s, send, tmpbuf, &ulen, flags); |
838f2281 BF |
4489 | |
4490 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4491 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4492 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4493 | } |
4494 | ||
4495 | Copy(tmpbuf, d, ulen, U8); | |
4496 | d += ulen; | |
4497 | s += u; | |
4498 | } | |
4499 | SvUTF8_on(dest); | |
838f2281 | 4500 | } /* Unflagged string */ |
0902dd32 | 4501 | else if (len) { |
130c5df3 | 4502 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4503 | if ( IN_LC_RUNTIME(LC_CTYPE) ) { /* Under locale */ |
31f05a37 KW |
4504 | if (IN_UTF8_CTYPE_LOCALE) { |
4505 | goto do_uni_folding; | |
4506 | } | |
838f2281 | 4507 | for (; s < send; d++, s++) |
ea36a843 | 4508 | *d = (U8) toFOLD_LC(*s); |
838f2281 | 4509 | } |
130c5df3 KW |
4510 | else |
4511 | #endif | |
4512 | if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */ | |
838f2281 | 4513 | for (; s < send; d++, s++) |
d22b930b | 4514 | *d = toFOLD(*s); |
838f2281 BF |
4515 | } |
4516 | else { | |
91191cf7 | 4517 | #ifdef USE_LOCALE_CTYPE |
31f05a37 | 4518 | do_uni_folding: |
91191cf7 | 4519 | #endif |
d14578b8 KW |
4520 | /* For ASCII and the Latin-1 range, there's only two troublesome |
4521 | * folds, \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full | |
22e255cb | 4522 | * casefolding becomes 'ss'; and \x{B5} (\N{MICRO SIGN}), which |
d14578b8 KW |
4523 | * under any fold becomes \x{3BC} (\N{GREEK SMALL LETTER MU}) -- |
4524 | * For the rest, the casefold is their lowercase. */ | |
838f2281 BF |
4525 | for (; s < send; d++, s++) { |
4526 | if (*s == MICRO_SIGN) { | |
d14578b8 KW |
4527 | /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, |
4528 | * which is outside of the latin-1 range. There's a couple | |
4529 | * of ways to deal with this -- khw discusses them in | |
4530 | * pp_lc/uc, so go there :) What we do here is upgrade what | |
4531 | * we had already casefolded, then enter an inner loop that | |
4532 | * appends the rest of the characters as UTF-8. */ | |
838f2281 BF |
4533 | len = d - (U8*)SvPVX_const(dest); |
4534 | SvCUR_set(dest, len); | |
4535 | len = sv_utf8_upgrade_flags_grow(dest, | |
4536 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
ea4d335b KW |
4537 | /* The max expansion for latin1 |
4538 | * chars is 1 byte becomes 2 */ | |
4539 | (send -s) * 2 + 1); | |
838f2281 BF |
4540 | d = (U8*)SvPVX(dest) + len; |
4541 | ||
a78bc3c6 KW |
4542 | Copy(GREEK_SMALL_LETTER_MU_UTF8, d, small_mu_len, U8); |
4543 | d += small_mu_len; | |
838f2281 BF |
4544 | s++; |
4545 | for (; s < send; s++) { | |
4546 | STRLEN ulen; | |
4547 | UV fc = _to_uni_fold_flags(*s, tmpbuf, &ulen, flags); | |
6f2d5cbc | 4548 | if UVCHR_IS_INVARIANT(fc) { |
d14578b8 KW |
4549 | if (full_folding |
4550 | && *s == LATIN_SMALL_LETTER_SHARP_S) | |
4551 | { | |
838f2281 BF |
4552 | *d++ = 's'; |
4553 | *d++ = 's'; | |
4554 | } | |
4555 | else | |
4556 | *d++ = (U8)fc; | |
4557 | } | |
4558 | else { | |
4559 | Copy(tmpbuf, d, ulen, U8); | |
4560 | d += ulen; | |
4561 | } | |
4562 | } | |
4563 | break; | |
4564 | } | |
4565 | else if (full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) { | |
d14578b8 KW |
4566 | /* Under full casefolding, LATIN SMALL LETTER SHARP S |
4567 | * becomes "ss", which may require growing the SV. */ | |
838f2281 BF |
4568 | if (SvLEN(dest) < ++min) { |
4569 | const UV o = d - (U8*)SvPVX_const(dest); | |
10656159 | 4570 | d = o + (U8*) SvGROW(dest, min); |
838f2281 BF |
4571 | } |
4572 | *(d)++ = 's'; | |
4573 | *d = 's'; | |
4574 | } | |
d14578b8 KW |
4575 | else { /* If it's not one of those two, the fold is their lower |
4576 | case */ | |
838f2281 BF |
4577 | *d = toLOWER_LATIN1(*s); |
4578 | } | |
4579 | } | |
4580 | } | |
4581 | } | |
4582 | *d = '\0'; | |
4583 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4584 | ||
130c5df3 | 4585 | #ifdef USE_LOCALE_CTYPE |
d6ded950 | 4586 | if (IN_LC_RUNTIME(LC_CTYPE)) { |
445bf929 KW |
4587 | TAINT; |
4588 | SvTAINTED_on(dest); | |
4589 | } | |
130c5df3 | 4590 | #endif |
838f2281 BF |
4591 | if (SvTAINTED(source)) |
4592 | SvTAINT(dest); | |
4593 | SvSETMAGIC(dest); | |
4594 | RETURN; | |
4595 | } | |
4596 | ||
a0d0e21e | 4597 | /* Arrays. */ |
79072805 | 4598 | |
a0d0e21e | 4599 | PP(pp_aslice) |
79072805 | 4600 | { |
20b7effb | 4601 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4602 | AV *const av = MUTABLE_AV(POPs); |
4603 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 4604 | |
a0d0e21e | 4605 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4606 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4607 | bool can_preserve = FALSE; | |
4608 | ||
4609 | if (localizing) { | |
4610 | MAGIC *mg; | |
4611 | HV *stash; | |
4612 | ||
4613 | can_preserve = SvCANEXISTDELETE(av); | |
4614 | } | |
4615 | ||
4616 | if (lval && localizing) { | |
eb578fdb | 4617 | SV **svp; |
c70927a6 | 4618 | SSize_t max = -1; |
924508f0 | 4619 | for (svp = MARK + 1; svp <= SP; svp++) { |
c70927a6 | 4620 | const SSize_t elem = SvIV(*svp); |
748a9306 LW |
4621 | if (elem > max) |
4622 | max = elem; | |
4623 | } | |
4624 | if (max > AvMAX(av)) | |
4625 | av_extend(av, max); | |
4626 | } | |
4ad10a0b | 4627 | |
a0d0e21e | 4628 | while (++MARK <= SP) { |
eb578fdb | 4629 | SV **svp; |
c70927a6 | 4630 | SSize_t elem = SvIV(*MARK); |
4ad10a0b | 4631 | bool preeminent = TRUE; |
a0d0e21e | 4632 | |
4ad10a0b VP |
4633 | if (localizing && can_preserve) { |
4634 | /* If we can determine whether the element exist, | |
4635 | * Try to preserve the existenceness of a tied array | |
4636 | * element by using EXISTS and DELETE if possible. | |
4637 | * Fallback to FETCH and STORE otherwise. */ | |
4638 | preeminent = av_exists(av, elem); | |
4639 | } | |
4640 | ||
a0d0e21e LW |
4641 | svp = av_fetch(av, elem, lval); |
4642 | if (lval) { | |
ce0d59fd | 4643 | if (!svp || !*svp) |
cea2e8a9 | 4644 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4645 | if (localizing) { |
4646 | if (preeminent) | |
4647 | save_aelem(av, elem, svp); | |
4648 | else | |
4649 | SAVEADELETE(av, elem); | |
4650 | } | |
79072805 | 4651 | } |
3280af22 | 4652 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4653 | } |
4654 | } | |
82334630 | 4655 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 4656 | MARK = ORIGMARK; |
04ab2c87 | 4657 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4658 | SP = MARK; |
4659 | } | |
79072805 LW |
4660 | RETURN; |
4661 | } | |
4662 | ||
6dd3e0f2 RZ |
4663 | PP(pp_kvaslice) |
4664 | { | |
20b7effb | 4665 | dSP; dMARK; |
6dd3e0f2 RZ |
4666 | AV *const av = MUTABLE_AV(POPs); |
4667 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 4668 | SSize_t items = SP - MARK; |
6dd3e0f2 RZ |
4669 | |
4670 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
4671 | const I32 flags = is_lvalue_sub(); | |
4672 | if (flags) { | |
4673 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 4674 | /* diag_listed_as: Can't modify %s in %s */ |
6dd3e0f2 RZ |
4675 | Perl_croak(aTHX_ "Can't modify index/value array slice in list assignment"); |
4676 | lval = flags; | |
4677 | } | |
4678 | } | |
4679 | ||
4680 | MEXTEND(SP,items); | |
4681 | while (items > 1) { | |
4682 | *(MARK+items*2-1) = *(MARK+items); | |
4683 | items--; | |
4684 | } | |
4685 | items = SP-MARK; | |
4686 | SP += items; | |
4687 | ||
4688 | while (++MARK <= SP) { | |
4689 | SV **svp; | |
4690 | ||
4691 | svp = av_fetch(av, SvIV(*MARK), lval); | |
4692 | if (lval) { | |
4693 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
4694 | DIE(aTHX_ PL_no_aelem, SvIV(*MARK)); | |
4695 | } | |
4696 | *MARK = sv_mortalcopy(*MARK); | |
4697 | } | |
4698 | *++MARK = svp ? *svp : &PL_sv_undef; | |
4699 | } | |
82334630 | 4700 | if (GIMME_V != G_ARRAY) { |
6dd3e0f2 RZ |
4701 | MARK = SP - items*2; |
4702 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
4703 | SP = MARK; | |
4704 | } | |
4705 | RETURN; | |
4706 | } | |
4707 | ||
b1c05ba5 | 4708 | |
878d132a NC |
4709 | PP(pp_aeach) |
4710 | { | |
878d132a | 4711 | dSP; |
502c6561 | 4712 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 4713 | const U8 gimme = GIMME_V; |
453d94a9 | 4714 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4715 | const IV current = (*iterp)++; |
4716 | ||
b9f2b683 | 4717 | if (current > av_tindex(array)) { |
878d132a NC |
4718 | *iterp = 0; |
4719 | if (gimme == G_SCALAR) | |
4720 | RETPUSHUNDEF; | |
4721 | else | |
4722 | RETURN; | |
4723 | } | |
4724 | ||
4725 | EXTEND(SP, 2); | |
e1dccc0d | 4726 | mPUSHi(current); |
878d132a NC |
4727 | if (gimme == G_ARRAY) { |
4728 | SV **const element = av_fetch(array, current, 0); | |
4729 | PUSHs(element ? *element : &PL_sv_undef); | |
4730 | } | |
4731 | RETURN; | |
4732 | } | |
4733 | ||
b1c05ba5 | 4734 | /* also used for: pp_avalues()*/ |
878d132a NC |
4735 | PP(pp_akeys) |
4736 | { | |
878d132a | 4737 | dSP; |
502c6561 | 4738 | AV *array = MUTABLE_AV(POPs); |
1c23e2bd | 4739 | const U8 gimme = GIMME_V; |
878d132a NC |
4740 | |
4741 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4742 | ||
4743 | if (gimme == G_SCALAR) { | |
4744 | dTARGET; | |
b9f2b683 | 4745 | PUSHi(av_tindex(array) + 1); |
878d132a NC |
4746 | } |
4747 | else if (gimme == G_ARRAY) { | |
738155d2 FC |
4748 | if (UNLIKELY(PL_op->op_private & OPpMAYBE_LVSUB)) { |
4749 | const I32 flags = is_lvalue_sub(); | |
4750 | if (flags && !(flags & OPpENTERSUB_INARGS)) | |
4751 | /* diag_listed_as: Can't modify %s in %s */ | |
4752 | Perl_croak(aTHX_ | |
4753 | "Can't modify keys on array in list assignment"); | |
4754 | } | |
4755 | { | |
878d132a | 4756 | IV n = Perl_av_len(aTHX_ array); |
e1dccc0d | 4757 | IV i; |
878d132a NC |
4758 | |
4759 | EXTEND(SP, n + 1); | |
4760 | ||
73665bc4 FC |
4761 | if ( PL_op->op_type == OP_AKEYS |
4762 | || ( PL_op->op_type == OP_AVHVSWITCH | |
cd642408 | 4763 | && (PL_op->op_private & 3) + OP_AEACH == OP_AKEYS )) |
73665bc4 | 4764 | { |
e1dccc0d | 4765 | for (i = 0; i <= n; i++) { |
878d132a NC |
4766 | mPUSHi(i); |
4767 | } | |
4768 | } | |
4769 | else { | |
4770 | for (i = 0; i <= n; i++) { | |
4771 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4772 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4773 | } | |
4774 | } | |
738155d2 | 4775 | } |
878d132a NC |
4776 | } |
4777 | RETURN; | |
4778 | } | |
4779 | ||
79072805 LW |
4780 | /* Associative arrays. */ |
4781 | ||
4782 | PP(pp_each) | |
4783 | { | |
39644a26 | 4784 | dSP; |
85fbaab2 | 4785 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4786 | HE *entry; |
1c23e2bd | 4787 | const U8 gimme = GIMME_V; |
8ec5e241 | 4788 | |
6d822dc4 | 4789 | entry = hv_iternext(hash); |
79072805 | 4790 | |
79072805 LW |
4791 | EXTEND(SP, 2); |
4792 | if (entry) { | |
1b6737cc | 4793 | SV* const sv = hv_iterkeysv(entry); |
2b32fed8 | 4794 | PUSHs(sv); |
54310121 | 4795 | if (gimme == G_ARRAY) { |
59af0135 | 4796 | SV *val; |
6d822dc4 | 4797 | val = hv_iterval(hash, entry); |
59af0135 | 4798 | PUSHs(val); |
79072805 | 4799 | } |
79072805 | 4800 | } |
54310121 | 4801 | else if (gimme == G_SCALAR) |
79072805 LW |
4802 | RETPUSHUNDEF; |
4803 | ||
4804 | RETURN; | |
4805 | } | |
4806 | ||
7332a6c4 VP |
4807 | STATIC OP * |
4808 | S_do_delete_local(pTHX) | |
79072805 | 4809 | { |
39644a26 | 4810 | dSP; |
1c23e2bd | 4811 | const U8 gimme = GIMME_V; |
7332a6c4 VP |
4812 | const MAGIC *mg; |
4813 | HV *stash; | |
ca3f996a | 4814 | const bool sliced = !!(PL_op->op_private & OPpSLICE); |
626040f7 | 4815 | SV **unsliced_keysv = sliced ? NULL : sp--; |
ca3f996a | 4816 | SV * const osv = POPs; |
626040f7 | 4817 | SV **mark = sliced ? PL_stack_base + POPMARK : unsliced_keysv-1; |
ca3f996a FC |
4818 | dORIGMARK; |
4819 | const bool tied = SvRMAGICAL(osv) | |
7332a6c4 | 4820 | && mg_find((const SV *)osv, PERL_MAGIC_tied); |
ca3f996a FC |
4821 | const bool can_preserve = SvCANEXISTDELETE(osv); |
4822 | const U32 type = SvTYPE(osv); | |
626040f7 | 4823 | SV ** const end = sliced ? SP : unsliced_keysv; |
ca3f996a FC |
4824 | |
4825 | if (type == SVt_PVHV) { /* hash element */ | |
7332a6c4 | 4826 | HV * const hv = MUTABLE_HV(osv); |
ca3f996a | 4827 | while (++MARK <= end) { |
7332a6c4 VP |
4828 | SV * const keysv = *MARK; |
4829 | SV *sv = NULL; | |
4830 | bool preeminent = TRUE; | |
4831 | if (can_preserve) | |
4832 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4833 | if (tied) { | |
4834 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4835 | if (he) | |
4836 | sv = HeVAL(he); | |
4837 | else | |
4838 | preeminent = FALSE; | |
4839 | } | |
4840 | else { | |
4841 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
9332b95f FC |
4842 | if (preeminent) |
4843 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4844 | } |
4845 | if (preeminent) { | |
be6064fd | 4846 | if (!sv) DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
7332a6c4 VP |
4847 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); |
4848 | if (tied) { | |
4849 | *MARK = sv_mortalcopy(sv); | |
4850 | mg_clear(sv); | |
4851 | } else | |
4852 | *MARK = sv; | |
4853 | } | |
4854 | else { | |
4855 | SAVEHDELETE(hv, keysv); | |
4856 | *MARK = &PL_sv_undef; | |
4857 | } | |
4858 | } | |
ca3f996a FC |
4859 | } |
4860 | else if (type == SVt_PVAV) { /* array element */ | |
7332a6c4 VP |
4861 | if (PL_op->op_flags & OPf_SPECIAL) { |
4862 | AV * const av = MUTABLE_AV(osv); | |
ca3f996a | 4863 | while (++MARK <= end) { |
c70927a6 | 4864 | SSize_t idx = SvIV(*MARK); |
7332a6c4 VP |
4865 | SV *sv = NULL; |
4866 | bool preeminent = TRUE; | |
4867 | if (can_preserve) | |
4868 | preeminent = av_exists(av, idx); | |
4869 | if (tied) { | |
4870 | SV **svp = av_fetch(av, idx, 1); | |
4871 | if (svp) | |
4872 | sv = *svp; | |
4873 | else | |
4874 | preeminent = FALSE; | |
4875 | } | |
4876 | else { | |
4877 | sv = av_delete(av, idx, 0); | |
9332b95f FC |
4878 | if (preeminent) |
4879 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4880 | } |
4881 | if (preeminent) { | |
4882 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4883 | if (tied) { | |
4884 | *MARK = sv_mortalcopy(sv); | |
4885 | mg_clear(sv); | |
4886 | } else | |
4887 | *MARK = sv; | |
4888 | } | |
4889 | else { | |
4890 | SAVEADELETE(av, idx); | |
4891 | *MARK = &PL_sv_undef; | |
4892 | } | |
4893 | } | |
4894 | } | |
ca3f996a FC |
4895 | else |
4896 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4897 | } | |
4898 | else | |
7332a6c4 | 4899 | DIE(aTHX_ "Not a HASH reference"); |
ca3f996a | 4900 | if (sliced) { |
7332a6c4 VP |
4901 | if (gimme == G_VOID) |
4902 | SP = ORIGMARK; | |
4903 | else if (gimme == G_SCALAR) { | |
4904 | MARK = ORIGMARK; | |
4905 | if (SP > MARK) | |
4906 | *++MARK = *SP; | |
4907 | else | |
4908 | *++MARK = &PL_sv_undef; | |
4909 | SP = MARK; | |
4910 | } | |
4911 | } | |
ca3f996a | 4912 | else if (gimme != G_VOID) |
626040f7 | 4913 | PUSHs(*unsliced_keysv); |
7332a6c4 VP |
4914 | |
4915 | RETURN; | |
4916 | } | |
4917 | ||
4918 | PP(pp_delete) | |
4919 | { | |
7332a6c4 | 4920 | dSP; |
1c23e2bd | 4921 | U8 gimme; |
7332a6c4 VP |
4922 | I32 discard; |
4923 | ||
4924 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4925 | return do_delete_local(); | |
4926 | ||
4927 | gimme = GIMME_V; | |
4928 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4929 | |
cc0776d6 | 4930 | if (PL_op->op_private & (OPpSLICE|OPpKVSLICE)) { |
5f05dabc | 4931 | dMARK; dORIGMARK; |
85fbaab2 | 4932 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4933 | const U32 hvtype = SvTYPE(hv); |
cc0776d6 DIM |
4934 | int skip = 0; |
4935 | if (PL_op->op_private & OPpKVSLICE) { | |
4936 | SSize_t items = SP - MARK; | |
4937 | ||
4938 | MEXTEND(SP,items); | |
4939 | while (items > 1) { | |
4940 | *(MARK+items*2-1) = *(MARK+items); | |
4941 | items--; | |
4942 | } | |
4943 | items = SP - MARK; | |
4944 | SP += items; | |
4945 | skip = 1; | |
4946 | } | |
01020589 | 4947 | if (hvtype == SVt_PVHV) { /* hash element */ |
cc0776d6 DIM |
4948 | while ((MARK += (1+skip)) <= SP) { |
4949 | SV * const sv = hv_delete_ent(hv, *(MARK-skip), discard, 0); | |
01020589 GS |
4950 | *MARK = sv ? sv : &PL_sv_undef; |
4951 | } | |
5f05dabc | 4952 | } |
6d822dc4 MS |
4953 | else if (hvtype == SVt_PVAV) { /* array element */ |
4954 | if (PL_op->op_flags & OPf_SPECIAL) { | |
cc0776d6 DIM |
4955 | while ((MARK += (1+skip)) <= SP) { |
4956 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*(MARK-skip)), discard); | |
6d822dc4 MS |
4957 | *MARK = sv ? sv : &PL_sv_undef; |
4958 | } | |
4959 | } | |
01020589 GS |
4960 | } |
4961 | else | |
4962 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4963 | if (discard) |
4964 | SP = ORIGMARK; | |
4965 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4966 | MARK = ORIGMARK; |
9111c9c0 DM |
4967 | if (SP > MARK) |
4968 | *++MARK = *SP; | |
4969 | else | |
4970 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4971 | SP = MARK; |
4972 | } | |
4973 | } | |
4974 | else { | |
4975 | SV *keysv = POPs; | |
85fbaab2 | 4976 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4977 | SV *sv = NULL; |
97fcbf96 MB |
4978 | if (SvTYPE(hv) == SVt_PVHV) |
4979 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4980 | else if (SvTYPE(hv) == SVt_PVAV) { |
4981 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 4982 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
4983 | else |
4984 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 4985 | } |
97fcbf96 | 4986 | else |
cea2e8a9 | 4987 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 4988 | if (!sv) |
3280af22 | 4989 | sv = &PL_sv_undef; |
54310121 | 4990 | if (!discard) |
4991 | PUSHs(sv); | |
79072805 | 4992 | } |
79072805 LW |
4993 | RETURN; |
4994 | } | |
4995 | ||
a0d0e21e | 4996 | PP(pp_exists) |
79072805 | 4997 | { |
39644a26 | 4998 | dSP; |
afebc493 GS |
4999 | SV *tmpsv; |
5000 | HV *hv; | |
5001 | ||
c7e88ff3 | 5002 | if (UNLIKELY( PL_op->op_private & OPpEXISTS_SUB )) { |
afebc493 | 5003 | GV *gv; |
0bd48802 | 5004 | SV * const sv = POPs; |
f2c0649b | 5005 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
5006 | if (cv) |
5007 | RETPUSHYES; | |
5008 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
5009 | RETPUSHYES; | |
5010 | RETPUSHNO; | |
5011 | } | |
5012 | tmpsv = POPs; | |
85fbaab2 | 5013 | hv = MUTABLE_HV(POPs); |
c7e88ff3 | 5014 | if (LIKELY( SvTYPE(hv) == SVt_PVHV )) { |
ae77835f | 5015 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 5016 | RETPUSHYES; |
ef54e1a4 JH |
5017 | } |
5018 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 5019 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 5020 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
5021 | RETPUSHYES; |
5022 | } | |
ef54e1a4 JH |
5023 | } |
5024 | else { | |
cea2e8a9 | 5025 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 5026 | } |
a0d0e21e LW |
5027 | RETPUSHNO; |
5028 | } | |
79072805 | 5029 | |
a0d0e21e LW |
5030 | PP(pp_hslice) |
5031 | { | |
20b7effb | 5032 | dSP; dMARK; dORIGMARK; |
eb578fdb KW |
5033 | HV * const hv = MUTABLE_HV(POPs); |
5034 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
1b6737cc | 5035 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
d30e492c | 5036 | bool can_preserve = FALSE; |
79072805 | 5037 | |
eb85dfd3 DM |
5038 | if (localizing) { |
5039 | MAGIC *mg; | |
5040 | HV *stash; | |
5041 | ||
2c5f48c2 | 5042 | if (SvCANEXISTDELETE(hv)) |
d30e492c | 5043 | can_preserve = TRUE; |
eb85dfd3 DM |
5044 | } |
5045 | ||
6d822dc4 | 5046 | while (++MARK <= SP) { |
1b6737cc | 5047 | SV * const keysv = *MARK; |
6d822dc4 MS |
5048 | SV **svp; |
5049 | HE *he; | |
d30e492c VP |
5050 | bool preeminent = TRUE; |
5051 | ||
5052 | if (localizing && can_preserve) { | |
5053 | /* If we can determine whether the element exist, | |
5054 | * try to preserve the existenceness of a tied hash | |
5055 | * element by using EXISTS and DELETE if possible. | |
5056 | * Fallback to FETCH and STORE otherwise. */ | |
5057 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 5058 | } |
eb85dfd3 | 5059 | |
6d822dc4 | 5060 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 5061 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 5062 | |
6d822dc4 | 5063 | if (lval) { |
746f6409 | 5064 | if (!svp || !*svp || *svp == &PL_sv_undef) { |
be2597df | 5065 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
5066 | } |
5067 | if (localizing) { | |
6881372e | 5068 | if (HvNAME_get(hv) && isGV_or_RVCV(*svp)) |
159b6efe | 5069 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
5070 | else if (preeminent) |
5071 | save_helem_flags(hv, keysv, svp, | |
5072 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
5073 | else | |
5074 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
5075 | } |
5076 | } | |
746f6409 | 5077 | *MARK = svp && *svp ? *svp : &PL_sv_undef; |
79072805 | 5078 | } |
82334630 | 5079 | if (GIMME_V != G_ARRAY) { |
a0d0e21e | 5080 | MARK = ORIGMARK; |
04ab2c87 | 5081 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 5082 | SP = MARK; |
79072805 | 5083 | } |
a0d0e21e LW |
5084 | RETURN; |
5085 | } | |
5086 | ||
5cae3edb RZ |
5087 | PP(pp_kvhslice) |
5088 | { | |
20b7effb | 5089 | dSP; dMARK; |
5cae3edb RZ |
5090 | HV * const hv = MUTABLE_HV(POPs); |
5091 | I32 lval = (PL_op->op_flags & OPf_MOD); | |
adad97db | 5092 | SSize_t items = SP - MARK; |
5cae3edb RZ |
5093 | |
5094 | if (PL_op->op_private & OPpMAYBE_LVSUB) { | |
5095 | const I32 flags = is_lvalue_sub(); | |
5096 | if (flags) { | |
5097 | if (!(flags & OPpENTERSUB_INARGS)) | |
7aae0299 | 5098 | /* diag_listed_as: Can't modify %s in %s */ |
cc5f9b8a FC |
5099 | Perl_croak(aTHX_ "Can't modify key/value hash slice in %s assignment", |
5100 | GIMME_V == G_ARRAY ? "list" : "scalar"); | |
5cae3edb RZ |
5101 | lval = flags; |
5102 | } | |
5103 | } | |
5104 | ||
5105 | MEXTEND(SP,items); | |
5106 | while (items > 1) { | |
5107 | *(MARK+items*2-1) = *(MARK+items); | |
5108 | items--; | |
5109 | } | |
5110 | items = SP-MARK; | |
5111 | SP += items; | |
5112 | ||
5113 | while (++MARK <= SP) { | |
5114 | SV * const keysv = *MARK; | |
5115 | SV **svp; | |
5116 | HE *he; | |
5117 | ||
5118 | he = hv_fetch_ent(hv, keysv, lval, 0); | |
5119 | svp = he ? &HeVAL(he) : NULL; | |
5120 | ||
5121 | if (lval) { | |
5122 | if (!svp || !*svp || *svp == &PL_sv_undef) { | |
5123 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
5124 | } | |
5125 | *MARK = sv_mortalcopy(*MARK); | |
5126 | } | |
5127 | *++MARK = svp && *svp ? *svp : &PL_sv_undef; | |
5128 | } | |
82334630 | 5129 | if (GIMME_V != G_ARRAY) { |
5cae3edb RZ |
5130 | MARK = SP - items*2; |
5131 | *++MARK = items > 0 ? *SP : &PL_sv_undef; | |
5132 | SP = MARK; | |
5133 | } | |
5134 | RETURN; | |
5135 | } | |
5136 | ||
a0d0e21e LW |
5137 | /* List operators. */ |
5138 | ||
5139 | PP(pp_list) | |
5140 | { | |
4fa715fa | 5141 | I32 markidx = POPMARK; |
82334630 | 5142 | if (GIMME_V != G_ARRAY) { |
57bd6600 TC |
5143 | /* don't initialize mark here, EXTEND() may move the stack */ |
5144 | SV **mark; | |
4fa715fa | 5145 | dSP; |
b54564c3 | 5146 | EXTEND(SP, 1); /* in case no arguments, as in @empty */ |
57bd6600 | 5147 | mark = PL_stack_base + markidx; |
a0d0e21e LW |
5148 | if (++MARK <= SP) |
5149 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 5150 | else |
3280af22 | 5151 | *MARK = &PL_sv_undef; |
a0d0e21e | 5152 | SP = MARK; |
4fa715fa | 5153 | PUTBACK; |
79072805 | 5154 | } |
4fa715fa | 5155 | return NORMAL; |
79072805 LW |
5156 | } |
5157 | ||
a0d0e21e | 5158 | PP(pp_lslice) |
79072805 | 5159 | { |
39644a26 | 5160 | dSP; |
1b6737cc AL |
5161 | SV ** const lastrelem = PL_stack_sp; |
5162 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
5163 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
eb578fdb | 5164 | SV ** const firstrelem = lastlelem + 1; |
706a6ebc | 5165 | const U8 mod = PL_op->op_flags & OPf_MOD; |
1b6737cc | 5166 | |
eb578fdb KW |
5167 | const I32 max = lastrelem - lastlelem; |
5168 | SV **lelem; | |
a0d0e21e | 5169 | |
82334630 | 5170 | if (GIMME_V != G_ARRAY) { |
9e59c36b | 5171 | if (lastlelem < firstlelem) { |
7da51ead | 5172 | EXTEND(SP, 1); |
9e59c36b TC |
5173 | *firstlelem = &PL_sv_undef; |
5174 | } | |
5175 | else { | |
5176 | I32 ix = SvIV(*lastlelem); | |
5177 | if (ix < 0) | |
5178 | ix += max; | |
5179 | if (ix < 0 || ix >= max) | |
5180 | *firstlelem = &PL_sv_undef; | |
5181 | else | |
5182 | *firstlelem = firstrelem[ix]; | |
5183 | } | |
5184 | SP = firstlelem; | |
5185 | RETURN; | |
a0d0e21e LW |
5186 | } |
5187 | ||
5188 | if (max == 0) { | |
5189 | SP = firstlelem - 1; | |
5190 | RETURN; | |
5191 | } | |
5192 | ||
5193 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 5194 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 5195 | if (ix < 0) |
a0d0e21e | 5196 | ix += max; |
c73bf8e3 HS |
5197 | if (ix < 0 || ix >= max) |
5198 | *lelem = &PL_sv_undef; | |
5199 | else { | |
c73bf8e3 | 5200 | if (!(*lelem = firstrelem[ix])) |
3280af22 | 5201 | *lelem = &PL_sv_undef; |
60779a30 | 5202 | else if (mod && SvPADTMP(*lelem)) { |
706a6ebc | 5203 | *lelem = firstrelem[ix] = sv_mortalcopy(*lelem); |
60779a30 | 5204 | } |
748a9306 | 5205 | } |
79072805 | 5206 | } |
cbce292e | 5207 | SP = lastlelem; |
79072805 LW |
5208 | RETURN; |
5209 | } | |
5210 | ||
a0d0e21e LW |
5211 | PP(pp_anonlist) |
5212 | { | |
20b7effb | 5213 | dSP; dMARK; |
1b6737cc | 5214 | const I32 items = SP - MARK; |
ad64d0ec | 5215 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
31476221 | 5216 | SP = MARK; |
6e449a3a MHM |
5217 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
5218 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
5219 | RETURN; |
5220 | } | |
5221 | ||
5222 | PP(pp_anonhash) | |
79072805 | 5223 | { |
20b7effb | 5224 | dSP; dMARK; dORIGMARK; |
67e67fd7 | 5225 | HV* const hv = newHV(); |
8d455b9f | 5226 | SV* const retval = sv_2mortal( PL_op->op_flags & OPf_SPECIAL |
67e67fd7 | 5227 | ? newRV_noinc(MUTABLE_SV(hv)) |
8d455b9f | 5228 | : MUTABLE_SV(hv) ); |
a0d0e21e LW |
5229 | |
5230 | while (MARK < SP) { | |
3ed356df FC |
5231 | SV * const key = |
5232 | (MARK++, SvGMAGICAL(*MARK) ? sv_mortalcopy(*MARK) : *MARK); | |
5233 | SV *val; | |
a0d0e21e | 5234 | if (MARK < SP) |
3ed356df FC |
5235 | { |
5236 | MARK++; | |
5237 | SvGETMAGIC(*MARK); | |
5238 | val = newSV(0); | |
d187b712 | 5239 | sv_setsv_nomg(val, *MARK); |
3ed356df | 5240 | } |
a2a5de95 | 5241 | else |
3ed356df | 5242 | { |
a2a5de95 | 5243 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
3ed356df FC |
5244 | val = newSV(0); |
5245 | } | |
f12c7020 | 5246 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 5247 | } |
a0d0e21e | 5248 | SP = ORIGMARK; |
8d455b9f | 5249 | XPUSHs(retval); |
79072805 LW |
5250 | RETURN; |
5251 | } | |
5252 | ||
a0d0e21e | 5253 | PP(pp_splice) |
79072805 | 5254 | { |
20b7effb | 5255 | dSP; dMARK; dORIGMARK; |
5cd408a2 | 5256 | int num_args = (SP - MARK); |
00576728 | 5257 | AV *ary = MUTABLE_AV(*++MARK); |
eb578fdb KW |
5258 | SV **src; |
5259 | SV **dst; | |
c70927a6 FC |
5260 | SSize_t i; |
5261 | SSize_t offset; | |
5262 | SSize_t length; | |
5263 | SSize_t newlen; | |
5264 | SSize_t after; | |
5265 | SSize_t diff; | |
ad64d0ec | 5266 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5267 | |
1b6737cc | 5268 | if (mg) { |
3e0cb5de | 5269 | return Perl_tied_method(aTHX_ SV_CONST(SPLICE), mark - 1, MUTABLE_SV(ary), mg, |
af71faff NC |
5270 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, |
5271 | sp - mark); | |
93965878 | 5272 | } |
79072805 | 5273 | |
3275d25a AC |
5274 | if (SvREADONLY(ary)) |
5275 | Perl_croak_no_modify(); | |
5276 | ||
a0d0e21e | 5277 | SP++; |
79072805 | 5278 | |
a0d0e21e | 5279 | if (++MARK < SP) { |
4ea561bc | 5280 | offset = i = SvIV(*MARK); |
a0d0e21e | 5281 | if (offset < 0) |
93965878 | 5282 | offset += AvFILLp(ary) + 1; |
84902520 | 5283 | if (offset < 0) |
cea2e8a9 | 5284 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
5285 | if (++MARK < SP) { |
5286 | length = SvIVx(*MARK++); | |
48cdf507 GA |
5287 | if (length < 0) { |
5288 | length += AvFILLp(ary) - offset + 1; | |
5289 | if (length < 0) | |
5290 | length = 0; | |
5291 | } | |
79072805 LW |
5292 | } |
5293 | else | |
a0d0e21e | 5294 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 5295 | } |
a0d0e21e LW |
5296 | else { |
5297 | offset = 0; | |
5298 | length = AvMAX(ary) + 1; | |
5299 | } | |
8cbc2e3b | 5300 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
5301 | if (num_args > 2) |
5302 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 5303 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 5304 | } |
93965878 | 5305 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
5306 | if (after < 0) { /* not that much array */ |
5307 | length += after; /* offset+length now in array */ | |
5308 | after = 0; | |
5309 | if (!AvALLOC(ary)) | |
5310 | av_extend(ary, 0); | |
5311 | } | |
5312 | ||
5313 | /* At this point, MARK .. SP-1 is our new LIST */ | |
5314 | ||
5315 | newlen = SP - MARK; | |
5316 | diff = newlen - length; | |
13d7cbc1 GS |
5317 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
5318 | av_reify(ary); | |
a0d0e21e | 5319 | |
50528de0 WL |
5320 | /* make new elements SVs now: avoid problems if they're from the array */ |
5321 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 5322 | SV * const h = *dst; |
f2b990bf | 5323 | *dst++ = newSVsv(h); |
50528de0 WL |
5324 | } |
5325 | ||
a0d0e21e | 5326 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 5327 | SV **tmparyval = NULL; |
a0d0e21e | 5328 | if (newlen) { |
a02a5408 | 5329 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 5330 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 5331 | } |
a0d0e21e LW |
5332 | |
5333 | MARK = ORIGMARK + 1; | |
82334630 | 5334 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
31c61add | 5335 | const bool real = cBOOL(AvREAL(ary)); |
a0d0e21e | 5336 | MEXTEND(MARK, length); |
31c61add | 5337 | if (real) |
bbce6d69 | 5338 | EXTEND_MORTAL(length); |
31c61add FC |
5339 | for (i = 0, dst = MARK; i < length; i++) { |
5340 | if ((*dst = AvARRAY(ary)[i+offset])) { | |
5341 | if (real) | |
486ec47a | 5342 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5343 | } |
31c61add FC |
5344 | else |
5345 | *dst = &PL_sv_undef; | |
5346 | dst++; | |
a0d0e21e LW |
5347 | } |
5348 | MARK += length - 1; | |
79072805 | 5349 | } |
a0d0e21e LW |
5350 | else { |
5351 | *MARK = AvARRAY(ary)[offset+length-1]; | |
5352 | if (AvREAL(ary)) { | |
d689ffdd | 5353 | sv_2mortal(*MARK); |
a0d0e21e LW |
5354 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
5355 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 5356 | } |
92b69f65 FC |
5357 | if (!*MARK) |
5358 | *MARK = &PL_sv_undef; | |
a0d0e21e | 5359 | } |
93965878 | 5360 | AvFILLp(ary) += diff; |
a0d0e21e LW |
5361 | |
5362 | /* pull up or down? */ | |
5363 | ||
5364 | if (offset < after) { /* easier to pull up */ | |
5365 | if (offset) { /* esp. if nothing to pull */ | |
5366 | src = &AvARRAY(ary)[offset-1]; | |
5367 | dst = src - diff; /* diff is negative */ | |
5368 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
5369 | *dst-- = *src--; | |
79072805 | 5370 | } |
a0d0e21e | 5371 | dst = AvARRAY(ary); |
9c6bc640 | 5372 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5373 | AvMAX(ary) += diff; |
5374 | } | |
5375 | else { | |
5376 | if (after) { /* anything to pull down? */ | |
5377 | src = AvARRAY(ary) + offset + length; | |
5378 | dst = src + diff; /* diff is negative */ | |
5379 | Move(src, dst, after, SV*); | |
79072805 | 5380 | } |
93965878 | 5381 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5382 | /* avoid later double free */ |
5383 | } | |
5384 | i = -diff; | |
5385 | while (i) | |
ce0d59fd | 5386 | dst[--i] = NULL; |
a0d0e21e LW |
5387 | |
5388 | if (newlen) { | |
50528de0 | 5389 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5390 | Safefree(tmparyval); |
5391 | } | |
5392 | } | |
5393 | else { /* no, expanding (or same) */ | |
d3961450 | 5394 | SV** tmparyval = NULL; |
a0d0e21e | 5395 | if (length) { |
a02a5408 | 5396 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5397 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5398 | } | |
5399 | ||
5400 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5401 | /* push up or down? */ |
a0d0e21e LW |
5402 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5403 | if (offset) { | |
5404 | src = AvARRAY(ary); | |
5405 | dst = src - diff; | |
5406 | Move(src, dst, offset, SV*); | |
79072805 | 5407 | } |
9c6bc640 | 5408 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5409 | AvMAX(ary) += diff; |
93965878 | 5410 | AvFILLp(ary) += diff; |
79072805 LW |
5411 | } |
5412 | else { | |
93965878 NIS |
5413 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5414 | av_extend(ary, AvFILLp(ary) + diff); | |
5415 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5416 | |
5417 | if (after) { | |
93965878 | 5418 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5419 | src = dst - diff; |
5420 | for (i = after; i; i--) { | |
5421 | *dst-- = *src--; | |
5422 | } | |
79072805 LW |
5423 | } |
5424 | } | |
a0d0e21e LW |
5425 | } |
5426 | ||
50528de0 WL |
5427 | if (newlen) { |
5428 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5429 | } |
50528de0 | 5430 | |
a0d0e21e | 5431 | MARK = ORIGMARK + 1; |
82334630 | 5432 | if (GIMME_V == G_ARRAY) { /* copy return vals to stack */ |
a0d0e21e | 5433 | if (length) { |
31c61add FC |
5434 | const bool real = cBOOL(AvREAL(ary)); |
5435 | if (real) | |
bbce6d69 | 5436 | EXTEND_MORTAL(length); |
31c61add FC |
5437 | for (i = 0, dst = MARK; i < length; i++) { |
5438 | if ((*dst = tmparyval[i])) { | |
5439 | if (real) | |
486ec47a | 5440 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5441 | } |
31c61add FC |
5442 | else *dst = &PL_sv_undef; |
5443 | dst++; | |
79072805 LW |
5444 | } |
5445 | } | |
a0d0e21e LW |
5446 | MARK += length - 1; |
5447 | } | |
5448 | else if (length--) { | |
5449 | *MARK = tmparyval[length]; | |
5450 | if (AvREAL(ary)) { | |
d689ffdd | 5451 | sv_2mortal(*MARK); |
a0d0e21e LW |
5452 | while (length-- > 0) |
5453 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5454 | } |
92b69f65 FC |
5455 | if (!*MARK) |
5456 | *MARK = &PL_sv_undef; | |
79072805 | 5457 | } |
a0d0e21e | 5458 | else |
3280af22 | 5459 | *MARK = &PL_sv_undef; |
d3961450 | 5460 | Safefree(tmparyval); |
79072805 | 5461 | } |
474af990 FR |
5462 | |
5463 | if (SvMAGICAL(ary)) | |
5464 | mg_set(MUTABLE_SV(ary)); | |
5465 | ||
a0d0e21e | 5466 | SP = MARK; |
79072805 LW |
5467 | RETURN; |
5468 | } | |
5469 | ||
a0d0e21e | 5470 | PP(pp_push) |
79072805 | 5471 | { |
20b7effb | 5472 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5473 | AV * const ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5474 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5475 | |
1b6737cc | 5476 | if (mg) { |
ad64d0ec | 5477 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5478 | PUSHMARK(MARK); |
5479 | PUTBACK; | |
d343c3ef | 5480 | ENTER_with_name("call_PUSH"); |
3e0cb5de | 5481 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5482 | LEAVE_with_name("call_PUSH"); |
01072573 | 5483 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5484 | } |
a60c0954 | 5485 | else { |
a68090fe DM |
5486 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5487 | * only need to save locally, not on the save stack */ | |
5488 | U16 old_delaymagic = PL_delaymagic; | |
5489 | ||
cb077ed2 | 5490 | if (SvREADONLY(ary) && MARK < SP) Perl_croak_no_modify(); |
89c14e2e | 5491 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5492 | for (++MARK; MARK <= SP; MARK++) { |
3ed356df FC |
5493 | SV *sv; |
5494 | if (*MARK) SvGETMAGIC(*MARK); | |
5495 | sv = newSV(0); | |
a60c0954 | 5496 | if (*MARK) |
3ed356df | 5497 | sv_setsv_nomg(sv, *MARK); |
0a75904b | 5498 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5499 | } |
354b0578 | 5500 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5501 | mg_set(MUTABLE_SV(ary)); |
a68090fe | 5502 | PL_delaymagic = old_delaymagic; |
6eeabd23 VP |
5503 | } |
5504 | SP = ORIGMARK; | |
5505 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5506 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5507 | } |
79072805 LW |
5508 | RETURN; |
5509 | } | |
5510 | ||
b1c05ba5 | 5511 | /* also used for: pp_pop()*/ |
a0d0e21e | 5512 | PP(pp_shift) |
79072805 | 5513 | { |
39644a26 | 5514 | dSP; |
538f5756 | 5515 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
94f9945d | 5516 | ? MUTABLE_AV(GvAVn(PL_defgv)) : MUTABLE_AV(POPs); |
789b4bc9 | 5517 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5518 | EXTEND(SP, 1); |
c2b4a044 | 5519 | assert (sv); |
d689ffdd | 5520 | if (AvREAL(av)) |
a0d0e21e LW |
5521 | (void)sv_2mortal(sv); |
5522 | PUSHs(sv); | |
79072805 | 5523 | RETURN; |
79072805 LW |
5524 | } |
5525 | ||
a0d0e21e | 5526 | PP(pp_unshift) |
79072805 | 5527 | { |
20b7effb | 5528 | dSP; dMARK; dORIGMARK; dTARGET; |
00576728 | 5529 | AV *ary = MUTABLE_AV(*++MARK); |
ad64d0ec | 5530 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5531 | |
1b6737cc | 5532 | if (mg) { |
ad64d0ec | 5533 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5534 | PUSHMARK(MARK); |
93965878 | 5535 | PUTBACK; |
d343c3ef | 5536 | ENTER_with_name("call_UNSHIFT"); |
36925d9e | 5537 | call_sv(SV_CONST(UNSHIFT),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5538 | LEAVE_with_name("call_UNSHIFT"); |
01072573 | 5539 | /* SPAGAIN; not needed: SP is assigned to immediately below */ |
93965878 | 5540 | } |
a60c0954 | 5541 | else { |
a68090fe DM |
5542 | /* PL_delaymagic is restored by JUMPENV_POP on dieing, so we |
5543 | * only need to save locally, not on the save stack */ | |
5544 | U16 old_delaymagic = PL_delaymagic; | |
c70927a6 | 5545 | SSize_t i = 0; |
a68090fe | 5546 | |
a60c0954 | 5547 | av_unshift(ary, SP - MARK); |
39539141 | 5548 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5549 | while (MARK < SP) { |
1b6737cc | 5550 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5551 | (void)av_store(ary, i++, sv); |
5552 | } | |
39539141 DIM |
5553 | if (PL_delaymagic & DM_ARRAY_ISA) |
5554 | mg_set(MUTABLE_SV(ary)); | |
a68090fe | 5555 | PL_delaymagic = old_delaymagic; |
79072805 | 5556 | } |
a0d0e21e | 5557 | SP = ORIGMARK; |
6eeabd23 | 5558 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5559 | PUSHi( AvFILL(ary) + 1 ); |
5560 | } | |
79072805 | 5561 | RETURN; |
79072805 LW |
5562 | } |
5563 | ||
a0d0e21e | 5564 | PP(pp_reverse) |
79072805 | 5565 | { |
20b7effb | 5566 | dSP; dMARK; |
79072805 | 5567 | |
82334630 | 5568 | if (GIMME_V == G_ARRAY) { |
484c818f VP |
5569 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5570 | AV *av; | |
5571 | ||
5572 | /* See pp_sort() */ | |
5573 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5574 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5575 | av = MUTABLE_AV((*SP)); | |
5576 | /* In-place reversing only happens in void context for the array | |
5577 | * assignment. We don't need to push anything on the stack. */ | |
5578 | SP = MARK; | |
5579 | ||
5580 | if (SvMAGICAL(av)) { | |
c70927a6 | 5581 | SSize_t i, j; |
eb578fdb | 5582 | SV *tmp = sv_newmortal(); |
484c818f VP |
5583 | /* For SvCANEXISTDELETE */ |
5584 | HV *stash; | |
5585 | const MAGIC *mg; | |
5586 | bool can_preserve = SvCANEXISTDELETE(av); | |
5587 | ||
b9f2b683 | 5588 | for (i = 0, j = av_tindex(av); i < j; ++i, --j) { |
eb578fdb | 5589 | SV *begin, *end; |
484c818f VP |
5590 | |
5591 | if (can_preserve) { | |
5592 | if (!av_exists(av, i)) { | |
5593 | if (av_exists(av, j)) { | |
eb578fdb | 5594 | SV *sv = av_delete(av, j, 0); |
484c818f VP |
5595 | begin = *av_fetch(av, i, TRUE); |
5596 | sv_setsv_mg(begin, sv); | |
5597 | } | |
5598 | continue; | |
5599 | } | |
5600 | else if (!av_exists(av, j)) { | |
eb578fdb | 5601 | SV *sv = av_delete(av, i, 0); |
484c818f VP |
5602 | end = *av_fetch(av, j, TRUE); |
5603 | sv_setsv_mg(end, sv); | |
5604 | continue; | |
5605 | } | |
5606 | } | |
5607 | ||
5608 | begin = *av_fetch(av, i, TRUE); | |
5609 | end = *av_fetch(av, j, TRUE); | |
5610 | sv_setsv(tmp, begin); | |
5611 | sv_setsv_mg(begin, end); | |
5612 | sv_setsv_mg(end, tmp); | |
5613 | } | |
5614 | } | |
5615 | else { | |
5616 | SV **begin = AvARRAY(av); | |
484c818f | 5617 | |
95a26d8e VP |
5618 | if (begin) { |
5619 | SV **end = begin + AvFILLp(av); | |
5620 | ||
5621 | while (begin < end) { | |
eb578fdb | 5622 | SV * const tmp = *begin; |
95a26d8e VP |
5623 | *begin++ = *end; |
5624 | *end-- = tmp; | |
5625 | } | |
484c818f VP |
5626 | } |
5627 | } | |
5628 | } | |
5629 | else { | |
5630 | SV **oldsp = SP; | |
5631 | MARK++; | |
5632 | while (MARK < SP) { | |
eb578fdb | 5633 | SV * const tmp = *MARK; |
484c818f VP |
5634 | *MARK++ = *SP; |
5635 | *SP-- = tmp; | |
5636 | } | |
5637 | /* safe as long as stack cannot get extended in the above */ | |
5638 | SP = oldsp; | |
a0d0e21e | 5639 | } |
79072805 LW |
5640 | } |
5641 | else { | |
eb578fdb | 5642 | char *up; |
a0d0e21e LW |
5643 | dTARGET; |
5644 | STRLEN len; | |
79072805 | 5645 | |
7e2040f0 | 5646 | SvUTF8_off(TARG); /* decontaminate */ |
47836a13 | 5647 | if (SP - MARK > 1) { |
3280af22 | 5648 | do_join(TARG, &PL_sv_no, MARK, SP); |
47836a13 Z |
5649 | SP = MARK + 1; |
5650 | SETs(TARG); | |
5651 | } else if (SP > MARK) { | |
d5d91c1e | 5652 | sv_setsv(TARG, *SP); |
47836a13 Z |
5653 | SETs(TARG); |
5654 | } else { | |
d5d91c1e | 5655 | sv_setsv(TARG, DEFSV); |
47836a13 | 5656 | XPUSHs(TARG); |
1e21d011 B |
5657 | } |
5658 | ||
a0d0e21e LW |
5659 | up = SvPV_force(TARG, len); |
5660 | if (len > 1) { | |
19742f39 | 5661 | char *down; |
7e2040f0 | 5662 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5663 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5664 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5665 | while (s < send) { |
d742c382 | 5666 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5667 | s++; |
5668 | continue; | |
5669 | } | |
5670 | else { | |
4b88fb76 | 5671 | if (!utf8_to_uvchr_buf(s, send, 0)) |
a0dbb045 | 5672 | break; |
dfe13c55 | 5673 | up = (char*)s; |
a0ed51b3 | 5674 | s += UTF8SKIP(s); |
dfe13c55 | 5675 | down = (char*)(s - 1); |
a0dbb045 | 5676 | /* reverse this character */ |
a0ed51b3 | 5677 | while (down > up) { |
19742f39 | 5678 | const char tmp = *up; |
a0ed51b3 | 5679 | *up++ = *down; |
19742f39 | 5680 | *down-- = tmp; |
a0ed51b3 LW |
5681 | } |
5682 | } | |
5683 | } | |
5684 | up = SvPVX(TARG); | |
5685 | } | |
a0d0e21e LW |
5686 | down = SvPVX(TARG) + len - 1; |
5687 | while (down > up) { | |
19742f39 | 5688 | const char tmp = *up; |
a0d0e21e | 5689 | *up++ = *down; |
19742f39 | 5690 | *down-- = tmp; |
a0d0e21e | 5691 | } |
3aa33fe5 | 5692 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5693 | } |
79072805 | 5694 | } |
a0d0e21e | 5695 | RETURN; |
79072805 LW |
5696 | } |
5697 | ||
a0d0e21e | 5698 | PP(pp_split) |
79072805 | 5699 | { |
20b7effb | 5700 | dSP; dTARG; |
692044df DM |
5701 | AV *ary = ( (PL_op->op_private & OPpSPLIT_ASSIGN) /* @a = split */ |
5702 | && (PL_op->op_flags & OPf_STACKED)) /* @{expr} = split */ | |
5012eebe | 5703 | ? (AV *)POPs : NULL; |
eb578fdb | 5704 | IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5705 | SV * const sv = POPs; |
a0d0e21e | 5706 | STRLEN len; |
eb578fdb | 5707 | const char *s = SvPV_const(sv, len); |
1b6737cc | 5708 | const bool do_utf8 = DO_UTF8(sv); |
20ae58f7 | 5709 | const bool in_uni_8_bit = IN_UNI_8_BIT; |
727b7506 | 5710 | const char *strend = s + len; |
5012eebe | 5711 | PMOP *pm = cPMOPx(PL_op); |
eb578fdb KW |
5712 | REGEXP *rx; |
5713 | SV *dstr; | |
5714 | const char *m; | |
c70927a6 | 5715 | SSize_t iters = 0; |
d14578b8 KW |
5716 | const STRLEN slen = do_utf8 |
5717 | ? utf8_length((U8*)s, (U8*)strend) | |
5718 | : (STRLEN)(strend - s); | |
c70927a6 | 5719 | SSize_t maxiters = slen + 10; |
c1a7495a | 5720 | I32 trailing_empty = 0; |
727b7506 | 5721 | const char *orig; |
052a7c76 | 5722 | const IV origlimit = limit; |
a0d0e21e LW |
5723 | I32 realarray = 0; |
5724 | I32 base; | |
1c23e2bd | 5725 | const U8 gimme = GIMME_V; |
941446f6 | 5726 | bool gimme_scalar; |
692044df | 5727 | I32 oldsave = PL_savestack_ix; |
437d3b4e | 5728 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5729 | bool multiline = 0; |
b37c2d43 | 5730 | MAGIC *mg = NULL; |
79072805 | 5731 | |
aaa362c4 | 5732 | rx = PM_GETRE(pm); |
bbce6d69 | 5733 | |
a62b1201 | 5734 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
dbc200c5 | 5735 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5736 | |
692044df | 5737 | /* handle @ary = split(...) optimisation */ |
5012eebe DM |
5738 | if (PL_op->op_private & OPpSPLIT_ASSIGN) { |
5739 | if (!(PL_op->op_flags & OPf_STACKED)) { | |
692044df DM |
5740 | if (PL_op->op_private & OPpSPLIT_LEX) { |
5741 | if (PL_op->op_private & OPpLVAL_INTRO) | |
5742 | SAVECLEARSV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); | |
5012eebe | 5743 | ary = (AV *)PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff); |
692044df | 5744 | } |
5012eebe DM |
5745 | else { |
5746 | GV *gv = | |
971a9dd3 | 5747 | #ifdef USE_ITHREADS |
5012eebe | 5748 | MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff)); |
971a9dd3 | 5749 | #else |
5012eebe | 5750 | pm->op_pmreplrootu.op_pmtargetgv; |
20e98b0f | 5751 | #endif |
692044df DM |
5752 | if (PL_op->op_private & OPpLVAL_INTRO) |
5753 | ary = save_ary(gv); | |
5754 | else | |
5755 | ary = GvAVn(gv); | |
5012eebe | 5756 | } |
692044df DM |
5757 | /* skip anything pushed by OPpLVAL_INTRO above */ |
5758 | oldsave = PL_savestack_ix; | |
5012eebe DM |
5759 | } |
5760 | ||
a0d0e21e | 5761 | realarray = 1; |
8ec5e241 | 5762 | PUTBACK; |
a0d0e21e | 5763 | av_extend(ary,0); |
821956c5 | 5764 | (void)sv_2mortal(SvREFCNT_inc_simple_NN(sv)); |
a0d0e21e | 5765 | av_clear(ary); |
8ec5e241 | 5766 | SPAGAIN; |
ad64d0ec | 5767 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5768 | PUSHMARK(SP); |
ad64d0ec | 5769 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5770 | } |
5771 | else { | |
1c0b011c | 5772 | if (!AvREAL(ary)) { |
1b6737cc | 5773 | I32 i; |
1c0b011c | 5774 | AvREAL_on(ary); |
abff13bb | 5775 | AvREIFY_off(ary); |
1c0b011c | 5776 | for (i = AvFILLp(ary); i >= 0; i--) |
d14578b8 | 5777 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5778 | } |
5779 | /* temporarily switch stacks */ | |
8b7059b1 | 5780 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5781 | make_mortal = 0; |
1c0b011c | 5782 | } |
79072805 | 5783 | } |
5012eebe | 5784 | |
3280af22 | 5785 | base = SP - PL_stack_base; |
a0d0e21e | 5786 | orig = s; |
dbc200c5 | 5787 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e | 5788 | if (do_utf8) { |
d720149d | 5789 | while (s < strend && isSPACE_utf8_safe(s, strend)) |
613f191e TS |
5790 | s += UTF8SKIP(s); |
5791 | } | |
a62b1201 | 5792 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
d720149d | 5793 | while (s < strend && isSPACE_LC(*s)) |
bbce6d69 | 5794 | s++; |
5795 | } | |
20ae58f7 AC |
5796 | else if (in_uni_8_bit) { |
5797 | while (s < strend && isSPACE_L1(*s)) | |
5798 | s++; | |
5799 | } | |
bbce6d69 | 5800 | else { |
d720149d | 5801 | while (s < strend && isSPACE(*s)) |
bbce6d69 | 5802 | s++; |
5803 | } | |
a0d0e21e | 5804 | } |
73134a2e | 5805 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5806 | multiline = 1; |
c07a80fd | 5807 | } |
5808 | ||
941446f6 FC |
5809 | gimme_scalar = gimme == G_SCALAR && !ary; |
5810 | ||
a0d0e21e LW |
5811 | if (!limit) |
5812 | limit = maxiters + 2; | |
dbc200c5 | 5813 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5814 | while (--limit) { |
bbce6d69 | 5815 | m = s; |
8727f688 YO |
5816 | /* this one uses 'm' and is a negative test */ |
5817 | if (do_utf8) { | |
7a207065 | 5818 | while (m < strend && ! isSPACE_utf8_safe(m, strend) ) { |
613f191e | 5819 | const int t = UTF8SKIP(m); |
7a207065 | 5820 | /* isSPACE_utf8_safe returns FALSE for malform utf8 */ |
613f191e TS |
5821 | if (strend - m < t) |
5822 | m = strend; | |
5823 | else | |
5824 | m += t; | |
5825 | } | |
a62b1201 | 5826 | } |
d14578b8 KW |
5827 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5828 | { | |
8727f688 YO |
5829 | while (m < strend && !isSPACE_LC(*m)) |
5830 | ++m; | |
20ae58f7 AC |
5831 | } |
5832 | else if (in_uni_8_bit) { | |
5833 | while (m < strend && !isSPACE_L1(*m)) | |
5834 | ++m; | |
8727f688 YO |
5835 | } else { |
5836 | while (m < strend && !isSPACE(*m)) | |
5837 | ++m; | |
5838 | } | |
a0d0e21e LW |
5839 | if (m >= strend) |
5840 | break; | |
bbce6d69 | 5841 | |
c1a7495a BB |
5842 | if (gimme_scalar) { |
5843 | iters++; | |
5844 | if (m-s == 0) | |
5845 | trailing_empty++; | |
5846 | else | |
5847 | trailing_empty = 0; | |
5848 | } else { | |
5849 | dstr = newSVpvn_flags(s, m-s, | |
5850 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5851 | XPUSHs(dstr); | |
5852 | } | |
bbce6d69 | 5853 | |
613f191e TS |
5854 | /* skip the whitespace found last */ |
5855 | if (do_utf8) | |
5856 | s = m + UTF8SKIP(m); | |
5857 | else | |
5858 | s = m + 1; | |
5859 | ||
8727f688 YO |
5860 | /* this one uses 's' and is a positive test */ |
5861 | if (do_utf8) { | |
7a207065 | 5862 | while (s < strend && isSPACE_utf8_safe(s, strend) ) |
8727f688 | 5863 | s += UTF8SKIP(s); |
a62b1201 | 5864 | } |
d14578b8 KW |
5865 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5866 | { | |
8727f688 YO |
5867 | while (s < strend && isSPACE_LC(*s)) |
5868 | ++s; | |
20ae58f7 AC |
5869 | } |
5870 | else if (in_uni_8_bit) { | |
5871 | while (s < strend && isSPACE_L1(*s)) | |
5872 | ++s; | |
8727f688 YO |
5873 | } else { |
5874 | while (s < strend && isSPACE(*s)) | |
5875 | ++s; | |
5876 | } | |
79072805 LW |
5877 | } |
5878 | } | |
07bc277f | 5879 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5880 | while (--limit) { |
a6e20a40 AL |
5881 | for (m = s; m < strend && *m != '\n'; m++) |
5882 | ; | |
a0d0e21e LW |
5883 | m++; |
5884 | if (m >= strend) | |
5885 | break; | |
c1a7495a BB |
5886 | |
5887 | if (gimme_scalar) { | |
5888 | iters++; | |
5889 | if (m-s == 0) | |
5890 | trailing_empty++; | |
5891 | else | |
5892 | trailing_empty = 0; | |
5893 | } else { | |
5894 | dstr = newSVpvn_flags(s, m-s, | |
5895 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5896 | XPUSHs(dstr); | |
5897 | } | |
a0d0e21e LW |
5898 | s = m; |
5899 | } | |
5900 | } | |
07bc277f | 5901 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5902 | /* |
5903 | Pre-extend the stack, either the number of bytes or | |
5904 | characters in the string or a limited amount, triggered by: | |
5905 | ||
5906 | my ($x, $y) = split //, $str; | |
5907 | or | |
5908 | split //, $str, $i; | |
5909 | */ | |
c1a7495a | 5910 | if (!gimme_scalar) { |
052a7c76 DM |
5911 | const IV items = limit - 1; |
5912 | /* setting it to -1 will trigger a panic in EXTEND() */ | |
5913 | const SSize_t sslen = slen > SSize_t_MAX ? -1 : (SSize_t)slen; | |
5914 | if (items >=0 && items < sslen) | |
c1a7495a BB |
5915 | EXTEND(SP, items); |
5916 | else | |
052a7c76 | 5917 | EXTEND(SP, sslen); |
c1a7495a | 5918 | } |
640f820d | 5919 | |
e9515b0f AB |
5920 | if (do_utf8) { |
5921 | while (--limit) { | |
5922 | /* keep track of how many bytes we skip over */ | |
5923 | m = s; | |
640f820d | 5924 | s += UTF8SKIP(s); |
c1a7495a BB |
5925 | if (gimme_scalar) { |
5926 | iters++; | |
5927 | if (s-m == 0) | |
5928 | trailing_empty++; | |
5929 | else | |
5930 | trailing_empty = 0; | |
5931 | } else { | |
5932 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5933 | |
c1a7495a BB |
5934 | PUSHs(dstr); |
5935 | } | |
640f820d | 5936 | |
e9515b0f AB |
5937 | if (s >= strend) |
5938 | break; | |
5939 | } | |
5940 | } else { | |
5941 | while (--limit) { | |
c1a7495a BB |
5942 | if (gimme_scalar) { |
5943 | iters++; | |
5944 | } else { | |
5945 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5946 | |
e9515b0f | 5947 | |
c1a7495a BB |
5948 | if (make_mortal) |
5949 | sv_2mortal(dstr); | |
640f820d | 5950 | |
c1a7495a BB |
5951 | PUSHs(dstr); |
5952 | } | |
5953 | ||
5954 | s++; | |
e9515b0f AB |
5955 | |
5956 | if (s >= strend) | |
5957 | break; | |
5958 | } | |
640f820d AB |
5959 | } |
5960 | } | |
3c8556c3 | 5961 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5962 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5963 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
8e1490ee | 5964 | && !(RX_EXTFLAGS(rx) & RXf_IS_ANCHORED)) { |
07bc277f | 5965 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); |
f9f4320a | 5966 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5967 | |
07bc277f | 5968 | len = RX_MINLENRET(rx); |
3c8556c3 | 5969 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5970 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5971 | while (--limit) { |
a6e20a40 AL |
5972 | for (m = s; m < strend && *m != c; m++) |
5973 | ; | |
a0d0e21e LW |
5974 | if (m >= strend) |
5975 | break; | |
c1a7495a BB |
5976 | if (gimme_scalar) { |
5977 | iters++; | |
5978 | if (m-s == 0) | |
5979 | trailing_empty++; | |
5980 | else | |
5981 | trailing_empty = 0; | |
5982 | } else { | |
5983 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5984 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5985 | XPUSHs(dstr); |
5986 | } | |
93f04dac JH |
5987 | /* The rx->minlen is in characters but we want to step |
5988 | * s ahead by bytes. */ | |
1aa99e6b IH |
5989 | if (do_utf8) |
5990 | s = (char*)utf8_hop((U8*)m, len); | |
5991 | else | |
5992 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5993 | } |
5994 | } | |
5995 | else { | |
a0d0e21e | 5996 | while (s < strend && --limit && |
f722798b | 5997 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5998 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5999 | { |
c1a7495a BB |
6000 | if (gimme_scalar) { |
6001 | iters++; | |
6002 | if (m-s == 0) | |
6003 | trailing_empty++; | |
6004 | else | |
6005 | trailing_empty = 0; | |
6006 | } else { | |
6007 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 6008 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
6009 | XPUSHs(dstr); |
6010 | } | |
93f04dac JH |
6011 | /* The rx->minlen is in characters but we want to step |
6012 | * s ahead by bytes. */ | |
1aa99e6b IH |
6013 | if (do_utf8) |
6014 | s = (char*)utf8_hop((U8*)m, len); | |
6015 | else | |
6016 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 6017 | } |
463ee0b2 | 6018 | } |
463ee0b2 | 6019 | } |
a0d0e21e | 6020 | else { |
07bc277f | 6021 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 6022 | while (s < strend && --limit) |
bbce6d69 | 6023 | { |
1b6737cc | 6024 | I32 rex_return; |
080c2dec | 6025 | PUTBACK; |
d14578b8 | 6026 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1, |
c33e64f0 | 6027 | sv, NULL, 0); |
080c2dec | 6028 | SPAGAIN; |
1b6737cc | 6029 | if (rex_return == 0) |
080c2dec | 6030 | break; |
d9f97599 | 6031 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
6502e081 DM |
6032 | /* we never pass the REXEC_COPY_STR flag, so it should |
6033 | * never get copied */ | |
6034 | assert(!RX_MATCH_COPIED(rx)); | |
07bc277f | 6035 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
6036 | |
6037 | if (gimme_scalar) { | |
6038 | iters++; | |
6039 | if (m-s == 0) | |
6040 | trailing_empty++; | |
6041 | else | |
6042 | trailing_empty = 0; | |
6043 | } else { | |
6044 | dstr = newSVpvn_flags(s, m-s, | |
6045 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6046 | XPUSHs(dstr); | |
6047 | } | |
07bc277f | 6048 | if (RX_NPARENS(rx)) { |
1b6737cc | 6049 | I32 i; |
07bc277f NC |
6050 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
6051 | s = RX_OFFS(rx)[i].start + orig; | |
6052 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
6053 | |
6054 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
6055 | parens that didn't match -- they should be set to | |
6056 | undef, not the empty string */ | |
c1a7495a BB |
6057 | if (gimme_scalar) { |
6058 | iters++; | |
6059 | if (m-s == 0) | |
6060 | trailing_empty++; | |
6061 | else | |
6062 | trailing_empty = 0; | |
6063 | } else { | |
6064 | if (m >= orig && s >= orig) { | |
6065 | dstr = newSVpvn_flags(s, m-s, | |
6066 | (do_utf8 ? SVf_UTF8 : 0) | |
6067 | | make_mortal); | |
6068 | } | |
6069 | else | |
6070 | dstr = &PL_sv_undef; /* undef, not "" */ | |
6071 | XPUSHs(dstr); | |
748a9306 | 6072 | } |
c1a7495a | 6073 | |
a0d0e21e LW |
6074 | } |
6075 | } | |
07bc277f | 6076 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 6077 | } |
79072805 | 6078 | } |
8ec5e241 | 6079 | |
c1a7495a BB |
6080 | if (!gimme_scalar) { |
6081 | iters = (SP - PL_stack_base) - base; | |
6082 | } | |
a0d0e21e | 6083 | if (iters > maxiters) |
cea2e8a9 | 6084 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 6085 | |
a0d0e21e LW |
6086 | /* keep field after final delim? */ |
6087 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
6088 | if (!gimme_scalar) { |
6089 | const STRLEN l = strend - s; | |
6090 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
6091 | XPUSHs(dstr); | |
6092 | } | |
a0d0e21e | 6093 | iters++; |
79072805 | 6094 | } |
a0d0e21e | 6095 | else if (!origlimit) { |
c1a7495a BB |
6096 | if (gimme_scalar) { |
6097 | iters -= trailing_empty; | |
6098 | } else { | |
6099 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
6100 | if (TOPs && !make_mortal) | |
6101 | sv_2mortal(TOPs); | |
71ca73e5 | 6102 | *SP-- = NULL; |
c1a7495a BB |
6103 | iters--; |
6104 | } | |
89900bd3 | 6105 | } |
a0d0e21e | 6106 | } |
8ec5e241 | 6107 | |
8b7059b1 DM |
6108 | PUTBACK; |
6109 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
6110 | SPAGAIN; | |
a0d0e21e | 6111 | if (realarray) { |
8ec5e241 | 6112 | if (!mg) { |
1c0b011c NIS |
6113 | if (SvSMAGICAL(ary)) { |
6114 | PUTBACK; | |
ad64d0ec | 6115 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
6116 | SPAGAIN; |
6117 | } | |
6118 | if (gimme == G_ARRAY) { | |
6119 | EXTEND(SP, iters); | |
6120 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
6121 | SP += iters; | |
6122 | RETURN; | |
6123 | } | |
8ec5e241 | 6124 | } |
1c0b011c | 6125 | else { |
fb73857a | 6126 | PUTBACK; |
d343c3ef | 6127 | ENTER_with_name("call_PUSH"); |
36925d9e | 6128 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 6129 | LEAVE_with_name("call_PUSH"); |
fb73857a | 6130 | SPAGAIN; |
8ec5e241 | 6131 | if (gimme == G_ARRAY) { |
c70927a6 | 6132 | SSize_t i; |
8ec5e241 NIS |
6133 | /* EXTEND should not be needed - we just popped them */ |
6134 | EXTEND(SP, iters); | |
6135 | for (i=0; i < iters; i++) { | |
6136 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 6137 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 6138 | } |
1c0b011c NIS |
6139 | RETURN; |
6140 | } | |
a0d0e21e LW |
6141 | } |
6142 | } | |
6143 | else { | |
6144 | if (gimme == G_ARRAY) | |
6145 | RETURN; | |
6146 | } | |
7f18b612 YST |
6147 | |
6148 | GETTARGET; | |
02c161ef | 6149 | XPUSHi(iters); |
7f18b612 | 6150 | RETURN; |
79072805 | 6151 | } |
85e6fe83 | 6152 | |
c5917253 NC |
6153 | PP(pp_once) |
6154 | { | |
6155 | dSP; | |
6156 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
6157 | ||
6158 | if (SvPADSTALE(sv)) { | |
6159 | /* First time. */ | |
6160 | SvPADSTALE_off(sv); | |
6161 | RETURNOP(cLOGOP->op_other); | |
6162 | } | |
6163 | RETURNOP(cLOGOP->op_next); | |
6164 | } | |
6165 | ||
c0329465 MB |
6166 | PP(pp_lock) |
6167 | { | |
39644a26 | 6168 | dSP; |
c0329465 | 6169 | dTOPss; |
e55aaa0e | 6170 | SV *retsv = sv; |
68795e93 | 6171 | SvLOCK(sv); |
f79aa60b FC |
6172 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
6173 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
6174 | retsv = refto(retsv); |
6175 | } | |
6176 | SETs(retsv); | |
c0329465 MB |
6177 | RETURN; |
6178 | } | |
a863c7d1 | 6179 | |
65bca31a | 6180 | |
10088f56 | 6181 | /* used for: pp_padany(), pp_custom(); plus any system ops |
b1c05ba5 DM |
6182 | * that aren't implemented on a particular platform */ |
6183 | ||
65bca31a NC |
6184 | PP(unimplemented_op) |
6185 | { | |
361ed549 NC |
6186 | const Optype op_type = PL_op->op_type; |
6187 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
6188 | with out of range op numbers - it only "special" cases op_custom. | |
6189 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
6190 | if we get here for a custom op then that means that the custom op didn't | |
6191 | have an implementation. Given that OP_NAME() looks up the custom op | |
6192 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
6193 | registers &PL_unimplemented_op as the address of their custom op. | |
6194 | NULL doesn't generate a useful error message. "custom" does. */ | |
6195 | const char *const name = op_type >= OP_max | |
6196 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
6197 | if(OP_IS_SOCKET(op_type)) |
6198 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 6199 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
6200 | } |
6201 | ||
bea284c8 FC |
6202 | static void |
6203 | S_maybe_unwind_defav(pTHX) | |
6204 | { | |
6205 | if (CX_CUR()->cx_type & CXp_HASARGS) { | |
6206 | PERL_CONTEXT *cx = CX_CUR(); | |
6207 | ||
6208 | assert(CxHASARGS(cx)); | |
6209 | cx_popsub_args(cx); | |
6210 | cx->cx_type &= ~CXp_HASARGS; | |
6211 | } | |
6212 | } | |
6213 | ||
deb8a388 FC |
6214 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
6215 | PP(pp_coreargs) | |
6216 | { | |
6217 | dSP; | |
7fa5bd9b | 6218 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
498a02d8 | 6219 | int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0; |
7fa5bd9b | 6220 | AV * const at_ = GvAV(PL_defgv); |
0e80230d FC |
6221 | SV **svp = at_ ? AvARRAY(at_) : NULL; |
6222 | I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0; | |
7fa5bd9b | 6223 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 6224 | bool seen_question = 0; |
7fa5bd9b | 6225 | const char *err = NULL; |
3e6568b4 | 6226 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 6227 | |
46e00a91 FC |
6228 | /* Count how many args there are first, to get some idea how far to |
6229 | extend the stack. */ | |
7fa5bd9b | 6230 | while (oa) { |
bf0571fd | 6231 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 6232 | maxargs++; |
46e00a91 FC |
6233 | if (oa & OA_OPTIONAL) seen_question = 1; |
6234 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
6235 | oa >>= 4; |
6236 | } | |
6237 | ||
6238 | if(numargs < minargs) err = "Not enough"; | |
6239 | else if(numargs > maxargs) err = "Too many"; | |
6240 | if (err) | |
6241 | /* diag_listed_as: Too many arguments for %s */ | |
6242 | Perl_croak(aTHX_ | |
6243 | "%s arguments for %s", err, | |
2a90c7c6 | 6244 | opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv) |
7fa5bd9b FC |
6245 | ); |
6246 | ||
6247 | /* Reset the stack pointer. Without this, we end up returning our own | |
6248 | arguments in list context, in addition to the values we are supposed | |
6249 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 6250 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b | 6251 | nextstate. */ |
4ebe6e95 | 6252 | SP = PL_stack_base + CX_CUR()->blk_oldsp; |
7fa5bd9b | 6253 | |
46e00a91 FC |
6254 | if(!maxargs) RETURN; |
6255 | ||
bf0571fd FC |
6256 | /* We do this here, rather than with a separate pushmark op, as it has |
6257 | to come in between two things this function does (stack reset and | |
6258 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 6259 | if (pushmark) { |
bf0571fd FC |
6260 | PUTBACK; |
6261 | (void)Perl_pp_pushmark(aTHX); | |
6262 | } | |
6263 | ||
6264 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 6265 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
6266 | |
6267 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 6268 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 6269 | whicharg++; |
46e00a91 FC |
6270 | switch (oa & 7) { |
6271 | case OA_SCALAR: | |
1efec5ed | 6272 | try_defsv: |
d6d78e19 | 6273 | if (!numargs && defgv && whicharg == minargs + 1) { |
195eefec | 6274 | PUSHs(DEFSV); |
d6d78e19 FC |
6275 | } |
6276 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 6277 | break; |
bf0571fd FC |
6278 | case OA_LIST: |
6279 | while (numargs--) { | |
6280 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
6281 | svp++; | |
6282 | } | |
6283 | RETURN; | |
bea284c8 FC |
6284 | case OA_AVREF: |
6285 | if (!numargs) { | |
6286 | GV *gv; | |
6287 | if (CvUNIQUE(find_runcv_where(FIND_RUNCV_level_eq,1,NULL))) | |
6288 | gv = PL_argvgv; | |
6289 | else { | |
6290 | S_maybe_unwind_defav(aTHX); | |
6291 | gv = PL_defgv; | |
6292 | } | |
6293 | PUSHs((SV *)GvAVn(gv)); | |
6294 | break; | |
6295 | } | |
6296 | if (!svp || !*svp || !SvROK(*svp) | |
6297 | || SvTYPE(SvRV(*svp)) != SVt_PVAV) | |
6298 | DIE(aTHX_ | |
6299 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
6300 | "Type of arg %d to &CORE::%s must be array reference", | |
6301 | whicharg, PL_op_desc[opnum] | |
6302 | ); | |
6303 | PUSHs(SvRV(*svp)); | |
6304 | break; | |
19c481f4 FC |
6305 | case OA_HVREF: |
6306 | if (!svp || !*svp || !SvROK(*svp) | |
73665bc4 FC |
6307 | || ( SvTYPE(SvRV(*svp)) != SVt_PVHV |
6308 | && ( opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6309 | || SvTYPE(SvRV(*svp)) != SVt_PVAV ))) | |
19c481f4 FC |
6310 | DIE(aTHX_ |
6311 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
73665bc4 FC |
6312 | "Type of arg %d to &CORE::%s must be hash%s reference", |
6313 | whicharg, PL_op_desc[opnum], | |
6314 | opnum == OP_DBMCLOSE || opnum == OP_DBMOPEN | |
6315 | ? "" | |
6316 | : " or array" | |
19c481f4 FC |
6317 | ); |
6318 | PUSHs(SvRV(*svp)); | |
6319 | break; | |
c931b036 | 6320 | case OA_FILEREF: |
30901a8a FC |
6321 | if (!numargs) PUSHs(NULL); |
6322 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
6323 | /* no magic here, as the prototype will have added an extra |
6324 | refgen and we just want what was there before that */ | |
6325 | PUSHs(SvRV(*svp)); | |
6326 | else { | |
6327 | const bool constr = PL_op->op_private & whicharg; | |
6328 | PUSHs(S_rv2gv(aTHX_ | |
6329 | svp && *svp ? *svp : &PL_sv_undef, | |
b54f893d | 6330 | constr, cBOOL(CopHINTS_get(PL_curcop) & HINT_STRICT_REFS), |
c931b036 FC |
6331 | !constr |
6332 | )); | |
6333 | } | |
6334 | break; | |
c72a5629 | 6335 | case OA_SCALARREF: |
1efec5ed FC |
6336 | if (!numargs) goto try_defsv; |
6337 | else { | |
17008668 FC |
6338 | const bool wantscalar = |
6339 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 6340 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
6341 | /* We have to permit globrefs even for the \$ proto, as |
6342 | *foo is indistinguishable from ${\*foo}, and the proto- | |
6343 | type permits the latter. */ | |
6344 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae | 6345 | wantscalar ? SVt_PVLV |
46bef06f FC |
6346 | : opnum == OP_LOCK || opnum == OP_UNDEF |
6347 | ? SVt_PVCV | |
efe889ae | 6348 | : SVt_PVHV |
17008668 | 6349 | ) |
c72a5629 FC |
6350 | ) |
6351 | DIE(aTHX_ | |
17008668 | 6352 | "Type of arg %d to &CORE::%s must be %s", |
46bef06f | 6353 | whicharg, PL_op_name[opnum], |
17008668 FC |
6354 | wantscalar |
6355 | ? "scalar reference" | |
46bef06f | 6356 | : opnum == OP_LOCK || opnum == OP_UNDEF |
efe889ae FC |
6357 | ? "reference to one of [$@%&*]" |
6358 | : "reference to one of [$@%*]" | |
c72a5629 FC |
6359 | ); |
6360 | PUSHs(SvRV(*svp)); | |
bea284c8 | 6361 | if (opnum == OP_UNDEF && SvRV(*svp) == (SV *)PL_defgv) { |
88bb468b | 6362 | /* Undo @_ localisation, so that sub exit does not undo |
04e686b8 | 6363 | part of our undeffing. */ |
bea284c8 | 6364 | S_maybe_unwind_defav(aTHX); |
88bb468b | 6365 | } |
17008668 | 6366 | } |
1efec5ed | 6367 | break; |
46e00a91 | 6368 | default: |
46e00a91 FC |
6369 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
6370 | } | |
6371 | oa = oa >> 4; | |
6372 | } | |
6373 | ||
deb8a388 FC |
6374 | RETURN; |
6375 | } | |
6376 | ||
a2232057 DM |
6377 | /* Implement CORE::keys(),values(),each(). |
6378 | * | |
6379 | * We won't know until run-time whether the arg is an array or hash, | |
6380 | * so this op calls | |
6381 | * | |
6382 | * pp_keys/pp_values/pp_each | |
6383 | * or | |
6384 | * pp_akeys/pp_avalues/pp_aeach | |
6385 | * | |
6386 | * as appropriate (or whatever pp function actually implements the OP_FOO | |
6387 | * functionality for each FOO). | |
6388 | */ | |
6389 | ||
88101882 FC |
6390 | PP(pp_avhvswitch) |
6391 | { | |
a73158aa | 6392 | dVAR; dSP; |
73665bc4 FC |
6393 | return PL_ppaddr[ |
6394 | (SvTYPE(TOPs) == SVt_PVAV ? OP_AEACH : OP_EACH) | |
e1e26374 | 6395 | + (PL_op->op_private & OPpAVHVSWITCH_MASK) |
73665bc4 | 6396 | ](aTHX); |
88101882 FC |
6397 | } |
6398 | ||
84ed0108 FC |
6399 | PP(pp_runcv) |
6400 | { | |
6401 | dSP; | |
6402 | CV *cv; | |
6403 | if (PL_op->op_private & OPpOFFBYONE) { | |
db4cf31d | 6404 | cv = find_runcv_where(FIND_RUNCV_level_eq, 1, NULL); |
84ed0108 FC |
6405 | } |
6406 | else cv = find_runcv(NULL); | |
e157a82b | 6407 | XPUSHs(CvEVAL(cv) ? &PL_sv_undef : sv_2mortal(newRV((SV *)cv))); |
84ed0108 FC |
6408 | RETURN; |
6409 | } | |
6410 | ||
05a34802 | 6411 | static void |
2331e434 | 6412 | S_localise_aelem_lval(pTHX_ AV * const av, SV * const keysv, |
05a34802 FC |
6413 | const bool can_preserve) |
6414 | { | |
2331e434 | 6415 | const SSize_t ix = SvIV(keysv); |
05a34802 FC |
6416 | if (can_preserve ? av_exists(av, ix) : TRUE) { |
6417 | SV ** const svp = av_fetch(av, ix, 1); | |
6418 | if (!svp || !*svp) | |
6419 | Perl_croak(aTHX_ PL_no_aelem, ix); | |
6420 | save_aelem(av, ix, svp); | |
6421 | } | |
6422 | else | |
6423 | SAVEADELETE(av, ix); | |
6424 | } | |
6425 | ||
5f94141d FC |
6426 | static void |
6427 | S_localise_helem_lval(pTHX_ HV * const hv, SV * const keysv, | |
6428 | const bool can_preserve) | |
6429 | { | |
6430 | if (can_preserve ? hv_exists_ent(hv, keysv, 0) : TRUE) { | |
6431 | HE * const he = hv_fetch_ent(hv, keysv, 1, 0); | |
6432 | SV ** const svp = he ? &HeVAL(he) : NULL; | |
6433 | if (!svp || !*svp) | |
6434 | Perl_croak(aTHX_ PL_no_helem_sv, SVfARG(keysv)); | |
6435 | save_helem_flags(hv, keysv, svp, 0); | |
6436 | } | |
6437 | else | |
6438 | SAVEHDELETE(hv, keysv); | |
6439 | } | |
6440 | ||
9782ce69 FC |
6441 | static void |
6442 | S_localise_gv_slot(pTHX_ GV *gv, U8 type) | |
6443 | { | |
6444 | if (type == OPpLVREF_SV) { | |
6445 | save_pushptrptr(gv, SvREFCNT_inc_simple(GvSV(gv)), SAVEt_GVSV); | |
6446 | GvSV(gv) = 0; | |
6447 | } | |
6448 | else if (type == OPpLVREF_AV) | |
6449 | /* XXX Inefficient, as it creates a new AV, which we are | |
6450 | about to clobber. */ | |
6451 | save_ary(gv); | |
6452 | else { | |
6453 | assert(type == OPpLVREF_HV); | |
6454 | /* XXX Likewise inefficient. */ | |
6455 | save_hash(gv); | |
6456 | } | |
6457 | } | |
6458 | ||
6459 | ||
254da51f FC |
6460 | PP(pp_refassign) |
6461 | { | |
4fec8804 | 6462 | dSP; |
6102323a | 6463 | SV * const key = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
d8a875d9 | 6464 | SV * const left = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
4fec8804 | 6465 | dTOPss; |
3f114923 | 6466 | const char *bad = NULL; |
ac0da85a | 6467 | const U8 type = PL_op->op_private & OPpLVREF_TYPE; |
4fec8804 | 6468 | if (!SvROK(sv)) DIE(aTHX_ "Assigned value is not a reference"); |
ac0da85a | 6469 | switch (type) { |
3f114923 FC |
6470 | case OPpLVREF_SV: |
6471 | if (SvTYPE(SvRV(sv)) > SVt_PVLV) | |
6472 | bad = " SCALAR"; | |
6473 | break; | |
6474 | case OPpLVREF_AV: | |
6475 | if (SvTYPE(SvRV(sv)) != SVt_PVAV) | |
6476 | bad = "n ARRAY"; | |
6477 | break; | |
6478 | case OPpLVREF_HV: | |
6479 | if (SvTYPE(SvRV(sv)) != SVt_PVHV) | |
6480 | bad = " HASH"; | |
6481 | break; | |
6482 | case OPpLVREF_CV: | |
6483 | if (SvTYPE(SvRV(sv)) != SVt_PVCV) | |
6484 | bad = " CODE"; | |
6485 | } | |
6486 | if (bad) | |
1f8155a2 | 6487 | /* diag_listed_as: Assigned value is not %s reference */ |
3f114923 | 6488 | DIE(aTHX_ "Assigned value is not a%s reference", bad); |
b943805e JH |
6489 | { |
6490 | MAGIC *mg; | |
6491 | HV *stash; | |
d8a875d9 FC |
6492 | switch (left ? SvTYPE(left) : 0) { |
6493 | case 0: | |
cf5d2d91 FC |
6494 | { |
6495 | SV * const old = PAD_SV(ARGTARG); | |
d8a875d9 | 6496 | PAD_SETSV(ARGTARG, SvREFCNT_inc_NN(SvRV(sv))); |
cf5d2d91 | 6497 | SvREFCNT_dec(old); |
3ad7d304 FC |
6498 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpPAD_STATE)) |
6499 | == OPpLVAL_INTRO) | |
fc048fcf | 6500 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
d8a875d9 | 6501 | break; |
cf5d2d91 | 6502 | } |
d8a875d9 | 6503 | case SVt_PVGV: |
2a57afb1 | 6504 | if (PL_op->op_private & OPpLVAL_INTRO) { |
9782ce69 | 6505 | S_localise_gv_slot(aTHX_ (GV *)left, type); |
2a57afb1 | 6506 | } |
d8a875d9 FC |
6507 | gv_setref(left, sv); |
6508 | SvSETMAGIC(left); | |
6102323a FC |
6509 | break; |
6510 | case SVt_PVAV: | |
69a23520 | 6511 | assert(key); |
40d2b828 | 6512 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
2331e434 | 6513 | S_localise_aelem_lval(aTHX_ (AV *)left, key, |
05a34802 | 6514 | SvCANEXISTDELETE(left)); |
40d2b828 | 6515 | } |
6102323a FC |
6516 | av_store((AV *)left, SvIV(key), SvREFCNT_inc_simple_NN(SvRV(sv))); |
6517 | break; | |
5f94141d | 6518 | case SVt_PVHV: |
69a23520 JH |
6519 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
6520 | assert(key); | |
5f94141d FC |
6521 | S_localise_helem_lval(aTHX_ (HV *)left, key, |
6522 | SvCANEXISTDELETE(left)); | |
69a23520 | 6523 | } |
7fcb36d5 | 6524 | (void)hv_store_ent((HV *)left, key, SvREFCNT_inc_simple_NN(SvRV(sv)), 0); |
d8a875d9 | 6525 | } |
4fec8804 FC |
6526 | if (PL_op->op_flags & OPf_MOD) |
6527 | SETs(sv_2mortal(newSVsv(sv))); | |
6528 | /* XXX else can weak references go stale before they are read, e.g., | |
6529 | in leavesub? */ | |
6530 | RETURN; | |
b943805e | 6531 | } |
254da51f FC |
6532 | } |
6533 | ||
4c5bab50 FC |
6534 | PP(pp_lvref) |
6535 | { | |
26a50d99 FC |
6536 | dSP; |
6537 | SV * const ret = sv_2mortal(newSV_type(SVt_PVMG)); | |
6102323a | 6538 | SV * const elem = PL_op->op_private & OPpLVREF_ELEM ? POPs : NULL; |
2a57afb1 | 6539 | SV * const arg = PL_op->op_flags & OPf_STACKED ? POPs : NULL; |
9782ce69 FC |
6540 | MAGIC * const mg = sv_magicext(ret, arg, PERL_MAGIC_lvref, |
6541 | &PL_vtbl_lvref, (char *)elem, | |
23270f96 | 6542 | elem ? HEf_SVKEY : (I32)ARGTARG); |
9782ce69 | 6543 | mg->mg_private = PL_op->op_private; |
d39c26a6 FC |
6544 | if (PL_op->op_private & OPpLVREF_ITER) |
6545 | mg->mg_flags |= MGf_PERSIST; | |
9846cd95 | 6546 | if (UNLIKELY(PL_op->op_private & OPpLVAL_INTRO)) { |
40d2b828 | 6547 | if (elem) { |
38bb0011 JH |
6548 | MAGIC *mg; |
6549 | HV *stash; | |
6550 | assert(arg); | |
6551 | { | |
6552 | const bool can_preserve = SvCANEXISTDELETE(arg); | |
6553 | if (SvTYPE(arg) == SVt_PVAV) | |
6554 | S_localise_aelem_lval(aTHX_ (AV *)arg, elem, can_preserve); | |
6555 | else | |
6556 | S_localise_helem_lval(aTHX_ (HV *)arg, elem, can_preserve); | |
6557 | } | |
40d2b828 FC |
6558 | } |
6559 | else if (arg) { | |
9782ce69 FC |
6560 | S_localise_gv_slot(aTHX_ (GV *)arg, |
6561 | PL_op->op_private & OPpLVREF_TYPE); | |
2a57afb1 | 6562 | } |
3ad7d304 | 6563 | else if (!(PL_op->op_private & OPpPAD_STATE)) |
c146a62a | 6564 | SAVECLEARSV(PAD_SVl(ARGTARG)); |
1199b01a | 6565 | } |
c146a62a FC |
6566 | XPUSHs(ret); |
6567 | RETURN; | |
4c5bab50 | 6568 | } |
84ed0108 | 6569 | |
16b99412 FC |
6570 | PP(pp_lvrefslice) |
6571 | { | |
a95dad8a | 6572 | dSP; dMARK; |
0ca7b7f7 FC |
6573 | AV * const av = (AV *)POPs; |
6574 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
6575 | bool can_preserve = FALSE; | |
6576 | ||
9846cd95 | 6577 | if (UNLIKELY(localizing)) { |
0ca7b7f7 FC |
6578 | MAGIC *mg; |
6579 | HV *stash; | |
6580 | SV **svp; | |
6581 | ||
6582 | can_preserve = SvCANEXISTDELETE(av); | |
6583 | ||
6584 | if (SvTYPE(av) == SVt_PVAV) { | |
6585 | SSize_t max = -1; | |
6586 | ||
6587 | for (svp = MARK + 1; svp <= SP; svp++) { | |
6588 | const SSize_t elem = SvIV(*svp); | |
6589 | if (elem > max) | |
6590 | max = elem; | |
6591 | } | |
6592 | if (max > AvMAX(av)) | |
6593 | av_extend(av, max); | |
6594 | } | |
6595 | } | |
6596 | ||
6597 | while (++MARK <= SP) { | |
6598 | SV * const elemsv = *MARK; | |
5f94141d | 6599 | if (SvTYPE(av) == SVt_PVAV) |
2331e434 | 6600 | S_localise_aelem_lval(aTHX_ av, elemsv, can_preserve); |
5f94141d FC |
6601 | else |
6602 | S_localise_helem_lval(aTHX_ (HV *)av, elemsv, can_preserve); | |
0ca7b7f7 FC |
6603 | *MARK = sv_2mortal(newSV_type(SVt_PVMG)); |
6604 | sv_magic(*MARK,(SV *)av,PERL_MAGIC_lvref,(char *)elemsv,HEf_SVKEY); | |
6605 | } | |
6606 | RETURN; | |
16b99412 FC |
6607 | } |
6608 | ||
2882b3ff FC |
6609 | PP(pp_lvavref) |
6610 | { | |
bdaf10a5 FC |
6611 | if (PL_op->op_flags & OPf_STACKED) |
6612 | Perl_pp_rv2av(aTHX); | |
6613 | else | |
6614 | Perl_pp_padav(aTHX); | |
6615 | { | |
6616 | dSP; | |
6617 | dTOPss; | |
6618 | SETs(0); /* special alias marker that aassign recognises */ | |
6619 | XPUSHs(sv); | |
6620 | RETURN; | |
6621 | } | |
2882b3ff FC |
6622 | } |
6623 | ||
b77472f9 FC |
6624 | PP(pp_anonconst) |
6625 | { | |
6626 | dSP; | |
6627 | dTOPss; | |
6628 | SETs(sv_2mortal((SV *)newCONSTSUB(SvTYPE(CopSTASH(PL_curcop))==SVt_PVHV | |
6629 | ? CopSTASH(PL_curcop) | |
6630 | : NULL, | |
6631 | NULL, SvREFCNT_inc_simple_NN(sv)))); | |
6632 | RETURN; | |
6633 | } | |
6634 | ||
4fa06845 DM |
6635 | |
6636 | /* process one subroutine argument - typically when the sub has a signature: | |
6637 | * introduce PL_curpad[op_targ] and assign to it the value | |
6638 | * for $: (OPf_STACKED ? *sp : $_[N]) | |
6639 | * for @/%: @_[N..$#_] | |
6640 | * | |
6641 | * It's equivalent to | |
6642 | * my $foo = $_[N]; | |
6643 | * or | |
6644 | * my $foo = (value-on-stack) | |
6645 | * or | |
6646 | * my @foo = @_[N..$#_] | |
6647 | * etc | |
4fa06845 DM |
6648 | */ |
6649 | ||
6650 | PP(pp_argelem) | |
6651 | { | |
6652 | dTARG; | |
6653 | SV *val; | |
6654 | SV ** padentry; | |
6655 | OP *o = PL_op; | |
6656 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6657 | IV ix = PTR2IV(cUNOP_AUXo->op_aux); |
4fa06845 | 6658 | IV argc; |
4fa06845 DM |
6659 | |
6660 | /* do 'my $var, @var or %var' action */ | |
6661 | padentry = &(PAD_SVl(o->op_targ)); | |
6662 | save_clearsv(padentry); | |
6663 | targ = *padentry; | |
6664 | ||
6665 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_SV) { | |
6666 | if (o->op_flags & OPf_STACKED) { | |
6667 | dSP; | |
6668 | val = POPs; | |
6669 | PUTBACK; | |
6670 | } | |
6671 | else { | |
f6ca42c7 | 6672 | SV **svp; |
4fa06845 | 6673 | /* should already have been checked */ |
f6ca42c7 | 6674 | assert(ix >= 0); |
6daeaaa3 DM |
6675 | #if IVSIZE > PTRSIZE |
6676 | assert(ix <= SSize_t_MAX); | |
6677 | #endif | |
f6ca42c7 DM |
6678 | |
6679 | svp = av_fetch(defav, ix, FALSE); | |
6680 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 DM |
6681 | } |
6682 | ||
6683 | /* $var = $val */ | |
6684 | ||
6685 | /* cargo-culted from pp_sassign */ | |
6686 | assert(TAINTING_get || !TAINT_get); | |
6687 | if (UNLIKELY(TAINT_get) && !SvTAINTED(val)) | |
6688 | TAINT_NOT; | |
6689 | ||
f6ca42c7 | 6690 | SvSetMagicSV(targ, val); |
4fa06845 DM |
6691 | return o->op_next; |
6692 | } | |
6693 | ||
6694 | /* must be AV or HV */ | |
6695 | ||
6696 | assert(!(o->op_flags & OPf_STACKED)); | |
f6ca42c7 | 6697 | argc = ((IV)AvFILL(defav) + 1) - ix; |
4fa06845 DM |
6698 | |
6699 | /* This is a copy of the relevant parts of pp_aassign(). | |
4fa06845 DM |
6700 | */ |
6701 | if ((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_AV) { | |
f6ca42c7 DM |
6702 | IV i; |
6703 | ||
6704 | if (AvFILL((AV*)targ) > -1) { | |
6705 | /* target should usually be empty. If we get get | |
6706 | * here, someone's been doing some weird closure tricks. | |
6707 | * Make a copy of all args before clearing the array, | |
6708 | * to avoid the equivalent of @a = ($a[0]) prematurely freeing | |
6709 | * elements. See similar code in pp_aassign. | |
6710 | */ | |
6711 | for (i = 0; i < argc; i++) { | |
6712 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
6713 | SV *newsv = newSV(0); | |
6714 | sv_setsv_flags(newsv, | |
6715 | svp ? *svp : &PL_sv_undef, | |
6716 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
6717 | if (!av_store(defav, ix + i, newsv)) | |
6718 | SvREFCNT_dec_NN(newsv); | |
6719 | } | |
6720 | av_clear((AV*)targ); | |
6721 | } | |
6722 | ||
6723 | if (argc <= 0) | |
6724 | return o->op_next; | |
4fa06845 | 6725 | |
4fa06845 DM |
6726 | av_extend((AV*)targ, argc); |
6727 | ||
f6ca42c7 | 6728 | i = 0; |
4fa06845 DM |
6729 | while (argc--) { |
6730 | SV *tmpsv; | |
f6ca42c7 DM |
6731 | SV **svp = av_fetch(defav, ix + i, FALSE); |
6732 | SV *val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 6733 | tmpsv = newSV(0); |
f6ca42c7 | 6734 | sv_setsv(tmpsv, val); |
4fa06845 DM |
6735 | av_store((AV*)targ, i++, tmpsv); |
6736 | TAINT_NOT; | |
6737 | } | |
6738 | ||
6739 | } | |
6740 | else { | |
f6ca42c7 DM |
6741 | IV i; |
6742 | ||
4fa06845 DM |
6743 | assert((o->op_private & OPpARGELEM_MASK) == OPpARGELEM_HV); |
6744 | ||
f6ca42c7 DM |
6745 | if (SvRMAGICAL(targ) || HvUSEDKEYS((HV*)targ)) { |
6746 | /* see "target should usually be empty" comment above */ | |
6747 | for (i = 0; i < argc; i++) { | |
6748 | SV **svp = av_fetch(defav, ix + i, FALSE); | |
6749 | SV *newsv = newSV(0); | |
6750 | sv_setsv_flags(newsv, | |
6751 | svp ? *svp : &PL_sv_undef, | |
6752 | (SV_DO_COW_SVSETSV|SV_NOSTEAL)); | |
6753 | if (!av_store(defav, ix + i, newsv)) | |
6754 | SvREFCNT_dec_NN(newsv); | |
6755 | } | |
6756 | hv_clear((HV*)targ); | |
6757 | } | |
6758 | ||
6759 | if (argc <= 0) | |
6760 | return o->op_next; | |
4fa06845 | 6761 | assert(argc % 2 == 0); |
4fa06845 | 6762 | |
f6ca42c7 | 6763 | i = 0; |
4fa06845 DM |
6764 | while (argc) { |
6765 | SV *tmpsv; | |
f6ca42c7 DM |
6766 | SV **svp; |
6767 | SV *key; | |
6768 | SV *val; | |
6769 | ||
6770 | svp = av_fetch(defav, ix + i++, FALSE); | |
6771 | key = svp ? *svp : &PL_sv_undef; | |
6772 | svp = av_fetch(defav, ix + i++, FALSE); | |
6773 | val = svp ? *svp : &PL_sv_undef; | |
4fa06845 | 6774 | |
4fa06845 DM |
6775 | argc -= 2; |
6776 | if (UNLIKELY(SvGMAGICAL(key))) | |
6777 | key = sv_mortalcopy(key); | |
6778 | tmpsv = newSV(0); | |
6779 | sv_setsv(tmpsv, val); | |
6780 | hv_store_ent((HV*)targ, key, tmpsv, 0); | |
6781 | TAINT_NOT; | |
6782 | } | |
6783 | } | |
6784 | ||
6785 | return o->op_next; | |
6786 | } | |
6787 | ||
6788 | /* Handle a default value for one subroutine argument (typically as part | |
6789 | * of a subroutine signature). | |
6790 | * It's equivalent to | |
6791 | * @_ > op_targ ? $_[op_targ] : result_of(op_other) | |
6792 | * | |
6793 | * Intended to be used where op_next is an OP_ARGELEM | |
6794 | * | |
6795 | * We abuse the op_targ field slightly: it's an index into @_ rather than | |
6796 | * into PL_curpad. | |
6797 | */ | |
6798 | ||
6799 | PP(pp_argdefelem) | |
6800 | { | |
6801 | OP * const o = PL_op; | |
6802 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6803 | IV ix = (IV)o->op_targ; |
4fa06845 | 6804 | |
f6ca42c7 | 6805 | assert(ix >= 0); |
6daeaaa3 DM |
6806 | #if IVSIZE > PTRSIZE |
6807 | assert(ix <= SSize_t_MAX); | |
6808 | #endif | |
f6ca42c7 DM |
6809 | |
6810 | if (AvFILL(defav) >= ix) { | |
4fa06845 | 6811 | dSP; |
f6ca42c7 DM |
6812 | SV **svp = av_fetch(defav, ix, FALSE); |
6813 | SV *val = svp ? *svp : &PL_sv_undef; | |
6814 | XPUSHs(val); | |
4fa06845 DM |
6815 | RETURN; |
6816 | } | |
6817 | return cLOGOPo->op_other; | |
6818 | } | |
6819 | ||
6820 | ||
ac7609e4 AC |
6821 | static SV * |
6822 | S_find_runcv_name(void) | |
6823 | { | |
6824 | dTHX; | |
6825 | CV *cv; | |
6826 | GV *gv; | |
6827 | SV *sv; | |
6828 | ||
6829 | cv = find_runcv(0); | |
6830 | if (!cv) | |
6831 | return &PL_sv_no; | |
6832 | ||
6833 | gv = CvGV(cv); | |
6834 | if (!gv) | |
6835 | return &PL_sv_no; | |
6836 | ||
6837 | sv = sv_2mortal(newSV(0)); | |
6838 | gv_fullname4(sv, gv, NULL, TRUE); | |
6839 | return sv; | |
6840 | } | |
4fa06845 DM |
6841 | |
6842 | /* Check a a subs arguments - i.e. that it has the correct number of args | |
6843 | * (and anything else we might think of in future). Typically used with | |
6844 | * signatured subs. | |
6845 | */ | |
6846 | ||
6847 | PP(pp_argcheck) | |
6848 | { | |
6849 | OP * const o = PL_op; | |
6850 | UNOP_AUX_item *aux = cUNOP_AUXo->op_aux; | |
6daeaaa3 DM |
6851 | IV params = aux[0].iv; |
6852 | IV opt_params = aux[1].iv; | |
4fa06845 DM |
6853 | char slurpy = (char)(aux[2].iv); |
6854 | AV *defav = GvAV(PL_defgv); /* @_ */ | |
6daeaaa3 | 6855 | IV argc; |
4fa06845 DM |
6856 | bool too_few; |
6857 | ||
6858 | assert(!SvMAGICAL(defav)); | |
6daeaaa3 | 6859 | argc = (AvFILLp(defav) + 1); |
4fa06845 DM |
6860 | too_few = (argc < (params - opt_params)); |
6861 | ||
6862 | if (UNLIKELY(too_few || (!slurpy && argc > params))) | |
ac7609e4 AC |
6863 | /* diag_listed_as: Too few arguments for subroutine '%s' */ |
6864 | /* diag_listed_as: Too many arguments for subroutine '%s' */ | |
6865 | Perl_croak_caller("Too %s arguments for subroutine '%" SVf "'", | |
6866 | too_few ? "few" : "many", S_find_runcv_name()); | |
4fa06845 DM |
6867 | |
6868 | if (UNLIKELY(slurpy == '%' && argc > params && (argc - params) % 2)) | |
ac7609e4 AC |
6869 | /* diag_listed_as: Odd name/value argument for subroutine '%s' */ |
6870 | Perl_croak_caller("Odd name/value argument for subroutine '%" SVf "'", | |
6871 | S_find_runcv_name()); | |
4fa06845 DM |
6872 | |
6873 | return NORMAL; | |
6874 | } | |
6875 | ||
e609e586 | 6876 | /* |
14d04a33 | 6877 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 6878 | */ |