Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* pp.c |
79072805 | 2 | * |
1129b882 NC |
3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
4 | * 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by Larry Wall and others | |
79072805 | 5 | * |
a0d0e21e LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
79072805 | 8 | * |
a0d0e21e LW |
9 | */ |
10 | ||
11 | /* | |
4ac71550 TC |
12 | * 'It's a big house this, and very peculiar. Always a bit more |
13 | * to discover, and no knowing what you'll find round a corner. | |
14 | * And Elves, sir!' --Samwise Gamgee | |
15 | * | |
16 | * [p.225 of _The Lord of the Rings_, II/i: "Many Meetings"] | |
a0d0e21e | 17 | */ |
79072805 | 18 | |
166f8a29 DM |
19 | /* This file contains general pp ("push/pop") functions that execute the |
20 | * opcodes that make up a perl program. A typical pp function expects to | |
21 | * find its arguments on the stack, and usually pushes its results onto | |
22 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
23 | * a pointer to the relevant pp_foo() function. | |
24 | */ | |
25 | ||
79072805 | 26 | #include "EXTERN.h" |
864dbfa3 | 27 | #define PERL_IN_PP_C |
79072805 | 28 | #include "perl.h" |
77bc9082 | 29 | #include "keywords.h" |
79072805 | 30 | |
a4af207c | 31 | #include "reentr.h" |
685289b5 | 32 | #include "regcharclass.h" |
a4af207c | 33 | |
dfe9444c AD |
34 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
35 | it, since pid_t is an integral type. | |
36 | --AD 2/20/1998 | |
37 | */ | |
38 | #ifdef NEED_GETPID_PROTO | |
39 | extern Pid_t getpid (void); | |
8ac85365 NIS |
40 | #endif |
41 | ||
0630166f SP |
42 | /* |
43 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
44 | * This switches them over to IEEE. | |
45 | */ | |
46 | #if defined(LIBM_LIB_VERSION) | |
47 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
48 | #endif | |
49 | ||
a78bc3c6 KW |
50 | static const STRLEN small_mu_len = sizeof(GREEK_SMALL_LETTER_MU_UTF8) - 1; |
51 | static const STRLEN capital_iota_len = sizeof(GREEK_CAPITAL_LETTER_IOTA_UTF8) - 1; | |
52 | ||
13017935 SM |
53 | /* variations on pp_null */ |
54 | ||
93a17b20 LW |
55 | PP(pp_stub) |
56 | { | |
97aff369 | 57 | dVAR; |
39644a26 | 58 | dSP; |
54310121 | 59 | if (GIMME_V == G_SCALAR) |
3280af22 | 60 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
61 | RETURN; |
62 | } | |
63 | ||
79072805 LW |
64 | /* Pushy stuff. */ |
65 | ||
93a17b20 LW |
66 | PP(pp_padav) |
67 | { | |
97aff369 | 68 | dVAR; dSP; dTARGET; |
13017935 | 69 | I32 gimme; |
e190e9b4 | 70 | assert(SvTYPE(TARG) == SVt_PVAV); |
3dbcc5e0 S |
71 | if (UNLIKELY( PL_op->op_private & OPpLVAL_INTRO )) |
72 | if (LIKELY( !(PL_op->op_private & OPpPAD_STATE) )) | |
a5911867 | 73 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
85e6fe83 | 74 | EXTEND(SP, 1); |
533c011a | 75 | if (PL_op->op_flags & OPf_REF) { |
85e6fe83 | 76 | PUSHs(TARG); |
93a17b20 | 77 | RETURN; |
40c94d11 FC |
78 | } else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
79 | const I32 flags = is_lvalue_sub(); | |
80 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
78f9721b | 81 | if (GIMME == G_SCALAR) |
a84828f3 | 82 | /* diag_listed_as: Can't return %s to lvalue scalar context */ |
78f9721b SM |
83 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); |
84 | PUSHs(TARG); | |
85 | RETURN; | |
40c94d11 | 86 | } |
85e6fe83 | 87 | } |
13017935 SM |
88 | gimme = GIMME_V; |
89 | if (gimme == G_ARRAY) { | |
d5524600 | 90 | /* XXX see also S_pushav in pp_hot.c */ |
502c6561 | 91 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 | 92 | EXTEND(SP, maxarg); |
93965878 NIS |
93 | if (SvMAGICAL(TARG)) { |
94 | U32 i; | |
eb160463 | 95 | for (i=0; i < (U32)maxarg; i++) { |
502c6561 | 96 | SV * const * const svp = av_fetch(MUTABLE_AV(TARG), i, FALSE); |
3280af22 | 97 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
98 | } |
99 | } | |
100 | else { | |
502c6561 | 101 | Copy(AvARRAY((const AV *)TARG), SP+1, maxarg, SV*); |
93965878 | 102 | } |
85e6fe83 LW |
103 | SP += maxarg; |
104 | } | |
13017935 | 105 | else if (gimme == G_SCALAR) { |
1b6737cc | 106 | SV* const sv = sv_newmortal(); |
502c6561 | 107 | const I32 maxarg = AvFILL(MUTABLE_AV(TARG)) + 1; |
85e6fe83 LW |
108 | sv_setiv(sv, maxarg); |
109 | PUSHs(sv); | |
110 | } | |
111 | RETURN; | |
93a17b20 LW |
112 | } |
113 | ||
114 | PP(pp_padhv) | |
115 | { | |
97aff369 | 116 | dVAR; dSP; dTARGET; |
54310121 | 117 | I32 gimme; |
118 | ||
e190e9b4 | 119 | assert(SvTYPE(TARG) == SVt_PVHV); |
93a17b20 | 120 | XPUSHs(TARG); |
3dbcc5e0 S |
121 | if (UNLIKELY( PL_op->op_private & OPpLVAL_INTRO )) |
122 | if (LIKELY( !(PL_op->op_private & OPpPAD_STATE) )) | |
a5911867 | 123 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
533c011a | 124 | if (PL_op->op_flags & OPf_REF) |
93a17b20 | 125 | RETURN; |
40c94d11 FC |
126 | else if (PL_op->op_private & OPpMAYBE_LVSUB) { |
127 | const I32 flags = is_lvalue_sub(); | |
128 | if (flags && !(flags & OPpENTERSUB_INARGS)) { | |
78f9721b | 129 | if (GIMME == G_SCALAR) |
a84828f3 | 130 | /* diag_listed_as: Can't return %s to lvalue scalar context */ |
78f9721b SM |
131 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); |
132 | RETURN; | |
40c94d11 | 133 | } |
78f9721b | 134 | } |
54310121 | 135 | gimme = GIMME_V; |
136 | if (gimme == G_ARRAY) { | |
981b7185 | 137 | RETURNOP(Perl_do_kv(aTHX)); |
85e6fe83 | 138 | } |
c8fe3bdf | 139 | else if ((PL_op->op_private & OPpTRUEBOOL |
adc42c31 | 140 | || ( PL_op->op_private & OPpMAYBE_TRUEBOOL |
c8fe3bdf FC |
141 | && block_gimme() == G_VOID )) |
142 | && (!SvRMAGICAL(TARG) || !mg_find(TARG, PERL_MAGIC_tied))) | |
143 | SETs(HvUSEDKEYS(TARG) ? &PL_sv_yes : sv_2mortal(newSViv(0))); | |
54310121 | 144 | else if (gimme == G_SCALAR) { |
85fbaab2 | 145 | SV* const sv = Perl_hv_scalar(aTHX_ MUTABLE_HV(TARG)); |
85e6fe83 | 146 | SETs(sv); |
85e6fe83 | 147 | } |
54310121 | 148 | RETURN; |
93a17b20 LW |
149 | } |
150 | ||
ac217057 FC |
151 | PP(pp_padcv) |
152 | { | |
97b03d64 FC |
153 | dVAR; dSP; dTARGET; |
154 | assert(SvTYPE(TARG) == SVt_PVCV); | |
155 | XPUSHs(TARG); | |
156 | RETURN; | |
ac217057 FC |
157 | } |
158 | ||
ecf9c8b7 FC |
159 | PP(pp_introcv) |
160 | { | |
6d5c2147 FC |
161 | dVAR; dTARGET; |
162 | SvPADSTALE_off(TARG); | |
163 | return NORMAL; | |
ecf9c8b7 FC |
164 | } |
165 | ||
13f89586 FC |
166 | PP(pp_clonecv) |
167 | { | |
6d5c2147 | 168 | dVAR; dTARGET; |
81df9f6f | 169 | MAGIC * const mg = |
62698e04 FC |
170 | mg_find(PadlistNAMESARRAY(CvPADLIST(find_runcv(NULL)))[ARGTARG], |
171 | PERL_MAGIC_proto); | |
6d5c2147 FC |
172 | assert(SvTYPE(TARG) == SVt_PVCV); |
173 | assert(mg); | |
174 | assert(mg->mg_obj); | |
175 | if (CvISXSUB(mg->mg_obj)) { /* constant */ | |
176 | /* XXX Should we clone it here? */ | |
6d5c2147 FC |
177 | /* If this changes to use SAVECLEARSV, we can move the SAVECLEARSV |
178 | to introcv and remove the SvPADSTALE_off. */ | |
179 | SAVEPADSVANDMORTALIZE(ARGTARG); | |
4ded55f3 | 180 | PAD_SVl(ARGTARG) = SvREFCNT_inc_simple_NN(mg->mg_obj); |
6d5c2147 FC |
181 | } |
182 | else { | |
183 | if (CvROOT(mg->mg_obj)) { | |
184 | assert(CvCLONE(mg->mg_obj)); | |
185 | assert(!CvCLONED(mg->mg_obj)); | |
186 | } | |
187 | cv_clone_into((CV *)mg->mg_obj,(CV *)TARG); | |
188 | SAVECLEARSV(PAD_SVl(ARGTARG)); | |
189 | } | |
190 | return NORMAL; | |
13f89586 FC |
191 | } |
192 | ||
79072805 LW |
193 | /* Translations. */ |
194 | ||
4bdf8368 | 195 | static const char S_no_symref_sv[] = |
def89bff NC |
196 | "Can't use string (\"%" SVf32 "\"%s) as %s ref while \"strict refs\" in use"; |
197 | ||
6f7909da FC |
198 | /* In some cases this function inspects PL_op. If this function is called |
199 | for new op types, more bool parameters may need to be added in place of | |
200 | the checks. | |
201 | ||
202 | When noinit is true, the absence of a gv will cause a retval of undef. | |
203 | This is unrelated to the cv-to-gv assignment case. | |
6f7909da FC |
204 | */ |
205 | ||
206 | static SV * | |
207 | S_rv2gv(pTHX_ SV *sv, const bool vivify_sv, const bool strict, | |
208 | const bool noinit) | |
209 | { | |
14f0f125 | 210 | dVAR; |
f64c9ac5 | 211 | if (!isGV(sv) || SvFAKE(sv)) SvGETMAGIC(sv); |
ed6116ce | 212 | if (SvROK(sv)) { |
93d7320b DM |
213 | if (SvAMAGIC(sv)) { |
214 | sv = amagic_deref_call(sv, to_gv_amg); | |
93d7320b | 215 | } |
e4a1664f | 216 | wasref: |
ed6116ce | 217 | sv = SvRV(sv); |
b1dadf13 | 218 | if (SvTYPE(sv) == SVt_PVIO) { |
159b6efe | 219 | GV * const gv = MUTABLE_GV(sv_newmortal()); |
885f468a | 220 | gv_init(gv, 0, "__ANONIO__", 10, 0); |
a45c7426 | 221 | GvIOp(gv) = MUTABLE_IO(sv); |
b37c2d43 | 222 | SvREFCNT_inc_void_NN(sv); |
ad64d0ec | 223 | sv = MUTABLE_SV(gv); |
ef54e1a4 | 224 | } |
6e592b3a | 225 | else if (!isGV_with_GP(sv)) |
6f7909da | 226 | return (SV *)Perl_die(aTHX_ "Not a GLOB reference"); |
79072805 LW |
227 | } |
228 | else { | |
6e592b3a | 229 | if (!isGV_with_GP(sv)) { |
f132ae69 | 230 | if (!SvOK(sv)) { |
b13b2135 | 231 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 232 | * NI-S 1999/05/07 |
b13b2135 | 233 | */ |
f132ae69 | 234 | if (vivify_sv && sv != &PL_sv_undef) { |
2c8ac474 | 235 | GV *gv; |
ce74145d | 236 | if (SvREADONLY(sv)) |
cb077ed2 | 237 | Perl_croak_no_modify(); |
2c8ac474 | 238 | if (cUNOP->op_targ) { |
0bd48802 | 239 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
94e7eb6f FC |
240 | HV *stash = CopSTASH(PL_curcop); |
241 | if (SvTYPE(stash) != SVt_PVHV) stash = NULL; | |
159b6efe | 242 | gv = MUTABLE_GV(newSV(0)); |
94e7eb6f | 243 | gv_init_sv(gv, stash, namesv, 0); |
2c8ac474 GS |
244 | } |
245 | else { | |
0bd48802 | 246 | const char * const name = CopSTASHPV(PL_curcop); |
6b10071b | 247 | gv = newGVgen_flags(name, |
d14578b8 | 248 | HvNAMEUTF8(CopSTASH(PL_curcop)) ? SVf_UTF8 : 0 ); |
1d8d4d2a | 249 | } |
43230e26 | 250 | prepare_SV_for_RV(sv); |
ad64d0ec | 251 | SvRV_set(sv, MUTABLE_SV(gv)); |
853846ea | 252 | SvROK_on(sv); |
1d8d4d2a | 253 | SvSETMAGIC(sv); |
853846ea | 254 | goto wasref; |
2c8ac474 | 255 | } |
6f7909da FC |
256 | if (PL_op->op_flags & OPf_REF || strict) |
257 | return (SV *)Perl_die(aTHX_ PL_no_usym, "a symbol"); | |
599cee73 | 258 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 259 | report_uninit(sv); |
6f7909da | 260 | return &PL_sv_undef; |
a0d0e21e | 261 | } |
6f7909da | 262 | if (noinit) |
35cd451c | 263 | { |
77cb3b01 FC |
264 | if (!(sv = MUTABLE_SV(gv_fetchsv_nomg( |
265 | sv, GV_ADDMG, SVt_PVGV | |
23496c6e | 266 | )))) |
6f7909da | 267 | return &PL_sv_undef; |
35cd451c GS |
268 | } |
269 | else { | |
6f7909da FC |
270 | if (strict) |
271 | return | |
272 | (SV *)Perl_die(aTHX_ | |
273 | S_no_symref_sv, | |
274 | sv, | |
bf3d870f | 275 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), |
6f7909da FC |
276 | "a symbol" |
277 | ); | |
e26df76a NC |
278 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
279 | == OPpDONT_INIT_GV) { | |
280 | /* We are the target of a coderef assignment. Return | |
281 | the scalar unchanged, and let pp_sasssign deal with | |
282 | things. */ | |
6f7909da | 283 | return sv; |
e26df76a | 284 | } |
77cb3b01 | 285 | sv = MUTABLE_SV(gv_fetchsv_nomg(sv, GV_ADD, SVt_PVGV)); |
35cd451c | 286 | } |
2acc3314 | 287 | /* FAKE globs in the symbol table cause weird bugs (#77810) */ |
96293f45 | 288 | SvFAKE_off(sv); |
93a17b20 | 289 | } |
79072805 | 290 | } |
8dc99089 | 291 | if (SvFAKE(sv) && !(PL_op->op_private & OPpALLOW_FAKE)) { |
2acc3314 | 292 | SV *newsv = sv_newmortal(); |
5cf4b255 | 293 | sv_setsv_flags(newsv, sv, 0); |
2acc3314 | 294 | SvFAKE_off(newsv); |
d8906c05 | 295 | sv = newsv; |
2acc3314 | 296 | } |
6f7909da FC |
297 | return sv; |
298 | } | |
299 | ||
300 | PP(pp_rv2gv) | |
301 | { | |
302 | dVAR; dSP; dTOPss; | |
303 | ||
304 | sv = S_rv2gv(aTHX_ | |
305 | sv, PL_op->op_private & OPpDEREF, | |
306 | PL_op->op_private & HINT_STRICT_REFS, | |
307 | ((PL_op->op_flags & OPf_SPECIAL) && !(PL_op->op_flags & OPf_MOD)) | |
308 | || PL_op->op_type == OP_READLINE | |
309 | ); | |
d8906c05 FC |
310 | if (PL_op->op_private & OPpLVAL_INTRO) |
311 | save_gp(MUTABLE_GV(sv), !(PL_op->op_flags & OPf_SPECIAL)); | |
312 | SETs(sv); | |
79072805 LW |
313 | RETURN; |
314 | } | |
315 | ||
dc3c76f8 NC |
316 | /* Helper function for pp_rv2sv and pp_rv2av */ |
317 | GV * | |
fe9845cc RB |
318 | Perl_softref2xv(pTHX_ SV *const sv, const char *const what, |
319 | const svtype type, SV ***spp) | |
dc3c76f8 NC |
320 | { |
321 | dVAR; | |
322 | GV *gv; | |
323 | ||
7918f24d NC |
324 | PERL_ARGS_ASSERT_SOFTREF2XV; |
325 | ||
dc3c76f8 NC |
326 | if (PL_op->op_private & HINT_STRICT_REFS) { |
327 | if (SvOK(sv)) | |
bf3d870f FC |
328 | Perl_die(aTHX_ S_no_symref_sv, sv, |
329 | (SvPOKp(sv) && SvCUR(sv)>32 ? "..." : ""), what); | |
dc3c76f8 NC |
330 | else |
331 | Perl_die(aTHX_ PL_no_usym, what); | |
332 | } | |
333 | if (!SvOK(sv)) { | |
fd1d9b5c | 334 | if ( |
c8fe3bdf | 335 | PL_op->op_flags & OPf_REF |
fd1d9b5c | 336 | ) |
dc3c76f8 NC |
337 | Perl_die(aTHX_ PL_no_usym, what); |
338 | if (ckWARN(WARN_UNINITIALIZED)) | |
339 | report_uninit(sv); | |
340 | if (type != SVt_PV && GIMME_V == G_ARRAY) { | |
341 | (*spp)--; | |
342 | return NULL; | |
343 | } | |
344 | **spp = &PL_sv_undef; | |
345 | return NULL; | |
346 | } | |
347 | if ((PL_op->op_flags & OPf_SPECIAL) && | |
348 | !(PL_op->op_flags & OPf_MOD)) | |
349 | { | |
77cb3b01 | 350 | if (!(gv = gv_fetchsv_nomg(sv, GV_ADDMG, type))) |
dc3c76f8 NC |
351 | { |
352 | **spp = &PL_sv_undef; | |
353 | return NULL; | |
354 | } | |
355 | } | |
356 | else { | |
77cb3b01 | 357 | gv = gv_fetchsv_nomg(sv, GV_ADD, type); |
dc3c76f8 NC |
358 | } |
359 | return gv; | |
360 | } | |
361 | ||
79072805 LW |
362 | PP(pp_rv2sv) |
363 | { | |
97aff369 | 364 | dVAR; dSP; dTOPss; |
c445ea15 | 365 | GV *gv = NULL; |
79072805 | 366 | |
9026059d | 367 | SvGETMAGIC(sv); |
ed6116ce | 368 | if (SvROK(sv)) { |
93d7320b DM |
369 | if (SvAMAGIC(sv)) { |
370 | sv = amagic_deref_call(sv, to_sv_amg); | |
93d7320b | 371 | } |
f5284f61 | 372 | |
ed6116ce | 373 | sv = SvRV(sv); |
79072805 LW |
374 | switch (SvTYPE(sv)) { |
375 | case SVt_PVAV: | |
376 | case SVt_PVHV: | |
377 | case SVt_PVCV: | |
cbae9b9f YST |
378 | case SVt_PVFM: |
379 | case SVt_PVIO: | |
cea2e8a9 | 380 | DIE(aTHX_ "Not a SCALAR reference"); |
42d0e0b7 | 381 | default: NOOP; |
79072805 LW |
382 | } |
383 | } | |
384 | else { | |
159b6efe | 385 | gv = MUTABLE_GV(sv); |
748a9306 | 386 | |
6e592b3a | 387 | if (!isGV_with_GP(gv)) { |
dc3c76f8 NC |
388 | gv = Perl_softref2xv(aTHX_ sv, "a SCALAR", SVt_PV, &sp); |
389 | if (!gv) | |
390 | RETURN; | |
463ee0b2 | 391 | } |
29c711a3 | 392 | sv = GvSVn(gv); |
a0d0e21e | 393 | } |
533c011a | 394 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
395 | if (PL_op->op_private & OPpLVAL_INTRO) { |
396 | if (cUNOP->op_first->op_type == OP_NULL) | |
159b6efe | 397 | sv = save_scalar(MUTABLE_GV(TOPs)); |
82d03984 RGS |
398 | else if (gv) |
399 | sv = save_scalar(gv); | |
400 | else | |
f1f66076 | 401 | Perl_croak(aTHX_ "%s", PL_no_localize_ref); |
82d03984 | 402 | } |
533c011a | 403 | else if (PL_op->op_private & OPpDEREF) |
9026059d | 404 | sv = vivify_ref(sv, PL_op->op_private & OPpDEREF); |
79072805 | 405 | } |
a0d0e21e | 406 | SETs(sv); |
79072805 LW |
407 | RETURN; |
408 | } | |
409 | ||
410 | PP(pp_av2arylen) | |
411 | { | |
97aff369 | 412 | dVAR; dSP; |
502c6561 | 413 | AV * const av = MUTABLE_AV(TOPs); |
02d85cc3 EB |
414 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
415 | if (lvalue) { | |
416 | SV ** const sv = Perl_av_arylen_p(aTHX_ MUTABLE_AV(av)); | |
417 | if (!*sv) { | |
418 | *sv = newSV_type(SVt_PVMG); | |
419 | sv_magic(*sv, MUTABLE_SV(av), PERL_MAGIC_arylen, NULL, 0); | |
420 | } | |
421 | SETs(*sv); | |
422 | } else { | |
e1dccc0d | 423 | SETs(sv_2mortal(newSViv(AvFILL(MUTABLE_AV(av))))); |
79072805 | 424 | } |
79072805 LW |
425 | RETURN; |
426 | } | |
427 | ||
a0d0e21e LW |
428 | PP(pp_pos) |
429 | { | |
2154eca7 | 430 | dVAR; dSP; dPOPss; |
8ec5e241 | 431 | |
78f9721b | 432 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
d14578b8 | 433 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV));/* Not TARG RT#67838 */ |
16eb5365 FC |
434 | sv_magic(ret, NULL, PERL_MAGIC_pos, NULL, 0); |
435 | LvTYPE(ret) = '.'; | |
436 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
2154eca7 | 437 | PUSHs(ret); /* no SvSETMAGIC */ |
a0d0e21e LW |
438 | RETURN; |
439 | } | |
440 | else { | |
a0d0e21e | 441 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
1b6737cc | 442 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
565764a8 | 443 | if (mg && mg->mg_len >= 0) { |
2154eca7 | 444 | dTARGET; |
a0ed51b3 | 445 | I32 i = mg->mg_len; |
7e2040f0 | 446 | if (DO_UTF8(sv)) |
a0ed51b3 | 447 | sv_pos_b2u(sv, &i); |
e1dccc0d | 448 | PUSHi(i); |
a0d0e21e LW |
449 | RETURN; |
450 | } | |
451 | } | |
452 | RETPUSHUNDEF; | |
453 | } | |
454 | } | |
455 | ||
79072805 LW |
456 | PP(pp_rv2cv) |
457 | { | |
97aff369 | 458 | dVAR; dSP; |
79072805 | 459 | GV *gv; |
1eced8f8 | 460 | HV *stash_unused; |
c445ea15 | 461 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
9da346da | 462 | ? GV_ADDMG |
d14578b8 KW |
463 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) |
464 | == OPpMAY_RETURN_CONSTANT) | |
c445ea15 AL |
465 | ? GV_ADD|GV_NOEXPAND |
466 | : GV_ADD; | |
4633a7c4 LW |
467 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
468 | /* (But not in defined().) */ | |
e26df76a | 469 | |
1eced8f8 | 470 | CV *cv = sv_2cv(TOPs, &stash_unused, &gv, flags); |
5a20ba3d | 471 | if (cv) NOOP; |
e26df76a | 472 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
ea726b52 | 473 | cv = MUTABLE_CV(gv); |
e26df76a | 474 | } |
07055b4c | 475 | else |
ea726b52 | 476 | cv = MUTABLE_CV(&PL_sv_undef); |
ad64d0ec | 477 | SETs(MUTABLE_SV(cv)); |
79072805 LW |
478 | RETURN; |
479 | } | |
480 | ||
c07a80fd | 481 | PP(pp_prototype) |
482 | { | |
97aff369 | 483 | dVAR; dSP; |
c07a80fd | 484 | CV *cv; |
485 | HV *stash; | |
486 | GV *gv; | |
fabdb6c0 | 487 | SV *ret = &PL_sv_undef; |
c07a80fd | 488 | |
6954f42f | 489 | if (SvGMAGICAL(TOPs)) SETs(sv_mortalcopy(TOPs)); |
b6c543e3 | 490 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
e3f73d4e | 491 | const char * s = SvPVX_const(TOPs); |
b6c543e3 | 492 | if (strnEQ(s, "CORE::", 6)) { |
be1b855b | 493 | const int code = keyword(s + 6, SvCUR(TOPs) - 6, 1); |
b66130dd | 494 | if (!code || code == -KEY_CORE) |
b17a0679 FC |
495 | DIE(aTHX_ "Can't find an opnumber for \"%"UTF8f"\"", |
496 | UTF8fARG(SvFLAGS(TOPs) & SVf_UTF8, SvCUR(TOPs)-6, s+6)); | |
4e338c21 | 497 | { |
b66130dd FC |
498 | SV * const sv = core_prototype(NULL, s + 6, code, NULL); |
499 | if (sv) ret = sv; | |
500 | } | |
b8c38f0a | 501 | goto set; |
b6c543e3 IZ |
502 | } |
503 | } | |
f2c0649b | 504 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 505 | if (cv && SvPOK(cv)) |
8fa6a409 FC |
506 | ret = newSVpvn_flags( |
507 | CvPROTO(cv), CvPROTOLEN(cv), SVs_TEMP | SvUTF8(cv) | |
508 | ); | |
b6c543e3 | 509 | set: |
c07a80fd | 510 | SETs(ret); |
511 | RETURN; | |
512 | } | |
513 | ||
a0d0e21e LW |
514 | PP(pp_anoncode) |
515 | { | |
97aff369 | 516 | dVAR; dSP; |
ea726b52 | 517 | CV *cv = MUTABLE_CV(PAD_SV(PL_op->op_targ)); |
a5f75d66 | 518 | if (CvCLONE(cv)) |
ad64d0ec | 519 | cv = MUTABLE_CV(sv_2mortal(MUTABLE_SV(cv_clone(cv)))); |
5f05dabc | 520 | EXTEND(SP,1); |
ad64d0ec | 521 | PUSHs(MUTABLE_SV(cv)); |
a0d0e21e LW |
522 | RETURN; |
523 | } | |
524 | ||
525 | PP(pp_srefgen) | |
79072805 | 526 | { |
97aff369 | 527 | dVAR; dSP; |
71be2cbc | 528 | *SP = refto(*SP); |
79072805 | 529 | RETURN; |
8ec5e241 | 530 | } |
a0d0e21e LW |
531 | |
532 | PP(pp_refgen) | |
533 | { | |
97aff369 | 534 | dVAR; dSP; dMARK; |
a0d0e21e | 535 | if (GIMME != G_ARRAY) { |
5f0b1d4e GS |
536 | if (++MARK <= SP) |
537 | *MARK = *SP; | |
538 | else | |
3280af22 | 539 | *MARK = &PL_sv_undef; |
5f0b1d4e GS |
540 | *MARK = refto(*MARK); |
541 | SP = MARK; | |
542 | RETURN; | |
a0d0e21e | 543 | } |
bbce6d69 | 544 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 545 | while (++MARK <= SP) |
546 | *MARK = refto(*MARK); | |
a0d0e21e | 547 | RETURN; |
79072805 LW |
548 | } |
549 | ||
76e3520e | 550 | STATIC SV* |
cea2e8a9 | 551 | S_refto(pTHX_ SV *sv) |
71be2cbc | 552 | { |
97aff369 | 553 | dVAR; |
71be2cbc | 554 | SV* rv; |
555 | ||
7918f24d NC |
556 | PERL_ARGS_ASSERT_REFTO; |
557 | ||
71be2cbc | 558 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { |
559 | if (LvTARGLEN(sv)) | |
68dc0745 | 560 | vivify_defelem(sv); |
561 | if (!(sv = LvTARG(sv))) | |
3280af22 | 562 | sv = &PL_sv_undef; |
0dd88869 | 563 | else |
b37c2d43 | 564 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 565 | } |
d8b46c1b | 566 | else if (SvTYPE(sv) == SVt_PVAV) { |
502c6561 NC |
567 | if (!AvREAL((const AV *)sv) && AvREIFY((const AV *)sv)) |
568 | av_reify(MUTABLE_AV(sv)); | |
d8b46c1b | 569 | SvTEMP_off(sv); |
b37c2d43 | 570 | SvREFCNT_inc_void_NN(sv); |
d8b46c1b | 571 | } |
f2933f5f DM |
572 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
573 | sv = newSVsv(sv); | |
71be2cbc | 574 | else { |
575 | SvTEMP_off(sv); | |
b37c2d43 | 576 | SvREFCNT_inc_void_NN(sv); |
71be2cbc | 577 | } |
578 | rv = sv_newmortal(); | |
4df7f6af | 579 | sv_upgrade(rv, SVt_IV); |
b162af07 | 580 | SvRV_set(rv, sv); |
71be2cbc | 581 | SvROK_on(rv); |
582 | return rv; | |
583 | } | |
584 | ||
79072805 LW |
585 | PP(pp_ref) |
586 | { | |
97aff369 | 587 | dVAR; dSP; dTARGET; |
1b6737cc | 588 | SV * const sv = POPs; |
f12c7020 | 589 | |
511ddbdf FC |
590 | SvGETMAGIC(sv); |
591 | if (!SvROK(sv)) | |
4633a7c4 | 592 | RETPUSHNO; |
79072805 | 593 | |
a15456de BF |
594 | (void)sv_ref(TARG,SvRV(sv),TRUE); |
595 | PUSHTARG; | |
79072805 LW |
596 | RETURN; |
597 | } | |
598 | ||
599 | PP(pp_bless) | |
600 | { | |
97aff369 | 601 | dVAR; dSP; |
463ee0b2 | 602 | HV *stash; |
79072805 | 603 | |
463ee0b2 | 604 | if (MAXARG == 1) |
dcdfe746 | 605 | { |
c2f922f1 | 606 | curstash: |
11faa288 | 607 | stash = CopSTASH(PL_curcop); |
dcdfe746 FC |
608 | if (SvTYPE(stash) != SVt_PVHV) |
609 | Perl_croak(aTHX_ "Attempt to bless into a freed package"); | |
610 | } | |
7b8d334a | 611 | else { |
1b6737cc | 612 | SV * const ssv = POPs; |
7b8d334a | 613 | STRLEN len; |
e1ec3a88 | 614 | const char *ptr; |
81689caa | 615 | |
c2f922f1 FC |
616 | if (!ssv) goto curstash; |
617 | if (!SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) | |
81689caa | 618 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
5c144d81 | 619 | ptr = SvPV_const(ssv,len); |
a2a5de95 NC |
620 | if (len == 0) |
621 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), | |
622 | "Explicit blessing to '' (assuming package main)"); | |
e69c50fe | 623 | stash = gv_stashpvn(ptr, len, GV_ADD|SvUTF8(ssv)); |
7b8d334a | 624 | } |
a0d0e21e | 625 | |
5d3fdfeb | 626 | (void)sv_bless(TOPs, stash); |
79072805 LW |
627 | RETURN; |
628 | } | |
629 | ||
fb73857a | 630 | PP(pp_gelem) |
631 | { | |
97aff369 | 632 | dVAR; dSP; |
b13b2135 | 633 | |
1b6737cc | 634 | SV *sv = POPs; |
a180b31a BF |
635 | STRLEN len; |
636 | const char * const elem = SvPV_const(sv, len); | |
159b6efe | 637 | GV * const gv = MUTABLE_GV(POPs); |
c445ea15 | 638 | SV * tmpRef = NULL; |
1b6737cc | 639 | |
c445ea15 | 640 | sv = NULL; |
c4ba80c3 NC |
641 | if (elem) { |
642 | /* elem will always be NUL terminated. */ | |
1b6737cc | 643 | const char * const second_letter = elem + 1; |
c4ba80c3 NC |
644 | switch (*elem) { |
645 | case 'A': | |
a180b31a | 646 | if (len == 5 && strEQ(second_letter, "RRAY")) |
e14698d8 | 647 | { |
ad64d0ec | 648 | tmpRef = MUTABLE_SV(GvAV(gv)); |
e14698d8 FC |
649 | if (tmpRef && !AvREAL((const AV *)tmpRef) |
650 | && AvREIFY((const AV *)tmpRef)) | |
651 | av_reify(MUTABLE_AV(tmpRef)); | |
652 | } | |
c4ba80c3 NC |
653 | break; |
654 | case 'C': | |
a180b31a | 655 | if (len == 4 && strEQ(second_letter, "ODE")) |
ad64d0ec | 656 | tmpRef = MUTABLE_SV(GvCVu(gv)); |
c4ba80c3 NC |
657 | break; |
658 | case 'F': | |
a180b31a | 659 | if (len == 10 && strEQ(second_letter, "ILEHANDLE")) { |
c4ba80c3 NC |
660 | /* finally deprecated in 5.8.0 */ |
661 | deprecate("*glob{FILEHANDLE}"); | |
ad64d0ec | 662 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
663 | } |
664 | else | |
a180b31a | 665 | if (len == 6 && strEQ(second_letter, "ORMAT")) |
ad64d0ec | 666 | tmpRef = MUTABLE_SV(GvFORM(gv)); |
c4ba80c3 NC |
667 | break; |
668 | case 'G': | |
a180b31a | 669 | if (len == 4 && strEQ(second_letter, "LOB")) |
ad64d0ec | 670 | tmpRef = MUTABLE_SV(gv); |
c4ba80c3 NC |
671 | break; |
672 | case 'H': | |
a180b31a | 673 | if (len == 4 && strEQ(second_letter, "ASH")) |
ad64d0ec | 674 | tmpRef = MUTABLE_SV(GvHV(gv)); |
c4ba80c3 NC |
675 | break; |
676 | case 'I': | |
a180b31a | 677 | if (*second_letter == 'O' && !elem[2] && len == 2) |
ad64d0ec | 678 | tmpRef = MUTABLE_SV(GvIOp(gv)); |
c4ba80c3 NC |
679 | break; |
680 | case 'N': | |
a180b31a | 681 | if (len == 4 && strEQ(second_letter, "AME")) |
a663657d | 682 | sv = newSVhek(GvNAME_HEK(gv)); |
c4ba80c3 NC |
683 | break; |
684 | case 'P': | |
a180b31a | 685 | if (len == 7 && strEQ(second_letter, "ACKAGE")) { |
7fa3a4ab NC |
686 | const HV * const stash = GvSTASH(gv); |
687 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 688 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
689 | } |
690 | break; | |
691 | case 'S': | |
a180b31a | 692 | if (len == 6 && strEQ(second_letter, "CALAR")) |
f9d52e31 | 693 | tmpRef = GvSVn(gv); |
c4ba80c3 | 694 | break; |
39b99f21 | 695 | } |
fb73857a | 696 | } |
76e3520e GS |
697 | if (tmpRef) |
698 | sv = newRV(tmpRef); | |
fb73857a | 699 | if (sv) |
700 | sv_2mortal(sv); | |
701 | else | |
3280af22 | 702 | sv = &PL_sv_undef; |
fb73857a | 703 | XPUSHs(sv); |
704 | RETURN; | |
705 | } | |
706 | ||
a0d0e21e | 707 | /* Pattern matching */ |
79072805 | 708 | |
a0d0e21e | 709 | PP(pp_study) |
79072805 | 710 | { |
97aff369 | 711 | dVAR; dSP; dPOPss; |
a0d0e21e LW |
712 | STRLEN len; |
713 | ||
1fa930f2 | 714 | (void)SvPV(sv, len); |
bc9a5256 | 715 | if (len == 0 || len > I32_MAX || !SvPOK(sv) || SvUTF8(sv) || SvVALID(sv)) { |
32f0ea87 | 716 | /* Historically, study was skipped in these cases. */ |
a4f4e906 NC |
717 | RETPUSHNO; |
718 | } | |
719 | ||
a58a85fa | 720 | /* Make study a no-op. It's no longer useful and its existence |
32f0ea87 | 721 | complicates matters elsewhere. */ |
1e422769 | 722 | RETPUSHYES; |
79072805 LW |
723 | } |
724 | ||
a0d0e21e | 725 | PP(pp_trans) |
79072805 | 726 | { |
97aff369 | 727 | dVAR; dSP; dTARG; |
a0d0e21e LW |
728 | SV *sv; |
729 | ||
533c011a | 730 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 731 | sv = POPs; |
59f00321 RGS |
732 | else if (PL_op->op_private & OPpTARGET_MY) |
733 | sv = GETTARGET; | |
79072805 | 734 | else { |
54b9620d | 735 | sv = DEFSV; |
a0d0e21e | 736 | EXTEND(SP,1); |
79072805 | 737 | } |
bb16bae8 | 738 | if(PL_op->op_type == OP_TRANSR) { |
290797f7 FC |
739 | STRLEN len; |
740 | const char * const pv = SvPV(sv,len); | |
741 | SV * const newsv = newSVpvn_flags(pv, len, SVs_TEMP|SvUTF8(sv)); | |
bb16bae8 | 742 | do_trans(newsv); |
290797f7 | 743 | PUSHs(newsv); |
bb16bae8 | 744 | } |
5bbe7184 FC |
745 | else { |
746 | TARG = sv_newmortal(); | |
747 | PUSHi(do_trans(sv)); | |
748 | } | |
a0d0e21e | 749 | RETURN; |
79072805 LW |
750 | } |
751 | ||
a0d0e21e | 752 | /* Lvalue operators. */ |
79072805 | 753 | |
81745e4e NC |
754 | static void |
755 | S_do_chomp(pTHX_ SV *retval, SV *sv, bool chomping) | |
756 | { | |
757 | dVAR; | |
758 | STRLEN len; | |
759 | char *s; | |
760 | ||
761 | PERL_ARGS_ASSERT_DO_CHOMP; | |
762 | ||
763 | if (chomping && (RsSNARF(PL_rs) || RsRECORD(PL_rs))) | |
764 | return; | |
765 | if (SvTYPE(sv) == SVt_PVAV) { | |
766 | I32 i; | |
767 | AV *const av = MUTABLE_AV(sv); | |
768 | const I32 max = AvFILL(av); | |
769 | ||
770 | for (i = 0; i <= max; i++) { | |
771 | sv = MUTABLE_SV(av_fetch(av, i, FALSE)); | |
772 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) | |
773 | do_chomp(retval, sv, chomping); | |
774 | } | |
775 | return; | |
776 | } | |
777 | else if (SvTYPE(sv) == SVt_PVHV) { | |
778 | HV* const hv = MUTABLE_HV(sv); | |
779 | HE* entry; | |
780 | (void)hv_iterinit(hv); | |
781 | while ((entry = hv_iternext(hv))) | |
782 | do_chomp(retval, hv_iterval(hv,entry), chomping); | |
783 | return; | |
784 | } | |
785 | else if (SvREADONLY(sv)) { | |
cb077ed2 | 786 | Perl_croak_no_modify(); |
81745e4e | 787 | } |
e3918bb7 FC |
788 | else if (SvIsCOW(sv)) { |
789 | sv_force_normal_flags(sv, 0); | |
790 | } | |
81745e4e NC |
791 | |
792 | if (PL_encoding) { | |
793 | if (!SvUTF8(sv)) { | |
794 | /* XXX, here sv is utf8-ized as a side-effect! | |
795 | If encoding.pm is used properly, almost string-generating | |
796 | operations, including literal strings, chr(), input data, etc. | |
797 | should have been utf8-ized already, right? | |
798 | */ | |
799 | sv_recode_to_utf8(sv, PL_encoding); | |
800 | } | |
801 | } | |
802 | ||
803 | s = SvPV(sv, len); | |
804 | if (chomping) { | |
805 | char *temp_buffer = NULL; | |
806 | SV *svrecode = NULL; | |
807 | ||
808 | if (s && len) { | |
809 | s += --len; | |
810 | if (RsPARA(PL_rs)) { | |
811 | if (*s != '\n') | |
812 | goto nope; | |
813 | ++SvIVX(retval); | |
814 | while (len && s[-1] == '\n') { | |
815 | --len; | |
816 | --s; | |
817 | ++SvIVX(retval); | |
818 | } | |
819 | } | |
820 | else { | |
821 | STRLEN rslen, rs_charlen; | |
822 | const char *rsptr = SvPV_const(PL_rs, rslen); | |
823 | ||
824 | rs_charlen = SvUTF8(PL_rs) | |
825 | ? sv_len_utf8(PL_rs) | |
826 | : rslen; | |
827 | ||
828 | if (SvUTF8(PL_rs) != SvUTF8(sv)) { | |
829 | /* Assumption is that rs is shorter than the scalar. */ | |
830 | if (SvUTF8(PL_rs)) { | |
831 | /* RS is utf8, scalar is 8 bit. */ | |
832 | bool is_utf8 = TRUE; | |
833 | temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, | |
834 | &rslen, &is_utf8); | |
835 | if (is_utf8) { | |
836 | /* Cannot downgrade, therefore cannot possibly match | |
837 | */ | |
838 | assert (temp_buffer == rsptr); | |
839 | temp_buffer = NULL; | |
840 | goto nope; | |
841 | } | |
842 | rsptr = temp_buffer; | |
843 | } | |
844 | else if (PL_encoding) { | |
845 | /* RS is 8 bit, encoding.pm is used. | |
846 | * Do not recode PL_rs as a side-effect. */ | |
847 | svrecode = newSVpvn(rsptr, rslen); | |
848 | sv_recode_to_utf8(svrecode, PL_encoding); | |
849 | rsptr = SvPV_const(svrecode, rslen); | |
850 | rs_charlen = sv_len_utf8(svrecode); | |
851 | } | |
852 | else { | |
853 | /* RS is 8 bit, scalar is utf8. */ | |
854 | temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); | |
855 | rsptr = temp_buffer; | |
856 | } | |
857 | } | |
858 | if (rslen == 1) { | |
859 | if (*s != *rsptr) | |
860 | goto nope; | |
861 | ++SvIVX(retval); | |
862 | } | |
863 | else { | |
864 | if (len < rslen - 1) | |
865 | goto nope; | |
866 | len -= rslen - 1; | |
867 | s -= rslen - 1; | |
868 | if (memNE(s, rsptr, rslen)) | |
869 | goto nope; | |
870 | SvIVX(retval) += rs_charlen; | |
871 | } | |
872 | } | |
fbac7ddf | 873 | s = SvPV_force_nomg_nolen(sv); |
81745e4e NC |
874 | SvCUR_set(sv, len); |
875 | *SvEND(sv) = '\0'; | |
876 | SvNIOK_off(sv); | |
877 | SvSETMAGIC(sv); | |
878 | } | |
879 | nope: | |
880 | ||
881 | SvREFCNT_dec(svrecode); | |
882 | ||
883 | Safefree(temp_buffer); | |
884 | } else { | |
885 | if (len && !SvPOK(sv)) | |
886 | s = SvPV_force_nomg(sv, len); | |
887 | if (DO_UTF8(sv)) { | |
888 | if (s && len) { | |
889 | char * const send = s + len; | |
890 | char * const start = s; | |
891 | s = send - 1; | |
892 | while (s > start && UTF8_IS_CONTINUATION(*s)) | |
893 | s--; | |
894 | if (is_utf8_string((U8*)s, send - s)) { | |
895 | sv_setpvn(retval, s, send - s); | |
896 | *s = '\0'; | |
897 | SvCUR_set(sv, s - start); | |
898 | SvNIOK_off(sv); | |
899 | SvUTF8_on(retval); | |
900 | } | |
901 | } | |
902 | else | |
903 | sv_setpvs(retval, ""); | |
904 | } | |
905 | else if (s && len) { | |
906 | s += --len; | |
907 | sv_setpvn(retval, s, 1); | |
908 | *s = '\0'; | |
909 | SvCUR_set(sv, len); | |
910 | SvUTF8_off(sv); | |
911 | SvNIOK_off(sv); | |
912 | } | |
913 | else | |
914 | sv_setpvs(retval, ""); | |
915 | SvSETMAGIC(sv); | |
916 | } | |
917 | } | |
918 | ||
a0d0e21e LW |
919 | PP(pp_schop) |
920 | { | |
97aff369 | 921 | dVAR; dSP; dTARGET; |
fa54efae NC |
922 | const bool chomping = PL_op->op_type == OP_SCHOMP; |
923 | ||
924 | if (chomping) | |
925 | sv_setiv(TARG, 0); | |
926 | do_chomp(TARG, TOPs, chomping); | |
a0d0e21e LW |
927 | SETTARG; |
928 | RETURN; | |
79072805 LW |
929 | } |
930 | ||
a0d0e21e | 931 | PP(pp_chop) |
79072805 | 932 | { |
97aff369 | 933 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
fa54efae | 934 | const bool chomping = PL_op->op_type == OP_CHOMP; |
8ec5e241 | 935 | |
fa54efae NC |
936 | if (chomping) |
937 | sv_setiv(TARG, 0); | |
20cf1f79 | 938 | while (MARK < SP) |
fa54efae | 939 | do_chomp(TARG, *++MARK, chomping); |
20cf1f79 NC |
940 | SP = ORIGMARK; |
941 | XPUSHTARG; | |
a0d0e21e | 942 | RETURN; |
79072805 LW |
943 | } |
944 | ||
a0d0e21e LW |
945 | PP(pp_undef) |
946 | { | |
97aff369 | 947 | dVAR; dSP; |
a0d0e21e LW |
948 | SV *sv; |
949 | ||
533c011a | 950 | if (!PL_op->op_private) { |
774d564b | 951 | EXTEND(SP, 1); |
a0d0e21e | 952 | RETPUSHUNDEF; |
774d564b | 953 | } |
79072805 | 954 | |
a0d0e21e LW |
955 | sv = POPs; |
956 | if (!sv) | |
957 | RETPUSHUNDEF; | |
85e6fe83 | 958 | |
765f542d | 959 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
85e6fe83 | 960 | |
a0d0e21e LW |
961 | switch (SvTYPE(sv)) { |
962 | case SVt_NULL: | |
963 | break; | |
964 | case SVt_PVAV: | |
60edcf09 | 965 | av_undef(MUTABLE_AV(sv)); |
a0d0e21e LW |
966 | break; |
967 | case SVt_PVHV: | |
60edcf09 | 968 | hv_undef(MUTABLE_HV(sv)); |
a0d0e21e LW |
969 | break; |
970 | case SVt_PVCV: | |
a2a5de95 | 971 | if (cv_const_sv((const CV *)sv)) |
714cd18f BF |
972 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), |
973 | "Constant subroutine %"SVf" undefined", | |
974 | SVfARG(CvANON((const CV *)sv) | |
975 | ? newSVpvs_flags("(anonymous)", SVs_TEMP) | |
bdbfc51a FC |
976 | : sv_2mortal(newSVhek( |
977 | CvNAMED(sv) | |
978 | ? CvNAME_HEK((CV *)sv) | |
979 | : GvENAME_HEK(CvGV((const CV *)sv)) | |
980 | )) | |
981 | )); | |
5f66b61c | 982 | /* FALLTHROUGH */ |
9607fc9c | 983 | case SVt_PVFM: |
6fc92669 GS |
984 | { |
985 | /* let user-undef'd sub keep its identity */ | |
ea726b52 | 986 | GV* const gv = CvGV((const CV *)sv); |
b290562e FC |
987 | HEK * const hek = CvNAME_HEK((CV *)sv); |
988 | if (hek) share_hek_hek(hek); | |
ea726b52 | 989 | cv_undef(MUTABLE_CV(sv)); |
b290562e FC |
990 | if (gv) CvGV_set(MUTABLE_CV(sv), gv); |
991 | else if (hek) { | |
992 | SvANY((CV *)sv)->xcv_gv_u.xcv_hek = hek; | |
993 | CvNAMED_on(sv); | |
994 | } | |
6fc92669 | 995 | } |
a0d0e21e | 996 | break; |
8e07c86e | 997 | case SVt_PVGV: |
bc1df6c2 FC |
998 | assert(isGV_with_GP(sv)); |
999 | assert(!SvFAKE(sv)); | |
1000 | { | |
20408e3c | 1001 | GP *gp; |
dd69841b BB |
1002 | HV *stash; |
1003 | ||
dd69841b | 1004 | /* undef *Pkg::meth_name ... */ |
e530fb81 FC |
1005 | bool method_changed |
1006 | = GvCVu((const GV *)sv) && (stash = GvSTASH((const GV *)sv)) | |
1007 | && HvENAME_get(stash); | |
1008 | /* undef *Foo:: */ | |
1009 | if((stash = GvHV((const GV *)sv))) { | |
1010 | if(HvENAME_get(stash)) | |
1011 | SvREFCNT_inc_simple_void_NN(sv_2mortal((SV *)stash)); | |
1012 | else stash = NULL; | |
1013 | } | |
dd69841b | 1014 | |
159b6efe | 1015 | gp_free(MUTABLE_GV(sv)); |
a02a5408 | 1016 | Newxz(gp, 1, GP); |
c43ae56f | 1017 | GvGP_set(sv, gp_ref(gp)); |
561b68a9 | 1018 | GvSV(sv) = newSV(0); |
57843af0 | 1019 | GvLINE(sv) = CopLINE(PL_curcop); |
159b6efe | 1020 | GvEGV(sv) = MUTABLE_GV(sv); |
20408e3c | 1021 | GvMULTI_on(sv); |
e530fb81 FC |
1022 | |
1023 | if(stash) | |
afdbe55d | 1024 | mro_package_moved(NULL, stash, (const GV *)sv, 0); |
e530fb81 FC |
1025 | stash = NULL; |
1026 | /* undef *Foo::ISA */ | |
1027 | if( strEQ(GvNAME((const GV *)sv), "ISA") | |
1028 | && (stash = GvSTASH((const GV *)sv)) | |
1029 | && (method_changed || HvENAME(stash)) ) | |
1030 | mro_isa_changed_in(stash); | |
1031 | else if(method_changed) | |
1032 | mro_method_changed_in( | |
da9043f5 | 1033 | GvSTASH((const GV *)sv) |
e530fb81 FC |
1034 | ); |
1035 | ||
6e592b3a | 1036 | break; |
20408e3c | 1037 | } |
a0d0e21e | 1038 | default: |
b15aece3 | 1039 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 1040 | SvPV_free(sv); |
c445ea15 | 1041 | SvPV_set(sv, NULL); |
4633a7c4 | 1042 | SvLEN_set(sv, 0); |
a0d0e21e | 1043 | } |
0c34ef67 | 1044 | SvOK_off(sv); |
4633a7c4 | 1045 | SvSETMAGIC(sv); |
79072805 | 1046 | } |
a0d0e21e LW |
1047 | |
1048 | RETPUSHUNDEF; | |
79072805 LW |
1049 | } |
1050 | ||
a0d0e21e LW |
1051 | PP(pp_postinc) |
1052 | { | |
97aff369 | 1053 | dVAR; dSP; dTARGET; |
c22c99bc FC |
1054 | const bool inc = |
1055 | PL_op->op_type == OP_POSTINC || PL_op->op_type == OP_I_POSTINC; | |
60092ce4 | 1056 | if (SvTYPE(TOPs) >= SVt_PVAV || (isGV_with_GP(TOPs) && !SvFAKE(TOPs))) |
cb077ed2 | 1057 | Perl_croak_no_modify(); |
7dcb9b98 DM |
1058 | if (SvROK(TOPs)) |
1059 | TARG = sv_newmortal(); | |
a0d0e21e | 1060 | sv_setsv(TARG, TOPs); |
4bac9ae4 | 1061 | if (!SvREADONLY(TOPs) && !SvGMAGICAL(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
c22c99bc | 1062 | && SvIVX(TOPs) != (inc ? IV_MAX : IV_MIN)) |
55497cff | 1063 | { |
c22c99bc | 1064 | SvIV_set(TOPs, SvIVX(TOPs) + (inc ? 1 : -1)); |
55497cff | 1065 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 | 1066 | } |
c22c99bc | 1067 | else if (inc) |
6f1401dc | 1068 | sv_inc_nomg(TOPs); |
c22c99bc | 1069 | else sv_dec_nomg(TOPs); |
a0d0e21e | 1070 | SvSETMAGIC(TOPs); |
1e54a23f | 1071 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
c22c99bc | 1072 | if (inc && !SvOK(TARG)) |
a0d0e21e LW |
1073 | sv_setiv(TARG, 0); |
1074 | SETs(TARG); | |
1075 | return NORMAL; | |
1076 | } | |
79072805 | 1077 | |
a0d0e21e LW |
1078 | /* Ordinary operators. */ |
1079 | ||
1080 | PP(pp_pow) | |
1081 | { | |
800401ee | 1082 | dVAR; dSP; dATARGET; SV *svl, *svr; |
58d76dfd | 1083 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
1084 | bool is_int = 0; |
1085 | #endif | |
6f1401dc DM |
1086 | tryAMAGICbin_MG(pow_amg, AMGf_assign|AMGf_numeric); |
1087 | svr = TOPs; | |
1088 | svl = TOPm1s; | |
52a96ae6 HS |
1089 | #ifdef PERL_PRESERVE_IVUV |
1090 | /* For integer to integer power, we do the calculation by hand wherever | |
1091 | we're sure it is safe; otherwise we call pow() and try to convert to | |
1092 | integer afterwards. */ | |
01f91bf2 | 1093 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
900658e3 PF |
1094 | UV power; |
1095 | bool baseuok; | |
1096 | UV baseuv; | |
1097 | ||
800401ee JH |
1098 | if (SvUOK(svr)) { |
1099 | power = SvUVX(svr); | |
900658e3 | 1100 | } else { |
800401ee | 1101 | const IV iv = SvIVX(svr); |
900658e3 PF |
1102 | if (iv >= 0) { |
1103 | power = iv; | |
1104 | } else { | |
1105 | goto float_it; /* Can't do negative powers this way. */ | |
1106 | } | |
1107 | } | |
1108 | ||
800401ee | 1109 | baseuok = SvUOK(svl); |
900658e3 | 1110 | if (baseuok) { |
800401ee | 1111 | baseuv = SvUVX(svl); |
900658e3 | 1112 | } else { |
800401ee | 1113 | const IV iv = SvIVX(svl); |
900658e3 PF |
1114 | if (iv >= 0) { |
1115 | baseuv = iv; | |
1116 | baseuok = TRUE; /* effectively it's a UV now */ | |
1117 | } else { | |
1118 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
1119 | } | |
1120 | } | |
52a96ae6 HS |
1121 | /* now we have integer ** positive integer. */ |
1122 | is_int = 1; | |
1123 | ||
1124 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 1125 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 1126 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
1127 | The logic here will work for any base (even non-integer |
1128 | bases) but it can be less accurate than | |
1129 | pow (base,power) or exp (power * log (base)) when the | |
1130 | intermediate values start to spill out of the mantissa. | |
1131 | With powers of 2 we know this can't happen. | |
1132 | And powers of 2 are the favourite thing for perl | |
1133 | programmers to notice ** not doing what they mean. */ | |
1134 | NV result = 1.0; | |
1135 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
1136 | |
1137 | if (power & 1) { | |
1138 | result *= base; | |
1139 | } | |
1140 | while (power >>= 1) { | |
1141 | base *= base; | |
1142 | if (power & 1) { | |
1143 | result *= base; | |
1144 | } | |
1145 | } | |
58d76dfd JH |
1146 | SP--; |
1147 | SETn( result ); | |
6f1401dc | 1148 | SvIV_please_nomg(svr); |
58d76dfd | 1149 | RETURN; |
52a96ae6 | 1150 | } else { |
eb578fdb KW |
1151 | unsigned int highbit = 8 * sizeof(UV); |
1152 | unsigned int diff = 8 * sizeof(UV); | |
900658e3 PF |
1153 | while (diff >>= 1) { |
1154 | highbit -= diff; | |
1155 | if (baseuv >> highbit) { | |
1156 | highbit += diff; | |
1157 | } | |
52a96ae6 HS |
1158 | } |
1159 | /* we now have baseuv < 2 ** highbit */ | |
1160 | if (power * highbit <= 8 * sizeof(UV)) { | |
1161 | /* result will definitely fit in UV, so use UV math | |
1162 | on same algorithm as above */ | |
eb578fdb KW |
1163 | UV result = 1; |
1164 | UV base = baseuv; | |
f2338a2e | 1165 | const bool odd_power = cBOOL(power & 1); |
900658e3 PF |
1166 | if (odd_power) { |
1167 | result *= base; | |
1168 | } | |
1169 | while (power >>= 1) { | |
1170 | base *= base; | |
1171 | if (power & 1) { | |
52a96ae6 | 1172 | result *= base; |
52a96ae6 HS |
1173 | } |
1174 | } | |
1175 | SP--; | |
0615a994 | 1176 | if (baseuok || !odd_power) |
52a96ae6 HS |
1177 | /* answer is positive */ |
1178 | SETu( result ); | |
1179 | else if (result <= (UV)IV_MAX) | |
1180 | /* answer negative, fits in IV */ | |
1181 | SETi( -(IV)result ); | |
1182 | else if (result == (UV)IV_MIN) | |
1183 | /* 2's complement assumption: special case IV_MIN */ | |
1184 | SETi( IV_MIN ); | |
1185 | else | |
1186 | /* answer negative, doesn't fit */ | |
1187 | SETn( -(NV)result ); | |
1188 | RETURN; | |
1189 | } | |
1190 | } | |
58d76dfd | 1191 | } |
52a96ae6 | 1192 | float_it: |
58d76dfd | 1193 | #endif |
a0d0e21e | 1194 | { |
6f1401dc DM |
1195 | NV right = SvNV_nomg(svr); |
1196 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1197 | (void)POPs; |
3aaeb624 JA |
1198 | |
1199 | #if defined(USE_LONG_DOUBLE) && defined(HAS_AIX_POWL_NEG_BASE_BUG) | |
1200 | /* | |
1201 | We are building perl with long double support and are on an AIX OS | |
1202 | afflicted with a powl() function that wrongly returns NaNQ for any | |
1203 | negative base. This was reported to IBM as PMR #23047-379 on | |
1204 | 03/06/2006. The problem exists in at least the following versions | |
1205 | of AIX and the libm fileset, and no doubt others as well: | |
1206 | ||
1207 | AIX 4.3.3-ML10 bos.adt.libm 4.3.3.50 | |
1208 | AIX 5.1.0-ML04 bos.adt.libm 5.1.0.29 | |
1209 | AIX 5.2.0 bos.adt.libm 5.2.0.85 | |
1210 | ||
1211 | So, until IBM fixes powl(), we provide the following workaround to | |
1212 | handle the problem ourselves. Our logic is as follows: for | |
1213 | negative bases (left), we use fmod(right, 2) to check if the | |
1214 | exponent is an odd or even integer: | |
1215 | ||
1216 | - if odd, powl(left, right) == -powl(-left, right) | |
1217 | - if even, powl(left, right) == powl(-left, right) | |
1218 | ||
1219 | If the exponent is not an integer, the result is rightly NaNQ, so | |
1220 | we just return that (as NV_NAN). | |
1221 | */ | |
1222 | ||
1223 | if (left < 0.0) { | |
1224 | NV mod2 = Perl_fmod( right, 2.0 ); | |
1225 | if (mod2 == 1.0 || mod2 == -1.0) { /* odd integer */ | |
1226 | SETn( -Perl_pow( -left, right) ); | |
1227 | } else if (mod2 == 0.0) { /* even integer */ | |
1228 | SETn( Perl_pow( -left, right) ); | |
1229 | } else { /* fractional power */ | |
1230 | SETn( NV_NAN ); | |
1231 | } | |
1232 | } else { | |
1233 | SETn( Perl_pow( left, right) ); | |
1234 | } | |
1235 | #else | |
52a96ae6 | 1236 | SETn( Perl_pow( left, right) ); |
3aaeb624 JA |
1237 | #endif /* HAS_AIX_POWL_NEG_BASE_BUG */ |
1238 | ||
52a96ae6 HS |
1239 | #ifdef PERL_PRESERVE_IVUV |
1240 | if (is_int) | |
6f1401dc | 1241 | SvIV_please_nomg(svr); |
52a96ae6 HS |
1242 | #endif |
1243 | RETURN; | |
93a17b20 | 1244 | } |
a0d0e21e LW |
1245 | } |
1246 | ||
1247 | PP(pp_multiply) | |
1248 | { | |
800401ee | 1249 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1250 | tryAMAGICbin_MG(mult_amg, AMGf_assign|AMGf_numeric); |
1251 | svr = TOPs; | |
1252 | svl = TOPm1s; | |
28e5dec8 | 1253 | #ifdef PERL_PRESERVE_IVUV |
01f91bf2 | 1254 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1255 | /* Unless the left argument is integer in range we are going to have to |
1256 | use NV maths. Hence only attempt to coerce the right argument if | |
1257 | we know the left is integer. */ | |
1258 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1259 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1260 | bool auvok = SvUOK(svl); |
1261 | bool buvok = SvUOK(svr); | |
28e5dec8 JH |
1262 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); |
1263 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1264 | UV alow; | |
1265 | UV ahigh; | |
1266 | UV blow; | |
1267 | UV bhigh; | |
1268 | ||
1269 | if (auvok) { | |
800401ee | 1270 | alow = SvUVX(svl); |
28e5dec8 | 1271 | } else { |
800401ee | 1272 | const IV aiv = SvIVX(svl); |
28e5dec8 JH |
1273 | if (aiv >= 0) { |
1274 | alow = aiv; | |
1275 | auvok = TRUE; /* effectively it's a UV now */ | |
1276 | } else { | |
1277 | alow = -aiv; /* abs, auvok == false records sign */ | |
1278 | } | |
1279 | } | |
1280 | if (buvok) { | |
800401ee | 1281 | blow = SvUVX(svr); |
28e5dec8 | 1282 | } else { |
800401ee | 1283 | const IV biv = SvIVX(svr); |
28e5dec8 JH |
1284 | if (biv >= 0) { |
1285 | blow = biv; | |
1286 | buvok = TRUE; /* effectively it's a UV now */ | |
1287 | } else { | |
1288 | blow = -biv; /* abs, buvok == false records sign */ | |
1289 | } | |
1290 | } | |
1291 | ||
1292 | /* If this does sign extension on unsigned it's time for plan B */ | |
1293 | ahigh = alow >> (4 * sizeof (UV)); | |
1294 | alow &= botmask; | |
1295 | bhigh = blow >> (4 * sizeof (UV)); | |
1296 | blow &= botmask; | |
1297 | if (ahigh && bhigh) { | |
6f207bd3 | 1298 | NOOP; |
28e5dec8 JH |
1299 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1300 | which is overflow. Drop to NVs below. */ | |
1301 | } else if (!ahigh && !bhigh) { | |
1302 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1303 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1304 | const UV product = alow * blow; |
28e5dec8 JH |
1305 | if (auvok == buvok) { |
1306 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1307 | SP--; | |
1308 | SETu( product ); | |
1309 | RETURN; | |
1310 | } else if (product <= (UV)IV_MIN) { | |
1311 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1312 | /* -ve result, which could overflow an IV */ | |
1313 | SP--; | |
25716404 | 1314 | SETi( -(IV)product ); |
28e5dec8 JH |
1315 | RETURN; |
1316 | } /* else drop to NVs below. */ | |
1317 | } else { | |
1318 | /* One operand is large, 1 small */ | |
1319 | UV product_middle; | |
1320 | if (bhigh) { | |
1321 | /* swap the operands */ | |
1322 | ahigh = bhigh; | |
1323 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1324 | blow = alow; | |
1325 | alow = bhigh; | |
1326 | } | |
1327 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1328 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1329 | product_middle = ahigh * blow; | |
1330 | if (!(product_middle & topmask)) { | |
1331 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1332 | UV product_low; | |
1333 | product_middle <<= (4 * sizeof (UV)); | |
1334 | product_low = alow * blow; | |
1335 | ||
1336 | /* as for pp_add, UV + something mustn't get smaller. | |
1337 | IIRC ANSI mandates this wrapping *behaviour* for | |
1338 | unsigned whatever the actual representation*/ | |
1339 | product_low += product_middle; | |
1340 | if (product_low >= product_middle) { | |
1341 | /* didn't overflow */ | |
1342 | if (auvok == buvok) { | |
1343 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1344 | SP--; | |
1345 | SETu( product_low ); | |
1346 | RETURN; | |
1347 | } else if (product_low <= (UV)IV_MIN) { | |
1348 | /* 2s complement assumption again */ | |
1349 | /* -ve result, which could overflow an IV */ | |
1350 | SP--; | |
25716404 | 1351 | SETi( -(IV)product_low ); |
28e5dec8 JH |
1352 | RETURN; |
1353 | } /* else drop to NVs below. */ | |
1354 | } | |
1355 | } /* product_middle too large */ | |
1356 | } /* ahigh && bhigh */ | |
800401ee JH |
1357 | } /* SvIOK(svl) */ |
1358 | } /* SvIOK(svr) */ | |
28e5dec8 | 1359 | #endif |
a0d0e21e | 1360 | { |
6f1401dc DM |
1361 | NV right = SvNV_nomg(svr); |
1362 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1363 | (void)POPs; |
a0d0e21e LW |
1364 | SETn( left * right ); |
1365 | RETURN; | |
79072805 | 1366 | } |
a0d0e21e LW |
1367 | } |
1368 | ||
1369 | PP(pp_divide) | |
1370 | { | |
800401ee | 1371 | dVAR; dSP; dATARGET; SV *svl, *svr; |
6f1401dc DM |
1372 | tryAMAGICbin_MG(div_amg, AMGf_assign|AMGf_numeric); |
1373 | svr = TOPs; | |
1374 | svl = TOPm1s; | |
5479d192 | 1375 | /* Only try to do UV divide first |
68795e93 | 1376 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1377 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1378 | to preserve)) | |
1379 | The assumption is that it is better to use floating point divide | |
1380 | whenever possible, only doing integer divide first if we can't be sure. | |
1381 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1382 | can be too large to preserve, so don't need to compile the code to | |
1383 | test the size of UVs. */ | |
1384 | ||
a0d0e21e | 1385 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1386 | # define PERL_TRY_UV_DIVIDE |
1387 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1388 | #else |
5479d192 NC |
1389 | # ifdef PERL_PRESERVE_IVUV |
1390 | # ifndef NV_PRESERVES_UV | |
1391 | # define PERL_TRY_UV_DIVIDE | |
1392 | # endif | |
1393 | # endif | |
a0d0e21e | 1394 | #endif |
5479d192 NC |
1395 | |
1396 | #ifdef PERL_TRY_UV_DIVIDE | |
01f91bf2 | 1397 | if (SvIV_please_nomg(svr) && SvIV_please_nomg(svl)) { |
800401ee JH |
1398 | bool left_non_neg = SvUOK(svl); |
1399 | bool right_non_neg = SvUOK(svr); | |
5479d192 NC |
1400 | UV left; |
1401 | UV right; | |
1402 | ||
1403 | if (right_non_neg) { | |
800401ee | 1404 | right = SvUVX(svr); |
5479d192 NC |
1405 | } |
1406 | else { | |
800401ee | 1407 | const IV biv = SvIVX(svr); |
5479d192 NC |
1408 | if (biv >= 0) { |
1409 | right = biv; | |
1410 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1411 | } | |
1412 | else { | |
1413 | right = -biv; | |
1414 | } | |
1415 | } | |
1416 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1417 | warning before dieing, hence this test goes here. | |
1418 | If it were immediately before the second SvIV_please, then | |
1419 | DIE() would be invoked before left was even inspected, so | |
486ec47a | 1420 | no inspection would give no warning. */ |
5479d192 NC |
1421 | if (right == 0) |
1422 | DIE(aTHX_ "Illegal division by zero"); | |
1423 | ||
1424 | if (left_non_neg) { | |
800401ee | 1425 | left = SvUVX(svl); |
5479d192 NC |
1426 | } |
1427 | else { | |
800401ee | 1428 | const IV aiv = SvIVX(svl); |
5479d192 NC |
1429 | if (aiv >= 0) { |
1430 | left = aiv; | |
1431 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1432 | } | |
1433 | else { | |
1434 | left = -aiv; | |
1435 | } | |
1436 | } | |
1437 | ||
1438 | if (left >= right | |
1439 | #ifdef SLOPPYDIVIDE | |
1440 | /* For sloppy divide we always attempt integer division. */ | |
1441 | #else | |
1442 | /* Otherwise we only attempt it if either or both operands | |
1443 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1444 | we fall through to the NV divide code below. However, |
1445 | as left >= right to ensure integer result here, we know that | |
1446 | we can skip the test on the right operand - right big | |
1447 | enough not to be preserved can't get here unless left is | |
1448 | also too big. */ | |
1449 | ||
1450 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1451 | #endif |
1452 | ) { | |
1453 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1454 | const UV result = left / right; |
5479d192 NC |
1455 | if (result * right == left) { |
1456 | SP--; /* result is valid */ | |
1457 | if (left_non_neg == right_non_neg) { | |
1458 | /* signs identical, result is positive. */ | |
1459 | SETu( result ); | |
1460 | RETURN; | |
1461 | } | |
1462 | /* 2s complement assumption */ | |
1463 | if (result <= (UV)IV_MIN) | |
91f3b821 | 1464 | SETi( -(IV)result ); |
5479d192 NC |
1465 | else { |
1466 | /* It's exact but too negative for IV. */ | |
1467 | SETn( -(NV)result ); | |
1468 | } | |
1469 | RETURN; | |
1470 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1471 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
01f91bf2 | 1472 | } /* one operand wasn't SvIOK */ |
5479d192 NC |
1473 | #endif /* PERL_TRY_UV_DIVIDE */ |
1474 | { | |
6f1401dc DM |
1475 | NV right = SvNV_nomg(svr); |
1476 | NV left = SvNV_nomg(svl); | |
4efa5a16 | 1477 | (void)POPs;(void)POPs; |
ebc6a117 PD |
1478 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
1479 | if (! Perl_isnan(right) && right == 0.0) | |
1480 | #else | |
5479d192 | 1481 | if (right == 0.0) |
ebc6a117 | 1482 | #endif |
5479d192 NC |
1483 | DIE(aTHX_ "Illegal division by zero"); |
1484 | PUSHn( left / right ); | |
1485 | RETURN; | |
79072805 | 1486 | } |
a0d0e21e LW |
1487 | } |
1488 | ||
1489 | PP(pp_modulo) | |
1490 | { | |
6f1401dc DM |
1491 | dVAR; dSP; dATARGET; |
1492 | tryAMAGICbin_MG(modulo_amg, AMGf_assign|AMGf_numeric); | |
a0d0e21e | 1493 | { |
9c5ffd7c JH |
1494 | UV left = 0; |
1495 | UV right = 0; | |
dc656993 JH |
1496 | bool left_neg = FALSE; |
1497 | bool right_neg = FALSE; | |
e2c88acc NC |
1498 | bool use_double = FALSE; |
1499 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1500 | NV dright = 0.0; |
1501 | NV dleft = 0.0; | |
6f1401dc DM |
1502 | SV * const svr = TOPs; |
1503 | SV * const svl = TOPm1s; | |
01f91bf2 | 1504 | if (SvIV_please_nomg(svr)) { |
800401ee | 1505 | right_neg = !SvUOK(svr); |
e2c88acc | 1506 | if (!right_neg) { |
800401ee | 1507 | right = SvUVX(svr); |
e2c88acc | 1508 | } else { |
800401ee | 1509 | const IV biv = SvIVX(svr); |
e2c88acc NC |
1510 | if (biv >= 0) { |
1511 | right = biv; | |
1512 | right_neg = FALSE; /* effectively it's a UV now */ | |
1513 | } else { | |
1514 | right = -biv; | |
1515 | } | |
1516 | } | |
1517 | } | |
1518 | else { | |
6f1401dc | 1519 | dright = SvNV_nomg(svr); |
787eafbd IZ |
1520 | right_neg = dright < 0; |
1521 | if (right_neg) | |
1522 | dright = -dright; | |
e2c88acc NC |
1523 | if (dright < UV_MAX_P1) { |
1524 | right = U_V(dright); | |
1525 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1526 | } else { | |
1527 | use_double = TRUE; | |
1528 | } | |
787eafbd | 1529 | } |
a0d0e21e | 1530 | |
e2c88acc NC |
1531 | /* At this point use_double is only true if right is out of range for |
1532 | a UV. In range NV has been rounded down to nearest UV and | |
1533 | use_double false. */ | |
01f91bf2 | 1534 | if (!use_double && SvIV_please_nomg(svl)) { |
800401ee | 1535 | left_neg = !SvUOK(svl); |
e2c88acc | 1536 | if (!left_neg) { |
800401ee | 1537 | left = SvUVX(svl); |
e2c88acc | 1538 | } else { |
800401ee | 1539 | const IV aiv = SvIVX(svl); |
e2c88acc NC |
1540 | if (aiv >= 0) { |
1541 | left = aiv; | |
1542 | left_neg = FALSE; /* effectively it's a UV now */ | |
1543 | } else { | |
1544 | left = -aiv; | |
1545 | } | |
1546 | } | |
e2c88acc | 1547 | } |
787eafbd | 1548 | else { |
6f1401dc | 1549 | dleft = SvNV_nomg(svl); |
787eafbd IZ |
1550 | left_neg = dleft < 0; |
1551 | if (left_neg) | |
1552 | dleft = -dleft; | |
68dc0745 | 1553 | |
e2c88acc NC |
1554 | /* This should be exactly the 5.6 behaviour - if left and right are |
1555 | both in range for UV then use U_V() rather than floor. */ | |
1556 | if (!use_double) { | |
1557 | if (dleft < UV_MAX_P1) { | |
1558 | /* right was in range, so is dleft, so use UVs not double. | |
1559 | */ | |
1560 | left = U_V(dleft); | |
1561 | } | |
1562 | /* left is out of range for UV, right was in range, so promote | |
1563 | right (back) to double. */ | |
1564 | else { | |
1565 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1566 | consistent with the implicit +0 floor in the U_V() | |
1567 | inside the #if 1. */ | |
1568 | dleft = Perl_floor(dleft + 0.5); | |
1569 | use_double = TRUE; | |
1570 | if (dright_valid) | |
1571 | dright = Perl_floor(dright + 0.5); | |
1572 | else | |
1573 | dright = right; | |
1574 | } | |
1575 | } | |
1576 | } | |
6f1401dc | 1577 | sp -= 2; |
787eafbd | 1578 | if (use_double) { |
65202027 | 1579 | NV dans; |
787eafbd | 1580 | |
787eafbd | 1581 | if (!dright) |
cea2e8a9 | 1582 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1583 | |
65202027 | 1584 | dans = Perl_fmod(dleft, dright); |
787eafbd IZ |
1585 | if ((left_neg != right_neg) && dans) |
1586 | dans = dright - dans; | |
1587 | if (right_neg) | |
1588 | dans = -dans; | |
1589 | sv_setnv(TARG, dans); | |
1590 | } | |
1591 | else { | |
1592 | UV ans; | |
1593 | ||
787eafbd | 1594 | if (!right) |
cea2e8a9 | 1595 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1596 | |
1597 | ans = left % right; | |
1598 | if ((left_neg != right_neg) && ans) | |
1599 | ans = right - ans; | |
1600 | if (right_neg) { | |
1601 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1602 | /* could change -foo to be (~foo)+1 instead */ | |
1603 | if (ans <= ~((UV)IV_MAX)+1) | |
1604 | sv_setiv(TARG, ~ans+1); | |
1605 | else | |
65202027 | 1606 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1607 | } |
1608 | else | |
1609 | sv_setuv(TARG, ans); | |
1610 | } | |
1611 | PUSHTARG; | |
1612 | RETURN; | |
79072805 | 1613 | } |
a0d0e21e | 1614 | } |
79072805 | 1615 | |
a0d0e21e LW |
1616 | PP(pp_repeat) |
1617 | { | |
6f1401dc | 1618 | dVAR; dSP; dATARGET; |
eb578fdb | 1619 | IV count; |
6f1401dc DM |
1620 | SV *sv; |
1621 | ||
1622 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { | |
1623 | /* TODO: think of some way of doing list-repeat overloading ??? */ | |
1624 | sv = POPs; | |
1625 | SvGETMAGIC(sv); | |
1626 | } | |
1627 | else { | |
1628 | tryAMAGICbin_MG(repeat_amg, AMGf_assign); | |
1629 | sv = POPs; | |
1630 | } | |
1631 | ||
2b573ace JH |
1632 | if (SvIOKp(sv)) { |
1633 | if (SvUOK(sv)) { | |
6f1401dc | 1634 | const UV uv = SvUV_nomg(sv); |
2b573ace JH |
1635 | if (uv > IV_MAX) |
1636 | count = IV_MAX; /* The best we can do? */ | |
1637 | else | |
1638 | count = uv; | |
1639 | } else { | |
6f1401dc | 1640 | const IV iv = SvIV_nomg(sv); |
2b573ace JH |
1641 | if (iv < 0) |
1642 | count = 0; | |
1643 | else | |
1644 | count = iv; | |
1645 | } | |
1646 | } | |
1647 | else if (SvNOKp(sv)) { | |
6f1401dc | 1648 | const NV nv = SvNV_nomg(sv); |
2b573ace JH |
1649 | if (nv < 0.0) |
1650 | count = 0; | |
1651 | else | |
1652 | count = (IV)nv; | |
1653 | } | |
1654 | else | |
6f1401dc DM |
1655 | count = SvIV_nomg(sv); |
1656 | ||
533c011a | 1657 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1658 | dMARK; |
a1894d81 | 1659 | static const char* const oom_list_extend = "Out of memory during list extend"; |
0bd48802 AL |
1660 | const I32 items = SP - MARK; |
1661 | const I32 max = items * count; | |
79072805 | 1662 | |
2b573ace JH |
1663 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
1664 | /* Did the max computation overflow? */ | |
27d5b266 | 1665 | if (items > 0 && max > 0 && (max < items || max < count)) |
0157ef98 | 1666 | Perl_croak(aTHX_ "%s", oom_list_extend); |
a0d0e21e LW |
1667 | MEXTEND(MARK, max); |
1668 | if (count > 1) { | |
1669 | while (SP > MARK) { | |
976c8a39 JH |
1670 | #if 0 |
1671 | /* This code was intended to fix 20010809.028: | |
1672 | ||
1673 | $x = 'abcd'; | |
1674 | for (($x =~ /./g) x 2) { | |
1675 | print chop; # "abcdabcd" expected as output. | |
1676 | } | |
1677 | ||
1678 | * but that change (#11635) broke this code: | |
1679 | ||
1680 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
1681 | ||
1682 | * I can't think of a better fix that doesn't introduce | |
1683 | * an efficiency hit by copying the SVs. The stack isn't | |
1684 | * refcounted, and mortalisation obviously doesn't | |
1685 | * Do The Right Thing when the stack has more than | |
1686 | * one pointer to the same mortal value. | |
1687 | * .robin. | |
1688 | */ | |
e30acc16 RH |
1689 | if (*SP) { |
1690 | *SP = sv_2mortal(newSVsv(*SP)); | |
1691 | SvREADONLY_on(*SP); | |
1692 | } | |
976c8a39 JH |
1693 | #else |
1694 | if (*SP) | |
1695 | SvTEMP_off((*SP)); | |
1696 | #endif | |
a0d0e21e | 1697 | SP--; |
79072805 | 1698 | } |
a0d0e21e LW |
1699 | MARK++; |
1700 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
ad64d0ec | 1701 | items * sizeof(const SV *), count - 1); |
a0d0e21e | 1702 | SP += max; |
79072805 | 1703 | } |
a0d0e21e LW |
1704 | else if (count <= 0) |
1705 | SP -= items; | |
79072805 | 1706 | } |
a0d0e21e | 1707 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1708 | SV * const tmpstr = POPs; |
a0d0e21e | 1709 | STRLEN len; |
9b877dbb | 1710 | bool isutf; |
a1894d81 | 1711 | static const char* const oom_string_extend = |
2b573ace | 1712 | "Out of memory during string extend"; |
a0d0e21e | 1713 | |
6f1401dc DM |
1714 | if (TARG != tmpstr) |
1715 | sv_setsv_nomg(TARG, tmpstr); | |
1716 | SvPV_force_nomg(TARG, len); | |
9b877dbb | 1717 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1718 | if (count != 1) { |
1719 | if (count < 1) | |
1720 | SvCUR_set(TARG, 0); | |
1721 | else { | |
c445ea15 | 1722 | const STRLEN max = (UV)count * len; |
19a94d75 | 1723 | if (len > MEM_SIZE_MAX / count) |
0157ef98 | 1724 | Perl_croak(aTHX_ "%s", oom_string_extend); |
2b573ace | 1725 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); |
8569b9dc | 1726 | SvGROW(TARG, max + 1); |
a0d0e21e | 1727 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1728 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1729 | } |
a0d0e21e | 1730 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1731 | } |
dfcb284a GS |
1732 | if (isutf) |
1733 | (void)SvPOK_only_UTF8(TARG); | |
1734 | else | |
1735 | (void)SvPOK_only(TARG); | |
b80b6069 RH |
1736 | |
1737 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
1738 | /* The parser saw this as a list repeat, and there | |
1739 | are probably several items on the stack. But we're | |
1740 | in scalar context, and there's no pp_list to save us | |
1741 | now. So drop the rest of the items -- robin@kitsite.com | |
1742 | */ | |
1743 | dMARK; | |
1744 | SP = MARK; | |
1745 | } | |
a0d0e21e | 1746 | PUSHTARG; |
79072805 | 1747 | } |
a0d0e21e LW |
1748 | RETURN; |
1749 | } | |
79072805 | 1750 | |
a0d0e21e LW |
1751 | PP(pp_subtract) |
1752 | { | |
800401ee | 1753 | dVAR; dSP; dATARGET; bool useleft; SV *svl, *svr; |
6f1401dc DM |
1754 | tryAMAGICbin_MG(subtr_amg, AMGf_assign|AMGf_numeric); |
1755 | svr = TOPs; | |
1756 | svl = TOPm1s; | |
800401ee | 1757 | useleft = USE_LEFT(svl); |
28e5dec8 | 1758 | #ifdef PERL_PRESERVE_IVUV |
7dca457a NC |
1759 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1760 | "bad things" happen if you rely on signed integers wrapping. */ | |
01f91bf2 | 1761 | if (SvIV_please_nomg(svr)) { |
28e5dec8 JH |
1762 | /* Unless the left argument is integer in range we are going to have to |
1763 | use NV maths. Hence only attempt to coerce the right argument if | |
1764 | we know the left is integer. */ | |
eb578fdb | 1765 | UV auv = 0; |
9c5ffd7c | 1766 | bool auvok = FALSE; |
7dca457a NC |
1767 | bool a_valid = 0; |
1768 | ||
28e5dec8 | 1769 | if (!useleft) { |
7dca457a NC |
1770 | auv = 0; |
1771 | a_valid = auvok = 1; | |
1772 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1773 | } else { |
1774 | /* Left operand is defined, so is it IV? */ | |
01f91bf2 | 1775 | if (SvIV_please_nomg(svl)) { |
800401ee JH |
1776 | if ((auvok = SvUOK(svl))) |
1777 | auv = SvUVX(svl); | |
7dca457a | 1778 | else { |
eb578fdb | 1779 | const IV aiv = SvIVX(svl); |
7dca457a NC |
1780 | if (aiv >= 0) { |
1781 | auv = aiv; | |
1782 | auvok = 1; /* Now acting as a sign flag. */ | |
1783 | } else { /* 2s complement assumption for IV_MIN */ | |
1784 | auv = (UV)-aiv; | |
28e5dec8 | 1785 | } |
7dca457a NC |
1786 | } |
1787 | a_valid = 1; | |
1788 | } | |
1789 | } | |
1790 | if (a_valid) { | |
1791 | bool result_good = 0; | |
1792 | UV result; | |
eb578fdb | 1793 | UV buv; |
800401ee | 1794 | bool buvok = SvUOK(svr); |
9041c2e3 | 1795 | |
7dca457a | 1796 | if (buvok) |
800401ee | 1797 | buv = SvUVX(svr); |
7dca457a | 1798 | else { |
eb578fdb | 1799 | const IV biv = SvIVX(svr); |
7dca457a NC |
1800 | if (biv >= 0) { |
1801 | buv = biv; | |
1802 | buvok = 1; | |
1803 | } else | |
1804 | buv = (UV)-biv; | |
1805 | } | |
1806 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1807 | else "IV" now, independent of how it came in. |
7dca457a NC |
1808 | if a, b represents positive, A, B negative, a maps to -A etc |
1809 | a - b => (a - b) | |
1810 | A - b => -(a + b) | |
1811 | a - B => (a + b) | |
1812 | A - B => -(a - b) | |
1813 | all UV maths. negate result if A negative. | |
1814 | subtract if signs same, add if signs differ. */ | |
1815 | ||
1816 | if (auvok ^ buvok) { | |
1817 | /* Signs differ. */ | |
1818 | result = auv + buv; | |
1819 | if (result >= auv) | |
1820 | result_good = 1; | |
1821 | } else { | |
1822 | /* Signs same */ | |
1823 | if (auv >= buv) { | |
1824 | result = auv - buv; | |
1825 | /* Must get smaller */ | |
1826 | if (result <= auv) | |
1827 | result_good = 1; | |
1828 | } else { | |
1829 | result = buv - auv; | |
1830 | if (result <= buv) { | |
1831 | /* result really should be -(auv-buv). as its negation | |
1832 | of true value, need to swap our result flag */ | |
1833 | auvok = !auvok; | |
1834 | result_good = 1; | |
28e5dec8 | 1835 | } |
28e5dec8 JH |
1836 | } |
1837 | } | |
7dca457a NC |
1838 | if (result_good) { |
1839 | SP--; | |
1840 | if (auvok) | |
1841 | SETu( result ); | |
1842 | else { | |
1843 | /* Negate result */ | |
1844 | if (result <= (UV)IV_MIN) | |
1845 | SETi( -(IV)result ); | |
1846 | else { | |
1847 | /* result valid, but out of range for IV. */ | |
1848 | SETn( -(NV)result ); | |
1849 | } | |
1850 | } | |
1851 | RETURN; | |
1852 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1853 | } |
1854 | } | |
1855 | #endif | |
a0d0e21e | 1856 | { |
6f1401dc | 1857 | NV value = SvNV_nomg(svr); |
4efa5a16 RD |
1858 | (void)POPs; |
1859 | ||
28e5dec8 JH |
1860 | if (!useleft) { |
1861 | /* left operand is undef, treat as zero - value */ | |
1862 | SETn(-value); | |
1863 | RETURN; | |
1864 | } | |
6f1401dc | 1865 | SETn( SvNV_nomg(svl) - value ); |
28e5dec8 | 1866 | RETURN; |
79072805 | 1867 | } |
a0d0e21e | 1868 | } |
79072805 | 1869 | |
a0d0e21e LW |
1870 | PP(pp_left_shift) |
1871 | { | |
6f1401dc | 1872 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1873 | tryAMAGICbin_MG(lshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1874 | svr = POPs; |
1875 | svl = TOPs; | |
a0d0e21e | 1876 | { |
6f1401dc | 1877 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1878 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1879 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1880 | SETi(i << shift); |
d0ba1bd2 JH |
1881 | } |
1882 | else { | |
6f1401dc | 1883 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1884 | SETu(u << shift); |
d0ba1bd2 | 1885 | } |
55497cff | 1886 | RETURN; |
79072805 | 1887 | } |
a0d0e21e | 1888 | } |
79072805 | 1889 | |
a0d0e21e LW |
1890 | PP(pp_right_shift) |
1891 | { | |
6f1401dc | 1892 | dVAR; dSP; dATARGET; SV *svl, *svr; |
a42d0242 | 1893 | tryAMAGICbin_MG(rshift_amg, AMGf_assign|AMGf_numeric); |
6f1401dc DM |
1894 | svr = POPs; |
1895 | svl = TOPs; | |
a0d0e21e | 1896 | { |
6f1401dc | 1897 | const IV shift = SvIV_nomg(svr); |
d0ba1bd2 | 1898 | if (PL_op->op_private & HINT_INTEGER) { |
6f1401dc | 1899 | const IV i = SvIV_nomg(svl); |
972b05a9 | 1900 | SETi(i >> shift); |
d0ba1bd2 JH |
1901 | } |
1902 | else { | |
6f1401dc | 1903 | const UV u = SvUV_nomg(svl); |
972b05a9 | 1904 | SETu(u >> shift); |
d0ba1bd2 | 1905 | } |
a0d0e21e | 1906 | RETURN; |
93a17b20 | 1907 | } |
79072805 LW |
1908 | } |
1909 | ||
a0d0e21e | 1910 | PP(pp_lt) |
79072805 | 1911 | { |
6f1401dc | 1912 | dVAR; dSP; |
33efebe6 DM |
1913 | SV *left, *right; |
1914 | ||
a42d0242 | 1915 | tryAMAGICbin_MG(lt_amg, AMGf_set|AMGf_numeric); |
33efebe6 DM |
1916 | right = POPs; |
1917 | left = TOPs; | |
1918 | SETs(boolSV( | |
1919 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1920 | ? (SvIVX(left) < SvIVX(right)) | |
1921 | : (do_ncmp(left, right) == -1) | |
1922 | )); | |
1923 | RETURN; | |
a0d0e21e | 1924 | } |
79072805 | 1925 | |
a0d0e21e LW |
1926 | PP(pp_gt) |
1927 | { | |
6f1401dc | 1928 | dVAR; dSP; |
33efebe6 | 1929 | SV *left, *right; |
1b6737cc | 1930 | |
33efebe6 DM |
1931 | tryAMAGICbin_MG(gt_amg, AMGf_set|AMGf_numeric); |
1932 | right = POPs; | |
1933 | left = TOPs; | |
1934 | SETs(boolSV( | |
1935 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1936 | ? (SvIVX(left) > SvIVX(right)) | |
1937 | : (do_ncmp(left, right) == 1) | |
1938 | )); | |
1939 | RETURN; | |
a0d0e21e LW |
1940 | } |
1941 | ||
1942 | PP(pp_le) | |
1943 | { | |
6f1401dc | 1944 | dVAR; dSP; |
33efebe6 | 1945 | SV *left, *right; |
1b6737cc | 1946 | |
33efebe6 DM |
1947 | tryAMAGICbin_MG(le_amg, AMGf_set|AMGf_numeric); |
1948 | right = POPs; | |
1949 | left = TOPs; | |
1950 | SETs(boolSV( | |
1951 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1952 | ? (SvIVX(left) <= SvIVX(right)) | |
1953 | : (do_ncmp(left, right) <= 0) | |
1954 | )); | |
1955 | RETURN; | |
a0d0e21e LW |
1956 | } |
1957 | ||
1958 | PP(pp_ge) | |
1959 | { | |
6f1401dc | 1960 | dVAR; dSP; |
33efebe6 DM |
1961 | SV *left, *right; |
1962 | ||
1963 | tryAMAGICbin_MG(ge_amg, AMGf_set|AMGf_numeric); | |
1964 | right = POPs; | |
1965 | left = TOPs; | |
1966 | SETs(boolSV( | |
1967 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1968 | ? (SvIVX(left) >= SvIVX(right)) | |
1969 | : ( (do_ncmp(left, right) & 2) == 0) | |
1970 | )); | |
1971 | RETURN; | |
1972 | } | |
1b6737cc | 1973 | |
33efebe6 DM |
1974 | PP(pp_ne) |
1975 | { | |
1976 | dVAR; dSP; | |
1977 | SV *left, *right; | |
1978 | ||
1979 | tryAMAGICbin_MG(ne_amg, AMGf_set|AMGf_numeric); | |
1980 | right = POPs; | |
1981 | left = TOPs; | |
1982 | SETs(boolSV( | |
1983 | (SvIOK_notUV(left) && SvIOK_notUV(right)) | |
1984 | ? (SvIVX(left) != SvIVX(right)) | |
1985 | : (do_ncmp(left, right) != 0) | |
1986 | )); | |
1987 | RETURN; | |
1988 | } | |
1b6737cc | 1989 | |
33efebe6 DM |
1990 | /* compare left and right SVs. Returns: |
1991 | * -1: < | |
1992 | * 0: == | |
1993 | * 1: > | |
1994 | * 2: left or right was a NaN | |
1995 | */ | |
1996 | I32 | |
1997 | Perl_do_ncmp(pTHX_ SV* const left, SV * const right) | |
1998 | { | |
1999 | dVAR; | |
1b6737cc | 2000 | |
33efebe6 DM |
2001 | PERL_ARGS_ASSERT_DO_NCMP; |
2002 | #ifdef PERL_PRESERVE_IVUV | |
33efebe6 | 2003 | /* Fortunately it seems NaN isn't IOK */ |
01f91bf2 | 2004 | if (SvIV_please_nomg(right) && SvIV_please_nomg(left)) { |
33efebe6 DM |
2005 | if (!SvUOK(left)) { |
2006 | const IV leftiv = SvIVX(left); | |
2007 | if (!SvUOK(right)) { | |
2008 | /* ## IV <=> IV ## */ | |
2009 | const IV rightiv = SvIVX(right); | |
2010 | return (leftiv > rightiv) - (leftiv < rightiv); | |
28e5dec8 | 2011 | } |
33efebe6 DM |
2012 | /* ## IV <=> UV ## */ |
2013 | if (leftiv < 0) | |
2014 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2015 | return -1; | |
2016 | { | |
2017 | const UV rightuv = SvUVX(right); | |
2018 | return ((UV)leftiv > rightuv) - ((UV)leftiv < rightuv); | |
28e5dec8 | 2019 | } |
28e5dec8 | 2020 | } |
79072805 | 2021 | |
33efebe6 DM |
2022 | if (SvUOK(right)) { |
2023 | /* ## UV <=> UV ## */ | |
2024 | const UV leftuv = SvUVX(left); | |
2025 | const UV rightuv = SvUVX(right); | |
2026 | return (leftuv > rightuv) - (leftuv < rightuv); | |
28e5dec8 | 2027 | } |
33efebe6 DM |
2028 | /* ## UV <=> IV ## */ |
2029 | { | |
2030 | const IV rightiv = SvIVX(right); | |
2031 | if (rightiv < 0) | |
2032 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2033 | return 1; | |
2034 | { | |
2035 | const UV leftuv = SvUVX(left); | |
2036 | return (leftuv > (UV)rightiv) - (leftuv < (UV)rightiv); | |
28e5dec8 | 2037 | } |
28e5dec8 | 2038 | } |
118e2215 | 2039 | assert(0); /* NOTREACHED */ |
28e5dec8 JH |
2040 | } |
2041 | #endif | |
a0d0e21e | 2042 | { |
33efebe6 DM |
2043 | NV const rnv = SvNV_nomg(right); |
2044 | NV const lnv = SvNV_nomg(left); | |
2045 | ||
cab190d4 | 2046 | #if defined(NAN_COMPARE_BROKEN) && defined(Perl_isnan) |
33efebe6 DM |
2047 | if (Perl_isnan(lnv) || Perl_isnan(rnv)) { |
2048 | return 2; | |
2049 | } | |
2050 | return (lnv > rnv) - (lnv < rnv); | |
cab190d4 | 2051 | #else |
33efebe6 DM |
2052 | if (lnv < rnv) |
2053 | return -1; | |
2054 | if (lnv > rnv) | |
2055 | return 1; | |
2056 | if (lnv == rnv) | |
2057 | return 0; | |
2058 | return 2; | |
cab190d4 | 2059 | #endif |
a0d0e21e | 2060 | } |
79072805 LW |
2061 | } |
2062 | ||
33efebe6 | 2063 | |
a0d0e21e | 2064 | PP(pp_ncmp) |
79072805 | 2065 | { |
33efebe6 DM |
2066 | dVAR; dSP; |
2067 | SV *left, *right; | |
2068 | I32 value; | |
a42d0242 | 2069 | tryAMAGICbin_MG(ncmp_amg, AMGf_numeric); |
33efebe6 DM |
2070 | right = POPs; |
2071 | left = TOPs; | |
2072 | value = do_ncmp(left, right); | |
2073 | if (value == 2) { | |
3280af22 | 2074 | SETs(&PL_sv_undef); |
79072805 | 2075 | } |
33efebe6 DM |
2076 | else { |
2077 | dTARGET; | |
2078 | SETi(value); | |
2079 | } | |
2080 | RETURN; | |
a0d0e21e | 2081 | } |
79072805 | 2082 | |
afd9910b | 2083 | PP(pp_sle) |
a0d0e21e | 2084 | { |
97aff369 | 2085 | dVAR; dSP; |
79072805 | 2086 | |
afd9910b NC |
2087 | int amg_type = sle_amg; |
2088 | int multiplier = 1; | |
2089 | int rhs = 1; | |
79072805 | 2090 | |
afd9910b NC |
2091 | switch (PL_op->op_type) { |
2092 | case OP_SLT: | |
2093 | amg_type = slt_amg; | |
2094 | /* cmp < 0 */ | |
2095 | rhs = 0; | |
2096 | break; | |
2097 | case OP_SGT: | |
2098 | amg_type = sgt_amg; | |
2099 | /* cmp > 0 */ | |
2100 | multiplier = -1; | |
2101 | rhs = 0; | |
2102 | break; | |
2103 | case OP_SGE: | |
2104 | amg_type = sge_amg; | |
2105 | /* cmp >= 0 */ | |
2106 | multiplier = -1; | |
2107 | break; | |
79072805 | 2108 | } |
79072805 | 2109 | |
6f1401dc | 2110 | tryAMAGICbin_MG(amg_type, AMGf_set); |
a0d0e21e LW |
2111 | { |
2112 | dPOPTOPssrl; | |
1b6737cc | 2113 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2114 | ? sv_cmp_locale_flags(left, right, 0) |
2115 | : sv_cmp_flags(left, right, 0)); | |
afd9910b | 2116 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2117 | RETURN; |
2118 | } | |
2119 | } | |
79072805 | 2120 | |
36477c24 | 2121 | PP(pp_seq) |
2122 | { | |
6f1401dc DM |
2123 | dVAR; dSP; |
2124 | tryAMAGICbin_MG(seq_amg, AMGf_set); | |
36477c24 | 2125 | { |
2126 | dPOPTOPssrl; | |
078504b2 | 2127 | SETs(boolSV(sv_eq_flags(left, right, 0))); |
a0d0e21e LW |
2128 | RETURN; |
2129 | } | |
2130 | } | |
79072805 | 2131 | |
a0d0e21e | 2132 | PP(pp_sne) |
79072805 | 2133 | { |
6f1401dc DM |
2134 | dVAR; dSP; |
2135 | tryAMAGICbin_MG(sne_amg, AMGf_set); | |
a0d0e21e LW |
2136 | { |
2137 | dPOPTOPssrl; | |
078504b2 | 2138 | SETs(boolSV(!sv_eq_flags(left, right, 0))); |
a0d0e21e | 2139 | RETURN; |
463ee0b2 | 2140 | } |
79072805 LW |
2141 | } |
2142 | ||
a0d0e21e | 2143 | PP(pp_scmp) |
79072805 | 2144 | { |
6f1401dc DM |
2145 | dVAR; dSP; dTARGET; |
2146 | tryAMAGICbin_MG(scmp_amg, 0); | |
a0d0e21e LW |
2147 | { |
2148 | dPOPTOPssrl; | |
1b6737cc | 2149 | const int cmp = (IN_LOCALE_RUNTIME |
078504b2 FC |
2150 | ? sv_cmp_locale_flags(left, right, 0) |
2151 | : sv_cmp_flags(left, right, 0)); | |
bbce6d69 | 2152 | SETi( cmp ); |
a0d0e21e LW |
2153 | RETURN; |
2154 | } | |
2155 | } | |
79072805 | 2156 | |
55497cff | 2157 | PP(pp_bit_and) |
2158 | { | |
6f1401dc DM |
2159 | dVAR; dSP; dATARGET; |
2160 | tryAMAGICbin_MG(band_amg, AMGf_assign); | |
a0d0e21e LW |
2161 | { |
2162 | dPOPTOPssrl; | |
4633a7c4 | 2163 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2164 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2165 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2166 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2167 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2168 | SETi(i); |
d0ba1bd2 JH |
2169 | } |
2170 | else { | |
1b6737cc | 2171 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2172 | SETu(u); |
d0ba1bd2 | 2173 | } |
5ee80e13 | 2174 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2175 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2176 | } |
2177 | else { | |
533c011a | 2178 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2179 | SETTARG; |
2180 | } | |
2181 | RETURN; | |
2182 | } | |
2183 | } | |
79072805 | 2184 | |
a0d0e21e LW |
2185 | PP(pp_bit_or) |
2186 | { | |
3658c1f1 NC |
2187 | dVAR; dSP; dATARGET; |
2188 | const int op_type = PL_op->op_type; | |
2189 | ||
6f1401dc | 2190 | tryAMAGICbin_MG((op_type == OP_BIT_OR ? bor_amg : bxor_amg), AMGf_assign); |
a0d0e21e LW |
2191 | { |
2192 | dPOPTOPssrl; | |
4633a7c4 | 2193 | if (SvNIOKp(left) || SvNIOKp(right)) { |
b20c4ee1 FC |
2194 | const bool left_ro_nonnum = !SvNIOKp(left) && SvREADONLY(left); |
2195 | const bool right_ro_nonnum = !SvNIOKp(right) && SvREADONLY(right); | |
d0ba1bd2 | 2196 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2197 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2198 | const IV r = SvIV_nomg(right); | |
2199 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2200 | SETi(result); | |
d0ba1bd2 JH |
2201 | } |
2202 | else { | |
3658c1f1 NC |
2203 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2204 | const UV r = SvUV_nomg(right); | |
2205 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2206 | SETu(result); | |
d0ba1bd2 | 2207 | } |
5ee80e13 | 2208 | if (left_ro_nonnum && left != TARG) SvNIOK_off(left); |
b20c4ee1 | 2209 | if (right_ro_nonnum) SvNIOK_off(right); |
a0d0e21e LW |
2210 | } |
2211 | else { | |
3658c1f1 | 2212 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2213 | SETTARG; |
2214 | } | |
2215 | RETURN; | |
79072805 | 2216 | } |
a0d0e21e | 2217 | } |
79072805 | 2218 | |
1c2b3fd6 FC |
2219 | PERL_STATIC_INLINE bool |
2220 | S_negate_string(pTHX) | |
2221 | { | |
2222 | dTARGET; dSP; | |
2223 | STRLEN len; | |
2224 | const char *s; | |
2225 | SV * const sv = TOPs; | |
2226 | if (!SvPOKp(sv) || SvNIOK(sv) || (!SvPOK(sv) && SvNIOKp(sv))) | |
2227 | return FALSE; | |
2228 | s = SvPV_nomg_const(sv, len); | |
2229 | if (isIDFIRST(*s)) { | |
2230 | sv_setpvs(TARG, "-"); | |
2231 | sv_catsv(TARG, sv); | |
2232 | } | |
2233 | else if (*s == '+' || (*s == '-' && !looks_like_number(sv))) { | |
2234 | sv_setsv_nomg(TARG, sv); | |
2235 | *SvPV_force_nomg(TARG, len) = *s == '-' ? '+' : '-'; | |
2236 | } | |
2237 | else return FALSE; | |
2238 | SETTARG; PUTBACK; | |
2239 | return TRUE; | |
2240 | } | |
2241 | ||
a0d0e21e LW |
2242 | PP(pp_negate) |
2243 | { | |
6f1401dc DM |
2244 | dVAR; dSP; dTARGET; |
2245 | tryAMAGICun_MG(neg_amg, AMGf_numeric); | |
1c2b3fd6 | 2246 | if (S_negate_string(aTHX)) return NORMAL; |
a0d0e21e | 2247 | { |
6f1401dc | 2248 | SV * const sv = TOPs; |
a5b92898 | 2249 | |
d96ab1b5 | 2250 | if (SvIOK(sv)) { |
7dbe3150 | 2251 | /* It's publicly an integer */ |
28e5dec8 | 2252 | oops_its_an_int: |
9b0e499b GS |
2253 | if (SvIsUV(sv)) { |
2254 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2255 | /* 2s complement assumption. */ |
d14578b8 KW |
2256 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == |
2257 | IV_MIN */ | |
9b0e499b GS |
2258 | RETURN; |
2259 | } | |
2260 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2261 | SETi(-SvIVX(sv)); |
9b0e499b GS |
2262 | RETURN; |
2263 | } | |
2264 | } | |
2265 | else if (SvIVX(sv) != IV_MIN) { | |
2266 | SETi(-SvIVX(sv)); | |
2267 | RETURN; | |
2268 | } | |
28e5dec8 JH |
2269 | #ifdef PERL_PRESERVE_IVUV |
2270 | else { | |
2271 | SETu((UV)IV_MIN); | |
2272 | RETURN; | |
2273 | } | |
2274 | #endif | |
9b0e499b | 2275 | } |
8a5decd8 | 2276 | if (SvNIOKp(sv) && (SvNIOK(sv) || !SvPOK(sv))) |
6f1401dc | 2277 | SETn(-SvNV_nomg(sv)); |
1c2b3fd6 | 2278 | else if (SvPOKp(sv) && SvIV_please_nomg(sv)) |
8eb28a70 | 2279 | goto oops_its_an_int; |
4633a7c4 | 2280 | else |
6f1401dc | 2281 | SETn(-SvNV_nomg(sv)); |
79072805 | 2282 | } |
a0d0e21e | 2283 | RETURN; |
79072805 LW |
2284 | } |
2285 | ||
a0d0e21e | 2286 | PP(pp_not) |
79072805 | 2287 | { |
6f1401dc DM |
2288 | dVAR; dSP; |
2289 | tryAMAGICun_MG(not_amg, AMGf_set); | |
06c841cf | 2290 | *PL_stack_sp = boolSV(!SvTRUE_nomg(*PL_stack_sp)); |
a0d0e21e | 2291 | return NORMAL; |
79072805 LW |
2292 | } |
2293 | ||
a0d0e21e | 2294 | PP(pp_complement) |
79072805 | 2295 | { |
6f1401dc | 2296 | dVAR; dSP; dTARGET; |
a42d0242 | 2297 | tryAMAGICun_MG(compl_amg, AMGf_numeric); |
a0d0e21e LW |
2298 | { |
2299 | dTOPss; | |
4633a7c4 | 2300 | if (SvNIOKp(sv)) { |
d0ba1bd2 | 2301 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2302 | const IV i = ~SvIV_nomg(sv); |
972b05a9 | 2303 | SETi(i); |
d0ba1bd2 JH |
2304 | } |
2305 | else { | |
1b6737cc | 2306 | const UV u = ~SvUV_nomg(sv); |
972b05a9 | 2307 | SETu(u); |
d0ba1bd2 | 2308 | } |
a0d0e21e LW |
2309 | } |
2310 | else { | |
eb578fdb KW |
2311 | U8 *tmps; |
2312 | I32 anum; | |
a0d0e21e LW |
2313 | STRLEN len; |
2314 | ||
10516c54 | 2315 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
891f9566 | 2316 | sv_setsv_nomg(TARG, sv); |
6f1401dc | 2317 | tmps = (U8*)SvPV_force_nomg(TARG, len); |
a0d0e21e | 2318 | anum = len; |
1d68d6cd | 2319 | if (SvUTF8(TARG)) { |
a1ca4561 | 2320 | /* Calculate exact length, let's not estimate. */ |
1d68d6cd | 2321 | STRLEN targlen = 0; |
ba210ebe | 2322 | STRLEN l; |
a1ca4561 YST |
2323 | UV nchar = 0; |
2324 | UV nwide = 0; | |
01f6e806 | 2325 | U8 * const send = tmps + len; |
74d49cd0 TS |
2326 | U8 * const origtmps = tmps; |
2327 | const UV utf8flags = UTF8_ALLOW_ANYUV; | |
1d68d6cd | 2328 | |
1d68d6cd | 2329 | while (tmps < send) { |
74d49cd0 TS |
2330 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2331 | tmps += l; | |
5bbb0b5a | 2332 | targlen += UNISKIP(~c); |
a1ca4561 YST |
2333 | nchar++; |
2334 | if (c > 0xff) | |
2335 | nwide++; | |
1d68d6cd SC |
2336 | } |
2337 | ||
2338 | /* Now rewind strings and write them. */ | |
74d49cd0 | 2339 | tmps = origtmps; |
a1ca4561 YST |
2340 | |
2341 | if (nwide) { | |
01f6e806 AL |
2342 | U8 *result; |
2343 | U8 *p; | |
2344 | ||
74d49cd0 | 2345 | Newx(result, targlen + 1, U8); |
01f6e806 | 2346 | p = result; |
a1ca4561 | 2347 | while (tmps < send) { |
74d49cd0 TS |
2348 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2349 | tmps += l; | |
01f6e806 | 2350 | p = uvchr_to_utf8_flags(p, ~c, UNICODE_ALLOW_ANY); |
a1ca4561 | 2351 | } |
01f6e806 | 2352 | *p = '\0'; |
c1c21316 NC |
2353 | sv_usepvn_flags(TARG, (char*)result, targlen, |
2354 | SV_HAS_TRAILING_NUL); | |
a1ca4561 YST |
2355 | SvUTF8_on(TARG); |
2356 | } | |
2357 | else { | |
01f6e806 AL |
2358 | U8 *result; |
2359 | U8 *p; | |
2360 | ||
74d49cd0 | 2361 | Newx(result, nchar + 1, U8); |
01f6e806 | 2362 | p = result; |
a1ca4561 | 2363 | while (tmps < send) { |
74d49cd0 TS |
2364 | const U8 c = (U8)utf8n_to_uvchr(tmps, send-tmps, &l, utf8flags); |
2365 | tmps += l; | |
01f6e806 | 2366 | *p++ = ~c; |
a1ca4561 | 2367 | } |
01f6e806 | 2368 | *p = '\0'; |
c1c21316 | 2369 | sv_usepvn_flags(TARG, (char*)result, nchar, SV_HAS_TRAILING_NUL); |
d0a21e00 | 2370 | SvUTF8_off(TARG); |
1d68d6cd | 2371 | } |
ec93b65f | 2372 | SETTARG; |
1d68d6cd SC |
2373 | RETURN; |
2374 | } | |
a0d0e21e | 2375 | #ifdef LIBERAL |
51723571 | 2376 | { |
eb578fdb | 2377 | long *tmpl; |
51723571 JH |
2378 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) |
2379 | *tmps = ~*tmps; | |
2380 | tmpl = (long*)tmps; | |
bb7a0f54 | 2381 | for ( ; anum >= (I32)sizeof(long); anum -= (I32)sizeof(long), tmpl++) |
51723571 JH |
2382 | *tmpl = ~*tmpl; |
2383 | tmps = (U8*)tmpl; | |
2384 | } | |
a0d0e21e LW |
2385 | #endif |
2386 | for ( ; anum > 0; anum--, tmps++) | |
2387 | *tmps = ~*tmps; | |
ec93b65f | 2388 | SETTARG; |
a0d0e21e LW |
2389 | } |
2390 | RETURN; | |
2391 | } | |
79072805 LW |
2392 | } |
2393 | ||
a0d0e21e LW |
2394 | /* integer versions of some of the above */ |
2395 | ||
a0d0e21e | 2396 | PP(pp_i_multiply) |
79072805 | 2397 | { |
6f1401dc DM |
2398 | dVAR; dSP; dATARGET; |
2399 | tryAMAGICbin_MG(mult_amg, AMGf_assign); | |
a0d0e21e | 2400 | { |
6f1401dc | 2401 | dPOPTOPiirl_nomg; |
a0d0e21e LW |
2402 | SETi( left * right ); |
2403 | RETURN; | |
2404 | } | |
79072805 LW |
2405 | } |
2406 | ||
a0d0e21e | 2407 | PP(pp_i_divide) |
79072805 | 2408 | { |
85935d8e | 2409 | IV num; |
6f1401dc DM |
2410 | dVAR; dSP; dATARGET; |
2411 | tryAMAGICbin_MG(div_amg, AMGf_assign); | |
a0d0e21e | 2412 | { |
6f1401dc | 2413 | dPOPTOPssrl; |
85935d8e | 2414 | IV value = SvIV_nomg(right); |
a0d0e21e | 2415 | if (value == 0) |
ece1bcef | 2416 | DIE(aTHX_ "Illegal division by zero"); |
85935d8e | 2417 | num = SvIV_nomg(left); |
a0cec769 YST |
2418 | |
2419 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2420 | if (value == -1) | |
2421 | value = - num; | |
2422 | else | |
2423 | value = num / value; | |
6f1401dc | 2424 | SETi(value); |
a0d0e21e LW |
2425 | RETURN; |
2426 | } | |
79072805 LW |
2427 | } |
2428 | ||
a5bd31f4 | 2429 | #if defined(__GLIBC__) && IVSIZE == 8 && !defined(PERL_DEBUG_READONLY_OPS) |
224ec323 JH |
2430 | STATIC |
2431 | PP(pp_i_modulo_0) | |
befad5d1 NC |
2432 | #else |
2433 | PP(pp_i_modulo) | |
2434 | #endif | |
224ec323 JH |
2435 | { |
2436 | /* This is the vanilla old i_modulo. */ | |
6f1401dc DM |
2437 | dVAR; dSP; dATARGET; |
2438 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2439 | { |
6f1401dc | 2440 | dPOPTOPiirl_nomg; |
224ec323 JH |
2441 | if (!right) |
2442 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2443 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2444 | if (right == -1) | |
2445 | SETi( 0 ); | |
2446 | else | |
2447 | SETi( left % right ); | |
224ec323 JH |
2448 | RETURN; |
2449 | } | |
2450 | } | |
2451 | ||
a5bd31f4 | 2452 | #if defined(__GLIBC__) && IVSIZE == 8 && !defined(PERL_DEBUG_READONLY_OPS) |
224ec323 JH |
2453 | STATIC |
2454 | PP(pp_i_modulo_1) | |
befad5d1 | 2455 | |
224ec323 | 2456 | { |
224ec323 | 2457 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2458 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2459 | * See below for pp_i_modulo. */ |
6f1401dc DM |
2460 | dVAR; dSP; dATARGET; |
2461 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2462 | { |
6f1401dc | 2463 | dPOPTOPiirl_nomg; |
224ec323 JH |
2464 | if (!right) |
2465 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2466 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2467 | if (right == -1) | |
2468 | SETi( 0 ); | |
2469 | else | |
2470 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2471 | RETURN; |
2472 | } | |
224ec323 JH |
2473 | } |
2474 | ||
a0d0e21e | 2475 | PP(pp_i_modulo) |
79072805 | 2476 | { |
6f1401dc DM |
2477 | dVAR; dSP; dATARGET; |
2478 | tryAMAGICbin_MG(modulo_amg, AMGf_assign); | |
224ec323 | 2479 | { |
6f1401dc | 2480 | dPOPTOPiirl_nomg; |
224ec323 JH |
2481 | if (!right) |
2482 | DIE(aTHX_ "Illegal modulus zero"); | |
2483 | /* The assumption is to use hereafter the old vanilla version... */ | |
2484 | PL_op->op_ppaddr = | |
2485 | PL_ppaddr[OP_I_MODULO] = | |
1c127fab | 2486 | Perl_pp_i_modulo_0; |
224ec323 JH |
2487 | /* .. but if we have glibc, we might have a buggy _moddi3 |
2488 | * (at least glicb 2.2.5 is known to have this bug), in other | |
2489 | * words our integer modulus with negative quad as the second | |
2490 | * argument might be broken. Test for this and re-patch the | |
2491 | * opcode dispatch table if that is the case, remembering to | |
2492 | * also apply the workaround so that this first round works | |
2493 | * right, too. See [perl #9402] for more information. */ | |
224ec323 JH |
2494 | { |
2495 | IV l = 3; | |
2496 | IV r = -10; | |
2497 | /* Cannot do this check with inlined IV constants since | |
2498 | * that seems to work correctly even with the buggy glibc. */ | |
2499 | if (l % r == -3) { | |
2500 | /* Yikes, we have the bug. | |
2501 | * Patch in the workaround version. */ | |
2502 | PL_op->op_ppaddr = | |
2503 | PL_ppaddr[OP_I_MODULO] = | |
2504 | &Perl_pp_i_modulo_1; | |
2505 | /* Make certain we work right this time, too. */ | |
32fdb065 | 2506 | right = PERL_ABS(right); |
224ec323 JH |
2507 | } |
2508 | } | |
a0cec769 YST |
2509 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2510 | if (right == -1) | |
2511 | SETi( 0 ); | |
2512 | else | |
2513 | SETi( left % right ); | |
224ec323 JH |
2514 | RETURN; |
2515 | } | |
79072805 | 2516 | } |
befad5d1 | 2517 | #endif |
79072805 | 2518 | |
a0d0e21e | 2519 | PP(pp_i_add) |
79072805 | 2520 | { |
6f1401dc DM |
2521 | dVAR; dSP; dATARGET; |
2522 | tryAMAGICbin_MG(add_amg, AMGf_assign); | |
a0d0e21e | 2523 | { |
6f1401dc | 2524 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2525 | SETi( left + right ); |
2526 | RETURN; | |
79072805 | 2527 | } |
79072805 LW |
2528 | } |
2529 | ||
a0d0e21e | 2530 | PP(pp_i_subtract) |
79072805 | 2531 | { |
6f1401dc DM |
2532 | dVAR; dSP; dATARGET; |
2533 | tryAMAGICbin_MG(subtr_amg, AMGf_assign); | |
a0d0e21e | 2534 | { |
6f1401dc | 2535 | dPOPTOPiirl_ul_nomg; |
a0d0e21e LW |
2536 | SETi( left - right ); |
2537 | RETURN; | |
79072805 | 2538 | } |
79072805 LW |
2539 | } |
2540 | ||
a0d0e21e | 2541 | PP(pp_i_lt) |
79072805 | 2542 | { |
6f1401dc DM |
2543 | dVAR; dSP; |
2544 | tryAMAGICbin_MG(lt_amg, AMGf_set); | |
a0d0e21e | 2545 | { |
96b6b87f | 2546 | dPOPTOPiirl_nomg; |
54310121 | 2547 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2548 | RETURN; |
2549 | } | |
79072805 LW |
2550 | } |
2551 | ||
a0d0e21e | 2552 | PP(pp_i_gt) |
79072805 | 2553 | { |
6f1401dc DM |
2554 | dVAR; dSP; |
2555 | tryAMAGICbin_MG(gt_amg, AMGf_set); | |
a0d0e21e | 2556 | { |
96b6b87f | 2557 | dPOPTOPiirl_nomg; |
54310121 | 2558 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2559 | RETURN; |
2560 | } | |
79072805 LW |
2561 | } |
2562 | ||
a0d0e21e | 2563 | PP(pp_i_le) |
79072805 | 2564 | { |
6f1401dc DM |
2565 | dVAR; dSP; |
2566 | tryAMAGICbin_MG(le_amg, AMGf_set); | |
a0d0e21e | 2567 | { |
96b6b87f | 2568 | dPOPTOPiirl_nomg; |
54310121 | 2569 | SETs(boolSV(left <= right)); |
a0d0e21e | 2570 | RETURN; |
85e6fe83 | 2571 | } |
79072805 LW |
2572 | } |
2573 | ||
a0d0e21e | 2574 | PP(pp_i_ge) |
79072805 | 2575 | { |
6f1401dc DM |
2576 | dVAR; dSP; |
2577 | tryAMAGICbin_MG(ge_amg, AMGf_set); | |
a0d0e21e | 2578 | { |
96b6b87f | 2579 | dPOPTOPiirl_nomg; |
54310121 | 2580 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2581 | RETURN; |
2582 | } | |
79072805 LW |
2583 | } |
2584 | ||
a0d0e21e | 2585 | PP(pp_i_eq) |
79072805 | 2586 | { |
6f1401dc DM |
2587 | dVAR; dSP; |
2588 | tryAMAGICbin_MG(eq_amg, AMGf_set); | |
a0d0e21e | 2589 | { |
96b6b87f | 2590 | dPOPTOPiirl_nomg; |
54310121 | 2591 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2592 | RETURN; |
2593 | } | |
79072805 LW |
2594 | } |
2595 | ||
a0d0e21e | 2596 | PP(pp_i_ne) |
79072805 | 2597 | { |
6f1401dc DM |
2598 | dVAR; dSP; |
2599 | tryAMAGICbin_MG(ne_amg, AMGf_set); | |
a0d0e21e | 2600 | { |
96b6b87f | 2601 | dPOPTOPiirl_nomg; |
54310121 | 2602 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2603 | RETURN; |
2604 | } | |
79072805 LW |
2605 | } |
2606 | ||
a0d0e21e | 2607 | PP(pp_i_ncmp) |
79072805 | 2608 | { |
6f1401dc DM |
2609 | dVAR; dSP; dTARGET; |
2610 | tryAMAGICbin_MG(ncmp_amg, 0); | |
a0d0e21e | 2611 | { |
96b6b87f | 2612 | dPOPTOPiirl_nomg; |
a0d0e21e | 2613 | I32 value; |
79072805 | 2614 | |
a0d0e21e | 2615 | if (left > right) |
79072805 | 2616 | value = 1; |
a0d0e21e | 2617 | else if (left < right) |
79072805 | 2618 | value = -1; |
a0d0e21e | 2619 | else |
79072805 | 2620 | value = 0; |
a0d0e21e LW |
2621 | SETi(value); |
2622 | RETURN; | |
79072805 | 2623 | } |
85e6fe83 LW |
2624 | } |
2625 | ||
2626 | PP(pp_i_negate) | |
2627 | { | |
6f1401dc DM |
2628 | dVAR; dSP; dTARGET; |
2629 | tryAMAGICun_MG(neg_amg, 0); | |
1c2b3fd6 | 2630 | if (S_negate_string(aTHX)) return NORMAL; |
6f1401dc DM |
2631 | { |
2632 | SV * const sv = TOPs; | |
2633 | IV const i = SvIV_nomg(sv); | |
2634 | SETi(-i); | |
2635 | RETURN; | |
2636 | } | |
85e6fe83 LW |
2637 | } |
2638 | ||
79072805 LW |
2639 | /* High falutin' math. */ |
2640 | ||
2641 | PP(pp_atan2) | |
2642 | { | |
6f1401dc DM |
2643 | dVAR; dSP; dTARGET; |
2644 | tryAMAGICbin_MG(atan2_amg, 0); | |
a0d0e21e | 2645 | { |
096c060c | 2646 | dPOPTOPnnrl_nomg; |
a1021d57 | 2647 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2648 | RETURN; |
2649 | } | |
79072805 LW |
2650 | } |
2651 | ||
2652 | PP(pp_sin) | |
2653 | { | |
71302fe3 NC |
2654 | dVAR; dSP; dTARGET; |
2655 | int amg_type = sin_amg; | |
2656 | const char *neg_report = NULL; | |
bc81784a | 2657 | NV (*func)(NV) = Perl_sin; |
71302fe3 NC |
2658 | const int op_type = PL_op->op_type; |
2659 | ||
2660 | switch (op_type) { | |
2661 | case OP_COS: | |
2662 | amg_type = cos_amg; | |
bc81784a | 2663 | func = Perl_cos; |
71302fe3 NC |
2664 | break; |
2665 | case OP_EXP: | |
2666 | amg_type = exp_amg; | |
bc81784a | 2667 | func = Perl_exp; |
71302fe3 NC |
2668 | break; |
2669 | case OP_LOG: | |
2670 | amg_type = log_amg; | |
bc81784a | 2671 | func = Perl_log; |
71302fe3 NC |
2672 | neg_report = "log"; |
2673 | break; | |
2674 | case OP_SQRT: | |
2675 | amg_type = sqrt_amg; | |
bc81784a | 2676 | func = Perl_sqrt; |
71302fe3 NC |
2677 | neg_report = "sqrt"; |
2678 | break; | |
a0d0e21e | 2679 | } |
79072805 | 2680 | |
6f1401dc DM |
2681 | |
2682 | tryAMAGICun_MG(amg_type, 0); | |
a0d0e21e | 2683 | { |
6f1401dc DM |
2684 | SV * const arg = POPs; |
2685 | const NV value = SvNV_nomg(arg); | |
71302fe3 NC |
2686 | if (neg_report) { |
2687 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
2688 | SET_NUMERIC_STANDARD(); | |
dcbac5bb | 2689 | /* diag_listed_as: Can't take log of %g */ |
71302fe3 NC |
2690 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); |
2691 | } | |
2692 | } | |
2693 | XPUSHn(func(value)); | |
a0d0e21e LW |
2694 | RETURN; |
2695 | } | |
79072805 LW |
2696 | } |
2697 | ||
56cb0a1c AD |
2698 | /* Support Configure command-line overrides for rand() functions. |
2699 | After 5.005, perhaps we should replace this by Configure support | |
2700 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2701 | compatibility by calling rand() but allow the user to override it. | |
2702 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2703 | */ | |
85ab1d1d JH |
2704 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2705 | in addition to rand(). So the overrides should not be needed any more. | |
2706 | --Jarkko Hietaniemi 27 September 1998 | |
2707 | */ | |
2708 | ||
2709 | #ifndef HAS_DRAND48_PROTO | |
20ce7b12 | 2710 | extern double drand48 (void); |
56cb0a1c AD |
2711 | #endif |
2712 | ||
79072805 LW |
2713 | PP(pp_rand) |
2714 | { | |
fdf4dddd | 2715 | dVAR; |
80252599 | 2716 | if (!PL_srand_called) { |
85ab1d1d | 2717 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2718 | PL_srand_called = TRUE; |
93dc8474 | 2719 | } |
fdf4dddd DD |
2720 | { |
2721 | dSP; | |
2722 | NV value; | |
2723 | EXTEND(SP, 1); | |
2724 | ||
2725 | if (MAXARG < 1) | |
2726 | value = 1.0; | |
2727 | else { | |
2728 | SV * const sv = POPs; | |
2729 | if(!sv) | |
2730 | value = 1.0; | |
2731 | else | |
2732 | value = SvNV(sv); | |
2733 | } | |
2734 | /* 1 of 2 things can be carried through SvNV, SP or TARG, SP was carried */ | |
2735 | if (value == 0.0) | |
2736 | value = 1.0; | |
2737 | { | |
2738 | dTARGET; | |
2739 | PUSHs(TARG); | |
2740 | PUTBACK; | |
2741 | value *= Drand01(); | |
2742 | sv_setnv_mg(TARG, value); | |
2743 | } | |
2744 | } | |
2745 | return NORMAL; | |
79072805 LW |
2746 | } |
2747 | ||
2748 | PP(pp_srand) | |
2749 | { | |
83832992 | 2750 | dVAR; dSP; dTARGET; |
f914a682 JL |
2751 | UV anum; |
2752 | ||
0a5f3363 | 2753 | if (MAXARG >= 1 && (TOPs || POPs)) { |
f914a682 JL |
2754 | SV *top; |
2755 | char *pv; | |
2756 | STRLEN len; | |
2757 | int flags; | |
2758 | ||
2759 | top = POPs; | |
2760 | pv = SvPV(top, len); | |
2761 | flags = grok_number(pv, len, &anum); | |
2762 | ||
2763 | if (!(flags & IS_NUMBER_IN_UV)) { | |
2764 | Perl_ck_warner_d(aTHX_ packWARN(WARN_OVERFLOW), | |
2765 | "Integer overflow in srand"); | |
2766 | anum = UV_MAX; | |
2767 | } | |
2768 | } | |
2769 | else { | |
2770 | anum = seed(); | |
2771 | } | |
2772 | ||
85ab1d1d | 2773 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2774 | PL_srand_called = TRUE; |
da1010ec NC |
2775 | if (anum) |
2776 | XPUSHu(anum); | |
2777 | else { | |
2778 | /* Historically srand always returned true. We can avoid breaking | |
2779 | that like this: */ | |
2780 | sv_setpvs(TARG, "0 but true"); | |
2781 | XPUSHTARG; | |
2782 | } | |
83832992 | 2783 | RETURN; |
79072805 LW |
2784 | } |
2785 | ||
79072805 LW |
2786 | PP(pp_int) |
2787 | { | |
6f1401dc DM |
2788 | dVAR; dSP; dTARGET; |
2789 | tryAMAGICun_MG(int_amg, AMGf_numeric); | |
774d564b | 2790 | { |
6f1401dc DM |
2791 | SV * const sv = TOPs; |
2792 | const IV iv = SvIV_nomg(sv); | |
28e5dec8 JH |
2793 | /* XXX it's arguable that compiler casting to IV might be subtly |
2794 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2795 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2796 | relying on floating point to be accurate is a bug. */ | |
2797 | ||
c781a409 | 2798 | if (!SvOK(sv)) { |
922c4365 | 2799 | SETu(0); |
c781a409 RD |
2800 | } |
2801 | else if (SvIOK(sv)) { | |
2802 | if (SvIsUV(sv)) | |
6f1401dc | 2803 | SETu(SvUV_nomg(sv)); |
c781a409 | 2804 | else |
28e5dec8 | 2805 | SETi(iv); |
c781a409 | 2806 | } |
c781a409 | 2807 | else { |
6f1401dc | 2808 | const NV value = SvNV_nomg(sv); |
1048ea30 | 2809 | if (value >= 0.0) { |
28e5dec8 JH |
2810 | if (value < (NV)UV_MAX + 0.5) { |
2811 | SETu(U_V(value)); | |
2812 | } else { | |
059a1014 | 2813 | SETn(Perl_floor(value)); |
28e5dec8 | 2814 | } |
1048ea30 | 2815 | } |
28e5dec8 JH |
2816 | else { |
2817 | if (value > (NV)IV_MIN - 0.5) { | |
2818 | SETi(I_V(value)); | |
2819 | } else { | |
1bbae031 | 2820 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
2821 | } |
2822 | } | |
774d564b | 2823 | } |
79072805 | 2824 | } |
79072805 LW |
2825 | RETURN; |
2826 | } | |
2827 | ||
463ee0b2 LW |
2828 | PP(pp_abs) |
2829 | { | |
6f1401dc DM |
2830 | dVAR; dSP; dTARGET; |
2831 | tryAMAGICun_MG(abs_amg, AMGf_numeric); | |
a0d0e21e | 2832 | { |
6f1401dc | 2833 | SV * const sv = TOPs; |
28e5dec8 | 2834 | /* This will cache the NV value if string isn't actually integer */ |
6f1401dc | 2835 | const IV iv = SvIV_nomg(sv); |
a227d84d | 2836 | |
800401ee | 2837 | if (!SvOK(sv)) { |
922c4365 | 2838 | SETu(0); |
800401ee JH |
2839 | } |
2840 | else if (SvIOK(sv)) { | |
28e5dec8 | 2841 | /* IVX is precise */ |
800401ee | 2842 | if (SvIsUV(sv)) { |
6f1401dc | 2843 | SETu(SvUV_nomg(sv)); /* force it to be numeric only */ |
28e5dec8 JH |
2844 | } else { |
2845 | if (iv >= 0) { | |
2846 | SETi(iv); | |
2847 | } else { | |
2848 | if (iv != IV_MIN) { | |
2849 | SETi(-iv); | |
2850 | } else { | |
2851 | /* 2s complement assumption. Also, not really needed as | |
2852 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
2853 | SETu(IV_MIN); | |
2854 | } | |
a227d84d | 2855 | } |
28e5dec8 JH |
2856 | } |
2857 | } else{ | |
6f1401dc | 2858 | const NV value = SvNV_nomg(sv); |
774d564b | 2859 | if (value < 0.0) |
1b6737cc | 2860 | SETn(-value); |
a4474c9e DD |
2861 | else |
2862 | SETn(value); | |
774d564b | 2863 | } |
a0d0e21e | 2864 | } |
774d564b | 2865 | RETURN; |
463ee0b2 LW |
2866 | } |
2867 | ||
79072805 LW |
2868 | PP(pp_oct) |
2869 | { | |
97aff369 | 2870 | dVAR; dSP; dTARGET; |
5c144d81 | 2871 | const char *tmps; |
53305cf1 | 2872 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 2873 | STRLEN len; |
53305cf1 NC |
2874 | NV result_nv; |
2875 | UV result_uv; | |
1b6737cc | 2876 | SV* const sv = POPs; |
79072805 | 2877 | |
349d4f2f | 2878 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
2879 | if (DO_UTF8(sv)) { |
2880 | /* If Unicode, try to downgrade | |
2881 | * If not possible, croak. */ | |
1b6737cc | 2882 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
2883 | |
2884 | SvUTF8_on(tsv); | |
2885 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 2886 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 2887 | } |
daa2adfd NC |
2888 | if (PL_op->op_type == OP_HEX) |
2889 | goto hex; | |
2890 | ||
6f894ead | 2891 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 2892 | tmps++, len--; |
9e24b6e2 | 2893 | if (*tmps == '0') |
53305cf1 | 2894 | tmps++, len--; |
a674e8db | 2895 | if (*tmps == 'x' || *tmps == 'X') { |
daa2adfd | 2896 | hex: |
53305cf1 | 2897 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 2898 | } |
a674e8db | 2899 | else if (*tmps == 'b' || *tmps == 'B') |
53305cf1 | 2900 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 2901 | else |
53305cf1 NC |
2902 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
2903 | ||
2904 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
2905 | XPUSHn(result_nv); | |
2906 | } | |
2907 | else { | |
2908 | XPUSHu(result_uv); | |
2909 | } | |
79072805 LW |
2910 | RETURN; |
2911 | } | |
2912 | ||
2913 | /* String stuff. */ | |
2914 | ||
2915 | PP(pp_length) | |
2916 | { | |
97aff369 | 2917 | dVAR; dSP; dTARGET; |
0bd48802 | 2918 | SV * const sv = TOPs; |
a0ed51b3 | 2919 | |
0f43fd57 FC |
2920 | SvGETMAGIC(sv); |
2921 | if (SvOK(sv)) { | |
193059ca | 2922 | if (!IN_BYTES) |
0f43fd57 | 2923 | SETi(sv_len_utf8_nomg(sv)); |
9f621bb0 | 2924 | else |
0f43fd57 FC |
2925 | { |
2926 | STRLEN len; | |
2927 | (void)SvPV_nomg_const(sv,len); | |
2928 | SETi(len); | |
2929 | } | |
656266fc | 2930 | } else { |
9407f9c1 DL |
2931 | if (!SvPADTMP(TARG)) { |
2932 | sv_setsv_nomg(TARG, &PL_sv_undef); | |
2933 | SETTARG; | |
2934 | } | |
2935 | SETs(&PL_sv_undef); | |
92331800 | 2936 | } |
79072805 LW |
2937 | RETURN; |
2938 | } | |
2939 | ||
83f78d1a FC |
2940 | /* Returns false if substring is completely outside original string. |
2941 | No length is indicated by len_iv = 0 and len_is_uv = 0. len_is_uv must | |
2942 | always be true for an explicit 0. | |
2943 | */ | |
2944 | bool | |
2945 | Perl_translate_substr_offsets(pTHX_ STRLEN curlen, IV pos1_iv, | |
2946 | bool pos1_is_uv, IV len_iv, | |
2947 | bool len_is_uv, STRLEN *posp, | |
2948 | STRLEN *lenp) | |
2949 | { | |
2950 | IV pos2_iv; | |
2951 | int pos2_is_uv; | |
2952 | ||
2953 | PERL_ARGS_ASSERT_TRANSLATE_SUBSTR_OFFSETS; | |
2954 | ||
2955 | if (!pos1_is_uv && pos1_iv < 0 && curlen) { | |
2956 | pos1_is_uv = curlen-1 > ~(UV)pos1_iv; | |
2957 | pos1_iv += curlen; | |
2958 | } | |
2959 | if ((pos1_is_uv || pos1_iv > 0) && (UV)pos1_iv > curlen) | |
2960 | return FALSE; | |
2961 | ||
2962 | if (len_iv || len_is_uv) { | |
2963 | if (!len_is_uv && len_iv < 0) { | |
2964 | pos2_iv = curlen + len_iv; | |
2965 | if (curlen) | |
2966 | pos2_is_uv = curlen-1 > ~(UV)len_iv; | |
2967 | else | |
2968 | pos2_is_uv = 0; | |
2969 | } else { /* len_iv >= 0 */ | |
2970 | if (!pos1_is_uv && pos1_iv < 0) { | |
2971 | pos2_iv = pos1_iv + len_iv; | |
2972 | pos2_is_uv = (UV)len_iv > (UV)IV_MAX; | |
2973 | } else { | |
2974 | if ((UV)len_iv > curlen-(UV)pos1_iv) | |
2975 | pos2_iv = curlen; | |
2976 | else | |
2977 | pos2_iv = pos1_iv+len_iv; | |
2978 | pos2_is_uv = 1; | |
2979 | } | |
2980 | } | |
2981 | } | |
2982 | else { | |
2983 | pos2_iv = curlen; | |
2984 | pos2_is_uv = 1; | |
2985 | } | |
2986 | ||
2987 | if (!pos2_is_uv && pos2_iv < 0) { | |
2988 | if (!pos1_is_uv && pos1_iv < 0) | |
2989 | return FALSE; | |
2990 | pos2_iv = 0; | |
2991 | } | |
2992 | else if (!pos1_is_uv && pos1_iv < 0) | |
2993 | pos1_iv = 0; | |
2994 | ||
2995 | if ((UV)pos2_iv < (UV)pos1_iv) | |
2996 | pos2_iv = pos1_iv; | |
2997 | if ((UV)pos2_iv > curlen) | |
2998 | pos2_iv = curlen; | |
2999 | ||
3000 | /* pos1_iv and pos2_iv both in 0..curlen, so the cast is safe */ | |
3001 | *posp = (STRLEN)( (UV)pos1_iv ); | |
3002 | *lenp = (STRLEN)( (UV)pos2_iv - (UV)pos1_iv ); | |
3003 | ||
3004 | return TRUE; | |
3005 | } | |
3006 | ||
79072805 LW |
3007 | PP(pp_substr) |
3008 | { | |
97aff369 | 3009 | dVAR; dSP; dTARGET; |
79072805 | 3010 | SV *sv; |
463ee0b2 | 3011 | STRLEN curlen; |
9402d6ed | 3012 | STRLEN utf8_curlen; |
777f7c56 EB |
3013 | SV * pos_sv; |
3014 | IV pos1_iv; | |
3015 | int pos1_is_uv; | |
777f7c56 EB |
3016 | SV * len_sv; |
3017 | IV len_iv = 0; | |
83f78d1a | 3018 | int len_is_uv = 0; |
24fcb59f | 3019 | I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
bbddc9e0 | 3020 | const bool rvalue = (GIMME_V != G_VOID); |
e1ec3a88 | 3021 | const char *tmps; |
9402d6ed | 3022 | SV *repl_sv = NULL; |
cbbf8932 | 3023 | const char *repl = NULL; |
7b8d334a | 3024 | STRLEN repl_len; |
7bc95ae1 | 3025 | int num_args = PL_op->op_private & 7; |
13e30c65 | 3026 | bool repl_need_utf8_upgrade = FALSE; |
79072805 | 3027 | |
78f9721b SM |
3028 | if (num_args > 2) { |
3029 | if (num_args > 3) { | |
24fcb59f | 3030 | if(!(repl_sv = POPs)) num_args--; |
7bc95ae1 FC |
3031 | } |
3032 | if ((len_sv = POPs)) { | |
3033 | len_iv = SvIV(len_sv); | |
83f78d1a | 3034 | len_is_uv = len_iv ? SvIOK_UV(len_sv) : 1; |
7b8d334a | 3035 | } |
7bc95ae1 | 3036 | else num_args--; |
5d82c453 | 3037 | } |
777f7c56 EB |
3038 | pos_sv = POPs; |
3039 | pos1_iv = SvIV(pos_sv); | |
3040 | pos1_is_uv = SvIOK_UV(pos_sv); | |
79072805 | 3041 | sv = POPs; |
24fcb59f FC |
3042 | if (PL_op->op_private & OPpSUBSTR_REPL_FIRST) { |
3043 | assert(!repl_sv); | |
3044 | repl_sv = POPs; | |
3045 | } | |
849ca7ee | 3046 | PUTBACK; |
6582db62 | 3047 | if (lvalue && !repl_sv) { |
83f78d1a FC |
3048 | SV * ret; |
3049 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ | |
3050 | sv_magic(ret, NULL, PERL_MAGIC_substr, NULL, 0); | |
3051 | LvTYPE(ret) = 'x'; | |
3052 | LvTARG(ret) = SvREFCNT_inc_simple(sv); | |
3053 | LvTARGOFF(ret) = | |
3054 | pos1_is_uv || pos1_iv >= 0 | |
3055 | ? (STRLEN)(UV)pos1_iv | |
3056 | : (LvFLAGS(ret) |= 1, (STRLEN)(UV)-pos1_iv); | |
3057 | LvTARGLEN(ret) = | |
3058 | len_is_uv || len_iv > 0 | |
3059 | ? (STRLEN)(UV)len_iv | |
3060 | : (LvFLAGS(ret) |= 2, (STRLEN)(UV)-len_iv); | |
3061 | ||
3062 | SPAGAIN; | |
3063 | PUSHs(ret); /* avoid SvSETMAGIC here */ | |
3064 | RETURN; | |
a74fb2cd | 3065 | } |
6582db62 FC |
3066 | if (repl_sv) { |
3067 | repl = SvPV_const(repl_sv, repl_len); | |
3068 | SvGETMAGIC(sv); | |
3069 | if (SvROK(sv)) | |
3070 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), | |
3071 | "Attempt to use reference as lvalue in substr" | |
3072 | ); | |
3073 | tmps = SvPV_force_nomg(sv, curlen); | |
3074 | if (DO_UTF8(repl_sv) && repl_len) { | |
3075 | if (!DO_UTF8(sv)) { | |
01680ee9 | 3076 | sv_utf8_upgrade_nomg(sv); |
6582db62 FC |
3077 | curlen = SvCUR(sv); |
3078 | } | |
3079 | } | |
3080 | else if (DO_UTF8(sv)) | |
3081 | repl_need_utf8_upgrade = TRUE; | |
3082 | } | |
3083 | else tmps = SvPV_const(sv, curlen); | |
7e2040f0 | 3084 | if (DO_UTF8(sv)) { |
0d788f38 | 3085 | utf8_curlen = sv_or_pv_len_utf8(sv, tmps, curlen); |
9402d6ed JH |
3086 | if (utf8_curlen == curlen) |
3087 | utf8_curlen = 0; | |
a0ed51b3 | 3088 | else |
9402d6ed | 3089 | curlen = utf8_curlen; |
a0ed51b3 | 3090 | } |
d1c2b58a | 3091 | else |
9402d6ed | 3092 | utf8_curlen = 0; |
a0ed51b3 | 3093 | |
83f78d1a FC |
3094 | { |
3095 | STRLEN pos, len, byte_len, byte_pos; | |
777f7c56 | 3096 | |
83f78d1a FC |
3097 | if (!translate_substr_offsets( |
3098 | curlen, pos1_iv, pos1_is_uv, len_iv, len_is_uv, &pos, &len | |
3099 | )) goto bound_fail; | |
777f7c56 | 3100 | |
83f78d1a FC |
3101 | byte_len = len; |
3102 | byte_pos = utf8_curlen | |
0d788f38 | 3103 | ? sv_or_pv_pos_u2b(sv, tmps, pos, &byte_len) : pos; |
d931b1be | 3104 | |
2154eca7 | 3105 | tmps += byte_pos; |
bbddc9e0 CS |
3106 | |
3107 | if (rvalue) { | |
3108 | SvTAINTED_off(TARG); /* decontaminate */ | |
3109 | SvUTF8_off(TARG); /* decontaminate */ | |
3110 | sv_setpvn(TARG, tmps, byte_len); | |
12aa1545 | 3111 | #ifdef USE_LOCALE_COLLATE |
bbddc9e0 | 3112 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 3113 | #endif |
bbddc9e0 CS |
3114 | if (utf8_curlen) |
3115 | SvUTF8_on(TARG); | |
3116 | } | |
2154eca7 | 3117 | |
f7928d6c | 3118 | if (repl) { |
13e30c65 JH |
3119 | SV* repl_sv_copy = NULL; |
3120 | ||
3121 | if (repl_need_utf8_upgrade) { | |
3122 | repl_sv_copy = newSVsv(repl_sv); | |
3123 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3124 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 | 3125 | } |
502d9230 VP |
3126 | if (!SvOK(sv)) |
3127 | sv_setpvs(sv, ""); | |
777f7c56 | 3128 | sv_insert_flags(sv, byte_pos, byte_len, repl, repl_len, 0); |
ef8d46e8 | 3129 | SvREFCNT_dec(repl_sv_copy); |
f7928d6c | 3130 | } |
79072805 | 3131 | } |
849ca7ee | 3132 | SPAGAIN; |
bbddc9e0 CS |
3133 | if (rvalue) { |
3134 | SvSETMAGIC(TARG); | |
3135 | PUSHs(TARG); | |
3136 | } | |
79072805 | 3137 | RETURN; |
777f7c56 | 3138 | |
1c900557 | 3139 | bound_fail: |
83f78d1a | 3140 | if (repl) |
777f7c56 EB |
3141 | Perl_croak(aTHX_ "substr outside of string"); |
3142 | Perl_ck_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); | |
3143 | RETPUSHUNDEF; | |
79072805 LW |
3144 | } |
3145 | ||
3146 | PP(pp_vec) | |
3147 | { | |
2154eca7 | 3148 | dVAR; dSP; |
eb578fdb KW |
3149 | const IV size = POPi; |
3150 | const IV offset = POPi; | |
3151 | SV * const src = POPs; | |
1b6737cc | 3152 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2154eca7 | 3153 | SV * ret; |
a0d0e21e | 3154 | |
81e118e0 | 3155 | if (lvalue) { /* it's an lvalue! */ |
2154eca7 EB |
3156 | ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
3157 | sv_magic(ret, NULL, PERL_MAGIC_vec, NULL, 0); | |
3158 | LvTYPE(ret) = 'v'; | |
3159 | LvTARG(ret) = SvREFCNT_inc_simple(src); | |
3160 | LvTARGOFF(ret) = offset; | |
3161 | LvTARGLEN(ret) = size; | |
3162 | } | |
3163 | else { | |
3164 | dTARGET; | |
3165 | SvTAINTED_off(TARG); /* decontaminate */ | |
3166 | ret = TARG; | |
79072805 LW |
3167 | } |
3168 | ||
2154eca7 EB |
3169 | sv_setuv(ret, do_vecget(src, offset, size)); |
3170 | PUSHs(ret); | |
79072805 LW |
3171 | RETURN; |
3172 | } | |
3173 | ||
3174 | PP(pp_index) | |
3175 | { | |
97aff369 | 3176 | dVAR; dSP; dTARGET; |
79072805 LW |
3177 | SV *big; |
3178 | SV *little; | |
c445ea15 | 3179 | SV *temp = NULL; |
ad66a58c | 3180 | STRLEN biglen; |
2723d216 | 3181 | STRLEN llen = 0; |
79072805 LW |
3182 | I32 offset; |
3183 | I32 retval; | |
73ee8be2 NC |
3184 | const char *big_p; |
3185 | const char *little_p; | |
2f040f7f NC |
3186 | bool big_utf8; |
3187 | bool little_utf8; | |
2723d216 | 3188 | const bool is_index = PL_op->op_type == OP_INDEX; |
d3e26383 | 3189 | const bool threeargs = MAXARG >= 3 && (TOPs || ((void)POPs,0)); |
79072805 | 3190 | |
e1dccc0d Z |
3191 | if (threeargs) |
3192 | offset = POPi; | |
79072805 LW |
3193 | little = POPs; |
3194 | big = POPs; | |
73ee8be2 NC |
3195 | big_p = SvPV_const(big, biglen); |
3196 | little_p = SvPV_const(little, llen); | |
3197 | ||
e609e586 NC |
3198 | big_utf8 = DO_UTF8(big); |
3199 | little_utf8 = DO_UTF8(little); | |
3200 | if (big_utf8 ^ little_utf8) { | |
3201 | /* One needs to be upgraded. */ | |
2f040f7f NC |
3202 | if (little_utf8 && !PL_encoding) { |
3203 | /* Well, maybe instead we might be able to downgrade the small | |
3204 | string? */ | |
1eced8f8 | 3205 | char * const pv = (char*)bytes_from_utf8((U8 *)little_p, &llen, |
2f040f7f NC |
3206 | &little_utf8); |
3207 | if (little_utf8) { | |
3208 | /* If the large string is ISO-8859-1, and it's not possible to | |
3209 | convert the small string to ISO-8859-1, then there is no | |
3210 | way that it could be found anywhere by index. */ | |
3211 | retval = -1; | |
3212 | goto fail; | |
3213 | } | |
e609e586 | 3214 | |
2f040f7f NC |
3215 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3216 | to ensure it will get free()d */ | |
3217 | little = temp = newSV(0); | |
73ee8be2 NC |
3218 | sv_usepvn(temp, pv, llen); |
3219 | little_p = SvPVX(little); | |
e609e586 | 3220 | } else { |
73ee8be2 NC |
3221 | temp = little_utf8 |
3222 | ? newSVpvn(big_p, biglen) : newSVpvn(little_p, llen); | |
2f040f7f NC |
3223 | |
3224 | if (PL_encoding) { | |
3225 | sv_recode_to_utf8(temp, PL_encoding); | |
3226 | } else { | |
3227 | sv_utf8_upgrade(temp); | |
3228 | } | |
3229 | if (little_utf8) { | |
3230 | big = temp; | |
3231 | big_utf8 = TRUE; | |
73ee8be2 | 3232 | big_p = SvPV_const(big, biglen); |
2f040f7f NC |
3233 | } else { |
3234 | little = temp; | |
73ee8be2 | 3235 | little_p = SvPV_const(little, llen); |
2f040f7f | 3236 | } |
e609e586 NC |
3237 | } |
3238 | } | |
73ee8be2 NC |
3239 | if (SvGAMAGIC(big)) { |
3240 | /* Life just becomes a lot easier if I use a temporary here. | |
3241 | Otherwise I need to avoid calls to sv_pos_u2b(), which (dangerously) | |
3242 | will trigger magic and overloading again, as will fbm_instr() | |
3243 | */ | |
59cd0e26 NC |
3244 | big = newSVpvn_flags(big_p, biglen, |
3245 | SVs_TEMP | (big_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3246 | big_p = SvPVX(big); |
3247 | } | |
e4e44778 | 3248 | if (SvGAMAGIC(little) || (is_index && !SvOK(little))) { |
73ee8be2 NC |
3249 | /* index && SvOK() is a hack. fbm_instr() calls SvPV_const, which will |
3250 | warn on undef, and we've already triggered a warning with the | |
3251 | SvPV_const some lines above. We can't remove that, as we need to | |
3252 | call some SvPV to trigger overloading early and find out if the | |
3253 | string is UTF-8. | |
3254 | This is all getting to messy. The API isn't quite clean enough, | |
3255 | because data access has side effects. | |
3256 | */ | |
59cd0e26 NC |
3257 | little = newSVpvn_flags(little_p, llen, |
3258 | SVs_TEMP | (little_utf8 ? SVf_UTF8 : 0)); | |
73ee8be2 NC |
3259 | little_p = SvPVX(little); |
3260 | } | |
e609e586 | 3261 | |
d3e26383 | 3262 | if (!threeargs) |
2723d216 | 3263 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3264 | else { |
ad66a58c | 3265 | if (big_utf8 && offset > 0) |
a0ed51b3 | 3266 | sv_pos_u2b(big, &offset, 0); |
73ee8be2 NC |
3267 | if (!is_index) |
3268 | offset += llen; | |
a0ed51b3 | 3269 | } |
79072805 LW |
3270 | if (offset < 0) |
3271 | offset = 0; | |
ad66a58c NC |
3272 | else if (offset > (I32)biglen) |
3273 | offset = biglen; | |
73ee8be2 NC |
3274 | if (!(little_p = is_index |
3275 | ? fbm_instr((unsigned char*)big_p + offset, | |
3276 | (unsigned char*)big_p + biglen, little, 0) | |
3277 | : rninstr(big_p, big_p + offset, | |
3278 | little_p, little_p + llen))) | |
a0ed51b3 | 3279 | retval = -1; |
ad66a58c | 3280 | else { |
73ee8be2 | 3281 | retval = little_p - big_p; |
ad66a58c NC |
3282 | if (retval > 0 && big_utf8) |
3283 | sv_pos_b2u(big, &retval); | |
3284 | } | |
ef8d46e8 | 3285 | SvREFCNT_dec(temp); |
2723d216 | 3286 | fail: |
e1dccc0d | 3287 | PUSHi(retval); |
79072805 LW |
3288 | RETURN; |
3289 | } | |
3290 | ||
3291 | PP(pp_sprintf) | |
3292 | { | |
97aff369 | 3293 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
3e6bd4bf | 3294 | SvTAINTED_off(TARG); |
79072805 | 3295 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3296 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3297 | SP = ORIGMARK; |
3298 | PUSHTARG; | |
3299 | RETURN; | |
3300 | } | |
3301 | ||
79072805 LW |
3302 | PP(pp_ord) |
3303 | { | |
97aff369 | 3304 | dVAR; dSP; dTARGET; |
1eced8f8 | 3305 | |
7df053ec | 3306 | SV *argsv = POPs; |
ba210ebe | 3307 | STRLEN len; |
349d4f2f | 3308 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 | 3309 | |
799ef3cb | 3310 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
1eced8f8 | 3311 | SV * const tmpsv = sv_2mortal(newSVsv(argsv)); |
799ef3cb | 3312 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
121910a4 JH |
3313 | argsv = tmpsv; |
3314 | } | |
79072805 | 3315 | |
872c91ae | 3316 | XPUSHu(DO_UTF8(argsv) ? |
89ebb4a3 | 3317 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
5fc32dea | 3318 | (UV)(*s & 0xff)); |
68795e93 | 3319 | |
79072805 LW |
3320 | RETURN; |
3321 | } | |
3322 | ||
463ee0b2 LW |
3323 | PP(pp_chr) |
3324 | { | |
97aff369 | 3325 | dVAR; dSP; dTARGET; |
463ee0b2 | 3326 | char *tmps; |
8a064bd6 | 3327 | UV value; |
71739502 | 3328 | SV *top = POPs; |
8a064bd6 | 3329 | |
71739502 FC |
3330 | SvGETMAGIC(top); |
3331 | if (!IN_BYTES /* under bytes, chr(-1) eq chr(0xff), etc. */ | |
3332 | && ((SvIOKp(top) && !SvIsUV(top) && SvIV_nomg(top) < 0) | |
8a064bd6 | 3333 | || |
71739502 FC |
3334 | ((SvNOKp(top) || (SvOK(top) && !SvIsUV(top))) |
3335 | && SvNV_nomg(top) < 0.0))) { | |
b3fe8680 FC |
3336 | if (ckWARN(WARN_UTF8)) { |
3337 | if (SvGMAGICAL(top)) { | |
3338 | SV *top2 = sv_newmortal(); | |
3339 | sv_setsv_nomg(top2, top); | |
3340 | top = top2; | |
3341 | } | |
3342 | Perl_warner(aTHX_ packWARN(WARN_UTF8), | |
3343 | "Invalid negative number (%"SVf") in chr", top); | |
3344 | } | |
8a064bd6 | 3345 | value = UNICODE_REPLACEMENT; |
8a064bd6 | 3346 | } else { |
71739502 | 3347 | value = SvUV_nomg(top); |
8a064bd6 | 3348 | } |
463ee0b2 | 3349 | |
862a34c6 | 3350 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3351 | |
0064a8a9 | 3352 | if (value > 255 && !IN_BYTES) { |
eb160463 | 3353 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
62961d2e | 3354 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3355 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3356 | *tmps = '\0'; |
3357 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3358 | SvUTF8_on(TARG); |
a0ed51b3 LW |
3359 | XPUSHs(TARG); |
3360 | RETURN; | |
3361 | } | |
3362 | ||
748a9306 | 3363 | SvGROW(TARG,2); |
463ee0b2 LW |
3364 | SvCUR_set(TARG, 1); |
3365 | tmps = SvPVX(TARG); | |
eb160463 | 3366 | *tmps++ = (char)value; |
748a9306 | 3367 | *tmps = '\0'; |
a0d0e21e | 3368 | (void)SvPOK_only(TARG); |
4c5ed6e2 | 3369 | |
88632417 | 3370 | if (PL_encoding && !IN_BYTES) { |
799ef3cb | 3371 | sv_recode_to_utf8(TARG, PL_encoding); |
88632417 | 3372 | tmps = SvPVX(TARG); |
28936164 KW |
3373 | if (SvCUR(TARG) == 0 |
3374 | || ! is_utf8_string((U8*)tmps, SvCUR(TARG)) | |
3375 | || UTF8_IS_REPLACEMENT((U8*) tmps, (U8*) tmps + SvCUR(TARG))) | |
3376 | { | |
4c5ed6e2 | 3377 | SvGROW(TARG, 2); |
d5a15ac2 | 3378 | tmps = SvPVX(TARG); |
4c5ed6e2 TS |
3379 | SvCUR_set(TARG, 1); |
3380 | *tmps++ = (char)value; | |
88632417 | 3381 | *tmps = '\0'; |
4c5ed6e2 | 3382 | SvUTF8_off(TARG); |
88632417 JH |
3383 | } |
3384 | } | |
4c5ed6e2 | 3385 | |
463ee0b2 LW |
3386 | XPUSHs(TARG); |
3387 | RETURN; | |
3388 | } | |
3389 | ||
79072805 LW |
3390 | PP(pp_crypt) |
3391 | { | |
79072805 | 3392 | #ifdef HAS_CRYPT |
97aff369 | 3393 | dVAR; dSP; dTARGET; |
5f74f29c | 3394 | dPOPTOPssrl; |
85c16d83 | 3395 | STRLEN len; |
10516c54 | 3396 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3397 | |
85c16d83 | 3398 | if (DO_UTF8(left)) { |
2bc69dc4 | 3399 | /* If Unicode, try to downgrade. |
f2791508 JH |
3400 | * If not possible, croak. |
3401 | * Yes, we made this up. */ | |
1b6737cc | 3402 | SV* const tsv = sv_2mortal(newSVsv(left)); |
2bc69dc4 | 3403 | |
f2791508 | 3404 | SvUTF8_on(tsv); |
2bc69dc4 | 3405 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3406 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3407 | } |
05404ffe JH |
3408 | # ifdef USE_ITHREADS |
3409 | # ifdef HAS_CRYPT_R | |
3410 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3411 | /* This should be threadsafe because in ithreads there is only | |
3412 | * one thread per interpreter. If this would not be true, | |
3413 | * we would need a mutex to protect this malloc. */ | |
3414 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3415 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3416 | #if defined(__GLIBC__) || defined(__EMX__) | |
3417 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3418 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3419 | /* work around glibc-2.2.5 bug */ | |
3420 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3421 | } | |
05404ffe | 3422 | #endif |
6ab58e4d | 3423 | } |
05404ffe JH |
3424 | # endif /* HAS_CRYPT_R */ |
3425 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3426 | # ifdef FCRYPT |
83003860 | 3427 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3428 | # else |
83003860 | 3429 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3430 | # endif |
ec93b65f | 3431 | SETTARG; |
4808266b | 3432 | RETURN; |
79072805 | 3433 | #else |
b13b2135 | 3434 | DIE(aTHX_ |
79072805 LW |
3435 | "The crypt() function is unimplemented due to excessive paranoia."); |
3436 | #endif | |
79072805 LW |
3437 | } |
3438 | ||
00f254e2 KW |
3439 | /* Generally UTF-8 and UTF-EBCDIC are indistinguishable at this level. So |
3440 | * most comments below say UTF-8, when in fact they mean UTF-EBCDIC as well */ | |
3441 | ||
79072805 LW |
3442 | PP(pp_ucfirst) |
3443 | { | |
00f254e2 KW |
3444 | /* Actually is both lcfirst() and ucfirst(). Only the first character |
3445 | * changes. This means that possibly we can change in-place, ie., just | |
3446 | * take the source and change that one character and store it back, but not | |
3447 | * if read-only etc, or if the length changes */ | |
3448 | ||
97aff369 | 3449 | dVAR; |
39644a26 | 3450 | dSP; |
d54190f6 | 3451 | SV *source = TOPs; |
00f254e2 | 3452 | STRLEN slen; /* slen is the byte length of the whole SV. */ |
d54190f6 NC |
3453 | STRLEN need; |
3454 | SV *dest; | |
00f254e2 KW |
3455 | bool inplace; /* ? Convert first char only, in-place */ |
3456 | bool doing_utf8 = FALSE; /* ? using utf8 */ | |
3457 | bool convert_source_to_utf8 = FALSE; /* ? need to convert */ | |
12e9c124 | 3458 | const int op_type = PL_op->op_type; |
d54190f6 NC |
3459 | const U8 *s; |
3460 | U8 *d; | |
3461 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
00f254e2 KW |
3462 | STRLEN ulen; /* ulen is the byte length of the original Unicode character |
3463 | * stored as UTF-8 at s. */ | |
3464 | STRLEN tculen; /* tculen is the byte length of the freshly titlecased (or | |
3465 | * lowercased) character stored in tmpbuf. May be either | |
3466 | * UTF-8 or not, but in either case is the number of bytes */ | |
094a2f8c | 3467 | bool tainted = FALSE; |
d54190f6 NC |
3468 | |
3469 | SvGETMAGIC(source); | |
3470 | if (SvOK(source)) { | |
3471 | s = (const U8*)SvPV_nomg_const(source, slen); | |
3472 | } else { | |
0a0ffbce RGS |
3473 | if (ckWARN(WARN_UNINITIALIZED)) |
3474 | report_uninit(source); | |
1eced8f8 | 3475 | s = (const U8*)""; |
d54190f6 NC |
3476 | slen = 0; |
3477 | } | |
a0ed51b3 | 3478 | |
00f254e2 KW |
3479 | /* We may be able to get away with changing only the first character, in |
3480 | * place, but not if read-only, etc. Later we may discover more reasons to | |
3481 | * not convert in-place. */ | |
3482 | inplace = SvPADTMP(source) && !SvREADONLY(source) && SvTEMP(source); | |
3483 | ||
3484 | /* First calculate what the changed first character should be. This affects | |
3485 | * whether we can just swap it out, leaving the rest of the string unchanged, | |
3486 | * or even if have to convert the dest to UTF-8 when the source isn't */ | |
3487 | ||
3488 | if (! slen) { /* If empty */ | |
3489 | need = 1; /* still need a trailing NUL */ | |
b7576bcb | 3490 | ulen = 0; |
00f254e2 KW |
3491 | } |
3492 | else if (DO_UTF8(source)) { /* Is the source utf8? */ | |
d54190f6 | 3493 | doing_utf8 = TRUE; |
17e95c9d | 3494 | ulen = UTF8SKIP(s); |
094a2f8c KW |
3495 | if (op_type == OP_UCFIRST) { |
3496 | _to_utf8_title_flags(s, tmpbuf, &tculen, | |
3497 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
3498 | } | |
3499 | else { | |
3500 | _to_utf8_lower_flags(s, tmpbuf, &tculen, | |
3501 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
3502 | } | |
00f254e2 | 3503 | |
17e95c9d KW |
3504 | /* we can't do in-place if the length changes. */ |
3505 | if (ulen != tculen) inplace = FALSE; | |
3506 | need = slen + 1 - ulen + tculen; | |
d54190f6 | 3507 | } |
00f254e2 KW |
3508 | else { /* Non-zero length, non-UTF-8, Need to consider locale and if |
3509 | * latin1 is treated as caseless. Note that a locale takes | |
3510 | * precedence */ | |
167d19f2 | 3511 | ulen = 1; /* Original character is 1 byte */ |
00f254e2 KW |
3512 | tculen = 1; /* Most characters will require one byte, but this will |
3513 | * need to be overridden for the tricky ones */ | |
3514 | need = slen + 1; | |
3515 | ||
3516 | if (op_type == OP_LCFIRST) { | |
d54190f6 | 3517 | |
00f254e2 KW |
3518 | /* lower case the first letter: no trickiness for any character */ |
3519 | *tmpbuf = (IN_LOCALE_RUNTIME) ? toLOWER_LC(*s) : | |
3520 | ((IN_UNI_8_BIT) ? toLOWER_LATIN1(*s) : toLOWER(*s)); | |
3521 | } | |
3522 | /* is ucfirst() */ | |
3523 | else if (IN_LOCALE_RUNTIME) { | |
3524 | *tmpbuf = toUPPER_LC(*s); /* This would be a bug if any locales | |
3525 | * have upper and title case different | |
3526 | */ | |
3527 | } | |
3528 | else if (! IN_UNI_8_BIT) { | |
3529 | *tmpbuf = toUPPER(*s); /* Returns caseless for non-ascii, or | |
3530 | * on EBCDIC machines whatever the | |
3531 | * native function does */ | |
3532 | } | |
3533 | else { /* is ucfirst non-UTF-8, not in locale, and cased latin1 */ | |
167d19f2 KW |
3534 | UV title_ord = _to_upper_title_latin1(*s, tmpbuf, &tculen, 's'); |
3535 | if (tculen > 1) { | |
3536 | assert(tculen == 2); | |
3537 | ||
3538 | /* If the result is an upper Latin1-range character, it can | |
3539 | * still be represented in one byte, which is its ordinal */ | |
3540 | if (UTF8_IS_DOWNGRADEABLE_START(*tmpbuf)) { | |
3541 | *tmpbuf = (U8) title_ord; | |
3542 | tculen = 1; | |
00f254e2 KW |
3543 | } |
3544 | else { | |
167d19f2 KW |
3545 | /* Otherwise it became more than one ASCII character (in |
3546 | * the case of LATIN_SMALL_LETTER_SHARP_S) or changed to | |
3547 | * beyond Latin1, so the number of bytes changed, so can't | |
3548 | * replace just the first character in place. */ | |
3549 | inplace = FALSE; | |
3550 | ||
d14578b8 KW |
3551 | /* If the result won't fit in a byte, the entire result |
3552 | * will have to be in UTF-8. Assume worst case sizing in | |
3553 | * conversion. (all latin1 characters occupy at most two | |
3554 | * bytes in utf8) */ | |
167d19f2 KW |
3555 | if (title_ord > 255) { |
3556 | doing_utf8 = TRUE; | |
3557 | convert_source_to_utf8 = TRUE; | |
3558 | need = slen * 2 + 1; | |
3559 | ||
3560 | /* The (converted) UTF-8 and UTF-EBCDIC lengths of all | |
3561 | * (both) characters whose title case is above 255 is | |
3562 | * 2. */ | |
3563 | ulen = 2; | |
3564 | } | |
3565 | else { /* LATIN_SMALL_LETTER_SHARP_S expands by 1 byte */ | |
3566 | need = slen + 1 + 1; | |
3567 | } | |
00f254e2 | 3568 | } |
167d19f2 | 3569 | } |
00f254e2 KW |
3570 | } /* End of use Unicode (Latin1) semantics */ |
3571 | } /* End of changing the case of the first character */ | |
3572 | ||
3573 | /* Here, have the first character's changed case stored in tmpbuf. Ready to | |
3574 | * generate the result */ | |
3575 | if (inplace) { | |
3576 | ||
3577 | /* We can convert in place. This means we change just the first | |
3578 | * character without disturbing the rest; no need to grow */ | |
d54190f6 NC |
3579 | dest = source; |
3580 | s = d = (U8*)SvPV_force_nomg(source, slen); | |
3581 | } else { | |
3582 | dTARGET; | |
3583 | ||
3584 | dest = TARG; | |
3585 | ||
00f254e2 KW |
3586 | /* Here, we can't convert in place; we earlier calculated how much |
3587 | * space we will need, so grow to accommodate that */ | |
d54190f6 | 3588 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3589 | d = (U8*)SvGROW(dest, need); |
d54190f6 NC |
3590 | (void)SvPOK_only(dest); |
3591 | ||
3592 | SETs(dest); | |
d54190f6 | 3593 | } |
44bc797b | 3594 | |
d54190f6 | 3595 | if (doing_utf8) { |
00f254e2 KW |
3596 | if (! inplace) { |
3597 | if (! convert_source_to_utf8) { | |
3598 | ||
3599 | /* Here both source and dest are in UTF-8, but have to create | |
3600 | * the entire output. We initialize the result to be the | |
3601 | * title/lower cased first character, and then append the rest | |
3602 | * of the string. */ | |
3603 | sv_setpvn(dest, (char*)tmpbuf, tculen); | |
3604 | if (slen > ulen) { | |
3605 | sv_catpvn(dest, (char*)(s + ulen), slen - ulen); | |
3606 | } | |
3607 | } | |
3608 | else { | |
3609 | const U8 *const send = s + slen; | |
3610 | ||
3611 | /* Here the dest needs to be in UTF-8, but the source isn't, | |
3612 | * except we earlier UTF-8'd the first character of the source | |
3613 | * into tmpbuf. First put that into dest, and then append the | |
3614 | * rest of the source, converting it to UTF-8 as we go. */ | |
3615 | ||
3616 | /* Assert tculen is 2 here because the only two characters that | |
3617 | * get to this part of the code have 2-byte UTF-8 equivalents */ | |
3618 | *d++ = *tmpbuf; | |
3619 | *d++ = *(tmpbuf + 1); | |
3620 | s++; /* We have just processed the 1st char */ | |
3621 | ||
3622 | for (; s < send; s++) { | |
3623 | d = uvchr_to_utf8(d, *s); | |
3624 | } | |
3625 | *d = '\0'; | |
3626 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
3627 | } | |
d54190f6 | 3628 | SvUTF8_on(dest); |
a0ed51b3 | 3629 | } |
00f254e2 | 3630 | else { /* in-place UTF-8. Just overwrite the first character */ |
d54190f6 NC |
3631 | Copy(tmpbuf, d, tculen, U8); |
3632 | SvCUR_set(dest, need - 1); | |
a0ed51b3 | 3633 | } |
094a2f8c KW |
3634 | |
3635 | if (tainted) { | |
3636 | TAINT; | |
3637 | SvTAINTED_on(dest); | |
3638 | } | |
a0ed51b3 | 3639 | } |
00f254e2 KW |
3640 | else { /* Neither source nor dest are in or need to be UTF-8 */ |
3641 | if (slen) { | |
2de3dbcc | 3642 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3643 | TAINT; |
d54190f6 | 3644 | SvTAINTED_on(dest); |
31351b04 | 3645 | } |
00f254e2 KW |
3646 | if (inplace) { /* in-place, only need to change the 1st char */ |
3647 | *d = *tmpbuf; | |
3648 | } | |
3649 | else { /* Not in-place */ | |
3650 | ||
3651 | /* Copy the case-changed character(s) from tmpbuf */ | |
3652 | Copy(tmpbuf, d, tculen, U8); | |
3653 | d += tculen - 1; /* Code below expects d to point to final | |
3654 | * character stored */ | |
3655 | } | |
3656 | } | |
3657 | else { /* empty source */ | |
3658 | /* See bug #39028: Don't taint if empty */ | |
d54190f6 NC |
3659 | *d = *s; |
3660 | } | |
3661 | ||
00f254e2 KW |
3662 | /* In a "use bytes" we don't treat the source as UTF-8, but, still want |
3663 | * the destination to retain that flag */ | |
d54190f6 NC |
3664 | if (SvUTF8(source)) |
3665 | SvUTF8_on(dest); | |
3666 | ||
00f254e2 | 3667 | if (!inplace) { /* Finish the rest of the string, unchanged */ |
d54190f6 NC |
3668 | /* This will copy the trailing NUL */ |
3669 | Copy(s + 1, d + 1, slen, U8); | |
3670 | SvCUR_set(dest, need - 1); | |
bbce6d69 | 3671 | } |
bbce6d69 | 3672 | } |
539689e7 FC |
3673 | if (dest != source && SvTAINTED(source)) |
3674 | SvTAINT(dest); | |
d54190f6 | 3675 | SvSETMAGIC(dest); |
79072805 LW |
3676 | RETURN; |
3677 | } | |
3678 | ||
67306194 NC |
3679 | /* There's so much setup/teardown code common between uc and lc, I wonder if |
3680 | it would be worth merging the two, and just having a switch outside each | |
00f254e2 | 3681 | of the three tight loops. There is less and less commonality though */ |
79072805 LW |
3682 | PP(pp_uc) |
3683 | { | |
97aff369 | 3684 | dVAR; |
39644a26 | 3685 | dSP; |
67306194 | 3686 | SV *source = TOPs; |
463ee0b2 | 3687 | STRLEN len; |
67306194 NC |
3688 | STRLEN min; |
3689 | SV *dest; | |
3690 | const U8 *s; | |
3691 | U8 *d; | |
79072805 | 3692 | |
67306194 NC |
3693 | SvGETMAGIC(source); |
3694 | ||
3695 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
00f254e2 KW |
3696 | && SvTEMP(source) && !DO_UTF8(source) |
3697 | && (IN_LOCALE_RUNTIME || ! IN_UNI_8_BIT)) { | |
3698 | ||
3699 | /* We can convert in place. The reason we can't if in UNI_8_BIT is to | |
3700 | * make the loop tight, so we overwrite the source with the dest before | |
3701 | * looking at it, and we need to look at the original source | |
3702 | * afterwards. There would also need to be code added to handle | |
3703 | * switching to not in-place in midstream if we run into characters | |
3704 | * that change the length. | |
3705 | */ | |
67306194 NC |
3706 | dest = source; |
3707 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3708 | min = len + 1; | |
3709 | } else { | |
a0ed51b3 | 3710 | dTARGET; |
a0ed51b3 | 3711 | |
67306194 | 3712 | dest = TARG; |
128c9517 | 3713 | |
67306194 NC |
3714 | /* The old implementation would copy source into TARG at this point. |
3715 | This had the side effect that if source was undef, TARG was now | |
3716 | an undefined SV with PADTMP set, and they don't warn inside | |
3717 | sv_2pv_flags(). However, we're now getting the PV direct from | |
3718 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
3719 | little games. */ | |
3720 | ||
3721 | if (SvOK(source)) { | |
3722 | s = (const U8*)SvPV_nomg_const(source, len); | |
3723 | } else { | |
0a0ffbce RGS |
3724 | if (ckWARN(WARN_UNINITIALIZED)) |
3725 | report_uninit(source); | |
1eced8f8 | 3726 | s = (const U8*)""; |
67306194 | 3727 | len = 0; |
a0ed51b3 | 3728 | } |
67306194 NC |
3729 | min = len + 1; |
3730 | ||
3731 | SvUPGRADE(dest, SVt_PV); | |
3b416f41 | 3732 | d = (U8*)SvGROW(dest, min); |
67306194 NC |
3733 | (void)SvPOK_only(dest); |
3734 | ||
3735 | SETs(dest); | |
a0ed51b3 | 3736 | } |
31351b04 | 3737 | |
67306194 NC |
3738 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need |
3739 | to check DO_UTF8 again here. */ | |
3740 | ||
3741 | if (DO_UTF8(source)) { | |
3742 | const U8 *const send = s + len; | |
bfac13d4 | 3743 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
094a2f8c | 3744 | bool tainted = FALSE; |
67306194 | 3745 | |
4c8a458a KW |
3746 | /* All occurrences of these are to be moved to follow any other marks. |
3747 | * This is context-dependent. We may not be passed enough context to | |
3748 | * move the iota subscript beyond all of them, but we do the best we can | |
3749 | * with what we're given. The result is always better than if we | |
3750 | * hadn't done this. And, the problem would only arise if we are | |
3751 | * passed a character without all its combining marks, which would be | |
3752 | * the caller's mistake. The information this is based on comes from a | |
3753 | * comment in Unicode SpecialCasing.txt, (and the Standard's text | |
3754 | * itself) and so can't be checked properly to see if it ever gets | |
3755 | * revised. But the likelihood of it changing is remote */ | |
00f254e2 | 3756 | bool in_iota_subscript = FALSE; |
00f254e2 | 3757 | |
67306194 | 3758 | while (s < send) { |
3e16b0e6 KW |
3759 | STRLEN u; |
3760 | STRLEN ulen; | |
3761 | UV uv; | |
7dbf68d2 | 3762 | if (in_iota_subscript && ! _is_utf8_mark(s)) { |
3e16b0e6 | 3763 | |
00f254e2 | 3764 | /* A non-mark. Time to output the iota subscript */ |
a78bc3c6 KW |
3765 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
3766 | d += capital_iota_len; | |
00f254e2 | 3767 | in_iota_subscript = FALSE; |
8e058693 | 3768 | } |
00f254e2 | 3769 | |
8e058693 KW |
3770 | /* Then handle the current character. Get the changed case value |
3771 | * and copy it to the output buffer */ | |
00f254e2 | 3772 | |
8e058693 | 3773 | u = UTF8SKIP(s); |
094a2f8c KW |
3774 | uv = _to_utf8_upper_flags(s, tmpbuf, &ulen, |
3775 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
a78bc3c6 KW |
3776 | #define GREEK_CAPITAL_LETTER_IOTA 0x0399 |
3777 | #define COMBINING_GREEK_YPOGEGRAMMENI 0x0345 | |
8e058693 | 3778 | if (uv == GREEK_CAPITAL_LETTER_IOTA |
4b88fb76 | 3779 | && utf8_to_uvchr_buf(s, send, 0) == COMBINING_GREEK_YPOGEGRAMMENI) |
8e058693 KW |
3780 | { |
3781 | in_iota_subscript = TRUE; | |
3782 | } | |
3783 | else { | |
3784 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
3785 | /* If the eventually required minimum size outgrows the | |
3786 | * available space, we need to grow. */ | |
3787 | const UV o = d - (U8*)SvPVX_const(dest); | |
3788 | ||
3789 | /* If someone uppercases one million U+03B0s we SvGROW() | |
3790 | * one million times. Or we could try guessing how much to | |
3791 | * allocate without allocating too much. Such is life. | |
3792 | * See corresponding comment in lc code for another option | |
3793 | * */ | |
3794 | SvGROW(dest, min); | |
3795 | d = (U8*)SvPVX(dest) + o; | |
3796 | } | |
3797 | Copy(tmpbuf, d, ulen, U8); | |
3798 | d += ulen; | |
3799 | } | |
3800 | s += u; | |
67306194 | 3801 | } |
4c8a458a | 3802 | if (in_iota_subscript) { |
a78bc3c6 KW |
3803 | Copy(GREEK_CAPITAL_LETTER_IOTA_UTF8, d, capital_iota_len, U8); |
3804 | d += capital_iota_len; | |
4c8a458a | 3805 | } |
67306194 NC |
3806 | SvUTF8_on(dest); |
3807 | *d = '\0'; | |
094a2f8c | 3808 | |
67306194 | 3809 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
094a2f8c KW |
3810 | if (tainted) { |
3811 | TAINT; | |
3812 | SvTAINTED_on(dest); | |
3813 | } | |
4c8a458a KW |
3814 | } |
3815 | else { /* Not UTF-8 */ | |
67306194 NC |
3816 | if (len) { |
3817 | const U8 *const send = s + len; | |
00f254e2 KW |
3818 | |
3819 | /* Use locale casing if in locale; regular style if not treating | |
3820 | * latin1 as having case; otherwise the latin1 casing. Do the | |
3821 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 3822 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 3823 | TAINT; |
67306194 NC |
3824 | SvTAINTED_on(dest); |
3825 | for (; s < send; d++, s++) | |
3826 | *d = toUPPER_LC(*s); | |
31351b04 | 3827 | } |
00f254e2 KW |
3828 | else if (! IN_UNI_8_BIT) { |
3829 | for (; s < send; d++, s++) { | |
67306194 | 3830 | *d = toUPPER(*s); |
00f254e2 | 3831 | } |
31351b04 | 3832 | } |
00f254e2 KW |
3833 | else { |
3834 | for (; s < send; d++, s++) { | |
3835 | *d = toUPPER_LATIN1_MOD(*s); | |
d14578b8 KW |
3836 | if (LIKELY(*d != LATIN_SMALL_LETTER_Y_WITH_DIAERESIS)) { |
3837 | continue; | |
3838 | } | |
00f254e2 KW |
3839 | |
3840 | /* The mainstream case is the tight loop above. To avoid | |
3841 | * extra tests in that, all three characters that require | |
3842 | * special handling are mapped by the MOD to the one tested | |
3843 | * just above. | |
3844 | * Use the source to distinguish between the three cases */ | |
3845 | ||
3846 | if (*s == LATIN_SMALL_LETTER_SHARP_S) { | |
3847 | ||
3848 | /* uc() of this requires 2 characters, but they are | |
3849 | * ASCII. If not enough room, grow the string */ | |
3850 | if (SvLEN(dest) < ++min) { | |
3851 | const UV o = d - (U8*)SvPVX_const(dest); | |
3852 | SvGROW(dest, min); | |
3853 | d = (U8*)SvPVX(dest) + o; | |
3854 | } | |
3855 | *d++ = 'S'; *d = 'S'; /* upper case is 'SS' */ | |
3856 | continue; /* Back to the tight loop; still in ASCII */ | |
3857 | } | |
3858 | ||
3859 | /* The other two special handling characters have their | |
3860 | * upper cases outside the latin1 range, hence need to be | |
3861 | * in UTF-8, so the whole result needs to be in UTF-8. So, | |
3862 | * here we are somewhere in the middle of processing a | |
3863 | * non-UTF-8 string, and realize that we will have to convert | |
3864 | * the whole thing to UTF-8. What to do? There are | |
3865 | * several possibilities. The simplest to code is to | |
3866 | * convert what we have so far, set a flag, and continue on | |
3867 | * in the loop. The flag would be tested each time through | |
3868 | * the loop, and if set, the next character would be | |
3869 | * converted to UTF-8 and stored. But, I (khw) didn't want | |
3870 | * to slow down the mainstream case at all for this fairly | |
3871 | * rare case, so I didn't want to add a test that didn't | |
3872 | * absolutely have to be there in the loop, besides the | |
3873 | * possibility that it would get too complicated for | |
3874 | * optimizers to deal with. Another possibility is to just | |
3875 | * give up, convert the source to UTF-8, and restart the | |
3876 | * function that way. Another possibility is to convert | |
3877 | * both what has already been processed and what is yet to | |
3878 | * come separately to UTF-8, then jump into the loop that | |
3879 | * handles UTF-8. But the most efficient time-wise of the | |
3880 | * ones I could think of is what follows, and turned out to | |
3881 | * not require much extra code. */ | |
3882 | ||
3883 | /* Convert what we have so far into UTF-8, telling the | |
3884 | * function that we know it should be converted, and to | |
3885 | * allow extra space for what we haven't processed yet. | |
3886 | * Assume the worst case space requirements for converting | |
3887 | * what we haven't processed so far: that it will require | |
3888 | * two bytes for each remaining source character, plus the | |
3889 | * NUL at the end. This may cause the string pointer to | |
3890 | * move, so re-find it. */ | |
3891 | ||
3892 | len = d - (U8*)SvPVX_const(dest); | |
3893 | SvCUR_set(dest, len); | |
3894 | len = sv_utf8_upgrade_flags_grow(dest, | |
3895 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
3896 | (send -s) * 2 + 1); | |
3897 | d = (U8*)SvPVX(dest) + len; | |
3898 | ||
00f254e2 KW |
3899 | /* Now process the remainder of the source, converting to |
3900 | * upper and UTF-8. If a resulting byte is invariant in | |
3901 | * UTF-8, output it as-is, otherwise convert to UTF-8 and | |
3902 | * append it to the output. */ | |
00f254e2 | 3903 | for (; s < send; s++) { |
0ecfbd28 KW |
3904 | (void) _to_upper_title_latin1(*s, d, &len, 'S'); |
3905 | d += len; | |
00f254e2 KW |
3906 | } |
3907 | ||
3908 | /* Here have processed the whole source; no need to continue | |
3909 | * with the outer loop. Each character has been converted | |
3910 | * to upper case and converted to UTF-8 */ | |
3911 | ||
3912 | break; | |
3913 | } /* End of processing all latin1-style chars */ | |
3914 | } /* End of processing all chars */ | |
3915 | } /* End of source is not empty */ | |
3916 | ||
67306194 | 3917 | if (source != dest) { |
00f254e2 | 3918 | *d = '\0'; /* Here d points to 1 after last char, add NUL */ |
67306194 NC |
3919 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); |
3920 | } | |
00f254e2 | 3921 | } /* End of isn't utf8 */ |
539689e7 FC |
3922 | if (dest != source && SvTAINTED(source)) |
3923 | SvTAINT(dest); | |
67306194 | 3924 | SvSETMAGIC(dest); |
79072805 LW |
3925 | RETURN; |
3926 | } | |
3927 | ||
3928 | PP(pp_lc) | |
3929 | { | |
97aff369 | 3930 | dVAR; |
39644a26 | 3931 | dSP; |
ec9af7d4 | 3932 | SV *source = TOPs; |
463ee0b2 | 3933 | STRLEN len; |
ec9af7d4 NC |
3934 | STRLEN min; |
3935 | SV *dest; | |
3936 | const U8 *s; | |
3937 | U8 *d; | |
79072805 | 3938 | |
ec9af7d4 NC |
3939 | SvGETMAGIC(source); |
3940 | ||
3941 | if (SvPADTMP(source) && !SvREADONLY(source) && !SvAMAGIC(source) | |
17fa0776 | 3942 | && SvTEMP(source) && !DO_UTF8(source)) { |
ec9af7d4 | 3943 | |
00f254e2 KW |
3944 | /* We can convert in place, as lowercasing anything in the latin1 range |
3945 | * (or else DO_UTF8 would have been on) doesn't lengthen it */ | |
ec9af7d4 NC |
3946 | dest = source; |
3947 | s = d = (U8*)SvPV_force_nomg(source, len); | |
3948 | min = len + 1; | |
3949 | } else { | |
a0ed51b3 | 3950 | dTARGET; |
a0ed51b3 | 3951 | |
ec9af7d4 NC |
3952 | dest = TARG; |
3953 | ||
3954 | /* The old implementation would copy source into TARG at this point. | |
3955 | This had the side effect that if source was undef, TARG was now | |
3956 | an undefined SV with PADTMP set, and they don't warn inside | |
3957 | sv_2pv_flags(). However, we're now getting the PV direct from | |
3958 | source, which doesn't have PADTMP set, so it would warn. Hence the | |
3959 | little games. */ | |
3960 | ||
3961 | if (SvOK(source)) { | |
3962 | s = (const U8*)SvPV_nomg_const(source, len); | |
3963 | } else { | |
0a0ffbce RGS |
3964 | if (ckWARN(WARN_UNINITIALIZED)) |
3965 | report_uninit(source); | |
1eced8f8 | 3966 | s = (const U8*)""; |
ec9af7d4 | 3967 | len = 0; |
a0ed51b3 | 3968 | } |
ec9af7d4 | 3969 | min = len + 1; |
128c9517 | 3970 | |
ec9af7d4 | 3971 | SvUPGRADE(dest, SVt_PV); |
3b416f41 | 3972 | d = (U8*)SvGROW(dest, min); |
ec9af7d4 NC |
3973 | (void)SvPOK_only(dest); |
3974 | ||
3975 | SETs(dest); | |
3976 | } | |
3977 | ||
3978 | /* Overloaded values may have toggled the UTF-8 flag on source, so we need | |
3979 | to check DO_UTF8 again here. */ | |
3980 | ||
3981 | if (DO_UTF8(source)) { | |
3982 | const U8 *const send = s + len; | |
3983 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; | |
094a2f8c | 3984 | bool tainted = FALSE; |
ec9af7d4 NC |
3985 | |
3986 | while (s < send) { | |
06b5486a KW |
3987 | const STRLEN u = UTF8SKIP(s); |
3988 | STRLEN ulen; | |
00f254e2 | 3989 | |
094a2f8c KW |
3990 | _to_utf8_lower_flags(s, tmpbuf, &ulen, |
3991 | cBOOL(IN_LOCALE_RUNTIME), &tainted); | |
00f254e2 | 3992 | |
06b5486a KW |
3993 | /* Here is where we would do context-sensitive actions. See the |
3994 | * commit message for this comment for why there isn't any */ | |
00f254e2 | 3995 | |
06b5486a | 3996 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { |
fdb34c52 | 3997 | |
06b5486a KW |
3998 | /* If the eventually required minimum size outgrows the |
3999 | * available space, we need to grow. */ | |
4000 | const UV o = d - (U8*)SvPVX_const(dest); | |
fdb34c52 | 4001 | |
06b5486a KW |
4002 | /* If someone lowercases one million U+0130s we SvGROW() one |
4003 | * million times. Or we could try guessing how much to | |
4004 | * allocate without allocating too much. Such is life. | |
4005 | * Another option would be to grow an extra byte or two more | |
4006 | * each time we need to grow, which would cut down the million | |
4007 | * to 500K, with little waste */ | |
4008 | SvGROW(dest, min); | |
4009 | d = (U8*)SvPVX(dest) + o; | |
4010 | } | |
86510fb1 | 4011 | |
06b5486a KW |
4012 | /* Copy the newly lowercased letter to the output buffer we're |
4013 | * building */ | |
4014 | Copy(tmpbuf, d, ulen, U8); | |
4015 | d += ulen; | |
4016 | s += u; | |
00f254e2 | 4017 | } /* End of looping through the source string */ |
ec9af7d4 NC |
4018 | SvUTF8_on(dest); |
4019 | *d = '\0'; | |
4020 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
094a2f8c KW |
4021 | if (tainted) { |
4022 | TAINT; | |
4023 | SvTAINTED_on(dest); | |
4024 | } | |
00f254e2 | 4025 | } else { /* Not utf8 */ |
31351b04 | 4026 | if (len) { |
ec9af7d4 | 4027 | const U8 *const send = s + len; |
00f254e2 KW |
4028 | |
4029 | /* Use locale casing if in locale; regular style if not treating | |
4030 | * latin1 as having case; otherwise the latin1 casing. Do the | |
4031 | * whole thing in a tight loop, for speed, */ | |
2de3dbcc | 4032 | if (IN_LOCALE_RUNTIME) { |
31351b04 | 4033 | TAINT; |
ec9af7d4 NC |
4034 | SvTAINTED_on(dest); |
4035 | for (; s < send; d++, s++) | |
4036 | *d = toLOWER_LC(*s); | |
31351b04 | 4037 | } |
00f254e2 KW |
4038 | else if (! IN_UNI_8_BIT) { |
4039 | for (; s < send; d++, s++) { | |
ec9af7d4 | 4040 | *d = toLOWER(*s); |
00f254e2 KW |
4041 | } |
4042 | } | |
4043 | else { | |
4044 | for (; s < send; d++, s++) { | |
4045 | *d = toLOWER_LATIN1(*s); | |
4046 | } | |
31351b04 | 4047 | } |
bbce6d69 | 4048 | } |
ec9af7d4 NC |
4049 | if (source != dest) { |
4050 | *d = '\0'; | |
4051 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4052 | } | |
79072805 | 4053 | } |
539689e7 FC |
4054 | if (dest != source && SvTAINTED(source)) |
4055 | SvTAINT(dest); | |
ec9af7d4 | 4056 | SvSETMAGIC(dest); |
79072805 LW |
4057 | RETURN; |
4058 | } | |
4059 | ||
a0d0e21e | 4060 | PP(pp_quotemeta) |
79072805 | 4061 | { |
97aff369 | 4062 | dVAR; dSP; dTARGET; |
1b6737cc | 4063 | SV * const sv = TOPs; |
a0d0e21e | 4064 | STRLEN len; |
eb578fdb | 4065 | const char *s = SvPV_const(sv,len); |
79072805 | 4066 | |
7e2040f0 | 4067 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4068 | if (len) { |
eb578fdb | 4069 | char *d; |
862a34c6 | 4070 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 4071 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 4072 | d = SvPVX(TARG); |
7e2040f0 | 4073 | if (DO_UTF8(sv)) { |
0dd2cdef | 4074 | while (len) { |
29050de5 | 4075 | STRLEN ulen = UTF8SKIP(s); |
2e2b2571 KW |
4076 | bool to_quote = FALSE; |
4077 | ||
4078 | if (UTF8_IS_INVARIANT(*s)) { | |
4079 | if (_isQUOTEMETA(*s)) { | |
4080 | to_quote = TRUE; | |
4081 | } | |
4082 | } | |
4083 | else if (UTF8_IS_DOWNGRADEABLE_START(*s)) { | |
20adcf7c KW |
4084 | |
4085 | /* In locale, we quote all non-ASCII Latin1 chars. | |
4086 | * Otherwise use the quoting rules */ | |
4087 | if (IN_LOCALE_RUNTIME | |
4088 | || _isQUOTEMETA(TWO_BYTE_UTF8_TO_UNI(*s, *(s + 1)))) | |
2e2b2571 KW |
4089 | { |
4090 | to_quote = TRUE; | |
4091 | } | |
4092 | } | |
685289b5 | 4093 | else if (is_QUOTEMETA_high(s)) { |
2e2b2571 KW |
4094 | to_quote = TRUE; |
4095 | } | |
4096 | ||
4097 | if (to_quote) { | |
4098 | *d++ = '\\'; | |
4099 | } | |
29050de5 KW |
4100 | if (ulen > len) |
4101 | ulen = len; | |
4102 | len -= ulen; | |
4103 | while (ulen--) | |
4104 | *d++ = *s++; | |
0dd2cdef | 4105 | } |
7e2040f0 | 4106 | SvUTF8_on(TARG); |
0dd2cdef | 4107 | } |
2e2b2571 KW |
4108 | else if (IN_UNI_8_BIT) { |
4109 | while (len--) { | |
4110 | if (_isQUOTEMETA(*s)) | |
4111 | *d++ = '\\'; | |
4112 | *d++ = *s++; | |
4113 | } | |
4114 | } | |
0dd2cdef | 4115 | else { |
2e2b2571 KW |
4116 | /* For non UNI_8_BIT (and hence in locale) just quote all \W |
4117 | * including everything above ASCII */ | |
0dd2cdef | 4118 | while (len--) { |
adfec831 | 4119 | if (!isWORDCHAR_A(*s)) |
0dd2cdef LW |
4120 | *d++ = '\\'; |
4121 | *d++ = *s++; | |
4122 | } | |
79072805 | 4123 | } |
a0d0e21e | 4124 | *d = '\0'; |
349d4f2f | 4125 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 4126 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4127 | } |
a0d0e21e LW |
4128 | else |
4129 | sv_setpvn(TARG, s, len); | |
ec93b65f | 4130 | SETTARG; |
79072805 LW |
4131 | RETURN; |
4132 | } | |
4133 | ||
838f2281 BF |
4134 | PP(pp_fc) |
4135 | { | |
4136 | dVAR; | |
4137 | dTARGET; | |
4138 | dSP; | |
4139 | SV *source = TOPs; | |
4140 | STRLEN len; | |
4141 | STRLEN min; | |
4142 | SV *dest; | |
4143 | const U8 *s; | |
4144 | const U8 *send; | |
4145 | U8 *d; | |
bfac13d4 | 4146 | U8 tmpbuf[UTF8_MAXBYTES_CASE + 1]; |
838f2281 BF |
4147 | const bool full_folding = TRUE; |
4148 | const U8 flags = ( full_folding ? FOLD_FLAGS_FULL : 0 ) | |
4149 | | ( IN_LOCALE_RUNTIME ? FOLD_FLAGS_LOCALE : 0 ); | |
4150 | ||
4151 | /* This is a facsimile of pp_lc, but with a thousand bugs thanks to me. | |
4152 | * You are welcome(?) -Hugmeir | |
4153 | */ | |
4154 | ||
4155 | SvGETMAGIC(source); | |
4156 | ||
4157 | dest = TARG; | |
4158 | ||
4159 | if (SvOK(source)) { | |
4160 | s = (const U8*)SvPV_nomg_const(source, len); | |
4161 | } else { | |
4162 | if (ckWARN(WARN_UNINITIALIZED)) | |
4163 | report_uninit(source); | |
4164 | s = (const U8*)""; | |
4165 | len = 0; | |
4166 | } | |
4167 | ||
4168 | min = len + 1; | |
4169 | ||
4170 | SvUPGRADE(dest, SVt_PV); | |
4171 | d = (U8*)SvGROW(dest, min); | |
4172 | (void)SvPOK_only(dest); | |
4173 | ||
4174 | SETs(dest); | |
4175 | ||
4176 | send = s + len; | |
4177 | if (DO_UTF8(source)) { /* UTF-8 flagged string. */ | |
4178 | bool tainted = FALSE; | |
4179 | while (s < send) { | |
4180 | const STRLEN u = UTF8SKIP(s); | |
4181 | STRLEN ulen; | |
4182 | ||
4183 | _to_utf8_fold_flags(s, tmpbuf, &ulen, flags, &tainted); | |
4184 | ||
4185 | if (ulen > u && (SvLEN(dest) < (min += ulen - u))) { | |
4186 | const UV o = d - (U8*)SvPVX_const(dest); | |
4187 | SvGROW(dest, min); | |
4188 | d = (U8*)SvPVX(dest) + o; | |
4189 | } | |
4190 | ||
4191 | Copy(tmpbuf, d, ulen, U8); | |
4192 | d += ulen; | |
4193 | s += u; | |
4194 | } | |
4195 | SvUTF8_on(dest); | |
4196 | if (tainted) { | |
4197 | TAINT; | |
4198 | SvTAINTED_on(dest); | |
4199 | } | |
4200 | } /* Unflagged string */ | |
0902dd32 | 4201 | else if (len) { |
838f2281 BF |
4202 | if ( IN_LOCALE_RUNTIME ) { /* Under locale */ |
4203 | TAINT; | |
4204 | SvTAINTED_on(dest); | |
4205 | for (; s < send; d++, s++) | |
d22b930b | 4206 | *d = toFOLD_LC(*s); |
838f2281 BF |
4207 | } |
4208 | else if ( !IN_UNI_8_BIT ) { /* Under nothing, or bytes */ | |
4209 | for (; s < send; d++, s++) | |
d22b930b | 4210 | *d = toFOLD(*s); |
838f2281 BF |
4211 | } |
4212 | else { | |
d14578b8 KW |
4213 | /* For ASCII and the Latin-1 range, there's only two troublesome |
4214 | * folds, \x{DF} (\N{LATIN SMALL LETTER SHARP S}), which under full | |
22e255cb | 4215 | * casefolding becomes 'ss'; and \x{B5} (\N{MICRO SIGN}), which |
d14578b8 KW |
4216 | * under any fold becomes \x{3BC} (\N{GREEK SMALL LETTER MU}) -- |
4217 | * For the rest, the casefold is their lowercase. */ | |
838f2281 BF |
4218 | for (; s < send; d++, s++) { |
4219 | if (*s == MICRO_SIGN) { | |
d14578b8 KW |
4220 | /* \N{MICRO SIGN}'s casefold is \N{GREEK SMALL LETTER MU}, |
4221 | * which is outside of the latin-1 range. There's a couple | |
4222 | * of ways to deal with this -- khw discusses them in | |
4223 | * pp_lc/uc, so go there :) What we do here is upgrade what | |
4224 | * we had already casefolded, then enter an inner loop that | |
4225 | * appends the rest of the characters as UTF-8. */ | |
838f2281 BF |
4226 | len = d - (U8*)SvPVX_const(dest); |
4227 | SvCUR_set(dest, len); | |
4228 | len = sv_utf8_upgrade_flags_grow(dest, | |
4229 | SV_GMAGIC|SV_FORCE_UTF8_UPGRADE, | |
ea4d335b KW |
4230 | /* The max expansion for latin1 |
4231 | * chars is 1 byte becomes 2 */ | |
4232 | (send -s) * 2 + 1); | |
838f2281 BF |
4233 | d = (U8*)SvPVX(dest) + len; |
4234 | ||
a78bc3c6 KW |
4235 | Copy(GREEK_SMALL_LETTER_MU_UTF8, d, small_mu_len, U8); |
4236 | d += small_mu_len; | |
838f2281 BF |
4237 | s++; |
4238 | for (; s < send; s++) { | |
4239 | STRLEN ulen; | |
4240 | UV fc = _to_uni_fold_flags(*s, tmpbuf, &ulen, flags); | |
4241 | if UNI_IS_INVARIANT(fc) { | |
d14578b8 KW |
4242 | if (full_folding |
4243 | && *s == LATIN_SMALL_LETTER_SHARP_S) | |
4244 | { | |
838f2281 BF |
4245 | *d++ = 's'; |
4246 | *d++ = 's'; | |
4247 | } | |
4248 | else | |
4249 | *d++ = (U8)fc; | |
4250 | } | |
4251 | else { | |
4252 | Copy(tmpbuf, d, ulen, U8); | |
4253 | d += ulen; | |
4254 | } | |
4255 | } | |
4256 | break; | |
4257 | } | |
4258 | else if (full_folding && *s == LATIN_SMALL_LETTER_SHARP_S) { | |
d14578b8 KW |
4259 | /* Under full casefolding, LATIN SMALL LETTER SHARP S |
4260 | * becomes "ss", which may require growing the SV. */ | |
838f2281 BF |
4261 | if (SvLEN(dest) < ++min) { |
4262 | const UV o = d - (U8*)SvPVX_const(dest); | |
4263 | SvGROW(dest, min); | |
4264 | d = (U8*)SvPVX(dest) + o; | |
4265 | } | |
4266 | *(d)++ = 's'; | |
4267 | *d = 's'; | |
4268 | } | |
d14578b8 KW |
4269 | else { /* If it's not one of those two, the fold is their lower |
4270 | case */ | |
838f2281 BF |
4271 | *d = toLOWER_LATIN1(*s); |
4272 | } | |
4273 | } | |
4274 | } | |
4275 | } | |
4276 | *d = '\0'; | |
4277 | SvCUR_set(dest, d - (U8*)SvPVX_const(dest)); | |
4278 | ||
4279 | if (SvTAINTED(source)) | |
4280 | SvTAINT(dest); | |
4281 | SvSETMAGIC(dest); | |
4282 | RETURN; | |
4283 | } | |
4284 | ||
a0d0e21e | 4285 | /* Arrays. */ |
79072805 | 4286 | |
a0d0e21e | 4287 | PP(pp_aslice) |
79072805 | 4288 | { |
97aff369 | 4289 | dVAR; dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4290 | AV *const av = MUTABLE_AV(POPs); |
4291 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 4292 | |
a0d0e21e | 4293 | if (SvTYPE(av) == SVt_PVAV) { |
4ad10a0b VP |
4294 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
4295 | bool can_preserve = FALSE; | |
4296 | ||
4297 | if (localizing) { | |
4298 | MAGIC *mg; | |
4299 | HV *stash; | |
4300 | ||
4301 | can_preserve = SvCANEXISTDELETE(av); | |
4302 | } | |
4303 | ||
4304 | if (lval && localizing) { | |
eb578fdb | 4305 | SV **svp; |
748a9306 | 4306 | I32 max = -1; |
924508f0 | 4307 | for (svp = MARK + 1; svp <= SP; svp++) { |
4ea561bc | 4308 | const I32 elem = SvIV(*svp); |
748a9306 LW |
4309 | if (elem > max) |
4310 | max = elem; | |
4311 | } | |
4312 | if (max > AvMAX(av)) | |
4313 | av_extend(av, max); | |
4314 | } | |
4ad10a0b | 4315 | |
a0d0e21e | 4316 | while (++MARK <= SP) { |
eb578fdb | 4317 | SV **svp; |
4ea561bc | 4318 | I32 elem = SvIV(*MARK); |
4ad10a0b | 4319 | bool preeminent = TRUE; |
a0d0e21e | 4320 | |
4ad10a0b VP |
4321 | if (localizing && can_preserve) { |
4322 | /* If we can determine whether the element exist, | |
4323 | * Try to preserve the existenceness of a tied array | |
4324 | * element by using EXISTS and DELETE if possible. | |
4325 | * Fallback to FETCH and STORE otherwise. */ | |
4326 | preeminent = av_exists(av, elem); | |
4327 | } | |
4328 | ||
a0d0e21e LW |
4329 | svp = av_fetch(av, elem, lval); |
4330 | if (lval) { | |
3280af22 | 4331 | if (!svp || *svp == &PL_sv_undef) |
cea2e8a9 | 4332 | DIE(aTHX_ PL_no_aelem, elem); |
4ad10a0b VP |
4333 | if (localizing) { |
4334 | if (preeminent) | |
4335 | save_aelem(av, elem, svp); | |
4336 | else | |
4337 | SAVEADELETE(av, elem); | |
4338 | } | |
79072805 | 4339 | } |
3280af22 | 4340 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
4341 | } |
4342 | } | |
748a9306 | 4343 | if (GIMME != G_ARRAY) { |
a0d0e21e | 4344 | MARK = ORIGMARK; |
04ab2c87 | 4345 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
4346 | SP = MARK; |
4347 | } | |
79072805 LW |
4348 | RETURN; |
4349 | } | |
4350 | ||
cba5a3b0 DG |
4351 | /* Smart dereferencing for keys, values and each */ |
4352 | PP(pp_rkeys) | |
4353 | { | |
4354 | dVAR; | |
4355 | dSP; | |
4356 | dPOPss; | |
4357 | ||
7ac5715b FC |
4358 | SvGETMAGIC(sv); |
4359 | ||
4360 | if ( | |
4361 | !SvROK(sv) | |
4362 | || (sv = SvRV(sv), | |
4363 | (SvTYPE(sv) != SVt_PVHV && SvTYPE(sv) != SVt_PVAV) | |
4364 | || SvOBJECT(sv) | |
4365 | ) | |
4366 | ) { | |
4367 | DIE(aTHX_ | |
4368 | "Type of argument to %s must be unblessed hashref or arrayref", | |
4c540399 | 4369 | PL_op_desc[PL_op->op_type] ); |
cba5a3b0 DG |
4370 | } |
4371 | ||
d8065907 FC |
4372 | if (PL_op->op_flags & OPf_SPECIAL && SvTYPE(sv) == SVt_PVAV) |
4373 | DIE(aTHX_ | |
4374 | "Can't modify %s in %s", | |
4375 | PL_op_desc[PL_op->op_type], PL_op_desc[PL_op->op_next->op_type] | |
4376 | ); | |
4377 | ||
cba5a3b0 DG |
4378 | /* Delegate to correct function for op type */ |
4379 | PUSHs(sv); | |
4380 | if (PL_op->op_type == OP_RKEYS || PL_op->op_type == OP_RVALUES) { | |
4381 | return (SvTYPE(sv) == SVt_PVHV) ? Perl_do_kv(aTHX) : Perl_pp_akeys(aTHX); | |
4382 | } | |
4383 | else { | |
d14578b8 KW |
4384 | return (SvTYPE(sv) == SVt_PVHV) |
4385 | ? Perl_pp_each(aTHX) | |
4386 | : Perl_pp_aeach(aTHX); | |
cba5a3b0 DG |
4387 | } |
4388 | } | |
4389 | ||
878d132a NC |
4390 | PP(pp_aeach) |
4391 | { | |
4392 | dVAR; | |
4393 | dSP; | |
502c6561 | 4394 | AV *array = MUTABLE_AV(POPs); |
878d132a | 4395 | const I32 gimme = GIMME_V; |
453d94a9 | 4396 | IV *iterp = Perl_av_iter_p(aTHX_ array); |
878d132a NC |
4397 | const IV current = (*iterp)++; |
4398 | ||
4399 | if (current > av_len(array)) { | |
4400 | *iterp = 0; | |
4401 | if (gimme == G_SCALAR) | |
4402 | RETPUSHUNDEF; | |
4403 | else | |
4404 | RETURN; | |
4405 | } | |
4406 | ||
4407 | EXTEND(SP, 2); | |
e1dccc0d | 4408 | mPUSHi(current); |
878d132a NC |
4409 | if (gimme == G_ARRAY) { |
4410 | SV **const element = av_fetch(array, current, 0); | |
4411 | PUSHs(element ? *element : &PL_sv_undef); | |
4412 | } | |
4413 | RETURN; | |
4414 | } | |
4415 | ||
4416 | PP(pp_akeys) | |
4417 | { | |
4418 | dVAR; | |
4419 | dSP; | |
502c6561 | 4420 | AV *array = MUTABLE_AV(POPs); |
878d132a NC |
4421 | const I32 gimme = GIMME_V; |
4422 | ||
4423 | *Perl_av_iter_p(aTHX_ array) = 0; | |
4424 | ||
4425 | if (gimme == G_SCALAR) { | |
4426 | dTARGET; | |
4427 | PUSHi(av_len(array) + 1); | |
4428 | } | |
4429 | else if (gimme == G_ARRAY) { | |
4430 | IV n = Perl_av_len(aTHX_ array); | |
e1dccc0d | 4431 | IV i; |
878d132a NC |
4432 | |
4433 | EXTEND(SP, n + 1); | |
4434 | ||
cba5a3b0 | 4435 | if (PL_op->op_type == OP_AKEYS || PL_op->op_type == OP_RKEYS) { |
e1dccc0d | 4436 | for (i = 0; i <= n; i++) { |
878d132a NC |
4437 | mPUSHi(i); |
4438 | } | |
4439 | } | |
4440 | else { | |
4441 | for (i = 0; i <= n; i++) { | |
4442 | SV *const *const elem = Perl_av_fetch(aTHX_ array, i, 0); | |
4443 | PUSHs(elem ? *elem : &PL_sv_undef); | |
4444 | } | |
4445 | } | |
4446 | } | |
4447 | RETURN; | |
4448 | } | |
4449 | ||
79072805 LW |
4450 | /* Associative arrays. */ |
4451 | ||
4452 | PP(pp_each) | |
4453 | { | |
97aff369 | 4454 | dVAR; |
39644a26 | 4455 | dSP; |
85fbaab2 | 4456 | HV * hash = MUTABLE_HV(POPs); |
c07a80fd | 4457 | HE *entry; |
f54cb97a | 4458 | const I32 gimme = GIMME_V; |
8ec5e241 | 4459 | |
c07a80fd | 4460 | PUTBACK; |
c750a3ec | 4461 | /* might clobber stack_sp */ |
6d822dc4 | 4462 | entry = hv_iternext(hash); |
c07a80fd | 4463 | SPAGAIN; |
79072805 | 4464 | |
79072805 LW |
4465 | EXTEND(SP, 2); |
4466 | if (entry) { | |
1b6737cc | 4467 | SV* const sv = hv_iterkeysv(entry); |
574c8022 | 4468 | PUSHs(sv); /* won't clobber stack_sp */ |
54310121 | 4469 | if (gimme == G_ARRAY) { |
59af0135 | 4470 | SV *val; |
c07a80fd | 4471 | PUTBACK; |
c750a3ec | 4472 | /* might clobber stack_sp */ |
6d822dc4 | 4473 | val = hv_iterval(hash, entry); |
c07a80fd | 4474 | SPAGAIN; |
59af0135 | 4475 | PUSHs(val); |
79072805 | 4476 | } |
79072805 | 4477 | } |
54310121 | 4478 | else if (gimme == G_SCALAR) |
79072805 LW |
4479 | RETPUSHUNDEF; |
4480 | ||
4481 | RETURN; | |
4482 | } | |
4483 | ||
7332a6c4 VP |
4484 | STATIC OP * |
4485 | S_do_delete_local(pTHX) | |
79072805 | 4486 | { |
97aff369 | 4487 | dVAR; |
39644a26 | 4488 | dSP; |
f54cb97a | 4489 | const I32 gimme = GIMME_V; |
7332a6c4 VP |
4490 | const MAGIC *mg; |
4491 | HV *stash; | |
ca3f996a FC |
4492 | const bool sliced = !!(PL_op->op_private & OPpSLICE); |
4493 | SV *unsliced_keysv = sliced ? NULL : POPs; | |
4494 | SV * const osv = POPs; | |
eb578fdb | 4495 | SV **mark = sliced ? PL_stack_base + POPMARK : &unsliced_keysv-1; |
ca3f996a FC |
4496 | dORIGMARK; |
4497 | const bool tied = SvRMAGICAL(osv) | |
7332a6c4 | 4498 | && mg_find((const SV *)osv, PERL_MAGIC_tied); |
ca3f996a FC |
4499 | const bool can_preserve = SvCANEXISTDELETE(osv); |
4500 | const U32 type = SvTYPE(osv); | |
4501 | SV ** const end = sliced ? SP : &unsliced_keysv; | |
4502 | ||
4503 | if (type == SVt_PVHV) { /* hash element */ | |
7332a6c4 | 4504 | HV * const hv = MUTABLE_HV(osv); |
ca3f996a | 4505 | while (++MARK <= end) { |
7332a6c4 VP |
4506 | SV * const keysv = *MARK; |
4507 | SV *sv = NULL; | |
4508 | bool preeminent = TRUE; | |
4509 | if (can_preserve) | |
4510 | preeminent = hv_exists_ent(hv, keysv, 0); | |
4511 | if (tied) { | |
4512 | HE *he = hv_fetch_ent(hv, keysv, 1, 0); | |
4513 | if (he) | |
4514 | sv = HeVAL(he); | |
4515 | else | |
4516 | preeminent = FALSE; | |
4517 | } | |
4518 | else { | |
4519 | sv = hv_delete_ent(hv, keysv, 0, 0); | |
9332b95f FC |
4520 | if (preeminent) |
4521 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4522 | } |
4523 | if (preeminent) { | |
be6064fd | 4524 | if (!sv) DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
7332a6c4 VP |
4525 | save_helem_flags(hv, keysv, &sv, SAVEf_KEEPOLDELEM); |
4526 | if (tied) { | |
4527 | *MARK = sv_mortalcopy(sv); | |
4528 | mg_clear(sv); | |
4529 | } else | |
4530 | *MARK = sv; | |
4531 | } | |
4532 | else { | |
4533 | SAVEHDELETE(hv, keysv); | |
4534 | *MARK = &PL_sv_undef; | |
4535 | } | |
4536 | } | |
ca3f996a FC |
4537 | } |
4538 | else if (type == SVt_PVAV) { /* array element */ | |
7332a6c4 VP |
4539 | if (PL_op->op_flags & OPf_SPECIAL) { |
4540 | AV * const av = MUTABLE_AV(osv); | |
ca3f996a | 4541 | while (++MARK <= end) { |
7332a6c4 VP |
4542 | I32 idx = SvIV(*MARK); |
4543 | SV *sv = NULL; | |
4544 | bool preeminent = TRUE; | |
4545 | if (can_preserve) | |
4546 | preeminent = av_exists(av, idx); | |
4547 | if (tied) { | |
4548 | SV **svp = av_fetch(av, idx, 1); | |
4549 | if (svp) | |
4550 | sv = *svp; | |
4551 | else | |
4552 | preeminent = FALSE; | |
4553 | } | |
4554 | else { | |
4555 | sv = av_delete(av, idx, 0); | |
9332b95f FC |
4556 | if (preeminent) |
4557 | SvREFCNT_inc_simple_void(sv); /* De-mortalize */ | |
7332a6c4 VP |
4558 | } |
4559 | if (preeminent) { | |
4560 | save_aelem_flags(av, idx, &sv, SAVEf_KEEPOLDELEM); | |
4561 | if (tied) { | |
4562 | *MARK = sv_mortalcopy(sv); | |
4563 | mg_clear(sv); | |
4564 | } else | |
4565 | *MARK = sv; | |
4566 | } | |
4567 | else { | |
4568 | SAVEADELETE(av, idx); | |
4569 | *MARK = &PL_sv_undef; | |
4570 | } | |
4571 | } | |
4572 | } | |
ca3f996a FC |
4573 | else |
4574 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
4575 | } | |
4576 | else | |
7332a6c4 | 4577 | DIE(aTHX_ "Not a HASH reference"); |
ca3f996a | 4578 | if (sliced) { |
7332a6c4 VP |
4579 | if (gimme == G_VOID) |
4580 | SP = ORIGMARK; | |
4581 | else if (gimme == G_SCALAR) { | |
4582 | MARK = ORIGMARK; | |
4583 | if (SP > MARK) | |
4584 | *++MARK = *SP; | |
4585 | else | |
4586 | *++MARK = &PL_sv_undef; | |
4587 | SP = MARK; | |
4588 | } | |
4589 | } | |
ca3f996a FC |
4590 | else if (gimme != G_VOID) |
4591 | PUSHs(unsliced_keysv); | |
7332a6c4 VP |
4592 | |
4593 | RETURN; | |
4594 | } | |
4595 | ||
4596 | PP(pp_delete) | |
4597 | { | |
4598 | dVAR; | |
4599 | dSP; | |
4600 | I32 gimme; | |
4601 | I32 discard; | |
4602 | ||
4603 | if (PL_op->op_private & OPpLVAL_INTRO) | |
4604 | return do_delete_local(); | |
4605 | ||
4606 | gimme = GIMME_V; | |
4607 | discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 4608 | |
533c011a | 4609 | if (PL_op->op_private & OPpSLICE) { |
5f05dabc | 4610 | dMARK; dORIGMARK; |
85fbaab2 | 4611 | HV * const hv = MUTABLE_HV(POPs); |
1b6737cc | 4612 | const U32 hvtype = SvTYPE(hv); |
01020589 GS |
4613 | if (hvtype == SVt_PVHV) { /* hash element */ |
4614 | while (++MARK <= SP) { | |
1b6737cc | 4615 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
01020589 GS |
4616 | *MARK = sv ? sv : &PL_sv_undef; |
4617 | } | |
5f05dabc | 4618 | } |
6d822dc4 MS |
4619 | else if (hvtype == SVt_PVAV) { /* array element */ |
4620 | if (PL_op->op_flags & OPf_SPECIAL) { | |
4621 | while (++MARK <= SP) { | |
502c6561 | 4622 | SV * const sv = av_delete(MUTABLE_AV(hv), SvIV(*MARK), discard); |
6d822dc4 MS |
4623 | *MARK = sv ? sv : &PL_sv_undef; |
4624 | } | |
4625 | } | |
01020589 GS |
4626 | } |
4627 | else | |
4628 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 4629 | if (discard) |
4630 | SP = ORIGMARK; | |
4631 | else if (gimme == G_SCALAR) { | |
5f05dabc | 4632 | MARK = ORIGMARK; |
9111c9c0 DM |
4633 | if (SP > MARK) |
4634 | *++MARK = *SP; | |
4635 | else | |
4636 | *++MARK = &PL_sv_undef; | |
5f05dabc | 4637 | SP = MARK; |
4638 | } | |
4639 | } | |
4640 | else { | |
4641 | SV *keysv = POPs; | |
85fbaab2 | 4642 | HV * const hv = MUTABLE_HV(POPs); |
295d248e | 4643 | SV *sv = NULL; |
97fcbf96 MB |
4644 | if (SvTYPE(hv) == SVt_PVHV) |
4645 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
4646 | else if (SvTYPE(hv) == SVt_PVAV) { |
4647 | if (PL_op->op_flags & OPf_SPECIAL) | |
502c6561 | 4648 | sv = av_delete(MUTABLE_AV(hv), SvIV(keysv), discard); |
af288a60 HS |
4649 | else |
4650 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 4651 | } |
97fcbf96 | 4652 | else |
cea2e8a9 | 4653 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 4654 | if (!sv) |
3280af22 | 4655 | sv = &PL_sv_undef; |
54310121 | 4656 | if (!discard) |
4657 | PUSHs(sv); | |
79072805 | 4658 | } |
79072805 LW |
4659 | RETURN; |
4660 | } | |
4661 | ||
a0d0e21e | 4662 | PP(pp_exists) |
79072805 | 4663 | { |
97aff369 | 4664 | dVAR; |
39644a26 | 4665 | dSP; |
afebc493 GS |
4666 | SV *tmpsv; |
4667 | HV *hv; | |
4668 | ||
c7e88ff3 | 4669 | if (UNLIKELY( PL_op->op_private & OPpEXISTS_SUB )) { |
afebc493 | 4670 | GV *gv; |
0bd48802 | 4671 | SV * const sv = POPs; |
f2c0649b | 4672 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
4673 | if (cv) |
4674 | RETPUSHYES; | |
4675 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
4676 | RETPUSHYES; | |
4677 | RETPUSHNO; | |
4678 | } | |
4679 | tmpsv = POPs; | |
85fbaab2 | 4680 | hv = MUTABLE_HV(POPs); |
c7e88ff3 | 4681 | if (LIKELY( SvTYPE(hv) == SVt_PVHV )) { |
ae77835f | 4682 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 4683 | RETPUSHYES; |
ef54e1a4 JH |
4684 | } |
4685 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 | 4686 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
502c6561 | 4687 | if (av_exists(MUTABLE_AV(hv), SvIV(tmpsv))) |
01020589 GS |
4688 | RETPUSHYES; |
4689 | } | |
ef54e1a4 JH |
4690 | } |
4691 | else { | |
cea2e8a9 | 4692 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 4693 | } |
a0d0e21e LW |
4694 | RETPUSHNO; |
4695 | } | |
79072805 | 4696 | |
a0d0e21e LW |
4697 | PP(pp_hslice) |
4698 | { | |
97aff369 | 4699 | dVAR; dSP; dMARK; dORIGMARK; |
eb578fdb KW |
4700 | HV * const hv = MUTABLE_HV(POPs); |
4701 | const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
1b6737cc | 4702 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; |
d30e492c | 4703 | bool can_preserve = FALSE; |
79072805 | 4704 | |
eb85dfd3 DM |
4705 | if (localizing) { |
4706 | MAGIC *mg; | |
4707 | HV *stash; | |
4708 | ||
2c5f48c2 | 4709 | if (SvCANEXISTDELETE(hv)) |
d30e492c | 4710 | can_preserve = TRUE; |
eb85dfd3 DM |
4711 | } |
4712 | ||
6d822dc4 | 4713 | while (++MARK <= SP) { |
1b6737cc | 4714 | SV * const keysv = *MARK; |
6d822dc4 MS |
4715 | SV **svp; |
4716 | HE *he; | |
d30e492c VP |
4717 | bool preeminent = TRUE; |
4718 | ||
4719 | if (localizing && can_preserve) { | |
4720 | /* If we can determine whether the element exist, | |
4721 | * try to preserve the existenceness of a tied hash | |
4722 | * element by using EXISTS and DELETE if possible. | |
4723 | * Fallback to FETCH and STORE otherwise. */ | |
4724 | preeminent = hv_exists_ent(hv, keysv, 0); | |
6d822dc4 | 4725 | } |
eb85dfd3 | 4726 | |
6d822dc4 | 4727 | he = hv_fetch_ent(hv, keysv, lval, 0); |
fe5bfecd | 4728 | svp = he ? &HeVAL(he) : NULL; |
eb85dfd3 | 4729 | |
6d822dc4 | 4730 | if (lval) { |
746f6409 | 4731 | if (!svp || !*svp || *svp == &PL_sv_undef) { |
be2597df | 4732 | DIE(aTHX_ PL_no_helem_sv, SVfARG(keysv)); |
6d822dc4 MS |
4733 | } |
4734 | if (localizing) { | |
7a2e501a | 4735 | if (HvNAME_get(hv) && isGV(*svp)) |
159b6efe | 4736 | save_gp(MUTABLE_GV(*svp), !(PL_op->op_flags & OPf_SPECIAL)); |
47cfc530 VP |
4737 | else if (preeminent) |
4738 | save_helem_flags(hv, keysv, svp, | |
4739 | (PL_op->op_flags & OPf_SPECIAL) ? 0 : SAVEf_SETMAGIC); | |
4740 | else | |
4741 | SAVEHDELETE(hv, keysv); | |
6d822dc4 MS |
4742 | } |
4743 | } | |
746f6409 | 4744 | *MARK = svp && *svp ? *svp : &PL_sv_undef; |
79072805 | 4745 | } |
a0d0e21e LW |
4746 | if (GIMME != G_ARRAY) { |
4747 | MARK = ORIGMARK; | |
04ab2c87 | 4748 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 4749 | SP = MARK; |
79072805 | 4750 | } |
a0d0e21e LW |
4751 | RETURN; |
4752 | } | |
4753 | ||
4754 | /* List operators. */ | |
4755 | ||
4756 | PP(pp_list) | |
4757 | { | |
97aff369 | 4758 | dVAR; dSP; dMARK; |
a0d0e21e LW |
4759 | if (GIMME != G_ARRAY) { |
4760 | if (++MARK <= SP) | |
4761 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 4762 | else |
3280af22 | 4763 | *MARK = &PL_sv_undef; |
a0d0e21e | 4764 | SP = MARK; |
79072805 | 4765 | } |
a0d0e21e | 4766 | RETURN; |
79072805 LW |
4767 | } |
4768 | ||
a0d0e21e | 4769 | PP(pp_lslice) |
79072805 | 4770 | { |
97aff369 | 4771 | dVAR; |
39644a26 | 4772 | dSP; |
1b6737cc AL |
4773 | SV ** const lastrelem = PL_stack_sp; |
4774 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
4775 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
eb578fdb | 4776 | SV ** const firstrelem = lastlelem + 1; |
42e73ed0 | 4777 | I32 is_something_there = FALSE; |
1b6737cc | 4778 | |
eb578fdb KW |
4779 | const I32 max = lastrelem - lastlelem; |
4780 | SV **lelem; | |
a0d0e21e LW |
4781 | |
4782 | if (GIMME != G_ARRAY) { | |
4ea561bc | 4783 | I32 ix = SvIV(*lastlelem); |
748a9306 LW |
4784 | if (ix < 0) |
4785 | ix += max; | |
a0d0e21e | 4786 | if (ix < 0 || ix >= max) |
3280af22 | 4787 | *firstlelem = &PL_sv_undef; |
a0d0e21e LW |
4788 | else |
4789 | *firstlelem = firstrelem[ix]; | |
4790 | SP = firstlelem; | |
4791 | RETURN; | |
4792 | } | |
4793 | ||
4794 | if (max == 0) { | |
4795 | SP = firstlelem - 1; | |
4796 | RETURN; | |
4797 | } | |
4798 | ||
4799 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
4ea561bc | 4800 | I32 ix = SvIV(*lelem); |
c73bf8e3 | 4801 | if (ix < 0) |
a0d0e21e | 4802 | ix += max; |
c73bf8e3 HS |
4803 | if (ix < 0 || ix >= max) |
4804 | *lelem = &PL_sv_undef; | |
4805 | else { | |
4806 | is_something_there = TRUE; | |
4807 | if (!(*lelem = firstrelem[ix])) | |
3280af22 | 4808 | *lelem = &PL_sv_undef; |
748a9306 | 4809 | } |
79072805 | 4810 | } |
4633a7c4 LW |
4811 | if (is_something_there) |
4812 | SP = lastlelem; | |
4813 | else | |
4814 | SP = firstlelem - 1; | |
79072805 LW |
4815 | RETURN; |
4816 | } | |
4817 | ||
a0d0e21e LW |
4818 | PP(pp_anonlist) |
4819 | { | |
31476221 | 4820 | dVAR; dSP; dMARK; |
1b6737cc | 4821 | const I32 items = SP - MARK; |
ad64d0ec | 4822 | SV * const av = MUTABLE_SV(av_make(items, MARK+1)); |
31476221 | 4823 | SP = MARK; |
6e449a3a MHM |
4824 | mXPUSHs((PL_op->op_flags & OPf_SPECIAL) |
4825 | ? newRV_noinc(av) : av); | |
a0d0e21e LW |
4826 | RETURN; |
4827 | } | |
4828 | ||
4829 | PP(pp_anonhash) | |
79072805 | 4830 | { |
97aff369 | 4831 | dVAR; dSP; dMARK; dORIGMARK; |
67e67fd7 | 4832 | HV* const hv = newHV(); |
8d455b9f | 4833 | SV* const retval = sv_2mortal( PL_op->op_flags & OPf_SPECIAL |
67e67fd7 | 4834 | ? newRV_noinc(MUTABLE_SV(hv)) |
8d455b9f | 4835 | : MUTABLE_SV(hv) ); |
a0d0e21e LW |
4836 | |
4837 | while (MARK < SP) { | |
3ed356df FC |
4838 | SV * const key = |
4839 | (MARK++, SvGMAGICAL(*MARK) ? sv_mortalcopy(*MARK) : *MARK); | |
4840 | SV *val; | |
a0d0e21e | 4841 | if (MARK < SP) |
3ed356df FC |
4842 | { |
4843 | MARK++; | |
4844 | SvGETMAGIC(*MARK); | |
4845 | val = newSV(0); | |
4846 | sv_setsv(val, *MARK); | |
4847 | } | |
a2a5de95 | 4848 | else |
3ed356df | 4849 | { |
a2a5de95 | 4850 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
3ed356df FC |
4851 | val = newSV(0); |
4852 | } | |
f12c7020 | 4853 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 4854 | } |
a0d0e21e | 4855 | SP = ORIGMARK; |
8d455b9f | 4856 | XPUSHs(retval); |
79072805 LW |
4857 | RETURN; |
4858 | } | |
4859 | ||
d4fc4415 FC |
4860 | static AV * |
4861 | S_deref_plain_array(pTHX_ AV *ary) | |
4862 | { | |
4863 | if (SvTYPE(ary) == SVt_PVAV) return ary; | |
d2d95e13 | 4864 | SvGETMAGIC((SV *)ary); |
d4fc4415 FC |
4865 | if (!SvROK(ary) || SvTYPE(SvRV(ary)) != SVt_PVAV) |
4866 | Perl_die(aTHX_ "Not an ARRAY reference"); | |
4867 | else if (SvOBJECT(SvRV(ary))) | |
4868 | Perl_die(aTHX_ "Not an unblessed ARRAY reference"); | |
4869 | return (AV *)SvRV(ary); | |
4870 | } | |
4871 | ||
4872 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) | |
4873 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4874 | ({ \ | |
4875 | AV *aRrRay = ary; \ | |
4876 | SvTYPE(aRrRay) == SVt_PVAV \ | |
4877 | ? aRrRay \ | |
4878 | : S_deref_plain_array(aTHX_ aRrRay); \ | |
4879 | }) | |
4880 | #else | |
4881 | # define DEREF_PLAIN_ARRAY(ary) \ | |
4882 | ( \ | |
3b0f6d32 | 4883 | PL_Sv = (SV *)(ary), \ |
d4fc4415 FC |
4884 | SvTYPE(PL_Sv) == SVt_PVAV \ |
4885 | ? (AV *)PL_Sv \ | |
3b0f6d32 | 4886 | : S_deref_plain_array(aTHX_ (AV *)PL_Sv) \ |
d4fc4415 FC |
4887 | ) |
4888 | #endif | |
4889 | ||
a0d0e21e | 4890 | PP(pp_splice) |
79072805 | 4891 | { |
27da23d5 | 4892 | dVAR; dSP; dMARK; dORIGMARK; |
5cd408a2 | 4893 | int num_args = (SP - MARK); |
eb578fdb KW |
4894 | AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
4895 | SV **src; | |
4896 | SV **dst; | |
4897 | I32 i; | |
4898 | I32 offset; | |
4899 | I32 length; | |
a0d0e21e LW |
4900 | I32 newlen; |
4901 | I32 after; | |
4902 | I32 diff; | |
ad64d0ec | 4903 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 4904 | |
1b6737cc | 4905 | if (mg) { |
3e0cb5de | 4906 | return Perl_tied_method(aTHX_ SV_CONST(SPLICE), mark - 1, MUTABLE_SV(ary), mg, |
af71faff NC |
4907 | GIMME_V | TIED_METHOD_ARGUMENTS_ON_STACK, |
4908 | sp - mark); | |
93965878 | 4909 | } |
79072805 | 4910 | |
a0d0e21e | 4911 | SP++; |
79072805 | 4912 | |
a0d0e21e | 4913 | if (++MARK < SP) { |
4ea561bc | 4914 | offset = i = SvIV(*MARK); |
a0d0e21e | 4915 | if (offset < 0) |
93965878 | 4916 | offset += AvFILLp(ary) + 1; |
84902520 | 4917 | if (offset < 0) |
cea2e8a9 | 4918 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
4919 | if (++MARK < SP) { |
4920 | length = SvIVx(*MARK++); | |
48cdf507 GA |
4921 | if (length < 0) { |
4922 | length += AvFILLp(ary) - offset + 1; | |
4923 | if (length < 0) | |
4924 | length = 0; | |
4925 | } | |
79072805 LW |
4926 | } |
4927 | else | |
a0d0e21e | 4928 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 4929 | } |
a0d0e21e LW |
4930 | else { |
4931 | offset = 0; | |
4932 | length = AvMAX(ary) + 1; | |
4933 | } | |
8cbc2e3b | 4934 | if (offset > AvFILLp(ary) + 1) { |
5cd408a2 EB |
4935 | if (num_args > 2) |
4936 | Perl_ck_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); | |
93965878 | 4937 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 4938 | } |
93965878 | 4939 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
4940 | if (after < 0) { /* not that much array */ |
4941 | length += after; /* offset+length now in array */ | |
4942 | after = 0; | |
4943 | if (!AvALLOC(ary)) | |
4944 | av_extend(ary, 0); | |
4945 | } | |
4946 | ||
4947 | /* At this point, MARK .. SP-1 is our new LIST */ | |
4948 | ||
4949 | newlen = SP - MARK; | |
4950 | diff = newlen - length; | |
13d7cbc1 GS |
4951 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
4952 | av_reify(ary); | |
a0d0e21e | 4953 | |
50528de0 WL |
4954 | /* make new elements SVs now: avoid problems if they're from the array */ |
4955 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 4956 | SV * const h = *dst; |
f2b990bf | 4957 | *dst++ = newSVsv(h); |
50528de0 WL |
4958 | } |
4959 | ||
a0d0e21e | 4960 | if (diff < 0) { /* shrinking the area */ |
95b63a38 | 4961 | SV **tmparyval = NULL; |
a0d0e21e | 4962 | if (newlen) { |
a02a5408 | 4963 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 4964 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 4965 | } |
a0d0e21e LW |
4966 | |
4967 | MARK = ORIGMARK + 1; | |
4968 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
4969 | MEXTEND(MARK, length); | |
4970 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
4971 | if (AvREAL(ary)) { | |
bbce6d69 | 4972 | EXTEND_MORTAL(length); |
36477c24 | 4973 | for (i = length, dst = MARK; i; i--) { |
486ec47a | 4974 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 4975 | dst++; |
4976 | } | |
a0d0e21e LW |
4977 | } |
4978 | MARK += length - 1; | |
79072805 | 4979 | } |
a0d0e21e LW |
4980 | else { |
4981 | *MARK = AvARRAY(ary)[offset+length-1]; | |
4982 | if (AvREAL(ary)) { | |
d689ffdd | 4983 | sv_2mortal(*MARK); |
a0d0e21e LW |
4984 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
4985 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 4986 | } |
a0d0e21e | 4987 | } |
93965878 | 4988 | AvFILLp(ary) += diff; |
a0d0e21e LW |
4989 | |
4990 | /* pull up or down? */ | |
4991 | ||
4992 | if (offset < after) { /* easier to pull up */ | |
4993 | if (offset) { /* esp. if nothing to pull */ | |
4994 | src = &AvARRAY(ary)[offset-1]; | |
4995 | dst = src - diff; /* diff is negative */ | |
4996 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
4997 | *dst-- = *src--; | |
79072805 | 4998 | } |
a0d0e21e | 4999 | dst = AvARRAY(ary); |
9c6bc640 | 5000 | AvARRAY(ary) = AvARRAY(ary) - diff; /* diff is negative */ |
a0d0e21e LW |
5001 | AvMAX(ary) += diff; |
5002 | } | |
5003 | else { | |
5004 | if (after) { /* anything to pull down? */ | |
5005 | src = AvARRAY(ary) + offset + length; | |
5006 | dst = src + diff; /* diff is negative */ | |
5007 | Move(src, dst, after, SV*); | |
79072805 | 5008 | } |
93965878 | 5009 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
5010 | /* avoid later double free */ |
5011 | } | |
5012 | i = -diff; | |
5013 | while (i) | |
3280af22 | 5014 | dst[--i] = &PL_sv_undef; |
a0d0e21e LW |
5015 | |
5016 | if (newlen) { | |
50528de0 | 5017 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
5018 | Safefree(tmparyval); |
5019 | } | |
5020 | } | |
5021 | else { /* no, expanding (or same) */ | |
d3961450 | 5022 | SV** tmparyval = NULL; |
a0d0e21e | 5023 | if (length) { |
a02a5408 | 5024 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
5025 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
5026 | } | |
5027 | ||
5028 | if (diff > 0) { /* expanding */ | |
a0d0e21e | 5029 | /* push up or down? */ |
a0d0e21e LW |
5030 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { |
5031 | if (offset) { | |
5032 | src = AvARRAY(ary); | |
5033 | dst = src - diff; | |
5034 | Move(src, dst, offset, SV*); | |
79072805 | 5035 | } |
9c6bc640 | 5036 | AvARRAY(ary) = AvARRAY(ary) - diff;/* diff is positive */ |
a0d0e21e | 5037 | AvMAX(ary) += diff; |
93965878 | 5038 | AvFILLp(ary) += diff; |
79072805 LW |
5039 | } |
5040 | else { | |
93965878 NIS |
5041 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
5042 | av_extend(ary, AvFILLp(ary) + diff); | |
5043 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
5044 | |
5045 | if (after) { | |
93965878 | 5046 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
5047 | src = dst - diff; |
5048 | for (i = after; i; i--) { | |
5049 | *dst-- = *src--; | |
5050 | } | |
79072805 LW |
5051 | } |
5052 | } | |
a0d0e21e LW |
5053 | } |
5054 | ||
50528de0 WL |
5055 | if (newlen) { |
5056 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 5057 | } |
50528de0 | 5058 | |
a0d0e21e LW |
5059 | MARK = ORIGMARK + 1; |
5060 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
5061 | if (length) { | |
5062 | Copy(tmparyval, MARK, length, SV*); | |
5063 | if (AvREAL(ary)) { | |
bbce6d69 | 5064 | EXTEND_MORTAL(length); |
36477c24 | 5065 | for (i = length, dst = MARK; i; i--) { |
486ec47a | 5066 | sv_2mortal(*dst); /* free them eventually */ |
36477c24 | 5067 | dst++; |
5068 | } | |
79072805 LW |
5069 | } |
5070 | } | |
a0d0e21e LW |
5071 | MARK += length - 1; |
5072 | } | |
5073 | else if (length--) { | |
5074 | *MARK = tmparyval[length]; | |
5075 | if (AvREAL(ary)) { | |
d689ffdd | 5076 | sv_2mortal(*MARK); |
a0d0e21e LW |
5077 | while (length-- > 0) |
5078 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 5079 | } |
79072805 | 5080 | } |
a0d0e21e | 5081 | else |
3280af22 | 5082 | *MARK = &PL_sv_undef; |
d3961450 | 5083 | Safefree(tmparyval); |
79072805 | 5084 | } |
474af990 FR |
5085 | |
5086 | if (SvMAGICAL(ary)) | |
5087 | mg_set(MUTABLE_SV(ary)); | |
5088 | ||
a0d0e21e | 5089 | SP = MARK; |
79072805 LW |
5090 | RETURN; |
5091 | } | |
5092 | ||
a0d0e21e | 5093 | PP(pp_push) |
79072805 | 5094 | { |
27da23d5 | 5095 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
eb578fdb | 5096 | AV * const ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5097 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
79072805 | 5098 | |
1b6737cc | 5099 | if (mg) { |
ad64d0ec | 5100 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
93965878 NIS |
5101 | PUSHMARK(MARK); |
5102 | PUTBACK; | |
d343c3ef | 5103 | ENTER_with_name("call_PUSH"); |
3e0cb5de | 5104 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5105 | LEAVE_with_name("call_PUSH"); |
93965878 | 5106 | SPAGAIN; |
93965878 | 5107 | } |
a60c0954 | 5108 | else { |
cb077ed2 | 5109 | if (SvREADONLY(ary) && MARK < SP) Perl_croak_no_modify(); |
89c14e2e | 5110 | PL_delaymagic = DM_DELAY; |
a60c0954 | 5111 | for (++MARK; MARK <= SP; MARK++) { |
3ed356df FC |
5112 | SV *sv; |
5113 | if (*MARK) SvGETMAGIC(*MARK); | |
5114 | sv = newSV(0); | |
a60c0954 | 5115 | if (*MARK) |
3ed356df | 5116 | sv_setsv_nomg(sv, *MARK); |
0a75904b | 5117 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 5118 | } |
354b0578 | 5119 | if (PL_delaymagic & DM_ARRAY_ISA) |
ad64d0ec | 5120 | mg_set(MUTABLE_SV(ary)); |
89c14e2e BB |
5121 | |
5122 | PL_delaymagic = 0; | |
6eeabd23 VP |
5123 | } |
5124 | SP = ORIGMARK; | |
5125 | if (OP_GIMME(PL_op, 0) != G_VOID) { | |
5126 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 5127 | } |
79072805 LW |
5128 | RETURN; |
5129 | } | |
5130 | ||
a0d0e21e | 5131 | PP(pp_shift) |
79072805 | 5132 | { |
97aff369 | 5133 | dVAR; |
39644a26 | 5134 | dSP; |
538f5756 | 5135 | AV * const av = PL_op->op_flags & OPf_SPECIAL |
d4fc4415 | 5136 | ? MUTABLE_AV(GvAV(PL_defgv)) : DEREF_PLAIN_ARRAY(MUTABLE_AV(POPs)); |
789b4bc9 | 5137 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 5138 | EXTEND(SP, 1); |
c2b4a044 | 5139 | assert (sv); |
d689ffdd | 5140 | if (AvREAL(av)) |
a0d0e21e LW |
5141 | (void)sv_2mortal(sv); |
5142 | PUSHs(sv); | |
79072805 | 5143 | RETURN; |
79072805 LW |
5144 | } |
5145 | ||
a0d0e21e | 5146 | PP(pp_unshift) |
79072805 | 5147 | { |
27da23d5 | 5148 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
eb578fdb | 5149 | AV *ary = DEREF_PLAIN_ARRAY(MUTABLE_AV(*++MARK)); |
ad64d0ec | 5150 | const MAGIC * const mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied); |
93965878 | 5151 | |
1b6737cc | 5152 | if (mg) { |
ad64d0ec | 5153 | *MARK-- = SvTIED_obj(MUTABLE_SV(ary), mg); |
7fd66d9d | 5154 | PUSHMARK(MARK); |
93965878 | 5155 | PUTBACK; |
d343c3ef | 5156 | ENTER_with_name("call_UNSHIFT"); |
36925d9e | 5157 | call_sv(SV_CONST(UNSHIFT),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5158 | LEAVE_with_name("call_UNSHIFT"); |
93965878 | 5159 | SPAGAIN; |
93965878 | 5160 | } |
a60c0954 | 5161 | else { |
eb578fdb | 5162 | I32 i = 0; |
a60c0954 NIS |
5163 | av_unshift(ary, SP - MARK); |
5164 | while (MARK < SP) { | |
1b6737cc | 5165 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
5166 | (void)av_store(ary, i++, sv); |
5167 | } | |
79072805 | 5168 | } |
a0d0e21e | 5169 | SP = ORIGMARK; |
6eeabd23 | 5170 | if (OP_GIMME(PL_op, 0) != G_VOID) { |
5658d0a9 LR |
5171 | PUSHi( AvFILL(ary) + 1 ); |
5172 | } | |
79072805 | 5173 | RETURN; |
79072805 LW |
5174 | } |
5175 | ||
a0d0e21e | 5176 | PP(pp_reverse) |
79072805 | 5177 | { |
97aff369 | 5178 | dVAR; dSP; dMARK; |
79072805 | 5179 | |
a0d0e21e | 5180 | if (GIMME == G_ARRAY) { |
484c818f VP |
5181 | if (PL_op->op_private & OPpREVERSE_INPLACE) { |
5182 | AV *av; | |
5183 | ||
5184 | /* See pp_sort() */ | |
5185 | assert( MARK+1 == SP && *SP && SvTYPE(*SP) == SVt_PVAV); | |
5186 | (void)POPMARK; /* remove mark associated with ex-OP_AASSIGN */ | |
5187 | av = MUTABLE_AV((*SP)); | |
5188 | /* In-place reversing only happens in void context for the array | |
5189 | * assignment. We don't need to push anything on the stack. */ | |
5190 | SP = MARK; | |
5191 | ||
5192 | if (SvMAGICAL(av)) { | |
5193 | I32 i, j; | |
eb578fdb | 5194 | SV *tmp = sv_newmortal(); |
484c818f VP |
5195 | /* For SvCANEXISTDELETE */ |
5196 | HV *stash; | |
5197 | const MAGIC *mg; | |
5198 | bool can_preserve = SvCANEXISTDELETE(av); | |
5199 | ||
5200 | for (i = 0, j = av_len(av); i < j; ++i, --j) { | |
eb578fdb | 5201 | SV *begin, *end; |
484c818f VP |
5202 | |
5203 | if (can_preserve) { | |
5204 | if (!av_exists(av, i)) { | |
5205 | if (av_exists(av, j)) { | |
eb578fdb | 5206 | SV *sv = av_delete(av, j, 0); |
484c818f VP |
5207 | begin = *av_fetch(av, i, TRUE); |
5208 | sv_setsv_mg(begin, sv); | |
5209 | } | |
5210 | continue; | |
5211 | } | |
5212 | else if (!av_exists(av, j)) { | |
eb578fdb | 5213 | SV *sv = av_delete(av, i, 0); |
484c818f VP |
5214 | end = *av_fetch(av, j, TRUE); |
5215 | sv_setsv_mg(end, sv); | |
5216 | continue; | |
5217 | } | |
5218 | } | |
5219 | ||
5220 | begin = *av_fetch(av, i, TRUE); | |
5221 | end = *av_fetch(av, j, TRUE); | |
5222 | sv_setsv(tmp, begin); | |
5223 | sv_setsv_mg(begin, end); | |
5224 | sv_setsv_mg(end, tmp); | |
5225 | } | |
5226 | } | |
5227 | else { | |
5228 | SV **begin = AvARRAY(av); | |
484c818f | 5229 | |
95a26d8e VP |
5230 | if (begin) { |
5231 | SV **end = begin + AvFILLp(av); | |
5232 | ||
5233 | while (begin < end) { | |
eb578fdb | 5234 | SV * const tmp = *begin; |
95a26d8e VP |
5235 | *begin++ = *end; |
5236 | *end-- = tmp; | |
5237 | } | |
484c818f VP |
5238 | } |
5239 | } | |
5240 | } | |
5241 | else { | |
5242 | SV **oldsp = SP; | |
5243 | MARK++; | |
5244 | while (MARK < SP) { | |
eb578fdb | 5245 | SV * const tmp = *MARK; |
484c818f VP |
5246 | *MARK++ = *SP; |
5247 | *SP-- = tmp; | |
5248 | } | |
5249 | /* safe as long as stack cannot get extended in the above */ | |
5250 | SP = oldsp; | |
a0d0e21e | 5251 | } |
79072805 LW |
5252 | } |
5253 | else { | |
eb578fdb KW |
5254 | char *up; |
5255 | char *down; | |
5256 | I32 tmp; | |
a0d0e21e LW |
5257 | dTARGET; |
5258 | STRLEN len; | |
79072805 | 5259 | |
7e2040f0 | 5260 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 5261 | if (SP - MARK > 1) |
3280af22 | 5262 | do_join(TARG, &PL_sv_no, MARK, SP); |
1e21d011 | 5263 | else { |
789bd863 | 5264 | sv_setsv(TARG, SP > MARK ? *SP : find_rundefsv()); |
1e21d011 B |
5265 | if (! SvOK(TARG) && ckWARN(WARN_UNINITIALIZED)) |
5266 | report_uninit(TARG); | |
5267 | } | |
5268 | ||
a0d0e21e LW |
5269 | up = SvPV_force(TARG, len); |
5270 | if (len > 1) { | |
7e2040f0 | 5271 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 5272 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 5273 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 5274 | while (s < send) { |
d742c382 | 5275 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
5276 | s++; |
5277 | continue; | |
5278 | } | |
5279 | else { | |
4b88fb76 | 5280 | if (!utf8_to_uvchr_buf(s, send, 0)) |
a0dbb045 | 5281 | break; |
dfe13c55 | 5282 | up = (char*)s; |
a0ed51b3 | 5283 | s += UTF8SKIP(s); |
dfe13c55 | 5284 | down = (char*)(s - 1); |
a0dbb045 | 5285 | /* reverse this character */ |
a0ed51b3 LW |
5286 | while (down > up) { |
5287 | tmp = *up; | |
5288 | *up++ = *down; | |
eb160463 | 5289 | *down-- = (char)tmp; |
a0ed51b3 LW |
5290 | } |
5291 | } | |
5292 | } | |
5293 | up = SvPVX(TARG); | |
5294 | } | |
a0d0e21e LW |
5295 | down = SvPVX(TARG) + len - 1; |
5296 | while (down > up) { | |
5297 | tmp = *up; | |
5298 | *up++ = *down; | |
eb160463 | 5299 | *down-- = (char)tmp; |
a0d0e21e | 5300 | } |
3aa33fe5 | 5301 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 5302 | } |
a0d0e21e LW |
5303 | SP = MARK + 1; |
5304 | SETTARG; | |
79072805 | 5305 | } |
a0d0e21e | 5306 | RETURN; |
79072805 LW |
5307 | } |
5308 | ||
a0d0e21e | 5309 | PP(pp_split) |
79072805 | 5310 | { |
27da23d5 | 5311 | dVAR; dSP; dTARG; |
a0d0e21e | 5312 | AV *ary; |
eb578fdb | 5313 | IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 5314 | SV * const sv = POPs; |
a0d0e21e | 5315 | STRLEN len; |
eb578fdb | 5316 | const char *s = SvPV_const(sv, len); |
1b6737cc | 5317 | const bool do_utf8 = DO_UTF8(sv); |
727b7506 | 5318 | const char *strend = s + len; |
eb578fdb KW |
5319 | PMOP *pm; |
5320 | REGEXP *rx; | |
5321 | SV *dstr; | |
5322 | const char *m; | |
a0d0e21e | 5323 | I32 iters = 0; |
d14578b8 KW |
5324 | const STRLEN slen = do_utf8 |
5325 | ? utf8_length((U8*)s, (U8*)strend) | |
5326 | : (STRLEN)(strend - s); | |
792b2c16 | 5327 | I32 maxiters = slen + 10; |
c1a7495a | 5328 | I32 trailing_empty = 0; |
727b7506 | 5329 | const char *orig; |
1b6737cc | 5330 | const I32 origlimit = limit; |
a0d0e21e LW |
5331 | I32 realarray = 0; |
5332 | I32 base; | |
f54cb97a | 5333 | const I32 gimme = GIMME_V; |
941446f6 | 5334 | bool gimme_scalar; |
f54cb97a | 5335 | const I32 oldsave = PL_savestack_ix; |
437d3b4e | 5336 | U32 make_mortal = SVs_TEMP; |
7fba1cd6 | 5337 | bool multiline = 0; |
b37c2d43 | 5338 | MAGIC *mg = NULL; |
79072805 | 5339 | |
44a8e56a | 5340 | #ifdef DEBUGGING |
5341 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
5342 | #else | |
5343 | pm = (PMOP*)POPs; | |
5344 | #endif | |
a0d0e21e | 5345 | if (!pm || !s) |
5637ef5b | 5346 | DIE(aTHX_ "panic: pp_split, pm=%p, s=%p", pm, s); |
aaa362c4 | 5347 | rx = PM_GETRE(pm); |
bbce6d69 | 5348 | |
a62b1201 | 5349 | TAINT_IF(get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET && |
dbc200c5 | 5350 | (RX_EXTFLAGS(rx) & (RXf_WHITE | RXf_SKIPWHITE))); |
bbce6d69 | 5351 | |
971a9dd3 | 5352 | #ifdef USE_ITHREADS |
20e98b0f | 5353 | if (pm->op_pmreplrootu.op_pmtargetoff) { |
159b6efe | 5354 | ary = GvAVn(MUTABLE_GV(PAD_SVl(pm->op_pmreplrootu.op_pmtargetoff))); |
20e98b0f | 5355 | } |
971a9dd3 | 5356 | #else |
20e98b0f NC |
5357 | if (pm->op_pmreplrootu.op_pmtargetgv) { |
5358 | ary = GvAVn(pm->op_pmreplrootu.op_pmtargetgv); | |
971a9dd3 | 5359 | } |
20e98b0f | 5360 | #endif |
79072805 | 5361 | else |
7d49f689 | 5362 | ary = NULL; |
bcea25a7 | 5363 | if (ary) { |
a0d0e21e | 5364 | realarray = 1; |
8ec5e241 | 5365 | PUTBACK; |
a0d0e21e LW |
5366 | av_extend(ary,0); |
5367 | av_clear(ary); | |
8ec5e241 | 5368 | SPAGAIN; |
ad64d0ec | 5369 | if ((mg = SvTIED_mg((const SV *)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 5370 | PUSHMARK(SP); |
ad64d0ec | 5371 | XPUSHs(SvTIED_obj(MUTABLE_SV(ary), mg)); |
8ec5e241 NIS |
5372 | } |
5373 | else { | |
1c0b011c | 5374 | if (!AvREAL(ary)) { |
1b6737cc | 5375 | I32 i; |
1c0b011c | 5376 | AvREAL_on(ary); |
abff13bb | 5377 | AvREIFY_off(ary); |
1c0b011c | 5378 | for (i = AvFILLp(ary); i >= 0; i--) |
d14578b8 | 5379 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
5380 | } |
5381 | /* temporarily switch stacks */ | |
8b7059b1 | 5382 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 5383 | make_mortal = 0; |
1c0b011c | 5384 | } |
79072805 | 5385 | } |
3280af22 | 5386 | base = SP - PL_stack_base; |
a0d0e21e | 5387 | orig = s; |
dbc200c5 | 5388 | if (RX_EXTFLAGS(rx) & RXf_SKIPWHITE) { |
613f191e | 5389 | if (do_utf8) { |
76a77b1b | 5390 | while (isSPACE_utf8(s)) |
613f191e TS |
5391 | s += UTF8SKIP(s); |
5392 | } | |
a62b1201 | 5393 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) { |
bbce6d69 | 5394 | while (isSPACE_LC(*s)) |
5395 | s++; | |
5396 | } | |
5397 | else { | |
5398 | while (isSPACE(*s)) | |
5399 | s++; | |
5400 | } | |
a0d0e21e | 5401 | } |
73134a2e | 5402 | if (RX_EXTFLAGS(rx) & RXf_PMf_MULTILINE) { |
7fba1cd6 | 5403 | multiline = 1; |
c07a80fd | 5404 | } |
5405 | ||
941446f6 FC |
5406 | gimme_scalar = gimme == G_SCALAR && !ary; |
5407 | ||
a0d0e21e LW |
5408 | if (!limit) |
5409 | limit = maxiters + 2; | |
dbc200c5 | 5410 | if (RX_EXTFLAGS(rx) & RXf_WHITE) { |
a0d0e21e | 5411 | while (--limit) { |
bbce6d69 | 5412 | m = s; |
8727f688 YO |
5413 | /* this one uses 'm' and is a negative test */ |
5414 | if (do_utf8) { | |
76a77b1b | 5415 | while (m < strend && ! isSPACE_utf8(m) ) { |
613f191e | 5416 | const int t = UTF8SKIP(m); |
76a77b1b | 5417 | /* isSPACE_utf8 returns FALSE for malform utf8 */ |
613f191e TS |
5418 | if (strend - m < t) |
5419 | m = strend; | |
5420 | else | |
5421 | m += t; | |
5422 | } | |
a62b1201 | 5423 | } |
d14578b8 KW |
5424 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5425 | { | |
8727f688 YO |
5426 | while (m < strend && !isSPACE_LC(*m)) |
5427 | ++m; | |
5428 | } else { | |
5429 | while (m < strend && !isSPACE(*m)) | |
5430 | ++m; | |
5431 | } | |
a0d0e21e LW |
5432 | if (m >= strend) |
5433 | break; | |
bbce6d69 | 5434 | |
c1a7495a BB |
5435 | if (gimme_scalar) { |
5436 | iters++; | |
5437 | if (m-s == 0) | |
5438 | trailing_empty++; | |
5439 | else | |
5440 | trailing_empty = 0; | |
5441 | } else { | |
5442 | dstr = newSVpvn_flags(s, m-s, | |
5443 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5444 | XPUSHs(dstr); | |
5445 | } | |
bbce6d69 | 5446 | |
613f191e TS |
5447 | /* skip the whitespace found last */ |
5448 | if (do_utf8) | |
5449 | s = m + UTF8SKIP(m); | |
5450 | else | |
5451 | s = m + 1; | |
5452 | ||
8727f688 YO |
5453 | /* this one uses 's' and is a positive test */ |
5454 | if (do_utf8) { | |
76a77b1b | 5455 | while (s < strend && isSPACE_utf8(s) ) |
8727f688 | 5456 | s += UTF8SKIP(s); |
a62b1201 | 5457 | } |
d14578b8 KW |
5458 | else if (get_regex_charset(RX_EXTFLAGS(rx)) == REGEX_LOCALE_CHARSET) |
5459 | { | |
8727f688 YO |
5460 | while (s < strend && isSPACE_LC(*s)) |
5461 | ++s; | |
5462 | } else { | |
5463 | while (s < strend && isSPACE(*s)) | |
5464 | ++s; | |
5465 | } | |
79072805 LW |
5466 | } |
5467 | } | |
07bc277f | 5468 | else if (RX_EXTFLAGS(rx) & RXf_START_ONLY) { |
a0d0e21e | 5469 | while (--limit) { |
a6e20a40 AL |
5470 | for (m = s; m < strend && *m != '\n'; m++) |
5471 | ; | |
a0d0e21e LW |
5472 | m++; |
5473 | if (m >= strend) | |
5474 | break; | |
c1a7495a BB |
5475 | |
5476 | if (gimme_scalar) { | |
5477 | iters++; | |
5478 | if (m-s == 0) | |
5479 | trailing_empty++; | |
5480 | else | |
5481 | trailing_empty = 0; | |
5482 | } else { | |
5483 | dstr = newSVpvn_flags(s, m-s, | |
5484 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5485 | XPUSHs(dstr); | |
5486 | } | |
a0d0e21e LW |
5487 | s = m; |
5488 | } | |
5489 | } | |
07bc277f | 5490 | else if (RX_EXTFLAGS(rx) & RXf_NULL && !(s >= strend)) { |
640f820d AB |
5491 | /* |
5492 | Pre-extend the stack, either the number of bytes or | |
5493 | characters in the string or a limited amount, triggered by: | |
5494 | ||
5495 | my ($x, $y) = split //, $str; | |
5496 | or | |
5497 | split //, $str, $i; | |
5498 | */ | |
c1a7495a BB |
5499 | if (!gimme_scalar) { |
5500 | const U32 items = limit - 1; | |
5501 | if (items < slen) | |
5502 | EXTEND(SP, items); | |
5503 | else | |
5504 | EXTEND(SP, slen); | |
5505 | } | |
640f820d | 5506 | |
e9515b0f AB |
5507 | if (do_utf8) { |
5508 | while (--limit) { | |
5509 | /* keep track of how many bytes we skip over */ | |
5510 | m = s; | |
640f820d | 5511 | s += UTF8SKIP(s); |
c1a7495a BB |
5512 | if (gimme_scalar) { |
5513 | iters++; | |
5514 | if (s-m == 0) | |
5515 | trailing_empty++; | |
5516 | else | |
5517 | trailing_empty = 0; | |
5518 | } else { | |
5519 | dstr = newSVpvn_flags(m, s-m, SVf_UTF8 | make_mortal); | |
640f820d | 5520 | |
c1a7495a BB |
5521 | PUSHs(dstr); |
5522 | } | |
640f820d | 5523 | |
e9515b0f AB |
5524 | if (s >= strend) |
5525 | break; | |
5526 | } | |
5527 | } else { | |
5528 | while (--limit) { | |
c1a7495a BB |
5529 | if (gimme_scalar) { |
5530 | iters++; | |
5531 | } else { | |
5532 | dstr = newSVpvn(s, 1); | |
e9515b0f | 5533 | |
e9515b0f | 5534 | |
c1a7495a BB |
5535 | if (make_mortal) |
5536 | sv_2mortal(dstr); | |
640f820d | 5537 | |
c1a7495a BB |
5538 | PUSHs(dstr); |
5539 | } | |
5540 | ||
5541 | s++; | |
e9515b0f AB |
5542 | |
5543 | if (s >= strend) | |
5544 | break; | |
5545 | } | |
640f820d AB |
5546 | } |
5547 | } | |
3c8556c3 | 5548 | else if (do_utf8 == (RX_UTF8(rx) != 0) && |
07bc277f NC |
5549 | (RX_EXTFLAGS(rx) & RXf_USE_INTUIT) && !RX_NPARENS(rx) |
5550 | && (RX_EXTFLAGS(rx) & RXf_CHECK_ALL) | |
5551 | && !(RX_EXTFLAGS(rx) & RXf_ANCH)) { | |
5552 | const int tail = (RX_EXTFLAGS(rx) & RXf_INTUIT_TAIL); | |
f9f4320a | 5553 | SV * const csv = CALLREG_INTUIT_STRING(rx); |
cf93c79d | 5554 | |
07bc277f | 5555 | len = RX_MINLENRET(rx); |
3c8556c3 | 5556 | if (len == 1 && !RX_UTF8(rx) && !tail) { |
1b6737cc | 5557 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 5558 | while (--limit) { |
a6e20a40 AL |
5559 | for (m = s; m < strend && *m != c; m++) |
5560 | ; | |
a0d0e21e LW |
5561 | if (m >= strend) |
5562 | break; | |
c1a7495a BB |
5563 | if (gimme_scalar) { |
5564 | iters++; | |
5565 | if (m-s == 0) | |
5566 | trailing_empty++; | |
5567 | else | |
5568 | trailing_empty = 0; | |
5569 | } else { | |
5570 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5571 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5572 | XPUSHs(dstr); |
5573 | } | |
93f04dac JH |
5574 | /* The rx->minlen is in characters but we want to step |
5575 | * s ahead by bytes. */ | |
1aa99e6b IH |
5576 | if (do_utf8) |
5577 | s = (char*)utf8_hop((U8*)m, len); | |
5578 | else | |
5579 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
5580 | } |
5581 | } | |
5582 | else { | |
a0d0e21e | 5583 | while (s < strend && --limit && |
f722798b | 5584 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 5585 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 5586 | { |
c1a7495a BB |
5587 | if (gimme_scalar) { |
5588 | iters++; | |
5589 | if (m-s == 0) | |
5590 | trailing_empty++; | |
5591 | else | |
5592 | trailing_empty = 0; | |
5593 | } else { | |
5594 | dstr = newSVpvn_flags(s, m-s, | |
d14578b8 | 5595 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); |
c1a7495a BB |
5596 | XPUSHs(dstr); |
5597 | } | |
93f04dac JH |
5598 | /* The rx->minlen is in characters but we want to step |
5599 | * s ahead by bytes. */ | |
1aa99e6b IH |
5600 | if (do_utf8) |
5601 | s = (char*)utf8_hop((U8*)m, len); | |
5602 | else | |
5603 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 5604 | } |
463ee0b2 | 5605 | } |
463ee0b2 | 5606 | } |
a0d0e21e | 5607 | else { |
07bc277f | 5608 | maxiters += slen * RX_NPARENS(rx); |
080c2dec | 5609 | while (s < strend && --limit) |
bbce6d69 | 5610 | { |
1b6737cc | 5611 | I32 rex_return; |
080c2dec | 5612 | PUTBACK; |
d14578b8 | 5613 | rex_return = CALLREGEXEC(rx, (char*)s, (char*)strend, (char*)orig, 1, |
c33e64f0 | 5614 | sv, NULL, 0); |
080c2dec | 5615 | SPAGAIN; |
1b6737cc | 5616 | if (rex_return == 0) |
080c2dec | 5617 | break; |
d9f97599 | 5618 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
6502e081 DM |
5619 | /* we never pass the REXEC_COPY_STR flag, so it should |
5620 | * never get copied */ | |
5621 | assert(!RX_MATCH_COPIED(rx)); | |
07bc277f | 5622 | m = RX_OFFS(rx)[0].start + orig; |
c1a7495a BB |
5623 | |
5624 | if (gimme_scalar) { | |
5625 | iters++; | |
5626 | if (m-s == 0) | |
5627 | trailing_empty++; | |
5628 | else | |
5629 | trailing_empty = 0; | |
5630 | } else { | |
5631 | dstr = newSVpvn_flags(s, m-s, | |
5632 | (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5633 | XPUSHs(dstr); | |
5634 | } | |
07bc277f | 5635 | if (RX_NPARENS(rx)) { |
1b6737cc | 5636 | I32 i; |
07bc277f NC |
5637 | for (i = 1; i <= (I32)RX_NPARENS(rx); i++) { |
5638 | s = RX_OFFS(rx)[i].start + orig; | |
5639 | m = RX_OFFS(rx)[i].end + orig; | |
6de67870 JP |
5640 | |
5641 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
5642 | parens that didn't match -- they should be set to | |
5643 | undef, not the empty string */ | |
c1a7495a BB |
5644 | if (gimme_scalar) { |
5645 | iters++; | |
5646 | if (m-s == 0) | |
5647 | trailing_empty++; | |
5648 | else | |
5649 | trailing_empty = 0; | |
5650 | } else { | |
5651 | if (m >= orig && s >= orig) { | |
5652 | dstr = newSVpvn_flags(s, m-s, | |
5653 | (do_utf8 ? SVf_UTF8 : 0) | |
5654 | | make_mortal); | |
5655 | } | |
5656 | else | |
5657 | dstr = &PL_sv_undef; /* undef, not "" */ | |
5658 | XPUSHs(dstr); | |
748a9306 | 5659 | } |
c1a7495a | 5660 | |
a0d0e21e LW |
5661 | } |
5662 | } | |
07bc277f | 5663 | s = RX_OFFS(rx)[0].end + orig; |
a0d0e21e | 5664 | } |
79072805 | 5665 | } |
8ec5e241 | 5666 | |
c1a7495a BB |
5667 | if (!gimme_scalar) { |
5668 | iters = (SP - PL_stack_base) - base; | |
5669 | } | |
a0d0e21e | 5670 | if (iters > maxiters) |
cea2e8a9 | 5671 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 5672 | |
a0d0e21e LW |
5673 | /* keep field after final delim? */ |
5674 | if (s < strend || (iters && origlimit)) { | |
c1a7495a BB |
5675 | if (!gimme_scalar) { |
5676 | const STRLEN l = strend - s; | |
5677 | dstr = newSVpvn_flags(s, l, (do_utf8 ? SVf_UTF8 : 0) | make_mortal); | |
5678 | XPUSHs(dstr); | |
5679 | } | |
a0d0e21e | 5680 | iters++; |
79072805 | 5681 | } |
a0d0e21e | 5682 | else if (!origlimit) { |
c1a7495a BB |
5683 | if (gimme_scalar) { |
5684 | iters -= trailing_empty; | |
5685 | } else { | |
5686 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { | |
5687 | if (TOPs && !make_mortal) | |
5688 | sv_2mortal(TOPs); | |
5689 | *SP-- = &PL_sv_undef; | |
5690 | iters--; | |
5691 | } | |
89900bd3 | 5692 | } |
a0d0e21e | 5693 | } |
8ec5e241 | 5694 | |
8b7059b1 DM |
5695 | PUTBACK; |
5696 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
5697 | SPAGAIN; | |
a0d0e21e | 5698 | if (realarray) { |
8ec5e241 | 5699 | if (!mg) { |
1c0b011c NIS |
5700 | if (SvSMAGICAL(ary)) { |
5701 | PUTBACK; | |
ad64d0ec | 5702 | mg_set(MUTABLE_SV(ary)); |
1c0b011c NIS |
5703 | SPAGAIN; |
5704 | } | |
5705 | if (gimme == G_ARRAY) { | |
5706 | EXTEND(SP, iters); | |
5707 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
5708 | SP += iters; | |
5709 | RETURN; | |
5710 | } | |
8ec5e241 | 5711 | } |
1c0b011c | 5712 | else { |
fb73857a | 5713 | PUTBACK; |
d343c3ef | 5714 | ENTER_with_name("call_PUSH"); |
36925d9e | 5715 | call_sv(SV_CONST(PUSH),G_SCALAR|G_DISCARD|G_METHOD_NAMED); |
d343c3ef | 5716 | LEAVE_with_name("call_PUSH"); |
fb73857a | 5717 | SPAGAIN; |
8ec5e241 | 5718 | if (gimme == G_ARRAY) { |
1b6737cc | 5719 | I32 i; |
8ec5e241 NIS |
5720 | /* EXTEND should not be needed - we just popped them */ |
5721 | EXTEND(SP, iters); | |
5722 | for (i=0; i < iters; i++) { | |
5723 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 5724 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 5725 | } |
1c0b011c NIS |
5726 | RETURN; |
5727 | } | |
a0d0e21e LW |
5728 | } |
5729 | } | |
5730 | else { | |
5731 | if (gimme == G_ARRAY) | |
5732 | RETURN; | |
5733 | } | |
7f18b612 YST |
5734 | |
5735 | GETTARGET; | |
5736 | PUSHi(iters); | |
5737 | RETURN; | |
79072805 | 5738 | } |
85e6fe83 | 5739 | |
c5917253 NC |
5740 | PP(pp_once) |
5741 | { | |
5742 | dSP; | |
5743 | SV *const sv = PAD_SVl(PL_op->op_targ); | |
5744 | ||
5745 | if (SvPADSTALE(sv)) { | |
5746 | /* First time. */ | |
5747 | SvPADSTALE_off(sv); | |
5748 | RETURNOP(cLOGOP->op_other); | |
5749 | } | |
5750 | RETURNOP(cLOGOP->op_next); | |
5751 | } | |
5752 | ||
c0329465 MB |
5753 | PP(pp_lock) |
5754 | { | |
97aff369 | 5755 | dVAR; |
39644a26 | 5756 | dSP; |
c0329465 | 5757 | dTOPss; |
e55aaa0e | 5758 | SV *retsv = sv; |
68795e93 | 5759 | SvLOCK(sv); |
f79aa60b FC |
5760 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
5761 | || SvTYPE(retsv) == SVt_PVCV) { | |
e55aaa0e MB |
5762 | retsv = refto(retsv); |
5763 | } | |
5764 | SETs(retsv); | |
c0329465 MB |
5765 | RETURN; |
5766 | } | |
a863c7d1 | 5767 | |
65bca31a NC |
5768 | |
5769 | PP(unimplemented_op) | |
5770 | { | |
97aff369 | 5771 | dVAR; |
361ed549 NC |
5772 | const Optype op_type = PL_op->op_type; |
5773 | /* Using OP_NAME() isn't going to be helpful here. Firstly, it doesn't cope | |
5774 | with out of range op numbers - it only "special" cases op_custom. | |
5775 | Secondly, as the three ops we "panic" on are padmy, mapstart and custom, | |
5776 | if we get here for a custom op then that means that the custom op didn't | |
5777 | have an implementation. Given that OP_NAME() looks up the custom op | |
5778 | by its pp_addr, likely it will return NULL, unless someone (unhelpfully) | |
5779 | registers &PL_unimplemented_op as the address of their custom op. | |
5780 | NULL doesn't generate a useful error message. "custom" does. */ | |
5781 | const char *const name = op_type >= OP_max | |
5782 | ? "[out of range]" : PL_op_name[PL_op->op_type]; | |
7627e6d0 NC |
5783 | if(OP_IS_SOCKET(op_type)) |
5784 | DIE(aTHX_ PL_no_sock_func, name); | |
361ed549 | 5785 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", name, op_type); |
65bca31a NC |
5786 | } |
5787 | ||
deb8a388 FC |
5788 | /* For sorting out arguments passed to a &CORE:: subroutine */ |
5789 | PP(pp_coreargs) | |
5790 | { | |
5791 | dSP; | |
7fa5bd9b | 5792 | int opnum = SvIOK(cSVOP_sv) ? (int)SvUV(cSVOP_sv) : 0; |
498a02d8 | 5793 | int defgv = PL_opargs[opnum] & OA_DEFGV ||opnum==OP_GLOB, whicharg = 0; |
7fa5bd9b | 5794 | AV * const at_ = GvAV(PL_defgv); |
0e80230d FC |
5795 | SV **svp = at_ ? AvARRAY(at_) : NULL; |
5796 | I32 minargs = 0, maxargs = 0, numargs = at_ ? AvFILLp(at_)+1 : 0; | |
7fa5bd9b | 5797 | I32 oa = opnum ? PL_opargs[opnum] >> OASHIFT : 0; |
46e00a91 | 5798 | bool seen_question = 0; |
7fa5bd9b | 5799 | const char *err = NULL; |
3e6568b4 | 5800 | const bool pushmark = PL_op->op_private & OPpCOREARGS_PUSHMARK; |
7fa5bd9b | 5801 | |
46e00a91 FC |
5802 | /* Count how many args there are first, to get some idea how far to |
5803 | extend the stack. */ | |
7fa5bd9b | 5804 | while (oa) { |
bf0571fd | 5805 | if ((oa & 7) == OA_LIST) { maxargs = I32_MAX; break; } |
7fa5bd9b | 5806 | maxargs++; |
46e00a91 FC |
5807 | if (oa & OA_OPTIONAL) seen_question = 1; |
5808 | if (!seen_question) minargs++; | |
7fa5bd9b FC |
5809 | oa >>= 4; |
5810 | } | |
5811 | ||
5812 | if(numargs < minargs) err = "Not enough"; | |
5813 | else if(numargs > maxargs) err = "Too many"; | |
5814 | if (err) | |
5815 | /* diag_listed_as: Too many arguments for %s */ | |
5816 | Perl_croak(aTHX_ | |
5817 | "%s arguments for %s", err, | |
2a90c7c6 | 5818 | opnum ? PL_op_desc[opnum] : SvPV_nolen_const(cSVOP_sv) |
7fa5bd9b FC |
5819 | ); |
5820 | ||
5821 | /* Reset the stack pointer. Without this, we end up returning our own | |
5822 | arguments in list context, in addition to the values we are supposed | |
5823 | to return. nextstate usually does this on sub entry, but we need | |
e1fa07e3 | 5824 | to run the next op with the caller's hints, so we cannot have a |
7fa5bd9b FC |
5825 | nextstate. */ |
5826 | SP = PL_stack_base + cxstack[cxstack_ix].blk_oldsp; | |
5827 | ||
46e00a91 FC |
5828 | if(!maxargs) RETURN; |
5829 | ||
bf0571fd FC |
5830 | /* We do this here, rather than with a separate pushmark op, as it has |
5831 | to come in between two things this function does (stack reset and | |
5832 | arg pushing). This seems the easiest way to do it. */ | |
3e6568b4 | 5833 | if (pushmark) { |
bf0571fd FC |
5834 | PUTBACK; |
5835 | (void)Perl_pp_pushmark(aTHX); | |
5836 | } | |
5837 | ||
5838 | EXTEND(SP, maxargs == I32_MAX ? numargs : maxargs); | |
c931b036 | 5839 | PUTBACK; /* The code below can die in various places. */ |
46e00a91 FC |
5840 | |
5841 | oa = PL_opargs[opnum] >> OASHIFT; | |
3e6568b4 | 5842 | for (; oa&&(numargs||!pushmark); (void)(numargs&&(++svp,--numargs))) { |
c931b036 | 5843 | whicharg++; |
46e00a91 FC |
5844 | switch (oa & 7) { |
5845 | case OA_SCALAR: | |
1efec5ed | 5846 | try_defsv: |
d6d78e19 | 5847 | if (!numargs && defgv && whicharg == minargs + 1) { |
d6d78e19 | 5848 | PUSHs(find_rundefsv2( |
db4cf31d | 5849 | find_runcv_where(FIND_RUNCV_level_eq, 1, NULL), |
b4b0692a | 5850 | cxstack[cxstack_ix].blk_oldcop->cop_seq |
d6d78e19 FC |
5851 | )); |
5852 | } | |
5853 | else PUSHs(numargs ? svp && *svp ? *svp : &PL_sv_undef : NULL); | |
46e00a91 | 5854 | break; |
bf0571fd FC |
5855 | case OA_LIST: |
5856 | while (numargs--) { | |
5857 | PUSHs(svp && *svp ? *svp : &PL_sv_undef); | |
5858 | svp++; | |
5859 | } | |
5860 | RETURN; | |
19c481f4 FC |
5861 | case OA_HVREF: |
5862 | if (!svp || !*svp || !SvROK(*svp) | |
5863 | || SvTYPE(SvRV(*svp)) != SVt_PVHV) | |
5864 | DIE(aTHX_ | |
5865 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
5866 | "Type of arg %d to &CORE::%s must be hash reference", | |
5867 | whicharg, OP_DESC(PL_op->op_next) | |
5868 | ); | |
5869 | PUSHs(SvRV(*svp)); | |
5870 | break; | |
c931b036 | 5871 | case OA_FILEREF: |
30901a8a FC |
5872 | if (!numargs) PUSHs(NULL); |
5873 | else if(svp && *svp && SvROK(*svp) && isGV_with_GP(SvRV(*svp))) | |
c931b036 FC |
5874 | /* no magic here, as the prototype will have added an extra |
5875 | refgen and we just want what was there before that */ | |
5876 | PUSHs(SvRV(*svp)); | |
5877 | else { | |
5878 | const bool constr = PL_op->op_private & whicharg; | |
5879 | PUSHs(S_rv2gv(aTHX_ | |
5880 | svp && *svp ? *svp : &PL_sv_undef, | |
5881 | constr, CopHINTS_get(PL_curcop) & HINT_STRICT_REFS, | |
5882 | !constr | |
5883 | )); | |
5884 | } | |
5885 | break; | |
c72a5629 | 5886 | case OA_SCALARREF: |
1efec5ed FC |
5887 | if (!numargs) goto try_defsv; |
5888 | else { | |
17008668 FC |
5889 | const bool wantscalar = |
5890 | PL_op->op_private & OPpCOREARGS_SCALARMOD; | |
c72a5629 | 5891 | if (!svp || !*svp || !SvROK(*svp) |
17008668 FC |
5892 | /* We have to permit globrefs even for the \$ proto, as |
5893 | *foo is indistinguishable from ${\*foo}, and the proto- | |
5894 | type permits the latter. */ | |
5895 | || SvTYPE(SvRV(*svp)) > ( | |
efe889ae | 5896 | wantscalar ? SVt_PVLV |
46bef06f FC |
5897 | : opnum == OP_LOCK || opnum == OP_UNDEF |
5898 | ? SVt_PVCV | |
efe889ae | 5899 | : SVt_PVHV |
17008668 | 5900 | ) |
c72a5629 FC |
5901 | ) |
5902 | DIE(aTHX_ | |
5903 | /* diag_listed_as: Type of arg %d to &CORE::%s must be %s*/ | |
17008668 | 5904 | "Type of arg %d to &CORE::%s must be %s", |
46bef06f | 5905 | whicharg, PL_op_name[opnum], |
17008668 FC |
5906 | wantscalar |
5907 | ? "scalar reference" | |
46bef06f | 5908 | : opnum == OP_LOCK || opnum == OP_UNDEF |
efe889ae FC |
5909 | ? "reference to one of [$@%&*]" |
5910 | : "reference to one of [$@%*]" | |
c72a5629 FC |
5911 | ); |
5912 | PUSHs(SvRV(*svp)); | |
88bb468b FC |
5913 | if (opnum == OP_UNDEF && SvRV(*svp) == (SV *)PL_defgv |
5914 | && cxstack[cxstack_ix].cx_type & CXp_HASARGS) { | |
5915 | /* Undo @_ localisation, so that sub exit does not undo | |
5916 | part of our undeffing. */ | |
5917 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; | |
5918 | POP_SAVEARRAY(); | |
5919 | cx->cx_type &= ~ CXp_HASARGS; | |
5920 | assert(!AvREAL(cx->blk_sub.argarray)); | |
5921 | } | |
17008668 | 5922 | } |
1efec5ed | 5923 | break; |
46e00a91 | 5924 | default: |
46e00a91 FC |
5925 | DIE(aTHX_ "panic: unknown OA_*: %x", (unsigned)(oa&7)); |
5926 | } | |
5927 | oa = oa >> 4; | |
5928 | } | |
5929 | ||
deb8a388 FC |
5930 | RETURN; |
5931 | } | |
5932 | ||
84ed0108 FC |
5933 | PP(pp_runcv) |
5934 | { | |
5935 | dSP; | |
5936 | CV *cv; | |
5937 | if (PL_op->op_private & OPpOFFBYONE) { | |
db4cf31d | 5938 | cv = find_runcv_where(FIND_RUNCV_level_eq, 1, NULL); |
84ed0108 FC |
5939 | } |
5940 | else cv = find_runcv(NULL); | |
e157a82b | 5941 | XPUSHs(CvEVAL(cv) ? &PL_sv_undef : sv_2mortal(newRV((SV *)cv))); |
84ed0108 FC |
5942 | RETURN; |
5943 | } | |
5944 | ||
5945 | ||
e609e586 NC |
5946 | /* |
5947 | * Local variables: | |
5948 | * c-indentation-style: bsd | |
5949 | * c-basic-offset: 4 | |
14d04a33 | 5950 | * indent-tabs-mode: nil |
e609e586 NC |
5951 | * End: |
5952 | * | |
14d04a33 | 5953 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 5954 | */ |