Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
e6906430 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
583439ab | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e | 9 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
645c22ef DM |
10 | * |
11 | * | |
5e045b90 AMS |
12 | * This file contains the code that creates, manipulates and destroys |
13 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
14 | * structure of an SV, so their creation and destruction is handled | |
15 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
16 | * level functions (eg. substr, split, join) for each of the types are | |
17 | * in the pp*.c files. | |
79072805 LW |
18 | */ |
19 | ||
20 | #include "EXTERN.h" | |
864dbfa3 | 21 | #define PERL_IN_SV_C |
79072805 | 22 | #include "perl.h" |
d2f185dc | 23 | #include "regcomp.h" |
79072805 | 24 | |
51371543 | 25 | #define FCALL *f |
645c22ef | 26 | |
47185da9 NC |
27 | #ifdef __Lynx__ |
28 | /* Missing proto on LynxOS */ | |
29 | char *gconvert(double, int, int, char *); | |
30 | #endif | |
31 | ||
d6218095 JH |
32 | #ifdef PERL_UTF8_CACHE_ASSERT |
33 | /* The cache element 0 is the Unicode offset; | |
34 | * the cache element 1 is the byte offset of the element 0; | |
35 | * the cache element 2 is the Unicode length of the substring; | |
36 | * the cache element 3 is the byte length of the substring; | |
37 | * The checking of the substring side would be good | |
38 | * but substr() has enough code paths to make my head spin; | |
39 | * if adding more checks watch out for the following tests: | |
40 | * t/op/index.t t/op/length.t t/op/pat.t t/op/substr.t | |
41 | * lib/utf8.t lib/Unicode/Collate/t/index.t | |
42 | * --jhi | |
43 | */ | |
44 | #define ASSERT_UTF8_CACHE(cache) \ | |
45 | STMT_START { if (cache) { assert((cache)[0] <= (cache)[1]); } } STMT_END | |
46 | #else | |
47 | #define ASSERT_UTF8_CACHE(cache) NOOP | |
48 | #endif | |
49 | ||
645c22ef DM |
50 | /* ============================================================================ |
51 | ||
52 | =head1 Allocation and deallocation of SVs. | |
53 | ||
5e045b90 AMS |
54 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
55 | av, hv...) contains type and reference count information, as well as a | |
56 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
57 | specific to each type. | |
58 | ||
8298e346 NC |
59 | Normally, this allocation is done using arenas, which by default are |
60 | approximately 4K chunks of memory parcelled up into N heads or bodies. The | |
61 | first slot in each arena is reserved, and is used to hold a link to the next | |
62 | arena. In the case of heads, the unused first slot also contains some flags | |
63 | and a note of the number of slots. Snaked through each arena chain is a | |
5e045b90 | 64 | linked list of free items; when this becomes empty, an extra arena is |
8298e346 | 65 | allocated and divided up into N items which are threaded into the free list. |
645c22ef DM |
66 | |
67 | The following global variables are associated with arenas: | |
68 | ||
69 | PL_sv_arenaroot pointer to list of SV arenas | |
70 | PL_sv_root pointer to list of free SV structures | |
71 | ||
72 | PL_foo_arenaroot pointer to list of foo arenas, | |
73 | PL_foo_root pointer to list of free foo bodies | |
74 | ... for foo in xiv, xnv, xrv, xpv etc. | |
75 | ||
76 | Note that some of the larger and more rarely used body types (eg xpvio) | |
77 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
78 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
79 | with all items individually malloc()ed. In addition, a few SV heads are | |
80 | not allocated from an arena, but are instead directly created as static | |
8298e346 NC |
81 | or auto variables, eg PL_sv_undef. The size of arenas can be changed from |
82 | the default by setting PERL_ARENA_SIZE appropriately at compile time. | |
645c22ef DM |
83 | |
84 | The SV arena serves the secondary purpose of allowing still-live SVs | |
85 | to be located and destroyed during final cleanup. | |
86 | ||
87 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
88 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
89 | to return the SV to the free list with error checking.) new_SV() calls | |
90 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
91 | SVs in the free list have their SvTYPE field set to all ones. | |
92 | ||
93 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
94 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
95 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
96 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
97 | new/del functions remove from, or add to, the appropriate PL_foo_root |
98 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
99 | ||
ff276b08 | 100 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
101 | perl_destruct() to physically free all the arenas allocated since the |
102 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
103 | which is otherwise dealt with in hv.c. | |
104 | ||
105 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
106 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
107 | if threads are enabled. | |
108 | ||
109 | The function visit() scans the SV arenas list, and calls a specified | |
110 | function for each SV it finds which is still live - ie which has an SvTYPE | |
111 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
112 | following functions (specified as [function that calls visit()] / [function | |
113 | called by visit() for each SV]): | |
114 | ||
115 | sv_report_used() / do_report_used() | |
116 | dump all remaining SVs (debugging aid) | |
117 | ||
118 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
119 | Attempt to free all objects pointed to by RVs, | |
120 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
121 | try to do the same for all objects indirectly | |
122 | referenced by typeglobs too. Called once from | |
123 | perl_destruct(), prior to calling sv_clean_all() | |
124 | below. | |
125 | ||
126 | sv_clean_all() / do_clean_all() | |
127 | SvREFCNT_dec(sv) each remaining SV, possibly | |
128 | triggering an sv_free(). It also sets the | |
129 | SVf_BREAK flag on the SV to indicate that the | |
130 | refcnt has been artificially lowered, and thus | |
131 | stopping sv_free() from giving spurious warnings | |
132 | about SVs which unexpectedly have a refcnt | |
133 | of zero. called repeatedly from perl_destruct() | |
134 | until there are no SVs left. | |
135 | ||
136 | =head2 Summary | |
137 | ||
138 | Private API to rest of sv.c | |
139 | ||
140 | new_SV(), del_SV(), | |
141 | ||
142 | new_XIV(), del_XIV(), | |
143 | new_XNV(), del_XNV(), | |
144 | etc | |
145 | ||
146 | Public API: | |
147 | ||
8cf8f3d1 | 148 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() |
645c22ef DM |
149 | |
150 | ||
151 | =cut | |
152 | ||
153 | ============================================================================ */ | |
154 | ||
155 | ||
51371543 | 156 | |
4561caa4 CS |
157 | /* |
158 | * "A time to plant, and a time to uproot what was planted..." | |
159 | */ | |
160 | ||
69ddb3b9 | 161 | |
053fc874 GS |
162 | #define plant_SV(p) \ |
163 | STMT_START { \ | |
164 | SvANY(p) = (void *)PL_sv_root; \ | |
165 | SvFLAGS(p) = SVTYPEMASK; \ | |
166 | PL_sv_root = (p); \ | |
167 | --PL_sv_count; \ | |
168 | } STMT_END | |
a0d0e21e | 169 | |
fba3b22e | 170 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
171 | #define uproot_SV(p) \ |
172 | STMT_START { \ | |
173 | (p) = PL_sv_root; \ | |
174 | PL_sv_root = (SV*)SvANY(p); \ | |
175 | ++PL_sv_count; \ | |
176 | } STMT_END | |
177 | ||
645c22ef | 178 | |
69ddb3b9 NC |
179 | /* make some more SVs by adding another arena */ |
180 | ||
181 | /* sv_mutex must be held while calling more_sv() */ | |
182 | STATIC SV* | |
183 | S_more_sv(pTHX) | |
184 | { | |
185 | SV* sv; | |
186 | ||
187 | if (PL_nice_chunk) { | |
188 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
189 | PL_nice_chunk = Nullch; | |
190 | PL_nice_chunk_size = 0; | |
191 | } | |
192 | else { | |
193 | char *chunk; /* must use New here to match call to */ | |
194 | New(704,chunk,PERL_ARENA_SIZE,char); /* Safefree() in sv_free_arenas() */ | |
195 | sv_add_arena(chunk, PERL_ARENA_SIZE, 0); | |
196 | } | |
197 | uproot_SV(sv); | |
198 | return sv; | |
199 | } | |
200 | ||
645c22ef DM |
201 | /* new_SV(): return a new, empty SV head */ |
202 | ||
c240c76d JH |
203 | #ifdef DEBUG_LEAKING_SCALARS |
204 | /* provide a real function for a debugger to play with */ | |
205 | STATIC SV* | |
206 | S_new_SV(pTHX) | |
207 | { | |
208 | SV* sv; | |
209 | ||
210 | LOCK_SV_MUTEX; | |
211 | if (PL_sv_root) | |
212 | uproot_SV(sv); | |
213 | else | |
69ddb3b9 | 214 | sv = S_more_sv(aTHX); |
c240c76d JH |
215 | UNLOCK_SV_MUTEX; |
216 | SvANY(sv) = 0; | |
217 | SvREFCNT(sv) = 1; | |
218 | SvFLAGS(sv) = 0; | |
219 | return sv; | |
220 | } | |
221 | # define new_SV(p) (p)=S_new_SV(aTHX) | |
222 | ||
223 | #else | |
224 | # define new_SV(p) \ | |
053fc874 GS |
225 | STMT_START { \ |
226 | LOCK_SV_MUTEX; \ | |
227 | if (PL_sv_root) \ | |
228 | uproot_SV(p); \ | |
229 | else \ | |
69ddb3b9 | 230 | (p) = S_more_sv(aTHX); \ |
053fc874 GS |
231 | UNLOCK_SV_MUTEX; \ |
232 | SvANY(p) = 0; \ | |
233 | SvREFCNT(p) = 1; \ | |
234 | SvFLAGS(p) = 0; \ | |
235 | } STMT_END | |
c240c76d | 236 | #endif |
463ee0b2 | 237 | |
645c22ef DM |
238 | |
239 | /* del_SV(): return an empty SV head to the free list */ | |
240 | ||
a0d0e21e | 241 | #ifdef DEBUGGING |
4561caa4 | 242 | |
053fc874 GS |
243 | #define del_SV(p) \ |
244 | STMT_START { \ | |
245 | LOCK_SV_MUTEX; \ | |
aea4f609 | 246 | if (DEBUG_D_TEST) \ |
053fc874 GS |
247 | del_sv(p); \ |
248 | else \ | |
249 | plant_SV(p); \ | |
250 | UNLOCK_SV_MUTEX; \ | |
251 | } STMT_END | |
a0d0e21e | 252 | |
76e3520e | 253 | STATIC void |
cea2e8a9 | 254 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 255 | { |
aea4f609 | 256 | if (DEBUG_D_TEST) { |
4633a7c4 | 257 | SV* sva; |
8c18bf38 | 258 | bool ok = 0; |
3280af22 | 259 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
8c18bf38 AL |
260 | SV *sv = sva + 1; |
261 | SV *svend = &sva[SvREFCNT(sva)]; | |
2a8de9e2 | 262 | if (p >= sv && p < svend) { |
a0d0e21e | 263 | ok = 1; |
2a8de9e2 AL |
264 | break; |
265 | } | |
a0d0e21e LW |
266 | } |
267 | if (!ok) { | |
0453d815 | 268 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 269 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
b035a42e NC |
270 | "Attempt to free non-arena SV: 0x%"UVxf |
271 | pTHX__FORMAT, PTR2UV(p) pTHX__VALUE); | |
a0d0e21e LW |
272 | return; |
273 | } | |
274 | } | |
4561caa4 | 275 | plant_SV(p); |
463ee0b2 | 276 | } |
a0d0e21e | 277 | |
4561caa4 CS |
278 | #else /* ! DEBUGGING */ |
279 | ||
280 | #define del_SV(p) plant_SV(p) | |
281 | ||
282 | #endif /* DEBUGGING */ | |
463ee0b2 | 283 | |
645c22ef DM |
284 | |
285 | /* | |
ccfc67b7 JH |
286 | =head1 SV Manipulation Functions |
287 | ||
645c22ef DM |
288 | =for apidoc sv_add_arena |
289 | ||
290 | Given a chunk of memory, link it to the head of the list of arenas, | |
291 | and split it into a list of free SVs. | |
292 | ||
293 | =cut | |
294 | */ | |
295 | ||
4633a7c4 | 296 | void |
864dbfa3 | 297 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 298 | { |
4633a7c4 | 299 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
300 | register SV* sv; |
301 | register SV* svend; | |
4633a7c4 LW |
302 | |
303 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 304 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
305 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
306 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
307 | ||
3280af22 NIS |
308 | PL_sv_arenaroot = sva; |
309 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
310 | |
311 | svend = &sva[SvREFCNT(sva) - 1]; | |
312 | sv = sva + 1; | |
463ee0b2 | 313 | while (sv < svend) { |
a0d0e21e | 314 | SvANY(sv) = (void *)(SV*)(sv + 1); |
2a8de9e2 | 315 | #ifdef DEBUGGING |
8b3a4b74 | 316 | SvREFCNT(sv) = 0; |
2a8de9e2 AL |
317 | #endif |
318 | /* Must always set typemask because it's awlays checked in on cleanup | |
319 | when the arenas are walked looking for objects. */ | |
8990e307 | 320 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
321 | sv++; |
322 | } | |
323 | SvANY(sv) = 0; | |
2a8de9e2 AL |
324 | #ifdef DEBUGGING |
325 | SvREFCNT(sv) = 0; | |
326 | #endif | |
4633a7c4 LW |
327 | SvFLAGS(sv) = SVTYPEMASK; |
328 | } | |
329 | ||
b035a42e NC |
330 | /* visit(): call the named function for each non-free SV in the arenas |
331 | * whose flags field matches the flags/mask args. */ | |
645c22ef | 332 | |
5226ed68 | 333 | STATIC I32 |
b035a42e | 334 | S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask) |
8990e307 | 335 | { |
4633a7c4 | 336 | SV* sva; |
5226ed68 | 337 | I32 visited = 0; |
8990e307 | 338 | |
3280af22 | 339 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
8c18bf38 AL |
340 | register SV * const svend = &sva[SvREFCNT(sva)]; |
341 | register SV* sv; | |
4561caa4 | 342 | for (sv = sva + 1; sv < svend; ++sv) { |
b035a42e NC |
343 | if (SvTYPE(sv) != SVTYPEMASK |
344 | && (sv->sv_flags & mask) == flags | |
345 | && SvREFCNT(sv)) | |
346 | { | |
acfe0abc | 347 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
348 | ++visited; |
349 | } | |
8990e307 LW |
350 | } |
351 | } | |
5226ed68 | 352 | return visited; |
8990e307 LW |
353 | } |
354 | ||
758a08c3 JH |
355 | #ifdef DEBUGGING |
356 | ||
645c22ef DM |
357 | /* called by sv_report_used() for each live SV */ |
358 | ||
359 | static void | |
acfe0abc | 360 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
361 | { |
362 | if (SvTYPE(sv) != SVTYPEMASK) { | |
363 | PerlIO_printf(Perl_debug_log, "****\n"); | |
364 | sv_dump(sv); | |
365 | } | |
366 | } | |
758a08c3 | 367 | #endif |
645c22ef DM |
368 | |
369 | /* | |
370 | =for apidoc sv_report_used | |
371 | ||
372 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
373 | ||
374 | =cut | |
375 | */ | |
376 | ||
8990e307 | 377 | void |
864dbfa3 | 378 | Perl_sv_report_used(pTHX) |
4561caa4 | 379 | { |
ff270d3a | 380 | #ifdef DEBUGGING |
b035a42e | 381 | visit(do_report_used, 0, 0); |
ff270d3a | 382 | #endif |
4561caa4 CS |
383 | } |
384 | ||
645c22ef DM |
385 | /* called by sv_clean_objs() for each live SV */ |
386 | ||
387 | static void | |
acfe0abc | 388 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
389 | { |
390 | SV* rv; | |
391 | ||
392 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
393 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
394 | if (SvWEAKREF(sv)) { | |
395 | sv_del_backref(sv); | |
396 | SvWEAKREF_off(sv); | |
a8dc4fe8 | 397 | SvRV_set(sv, NULL); |
645c22ef DM |
398 | } else { |
399 | SvROK_off(sv); | |
a8dc4fe8 | 400 | SvRV_set(sv, NULL); |
645c22ef DM |
401 | SvREFCNT_dec(rv); |
402 | } | |
403 | } | |
404 | ||
405 | /* XXX Might want to check arrays, etc. */ | |
406 | } | |
407 | ||
408 | /* called by sv_clean_objs() for each live SV */ | |
409 | ||
410 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
411 | static void | |
acfe0abc | 412 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
413 | { |
414 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
415 | if ( SvOBJECT(GvSV(sv)) || | |
416 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
417 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
418 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
419 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
420 | { | |
421 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
1f26b251 | 422 | SvFLAGS(sv) |= SVf_BREAK; |
645c22ef DM |
423 | SvREFCNT_dec(sv); |
424 | } | |
425 | } | |
426 | } | |
427 | #endif | |
428 | ||
429 | /* | |
430 | =for apidoc sv_clean_objs | |
431 | ||
432 | Attempt to destroy all objects not yet freed | |
433 | ||
434 | =cut | |
435 | */ | |
436 | ||
4561caa4 | 437 | void |
864dbfa3 | 438 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 439 | { |
3280af22 | 440 | PL_in_clean_objs = TRUE; |
b035a42e | 441 | visit(do_clean_objs, SVf_ROK, SVf_ROK); |
4561caa4 | 442 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 443 | /* some barnacles may yet remain, clinging to typeglobs */ |
b035a42e | 444 | visit(do_clean_named_objs, SVt_PVGV, SVTYPEMASK); |
4561caa4 | 445 | #endif |
3280af22 | 446 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
447 | } |
448 | ||
645c22ef DM |
449 | /* called by sv_clean_all() for each live SV */ |
450 | ||
451 | static void | |
acfe0abc | 452 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
453 | { |
454 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
455 | SvFLAGS(sv) |= SVf_BREAK; | |
456 | SvREFCNT_dec(sv); | |
457 | } | |
458 | ||
459 | /* | |
460 | =for apidoc sv_clean_all | |
461 | ||
462 | Decrement the refcnt of each remaining SV, possibly triggering a | |
463 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 464 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
465 | |
466 | =cut | |
467 | */ | |
468 | ||
5226ed68 | 469 | I32 |
864dbfa3 | 470 | Perl_sv_clean_all(pTHX) |
8990e307 | 471 | { |
5226ed68 | 472 | I32 cleaned; |
3280af22 | 473 | PL_in_clean_all = TRUE; |
b035a42e | 474 | cleaned = visit(do_clean_all, 0,0); |
3280af22 | 475 | PL_in_clean_all = FALSE; |
5226ed68 | 476 | return cleaned; |
8990e307 | 477 | } |
463ee0b2 | 478 | |
645c22ef DM |
479 | /* |
480 | =for apidoc sv_free_arenas | |
481 | ||
482 | Deallocate the memory used by all arenas. Note that all the individual SV | |
483 | heads and bodies within the arenas must already have been freed. | |
484 | ||
485 | =cut | |
486 | */ | |
487 | ||
4633a7c4 | 488 | void |
864dbfa3 | 489 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
490 | { |
491 | SV* sva; | |
492 | SV* svanext; | |
612f20c3 | 493 | XPV *arena, *arenanext; |
4633a7c4 LW |
494 | |
495 | /* Free arenas here, but be careful about fake ones. (We assume | |
496 | contiguity of the fake ones with the corresponding real ones.) */ | |
497 | ||
3280af22 | 498 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
499 | svanext = (SV*) SvANY(sva); |
500 | while (svanext && SvFAKE(svanext)) | |
501 | svanext = (SV*) SvANY(svanext); | |
502 | ||
503 | if (!SvFAKE(sva)) | |
228fe6e6 | 504 | Safefree(sva); |
4633a7c4 | 505 | } |
5f05dabc | 506 | |
612f20c3 GS |
507 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
508 | arenanext = (XPV*)arena->xpv_pv; | |
509 | Safefree(arena); | |
510 | } | |
511 | PL_xiv_arenaroot = 0; | |
d5aea225 | 512 | PL_xiv_root = 0; |
612f20c3 GS |
513 | |
514 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
515 | arenanext = (XPV*)arena->xpv_pv; | |
516 | Safefree(arena); | |
517 | } | |
518 | PL_xnv_arenaroot = 0; | |
d5aea225 | 519 | PL_xnv_root = 0; |
612f20c3 GS |
520 | |
521 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
522 | arenanext = (XPV*)arena->xpv_pv; | |
523 | Safefree(arena); | |
524 | } | |
525 | PL_xrv_arenaroot = 0; | |
d5aea225 | 526 | PL_xrv_root = 0; |
612f20c3 GS |
527 | |
528 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
529 | arenanext = (XPV*)arena->xpv_pv; | |
530 | Safefree(arena); | |
531 | } | |
532 | PL_xpv_arenaroot = 0; | |
d5aea225 | 533 | PL_xpv_root = 0; |
612f20c3 GS |
534 | |
535 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
536 | arenanext = (XPV*)arena->xpv_pv; | |
537 | Safefree(arena); | |
538 | } | |
539 | PL_xpviv_arenaroot = 0; | |
d5aea225 | 540 | PL_xpviv_root = 0; |
612f20c3 GS |
541 | |
542 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
543 | arenanext = (XPV*)arena->xpv_pv; | |
544 | Safefree(arena); | |
545 | } | |
546 | PL_xpvnv_arenaroot = 0; | |
d5aea225 | 547 | PL_xpvnv_root = 0; |
612f20c3 GS |
548 | |
549 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
550 | arenanext = (XPV*)arena->xpv_pv; | |
551 | Safefree(arena); | |
552 | } | |
553 | PL_xpvcv_arenaroot = 0; | |
d5aea225 | 554 | PL_xpvcv_root = 0; |
612f20c3 GS |
555 | |
556 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
557 | arenanext = (XPV*)arena->xpv_pv; | |
558 | Safefree(arena); | |
559 | } | |
560 | PL_xpvav_arenaroot = 0; | |
d5aea225 | 561 | PL_xpvav_root = 0; |
612f20c3 GS |
562 | |
563 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
564 | arenanext = (XPV*)arena->xpv_pv; | |
565 | Safefree(arena); | |
566 | } | |
567 | PL_xpvhv_arenaroot = 0; | |
d5aea225 | 568 | PL_xpvhv_root = 0; |
612f20c3 GS |
569 | |
570 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
571 | arenanext = (XPV*)arena->xpv_pv; | |
572 | Safefree(arena); | |
573 | } | |
574 | PL_xpvmg_arenaroot = 0; | |
d5aea225 | 575 | PL_xpvmg_root = 0; |
612f20c3 | 576 | |
69ddb3b9 NC |
577 | for (arena = (XPV*)PL_xpvgv_arenaroot; arena; arena = arenanext) { |
578 | arenanext = (XPV*)arena->xpv_pv; | |
579 | Safefree(arena); | |
580 | } | |
581 | PL_xpvgv_arenaroot = 0; | |
582 | PL_xpvgv_root = 0; | |
583 | ||
612f20c3 GS |
584 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { |
585 | arenanext = (XPV*)arena->xpv_pv; | |
586 | Safefree(arena); | |
587 | } | |
588 | PL_xpvlv_arenaroot = 0; | |
d5aea225 | 589 | PL_xpvlv_root = 0; |
612f20c3 GS |
590 | |
591 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
592 | arenanext = (XPV*)arena->xpv_pv; | |
593 | Safefree(arena); | |
594 | } | |
595 | PL_xpvbm_arenaroot = 0; | |
d5aea225 | 596 | PL_xpvbm_root = 0; |
612f20c3 GS |
597 | |
598 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
599 | arenanext = (XPV*)arena->xpv_pv; | |
600 | Safefree(arena); | |
601 | } | |
602 | PL_he_arenaroot = 0; | |
d5aea225 | 603 | PL_he_root = 0; |
612f20c3 | 604 | |
72c9d3b6 NC |
605 | #if defined(USE_ITHREADS) |
606 | for (arena = (XPV*)PL_pte_arenaroot; arena; arena = arenanext) { | |
607 | arenanext = (XPV*)arena->xpv_pv; | |
608 | Safefree(arena); | |
609 | } | |
610 | PL_pte_arenaroot = 0; | |
611 | PL_pte_root = 0; | |
612 | #endif | |
613 | ||
3280af22 NIS |
614 | if (PL_nice_chunk) |
615 | Safefree(PL_nice_chunk); | |
616 | PL_nice_chunk = Nullch; | |
617 | PL_nice_chunk_size = 0; | |
618 | PL_sv_arenaroot = 0; | |
619 | PL_sv_root = 0; | |
4633a7c4 LW |
620 | } |
621 | ||
645c22ef DM |
622 | /* |
623 | =for apidoc report_uninit | |
624 | ||
625 | Print appropriate "Use of uninitialized variable" warning | |
626 | ||
627 | =cut | |
628 | */ | |
629 | ||
1d7c1841 GS |
630 | void |
631 | Perl_report_uninit(pTHX) | |
632 | { | |
633 | if (PL_op) | |
9014280d | 634 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
53e06cf0 | 635 | " in ", OP_DESC(PL_op)); |
1d7c1841 | 636 | else |
9014280d | 637 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, "", ""); |
1d7c1841 GS |
638 | } |
639 | ||
645c22ef | 640 | |
69ddb3b9 | 641 | /* allocate another arena's worth of struct xrv */ |
645c22ef | 642 | |
76e3520e | 643 | STATIC void |
69ddb3b9 | 644 | S_more_xrv(pTHX) |
463ee0b2 | 645 | { |
69ddb3b9 NC |
646 | XRV* xrv; |
647 | XRV* xrvend; | |
648 | XPV *ptr; | |
649 | New(712, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
650 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
651 | PL_xrv_arenaroot = ptr; | |
652 | ||
653 | xrv = (XRV*) ptr; | |
654 | xrvend = &xrv[PERL_ARENA_SIZE / sizeof(XRV) - 1]; | |
655 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; | |
656 | PL_xrv_root = xrv; | |
657 | while (xrv < xrvend) { | |
658 | xrv->xrv_rv = (SV*)(xrv + 1); | |
659 | xrv++; | |
660 | } | |
661 | xrv->xrv_rv = 0; | |
463ee0b2 LW |
662 | } |
663 | ||
645c22ef DM |
664 | /* allocate another arena's worth of IV bodies */ |
665 | ||
cbe51380 | 666 | STATIC void |
cea2e8a9 | 667 | S_more_xiv(pTHX) |
463ee0b2 | 668 | { |
69ddb3b9 NC |
669 | IV* xiv; |
670 | IV* xivend; | |
8c52afec | 671 | XPV* ptr; |
72c9d3b6 | 672 | New(705, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); |
645c22ef | 673 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 674 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 675 | |
ea7c11a3 | 676 | xiv = (IV*) ptr; |
72c9d3b6 | 677 | xivend = &xiv[PERL_ARENA_SIZE / sizeof(IV) - 1]; |
645c22ef | 678 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 679 | PL_xiv_root = xiv; |
463ee0b2 | 680 | while (xiv < xivend) { |
ea7c11a3 | 681 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
682 | xiv++; |
683 | } | |
ea7c11a3 | 684 | *(IV**)xiv = 0; |
463ee0b2 LW |
685 | } |
686 | ||
69ddb3b9 | 687 | /* allocate another arena's worth of NV bodies */ |
645c22ef | 688 | |
69ddb3b9 NC |
689 | STATIC void |
690 | S_more_xnv(pTHX) | |
463ee0b2 | 691 | { |
65202027 | 692 | NV* xnv; |
69ddb3b9 NC |
693 | NV* xnvend; |
694 | XPV *ptr; | |
695 | New(711, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
696 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
697 | PL_xnv_arenaroot = ptr; | |
698 | ||
699 | xnv = (NV*) ptr; | |
700 | xnvend = &xnv[PERL_ARENA_SIZE / sizeof(NV) - 1]; | |
701 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
702 | PL_xnv_root = xnv; | |
703 | while (xnv < xnvend) { | |
704 | *(NV**)xnv = (NV*)(xnv + 1); | |
705 | xnv++; | |
706 | } | |
707 | *(NV**)xnv = 0; | |
463ee0b2 LW |
708 | } |
709 | ||
69ddb3b9 | 710 | /* allocate another arena's worth of struct xpv */ |
645c22ef | 711 | |
76e3520e | 712 | STATIC void |
69ddb3b9 | 713 | S_more_xpv(pTHX) |
463ee0b2 | 714 | { |
69ddb3b9 NC |
715 | XPV* xpv; |
716 | XPV* xpvend; | |
717 | New(713, xpv, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
718 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
719 | PL_xpv_arenaroot = xpv; | |
720 | ||
721 | xpvend = &xpv[PERL_ARENA_SIZE / sizeof(XPV) - 1]; | |
722 | PL_xpv_root = ++xpv; | |
723 | while (xpv < xpvend) { | |
724 | xpv->xpv_pv = (char*)(xpv + 1); | |
725 | xpv++; | |
726 | } | |
727 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
728 | } |
729 | ||
69ddb3b9 | 730 | /* allocate another arena's worth of struct xpviv */ |
645c22ef | 731 | |
cbe51380 | 732 | STATIC void |
69ddb3b9 | 733 | S_more_xpviv(pTHX) |
463ee0b2 | 734 | { |
69ddb3b9 NC |
735 | XPVIV* xpviv; |
736 | XPVIV* xpvivend; | |
737 | New(714, xpviv, PERL_ARENA_SIZE/sizeof(XPVIV), XPVIV); | |
738 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
739 | PL_xpviv_arenaroot = xpviv; | |
740 | ||
741 | xpvivend = &xpviv[PERL_ARENA_SIZE / sizeof(XPVIV) - 1]; | |
742 | PL_xpviv_root = ++xpviv; | |
743 | while (xpviv < xpvivend) { | |
744 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
745 | xpviv++; | |
746 | } | |
747 | xpviv->xpv_pv = 0; | |
748 | } | |
749 | ||
750 | /* allocate another arena's worth of struct xpvnv */ | |
751 | ||
752 | STATIC void | |
753 | S_more_xpvnv(pTHX) | |
754 | { | |
755 | XPVNV* xpvnv; | |
756 | XPVNV* xpvnvend; | |
757 | New(715, xpvnv, PERL_ARENA_SIZE/sizeof(XPVNV), XPVNV); | |
758 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
759 | PL_xpvnv_arenaroot = xpvnv; | |
760 | ||
761 | xpvnvend = &xpvnv[PERL_ARENA_SIZE / sizeof(XPVNV) - 1]; | |
762 | PL_xpvnv_root = ++xpvnv; | |
763 | while (xpvnv < xpvnvend) { | |
764 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
765 | xpvnv++; | |
766 | } | |
767 | xpvnv->xpv_pv = 0; | |
768 | } | |
769 | ||
770 | /* allocate another arena's worth of struct xpvcv */ | |
771 | ||
772 | STATIC void | |
773 | S_more_xpvcv(pTHX) | |
774 | { | |
775 | XPVCV* xpvcv; | |
776 | XPVCV* xpvcvend; | |
777 | New(716, xpvcv, PERL_ARENA_SIZE/sizeof(XPVCV), XPVCV); | |
778 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
779 | PL_xpvcv_arenaroot = xpvcv; | |
780 | ||
781 | xpvcvend = &xpvcv[PERL_ARENA_SIZE / sizeof(XPVCV) - 1]; | |
782 | PL_xpvcv_root = ++xpvcv; | |
783 | while (xpvcv < xpvcvend) { | |
784 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
785 | xpvcv++; | |
786 | } | |
787 | xpvcv->xpv_pv = 0; | |
788 | } | |
789 | ||
790 | /* allocate another arena's worth of struct xpvav */ | |
791 | ||
792 | STATIC void | |
793 | S_more_xpvav(pTHX) | |
794 | { | |
795 | XPVAV* xpvav; | |
796 | XPVAV* xpvavend; | |
797 | New(717, xpvav, PERL_ARENA_SIZE/sizeof(XPVAV), XPVAV); | |
798 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
799 | PL_xpvav_arenaroot = xpvav; | |
800 | ||
801 | xpvavend = &xpvav[PERL_ARENA_SIZE / sizeof(XPVAV) - 1]; | |
802 | PL_xpvav_root = ++xpvav; | |
803 | while (xpvav < xpvavend) { | |
804 | xpvav->xav_array = (char*)(xpvav + 1); | |
805 | xpvav++; | |
806 | } | |
807 | xpvav->xav_array = 0; | |
808 | } | |
809 | ||
810 | /* allocate another arena's worth of struct xpvhv */ | |
811 | ||
812 | STATIC void | |
813 | S_more_xpvhv(pTHX) | |
814 | { | |
815 | XPVHV* xpvhv; | |
816 | XPVHV* xpvhvend; | |
817 | New(718, xpvhv, PERL_ARENA_SIZE/sizeof(XPVHV), XPVHV); | |
818 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
819 | PL_xpvhv_arenaroot = xpvhv; | |
820 | ||
821 | xpvhvend = &xpvhv[PERL_ARENA_SIZE / sizeof(XPVHV) - 1]; | |
822 | PL_xpvhv_root = ++xpvhv; | |
823 | while (xpvhv < xpvhvend) { | |
824 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
825 | xpvhv++; | |
826 | } | |
827 | xpvhv->xhv_array = 0; | |
828 | } | |
829 | ||
830 | /* allocate another arena's worth of struct xpvmg */ | |
831 | ||
832 | STATIC void | |
833 | S_more_xpvmg(pTHX) | |
834 | { | |
835 | XPVMG* xpvmg; | |
836 | XPVMG* xpvmgend; | |
837 | New(719, xpvmg, PERL_ARENA_SIZE/sizeof(XPVMG), XPVMG); | |
838 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
839 | PL_xpvmg_arenaroot = xpvmg; | |
840 | ||
841 | xpvmgend = &xpvmg[PERL_ARENA_SIZE / sizeof(XPVMG) - 1]; | |
842 | PL_xpvmg_root = ++xpvmg; | |
843 | while (xpvmg < xpvmgend) { | |
844 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
845 | xpvmg++; | |
846 | } | |
847 | xpvmg->xpv_pv = 0; | |
848 | } | |
849 | ||
850 | /* allocate another arena's worth of struct xpvgv */ | |
851 | ||
852 | STATIC void | |
853 | S_more_xpvgv(pTHX) | |
854 | { | |
855 | XPVGV* xpvgv; | |
856 | XPVGV* xpvgvend; | |
857 | New(720, xpvgv, PERL_ARENA_SIZE/sizeof(XPVGV), XPVGV); | |
858 | xpvgv->xpv_pv = (char*)PL_xpvgv_arenaroot; | |
859 | PL_xpvgv_arenaroot = xpvgv; | |
860 | ||
861 | xpvgvend = &xpvgv[PERL_ARENA_SIZE / sizeof(XPVGV) - 1]; | |
862 | PL_xpvgv_root = ++xpvgv; | |
863 | while (xpvgv < xpvgvend) { | |
864 | xpvgv->xpv_pv = (char*)(xpvgv + 1); | |
865 | xpvgv++; | |
866 | } | |
867 | xpvgv->xpv_pv = 0; | |
868 | } | |
869 | ||
870 | /* allocate another arena's worth of struct xpvlv */ | |
871 | ||
872 | STATIC void | |
873 | S_more_xpvlv(pTHX) | |
874 | { | |
875 | XPVLV* xpvlv; | |
876 | XPVLV* xpvlvend; | |
877 | New(720, xpvlv, PERL_ARENA_SIZE/sizeof(XPVLV), XPVLV); | |
878 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
879 | PL_xpvlv_arenaroot = xpvlv; | |
880 | ||
881 | xpvlvend = &xpvlv[PERL_ARENA_SIZE / sizeof(XPVLV) - 1]; | |
882 | PL_xpvlv_root = ++xpvlv; | |
883 | while (xpvlv < xpvlvend) { | |
884 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
885 | xpvlv++; | |
886 | } | |
887 | xpvlv->xpv_pv = 0; | |
888 | } | |
889 | ||
890 | /* allocate another arena's worth of struct xpvbm */ | |
891 | ||
892 | STATIC void | |
893 | S_more_xpvbm(pTHX) | |
894 | { | |
895 | XPVBM* xpvbm; | |
896 | XPVBM* xpvbmend; | |
897 | New(721, xpvbm, PERL_ARENA_SIZE/sizeof(XPVBM), XPVBM); | |
898 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
899 | PL_xpvbm_arenaroot = xpvbm; | |
612f20c3 | 900 | |
69ddb3b9 NC |
901 | xpvbmend = &xpvbm[PERL_ARENA_SIZE / sizeof(XPVBM) - 1]; |
902 | PL_xpvbm_root = ++xpvbm; | |
903 | while (xpvbm < xpvbmend) { | |
904 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
905 | xpvbm++; | |
463ee0b2 | 906 | } |
69ddb3b9 | 907 | xpvbm->xpv_pv = 0; |
463ee0b2 LW |
908 | } |
909 | ||
645c22ef DM |
910 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
911 | ||
76e3520e | 912 | STATIC XRV* |
cea2e8a9 | 913 | S_new_xrv(pTHX) |
ed6116ce LW |
914 | { |
915 | XRV* xrv; | |
cbe51380 GS |
916 | LOCK_SV_MUTEX; |
917 | if (!PL_xrv_root) | |
69ddb3b9 | 918 | S_more_xrv(aTHX); |
cbe51380 GS |
919 | xrv = PL_xrv_root; |
920 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
921 | UNLOCK_SV_MUTEX; | |
922 | return xrv; | |
ed6116ce LW |
923 | } |
924 | ||
645c22ef DM |
925 | /* return a struct xrv to the free list */ |
926 | ||
76e3520e | 927 | STATIC void |
cea2e8a9 | 928 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 929 | { |
cbe51380 | 930 | LOCK_SV_MUTEX; |
3280af22 NIS |
931 | p->xrv_rv = (SV*)PL_xrv_root; |
932 | PL_xrv_root = p; | |
cbe51380 | 933 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
934 | } |
935 | ||
69ddb3b9 NC |
936 | /* grab a new IV body from the free list, allocating more if necessary */ |
937 | ||
938 | STATIC XPVIV* | |
939 | S_new_xiv(pTHX) | |
940 | { | |
941 | IV* xiv; | |
942 | LOCK_SV_MUTEX; | |
943 | if (!PL_xiv_root) | |
944 | S_more_xiv(aTHX); | |
945 | xiv = PL_xiv_root; | |
946 | /* | |
947 | * See comment in more_xiv() -- RAM. | |
948 | */ | |
949 | PL_xiv_root = *(IV**)xiv; | |
950 | UNLOCK_SV_MUTEX; | |
951 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
952 | } | |
953 | ||
954 | /* return an IV body to the free list */ | |
645c22ef | 955 | |
cbe51380 | 956 | STATIC void |
69ddb3b9 | 957 | S_del_xiv(pTHX_ XPVIV *p) |
ed6116ce | 958 | { |
69ddb3b9 NC |
959 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
960 | LOCK_SV_MUTEX; | |
961 | *(IV**)xiv = PL_xiv_root; | |
962 | PL_xiv_root = xiv; | |
963 | UNLOCK_SV_MUTEX; | |
964 | } | |
612f20c3 | 965 | |
69ddb3b9 NC |
966 | /* grab a new NV body from the free list, allocating more if necessary */ |
967 | ||
968 | STATIC XPVNV* | |
969 | S_new_xnv(pTHX) | |
970 | { | |
971 | NV* xnv; | |
972 | LOCK_SV_MUTEX; | |
973 | if (!PL_xnv_root) | |
974 | S_more_xnv(aTHX); | |
975 | xnv = PL_xnv_root; | |
976 | PL_xnv_root = *(NV**)xnv; | |
977 | UNLOCK_SV_MUTEX; | |
978 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
979 | } | |
980 | ||
981 | /* return an NV body to the free list */ | |
982 | ||
983 | STATIC void | |
984 | S_del_xnv(pTHX_ XPVNV *p) | |
985 | { | |
986 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); | |
987 | LOCK_SV_MUTEX; | |
988 | *(NV**)xnv = PL_xnv_root; | |
989 | PL_xnv_root = xnv; | |
990 | UNLOCK_SV_MUTEX; | |
ed6116ce LW |
991 | } |
992 | ||
645c22ef DM |
993 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
994 | ||
76e3520e | 995 | STATIC XPV* |
cea2e8a9 | 996 | S_new_xpv(pTHX) |
463ee0b2 LW |
997 | { |
998 | XPV* xpv; | |
cbe51380 GS |
999 | LOCK_SV_MUTEX; |
1000 | if (!PL_xpv_root) | |
69ddb3b9 | 1001 | S_more_xpv(aTHX); |
cbe51380 GS |
1002 | xpv = PL_xpv_root; |
1003 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
1004 | UNLOCK_SV_MUTEX; | |
1005 | return xpv; | |
463ee0b2 LW |
1006 | } |
1007 | ||
645c22ef DM |
1008 | /* return a struct xpv to the free list */ |
1009 | ||
76e3520e | 1010 | STATIC void |
cea2e8a9 | 1011 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 1012 | { |
cbe51380 | 1013 | LOCK_SV_MUTEX; |
3280af22 NIS |
1014 | p->xpv_pv = (char*)PL_xpv_root; |
1015 | PL_xpv_root = p; | |
cbe51380 | 1016 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
1017 | } |
1018 | ||
645c22ef DM |
1019 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
1020 | ||
932e9ff9 VB |
1021 | STATIC XPVIV* |
1022 | S_new_xpviv(pTHX) | |
1023 | { | |
1024 | XPVIV* xpviv; | |
1025 | LOCK_SV_MUTEX; | |
1026 | if (!PL_xpviv_root) | |
69ddb3b9 | 1027 | S_more_xpviv(aTHX); |
932e9ff9 VB |
1028 | xpviv = PL_xpviv_root; |
1029 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
1030 | UNLOCK_SV_MUTEX; | |
1031 | return xpviv; | |
1032 | } | |
1033 | ||
645c22ef DM |
1034 | /* return a struct xpviv to the free list */ |
1035 | ||
932e9ff9 VB |
1036 | STATIC void |
1037 | S_del_xpviv(pTHX_ XPVIV *p) | |
1038 | { | |
1039 | LOCK_SV_MUTEX; | |
1040 | p->xpv_pv = (char*)PL_xpviv_root; | |
1041 | PL_xpviv_root = p; | |
1042 | UNLOCK_SV_MUTEX; | |
1043 | } | |
1044 | ||
645c22ef DM |
1045 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
1046 | ||
932e9ff9 VB |
1047 | STATIC XPVNV* |
1048 | S_new_xpvnv(pTHX) | |
1049 | { | |
1050 | XPVNV* xpvnv; | |
1051 | LOCK_SV_MUTEX; | |
1052 | if (!PL_xpvnv_root) | |
69ddb3b9 | 1053 | S_more_xpvnv(aTHX); |
932e9ff9 VB |
1054 | xpvnv = PL_xpvnv_root; |
1055 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
1056 | UNLOCK_SV_MUTEX; | |
1057 | return xpvnv; | |
1058 | } | |
1059 | ||
645c22ef DM |
1060 | /* return a struct xpvnv to the free list */ |
1061 | ||
932e9ff9 VB |
1062 | STATIC void |
1063 | S_del_xpvnv(pTHX_ XPVNV *p) | |
1064 | { | |
1065 | LOCK_SV_MUTEX; | |
1066 | p->xpv_pv = (char*)PL_xpvnv_root; | |
1067 | PL_xpvnv_root = p; | |
1068 | UNLOCK_SV_MUTEX; | |
1069 | } | |
1070 | ||
645c22ef DM |
1071 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
1072 | ||
932e9ff9 VB |
1073 | STATIC XPVCV* |
1074 | S_new_xpvcv(pTHX) | |
1075 | { | |
1076 | XPVCV* xpvcv; | |
1077 | LOCK_SV_MUTEX; | |
1078 | if (!PL_xpvcv_root) | |
69ddb3b9 | 1079 | S_more_xpvcv(aTHX); |
932e9ff9 VB |
1080 | xpvcv = PL_xpvcv_root; |
1081 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
1082 | UNLOCK_SV_MUTEX; | |
1083 | return xpvcv; | |
1084 | } | |
1085 | ||
645c22ef DM |
1086 | /* return a struct xpvcv to the free list */ |
1087 | ||
932e9ff9 VB |
1088 | STATIC void |
1089 | S_del_xpvcv(pTHX_ XPVCV *p) | |
1090 | { | |
1091 | LOCK_SV_MUTEX; | |
1092 | p->xpv_pv = (char*)PL_xpvcv_root; | |
1093 | PL_xpvcv_root = p; | |
1094 | UNLOCK_SV_MUTEX; | |
1095 | } | |
1096 | ||
645c22ef DM |
1097 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
1098 | ||
932e9ff9 VB |
1099 | STATIC XPVAV* |
1100 | S_new_xpvav(pTHX) | |
1101 | { | |
1102 | XPVAV* xpvav; | |
1103 | LOCK_SV_MUTEX; | |
1104 | if (!PL_xpvav_root) | |
69ddb3b9 | 1105 | S_more_xpvav(aTHX); |
932e9ff9 VB |
1106 | xpvav = PL_xpvav_root; |
1107 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
1108 | UNLOCK_SV_MUTEX; | |
1109 | return xpvav; | |
1110 | } | |
1111 | ||
645c22ef DM |
1112 | /* return a struct xpvav to the free list */ |
1113 | ||
932e9ff9 VB |
1114 | STATIC void |
1115 | S_del_xpvav(pTHX_ XPVAV *p) | |
1116 | { | |
1117 | LOCK_SV_MUTEX; | |
1118 | p->xav_array = (char*)PL_xpvav_root; | |
1119 | PL_xpvav_root = p; | |
1120 | UNLOCK_SV_MUTEX; | |
1121 | } | |
1122 | ||
645c22ef DM |
1123 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
1124 | ||
932e9ff9 VB |
1125 | STATIC XPVHV* |
1126 | S_new_xpvhv(pTHX) | |
1127 | { | |
1128 | XPVHV* xpvhv; | |
1129 | LOCK_SV_MUTEX; | |
1130 | if (!PL_xpvhv_root) | |
69ddb3b9 | 1131 | S_more_xpvhv(aTHX); |
932e9ff9 VB |
1132 | xpvhv = PL_xpvhv_root; |
1133 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
1134 | UNLOCK_SV_MUTEX; | |
1135 | return xpvhv; | |
1136 | } | |
1137 | ||
645c22ef DM |
1138 | /* return a struct xpvhv to the free list */ |
1139 | ||
932e9ff9 VB |
1140 | STATIC void |
1141 | S_del_xpvhv(pTHX_ XPVHV *p) | |
1142 | { | |
1143 | LOCK_SV_MUTEX; | |
1144 | p->xhv_array = (char*)PL_xpvhv_root; | |
1145 | PL_xpvhv_root = p; | |
1146 | UNLOCK_SV_MUTEX; | |
1147 | } | |
1148 | ||
645c22ef DM |
1149 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
1150 | ||
932e9ff9 VB |
1151 | STATIC XPVMG* |
1152 | S_new_xpvmg(pTHX) | |
1153 | { | |
1154 | XPVMG* xpvmg; | |
1155 | LOCK_SV_MUTEX; | |
1156 | if (!PL_xpvmg_root) | |
69ddb3b9 | 1157 | S_more_xpvmg(aTHX); |
932e9ff9 VB |
1158 | xpvmg = PL_xpvmg_root; |
1159 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
1160 | UNLOCK_SV_MUTEX; | |
1161 | return xpvmg; | |
1162 | } | |
1163 | ||
645c22ef DM |
1164 | /* return a struct xpvmg to the free list */ |
1165 | ||
932e9ff9 VB |
1166 | STATIC void |
1167 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1168 | { | |
1169 | LOCK_SV_MUTEX; | |
1170 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1171 | PL_xpvmg_root = p; | |
1172 | UNLOCK_SV_MUTEX; | |
1173 | } | |
1174 | ||
69ddb3b9 | 1175 | /* grab a new struct xpvgv from the free list, allocating more if necessary */ |
645c22ef | 1176 | |
69ddb3b9 NC |
1177 | STATIC XPVGV* |
1178 | S_new_xpvgv(pTHX) | |
932e9ff9 | 1179 | { |
69ddb3b9 NC |
1180 | XPVGV* xpvgv; |
1181 | LOCK_SV_MUTEX; | |
1182 | if (!PL_xpvgv_root) | |
1183 | S_more_xpvgv(aTHX); | |
1184 | xpvgv = PL_xpvgv_root; | |
1185 | PL_xpvgv_root = (XPVGV*)xpvgv->xpv_pv; | |
1186 | UNLOCK_SV_MUTEX; | |
1187 | return xpvgv; | |
1188 | } | |
612f20c3 | 1189 | |
69ddb3b9 NC |
1190 | /* return a struct xpvgv to the free list */ |
1191 | ||
1192 | STATIC void | |
1193 | S_del_xpvgv(pTHX_ XPVGV *p) | |
1194 | { | |
1195 | LOCK_SV_MUTEX; | |
1196 | p->xpv_pv = (char*)PL_xpvgv_root; | |
1197 | PL_xpvgv_root = p; | |
1198 | UNLOCK_SV_MUTEX; | |
932e9ff9 VB |
1199 | } |
1200 | ||
645c22ef DM |
1201 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1202 | ||
932e9ff9 VB |
1203 | STATIC XPVLV* |
1204 | S_new_xpvlv(pTHX) | |
1205 | { | |
1206 | XPVLV* xpvlv; | |
1207 | LOCK_SV_MUTEX; | |
1208 | if (!PL_xpvlv_root) | |
69ddb3b9 | 1209 | S_more_xpvlv(aTHX); |
932e9ff9 VB |
1210 | xpvlv = PL_xpvlv_root; |
1211 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1212 | UNLOCK_SV_MUTEX; | |
1213 | return xpvlv; | |
1214 | } | |
1215 | ||
645c22ef DM |
1216 | /* return a struct xpvlv to the free list */ |
1217 | ||
932e9ff9 VB |
1218 | STATIC void |
1219 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1220 | { | |
1221 | LOCK_SV_MUTEX; | |
1222 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1223 | PL_xpvlv_root = p; | |
1224 | UNLOCK_SV_MUTEX; | |
1225 | } | |
1226 | ||
645c22ef DM |
1227 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1228 | ||
932e9ff9 VB |
1229 | STATIC XPVBM* |
1230 | S_new_xpvbm(pTHX) | |
1231 | { | |
1232 | XPVBM* xpvbm; | |
1233 | LOCK_SV_MUTEX; | |
1234 | if (!PL_xpvbm_root) | |
69ddb3b9 | 1235 | S_more_xpvbm(aTHX); |
932e9ff9 VB |
1236 | xpvbm = PL_xpvbm_root; |
1237 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1238 | UNLOCK_SV_MUTEX; | |
1239 | return xpvbm; | |
1240 | } | |
1241 | ||
645c22ef DM |
1242 | /* return a struct xpvbm to the free list */ |
1243 | ||
932e9ff9 VB |
1244 | STATIC void |
1245 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1246 | { | |
1247 | LOCK_SV_MUTEX; | |
1248 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1249 | PL_xpvbm_root = p; | |
1250 | UNLOCK_SV_MUTEX; | |
1251 | } | |
1252 | ||
2fe0f101 JH |
1253 | #define my_safemalloc(s) (void*)safemalloc(s) |
1254 | #define my_safefree(p) safefree((char*)p) | |
463ee0b2 | 1255 | |
d33b2eba | 1256 | #ifdef PURIFY |
463ee0b2 | 1257 | |
d33b2eba GS |
1258 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1259 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1260 | |
d33b2eba GS |
1261 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1262 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1263 | |
d33b2eba GS |
1264 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1265 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1266 | |
d33b2eba GS |
1267 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1268 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1269 | |
d33b2eba GS |
1270 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1271 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1272 | |
d33b2eba GS |
1273 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1274 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1275 | |
d33b2eba GS |
1276 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1277 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1278 | |
d33b2eba GS |
1279 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1280 | #define del_XPVAV(p) my_safefree(p) | |
1281 | ||
1282 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1283 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1284 | |
d33b2eba GS |
1285 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1286 | #define del_XPVMG(p) my_safefree(p) | |
1287 | ||
69ddb3b9 NC |
1288 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1289 | #define del_XPVGV(p) my_safefree(p) | |
1290 | ||
d33b2eba GS |
1291 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) |
1292 | #define del_XPVLV(p) my_safefree(p) | |
1293 | ||
1294 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1295 | #define del_XPVBM(p) my_safefree(p) | |
1296 | ||
1297 | #else /* !PURIFY */ | |
1298 | ||
1299 | #define new_XIV() (void*)new_xiv() | |
1300 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1301 | ||
1302 | #define new_XNV() (void*)new_xnv() | |
1303 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1304 | |
d33b2eba GS |
1305 | #define new_XRV() (void*)new_xrv() |
1306 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1307 | |
d33b2eba GS |
1308 | #define new_XPV() (void*)new_xpv() |
1309 | #define del_XPV(p) del_xpv((XPV *)p) | |
1310 | ||
1311 | #define new_XPVIV() (void*)new_xpviv() | |
1312 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1313 | ||
1314 | #define new_XPVNV() (void*)new_xpvnv() | |
1315 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1316 | ||
1317 | #define new_XPVCV() (void*)new_xpvcv() | |
1318 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1319 | ||
1320 | #define new_XPVAV() (void*)new_xpvav() | |
1321 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1322 | ||
1323 | #define new_XPVHV() (void*)new_xpvhv() | |
1324 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1325 | |
d33b2eba GS |
1326 | #define new_XPVMG() (void*)new_xpvmg() |
1327 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1328 | ||
69ddb3b9 NC |
1329 | #define new_XPVGV() (void*)new_xpvgv() |
1330 | #define del_XPVGV(p) del_xpvgv((XPVGV *)p) | |
1331 | ||
d33b2eba GS |
1332 | #define new_XPVLV() (void*)new_xpvlv() |
1333 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1334 | ||
1335 | #define new_XPVBM() (void*)new_xpvbm() | |
1336 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1337 | ||
1338 | #endif /* PURIFY */ | |
9b94d1dd | 1339 | |
d33b2eba GS |
1340 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1341 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1342 | |
d33b2eba GS |
1343 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1344 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1345 | |
954c1994 GS |
1346 | /* |
1347 | =for apidoc sv_upgrade | |
1348 | ||
ff276b08 | 1349 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1350 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1351 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1352 | |
1353 | =cut | |
1354 | */ | |
1355 | ||
79072805 | 1356 | bool |
864dbfa3 | 1357 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1358 | { |
1cb3760b | 1359 | |
9081f4f7 NC |
1360 | char* pv; |
1361 | U32 cur; | |
1362 | U32 len; | |
1363 | IV iv; | |
1364 | NV nv; | |
1365 | MAGIC* magic; | |
1366 | HV* stash; | |
79072805 | 1367 | |
f130fd45 NIS |
1368 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1369 | sv_force_normal(sv); | |
1370 | } | |
1371 | ||
79072805 LW |
1372 | if (SvTYPE(sv) == mt) |
1373 | return TRUE; | |
1374 | ||
a5f75d66 AD |
1375 | if (mt < SVt_PVIV) |
1376 | (void)SvOOK_off(sv); | |
1377 | ||
9081f4f7 NC |
1378 | pv = NULL; |
1379 | cur = 0; | |
1380 | len = 0; | |
1381 | iv = 0; | |
1382 | nv = 0.0; | |
1383 | magic = NULL; | |
1384 | stash = Nullhv; | |
1385 | ||
79072805 LW |
1386 | switch (SvTYPE(sv)) { |
1387 | case SVt_NULL: | |
79072805 | 1388 | break; |
79072805 | 1389 | case SVt_IV: |
463ee0b2 | 1390 | iv = SvIVX(sv); |
79072805 | 1391 | del_XIV(SvANY(sv)); |
ed6116ce | 1392 | if (mt == SVt_NV) |
463ee0b2 | 1393 | mt = SVt_PVNV; |
ed6116ce LW |
1394 | else if (mt < SVt_PVIV) |
1395 | mt = SVt_PVIV; | |
79072805 LW |
1396 | break; |
1397 | case SVt_NV: | |
463ee0b2 | 1398 | nv = SvNVX(sv); |
79072805 | 1399 | del_XNV(SvANY(sv)); |
ed6116ce | 1400 | if (mt < SVt_PVNV) |
79072805 LW |
1401 | mt = SVt_PVNV; |
1402 | break; | |
ed6116ce LW |
1403 | case SVt_RV: |
1404 | pv = (char*)SvRV(sv); | |
ed6116ce | 1405 | del_XRV(SvANY(sv)); |
ed6116ce | 1406 | break; |
79072805 | 1407 | case SVt_PV: |
463ee0b2 | 1408 | pv = SvPVX(sv); |
79072805 LW |
1409 | cur = SvCUR(sv); |
1410 | len = SvLEN(sv); | |
79072805 | 1411 | del_XPV(SvANY(sv)); |
748a9306 LW |
1412 | if (mt <= SVt_IV) |
1413 | mt = SVt_PVIV; | |
1414 | else if (mt == SVt_NV) | |
1415 | mt = SVt_PVNV; | |
79072805 LW |
1416 | break; |
1417 | case SVt_PVIV: | |
463ee0b2 | 1418 | pv = SvPVX(sv); |
79072805 LW |
1419 | cur = SvCUR(sv); |
1420 | len = SvLEN(sv); | |
463ee0b2 | 1421 | iv = SvIVX(sv); |
79072805 LW |
1422 | del_XPVIV(SvANY(sv)); |
1423 | break; | |
1424 | case SVt_PVNV: | |
463ee0b2 | 1425 | pv = SvPVX(sv); |
79072805 LW |
1426 | cur = SvCUR(sv); |
1427 | len = SvLEN(sv); | |
463ee0b2 LW |
1428 | iv = SvIVX(sv); |
1429 | nv = SvNVX(sv); | |
79072805 LW |
1430 | del_XPVNV(SvANY(sv)); |
1431 | break; | |
1432 | case SVt_PVMG: | |
2a8de9e2 AL |
1433 | /* Because the XPVMG of PL_mess_sv isn't allocated from the arena, |
1434 | there's no way that it can be safely upgraded, because perl.c | |
1435 | expects to Safefree(SvANY(PL_mess_sv)) */ | |
1436 | assert(sv != PL_mess_sv); | |
2098fb77 NC |
1437 | /* This flag bit is used to mean other things in other scalar types. |
1438 | Given that it only has meaning inside the pad, it shouldn't be set | |
1439 | on anything that can get upgraded. */ | |
1440 | assert((SvFLAGS(sv) & SVpad_TYPED) == 0); | |
463ee0b2 | 1441 | pv = SvPVX(sv); |
79072805 LW |
1442 | cur = SvCUR(sv); |
1443 | len = SvLEN(sv); | |
463ee0b2 LW |
1444 | iv = SvIVX(sv); |
1445 | nv = SvNVX(sv); | |
79072805 LW |
1446 | magic = SvMAGIC(sv); |
1447 | stash = SvSTASH(sv); | |
1448 | del_XPVMG(SvANY(sv)); | |
1449 | break; | |
1450 | default: | |
cea2e8a9 | 1451 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1452 | } |
1453 | ||
0da6cfda SP |
1454 | SvFLAGS(sv) &= ~SVTYPEMASK; |
1455 | SvFLAGS(sv) |= mt; | |
1456 | ||
79072805 LW |
1457 | switch (mt) { |
1458 | case SVt_NULL: | |
cea2e8a9 | 1459 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1460 | case SVt_IV: |
1461 | SvANY(sv) = new_XIV(); | |
0da6cfda | 1462 | SvIV_set(sv, iv); |
79072805 LW |
1463 | break; |
1464 | case SVt_NV: | |
1465 | SvANY(sv) = new_XNV(); | |
0da6cfda | 1466 | SvNV_set(sv, nv); |
79072805 | 1467 | break; |
ed6116ce LW |
1468 | case SVt_RV: |
1469 | SvANY(sv) = new_XRV(); | |
a8dc4fe8 | 1470 | SvRV_set(sv, (SV*)pv); |
ed6116ce | 1471 | break; |
79072805 LW |
1472 | case SVt_PV: |
1473 | SvANY(sv) = new_XPV(); | |
0da6cfda | 1474 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1475 | SvCUR_set(sv, cur); |
1476 | SvLEN_set(sv, len); | |
79072805 LW |
1477 | break; |
1478 | case SVt_PVIV: | |
1479 | SvANY(sv) = new_XPVIV(); | |
0da6cfda | 1480 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1481 | SvCUR_set(sv, cur); |
1482 | SvLEN_set(sv, len); | |
0da6cfda | 1483 | SvIV_set(sv, iv); |
79072805 | 1484 | if (SvNIOK(sv)) |
a0d0e21e | 1485 | (void)SvIOK_on(sv); |
79072805 LW |
1486 | SvNOK_off(sv); |
1487 | break; | |
1488 | case SVt_PVNV: | |
1489 | SvANY(sv) = new_XPVNV(); | |
0da6cfda | 1490 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1491 | SvCUR_set(sv, cur); |
1492 | SvLEN_set(sv, len); | |
0da6cfda SP |
1493 | SvIV_set(sv, iv); |
1494 | SvNV_set(sv, nv); | |
79072805 LW |
1495 | break; |
1496 | case SVt_PVMG: | |
1497 | SvANY(sv) = new_XPVMG(); | |
0da6cfda | 1498 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1499 | SvCUR_set(sv, cur); |
1500 | SvLEN_set(sv, len); | |
0da6cfda SP |
1501 | SvIV_set(sv, iv); |
1502 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1503 | SvMAGIC_set(sv, magic); |
1504 | SvSTASH_set(sv, stash); | |
79072805 LW |
1505 | break; |
1506 | case SVt_PVLV: | |
1507 | SvANY(sv) = new_XPVLV(); | |
0da6cfda | 1508 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1509 | SvCUR_set(sv, cur); |
1510 | SvLEN_set(sv, len); | |
0da6cfda SP |
1511 | SvIV_set(sv, iv); |
1512 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1513 | SvMAGIC_set(sv, magic); |
1514 | SvSTASH_set(sv, stash); | |
79072805 LW |
1515 | LvTARGOFF(sv) = 0; |
1516 | LvTARGLEN(sv) = 0; | |
1517 | LvTARG(sv) = 0; | |
1518 | LvTYPE(sv) = 0; | |
1519 | break; | |
1520 | case SVt_PVAV: | |
1521 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1522 | if (pv) |
1523 | Safefree(pv); | |
0da6cfda | 1524 | SvPV_set(sv, (char*)0); |
d1bf51dd | 1525 | AvMAX(sv) = -1; |
93965878 | 1526 | AvFILLp(sv) = -1; |
0da6cfda SP |
1527 | SvIV_set(sv, 0); |
1528 | SvNV_set(sv, 0.0); | |
a8dc4fe8 SP |
1529 | SvMAGIC_set(sv, magic); |
1530 | SvSTASH_set(sv, stash); | |
463ee0b2 | 1531 | AvALLOC(sv) = 0; |
79072805 | 1532 | AvARYLEN(sv) = 0; |
1cb3760b | 1533 | AvFLAGS(sv) = AVf_REAL; |
79072805 LW |
1534 | break; |
1535 | case SVt_PVHV: | |
1536 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1537 | if (pv) |
1538 | Safefree(pv); | |
0da6cfda | 1539 | SvPV_set(sv, (char*)0); |
463ee0b2 LW |
1540 | HvFILL(sv) = 0; |
1541 | HvMAX(sv) = 0; | |
8aacddc1 | 1542 | HvTOTALKEYS(sv) = 0; |
c3f2d5da | 1543 | HvPLACEHOLDERS_set(sv, 0); |
a8dc4fe8 SP |
1544 | SvMAGIC_set(sv, magic); |
1545 | SvSTASH_set(sv, stash); | |
79072805 LW |
1546 | HvRITER(sv) = 0; |
1547 | HvEITER(sv) = 0; | |
1548 | HvPMROOT(sv) = 0; | |
1549 | HvNAME(sv) = 0; | |
79072805 LW |
1550 | break; |
1551 | case SVt_PVCV: | |
1552 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1553 | Zero(SvANY(sv), 1, XPVCV); |
0da6cfda | 1554 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1555 | SvCUR_set(sv, cur); |
1556 | SvLEN_set(sv, len); | |
0da6cfda SP |
1557 | SvIV_set(sv, iv); |
1558 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1559 | SvMAGIC_set(sv, magic); |
1560 | SvSTASH_set(sv, stash); | |
79072805 LW |
1561 | break; |
1562 | case SVt_PVGV: | |
1563 | SvANY(sv) = new_XPVGV(); | |
0da6cfda | 1564 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1565 | SvCUR_set(sv, cur); |
1566 | SvLEN_set(sv, len); | |
0da6cfda SP |
1567 | SvIV_set(sv, iv); |
1568 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1569 | SvMAGIC_set(sv, magic); |
1570 | SvSTASH_set(sv, stash); | |
93a17b20 | 1571 | GvGP(sv) = 0; |
79072805 LW |
1572 | GvNAME(sv) = 0; |
1573 | GvNAMELEN(sv) = 0; | |
1574 | GvSTASH(sv) = 0; | |
a5f75d66 | 1575 | GvFLAGS(sv) = 0; |
79072805 LW |
1576 | break; |
1577 | case SVt_PVBM: | |
1578 | SvANY(sv) = new_XPVBM(); | |
0da6cfda | 1579 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1580 | SvCUR_set(sv, cur); |
1581 | SvLEN_set(sv, len); | |
0da6cfda SP |
1582 | SvIV_set(sv, iv); |
1583 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1584 | SvMAGIC_set(sv, magic); |
1585 | SvSTASH_set(sv, stash); | |
79072805 LW |
1586 | BmRARE(sv) = 0; |
1587 | BmUSEFUL(sv) = 0; | |
1588 | BmPREVIOUS(sv) = 0; | |
1589 | break; | |
1590 | case SVt_PVFM: | |
1591 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1592 | Zero(SvANY(sv), 1, XPVFM); |
0da6cfda | 1593 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1594 | SvCUR_set(sv, cur); |
1595 | SvLEN_set(sv, len); | |
0da6cfda SP |
1596 | SvIV_set(sv, iv); |
1597 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1598 | SvMAGIC_set(sv, magic); |
1599 | SvSTASH_set(sv, stash); | |
79072805 | 1600 | break; |
8990e307 LW |
1601 | case SVt_PVIO: |
1602 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1603 | Zero(SvANY(sv), 1, XPVIO); |
0da6cfda | 1604 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1605 | SvCUR_set(sv, cur); |
1606 | SvLEN_set(sv, len); | |
0da6cfda SP |
1607 | SvIV_set(sv, iv); |
1608 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1609 | SvMAGIC_set(sv, magic); |
1610 | SvSTASH_set(sv, stash); | |
85e6fe83 | 1611 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1612 | break; |
1613 | } | |
79072805 LW |
1614 | return TRUE; |
1615 | } | |
1616 | ||
645c22ef DM |
1617 | /* |
1618 | =for apidoc sv_backoff | |
1619 | ||
1620 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1621 | wrapper instead. | |
1622 | ||
1623 | =cut | |
1624 | */ | |
1625 | ||
79072805 | 1626 | int |
864dbfa3 | 1627 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1628 | { |
1629 | assert(SvOOK(sv)); | |
463ee0b2 | 1630 | if (SvIVX(sv)) { |
fdac8c4b | 1631 | const char *s = SvPVX_const(sv); |
a8dc4fe8 | 1632 | SvLEN_set(sv, SvLEN(sv) + SvIVX(sv)); |
0da6cfda | 1633 | SvPV_set(sv, SvPVX(sv) - SvIVX(sv)); |
79072805 | 1634 | SvIV_set(sv, 0); |
463ee0b2 | 1635 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1636 | } |
1637 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1638 | return 0; |
79072805 LW |
1639 | } |
1640 | ||
954c1994 GS |
1641 | /* |
1642 | =for apidoc sv_grow | |
1643 | ||
645c22ef DM |
1644 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1645 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1646 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1647 | |
1648 | =cut | |
1649 | */ | |
1650 | ||
79072805 | 1651 | char * |
864dbfa3 | 1652 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1653 | { |
1654 | register char *s; | |
1655 | ||
54f0641b NIS |
1656 | |
1657 | ||
55497cff | 1658 | #ifdef HAS_64K_LIMIT |
79072805 | 1659 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1660 | PerlIO_printf(Perl_debug_log, |
1661 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1662 | my_exit(1); |
1663 | } | |
55497cff | 1664 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1665 | if (SvROK(sv)) |
1666 | sv_unref(sv); | |
79072805 LW |
1667 | if (SvTYPE(sv) < SVt_PV) { |
1668 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1669 | s = SvPVX(sv); |
79072805 LW |
1670 | } |
1671 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1672 | sv_backoff(sv); | |
463ee0b2 | 1673 | s = SvPVX(sv); |
79072805 LW |
1674 | if (newlen > SvLEN(sv)) |
1675 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1676 | #ifdef HAS_64K_LIMIT |
1677 | if (newlen >= 0x10000) | |
1678 | newlen = 0xFFFF; | |
1679 | #endif | |
79072805 LW |
1680 | } |
1681 | else | |
463ee0b2 | 1682 | s = SvPVX(sv); |
54f0641b | 1683 | |
79072805 | 1684 | if (newlen > SvLEN(sv)) { /* need more room? */ |
9eaeeaca | 1685 | newlen = PERL_STRLEN_ROUNDUP(newlen); |
8d6dde3e | 1686 | if (SvLEN(sv) && s) { |
2fe0f101 | 1687 | #ifdef MYMALLOC |
8c18bf38 | 1688 | const STRLEN l = malloced_size((void*)SvPVX(sv)); |
8d6dde3e IZ |
1689 | if (newlen <= l) { |
1690 | SvLEN_set(sv, l); | |
1691 | return s; | |
1692 | } else | |
c70c8a0a | 1693 | #endif |
9eaeeaca | 1694 | s = saferealloc(s, newlen); |
8d6dde3e | 1695 | } |
a00f3e00 | 1696 | else { |
ee5f0761 AMS |
1697 | /* sv_force_normal_flags() must not try to unshare the new |
1698 | PVX we allocate below. AMS 20010713 */ | |
4e83176d | 1699 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
4e83176d AMS |
1700 | SvFAKE_off(sv); |
1701 | SvREADONLY_off(sv); | |
4e83176d | 1702 | } |
9eaeeaca | 1703 | s = safemalloc(newlen); |
fdac8c4b SP |
1704 | if (SvPVX_const(sv) && SvCUR(sv)) { |
1705 | Move(SvPVX_const(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); | |
40565179 | 1706 | } |
4e83176d | 1707 | } |
79072805 | 1708 | SvPV_set(sv, s); |
c05e0e2f | 1709 | SvLEN_set(sv, newlen); |
79072805 LW |
1710 | } |
1711 | return s; | |
1712 | } | |
1713 | ||
954c1994 GS |
1714 | /* |
1715 | =for apidoc sv_setiv | |
1716 | ||
645c22ef DM |
1717 | Copies an integer into the given SV, upgrading first if necessary. |
1718 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1719 | |
1720 | =cut | |
1721 | */ | |
1722 | ||
79072805 | 1723 | void |
864dbfa3 | 1724 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1725 | { |
2213622d | 1726 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1727 | switch (SvTYPE(sv)) { |
1728 | case SVt_NULL: | |
79072805 | 1729 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1730 | break; |
1731 | case SVt_NV: | |
1732 | sv_upgrade(sv, SVt_PVNV); | |
1733 | break; | |
ed6116ce | 1734 | case SVt_RV: |
463ee0b2 | 1735 | case SVt_PV: |
79072805 | 1736 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1737 | break; |
a0d0e21e LW |
1738 | |
1739 | case SVt_PVGV: | |
a0d0e21e LW |
1740 | case SVt_PVAV: |
1741 | case SVt_PVHV: | |
1742 | case SVt_PVCV: | |
1743 | case SVt_PVFM: | |
1744 | case SVt_PVIO: | |
411caa50 | 1745 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1746 | OP_DESC(PL_op)); |
463ee0b2 | 1747 | } |
a0d0e21e | 1748 | (void)SvIOK_only(sv); /* validate number */ |
0da6cfda | 1749 | SvIV_set(sv, i); |
463ee0b2 | 1750 | SvTAINT(sv); |
79072805 LW |
1751 | } |
1752 | ||
954c1994 GS |
1753 | /* |
1754 | =for apidoc sv_setiv_mg | |
1755 | ||
1756 | Like C<sv_setiv>, but also handles 'set' magic. | |
1757 | ||
1758 | =cut | |
1759 | */ | |
1760 | ||
79072805 | 1761 | void |
864dbfa3 | 1762 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1763 | { |
1764 | sv_setiv(sv,i); | |
1765 | SvSETMAGIC(sv); | |
1766 | } | |
1767 | ||
954c1994 GS |
1768 | /* |
1769 | =for apidoc sv_setuv | |
1770 | ||
645c22ef DM |
1771 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1772 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1773 | |
1774 | =cut | |
1775 | */ | |
1776 | ||
ef50df4b | 1777 | void |
864dbfa3 | 1778 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1779 | { |
55ada374 NC |
1780 | /* With these two if statements: |
1781 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1782 | |
55ada374 NC |
1783 | without |
1784 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1785 | |
55ada374 NC |
1786 | If you wish to remove them, please benchmark to see what the effect is |
1787 | */ | |
28e5dec8 JH |
1788 | if (u <= (UV)IV_MAX) { |
1789 | sv_setiv(sv, (IV)u); | |
1790 | return; | |
1791 | } | |
25da4f38 IZ |
1792 | sv_setiv(sv, 0); |
1793 | SvIsUV_on(sv); | |
0da6cfda | 1794 | SvUV_set(sv, u); |
55497cff | 1795 | } |
1796 | ||
954c1994 GS |
1797 | /* |
1798 | =for apidoc sv_setuv_mg | |
1799 | ||
1800 | Like C<sv_setuv>, but also handles 'set' magic. | |
1801 | ||
1802 | =cut | |
1803 | */ | |
1804 | ||
55497cff | 1805 | void |
864dbfa3 | 1806 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1807 | { |
55ada374 NC |
1808 | /* With these two if statements: |
1809 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1810 | |
55ada374 NC |
1811 | without |
1812 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1813 | |
55ada374 NC |
1814 | If you wish to remove them, please benchmark to see what the effect is |
1815 | */ | |
28e5dec8 JH |
1816 | if (u <= (UV)IV_MAX) { |
1817 | sv_setiv(sv, (IV)u); | |
1818 | } else { | |
1819 | sv_setiv(sv, 0); | |
1820 | SvIsUV_on(sv); | |
1821 | sv_setuv(sv,u); | |
1822 | } | |
ef50df4b GS |
1823 | SvSETMAGIC(sv); |
1824 | } | |
1825 | ||
954c1994 GS |
1826 | /* |
1827 | =for apidoc sv_setnv | |
1828 | ||
645c22ef DM |
1829 | Copies a double into the given SV, upgrading first if necessary. |
1830 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1831 | |
1832 | =cut | |
1833 | */ | |
1834 | ||
ef50df4b | 1835 | void |
65202027 | 1836 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1837 | { |
2213622d | 1838 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1839 | switch (SvTYPE(sv)) { |
1840 | case SVt_NULL: | |
1841 | case SVt_IV: | |
79072805 | 1842 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1843 | break; |
a0d0e21e LW |
1844 | case SVt_RV: |
1845 | case SVt_PV: | |
1846 | case SVt_PVIV: | |
79072805 | 1847 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1848 | break; |
827b7e14 | 1849 | |
a0d0e21e | 1850 | case SVt_PVGV: |
a0d0e21e LW |
1851 | case SVt_PVAV: |
1852 | case SVt_PVHV: | |
1853 | case SVt_PVCV: | |
1854 | case SVt_PVFM: | |
1855 | case SVt_PVIO: | |
411caa50 | 1856 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1857 | OP_NAME(PL_op)); |
79072805 | 1858 | } |
0da6cfda | 1859 | SvNV_set(sv, num); |
a0d0e21e | 1860 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1861 | SvTAINT(sv); |
79072805 LW |
1862 | } |
1863 | ||
954c1994 GS |
1864 | /* |
1865 | =for apidoc sv_setnv_mg | |
1866 | ||
1867 | Like C<sv_setnv>, but also handles 'set' magic. | |
1868 | ||
1869 | =cut | |
1870 | */ | |
1871 | ||
ef50df4b | 1872 | void |
65202027 | 1873 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1874 | { |
1875 | sv_setnv(sv,num); | |
1876 | SvSETMAGIC(sv); | |
1877 | } | |
1878 | ||
645c22ef DM |
1879 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1880 | * printable version of the offending string | |
1881 | */ | |
1882 | ||
76e3520e | 1883 | STATIC void |
cea2e8a9 | 1884 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1885 | { |
94463019 JH |
1886 | SV *dsv; |
1887 | char tmpbuf[64]; | |
1888 | char *pv; | |
1889 | ||
1890 | if (DO_UTF8(sv)) { | |
1891 | dsv = sv_2mortal(newSVpv("", 0)); | |
1892 | pv = sv_uni_display(dsv, sv, 10, 0); | |
1893 | } else { | |
1894 | char *d = tmpbuf; | |
1895 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1896 | /* each *s can expand to 4 chars + "...\0", | |
1897 | i.e. need room for 8 chars */ | |
ecdeb87c | 1898 | |
94463019 JH |
1899 | char *s, *end; |
1900 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
1901 | int ch = *s & 0xFF; | |
1902 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1903 | *d++ = 'M'; | |
1904 | *d++ = '-'; | |
1905 | ch &= 127; | |
1906 | } | |
1907 | if (ch == '\n') { | |
1908 | *d++ = '\\'; | |
1909 | *d++ = 'n'; | |
1910 | } | |
1911 | else if (ch == '\r') { | |
1912 | *d++ = '\\'; | |
1913 | *d++ = 'r'; | |
1914 | } | |
1915 | else if (ch == '\f') { | |
1916 | *d++ = '\\'; | |
1917 | *d++ = 'f'; | |
1918 | } | |
1919 | else if (ch == '\\') { | |
1920 | *d++ = '\\'; | |
1921 | *d++ = '\\'; | |
1922 | } | |
1923 | else if (ch == '\0') { | |
1924 | *d++ = '\\'; | |
1925 | *d++ = '0'; | |
1926 | } | |
1927 | else if (isPRINT_LC(ch)) | |
1928 | *d++ = ch; | |
1929 | else { | |
1930 | *d++ = '^'; | |
1931 | *d++ = toCTRL(ch); | |
1932 | } | |
1933 | } | |
1934 | if (s < end) { | |
1935 | *d++ = '.'; | |
1936 | *d++ = '.'; | |
1937 | *d++ = '.'; | |
1938 | } | |
1939 | *d = '\0'; | |
1940 | pv = tmpbuf; | |
a0d0e21e | 1941 | } |
a0d0e21e | 1942 | |
533c011a | 1943 | if (PL_op) |
9014280d | 1944 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1945 | "Argument \"%s\" isn't numeric in %s", pv, |
1946 | OP_DESC(PL_op)); | |
a0d0e21e | 1947 | else |
9014280d | 1948 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1949 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1950 | } |
1951 | ||
c2988b20 NC |
1952 | /* |
1953 | =for apidoc looks_like_number | |
1954 | ||
645c22ef DM |
1955 | Test if the content of an SV looks like a number (or is a number). |
1956 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1957 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1958 | |
1959 | =cut | |
1960 | */ | |
1961 | ||
1962 | I32 | |
1963 | Perl_looks_like_number(pTHX_ SV *sv) | |
1964 | { | |
8c18bf38 | 1965 | register const char *sbegin; |
c2988b20 NC |
1966 | STRLEN len; |
1967 | ||
1968 | if (SvPOK(sv)) { | |
fdac8c4b | 1969 | sbegin = SvPVX_const(sv); |
c2988b20 NC |
1970 | len = SvCUR(sv); |
1971 | } | |
1972 | else if (SvPOKp(sv)) | |
1973 | sbegin = SvPV(sv, len); | |
1974 | else | |
fc3d430d | 1975 | return SvFLAGS(sv) & (SVf_NOK|SVp_NOK|SVf_IOK|SVp_IOK); |
c2988b20 NC |
1976 | return grok_number(sbegin, len, NULL); |
1977 | } | |
25da4f38 IZ |
1978 | |
1979 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1980 | until proven guilty, assume that things are not that bad... */ | |
1981 | ||
645c22ef DM |
1982 | /* |
1983 | NV_PRESERVES_UV: | |
1984 | ||
1985 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1986 | an IV (an assumption perl has been based on to date) it becomes necessary |
1987 | to remove the assumption that the NV always carries enough precision to | |
1988 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1989 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1990 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1991 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1992 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1993 | conversion where precision was lost and IV/UV/NV slots that have a | |
1994 | valid conversion which has lost no precision | |
645c22ef | 1995 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1996 | would lose precision, the precise conversion (or differently |
1997 | imprecise conversion) is also performed and cached, to prevent | |
1998 | requests for different numeric formats on the same SV causing | |
1999 | lossy conversion chains. (lossless conversion chains are perfectly | |
2000 | acceptable (still)) | |
2001 | ||
2002 | ||
2003 | flags are used: | |
2004 | SvIOKp is true if the IV slot contains a valid value | |
2005 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
2006 | SvNOKp is true if the NV slot contains a valid value | |
2007 | SvNOK is true only if the NV value is accurate | |
2008 | ||
2009 | so | |
645c22ef | 2010 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
2011 | IV(or UV) would lose accuracy over a direct conversion from PV to |
2012 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
2013 | SV as IOK NOKp (ie not NOK). | |
2014 | ||
645c22ef | 2015 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
2016 | NV would lose accuracy over a direct conversion from PV to NV. If it |
2017 | would, cache both conversions, flag similarly. | |
2018 | ||
2019 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
2020 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
2021 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
2022 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 2023 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 2024 | |
645c22ef DM |
2025 | The benefit of this is that operations such as pp_add know that if |
2026 | SvIOK is true for both left and right operands, then integer addition | |
2027 | can be used instead of floating point (for cases where the result won't | |
2028 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
2029 | loss of precision compared with integer addition. |
2030 | ||
2031 | * making IV and NV equal status should make maths accurate on 64 bit | |
2032 | platforms | |
2033 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 2034 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
2035 | looking for SvIOK and checking for overflow will not outweigh the |
2036 | fp to integer speedup) | |
2037 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
2038 | values, as the change from SvIOK to SvIOKp will cause a call into | |
2039 | sv_2iv each time rather than a macro access direct to the IV slot | |
2040 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 2041 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
2042 | |
2043 | #################################################################### | |
645c22ef DM |
2044 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
2045 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
2046 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
2047 | #################################################################### |
2048 | ||
645c22ef | 2049 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
2050 | performance ratio. |
2051 | */ | |
2052 | ||
2053 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
2054 | # define IS_NUMBER_UNDERFLOW_IV 1 |
2055 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
2056 | # define IS_NUMBER_IV_AND_UV 2 | |
2057 | # define IS_NUMBER_OVERFLOW_IV 4 | |
2058 | # define IS_NUMBER_OVERFLOW_UV 5 | |
2059 | ||
2060 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
2061 | |
2062 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
2063 | STATIC int | |
645c22ef | 2064 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 2065 | { |
fdac8c4b | 2066 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%"NVgf" inttype=%"UVXf"\n", SvPVX_const(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); |
28e5dec8 JH |
2067 | if (SvNVX(sv) < (NV)IV_MIN) { |
2068 | (void)SvIOKp_on(sv); | |
2069 | (void)SvNOK_on(sv); | |
0da6cfda | 2070 | SvIV_set(sv, IV_MIN); |
28e5dec8 JH |
2071 | return IS_NUMBER_UNDERFLOW_IV; |
2072 | } | |
2073 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2074 | (void)SvIOKp_on(sv); | |
2075 | (void)SvNOK_on(sv); | |
2076 | SvIsUV_on(sv); | |
0da6cfda | 2077 | SvUV_set(sv, UV_MAX); |
28e5dec8 JH |
2078 | return IS_NUMBER_OVERFLOW_UV; |
2079 | } | |
c2988b20 NC |
2080 | (void)SvIOKp_on(sv); |
2081 | (void)SvNOK_on(sv); | |
2082 | /* Can't use strtol etc to convert this string. (See truth table in | |
2083 | sv_2iv */ | |
2084 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
0da6cfda | 2085 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2086 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2087 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
2088 | } else { | |
2089 | /* Integer is imprecise. NOK, IOKp */ | |
2090 | } | |
2091 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
2092 | } | |
2093 | SvIsUV_on(sv); | |
0da6cfda | 2094 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2095 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { |
2096 | if (SvUVX(sv) == UV_MAX) { | |
2097 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
2098 | possibly be preserved by NV. Hence, it must be overflow. | |
2099 | NOK, IOKp */ | |
2100 | return IS_NUMBER_OVERFLOW_UV; | |
2101 | } | |
2102 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
2103 | } else { | |
2104 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 2105 | } |
c2988b20 | 2106 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 2107 | } |
645c22ef DM |
2108 | #endif /* !NV_PRESERVES_UV*/ |
2109 | ||
2110 | /* | |
2111 | =for apidoc sv_2iv | |
2112 | ||
2113 | Return the integer value of an SV, doing any necessary string conversion, | |
2114 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
2115 | ||
2116 | =cut | |
2117 | */ | |
28e5dec8 | 2118 | |
a0d0e21e | 2119 | IV |
864dbfa3 | 2120 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2121 | { |
2122 | if (!sv) | |
2123 | return 0; | |
8990e307 | 2124 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2125 | mg_get(sv); |
2126 | if (SvIOKp(sv)) | |
2127 | return SvIVX(sv); | |
748a9306 | 2128 | if (SvNOKp(sv)) { |
25da4f38 | 2129 | return I_V(SvNVX(sv)); |
748a9306 | 2130 | } |
36477c24 | 2131 | if (SvPOKp(sv) && SvLEN(sv)) |
2132 | return asIV(sv); | |
3fe9a6f1 | 2133 | if (!SvROK(sv)) { |
d008e5eb | 2134 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2135 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2136 | report_uninit(); |
c6ee37c5 | 2137 | } |
36477c24 | 2138 | return 0; |
3fe9a6f1 | 2139 | } |
463ee0b2 | 2140 | } |
ed6116ce | 2141 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2142 | if (SvROK(sv)) { |
a0d0e21e | 2143 | SV* tmpstr; |
1554e226 | 2144 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2145 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2146 | return SvIV(tmpstr); |
56431972 | 2147 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2148 | } |
47deb5e7 NIS |
2149 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2150 | sv_force_normal(sv); | |
2151 | } | |
0336b60e | 2152 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2153 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2154 | report_uninit(); |
ed6116ce LW |
2155 | return 0; |
2156 | } | |
79072805 | 2157 | } |
25da4f38 IZ |
2158 | if (SvIOKp(sv)) { |
2159 | if (SvIsUV(sv)) { | |
2160 | return (IV)(SvUVX(sv)); | |
2161 | } | |
2162 | else { | |
2163 | return SvIVX(sv); | |
2164 | } | |
463ee0b2 | 2165 | } |
748a9306 | 2166 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2167 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2168 | * without also getting a cached IV/UV from it at the same time | |
2169 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2170 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2171 | |
2172 | if (SvTYPE(sv) == SVt_NV) | |
2173 | sv_upgrade(sv, SVt_PVNV); | |
2174 | ||
28e5dec8 JH |
2175 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2176 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2177 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2178 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2179 | cases go to UV */ | |
2180 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2181 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2182 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2183 | #ifndef NV_PRESERVES_UV | |
2184 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2185 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2186 | /* Don't flag it as "accurately an integer" if the number | |
2187 | came from a (by definition imprecise) NV operation, and | |
2188 | we're outside the range of NV integer precision */ | |
2189 | #endif | |
2190 | ) { | |
2191 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2192 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2193 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2194 | PTR2UV(sv), |
2195 | SvNVX(sv), | |
2196 | SvIVX(sv))); | |
2197 | ||
2198 | } else { | |
2199 | /* IV not precise. No need to convert from PV, as NV | |
2200 | conversion would already have cached IV if it detected | |
2201 | that PV->IV would be better than PV->NV->IV | |
2202 | flags already correct - don't set public IOK. */ | |
2203 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2204 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2205 | PTR2UV(sv), |
2206 | SvNVX(sv), | |
2207 | SvIVX(sv))); | |
2208 | } | |
2209 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2210 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2211 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2212 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2213 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2214 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2215 | Hopefully for 2s complement IV_MIN is something like | |
2216 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2217 | } |
25da4f38 | 2218 | else { |
0da6cfda | 2219 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2220 | if ( |
2221 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2222 | #ifndef NV_PRESERVES_UV | |
2223 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2224 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2225 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2226 | /* Don't flag it as "accurately an integer" if the number | |
2227 | came from a (by definition imprecise) NV operation, and | |
2228 | we're outside the range of NV integer precision */ | |
2229 | #endif | |
2230 | ) | |
2231 | SvIOK_on(sv); | |
25da4f38 IZ |
2232 | SvIsUV_on(sv); |
2233 | ret_iv_max: | |
1c846c1f | 2234 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2235 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2236 | PTR2UV(sv), |
57def98f JH |
2237 | SvUVX(sv), |
2238 | SvUVX(sv))); | |
25da4f38 IZ |
2239 | return (IV)SvUVX(sv); |
2240 | } | |
748a9306 LW |
2241 | } |
2242 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 | 2243 | UV value; |
547d29e4 | 2244 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
25da4f38 IZ |
2245 | /* We want to avoid a possible problem when we cache an IV which |
2246 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2247 | the same as the direct translation of the initial string |
2248 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2249 | be careful to ensure that the value with the .456 is around if the | |
2250 | NV value is requested in the future). | |
1c846c1f | 2251 | |
25da4f38 IZ |
2252 | This means that if we cache such an IV, we need to cache the |
2253 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2254 | cache the NV if we are sure it's not needed. |
25da4f38 | 2255 | */ |
16b7a9a4 | 2256 | |
c2988b20 NC |
2257 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2258 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2259 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2260 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2261 | if (SvTYPE(sv) < SVt_PVIV) |
2262 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2263 | (void)SvIOK_on(sv); |
c2988b20 NC |
2264 | } else if (SvTYPE(sv) < SVt_PVNV) |
2265 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2266 | |
c2988b20 NC |
2267 | /* If NV preserves UV then we only use the UV value if we know that |
2268 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2269 | then the value returned may have more precision than atof() will | |
2270 | return, even though value isn't perfectly accurate. */ | |
2271 | if ((numtype & (IS_NUMBER_IN_UV | |
2272 | #ifdef NV_PRESERVES_UV | |
2273 | | IS_NUMBER_NOT_INT | |
2274 | #endif | |
2275 | )) == IS_NUMBER_IN_UV) { | |
2276 | /* This won't turn off the public IOK flag if it was set above */ | |
2277 | (void)SvIOKp_on(sv); | |
2278 | ||
2279 | if (!(numtype & IS_NUMBER_NEG)) { | |
2280 | /* positive */; | |
2281 | if (value <= (UV)IV_MAX) { | |
0da6cfda | 2282 | SvIV_set(sv, (IV)value); |
c2988b20 | 2283 | } else { |
0da6cfda | 2284 | SvUV_set(sv, value); |
c2988b20 NC |
2285 | SvIsUV_on(sv); |
2286 | } | |
2287 | } else { | |
2288 | /* 2s complement assumption */ | |
2289 | if (value <= (UV)IV_MIN) { | |
0da6cfda | 2290 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2291 | } else { |
2292 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2293 | I'm assuming it will be rare. */ |
c2988b20 NC |
2294 | if (SvTYPE(sv) < SVt_PVNV) |
2295 | sv_upgrade(sv, SVt_PVNV); | |
2296 | SvNOK_on(sv); | |
2297 | SvIOK_off(sv); | |
2298 | SvIOKp_on(sv); | |
0da6cfda SP |
2299 | SvNV_set(sv, -(NV)value); |
2300 | SvIV_set(sv, IV_MIN); | |
c2988b20 NC |
2301 | } |
2302 | } | |
2303 | } | |
2304 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2305 | will be in the previous block to set the IV slot, and the next | |
2306 | block to set the NV slot. So no else here. */ | |
2307 | ||
2308 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2309 | != IS_NUMBER_IN_UV) { | |
2310 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
fdac8c4b | 2311 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 | 2312 | |
c2988b20 NC |
2313 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2314 | not_a_number(sv); | |
28e5dec8 | 2315 | |
65202027 | 2316 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2317 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2318 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2319 | #else |
1779d84d | 2320 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2321 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2322 | #endif |
28e5dec8 JH |
2323 | |
2324 | ||
2325 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2326 | (void)SvIOKp_on(sv); |
2327 | (void)SvNOK_on(sv); | |
2328 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2329 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2330 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2331 | SvIOK_on(sv); | |
28e5dec8 | 2332 | } else { |
c2988b20 NC |
2333 | /* Integer is imprecise. NOK, IOKp */ |
2334 | } | |
2335 | /* UV will not work better than IV */ | |
2336 | } else { | |
2337 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2338 | SvIsUV_on(sv); | |
2339 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
0da6cfda | 2340 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
2341 | SvIsUV_on(sv); |
2342 | } else { | |
0da6cfda | 2343 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2344 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ |
2345 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2346 | SvIOK_on(sv); | |
28e5dec8 JH |
2347 | SvIsUV_on(sv); |
2348 | } else { | |
c2988b20 NC |
2349 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2350 | SvIsUV_on(sv); | |
28e5dec8 | 2351 | } |
28e5dec8 | 2352 | } |
c2988b20 NC |
2353 | goto ret_iv_max; |
2354 | } | |
28e5dec8 | 2355 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2356 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2357 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2358 | /* The IV slot will have been set from value returned by | |
2359 | grok_number above. The NV slot has just been set using | |
2360 | Atof. */ | |
560b0c46 | 2361 | SvNOK_on(sv); |
c2988b20 NC |
2362 | assert (SvIOKp(sv)); |
2363 | } else { | |
2364 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2365 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2366 | /* Small enough to preserve all bits. */ | |
2367 | (void)SvIOKp_on(sv); | |
2368 | SvNOK_on(sv); | |
0da6cfda | 2369 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2370 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
2371 | SvIOK_on(sv); | |
2372 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2373 | this NV is in the preserved range, therefore: */ | |
2374 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2375 | < (UV)IV_MAX)) { | |
6b6e5432 | 2376 | Perl_croak(aTHX_ "sv_2iv assumed (U_V(fabs((double)SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%"NVgf" U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); |
c2988b20 NC |
2377 | } |
2378 | } else { | |
2379 | /* IN_UV NOT_INT | |
2380 | 0 0 already failed to read UV. | |
2381 | 0 1 already failed to read UV. | |
2382 | 1 0 you won't get here in this case. IV/UV | |
2383 | slot set, public IOK, Atof() unneeded. | |
2384 | 1 1 already read UV. | |
2385 | so there's no point in sv_2iuv_non_preserve() attempting | |
2386 | to use atol, strtol, strtoul etc. */ | |
2387 | if (sv_2iuv_non_preserve (sv, numtype) | |
2388 | >= IS_NUMBER_OVERFLOW_IV) | |
2389 | goto ret_iv_max; | |
2390 | } | |
2391 | } | |
28e5dec8 | 2392 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2393 | } |
28e5dec8 | 2394 | } else { |
599cee73 | 2395 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2396 | report_uninit(); |
25da4f38 IZ |
2397 | if (SvTYPE(sv) < SVt_IV) |
2398 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2399 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2400 | return 0; |
79072805 | 2401 | } |
1d7c1841 GS |
2402 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2403 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2404 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2405 | } |
2406 | ||
645c22ef DM |
2407 | /* |
2408 | =for apidoc sv_2uv | |
2409 | ||
2410 | Return the unsigned integer value of an SV, doing any necessary string | |
2411 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2412 | macros. | |
2413 | ||
2414 | =cut | |
2415 | */ | |
2416 | ||
ff68c719 | 2417 | UV |
864dbfa3 | 2418 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2419 | { |
2420 | if (!sv) | |
2421 | return 0; | |
2422 | if (SvGMAGICAL(sv)) { | |
2423 | mg_get(sv); | |
2424 | if (SvIOKp(sv)) | |
2425 | return SvUVX(sv); | |
2426 | if (SvNOKp(sv)) | |
2427 | return U_V(SvNVX(sv)); | |
36477c24 | 2428 | if (SvPOKp(sv) && SvLEN(sv)) |
2429 | return asUV(sv); | |
3fe9a6f1 | 2430 | if (!SvROK(sv)) { |
d008e5eb | 2431 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2432 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2433 | report_uninit(); |
c6ee37c5 | 2434 | } |
36477c24 | 2435 | return 0; |
3fe9a6f1 | 2436 | } |
ff68c719 | 2437 | } |
2438 | if (SvTHINKFIRST(sv)) { | |
2439 | if (SvROK(sv)) { | |
ff68c719 | 2440 | SV* tmpstr; |
1554e226 | 2441 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2442 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2443 | return SvUV(tmpstr); |
56431972 | 2444 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2445 | } |
8a818333 NIS |
2446 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2447 | sv_force_normal(sv); | |
2448 | } | |
0336b60e | 2449 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2450 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2451 | report_uninit(); |
ff68c719 | 2452 | return 0; |
2453 | } | |
2454 | } | |
25da4f38 IZ |
2455 | if (SvIOKp(sv)) { |
2456 | if (SvIsUV(sv)) { | |
2457 | return SvUVX(sv); | |
2458 | } | |
2459 | else { | |
2460 | return (UV)SvIVX(sv); | |
2461 | } | |
ff68c719 | 2462 | } |
2463 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2464 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2465 | * without also getting a cached IV/UV from it at the same time | |
2466 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2467 | * IV or UV at same time to avoid this. */ | |
2468 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2469 | ||
25da4f38 IZ |
2470 | if (SvTYPE(sv) == SVt_NV) |
2471 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2472 | |
2473 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2474 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2475 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2476 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2477 | #ifndef NV_PRESERVES_UV | |
2478 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2479 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2480 | /* Don't flag it as "accurately an integer" if the number | |
2481 | came from a (by definition imprecise) NV operation, and | |
2482 | we're outside the range of NV integer precision */ | |
2483 | #endif | |
2484 | ) { | |
2485 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2486 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2487 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2488 | PTR2UV(sv), |
2489 | SvNVX(sv), | |
2490 | SvIVX(sv))); | |
2491 | ||
2492 | } else { | |
2493 | /* IV not precise. No need to convert from PV, as NV | |
2494 | conversion would already have cached IV if it detected | |
2495 | that PV->IV would be better than PV->NV->IV | |
2496 | flags already correct - don't set public IOK. */ | |
2497 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2498 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2499 | PTR2UV(sv), |
2500 | SvNVX(sv), | |
2501 | SvIVX(sv))); | |
2502 | } | |
2503 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2504 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2505 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2506 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2507 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2508 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2509 | Hopefully for 2s complement IV_MIN is something like | |
2510 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2511 | } |
28e5dec8 | 2512 | else { |
0da6cfda | 2513 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2514 | if ( |
2515 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2516 | #ifndef NV_PRESERVES_UV | |
2517 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2518 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2519 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2520 | /* Don't flag it as "accurately an integer" if the number | |
2521 | came from a (by definition imprecise) NV operation, and | |
2522 | we're outside the range of NV integer precision */ | |
2523 | #endif | |
2524 | ) | |
2525 | SvIOK_on(sv); | |
2526 | SvIsUV_on(sv); | |
1c846c1f | 2527 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2528 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2529 | PTR2UV(sv), |
28e5dec8 JH |
2530 | SvUVX(sv), |
2531 | SvUVX(sv))); | |
25da4f38 | 2532 | } |
ff68c719 | 2533 | } |
2534 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 | 2535 | UV value; |
547d29e4 | 2536 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
25da4f38 IZ |
2537 | |
2538 | /* We want to avoid a possible problem when we cache a UV which | |
2539 | may be later translated to an NV, and the resulting NV is not | |
2540 | the translation of the initial data. | |
1c846c1f | 2541 | |
25da4f38 IZ |
2542 | This means that if we cache such a UV, we need to cache the |
2543 | NV as well. Moreover, we trade speed for space, and do not | |
2544 | cache the NV if not needed. | |
2545 | */ | |
16b7a9a4 | 2546 | |
c2988b20 NC |
2547 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2548 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2549 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2550 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2551 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2552 | sv_upgrade(sv, SVt_PVIV); |
2553 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2554 | } else if (SvTYPE(sv) < SVt_PVNV) |
2555 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2556 | |
c2988b20 NC |
2557 | /* If NV preserves UV then we only use the UV value if we know that |
2558 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2559 | then the value returned may have more precision than atof() will | |
2560 | return, even though it isn't accurate. */ | |
2561 | if ((numtype & (IS_NUMBER_IN_UV | |
2562 | #ifdef NV_PRESERVES_UV | |
2563 | | IS_NUMBER_NOT_INT | |
2564 | #endif | |
2565 | )) == IS_NUMBER_IN_UV) { | |
2566 | /* This won't turn off the public IOK flag if it was set above */ | |
2567 | (void)SvIOKp_on(sv); | |
2568 | ||
2569 | if (!(numtype & IS_NUMBER_NEG)) { | |
2570 | /* positive */; | |
2571 | if (value <= (UV)IV_MAX) { | |
0da6cfda | 2572 | SvIV_set(sv, (IV)value); |
28e5dec8 JH |
2573 | } else { |
2574 | /* it didn't overflow, and it was positive. */ | |
0da6cfda | 2575 | SvUV_set(sv, value); |
28e5dec8 JH |
2576 | SvIsUV_on(sv); |
2577 | } | |
c2988b20 NC |
2578 | } else { |
2579 | /* 2s complement assumption */ | |
2580 | if (value <= (UV)IV_MIN) { | |
0da6cfda | 2581 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2582 | } else { |
2583 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2584 | I'm assuming it will be rare. */ |
c2988b20 NC |
2585 | if (SvTYPE(sv) < SVt_PVNV) |
2586 | sv_upgrade(sv, SVt_PVNV); | |
2587 | SvNOK_on(sv); | |
2588 | SvIOK_off(sv); | |
2589 | SvIOKp_on(sv); | |
0da6cfda SP |
2590 | SvNV_set(sv, -(NV)value); |
2591 | SvIV_set(sv, IV_MIN); | |
c2988b20 NC |
2592 | } |
2593 | } | |
2594 | } | |
2595 | ||
2596 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2597 | != IS_NUMBER_IN_UV) { | |
2598 | /* It wasn't an integer, or it overflowed the UV. */ | |
fdac8c4b | 2599 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 | 2600 | |
c2988b20 | 2601 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2602 | not_a_number(sv); |
2603 | ||
2604 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2605 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2606 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2607 | #else |
1779d84d | 2608 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2609 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2610 | #endif |
2611 | ||
2612 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2613 | (void)SvIOKp_on(sv); |
2614 | (void)SvNOK_on(sv); | |
2615 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2616 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2617 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2618 | SvIOK_on(sv); | |
2619 | } else { | |
2620 | /* Integer is imprecise. NOK, IOKp */ | |
2621 | } | |
2622 | /* UV will not work better than IV */ | |
2623 | } else { | |
2624 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2625 | SvIsUV_on(sv); | |
2626 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
0da6cfda | 2627 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
2628 | SvIsUV_on(sv); |
2629 | } else { | |
0da6cfda | 2630 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2631 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs |
2632 | NV preservse UV so can do correct comparison. */ | |
2633 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2634 | SvIOK_on(sv); | |
2635 | SvIsUV_on(sv); | |
2636 | } else { | |
2637 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2638 | SvIsUV_on(sv); | |
2639 | } | |
2640 | } | |
2641 | } | |
28e5dec8 | 2642 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2643 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2644 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2645 | /* The UV slot will have been set from value returned by | |
2646 | grok_number above. The NV slot has just been set using | |
2647 | Atof. */ | |
560b0c46 | 2648 | SvNOK_on(sv); |
c2988b20 NC |
2649 | assert (SvIOKp(sv)); |
2650 | } else { | |
2651 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2652 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2653 | /* Small enough to preserve all bits. */ | |
2654 | (void)SvIOKp_on(sv); | |
2655 | SvNOK_on(sv); | |
0da6cfda | 2656 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2657 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
2658 | SvIOK_on(sv); | |
2659 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2660 | this NV is in the preserved range, therefore: */ | |
2661 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2662 | < (UV)IV_MAX)) { | |
6b6e5432 | 2663 | Perl_croak(aTHX_ "sv_2uv assumed (U_V(fabs((double)SvNVX(sv))) < (UV)IV_MAX) but SvNVX(sv)=%"NVgf" U_V is 0x%"UVxf", IV_MAX is 0x%"UVxf"\n", SvNVX(sv), U_V(SvNVX(sv)), (UV)IV_MAX); |
c2988b20 NC |
2664 | } |
2665 | } else | |
2666 | sv_2iuv_non_preserve (sv, numtype); | |
2667 | } | |
28e5dec8 | 2668 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2669 | } |
ff68c719 | 2670 | } |
2671 | else { | |
d008e5eb | 2672 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2673 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2674 | report_uninit(); |
c6ee37c5 | 2675 | } |
25da4f38 IZ |
2676 | if (SvTYPE(sv) < SVt_IV) |
2677 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2678 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2679 | return 0; |
2680 | } | |
25da4f38 | 2681 | |
1d7c1841 GS |
2682 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2683 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2684 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2685 | } |
2686 | ||
645c22ef DM |
2687 | /* |
2688 | =for apidoc sv_2nv | |
2689 | ||
2690 | Return the num value of an SV, doing any necessary string or integer | |
2691 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2692 | macros. | |
2693 | ||
2694 | =cut | |
2695 | */ | |
2696 | ||
65202027 | 2697 | NV |
864dbfa3 | 2698 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2699 | { |
2700 | if (!sv) | |
2701 | return 0.0; | |
8990e307 | 2702 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2703 | mg_get(sv); |
2704 | if (SvNOKp(sv)) | |
2705 | return SvNVX(sv); | |
a0d0e21e | 2706 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 | 2707 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
547d29e4 | 2708 | !grok_number(SvPVX_const(sv), SvCUR(sv), NULL)) |
a0d0e21e | 2709 | not_a_number(sv); |
fdac8c4b | 2710 | return Atof(SvPVX_const(sv)); |
a0d0e21e | 2711 | } |
25da4f38 | 2712 | if (SvIOKp(sv)) { |
1c846c1f | 2713 | if (SvIsUV(sv)) |
65202027 | 2714 | return (NV)SvUVX(sv); |
25da4f38 | 2715 | else |
65202027 | 2716 | return (NV)SvIVX(sv); |
25da4f38 | 2717 | } |
16d20bd9 | 2718 | if (!SvROK(sv)) { |
d008e5eb | 2719 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2720 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2721 | report_uninit(); |
c6ee37c5 | 2722 | } |
16d20bd9 AD |
2723 | return 0; |
2724 | } | |
463ee0b2 | 2725 | } |
ed6116ce | 2726 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2727 | if (SvROK(sv)) { |
a0d0e21e | 2728 | SV* tmpstr; |
1554e226 | 2729 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2730 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2731 | return SvNV(tmpstr); |
56431972 | 2732 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2733 | } |
8a818333 NIS |
2734 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2735 | sv_force_normal(sv); | |
2736 | } | |
0336b60e | 2737 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2738 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2739 | report_uninit(); |
ed6116ce LW |
2740 | return 0.0; |
2741 | } | |
79072805 LW |
2742 | } |
2743 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2744 | if (SvTYPE(sv) == SVt_IV) |
2745 | sv_upgrade(sv, SVt_PVNV); | |
2746 | else | |
2747 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2748 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2749 | DEBUG_c({ |
f93f4e46 | 2750 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2751 | PerlIO_printf(Perl_debug_log, |
2752 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2753 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2754 | RESTORE_NUMERIC_LOCAL(); |
2755 | }); | |
65202027 | 2756 | #else |
572bbb43 | 2757 | DEBUG_c({ |
f93f4e46 | 2758 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2759 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2760 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2761 | RESTORE_NUMERIC_LOCAL(); |
2762 | }); | |
572bbb43 | 2763 | #endif |
79072805 LW |
2764 | } |
2765 | else if (SvTYPE(sv) < SVt_PVNV) | |
2766 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2767 | if (SvNOKp(sv)) { |
2768 | return SvNVX(sv); | |
61604483 | 2769 | } |
59d8ce62 | 2770 | if (SvIOKp(sv)) { |
0da6cfda | 2771 | SvNV_set(sv, SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv)); |
28e5dec8 JH |
2772 | #ifdef NV_PRESERVES_UV |
2773 | SvNOK_on(sv); | |
2774 | #else | |
2775 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2776 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2777 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2778 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2779 | SvNOK_on(sv); | |
2780 | else | |
2781 | SvNOKp_on(sv); | |
2782 | #endif | |
93a17b20 | 2783 | } |
748a9306 | 2784 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 | 2785 | UV value; |
fdac8c4b | 2786 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
c2988b20 | 2787 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) |
a0d0e21e | 2788 | not_a_number(sv); |
28e5dec8 | 2789 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2790 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2791 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2792 | /* It's definitely an integer */ |
0da6cfda | 2793 | SvNV_set(sv, (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value); |
c2988b20 | 2794 | } else |
fdac8c4b | 2795 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 JH |
2796 | SvNOK_on(sv); |
2797 | #else | |
fdac8c4b | 2798 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 JH |
2799 | /* Only set the public NV OK flag if this NV preserves the value in |
2800 | the PV at least as well as an IV/UV would. | |
2801 | Not sure how to do this 100% reliably. */ | |
2802 | /* if that shift count is out of range then Configure's test is | |
2803 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2804 | UV_BITS */ | |
2805 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2806 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2807 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2808 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2809 | /* Can't use strtol etc to convert this string, so don't try. | |
2810 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2811 | SvNOK_on(sv); | |
2812 | } else { | |
2813 | /* value has been set. It may not be precise. */ | |
2814 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2815 | /* 2s complement assumption for (UV)IV_MIN */ | |
2816 | SvNOK_on(sv); /* Integer is too negative. */ | |
2817 | } else { | |
2818 | SvNOKp_on(sv); | |
2819 | SvIOKp_on(sv); | |
6fa402ec | 2820 | |
c2988b20 | 2821 | if (numtype & IS_NUMBER_NEG) { |
0da6cfda | 2822 | SvIV_set(sv, -(IV)value); |
c2988b20 | 2823 | } else if (value <= (UV)IV_MAX) { |
0da6cfda | 2824 | SvIV_set(sv, (IV)value); |
c2988b20 | 2825 | } else { |
0da6cfda | 2826 | SvUV_set(sv, value); |
c2988b20 NC |
2827 | SvIsUV_on(sv); |
2828 | } | |
2829 | ||
2830 | if (numtype & IS_NUMBER_NOT_INT) { | |
2831 | /* I believe that even if the original PV had decimals, | |
2832 | they are lost beyond the limit of the FP precision. | |
2833 | However, neither is canonical, so both only get p | |
2834 | flags. NWC, 2000/11/25 */ | |
2835 | /* Both already have p flags, so do nothing */ | |
2836 | } else { | |
2837 | NV nv = SvNVX(sv); | |
2838 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2839 | if (SvIVX(sv) == I_V(nv)) { | |
2840 | SvNOK_on(sv); | |
2841 | SvIOK_on(sv); | |
2842 | } else { | |
2843 | SvIOK_on(sv); | |
2844 | /* It had no "." so it must be integer. */ | |
2845 | } | |
2846 | } else { | |
2847 | /* between IV_MAX and NV(UV_MAX). | |
2848 | Could be slightly > UV_MAX */ | |
6fa402ec | 2849 | |
c2988b20 NC |
2850 | if (numtype & IS_NUMBER_NOT_INT) { |
2851 | /* UV and NV both imprecise. */ | |
2852 | } else { | |
2853 | UV nv_as_uv = U_V(nv); | |
2854 | ||
2855 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2856 | SvNOK_on(sv); | |
2857 | SvIOK_on(sv); | |
2858 | } else { | |
2859 | SvIOK_on(sv); | |
2860 | } | |
2861 | } | |
2862 | } | |
2863 | } | |
2864 | } | |
2865 | } | |
28e5dec8 | 2866 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2867 | } |
79072805 | 2868 | else { |
599cee73 | 2869 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2870 | report_uninit(); |
25da4f38 IZ |
2871 | if (SvTYPE(sv) < SVt_NV) |
2872 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2873 | /* XXX Ilya implies that this is a bug in callers that assume this |
2874 | and ideally should be fixed. */ | |
25da4f38 | 2875 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2876 | return 0.0; |
79072805 | 2877 | } |
572bbb43 | 2878 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2879 | DEBUG_c({ |
f93f4e46 | 2880 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2881 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2882 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2883 | RESTORE_NUMERIC_LOCAL(); |
2884 | }); | |
65202027 | 2885 | #else |
572bbb43 | 2886 | DEBUG_c({ |
f93f4e46 | 2887 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2888 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2889 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2890 | RESTORE_NUMERIC_LOCAL(); |
2891 | }); | |
572bbb43 | 2892 | #endif |
463ee0b2 | 2893 | return SvNVX(sv); |
79072805 LW |
2894 | } |
2895 | ||
645c22ef DM |
2896 | /* asIV(): extract an integer from the string value of an SV. |
2897 | * Caller must validate PVX */ | |
2898 | ||
76e3520e | 2899 | STATIC IV |
cea2e8a9 | 2900 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2901 | { |
c2988b20 | 2902 | UV value; |
fdac8c4b | 2903 | int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
c2988b20 NC |
2904 | |
2905 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2906 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2907 | /* It's definitely an integer */ |
c2988b20 NC |
2908 | if (numtype & IS_NUMBER_NEG) { |
2909 | if (value < (UV)IV_MIN) | |
2910 | return -(IV)value; | |
2911 | } else { | |
2912 | if (value < (UV)IV_MAX) | |
2913 | return (IV)value; | |
2914 | } | |
2915 | } | |
d008e5eb | 2916 | if (!numtype) { |
d008e5eb GS |
2917 | if (ckWARN(WARN_NUMERIC)) |
2918 | not_a_number(sv); | |
2919 | } | |
fdac8c4b | 2920 | return I_V(Atof(SvPVX_const(sv))); |
36477c24 | 2921 | } |
2922 | ||
645c22ef DM |
2923 | /* asUV(): extract an unsigned integer from the string value of an SV |
2924 | * Caller must validate PVX */ | |
2925 | ||
76e3520e | 2926 | STATIC UV |
cea2e8a9 | 2927 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2928 | { |
c2988b20 | 2929 | UV value; |
547d29e4 | 2930 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
36477c24 | 2931 | |
c2988b20 NC |
2932 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2933 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2934 | /* It's definitely an integer */ |
6fa402ec | 2935 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2936 | return value; |
2937 | } | |
d008e5eb | 2938 | if (!numtype) { |
d008e5eb GS |
2939 | if (ckWARN(WARN_NUMERIC)) |
2940 | not_a_number(sv); | |
2941 | } | |
fdac8c4b | 2942 | return U_V(Atof(SvPVX_const(sv))); |
36477c24 | 2943 | } |
2944 | ||
645c22ef DM |
2945 | /* |
2946 | =for apidoc sv_2pv_nolen | |
2947 | ||
2948 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2949 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2950 | =cut | |
2951 | */ | |
2952 | ||
79072805 | 2953 | char * |
864dbfa3 | 2954 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2955 | { |
2956 | STRLEN n_a; | |
2957 | return sv_2pv(sv, &n_a); | |
2958 | } | |
2959 | ||
645c22ef DM |
2960 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2961 | * UV as a string towards the end of buf, and return pointers to start and | |
2962 | * end of it. | |
2963 | * | |
2964 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2965 | */ | |
2966 | ||
864dbfa3 | 2967 | static char * |
25da4f38 IZ |
2968 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2969 | { | |
25da4f38 IZ |
2970 | char *ptr = buf + TYPE_CHARS(UV); |
2971 | char *ebuf = ptr; | |
2972 | int sign; | |
25da4f38 IZ |
2973 | |
2974 | if (is_uv) | |
2975 | sign = 0; | |
2976 | else if (iv >= 0) { | |
2977 | uv = iv; | |
2978 | sign = 0; | |
2979 | } else { | |
2980 | uv = -iv; | |
2981 | sign = 1; | |
2982 | } | |
2983 | do { | |
eb160463 | 2984 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
2985 | } while (uv /= 10); |
2986 | if (sign) | |
2987 | *--ptr = '-'; | |
2988 | *peob = ebuf; | |
2989 | return ptr; | |
2990 | } | |
2991 | ||
d34f9d2e JH |
2992 | /* sv_2pv() is now a macro using Perl_sv_2pv_flags(); |
2993 | * this function provided for binary compatibility only | |
2994 | */ | |
2995 | ||
2996 | char * | |
2997 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) | |
2998 | { | |
2999 | return sv_2pv_flags(sv, lp, SV_GMAGIC); | |
3000 | } | |
3001 | ||
645c22ef DM |
3002 | /* |
3003 | =for apidoc sv_2pv_flags | |
3004 | ||
ff276b08 | 3005 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
3006 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
3007 | if necessary. | |
3008 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
3009 | usually end up here too. | |
3010 | ||
3011 | =cut | |
3012 | */ | |
3013 | ||
8d6d96c1 HS |
3014 | char * |
3015 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
3016 | { | |
79072805 LW |
3017 | register char *s; |
3018 | int olderrno; | |
5b7ea690 | 3019 | SV *tsv, *origsv; |
25da4f38 IZ |
3020 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
3021 | char *tmpbuf = tbuf; | |
79072805 | 3022 | |
463ee0b2 LW |
3023 | if (!sv) { |
3024 | *lp = 0; | |
e2b56717 | 3025 | return (char *)""; |
463ee0b2 | 3026 | } |
8990e307 | 3027 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
3028 | if (flags & SV_GMAGIC) |
3029 | mg_get(sv); | |
463ee0b2 LW |
3030 | if (SvPOKp(sv)) { |
3031 | *lp = SvCUR(sv); | |
3032 | return SvPVX(sv); | |
3033 | } | |
cf2093f6 | 3034 | if (SvIOKp(sv)) { |
1c846c1f | 3035 | if (SvIsUV(sv)) |
57def98f | 3036 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 3037 | else |
57def98f | 3038 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 3039 | tsv = Nullsv; |
a0d0e21e | 3040 | goto tokensave; |
463ee0b2 LW |
3041 | } |
3042 | if (SvNOKp(sv)) { | |
2d4389e4 | 3043 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 3044 | tsv = Nullsv; |
a0d0e21e | 3045 | goto tokensave; |
463ee0b2 | 3046 | } |
16d20bd9 | 3047 | if (!SvROK(sv)) { |
d008e5eb | 3048 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 3049 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 3050 | report_uninit(); |
c6ee37c5 | 3051 | } |
16d20bd9 | 3052 | *lp = 0; |
e2b56717 | 3053 | return (char *)""; |
16d20bd9 | 3054 | } |
463ee0b2 | 3055 | } |
ed6116ce LW |
3056 | if (SvTHINKFIRST(sv)) { |
3057 | if (SvROK(sv)) { | |
a0d0e21e | 3058 | SV* tmpstr; |
c05e0e2f | 3059 | register const char *typestr; |
1554e226 | 3060 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
b4b9a328 | 3061 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) { |
5b7ea690 JH |
3062 | char *pv = SvPV(tmpstr, *lp); |
3063 | if (SvUTF8(tmpstr)) | |
3064 | SvUTF8_on(sv); | |
3065 | else | |
3066 | SvUTF8_off(sv); | |
3067 | return pv; | |
3068 | } | |
3069 | origsv = sv; | |
ed6116ce LW |
3070 | sv = (SV*)SvRV(sv); |
3071 | if (!sv) | |
c05e0e2f | 3072 | typestr = "NULLREF"; |
ed6116ce | 3073 | else { |
f9277f47 IZ |
3074 | MAGIC *mg; |
3075 | ||
ed6116ce | 3076 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
3077 | case SVt_PVMG: |
3078 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 3079 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
5835a535 | 3080 | == (SVs_OBJECT|SVs_SMG)) |
14befaf4 | 3081 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
c05e0e2f | 3082 | const regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 3083 | |
2cd61cdb | 3084 | if (!mg->mg_ptr) { |
c05e0e2f | 3085 | const char *fptr = "msix"; |
8782bef2 GB |
3086 | char reflags[6]; |
3087 | char ch; | |
3088 | int left = 0; | |
3089 | int right = 4; | |
ff385a1b | 3090 | char need_newline = 0; |
eb160463 | 3091 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 3092 | |
155aba94 | 3093 | while((ch = *fptr++)) { |
8782bef2 GB |
3094 | if(reganch & 1) { |
3095 | reflags[left++] = ch; | |
3096 | } | |
3097 | else { | |
3098 | reflags[right--] = ch; | |
3099 | } | |
3100 | reganch >>= 1; | |
3101 | } | |
3102 | if(left != 4) { | |
3103 | reflags[left] = '-'; | |
3104 | left = 5; | |
3105 | } | |
3106 | ||
3107 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
3108 | /* |
3109 | * If /x was used, we have to worry about a regex | |
3110 | * ending with a comment later being embedded | |
3111 | * within another regex. If so, we don't want this | |
3112 | * regex's "commentization" to leak out to the | |
3113 | * right part of the enclosing regex, we must cap | |
3114 | * it with a newline. | |
3115 | * | |
3116 | * So, if /x was used, we scan backwards from the | |
3117 | * end of the regex. If we find a '#' before we | |
3118 | * find a newline, we need to add a newline | |
3119 | * ourself. If we find a '\n' first (or if we | |
3120 | * don't find '#' or '\n'), we don't need to add | |
3121 | * anything. -jfriedl | |
3122 | */ | |
3123 | if (PMf_EXTENDED & re->reganch) | |
3124 | { | |
c05e0e2f | 3125 | const char *endptr = re->precomp + re->prelen; |
ff385a1b JF |
3126 | while (endptr >= re->precomp) |
3127 | { | |
c05e0e2f | 3128 | const char c = *(endptr--); |
ff385a1b JF |
3129 | if (c == '\n') |
3130 | break; /* don't need another */ | |
3131 | if (c == '#') { | |
3132 | /* we end while in a comment, so we | |
3133 | need a newline */ | |
3134 | mg->mg_len++; /* save space for it */ | |
3135 | need_newline = 1; /* note to add it */ | |
5b7ea690 | 3136 | break; |
ff385a1b JF |
3137 | } |
3138 | } | |
3139 | } | |
3140 | ||
8782bef2 GB |
3141 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); |
3142 | Copy("(?", mg->mg_ptr, 2, char); | |
3143 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3144 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3145 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3146 | if (need_newline) |
3147 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3148 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3149 | mg->mg_ptr[mg->mg_len] = 0; | |
3150 | } | |
3280af22 | 3151 | PL_reginterp_cnt += re->program[0].next_off; |
5b7ea690 JH |
3152 | |
3153 | if (re->reganch & ROPT_UTF8) | |
3154 | SvUTF8_on(origsv); | |
3155 | else | |
3156 | SvUTF8_off(origsv); | |
1bd3ad17 IZ |
3157 | *lp = mg->mg_len; |
3158 | return mg->mg_ptr; | |
f9277f47 IZ |
3159 | } |
3160 | /* Fall through */ | |
ed6116ce LW |
3161 | case SVt_NULL: |
3162 | case SVt_IV: | |
3163 | case SVt_NV: | |
3164 | case SVt_RV: | |
3165 | case SVt_PV: | |
3166 | case SVt_PVIV: | |
3167 | case SVt_PVNV: | |
c05e0e2f AL |
3168 | case SVt_PVBM: typestr = SvROK(sv) ? "REF" : "SCALAR"; break; |
3169 | case SVt_PVLV: typestr = SvROK(sv) ? "REF" | |
ac388100 JH |
3170 | /* tied lvalues should appear to be |
3171 | * scalars for backwards compatitbility */ | |
3172 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
3173 | ? "SCALAR" : "LVALUE"; break; | |
c05e0e2f AL |
3174 | case SVt_PVAV: typestr = "ARRAY"; break; |
3175 | case SVt_PVHV: typestr = "HASH"; break; | |
3176 | case SVt_PVCV: typestr = "CODE"; break; | |
3177 | case SVt_PVGV: typestr = "GLOB"; break; | |
3178 | case SVt_PVFM: typestr = "FORMAT"; break; | |
3179 | case SVt_PVIO: typestr = "IO"; break; | |
3180 | default: typestr = "UNKNOWN"; break; | |
ed6116ce | 3181 | } |
46fc3d4c | 3182 | tsv = NEWSV(0,0); |
3c71ae1e | 3183 | if (SvOBJECT(sv)) { |
26ab6a78 | 3184 | const char *name = HvNAME_get(SvSTASH(sv)); |
3c71ae1e | 3185 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s(0x%"UVxf")", |
c05e0e2f | 3186 | name ? name : "__ANON__" , typestr, PTR2UV(sv)); |
3c71ae1e | 3187 | } |
ed6116ce | 3188 | else |
c05e0e2f | 3189 | Perl_sv_setpvf(aTHX_ tsv, "%s(0x%"UVxf")", typestr, PTR2UV(sv)); |
a0d0e21e | 3190 | goto tokensaveref; |
463ee0b2 | 3191 | } |
c05e0e2f | 3192 | *lp = strlen(typestr); |
e2b56717 | 3193 | return (char *)typestr; |
79072805 | 3194 | } |
0336b60e | 3195 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3196 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3197 | report_uninit(); |
ed6116ce | 3198 | *lp = 0; |
e2b56717 | 3199 | return (char *)""; |
79072805 | 3200 | } |
79072805 | 3201 | } |
28e5dec8 JH |
3202 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3203 | /* I'm assuming that if both IV and NV are equally valid then | |
3204 | converting the IV is going to be more efficient */ | |
c05e0e2f AL |
3205 | const U32 isIOK = SvIOK(sv); |
3206 | const U32 isUIOK = SvIsUV(sv); | |
28e5dec8 JH |
3207 | char buf[TYPE_CHARS(UV)]; |
3208 | char *ebuf, *ptr; | |
3209 | ||
3210 | if (SvTYPE(sv) < SVt_PVIV) | |
3211 | sv_upgrade(sv, SVt_PVIV); | |
3212 | if (isUIOK) | |
3213 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3214 | else | |
3215 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
eb160463 | 3216 | SvGROW(sv, (STRLEN)(ebuf - ptr + 1)); /* inlined from sv_setpvn */ |
28e5dec8 JH |
3217 | Move(ptr,SvPVX(sv),ebuf - ptr,char); |
3218 | SvCUR_set(sv, ebuf - ptr); | |
3219 | s = SvEND(sv); | |
3220 | *s = '\0'; | |
3221 | if (isIOK) | |
3222 | SvIOK_on(sv); | |
3223 | else | |
3224 | SvIOKp_on(sv); | |
3225 | if (isUIOK) | |
3226 | SvIsUV_on(sv); | |
3227 | } | |
3228 | else if (SvNOKp(sv)) { | |
79072805 LW |
3229 | if (SvTYPE(sv) < SVt_PVNV) |
3230 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3231 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3232 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3233 | s = SvPVX(sv); |
79072805 | 3234 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3235 | #ifdef apollo |
463ee0b2 | 3236 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3237 | (void)strcpy(s,"0"); |
3238 | else | |
3239 | #endif /*apollo*/ | |
bbce6d69 | 3240 | { |
2d4389e4 | 3241 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3242 | } |
79072805 | 3243 | errno = olderrno; |
a0d0e21e LW |
3244 | #ifdef FIXNEGATIVEZERO |
3245 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3246 | strcpy(s,"0"); | |
3247 | #endif | |
79072805 LW |
3248 | while (*s) s++; |
3249 | #ifdef hcx | |
3250 | if (s[-1] == '.') | |
46fc3d4c | 3251 | *--s = '\0'; |
79072805 LW |
3252 | #endif |
3253 | } | |
79072805 | 3254 | else { |
0336b60e IZ |
3255 | if (ckWARN(WARN_UNINITIALIZED) |
3256 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3257 | report_uninit(); |
a0d0e21e | 3258 | *lp = 0; |
25da4f38 IZ |
3259 | if (SvTYPE(sv) < SVt_PV) |
3260 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3261 | sv_upgrade(sv, SVt_PV); | |
e2b56717 | 3262 | return (char *)""; |
79072805 | 3263 | } |
fdac8c4b | 3264 | *lp = s - SvPVX_const(sv); |
463ee0b2 | 3265 | SvCUR_set(sv, *lp); |
79072805 | 3266 | SvPOK_on(sv); |
1d7c1841 | 3267 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
fdac8c4b | 3268 | PTR2UV(sv),SvPVX_const(sv))); |
463ee0b2 | 3269 | return SvPVX(sv); |
a0d0e21e LW |
3270 | |
3271 | tokensave: | |
3272 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3273 | /* Sneaky stuff here */ | |
3274 | ||
3275 | tokensaveref: | |
46fc3d4c | 3276 | if (!tsv) |
96827780 | 3277 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3278 | sv_2mortal(tsv); |
3279 | *lp = SvCUR(tsv); | |
3280 | return SvPVX(tsv); | |
a0d0e21e LW |
3281 | } |
3282 | else { | |
3283 | STRLEN len; | |
e2b56717 | 3284 | const char *t; |
46fc3d4c | 3285 | |
3286 | if (tsv) { | |
3287 | sv_2mortal(tsv); | |
fdac8c4b | 3288 | t = SvPVX_const(tsv); |
46fc3d4c | 3289 | len = SvCUR(tsv); |
3290 | } | |
3291 | else { | |
96827780 MB |
3292 | t = tmpbuf; |
3293 | len = strlen(tmpbuf); | |
46fc3d4c | 3294 | } |
a0d0e21e | 3295 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3296 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3297 | t = "0"; | |
3298 | len = 1; | |
3299 | } | |
a0d0e21e LW |
3300 | #endif |
3301 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3302 | *lp = len; |
a0d0e21e LW |
3303 | s = SvGROW(sv, len + 1); |
3304 | SvCUR_set(sv, len); | |
6bf554b4 | 3305 | SvPOKp_on(sv); |
735fe74b | 3306 | return strcpy(s, t); |
a0d0e21e | 3307 | } |
463ee0b2 LW |
3308 | } |
3309 | ||
645c22ef | 3310 | /* |
6050d10e JP |
3311 | =for apidoc sv_copypv |
3312 | ||
3313 | Copies a stringified representation of the source SV into the | |
3314 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3315 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3316 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3317 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3318 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3319 | would lose the UTF-8'ness of the PV. |
3320 | ||
3321 | =cut | |
3322 | */ | |
3323 | ||
3324 | void | |
3325 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3326 | { | |
5b7ea690 JH |
3327 | STRLEN len; |
3328 | char *s; | |
3329 | s = SvPV(ssv,len); | |
3330 | sv_setpvn(dsv,s,len); | |
3331 | if (SvUTF8(ssv)) | |
3332 | SvUTF8_on(dsv); | |
3333 | else | |
3334 | SvUTF8_off(dsv); | |
6050d10e JP |
3335 | } |
3336 | ||
3337 | /* | |
645c22ef DM |
3338 | =for apidoc sv_2pvbyte_nolen |
3339 | ||
3340 | Return a pointer to the byte-encoded representation of the SV. | |
cd458e05 | 3341 | May cause the SV to be downgraded from UTF-8 as a side-effect. |
645c22ef DM |
3342 | |
3343 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3344 | ||
3345 | =cut | |
3346 | */ | |
3347 | ||
7340a771 GS |
3348 | char * |
3349 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3350 | { | |
560a288e GS |
3351 | STRLEN n_a; |
3352 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3353 | } |
3354 | ||
645c22ef DM |
3355 | /* |
3356 | =for apidoc sv_2pvbyte | |
3357 | ||
3358 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
cd458e05 | 3359 | to its length. May cause the SV to be downgraded from UTF-8 as a |
645c22ef DM |
3360 | side-effect. |
3361 | ||
3362 | Usually accessed via the C<SvPVbyte> macro. | |
3363 | ||
3364 | =cut | |
3365 | */ | |
3366 | ||
7340a771 GS |
3367 | char * |
3368 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3369 | { | |
0875d2fe NIS |
3370 | sv_utf8_downgrade(sv,0); |
3371 | return SvPV(sv,*lp); | |
7340a771 GS |
3372 | } |
3373 | ||
645c22ef DM |
3374 | /* |
3375 | =for apidoc sv_2pvutf8_nolen | |
3376 | ||
cd458e05 JH |
3377 | Return a pointer to the UTF-8-encoded representation of the SV. |
3378 | May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3379 | |
3380 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3381 | ||
3382 | =cut | |
3383 | */ | |
3384 | ||
7340a771 GS |
3385 | char * |
3386 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3387 | { | |
560a288e GS |
3388 | STRLEN n_a; |
3389 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3390 | } |
3391 | ||
645c22ef DM |
3392 | /* |
3393 | =for apidoc sv_2pvutf8 | |
3394 | ||
cd458e05 JH |
3395 | Return a pointer to the UTF-8-encoded representation of the SV, and set *lp |
3396 | to its length. May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3397 | |
3398 | Usually accessed via the C<SvPVutf8> macro. | |
3399 | ||
3400 | =cut | |
3401 | */ | |
3402 | ||
7340a771 GS |
3403 | char * |
3404 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3405 | { | |
560a288e | 3406 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3407 | return SvPV(sv,*lp); |
7340a771 | 3408 | } |
1c846c1f | 3409 | |
645c22ef DM |
3410 | /* |
3411 | =for apidoc sv_2bool | |
3412 | ||
3413 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3414 | sv_true() or its macro equivalent. |
645c22ef DM |
3415 | |
3416 | =cut | |
3417 | */ | |
3418 | ||
463ee0b2 | 3419 | bool |
864dbfa3 | 3420 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3421 | { |
8990e307 | 3422 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3423 | mg_get(sv); |
3424 | ||
a0d0e21e LW |
3425 | if (!SvOK(sv)) |
3426 | return 0; | |
3427 | if (SvROK(sv)) { | |
a0d0e21e | 3428 | SV* tmpsv; |
1554e226 | 3429 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3430 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3431 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3432 | return SvRV(sv) != 0; |
3433 | } | |
463ee0b2 | 3434 | if (SvPOKp(sv)) { |
11343788 MB |
3435 | register XPV* Xpvtmp; |
3436 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3437 | (*Xpvtmp->xpv_pv > '0' || | |
3438 | Xpvtmp->xpv_cur > 1 || | |
3439 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3440 | return 1; |
3441 | else | |
3442 | return 0; | |
3443 | } | |
3444 | else { | |
3445 | if (SvIOKp(sv)) | |
3446 | return SvIVX(sv) != 0; | |
3447 | else { | |
3448 | if (SvNOKp(sv)) | |
3449 | return SvNVX(sv) != 0.0; | |
3450 | else | |
3451 | return FALSE; | |
3452 | } | |
3453 | } | |
79072805 LW |
3454 | } |
3455 | ||
d34f9d2e JH |
3456 | /* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags(); |
3457 | * this function provided for binary compatibility only | |
3458 | */ | |
3459 | ||
3460 | ||
3461 | STRLEN | |
3462 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) | |
3463 | { | |
3464 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); | |
3465 | } | |
3466 | ||
c461cf8f JH |
3467 | /* |
3468 | =for apidoc sv_utf8_upgrade | |
3469 | ||
a48bc54f | 3470 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3471 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3472 | Always sets the SvUTF8 flag to avoid future validity checks even |
3473 | if all the bytes have hibit clear. | |
c461cf8f | 3474 | |
13a6c0e0 JH |
3475 | This is not as a general purpose byte encoding to Unicode interface: |
3476 | use the Encode extension for that. | |
3477 | ||
8d6d96c1 HS |
3478 | =for apidoc sv_utf8_upgrade_flags |
3479 | ||
a48bc54f | 3480 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3481 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3482 | Always sets the SvUTF8 flag to avoid future validity checks even |
3483 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3484 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3485 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3486 | ||
13a6c0e0 JH |
3487 | This is not as a general purpose byte encoding to Unicode interface: |
3488 | use the Encode extension for that. | |
3489 | ||
8d6d96c1 HS |
3490 | =cut |
3491 | */ | |
3492 | ||
3493 | STRLEN | |
3494 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3495 | { | |
d9835d7b NC |
3496 | if (sv == &PL_sv_undef) |
3497 | return 0; | |
e0e62c2a NIS |
3498 | if (!SvPOK(sv)) { |
3499 | STRLEN len = 0; | |
d6e8a192 NC |
3500 | if (SvREADONLY(sv) && (SvPOKp(sv) || SvIOKp(sv) || SvNOKp(sv))) { |
3501 | (void) sv_2pv_flags(sv,&len, flags); | |
3502 | if (SvUTF8(sv)) | |
3503 | return len; | |
3504 | } else { | |
3505 | (void) SvPV_force(sv,len); | |
3506 | } | |
e0e62c2a | 3507 | } |
4411f3b6 | 3508 | |
548f1cb8 | 3509 | if (SvUTF8(sv)) { |
4411f3b6 | 3510 | return SvCUR(sv); |
548f1cb8 | 3511 | } |
560a288e | 3512 | |
db42d148 NIS |
3513 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3514 | sv_force_normal(sv); | |
3515 | } | |
3516 | ||
6563884d | 3517 | if (PL_encoding && !(flags & SV_UTF8_NO_ENCODING)) |
799ef3cb | 3518 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3519 | else { /* Assume Latin-1/EBCDIC */ |
676a626c NC |
3520 | /* This function could be much more efficient if we |
3521 | * had a FLAG in SVs to signal if there are any hibit | |
3522 | * chars in the PV. Given that there isn't such a flag | |
3523 | * make the loop as fast as possible. */ | |
3524 | U8 *s = (U8 *) SvPVX(sv); | |
3525 | U8 *e = (U8 *) SvEND(sv); | |
3526 | U8 *t = s; | |
3527 | int hibit = 0; | |
3528 | ||
3529 | while (t < e) { | |
3530 | U8 ch = *t++; | |
3531 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3532 | break; | |
3533 | } | |
3534 | if (hibit) { | |
3535 | STRLEN len = SvCUR(sv) + 1; /* Plus the \0 */ | |
3536 | s = bytes_to_utf8((U8*)s, &len); | |
3537 | ||
3538 | SvPV_free(sv); /* No longer using what was there before. */ | |
3539 | ||
3540 | SvPV_set(sv, (char*)s); | |
3541 | SvCUR_set(sv, len - 1); | |
3542 | SvLEN_set(sv, len); /* No longer know the real size. */ | |
3543 | } | |
3544 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ | |
3545 | SvUTF8_on(sv); | |
560a288e | 3546 | } |
4411f3b6 | 3547 | return SvCUR(sv); |
560a288e GS |
3548 | } |
3549 | ||
c461cf8f JH |
3550 | /* |
3551 | =for apidoc sv_utf8_downgrade | |
3552 | ||
a48bc54f TS |
3553 | Attempts to convert the PV of an SV from characters to bytes. |
3554 | If the PV contains a character beyond byte, this conversion will fail; | |
3555 | in this case, either returns false or, if C<fail_ok> is not | |
c461cf8f JH |
3556 | true, croaks. |
3557 | ||
13a6c0e0 JH |
3558 | This is not as a general purpose Unicode to byte encoding interface: |
3559 | use the Encode extension for that. | |
3560 | ||
c461cf8f JH |
3561 | =cut |
3562 | */ | |
3563 | ||
560a288e GS |
3564 | bool |
3565 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3566 | { | |
a48bc54f | 3567 | if (SvPOKp(sv) && SvUTF8(sv)) { |
fa301091 | 3568 | if (SvCUR(sv)) { |
03cfe0ae | 3569 | U8 *s; |
652088fc | 3570 | STRLEN len; |
fa301091 | 3571 | |
652088fc JH |
3572 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3573 | sv_force_normal(sv); | |
03cfe0ae NIS |
3574 | s = (U8 *) SvPV(sv, len); |
3575 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3576 | if (fail_ok) |
3577 | return FALSE; | |
3578 | else { | |
3579 | if (PL_op) | |
3580 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3581 | OP_DESC(PL_op)); |
fa301091 JH |
3582 | else |
3583 | Perl_croak(aTHX_ "Wide character"); | |
3584 | } | |
4b3603a4 | 3585 | } |
a8dc4fe8 | 3586 | SvCUR_set(sv, len); |
67e989fb | 3587 | } |
560a288e | 3588 | } |
ffebcc3e | 3589 | SvUTF8_off(sv); |
560a288e GS |
3590 | return TRUE; |
3591 | } | |
3592 | ||
c461cf8f JH |
3593 | /* |
3594 | =for apidoc sv_utf8_encode | |
3595 | ||
a48bc54f TS |
3596 | Converts the PV of an SV to UTF-8, but then turns the C<SvUTF8> |
3597 | flag off so that it looks like octets again. | |
c461cf8f JH |
3598 | |
3599 | =cut | |
3600 | */ | |
3601 | ||
560a288e GS |
3602 | void |
3603 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3604 | { | |
4411f3b6 | 3605 | (void) sv_utf8_upgrade(sv); |
71410450 NC |
3606 | if (SvIsCOW(sv)) { |
3607 | sv_force_normal_flags(sv, 0); | |
3608 | } | |
3609 | if (SvREADONLY(sv)) { | |
3610 | Perl_croak(aTHX_ PL_no_modify); | |
3611 | } | |
560a288e GS |
3612 | SvUTF8_off(sv); |
3613 | } | |
3614 | ||
4411f3b6 NIS |
3615 | /* |
3616 | =for apidoc sv_utf8_decode | |
3617 | ||
a48bc54f TS |
3618 | If the PV of the SV is an octet sequence in UTF-8 |
3619 | and contains a multiple-byte character, the C<SvUTF8> flag is turned on | |
3620 | so that it looks like a character. If the PV contains only single-byte | |
3621 | characters, the C<SvUTF8> flag stays being off. | |
3622 | Scans PV for validity and returns false if the PV is invalid UTF-8. | |
4411f3b6 NIS |
3623 | |
3624 | =cut | |
3625 | */ | |
3626 | ||
560a288e GS |
3627 | bool |
3628 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3629 | { | |
a48bc54f | 3630 | if (SvPOKp(sv)) { |
63cd0674 NIS |
3631 | U8 *c; |
3632 | U8 *e; | |
9cbac4c7 | 3633 | |
645c22ef DM |
3634 | /* The octets may have got themselves encoded - get them back as |
3635 | * bytes | |
3636 | */ | |
3637 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3638 | return FALSE; |
3639 | ||
3640 | /* it is actually just a matter of turning the utf8 flag on, but | |
3641 | * we want to make sure everything inside is valid utf8 first. | |
3642 | */ | |
63cd0674 NIS |
3643 | c = (U8 *) SvPVX(sv); |
3644 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3645 | return FALSE; |
63cd0674 | 3646 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3647 | while (c < e) { |
c4d5f83a NIS |
3648 | U8 ch = *c++; |
3649 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3650 | SvUTF8_on(sv); |
3651 | break; | |
3652 | } | |
560a288e | 3653 | } |
560a288e GS |
3654 | } |
3655 | return TRUE; | |
3656 | } | |
3657 | ||
d34f9d2e JH |
3658 | /* sv_setsv() is now a macro using Perl_sv_setsv_flags(); |
3659 | * this function provided for binary compatibility only | |
3660 | */ | |
3661 | ||
3662 | void | |
3663 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) | |
3664 | { | |
3665 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); | |
3666 | } | |
3667 | ||
954c1994 GS |
3668 | /* |
3669 | =for apidoc sv_setsv | |
3670 | ||
645c22ef DM |
3671 | Copies the contents of the source SV C<ssv> into the destination SV |
3672 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3673 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3674 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3675 | content of the destination. | |
3676 | ||
3677 | You probably want to use one of the assortment of wrappers, such as | |
3678 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3679 | C<SvSetMagicSV_nosteal>. | |
3680 | ||
8d6d96c1 HS |
3681 | =for apidoc sv_setsv_flags |
3682 | ||
645c22ef DM |
3683 | Copies the contents of the source SV C<ssv> into the destination SV |
3684 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3685 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3686 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3687 | content of the destination. | |
3688 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
65daad90 NC |
3689 | C<ssv> if appropriate, else not. If the C<flags> parameter has the |
3690 | C<NOSTEAL> bit set then the buffers of temps will not be stolen. <sv_setsv> | |
3691 | and C<sv_setsv_nomg> are implemented in terms of this function. | |
645c22ef DM |
3692 | |
3693 | You probably want to use one of the assortment of wrappers, such as | |
3694 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3695 | C<SvSetMagicSV_nosteal>. | |
3696 | ||
3697 | This is the primary function for copying scalars, and most other | |
3698 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3699 | |
3700 | =cut | |
3701 | */ | |
3702 | ||
3703 | void | |
3704 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3705 | { | |
8990e307 LW |
3706 | register U32 sflags; |
3707 | register int dtype; | |
3708 | register int stype; | |
463ee0b2 | 3709 | |
79072805 LW |
3710 | if (sstr == dstr) |
3711 | return; | |
2213622d | 3712 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3713 | if (!sstr) |
3280af22 | 3714 | sstr = &PL_sv_undef; |
8990e307 LW |
3715 | stype = SvTYPE(sstr); |
3716 | dtype = SvTYPE(dstr); | |
79072805 | 3717 | |
a0d0e21e | 3718 | SvAMAGIC_off(dstr); |
7d7ce6cc JH |
3719 | if ( SvVOK(dstr) ) |
3720 | { | |
3721 | /* need to nuke the magic */ | |
3722 | mg_free(dstr); | |
3723 | SvRMAGICAL_off(dstr); | |
3724 | } | |
9e7bc3e8 | 3725 | |
463ee0b2 | 3726 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3727 | |
8990e307 | 3728 | switch (stype) { |
79072805 | 3729 | case SVt_NULL: |
aece5585 | 3730 | undef_sstr: |
20408e3c GS |
3731 | if (dtype != SVt_PVGV) { |
3732 | (void)SvOK_off(dstr); | |
3733 | return; | |
3734 | } | |
3735 | break; | |
463ee0b2 | 3736 | case SVt_IV: |
aece5585 GA |
3737 | if (SvIOK(sstr)) { |
3738 | switch (dtype) { | |
3739 | case SVt_NULL: | |
8990e307 | 3740 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3741 | break; |
3742 | case SVt_NV: | |
8990e307 | 3743 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3744 | break; |
3745 | case SVt_RV: | |
3746 | case SVt_PV: | |
a0d0e21e | 3747 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3748 | break; |
3749 | } | |
3750 | (void)SvIOK_only(dstr); | |
0da6cfda | 3751 | SvIV_set(dstr, SvIVX(sstr)); |
25da4f38 IZ |
3752 | if (SvIsUV(sstr)) |
3753 | SvIsUV_on(dstr); | |
27c9684d AP |
3754 | if (SvTAINTED(sstr)) |
3755 | SvTAINT(dstr); | |
aece5585 | 3756 | return; |
8990e307 | 3757 | } |
aece5585 GA |
3758 | goto undef_sstr; |
3759 | ||
463ee0b2 | 3760 | case SVt_NV: |
aece5585 GA |
3761 | if (SvNOK(sstr)) { |
3762 | switch (dtype) { | |
3763 | case SVt_NULL: | |
3764 | case SVt_IV: | |
8990e307 | 3765 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3766 | break; |
3767 | case SVt_RV: | |
3768 | case SVt_PV: | |
3769 | case SVt_PVIV: | |
a0d0e21e | 3770 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3771 | break; |
3772 | } | |
0da6cfda | 3773 | SvNV_set(dstr, SvNVX(sstr)); |
aece5585 | 3774 | (void)SvNOK_only(dstr); |
27c9684d AP |
3775 | if (SvTAINTED(sstr)) |
3776 | SvTAINT(dstr); | |
aece5585 | 3777 | return; |
8990e307 | 3778 | } |
aece5585 GA |
3779 | goto undef_sstr; |
3780 | ||
ed6116ce | 3781 | case SVt_RV: |
8990e307 | 3782 | if (dtype < SVt_RV) |
ed6116ce | 3783 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3784 | else if (dtype == SVt_PVGV && |
5e8f8cda | 3785 | SvROK(sstr) && SvTYPE(SvRV(sstr)) == SVt_PVGV) { |
c07a80fd | 3786 | sstr = SvRV(sstr); |
a5f75d66 | 3787 | if (sstr == dstr) { |
1d7c1841 GS |
3788 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3789 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3790 | { | |
a5f75d66 | 3791 | GvIMPORTED_on(dstr); |
1d7c1841 | 3792 | } |
a5f75d66 AD |
3793 | GvMULTI_on(dstr); |
3794 | return; | |
3795 | } | |
c07a80fd | 3796 | goto glob_assign; |
3797 | } | |
ed6116ce | 3798 | break; |
463ee0b2 | 3799 | case SVt_PV: |
fc36a67e | 3800 | case SVt_PVFM: |
8990e307 | 3801 | if (dtype < SVt_PV) |
463ee0b2 | 3802 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3803 | break; |
3804 | case SVt_PVIV: | |
8990e307 | 3805 | if (dtype < SVt_PVIV) |
463ee0b2 | 3806 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3807 | break; |
3808 | case SVt_PVNV: | |
8990e307 | 3809 | if (dtype < SVt_PVNV) |
463ee0b2 | 3810 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3811 | break; |
4633a7c4 LW |
3812 | case SVt_PVAV: |
3813 | case SVt_PVHV: | |
3814 | case SVt_PVCV: | |
4633a7c4 | 3815 | case SVt_PVIO: |
8c18bf38 AL |
3816 | { |
3817 | const char * const type = sv_reftype(sstr,0); | |
533c011a | 3818 | if (PL_op) |
8c18bf38 | 3819 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", type, OP_NAME(PL_op)); |
4633a7c4 | 3820 | else |
8c18bf38 AL |
3821 | Perl_croak(aTHX_ "Bizarre copy of %s", type); |
3822 | } | |
4633a7c4 LW |
3823 | break; |
3824 | ||
79072805 | 3825 | case SVt_PVGV: |
8990e307 | 3826 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3827 | glob_assign: |
a5f75d66 | 3828 | if (dtype != SVt_PVGV) { |
8c18bf38 AL |
3829 | const char * const name = GvNAME(sstr); |
3830 | const STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3831 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3832 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3833 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3834 | GvNAME(dstr) = savepvn(name, len); |
3835 | GvNAMELEN(dstr) = len; | |
3836 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3837 | } | |
7bac28a0 | 3838 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3839 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3840 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3841 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3842 | GvNAME(dstr)); |
5bd07a3d | 3843 | |
7fb37951 AMS |
3844 | #ifdef GV_UNIQUE_CHECK |
3845 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3846 | Perl_croak(aTHX_ PL_no_modify); |
3847 | } | |
3848 | #endif | |
3849 | ||
a0d0e21e | 3850 | (void)SvOK_off(dstr); |
a5f75d66 | 3851 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3852 | gp_free((GV*)dstr); |
79072805 | 3853 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3854 | if (SvTAINTED(sstr)) |
3855 | SvTAINT(dstr); | |
1d7c1841 GS |
3856 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3857 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3858 | { | |
a5f75d66 | 3859 | GvIMPORTED_on(dstr); |
1d7c1841 | 3860 | } |
a5f75d66 | 3861 | GvMULTI_on(dstr); |
79072805 LW |
3862 | return; |
3863 | } | |
3864 | /* FALL THROUGH */ | |
3865 | ||
3866 | default: | |
8d6d96c1 | 3867 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 3868 | mg_get(sstr); |
eb160463 | 3869 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
3870 | stype = SvTYPE(sstr); |
3871 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3872 | goto glob_assign; | |
3873 | } | |
3874 | } | |
ded42b9f | 3875 | if (stype == SVt_PVLV) |
6fc92669 | 3876 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3877 | else |
eb160463 | 3878 | (void)SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
3879 | } |
3880 | ||
8990e307 LW |
3881 | sflags = SvFLAGS(sstr); |
3882 | ||
3883 | if (sflags & SVf_ROK) { | |
3884 | if (dtype >= SVt_PV) { | |
3885 | if (dtype == SVt_PVGV) { | |
3886 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3887 | SV *dref = 0; | |
8c18bf38 | 3888 | const int intro = GvINTRO(dstr); |
a0d0e21e | 3889 | |
7fb37951 AMS |
3890 | #ifdef GV_UNIQUE_CHECK |
3891 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3892 | Perl_croak(aTHX_ PL_no_modify); |
3893 | } | |
3894 | #endif | |
3895 | ||
a0d0e21e | 3896 | if (intro) { |
a5f75d66 | 3897 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3898 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3899 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3900 | } |
a5f75d66 | 3901 | GvMULTI_on(dstr); |
8990e307 LW |
3902 | switch (SvTYPE(sref)) { |
3903 | case SVt_PVAV: | |
a0d0e21e | 3904 | if (intro) |
9b1c5f7e | 3905 | SAVEGENERICSV(GvAV(dstr)); |
a0d0e21e LW |
3906 | else |
3907 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3908 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3909 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3910 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3911 | { | |
a5f75d66 | 3912 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3913 | } |
8990e307 LW |
3914 | break; |
3915 | case SVt_PVHV: | |
a0d0e21e | 3916 | if (intro) |
9b1c5f7e | 3917 | SAVEGENERICSV(GvHV(dstr)); |
a0d0e21e LW |
3918 | else |
3919 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3920 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3921 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3922 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3923 | { | |
a5f75d66 | 3924 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3925 | } |
8990e307 LW |
3926 | break; |
3927 | case SVt_PVCV: | |
8ebc5c01 | 3928 | if (intro) { |
3929 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3930 | SvREFCNT_dec(GvCV(dstr)); | |
3931 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3932 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3933 | PL_sub_generation++; |
8ebc5c01 | 3934 | } |
9b1c5f7e | 3935 | SAVEGENERICSV(GvCV(dstr)); |
8ebc5c01 | 3936 | } |
68dc0745 | 3937 | else |
3938 | dref = (SV*)GvCV(dstr); | |
3939 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3940 | CV* cv = GvCV(dstr); |
4633a7c4 | 3941 | if (cv) { |
68dc0745 | 3942 | if (!GvCVGEN((GV*)dstr) && |
3943 | (CvROOT(cv) || CvXSUB(cv))) | |
3944 | { | |
7bac28a0 | 3945 | /* ahem, death to those who redefine |
3946 | * active sort subs */ | |
3280af22 NIS |
3947 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3948 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3949 | Perl_croak(aTHX_ |
7bac28a0 | 3950 | "Can't redefine active sort subroutine %s", |
3951 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3952 | /* Redefining a sub - warning is mandatory if |
3953 | it was a const and its value changed. */ | |
3954 | if (ckWARN(WARN_REDEFINE) | |
3955 | || (CvCONST(cv) | |
3956 | && (!CvCONST((CV*)sref) | |
3957 | || sv_cmp(cv_const_sv(cv), | |
3958 | cv_const_sv((CV*)sref))))) | |
3959 | { | |
9014280d | 3960 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 3961 | CvCONST(cv) |
910764e6 RGS |
3962 | ? "Constant subroutine %s::%s redefined" |
3963 | : "Subroutine %s::%s redefined", | |
26ab6a78 | 3964 | HvNAME_get(GvSTASH((GV*)dstr)), |
beab0874 JT |
3965 | GvENAME((GV*)dstr)); |
3966 | } | |
9607fc9c | 3967 | } |
fb24441d RGS |
3968 | if (!intro) |
3969 | cv_ckproto(cv, (GV*)dstr, | |
3970 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3971 | } |
a5f75d66 | 3972 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3973 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3974 | GvASSUMECV_on(dstr); |
3280af22 | 3975 | PL_sub_generation++; |
a5f75d66 | 3976 | } |
39bac7f7 | 3977 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3978 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3979 | { | |
a5f75d66 | 3980 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3981 | } |
8990e307 | 3982 | break; |
91bba347 LW |
3983 | case SVt_PVIO: |
3984 | if (intro) | |
9b1c5f7e | 3985 | SAVEGENERICSV(GvIOp(dstr)); |
91bba347 LW |
3986 | else |
3987 | dref = (SV*)GvIOp(dstr); | |
3988 | GvIOp(dstr) = (IO*)sref; | |
3989 | break; | |
f4d13ee9 JH |
3990 | case SVt_PVFM: |
3991 | if (intro) | |
9b1c5f7e | 3992 | SAVEGENERICSV(GvFORM(dstr)); |
f4d13ee9 JH |
3993 | else |
3994 | dref = (SV*)GvFORM(dstr); | |
3995 | GvFORM(dstr) = (CV*)sref; | |
3996 | break; | |
8990e307 | 3997 | default: |
a0d0e21e | 3998 | if (intro) |
9b1c5f7e | 3999 | SAVEGENERICSV(GvSV(dstr)); |
a0d0e21e LW |
4000 | else |
4001 | dref = (SV*)GvSV(dstr); | |
8990e307 | 4002 | GvSV(dstr) = sref; |
39bac7f7 | 4003 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
4004 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4005 | { | |
a5f75d66 | 4006 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 4007 | } |
8990e307 LW |
4008 | break; |
4009 | } | |
4010 | if (dref) | |
4011 | SvREFCNT_dec(dref); | |
27c9684d AP |
4012 | if (SvTAINTED(sstr)) |
4013 | SvTAINT(dstr); | |
8990e307 LW |
4014 | return; |
4015 | } | |
fdac8c4b | 4016 | if (SvPVX_const(dstr)) { |
676a626c | 4017 | SvPV_free(dstr); |
a8dc4fe8 SP |
4018 | SvLEN_set(dstr, 0); |
4019 | SvCUR_set(dstr, 0); | |
a0d0e21e | 4020 | } |
8990e307 | 4021 | } |
a0d0e21e | 4022 | (void)SvOK_off(dstr); |
a8dc4fe8 | 4023 | SvRV_set(dstr, SvREFCNT_inc(SvRV(sstr))); |
ed6116ce | 4024 | SvROK_on(dstr); |
8990e307 | 4025 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4026 | SvNOKp_on(dstr); |
4027 | /* Only set the public OK flag if the source has public OK. */ | |
4028 | if (sflags & SVf_NOK) | |
4029 | SvFLAGS(dstr) |= SVf_NOK; | |
0da6cfda | 4030 | SvNV_set(dstr, SvNVX(sstr)); |
ed6116ce | 4031 | } |
8990e307 | 4032 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4033 | (void)SvIOKp_on(dstr); |
4034 | if (sflags & SVf_IOK) | |
4035 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4036 | if (sflags & SVf_IVisUV) |
25da4f38 | 4037 | SvIsUV_on(dstr); |
0da6cfda | 4038 | SvIV_set(dstr, SvIVX(sstr)); |
ed6116ce | 4039 | } |
a0d0e21e LW |
4040 | if (SvAMAGIC(sstr)) { |
4041 | SvAMAGIC_on(dstr); | |
4042 | } | |
ed6116ce | 4043 | } |
8990e307 | 4044 | else if (sflags & SVp_POK) { |
79072805 LW |
4045 | |
4046 | /* | |
4047 | * Check to see if we can just swipe the string. If so, it's a | |
4048 | * possible small lose on short strings, but a big win on long ones. | |
fdac8c4b SP |
4049 | * It might even be a win on short strings if SvPVX_const(dstr) |
4050 | * has to be allocated and SvPVX_const(sstr) has to be freed. | |
79072805 LW |
4051 | */ |
4052 | ||
ff68c719 | 4053 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 4054 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
65daad90 | 4055 | (!(flags & SV_NOSTEAL)) && /* and we're allowed to steal temps */ |
1c846c1f | 4056 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 4057 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
4058 | /* and won't be needed again, potentially */ |
4059 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 4060 | { |
fdac8c4b | 4061 | if (SvPVX_const(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
4062 | if (SvOOK(dstr)) { |
4063 | SvFLAGS(dstr) &= ~SVf_OOK; | |
fdac8c4b | 4064 | Safefree(SvPVX_const(dstr) - SvIVX(dstr)); |
a5f75d66 | 4065 | } |
50483b2c | 4066 | else if (SvLEN(dstr)) |
fdac8c4b | 4067 | Safefree(SvPVX_const(dstr)); |
79072805 | 4068 | } |
a5f75d66 | 4069 | (void)SvPOK_only(dstr); |
463ee0b2 | 4070 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
4071 | SvLEN_set(dstr, SvLEN(sstr)); |
4072 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 4073 | |
79072805 | 4074 | SvTEMP_off(dstr); |
645c22ef | 4075 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
4076 | SvPV_set(sstr, Nullch); |
4077 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
4078 | SvCUR_set(sstr, 0); |
4079 | SvTEMP_off(sstr); | |
79072805 | 4080 | } |
645c22ef | 4081 | else { /* have to copy actual string */ |
8990e307 | 4082 | STRLEN len = SvCUR(sstr); |
645c22ef | 4083 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
fdac8c4b | 4084 | Move(SvPVX_const(sstr),SvPVX(dstr),len,char); |
8990e307 LW |
4085 | SvCUR_set(dstr, len); |
4086 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 4087 | (void)SvPOK_only(dstr); |
79072805 | 4088 | } |
9aa983d2 | 4089 | if (sflags & SVf_UTF8) |
a7cb1f99 | 4090 | SvUTF8_on(dstr); |
79072805 | 4091 | /*SUPPRESS 560*/ |
8990e307 | 4092 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4093 | SvNOKp_on(dstr); |
4094 | if (sflags & SVf_NOK) | |
4095 | SvFLAGS(dstr) |= SVf_NOK; | |
0da6cfda | 4096 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 | 4097 | } |
8990e307 | 4098 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4099 | (void)SvIOKp_on(dstr); |
4100 | if (sflags & SVf_IOK) | |
4101 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4102 | if (sflags & SVf_IVisUV) |
25da4f38 | 4103 | SvIsUV_on(dstr); |
0da6cfda | 4104 | SvIV_set(dstr, SvIVX(sstr)); |
79072805 | 4105 | } |
7d7ce6cc JH |
4106 | if ( SvVOK(sstr) ) { |
4107 | MAGIC *smg = mg_find(sstr,PERL_MAGIC_vstring); | |
4108 | sv_magic(dstr, NULL, PERL_MAGIC_vstring, | |
4109 | smg->mg_ptr, smg->mg_len); | |
4110 | SvRMAGICAL_on(dstr); | |
4111 | } | |
79072805 | 4112 | } |
8990e307 | 4113 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
4114 | if (sflags & SVf_IOK) |
4115 | (void)SvIOK_only(dstr); | |
4116 | else { | |
9cbac4c7 DM |
4117 | (void)SvOK_off(dstr); |
4118 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
4119 | } |
4120 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 4121 | if (sflags & SVf_IVisUV) |
25da4f38 | 4122 | SvIsUV_on(dstr); |
0da6cfda | 4123 | SvIV_set(dstr, SvIVX(sstr)); |
3332b3c1 JH |
4124 | if (sflags & SVp_NOK) { |
4125 | if (sflags & SVf_NOK) | |
4126 | (void)SvNOK_on(dstr); | |
4127 | else | |
4128 | (void)SvNOKp_on(dstr); | |
0da6cfda | 4129 | SvNV_set(dstr, SvNVX(sstr)); |
3332b3c1 JH |
4130 | } |
4131 | } | |
4132 | else if (sflags & SVp_NOK) { | |
4133 | if (sflags & SVf_NOK) | |
4134 | (void)SvNOK_only(dstr); | |
4135 | else { | |
9cbac4c7 | 4136 | (void)SvOK_off(dstr); |
3332b3c1 JH |
4137 | SvNOKp_on(dstr); |
4138 | } | |
0da6cfda | 4139 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 LW |
4140 | } |
4141 | else { | |
20408e3c | 4142 | if (dtype == SVt_PVGV) { |
e476b1b5 | 4143 | if (ckWARN(WARN_MISC)) |
9014280d | 4144 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
4145 | } |
4146 | else | |
4147 | (void)SvOK_off(dstr); | |
a0d0e21e | 4148 | } |
27c9684d AP |
4149 | if (SvTAINTED(sstr)) |
4150 | SvTAINT(dstr); | |
79072805 LW |
4151 | } |
4152 | ||
954c1994 GS |
4153 | /* |
4154 | =for apidoc sv_setsv_mg | |
4155 | ||
4156 | Like C<sv_setsv>, but also handles 'set' magic. | |
4157 | ||
4158 | =cut | |
4159 | */ | |
4160 | ||
79072805 | 4161 | void |
864dbfa3 | 4162 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4163 | { |
4164 | sv_setsv(dstr,sstr); | |
4165 | SvSETMAGIC(dstr); | |
4166 | } | |
4167 | ||
954c1994 GS |
4168 | /* |
4169 | =for apidoc sv_setpvn | |
4170 | ||
4171 | Copies a string into an SV. The C<len> parameter indicates the number of | |
611e9550 NC |
4172 | bytes to be copied. If the C<ptr> argument is NULL the SV will become |
4173 | undefined. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
954c1994 GS |
4174 | |
4175 | =cut | |
4176 | */ | |
4177 | ||
ef50df4b | 4178 | void |
864dbfa3 | 4179 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4180 | { |
c6f8c383 | 4181 | register char *dptr; |
22c522df | 4182 | |
2213622d | 4183 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4184 | if (!ptr) { |
a0d0e21e | 4185 | (void)SvOK_off(sv); |
463ee0b2 LW |
4186 | return; |
4187 | } | |
22c522df JH |
4188 | else { |
4189 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
8c18bf38 | 4190 | const IV iv = len; |
9c5ffd7c JH |
4191 | if (iv < 0) |
4192 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4193 | } |
6fc92669 | 4194 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4195 | |
79072805 | 4196 | SvGROW(sv, len + 1); |
c6f8c383 GA |
4197 | dptr = SvPVX(sv); |
4198 | Move(ptr,dptr,len,char); | |
4199 | dptr[len] = '\0'; | |
79072805 | 4200 | SvCUR_set(sv, len); |
1aa99e6b | 4201 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4202 | SvTAINT(sv); |
79072805 LW |
4203 | } |
4204 | ||
954c1994 GS |
4205 | /* |
4206 | =for apidoc sv_setpvn_mg | |
4207 | ||
4208 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4209 | ||
4210 | =cut | |
4211 | */ | |
4212 | ||
79072805 | 4213 | void |
864dbfa3 | 4214 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4215 | { |
4216 | sv_setpvn(sv,ptr,len); | |
4217 | SvSETMAGIC(sv); | |
4218 | } | |
4219 | ||
954c1994 GS |
4220 | /* |
4221 | =for apidoc sv_setpv | |
4222 | ||
4223 | Copies a string into an SV. The string must be null-terminated. Does not | |
4224 | handle 'set' magic. See C<sv_setpv_mg>. | |
4225 | ||
4226 | =cut | |
4227 | */ | |
4228 | ||
ef50df4b | 4229 | void |
864dbfa3 | 4230 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4231 | { |
4232 | register STRLEN len; | |
4233 | ||
2213622d | 4234 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4235 | if (!ptr) { |
a0d0e21e | 4236 | (void)SvOK_off(sv); |
463ee0b2 LW |
4237 | return; |
4238 | } | |
79072805 | 4239 | len = strlen(ptr); |
6fc92669 | 4240 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4241 | |
79072805 | 4242 | SvGROW(sv, len + 1); |
463ee0b2 | 4243 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4244 | SvCUR_set(sv, len); |
1aa99e6b | 4245 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4246 | SvTAINT(sv); |
4247 | } | |
4248 | ||
954c1994 GS |
4249 | /* |
4250 | =for apidoc sv_setpv_mg | |
4251 | ||
4252 | Like C<sv_setpv>, but also handles 'set' magic. | |
4253 | ||
4254 | =cut | |
4255 | */ | |
4256 | ||
463ee0b2 | 4257 | void |
864dbfa3 | 4258 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4259 | { |
4260 | sv_setpv(sv,ptr); | |
4261 | SvSETMAGIC(sv); | |
4262 | } | |
4263 | ||
954c1994 GS |
4264 | /* |
4265 | =for apidoc sv_usepvn | |
4266 | ||
4267 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4268 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4269 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4270 | string length, C<len>, must be supplied. This function will realloc the | |
4271 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4272 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4273 | See C<sv_usepvn_mg>. | |
4274 | ||
4275 | =cut | |
4276 | */ | |
4277 | ||
ef50df4b | 4278 | void |
864dbfa3 | 4279 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4280 | { |
9eaeeaca | 4281 | STRLEN allocate; |
2213622d | 4282 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4283 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4284 | if (!ptr) { |
a0d0e21e | 4285 | (void)SvOK_off(sv); |
463ee0b2 LW |
4286 | return; |
4287 | } | |
fdac8c4b | 4288 | if (SvPVX_const(sv)) |
676a626c | 4289 | SvPV_free(sv); |
9eaeeaca NC |
4290 | |
4291 | allocate = PERL_STRLEN_ROUNDUP(len + 1); | |
4292 | ptr = saferealloc (ptr, allocate); | |
0da6cfda | 4293 | SvPV_set(sv, ptr); |
463ee0b2 | 4294 | SvCUR_set(sv, len); |
9eaeeaca | 4295 | SvLEN_set(sv, allocate); |
463ee0b2 | 4296 | *SvEND(sv) = '\0'; |
1aa99e6b | 4297 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4298 | SvTAINT(sv); |
79072805 LW |
4299 | } |
4300 | ||
954c1994 GS |
4301 | /* |
4302 | =for apidoc sv_usepvn_mg | |
4303 | ||
4304 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4305 | ||
4306 | =cut | |
4307 | */ | |
4308 | ||
ef50df4b | 4309 | void |
864dbfa3 | 4310 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4311 | { |
51c1089b | 4312 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4313 | SvSETMAGIC(sv); |
4314 | } | |
4315 | ||
645c22ef DM |
4316 | /* |
4317 | =for apidoc sv_force_normal_flags | |
4318 | ||
4319 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4320 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4321 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4322 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4323 | ||
4324 | =cut | |
4325 | */ | |
4326 | ||
6fc92669 | 4327 | void |
840a7b70 | 4328 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4329 | { |
2213622d | 4330 | if (SvREADONLY(sv)) { |
1c846c1f | 4331 | if (SvFAKE(sv)) { |
fdac8c4b | 4332 | char *pvx = SvPVX_const(sv); |
1c846c1f NIS |
4333 | STRLEN len = SvCUR(sv); |
4334 | U32 hash = SvUVX(sv); | |
1624793d NC |
4335 | SvFAKE_off(sv); |
4336 | SvREADONLY_off(sv); | |
1c846c1f | 4337 | SvGROW(sv, len + 1); |
fdac8c4b | 4338 | Move(pvx,SvPVX_const(sv),len,char); |
1c846c1f | 4339 | *SvEND(sv) = '\0'; |
25716404 | 4340 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f | 4341 | } |
ef7b71f0 | 4342 | else if (IN_PERL_RUNTIME) |
cea2e8a9 | 4343 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4344 | } |
2213622d | 4345 | if (SvROK(sv)) |
840a7b70 | 4346 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4347 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4348 | sv_unglob(sv); | |
0f15f207 | 4349 | } |
1c846c1f | 4350 | |
645c22ef DM |
4351 | /* |
4352 | =for apidoc sv_force_normal | |
4353 | ||
4354 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4355 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4356 | an xpvmg. See also C<sv_force_normal_flags>. | |
4357 | ||
4358 | =cut | |
4359 | */ | |
4360 | ||
840a7b70 IZ |
4361 | void |
4362 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4363 | { | |
4364 | sv_force_normal_flags(sv, 0); | |
4365 | } | |
4366 | ||
954c1994 GS |
4367 | /* |
4368 | =for apidoc sv_chop | |
4369 | ||
1c846c1f | 4370 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4371 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4372 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4373 | string. Uses the "OOK hack". |
fdac8c4b | 4374 | Beware: after this function returns, C<ptr> and SvPVX_const(sv) may no longer |
b9219079 | 4375 | refer to the same chunk of data. |
954c1994 GS |
4376 | |
4377 | =cut | |
4378 | */ | |
4379 | ||
79072805 | 4380 | void |
645c22ef | 4381 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4382 | { |
4383 | register STRLEN delta; | |
a0d0e21e | 4384 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4385 | return; |
fdac8c4b | 4386 | delta = ptr - SvPVX_const(sv); |
2213622d | 4387 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4388 | if (SvTYPE(sv) < SVt_PVIV) |
4389 | sv_upgrade(sv,SVt_PVIV); | |
4390 | ||
4391 | if (!SvOOK(sv)) { | |
50483b2c | 4392 | if (!SvLEN(sv)) { /* make copy of shared string */ |
fdac8c4b | 4393 | const char *pvx = SvPVX_const(sv); |
50483b2c JD |
4394 | STRLEN len = SvCUR(sv); |
4395 | SvGROW(sv, len + 1); | |
fdac8c4b | 4396 | Move(pvx,SvPVX_const(sv),len,char); |
50483b2c JD |
4397 | *SvEND(sv) = '\0'; |
4398 | } | |
0da6cfda | 4399 | SvIV_set(sv, 0); |
e33c26d0 JH |
4400 | /* Same SvOOK_on but SvOOK_on does a SvIOK_off |
4401 | and we do that anyway inside the SvNIOK_off | |
4402 | */ | |
4403 | SvFLAGS(sv) |= SVf_OOK; | |
79072805 | 4404 | } |
e33c26d0 | 4405 | SvNIOK_off(sv); |
a8dc4fe8 SP |
4406 | SvLEN_set(sv, SvLEN(sv) - delta); |
4407 | SvCUR_set(sv, SvCUR(sv) - delta); | |
0da6cfda SP |
4408 | SvPV_set(sv, SvPVX(sv) + delta); |
4409 | SvIV_set(sv, SvIVX(sv) + delta); | |
79072805 LW |
4410 | } |
4411 | ||
d34f9d2e JH |
4412 | /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags(); |
4413 | * this function provided for binary compatibility only | |
4414 | */ | |
4415 | ||
4416 | void | |
4417 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) | |
4418 | { | |
4419 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); | |
4420 | } | |
4421 | ||
954c1994 GS |
4422 | /* |
4423 | =for apidoc sv_catpvn | |
4424 | ||
4425 | Concatenates the string onto the end of the string which is in the SV. The | |
cd458e05 JH |
4426 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4427 | status set, then the bytes appended should be valid UTF-8. | |
d5ce4a7c | 4428 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. |
954c1994 | 4429 | |
8d6d96c1 HS |
4430 | =for apidoc sv_catpvn_flags |
4431 | ||
4432 | Concatenates the string onto the end of the string which is in the SV. The | |
cd458e05 JH |
4433 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4434 | status set, then the bytes appended should be valid UTF-8. | |
8d6d96c1 HS |
4435 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if |
4436 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4437 | in terms of this function. | |
4438 | ||
4439 | =cut | |
4440 | */ | |
4441 | ||
4442 | void | |
4443 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4444 | { | |
4445 | STRLEN dlen; | |
24c2fff4 | 4446 | const char *dstr = SvPV_force_flags(dsv, dlen, flags); |
8d6d96c1 | 4447 | |
8d6d96c1 HS |
4448 | SvGROW(dsv, dlen + slen + 1); |
4449 | if (sstr == dstr) | |
fdac8c4b | 4450 | sstr = SvPVX_const(dsv); |
8d6d96c1 | 4451 | Move(sstr, SvPVX(dsv) + dlen, slen, char); |
a8dc4fe8 | 4452 | SvCUR_set(dsv, SvCUR(dsv) + slen); |
8d6d96c1 HS |
4453 | *SvEND(dsv) = '\0'; |
4454 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4455 | SvTAINT(dsv); | |
79072805 LW |
4456 | } |
4457 | ||
954c1994 GS |
4458 | /* |
4459 | =for apidoc sv_catpvn_mg | |
4460 | ||
4461 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4462 | ||
4463 | =cut | |
4464 | */ | |
4465 | ||
79072805 | 4466 | void |
864dbfa3 | 4467 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4468 | { |
4469 | sv_catpvn(sv,ptr,len); | |
4470 | SvSETMAGIC(sv); | |
4471 | } | |
4472 | ||
d34f9d2e JH |
4473 | /* sv_catsv() is now a macro using Perl_sv_catsv_flags(); |
4474 | * this function provided for binary compatibility only | |
4475 | */ | |
4476 | ||
4477 | void | |
4478 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4479 | { | |
4480 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4481 | } | |
4482 | ||
954c1994 GS |
4483 | /* |
4484 | =for apidoc sv_catsv | |
4485 | ||
13e8c8e3 JH |
4486 | Concatenates the string from SV C<ssv> onto the end of the string in |
4487 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4488 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4489 | |
8d6d96c1 HS |
4490 | =for apidoc sv_catsv_flags |
4491 | ||
4492 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4493 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4494 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4495 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4496 | ||
4497 | =cut */ | |
4498 | ||
ef50df4b | 4499 | void |
8d6d96c1 | 4500 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4501 | { |
13e8c8e3 JH |
4502 | char *spv; |
4503 | STRLEN slen; | |
46199a12 | 4504 | if (!ssv) |
79072805 | 4505 | return; |
46199a12 | 4506 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
4507 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4508 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4509 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4510 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4511 | dsv->sv_flags doesn't have that bit set. |
4512 | Andy Dougherty 12 Oct 2001 | |
4513 | */ | |
4514 | I32 sutf8 = DO_UTF8(ssv); | |
4515 | I32 dutf8; | |
13e8c8e3 | 4516 | |
8d6d96c1 HS |
4517 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4518 | mg_get(dsv); | |
4519 | dutf8 = DO_UTF8(dsv); | |
4520 | ||
4521 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4522 | if (dutf8) { |
46199a12 | 4523 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4524 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4525 | |
46199a12 | 4526 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4527 | spv = SvPV(csv, slen); |
13e8c8e3 | 4528 | } |
8d6d96c1 HS |
4529 | else |
4530 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4531 | } |
8d6d96c1 | 4532 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4533 | } |
79072805 LW |
4534 | } |
4535 | ||
954c1994 GS |
4536 | /* |
4537 | =for apidoc sv_catsv_mg | |
4538 | ||
4539 | Like C<sv_catsv>, but also handles 'set' magic. | |
4540 | ||
4541 | =cut | |
4542 | */ | |
4543 | ||
79072805 | 4544 | void |
46199a12 | 4545 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4546 | { |
46199a12 JH |
4547 | sv_catsv(dsv,ssv); |
4548 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4549 | } |
4550 | ||
954c1994 GS |
4551 | /* |
4552 | =for apidoc sv_catpv | |
4553 | ||
4554 | Concatenates the string onto the end of the string which is in the SV. | |
cd458e05 JH |
4555 | If the SV has the UTF-8 status set, then the bytes appended should be |
4556 | valid UTF-8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4557 | |
d5ce4a7c | 4558 | =cut */ |
954c1994 | 4559 | |
ef50df4b | 4560 | void |
0c981600 | 4561 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4562 | { |
4563 | register STRLEN len; | |
463ee0b2 | 4564 | STRLEN tlen; |
748a9306 | 4565 | char *junk; |
79072805 | 4566 | |
0c981600 | 4567 | if (!ptr) |
79072805 | 4568 | return; |
748a9306 | 4569 | junk = SvPV_force(sv, tlen); |
0c981600 | 4570 | len = strlen(ptr); |
463ee0b2 | 4571 | SvGROW(sv, tlen + len + 1); |
0c981600 | 4572 | if (ptr == junk) |
fdac8c4b | 4573 | ptr = SvPVX_const(sv); |
0c981600 | 4574 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
a8dc4fe8 | 4575 | SvCUR_set(sv, SvCUR(sv) + len); |
d41ff1b8 | 4576 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4577 | SvTAINT(sv); |
79072805 LW |
4578 | } |
4579 | ||
954c1994 GS |
4580 | /* |
4581 | =for apidoc sv_catpv_mg | |
4582 | ||
4583 | Like C<sv_catpv>, but also handles 'set' magic. | |
4584 | ||
4585 | =cut | |
4586 | */ | |
4587 | ||
ef50df4b | 4588 | void |
0c981600 | 4589 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4590 | { |
0c981600 | 4591 | sv_catpv(sv,ptr); |
ef50df4b GS |
4592 | SvSETMAGIC(sv); |
4593 | } | |
4594 | ||
645c22ef DM |
4595 | /* |
4596 | =for apidoc newSV | |
4597 | ||
4598 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4599 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4600 | macro. | |
4601 | ||
4602 | =cut | |
4603 | */ | |
4604 | ||
79072805 | 4605 | SV * |
864dbfa3 | 4606 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4607 | { |
4608 | register SV *sv; | |
1c846c1f | 4609 | |
4561caa4 | 4610 | new_SV(sv); |
79072805 LW |
4611 | if (len) { |
4612 | sv_upgrade(sv, SVt_PV); | |
4613 | SvGROW(sv, len + 1); | |
4614 | } | |
4615 | return sv; | |
4616 | } | |
954c1994 | 4617 | /* |
92110913 | 4618 | =for apidoc sv_magicext |
954c1994 | 4619 | |
68795e93 | 4620 | Adds magic to an SV, upgrading it if necessary. Applies the |
af70ddd4 | 4621 | supplied vtable and returns a pointer to the magic added. |
92110913 | 4622 | |
af70ddd4 NC |
4623 | Note that C<sv_magicext> will allow things that C<sv_magic> will not. |
4624 | In particular, you can add magic to SvREADONLY SVs, and add more than | |
4625 | one instance of the same 'how'. | |
645c22ef | 4626 | |
af70ddd4 NC |
4627 | If C<namlen> is greater than zero then a C<savepvn> I<copy> of C<name> is |
4628 | stored, if C<namlen> is zero then C<name> is stored as-is and - as another | |
4629 | special case - if C<(name && namlen == HEf_SVKEY)> then C<name> is assumed | |
4630 | to contain an C<SV*> and is stored as-is with its REFCNT incremented. | |
92110913 | 4631 | |
af70ddd4 | 4632 | (This is now used as a subroutine by C<sv_magic>.) |
954c1994 GS |
4633 | |
4634 | =cut | |
4635 | */ | |
92110913 NIS |
4636 | MAGIC * |
4637 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, MGVTBL *vtable, | |
4638 | const char* name, I32 namlen) | |
79072805 LW |
4639 | { |
4640 | MAGIC* mg; | |
68795e93 | 4641 | |
92110913 NIS |
4642 | if (SvTYPE(sv) < SVt_PVMG) { |
4643 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 4644 | } |
79072805 LW |
4645 | Newz(702,mg, 1, MAGIC); |
4646 | mg->mg_moremagic = SvMAGIC(sv); | |
a8dc4fe8 | 4647 | SvMAGIC_set(sv, mg); |
75f9d97a | 4648 | |
0df18620 NC |
4649 | /* Sometimes a magic contains a reference loop, where the sv and |
4650 | object refer to each other. To prevent a reference loop that | |
4651 | would prevent such objects being freed, we look for such loops | |
4652 | and if we find one we avoid incrementing the object refcount. | |
87f0b213 JH |
4653 | |
4654 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
8ccffa6a | 4655 | have its REFCNT incremented to keep it in existence. |
87f0b213 JH |
4656 | |
4657 | */ | |
14befaf4 DM |
4658 | if (!obj || obj == sv || |
4659 | how == PERL_MAGIC_arylen || | |
4660 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4661 | (SvTYPE(obj) == SVt_PVGV && |
4662 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4663 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 4664 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 4665 | { |
8990e307 | 4666 | mg->mg_obj = obj; |
75f9d97a | 4667 | } |
85e6fe83 | 4668 | else { |
8990e307 | 4669 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4670 | mg->mg_flags |= MGf_REFCOUNTED; |
4671 | } | |
8ccffa6a YST |
4672 | |
4673 | /* Normal self-ties simply pass a null object, and instead of | |
4674 | using mg_obj directly, use the SvTIED_obj macro to produce a | |
4675 | new RV as needed. For glob "self-ties", we are tieing the PVIO | |
4676 | with an RV obj pointing to the glob containing the PVIO. In | |
4677 | this case, to avoid a reference loop, we need to weaken the | |
4678 | reference. | |
4679 | */ | |
4680 | ||
4681 | if (how == PERL_MAGIC_tiedscalar && SvTYPE(sv) == SVt_PVIO && | |
4682 | obj && SvROK(obj) && GvIO(SvRV(obj)) == (IO*)sv) | |
4683 | { | |
4684 | sv_rvweaken(obj); | |
4685 | } | |
4686 | ||
79072805 | 4687 | mg->mg_type = how; |
565764a8 | 4688 | mg->mg_len = namlen; |
9cbac4c7 | 4689 | if (name) { |
92110913 | 4690 | if (namlen > 0) |
1edc1566 | 4691 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4692 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4693 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4694 | else |
92110913 | 4695 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4696 | } |
92110913 | 4697 | mg->mg_virtual = vtable; |
68795e93 | 4698 | |
92110913 NIS |
4699 | mg_magical(sv); |
4700 | if (SvGMAGICAL(sv)) | |
4701 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4702 | return mg; | |
4703 | } | |
4704 | ||
4705 | /* | |
4706 | =for apidoc sv_magic | |
1c846c1f | 4707 | |
92110913 NIS |
4708 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4709 | then adds a new magic item of type C<how> to the head of the magic list. | |
4710 | ||
af70ddd4 NC |
4711 | See C<sv_magicext> (which C<sv_magic> now calls) for a description of the |
4712 | handling of the C<name> and C<namlen> arguments. | |
4713 | ||
0df18620 NC |
4714 | You need to use C<sv_magicext> to add magic to SvREADONLY SVs and also |
4715 | to add more than one instance of the same 'how'. | |
4716 | ||
92110913 NIS |
4717 | =cut |
4718 | */ | |
4719 | ||
4720 | void | |
4721 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4722 | { |
c05e0e2f | 4723 | const MGVTBL *vtable = 0; |
92110913 | 4724 | MAGIC* mg; |
92110913 NIS |
4725 | |
4726 | if (SvREADONLY(sv)) { | |
ef7b71f0 | 4727 | if (IN_PERL_RUNTIME |
92110913 NIS |
4728 | && how != PERL_MAGIC_regex_global |
4729 | && how != PERL_MAGIC_bm | |
4730 | && how != PERL_MAGIC_fm | |
4731 | && how != PERL_MAGIC_sv | |
6125ae81 | 4732 | && how != PERL_MAGIC_backref |
92110913 NIS |
4733 | ) |
4734 | { | |
4735 | Perl_croak(aTHX_ PL_no_modify); | |
4736 | } | |
4737 | } | |
4738 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
4739 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
4740 | /* sv_magic() refuses to add a magic of the same 'how' as an |
4741 | existing one | |
92110913 NIS |
4742 | */ |
4743 | if (how == PERL_MAGIC_taint) | |
4744 | mg->mg_len |= 1; | |
4745 | return; | |
4746 | } | |
4747 | } | |
68795e93 | 4748 | |
79072805 | 4749 | switch (how) { |
14befaf4 | 4750 | case PERL_MAGIC_sv: |
92110913 | 4751 | vtable = &PL_vtbl_sv; |
79072805 | 4752 | break; |
14befaf4 | 4753 | case PERL_MAGIC_overload: |
92110913 | 4754 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 4755 | break; |
14befaf4 | 4756 | case PERL_MAGIC_overload_elem: |
92110913 | 4757 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 4758 | break; |
14befaf4 | 4759 | case PERL_MAGIC_overload_table: |
92110913 | 4760 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 4761 | break; |
14befaf4 | 4762 | case PERL_MAGIC_bm: |
92110913 | 4763 | vtable = &PL_vtbl_bm; |
79072805 | 4764 | break; |
14befaf4 | 4765 | case PERL_MAGIC_regdata: |
92110913 | 4766 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 4767 | break; |
14befaf4 | 4768 | case PERL_MAGIC_regdatum: |
92110913 | 4769 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 4770 | break; |
14befaf4 | 4771 | case PERL_MAGIC_env: |
92110913 | 4772 | vtable = &PL_vtbl_env; |
79072805 | 4773 | break; |
14befaf4 | 4774 | case PERL_MAGIC_fm: |
92110913 | 4775 | vtable = &PL_vtbl_fm; |
55497cff | 4776 | break; |
14befaf4 | 4777 | case PERL_MAGIC_envelem: |
92110913 | 4778 | vtable = &PL_vtbl_envelem; |
79072805 | 4779 | break; |
14befaf4 | 4780 | case PERL_MAGIC_regex_global: |
92110913 | 4781 | vtable = &PL_vtbl_mglob; |
93a17b20 | 4782 | break; |
14befaf4 | 4783 | case PERL_MAGIC_isa: |
92110913 | 4784 | vtable = &PL_vtbl_isa; |
463ee0b2 | 4785 | break; |
14befaf4 | 4786 | case PERL_MAGIC_isaelem: |
92110913 | 4787 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 4788 | break; |
14befaf4 | 4789 | case PERL_MAGIC_nkeys: |
92110913 | 4790 | vtable = &PL_vtbl_nkeys; |
16660edb | 4791 | break; |
14befaf4 | 4792 | case PERL_MAGIC_dbfile: |
92110913 | 4793 | vtable = 0; |
93a17b20 | 4794 | break; |
14befaf4 | 4795 | case PERL_MAGIC_dbline: |
92110913 | 4796 | vtable = &PL_vtbl_dbline; |
79072805 | 4797 | break; |
4d1ff10f | 4798 | #ifdef USE_5005THREADS |
14befaf4 | 4799 | case PERL_MAGIC_mutex: |
92110913 | 4800 | vtable = &PL_vtbl_mutex; |
f93b4edd | 4801 | break; |
4d1ff10f | 4802 | #endif /* USE_5005THREADS */ |
36477c24 | 4803 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4804 | case PERL_MAGIC_collxfrm: |
92110913 | 4805 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 4806 | break; |
36477c24 | 4807 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4808 | case PERL_MAGIC_tied: |
92110913 | 4809 | vtable = &PL_vtbl_pack; |
463ee0b2 | 4810 | break; |
14befaf4 DM |
4811 | case PERL_MAGIC_tiedelem: |
4812 | case PERL_MAGIC_tiedscalar: | |
92110913 | 4813 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 4814 | break; |
14befaf4 | 4815 | case PERL_MAGIC_qr: |
92110913 | 4816 | vtable = &PL_vtbl_regexp; |
c277df42 | 4817 | break; |
14befaf4 | 4818 | case PERL_MAGIC_sig: |
92110913 | 4819 | vtable = &PL_vtbl_sig; |
79072805 | 4820 | break; |
14befaf4 | 4821 | case PERL_MAGIC_sigelem: |
92110913 | 4822 | vtable = &PL_vtbl_sigelem; |
79072805 | 4823 | break; |
14befaf4 | 4824 | case PERL_MAGIC_taint: |
92110913 | 4825 | vtable = &PL_vtbl_taint; |
463ee0b2 | 4826 | break; |
14befaf4 | 4827 | case PERL_MAGIC_uvar: |
92110913 | 4828 | vtable = &PL_vtbl_uvar; |
79072805 | 4829 | break; |
14befaf4 | 4830 | case PERL_MAGIC_vec: |
92110913 | 4831 | vtable = &PL_vtbl_vec; |
79072805 | 4832 | break; |
7d7ce6cc JH |
4833 | case PERL_MAGIC_vstring: |
4834 | vtable = 0; | |
4835 | break; | |
323eb6b5 JH |
4836 | case PERL_MAGIC_utf8: |
4837 | vtable = &PL_vtbl_utf8; | |
4838 | break; | |
14befaf4 | 4839 | case PERL_MAGIC_substr: |
92110913 | 4840 | vtable = &PL_vtbl_substr; |
79072805 | 4841 | break; |
14befaf4 | 4842 | case PERL_MAGIC_defelem: |
92110913 | 4843 | vtable = &PL_vtbl_defelem; |
5f05dabc | 4844 | break; |
14befaf4 | 4845 | case PERL_MAGIC_glob: |
92110913 | 4846 | vtable = &PL_vtbl_glob; |
79072805 | 4847 | break; |
14befaf4 | 4848 | case PERL_MAGIC_arylen: |
92110913 | 4849 | vtable = &PL_vtbl_arylen; |
79072805 | 4850 | break; |
14befaf4 | 4851 | case PERL_MAGIC_pos: |
92110913 | 4852 | vtable = &PL_vtbl_pos; |
a0d0e21e | 4853 | break; |
14befaf4 | 4854 | case PERL_MAGIC_backref: |
92110913 | 4855 | vtable = &PL_vtbl_backref; |
810b8aa5 | 4856 | break; |
14befaf4 DM |
4857 | case PERL_MAGIC_ext: |
4858 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4859 | /* Useful for attaching extension internal data to perl vars. */ |
4860 | /* Note that multiple extensions may clash if magical scalars */ | |
4861 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 4862 | break; |
79072805 | 4863 | default: |
14befaf4 | 4864 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4865 | } |
68795e93 | 4866 | |
92110913 NIS |
4867 | /* Rest of work is done else where */ |
4868 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); | |
68795e93 | 4869 | |
92110913 NIS |
4870 | switch (how) { |
4871 | case PERL_MAGIC_taint: | |
4872 | mg->mg_len = 1; | |
4873 | break; | |
4874 | case PERL_MAGIC_ext: | |
4875 | case PERL_MAGIC_dbfile: | |
4876 | SvRMAGICAL_on(sv); | |
4877 | break; | |
4878 | } | |
463ee0b2 LW |
4879 | } |
4880 | ||
c461cf8f JH |
4881 | /* |
4882 | =for apidoc sv_unmagic | |
4883 | ||
645c22ef | 4884 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4885 | |
4886 | =cut | |
4887 | */ | |
4888 | ||
463ee0b2 | 4889 | int |
864dbfa3 | 4890 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4891 | { |
4892 | MAGIC* mg; | |
4893 | MAGIC** mgp; | |
91bba347 | 4894 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4895 | return 0; |
4896 | mgp = &SvMAGIC(sv); | |
4897 | for (mg = *mgp; mg; mg = *mgp) { | |
4898 | if (mg->mg_type == type) { | |
c05e0e2f | 4899 | const MGVTBL* const vtbl = mg->mg_virtual; |
463ee0b2 | 4900 | *mgp = mg->mg_moremagic; |
1d7c1841 | 4901 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4902 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4903 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 4904 | if (mg->mg_len > 0) |
1edc1566 | 4905 | Safefree(mg->mg_ptr); |
565764a8 | 4906 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4907 | SvREFCNT_dec((SV*)mg->mg_ptr); |
323eb6b5 JH |
4908 | else if (mg->mg_type == PERL_MAGIC_utf8 && mg->mg_ptr) |
4909 | Safefree(mg->mg_ptr); | |
9cbac4c7 | 4910 | } |
a0d0e21e LW |
4911 | if (mg->mg_flags & MGf_REFCOUNTED) |
4912 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4913 | Safefree(mg); |
4914 | } | |
4915 | else | |
4916 | mgp = &mg->mg_moremagic; | |
79072805 | 4917 | } |
91bba347 | 4918 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4919 | SvMAGICAL_off(sv); |
06759ea0 | 4920 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4921 | } |
4922 | ||
4923 | return 0; | |
79072805 LW |
4924 | } |
4925 | ||
c461cf8f JH |
4926 | /* |
4927 | =for apidoc sv_rvweaken | |
4928 | ||
645c22ef DM |
4929 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4930 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4931 | push a back-reference to this RV onto the array of backreferences | |
4932 | associated with that magic. | |
c461cf8f JH |
4933 | |
4934 | =cut | |
4935 | */ | |
4936 | ||
810b8aa5 | 4937 | SV * |
864dbfa3 | 4938 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4939 | { |
4940 | SV *tsv; | |
4941 | if (!SvOK(sv)) /* let undefs pass */ | |
4942 | return sv; | |
4943 | if (!SvROK(sv)) | |
cea2e8a9 | 4944 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4945 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4946 | if (ckWARN(WARN_MISC)) |
9014280d | 4947 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
4948 | return sv; |
4949 | } | |
4950 | tsv = SvRV(sv); | |
4951 | sv_add_backref(tsv, sv); | |
4952 | SvWEAKREF_on(sv); | |
1c846c1f | 4953 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4954 | return sv; |
4955 | } | |
4956 | ||
645c22ef DM |
4957 | /* Give tsv backref magic if it hasn't already got it, then push a |
4958 | * back-reference to sv onto the array associated with the backref magic. | |
4959 | */ | |
4960 | ||
810b8aa5 | 4961 | STATIC void |
cea2e8a9 | 4962 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4963 | { |
4964 | AV *av; | |
4965 | MAGIC *mg; | |
14befaf4 | 4966 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4967 | av = (AV*)mg->mg_obj; |
4968 | else { | |
4969 | av = newAV(); | |
14befaf4 | 4970 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
219ef941 JH |
4971 | /* av now has a refcnt of 2, which avoids it getting freed |
4972 | * before us during global cleanup. The extra ref is removed | |
4973 | * by magic_killbackrefs() when tsv is being freed */ | |
810b8aa5 | 4974 | } |
f8cf5370 | 4975 | if (AvFILLp(av) >= AvMAX(av)) { |
f8cf5370 JH |
4976 | av_extend(av, AvFILLp(av)+1); |
4977 | } | |
4978 | AvARRAY(av)[++AvFILLp(av)] = sv; /* av_push() */ | |
810b8aa5 GS |
4979 | } |
4980 | ||
645c22ef DM |
4981 | /* delete a back-reference to ourselves from the backref magic associated |
4982 | * with the SV we point to. | |
4983 | */ | |
4984 | ||
1c846c1f | 4985 | STATIC void |
cea2e8a9 | 4986 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4987 | { |
4988 | AV *av; | |
4989 | SV **svp; | |
4990 | I32 i; | |
4991 | SV *tsv = SvRV(sv); | |
c04a4dfe | 4992 | MAGIC *mg = NULL; |
14befaf4 | 4993 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4994 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4995 | av = (AV *)mg->mg_obj; |
4996 | svp = AvARRAY(av); | |
0fa9aa63 NC |
4997 | /* We shouldn't be in here more than once, but for paranoia reasons lets |
4998 | not assume this. */ | |
4999 | for (i = AvFILLp(av); i >= 0; i--) { | |
5000 | if (svp[i] == sv) { | |
5001 | const SSize_t fill = AvFILLp(av); | |
5002 | if (i != fill) { | |
5003 | /* We weren't the last entry. | |
5004 | An unordered list has this property that you can take the | |
5005 | last element off the end to fill the hole, and it's still | |
5006 | an unordered list :-) | |
5007 | */ | |
5008 | svp[i] = svp[fill]; | |
5009 | } | |
5010 | svp[fill] = Nullsv; | |
5011 | AvFILLp(av) = fill - 1; | |
5012 | } | |
5013 | } | |
810b8aa5 GS |
5014 | } |
5015 | ||
954c1994 GS |
5016 | /* |
5017 | =for apidoc sv_insert | |
5018 | ||
5019 | Inserts a string at the specified offset/length within the SV. Similar to | |
5020 | the Perl substr() function. | |
5021 | ||
5022 | =cut | |
5023 | */ | |
5024 | ||
79072805 | 5025 | void |
864dbfa3 | 5026 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
5027 | { |
5028 | register char *big; | |
5029 | register char *mid; | |
5030 | register char *midend; | |
5031 | register char *bigend; | |
5032 | register I32 i; | |
6ff81951 | 5033 | STRLEN curlen; |
1c846c1f | 5034 | |
79072805 | 5035 | |
8990e307 | 5036 | if (!bigstr) |
cea2e8a9 | 5037 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 5038 | SvPV_force(bigstr, curlen); |
60fa28ff | 5039 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
5040 | if (offset + len > curlen) { |
5041 | SvGROW(bigstr, offset+len+1); | |
fdac8c4b | 5042 | Zero(SvPVX_const(bigstr)+curlen, offset+len-curlen, char); |
6ff81951 GS |
5043 | SvCUR_set(bigstr, offset+len); |
5044 | } | |
79072805 | 5045 | |
69b47968 | 5046 | SvTAINT(bigstr); |
79072805 LW |
5047 | i = littlelen - len; |
5048 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 5049 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
5050 | mid = big + offset + len; |
5051 | midend = bigend = big + SvCUR(bigstr); | |
5052 | bigend += i; | |
5053 | *bigend = '\0'; | |
5054 | while (midend > mid) /* shove everything down */ | |
5055 | *--bigend = *--midend; | |
5056 | Move(little,big+offset,littlelen,char); | |
a8dc4fe8 | 5057 | SvCUR_set(bigstr, SvCUR(bigstr) + i); |
79072805 LW |
5058 | SvSETMAGIC(bigstr); |
5059 | return; | |
5060 | } | |
5061 | else if (i == 0) { | |
463ee0b2 | 5062 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
5063 | SvSETMAGIC(bigstr); |
5064 | return; | |
5065 | } | |
5066 | ||
463ee0b2 | 5067 | big = SvPVX(bigstr); |
79072805 LW |
5068 | mid = big + offset; |
5069 | midend = mid + len; | |
5070 | bigend = big + SvCUR(bigstr); | |
5071 | ||
5072 | if (midend > bigend) | |
cea2e8a9 | 5073 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
5074 | |
5075 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
5076 | if (littlelen) { | |
5077 | Move(little, mid, littlelen,char); | |
5078 | mid += littlelen; | |
5079 | } | |
5080 | i = bigend - midend; | |
5081 | if (i > 0) { | |
5082 | Move(midend, mid, i,char); | |
5083 | mid += i; | |
5084 | } | |
5085 | *mid = '\0'; | |
5086 | SvCUR_set(bigstr, mid - big); | |
5087 | } | |
5088 | /*SUPPRESS 560*/ | |
155aba94 | 5089 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
5090 | midend -= littlelen; |
5091 | mid = midend; | |
5092 | sv_chop(bigstr,midend-i); | |
5093 | big += i; | |
5094 | while (i--) | |
5095 | *--midend = *--big; | |
5096 | if (littlelen) | |
5097 | Move(little, mid, littlelen,char); | |
5098 | } | |
5099 | else if (littlelen) { | |
5100 | midend -= littlelen; | |
5101 | sv_chop(bigstr,midend); | |
5102 | Move(little,midend,littlelen,char); | |
5103 | } | |
5104 | else { | |
5105 | sv_chop(bigstr,midend); | |
5106 | } | |
5107 | SvSETMAGIC(bigstr); | |
5108 | } | |
5109 | ||
c461cf8f JH |
5110 | /* |
5111 | =for apidoc sv_replace | |
5112 | ||
5113 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
5114 | The target SV physically takes over ownership of the body of the source SV |
5115 | and inherits its flags; however, the target keeps any magic it owns, | |
5116 | and any magic in the source is discarded. | |
ff276b08 | 5117 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 5118 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
5119 | |
5120 | =cut | |
5121 | */ | |
79072805 LW |
5122 | |
5123 | void | |
864dbfa3 | 5124 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 | 5125 | { |
8c18bf38 | 5126 | const U32 refcnt = SvREFCNT(sv); |
2213622d | 5127 | SV_CHECK_THINKFIRST(sv); |
0453d815 | 5128 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 5129 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 5130 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
5131 | if (SvMAGICAL(nsv)) |
5132 | mg_free(nsv); | |
5133 | else | |
5134 | sv_upgrade(nsv, SVt_PVMG); | |
a8dc4fe8 | 5135 | SvMAGIC_set(nsv, SvMAGIC(sv)); |
a0d0e21e | 5136 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 | 5137 | SvMAGICAL_off(sv); |
a8dc4fe8 | 5138 | SvMAGIC_set(sv, NULL); |
93a17b20 | 5139 | } |
79072805 LW |
5140 | SvREFCNT(sv) = 0; |
5141 | sv_clear(sv); | |
477f5d66 | 5142 | assert(!SvREFCNT(sv)); |
79072805 LW |
5143 | StructCopy(nsv,sv,SV); |
5144 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 5145 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
007262b0 | 5146 | SvREFCNT(nsv) = 0; |
463ee0b2 | 5147 | del_SV(nsv); |
79072805 LW |
5148 | } |
5149 | ||
c461cf8f JH |
5150 | /* |
5151 | =for apidoc sv_clear | |
5152 | ||
645c22ef DM |
5153 | Clear an SV: call any destructors, free up any memory used by the body, |
5154 | and free the body itself. The SV's head is I<not> freed, although | |
5155 | its type is set to all 1's so that it won't inadvertently be assumed | |
5156 | to be live during global destruction etc. | |
5157 | This function should only be called when REFCNT is zero. Most of the time | |
5158 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
5159 | instead. | |
c461cf8f JH |
5160 | |
5161 | =cut | |
5162 | */ | |
5163 | ||
79072805 | 5164 | void |
864dbfa3 | 5165 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 5166 | { |
ec12f114 | 5167 | HV* stash; |
79072805 LW |
5168 | assert(sv); |
5169 | assert(SvREFCNT(sv) == 0); | |
5170 | ||
ed6116ce | 5171 | if (SvOBJECT(sv)) { |
3280af22 | 5172 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 5173 | dSP; |
32251b26 | 5174 | CV* destructor; |
a0d0e21e | 5175 | |
3e5ba712 | 5176 | |
8ebc5c01 | 5177 | |
d460ef45 | 5178 | do { |
4e8e7886 | 5179 | stash = SvSTASH(sv); |
32251b26 | 5180 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 | 5181 | if (destructor) { |
3e5ba712 JH |
5182 | SV* tmpref = newRV(sv); |
5183 | SvREADONLY_on(tmpref); /* DESTROY() could be naughty */ | |
4e8e7886 | 5184 | ENTER; |
e788e7d3 | 5185 | PUSHSTACKi(PERLSI_DESTROY); |
4e8e7886 GS |
5186 | EXTEND(SP, 2); |
5187 | PUSHMARK(SP); | |
3e5ba712 | 5188 | PUSHs(tmpref); |
4e8e7886 | 5189 | PUTBACK; |
44389ee9 | 5190 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR|G_VOID); |
3e5ba712 JH |
5191 | |
5192 | ||
d3acc0f7 | 5193 | POPSTACK; |
3095d977 | 5194 | SPAGAIN; |
4e8e7886 | 5195 | LEAVE; |
3e5ba712 JH |
5196 | if(SvREFCNT(tmpref) < 2) { |
5197 | /* tmpref is not kept alive! */ | |
5198 | SvREFCNT(sv)--; | |
a8dc4fe8 | 5199 | SvRV_set(tmpref, NULL); |
3e5ba712 JH |
5200 | SvROK_off(tmpref); |
5201 | } | |
5202 | SvREFCNT_dec(tmpref); | |
4e8e7886 GS |
5203 | } |
5204 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 5205 | |
6f44e0a4 JP |
5206 | |
5207 | if (SvREFCNT(sv)) { | |
5208 | if (PL_in_clean_objs) | |
cea2e8a9 | 5209 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
26ab6a78 | 5210 | HvNAME_get(stash)); |
6f44e0a4 JP |
5211 | /* DESTROY gave object new lease on life */ |
5212 | return; | |
5213 | } | |
a0d0e21e | 5214 | } |
4e8e7886 | 5215 | |
a0d0e21e | 5216 | if (SvOBJECT(sv)) { |
4e8e7886 | 5217 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
5218 | SvOBJECT_off(sv); /* Curse the object. */ |
5219 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 5220 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 5221 | } |
463ee0b2 | 5222 | } |
524189f1 JH |
5223 | if (SvTYPE(sv) >= SVt_PVMG) { |
5224 | if (SvMAGIC(sv)) | |
5225 | mg_free(sv); | |
2098fb77 | 5226 | if (SvTYPE(sv) == SVt_PVMG && SvFLAGS(sv) & SVpad_TYPED) |
524189f1 JH |
5227 | SvREFCNT_dec(SvSTASH(sv)); |
5228 | } | |
ec12f114 | 5229 | stash = NULL; |
79072805 | 5230 | switch (SvTYPE(sv)) { |
8990e307 | 5231 | case SVt_PVIO: |
df0bd2f4 GS |
5232 | if (IoIFP(sv) && |
5233 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5234 | IoIFP(sv) != PerlIO_stdout() && |
5235 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5236 | { |
f2b5be74 | 5237 | io_close((IO*)sv, FALSE); |
93578b34 | 5238 | } |
1d7c1841 | 5239 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5240 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5241 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5242 | Safefree(IoTOP_NAME(sv)); |
5243 | Safefree(IoFMT_NAME(sv)); | |
5244 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5245 | /* FALL THROUGH */ |
79072805 | 5246 | case SVt_PVBM: |
a0d0e21e | 5247 | goto freescalar; |
79072805 | 5248 | case SVt_PVCV: |
748a9306 | 5249 | case SVt_PVFM: |
85e6fe83 | 5250 | cv_undef((CV*)sv); |
a0d0e21e | 5251 | goto freescalar; |
79072805 | 5252 | case SVt_PVHV: |
85e6fe83 | 5253 | hv_undef((HV*)sv); |
a0d0e21e | 5254 | break; |
79072805 | 5255 | case SVt_PVAV: |
85e6fe83 | 5256 | av_undef((AV*)sv); |
a0d0e21e | 5257 | break; |
02270b4e | 5258 | case SVt_PVLV: |
73c86719 JH |
5259 | if (LvTYPE(sv) == 'T') { /* for tie: return HE to pool */ |
5260 | SvREFCNT_dec(HeKEY_sv((HE*)LvTARG(sv))); | |
5261 | HeNEXT((HE*)LvTARG(sv)) = PL_hv_fetch_ent_mh; | |
5262 | PL_hv_fetch_ent_mh = (HE*)LvTARG(sv); | |
5263 | } | |
5264 | else if (LvTYPE(sv) != 't') /* unless tie: unrefcnted fake SV** */ | |
5265 | SvREFCNT_dec(LvTARG(sv)); | |
02270b4e | 5266 | goto freescalar; |
a0d0e21e | 5267 | case SVt_PVGV: |
1edc1566 | 5268 | gp_free((GV*)sv); |
a0d0e21e | 5269 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5270 | /* cannot decrease stash refcount yet, as we might recursively delete |
5271 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5272 | of stash until current sv is completely gone. | |
5273 | -- JohnPC, 27 Mar 1998 */ | |
5274 | stash = GvSTASH(sv); | |
a0d0e21e | 5275 | /* FALL THROUGH */ |
79072805 | 5276 | case SVt_PVMG: |
79072805 LW |
5277 | case SVt_PVNV: |
5278 | case SVt_PVIV: | |
a0d0e21e | 5279 | freescalar: |
2a8de9e2 AL |
5280 | /* Don't bother with SvOOK_off(sv); as we're only going to free it. */ |
5281 | if (SvOOK(sv)) { | |
5282 | SvPV_set(sv, SvPVX(sv) - SvIVX(sv)); | |
5283 | /* Don't even bother with turning off the OOK flag. */ | |
5284 | } | |
79072805 LW |
5285 | /* FALL THROUGH */ |
5286 | case SVt_PV: | |
a0d0e21e | 5287 | case SVt_RV: |
810b8aa5 GS |
5288 | if (SvROK(sv)) { |
5289 | if (SvWEAKREF(sv)) | |
5290 | sv_del_backref(sv); | |
5291 | else | |
5292 | SvREFCNT_dec(SvRV(sv)); | |
5293 | } | |
fdac8c4b SP |
5294 | else if (SvPVX_const(sv) && SvLEN(sv)) |
5295 | Safefree(SvPVX_const(sv)); | |
5296 | else if (SvPVX_const(sv) && SvREADONLY(sv) && SvFAKE(sv)) { | |
5297 | unsharepvn(SvPVX_const(sv), | |
25716404 GS |
5298 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), |
5299 | SvUVX(sv)); | |
1c846c1f NIS |
5300 | SvFAKE_off(sv); |
5301 | } | |
79072805 | 5302 | break; |
a0d0e21e | 5303 | /* |
79072805 | 5304 | case SVt_NV: |
79072805 | 5305 | case SVt_IV: |
79072805 LW |
5306 | case SVt_NULL: |
5307 | break; | |
a0d0e21e | 5308 | */ |
79072805 LW |
5309 | } |
5310 | ||
5311 | switch (SvTYPE(sv)) { | |
5312 | case SVt_NULL: | |
5313 | break; | |
79072805 LW |
5314 | case SVt_IV: |
5315 | del_XIV(SvANY(sv)); | |
5316 | break; | |
5317 | case SVt_NV: | |
5318 | del_XNV(SvANY(sv)); | |
5319 | break; | |
ed6116ce LW |
5320 | case SVt_RV: |
5321 | del_XRV(SvANY(sv)); | |
5322 | break; | |
79072805 LW |
5323 | case SVt_PV: |
5324 | del_XPV(SvANY(sv)); | |
5325 | break; | |
5326 | case SVt_PVIV: | |
5327 | del_XPVIV(SvANY(sv)); | |
5328 | break; | |
5329 | case SVt_PVNV: | |
5330 | del_XPVNV(SvANY(sv)); | |
5331 | break; | |
5332 | case SVt_PVMG: | |
5333 | del_XPVMG(SvANY(sv)); | |
5334 | break; | |
5335 | case SVt_PVLV: | |
5336 | del_XPVLV(SvANY(sv)); | |
5337 | break; | |
5338 | case SVt_PVAV: | |
5339 | del_XPVAV(SvANY(sv)); | |
5340 | break; | |
5341 | case SVt_PVHV: | |
5342 | del_XPVHV(SvANY(sv)); | |
5343 | break; | |
5344 | case SVt_PVCV: | |
5345 | del_XPVCV(SvANY(sv)); | |
5346 | break; | |
5347 | case SVt_PVGV: | |
5348 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5349 | /* code duplication for increased performance. */ |
5350 | SvFLAGS(sv) &= SVf_BREAK; | |
5351 | SvFLAGS(sv) |= SVTYPEMASK; | |
5352 | /* decrease refcount of the stash that owns this GV, if any */ | |
5353 | if (stash) | |
5354 | SvREFCNT_dec(stash); | |
5355 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5356 | case SVt_PVBM: |
5357 | del_XPVBM(SvANY(sv)); | |
5358 | break; | |
5359 | case SVt_PVFM: | |
5360 | del_XPVFM(SvANY(sv)); | |
5361 | break; | |
8990e307 LW |
5362 | case SVt_PVIO: |
5363 | del_XPVIO(SvANY(sv)); | |
5364 | break; | |
79072805 | 5365 | } |
a0d0e21e | 5366 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5367 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5368 | } |
5369 | ||
645c22ef DM |
5370 | /* |
5371 | =for apidoc sv_newref | |
5372 | ||
5373 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5374 | instead. | |
5375 | ||
5376 | =cut | |
5377 | */ | |
5378 | ||
79072805 | 5379 | SV * |
864dbfa3 | 5380 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5381 | { |
463ee0b2 | 5382 | if (sv) |
dce16143 | 5383 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5384 | return sv; |
5385 | } | |
5386 | ||
c461cf8f JH |
5387 | /* |
5388 | =for apidoc sv_free | |
5389 | ||
645c22ef DM |
5390 | Decrement an SV's reference count, and if it drops to zero, call |
5391 | C<sv_clear> to invoke destructors and free up any memory used by | |
5392 | the body; finally, deallocate the SV's head itself. | |
5393 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5394 | |
5395 | =cut | |
5396 | */ | |
5397 | ||
79072805 | 5398 | void |
864dbfa3 | 5399 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5400 | { |
dce16143 MB |
5401 | int refcount_is_zero; |
5402 | ||
79072805 LW |
5403 | if (!sv) |
5404 | return; | |
a0d0e21e LW |
5405 | if (SvREFCNT(sv) == 0) { |
5406 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5407 | /* this SV's refcnt has been artificially decremented to |
5408 | * trigger cleanup */ | |
a0d0e21e | 5409 | return; |
3280af22 | 5410 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5411 | return; |
d689ffdd JP |
5412 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5413 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5414 | SvREFCNT(sv) = (~(U32)0)/2; | |
5415 | return; | |
5416 | } | |
0453d815 | 5417 | if (ckWARN_d(WARN_INTERNAL)) |
14347439 | 5418 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
b035a42e NC |
5419 | "Attempt to free unreferenced scalar: SV 0x%"UVxf |
5420 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 LW |
5421 | return; |
5422 | } | |
dce16143 | 5423 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
b881518d | 5424 | if (!refcount_is_zero) |
8990e307 | 5425 | return; |
463ee0b2 LW |
5426 | #ifdef DEBUGGING |
5427 | if (SvTEMP(sv)) { | |
0453d815 | 5428 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5429 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
b035a42e NC |
5430 | "Attempt to free temp prematurely: SV 0x%"UVxf |
5431 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 | 5432 | return; |
79072805 | 5433 | } |
463ee0b2 | 5434 | #endif |
d689ffdd JP |
5435 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5436 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5437 | SvREFCNT(sv) = (~(U32)0)/2; | |
5438 | return; | |
5439 | } | |
79072805 | 5440 | sv_clear(sv); |
477f5d66 CS |
5441 | if (! SvREFCNT(sv)) |
5442 | del_SV(sv); | |
79072805 LW |
5443 | } |
5444 | ||
954c1994 GS |
5445 | /* |
5446 | =for apidoc sv_len | |
5447 | ||
645c22ef DM |
5448 | Returns the length of the string in the SV. Handles magic and type |
5449 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5450 | |
5451 | =cut | |
5452 | */ | |
5453 | ||
79072805 | 5454 | STRLEN |
864dbfa3 | 5455 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5456 | { |
463ee0b2 | 5457 | STRLEN len; |
79072805 LW |
5458 | |
5459 | if (!sv) | |
5460 | return 0; | |
5461 | ||
8990e307 | 5462 | if (SvGMAGICAL(sv)) |
565764a8 | 5463 | len = mg_length(sv); |
8990e307 | 5464 | else |
497b47a8 | 5465 | (void)SvPV(sv, len); |
463ee0b2 | 5466 | return len; |
79072805 LW |
5467 | } |
5468 | ||
c461cf8f JH |
5469 | /* |
5470 | =for apidoc sv_len_utf8 | |
5471 | ||
5472 | Returns the number of characters in the string in an SV, counting wide | |
cd458e05 | 5473 | UTF-8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5474 | |
5475 | =cut | |
5476 | */ | |
5477 | ||
323eb6b5 JH |
5478 | /* |
5479 | * The length is cached in PERL_UTF8_magic, in the mg_len field. Also the | |
5480 | * mg_ptr is used, by sv_pos_u2b(), see the comments of S_utf8_mg_pos_init(). | |
5481 | * (Note that the mg_len is not the length of the mg_ptr field.) | |
5482 | * | |
5483 | */ | |
5484 | ||
a0ed51b3 | 5485 | STRLEN |
864dbfa3 | 5486 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5487 | { |
a0ed51b3 LW |
5488 | if (!sv) |
5489 | return 0; | |
5490 | ||
a0ed51b3 | 5491 | if (SvGMAGICAL(sv)) |
b76347f2 | 5492 | return mg_length(sv); |
a0ed51b3 | 5493 | else |
b76347f2 | 5494 | { |
323eb6b5 | 5495 | STRLEN len, ulen; |
8c18bf38 | 5496 | const U8 *s = (U8*)SvPV(sv, len); |
323eb6b5 JH |
5497 | MAGIC *mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_utf8) : 0; |
5498 | ||
d6218095 | 5499 | if (mg && mg->mg_len != -1 && (mg->mg_len > 0 || len == 0)) { |
323eb6b5 | 5500 | ulen = mg->mg_len; |
d6218095 JH |
5501 | #ifdef PERL_UTF8_CACHE_ASSERT |
5502 | assert(ulen == Perl_utf8_length(aTHX_ s, s + len)); | |
5503 | #endif | |
5504 | } | |
323eb6b5 JH |
5505 | else { |
5506 | ulen = Perl_utf8_length(aTHX_ s, s + len); | |
5507 | if (!mg && !SvREADONLY(sv)) { | |
5508 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
5509 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5510 | assert(mg); | |
5511 | } | |
5512 | if (mg) | |
5513 | mg->mg_len = ulen; | |
5514 | } | |
5515 | return ulen; | |
5516 | } | |
5517 | } | |
5518 | ||
5519 | /* S_utf8_mg_pos_init() is used to initialize the mg_ptr field of | |
5520 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5521 | * between UTF-8 and byte offsets. There are two (substr offset and substr | |
5522 | * length, the i offset, PERL_MAGIC_UTF8_CACHESIZE) times two (UTF-8 offset | |
5523 | * and byte offset) cache positions. | |
5524 | * | |
5525 | * The mg_len field is used by sv_len_utf8(), see its comments. | |
5526 | * Note that the mg_len is not the length of the mg_ptr field. | |
5527 | * | |
5528 | */ | |
5529 | STATIC bool | |
8c18bf38 | 5530 | S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 offsetp, U8 *s, U8 *start) |
323eb6b5 JH |
5531 | { |
5532 | bool found = FALSE; | |
5533 | ||
5534 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
1fce4797 NC |
5535 | if (!*mgp) |
5536 | *mgp = sv_magicext(sv, 0, PERL_MAGIC_utf8, &PL_vtbl_utf8, 0, 0); | |
5537 | assert(*mgp); | |
b76347f2 | 5538 | |
323eb6b5 JH |
5539 | if ((*mgp)->mg_ptr) |
5540 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
5541 | else { | |
5542 | Newz(0, *cachep, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); | |
5543 | (*mgp)->mg_ptr = (char *) *cachep; | |
5544 | } | |
5545 | assert(*cachep); | |
5546 | ||
8c18bf38 AL |
5547 | (*cachep)[i] = offsetp; |
5548 | (*cachep)[i+1] = s - start; | |
5549 | found = TRUE; | |
323eb6b5 JH |
5550 | } |
5551 | ||
5552 | return found; | |
5553 | } | |
5554 | ||
5555 | /* | |
5556 | * S_utf8_mg_pos() is used to query and update mg_ptr field of | |
5557 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5558 | * between UTF-8 and byte offsets. See also the comments of | |
5559 | * S_utf8_mg_pos_init(). | |
5560 | * | |
5561 | */ | |
5562 | STATIC bool | |
91eb8809 | 5563 | S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, U8 **sp, U8 *start, U8 *send) |
323eb6b5 JH |
5564 | { |
5565 | bool found = FALSE; | |
5566 | ||
5567 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
5568 | if (!*mgp) | |
5569 | *mgp = mg_find(sv, PERL_MAGIC_utf8); | |
5570 | if (*mgp && (*mgp)->mg_ptr) { | |
5571 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
d6218095 | 5572 | ASSERT_UTF8_CACHE(*cachep); |
91eb8809 | 5573 | if ((*cachep)[i] == (STRLEN)uoff) /* An exact match. */ |
323eb6b5 JH |
5574 | found = TRUE; |
5575 | else { /* We will skip to the right spot. */ | |
5576 | STRLEN forw = 0; | |
5577 | STRLEN backw = 0; | |
8c18bf38 | 5578 | const U8* p = NULL; |
323eb6b5 JH |
5579 | |
5580 | /* The assumption is that going backward is half | |
5581 | * the speed of going forward (that's where the | |
5582 | * 2 * backw in the below comes from). (The real | |
5583 | * figure of course depends on the UTF-8 data.) */ | |
5584 | ||
91eb8809 | 5585 | if ((*cachep)[i] > (STRLEN)uoff) { |
323eb6b5 | 5586 | forw = uoff; |
91eb8809 | 5587 | backw = (*cachep)[i] - (STRLEN)uoff; |
323eb6b5 JH |
5588 | |
5589 | if (forw < 2 * backw) | |
5590 | p = start; | |
5591 | else | |
5592 | p = start + (*cachep)[i+1]; | |
5593 | } | |
5594 | /* Try this only for the substr offset (i == 0), | |
5595 | * not for the substr length (i == 2). */ | |
5596 | else if (i == 0) { /* (*cachep)[i] < uoff */ | |
8c18bf38 | 5597 | const STRLEN ulen = sv_len_utf8(sv); |
323eb6b5 | 5598 | |
91eb8809 JH |
5599 | if ((STRLEN)uoff < ulen) { |
5600 | forw = (STRLEN)uoff - (*cachep)[i]; | |
5601 | backw = ulen - (STRLEN)uoff; | |
323eb6b5 JH |
5602 | |
5603 | if (forw < 2 * backw) | |
5604 | p = start + (*cachep)[i+1]; | |
5605 | else | |
5606 | p = send; | |
5607 | } | |
5608 | ||
5609 | /* If the string is not long enough for uoff, | |
5610 | * we could extend it, but not at this low a level. */ | |
5611 | } | |
5612 | ||
5613 | if (p) { | |
5614 | if (forw < 2 * backw) { | |
5615 | while (forw--) | |
5616 | p += UTF8SKIP(p); | |
5617 | } | |
5618 | else { | |
5619 | while (backw--) { | |
5620 | p--; | |
5621 | while (UTF8_IS_CONTINUATION(*p)) | |
5622 | p--; | |
5623 | } | |
5624 | } | |
5625 | ||
5626 | /* Update the cache. */ | |
91eb8809 | 5627 | (*cachep)[i] = (STRLEN)uoff; |
323eb6b5 JH |
5628 | (*cachep)[i+1] = p - start; |
5629 | ||
1fce4797 NC |
5630 | /* Drop the stale "length" cache */ |
5631 | if (i == 0) { | |
5632 | (*cachep)[2] = 0; | |
5633 | (*cachep)[3] = 0; | |
5634 | } | |
5635 | ||
323eb6b5 JH |
5636 | found = TRUE; |
5637 | } | |
5638 | } | |
5639 | if (found) { /* Setup the return values. */ | |
5640 | *offsetp = (*cachep)[i+1]; | |
5641 | *sp = start + *offsetp; | |
5642 | if (*sp >= send) { | |
5643 | *sp = send; | |
5644 | *offsetp = send - start; | |
5645 | } | |
5646 | else if (*sp < start) { | |
5647 | *sp = start; | |
5648 | *offsetp = 0; | |
5649 | } | |
5650 | } | |
d6218095 JH |
5651 | } |
5652 | #ifdef PERL_UTF8_CACHE_ASSERT | |
5653 | if (found) { | |
5654 | U8 *s = start; | |
5655 | I32 n = uoff; | |
5656 | ||
5657 | while (n-- && s < send) | |
5658 | s += UTF8SKIP(s); | |
5659 | ||
5660 | if (i == 0) { | |
5661 | assert(*offsetp == s - start); | |
5662 | assert((*cachep)[0] == (STRLEN)uoff); | |
5663 | assert((*cachep)[1] == *offsetp); | |
5664 | } | |
5665 | ASSERT_UTF8_CACHE(*cachep); | |
5666 | } | |
5667 | #endif | |
a0ed51b3 | 5668 | } |
323eb6b5 JH |
5669 | |
5670 | return found; | |
a0ed51b3 LW |
5671 | } |
5672 | ||
645c22ef DM |
5673 | /* |
5674 | =for apidoc sv_pos_u2b | |
5675 | ||
cd458e05 | 5676 | Converts the value pointed to by offsetp from a count of UTF-8 chars from |
645c22ef DM |
5677 | the start of the string, to a count of the equivalent number of bytes; if |
5678 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5679 | the offset, rather than from the start of the string. Handles magic and | |
5680 | type coercion. | |
5681 | ||
5682 | =cut | |
5683 | */ | |
5684 | ||
323eb6b5 JH |
5685 | /* |
5686 | * sv_pos_u2b() uses, like sv_pos_b2u(), the mg_ptr of the potential | |
5687 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
5688 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
5689 | * | |
5690 | */ | |
5691 | ||
a0ed51b3 | 5692 | void |
864dbfa3 | 5693 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5694 | { |
dfe13c55 GS |
5695 | U8 *start; |
5696 | U8 *s; | |
a0ed51b3 | 5697 | STRLEN len; |
323eb6b5 JH |
5698 | STRLEN *cache = 0; |
5699 | STRLEN boffset = 0; | |
a0ed51b3 LW |
5700 | |
5701 | if (!sv) | |
5702 | return; | |
5703 | ||
dfe13c55 | 5704 | start = s = (U8*)SvPV(sv, len); |
323eb6b5 JH |
5705 | if (len) { |
5706 | I32 uoffset = *offsetp; | |
5707 | U8 *send = s + len; | |
5708 | MAGIC *mg = 0; | |
5709 | bool found = FALSE; | |
5710 | ||
5eed253f | 5711 | if (utf8_mg_pos(sv, &mg, &cache, 0, offsetp, *offsetp, &s, start, send)) |
323eb6b5 JH |
5712 | found = TRUE; |
5713 | if (!found && uoffset > 0) { | |
5714 | while (s < send && uoffset--) | |
5715 | s += UTF8SKIP(s); | |
5716 | if (s >= send) | |
5717 | s = send; | |
8c18bf38 | 5718 | if (utf8_mg_pos_init(sv, &mg, &cache, 0, *offsetp, s, start)) |
323eb6b5 JH |
5719 | boffset = cache[1]; |
5720 | *offsetp = s - start; | |
5721 | } | |
5722 | if (lenp) { | |
5723 | found = FALSE; | |
5724 | start = s; | |
9648d1c1 | 5725 | if (utf8_mg_pos(sv, &mg, &cache, 2, lenp, *lenp, &s, start, send)) { |
323eb6b5 JH |
5726 | *lenp -= boffset; |
5727 | found = TRUE; | |
5728 | } | |
5729 | if (!found && *lenp > 0) { | |
5730 | I32 ulen = *lenp; | |
5731 | if (ulen > 0) | |
5732 | while (s < send && ulen--) | |
5733 | s += UTF8SKIP(s); | |
5734 | if (s >= send) | |
5735 | s = send; | |
8c18bf38 | 5736 | utf8_mg_pos_init(sv, &mg, &cache, 2, *lenp, s, start); |
323eb6b5 JH |
5737 | } |
5738 | *lenp = s - start; | |
5739 | } | |
d6218095 | 5740 | ASSERT_UTF8_CACHE(cache); |
323eb6b5 JH |
5741 | } |
5742 | else { | |
5743 | *offsetp = 0; | |
5744 | if (lenp) | |
5745 | *lenp = 0; | |
a0ed51b3 | 5746 | } |
d6218095 | 5747 | |
a0ed51b3 LW |
5748 | return; |
5749 | } | |
5750 | ||
645c22ef DM |
5751 | /* |
5752 | =for apidoc sv_pos_b2u | |
5753 | ||
5754 | Converts the value pointed to by offsetp from a count of bytes from the | |
cd458e05 | 5755 | start of the string, to a count of the equivalent number of UTF-8 chars. |
645c22ef DM |
5756 | Handles magic and type coercion. |
5757 | ||
5758 | =cut | |
5759 | */ | |
5760 | ||
323eb6b5 JH |
5761 | /* |
5762 | * sv_pos_b2u() uses, like sv_pos_u2b(), the mg_ptr of the potential | |
5763 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
5764 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
5765 | * | |
5766 | */ | |
5767 | ||
a0ed51b3 | 5768 | void |
323eb6b5 | 5769 | Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) |
a0ed51b3 | 5770 | { |
323eb6b5 | 5771 | U8* s; |
a0ed51b3 LW |
5772 | STRLEN len; |
5773 | ||
5774 | if (!sv) | |
5775 | return; | |
5776 | ||
dfe13c55 | 5777 | s = (U8*)SvPV(sv, len); |
eb160463 | 5778 | if ((I32)len < *offsetp) |
a0dbb045 | 5779 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
323eb6b5 | 5780 | else { |
4a9f3d2e NC |
5781 | U8* send = s + *offsetp; |
5782 | MAGIC* mg = NULL; | |
5783 | STRLEN *cache = NULL; | |
323eb6b5 | 5784 | |
4a9f3d2e | 5785 | len = 0; |
323eb6b5 | 5786 | |
4a9f3d2e NC |
5787 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { |
5788 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5789 | if (mg && mg->mg_ptr) { | |
5790 | cache = (STRLEN *) mg->mg_ptr; | |
5791 | if (cache[1] == (STRLEN)*offsetp) { | |
5792 | /* An exact match. */ | |
5793 | *offsetp = cache[0]; | |
323eb6b5 | 5794 | |
4a9f3d2e NC |
5795 | return; |
5796 | } | |
5797 | else if (cache[1] < (STRLEN)*offsetp) { | |
5798 | /* We already know part of the way. */ | |
5799 | len = cache[0]; | |
5800 | s += cache[1]; | |
5801 | /* Let the below loop do the rest. */ | |
5802 | } | |
5803 | else { /* cache[1] > *offsetp */ | |
5804 | /* We already know all of the way, now we may | |
5805 | * be able to walk back. The same assumption | |
5806 | * is made as in S_utf8_mg_pos(), namely that | |
5807 | * walking backward is twice slower than | |
5808 | * walking forward. */ | |
5809 | STRLEN forw = *offsetp; | |
5810 | STRLEN backw = cache[1] - *offsetp; | |
5811 | ||
5812 | if (!(forw < 2 * backw)) { | |
5813 | U8 *p = s + cache[1]; | |
5814 | STRLEN ubackw = 0; | |
323eb6b5 | 5815 | |
4a9f3d2e | 5816 | cache[1] -= backw; |
338501c1 | 5817 | |
4a9f3d2e | 5818 | while (backw--) { |
b9219079 JH |
5819 | p--; |
5820 | while (UTF8_IS_CONTINUATION(*p)) { | |
5821 | p--; | |
5822 | backw--; | |
5823 | } | |
5824 | ubackw++; | |
323eb6b5 | 5825 | } |
b9219079 JH |
5826 | |
5827 | cache[0] -= ubackw; | |
5828 | *offsetp = cache[0]; | |
b035a42e NC |
5829 | |
5830 | /* Drop the stale "length" cache */ | |
5831 | cache[2] = 0; | |
5832 | cache[3] = 0; | |
5833 | ||
b9219079 JH |
5834 | return; |
5835 | } | |
5836 | } | |
5837 | } | |
d6218095 | 5838 | ASSERT_UTF8_CACHE(cache); |
323eb6b5 JH |
5839 | } |
5840 | ||
4a9f3d2e NC |
5841 | while (s < send) { |
5842 | STRLEN n = 1; | |
323eb6b5 | 5843 | |
4a9f3d2e NC |
5844 | /* Call utf8n_to_uvchr() to validate the sequence |
5845 | * (unless a simple non-UTF character) */ | |
5846 | if (!UTF8_IS_INVARIANT(*s)) | |
5847 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5848 | if (n > 0) { | |
5849 | s += n; | |
5850 | len++; | |
5851 | } | |
5852 | else | |
5853 | break; | |
5854 | } | |
323eb6b5 | 5855 | |
4a9f3d2e NC |
5856 | if (!SvREADONLY(sv)) { |
5857 | if (!mg) { | |
5858 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
5859 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5860 | } | |
5861 | assert(mg); | |
323eb6b5 | 5862 | |
4a9f3d2e NC |
5863 | if (!mg->mg_ptr) { |
5864 | Newz(0, cache, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); | |
5865 | mg->mg_ptr = (char *) cache; | |
5866 | } | |
5867 | assert(cache); | |
323eb6b5 | 5868 | |
4a9f3d2e NC |
5869 | cache[0] = len; |
5870 | cache[1] = *offsetp; | |
b035a42e NC |
5871 | /* Drop the stale "length" cache */ |
5872 | cache[2] = 0; | |
5873 | cache[3] = 0; | |
4a9f3d2e | 5874 | } |
323eb6b5 | 5875 | |
4a9f3d2e | 5876 | *offsetp = len; |
a0ed51b3 | 5877 | } |
323eb6b5 | 5878 | |
a0ed51b3 LW |
5879 | return; |
5880 | } | |
5881 | ||
954c1994 GS |
5882 | /* |
5883 | =for apidoc sv_eq | |
5884 | ||
5885 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5886 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5887 | coerce its args to strings if necessary. | |
954c1994 GS |
5888 | |
5889 | =cut | |
5890 | */ | |
5891 | ||
79072805 | 5892 | I32 |
e01b9e88 | 5893 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5894 | { |
c05e0e2f | 5895 | const char *pv1; |
463ee0b2 | 5896 | STRLEN cur1; |
c05e0e2f | 5897 | const char *pv2; |
463ee0b2 | 5898 | STRLEN cur2; |
e01b9e88 | 5899 | I32 eq = 0; |
553e1bcc AT |
5900 | char *tpv = Nullch; |
5901 | SV* svrecode = Nullsv; | |
79072805 | 5902 | |
e01b9e88 | 5903 | if (!sv1) { |
79072805 LW |
5904 | pv1 = ""; |
5905 | cur1 = 0; | |
5906 | } | |
463ee0b2 | 5907 | else |
e01b9e88 | 5908 | pv1 = SvPV(sv1, cur1); |
79072805 | 5909 | |
e01b9e88 SC |
5910 | if (!sv2){ |
5911 | pv2 = ""; | |
5912 | cur2 = 0; | |
92d29cee | 5913 | } |
e01b9e88 SC |
5914 | else |
5915 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5916 | |
cf48d248 | 5917 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5918 | /* Differing utf8ness. |
5919 | * Do not UTF8size the comparands as a side-effect. */ | |
5920 | if (PL_encoding) { | |
5921 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
5922 | svrecode = newSVpvn(pv2, cur2); |
5923 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5924 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5925 | } |
5926 | else { | |
553e1bcc AT |
5927 | svrecode = newSVpvn(pv1, cur1); |
5928 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5929 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5930 | } |
5931 | /* Now both are in UTF-8. */ | |
60e3e0e4 NC |
5932 | if (cur1 != cur2) { |
5933 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5934 | return FALSE; |
60e3e0e4 | 5935 | } |
799ef3cb JH |
5936 | } |
5937 | else { | |
5938 | bool is_utf8 = TRUE; | |
5939 | ||
5940 | if (SvUTF8(sv1)) { | |
5941 | /* sv1 is the UTF-8 one, | |
5942 | * if is equal it must be downgrade-able */ | |
c05e0e2f | 5943 | char *pv = (char*)bytes_from_utf8((const U8*)pv1, |
799ef3cb JH |
5944 | &cur1, &is_utf8); |
5945 | if (pv != pv1) | |
553e1bcc | 5946 | pv1 = tpv = pv; |
799ef3cb JH |
5947 | } |
5948 | else { | |
5949 | /* sv2 is the UTF-8 one, | |
5950 | * if is equal it must be downgrade-able */ | |
c05e0e2f | 5951 | char *pv = (char *)bytes_from_utf8((const U8*)pv2, |
799ef3cb JH |
5952 | &cur2, &is_utf8); |
5953 | if (pv != pv2) | |
553e1bcc | 5954 | pv2 = tpv = pv; |
799ef3cb JH |
5955 | } |
5956 | if (is_utf8) { | |
5957 | /* Downgrade not possible - cannot be eq */ | |
5958 | return FALSE; | |
5959 | } | |
5960 | } | |
cf48d248 JH |
5961 | } |
5962 | ||
5963 | if (cur1 == cur2) | |
5964 | eq = memEQ(pv1, pv2, cur1); | |
e01b9e88 | 5965 | |
553e1bcc AT |
5966 | if (svrecode) |
5967 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5968 | |
553e1bcc AT |
5969 | if (tpv) |
5970 | Safefree(tpv); | |
cf48d248 | 5971 | |
e01b9e88 | 5972 | return eq; |
79072805 LW |
5973 | } |
5974 | ||
954c1994 GS |
5975 | /* |
5976 | =for apidoc sv_cmp | |
5977 | ||
5978 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5979 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5980 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5981 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5982 | |
5983 | =cut | |
5984 | */ | |
5985 | ||
79072805 | 5986 | I32 |
e01b9e88 | 5987 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5988 | { |
560a288e | 5989 | STRLEN cur1, cur2; |
c05e0e2f AL |
5990 | const char *pv1, *pv2; |
5991 | char *tpv = Nullch; | |
cf48d248 | 5992 | I32 cmp; |
553e1bcc | 5993 | SV *svrecode = Nullsv; |
560a288e | 5994 | |
e01b9e88 SC |
5995 | if (!sv1) { |
5996 | pv1 = ""; | |
560a288e GS |
5997 | cur1 = 0; |
5998 | } | |
e01b9e88 SC |
5999 | else |
6000 | pv1 = SvPV(sv1, cur1); | |
560a288e | 6001 | |
553e1bcc | 6002 | if (!sv2) { |
e01b9e88 | 6003 | pv2 = ""; |
560a288e GS |
6004 | cur2 = 0; |
6005 | } | |
e01b9e88 SC |
6006 | else |
6007 | pv2 = SvPV(sv2, cur2); | |
79072805 | 6008 | |
cf48d248 | 6009 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
6010 | /* Differing utf8ness. |
6011 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 6012 | if (SvUTF8(sv1)) { |
799ef3cb | 6013 | if (PL_encoding) { |
553e1bcc AT |
6014 | svrecode = newSVpvn(pv2, cur2); |
6015 | sv_recode_to_utf8(svrecode, PL_encoding); | |
6016 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
6017 | } |
6018 | else { | |
c05e0e2f | 6019 | pv2 = tpv = (char*)bytes_to_utf8((const U8*)pv2, &cur2); |
799ef3cb | 6020 | } |
cf48d248 JH |
6021 | } |
6022 | else { | |
799ef3cb | 6023 | if (PL_encoding) { |
553e1bcc AT |
6024 | svrecode = newSVpvn(pv1, cur1); |
6025 | sv_recode_to_utf8(svrecode, PL_encoding); | |
6026 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
6027 | } |
6028 | else { | |
c05e0e2f | 6029 | pv1 = tpv = (char*)bytes_to_utf8((const U8*)pv1, &cur1); |
799ef3cb | 6030 | } |
cf48d248 JH |
6031 | } |
6032 | } | |
6033 | ||
e01b9e88 | 6034 | if (!cur1) { |
cf48d248 | 6035 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 6036 | } else if (!cur2) { |
cf48d248 JH |
6037 | cmp = 1; |
6038 | } else { | |
c05e0e2f | 6039 | const I32 retval = memcmp((const void*)pv1, (const void*)pv2, cur1 < cur2 ? cur1 : cur2); |
e01b9e88 SC |
6040 | |
6041 | if (retval) { | |
cf48d248 | 6042 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 6043 | } else if (cur1 == cur2) { |
cf48d248 JH |
6044 | cmp = 0; |
6045 | } else { | |
6046 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 6047 | } |
cf48d248 | 6048 | } |
16660edb | 6049 | |
553e1bcc AT |
6050 | if (svrecode) |
6051 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6052 | |
553e1bcc AT |
6053 | if (tpv) |
6054 | Safefree(tpv); | |
cf48d248 JH |
6055 | |
6056 | return cmp; | |
bbce6d69 | 6057 | } |
16660edb | 6058 | |
c461cf8f JH |
6059 | /* |
6060 | =for apidoc sv_cmp_locale | |
6061 | ||
645c22ef DM |
6062 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
6063 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
6064 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
6065 | |
6066 | =cut | |
6067 | */ | |
6068 | ||
bbce6d69 | 6069 | I32 |
864dbfa3 | 6070 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 6071 | { |
36477c24 | 6072 | #ifdef USE_LOCALE_COLLATE |
16660edb | 6073 | |
bbce6d69 | 6074 | char *pv1, *pv2; |
6075 | STRLEN len1, len2; | |
6076 | I32 retval; | |
16660edb | 6077 | |
3280af22 | 6078 | if (PL_collation_standard) |
bbce6d69 | 6079 | goto raw_compare; |
16660edb | 6080 | |
bbce6d69 | 6081 | len1 = 0; |
8ac85365 | 6082 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 6083 | len2 = 0; |
8ac85365 | 6084 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 6085 | |
bbce6d69 | 6086 | if (!pv1 || !len1) { |
6087 | if (pv2 && len2) | |
6088 | return -1; | |
6089 | else | |
6090 | goto raw_compare; | |
6091 | } | |
6092 | else { | |
6093 | if (!pv2 || !len2) | |
6094 | return 1; | |
6095 | } | |
16660edb | 6096 | |
bbce6d69 | 6097 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 6098 | |
bbce6d69 | 6099 | if (retval) |
16660edb | 6100 | return retval < 0 ? -1 : 1; |
6101 | ||
bbce6d69 | 6102 | /* |
6103 | * When the result of collation is equality, that doesn't mean | |
6104 | * that there are no differences -- some locales exclude some | |
6105 | * characters from consideration. So to avoid false equalities, | |
6106 | * we use the raw string as a tiebreaker. | |
6107 | */ | |
16660edb | 6108 | |
bbce6d69 | 6109 | raw_compare: |
6110 | /* FALL THROUGH */ | |
16660edb | 6111 | |
36477c24 | 6112 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 6113 | |
bbce6d69 | 6114 | return sv_cmp(sv1, sv2); |
6115 | } | |
79072805 | 6116 | |
645c22ef | 6117 | |
36477c24 | 6118 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 6119 | |
7a4c00b4 | 6120 | /* |
645c22ef DM |
6121 | =for apidoc sv_collxfrm |
6122 | ||
6123 | Add Collate Transform magic to an SV if it doesn't already have it. | |
6124 | ||
6125 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
6126 | scalar data of the variable, but transformed to such a format that a normal | |
6127 | memory comparison can be used to compare the data according to the locale | |
6128 | settings. | |
6129 | ||
6130 | =cut | |
6131 | */ | |
6132 | ||
bbce6d69 | 6133 | char * |
864dbfa3 | 6134 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 6135 | { |
7a4c00b4 | 6136 | MAGIC *mg; |
16660edb | 6137 | |
14befaf4 | 6138 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 6139 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 6140 | char *s, *xf; |
6141 | STRLEN len, xlen; | |
6142 | ||
7a4c00b4 | 6143 | if (mg) |
6144 | Safefree(mg->mg_ptr); | |
bbce6d69 | 6145 | s = SvPV(sv, len); |
6146 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 6147 | if (SvREADONLY(sv)) { |
6148 | SAVEFREEPV(xf); | |
6149 | *nxp = xlen; | |
3280af22 | 6150 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 6151 | } |
7a4c00b4 | 6152 | if (! mg) { |
14befaf4 DM |
6153 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
6154 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 6155 | assert(mg); |
bbce6d69 | 6156 | } |
7a4c00b4 | 6157 | mg->mg_ptr = xf; |
565764a8 | 6158 | mg->mg_len = xlen; |
7a4c00b4 | 6159 | } |
6160 | else { | |
ff0cee69 | 6161 | if (mg) { |
6162 | mg->mg_ptr = NULL; | |
565764a8 | 6163 | mg->mg_len = -1; |
ff0cee69 | 6164 | } |
bbce6d69 | 6165 | } |
6166 | } | |
7a4c00b4 | 6167 | if (mg && mg->mg_ptr) { |
565764a8 | 6168 | *nxp = mg->mg_len; |
3280af22 | 6169 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 6170 | } |
6171 | else { | |
6172 | *nxp = 0; | |
6173 | return NULL; | |
16660edb | 6174 | } |
79072805 LW |
6175 | } |
6176 | ||
36477c24 | 6177 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 6178 | |
c461cf8f JH |
6179 | /* |
6180 | =for apidoc sv_gets | |
6181 | ||
6182 | Get a line from the filehandle and store it into the SV, optionally | |
6183 | appending to the currently-stored string. | |
6184 | ||
6185 | =cut | |
6186 | */ | |
6187 | ||
79072805 | 6188 | char * |
864dbfa3 | 6189 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 6190 | { |
c05e0e2f | 6191 | const char *rsptr; |
c07a80fd | 6192 | STRLEN rslen; |
6193 | register STDCHAR rslast; | |
6194 | register STDCHAR *bp; | |
6195 | register I32 cnt; | |
9c5ffd7c | 6196 | I32 i = 0; |
8bfdd7d9 | 6197 | I32 rspara = 0; |
fe1d0b35 | 6198 | I32 recsize; |
c07a80fd | 6199 | |
1624793d NC |
6200 | if (SvTHINKFIRST(sv)) |
6201 | sv_force_normal_flags(sv, append ? 0 : SV_COW_DROP_PV); | |
6202 | /* XXX. If you make this PVIV, then copy on write can copy scalars read | |
6203 | from <>. | |
6204 | However, perlbench says it's slower, because the existing swipe code | |
6205 | is faster than copy on write. | |
6206 | Swings and roundabouts. */ | |
6fc92669 | 6207 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 6208 | |
ff68c719 | 6209 | SvSCREAM_off(sv); |
251c53ad AE |
6210 | |
6211 | if (append) { | |
6212 | if (PerlIO_isutf8(fp)) { | |
6213 | if (!SvUTF8(sv)) { | |
6214 | sv_utf8_upgrade_nomg(sv); | |
6215 | sv_pos_u2b(sv,&append,0); | |
6216 | } | |
6217 | } else if (SvUTF8(sv)) { | |
6218 | SV *tsv = NEWSV(0,0); | |
6219 | sv_gets(tsv, fp, 0); | |
6220 | sv_utf8_upgrade_nomg(tsv); | |
6221 | SvCUR_set(sv,append); | |
6222 | sv_catsv(sv,tsv); | |
6223 | sv_free(tsv); | |
6224 | goto return_string_or_null; | |
6225 | } | |
6226 | } | |
6227 | ||
6228 | SvPOK_only(sv); | |
6229 | if (PerlIO_isutf8(fp)) | |
6230 | SvUTF8_on(sv); | |
c07a80fd | 6231 | |
ef7b71f0 | 6232 | if (IN_PERL_COMPILETIME) { |
8bfdd7d9 HS |
6233 | /* we always read code in line mode */ |
6234 | rsptr = "\n"; | |
6235 | rslen = 1; | |
6236 | } | |
6237 | else if (RsSNARF(PL_rs)) { | |
338501c1 JH |
6238 | /* If it is a regular disk file use size from stat() as estimate |
6239 | of amount we are going to read - may result in malloc-ing | |
6240 | more memory than we realy need if layers bellow reduce | |
6241 | size we read (e.g. CRLF or a gzip layer) | |
6242 | */ | |
fe1d0b35 | 6243 | Stat_t st; |
338501c1 | 6244 | if (!PerlLIO_fstat(PerlIO_fileno(fp), &st) && S_ISREG(st.st_mode)) { |
24c2fff4 | 6245 | const Off_t offset = PerlIO_tell(fp); |
bfd7eeef | 6246 | if (offset != (Off_t) -1 && st.st_size + append > offset) { |
338501c1 JH |
6247 | (void) SvGROW(sv, (STRLEN)((st.st_size - offset) + append + 1)); |
6248 | } | |
6249 | } | |
c07a80fd | 6250 | rsptr = NULL; |
6251 | rslen = 0; | |
6252 | } | |
3280af22 | 6253 | else if (RsRECORD(PL_rs)) { |
fe1d0b35 | 6254 | I32 bytesread; |
5b2b9c68 HM |
6255 | char *buffer; |
6256 | ||
6257 | /* Grab the size of the record we're getting */ | |
3280af22 | 6258 | recsize = SvIV(SvRV(PL_rs)); |
fe1d0b35 | 6259 | buffer = SvGROW(sv, (STRLEN)(recsize + append + 1)) + append; |
5b2b9c68 HM |
6260 | /* Go yank in */ |
6261 | #ifdef VMS | |
6262 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
6263 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
338501c1 JH |
6264 | /* doing, but we've got no other real choice - except avoid stdio |
6265 | as implementation - perhaps write a :vms layer ? | |
6266 | */ | |
5b2b9c68 HM |
6267 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); |
6268 | #else | |
6269 | bytesread = PerlIO_read(fp, buffer, recsize); | |
6270 | #endif | |
e3b9cd39 JH |
6271 | if (bytesread < 0) |
6272 | bytesread = 0; | |
fe1d0b35 | 6273 | SvCUR_set(sv, bytesread += append); |
e670df4e | 6274 | buffer[bytesread] = '\0'; |
251c53ad | 6275 | goto return_string_or_null; |
5b2b9c68 | 6276 | } |
3280af22 | 6277 | else if (RsPARA(PL_rs)) { |
c07a80fd | 6278 | rsptr = "\n\n"; |
6279 | rslen = 2; | |
8bfdd7d9 | 6280 | rspara = 1; |
c07a80fd | 6281 | } |
7d59b7e4 NIS |
6282 | else { |
6283 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
6284 | if (PerlIO_isutf8(fp)) { | |
6285 | rsptr = SvPVutf8(PL_rs, rslen); | |
6286 | } | |
6287 | else { | |
6288 | if (SvUTF8(PL_rs)) { | |
6289 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
6290 | Perl_croak(aTHX_ "Wide character in $/"); | |
6291 | } | |
6292 | } | |
6293 | rsptr = SvPV(PL_rs, rslen); | |
6294 | } | |
6295 | } | |
6296 | ||
c07a80fd | 6297 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
6298 | ||
8bfdd7d9 | 6299 | if (rspara) { /* have to do this both before and after */ |
79072805 | 6300 | do { /* to make sure file boundaries work right */ |
760ac839 | 6301 | if (PerlIO_eof(fp)) |
a0d0e21e | 6302 | return 0; |
760ac839 | 6303 | i = PerlIO_getc(fp); |
79072805 | 6304 | if (i != '\n') { |
a0d0e21e LW |
6305 | if (i == -1) |
6306 | return 0; | |
760ac839 | 6307 | PerlIO_ungetc(fp,i); |
79072805 LW |
6308 | break; |
6309 | } | |
6310 | } while (i != EOF); | |
6311 | } | |
c07a80fd | 6312 | |
760ac839 LW |
6313 | /* See if we know enough about I/O mechanism to cheat it ! */ |
6314 | ||
6315 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 6316 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
6317 | enough here - and may even be a macro allowing compile |
6318 | time optimization. | |
6319 | */ | |
6320 | ||
6321 | if (PerlIO_fast_gets(fp)) { | |
6322 | ||
6323 | /* | |
6324 | * We're going to steal some values from the stdio struct | |
6325 | * and put EVERYTHING in the innermost loop into registers. | |
6326 | */ | |
6327 | register STDCHAR *ptr; | |
6328 | STRLEN bpx; | |
6329 | I32 shortbuffered; | |
6330 | ||
16660edb | 6331 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
6332 | /* An ungetc()d char is handled separately from the regular | |
6333 | * buffer, so we getc() it back out and stuff it in the buffer. | |
6334 | */ | |
6335 | i = PerlIO_getc(fp); | |
6336 | if (i == EOF) return 0; | |
6337 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
6338 | (*fp)->_cnt++; | |
6339 | #endif | |
c07a80fd | 6340 | |
c2960299 | 6341 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 6342 | |
a20bf0c3 | 6343 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
338501c1 JH |
6344 | /* make sure we have the room */ |
6345 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { | |
6346 | /* Not room for all of it | |
6347 | if we are looking for a separator and room for some | |
6348 | */ | |
6349 | if (rslen && cnt > 80 && (I32)SvLEN(sv) > append) { | |
6350 | /* just process what we have room for */ | |
79072805 LW |
6351 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
6352 | cnt -= shortbuffered; | |
6353 | } | |
6354 | else { | |
6355 | shortbuffered = 0; | |
bbce6d69 | 6356 | /* remember that cnt can be negative */ |
eb160463 | 6357 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
6358 | } |
6359 | } | |
338501c1 | 6360 | else |
79072805 | 6361 | shortbuffered = 0; |
fdac8c4b | 6362 | bp = (STDCHAR*)SvPVX_const(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 6363 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 6364 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6365 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 6366 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 6367 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6368 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6369 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
6370 | for (;;) { |
6371 | screamer: | |
93a17b20 | 6372 | if (cnt > 0) { |
c07a80fd | 6373 | if (rslen) { |
760ac839 LW |
6374 | while (cnt > 0) { /* this | eat */ |
6375 | cnt--; | |
c07a80fd | 6376 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
6377 | goto thats_all_folks; /* screams | sed :-) */ | |
6378 | } | |
6379 | } | |
6380 | else { | |
1c846c1f NIS |
6381 | Copy(ptr, bp, cnt, char); /* this | eat */ |
6382 | bp += cnt; /* screams | dust */ | |
c07a80fd | 6383 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 6384 | cnt = 0; |
93a17b20 | 6385 | } |
79072805 LW |
6386 | } |
6387 | ||
748a9306 | 6388 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
6389 | cnt = shortbuffered; |
6390 | shortbuffered = 0; | |
fdac8c4b | 6391 | bpx = bp - (STDCHAR*)SvPVX_const(sv); /* box up before relocation */ |
79072805 LW |
6392 | SvCUR_set(sv, bpx); |
6393 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
fdac8c4b | 6394 | bp = (STDCHAR*)SvPVX_const(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
6395 | continue; |
6396 | } | |
6397 | ||
16660edb | 6398 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
6399 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
6400 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 6401 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 6402 | #if 0 |
16660edb | 6403 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6404 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6405 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6406 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6407 | #endif |
1c846c1f | 6408 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 6409 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
6410 | another abstraction. */ | |
760ac839 | 6411 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 6412 | #if 0 |
16660edb | 6413 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6414 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6415 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6416 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6417 | #endif |
a20bf0c3 JH |
6418 | cnt = PerlIO_get_cnt(fp); |
6419 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 6420 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6421 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 6422 | |
748a9306 LW |
6423 | if (i == EOF) /* all done for ever? */ |
6424 | goto thats_really_all_folks; | |
6425 | ||
fdac8c4b | 6426 | bpx = bp - (STDCHAR*)SvPVX_const(sv); /* box up before relocation */ |
79072805 LW |
6427 | SvCUR_set(sv, bpx); |
6428 | SvGROW(sv, bpx + cnt + 2); | |
fdac8c4b | 6429 | bp = (STDCHAR*)SvPVX_const(sv) + bpx; /* unbox after relocation */ |
c07a80fd | 6430 | |
eb160463 | 6431 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 6432 | |
c07a80fd | 6433 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 6434 | goto thats_all_folks; |
79072805 LW |
6435 | } |
6436 | ||
6437 | thats_all_folks: | |
fdac8c4b | 6438 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX_const(sv)) < rslen) || |
36477c24 | 6439 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 6440 | goto screamer; /* go back to the fray */ |
79072805 LW |
6441 | thats_really_all_folks: |
6442 | if (shortbuffered) | |
6443 | cnt += shortbuffered; | |
16660edb | 6444 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6445 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 6446 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 6447 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6448 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6449 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6450 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 6451 | *bp = '\0'; |
fdac8c4b | 6452 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX_const(sv)); /* set length */ |
16660edb | 6453 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 6454 | "Screamer: done, len=%ld, string=|%.*s|\n", |
fdac8c4b | 6455 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX_const(sv))); |
760ac839 LW |
6456 | } |
6457 | else | |
79072805 | 6458 | { |
2ee2a917 JH |
6459 | /*The big, slow, and stupid way. */ |
6460 | ||
6461 | /* Any stack-challenged places. */ | |
f73bace3 | 6462 | #if defined(EPOC) |
2ee2a917 JH |
6463 | /* EPOC: need to work around SDK features. * |
6464 | * On WINS: MS VC5 generates calls to _chkstk, * | |
6465 | * if a "large" stack frame is allocated. * | |
6466 | * gcc on MARM does not generate calls like these. */ | |
6467 | # define USEHEAPINSTEADOFSTACK | |
6468 | #endif | |
6469 | ||
6470 | #ifdef USEHEAPINSTEADOFSTACK | |
6471 | STDCHAR *buf = 0; | |
6472 | New(0, buf, 8192, STDCHAR); | |
6473 | assert(buf); | |
4d2c4e07 | 6474 | #else |
2ee2a917 | 6475 | STDCHAR buf[8192]; |
4d2c4e07 | 6476 | #endif |
79072805 | 6477 | |
760ac839 | 6478 | screamer2: |
c07a80fd | 6479 | if (rslen) { |
c501bbfe | 6480 | const register STDCHAR *bpe = buf + sizeof(buf); |
760ac839 | 6481 | bp = buf; |
eb160463 | 6482 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
6483 | ; /* keep reading */ |
6484 | cnt = bp - buf; | |
c07a80fd | 6485 | } |
6486 | else { | |
760ac839 | 6487 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 6488 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
6489 | * both args of ?: operator, causing EOF to change into 255 | |
6490 | */ | |
37be0adf | 6491 | if (cnt > 0) |
cbe9e203 JH |
6492 | i = (U8)buf[cnt - 1]; |
6493 | else | |
37be0adf | 6494 | i = EOF; |
c07a80fd | 6495 | } |
79072805 | 6496 | |
cbe9e203 JH |
6497 | if (cnt < 0) |
6498 | cnt = 0; /* we do need to re-set the sv even when cnt <= 0 */ | |
6499 | if (append) | |
6500 | sv_catpvn(sv, (char *) buf, cnt); | |
6501 | else | |
6502 | sv_setpvn(sv, (char *) buf, cnt); | |
c07a80fd | 6503 | |
6504 | if (i != EOF && /* joy */ | |
6505 | (!rslen || | |
6506 | SvCUR(sv) < rslen || | |
fdac8c4b | 6507 | memNE(SvPVX_const(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
6508 | { |
6509 | append = -1; | |
63e4d877 CS |
6510 | /* |
6511 | * If we're reading from a TTY and we get a short read, | |
6512 | * indicating that the user hit his EOF character, we need | |
6513 | * to notice it now, because if we try to read from the TTY | |
6514 | * again, the EOF condition will disappear. | |
6515 | * | |
6516 | * The comparison of cnt to sizeof(buf) is an optimization | |
6517 | * that prevents unnecessary calls to feof(). | |
6518 | * | |
6519 | * - jik 9/25/96 | |
6520 | */ | |
6521 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
6522 | goto screamer2; | |
79072805 | 6523 | } |
2ee2a917 JH |
6524 | |
6525 | #ifdef USEHEAPINSTEADOFSTACK | |
6526 | Safefree(buf); | |
6527 | #endif | |
79072805 LW |
6528 | } |
6529 | ||
8bfdd7d9 | 6530 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 6531 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 6532 | i = PerlIO_getc(fp); |
79072805 | 6533 | if (i != '\n') { |
760ac839 | 6534 | PerlIO_ungetc(fp,i); |
79072805 LW |
6535 | break; |
6536 | } | |
6537 | } | |
6538 | } | |
c07a80fd | 6539 | |
251c53ad | 6540 | return_string_or_null: |
c07a80fd | 6541 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
6542 | } |
6543 | ||
954c1994 GS |
6544 | /* |
6545 | =for apidoc sv_inc | |
6546 | ||
645c22ef DM |
6547 | Auto-increment of the value in the SV, doing string to numeric conversion |
6548 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6549 | |
6550 | =cut | |
6551 | */ | |
6552 | ||
79072805 | 6553 | void |
864dbfa3 | 6554 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
6555 | { |
6556 | register char *d; | |
463ee0b2 | 6557 | int flags; |
79072805 LW |
6558 | |
6559 | if (!sv) | |
6560 | return; | |
b23a5f78 GB |
6561 | if (SvGMAGICAL(sv)) |
6562 | mg_get(sv); | |
ed6116ce | 6563 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6564 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6565 | sv_force_normal(sv); | |
0f15f207 | 6566 | if (SvREADONLY(sv)) { |
ef7b71f0 | 6567 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 6568 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6569 | } |
a0d0e21e | 6570 | if (SvROK(sv)) { |
b5be31e9 | 6571 | IV i; |
9e7bc3e8 JD |
6572 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
6573 | return; | |
56431972 | 6574 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6575 | sv_unref(sv); |
6576 | sv_setiv(sv, i); | |
a0d0e21e | 6577 | } |
ed6116ce | 6578 | } |
8990e307 | 6579 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6580 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
6581 | /* It's (privately or publicly) a float, but not tested as an | |
6582 | integer, so test it to see. */ | |
d460ef45 | 6583 | (void) SvIV(sv); |
28e5dec8 JH |
6584 | flags = SvFLAGS(sv); |
6585 | } | |
6586 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
6587 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6588 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6589 | oops_its_int: |
59d8ce62 | 6590 | #endif |
25da4f38 IZ |
6591 | if (SvIsUV(sv)) { |
6592 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 6593 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
6594 | else |
6595 | (void)SvIOK_only_UV(sv); | |
0da6cfda | 6596 | SvUV_set(sv, SvUVX(sv) + 1); |
25da4f38 IZ |
6597 | } else { |
6598 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 6599 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
6600 | else { |
6601 | (void)SvIOK_only(sv); | |
0da6cfda | 6602 | SvIV_set(sv, SvIVX(sv) + 1); |
1c846c1f | 6603 | } |
55497cff | 6604 | } |
79072805 LW |
6605 | return; |
6606 | } | |
28e5dec8 JH |
6607 | if (flags & SVp_NOK) { |
6608 | (void)SvNOK_only(sv); | |
0da6cfda | 6609 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
6610 | return; |
6611 | } | |
6612 | ||
fdac8c4b | 6613 | if (!(flags & SVp_POK) || !*SvPVX_const(sv)) { |
28e5dec8 JH |
6614 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6615 | sv_upgrade(sv, SVt_IV); | |
6616 | (void)SvIOK_only(sv); | |
0da6cfda | 6617 | SvIV_set(sv, 1); |
79072805 LW |
6618 | return; |
6619 | } | |
463ee0b2 | 6620 | d = SvPVX(sv); |
79072805 LW |
6621 | while (isALPHA(*d)) d++; |
6622 | while (isDIGIT(*d)) d++; | |
6623 | if (*d) { | |
28e5dec8 | 6624 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6625 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6626 | warnings. Probably ought to make the sv_iv_please() that does |
6627 | the conversion if possible, and silently. */ | |
547d29e4 | 6628 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6629 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6630 | /* Need to try really hard to see if it's an integer. | |
6631 | 9.22337203685478e+18 is an integer. | |
6632 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6633 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6634 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6635 | or we go insane. */ | |
d460ef45 | 6636 | |
28e5dec8 JH |
6637 | (void) sv_2iv(sv); |
6638 | if (SvIOK(sv)) | |
6639 | goto oops_its_int; | |
6640 | ||
6641 | /* sv_2iv *should* have made this an NV */ | |
6642 | if (flags & SVp_NOK) { | |
6643 | (void)SvNOK_only(sv); | |
0da6cfda | 6644 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
6645 | return; |
6646 | } | |
6647 | /* I don't think we can get here. Maybe I should assert this | |
6648 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6649 | Fall through. */ | |
6650 | #if defined(USE_LONG_DOUBLE) | |
6651 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"PERL_PRIgldbl"\n", | |
fdac8c4b | 6652 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 | 6653 | #else |
1779d84d | 6654 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
fdac8c4b | 6655 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 JH |
6656 | #endif |
6657 | } | |
6658 | #endif /* PERL_PRESERVE_IVUV */ | |
fdac8c4b | 6659 | sv_setnv(sv,Atof(SvPVX_const(sv)) + 1.0); |
79072805 LW |
6660 | return; |
6661 | } | |
6662 | d--; | |
fdac8c4b | 6663 | while (d >= SvPVX_const(sv)) { |
79072805 LW |
6664 | if (isDIGIT(*d)) { |
6665 | if (++*d <= '9') | |
6666 | return; | |
6667 | *(d--) = '0'; | |
6668 | } | |
6669 | else { | |
9d116dd7 JH |
6670 | #ifdef EBCDIC |
6671 | /* MKS: The original code here died if letters weren't consecutive. | |
6672 | * at least it didn't have to worry about non-C locales. The | |
6673 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6674 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6675 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6676 | */ | |
6677 | if (*d != 'z' && *d != 'Z') { | |
6678 | do { ++*d; } while (!isALPHA(*d)); | |
6679 | return; | |
6680 | } | |
6681 | *(d--) -= 'z' - 'a'; | |
6682 | #else | |
79072805 LW |
6683 | ++*d; |
6684 | if (isALPHA(*d)) | |
6685 | return; | |
6686 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 6687 | #endif |
79072805 LW |
6688 | } |
6689 | } | |
6690 | /* oh,oh, the number grew */ | |
6691 | SvGROW(sv, SvCUR(sv) + 2); | |
a8dc4fe8 | 6692 | SvCUR_set(sv, SvCUR(sv) + 1); |
fdac8c4b | 6693 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX_const(sv); d--) |
79072805 LW |
6694 | *d = d[-1]; |
6695 | if (isDIGIT(d[1])) | |
6696 | *d = '1'; | |
6697 | else | |
6698 | *d = d[1]; | |
6699 | } | |
6700 | ||
954c1994 GS |
6701 | /* |
6702 | =for apidoc sv_dec | |
6703 | ||
645c22ef DM |
6704 | Auto-decrement of the value in the SV, doing string to numeric conversion |
6705 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6706 | |
6707 | =cut | |
6708 | */ | |
6709 | ||
79072805 | 6710 | void |
864dbfa3 | 6711 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6712 | { |
463ee0b2 LW |
6713 | int flags; |
6714 | ||
79072805 LW |
6715 | if (!sv) |
6716 | return; | |
b23a5f78 GB |
6717 | if (SvGMAGICAL(sv)) |
6718 | mg_get(sv); | |
ed6116ce | 6719 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6720 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6721 | sv_force_normal(sv); | |
0f15f207 | 6722 | if (SvREADONLY(sv)) { |
ef7b71f0 | 6723 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 6724 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6725 | } |
a0d0e21e | 6726 | if (SvROK(sv)) { |
b5be31e9 | 6727 | IV i; |
9e7bc3e8 JD |
6728 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6729 | return; | |
56431972 | 6730 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6731 | sv_unref(sv); |
6732 | sv_setiv(sv, i); | |
a0d0e21e | 6733 | } |
ed6116ce | 6734 | } |
28e5dec8 JH |
6735 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6736 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6737 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6738 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6739 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6740 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6741 | oops_its_int: |
59d8ce62 | 6742 | #endif |
25da4f38 IZ |
6743 | if (SvIsUV(sv)) { |
6744 | if (SvUVX(sv) == 0) { | |
6745 | (void)SvIOK_only(sv); | |
0da6cfda | 6746 | SvIV_set(sv, -1); |
25da4f38 IZ |
6747 | } |
6748 | else { | |
6749 | (void)SvIOK_only_UV(sv); | |
b43557d6 | 6750 | SvUV_set(sv, SvUVX(sv) - 1); |
1c846c1f | 6751 | } |
25da4f38 IZ |
6752 | } else { |
6753 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6754 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6755 | else { |
6756 | (void)SvIOK_only(sv); | |
0da6cfda | 6757 | SvIV_set(sv, SvIVX(sv) - 1); |
1c846c1f | 6758 | } |
55497cff | 6759 | } |
6760 | return; | |
6761 | } | |
28e5dec8 | 6762 | if (flags & SVp_NOK) { |
0da6cfda | 6763 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
6764 | (void)SvNOK_only(sv); |
6765 | return; | |
6766 | } | |
8990e307 | 6767 | if (!(flags & SVp_POK)) { |
b43557d6 NC |
6768 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6769 | sv_upgrade(sv, ((flags & SVTYPEMASK) > SVt_IV) ? SVt_PVIV : SVt_IV); | |
6770 | SvIV_set(sv, -1); | |
6771 | (void)SvIOK_only(sv); | |
79072805 LW |
6772 | return; |
6773 | } | |
28e5dec8 JH |
6774 | #ifdef PERL_PRESERVE_IVUV |
6775 | { | |
547d29e4 | 6776 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6777 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6778 | /* Need to try really hard to see if it's an integer. | |
6779 | 9.22337203685478e+18 is an integer. | |
6780 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6781 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6782 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6783 | or we go insane. */ | |
d460ef45 | 6784 | |
28e5dec8 JH |
6785 | (void) sv_2iv(sv); |
6786 | if (SvIOK(sv)) | |
6787 | goto oops_its_int; | |
6788 | ||
6789 | /* sv_2iv *should* have made this an NV */ | |
6790 | if (flags & SVp_NOK) { | |
6791 | (void)SvNOK_only(sv); | |
0da6cfda | 6792 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
6793 | return; |
6794 | } | |
6795 | /* I don't think we can get here. Maybe I should assert this | |
6796 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6797 | Fall through. */ | |
6798 | #if defined(USE_LONG_DOUBLE) | |
6799 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"PERL_PRIgldbl"\n", | |
fdac8c4b | 6800 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 | 6801 | #else |
1779d84d | 6802 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
fdac8c4b | 6803 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 JH |
6804 | #endif |
6805 | } | |
6806 | } | |
6807 | #endif /* PERL_PRESERVE_IVUV */ | |
fdac8c4b | 6808 | sv_setnv(sv,Atof(SvPVX_const(sv)) - 1.0); /* punt */ |
79072805 LW |
6809 | } |
6810 | ||
954c1994 GS |
6811 | /* |
6812 | =for apidoc sv_mortalcopy | |
6813 | ||
645c22ef | 6814 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6815 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6816 | explicit call to FREETMPS, or by an implicit call at places such as | |
6817 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6818 | |
6819 | =cut | |
6820 | */ | |
6821 | ||
79072805 LW |
6822 | /* Make a string that will exist for the duration of the expression |
6823 | * evaluation. Actually, it may have to last longer than that, but | |
6824 | * hopefully we won't free it until it has been assigned to a | |
6825 | * permanent location. */ | |
6826 | ||
6827 | SV * | |
864dbfa3 | 6828 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6829 | { |
463ee0b2 | 6830 | register SV *sv; |
b881518d | 6831 | |
4561caa4 | 6832 | new_SV(sv); |
79072805 | 6833 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6834 | EXTEND_MORTAL(1); |
6835 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6836 | SvTEMP_on(sv); |
6837 | return sv; | |
6838 | } | |
6839 | ||
954c1994 GS |
6840 | /* |
6841 | =for apidoc sv_newmortal | |
6842 | ||
645c22ef | 6843 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6844 | set to 1. It will be destroyed "soon", either by an explicit call to |
6845 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6846 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6847 | |
6848 | =cut | |
6849 | */ | |
6850 | ||
8990e307 | 6851 | SV * |
864dbfa3 | 6852 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6853 | { |
6854 | register SV *sv; | |
6855 | ||
4561caa4 | 6856 | new_SV(sv); |
8990e307 | 6857 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6858 | EXTEND_MORTAL(1); |
6859 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6860 | return sv; |
6861 | } | |
6862 | ||
954c1994 GS |
6863 | /* |
6864 | =for apidoc sv_2mortal | |
6865 | ||
d4236ebc DM |
6866 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6867 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
7aa747bc A |
6868 | statement boundaries. SvTEMP() is turned on which means that the SV's |
6869 | string buffer can be "stolen" if this SV is copied. See also C<sv_newmortal> | |
6870 | and C<sv_mortalcopy>. | |
954c1994 GS |
6871 | |
6872 | =cut | |
6873 | */ | |
6874 | ||
79072805 | 6875 | SV * |
864dbfa3 | 6876 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6877 | { |
6878 | if (!sv) | |
6879 | return sv; | |
d689ffdd | 6880 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6881 | return sv; |
677b06e3 GS |
6882 | EXTEND_MORTAL(1); |
6883 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6884 | SvTEMP_on(sv); |
79072805 LW |
6885 | return sv; |
6886 | } | |
6887 | ||
954c1994 GS |
6888 | /* |
6889 | =for apidoc newSVpv | |
6890 | ||
6891 | Creates a new SV and copies a string into it. The reference count for the | |
6892 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6893 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6894 | ||
6895 | =cut | |
6896 | */ | |
6897 | ||
79072805 | 6898 | SV * |
864dbfa3 | 6899 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6900 | { |
463ee0b2 | 6901 | register SV *sv; |
79072805 | 6902 | |
4561caa4 | 6903 | new_SV(sv); |
2a8de9e2 | 6904 | sv_setpvn(sv,s,len ? len : strlen(s)); |
79072805 LW |
6905 | return sv; |
6906 | } | |
6907 | ||
954c1994 GS |
6908 | /* |
6909 | =for apidoc newSVpvn | |
6910 | ||
6911 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6912 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 | 6913 | string. You are responsible for ensuring that the source string is at least |
611e9550 | 6914 | C<len> bytes long. If the C<s> argument is NULL the new SV will be undefined. |
954c1994 GS |
6915 | |
6916 | =cut | |
6917 | */ | |
6918 | ||
9da1e3b5 | 6919 | SV * |
864dbfa3 | 6920 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6921 | { |
6922 | register SV *sv; | |
6923 | ||
6924 | new_SV(sv); | |
9da1e3b5 MUN |
6925 | sv_setpvn(sv,s,len); |
6926 | return sv; | |
6927 | } | |
6928 | ||
1c846c1f NIS |
6929 | /* |
6930 | =for apidoc newSVpvn_share | |
6931 | ||
fdac8c4b | 6932 | Creates a new SV with its SvPVX_const pointing to a shared string in the string |
645c22ef DM |
6933 | table. If the string does not already exist in the table, it is created |
6934 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6935 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6936 | otherwise the hash is computed. The idea here is that as the string table | |
fdac8c4b | 6937 | is used for shared hash keys these strings will have SvPVX_const == HeKEY and |
645c22ef | 6938 | hash lookup will avoid string compare. |
1c846c1f NIS |
6939 | |
6940 | =cut | |
6941 | */ | |
6942 | ||
6943 | SV * | |
c3654f1a | 6944 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6945 | { |
6946 | register SV *sv; | |
c3654f1a IH |
6947 | bool is_utf8 = FALSE; |
6948 | if (len < 0) { | |
77caf834 | 6949 | STRLEN tmplen = -len; |
c3654f1a | 6950 | is_utf8 = TRUE; |
75a54232 | 6951 | /* See the note in hv.c:hv_fetch() --jhi */ |
c05e0e2f | 6952 | src = (char*)bytes_from_utf8((const U8*)src, &tmplen, &is_utf8); |
75a54232 JH |
6953 | len = tmplen; |
6954 | } | |
1c846c1f | 6955 | if (!hash) |
5afd6d42 | 6956 | PERL_HASH(hash, src, len); |
1c846c1f NIS |
6957 | new_SV(sv); |
6958 | sv_upgrade(sv, SVt_PVIV); | |
0da6cfda | 6959 | SvPV_set(sv, sharepvn(src, is_utf8?-len:len, hash)); |
a8dc4fe8 | 6960 | SvCUR_set(sv, len); |
0da6cfda | 6961 | SvUV_set(sv, hash); |
a8dc4fe8 | 6962 | SvLEN_set(sv, 0); |
1c846c1f NIS |
6963 | SvREADONLY_on(sv); |
6964 | SvFAKE_on(sv); | |
6965 | SvPOK_on(sv); | |
c3654f1a IH |
6966 | if (is_utf8) |
6967 | SvUTF8_on(sv); | |
1c846c1f NIS |
6968 | return sv; |
6969 | } | |
6970 | ||
645c22ef | 6971 | |
cea2e8a9 | 6972 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6973 | |
6974 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6975 | * version of the main function, (which may itself be aliased to us). | |
6976 | * Don't access this version directly. | |
6977 | */ | |
6978 | ||
46fc3d4c | 6979 | SV * |
cea2e8a9 | 6980 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6981 | { |
cea2e8a9 | 6982 | dTHX; |
46fc3d4c | 6983 | register SV *sv; |
6984 | va_list args; | |
46fc3d4c | 6985 | va_start(args, pat); |
c5be433b | 6986 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6987 | va_end(args); |
6988 | return sv; | |
6989 | } | |
cea2e8a9 | 6990 | #endif |
46fc3d4c | 6991 | |
954c1994 GS |
6992 | /* |
6993 | =for apidoc newSVpvf | |
6994 | ||
645c22ef | 6995 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6996 | C<sprintf>. |
6997 | ||
6998 | =cut | |
6999 | */ | |
7000 | ||
cea2e8a9 GS |
7001 | SV * |
7002 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
7003 | { | |
7004 | register SV *sv; | |
7005 | va_list args; | |
cea2e8a9 | 7006 | va_start(args, pat); |
c5be433b | 7007 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
7008 | va_end(args); |
7009 | return sv; | |
7010 | } | |
46fc3d4c | 7011 | |
645c22ef DM |
7012 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
7013 | ||
79072805 | 7014 | SV * |
c5be433b GS |
7015 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
7016 | { | |
7017 | register SV *sv; | |
7018 | new_SV(sv); | |
7019 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7020 | return sv; | |
7021 | } | |
7022 | ||
954c1994 GS |
7023 | /* |
7024 | =for apidoc newSVnv | |
7025 | ||
7026 | Creates a new SV and copies a floating point value into it. | |
7027 | The reference count for the SV is set to 1. | |
7028 | ||
7029 | =cut | |
7030 | */ | |
7031 | ||
c5be433b | 7032 | SV * |
65202027 | 7033 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 7034 | { |
463ee0b2 | 7035 | register SV *sv; |
79072805 | 7036 | |
4561caa4 | 7037 | new_SV(sv); |
79072805 LW |
7038 | sv_setnv(sv,n); |
7039 | return sv; | |
7040 | } | |
7041 | ||
954c1994 GS |
7042 | /* |
7043 | =for apidoc newSViv | |
7044 | ||
7045 | Creates a new SV and copies an integer into it. The reference count for the | |
7046 | SV is set to 1. | |
7047 | ||
7048 | =cut | |
7049 | */ | |
7050 | ||
79072805 | 7051 | SV * |
864dbfa3 | 7052 | Perl_newSViv(pTHX_ IV i) |
79072805 | 7053 | { |
463ee0b2 | 7054 | register SV *sv; |
79072805 | 7055 | |
4561caa4 | 7056 | new_SV(sv); |
79072805 LW |
7057 | sv_setiv(sv,i); |
7058 | return sv; | |
7059 | } | |
7060 | ||
954c1994 | 7061 | /* |
1a3327fb JH |
7062 | =for apidoc newSVuv |
7063 | ||
7064 | Creates a new SV and copies an unsigned integer into it. | |
7065 | The reference count for the SV is set to 1. | |
7066 | ||
7067 | =cut | |
7068 | */ | |
7069 | ||
7070 | SV * | |
7071 | Perl_newSVuv(pTHX_ UV u) | |
7072 | { | |
7073 | register SV *sv; | |
7074 | ||
7075 | new_SV(sv); | |
7076 | sv_setuv(sv,u); | |
7077 | return sv; | |
7078 | } | |
7079 | ||
7080 | /* | |
954c1994 GS |
7081 | =for apidoc newRV_noinc |
7082 | ||
7083 | Creates an RV wrapper for an SV. The reference count for the original | |
7084 | SV is B<not> incremented. | |
7085 | ||
7086 | =cut | |
7087 | */ | |
7088 | ||
2304df62 | 7089 | SV * |
864dbfa3 | 7090 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
7091 | { |
7092 | register SV *sv; | |
7093 | ||
4561caa4 | 7094 | new_SV(sv); |
2304df62 | 7095 | sv_upgrade(sv, SVt_RV); |
76e3520e | 7096 | SvTEMP_off(tmpRef); |
a8dc4fe8 | 7097 | SvRV_set(sv, tmpRef); |
2304df62 | 7098 | SvROK_on(sv); |
2304df62 AD |
7099 | return sv; |
7100 | } | |
7101 | ||
ff276b08 | 7102 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
7103 | * newRV_inc is in fact #defined to newRV in sv.h |
7104 | */ | |
7105 | ||
5f05dabc | 7106 | SV * |
864dbfa3 | 7107 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 7108 | { |
5f6447b6 | 7109 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 7110 | } |
5f05dabc | 7111 | |
954c1994 GS |
7112 | /* |
7113 | =for apidoc newSVsv | |
7114 | ||
7115 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 7116 | (Uses C<sv_setsv>). |
954c1994 GS |
7117 | |
7118 | =cut | |
7119 | */ | |
7120 | ||
79072805 | 7121 | SV * |
864dbfa3 | 7122 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 7123 | { |
463ee0b2 | 7124 | register SV *sv; |
79072805 LW |
7125 | |
7126 | if (!old) | |
7127 | return Nullsv; | |
8990e307 | 7128 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 7129 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 7130 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
7131 | return Nullsv; |
7132 | } | |
4561caa4 | 7133 | new_SV(sv); |
3965bf69 NC |
7134 | /* SV_GMAGIC is the default for sv_setv() |
7135 | SV_NOSTEAL prevents TEMP buffers being, well, stolen, and saves games | |
7136 | with SvTEMP_off and SvTEMP_on round a call to sv_setsv. */ | |
7137 | sv_setsv_flags(sv, old, SV_GMAGIC | SV_NOSTEAL); | |
463ee0b2 | 7138 | return sv; |
79072805 LW |
7139 | } |
7140 | ||
645c22ef DM |
7141 | /* |
7142 | =for apidoc sv_reset | |
7143 | ||
7144 | Underlying implementation for the C<reset> Perl function. | |
7145 | Note that the perl-level function is vaguely deprecated. | |
7146 | ||
7147 | =cut | |
7148 | */ | |
7149 | ||
79072805 | 7150 | void |
864dbfa3 | 7151 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
7152 | { |
7153 | register HE *entry; | |
7154 | register GV *gv; | |
7155 | register SV *sv; | |
7156 | register I32 i; | |
7157 | register PMOP *pm; | |
7158 | register I32 max; | |
4802d5d7 | 7159 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 7160 | |
49d8d3a1 MB |
7161 | if (!stash) |
7162 | return; | |
7163 | ||
79072805 LW |
7164 | if (!*s) { /* reset ?? searches */ |
7165 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 7166 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
7167 | } |
7168 | return; | |
7169 | } | |
7170 | ||
7171 | /* reset variables */ | |
7172 | ||
7173 | if (!HvARRAY(stash)) | |
7174 | return; | |
463ee0b2 LW |
7175 | |
7176 | Zero(todo, 256, char); | |
79072805 | 7177 | while (*s) { |
4802d5d7 | 7178 | i = (unsigned char)*s; |
79072805 LW |
7179 | if (s[1] == '-') { |
7180 | s += 2; | |
7181 | } | |
4802d5d7 | 7182 | max = (unsigned char)*s++; |
79072805 | 7183 | for ( ; i <= max; i++) { |
463ee0b2 LW |
7184 | todo[i] = 1; |
7185 | } | |
a0d0e21e | 7186 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 7187 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
7188 | entry; |
7189 | entry = HeNEXT(entry)) | |
7190 | { | |
1edc1566 | 7191 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 7192 | continue; |
1edc1566 | 7193 | gv = (GV*)HeVAL(entry); |
79072805 | 7194 | sv = GvSV(gv); |
9e35f4b3 GS |
7195 | if (SvTHINKFIRST(sv)) { |
7196 | if (!SvREADONLY(sv) && SvROK(sv)) | |
7197 | sv_unref(sv); | |
7198 | continue; | |
7199 | } | |
7460c263 | 7200 | SvOK_off(sv); |
79072805 LW |
7201 | if (SvTYPE(sv) >= SVt_PV) { |
7202 | SvCUR_set(sv, 0); | |
fdac8c4b | 7203 | if (SvPVX_const(sv) != Nullch) |
463ee0b2 | 7204 | *SvPVX(sv) = '\0'; |
44a8e56a | 7205 | SvTAINT(sv); |
79072805 LW |
7206 | } |
7207 | if (GvAV(gv)) { | |
7208 | av_clear(GvAV(gv)); | |
7209 | } | |
26ab6a78 | 7210 | if (GvHV(gv) && !HvNAME_get(GvHV(gv))) { |
463ee0b2 | 7211 | hv_clear(GvHV(gv)); |
75a5c1c6 | 7212 | #ifndef PERL_MICRO |
fa6a1c44 | 7213 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
7214 | if (gv == PL_envgv |
7215 | # ifdef USE_ITHREADS | |
7216 | && PL_curinterp == aTHX | |
7217 | # endif | |
7218 | ) | |
7219 | { | |
79072805 | 7220 | environ[0] = Nullch; |
4efc5df6 | 7221 | } |
a0d0e21e | 7222 | #endif |
75a5c1c6 | 7223 | #endif /* !PERL_MICRO */ |
79072805 LW |
7224 | } |
7225 | } | |
7226 | } | |
7227 | } | |
7228 | } | |
7229 | ||
645c22ef DM |
7230 | /* |
7231 | =for apidoc sv_2io | |
7232 | ||
7233 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
7234 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
7235 | named after the PV if we're a string. | |
7236 | ||
7237 | =cut | |
7238 | */ | |
7239 | ||
46fc3d4c | 7240 | IO* |
864dbfa3 | 7241 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 7242 | { |
7243 | IO* io; | |
7244 | GV* gv; | |
2d8e6c8d | 7245 | STRLEN n_a; |
46fc3d4c | 7246 | |
7247 | switch (SvTYPE(sv)) { | |
7248 | case SVt_PVIO: | |
7249 | io = (IO*)sv; | |
7250 | break; | |
7251 | case SVt_PVGV: | |
7252 | gv = (GV*)sv; | |
7253 | io = GvIO(gv); | |
7254 | if (!io) | |
cea2e8a9 | 7255 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 7256 | break; |
7257 | default: | |
7258 | if (!SvOK(sv)) | |
cea2e8a9 | 7259 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 7260 | if (SvROK(sv)) |
7261 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 7262 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 7263 | if (gv) |
7264 | io = GvIO(gv); | |
7265 | else | |
7266 | io = 0; | |
7267 | if (!io) | |
c293eb2b | 7268 | Perl_croak(aTHX_ "Bad filehandle: %"SVf, sv); |
46fc3d4c | 7269 | break; |
7270 | } | |
7271 | return io; | |
7272 | } | |
7273 | ||
645c22ef DM |
7274 | /* |
7275 | =for apidoc sv_2cv | |
7276 | ||
7277 | Using various gambits, try to get a CV from an SV; in addition, try if | |
7278 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
7279 | ||
7280 | =cut | |
7281 | */ | |
7282 | ||
79072805 | 7283 | CV * |
864dbfa3 | 7284 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 7285 | { |
c04a4dfe JH |
7286 | GV *gv = Nullgv; |
7287 | CV *cv = Nullcv; | |
2d8e6c8d | 7288 | STRLEN n_a; |
79072805 LW |
7289 | |
7290 | if (!sv) | |
93a17b20 | 7291 | return *gvp = Nullgv, Nullcv; |
79072805 | 7292 | switch (SvTYPE(sv)) { |
79072805 LW |
7293 | case SVt_PVCV: |
7294 | *st = CvSTASH(sv); | |
7295 | *gvp = Nullgv; | |
7296 | return (CV*)sv; | |
7297 | case SVt_PVHV: | |
7298 | case SVt_PVAV: | |
7299 | *gvp = Nullgv; | |
7300 | return Nullcv; | |
8990e307 LW |
7301 | case SVt_PVGV: |
7302 | gv = (GV*)sv; | |
a0d0e21e | 7303 | *gvp = gv; |
8990e307 LW |
7304 | *st = GvESTASH(gv); |
7305 | goto fix_gv; | |
7306 | ||
79072805 | 7307 | default: |
a0d0e21e LW |
7308 | if (SvGMAGICAL(sv)) |
7309 | mg_get(sv); | |
7310 | if (SvROK(sv)) { | |
f5284f61 IZ |
7311 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
7312 | tryAMAGICunDEREF(to_cv); | |
7313 | ||
62f274bf GS |
7314 | sv = SvRV(sv); |
7315 | if (SvTYPE(sv) == SVt_PVCV) { | |
7316 | cv = (CV*)sv; | |
7317 | *gvp = Nullgv; | |
7318 | *st = CvSTASH(cv); | |
7319 | return cv; | |
7320 | } | |
7321 | else if(isGV(sv)) | |
7322 | gv = (GV*)sv; | |
7323 | else | |
cea2e8a9 | 7324 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 7325 | } |
62f274bf | 7326 | else if (isGV(sv)) |
79072805 LW |
7327 | gv = (GV*)sv; |
7328 | else | |
2d8e6c8d | 7329 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
7330 | *gvp = gv; |
7331 | if (!gv) | |
7332 | return Nullcv; | |
7333 | *st = GvESTASH(gv); | |
8990e307 | 7334 | fix_gv: |
8ebc5c01 | 7335 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 7336 | SV *tmpsv; |
748a9306 | 7337 | ENTER; |
4633a7c4 | 7338 | tmpsv = NEWSV(704,0); |
16660edb | 7339 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
7340 | /* XXX this is probably not what they think they're getting. |
7341 | * It has the same effect as "sub name;", i.e. just a forward | |
7342 | * declaration! */ | |
774d564b | 7343 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
7344 | newSVOP(OP_CONST, 0, tmpsv), |
7345 | Nullop, | |
8990e307 | 7346 | Nullop); |
748a9306 | 7347 | LEAVE; |
8ebc5c01 | 7348 | if (!GvCVu(gv)) |
c293eb2b NC |
7349 | Perl_croak(aTHX_ "Unable to create sub named \"%"SVf"\"", |
7350 | sv); | |
8990e307 | 7351 | } |
8ebc5c01 | 7352 | return GvCVu(gv); |
79072805 LW |
7353 | } |
7354 | } | |
7355 | ||
c461cf8f JH |
7356 | /* |
7357 | =for apidoc sv_true | |
7358 | ||
7359 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
7360 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
7361 | instead use an in-line version. | |
c461cf8f JH |
7362 | |
7363 | =cut | |
7364 | */ | |
7365 | ||
79072805 | 7366 | I32 |
864dbfa3 | 7367 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 7368 | { |
8990e307 LW |
7369 | if (!sv) |
7370 | return 0; | |
79072805 | 7371 | if (SvPOK(sv)) { |
c05e0e2f | 7372 | const register XPV* tXpv; |
4e35701f | 7373 | if ((tXpv = (XPV*)SvANY(sv)) && |
c2f1de04 | 7374 | (tXpv->xpv_cur > 1 || |
4e35701f | 7375 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
7376 | return 1; |
7377 | else | |
7378 | return 0; | |
7379 | } | |
7380 | else { | |
7381 | if (SvIOK(sv)) | |
463ee0b2 | 7382 | return SvIVX(sv) != 0; |
79072805 LW |
7383 | else { |
7384 | if (SvNOK(sv)) | |
463ee0b2 | 7385 | return SvNVX(sv) != 0.0; |
79072805 | 7386 | else |
463ee0b2 | 7387 | return sv_2bool(sv); |
79072805 LW |
7388 | } |
7389 | } | |
7390 | } | |
79072805 | 7391 | |
645c22ef DM |
7392 | /* |
7393 | =for apidoc sv_iv | |
7394 | ||
7395 | A private implementation of the C<SvIVx> macro for compilers which can't | |
7396 | cope with complex macro expressions. Always use the macro instead. | |
7397 | ||
7398 | =cut | |
7399 | */ | |
7400 | ||
ff68c719 | 7401 | IV |
864dbfa3 | 7402 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 7403 | { |
25da4f38 IZ |
7404 | if (SvIOK(sv)) { |
7405 | if (SvIsUV(sv)) | |
7406 | return (IV)SvUVX(sv); | |
ff68c719 | 7407 | return SvIVX(sv); |
25da4f38 | 7408 | } |
ff68c719 | 7409 | return sv_2iv(sv); |
85e6fe83 | 7410 | } |
85e6fe83 | 7411 | |
645c22ef DM |
7412 | /* |
7413 | =for apidoc sv_uv | |
7414 | ||
7415 | A private implementation of the C<SvUVx> macro for compilers which can't | |
7416 | cope with complex macro expressions. Always use the macro instead. | |
7417 | ||
7418 | =cut | |
7419 | */ | |
7420 | ||
ff68c719 | 7421 | UV |
864dbfa3 | 7422 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 7423 | { |
25da4f38 IZ |
7424 | if (SvIOK(sv)) { |
7425 | if (SvIsUV(sv)) | |
7426 | return SvUVX(sv); | |
7427 | return (UV)SvIVX(sv); | |
7428 | } | |
ff68c719 | 7429 | return sv_2uv(sv); |
7430 | } | |
85e6fe83 | 7431 | |
645c22ef DM |
7432 | /* |
7433 | =for apidoc sv_nv | |
7434 | ||
7435 | A private implementation of the C<SvNVx> macro for compilers which can't | |
7436 | cope with complex macro expressions. Always use the macro instead. | |
7437 | ||
7438 | =cut | |
7439 | */ | |
7440 | ||
65202027 | 7441 | NV |
864dbfa3 | 7442 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 7443 | { |
ff68c719 | 7444 | if (SvNOK(sv)) |
7445 | return SvNVX(sv); | |
7446 | return sv_2nv(sv); | |
79072805 | 7447 | } |
79072805 | 7448 | |
d34f9d2e JH |
7449 | /* sv_pv() is now a macro using SvPV_nolen(); |
7450 | * this function provided for binary compatibility only | |
7451 | */ | |
7452 | ||
7453 | char * | |
7454 | Perl_sv_pv(pTHX_ SV *sv) | |
7455 | { | |
7456 | STRLEN n_a; | |
7457 | ||
7458 | if (SvPOK(sv)) | |
7459 | return SvPVX(sv); | |
7460 | ||
7461 | return sv_2pv(sv, &n_a); | |
7462 | } | |
7463 | ||
645c22ef DM |
7464 | /* |
7465 | =for apidoc sv_pv | |
7466 | ||
baca2b92 | 7467 | Use the C<SvPV_nolen> macro instead |
645c22ef | 7468 | |
645c22ef DM |
7469 | =for apidoc sv_pvn |
7470 | ||
7471 | A private implementation of the C<SvPV> macro for compilers which can't | |
7472 | cope with complex macro expressions. Always use the macro instead. | |
7473 | ||
7474 | =cut | |
7475 | */ | |
7476 | ||
1fa8b10d | 7477 | char * |
864dbfa3 | 7478 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 7479 | { |
85e6fe83 LW |
7480 | if (SvPOK(sv)) { |
7481 | *lp = SvCUR(sv); | |
a0d0e21e | 7482 | return SvPVX(sv); |
85e6fe83 | 7483 | } |
463ee0b2 | 7484 | return sv_2pv(sv, lp); |
79072805 | 7485 | } |
79072805 | 7486 | |
6e9d1081 NC |
7487 | |
7488 | char * | |
7489 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
7490 | { | |
7491 | if (SvPOK(sv)) { | |
7492 | *lp = SvCUR(sv); | |
7493 | return SvPVX(sv); | |
7494 | } | |
7495 | return sv_2pv_flags(sv, lp, 0); | |
7496 | } | |
7497 | ||
d34f9d2e JH |
7498 | /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags(); |
7499 | * this function provided for binary compatibility only | |
7500 | */ | |
7501 | ||
7502 | char * | |
7503 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) | |
7504 | { | |
7505 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); | |
7506 | } | |
7507 | ||
c461cf8f JH |
7508 | /* |
7509 | =for apidoc sv_pvn_force | |
7510 | ||
7511 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
7512 | A private implementation of the C<SvPV_force> macro for compilers which |
7513 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 7514 | |
8d6d96c1 HS |
7515 | =for apidoc sv_pvn_force_flags |
7516 | ||
7517 | Get a sensible string out of the SV somehow. | |
7518 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
7519 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
7520 | implemented in terms of this function. | |
645c22ef DM |
7521 | You normally want to use the various wrapper macros instead: see |
7522 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
7523 | |
7524 | =cut | |
7525 | */ | |
7526 | ||
7527 | char * | |
7528 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
7529 | { | |
a0d0e21e | 7530 | |
6fc92669 GS |
7531 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
7532 | sv_force_normal(sv); | |
1c846c1f | 7533 | |
a0d0e21e LW |
7534 | if (SvPOK(sv)) { |
7535 | *lp = SvCUR(sv); | |
7536 | } | |
7537 | else { | |
8c18bf38 | 7538 | char *s; |
748a9306 | 7539 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 7540 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 7541 | OP_NAME(PL_op)); |
a0d0e21e | 7542 | } |
4633a7c4 | 7543 | else |
8d6d96c1 | 7544 | s = sv_2pv_flags(sv, lp, flags); |
fdac8c4b | 7545 | if (s != SvPVX_const(sv)) { /* Almost, but not quite, sv_setpvn() */ |
8c18bf38 | 7546 | const STRLEN len = *lp; |
1c846c1f | 7547 | |
a0d0e21e LW |
7548 | if (SvROK(sv)) |
7549 | sv_unref(sv); | |
7550 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
7551 | SvGROW(sv, len + 1); | |
fdac8c4b | 7552 | Move(s,SvPVX_const(sv),len,char); |
a0d0e21e LW |
7553 | SvCUR_set(sv, len); |
7554 | *SvEND(sv) = '\0'; | |
7555 | } | |
7556 | if (!SvPOK(sv)) { | |
7557 | SvPOK_on(sv); /* validate pointer */ | |
7558 | SvTAINT(sv); | |
1d7c1841 | 7559 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
fdac8c4b | 7560 | PTR2UV(sv),SvPVX_const(sv))); |
a0d0e21e LW |
7561 | } |
7562 | } | |
7563 | return SvPVX(sv); | |
7564 | } | |
7565 | ||
d34f9d2e JH |
7566 | /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags(); |
7567 | * this function provided for binary compatibility only | |
7568 | */ | |
7569 | ||
7570 | char * | |
7571 | Perl_sv_pvbyte(pTHX_ SV *sv) | |
7572 | { | |
7573 | sv_utf8_downgrade(sv,0); | |
7574 | return sv_pv(sv); | |
7575 | } | |
7576 | ||
645c22ef DM |
7577 | /* |
7578 | =for apidoc sv_pvbyte | |
7579 | ||
baca2b92 | 7580 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 7581 | |
645c22ef DM |
7582 | =for apidoc sv_pvbyten |
7583 | ||
7584 | A private implementation of the C<SvPVbyte> macro for compilers | |
7585 | which can't cope with complex macro expressions. Always use the macro | |
7586 | instead. | |
7587 | ||
7588 | =cut | |
7589 | */ | |
7590 | ||
7340a771 GS |
7591 | char * |
7592 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
7593 | { | |
ffebcc3e | 7594 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7595 | return sv_pvn(sv,lp); |
7596 | } | |
7597 | ||
645c22ef DM |
7598 | /* |
7599 | =for apidoc sv_pvbyten_force | |
7600 | ||
7601 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
7602 | which can't cope with complex macro expressions. Always use the macro | |
7603 | instead. | |
7604 | ||
7605 | =cut | |
7606 | */ | |
7607 | ||
7340a771 GS |
7608 | char * |
7609 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
7610 | { | |
b035a42e | 7611 | sv_pvn_force(sv,lp); |
ffebcc3e | 7612 | sv_utf8_downgrade(sv,0); |
b035a42e NC |
7613 | *lp = SvCUR(sv); |
7614 | return SvPVX(sv); | |
7340a771 GS |
7615 | } |
7616 | ||
d34f9d2e JH |
7617 | /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags(); |
7618 | * this function provided for binary compatibility only | |
7619 | */ | |
7620 | ||
7621 | char * | |
7622 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
7623 | { | |
7624 | sv_utf8_upgrade(sv); | |
7625 | return sv_pv(sv); | |
7626 | } | |
7627 | ||
645c22ef DM |
7628 | /* |
7629 | =for apidoc sv_pvutf8 | |
7630 | ||
baca2b92 | 7631 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 7632 | |
645c22ef DM |
7633 | =for apidoc sv_pvutf8n |
7634 | ||
7635 | A private implementation of the C<SvPVutf8> macro for compilers | |
7636 | which can't cope with complex macro expressions. Always use the macro | |
7637 | instead. | |
7638 | ||
7639 | =cut | |
7640 | */ | |
7641 | ||
7340a771 GS |
7642 | char * |
7643 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
7644 | { | |
560a288e | 7645 | sv_utf8_upgrade(sv); |
7340a771 GS |
7646 | return sv_pvn(sv,lp); |
7647 | } | |
7648 | ||
c461cf8f JH |
7649 | /* |
7650 | =for apidoc sv_pvutf8n_force | |
7651 | ||
645c22ef DM |
7652 | A private implementation of the C<SvPVutf8_force> macro for compilers |
7653 | which can't cope with complex macro expressions. Always use the macro | |
7654 | instead. | |
c461cf8f JH |
7655 | |
7656 | =cut | |
7657 | */ | |
7658 | ||
7340a771 GS |
7659 | char * |
7660 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
7661 | { | |
b035a42e | 7662 | sv_pvn_force(sv,lp); |
560a288e | 7663 | sv_utf8_upgrade(sv); |
b035a42e NC |
7664 | *lp = SvCUR(sv); |
7665 | return SvPVX(sv); | |
7340a771 GS |
7666 | } |
7667 | ||
c461cf8f JH |
7668 | /* |
7669 | =for apidoc sv_reftype | |
7670 | ||
7671 | Returns a string describing what the SV is a reference to. | |
7672 | ||
7673 | =cut | |
7674 | */ | |
7675 | ||
7340a771 | 7676 | char * |
864dbfa3 | 7677 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 7678 | { |
206b424e NC |
7679 | /* The fact that I don't need to downcast to char * everywhere, only in ?: |
7680 | inside return suggests a const propagation bug in g++. */ | |
c86bf373 | 7681 | if (ob && SvOBJECT(sv)) { |
26ab6a78 | 7682 | char *name = HvNAME_get(SvSTASH(sv)); |
206b424e | 7683 | return name ? name : (char *) "__ANON__"; |
c86bf373 | 7684 | } |
a0d0e21e LW |
7685 | else { |
7686 | switch (SvTYPE(sv)) { | |
7687 | case SVt_NULL: | |
7688 | case SVt_IV: | |
7689 | case SVt_NV: | |
7690 | case SVt_RV: | |
7691 | case SVt_PV: | |
7692 | case SVt_PVIV: | |
7693 | case SVt_PVNV: | |
7694 | case SVt_PVMG: | |
7695 | case SVt_PVBM: | |
7696 | if (SvROK(sv)) | |
7697 | return "REF"; | |
7698 | else | |
7699 | return "SCALAR"; | |
ec6f298e | 7700 | |
206b424e | 7701 | case SVt_PVLV: return (char *) (SvROK(sv) ? "REF" |
ac388100 JH |
7702 | /* tied lvalues should appear to be |
7703 | * scalars for backwards compatitbility */ | |
7704 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
206b424e | 7705 | ? "SCALAR" : "LVALUE"); |
a0d0e21e LW |
7706 | case SVt_PVAV: return "ARRAY"; |
7707 | case SVt_PVHV: return "HASH"; | |
7708 | case SVt_PVCV: return "CODE"; | |
7709 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 7710 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 7711 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
7712 | default: return "UNKNOWN"; |
7713 | } | |
7714 | } | |
7715 | } | |
7716 | ||
954c1994 GS |
7717 | /* |
7718 | =for apidoc sv_isobject | |
7719 | ||
7720 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7721 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7722 | will return false. | |
7723 | ||
7724 | =cut | |
7725 | */ | |
7726 | ||
463ee0b2 | 7727 | int |
864dbfa3 | 7728 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7729 | { |
68dc0745 | 7730 | if (!sv) |
7731 | return 0; | |
7732 | if (SvGMAGICAL(sv)) | |
7733 | mg_get(sv); | |
85e6fe83 LW |
7734 | if (!SvROK(sv)) |
7735 | return 0; | |
7736 | sv = (SV*)SvRV(sv); | |
7737 | if (!SvOBJECT(sv)) | |
7738 | return 0; | |
7739 | return 1; | |
7740 | } | |
7741 | ||
954c1994 GS |
7742 | /* |
7743 | =for apidoc sv_isa | |
7744 | ||
7745 | Returns a boolean indicating whether the SV is blessed into the specified | |
7746 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7747 | an inheritance relationship. | |
7748 | ||
7749 | =cut | |
7750 | */ | |
7751 | ||
85e6fe83 | 7752 | int |
864dbfa3 | 7753 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7754 | { |
26ab6a78 | 7755 | const char *hvname; |
68dc0745 | 7756 | if (!sv) |
7757 | return 0; | |
7758 | if (SvGMAGICAL(sv)) | |
7759 | mg_get(sv); | |
ed6116ce | 7760 | if (!SvROK(sv)) |
463ee0b2 | 7761 | return 0; |
ed6116ce LW |
7762 | sv = (SV*)SvRV(sv); |
7763 | if (!SvOBJECT(sv)) | |
463ee0b2 | 7764 | return 0; |
26ab6a78 NC |
7765 | hvname = HvNAME_get(SvSTASH(sv)); |
7766 | if (!hvname) | |
3198e4e5 | 7767 | return 0; |
463ee0b2 | 7768 | |
26ab6a78 | 7769 | return strEQ(hvname, name); |
463ee0b2 LW |
7770 | } |
7771 | ||
954c1994 GS |
7772 | /* |
7773 | =for apidoc newSVrv | |
7774 | ||
7775 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7776 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7777 | be blessed in the specified package. The new SV is returned and its | |
7778 | reference count is 1. | |
7779 | ||
7780 | =cut | |
7781 | */ | |
7782 | ||
463ee0b2 | 7783 | SV* |
864dbfa3 | 7784 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7785 | { |
463ee0b2 LW |
7786 | SV *sv; |
7787 | ||
4561caa4 | 7788 | new_SV(sv); |
51cf62d8 | 7789 | |
2213622d | 7790 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 7791 | SvAMAGIC_off(rv); |
51cf62d8 | 7792 | |
0199fce9 | 7793 | if (SvTYPE(rv) >= SVt_PVMG) { |
8c18bf38 | 7794 | const U32 refcnt = SvREFCNT(rv); |
0199fce9 JD |
7795 | SvREFCNT(rv) = 0; |
7796 | sv_clear(rv); | |
7797 | SvFLAGS(rv) = 0; | |
7798 | SvREFCNT(rv) = refcnt; | |
7799 | } | |
7800 | ||
51cf62d8 | 7801 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7802 | sv_upgrade(rv, SVt_RV); |
7803 | else if (SvTYPE(rv) > SVt_RV) { | |
676a626c | 7804 | SvPV_free(rv); |
0199fce9 JD |
7805 | SvCUR_set(rv, 0); |
7806 | SvLEN_set(rv, 0); | |
7807 | } | |
51cf62d8 | 7808 | |
7460c263 | 7809 | SvOK_off(rv); |
a8dc4fe8 | 7810 | SvRV_set(rv, sv); |
ed6116ce | 7811 | SvROK_on(rv); |
463ee0b2 | 7812 | |
a0d0e21e LW |
7813 | if (classname) { |
7814 | HV* stash = gv_stashpv(classname, TRUE); | |
7815 | (void)sv_bless(rv, stash); | |
7816 | } | |
7817 | return sv; | |
7818 | } | |
7819 | ||
954c1994 GS |
7820 | /* |
7821 | =for apidoc sv_setref_pv | |
7822 | ||
7823 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7824 | argument will be upgraded to an RV. That RV will be modified to point to | |
7825 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7826 | into the SV. The C<classname> argument indicates the package for the | |
7827 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7828 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7829 | |
7830 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7831 | objects will become corrupted by the pointer copy process. | |
7832 | ||
7833 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7834 | ||
7835 | =cut | |
7836 | */ | |
7837 | ||
a0d0e21e | 7838 | SV* |
864dbfa3 | 7839 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7840 | { |
189b2af5 | 7841 | if (!pv) { |
3280af22 | 7842 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7843 | SvSETMAGIC(rv); |
7844 | } | |
a0d0e21e | 7845 | else |
56431972 | 7846 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7847 | return rv; |
7848 | } | |
7849 | ||
954c1994 GS |
7850 | /* |
7851 | =for apidoc sv_setref_iv | |
7852 | ||
7853 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7854 | argument will be upgraded to an RV. That RV will be modified to point to | |
7855 | the new SV. The C<classname> argument indicates the package for the | |
7856 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7857 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7858 | |
7859 | =cut | |
7860 | */ | |
7861 | ||
a0d0e21e | 7862 | SV* |
864dbfa3 | 7863 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7864 | { |
7865 | sv_setiv(newSVrv(rv,classname), iv); | |
7866 | return rv; | |
7867 | } | |
7868 | ||
954c1994 | 7869 | /* |
e1c57cef JH |
7870 | =for apidoc sv_setref_uv |
7871 | ||
7872 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7873 | argument will be upgraded to an RV. That RV will be modified to point to | |
7874 | the new SV. The C<classname> argument indicates the package for the | |
7875 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7876 | will have a reference count of 1, and the RV will be returned. |
e1c57cef JH |
7877 | |
7878 | =cut | |
7879 | */ | |
7880 | ||
7881 | SV* | |
7882 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7883 | { | |
7884 | sv_setuv(newSVrv(rv,classname), uv); | |
7885 | return rv; | |
7886 | } | |
7887 | ||
7888 | /* | |
954c1994 GS |
7889 | =for apidoc sv_setref_nv |
7890 | ||
7891 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7892 | argument will be upgraded to an RV. That RV will be modified to point to | |
7893 | the new SV. The C<classname> argument indicates the package for the | |
7894 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7895 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7896 | |
7897 | =cut | |
7898 | */ | |
7899 | ||
a0d0e21e | 7900 | SV* |
65202027 | 7901 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7902 | { |
7903 | sv_setnv(newSVrv(rv,classname), nv); | |
7904 | return rv; | |
7905 | } | |
463ee0b2 | 7906 | |
954c1994 GS |
7907 | /* |
7908 | =for apidoc sv_setref_pvn | |
7909 | ||
7910 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7911 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7912 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7913 | argument indicates the package for the blessing. Set C<classname> to | |
89e79dea JH |
7914 | C<Nullch> to avoid the blessing. The new SV will have a reference count |
7915 | of 1, and the RV will be returned. | |
954c1994 GS |
7916 | |
7917 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7918 | ||
7919 | =cut | |
7920 | */ | |
7921 | ||
a0d0e21e | 7922 | SV* |
864dbfa3 | 7923 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7924 | { |
7925 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7926 | return rv; |
7927 | } | |
7928 | ||
954c1994 GS |
7929 | /* |
7930 | =for apidoc sv_bless | |
7931 | ||
7932 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7933 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7934 | of the SV is unaffected. | |
7935 | ||
7936 | =cut | |
7937 | */ | |
7938 | ||
a0d0e21e | 7939 | SV* |
864dbfa3 | 7940 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7941 | { |
76e3520e | 7942 | SV *tmpRef; |
a0d0e21e | 7943 | if (!SvROK(sv)) |
cea2e8a9 | 7944 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7945 | tmpRef = SvRV(sv); |
7946 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7947 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7948 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7949 | if (SvOBJECT(tmpRef)) { |
7950 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7951 | --PL_sv_objcount; |
76e3520e | 7952 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7953 | } |
a0d0e21e | 7954 | } |
76e3520e GS |
7955 | SvOBJECT_on(tmpRef); |
7956 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7957 | ++PL_sv_objcount; |
76e3520e | 7958 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
a8dc4fe8 | 7959 | SvSTASH_set(tmpRef, (HV*)SvREFCNT_inc(stash)); |
a0d0e21e | 7960 | |
2e3febc6 CS |
7961 | if (Gv_AMG(stash)) |
7962 | SvAMAGIC_on(sv); | |
7963 | else | |
7964 | SvAMAGIC_off(sv); | |
a0d0e21e | 7965 | |
1edbfb88 AB |
7966 | if(SvSMAGICAL(tmpRef)) |
7967 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
7968 | mg_set(tmpRef); | |
7969 | ||
7970 | ||
ecdeb87c | 7971 | |
a0d0e21e LW |
7972 | return sv; |
7973 | } | |
7974 | ||
645c22ef | 7975 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
7976 | */ |
7977 | ||
76e3520e | 7978 | STATIC void |
cea2e8a9 | 7979 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7980 | { |
850fabdf GS |
7981 | void *xpvmg; |
7982 | ||
a0d0e21e LW |
7983 | assert(SvTYPE(sv) == SVt_PVGV); |
7984 | SvFAKE_off(sv); | |
7985 | if (GvGP(sv)) | |
1edc1566 | 7986 | gp_free((GV*)sv); |
e826b3c7 GS |
7987 | if (GvSTASH(sv)) { |
7988 | SvREFCNT_dec(GvSTASH(sv)); | |
7989 | GvSTASH(sv) = Nullhv; | |
7990 | } | |
14befaf4 | 7991 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7992 | Safefree(GvNAME(sv)); |
a5f75d66 | 7993 | GvMULTI_off(sv); |
850fabdf GS |
7994 | |
7995 | /* need to keep SvANY(sv) in the right arena */ | |
7996 | xpvmg = new_XPVMG(); | |
7997 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7998 | del_XPVGV(SvANY(sv)); | |
7999 | SvANY(sv) = xpvmg; | |
8000 | ||
a0d0e21e LW |
8001 | SvFLAGS(sv) &= ~SVTYPEMASK; |
8002 | SvFLAGS(sv) |= SVt_PVMG; | |
8003 | } | |
8004 | ||
954c1994 | 8005 | /* |
840a7b70 | 8006 | =for apidoc sv_unref_flags |
954c1994 GS |
8007 | |
8008 | Unsets the RV status of the SV, and decrements the reference count of | |
8009 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
8010 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
8011 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
8012 | (otherwise the decrementing is conditional on the reference count being | |
8013 | different from one or the reference being a readonly SV). | |
7889fe52 | 8014 | See C<SvROK_off>. |
954c1994 GS |
8015 | |
8016 | =cut | |
8017 | */ | |
8018 | ||
ed6116ce | 8019 | void |
840a7b70 | 8020 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 8021 | { |
a0d0e21e | 8022 | SV* rv = SvRV(sv); |
810b8aa5 GS |
8023 | |
8024 | if (SvWEAKREF(sv)) { | |
8025 | sv_del_backref(sv); | |
8026 | SvWEAKREF_off(sv); | |
a8dc4fe8 | 8027 | SvRV_set(sv, NULL); |
810b8aa5 GS |
8028 | return; |
8029 | } | |
a8dc4fe8 | 8030 | SvRV_set(sv, NULL); |
ed6116ce | 8031 | SvROK_off(sv); |
5e8f8cda JH |
8032 | /* You can't have a || SvREADONLY(rv) here, as $a = $$a, where $a was |
8033 | assigned to as BEGIN {$a = \"Foo"} will fail. */ | |
8034 | if (SvREFCNT(rv) != 1 || (flags & SV_IMMEDIATE_UNREF)) | |
4633a7c4 | 8035 | SvREFCNT_dec(rv); |
840a7b70 | 8036 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 8037 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 8038 | } |
8990e307 | 8039 | |
840a7b70 IZ |
8040 | /* |
8041 | =for apidoc sv_unref | |
8042 | ||
8043 | Unsets the RV status of the SV, and decrements the reference count of | |
8044 | whatever was being referenced by the RV. This can almost be thought of | |
8045 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 8046 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
8047 | |
8048 | =cut | |
8049 | */ | |
8050 | ||
8051 | void | |
8052 | Perl_sv_unref(pTHX_ SV *sv) | |
8053 | { | |
8054 | sv_unref_flags(sv, 0); | |
8055 | } | |
8056 | ||
645c22ef DM |
8057 | /* |
8058 | =for apidoc sv_taint | |
8059 | ||
8060 | Taint an SV. Use C<SvTAINTED_on> instead. | |
8061 | =cut | |
8062 | */ | |
8063 | ||
bbce6d69 | 8064 | void |
864dbfa3 | 8065 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 8066 | { |
14befaf4 | 8067 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 8068 | } |
8069 | ||
645c22ef DM |
8070 | /* |
8071 | =for apidoc sv_untaint | |
8072 | ||
8073 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
8074 | =cut | |
8075 | */ | |
8076 | ||
bbce6d69 | 8077 | void |
864dbfa3 | 8078 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 8079 | { |
13f57bf8 | 8080 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 8081 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 8082 | if (mg) |
565764a8 | 8083 | mg->mg_len &= ~1; |
36477c24 | 8084 | } |
bbce6d69 | 8085 | } |
8086 | ||
645c22ef DM |
8087 | /* |
8088 | =for apidoc sv_tainted | |
8089 | ||
8090 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
8091 | =cut | |
8092 | */ | |
8093 | ||
bbce6d69 | 8094 | bool |
864dbfa3 | 8095 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 8096 | { |
13f57bf8 | 8097 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 8098 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 8099 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 8100 | return TRUE; |
8101 | } | |
8102 | return FALSE; | |
bbce6d69 | 8103 | } |
8104 | ||
d34f9d2e JH |
8105 | /* |
8106 | =for apidoc sv_setpviv | |
8107 | ||
8108 | Copies an integer into the given SV, also updating its string value. | |
8109 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
8110 | ||
8111 | =cut | |
8112 | */ | |
8113 | ||
8114 | void | |
8115 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) | |
8116 | { | |
8117 | char buf[TYPE_CHARS(UV)]; | |
8118 | char *ebuf; | |
8119 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
8120 | ||
8121 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8122 | } | |
8123 | ||
8124 | /* | |
8125 | =for apidoc sv_setpviv_mg | |
8126 | ||
8127 | Like C<sv_setpviv>, but also handles 'set' magic. | |
8128 | ||
8129 | =cut | |
8130 | */ | |
8131 | ||
8132 | void | |
8133 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) | |
8134 | { | |
8135 | char buf[TYPE_CHARS(UV)]; | |
8136 | char *ebuf; | |
8137 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
8138 | ||
8139 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8140 | SvSETMAGIC(sv); | |
8141 | } | |
8142 | ||
cea2e8a9 | 8143 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8144 | |
8145 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8146 | * version of the main function, (which may itself be aliased to us). | |
8147 | * Don't access this version directly. | |
8148 | */ | |
8149 | ||
cea2e8a9 GS |
8150 | void |
8151 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
8152 | { | |
8153 | dTHX; | |
8154 | va_list args; | |
8155 | va_start(args, pat); | |
c5be433b | 8156 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
8157 | va_end(args); |
8158 | } | |
8159 | ||
645c22ef DM |
8160 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8161 | * version of the main function, (which may itself be aliased to us). | |
8162 | * Don't access this version directly. | |
8163 | */ | |
cea2e8a9 GS |
8164 | |
8165 | void | |
8166 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8167 | { | |
8168 | dTHX; | |
8169 | va_list args; | |
8170 | va_start(args, pat); | |
c5be433b | 8171 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 8172 | va_end(args); |
cea2e8a9 GS |
8173 | } |
8174 | #endif | |
8175 | ||
954c1994 GS |
8176 | /* |
8177 | =for apidoc sv_setpvf | |
8178 | ||
c4a661a8 NC |
8179 | Works like C<sv_catpvf> but copies the text into the SV instead of |
8180 | appending it. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
954c1994 GS |
8181 | |
8182 | =cut | |
8183 | */ | |
8184 | ||
46fc3d4c | 8185 | void |
864dbfa3 | 8186 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8187 | { |
8188 | va_list args; | |
46fc3d4c | 8189 | va_start(args, pat); |
c5be433b | 8190 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 8191 | va_end(args); |
8192 | } | |
8193 | ||
c4a661a8 NC |
8194 | /* |
8195 | =for apidoc sv_vsetpvf | |
8196 | ||
8197 | Works like C<sv_vcatpvf> but copies the text into the SV instead of | |
8198 | appending it. Does not handle 'set' magic. See C<sv_vsetpvf_mg>. | |
8199 | ||
8200 | Usually used via its frontend C<sv_setpvf>. | |
8201 | ||
8202 | =cut | |
8203 | */ | |
645c22ef | 8204 | |
c5be433b GS |
8205 | void |
8206 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
8207 | { | |
8208 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8209 | } | |
ef50df4b | 8210 | |
954c1994 GS |
8211 | /* |
8212 | =for apidoc sv_setpvf_mg | |
8213 | ||
8214 | Like C<sv_setpvf>, but also handles 'set' magic. | |
8215 | ||
8216 | =cut | |
8217 | */ | |
8218 | ||
ef50df4b | 8219 | void |
864dbfa3 | 8220 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8221 | { |
8222 | va_list args; | |
ef50df4b | 8223 | va_start(args, pat); |
c5be433b | 8224 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 8225 | va_end(args); |
c5be433b GS |
8226 | } |
8227 | ||
c4a661a8 NC |
8228 | /* |
8229 | =for apidoc sv_vsetpvf_mg | |
8230 | ||
8231 | Like C<sv_vsetpvf>, but also handles 'set' magic. | |
8232 | ||
8233 | Usually used via its frontend C<sv_setpvf_mg>. | |
8234 | ||
8235 | =cut | |
8236 | */ | |
645c22ef | 8237 | |
c5be433b GS |
8238 | void |
8239 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8240 | { | |
8241 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8242 | SvSETMAGIC(sv); |
8243 | } | |
8244 | ||
cea2e8a9 | 8245 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8246 | |
8247 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8248 | * version of the main function, (which may itself be aliased to us). | |
8249 | * Don't access this version directly. | |
8250 | */ | |
8251 | ||
cea2e8a9 GS |
8252 | void |
8253 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
8254 | { | |
8255 | dTHX; | |
8256 | va_list args; | |
8257 | va_start(args, pat); | |
c5be433b | 8258 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
8259 | va_end(args); |
8260 | } | |
8261 | ||
645c22ef DM |
8262 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8263 | * version of the main function, (which may itself be aliased to us). | |
8264 | * Don't access this version directly. | |
8265 | */ | |
8266 | ||
cea2e8a9 GS |
8267 | void |
8268 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8269 | { | |
8270 | dTHX; | |
8271 | va_list args; | |
8272 | va_start(args, pat); | |
c5be433b | 8273 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 8274 | va_end(args); |
cea2e8a9 GS |
8275 | } |
8276 | #endif | |
8277 | ||
954c1994 GS |
8278 | /* |
8279 | =for apidoc sv_catpvf | |
8280 | ||
d5ce4a7c GA |
8281 | Processes its arguments like C<sprintf> and appends the formatted |
8282 | output to an SV. If the appended data contains "wide" characters | |
8283 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
8284 | and characters >255 formatted with %c), the original SV might get | |
c4a661a8 | 8285 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. See |
a8e989f8 RB |
8286 | C<sv_catpvf_mg>. If the original SV was UTF-8, the pattern should be |
8287 | valid UTF-8; if the original SV was bytes, the pattern should be too. | |
954c1994 | 8288 | |
d5ce4a7c | 8289 | =cut */ |
954c1994 | 8290 | |
46fc3d4c | 8291 | void |
864dbfa3 | 8292 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8293 | { |
8294 | va_list args; | |
46fc3d4c | 8295 | va_start(args, pat); |
c5be433b | 8296 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 8297 | va_end(args); |
8298 | } | |
8299 | ||
c4a661a8 NC |
8300 | /* |
8301 | =for apidoc sv_vcatpvf | |
8302 | ||
8303 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8304 | to an SV. Does not handle 'set' magic. See C<sv_vcatpvf_mg>. | |
8305 | ||
8306 | Usually used via its frontend C<sv_catpvf>. | |
8307 | ||
8308 | =cut | |
8309 | */ | |
645c22ef | 8310 | |
ef50df4b | 8311 | void |
c5be433b GS |
8312 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
8313 | { | |
8314 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8315 | } | |
8316 | ||
954c1994 GS |
8317 | /* |
8318 | =for apidoc sv_catpvf_mg | |
8319 | ||
8320 | Like C<sv_catpvf>, but also handles 'set' magic. | |
8321 | ||
8322 | =cut | |
8323 | */ | |
8324 | ||
c5be433b | 8325 | void |
864dbfa3 | 8326 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8327 | { |
8328 | va_list args; | |
ef50df4b | 8329 | va_start(args, pat); |
c5be433b | 8330 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 8331 | va_end(args); |
c5be433b GS |
8332 | } |
8333 | ||
c4a661a8 NC |
8334 | /* |
8335 | =for apidoc sv_vcatpvf_mg | |
8336 | ||
8337 | Like C<sv_vcatpvf>, but also handles 'set' magic. | |
8338 | ||
8339 | Usually used via its frontend C<sv_catpvf_mg>. | |
8340 | ||
8341 | =cut | |
8342 | */ | |
645c22ef | 8343 | |
c5be433b GS |
8344 | void |
8345 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8346 | { | |
8347 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8348 | SvSETMAGIC(sv); |
8349 | } | |
8350 | ||
954c1994 GS |
8351 | /* |
8352 | =for apidoc sv_vsetpvfn | |
8353 | ||
c4a661a8 | 8354 | Works like C<sv_vcatpvfn> but copies the text into the SV instead of |
954c1994 GS |
8355 | appending it. |
8356 | ||
c4a661a8 | 8357 | Usually used via one of its frontends C<sv_vsetpvf> and C<sv_vsetpvf_mg>. |
645c22ef | 8358 | |
954c1994 GS |
8359 | =cut |
8360 | */ | |
8361 | ||
46fc3d4c | 8362 | void |
7d5ea4e7 | 8363 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8364 | { |
8365 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 8366 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 8367 | } |
8368 | ||
645c22ef DM |
8369 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
8370 | ||
2d00ba3b | 8371 | STATIC I32 |
9dd79c3f | 8372 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
8373 | { |
8374 | I32 var = 0; | |
8375 | switch (**pattern) { | |
8376 | case '1': case '2': case '3': | |
8377 | case '4': case '5': case '6': | |
8378 | case '7': case '8': case '9': | |
8379 | while (isDIGIT(**pattern)) | |
8380 | var = var * 10 + (*(*pattern)++ - '0'); | |
8381 | } | |
8382 | return var; | |
8383 | } | |
9dd79c3f | 8384 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 8385 | |
48703b5e NC |
8386 | static char * |
8387 | F0convert(NV nv, char *endbuf, STRLEN *len) | |
8388 | { | |
8c18bf38 | 8389 | const int neg = nv < 0; |
48703b5e NC |
8390 | UV uv; |
8391 | char *p = endbuf; | |
8392 | ||
8393 | if (neg) | |
8394 | nv = -nv; | |
8395 | if (nv < UV_MAX) { | |
8396 | nv += 0.5; | |
1ed1e641 | 8397 | uv = (UV)nv; |
48703b5e NC |
8398 | if (uv & 1 && uv == nv) |
8399 | uv--; /* Round to even */ | |
8400 | do { | |
8c18bf38 | 8401 | const unsigned dig = uv % 10; |
48703b5e NC |
8402 | *--p = '0' + dig; |
8403 | } while (uv /= 10); | |
8404 | if (neg) | |
8405 | *--p = '-'; | |
8406 | *len = endbuf - p; | |
8407 | return p; | |
8408 | } | |
8409 | return Nullch; | |
8410 | } | |
8411 | ||
8412 | ||
954c1994 GS |
8413 | /* |
8414 | =for apidoc sv_vcatpvfn | |
8415 | ||
8416 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8417 | to an SV. Uses an array of SVs if the C style variable argument list is | |
8418 | missing (NULL). When running with taint checks enabled, indicates via | |
8419 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
8420 | locales). | |
8421 | ||
e2b56717 AL |
8422 | XXX Except that it maybe_tainted is never assigned to. |
8423 | ||
c4a661a8 | 8424 | Usually used via one of its frontends C<sv_vcatpvf> and C<sv_vcatpvf_mg>. |
645c22ef | 8425 | |
954c1994 GS |
8426 | =cut |
8427 | */ | |
8428 | ||
0698efa8 NC |
8429 | /* XXX maybe_tainted is never assigned to, so the doc above is lying. */ |
8430 | ||
46fc3d4c | 8431 | void |
7d5ea4e7 | 8432 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8433 | { |
8434 | char *p; | |
8435 | char *q; | |
8c18bf38 | 8436 | const char *patend; |
fc36a67e | 8437 | STRLEN origlen; |
46fc3d4c | 8438 | I32 svix = 0; |
c635e13b | 8439 | static char nullstr[] = "(null)"; |
9c5ffd7c | 8440 | SV *argsv = Nullsv; |
5835a535 JH |
8441 | bool has_utf8; /* has the result utf8? */ |
8442 | bool pat_utf8; /* the pattern is in utf8? */ | |
8443 | SV *nsv = Nullsv; | |
48703b5e NC |
8444 | /* Times 4: a decimal digit takes more than 3 binary digits. |
8445 | * NV_DIG: mantissa takes than many decimal digits. | |
8446 | * Plus 32: Playing safe. */ | |
8447 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
8448 | /* large enough for "%#.#f" --chip */ | |
8449 | /* what about long double NVs? --jhi */ | |
5835a535 JH |
8450 | |
8451 | has_utf8 = pat_utf8 = DO_UTF8(sv); | |
46fc3d4c | 8452 | |
8453 | /* no matter what, this is a string now */ | |
fc36a67e | 8454 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 8455 | |
fc36a67e | 8456 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 8457 | if (patlen == 0) |
8458 | return; | |
fc36a67e | 8459 | if (patlen == 2 && pat[0] == '%') { |
8460 | switch (pat[1]) { | |
8461 | case 's': | |
c635e13b | 8462 | if (args) { |
e2b56717 | 8463 | const char *s = va_arg(*args, char*); |
c635e13b | 8464 | sv_catpv(sv, s ? s : nullstr); |
8465 | } | |
7e2040f0 | 8466 | else if (svix < svmax) { |
fc36a67e | 8467 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
8468 | if (DO_UTF8(*svargs)) |
8469 | SvUTF8_on(sv); | |
8470 | } | |
fc36a67e | 8471 | return; |
8472 | case '_': | |
8473 | if (args) { | |
7e2040f0 GS |
8474 | argsv = va_arg(*args, SV*); |
8475 | sv_catsv(sv, argsv); | |
8476 | if (DO_UTF8(argsv)) | |
8477 | SvUTF8_on(sv); | |
fc36a67e | 8478 | return; |
8479 | } | |
8480 | /* See comment on '_' below */ | |
8481 | break; | |
8482 | } | |
46fc3d4c | 8483 | } |
8484 | ||
1621ce87 | 8485 | #ifndef USE_LONG_DOUBLE |
48703b5e NC |
8486 | /* special-case "%.<number>[gf]" */ |
8487 | if ( patlen <= 5 && pat[0] == '%' && pat[1] == '.' | |
8488 | && (pat[patlen-1] == 'g' || pat[patlen-1] == 'f') ) { | |
8489 | unsigned digits = 0; | |
8490 | const char *pp; | |
8491 | ||
8492 | pp = pat + 2; | |
8493 | while (*pp >= '0' && *pp <= '9') | |
8494 | digits = 10 * digits + (*pp++ - '0'); | |
1ed1e641 | 8495 | if (pp - pat == (int)patlen - 1) { |
48703b5e NC |
8496 | NV nv; |
8497 | ||
8498 | if (args) | |
8499 | nv = (NV)va_arg(*args, double); | |
8500 | else if (svix < svmax) | |
8501 | nv = SvNV(*svargs); | |
8502 | else | |
8503 | return; | |
8504 | if (*pp == 'g') { | |
5f658b8d NC |
8505 | /* Add check for digits != 0 because it seems that some |
8506 | gconverts are buggy in this case, and we don't yet have | |
8507 | a Configure test for this. */ | |
8508 | if (digits && digits < sizeof(ebuf) - NV_DIG - 10) { | |
8509 | /* 0, point, slack */ | |
1621ce87 | 8510 | Gconvert(nv, (int)digits, 0, ebuf); |
48703b5e NC |
8511 | sv_catpv(sv, ebuf); |
8512 | if (*ebuf) /* May return an empty string for digits==0 */ | |
8513 | return; | |
8514 | } | |
8515 | } else if (!digits) { | |
8516 | STRLEN l; | |
8517 | ||
8518 | if ((p = F0convert(nv, ebuf + sizeof ebuf, &l))) { | |
8519 | sv_catpvn(sv, p, l); | |
8520 | return; | |
8521 | } | |
8522 | } | |
8523 | } | |
8524 | } | |
1621ce87 | 8525 | #endif /* !USE_LONG_DOUBLE */ |
48703b5e | 8526 | |
2cf2cfc6 | 8527 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
5b7ea690 | 8528 | has_utf8 = TRUE; |
2cf2cfc6 | 8529 | |
46fc3d4c | 8530 | patend = (char*)pat + patlen; |
8531 | for (p = (char*)pat; p < patend; p = q) { | |
8532 | bool alt = FALSE; | |
8533 | bool left = FALSE; | |
b22c7a20 | 8534 | bool vectorize = FALSE; |
211dfcf1 | 8535 | bool vectorarg = FALSE; |
2cf2cfc6 | 8536 | bool vec_utf8 = FALSE; |
46fc3d4c | 8537 | char fill = ' '; |
8538 | char plus = 0; | |
8539 | char intsize = 0; | |
8540 | STRLEN width = 0; | |
fc36a67e | 8541 | STRLEN zeros = 0; |
46fc3d4c | 8542 | bool has_precis = FALSE; |
8543 | STRLEN precis = 0; | |
d34f9d2e | 8544 | I32 osvix = svix; |
2cf2cfc6 | 8545 | bool is_utf8 = FALSE; /* is this item utf8? */ |
5b7ea690 JH |
8546 | #ifdef HAS_LDBL_SPRINTF_BUG |
8547 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
8548 | with sfio - Allen <allens@cpan.org> */ | |
8549 | bool fix_ldbl_sprintf_bug = FALSE; | |
8550 | #endif | |
8551 | ||
46fc3d4c | 8552 | char esignbuf[4]; |
a2a469f9 | 8553 | U8 utf8buf[UTF8_MAXBYTES+1]; |
46fc3d4c | 8554 | STRLEN esignlen = 0; |
8555 | ||
8556 | char *eptr = Nullch; | |
fc36a67e | 8557 | STRLEN elen = 0; |
81f715da | 8558 | SV *vecsv = Nullsv; |
a05b299f | 8559 | U8 *vecstr = Null(U8*); |
b22c7a20 | 8560 | STRLEN veclen = 0; |
934abaf1 | 8561 | char c = 0; |
46fc3d4c | 8562 | int i; |
9c5ffd7c | 8563 | unsigned base = 0; |
8c8eb53c RB |
8564 | IV iv = 0; |
8565 | UV uv = 0; | |
9e5b023a JH |
8566 | /* we need a long double target in case HAS_LONG_DOUBLE but |
8567 | not USE_LONG_DOUBLE | |
8568 | */ | |
35fff930 | 8569 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
8570 | long double nv; |
8571 | #else | |
65202027 | 8572 | NV nv; |
9e5b023a | 8573 | #endif |
46fc3d4c | 8574 | STRLEN have; |
8575 | STRLEN need; | |
8576 | STRLEN gap; | |
c05e0e2f | 8577 | const char *dotstr = "."; |
b22c7a20 | 8578 | STRLEN dotstrlen = 1; |
211dfcf1 | 8579 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 8580 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
8581 | I32 epix = 0; /* explicit precision index */ |
8582 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 8583 | bool asterisk = FALSE; |
46fc3d4c | 8584 | |
211dfcf1 | 8585 | /* echo everything up to the next format specification */ |
46fc3d4c | 8586 | for (q = p; q < patend && *q != '%'; ++q) ; |
8587 | if (q > p) { | |
5835a535 JH |
8588 | if (has_utf8 && !pat_utf8) |
8589 | sv_catpvn_utf8_upgrade(sv, p, q - p, nsv); | |
8590 | else | |
8591 | sv_catpvn(sv, p, q - p); | |
46fc3d4c | 8592 | p = q; |
8593 | } | |
8594 | if (q++ >= patend) | |
8595 | break; | |
8596 | ||
211dfcf1 HS |
8597 | /* |
8598 | We allow format specification elements in this order: | |
8599 | \d+\$ explicit format parameter index | |
8600 | [-+ 0#]+ flags | |
a472f209 | 8601 | v|\*(\d+\$)?v vector with optional (optionally specified) arg |
f8cf5370 | 8602 | 0 flag (as above): repeated to allow "v02" |
211dfcf1 HS |
8603 | \d+|\*(\d+\$)? width using optional (optionally specified) arg |
8604 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
8605 | [hlqLV] size | |
8606 | [%bcdefginopsux_DFOUX] format (mandatory) | |
8607 | */ | |
8608 | if (EXPECT_NUMBER(q, width)) { | |
8609 | if (*q == '$') { | |
8610 | ++q; | |
8611 | efix = width; | |
8612 | } else { | |
8613 | goto gotwidth; | |
8614 | } | |
8615 | } | |
8616 | ||
fc36a67e | 8617 | /* FLAGS */ |
8618 | ||
46fc3d4c | 8619 | while (*q) { |
8620 | switch (*q) { | |
8621 | case ' ': | |
8622 | case '+': | |
8623 | plus = *q++; | |
8624 | continue; | |
8625 | ||
8626 | case '-': | |
8627 | left = TRUE; | |
8628 | q++; | |
8629 | continue; | |
8630 | ||
8631 | case '0': | |
8632 | fill = *q++; | |
8633 | continue; | |
8634 | ||
8635 | case '#': | |
8636 | alt = TRUE; | |
8637 | q++; | |
8638 | continue; | |
8639 | ||
fc36a67e | 8640 | default: |
8641 | break; | |
8642 | } | |
8643 | break; | |
8644 | } | |
46fc3d4c | 8645 | |
211dfcf1 | 8646 | tryasterisk: |
eb3fce90 | 8647 | if (*q == '*') { |
211dfcf1 HS |
8648 | q++; |
8649 | if (EXPECT_NUMBER(q, ewix)) | |
8650 | if (*q++ != '$') | |
8651 | goto unknown; | |
eb3fce90 | 8652 | asterisk = TRUE; |
211dfcf1 HS |
8653 | } |
8654 | if (*q == 'v') { | |
eb3fce90 | 8655 | q++; |
211dfcf1 HS |
8656 | if (vectorize) |
8657 | goto unknown; | |
9cbac4c7 | 8658 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
8659 | evix = ewix; |
8660 | ewix = 0; | |
8661 | asterisk = FALSE; | |
8662 | } | |
8663 | vectorize = TRUE; | |
8664 | goto tryasterisk; | |
eb3fce90 JH |
8665 | } |
8666 | ||
211dfcf1 | 8667 | if (!asterisk) |
f8cf5370 JH |
8668 | if( *q == '0' ) |
8669 | fill = *q++; | |
211dfcf1 HS |
8670 | EXPECT_NUMBER(q, width); |
8671 | ||
9a2a392e RB |
8672 | #ifdef CHECK_FORMAT |
8673 | if ((*q == 'p') && left) { | |
8674 | vectorize = (width == 1); | |
8675 | } | |
8676 | #endif | |
211dfcf1 HS |
8677 | if (vectorize) { |
8678 | if (vectorarg) { | |
8679 | if (args) | |
8680 | vecsv = va_arg(*args, SV*); | |
8681 | else | |
8682 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
219ef941 | 8683 | svargs[evix ? evix-1 : svix++] : &PL_sv_undef; |
4459522c | 8684 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 | 8685 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 8686 | is_utf8 = TRUE; |
211dfcf1 HS |
8687 | } |
8688 | if (args) { | |
8689 | vecsv = va_arg(*args, SV*); | |
8690 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8691 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 8692 | } |
211dfcf1 HS |
8693 | else if (efix ? efix <= svmax : svix < svmax) { |
8694 | vecsv = svargs[efix ? efix-1 : svix++]; | |
8695 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8696 | vec_utf8 = DO_UTF8(vecsv); |
211dfcf1 HS |
8697 | } |
8698 | else { | |
8699 | vecstr = (U8*)""; | |
8700 | veclen = 0; | |
8701 | } | |
eb3fce90 | 8702 | } |
fc36a67e | 8703 | |
eb3fce90 | 8704 | if (asterisk) { |
fc36a67e | 8705 | if (args) |
8706 | i = va_arg(*args, int); | |
8707 | else | |
eb3fce90 JH |
8708 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
8709 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8710 | left |= (i < 0); |
8711 | width = (i < 0) ? -i : i; | |
fc36a67e | 8712 | } |
211dfcf1 | 8713 | gotwidth: |
fc36a67e | 8714 | |
8715 | /* PRECISION */ | |
46fc3d4c | 8716 | |
fc36a67e | 8717 | if (*q == '.') { |
8718 | q++; | |
8719 | if (*q == '*') { | |
211dfcf1 | 8720 | q++; |
7b8dd722 HS |
8721 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') |
8722 | goto unknown; | |
8723 | /* XXX: todo, support specified precision parameter */ | |
8724 | if (epix) | |
211dfcf1 | 8725 | goto unknown; |
46fc3d4c | 8726 | if (args) |
8727 | i = va_arg(*args, int); | |
8728 | else | |
eb3fce90 JH |
8729 | i = (ewix ? ewix <= svmax : svix < svmax) |
8730 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8731 | precis = (i < 0) ? 0 : i; |
fc36a67e | 8732 | } |
8733 | else { | |
8734 | precis = 0; | |
8735 | while (isDIGIT(*q)) | |
8736 | precis = precis * 10 + (*q++ - '0'); | |
8737 | } | |
8738 | has_precis = TRUE; | |
8739 | } | |
46fc3d4c | 8740 | |
fc36a67e | 8741 | /* SIZE */ |
46fc3d4c | 8742 | |
fc36a67e | 8743 | switch (*q) { |
c623ac67 GS |
8744 | #ifdef WIN32 |
8745 | case 'I': /* Ix, I32x, and I64x */ | |
8746 | # ifdef WIN64 | |
8747 | if (q[1] == '6' && q[2] == '4') { | |
8748 | q += 3; | |
8749 | intsize = 'q'; | |
8750 | break; | |
8751 | } | |
8752 | # endif | |
8753 | if (q[1] == '3' && q[2] == '2') { | |
8754 | q += 3; | |
8755 | break; | |
8756 | } | |
8757 | # ifdef WIN64 | |
8758 | intsize = 'q'; | |
8759 | # endif | |
8760 | q++; | |
8761 | break; | |
8762 | #endif | |
9e5b023a | 8763 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 8764 | case 'L': /* Ld */ |
e5c81feb | 8765 | /* FALL THROUGH */ |
e5c81feb | 8766 | #ifdef HAS_QUAD |
6f9bb7fd | 8767 | case 'q': /* qd */ |
9e5b023a | 8768 | #endif |
6f9bb7fd GS |
8769 | intsize = 'q'; |
8770 | q++; | |
8771 | break; | |
8772 | #endif | |
fc36a67e | 8773 | case 'l': |
9e5b023a | 8774 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
5b7ea690 | 8775 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 8776 | intsize = 'q'; |
8777 | q += 2; | |
46fc3d4c | 8778 | break; |
cf2093f6 | 8779 | } |
fc36a67e | 8780 | #endif |
6f9bb7fd | 8781 | /* FALL THROUGH */ |
fc36a67e | 8782 | case 'h': |
cf2093f6 | 8783 | /* FALL THROUGH */ |
fc36a67e | 8784 | case 'V': |
8785 | intsize = *q++; | |
46fc3d4c | 8786 | break; |
8787 | } | |
8788 | ||
fc36a67e | 8789 | /* CONVERSION */ |
8790 | ||
211dfcf1 HS |
8791 | if (*q == '%') { |
8792 | eptr = q++; | |
8793 | elen = 1; | |
8794 | goto string; | |
8795 | } | |
8796 | ||
be75b157 HS |
8797 | if (vectorize) |
8798 | argsv = vecsv; | |
8799 | else if (!args) | |
211dfcf1 HS |
8800 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
8801 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
8802 | ||
46fc3d4c | 8803 | switch (c = *q++) { |
8804 | ||
8805 | /* STRINGS */ | |
8806 | ||
46fc3d4c | 8807 | case 'c': |
be75b157 | 8808 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
8809 | if ((uv > 255 || |
8810 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 8811 | && !IN_BYTES) { |
dfe13c55 | 8812 | eptr = (char*)utf8buf; |
9041c2e3 | 8813 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 8814 | is_utf8 = TRUE; |
7e2040f0 GS |
8815 | } |
8816 | else { | |
8817 | c = (char)uv; | |
8818 | eptr = &c; | |
8819 | elen = 1; | |
a0ed51b3 | 8820 | } |
46fc3d4c | 8821 | goto string; |
8822 | ||
46fc3d4c | 8823 | case 's': |
be75b157 | 8824 | if (args && !vectorize) { |
fc36a67e | 8825 | eptr = va_arg(*args, char*); |
c635e13b | 8826 | if (eptr) |
1d7c1841 GS |
8827 | #ifdef MACOS_TRADITIONAL |
8828 | /* On MacOS, %#s format is used for Pascal strings */ | |
8829 | if (alt) | |
8830 | elen = *eptr++; | |
8831 | else | |
8832 | #endif | |
c635e13b | 8833 | elen = strlen(eptr); |
8834 | else { | |
8835 | eptr = nullstr; | |
8836 | elen = sizeof nullstr - 1; | |
8837 | } | |
46fc3d4c | 8838 | } |
211dfcf1 | 8839 | else { |
7e2040f0 GS |
8840 | eptr = SvPVx(argsv, elen); |
8841 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
8842 | if (has_precis && precis < elen) { |
8843 | I32 p = precis; | |
7e2040f0 | 8844 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
8845 | precis = p; |
8846 | } | |
8847 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 8848 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 8849 | } |
2cf2cfc6 | 8850 | is_utf8 = TRUE; |
a0ed51b3 LW |
8851 | } |
8852 | } | |
46fc3d4c | 8853 | goto string; |
8854 | ||
fc36a67e | 8855 | case '_': |
9982c483 RB |
8856 | #ifdef CHECK_FORMAT |
8857 | format_sv: | |
8858 | #endif | |
fc36a67e | 8859 | /* |
8860 | * The "%_" hack might have to be changed someday, | |
8861 | * if ISO or ANSI decide to use '_' for something. | |
8862 | * So we keep it hidden from users' code. | |
8863 | */ | |
be75b157 | 8864 | if (!args || vectorize) |
fc36a67e | 8865 | goto unknown; |
211dfcf1 | 8866 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
8867 | eptr = SvPVx(argsv, elen); |
8868 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 8869 | is_utf8 = TRUE; |
fc36a67e | 8870 | |
46fc3d4c | 8871 | string: |
b22c7a20 | 8872 | vectorize = FALSE; |
46fc3d4c | 8873 | if (has_precis && elen > precis) |
8874 | elen = precis; | |
8875 | break; | |
8876 | ||
8877 | /* INTEGERS */ | |
8878 | ||
fc36a67e | 8879 | case 'p': |
9982c483 RB |
8880 | #ifdef CHECK_FORMAT |
8881 | if (left) { | |
8882 | left = FALSE; | |
8883 | if (!width) | |
8884 | goto format_sv; /* %-p -> %_ */ | |
9a2a392e RB |
8885 | if (vectorize) { |
8886 | width = 0; | |
8887 | goto format_vd; /* %-1p -> %vd */ | |
8888 | } | |
9982c483 RB |
8889 | precis = width; |
8890 | has_precis = TRUE; | |
8891 | width = 0; | |
8892 | goto format_sv; /* %-Np -> %.N_ */ | |
8893 | } | |
8894 | #endif | |
be75b157 | 8895 | if (alt || vectorize) |
c2e66d9e | 8896 | goto unknown; |
211dfcf1 | 8897 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 8898 | base = 16; |
8899 | goto integer; | |
8900 | ||
46fc3d4c | 8901 | case 'D': |
29fe7a80 | 8902 | #ifdef IV_IS_QUAD |
22f3ae8c | 8903 | intsize = 'q'; |
29fe7a80 | 8904 | #else |
46fc3d4c | 8905 | intsize = 'l'; |
29fe7a80 | 8906 | #endif |
46fc3d4c | 8907 | /* FALL THROUGH */ |
8908 | case 'd': | |
8909 | case 'i': | |
9a2a392e RB |
8910 | #ifdef CHECK_FORMAT |
8911 | format_vd: | |
8912 | #endif | |
b22c7a20 | 8913 | if (vectorize) { |
ba210ebe | 8914 | STRLEN ulen; |
211dfcf1 HS |
8915 | if (!veclen) |
8916 | continue; | |
2cf2cfc6 A |
8917 | if (vec_utf8) |
8918 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8919 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8920 | else { |
e83d50c9 | 8921 | uv = *vecstr; |
b22c7a20 GS |
8922 | ulen = 1; |
8923 | } | |
8924 | vecstr += ulen; | |
8925 | veclen -= ulen; | |
e83d50c9 JP |
8926 | if (plus) |
8927 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
8928 | } |
8929 | else if (args) { | |
46fc3d4c | 8930 | switch (intsize) { |
8931 | case 'h': iv = (short)va_arg(*args, int); break; | |
46fc3d4c | 8932 | case 'l': iv = va_arg(*args, long); break; |
fc36a67e | 8933 | case 'V': iv = va_arg(*args, IV); break; |
1ed1e641 | 8934 | default: iv = va_arg(*args, int); break; |
cf2093f6 JH |
8935 | #ifdef HAS_QUAD |
8936 | case 'q': iv = va_arg(*args, Quad_t); break; | |
8937 | #endif | |
46fc3d4c | 8938 | } |
8939 | } | |
8940 | else { | |
1ed1e641 | 8941 | IV tiv = SvIVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 8942 | switch (intsize) { |
1ed1e641 MHM |
8943 | case 'h': iv = (short)tiv; break; |
8944 | case 'l': iv = (long)tiv; break; | |
8945 | case 'V': | |
8946 | default: iv = tiv; break; | |
cf2093f6 | 8947 | #ifdef HAS_QUAD |
1ed1e641 | 8948 | case 'q': iv = (Quad_t)tiv; break; |
cf2093f6 | 8949 | #endif |
46fc3d4c | 8950 | } |
8951 | } | |
e83d50c9 JP |
8952 | if ( !vectorize ) /* we already set uv above */ |
8953 | { | |
8954 | if (iv >= 0) { | |
8955 | uv = iv; | |
8956 | if (plus) | |
8957 | esignbuf[esignlen++] = plus; | |
8958 | } | |
8959 | else { | |
8960 | uv = -iv; | |
8961 | esignbuf[esignlen++] = '-'; | |
8962 | } | |
46fc3d4c | 8963 | } |
8964 | base = 10; | |
8965 | goto integer; | |
8966 | ||
fc36a67e | 8967 | case 'U': |
29fe7a80 | 8968 | #ifdef IV_IS_QUAD |
22f3ae8c | 8969 | intsize = 'q'; |
29fe7a80 | 8970 | #else |
fc36a67e | 8971 | intsize = 'l'; |
29fe7a80 | 8972 | #endif |
fc36a67e | 8973 | /* FALL THROUGH */ |
8974 | case 'u': | |
8975 | base = 10; | |
8976 | goto uns_integer; | |
8977 | ||
4f19785b WSI |
8978 | case 'b': |
8979 | base = 2; | |
8980 | goto uns_integer; | |
8981 | ||
46fc3d4c | 8982 | case 'O': |
29fe7a80 | 8983 | #ifdef IV_IS_QUAD |
22f3ae8c | 8984 | intsize = 'q'; |
29fe7a80 | 8985 | #else |
46fc3d4c | 8986 | intsize = 'l'; |
29fe7a80 | 8987 | #endif |
46fc3d4c | 8988 | /* FALL THROUGH */ |
8989 | case 'o': | |
8990 | base = 8; | |
8991 | goto uns_integer; | |
8992 | ||
8993 | case 'X': | |
46fc3d4c | 8994 | case 'x': |
8995 | base = 16; | |
46fc3d4c | 8996 | |
8997 | uns_integer: | |
b22c7a20 | 8998 | if (vectorize) { |
ba210ebe | 8999 | STRLEN ulen; |
b22c7a20 | 9000 | vector: |
211dfcf1 HS |
9001 | if (!veclen) |
9002 | continue; | |
2cf2cfc6 A |
9003 | if (vec_utf8) |
9004 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
9005 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 9006 | else { |
a05b299f | 9007 | uv = *vecstr; |
b22c7a20 GS |
9008 | ulen = 1; |
9009 | } | |
9010 | vecstr += ulen; | |
9011 | veclen -= ulen; | |
9012 | } | |
9013 | else if (args) { | |
46fc3d4c | 9014 | switch (intsize) { |
9015 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
46fc3d4c | 9016 | case 'l': uv = va_arg(*args, unsigned long); break; |
fc36a67e | 9017 | case 'V': uv = va_arg(*args, UV); break; |
1ed1e641 | 9018 | default: uv = va_arg(*args, unsigned); break; |
cf2093f6 | 9019 | #ifdef HAS_QUAD |
1ed1e641 | 9020 | case 'q': uv = va_arg(*args, Uquad_t); break; |
cf2093f6 | 9021 | #endif |
46fc3d4c | 9022 | } |
9023 | } | |
9024 | else { | |
1ed1e641 | 9025 | UV tuv = SvUVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 9026 | switch (intsize) { |
1ed1e641 MHM |
9027 | case 'h': uv = (unsigned short)tuv; break; |
9028 | case 'l': uv = (unsigned long)tuv; break; | |
9029 | case 'V': | |
9030 | default: uv = tuv; break; | |
cf2093f6 | 9031 | #ifdef HAS_QUAD |
1ed1e641 | 9032 | case 'q': uv = (Uquad_t)tuv; break; |
cf2093f6 | 9033 | #endif |
46fc3d4c | 9034 | } |
9035 | } | |
9036 | ||
9037 | integer: | |
46fc3d4c | 9038 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 9039 | switch (base) { |
9040 | unsigned dig; | |
9041 | case 16: | |
c10ed8b9 HS |
9042 | if (!uv) |
9043 | alt = FALSE; | |
1d7c1841 GS |
9044 | p = (char*)((c == 'X') |
9045 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 9046 | do { |
9047 | dig = uv & 15; | |
9048 | *--eptr = p[dig]; | |
9049 | } while (uv >>= 4); | |
9050 | if (alt) { | |
46fc3d4c | 9051 | esignbuf[esignlen++] = '0'; |
fc36a67e | 9052 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 9053 | } |
fc36a67e | 9054 | break; |
9055 | case 8: | |
9056 | do { | |
9057 | dig = uv & 7; | |
9058 | *--eptr = '0' + dig; | |
9059 | } while (uv >>= 3); | |
9060 | if (alt && *eptr != '0') | |
9061 | *--eptr = '0'; | |
9062 | break; | |
4f19785b WSI |
9063 | case 2: |
9064 | do { | |
9065 | dig = uv & 1; | |
9066 | *--eptr = '0' + dig; | |
9067 | } while (uv >>= 1); | |
eda88b6d JH |
9068 | if (alt) { |
9069 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 9070 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 9071 | } |
4f19785b | 9072 | break; |
fc36a67e | 9073 | default: /* it had better be ten or less */ |
6bc102ca | 9074 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 9075 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
9076 | STRLEN n; |
9077 | char *s = SvPV(sv,n); | |
9078 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
9079 | && (n == 2 || !isDIGIT(s[n-3]))) | |
9080 | { | |
9014280d | 9081 | Perl_warner(aTHX_ packWARN(WARN_Y2K), |
6bc102ca GS |
9082 | "Possible Y2K bug: %%%c %s", |
9083 | c, "format string following '19'"); | |
9084 | } | |
9085 | } | |
9086 | #endif | |
fc36a67e | 9087 | do { |
9088 | dig = uv % base; | |
9089 | *--eptr = '0' + dig; | |
9090 | } while (uv /= base); | |
9091 | break; | |
46fc3d4c | 9092 | } |
9093 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
9094 | if (has_precis) { |
9095 | if (precis > elen) | |
9096 | zeros = precis - elen; | |
9097 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
9098 | elen = 0; | |
9099 | } | |
46fc3d4c | 9100 | break; |
9101 | ||
9102 | /* FLOATING POINT */ | |
9103 | ||
fc36a67e | 9104 | case 'F': |
9105 | c = 'f'; /* maybe %F isn't supported here */ | |
9106 | /* FALL THROUGH */ | |
46fc3d4c | 9107 | case 'e': case 'E': |
fc36a67e | 9108 | case 'f': |
46fc3d4c | 9109 | case 'g': case 'G': |
9110 | ||
9111 | /* This is evil, but floating point is even more evil */ | |
9112 | ||
9e5b023a JH |
9113 | /* for SV-style calling, we can only get NV |
9114 | for C-style calling, we assume %f is double; | |
9115 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
9116 | */ | |
9117 | switch (intsize) { | |
9118 | case 'V': | |
9119 | #if defined(USE_LONG_DOUBLE) | |
9120 | intsize = 'q'; | |
9121 | #endif | |
9122 | break; | |
f8cf5370 JH |
9123 | /* [perl #20339] - we should accept and ignore %lf rather than die */ |
9124 | case 'l': | |
9125 | /* FALL THROUGH */ | |
9e5b023a JH |
9126 | default: |
9127 | #if defined(USE_LONG_DOUBLE) | |
9128 | intsize = args ? 0 : 'q'; | |
9129 | #endif | |
9130 | break; | |
9131 | case 'q': | |
9132 | #if defined(HAS_LONG_DOUBLE) | |
9133 | break; | |
9134 | #else | |
9135 | /* FALL THROUGH */ | |
9136 | #endif | |
9137 | case 'h': | |
9e5b023a JH |
9138 | goto unknown; |
9139 | } | |
9140 | ||
9141 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 9142 | nv = (args && !vectorize) ? |
35fff930 JH |
9143 | #if LONG_DOUBLESIZE > DOUBLESIZE |
9144 | intsize == 'q' ? | |
5b7ea690 JH |
9145 | va_arg(*args, long double) : |
9146 | va_arg(*args, double) | |
35fff930 | 9147 | #else |
5b7ea690 | 9148 | va_arg(*args, double) |
35fff930 | 9149 | #endif |
9e5b023a | 9150 | : SvNVx(argsv); |
fc36a67e | 9151 | |
9152 | need = 0; | |
be75b157 | 9153 | vectorize = FALSE; |
fc36a67e | 9154 | if (c != 'e' && c != 'E') { |
9155 | i = PERL_INT_MIN; | |
9e5b023a JH |
9156 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
9157 | will cast our (long double) to (double) */ | |
73b309ea | 9158 | (void)Perl_frexp(nv, &i); |
fc36a67e | 9159 | if (i == PERL_INT_MIN) |
cea2e8a9 | 9160 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 9161 | if (i > 0) |
fc36a67e | 9162 | need = BIT_DIGITS(i); |
9163 | } | |
9164 | need += has_precis ? precis : 6; /* known default */ | |
5b7ea690 | 9165 | |
fc36a67e | 9166 | if (need < width) |
9167 | need = width; | |
9168 | ||
5b7ea690 JH |
9169 | #ifdef HAS_LDBL_SPRINTF_BUG |
9170 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
9171 | with sfio - Allen <allens@cpan.org> */ | |
9172 | ||
9173 | # ifdef DBL_MAX | |
9174 | # define MY_DBL_MAX DBL_MAX | |
9175 | # else /* XXX guessing! HUGE_VAL may be defined as infinity, so not using */ | |
9176 | # if DOUBLESIZE >= 8 | |
9177 | # define MY_DBL_MAX 1.7976931348623157E+308L | |
9178 | # else | |
9179 | # define MY_DBL_MAX 3.40282347E+38L | |
9180 | # endif | |
9181 | # endif | |
9182 | ||
9183 | # ifdef HAS_LDBL_SPRINTF_BUG_LESS1 /* only between -1L & 1L - Allen */ | |
9184 | # define MY_DBL_MAX_BUG 1L | |
9185 | # else | |
9186 | # define MY_DBL_MAX_BUG MY_DBL_MAX | |
9187 | # endif | |
9188 | ||
9189 | # ifdef DBL_MIN | |
9190 | # define MY_DBL_MIN DBL_MIN | |
9191 | # else /* XXX guessing! -Allen */ | |
9192 | # if DOUBLESIZE >= 8 | |
9193 | # define MY_DBL_MIN 2.2250738585072014E-308L | |
9194 | # else | |
9195 | # define MY_DBL_MIN 1.17549435E-38L | |
9196 | # endif | |
9197 | # endif | |
9198 | ||
9199 | if ((intsize == 'q') && (c == 'f') && | |
9200 | ((nv < MY_DBL_MAX_BUG) && (nv > -MY_DBL_MAX_BUG)) && | |
9201 | (need < DBL_DIG)) { | |
9202 | /* it's going to be short enough that | |
9203 | * long double precision is not needed */ | |
9204 | ||
9205 | if ((nv <= 0L) && (nv >= -0L)) | |
9206 | fix_ldbl_sprintf_bug = TRUE; /* 0 is 0 - easiest */ | |
9207 | else { | |
9208 | /* would use Perl_fp_class as a double-check but not | |
9209 | * functional on IRIX - see perl.h comments */ | |
9210 | ||
9211 | if ((nv >= MY_DBL_MIN) || (nv <= -MY_DBL_MIN)) { | |
9212 | /* It's within the range that a double can represent */ | |
9213 | #if defined(DBL_MAX) && !defined(DBL_MIN) | |
9214 | if ((nv >= ((long double)1/DBL_MAX)) || | |
9215 | (nv <= (-(long double)1/DBL_MAX))) | |
9216 | #endif | |
9217 | fix_ldbl_sprintf_bug = TRUE; | |
9218 | } | |
9219 | } | |
9220 | if (fix_ldbl_sprintf_bug == TRUE) { | |
9221 | double temp; | |
9222 | ||
9223 | intsize = 0; | |
9224 | temp = (double)nv; | |
9225 | nv = (NV)temp; | |
9226 | } | |
9227 | } | |
9228 | ||
9229 | # undef MY_DBL_MAX | |
9230 | # undef MY_DBL_MAX_BUG | |
9231 | # undef MY_DBL_MIN | |
9232 | ||
9233 | #endif /* HAS_LDBL_SPRINTF_BUG */ | |
9234 | ||
46fc3d4c | 9235 | need += 20; /* fudge factor */ |
80252599 GS |
9236 | if (PL_efloatsize < need) { |
9237 | Safefree(PL_efloatbuf); | |
9238 | PL_efloatsize = need + 20; /* more fudge */ | |
9239 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 9240 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 9241 | } |
9242 | ||
48703b5e NC |
9243 | if ( !(width || left || plus || alt) && fill != '0' |
9244 | && has_precis && intsize != 'q' ) { /* Shortcuts */ | |
5f658b8d NC |
9245 | /* See earlier comment about buggy Gconvert when digits, |
9246 | aka precis is 0 */ | |
9247 | if ( c == 'g' && precis) { | |
1621ce87 | 9248 | Gconvert((NV)nv, (int)precis, 0, PL_efloatbuf); |
48703b5e NC |
9249 | if (*PL_efloatbuf) /* May return an empty string for digits==0 */ |
9250 | goto float_converted; | |
9251 | } else if ( c == 'f' && !precis) { | |
9252 | if ((eptr = F0convert(nv, ebuf + sizeof ebuf, &elen))) | |
9253 | break; | |
9254 | } | |
9255 | } | |
46fc3d4c | 9256 | eptr = ebuf + sizeof ebuf; |
9257 | *--eptr = '\0'; | |
9258 | *--eptr = c; | |
9e5b023a JH |
9259 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ |
9260 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) | |
9261 | if (intsize == 'q') { | |
e5c81feb JH |
9262 | /* Copy the one or more characters in a long double |
9263 | * format before the 'base' ([efgEFG]) character to | |
9264 | * the format string. */ | |
9265 | static char const prifldbl[] = PERL_PRIfldbl; | |
9266 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
9267 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 9268 | } |
65202027 | 9269 | #endif |
46fc3d4c | 9270 | if (has_precis) { |
9271 | base = precis; | |
9272 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
9273 | *--eptr = '.'; | |
9274 | } | |
9275 | if (width) { | |
9276 | base = width; | |
9277 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
9278 | } | |
9279 | if (fill == '0') | |
9280 | *--eptr = fill; | |
84902520 TB |
9281 | if (left) |
9282 | *--eptr = '-'; | |
46fc3d4c | 9283 | if (plus) |
9284 | *--eptr = plus; | |
9285 | if (alt) | |
9286 | *--eptr = '#'; | |
9287 | *--eptr = '%'; | |
9288 | ||
ff9121f8 JH |
9289 | /* No taint. Otherwise we are in the strange situation |
9290 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 9291 | * --jhi */ |
9e5b023a JH |
9292 | #if defined(HAS_LONG_DOUBLE) |
9293 | if (intsize == 'q') | |
9294 | (void)sprintf(PL_efloatbuf, eptr, nv); | |
9295 | else | |
9296 | (void)sprintf(PL_efloatbuf, eptr, (double)nv); | |
9297 | #else | |
dd8482fc | 9298 | (void)sprintf(PL_efloatbuf, eptr, nv); |
9e5b023a | 9299 | #endif |
48703b5e | 9300 | float_converted: |
80252599 GS |
9301 | eptr = PL_efloatbuf; |
9302 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 9303 | break; |
9304 | ||
fc36a67e | 9305 | /* SPECIAL */ |
9306 | ||
9307 | case 'n': | |
9308 | i = SvCUR(sv) - origlen; | |
be75b157 | 9309 | if (args && !vectorize) { |
c635e13b | 9310 | switch (intsize) { |
9311 | case 'h': *(va_arg(*args, short*)) = i; break; | |
9312 | default: *(va_arg(*args, int*)) = i; break; | |
9313 | case 'l': *(va_arg(*args, long*)) = i; break; | |
9314 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
9315 | #ifdef HAS_QUAD |
9316 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
9317 | #endif | |
c635e13b | 9318 | } |
fc36a67e | 9319 | } |
9dd79c3f | 9320 | else |
211dfcf1 | 9321 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 9322 | vectorize = FALSE; |
fc36a67e | 9323 | continue; /* not "break" */ |
9324 | ||
9325 | /* UNKNOWN */ | |
9326 | ||
46fc3d4c | 9327 | default: |
fc36a67e | 9328 | unknown: |
599cee73 | 9329 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 9330 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 9331 | SV *msg = sv_newmortal(); |
c293eb2b NC |
9332 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %sprintf: ", |
9333 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
0f4b6630 | 9334 | if (c) { |
0f4b6630 | 9335 | if (isPRINT(c)) |
1c846c1f | 9336 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
9337 | "\"%%%c\"", c & 0xFF); |
9338 | else | |
9339 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 9340 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 9341 | (UV)c & 0xFF); |
0f4b6630 | 9342 | } else |
c635e13b | 9343 | sv_catpv(msg, "end of string"); |
9014280d | 9344 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 9345 | } |
fb73857a | 9346 | |
9347 | /* output mangled stuff ... */ | |
9348 | if (c == '\0') | |
9349 | --q; | |
46fc3d4c | 9350 | eptr = p; |
9351 | elen = q - p; | |
fb73857a | 9352 | |
9353 | /* ... right here, because formatting flags should not apply */ | |
9354 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9355 | p = SvEND(sv); | |
4459522c | 9356 | Copy(eptr, p, elen, char); |
fb73857a | 9357 | p += elen; |
9358 | *p = '\0'; | |
fdac8c4b | 9359 | SvCUR_set(sv, p - SvPVX_const(sv)); |
d34f9d2e | 9360 | svix = osvix; |
fb73857a | 9361 | continue; /* not "break" */ |
46fc3d4c | 9362 | } |
9363 | ||
29359924 HS |
9364 | /* calculate width before utf8_upgrade changes it */ |
9365 | have = esignlen + zeros + elen; | |
9366 | ||
d2876be5 JH |
9367 | if (is_utf8 != has_utf8) { |
9368 | if (is_utf8) { | |
9369 | if (SvCUR(sv)) | |
9370 | sv_utf8_upgrade(sv); | |
9371 | } | |
9372 | else { | |
9373 | SV *nsv = sv_2mortal(newSVpvn(eptr, elen)); | |
9374 | sv_utf8_upgrade(nsv); | |
9375 | eptr = SvPVX(nsv); | |
9376 | elen = SvCUR(nsv); | |
9377 | } | |
9378 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9379 | p = SvEND(sv); | |
9380 | *p = '\0'; | |
9381 | } | |
18729d3e JH |
9382 | /* Use memchr() instead of strchr(), as eptr is not guaranteed */ |
9383 | /* to point to a null-terminated string. */ | |
9384 | if (left && ckWARN(WARN_PRINTF) && memchr(eptr, '\n', elen) && | |
67bae6b3 JH |
9385 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) |
9386 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), | |
9387 | "Newline in left-justified string for %sprintf", | |
9388 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
d2876be5 | 9389 | |
46fc3d4c | 9390 | need = (have > width ? have : width); |
9391 | gap = need - have; | |
9392 | ||
b22c7a20 | 9393 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 9394 | p = SvEND(sv); |
9395 | if (esignlen && fill == '0') { | |
eb160463 | 9396 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9397 | *p++ = esignbuf[i]; |
9398 | } | |
9399 | if (gap && !left) { | |
9400 | memset(p, fill, gap); | |
9401 | p += gap; | |
9402 | } | |
9403 | if (esignlen && fill != '0') { | |
eb160463 | 9404 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9405 | *p++ = esignbuf[i]; |
9406 | } | |
fc36a67e | 9407 | if (zeros) { |
9408 | for (i = zeros; i; i--) | |
9409 | *p++ = '0'; | |
9410 | } | |
46fc3d4c | 9411 | if (elen) { |
4459522c | 9412 | Copy(eptr, p, elen, char); |
46fc3d4c | 9413 | p += elen; |
9414 | } | |
9415 | if (gap && left) { | |
9416 | memset(p, ' ', gap); | |
9417 | p += gap; | |
9418 | } | |
b22c7a20 GS |
9419 | if (vectorize) { |
9420 | if (veclen) { | |
4459522c | 9421 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
9422 | p += dotstrlen; |
9423 | } | |
9424 | else | |
9425 | vectorize = FALSE; /* done iterating over vecstr */ | |
9426 | } | |
2cf2cfc6 A |
9427 | if (is_utf8) |
9428 | has_utf8 = TRUE; | |
9429 | if (has_utf8) | |
7e2040f0 | 9430 | SvUTF8_on(sv); |
46fc3d4c | 9431 | *p = '\0'; |
fdac8c4b | 9432 | SvCUR_set(sv, p - SvPVX_const(sv)); |
b22c7a20 GS |
9433 | if (vectorize) { |
9434 | esignlen = 0; | |
9435 | goto vector; | |
9436 | } | |
46fc3d4c | 9437 | } |
9438 | } | |
51371543 | 9439 | |
645c22ef DM |
9440 | /* ========================================================================= |
9441 | ||
9442 | =head1 Cloning an interpreter | |
9443 | ||
9444 | All the macros and functions in this section are for the private use of | |
9445 | the main function, perl_clone(). | |
9446 | ||
9447 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
9448 | During the course of a cloning, a hash table is used to map old addresses | |
9449 | to new addresses. The table is created and manipulated with the | |
9450 | ptr_table_* functions. | |
9451 | ||
9452 | =cut | |
9453 | ||
9454 | ============================================================================*/ | |
9455 | ||
9456 | ||
1d7c1841 GS |
9457 | #if defined(USE_ITHREADS) |
9458 | ||
4d1ff10f AB |
9459 | #if defined(USE_5005THREADS) |
9460 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
9461 | #endif |
9462 | ||
1d7c1841 GS |
9463 | #ifndef GpREFCNT_inc |
9464 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
9465 | #endif | |
9466 | ||
9467 | ||
d2d73c3e AB |
9468 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
9469 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
9470 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9471 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
9472 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9473 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
9474 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9475 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
9476 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9477 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
9478 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
9479 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
9480 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 9481 | |
d2d73c3e | 9482 | |
d2f185dc AMS |
9483 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
9484 | regcomp.c. AMS 20010712 */ | |
645c22ef | 9485 | |
1d7c1841 | 9486 | REGEXP * |
a8fc9800 | 9487 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 9488 | { |
d2f185dc AMS |
9489 | REGEXP *ret; |
9490 | int i, len, npar; | |
9491 | struct reg_substr_datum *s; | |
9492 | ||
9493 | if (!r) | |
9494 | return (REGEXP *)NULL; | |
9495 | ||
9496 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
9497 | return ret; | |
9498 | ||
9499 | len = r->offsets[0]; | |
9500 | npar = r->nparens+1; | |
9501 | ||
9502 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
9503 | Copy(r->program, ret->program, len+1, regnode); | |
9504 | ||
9505 | New(0, ret->startp, npar, I32); | |
9506 | Copy(r->startp, ret->startp, npar, I32); | |
9507 | New(0, ret->endp, npar, I32); | |
9508 | Copy(r->startp, ret->startp, npar, I32); | |
9509 | ||
d2f185dc AMS |
9510 | New(0, ret->substrs, 1, struct reg_substr_data); |
9511 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
9512 | s->min_offset = r->substrs->data[i].min_offset; | |
9513 | s->max_offset = r->substrs->data[i].max_offset; | |
9514 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 9515 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
9516 | } |
9517 | ||
70612e96 | 9518 | ret->regstclass = NULL; |
d2f185dc AMS |
9519 | if (r->data) { |
9520 | struct reg_data *d; | |
c05e0e2f | 9521 | const int count = r->data->count; |
d2f185dc AMS |
9522 | |
9523 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
9524 | char, struct reg_data); | |
9525 | New(0, d->what, count, U8); | |
9526 | ||
9527 | d->count = count; | |
9528 | for (i = 0; i < count; i++) { | |
9529 | d->what[i] = r->data->what[i]; | |
9530 | switch (d->what[i]) { | |
9531 | case 's': | |
9532 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
9533 | break; | |
9534 | case 'p': | |
9535 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
9536 | break; | |
9537 | case 'f': | |
9538 | /* This is cheating. */ | |
9539 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
9540 | StructCopy(r->data->data[i], d->data[i], | |
9541 | struct regnode_charclass_class); | |
70612e96 | 9542 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
9543 | break; |
9544 | case 'o': | |
33773810 AMS |
9545 | /* Compiled op trees are readonly, and can thus be |
9546 | shared without duplication. */ | |
46330ab1 | 9547 | OP_REFCNT_LOCK; |
9b978d73 | 9548 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
46330ab1 | 9549 | OP_REFCNT_UNLOCK; |
9b978d73 | 9550 | break; |
d2f185dc AMS |
9551 | case 'n': |
9552 | d->data[i] = r->data->data[i]; | |
9553 | break; | |
9554 | } | |
9555 | } | |
9556 | ||
9557 | ret->data = d; | |
9558 | } | |
9559 | else | |
9560 | ret->data = NULL; | |
9561 | ||
9562 | New(0, ret->offsets, 2*len+1, U32); | |
9563 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
9564 | ||
65b7047c | 9565 | ret->precomp = SAVEPVN(r->precomp, r->prelen); |
d2f185dc AMS |
9566 | ret->refcnt = r->refcnt; |
9567 | ret->minlen = r->minlen; | |
9568 | ret->prelen = r->prelen; | |
9569 | ret->nparens = r->nparens; | |
9570 | ret->lastparen = r->lastparen; | |
9571 | ret->lastcloseparen = r->lastcloseparen; | |
9572 | ret->reganch = r->reganch; | |
9573 | ||
70612e96 RG |
9574 | ret->sublen = r->sublen; |
9575 | ||
9576 | if (RX_MATCH_COPIED(ret)) | |
65b7047c | 9577 | ret->subbeg = SAVEPVN(r->subbeg, r->sublen); |
70612e96 RG |
9578 | else |
9579 | ret->subbeg = Nullch; | |
9580 | ||
d2f185dc AMS |
9581 | ptr_table_store(PL_ptr_table, r, ret); |
9582 | return ret; | |
1d7c1841 GS |
9583 | } |
9584 | ||
d2d73c3e | 9585 | /* duplicate a file handle */ |
645c22ef | 9586 | |
1d7c1841 | 9587 | PerlIO * |
a8fc9800 | 9588 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
9589 | { |
9590 | PerlIO *ret; | |
e2b56717 AL |
9591 | (void)type; |
9592 | ||
1d7c1841 GS |
9593 | if (!fp) |
9594 | return (PerlIO*)NULL; | |
9595 | ||
9596 | /* look for it in the table first */ | |
9597 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
9598 | if (ret) | |
9599 | return ret; | |
9600 | ||
9601 | /* create anew and remember what it is */ | |
ecdeb87c | 9602 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
9603 | ptr_table_store(PL_ptr_table, fp, ret); |
9604 | return ret; | |
9605 | } | |
9606 | ||
645c22ef DM |
9607 | /* duplicate a directory handle */ |
9608 | ||
1d7c1841 GS |
9609 | DIR * |
9610 | Perl_dirp_dup(pTHX_ DIR *dp) | |
9611 | { | |
9612 | if (!dp) | |
9613 | return (DIR*)NULL; | |
9614 | /* XXX TODO */ | |
9615 | return dp; | |
9616 | } | |
9617 | ||
ff276b08 | 9618 | /* duplicate a typeglob */ |
645c22ef | 9619 | |
1d7c1841 | 9620 | GP * |
a8fc9800 | 9621 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
9622 | { |
9623 | GP *ret; | |
9624 | if (!gp) | |
9625 | return (GP*)NULL; | |
9626 | /* look for it in the table first */ | |
9627 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
9628 | if (ret) | |
9629 | return ret; | |
9630 | ||
9631 | /* create anew and remember what it is */ | |
9632 | Newz(0, ret, 1, GP); | |
9633 | ptr_table_store(PL_ptr_table, gp, ret); | |
9634 | ||
9635 | /* clone */ | |
9636 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
9637 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
9638 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
9639 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
9640 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
9641 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
9642 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
9643 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
9644 | ret->gp_cvgen = gp->gp_cvgen; |
9645 | ret->gp_flags = gp->gp_flags; | |
9646 | ret->gp_line = gp->gp_line; | |
9647 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
9648 | return ret; | |
9649 | } | |
9650 | ||
645c22ef DM |
9651 | /* duplicate a chain of magic */ |
9652 | ||
1d7c1841 | 9653 | MAGIC * |
a8fc9800 | 9654 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 9655 | { |
cb359b41 JH |
9656 | MAGIC *mgprev = (MAGIC*)NULL; |
9657 | MAGIC *mgret; | |
1d7c1841 GS |
9658 | if (!mg) |
9659 | return (MAGIC*)NULL; | |
9660 | /* look for it in the table first */ | |
9661 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
9662 | if (mgret) | |
9663 | return mgret; | |
9664 | ||
9665 | for (; mg; mg = mg->mg_moremagic) { | |
9666 | MAGIC *nmg; | |
9667 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 9668 | if (mgprev) |
1d7c1841 | 9669 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
9670 | else |
9671 | mgret = nmg; | |
1d7c1841 GS |
9672 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
9673 | nmg->mg_private = mg->mg_private; | |
9674 | nmg->mg_type = mg->mg_type; | |
9675 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 9676 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 9677 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 9678 | } |
05bd4103 | 9679 | else if(mg->mg_type == PERL_MAGIC_backref) { |
1f49be52 | 9680 | const AV * const av = (AV*) mg->mg_obj; |
fdc9a813 AE |
9681 | SV **svp; |
9682 | I32 i; | |
1f49be52 | 9683 | (void)SvREFCNT_inc(nmg->mg_obj = (SV*)newAV()); |
fdc9a813 AE |
9684 | svp = AvARRAY(av); |
9685 | for (i = AvFILLp(av); i >= 0; i--) { | |
3a81978b | 9686 | if (!svp[i]) continue; |
fdc9a813 AE |
9687 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); |
9688 | } | |
05bd4103 | 9689 | } |
1d7c1841 GS |
9690 | else { |
9691 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
9692 | ? sv_dup_inc(mg->mg_obj, param) |
9693 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
9694 | } |
9695 | nmg->mg_len = mg->mg_len; | |
9696 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 9697 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 9698 | if (mg->mg_len > 0) { |
1d7c1841 | 9699 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
9700 | if (mg->mg_type == PERL_MAGIC_overload_table && |
9701 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
9702 | { | |
1d7c1841 GS |
9703 | AMT *amtp = (AMT*)mg->mg_ptr; |
9704 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
9705 | I32 i; | |
9706 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 9707 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
9708 | } |
9709 | } | |
9710 | } | |
9711 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 9712 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 9713 | } |
68795e93 NIS |
9714 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
9715 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
9716 | } | |
1d7c1841 GS |
9717 | mgprev = nmg; |
9718 | } | |
9719 | return mgret; | |
9720 | } | |
9721 | ||
645c22ef DM |
9722 | /* create a new pointer-mapping table */ |
9723 | ||
1d7c1841 GS |
9724 | PTR_TBL_t * |
9725 | Perl_ptr_table_new(pTHX) | |
9726 | { | |
9727 | PTR_TBL_t *tbl; | |
9728 | Newz(0, tbl, 1, PTR_TBL_t); | |
9729 | tbl->tbl_max = 511; | |
9730 | tbl->tbl_items = 0; | |
9731 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
9732 | return tbl; | |
9733 | } | |
9734 | ||
df34f778 NC |
9735 | #if (PTRSIZE == 8) |
9736 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 3) | |
9737 | #else | |
9738 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 2) | |
9739 | #endif | |
9740 | ||
72c9d3b6 NC |
9741 | |
9742 | ||
9743 | STATIC void | |
9744 | S_more_pte(pTHX) | |
9745 | { | |
69ddb3b9 NC |
9746 | struct ptr_tbl_ent* pte; |
9747 | struct ptr_tbl_ent* pteend; | |
72c9d3b6 NC |
9748 | XPV *ptr; |
9749 | New(54, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
9750 | ptr->xpv_pv = (char*)PL_pte_arenaroot; | |
9751 | PL_pte_arenaroot = ptr; | |
9752 | ||
9753 | pte = (struct ptr_tbl_ent*)ptr; | |
9754 | pteend = &pte[PERL_ARENA_SIZE / sizeof(struct ptr_tbl_ent) - 1]; | |
9755 | PL_pte_root = ++pte; | |
9756 | while (pte < pteend) { | |
9757 | pte->next = pte + 1; | |
9758 | pte++; | |
9759 | } | |
9760 | pte->next = 0; | |
9761 | } | |
9762 | ||
9763 | STATIC struct ptr_tbl_ent* | |
9764 | S_new_pte(pTHX) | |
9765 | { | |
9766 | struct ptr_tbl_ent* pte; | |
9767 | if (!PL_pte_root) | |
9768 | S_more_pte(aTHX); | |
9769 | pte = PL_pte_root; | |
9770 | PL_pte_root = pte->next; | |
9771 | return pte; | |
9772 | } | |
9773 | ||
9774 | STATIC void | |
9775 | S_del_pte(pTHX_ struct ptr_tbl_ent*p) | |
9776 | { | |
9777 | p->next = PL_pte_root; | |
9778 | PL_pte_root = p; | |
9779 | } | |
9780 | ||
645c22ef DM |
9781 | /* map an existing pointer using a table */ |
9782 | ||
1d7c1841 GS |
9783 | void * |
9784 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
9785 | { | |
9786 | PTR_TBL_ENT_t *tblent; | |
065cbbe5 | 9787 | const UV hash = PTR_TABLE_HASH(sv); |
1d7c1841 GS |
9788 | assert(tbl); |
9789 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
9790 | for (; tblent; tblent = tblent->next) { | |
9791 | if (tblent->oldval == sv) | |
9792 | return tblent->newval; | |
9793 | } | |
9794 | return (void*)NULL; | |
9795 | } | |
9796 | ||
645c22ef DM |
9797 | /* add a new entry to a pointer-mapping table */ |
9798 | ||
1d7c1841 GS |
9799 | void |
9800 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
9801 | { | |
9802 | PTR_TBL_ENT_t *tblent, **otblent; | |
9803 | /* XXX this may be pessimal on platforms where pointers aren't good | |
9804 | * hash values e.g. if they grow faster in the most significant | |
9805 | * bits */ | |
065cbbe5 | 9806 | const UV hash = PTR_TABLE_HASH(oldv); |
df34f778 | 9807 | bool empty = 1; |
1d7c1841 GS |
9808 | |
9809 | assert(tbl); | |
9810 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
df34f778 | 9811 | for (tblent = *otblent; tblent; empty=0, tblent = tblent->next) { |
1d7c1841 GS |
9812 | if (tblent->oldval == oldv) { |
9813 | tblent->newval = newv; | |
1d7c1841 GS |
9814 | return; |
9815 | } | |
9816 | } | |
72c9d3b6 | 9817 | tblent = S_new_pte(aTHX); |
1d7c1841 GS |
9818 | tblent->oldval = oldv; |
9819 | tblent->newval = newv; | |
9820 | tblent->next = *otblent; | |
9821 | *otblent = tblent; | |
9822 | tbl->tbl_items++; | |
df34f778 | 9823 | if (!empty && tbl->tbl_items > tbl->tbl_max) |
1d7c1841 GS |
9824 | ptr_table_split(tbl); |
9825 | } | |
9826 | ||
645c22ef DM |
9827 | /* double the hash bucket size of an existing ptr table */ |
9828 | ||
1d7c1841 GS |
9829 | void |
9830 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
9831 | { | |
9832 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
065cbbe5 | 9833 | const UV oldsize = tbl->tbl_max + 1; |
1d7c1841 GS |
9834 | UV newsize = oldsize * 2; |
9835 | UV i; | |
9836 | ||
9837 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
9838 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
9839 | tbl->tbl_max = --newsize; | |
9840 | tbl->tbl_ary = ary; | |
9841 | for (i=0; i < oldsize; i++, ary++) { | |
9842 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
9843 | if (!*ary) | |
9844 | continue; | |
9845 | curentp = ary + oldsize; | |
9846 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
df34f778 | 9847 | if ((newsize & PTR_TABLE_HASH(ent->oldval)) != i) { |
1d7c1841 GS |
9848 | *entp = ent->next; |
9849 | ent->next = *curentp; | |
9850 | *curentp = ent; | |
9851 | continue; | |
9852 | } | |
9853 | else | |
9854 | entp = &ent->next; | |
9855 | } | |
9856 | } | |
9857 | } | |
9858 | ||
645c22ef DM |
9859 | /* remove all the entries from a ptr table */ |
9860 | ||
a0739874 DM |
9861 | void |
9862 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
9863 | { | |
9864 | register PTR_TBL_ENT_t **array; | |
9865 | register PTR_TBL_ENT_t *entry; | |
a0739874 DM |
9866 | UV riter = 0; |
9867 | UV max; | |
9868 | ||
9869 | if (!tbl || !tbl->tbl_items) { | |
9870 | return; | |
9871 | } | |
9872 | ||
9873 | array = tbl->tbl_ary; | |
9874 | entry = array[0]; | |
9875 | max = tbl->tbl_max; | |
9876 | ||
9877 | for (;;) { | |
9878 | if (entry) { | |
065cbbe5 | 9879 | PTR_TBL_ENT_t *oentry = entry; |
a0739874 | 9880 | entry = entry->next; |
72c9d3b6 | 9881 | S_del_pte(aTHX_ oentry); |
a0739874 DM |
9882 | } |
9883 | if (!entry) { | |
9884 | if (++riter > max) { | |
9885 | break; | |
9886 | } | |
9887 | entry = array[riter]; | |
9888 | } | |
9889 | } | |
9890 | ||
9891 | tbl->tbl_items = 0; | |
9892 | } | |
9893 | ||
645c22ef DM |
9894 | /* clear and free a ptr table */ |
9895 | ||
a0739874 DM |
9896 | void |
9897 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
9898 | { | |
9899 | if (!tbl) { | |
9900 | return; | |
9901 | } | |
9902 | ptr_table_clear(tbl); | |
9903 | Safefree(tbl->tbl_ary); | |
9904 | Safefree(tbl); | |
9905 | } | |
9906 | ||
1d7c1841 GS |
9907 | #ifdef DEBUGGING |
9908 | char *PL_watch_pvx; | |
9909 | #endif | |
9910 | ||
645c22ef DM |
9911 | /* attempt to make everything in the typeglob readonly */ |
9912 | ||
5bd07a3d | 9913 | STATIC SV * |
59b40662 | 9914 | S_gv_share(pTHX_ SV *sstr, CLONE_PARAMS *param) |
5bd07a3d DM |
9915 | { |
9916 | GV *gv = (GV*)sstr; | |
59b40662 | 9917 | SV *sv = ¶m->proto_perl->Isv_no; /* just need SvREADONLY-ness */ |
5bd07a3d DM |
9918 | |
9919 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 9920 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
9921 | } |
9922 | else if (!GvCV(gv)) { | |
9923 | GvCV(gv) = (CV*)sv; | |
9924 | } | |
9925 | else { | |
9926 | /* CvPADLISTs cannot be shared */ | |
37e20706 | 9927 | if (!SvREADONLY(GvCV(gv)) && !CvXSUB(GvCV(gv))) { |
7fb37951 | 9928 | GvUNIQUE_off(gv); |
5bd07a3d DM |
9929 | } |
9930 | } | |
9931 | ||
7fb37951 | 9932 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
9933 | #if 0 |
9934 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
26ab6a78 | 9935 | HvNAME_get(GvSTASH(gv)), GvNAME(gv)); |
5bd07a3d DM |
9936 | #endif |
9937 | return Nullsv; | |
9938 | } | |
9939 | ||
4411f3b6 | 9940 | /* |
5bd07a3d DM |
9941 | * write attempts will die with |
9942 | * "Modification of a read-only value attempted" | |
9943 | */ | |
9944 | if (!GvSV(gv)) { | |
9945 | GvSV(gv) = sv; | |
9946 | } | |
9947 | else { | |
9948 | SvREADONLY_on(GvSV(gv)); | |
9949 | } | |
9950 | ||
9951 | if (!GvAV(gv)) { | |
9952 | GvAV(gv) = (AV*)sv; | |
9953 | } | |
9954 | else { | |
9955 | SvREADONLY_on(GvAV(gv)); | |
9956 | } | |
9957 | ||
9958 | if (!GvHV(gv)) { | |
9959 | GvHV(gv) = (HV*)sv; | |
9960 | } | |
9961 | else { | |
fea227c9 | 9962 | SvREADONLY_on(GvHV(gv)); |
5bd07a3d DM |
9963 | } |
9964 | ||
9965 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
9966 | } | |
9967 | ||
645c22ef DM |
9968 | /* duplicate an SV of any type (including AV, HV etc) */ |
9969 | ||
83841fad NIS |
9970 | void |
9971 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
9972 | { | |
9973 | if (SvROK(sstr)) { | |
a8dc4fe8 SP |
9974 | SvRV_set(dstr, SvWEAKREF(sstr) |
9975 | ? sv_dup(SvRV(sstr), param) | |
9976 | : sv_dup_inc(SvRV(sstr), param)); | |
0da6cfda | 9977 | |
83841fad | 9978 | } |
fdac8c4b | 9979 | else if (SvPVX_const(sstr)) { |
83841fad NIS |
9980 | /* Has something there */ |
9981 | if (SvLEN(sstr)) { | |
68795e93 | 9982 | /* Normal PV - clone whole allocated space */ |
fdac8c4b | 9983 | SvPV_set(dstr, SAVEPVN(SvPVX_const(sstr), SvLEN(sstr)-1)); |
68795e93 | 9984 | } |
83841fad NIS |
9985 | else { |
9986 | /* Special case - not normally malloced for some reason */ | |
9987 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
9988 | /* A "shared" PV - clone it as unshared string */ | |
3e5ba712 | 9989 | if(SvPADTMP(sstr)) { |
efb84706 JH |
9990 | /* However, some of them live in the pad |
9991 | and they should not have these flags | |
9992 | turned off */ | |
3e5ba712 | 9993 | |
fdac8c4b | 9994 | SvPV_set(dstr, sharepvn(SvPVX_const(sstr), SvCUR(sstr), |
0da6cfda SP |
9995 | SvUVX(sstr))); |
9996 | SvUV_set(dstr, SvUVX(sstr)); | |
3e5ba712 JH |
9997 | } else { |
9998 | ||
fdac8c4b | 9999 | SvPV_set(dstr, SAVEPVN(SvPVX_const(sstr), SvCUR(sstr))); |
3e5ba712 JH |
10000 | SvFAKE_off(dstr); |
10001 | SvREADONLY_off(dstr); | |
efb84706 | 10002 | } |
83841fad NIS |
10003 | } |
10004 | else { | |
10005 | /* Some other special case - random pointer */ | |
0da6cfda | 10006 | SvPV_set(dstr, SvPVX(sstr)); |
83841fad NIS |
10007 | } |
10008 | } | |
10009 | } | |
10010 | else { | |
10011 | /* Copy the Null */ | |
0da6cfda | 10012 | if (SvTYPE(dstr) == SVt_RV) |
a8dc4fe8 | 10013 | SvRV_set(dstr, NULL); |
0da6cfda SP |
10014 | else |
10015 | SvPV_set(dstr, 0); | |
83841fad NIS |
10016 | } |
10017 | } | |
10018 | ||
1d7c1841 | 10019 | SV * |
a8fc9800 | 10020 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 10021 | { |
1d7c1841 GS |
10022 | SV *dstr; |
10023 | ||
10024 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
10025 | return Nullsv; | |
10026 | /* look for it in the table first */ | |
10027 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
10028 | if (dstr) | |
10029 | return dstr; | |
10030 | ||
457d3ae8 JH |
10031 | if(param->flags & CLONEf_JOIN_IN) { |
10032 | /** We are joining here so we don't want do clone | |
10033 | something that is bad **/ | |
26ab6a78 | 10034 | const char *hvname; |
457d3ae8 JH |
10035 | |
10036 | if(SvTYPE(sstr) == SVt_PVHV && | |
26ab6a78 | 10037 | (hvname = HvNAME_get(sstr))) { |
457d3ae8 | 10038 | /** don't clone stashes if they already exist **/ |
26ab6a78 | 10039 | HV* old_stash = gv_stashpv(hvname,0); |
457d3ae8 JH |
10040 | return (SV*) old_stash; |
10041 | } | |
10042 | } | |
10043 | ||
1d7c1841 GS |
10044 | /* create anew and remember what it is */ |
10045 | new_SV(dstr); | |
10046 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
10047 | ||
10048 | /* clone */ | |
10049 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
10050 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
10051 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
10052 | ||
10053 | #ifdef DEBUGGING | |
fdac8c4b | 10054 | if (SvANY(sstr) && PL_watch_pvx && SvPVX_const(sstr) == PL_watch_pvx) |
1d7c1841 | 10055 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", |
fdac8c4b | 10056 | PL_watch_pvx, SvPVX_const(sstr)); |
1d7c1841 GS |
10057 | #endif |
10058 | ||
c7df1ae8 NC |
10059 | /* don't clone objects whose class has asked us not to */ |
10060 | if (SvOBJECT(sstr) && ! (SvFLAGS(SvSTASH(sstr)) & SVphv_CLONEABLE)) { | |
10061 | SvFLAGS(dstr) &= ~SVTYPEMASK; | |
10062 | SvOBJECT_off(dstr); | |
10063 | return dstr; | |
10064 | } | |
10065 | ||
1d7c1841 GS |
10066 | switch (SvTYPE(sstr)) { |
10067 | case SVt_NULL: | |
10068 | SvANY(dstr) = NULL; | |
10069 | break; | |
10070 | case SVt_IV: | |
10071 | SvANY(dstr) = new_XIV(); | |
0da6cfda | 10072 | SvIV_set(dstr, SvIVX(sstr)); |
1d7c1841 GS |
10073 | break; |
10074 | case SVt_NV: | |
10075 | SvANY(dstr) = new_XNV(); | |
0da6cfda | 10076 | SvNV_set(dstr, SvNVX(sstr)); |
1d7c1841 GS |
10077 | break; |
10078 | case SVt_RV: | |
10079 | SvANY(dstr) = new_XRV(); | |
83841fad | 10080 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10081 | break; |
10082 | case SVt_PV: | |
10083 | SvANY(dstr) = new_XPV(); | |
a8dc4fe8 SP |
10084 | SvCUR_set(dstr, SvCUR(sstr)); |
10085 | SvLEN_set(dstr, SvLEN(sstr)); | |
83841fad | 10086 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10087 | break; |
10088 | case SVt_PVIV: | |
10089 | SvANY(dstr) = new_XPVIV(); | |
a8dc4fe8 SP |
10090 | SvCUR_set(dstr, SvCUR(sstr)); |
10091 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda | 10092 | SvIV_set(dstr, SvIVX(sstr)); |
83841fad | 10093 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10094 | break; |
10095 | case SVt_PVNV: | |
10096 | SvANY(dstr) = new_XPVNV(); | |
a8dc4fe8 SP |
10097 | SvCUR_set(dstr, SvCUR(sstr)); |
10098 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10099 | SvIV_set(dstr, SvIVX(sstr)); |
10100 | SvNV_set(dstr, SvNVX(sstr)); | |
83841fad | 10101 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10102 | break; |
10103 | case SVt_PVMG: | |
10104 | SvANY(dstr) = new_XPVMG(); | |
a8dc4fe8 SP |
10105 | SvCUR_set(dstr, SvCUR(sstr)); |
10106 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10107 | SvIV_set(dstr, SvIVX(sstr)); |
10108 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10109 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10110 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10111 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10112 | break; |
10113 | case SVt_PVBM: | |
10114 | SvANY(dstr) = new_XPVBM(); | |
a8dc4fe8 SP |
10115 | SvCUR_set(dstr, SvCUR(sstr)); |
10116 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10117 | SvIV_set(dstr, SvIVX(sstr)); |
10118 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10119 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10120 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10121 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10122 | BmRARE(dstr) = BmRARE(sstr); |
10123 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
10124 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
10125 | break; | |
10126 | case SVt_PVLV: | |
10127 | SvANY(dstr) = new_XPVLV(); | |
a8dc4fe8 SP |
10128 | SvCUR_set(dstr, SvCUR(sstr)); |
10129 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10130 | SvIV_set(dstr, SvIVX(sstr)); |
10131 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10132 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10133 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10134 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10135 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
10136 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
73c86719 JH |
10137 | if (LvTYPE(sstr) == 't') /* for tie: unrefcnted fake (SV**) */ |
10138 | LvTARG(dstr) = dstr; | |
10139 | else if (LvTYPE(sstr) == 'T') /* for tie: fake HE */ | |
10140 | LvTARG(dstr) = (SV*)he_dup((HE*)LvTARG(sstr), 0, param); | |
10141 | else | |
10142 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); | |
1d7c1841 GS |
10143 | LvTYPE(dstr) = LvTYPE(sstr); |
10144 | break; | |
10145 | case SVt_PVGV: | |
7fb37951 | 10146 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d | 10147 | SV *share; |
59b40662 | 10148 | if ((share = gv_share(sstr, param))) { |
5bd07a3d DM |
10149 | del_SV(dstr); |
10150 | dstr = share; | |
37e20706 | 10151 | ptr_table_store(PL_ptr_table, sstr, dstr); |
5bd07a3d DM |
10152 | #if 0 |
10153 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
26ab6a78 | 10154 | HvNAME_get(GvSTASH(share)), GvNAME(share)); |
5bd07a3d DM |
10155 | #endif |
10156 | break; | |
10157 | } | |
10158 | } | |
1d7c1841 | 10159 | SvANY(dstr) = new_XPVGV(); |
a8dc4fe8 SP |
10160 | SvCUR_set(dstr, SvCUR(sstr)); |
10161 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10162 | SvIV_set(dstr, SvIVX(sstr)); |
10163 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10164 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10165 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10166 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10167 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
10168 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 10169 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 10170 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 10171 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
10172 | (void)GpREFCNT_inc(GvGP(dstr)); |
10173 | break; | |
10174 | case SVt_PVIO: | |
10175 | SvANY(dstr) = new_XPVIO(); | |
a8dc4fe8 SP |
10176 | SvCUR_set(dstr, SvCUR(sstr)); |
10177 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10178 | SvIV_set(dstr, SvIVX(sstr)); |
10179 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10180 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10181 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10182 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 10183 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
10184 | if (IoOFP(sstr) == IoIFP(sstr)) |
10185 | IoOFP(dstr) = IoIFP(dstr); | |
10186 | else | |
a8fc9800 | 10187 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
10188 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
10189 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
10190 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
10191 | else | |
10192 | IoDIRP(dstr) = IoDIRP(sstr); | |
10193 | IoLINES(dstr) = IoLINES(sstr); | |
10194 | IoPAGE(dstr) = IoPAGE(sstr); | |
10195 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
10196 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
4376702e JH |
10197 | if(IoFLAGS(sstr) & IOf_FAKE_DIRP) { |
10198 | /* I have no idea why fake dirp (rsfps) | |
10199 | should be treaded differently but otherwise | |
10200 | we end up with leaks -- sky*/ | |
10201 | IoTOP_GV(dstr) = gv_dup_inc(IoTOP_GV(sstr), param); | |
10202 | IoFMT_GV(dstr) = gv_dup_inc(IoFMT_GV(sstr), param); | |
10203 | IoBOTTOM_GV(dstr) = gv_dup_inc(IoBOTTOM_GV(sstr), param); | |
10204 | } else { | |
10205 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); | |
10206 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); | |
10207 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); | |
10208 | } | |
1d7c1841 | 10209 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); |
1d7c1841 | 10210 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
1d7c1841 | 10211 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
1d7c1841 GS |
10212 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
10213 | IoTYPE(dstr) = IoTYPE(sstr); | |
10214 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
10215 | break; | |
10216 | case SVt_PVAV: | |
10217 | SvANY(dstr) = new_XPVAV(); | |
a8dc4fe8 SP |
10218 | SvCUR_set(dstr, SvCUR(sstr)); |
10219 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10220 | SvIV_set(dstr, SvIVX(sstr)); |
10221 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10222 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10223 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
d2d73c3e | 10224 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); |
1d7c1841 GS |
10225 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
10226 | if (AvARRAY((AV*)sstr)) { | |
10227 | SV **dst_ary, **src_ary; | |
10228 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
10229 | ||
10230 | src_ary = AvARRAY((AV*)sstr); | |
10231 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
10232 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
0da6cfda | 10233 | SvPV_set(dstr, (char*)dst_ary); |
1d7c1841 GS |
10234 | AvALLOC((AV*)dstr) = dst_ary; |
10235 | if (AvREAL((AV*)sstr)) { | |
10236 | while (items-- > 0) | |
d2d73c3e | 10237 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
10238 | } |
10239 | else { | |
10240 | while (items-- > 0) | |
d2d73c3e | 10241 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
10242 | } |
10243 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
10244 | while (items-- > 0) { | |
10245 | *dst_ary++ = &PL_sv_undef; | |
10246 | } | |
10247 | } | |
10248 | else { | |
0da6cfda | 10249 | SvPV_set(dstr, Nullch); |
1d7c1841 GS |
10250 | AvALLOC((AV*)dstr) = (SV**)NULL; |
10251 | } | |
10252 | break; | |
10253 | case SVt_PVHV: | |
10254 | SvANY(dstr) = new_XPVHV(); | |
a8dc4fe8 SP |
10255 | SvCUR_set(dstr, SvCUR(sstr)); |
10256 | SvLEN_set(dstr, SvLEN(sstr)); | |
1a21fcb5 | 10257 | HvTOTALKEYS(dstr) = HvTOTALKEYS(sstr); |
0da6cfda | 10258 | SvNV_set(dstr, SvNVX(sstr)); |
a8dc4fe8 SP |
10259 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10260 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
26ab6a78 | 10261 | HvRITER_set((HV*)dstr, HvRITER_get((HV*)sstr)); |
1d7c1841 | 10262 | if (HvARRAY((HV*)sstr)) { |
4d4670a8 | 10263 | bool sharekeys = !!HvSHAREKEYS(sstr); |
1d7c1841 GS |
10264 | STRLEN i = 0; |
10265 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
10266 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
4d4670a8 | 10267 | New(0, dxhv->xhv_array, |
1d7c1841 GS |
10268 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); |
10269 | while (i <= sxhv->xhv_max) { | |
4d4670a8 AL |
10270 | HE *source = HvARRAY(sstr)[i]; |
10271 | HvARRAY(dstr)[i] | |
10272 | = source ? he_dup(source, sharekeys, param) : 0; | |
1d7c1841 GS |
10273 | ++i; |
10274 | } | |
eb160463 GS |
10275 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, |
10276 | (bool)!!HvSHAREKEYS(sstr), param); | |
1d7c1841 GS |
10277 | } |
10278 | else { | |
0da6cfda | 10279 | SvPV_set(dstr, Nullch); |
26ab6a78 | 10280 | HvEITER_set((HV*)dstr, (HE*)NULL); |
1d7c1841 GS |
10281 | } |
10282 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
10283 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
26ab6a78 | 10284 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 10285 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 10286 | av_push(param->stashes, dstr); |
1d7c1841 GS |
10287 | break; |
10288 | case SVt_PVFM: | |
10289 | SvANY(dstr) = new_XPVFM(); | |
10290 | FmLINES(dstr) = FmLINES(sstr); | |
10291 | goto dup_pvcv; | |
10292 | /* NOTREACHED */ | |
10293 | case SVt_PVCV: | |
10294 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 10295 | dup_pvcv: |
a8dc4fe8 SP |
10296 | SvCUR_set(dstr, SvCUR(sstr)); |
10297 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10298 | SvIV_set(dstr, SvIVX(sstr)); |
10299 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10300 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10301 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10302 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 10303 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 | 10304 | CvSTART(dstr) = CvSTART(sstr); |
46330ab1 | 10305 | OP_REFCNT_LOCK; |
1d7c1841 | 10306 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); |
46330ab1 | 10307 | OP_REFCNT_UNLOCK; |
1d7c1841 GS |
10308 | CvXSUB(dstr) = CvXSUB(sstr); |
10309 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
10310 | if (CvCONST(sstr)) { |
10311 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
10312 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
10313 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
10314 | } | |
a23cf089 JD |
10315 | /* don't dup if copying back - CvGV isn't refcounted, so the |
10316 | * duped GV may never be freed. A bit of a hack! DAPM */ | |
10317 | CvGV(dstr) = (param->flags & CLONEf_JOIN_IN) ? | |
10318 | Nullgv : gv_dup(CvGV(sstr), param) ; | |
d2d73c3e AB |
10319 | if (param->flags & CLONEf_COPY_STACKS) { |
10320 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
10321 | } else { | |
10322 | CvDEPTH(dstr) = 0; | |
10323 | } | |
9755d405 | 10324 | PAD_DUP(CvPADLIST(dstr), CvPADLIST(sstr), param); |
d7afa7f5 JH |
10325 | CvOUTSIDE_SEQ(dstr) = CvOUTSIDE_SEQ(sstr); |
10326 | CvOUTSIDE(dstr) = | |
10327 | CvWEAKOUTSIDE(sstr) | |
10328 | ? cv_dup( CvOUTSIDE(sstr), param) | |
10329 | : cv_dup_inc(CvOUTSIDE(sstr), param); | |
1d7c1841 | 10330 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 10331 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
10332 | break; |
10333 | default: | |
c803eecc | 10334 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", (IV)SvTYPE(sstr)); |
1d7c1841 GS |
10335 | break; |
10336 | } | |
10337 | ||
10338 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
10339 | ++PL_sv_objcount; | |
10340 | ||
10341 | return dstr; | |
d2d73c3e | 10342 | } |
1d7c1841 | 10343 | |
645c22ef DM |
10344 | /* duplicate a context */ |
10345 | ||
1d7c1841 | 10346 | PERL_CONTEXT * |
a8fc9800 | 10347 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
10348 | { |
10349 | PERL_CONTEXT *ncxs; | |
10350 | ||
10351 | if (!cxs) | |
10352 | return (PERL_CONTEXT*)NULL; | |
10353 | ||
10354 | /* look for it in the table first */ | |
10355 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
10356 | if (ncxs) | |
10357 | return ncxs; | |
10358 | ||
10359 | /* create anew and remember what it is */ | |
10360 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
10361 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
10362 | ||
10363 | while (ix >= 0) { | |
10364 | PERL_CONTEXT *cx = &cxs[ix]; | |
10365 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
10366 | ncx->cx_type = cx->cx_type; | |
10367 | if (CxTYPE(cx) == CXt_SUBST) { | |
10368 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
10369 | } | |
10370 | else { | |
10371 | ncx->blk_oldsp = cx->blk_oldsp; | |
10372 | ncx->blk_oldcop = cx->blk_oldcop; | |
10373 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
10374 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
10375 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
10376 | ncx->blk_oldpm = cx->blk_oldpm; | |
10377 | ncx->blk_gimme = cx->blk_gimme; | |
10378 | switch (CxTYPE(cx)) { | |
10379 | case CXt_SUB: | |
10380 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
10381 | ? cv_dup_inc(cx->blk_sub.cv, param) |
10382 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 10383 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 10384 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 10385 | : Nullav); |
d2d73c3e | 10386 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
10387 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
10388 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
10389 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
10390 | break; | |
10391 | case CXt_EVAL: | |
10392 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
10393 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 10394 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 10395 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 10396 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
10397 | break; |
10398 | case CXt_LOOP: | |
10399 | ncx->blk_loop.label = cx->blk_loop.label; | |
10400 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
10401 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
10402 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
10403 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
10404 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
10405 | ? cx->blk_loop.iterdata | |
d2d73c3e | 10406 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
d7afa7f5 JH |
10407 | ncx->blk_loop.oldcomppad |
10408 | = (PAD*)ptr_table_fetch(PL_ptr_table, | |
10409 | cx->blk_loop.oldcomppad); | |
d2d73c3e AB |
10410 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
10411 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
10412 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
10413 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
10414 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
10415 | break; | |
10416 | case CXt_FORMAT: | |
d2d73c3e AB |
10417 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
10418 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
10419 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
10420 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
10421 | break; | |
10422 | case CXt_BLOCK: | |
10423 | case CXt_NULL: | |
10424 | break; | |
10425 | } | |
10426 | } | |
10427 | --ix; | |
10428 | } | |
10429 | return ncxs; | |
10430 | } | |
10431 | ||
645c22ef DM |
10432 | /* duplicate a stack info structure */ |
10433 | ||
1d7c1841 | 10434 | PERL_SI * |
a8fc9800 | 10435 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
10436 | { |
10437 | PERL_SI *nsi; | |
10438 | ||
10439 | if (!si) | |
10440 | return (PERL_SI*)NULL; | |
10441 | ||
10442 | /* look for it in the table first */ | |
10443 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
10444 | if (nsi) | |
10445 | return nsi; | |
10446 | ||
10447 | /* create anew and remember what it is */ | |
10448 | Newz(56, nsi, 1, PERL_SI); | |
10449 | ptr_table_store(PL_ptr_table, si, nsi); | |
10450 | ||
d2d73c3e | 10451 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
10452 | nsi->si_cxix = si->si_cxix; |
10453 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 10454 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 10455 | nsi->si_type = si->si_type; |
d2d73c3e AB |
10456 | nsi->si_prev = si_dup(si->si_prev, param); |
10457 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
10458 | nsi->si_markoff = si->si_markoff; |
10459 | ||
10460 | return nsi; | |
10461 | } | |
10462 | ||
10463 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
10464 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
10465 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
10466 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
10467 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
10468 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
21637969 YST |
10469 | #define POPBOOL(ss,ix) ((ss)[--(ix)].any_bool) |
10470 | #define TOPBOOL(ss,ix) ((ss)[ix].any_bool) | |
1d7c1841 GS |
10471 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) |
10472 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
10473 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
10474 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
10475 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
10476 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
10477 | ||
10478 | /* XXXXX todo */ | |
10479 | #define pv_dup_inc(p) SAVEPV(p) | |
10480 | #define pv_dup(p) SAVEPV(p) | |
10481 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
10482 | ||
645c22ef DM |
10483 | /* map any object to the new equivent - either something in the |
10484 | * ptr table, or something in the interpreter structure | |
10485 | */ | |
10486 | ||
1d7c1841 GS |
10487 | void * |
10488 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
10489 | { | |
10490 | void *ret; | |
10491 | ||
10492 | if (!v) | |
10493 | return (void*)NULL; | |
10494 | ||
10495 | /* look for it in the table first */ | |
10496 | ret = ptr_table_fetch(PL_ptr_table, v); | |
10497 | if (ret) | |
10498 | return ret; | |
10499 | ||
10500 | /* see if it is part of the interpreter structure */ | |
10501 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 10502 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 10503 | else { |
1d7c1841 | 10504 | ret = v; |
05ec9bb3 | 10505 | } |
1d7c1841 GS |
10506 | |
10507 | return ret; | |
10508 | } | |
10509 | ||
645c22ef DM |
10510 | /* duplicate the save stack */ |
10511 | ||
1d7c1841 | 10512 | ANY * |
a8fc9800 | 10513 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
10514 | { |
10515 | ANY *ss = proto_perl->Tsavestack; | |
10516 | I32 ix = proto_perl->Tsavestack_ix; | |
10517 | I32 max = proto_perl->Tsavestack_max; | |
10518 | ANY *nss; | |
10519 | SV *sv; | |
10520 | GV *gv; | |
10521 | AV *av; | |
10522 | HV *hv; | |
10523 | void* ptr; | |
10524 | int intval; | |
10525 | long longval; | |
10526 | GP *gp; | |
10527 | IV iv; | |
10528 | I32 i; | |
c4e33207 | 10529 | char *c = NULL; |
1d7c1841 | 10530 | void (*dptr) (void*); |
acfe0abc | 10531 | void (*dxptr) (pTHX_ void*); |
e977893f | 10532 | OP *o; |
1d7c1841 GS |
10533 | |
10534 | Newz(54, nss, max, ANY); | |
10535 | ||
10536 | while (ix > 0) { | |
10537 | i = POPINT(ss,ix); | |
10538 | TOPINT(nss,ix) = i; | |
10539 | switch (i) { | |
10540 | case SAVEt_ITEM: /* normal string */ | |
10541 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10542 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10543 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10544 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10545 | break; |
10546 | case SAVEt_SV: /* scalar reference */ | |
10547 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10548 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10549 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10550 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 10551 | break; |
f4dd75d9 GS |
10552 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
10553 | c = (char*)POPPTR(ss,ix); | |
10554 | TOPPTR(nss,ix) = pv_dup(c); | |
10555 | ptr = POPPTR(ss,ix); | |
10556 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10557 | break; | |
05ec9bb3 NIS |
10558 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
10559 | c = (char*)POPPTR(ss,ix); | |
10560 | TOPPTR(nss,ix) = savesharedpv(c); | |
10561 | ptr = POPPTR(ss,ix); | |
10562 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10563 | break; | |
1d7c1841 GS |
10564 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
10565 | case SAVEt_SVREF: /* scalar reference */ | |
10566 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10567 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10568 | ptr = POPPTR(ss,ix); |
10569 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
10570 | break; | |
10571 | case SAVEt_AV: /* array reference */ | |
10572 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10573 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 10574 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10575 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10576 | break; |
10577 | case SAVEt_HV: /* hash reference */ | |
10578 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10579 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 10580 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10581 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10582 | break; |
10583 | case SAVEt_INT: /* int reference */ | |
10584 | ptr = POPPTR(ss,ix); | |
10585 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10586 | intval = (int)POPINT(ss,ix); | |
10587 | TOPINT(nss,ix) = intval; | |
10588 | break; | |
10589 | case SAVEt_LONG: /* long reference */ | |
10590 | ptr = POPPTR(ss,ix); | |
10591 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10592 | longval = (long)POPLONG(ss,ix); | |
10593 | TOPLONG(nss,ix) = longval; | |
10594 | break; | |
10595 | case SAVEt_I32: /* I32 reference */ | |
10596 | case SAVEt_I16: /* I16 reference */ | |
10597 | case SAVEt_I8: /* I8 reference */ | |
10598 | ptr = POPPTR(ss,ix); | |
10599 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10600 | i = POPINT(ss,ix); | |
10601 | TOPINT(nss,ix) = i; | |
10602 | break; | |
10603 | case SAVEt_IV: /* IV reference */ | |
10604 | ptr = POPPTR(ss,ix); | |
10605 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10606 | iv = POPIV(ss,ix); | |
10607 | TOPIV(nss,ix) = iv; | |
10608 | break; | |
10609 | case SAVEt_SPTR: /* SV* reference */ | |
10610 | ptr = POPPTR(ss,ix); | |
10611 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10612 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10613 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
10614 | break; |
10615 | case SAVEt_VPTR: /* random* reference */ | |
10616 | ptr = POPPTR(ss,ix); | |
10617 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10618 | ptr = POPPTR(ss,ix); | |
10619 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10620 | break; | |
10621 | case SAVEt_PPTR: /* char* reference */ | |
10622 | ptr = POPPTR(ss,ix); | |
10623 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10624 | c = (char*)POPPTR(ss,ix); | |
10625 | TOPPTR(nss,ix) = pv_dup(c); | |
10626 | break; | |
10627 | case SAVEt_HPTR: /* HV* reference */ | |
10628 | ptr = POPPTR(ss,ix); | |
10629 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10630 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10631 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
10632 | break; |
10633 | case SAVEt_APTR: /* AV* reference */ | |
10634 | ptr = POPPTR(ss,ix); | |
10635 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10636 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10637 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
10638 | break; |
10639 | case SAVEt_NSTAB: | |
10640 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 10641 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10642 | break; |
10643 | case SAVEt_GP: /* scalar reference */ | |
10644 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 10645 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
10646 | (void)GpREFCNT_inc(gp); |
10647 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 10648 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
10649 | c = (char*)POPPTR(ss,ix); |
10650 | TOPPTR(nss,ix) = pv_dup(c); | |
10651 | iv = POPIV(ss,ix); | |
10652 | TOPIV(nss,ix) = iv; | |
10653 | iv = POPIV(ss,ix); | |
10654 | TOPIV(nss,ix) = iv; | |
10655 | break; | |
10656 | case SAVEt_FREESV: | |
26d9b02f | 10657 | case SAVEt_MORTALIZESV: |
1d7c1841 | 10658 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10659 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10660 | break; |
10661 | case SAVEt_FREEOP: | |
10662 | ptr = POPPTR(ss,ix); | |
10663 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
10664 | /* these are assumed to be refcounted properly */ | |
10665 | switch (((OP*)ptr)->op_type) { | |
10666 | case OP_LEAVESUB: | |
10667 | case OP_LEAVESUBLV: | |
10668 | case OP_LEAVEEVAL: | |
10669 | case OP_LEAVE: | |
10670 | case OP_SCOPE: | |
10671 | case OP_LEAVEWRITE: | |
e977893f GS |
10672 | TOPPTR(nss,ix) = ptr; |
10673 | o = (OP*)ptr; | |
10674 | OpREFCNT_inc(o); | |
1d7c1841 GS |
10675 | break; |
10676 | default: | |
10677 | TOPPTR(nss,ix) = Nullop; | |
10678 | break; | |
10679 | } | |
10680 | } | |
10681 | else | |
10682 | TOPPTR(nss,ix) = Nullop; | |
10683 | break; | |
10684 | case SAVEt_FREEPV: | |
10685 | c = (char*)POPPTR(ss,ix); | |
10686 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
10687 | break; | |
10688 | case SAVEt_CLEARSV: | |
10689 | longval = POPLONG(ss,ix); | |
10690 | TOPLONG(nss,ix) = longval; | |
10691 | break; | |
10692 | case SAVEt_DELETE: | |
10693 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10694 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
10695 | c = (char*)POPPTR(ss,ix); |
10696 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
10697 | i = POPINT(ss,ix); | |
10698 | TOPINT(nss,ix) = i; | |
10699 | break; | |
10700 | case SAVEt_DESTRUCTOR: | |
10701 | ptr = POPPTR(ss,ix); | |
10702 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
10703 | dptr = POPDPTR(ss,ix); | |
1c7ab622 NC |
10704 | TOPDPTR(nss,ix) = DPTR2FPTR(void (*)(void*), |
10705 | any_dup(FPTR2DPTR(void *, dptr), | |
10706 | proto_perl)); | |
1d7c1841 GS |
10707 | break; |
10708 | case SAVEt_DESTRUCTOR_X: | |
10709 | ptr = POPPTR(ss,ix); | |
10710 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
10711 | dxptr = POPDXPTR(ss,ix); | |
1c7ab622 NC |
10712 | TOPDXPTR(nss,ix) = DPTR2FPTR(void (*)(pTHX_ void*), |
10713 | any_dup(FPTR2DPTR(void *, dxptr), | |
10714 | proto_perl)); | |
1d7c1841 GS |
10715 | break; |
10716 | case SAVEt_REGCONTEXT: | |
10717 | case SAVEt_ALLOC: | |
10718 | i = POPINT(ss,ix); | |
10719 | TOPINT(nss,ix) = i; | |
10720 | ix -= i; | |
10721 | break; | |
10722 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
10723 | i = POPINT(ss,ix); | |
10724 | TOPINT(nss,ix) = i; | |
10725 | break; | |
10726 | case SAVEt_AELEM: /* array element */ | |
10727 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10728 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10729 | i = POPINT(ss,ix); |
10730 | TOPINT(nss,ix) = i; | |
10731 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10732 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
10733 | break; |
10734 | case SAVEt_HELEM: /* hash element */ | |
10735 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10736 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10737 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10738 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10739 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 10740 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
10741 | break; |
10742 | case SAVEt_OP: | |
10743 | ptr = POPPTR(ss,ix); | |
10744 | TOPPTR(nss,ix) = ptr; | |
10745 | break; | |
10746 | case SAVEt_HINTS: | |
10747 | i = POPINT(ss,ix); | |
10748 | TOPINT(nss,ix) = i; | |
10749 | break; | |
c4410b1b GS |
10750 | case SAVEt_COMPPAD: |
10751 | av = (AV*)POPPTR(ss,ix); | |
c2ef0052 | 10752 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 10753 | break; |
c3564e5c GS |
10754 | case SAVEt_PADSV: |
10755 | longval = (long)POPLONG(ss,ix); | |
10756 | TOPLONG(nss,ix) = longval; | |
10757 | ptr = POPPTR(ss,ix); | |
10758 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10759 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10760 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 10761 | break; |
4f4e7967 | 10762 | case SAVEt_BOOL: |
21637969 | 10763 | ptr = POPPTR(ss,ix); |
4f4e7967 | 10764 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); |
21637969 | 10765 | longval = (long)POPBOOL(ss,ix); |
4f4e7967 JH |
10766 | TOPBOOL(nss,ix) = (bool)longval; |
10767 | break; | |
1d7c1841 GS |
10768 | default: |
10769 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
10770 | } | |
10771 | } | |
10772 | ||
10773 | return nss; | |
10774 | } | |
10775 | ||
c7df1ae8 NC |
10776 | |
10777 | /* if sv is a stash, call $class->CLONE_SKIP(), and set the SVphv_CLONEABLE | |
10778 | * flag to the result. This is done for each stash before cloning starts, | |
10779 | * so we know which stashes want their objects cloned */ | |
10780 | ||
10781 | static void | |
10782 | do_mark_cloneable_stash(pTHX_ SV *sv) | |
10783 | { | |
26ab6a78 NC |
10784 | const char *hvname = HvNAME_get((HV*)sv); |
10785 | if (hvname) { | |
c7df1ae8 NC |
10786 | GV* cloner = gv_fetchmethod_autoload((HV*)sv, "CLONE_SKIP", 0); |
10787 | SvFLAGS(sv) |= SVphv_CLONEABLE; /* clone objects by default */ | |
10788 | if (cloner && GvCV(cloner)) { | |
10789 | dSP; | |
10790 | UV status; | |
10791 | ||
10792 | ENTER; | |
10793 | SAVETMPS; | |
10794 | PUSHMARK(SP); | |
26ab6a78 | 10795 | XPUSHs(sv_2mortal(newSVpv(hvname, 0))); |
c7df1ae8 NC |
10796 | PUTBACK; |
10797 | call_sv((SV*)GvCV(cloner), G_SCALAR); | |
10798 | SPAGAIN; | |
10799 | status = POPu; | |
10800 | PUTBACK; | |
10801 | FREETMPS; | |
10802 | LEAVE; | |
10803 | if (status) | |
10804 | SvFLAGS(sv) &= ~SVphv_CLONEABLE; | |
10805 | } | |
10806 | } | |
10807 | } | |
10808 | ||
10809 | ||
10810 | ||
645c22ef DM |
10811 | /* |
10812 | =for apidoc perl_clone | |
10813 | ||
10814 | Create and return a new interpreter by cloning the current one. | |
10815 | ||
ac388100 | 10816 | perl_clone takes these flags as parameters: |
4f4e7967 JH |
10817 | |
10818 | CLONEf_COPY_STACKS - is used to, well, copy the stacks also, | |
10819 | without it we only clone the data and zero the stacks, | |
10820 | with it we copy the stacks and the new perl interpreter is | |
10821 | ready to run at the exact same point as the previous one. | |
10822 | The pseudo-fork code uses COPY_STACKS while the | |
10823 | threads->new doesn't. | |
10824 | ||
10825 | CLONEf_KEEP_PTR_TABLE | |
10826 | perl_clone keeps a ptr_table with the pointer of the old | |
10827 | variable as a key and the new variable as a value, | |
10828 | this allows it to check if something has been cloned and not | |
10829 | clone it again but rather just use the value and increase the | |
10830 | refcount. If KEEP_PTR_TABLE is not set then perl_clone will kill | |
10831 | the ptr_table using the function | |
10832 | C<ptr_table_free(PL_ptr_table); PL_ptr_table = NULL;>, | |
10833 | reason to keep it around is if you want to dup some of your own | |
10834 | variable who are outside the graph perl scans, example of this | |
10835 | code is in threads.xs create | |
10836 | ||
10837 | CLONEf_CLONE_HOST | |
10838 | This is a win32 thing, it is ignored on unix, it tells perls | |
10839 | win32host code (which is c++) to clone itself, this is needed on | |
10840 | win32 if you want to run two threads at the same time, | |
10841 | if you just want to do some stuff in a separate perl interpreter | |
10842 | and then throw it away and return to the original one, | |
10843 | you don't need to do anything. | |
10844 | ||
645c22ef DM |
10845 | =cut |
10846 | */ | |
10847 | ||
10848 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
10849 | EXTERN_C PerlInterpreter * |
10850 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 10851 | |
1d7c1841 GS |
10852 | PerlInterpreter * |
10853 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
10854 | { | |
1d7c1841 | 10855 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
10856 | |
10857 | /* perlhost.h so we need to call into it | |
10858 | to clone the host, CPerlHost should have a c interface, sky */ | |
10859 | ||
10860 | if (flags & CLONEf_CLONE_HOST) { | |
10861 | return perl_clone_host(proto_perl,flags); | |
10862 | } | |
10863 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
10864 | proto_perl->IMem, |
10865 | proto_perl->IMemShared, | |
10866 | proto_perl->IMemParse, | |
10867 | proto_perl->IEnv, | |
10868 | proto_perl->IStdIO, | |
10869 | proto_perl->ILIO, | |
10870 | proto_perl->IDir, | |
10871 | proto_perl->ISock, | |
10872 | proto_perl->IProc); | |
10873 | } | |
10874 | ||
10875 | PerlInterpreter * | |
10876 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
10877 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
10878 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
10879 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
10880 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
10881 | struct IPerlProc* ipP) | |
10882 | { | |
10883 | /* XXX many of the string copies here can be optimized if they're | |
10884 | * constants; they need to be allocated as common memory and just | |
10885 | * their pointers copied. */ | |
10886 | ||
10887 | IV i; | |
64aa0685 GS |
10888 | CLONE_PARAMS clone_params; |
10889 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 10890 | |
1d7c1841 | 10891 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
c7df1ae8 NC |
10892 | /* for each stash, determine whether its objects should be cloned */ |
10893 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 10894 | PERL_SET_THX(my_perl); |
1d7c1841 | 10895 | |
acfe0abc | 10896 | # ifdef DEBUGGING |
a4530404 | 10897 | Poison(my_perl, 1, PerlInterpreter); |
2802784b NC |
10898 | PL_op = Nullop; |
10899 | PL_curcop = (COP *)Nullop; | |
1d7c1841 GS |
10900 | PL_markstack = 0; |
10901 | PL_scopestack = 0; | |
10902 | PL_savestack = 0; | |
26776375 JH |
10903 | PL_savestack_ix = 0; |
10904 | PL_savestack_max = -1; | |
1d7c1841 | 10905 | PL_retstack = 0; |
66fe0623 | 10906 | PL_sig_pending = 0; |
25596c82 | 10907 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 10908 | # else /* !DEBUGGING */ |
1d7c1841 | 10909 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 10910 | # endif /* DEBUGGING */ |
1d7c1841 GS |
10911 | |
10912 | /* host pointers */ | |
10913 | PL_Mem = ipM; | |
10914 | PL_MemShared = ipMS; | |
10915 | PL_MemParse = ipMP; | |
10916 | PL_Env = ipE; | |
10917 | PL_StdIO = ipStd; | |
10918 | PL_LIO = ipLIO; | |
10919 | PL_Dir = ipD; | |
10920 | PL_Sock = ipS; | |
10921 | PL_Proc = ipP; | |
1d7c1841 GS |
10922 | #else /* !PERL_IMPLICIT_SYS */ |
10923 | IV i; | |
64aa0685 GS |
10924 | CLONE_PARAMS clone_params; |
10925 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 10926 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
c7df1ae8 NC |
10927 | /* for each stash, determine whether its objects should be cloned */ |
10928 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 10929 | PERL_SET_THX(my_perl); |
1d7c1841 GS |
10930 | |
10931 | # ifdef DEBUGGING | |
a4530404 | 10932 | Poison(my_perl, 1, PerlInterpreter); |
2802784b NC |
10933 | PL_op = Nullop; |
10934 | PL_curcop = (COP *)Nullop; | |
1d7c1841 GS |
10935 | PL_markstack = 0; |
10936 | PL_scopestack = 0; | |
10937 | PL_savestack = 0; | |
26776375 JH |
10938 | PL_savestack_ix = 0; |
10939 | PL_savestack_max = -1; | |
1d7c1841 | 10940 | PL_retstack = 0; |
66fe0623 | 10941 | PL_sig_pending = 0; |
25596c82 | 10942 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
10943 | # else /* !DEBUGGING */ |
10944 | Zero(my_perl, 1, PerlInterpreter); | |
10945 | # endif /* DEBUGGING */ | |
10946 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 10947 | param->flags = flags; |
59b40662 | 10948 | param->proto_perl = proto_perl; |
1d7c1841 GS |
10949 | |
10950 | /* arena roots */ | |
10951 | PL_xiv_arenaroot = NULL; | |
10952 | PL_xiv_root = NULL; | |
612f20c3 | 10953 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 10954 | PL_xnv_root = NULL; |
612f20c3 | 10955 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 10956 | PL_xrv_root = NULL; |
612f20c3 | 10957 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 10958 | PL_xpv_root = NULL; |
612f20c3 | 10959 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 10960 | PL_xpviv_root = NULL; |
612f20c3 | 10961 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 10962 | PL_xpvnv_root = NULL; |
612f20c3 | 10963 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 10964 | PL_xpvcv_root = NULL; |
612f20c3 | 10965 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 10966 | PL_xpvav_root = NULL; |
612f20c3 | 10967 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 10968 | PL_xpvhv_root = NULL; |
612f20c3 | 10969 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 10970 | PL_xpvmg_root = NULL; |
69ddb3b9 NC |
10971 | PL_xpvgv_arenaroot = NULL; |
10972 | PL_xpvgv_root = NULL; | |
612f20c3 | 10973 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 10974 | PL_xpvlv_root = NULL; |
612f20c3 | 10975 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 10976 | PL_xpvbm_root = NULL; |
612f20c3 | 10977 | PL_he_arenaroot = NULL; |
1d7c1841 | 10978 | PL_he_root = NULL; |
72c9d3b6 NC |
10979 | #if defined(USE_ITHREADS) |
10980 | PL_pte_arenaroot = NULL; | |
10981 | PL_pte_root = NULL; | |
10982 | #endif | |
1d7c1841 GS |
10983 | PL_nice_chunk = NULL; |
10984 | PL_nice_chunk_size = 0; | |
10985 | PL_sv_count = 0; | |
10986 | PL_sv_objcount = 0; | |
10987 | PL_sv_root = Nullsv; | |
10988 | PL_sv_arenaroot = Nullsv; | |
10989 | ||
10990 | PL_debug = proto_perl->Idebug; | |
10991 | ||
1a21fcb5 NC |
10992 | PL_hash_seed = proto_perl->Ihash_seed; |
10993 | PL_rehash_seed = proto_perl->Irehash_seed; | |
10994 | ||
e5dd39fc | 10995 | #ifdef USE_REENTRANT_API |
1c693a8c NC |
10996 | /* XXX: things like -Dm will segfault here in perlio, but doing |
10997 | * PERL_SET_CONTEXT(proto_perl); | |
10998 | * breaks too many other things | |
10999 | */ | |
59bd0823 | 11000 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
11001 | #endif |
11002 | ||
1d7c1841 GS |
11003 | /* create SV map for pointer relocation */ |
11004 | PL_ptr_table = ptr_table_new(); | |
11005 | ||
11006 | /* initialize these special pointers as early as possible */ | |
11007 | SvANY(&PL_sv_undef) = NULL; | |
11008 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
11009 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
11010 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
11011 | ||
1d7c1841 | 11012 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 | 11013 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
0766c23b NC |
11014 | SvFLAGS(&PL_sv_no) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11015 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
0da6cfda | 11016 | SvPV_set(&PL_sv_no, SAVEPVN(PL_No, 0)); |
a8dc4fe8 SP |
11017 | SvCUR_set(&PL_sv_no, 0); |
11018 | SvLEN_set(&PL_sv_no, 1); | |
0da6cfda SP |
11019 | SvIV_set(&PL_sv_no, 0); |
11020 | SvNV_set(&PL_sv_no, 0); | |
1d7c1841 GS |
11021 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); |
11022 | ||
1d7c1841 | 11023 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 | 11024 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
0766c23b NC |
11025 | SvFLAGS(&PL_sv_yes) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11026 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
0da6cfda | 11027 | SvPV_set(&PL_sv_yes, SAVEPVN(PL_Yes, 1)); |
a8dc4fe8 SP |
11028 | SvCUR_set(&PL_sv_yes, 1); |
11029 | SvLEN_set(&PL_sv_yes, 2); | |
0da6cfda SP |
11030 | SvIV_set(&PL_sv_yes, 1); |
11031 | SvNV_set(&PL_sv_yes, 1); | |
1d7c1841 GS |
11032 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); |
11033 | ||
05ec9bb3 | 11034 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
11035 | PL_strtab = newHV(); |
11036 | HvSHAREKEYS_off(PL_strtab); | |
1a21fcb5 | 11037 | hv_ksplit(PL_strtab, HvTOTALKEYS(proto_perl->Istrtab)); |
1d7c1841 GS |
11038 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); |
11039 | ||
05ec9bb3 NIS |
11040 | PL_compiling = proto_perl->Icompiling; |
11041 | ||
11042 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
11043 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
11044 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
11045 | ||
11046 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
11047 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
11048 | ||
1d7c1841 GS |
11049 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
11050 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 11051 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 11052 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 11053 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
11054 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
11055 | ||
11056 | /* pseudo environmental stuff */ | |
11057 | PL_origargc = proto_perl->Iorigargc; | |
7223e9d8 | 11058 | PL_origargv = proto_perl->Iorigargv; |
d2d73c3e | 11059 | |
d2d73c3e AB |
11060 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
11061 | ||
a1ea730d | 11062 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
11063 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
11064 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 11065 | #endif |
d2d73c3e AB |
11066 | |
11067 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
11068 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
11069 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 11070 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
11071 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
11072 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
11073 | |
11074 | /* switches */ | |
11075 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 11076 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
11077 | PL_localpatches = proto_perl->Ilocalpatches; |
11078 | PL_splitstr = proto_perl->Isplitstr; | |
11079 | PL_preprocess = proto_perl->Ipreprocess; | |
11080 | PL_minus_n = proto_perl->Iminus_n; | |
11081 | PL_minus_p = proto_perl->Iminus_p; | |
11082 | PL_minus_l = proto_perl->Iminus_l; | |
11083 | PL_minus_a = proto_perl->Iminus_a; | |
11084 | PL_minus_F = proto_perl->Iminus_F; | |
11085 | PL_doswitches = proto_perl->Idoswitches; | |
11086 | PL_dowarn = proto_perl->Idowarn; | |
11087 | PL_doextract = proto_perl->Idoextract; | |
11088 | PL_sawampersand = proto_perl->Isawampersand; | |
11089 | PL_unsafe = proto_perl->Iunsafe; | |
11090 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 11091 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
11092 | PL_perldb = proto_perl->Iperldb; |
11093 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 11094 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
11095 | |
11096 | /* magical thingies */ | |
11097 | /* XXX time(&PL_basetime) when asked for? */ | |
11098 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 11099 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
11100 | |
11101 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
11102 | PL_multiline = proto_perl->Imultiline; | |
11103 | PL_statusvalue = proto_perl->Istatusvalue; | |
11104 | #ifdef VMS | |
11105 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
11106 | #endif | |
0a378802 | 11107 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 11108 | |
4a4c6fe3 | 11109 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
11110 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
11111 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 11112 | |
d2f185dc AMS |
11113 | /* Clone the regex array */ |
11114 | PL_regex_padav = newAV(); | |
11115 | { | |
8c18bf38 | 11116 | const I32 len = av_len((AV*)proto_perl->Iregex_padav); |
d2f185dc | 11117 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); |
0f95fc41 AB |
11118 | av_push(PL_regex_padav, |
11119 | sv_dup_inc(regexen[0],param)); | |
11120 | for(i = 1; i <= len; i++) { | |
11121 | if(SvREPADTMP(regexen[i])) { | |
11122 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 11123 | } else { |
0f95fc41 AB |
11124 | av_push(PL_regex_padav, |
11125 | SvREFCNT_inc( | |
8cf8f3d1 | 11126 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 11127 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
11128 | )); |
11129 | } | |
d2f185dc AMS |
11130 | } |
11131 | } | |
11132 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 11133 | |
1d7c1841 | 11134 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
11135 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
11136 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
11137 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
11138 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
11139 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
11140 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
11141 | |
11142 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 11143 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
11144 | |
11145 | /* shortcuts to misc objects */ | |
d2d73c3e | 11146 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
11147 | |
11148 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
11149 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
11150 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
11151 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
11152 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
11153 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
11154 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
11155 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
11156 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
11157 | |
11158 | /* symbol tables */ | |
d2d73c3e AB |
11159 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
11160 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
11161 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
11162 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
11163 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
11164 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
11165 | ||
11166 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 11167 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
5b7ea690 | 11168 | PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); |
d2d73c3e AB |
11169 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
11170 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
11171 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
11172 | |
11173 | PL_sub_generation = proto_perl->Isub_generation; | |
11174 | ||
11175 | /* funky return mechanisms */ | |
11176 | PL_forkprocess = proto_perl->Iforkprocess; | |
11177 | ||
11178 | /* subprocess state */ | |
d2d73c3e | 11179 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
11180 | |
11181 | /* internal state */ | |
11182 | PL_tainting = proto_perl->Itainting; | |
654c77f7 | 11183 | PL_taint_warn = proto_perl->Itaint_warn; |
1d7c1841 GS |
11184 | PL_maxo = proto_perl->Imaxo; |
11185 | if (proto_perl->Iop_mask) | |
11186 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
11187 | else | |
11188 | PL_op_mask = Nullch; | |
11189 | ||
11190 | /* current interpreter roots */ | |
d2d73c3e | 11191 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
11192 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
11193 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 11194 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
11195 | PL_eval_start = proto_perl->Ieval_start; |
11196 | ||
11197 | /* runtime control stuff */ | |
11198 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
11199 | PL_copline = proto_perl->Icopline; | |
11200 | ||
11201 | PL_filemode = proto_perl->Ifilemode; | |
11202 | PL_lastfd = proto_perl->Ilastfd; | |
11203 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
11204 | PL_Argv = NULL; | |
11205 | PL_Cmd = Nullch; | |
11206 | PL_gensym = proto_perl->Igensym; | |
11207 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 11208 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
11209 | PL_laststatval = proto_perl->Ilaststatval; |
11210 | PL_laststype = proto_perl->Ilaststype; | |
11211 | PL_mess_sv = Nullsv; | |
11212 | ||
d2d73c3e | 11213 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
11214 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
11215 | ||
11216 | /* interpreter atexit processing */ | |
11217 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
11218 | if (PL_exitlistlen) { | |
11219 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
11220 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
11221 | } | |
11222 | else | |
11223 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 11224 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
11225 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
11226 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
11227 | |
11228 | PL_profiledata = NULL; | |
a8fc9800 | 11229 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 11230 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 11231 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 11232 | |
d2d73c3e | 11233 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
9755d405 JH |
11234 | |
11235 | PAD_CLONE_VARS(proto_perl, param); | |
1d7c1841 GS |
11236 | |
11237 | #ifdef HAVE_INTERP_INTERN | |
11238 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
11239 | #endif | |
11240 | ||
11241 | /* more statics moved here */ | |
11242 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 11243 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
11244 | |
11245 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
11246 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
11247 | ||
11248 | PL_uid = proto_perl->Iuid; | |
11249 | PL_euid = proto_perl->Ieuid; | |
11250 | PL_gid = proto_perl->Igid; | |
11251 | PL_egid = proto_perl->Iegid; | |
11252 | PL_nomemok = proto_perl->Inomemok; | |
11253 | PL_an = proto_perl->Ian; | |
1d7c1841 GS |
11254 | PL_op_seqmax = proto_perl->Iop_seqmax; |
11255 | PL_evalseq = proto_perl->Ievalseq; | |
11256 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
11257 | PL_origalen = proto_perl->Iorigalen; | |
11258 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
11259 | PL_osname = SAVEPV(proto_perl->Iosname); | |
8257dec7 | 11260 | PL_sh_path_compat = proto_perl->Ish_path_compat; /* XXX never deallocated */ |
1d7c1841 GS |
11261 | PL_sighandlerp = proto_perl->Isighandlerp; |
11262 | ||
11263 | ||
11264 | PL_runops = proto_perl->Irunops; | |
11265 | ||
11266 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
11267 | ||
11268 | #ifdef CSH | |
11269 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 11270 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
11271 | #endif |
11272 | ||
11273 | PL_lex_state = proto_perl->Ilex_state; | |
11274 | PL_lex_defer = proto_perl->Ilex_defer; | |
11275 | PL_lex_expect = proto_perl->Ilex_expect; | |
11276 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
11277 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
11278 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
11279 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
11280 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
11281 | PL_lex_op = proto_perl->Ilex_op; |
11282 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
11283 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
11284 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
11285 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
11286 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
11287 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
11288 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
11289 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
11290 | ||
11291 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
11292 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
11293 | PL_nexttoke = proto_perl->Inexttoke; | |
11294 | ||
1d773130 TB |
11295 | /* XXX This is probably masking the deeper issue of why |
11296 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
11297 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
11298 | * (A little debugging with a watchpoint on it may help.) | |
11299 | */ | |
389edf32 TB |
11300 | if (SvANY(proto_perl->Ilinestr)) { |
11301 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
fdac8c4b | 11302 | i = proto_perl->Ibufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11303 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11304 | i = proto_perl->Ioldbufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11305 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11306 | i = proto_perl->Ioldoldbufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11307 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11308 | i = proto_perl->Ilinestart - SvPVX_const(proto_perl->Ilinestr); |
389edf32 TB |
11309 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
11310 | } | |
11311 | else { | |
11312 | PL_linestr = NEWSV(65,79); | |
11313 | sv_upgrade(PL_linestr,SVt_PVIV); | |
11314 | sv_setpvn(PL_linestr,"",0); | |
11315 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
11316 | } | |
1d7c1841 | 11317 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
11318 | PL_pending_ident = proto_perl->Ipending_ident; |
11319 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
11320 | ||
11321 | PL_expect = proto_perl->Iexpect; | |
11322 | ||
11323 | PL_multi_start = proto_perl->Imulti_start; | |
11324 | PL_multi_end = proto_perl->Imulti_end; | |
11325 | PL_multi_open = proto_perl->Imulti_open; | |
11326 | PL_multi_close = proto_perl->Imulti_close; | |
11327 | ||
11328 | PL_error_count = proto_perl->Ierror_count; | |
11329 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 11330 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 | 11331 | |
1d773130 | 11332 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 | 11333 | if (SvANY(proto_perl->Ilinestr)) { |
fdac8c4b | 11334 | i = proto_perl->Ilast_uni - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11335 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11336 | i = proto_perl->Ilast_lop - SvPVX_const(proto_perl->Ilinestr); |
389edf32 TB |
11337 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
11338 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
11339 | } | |
11340 | else { | |
11341 | PL_last_uni = SvPVX(PL_linestr); | |
11342 | PL_last_lop = SvPVX(PL_linestr); | |
11343 | PL_last_lop_op = 0; | |
11344 | } | |
1d7c1841 | 11345 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 11346 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
11347 | #ifdef FCRYPT |
11348 | PL_cryptseen = proto_perl->Icryptseen; | |
11349 | #endif | |
11350 | ||
11351 | PL_hints = proto_perl->Ihints; | |
11352 | ||
11353 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
11354 | ||
11355 | #ifdef USE_LOCALE_COLLATE | |
11356 | PL_collation_ix = proto_perl->Icollation_ix; | |
11357 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
11358 | PL_collation_standard = proto_perl->Icollation_standard; | |
11359 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
11360 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
11361 | #endif /* USE_LOCALE_COLLATE */ | |
11362 | ||
11363 | #ifdef USE_LOCALE_NUMERIC | |
11364 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
11365 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
11366 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 11367 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
11368 | #endif /* !USE_LOCALE_NUMERIC */ |
11369 | ||
11370 | /* utf8 character classes */ | |
d2d73c3e AB |
11371 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
11372 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
11373 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
11374 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
11375 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
11376 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
11377 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
11378 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
11379 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
11380 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
11381 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
11382 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
11383 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
11384 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
11385 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
11386 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
11387 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 11388 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
11389 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
11390 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 | 11391 | |
654c77f7 | 11392 | /* Did the locale setup indicate UTF-8? */ |
30260be2 | 11393 | PL_utf8locale = proto_perl->Iutf8locale; |
654c77f7 JH |
11394 | /* Unicode features (see perlrun/-C) */ |
11395 | PL_unicode = proto_perl->Iunicode; | |
11396 | ||
11397 | /* Pre-5.8 signals control */ | |
11398 | PL_signals = proto_perl->Isignals; | |
11399 | ||
11400 | /* times() ticks per second */ | |
11401 | PL_clocktick = proto_perl->Iclocktick; | |
11402 | ||
11403 | /* Recursion stopper for PerlIO_find_layer */ | |
11404 | PL_in_load_module = proto_perl->Iin_load_module; | |
11405 | ||
11406 | /* sort() routine */ | |
11407 | PL_sort_RealCmp = proto_perl->Isort_RealCmp; | |
11408 | ||
630cd32b JH |
11409 | /* Not really needed/useful since the reenrant_retint is "volatile", |
11410 | * but do it for consistency's sake. */ | |
11411 | PL_reentrant_retint = proto_perl->Ireentrant_retint; | |
11412 | ||
0710cc63 JH |
11413 | /* Hooks to shared SVs and locks. */ |
11414 | PL_sharehook = proto_perl->Isharehook; | |
11415 | PL_lockhook = proto_perl->Ilockhook; | |
11416 | PL_unlockhook = proto_perl->Iunlockhook; | |
11417 | PL_threadhook = proto_perl->Ithreadhook; | |
11418 | ||
11419 | PL_runops_std = proto_perl->Irunops_std; | |
11420 | PL_runops_dbg = proto_perl->Irunops_dbg; | |
11421 | ||
11422 | #ifdef THREADS_HAVE_PIDS | |
11423 | PL_ppid = proto_perl->Ippid; | |
11424 | #endif | |
11425 | ||
1d7c1841 GS |
11426 | /* swatch cache */ |
11427 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
11428 | PL_last_swash_klen = 0; | |
11429 | PL_last_swash_key[0]= '\0'; | |
11430 | PL_last_swash_tmps = (U8*)NULL; | |
11431 | PL_last_swash_slen = 0; | |
11432 | ||
11433 | /* perly.c globals */ | |
11434 | PL_yydebug = proto_perl->Iyydebug; | |
11435 | PL_yynerrs = proto_perl->Iyynerrs; | |
11436 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
11437 | PL_yychar = proto_perl->Iyychar; | |
11438 | PL_yyval = proto_perl->Iyyval; | |
11439 | PL_yylval = proto_perl->Iyylval; | |
11440 | ||
11441 | PL_glob_index = proto_perl->Iglob_index; | |
11442 | PL_srand_called = proto_perl->Isrand_called; | |
11443 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
11444 | PL_bitcount = Nullch; /* reinits on demand */ | |
11445 | ||
66fe0623 NIS |
11446 | if (proto_perl->Ipsig_pend) { |
11447 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 11448 | } |
66fe0623 NIS |
11449 | else { |
11450 | PL_psig_pend = (int*)NULL; | |
11451 | } | |
11452 | ||
1d7c1841 | 11453 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
11454 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
11455 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 11456 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
11457 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
11458 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
11459 | } |
11460 | } | |
11461 | else { | |
11462 | PL_psig_ptr = (SV**)NULL; | |
11463 | PL_psig_name = (SV**)NULL; | |
11464 | } | |
11465 | ||
11466 | /* thrdvar.h stuff */ | |
11467 | ||
a0739874 | 11468 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
11469 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
11470 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
11471 | PL_tmps_max = proto_perl->Ttmps_max; | |
11472 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
11473 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
11474 | i = 0; | |
11475 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 11476 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
11477 | ++i; |
11478 | } | |
11479 | ||
11480 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
11481 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
11482 | Newz(54, PL_markstack, i, I32); | |
11483 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
11484 | - proto_perl->Tmarkstack); | |
11485 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
11486 | - proto_perl->Tmarkstack); | |
11487 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
11488 | PL_markstack_ptr - PL_markstack + 1, I32); | |
11489 | ||
11490 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
11491 | * NOTE: unlike the others! */ | |
11492 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
11493 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
11494 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
11495 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
11496 | ||
11497 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
11498 | * NOTE: unlike the others! */ | |
11499 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
11500 | PL_retstack_max = proto_perl->Tretstack_max; | |
11501 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
ce0a1ae0 | 11502 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, OP*); |
1d7c1841 GS |
11503 | |
11504 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 11505 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
11506 | |
11507 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
11508 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
11509 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
11510 | |
11511 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
11512 | PL_stack_base = AvARRAY(PL_curstack); | |
11513 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
11514 | - proto_perl->Tstack_base); | |
11515 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
11516 | ||
11517 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
11518 | * NOTE: unlike the others! */ | |
11519 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
11520 | PL_savestack_max = proto_perl->Tsavestack_max; | |
11521 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 11522 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
11523 | } |
11524 | else { | |
11525 | init_stacks(); | |
985e7056 | 11526 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
11527 | } |
11528 | ||
11529 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
11530 | PL_top_env = &PL_start_env; | |
11531 | ||
11532 | PL_op = proto_perl->Top; | |
11533 | ||
11534 | PL_Sv = Nullsv; | |
11535 | PL_Xpv = (XPV*)NULL; | |
11536 | PL_na = proto_perl->Tna; | |
11537 | ||
11538 | PL_statbuf = proto_perl->Tstatbuf; | |
11539 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
11540 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
11541 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
11542 | #ifdef HAS_TIMES |
11543 | PL_timesbuf = proto_perl->Ttimesbuf; | |
11544 | #endif | |
11545 | ||
11546 | PL_tainted = proto_perl->Ttainted; | |
11547 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
11548 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
11549 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
11550 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
11551 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 11552 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
11553 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
11554 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
11555 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
11556 | |
11557 | PL_restartop = proto_perl->Trestartop; | |
11558 | PL_in_eval = proto_perl->Tin_eval; | |
11559 | PL_delaymagic = proto_perl->Tdelaymagic; | |
11560 | PL_dirty = proto_perl->Tdirty; | |
11561 | PL_localizing = proto_perl->Tlocalizing; | |
11562 | ||
14dd3ad8 | 11563 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 11564 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 11565 | #endif |
d2d73c3e | 11566 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
73c86719 | 11567 | PL_hv_fetch_ent_mh = Nullhe; |
1d7c1841 GS |
11568 | PL_modcount = proto_perl->Tmodcount; |
11569 | PL_lastgotoprobe = Nullop; | |
11570 | PL_dumpindent = proto_perl->Tdumpindent; | |
11571 | ||
11572 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
11573 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
11574 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
11575 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
11576 | PL_sortcxix = proto_perl->Tsortcxix; |
11577 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
11578 | PL_efloatsize = 0; /* reinits on demand */ | |
11579 | ||
11580 | /* regex stuff */ | |
11581 | ||
11582 | PL_screamfirst = NULL; | |
11583 | PL_screamnext = NULL; | |
11584 | PL_maxscream = -1; /* reinits on demand */ | |
11585 | PL_lastscream = Nullsv; | |
11586 | ||
11587 | PL_watchaddr = NULL; | |
11588 | PL_watchok = Nullch; | |
11589 | ||
11590 | PL_regdummy = proto_perl->Tregdummy; | |
11591 | PL_regcomp_parse = Nullch; | |
11592 | PL_regxend = Nullch; | |
11593 | PL_regcode = (regnode*)NULL; | |
11594 | PL_regnaughty = 0; | |
11595 | PL_regsawback = 0; | |
11596 | PL_regprecomp = Nullch; | |
11597 | PL_regnpar = 0; | |
11598 | PL_regsize = 0; | |
11599 | PL_regflags = 0; | |
11600 | PL_regseen = 0; | |
11601 | PL_seen_zerolen = 0; | |
11602 | PL_seen_evals = 0; | |
11603 | PL_regcomp_rx = (regexp*)NULL; | |
11604 | PL_extralen = 0; | |
11605 | PL_colorset = 0; /* reinits PL_colors[] */ | |
11606 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
11607 | PL_reg_whilem_seen = 0; | |
11608 | PL_reginput = Nullch; | |
11609 | PL_regbol = Nullch; | |
11610 | PL_regeol = Nullch; | |
11611 | PL_regstartp = (I32*)NULL; | |
11612 | PL_regendp = (I32*)NULL; | |
11613 | PL_reglastparen = (U32*)NULL; | |
4e58e0cf | 11614 | PL_reglastcloseparen = (U32*)NULL; |
1d7c1841 | 11615 | PL_regtill = Nullch; |
1d7c1841 GS |
11616 | PL_reg_start_tmp = (char**)NULL; |
11617 | PL_reg_start_tmpl = 0; | |
11618 | PL_regdata = (struct reg_data*)NULL; | |
11619 | PL_bostr = Nullch; | |
11620 | PL_reg_flags = 0; | |
11621 | PL_reg_eval_set = 0; | |
11622 | PL_regnarrate = 0; | |
11623 | PL_regprogram = (regnode*)NULL; | |
11624 | PL_regindent = 0; | |
11625 | PL_regcc = (CURCUR*)NULL; | |
11626 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
11627 | PL_reg_re = (regexp*)NULL; | |
11628 | PL_reg_ganch = Nullch; | |
11629 | PL_reg_sv = Nullsv; | |
53c4c00c | 11630 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
11631 | PL_reg_magic = (MAGIC*)NULL; |
11632 | PL_reg_oldpos = 0; | |
11633 | PL_reg_oldcurpm = (PMOP*)NULL; | |
11634 | PL_reg_curpm = (PMOP*)NULL; | |
11635 | PL_reg_oldsaved = Nullch; | |
11636 | PL_reg_oldsavedlen = 0; | |
11637 | PL_reg_maxiter = 0; | |
11638 | PL_reg_leftiter = 0; | |
11639 | PL_reg_poscache = Nullch; | |
11640 | PL_reg_poscache_size= 0; | |
11641 | ||
11642 | /* RE engine - function pointers */ | |
11643 | PL_regcompp = proto_perl->Tregcompp; | |
11644 | PL_regexecp = proto_perl->Tregexecp; | |
11645 | PL_regint_start = proto_perl->Tregint_start; | |
11646 | PL_regint_string = proto_perl->Tregint_string; | |
11647 | PL_regfree = proto_perl->Tregfree; | |
11648 | ||
11649 | PL_reginterp_cnt = 0; | |
11650 | PL_reg_starttry = 0; | |
11651 | ||
a2efc822 SC |
11652 | /* Pluggable optimizer */ |
11653 | PL_peepp = proto_perl->Tpeepp; | |
11654 | ||
c0401c5d JH |
11655 | PL_stashcache = newHV(); |
11656 | ||
a0739874 DM |
11657 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
11658 | ptr_table_free(PL_ptr_table); | |
11659 | PL_ptr_table = NULL; | |
11660 | } | |
8cf8f3d1 | 11661 | |
f284b03f AMS |
11662 | /* Call the ->CLONE method, if it exists, for each of the stashes |
11663 | identified by sv_dup() above. | |
11664 | */ | |
d2d73c3e AB |
11665 | while(av_len(param->stashes) != -1) { |
11666 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
11667 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
11668 | if (cloner && GvCV(cloner)) { | |
11669 | dSP; | |
11670 | ENTER; | |
11671 | SAVETMPS; | |
11672 | PUSHMARK(SP); | |
26ab6a78 | 11673 | XPUSHs(sv_2mortal(newSVpv(HvNAME_get(stash), 0))); |
f284b03f AMS |
11674 | PUTBACK; |
11675 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
11676 | FREETMPS; | |
11677 | LEAVE; | |
11678 | } | |
4a09accc | 11679 | } |
a0739874 | 11680 | |
dc507217 | 11681 | SvREFCNT_dec(param->stashes); |
dc507217 | 11682 | |
d2e2df35 MHM |
11683 | /* orphaned? eg threads->new inside BEGIN or use */ |
11684 | if (PL_compcv && ! SvREFCNT(PL_compcv)) { | |
8c18bf38 | 11685 | (void)SvREFCNT_inc(PL_compcv); |
d2e2df35 MHM |
11686 | SAVEFREESV(PL_compcv); |
11687 | } | |
11688 | ||
1d7c1841 | 11689 | return my_perl; |
1d7c1841 GS |
11690 | } |
11691 | ||
1d7c1841 | 11692 | #endif /* USE_ITHREADS */ |
a0ae6670 | 11693 | |
9f4817db | 11694 | /* |
ccfc67b7 JH |
11695 | =head1 Unicode Support |
11696 | ||
9f4817db JH |
11697 | =for apidoc sv_recode_to_utf8 |
11698 | ||
5d170f3a JH |
11699 | The encoding is assumed to be an Encode object, on entry the PV |
11700 | of the sv is assumed to be octets in that encoding, and the sv | |
11701 | will be converted into Unicode (and UTF-8). | |
9f4817db | 11702 | |
5d170f3a JH |
11703 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
11704 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
11705 | an C<Encode::XS> Encoding object, bad things will happen. |
11706 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 11707 | |
5d170f3a | 11708 | The PV of the sv is returned. |
9f4817db | 11709 | |
5d170f3a JH |
11710 | =cut */ |
11711 | ||
11712 | char * | |
11713 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
11714 | { | |
975adce1 | 11715 | if (SvPOK(sv) && !SvUTF8(sv) && !IN_BYTES && SvROK(encoding)) { |
5b7ea690 JH |
11716 | SV *uni; |
11717 | STRLEN len; | |
11718 | char *s; | |
11719 | dSP; | |
11720 | ENTER; | |
11721 | SAVETMPS; | |
975adce1 | 11722 | save_re_context(); |
5b7ea690 JH |
11723 | PUSHMARK(sp); |
11724 | EXTEND(SP, 3); | |
11725 | XPUSHs(encoding); | |
11726 | XPUSHs(sv); | |
f9893866 NIS |
11727 | /* |
11728 | NI-S 2002/07/09 | |
11729 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
11730 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means | |
11731 | remove converted chars from source. | |
11732 | ||
11733 | Both will default the value - let them. | |
11734 | ||
5b7ea690 | 11735 | XPUSHs(&PL_sv_yes); |
f9893866 | 11736 | */ |
5b7ea690 JH |
11737 | PUTBACK; |
11738 | call_method("decode", G_SCALAR); | |
11739 | SPAGAIN; | |
11740 | uni = POPs; | |
11741 | PUTBACK; | |
11742 | s = SvPV(uni, len); | |
fdac8c4b | 11743 | if (s != SvPVX_const(sv)) { |
5b7ea690 | 11744 | SvGROW(sv, len + 1); |
fdac8c4b | 11745 | Move(s, SvPVX_const(sv), len, char); |
5b7ea690 JH |
11746 | SvCUR_set(sv, len); |
11747 | SvPVX(sv)[len] = 0; | |
11748 | } | |
11749 | FREETMPS; | |
11750 | LEAVE; | |
5b7ea690 | 11751 | SvUTF8_on(sv); |
765545f3 | 11752 | return SvPVX(sv); |
f9893866 | 11753 | } |
765545f3 | 11754 | return SvPOKp(sv) ? SvPVX(sv) : NULL; |
9f4817db JH |
11755 | } |
11756 | ||
975adce1 JH |
11757 | /* |
11758 | =for apidoc sv_cat_decode | |
11759 | ||
11760 | The encoding is assumed to be an Encode object, the PV of the ssv is | |
11761 | assumed to be octets in that encoding and decoding the input starts | |
11762 | from the position which (PV + *offset) pointed to. The dsv will be | |
11763 | concatenated the decoded UTF-8 string from ssv. Decoding will terminate | |
11764 | when the string tstr appears in decoding output or the input ends on | |
11765 | the PV of the ssv. The value which the offset points will be modified | |
11766 | to the last input position on the ssv. | |
68795e93 | 11767 | |
975adce1 JH |
11768 | Returns TRUE if the terminator was found, else returns FALSE. |
11769 | ||
11770 | =cut */ | |
11771 | ||
11772 | bool | |
11773 | Perl_sv_cat_decode(pTHX_ SV *dsv, SV *encoding, | |
11774 | SV *ssv, int *offset, char *tstr, int tlen) | |
11775 | { | |
c04fee9e | 11776 | bool ret = FALSE; |
975adce1 | 11777 | if (SvPOK(ssv) && SvPOK(dsv) && SvROK(encoding) && offset) { |
975adce1 JH |
11778 | SV *offsv; |
11779 | dSP; | |
11780 | ENTER; | |
11781 | SAVETMPS; | |
11782 | save_re_context(); | |
11783 | PUSHMARK(sp); | |
11784 | EXTEND(SP, 6); | |
11785 | XPUSHs(encoding); | |
11786 | XPUSHs(dsv); | |
11787 | XPUSHs(ssv); | |
11788 | XPUSHs(offsv = sv_2mortal(newSViv(*offset))); | |
11789 | XPUSHs(sv_2mortal(newSVpvn(tstr, tlen))); | |
11790 | PUTBACK; | |
11791 | call_method("cat_decode", G_SCALAR); | |
11792 | SPAGAIN; | |
11793 | ret = SvTRUE(TOPs); | |
11794 | *offset = SvIV(offsv); | |
11795 | PUTBACK; | |
11796 | FREETMPS; | |
11797 | LEAVE; | |
975adce1 | 11798 | } |
c04fee9e JH |
11799 | else |
11800 | Perl_croak(aTHX_ "Invalid argument to sv_cat_decode"); | |
11801 | return ret; | |
975adce1 | 11802 | } |
f9893866 | 11803 | |
583439ab NC |
11804 | /* |
11805 | * Local variables: | |
11806 | * c-indentation-style: bsd | |
11807 | * c-basic-offset: 4 | |
11808 | * indent-tabs-mode: t | |
11809 | * End: | |
11810 | * | |
d8294a4d NC |
11811 | * ex: set ts=8 sts=4 sw=4 noet: |
11812 | */ |