Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* pp.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b94e2f88 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 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 | /* | |
12 | * "It's a big house this, and very peculiar. Always a bit more to discover, | |
13 | * and no knowing what you'll find around a corner. And Elves, sir!" --Samwise | |
14 | */ | |
79072805 | 15 | |
166f8a29 DM |
16 | /* This file contains general pp ("push/pop") functions that execute the |
17 | * opcodes that make up a perl program. A typical pp function expects to | |
18 | * find its arguments on the stack, and usually pushes its results onto | |
19 | * the stack, hence the 'pp' terminology. Each OP structure contains | |
20 | * a pointer to the relevant pp_foo() function. | |
21 | */ | |
22 | ||
79072805 | 23 | #include "EXTERN.h" |
864dbfa3 | 24 | #define PERL_IN_PP_C |
79072805 | 25 | #include "perl.h" |
77bc9082 | 26 | #include "keywords.h" |
79072805 | 27 | |
a4af207c JH |
28 | #include "reentr.h" |
29 | ||
dfe9444c AD |
30 | /* XXX I can't imagine anyone who doesn't have this actually _needs_ |
31 | it, since pid_t is an integral type. | |
32 | --AD 2/20/1998 | |
33 | */ | |
34 | #ifdef NEED_GETPID_PROTO | |
35 | extern Pid_t getpid (void); | |
8ac85365 NIS |
36 | #endif |
37 | ||
0630166f SP |
38 | /* |
39 | * Some BSDs and Cygwin default to POSIX math instead of IEEE. | |
40 | * This switches them over to IEEE. | |
41 | */ | |
42 | #if defined(LIBM_LIB_VERSION) | |
43 | _LIB_VERSION_TYPE _LIB_VERSION = _IEEE_; | |
44 | #endif | |
45 | ||
13017935 SM |
46 | /* variations on pp_null */ |
47 | ||
93a17b20 LW |
48 | PP(pp_stub) |
49 | { | |
97aff369 | 50 | dVAR; |
39644a26 | 51 | dSP; |
54310121 | 52 | if (GIMME_V == G_SCALAR) |
3280af22 | 53 | XPUSHs(&PL_sv_undef); |
93a17b20 LW |
54 | RETURN; |
55 | } | |
56 | ||
79072805 LW |
57 | /* Pushy stuff. */ |
58 | ||
93a17b20 LW |
59 | PP(pp_padav) |
60 | { | |
97aff369 | 61 | dVAR; dSP; dTARGET; |
13017935 | 62 | I32 gimme; |
533c011a | 63 | if (PL_op->op_private & OPpLVAL_INTRO) |
dd2155a4 | 64 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
85e6fe83 | 65 | EXTEND(SP, 1); |
533c011a | 66 | if (PL_op->op_flags & OPf_REF) { |
85e6fe83 | 67 | PUSHs(TARG); |
93a17b20 | 68 | RETURN; |
78f9721b SM |
69 | } else if (LVRET) { |
70 | if (GIMME == G_SCALAR) | |
71 | Perl_croak(aTHX_ "Can't return array to lvalue scalar context"); | |
72 | PUSHs(TARG); | |
73 | RETURN; | |
85e6fe83 | 74 | } |
13017935 SM |
75 | gimme = GIMME_V; |
76 | if (gimme == G_ARRAY) { | |
f54cb97a | 77 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
85e6fe83 | 78 | EXTEND(SP, maxarg); |
93965878 NIS |
79 | if (SvMAGICAL(TARG)) { |
80 | U32 i; | |
eb160463 | 81 | for (i=0; i < (U32)maxarg; i++) { |
0bd48802 | 82 | SV * const * const svp = av_fetch((AV*)TARG, i, FALSE); |
3280af22 | 83 | SP[i+1] = (svp) ? *svp : &PL_sv_undef; |
93965878 NIS |
84 | } |
85 | } | |
86 | else { | |
87 | Copy(AvARRAY((AV*)TARG), SP+1, maxarg, SV*); | |
88 | } | |
85e6fe83 LW |
89 | SP += maxarg; |
90 | } | |
13017935 | 91 | else if (gimme == G_SCALAR) { |
1b6737cc | 92 | SV* const sv = sv_newmortal(); |
f54cb97a | 93 | const I32 maxarg = AvFILL((AV*)TARG) + 1; |
85e6fe83 LW |
94 | sv_setiv(sv, maxarg); |
95 | PUSHs(sv); | |
96 | } | |
97 | RETURN; | |
93a17b20 LW |
98 | } |
99 | ||
100 | PP(pp_padhv) | |
101 | { | |
97aff369 | 102 | dVAR; dSP; dTARGET; |
54310121 | 103 | I32 gimme; |
104 | ||
93a17b20 | 105 | XPUSHs(TARG); |
533c011a | 106 | if (PL_op->op_private & OPpLVAL_INTRO) |
dd2155a4 | 107 | SAVECLEARSV(PAD_SVl(PL_op->op_targ)); |
533c011a | 108 | if (PL_op->op_flags & OPf_REF) |
93a17b20 | 109 | RETURN; |
78f9721b SM |
110 | else if (LVRET) { |
111 | if (GIMME == G_SCALAR) | |
112 | Perl_croak(aTHX_ "Can't return hash to lvalue scalar context"); | |
113 | RETURN; | |
114 | } | |
54310121 | 115 | gimme = GIMME_V; |
116 | if (gimme == G_ARRAY) { | |
cea2e8a9 | 117 | RETURNOP(do_kv()); |
85e6fe83 | 118 | } |
54310121 | 119 | else if (gimme == G_SCALAR) { |
1b6737cc | 120 | SV* const sv = Perl_hv_scalar(aTHX_ (HV*)TARG); |
85e6fe83 | 121 | SETs(sv); |
85e6fe83 | 122 | } |
54310121 | 123 | RETURN; |
93a17b20 LW |
124 | } |
125 | ||
79072805 LW |
126 | /* Translations. */ |
127 | ||
128 | PP(pp_rv2gv) | |
129 | { | |
97aff369 | 130 | dVAR; dSP; dTOPss; |
8ec5e241 | 131 | |
ed6116ce | 132 | if (SvROK(sv)) { |
a0d0e21e | 133 | wasref: |
f5284f61 IZ |
134 | tryAMAGICunDEREF(to_gv); |
135 | ||
ed6116ce | 136 | sv = SvRV(sv); |
b1dadf13 | 137 | if (SvTYPE(sv) == SVt_PVIO) { |
1b6737cc | 138 | GV * const gv = (GV*) sv_newmortal(); |
b1dadf13 | 139 | gv_init(gv, 0, "", 0, 0); |
140 | GvIOp(gv) = (IO *)sv; | |
3e3baf6d | 141 | (void)SvREFCNT_inc(sv); |
b1dadf13 | 142 | sv = (SV*) gv; |
ef54e1a4 JH |
143 | } |
144 | else if (SvTYPE(sv) != SVt_PVGV) | |
cea2e8a9 | 145 | DIE(aTHX_ "Not a GLOB reference"); |
79072805 LW |
146 | } |
147 | else { | |
93a17b20 | 148 | if (SvTYPE(sv) != SVt_PVGV) { |
a0d0e21e LW |
149 | if (SvGMAGICAL(sv)) { |
150 | mg_get(sv); | |
151 | if (SvROK(sv)) | |
152 | goto wasref; | |
153 | } | |
afd1915d | 154 | if (!SvOK(sv) && sv != &PL_sv_undef) { |
b13b2135 | 155 | /* If this is a 'my' scalar and flag is set then vivify |
853846ea | 156 | * NI-S 1999/05/07 |
b13b2135 | 157 | */ |
ac53db4c DM |
158 | if (SvREADONLY(sv)) |
159 | Perl_croak(aTHX_ PL_no_modify); | |
1d8d4d2a | 160 | if (PL_op->op_private & OPpDEREF) { |
2c8ac474 GS |
161 | GV *gv; |
162 | if (cUNOP->op_targ) { | |
163 | STRLEN len; | |
0bd48802 AL |
164 | SV * const namesv = PAD_SV(cUNOP->op_targ); |
165 | const char * const name = SvPV(namesv, len); | |
561b68a9 | 166 | gv = (GV*)newSV(0); |
2c8ac474 GS |
167 | gv_init(gv, CopSTASH(PL_curcop), name, len, 0); |
168 | } | |
169 | else { | |
0bd48802 | 170 | const char * const name = CopSTASHPV(PL_curcop); |
2c8ac474 | 171 | gv = newGVgen(name); |
1d8d4d2a | 172 | } |
b13b2135 NIS |
173 | if (SvTYPE(sv) < SVt_RV) |
174 | sv_upgrade(sv, SVt_RV); | |
b15aece3 | 175 | if (SvPVX_const(sv)) { |
8bd4d4c5 | 176 | SvPV_free(sv); |
b162af07 SP |
177 | SvLEN_set(sv, 0); |
178 | SvCUR_set(sv, 0); | |
8f3c2c0c | 179 | } |
b162af07 | 180 | SvRV_set(sv, (SV*)gv); |
853846ea | 181 | SvROK_on(sv); |
1d8d4d2a | 182 | SvSETMAGIC(sv); |
853846ea | 183 | goto wasref; |
2c8ac474 | 184 | } |
533c011a NIS |
185 | if (PL_op->op_flags & OPf_REF || |
186 | PL_op->op_private & HINT_STRICT_REFS) | |
cea2e8a9 | 187 | DIE(aTHX_ PL_no_usym, "a symbol"); |
599cee73 | 188 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 189 | report_uninit(sv); |
a0d0e21e LW |
190 | RETSETUNDEF; |
191 | } | |
35cd451c GS |
192 | if ((PL_op->op_flags & OPf_SPECIAL) && |
193 | !(PL_op->op_flags & OPf_MOD)) | |
194 | { | |
f776e3cd | 195 | SV * const temp = (SV*)gv_fetchsv(sv, 0, SVt_PVGV); |
7a5fd60d NC |
196 | if (!temp |
197 | && (!is_gv_magical_sv(sv,0) | |
f776e3cd | 198 | || !(sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV)))) { |
35cd451c | 199 | RETSETUNDEF; |
c9d5ac95 | 200 | } |
7a5fd60d | 201 | sv = temp; |
35cd451c GS |
202 | } |
203 | else { | |
204 | if (PL_op->op_private & HINT_STRICT_REFS) | |
7a5fd60d | 205 | DIE(aTHX_ PL_no_symref_sv, sv, "a symbol"); |
e26df76a NC |
206 | if ((PL_op->op_private & (OPpLVAL_INTRO|OPpDONT_INIT_GV)) |
207 | == OPpDONT_INIT_GV) { | |
208 | /* We are the target of a coderef assignment. Return | |
209 | the scalar unchanged, and let pp_sasssign deal with | |
210 | things. */ | |
211 | RETURN; | |
212 | } | |
f776e3cd | 213 | sv = (SV*)gv_fetchsv(sv, GV_ADD, SVt_PVGV); |
35cd451c | 214 | } |
93a17b20 | 215 | } |
79072805 | 216 | } |
533c011a NIS |
217 | if (PL_op->op_private & OPpLVAL_INTRO) |
218 | save_gp((GV*)sv, !(PL_op->op_flags & OPf_SPECIAL)); | |
79072805 LW |
219 | SETs(sv); |
220 | RETURN; | |
221 | } | |
222 | ||
79072805 LW |
223 | PP(pp_rv2sv) |
224 | { | |
97aff369 | 225 | dVAR; dSP; dTOPss; |
c445ea15 | 226 | GV *gv = NULL; |
79072805 | 227 | |
ed6116ce | 228 | if (SvROK(sv)) { |
a0d0e21e | 229 | wasref: |
f5284f61 IZ |
230 | tryAMAGICunDEREF(to_sv); |
231 | ||
ed6116ce | 232 | sv = SvRV(sv); |
79072805 LW |
233 | switch (SvTYPE(sv)) { |
234 | case SVt_PVAV: | |
235 | case SVt_PVHV: | |
236 | case SVt_PVCV: | |
cbae9b9f YST |
237 | case SVt_PVFM: |
238 | case SVt_PVIO: | |
cea2e8a9 | 239 | DIE(aTHX_ "Not a SCALAR reference"); |
79072805 LW |
240 | } |
241 | } | |
242 | else { | |
82d03984 | 243 | gv = (GV*)sv; |
748a9306 | 244 | |
463ee0b2 | 245 | if (SvTYPE(gv) != SVt_PVGV) { |
a0d0e21e LW |
246 | if (SvGMAGICAL(sv)) { |
247 | mg_get(sv); | |
248 | if (SvROK(sv)) | |
249 | goto wasref; | |
250 | } | |
2e6a7e23 RGS |
251 | if (PL_op->op_private & HINT_STRICT_REFS) { |
252 | if (SvOK(sv)) | |
253 | DIE(aTHX_ PL_no_symref_sv, sv, "a SCALAR"); | |
254 | else | |
255 | DIE(aTHX_ PL_no_usym, "a SCALAR"); | |
256 | } | |
a0d0e21e | 257 | if (!SvOK(sv)) { |
2e6a7e23 | 258 | if (PL_op->op_flags & OPf_REF) |
cea2e8a9 | 259 | DIE(aTHX_ PL_no_usym, "a SCALAR"); |
599cee73 | 260 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 261 | report_uninit(sv); |
a0d0e21e LW |
262 | RETSETUNDEF; |
263 | } | |
35cd451c GS |
264 | if ((PL_op->op_flags & OPf_SPECIAL) && |
265 | !(PL_op->op_flags & OPf_MOD)) | |
266 | { | |
f776e3cd | 267 | gv = (GV*)gv_fetchsv(sv, 0, SVt_PV); |
c9d5ac95 | 268 | if (!gv |
7a5fd60d | 269 | && (!is_gv_magical_sv(sv, 0) |
f776e3cd | 270 | || !(gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV)))) |
c9d5ac95 | 271 | { |
35cd451c | 272 | RETSETUNDEF; |
c9d5ac95 | 273 | } |
35cd451c GS |
274 | } |
275 | else { | |
f776e3cd | 276 | gv = (GV*)gv_fetchsv(sv, GV_ADD, SVt_PV); |
35cd451c | 277 | } |
463ee0b2 | 278 | } |
29c711a3 | 279 | sv = GvSVn(gv); |
a0d0e21e | 280 | } |
533c011a | 281 | if (PL_op->op_flags & OPf_MOD) { |
82d03984 RGS |
282 | if (PL_op->op_private & OPpLVAL_INTRO) { |
283 | if (cUNOP->op_first->op_type == OP_NULL) | |
284 | sv = save_scalar((GV*)TOPs); | |
285 | else if (gv) | |
286 | sv = save_scalar(gv); | |
287 | else | |
288 | Perl_croak(aTHX_ PL_no_localize_ref); | |
289 | } | |
533c011a NIS |
290 | else if (PL_op->op_private & OPpDEREF) |
291 | vivify_ref(sv, PL_op->op_private & OPpDEREF); | |
79072805 | 292 | } |
a0d0e21e | 293 | SETs(sv); |
79072805 LW |
294 | RETURN; |
295 | } | |
296 | ||
297 | PP(pp_av2arylen) | |
298 | { | |
97aff369 | 299 | dVAR; dSP; |
1b6737cc AL |
300 | AV * const av = (AV*)TOPs; |
301 | SV ** const sv = Perl_av_arylen_p(aTHX_ (AV*)av); | |
a3874608 | 302 | if (!*sv) { |
561b68a9 | 303 | *sv = newSV(0); |
a3874608 | 304 | sv_upgrade(*sv, SVt_PVMG); |
c445ea15 | 305 | sv_magic(*sv, (SV*)av, PERL_MAGIC_arylen, NULL, 0); |
79072805 | 306 | } |
a3874608 | 307 | SETs(*sv); |
79072805 LW |
308 | RETURN; |
309 | } | |
310 | ||
a0d0e21e LW |
311 | PP(pp_pos) |
312 | { | |
97aff369 | 313 | dVAR; dSP; dTARGET; dPOPss; |
8ec5e241 | 314 | |
78f9721b | 315 | if (PL_op->op_flags & OPf_MOD || LVRET) { |
5f05dabc | 316 | if (SvTYPE(TARG) < SVt_PVLV) { |
317 | sv_upgrade(TARG, SVt_PVLV); | |
c445ea15 | 318 | sv_magic(TARG, NULL, PERL_MAGIC_pos, NULL, 0); |
5f05dabc | 319 | } |
320 | ||
321 | LvTYPE(TARG) = '.'; | |
6ff81951 GS |
322 | if (LvTARG(TARG) != sv) { |
323 | if (LvTARG(TARG)) | |
324 | SvREFCNT_dec(LvTARG(TARG)); | |
325 | LvTARG(TARG) = SvREFCNT_inc(sv); | |
326 | } | |
a0d0e21e LW |
327 | PUSHs(TARG); /* no SvSETMAGIC */ |
328 | RETURN; | |
329 | } | |
330 | else { | |
a0d0e21e | 331 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
1b6737cc | 332 | const MAGIC * const mg = mg_find(sv, PERL_MAGIC_regex_global); |
565764a8 | 333 | if (mg && mg->mg_len >= 0) { |
a0ed51b3 | 334 | I32 i = mg->mg_len; |
7e2040f0 | 335 | if (DO_UTF8(sv)) |
a0ed51b3 LW |
336 | sv_pos_b2u(sv, &i); |
337 | PUSHi(i + PL_curcop->cop_arybase); | |
a0d0e21e LW |
338 | RETURN; |
339 | } | |
340 | } | |
341 | RETPUSHUNDEF; | |
342 | } | |
343 | } | |
344 | ||
79072805 LW |
345 | PP(pp_rv2cv) |
346 | { | |
97aff369 | 347 | dVAR; dSP; |
79072805 LW |
348 | GV *gv; |
349 | HV *stash; | |
c445ea15 AL |
350 | const I32 flags = (PL_op->op_flags & OPf_SPECIAL) |
351 | ? 0 | |
352 | : ((PL_op->op_private & (OPpLVAL_INTRO|OPpMAY_RETURN_CONSTANT)) == OPpMAY_RETURN_CONSTANT) | |
353 | ? GV_ADD|GV_NOEXPAND | |
354 | : GV_ADD; | |
4633a7c4 LW |
355 | /* We usually try to add a non-existent subroutine in case of AUTOLOAD. */ |
356 | /* (But not in defined().) */ | |
e26df76a NC |
357 | |
358 | CV *cv = sv_2cv(TOPs, &stash, &gv, flags); | |
07055b4c CS |
359 | if (cv) { |
360 | if (CvCLONE(cv)) | |
361 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); | |
d32f2495 SC |
362 | if ((PL_op->op_private & OPpLVAL_INTRO)) { |
363 | if (gv && GvCV(gv) == cv && (gv = gv_autoload4(GvSTASH(gv), GvNAME(gv), GvNAMELEN(gv), FALSE))) | |
364 | cv = GvCV(gv); | |
365 | if (!CvLVALUE(cv)) | |
366 | DIE(aTHX_ "Can't modify non-lvalue subroutine call"); | |
367 | } | |
07055b4c | 368 | } |
e26df76a NC |
369 | else if ((flags == (GV_ADD|GV_NOEXPAND)) && gv && SvROK(gv)) { |
370 | cv = (CV*)gv; | |
371 | } | |
07055b4c | 372 | else |
3280af22 | 373 | cv = (CV*)&PL_sv_undef; |
79072805 LW |
374 | SETs((SV*)cv); |
375 | RETURN; | |
376 | } | |
377 | ||
c07a80fd | 378 | PP(pp_prototype) |
379 | { | |
97aff369 | 380 | dVAR; dSP; |
c07a80fd | 381 | CV *cv; |
382 | HV *stash; | |
383 | GV *gv; | |
fabdb6c0 | 384 | SV *ret = &PL_sv_undef; |
c07a80fd | 385 | |
b6c543e3 | 386 | if (SvPOK(TOPs) && SvCUR(TOPs) >= 7) { |
0bd48802 | 387 | const char * const s = SvPVX_const(TOPs); |
b6c543e3 | 388 | if (strnEQ(s, "CORE::", 6)) { |
f54cb97a | 389 | const int code = keyword(s + 6, SvCUR(TOPs) - 6); |
b6c543e3 IZ |
390 | if (code < 0) { /* Overridable. */ |
391 | #define MAX_ARGS_OP ((sizeof(I32) - 1) * 2) | |
392 | int i = 0, n = 0, seen_question = 0; | |
393 | I32 oa; | |
394 | char str[ MAX_ARGS_OP * 2 + 2 ]; /* One ';', one '\0' */ | |
395 | ||
bdf1bb36 RGS |
396 | if (code == -KEY_chop || code == -KEY_chomp |
397 | || code == -KEY_exec || code == -KEY_system) | |
77bc9082 | 398 | goto set; |
b6c543e3 | 399 | while (i < MAXO) { /* The slow way. */ |
22c35a8c GS |
400 | if (strEQ(s + 6, PL_op_name[i]) |
401 | || strEQ(s + 6, PL_op_desc[i])) | |
402 | { | |
b6c543e3 | 403 | goto found; |
22c35a8c | 404 | } |
b6c543e3 IZ |
405 | i++; |
406 | } | |
407 | goto nonesuch; /* Should not happen... */ | |
408 | found: | |
22c35a8c | 409 | oa = PL_opargs[i] >> OASHIFT; |
b6c543e3 | 410 | while (oa) { |
3012a639 | 411 | if (oa & OA_OPTIONAL && !seen_question) { |
b6c543e3 IZ |
412 | seen_question = 1; |
413 | str[n++] = ';'; | |
ef54e1a4 | 414 | } |
b13b2135 | 415 | if ((oa & (OA_OPTIONAL - 1)) >= OA_AVREF |
6e97e420 SC |
416 | && (oa & (OA_OPTIONAL - 1)) <= OA_SCALARREF |
417 | /* But globs are already references (kinda) */ | |
418 | && (oa & (OA_OPTIONAL - 1)) != OA_FILEREF | |
419 | ) { | |
b6c543e3 IZ |
420 | str[n++] = '\\'; |
421 | } | |
b6c543e3 IZ |
422 | str[n++] = ("?$@@%&*$")[oa & (OA_OPTIONAL - 1)]; |
423 | oa = oa >> 4; | |
424 | } | |
425 | str[n++] = '\0'; | |
79cb57f6 | 426 | ret = sv_2mortal(newSVpvn(str, n - 1)); |
ef54e1a4 JH |
427 | } |
428 | else if (code) /* Non-Overridable */ | |
b6c543e3 IZ |
429 | goto set; |
430 | else { /* None such */ | |
431 | nonesuch: | |
d470f89e | 432 | DIE(aTHX_ "Can't find an opnumber for \"%s\"", s+6); |
b6c543e3 IZ |
433 | } |
434 | } | |
435 | } | |
f2c0649b | 436 | cv = sv_2cv(TOPs, &stash, &gv, 0); |
5f05dabc | 437 | if (cv && SvPOK(cv)) |
b15aece3 | 438 | ret = sv_2mortal(newSVpvn(SvPVX_const(cv), SvCUR(cv))); |
b6c543e3 | 439 | set: |
c07a80fd | 440 | SETs(ret); |
441 | RETURN; | |
442 | } | |
443 | ||
a0d0e21e LW |
444 | PP(pp_anoncode) |
445 | { | |
97aff369 | 446 | dVAR; dSP; |
dd2155a4 | 447 | CV* cv = (CV*)PAD_SV(PL_op->op_targ); |
a5f75d66 | 448 | if (CvCLONE(cv)) |
b355b4e0 | 449 | cv = (CV*)sv_2mortal((SV*)cv_clone(cv)); |
5f05dabc | 450 | EXTEND(SP,1); |
748a9306 | 451 | PUSHs((SV*)cv); |
a0d0e21e LW |
452 | RETURN; |
453 | } | |
454 | ||
455 | PP(pp_srefgen) | |
79072805 | 456 | { |
97aff369 | 457 | dVAR; dSP; |
71be2cbc | 458 | *SP = refto(*SP); |
79072805 | 459 | RETURN; |
8ec5e241 | 460 | } |
a0d0e21e LW |
461 | |
462 | PP(pp_refgen) | |
463 | { | |
97aff369 | 464 | dVAR; dSP; dMARK; |
a0d0e21e | 465 | if (GIMME != G_ARRAY) { |
5f0b1d4e GS |
466 | if (++MARK <= SP) |
467 | *MARK = *SP; | |
468 | else | |
3280af22 | 469 | *MARK = &PL_sv_undef; |
5f0b1d4e GS |
470 | *MARK = refto(*MARK); |
471 | SP = MARK; | |
472 | RETURN; | |
a0d0e21e | 473 | } |
bbce6d69 | 474 | EXTEND_MORTAL(SP - MARK); |
71be2cbc | 475 | while (++MARK <= SP) |
476 | *MARK = refto(*MARK); | |
a0d0e21e | 477 | RETURN; |
79072805 LW |
478 | } |
479 | ||
76e3520e | 480 | STATIC SV* |
cea2e8a9 | 481 | S_refto(pTHX_ SV *sv) |
71be2cbc | 482 | { |
97aff369 | 483 | dVAR; |
71be2cbc | 484 | SV* rv; |
485 | ||
486 | if (SvTYPE(sv) == SVt_PVLV && LvTYPE(sv) == 'y') { | |
487 | if (LvTARGLEN(sv)) | |
68dc0745 | 488 | vivify_defelem(sv); |
489 | if (!(sv = LvTARG(sv))) | |
3280af22 | 490 | sv = &PL_sv_undef; |
0dd88869 | 491 | else |
a6c40364 | 492 | (void)SvREFCNT_inc(sv); |
71be2cbc | 493 | } |
d8b46c1b GS |
494 | else if (SvTYPE(sv) == SVt_PVAV) { |
495 | if (!AvREAL((AV*)sv) && AvREIFY((AV*)sv)) | |
496 | av_reify((AV*)sv); | |
497 | SvTEMP_off(sv); | |
498 | (void)SvREFCNT_inc(sv); | |
499 | } | |
f2933f5f DM |
500 | else if (SvPADTMP(sv) && !IS_PADGV(sv)) |
501 | sv = newSVsv(sv); | |
71be2cbc | 502 | else { |
503 | SvTEMP_off(sv); | |
504 | (void)SvREFCNT_inc(sv); | |
505 | } | |
506 | rv = sv_newmortal(); | |
507 | sv_upgrade(rv, SVt_RV); | |
b162af07 | 508 | SvRV_set(rv, sv); |
71be2cbc | 509 | SvROK_on(rv); |
510 | return rv; | |
511 | } | |
512 | ||
79072805 LW |
513 | PP(pp_ref) |
514 | { | |
97aff369 | 515 | dVAR; dSP; dTARGET; |
e1ec3a88 | 516 | const char *pv; |
1b6737cc | 517 | SV * const sv = POPs; |
f12c7020 | 518 | |
5b295bef RD |
519 | if (sv) |
520 | SvGETMAGIC(sv); | |
f12c7020 | 521 | |
a0d0e21e | 522 | if (!sv || !SvROK(sv)) |
4633a7c4 | 523 | RETPUSHNO; |
79072805 | 524 | |
1b6737cc | 525 | pv = sv_reftype(SvRV(sv),TRUE); |
463ee0b2 | 526 | PUSHp(pv, strlen(pv)); |
79072805 LW |
527 | RETURN; |
528 | } | |
529 | ||
530 | PP(pp_bless) | |
531 | { | |
97aff369 | 532 | dVAR; dSP; |
463ee0b2 | 533 | HV *stash; |
79072805 | 534 | |
463ee0b2 | 535 | if (MAXARG == 1) |
11faa288 | 536 | stash = CopSTASH(PL_curcop); |
7b8d334a | 537 | else { |
1b6737cc | 538 | SV * const ssv = POPs; |
7b8d334a | 539 | STRLEN len; |
e1ec3a88 | 540 | const char *ptr; |
81689caa | 541 | |
016a42f3 | 542 | if (ssv && !SvGMAGICAL(ssv) && !SvAMAGIC(ssv) && SvROK(ssv)) |
81689caa | 543 | Perl_croak(aTHX_ "Attempt to bless into a reference"); |
5c144d81 | 544 | ptr = SvPV_const(ssv,len); |
041457d9 | 545 | if (len == 0 && ckWARN(WARN_MISC)) |
9014280d | 546 | Perl_warner(aTHX_ packWARN(WARN_MISC), |
599cee73 | 547 | "Explicit blessing to '' (assuming package main)"); |
7b8d334a GS |
548 | stash = gv_stashpvn(ptr, len, TRUE); |
549 | } | |
a0d0e21e | 550 | |
5d3fdfeb | 551 | (void)sv_bless(TOPs, stash); |
79072805 LW |
552 | RETURN; |
553 | } | |
554 | ||
fb73857a | 555 | PP(pp_gelem) |
556 | { | |
97aff369 | 557 | dVAR; dSP; |
b13b2135 | 558 | |
1b6737cc AL |
559 | SV *sv = POPs; |
560 | const char * const elem = SvPV_nolen_const(sv); | |
561 | GV * const gv = (GV*)POPs; | |
c445ea15 | 562 | SV * tmpRef = NULL; |
1b6737cc | 563 | |
c445ea15 | 564 | sv = NULL; |
c4ba80c3 NC |
565 | if (elem) { |
566 | /* elem will always be NUL terminated. */ | |
1b6737cc | 567 | const char * const second_letter = elem + 1; |
c4ba80c3 NC |
568 | switch (*elem) { |
569 | case 'A': | |
1b6737cc | 570 | if (strEQ(second_letter, "RRAY")) |
c4ba80c3 NC |
571 | tmpRef = (SV*)GvAV(gv); |
572 | break; | |
573 | case 'C': | |
1b6737cc | 574 | if (strEQ(second_letter, "ODE")) |
c4ba80c3 NC |
575 | tmpRef = (SV*)GvCVu(gv); |
576 | break; | |
577 | case 'F': | |
1b6737cc | 578 | if (strEQ(second_letter, "ILEHANDLE")) { |
c4ba80c3 NC |
579 | /* finally deprecated in 5.8.0 */ |
580 | deprecate("*glob{FILEHANDLE}"); | |
581 | tmpRef = (SV*)GvIOp(gv); | |
582 | } | |
583 | else | |
1b6737cc | 584 | if (strEQ(second_letter, "ORMAT")) |
c4ba80c3 NC |
585 | tmpRef = (SV*)GvFORM(gv); |
586 | break; | |
587 | case 'G': | |
1b6737cc | 588 | if (strEQ(second_letter, "LOB")) |
c4ba80c3 NC |
589 | tmpRef = (SV*)gv; |
590 | break; | |
591 | case 'H': | |
1b6737cc | 592 | if (strEQ(second_letter, "ASH")) |
c4ba80c3 NC |
593 | tmpRef = (SV*)GvHV(gv); |
594 | break; | |
595 | case 'I': | |
1b6737cc | 596 | if (*second_letter == 'O' && !elem[2]) |
c4ba80c3 NC |
597 | tmpRef = (SV*)GvIOp(gv); |
598 | break; | |
599 | case 'N': | |
1b6737cc | 600 | if (strEQ(second_letter, "AME")) |
c4ba80c3 NC |
601 | sv = newSVpvn(GvNAME(gv), GvNAMELEN(gv)); |
602 | break; | |
603 | case 'P': | |
1b6737cc | 604 | if (strEQ(second_letter, "ACKAGE")) { |
7fa3a4ab NC |
605 | const HV * const stash = GvSTASH(gv); |
606 | const HEK * const hek = stash ? HvNAME_HEK(stash) : NULL; | |
396482e1 | 607 | sv = hek ? newSVhek(hek) : newSVpvs("__ANON__"); |
c4ba80c3 NC |
608 | } |
609 | break; | |
610 | case 'S': | |
1b6737cc | 611 | if (strEQ(second_letter, "CALAR")) |
f9d52e31 | 612 | tmpRef = GvSVn(gv); |
c4ba80c3 | 613 | break; |
39b99f21 | 614 | } |
fb73857a | 615 | } |
76e3520e GS |
616 | if (tmpRef) |
617 | sv = newRV(tmpRef); | |
fb73857a | 618 | if (sv) |
619 | sv_2mortal(sv); | |
620 | else | |
3280af22 | 621 | sv = &PL_sv_undef; |
fb73857a | 622 | XPUSHs(sv); |
623 | RETURN; | |
624 | } | |
625 | ||
a0d0e21e | 626 | /* Pattern matching */ |
79072805 | 627 | |
a0d0e21e | 628 | PP(pp_study) |
79072805 | 629 | { |
97aff369 | 630 | dVAR; dSP; dPOPss; |
a0d0e21e LW |
631 | register unsigned char *s; |
632 | register I32 pos; | |
633 | register I32 ch; | |
634 | register I32 *sfirst; | |
635 | register I32 *snext; | |
a0d0e21e LW |
636 | STRLEN len; |
637 | ||
3280af22 | 638 | if (sv == PL_lastscream) { |
1e422769 | 639 | if (SvSCREAM(sv)) |
640 | RETPUSHYES; | |
641 | } | |
a4f4e906 NC |
642 | s = (unsigned char*)(SvPV(sv, len)); |
643 | pos = len; | |
644 | if (pos <= 0 || !SvPOK(sv)) { | |
645 | /* No point in studying a zero length string, and not safe to study | |
646 | anything that doesn't appear to be a simple scalar (and hence might | |
647 | change between now and when the regexp engine runs without our set | |
bd473224 | 648 | magic ever running) such as a reference to an object with overloaded |
a4f4e906 NC |
649 | stringification. */ |
650 | RETPUSHNO; | |
651 | } | |
652 | ||
653 | if (PL_lastscream) { | |
654 | SvSCREAM_off(PL_lastscream); | |
655 | SvREFCNT_dec(PL_lastscream); | |
c07a80fd | 656 | } |
a4f4e906 | 657 | PL_lastscream = SvREFCNT_inc(sv); |
1e422769 | 658 | |
659 | s = (unsigned char*)(SvPV(sv, len)); | |
660 | pos = len; | |
661 | if (pos <= 0) | |
662 | RETPUSHNO; | |
3280af22 NIS |
663 | if (pos > PL_maxscream) { |
664 | if (PL_maxscream < 0) { | |
665 | PL_maxscream = pos + 80; | |
a02a5408 JC |
666 | Newx(PL_screamfirst, 256, I32); |
667 | Newx(PL_screamnext, PL_maxscream, I32); | |
79072805 LW |
668 | } |
669 | else { | |
3280af22 NIS |
670 | PL_maxscream = pos + pos / 4; |
671 | Renew(PL_screamnext, PL_maxscream, I32); | |
79072805 | 672 | } |
79072805 | 673 | } |
a0d0e21e | 674 | |
3280af22 NIS |
675 | sfirst = PL_screamfirst; |
676 | snext = PL_screamnext; | |
a0d0e21e LW |
677 | |
678 | if (!sfirst || !snext) | |
cea2e8a9 | 679 | DIE(aTHX_ "do_study: out of memory"); |
a0d0e21e LW |
680 | |
681 | for (ch = 256; ch; --ch) | |
682 | *sfirst++ = -1; | |
683 | sfirst -= 256; | |
684 | ||
685 | while (--pos >= 0) { | |
1b6737cc | 686 | register const I32 ch = s[pos]; |
a0d0e21e LW |
687 | if (sfirst[ch] >= 0) |
688 | snext[pos] = sfirst[ch] - pos; | |
689 | else | |
690 | snext[pos] = -pos; | |
691 | sfirst[ch] = pos; | |
79072805 LW |
692 | } |
693 | ||
c07a80fd | 694 | SvSCREAM_on(sv); |
14befaf4 | 695 | /* piggyback on m//g magic */ |
c445ea15 | 696 | sv_magic(sv, NULL, PERL_MAGIC_regex_global, NULL, 0); |
1e422769 | 697 | RETPUSHYES; |
79072805 LW |
698 | } |
699 | ||
a0d0e21e | 700 | PP(pp_trans) |
79072805 | 701 | { |
97aff369 | 702 | dVAR; dSP; dTARG; |
a0d0e21e LW |
703 | SV *sv; |
704 | ||
533c011a | 705 | if (PL_op->op_flags & OPf_STACKED) |
a0d0e21e | 706 | sv = POPs; |
59f00321 RGS |
707 | else if (PL_op->op_private & OPpTARGET_MY) |
708 | sv = GETTARGET; | |
79072805 | 709 | else { |
54b9620d | 710 | sv = DEFSV; |
a0d0e21e | 711 | EXTEND(SP,1); |
79072805 | 712 | } |
adbc6bb1 | 713 | TARG = sv_newmortal(); |
4757a243 | 714 | PUSHi(do_trans(sv)); |
a0d0e21e | 715 | RETURN; |
79072805 LW |
716 | } |
717 | ||
a0d0e21e | 718 | /* Lvalue operators. */ |
79072805 | 719 | |
a0d0e21e LW |
720 | PP(pp_schop) |
721 | { | |
97aff369 | 722 | dVAR; dSP; dTARGET; |
a0d0e21e LW |
723 | do_chop(TARG, TOPs); |
724 | SETTARG; | |
725 | RETURN; | |
79072805 LW |
726 | } |
727 | ||
a0d0e21e | 728 | PP(pp_chop) |
79072805 | 729 | { |
97aff369 | 730 | dVAR; dSP; dMARK; dTARGET; dORIGMARK; |
2ec6af5f RG |
731 | while (MARK < SP) |
732 | do_chop(TARG, *++MARK); | |
733 | SP = ORIGMARK; | |
b59aed67 | 734 | XPUSHTARG; |
a0d0e21e | 735 | RETURN; |
79072805 LW |
736 | } |
737 | ||
a0d0e21e | 738 | PP(pp_schomp) |
79072805 | 739 | { |
97aff369 | 740 | dVAR; dSP; dTARGET; |
a0d0e21e LW |
741 | SETi(do_chomp(TOPs)); |
742 | RETURN; | |
79072805 LW |
743 | } |
744 | ||
a0d0e21e | 745 | PP(pp_chomp) |
79072805 | 746 | { |
97aff369 | 747 | dVAR; dSP; dMARK; dTARGET; |
a0d0e21e | 748 | register I32 count = 0; |
8ec5e241 | 749 | |
a0d0e21e LW |
750 | while (SP > MARK) |
751 | count += do_chomp(POPs); | |
b59aed67 | 752 | XPUSHi(count); |
a0d0e21e | 753 | RETURN; |
79072805 LW |
754 | } |
755 | ||
a0d0e21e LW |
756 | PP(pp_undef) |
757 | { | |
97aff369 | 758 | dVAR; dSP; |
a0d0e21e LW |
759 | SV *sv; |
760 | ||
533c011a | 761 | if (!PL_op->op_private) { |
774d564b | 762 | EXTEND(SP, 1); |
a0d0e21e | 763 | RETPUSHUNDEF; |
774d564b | 764 | } |
79072805 | 765 | |
a0d0e21e LW |
766 | sv = POPs; |
767 | if (!sv) | |
768 | RETPUSHUNDEF; | |
85e6fe83 | 769 | |
765f542d | 770 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
85e6fe83 | 771 | |
a0d0e21e LW |
772 | switch (SvTYPE(sv)) { |
773 | case SVt_NULL: | |
774 | break; | |
775 | case SVt_PVAV: | |
776 | av_undef((AV*)sv); | |
777 | break; | |
778 | case SVt_PVHV: | |
779 | hv_undef((HV*)sv); | |
780 | break; | |
781 | case SVt_PVCV: | |
041457d9 | 782 | if (cv_const_sv((CV*)sv) && ckWARN(WARN_MISC)) |
9014280d | 783 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Constant subroutine %s undefined", |
54310121 | 784 | CvANON((CV*)sv) ? "(anonymous)" : GvENAME(CvGV((CV*)sv))); |
5f66b61c | 785 | /* FALLTHROUGH */ |
9607fc9c | 786 | case SVt_PVFM: |
6fc92669 GS |
787 | { |
788 | /* let user-undef'd sub keep its identity */ | |
0bd48802 | 789 | GV* const gv = CvGV((CV*)sv); |
6fc92669 GS |
790 | cv_undef((CV*)sv); |
791 | CvGV((CV*)sv) = gv; | |
792 | } | |
a0d0e21e | 793 | break; |
8e07c86e | 794 | case SVt_PVGV: |
44a8e56a | 795 | if (SvFAKE(sv)) |
3280af22 | 796 | SvSetMagicSV(sv, &PL_sv_undef); |
20408e3c GS |
797 | else { |
798 | GP *gp; | |
799 | gp_free((GV*)sv); | |
a02a5408 | 800 | Newxz(gp, 1, GP); |
20408e3c | 801 | GvGP(sv) = gp_ref(gp); |
561b68a9 | 802 | GvSV(sv) = newSV(0); |
57843af0 | 803 | GvLINE(sv) = CopLINE(PL_curcop); |
20408e3c GS |
804 | GvEGV(sv) = (GV*)sv; |
805 | GvMULTI_on(sv); | |
806 | } | |
44a8e56a | 807 | break; |
a0d0e21e | 808 | default: |
b15aece3 | 809 | if (SvTYPE(sv) >= SVt_PV && SvPVX_const(sv) && SvLEN(sv)) { |
8bd4d4c5 | 810 | SvPV_free(sv); |
c445ea15 | 811 | SvPV_set(sv, NULL); |
4633a7c4 | 812 | SvLEN_set(sv, 0); |
a0d0e21e | 813 | } |
0c34ef67 | 814 | SvOK_off(sv); |
4633a7c4 | 815 | SvSETMAGIC(sv); |
79072805 | 816 | } |
a0d0e21e LW |
817 | |
818 | RETPUSHUNDEF; | |
79072805 LW |
819 | } |
820 | ||
a0d0e21e | 821 | PP(pp_predec) |
79072805 | 822 | { |
97aff369 | 823 | dVAR; dSP; |
f39684df | 824 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
d470f89e | 825 | DIE(aTHX_ PL_no_modify); |
3510b4a1 NC |
826 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
827 | && SvIVX(TOPs) != IV_MIN) | |
55497cff | 828 | { |
45977657 | 829 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
55497cff | 830 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
831 | } |
832 | else | |
833 | sv_dec(TOPs); | |
a0d0e21e LW |
834 | SvSETMAGIC(TOPs); |
835 | return NORMAL; | |
836 | } | |
79072805 | 837 | |
a0d0e21e LW |
838 | PP(pp_postinc) |
839 | { | |
97aff369 | 840 | dVAR; dSP; dTARGET; |
f39684df | 841 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
d470f89e | 842 | DIE(aTHX_ PL_no_modify); |
a0d0e21e | 843 | sv_setsv(TARG, TOPs); |
3510b4a1 NC |
844 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
845 | && SvIVX(TOPs) != IV_MAX) | |
55497cff | 846 | { |
45977657 | 847 | SvIV_set(TOPs, SvIVX(TOPs) + 1); |
55497cff | 848 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
849 | } |
850 | else | |
851 | sv_inc(TOPs); | |
a0d0e21e | 852 | SvSETMAGIC(TOPs); |
1e54a23f | 853 | /* special case for undef: see thread at 2003-03/msg00536.html in archive */ |
a0d0e21e LW |
854 | if (!SvOK(TARG)) |
855 | sv_setiv(TARG, 0); | |
856 | SETs(TARG); | |
857 | return NORMAL; | |
858 | } | |
79072805 | 859 | |
a0d0e21e LW |
860 | PP(pp_postdec) |
861 | { | |
97aff369 | 862 | dVAR; dSP; dTARGET; |
f39684df | 863 | if (SvTYPE(TOPs) >= SVt_PVGV && SvTYPE(TOPs) != SVt_PVLV) |
d470f89e | 864 | DIE(aTHX_ PL_no_modify); |
a0d0e21e | 865 | sv_setsv(TARG, TOPs); |
3510b4a1 NC |
866 | if (!SvREADONLY(TOPs) && SvIOK_notUV(TOPs) && !SvNOK(TOPs) && !SvPOK(TOPs) |
867 | && SvIVX(TOPs) != IV_MIN) | |
55497cff | 868 | { |
45977657 | 869 | SvIV_set(TOPs, SvIVX(TOPs) - 1); |
55497cff | 870 | SvFLAGS(TOPs) &= ~(SVp_NOK|SVp_POK); |
748a9306 LW |
871 | } |
872 | else | |
873 | sv_dec(TOPs); | |
a0d0e21e LW |
874 | SvSETMAGIC(TOPs); |
875 | SETs(TARG); | |
876 | return NORMAL; | |
877 | } | |
79072805 | 878 | |
a0d0e21e LW |
879 | /* Ordinary operators. */ |
880 | ||
881 | PP(pp_pow) | |
882 | { | |
97aff369 | 883 | dVAR; dSP; dATARGET; |
58d76dfd | 884 | #ifdef PERL_PRESERVE_IVUV |
52a96ae6 HS |
885 | bool is_int = 0; |
886 | #endif | |
887 | tryAMAGICbin(pow,opASSIGN); | |
888 | #ifdef PERL_PRESERVE_IVUV | |
889 | /* For integer to integer power, we do the calculation by hand wherever | |
890 | we're sure it is safe; otherwise we call pow() and try to convert to | |
891 | integer afterwards. */ | |
58d76dfd | 892 | { |
900658e3 PF |
893 | SvIV_please(TOPs); |
894 | if (SvIOK(TOPs)) { | |
895 | SvIV_please(TOPm1s); | |
896 | if (SvIOK(TOPm1s)) { | |
897 | UV power; | |
898 | bool baseuok; | |
899 | UV baseuv; | |
900 | ||
901 | if (SvUOK(TOPs)) { | |
902 | power = SvUVX(TOPs); | |
903 | } else { | |
904 | const IV iv = SvIVX(TOPs); | |
905 | if (iv >= 0) { | |
906 | power = iv; | |
907 | } else { | |
908 | goto float_it; /* Can't do negative powers this way. */ | |
909 | } | |
910 | } | |
911 | ||
912 | baseuok = SvUOK(TOPm1s); | |
913 | if (baseuok) { | |
914 | baseuv = SvUVX(TOPm1s); | |
915 | } else { | |
916 | const IV iv = SvIVX(TOPm1s); | |
917 | if (iv >= 0) { | |
918 | baseuv = iv; | |
919 | baseuok = TRUE; /* effectively it's a UV now */ | |
920 | } else { | |
921 | baseuv = -iv; /* abs, baseuok == false records sign */ | |
922 | } | |
923 | } | |
52a96ae6 HS |
924 | /* now we have integer ** positive integer. */ |
925 | is_int = 1; | |
926 | ||
927 | /* foo & (foo - 1) is zero only for a power of 2. */ | |
58d76dfd | 928 | if (!(baseuv & (baseuv - 1))) { |
52a96ae6 | 929 | /* We are raising power-of-2 to a positive integer. |
58d76dfd JH |
930 | The logic here will work for any base (even non-integer |
931 | bases) but it can be less accurate than | |
932 | pow (base,power) or exp (power * log (base)) when the | |
933 | intermediate values start to spill out of the mantissa. | |
934 | With powers of 2 we know this can't happen. | |
935 | And powers of 2 are the favourite thing for perl | |
936 | programmers to notice ** not doing what they mean. */ | |
937 | NV result = 1.0; | |
938 | NV base = baseuok ? baseuv : -(NV)baseuv; | |
900658e3 PF |
939 | |
940 | if (power & 1) { | |
941 | result *= base; | |
942 | } | |
943 | while (power >>= 1) { | |
944 | base *= base; | |
945 | if (power & 1) { | |
946 | result *= base; | |
947 | } | |
948 | } | |
58d76dfd JH |
949 | SP--; |
950 | SETn( result ); | |
52a96ae6 | 951 | SvIV_please(TOPs); |
58d76dfd | 952 | RETURN; |
52a96ae6 HS |
953 | } else { |
954 | register unsigned int highbit = 8 * sizeof(UV); | |
900658e3 PF |
955 | register unsigned int diff = 8 * sizeof(UV); |
956 | while (diff >>= 1) { | |
957 | highbit -= diff; | |
958 | if (baseuv >> highbit) { | |
959 | highbit += diff; | |
960 | } | |
52a96ae6 HS |
961 | } |
962 | /* we now have baseuv < 2 ** highbit */ | |
963 | if (power * highbit <= 8 * sizeof(UV)) { | |
964 | /* result will definitely fit in UV, so use UV math | |
965 | on same algorithm as above */ | |
966 | register UV result = 1; | |
967 | register UV base = baseuv; | |
900658e3 PF |
968 | const bool odd_power = (bool)(power & 1); |
969 | if (odd_power) { | |
970 | result *= base; | |
971 | } | |
972 | while (power >>= 1) { | |
973 | base *= base; | |
974 | if (power & 1) { | |
52a96ae6 | 975 | result *= base; |
52a96ae6 HS |
976 | } |
977 | } | |
978 | SP--; | |
0615a994 | 979 | if (baseuok || !odd_power) |
52a96ae6 HS |
980 | /* answer is positive */ |
981 | SETu( result ); | |
982 | else if (result <= (UV)IV_MAX) | |
983 | /* answer negative, fits in IV */ | |
984 | SETi( -(IV)result ); | |
985 | else if (result == (UV)IV_MIN) | |
986 | /* 2's complement assumption: special case IV_MIN */ | |
987 | SETi( IV_MIN ); | |
988 | else | |
989 | /* answer negative, doesn't fit */ | |
990 | SETn( -(NV)result ); | |
991 | RETURN; | |
992 | } | |
993 | } | |
994 | } | |
995 | } | |
58d76dfd | 996 | } |
52a96ae6 | 997 | float_it: |
58d76dfd | 998 | #endif |
a0d0e21e | 999 | { |
52a96ae6 HS |
1000 | dPOPTOPnnrl; |
1001 | SETn( Perl_pow( left, right) ); | |
1002 | #ifdef PERL_PRESERVE_IVUV | |
1003 | if (is_int) | |
1004 | SvIV_please(TOPs); | |
1005 | #endif | |
1006 | RETURN; | |
93a17b20 | 1007 | } |
a0d0e21e LW |
1008 | } |
1009 | ||
1010 | PP(pp_multiply) | |
1011 | { | |
97aff369 | 1012 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
28e5dec8 JH |
1013 | #ifdef PERL_PRESERVE_IVUV |
1014 | SvIV_please(TOPs); | |
1015 | if (SvIOK(TOPs)) { | |
1016 | /* Unless the left argument is integer in range we are going to have to | |
1017 | use NV maths. Hence only attempt to coerce the right argument if | |
1018 | we know the left is integer. */ | |
1019 | /* Left operand is defined, so is it IV? */ | |
1020 | SvIV_please(TOPm1s); | |
1021 | if (SvIOK(TOPm1s)) { | |
1022 | bool auvok = SvUOK(TOPm1s); | |
1023 | bool buvok = SvUOK(TOPs); | |
1024 | const UV topmask = (~ (UV)0) << (4 * sizeof (UV)); | |
1025 | const UV botmask = ~((~ (UV)0) << (4 * sizeof (UV))); | |
1026 | UV alow; | |
1027 | UV ahigh; | |
1028 | UV blow; | |
1029 | UV bhigh; | |
1030 | ||
1031 | if (auvok) { | |
1032 | alow = SvUVX(TOPm1s); | |
1033 | } else { | |
1b6737cc | 1034 | const IV aiv = SvIVX(TOPm1s); |
28e5dec8 JH |
1035 | if (aiv >= 0) { |
1036 | alow = aiv; | |
1037 | auvok = TRUE; /* effectively it's a UV now */ | |
1038 | } else { | |
1039 | alow = -aiv; /* abs, auvok == false records sign */ | |
1040 | } | |
1041 | } | |
1042 | if (buvok) { | |
1043 | blow = SvUVX(TOPs); | |
1044 | } else { | |
1b6737cc | 1045 | const IV biv = SvIVX(TOPs); |
28e5dec8 JH |
1046 | if (biv >= 0) { |
1047 | blow = biv; | |
1048 | buvok = TRUE; /* effectively it's a UV now */ | |
1049 | } else { | |
1050 | blow = -biv; /* abs, buvok == false records sign */ | |
1051 | } | |
1052 | } | |
1053 | ||
1054 | /* If this does sign extension on unsigned it's time for plan B */ | |
1055 | ahigh = alow >> (4 * sizeof (UV)); | |
1056 | alow &= botmask; | |
1057 | bhigh = blow >> (4 * sizeof (UV)); | |
1058 | blow &= botmask; | |
1059 | if (ahigh && bhigh) { | |
bb263b4e | 1060 | /*EMPTY*/; |
28e5dec8 JH |
1061 | /* eg 32 bit is at least 0x10000 * 0x10000 == 0x100000000 |
1062 | which is overflow. Drop to NVs below. */ | |
1063 | } else if (!ahigh && !bhigh) { | |
1064 | /* eg 32 bit is at most 0xFFFF * 0xFFFF == 0xFFFE0001 | |
1065 | so the unsigned multiply cannot overflow. */ | |
c445ea15 | 1066 | const UV product = alow * blow; |
28e5dec8 JH |
1067 | if (auvok == buvok) { |
1068 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1069 | SP--; | |
1070 | SETu( product ); | |
1071 | RETURN; | |
1072 | } else if (product <= (UV)IV_MIN) { | |
1073 | /* 2s complement assumption that (UV)-IV_MIN is correct. */ | |
1074 | /* -ve result, which could overflow an IV */ | |
1075 | SP--; | |
25716404 | 1076 | SETi( -(IV)product ); |
28e5dec8 JH |
1077 | RETURN; |
1078 | } /* else drop to NVs below. */ | |
1079 | } else { | |
1080 | /* One operand is large, 1 small */ | |
1081 | UV product_middle; | |
1082 | if (bhigh) { | |
1083 | /* swap the operands */ | |
1084 | ahigh = bhigh; | |
1085 | bhigh = blow; /* bhigh now the temp var for the swap */ | |
1086 | blow = alow; | |
1087 | alow = bhigh; | |
1088 | } | |
1089 | /* now, ((ahigh * blow) << half_UV_len) + (alow * blow) | |
1090 | multiplies can't overflow. shift can, add can, -ve can. */ | |
1091 | product_middle = ahigh * blow; | |
1092 | if (!(product_middle & topmask)) { | |
1093 | /* OK, (ahigh * blow) won't lose bits when we shift it. */ | |
1094 | UV product_low; | |
1095 | product_middle <<= (4 * sizeof (UV)); | |
1096 | product_low = alow * blow; | |
1097 | ||
1098 | /* as for pp_add, UV + something mustn't get smaller. | |
1099 | IIRC ANSI mandates this wrapping *behaviour* for | |
1100 | unsigned whatever the actual representation*/ | |
1101 | product_low += product_middle; | |
1102 | if (product_low >= product_middle) { | |
1103 | /* didn't overflow */ | |
1104 | if (auvok == buvok) { | |
1105 | /* -ve * -ve or +ve * +ve gives a +ve result. */ | |
1106 | SP--; | |
1107 | SETu( product_low ); | |
1108 | RETURN; | |
1109 | } else if (product_low <= (UV)IV_MIN) { | |
1110 | /* 2s complement assumption again */ | |
1111 | /* -ve result, which could overflow an IV */ | |
1112 | SP--; | |
25716404 | 1113 | SETi( -(IV)product_low ); |
28e5dec8 JH |
1114 | RETURN; |
1115 | } /* else drop to NVs below. */ | |
1116 | } | |
1117 | } /* product_middle too large */ | |
1118 | } /* ahigh && bhigh */ | |
1119 | } /* SvIOK(TOPm1s) */ | |
1120 | } /* SvIOK(TOPs) */ | |
1121 | #endif | |
a0d0e21e LW |
1122 | { |
1123 | dPOPTOPnnrl; | |
1124 | SETn( left * right ); | |
1125 | RETURN; | |
79072805 | 1126 | } |
a0d0e21e LW |
1127 | } |
1128 | ||
1129 | PP(pp_divide) | |
1130 | { | |
97aff369 | 1131 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
5479d192 | 1132 | /* Only try to do UV divide first |
68795e93 | 1133 | if ((SLOPPYDIVIDE is true) or |
5479d192 NC |
1134 | (PERL_PRESERVE_IVUV is true and one or both SV is a UV too large |
1135 | to preserve)) | |
1136 | The assumption is that it is better to use floating point divide | |
1137 | whenever possible, only doing integer divide first if we can't be sure. | |
1138 | If NV_PRESERVES_UV is true then we know at compile time that no UV | |
1139 | can be too large to preserve, so don't need to compile the code to | |
1140 | test the size of UVs. */ | |
1141 | ||
a0d0e21e | 1142 | #ifdef SLOPPYDIVIDE |
5479d192 NC |
1143 | # define PERL_TRY_UV_DIVIDE |
1144 | /* ensure that 20./5. == 4. */ | |
a0d0e21e | 1145 | #else |
5479d192 NC |
1146 | # ifdef PERL_PRESERVE_IVUV |
1147 | # ifndef NV_PRESERVES_UV | |
1148 | # define PERL_TRY_UV_DIVIDE | |
1149 | # endif | |
1150 | # endif | |
a0d0e21e | 1151 | #endif |
5479d192 NC |
1152 | |
1153 | #ifdef PERL_TRY_UV_DIVIDE | |
1154 | SvIV_please(TOPs); | |
1155 | if (SvIOK(TOPs)) { | |
1156 | SvIV_please(TOPm1s); | |
1157 | if (SvIOK(TOPm1s)) { | |
1158 | bool left_non_neg = SvUOK(TOPm1s); | |
1159 | bool right_non_neg = SvUOK(TOPs); | |
1160 | UV left; | |
1161 | UV right; | |
1162 | ||
1163 | if (right_non_neg) { | |
1164 | right = SvUVX(TOPs); | |
1165 | } | |
1166 | else { | |
1b6737cc | 1167 | const IV biv = SvIVX(TOPs); |
5479d192 NC |
1168 | if (biv >= 0) { |
1169 | right = biv; | |
1170 | right_non_neg = TRUE; /* effectively it's a UV now */ | |
1171 | } | |
1172 | else { | |
1173 | right = -biv; | |
1174 | } | |
1175 | } | |
1176 | /* historically undef()/0 gives a "Use of uninitialized value" | |
1177 | warning before dieing, hence this test goes here. | |
1178 | If it were immediately before the second SvIV_please, then | |
1179 | DIE() would be invoked before left was even inspected, so | |
1180 | no inpsection would give no warning. */ | |
1181 | if (right == 0) | |
1182 | DIE(aTHX_ "Illegal division by zero"); | |
1183 | ||
1184 | if (left_non_neg) { | |
1185 | left = SvUVX(TOPm1s); | |
1186 | } | |
1187 | else { | |
1b6737cc | 1188 | const IV aiv = SvIVX(TOPm1s); |
5479d192 NC |
1189 | if (aiv >= 0) { |
1190 | left = aiv; | |
1191 | left_non_neg = TRUE; /* effectively it's a UV now */ | |
1192 | } | |
1193 | else { | |
1194 | left = -aiv; | |
1195 | } | |
1196 | } | |
1197 | ||
1198 | if (left >= right | |
1199 | #ifdef SLOPPYDIVIDE | |
1200 | /* For sloppy divide we always attempt integer division. */ | |
1201 | #else | |
1202 | /* Otherwise we only attempt it if either or both operands | |
1203 | would not be preserved by an NV. If both fit in NVs | |
0c2ee62a NC |
1204 | we fall through to the NV divide code below. However, |
1205 | as left >= right to ensure integer result here, we know that | |
1206 | we can skip the test on the right operand - right big | |
1207 | enough not to be preserved can't get here unless left is | |
1208 | also too big. */ | |
1209 | ||
1210 | && (left > ((UV)1 << NV_PRESERVES_UV_BITS)) | |
5479d192 NC |
1211 | #endif |
1212 | ) { | |
1213 | /* Integer division can't overflow, but it can be imprecise. */ | |
1b6737cc | 1214 | const UV result = left / right; |
5479d192 NC |
1215 | if (result * right == left) { |
1216 | SP--; /* result is valid */ | |
1217 | if (left_non_neg == right_non_neg) { | |
1218 | /* signs identical, result is positive. */ | |
1219 | SETu( result ); | |
1220 | RETURN; | |
1221 | } | |
1222 | /* 2s complement assumption */ | |
1223 | if (result <= (UV)IV_MIN) | |
91f3b821 | 1224 | SETi( -(IV)result ); |
5479d192 NC |
1225 | else { |
1226 | /* It's exact but too negative for IV. */ | |
1227 | SETn( -(NV)result ); | |
1228 | } | |
1229 | RETURN; | |
1230 | } /* tried integer divide but it was not an integer result */ | |
32fdb065 | 1231 | } /* else (PERL_ABS(result) < 1.0) or (both UVs in range for NV) */ |
5479d192 NC |
1232 | } /* left wasn't SvIOK */ |
1233 | } /* right wasn't SvIOK */ | |
1234 | #endif /* PERL_TRY_UV_DIVIDE */ | |
1235 | { | |
1236 | dPOPPOPnnrl; | |
1237 | if (right == 0.0) | |
1238 | DIE(aTHX_ "Illegal division by zero"); | |
1239 | PUSHn( left / right ); | |
1240 | RETURN; | |
79072805 | 1241 | } |
a0d0e21e LW |
1242 | } |
1243 | ||
1244 | PP(pp_modulo) | |
1245 | { | |
97aff369 | 1246 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
a0d0e21e | 1247 | { |
9c5ffd7c JH |
1248 | UV left = 0; |
1249 | UV right = 0; | |
dc656993 JH |
1250 | bool left_neg = FALSE; |
1251 | bool right_neg = FALSE; | |
e2c88acc NC |
1252 | bool use_double = FALSE; |
1253 | bool dright_valid = FALSE; | |
9c5ffd7c JH |
1254 | NV dright = 0.0; |
1255 | NV dleft = 0.0; | |
787eafbd | 1256 | |
e2c88acc NC |
1257 | SvIV_please(TOPs); |
1258 | if (SvIOK(TOPs)) { | |
1259 | right_neg = !SvUOK(TOPs); | |
1260 | if (!right_neg) { | |
1261 | right = SvUVX(POPs); | |
1262 | } else { | |
1b6737cc | 1263 | const IV biv = SvIVX(POPs); |
e2c88acc NC |
1264 | if (biv >= 0) { |
1265 | right = biv; | |
1266 | right_neg = FALSE; /* effectively it's a UV now */ | |
1267 | } else { | |
1268 | right = -biv; | |
1269 | } | |
1270 | } | |
1271 | } | |
1272 | else { | |
787eafbd | 1273 | dright = POPn; |
787eafbd IZ |
1274 | right_neg = dright < 0; |
1275 | if (right_neg) | |
1276 | dright = -dright; | |
e2c88acc NC |
1277 | if (dright < UV_MAX_P1) { |
1278 | right = U_V(dright); | |
1279 | dright_valid = TRUE; /* In case we need to use double below. */ | |
1280 | } else { | |
1281 | use_double = TRUE; | |
1282 | } | |
787eafbd | 1283 | } |
a0d0e21e | 1284 | |
e2c88acc NC |
1285 | /* At this point use_double is only true if right is out of range for |
1286 | a UV. In range NV has been rounded down to nearest UV and | |
1287 | use_double false. */ | |
1288 | SvIV_please(TOPs); | |
1289 | if (!use_double && SvIOK(TOPs)) { | |
1290 | if (SvIOK(TOPs)) { | |
1291 | left_neg = !SvUOK(TOPs); | |
1292 | if (!left_neg) { | |
1293 | left = SvUVX(POPs); | |
1294 | } else { | |
0bd48802 | 1295 | const IV aiv = SvIVX(POPs); |
e2c88acc NC |
1296 | if (aiv >= 0) { |
1297 | left = aiv; | |
1298 | left_neg = FALSE; /* effectively it's a UV now */ | |
1299 | } else { | |
1300 | left = -aiv; | |
1301 | } | |
1302 | } | |
1303 | } | |
1304 | } | |
787eafbd IZ |
1305 | else { |
1306 | dleft = POPn; | |
787eafbd IZ |
1307 | left_neg = dleft < 0; |
1308 | if (left_neg) | |
1309 | dleft = -dleft; | |
68dc0745 | 1310 | |
e2c88acc NC |
1311 | /* This should be exactly the 5.6 behaviour - if left and right are |
1312 | both in range for UV then use U_V() rather than floor. */ | |
1313 | if (!use_double) { | |
1314 | if (dleft < UV_MAX_P1) { | |
1315 | /* right was in range, so is dleft, so use UVs not double. | |
1316 | */ | |
1317 | left = U_V(dleft); | |
1318 | } | |
1319 | /* left is out of range for UV, right was in range, so promote | |
1320 | right (back) to double. */ | |
1321 | else { | |
1322 | /* The +0.5 is used in 5.6 even though it is not strictly | |
1323 | consistent with the implicit +0 floor in the U_V() | |
1324 | inside the #if 1. */ | |
1325 | dleft = Perl_floor(dleft + 0.5); | |
1326 | use_double = TRUE; | |
1327 | if (dright_valid) | |
1328 | dright = Perl_floor(dright + 0.5); | |
1329 | else | |
1330 | dright = right; | |
1331 | } | |
1332 | } | |
1333 | } | |
787eafbd | 1334 | if (use_double) { |
65202027 | 1335 | NV dans; |
787eafbd | 1336 | |
787eafbd | 1337 | if (!dright) |
cea2e8a9 | 1338 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd | 1339 | |
65202027 | 1340 | dans = Perl_fmod(dleft, dright); |
787eafbd IZ |
1341 | if ((left_neg != right_neg) && dans) |
1342 | dans = dright - dans; | |
1343 | if (right_neg) | |
1344 | dans = -dans; | |
1345 | sv_setnv(TARG, dans); | |
1346 | } | |
1347 | else { | |
1348 | UV ans; | |
1349 | ||
787eafbd | 1350 | if (!right) |
cea2e8a9 | 1351 | DIE(aTHX_ "Illegal modulus zero"); |
787eafbd IZ |
1352 | |
1353 | ans = left % right; | |
1354 | if ((left_neg != right_neg) && ans) | |
1355 | ans = right - ans; | |
1356 | if (right_neg) { | |
1357 | /* XXX may warn: unary minus operator applied to unsigned type */ | |
1358 | /* could change -foo to be (~foo)+1 instead */ | |
1359 | if (ans <= ~((UV)IV_MAX)+1) | |
1360 | sv_setiv(TARG, ~ans+1); | |
1361 | else | |
65202027 | 1362 | sv_setnv(TARG, -(NV)ans); |
787eafbd IZ |
1363 | } |
1364 | else | |
1365 | sv_setuv(TARG, ans); | |
1366 | } | |
1367 | PUSHTARG; | |
1368 | RETURN; | |
79072805 | 1369 | } |
a0d0e21e | 1370 | } |
79072805 | 1371 | |
a0d0e21e LW |
1372 | PP(pp_repeat) |
1373 | { | |
97aff369 | 1374 | dVAR; dSP; dATARGET; tryAMAGICbin(repeat,opASSIGN); |
748a9306 | 1375 | { |
2b573ace JH |
1376 | register IV count; |
1377 | dPOPss; | |
5b295bef | 1378 | SvGETMAGIC(sv); |
2b573ace JH |
1379 | if (SvIOKp(sv)) { |
1380 | if (SvUOK(sv)) { | |
1b6737cc | 1381 | const UV uv = SvUV(sv); |
2b573ace JH |
1382 | if (uv > IV_MAX) |
1383 | count = IV_MAX; /* The best we can do? */ | |
1384 | else | |
1385 | count = uv; | |
1386 | } else { | |
0bd48802 | 1387 | const IV iv = SvIV(sv); |
2b573ace JH |
1388 | if (iv < 0) |
1389 | count = 0; | |
1390 | else | |
1391 | count = iv; | |
1392 | } | |
1393 | } | |
1394 | else if (SvNOKp(sv)) { | |
1b6737cc | 1395 | const NV nv = SvNV(sv); |
2b573ace JH |
1396 | if (nv < 0.0) |
1397 | count = 0; | |
1398 | else | |
1399 | count = (IV)nv; | |
1400 | } | |
1401 | else | |
1402 | count = SvIVx(sv); | |
533c011a | 1403 | if (GIMME == G_ARRAY && PL_op->op_private & OPpREPEAT_DOLIST) { |
a0d0e21e | 1404 | dMARK; |
0bd48802 AL |
1405 | static const char oom_list_extend[] = "Out of memory during list extend"; |
1406 | const I32 items = SP - MARK; | |
1407 | const I32 max = items * count; | |
79072805 | 1408 | |
2b573ace JH |
1409 | MEM_WRAP_CHECK_1(max, SV*, oom_list_extend); |
1410 | /* Did the max computation overflow? */ | |
27d5b266 | 1411 | if (items > 0 && max > 0 && (max < items || max < count)) |
2b573ace | 1412 | Perl_croak(aTHX_ oom_list_extend); |
a0d0e21e LW |
1413 | MEXTEND(MARK, max); |
1414 | if (count > 1) { | |
1415 | while (SP > MARK) { | |
976c8a39 JH |
1416 | #if 0 |
1417 | /* This code was intended to fix 20010809.028: | |
1418 | ||
1419 | $x = 'abcd'; | |
1420 | for (($x =~ /./g) x 2) { | |
1421 | print chop; # "abcdabcd" expected as output. | |
1422 | } | |
1423 | ||
1424 | * but that change (#11635) broke this code: | |
1425 | ||
1426 | $x = [("foo")x2]; # only one "foo" ended up in the anonlist. | |
1427 | ||
1428 | * I can't think of a better fix that doesn't introduce | |
1429 | * an efficiency hit by copying the SVs. The stack isn't | |
1430 | * refcounted, and mortalisation obviously doesn't | |
1431 | * Do The Right Thing when the stack has more than | |
1432 | * one pointer to the same mortal value. | |
1433 | * .robin. | |
1434 | */ | |
e30acc16 RH |
1435 | if (*SP) { |
1436 | *SP = sv_2mortal(newSVsv(*SP)); | |
1437 | SvREADONLY_on(*SP); | |
1438 | } | |
976c8a39 JH |
1439 | #else |
1440 | if (*SP) | |
1441 | SvTEMP_off((*SP)); | |
1442 | #endif | |
a0d0e21e | 1443 | SP--; |
79072805 | 1444 | } |
a0d0e21e LW |
1445 | MARK++; |
1446 | repeatcpy((char*)(MARK + items), (char*)MARK, | |
1447 | items * sizeof(SV*), count - 1); | |
1448 | SP += max; | |
79072805 | 1449 | } |
a0d0e21e LW |
1450 | else if (count <= 0) |
1451 | SP -= items; | |
79072805 | 1452 | } |
a0d0e21e | 1453 | else { /* Note: mark already snarfed by pp_list */ |
0bd48802 | 1454 | SV * const tmpstr = POPs; |
a0d0e21e | 1455 | STRLEN len; |
9b877dbb | 1456 | bool isutf; |
2b573ace JH |
1457 | static const char oom_string_extend[] = |
1458 | "Out of memory during string extend"; | |
a0d0e21e | 1459 | |
a0d0e21e LW |
1460 | SvSetSV(TARG, tmpstr); |
1461 | SvPV_force(TARG, len); | |
9b877dbb | 1462 | isutf = DO_UTF8(TARG); |
8ebc5c01 | 1463 | if (count != 1) { |
1464 | if (count < 1) | |
1465 | SvCUR_set(TARG, 0); | |
1466 | else { | |
c445ea15 | 1467 | const STRLEN max = (UV)count * len; |
2b573ace JH |
1468 | if (len > ((MEM_SIZE)~0)/count) |
1469 | Perl_croak(aTHX_ oom_string_extend); | |
1470 | MEM_WRAP_CHECK_1(max, char, oom_string_extend); | |
8569b9dc | 1471 | SvGROW(TARG, max + 1); |
a0d0e21e | 1472 | repeatcpy(SvPVX(TARG) + len, SvPVX(TARG), len, count - 1); |
b162af07 | 1473 | SvCUR_set(TARG, SvCUR(TARG) * count); |
7a4c00b4 | 1474 | } |
a0d0e21e | 1475 | *SvEND(TARG) = '\0'; |
a0d0e21e | 1476 | } |
dfcb284a GS |
1477 | if (isutf) |
1478 | (void)SvPOK_only_UTF8(TARG); | |
1479 | else | |
1480 | (void)SvPOK_only(TARG); | |
b80b6069 RH |
1481 | |
1482 | if (PL_op->op_private & OPpREPEAT_DOLIST) { | |
1483 | /* The parser saw this as a list repeat, and there | |
1484 | are probably several items on the stack. But we're | |
1485 | in scalar context, and there's no pp_list to save us | |
1486 | now. So drop the rest of the items -- robin@kitsite.com | |
1487 | */ | |
1488 | dMARK; | |
1489 | SP = MARK; | |
1490 | } | |
a0d0e21e | 1491 | PUSHTARG; |
79072805 | 1492 | } |
a0d0e21e | 1493 | RETURN; |
748a9306 | 1494 | } |
a0d0e21e | 1495 | } |
79072805 | 1496 | |
a0d0e21e LW |
1497 | PP(pp_subtract) |
1498 | { | |
97aff369 | 1499 | dVAR; dSP; dATARGET; bool useleft; tryAMAGICbin(subtr,opASSIGN); |
28e5dec8 JH |
1500 | useleft = USE_LEFT(TOPm1s); |
1501 | #ifdef PERL_PRESERVE_IVUV | |
7dca457a NC |
1502 | /* See comments in pp_add (in pp_hot.c) about Overflow, and how |
1503 | "bad things" happen if you rely on signed integers wrapping. */ | |
28e5dec8 JH |
1504 | SvIV_please(TOPs); |
1505 | if (SvIOK(TOPs)) { | |
1506 | /* Unless the left argument is integer in range we are going to have to | |
1507 | use NV maths. Hence only attempt to coerce the right argument if | |
1508 | we know the left is integer. */ | |
9c5ffd7c JH |
1509 | register UV auv = 0; |
1510 | bool auvok = FALSE; | |
7dca457a NC |
1511 | bool a_valid = 0; |
1512 | ||
28e5dec8 | 1513 | if (!useleft) { |
7dca457a NC |
1514 | auv = 0; |
1515 | a_valid = auvok = 1; | |
1516 | /* left operand is undef, treat as zero. */ | |
28e5dec8 JH |
1517 | } else { |
1518 | /* Left operand is defined, so is it IV? */ | |
1519 | SvIV_please(TOPm1s); | |
1520 | if (SvIOK(TOPm1s)) { | |
7dca457a NC |
1521 | if ((auvok = SvUOK(TOPm1s))) |
1522 | auv = SvUVX(TOPm1s); | |
1523 | else { | |
1b6737cc | 1524 | register const IV aiv = SvIVX(TOPm1s); |
7dca457a NC |
1525 | if (aiv >= 0) { |
1526 | auv = aiv; | |
1527 | auvok = 1; /* Now acting as a sign flag. */ | |
1528 | } else { /* 2s complement assumption for IV_MIN */ | |
1529 | auv = (UV)-aiv; | |
28e5dec8 | 1530 | } |
7dca457a NC |
1531 | } |
1532 | a_valid = 1; | |
1533 | } | |
1534 | } | |
1535 | if (a_valid) { | |
1536 | bool result_good = 0; | |
1537 | UV result; | |
1538 | register UV buv; | |
1539 | bool buvok = SvUOK(TOPs); | |
9041c2e3 | 1540 | |
7dca457a NC |
1541 | if (buvok) |
1542 | buv = SvUVX(TOPs); | |
1543 | else { | |
1b6737cc | 1544 | register const IV biv = SvIVX(TOPs); |
7dca457a NC |
1545 | if (biv >= 0) { |
1546 | buv = biv; | |
1547 | buvok = 1; | |
1548 | } else | |
1549 | buv = (UV)-biv; | |
1550 | } | |
1551 | /* ?uvok if value is >= 0. basically, flagged as UV if it's +ve, | |
602f51c4 | 1552 | else "IV" now, independent of how it came in. |
7dca457a NC |
1553 | if a, b represents positive, A, B negative, a maps to -A etc |
1554 | a - b => (a - b) | |
1555 | A - b => -(a + b) | |
1556 | a - B => (a + b) | |
1557 | A - B => -(a - b) | |
1558 | all UV maths. negate result if A negative. | |
1559 | subtract if signs same, add if signs differ. */ | |
1560 | ||
1561 | if (auvok ^ buvok) { | |
1562 | /* Signs differ. */ | |
1563 | result = auv + buv; | |
1564 | if (result >= auv) | |
1565 | result_good = 1; | |
1566 | } else { | |
1567 | /* Signs same */ | |
1568 | if (auv >= buv) { | |
1569 | result = auv - buv; | |
1570 | /* Must get smaller */ | |
1571 | if (result <= auv) | |
1572 | result_good = 1; | |
1573 | } else { | |
1574 | result = buv - auv; | |
1575 | if (result <= buv) { | |
1576 | /* result really should be -(auv-buv). as its negation | |
1577 | of true value, need to swap our result flag */ | |
1578 | auvok = !auvok; | |
1579 | result_good = 1; | |
28e5dec8 | 1580 | } |
28e5dec8 JH |
1581 | } |
1582 | } | |
7dca457a NC |
1583 | if (result_good) { |
1584 | SP--; | |
1585 | if (auvok) | |
1586 | SETu( result ); | |
1587 | else { | |
1588 | /* Negate result */ | |
1589 | if (result <= (UV)IV_MIN) | |
1590 | SETi( -(IV)result ); | |
1591 | else { | |
1592 | /* result valid, but out of range for IV. */ | |
1593 | SETn( -(NV)result ); | |
1594 | } | |
1595 | } | |
1596 | RETURN; | |
1597 | } /* Overflow, drop through to NVs. */ | |
28e5dec8 JH |
1598 | } |
1599 | } | |
1600 | #endif | |
7dca457a | 1601 | useleft = USE_LEFT(TOPm1s); |
a0d0e21e | 1602 | { |
28e5dec8 JH |
1603 | dPOPnv; |
1604 | if (!useleft) { | |
1605 | /* left operand is undef, treat as zero - value */ | |
1606 | SETn(-value); | |
1607 | RETURN; | |
1608 | } | |
1609 | SETn( TOPn - value ); | |
1610 | RETURN; | |
79072805 | 1611 | } |
a0d0e21e | 1612 | } |
79072805 | 1613 | |
a0d0e21e LW |
1614 | PP(pp_left_shift) |
1615 | { | |
97aff369 | 1616 | dVAR; dSP; dATARGET; tryAMAGICbin(lshift,opASSIGN); |
a0d0e21e | 1617 | { |
1b6737cc | 1618 | const IV shift = POPi; |
d0ba1bd2 | 1619 | if (PL_op->op_private & HINT_INTEGER) { |
c445ea15 | 1620 | const IV i = TOPi; |
972b05a9 | 1621 | SETi(i << shift); |
d0ba1bd2 JH |
1622 | } |
1623 | else { | |
c445ea15 | 1624 | const UV u = TOPu; |
972b05a9 | 1625 | SETu(u << shift); |
d0ba1bd2 | 1626 | } |
55497cff | 1627 | RETURN; |
79072805 | 1628 | } |
a0d0e21e | 1629 | } |
79072805 | 1630 | |
a0d0e21e LW |
1631 | PP(pp_right_shift) |
1632 | { | |
97aff369 | 1633 | dVAR; dSP; dATARGET; tryAMAGICbin(rshift,opASSIGN); |
a0d0e21e | 1634 | { |
1b6737cc | 1635 | const IV shift = POPi; |
d0ba1bd2 | 1636 | if (PL_op->op_private & HINT_INTEGER) { |
0bd48802 | 1637 | const IV i = TOPi; |
972b05a9 | 1638 | SETi(i >> shift); |
d0ba1bd2 JH |
1639 | } |
1640 | else { | |
0bd48802 | 1641 | const UV u = TOPu; |
972b05a9 | 1642 | SETu(u >> shift); |
d0ba1bd2 | 1643 | } |
a0d0e21e | 1644 | RETURN; |
93a17b20 | 1645 | } |
79072805 LW |
1646 | } |
1647 | ||
a0d0e21e | 1648 | PP(pp_lt) |
79072805 | 1649 | { |
97aff369 | 1650 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
28e5dec8 JH |
1651 | #ifdef PERL_PRESERVE_IVUV |
1652 | SvIV_please(TOPs); | |
1653 | if (SvIOK(TOPs)) { | |
1654 | SvIV_please(TOPm1s); | |
1655 | if (SvIOK(TOPm1s)) { | |
1656 | bool auvok = SvUOK(TOPm1s); | |
1657 | bool buvok = SvUOK(TOPs); | |
a227d84d | 1658 | |
28e5dec8 | 1659 | if (!auvok && !buvok) { /* ## IV < IV ## */ |
1b6737cc AL |
1660 | const IV aiv = SvIVX(TOPm1s); |
1661 | const IV biv = SvIVX(TOPs); | |
28e5dec8 JH |
1662 | |
1663 | SP--; | |
1664 | SETs(boolSV(aiv < biv)); | |
1665 | RETURN; | |
1666 | } | |
1667 | if (auvok && buvok) { /* ## UV < UV ## */ | |
1b6737cc AL |
1668 | const UV auv = SvUVX(TOPm1s); |
1669 | const UV buv = SvUVX(TOPs); | |
28e5dec8 JH |
1670 | |
1671 | SP--; | |
1672 | SETs(boolSV(auv < buv)); | |
1673 | RETURN; | |
1674 | } | |
1675 | if (auvok) { /* ## UV < IV ## */ | |
1676 | UV auv; | |
1b6737cc | 1677 | const IV biv = SvIVX(TOPs); |
28e5dec8 JH |
1678 | SP--; |
1679 | if (biv < 0) { | |
1680 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
1681 | SETs(&PL_sv_no); | |
1682 | RETURN; | |
1683 | } | |
1684 | auv = SvUVX(TOPs); | |
28e5dec8 JH |
1685 | SETs(boolSV(auv < (UV)biv)); |
1686 | RETURN; | |
1687 | } | |
1688 | { /* ## IV < UV ## */ | |
1b6737cc | 1689 | const IV aiv = SvIVX(TOPm1s); |
28e5dec8 JH |
1690 | UV buv; |
1691 | ||
28e5dec8 JH |
1692 | if (aiv < 0) { |
1693 | /* As (b) is a UV, it's >=0, so it must be < */ | |
1694 | SP--; | |
1695 | SETs(&PL_sv_yes); | |
1696 | RETURN; | |
1697 | } | |
1698 | buv = SvUVX(TOPs); | |
1699 | SP--; | |
28e5dec8 JH |
1700 | SETs(boolSV((UV)aiv < buv)); |
1701 | RETURN; | |
1702 | } | |
1703 | } | |
1704 | } | |
1705 | #endif | |
30de85b6 | 1706 | #ifndef NV_PRESERVES_UV |
50fb3111 NC |
1707 | #ifdef PERL_PRESERVE_IVUV |
1708 | else | |
1709 | #endif | |
0bdaccee NC |
1710 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
1711 | SP--; | |
1712 | SETs(boolSV(SvRV(TOPs) < SvRV(TOPp1s))); | |
1713 | RETURN; | |
1714 | } | |
30de85b6 | 1715 | #endif |
a0d0e21e LW |
1716 | { |
1717 | dPOPnv; | |
54310121 | 1718 | SETs(boolSV(TOPn < value)); |
a0d0e21e | 1719 | RETURN; |
79072805 | 1720 | } |
a0d0e21e | 1721 | } |
79072805 | 1722 | |
a0d0e21e LW |
1723 | PP(pp_gt) |
1724 | { | |
97aff369 | 1725 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
28e5dec8 JH |
1726 | #ifdef PERL_PRESERVE_IVUV |
1727 | SvIV_please(TOPs); | |
1728 | if (SvIOK(TOPs)) { | |
1729 | SvIV_please(TOPm1s); | |
1730 | if (SvIOK(TOPm1s)) { | |
1731 | bool auvok = SvUOK(TOPm1s); | |
1732 | bool buvok = SvUOK(TOPs); | |
a227d84d | 1733 | |
28e5dec8 | 1734 | if (!auvok && !buvok) { /* ## IV > IV ## */ |
1b6737cc AL |
1735 | const IV aiv = SvIVX(TOPm1s); |
1736 | const IV biv = SvIVX(TOPs); | |
1737 | ||
28e5dec8 JH |
1738 | SP--; |
1739 | SETs(boolSV(aiv > biv)); | |
1740 | RETURN; | |
1741 | } | |
1742 | if (auvok && buvok) { /* ## UV > UV ## */ | |
1b6737cc AL |
1743 | const UV auv = SvUVX(TOPm1s); |
1744 | const UV buv = SvUVX(TOPs); | |
28e5dec8 JH |
1745 | |
1746 | SP--; | |
1747 | SETs(boolSV(auv > buv)); | |
1748 | RETURN; | |
1749 | } | |
1750 | if (auvok) { /* ## UV > IV ## */ | |
1751 | UV auv; | |
1b6737cc AL |
1752 | const IV biv = SvIVX(TOPs); |
1753 | ||
28e5dec8 JH |
1754 | SP--; |
1755 | if (biv < 0) { | |
1756 | /* As (a) is a UV, it's >=0, so it must be > */ | |
1757 | SETs(&PL_sv_yes); | |
1758 | RETURN; | |
1759 | } | |
1760 | auv = SvUVX(TOPs); | |
28e5dec8 JH |
1761 | SETs(boolSV(auv > (UV)biv)); |
1762 | RETURN; | |
1763 | } | |
1764 | { /* ## IV > UV ## */ | |
1b6737cc | 1765 | const IV aiv = SvIVX(TOPm1s); |
28e5dec8 JH |
1766 | UV buv; |
1767 | ||
28e5dec8 JH |
1768 | if (aiv < 0) { |
1769 | /* As (b) is a UV, it's >=0, so it cannot be > */ | |
1770 | SP--; | |
1771 | SETs(&PL_sv_no); | |
1772 | RETURN; | |
1773 | } | |
1774 | buv = SvUVX(TOPs); | |
1775 | SP--; | |
28e5dec8 JH |
1776 | SETs(boolSV((UV)aiv > buv)); |
1777 | RETURN; | |
1778 | } | |
1779 | } | |
1780 | } | |
1781 | #endif | |
30de85b6 | 1782 | #ifndef NV_PRESERVES_UV |
50fb3111 NC |
1783 | #ifdef PERL_PRESERVE_IVUV |
1784 | else | |
1785 | #endif | |
0bdaccee | 1786 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
30de85b6 NC |
1787 | SP--; |
1788 | SETs(boolSV(SvRV(TOPs) > SvRV(TOPp1s))); | |
1789 | RETURN; | |
1790 | } | |
1791 | #endif | |
a0d0e21e LW |
1792 | { |
1793 | dPOPnv; | |
54310121 | 1794 | SETs(boolSV(TOPn > value)); |
a0d0e21e | 1795 | RETURN; |
79072805 | 1796 | } |
a0d0e21e LW |
1797 | } |
1798 | ||
1799 | PP(pp_le) | |
1800 | { | |
97aff369 | 1801 | dVAR; dSP; tryAMAGICbinSET(le,0); |
28e5dec8 JH |
1802 | #ifdef PERL_PRESERVE_IVUV |
1803 | SvIV_please(TOPs); | |
1804 | if (SvIOK(TOPs)) { | |
1805 | SvIV_please(TOPm1s); | |
1806 | if (SvIOK(TOPm1s)) { | |
1807 | bool auvok = SvUOK(TOPm1s); | |
1808 | bool buvok = SvUOK(TOPs); | |
a227d84d | 1809 | |
28e5dec8 | 1810 | if (!auvok && !buvok) { /* ## IV <= IV ## */ |
1b6737cc AL |
1811 | const IV aiv = SvIVX(TOPm1s); |
1812 | const IV biv = SvIVX(TOPs); | |
28e5dec8 JH |
1813 | |
1814 | SP--; | |
1815 | SETs(boolSV(aiv <= biv)); | |
1816 | RETURN; | |
1817 | } | |
1818 | if (auvok && buvok) { /* ## UV <= UV ## */ | |
1819 | UV auv = SvUVX(TOPm1s); | |
1820 | UV buv = SvUVX(TOPs); | |
1821 | ||
1822 | SP--; | |
1823 | SETs(boolSV(auv <= buv)); | |
1824 | RETURN; | |
1825 | } | |
1826 | if (auvok) { /* ## UV <= IV ## */ | |
1827 | UV auv; | |
1b6737cc AL |
1828 | const IV biv = SvIVX(TOPs); |
1829 | ||
28e5dec8 JH |
1830 | SP--; |
1831 | if (biv < 0) { | |
1832 | /* As (a) is a UV, it's >=0, so a cannot be <= */ | |
1833 | SETs(&PL_sv_no); | |
1834 | RETURN; | |
1835 | } | |
1836 | auv = SvUVX(TOPs); | |
28e5dec8 JH |
1837 | SETs(boolSV(auv <= (UV)biv)); |
1838 | RETURN; | |
1839 | } | |
1840 | { /* ## IV <= UV ## */ | |
1b6737cc | 1841 | const IV aiv = SvIVX(TOPm1s); |
28e5dec8 | 1842 | UV buv; |
1b6737cc | 1843 | |
28e5dec8 JH |
1844 | if (aiv < 0) { |
1845 | /* As (b) is a UV, it's >=0, so a must be <= */ | |
1846 | SP--; | |
1847 | SETs(&PL_sv_yes); | |
1848 | RETURN; | |
1849 | } | |
1850 | buv = SvUVX(TOPs); | |
1851 | SP--; | |
28e5dec8 JH |
1852 | SETs(boolSV((UV)aiv <= buv)); |
1853 | RETURN; | |
1854 | } | |
1855 | } | |
1856 | } | |
1857 | #endif | |
30de85b6 | 1858 | #ifndef NV_PRESERVES_UV |
50fb3111 NC |
1859 | #ifdef PERL_PRESERVE_IVUV |
1860 | else | |
1861 | #endif | |
0bdaccee | 1862 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
30de85b6 NC |
1863 | SP--; |
1864 | SETs(boolSV(SvRV(TOPs) <= SvRV(TOPp1s))); | |
1865 | RETURN; | |
1866 | } | |
1867 | #endif | |
a0d0e21e LW |
1868 | { |
1869 | dPOPnv; | |
54310121 | 1870 | SETs(boolSV(TOPn <= value)); |
a0d0e21e | 1871 | RETURN; |
79072805 | 1872 | } |
a0d0e21e LW |
1873 | } |
1874 | ||
1875 | PP(pp_ge) | |
1876 | { | |
97aff369 | 1877 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
28e5dec8 JH |
1878 | #ifdef PERL_PRESERVE_IVUV |
1879 | SvIV_please(TOPs); | |
1880 | if (SvIOK(TOPs)) { | |
1881 | SvIV_please(TOPm1s); | |
1882 | if (SvIOK(TOPm1s)) { | |
1883 | bool auvok = SvUOK(TOPm1s); | |
1884 | bool buvok = SvUOK(TOPs); | |
a227d84d | 1885 | |
28e5dec8 | 1886 | if (!auvok && !buvok) { /* ## IV >= IV ## */ |
1b6737cc AL |
1887 | const IV aiv = SvIVX(TOPm1s); |
1888 | const IV biv = SvIVX(TOPs); | |
1889 | ||
28e5dec8 JH |
1890 | SP--; |
1891 | SETs(boolSV(aiv >= biv)); | |
1892 | RETURN; | |
1893 | } | |
1894 | if (auvok && buvok) { /* ## UV >= UV ## */ | |
1b6737cc AL |
1895 | const UV auv = SvUVX(TOPm1s); |
1896 | const UV buv = SvUVX(TOPs); | |
1897 | ||
28e5dec8 JH |
1898 | SP--; |
1899 | SETs(boolSV(auv >= buv)); | |
1900 | RETURN; | |
1901 | } | |
1902 | if (auvok) { /* ## UV >= IV ## */ | |
1903 | UV auv; | |
1b6737cc AL |
1904 | const IV biv = SvIVX(TOPs); |
1905 | ||
28e5dec8 JH |
1906 | SP--; |
1907 | if (biv < 0) { | |
1908 | /* As (a) is a UV, it's >=0, so it must be >= */ | |
1909 | SETs(&PL_sv_yes); | |
1910 | RETURN; | |
1911 | } | |
1912 | auv = SvUVX(TOPs); | |
28e5dec8 JH |
1913 | SETs(boolSV(auv >= (UV)biv)); |
1914 | RETURN; | |
1915 | } | |
1916 | { /* ## IV >= UV ## */ | |
1b6737cc | 1917 | const IV aiv = SvIVX(TOPm1s); |
28e5dec8 | 1918 | UV buv; |
1b6737cc | 1919 | |
28e5dec8 JH |
1920 | if (aiv < 0) { |
1921 | /* As (b) is a UV, it's >=0, so a cannot be >= */ | |
1922 | SP--; | |
1923 | SETs(&PL_sv_no); | |
1924 | RETURN; | |
1925 | } | |
1926 | buv = SvUVX(TOPs); | |
1927 | SP--; | |
28e5dec8 JH |
1928 | SETs(boolSV((UV)aiv >= buv)); |
1929 | RETURN; | |
1930 | } | |
1931 | } | |
1932 | } | |
1933 | #endif | |
30de85b6 | 1934 | #ifndef NV_PRESERVES_UV |
50fb3111 NC |
1935 | #ifdef PERL_PRESERVE_IVUV |
1936 | else | |
1937 | #endif | |
0bdaccee | 1938 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
30de85b6 NC |
1939 | SP--; |
1940 | SETs(boolSV(SvRV(TOPs) >= SvRV(TOPp1s))); | |
1941 | RETURN; | |
1942 | } | |
1943 | #endif | |
a0d0e21e LW |
1944 | { |
1945 | dPOPnv; | |
54310121 | 1946 | SETs(boolSV(TOPn >= value)); |
a0d0e21e | 1947 | RETURN; |
79072805 | 1948 | } |
a0d0e21e | 1949 | } |
79072805 | 1950 | |
a0d0e21e LW |
1951 | PP(pp_ne) |
1952 | { | |
97aff369 | 1953 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
3bb2c415 | 1954 | #ifndef NV_PRESERVES_UV |
0bdaccee | 1955 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
e61d22ef NC |
1956 | SP--; |
1957 | SETs(boolSV(SvRV(TOPs) != SvRV(TOPp1s))); | |
3bb2c415 JH |
1958 | RETURN; |
1959 | } | |
1960 | #endif | |
28e5dec8 JH |
1961 | #ifdef PERL_PRESERVE_IVUV |
1962 | SvIV_please(TOPs); | |
1963 | if (SvIOK(TOPs)) { | |
1964 | SvIV_please(TOPm1s); | |
1965 | if (SvIOK(TOPm1s)) { | |
0bd48802 AL |
1966 | const bool auvok = SvUOK(TOPm1s); |
1967 | const bool buvok = SvUOK(TOPs); | |
a227d84d | 1968 | |
30de85b6 NC |
1969 | if (auvok == buvok) { /* ## IV == IV or UV == UV ## */ |
1970 | /* Casting IV to UV before comparison isn't going to matter | |
1971 | on 2s complement. On 1s complement or sign&magnitude | |
1972 | (if we have any of them) it could make negative zero | |
1973 | differ from normal zero. As I understand it. (Need to | |
1974 | check - is negative zero implementation defined behaviour | |
1975 | anyway?). NWC */ | |
1b6737cc AL |
1976 | const UV buv = SvUVX(POPs); |
1977 | const UV auv = SvUVX(TOPs); | |
1978 | ||
28e5dec8 JH |
1979 | SETs(boolSV(auv != buv)); |
1980 | RETURN; | |
1981 | } | |
1982 | { /* ## Mixed IV,UV ## */ | |
1983 | IV iv; | |
1984 | UV uv; | |
1985 | ||
1986 | /* != is commutative so swap if needed (save code) */ | |
1987 | if (auvok) { | |
1988 | /* swap. top of stack (b) is the iv */ | |
1989 | iv = SvIVX(TOPs); | |
1990 | SP--; | |
1991 | if (iv < 0) { | |
1992 | /* As (a) is a UV, it's >0, so it cannot be == */ | |
1993 | SETs(&PL_sv_yes); | |
1994 | RETURN; | |
1995 | } | |
1996 | uv = SvUVX(TOPs); | |
1997 | } else { | |
1998 | iv = SvIVX(TOPm1s); | |
1999 | SP--; | |
2000 | if (iv < 0) { | |
2001 | /* As (b) is a UV, it's >0, so it cannot be == */ | |
2002 | SETs(&PL_sv_yes); | |
2003 | RETURN; | |
2004 | } | |
2005 | uv = SvUVX(*(SP+1)); /* Do I want TOPp1s() ? */ | |
2006 | } | |
28e5dec8 JH |
2007 | SETs(boolSV((UV)iv != uv)); |
2008 | RETURN; | |
2009 | } | |
2010 | } | |
2011 | } | |
2012 | #endif | |
a0d0e21e LW |
2013 | { |
2014 | dPOPnv; | |
54310121 | 2015 | SETs(boolSV(TOPn != value)); |
a0d0e21e LW |
2016 | RETURN; |
2017 | } | |
79072805 LW |
2018 | } |
2019 | ||
a0d0e21e | 2020 | PP(pp_ncmp) |
79072805 | 2021 | { |
97aff369 | 2022 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
d8c7644e | 2023 | #ifndef NV_PRESERVES_UV |
0bdaccee | 2024 | if (SvROK(TOPs) && !SvAMAGIC(TOPs) && SvROK(TOPm1s) && !SvAMAGIC(TOPm1s)) { |
0bd48802 AL |
2025 | const UV right = PTR2UV(SvRV(POPs)); |
2026 | const UV left = PTR2UV(SvRV(TOPs)); | |
e61d22ef | 2027 | SETi((left > right) - (left < right)); |
d8c7644e JH |
2028 | RETURN; |
2029 | } | |
2030 | #endif | |
28e5dec8 JH |
2031 | #ifdef PERL_PRESERVE_IVUV |
2032 | /* Fortunately it seems NaN isn't IOK */ | |
2033 | SvIV_please(TOPs); | |
2034 | if (SvIOK(TOPs)) { | |
2035 | SvIV_please(TOPm1s); | |
2036 | if (SvIOK(TOPm1s)) { | |
1b6737cc AL |
2037 | const bool leftuvok = SvUOK(TOPm1s); |
2038 | const bool rightuvok = SvUOK(TOPs); | |
28e5dec8 JH |
2039 | I32 value; |
2040 | if (!leftuvok && !rightuvok) { /* ## IV <=> IV ## */ | |
1b6737cc AL |
2041 | const IV leftiv = SvIVX(TOPm1s); |
2042 | const IV rightiv = SvIVX(TOPs); | |
28e5dec8 JH |
2043 | |
2044 | if (leftiv > rightiv) | |
2045 | value = 1; | |
2046 | else if (leftiv < rightiv) | |
2047 | value = -1; | |
2048 | else | |
2049 | value = 0; | |
2050 | } else if (leftuvok && rightuvok) { /* ## UV <=> UV ## */ | |
1b6737cc AL |
2051 | const UV leftuv = SvUVX(TOPm1s); |
2052 | const UV rightuv = SvUVX(TOPs); | |
28e5dec8 JH |
2053 | |
2054 | if (leftuv > rightuv) | |
2055 | value = 1; | |
2056 | else if (leftuv < rightuv) | |
2057 | value = -1; | |
2058 | else | |
2059 | value = 0; | |
2060 | } else if (leftuvok) { /* ## UV <=> IV ## */ | |
1b6737cc | 2061 | const IV rightiv = SvIVX(TOPs); |
28e5dec8 JH |
2062 | if (rightiv < 0) { |
2063 | /* As (a) is a UV, it's >=0, so it cannot be < */ | |
2064 | value = 1; | |
2065 | } else { | |
1b6737cc | 2066 | const UV leftuv = SvUVX(TOPm1s); |
83bac5dd | 2067 | if (leftuv > (UV)rightiv) { |
28e5dec8 JH |
2068 | value = 1; |
2069 | } else if (leftuv < (UV)rightiv) { | |
2070 | value = -1; | |
2071 | } else { | |
2072 | value = 0; | |
2073 | } | |
2074 | } | |
2075 | } else { /* ## IV <=> UV ## */ | |
1b6737cc | 2076 | const IV leftiv = SvIVX(TOPm1s); |
28e5dec8 JH |
2077 | if (leftiv < 0) { |
2078 | /* As (b) is a UV, it's >=0, so it must be < */ | |
2079 | value = -1; | |
2080 | } else { | |
1b6737cc | 2081 | const UV rightuv = SvUVX(TOPs); |
83bac5dd | 2082 | if ((UV)leftiv > rightuv) { |
28e5dec8 | 2083 | value = 1; |
83bac5dd | 2084 | } else if ((UV)leftiv < rightuv) { |
28e5dec8 JH |
2085 | value = -1; |
2086 | } else { | |
2087 | value = 0; | |
2088 | } | |
2089 | } | |
2090 | } | |
2091 | SP--; | |
2092 | SETi(value); | |
2093 | RETURN; | |
2094 | } | |
2095 | } | |
2096 | #endif | |
a0d0e21e LW |
2097 | { |
2098 | dPOPTOPnnrl; | |
2099 | I32 value; | |
79072805 | 2100 | |
a3540c92 | 2101 | #ifdef Perl_isnan |
1ad04cfd JH |
2102 | if (Perl_isnan(left) || Perl_isnan(right)) { |
2103 | SETs(&PL_sv_undef); | |
2104 | RETURN; | |
2105 | } | |
2106 | value = (left > right) - (left < right); | |
2107 | #else | |
ff0cee69 | 2108 | if (left == right) |
a0d0e21e | 2109 | value = 0; |
a0d0e21e LW |
2110 | else if (left < right) |
2111 | value = -1; | |
44a8e56a | 2112 | else if (left > right) |
2113 | value = 1; | |
2114 | else { | |
3280af22 | 2115 | SETs(&PL_sv_undef); |
44a8e56a | 2116 | RETURN; |
2117 | } | |
1ad04cfd | 2118 | #endif |
a0d0e21e LW |
2119 | SETi(value); |
2120 | RETURN; | |
79072805 | 2121 | } |
a0d0e21e | 2122 | } |
79072805 | 2123 | |
afd9910b | 2124 | PP(pp_sle) |
a0d0e21e | 2125 | { |
97aff369 | 2126 | dVAR; dSP; |
79072805 | 2127 | |
afd9910b NC |
2128 | int amg_type = sle_amg; |
2129 | int multiplier = 1; | |
2130 | int rhs = 1; | |
79072805 | 2131 | |
afd9910b NC |
2132 | switch (PL_op->op_type) { |
2133 | case OP_SLT: | |
2134 | amg_type = slt_amg; | |
2135 | /* cmp < 0 */ | |
2136 | rhs = 0; | |
2137 | break; | |
2138 | case OP_SGT: | |
2139 | amg_type = sgt_amg; | |
2140 | /* cmp > 0 */ | |
2141 | multiplier = -1; | |
2142 | rhs = 0; | |
2143 | break; | |
2144 | case OP_SGE: | |
2145 | amg_type = sge_amg; | |
2146 | /* cmp >= 0 */ | |
2147 | multiplier = -1; | |
2148 | break; | |
79072805 | 2149 | } |
79072805 | 2150 | |
afd9910b | 2151 | tryAMAGICbinSET_var(amg_type,0); |
a0d0e21e LW |
2152 | { |
2153 | dPOPTOPssrl; | |
1b6737cc | 2154 | const int cmp = (IN_LOCALE_RUNTIME |
bbce6d69 | 2155 | ? sv_cmp_locale(left, right) |
2156 | : sv_cmp(left, right)); | |
afd9910b | 2157 | SETs(boolSV(cmp * multiplier < rhs)); |
a0d0e21e LW |
2158 | RETURN; |
2159 | } | |
2160 | } | |
79072805 | 2161 | |
36477c24 | 2162 | PP(pp_seq) |
2163 | { | |
97aff369 | 2164 | dVAR; dSP; tryAMAGICbinSET(seq,0); |
36477c24 | 2165 | { |
2166 | dPOPTOPssrl; | |
54310121 | 2167 | SETs(boolSV(sv_eq(left, right))); |
a0d0e21e LW |
2168 | RETURN; |
2169 | } | |
2170 | } | |
79072805 | 2171 | |
a0d0e21e | 2172 | PP(pp_sne) |
79072805 | 2173 | { |
97aff369 | 2174 | dVAR; dSP; tryAMAGICbinSET(sne,0); |
a0d0e21e LW |
2175 | { |
2176 | dPOPTOPssrl; | |
54310121 | 2177 | SETs(boolSV(!sv_eq(left, right))); |
a0d0e21e | 2178 | RETURN; |
463ee0b2 | 2179 | } |
79072805 LW |
2180 | } |
2181 | ||
a0d0e21e | 2182 | PP(pp_scmp) |
79072805 | 2183 | { |
97aff369 | 2184 | dVAR; dSP; dTARGET; tryAMAGICbin(scmp,0); |
a0d0e21e LW |
2185 | { |
2186 | dPOPTOPssrl; | |
1b6737cc | 2187 | const int cmp = (IN_LOCALE_RUNTIME |
bbce6d69 | 2188 | ? sv_cmp_locale(left, right) |
2189 | : sv_cmp(left, right)); | |
2190 | SETi( cmp ); | |
a0d0e21e LW |
2191 | RETURN; |
2192 | } | |
2193 | } | |
79072805 | 2194 | |
55497cff | 2195 | PP(pp_bit_and) |
2196 | { | |
97aff369 | 2197 | dVAR; dSP; dATARGET; tryAMAGICbin(band,opASSIGN); |
a0d0e21e LW |
2198 | { |
2199 | dPOPTOPssrl; | |
5b295bef RD |
2200 | SvGETMAGIC(left); |
2201 | SvGETMAGIC(right); | |
4633a7c4 | 2202 | if (SvNIOKp(left) || SvNIOKp(right)) { |
d0ba1bd2 | 2203 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2204 | const IV i = SvIV_nomg(left) & SvIV_nomg(right); |
972b05a9 | 2205 | SETi(i); |
d0ba1bd2 JH |
2206 | } |
2207 | else { | |
1b6737cc | 2208 | const UV u = SvUV_nomg(left) & SvUV_nomg(right); |
972b05a9 | 2209 | SETu(u); |
d0ba1bd2 | 2210 | } |
a0d0e21e LW |
2211 | } |
2212 | else { | |
533c011a | 2213 | do_vop(PL_op->op_type, TARG, left, right); |
a0d0e21e LW |
2214 | SETTARG; |
2215 | } | |
2216 | RETURN; | |
2217 | } | |
2218 | } | |
79072805 | 2219 | |
a0d0e21e LW |
2220 | PP(pp_bit_or) |
2221 | { | |
3658c1f1 NC |
2222 | dVAR; dSP; dATARGET; |
2223 | const int op_type = PL_op->op_type; | |
2224 | ||
2225 | tryAMAGICbin_var((op_type == OP_BIT_OR ? bor_amg : bxor_amg), opASSIGN); | |
a0d0e21e LW |
2226 | { |
2227 | dPOPTOPssrl; | |
5b295bef RD |
2228 | SvGETMAGIC(left); |
2229 | SvGETMAGIC(right); | |
4633a7c4 | 2230 | if (SvNIOKp(left) || SvNIOKp(right)) { |
d0ba1bd2 | 2231 | if (PL_op->op_private & HINT_INTEGER) { |
3658c1f1 NC |
2232 | const IV l = (USE_LEFT(left) ? SvIV_nomg(left) : 0); |
2233 | const IV r = SvIV_nomg(right); | |
2234 | const IV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2235 | SETi(result); | |
d0ba1bd2 JH |
2236 | } |
2237 | else { | |
3658c1f1 NC |
2238 | const UV l = (USE_LEFT(left) ? SvUV_nomg(left) : 0); |
2239 | const UV r = SvUV_nomg(right); | |
2240 | const UV result = op_type == OP_BIT_OR ? (l | r) : (l ^ r); | |
2241 | SETu(result); | |
d0ba1bd2 | 2242 | } |
a0d0e21e LW |
2243 | } |
2244 | else { | |
3658c1f1 | 2245 | do_vop(op_type, TARG, left, right); |
a0d0e21e LW |
2246 | SETTARG; |
2247 | } | |
2248 | RETURN; | |
79072805 | 2249 | } |
a0d0e21e | 2250 | } |
79072805 | 2251 | |
a0d0e21e LW |
2252 | PP(pp_negate) |
2253 | { | |
97aff369 | 2254 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
a0d0e21e LW |
2255 | { |
2256 | dTOPss; | |
1b6737cc | 2257 | const int flags = SvFLAGS(sv); |
5b295bef | 2258 | SvGETMAGIC(sv); |
28e5dec8 JH |
2259 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
2260 | /* It's publicly an integer, or privately an integer-not-float */ | |
2261 | oops_its_an_int: | |
9b0e499b GS |
2262 | if (SvIsUV(sv)) { |
2263 | if (SvIVX(sv) == IV_MIN) { | |
28e5dec8 | 2264 | /* 2s complement assumption. */ |
9b0e499b GS |
2265 | SETi(SvIVX(sv)); /* special case: -((UV)IV_MAX+1) == IV_MIN */ |
2266 | RETURN; | |
2267 | } | |
2268 | else if (SvUVX(sv) <= IV_MAX) { | |
beccb14c | 2269 | SETi(-SvIVX(sv)); |
9b0e499b GS |
2270 | RETURN; |
2271 | } | |
2272 | } | |
2273 | else if (SvIVX(sv) != IV_MIN) { | |
2274 | SETi(-SvIVX(sv)); | |
2275 | RETURN; | |
2276 | } | |
28e5dec8 JH |
2277 | #ifdef PERL_PRESERVE_IVUV |
2278 | else { | |
2279 | SETu((UV)IV_MIN); | |
2280 | RETURN; | |
2281 | } | |
2282 | #endif | |
9b0e499b GS |
2283 | } |
2284 | if (SvNIOKp(sv)) | |
a0d0e21e | 2285 | SETn(-SvNV(sv)); |
4633a7c4 | 2286 | else if (SvPOKp(sv)) { |
a0d0e21e | 2287 | STRLEN len; |
c445ea15 | 2288 | const char * const s = SvPV_const(sv, len); |
bbce6d69 | 2289 | if (isIDFIRST(*s)) { |
a0d0e21e LW |
2290 | sv_setpvn(TARG, "-", 1); |
2291 | sv_catsv(TARG, sv); | |
79072805 | 2292 | } |
a0d0e21e LW |
2293 | else if (*s == '+' || *s == '-') { |
2294 | sv_setsv(TARG, sv); | |
2295 | *SvPV_force(TARG, len) = *s == '-' ? '+' : '-'; | |
79072805 | 2296 | } |
8eb28a70 JH |
2297 | else if (DO_UTF8(sv)) { |
2298 | SvIV_please(sv); | |
2299 | if (SvIOK(sv)) | |
2300 | goto oops_its_an_int; | |
2301 | if (SvNOK(sv)) | |
2302 | sv_setnv(TARG, -SvNV(sv)); | |
2303 | else { | |
2304 | sv_setpvn(TARG, "-", 1); | |
2305 | sv_catsv(TARG, sv); | |
2306 | } | |
834a4ddd | 2307 | } |
28e5dec8 | 2308 | else { |
8eb28a70 JH |
2309 | SvIV_please(sv); |
2310 | if (SvIOK(sv)) | |
2311 | goto oops_its_an_int; | |
2312 | sv_setnv(TARG, -SvNV(sv)); | |
28e5dec8 | 2313 | } |
a0d0e21e | 2314 | SETTARG; |
79072805 | 2315 | } |
4633a7c4 LW |
2316 | else |
2317 | SETn(-SvNV(sv)); | |
79072805 | 2318 | } |
a0d0e21e | 2319 | RETURN; |
79072805 LW |
2320 | } |
2321 | ||
a0d0e21e | 2322 | PP(pp_not) |
79072805 | 2323 | { |
97aff369 | 2324 | dVAR; dSP; tryAMAGICunSET(not); |
3280af22 | 2325 | *PL_stack_sp = boolSV(!SvTRUE(*PL_stack_sp)); |
a0d0e21e | 2326 | return NORMAL; |
79072805 LW |
2327 | } |
2328 | ||
a0d0e21e | 2329 | PP(pp_complement) |
79072805 | 2330 | { |
97aff369 | 2331 | dVAR; dSP; dTARGET; tryAMAGICun(compl); |
a0d0e21e LW |
2332 | { |
2333 | dTOPss; | |
5b295bef | 2334 | SvGETMAGIC(sv); |
4633a7c4 | 2335 | if (SvNIOKp(sv)) { |
d0ba1bd2 | 2336 | if (PL_op->op_private & HINT_INTEGER) { |
1b6737cc | 2337 | const IV i = ~SvIV_nomg(sv); |
972b05a9 | 2338 | SETi(i); |
d0ba1bd2 JH |
2339 | } |
2340 | else { | |
1b6737cc | 2341 | const UV u = ~SvUV_nomg(sv); |
972b05a9 | 2342 | SETu(u); |
d0ba1bd2 | 2343 | } |
a0d0e21e LW |
2344 | } |
2345 | else { | |
51723571 | 2346 | register U8 *tmps; |
55497cff | 2347 | register I32 anum; |
a0d0e21e LW |
2348 | STRLEN len; |
2349 | ||
10516c54 | 2350 | (void)SvPV_nomg_const(sv,len); /* force check for uninit var */ |
891f9566 | 2351 | sv_setsv_nomg(TARG, sv); |
51723571 | 2352 | tmps = (U8*)SvPV_force(TARG, len); |
a0d0e21e | 2353 | anum = len; |
1d68d6cd | 2354 | if (SvUTF8(TARG)) { |
a1ca4561 | 2355 | /* Calculate exact length, let's not estimate. */ |
1d68d6cd SC |
2356 | STRLEN targlen = 0; |
2357 | U8 *result; | |
51723571 | 2358 | U8 *send; |
ba210ebe | 2359 | STRLEN l; |
a1ca4561 YST |
2360 | UV nchar = 0; |
2361 | UV nwide = 0; | |
1d68d6cd SC |
2362 | |
2363 | send = tmps + len; | |
2364 | while (tmps < send) { | |
1b6737cc | 2365 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, UTF8_ALLOW_ANYUV); |
1d68d6cd | 2366 | tmps += UTF8SKIP(tmps); |
5bbb0b5a | 2367 | targlen += UNISKIP(~c); |
a1ca4561 YST |
2368 | nchar++; |
2369 | if (c > 0xff) | |
2370 | nwide++; | |
1d68d6cd SC |
2371 | } |
2372 | ||
2373 | /* Now rewind strings and write them. */ | |
2374 | tmps -= len; | |
a1ca4561 YST |
2375 | |
2376 | if (nwide) { | |
a02a5408 | 2377 | Newxz(result, targlen + 1, U8); |
a1ca4561 | 2378 | while (tmps < send) { |
1b6737cc | 2379 | const UV c = utf8n_to_uvchr(tmps, send-tmps, &l, UTF8_ALLOW_ANYUV); |
a1ca4561 | 2380 | tmps += UTF8SKIP(tmps); |
b851fbc1 | 2381 | result = uvchr_to_utf8_flags(result, ~c, UNICODE_ALLOW_ANY); |
a1ca4561 YST |
2382 | } |
2383 | *result = '\0'; | |
2384 | result -= targlen; | |
2385 | sv_setpvn(TARG, (char*)result, targlen); | |
2386 | SvUTF8_on(TARG); | |
2387 | } | |
2388 | else { | |
a02a5408 | 2389 | Newxz(result, nchar + 1, U8); |
a1ca4561 | 2390 | while (tmps < send) { |
1b6737cc | 2391 | const U8 c = (U8)utf8n_to_uvchr(tmps, 0, &l, UTF8_ALLOW_ANY); |
a1ca4561 YST |
2392 | tmps += UTF8SKIP(tmps); |
2393 | *result++ = ~c; | |
2394 | } | |
2395 | *result = '\0'; | |
2396 | result -= nchar; | |
2397 | sv_setpvn(TARG, (char*)result, nchar); | |
d0a21e00 | 2398 | SvUTF8_off(TARG); |
1d68d6cd | 2399 | } |
1d68d6cd SC |
2400 | Safefree(result); |
2401 | SETs(TARG); | |
2402 | RETURN; | |
2403 | } | |
a0d0e21e | 2404 | #ifdef LIBERAL |
51723571 JH |
2405 | { |
2406 | register long *tmpl; | |
2407 | for ( ; anum && (unsigned long)tmps % sizeof(long); anum--, tmps++) | |
2408 | *tmps = ~*tmps; | |
2409 | tmpl = (long*)tmps; | |
2410 | for ( ; anum >= sizeof(long); anum -= sizeof(long), tmpl++) | |
2411 | *tmpl = ~*tmpl; | |
2412 | tmps = (U8*)tmpl; | |
2413 | } | |
a0d0e21e LW |
2414 | #endif |
2415 | for ( ; anum > 0; anum--, tmps++) | |
2416 | *tmps = ~*tmps; | |
2417 | ||
2418 | SETs(TARG); | |
2419 | } | |
2420 | RETURN; | |
2421 | } | |
79072805 LW |
2422 | } |
2423 | ||
a0d0e21e LW |
2424 | /* integer versions of some of the above */ |
2425 | ||
a0d0e21e | 2426 | PP(pp_i_multiply) |
79072805 | 2427 | { |
97aff369 | 2428 | dVAR; dSP; dATARGET; tryAMAGICbin(mult,opASSIGN); |
a0d0e21e LW |
2429 | { |
2430 | dPOPTOPiirl; | |
2431 | SETi( left * right ); | |
2432 | RETURN; | |
2433 | } | |
79072805 LW |
2434 | } |
2435 | ||
a0d0e21e | 2436 | PP(pp_i_divide) |
79072805 | 2437 | { |
ece1bcef | 2438 | IV num; |
97aff369 | 2439 | dVAR; dSP; dATARGET; tryAMAGICbin(div,opASSIGN); |
a0d0e21e LW |
2440 | { |
2441 | dPOPiv; | |
2442 | if (value == 0) | |
ece1bcef SP |
2443 | DIE(aTHX_ "Illegal division by zero"); |
2444 | num = POPi; | |
a0cec769 YST |
2445 | |
2446 | /* avoid FPE_INTOVF on some platforms when num is IV_MIN */ | |
2447 | if (value == -1) | |
2448 | value = - num; | |
2449 | else | |
2450 | value = num / value; | |
a0d0e21e LW |
2451 | PUSHi( value ); |
2452 | RETURN; | |
2453 | } | |
79072805 LW |
2454 | } |
2455 | ||
224ec323 JH |
2456 | STATIC |
2457 | PP(pp_i_modulo_0) | |
2458 | { | |
2459 | /* This is the vanilla old i_modulo. */ | |
27da23d5 | 2460 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
224ec323 JH |
2461 | { |
2462 | dPOPTOPiirl; | |
2463 | if (!right) | |
2464 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2465 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2466 | if (right == -1) | |
2467 | SETi( 0 ); | |
2468 | else | |
2469 | SETi( left % right ); | |
224ec323 JH |
2470 | RETURN; |
2471 | } | |
2472 | } | |
2473 | ||
11010fa3 | 2474 | #if defined(__GLIBC__) && IVSIZE == 8 |
224ec323 JH |
2475 | STATIC |
2476 | PP(pp_i_modulo_1) | |
2477 | { | |
224ec323 | 2478 | /* This is the i_modulo with the workaround for the _moddi3 bug |
fce2b89e | 2479 | * in (at least) glibc 2.2.5 (the PERL_ABS() the workaround). |
224ec323 | 2480 | * See below for pp_i_modulo. */ |
97aff369 | 2481 | dVAR; dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
224ec323 JH |
2482 | { |
2483 | dPOPTOPiirl; | |
2484 | if (!right) | |
2485 | DIE(aTHX_ "Illegal modulus zero"); | |
a0cec769 YST |
2486 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2487 | if (right == -1) | |
2488 | SETi( 0 ); | |
2489 | else | |
2490 | SETi( left % PERL_ABS(right) ); | |
224ec323 JH |
2491 | RETURN; |
2492 | } | |
224ec323 | 2493 | } |
fce2b89e | 2494 | #endif |
224ec323 | 2495 | |
a0d0e21e | 2496 | PP(pp_i_modulo) |
79072805 | 2497 | { |
27da23d5 | 2498 | dVAR; dSP; dATARGET; tryAMAGICbin(modulo,opASSIGN); |
224ec323 JH |
2499 | { |
2500 | dPOPTOPiirl; | |
2501 | if (!right) | |
2502 | DIE(aTHX_ "Illegal modulus zero"); | |
2503 | /* The assumption is to use hereafter the old vanilla version... */ | |
2504 | PL_op->op_ppaddr = | |
2505 | PL_ppaddr[OP_I_MODULO] = | |
1c127fab | 2506 | Perl_pp_i_modulo_0; |
224ec323 JH |
2507 | /* .. but if we have glibc, we might have a buggy _moddi3 |
2508 | * (at least glicb 2.2.5 is known to have this bug), in other | |
2509 | * words our integer modulus with negative quad as the second | |
2510 | * argument might be broken. Test for this and re-patch the | |
2511 | * opcode dispatch table if that is the case, remembering to | |
2512 | * also apply the workaround so that this first round works | |
2513 | * right, too. See [perl #9402] for more information. */ | |
2514 | #if defined(__GLIBC__) && IVSIZE == 8 | |
2515 | { | |
2516 | IV l = 3; | |
2517 | IV r = -10; | |
2518 | /* Cannot do this check with inlined IV constants since | |
2519 | * that seems to work correctly even with the buggy glibc. */ | |
2520 | if (l % r == -3) { | |
2521 | /* Yikes, we have the bug. | |
2522 | * Patch in the workaround version. */ | |
2523 | PL_op->op_ppaddr = | |
2524 | PL_ppaddr[OP_I_MODULO] = | |
2525 | &Perl_pp_i_modulo_1; | |
2526 | /* Make certain we work right this time, too. */ | |
32fdb065 | 2527 | right = PERL_ABS(right); |
224ec323 JH |
2528 | } |
2529 | } | |
2530 | #endif | |
a0cec769 YST |
2531 | /* avoid FPE_INTOVF on some platforms when left is IV_MIN */ |
2532 | if (right == -1) | |
2533 | SETi( 0 ); | |
2534 | else | |
2535 | SETi( left % right ); | |
224ec323 JH |
2536 | RETURN; |
2537 | } | |
79072805 LW |
2538 | } |
2539 | ||
a0d0e21e | 2540 | PP(pp_i_add) |
79072805 | 2541 | { |
97aff369 | 2542 | dVAR; dSP; dATARGET; tryAMAGICbin(add,opASSIGN); |
a0d0e21e | 2543 | { |
5e66d4f1 | 2544 | dPOPTOPiirl_ul; |
a0d0e21e LW |
2545 | SETi( left + right ); |
2546 | RETURN; | |
79072805 | 2547 | } |
79072805 LW |
2548 | } |
2549 | ||
a0d0e21e | 2550 | PP(pp_i_subtract) |
79072805 | 2551 | { |
97aff369 | 2552 | dVAR; dSP; dATARGET; tryAMAGICbin(subtr,opASSIGN); |
a0d0e21e | 2553 | { |
5e66d4f1 | 2554 | dPOPTOPiirl_ul; |
a0d0e21e LW |
2555 | SETi( left - right ); |
2556 | RETURN; | |
79072805 | 2557 | } |
79072805 LW |
2558 | } |
2559 | ||
a0d0e21e | 2560 | PP(pp_i_lt) |
79072805 | 2561 | { |
97aff369 | 2562 | dVAR; dSP; tryAMAGICbinSET(lt,0); |
a0d0e21e LW |
2563 | { |
2564 | dPOPTOPiirl; | |
54310121 | 2565 | SETs(boolSV(left < right)); |
a0d0e21e LW |
2566 | RETURN; |
2567 | } | |
79072805 LW |
2568 | } |
2569 | ||
a0d0e21e | 2570 | PP(pp_i_gt) |
79072805 | 2571 | { |
97aff369 | 2572 | dVAR; dSP; tryAMAGICbinSET(gt,0); |
a0d0e21e LW |
2573 | { |
2574 | dPOPTOPiirl; | |
54310121 | 2575 | SETs(boolSV(left > right)); |
a0d0e21e LW |
2576 | RETURN; |
2577 | } | |
79072805 LW |
2578 | } |
2579 | ||
a0d0e21e | 2580 | PP(pp_i_le) |
79072805 | 2581 | { |
97aff369 | 2582 | dVAR; dSP; tryAMAGICbinSET(le,0); |
a0d0e21e LW |
2583 | { |
2584 | dPOPTOPiirl; | |
54310121 | 2585 | SETs(boolSV(left <= right)); |
a0d0e21e | 2586 | RETURN; |
85e6fe83 | 2587 | } |
79072805 LW |
2588 | } |
2589 | ||
a0d0e21e | 2590 | PP(pp_i_ge) |
79072805 | 2591 | { |
97aff369 | 2592 | dVAR; dSP; tryAMAGICbinSET(ge,0); |
a0d0e21e LW |
2593 | { |
2594 | dPOPTOPiirl; | |
54310121 | 2595 | SETs(boolSV(left >= right)); |
a0d0e21e LW |
2596 | RETURN; |
2597 | } | |
79072805 LW |
2598 | } |
2599 | ||
a0d0e21e | 2600 | PP(pp_i_eq) |
79072805 | 2601 | { |
97aff369 | 2602 | dVAR; dSP; tryAMAGICbinSET(eq,0); |
a0d0e21e LW |
2603 | { |
2604 | dPOPTOPiirl; | |
54310121 | 2605 | SETs(boolSV(left == right)); |
a0d0e21e LW |
2606 | RETURN; |
2607 | } | |
79072805 LW |
2608 | } |
2609 | ||
a0d0e21e | 2610 | PP(pp_i_ne) |
79072805 | 2611 | { |
97aff369 | 2612 | dVAR; dSP; tryAMAGICbinSET(ne,0); |
a0d0e21e LW |
2613 | { |
2614 | dPOPTOPiirl; | |
54310121 | 2615 | SETs(boolSV(left != right)); |
a0d0e21e LW |
2616 | RETURN; |
2617 | } | |
79072805 LW |
2618 | } |
2619 | ||
a0d0e21e | 2620 | PP(pp_i_ncmp) |
79072805 | 2621 | { |
97aff369 | 2622 | dVAR; dSP; dTARGET; tryAMAGICbin(ncmp,0); |
a0d0e21e LW |
2623 | { |
2624 | dPOPTOPiirl; | |
2625 | I32 value; | |
79072805 | 2626 | |
a0d0e21e | 2627 | if (left > right) |
79072805 | 2628 | value = 1; |
a0d0e21e | 2629 | else if (left < right) |
79072805 | 2630 | value = -1; |
a0d0e21e | 2631 | else |
79072805 | 2632 | value = 0; |
a0d0e21e LW |
2633 | SETi(value); |
2634 | RETURN; | |
79072805 | 2635 | } |
85e6fe83 LW |
2636 | } |
2637 | ||
2638 | PP(pp_i_negate) | |
2639 | { | |
97aff369 | 2640 | dVAR; dSP; dTARGET; tryAMAGICun(neg); |
85e6fe83 LW |
2641 | SETi(-TOPi); |
2642 | RETURN; | |
2643 | } | |
2644 | ||
79072805 LW |
2645 | /* High falutin' math. */ |
2646 | ||
2647 | PP(pp_atan2) | |
2648 | { | |
97aff369 | 2649 | dVAR; dSP; dTARGET; tryAMAGICbin(atan2,0); |
a0d0e21e LW |
2650 | { |
2651 | dPOPTOPnnrl; | |
65202027 | 2652 | SETn(Perl_atan2(left, right)); |
a0d0e21e LW |
2653 | RETURN; |
2654 | } | |
79072805 LW |
2655 | } |
2656 | ||
2657 | PP(pp_sin) | |
2658 | { | |
71302fe3 NC |
2659 | dVAR; dSP; dTARGET; |
2660 | int amg_type = sin_amg; | |
2661 | const char *neg_report = NULL; | |
bc81784a | 2662 | NV (*func)(NV) = Perl_sin; |
71302fe3 NC |
2663 | const int op_type = PL_op->op_type; |
2664 | ||
2665 | switch (op_type) { | |
2666 | case OP_COS: | |
2667 | amg_type = cos_amg; | |
bc81784a | 2668 | func = Perl_cos; |
71302fe3 NC |
2669 | break; |
2670 | case OP_EXP: | |
2671 | amg_type = exp_amg; | |
bc81784a | 2672 | func = Perl_exp; |
71302fe3 NC |
2673 | break; |
2674 | case OP_LOG: | |
2675 | amg_type = log_amg; | |
bc81784a | 2676 | func = Perl_log; |
71302fe3 NC |
2677 | neg_report = "log"; |
2678 | break; | |
2679 | case OP_SQRT: | |
2680 | amg_type = sqrt_amg; | |
bc81784a | 2681 | func = Perl_sqrt; |
71302fe3 NC |
2682 | neg_report = "sqrt"; |
2683 | break; | |
a0d0e21e | 2684 | } |
79072805 | 2685 | |
71302fe3 | 2686 | tryAMAGICun_var(amg_type); |
a0d0e21e | 2687 | { |
1b6737cc | 2688 | const NV value = POPn; |
71302fe3 NC |
2689 | if (neg_report) { |
2690 | if (op_type == OP_LOG ? (value <= 0.0) : (value < 0.0)) { | |
2691 | SET_NUMERIC_STANDARD(); | |
2692 | DIE(aTHX_ "Can't take %s of %"NVgf, neg_report, value); | |
2693 | } | |
2694 | } | |
2695 | XPUSHn(func(value)); | |
a0d0e21e LW |
2696 | RETURN; |
2697 | } | |
79072805 LW |
2698 | } |
2699 | ||
56cb0a1c AD |
2700 | /* Support Configure command-line overrides for rand() functions. |
2701 | After 5.005, perhaps we should replace this by Configure support | |
2702 | for drand48(), random(), or rand(). For 5.005, though, maintain | |
2703 | compatibility by calling rand() but allow the user to override it. | |
2704 | See INSTALL for details. --Andy Dougherty 15 July 1998 | |
2705 | */ | |
85ab1d1d JH |
2706 | /* Now it's after 5.005, and Configure supports drand48() and random(), |
2707 | in addition to rand(). So the overrides should not be needed any more. | |
2708 | --Jarkko Hietaniemi 27 September 1998 | |
2709 | */ | |
2710 | ||
2711 | #ifndef HAS_DRAND48_PROTO | |
20ce7b12 | 2712 | extern double drand48 (void); |
56cb0a1c AD |
2713 | #endif |
2714 | ||
79072805 LW |
2715 | PP(pp_rand) |
2716 | { | |
97aff369 | 2717 | dVAR; dSP; dTARGET; |
65202027 | 2718 | NV value; |
79072805 LW |
2719 | if (MAXARG < 1) |
2720 | value = 1.0; | |
2721 | else | |
2722 | value = POPn; | |
2723 | if (value == 0.0) | |
2724 | value = 1.0; | |
80252599 | 2725 | if (!PL_srand_called) { |
85ab1d1d | 2726 | (void)seedDrand01((Rand_seed_t)seed()); |
80252599 | 2727 | PL_srand_called = TRUE; |
93dc8474 | 2728 | } |
85ab1d1d | 2729 | value *= Drand01(); |
79072805 LW |
2730 | XPUSHn(value); |
2731 | RETURN; | |
2732 | } | |
2733 | ||
2734 | PP(pp_srand) | |
2735 | { | |
97aff369 | 2736 | dVAR; dSP; |
0bd48802 | 2737 | const UV anum = (MAXARG < 1) ? seed() : POPu; |
85ab1d1d | 2738 | (void)seedDrand01((Rand_seed_t)anum); |
80252599 | 2739 | PL_srand_called = TRUE; |
79072805 LW |
2740 | EXTEND(SP, 1); |
2741 | RETPUSHYES; | |
2742 | } | |
2743 | ||
79072805 LW |
2744 | PP(pp_int) |
2745 | { | |
97aff369 | 2746 | dVAR; dSP; dTARGET; tryAMAGICun(int); |
774d564b | 2747 | { |
1b6737cc | 2748 | const IV iv = TOPi; /* attempt to convert to IV if possible. */ |
28e5dec8 JH |
2749 | /* XXX it's arguable that compiler casting to IV might be subtly |
2750 | different from modf (for numbers inside (IV_MIN,UV_MAX)) in which | |
2751 | else preferring IV has introduced a subtle behaviour change bug. OTOH | |
2752 | relying on floating point to be accurate is a bug. */ | |
2753 | ||
922c4365 MHM |
2754 | if (!SvOK(TOPs)) |
2755 | SETu(0); | |
2756 | else if (SvIOK(TOPs)) { | |
28e5dec8 | 2757 | if (SvIsUV(TOPs)) { |
1b6737cc | 2758 | const UV uv = TOPu; |
28e5dec8 JH |
2759 | SETu(uv); |
2760 | } else | |
2761 | SETi(iv); | |
2762 | } else { | |
1b6737cc | 2763 | const NV value = TOPn; |
1048ea30 | 2764 | if (value >= 0.0) { |
28e5dec8 JH |
2765 | if (value < (NV)UV_MAX + 0.5) { |
2766 | SETu(U_V(value)); | |
2767 | } else { | |
059a1014 | 2768 | SETn(Perl_floor(value)); |
28e5dec8 | 2769 | } |
1048ea30 | 2770 | } |
28e5dec8 JH |
2771 | else { |
2772 | if (value > (NV)IV_MIN - 0.5) { | |
2773 | SETi(I_V(value)); | |
2774 | } else { | |
1bbae031 | 2775 | SETn(Perl_ceil(value)); |
28e5dec8 JH |
2776 | } |
2777 | } | |
774d564b | 2778 | } |
79072805 | 2779 | } |
79072805 LW |
2780 | RETURN; |
2781 | } | |
2782 | ||
463ee0b2 LW |
2783 | PP(pp_abs) |
2784 | { | |
97aff369 | 2785 | dVAR; dSP; dTARGET; tryAMAGICun(abs); |
a0d0e21e | 2786 | { |
28e5dec8 | 2787 | /* This will cache the NV value if string isn't actually integer */ |
1b6737cc | 2788 | const IV iv = TOPi; |
a227d84d | 2789 | |
922c4365 MHM |
2790 | if (!SvOK(TOPs)) |
2791 | SETu(0); | |
2792 | else if (SvIOK(TOPs)) { | |
28e5dec8 JH |
2793 | /* IVX is precise */ |
2794 | if (SvIsUV(TOPs)) { | |
2795 | SETu(TOPu); /* force it to be numeric only */ | |
2796 | } else { | |
2797 | if (iv >= 0) { | |
2798 | SETi(iv); | |
2799 | } else { | |
2800 | if (iv != IV_MIN) { | |
2801 | SETi(-iv); | |
2802 | } else { | |
2803 | /* 2s complement assumption. Also, not really needed as | |
2804 | IV_MIN and -IV_MIN should both be %100...00 and NV-able */ | |
2805 | SETu(IV_MIN); | |
2806 | } | |
a227d84d | 2807 | } |
28e5dec8 JH |
2808 | } |
2809 | } else{ | |
1b6737cc | 2810 | const NV value = TOPn; |
774d564b | 2811 | if (value < 0.0) |
1b6737cc | 2812 | SETn(-value); |
a4474c9e DD |
2813 | else |
2814 | SETn(value); | |
774d564b | 2815 | } |
a0d0e21e | 2816 | } |
774d564b | 2817 | RETURN; |
463ee0b2 LW |
2818 | } |
2819 | ||
79072805 LW |
2820 | PP(pp_oct) |
2821 | { | |
97aff369 | 2822 | dVAR; dSP; dTARGET; |
5c144d81 | 2823 | const char *tmps; |
53305cf1 | 2824 | I32 flags = PERL_SCAN_ALLOW_UNDERSCORES; |
6f894ead | 2825 | STRLEN len; |
53305cf1 NC |
2826 | NV result_nv; |
2827 | UV result_uv; | |
1b6737cc | 2828 | SV* const sv = POPs; |
79072805 | 2829 | |
349d4f2f | 2830 | tmps = (SvPV_const(sv, len)); |
2bc69dc4 NIS |
2831 | if (DO_UTF8(sv)) { |
2832 | /* If Unicode, try to downgrade | |
2833 | * If not possible, croak. */ | |
1b6737cc | 2834 | SV* const tsv = sv_2mortal(newSVsv(sv)); |
2bc69dc4 NIS |
2835 | |
2836 | SvUTF8_on(tsv); | |
2837 | sv_utf8_downgrade(tsv, FALSE); | |
349d4f2f | 2838 | tmps = SvPV_const(tsv, len); |
2bc69dc4 | 2839 | } |
daa2adfd NC |
2840 | if (PL_op->op_type == OP_HEX) |
2841 | goto hex; | |
2842 | ||
6f894ead | 2843 | while (*tmps && len && isSPACE(*tmps)) |
53305cf1 | 2844 | tmps++, len--; |
9e24b6e2 | 2845 | if (*tmps == '0') |
53305cf1 | 2846 | tmps++, len--; |
daa2adfd NC |
2847 | if (*tmps == 'x') { |
2848 | hex: | |
53305cf1 | 2849 | result_uv = grok_hex (tmps, &len, &flags, &result_nv); |
daa2adfd | 2850 | } |
9e24b6e2 | 2851 | else if (*tmps == 'b') |
53305cf1 | 2852 | result_uv = grok_bin (tmps, &len, &flags, &result_nv); |
464e2e8a | 2853 | else |
53305cf1 NC |
2854 | result_uv = grok_oct (tmps, &len, &flags, &result_nv); |
2855 | ||
2856 | if (flags & PERL_SCAN_GREATER_THAN_UV_MAX) { | |
2857 | XPUSHn(result_nv); | |
2858 | } | |
2859 | else { | |
2860 | XPUSHu(result_uv); | |
2861 | } | |
79072805 LW |
2862 | RETURN; |
2863 | } | |
2864 | ||
2865 | /* String stuff. */ | |
2866 | ||
2867 | PP(pp_length) | |
2868 | { | |
97aff369 | 2869 | dVAR; dSP; dTARGET; |
0bd48802 | 2870 | SV * const sv = TOPs; |
a0ed51b3 | 2871 | |
7e2040f0 GS |
2872 | if (DO_UTF8(sv)) |
2873 | SETi(sv_len_utf8(sv)); | |
2874 | else | |
2875 | SETi(sv_len(sv)); | |
79072805 LW |
2876 | RETURN; |
2877 | } | |
2878 | ||
2879 | PP(pp_substr) | |
2880 | { | |
97aff369 | 2881 | dVAR; dSP; dTARGET; |
79072805 | 2882 | SV *sv; |
9c5ffd7c | 2883 | I32 len = 0; |
463ee0b2 | 2884 | STRLEN curlen; |
9402d6ed | 2885 | STRLEN utf8_curlen; |
79072805 LW |
2886 | I32 pos; |
2887 | I32 rem; | |
84902520 | 2888 | I32 fail; |
e1ec3a88 AL |
2889 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; |
2890 | const char *tmps; | |
2891 | const I32 arybase = PL_curcop->cop_arybase; | |
9402d6ed | 2892 | SV *repl_sv = NULL; |
cbbf8932 | 2893 | const char *repl = NULL; |
7b8d334a | 2894 | STRLEN repl_len; |
1b6737cc | 2895 | const int num_args = PL_op->op_private & 7; |
13e30c65 | 2896 | bool repl_need_utf8_upgrade = FALSE; |
9402d6ed | 2897 | bool repl_is_utf8 = FALSE; |
79072805 | 2898 | |
20408e3c | 2899 | SvTAINTED_off(TARG); /* decontaminate */ |
7e2040f0 | 2900 | SvUTF8_off(TARG); /* decontaminate */ |
78f9721b SM |
2901 | if (num_args > 2) { |
2902 | if (num_args > 3) { | |
9402d6ed | 2903 | repl_sv = POPs; |
83003860 | 2904 | repl = SvPV_const(repl_sv, repl_len); |
9402d6ed | 2905 | repl_is_utf8 = DO_UTF8(repl_sv) && SvCUR(repl_sv); |
7b8d334a | 2906 | } |
79072805 | 2907 | len = POPi; |
5d82c453 | 2908 | } |
84902520 | 2909 | pos = POPi; |
79072805 | 2910 | sv = POPs; |
849ca7ee | 2911 | PUTBACK; |
9402d6ed JH |
2912 | if (repl_sv) { |
2913 | if (repl_is_utf8) { | |
2914 | if (!DO_UTF8(sv)) | |
2915 | sv_utf8_upgrade(sv); | |
2916 | } | |
13e30c65 JH |
2917 | else if (DO_UTF8(sv)) |
2918 | repl_need_utf8_upgrade = TRUE; | |
9402d6ed | 2919 | } |
5c144d81 | 2920 | tmps = SvPV_const(sv, curlen); |
7e2040f0 | 2921 | if (DO_UTF8(sv)) { |
9402d6ed JH |
2922 | utf8_curlen = sv_len_utf8(sv); |
2923 | if (utf8_curlen == curlen) | |
2924 | utf8_curlen = 0; | |
a0ed51b3 | 2925 | else |
9402d6ed | 2926 | curlen = utf8_curlen; |
a0ed51b3 | 2927 | } |
d1c2b58a | 2928 | else |
9402d6ed | 2929 | utf8_curlen = 0; |
a0ed51b3 | 2930 | |
84902520 TB |
2931 | if (pos >= arybase) { |
2932 | pos -= arybase; | |
2933 | rem = curlen-pos; | |
2934 | fail = rem; | |
78f9721b | 2935 | if (num_args > 2) { |
5d82c453 GA |
2936 | if (len < 0) { |
2937 | rem += len; | |
2938 | if (rem < 0) | |
2939 | rem = 0; | |
2940 | } | |
2941 | else if (rem > len) | |
2942 | rem = len; | |
2943 | } | |
68dc0745 | 2944 | } |
84902520 | 2945 | else { |
5d82c453 | 2946 | pos += curlen; |
78f9721b | 2947 | if (num_args < 3) |
5d82c453 GA |
2948 | rem = curlen; |
2949 | else if (len >= 0) { | |
2950 | rem = pos+len; | |
2951 | if (rem > (I32)curlen) | |
2952 | rem = curlen; | |
2953 | } | |
2954 | else { | |
2955 | rem = curlen+len; | |
2956 | if (rem < pos) | |
2957 | rem = pos; | |
2958 | } | |
2959 | if (pos < 0) | |
2960 | pos = 0; | |
2961 | fail = rem; | |
2962 | rem -= pos; | |
84902520 TB |
2963 | } |
2964 | if (fail < 0) { | |
e476b1b5 GS |
2965 | if (lvalue || repl) |
2966 | Perl_croak(aTHX_ "substr outside of string"); | |
2967 | if (ckWARN(WARN_SUBSTR)) | |
9014280d | 2968 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), "substr outside of string"); |
2304df62 AD |
2969 | RETPUSHUNDEF; |
2970 | } | |
79072805 | 2971 | else { |
1b6737cc AL |
2972 | const I32 upos = pos; |
2973 | const I32 urem = rem; | |
9402d6ed | 2974 | if (utf8_curlen) |
a0ed51b3 | 2975 | sv_pos_u2b(sv, &pos, &rem); |
79072805 | 2976 | tmps += pos; |
781e7547 DM |
2977 | /* we either return a PV or an LV. If the TARG hasn't been used |
2978 | * before, or is of that type, reuse it; otherwise use a mortal | |
2979 | * instead. Note that LVs can have an extended lifetime, so also | |
2980 | * dont reuse if refcount > 1 (bug #20933) */ | |
2981 | if (SvTYPE(TARG) > SVt_NULL) { | |
2982 | if ( (SvTYPE(TARG) == SVt_PVLV) | |
2983 | ? (!lvalue || SvREFCNT(TARG) > 1) | |
2984 | : lvalue) | |
2985 | { | |
2986 | TARG = sv_newmortal(); | |
2987 | } | |
2988 | } | |
2989 | ||
79072805 | 2990 | sv_setpvn(TARG, tmps, rem); |
12aa1545 | 2991 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 2992 | sv_unmagic(TARG, PERL_MAGIC_collxfrm); |
12aa1545 | 2993 | #endif |
9402d6ed | 2994 | if (utf8_curlen) |
7f66633b | 2995 | SvUTF8_on(TARG); |
f7928d6c | 2996 | if (repl) { |
13e30c65 JH |
2997 | SV* repl_sv_copy = NULL; |
2998 | ||
2999 | if (repl_need_utf8_upgrade) { | |
3000 | repl_sv_copy = newSVsv(repl_sv); | |
3001 | sv_utf8_upgrade(repl_sv_copy); | |
349d4f2f | 3002 | repl = SvPV_const(repl_sv_copy, repl_len); |
13e30c65 JH |
3003 | repl_is_utf8 = DO_UTF8(repl_sv_copy) && SvCUR(sv); |
3004 | } | |
c8faf1c5 | 3005 | sv_insert(sv, pos, rem, repl, repl_len); |
9402d6ed | 3006 | if (repl_is_utf8) |
f7928d6c | 3007 | SvUTF8_on(sv); |
9402d6ed JH |
3008 | if (repl_sv_copy) |
3009 | SvREFCNT_dec(repl_sv_copy); | |
f7928d6c | 3010 | } |
c8faf1c5 | 3011 | else if (lvalue) { /* it's an lvalue! */ |
dedeecda | 3012 | if (!SvGMAGICAL(sv)) { |
3013 | if (SvROK(sv)) { | |
13c5b33c | 3014 | SvPV_force_nolen(sv); |
599cee73 | 3015 | if (ckWARN(WARN_SUBSTR)) |
9014280d | 3016 | Perl_warner(aTHX_ packWARN(WARN_SUBSTR), |
599cee73 | 3017 | "Attempt to use reference as lvalue in substr"); |
dedeecda | 3018 | } |
f7877b28 NC |
3019 | if (isGV_with_GP(sv)) |
3020 | SvPV_force_nolen(sv); | |
3021 | else if (SvOK(sv)) /* is it defined ? */ | |
7f66633b | 3022 | (void)SvPOK_only_UTF8(sv); |
dedeecda | 3023 | else |
3024 | sv_setpvn(sv,"",0); /* avoid lexical reincarnation */ | |
3025 | } | |
5f05dabc | 3026 | |
a0d0e21e LW |
3027 | if (SvTYPE(TARG) < SVt_PVLV) { |
3028 | sv_upgrade(TARG, SVt_PVLV); | |
c445ea15 | 3029 | sv_magic(TARG, NULL, PERL_MAGIC_substr, NULL, 0); |
ed6116ce | 3030 | } |
6214ab63 | 3031 | else |
0c34ef67 | 3032 | SvOK_off(TARG); |
a0d0e21e | 3033 | |
5f05dabc | 3034 | LvTYPE(TARG) = 'x'; |
6ff81951 GS |
3035 | if (LvTARG(TARG) != sv) { |
3036 | if (LvTARG(TARG)) | |
3037 | SvREFCNT_dec(LvTARG(TARG)); | |
3038 | LvTARG(TARG) = SvREFCNT_inc(sv); | |
3039 | } | |
9aa983d2 JH |
3040 | LvTARGOFF(TARG) = upos; |
3041 | LvTARGLEN(TARG) = urem; | |
79072805 LW |
3042 | } |
3043 | } | |
849ca7ee | 3044 | SPAGAIN; |
79072805 LW |
3045 | PUSHs(TARG); /* avoid SvSETMAGIC here */ |
3046 | RETURN; | |
3047 | } | |
3048 | ||
3049 | PP(pp_vec) | |
3050 | { | |
97aff369 | 3051 | dVAR; dSP; dTARGET; |
1b6737cc AL |
3052 | register const IV size = POPi; |
3053 | register const IV offset = POPi; | |
3054 | register SV * const src = POPs; | |
3055 | const I32 lvalue = PL_op->op_flags & OPf_MOD || LVRET; | |
a0d0e21e | 3056 | |
81e118e0 JH |
3057 | SvTAINTED_off(TARG); /* decontaminate */ |
3058 | if (lvalue) { /* it's an lvalue! */ | |
24aef97f HS |
3059 | if (SvREFCNT(TARG) > 1) /* don't share the TARG (#20933) */ |
3060 | TARG = sv_newmortal(); | |
81e118e0 JH |
3061 | if (SvTYPE(TARG) < SVt_PVLV) { |
3062 | sv_upgrade(TARG, SVt_PVLV); | |
c445ea15 | 3063 | sv_magic(TARG, NULL, PERL_MAGIC_vec, NULL, 0); |
79072805 | 3064 | } |
81e118e0 JH |
3065 | LvTYPE(TARG) = 'v'; |
3066 | if (LvTARG(TARG) != src) { | |
3067 | if (LvTARG(TARG)) | |
3068 | SvREFCNT_dec(LvTARG(TARG)); | |
3069 | LvTARG(TARG) = SvREFCNT_inc(src); | |
79072805 | 3070 | } |
81e118e0 JH |
3071 | LvTARGOFF(TARG) = offset; |
3072 | LvTARGLEN(TARG) = size; | |
79072805 LW |
3073 | } |
3074 | ||
81e118e0 | 3075 | sv_setuv(TARG, do_vecget(src, offset, size)); |
79072805 LW |
3076 | PUSHs(TARG); |
3077 | RETURN; | |
3078 | } | |
3079 | ||
3080 | PP(pp_index) | |
3081 | { | |
97aff369 | 3082 | dVAR; dSP; dTARGET; |
79072805 LW |
3083 | SV *big; |
3084 | SV *little; | |
c445ea15 | 3085 | SV *temp = NULL; |
ad66a58c | 3086 | STRLEN biglen; |
2723d216 | 3087 | STRLEN llen = 0; |
79072805 LW |
3088 | I32 offset; |
3089 | I32 retval; | |
10516c54 NC |
3090 | const char *tmps; |
3091 | const char *tmps2; | |
1b6737cc | 3092 | const I32 arybase = PL_curcop->cop_arybase; |
2f040f7f NC |
3093 | bool big_utf8; |
3094 | bool little_utf8; | |
2723d216 | 3095 | const bool is_index = PL_op->op_type == OP_INDEX; |
79072805 | 3096 | |
2723d216 NC |
3097 | if (MAXARG >= 3) { |
3098 | /* arybase is in characters, like offset, so combine prior to the | |
3099 | UTF-8 to bytes calculation. */ | |
79072805 | 3100 | offset = POPi - arybase; |
2723d216 | 3101 | } |
79072805 LW |
3102 | little = POPs; |
3103 | big = POPs; | |
e609e586 NC |
3104 | big_utf8 = DO_UTF8(big); |
3105 | little_utf8 = DO_UTF8(little); | |
3106 | if (big_utf8 ^ little_utf8) { | |
3107 | /* One needs to be upgraded. */ | |
2f040f7f NC |
3108 | if (little_utf8 && !PL_encoding) { |
3109 | /* Well, maybe instead we might be able to downgrade the small | |
3110 | string? */ | |
3111 | STRLEN little_len; | |
3112 | const U8 * const little_pv = (U8*) SvPV_const(little, little_len); | |
3113 | char * const pv = (char*)bytes_from_utf8(little_pv, &little_len, | |
3114 | &little_utf8); | |
3115 | if (little_utf8) { | |
3116 | /* If the large string is ISO-8859-1, and it's not possible to | |
3117 | convert the small string to ISO-8859-1, then there is no | |
3118 | way that it could be found anywhere by index. */ | |
3119 | retval = -1; | |
3120 | goto fail; | |
3121 | } | |
e609e586 | 3122 | |
2f040f7f NC |
3123 | /* At this point, pv is a malloc()ed string. So donate it to temp |
3124 | to ensure it will get free()d */ | |
3125 | little = temp = newSV(0); | |
3126 | sv_usepvn(temp, pv, little_len); | |
e609e586 | 3127 | } else { |
2f040f7f NC |
3128 | SV * const bytes = little_utf8 ? big : little; |
3129 | STRLEN len; | |
3130 | const char * const p = SvPV_const(bytes, len); | |
3131 | ||
3132 | temp = newSVpvn(p, len); | |
3133 | ||
3134 | if (PL_encoding) { | |
3135 | sv_recode_to_utf8(temp, PL_encoding); | |
3136 | } else { | |
3137 | sv_utf8_upgrade(temp); | |
3138 | } | |
3139 | if (little_utf8) { | |
3140 | big = temp; | |
3141 | big_utf8 = TRUE; | |
3142 | } else { | |
3143 | little = temp; | |
3144 | } | |
e609e586 NC |
3145 | } |
3146 | } | |
a4a77288 NC |
3147 | /* Don't actually need the NULL initialisation, but it keeps gcc quiet. */ |
3148 | tmps2 = is_index ? NULL : SvPV_const(little, llen); | |
ad66a58c | 3149 | tmps = SvPV_const(big, biglen); |
e609e586 | 3150 | |
79072805 | 3151 | if (MAXARG < 3) |
2723d216 | 3152 | offset = is_index ? 0 : biglen; |
a0ed51b3 | 3153 | else { |
ad66a58c | 3154 | if (big_utf8 && offset > 0) |
a0ed51b3 | 3155 | sv_pos_u2b(big, &offset, 0); |
a2b7337b | 3156 | offset += llen; |
a0ed51b3 | 3157 | } |
79072805 LW |
3158 | if (offset < 0) |
3159 | offset = 0; | |
ad66a58c NC |
3160 | else if (offset > (I32)biglen) |
3161 | offset = biglen; | |
2723d216 NC |
3162 | if (!(tmps2 = is_index |
3163 | ? fbm_instr((unsigned char*)tmps + offset, | |
3164 | (unsigned char*)tmps + biglen, little, 0) | |
3165 | : rninstr(tmps, tmps + offset, | |
3166 | tmps2, tmps2 + llen))) | |
a0ed51b3 | 3167 | retval = -1; |
ad66a58c | 3168 | else { |
a0ed51b3 | 3169 | retval = tmps2 - tmps; |
ad66a58c NC |
3170 | if (retval > 0 && big_utf8) |
3171 | sv_pos_b2u(big, &retval); | |
3172 | } | |
e609e586 NC |
3173 | if (temp) |
3174 | SvREFCNT_dec(temp); | |
2723d216 | 3175 | fail: |
a0ed51b3 | 3176 | PUSHi(retval + arybase); |
79072805 LW |
3177 | RETURN; |
3178 | } | |
3179 | ||
3180 | PP(pp_sprintf) | |
3181 | { | |
97aff369 | 3182 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
79072805 | 3183 | do_sprintf(TARG, SP-MARK, MARK+1); |
bbce6d69 | 3184 | TAINT_IF(SvTAINTED(TARG)); |
79072805 LW |
3185 | SP = ORIGMARK; |
3186 | PUSHTARG; | |
3187 | RETURN; | |
3188 | } | |
3189 | ||
79072805 LW |
3190 | PP(pp_ord) |
3191 | { | |
97aff369 | 3192 | dVAR; dSP; dTARGET; |
7df053ec | 3193 | SV *argsv = POPs; |
ba210ebe | 3194 | STRLEN len; |
349d4f2f | 3195 | const U8 *s = (U8*)SvPV_const(argsv, len); |
121910a4 JH |
3196 | SV *tmpsv; |
3197 | ||
799ef3cb | 3198 | if (PL_encoding && SvPOK(argsv) && !DO_UTF8(argsv)) { |
121910a4 | 3199 | tmpsv = sv_2mortal(newSVsv(argsv)); |
799ef3cb | 3200 | s = (U8*)sv_recode_to_utf8(tmpsv, PL_encoding); |
121910a4 JH |
3201 | argsv = tmpsv; |
3202 | } | |
79072805 | 3203 | |
872c91ae | 3204 | XPUSHu(DO_UTF8(argsv) ? |
89ebb4a3 | 3205 | utf8n_to_uvchr(s, UTF8_MAXBYTES, 0, UTF8_ALLOW_ANYUV) : |
872c91ae | 3206 | (*s & 0xff)); |
68795e93 | 3207 | |
79072805 LW |
3208 | RETURN; |
3209 | } | |
3210 | ||
463ee0b2 LW |
3211 | PP(pp_chr) |
3212 | { | |
97aff369 | 3213 | dVAR; dSP; dTARGET; |
463ee0b2 | 3214 | char *tmps; |
8a064bd6 JH |
3215 | UV value; |
3216 | ||
3217 | if (((SvIOK_notUV(TOPs) && SvIV(TOPs) < 0) | |
3218 | || | |
3219 | (SvNOK(TOPs) && SvNV(TOPs) < 0.0))) { | |
3220 | if (IN_BYTES) { | |
3221 | value = POPu; /* chr(-1) eq chr(0xff), etc. */ | |
3222 | } else { | |
3223 | (void) POPs; /* Ignore the argument value. */ | |
3224 | value = UNICODE_REPLACEMENT; | |
3225 | } | |
3226 | } else { | |
3227 | value = POPu; | |
3228 | } | |
463ee0b2 | 3229 | |
862a34c6 | 3230 | SvUPGRADE(TARG,SVt_PV); |
a0ed51b3 | 3231 | |
0064a8a9 | 3232 | if (value > 255 && !IN_BYTES) { |
eb160463 | 3233 | SvGROW(TARG, (STRLEN)UNISKIP(value)+1); |
62961d2e | 3234 | tmps = (char*)uvchr_to_utf8_flags((U8*)SvPVX(TARG), value, 0); |
349d4f2f | 3235 | SvCUR_set(TARG, tmps - SvPVX_const(TARG)); |
a0ed51b3 LW |
3236 | *tmps = '\0'; |
3237 | (void)SvPOK_only(TARG); | |
aa6ffa16 | 3238 | SvUTF8_on(TARG); |
a0ed51b3 LW |
3239 | XPUSHs(TARG); |
3240 | RETURN; | |
3241 | } | |
3242 | ||
748a9306 | 3243 | SvGROW(TARG,2); |
463ee0b2 LW |
3244 | SvCUR_set(TARG, 1); |
3245 | tmps = SvPVX(TARG); | |
eb160463 | 3246 | *tmps++ = (char)value; |
748a9306 | 3247 | *tmps = '\0'; |
a0d0e21e | 3248 | (void)SvPOK_only(TARG); |
88632417 | 3249 | if (PL_encoding && !IN_BYTES) { |
799ef3cb | 3250 | sv_recode_to_utf8(TARG, PL_encoding); |
88632417 JH |
3251 | tmps = SvPVX(TARG); |
3252 | if (SvCUR(TARG) == 0 || !is_utf8_string((U8*)tmps, SvCUR(TARG)) || | |
3253 | memEQ(tmps, "\xef\xbf\xbd\0", 4)) { | |
d5a15ac2 JH |
3254 | SvGROW(TARG, 3); |
3255 | tmps = SvPVX(TARG); | |
88632417 JH |
3256 | SvCUR_set(TARG, 2); |
3257 | *tmps++ = (U8)UTF8_EIGHT_BIT_HI(value); | |
3258 | *tmps++ = (U8)UTF8_EIGHT_BIT_LO(value); | |
3259 | *tmps = '\0'; | |
3260 | SvUTF8_on(TARG); | |
3261 | } | |
3262 | } | |
463ee0b2 LW |
3263 | XPUSHs(TARG); |
3264 | RETURN; | |
3265 | } | |
3266 | ||
79072805 LW |
3267 | PP(pp_crypt) |
3268 | { | |
79072805 | 3269 | #ifdef HAS_CRYPT |
97aff369 | 3270 | dVAR; dSP; dTARGET; |
5f74f29c | 3271 | dPOPTOPssrl; |
85c16d83 | 3272 | STRLEN len; |
10516c54 | 3273 | const char *tmps = SvPV_const(left, len); |
2bc69dc4 | 3274 | |
85c16d83 | 3275 | if (DO_UTF8(left)) { |
2bc69dc4 | 3276 | /* If Unicode, try to downgrade. |
f2791508 JH |
3277 | * If not possible, croak. |
3278 | * Yes, we made this up. */ | |
1b6737cc | 3279 | SV* const tsv = sv_2mortal(newSVsv(left)); |
2bc69dc4 | 3280 | |
f2791508 | 3281 | SvUTF8_on(tsv); |
2bc69dc4 | 3282 | sv_utf8_downgrade(tsv, FALSE); |
349d4f2f | 3283 | tmps = SvPV_const(tsv, len); |
85c16d83 | 3284 | } |
05404ffe JH |
3285 | # ifdef USE_ITHREADS |
3286 | # ifdef HAS_CRYPT_R | |
3287 | if (!PL_reentrant_buffer->_crypt_struct_buffer) { | |
3288 | /* This should be threadsafe because in ithreads there is only | |
3289 | * one thread per interpreter. If this would not be true, | |
3290 | * we would need a mutex to protect this malloc. */ | |
3291 | PL_reentrant_buffer->_crypt_struct_buffer = | |
3292 | (struct crypt_data *)safemalloc(sizeof(struct crypt_data)); | |
3293 | #if defined(__GLIBC__) || defined(__EMX__) | |
3294 | if (PL_reentrant_buffer->_crypt_struct_buffer) { | |
3295 | PL_reentrant_buffer->_crypt_struct_buffer->initialized = 0; | |
3296 | /* work around glibc-2.2.5 bug */ | |
3297 | PL_reentrant_buffer->_crypt_struct_buffer->current_saltbits = 0; | |
3298 | } | |
05404ffe | 3299 | #endif |
6ab58e4d | 3300 | } |
05404ffe JH |
3301 | # endif /* HAS_CRYPT_R */ |
3302 | # endif /* USE_ITHREADS */ | |
5f74f29c | 3303 | # ifdef FCRYPT |
83003860 | 3304 | sv_setpv(TARG, fcrypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3305 | # else |
83003860 | 3306 | sv_setpv(TARG, PerlProc_crypt(tmps, SvPV_nolen_const(right))); |
5f74f29c | 3307 | # endif |
4808266b JH |
3308 | SETs(TARG); |
3309 | RETURN; | |
79072805 | 3310 | #else |
b13b2135 | 3311 | DIE(aTHX_ |
79072805 LW |
3312 | "The crypt() function is unimplemented due to excessive paranoia."); |
3313 | #endif | |
79072805 LW |
3314 | } |
3315 | ||
3316 | PP(pp_ucfirst) | |
3317 | { | |
97aff369 | 3318 | dVAR; |
39644a26 | 3319 | dSP; |
79072805 | 3320 | SV *sv = TOPs; |
83003860 | 3321 | const U8 *s; |
a0ed51b3 | 3322 | STRLEN slen; |
12e9c124 | 3323 | const int op_type = PL_op->op_type; |
a0ed51b3 | 3324 | |
d104a74c | 3325 | SvGETMAGIC(sv); |
3a2263fe | 3326 | if (DO_UTF8(sv) && |
83003860 | 3327 | (s = (const U8*)SvPV_nomg_const(sv, slen)) && slen && |
3a2263fe | 3328 | UTF8_IS_START(*s)) { |
89ebb4a3 | 3329 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
44bc797b JH |
3330 | STRLEN ulen; |
3331 | STRLEN tculen; | |
a0ed51b3 | 3332 | |
44bc797b | 3333 | utf8_to_uvchr(s, &ulen); |
12e9c124 NC |
3334 | if (op_type == OP_UCFIRST) { |
3335 | toTITLE_utf8(s, tmpbuf, &tculen); | |
3336 | } else { | |
3337 | toLOWER_utf8(s, tmpbuf, &tculen); | |
3338 | } | |
44bc797b | 3339 | |
6f9b16a7 | 3340 | if (!SvPADTMP(sv) || SvREADONLY(sv) || ulen != tculen) { |
a0ed51b3 | 3341 | dTARGET; |
3a2263fe RGS |
3342 | /* slen is the byte length of the whole SV. |
3343 | * ulen is the byte length of the original Unicode character | |
3344 | * stored as UTF-8 at s. | |
12e9c124 NC |
3345 | * tculen is the byte length of the freshly titlecased (or |
3346 | * lowercased) Unicode character stored as UTF-8 at tmpbuf. | |
3347 | * We first set the result to be the titlecased (/lowercased) | |
3348 | * character, and then append the rest of the SV data. */ | |
44bc797b | 3349 | sv_setpvn(TARG, (char*)tmpbuf, tculen); |
3a2263fe RGS |
3350 | if (slen > ulen) |
3351 | sv_catpvn(TARG, (char*)(s + ulen), slen - ulen); | |
7e2040f0 | 3352 | SvUTF8_on(TARG); |
6818a357 TS |
3353 | sv = TARG; |
3354 | SETs(sv); | |
a0ed51b3 LW |
3355 | } |
3356 | else { | |
d104a74c | 3357 | s = (U8*)SvPV_force_nomg(sv, slen); |
44bc797b | 3358 | Copy(tmpbuf, s, tculen, U8); |
a0ed51b3 | 3359 | } |
a0ed51b3 | 3360 | } |
626727d5 | 3361 | else { |
83003860 | 3362 | U8 *s1; |
014822e4 | 3363 | if (!SvPADTMP(sv) || SvREADONLY(sv)) { |
31351b04 | 3364 | dTARGET; |
7e2040f0 | 3365 | SvUTF8_off(TARG); /* decontaminate */ |
d104a74c | 3366 | sv_setsv_nomg(TARG, sv); |
31351b04 JS |
3367 | sv = TARG; |
3368 | SETs(sv); | |
3369 | } | |
83003860 NC |
3370 | s1 = (U8*)SvPV_force_nomg(sv, slen); |
3371 | if (*s1) { | |
2de3dbcc | 3372 | if (IN_LOCALE_RUNTIME) { |
31351b04 JS |
3373 | TAINT; |
3374 | SvTAINTED_on(sv); | |
12e9c124 NC |
3375 | *s1 = (op_type == OP_UCFIRST) |
3376 | ? toUPPER_LC(*s1) : toLOWER_LC(*s1); | |
31351b04 JS |
3377 | } |
3378 | else | |
12e9c124 | 3379 | *s1 = (op_type == OP_UCFIRST) ? toUPPER(*s1) : toLOWER(*s1); |
bbce6d69 | 3380 | } |
bbce6d69 | 3381 | } |
d104a74c | 3382 | SvSETMAGIC(sv); |
79072805 LW |
3383 | RETURN; |
3384 | } | |
3385 | ||
3386 | PP(pp_uc) | |
3387 | { | |
97aff369 | 3388 | dVAR; |
39644a26 | 3389 | dSP; |
79072805 | 3390 | SV *sv = TOPs; |
463ee0b2 | 3391 | STRLEN len; |
79072805 | 3392 | |
d104a74c | 3393 | SvGETMAGIC(sv); |
7e2040f0 | 3394 | if (DO_UTF8(sv)) { |
a0ed51b3 | 3395 | dTARGET; |
ba210ebe | 3396 | STRLEN ulen; |
a0ed51b3 | 3397 | register U8 *d; |
10516c54 NC |
3398 | const U8 *s; |
3399 | const U8 *send; | |
89ebb4a3 | 3400 | U8 tmpbuf[UTF8_MAXBYTES+1]; |
a0ed51b3 | 3401 | |
10516c54 | 3402 | s = (const U8*)SvPV_nomg_const(sv,len); |
a5a20234 | 3403 | if (!len) { |
7e2040f0 | 3404 | SvUTF8_off(TARG); /* decontaminate */ |
a5a20234 | 3405 | sv_setpvn(TARG, "", 0); |
6818a357 TS |
3406 | sv = TARG; |
3407 | SETs(sv); | |
a0ed51b3 LW |
3408 | } |
3409 | else { | |
128c9517 JH |
3410 | STRLEN min = len + 1; |
3411 | ||
862a34c6 | 3412 | SvUPGRADE(TARG, SVt_PV); |
128c9517 | 3413 | SvGROW(TARG, min); |
31351b04 JS |
3414 | (void)SvPOK_only(TARG); |
3415 | d = (U8*)SvPVX(TARG); | |
3416 | send = s + len; | |
a2a2844f | 3417 | while (s < send) { |
89ebb4a3 JH |
3418 | STRLEN u = UTF8SKIP(s); |
3419 | ||
6fdb5f96 | 3420 | toUPPER_utf8(s, tmpbuf, &ulen); |
128c9517 JH |
3421 | if (ulen > u && (SvLEN(TARG) < (min += ulen - u))) { |
3422 | /* If the eventually required minimum size outgrows | |
3423 | * the available space, we need to grow. */ | |
0bd48802 | 3424 | const UV o = d - (U8*)SvPVX_const(TARG); |
89ebb4a3 JH |
3425 | |
3426 | /* If someone uppercases one million U+03B0s we | |
3427 | * SvGROW() one million times. Or we could try | |
32c480af JH |
3428 | * guessing how much to allocate without allocating |
3429 | * too much. Such is life. */ | |
128c9517 | 3430 | SvGROW(TARG, min); |
89ebb4a3 JH |
3431 | d = (U8*)SvPVX(TARG) + o; |
3432 | } | |
a2a2844f JH |
3433 | Copy(tmpbuf, d, ulen, U8); |
3434 | d += ulen; | |
89ebb4a3 | 3435 | s += u; |
a0ed51b3 | 3436 | } |
31351b04 | 3437 | *d = '\0'; |
7e2040f0 | 3438 | SvUTF8_on(TARG); |
349d4f2f | 3439 | SvCUR_set(TARG, d - (U8*)SvPVX_const(TARG)); |
6818a357 TS |
3440 | sv = TARG; |
3441 | SETs(sv); | |
a0ed51b3 | 3442 | } |
a0ed51b3 | 3443 | } |
626727d5 | 3444 | else { |
10516c54 | 3445 | U8 *s; |
014822e4 | 3446 | if (!SvPADTMP(sv) || SvREADONLY(sv)) { |
31351b04 | 3447 | dTARGET; |
7e2040f0 | 3448 | SvUTF8_off(TARG); /* decontaminate */ |
d104a74c | 3449 | sv_setsv_nomg(TARG, sv); |
31351b04 JS |
3450 | sv = TARG; |
3451 | SETs(sv); | |
3452 | } | |
d104a74c | 3453 | s = (U8*)SvPV_force_nomg(sv, len); |
31351b04 | 3454 | if (len) { |
0d46e09a | 3455 | register const U8 *send = s + len; |
31351b04 | 3456 | |
2de3dbcc | 3457 | if (IN_LOCALE_RUNTIME) { |
31351b04 JS |
3458 | TAINT; |
3459 | SvTAINTED_on(sv); | |
3460 | for (; s < send; s++) | |
3461 | *s = toUPPER_LC(*s); | |
3462 | } | |
3463 | else { | |
3464 | for (; s < send; s++) | |
3465 | *s = toUPPER(*s); | |
3466 | } | |
bbce6d69 | 3467 | } |
79072805 | 3468 | } |
d104a74c | 3469 | SvSETMAGIC(sv); |
79072805 LW |
3470 | RETURN; |
3471 | } | |
3472 | ||
3473 | PP(pp_lc) | |
3474 | { | |
97aff369 | 3475 | dVAR; |
39644a26 | 3476 | dSP; |
79072805 | 3477 | SV *sv = TOPs; |
463ee0b2 | 3478 | STRLEN len; |
79072805 | 3479 | |
d104a74c | 3480 | SvGETMAGIC(sv); |
7e2040f0 | 3481 | if (DO_UTF8(sv)) { |
a0ed51b3 | 3482 | dTARGET; |
10516c54 | 3483 | const U8 *s; |
ba210ebe | 3484 | STRLEN ulen; |
a0ed51b3 | 3485 | register U8 *d; |
10516c54 | 3486 | const U8 *send; |
89ebb4a3 | 3487 | U8 tmpbuf[UTF8_MAXBYTES_CASE+1]; |
a0ed51b3 | 3488 | |
10516c54 | 3489 | s = (const U8*)SvPV_nomg_const(sv,len); |
a5a20234 | 3490 | if (!len) { |
7e2040f0 | 3491 | SvUTF8_off(TARG); /* decontaminate */ |
a5a20234 | 3492 | sv_setpvn(TARG, "", 0); |
6818a357 TS |
3493 | sv = TARG; |
3494 | SETs(sv); | |
a0ed51b3 LW |
3495 | } |
3496 | else { | |
128c9517 JH |
3497 | STRLEN min = len + 1; |
3498 | ||
862a34c6 | 3499 | SvUPGRADE(TARG, SVt_PV); |
128c9517 | 3500 | SvGROW(TARG, min); |
31351b04 JS |
3501 | (void)SvPOK_only(TARG); |
3502 | d = (U8*)SvPVX(TARG); | |
3503 | send = s + len; | |
a2a2844f | 3504 | while (s < send) { |
1b6737cc AL |
3505 | const STRLEN u = UTF8SKIP(s); |
3506 | const UV uv = toLOWER_utf8(s, tmpbuf, &ulen); | |
89ebb4a3 JH |
3507 | |
3508 | #define GREEK_CAPITAL_LETTER_SIGMA 0x03A3 /* Unicode U+03A3 */ | |
6fdb5f96 | 3509 | if (uv == GREEK_CAPITAL_LETTER_SIGMA) { |
bb263b4e | 3510 | /*EMPTY*/ |
6fdb5f96 JH |
3511 | /* |
3512 | * Now if the sigma is NOT followed by | |
3513 | * /$ignorable_sequence$cased_letter/; | |
3514 | * and it IS preceded by | |
3515 | * /$cased_letter$ignorable_sequence/; | |
3516 | * where $ignorable_sequence is | |
3517 | * [\x{2010}\x{AD}\p{Mn}]* | |
3518 | * and $cased_letter is | |
3519 | * [\p{Ll}\p{Lo}\p{Lt}] | |
3520 | * then it should be mapped to 0x03C2, | |
3521 | * (GREEK SMALL LETTER FINAL SIGMA), | |
3522 | * instead of staying 0x03A3. | |
89ebb4a3 JH |
3523 | * "should be": in other words, |
3524 | * this is not implemented yet. | |
3525 | * See lib/unicore/SpecialCasing.txt. | |
6fdb5f96 JH |
3526 | */ |
3527 | } | |
128c9517 JH |
3528 | if (ulen > u && (SvLEN(TARG) < (min += ulen - u))) { |
3529 | /* If the eventually required minimum size outgrows | |
3530 | * the available space, we need to grow. */ | |
0bd48802 | 3531 | const UV o = d - (U8*)SvPVX_const(TARG); |
89ebb4a3 JH |
3532 | |
3533 | /* If someone lowercases one million U+0130s we | |
3534 | * SvGROW() one million times. Or we could try | |
32c480af JH |
3535 | * guessing how much to allocate without allocating. |
3536 | * too much. Such is life. */ | |
128c9517 | 3537 | SvGROW(TARG, min); |
89ebb4a3 JH |
3538 | d = (U8*)SvPVX(TARG) + o; |
3539 | } | |
a2a2844f JH |
3540 | Copy(tmpbuf, d, ulen, U8); |
3541 | d += ulen; | |
89ebb4a3 | 3542 | s += u; |
a0ed51b3 | 3543 | } |
31351b04 | 3544 | *d = '\0'; |
7e2040f0 | 3545 | SvUTF8_on(TARG); |
349d4f2f | 3546 | SvCUR_set(TARG, d - (U8*)SvPVX_const(TARG)); |
6818a357 TS |
3547 | sv = TARG; |
3548 | SETs(sv); | |
a0ed51b3 | 3549 | } |
79072805 | 3550 | } |
626727d5 | 3551 | else { |
10516c54 | 3552 | U8 *s; |
014822e4 | 3553 | if (!SvPADTMP(sv) || SvREADONLY(sv)) { |
31351b04 | 3554 | dTARGET; |
7e2040f0 | 3555 | SvUTF8_off(TARG); /* decontaminate */ |
d104a74c | 3556 | sv_setsv_nomg(TARG, sv); |
31351b04 JS |
3557 | sv = TARG; |
3558 | SETs(sv); | |
a0ed51b3 | 3559 | } |
bbce6d69 | 3560 | |
d104a74c | 3561 | s = (U8*)SvPV_force_nomg(sv, len); |
31351b04 | 3562 | if (len) { |
1b6737cc | 3563 | register const U8 * const send = s + len; |
bbce6d69 | 3564 | |
2de3dbcc | 3565 | if (IN_LOCALE_RUNTIME) { |
31351b04 JS |
3566 | TAINT; |
3567 | SvTAINTED_on(sv); | |
3568 | for (; s < send; s++) | |
3569 | *s = toLOWER_LC(*s); | |
3570 | } | |
3571 | else { | |
3572 | for (; s < send; s++) | |
3573 | *s = toLOWER(*s); | |
3574 | } | |
bbce6d69 | 3575 | } |
79072805 | 3576 | } |
d104a74c | 3577 | SvSETMAGIC(sv); |
79072805 LW |
3578 | RETURN; |
3579 | } | |
3580 | ||
a0d0e21e | 3581 | PP(pp_quotemeta) |
79072805 | 3582 | { |
97aff369 | 3583 | dVAR; dSP; dTARGET; |
1b6737cc | 3584 | SV * const sv = TOPs; |
a0d0e21e | 3585 | STRLEN len; |
0d46e09a | 3586 | register const char *s = SvPV_const(sv,len); |
79072805 | 3587 | |
7e2040f0 | 3588 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 3589 | if (len) { |
1b6737cc | 3590 | register char *d; |
862a34c6 | 3591 | SvUPGRADE(TARG, SVt_PV); |
c07a80fd | 3592 | SvGROW(TARG, (len * 2) + 1); |
a0d0e21e | 3593 | d = SvPVX(TARG); |
7e2040f0 | 3594 | if (DO_UTF8(sv)) { |
0dd2cdef | 3595 | while (len) { |
fd400ab9 | 3596 | if (UTF8_IS_CONTINUED(*s)) { |
0dd2cdef LW |
3597 | STRLEN ulen = UTF8SKIP(s); |
3598 | if (ulen > len) | |
3599 | ulen = len; | |
3600 | len -= ulen; | |
3601 | while (ulen--) | |
3602 | *d++ = *s++; | |
3603 | } | |
3604 | else { | |
3605 | if (!isALNUM(*s)) | |
3606 | *d++ = '\\'; | |
3607 | *d++ = *s++; | |
3608 | len--; | |
3609 | } | |
3610 | } | |
7e2040f0 | 3611 | SvUTF8_on(TARG); |
0dd2cdef LW |
3612 | } |
3613 | else { | |
3614 | while (len--) { | |
3615 | if (!isALNUM(*s)) | |
3616 | *d++ = '\\'; | |
3617 | *d++ = *s++; | |
3618 | } | |
79072805 | 3619 | } |
a0d0e21e | 3620 | *d = '\0'; |
349d4f2f | 3621 | SvCUR_set(TARG, d - SvPVX_const(TARG)); |
3aa33fe5 | 3622 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 3623 | } |
a0d0e21e LW |
3624 | else |
3625 | sv_setpvn(TARG, s, len); | |
3626 | SETs(TARG); | |
31351b04 JS |
3627 | if (SvSMAGICAL(TARG)) |
3628 | mg_set(TARG); | |
79072805 LW |
3629 | RETURN; |
3630 | } | |
3631 | ||
a0d0e21e | 3632 | /* Arrays. */ |
79072805 | 3633 | |
a0d0e21e | 3634 | PP(pp_aslice) |
79072805 | 3635 | { |
97aff369 | 3636 | dVAR; dSP; dMARK; dORIGMARK; |
1b6737cc AL |
3637 | register AV* const av = (AV*)POPs; |
3638 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
79072805 | 3639 | |
a0d0e21e | 3640 | if (SvTYPE(av) == SVt_PVAV) { |
1b6737cc | 3641 | const I32 arybase = PL_curcop->cop_arybase; |
533c011a | 3642 | if (lval && PL_op->op_private & OPpLVAL_INTRO) { |
1b6737cc | 3643 | register SV **svp; |
748a9306 | 3644 | I32 max = -1; |
924508f0 | 3645 | for (svp = MARK + 1; svp <= SP; svp++) { |
1b6737cc | 3646 | const I32 elem = SvIVx(*svp); |
748a9306 LW |
3647 | if (elem > max) |
3648 | max = elem; | |
3649 | } | |
3650 | if (max > AvMAX(av)) | |
3651 | av_extend(av, max); | |
3652 | } | |
a0d0e21e | 3653 | while (++MARK <= SP) { |
1b6737cc AL |
3654 | register SV **svp; |
3655 | I32 elem = SvIVx(*MARK); | |
a0d0e21e | 3656 | |
748a9306 LW |
3657 | if (elem > 0) |
3658 | elem -= arybase; | |
a0d0e21e LW |
3659 | svp = av_fetch(av, elem, lval); |
3660 | if (lval) { | |
3280af22 | 3661 | if (!svp || *svp == &PL_sv_undef) |
cea2e8a9 | 3662 | DIE(aTHX_ PL_no_aelem, elem); |
533c011a | 3663 | if (PL_op->op_private & OPpLVAL_INTRO) |
161b7d16 | 3664 | save_aelem(av, elem, svp); |
79072805 | 3665 | } |
3280af22 | 3666 | *MARK = svp ? *svp : &PL_sv_undef; |
79072805 LW |
3667 | } |
3668 | } | |
748a9306 | 3669 | if (GIMME != G_ARRAY) { |
a0d0e21e | 3670 | MARK = ORIGMARK; |
04ab2c87 | 3671 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e LW |
3672 | SP = MARK; |
3673 | } | |
79072805 LW |
3674 | RETURN; |
3675 | } | |
3676 | ||
3677 | /* Associative arrays. */ | |
3678 | ||
3679 | PP(pp_each) | |
3680 | { | |
97aff369 | 3681 | dVAR; |
39644a26 | 3682 | dSP; |
1b6737cc | 3683 | HV * const hash = (HV*)POPs; |
c07a80fd | 3684 | HE *entry; |
f54cb97a | 3685 | const I32 gimme = GIMME_V; |
8ec5e241 | 3686 | |
c07a80fd | 3687 | PUTBACK; |
c750a3ec | 3688 | /* might clobber stack_sp */ |
6d822dc4 | 3689 | entry = hv_iternext(hash); |
c07a80fd | 3690 | SPAGAIN; |
79072805 | 3691 | |
79072805 LW |
3692 | EXTEND(SP, 2); |
3693 | if (entry) { | |
1b6737cc | 3694 | SV* const sv = hv_iterkeysv(entry); |
574c8022 | 3695 | PUSHs(sv); /* won't clobber stack_sp */ |
54310121 | 3696 | if (gimme == G_ARRAY) { |
59af0135 | 3697 | SV *val; |
c07a80fd | 3698 | PUTBACK; |
c750a3ec | 3699 | /* might clobber stack_sp */ |
6d822dc4 | 3700 | val = hv_iterval(hash, entry); |
c07a80fd | 3701 | SPAGAIN; |
59af0135 | 3702 | PUSHs(val); |
79072805 | 3703 | } |
79072805 | 3704 | } |
54310121 | 3705 | else if (gimme == G_SCALAR) |
79072805 LW |
3706 | RETPUSHUNDEF; |
3707 | ||
3708 | RETURN; | |
3709 | } | |
3710 | ||
79072805 LW |
3711 | PP(pp_delete) |
3712 | { | |
97aff369 | 3713 | dVAR; |
39644a26 | 3714 | dSP; |
f54cb97a AL |
3715 | const I32 gimme = GIMME_V; |
3716 | const I32 discard = (gimme == G_VOID) ? G_DISCARD : 0; | |
5f05dabc | 3717 | |
533c011a | 3718 | if (PL_op->op_private & OPpSLICE) { |
5f05dabc | 3719 | dMARK; dORIGMARK; |
1b6737cc AL |
3720 | HV * const hv = (HV*)POPs; |
3721 | const U32 hvtype = SvTYPE(hv); | |
01020589 GS |
3722 | if (hvtype == SVt_PVHV) { /* hash element */ |
3723 | while (++MARK <= SP) { | |
1b6737cc | 3724 | SV * const sv = hv_delete_ent(hv, *MARK, discard, 0); |
01020589 GS |
3725 | *MARK = sv ? sv : &PL_sv_undef; |
3726 | } | |
5f05dabc | 3727 | } |
6d822dc4 MS |
3728 | else if (hvtype == SVt_PVAV) { /* array element */ |
3729 | if (PL_op->op_flags & OPf_SPECIAL) { | |
3730 | while (++MARK <= SP) { | |
1b6737cc | 3731 | SV * const sv = av_delete((AV*)hv, SvIV(*MARK), discard); |
6d822dc4 MS |
3732 | *MARK = sv ? sv : &PL_sv_undef; |
3733 | } | |
3734 | } | |
01020589 GS |
3735 | } |
3736 | else | |
3737 | DIE(aTHX_ "Not a HASH reference"); | |
54310121 | 3738 | if (discard) |
3739 | SP = ORIGMARK; | |
3740 | else if (gimme == G_SCALAR) { | |
5f05dabc | 3741 | MARK = ORIGMARK; |
9111c9c0 DM |
3742 | if (SP > MARK) |
3743 | *++MARK = *SP; | |
3744 | else | |
3745 | *++MARK = &PL_sv_undef; | |
5f05dabc | 3746 | SP = MARK; |
3747 | } | |
3748 | } | |
3749 | else { | |
3750 | SV *keysv = POPs; | |
1b6737cc AL |
3751 | HV * const hv = (HV*)POPs; |
3752 | SV *sv; | |
97fcbf96 MB |
3753 | if (SvTYPE(hv) == SVt_PVHV) |
3754 | sv = hv_delete_ent(hv, keysv, discard, 0); | |
01020589 GS |
3755 | else if (SvTYPE(hv) == SVt_PVAV) { |
3756 | if (PL_op->op_flags & OPf_SPECIAL) | |
3757 | sv = av_delete((AV*)hv, SvIV(keysv), discard); | |
af288a60 HS |
3758 | else |
3759 | DIE(aTHX_ "panic: avhv_delete no longer supported"); | |
01020589 | 3760 | } |
97fcbf96 | 3761 | else |
cea2e8a9 | 3762 | DIE(aTHX_ "Not a HASH reference"); |
5f05dabc | 3763 | if (!sv) |
3280af22 | 3764 | sv = &PL_sv_undef; |
54310121 | 3765 | if (!discard) |
3766 | PUSHs(sv); | |
79072805 | 3767 | } |
79072805 LW |
3768 | RETURN; |
3769 | } | |
3770 | ||
a0d0e21e | 3771 | PP(pp_exists) |
79072805 | 3772 | { |
97aff369 | 3773 | dVAR; |
39644a26 | 3774 | dSP; |
afebc493 GS |
3775 | SV *tmpsv; |
3776 | HV *hv; | |
3777 | ||
3778 | if (PL_op->op_private & OPpEXISTS_SUB) { | |
3779 | GV *gv; | |
0bd48802 | 3780 | SV * const sv = POPs; |
f2c0649b | 3781 | CV * const cv = sv_2cv(sv, &hv, &gv, 0); |
afebc493 GS |
3782 | if (cv) |
3783 | RETPUSHYES; | |
3784 | if (gv && isGV(gv) && GvCV(gv) && !GvCVGEN(gv)) | |
3785 | RETPUSHYES; | |
3786 | RETPUSHNO; | |
3787 | } | |
3788 | tmpsv = POPs; | |
3789 | hv = (HV*)POPs; | |
c750a3ec | 3790 | if (SvTYPE(hv) == SVt_PVHV) { |
ae77835f | 3791 | if (hv_exists_ent(hv, tmpsv, 0)) |
c750a3ec | 3792 | RETPUSHYES; |
ef54e1a4 JH |
3793 | } |
3794 | else if (SvTYPE(hv) == SVt_PVAV) { | |
01020589 GS |
3795 | if (PL_op->op_flags & OPf_SPECIAL) { /* array element */ |
3796 | if (av_exists((AV*)hv, SvIV(tmpsv))) | |
3797 | RETPUSHYES; | |
3798 | } | |
ef54e1a4 JH |
3799 | } |
3800 | else { | |
cea2e8a9 | 3801 | DIE(aTHX_ "Not a HASH reference"); |
a0d0e21e | 3802 | } |
a0d0e21e LW |
3803 | RETPUSHNO; |
3804 | } | |
79072805 | 3805 | |
a0d0e21e LW |
3806 | PP(pp_hslice) |
3807 | { | |
97aff369 | 3808 | dVAR; dSP; dMARK; dORIGMARK; |
1b6737cc AL |
3809 | register HV * const hv = (HV*)POPs; |
3810 | register const I32 lval = (PL_op->op_flags & OPf_MOD || LVRET); | |
3811 | const bool localizing = PL_op->op_private & OPpLVAL_INTRO; | |
eb85dfd3 | 3812 | bool other_magic = FALSE; |
79072805 | 3813 | |
eb85dfd3 DM |
3814 | if (localizing) { |
3815 | MAGIC *mg; | |
3816 | HV *stash; | |
3817 | ||
3818 | other_magic = mg_find((SV*)hv, PERL_MAGIC_env) || | |
3819 | ((mg = mg_find((SV*)hv, PERL_MAGIC_tied)) | |
3820 | /* Try to preserve the existenceness of a tied hash | |
3821 | * element by using EXISTS and DELETE if possible. | |
3822 | * Fallback to FETCH and STORE otherwise */ | |
3823 | && (stash = SvSTASH(SvRV(SvTIED_obj((SV*)hv, mg)))) | |
3824 | && gv_fetchmethod_autoload(stash, "EXISTS", TRUE) | |
3825 | && gv_fetchmethod_autoload(stash, "DELETE", TRUE)); | |
3826 | } | |
3827 | ||
6d822dc4 | 3828 | while (++MARK <= SP) { |
1b6737cc | 3829 | SV * const keysv = *MARK; |
6d822dc4 MS |
3830 | SV **svp; |
3831 | HE *he; | |
3832 | bool preeminent = FALSE; | |
0ebe0038 | 3833 | |
6d822dc4 MS |
3834 | if (localizing) { |
3835 | preeminent = SvRMAGICAL(hv) && !other_magic ? 1 : | |
3836 | hv_exists_ent(hv, keysv, 0); | |
3837 | } | |
eb85dfd3 | 3838 | |
6d822dc4 MS |
3839 | he = hv_fetch_ent(hv, keysv, lval, 0); |
3840 | svp = he ? &HeVAL(he) : 0; | |
eb85dfd3 | 3841 | |
6d822dc4 MS |
3842 | if (lval) { |
3843 | if (!svp || *svp == &PL_sv_undef) { | |
ce5030a2 | 3844 | DIE(aTHX_ PL_no_helem_sv, keysv); |
6d822dc4 MS |
3845 | } |
3846 | if (localizing) { | |
3847 | if (preeminent) | |
3848 | save_helem(hv, keysv, svp); | |
3849 | else { | |
3850 | STRLEN keylen; | |
5c144d81 | 3851 | const char *key = SvPV_const(keysv, keylen); |
6d822dc4 | 3852 | SAVEDELETE(hv, savepvn(key,keylen), keylen); |
1f5346dc | 3853 | } |
6d822dc4 MS |
3854 | } |
3855 | } | |
3856 | *MARK = svp ? *svp : &PL_sv_undef; | |
79072805 | 3857 | } |
a0d0e21e LW |
3858 | if (GIMME != G_ARRAY) { |
3859 | MARK = ORIGMARK; | |
04ab2c87 | 3860 | *++MARK = SP > ORIGMARK ? *SP : &PL_sv_undef; |
a0d0e21e | 3861 | SP = MARK; |
79072805 | 3862 | } |
a0d0e21e LW |
3863 | RETURN; |
3864 | } | |
3865 | ||
3866 | /* List operators. */ | |
3867 | ||
3868 | PP(pp_list) | |
3869 | { | |
97aff369 | 3870 | dVAR; dSP; dMARK; |
a0d0e21e LW |
3871 | if (GIMME != G_ARRAY) { |
3872 | if (++MARK <= SP) | |
3873 | *MARK = *SP; /* unwanted list, return last item */ | |
8990e307 | 3874 | else |
3280af22 | 3875 | *MARK = &PL_sv_undef; |
a0d0e21e | 3876 | SP = MARK; |
79072805 | 3877 | } |
a0d0e21e | 3878 | RETURN; |
79072805 LW |
3879 | } |
3880 | ||
a0d0e21e | 3881 | PP(pp_lslice) |
79072805 | 3882 | { |
97aff369 | 3883 | dVAR; |
39644a26 | 3884 | dSP; |
1b6737cc AL |
3885 | SV ** const lastrelem = PL_stack_sp; |
3886 | SV ** const lastlelem = PL_stack_base + POPMARK; | |
3887 | SV ** const firstlelem = PL_stack_base + POPMARK + 1; | |
3888 | register SV ** const firstrelem = lastlelem + 1; | |
3889 | const I32 arybase = PL_curcop->cop_arybase; | |
3890 | I32 is_something_there = PL_op->op_flags & OPf_MOD; | |
3891 | ||
3892 | register const I32 max = lastrelem - lastlelem; | |
a0d0e21e | 3893 | register SV **lelem; |
a0d0e21e LW |
3894 | |
3895 | if (GIMME != G_ARRAY) { | |
1b6737cc | 3896 | I32 ix = SvIVx(*lastlelem); |
748a9306 LW |
3897 | if (ix < 0) |
3898 | ix += max; | |
3899 | else | |
3900 | ix -= arybase; | |
a0d0e21e | 3901 | if (ix < 0 || ix >= max) |
3280af22 | 3902 | *firstlelem = &PL_sv_undef; |
a0d0e21e LW |
3903 | else |
3904 | *firstlelem = firstrelem[ix]; | |
3905 | SP = firstlelem; | |
3906 | RETURN; | |
3907 | } | |
3908 | ||
3909 | if (max == 0) { | |
3910 | SP = firstlelem - 1; | |
3911 | RETURN; | |
3912 | } | |
3913 | ||
3914 | for (lelem = firstlelem; lelem <= lastlelem; lelem++) { | |
1b6737cc | 3915 | I32 ix = SvIVx(*lelem); |
c73bf8e3 | 3916 | if (ix < 0) |
a0d0e21e | 3917 | ix += max; |
b13b2135 | 3918 | else |
748a9306 | 3919 | ix -= arybase; |
c73bf8e3 HS |
3920 | if (ix < 0 || ix >= max) |
3921 | *lelem = &PL_sv_undef; | |
3922 | else { | |
3923 | is_something_there = TRUE; | |
3924 | if (!(*lelem = firstrelem[ix])) | |
3280af22 | 3925 | *lelem = &PL_sv_undef; |
748a9306 | 3926 | } |
79072805 | 3927 | } |
4633a7c4 LW |
3928 | if (is_something_there) |
3929 | SP = lastlelem; | |
3930 | else | |
3931 | SP = firstlelem - 1; | |
79072805 LW |
3932 | RETURN; |
3933 | } | |
3934 | ||
a0d0e21e LW |
3935 | PP(pp_anonlist) |
3936 | { | |
97aff369 | 3937 | dVAR; dSP; dMARK; dORIGMARK; |
1b6737cc AL |
3938 | const I32 items = SP - MARK; |
3939 | SV * const av = sv_2mortal((SV*)av_make(items, MARK+1)); | |
44a8e56a | 3940 | SP = ORIGMARK; /* av_make() might realloc stack_sp */ |
3941 | XPUSHs(av); | |
a0d0e21e LW |
3942 | RETURN; |
3943 | } | |
3944 | ||
3945 | PP(pp_anonhash) | |
79072805 | 3946 | { |
97aff369 | 3947 | dVAR; dSP; dMARK; dORIGMARK; |
1b6737cc | 3948 | HV* const hv = (HV*)sv_2mortal((SV*)newHV()); |
a0d0e21e LW |
3949 | |
3950 | while (MARK < SP) { | |
1b6737cc | 3951 | SV * const key = *++MARK; |
561b68a9 | 3952 | SV * const val = newSV(0); |
a0d0e21e LW |
3953 | if (MARK < SP) |
3954 | sv_setsv(val, *++MARK); | |
e476b1b5 | 3955 | else if (ckWARN(WARN_MISC)) |
9014280d | 3956 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Odd number of elements in anonymous hash"); |
f12c7020 | 3957 | (void)hv_store_ent(hv,key,val,0); |
79072805 | 3958 | } |
a0d0e21e LW |
3959 | SP = ORIGMARK; |
3960 | XPUSHs((SV*)hv); | |
79072805 LW |
3961 | RETURN; |
3962 | } | |
3963 | ||
a0d0e21e | 3964 | PP(pp_splice) |
79072805 | 3965 | { |
27da23d5 | 3966 | dVAR; dSP; dMARK; dORIGMARK; |
a0d0e21e LW |
3967 | register AV *ary = (AV*)*++MARK; |
3968 | register SV **src; | |
3969 | register SV **dst; | |
3970 | register I32 i; | |
3971 | register I32 offset; | |
3972 | register I32 length; | |
3973 | I32 newlen; | |
3974 | I32 after; | |
3975 | I32 diff; | |
cbbf8932 | 3976 | SV **tmparyval = NULL; |
1b6737cc | 3977 | const MAGIC * const mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied); |
93965878 | 3978 | |
1b6737cc | 3979 | if (mg) { |
33c27489 | 3980 | *MARK-- = SvTIED_obj((SV*)ary, mg); |
93965878 | 3981 | PUSHMARK(MARK); |
8ec5e241 | 3982 | PUTBACK; |
a60c0954 | 3983 | ENTER; |
864dbfa3 | 3984 | call_method("SPLICE",GIMME_V); |
a60c0954 | 3985 | LEAVE; |
93965878 NIS |
3986 | SPAGAIN; |
3987 | RETURN; | |
3988 | } | |
79072805 | 3989 | |
a0d0e21e | 3990 | SP++; |
79072805 | 3991 | |
a0d0e21e | 3992 | if (++MARK < SP) { |
84902520 | 3993 | offset = i = SvIVx(*MARK); |
a0d0e21e | 3994 | if (offset < 0) |
93965878 | 3995 | offset += AvFILLp(ary) + 1; |
a0d0e21e | 3996 | else |
3280af22 | 3997 | offset -= PL_curcop->cop_arybase; |
84902520 | 3998 | if (offset < 0) |
cea2e8a9 | 3999 | DIE(aTHX_ PL_no_aelem, i); |
a0d0e21e LW |
4000 | if (++MARK < SP) { |
4001 | length = SvIVx(*MARK++); | |
48cdf507 GA |
4002 | if (length < 0) { |
4003 | length += AvFILLp(ary) - offset + 1; | |
4004 | if (length < 0) | |
4005 | length = 0; | |
4006 | } | |
79072805 LW |
4007 | } |
4008 | else | |
a0d0e21e | 4009 | length = AvMAX(ary) + 1; /* close enough to infinity */ |
79072805 | 4010 | } |
a0d0e21e LW |
4011 | else { |
4012 | offset = 0; | |
4013 | length = AvMAX(ary) + 1; | |
4014 | } | |
8cbc2e3b JH |
4015 | if (offset > AvFILLp(ary) + 1) { |
4016 | if (ckWARN(WARN_MISC)) | |
9014280d | 4017 | Perl_warner(aTHX_ packWARN(WARN_MISC), "splice() offset past end of array" ); |
93965878 | 4018 | offset = AvFILLp(ary) + 1; |
8cbc2e3b | 4019 | } |
93965878 | 4020 | after = AvFILLp(ary) + 1 - (offset + length); |
a0d0e21e LW |
4021 | if (after < 0) { /* not that much array */ |
4022 | length += after; /* offset+length now in array */ | |
4023 | after = 0; | |
4024 | if (!AvALLOC(ary)) | |
4025 | av_extend(ary, 0); | |
4026 | } | |
4027 | ||
4028 | /* At this point, MARK .. SP-1 is our new LIST */ | |
4029 | ||
4030 | newlen = SP - MARK; | |
4031 | diff = newlen - length; | |
13d7cbc1 GS |
4032 | if (newlen && !AvREAL(ary) && AvREIFY(ary)) |
4033 | av_reify(ary); | |
a0d0e21e | 4034 | |
50528de0 WL |
4035 | /* make new elements SVs now: avoid problems if they're from the array */ |
4036 | for (dst = MARK, i = newlen; i; i--) { | |
1b6737cc | 4037 | SV * const h = *dst; |
f2b990bf | 4038 | *dst++ = newSVsv(h); |
50528de0 WL |
4039 | } |
4040 | ||
a0d0e21e LW |
4041 | if (diff < 0) { /* shrinking the area */ |
4042 | if (newlen) { | |
a02a5408 | 4043 | Newx(tmparyval, newlen, SV*); /* so remember insertion */ |
a0d0e21e | 4044 | Copy(MARK, tmparyval, newlen, SV*); |
79072805 | 4045 | } |
a0d0e21e LW |
4046 | |
4047 | MARK = ORIGMARK + 1; | |
4048 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
4049 | MEXTEND(MARK, length); | |
4050 | Copy(AvARRAY(ary)+offset, MARK, length, SV*); | |
4051 | if (AvREAL(ary)) { | |
bbce6d69 | 4052 | EXTEND_MORTAL(length); |
36477c24 | 4053 | for (i = length, dst = MARK; i; i--) { |
d689ffdd | 4054 | sv_2mortal(*dst); /* free them eventualy */ |
36477c24 | 4055 | dst++; |
4056 | } | |
a0d0e21e LW |
4057 | } |
4058 | MARK += length - 1; | |
79072805 | 4059 | } |
a0d0e21e LW |
4060 | else { |
4061 | *MARK = AvARRAY(ary)[offset+length-1]; | |
4062 | if (AvREAL(ary)) { | |
d689ffdd | 4063 | sv_2mortal(*MARK); |
a0d0e21e LW |
4064 | for (i = length - 1, dst = &AvARRAY(ary)[offset]; i > 0; i--) |
4065 | SvREFCNT_dec(*dst++); /* free them now */ | |
79072805 | 4066 | } |
a0d0e21e | 4067 | } |
93965878 | 4068 | AvFILLp(ary) += diff; |
a0d0e21e LW |
4069 | |
4070 | /* pull up or down? */ | |
4071 | ||
4072 | if (offset < after) { /* easier to pull up */ | |
4073 | if (offset) { /* esp. if nothing to pull */ | |
4074 | src = &AvARRAY(ary)[offset-1]; | |
4075 | dst = src - diff; /* diff is negative */ | |
4076 | for (i = offset; i > 0; i--) /* can't trust Copy */ | |
4077 | *dst-- = *src--; | |
79072805 | 4078 | } |
a0d0e21e | 4079 | dst = AvARRAY(ary); |
f880fe2f | 4080 | SvPV_set(ary, (char*)(AvARRAY(ary) - diff)); /* diff is negative */ |
a0d0e21e LW |
4081 | AvMAX(ary) += diff; |
4082 | } | |
4083 | else { | |
4084 | if (after) { /* anything to pull down? */ | |
4085 | src = AvARRAY(ary) + offset + length; | |
4086 | dst = src + diff; /* diff is negative */ | |
4087 | Move(src, dst, after, SV*); | |
79072805 | 4088 | } |
93965878 | 4089 | dst = &AvARRAY(ary)[AvFILLp(ary)+1]; |
a0d0e21e LW |
4090 | /* avoid later double free */ |
4091 | } | |
4092 | i = -diff; | |
4093 | while (i) | |
3280af22 | 4094 | dst[--i] = &PL_sv_undef; |
a0d0e21e LW |
4095 | |
4096 | if (newlen) { | |
50528de0 | 4097 | Copy( tmparyval, AvARRAY(ary) + offset, newlen, SV* ); |
a0d0e21e LW |
4098 | Safefree(tmparyval); |
4099 | } | |
4100 | } | |
4101 | else { /* no, expanding (or same) */ | |
4102 | if (length) { | |
a02a5408 | 4103 | Newx(tmparyval, length, SV*); /* so remember deletion */ |
a0d0e21e LW |
4104 | Copy(AvARRAY(ary)+offset, tmparyval, length, SV*); |
4105 | } | |
4106 | ||
4107 | if (diff > 0) { /* expanding */ | |
4108 | ||
4109 | /* push up or down? */ | |
4110 | ||
4111 | if (offset < after && diff <= AvARRAY(ary) - AvALLOC(ary)) { | |
4112 | if (offset) { | |
4113 | src = AvARRAY(ary); | |
4114 | dst = src - diff; | |
4115 | Move(src, dst, offset, SV*); | |
79072805 | 4116 | } |
f880fe2f | 4117 | SvPV_set(ary, (char*)(AvARRAY(ary) - diff));/* diff is positive */ |
a0d0e21e | 4118 | AvMAX(ary) += diff; |
93965878 | 4119 | AvFILLp(ary) += diff; |
79072805 LW |
4120 | } |
4121 | else { | |
93965878 NIS |
4122 | if (AvFILLp(ary) + diff >= AvMAX(ary)) /* oh, well */ |
4123 | av_extend(ary, AvFILLp(ary) + diff); | |
4124 | AvFILLp(ary) += diff; | |
a0d0e21e LW |
4125 | |
4126 | if (after) { | |
93965878 | 4127 | dst = AvARRAY(ary) + AvFILLp(ary); |
a0d0e21e LW |
4128 | src = dst - diff; |
4129 | for (i = after; i; i--) { | |
4130 | *dst-- = *src--; | |
4131 | } | |
79072805 LW |
4132 | } |
4133 | } | |
a0d0e21e LW |
4134 | } |
4135 | ||
50528de0 WL |
4136 | if (newlen) { |
4137 | Copy( MARK, AvARRAY(ary) + offset, newlen, SV* ); | |
a0d0e21e | 4138 | } |
50528de0 | 4139 | |
a0d0e21e LW |
4140 | MARK = ORIGMARK + 1; |
4141 | if (GIMME == G_ARRAY) { /* copy return vals to stack */ | |
4142 | if (length) { | |
4143 | Copy(tmparyval, MARK, length, SV*); | |
4144 | if (AvREAL(ary)) { | |
bbce6d69 | 4145 | EXTEND_MORTAL(length); |
36477c24 | 4146 | for (i = length, dst = MARK; i; i--) { |
d689ffdd | 4147 | sv_2mortal(*dst); /* free them eventualy */ |
36477c24 | 4148 | dst++; |
4149 | } | |
79072805 | 4150 | } |
a0d0e21e | 4151 | Safefree(tmparyval); |
79072805 | 4152 | } |
a0d0e21e LW |
4153 | MARK += length - 1; |
4154 | } | |
4155 | else if (length--) { | |
4156 | *MARK = tmparyval[length]; | |
4157 | if (AvREAL(ary)) { | |
d689ffdd | 4158 | sv_2mortal(*MARK); |
a0d0e21e LW |
4159 | while (length-- > 0) |
4160 | SvREFCNT_dec(tmparyval[length]); | |
79072805 | 4161 | } |
a0d0e21e | 4162 | Safefree(tmparyval); |
79072805 | 4163 | } |
a0d0e21e | 4164 | else |
3280af22 | 4165 | *MARK = &PL_sv_undef; |
79072805 | 4166 | } |
a0d0e21e | 4167 | SP = MARK; |
79072805 LW |
4168 | RETURN; |
4169 | } | |
4170 | ||
a0d0e21e | 4171 | PP(pp_push) |
79072805 | 4172 | { |
27da23d5 | 4173 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
a0d0e21e | 4174 | register AV *ary = (AV*)*++MARK; |
1b6737cc | 4175 | const MAGIC * const mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied); |
79072805 | 4176 | |
1b6737cc | 4177 | if (mg) { |
33c27489 | 4178 | *MARK-- = SvTIED_obj((SV*)ary, mg); |
93965878 NIS |
4179 | PUSHMARK(MARK); |
4180 | PUTBACK; | |
a60c0954 | 4181 | ENTER; |
864dbfa3 | 4182 | call_method("PUSH",G_SCALAR|G_DISCARD); |
a60c0954 | 4183 | LEAVE; |
93965878 | 4184 | SPAGAIN; |
0a75904b TP |
4185 | SP = ORIGMARK; |
4186 | PUSHi( AvFILL(ary) + 1 ); | |
93965878 | 4187 | } |
a60c0954 | 4188 | else { |
a60c0954 | 4189 | for (++MARK; MARK <= SP; MARK++) { |
561b68a9 | 4190 | SV * const sv = newSV(0); |
a60c0954 NIS |
4191 | if (*MARK) |
4192 | sv_setsv(sv, *MARK); | |
0a75904b | 4193 | av_store(ary, AvFILLp(ary)+1, sv); |
a60c0954 | 4194 | } |
0a75904b TP |
4195 | SP = ORIGMARK; |
4196 | PUSHi( AvFILLp(ary) + 1 ); | |
79072805 | 4197 | } |
79072805 LW |
4198 | RETURN; |
4199 | } | |
4200 | ||
a0d0e21e | 4201 | PP(pp_shift) |
79072805 | 4202 | { |
97aff369 | 4203 | dVAR; |
39644a26 | 4204 | dSP; |
1b6737cc | 4205 | AV * const av = (AV*)POPs; |
789b4bc9 | 4206 | SV * const sv = PL_op->op_type == OP_SHIFT ? av_shift(av) : av_pop(av); |
79072805 | 4207 | EXTEND(SP, 1); |
c2b4a044 | 4208 | assert (sv); |
d689ffdd | 4209 | if (AvREAL(av)) |
a0d0e21e LW |
4210 | (void)sv_2mortal(sv); |
4211 | PUSHs(sv); | |
79072805 | 4212 | RETURN; |
79072805 LW |
4213 | } |
4214 | ||
a0d0e21e | 4215 | PP(pp_unshift) |
79072805 | 4216 | { |
27da23d5 | 4217 | dVAR; dSP; dMARK; dORIGMARK; dTARGET; |
a0d0e21e | 4218 | register AV *ary = (AV*)*++MARK; |
1b6737cc | 4219 | const MAGIC * const mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied); |
93965878 | 4220 | |
1b6737cc | 4221 | if (mg) { |
33c27489 | 4222 | *MARK-- = SvTIED_obj((SV*)ary, mg); |
7fd66d9d | 4223 | PUSHMARK(MARK); |
93965878 | 4224 | PUTBACK; |
a60c0954 | 4225 | ENTER; |
864dbfa3 | 4226 | call_method("UNSHIFT",G_SCALAR|G_DISCARD); |
a60c0954 | 4227 | LEAVE; |
93965878 | 4228 | SPAGAIN; |
93965878 | 4229 | } |
a60c0954 | 4230 | else { |
1b6737cc | 4231 | register I32 i = 0; |
a60c0954 NIS |
4232 | av_unshift(ary, SP - MARK); |
4233 | while (MARK < SP) { | |
1b6737cc | 4234 | SV * const sv = newSVsv(*++MARK); |
a60c0954 NIS |
4235 | (void)av_store(ary, i++, sv); |
4236 | } | |
79072805 | 4237 | } |
a0d0e21e LW |
4238 | SP = ORIGMARK; |
4239 | PUSHi( AvFILL(ary) + 1 ); | |
79072805 | 4240 | RETURN; |
79072805 LW |
4241 | } |
4242 | ||
a0d0e21e | 4243 | PP(pp_reverse) |
79072805 | 4244 | { |
97aff369 | 4245 | dVAR; dSP; dMARK; |
1b6737cc | 4246 | SV ** const oldsp = SP; |
79072805 | 4247 | |
a0d0e21e LW |
4248 | if (GIMME == G_ARRAY) { |
4249 | MARK++; | |
4250 | while (MARK < SP) { | |
1b6737cc | 4251 | register SV * const tmp = *MARK; |
a0d0e21e LW |
4252 | *MARK++ = *SP; |
4253 | *SP-- = tmp; | |
4254 | } | |
dd58a1ab | 4255 | /* safe as long as stack cannot get extended in the above */ |
a0d0e21e | 4256 | SP = oldsp; |
79072805 LW |
4257 | } |
4258 | else { | |
a0d0e21e LW |
4259 | register char *up; |
4260 | register char *down; | |
4261 | register I32 tmp; | |
4262 | dTARGET; | |
4263 | STRLEN len; | |
e1f795dc | 4264 | I32 padoff_du; |
79072805 | 4265 | |
7e2040f0 | 4266 | SvUTF8_off(TARG); /* decontaminate */ |
a0d0e21e | 4267 | if (SP - MARK > 1) |
3280af22 | 4268 | do_join(TARG, &PL_sv_no, MARK, SP); |
a0d0e21e | 4269 | else |
e1f795dc RGS |
4270 | sv_setsv(TARG, (SP > MARK) |
4271 | ? *SP | |
29289021 | 4272 | : (padoff_du = find_rundefsvoffset(), |
00b1698f NC |
4273 | (padoff_du == NOT_IN_PAD |
4274 | || PAD_COMPNAME_FLAGS_isOUR(padoff_du)) | |
e1f795dc | 4275 | ? DEFSV : PAD_SVl(padoff_du))); |
a0d0e21e LW |
4276 | up = SvPV_force(TARG, len); |
4277 | if (len > 1) { | |
7e2040f0 | 4278 | if (DO_UTF8(TARG)) { /* first reverse each character */ |
dfe13c55 | 4279 | U8* s = (U8*)SvPVX(TARG); |
349d4f2f | 4280 | const U8* send = (U8*)(s + len); |
a0ed51b3 | 4281 | while (s < send) { |
d742c382 | 4282 | if (UTF8_IS_INVARIANT(*s)) { |
a0ed51b3 LW |
4283 | s++; |
4284 | continue; | |
4285 | } | |
4286 | else { | |
9041c2e3 | 4287 | if (!utf8_to_uvchr(s, 0)) |
a0dbb045 | 4288 | break; |
dfe13c55 | 4289 | up = (char*)s; |
a0ed51b3 | 4290 | s += UTF8SKIP(s); |
dfe13c55 | 4291 | down = (char*)(s - 1); |
a0dbb045 | 4292 | /* reverse this character */ |
a0ed51b3 LW |
4293 | while (down > up) { |
4294 | tmp = *up; | |
4295 | *up++ = *down; | |
eb160463 | 4296 | *down-- = (char)tmp; |
a0ed51b3 LW |
4297 | } |
4298 | } | |
4299 | } | |
4300 | up = SvPVX(TARG); | |
4301 | } | |
a0d0e21e LW |
4302 | down = SvPVX(TARG) + len - 1; |
4303 | while (down > up) { | |
4304 | tmp = *up; | |
4305 | *up++ = *down; | |
eb160463 | 4306 | *down-- = (char)tmp; |
a0d0e21e | 4307 | } |
3aa33fe5 | 4308 | (void)SvPOK_only_UTF8(TARG); |
79072805 | 4309 | } |
a0d0e21e LW |
4310 | SP = MARK + 1; |
4311 | SETTARG; | |
79072805 | 4312 | } |
a0d0e21e | 4313 | RETURN; |
79072805 LW |
4314 | } |
4315 | ||
a0d0e21e | 4316 | PP(pp_split) |
79072805 | 4317 | { |
27da23d5 | 4318 | dVAR; dSP; dTARG; |
a0d0e21e | 4319 | AV *ary; |
467f0320 | 4320 | register IV limit = POPi; /* note, negative is forever */ |
1b6737cc | 4321 | SV * const sv = POPs; |
a0d0e21e | 4322 | STRLEN len; |
727b7506 | 4323 | register const char *s = SvPV_const(sv, len); |
1b6737cc | 4324 | const bool do_utf8 = DO_UTF8(sv); |
727b7506 | 4325 | const char *strend = s + len; |
44a8e56a | 4326 | register PMOP *pm; |
d9f97599 | 4327 | register REGEXP *rx; |
a0d0e21e | 4328 | register SV *dstr; |
727b7506 | 4329 | register const char *m; |
a0d0e21e | 4330 | I32 iters = 0; |
f54cb97a | 4331 | const STRLEN slen = do_utf8 ? utf8_length((U8*)s, (U8*)strend) : (strend - s); |
792b2c16 | 4332 | I32 maxiters = slen + 10; |
727b7506 | 4333 | const char *orig; |
1b6737cc | 4334 | const I32 origlimit = limit; |
a0d0e21e LW |
4335 | I32 realarray = 0; |
4336 | I32 base; | |
f54cb97a AL |
4337 | const I32 gimme = GIMME_V; |
4338 | const I32 oldsave = PL_savestack_ix; | |
8ec5e241 | 4339 | I32 make_mortal = 1; |
7fba1cd6 | 4340 | bool multiline = 0; |
8ec5e241 | 4341 | MAGIC *mg = (MAGIC *) NULL; |
79072805 | 4342 | |
44a8e56a | 4343 | #ifdef DEBUGGING |
4344 | Copy(&LvTARGOFF(POPs), &pm, 1, PMOP*); | |
4345 | #else | |
4346 | pm = (PMOP*)POPs; | |
4347 | #endif | |
a0d0e21e | 4348 | if (!pm || !s) |
2269b42e | 4349 | DIE(aTHX_ "panic: pp_split"); |
aaa362c4 | 4350 | rx = PM_GETRE(pm); |
bbce6d69 | 4351 | |
4352 | TAINT_IF((pm->op_pmflags & PMf_LOCALE) && | |
4353 | (pm->op_pmflags & (PMf_WHITE | PMf_SKIPWHITE))); | |
4354 | ||
a30b2f1f | 4355 | RX_MATCH_UTF8_set(rx, do_utf8); |
d9f424b2 | 4356 | |
971a9dd3 GS |
4357 | if (pm->op_pmreplroot) { |
4358 | #ifdef USE_ITHREADS | |
dd2155a4 | 4359 | ary = GvAVn((GV*)PAD_SVl(INT2PTR(PADOFFSET, pm->op_pmreplroot))); |
971a9dd3 | 4360 | #else |
a0d0e21e | 4361 | ary = GvAVn((GV*)pm->op_pmreplroot); |
971a9dd3 GS |
4362 | #endif |
4363 | } | |
a0d0e21e | 4364 | else if (gimme != G_ARRAY) |
3280af22 | 4365 | ary = GvAVn(PL_defgv); |
79072805 | 4366 | else |
7d49f689 | 4367 | ary = NULL; |
a0d0e21e LW |
4368 | if (ary && (gimme != G_ARRAY || (pm->op_pmflags & PMf_ONCE))) { |
4369 | realarray = 1; | |
8ec5e241 | 4370 | PUTBACK; |
a0d0e21e LW |
4371 | av_extend(ary,0); |
4372 | av_clear(ary); | |
8ec5e241 | 4373 | SPAGAIN; |
14befaf4 | 4374 | if ((mg = SvTIED_mg((SV*)ary, PERL_MAGIC_tied))) { |
8ec5e241 | 4375 | PUSHMARK(SP); |
33c27489 | 4376 | XPUSHs(SvTIED_obj((SV*)ary, mg)); |
8ec5e241 NIS |
4377 | } |
4378 | else { | |
1c0b011c | 4379 | if (!AvREAL(ary)) { |
1b6737cc | 4380 | I32 i; |
1c0b011c | 4381 | AvREAL_on(ary); |
abff13bb | 4382 | AvREIFY_off(ary); |
1c0b011c | 4383 | for (i = AvFILLp(ary); i >= 0; i--) |
3280af22 | 4384 | AvARRAY(ary)[i] = &PL_sv_undef; /* don't free mere refs */ |
1c0b011c NIS |
4385 | } |
4386 | /* temporarily switch stacks */ | |
8b7059b1 | 4387 | SAVESWITCHSTACK(PL_curstack, ary); |
8ec5e241 | 4388 | make_mortal = 0; |
1c0b011c | 4389 | } |
79072805 | 4390 | } |
3280af22 | 4391 | base = SP - PL_stack_base; |
a0d0e21e LW |
4392 | orig = s; |
4393 | if (pm->op_pmflags & PMf_SKIPWHITE) { | |
bbce6d69 | 4394 | if (pm->op_pmflags & PMf_LOCALE) { |
4395 | while (isSPACE_LC(*s)) | |
4396 | s++; | |
4397 | } | |
4398 | else { | |
4399 | while (isSPACE(*s)) | |
4400 | s++; | |
4401 | } | |
a0d0e21e | 4402 | } |
7fba1cd6 RD |
4403 | if (pm->op_pmflags & PMf_MULTILINE) { |
4404 | multiline = 1; | |
c07a80fd | 4405 | } |
4406 | ||
a0d0e21e LW |
4407 | if (!limit) |
4408 | limit = maxiters + 2; | |
4409 | if (pm->op_pmflags & PMf_WHITE) { | |
4410 | while (--limit) { | |
bbce6d69 | 4411 | m = s; |
4412 | while (m < strend && | |
4413 | !((pm->op_pmflags & PMf_LOCALE) | |
4414 | ? isSPACE_LC(*m) : isSPACE(*m))) | |
4415 | ++m; | |
a0d0e21e LW |
4416 | if (m >= strend) |
4417 | break; | |
bbce6d69 | 4418 | |
f2b990bf | 4419 | dstr = newSVpvn(s, m-s); |
8ec5e241 | 4420 | if (make_mortal) |
a0d0e21e | 4421 | sv_2mortal(dstr); |
792b2c16 | 4422 | if (do_utf8) |
28cb3359 | 4423 | (void)SvUTF8_on(dstr); |
a0d0e21e | 4424 | XPUSHs(dstr); |
bbce6d69 | 4425 | |
4426 | s = m + 1; | |
4427 | while (s < strend && | |
4428 | ((pm->op_pmflags & PMf_LOCALE) | |
4429 | ? isSPACE_LC(*s) : isSPACE(*s))) | |
4430 | ++s; | |
79072805 LW |
4431 | } |
4432 | } | |
770526c1 | 4433 | else if (rx->precomp[0] == '^' && rx->precomp[1] == '\0') { |
a0d0e21e | 4434 | while (--limit) { |
a6e20a40 AL |
4435 | for (m = s; m < strend && *m != '\n'; m++) |
4436 | ; | |
a0d0e21e LW |
4437 | m++; |
4438 | if (m >= strend) | |
4439 | break; | |
f2b990bf | 4440 | dstr = newSVpvn(s, m-s); |
8ec5e241 | 4441 | if (make_mortal) |
a0d0e21e | 4442 | sv_2mortal(dstr); |
792b2c16 | 4443 | if (do_utf8) |
28cb3359 | 4444 | (void)SvUTF8_on(dstr); |
a0d0e21e LW |
4445 | XPUSHs(dstr); |
4446 | s = m; | |
4447 | } | |
4448 | } | |
699c3c34 JH |
4449 | else if (do_utf8 == ((rx->reganch & ROPT_UTF8) != 0) && |
4450 | (rx->reganch & RE_USE_INTUIT) && !rx->nparens | |
d9f97599 GS |
4451 | && (rx->reganch & ROPT_CHECK_ALL) |
4452 | && !(rx->reganch & ROPT_ANCH)) { | |
1b6737cc AL |
4453 | const int tail = (rx->reganch & RE_INTUIT_TAIL); |
4454 | SV * const csv = CALLREG_INTUIT_STRING(aTHX_ rx); | |
cf93c79d | 4455 | |
ca5b42cb | 4456 | len = rx->minlen; |
1aa99e6b | 4457 | if (len == 1 && !(rx->reganch & ROPT_UTF8) && !tail) { |
1b6737cc | 4458 | const char c = *SvPV_nolen_const(csv); |
a0d0e21e | 4459 | while (--limit) { |
a6e20a40 AL |
4460 | for (m = s; m < strend && *m != c; m++) |
4461 | ; | |
a0d0e21e LW |
4462 | if (m >= strend) |
4463 | break; | |
f2b990bf | 4464 | dstr = newSVpvn(s, m-s); |
8ec5e241 | 4465 | if (make_mortal) |
a0d0e21e | 4466 | sv_2mortal(dstr); |
792b2c16 | 4467 | if (do_utf8) |
28cb3359 | 4468 | (void)SvUTF8_on(dstr); |
a0d0e21e | 4469 | XPUSHs(dstr); |
93f04dac JH |
4470 | /* The rx->minlen is in characters but we want to step |
4471 | * s ahead by bytes. */ | |
1aa99e6b IH |
4472 | if (do_utf8) |
4473 | s = (char*)utf8_hop((U8*)m, len); | |
4474 | else | |
4475 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e LW |
4476 | } |
4477 | } | |
4478 | else { | |
a0d0e21e | 4479 | while (s < strend && --limit && |
f722798b | 4480 | (m = fbm_instr((unsigned char*)s, (unsigned char*)strend, |
7fba1cd6 | 4481 | csv, multiline ? FBMrf_MULTILINE : 0)) ) |
a0d0e21e | 4482 | { |
f2b990bf | 4483 | dstr = newSVpvn(s, m-s); |
8ec5e241 | 4484 | if (make_mortal) |
a0d0e21e | 4485 | sv_2mortal(dstr); |
792b2c16 | 4486 | if (do_utf8) |
28cb3359 | 4487 | (void)SvUTF8_on(dstr); |
a0d0e21e | 4488 | XPUSHs(dstr); |
93f04dac JH |
4489 | /* The rx->minlen is in characters but we want to step |
4490 | * s ahead by bytes. */ | |
1aa99e6b IH |
4491 | if (do_utf8) |
4492 | s = (char*)utf8_hop((U8*)m, len); | |
4493 | else | |
4494 | s = m + len; /* Fake \n at the end */ | |
a0d0e21e | 4495 | } |
463ee0b2 | 4496 | } |
463ee0b2 | 4497 | } |
a0d0e21e | 4498 | else { |
792b2c16 | 4499 | maxiters += slen * rx->nparens; |
080c2dec | 4500 | while (s < strend && --limit) |
bbce6d69 | 4501 | { |
1b6737cc | 4502 | I32 rex_return; |
080c2dec | 4503 | PUTBACK; |
1b6737cc | 4504 | rex_return = CALLREGEXEC(aTHX_ rx, (char*)s, (char*)strend, (char*)orig, 1 , |
727b7506 | 4505 | sv, NULL, 0); |
080c2dec | 4506 | SPAGAIN; |
1b6737cc | 4507 | if (rex_return == 0) |
080c2dec | 4508 | break; |
d9f97599 | 4509 | TAINT_IF(RX_MATCH_TAINTED(rx)); |
cf93c79d | 4510 | if (RX_MATCH_COPIED(rx) && rx->subbeg != orig) { |
a0d0e21e LW |
4511 | m = s; |
4512 | s = orig; | |
cf93c79d | 4513 | orig = rx->subbeg; |
a0d0e21e LW |
4514 | s = orig + (m - s); |
4515 | strend = s + (strend - m); | |
4516 | } | |
cf93c79d | 4517 | m = rx->startp[0] + orig; |
f2b990bf | 4518 | dstr = newSVpvn(s, m-s); |
8ec5e241 | 4519 | if (make_mortal) |
a0d0e21e | 4520 | sv_2mortal(dstr); |
792b2c16 | 4521 | if (do_utf8) |
28cb3359 | 4522 | (void)SvUTF8_on(dstr); |
a0d0e21e | 4523 | XPUSHs(dstr); |
d9f97599 | 4524 | if (rx->nparens) { |
1b6737cc | 4525 | I32 i; |
eb160463 | 4526 | for (i = 1; i <= (I32)rx->nparens; i++) { |
cf93c79d IZ |
4527 | s = rx->startp[i] + orig; |
4528 | m = rx->endp[i] + orig; | |
6de67870 JP |
4529 | |
4530 | /* japhy (07/27/01) -- the (m && s) test doesn't catch | |
4531 | parens that didn't match -- they should be set to | |
4532 | undef, not the empty string */ | |
4533 | if (m >= orig && s >= orig) { | |
f2b990bf | 4534 | dstr = newSVpvn(s, m-s); |
748a9306 LW |
4535 | } |
4536 | else | |
6de67870 | 4537 | dstr = &PL_sv_undef; /* undef, not "" */ |
8ec5e241 | 4538 | if (make_mortal) |
a0d0e21e | 4539 | sv_2mortal(dstr); |
792b2c16 | 4540 | if (do_utf8) |
28cb3359 | 4541 | (void)SvUTF8_on(dstr); |
a0d0e21e LW |
4542 | XPUSHs(dstr); |
4543 | } | |
4544 | } | |
cf93c79d | 4545 | s = rx->endp[0] + orig; |
a0d0e21e | 4546 | } |
79072805 | 4547 | } |
8ec5e241 | 4548 | |
3280af22 | 4549 | iters = (SP - PL_stack_base) - base; |
a0d0e21e | 4550 | if (iters > maxiters) |
cea2e8a9 | 4551 | DIE(aTHX_ "Split loop"); |
8ec5e241 | 4552 | |
a0d0e21e LW |
4553 | /* keep field after final delim? */ |
4554 | if (s < strend || (iters && origlimit)) { | |
1b6737cc | 4555 | const STRLEN l = strend - s; |
f2b990bf | 4556 | dstr = newSVpvn(s, l); |
8ec5e241 | 4557 | if (make_mortal) |
a0d0e21e | 4558 | sv_2mortal(dstr); |
792b2c16 | 4559 | if (do_utf8) |
28cb3359 | 4560 | (void)SvUTF8_on(dstr); |
a0d0e21e LW |
4561 | XPUSHs(dstr); |
4562 | iters++; | |
79072805 | 4563 | } |
a0d0e21e | 4564 | else if (!origlimit) { |
89900bd3 SR |
4565 | while (iters > 0 && (!TOPs || !SvANY(TOPs) || SvCUR(TOPs) == 0)) { |
4566 | if (TOPs && !make_mortal) | |
4567 | sv_2mortal(TOPs); | |
4568 | iters--; | |
e3a8873f | 4569 | *SP-- = &PL_sv_undef; |
89900bd3 | 4570 | } |
a0d0e21e | 4571 | } |
8ec5e241 | 4572 | |
8b7059b1 DM |
4573 | PUTBACK; |
4574 | LEAVE_SCOPE(oldsave); /* may undo an earlier SWITCHSTACK */ | |
4575 | SPAGAIN; | |
a0d0e21e | 4576 | if (realarray) { |
8ec5e241 | 4577 | if (!mg) { |
1c0b011c NIS |
4578 | if (SvSMAGICAL(ary)) { |
4579 | PUTBACK; | |
4580 | mg_set((SV*)ary); | |
4581 | SPAGAIN; | |
4582 | } | |
4583 | if (gimme == G_ARRAY) { | |
4584 | EXTEND(SP, iters); | |
4585 | Copy(AvARRAY(ary), SP + 1, iters, SV*); | |
4586 | SP += iters; | |
4587 | RETURN; | |
4588 | } | |
8ec5e241 | 4589 | } |
1c0b011c | 4590 | else { |
fb73857a | 4591 | PUTBACK; |
8ec5e241 | 4592 | ENTER; |
864dbfa3 | 4593 | call_method("PUSH",G_SCALAR|G_DISCARD); |
8ec5e241 | 4594 | LEAVE; |
fb73857a | 4595 | SPAGAIN; |
8ec5e241 | 4596 | if (gimme == G_ARRAY) { |
1b6737cc | 4597 | I32 i; |
8ec5e241 NIS |
4598 | /* EXTEND should not be needed - we just popped them */ |
4599 | EXTEND(SP, iters); | |
4600 | for (i=0; i < iters; i++) { | |
4601 | SV **svp = av_fetch(ary, i, FALSE); | |
3280af22 | 4602 | PUSHs((svp) ? *svp : &PL_sv_undef); |
8ec5e241 | 4603 | } |
1c0b011c NIS |
4604 | RETURN; |
4605 | } | |
a0d0e21e LW |
4606 | } |
4607 | } | |
4608 | else { | |
4609 | if (gimme == G_ARRAY) | |
4610 | RETURN; | |
4611 | } | |
7f18b612 YST |
4612 | |
4613 | GETTARGET; | |
4614 | PUSHi(iters); | |
4615 | RETURN; | |
79072805 | 4616 | } |
85e6fe83 | 4617 | |
c0329465 MB |
4618 | PP(pp_lock) |
4619 | { | |
97aff369 | 4620 | dVAR; |
39644a26 | 4621 | dSP; |
c0329465 | 4622 | dTOPss; |
e55aaa0e | 4623 | SV *retsv = sv; |
68795e93 | 4624 | SvLOCK(sv); |
e55aaa0e MB |
4625 | if (SvTYPE(retsv) == SVt_PVAV || SvTYPE(retsv) == SVt_PVHV |
4626 | || SvTYPE(retsv) == SVt_PVCV) { | |
4627 | retsv = refto(retsv); | |
4628 | } | |
4629 | SETs(retsv); | |
c0329465 MB |
4630 | RETURN; |
4631 | } | |
a863c7d1 | 4632 | |
65bca31a NC |
4633 | |
4634 | PP(unimplemented_op) | |
4635 | { | |
97aff369 | 4636 | dVAR; |
65bca31a NC |
4637 | DIE(aTHX_ "panic: unimplemented op %s (#%d) called", OP_NAME(PL_op), |
4638 | PL_op->op_type); | |
4639 | } | |
4640 | ||
e609e586 NC |
4641 | /* |
4642 | * Local variables: | |
4643 | * c-indentation-style: bsd | |
4644 | * c-basic-offset: 4 | |
4645 | * indent-tabs-mode: t | |
4646 | * End: | |
4647 | * | |
37442d52 RGS |
4648 | * ex: set ts=8 sts=4 sw=4 noet: |
4649 | */ |