Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
4eb8286e | 3 | * Copyright (c) 1991-1999, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. | |
79072805 LW |
12 | */ |
13 | ||
14 | #include "EXTERN.h" | |
15 | #include "perl.h" | |
79072805 | 16 | |
c07a80fd | 17 | #ifdef OVR_DBL_DIG |
18 | /* Use an overridden DBL_DIG */ | |
19 | # ifdef DBL_DIG | |
20 | # undef DBL_DIG | |
21 | # endif | |
22 | # define DBL_DIG OVR_DBL_DIG | |
23 | #else | |
a0d0e21e LW |
24 | /* The following is all to get DBL_DIG, in order to pick a nice |
25 | default value for printing floating point numbers in Gconvert. | |
26 | (see config.h) | |
27 | */ | |
28 | #ifdef I_LIMITS | |
29 | #include <limits.h> | |
30 | #endif | |
31 | #ifdef I_FLOAT | |
32 | #include <float.h> | |
33 | #endif | |
34 | #ifndef HAS_DBL_DIG | |
35 | #define DBL_DIG 15 /* A guess that works lots of places */ | |
36 | #endif | |
c07a80fd | 37 | #endif |
38 | ||
76e3520e GS |
39 | #ifdef PERL_OBJECT |
40 | #define FCALL this->*f | |
41 | #define VTBL this->*vtbl | |
42 | ||
43 | #else /* !PERL_OBJECT */ | |
44 | ||
36477c24 | 45 | static IV asIV _((SV* sv)); |
46 | static UV asUV _((SV* sv)); | |
a0d0e21e | 47 | static SV *more_sv _((void)); |
cbe51380 GS |
48 | static void more_xiv _((void)); |
49 | static void more_xnv _((void)); | |
50 | static void more_xpv _((void)); | |
51 | static void more_xrv _((void)); | |
a0d0e21e LW |
52 | static XPVIV *new_xiv _((void)); |
53 | static XPVNV *new_xnv _((void)); | |
54 | static XPV *new_xpv _((void)); | |
55 | static XRV *new_xrv _((void)); | |
56 | static void del_xiv _((XPVIV* p)); | |
57 | static void del_xnv _((XPVNV* p)); | |
58 | static void del_xpv _((XPV* p)); | |
59 | static void del_xrv _((XRV* p)); | |
a0d0e21e | 60 | static void sv_unglob _((SV* sv)); |
810b8aa5 GS |
61 | static void sv_add_backref _((SV *tsv, SV *sv)); |
62 | static void sv_del_backref _((SV *sv)); | |
a0d0e21e | 63 | |
d665c133 GS |
64 | #ifndef PURIFY |
65 | static void *my_safemalloc(MEM_SIZE size); | |
66 | #endif | |
67 | ||
4561caa4 | 68 | typedef void (*SVFUNC) _((SV*)); |
76e3520e GS |
69 | #define VTBL *vtbl |
70 | #define FCALL *f | |
71 | ||
72 | #endif /* PERL_OBJECT */ | |
4561caa4 | 73 | |
6fc92669 | 74 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 75 | |
a0d0e21e | 76 | #ifdef PURIFY |
79072805 | 77 | |
053fc874 GS |
78 | #define new_SV(p) \ |
79 | STMT_START { \ | |
80 | LOCK_SV_MUTEX; \ | |
81 | (p) = (SV*)safemalloc(sizeof(SV)); \ | |
82 | reg_add(p); \ | |
83 | UNLOCK_SV_MUTEX; \ | |
84 | SvANY(p) = 0; \ | |
85 | SvREFCNT(p) = 1; \ | |
86 | SvFLAGS(p) = 0; \ | |
87 | } STMT_END | |
88 | ||
89 | #define del_SV(p) \ | |
90 | STMT_START { \ | |
91 | LOCK_SV_MUTEX; \ | |
92 | reg_remove(p); \ | |
93 | Safefree((char*)(p)); \ | |
94 | UNLOCK_SV_MUTEX; \ | |
95 | } STMT_END | |
4561caa4 CS |
96 | |
97 | static SV **registry; | |
00db4c45 | 98 | static I32 registry_size; |
4561caa4 CS |
99 | |
100 | #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size)) | |
101 | ||
102 | #define REG_REPLACE(sv,a,b) \ | |
053fc874 GS |
103 | STMT_START { \ |
104 | void* p = sv->sv_any; \ | |
105 | I32 h = REGHASH(sv, registry_size); \ | |
106 | I32 i = h; \ | |
107 | while (registry[i] != (a)) { \ | |
108 | if (++i >= registry_size) \ | |
109 | i = 0; \ | |
110 | if (i == h) \ | |
111 | die("SV registry bug"); \ | |
112 | } \ | |
113 | registry[i] = (b); \ | |
114 | } STMT_END | |
4561caa4 CS |
115 | |
116 | #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv) | |
117 | #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv) | |
118 | ||
119 | static void | |
120 | reg_add(sv) | |
121 | SV* sv; | |
122 | { | |
3280af22 | 123 | if (PL_sv_count >= (registry_size >> 1)) |
4561caa4 CS |
124 | { |
125 | SV **oldreg = registry; | |
00db4c45 | 126 | I32 oldsize = registry_size; |
4561caa4 | 127 | |
00db4c45 GS |
128 | registry_size = registry_size ? ((registry_size << 2) + 1) : 2037; |
129 | Newz(707, registry, registry_size, SV*); | |
4561caa4 CS |
130 | |
131 | if (oldreg) { | |
132 | I32 i; | |
133 | ||
134 | for (i = 0; i < oldsize; ++i) { | |
135 | SV* oldsv = oldreg[i]; | |
136 | if (oldsv) | |
137 | REG_ADD(oldsv); | |
138 | } | |
139 | Safefree(oldreg); | |
140 | } | |
141 | } | |
142 | ||
143 | REG_ADD(sv); | |
3280af22 | 144 | ++PL_sv_count; |
4561caa4 CS |
145 | } |
146 | ||
147 | static void | |
148 | reg_remove(sv) | |
149 | SV* sv; | |
150 | { | |
151 | REG_REMOVE(sv); | |
3280af22 | 152 | --PL_sv_count; |
4561caa4 CS |
153 | } |
154 | ||
155 | static void | |
156 | visit(f) | |
157 | SVFUNC f; | |
158 | { | |
159 | I32 i; | |
160 | ||
00db4c45 | 161 | for (i = 0; i < registry_size; ++i) { |
4561caa4 | 162 | SV* sv = registry[i]; |
00db4c45 | 163 | if (sv && SvTYPE(sv) != SVTYPEMASK) |
4561caa4 CS |
164 | (*f)(sv); |
165 | } | |
166 | } | |
a0d0e21e | 167 | |
4633a7c4 LW |
168 | void |
169 | sv_add_arena(ptr, size, flags) | |
170 | char* ptr; | |
171 | U32 size; | |
172 | U32 flags; | |
173 | { | |
174 | if (!(flags & SVf_FAKE)) | |
6ad3d225 | 175 | Safefree(ptr); |
4633a7c4 LW |
176 | } |
177 | ||
4561caa4 CS |
178 | #else /* ! PURIFY */ |
179 | ||
180 | /* | |
181 | * "A time to plant, and a time to uproot what was planted..." | |
182 | */ | |
183 | ||
053fc874 GS |
184 | #define plant_SV(p) \ |
185 | STMT_START { \ | |
186 | SvANY(p) = (void *)PL_sv_root; \ | |
187 | SvFLAGS(p) = SVTYPEMASK; \ | |
188 | PL_sv_root = (p); \ | |
189 | --PL_sv_count; \ | |
190 | } STMT_END | |
a0d0e21e | 191 | |
fba3b22e | 192 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
193 | #define uproot_SV(p) \ |
194 | STMT_START { \ | |
195 | (p) = PL_sv_root; \ | |
196 | PL_sv_root = (SV*)SvANY(p); \ | |
197 | ++PL_sv_count; \ | |
198 | } STMT_END | |
199 | ||
200 | #define new_SV(p) \ | |
201 | STMT_START { \ | |
202 | LOCK_SV_MUTEX; \ | |
203 | if (PL_sv_root) \ | |
204 | uproot_SV(p); \ | |
205 | else \ | |
206 | (p) = more_sv(); \ | |
207 | UNLOCK_SV_MUTEX; \ | |
208 | SvANY(p) = 0; \ | |
209 | SvREFCNT(p) = 1; \ | |
210 | SvFLAGS(p) = 0; \ | |
211 | } STMT_END | |
463ee0b2 | 212 | |
a0d0e21e | 213 | #ifdef DEBUGGING |
4561caa4 | 214 | |
053fc874 GS |
215 | #define del_SV(p) \ |
216 | STMT_START { \ | |
217 | LOCK_SV_MUTEX; \ | |
218 | if (PL_debug & 32768) \ | |
219 | del_sv(p); \ | |
220 | else \ | |
221 | plant_SV(p); \ | |
222 | UNLOCK_SV_MUTEX; \ | |
223 | } STMT_END | |
a0d0e21e | 224 | |
76e3520e | 225 | STATIC void |
8ac85365 | 226 | del_sv(SV *p) |
463ee0b2 | 227 | { |
3280af22 | 228 | if (PL_debug & 32768) { |
4633a7c4 | 229 | SV* sva; |
a0d0e21e LW |
230 | SV* sv; |
231 | SV* svend; | |
232 | int ok = 0; | |
3280af22 | 233 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
234 | sv = sva + 1; |
235 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
236 | if (p >= sv && p < svend) |
237 | ok = 1; | |
238 | } | |
239 | if (!ok) { | |
240 | warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p); | |
241 | return; | |
242 | } | |
243 | } | |
4561caa4 | 244 | plant_SV(p); |
463ee0b2 | 245 | } |
a0d0e21e | 246 | |
4561caa4 CS |
247 | #else /* ! DEBUGGING */ |
248 | ||
249 | #define del_SV(p) plant_SV(p) | |
250 | ||
251 | #endif /* DEBUGGING */ | |
463ee0b2 | 252 | |
4633a7c4 | 253 | void |
8ac85365 | 254 | sv_add_arena(char *ptr, U32 size, U32 flags) |
463ee0b2 | 255 | { |
4633a7c4 | 256 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
257 | register SV* sv; |
258 | register SV* svend; | |
4633a7c4 LW |
259 | Zero(sva, size, char); |
260 | ||
261 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 262 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
263 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
264 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
265 | ||
3280af22 NIS |
266 | PL_sv_arenaroot = sva; |
267 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
268 | |
269 | svend = &sva[SvREFCNT(sva) - 1]; | |
270 | sv = sva + 1; | |
463ee0b2 | 271 | while (sv < svend) { |
a0d0e21e | 272 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 273 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
274 | sv++; |
275 | } | |
276 | SvANY(sv) = 0; | |
4633a7c4 LW |
277 | SvFLAGS(sv) = SVTYPEMASK; |
278 | } | |
279 | ||
fba3b22e | 280 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 281 | STATIC SV* |
8ac85365 | 282 | more_sv(void) |
4633a7c4 | 283 | { |
4561caa4 CS |
284 | register SV* sv; |
285 | ||
3280af22 NIS |
286 | if (PL_nice_chunk) { |
287 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
288 | PL_nice_chunk = Nullch; | |
c07a80fd | 289 | } |
1edc1566 | 290 | else { |
291 | char *chunk; /* must use New here to match call to */ | |
292 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
293 | sv_add_arena(chunk, 1008, 0); | |
294 | } | |
4561caa4 CS |
295 | uproot_SV(sv); |
296 | return sv; | |
463ee0b2 LW |
297 | } |
298 | ||
76e3520e | 299 | STATIC void |
8ac85365 | 300 | visit(SVFUNC f) |
8990e307 | 301 | { |
4633a7c4 | 302 | SV* sva; |
8990e307 LW |
303 | SV* sv; |
304 | register SV* svend; | |
305 | ||
3280af22 | 306 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 307 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 CS |
308 | for (sv = sva + 1; sv < svend; ++sv) { |
309 | if (SvTYPE(sv) != SVTYPEMASK) | |
76e3520e | 310 | (FCALL)(sv); |
8990e307 LW |
311 | } |
312 | } | |
313 | } | |
314 | ||
4561caa4 CS |
315 | #endif /* PURIFY */ |
316 | ||
76e3520e | 317 | STATIC void |
8ac85365 | 318 | do_report_used(SV *sv) |
4561caa4 CS |
319 | { |
320 | if (SvTYPE(sv) != SVTYPEMASK) { | |
d1bf51dd | 321 | /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */ |
4561caa4 CS |
322 | PerlIO_printf(PerlIO_stderr(), "****\n"); |
323 | sv_dump(sv); | |
324 | } | |
325 | } | |
326 | ||
8990e307 | 327 | void |
8ac85365 | 328 | sv_report_used(void) |
4561caa4 | 329 | { |
ac4c12e7 | 330 | visit(FUNC_NAME_TO_PTR(do_report_used)); |
4561caa4 CS |
331 | } |
332 | ||
76e3520e | 333 | STATIC void |
8ac85365 | 334 | do_clean_objs(SV *sv) |
8990e307 | 335 | { |
a0d0e21e | 336 | SV* rv; |
8990e307 | 337 | |
4561caa4 | 338 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { |
d1bf51dd | 339 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));) |
4561caa4 CS |
340 | SvROK_off(sv); |
341 | SvRV(sv) = 0; | |
342 | SvREFCNT_dec(rv); | |
a5f75d66 | 343 | } |
4561caa4 CS |
344 | |
345 | /* XXX Might want to check arrays, etc. */ | |
346 | } | |
347 | ||
348 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
76e3520e | 349 | STATIC void |
8ac85365 | 350 | do_clean_named_objs(SV *sv) |
4561caa4 | 351 | { |
51ae5c03 JPC |
352 | if (SvTYPE(sv) == SVt_PVGV) { |
353 | if ( SvOBJECT(GvSV(sv)) || | |
354 | GvAV(sv) && SvOBJECT(GvAV(sv)) || | |
355 | GvHV(sv) && SvOBJECT(GvHV(sv)) || | |
356 | GvIO(sv) && SvOBJECT(GvIO(sv)) || | |
357 | GvCV(sv) && SvOBJECT(GvCV(sv)) ) | |
358 | { | |
359 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));) | |
360 | SvREFCNT_dec(sv); | |
361 | } | |
51ae5c03 | 362 | } |
4561caa4 | 363 | } |
a5f75d66 | 364 | #endif |
4561caa4 CS |
365 | |
366 | void | |
8ac85365 | 367 | sv_clean_objs(void) |
4561caa4 | 368 | { |
3280af22 | 369 | PL_in_clean_objs = TRUE; |
2d0f3c12 | 370 | visit(FUNC_NAME_TO_PTR(do_clean_objs)); |
4561caa4 | 371 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 372 | /* some barnacles may yet remain, clinging to typeglobs */ |
ac4c12e7 | 373 | visit(FUNC_NAME_TO_PTR(do_clean_named_objs)); |
4561caa4 | 374 | #endif |
3280af22 | 375 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
376 | } |
377 | ||
76e3520e | 378 | STATIC void |
8ac85365 | 379 | do_clean_all(SV *sv) |
4561caa4 | 380 | { |
01bc8b8d | 381 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%lx\n", sv) );) |
4561caa4 CS |
382 | SvFLAGS(sv) |= SVf_BREAK; |
383 | SvREFCNT_dec(sv); | |
8990e307 LW |
384 | } |
385 | ||
386 | void | |
8ac85365 | 387 | sv_clean_all(void) |
8990e307 | 388 | { |
3280af22 | 389 | PL_in_clean_all = TRUE; |
ac4c12e7 | 390 | visit(FUNC_NAME_TO_PTR(do_clean_all)); |
3280af22 | 391 | PL_in_clean_all = FALSE; |
8990e307 | 392 | } |
463ee0b2 | 393 | |
4633a7c4 | 394 | void |
8ac85365 | 395 | sv_free_arenas(void) |
4633a7c4 LW |
396 | { |
397 | SV* sva; | |
398 | SV* svanext; | |
399 | ||
400 | /* Free arenas here, but be careful about fake ones. (We assume | |
401 | contiguity of the fake ones with the corresponding real ones.) */ | |
402 | ||
3280af22 | 403 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
404 | svanext = (SV*) SvANY(sva); |
405 | while (svanext && SvFAKE(svanext)) | |
406 | svanext = (SV*) SvANY(svanext); | |
407 | ||
408 | if (!SvFAKE(sva)) | |
1edc1566 | 409 | Safefree((void *)sva); |
4633a7c4 | 410 | } |
5f05dabc | 411 | |
3280af22 NIS |
412 | if (PL_nice_chunk) |
413 | Safefree(PL_nice_chunk); | |
414 | PL_nice_chunk = Nullch; | |
415 | PL_nice_chunk_size = 0; | |
416 | PL_sv_arenaroot = 0; | |
417 | PL_sv_root = 0; | |
4633a7c4 LW |
418 | } |
419 | ||
76e3520e | 420 | STATIC XPVIV* |
8ac85365 | 421 | new_xiv(void) |
463ee0b2 | 422 | { |
ea7c11a3 | 423 | IV* xiv; |
cbe51380 GS |
424 | LOCK_SV_MUTEX; |
425 | if (!PL_xiv_root) | |
426 | more_xiv(); | |
427 | xiv = PL_xiv_root; | |
428 | /* | |
429 | * See comment in more_xiv() -- RAM. | |
430 | */ | |
431 | PL_xiv_root = *(IV**)xiv; | |
432 | UNLOCK_SV_MUTEX; | |
433 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
434 | } |
435 | ||
76e3520e | 436 | STATIC void |
8ac85365 | 437 | del_xiv(XPVIV *p) |
463ee0b2 | 438 | { |
23e6a22f | 439 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 440 | LOCK_SV_MUTEX; |
3280af22 NIS |
441 | *(IV**)xiv = PL_xiv_root; |
442 | PL_xiv_root = xiv; | |
cbe51380 | 443 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
444 | } |
445 | ||
cbe51380 | 446 | STATIC void |
8ac85365 | 447 | more_xiv(void) |
463ee0b2 | 448 | { |
ea7c11a3 SM |
449 | register IV* xiv; |
450 | register IV* xivend; | |
8c52afec IZ |
451 | XPV* ptr; |
452 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
3280af22 NIS |
453 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
454 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ | |
a0d0e21e | 455 | |
ea7c11a3 SM |
456 | xiv = (IV*) ptr; |
457 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
458 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ | |
3280af22 | 459 | PL_xiv_root = xiv; |
463ee0b2 | 460 | while (xiv < xivend) { |
ea7c11a3 | 461 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
462 | xiv++; |
463 | } | |
ea7c11a3 | 464 | *(IV**)xiv = 0; |
463ee0b2 LW |
465 | } |
466 | ||
76e3520e | 467 | STATIC XPVNV* |
8ac85365 | 468 | new_xnv(void) |
463ee0b2 LW |
469 | { |
470 | double* xnv; | |
cbe51380 GS |
471 | LOCK_SV_MUTEX; |
472 | if (!PL_xnv_root) | |
473 | more_xnv(); | |
474 | xnv = PL_xnv_root; | |
475 | PL_xnv_root = *(double**)xnv; | |
476 | UNLOCK_SV_MUTEX; | |
477 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
478 | } |
479 | ||
76e3520e | 480 | STATIC void |
8ac85365 | 481 | del_xnv(XPVNV *p) |
463ee0b2 | 482 | { |
23e6a22f | 483 | double* xnv = (double*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 484 | LOCK_SV_MUTEX; |
3280af22 NIS |
485 | *(double**)xnv = PL_xnv_root; |
486 | PL_xnv_root = xnv; | |
cbe51380 | 487 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
488 | } |
489 | ||
cbe51380 | 490 | STATIC void |
8ac85365 | 491 | more_xnv(void) |
463ee0b2 | 492 | { |
463ee0b2 LW |
493 | register double* xnv; |
494 | register double* xnvend; | |
8c52afec | 495 | New(711, xnv, 1008/sizeof(double), double); |
463ee0b2 LW |
496 | xnvend = &xnv[1008 / sizeof(double) - 1]; |
497 | xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 498 | PL_xnv_root = xnv; |
463ee0b2 LW |
499 | while (xnv < xnvend) { |
500 | *(double**)xnv = (double*)(xnv + 1); | |
501 | xnv++; | |
502 | } | |
503 | *(double**)xnv = 0; | |
463ee0b2 LW |
504 | } |
505 | ||
76e3520e | 506 | STATIC XRV* |
8ac85365 | 507 | new_xrv(void) |
ed6116ce LW |
508 | { |
509 | XRV* xrv; | |
cbe51380 GS |
510 | LOCK_SV_MUTEX; |
511 | if (!PL_xrv_root) | |
512 | more_xrv(); | |
513 | xrv = PL_xrv_root; | |
514 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
515 | UNLOCK_SV_MUTEX; | |
516 | return xrv; | |
ed6116ce LW |
517 | } |
518 | ||
76e3520e | 519 | STATIC void |
8ac85365 | 520 | del_xrv(XRV *p) |
ed6116ce | 521 | { |
cbe51380 | 522 | LOCK_SV_MUTEX; |
3280af22 NIS |
523 | p->xrv_rv = (SV*)PL_xrv_root; |
524 | PL_xrv_root = p; | |
cbe51380 | 525 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
526 | } |
527 | ||
cbe51380 | 528 | STATIC void |
8ac85365 | 529 | more_xrv(void) |
ed6116ce | 530 | { |
ed6116ce LW |
531 | register XRV* xrv; |
532 | register XRV* xrvend; | |
3280af22 NIS |
533 | New(712, PL_xrv_root, 1008/sizeof(XRV), XRV); |
534 | xrv = PL_xrv_root; | |
ed6116ce LW |
535 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
536 | while (xrv < xrvend) { | |
537 | xrv->xrv_rv = (SV*)(xrv + 1); | |
538 | xrv++; | |
539 | } | |
540 | xrv->xrv_rv = 0; | |
ed6116ce LW |
541 | } |
542 | ||
76e3520e | 543 | STATIC XPV* |
8ac85365 | 544 | new_xpv(void) |
463ee0b2 LW |
545 | { |
546 | XPV* xpv; | |
cbe51380 GS |
547 | LOCK_SV_MUTEX; |
548 | if (!PL_xpv_root) | |
549 | more_xpv(); | |
550 | xpv = PL_xpv_root; | |
551 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
552 | UNLOCK_SV_MUTEX; | |
553 | return xpv; | |
463ee0b2 LW |
554 | } |
555 | ||
76e3520e | 556 | STATIC void |
8ac85365 | 557 | del_xpv(XPV *p) |
463ee0b2 | 558 | { |
cbe51380 | 559 | LOCK_SV_MUTEX; |
3280af22 NIS |
560 | p->xpv_pv = (char*)PL_xpv_root; |
561 | PL_xpv_root = p; | |
cbe51380 | 562 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
563 | } |
564 | ||
cbe51380 | 565 | STATIC void |
8ac85365 | 566 | more_xpv(void) |
463ee0b2 | 567 | { |
463ee0b2 LW |
568 | register XPV* xpv; |
569 | register XPV* xpvend; | |
3280af22 NIS |
570 | New(713, PL_xpv_root, 1008/sizeof(XPV), XPV); |
571 | xpv = PL_xpv_root; | |
463ee0b2 LW |
572 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
573 | while (xpv < xpvend) { | |
574 | xpv->xpv_pv = (char*)(xpv + 1); | |
575 | xpv++; | |
576 | } | |
577 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
578 | } |
579 | ||
580 | #ifdef PURIFY | |
8990e307 | 581 | #define new_XIV() (void*)safemalloc(sizeof(XPVIV)) |
6ad3d225 | 582 | #define del_XIV(p) Safefree((char*)p) |
463ee0b2 | 583 | #else |
85e6fe83 | 584 | #define new_XIV() (void*)new_xiv() |
8ac85365 | 585 | #define del_XIV(p) del_xiv((XPVIV*) p) |
463ee0b2 LW |
586 | #endif |
587 | ||
588 | #ifdef PURIFY | |
8990e307 | 589 | #define new_XNV() (void*)safemalloc(sizeof(XPVNV)) |
6ad3d225 | 590 | #define del_XNV(p) Safefree((char*)p) |
463ee0b2 | 591 | #else |
85e6fe83 | 592 | #define new_XNV() (void*)new_xnv() |
8ac85365 | 593 | #define del_XNV(p) del_xnv((XPVNV*) p) |
463ee0b2 LW |
594 | #endif |
595 | ||
596 | #ifdef PURIFY | |
8990e307 | 597 | #define new_XRV() (void*)safemalloc(sizeof(XRV)) |
6ad3d225 | 598 | #define del_XRV(p) Safefree((char*)p) |
ed6116ce | 599 | #else |
85e6fe83 | 600 | #define new_XRV() (void*)new_xrv() |
8ac85365 | 601 | #define del_XRV(p) del_xrv((XRV*) p) |
ed6116ce LW |
602 | #endif |
603 | ||
604 | #ifdef PURIFY | |
8990e307 | 605 | #define new_XPV() (void*)safemalloc(sizeof(XPV)) |
6ad3d225 | 606 | #define del_XPV(p) Safefree((char*)p) |
463ee0b2 | 607 | #else |
85e6fe83 | 608 | #define new_XPV() (void*)new_xpv() |
8ac85365 | 609 | #define del_XPV(p) del_xpv((XPV *)p) |
463ee0b2 LW |
610 | #endif |
611 | ||
8c52afec IZ |
612 | #ifdef PURIFY |
613 | # define my_safemalloc(s) safemalloc(s) | |
86058a2d | 614 | # define my_safefree(s) safefree(s) |
8c52afec | 615 | #else |
9d8a25dc | 616 | STATIC void* |
d665c133 | 617 | my_safemalloc(MEM_SIZE size) |
8c52afec IZ |
618 | { |
619 | char *p; | |
620 | New(717, p, size, char); | |
621 | return (void*)p; | |
622 | } | |
623 | # define my_safefree(s) Safefree(s) | |
624 | #endif | |
625 | ||
626 | #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV)) | |
627 | #define del_XPVIV(p) my_safefree((char*)p) | |
628 | ||
629 | #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV)) | |
630 | #define del_XPVNV(p) my_safefree((char*)p) | |
631 | ||
632 | #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG)) | |
633 | #define del_XPVMG(p) my_safefree((char*)p) | |
634 | ||
635 | #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV)) | |
636 | #define del_XPVLV(p) my_safefree((char*)p) | |
637 | ||
638 | #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV)) | |
639 | #define del_XPVAV(p) my_safefree((char*)p) | |
640 | ||
641 | #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV)) | |
642 | #define del_XPVHV(p) my_safefree((char*)p) | |
643 | ||
644 | #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV)) | |
645 | #define del_XPVCV(p) my_safefree((char*)p) | |
646 | ||
647 | #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV)) | |
648 | #define del_XPVGV(p) my_safefree((char*)p) | |
649 | ||
650 | #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM)) | |
651 | #define del_XPVBM(p) my_safefree((char*)p) | |
652 | ||
653 | #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM)) | |
654 | #define del_XPVFM(p) my_safefree((char*)p) | |
655 | ||
656 | #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO)) | |
657 | #define del_XPVIO(p) my_safefree((char*)p) | |
8990e307 | 658 | |
79072805 | 659 | bool |
8ac85365 | 660 | sv_upgrade(register SV *sv, U32 mt) |
79072805 LW |
661 | { |
662 | char* pv; | |
663 | U32 cur; | |
664 | U32 len; | |
a0d0e21e | 665 | IV iv; |
79072805 LW |
666 | double nv; |
667 | MAGIC* magic; | |
668 | HV* stash; | |
669 | ||
670 | if (SvTYPE(sv) == mt) | |
671 | return TRUE; | |
672 | ||
a5f75d66 AD |
673 | if (mt < SVt_PVIV) |
674 | (void)SvOOK_off(sv); | |
675 | ||
79072805 LW |
676 | switch (SvTYPE(sv)) { |
677 | case SVt_NULL: | |
678 | pv = 0; | |
679 | cur = 0; | |
680 | len = 0; | |
681 | iv = 0; | |
682 | nv = 0.0; | |
683 | magic = 0; | |
684 | stash = 0; | |
685 | break; | |
79072805 LW |
686 | case SVt_IV: |
687 | pv = 0; | |
688 | cur = 0; | |
689 | len = 0; | |
463ee0b2 LW |
690 | iv = SvIVX(sv); |
691 | nv = (double)SvIVX(sv); | |
79072805 LW |
692 | del_XIV(SvANY(sv)); |
693 | magic = 0; | |
694 | stash = 0; | |
ed6116ce | 695 | if (mt == SVt_NV) |
463ee0b2 | 696 | mt = SVt_PVNV; |
ed6116ce LW |
697 | else if (mt < SVt_PVIV) |
698 | mt = SVt_PVIV; | |
79072805 LW |
699 | break; |
700 | case SVt_NV: | |
701 | pv = 0; | |
702 | cur = 0; | |
703 | len = 0; | |
463ee0b2 | 704 | nv = SvNVX(sv); |
1bd302c3 | 705 | iv = I_V(nv); |
79072805 LW |
706 | magic = 0; |
707 | stash = 0; | |
708 | del_XNV(SvANY(sv)); | |
709 | SvANY(sv) = 0; | |
ed6116ce | 710 | if (mt < SVt_PVNV) |
79072805 LW |
711 | mt = SVt_PVNV; |
712 | break; | |
ed6116ce LW |
713 | case SVt_RV: |
714 | pv = (char*)SvRV(sv); | |
715 | cur = 0; | |
716 | len = 0; | |
a0d0e21e | 717 | iv = (IV)pv; |
ed6116ce LW |
718 | nv = (double)(unsigned long)pv; |
719 | del_XRV(SvANY(sv)); | |
720 | magic = 0; | |
721 | stash = 0; | |
722 | break; | |
79072805 | 723 | case SVt_PV: |
463ee0b2 | 724 | pv = SvPVX(sv); |
79072805 LW |
725 | cur = SvCUR(sv); |
726 | len = SvLEN(sv); | |
727 | iv = 0; | |
728 | nv = 0.0; | |
729 | magic = 0; | |
730 | stash = 0; | |
731 | del_XPV(SvANY(sv)); | |
748a9306 LW |
732 | if (mt <= SVt_IV) |
733 | mt = SVt_PVIV; | |
734 | else if (mt == SVt_NV) | |
735 | mt = SVt_PVNV; | |
79072805 LW |
736 | break; |
737 | case SVt_PVIV: | |
463ee0b2 | 738 | pv = SvPVX(sv); |
79072805 LW |
739 | cur = SvCUR(sv); |
740 | len = SvLEN(sv); | |
463ee0b2 | 741 | iv = SvIVX(sv); |
79072805 LW |
742 | nv = 0.0; |
743 | magic = 0; | |
744 | stash = 0; | |
745 | del_XPVIV(SvANY(sv)); | |
746 | break; | |
747 | case SVt_PVNV: | |
463ee0b2 | 748 | pv = SvPVX(sv); |
79072805 LW |
749 | cur = SvCUR(sv); |
750 | len = SvLEN(sv); | |
463ee0b2 LW |
751 | iv = SvIVX(sv); |
752 | nv = SvNVX(sv); | |
79072805 LW |
753 | magic = 0; |
754 | stash = 0; | |
755 | del_XPVNV(SvANY(sv)); | |
756 | break; | |
757 | case SVt_PVMG: | |
463ee0b2 | 758 | pv = SvPVX(sv); |
79072805 LW |
759 | cur = SvCUR(sv); |
760 | len = SvLEN(sv); | |
463ee0b2 LW |
761 | iv = SvIVX(sv); |
762 | nv = SvNVX(sv); | |
79072805 LW |
763 | magic = SvMAGIC(sv); |
764 | stash = SvSTASH(sv); | |
765 | del_XPVMG(SvANY(sv)); | |
766 | break; | |
767 | default: | |
463ee0b2 | 768 | croak("Can't upgrade that kind of scalar"); |
79072805 LW |
769 | } |
770 | ||
771 | switch (mt) { | |
772 | case SVt_NULL: | |
463ee0b2 | 773 | croak("Can't upgrade to undef"); |
79072805 LW |
774 | case SVt_IV: |
775 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 776 | SvIVX(sv) = iv; |
79072805 LW |
777 | break; |
778 | case SVt_NV: | |
779 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 780 | SvNVX(sv) = nv; |
79072805 | 781 | break; |
ed6116ce LW |
782 | case SVt_RV: |
783 | SvANY(sv) = new_XRV(); | |
784 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 785 | break; |
79072805 LW |
786 | case SVt_PV: |
787 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 788 | SvPVX(sv) = pv; |
79072805 LW |
789 | SvCUR(sv) = cur; |
790 | SvLEN(sv) = len; | |
791 | break; | |
792 | case SVt_PVIV: | |
793 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 794 | SvPVX(sv) = pv; |
79072805 LW |
795 | SvCUR(sv) = cur; |
796 | SvLEN(sv) = len; | |
463ee0b2 | 797 | SvIVX(sv) = iv; |
79072805 | 798 | if (SvNIOK(sv)) |
a0d0e21e | 799 | (void)SvIOK_on(sv); |
79072805 LW |
800 | SvNOK_off(sv); |
801 | break; | |
802 | case SVt_PVNV: | |
803 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 804 | SvPVX(sv) = pv; |
79072805 LW |
805 | SvCUR(sv) = cur; |
806 | SvLEN(sv) = len; | |
463ee0b2 LW |
807 | SvIVX(sv) = iv; |
808 | SvNVX(sv) = nv; | |
79072805 LW |
809 | break; |
810 | case SVt_PVMG: | |
811 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 812 | SvPVX(sv) = pv; |
79072805 LW |
813 | SvCUR(sv) = cur; |
814 | SvLEN(sv) = len; | |
463ee0b2 LW |
815 | SvIVX(sv) = iv; |
816 | SvNVX(sv) = nv; | |
79072805 LW |
817 | SvMAGIC(sv) = magic; |
818 | SvSTASH(sv) = stash; | |
819 | break; | |
820 | case SVt_PVLV: | |
821 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 822 | SvPVX(sv) = pv; |
79072805 LW |
823 | SvCUR(sv) = cur; |
824 | SvLEN(sv) = len; | |
463ee0b2 LW |
825 | SvIVX(sv) = iv; |
826 | SvNVX(sv) = nv; | |
79072805 LW |
827 | SvMAGIC(sv) = magic; |
828 | SvSTASH(sv) = stash; | |
829 | LvTARGOFF(sv) = 0; | |
830 | LvTARGLEN(sv) = 0; | |
831 | LvTARG(sv) = 0; | |
832 | LvTYPE(sv) = 0; | |
833 | break; | |
834 | case SVt_PVAV: | |
835 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
836 | if (pv) |
837 | Safefree(pv); | |
2304df62 | 838 | SvPVX(sv) = 0; |
d1bf51dd | 839 | AvMAX(sv) = -1; |
93965878 | 840 | AvFILLp(sv) = -1; |
463ee0b2 LW |
841 | SvIVX(sv) = 0; |
842 | SvNVX(sv) = 0.0; | |
843 | SvMAGIC(sv) = magic; | |
844 | SvSTASH(sv) = stash; | |
845 | AvALLOC(sv) = 0; | |
79072805 LW |
846 | AvARYLEN(sv) = 0; |
847 | AvFLAGS(sv) = 0; | |
848 | break; | |
849 | case SVt_PVHV: | |
850 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
851 | if (pv) |
852 | Safefree(pv); | |
853 | SvPVX(sv) = 0; | |
854 | HvFILL(sv) = 0; | |
855 | HvMAX(sv) = 0; | |
856 | HvKEYS(sv) = 0; | |
857 | SvNVX(sv) = 0.0; | |
79072805 LW |
858 | SvMAGIC(sv) = magic; |
859 | SvSTASH(sv) = stash; | |
79072805 LW |
860 | HvRITER(sv) = 0; |
861 | HvEITER(sv) = 0; | |
862 | HvPMROOT(sv) = 0; | |
863 | HvNAME(sv) = 0; | |
79072805 LW |
864 | break; |
865 | case SVt_PVCV: | |
866 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 867 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 868 | SvPVX(sv) = pv; |
79072805 LW |
869 | SvCUR(sv) = cur; |
870 | SvLEN(sv) = len; | |
463ee0b2 LW |
871 | SvIVX(sv) = iv; |
872 | SvNVX(sv) = nv; | |
79072805 LW |
873 | SvMAGIC(sv) = magic; |
874 | SvSTASH(sv) = stash; | |
79072805 LW |
875 | break; |
876 | case SVt_PVGV: | |
877 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 878 | SvPVX(sv) = pv; |
79072805 LW |
879 | SvCUR(sv) = cur; |
880 | SvLEN(sv) = len; | |
463ee0b2 LW |
881 | SvIVX(sv) = iv; |
882 | SvNVX(sv) = nv; | |
79072805 LW |
883 | SvMAGIC(sv) = magic; |
884 | SvSTASH(sv) = stash; | |
93a17b20 | 885 | GvGP(sv) = 0; |
79072805 LW |
886 | GvNAME(sv) = 0; |
887 | GvNAMELEN(sv) = 0; | |
888 | GvSTASH(sv) = 0; | |
a5f75d66 | 889 | GvFLAGS(sv) = 0; |
79072805 LW |
890 | break; |
891 | case SVt_PVBM: | |
892 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 893 | SvPVX(sv) = pv; |
79072805 LW |
894 | SvCUR(sv) = cur; |
895 | SvLEN(sv) = len; | |
463ee0b2 LW |
896 | SvIVX(sv) = iv; |
897 | SvNVX(sv) = nv; | |
79072805 LW |
898 | SvMAGIC(sv) = magic; |
899 | SvSTASH(sv) = stash; | |
900 | BmRARE(sv) = 0; | |
901 | BmUSEFUL(sv) = 0; | |
902 | BmPREVIOUS(sv) = 0; | |
903 | break; | |
904 | case SVt_PVFM: | |
905 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 906 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 907 | SvPVX(sv) = pv; |
79072805 LW |
908 | SvCUR(sv) = cur; |
909 | SvLEN(sv) = len; | |
463ee0b2 LW |
910 | SvIVX(sv) = iv; |
911 | SvNVX(sv) = nv; | |
79072805 LW |
912 | SvMAGIC(sv) = magic; |
913 | SvSTASH(sv) = stash; | |
79072805 | 914 | break; |
8990e307 LW |
915 | case SVt_PVIO: |
916 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 917 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
918 | SvPVX(sv) = pv; |
919 | SvCUR(sv) = cur; | |
920 | SvLEN(sv) = len; | |
921 | SvIVX(sv) = iv; | |
922 | SvNVX(sv) = nv; | |
923 | SvMAGIC(sv) = magic; | |
924 | SvSTASH(sv) = stash; | |
85e6fe83 | 925 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
926 | break; |
927 | } | |
928 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
929 | SvFLAGS(sv) |= mt; | |
79072805 LW |
930 | return TRUE; |
931 | } | |
932 | ||
79072805 | 933 | int |
8ac85365 | 934 | sv_backoff(register SV *sv) |
79072805 LW |
935 | { |
936 | assert(SvOOK(sv)); | |
463ee0b2 LW |
937 | if (SvIVX(sv)) { |
938 | char *s = SvPVX(sv); | |
939 | SvLEN(sv) += SvIVX(sv); | |
940 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 941 | SvIV_set(sv, 0); |
463ee0b2 | 942 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
943 | } |
944 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 945 | return 0; |
79072805 LW |
946 | } |
947 | ||
948 | char * | |
22c35a8c | 949 | sv_grow(register SV *sv, register STRLEN newlen) |
79072805 LW |
950 | { |
951 | register char *s; | |
952 | ||
55497cff | 953 | #ifdef HAS_64K_LIMIT |
79072805 | 954 | if (newlen >= 0x10000) { |
d1bf51dd | 955 | PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen); |
79072805 LW |
956 | my_exit(1); |
957 | } | |
55497cff | 958 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
959 | if (SvROK(sv)) |
960 | sv_unref(sv); | |
79072805 LW |
961 | if (SvTYPE(sv) < SVt_PV) { |
962 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 963 | s = SvPVX(sv); |
79072805 LW |
964 | } |
965 | else if (SvOOK(sv)) { /* pv is offset? */ | |
966 | sv_backoff(sv); | |
463ee0b2 | 967 | s = SvPVX(sv); |
79072805 LW |
968 | if (newlen > SvLEN(sv)) |
969 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
970 | #ifdef HAS_64K_LIMIT |
971 | if (newlen >= 0x10000) | |
972 | newlen = 0xFFFF; | |
973 | #endif | |
79072805 LW |
974 | } |
975 | else | |
463ee0b2 | 976 | s = SvPVX(sv); |
79072805 | 977 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 978 | if (SvLEN(sv) && s) { |
1fe09876 | 979 | #if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST) |
8d6dde3e IZ |
980 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
981 | if (newlen <= l) { | |
982 | SvLEN_set(sv, l); | |
983 | return s; | |
984 | } else | |
c70c8a0a | 985 | #endif |
79072805 | 986 | Renew(s,newlen,char); |
8d6dde3e | 987 | } |
79072805 LW |
988 | else |
989 | New(703,s,newlen,char); | |
990 | SvPV_set(sv, s); | |
991 | SvLEN_set(sv, newlen); | |
992 | } | |
993 | return s; | |
994 | } | |
995 | ||
996 | void | |
8ac85365 | 997 | sv_setiv(register SV *sv, IV i) |
79072805 | 998 | { |
2213622d | 999 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1000 | switch (SvTYPE(sv)) { |
1001 | case SVt_NULL: | |
79072805 | 1002 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1003 | break; |
1004 | case SVt_NV: | |
1005 | sv_upgrade(sv, SVt_PVNV); | |
1006 | break; | |
ed6116ce | 1007 | case SVt_RV: |
463ee0b2 | 1008 | case SVt_PV: |
79072805 | 1009 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1010 | break; |
a0d0e21e LW |
1011 | |
1012 | case SVt_PVGV: | |
a0d0e21e LW |
1013 | case SVt_PVAV: |
1014 | case SVt_PVHV: | |
1015 | case SVt_PVCV: | |
1016 | case SVt_PVFM: | |
1017 | case SVt_PVIO: | |
11343788 MB |
1018 | { |
1019 | dTHR; | |
1020 | croak("Can't coerce %s to integer in %s", sv_reftype(sv,0), | |
22c35a8c | 1021 | PL_op_desc[PL_op->op_type]); |
11343788 | 1022 | } |
463ee0b2 | 1023 | } |
a0d0e21e | 1024 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1025 | SvIVX(sv) = i; |
463ee0b2 | 1026 | SvTAINT(sv); |
79072805 LW |
1027 | } |
1028 | ||
1029 | void | |
ef50df4b GS |
1030 | sv_setiv_mg(register SV *sv, IV i) |
1031 | { | |
1032 | sv_setiv(sv,i); | |
1033 | SvSETMAGIC(sv); | |
1034 | } | |
1035 | ||
1036 | void | |
8ac85365 | 1037 | sv_setuv(register SV *sv, UV u) |
55497cff | 1038 | { |
25da4f38 IZ |
1039 | sv_setiv(sv, 0); |
1040 | SvIsUV_on(sv); | |
1041 | SvUVX(sv) = u; | |
55497cff | 1042 | } |
1043 | ||
1044 | void | |
ef50df4b GS |
1045 | sv_setuv_mg(register SV *sv, UV u) |
1046 | { | |
1047 | sv_setuv(sv,u); | |
1048 | SvSETMAGIC(sv); | |
1049 | } | |
1050 | ||
1051 | void | |
8ac85365 | 1052 | sv_setnv(register SV *sv, double num) |
79072805 | 1053 | { |
2213622d | 1054 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1055 | switch (SvTYPE(sv)) { |
1056 | case SVt_NULL: | |
1057 | case SVt_IV: | |
79072805 | 1058 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1059 | break; |
a0d0e21e LW |
1060 | case SVt_RV: |
1061 | case SVt_PV: | |
1062 | case SVt_PVIV: | |
79072805 | 1063 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1064 | break; |
827b7e14 | 1065 | |
a0d0e21e | 1066 | case SVt_PVGV: |
a0d0e21e LW |
1067 | case SVt_PVAV: |
1068 | case SVt_PVHV: | |
1069 | case SVt_PVCV: | |
1070 | case SVt_PVFM: | |
1071 | case SVt_PVIO: | |
11343788 MB |
1072 | { |
1073 | dTHR; | |
1074 | croak("Can't coerce %s to number in %s", sv_reftype(sv,0), | |
22c35a8c | 1075 | PL_op_name[PL_op->op_type]); |
11343788 | 1076 | } |
79072805 | 1077 | } |
463ee0b2 | 1078 | SvNVX(sv) = num; |
a0d0e21e | 1079 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1080 | SvTAINT(sv); |
79072805 LW |
1081 | } |
1082 | ||
ef50df4b GS |
1083 | void |
1084 | sv_setnv_mg(register SV *sv, double num) | |
1085 | { | |
1086 | sv_setnv(sv,num); | |
1087 | SvSETMAGIC(sv); | |
1088 | } | |
1089 | ||
76e3520e | 1090 | STATIC void |
8ac85365 | 1091 | not_a_number(SV *sv) |
a0d0e21e | 1092 | { |
11343788 | 1093 | dTHR; |
a0d0e21e LW |
1094 | char tmpbuf[64]; |
1095 | char *d = tmpbuf; | |
1096 | char *s; | |
dc28f22b GA |
1097 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; |
1098 | /* each *s can expand to 4 chars + "...\0", | |
1099 | i.e. need room for 8 chars */ | |
a0d0e21e | 1100 | |
dc28f22b | 1101 | for (s = SvPVX(sv); *s && d < limit; s++) { |
bbce6d69 | 1102 | int ch = *s & 0xFF; |
1103 | if (ch & 128 && !isPRINT_LC(ch)) { | |
a0d0e21e LW |
1104 | *d++ = 'M'; |
1105 | *d++ = '-'; | |
1106 | ch &= 127; | |
1107 | } | |
bbce6d69 | 1108 | if (ch == '\n') { |
1109 | *d++ = '\\'; | |
1110 | *d++ = 'n'; | |
1111 | } | |
1112 | else if (ch == '\r') { | |
1113 | *d++ = '\\'; | |
1114 | *d++ = 'r'; | |
1115 | } | |
1116 | else if (ch == '\f') { | |
1117 | *d++ = '\\'; | |
1118 | *d++ = 'f'; | |
1119 | } | |
1120 | else if (ch == '\\') { | |
1121 | *d++ = '\\'; | |
1122 | *d++ = '\\'; | |
1123 | } | |
1124 | else if (isPRINT_LC(ch)) | |
a0d0e21e LW |
1125 | *d++ = ch; |
1126 | else { | |
1127 | *d++ = '^'; | |
bbce6d69 | 1128 | *d++ = toCTRL(ch); |
a0d0e21e LW |
1129 | } |
1130 | } | |
1131 | if (*s) { | |
1132 | *d++ = '.'; | |
1133 | *d++ = '.'; | |
1134 | *d++ = '.'; | |
1135 | } | |
1136 | *d = '\0'; | |
1137 | ||
533c011a | 1138 | if (PL_op) |
599cee73 | 1139 | warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric in %s", tmpbuf, |
22c35a8c | 1140 | PL_op_name[PL_op->op_type]); |
a0d0e21e | 1141 | else |
599cee73 | 1142 | warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric", tmpbuf); |
a0d0e21e LW |
1143 | } |
1144 | ||
25da4f38 IZ |
1145 | /* the number can be converted to _integer_ with atol() */ |
1146 | #define IS_NUMBER_TO_INT_BY_ATOL 0x01 | |
1147 | #define IS_NUMBER_TO_INT_BY_ATOF 0x02 /* atol() may be != atof() */ | |
1148 | #define IS_NUMBER_NOT_IV 0x04 /* (IV)atof() may be != atof() */ | |
1149 | #define IS_NUMBER_NEG 0x08 /* not good to cache UV */ | |
1150 | ||
1151 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1152 | until proven guilty, assume that things are not that bad... */ | |
1153 | ||
a0d0e21e | 1154 | IV |
8ac85365 | 1155 | sv_2iv(register SV *sv) |
79072805 LW |
1156 | { |
1157 | if (!sv) | |
1158 | return 0; | |
8990e307 | 1159 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1160 | mg_get(sv); |
1161 | if (SvIOKp(sv)) | |
1162 | return SvIVX(sv); | |
748a9306 | 1163 | if (SvNOKp(sv)) { |
25da4f38 | 1164 | return I_V(SvNVX(sv)); |
748a9306 | 1165 | } |
36477c24 | 1166 | if (SvPOKp(sv) && SvLEN(sv)) |
1167 | return asIV(sv); | |
3fe9a6f1 | 1168 | if (!SvROK(sv)) { |
d008e5eb | 1169 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1170 | dTHR; |
d008e5eb | 1171 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1172 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1173 | } |
36477c24 | 1174 | return 0; |
3fe9a6f1 | 1175 | } |
463ee0b2 | 1176 | } |
ed6116ce | 1177 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 1178 | if (SvROK(sv)) { |
a0d0e21e LW |
1179 | SV* tmpstr; |
1180 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) | |
9e7bc3e8 | 1181 | return SvIV(tmpstr); |
a0d0e21e LW |
1182 | return (IV)SvRV(sv); |
1183 | } | |
ed6116ce | 1184 | if (SvREADONLY(sv)) { |
748a9306 | 1185 | if (SvNOKp(sv)) { |
25da4f38 | 1186 | return I_V(SvNVX(sv)); |
748a9306 | 1187 | } |
36477c24 | 1188 | if (SvPOKp(sv) && SvLEN(sv)) |
1189 | return asIV(sv); | |
d008e5eb GS |
1190 | { |
1191 | dTHR; | |
1192 | if (ckWARN(WARN_UNINITIALIZED)) | |
22c35a8c | 1193 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb | 1194 | } |
ed6116ce LW |
1195 | return 0; |
1196 | } | |
79072805 | 1197 | } |
25da4f38 IZ |
1198 | if (SvIOKp(sv)) { |
1199 | if (SvIsUV(sv)) { | |
1200 | return (IV)(SvUVX(sv)); | |
1201 | } | |
1202 | else { | |
1203 | return SvIVX(sv); | |
1204 | } | |
463ee0b2 | 1205 | } |
748a9306 | 1206 | if (SvNOKp(sv)) { |
25da4f38 IZ |
1207 | /* We can cache the IV/UV value even if it not good enough |
1208 | * to reconstruct NV, since the conversion to PV will prefer | |
1209 | * NV over IV/UV. XXXX 64-bit? | |
1210 | */ | |
1211 | ||
1212 | if (SvTYPE(sv) == SVt_NV) | |
1213 | sv_upgrade(sv, SVt_PVNV); | |
1214 | ||
a5f75d66 | 1215 | (void)SvIOK_on(sv); |
25da4f38 | 1216 | if (SvNVX(sv) < (double)IV_MAX + 0.5) |
748a9306 | 1217 | SvIVX(sv) = I_V(SvNVX(sv)); |
25da4f38 | 1218 | else { |
ff68c719 | 1219 | SvUVX(sv) = U_V(SvNVX(sv)); |
25da4f38 IZ |
1220 | SvIsUV_on(sv); |
1221 | ret_iv_max: | |
1222 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
1223 | "0x%lx 2iv(%lu => %ld) (as unsigned)\n", | |
1224 | (unsigned long)sv, | |
1225 | (unsigned long)SvUVX(sv), (long)(IV)SvUVX(sv))); | |
1226 | return (IV)SvUVX(sv); | |
1227 | } | |
748a9306 LW |
1228 | } |
1229 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
25da4f38 IZ |
1230 | I32 numtype = looks_like_number(sv); |
1231 | ||
1232 | /* We want to avoid a possible problem when we cache an IV which | |
1233 | may be later translated to an NV, and the resulting NV is not | |
1234 | the translation of the initial data. | |
1235 | ||
1236 | This means that if we cache such an IV, we need to cache the | |
1237 | NV as well. Moreover, we trade speed for space, and do not | |
1238 | cache the NV if not needed. | |
1239 | */ | |
1240 | if (numtype & IS_NUMBER_NOT_IV) { | |
1241 | /* May be not an integer. Need to cache NV if we cache IV | |
1242 | * - otherwise future conversion to NV will be wrong. */ | |
1243 | double d; | |
1244 | ||
1245 | SET_NUMERIC_STANDARD(); | |
1246 | d = atof(SvPVX(sv)); | |
1247 | ||
1248 | if (SvTYPE(sv) < SVt_PVNV) | |
1249 | sv_upgrade(sv, SVt_PVNV); | |
1250 | SvNVX(sv) = d; | |
1251 | (void)SvNOK_on(sv); | |
1252 | (void)SvIOK_on(sv); | |
1253 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
1254 | "0x%lx 2nv(%g)\n",(unsigned long)sv, | |
1255 | SvNVX(sv))); | |
1256 | if (SvNVX(sv) < (double)IV_MAX + 0.5) | |
1257 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1258 | else { | |
1259 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1260 | SvIsUV_on(sv); | |
1261 | goto ret_iv_max; | |
1262 | } | |
1263 | } | |
1264 | else if (numtype) { | |
1265 | /* The NV may be reconstructed from IV - safe to cache IV, | |
1266 | which may be calculated by atol(). */ | |
1267 | if (SvTYPE(sv) == SVt_PV) | |
1268 | sv_upgrade(sv, SVt_PVIV); | |
1269 | (void)SvIOK_on(sv); | |
1270 | SvIVX(sv) = atol(SvPVX(sv)); /* XXXX 64-bit? */ | |
1271 | } | |
1272 | else { /* Not a number. Cache 0. */ | |
1273 | dTHR; | |
1274 | ||
1275 | if (SvTYPE(sv) < SVt_PVIV) | |
1276 | sv_upgrade(sv, SVt_PVIV); | |
1277 | SvIVX(sv) = 0; | |
1278 | (void)SvIOK_on(sv); | |
1279 | if (ckWARN(WARN_NUMERIC)) | |
1280 | not_a_number(sv); | |
1281 | } | |
93a17b20 | 1282 | } |
79072805 | 1283 | else { |
11343788 | 1284 | dTHR; |
599cee73 | 1285 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
22c35a8c | 1286 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
25da4f38 IZ |
1287 | if (SvTYPE(sv) < SVt_IV) |
1288 | /* Typically the caller expects that sv_any is not NULL now. */ | |
1289 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 1290 | return 0; |
79072805 | 1291 | } |
760ac839 | 1292 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n", |
a0d0e21e | 1293 | (unsigned long)sv,(long)SvIVX(sv))); |
25da4f38 | 1294 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
1295 | } |
1296 | ||
ff68c719 | 1297 | UV |
8ac85365 | 1298 | sv_2uv(register SV *sv) |
ff68c719 | 1299 | { |
1300 | if (!sv) | |
1301 | return 0; | |
1302 | if (SvGMAGICAL(sv)) { | |
1303 | mg_get(sv); | |
1304 | if (SvIOKp(sv)) | |
1305 | return SvUVX(sv); | |
1306 | if (SvNOKp(sv)) | |
1307 | return U_V(SvNVX(sv)); | |
36477c24 | 1308 | if (SvPOKp(sv) && SvLEN(sv)) |
1309 | return asUV(sv); | |
3fe9a6f1 | 1310 | if (!SvROK(sv)) { |
d008e5eb | 1311 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1312 | dTHR; |
d008e5eb | 1313 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1314 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1315 | } |
36477c24 | 1316 | return 0; |
3fe9a6f1 | 1317 | } |
ff68c719 | 1318 | } |
1319 | if (SvTHINKFIRST(sv)) { | |
1320 | if (SvROK(sv)) { | |
ff68c719 | 1321 | SV* tmpstr; |
1322 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) | |
9e7bc3e8 | 1323 | return SvUV(tmpstr); |
ff68c719 | 1324 | return (UV)SvRV(sv); |
1325 | } | |
1326 | if (SvREADONLY(sv)) { | |
1327 | if (SvNOKp(sv)) { | |
1328 | return U_V(SvNVX(sv)); | |
1329 | } | |
36477c24 | 1330 | if (SvPOKp(sv) && SvLEN(sv)) |
1331 | return asUV(sv); | |
d008e5eb GS |
1332 | { |
1333 | dTHR; | |
1334 | if (ckWARN(WARN_UNINITIALIZED)) | |
22c35a8c | 1335 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb | 1336 | } |
ff68c719 | 1337 | return 0; |
1338 | } | |
1339 | } | |
25da4f38 IZ |
1340 | if (SvIOKp(sv)) { |
1341 | if (SvIsUV(sv)) { | |
1342 | return SvUVX(sv); | |
1343 | } | |
1344 | else { | |
1345 | return (UV)SvIVX(sv); | |
1346 | } | |
ff68c719 | 1347 | } |
1348 | if (SvNOKp(sv)) { | |
25da4f38 IZ |
1349 | /* We can cache the IV/UV value even if it not good enough |
1350 | * to reconstruct NV, since the conversion to PV will prefer | |
1351 | * NV over IV/UV. XXXX 64-bit? | |
1352 | */ | |
1353 | if (SvTYPE(sv) == SVt_NV) | |
1354 | sv_upgrade(sv, SVt_PVNV); | |
ff68c719 | 1355 | (void)SvIOK_on(sv); |
25da4f38 IZ |
1356 | if (SvNVX(sv) >= -0.5) { |
1357 | SvIsUV_on(sv); | |
1358 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1359 | } | |
1360 | else { | |
1361 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1362 | ret_zero: | |
1363 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
1364 | "0x%lx 2uv(%ld => %lu) (as signed)\n", | |
1365 | (unsigned long)sv,(long)SvIVX(sv), | |
1366 | (long)(UV)SvIVX(sv))); | |
1367 | return (UV)SvIVX(sv); | |
1368 | } | |
ff68c719 | 1369 | } |
1370 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
25da4f38 IZ |
1371 | I32 numtype = looks_like_number(sv); |
1372 | ||
1373 | /* We want to avoid a possible problem when we cache a UV which | |
1374 | may be later translated to an NV, and the resulting NV is not | |
1375 | the translation of the initial data. | |
1376 | ||
1377 | This means that if we cache such a UV, we need to cache the | |
1378 | NV as well. Moreover, we trade speed for space, and do not | |
1379 | cache the NV if not needed. | |
1380 | */ | |
1381 | if (numtype & IS_NUMBER_NOT_IV) { | |
1382 | /* May be not an integer. Need to cache NV if we cache IV | |
1383 | * - otherwise future conversion to NV will be wrong. */ | |
1384 | double d; | |
1385 | ||
1386 | SET_NUMERIC_STANDARD(); | |
1387 | d = atof(SvPVX(sv)); /* XXXX 64-bit? */ | |
1388 | ||
1389 | if (SvTYPE(sv) < SVt_PVNV) | |
1390 | sv_upgrade(sv, SVt_PVNV); | |
1391 | SvNVX(sv) = d; | |
1392 | (void)SvNOK_on(sv); | |
1393 | (void)SvIOK_on(sv); | |
1394 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
1395 | "0x%lx 2nv(%g)\n",(unsigned long)sv, | |
1396 | SvNVX(sv))); | |
1397 | if (SvNVX(sv) < -0.5) { | |
1398 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1399 | goto ret_zero; | |
1400 | } else { | |
1401 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1402 | SvIsUV_on(sv); | |
1403 | } | |
1404 | } | |
1405 | else if (numtype & IS_NUMBER_NEG) { | |
1406 | /* The NV may be reconstructed from IV - safe to cache IV, | |
1407 | which may be calculated by atol(). */ | |
1408 | if (SvTYPE(sv) == SVt_PV) | |
1409 | sv_upgrade(sv, SVt_PVIV); | |
1410 | (void)SvIOK_on(sv); | |
1411 | SvIVX(sv) = (IV)atol(SvPVX(sv)); /* XXXX 64-bit? */ | |
1412 | } | |
1413 | else if (numtype) { /* Non-negative */ | |
1414 | /* The NV may be reconstructed from UV - safe to cache UV, | |
1415 | which may be calculated by strtoul()/atol. */ | |
1416 | if (SvTYPE(sv) == SVt_PV) | |
1417 | sv_upgrade(sv, SVt_PVIV); | |
1418 | (void)SvIOK_on(sv); | |
1419 | (void)SvIsUV_on(sv); | |
1420 | #ifdef HAS_STRTOUL | |
1421 | SvUVX(sv) = strtoul(SvPVX(sv), Null(char**), 10); /* XXXX 64-bit? */ | |
1422 | #else /* no atou(), but we know the number fits into IV... */ | |
1423 | /* The only problem may be if it is negative... */ | |
1424 | SvUVX(sv) = (UV)atol(SvPVX(sv)); /* XXXX 64-bit? */ | |
1425 | #endif | |
1426 | } | |
1427 | else { /* Not a number. Cache 0. */ | |
1428 | dTHR; | |
1429 | ||
1430 | if (SvTYPE(sv) < SVt_PVIV) | |
1431 | sv_upgrade(sv, SVt_PVIV); | |
1432 | SvUVX(sv) = 0; /* We assume that 0s have the | |
1433 | same bitmap in IV and UV. */ | |
1434 | (void)SvIOK_on(sv); | |
1435 | (void)SvIsUV_on(sv); | |
1436 | if (ckWARN(WARN_NUMERIC)) | |
1437 | not_a_number(sv); | |
1438 | } | |
ff68c719 | 1439 | } |
1440 | else { | |
d008e5eb | 1441 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1442 | dTHR; |
d008e5eb | 1443 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1444 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1445 | } |
25da4f38 IZ |
1446 | if (SvTYPE(sv) < SVt_IV) |
1447 | /* Typically the caller expects that sv_any is not NULL now. */ | |
1448 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 1449 | return 0; |
1450 | } | |
25da4f38 | 1451 | |
ff68c719 | 1452 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n", |
1453 | (unsigned long)sv,SvUVX(sv))); | |
25da4f38 | 1454 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 1455 | } |
1456 | ||
79072805 | 1457 | double |
8ac85365 | 1458 | sv_2nv(register SV *sv) |
79072805 LW |
1459 | { |
1460 | if (!sv) | |
1461 | return 0.0; | |
8990e307 | 1462 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1463 | mg_get(sv); |
1464 | if (SvNOKp(sv)) | |
1465 | return SvNVX(sv); | |
a0d0e21e | 1466 | if (SvPOKp(sv) && SvLEN(sv)) { |
d008e5eb | 1467 | dTHR; |
599cee73 | 1468 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1469 | not_a_number(sv); |
36477c24 | 1470 | SET_NUMERIC_STANDARD(); |
463ee0b2 | 1471 | return atof(SvPVX(sv)); |
a0d0e21e | 1472 | } |
25da4f38 IZ |
1473 | if (SvIOKp(sv)) { |
1474 | if (SvIsUV(sv)) | |
1475 | return (double)SvUVX(sv); | |
1476 | else | |
1477 | return (double)SvIVX(sv); | |
1478 | } | |
16d20bd9 | 1479 | if (!SvROK(sv)) { |
d008e5eb | 1480 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1481 | dTHR; |
d008e5eb | 1482 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1483 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1484 | } |
16d20bd9 AD |
1485 | return 0; |
1486 | } | |
463ee0b2 | 1487 | } |
ed6116ce | 1488 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 1489 | if (SvROK(sv)) { |
a0d0e21e LW |
1490 | SV* tmpstr; |
1491 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) | |
9e7bc3e8 | 1492 | return SvNV(tmpstr); |
a0d0e21e LW |
1493 | return (double)(unsigned long)SvRV(sv); |
1494 | } | |
ed6116ce | 1495 | if (SvREADONLY(sv)) { |
d008e5eb | 1496 | dTHR; |
748a9306 | 1497 | if (SvPOKp(sv) && SvLEN(sv)) { |
599cee73 | 1498 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1499 | not_a_number(sv); |
36477c24 | 1500 | SET_NUMERIC_STANDARD(); |
ed6116ce | 1501 | return atof(SvPVX(sv)); |
a0d0e21e | 1502 | } |
25da4f38 IZ |
1503 | if (SvIOKp(sv)) { |
1504 | if (SvIsUV(sv)) | |
1505 | return (double)SvUVX(sv); | |
1506 | else | |
1507 | return (double)SvIVX(sv); | |
1508 | } | |
599cee73 | 1509 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c | 1510 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
ed6116ce LW |
1511 | return 0.0; |
1512 | } | |
79072805 LW |
1513 | } |
1514 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
1515 | if (SvTYPE(sv) == SVt_IV) |
1516 | sv_upgrade(sv, SVt_PVNV); | |
1517 | else | |
1518 | sv_upgrade(sv, SVt_NV); | |
36477c24 | 1519 | DEBUG_c(SET_NUMERIC_STANDARD()); |
bbce6d69 | 1520 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
1521 | "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv))); | |
79072805 LW |
1522 | } |
1523 | else if (SvTYPE(sv) < SVt_PVNV) | |
1524 | sv_upgrade(sv, SVt_PVNV); | |
748a9306 LW |
1525 | if (SvIOKp(sv) && |
1526 | (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) | |
93a17b20 | 1527 | { |
25da4f38 | 1528 | SvNVX(sv) = SvIsUV(sv) ? (double)SvUVX(sv) : (double)SvIVX(sv); |
93a17b20 | 1529 | } |
748a9306 | 1530 | else if (SvPOKp(sv) && SvLEN(sv)) { |
d008e5eb | 1531 | dTHR; |
599cee73 | 1532 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1533 | not_a_number(sv); |
36477c24 | 1534 | SET_NUMERIC_STANDARD(); |
463ee0b2 | 1535 | SvNVX(sv) = atof(SvPVX(sv)); |
93a17b20 | 1536 | } |
79072805 | 1537 | else { |
11343788 | 1538 | dTHR; |
599cee73 | 1539 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
22c35a8c | 1540 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
25da4f38 IZ |
1541 | if (SvTYPE(sv) < SVt_NV) |
1542 | /* Typically the caller expects that sv_any is not NULL now. */ | |
1543 | sv_upgrade(sv, SVt_NV); | |
a0d0e21e | 1544 | return 0.0; |
79072805 LW |
1545 | } |
1546 | SvNOK_on(sv); | |
36477c24 | 1547 | DEBUG_c(SET_NUMERIC_STANDARD()); |
bbce6d69 | 1548 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
1549 | "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv))); | |
463ee0b2 | 1550 | return SvNVX(sv); |
79072805 LW |
1551 | } |
1552 | ||
76e3520e | 1553 | STATIC IV |
8ac85365 | 1554 | asIV(SV *sv) |
36477c24 | 1555 | { |
1556 | I32 numtype = looks_like_number(sv); | |
1557 | double d; | |
1558 | ||
25da4f38 IZ |
1559 | if (numtype & IS_NUMBER_TO_INT_BY_ATOL) |
1560 | return atol(SvPVX(sv)); /* XXXX 64-bit? */ | |
d008e5eb GS |
1561 | if (!numtype) { |
1562 | dTHR; | |
1563 | if (ckWARN(WARN_NUMERIC)) | |
1564 | not_a_number(sv); | |
1565 | } | |
36477c24 | 1566 | SET_NUMERIC_STANDARD(); |
1567 | d = atof(SvPVX(sv)); | |
25da4f38 | 1568 | return I_V(d); |
36477c24 | 1569 | } |
1570 | ||
76e3520e | 1571 | STATIC UV |
8ac85365 | 1572 | asUV(SV *sv) |
36477c24 | 1573 | { |
1574 | I32 numtype = looks_like_number(sv); | |
1575 | ||
84902520 | 1576 | #ifdef HAS_STRTOUL |
25da4f38 | 1577 | if (numtype & IS_NUMBER_TO_INT_BY_ATOL) |
84902520 TB |
1578 | return strtoul(SvPVX(sv), Null(char**), 10); |
1579 | #endif | |
d008e5eb GS |
1580 | if (!numtype) { |
1581 | dTHR; | |
1582 | if (ckWARN(WARN_NUMERIC)) | |
1583 | not_a_number(sv); | |
1584 | } | |
36477c24 | 1585 | SET_NUMERIC_STANDARD(); |
1586 | return U_V(atof(SvPVX(sv))); | |
1587 | } | |
1588 | ||
25da4f38 IZ |
1589 | /* |
1590 | * Returns a combination of (advisory only - can get false negatives) | |
1591 | * IS_NUMBER_TO_INT_BY_ATOL, IS_NUMBER_TO_INT_BY_ATOF, IS_NUMBER_NOT_IV, | |
1592 | * IS_NUMBER_NEG | |
1593 | * 0 if does not look like number. | |
1594 | * | |
1595 | * In fact possible values are 0 and | |
1596 | * IS_NUMBER_TO_INT_BY_ATOL 123 | |
1597 | * IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV 123.1 | |
1598 | * IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV 123e0 | |
1599 | * with a possible addition of IS_NUMBER_NEG. | |
1600 | */ | |
1601 | ||
36477c24 | 1602 | I32 |
8ac85365 | 1603 | looks_like_number(SV *sv) |
36477c24 | 1604 | { |
25da4f38 IZ |
1605 | /* XXXX 64-bit? It may be not IS_NUMBER_TO_INT_BY_ATOL, but |
1606 | * using atof() may lose precision. */ | |
36477c24 | 1607 | register char *s; |
1608 | register char *send; | |
1609 | register char *sbegin; | |
25da4f38 IZ |
1610 | register char *nbegin; |
1611 | I32 numtype = 0; | |
36477c24 | 1612 | STRLEN len; |
1613 | ||
1614 | if (SvPOK(sv)) { | |
1615 | sbegin = SvPVX(sv); | |
1616 | len = SvCUR(sv); | |
1617 | } | |
1618 | else if (SvPOKp(sv)) | |
1619 | sbegin = SvPV(sv, len); | |
1620 | else | |
1621 | return 1; | |
1622 | send = sbegin + len; | |
1623 | ||
1624 | s = sbegin; | |
1625 | while (isSPACE(*s)) | |
1626 | s++; | |
25da4f38 IZ |
1627 | if (*s == '-') { |
1628 | s++; | |
1629 | numtype = IS_NUMBER_NEG; | |
1630 | } | |
1631 | else if (*s == '+') | |
36477c24 | 1632 | s++; |
ff0cee69 | 1633 | |
25da4f38 IZ |
1634 | nbegin = s; |
1635 | /* | |
1636 | * we return 1 if the number can be converted to _integer_ with atol() | |
1637 | * and 2 if you need (int)atof(). | |
1638 | */ | |
1639 | ||
ff0cee69 | 1640 | /* next must be digit or '.' */ |
1641 | if (isDIGIT(*s)) { | |
1642 | do { | |
1643 | s++; | |
1644 | } while (isDIGIT(*s)); | |
25da4f38 IZ |
1645 | |
1646 | if (s - nbegin >= TYPE_DIGITS(IV)) /* Cannot cache ato[ul]() */ | |
1647 | numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV; | |
1648 | else | |
1649 | numtype |= IS_NUMBER_TO_INT_BY_ATOL; | |
1650 | ||
ff0cee69 | 1651 | if (*s == '.') { |
1652 | s++; | |
25da4f38 | 1653 | numtype |= IS_NUMBER_NOT_IV; |
ff0cee69 | 1654 | while (isDIGIT(*s)) /* optional digits after "." */ |
1655 | s++; | |
1656 | } | |
36477c24 | 1657 | } |
ff0cee69 | 1658 | else if (*s == '.') { |
1659 | s++; | |
25da4f38 | 1660 | numtype |= IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV; |
ff0cee69 | 1661 | /* no digits before '.' means we need digits after it */ |
1662 | if (isDIGIT(*s)) { | |
1663 | do { | |
1664 | s++; | |
1665 | } while (isDIGIT(*s)); | |
1666 | } | |
1667 | else | |
1668 | return 0; | |
1669 | } | |
1670 | else | |
1671 | return 0; | |
1672 | ||
ff0cee69 | 1673 | /* we can have an optional exponent part */ |
36477c24 | 1674 | if (*s == 'e' || *s == 'E') { |
25da4f38 IZ |
1675 | numtype &= ~IS_NUMBER_NEG; |
1676 | numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV; | |
36477c24 | 1677 | s++; |
1678 | if (*s == '+' || *s == '-') | |
1679 | s++; | |
ff0cee69 | 1680 | if (isDIGIT(*s)) { |
1681 | do { | |
1682 | s++; | |
1683 | } while (isDIGIT(*s)); | |
1684 | } | |
1685 | else | |
1686 | return 0; | |
36477c24 | 1687 | } |
1688 | while (isSPACE(*s)) | |
1689 | s++; | |
1690 | if (s >= send) | |
1691 | return numtype; | |
1692 | if (len == 10 && memEQ(sbegin, "0 but true", 10)) | |
25da4f38 | 1693 | return IS_NUMBER_TO_INT_BY_ATOL; |
36477c24 | 1694 | return 0; |
1695 | } | |
1696 | ||
79072805 | 1697 | char * |
1fa8b10d JD |
1698 | sv_2pv_nolen(register SV *sv) |
1699 | { | |
1700 | STRLEN n_a; | |
1701 | return sv_2pv(sv, &n_a); | |
1702 | } | |
1703 | ||
25da4f38 IZ |
1704 | /* We assume that buf is at least TYPE_CHARS(UV) long. */ |
1705 | STATIC char * | |
1706 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) | |
1707 | { | |
1708 | STRLEN len; | |
1709 | char *ptr = buf + TYPE_CHARS(UV); | |
1710 | char *ebuf = ptr; | |
1711 | int sign; | |
1712 | char *p; | |
1713 | ||
1714 | if (is_uv) | |
1715 | sign = 0; | |
1716 | else if (iv >= 0) { | |
1717 | uv = iv; | |
1718 | sign = 0; | |
1719 | } else { | |
1720 | uv = -iv; | |
1721 | sign = 1; | |
1722 | } | |
1723 | do { | |
1724 | *--ptr = '0' + (uv % 10); | |
1725 | } while (uv /= 10); | |
1726 | if (sign) | |
1727 | *--ptr = '-'; | |
1728 | *peob = ebuf; | |
1729 | return ptr; | |
1730 | } | |
1731 | ||
1fa8b10d | 1732 | char * |
8ac85365 | 1733 | sv_2pv(register SV *sv, STRLEN *lp) |
79072805 LW |
1734 | { |
1735 | register char *s; | |
1736 | int olderrno; | |
46fc3d4c | 1737 | SV *tsv; |
25da4f38 IZ |
1738 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
1739 | char *tmpbuf = tbuf; | |
79072805 | 1740 | |
463ee0b2 LW |
1741 | if (!sv) { |
1742 | *lp = 0; | |
1743 | return ""; | |
1744 | } | |
8990e307 | 1745 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1746 | mg_get(sv); |
1747 | if (SvPOKp(sv)) { | |
1748 | *lp = SvCUR(sv); | |
1749 | return SvPVX(sv); | |
1750 | } | |
25da4f38 IZ |
1751 | if (SvIOKp(sv)) { /* XXXX 64-bit? */ |
1752 | if (SvIsUV(sv)) | |
1753 | (void)sprintf(tmpbuf,"%lu",(unsigned long)SvUVX(sv)); | |
1754 | else | |
1755 | (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv)); | |
46fc3d4c | 1756 | tsv = Nullsv; |
a0d0e21e | 1757 | goto tokensave; |
463ee0b2 LW |
1758 | } |
1759 | if (SvNOKp(sv)) { | |
36477c24 | 1760 | SET_NUMERIC_STANDARD(); |
96827780 | 1761 | Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf); |
46fc3d4c | 1762 | tsv = Nullsv; |
a0d0e21e | 1763 | goto tokensave; |
463ee0b2 | 1764 | } |
16d20bd9 | 1765 | if (!SvROK(sv)) { |
d008e5eb | 1766 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1767 | dTHR; |
d008e5eb | 1768 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1769 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1770 | } |
16d20bd9 AD |
1771 | *lp = 0; |
1772 | return ""; | |
1773 | } | |
463ee0b2 | 1774 | } |
ed6116ce LW |
1775 | if (SvTHINKFIRST(sv)) { |
1776 | if (SvROK(sv)) { | |
a0d0e21e LW |
1777 | SV* tmpstr; |
1778 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string))) | |
9e7bc3e8 | 1779 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
1780 | sv = (SV*)SvRV(sv); |
1781 | if (!sv) | |
1782 | s = "NULLREF"; | |
1783 | else { | |
f9277f47 IZ |
1784 | MAGIC *mg; |
1785 | ||
ed6116ce | 1786 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
1787 | case SVt_PVMG: |
1788 | if ( ((SvFLAGS(sv) & | |
1789 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) | |
3149a8e4 | 1790 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 1791 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
f9277f47 | 1792 | && (mg = mg_find(sv, 'r'))) { |
5c0ca799 | 1793 | dTHR; |
2cd61cdb | 1794 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 1795 | |
2cd61cdb | 1796 | if (!mg->mg_ptr) { |
8782bef2 GB |
1797 | char *fptr = "msix"; |
1798 | char reflags[6]; | |
1799 | char ch; | |
1800 | int left = 0; | |
1801 | int right = 4; | |
1802 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
1803 | ||
1804 | while(ch = *fptr++) { | |
1805 | if(reganch & 1) { | |
1806 | reflags[left++] = ch; | |
1807 | } | |
1808 | else { | |
1809 | reflags[right--] = ch; | |
1810 | } | |
1811 | reganch >>= 1; | |
1812 | } | |
1813 | if(left != 4) { | |
1814 | reflags[left] = '-'; | |
1815 | left = 5; | |
1816 | } | |
1817 | ||
1818 | mg->mg_len = re->prelen + 4 + left; | |
1819 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
1820 | Copy("(?", mg->mg_ptr, 2, char); | |
1821 | Copy(reflags, mg->mg_ptr+2, left, char); | |
1822 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
1823 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
1824 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
1825 | mg->mg_ptr[mg->mg_len] = 0; | |
1826 | } | |
3280af22 | 1827 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
1828 | *lp = mg->mg_len; |
1829 | return mg->mg_ptr; | |
f9277f47 IZ |
1830 | } |
1831 | /* Fall through */ | |
ed6116ce LW |
1832 | case SVt_NULL: |
1833 | case SVt_IV: | |
1834 | case SVt_NV: | |
1835 | case SVt_RV: | |
1836 | case SVt_PV: | |
1837 | case SVt_PVIV: | |
1838 | case SVt_PVNV: | |
f9277f47 | 1839 | case SVt_PVBM: s = "SCALAR"; break; |
ed6116ce LW |
1840 | case SVt_PVLV: s = "LVALUE"; break; |
1841 | case SVt_PVAV: s = "ARRAY"; break; | |
1842 | case SVt_PVHV: s = "HASH"; break; | |
1843 | case SVt_PVCV: s = "CODE"; break; | |
1844 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 1845 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 1846 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
1847 | default: s = "UNKNOWN"; break; |
1848 | } | |
46fc3d4c | 1849 | tsv = NEWSV(0,0); |
ed6116ce | 1850 | if (SvOBJECT(sv)) |
46fc3d4c | 1851 | sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); |
ed6116ce | 1852 | else |
46fc3d4c | 1853 | sv_setpv(tsv, s); |
25da4f38 | 1854 | /* XXXX 64-bit? */ |
46fc3d4c | 1855 | sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv); |
a0d0e21e | 1856 | goto tokensaveref; |
463ee0b2 | 1857 | } |
ed6116ce LW |
1858 | *lp = strlen(s); |
1859 | return s; | |
79072805 | 1860 | } |
ed6116ce | 1861 | if (SvREADONLY(sv)) { |
25da4f38 IZ |
1862 | if (SvNOKp(sv)) { /* See note in sv_2uv() */ |
1863 | /* XXXX 64-bit? IV may have better precision... */ | |
36477c24 | 1864 | SET_NUMERIC_STANDARD(); |
96827780 | 1865 | Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf); |
46fc3d4c | 1866 | tsv = Nullsv; |
a0d0e21e | 1867 | goto tokensave; |
ed6116ce | 1868 | } |
8bb9dbe4 | 1869 | if (SvIOKp(sv)) { |
25da4f38 IZ |
1870 | char *ebuf; |
1871 | ||
1872 | if (SvIsUV(sv)) | |
1873 | tmpbuf = uiv_2buf(tbuf, 0, SvUVX(sv), 1, &ebuf); | |
1874 | else | |
1875 | tmpbuf = uiv_2buf(tbuf, SvIVX(sv), 0, 0, &ebuf); | |
1876 | *ebuf = 0; | |
46fc3d4c | 1877 | tsv = Nullsv; |
8bb9dbe4 LW |
1878 | goto tokensave; |
1879 | } | |
d008e5eb GS |
1880 | { |
1881 | dTHR; | |
1882 | if (ckWARN(WARN_UNINITIALIZED)) | |
22c35a8c | 1883 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb | 1884 | } |
ed6116ce LW |
1885 | *lp = 0; |
1886 | return ""; | |
79072805 | 1887 | } |
79072805 | 1888 | } |
25da4f38 IZ |
1889 | if (SvNOKp(sv)) { /* See note in sv_2uv() */ |
1890 | /* XXXX 64-bit? IV may have better precision... */ | |
79072805 LW |
1891 | if (SvTYPE(sv) < SVt_PVNV) |
1892 | sv_upgrade(sv, SVt_PVNV); | |
1893 | SvGROW(sv, 28); | |
463ee0b2 | 1894 | s = SvPVX(sv); |
79072805 | 1895 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 1896 | #ifdef apollo |
463ee0b2 | 1897 | if (SvNVX(sv) == 0.0) |
79072805 LW |
1898 | (void)strcpy(s,"0"); |
1899 | else | |
1900 | #endif /*apollo*/ | |
bbce6d69 | 1901 | { |
36477c24 | 1902 | SET_NUMERIC_STANDARD(); |
a0d0e21e | 1903 | Gconvert(SvNVX(sv), DBL_DIG, 0, s); |
bbce6d69 | 1904 | } |
79072805 | 1905 | errno = olderrno; |
a0d0e21e LW |
1906 | #ifdef FIXNEGATIVEZERO |
1907 | if (*s == '-' && s[1] == '0' && !s[2]) | |
1908 | strcpy(s,"0"); | |
1909 | #endif | |
79072805 LW |
1910 | while (*s) s++; |
1911 | #ifdef hcx | |
1912 | if (s[-1] == '.') | |
46fc3d4c | 1913 | *--s = '\0'; |
79072805 LW |
1914 | #endif |
1915 | } | |
748a9306 | 1916 | else if (SvIOKp(sv)) { |
25da4f38 IZ |
1917 | U32 isIOK = SvIOK(sv); |
1918 | char buf[TYPE_CHARS(UV)]; | |
1919 | char *ebuf, *ptr; | |
1920 | ||
79072805 LW |
1921 | if (SvTYPE(sv) < SVt_PVIV) |
1922 | sv_upgrade(sv, SVt_PVIV); | |
25da4f38 IZ |
1923 | if (SvIsUV(sv)) { |
1924 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
1925 | sv_setpvn(sv, ptr, ebuf - ptr); | |
1926 | SvIsUV_on(sv); | |
1927 | } | |
1928 | else { | |
1929 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
1930 | sv_setpvn(sv, ptr, ebuf - ptr); | |
1931 | } | |
46fc3d4c | 1932 | s = SvEND(sv); |
25da4f38 | 1933 | if (isIOK) |
64f14228 GA |
1934 | SvIOK_on(sv); |
1935 | else | |
1936 | SvIOKp_on(sv); | |
79072805 LW |
1937 | } |
1938 | else { | |
11343788 | 1939 | dTHR; |
599cee73 | 1940 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
22c35a8c | 1941 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
a0d0e21e | 1942 | *lp = 0; |
25da4f38 IZ |
1943 | if (SvTYPE(sv) < SVt_PV) |
1944 | /* Typically the caller expects that sv_any is not NULL now. */ | |
1945 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 1946 | return ""; |
79072805 | 1947 | } |
463ee0b2 LW |
1948 | *lp = s - SvPVX(sv); |
1949 | SvCUR_set(sv, *lp); | |
79072805 | 1950 | SvPOK_on(sv); |
760ac839 | 1951 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv))); |
463ee0b2 | 1952 | return SvPVX(sv); |
a0d0e21e LW |
1953 | |
1954 | tokensave: | |
1955 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
1956 | /* Sneaky stuff here */ | |
1957 | ||
1958 | tokensaveref: | |
46fc3d4c | 1959 | if (!tsv) |
96827780 | 1960 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 1961 | sv_2mortal(tsv); |
1962 | *lp = SvCUR(tsv); | |
1963 | return SvPVX(tsv); | |
a0d0e21e LW |
1964 | } |
1965 | else { | |
1966 | STRLEN len; | |
46fc3d4c | 1967 | char *t; |
1968 | ||
1969 | if (tsv) { | |
1970 | sv_2mortal(tsv); | |
1971 | t = SvPVX(tsv); | |
1972 | len = SvCUR(tsv); | |
1973 | } | |
1974 | else { | |
96827780 MB |
1975 | t = tmpbuf; |
1976 | len = strlen(tmpbuf); | |
46fc3d4c | 1977 | } |
a0d0e21e | 1978 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 1979 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
1980 | t = "0"; | |
1981 | len = 1; | |
1982 | } | |
a0d0e21e LW |
1983 | #endif |
1984 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 1985 | *lp = len; |
a0d0e21e LW |
1986 | s = SvGROW(sv, len + 1); |
1987 | SvCUR_set(sv, len); | |
46fc3d4c | 1988 | (void)strcpy(s, t); |
6bf554b4 | 1989 | SvPOKp_on(sv); |
a0d0e21e LW |
1990 | return s; |
1991 | } | |
463ee0b2 LW |
1992 | } |
1993 | ||
1994 | /* This function is only called on magical items */ | |
1995 | bool | |
8ac85365 | 1996 | sv_2bool(register SV *sv) |
463ee0b2 | 1997 | { |
8990e307 | 1998 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
1999 | mg_get(sv); |
2000 | ||
a0d0e21e LW |
2001 | if (!SvOK(sv)) |
2002 | return 0; | |
2003 | if (SvROK(sv)) { | |
11343788 | 2004 | dTHR; |
a0d0e21e LW |
2005 | SV* tmpsv; |
2006 | if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) | |
9e7bc3e8 | 2007 | return SvTRUE(tmpsv); |
a0d0e21e LW |
2008 | return SvRV(sv) != 0; |
2009 | } | |
463ee0b2 | 2010 | if (SvPOKp(sv)) { |
11343788 MB |
2011 | register XPV* Xpvtmp; |
2012 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
2013 | (*Xpvtmp->xpv_pv > '0' || | |
2014 | Xpvtmp->xpv_cur > 1 || | |
2015 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
2016 | return 1; |
2017 | else | |
2018 | return 0; | |
2019 | } | |
2020 | else { | |
2021 | if (SvIOKp(sv)) | |
2022 | return SvIVX(sv) != 0; | |
2023 | else { | |
2024 | if (SvNOKp(sv)) | |
2025 | return SvNVX(sv) != 0.0; | |
2026 | else | |
2027 | return FALSE; | |
2028 | } | |
2029 | } | |
79072805 LW |
2030 | } |
2031 | ||
2032 | /* Note: sv_setsv() should not be called with a source string that needs | |
463ee0b2 | 2033 | * to be reused, since it may destroy the source string if it is marked |
79072805 LW |
2034 | * as temporary. |
2035 | */ | |
2036 | ||
2037 | void | |
8ac85365 | 2038 | sv_setsv(SV *dstr, register SV *sstr) |
79072805 | 2039 | { |
11343788 | 2040 | dTHR; |
8990e307 LW |
2041 | register U32 sflags; |
2042 | register int dtype; | |
2043 | register int stype; | |
463ee0b2 | 2044 | |
79072805 LW |
2045 | if (sstr == dstr) |
2046 | return; | |
2213622d | 2047 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 2048 | if (!sstr) |
3280af22 | 2049 | sstr = &PL_sv_undef; |
8990e307 LW |
2050 | stype = SvTYPE(sstr); |
2051 | dtype = SvTYPE(dstr); | |
79072805 | 2052 | |
a0d0e21e | 2053 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 2054 | |
463ee0b2 | 2055 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 2056 | |
8990e307 | 2057 | switch (stype) { |
79072805 | 2058 | case SVt_NULL: |
aece5585 | 2059 | undef_sstr: |
20408e3c GS |
2060 | if (dtype != SVt_PVGV) { |
2061 | (void)SvOK_off(dstr); | |
2062 | return; | |
2063 | } | |
2064 | break; | |
463ee0b2 | 2065 | case SVt_IV: |
aece5585 GA |
2066 | if (SvIOK(sstr)) { |
2067 | switch (dtype) { | |
2068 | case SVt_NULL: | |
8990e307 | 2069 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
2070 | break; |
2071 | case SVt_NV: | |
8990e307 | 2072 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
2073 | break; |
2074 | case SVt_RV: | |
2075 | case SVt_PV: | |
a0d0e21e | 2076 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
2077 | break; |
2078 | } | |
2079 | (void)SvIOK_only(dstr); | |
2080 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
2081 | if (SvIsUV(sstr)) |
2082 | SvIsUV_on(dstr); | |
aece5585 GA |
2083 | SvTAINT(dstr); |
2084 | return; | |
8990e307 | 2085 | } |
aece5585 GA |
2086 | goto undef_sstr; |
2087 | ||
463ee0b2 | 2088 | case SVt_NV: |
aece5585 GA |
2089 | if (SvNOK(sstr)) { |
2090 | switch (dtype) { | |
2091 | case SVt_NULL: | |
2092 | case SVt_IV: | |
8990e307 | 2093 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
2094 | break; |
2095 | case SVt_RV: | |
2096 | case SVt_PV: | |
2097 | case SVt_PVIV: | |
a0d0e21e | 2098 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
2099 | break; |
2100 | } | |
2101 | SvNVX(dstr) = SvNVX(sstr); | |
2102 | (void)SvNOK_only(dstr); | |
2103 | SvTAINT(dstr); | |
2104 | return; | |
8990e307 | 2105 | } |
aece5585 GA |
2106 | goto undef_sstr; |
2107 | ||
ed6116ce | 2108 | case SVt_RV: |
8990e307 | 2109 | if (dtype < SVt_RV) |
ed6116ce | 2110 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 2111 | else if (dtype == SVt_PVGV && |
2112 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
2113 | sstr = SvRV(sstr); | |
a5f75d66 | 2114 | if (sstr == dstr) { |
3280af22 | 2115 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 AD |
2116 | GvIMPORTED_on(dstr); |
2117 | GvMULTI_on(dstr); | |
2118 | return; | |
2119 | } | |
c07a80fd | 2120 | goto glob_assign; |
2121 | } | |
ed6116ce | 2122 | break; |
463ee0b2 | 2123 | case SVt_PV: |
fc36a67e | 2124 | case SVt_PVFM: |
8990e307 | 2125 | if (dtype < SVt_PV) |
463ee0b2 | 2126 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
2127 | break; |
2128 | case SVt_PVIV: | |
8990e307 | 2129 | if (dtype < SVt_PVIV) |
463ee0b2 | 2130 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
2131 | break; |
2132 | case SVt_PVNV: | |
8990e307 | 2133 | if (dtype < SVt_PVNV) |
463ee0b2 | 2134 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 2135 | break; |
4633a7c4 LW |
2136 | case SVt_PVAV: |
2137 | case SVt_PVHV: | |
2138 | case SVt_PVCV: | |
4633a7c4 | 2139 | case SVt_PVIO: |
533c011a | 2140 | if (PL_op) |
4633a7c4 | 2141 | croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
22c35a8c | 2142 | PL_op_name[PL_op->op_type]); |
4633a7c4 LW |
2143 | else |
2144 | croak("Bizarre copy of %s", sv_reftype(sstr, 0)); | |
2145 | break; | |
2146 | ||
79072805 | 2147 | case SVt_PVGV: |
8990e307 | 2148 | if (dtype <= SVt_PVGV) { |
c07a80fd | 2149 | glob_assign: |
a5f75d66 | 2150 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
2151 | char *name = GvNAME(sstr); |
2152 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 2153 | sv_upgrade(dstr, SVt_PVGV); |
a0d0e21e | 2154 | sv_magic(dstr, dstr, '*', name, len); |
85aff577 | 2155 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
2156 | GvNAME(dstr) = savepvn(name, len); |
2157 | GvNAMELEN(dstr) = len; | |
2158 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
2159 | } | |
7bac28a0 | 2160 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
2161 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
2162 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
7bac28a0 | 2163 | croak("Can't redefine active sort subroutine %s", |
2164 | GvNAME(dstr)); | |
a0d0e21e | 2165 | (void)SvOK_off(dstr); |
a5f75d66 | 2166 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 2167 | gp_free((GV*)dstr); |
79072805 | 2168 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
8990e307 | 2169 | SvTAINT(dstr); |
3280af22 | 2170 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 AD |
2171 | GvIMPORTED_on(dstr); |
2172 | GvMULTI_on(dstr); | |
79072805 LW |
2173 | return; |
2174 | } | |
2175 | /* FALL THROUGH */ | |
2176 | ||
2177 | default: | |
973f89ab CS |
2178 | if (SvGMAGICAL(sstr)) { |
2179 | mg_get(sstr); | |
2180 | if (SvTYPE(sstr) != stype) { | |
2181 | stype = SvTYPE(sstr); | |
2182 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
2183 | goto glob_assign; | |
2184 | } | |
2185 | } | |
ded42b9f | 2186 | if (stype == SVt_PVLV) |
6fc92669 | 2187 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 2188 | else |
6fc92669 | 2189 | (void)SvUPGRADE(dstr, stype); |
79072805 LW |
2190 | } |
2191 | ||
8990e307 LW |
2192 | sflags = SvFLAGS(sstr); |
2193 | ||
2194 | if (sflags & SVf_ROK) { | |
2195 | if (dtype >= SVt_PV) { | |
2196 | if (dtype == SVt_PVGV) { | |
2197 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
2198 | SV *dref = 0; | |
a5f75d66 | 2199 | int intro = GvINTRO(dstr); |
a0d0e21e LW |
2200 | |
2201 | if (intro) { | |
2202 | GP *gp; | |
2203 | GvGP(dstr)->gp_refcnt--; | |
a5f75d66 | 2204 | GvINTRO_off(dstr); /* one-shot flag */ |
a0d0e21e | 2205 | Newz(602,gp, 1, GP); |
44a8e56a | 2206 | GvGP(dstr) = gp_ref(gp); |
a0d0e21e | 2207 | GvSV(dstr) = NEWSV(72,0); |
3280af22 | 2208 | GvLINE(dstr) = PL_curcop->cop_line; |
1edc1566 | 2209 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 2210 | } |
a5f75d66 | 2211 | GvMULTI_on(dstr); |
8990e307 LW |
2212 | switch (SvTYPE(sref)) { |
2213 | case SVt_PVAV: | |
a0d0e21e LW |
2214 | if (intro) |
2215 | SAVESPTR(GvAV(dstr)); | |
2216 | else | |
2217 | dref = (SV*)GvAV(dstr); | |
8990e307 | 2218 | GvAV(dstr) = (AV*)sref; |
3280af22 | 2219 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 2220 | GvIMPORTED_AV_on(dstr); |
8990e307 LW |
2221 | break; |
2222 | case SVt_PVHV: | |
a0d0e21e LW |
2223 | if (intro) |
2224 | SAVESPTR(GvHV(dstr)); | |
2225 | else | |
2226 | dref = (SV*)GvHV(dstr); | |
8990e307 | 2227 | GvHV(dstr) = (HV*)sref; |
3280af22 | 2228 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 2229 | GvIMPORTED_HV_on(dstr); |
8990e307 LW |
2230 | break; |
2231 | case SVt_PVCV: | |
8ebc5c01 | 2232 | if (intro) { |
2233 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
2234 | SvREFCNT_dec(GvCV(dstr)); | |
2235 | GvCV(dstr) = Nullcv; | |
68dc0745 | 2236 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 2237 | PL_sub_generation++; |
8ebc5c01 | 2238 | } |
a0d0e21e | 2239 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 2240 | } |
68dc0745 | 2241 | else |
2242 | dref = (SV*)GvCV(dstr); | |
2243 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 2244 | CV* cv = GvCV(dstr); |
4633a7c4 | 2245 | if (cv) { |
68dc0745 | 2246 | if (!GvCVGEN((GV*)dstr) && |
2247 | (CvROOT(cv) || CvXSUB(cv))) | |
2248 | { | |
fe5e78ed GS |
2249 | SV *const_sv = cv_const_sv(cv); |
2250 | bool const_changed = TRUE; | |
2251 | if(const_sv) | |
2252 | const_changed = sv_cmp(const_sv, | |
2253 | op_const_sv(CvSTART((CV*)sref), | |
2254 | Nullcv)); | |
7bac28a0 | 2255 | /* ahem, death to those who redefine |
2256 | * active sort subs */ | |
3280af22 NIS |
2257 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
2258 | PL_sortcop == CvSTART(cv)) | |
7bac28a0 | 2259 | croak( |
2260 | "Can't redefine active sort subroutine %s", | |
2261 | GvENAME((GV*)dstr)); | |
599cee73 | 2262 | if (ckWARN(WARN_REDEFINE) || (const_changed && const_sv)) { |
2f34f9d4 IZ |
2263 | if (!(CvGV(cv) && GvSTASH(CvGV(cv)) |
2264 | && HvNAME(GvSTASH(CvGV(cv))) | |
2265 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), | |
2266 | "autouse"))) | |
599cee73 | 2267 | warner(WARN_REDEFINE, const_sv ? |
fe5e78ed GS |
2268 | "Constant subroutine %s redefined" |
2269 | : "Subroutine %s redefined", | |
2f34f9d4 IZ |
2270 | GvENAME((GV*)dstr)); |
2271 | } | |
9607fc9c | 2272 | } |
3fe9a6f1 | 2273 | cv_ckproto(cv, (GV*)dstr, |
2274 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 2275 | } |
a5f75d66 | 2276 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 2277 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 2278 | GvASSUMECV_on(dstr); |
3280af22 | 2279 | PL_sub_generation++; |
a5f75d66 | 2280 | } |
3280af22 | 2281 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 2282 | GvIMPORTED_CV_on(dstr); |
8990e307 | 2283 | break; |
91bba347 LW |
2284 | case SVt_PVIO: |
2285 | if (intro) | |
2286 | SAVESPTR(GvIOp(dstr)); | |
2287 | else | |
2288 | dref = (SV*)GvIOp(dstr); | |
2289 | GvIOp(dstr) = (IO*)sref; | |
2290 | break; | |
8990e307 | 2291 | default: |
a0d0e21e LW |
2292 | if (intro) |
2293 | SAVESPTR(GvSV(dstr)); | |
2294 | else | |
2295 | dref = (SV*)GvSV(dstr); | |
8990e307 | 2296 | GvSV(dstr) = sref; |
3280af22 | 2297 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 2298 | GvIMPORTED_SV_on(dstr); |
8990e307 LW |
2299 | break; |
2300 | } | |
2301 | if (dref) | |
2302 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
2303 | if (intro) |
2304 | SAVEFREESV(sref); | |
8990e307 LW |
2305 | SvTAINT(dstr); |
2306 | return; | |
2307 | } | |
a0d0e21e | 2308 | if (SvPVX(dstr)) { |
760ac839 | 2309 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
2310 | if (SvLEN(dstr)) |
2311 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
2312 | SvLEN(dstr)=SvCUR(dstr)=0; |
2313 | } | |
8990e307 | 2314 | } |
a0d0e21e | 2315 | (void)SvOK_off(dstr); |
8990e307 | 2316 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 2317 | SvROK_on(dstr); |
8990e307 | 2318 | if (sflags & SVp_NOK) { |
ed6116ce LW |
2319 | SvNOK_on(dstr); |
2320 | SvNVX(dstr) = SvNVX(sstr); | |
2321 | } | |
8990e307 | 2322 | if (sflags & SVp_IOK) { |
a0d0e21e | 2323 | (void)SvIOK_on(dstr); |
ed6116ce | 2324 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2325 | if (SvIsUV(sstr)) |
2326 | SvIsUV_on(dstr); | |
ed6116ce | 2327 | } |
a0d0e21e LW |
2328 | if (SvAMAGIC(sstr)) { |
2329 | SvAMAGIC_on(dstr); | |
2330 | } | |
ed6116ce | 2331 | } |
8990e307 | 2332 | else if (sflags & SVp_POK) { |
79072805 LW |
2333 | |
2334 | /* | |
2335 | * Check to see if we can just swipe the string. If so, it's a | |
2336 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
2337 | * It might even be a win on short strings if SvPVX(dstr) |
2338 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
2339 | */ |
2340 | ||
ff68c719 | 2341 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 2342 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
a5f75d66 AD |
2343 | !(sflags & SVf_OOK)) /* and not involved in OOK hack? */ |
2344 | { | |
adbc6bb1 | 2345 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
2346 | if (SvOOK(dstr)) { |
2347 | SvFLAGS(dstr) &= ~SVf_OOK; | |
2348 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
2349 | } | |
50483b2c | 2350 | else if (SvLEN(dstr)) |
a5f75d66 | 2351 | Safefree(SvPVX(dstr)); |
79072805 | 2352 | } |
a5f75d66 | 2353 | (void)SvPOK_only(dstr); |
463ee0b2 | 2354 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
2355 | SvLEN_set(dstr, SvLEN(sstr)); |
2356 | SvCUR_set(dstr, SvCUR(sstr)); | |
79072805 | 2357 | SvTEMP_off(dstr); |
a5f75d66 | 2358 | (void)SvOK_off(sstr); |
79072805 LW |
2359 | SvPV_set(sstr, Nullch); |
2360 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
2361 | SvCUR_set(sstr, 0); |
2362 | SvTEMP_off(sstr); | |
79072805 LW |
2363 | } |
2364 | else { /* have to copy actual string */ | |
8990e307 LW |
2365 | STRLEN len = SvCUR(sstr); |
2366 | ||
2367 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
2368 | Move(SvPVX(sstr),SvPVX(dstr),len,char); | |
2369 | SvCUR_set(dstr, len); | |
2370 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 2371 | (void)SvPOK_only(dstr); |
79072805 LW |
2372 | } |
2373 | /*SUPPRESS 560*/ | |
8990e307 | 2374 | if (sflags & SVp_NOK) { |
79072805 | 2375 | SvNOK_on(dstr); |
463ee0b2 | 2376 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 2377 | } |
8990e307 | 2378 | if (sflags & SVp_IOK) { |
a0d0e21e | 2379 | (void)SvIOK_on(dstr); |
463ee0b2 | 2380 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2381 | if (SvIsUV(sstr)) |
2382 | SvIsUV_on(dstr); | |
79072805 LW |
2383 | } |
2384 | } | |
8990e307 | 2385 | else if (sflags & SVp_NOK) { |
463ee0b2 | 2386 | SvNVX(dstr) = SvNVX(sstr); |
a0d0e21e | 2387 | (void)SvNOK_only(dstr); |
79072805 | 2388 | if (SvIOK(sstr)) { |
a0d0e21e | 2389 | (void)SvIOK_on(dstr); |
463ee0b2 | 2390 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2391 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ |
2392 | if (SvIsUV(sstr)) | |
2393 | SvIsUV_on(dstr); | |
79072805 LW |
2394 | } |
2395 | } | |
8990e307 | 2396 | else if (sflags & SVp_IOK) { |
a0d0e21e | 2397 | (void)SvIOK_only(dstr); |
463ee0b2 | 2398 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2399 | if (SvIsUV(sstr)) |
2400 | SvIsUV_on(dstr); | |
79072805 LW |
2401 | } |
2402 | else { | |
20408e3c | 2403 | if (dtype == SVt_PVGV) { |
599cee73 PM |
2404 | if (ckWARN(WARN_UNSAFE)) |
2405 | warner(WARN_UNSAFE, "Undefined value assigned to typeglob"); | |
20408e3c GS |
2406 | } |
2407 | else | |
2408 | (void)SvOK_off(dstr); | |
a0d0e21e | 2409 | } |
463ee0b2 | 2410 | SvTAINT(dstr); |
79072805 LW |
2411 | } |
2412 | ||
2413 | void | |
ef50df4b GS |
2414 | sv_setsv_mg(SV *dstr, register SV *sstr) |
2415 | { | |
2416 | sv_setsv(dstr,sstr); | |
2417 | SvSETMAGIC(dstr); | |
2418 | } | |
2419 | ||
2420 | void | |
8ac85365 | 2421 | sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 2422 | { |
c6f8c383 | 2423 | register char *dptr; |
4561caa4 CS |
2424 | assert(len >= 0); /* STRLEN is probably unsigned, so this may |
2425 | elicit a warning, but it won't hurt. */ | |
2213622d | 2426 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 2427 | if (!ptr) { |
a0d0e21e | 2428 | (void)SvOK_off(sv); |
463ee0b2 LW |
2429 | return; |
2430 | } | |
6fc92669 | 2431 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 2432 | |
79072805 | 2433 | SvGROW(sv, len + 1); |
c6f8c383 GA |
2434 | dptr = SvPVX(sv); |
2435 | Move(ptr,dptr,len,char); | |
2436 | dptr[len] = '\0'; | |
79072805 | 2437 | SvCUR_set(sv, len); |
a0d0e21e | 2438 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2439 | SvTAINT(sv); |
79072805 LW |
2440 | } |
2441 | ||
2442 | void | |
ef50df4b GS |
2443 | sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len) |
2444 | { | |
2445 | sv_setpvn(sv,ptr,len); | |
2446 | SvSETMAGIC(sv); | |
2447 | } | |
2448 | ||
2449 | void | |
8ac85365 | 2450 | sv_setpv(register SV *sv, register const char *ptr) |
79072805 LW |
2451 | { |
2452 | register STRLEN len; | |
2453 | ||
2213622d | 2454 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 2455 | if (!ptr) { |
a0d0e21e | 2456 | (void)SvOK_off(sv); |
463ee0b2 LW |
2457 | return; |
2458 | } | |
79072805 | 2459 | len = strlen(ptr); |
6fc92669 | 2460 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 2461 | |
79072805 | 2462 | SvGROW(sv, len + 1); |
463ee0b2 | 2463 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 2464 | SvCUR_set(sv, len); |
a0d0e21e | 2465 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 LW |
2466 | SvTAINT(sv); |
2467 | } | |
2468 | ||
2469 | void | |
ef50df4b GS |
2470 | sv_setpv_mg(register SV *sv, register const char *ptr) |
2471 | { | |
2472 | sv_setpv(sv,ptr); | |
2473 | SvSETMAGIC(sv); | |
2474 | } | |
2475 | ||
2476 | void | |
8ac85365 | 2477 | sv_usepvn(register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 2478 | { |
2213622d | 2479 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 2480 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 2481 | if (!ptr) { |
a0d0e21e | 2482 | (void)SvOK_off(sv); |
463ee0b2 LW |
2483 | return; |
2484 | } | |
a0ed51b3 | 2485 | (void)SvOOK_off(sv); |
50483b2c | 2486 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
2487 | Safefree(SvPVX(sv)); |
2488 | Renew(ptr, len+1, char); | |
2489 | SvPVX(sv) = ptr; | |
2490 | SvCUR_set(sv, len); | |
2491 | SvLEN_set(sv, len+1); | |
2492 | *SvEND(sv) = '\0'; | |
a0d0e21e | 2493 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2494 | SvTAINT(sv); |
79072805 LW |
2495 | } |
2496 | ||
ef50df4b GS |
2497 | void |
2498 | sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len) | |
2499 | { | |
51c1089b | 2500 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
2501 | SvSETMAGIC(sv); |
2502 | } | |
2503 | ||
6fc92669 GS |
2504 | void |
2505 | sv_force_normal(register SV *sv) | |
0f15f207 | 2506 | { |
2213622d GA |
2507 | if (SvREADONLY(sv)) { |
2508 | dTHR; | |
3280af22 | 2509 | if (PL_curcop != &PL_compiling) |
22c35a8c | 2510 | croak(PL_no_modify); |
0f15f207 | 2511 | } |
2213622d GA |
2512 | if (SvROK(sv)) |
2513 | sv_unref(sv); | |
6fc92669 GS |
2514 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
2515 | sv_unglob(sv); | |
0f15f207 MB |
2516 | } |
2517 | ||
79072805 | 2518 | void |
8ac85365 NIS |
2519 | sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */ |
2520 | ||
2521 | ||
79072805 LW |
2522 | { |
2523 | register STRLEN delta; | |
2524 | ||
a0d0e21e | 2525 | if (!ptr || !SvPOKp(sv)) |
79072805 | 2526 | return; |
2213622d | 2527 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
2528 | if (SvTYPE(sv) < SVt_PVIV) |
2529 | sv_upgrade(sv,SVt_PVIV); | |
2530 | ||
2531 | if (!SvOOK(sv)) { | |
50483b2c JD |
2532 | if (!SvLEN(sv)) { /* make copy of shared string */ |
2533 | char *pvx = SvPVX(sv); | |
2534 | STRLEN len = SvCUR(sv); | |
2535 | SvGROW(sv, len + 1); | |
2536 | Move(pvx,SvPVX(sv),len,char); | |
2537 | *SvEND(sv) = '\0'; | |
2538 | } | |
463ee0b2 | 2539 | SvIVX(sv) = 0; |
79072805 LW |
2540 | SvFLAGS(sv) |= SVf_OOK; |
2541 | } | |
25da4f38 | 2542 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 2543 | delta = ptr - SvPVX(sv); |
79072805 LW |
2544 | SvLEN(sv) -= delta; |
2545 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
2546 | SvPVX(sv) += delta; |
2547 | SvIVX(sv) += delta; | |
79072805 LW |
2548 | } |
2549 | ||
2550 | void | |
08105a92 | 2551 | sv_catpvn(register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 2552 | { |
463ee0b2 | 2553 | STRLEN tlen; |
748a9306 | 2554 | char *junk; |
a0d0e21e | 2555 | |
748a9306 | 2556 | junk = SvPV_force(sv, tlen); |
463ee0b2 | 2557 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
2558 | if (ptr == junk) |
2559 | ptr = SvPVX(sv); | |
463ee0b2 | 2560 | Move(ptr,SvPVX(sv)+tlen,len,char); |
79072805 LW |
2561 | SvCUR(sv) += len; |
2562 | *SvEND(sv) = '\0'; | |
a0d0e21e | 2563 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2564 | SvTAINT(sv); |
79072805 LW |
2565 | } |
2566 | ||
2567 | void | |
08105a92 | 2568 | sv_catpvn_mg(register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
2569 | { |
2570 | sv_catpvn(sv,ptr,len); | |
2571 | SvSETMAGIC(sv); | |
2572 | } | |
2573 | ||
2574 | void | |
8ac85365 | 2575 | sv_catsv(SV *dstr, register SV *sstr) |
79072805 LW |
2576 | { |
2577 | char *s; | |
463ee0b2 | 2578 | STRLEN len; |
79072805 LW |
2579 | if (!sstr) |
2580 | return; | |
463ee0b2 LW |
2581 | if (s = SvPV(sstr, len)) |
2582 | sv_catpvn(dstr,s,len); | |
79072805 LW |
2583 | } |
2584 | ||
2585 | void | |
ef50df4b GS |
2586 | sv_catsv_mg(SV *dstr, register SV *sstr) |
2587 | { | |
2588 | sv_catsv(dstr,sstr); | |
2589 | SvSETMAGIC(dstr); | |
2590 | } | |
2591 | ||
2592 | void | |
08105a92 | 2593 | sv_catpv(register SV *sv, register const char *ptr) |
79072805 LW |
2594 | { |
2595 | register STRLEN len; | |
463ee0b2 | 2596 | STRLEN tlen; |
748a9306 | 2597 | char *junk; |
79072805 | 2598 | |
79072805 LW |
2599 | if (!ptr) |
2600 | return; | |
748a9306 | 2601 | junk = SvPV_force(sv, tlen); |
79072805 | 2602 | len = strlen(ptr); |
463ee0b2 | 2603 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
2604 | if (ptr == junk) |
2605 | ptr = SvPVX(sv); | |
463ee0b2 | 2606 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
79072805 | 2607 | SvCUR(sv) += len; |
a0d0e21e | 2608 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2609 | SvTAINT(sv); |
79072805 LW |
2610 | } |
2611 | ||
ef50df4b | 2612 | void |
08105a92 | 2613 | sv_catpv_mg(register SV *sv, register const char *ptr) |
ef50df4b | 2614 | { |
51c1089b | 2615 | sv_catpv(sv,ptr); |
ef50df4b GS |
2616 | SvSETMAGIC(sv); |
2617 | } | |
2618 | ||
79072805 | 2619 | SV * |
8ac85365 | 2620 | newSV(STRLEN len) |
79072805 LW |
2621 | { |
2622 | register SV *sv; | |
2623 | ||
4561caa4 | 2624 | new_SV(sv); |
79072805 LW |
2625 | if (len) { |
2626 | sv_upgrade(sv, SVt_PV); | |
2627 | SvGROW(sv, len + 1); | |
2628 | } | |
2629 | return sv; | |
2630 | } | |
2631 | ||
1edc1566 | 2632 | /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */ |
2633 | ||
79072805 | 2634 | void |
08105a92 | 2635 | sv_magic(register SV *sv, SV *obj, int how, const char *name, I32 namlen) |
79072805 LW |
2636 | { |
2637 | MAGIC* mg; | |
2638 | ||
0f15f207 MB |
2639 | if (SvREADONLY(sv)) { |
2640 | dTHR; | |
3280af22 | 2641 | if (PL_curcop != &PL_compiling && !strchr("gBf", how)) |
22c35a8c | 2642 | croak(PL_no_modify); |
0f15f207 | 2643 | } |
4633a7c4 | 2644 | if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 LW |
2645 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
2646 | if (how == 't') | |
565764a8 | 2647 | mg->mg_len |= 1; |
463ee0b2 | 2648 | return; |
748a9306 | 2649 | } |
463ee0b2 LW |
2650 | } |
2651 | else { | |
c6f8c383 | 2652 | (void)SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 2653 | } |
79072805 LW |
2654 | Newz(702,mg, 1, MAGIC); |
2655 | mg->mg_moremagic = SvMAGIC(sv); | |
463ee0b2 | 2656 | |
79072805 | 2657 | SvMAGIC(sv) = mg; |
c277df42 | 2658 | if (!obj || obj == sv || how == '#' || how == 'r') |
8990e307 | 2659 | mg->mg_obj = obj; |
85e6fe83 | 2660 | else { |
11343788 | 2661 | dTHR; |
8990e307 | 2662 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
2663 | mg->mg_flags |= MGf_REFCOUNTED; |
2664 | } | |
79072805 | 2665 | mg->mg_type = how; |
565764a8 | 2666 | mg->mg_len = namlen; |
1edc1566 | 2667 | if (name) |
2668 | if (namlen >= 0) | |
2669 | mg->mg_ptr = savepvn(name, namlen); | |
c6ee37c5 | 2670 | else if (namlen == HEf_SVKEY) |
1edc1566 | 2671 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
2672 | ||
79072805 LW |
2673 | switch (how) { |
2674 | case 0: | |
22c35a8c | 2675 | mg->mg_virtual = &PL_vtbl_sv; |
79072805 | 2676 | break; |
a0d0e21e | 2677 | case 'A': |
22c35a8c | 2678 | mg->mg_virtual = &PL_vtbl_amagic; |
a0d0e21e LW |
2679 | break; |
2680 | case 'a': | |
22c35a8c | 2681 | mg->mg_virtual = &PL_vtbl_amagicelem; |
a0d0e21e LW |
2682 | break; |
2683 | case 'c': | |
2684 | mg->mg_virtual = 0; | |
2685 | break; | |
79072805 | 2686 | case 'B': |
22c35a8c | 2687 | mg->mg_virtual = &PL_vtbl_bm; |
79072805 | 2688 | break; |
6cef1e77 | 2689 | case 'D': |
22c35a8c | 2690 | mg->mg_virtual = &PL_vtbl_regdata; |
6cef1e77 IZ |
2691 | break; |
2692 | case 'd': | |
22c35a8c | 2693 | mg->mg_virtual = &PL_vtbl_regdatum; |
6cef1e77 | 2694 | break; |
79072805 | 2695 | case 'E': |
22c35a8c | 2696 | mg->mg_virtual = &PL_vtbl_env; |
79072805 | 2697 | break; |
55497cff | 2698 | case 'f': |
22c35a8c | 2699 | mg->mg_virtual = &PL_vtbl_fm; |
55497cff | 2700 | break; |
79072805 | 2701 | case 'e': |
22c35a8c | 2702 | mg->mg_virtual = &PL_vtbl_envelem; |
79072805 | 2703 | break; |
93a17b20 | 2704 | case 'g': |
22c35a8c | 2705 | mg->mg_virtual = &PL_vtbl_mglob; |
93a17b20 | 2706 | break; |
463ee0b2 | 2707 | case 'I': |
22c35a8c | 2708 | mg->mg_virtual = &PL_vtbl_isa; |
463ee0b2 LW |
2709 | break; |
2710 | case 'i': | |
22c35a8c | 2711 | mg->mg_virtual = &PL_vtbl_isaelem; |
463ee0b2 | 2712 | break; |
16660edb | 2713 | case 'k': |
22c35a8c | 2714 | mg->mg_virtual = &PL_vtbl_nkeys; |
16660edb | 2715 | break; |
79072805 | 2716 | case 'L': |
a0d0e21e | 2717 | SvRMAGICAL_on(sv); |
93a17b20 LW |
2718 | mg->mg_virtual = 0; |
2719 | break; | |
2720 | case 'l': | |
22c35a8c | 2721 | mg->mg_virtual = &PL_vtbl_dbline; |
79072805 | 2722 | break; |
f93b4edd MB |
2723 | #ifdef USE_THREADS |
2724 | case 'm': | |
22c35a8c | 2725 | mg->mg_virtual = &PL_vtbl_mutex; |
f93b4edd MB |
2726 | break; |
2727 | #endif /* USE_THREADS */ | |
36477c24 | 2728 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 2729 | case 'o': |
22c35a8c | 2730 | mg->mg_virtual = &PL_vtbl_collxfrm; |
bbce6d69 | 2731 | break; |
36477c24 | 2732 | #endif /* USE_LOCALE_COLLATE */ |
463ee0b2 | 2733 | case 'P': |
22c35a8c | 2734 | mg->mg_virtual = &PL_vtbl_pack; |
463ee0b2 LW |
2735 | break; |
2736 | case 'p': | |
a0d0e21e | 2737 | case 'q': |
22c35a8c | 2738 | mg->mg_virtual = &PL_vtbl_packelem; |
463ee0b2 | 2739 | break; |
c277df42 | 2740 | case 'r': |
22c35a8c | 2741 | mg->mg_virtual = &PL_vtbl_regexp; |
c277df42 | 2742 | break; |
79072805 | 2743 | case 'S': |
22c35a8c | 2744 | mg->mg_virtual = &PL_vtbl_sig; |
79072805 LW |
2745 | break; |
2746 | case 's': | |
22c35a8c | 2747 | mg->mg_virtual = &PL_vtbl_sigelem; |
79072805 | 2748 | break; |
463ee0b2 | 2749 | case 't': |
22c35a8c | 2750 | mg->mg_virtual = &PL_vtbl_taint; |
565764a8 | 2751 | mg->mg_len = 1; |
463ee0b2 | 2752 | break; |
79072805 | 2753 | case 'U': |
22c35a8c | 2754 | mg->mg_virtual = &PL_vtbl_uvar; |
79072805 LW |
2755 | break; |
2756 | case 'v': | |
22c35a8c | 2757 | mg->mg_virtual = &PL_vtbl_vec; |
79072805 LW |
2758 | break; |
2759 | case 'x': | |
22c35a8c | 2760 | mg->mg_virtual = &PL_vtbl_substr; |
79072805 | 2761 | break; |
5f05dabc | 2762 | case 'y': |
22c35a8c | 2763 | mg->mg_virtual = &PL_vtbl_defelem; |
5f05dabc | 2764 | break; |
79072805 | 2765 | case '*': |
22c35a8c | 2766 | mg->mg_virtual = &PL_vtbl_glob; |
79072805 LW |
2767 | break; |
2768 | case '#': | |
22c35a8c | 2769 | mg->mg_virtual = &PL_vtbl_arylen; |
79072805 | 2770 | break; |
a0d0e21e | 2771 | case '.': |
22c35a8c | 2772 | mg->mg_virtual = &PL_vtbl_pos; |
a0d0e21e | 2773 | break; |
810b8aa5 GS |
2774 | case '<': |
2775 | mg->mg_virtual = &PL_vtbl_backref; | |
2776 | break; | |
4633a7c4 LW |
2777 | case '~': /* Reserved for use by extensions not perl internals. */ |
2778 | /* Useful for attaching extension internal data to perl vars. */ | |
2779 | /* Note that multiple extensions may clash if magical scalars */ | |
2780 | /* etc holding private data from one are passed to another. */ | |
2781 | SvRMAGICAL_on(sv); | |
a0d0e21e | 2782 | break; |
79072805 | 2783 | default: |
463ee0b2 LW |
2784 | croak("Don't know how to handle magic of type '%c'", how); |
2785 | } | |
8990e307 LW |
2786 | mg_magical(sv); |
2787 | if (SvGMAGICAL(sv)) | |
2788 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
2789 | } |
2790 | ||
2791 | int | |
8ac85365 | 2792 | sv_unmagic(SV *sv, int type) |
463ee0b2 LW |
2793 | { |
2794 | MAGIC* mg; | |
2795 | MAGIC** mgp; | |
91bba347 | 2796 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
2797 | return 0; |
2798 | mgp = &SvMAGIC(sv); | |
2799 | for (mg = *mgp; mg; mg = *mgp) { | |
2800 | if (mg->mg_type == type) { | |
2801 | MGVTBL* vtbl = mg->mg_virtual; | |
2802 | *mgp = mg->mg_moremagic; | |
76e3520e GS |
2803 | if (vtbl && (vtbl->svt_free != NULL)) |
2804 | (VTBL->svt_free)(sv, mg); | |
463ee0b2 | 2805 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 2806 | if (mg->mg_len >= 0) |
1edc1566 | 2807 | Safefree(mg->mg_ptr); |
565764a8 | 2808 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 2809 | SvREFCNT_dec((SV*)mg->mg_ptr); |
a0d0e21e LW |
2810 | if (mg->mg_flags & MGf_REFCOUNTED) |
2811 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
2812 | Safefree(mg); |
2813 | } | |
2814 | else | |
2815 | mgp = &mg->mg_moremagic; | |
79072805 | 2816 | } |
91bba347 | 2817 | if (!SvMAGIC(sv)) { |
463ee0b2 | 2818 | SvMAGICAL_off(sv); |
8990e307 | 2819 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
2820 | } |
2821 | ||
2822 | return 0; | |
79072805 LW |
2823 | } |
2824 | ||
810b8aa5 GS |
2825 | SV * |
2826 | sv_rvweaken(SV *sv) | |
2827 | { | |
2828 | SV *tsv; | |
2829 | if (!SvOK(sv)) /* let undefs pass */ | |
2830 | return sv; | |
2831 | if (!SvROK(sv)) | |
2832 | croak("Can't weaken a nonreference"); | |
2833 | else if (SvWEAKREF(sv)) { | |
2834 | dTHR; | |
2835 | if (ckWARN(WARN_MISC)) | |
2836 | warner(WARN_MISC, "Reference is already weak"); | |
2837 | return sv; | |
2838 | } | |
2839 | tsv = SvRV(sv); | |
2840 | sv_add_backref(tsv, sv); | |
2841 | SvWEAKREF_on(sv); | |
2842 | SvREFCNT_dec(tsv); | |
2843 | return sv; | |
2844 | } | |
2845 | ||
2846 | STATIC void | |
2847 | sv_add_backref(SV *tsv, SV *sv) | |
2848 | { | |
2849 | AV *av; | |
2850 | MAGIC *mg; | |
2851 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, '<'))) | |
2852 | av = (AV*)mg->mg_obj; | |
2853 | else { | |
2854 | av = newAV(); | |
2855 | sv_magic(tsv, (SV*)av, '<', NULL, 0); | |
2856 | SvREFCNT_dec(av); /* for sv_magic */ | |
2857 | } | |
2858 | av_push(av,sv); | |
2859 | } | |
2860 | ||
2861 | STATIC void | |
2862 | sv_del_backref(SV *sv) | |
2863 | { | |
2864 | AV *av; | |
2865 | SV **svp; | |
2866 | I32 i; | |
2867 | SV *tsv = SvRV(sv); | |
2868 | MAGIC *mg; | |
2869 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, '<'))) | |
2870 | croak("panic: del_backref"); | |
2871 | av = (AV *)mg->mg_obj; | |
2872 | svp = AvARRAY(av); | |
2873 | i = AvFILLp(av); | |
2874 | while (i >= 0) { | |
2875 | if (svp[i] == sv) { | |
2876 | svp[i] = &PL_sv_undef; /* XXX */ | |
2877 | } | |
2878 | i--; | |
2879 | } | |
2880 | } | |
2881 | ||
79072805 | 2882 | void |
8ac85365 | 2883 | sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
2884 | { |
2885 | register char *big; | |
2886 | register char *mid; | |
2887 | register char *midend; | |
2888 | register char *bigend; | |
2889 | register I32 i; | |
6ff81951 GS |
2890 | STRLEN curlen; |
2891 | ||
79072805 | 2892 | |
8990e307 LW |
2893 | if (!bigstr) |
2894 | croak("Can't modify non-existent substring"); | |
6ff81951 GS |
2895 | SvPV_force(bigstr, curlen); |
2896 | if (offset + len > curlen) { | |
2897 | SvGROW(bigstr, offset+len+1); | |
2898 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
2899 | SvCUR_set(bigstr, offset+len); | |
2900 | } | |
79072805 LW |
2901 | |
2902 | i = littlelen - len; | |
2903 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 2904 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
2905 | mid = big + offset + len; |
2906 | midend = bigend = big + SvCUR(bigstr); | |
2907 | bigend += i; | |
2908 | *bigend = '\0'; | |
2909 | while (midend > mid) /* shove everything down */ | |
2910 | *--bigend = *--midend; | |
2911 | Move(little,big+offset,littlelen,char); | |
2912 | SvCUR(bigstr) += i; | |
2913 | SvSETMAGIC(bigstr); | |
2914 | return; | |
2915 | } | |
2916 | else if (i == 0) { | |
463ee0b2 | 2917 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
2918 | SvSETMAGIC(bigstr); |
2919 | return; | |
2920 | } | |
2921 | ||
463ee0b2 | 2922 | big = SvPVX(bigstr); |
79072805 LW |
2923 | mid = big + offset; |
2924 | midend = mid + len; | |
2925 | bigend = big + SvCUR(bigstr); | |
2926 | ||
2927 | if (midend > bigend) | |
463ee0b2 | 2928 | croak("panic: sv_insert"); |
79072805 LW |
2929 | |
2930 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
2931 | if (littlelen) { | |
2932 | Move(little, mid, littlelen,char); | |
2933 | mid += littlelen; | |
2934 | } | |
2935 | i = bigend - midend; | |
2936 | if (i > 0) { | |
2937 | Move(midend, mid, i,char); | |
2938 | mid += i; | |
2939 | } | |
2940 | *mid = '\0'; | |
2941 | SvCUR_set(bigstr, mid - big); | |
2942 | } | |
2943 | /*SUPPRESS 560*/ | |
2944 | else if (i = mid - big) { /* faster from front */ | |
2945 | midend -= littlelen; | |
2946 | mid = midend; | |
2947 | sv_chop(bigstr,midend-i); | |
2948 | big += i; | |
2949 | while (i--) | |
2950 | *--midend = *--big; | |
2951 | if (littlelen) | |
2952 | Move(little, mid, littlelen,char); | |
2953 | } | |
2954 | else if (littlelen) { | |
2955 | midend -= littlelen; | |
2956 | sv_chop(bigstr,midend); | |
2957 | Move(little,midend,littlelen,char); | |
2958 | } | |
2959 | else { | |
2960 | sv_chop(bigstr,midend); | |
2961 | } | |
2962 | SvSETMAGIC(bigstr); | |
2963 | } | |
2964 | ||
2965 | /* make sv point to what nstr did */ | |
2966 | ||
2967 | void | |
8ac85365 | 2968 | sv_replace(register SV *sv, register SV *nsv) |
79072805 LW |
2969 | { |
2970 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 2971 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
2972 | if (SvREFCNT(nsv) != 1) |
2973 | warn("Reference miscount in sv_replace()"); | |
93a17b20 | 2974 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
2975 | if (SvMAGICAL(nsv)) |
2976 | mg_free(nsv); | |
2977 | else | |
2978 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 2979 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 2980 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
2981 | SvMAGICAL_off(sv); |
2982 | SvMAGIC(sv) = 0; | |
2983 | } | |
79072805 LW |
2984 | SvREFCNT(sv) = 0; |
2985 | sv_clear(sv); | |
477f5d66 | 2986 | assert(!SvREFCNT(sv)); |
79072805 LW |
2987 | StructCopy(nsv,sv,SV); |
2988 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 2989 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 2990 | del_SV(nsv); |
79072805 LW |
2991 | } |
2992 | ||
2993 | void | |
8ac85365 | 2994 | sv_clear(register SV *sv) |
79072805 | 2995 | { |
ec12f114 | 2996 | HV* stash; |
79072805 LW |
2997 | assert(sv); |
2998 | assert(SvREFCNT(sv) == 0); | |
2999 | ||
ed6116ce | 3000 | if (SvOBJECT(sv)) { |
e858de61 | 3001 | dTHR; |
3280af22 | 3002 | if (PL_defstash) { /* Still have a symbol table? */ |
4e35701f | 3003 | djSP; |
8ebc5c01 | 3004 | GV* destructor; |
837485b6 | 3005 | SV tmpref; |
a0d0e21e | 3006 | |
837485b6 GS |
3007 | Zero(&tmpref, 1, SV); |
3008 | sv_upgrade(&tmpref, SVt_RV); | |
3009 | SvROK_on(&tmpref); | |
3010 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
3011 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 3012 | |
4e8e7886 GS |
3013 | do { |
3014 | stash = SvSTASH(sv); | |
3015 | destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); | |
3016 | if (destructor) { | |
3017 | ENTER; | |
e788e7d3 | 3018 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 3019 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
3020 | EXTEND(SP, 2); |
3021 | PUSHMARK(SP); | |
837485b6 | 3022 | PUSHs(&tmpref); |
4e8e7886 GS |
3023 | PUTBACK; |
3024 | perl_call_sv((SV*)GvCV(destructor), | |
3025 | G_DISCARD|G_EVAL|G_KEEPERR); | |
3026 | SvREFCNT(sv)--; | |
d3acc0f7 | 3027 | POPSTACK; |
3095d977 | 3028 | SPAGAIN; |
4e8e7886 GS |
3029 | LEAVE; |
3030 | } | |
3031 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 3032 | |
837485b6 | 3033 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
3034 | |
3035 | if (SvREFCNT(sv)) { | |
3036 | if (PL_in_clean_objs) | |
3037 | croak("DESTROY created new reference to dead object '%s'", | |
3038 | HvNAME(stash)); | |
3039 | /* DESTROY gave object new lease on life */ | |
3040 | return; | |
3041 | } | |
a0d0e21e | 3042 | } |
4e8e7886 | 3043 | |
a0d0e21e | 3044 | if (SvOBJECT(sv)) { |
4e8e7886 | 3045 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
3046 | SvOBJECT_off(sv); /* Curse the object. */ |
3047 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 3048 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 3049 | } |
463ee0b2 | 3050 | } |
c07a80fd | 3051 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
a0d0e21e | 3052 | mg_free(sv); |
ec12f114 | 3053 | stash = NULL; |
79072805 | 3054 | switch (SvTYPE(sv)) { |
8990e307 | 3055 | case SVt_PVIO: |
df0bd2f4 GS |
3056 | if (IoIFP(sv) && |
3057 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 3058 | IoIFP(sv) != PerlIO_stdout() && |
3059 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 3060 | { |
5f05dabc | 3061 | io_close((IO*)sv); |
93578b34 | 3062 | } |
1236053a GS |
3063 | if (IoDIRP(sv)) { |
3064 | PerlDir_close(IoDIRP(sv)); | |
3065 | IoDIRP(sv) = 0; | |
93578b34 | 3066 | } |
8990e307 LW |
3067 | Safefree(IoTOP_NAME(sv)); |
3068 | Safefree(IoFMT_NAME(sv)); | |
3069 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 3070 | /* FALL THROUGH */ |
79072805 | 3071 | case SVt_PVBM: |
a0d0e21e | 3072 | goto freescalar; |
79072805 | 3073 | case SVt_PVCV: |
748a9306 | 3074 | case SVt_PVFM: |
85e6fe83 | 3075 | cv_undef((CV*)sv); |
a0d0e21e | 3076 | goto freescalar; |
79072805 | 3077 | case SVt_PVHV: |
85e6fe83 | 3078 | hv_undef((HV*)sv); |
a0d0e21e | 3079 | break; |
79072805 | 3080 | case SVt_PVAV: |
85e6fe83 | 3081 | av_undef((AV*)sv); |
a0d0e21e | 3082 | break; |
02270b4e GS |
3083 | case SVt_PVLV: |
3084 | SvREFCNT_dec(LvTARG(sv)); | |
3085 | goto freescalar; | |
a0d0e21e | 3086 | case SVt_PVGV: |
1edc1566 | 3087 | gp_free((GV*)sv); |
a0d0e21e | 3088 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
3089 | /* cannot decrease stash refcount yet, as we might recursively delete |
3090 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
3091 | of stash until current sv is completely gone. | |
3092 | -- JohnPC, 27 Mar 1998 */ | |
3093 | stash = GvSTASH(sv); | |
a0d0e21e | 3094 | /* FALL THROUGH */ |
79072805 | 3095 | case SVt_PVMG: |
79072805 LW |
3096 | case SVt_PVNV: |
3097 | case SVt_PVIV: | |
a0d0e21e LW |
3098 | freescalar: |
3099 | (void)SvOOK_off(sv); | |
79072805 LW |
3100 | /* FALL THROUGH */ |
3101 | case SVt_PV: | |
a0d0e21e | 3102 | case SVt_RV: |
810b8aa5 GS |
3103 | if (SvROK(sv)) { |
3104 | if (SvWEAKREF(sv)) | |
3105 | sv_del_backref(sv); | |
3106 | else | |
3107 | SvREFCNT_dec(SvRV(sv)); | |
3108 | } | |
1edc1566 | 3109 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 3110 | Safefree(SvPVX(sv)); |
79072805 | 3111 | break; |
a0d0e21e | 3112 | /* |
79072805 | 3113 | case SVt_NV: |
79072805 | 3114 | case SVt_IV: |
79072805 LW |
3115 | case SVt_NULL: |
3116 | break; | |
a0d0e21e | 3117 | */ |
79072805 LW |
3118 | } |
3119 | ||
3120 | switch (SvTYPE(sv)) { | |
3121 | case SVt_NULL: | |
3122 | break; | |
79072805 LW |
3123 | case SVt_IV: |
3124 | del_XIV(SvANY(sv)); | |
3125 | break; | |
3126 | case SVt_NV: | |
3127 | del_XNV(SvANY(sv)); | |
3128 | break; | |
ed6116ce LW |
3129 | case SVt_RV: |
3130 | del_XRV(SvANY(sv)); | |
3131 | break; | |
79072805 LW |
3132 | case SVt_PV: |
3133 | del_XPV(SvANY(sv)); | |
3134 | break; | |
3135 | case SVt_PVIV: | |
3136 | del_XPVIV(SvANY(sv)); | |
3137 | break; | |
3138 | case SVt_PVNV: | |
3139 | del_XPVNV(SvANY(sv)); | |
3140 | break; | |
3141 | case SVt_PVMG: | |
3142 | del_XPVMG(SvANY(sv)); | |
3143 | break; | |
3144 | case SVt_PVLV: | |
3145 | del_XPVLV(SvANY(sv)); | |
3146 | break; | |
3147 | case SVt_PVAV: | |
3148 | del_XPVAV(SvANY(sv)); | |
3149 | break; | |
3150 | case SVt_PVHV: | |
3151 | del_XPVHV(SvANY(sv)); | |
3152 | break; | |
3153 | case SVt_PVCV: | |
3154 | del_XPVCV(SvANY(sv)); | |
3155 | break; | |
3156 | case SVt_PVGV: | |
3157 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
3158 | /* code duplication for increased performance. */ |
3159 | SvFLAGS(sv) &= SVf_BREAK; | |
3160 | SvFLAGS(sv) |= SVTYPEMASK; | |
3161 | /* decrease refcount of the stash that owns this GV, if any */ | |
3162 | if (stash) | |
3163 | SvREFCNT_dec(stash); | |
3164 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
3165 | case SVt_PVBM: |
3166 | del_XPVBM(SvANY(sv)); | |
3167 | break; | |
3168 | case SVt_PVFM: | |
3169 | del_XPVFM(SvANY(sv)); | |
3170 | break; | |
8990e307 LW |
3171 | case SVt_PVIO: |
3172 | del_XPVIO(SvANY(sv)); | |
3173 | break; | |
79072805 | 3174 | } |
a0d0e21e | 3175 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 3176 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
3177 | } |
3178 | ||
3179 | SV * | |
8ac85365 | 3180 | sv_newref(SV *sv) |
79072805 | 3181 | { |
463ee0b2 | 3182 | if (sv) |
dce16143 | 3183 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
3184 | return sv; |
3185 | } | |
3186 | ||
3187 | void | |
8ac85365 | 3188 | sv_free(SV *sv) |
79072805 | 3189 | { |
dce16143 MB |
3190 | int refcount_is_zero; |
3191 | ||
79072805 LW |
3192 | if (!sv) |
3193 | return; | |
a0d0e21e LW |
3194 | if (SvREFCNT(sv) == 0) { |
3195 | if (SvFLAGS(sv) & SVf_BREAK) | |
3196 | return; | |
3280af22 | 3197 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 3198 | return; |
d689ffdd JP |
3199 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
3200 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
3201 | SvREFCNT(sv) = (~(U32)0)/2; | |
3202 | return; | |
3203 | } | |
79072805 LW |
3204 | warn("Attempt to free unreferenced scalar"); |
3205 | return; | |
3206 | } | |
dce16143 MB |
3207 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
3208 | if (!refcount_is_zero) | |
8990e307 | 3209 | return; |
463ee0b2 LW |
3210 | #ifdef DEBUGGING |
3211 | if (SvTEMP(sv)) { | |
7f20e9dd | 3212 | warn("Attempt to free temp prematurely: SV 0x%lx", (unsigned long)sv); |
79072805 | 3213 | return; |
79072805 | 3214 | } |
463ee0b2 | 3215 | #endif |
d689ffdd JP |
3216 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
3217 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
3218 | SvREFCNT(sv) = (~(U32)0)/2; | |
3219 | return; | |
3220 | } | |
79072805 | 3221 | sv_clear(sv); |
477f5d66 CS |
3222 | if (! SvREFCNT(sv)) |
3223 | del_SV(sv); | |
79072805 LW |
3224 | } |
3225 | ||
3226 | STRLEN | |
8ac85365 | 3227 | sv_len(register SV *sv) |
79072805 | 3228 | { |
748a9306 | 3229 | char *junk; |
463ee0b2 | 3230 | STRLEN len; |
79072805 LW |
3231 | |
3232 | if (!sv) | |
3233 | return 0; | |
3234 | ||
8990e307 | 3235 | if (SvGMAGICAL(sv)) |
565764a8 | 3236 | len = mg_length(sv); |
8990e307 | 3237 | else |
748a9306 | 3238 | junk = SvPV(sv, len); |
463ee0b2 | 3239 | return len; |
79072805 LW |
3240 | } |
3241 | ||
a0ed51b3 LW |
3242 | STRLEN |
3243 | sv_len_utf8(register SV *sv) | |
3244 | { | |
dfe13c55 GS |
3245 | U8 *s; |
3246 | U8 *send; | |
a0ed51b3 LW |
3247 | STRLEN len; |
3248 | ||
3249 | if (!sv) | |
3250 | return 0; | |
3251 | ||
3252 | #ifdef NOTYET | |
3253 | if (SvGMAGICAL(sv)) | |
3254 | len = mg_length(sv); | |
3255 | else | |
3256 | #endif | |
dfe13c55 | 3257 | s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
3258 | send = s + len; |
3259 | len = 0; | |
3260 | while (s < send) { | |
3261 | s += UTF8SKIP(s); | |
3262 | len++; | |
3263 | } | |
3264 | return len; | |
3265 | } | |
3266 | ||
3267 | void | |
3268 | sv_pos_u2b(register SV *sv, I32* offsetp, I32* lenp) | |
3269 | { | |
dfe13c55 GS |
3270 | U8 *start; |
3271 | U8 *s; | |
3272 | U8 *send; | |
a0ed51b3 LW |
3273 | I32 uoffset = *offsetp; |
3274 | STRLEN len; | |
3275 | ||
3276 | if (!sv) | |
3277 | return; | |
3278 | ||
dfe13c55 | 3279 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
3280 | send = s + len; |
3281 | while (s < send && uoffset--) | |
3282 | s += UTF8SKIP(s); | |
bb40f870 GA |
3283 | if (s >= send) |
3284 | s = send; | |
a0ed51b3 LW |
3285 | *offsetp = s - start; |
3286 | if (lenp) { | |
3287 | I32 ulen = *lenp; | |
3288 | start = s; | |
3289 | while (s < send && ulen--) | |
3290 | s += UTF8SKIP(s); | |
bb40f870 GA |
3291 | if (s >= send) |
3292 | s = send; | |
a0ed51b3 LW |
3293 | *lenp = s - start; |
3294 | } | |
3295 | return; | |
3296 | } | |
3297 | ||
3298 | void | |
3299 | sv_pos_b2u(register SV *sv, I32* offsetp) | |
3300 | { | |
dfe13c55 GS |
3301 | U8 *s; |
3302 | U8 *send; | |
a0ed51b3 LW |
3303 | STRLEN len; |
3304 | ||
3305 | if (!sv) | |
3306 | return; | |
3307 | ||
dfe13c55 | 3308 | s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
3309 | if (len < *offsetp) |
3310 | croak("panic: bad byte offset"); | |
3311 | send = s + *offsetp; | |
3312 | len = 0; | |
3313 | while (s < send) { | |
3314 | s += UTF8SKIP(s); | |
3315 | ++len; | |
3316 | } | |
3317 | if (s != send) { | |
3318 | warn("Malformed UTF-8 character"); | |
3319 | --len; | |
3320 | } | |
3321 | *offsetp = len; | |
3322 | return; | |
3323 | } | |
3324 | ||
79072805 | 3325 | I32 |
8ac85365 | 3326 | sv_eq(register SV *str1, register SV *str2) |
79072805 LW |
3327 | { |
3328 | char *pv1; | |
463ee0b2 | 3329 | STRLEN cur1; |
79072805 | 3330 | char *pv2; |
463ee0b2 | 3331 | STRLEN cur2; |
79072805 LW |
3332 | |
3333 | if (!str1) { | |
3334 | pv1 = ""; | |
3335 | cur1 = 0; | |
3336 | } | |
463ee0b2 LW |
3337 | else |
3338 | pv1 = SvPV(str1, cur1); | |
79072805 LW |
3339 | |
3340 | if (!str2) | |
3341 | return !cur1; | |
463ee0b2 LW |
3342 | else |
3343 | pv2 = SvPV(str2, cur2); | |
79072805 LW |
3344 | |
3345 | if (cur1 != cur2) | |
3346 | return 0; | |
3347 | ||
36477c24 | 3348 | return memEQ(pv1, pv2, cur1); |
79072805 LW |
3349 | } |
3350 | ||
3351 | I32 | |
8ac85365 | 3352 | sv_cmp(register SV *str1, register SV *str2) |
79072805 | 3353 | { |
bbce6d69 | 3354 | STRLEN cur1 = 0; |
8ac85365 | 3355 | char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL; |
bbce6d69 | 3356 | STRLEN cur2 = 0; |
8ac85365 | 3357 | char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL; |
79072805 | 3358 | I32 retval; |
79072805 | 3359 | |
bbce6d69 | 3360 | if (!cur1) |
3361 | return cur2 ? -1 : 0; | |
16660edb | 3362 | |
bbce6d69 | 3363 | if (!cur2) |
3364 | return 1; | |
79072805 | 3365 | |
bbce6d69 | 3366 | retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); |
16660edb | 3367 | |
bbce6d69 | 3368 | if (retval) |
3369 | return retval < 0 ? -1 : 1; | |
16660edb | 3370 | |
bbce6d69 | 3371 | if (cur1 == cur2) |
3372 | return 0; | |
3373 | else | |
3374 | return cur1 < cur2 ? -1 : 1; | |
3375 | } | |
16660edb | 3376 | |
bbce6d69 | 3377 | I32 |
8ac85365 | 3378 | sv_cmp_locale(register SV *sv1, register SV *sv2) |
bbce6d69 | 3379 | { |
36477c24 | 3380 | #ifdef USE_LOCALE_COLLATE |
16660edb | 3381 | |
bbce6d69 | 3382 | char *pv1, *pv2; |
3383 | STRLEN len1, len2; | |
3384 | I32 retval; | |
16660edb | 3385 | |
3280af22 | 3386 | if (PL_collation_standard) |
bbce6d69 | 3387 | goto raw_compare; |
16660edb | 3388 | |
bbce6d69 | 3389 | len1 = 0; |
8ac85365 | 3390 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 3391 | len2 = 0; |
8ac85365 | 3392 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 3393 | |
bbce6d69 | 3394 | if (!pv1 || !len1) { |
3395 | if (pv2 && len2) | |
3396 | return -1; | |
3397 | else | |
3398 | goto raw_compare; | |
3399 | } | |
3400 | else { | |
3401 | if (!pv2 || !len2) | |
3402 | return 1; | |
3403 | } | |
16660edb | 3404 | |
bbce6d69 | 3405 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 3406 | |
bbce6d69 | 3407 | if (retval) |
16660edb | 3408 | return retval < 0 ? -1 : 1; |
3409 | ||
bbce6d69 | 3410 | /* |
3411 | * When the result of collation is equality, that doesn't mean | |
3412 | * that there are no differences -- some locales exclude some | |
3413 | * characters from consideration. So to avoid false equalities, | |
3414 | * we use the raw string as a tiebreaker. | |
3415 | */ | |
16660edb | 3416 | |
bbce6d69 | 3417 | raw_compare: |
3418 | /* FALL THROUGH */ | |
16660edb | 3419 | |
36477c24 | 3420 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 3421 | |
bbce6d69 | 3422 | return sv_cmp(sv1, sv2); |
3423 | } | |
79072805 | 3424 | |
36477c24 | 3425 | #ifdef USE_LOCALE_COLLATE |
7a4c00b4 | 3426 | /* |
3427 | * Any scalar variable may carry an 'o' magic that contains the | |
3428 | * scalar data of the variable transformed to such a format that | |
3429 | * a normal memory comparison can be used to compare the data | |
3430 | * according to the locale settings. | |
3431 | */ | |
bbce6d69 | 3432 | char * |
8ac85365 | 3433 | sv_collxfrm(SV *sv, STRLEN *nxp) |
bbce6d69 | 3434 | { |
7a4c00b4 | 3435 | MAGIC *mg; |
16660edb | 3436 | |
8ac85365 | 3437 | mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL; |
3280af22 | 3438 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 3439 | char *s, *xf; |
3440 | STRLEN len, xlen; | |
3441 | ||
7a4c00b4 | 3442 | if (mg) |
3443 | Safefree(mg->mg_ptr); | |
bbce6d69 | 3444 | s = SvPV(sv, len); |
3445 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 3446 | if (SvREADONLY(sv)) { |
3447 | SAVEFREEPV(xf); | |
3448 | *nxp = xlen; | |
3280af22 | 3449 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 3450 | } |
7a4c00b4 | 3451 | if (! mg) { |
3452 | sv_magic(sv, 0, 'o', 0, 0); | |
3453 | mg = mg_find(sv, 'o'); | |
3454 | assert(mg); | |
bbce6d69 | 3455 | } |
7a4c00b4 | 3456 | mg->mg_ptr = xf; |
565764a8 | 3457 | mg->mg_len = xlen; |
7a4c00b4 | 3458 | } |
3459 | else { | |
ff0cee69 | 3460 | if (mg) { |
3461 | mg->mg_ptr = NULL; | |
565764a8 | 3462 | mg->mg_len = -1; |
ff0cee69 | 3463 | } |
bbce6d69 | 3464 | } |
3465 | } | |
7a4c00b4 | 3466 | if (mg && mg->mg_ptr) { |
565764a8 | 3467 | *nxp = mg->mg_len; |
3280af22 | 3468 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 3469 | } |
3470 | else { | |
3471 | *nxp = 0; | |
3472 | return NULL; | |
16660edb | 3473 | } |
79072805 LW |
3474 | } |
3475 | ||
36477c24 | 3476 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 3477 | |
79072805 | 3478 | char * |
76e3520e | 3479 | sv_gets(register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 3480 | { |
aeea060c | 3481 | dTHR; |
c07a80fd | 3482 | char *rsptr; |
3483 | STRLEN rslen; | |
3484 | register STDCHAR rslast; | |
3485 | register STDCHAR *bp; | |
3486 | register I32 cnt; | |
3487 | I32 i; | |
3488 | ||
2213622d | 3489 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 3490 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 3491 | |
ff68c719 | 3492 | SvSCREAM_off(sv); |
c07a80fd | 3493 | |
3280af22 | 3494 | if (RsSNARF(PL_rs)) { |
c07a80fd | 3495 | rsptr = NULL; |
3496 | rslen = 0; | |
3497 | } | |
3280af22 | 3498 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
3499 | I32 recsize, bytesread; |
3500 | char *buffer; | |
3501 | ||
3502 | /* Grab the size of the record we're getting */ | |
3280af22 | 3503 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 3504 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 3505 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
3506 | /* Go yank in */ |
3507 | #ifdef VMS | |
3508 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
3509 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
3510 | /* doing, but we've got no other real choice */ | |
3511 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
3512 | #else | |
3513 | bytesread = PerlIO_read(fp, buffer, recsize); | |
3514 | #endif | |
3515 | SvCUR_set(sv, bytesread); | |
e670df4e | 3516 | buffer[bytesread] = '\0'; |
5b2b9c68 HM |
3517 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
3518 | } | |
3280af22 | 3519 | else if (RsPARA(PL_rs)) { |
c07a80fd | 3520 | rsptr = "\n\n"; |
3521 | rslen = 2; | |
3522 | } | |
3523 | else | |
3280af22 | 3524 | rsptr = SvPV(PL_rs, rslen); |
c07a80fd | 3525 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
3526 | ||
3280af22 | 3527 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
79072805 | 3528 | do { /* to make sure file boundaries work right */ |
760ac839 | 3529 | if (PerlIO_eof(fp)) |
a0d0e21e | 3530 | return 0; |
760ac839 | 3531 | i = PerlIO_getc(fp); |
79072805 | 3532 | if (i != '\n') { |
a0d0e21e LW |
3533 | if (i == -1) |
3534 | return 0; | |
760ac839 | 3535 | PerlIO_ungetc(fp,i); |
79072805 LW |
3536 | break; |
3537 | } | |
3538 | } while (i != EOF); | |
3539 | } | |
c07a80fd | 3540 | |
760ac839 LW |
3541 | /* See if we know enough about I/O mechanism to cheat it ! */ |
3542 | ||
3543 | /* This used to be #ifdef test - it is made run-time test for ease | |
3544 | of abstracting out stdio interface. One call should be cheap | |
3545 | enough here - and may even be a macro allowing compile | |
3546 | time optimization. | |
3547 | */ | |
3548 | ||
3549 | if (PerlIO_fast_gets(fp)) { | |
3550 | ||
3551 | /* | |
3552 | * We're going to steal some values from the stdio struct | |
3553 | * and put EVERYTHING in the innermost loop into registers. | |
3554 | */ | |
3555 | register STDCHAR *ptr; | |
3556 | STRLEN bpx; | |
3557 | I32 shortbuffered; | |
3558 | ||
16660edb | 3559 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
3560 | /* An ungetc()d char is handled separately from the regular | |
3561 | * buffer, so we getc() it back out and stuff it in the buffer. | |
3562 | */ | |
3563 | i = PerlIO_getc(fp); | |
3564 | if (i == EOF) return 0; | |
3565 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
3566 | (*fp)->_cnt++; | |
3567 | #endif | |
c07a80fd | 3568 | |
c2960299 | 3569 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 3570 | |
760ac839 | 3571 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 3572 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
3573 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
3574 | if (cnt > 80 && SvLEN(sv) > append) { | |
3575 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
3576 | cnt -= shortbuffered; | |
3577 | } | |
3578 | else { | |
3579 | shortbuffered = 0; | |
bbce6d69 | 3580 | /* remember that cnt can be negative */ |
3581 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
3582 | } |
3583 | } | |
3584 | else | |
3585 | shortbuffered = 0; | |
c07a80fd | 3586 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
760ac839 | 3587 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 3588 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3589 | "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
16660edb | 3590 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3591 | "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3592 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3593 | (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); | |
79072805 LW |
3594 | for (;;) { |
3595 | screamer: | |
93a17b20 | 3596 | if (cnt > 0) { |
c07a80fd | 3597 | if (rslen) { |
760ac839 LW |
3598 | while (cnt > 0) { /* this | eat */ |
3599 | cnt--; | |
c07a80fd | 3600 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
3601 | goto thats_all_folks; /* screams | sed :-) */ | |
3602 | } | |
3603 | } | |
3604 | else { | |
36477c24 | 3605 | Copy(ptr, bp, cnt, char); /* this | eat */ |
c07a80fd | 3606 | bp += cnt; /* screams | dust */ |
3607 | ptr += cnt; /* louder | sed :-) */ | |
a5f75d66 | 3608 | cnt = 0; |
93a17b20 | 3609 | } |
79072805 LW |
3610 | } |
3611 | ||
748a9306 | 3612 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
3613 | cnt = shortbuffered; |
3614 | shortbuffered = 0; | |
c07a80fd | 3615 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
3616 | SvCUR_set(sv, bpx); |
3617 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 3618 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
3619 | continue; |
3620 | } | |
3621 | ||
16660edb | 3622 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3623 | "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
d1bf51dd | 3624 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ |
16660edb | 3625 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3626 | "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3627 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3628 | (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
16660edb | 3629 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 3630 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
3631 | another abstraction. */ | |
760ac839 | 3632 | i = PerlIO_getc(fp); /* get more characters */ |
16660edb | 3633 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3634 | "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3635 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3636 | (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
760ac839 LW |
3637 | cnt = PerlIO_get_cnt(fp); |
3638 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 3639 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3640 | "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
79072805 | 3641 | |
748a9306 LW |
3642 | if (i == EOF) /* all done for ever? */ |
3643 | goto thats_really_all_folks; | |
3644 | ||
c07a80fd | 3645 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
3646 | SvCUR_set(sv, bpx); |
3647 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 3648 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
3649 | ||
760ac839 | 3650 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 3651 | |
c07a80fd | 3652 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 3653 | goto thats_all_folks; |
79072805 LW |
3654 | } |
3655 | ||
3656 | thats_all_folks: | |
c07a80fd | 3657 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 3658 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 3659 | goto screamer; /* go back to the fray */ |
79072805 LW |
3660 | thats_really_all_folks: |
3661 | if (shortbuffered) | |
3662 | cnt += shortbuffered; | |
16660edb | 3663 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3664 | "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
d1bf51dd | 3665 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 3666 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3667 | "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3668 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3669 | (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
79072805 | 3670 | *bp = '\0'; |
760ac839 | 3671 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 3672 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 3673 | "Screamer: done, len=%ld, string=|%.*s|\n", |
3674 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
3675 | } |
3676 | else | |
79072805 | 3677 | { |
760ac839 | 3678 | /*The big, slow, and stupid way */ |
c07a80fd | 3679 | STDCHAR buf[8192]; |
79072805 | 3680 | |
760ac839 | 3681 | screamer2: |
c07a80fd | 3682 | if (rslen) { |
760ac839 LW |
3683 | register STDCHAR *bpe = buf + sizeof(buf); |
3684 | bp = buf; | |
3685 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
3686 | ; /* keep reading */ | |
3687 | cnt = bp - buf; | |
c07a80fd | 3688 | } |
3689 | else { | |
760ac839 | 3690 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 3691 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
3692 | * both args of ?: operator, causing EOF to change into 255 | |
3693 | */ | |
3694 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 3695 | } |
79072805 LW |
3696 | |
3697 | if (append) | |
760ac839 | 3698 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 3699 | else |
760ac839 | 3700 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 3701 | |
3702 | if (i != EOF && /* joy */ | |
3703 | (!rslen || | |
3704 | SvCUR(sv) < rslen || | |
36477c24 | 3705 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
3706 | { |
3707 | append = -1; | |
63e4d877 CS |
3708 | /* |
3709 | * If we're reading from a TTY and we get a short read, | |
3710 | * indicating that the user hit his EOF character, we need | |
3711 | * to notice it now, because if we try to read from the TTY | |
3712 | * again, the EOF condition will disappear. | |
3713 | * | |
3714 | * The comparison of cnt to sizeof(buf) is an optimization | |
3715 | * that prevents unnecessary calls to feof(). | |
3716 | * | |
3717 | * - jik 9/25/96 | |
3718 | */ | |
3719 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
3720 | goto screamer2; | |
79072805 LW |
3721 | } |
3722 | } | |
3723 | ||
3280af22 | 3724 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
c07a80fd | 3725 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 3726 | i = PerlIO_getc(fp); |
79072805 | 3727 | if (i != '\n') { |
760ac839 | 3728 | PerlIO_ungetc(fp,i); |
79072805 LW |
3729 | break; |
3730 | } | |
3731 | } | |
3732 | } | |
c07a80fd | 3733 | |
a868473f NIS |
3734 | #ifdef WIN32 |
3735 | win32_strip_return(sv); | |
3736 | #endif | |
3737 | ||
c07a80fd | 3738 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
3739 | } |
3740 | ||
760ac839 | 3741 | |
79072805 | 3742 | void |
8ac85365 | 3743 | sv_inc(register SV *sv) |
79072805 LW |
3744 | { |
3745 | register char *d; | |
463ee0b2 | 3746 | int flags; |
79072805 LW |
3747 | |
3748 | if (!sv) | |
3749 | return; | |
b23a5f78 GB |
3750 | if (SvGMAGICAL(sv)) |
3751 | mg_get(sv); | |
ed6116ce | 3752 | if (SvTHINKFIRST(sv)) { |
0f15f207 MB |
3753 | if (SvREADONLY(sv)) { |
3754 | dTHR; | |
3280af22 | 3755 | if (PL_curcop != &PL_compiling) |
22c35a8c | 3756 | croak(PL_no_modify); |
0f15f207 | 3757 | } |
a0d0e21e | 3758 | if (SvROK(sv)) { |
b5be31e9 | 3759 | IV i; |
9e7bc3e8 JD |
3760 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
3761 | return; | |
b5be31e9 SM |
3762 | i = (IV)SvRV(sv); |
3763 | sv_unref(sv); | |
3764 | sv_setiv(sv, i); | |
a0d0e21e | 3765 | } |
ed6116ce | 3766 | } |
8990e307 | 3767 | flags = SvFLAGS(sv); |
8990e307 | 3768 | if (flags & SVp_NOK) { |
a0d0e21e | 3769 | (void)SvNOK_only(sv); |
55497cff | 3770 | SvNVX(sv) += 1.0; |
3771 | return; | |
3772 | } | |
3773 | if (flags & SVp_IOK) { | |
25da4f38 IZ |
3774 | if (SvIsUV(sv)) { |
3775 | if (SvUVX(sv) == UV_MAX) | |
3776 | sv_setnv(sv, (double)UV_MAX + 1.0); | |
3777 | else | |
3778 | (void)SvIOK_only_UV(sv); | |
3779 | ++SvUVX(sv); | |
3780 | } else { | |
3781 | if (SvIVX(sv) == IV_MAX) | |
3782 | sv_setnv(sv, (double)IV_MAX + 1.0); | |
3783 | else { | |
3784 | (void)SvIOK_only(sv); | |
3785 | ++SvIVX(sv); | |
3786 | } | |
55497cff | 3787 | } |
79072805 LW |
3788 | return; |
3789 | } | |
8990e307 | 3790 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
4633a7c4 LW |
3791 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
3792 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 3793 | SvNVX(sv) = 1.0; |
a0d0e21e | 3794 | (void)SvNOK_only(sv); |
79072805 LW |
3795 | return; |
3796 | } | |
463ee0b2 | 3797 | d = SvPVX(sv); |
79072805 LW |
3798 | while (isALPHA(*d)) d++; |
3799 | while (isDIGIT(*d)) d++; | |
3800 | if (*d) { | |
36477c24 | 3801 | SET_NUMERIC_STANDARD(); |
bbce6d69 | 3802 | sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */ |
79072805 LW |
3803 | return; |
3804 | } | |
3805 | d--; | |
463ee0b2 | 3806 | while (d >= SvPVX(sv)) { |
79072805 LW |
3807 | if (isDIGIT(*d)) { |
3808 | if (++*d <= '9') | |
3809 | return; | |
3810 | *(d--) = '0'; | |
3811 | } | |
3812 | else { | |
9d116dd7 JH |
3813 | #ifdef EBCDIC |
3814 | /* MKS: The original code here died if letters weren't consecutive. | |
3815 | * at least it didn't have to worry about non-C locales. The | |
3816 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
3817 | * arranged in order (although not consecutively) and that only | |
3818 | * [A-Za-z] are accepted by isALPHA in the C locale. | |
3819 | */ | |
3820 | if (*d != 'z' && *d != 'Z') { | |
3821 | do { ++*d; } while (!isALPHA(*d)); | |
3822 | return; | |
3823 | } | |
3824 | *(d--) -= 'z' - 'a'; | |
3825 | #else | |
79072805 LW |
3826 | ++*d; |
3827 | if (isALPHA(*d)) | |
3828 | return; | |
3829 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 3830 | #endif |
79072805 LW |
3831 | } |
3832 | } | |
3833 | /* oh,oh, the number grew */ | |
3834 | SvGROW(sv, SvCUR(sv) + 2); | |
3835 | SvCUR(sv)++; | |
463ee0b2 | 3836 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
3837 | *d = d[-1]; |
3838 | if (isDIGIT(d[1])) | |
3839 | *d = '1'; | |
3840 | else | |
3841 | *d = d[1]; | |
3842 | } | |
3843 | ||
3844 | void | |
8ac85365 | 3845 | sv_dec(register SV *sv) |
79072805 | 3846 | { |
463ee0b2 LW |
3847 | int flags; |
3848 | ||
79072805 LW |
3849 | if (!sv) |
3850 | return; | |
b23a5f78 GB |
3851 | if (SvGMAGICAL(sv)) |
3852 | mg_get(sv); | |
ed6116ce | 3853 | if (SvTHINKFIRST(sv)) { |
0f15f207 MB |
3854 | if (SvREADONLY(sv)) { |
3855 | dTHR; | |
3280af22 | 3856 | if (PL_curcop != &PL_compiling) |
22c35a8c | 3857 | croak(PL_no_modify); |
0f15f207 | 3858 | } |
a0d0e21e | 3859 | if (SvROK(sv)) { |
b5be31e9 | 3860 | IV i; |
9e7bc3e8 JD |
3861 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
3862 | return; | |
b5be31e9 SM |
3863 | i = (IV)SvRV(sv); |
3864 | sv_unref(sv); | |
3865 | sv_setiv(sv, i); | |
a0d0e21e | 3866 | } |
ed6116ce | 3867 | } |
8990e307 | 3868 | flags = SvFLAGS(sv); |
8990e307 | 3869 | if (flags & SVp_NOK) { |
463ee0b2 | 3870 | SvNVX(sv) -= 1.0; |
a0d0e21e | 3871 | (void)SvNOK_only(sv); |
79072805 LW |
3872 | return; |
3873 | } | |
55497cff | 3874 | if (flags & SVp_IOK) { |
25da4f38 IZ |
3875 | if (SvIsUV(sv)) { |
3876 | if (SvUVX(sv) == 0) { | |
3877 | (void)SvIOK_only(sv); | |
3878 | SvIVX(sv) = -1; | |
3879 | } | |
3880 | else { | |
3881 | (void)SvIOK_only_UV(sv); | |
3882 | --SvUVX(sv); | |
3883 | } | |
3884 | } else { | |
3885 | if (SvIVX(sv) == IV_MIN) | |
3886 | sv_setnv(sv, (double)IV_MIN - 1.0); | |
3887 | else { | |
3888 | (void)SvIOK_only(sv); | |
3889 | --SvIVX(sv); | |
3890 | } | |
55497cff | 3891 | } |
3892 | return; | |
3893 | } | |
8990e307 | 3894 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
3895 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
3896 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 3897 | SvNVX(sv) = -1.0; |
a0d0e21e | 3898 | (void)SvNOK_only(sv); |
79072805 LW |
3899 | return; |
3900 | } | |
36477c24 | 3901 | SET_NUMERIC_STANDARD(); |
bbce6d69 | 3902 | sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
3903 | } |
3904 | ||
3905 | /* Make a string that will exist for the duration of the expression | |
3906 | * evaluation. Actually, it may have to last longer than that, but | |
3907 | * hopefully we won't free it until it has been assigned to a | |
3908 | * permanent location. */ | |
3909 | ||
3910 | SV * | |
8ac85365 | 3911 | sv_mortalcopy(SV *oldstr) |
79072805 | 3912 | { |
11343788 | 3913 | dTHR; |
463ee0b2 | 3914 | register SV *sv; |
79072805 | 3915 | |
4561caa4 | 3916 | new_SV(sv); |
79072805 | 3917 | sv_setsv(sv,oldstr); |
677b06e3 GS |
3918 | EXTEND_MORTAL(1); |
3919 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
3920 | SvTEMP_on(sv); |
3921 | return sv; | |
3922 | } | |
3923 | ||
3924 | SV * | |
8ac85365 | 3925 | sv_newmortal(void) |
8990e307 | 3926 | { |
11343788 | 3927 | dTHR; |
8990e307 LW |
3928 | register SV *sv; |
3929 | ||
4561caa4 | 3930 | new_SV(sv); |
8990e307 | 3931 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
3932 | EXTEND_MORTAL(1); |
3933 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
3934 | return sv; |
3935 | } | |
3936 | ||
3937 | /* same thing without the copying */ | |
3938 | ||
3939 | SV * | |
8ac85365 | 3940 | sv_2mortal(register SV *sv) |
79072805 | 3941 | { |
11343788 | 3942 | dTHR; |
79072805 LW |
3943 | if (!sv) |
3944 | return sv; | |
d689ffdd | 3945 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 3946 | return sv; |
677b06e3 GS |
3947 | EXTEND_MORTAL(1); |
3948 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 3949 | SvTEMP_on(sv); |
79072805 LW |
3950 | return sv; |
3951 | } | |
3952 | ||
3953 | SV * | |
08105a92 | 3954 | newSVpv(const char *s, STRLEN len) |
79072805 | 3955 | { |
463ee0b2 | 3956 | register SV *sv; |
79072805 | 3957 | |
4561caa4 | 3958 | new_SV(sv); |
79072805 LW |
3959 | if (!len) |
3960 | len = strlen(s); | |
3961 | sv_setpvn(sv,s,len); | |
3962 | return sv; | |
3963 | } | |
3964 | ||
9da1e3b5 | 3965 | SV * |
08105a92 | 3966 | newSVpvn(const char *s, STRLEN len) |
9da1e3b5 MUN |
3967 | { |
3968 | register SV *sv; | |
3969 | ||
3970 | new_SV(sv); | |
9da1e3b5 MUN |
3971 | sv_setpvn(sv,s,len); |
3972 | return sv; | |
3973 | } | |
3974 | ||
46fc3d4c | 3975 | SV * |
3976 | newSVpvf(const char* pat, ...) | |
46fc3d4c | 3977 | { |
3978 | register SV *sv; | |
3979 | va_list args; | |
3980 | ||
3981 | new_SV(sv); | |
46fc3d4c | 3982 | va_start(args, pat); |
fc36a67e | 3983 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 3984 | va_end(args); |
3985 | return sv; | |
3986 | } | |
3987 | ||
3988 | ||
79072805 | 3989 | SV * |
8ac85365 | 3990 | newSVnv(double n) |
79072805 | 3991 | { |
463ee0b2 | 3992 | register SV *sv; |
79072805 | 3993 | |
4561caa4 | 3994 | new_SV(sv); |
79072805 LW |
3995 | sv_setnv(sv,n); |
3996 | return sv; | |
3997 | } | |
3998 | ||
3999 | SV * | |
8ac85365 | 4000 | newSViv(IV i) |
79072805 | 4001 | { |
463ee0b2 | 4002 | register SV *sv; |
79072805 | 4003 | |
4561caa4 | 4004 | new_SV(sv); |
79072805 LW |
4005 | sv_setiv(sv,i); |
4006 | return sv; | |
4007 | } | |
4008 | ||
2304df62 | 4009 | SV * |
d689ffdd | 4010 | newRV_noinc(SV *tmpRef) |
2304df62 | 4011 | { |
11343788 | 4012 | dTHR; |
2304df62 AD |
4013 | register SV *sv; |
4014 | ||
4561caa4 | 4015 | new_SV(sv); |
2304df62 | 4016 | sv_upgrade(sv, SVt_RV); |
76e3520e | 4017 | SvTEMP_off(tmpRef); |
d689ffdd | 4018 | SvRV(sv) = tmpRef; |
2304df62 | 4019 | SvROK_on(sv); |
2304df62 AD |
4020 | return sv; |
4021 | } | |
4022 | ||
5f05dabc | 4023 | SV * |
d689ffdd | 4024 | newRV(SV *tmpRef) |
5f05dabc | 4025 | { |
5f6447b6 | 4026 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 4027 | } |
5f05dabc | 4028 | |
79072805 LW |
4029 | /* make an exact duplicate of old */ |
4030 | ||
4031 | SV * | |
8ac85365 | 4032 | newSVsv(register SV *old) |
79072805 | 4033 | { |
463ee0b2 | 4034 | register SV *sv; |
79072805 LW |
4035 | |
4036 | if (!old) | |
4037 | return Nullsv; | |
8990e307 | 4038 | if (SvTYPE(old) == SVTYPEMASK) { |
79072805 LW |
4039 | warn("semi-panic: attempt to dup freed string"); |
4040 | return Nullsv; | |
4041 | } | |
4561caa4 | 4042 | new_SV(sv); |
ff68c719 | 4043 | if (SvTEMP(old)) { |
4044 | SvTEMP_off(old); | |
463ee0b2 | 4045 | sv_setsv(sv,old); |
ff68c719 | 4046 | SvTEMP_on(old); |
79072805 LW |
4047 | } |
4048 | else | |
463ee0b2 LW |
4049 | sv_setsv(sv,old); |
4050 | return sv; | |
79072805 LW |
4051 | } |
4052 | ||
4053 | void | |
8ac85365 | 4054 | sv_reset(register char *s, HV *stash) |
79072805 LW |
4055 | { |
4056 | register HE *entry; | |
4057 | register GV *gv; | |
4058 | register SV *sv; | |
4059 | register I32 i; | |
4060 | register PMOP *pm; | |
4061 | register I32 max; | |
463ee0b2 | 4062 | char todo[256]; |
79072805 | 4063 | |
49d8d3a1 MB |
4064 | if (!stash) |
4065 | return; | |
4066 | ||
79072805 LW |
4067 | if (!*s) { /* reset ?? searches */ |
4068 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 4069 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
4070 | } |
4071 | return; | |
4072 | } | |
4073 | ||
4074 | /* reset variables */ | |
4075 | ||
4076 | if (!HvARRAY(stash)) | |
4077 | return; | |
463ee0b2 LW |
4078 | |
4079 | Zero(todo, 256, char); | |
79072805 LW |
4080 | while (*s) { |
4081 | i = *s; | |
4082 | if (s[1] == '-') { | |
4083 | s += 2; | |
4084 | } | |
4085 | max = *s++; | |
4086 | for ( ; i <= max; i++) { | |
463ee0b2 LW |
4087 | todo[i] = 1; |
4088 | } | |
a0d0e21e | 4089 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 4090 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
4091 | entry; |
4092 | entry = HeNEXT(entry)) | |
4093 | { | |
1edc1566 | 4094 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 4095 | continue; |
1edc1566 | 4096 | gv = (GV*)HeVAL(entry); |
79072805 | 4097 | sv = GvSV(gv); |
9e35f4b3 GS |
4098 | if (SvTHINKFIRST(sv)) { |
4099 | if (!SvREADONLY(sv) && SvROK(sv)) | |
4100 | sv_unref(sv); | |
4101 | continue; | |
4102 | } | |
a0d0e21e | 4103 | (void)SvOK_off(sv); |
79072805 LW |
4104 | if (SvTYPE(sv) >= SVt_PV) { |
4105 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
4106 | if (SvPVX(sv) != Nullch) |
4107 | *SvPVX(sv) = '\0'; | |
44a8e56a | 4108 | SvTAINT(sv); |
79072805 LW |
4109 | } |
4110 | if (GvAV(gv)) { | |
4111 | av_clear(GvAV(gv)); | |
4112 | } | |
44a8e56a | 4113 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 4114 | hv_clear(GvHV(gv)); |
a0d0e21e | 4115 | #ifndef VMS /* VMS has no environ array */ |
3280af22 | 4116 | if (gv == PL_envgv) |
79072805 | 4117 | environ[0] = Nullch; |
a0d0e21e | 4118 | #endif |
79072805 LW |
4119 | } |
4120 | } | |
4121 | } | |
4122 | } | |
4123 | } | |
4124 | ||
46fc3d4c | 4125 | IO* |
8ac85365 | 4126 | sv_2io(SV *sv) |
46fc3d4c | 4127 | { |
4128 | IO* io; | |
4129 | GV* gv; | |
2d8e6c8d | 4130 | STRLEN n_a; |
46fc3d4c | 4131 | |
4132 | switch (SvTYPE(sv)) { | |
4133 | case SVt_PVIO: | |
4134 | io = (IO*)sv; | |
4135 | break; | |
4136 | case SVt_PVGV: | |
4137 | gv = (GV*)sv; | |
4138 | io = GvIO(gv); | |
4139 | if (!io) | |
4140 | croak("Bad filehandle: %s", GvNAME(gv)); | |
4141 | break; | |
4142 | default: | |
4143 | if (!SvOK(sv)) | |
22c35a8c | 4144 | croak(PL_no_usym, "filehandle"); |
46fc3d4c | 4145 | if (SvROK(sv)) |
4146 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 4147 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 4148 | if (gv) |
4149 | io = GvIO(gv); | |
4150 | else | |
4151 | io = 0; | |
4152 | if (!io) | |
2d8e6c8d | 4153 | croak("Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 4154 | break; |
4155 | } | |
4156 | return io; | |
4157 | } | |
4158 | ||
79072805 | 4159 | CV * |
8ac85365 | 4160 | sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 LW |
4161 | { |
4162 | GV *gv; | |
4163 | CV *cv; | |
2d8e6c8d | 4164 | STRLEN n_a; |
79072805 LW |
4165 | |
4166 | if (!sv) | |
93a17b20 | 4167 | return *gvp = Nullgv, Nullcv; |
79072805 | 4168 | switch (SvTYPE(sv)) { |
79072805 LW |
4169 | case SVt_PVCV: |
4170 | *st = CvSTASH(sv); | |
4171 | *gvp = Nullgv; | |
4172 | return (CV*)sv; | |
4173 | case SVt_PVHV: | |
4174 | case SVt_PVAV: | |
4175 | *gvp = Nullgv; | |
4176 | return Nullcv; | |
8990e307 LW |
4177 | case SVt_PVGV: |
4178 | gv = (GV*)sv; | |
a0d0e21e | 4179 | *gvp = gv; |
8990e307 LW |
4180 | *st = GvESTASH(gv); |
4181 | goto fix_gv; | |
4182 | ||
79072805 | 4183 | default: |
a0d0e21e LW |
4184 | if (SvGMAGICAL(sv)) |
4185 | mg_get(sv); | |
4186 | if (SvROK(sv)) { | |
0f4592ef | 4187 | dTHR; |
f5284f61 IZ |
4188 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
4189 | tryAMAGICunDEREF(to_cv); | |
4190 | ||
62f274bf GS |
4191 | sv = SvRV(sv); |
4192 | if (SvTYPE(sv) == SVt_PVCV) { | |
4193 | cv = (CV*)sv; | |
4194 | *gvp = Nullgv; | |
4195 | *st = CvSTASH(cv); | |
4196 | return cv; | |
4197 | } | |
4198 | else if(isGV(sv)) | |
4199 | gv = (GV*)sv; | |
4200 | else | |
a0d0e21e | 4201 | croak("Not a subroutine reference"); |
a0d0e21e | 4202 | } |
62f274bf | 4203 | else if (isGV(sv)) |
79072805 LW |
4204 | gv = (GV*)sv; |
4205 | else | |
2d8e6c8d | 4206 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
4207 | *gvp = gv; |
4208 | if (!gv) | |
4209 | return Nullcv; | |
4210 | *st = GvESTASH(gv); | |
8990e307 | 4211 | fix_gv: |
8ebc5c01 | 4212 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 4213 | SV *tmpsv; |
748a9306 | 4214 | ENTER; |
4633a7c4 | 4215 | tmpsv = NEWSV(704,0); |
16660edb | 4216 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
4217 | /* XXX this is probably not what they think they're getting. |
4218 | * It has the same effect as "sub name;", i.e. just a forward | |
4219 | * declaration! */ | |
774d564b | 4220 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
4221 | newSVOP(OP_CONST, 0, tmpsv), |
4222 | Nullop, | |
8990e307 | 4223 | Nullop); |
748a9306 | 4224 | LEAVE; |
8ebc5c01 | 4225 | if (!GvCVu(gv)) |
2d8e6c8d | 4226 | croak("Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 4227 | } |
8ebc5c01 | 4228 | return GvCVu(gv); |
79072805 LW |
4229 | } |
4230 | } | |
4231 | ||
79072805 | 4232 | I32 |
4e35701f | 4233 | sv_true(register SV *sv) |
79072805 | 4234 | { |
4e35701f | 4235 | dTHR; |
8990e307 LW |
4236 | if (!sv) |
4237 | return 0; | |
79072805 | 4238 | if (SvPOK(sv)) { |
4e35701f NIS |
4239 | register XPV* tXpv; |
4240 | if ((tXpv = (XPV*)SvANY(sv)) && | |
4241 | (*tXpv->xpv_pv > '0' || | |
4242 | tXpv->xpv_cur > 1 || | |
4243 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) | |
79072805 LW |
4244 | return 1; |
4245 | else | |
4246 | return 0; | |
4247 | } | |
4248 | else { | |
4249 | if (SvIOK(sv)) | |
463ee0b2 | 4250 | return SvIVX(sv) != 0; |
79072805 LW |
4251 | else { |
4252 | if (SvNOK(sv)) | |
463ee0b2 | 4253 | return SvNVX(sv) != 0.0; |
79072805 | 4254 | else |
463ee0b2 | 4255 | return sv_2bool(sv); |
79072805 LW |
4256 | } |
4257 | } | |
4258 | } | |
79072805 | 4259 | |
ff68c719 | 4260 | IV |
4e35701f | 4261 | sv_iv(register SV *sv) |
85e6fe83 | 4262 | { |
25da4f38 IZ |
4263 | if (SvIOK(sv)) { |
4264 | if (SvIsUV(sv)) | |
4265 | return (IV)SvUVX(sv); | |
ff68c719 | 4266 | return SvIVX(sv); |
25da4f38 | 4267 | } |
ff68c719 | 4268 | return sv_2iv(sv); |
85e6fe83 | 4269 | } |
85e6fe83 | 4270 | |
ff68c719 | 4271 | UV |
4e35701f | 4272 | sv_uv(register SV *sv) |
ff68c719 | 4273 | { |
25da4f38 IZ |
4274 | if (SvIOK(sv)) { |
4275 | if (SvIsUV(sv)) | |
4276 | return SvUVX(sv); | |
4277 | return (UV)SvIVX(sv); | |
4278 | } | |
ff68c719 | 4279 | return sv_2uv(sv); |
4280 | } | |
85e6fe83 | 4281 | |
ff68c719 | 4282 | double |
4e35701f | 4283 | sv_nv(register SV *sv) |
79072805 | 4284 | { |
ff68c719 | 4285 | if (SvNOK(sv)) |
4286 | return SvNVX(sv); | |
4287 | return sv_2nv(sv); | |
79072805 | 4288 | } |
79072805 | 4289 | |
79072805 | 4290 | char * |
1fa8b10d JD |
4291 | sv_pv(SV *sv) |
4292 | { | |
4293 | STRLEN n_a; | |
4294 | ||
4295 | if (SvPOK(sv)) | |
4296 | return SvPVX(sv); | |
4297 | ||
4298 | return sv_2pv(sv, &n_a); | |
4299 | } | |
4300 | ||
4301 | char * | |
8ac85365 | 4302 | sv_pvn(SV *sv, STRLEN *lp) |
79072805 | 4303 | { |
85e6fe83 LW |
4304 | if (SvPOK(sv)) { |
4305 | *lp = SvCUR(sv); | |
a0d0e21e | 4306 | return SvPVX(sv); |
85e6fe83 | 4307 | } |
463ee0b2 | 4308 | return sv_2pv(sv, lp); |
79072805 | 4309 | } |
79072805 | 4310 | |
a0d0e21e | 4311 | char * |
8ac85365 | 4312 | sv_pvn_force(SV *sv, STRLEN *lp) |
a0d0e21e LW |
4313 | { |
4314 | char *s; | |
4315 | ||
6fc92669 GS |
4316 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
4317 | sv_force_normal(sv); | |
a0d0e21e LW |
4318 | |
4319 | if (SvPOK(sv)) { | |
4320 | *lp = SvCUR(sv); | |
4321 | } | |
4322 | else { | |
748a9306 | 4323 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
6fc92669 GS |
4324 | dTHR; |
4325 | croak("Can't coerce %s to string in %s", sv_reftype(sv,0), | |
4326 | PL_op_name[PL_op->op_type]); | |
a0d0e21e | 4327 | } |
4633a7c4 LW |
4328 | else |
4329 | s = sv_2pv(sv, lp); | |
a0d0e21e LW |
4330 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
4331 | STRLEN len = *lp; | |
4332 | ||
4333 | if (SvROK(sv)) | |
4334 | sv_unref(sv); | |
4335 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
4336 | SvGROW(sv, len + 1); | |
4337 | Move(s,SvPVX(sv),len,char); | |
4338 | SvCUR_set(sv, len); | |
4339 | *SvEND(sv) = '\0'; | |
4340 | } | |
4341 | if (!SvPOK(sv)) { | |
4342 | SvPOK_on(sv); /* validate pointer */ | |
4343 | SvTAINT(sv); | |
760ac839 | 4344 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n", |
a0d0e21e LW |
4345 | (unsigned long)sv,SvPVX(sv))); |
4346 | } | |
4347 | } | |
4348 | return SvPVX(sv); | |
4349 | } | |
4350 | ||
4351 | char * | |
8ac85365 | 4352 | sv_reftype(SV *sv, int ob) |
a0d0e21e LW |
4353 | { |
4354 | if (ob && SvOBJECT(sv)) | |
4355 | return HvNAME(SvSTASH(sv)); | |
4356 | else { | |
4357 | switch (SvTYPE(sv)) { | |
4358 | case SVt_NULL: | |
4359 | case SVt_IV: | |
4360 | case SVt_NV: | |
4361 | case SVt_RV: | |
4362 | case SVt_PV: | |
4363 | case SVt_PVIV: | |
4364 | case SVt_PVNV: | |
4365 | case SVt_PVMG: | |
4366 | case SVt_PVBM: | |
4367 | if (SvROK(sv)) | |
4368 | return "REF"; | |
4369 | else | |
4370 | return "SCALAR"; | |
4371 | case SVt_PVLV: return "LVALUE"; | |
4372 | case SVt_PVAV: return "ARRAY"; | |
4373 | case SVt_PVHV: return "HASH"; | |
4374 | case SVt_PVCV: return "CODE"; | |
4375 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 4376 | case SVt_PVFM: return "FORMAT"; |
a0d0e21e LW |
4377 | default: return "UNKNOWN"; |
4378 | } | |
4379 | } | |
4380 | } | |
4381 | ||
463ee0b2 | 4382 | int |
8ac85365 | 4383 | sv_isobject(SV *sv) |
85e6fe83 | 4384 | { |
68dc0745 | 4385 | if (!sv) |
4386 | return 0; | |
4387 | if (SvGMAGICAL(sv)) | |
4388 | mg_get(sv); | |
85e6fe83 LW |
4389 | if (!SvROK(sv)) |
4390 | return 0; | |
4391 | sv = (SV*)SvRV(sv); | |
4392 | if (!SvOBJECT(sv)) | |
4393 | return 0; | |
4394 | return 1; | |
4395 | } | |
4396 | ||
4397 | int | |
08105a92 | 4398 | sv_isa(SV *sv, const char *name) |
463ee0b2 | 4399 | { |
68dc0745 | 4400 | if (!sv) |
4401 | return 0; | |
4402 | if (SvGMAGICAL(sv)) | |
4403 | mg_get(sv); | |
ed6116ce | 4404 | if (!SvROK(sv)) |
463ee0b2 | 4405 | return 0; |
ed6116ce LW |
4406 | sv = (SV*)SvRV(sv); |
4407 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
4408 | return 0; |
4409 | ||
4410 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
4411 | } | |
4412 | ||
4413 | SV* | |
08105a92 | 4414 | newSVrv(SV *rv, const char *classname) |
463ee0b2 | 4415 | { |
11343788 | 4416 | dTHR; |
463ee0b2 LW |
4417 | SV *sv; |
4418 | ||
4561caa4 | 4419 | new_SV(sv); |
51cf62d8 | 4420 | |
2213622d | 4421 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 4422 | SvAMAGIC_off(rv); |
51cf62d8 OT |
4423 | |
4424 | if (SvTYPE(rv) < SVt_RV) | |
4425 | sv_upgrade(rv, SVt_RV); | |
4426 | ||
4427 | (void)SvOK_off(rv); | |
053fc874 | 4428 | SvRV(rv) = sv; |
ed6116ce | 4429 | SvROK_on(rv); |
463ee0b2 | 4430 | |
a0d0e21e LW |
4431 | if (classname) { |
4432 | HV* stash = gv_stashpv(classname, TRUE); | |
4433 | (void)sv_bless(rv, stash); | |
4434 | } | |
4435 | return sv; | |
4436 | } | |
4437 | ||
4438 | SV* | |
08105a92 | 4439 | sv_setref_pv(SV *rv, const char *classname, void *pv) |
a0d0e21e | 4440 | { |
189b2af5 | 4441 | if (!pv) { |
3280af22 | 4442 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
4443 | SvSETMAGIC(rv); |
4444 | } | |
a0d0e21e LW |
4445 | else |
4446 | sv_setiv(newSVrv(rv,classname), (IV)pv); | |
4447 | return rv; | |
4448 | } | |
4449 | ||
4450 | SV* | |
08105a92 | 4451 | sv_setref_iv(SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
4452 | { |
4453 | sv_setiv(newSVrv(rv,classname), iv); | |
4454 | return rv; | |
4455 | } | |
4456 | ||
4457 | SV* | |
08105a92 | 4458 | sv_setref_nv(SV *rv, const char *classname, double nv) |
a0d0e21e LW |
4459 | { |
4460 | sv_setnv(newSVrv(rv,classname), nv); | |
4461 | return rv; | |
4462 | } | |
463ee0b2 | 4463 | |
a0d0e21e | 4464 | SV* |
e65f3abd | 4465 | sv_setref_pvn(SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
4466 | { |
4467 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
4468 | return rv; |
4469 | } | |
4470 | ||
a0d0e21e | 4471 | SV* |
8ac85365 | 4472 | sv_bless(SV *sv, HV *stash) |
a0d0e21e | 4473 | { |
11343788 | 4474 | dTHR; |
76e3520e | 4475 | SV *tmpRef; |
a0d0e21e LW |
4476 | if (!SvROK(sv)) |
4477 | croak("Can't bless non-reference value"); | |
76e3520e GS |
4478 | tmpRef = SvRV(sv); |
4479 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
4480 | if (SvREADONLY(tmpRef)) | |
22c35a8c | 4481 | croak(PL_no_modify); |
76e3520e GS |
4482 | if (SvOBJECT(tmpRef)) { |
4483 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 4484 | --PL_sv_objcount; |
76e3520e | 4485 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 4486 | } |
a0d0e21e | 4487 | } |
76e3520e GS |
4488 | SvOBJECT_on(tmpRef); |
4489 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 4490 | ++PL_sv_objcount; |
76e3520e GS |
4491 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
4492 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 4493 | |
2e3febc6 CS |
4494 | if (Gv_AMG(stash)) |
4495 | SvAMAGIC_on(sv); | |
4496 | else | |
4497 | SvAMAGIC_off(sv); | |
a0d0e21e LW |
4498 | |
4499 | return sv; | |
4500 | } | |
4501 | ||
76e3520e | 4502 | STATIC void |
8ac85365 | 4503 | sv_unglob(SV *sv) |
a0d0e21e LW |
4504 | { |
4505 | assert(SvTYPE(sv) == SVt_PVGV); | |
4506 | SvFAKE_off(sv); | |
4507 | if (GvGP(sv)) | |
1edc1566 | 4508 | gp_free((GV*)sv); |
e826b3c7 GS |
4509 | if (GvSTASH(sv)) { |
4510 | SvREFCNT_dec(GvSTASH(sv)); | |
4511 | GvSTASH(sv) = Nullhv; | |
4512 | } | |
a0d0e21e LW |
4513 | sv_unmagic(sv, '*'); |
4514 | Safefree(GvNAME(sv)); | |
a5f75d66 | 4515 | GvMULTI_off(sv); |
a0d0e21e LW |
4516 | SvFLAGS(sv) &= ~SVTYPEMASK; |
4517 | SvFLAGS(sv) |= SVt_PVMG; | |
4518 | } | |
4519 | ||
ed6116ce | 4520 | void |
8ac85365 | 4521 | sv_unref(SV *sv) |
ed6116ce | 4522 | { |
a0d0e21e | 4523 | SV* rv = SvRV(sv); |
810b8aa5 GS |
4524 | |
4525 | if (SvWEAKREF(sv)) { | |
4526 | sv_del_backref(sv); | |
4527 | SvWEAKREF_off(sv); | |
4528 | SvRV(sv) = 0; | |
4529 | return; | |
4530 | } | |
ed6116ce LW |
4531 | SvRV(sv) = 0; |
4532 | SvROK_off(sv); | |
4633a7c4 LW |
4533 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv)) |
4534 | SvREFCNT_dec(rv); | |
8e07c86e | 4535 | else |
4633a7c4 | 4536 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 4537 | } |
8990e307 | 4538 | |
bbce6d69 | 4539 | void |
8ac85365 | 4540 | sv_taint(SV *sv) |
bbce6d69 | 4541 | { |
4542 | sv_magic((sv), Nullsv, 't', Nullch, 0); | |
4543 | } | |
4544 | ||
4545 | void | |
8ac85365 | 4546 | sv_untaint(SV *sv) |
bbce6d69 | 4547 | { |
13f57bf8 | 4548 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
36477c24 | 4549 | MAGIC *mg = mg_find(sv, 't'); |
4550 | if (mg) | |
565764a8 | 4551 | mg->mg_len &= ~1; |
36477c24 | 4552 | } |
bbce6d69 | 4553 | } |
4554 | ||
4555 | bool | |
8ac85365 | 4556 | sv_tainted(SV *sv) |
bbce6d69 | 4557 | { |
13f57bf8 | 4558 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
36477c24 | 4559 | MAGIC *mg = mg_find(sv, 't'); |
565764a8 | 4560 | if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv)) |
36477c24 | 4561 | return TRUE; |
4562 | } | |
4563 | return FALSE; | |
bbce6d69 | 4564 | } |
4565 | ||
84902520 | 4566 | void |
8ac85365 | 4567 | sv_setpviv(SV *sv, IV iv) |
84902520 | 4568 | { |
25da4f38 IZ |
4569 | char buf[TYPE_CHARS(UV)]; |
4570 | char *ebuf; | |
4571 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
84902520 | 4572 | |
25da4f38 | 4573 | sv_setpvn(sv, ptr, ebuf - ptr); |
84902520 TB |
4574 | } |
4575 | ||
ef50df4b GS |
4576 | |
4577 | void | |
4578 | sv_setpviv_mg(SV *sv, IV iv) | |
4579 | { | |
25da4f38 IZ |
4580 | char buf[TYPE_CHARS(UV)]; |
4581 | char *ebuf; | |
4582 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
4583 | ||
4584 | sv_setpvn(sv, ptr, ebuf - ptr); | |
ef50df4b GS |
4585 | SvSETMAGIC(sv); |
4586 | } | |
4587 | ||
46fc3d4c | 4588 | void |
4589 | sv_setpvf(SV *sv, const char* pat, ...) | |
46fc3d4c | 4590 | { |
4591 | va_list args; | |
46fc3d4c | 4592 | va_start(args, pat); |
fc36a67e | 4593 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 4594 | va_end(args); |
4595 | } | |
4596 | ||
ef50df4b | 4597 | |
ef50df4b GS |
4598 | void |
4599 | sv_setpvf_mg(SV *sv, const char* pat, ...) | |
ef50df4b GS |
4600 | { |
4601 | va_list args; | |
ef50df4b | 4602 | va_start(args, pat); |
ef50df4b GS |
4603 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
4604 | va_end(args); | |
4605 | SvSETMAGIC(sv); | |
4606 | } | |
4607 | ||
46fc3d4c | 4608 | void |
4609 | sv_catpvf(SV *sv, const char* pat, ...) | |
46fc3d4c | 4610 | { |
4611 | va_list args; | |
46fc3d4c | 4612 | va_start(args, pat); |
fc36a67e | 4613 | sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 4614 | va_end(args); |
4615 | } | |
4616 | ||
ef50df4b GS |
4617 | void |
4618 | sv_catpvf_mg(SV *sv, const char* pat, ...) | |
ef50df4b GS |
4619 | { |
4620 | va_list args; | |
ef50df4b | 4621 | va_start(args, pat); |
ef50df4b GS |
4622 | sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
4623 | va_end(args); | |
4624 | SvSETMAGIC(sv); | |
4625 | } | |
4626 | ||
46fc3d4c | 4627 | void |
ad8d18a8 | 4628 | sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale) |
46fc3d4c | 4629 | { |
4630 | sv_setpvn(sv, "", 0); | |
4631 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale); | |
4632 | } | |
4633 | ||
4634 | void | |
ad8d18a8 | 4635 | sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale) |
46fc3d4c | 4636 | { |
e858de61 | 4637 | dTHR; |
46fc3d4c | 4638 | char *p; |
4639 | char *q; | |
4640 | char *patend; | |
fc36a67e | 4641 | STRLEN origlen; |
46fc3d4c | 4642 | I32 svix = 0; |
c635e13b | 4643 | static char nullstr[] = "(null)"; |
46fc3d4c | 4644 | |
4645 | /* no matter what, this is a string now */ | |
fc36a67e | 4646 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 4647 | |
fc36a67e | 4648 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 4649 | if (patlen == 0) |
4650 | return; | |
fc36a67e | 4651 | if (patlen == 2 && pat[0] == '%') { |
4652 | switch (pat[1]) { | |
4653 | case 's': | |
c635e13b | 4654 | if (args) { |
4655 | char *s = va_arg(*args, char*); | |
4656 | sv_catpv(sv, s ? s : nullstr); | |
4657 | } | |
fc36a67e | 4658 | else if (svix < svmax) |
4659 | sv_catsv(sv, *svargs); | |
4660 | return; | |
4661 | case '_': | |
4662 | if (args) { | |
4663 | sv_catsv(sv, va_arg(*args, SV*)); | |
4664 | return; | |
4665 | } | |
4666 | /* See comment on '_' below */ | |
4667 | break; | |
4668 | } | |
46fc3d4c | 4669 | } |
4670 | ||
4671 | patend = (char*)pat + patlen; | |
4672 | for (p = (char*)pat; p < patend; p = q) { | |
4673 | bool alt = FALSE; | |
4674 | bool left = FALSE; | |
4675 | char fill = ' '; | |
4676 | char plus = 0; | |
4677 | char intsize = 0; | |
4678 | STRLEN width = 0; | |
fc36a67e | 4679 | STRLEN zeros = 0; |
46fc3d4c | 4680 | bool has_precis = FALSE; |
4681 | STRLEN precis = 0; | |
4682 | ||
4683 | char esignbuf[4]; | |
dfe13c55 | 4684 | U8 utf8buf[10]; |
46fc3d4c | 4685 | STRLEN esignlen = 0; |
4686 | ||
4687 | char *eptr = Nullch; | |
fc36a67e | 4688 | STRLEN elen = 0; |
4689 | char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */ | |
46fc3d4c | 4690 | char c; |
4691 | int i; | |
4692 | unsigned base; | |
4693 | IV iv; | |
4694 | UV uv; | |
4695 | double nv; | |
4696 | STRLEN have; | |
4697 | STRLEN need; | |
4698 | STRLEN gap; | |
4699 | ||
4700 | for (q = p; q < patend && *q != '%'; ++q) ; | |
4701 | if (q > p) { | |
4702 | sv_catpvn(sv, p, q - p); | |
4703 | p = q; | |
4704 | } | |
4705 | if (q++ >= patend) | |
4706 | break; | |
4707 | ||
fc36a67e | 4708 | /* FLAGS */ |
4709 | ||
46fc3d4c | 4710 | while (*q) { |
4711 | switch (*q) { | |
4712 | case ' ': | |
4713 | case '+': | |
4714 | plus = *q++; | |
4715 | continue; | |
4716 | ||
4717 | case '-': | |
4718 | left = TRUE; | |
4719 | q++; | |
4720 | continue; | |
4721 | ||
4722 | case '0': | |
4723 | fill = *q++; | |
4724 | continue; | |
4725 | ||
4726 | case '#': | |
4727 | alt = TRUE; | |
4728 | q++; | |
4729 | continue; | |
4730 | ||
fc36a67e | 4731 | default: |
4732 | break; | |
4733 | } | |
4734 | break; | |
4735 | } | |
46fc3d4c | 4736 | |
fc36a67e | 4737 | /* WIDTH */ |
4738 | ||
4739 | switch (*q) { | |
4740 | case '1': case '2': case '3': | |
4741 | case '4': case '5': case '6': | |
4742 | case '7': case '8': case '9': | |
4743 | width = 0; | |
4744 | while (isDIGIT(*q)) | |
4745 | width = width * 10 + (*q++ - '0'); | |
4746 | break; | |
4747 | ||
4748 | case '*': | |
4749 | if (args) | |
4750 | i = va_arg(*args, int); | |
4751 | else | |
4752 | i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4753 | left |= (i < 0); | |
4754 | width = (i < 0) ? -i : i; | |
4755 | q++; | |
4756 | break; | |
4757 | } | |
4758 | ||
4759 | /* PRECISION */ | |
46fc3d4c | 4760 | |
fc36a67e | 4761 | if (*q == '.') { |
4762 | q++; | |
4763 | if (*q == '*') { | |
46fc3d4c | 4764 | if (args) |
4765 | i = va_arg(*args, int); | |
4766 | else | |
4767 | i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
fc36a67e | 4768 | precis = (i < 0) ? 0 : i; |
46fc3d4c | 4769 | q++; |
fc36a67e | 4770 | } |
4771 | else { | |
4772 | precis = 0; | |
4773 | while (isDIGIT(*q)) | |
4774 | precis = precis * 10 + (*q++ - '0'); | |
4775 | } | |
4776 | has_precis = TRUE; | |
4777 | } | |
46fc3d4c | 4778 | |
fc36a67e | 4779 | /* SIZE */ |
46fc3d4c | 4780 | |
fc36a67e | 4781 | switch (*q) { |
4782 | case 'l': | |
4783 | #if 0 /* when quads have better support within Perl */ | |
4784 | if (*(q + 1) == 'l') { | |
4785 | intsize = 'q'; | |
4786 | q += 2; | |
46fc3d4c | 4787 | break; |
4788 | } | |
fc36a67e | 4789 | #endif |
4790 | /* FALL THROUGH */ | |
4791 | case 'h': | |
4792 | case 'V': | |
4793 | intsize = *q++; | |
46fc3d4c | 4794 | break; |
4795 | } | |
4796 | ||
fc36a67e | 4797 | /* CONVERSION */ |
4798 | ||
46fc3d4c | 4799 | switch (c = *q++) { |
4800 | ||
4801 | /* STRINGS */ | |
4802 | ||
4803 | case '%': | |
4804 | eptr = q - 1; | |
4805 | elen = 1; | |
4806 | goto string; | |
4807 | ||
4808 | case 'c': | |
a0ed51b3 LW |
4809 | if (IN_UTF8) { |
4810 | if (args) | |
4811 | uv = va_arg(*args, int); | |
4812 | else | |
4813 | uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4814 | ||
dfe13c55 GS |
4815 | eptr = (char*)utf8buf; |
4816 | elen = uv_to_utf8((U8*)eptr, uv) - utf8buf; | |
a0ed51b3 LW |
4817 | goto string; |
4818 | } | |
46fc3d4c | 4819 | if (args) |
4820 | c = va_arg(*args, int); | |
4821 | else | |
4822 | c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4823 | eptr = &c; | |
4824 | elen = 1; | |
4825 | goto string; | |
4826 | ||
46fc3d4c | 4827 | case 's': |
4828 | if (args) { | |
fc36a67e | 4829 | eptr = va_arg(*args, char*); |
c635e13b | 4830 | if (eptr) |
4831 | elen = strlen(eptr); | |
4832 | else { | |
4833 | eptr = nullstr; | |
4834 | elen = sizeof nullstr - 1; | |
4835 | } | |
46fc3d4c | 4836 | } |
a0ed51b3 | 4837 | else if (svix < svmax) { |
46fc3d4c | 4838 | eptr = SvPVx(svargs[svix++], elen); |
a0ed51b3 LW |
4839 | if (IN_UTF8) { |
4840 | if (has_precis && precis < elen) { | |
4841 | I32 p = precis; | |
4842 | sv_pos_u2b(svargs[svix - 1], &p, 0); /* sticks at end */ | |
4843 | precis = p; | |
4844 | } | |
4845 | if (width) { /* fudge width (can't fudge elen) */ | |
4846 | width += elen - sv_len_utf8(svargs[svix - 1]); | |
4847 | } | |
4848 | } | |
4849 | } | |
46fc3d4c | 4850 | goto string; |
4851 | ||
fc36a67e | 4852 | case '_': |
4853 | /* | |
4854 | * The "%_" hack might have to be changed someday, | |
4855 | * if ISO or ANSI decide to use '_' for something. | |
4856 | * So we keep it hidden from users' code. | |
4857 | */ | |
4858 | if (!args) | |
4859 | goto unknown; | |
4860 | eptr = SvPVx(va_arg(*args, SV*), elen); | |
4861 | ||
46fc3d4c | 4862 | string: |
4863 | if (has_precis && elen > precis) | |
4864 | elen = precis; | |
4865 | break; | |
4866 | ||
4867 | /* INTEGERS */ | |
4868 | ||
fc36a67e | 4869 | case 'p': |
4870 | if (args) | |
4871 | uv = (UV)va_arg(*args, void*); | |
4872 | else | |
4873 | uv = (svix < svmax) ? (UV)svargs[svix++] : 0; | |
4874 | base = 16; | |
4875 | goto integer; | |
4876 | ||
46fc3d4c | 4877 | case 'D': |
4878 | intsize = 'l'; | |
4879 | /* FALL THROUGH */ | |
4880 | case 'd': | |
4881 | case 'i': | |
4882 | if (args) { | |
4883 | switch (intsize) { | |
4884 | case 'h': iv = (short)va_arg(*args, int); break; | |
4885 | default: iv = va_arg(*args, int); break; | |
4886 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 4887 | case 'V': iv = va_arg(*args, IV); break; |
46fc3d4c | 4888 | } |
4889 | } | |
4890 | else { | |
4891 | iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4892 | switch (intsize) { | |
4893 | case 'h': iv = (short)iv; break; | |
4894 | default: iv = (int)iv; break; | |
4895 | case 'l': iv = (long)iv; break; | |
fc36a67e | 4896 | case 'V': break; |
46fc3d4c | 4897 | } |
4898 | } | |
4899 | if (iv >= 0) { | |
4900 | uv = iv; | |
4901 | if (plus) | |
4902 | esignbuf[esignlen++] = plus; | |
4903 | } | |
4904 | else { | |
4905 | uv = -iv; | |
4906 | esignbuf[esignlen++] = '-'; | |
4907 | } | |
4908 | base = 10; | |
4909 | goto integer; | |
4910 | ||
fc36a67e | 4911 | case 'U': |
4912 | intsize = 'l'; | |
4913 | /* FALL THROUGH */ | |
4914 | case 'u': | |
4915 | base = 10; | |
4916 | goto uns_integer; | |
4917 | ||
4f19785b WSI |
4918 | case 'b': |
4919 | base = 2; | |
4920 | goto uns_integer; | |
4921 | ||
46fc3d4c | 4922 | case 'O': |
4923 | intsize = 'l'; | |
4924 | /* FALL THROUGH */ | |
4925 | case 'o': | |
4926 | base = 8; | |
4927 | goto uns_integer; | |
4928 | ||
4929 | case 'X': | |
46fc3d4c | 4930 | case 'x': |
4931 | base = 16; | |
46fc3d4c | 4932 | |
4933 | uns_integer: | |
4934 | if (args) { | |
4935 | switch (intsize) { | |
4936 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
4937 | default: uv = va_arg(*args, unsigned); break; | |
4938 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 4939 | case 'V': uv = va_arg(*args, UV); break; |
46fc3d4c | 4940 | } |
4941 | } | |
4942 | else { | |
4943 | uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0; | |
4944 | switch (intsize) { | |
4945 | case 'h': uv = (unsigned short)uv; break; | |
4946 | default: uv = (unsigned)uv; break; | |
4947 | case 'l': uv = (unsigned long)uv; break; | |
fc36a67e | 4948 | case 'V': break; |
46fc3d4c | 4949 | } |
4950 | } | |
4951 | ||
4952 | integer: | |
46fc3d4c | 4953 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 4954 | switch (base) { |
4955 | unsigned dig; | |
4956 | case 16: | |
c10ed8b9 HS |
4957 | if (!uv) |
4958 | alt = FALSE; | |
fc36a67e | 4959 | p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef"; |
4960 | do { | |
4961 | dig = uv & 15; | |
4962 | *--eptr = p[dig]; | |
4963 | } while (uv >>= 4); | |
4964 | if (alt) { | |
46fc3d4c | 4965 | esignbuf[esignlen++] = '0'; |
fc36a67e | 4966 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 4967 | } |
fc36a67e | 4968 | break; |
4969 | case 8: | |
4970 | do { | |
4971 | dig = uv & 7; | |
4972 | *--eptr = '0' + dig; | |
4973 | } while (uv >>= 3); | |
4974 | if (alt && *eptr != '0') | |
4975 | *--eptr = '0'; | |
4976 | break; | |
4f19785b WSI |
4977 | case 2: |
4978 | do { | |
4979 | dig = uv & 1; | |
4980 | *--eptr = '0' + dig; | |
4981 | } while (uv >>= 1); | |
4982 | if (alt && *eptr != '0') | |
4983 | *--eptr = '0'; | |
4984 | break; | |
fc36a67e | 4985 | default: /* it had better be ten or less */ |
4986 | do { | |
4987 | dig = uv % base; | |
4988 | *--eptr = '0' + dig; | |
4989 | } while (uv /= base); | |
4990 | break; | |
46fc3d4c | 4991 | } |
4992 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
4993 | if (has_precis) { |
4994 | if (precis > elen) | |
4995 | zeros = precis - elen; | |
4996 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
4997 | elen = 0; | |
4998 | } | |
46fc3d4c | 4999 | break; |
5000 | ||
5001 | /* FLOATING POINT */ | |
5002 | ||
fc36a67e | 5003 | case 'F': |
5004 | c = 'f'; /* maybe %F isn't supported here */ | |
5005 | /* FALL THROUGH */ | |
46fc3d4c | 5006 | case 'e': case 'E': |
fc36a67e | 5007 | case 'f': |
46fc3d4c | 5008 | case 'g': case 'G': |
5009 | ||
5010 | /* This is evil, but floating point is even more evil */ | |
5011 | ||
fc36a67e | 5012 | if (args) |
5013 | nv = va_arg(*args, double); | |
5014 | else | |
5015 | nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0; | |
5016 | ||
5017 | need = 0; | |
5018 | if (c != 'e' && c != 'E') { | |
5019 | i = PERL_INT_MIN; | |
5020 | (void)frexp(nv, &i); | |
5021 | if (i == PERL_INT_MIN) | |
c635e13b | 5022 | die("panic: frexp"); |
5023 | if (i > 0) | |
fc36a67e | 5024 | need = BIT_DIGITS(i); |
5025 | } | |
5026 | need += has_precis ? precis : 6; /* known default */ | |
5027 | if (need < width) | |
5028 | need = width; | |
5029 | ||
46fc3d4c | 5030 | need += 20; /* fudge factor */ |
80252599 GS |
5031 | if (PL_efloatsize < need) { |
5032 | Safefree(PL_efloatbuf); | |
5033 | PL_efloatsize = need + 20; /* more fudge */ | |
5034 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
46fc3d4c | 5035 | } |
5036 | ||
5037 | eptr = ebuf + sizeof ebuf; | |
5038 | *--eptr = '\0'; | |
5039 | *--eptr = c; | |
5040 | if (has_precis) { | |
5041 | base = precis; | |
5042 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
5043 | *--eptr = '.'; | |
5044 | } | |
5045 | if (width) { | |
5046 | base = width; | |
5047 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
5048 | } | |
5049 | if (fill == '0') | |
5050 | *--eptr = fill; | |
84902520 TB |
5051 | if (left) |
5052 | *--eptr = '-'; | |
46fc3d4c | 5053 | if (plus) |
5054 | *--eptr = plus; | |
5055 | if (alt) | |
5056 | *--eptr = '#'; | |
5057 | *--eptr = '%'; | |
5058 | ||
80252599 | 5059 | (void)sprintf(PL_efloatbuf, eptr, nv); |
46fc3d4c | 5060 | |
80252599 GS |
5061 | eptr = PL_efloatbuf; |
5062 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 5063 | |
5064 | #ifdef LC_NUMERIC | |
5065 | /* | |
5066 | * User-defined locales may include arbitrary characters. | |
5067 | * And, unfortunately, some system may alloc the "C" locale | |
5068 | * to be overridden by a malicious user. | |
5069 | */ | |
5070 | if (used_locale) | |
5071 | *used_locale = TRUE; | |
5072 | #endif /* LC_NUMERIC */ | |
5073 | ||
5074 | break; | |
5075 | ||
fc36a67e | 5076 | /* SPECIAL */ |
5077 | ||
5078 | case 'n': | |
5079 | i = SvCUR(sv) - origlen; | |
5080 | if (args) { | |
c635e13b | 5081 | switch (intsize) { |
5082 | case 'h': *(va_arg(*args, short*)) = i; break; | |
5083 | default: *(va_arg(*args, int*)) = i; break; | |
5084 | case 'l': *(va_arg(*args, long*)) = i; break; | |
5085 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
5086 | } | |
fc36a67e | 5087 | } |
5088 | else if (svix < svmax) | |
5089 | sv_setuv(svargs[svix++], (UV)i); | |
5090 | continue; /* not "break" */ | |
5091 | ||
5092 | /* UNKNOWN */ | |
5093 | ||
46fc3d4c | 5094 | default: |
fc36a67e | 5095 | unknown: |
599cee73 | 5096 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 5097 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 5098 | SV *msg = sv_newmortal(); |
5099 | sv_setpvf(msg, "Invalid conversion in %s: ", | |
533c011a | 5100 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
c635e13b | 5101 | if (c) |
5102 | sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"", | |
5103 | c & 0xFF); | |
5104 | else | |
5105 | sv_catpv(msg, "end of string"); | |
599cee73 | 5106 | warner(WARN_PRINTF, "%_", msg); /* yes, this is reentrant */ |
c635e13b | 5107 | } |
fb73857a | 5108 | |
5109 | /* output mangled stuff ... */ | |
5110 | if (c == '\0') | |
5111 | --q; | |
46fc3d4c | 5112 | eptr = p; |
5113 | elen = q - p; | |
fb73857a | 5114 | |
5115 | /* ... right here, because formatting flags should not apply */ | |
5116 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
5117 | p = SvEND(sv); | |
5118 | memcpy(p, eptr, elen); | |
5119 | p += elen; | |
5120 | *p = '\0'; | |
5121 | SvCUR(sv) = p - SvPVX(sv); | |
5122 | continue; /* not "break" */ | |
46fc3d4c | 5123 | } |
5124 | ||
fc36a67e | 5125 | have = esignlen + zeros + elen; |
46fc3d4c | 5126 | need = (have > width ? have : width); |
5127 | gap = need - have; | |
5128 | ||
7bc39d62 | 5129 | SvGROW(sv, SvCUR(sv) + need + 1); |
46fc3d4c | 5130 | p = SvEND(sv); |
5131 | if (esignlen && fill == '0') { | |
5132 | for (i = 0; i < esignlen; i++) | |
5133 | *p++ = esignbuf[i]; | |
5134 | } | |
5135 | if (gap && !left) { | |
5136 | memset(p, fill, gap); | |
5137 | p += gap; | |
5138 | } | |
5139 | if (esignlen && fill != '0') { | |
5140 | for (i = 0; i < esignlen; i++) | |
5141 | *p++ = esignbuf[i]; | |
5142 | } | |
fc36a67e | 5143 | if (zeros) { |
5144 | for (i = zeros; i; i--) | |
5145 | *p++ = '0'; | |
5146 | } | |
46fc3d4c | 5147 | if (elen) { |
5148 | memcpy(p, eptr, elen); | |
5149 | p += elen; | |
5150 | } | |
5151 | if (gap && left) { | |
5152 | memset(p, ' ', gap); | |
5153 | p += gap; | |
5154 | } | |
5155 | *p = '\0'; | |
5156 | SvCUR(sv) = p - SvPVX(sv); | |
5157 | } | |
5158 | } |