Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
9607fc9c | 3 | * Copyright (c) 1991-1997, 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)); | |
60 | static void sv_mortalgrow _((void)); | |
a0d0e21e | 61 | static void sv_unglob _((SV* sv)); |
0f15f207 | 62 | static void sv_check_thinkfirst _((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 | |
2c5424a7 GS |
74 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_check_thinkfirst(sv) |
75 | ||
a0d0e21e | 76 | #ifdef PURIFY |
79072805 | 77 | |
4561caa4 CS |
78 | #define new_SV(p) \ |
79 | do { \ | |
940cb80d | 80 | LOCK_SV_MUTEX; \ |
4561caa4 CS |
81 | (p) = (SV*)safemalloc(sizeof(SV)); \ |
82 | reg_add(p); \ | |
940cb80d | 83 | UNLOCK_SV_MUTEX; \ |
4561caa4 CS |
84 | } while (0) |
85 | ||
86 | #define del_SV(p) \ | |
87 | do { \ | |
940cb80d | 88 | LOCK_SV_MUTEX; \ |
4561caa4 | 89 | reg_remove(p); \ |
6ad3d225 | 90 | Safefree((char*)(p)); \ |
940cb80d | 91 | UNLOCK_SV_MUTEX; \ |
4561caa4 CS |
92 | } while (0) |
93 | ||
94 | static SV **registry; | |
00db4c45 | 95 | static I32 registry_size; |
4561caa4 CS |
96 | |
97 | #define REGHASH(sv,size) ((((U32)(sv)) >> 2) % (size)) | |
98 | ||
99 | #define REG_REPLACE(sv,a,b) \ | |
100 | do { \ | |
101 | void* p = sv->sv_any; \ | |
00db4c45 | 102 | I32 h = REGHASH(sv, registry_size); \ |
4561caa4 CS |
103 | I32 i = h; \ |
104 | while (registry[i] != (a)) { \ | |
00db4c45 | 105 | if (++i >= registry_size) \ |
4561caa4 CS |
106 | i = 0; \ |
107 | if (i == h) \ | |
108 | die("SV registry bug"); \ | |
109 | } \ | |
110 | registry[i] = (b); \ | |
111 | } while (0) | |
112 | ||
113 | #define REG_ADD(sv) REG_REPLACE(sv,Nullsv,sv) | |
114 | #define REG_REMOVE(sv) REG_REPLACE(sv,sv,Nullsv) | |
115 | ||
116 | static void | |
117 | reg_add(sv) | |
118 | SV* sv; | |
119 | { | |
3280af22 | 120 | if (PL_sv_count >= (registry_size >> 1)) |
4561caa4 CS |
121 | { |
122 | SV **oldreg = registry; | |
00db4c45 | 123 | I32 oldsize = registry_size; |
4561caa4 | 124 | |
00db4c45 GS |
125 | registry_size = registry_size ? ((registry_size << 2) + 1) : 2037; |
126 | Newz(707, registry, registry_size, SV*); | |
4561caa4 CS |
127 | |
128 | if (oldreg) { | |
129 | I32 i; | |
130 | ||
131 | for (i = 0; i < oldsize; ++i) { | |
132 | SV* oldsv = oldreg[i]; | |
133 | if (oldsv) | |
134 | REG_ADD(oldsv); | |
135 | } | |
136 | Safefree(oldreg); | |
137 | } | |
138 | } | |
139 | ||
140 | REG_ADD(sv); | |
3280af22 | 141 | ++PL_sv_count; |
4561caa4 CS |
142 | } |
143 | ||
144 | static void | |
145 | reg_remove(sv) | |
146 | SV* sv; | |
147 | { | |
148 | REG_REMOVE(sv); | |
3280af22 | 149 | --PL_sv_count; |
4561caa4 CS |
150 | } |
151 | ||
152 | static void | |
153 | visit(f) | |
154 | SVFUNC f; | |
155 | { | |
156 | I32 i; | |
157 | ||
00db4c45 | 158 | for (i = 0; i < registry_size; ++i) { |
4561caa4 | 159 | SV* sv = registry[i]; |
00db4c45 | 160 | if (sv && SvTYPE(sv) != SVTYPEMASK) |
4561caa4 CS |
161 | (*f)(sv); |
162 | } | |
163 | } | |
a0d0e21e | 164 | |
4633a7c4 LW |
165 | void |
166 | sv_add_arena(ptr, size, flags) | |
167 | char* ptr; | |
168 | U32 size; | |
169 | U32 flags; | |
170 | { | |
171 | if (!(flags & SVf_FAKE)) | |
6ad3d225 | 172 | Safefree(ptr); |
4633a7c4 LW |
173 | } |
174 | ||
4561caa4 CS |
175 | #else /* ! PURIFY */ |
176 | ||
177 | /* | |
178 | * "A time to plant, and a time to uproot what was planted..." | |
179 | */ | |
180 | ||
181 | #define plant_SV(p) \ | |
182 | do { \ | |
3280af22 | 183 | SvANY(p) = (void *)PL_sv_root; \ |
4561caa4 | 184 | SvFLAGS(p) = SVTYPEMASK; \ |
3280af22 NIS |
185 | PL_sv_root = (p); \ |
186 | --PL_sv_count; \ | |
4561caa4 | 187 | } while (0) |
a0d0e21e | 188 | |
fba3b22e | 189 | /* sv_mutex must be held while calling uproot_SV() */ |
fc36a67e | 190 | #define uproot_SV(p) \ |
4561caa4 | 191 | do { \ |
3280af22 NIS |
192 | (p) = PL_sv_root; \ |
193 | PL_sv_root = (SV*)SvANY(p); \ | |
194 | ++PL_sv_count; \ | |
4561caa4 | 195 | } while (0) |
463ee0b2 | 196 | |
940cb80d MB |
197 | #define new_SV(p) do { \ |
198 | LOCK_SV_MUTEX; \ | |
3280af22 | 199 | if (PL_sv_root) \ |
940cb80d MB |
200 | uproot_SV(p); \ |
201 | else \ | |
202 | (p) = more_sv(); \ | |
203 | UNLOCK_SV_MUTEX; \ | |
fba3b22e | 204 | } while (0) |
463ee0b2 | 205 | |
a0d0e21e | 206 | #ifdef DEBUGGING |
4561caa4 | 207 | |
940cb80d MB |
208 | #define del_SV(p) do { \ |
209 | LOCK_SV_MUTEX; \ | |
3280af22 | 210 | if (PL_debug & 32768) \ |
940cb80d MB |
211 | del_sv(p); \ |
212 | else \ | |
213 | plant_SV(p); \ | |
214 | UNLOCK_SV_MUTEX; \ | |
fba3b22e | 215 | } while (0) |
a0d0e21e | 216 | |
76e3520e | 217 | STATIC void |
8ac85365 | 218 | del_sv(SV *p) |
463ee0b2 | 219 | { |
3280af22 | 220 | if (PL_debug & 32768) { |
4633a7c4 | 221 | SV* sva; |
a0d0e21e LW |
222 | SV* sv; |
223 | SV* svend; | |
224 | int ok = 0; | |
3280af22 | 225 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
226 | sv = sva + 1; |
227 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
228 | if (p >= sv && p < svend) |
229 | ok = 1; | |
230 | } | |
231 | if (!ok) { | |
232 | warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p); | |
233 | return; | |
234 | } | |
235 | } | |
4561caa4 | 236 | plant_SV(p); |
463ee0b2 | 237 | } |
a0d0e21e | 238 | |
4561caa4 CS |
239 | #else /* ! DEBUGGING */ |
240 | ||
241 | #define del_SV(p) plant_SV(p) | |
242 | ||
243 | #endif /* DEBUGGING */ | |
463ee0b2 | 244 | |
4633a7c4 | 245 | void |
8ac85365 | 246 | sv_add_arena(char *ptr, U32 size, U32 flags) |
463ee0b2 | 247 | { |
4633a7c4 | 248 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
249 | register SV* sv; |
250 | register SV* svend; | |
4633a7c4 LW |
251 | Zero(sva, size, char); |
252 | ||
253 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 254 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
255 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
256 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
257 | ||
3280af22 NIS |
258 | PL_sv_arenaroot = sva; |
259 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
260 | |
261 | svend = &sva[SvREFCNT(sva) - 1]; | |
262 | sv = sva + 1; | |
463ee0b2 | 263 | while (sv < svend) { |
a0d0e21e | 264 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 265 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
266 | sv++; |
267 | } | |
268 | SvANY(sv) = 0; | |
4633a7c4 LW |
269 | SvFLAGS(sv) = SVTYPEMASK; |
270 | } | |
271 | ||
fba3b22e | 272 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 273 | STATIC SV* |
8ac85365 | 274 | more_sv(void) |
4633a7c4 | 275 | { |
4561caa4 CS |
276 | register SV* sv; |
277 | ||
3280af22 NIS |
278 | if (PL_nice_chunk) { |
279 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
280 | PL_nice_chunk = Nullch; | |
c07a80fd | 281 | } |
1edc1566 | 282 | else { |
283 | char *chunk; /* must use New here to match call to */ | |
284 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
285 | sv_add_arena(chunk, 1008, 0); | |
286 | } | |
4561caa4 CS |
287 | uproot_SV(sv); |
288 | return sv; | |
463ee0b2 LW |
289 | } |
290 | ||
76e3520e | 291 | STATIC void |
8ac85365 | 292 | visit(SVFUNC f) |
8990e307 | 293 | { |
4633a7c4 | 294 | SV* sva; |
8990e307 LW |
295 | SV* sv; |
296 | register SV* svend; | |
297 | ||
3280af22 | 298 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 299 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 CS |
300 | for (sv = sva + 1; sv < svend; ++sv) { |
301 | if (SvTYPE(sv) != SVTYPEMASK) | |
76e3520e | 302 | (FCALL)(sv); |
8990e307 LW |
303 | } |
304 | } | |
305 | } | |
306 | ||
4561caa4 CS |
307 | #endif /* PURIFY */ |
308 | ||
76e3520e | 309 | STATIC void |
8ac85365 | 310 | do_report_used(SV *sv) |
4561caa4 CS |
311 | { |
312 | if (SvTYPE(sv) != SVTYPEMASK) { | |
d1bf51dd | 313 | /* XXX Perhaps this ought to go to Perl_debug_log, if DEBUGGING. */ |
4561caa4 CS |
314 | PerlIO_printf(PerlIO_stderr(), "****\n"); |
315 | sv_dump(sv); | |
316 | } | |
317 | } | |
318 | ||
8990e307 | 319 | void |
8ac85365 | 320 | sv_report_used(void) |
4561caa4 | 321 | { |
ac4c12e7 | 322 | visit(FUNC_NAME_TO_PTR(do_report_used)); |
4561caa4 CS |
323 | } |
324 | ||
76e3520e | 325 | STATIC void |
8ac85365 | 326 | do_clean_objs(SV *sv) |
8990e307 | 327 | { |
a0d0e21e | 328 | SV* rv; |
8990e307 | 329 | |
4561caa4 | 330 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { |
d1bf51dd | 331 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));) |
4561caa4 CS |
332 | SvROK_off(sv); |
333 | SvRV(sv) = 0; | |
334 | SvREFCNT_dec(rv); | |
a5f75d66 | 335 | } |
4561caa4 CS |
336 | |
337 | /* XXX Might want to check arrays, etc. */ | |
338 | } | |
339 | ||
340 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
76e3520e | 341 | STATIC void |
8ac85365 | 342 | do_clean_named_objs(SV *sv) |
4561caa4 | 343 | { |
51ae5c03 JPC |
344 | if (SvTYPE(sv) == SVt_PVGV) { |
345 | if ( SvOBJECT(GvSV(sv)) || | |
346 | GvAV(sv) && SvOBJECT(GvAV(sv)) || | |
347 | GvHV(sv) && SvOBJECT(GvHV(sv)) || | |
348 | GvIO(sv) && SvOBJECT(GvIO(sv)) || | |
349 | GvCV(sv) && SvOBJECT(GvCV(sv)) ) | |
350 | { | |
351 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));) | |
352 | SvREFCNT_dec(sv); | |
353 | } | |
51ae5c03 | 354 | } |
4561caa4 | 355 | } |
a5f75d66 | 356 | #endif |
4561caa4 CS |
357 | |
358 | void | |
8ac85365 | 359 | sv_clean_objs(void) |
4561caa4 | 360 | { |
3280af22 | 361 | PL_in_clean_objs = TRUE; |
2d0f3c12 | 362 | visit(FUNC_NAME_TO_PTR(do_clean_objs)); |
4561caa4 | 363 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 364 | /* some barnacles may yet remain, clinging to typeglobs */ |
ac4c12e7 | 365 | visit(FUNC_NAME_TO_PTR(do_clean_named_objs)); |
4561caa4 | 366 | #endif |
3280af22 | 367 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
368 | } |
369 | ||
76e3520e | 370 | STATIC void |
8ac85365 | 371 | do_clean_all(SV *sv) |
4561caa4 | 372 | { |
01bc8b8d | 373 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%lx\n", sv) );) |
4561caa4 CS |
374 | SvFLAGS(sv) |= SVf_BREAK; |
375 | SvREFCNT_dec(sv); | |
8990e307 LW |
376 | } |
377 | ||
378 | void | |
8ac85365 | 379 | sv_clean_all(void) |
8990e307 | 380 | { |
3280af22 | 381 | PL_in_clean_all = TRUE; |
ac4c12e7 | 382 | visit(FUNC_NAME_TO_PTR(do_clean_all)); |
3280af22 | 383 | PL_in_clean_all = FALSE; |
8990e307 | 384 | } |
463ee0b2 | 385 | |
4633a7c4 | 386 | void |
8ac85365 | 387 | sv_free_arenas(void) |
4633a7c4 LW |
388 | { |
389 | SV* sva; | |
390 | SV* svanext; | |
391 | ||
392 | /* Free arenas here, but be careful about fake ones. (We assume | |
393 | contiguity of the fake ones with the corresponding real ones.) */ | |
394 | ||
3280af22 | 395 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
396 | svanext = (SV*) SvANY(sva); |
397 | while (svanext && SvFAKE(svanext)) | |
398 | svanext = (SV*) SvANY(svanext); | |
399 | ||
400 | if (!SvFAKE(sva)) | |
1edc1566 | 401 | Safefree((void *)sva); |
4633a7c4 | 402 | } |
5f05dabc | 403 | |
3280af22 NIS |
404 | if (PL_nice_chunk) |
405 | Safefree(PL_nice_chunk); | |
406 | PL_nice_chunk = Nullch; | |
407 | PL_nice_chunk_size = 0; | |
408 | PL_sv_arenaroot = 0; | |
409 | PL_sv_root = 0; | |
4633a7c4 LW |
410 | } |
411 | ||
76e3520e | 412 | STATIC XPVIV* |
8ac85365 | 413 | new_xiv(void) |
463ee0b2 | 414 | { |
ea7c11a3 | 415 | IV* xiv; |
cbe51380 GS |
416 | LOCK_SV_MUTEX; |
417 | if (!PL_xiv_root) | |
418 | more_xiv(); | |
419 | xiv = PL_xiv_root; | |
420 | /* | |
421 | * See comment in more_xiv() -- RAM. | |
422 | */ | |
423 | PL_xiv_root = *(IV**)xiv; | |
424 | UNLOCK_SV_MUTEX; | |
425 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
426 | } |
427 | ||
76e3520e | 428 | STATIC void |
8ac85365 | 429 | del_xiv(XPVIV *p) |
463ee0b2 | 430 | { |
23e6a22f | 431 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 432 | LOCK_SV_MUTEX; |
3280af22 NIS |
433 | *(IV**)xiv = PL_xiv_root; |
434 | PL_xiv_root = xiv; | |
cbe51380 | 435 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
436 | } |
437 | ||
cbe51380 | 438 | STATIC void |
8ac85365 | 439 | more_xiv(void) |
463ee0b2 | 440 | { |
ea7c11a3 SM |
441 | register IV* xiv; |
442 | register IV* xivend; | |
8c52afec IZ |
443 | XPV* ptr; |
444 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
3280af22 NIS |
445 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
446 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ | |
a0d0e21e | 447 | |
ea7c11a3 SM |
448 | xiv = (IV*) ptr; |
449 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
450 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ | |
3280af22 | 451 | PL_xiv_root = xiv; |
463ee0b2 | 452 | while (xiv < xivend) { |
ea7c11a3 | 453 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
454 | xiv++; |
455 | } | |
ea7c11a3 | 456 | *(IV**)xiv = 0; |
463ee0b2 LW |
457 | } |
458 | ||
76e3520e | 459 | STATIC XPVNV* |
8ac85365 | 460 | new_xnv(void) |
463ee0b2 LW |
461 | { |
462 | double* xnv; | |
cbe51380 GS |
463 | LOCK_SV_MUTEX; |
464 | if (!PL_xnv_root) | |
465 | more_xnv(); | |
466 | xnv = PL_xnv_root; | |
467 | PL_xnv_root = *(double**)xnv; | |
468 | UNLOCK_SV_MUTEX; | |
469 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
470 | } |
471 | ||
76e3520e | 472 | STATIC void |
8ac85365 | 473 | del_xnv(XPVNV *p) |
463ee0b2 | 474 | { |
23e6a22f | 475 | double* xnv = (double*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 476 | LOCK_SV_MUTEX; |
3280af22 NIS |
477 | *(double**)xnv = PL_xnv_root; |
478 | PL_xnv_root = xnv; | |
cbe51380 | 479 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
480 | } |
481 | ||
cbe51380 | 482 | STATIC void |
8ac85365 | 483 | more_xnv(void) |
463ee0b2 | 484 | { |
463ee0b2 LW |
485 | register double* xnv; |
486 | register double* xnvend; | |
8c52afec | 487 | New(711, xnv, 1008/sizeof(double), double); |
463ee0b2 LW |
488 | xnvend = &xnv[1008 / sizeof(double) - 1]; |
489 | xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 490 | PL_xnv_root = xnv; |
463ee0b2 LW |
491 | while (xnv < xnvend) { |
492 | *(double**)xnv = (double*)(xnv + 1); | |
493 | xnv++; | |
494 | } | |
495 | *(double**)xnv = 0; | |
463ee0b2 LW |
496 | } |
497 | ||
76e3520e | 498 | STATIC XRV* |
8ac85365 | 499 | new_xrv(void) |
ed6116ce LW |
500 | { |
501 | XRV* xrv; | |
cbe51380 GS |
502 | LOCK_SV_MUTEX; |
503 | if (!PL_xrv_root) | |
504 | more_xrv(); | |
505 | xrv = PL_xrv_root; | |
506 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
507 | UNLOCK_SV_MUTEX; | |
508 | return xrv; | |
ed6116ce LW |
509 | } |
510 | ||
76e3520e | 511 | STATIC void |
8ac85365 | 512 | del_xrv(XRV *p) |
ed6116ce | 513 | { |
cbe51380 | 514 | LOCK_SV_MUTEX; |
3280af22 NIS |
515 | p->xrv_rv = (SV*)PL_xrv_root; |
516 | PL_xrv_root = p; | |
cbe51380 | 517 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
518 | } |
519 | ||
cbe51380 | 520 | STATIC void |
8ac85365 | 521 | more_xrv(void) |
ed6116ce | 522 | { |
ed6116ce LW |
523 | register XRV* xrv; |
524 | register XRV* xrvend; | |
3280af22 NIS |
525 | New(712, PL_xrv_root, 1008/sizeof(XRV), XRV); |
526 | xrv = PL_xrv_root; | |
ed6116ce LW |
527 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
528 | while (xrv < xrvend) { | |
529 | xrv->xrv_rv = (SV*)(xrv + 1); | |
530 | xrv++; | |
531 | } | |
532 | xrv->xrv_rv = 0; | |
ed6116ce LW |
533 | } |
534 | ||
76e3520e | 535 | STATIC XPV* |
8ac85365 | 536 | new_xpv(void) |
463ee0b2 LW |
537 | { |
538 | XPV* xpv; | |
cbe51380 GS |
539 | LOCK_SV_MUTEX; |
540 | if (!PL_xpv_root) | |
541 | more_xpv(); | |
542 | xpv = PL_xpv_root; | |
543 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
544 | UNLOCK_SV_MUTEX; | |
545 | return xpv; | |
463ee0b2 LW |
546 | } |
547 | ||
76e3520e | 548 | STATIC void |
8ac85365 | 549 | del_xpv(XPV *p) |
463ee0b2 | 550 | { |
cbe51380 | 551 | LOCK_SV_MUTEX; |
3280af22 NIS |
552 | p->xpv_pv = (char*)PL_xpv_root; |
553 | PL_xpv_root = p; | |
cbe51380 | 554 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
555 | } |
556 | ||
cbe51380 | 557 | STATIC void |
8ac85365 | 558 | more_xpv(void) |
463ee0b2 | 559 | { |
463ee0b2 LW |
560 | register XPV* xpv; |
561 | register XPV* xpvend; | |
3280af22 NIS |
562 | New(713, PL_xpv_root, 1008/sizeof(XPV), XPV); |
563 | xpv = PL_xpv_root; | |
463ee0b2 LW |
564 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
565 | while (xpv < xpvend) { | |
566 | xpv->xpv_pv = (char*)(xpv + 1); | |
567 | xpv++; | |
568 | } | |
569 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
570 | } |
571 | ||
572 | #ifdef PURIFY | |
8990e307 | 573 | #define new_XIV() (void*)safemalloc(sizeof(XPVIV)) |
6ad3d225 | 574 | #define del_XIV(p) Safefree((char*)p) |
463ee0b2 | 575 | #else |
85e6fe83 | 576 | #define new_XIV() (void*)new_xiv() |
8ac85365 | 577 | #define del_XIV(p) del_xiv((XPVIV*) p) |
463ee0b2 LW |
578 | #endif |
579 | ||
580 | #ifdef PURIFY | |
8990e307 | 581 | #define new_XNV() (void*)safemalloc(sizeof(XPVNV)) |
6ad3d225 | 582 | #define del_XNV(p) Safefree((char*)p) |
463ee0b2 | 583 | #else |
85e6fe83 | 584 | #define new_XNV() (void*)new_xnv() |
8ac85365 | 585 | #define del_XNV(p) del_xnv((XPVNV*) p) |
463ee0b2 LW |
586 | #endif |
587 | ||
588 | #ifdef PURIFY | |
8990e307 | 589 | #define new_XRV() (void*)safemalloc(sizeof(XRV)) |
6ad3d225 | 590 | #define del_XRV(p) Safefree((char*)p) |
ed6116ce | 591 | #else |
85e6fe83 | 592 | #define new_XRV() (void*)new_xrv() |
8ac85365 | 593 | #define del_XRV(p) del_xrv((XRV*) p) |
ed6116ce LW |
594 | #endif |
595 | ||
596 | #ifdef PURIFY | |
8990e307 | 597 | #define new_XPV() (void*)safemalloc(sizeof(XPV)) |
6ad3d225 | 598 | #define del_XPV(p) Safefree((char*)p) |
463ee0b2 | 599 | #else |
85e6fe83 | 600 | #define new_XPV() (void*)new_xpv() |
8ac85365 | 601 | #define del_XPV(p) del_xpv((XPV *)p) |
463ee0b2 LW |
602 | #endif |
603 | ||
8c52afec IZ |
604 | #ifdef PURIFY |
605 | # define my_safemalloc(s) safemalloc(s) | |
606 | # define my_safefree(s) free(s) | |
607 | #else | |
9d8a25dc | 608 | STATIC void* |
d665c133 | 609 | my_safemalloc(MEM_SIZE size) |
8c52afec IZ |
610 | { |
611 | char *p; | |
612 | New(717, p, size, char); | |
613 | return (void*)p; | |
614 | } | |
615 | # define my_safefree(s) Safefree(s) | |
616 | #endif | |
617 | ||
618 | #define new_XPVIV() (void*)my_safemalloc(sizeof(XPVIV)) | |
619 | #define del_XPVIV(p) my_safefree((char*)p) | |
620 | ||
621 | #define new_XPVNV() (void*)my_safemalloc(sizeof(XPVNV)) | |
622 | #define del_XPVNV(p) my_safefree((char*)p) | |
623 | ||
624 | #define new_XPVMG() (void*)my_safemalloc(sizeof(XPVMG)) | |
625 | #define del_XPVMG(p) my_safefree((char*)p) | |
626 | ||
627 | #define new_XPVLV() (void*)my_safemalloc(sizeof(XPVLV)) | |
628 | #define del_XPVLV(p) my_safefree((char*)p) | |
629 | ||
630 | #define new_XPVAV() (void*)my_safemalloc(sizeof(XPVAV)) | |
631 | #define del_XPVAV(p) my_safefree((char*)p) | |
632 | ||
633 | #define new_XPVHV() (void*)my_safemalloc(sizeof(XPVHV)) | |
634 | #define del_XPVHV(p) my_safefree((char*)p) | |
635 | ||
636 | #define new_XPVCV() (void*)my_safemalloc(sizeof(XPVCV)) | |
637 | #define del_XPVCV(p) my_safefree((char*)p) | |
638 | ||
639 | #define new_XPVGV() (void*)my_safemalloc(sizeof(XPVGV)) | |
640 | #define del_XPVGV(p) my_safefree((char*)p) | |
641 | ||
642 | #define new_XPVBM() (void*)my_safemalloc(sizeof(XPVBM)) | |
643 | #define del_XPVBM(p) my_safefree((char*)p) | |
644 | ||
645 | #define new_XPVFM() (void*)my_safemalloc(sizeof(XPVFM)) | |
646 | #define del_XPVFM(p) my_safefree((char*)p) | |
647 | ||
648 | #define new_XPVIO() (void*)my_safemalloc(sizeof(XPVIO)) | |
649 | #define del_XPVIO(p) my_safefree((char*)p) | |
8990e307 | 650 | |
79072805 | 651 | bool |
8ac85365 | 652 | sv_upgrade(register SV *sv, U32 mt) |
79072805 LW |
653 | { |
654 | char* pv; | |
655 | U32 cur; | |
656 | U32 len; | |
a0d0e21e | 657 | IV iv; |
79072805 LW |
658 | double nv; |
659 | MAGIC* magic; | |
660 | HV* stash; | |
661 | ||
662 | if (SvTYPE(sv) == mt) | |
663 | return TRUE; | |
664 | ||
a5f75d66 AD |
665 | if (mt < SVt_PVIV) |
666 | (void)SvOOK_off(sv); | |
667 | ||
79072805 LW |
668 | switch (SvTYPE(sv)) { |
669 | case SVt_NULL: | |
670 | pv = 0; | |
671 | cur = 0; | |
672 | len = 0; | |
673 | iv = 0; | |
674 | nv = 0.0; | |
675 | magic = 0; | |
676 | stash = 0; | |
677 | break; | |
79072805 LW |
678 | case SVt_IV: |
679 | pv = 0; | |
680 | cur = 0; | |
681 | len = 0; | |
463ee0b2 LW |
682 | iv = SvIVX(sv); |
683 | nv = (double)SvIVX(sv); | |
79072805 LW |
684 | del_XIV(SvANY(sv)); |
685 | magic = 0; | |
686 | stash = 0; | |
ed6116ce | 687 | if (mt == SVt_NV) |
463ee0b2 | 688 | mt = SVt_PVNV; |
ed6116ce LW |
689 | else if (mt < SVt_PVIV) |
690 | mt = SVt_PVIV; | |
79072805 LW |
691 | break; |
692 | case SVt_NV: | |
693 | pv = 0; | |
694 | cur = 0; | |
695 | len = 0; | |
463ee0b2 | 696 | nv = SvNVX(sv); |
1bd302c3 | 697 | iv = I_V(nv); |
79072805 LW |
698 | magic = 0; |
699 | stash = 0; | |
700 | del_XNV(SvANY(sv)); | |
701 | SvANY(sv) = 0; | |
ed6116ce | 702 | if (mt < SVt_PVNV) |
79072805 LW |
703 | mt = SVt_PVNV; |
704 | break; | |
ed6116ce LW |
705 | case SVt_RV: |
706 | pv = (char*)SvRV(sv); | |
707 | cur = 0; | |
708 | len = 0; | |
a0d0e21e | 709 | iv = (IV)pv; |
ed6116ce LW |
710 | nv = (double)(unsigned long)pv; |
711 | del_XRV(SvANY(sv)); | |
712 | magic = 0; | |
713 | stash = 0; | |
714 | break; | |
79072805 | 715 | case SVt_PV: |
463ee0b2 | 716 | pv = SvPVX(sv); |
79072805 LW |
717 | cur = SvCUR(sv); |
718 | len = SvLEN(sv); | |
719 | iv = 0; | |
720 | nv = 0.0; | |
721 | magic = 0; | |
722 | stash = 0; | |
723 | del_XPV(SvANY(sv)); | |
748a9306 LW |
724 | if (mt <= SVt_IV) |
725 | mt = SVt_PVIV; | |
726 | else if (mt == SVt_NV) | |
727 | mt = SVt_PVNV; | |
79072805 LW |
728 | break; |
729 | case SVt_PVIV: | |
463ee0b2 | 730 | pv = SvPVX(sv); |
79072805 LW |
731 | cur = SvCUR(sv); |
732 | len = SvLEN(sv); | |
463ee0b2 | 733 | iv = SvIVX(sv); |
79072805 LW |
734 | nv = 0.0; |
735 | magic = 0; | |
736 | stash = 0; | |
737 | del_XPVIV(SvANY(sv)); | |
738 | break; | |
739 | case SVt_PVNV: | |
463ee0b2 | 740 | pv = SvPVX(sv); |
79072805 LW |
741 | cur = SvCUR(sv); |
742 | len = SvLEN(sv); | |
463ee0b2 LW |
743 | iv = SvIVX(sv); |
744 | nv = SvNVX(sv); | |
79072805 LW |
745 | magic = 0; |
746 | stash = 0; | |
747 | del_XPVNV(SvANY(sv)); | |
748 | break; | |
749 | case SVt_PVMG: | |
463ee0b2 | 750 | pv = SvPVX(sv); |
79072805 LW |
751 | cur = SvCUR(sv); |
752 | len = SvLEN(sv); | |
463ee0b2 LW |
753 | iv = SvIVX(sv); |
754 | nv = SvNVX(sv); | |
79072805 LW |
755 | magic = SvMAGIC(sv); |
756 | stash = SvSTASH(sv); | |
757 | del_XPVMG(SvANY(sv)); | |
758 | break; | |
759 | default: | |
463ee0b2 | 760 | croak("Can't upgrade that kind of scalar"); |
79072805 LW |
761 | } |
762 | ||
763 | switch (mt) { | |
764 | case SVt_NULL: | |
463ee0b2 | 765 | croak("Can't upgrade to undef"); |
79072805 LW |
766 | case SVt_IV: |
767 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 768 | SvIVX(sv) = iv; |
79072805 LW |
769 | break; |
770 | case SVt_NV: | |
771 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 772 | SvNVX(sv) = nv; |
79072805 | 773 | break; |
ed6116ce LW |
774 | case SVt_RV: |
775 | SvANY(sv) = new_XRV(); | |
776 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 777 | break; |
79072805 LW |
778 | case SVt_PV: |
779 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 780 | SvPVX(sv) = pv; |
79072805 LW |
781 | SvCUR(sv) = cur; |
782 | SvLEN(sv) = len; | |
783 | break; | |
784 | case SVt_PVIV: | |
785 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 786 | SvPVX(sv) = pv; |
79072805 LW |
787 | SvCUR(sv) = cur; |
788 | SvLEN(sv) = len; | |
463ee0b2 | 789 | SvIVX(sv) = iv; |
79072805 | 790 | if (SvNIOK(sv)) |
a0d0e21e | 791 | (void)SvIOK_on(sv); |
79072805 LW |
792 | SvNOK_off(sv); |
793 | break; | |
794 | case SVt_PVNV: | |
795 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 796 | SvPVX(sv) = pv; |
79072805 LW |
797 | SvCUR(sv) = cur; |
798 | SvLEN(sv) = len; | |
463ee0b2 LW |
799 | SvIVX(sv) = iv; |
800 | SvNVX(sv) = nv; | |
79072805 LW |
801 | break; |
802 | case SVt_PVMG: | |
803 | SvANY(sv) = new_XPVMG(); | |
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 | SvMAGIC(sv) = magic; |
810 | SvSTASH(sv) = stash; | |
811 | break; | |
812 | case SVt_PVLV: | |
813 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 814 | SvPVX(sv) = pv; |
79072805 LW |
815 | SvCUR(sv) = cur; |
816 | SvLEN(sv) = len; | |
463ee0b2 LW |
817 | SvIVX(sv) = iv; |
818 | SvNVX(sv) = nv; | |
79072805 LW |
819 | SvMAGIC(sv) = magic; |
820 | SvSTASH(sv) = stash; | |
821 | LvTARGOFF(sv) = 0; | |
822 | LvTARGLEN(sv) = 0; | |
823 | LvTARG(sv) = 0; | |
824 | LvTYPE(sv) = 0; | |
825 | break; | |
826 | case SVt_PVAV: | |
827 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
828 | if (pv) |
829 | Safefree(pv); | |
2304df62 | 830 | SvPVX(sv) = 0; |
d1bf51dd | 831 | AvMAX(sv) = -1; |
93965878 | 832 | AvFILLp(sv) = -1; |
463ee0b2 LW |
833 | SvIVX(sv) = 0; |
834 | SvNVX(sv) = 0.0; | |
835 | SvMAGIC(sv) = magic; | |
836 | SvSTASH(sv) = stash; | |
837 | AvALLOC(sv) = 0; | |
79072805 LW |
838 | AvARYLEN(sv) = 0; |
839 | AvFLAGS(sv) = 0; | |
840 | break; | |
841 | case SVt_PVHV: | |
842 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
843 | if (pv) |
844 | Safefree(pv); | |
845 | SvPVX(sv) = 0; | |
846 | HvFILL(sv) = 0; | |
847 | HvMAX(sv) = 0; | |
848 | HvKEYS(sv) = 0; | |
849 | SvNVX(sv) = 0.0; | |
79072805 LW |
850 | SvMAGIC(sv) = magic; |
851 | SvSTASH(sv) = stash; | |
79072805 LW |
852 | HvRITER(sv) = 0; |
853 | HvEITER(sv) = 0; | |
854 | HvPMROOT(sv) = 0; | |
855 | HvNAME(sv) = 0; | |
79072805 LW |
856 | break; |
857 | case SVt_PVCV: | |
858 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 859 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 860 | SvPVX(sv) = pv; |
79072805 LW |
861 | SvCUR(sv) = cur; |
862 | SvLEN(sv) = len; | |
463ee0b2 LW |
863 | SvIVX(sv) = iv; |
864 | SvNVX(sv) = nv; | |
79072805 LW |
865 | SvMAGIC(sv) = magic; |
866 | SvSTASH(sv) = stash; | |
79072805 LW |
867 | break; |
868 | case SVt_PVGV: | |
869 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 870 | SvPVX(sv) = pv; |
79072805 LW |
871 | SvCUR(sv) = cur; |
872 | SvLEN(sv) = len; | |
463ee0b2 LW |
873 | SvIVX(sv) = iv; |
874 | SvNVX(sv) = nv; | |
79072805 LW |
875 | SvMAGIC(sv) = magic; |
876 | SvSTASH(sv) = stash; | |
93a17b20 | 877 | GvGP(sv) = 0; |
79072805 LW |
878 | GvNAME(sv) = 0; |
879 | GvNAMELEN(sv) = 0; | |
880 | GvSTASH(sv) = 0; | |
a5f75d66 | 881 | GvFLAGS(sv) = 0; |
79072805 LW |
882 | break; |
883 | case SVt_PVBM: | |
884 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 885 | SvPVX(sv) = pv; |
79072805 LW |
886 | SvCUR(sv) = cur; |
887 | SvLEN(sv) = len; | |
463ee0b2 LW |
888 | SvIVX(sv) = iv; |
889 | SvNVX(sv) = nv; | |
79072805 LW |
890 | SvMAGIC(sv) = magic; |
891 | SvSTASH(sv) = stash; | |
892 | BmRARE(sv) = 0; | |
893 | BmUSEFUL(sv) = 0; | |
894 | BmPREVIOUS(sv) = 0; | |
895 | break; | |
896 | case SVt_PVFM: | |
897 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 898 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 899 | SvPVX(sv) = pv; |
79072805 LW |
900 | SvCUR(sv) = cur; |
901 | SvLEN(sv) = len; | |
463ee0b2 LW |
902 | SvIVX(sv) = iv; |
903 | SvNVX(sv) = nv; | |
79072805 LW |
904 | SvMAGIC(sv) = magic; |
905 | SvSTASH(sv) = stash; | |
79072805 | 906 | break; |
8990e307 LW |
907 | case SVt_PVIO: |
908 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 909 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
910 | SvPVX(sv) = pv; |
911 | SvCUR(sv) = cur; | |
912 | SvLEN(sv) = len; | |
913 | SvIVX(sv) = iv; | |
914 | SvNVX(sv) = nv; | |
915 | SvMAGIC(sv) = magic; | |
916 | SvSTASH(sv) = stash; | |
85e6fe83 | 917 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
918 | break; |
919 | } | |
920 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
921 | SvFLAGS(sv) |= mt; | |
79072805 LW |
922 | return TRUE; |
923 | } | |
924 | ||
79072805 | 925 | int |
8ac85365 | 926 | sv_backoff(register SV *sv) |
79072805 LW |
927 | { |
928 | assert(SvOOK(sv)); | |
463ee0b2 LW |
929 | if (SvIVX(sv)) { |
930 | char *s = SvPVX(sv); | |
931 | SvLEN(sv) += SvIVX(sv); | |
932 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 933 | SvIV_set(sv, 0); |
463ee0b2 | 934 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
935 | } |
936 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 937 | return 0; |
79072805 LW |
938 | } |
939 | ||
940 | char * | |
22c35a8c | 941 | sv_grow(register SV *sv, register STRLEN newlen) |
79072805 LW |
942 | { |
943 | register char *s; | |
944 | ||
55497cff | 945 | #ifdef HAS_64K_LIMIT |
79072805 | 946 | if (newlen >= 0x10000) { |
d1bf51dd | 947 | PerlIO_printf(Perl_debug_log, "Allocation too large: %lx\n", newlen); |
79072805 LW |
948 | my_exit(1); |
949 | } | |
55497cff | 950 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
951 | if (SvROK(sv)) |
952 | sv_unref(sv); | |
79072805 LW |
953 | if (SvTYPE(sv) < SVt_PV) { |
954 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 955 | s = SvPVX(sv); |
79072805 LW |
956 | } |
957 | else if (SvOOK(sv)) { /* pv is offset? */ | |
958 | sv_backoff(sv); | |
463ee0b2 | 959 | s = SvPVX(sv); |
79072805 LW |
960 | if (newlen > SvLEN(sv)) |
961 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
962 | #ifdef HAS_64K_LIMIT |
963 | if (newlen >= 0x10000) | |
964 | newlen = 0xFFFF; | |
965 | #endif | |
79072805 LW |
966 | } |
967 | else | |
463ee0b2 | 968 | s = SvPVX(sv); |
79072805 | 969 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 970 | if (SvLEN(sv) && s) { |
1fe09876 | 971 | #if defined(MYMALLOC) && !defined(PURIFY) && !defined(LEAKTEST) |
8d6dde3e IZ |
972 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
973 | if (newlen <= l) { | |
974 | SvLEN_set(sv, l); | |
975 | return s; | |
976 | } else | |
c70c8a0a | 977 | #endif |
79072805 | 978 | Renew(s,newlen,char); |
8d6dde3e | 979 | } |
79072805 LW |
980 | else |
981 | New(703,s,newlen,char); | |
982 | SvPV_set(sv, s); | |
983 | SvLEN_set(sv, newlen); | |
984 | } | |
985 | return s; | |
986 | } | |
987 | ||
988 | void | |
8ac85365 | 989 | sv_setiv(register SV *sv, IV i) |
79072805 | 990 | { |
2213622d | 991 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
992 | switch (SvTYPE(sv)) { |
993 | case SVt_NULL: | |
79072805 | 994 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
995 | break; |
996 | case SVt_NV: | |
997 | sv_upgrade(sv, SVt_PVNV); | |
998 | break; | |
ed6116ce | 999 | case SVt_RV: |
463ee0b2 | 1000 | case SVt_PV: |
79072805 | 1001 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1002 | break; |
a0d0e21e LW |
1003 | |
1004 | case SVt_PVGV: | |
1005 | if (SvFAKE(sv)) { | |
1006 | sv_unglob(sv); | |
1007 | break; | |
1008 | } | |
1009 | /* FALL THROUGH */ | |
1010 | case SVt_PVAV: | |
1011 | case SVt_PVHV: | |
1012 | case SVt_PVCV: | |
1013 | case SVt_PVFM: | |
1014 | case SVt_PVIO: | |
11343788 MB |
1015 | { |
1016 | dTHR; | |
1017 | croak("Can't coerce %s to integer in %s", sv_reftype(sv,0), | |
22c35a8c | 1018 | PL_op_desc[PL_op->op_type]); |
11343788 | 1019 | } |
463ee0b2 | 1020 | } |
a0d0e21e | 1021 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1022 | SvIVX(sv) = i; |
463ee0b2 | 1023 | SvTAINT(sv); |
79072805 LW |
1024 | } |
1025 | ||
1026 | void | |
ef50df4b GS |
1027 | sv_setiv_mg(register SV *sv, IV i) |
1028 | { | |
1029 | sv_setiv(sv,i); | |
1030 | SvSETMAGIC(sv); | |
1031 | } | |
1032 | ||
1033 | void | |
8ac85365 | 1034 | sv_setuv(register SV *sv, UV u) |
55497cff | 1035 | { |
1036 | if (u <= IV_MAX) | |
1037 | sv_setiv(sv, u); | |
1038 | else | |
1039 | sv_setnv(sv, (double)u); | |
1040 | } | |
1041 | ||
1042 | void | |
ef50df4b GS |
1043 | sv_setuv_mg(register SV *sv, UV u) |
1044 | { | |
1045 | sv_setuv(sv,u); | |
1046 | SvSETMAGIC(sv); | |
1047 | } | |
1048 | ||
1049 | void | |
8ac85365 | 1050 | sv_setnv(register SV *sv, double num) |
79072805 | 1051 | { |
2213622d | 1052 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1053 | switch (SvTYPE(sv)) { |
1054 | case SVt_NULL: | |
1055 | case SVt_IV: | |
79072805 | 1056 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1057 | break; |
a0d0e21e LW |
1058 | case SVt_RV: |
1059 | case SVt_PV: | |
1060 | case SVt_PVIV: | |
79072805 | 1061 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1062 | break; |
827b7e14 | 1063 | |
a0d0e21e LW |
1064 | case SVt_PVGV: |
1065 | if (SvFAKE(sv)) { | |
1066 | sv_unglob(sv); | |
1067 | break; | |
1068 | } | |
1069 | /* FALL THROUGH */ | |
1070 | case SVt_PVAV: | |
1071 | case SVt_PVHV: | |
1072 | case SVt_PVCV: | |
1073 | case SVt_PVFM: | |
1074 | case SVt_PVIO: | |
11343788 MB |
1075 | { |
1076 | dTHR; | |
1077 | croak("Can't coerce %s to number in %s", sv_reftype(sv,0), | |
22c35a8c | 1078 | PL_op_name[PL_op->op_type]); |
11343788 | 1079 | } |
79072805 | 1080 | } |
463ee0b2 | 1081 | SvNVX(sv) = num; |
a0d0e21e | 1082 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1083 | SvTAINT(sv); |
79072805 LW |
1084 | } |
1085 | ||
ef50df4b GS |
1086 | void |
1087 | sv_setnv_mg(register SV *sv, double num) | |
1088 | { | |
1089 | sv_setnv(sv,num); | |
1090 | SvSETMAGIC(sv); | |
1091 | } | |
1092 | ||
76e3520e | 1093 | STATIC void |
8ac85365 | 1094 | not_a_number(SV *sv) |
a0d0e21e | 1095 | { |
11343788 | 1096 | dTHR; |
a0d0e21e LW |
1097 | char tmpbuf[64]; |
1098 | char *d = tmpbuf; | |
1099 | char *s; | |
dc28f22b GA |
1100 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; |
1101 | /* each *s can expand to 4 chars + "...\0", | |
1102 | i.e. need room for 8 chars */ | |
a0d0e21e | 1103 | |
dc28f22b | 1104 | for (s = SvPVX(sv); *s && d < limit; s++) { |
bbce6d69 | 1105 | int ch = *s & 0xFF; |
1106 | if (ch & 128 && !isPRINT_LC(ch)) { | |
a0d0e21e LW |
1107 | *d++ = 'M'; |
1108 | *d++ = '-'; | |
1109 | ch &= 127; | |
1110 | } | |
bbce6d69 | 1111 | if (ch == '\n') { |
1112 | *d++ = '\\'; | |
1113 | *d++ = 'n'; | |
1114 | } | |
1115 | else if (ch == '\r') { | |
1116 | *d++ = '\\'; | |
1117 | *d++ = 'r'; | |
1118 | } | |
1119 | else if (ch == '\f') { | |
1120 | *d++ = '\\'; | |
1121 | *d++ = 'f'; | |
1122 | } | |
1123 | else if (ch == '\\') { | |
1124 | *d++ = '\\'; | |
1125 | *d++ = '\\'; | |
1126 | } | |
1127 | else if (isPRINT_LC(ch)) | |
a0d0e21e LW |
1128 | *d++ = ch; |
1129 | else { | |
1130 | *d++ = '^'; | |
bbce6d69 | 1131 | *d++ = toCTRL(ch); |
a0d0e21e LW |
1132 | } |
1133 | } | |
1134 | if (*s) { | |
1135 | *d++ = '.'; | |
1136 | *d++ = '.'; | |
1137 | *d++ = '.'; | |
1138 | } | |
1139 | *d = '\0'; | |
1140 | ||
533c011a | 1141 | if (PL_op) |
599cee73 | 1142 | warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric in %s", tmpbuf, |
22c35a8c | 1143 | PL_op_name[PL_op->op_type]); |
a0d0e21e | 1144 | else |
599cee73 | 1145 | warner(WARN_NUMERIC, "Argument \"%s\" isn't numeric", tmpbuf); |
a0d0e21e LW |
1146 | } |
1147 | ||
1148 | IV | |
8ac85365 | 1149 | sv_2iv(register SV *sv) |
79072805 LW |
1150 | { |
1151 | if (!sv) | |
1152 | return 0; | |
8990e307 | 1153 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1154 | mg_get(sv); |
1155 | if (SvIOKp(sv)) | |
1156 | return SvIVX(sv); | |
748a9306 LW |
1157 | if (SvNOKp(sv)) { |
1158 | if (SvNVX(sv) < 0.0) | |
1159 | return I_V(SvNVX(sv)); | |
1160 | else | |
5d94fbed | 1161 | return (IV) U_V(SvNVX(sv)); |
748a9306 | 1162 | } |
36477c24 | 1163 | if (SvPOKp(sv) && SvLEN(sv)) |
1164 | return asIV(sv); | |
3fe9a6f1 | 1165 | if (!SvROK(sv)) { |
d008e5eb | 1166 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1167 | dTHR; |
d008e5eb | 1168 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1169 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1170 | } |
36477c24 | 1171 | return 0; |
3fe9a6f1 | 1172 | } |
463ee0b2 | 1173 | } |
ed6116ce | 1174 | if (SvTHINKFIRST(sv)) { |
a0d0e21e LW |
1175 | if (SvROK(sv)) { |
1176 | #ifdef OVERLOAD | |
1177 | SV* tmpstr; | |
1178 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) | |
1179 | return SvIV(tmpstr); | |
1180 | #endif /* OVERLOAD */ | |
1181 | return (IV)SvRV(sv); | |
1182 | } | |
ed6116ce | 1183 | if (SvREADONLY(sv)) { |
748a9306 LW |
1184 | if (SvNOKp(sv)) { |
1185 | if (SvNVX(sv) < 0.0) | |
1186 | return I_V(SvNVX(sv)); | |
1187 | else | |
5d94fbed | 1188 | return (IV) U_V(SvNVX(sv)); |
748a9306 | 1189 | } |
36477c24 | 1190 | if (SvPOKp(sv) && SvLEN(sv)) |
1191 | return asIV(sv); | |
d008e5eb GS |
1192 | { |
1193 | dTHR; | |
1194 | if (ckWARN(WARN_UNINITIALIZED)) | |
22c35a8c | 1195 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb | 1196 | } |
ed6116ce LW |
1197 | return 0; |
1198 | } | |
79072805 | 1199 | } |
463ee0b2 | 1200 | switch (SvTYPE(sv)) { |
463ee0b2 | 1201 | case SVt_NULL: |
79072805 | 1202 | sv_upgrade(sv, SVt_IV); |
8ebc5c01 | 1203 | break; |
463ee0b2 | 1204 | case SVt_PV: |
79072805 | 1205 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 LW |
1206 | break; |
1207 | case SVt_NV: | |
1208 | sv_upgrade(sv, SVt_PVNV); | |
1209 | break; | |
1210 | } | |
748a9306 | 1211 | if (SvNOKp(sv)) { |
a5f75d66 | 1212 | (void)SvIOK_on(sv); |
748a9306 LW |
1213 | if (SvNVX(sv) < 0.0) |
1214 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1215 | else | |
ff68c719 | 1216 | SvUVX(sv) = U_V(SvNVX(sv)); |
748a9306 LW |
1217 | } |
1218 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
a5f75d66 | 1219 | (void)SvIOK_on(sv); |
36477c24 | 1220 | SvIVX(sv) = asIV(sv); |
93a17b20 | 1221 | } |
79072805 | 1222 | else { |
11343788 | 1223 | dTHR; |
599cee73 | 1224 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
22c35a8c | 1225 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
a0d0e21e | 1226 | return 0; |
79072805 | 1227 | } |
760ac839 | 1228 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2iv(%ld)\n", |
a0d0e21e | 1229 | (unsigned long)sv,(long)SvIVX(sv))); |
463ee0b2 | 1230 | return SvIVX(sv); |
79072805 LW |
1231 | } |
1232 | ||
ff68c719 | 1233 | UV |
8ac85365 | 1234 | sv_2uv(register SV *sv) |
ff68c719 | 1235 | { |
1236 | if (!sv) | |
1237 | return 0; | |
1238 | if (SvGMAGICAL(sv)) { | |
1239 | mg_get(sv); | |
1240 | if (SvIOKp(sv)) | |
1241 | return SvUVX(sv); | |
1242 | if (SvNOKp(sv)) | |
1243 | return U_V(SvNVX(sv)); | |
36477c24 | 1244 | if (SvPOKp(sv) && SvLEN(sv)) |
1245 | return asUV(sv); | |
3fe9a6f1 | 1246 | if (!SvROK(sv)) { |
d008e5eb | 1247 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1248 | dTHR; |
d008e5eb | 1249 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1250 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1251 | } |
36477c24 | 1252 | return 0; |
3fe9a6f1 | 1253 | } |
ff68c719 | 1254 | } |
1255 | if (SvTHINKFIRST(sv)) { | |
1256 | if (SvROK(sv)) { | |
1257 | #ifdef OVERLOAD | |
1258 | SV* tmpstr; | |
1259 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) | |
1260 | return SvUV(tmpstr); | |
1261 | #endif /* OVERLOAD */ | |
1262 | return (UV)SvRV(sv); | |
1263 | } | |
1264 | if (SvREADONLY(sv)) { | |
1265 | if (SvNOKp(sv)) { | |
1266 | return U_V(SvNVX(sv)); | |
1267 | } | |
36477c24 | 1268 | if (SvPOKp(sv) && SvLEN(sv)) |
1269 | return asUV(sv); | |
d008e5eb GS |
1270 | { |
1271 | dTHR; | |
1272 | if (ckWARN(WARN_UNINITIALIZED)) | |
22c35a8c | 1273 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb | 1274 | } |
ff68c719 | 1275 | return 0; |
1276 | } | |
1277 | } | |
1278 | switch (SvTYPE(sv)) { | |
1279 | case SVt_NULL: | |
1280 | sv_upgrade(sv, SVt_IV); | |
8ebc5c01 | 1281 | break; |
ff68c719 | 1282 | case SVt_PV: |
1283 | sv_upgrade(sv, SVt_PVIV); | |
1284 | break; | |
1285 | case SVt_NV: | |
1286 | sv_upgrade(sv, SVt_PVNV); | |
1287 | break; | |
1288 | } | |
1289 | if (SvNOKp(sv)) { | |
1290 | (void)SvIOK_on(sv); | |
1291 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1292 | } | |
1293 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
ff68c719 | 1294 | (void)SvIOK_on(sv); |
36477c24 | 1295 | SvUVX(sv) = asUV(sv); |
ff68c719 | 1296 | } |
1297 | else { | |
d008e5eb | 1298 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1299 | dTHR; |
d008e5eb | 1300 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1301 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1302 | } |
ff68c719 | 1303 | return 0; |
1304 | } | |
1305 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2uv(%lu)\n", | |
1306 | (unsigned long)sv,SvUVX(sv))); | |
1307 | return SvUVX(sv); | |
1308 | } | |
1309 | ||
79072805 | 1310 | double |
8ac85365 | 1311 | sv_2nv(register SV *sv) |
79072805 LW |
1312 | { |
1313 | if (!sv) | |
1314 | return 0.0; | |
8990e307 | 1315 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1316 | mg_get(sv); |
1317 | if (SvNOKp(sv)) | |
1318 | return SvNVX(sv); | |
a0d0e21e | 1319 | if (SvPOKp(sv) && SvLEN(sv)) { |
d008e5eb | 1320 | dTHR; |
599cee73 | 1321 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1322 | not_a_number(sv); |
36477c24 | 1323 | SET_NUMERIC_STANDARD(); |
463ee0b2 | 1324 | return atof(SvPVX(sv)); |
a0d0e21e | 1325 | } |
463ee0b2 LW |
1326 | if (SvIOKp(sv)) |
1327 | return (double)SvIVX(sv); | |
16d20bd9 | 1328 | if (!SvROK(sv)) { |
d008e5eb | 1329 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1330 | dTHR; |
d008e5eb | 1331 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1332 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1333 | } |
16d20bd9 AD |
1334 | return 0; |
1335 | } | |
463ee0b2 | 1336 | } |
ed6116ce | 1337 | if (SvTHINKFIRST(sv)) { |
a0d0e21e LW |
1338 | if (SvROK(sv)) { |
1339 | #ifdef OVERLOAD | |
1340 | SV* tmpstr; | |
1341 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) | |
1342 | return SvNV(tmpstr); | |
1343 | #endif /* OVERLOAD */ | |
1344 | return (double)(unsigned long)SvRV(sv); | |
1345 | } | |
ed6116ce | 1346 | if (SvREADONLY(sv)) { |
d008e5eb | 1347 | dTHR; |
748a9306 | 1348 | if (SvPOKp(sv) && SvLEN(sv)) { |
599cee73 | 1349 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1350 | not_a_number(sv); |
36477c24 | 1351 | SET_NUMERIC_STANDARD(); |
ed6116ce | 1352 | return atof(SvPVX(sv)); |
a0d0e21e | 1353 | } |
748a9306 | 1354 | if (SvIOKp(sv)) |
8990e307 | 1355 | return (double)SvIVX(sv); |
599cee73 | 1356 | if (ckWARN(WARN_UNINITIALIZED)) |
22c35a8c | 1357 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
ed6116ce LW |
1358 | return 0.0; |
1359 | } | |
79072805 LW |
1360 | } |
1361 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
1362 | if (SvTYPE(sv) == SVt_IV) |
1363 | sv_upgrade(sv, SVt_PVNV); | |
1364 | else | |
1365 | sv_upgrade(sv, SVt_NV); | |
36477c24 | 1366 | DEBUG_c(SET_NUMERIC_STANDARD()); |
bbce6d69 | 1367 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
1368 | "0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv))); | |
79072805 LW |
1369 | } |
1370 | else if (SvTYPE(sv) < SVt_PVNV) | |
1371 | sv_upgrade(sv, SVt_PVNV); | |
748a9306 LW |
1372 | if (SvIOKp(sv) && |
1373 | (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) | |
93a17b20 | 1374 | { |
463ee0b2 | 1375 | SvNVX(sv) = (double)SvIVX(sv); |
93a17b20 | 1376 | } |
748a9306 | 1377 | else if (SvPOKp(sv) && SvLEN(sv)) { |
d008e5eb | 1378 | dTHR; |
599cee73 | 1379 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1380 | not_a_number(sv); |
36477c24 | 1381 | SET_NUMERIC_STANDARD(); |
463ee0b2 | 1382 | SvNVX(sv) = atof(SvPVX(sv)); |
93a17b20 | 1383 | } |
79072805 | 1384 | else { |
11343788 | 1385 | dTHR; |
599cee73 | 1386 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
22c35a8c | 1387 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
a0d0e21e | 1388 | return 0.0; |
79072805 LW |
1389 | } |
1390 | SvNOK_on(sv); | |
36477c24 | 1391 | DEBUG_c(SET_NUMERIC_STANDARD()); |
bbce6d69 | 1392 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
1393 | "0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv))); | |
463ee0b2 | 1394 | return SvNVX(sv); |
79072805 LW |
1395 | } |
1396 | ||
76e3520e | 1397 | STATIC IV |
8ac85365 | 1398 | asIV(SV *sv) |
36477c24 | 1399 | { |
1400 | I32 numtype = looks_like_number(sv); | |
1401 | double d; | |
1402 | ||
1403 | if (numtype == 1) | |
1404 | return atol(SvPVX(sv)); | |
d008e5eb GS |
1405 | if (!numtype) { |
1406 | dTHR; | |
1407 | if (ckWARN(WARN_NUMERIC)) | |
1408 | not_a_number(sv); | |
1409 | } | |
36477c24 | 1410 | SET_NUMERIC_STANDARD(); |
1411 | d = atof(SvPVX(sv)); | |
1412 | if (d < 0.0) | |
1413 | return I_V(d); | |
1414 | else | |
1415 | return (IV) U_V(d); | |
1416 | } | |
1417 | ||
76e3520e | 1418 | STATIC UV |
8ac85365 | 1419 | asUV(SV *sv) |
36477c24 | 1420 | { |
1421 | I32 numtype = looks_like_number(sv); | |
1422 | ||
84902520 | 1423 | #ifdef HAS_STRTOUL |
36477c24 | 1424 | if (numtype == 1) |
84902520 TB |
1425 | return strtoul(SvPVX(sv), Null(char**), 10); |
1426 | #endif | |
d008e5eb GS |
1427 | if (!numtype) { |
1428 | dTHR; | |
1429 | if (ckWARN(WARN_NUMERIC)) | |
1430 | not_a_number(sv); | |
1431 | } | |
36477c24 | 1432 | SET_NUMERIC_STANDARD(); |
1433 | return U_V(atof(SvPVX(sv))); | |
1434 | } | |
1435 | ||
1436 | I32 | |
8ac85365 | 1437 | looks_like_number(SV *sv) |
36477c24 | 1438 | { |
1439 | register char *s; | |
1440 | register char *send; | |
1441 | register char *sbegin; | |
ff0cee69 | 1442 | I32 numtype; |
36477c24 | 1443 | STRLEN len; |
1444 | ||
1445 | if (SvPOK(sv)) { | |
1446 | sbegin = SvPVX(sv); | |
1447 | len = SvCUR(sv); | |
1448 | } | |
1449 | else if (SvPOKp(sv)) | |
1450 | sbegin = SvPV(sv, len); | |
1451 | else | |
1452 | return 1; | |
1453 | send = sbegin + len; | |
1454 | ||
1455 | s = sbegin; | |
1456 | while (isSPACE(*s)) | |
1457 | s++; | |
36477c24 | 1458 | if (*s == '+' || *s == '-') |
1459 | s++; | |
ff0cee69 | 1460 | |
1461 | /* next must be digit or '.' */ | |
1462 | if (isDIGIT(*s)) { | |
1463 | do { | |
1464 | s++; | |
1465 | } while (isDIGIT(*s)); | |
1466 | if (*s == '.') { | |
1467 | s++; | |
1468 | while (isDIGIT(*s)) /* optional digits after "." */ | |
1469 | s++; | |
1470 | } | |
36477c24 | 1471 | } |
ff0cee69 | 1472 | else if (*s == '.') { |
1473 | s++; | |
1474 | /* no digits before '.' means we need digits after it */ | |
1475 | if (isDIGIT(*s)) { | |
1476 | do { | |
1477 | s++; | |
1478 | } while (isDIGIT(*s)); | |
1479 | } | |
1480 | else | |
1481 | return 0; | |
1482 | } | |
1483 | else | |
1484 | return 0; | |
1485 | ||
1486 | /* | |
1487 | * we return 1 if the number can be converted to _integer_ with atol() | |
1488 | * and 2 if you need (int)atof(). | |
1489 | */ | |
1490 | numtype = 1; | |
1491 | ||
1492 | /* we can have an optional exponent part */ | |
36477c24 | 1493 | if (*s == 'e' || *s == 'E') { |
1494 | numtype = 2; | |
1495 | s++; | |
1496 | if (*s == '+' || *s == '-') | |
1497 | s++; | |
ff0cee69 | 1498 | if (isDIGIT(*s)) { |
1499 | do { | |
1500 | s++; | |
1501 | } while (isDIGIT(*s)); | |
1502 | } | |
1503 | else | |
1504 | return 0; | |
36477c24 | 1505 | } |
1506 | while (isSPACE(*s)) | |
1507 | s++; | |
1508 | if (s >= send) | |
1509 | return numtype; | |
1510 | if (len == 10 && memEQ(sbegin, "0 but true", 10)) | |
1511 | return 1; | |
1512 | return 0; | |
1513 | } | |
1514 | ||
79072805 | 1515 | char * |
8ac85365 | 1516 | sv_2pv(register SV *sv, STRLEN *lp) |
79072805 LW |
1517 | { |
1518 | register char *s; | |
1519 | int olderrno; | |
46fc3d4c | 1520 | SV *tsv; |
96827780 | 1521 | char tmpbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
79072805 | 1522 | |
463ee0b2 LW |
1523 | if (!sv) { |
1524 | *lp = 0; | |
1525 | return ""; | |
1526 | } | |
8990e307 | 1527 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1528 | mg_get(sv); |
1529 | if (SvPOKp(sv)) { | |
1530 | *lp = SvCUR(sv); | |
1531 | return SvPVX(sv); | |
1532 | } | |
1533 | if (SvIOKp(sv)) { | |
96827780 | 1534 | (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv)); |
46fc3d4c | 1535 | tsv = Nullsv; |
a0d0e21e | 1536 | goto tokensave; |
463ee0b2 LW |
1537 | } |
1538 | if (SvNOKp(sv)) { | |
36477c24 | 1539 | SET_NUMERIC_STANDARD(); |
96827780 | 1540 | Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf); |
46fc3d4c | 1541 | tsv = Nullsv; |
a0d0e21e | 1542 | goto tokensave; |
463ee0b2 | 1543 | } |
16d20bd9 | 1544 | if (!SvROK(sv)) { |
d008e5eb | 1545 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1546 | dTHR; |
d008e5eb | 1547 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
22c35a8c | 1548 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
c6ee37c5 | 1549 | } |
16d20bd9 AD |
1550 | *lp = 0; |
1551 | return ""; | |
1552 | } | |
463ee0b2 | 1553 | } |
ed6116ce LW |
1554 | if (SvTHINKFIRST(sv)) { |
1555 | if (SvROK(sv)) { | |
a0d0e21e LW |
1556 | #ifdef OVERLOAD |
1557 | SV* tmpstr; | |
1558 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string))) | |
1559 | return SvPV(tmpstr,*lp); | |
1560 | #endif /* OVERLOAD */ | |
ed6116ce LW |
1561 | sv = (SV*)SvRV(sv); |
1562 | if (!sv) | |
1563 | s = "NULLREF"; | |
1564 | else { | |
f9277f47 IZ |
1565 | MAGIC *mg; |
1566 | ||
ed6116ce | 1567 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
1568 | case SVt_PVMG: |
1569 | if ( ((SvFLAGS(sv) & | |
1570 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) | |
3149a8e4 | 1571 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 1572 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
f9277f47 | 1573 | && (mg = mg_find(sv, 'r'))) { |
5c0ca799 | 1574 | dTHR; |
2cd61cdb | 1575 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 1576 | |
2cd61cdb | 1577 | if (!mg->mg_ptr) { |
8782bef2 GB |
1578 | char *fptr = "msix"; |
1579 | char reflags[6]; | |
1580 | char ch; | |
1581 | int left = 0; | |
1582 | int right = 4; | |
1583 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
1584 | ||
1585 | while(ch = *fptr++) { | |
1586 | if(reganch & 1) { | |
1587 | reflags[left++] = ch; | |
1588 | } | |
1589 | else { | |
1590 | reflags[right--] = ch; | |
1591 | } | |
1592 | reganch >>= 1; | |
1593 | } | |
1594 | if(left != 4) { | |
1595 | reflags[left] = '-'; | |
1596 | left = 5; | |
1597 | } | |
1598 | ||
1599 | mg->mg_len = re->prelen + 4 + left; | |
1600 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
1601 | Copy("(?", mg->mg_ptr, 2, char); | |
1602 | Copy(reflags, mg->mg_ptr+2, left, char); | |
1603 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
1604 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
1605 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
1606 | mg->mg_ptr[mg->mg_len] = 0; | |
1607 | } | |
3280af22 | 1608 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
1609 | *lp = mg->mg_len; |
1610 | return mg->mg_ptr; | |
f9277f47 IZ |
1611 | } |
1612 | /* Fall through */ | |
ed6116ce LW |
1613 | case SVt_NULL: |
1614 | case SVt_IV: | |
1615 | case SVt_NV: | |
1616 | case SVt_RV: | |
1617 | case SVt_PV: | |
1618 | case SVt_PVIV: | |
1619 | case SVt_PVNV: | |
f9277f47 | 1620 | case SVt_PVBM: s = "SCALAR"; break; |
ed6116ce LW |
1621 | case SVt_PVLV: s = "LVALUE"; break; |
1622 | case SVt_PVAV: s = "ARRAY"; break; | |
1623 | case SVt_PVHV: s = "HASH"; break; | |
1624 | case SVt_PVCV: s = "CODE"; break; | |
1625 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 1626 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 1627 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
1628 | default: s = "UNKNOWN"; break; |
1629 | } | |
46fc3d4c | 1630 | tsv = NEWSV(0,0); |
ed6116ce | 1631 | if (SvOBJECT(sv)) |
46fc3d4c | 1632 | sv_setpvf(tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); |
ed6116ce | 1633 | else |
46fc3d4c | 1634 | sv_setpv(tsv, s); |
1635 | sv_catpvf(tsv, "(0x%lx)", (unsigned long)sv); | |
a0d0e21e | 1636 | goto tokensaveref; |
463ee0b2 | 1637 | } |
ed6116ce LW |
1638 | *lp = strlen(s); |
1639 | return s; | |
79072805 | 1640 | } |
ed6116ce | 1641 | if (SvREADONLY(sv)) { |
748a9306 | 1642 | if (SvNOKp(sv)) { |
36477c24 | 1643 | SET_NUMERIC_STANDARD(); |
96827780 | 1644 | Gconvert(SvNVX(sv), DBL_DIG, 0, tmpbuf); |
46fc3d4c | 1645 | tsv = Nullsv; |
a0d0e21e | 1646 | goto tokensave; |
ed6116ce | 1647 | } |
8bb9dbe4 | 1648 | if (SvIOKp(sv)) { |
96827780 | 1649 | (void)sprintf(tmpbuf,"%ld",(long)SvIVX(sv)); |
46fc3d4c | 1650 | tsv = Nullsv; |
8bb9dbe4 LW |
1651 | goto tokensave; |
1652 | } | |
d008e5eb GS |
1653 | { |
1654 | dTHR; | |
1655 | if (ckWARN(WARN_UNINITIALIZED)) | |
22c35a8c | 1656 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
d008e5eb | 1657 | } |
ed6116ce LW |
1658 | *lp = 0; |
1659 | return ""; | |
79072805 | 1660 | } |
79072805 | 1661 | } |
c6f8c383 | 1662 | (void)SvUPGRADE(sv, SVt_PV); |
748a9306 | 1663 | if (SvNOKp(sv)) { |
79072805 LW |
1664 | if (SvTYPE(sv) < SVt_PVNV) |
1665 | sv_upgrade(sv, SVt_PVNV); | |
1666 | SvGROW(sv, 28); | |
463ee0b2 | 1667 | s = SvPVX(sv); |
79072805 | 1668 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 1669 | #ifdef apollo |
463ee0b2 | 1670 | if (SvNVX(sv) == 0.0) |
79072805 LW |
1671 | (void)strcpy(s,"0"); |
1672 | else | |
1673 | #endif /*apollo*/ | |
bbce6d69 | 1674 | { |
36477c24 | 1675 | SET_NUMERIC_STANDARD(); |
a0d0e21e | 1676 | Gconvert(SvNVX(sv), DBL_DIG, 0, s); |
bbce6d69 | 1677 | } |
79072805 | 1678 | errno = olderrno; |
a0d0e21e LW |
1679 | #ifdef FIXNEGATIVEZERO |
1680 | if (*s == '-' && s[1] == '0' && !s[2]) | |
1681 | strcpy(s,"0"); | |
1682 | #endif | |
79072805 LW |
1683 | while (*s) s++; |
1684 | #ifdef hcx | |
1685 | if (s[-1] == '.') | |
46fc3d4c | 1686 | *--s = '\0'; |
79072805 LW |
1687 | #endif |
1688 | } | |
748a9306 | 1689 | else if (SvIOKp(sv)) { |
64f14228 | 1690 | U32 oldIOK = SvIOK(sv); |
79072805 LW |
1691 | if (SvTYPE(sv) < SVt_PVIV) |
1692 | sv_upgrade(sv, SVt_PVIV); | |
79072805 | 1693 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
84902520 | 1694 | sv_setpviv(sv, SvIVX(sv)); |
79072805 | 1695 | errno = olderrno; |
46fc3d4c | 1696 | s = SvEND(sv); |
64f14228 GA |
1697 | if (oldIOK) |
1698 | SvIOK_on(sv); | |
1699 | else | |
1700 | SvIOKp_on(sv); | |
79072805 LW |
1701 | } |
1702 | else { | |
11343788 | 1703 | dTHR; |
599cee73 | 1704 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
22c35a8c | 1705 | warner(WARN_UNINITIALIZED, PL_warn_uninit); |
a0d0e21e LW |
1706 | *lp = 0; |
1707 | return ""; | |
79072805 | 1708 | } |
463ee0b2 LW |
1709 | *lp = s - SvPVX(sv); |
1710 | SvCUR_set(sv, *lp); | |
79072805 | 1711 | SvPOK_on(sv); |
760ac839 | 1712 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv))); |
463ee0b2 | 1713 | return SvPVX(sv); |
a0d0e21e LW |
1714 | |
1715 | tokensave: | |
1716 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
1717 | /* Sneaky stuff here */ | |
1718 | ||
1719 | tokensaveref: | |
46fc3d4c | 1720 | if (!tsv) |
96827780 | 1721 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 1722 | sv_2mortal(tsv); |
1723 | *lp = SvCUR(tsv); | |
1724 | return SvPVX(tsv); | |
a0d0e21e LW |
1725 | } |
1726 | else { | |
1727 | STRLEN len; | |
46fc3d4c | 1728 | char *t; |
1729 | ||
1730 | if (tsv) { | |
1731 | sv_2mortal(tsv); | |
1732 | t = SvPVX(tsv); | |
1733 | len = SvCUR(tsv); | |
1734 | } | |
1735 | else { | |
96827780 MB |
1736 | t = tmpbuf; |
1737 | len = strlen(tmpbuf); | |
46fc3d4c | 1738 | } |
a0d0e21e | 1739 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 1740 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
1741 | t = "0"; | |
1742 | len = 1; | |
1743 | } | |
a0d0e21e LW |
1744 | #endif |
1745 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 1746 | *lp = len; |
a0d0e21e LW |
1747 | s = SvGROW(sv, len + 1); |
1748 | SvCUR_set(sv, len); | |
46fc3d4c | 1749 | (void)strcpy(s, t); |
6bf554b4 | 1750 | SvPOKp_on(sv); |
a0d0e21e LW |
1751 | return s; |
1752 | } | |
463ee0b2 LW |
1753 | } |
1754 | ||
1755 | /* This function is only called on magical items */ | |
1756 | bool | |
8ac85365 | 1757 | sv_2bool(register SV *sv) |
463ee0b2 | 1758 | { |
8990e307 | 1759 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
1760 | mg_get(sv); |
1761 | ||
a0d0e21e LW |
1762 | if (!SvOK(sv)) |
1763 | return 0; | |
1764 | if (SvROK(sv)) { | |
1765 | #ifdef OVERLOAD | |
1766 | { | |
11343788 | 1767 | dTHR; |
a0d0e21e LW |
1768 | SV* tmpsv; |
1769 | if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) | |
1770 | return SvTRUE(tmpsv); | |
1771 | } | |
1772 | #endif /* OVERLOAD */ | |
1773 | return SvRV(sv) != 0; | |
1774 | } | |
463ee0b2 | 1775 | if (SvPOKp(sv)) { |
11343788 MB |
1776 | register XPV* Xpvtmp; |
1777 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
1778 | (*Xpvtmp->xpv_pv > '0' || | |
1779 | Xpvtmp->xpv_cur > 1 || | |
1780 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
1781 | return 1; |
1782 | else | |
1783 | return 0; | |
1784 | } | |
1785 | else { | |
1786 | if (SvIOKp(sv)) | |
1787 | return SvIVX(sv) != 0; | |
1788 | else { | |
1789 | if (SvNOKp(sv)) | |
1790 | return SvNVX(sv) != 0.0; | |
1791 | else | |
1792 | return FALSE; | |
1793 | } | |
1794 | } | |
79072805 LW |
1795 | } |
1796 | ||
1797 | /* Note: sv_setsv() should not be called with a source string that needs | |
463ee0b2 | 1798 | * to be reused, since it may destroy the source string if it is marked |
79072805 LW |
1799 | * as temporary. |
1800 | */ | |
1801 | ||
1802 | void | |
8ac85365 | 1803 | sv_setsv(SV *dstr, register SV *sstr) |
79072805 | 1804 | { |
11343788 | 1805 | dTHR; |
8990e307 LW |
1806 | register U32 sflags; |
1807 | register int dtype; | |
1808 | register int stype; | |
463ee0b2 | 1809 | |
79072805 LW |
1810 | if (sstr == dstr) |
1811 | return; | |
2213622d | 1812 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 1813 | if (!sstr) |
3280af22 | 1814 | sstr = &PL_sv_undef; |
8990e307 LW |
1815 | stype = SvTYPE(sstr); |
1816 | dtype = SvTYPE(dstr); | |
79072805 | 1817 | |
8e07c86e AD |
1818 | if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) { |
1819 | sv_unglob(dstr); /* so fake GLOB won't perpetuate */ | |
4633a7c4 LW |
1820 | sv_setpvn(dstr, "", 0); |
1821 | (void)SvPOK_only(dstr); | |
8e07c86e AD |
1822 | dtype = SvTYPE(dstr); |
1823 | } | |
1824 | ||
a0d0e21e LW |
1825 | #ifdef OVERLOAD |
1826 | SvAMAGIC_off(dstr); | |
1827 | #endif /* OVERLOAD */ | |
463ee0b2 | 1828 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 1829 | |
8990e307 | 1830 | switch (stype) { |
79072805 | 1831 | case SVt_NULL: |
aece5585 | 1832 | undef_sstr: |
20408e3c GS |
1833 | if (dtype != SVt_PVGV) { |
1834 | (void)SvOK_off(dstr); | |
1835 | return; | |
1836 | } | |
1837 | break; | |
463ee0b2 | 1838 | case SVt_IV: |
aece5585 GA |
1839 | if (SvIOK(sstr)) { |
1840 | switch (dtype) { | |
1841 | case SVt_NULL: | |
8990e307 | 1842 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
1843 | break; |
1844 | case SVt_NV: | |
8990e307 | 1845 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
1846 | break; |
1847 | case SVt_RV: | |
1848 | case SVt_PV: | |
a0d0e21e | 1849 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
1850 | break; |
1851 | } | |
1852 | (void)SvIOK_only(dstr); | |
1853 | SvIVX(dstr) = SvIVX(sstr); | |
1854 | SvTAINT(dstr); | |
1855 | return; | |
8990e307 | 1856 | } |
aece5585 GA |
1857 | goto undef_sstr; |
1858 | ||
463ee0b2 | 1859 | case SVt_NV: |
aece5585 GA |
1860 | if (SvNOK(sstr)) { |
1861 | switch (dtype) { | |
1862 | case SVt_NULL: | |
1863 | case SVt_IV: | |
8990e307 | 1864 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
1865 | break; |
1866 | case SVt_RV: | |
1867 | case SVt_PV: | |
1868 | case SVt_PVIV: | |
a0d0e21e | 1869 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
1870 | break; |
1871 | } | |
1872 | SvNVX(dstr) = SvNVX(sstr); | |
1873 | (void)SvNOK_only(dstr); | |
1874 | SvTAINT(dstr); | |
1875 | return; | |
8990e307 | 1876 | } |
aece5585 GA |
1877 | goto undef_sstr; |
1878 | ||
ed6116ce | 1879 | case SVt_RV: |
8990e307 | 1880 | if (dtype < SVt_RV) |
ed6116ce | 1881 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 1882 | else if (dtype == SVt_PVGV && |
1883 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
1884 | sstr = SvRV(sstr); | |
a5f75d66 | 1885 | if (sstr == dstr) { |
3280af22 | 1886 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 AD |
1887 | GvIMPORTED_on(dstr); |
1888 | GvMULTI_on(dstr); | |
1889 | return; | |
1890 | } | |
c07a80fd | 1891 | goto glob_assign; |
1892 | } | |
ed6116ce | 1893 | break; |
463ee0b2 | 1894 | case SVt_PV: |
fc36a67e | 1895 | case SVt_PVFM: |
8990e307 | 1896 | if (dtype < SVt_PV) |
463ee0b2 | 1897 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
1898 | break; |
1899 | case SVt_PVIV: | |
8990e307 | 1900 | if (dtype < SVt_PVIV) |
463ee0b2 | 1901 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
1902 | break; |
1903 | case SVt_PVNV: | |
8990e307 | 1904 | if (dtype < SVt_PVNV) |
463ee0b2 | 1905 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 1906 | break; |
4633a7c4 LW |
1907 | case SVt_PVAV: |
1908 | case SVt_PVHV: | |
1909 | case SVt_PVCV: | |
4633a7c4 | 1910 | case SVt_PVIO: |
533c011a | 1911 | if (PL_op) |
4633a7c4 | 1912 | croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
22c35a8c | 1913 | PL_op_name[PL_op->op_type]); |
4633a7c4 LW |
1914 | else |
1915 | croak("Bizarre copy of %s", sv_reftype(sstr, 0)); | |
1916 | break; | |
1917 | ||
79072805 | 1918 | case SVt_PVGV: |
8990e307 | 1919 | if (dtype <= SVt_PVGV) { |
c07a80fd | 1920 | glob_assign: |
a5f75d66 | 1921 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
1922 | char *name = GvNAME(sstr); |
1923 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 1924 | sv_upgrade(dstr, SVt_PVGV); |
a0d0e21e | 1925 | sv_magic(dstr, dstr, '*', name, len); |
85aff577 | 1926 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
1927 | GvNAME(dstr) = savepvn(name, len); |
1928 | GvNAMELEN(dstr) = len; | |
1929 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
1930 | } | |
7bac28a0 | 1931 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
1932 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
1933 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
7bac28a0 | 1934 | croak("Can't redefine active sort subroutine %s", |
1935 | GvNAME(dstr)); | |
a0d0e21e | 1936 | (void)SvOK_off(dstr); |
a5f75d66 | 1937 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 1938 | gp_free((GV*)dstr); |
79072805 | 1939 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
8990e307 | 1940 | SvTAINT(dstr); |
3280af22 | 1941 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 AD |
1942 | GvIMPORTED_on(dstr); |
1943 | GvMULTI_on(dstr); | |
79072805 LW |
1944 | return; |
1945 | } | |
1946 | /* FALL THROUGH */ | |
1947 | ||
1948 | default: | |
973f89ab CS |
1949 | if (SvGMAGICAL(sstr)) { |
1950 | mg_get(sstr); | |
1951 | if (SvTYPE(sstr) != stype) { | |
1952 | stype = SvTYPE(sstr); | |
1953 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
1954 | goto glob_assign; | |
1955 | } | |
1956 | } | |
ded42b9f CS |
1957 | if (stype == SVt_PVLV) |
1958 | SvUPGRADE(dstr, SVt_PVNV); | |
1959 | else | |
1960 | SvUPGRADE(dstr, stype); | |
79072805 LW |
1961 | } |
1962 | ||
8990e307 LW |
1963 | sflags = SvFLAGS(sstr); |
1964 | ||
1965 | if (sflags & SVf_ROK) { | |
1966 | if (dtype >= SVt_PV) { | |
1967 | if (dtype == SVt_PVGV) { | |
1968 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
1969 | SV *dref = 0; | |
a5f75d66 | 1970 | int intro = GvINTRO(dstr); |
a0d0e21e LW |
1971 | |
1972 | if (intro) { | |
1973 | GP *gp; | |
1974 | GvGP(dstr)->gp_refcnt--; | |
a5f75d66 | 1975 | GvINTRO_off(dstr); /* one-shot flag */ |
a0d0e21e | 1976 | Newz(602,gp, 1, GP); |
44a8e56a | 1977 | GvGP(dstr) = gp_ref(gp); |
a0d0e21e | 1978 | GvSV(dstr) = NEWSV(72,0); |
3280af22 | 1979 | GvLINE(dstr) = PL_curcop->cop_line; |
1edc1566 | 1980 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 1981 | } |
a5f75d66 | 1982 | GvMULTI_on(dstr); |
8990e307 LW |
1983 | switch (SvTYPE(sref)) { |
1984 | case SVt_PVAV: | |
a0d0e21e LW |
1985 | if (intro) |
1986 | SAVESPTR(GvAV(dstr)); | |
1987 | else | |
1988 | dref = (SV*)GvAV(dstr); | |
8990e307 | 1989 | GvAV(dstr) = (AV*)sref; |
3280af22 | 1990 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 1991 | GvIMPORTED_AV_on(dstr); |
8990e307 LW |
1992 | break; |
1993 | case SVt_PVHV: | |
a0d0e21e LW |
1994 | if (intro) |
1995 | SAVESPTR(GvHV(dstr)); | |
1996 | else | |
1997 | dref = (SV*)GvHV(dstr); | |
8990e307 | 1998 | GvHV(dstr) = (HV*)sref; |
3280af22 | 1999 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 2000 | GvIMPORTED_HV_on(dstr); |
8990e307 LW |
2001 | break; |
2002 | case SVt_PVCV: | |
8ebc5c01 | 2003 | if (intro) { |
2004 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
2005 | SvREFCNT_dec(GvCV(dstr)); | |
2006 | GvCV(dstr) = Nullcv; | |
68dc0745 | 2007 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 2008 | PL_sub_generation++; |
8ebc5c01 | 2009 | } |
a0d0e21e | 2010 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 2011 | } |
68dc0745 | 2012 | else |
2013 | dref = (SV*)GvCV(dstr); | |
2014 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 2015 | CV* cv = GvCV(dstr); |
4633a7c4 | 2016 | if (cv) { |
68dc0745 | 2017 | if (!GvCVGEN((GV*)dstr) && |
2018 | (CvROOT(cv) || CvXSUB(cv))) | |
2019 | { | |
fe5e78ed GS |
2020 | SV *const_sv = cv_const_sv(cv); |
2021 | bool const_changed = TRUE; | |
2022 | if(const_sv) | |
2023 | const_changed = sv_cmp(const_sv, | |
2024 | op_const_sv(CvSTART((CV*)sref), | |
2025 | Nullcv)); | |
7bac28a0 | 2026 | /* ahem, death to those who redefine |
2027 | * active sort subs */ | |
3280af22 NIS |
2028 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
2029 | PL_sortcop == CvSTART(cv)) | |
7bac28a0 | 2030 | croak( |
2031 | "Can't redefine active sort subroutine %s", | |
2032 | GvENAME((GV*)dstr)); | |
599cee73 | 2033 | if (ckWARN(WARN_REDEFINE) || (const_changed && const_sv)) { |
2f34f9d4 IZ |
2034 | if (!(CvGV(cv) && GvSTASH(CvGV(cv)) |
2035 | && HvNAME(GvSTASH(CvGV(cv))) | |
2036 | && strEQ(HvNAME(GvSTASH(CvGV(cv))), | |
2037 | "autouse"))) | |
599cee73 | 2038 | warner(WARN_REDEFINE, const_sv ? |
fe5e78ed GS |
2039 | "Constant subroutine %s redefined" |
2040 | : "Subroutine %s redefined", | |
2f34f9d4 IZ |
2041 | GvENAME((GV*)dstr)); |
2042 | } | |
9607fc9c | 2043 | } |
3fe9a6f1 | 2044 | cv_ckproto(cv, (GV*)dstr, |
2045 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 2046 | } |
a5f75d66 | 2047 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 2048 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 2049 | GvASSUMECV_on(dstr); |
3280af22 | 2050 | PL_sub_generation++; |
a5f75d66 | 2051 | } |
3280af22 | 2052 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 2053 | GvIMPORTED_CV_on(dstr); |
8990e307 | 2054 | break; |
91bba347 LW |
2055 | case SVt_PVIO: |
2056 | if (intro) | |
2057 | SAVESPTR(GvIOp(dstr)); | |
2058 | else | |
2059 | dref = (SV*)GvIOp(dstr); | |
2060 | GvIOp(dstr) = (IO*)sref; | |
2061 | break; | |
8990e307 | 2062 | default: |
a0d0e21e LW |
2063 | if (intro) |
2064 | SAVESPTR(GvSV(dstr)); | |
2065 | else | |
2066 | dref = (SV*)GvSV(dstr); | |
8990e307 | 2067 | GvSV(dstr) = sref; |
3280af22 | 2068 | if (PL_curcop->cop_stash != GvSTASH(dstr)) |
a5f75d66 | 2069 | GvIMPORTED_SV_on(dstr); |
8990e307 LW |
2070 | break; |
2071 | } | |
2072 | if (dref) | |
2073 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
2074 | if (intro) |
2075 | SAVEFREESV(sref); | |
8990e307 LW |
2076 | SvTAINT(dstr); |
2077 | return; | |
2078 | } | |
a0d0e21e | 2079 | if (SvPVX(dstr)) { |
760ac839 | 2080 | (void)SvOOK_off(dstr); /* backoff */ |
8990e307 | 2081 | Safefree(SvPVX(dstr)); |
a0d0e21e LW |
2082 | SvLEN(dstr)=SvCUR(dstr)=0; |
2083 | } | |
8990e307 | 2084 | } |
a0d0e21e | 2085 | (void)SvOK_off(dstr); |
8990e307 | 2086 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 2087 | SvROK_on(dstr); |
8990e307 | 2088 | if (sflags & SVp_NOK) { |
ed6116ce LW |
2089 | SvNOK_on(dstr); |
2090 | SvNVX(dstr) = SvNVX(sstr); | |
2091 | } | |
8990e307 | 2092 | if (sflags & SVp_IOK) { |
a0d0e21e | 2093 | (void)SvIOK_on(dstr); |
ed6116ce LW |
2094 | SvIVX(dstr) = SvIVX(sstr); |
2095 | } | |
a0d0e21e LW |
2096 | #ifdef OVERLOAD |
2097 | if (SvAMAGIC(sstr)) { | |
2098 | SvAMAGIC_on(dstr); | |
2099 | } | |
2100 | #endif /* OVERLOAD */ | |
ed6116ce | 2101 | } |
8990e307 | 2102 | else if (sflags & SVp_POK) { |
79072805 LW |
2103 | |
2104 | /* | |
2105 | * Check to see if we can just swipe the string. If so, it's a | |
2106 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
2107 | * It might even be a win on short strings if SvPVX(dstr) |
2108 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
2109 | */ |
2110 | ||
ff68c719 | 2111 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 2112 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
a5f75d66 AD |
2113 | !(sflags & SVf_OOK)) /* and not involved in OOK hack? */ |
2114 | { | |
adbc6bb1 | 2115 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
2116 | if (SvOOK(dstr)) { |
2117 | SvFLAGS(dstr) &= ~SVf_OOK; | |
2118 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
2119 | } | |
2120 | else | |
2121 | Safefree(SvPVX(dstr)); | |
79072805 | 2122 | } |
a5f75d66 | 2123 | (void)SvPOK_only(dstr); |
463ee0b2 | 2124 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
2125 | SvLEN_set(dstr, SvLEN(sstr)); |
2126 | SvCUR_set(dstr, SvCUR(sstr)); | |
79072805 | 2127 | SvTEMP_off(dstr); |
a5f75d66 | 2128 | (void)SvOK_off(sstr); |
79072805 LW |
2129 | SvPV_set(sstr, Nullch); |
2130 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
2131 | SvCUR_set(sstr, 0); |
2132 | SvTEMP_off(sstr); | |
79072805 LW |
2133 | } |
2134 | else { /* have to copy actual string */ | |
8990e307 LW |
2135 | STRLEN len = SvCUR(sstr); |
2136 | ||
2137 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
2138 | Move(SvPVX(sstr),SvPVX(dstr),len,char); | |
2139 | SvCUR_set(dstr, len); | |
2140 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 2141 | (void)SvPOK_only(dstr); |
79072805 LW |
2142 | } |
2143 | /*SUPPRESS 560*/ | |
8990e307 | 2144 | if (sflags & SVp_NOK) { |
79072805 | 2145 | SvNOK_on(dstr); |
463ee0b2 | 2146 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 2147 | } |
8990e307 | 2148 | if (sflags & SVp_IOK) { |
a0d0e21e | 2149 | (void)SvIOK_on(dstr); |
463ee0b2 | 2150 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
2151 | } |
2152 | } | |
8990e307 | 2153 | else if (sflags & SVp_NOK) { |
463ee0b2 | 2154 | SvNVX(dstr) = SvNVX(sstr); |
a0d0e21e | 2155 | (void)SvNOK_only(dstr); |
79072805 | 2156 | if (SvIOK(sstr)) { |
a0d0e21e | 2157 | (void)SvIOK_on(dstr); |
463ee0b2 | 2158 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
2159 | } |
2160 | } | |
8990e307 | 2161 | else if (sflags & SVp_IOK) { |
a0d0e21e | 2162 | (void)SvIOK_only(dstr); |
463ee0b2 | 2163 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
2164 | } |
2165 | else { | |
20408e3c | 2166 | if (dtype == SVt_PVGV) { |
599cee73 PM |
2167 | if (ckWARN(WARN_UNSAFE)) |
2168 | warner(WARN_UNSAFE, "Undefined value assigned to typeglob"); | |
20408e3c GS |
2169 | } |
2170 | else | |
2171 | (void)SvOK_off(dstr); | |
a0d0e21e | 2172 | } |
463ee0b2 | 2173 | SvTAINT(dstr); |
79072805 LW |
2174 | } |
2175 | ||
2176 | void | |
ef50df4b GS |
2177 | sv_setsv_mg(SV *dstr, register SV *sstr) |
2178 | { | |
2179 | sv_setsv(dstr,sstr); | |
2180 | SvSETMAGIC(dstr); | |
2181 | } | |
2182 | ||
2183 | void | |
8ac85365 | 2184 | sv_setpvn(register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 2185 | { |
c6f8c383 | 2186 | register char *dptr; |
4561caa4 CS |
2187 | assert(len >= 0); /* STRLEN is probably unsigned, so this may |
2188 | elicit a warning, but it won't hurt. */ | |
2213622d | 2189 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 2190 | if (!ptr) { |
a0d0e21e | 2191 | (void)SvOK_off(sv); |
463ee0b2 LW |
2192 | return; |
2193 | } | |
c07a80fd | 2194 | if (SvTYPE(sv) >= SVt_PV) { |
2195 | if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) | |
2196 | sv_unglob(sv); | |
2197 | } | |
c6f8c383 GA |
2198 | else |
2199 | sv_upgrade(sv, SVt_PV); | |
2200 | ||
79072805 | 2201 | SvGROW(sv, len + 1); |
c6f8c383 GA |
2202 | dptr = SvPVX(sv); |
2203 | Move(ptr,dptr,len,char); | |
2204 | dptr[len] = '\0'; | |
79072805 | 2205 | SvCUR_set(sv, len); |
a0d0e21e | 2206 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2207 | SvTAINT(sv); |
79072805 LW |
2208 | } |
2209 | ||
2210 | void | |
ef50df4b GS |
2211 | sv_setpvn_mg(register SV *sv, register const char *ptr, register STRLEN len) |
2212 | { | |
2213 | sv_setpvn(sv,ptr,len); | |
2214 | SvSETMAGIC(sv); | |
2215 | } | |
2216 | ||
2217 | void | |
8ac85365 | 2218 | sv_setpv(register SV *sv, register const char *ptr) |
79072805 LW |
2219 | { |
2220 | register STRLEN len; | |
2221 | ||
2213622d | 2222 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 2223 | if (!ptr) { |
a0d0e21e | 2224 | (void)SvOK_off(sv); |
463ee0b2 LW |
2225 | return; |
2226 | } | |
79072805 | 2227 | len = strlen(ptr); |
c07a80fd | 2228 | if (SvTYPE(sv) >= SVt_PV) { |
2229 | if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) | |
2230 | sv_unglob(sv); | |
2231 | } | |
c6f8c383 GA |
2232 | else |
2233 | sv_upgrade(sv, SVt_PV); | |
2234 | ||
79072805 | 2235 | SvGROW(sv, len + 1); |
463ee0b2 | 2236 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 2237 | SvCUR_set(sv, len); |
a0d0e21e | 2238 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 LW |
2239 | SvTAINT(sv); |
2240 | } | |
2241 | ||
2242 | void | |
ef50df4b GS |
2243 | sv_setpv_mg(register SV *sv, register const char *ptr) |
2244 | { | |
2245 | sv_setpv(sv,ptr); | |
2246 | SvSETMAGIC(sv); | |
2247 | } | |
2248 | ||
2249 | void | |
8ac85365 | 2250 | sv_usepvn(register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 2251 | { |
2213622d | 2252 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 2253 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 2254 | if (!ptr) { |
a0d0e21e | 2255 | (void)SvOK_off(sv); |
463ee0b2 LW |
2256 | return; |
2257 | } | |
a0ed51b3 | 2258 | (void)SvOOK_off(sv); |
463ee0b2 LW |
2259 | if (SvPVX(sv)) |
2260 | Safefree(SvPVX(sv)); | |
2261 | Renew(ptr, len+1, char); | |
2262 | SvPVX(sv) = ptr; | |
2263 | SvCUR_set(sv, len); | |
2264 | SvLEN_set(sv, len+1); | |
2265 | *SvEND(sv) = '\0'; | |
a0d0e21e | 2266 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2267 | SvTAINT(sv); |
79072805 LW |
2268 | } |
2269 | ||
ef50df4b GS |
2270 | void |
2271 | sv_usepvn_mg(register SV *sv, register char *ptr, register STRLEN len) | |
2272 | { | |
51c1089b | 2273 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
2274 | SvSETMAGIC(sv); |
2275 | } | |
2276 | ||
76e3520e | 2277 | STATIC void |
8ac85365 | 2278 | sv_check_thinkfirst(register SV *sv) |
0f15f207 | 2279 | { |
2213622d GA |
2280 | if (SvREADONLY(sv)) { |
2281 | dTHR; | |
3280af22 | 2282 | if (PL_curcop != &PL_compiling) |
22c35a8c | 2283 | croak(PL_no_modify); |
0f15f207 | 2284 | } |
2213622d GA |
2285 | if (SvROK(sv)) |
2286 | sv_unref(sv); | |
0f15f207 MB |
2287 | } |
2288 | ||
79072805 | 2289 | void |
8ac85365 NIS |
2290 | sv_chop(register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */ |
2291 | ||
2292 | ||
79072805 LW |
2293 | { |
2294 | register STRLEN delta; | |
2295 | ||
a0d0e21e | 2296 | if (!ptr || !SvPOKp(sv)) |
79072805 | 2297 | return; |
2213622d | 2298 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
2299 | if (SvTYPE(sv) < SVt_PVIV) |
2300 | sv_upgrade(sv,SVt_PVIV); | |
2301 | ||
2302 | if (!SvOOK(sv)) { | |
463ee0b2 | 2303 | SvIVX(sv) = 0; |
79072805 LW |
2304 | SvFLAGS(sv) |= SVf_OOK; |
2305 | } | |
8990e307 | 2306 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK); |
463ee0b2 | 2307 | delta = ptr - SvPVX(sv); |
79072805 LW |
2308 | SvLEN(sv) -= delta; |
2309 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
2310 | SvPVX(sv) += delta; |
2311 | SvIVX(sv) += delta; | |
79072805 LW |
2312 | } |
2313 | ||
2314 | void | |
8ac85365 | 2315 | sv_catpvn(register SV *sv, register char *ptr, register STRLEN len) |
79072805 | 2316 | { |
463ee0b2 | 2317 | STRLEN tlen; |
748a9306 | 2318 | char *junk; |
a0d0e21e | 2319 | |
748a9306 | 2320 | junk = SvPV_force(sv, tlen); |
463ee0b2 | 2321 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
2322 | if (ptr == junk) |
2323 | ptr = SvPVX(sv); | |
463ee0b2 | 2324 | Move(ptr,SvPVX(sv)+tlen,len,char); |
79072805 LW |
2325 | SvCUR(sv) += len; |
2326 | *SvEND(sv) = '\0'; | |
a0d0e21e | 2327 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2328 | SvTAINT(sv); |
79072805 LW |
2329 | } |
2330 | ||
2331 | void | |
ef50df4b GS |
2332 | sv_catpvn_mg(register SV *sv, register char *ptr, register STRLEN len) |
2333 | { | |
2334 | sv_catpvn(sv,ptr,len); | |
2335 | SvSETMAGIC(sv); | |
2336 | } | |
2337 | ||
2338 | void | |
8ac85365 | 2339 | sv_catsv(SV *dstr, register SV *sstr) |
79072805 LW |
2340 | { |
2341 | char *s; | |
463ee0b2 | 2342 | STRLEN len; |
79072805 LW |
2343 | if (!sstr) |
2344 | return; | |
463ee0b2 LW |
2345 | if (s = SvPV(sstr, len)) |
2346 | sv_catpvn(dstr,s,len); | |
79072805 LW |
2347 | } |
2348 | ||
2349 | void | |
ef50df4b GS |
2350 | sv_catsv_mg(SV *dstr, register SV *sstr) |
2351 | { | |
2352 | sv_catsv(dstr,sstr); | |
2353 | SvSETMAGIC(dstr); | |
2354 | } | |
2355 | ||
2356 | void | |
8ac85365 | 2357 | sv_catpv(register SV *sv, register char *ptr) |
79072805 LW |
2358 | { |
2359 | register STRLEN len; | |
463ee0b2 | 2360 | STRLEN tlen; |
748a9306 | 2361 | char *junk; |
79072805 | 2362 | |
79072805 LW |
2363 | if (!ptr) |
2364 | return; | |
748a9306 | 2365 | junk = SvPV_force(sv, tlen); |
79072805 | 2366 | len = strlen(ptr); |
463ee0b2 | 2367 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
2368 | if (ptr == junk) |
2369 | ptr = SvPVX(sv); | |
463ee0b2 | 2370 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
79072805 | 2371 | SvCUR(sv) += len; |
a0d0e21e | 2372 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2373 | SvTAINT(sv); |
79072805 LW |
2374 | } |
2375 | ||
ef50df4b GS |
2376 | void |
2377 | sv_catpv_mg(register SV *sv, register char *ptr) | |
2378 | { | |
51c1089b | 2379 | sv_catpv(sv,ptr); |
ef50df4b GS |
2380 | SvSETMAGIC(sv); |
2381 | } | |
2382 | ||
79072805 | 2383 | SV * |
8ac85365 | 2384 | newSV(STRLEN len) |
79072805 LW |
2385 | { |
2386 | register SV *sv; | |
2387 | ||
4561caa4 | 2388 | new_SV(sv); |
8990e307 LW |
2389 | SvANY(sv) = 0; |
2390 | SvREFCNT(sv) = 1; | |
2391 | SvFLAGS(sv) = 0; | |
79072805 LW |
2392 | if (len) { |
2393 | sv_upgrade(sv, SVt_PV); | |
2394 | SvGROW(sv, len + 1); | |
2395 | } | |
2396 | return sv; | |
2397 | } | |
2398 | ||
1edc1566 | 2399 | /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */ |
2400 | ||
79072805 | 2401 | void |
8ac85365 | 2402 | sv_magic(register SV *sv, SV *obj, int how, char *name, I32 namlen) |
79072805 LW |
2403 | { |
2404 | MAGIC* mg; | |
2405 | ||
0f15f207 MB |
2406 | if (SvREADONLY(sv)) { |
2407 | dTHR; | |
3280af22 | 2408 | if (PL_curcop != &PL_compiling && !strchr("gBf", how)) |
22c35a8c | 2409 | croak(PL_no_modify); |
0f15f207 | 2410 | } |
4633a7c4 | 2411 | if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 LW |
2412 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
2413 | if (how == 't') | |
565764a8 | 2414 | mg->mg_len |= 1; |
463ee0b2 | 2415 | return; |
748a9306 | 2416 | } |
463ee0b2 LW |
2417 | } |
2418 | else { | |
c6f8c383 | 2419 | (void)SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 2420 | } |
79072805 LW |
2421 | Newz(702,mg, 1, MAGIC); |
2422 | mg->mg_moremagic = SvMAGIC(sv); | |
463ee0b2 | 2423 | |
79072805 | 2424 | SvMAGIC(sv) = mg; |
c277df42 | 2425 | if (!obj || obj == sv || how == '#' || how == 'r') |
8990e307 | 2426 | mg->mg_obj = obj; |
85e6fe83 | 2427 | else { |
11343788 | 2428 | dTHR; |
8990e307 | 2429 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
2430 | mg->mg_flags |= MGf_REFCOUNTED; |
2431 | } | |
79072805 | 2432 | mg->mg_type = how; |
565764a8 | 2433 | mg->mg_len = namlen; |
1edc1566 | 2434 | if (name) |
2435 | if (namlen >= 0) | |
2436 | mg->mg_ptr = savepvn(name, namlen); | |
c6ee37c5 | 2437 | else if (namlen == HEf_SVKEY) |
1edc1566 | 2438 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
2439 | ||
79072805 LW |
2440 | switch (how) { |
2441 | case 0: | |
22c35a8c | 2442 | mg->mg_virtual = &PL_vtbl_sv; |
79072805 | 2443 | break; |
a0d0e21e LW |
2444 | #ifdef OVERLOAD |
2445 | case 'A': | |
22c35a8c | 2446 | mg->mg_virtual = &PL_vtbl_amagic; |
a0d0e21e LW |
2447 | break; |
2448 | case 'a': | |
22c35a8c | 2449 | mg->mg_virtual = &PL_vtbl_amagicelem; |
a0d0e21e LW |
2450 | break; |
2451 | case 'c': | |
2452 | mg->mg_virtual = 0; | |
2453 | break; | |
2454 | #endif /* OVERLOAD */ | |
79072805 | 2455 | case 'B': |
22c35a8c | 2456 | mg->mg_virtual = &PL_vtbl_bm; |
79072805 | 2457 | break; |
6cef1e77 | 2458 | case 'D': |
22c35a8c | 2459 | mg->mg_virtual = &PL_vtbl_regdata; |
6cef1e77 IZ |
2460 | break; |
2461 | case 'd': | |
22c35a8c | 2462 | mg->mg_virtual = &PL_vtbl_regdatum; |
6cef1e77 | 2463 | break; |
79072805 | 2464 | case 'E': |
22c35a8c | 2465 | mg->mg_virtual = &PL_vtbl_env; |
79072805 | 2466 | break; |
55497cff | 2467 | case 'f': |
22c35a8c | 2468 | mg->mg_virtual = &PL_vtbl_fm; |
55497cff | 2469 | break; |
79072805 | 2470 | case 'e': |
22c35a8c | 2471 | mg->mg_virtual = &PL_vtbl_envelem; |
79072805 | 2472 | break; |
93a17b20 | 2473 | case 'g': |
22c35a8c | 2474 | mg->mg_virtual = &PL_vtbl_mglob; |
93a17b20 | 2475 | break; |
463ee0b2 | 2476 | case 'I': |
22c35a8c | 2477 | mg->mg_virtual = &PL_vtbl_isa; |
463ee0b2 LW |
2478 | break; |
2479 | case 'i': | |
22c35a8c | 2480 | mg->mg_virtual = &PL_vtbl_isaelem; |
463ee0b2 | 2481 | break; |
16660edb | 2482 | case 'k': |
22c35a8c | 2483 | mg->mg_virtual = &PL_vtbl_nkeys; |
16660edb | 2484 | break; |
79072805 | 2485 | case 'L': |
a0d0e21e | 2486 | SvRMAGICAL_on(sv); |
93a17b20 LW |
2487 | mg->mg_virtual = 0; |
2488 | break; | |
2489 | case 'l': | |
22c35a8c | 2490 | mg->mg_virtual = &PL_vtbl_dbline; |
79072805 | 2491 | break; |
f93b4edd MB |
2492 | #ifdef USE_THREADS |
2493 | case 'm': | |
22c35a8c | 2494 | mg->mg_virtual = &PL_vtbl_mutex; |
f93b4edd MB |
2495 | break; |
2496 | #endif /* USE_THREADS */ | |
36477c24 | 2497 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 2498 | case 'o': |
22c35a8c | 2499 | mg->mg_virtual = &PL_vtbl_collxfrm; |
bbce6d69 | 2500 | break; |
36477c24 | 2501 | #endif /* USE_LOCALE_COLLATE */ |
463ee0b2 | 2502 | case 'P': |
22c35a8c | 2503 | mg->mg_virtual = &PL_vtbl_pack; |
463ee0b2 LW |
2504 | break; |
2505 | case 'p': | |
a0d0e21e | 2506 | case 'q': |
22c35a8c | 2507 | mg->mg_virtual = &PL_vtbl_packelem; |
463ee0b2 | 2508 | break; |
c277df42 | 2509 | case 'r': |
22c35a8c | 2510 | mg->mg_virtual = &PL_vtbl_regexp; |
c277df42 | 2511 | break; |
79072805 | 2512 | case 'S': |
22c35a8c | 2513 | mg->mg_virtual = &PL_vtbl_sig; |
79072805 LW |
2514 | break; |
2515 | case 's': | |
22c35a8c | 2516 | mg->mg_virtual = &PL_vtbl_sigelem; |
79072805 | 2517 | break; |
463ee0b2 | 2518 | case 't': |
22c35a8c | 2519 | mg->mg_virtual = &PL_vtbl_taint; |
565764a8 | 2520 | mg->mg_len = 1; |
463ee0b2 | 2521 | break; |
79072805 | 2522 | case 'U': |
22c35a8c | 2523 | mg->mg_virtual = &PL_vtbl_uvar; |
79072805 LW |
2524 | break; |
2525 | case 'v': | |
22c35a8c | 2526 | mg->mg_virtual = &PL_vtbl_vec; |
79072805 LW |
2527 | break; |
2528 | case 'x': | |
22c35a8c | 2529 | mg->mg_virtual = &PL_vtbl_substr; |
79072805 | 2530 | break; |
5f05dabc | 2531 | case 'y': |
22c35a8c | 2532 | mg->mg_virtual = &PL_vtbl_defelem; |
5f05dabc | 2533 | break; |
79072805 | 2534 | case '*': |
22c35a8c | 2535 | mg->mg_virtual = &PL_vtbl_glob; |
79072805 LW |
2536 | break; |
2537 | case '#': | |
22c35a8c | 2538 | mg->mg_virtual = &PL_vtbl_arylen; |
79072805 | 2539 | break; |
a0d0e21e | 2540 | case '.': |
22c35a8c | 2541 | mg->mg_virtual = &PL_vtbl_pos; |
a0d0e21e | 2542 | break; |
4633a7c4 LW |
2543 | case '~': /* Reserved for use by extensions not perl internals. */ |
2544 | /* Useful for attaching extension internal data to perl vars. */ | |
2545 | /* Note that multiple extensions may clash if magical scalars */ | |
2546 | /* etc holding private data from one are passed to another. */ | |
2547 | SvRMAGICAL_on(sv); | |
a0d0e21e | 2548 | break; |
79072805 | 2549 | default: |
463ee0b2 LW |
2550 | croak("Don't know how to handle magic of type '%c'", how); |
2551 | } | |
8990e307 LW |
2552 | mg_magical(sv); |
2553 | if (SvGMAGICAL(sv)) | |
2554 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
2555 | } |
2556 | ||
2557 | int | |
8ac85365 | 2558 | sv_unmagic(SV *sv, int type) |
463ee0b2 LW |
2559 | { |
2560 | MAGIC* mg; | |
2561 | MAGIC** mgp; | |
91bba347 | 2562 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
2563 | return 0; |
2564 | mgp = &SvMAGIC(sv); | |
2565 | for (mg = *mgp; mg; mg = *mgp) { | |
2566 | if (mg->mg_type == type) { | |
2567 | MGVTBL* vtbl = mg->mg_virtual; | |
2568 | *mgp = mg->mg_moremagic; | |
76e3520e GS |
2569 | if (vtbl && (vtbl->svt_free != NULL)) |
2570 | (VTBL->svt_free)(sv, mg); | |
463ee0b2 | 2571 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 2572 | if (mg->mg_len >= 0) |
1edc1566 | 2573 | Safefree(mg->mg_ptr); |
565764a8 | 2574 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 2575 | SvREFCNT_dec((SV*)mg->mg_ptr); |
a0d0e21e LW |
2576 | if (mg->mg_flags & MGf_REFCOUNTED) |
2577 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
2578 | Safefree(mg); |
2579 | } | |
2580 | else | |
2581 | mgp = &mg->mg_moremagic; | |
79072805 | 2582 | } |
91bba347 | 2583 | if (!SvMAGIC(sv)) { |
463ee0b2 | 2584 | SvMAGICAL_off(sv); |
8990e307 | 2585 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
2586 | } |
2587 | ||
2588 | return 0; | |
79072805 LW |
2589 | } |
2590 | ||
2591 | void | |
8ac85365 | 2592 | sv_insert(SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
2593 | { |
2594 | register char *big; | |
2595 | register char *mid; | |
2596 | register char *midend; | |
2597 | register char *bigend; | |
2598 | register I32 i; | |
6ff81951 GS |
2599 | STRLEN curlen; |
2600 | ||
79072805 | 2601 | |
8990e307 LW |
2602 | if (!bigstr) |
2603 | croak("Can't modify non-existent substring"); | |
6ff81951 GS |
2604 | SvPV_force(bigstr, curlen); |
2605 | if (offset + len > curlen) { | |
2606 | SvGROW(bigstr, offset+len+1); | |
2607 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
2608 | SvCUR_set(bigstr, offset+len); | |
2609 | } | |
79072805 LW |
2610 | |
2611 | i = littlelen - len; | |
2612 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 2613 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
2614 | mid = big + offset + len; |
2615 | midend = bigend = big + SvCUR(bigstr); | |
2616 | bigend += i; | |
2617 | *bigend = '\0'; | |
2618 | while (midend > mid) /* shove everything down */ | |
2619 | *--bigend = *--midend; | |
2620 | Move(little,big+offset,littlelen,char); | |
2621 | SvCUR(bigstr) += i; | |
2622 | SvSETMAGIC(bigstr); | |
2623 | return; | |
2624 | } | |
2625 | else if (i == 0) { | |
463ee0b2 | 2626 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
2627 | SvSETMAGIC(bigstr); |
2628 | return; | |
2629 | } | |
2630 | ||
463ee0b2 | 2631 | big = SvPVX(bigstr); |
79072805 LW |
2632 | mid = big + offset; |
2633 | midend = mid + len; | |
2634 | bigend = big + SvCUR(bigstr); | |
2635 | ||
2636 | if (midend > bigend) | |
463ee0b2 | 2637 | croak("panic: sv_insert"); |
79072805 LW |
2638 | |
2639 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
2640 | if (littlelen) { | |
2641 | Move(little, mid, littlelen,char); | |
2642 | mid += littlelen; | |
2643 | } | |
2644 | i = bigend - midend; | |
2645 | if (i > 0) { | |
2646 | Move(midend, mid, i,char); | |
2647 | mid += i; | |
2648 | } | |
2649 | *mid = '\0'; | |
2650 | SvCUR_set(bigstr, mid - big); | |
2651 | } | |
2652 | /*SUPPRESS 560*/ | |
2653 | else if (i = mid - big) { /* faster from front */ | |
2654 | midend -= littlelen; | |
2655 | mid = midend; | |
2656 | sv_chop(bigstr,midend-i); | |
2657 | big += i; | |
2658 | while (i--) | |
2659 | *--midend = *--big; | |
2660 | if (littlelen) | |
2661 | Move(little, mid, littlelen,char); | |
2662 | } | |
2663 | else if (littlelen) { | |
2664 | midend -= littlelen; | |
2665 | sv_chop(bigstr,midend); | |
2666 | Move(little,midend,littlelen,char); | |
2667 | } | |
2668 | else { | |
2669 | sv_chop(bigstr,midend); | |
2670 | } | |
2671 | SvSETMAGIC(bigstr); | |
2672 | } | |
2673 | ||
2674 | /* make sv point to what nstr did */ | |
2675 | ||
2676 | void | |
8ac85365 | 2677 | sv_replace(register SV *sv, register SV *nsv) |
79072805 LW |
2678 | { |
2679 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 2680 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
2681 | if (SvREFCNT(nsv) != 1) |
2682 | warn("Reference miscount in sv_replace()"); | |
93a17b20 | 2683 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
2684 | if (SvMAGICAL(nsv)) |
2685 | mg_free(nsv); | |
2686 | else | |
2687 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 2688 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 2689 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
2690 | SvMAGICAL_off(sv); |
2691 | SvMAGIC(sv) = 0; | |
2692 | } | |
79072805 LW |
2693 | SvREFCNT(sv) = 0; |
2694 | sv_clear(sv); | |
477f5d66 | 2695 | assert(!SvREFCNT(sv)); |
79072805 LW |
2696 | StructCopy(nsv,sv,SV); |
2697 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 2698 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 2699 | del_SV(nsv); |
79072805 LW |
2700 | } |
2701 | ||
2702 | void | |
8ac85365 | 2703 | sv_clear(register SV *sv) |
79072805 | 2704 | { |
ec12f114 | 2705 | HV* stash; |
79072805 LW |
2706 | assert(sv); |
2707 | assert(SvREFCNT(sv) == 0); | |
2708 | ||
ed6116ce | 2709 | if (SvOBJECT(sv)) { |
e858de61 | 2710 | dTHR; |
3280af22 | 2711 | if (PL_defstash) { /* Still have a symbol table? */ |
4e35701f | 2712 | djSP; |
8ebc5c01 | 2713 | GV* destructor; |
837485b6 | 2714 | SV tmpref; |
a0d0e21e | 2715 | |
837485b6 GS |
2716 | Zero(&tmpref, 1, SV); |
2717 | sv_upgrade(&tmpref, SVt_RV); | |
2718 | SvROK_on(&tmpref); | |
2719 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
2720 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 2721 | |
4e8e7886 GS |
2722 | do { |
2723 | stash = SvSTASH(sv); | |
2724 | destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); | |
2725 | if (destructor) { | |
2726 | ENTER; | |
e788e7d3 | 2727 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 2728 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
2729 | EXTEND(SP, 2); |
2730 | PUSHMARK(SP); | |
837485b6 | 2731 | PUSHs(&tmpref); |
4e8e7886 GS |
2732 | PUTBACK; |
2733 | perl_call_sv((SV*)GvCV(destructor), | |
2734 | G_DISCARD|G_EVAL|G_KEEPERR); | |
2735 | SvREFCNT(sv)--; | |
d3acc0f7 | 2736 | POPSTACK; |
3095d977 | 2737 | SPAGAIN; |
4e8e7886 GS |
2738 | LEAVE; |
2739 | } | |
2740 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 2741 | |
837485b6 | 2742 | del_XRV(SvANY(&tmpref)); |
a0d0e21e | 2743 | } |
4e8e7886 | 2744 | |
a0d0e21e | 2745 | if (SvOBJECT(sv)) { |
4e8e7886 | 2746 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
2747 | SvOBJECT_off(sv); /* Curse the object. */ |
2748 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 2749 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 2750 | } |
1edc1566 | 2751 | if (SvREFCNT(sv)) { |
3280af22 | 2752 | if (PL_in_clean_objs) |
477f5d66 CS |
2753 | croak("DESTROY created new reference to dead object"); |
2754 | /* DESTROY gave object new lease on life */ | |
2755 | return; | |
1edc1566 | 2756 | } |
463ee0b2 | 2757 | } |
c07a80fd | 2758 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
a0d0e21e | 2759 | mg_free(sv); |
ec12f114 | 2760 | stash = NULL; |
79072805 | 2761 | switch (SvTYPE(sv)) { |
8990e307 | 2762 | case SVt_PVIO: |
df0bd2f4 GS |
2763 | if (IoIFP(sv) && |
2764 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 2765 | IoIFP(sv) != PerlIO_stdout() && |
2766 | IoIFP(sv) != PerlIO_stderr()) | |
2767 | io_close((IO*)sv); | |
8990e307 LW |
2768 | Safefree(IoTOP_NAME(sv)); |
2769 | Safefree(IoFMT_NAME(sv)); | |
2770 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 2771 | /* FALL THROUGH */ |
79072805 | 2772 | case SVt_PVBM: |
a0d0e21e | 2773 | goto freescalar; |
79072805 | 2774 | case SVt_PVCV: |
748a9306 | 2775 | case SVt_PVFM: |
85e6fe83 | 2776 | cv_undef((CV*)sv); |
a0d0e21e | 2777 | goto freescalar; |
79072805 | 2778 | case SVt_PVHV: |
85e6fe83 | 2779 | hv_undef((HV*)sv); |
a0d0e21e | 2780 | break; |
79072805 | 2781 | case SVt_PVAV: |
85e6fe83 | 2782 | av_undef((AV*)sv); |
a0d0e21e | 2783 | break; |
02270b4e GS |
2784 | case SVt_PVLV: |
2785 | SvREFCNT_dec(LvTARG(sv)); | |
2786 | goto freescalar; | |
a0d0e21e | 2787 | case SVt_PVGV: |
1edc1566 | 2788 | gp_free((GV*)sv); |
a0d0e21e | 2789 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
2790 | /* cannot decrease stash refcount yet, as we might recursively delete |
2791 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
2792 | of stash until current sv is completely gone. | |
2793 | -- JohnPC, 27 Mar 1998 */ | |
2794 | stash = GvSTASH(sv); | |
a0d0e21e | 2795 | /* FALL THROUGH */ |
79072805 | 2796 | case SVt_PVMG: |
79072805 LW |
2797 | case SVt_PVNV: |
2798 | case SVt_PVIV: | |
a0d0e21e LW |
2799 | freescalar: |
2800 | (void)SvOOK_off(sv); | |
79072805 LW |
2801 | /* FALL THROUGH */ |
2802 | case SVt_PV: | |
a0d0e21e | 2803 | case SVt_RV: |
8990e307 LW |
2804 | if (SvROK(sv)) |
2805 | SvREFCNT_dec(SvRV(sv)); | |
1edc1566 | 2806 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 2807 | Safefree(SvPVX(sv)); |
79072805 | 2808 | break; |
a0d0e21e | 2809 | /* |
79072805 | 2810 | case SVt_NV: |
79072805 | 2811 | case SVt_IV: |
79072805 LW |
2812 | case SVt_NULL: |
2813 | break; | |
a0d0e21e | 2814 | */ |
79072805 LW |
2815 | } |
2816 | ||
2817 | switch (SvTYPE(sv)) { | |
2818 | case SVt_NULL: | |
2819 | break; | |
79072805 LW |
2820 | case SVt_IV: |
2821 | del_XIV(SvANY(sv)); | |
2822 | break; | |
2823 | case SVt_NV: | |
2824 | del_XNV(SvANY(sv)); | |
2825 | break; | |
ed6116ce LW |
2826 | case SVt_RV: |
2827 | del_XRV(SvANY(sv)); | |
2828 | break; | |
79072805 LW |
2829 | case SVt_PV: |
2830 | del_XPV(SvANY(sv)); | |
2831 | break; | |
2832 | case SVt_PVIV: | |
2833 | del_XPVIV(SvANY(sv)); | |
2834 | break; | |
2835 | case SVt_PVNV: | |
2836 | del_XPVNV(SvANY(sv)); | |
2837 | break; | |
2838 | case SVt_PVMG: | |
2839 | del_XPVMG(SvANY(sv)); | |
2840 | break; | |
2841 | case SVt_PVLV: | |
2842 | del_XPVLV(SvANY(sv)); | |
2843 | break; | |
2844 | case SVt_PVAV: | |
2845 | del_XPVAV(SvANY(sv)); | |
2846 | break; | |
2847 | case SVt_PVHV: | |
2848 | del_XPVHV(SvANY(sv)); | |
2849 | break; | |
2850 | case SVt_PVCV: | |
2851 | del_XPVCV(SvANY(sv)); | |
2852 | break; | |
2853 | case SVt_PVGV: | |
2854 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
2855 | /* code duplication for increased performance. */ |
2856 | SvFLAGS(sv) &= SVf_BREAK; | |
2857 | SvFLAGS(sv) |= SVTYPEMASK; | |
2858 | /* decrease refcount of the stash that owns this GV, if any */ | |
2859 | if (stash) | |
2860 | SvREFCNT_dec(stash); | |
2861 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
2862 | case SVt_PVBM: |
2863 | del_XPVBM(SvANY(sv)); | |
2864 | break; | |
2865 | case SVt_PVFM: | |
2866 | del_XPVFM(SvANY(sv)); | |
2867 | break; | |
8990e307 LW |
2868 | case SVt_PVIO: |
2869 | del_XPVIO(SvANY(sv)); | |
2870 | break; | |
79072805 | 2871 | } |
a0d0e21e | 2872 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 2873 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
2874 | } |
2875 | ||
2876 | SV * | |
8ac85365 | 2877 | sv_newref(SV *sv) |
79072805 | 2878 | { |
463ee0b2 | 2879 | if (sv) |
dce16143 | 2880 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
2881 | return sv; |
2882 | } | |
2883 | ||
2884 | void | |
8ac85365 | 2885 | sv_free(SV *sv) |
79072805 | 2886 | { |
dce16143 MB |
2887 | int refcount_is_zero; |
2888 | ||
79072805 LW |
2889 | if (!sv) |
2890 | return; | |
a0d0e21e LW |
2891 | if (SvREFCNT(sv) == 0) { |
2892 | if (SvFLAGS(sv) & SVf_BREAK) | |
2893 | return; | |
3280af22 | 2894 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 2895 | return; |
d689ffdd JP |
2896 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
2897 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
2898 | SvREFCNT(sv) = (~(U32)0)/2; | |
2899 | return; | |
2900 | } | |
79072805 LW |
2901 | warn("Attempt to free unreferenced scalar"); |
2902 | return; | |
2903 | } | |
dce16143 MB |
2904 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
2905 | if (!refcount_is_zero) | |
8990e307 | 2906 | return; |
463ee0b2 LW |
2907 | #ifdef DEBUGGING |
2908 | if (SvTEMP(sv)) { | |
7f20e9dd | 2909 | warn("Attempt to free temp prematurely: SV 0x%lx", (unsigned long)sv); |
79072805 | 2910 | return; |
79072805 | 2911 | } |
463ee0b2 | 2912 | #endif |
d689ffdd JP |
2913 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
2914 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
2915 | SvREFCNT(sv) = (~(U32)0)/2; | |
2916 | return; | |
2917 | } | |
79072805 | 2918 | sv_clear(sv); |
477f5d66 CS |
2919 | if (! SvREFCNT(sv)) |
2920 | del_SV(sv); | |
79072805 LW |
2921 | } |
2922 | ||
2923 | STRLEN | |
8ac85365 | 2924 | sv_len(register SV *sv) |
79072805 | 2925 | { |
748a9306 | 2926 | char *junk; |
463ee0b2 | 2927 | STRLEN len; |
79072805 LW |
2928 | |
2929 | if (!sv) | |
2930 | return 0; | |
2931 | ||
8990e307 | 2932 | if (SvGMAGICAL(sv)) |
565764a8 | 2933 | len = mg_length(sv); |
8990e307 | 2934 | else |
748a9306 | 2935 | junk = SvPV(sv, len); |
463ee0b2 | 2936 | return len; |
79072805 LW |
2937 | } |
2938 | ||
a0ed51b3 LW |
2939 | STRLEN |
2940 | sv_len_utf8(register SV *sv) | |
2941 | { | |
dfe13c55 GS |
2942 | U8 *s; |
2943 | U8 *send; | |
a0ed51b3 LW |
2944 | STRLEN len; |
2945 | ||
2946 | if (!sv) | |
2947 | return 0; | |
2948 | ||
2949 | #ifdef NOTYET | |
2950 | if (SvGMAGICAL(sv)) | |
2951 | len = mg_length(sv); | |
2952 | else | |
2953 | #endif | |
dfe13c55 | 2954 | s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
2955 | send = s + len; |
2956 | len = 0; | |
2957 | while (s < send) { | |
2958 | s += UTF8SKIP(s); | |
2959 | len++; | |
2960 | } | |
2961 | return len; | |
2962 | } | |
2963 | ||
2964 | void | |
2965 | sv_pos_u2b(register SV *sv, I32* offsetp, I32* lenp) | |
2966 | { | |
dfe13c55 GS |
2967 | U8 *start; |
2968 | U8 *s; | |
2969 | U8 *send; | |
a0ed51b3 LW |
2970 | I32 uoffset = *offsetp; |
2971 | STRLEN len; | |
2972 | ||
2973 | if (!sv) | |
2974 | return; | |
2975 | ||
dfe13c55 | 2976 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
2977 | send = s + len; |
2978 | while (s < send && uoffset--) | |
2979 | s += UTF8SKIP(s); | |
bb40f870 GA |
2980 | if (s >= send) |
2981 | s = send; | |
a0ed51b3 LW |
2982 | *offsetp = s - start; |
2983 | if (lenp) { | |
2984 | I32 ulen = *lenp; | |
2985 | start = s; | |
2986 | while (s < send && ulen--) | |
2987 | s += UTF8SKIP(s); | |
bb40f870 GA |
2988 | if (s >= send) |
2989 | s = send; | |
a0ed51b3 LW |
2990 | *lenp = s - start; |
2991 | } | |
2992 | return; | |
2993 | } | |
2994 | ||
2995 | void | |
2996 | sv_pos_b2u(register SV *sv, I32* offsetp) | |
2997 | { | |
dfe13c55 GS |
2998 | U8 *s; |
2999 | U8 *send; | |
a0ed51b3 LW |
3000 | STRLEN len; |
3001 | ||
3002 | if (!sv) | |
3003 | return; | |
3004 | ||
dfe13c55 | 3005 | s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
3006 | if (len < *offsetp) |
3007 | croak("panic: bad byte offset"); | |
3008 | send = s + *offsetp; | |
3009 | len = 0; | |
3010 | while (s < send) { | |
3011 | s += UTF8SKIP(s); | |
3012 | ++len; | |
3013 | } | |
3014 | if (s != send) { | |
3015 | warn("Malformed UTF-8 character"); | |
3016 | --len; | |
3017 | } | |
3018 | *offsetp = len; | |
3019 | return; | |
3020 | } | |
3021 | ||
79072805 | 3022 | I32 |
8ac85365 | 3023 | sv_eq(register SV *str1, register SV *str2) |
79072805 LW |
3024 | { |
3025 | char *pv1; | |
463ee0b2 | 3026 | STRLEN cur1; |
79072805 | 3027 | char *pv2; |
463ee0b2 | 3028 | STRLEN cur2; |
79072805 LW |
3029 | |
3030 | if (!str1) { | |
3031 | pv1 = ""; | |
3032 | cur1 = 0; | |
3033 | } | |
463ee0b2 LW |
3034 | else |
3035 | pv1 = SvPV(str1, cur1); | |
79072805 LW |
3036 | |
3037 | if (!str2) | |
3038 | return !cur1; | |
463ee0b2 LW |
3039 | else |
3040 | pv2 = SvPV(str2, cur2); | |
79072805 LW |
3041 | |
3042 | if (cur1 != cur2) | |
3043 | return 0; | |
3044 | ||
36477c24 | 3045 | return memEQ(pv1, pv2, cur1); |
79072805 LW |
3046 | } |
3047 | ||
3048 | I32 | |
8ac85365 | 3049 | sv_cmp(register SV *str1, register SV *str2) |
79072805 | 3050 | { |
bbce6d69 | 3051 | STRLEN cur1 = 0; |
8ac85365 | 3052 | char *pv1 = str1 ? SvPV(str1, cur1) : (char *) NULL; |
bbce6d69 | 3053 | STRLEN cur2 = 0; |
8ac85365 | 3054 | char *pv2 = str2 ? SvPV(str2, cur2) : (char *) NULL; |
79072805 | 3055 | I32 retval; |
79072805 | 3056 | |
bbce6d69 | 3057 | if (!cur1) |
3058 | return cur2 ? -1 : 0; | |
16660edb | 3059 | |
bbce6d69 | 3060 | if (!cur2) |
3061 | return 1; | |
79072805 | 3062 | |
bbce6d69 | 3063 | retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); |
16660edb | 3064 | |
bbce6d69 | 3065 | if (retval) |
3066 | return retval < 0 ? -1 : 1; | |
16660edb | 3067 | |
bbce6d69 | 3068 | if (cur1 == cur2) |
3069 | return 0; | |
3070 | else | |
3071 | return cur1 < cur2 ? -1 : 1; | |
3072 | } | |
16660edb | 3073 | |
bbce6d69 | 3074 | I32 |
8ac85365 | 3075 | sv_cmp_locale(register SV *sv1, register SV *sv2) |
bbce6d69 | 3076 | { |
36477c24 | 3077 | #ifdef USE_LOCALE_COLLATE |
16660edb | 3078 | |
bbce6d69 | 3079 | char *pv1, *pv2; |
3080 | STRLEN len1, len2; | |
3081 | I32 retval; | |
16660edb | 3082 | |
3280af22 | 3083 | if (PL_collation_standard) |
bbce6d69 | 3084 | goto raw_compare; |
16660edb | 3085 | |
bbce6d69 | 3086 | len1 = 0; |
8ac85365 | 3087 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 3088 | len2 = 0; |
8ac85365 | 3089 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 3090 | |
bbce6d69 | 3091 | if (!pv1 || !len1) { |
3092 | if (pv2 && len2) | |
3093 | return -1; | |
3094 | else | |
3095 | goto raw_compare; | |
3096 | } | |
3097 | else { | |
3098 | if (!pv2 || !len2) | |
3099 | return 1; | |
3100 | } | |
16660edb | 3101 | |
bbce6d69 | 3102 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 3103 | |
bbce6d69 | 3104 | if (retval) |
16660edb | 3105 | return retval < 0 ? -1 : 1; |
3106 | ||
bbce6d69 | 3107 | /* |
3108 | * When the result of collation is equality, that doesn't mean | |
3109 | * that there are no differences -- some locales exclude some | |
3110 | * characters from consideration. So to avoid false equalities, | |
3111 | * we use the raw string as a tiebreaker. | |
3112 | */ | |
16660edb | 3113 | |
bbce6d69 | 3114 | raw_compare: |
3115 | /* FALL THROUGH */ | |
16660edb | 3116 | |
36477c24 | 3117 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 3118 | |
bbce6d69 | 3119 | return sv_cmp(sv1, sv2); |
3120 | } | |
79072805 | 3121 | |
36477c24 | 3122 | #ifdef USE_LOCALE_COLLATE |
7a4c00b4 | 3123 | /* |
3124 | * Any scalar variable may carry an 'o' magic that contains the | |
3125 | * scalar data of the variable transformed to such a format that | |
3126 | * a normal memory comparison can be used to compare the data | |
3127 | * according to the locale settings. | |
3128 | */ | |
bbce6d69 | 3129 | char * |
8ac85365 | 3130 | sv_collxfrm(SV *sv, STRLEN *nxp) |
bbce6d69 | 3131 | { |
7a4c00b4 | 3132 | MAGIC *mg; |
16660edb | 3133 | |
8ac85365 | 3134 | mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL; |
3280af22 | 3135 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 3136 | char *s, *xf; |
3137 | STRLEN len, xlen; | |
3138 | ||
7a4c00b4 | 3139 | if (mg) |
3140 | Safefree(mg->mg_ptr); | |
bbce6d69 | 3141 | s = SvPV(sv, len); |
3142 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 3143 | if (SvREADONLY(sv)) { |
3144 | SAVEFREEPV(xf); | |
3145 | *nxp = xlen; | |
3280af22 | 3146 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 3147 | } |
7a4c00b4 | 3148 | if (! mg) { |
3149 | sv_magic(sv, 0, 'o', 0, 0); | |
3150 | mg = mg_find(sv, 'o'); | |
3151 | assert(mg); | |
bbce6d69 | 3152 | } |
7a4c00b4 | 3153 | mg->mg_ptr = xf; |
565764a8 | 3154 | mg->mg_len = xlen; |
7a4c00b4 | 3155 | } |
3156 | else { | |
ff0cee69 | 3157 | if (mg) { |
3158 | mg->mg_ptr = NULL; | |
565764a8 | 3159 | mg->mg_len = -1; |
ff0cee69 | 3160 | } |
bbce6d69 | 3161 | } |
3162 | } | |
7a4c00b4 | 3163 | if (mg && mg->mg_ptr) { |
565764a8 | 3164 | *nxp = mg->mg_len; |
3280af22 | 3165 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 3166 | } |
3167 | else { | |
3168 | *nxp = 0; | |
3169 | return NULL; | |
16660edb | 3170 | } |
79072805 LW |
3171 | } |
3172 | ||
36477c24 | 3173 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 3174 | |
79072805 | 3175 | char * |
76e3520e | 3176 | sv_gets(register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 3177 | { |
aeea060c | 3178 | dTHR; |
c07a80fd | 3179 | char *rsptr; |
3180 | STRLEN rslen; | |
3181 | register STDCHAR rslast; | |
3182 | register STDCHAR *bp; | |
3183 | register I32 cnt; | |
3184 | I32 i; | |
3185 | ||
2213622d | 3186 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 3187 | (void)SvUPGRADE(sv, SVt_PV); |
ff68c719 | 3188 | SvSCREAM_off(sv); |
c07a80fd | 3189 | |
3280af22 | 3190 | if (RsSNARF(PL_rs)) { |
c07a80fd | 3191 | rsptr = NULL; |
3192 | rslen = 0; | |
3193 | } | |
3280af22 | 3194 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
3195 | I32 recsize, bytesread; |
3196 | char *buffer; | |
3197 | ||
3198 | /* Grab the size of the record we're getting */ | |
3280af22 | 3199 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 3200 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 3201 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
3202 | /* Go yank in */ |
3203 | #ifdef VMS | |
3204 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
3205 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
3206 | /* doing, but we've got no other real choice */ | |
3207 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
3208 | #else | |
3209 | bytesread = PerlIO_read(fp, buffer, recsize); | |
3210 | #endif | |
3211 | SvCUR_set(sv, bytesread); | |
e670df4e | 3212 | buffer[bytesread] = '\0'; |
5b2b9c68 HM |
3213 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
3214 | } | |
3280af22 | 3215 | else if (RsPARA(PL_rs)) { |
c07a80fd | 3216 | rsptr = "\n\n"; |
3217 | rslen = 2; | |
3218 | } | |
3219 | else | |
3280af22 | 3220 | rsptr = SvPV(PL_rs, rslen); |
c07a80fd | 3221 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
3222 | ||
3280af22 | 3223 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
79072805 | 3224 | do { /* to make sure file boundaries work right */ |
760ac839 | 3225 | if (PerlIO_eof(fp)) |
a0d0e21e | 3226 | return 0; |
760ac839 | 3227 | i = PerlIO_getc(fp); |
79072805 | 3228 | if (i != '\n') { |
a0d0e21e LW |
3229 | if (i == -1) |
3230 | return 0; | |
760ac839 | 3231 | PerlIO_ungetc(fp,i); |
79072805 LW |
3232 | break; |
3233 | } | |
3234 | } while (i != EOF); | |
3235 | } | |
c07a80fd | 3236 | |
760ac839 LW |
3237 | /* See if we know enough about I/O mechanism to cheat it ! */ |
3238 | ||
3239 | /* This used to be #ifdef test - it is made run-time test for ease | |
3240 | of abstracting out stdio interface. One call should be cheap | |
3241 | enough here - and may even be a macro allowing compile | |
3242 | time optimization. | |
3243 | */ | |
3244 | ||
3245 | if (PerlIO_fast_gets(fp)) { | |
3246 | ||
3247 | /* | |
3248 | * We're going to steal some values from the stdio struct | |
3249 | * and put EVERYTHING in the innermost loop into registers. | |
3250 | */ | |
3251 | register STDCHAR *ptr; | |
3252 | STRLEN bpx; | |
3253 | I32 shortbuffered; | |
3254 | ||
16660edb | 3255 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
3256 | /* An ungetc()d char is handled separately from the regular | |
3257 | * buffer, so we getc() it back out and stuff it in the buffer. | |
3258 | */ | |
3259 | i = PerlIO_getc(fp); | |
3260 | if (i == EOF) return 0; | |
3261 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
3262 | (*fp)->_cnt++; | |
3263 | #endif | |
c07a80fd | 3264 | |
c2960299 | 3265 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 3266 | |
760ac839 | 3267 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 3268 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
3269 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
3270 | if (cnt > 80 && SvLEN(sv) > append) { | |
3271 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
3272 | cnt -= shortbuffered; | |
3273 | } | |
3274 | else { | |
3275 | shortbuffered = 0; | |
bbce6d69 | 3276 | /* remember that cnt can be negative */ |
3277 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
3278 | } |
3279 | } | |
3280 | else | |
3281 | shortbuffered = 0; | |
c07a80fd | 3282 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
760ac839 | 3283 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 3284 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3285 | "Screamer: entering, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
16660edb | 3286 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3287 | "Screamer: entering: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3288 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3289 | (long)(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); | |
79072805 LW |
3290 | for (;;) { |
3291 | screamer: | |
93a17b20 | 3292 | if (cnt > 0) { |
c07a80fd | 3293 | if (rslen) { |
760ac839 LW |
3294 | while (cnt > 0) { /* this | eat */ |
3295 | cnt--; | |
c07a80fd | 3296 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
3297 | goto thats_all_folks; /* screams | sed :-) */ | |
3298 | } | |
3299 | } | |
3300 | else { | |
36477c24 | 3301 | Copy(ptr, bp, cnt, char); /* this | eat */ |
c07a80fd | 3302 | bp += cnt; /* screams | dust */ |
3303 | ptr += cnt; /* louder | sed :-) */ | |
a5f75d66 | 3304 | cnt = 0; |
93a17b20 | 3305 | } |
79072805 LW |
3306 | } |
3307 | ||
748a9306 | 3308 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
3309 | cnt = shortbuffered; |
3310 | shortbuffered = 0; | |
c07a80fd | 3311 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
3312 | SvCUR_set(sv, bpx); |
3313 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 3314 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
3315 | continue; |
3316 | } | |
3317 | ||
16660edb | 3318 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3319 | "Screamer: going to getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
d1bf51dd | 3320 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ |
16660edb | 3321 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3322 | "Screamer: pre: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3323 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3324 | (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
16660edb | 3325 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 3326 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
3327 | another abstraction. */ | |
760ac839 | 3328 | i = PerlIO_getc(fp); /* get more characters */ |
16660edb | 3329 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3330 | "Screamer: post: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3331 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3332 | (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
760ac839 LW |
3333 | cnt = PerlIO_get_cnt(fp); |
3334 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 3335 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3336 | "Screamer: after getc, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
79072805 | 3337 | |
748a9306 LW |
3338 | if (i == EOF) /* all done for ever? */ |
3339 | goto thats_really_all_folks; | |
3340 | ||
c07a80fd | 3341 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
3342 | SvCUR_set(sv, bpx); |
3343 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 3344 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
3345 | ||
760ac839 | 3346 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 3347 | |
c07a80fd | 3348 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 3349 | goto thats_all_folks; |
79072805 LW |
3350 | } |
3351 | ||
3352 | thats_all_folks: | |
c07a80fd | 3353 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 3354 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 3355 | goto screamer; /* go back to the fray */ |
79072805 LW |
3356 | thats_really_all_folks: |
3357 | if (shortbuffered) | |
3358 | cnt += shortbuffered; | |
16660edb | 3359 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3360 | "Screamer: quitting, ptr=%ld, cnt=%ld\n",(long)ptr,(long)cnt)); |
d1bf51dd | 3361 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 3362 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
68dc0745 | 3363 | "Screamer: end: FILE * thinks ptr=%ld, cnt=%ld, base=%ld\n", |
3364 | (long)PerlIO_get_ptr(fp), (long)PerlIO_get_cnt(fp), | |
3365 | (long)(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
79072805 | 3366 | *bp = '\0'; |
760ac839 | 3367 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 3368 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 3369 | "Screamer: done, len=%ld, string=|%.*s|\n", |
3370 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
3371 | } |
3372 | else | |
79072805 | 3373 | { |
760ac839 | 3374 | /*The big, slow, and stupid way */ |
c07a80fd | 3375 | STDCHAR buf[8192]; |
79072805 | 3376 | |
760ac839 | 3377 | screamer2: |
c07a80fd | 3378 | if (rslen) { |
760ac839 LW |
3379 | register STDCHAR *bpe = buf + sizeof(buf); |
3380 | bp = buf; | |
3381 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
3382 | ; /* keep reading */ | |
3383 | cnt = bp - buf; | |
c07a80fd | 3384 | } |
3385 | else { | |
760ac839 | 3386 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 3387 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
3388 | * both args of ?: operator, causing EOF to change into 255 | |
3389 | */ | |
3390 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 3391 | } |
79072805 LW |
3392 | |
3393 | if (append) | |
760ac839 | 3394 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 3395 | else |
760ac839 | 3396 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 3397 | |
3398 | if (i != EOF && /* joy */ | |
3399 | (!rslen || | |
3400 | SvCUR(sv) < rslen || | |
36477c24 | 3401 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
3402 | { |
3403 | append = -1; | |
63e4d877 CS |
3404 | /* |
3405 | * If we're reading from a TTY and we get a short read, | |
3406 | * indicating that the user hit his EOF character, we need | |
3407 | * to notice it now, because if we try to read from the TTY | |
3408 | * again, the EOF condition will disappear. | |
3409 | * | |
3410 | * The comparison of cnt to sizeof(buf) is an optimization | |
3411 | * that prevents unnecessary calls to feof(). | |
3412 | * | |
3413 | * - jik 9/25/96 | |
3414 | */ | |
3415 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
3416 | goto screamer2; | |
79072805 LW |
3417 | } |
3418 | } | |
3419 | ||
3280af22 | 3420 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
c07a80fd | 3421 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 3422 | i = PerlIO_getc(fp); |
79072805 | 3423 | if (i != '\n') { |
760ac839 | 3424 | PerlIO_ungetc(fp,i); |
79072805 LW |
3425 | break; |
3426 | } | |
3427 | } | |
3428 | } | |
c07a80fd | 3429 | |
a868473f NIS |
3430 | #ifdef WIN32 |
3431 | win32_strip_return(sv); | |
3432 | #endif | |
3433 | ||
c07a80fd | 3434 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
3435 | } |
3436 | ||
760ac839 | 3437 | |
79072805 | 3438 | void |
8ac85365 | 3439 | sv_inc(register SV *sv) |
79072805 LW |
3440 | { |
3441 | register char *d; | |
463ee0b2 | 3442 | int flags; |
79072805 LW |
3443 | |
3444 | if (!sv) | |
3445 | return; | |
b23a5f78 GB |
3446 | if (SvGMAGICAL(sv)) |
3447 | mg_get(sv); | |
ed6116ce | 3448 | if (SvTHINKFIRST(sv)) { |
0f15f207 MB |
3449 | if (SvREADONLY(sv)) { |
3450 | dTHR; | |
3280af22 | 3451 | if (PL_curcop != &PL_compiling) |
22c35a8c | 3452 | croak(PL_no_modify); |
0f15f207 | 3453 | } |
a0d0e21e | 3454 | if (SvROK(sv)) { |
b5be31e9 | 3455 | IV i; |
a0d0e21e | 3456 | #ifdef OVERLOAD |
b5be31e9 | 3457 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return; |
a0d0e21e | 3458 | #endif /* OVERLOAD */ |
b5be31e9 SM |
3459 | i = (IV)SvRV(sv); |
3460 | sv_unref(sv); | |
3461 | sv_setiv(sv, i); | |
a0d0e21e | 3462 | } |
ed6116ce | 3463 | } |
8990e307 | 3464 | flags = SvFLAGS(sv); |
8990e307 | 3465 | if (flags & SVp_NOK) { |
a0d0e21e | 3466 | (void)SvNOK_only(sv); |
55497cff | 3467 | SvNVX(sv) += 1.0; |
3468 | return; | |
3469 | } | |
3470 | if (flags & SVp_IOK) { | |
3471 | if (SvIVX(sv) == IV_MAX) | |
3472 | sv_setnv(sv, (double)IV_MAX + 1.0); | |
3473 | else { | |
3474 | (void)SvIOK_only(sv); | |
3475 | ++SvIVX(sv); | |
3476 | } | |
79072805 LW |
3477 | return; |
3478 | } | |
8990e307 | 3479 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
4633a7c4 LW |
3480 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
3481 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 3482 | SvNVX(sv) = 1.0; |
a0d0e21e | 3483 | (void)SvNOK_only(sv); |
79072805 LW |
3484 | return; |
3485 | } | |
463ee0b2 | 3486 | d = SvPVX(sv); |
79072805 LW |
3487 | while (isALPHA(*d)) d++; |
3488 | while (isDIGIT(*d)) d++; | |
3489 | if (*d) { | |
36477c24 | 3490 | SET_NUMERIC_STANDARD(); |
bbce6d69 | 3491 | sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */ |
79072805 LW |
3492 | return; |
3493 | } | |
3494 | d--; | |
463ee0b2 | 3495 | while (d >= SvPVX(sv)) { |
79072805 LW |
3496 | if (isDIGIT(*d)) { |
3497 | if (++*d <= '9') | |
3498 | return; | |
3499 | *(d--) = '0'; | |
3500 | } | |
3501 | else { | |
9d116dd7 JH |
3502 | #ifdef EBCDIC |
3503 | /* MKS: The original code here died if letters weren't consecutive. | |
3504 | * at least it didn't have to worry about non-C locales. The | |
3505 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
3506 | * arranged in order (although not consecutively) and that only | |
3507 | * [A-Za-z] are accepted by isALPHA in the C locale. | |
3508 | */ | |
3509 | if (*d != 'z' && *d != 'Z') { | |
3510 | do { ++*d; } while (!isALPHA(*d)); | |
3511 | return; | |
3512 | } | |
3513 | *(d--) -= 'z' - 'a'; | |
3514 | #else | |
79072805 LW |
3515 | ++*d; |
3516 | if (isALPHA(*d)) | |
3517 | return; | |
3518 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 3519 | #endif |
79072805 LW |
3520 | } |
3521 | } | |
3522 | /* oh,oh, the number grew */ | |
3523 | SvGROW(sv, SvCUR(sv) + 2); | |
3524 | SvCUR(sv)++; | |
463ee0b2 | 3525 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
3526 | *d = d[-1]; |
3527 | if (isDIGIT(d[1])) | |
3528 | *d = '1'; | |
3529 | else | |
3530 | *d = d[1]; | |
3531 | } | |
3532 | ||
3533 | void | |
8ac85365 | 3534 | sv_dec(register SV *sv) |
79072805 | 3535 | { |
463ee0b2 LW |
3536 | int flags; |
3537 | ||
79072805 LW |
3538 | if (!sv) |
3539 | return; | |
b23a5f78 GB |
3540 | if (SvGMAGICAL(sv)) |
3541 | mg_get(sv); | |
ed6116ce | 3542 | if (SvTHINKFIRST(sv)) { |
0f15f207 MB |
3543 | if (SvREADONLY(sv)) { |
3544 | dTHR; | |
3280af22 | 3545 | if (PL_curcop != &PL_compiling) |
22c35a8c | 3546 | croak(PL_no_modify); |
0f15f207 | 3547 | } |
a0d0e21e | 3548 | if (SvROK(sv)) { |
b5be31e9 | 3549 | IV i; |
a0d0e21e | 3550 | #ifdef OVERLOAD |
b5be31e9 | 3551 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return; |
a0d0e21e | 3552 | #endif /* OVERLOAD */ |
b5be31e9 SM |
3553 | i = (IV)SvRV(sv); |
3554 | sv_unref(sv); | |
3555 | sv_setiv(sv, i); | |
a0d0e21e | 3556 | } |
ed6116ce | 3557 | } |
8990e307 | 3558 | flags = SvFLAGS(sv); |
8990e307 | 3559 | if (flags & SVp_NOK) { |
463ee0b2 | 3560 | SvNVX(sv) -= 1.0; |
a0d0e21e | 3561 | (void)SvNOK_only(sv); |
79072805 LW |
3562 | return; |
3563 | } | |
55497cff | 3564 | if (flags & SVp_IOK) { |
3565 | if (SvIVX(sv) == IV_MIN) | |
3566 | sv_setnv(sv, (double)IV_MIN - 1.0); | |
3567 | else { | |
3568 | (void)SvIOK_only(sv); | |
3569 | --SvIVX(sv); | |
3570 | } | |
3571 | return; | |
3572 | } | |
8990e307 | 3573 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
3574 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
3575 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 3576 | SvNVX(sv) = -1.0; |
a0d0e21e | 3577 | (void)SvNOK_only(sv); |
79072805 LW |
3578 | return; |
3579 | } | |
36477c24 | 3580 | SET_NUMERIC_STANDARD(); |
bbce6d69 | 3581 | sv_setnv(sv,atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
3582 | } |
3583 | ||
3584 | /* Make a string that will exist for the duration of the expression | |
3585 | * evaluation. Actually, it may have to last longer than that, but | |
3586 | * hopefully we won't free it until it has been assigned to a | |
3587 | * permanent location. */ | |
3588 | ||
76e3520e | 3589 | STATIC void |
8ac85365 | 3590 | sv_mortalgrow(void) |
8990e307 | 3591 | { |
11343788 | 3592 | dTHR; |
3280af22 NIS |
3593 | PL_tmps_max += (PL_tmps_max < 512) ? 128 : 512; |
3594 | Renew(PL_tmps_stack, PL_tmps_max, SV*); | |
8990e307 LW |
3595 | } |
3596 | ||
79072805 | 3597 | SV * |
8ac85365 | 3598 | sv_mortalcopy(SV *oldstr) |
79072805 | 3599 | { |
11343788 | 3600 | dTHR; |
463ee0b2 | 3601 | register SV *sv; |
79072805 | 3602 | |
4561caa4 | 3603 | new_SV(sv); |
8990e307 LW |
3604 | SvANY(sv) = 0; |
3605 | SvREFCNT(sv) = 1; | |
3606 | SvFLAGS(sv) = 0; | |
79072805 | 3607 | sv_setsv(sv,oldstr); |
3280af22 | 3608 | if (++PL_tmps_ix >= PL_tmps_max) |
8990e307 | 3609 | sv_mortalgrow(); |
3280af22 | 3610 | PL_tmps_stack[PL_tmps_ix] = sv; |
8990e307 LW |
3611 | SvTEMP_on(sv); |
3612 | return sv; | |
3613 | } | |
3614 | ||
3615 | SV * | |
8ac85365 | 3616 | sv_newmortal(void) |
8990e307 | 3617 | { |
11343788 | 3618 | dTHR; |
8990e307 LW |
3619 | register SV *sv; |
3620 | ||
4561caa4 | 3621 | new_SV(sv); |
8990e307 LW |
3622 | SvANY(sv) = 0; |
3623 | SvREFCNT(sv) = 1; | |
3624 | SvFLAGS(sv) = SVs_TEMP; | |
3280af22 | 3625 | if (++PL_tmps_ix >= PL_tmps_max) |
8990e307 | 3626 | sv_mortalgrow(); |
3280af22 | 3627 | PL_tmps_stack[PL_tmps_ix] = sv; |
79072805 LW |
3628 | return sv; |
3629 | } | |
3630 | ||
3631 | /* same thing without the copying */ | |
3632 | ||
3633 | SV * | |
8ac85365 | 3634 | sv_2mortal(register SV *sv) |
79072805 | 3635 | { |
11343788 | 3636 | dTHR; |
79072805 LW |
3637 | if (!sv) |
3638 | return sv; | |
d689ffdd | 3639 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 3640 | return sv; |
3280af22 | 3641 | if (++PL_tmps_ix >= PL_tmps_max) |
8990e307 | 3642 | sv_mortalgrow(); |
3280af22 | 3643 | PL_tmps_stack[PL_tmps_ix] = sv; |
8990e307 | 3644 | SvTEMP_on(sv); |
79072805 LW |
3645 | return sv; |
3646 | } | |
3647 | ||
3648 | SV * | |
8ac85365 | 3649 | newSVpv(char *s, STRLEN len) |
79072805 | 3650 | { |
463ee0b2 | 3651 | register SV *sv; |
79072805 | 3652 | |
4561caa4 | 3653 | new_SV(sv); |
8990e307 LW |
3654 | SvANY(sv) = 0; |
3655 | SvREFCNT(sv) = 1; | |
3656 | SvFLAGS(sv) = 0; | |
79072805 LW |
3657 | if (!len) |
3658 | len = strlen(s); | |
3659 | sv_setpvn(sv,s,len); | |
3660 | return sv; | |
3661 | } | |
3662 | ||
9da1e3b5 | 3663 | SV * |
9d8a25dc | 3664 | newSVpvn(char *s, STRLEN len) |
9da1e3b5 MUN |
3665 | { |
3666 | register SV *sv; | |
3667 | ||
3668 | new_SV(sv); | |
3669 | SvANY(sv) = 0; | |
3670 | SvREFCNT(sv) = 1; | |
3671 | SvFLAGS(sv) = 0; | |
3672 | sv_setpvn(sv,s,len); | |
3673 | return sv; | |
3674 | } | |
3675 | ||
46fc3d4c | 3676 | SV * |
3677 | newSVpvf(const char* pat, ...) | |
46fc3d4c | 3678 | { |
3679 | register SV *sv; | |
3680 | va_list args; | |
3681 | ||
3682 | new_SV(sv); | |
3683 | SvANY(sv) = 0; | |
3684 | SvREFCNT(sv) = 1; | |
3685 | SvFLAGS(sv) = 0; | |
46fc3d4c | 3686 | va_start(args, pat); |
fc36a67e | 3687 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 3688 | va_end(args); |
3689 | return sv; | |
3690 | } | |
3691 | ||
3692 | ||
79072805 | 3693 | SV * |
8ac85365 | 3694 | newSVnv(double n) |
79072805 | 3695 | { |
463ee0b2 | 3696 | register SV *sv; |
79072805 | 3697 | |
4561caa4 | 3698 | new_SV(sv); |
8990e307 LW |
3699 | SvANY(sv) = 0; |
3700 | SvREFCNT(sv) = 1; | |
3701 | SvFLAGS(sv) = 0; | |
79072805 LW |
3702 | sv_setnv(sv,n); |
3703 | return sv; | |
3704 | } | |
3705 | ||
3706 | SV * | |
8ac85365 | 3707 | newSViv(IV i) |
79072805 | 3708 | { |
463ee0b2 | 3709 | register SV *sv; |
79072805 | 3710 | |
4561caa4 | 3711 | new_SV(sv); |
8990e307 LW |
3712 | SvANY(sv) = 0; |
3713 | SvREFCNT(sv) = 1; | |
3714 | SvFLAGS(sv) = 0; | |
79072805 LW |
3715 | sv_setiv(sv,i); |
3716 | return sv; | |
3717 | } | |
3718 | ||
2304df62 | 3719 | SV * |
d689ffdd | 3720 | newRV_noinc(SV *tmpRef) |
2304df62 | 3721 | { |
11343788 | 3722 | dTHR; |
2304df62 AD |
3723 | register SV *sv; |
3724 | ||
4561caa4 | 3725 | new_SV(sv); |
2304df62 AD |
3726 | SvANY(sv) = 0; |
3727 | SvREFCNT(sv) = 1; | |
3728 | SvFLAGS(sv) = 0; | |
3729 | sv_upgrade(sv, SVt_RV); | |
76e3520e | 3730 | SvTEMP_off(tmpRef); |
d689ffdd | 3731 | SvRV(sv) = tmpRef; |
2304df62 | 3732 | SvROK_on(sv); |
2304df62 AD |
3733 | return sv; |
3734 | } | |
3735 | ||
5f05dabc | 3736 | SV * |
d689ffdd | 3737 | newRV(SV *tmpRef) |
5f05dabc | 3738 | { |
5f6447b6 | 3739 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 3740 | } |
5f05dabc | 3741 | |
79072805 LW |
3742 | /* make an exact duplicate of old */ |
3743 | ||
3744 | SV * | |
8ac85365 | 3745 | newSVsv(register SV *old) |
79072805 | 3746 | { |
463ee0b2 | 3747 | register SV *sv; |
79072805 LW |
3748 | |
3749 | if (!old) | |
3750 | return Nullsv; | |
8990e307 | 3751 | if (SvTYPE(old) == SVTYPEMASK) { |
79072805 LW |
3752 | warn("semi-panic: attempt to dup freed string"); |
3753 | return Nullsv; | |
3754 | } | |
4561caa4 | 3755 | new_SV(sv); |
8990e307 LW |
3756 | SvANY(sv) = 0; |
3757 | SvREFCNT(sv) = 1; | |
3758 | SvFLAGS(sv) = 0; | |
ff68c719 | 3759 | if (SvTEMP(old)) { |
3760 | SvTEMP_off(old); | |
463ee0b2 | 3761 | sv_setsv(sv,old); |
ff68c719 | 3762 | SvTEMP_on(old); |
79072805 LW |
3763 | } |
3764 | else | |
463ee0b2 LW |
3765 | sv_setsv(sv,old); |
3766 | return sv; | |
79072805 LW |
3767 | } |
3768 | ||
3769 | void | |
8ac85365 | 3770 | sv_reset(register char *s, HV *stash) |
79072805 LW |
3771 | { |
3772 | register HE *entry; | |
3773 | register GV *gv; | |
3774 | register SV *sv; | |
3775 | register I32 i; | |
3776 | register PMOP *pm; | |
3777 | register I32 max; | |
463ee0b2 | 3778 | char todo[256]; |
79072805 | 3779 | |
49d8d3a1 MB |
3780 | if (!stash) |
3781 | return; | |
3782 | ||
79072805 LW |
3783 | if (!*s) { /* reset ?? searches */ |
3784 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 3785 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
3786 | } |
3787 | return; | |
3788 | } | |
3789 | ||
3790 | /* reset variables */ | |
3791 | ||
3792 | if (!HvARRAY(stash)) | |
3793 | return; | |
463ee0b2 LW |
3794 | |
3795 | Zero(todo, 256, char); | |
79072805 LW |
3796 | while (*s) { |
3797 | i = *s; | |
3798 | if (s[1] == '-') { | |
3799 | s += 2; | |
3800 | } | |
3801 | max = *s++; | |
3802 | for ( ; i <= max; i++) { | |
463ee0b2 LW |
3803 | todo[i] = 1; |
3804 | } | |
a0d0e21e | 3805 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 3806 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
3807 | entry; |
3808 | entry = HeNEXT(entry)) | |
3809 | { | |
1edc1566 | 3810 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 3811 | continue; |
1edc1566 | 3812 | gv = (GV*)HeVAL(entry); |
79072805 | 3813 | sv = GvSV(gv); |
9e35f4b3 GS |
3814 | if (SvTHINKFIRST(sv)) { |
3815 | if (!SvREADONLY(sv) && SvROK(sv)) | |
3816 | sv_unref(sv); | |
3817 | continue; | |
3818 | } | |
a0d0e21e | 3819 | (void)SvOK_off(sv); |
79072805 LW |
3820 | if (SvTYPE(sv) >= SVt_PV) { |
3821 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
3822 | if (SvPVX(sv) != Nullch) |
3823 | *SvPVX(sv) = '\0'; | |
44a8e56a | 3824 | SvTAINT(sv); |
79072805 LW |
3825 | } |
3826 | if (GvAV(gv)) { | |
3827 | av_clear(GvAV(gv)); | |
3828 | } | |
44a8e56a | 3829 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 3830 | hv_clear(GvHV(gv)); |
a0d0e21e | 3831 | #ifndef VMS /* VMS has no environ array */ |
3280af22 | 3832 | if (gv == PL_envgv) |
79072805 | 3833 | environ[0] = Nullch; |
a0d0e21e | 3834 | #endif |
79072805 LW |
3835 | } |
3836 | } | |
3837 | } | |
3838 | } | |
3839 | } | |
3840 | ||
46fc3d4c | 3841 | IO* |
8ac85365 | 3842 | sv_2io(SV *sv) |
46fc3d4c | 3843 | { |
3844 | IO* io; | |
3845 | GV* gv; | |
2d8e6c8d | 3846 | STRLEN n_a; |
46fc3d4c | 3847 | |
3848 | switch (SvTYPE(sv)) { | |
3849 | case SVt_PVIO: | |
3850 | io = (IO*)sv; | |
3851 | break; | |
3852 | case SVt_PVGV: | |
3853 | gv = (GV*)sv; | |
3854 | io = GvIO(gv); | |
3855 | if (!io) | |
3856 | croak("Bad filehandle: %s", GvNAME(gv)); | |
3857 | break; | |
3858 | default: | |
3859 | if (!SvOK(sv)) | |
22c35a8c | 3860 | croak(PL_no_usym, "filehandle"); |
46fc3d4c | 3861 | if (SvROK(sv)) |
3862 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 3863 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 3864 | if (gv) |
3865 | io = GvIO(gv); | |
3866 | else | |
3867 | io = 0; | |
3868 | if (!io) | |
2d8e6c8d | 3869 | croak("Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 3870 | break; |
3871 | } | |
3872 | return io; | |
3873 | } | |
3874 | ||
79072805 | 3875 | CV * |
8ac85365 | 3876 | sv_2cv(SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 LW |
3877 | { |
3878 | GV *gv; | |
3879 | CV *cv; | |
2d8e6c8d | 3880 | STRLEN n_a; |
79072805 LW |
3881 | |
3882 | if (!sv) | |
93a17b20 | 3883 | return *gvp = Nullgv, Nullcv; |
79072805 | 3884 | switch (SvTYPE(sv)) { |
79072805 LW |
3885 | case SVt_PVCV: |
3886 | *st = CvSTASH(sv); | |
3887 | *gvp = Nullgv; | |
3888 | return (CV*)sv; | |
3889 | case SVt_PVHV: | |
3890 | case SVt_PVAV: | |
3891 | *gvp = Nullgv; | |
3892 | return Nullcv; | |
8990e307 LW |
3893 | case SVt_PVGV: |
3894 | gv = (GV*)sv; | |
a0d0e21e | 3895 | *gvp = gv; |
8990e307 LW |
3896 | *st = GvESTASH(gv); |
3897 | goto fix_gv; | |
3898 | ||
79072805 | 3899 | default: |
a0d0e21e LW |
3900 | if (SvGMAGICAL(sv)) |
3901 | mg_get(sv); | |
3902 | if (SvROK(sv)) { | |
0f4592ef | 3903 | dTHR; |
f5284f61 IZ |
3904 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
3905 | tryAMAGICunDEREF(to_cv); | |
3906 | ||
62f274bf GS |
3907 | sv = SvRV(sv); |
3908 | if (SvTYPE(sv) == SVt_PVCV) { | |
3909 | cv = (CV*)sv; | |
3910 | *gvp = Nullgv; | |
3911 | *st = CvSTASH(cv); | |
3912 | return cv; | |
3913 | } | |
3914 | else if(isGV(sv)) | |
3915 | gv = (GV*)sv; | |
3916 | else | |
a0d0e21e | 3917 | croak("Not a subroutine reference"); |
a0d0e21e | 3918 | } |
62f274bf | 3919 | else if (isGV(sv)) |
79072805 LW |
3920 | gv = (GV*)sv; |
3921 | else | |
2d8e6c8d | 3922 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
3923 | *gvp = gv; |
3924 | if (!gv) | |
3925 | return Nullcv; | |
3926 | *st = GvESTASH(gv); | |
8990e307 | 3927 | fix_gv: |
8ebc5c01 | 3928 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 3929 | SV *tmpsv; |
748a9306 | 3930 | ENTER; |
4633a7c4 | 3931 | tmpsv = NEWSV(704,0); |
16660edb | 3932 | gv_efullname3(tmpsv, gv, Nullch); |
774d564b | 3933 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
3934 | newSVOP(OP_CONST, 0, tmpsv), |
3935 | Nullop, | |
8990e307 | 3936 | Nullop); |
748a9306 | 3937 | LEAVE; |
8ebc5c01 | 3938 | if (!GvCVu(gv)) |
2d8e6c8d | 3939 | croak("Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 3940 | } |
8ebc5c01 | 3941 | return GvCVu(gv); |
79072805 LW |
3942 | } |
3943 | } | |
3944 | ||
79072805 | 3945 | I32 |
4e35701f | 3946 | sv_true(register SV *sv) |
79072805 | 3947 | { |
4e35701f | 3948 | dTHR; |
8990e307 LW |
3949 | if (!sv) |
3950 | return 0; | |
79072805 | 3951 | if (SvPOK(sv)) { |
4e35701f NIS |
3952 | register XPV* tXpv; |
3953 | if ((tXpv = (XPV*)SvANY(sv)) && | |
3954 | (*tXpv->xpv_pv > '0' || | |
3955 | tXpv->xpv_cur > 1 || | |
3956 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) | |
79072805 LW |
3957 | return 1; |
3958 | else | |
3959 | return 0; | |
3960 | } | |
3961 | else { | |
3962 | if (SvIOK(sv)) | |
463ee0b2 | 3963 | return SvIVX(sv) != 0; |
79072805 LW |
3964 | else { |
3965 | if (SvNOK(sv)) | |
463ee0b2 | 3966 | return SvNVX(sv) != 0.0; |
79072805 | 3967 | else |
463ee0b2 | 3968 | return sv_2bool(sv); |
79072805 LW |
3969 | } |
3970 | } | |
3971 | } | |
79072805 | 3972 | |
ff68c719 | 3973 | IV |
4e35701f | 3974 | sv_iv(register SV *sv) |
85e6fe83 | 3975 | { |
ff68c719 | 3976 | if (SvIOK(sv)) |
3977 | return SvIVX(sv); | |
3978 | return sv_2iv(sv); | |
85e6fe83 | 3979 | } |
85e6fe83 | 3980 | |
ff68c719 | 3981 | UV |
4e35701f | 3982 | sv_uv(register SV *sv) |
ff68c719 | 3983 | { |
3984 | if (SvIOK(sv)) | |
3985 | return SvUVX(sv); | |
3986 | return sv_2uv(sv); | |
3987 | } | |
85e6fe83 | 3988 | |
ff68c719 | 3989 | double |
4e35701f | 3990 | sv_nv(register SV *sv) |
79072805 | 3991 | { |
ff68c719 | 3992 | if (SvNOK(sv)) |
3993 | return SvNVX(sv); | |
3994 | return sv_2nv(sv); | |
79072805 | 3995 | } |
79072805 | 3996 | |
79072805 | 3997 | char * |
8ac85365 | 3998 | sv_pvn(SV *sv, STRLEN *lp) |
79072805 | 3999 | { |
85e6fe83 LW |
4000 | if (SvPOK(sv)) { |
4001 | *lp = SvCUR(sv); | |
a0d0e21e | 4002 | return SvPVX(sv); |
85e6fe83 | 4003 | } |
463ee0b2 | 4004 | return sv_2pv(sv, lp); |
79072805 | 4005 | } |
79072805 | 4006 | |
a0d0e21e | 4007 | char * |
8ac85365 | 4008 | sv_pvn_force(SV *sv, STRLEN *lp) |
a0d0e21e LW |
4009 | { |
4010 | char *s; | |
4011 | ||
0f15f207 MB |
4012 | if (SvREADONLY(sv)) { |
4013 | dTHR; | |
3280af22 | 4014 | if (PL_curcop != &PL_compiling) |
22c35a8c | 4015 | croak(PL_no_modify); |
0f15f207 | 4016 | } |
a0d0e21e LW |
4017 | |
4018 | if (SvPOK(sv)) { | |
4019 | *lp = SvCUR(sv); | |
4020 | } | |
4021 | else { | |
748a9306 | 4022 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
4633a7c4 | 4023 | if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) { |
a0d0e21e | 4024 | sv_unglob(sv); |
4633a7c4 LW |
4025 | s = SvPVX(sv); |
4026 | *lp = SvCUR(sv); | |
4027 | } | |
11343788 MB |
4028 | else { |
4029 | dTHR; | |
a0d0e21e | 4030 | croak("Can't coerce %s to string in %s", sv_reftype(sv,0), |
22c35a8c | 4031 | PL_op_name[PL_op->op_type]); |
11343788 | 4032 | } |
a0d0e21e | 4033 | } |
4633a7c4 LW |
4034 | else |
4035 | s = sv_2pv(sv, lp); | |
a0d0e21e LW |
4036 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
4037 | STRLEN len = *lp; | |
4038 | ||
4039 | if (SvROK(sv)) | |
4040 | sv_unref(sv); | |
4041 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
4042 | SvGROW(sv, len + 1); | |
4043 | Move(s,SvPVX(sv),len,char); | |
4044 | SvCUR_set(sv, len); | |
4045 | *SvEND(sv) = '\0'; | |
4046 | } | |
4047 | if (!SvPOK(sv)) { | |
4048 | SvPOK_on(sv); /* validate pointer */ | |
4049 | SvTAINT(sv); | |
760ac839 | 4050 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%lx 2pv(%s)\n", |
a0d0e21e LW |
4051 | (unsigned long)sv,SvPVX(sv))); |
4052 | } | |
4053 | } | |
4054 | return SvPVX(sv); | |
4055 | } | |
4056 | ||
4057 | char * | |
8ac85365 | 4058 | sv_reftype(SV *sv, int ob) |
a0d0e21e LW |
4059 | { |
4060 | if (ob && SvOBJECT(sv)) | |
4061 | return HvNAME(SvSTASH(sv)); | |
4062 | else { | |
4063 | switch (SvTYPE(sv)) { | |
4064 | case SVt_NULL: | |
4065 | case SVt_IV: | |
4066 | case SVt_NV: | |
4067 | case SVt_RV: | |
4068 | case SVt_PV: | |
4069 | case SVt_PVIV: | |
4070 | case SVt_PVNV: | |
4071 | case SVt_PVMG: | |
4072 | case SVt_PVBM: | |
4073 | if (SvROK(sv)) | |
4074 | return "REF"; | |
4075 | else | |
4076 | return "SCALAR"; | |
4077 | case SVt_PVLV: return "LVALUE"; | |
4078 | case SVt_PVAV: return "ARRAY"; | |
4079 | case SVt_PVHV: return "HASH"; | |
4080 | case SVt_PVCV: return "CODE"; | |
4081 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 4082 | case SVt_PVFM: return "FORMAT"; |
a0d0e21e LW |
4083 | default: return "UNKNOWN"; |
4084 | } | |
4085 | } | |
4086 | } | |
4087 | ||
463ee0b2 | 4088 | int |
8ac85365 | 4089 | sv_isobject(SV *sv) |
85e6fe83 | 4090 | { |
68dc0745 | 4091 | if (!sv) |
4092 | return 0; | |
4093 | if (SvGMAGICAL(sv)) | |
4094 | mg_get(sv); | |
85e6fe83 LW |
4095 | if (!SvROK(sv)) |
4096 | return 0; | |
4097 | sv = (SV*)SvRV(sv); | |
4098 | if (!SvOBJECT(sv)) | |
4099 | return 0; | |
4100 | return 1; | |
4101 | } | |
4102 | ||
4103 | int | |
8ac85365 | 4104 | sv_isa(SV *sv, char *name) |
463ee0b2 | 4105 | { |
68dc0745 | 4106 | if (!sv) |
4107 | return 0; | |
4108 | if (SvGMAGICAL(sv)) | |
4109 | mg_get(sv); | |
ed6116ce | 4110 | if (!SvROK(sv)) |
463ee0b2 | 4111 | return 0; |
ed6116ce LW |
4112 | sv = (SV*)SvRV(sv); |
4113 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
4114 | return 0; |
4115 | ||
4116 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
4117 | } | |
4118 | ||
4119 | SV* | |
8ac85365 | 4120 | newSVrv(SV *rv, char *classname) |
463ee0b2 | 4121 | { |
11343788 | 4122 | dTHR; |
463ee0b2 LW |
4123 | SV *sv; |
4124 | ||
4561caa4 | 4125 | new_SV(sv); |
8990e307 | 4126 | SvANY(sv) = 0; |
a0d0e21e | 4127 | SvREFCNT(sv) = 0; |
8990e307 | 4128 | SvFLAGS(sv) = 0; |
51cf62d8 | 4129 | |
2213622d | 4130 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 OT |
4131 | #ifdef OVERLOAD |
4132 | SvAMAGIC_off(rv); | |
4133 | #endif /* OVERLOAD */ | |
4134 | ||
4135 | if (SvTYPE(rv) < SVt_RV) | |
4136 | sv_upgrade(rv, SVt_RV); | |
4137 | ||
4138 | (void)SvOK_off(rv); | |
8990e307 | 4139 | SvRV(rv) = SvREFCNT_inc(sv); |
ed6116ce | 4140 | SvROK_on(rv); |
463ee0b2 | 4141 | |
a0d0e21e LW |
4142 | if (classname) { |
4143 | HV* stash = gv_stashpv(classname, TRUE); | |
4144 | (void)sv_bless(rv, stash); | |
4145 | } | |
4146 | return sv; | |
4147 | } | |
4148 | ||
4149 | SV* | |
8ac85365 | 4150 | sv_setref_pv(SV *rv, char *classname, void *pv) |
a0d0e21e | 4151 | { |
189b2af5 | 4152 | if (!pv) { |
3280af22 | 4153 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
4154 | SvSETMAGIC(rv); |
4155 | } | |
a0d0e21e LW |
4156 | else |
4157 | sv_setiv(newSVrv(rv,classname), (IV)pv); | |
4158 | return rv; | |
4159 | } | |
4160 | ||
4161 | SV* | |
8ac85365 | 4162 | sv_setref_iv(SV *rv, char *classname, IV iv) |
a0d0e21e LW |
4163 | { |
4164 | sv_setiv(newSVrv(rv,classname), iv); | |
4165 | return rv; | |
4166 | } | |
4167 | ||
4168 | SV* | |
8ac85365 | 4169 | sv_setref_nv(SV *rv, char *classname, double nv) |
a0d0e21e LW |
4170 | { |
4171 | sv_setnv(newSVrv(rv,classname), nv); | |
4172 | return rv; | |
4173 | } | |
463ee0b2 | 4174 | |
a0d0e21e | 4175 | SV* |
8ac85365 | 4176 | sv_setref_pvn(SV *rv, char *classname, char *pv, I32 n) |
a0d0e21e LW |
4177 | { |
4178 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
4179 | return rv; |
4180 | } | |
4181 | ||
a0d0e21e | 4182 | SV* |
8ac85365 | 4183 | sv_bless(SV *sv, HV *stash) |
a0d0e21e | 4184 | { |
11343788 | 4185 | dTHR; |
76e3520e | 4186 | SV *tmpRef; |
a0d0e21e LW |
4187 | if (!SvROK(sv)) |
4188 | croak("Can't bless non-reference value"); | |
76e3520e GS |
4189 | tmpRef = SvRV(sv); |
4190 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
4191 | if (SvREADONLY(tmpRef)) | |
22c35a8c | 4192 | croak(PL_no_modify); |
76e3520e GS |
4193 | if (SvOBJECT(tmpRef)) { |
4194 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 4195 | --PL_sv_objcount; |
76e3520e | 4196 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 4197 | } |
a0d0e21e | 4198 | } |
76e3520e GS |
4199 | SvOBJECT_on(tmpRef); |
4200 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 4201 | ++PL_sv_objcount; |
76e3520e GS |
4202 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
4203 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e LW |
4204 | |
4205 | #ifdef OVERLOAD | |
2e3febc6 CS |
4206 | if (Gv_AMG(stash)) |
4207 | SvAMAGIC_on(sv); | |
4208 | else | |
4209 | SvAMAGIC_off(sv); | |
a0d0e21e LW |
4210 | #endif /* OVERLOAD */ |
4211 | ||
4212 | return sv; | |
4213 | } | |
4214 | ||
76e3520e | 4215 | STATIC void |
8ac85365 | 4216 | sv_unglob(SV *sv) |
a0d0e21e LW |
4217 | { |
4218 | assert(SvTYPE(sv) == SVt_PVGV); | |
4219 | SvFAKE_off(sv); | |
4220 | if (GvGP(sv)) | |
1edc1566 | 4221 | gp_free((GV*)sv); |
e826b3c7 GS |
4222 | if (GvSTASH(sv)) { |
4223 | SvREFCNT_dec(GvSTASH(sv)); | |
4224 | GvSTASH(sv) = Nullhv; | |
4225 | } | |
a0d0e21e LW |
4226 | sv_unmagic(sv, '*'); |
4227 | Safefree(GvNAME(sv)); | |
a5f75d66 | 4228 | GvMULTI_off(sv); |
a0d0e21e LW |
4229 | SvFLAGS(sv) &= ~SVTYPEMASK; |
4230 | SvFLAGS(sv) |= SVt_PVMG; | |
4231 | } | |
4232 | ||
ed6116ce | 4233 | void |
8ac85365 | 4234 | sv_unref(SV *sv) |
ed6116ce | 4235 | { |
a0d0e21e LW |
4236 | SV* rv = SvRV(sv); |
4237 | ||
ed6116ce LW |
4238 | SvRV(sv) = 0; |
4239 | SvROK_off(sv); | |
4633a7c4 LW |
4240 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv)) |
4241 | SvREFCNT_dec(rv); | |
8e07c86e | 4242 | else |
4633a7c4 | 4243 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 4244 | } |
8990e307 | 4245 | |
bbce6d69 | 4246 | void |
8ac85365 | 4247 | sv_taint(SV *sv) |
bbce6d69 | 4248 | { |
4249 | sv_magic((sv), Nullsv, 't', Nullch, 0); | |
4250 | } | |
4251 | ||
4252 | void | |
8ac85365 | 4253 | sv_untaint(SV *sv) |
bbce6d69 | 4254 | { |
13f57bf8 | 4255 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
36477c24 | 4256 | MAGIC *mg = mg_find(sv, 't'); |
4257 | if (mg) | |
565764a8 | 4258 | mg->mg_len &= ~1; |
36477c24 | 4259 | } |
bbce6d69 | 4260 | } |
4261 | ||
4262 | bool | |
8ac85365 | 4263 | sv_tainted(SV *sv) |
bbce6d69 | 4264 | { |
13f57bf8 | 4265 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
36477c24 | 4266 | MAGIC *mg = mg_find(sv, 't'); |
565764a8 | 4267 | if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv)) |
36477c24 | 4268 | return TRUE; |
4269 | } | |
4270 | return FALSE; | |
bbce6d69 | 4271 | } |
4272 | ||
84902520 | 4273 | void |
8ac85365 | 4274 | sv_setpviv(SV *sv, IV iv) |
84902520 TB |
4275 | { |
4276 | STRLEN len; | |
4277 | char buf[TYPE_DIGITS(UV)]; | |
4278 | char *ptr = buf + sizeof(buf); | |
4279 | int sign; | |
4280 | UV uv; | |
4281 | char *p; | |
84902520 TB |
4282 | |
4283 | sv_setpvn(sv, "", 0); | |
4284 | if (iv >= 0) { | |
4285 | uv = iv; | |
4286 | sign = 0; | |
4287 | } else { | |
4288 | uv = -iv; | |
4289 | sign = 1; | |
4290 | } | |
4291 | do { | |
4292 | *--ptr = '0' + (uv % 10); | |
4293 | } while (uv /= 10); | |
4294 | len = (buf + sizeof(buf)) - ptr; | |
4295 | /* taking advantage of SvCUR(sv) == 0 */ | |
4296 | SvGROW(sv, sign + len + 1); | |
4297 | p = SvPVX(sv); | |
4298 | if (sign) | |
4299 | *p++ = '-'; | |
4300 | memcpy(p, ptr, len); | |
4301 | p += len; | |
4302 | *p = '\0'; | |
4303 | SvCUR(sv) = p - SvPVX(sv); | |
4304 | } | |
4305 | ||
ef50df4b GS |
4306 | |
4307 | void | |
4308 | sv_setpviv_mg(SV *sv, IV iv) | |
4309 | { | |
4310 | sv_setpviv(sv,iv); | |
4311 | SvSETMAGIC(sv); | |
4312 | } | |
4313 | ||
46fc3d4c | 4314 | void |
4315 | sv_setpvf(SV *sv, const char* pat, ...) | |
46fc3d4c | 4316 | { |
4317 | va_list args; | |
46fc3d4c | 4318 | va_start(args, pat); |
fc36a67e | 4319 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 4320 | va_end(args); |
4321 | } | |
4322 | ||
ef50df4b | 4323 | |
ef50df4b GS |
4324 | void |
4325 | sv_setpvf_mg(SV *sv, const char* pat, ...) | |
ef50df4b GS |
4326 | { |
4327 | va_list args; | |
ef50df4b | 4328 | va_start(args, pat); |
ef50df4b GS |
4329 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
4330 | va_end(args); | |
4331 | SvSETMAGIC(sv); | |
4332 | } | |
4333 | ||
46fc3d4c | 4334 | void |
4335 | sv_catpvf(SV *sv, const char* pat, ...) | |
46fc3d4c | 4336 | { |
4337 | va_list args; | |
46fc3d4c | 4338 | va_start(args, pat); |
fc36a67e | 4339 | sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c | 4340 | va_end(args); |
4341 | } | |
4342 | ||
ef50df4b GS |
4343 | void |
4344 | sv_catpvf_mg(SV *sv, const char* pat, ...) | |
ef50df4b GS |
4345 | { |
4346 | va_list args; | |
ef50df4b | 4347 | va_start(args, pat); |
ef50df4b GS |
4348 | sv_vcatpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
4349 | va_end(args); | |
4350 | SvSETMAGIC(sv); | |
4351 | } | |
4352 | ||
46fc3d4c | 4353 | void |
ad8d18a8 | 4354 | sv_vsetpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale) |
46fc3d4c | 4355 | { |
4356 | sv_setpvn(sv, "", 0); | |
4357 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, used_locale); | |
4358 | } | |
4359 | ||
4360 | void | |
ad8d18a8 | 4361 | sv_vcatpvfn(SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *used_locale) |
46fc3d4c | 4362 | { |
e858de61 | 4363 | dTHR; |
46fc3d4c | 4364 | char *p; |
4365 | char *q; | |
4366 | char *patend; | |
fc36a67e | 4367 | STRLEN origlen; |
46fc3d4c | 4368 | I32 svix = 0; |
c635e13b | 4369 | static char nullstr[] = "(null)"; |
46fc3d4c | 4370 | |
4371 | /* no matter what, this is a string now */ | |
fc36a67e | 4372 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 4373 | |
fc36a67e | 4374 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 4375 | if (patlen == 0) |
4376 | return; | |
fc36a67e | 4377 | if (patlen == 2 && pat[0] == '%') { |
4378 | switch (pat[1]) { | |
4379 | case 's': | |
c635e13b | 4380 | if (args) { |
4381 | char *s = va_arg(*args, char*); | |
4382 | sv_catpv(sv, s ? s : nullstr); | |
4383 | } | |
fc36a67e | 4384 | else if (svix < svmax) |
4385 | sv_catsv(sv, *svargs); | |
4386 | return; | |
4387 | case '_': | |
4388 | if (args) { | |
4389 | sv_catsv(sv, va_arg(*args, SV*)); | |
4390 | return; | |
4391 | } | |
4392 | /* See comment on '_' below */ | |
4393 | break; | |
4394 | } | |
46fc3d4c | 4395 | } |
4396 | ||
4397 | patend = (char*)pat + patlen; | |
4398 | for (p = (char*)pat; p < patend; p = q) { | |
4399 | bool alt = FALSE; | |
4400 | bool left = FALSE; | |
4401 | char fill = ' '; | |
4402 | char plus = 0; | |
4403 | char intsize = 0; | |
4404 | STRLEN width = 0; | |
fc36a67e | 4405 | STRLEN zeros = 0; |
46fc3d4c | 4406 | bool has_precis = FALSE; |
4407 | STRLEN precis = 0; | |
4408 | ||
4409 | char esignbuf[4]; | |
dfe13c55 | 4410 | U8 utf8buf[10]; |
46fc3d4c | 4411 | STRLEN esignlen = 0; |
4412 | ||
4413 | char *eptr = Nullch; | |
fc36a67e | 4414 | STRLEN elen = 0; |
4415 | char ebuf[TYPE_DIGITS(int) * 2 + 16]; /* large enough for "%#.#f" */ | |
46fc3d4c | 4416 | |
4417 | static char *efloatbuf = Nullch; | |
4418 | static STRLEN efloatsize = 0; | |
4419 | ||
4420 | char c; | |
4421 | int i; | |
4422 | unsigned base; | |
4423 | IV iv; | |
4424 | UV uv; | |
4425 | double nv; | |
4426 | STRLEN have; | |
4427 | STRLEN need; | |
4428 | STRLEN gap; | |
4429 | ||
4430 | for (q = p; q < patend && *q != '%'; ++q) ; | |
4431 | if (q > p) { | |
4432 | sv_catpvn(sv, p, q - p); | |
4433 | p = q; | |
4434 | } | |
4435 | if (q++ >= patend) | |
4436 | break; | |
4437 | ||
fc36a67e | 4438 | /* FLAGS */ |
4439 | ||
46fc3d4c | 4440 | while (*q) { |
4441 | switch (*q) { | |
4442 | case ' ': | |
4443 | case '+': | |
4444 | plus = *q++; | |
4445 | continue; | |
4446 | ||
4447 | case '-': | |
4448 | left = TRUE; | |
4449 | q++; | |
4450 | continue; | |
4451 | ||
4452 | case '0': | |
4453 | fill = *q++; | |
4454 | continue; | |
4455 | ||
4456 | case '#': | |
4457 | alt = TRUE; | |
4458 | q++; | |
4459 | continue; | |
4460 | ||
fc36a67e | 4461 | default: |
4462 | break; | |
4463 | } | |
4464 | break; | |
4465 | } | |
46fc3d4c | 4466 | |
fc36a67e | 4467 | /* WIDTH */ |
4468 | ||
4469 | switch (*q) { | |
4470 | case '1': case '2': case '3': | |
4471 | case '4': case '5': case '6': | |
4472 | case '7': case '8': case '9': | |
4473 | width = 0; | |
4474 | while (isDIGIT(*q)) | |
4475 | width = width * 10 + (*q++ - '0'); | |
4476 | break; | |
4477 | ||
4478 | case '*': | |
4479 | if (args) | |
4480 | i = va_arg(*args, int); | |
4481 | else | |
4482 | i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4483 | left |= (i < 0); | |
4484 | width = (i < 0) ? -i : i; | |
4485 | q++; | |
4486 | break; | |
4487 | } | |
4488 | ||
4489 | /* PRECISION */ | |
46fc3d4c | 4490 | |
fc36a67e | 4491 | if (*q == '.') { |
4492 | q++; | |
4493 | if (*q == '*') { | |
46fc3d4c | 4494 | if (args) |
4495 | i = va_arg(*args, int); | |
4496 | else | |
4497 | i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
fc36a67e | 4498 | precis = (i < 0) ? 0 : i; |
46fc3d4c | 4499 | q++; |
fc36a67e | 4500 | } |
4501 | else { | |
4502 | precis = 0; | |
4503 | while (isDIGIT(*q)) | |
4504 | precis = precis * 10 + (*q++ - '0'); | |
4505 | } | |
4506 | has_precis = TRUE; | |
4507 | } | |
46fc3d4c | 4508 | |
fc36a67e | 4509 | /* SIZE */ |
46fc3d4c | 4510 | |
fc36a67e | 4511 | switch (*q) { |
4512 | case 'l': | |
4513 | #if 0 /* when quads have better support within Perl */ | |
4514 | if (*(q + 1) == 'l') { | |
4515 | intsize = 'q'; | |
4516 | q += 2; | |
46fc3d4c | 4517 | break; |
4518 | } | |
fc36a67e | 4519 | #endif |
4520 | /* FALL THROUGH */ | |
4521 | case 'h': | |
4522 | case 'V': | |
4523 | intsize = *q++; | |
46fc3d4c | 4524 | break; |
4525 | } | |
4526 | ||
fc36a67e | 4527 | /* CONVERSION */ |
4528 | ||
46fc3d4c | 4529 | switch (c = *q++) { |
4530 | ||
4531 | /* STRINGS */ | |
4532 | ||
4533 | case '%': | |
4534 | eptr = q - 1; | |
4535 | elen = 1; | |
4536 | goto string; | |
4537 | ||
4538 | case 'c': | |
a0ed51b3 LW |
4539 | if (IN_UTF8) { |
4540 | if (args) | |
4541 | uv = va_arg(*args, int); | |
4542 | else | |
4543 | uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4544 | ||
dfe13c55 GS |
4545 | eptr = (char*)utf8buf; |
4546 | elen = uv_to_utf8((U8*)eptr, uv) - utf8buf; | |
a0ed51b3 LW |
4547 | goto string; |
4548 | } | |
46fc3d4c | 4549 | if (args) |
4550 | c = va_arg(*args, int); | |
4551 | else | |
4552 | c = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4553 | eptr = &c; | |
4554 | elen = 1; | |
4555 | goto string; | |
4556 | ||
46fc3d4c | 4557 | case 's': |
4558 | if (args) { | |
fc36a67e | 4559 | eptr = va_arg(*args, char*); |
c635e13b | 4560 | if (eptr) |
4561 | elen = strlen(eptr); | |
4562 | else { | |
4563 | eptr = nullstr; | |
4564 | elen = sizeof nullstr - 1; | |
4565 | } | |
46fc3d4c | 4566 | } |
a0ed51b3 | 4567 | else if (svix < svmax) { |
46fc3d4c | 4568 | eptr = SvPVx(svargs[svix++], elen); |
a0ed51b3 LW |
4569 | if (IN_UTF8) { |
4570 | if (has_precis && precis < elen) { | |
4571 | I32 p = precis; | |
4572 | sv_pos_u2b(svargs[svix - 1], &p, 0); /* sticks at end */ | |
4573 | precis = p; | |
4574 | } | |
4575 | if (width) { /* fudge width (can't fudge elen) */ | |
4576 | width += elen - sv_len_utf8(svargs[svix - 1]); | |
4577 | } | |
4578 | } | |
4579 | } | |
46fc3d4c | 4580 | goto string; |
4581 | ||
fc36a67e | 4582 | case '_': |
4583 | /* | |
4584 | * The "%_" hack might have to be changed someday, | |
4585 | * if ISO or ANSI decide to use '_' for something. | |
4586 | * So we keep it hidden from users' code. | |
4587 | */ | |
4588 | if (!args) | |
4589 | goto unknown; | |
4590 | eptr = SvPVx(va_arg(*args, SV*), elen); | |
4591 | ||
46fc3d4c | 4592 | string: |
4593 | if (has_precis && elen > precis) | |
4594 | elen = precis; | |
4595 | break; | |
4596 | ||
4597 | /* INTEGERS */ | |
4598 | ||
fc36a67e | 4599 | case 'p': |
4600 | if (args) | |
4601 | uv = (UV)va_arg(*args, void*); | |
4602 | else | |
4603 | uv = (svix < svmax) ? (UV)svargs[svix++] : 0; | |
4604 | base = 16; | |
4605 | goto integer; | |
4606 | ||
46fc3d4c | 4607 | case 'D': |
4608 | intsize = 'l'; | |
4609 | /* FALL THROUGH */ | |
4610 | case 'd': | |
4611 | case 'i': | |
4612 | if (args) { | |
4613 | switch (intsize) { | |
4614 | case 'h': iv = (short)va_arg(*args, int); break; | |
4615 | default: iv = va_arg(*args, int); break; | |
4616 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 4617 | case 'V': iv = va_arg(*args, IV); break; |
46fc3d4c | 4618 | } |
4619 | } | |
4620 | else { | |
4621 | iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
4622 | switch (intsize) { | |
4623 | case 'h': iv = (short)iv; break; | |
4624 | default: iv = (int)iv; break; | |
4625 | case 'l': iv = (long)iv; break; | |
fc36a67e | 4626 | case 'V': break; |
46fc3d4c | 4627 | } |
4628 | } | |
4629 | if (iv >= 0) { | |
4630 | uv = iv; | |
4631 | if (plus) | |
4632 | esignbuf[esignlen++] = plus; | |
4633 | } | |
4634 | else { | |
4635 | uv = -iv; | |
4636 | esignbuf[esignlen++] = '-'; | |
4637 | } | |
4638 | base = 10; | |
4639 | goto integer; | |
4640 | ||
fc36a67e | 4641 | case 'U': |
4642 | intsize = 'l'; | |
4643 | /* FALL THROUGH */ | |
4644 | case 'u': | |
4645 | base = 10; | |
4646 | goto uns_integer; | |
4647 | ||
4f19785b WSI |
4648 | case 'b': |
4649 | base = 2; | |
4650 | goto uns_integer; | |
4651 | ||
46fc3d4c | 4652 | case 'O': |
4653 | intsize = 'l'; | |
4654 | /* FALL THROUGH */ | |
4655 | case 'o': | |
4656 | base = 8; | |
4657 | goto uns_integer; | |
4658 | ||
4659 | case 'X': | |
46fc3d4c | 4660 | case 'x': |
4661 | base = 16; | |
46fc3d4c | 4662 | |
4663 | uns_integer: | |
4664 | if (args) { | |
4665 | switch (intsize) { | |
4666 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
4667 | default: uv = va_arg(*args, unsigned); break; | |
4668 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 4669 | case 'V': uv = va_arg(*args, UV); break; |
46fc3d4c | 4670 | } |
4671 | } | |
4672 | else { | |
4673 | uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0; | |
4674 | switch (intsize) { | |
4675 | case 'h': uv = (unsigned short)uv; break; | |
4676 | default: uv = (unsigned)uv; break; | |
4677 | case 'l': uv = (unsigned long)uv; break; | |
fc36a67e | 4678 | case 'V': break; |
46fc3d4c | 4679 | } |
4680 | } | |
4681 | ||
4682 | integer: | |
46fc3d4c | 4683 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 4684 | switch (base) { |
4685 | unsigned dig; | |
4686 | case 16: | |
c10ed8b9 HS |
4687 | if (!uv) |
4688 | alt = FALSE; | |
fc36a67e | 4689 | p = (c == 'X') ? "0123456789ABCDEF" : "0123456789abcdef"; |
4690 | do { | |
4691 | dig = uv & 15; | |
4692 | *--eptr = p[dig]; | |
4693 | } while (uv >>= 4); | |
4694 | if (alt) { | |
46fc3d4c | 4695 | esignbuf[esignlen++] = '0'; |
fc36a67e | 4696 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 4697 | } |
fc36a67e | 4698 | break; |
4699 | case 8: | |
4700 | do { | |
4701 | dig = uv & 7; | |
4702 | *--eptr = '0' + dig; | |
4703 | } while (uv >>= 3); | |
4704 | if (alt && *eptr != '0') | |
4705 | *--eptr = '0'; | |
4706 | break; | |
4f19785b WSI |
4707 | case 2: |
4708 | do { | |
4709 | dig = uv & 1; | |
4710 | *--eptr = '0' + dig; | |
4711 | } while (uv >>= 1); | |
4712 | if (alt && *eptr != '0') | |
4713 | *--eptr = '0'; | |
4714 | break; | |
fc36a67e | 4715 | default: /* it had better be ten or less */ |
4716 | do { | |
4717 | dig = uv % base; | |
4718 | *--eptr = '0' + dig; | |
4719 | } while (uv /= base); | |
4720 | break; | |
46fc3d4c | 4721 | } |
4722 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
4723 | if (has_precis) { |
4724 | if (precis > elen) | |
4725 | zeros = precis - elen; | |
4726 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
4727 | elen = 0; | |
4728 | } | |
46fc3d4c | 4729 | break; |
4730 | ||
4731 | /* FLOATING POINT */ | |
4732 | ||
fc36a67e | 4733 | case 'F': |
4734 | c = 'f'; /* maybe %F isn't supported here */ | |
4735 | /* FALL THROUGH */ | |
46fc3d4c | 4736 | case 'e': case 'E': |
fc36a67e | 4737 | case 'f': |
46fc3d4c | 4738 | case 'g': case 'G': |
4739 | ||
4740 | /* This is evil, but floating point is even more evil */ | |
4741 | ||
fc36a67e | 4742 | if (args) |
4743 | nv = va_arg(*args, double); | |
4744 | else | |
4745 | nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0; | |
4746 | ||
4747 | need = 0; | |
4748 | if (c != 'e' && c != 'E') { | |
4749 | i = PERL_INT_MIN; | |
4750 | (void)frexp(nv, &i); | |
4751 | if (i == PERL_INT_MIN) | |
c635e13b | 4752 | die("panic: frexp"); |
4753 | if (i > 0) | |
fc36a67e | 4754 | need = BIT_DIGITS(i); |
4755 | } | |
4756 | need += has_precis ? precis : 6; /* known default */ | |
4757 | if (need < width) | |
4758 | need = width; | |
4759 | ||
46fc3d4c | 4760 | need += 20; /* fudge factor */ |
4761 | if (efloatsize < need) { | |
4762 | Safefree(efloatbuf); | |
4763 | efloatsize = need + 20; /* more fudge */ | |
4764 | New(906, efloatbuf, efloatsize, char); | |
4765 | } | |
4766 | ||
4767 | eptr = ebuf + sizeof ebuf; | |
4768 | *--eptr = '\0'; | |
4769 | *--eptr = c; | |
4770 | if (has_precis) { | |
4771 | base = precis; | |
4772 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
4773 | *--eptr = '.'; | |
4774 | } | |
4775 | if (width) { | |
4776 | base = width; | |
4777 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
4778 | } | |
4779 | if (fill == '0') | |
4780 | *--eptr = fill; | |
84902520 TB |
4781 | if (left) |
4782 | *--eptr = '-'; | |
46fc3d4c | 4783 | if (plus) |
4784 | *--eptr = plus; | |
4785 | if (alt) | |
4786 | *--eptr = '#'; | |
4787 | *--eptr = '%'; | |
4788 | ||
46fc3d4c | 4789 | (void)sprintf(efloatbuf, eptr, nv); |
4790 | ||
4791 | eptr = efloatbuf; | |
4792 | elen = strlen(efloatbuf); | |
4793 | ||
4794 | #ifdef LC_NUMERIC | |
4795 | /* | |
4796 | * User-defined locales may include arbitrary characters. | |
4797 | * And, unfortunately, some system may alloc the "C" locale | |
4798 | * to be overridden by a malicious user. | |
4799 | */ | |
4800 | if (used_locale) | |
4801 | *used_locale = TRUE; | |
4802 | #endif /* LC_NUMERIC */ | |
4803 | ||
4804 | break; | |
4805 | ||
fc36a67e | 4806 | /* SPECIAL */ |
4807 | ||
4808 | case 'n': | |
4809 | i = SvCUR(sv) - origlen; | |
4810 | if (args) { | |
c635e13b | 4811 | switch (intsize) { |
4812 | case 'h': *(va_arg(*args, short*)) = i; break; | |
4813 | default: *(va_arg(*args, int*)) = i; break; | |
4814 | case 'l': *(va_arg(*args, long*)) = i; break; | |
4815 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
4816 | } | |
fc36a67e | 4817 | } |
4818 | else if (svix < svmax) | |
4819 | sv_setuv(svargs[svix++], (UV)i); | |
4820 | continue; /* not "break" */ | |
4821 | ||
4822 | /* UNKNOWN */ | |
4823 | ||
46fc3d4c | 4824 | default: |
fc36a67e | 4825 | unknown: |
599cee73 | 4826 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 4827 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 4828 | SV *msg = sv_newmortal(); |
4829 | sv_setpvf(msg, "Invalid conversion in %s: ", | |
533c011a | 4830 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
c635e13b | 4831 | if (c) |
4832 | sv_catpvf(msg, isPRINT(c) ? "\"%%%c\"" : "\"%%\\%03o\"", | |
4833 | c & 0xFF); | |
4834 | else | |
4835 | sv_catpv(msg, "end of string"); | |
599cee73 | 4836 | warner(WARN_PRINTF, "%_", msg); /* yes, this is reentrant */ |
c635e13b | 4837 | } |
fb73857a | 4838 | |
4839 | /* output mangled stuff ... */ | |
4840 | if (c == '\0') | |
4841 | --q; | |
46fc3d4c | 4842 | eptr = p; |
4843 | elen = q - p; | |
fb73857a | 4844 | |
4845 | /* ... right here, because formatting flags should not apply */ | |
4846 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
4847 | p = SvEND(sv); | |
4848 | memcpy(p, eptr, elen); | |
4849 | p += elen; | |
4850 | *p = '\0'; | |
4851 | SvCUR(sv) = p - SvPVX(sv); | |
4852 | continue; /* not "break" */ | |
46fc3d4c | 4853 | } |
4854 | ||
fc36a67e | 4855 | have = esignlen + zeros + elen; |
46fc3d4c | 4856 | need = (have > width ? have : width); |
4857 | gap = need - have; | |
4858 | ||
7bc39d62 | 4859 | SvGROW(sv, SvCUR(sv) + need + 1); |
46fc3d4c | 4860 | p = SvEND(sv); |
4861 | if (esignlen && fill == '0') { | |
4862 | for (i = 0; i < esignlen; i++) | |
4863 | *p++ = esignbuf[i]; | |
4864 | } | |
4865 | if (gap && !left) { | |
4866 | memset(p, fill, gap); | |
4867 | p += gap; | |
4868 | } | |
4869 | if (esignlen && fill != '0') { | |
4870 | for (i = 0; i < esignlen; i++) | |
4871 | *p++ = esignbuf[i]; | |
4872 | } | |
fc36a67e | 4873 | if (zeros) { |
4874 | for (i = zeros; i; i--) | |
4875 | *p++ = '0'; | |
4876 | } | |
46fc3d4c | 4877 | if (elen) { |
4878 | memcpy(p, eptr, elen); | |
4879 | p += elen; | |
4880 | } | |
4881 | if (gap && left) { | |
4882 | memset(p, ' ', gap); | |
4883 | p += gap; | |
4884 | } | |
4885 | *p = '\0'; | |
4886 | SvCUR(sv) = p - SvPVX(sv); | |
4887 | } | |
4888 | } |