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 | ||
4c58c75a NC |
161 | /* |
162 | * nice_chunk and nice_chunk size need to be set | |
163 | * and queried under the protection of sv_mutex | |
164 | */ | |
165 | void | |
166 | Perl_offer_nice_chunk(pTHX_ void *chunk, U32 chunk_size) | |
167 | { | |
168 | void *new_chunk; | |
169 | U32 new_chunk_size; | |
170 | LOCK_SV_MUTEX; | |
171 | new_chunk = (void *)(chunk); | |
172 | new_chunk_size = (chunk_size); | |
173 | if (new_chunk_size > PL_nice_chunk_size) { | |
174 | Safefree(PL_nice_chunk); | |
175 | PL_nice_chunk = (char *) new_chunk; | |
176 | PL_nice_chunk_size = new_chunk_size; | |
177 | } else { | |
178 | Safefree(chunk); | |
179 | } | |
180 | UNLOCK_SV_MUTEX; | |
181 | } | |
69ddb3b9 | 182 | |
053fc874 GS |
183 | #define plant_SV(p) \ |
184 | STMT_START { \ | |
185 | SvANY(p) = (void *)PL_sv_root; \ | |
186 | SvFLAGS(p) = SVTYPEMASK; \ | |
187 | PL_sv_root = (p); \ | |
188 | --PL_sv_count; \ | |
189 | } STMT_END | |
a0d0e21e | 190 | |
fba3b22e | 191 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
192 | #define uproot_SV(p) \ |
193 | STMT_START { \ | |
194 | (p) = PL_sv_root; \ | |
195 | PL_sv_root = (SV*)SvANY(p); \ | |
196 | ++PL_sv_count; \ | |
197 | } STMT_END | |
198 | ||
645c22ef | 199 | |
69ddb3b9 NC |
200 | /* make some more SVs by adding another arena */ |
201 | ||
202 | /* sv_mutex must be held while calling more_sv() */ | |
203 | STATIC SV* | |
204 | S_more_sv(pTHX) | |
205 | { | |
206 | SV* sv; | |
207 | ||
208 | if (PL_nice_chunk) { | |
209 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
210 | PL_nice_chunk = Nullch; | |
211 | PL_nice_chunk_size = 0; | |
212 | } | |
213 | else { | |
214 | char *chunk; /* must use New here to match call to */ | |
cd7a8267 | 215 | Newx(chunk,PERL_ARENA_SIZE,char); /* Safefree() in sv_free_arenas() */ |
69ddb3b9 NC |
216 | sv_add_arena(chunk, PERL_ARENA_SIZE, 0); |
217 | } | |
218 | uproot_SV(sv); | |
219 | return sv; | |
220 | } | |
221 | ||
645c22ef DM |
222 | /* new_SV(): return a new, empty SV head */ |
223 | ||
c240c76d JH |
224 | #ifdef DEBUG_LEAKING_SCALARS |
225 | /* provide a real function for a debugger to play with */ | |
226 | STATIC SV* | |
227 | S_new_SV(pTHX) | |
228 | { | |
229 | SV* sv; | |
230 | ||
231 | LOCK_SV_MUTEX; | |
232 | if (PL_sv_root) | |
233 | uproot_SV(sv); | |
234 | else | |
69ddb3b9 | 235 | sv = S_more_sv(aTHX); |
c240c76d JH |
236 | UNLOCK_SV_MUTEX; |
237 | SvANY(sv) = 0; | |
238 | SvREFCNT(sv) = 1; | |
239 | SvFLAGS(sv) = 0; | |
240 | return sv; | |
241 | } | |
242 | # define new_SV(p) (p)=S_new_SV(aTHX) | |
243 | ||
244 | #else | |
245 | # define new_SV(p) \ | |
053fc874 GS |
246 | STMT_START { \ |
247 | LOCK_SV_MUTEX; \ | |
248 | if (PL_sv_root) \ | |
249 | uproot_SV(p); \ | |
250 | else \ | |
69ddb3b9 | 251 | (p) = S_more_sv(aTHX); \ |
053fc874 GS |
252 | UNLOCK_SV_MUTEX; \ |
253 | SvANY(p) = 0; \ | |
254 | SvREFCNT(p) = 1; \ | |
255 | SvFLAGS(p) = 0; \ | |
256 | } STMT_END | |
c240c76d | 257 | #endif |
463ee0b2 | 258 | |
645c22ef DM |
259 | |
260 | /* del_SV(): return an empty SV head to the free list */ | |
261 | ||
a0d0e21e | 262 | #ifdef DEBUGGING |
4561caa4 | 263 | |
053fc874 GS |
264 | #define del_SV(p) \ |
265 | STMT_START { \ | |
266 | LOCK_SV_MUTEX; \ | |
aea4f609 | 267 | if (DEBUG_D_TEST) \ |
053fc874 GS |
268 | del_sv(p); \ |
269 | else \ | |
270 | plant_SV(p); \ | |
271 | UNLOCK_SV_MUTEX; \ | |
272 | } STMT_END | |
a0d0e21e | 273 | |
76e3520e | 274 | STATIC void |
cea2e8a9 | 275 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 276 | { |
aea4f609 | 277 | if (DEBUG_D_TEST) { |
4633a7c4 | 278 | SV* sva; |
8c18bf38 | 279 | bool ok = 0; |
3280af22 | 280 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
0188be2e AL |
281 | const SV * const sv = sva + 1; |
282 | const SV * const svend = &sva[SvREFCNT(sva)]; | |
2a8de9e2 | 283 | if (p >= sv && p < svend) { |
a0d0e21e | 284 | ok = 1; |
2a8de9e2 AL |
285 | break; |
286 | } | |
a0d0e21e LW |
287 | } |
288 | if (!ok) { | |
0453d815 | 289 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 290 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
b035a42e NC |
291 | "Attempt to free non-arena SV: 0x%"UVxf |
292 | pTHX__FORMAT, PTR2UV(p) pTHX__VALUE); | |
a0d0e21e LW |
293 | return; |
294 | } | |
295 | } | |
4561caa4 | 296 | plant_SV(p); |
463ee0b2 | 297 | } |
a0d0e21e | 298 | |
4561caa4 CS |
299 | #else /* ! DEBUGGING */ |
300 | ||
301 | #define del_SV(p) plant_SV(p) | |
302 | ||
303 | #endif /* DEBUGGING */ | |
463ee0b2 | 304 | |
645c22ef DM |
305 | |
306 | /* | |
ccfc67b7 JH |
307 | =head1 SV Manipulation Functions |
308 | ||
645c22ef DM |
309 | =for apidoc sv_add_arena |
310 | ||
311 | Given a chunk of memory, link it to the head of the list of arenas, | |
312 | and split it into a list of free SVs. | |
313 | ||
314 | =cut | |
315 | */ | |
316 | ||
4633a7c4 | 317 | void |
864dbfa3 | 318 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 319 | { |
4633a7c4 | 320 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
321 | register SV* sv; |
322 | register SV* svend; | |
4633a7c4 LW |
323 | |
324 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 325 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
326 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
327 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
328 | ||
3280af22 NIS |
329 | PL_sv_arenaroot = sva; |
330 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
331 | |
332 | svend = &sva[SvREFCNT(sva) - 1]; | |
333 | sv = sva + 1; | |
463ee0b2 | 334 | while (sv < svend) { |
a0d0e21e | 335 | SvANY(sv) = (void *)(SV*)(sv + 1); |
2a8de9e2 | 336 | #ifdef DEBUGGING |
8b3a4b74 | 337 | SvREFCNT(sv) = 0; |
2a8de9e2 AL |
338 | #endif |
339 | /* Must always set typemask because it's awlays checked in on cleanup | |
340 | when the arenas are walked looking for objects. */ | |
8990e307 | 341 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
342 | sv++; |
343 | } | |
344 | SvANY(sv) = 0; | |
2a8de9e2 AL |
345 | #ifdef DEBUGGING |
346 | SvREFCNT(sv) = 0; | |
347 | #endif | |
4633a7c4 LW |
348 | SvFLAGS(sv) = SVTYPEMASK; |
349 | } | |
350 | ||
b035a42e NC |
351 | /* visit(): call the named function for each non-free SV in the arenas |
352 | * whose flags field matches the flags/mask args. */ | |
645c22ef | 353 | |
5226ed68 | 354 | STATIC I32 |
b035a42e | 355 | S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask) |
8990e307 | 356 | { |
4633a7c4 | 357 | SV* sva; |
5226ed68 | 358 | I32 visited = 0; |
8990e307 | 359 | |
3280af22 | 360 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
0188be2e | 361 | register const SV * const svend = &sva[SvREFCNT(sva)]; |
8c18bf38 | 362 | register SV* sv; |
4561caa4 | 363 | for (sv = sva + 1; sv < svend; ++sv) { |
b035a42e NC |
364 | if (SvTYPE(sv) != SVTYPEMASK |
365 | && (sv->sv_flags & mask) == flags | |
366 | && SvREFCNT(sv)) | |
367 | { | |
acfe0abc | 368 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
369 | ++visited; |
370 | } | |
8990e307 LW |
371 | } |
372 | } | |
5226ed68 | 373 | return visited; |
8990e307 LW |
374 | } |
375 | ||
758a08c3 JH |
376 | #ifdef DEBUGGING |
377 | ||
645c22ef DM |
378 | /* called by sv_report_used() for each live SV */ |
379 | ||
380 | static void | |
acfe0abc | 381 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
382 | { |
383 | if (SvTYPE(sv) != SVTYPEMASK) { | |
384 | PerlIO_printf(Perl_debug_log, "****\n"); | |
385 | sv_dump(sv); | |
386 | } | |
387 | } | |
758a08c3 | 388 | #endif |
645c22ef DM |
389 | |
390 | /* | |
391 | =for apidoc sv_report_used | |
392 | ||
393 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
394 | ||
395 | =cut | |
396 | */ | |
397 | ||
8990e307 | 398 | void |
864dbfa3 | 399 | Perl_sv_report_used(pTHX) |
4561caa4 | 400 | { |
ff270d3a | 401 | #ifdef DEBUGGING |
b035a42e | 402 | visit(do_report_used, 0, 0); |
ff270d3a | 403 | #endif |
4561caa4 CS |
404 | } |
405 | ||
645c22ef DM |
406 | /* called by sv_clean_objs() for each live SV */ |
407 | ||
408 | static void | |
acfe0abc | 409 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
410 | { |
411 | SV* rv; | |
412 | ||
413 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
414 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
415 | if (SvWEAKREF(sv)) { | |
416 | sv_del_backref(sv); | |
417 | SvWEAKREF_off(sv); | |
a8dc4fe8 | 418 | SvRV_set(sv, NULL); |
645c22ef DM |
419 | } else { |
420 | SvROK_off(sv); | |
a8dc4fe8 | 421 | SvRV_set(sv, NULL); |
645c22ef DM |
422 | SvREFCNT_dec(rv); |
423 | } | |
424 | } | |
425 | ||
426 | /* XXX Might want to check arrays, etc. */ | |
427 | } | |
428 | ||
429 | /* called by sv_clean_objs() for each live SV */ | |
430 | ||
431 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
432 | static void | |
acfe0abc | 433 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
434 | { |
435 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
83fd6193 NC |
436 | if (( |
437 | #ifdef PERL_DONT_CREATE_GVSV | |
438 | GvSV(sv) && | |
439 | #endif | |
440 | SvOBJECT(GvSV(sv))) || | |
645c22ef DM |
441 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || |
442 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
443 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
444 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
445 | { | |
446 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
1f26b251 | 447 | SvFLAGS(sv) |= SVf_BREAK; |
645c22ef DM |
448 | SvREFCNT_dec(sv); |
449 | } | |
450 | } | |
451 | } | |
452 | #endif | |
453 | ||
454 | /* | |
455 | =for apidoc sv_clean_objs | |
456 | ||
457 | Attempt to destroy all objects not yet freed | |
458 | ||
459 | =cut | |
460 | */ | |
461 | ||
4561caa4 | 462 | void |
864dbfa3 | 463 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 464 | { |
3280af22 | 465 | PL_in_clean_objs = TRUE; |
b035a42e | 466 | visit(do_clean_objs, SVf_ROK, SVf_ROK); |
4561caa4 | 467 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 468 | /* some barnacles may yet remain, clinging to typeglobs */ |
b035a42e | 469 | visit(do_clean_named_objs, SVt_PVGV, SVTYPEMASK); |
4561caa4 | 470 | #endif |
3280af22 | 471 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
472 | } |
473 | ||
645c22ef DM |
474 | /* called by sv_clean_all() for each live SV */ |
475 | ||
476 | static void | |
acfe0abc | 477 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
478 | { |
479 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
480 | SvFLAGS(sv) |= SVf_BREAK; | |
481 | SvREFCNT_dec(sv); | |
482 | } | |
483 | ||
484 | /* | |
485 | =for apidoc sv_clean_all | |
486 | ||
487 | Decrement the refcnt of each remaining SV, possibly triggering a | |
488 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 489 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
490 | |
491 | =cut | |
492 | */ | |
493 | ||
5226ed68 | 494 | I32 |
864dbfa3 | 495 | Perl_sv_clean_all(pTHX) |
8990e307 | 496 | { |
5226ed68 | 497 | I32 cleaned; |
3280af22 | 498 | PL_in_clean_all = TRUE; |
b035a42e | 499 | cleaned = visit(do_clean_all, 0,0); |
3280af22 | 500 | PL_in_clean_all = FALSE; |
5226ed68 | 501 | return cleaned; |
8990e307 | 502 | } |
463ee0b2 | 503 | |
645c22ef DM |
504 | /* |
505 | =for apidoc sv_free_arenas | |
506 | ||
507 | Deallocate the memory used by all arenas. Note that all the individual SV | |
508 | heads and bodies within the arenas must already have been freed. | |
509 | ||
510 | =cut | |
511 | */ | |
512 | ||
4633a7c4 | 513 | void |
864dbfa3 | 514 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
515 | { |
516 | SV* sva; | |
517 | SV* svanext; | |
612f20c3 | 518 | XPV *arena, *arenanext; |
4633a7c4 LW |
519 | |
520 | /* Free arenas here, but be careful about fake ones. (We assume | |
521 | contiguity of the fake ones with the corresponding real ones.) */ | |
522 | ||
3280af22 | 523 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
524 | svanext = (SV*) SvANY(sva); |
525 | while (svanext && SvFAKE(svanext)) | |
526 | svanext = (SV*) SvANY(svanext); | |
527 | ||
528 | if (!SvFAKE(sva)) | |
228fe6e6 | 529 | Safefree(sva); |
4633a7c4 | 530 | } |
5f05dabc | 531 | |
612f20c3 GS |
532 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
533 | arenanext = (XPV*)arena->xpv_pv; | |
534 | Safefree(arena); | |
535 | } | |
536 | PL_xiv_arenaroot = 0; | |
d5aea225 | 537 | PL_xiv_root = 0; |
612f20c3 GS |
538 | |
539 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
540 | arenanext = (XPV*)arena->xpv_pv; | |
541 | Safefree(arena); | |
542 | } | |
543 | PL_xnv_arenaroot = 0; | |
d5aea225 | 544 | PL_xnv_root = 0; |
612f20c3 GS |
545 | |
546 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
547 | arenanext = (XPV*)arena->xpv_pv; | |
548 | Safefree(arena); | |
549 | } | |
550 | PL_xrv_arenaroot = 0; | |
d5aea225 | 551 | PL_xrv_root = 0; |
612f20c3 GS |
552 | |
553 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
554 | arenanext = (XPV*)arena->xpv_pv; | |
555 | Safefree(arena); | |
556 | } | |
557 | PL_xpv_arenaroot = 0; | |
d5aea225 | 558 | PL_xpv_root = 0; |
612f20c3 GS |
559 | |
560 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
561 | arenanext = (XPV*)arena->xpv_pv; | |
562 | Safefree(arena); | |
563 | } | |
564 | PL_xpviv_arenaroot = 0; | |
d5aea225 | 565 | PL_xpviv_root = 0; |
612f20c3 GS |
566 | |
567 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
568 | arenanext = (XPV*)arena->xpv_pv; | |
569 | Safefree(arena); | |
570 | } | |
571 | PL_xpvnv_arenaroot = 0; | |
d5aea225 | 572 | PL_xpvnv_root = 0; |
612f20c3 GS |
573 | |
574 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
575 | arenanext = (XPV*)arena->xpv_pv; | |
576 | Safefree(arena); | |
577 | } | |
578 | PL_xpvcv_arenaroot = 0; | |
d5aea225 | 579 | PL_xpvcv_root = 0; |
612f20c3 GS |
580 | |
581 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
582 | arenanext = (XPV*)arena->xpv_pv; | |
583 | Safefree(arena); | |
584 | } | |
585 | PL_xpvav_arenaroot = 0; | |
d5aea225 | 586 | PL_xpvav_root = 0; |
612f20c3 GS |
587 | |
588 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
589 | arenanext = (XPV*)arena->xpv_pv; | |
590 | Safefree(arena); | |
591 | } | |
592 | PL_xpvhv_arenaroot = 0; | |
d5aea225 | 593 | PL_xpvhv_root = 0; |
612f20c3 GS |
594 | |
595 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
596 | arenanext = (XPV*)arena->xpv_pv; | |
597 | Safefree(arena); | |
598 | } | |
599 | PL_xpvmg_arenaroot = 0; | |
d5aea225 | 600 | PL_xpvmg_root = 0; |
612f20c3 | 601 | |
69ddb3b9 NC |
602 | for (arena = (XPV*)PL_xpvgv_arenaroot; arena; arena = arenanext) { |
603 | arenanext = (XPV*)arena->xpv_pv; | |
604 | Safefree(arena); | |
605 | } | |
606 | PL_xpvgv_arenaroot = 0; | |
607 | PL_xpvgv_root = 0; | |
608 | ||
612f20c3 GS |
609 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { |
610 | arenanext = (XPV*)arena->xpv_pv; | |
611 | Safefree(arena); | |
612 | } | |
613 | PL_xpvlv_arenaroot = 0; | |
d5aea225 | 614 | PL_xpvlv_root = 0; |
612f20c3 GS |
615 | |
616 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
617 | arenanext = (XPV*)arena->xpv_pv; | |
618 | Safefree(arena); | |
619 | } | |
620 | PL_xpvbm_arenaroot = 0; | |
d5aea225 | 621 | PL_xpvbm_root = 0; |
612f20c3 GS |
622 | |
623 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
624 | arenanext = (XPV*)arena->xpv_pv; | |
625 | Safefree(arena); | |
626 | } | |
627 | PL_he_arenaroot = 0; | |
d5aea225 | 628 | PL_he_root = 0; |
612f20c3 | 629 | |
72c9d3b6 NC |
630 | #if defined(USE_ITHREADS) |
631 | for (arena = (XPV*)PL_pte_arenaroot; arena; arena = arenanext) { | |
632 | arenanext = (XPV*)arena->xpv_pv; | |
633 | Safefree(arena); | |
634 | } | |
635 | PL_pte_arenaroot = 0; | |
636 | PL_pte_root = 0; | |
637 | #endif | |
638 | ||
4c58c75a | 639 | Safefree(PL_nice_chunk); |
3280af22 NIS |
640 | PL_nice_chunk = Nullch; |
641 | PL_nice_chunk_size = 0; | |
642 | PL_sv_arenaroot = 0; | |
643 | PL_sv_root = 0; | |
4633a7c4 LW |
644 | } |
645 | ||
645c22ef DM |
646 | /* |
647 | =for apidoc report_uninit | |
648 | ||
649 | Print appropriate "Use of uninitialized variable" warning | |
650 | ||
651 | =cut | |
652 | */ | |
653 | ||
1d7c1841 GS |
654 | void |
655 | Perl_report_uninit(pTHX) | |
656 | { | |
657 | if (PL_op) | |
9014280d | 658 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
53e06cf0 | 659 | " in ", OP_DESC(PL_op)); |
1d7c1841 | 660 | else |
9014280d | 661 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, "", ""); |
1d7c1841 GS |
662 | } |
663 | ||
645c22ef | 664 | |
69ddb3b9 | 665 | /* allocate another arena's worth of struct xrv */ |
645c22ef | 666 | |
76e3520e | 667 | STATIC void |
69ddb3b9 | 668 | S_more_xrv(pTHX) |
463ee0b2 | 669 | { |
69ddb3b9 NC |
670 | XRV* xrv; |
671 | XRV* xrvend; | |
672 | XPV *ptr; | |
673 | New(712, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
674 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
675 | PL_xrv_arenaroot = ptr; | |
676 | ||
677 | xrv = (XRV*) ptr; | |
678 | xrvend = &xrv[PERL_ARENA_SIZE / sizeof(XRV) - 1]; | |
679 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; | |
680 | PL_xrv_root = xrv; | |
681 | while (xrv < xrvend) { | |
682 | xrv->xrv_rv = (SV*)(xrv + 1); | |
683 | xrv++; | |
684 | } | |
685 | xrv->xrv_rv = 0; | |
463ee0b2 LW |
686 | } |
687 | ||
645c22ef DM |
688 | /* allocate another arena's worth of IV bodies */ |
689 | ||
cbe51380 | 690 | STATIC void |
cea2e8a9 | 691 | S_more_xiv(pTHX) |
463ee0b2 | 692 | { |
69ddb3b9 NC |
693 | IV* xiv; |
694 | IV* xivend; | |
8c52afec | 695 | XPV* ptr; |
72c9d3b6 | 696 | New(705, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); |
645c22ef | 697 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 698 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 699 | |
ea7c11a3 | 700 | xiv = (IV*) ptr; |
72c9d3b6 | 701 | xivend = &xiv[PERL_ARENA_SIZE / sizeof(IV) - 1]; |
645c22ef | 702 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 703 | PL_xiv_root = xiv; |
463ee0b2 | 704 | while (xiv < xivend) { |
ea7c11a3 | 705 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
706 | xiv++; |
707 | } | |
ea7c11a3 | 708 | *(IV**)xiv = 0; |
463ee0b2 LW |
709 | } |
710 | ||
69ddb3b9 | 711 | /* allocate another arena's worth of NV bodies */ |
645c22ef | 712 | |
69ddb3b9 NC |
713 | STATIC void |
714 | S_more_xnv(pTHX) | |
463ee0b2 | 715 | { |
65202027 | 716 | NV* xnv; |
69ddb3b9 NC |
717 | NV* xnvend; |
718 | XPV *ptr; | |
719 | New(711, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
720 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
721 | PL_xnv_arenaroot = ptr; | |
722 | ||
723 | xnv = (NV*) ptr; | |
724 | xnvend = &xnv[PERL_ARENA_SIZE / sizeof(NV) - 1]; | |
725 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
726 | PL_xnv_root = xnv; | |
727 | while (xnv < xnvend) { | |
728 | *(NV**)xnv = (NV*)(xnv + 1); | |
729 | xnv++; | |
730 | } | |
731 | *(NV**)xnv = 0; | |
463ee0b2 LW |
732 | } |
733 | ||
69ddb3b9 | 734 | /* allocate another arena's worth of struct xpv */ |
645c22ef | 735 | |
76e3520e | 736 | STATIC void |
69ddb3b9 | 737 | S_more_xpv(pTHX) |
463ee0b2 | 738 | { |
69ddb3b9 NC |
739 | XPV* xpv; |
740 | XPV* xpvend; | |
741 | New(713, xpv, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
742 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
743 | PL_xpv_arenaroot = xpv; | |
744 | ||
745 | xpvend = &xpv[PERL_ARENA_SIZE / sizeof(XPV) - 1]; | |
746 | PL_xpv_root = ++xpv; | |
747 | while (xpv < xpvend) { | |
748 | xpv->xpv_pv = (char*)(xpv + 1); | |
749 | xpv++; | |
750 | } | |
751 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
752 | } |
753 | ||
69ddb3b9 | 754 | /* allocate another arena's worth of struct xpviv */ |
645c22ef | 755 | |
cbe51380 | 756 | STATIC void |
69ddb3b9 | 757 | S_more_xpviv(pTHX) |
463ee0b2 | 758 | { |
69ddb3b9 NC |
759 | XPVIV* xpviv; |
760 | XPVIV* xpvivend; | |
761 | New(714, xpviv, PERL_ARENA_SIZE/sizeof(XPVIV), XPVIV); | |
762 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
763 | PL_xpviv_arenaroot = xpviv; | |
764 | ||
765 | xpvivend = &xpviv[PERL_ARENA_SIZE / sizeof(XPVIV) - 1]; | |
766 | PL_xpviv_root = ++xpviv; | |
767 | while (xpviv < xpvivend) { | |
768 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
769 | xpviv++; | |
770 | } | |
771 | xpviv->xpv_pv = 0; | |
772 | } | |
773 | ||
774 | /* allocate another arena's worth of struct xpvnv */ | |
775 | ||
776 | STATIC void | |
777 | S_more_xpvnv(pTHX) | |
778 | { | |
779 | XPVNV* xpvnv; | |
780 | XPVNV* xpvnvend; | |
781 | New(715, xpvnv, PERL_ARENA_SIZE/sizeof(XPVNV), XPVNV); | |
782 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
783 | PL_xpvnv_arenaroot = xpvnv; | |
784 | ||
785 | xpvnvend = &xpvnv[PERL_ARENA_SIZE / sizeof(XPVNV) - 1]; | |
786 | PL_xpvnv_root = ++xpvnv; | |
787 | while (xpvnv < xpvnvend) { | |
788 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
789 | xpvnv++; | |
790 | } | |
791 | xpvnv->xpv_pv = 0; | |
792 | } | |
793 | ||
794 | /* allocate another arena's worth of struct xpvcv */ | |
795 | ||
796 | STATIC void | |
797 | S_more_xpvcv(pTHX) | |
798 | { | |
799 | XPVCV* xpvcv; | |
800 | XPVCV* xpvcvend; | |
801 | New(716, xpvcv, PERL_ARENA_SIZE/sizeof(XPVCV), XPVCV); | |
802 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
803 | PL_xpvcv_arenaroot = xpvcv; | |
804 | ||
805 | xpvcvend = &xpvcv[PERL_ARENA_SIZE / sizeof(XPVCV) - 1]; | |
806 | PL_xpvcv_root = ++xpvcv; | |
807 | while (xpvcv < xpvcvend) { | |
808 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
809 | xpvcv++; | |
810 | } | |
811 | xpvcv->xpv_pv = 0; | |
812 | } | |
813 | ||
814 | /* allocate another arena's worth of struct xpvav */ | |
815 | ||
816 | STATIC void | |
817 | S_more_xpvav(pTHX) | |
818 | { | |
819 | XPVAV* xpvav; | |
820 | XPVAV* xpvavend; | |
821 | New(717, xpvav, PERL_ARENA_SIZE/sizeof(XPVAV), XPVAV); | |
822 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
823 | PL_xpvav_arenaroot = xpvav; | |
824 | ||
825 | xpvavend = &xpvav[PERL_ARENA_SIZE / sizeof(XPVAV) - 1]; | |
826 | PL_xpvav_root = ++xpvav; | |
827 | while (xpvav < xpvavend) { | |
828 | xpvav->xav_array = (char*)(xpvav + 1); | |
829 | xpvav++; | |
830 | } | |
831 | xpvav->xav_array = 0; | |
832 | } | |
833 | ||
834 | /* allocate another arena's worth of struct xpvhv */ | |
835 | ||
836 | STATIC void | |
837 | S_more_xpvhv(pTHX) | |
838 | { | |
839 | XPVHV* xpvhv; | |
840 | XPVHV* xpvhvend; | |
841 | New(718, xpvhv, PERL_ARENA_SIZE/sizeof(XPVHV), XPVHV); | |
842 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
843 | PL_xpvhv_arenaroot = xpvhv; | |
844 | ||
845 | xpvhvend = &xpvhv[PERL_ARENA_SIZE / sizeof(XPVHV) - 1]; | |
846 | PL_xpvhv_root = ++xpvhv; | |
847 | while (xpvhv < xpvhvend) { | |
848 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
849 | xpvhv++; | |
850 | } | |
851 | xpvhv->xhv_array = 0; | |
852 | } | |
853 | ||
854 | /* allocate another arena's worth of struct xpvmg */ | |
855 | ||
856 | STATIC void | |
857 | S_more_xpvmg(pTHX) | |
858 | { | |
859 | XPVMG* xpvmg; | |
860 | XPVMG* xpvmgend; | |
861 | New(719, xpvmg, PERL_ARENA_SIZE/sizeof(XPVMG), XPVMG); | |
862 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
863 | PL_xpvmg_arenaroot = xpvmg; | |
864 | ||
865 | xpvmgend = &xpvmg[PERL_ARENA_SIZE / sizeof(XPVMG) - 1]; | |
866 | PL_xpvmg_root = ++xpvmg; | |
867 | while (xpvmg < xpvmgend) { | |
868 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
869 | xpvmg++; | |
870 | } | |
871 | xpvmg->xpv_pv = 0; | |
872 | } | |
873 | ||
874 | /* allocate another arena's worth of struct xpvgv */ | |
875 | ||
876 | STATIC void | |
877 | S_more_xpvgv(pTHX) | |
878 | { | |
879 | XPVGV* xpvgv; | |
880 | XPVGV* xpvgvend; | |
881 | New(720, xpvgv, PERL_ARENA_SIZE/sizeof(XPVGV), XPVGV); | |
882 | xpvgv->xpv_pv = (char*)PL_xpvgv_arenaroot; | |
883 | PL_xpvgv_arenaroot = xpvgv; | |
884 | ||
885 | xpvgvend = &xpvgv[PERL_ARENA_SIZE / sizeof(XPVGV) - 1]; | |
886 | PL_xpvgv_root = ++xpvgv; | |
887 | while (xpvgv < xpvgvend) { | |
888 | xpvgv->xpv_pv = (char*)(xpvgv + 1); | |
889 | xpvgv++; | |
890 | } | |
891 | xpvgv->xpv_pv = 0; | |
892 | } | |
893 | ||
894 | /* allocate another arena's worth of struct xpvlv */ | |
895 | ||
896 | STATIC void | |
897 | S_more_xpvlv(pTHX) | |
898 | { | |
899 | XPVLV* xpvlv; | |
900 | XPVLV* xpvlvend; | |
901 | New(720, xpvlv, PERL_ARENA_SIZE/sizeof(XPVLV), XPVLV); | |
902 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
903 | PL_xpvlv_arenaroot = xpvlv; | |
904 | ||
905 | xpvlvend = &xpvlv[PERL_ARENA_SIZE / sizeof(XPVLV) - 1]; | |
906 | PL_xpvlv_root = ++xpvlv; | |
907 | while (xpvlv < xpvlvend) { | |
908 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
909 | xpvlv++; | |
910 | } | |
911 | xpvlv->xpv_pv = 0; | |
912 | } | |
913 | ||
914 | /* allocate another arena's worth of struct xpvbm */ | |
915 | ||
916 | STATIC void | |
917 | S_more_xpvbm(pTHX) | |
918 | { | |
919 | XPVBM* xpvbm; | |
920 | XPVBM* xpvbmend; | |
921 | New(721, xpvbm, PERL_ARENA_SIZE/sizeof(XPVBM), XPVBM); | |
922 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
923 | PL_xpvbm_arenaroot = xpvbm; | |
612f20c3 | 924 | |
69ddb3b9 NC |
925 | xpvbmend = &xpvbm[PERL_ARENA_SIZE / sizeof(XPVBM) - 1]; |
926 | PL_xpvbm_root = ++xpvbm; | |
927 | while (xpvbm < xpvbmend) { | |
928 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
929 | xpvbm++; | |
463ee0b2 | 930 | } |
69ddb3b9 | 931 | xpvbm->xpv_pv = 0; |
463ee0b2 LW |
932 | } |
933 | ||
645c22ef DM |
934 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
935 | ||
76e3520e | 936 | STATIC XRV* |
cea2e8a9 | 937 | S_new_xrv(pTHX) |
ed6116ce LW |
938 | { |
939 | XRV* xrv; | |
cbe51380 GS |
940 | LOCK_SV_MUTEX; |
941 | if (!PL_xrv_root) | |
69ddb3b9 | 942 | S_more_xrv(aTHX); |
cbe51380 GS |
943 | xrv = PL_xrv_root; |
944 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
945 | UNLOCK_SV_MUTEX; | |
946 | return xrv; | |
ed6116ce LW |
947 | } |
948 | ||
645c22ef DM |
949 | /* return a struct xrv to the free list */ |
950 | ||
76e3520e | 951 | STATIC void |
cea2e8a9 | 952 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 953 | { |
cbe51380 | 954 | LOCK_SV_MUTEX; |
3280af22 NIS |
955 | p->xrv_rv = (SV*)PL_xrv_root; |
956 | PL_xrv_root = p; | |
cbe51380 | 957 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
958 | } |
959 | ||
69ddb3b9 NC |
960 | /* grab a new IV body from the free list, allocating more if necessary */ |
961 | ||
962 | STATIC XPVIV* | |
963 | S_new_xiv(pTHX) | |
964 | { | |
965 | IV* xiv; | |
966 | LOCK_SV_MUTEX; | |
967 | if (!PL_xiv_root) | |
968 | S_more_xiv(aTHX); | |
969 | xiv = PL_xiv_root; | |
970 | /* | |
971 | * See comment in more_xiv() -- RAM. | |
972 | */ | |
973 | PL_xiv_root = *(IV**)xiv; | |
974 | UNLOCK_SV_MUTEX; | |
975 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
976 | } | |
977 | ||
978 | /* return an IV body to the free list */ | |
645c22ef | 979 | |
cbe51380 | 980 | STATIC void |
69ddb3b9 | 981 | S_del_xiv(pTHX_ XPVIV *p) |
ed6116ce | 982 | { |
69ddb3b9 NC |
983 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
984 | LOCK_SV_MUTEX; | |
985 | *(IV**)xiv = PL_xiv_root; | |
986 | PL_xiv_root = xiv; | |
987 | UNLOCK_SV_MUTEX; | |
988 | } | |
612f20c3 | 989 | |
69ddb3b9 NC |
990 | /* grab a new NV body from the free list, allocating more if necessary */ |
991 | ||
992 | STATIC XPVNV* | |
993 | S_new_xnv(pTHX) | |
994 | { | |
995 | NV* xnv; | |
996 | LOCK_SV_MUTEX; | |
997 | if (!PL_xnv_root) | |
998 | S_more_xnv(aTHX); | |
999 | xnv = PL_xnv_root; | |
1000 | PL_xnv_root = *(NV**)xnv; | |
1001 | UNLOCK_SV_MUTEX; | |
1002 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
1003 | } | |
1004 | ||
1005 | /* return an NV body to the free list */ | |
1006 | ||
1007 | STATIC void | |
1008 | S_del_xnv(pTHX_ XPVNV *p) | |
1009 | { | |
1010 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); | |
1011 | LOCK_SV_MUTEX; | |
1012 | *(NV**)xnv = PL_xnv_root; | |
1013 | PL_xnv_root = xnv; | |
1014 | UNLOCK_SV_MUTEX; | |
ed6116ce LW |
1015 | } |
1016 | ||
645c22ef DM |
1017 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
1018 | ||
76e3520e | 1019 | STATIC XPV* |
cea2e8a9 | 1020 | S_new_xpv(pTHX) |
463ee0b2 LW |
1021 | { |
1022 | XPV* xpv; | |
cbe51380 GS |
1023 | LOCK_SV_MUTEX; |
1024 | if (!PL_xpv_root) | |
69ddb3b9 | 1025 | S_more_xpv(aTHX); |
cbe51380 GS |
1026 | xpv = PL_xpv_root; |
1027 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
1028 | UNLOCK_SV_MUTEX; | |
1029 | return xpv; | |
463ee0b2 LW |
1030 | } |
1031 | ||
645c22ef DM |
1032 | /* return a struct xpv to the free list */ |
1033 | ||
76e3520e | 1034 | STATIC void |
cea2e8a9 | 1035 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 1036 | { |
cbe51380 | 1037 | LOCK_SV_MUTEX; |
3280af22 NIS |
1038 | p->xpv_pv = (char*)PL_xpv_root; |
1039 | PL_xpv_root = p; | |
cbe51380 | 1040 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
1041 | } |
1042 | ||
645c22ef DM |
1043 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
1044 | ||
932e9ff9 VB |
1045 | STATIC XPVIV* |
1046 | S_new_xpviv(pTHX) | |
1047 | { | |
1048 | XPVIV* xpviv; | |
1049 | LOCK_SV_MUTEX; | |
1050 | if (!PL_xpviv_root) | |
69ddb3b9 | 1051 | S_more_xpviv(aTHX); |
932e9ff9 VB |
1052 | xpviv = PL_xpviv_root; |
1053 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
1054 | UNLOCK_SV_MUTEX; | |
1055 | return xpviv; | |
1056 | } | |
1057 | ||
645c22ef DM |
1058 | /* return a struct xpviv to the free list */ |
1059 | ||
932e9ff9 VB |
1060 | STATIC void |
1061 | S_del_xpviv(pTHX_ XPVIV *p) | |
1062 | { | |
1063 | LOCK_SV_MUTEX; | |
1064 | p->xpv_pv = (char*)PL_xpviv_root; | |
1065 | PL_xpviv_root = p; | |
1066 | UNLOCK_SV_MUTEX; | |
1067 | } | |
1068 | ||
645c22ef DM |
1069 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
1070 | ||
932e9ff9 VB |
1071 | STATIC XPVNV* |
1072 | S_new_xpvnv(pTHX) | |
1073 | { | |
1074 | XPVNV* xpvnv; | |
1075 | LOCK_SV_MUTEX; | |
1076 | if (!PL_xpvnv_root) | |
69ddb3b9 | 1077 | S_more_xpvnv(aTHX); |
932e9ff9 VB |
1078 | xpvnv = PL_xpvnv_root; |
1079 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
1080 | UNLOCK_SV_MUTEX; | |
1081 | return xpvnv; | |
1082 | } | |
1083 | ||
645c22ef DM |
1084 | /* return a struct xpvnv to the free list */ |
1085 | ||
932e9ff9 VB |
1086 | STATIC void |
1087 | S_del_xpvnv(pTHX_ XPVNV *p) | |
1088 | { | |
1089 | LOCK_SV_MUTEX; | |
1090 | p->xpv_pv = (char*)PL_xpvnv_root; | |
1091 | PL_xpvnv_root = p; | |
1092 | UNLOCK_SV_MUTEX; | |
1093 | } | |
1094 | ||
645c22ef DM |
1095 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
1096 | ||
932e9ff9 VB |
1097 | STATIC XPVCV* |
1098 | S_new_xpvcv(pTHX) | |
1099 | { | |
1100 | XPVCV* xpvcv; | |
1101 | LOCK_SV_MUTEX; | |
1102 | if (!PL_xpvcv_root) | |
69ddb3b9 | 1103 | S_more_xpvcv(aTHX); |
932e9ff9 VB |
1104 | xpvcv = PL_xpvcv_root; |
1105 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
1106 | UNLOCK_SV_MUTEX; | |
1107 | return xpvcv; | |
1108 | } | |
1109 | ||
645c22ef DM |
1110 | /* return a struct xpvcv to the free list */ |
1111 | ||
932e9ff9 VB |
1112 | STATIC void |
1113 | S_del_xpvcv(pTHX_ XPVCV *p) | |
1114 | { | |
1115 | LOCK_SV_MUTEX; | |
1116 | p->xpv_pv = (char*)PL_xpvcv_root; | |
1117 | PL_xpvcv_root = p; | |
1118 | UNLOCK_SV_MUTEX; | |
1119 | } | |
1120 | ||
645c22ef DM |
1121 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
1122 | ||
932e9ff9 VB |
1123 | STATIC XPVAV* |
1124 | S_new_xpvav(pTHX) | |
1125 | { | |
1126 | XPVAV* xpvav; | |
1127 | LOCK_SV_MUTEX; | |
1128 | if (!PL_xpvav_root) | |
69ddb3b9 | 1129 | S_more_xpvav(aTHX); |
932e9ff9 VB |
1130 | xpvav = PL_xpvav_root; |
1131 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
1132 | UNLOCK_SV_MUTEX; | |
1133 | return xpvav; | |
1134 | } | |
1135 | ||
645c22ef DM |
1136 | /* return a struct xpvav to the free list */ |
1137 | ||
932e9ff9 VB |
1138 | STATIC void |
1139 | S_del_xpvav(pTHX_ XPVAV *p) | |
1140 | { | |
1141 | LOCK_SV_MUTEX; | |
1142 | p->xav_array = (char*)PL_xpvav_root; | |
1143 | PL_xpvav_root = p; | |
1144 | UNLOCK_SV_MUTEX; | |
1145 | } | |
1146 | ||
645c22ef DM |
1147 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
1148 | ||
932e9ff9 VB |
1149 | STATIC XPVHV* |
1150 | S_new_xpvhv(pTHX) | |
1151 | { | |
1152 | XPVHV* xpvhv; | |
1153 | LOCK_SV_MUTEX; | |
1154 | if (!PL_xpvhv_root) | |
69ddb3b9 | 1155 | S_more_xpvhv(aTHX); |
932e9ff9 VB |
1156 | xpvhv = PL_xpvhv_root; |
1157 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
1158 | UNLOCK_SV_MUTEX; | |
1159 | return xpvhv; | |
1160 | } | |
1161 | ||
645c22ef DM |
1162 | /* return a struct xpvhv to the free list */ |
1163 | ||
932e9ff9 VB |
1164 | STATIC void |
1165 | S_del_xpvhv(pTHX_ XPVHV *p) | |
1166 | { | |
1167 | LOCK_SV_MUTEX; | |
1168 | p->xhv_array = (char*)PL_xpvhv_root; | |
1169 | PL_xpvhv_root = p; | |
1170 | UNLOCK_SV_MUTEX; | |
1171 | } | |
1172 | ||
645c22ef DM |
1173 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
1174 | ||
932e9ff9 VB |
1175 | STATIC XPVMG* |
1176 | S_new_xpvmg(pTHX) | |
1177 | { | |
1178 | XPVMG* xpvmg; | |
1179 | LOCK_SV_MUTEX; | |
1180 | if (!PL_xpvmg_root) | |
69ddb3b9 | 1181 | S_more_xpvmg(aTHX); |
932e9ff9 VB |
1182 | xpvmg = PL_xpvmg_root; |
1183 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
1184 | UNLOCK_SV_MUTEX; | |
1185 | return xpvmg; | |
1186 | } | |
1187 | ||
645c22ef DM |
1188 | /* return a struct xpvmg to the free list */ |
1189 | ||
932e9ff9 VB |
1190 | STATIC void |
1191 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1192 | { | |
1193 | LOCK_SV_MUTEX; | |
1194 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1195 | PL_xpvmg_root = p; | |
1196 | UNLOCK_SV_MUTEX; | |
1197 | } | |
1198 | ||
69ddb3b9 | 1199 | /* grab a new struct xpvgv from the free list, allocating more if necessary */ |
645c22ef | 1200 | |
69ddb3b9 NC |
1201 | STATIC XPVGV* |
1202 | S_new_xpvgv(pTHX) | |
932e9ff9 | 1203 | { |
69ddb3b9 NC |
1204 | XPVGV* xpvgv; |
1205 | LOCK_SV_MUTEX; | |
1206 | if (!PL_xpvgv_root) | |
1207 | S_more_xpvgv(aTHX); | |
1208 | xpvgv = PL_xpvgv_root; | |
1209 | PL_xpvgv_root = (XPVGV*)xpvgv->xpv_pv; | |
1210 | UNLOCK_SV_MUTEX; | |
1211 | return xpvgv; | |
1212 | } | |
612f20c3 | 1213 | |
69ddb3b9 NC |
1214 | /* return a struct xpvgv to the free list */ |
1215 | ||
1216 | STATIC void | |
1217 | S_del_xpvgv(pTHX_ XPVGV *p) | |
1218 | { | |
1219 | LOCK_SV_MUTEX; | |
1220 | p->xpv_pv = (char*)PL_xpvgv_root; | |
1221 | PL_xpvgv_root = p; | |
1222 | UNLOCK_SV_MUTEX; | |
932e9ff9 VB |
1223 | } |
1224 | ||
645c22ef DM |
1225 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1226 | ||
932e9ff9 VB |
1227 | STATIC XPVLV* |
1228 | S_new_xpvlv(pTHX) | |
1229 | { | |
1230 | XPVLV* xpvlv; | |
1231 | LOCK_SV_MUTEX; | |
1232 | if (!PL_xpvlv_root) | |
69ddb3b9 | 1233 | S_more_xpvlv(aTHX); |
932e9ff9 VB |
1234 | xpvlv = PL_xpvlv_root; |
1235 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1236 | UNLOCK_SV_MUTEX; | |
1237 | return xpvlv; | |
1238 | } | |
1239 | ||
645c22ef DM |
1240 | /* return a struct xpvlv to the free list */ |
1241 | ||
932e9ff9 VB |
1242 | STATIC void |
1243 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1244 | { | |
1245 | LOCK_SV_MUTEX; | |
1246 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1247 | PL_xpvlv_root = p; | |
1248 | UNLOCK_SV_MUTEX; | |
1249 | } | |
1250 | ||
645c22ef DM |
1251 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1252 | ||
932e9ff9 VB |
1253 | STATIC XPVBM* |
1254 | S_new_xpvbm(pTHX) | |
1255 | { | |
1256 | XPVBM* xpvbm; | |
1257 | LOCK_SV_MUTEX; | |
1258 | if (!PL_xpvbm_root) | |
69ddb3b9 | 1259 | S_more_xpvbm(aTHX); |
932e9ff9 VB |
1260 | xpvbm = PL_xpvbm_root; |
1261 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1262 | UNLOCK_SV_MUTEX; | |
1263 | return xpvbm; | |
1264 | } | |
1265 | ||
645c22ef DM |
1266 | /* return a struct xpvbm to the free list */ |
1267 | ||
932e9ff9 VB |
1268 | STATIC void |
1269 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1270 | { | |
1271 | LOCK_SV_MUTEX; | |
1272 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1273 | PL_xpvbm_root = p; | |
1274 | UNLOCK_SV_MUTEX; | |
1275 | } | |
1276 | ||
2fe0f101 JH |
1277 | #define my_safemalloc(s) (void*)safemalloc(s) |
1278 | #define my_safefree(p) safefree((char*)p) | |
463ee0b2 | 1279 | |
d33b2eba | 1280 | #ifdef PURIFY |
463ee0b2 | 1281 | |
d33b2eba GS |
1282 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1283 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1284 | |
d33b2eba GS |
1285 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1286 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1287 | |
d33b2eba GS |
1288 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1289 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1290 | |
d33b2eba GS |
1291 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1292 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1293 | |
d33b2eba GS |
1294 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1295 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1296 | |
d33b2eba GS |
1297 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1298 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1299 | |
d33b2eba GS |
1300 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1301 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1302 | |
d33b2eba GS |
1303 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1304 | #define del_XPVAV(p) my_safefree(p) | |
1305 | ||
1306 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1307 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1308 | |
d33b2eba GS |
1309 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1310 | #define del_XPVMG(p) my_safefree(p) | |
1311 | ||
69ddb3b9 NC |
1312 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1313 | #define del_XPVGV(p) my_safefree(p) | |
1314 | ||
d33b2eba GS |
1315 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) |
1316 | #define del_XPVLV(p) my_safefree(p) | |
1317 | ||
1318 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1319 | #define del_XPVBM(p) my_safefree(p) | |
1320 | ||
1321 | #else /* !PURIFY */ | |
1322 | ||
1323 | #define new_XIV() (void*)new_xiv() | |
1324 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1325 | ||
1326 | #define new_XNV() (void*)new_xnv() | |
1327 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1328 | |
d33b2eba GS |
1329 | #define new_XRV() (void*)new_xrv() |
1330 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1331 | |
d33b2eba GS |
1332 | #define new_XPV() (void*)new_xpv() |
1333 | #define del_XPV(p) del_xpv((XPV *)p) | |
1334 | ||
1335 | #define new_XPVIV() (void*)new_xpviv() | |
1336 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1337 | ||
1338 | #define new_XPVNV() (void*)new_xpvnv() | |
1339 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1340 | ||
1341 | #define new_XPVCV() (void*)new_xpvcv() | |
1342 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1343 | ||
1344 | #define new_XPVAV() (void*)new_xpvav() | |
1345 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1346 | ||
1347 | #define new_XPVHV() (void*)new_xpvhv() | |
1348 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1349 | |
d33b2eba GS |
1350 | #define new_XPVMG() (void*)new_xpvmg() |
1351 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1352 | ||
69ddb3b9 NC |
1353 | #define new_XPVGV() (void*)new_xpvgv() |
1354 | #define del_XPVGV(p) del_xpvgv((XPVGV *)p) | |
1355 | ||
d33b2eba GS |
1356 | #define new_XPVLV() (void*)new_xpvlv() |
1357 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1358 | ||
1359 | #define new_XPVBM() (void*)new_xpvbm() | |
1360 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1361 | ||
1362 | #endif /* PURIFY */ | |
9b94d1dd | 1363 | |
d33b2eba GS |
1364 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1365 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1366 | |
d33b2eba GS |
1367 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1368 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1369 | |
954c1994 GS |
1370 | /* |
1371 | =for apidoc sv_upgrade | |
1372 | ||
ff276b08 | 1373 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1374 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1375 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1376 | |
1377 | =cut | |
1378 | */ | |
1379 | ||
79072805 | 1380 | bool |
864dbfa3 | 1381 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1382 | { |
1cb3760b | 1383 | |
9081f4f7 NC |
1384 | char* pv; |
1385 | U32 cur; | |
1386 | U32 len; | |
1387 | IV iv; | |
1388 | NV nv; | |
1389 | MAGIC* magic; | |
1390 | HV* stash; | |
79072805 | 1391 | |
f130fd45 NIS |
1392 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1393 | sv_force_normal(sv); | |
1394 | } | |
1395 | ||
79072805 LW |
1396 | if (SvTYPE(sv) == mt) |
1397 | return TRUE; | |
1398 | ||
a5f75d66 AD |
1399 | if (mt < SVt_PVIV) |
1400 | (void)SvOOK_off(sv); | |
1401 | ||
9081f4f7 NC |
1402 | pv = NULL; |
1403 | cur = 0; | |
1404 | len = 0; | |
1405 | iv = 0; | |
1406 | nv = 0.0; | |
1407 | magic = NULL; | |
1408 | stash = Nullhv; | |
1409 | ||
79072805 LW |
1410 | switch (SvTYPE(sv)) { |
1411 | case SVt_NULL: | |
79072805 | 1412 | break; |
79072805 | 1413 | case SVt_IV: |
463ee0b2 | 1414 | iv = SvIVX(sv); |
79072805 | 1415 | del_XIV(SvANY(sv)); |
ed6116ce | 1416 | if (mt == SVt_NV) |
463ee0b2 | 1417 | mt = SVt_PVNV; |
ed6116ce LW |
1418 | else if (mt < SVt_PVIV) |
1419 | mt = SVt_PVIV; | |
79072805 LW |
1420 | break; |
1421 | case SVt_NV: | |
463ee0b2 | 1422 | nv = SvNVX(sv); |
79072805 | 1423 | del_XNV(SvANY(sv)); |
ed6116ce | 1424 | if (mt < SVt_PVNV) |
79072805 LW |
1425 | mt = SVt_PVNV; |
1426 | break; | |
ed6116ce LW |
1427 | case SVt_RV: |
1428 | pv = (char*)SvRV(sv); | |
ed6116ce | 1429 | del_XRV(SvANY(sv)); |
ed6116ce | 1430 | break; |
79072805 | 1431 | case SVt_PV: |
287c580e | 1432 | pv = SvPVX_mutable(sv); |
79072805 LW |
1433 | cur = SvCUR(sv); |
1434 | len = SvLEN(sv); | |
79072805 | 1435 | del_XPV(SvANY(sv)); |
748a9306 LW |
1436 | if (mt <= SVt_IV) |
1437 | mt = SVt_PVIV; | |
1438 | else if (mt == SVt_NV) | |
1439 | mt = SVt_PVNV; | |
79072805 LW |
1440 | break; |
1441 | case SVt_PVIV: | |
287c580e | 1442 | pv = SvPVX_mutable(sv); |
79072805 LW |
1443 | cur = SvCUR(sv); |
1444 | len = SvLEN(sv); | |
463ee0b2 | 1445 | iv = SvIVX(sv); |
79072805 LW |
1446 | del_XPVIV(SvANY(sv)); |
1447 | break; | |
1448 | case SVt_PVNV: | |
287c580e | 1449 | pv = SvPVX_mutable(sv); |
79072805 LW |
1450 | cur = SvCUR(sv); |
1451 | len = SvLEN(sv); | |
463ee0b2 LW |
1452 | iv = SvIVX(sv); |
1453 | nv = SvNVX(sv); | |
79072805 LW |
1454 | del_XPVNV(SvANY(sv)); |
1455 | break; | |
1456 | case SVt_PVMG: | |
2a8de9e2 AL |
1457 | /* Because the XPVMG of PL_mess_sv isn't allocated from the arena, |
1458 | there's no way that it can be safely upgraded, because perl.c | |
1459 | expects to Safefree(SvANY(PL_mess_sv)) */ | |
1460 | assert(sv != PL_mess_sv); | |
2098fb77 NC |
1461 | /* This flag bit is used to mean other things in other scalar types. |
1462 | Given that it only has meaning inside the pad, it shouldn't be set | |
1463 | on anything that can get upgraded. */ | |
1464 | assert((SvFLAGS(sv) & SVpad_TYPED) == 0); | |
287c580e | 1465 | pv = SvPVX_mutable(sv); |
79072805 LW |
1466 | cur = SvCUR(sv); |
1467 | len = SvLEN(sv); | |
463ee0b2 LW |
1468 | iv = SvIVX(sv); |
1469 | nv = SvNVX(sv); | |
79072805 LW |
1470 | magic = SvMAGIC(sv); |
1471 | stash = SvSTASH(sv); | |
1472 | del_XPVMG(SvANY(sv)); | |
1473 | break; | |
1474 | default: | |
cea2e8a9 | 1475 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1476 | } |
1477 | ||
0da6cfda SP |
1478 | SvFLAGS(sv) &= ~SVTYPEMASK; |
1479 | SvFLAGS(sv) |= mt; | |
1480 | ||
79072805 LW |
1481 | switch (mt) { |
1482 | case SVt_NULL: | |
cea2e8a9 | 1483 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1484 | case SVt_IV: |
1485 | SvANY(sv) = new_XIV(); | |
0da6cfda | 1486 | SvIV_set(sv, iv); |
79072805 LW |
1487 | break; |
1488 | case SVt_NV: | |
1489 | SvANY(sv) = new_XNV(); | |
0da6cfda | 1490 | SvNV_set(sv, nv); |
79072805 | 1491 | break; |
ed6116ce LW |
1492 | case SVt_RV: |
1493 | SvANY(sv) = new_XRV(); | |
a8dc4fe8 | 1494 | SvRV_set(sv, (SV*)pv); |
ed6116ce | 1495 | break; |
79072805 LW |
1496 | case SVt_PV: |
1497 | SvANY(sv) = new_XPV(); | |
0da6cfda | 1498 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1499 | SvCUR_set(sv, cur); |
1500 | SvLEN_set(sv, len); | |
79072805 LW |
1501 | break; |
1502 | case SVt_PVIV: | |
1503 | SvANY(sv) = new_XPVIV(); | |
0da6cfda | 1504 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1505 | SvCUR_set(sv, cur); |
1506 | SvLEN_set(sv, len); | |
0da6cfda | 1507 | SvIV_set(sv, iv); |
79072805 | 1508 | if (SvNIOK(sv)) |
a0d0e21e | 1509 | (void)SvIOK_on(sv); |
79072805 LW |
1510 | SvNOK_off(sv); |
1511 | break; | |
1512 | case SVt_PVNV: | |
1513 | SvANY(sv) = new_XPVNV(); | |
0da6cfda | 1514 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1515 | SvCUR_set(sv, cur); |
1516 | SvLEN_set(sv, len); | |
0da6cfda SP |
1517 | SvIV_set(sv, iv); |
1518 | SvNV_set(sv, nv); | |
79072805 LW |
1519 | break; |
1520 | case SVt_PVMG: | |
1521 | SvANY(sv) = new_XPVMG(); | |
0da6cfda | 1522 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1523 | SvCUR_set(sv, cur); |
1524 | SvLEN_set(sv, len); | |
0da6cfda SP |
1525 | SvIV_set(sv, iv); |
1526 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1527 | SvMAGIC_set(sv, magic); |
1528 | SvSTASH_set(sv, stash); | |
79072805 LW |
1529 | break; |
1530 | case SVt_PVLV: | |
1531 | SvANY(sv) = new_XPVLV(); | |
0da6cfda | 1532 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1533 | SvCUR_set(sv, cur); |
1534 | SvLEN_set(sv, len); | |
0da6cfda SP |
1535 | SvIV_set(sv, iv); |
1536 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1537 | SvMAGIC_set(sv, magic); |
1538 | SvSTASH_set(sv, stash); | |
79072805 LW |
1539 | LvTARGOFF(sv) = 0; |
1540 | LvTARGLEN(sv) = 0; | |
1541 | LvTARG(sv) = 0; | |
1542 | LvTYPE(sv) = 0; | |
1543 | break; | |
1544 | case SVt_PVAV: | |
1545 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1546 | if (pv) |
1547 | Safefree(pv); | |
0da6cfda | 1548 | SvPV_set(sv, (char*)0); |
d1bf51dd | 1549 | AvMAX(sv) = -1; |
93965878 | 1550 | AvFILLp(sv) = -1; |
0da6cfda SP |
1551 | SvIV_set(sv, 0); |
1552 | SvNV_set(sv, 0.0); | |
a8dc4fe8 SP |
1553 | SvMAGIC_set(sv, magic); |
1554 | SvSTASH_set(sv, stash); | |
463ee0b2 | 1555 | AvALLOC(sv) = 0; |
79072805 | 1556 | AvARYLEN(sv) = 0; |
1cb3760b | 1557 | AvFLAGS(sv) = AVf_REAL; |
79072805 LW |
1558 | break; |
1559 | case SVt_PVHV: | |
1560 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1561 | if (pv) |
1562 | Safefree(pv); | |
0da6cfda | 1563 | SvPV_set(sv, (char*)0); |
463ee0b2 LW |
1564 | HvFILL(sv) = 0; |
1565 | HvMAX(sv) = 0; | |
8aacddc1 | 1566 | HvTOTALKEYS(sv) = 0; |
c3f2d5da | 1567 | HvPLACEHOLDERS_set(sv, 0); |
a8dc4fe8 SP |
1568 | SvMAGIC_set(sv, magic); |
1569 | SvSTASH_set(sv, stash); | |
79072805 LW |
1570 | HvRITER(sv) = 0; |
1571 | HvEITER(sv) = 0; | |
1572 | HvPMROOT(sv) = 0; | |
1573 | HvNAME(sv) = 0; | |
79072805 LW |
1574 | break; |
1575 | case SVt_PVCV: | |
1576 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1577 | Zero(SvANY(sv), 1, XPVCV); |
0da6cfda | 1578 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1579 | SvCUR_set(sv, cur); |
1580 | SvLEN_set(sv, len); | |
0da6cfda SP |
1581 | SvIV_set(sv, iv); |
1582 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1583 | SvMAGIC_set(sv, magic); |
1584 | SvSTASH_set(sv, stash); | |
79072805 LW |
1585 | break; |
1586 | case SVt_PVGV: | |
1587 | SvANY(sv) = new_XPVGV(); | |
0da6cfda | 1588 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1589 | SvCUR_set(sv, cur); |
1590 | SvLEN_set(sv, len); | |
0da6cfda SP |
1591 | SvIV_set(sv, iv); |
1592 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1593 | SvMAGIC_set(sv, magic); |
1594 | SvSTASH_set(sv, stash); | |
93a17b20 | 1595 | GvGP(sv) = 0; |
79072805 LW |
1596 | GvNAME(sv) = 0; |
1597 | GvNAMELEN(sv) = 0; | |
1598 | GvSTASH(sv) = 0; | |
a5f75d66 | 1599 | GvFLAGS(sv) = 0; |
79072805 LW |
1600 | break; |
1601 | case SVt_PVBM: | |
1602 | SvANY(sv) = new_XPVBM(); | |
0da6cfda | 1603 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1604 | SvCUR_set(sv, cur); |
1605 | SvLEN_set(sv, len); | |
0da6cfda SP |
1606 | SvIV_set(sv, iv); |
1607 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1608 | SvMAGIC_set(sv, magic); |
1609 | SvSTASH_set(sv, stash); | |
79072805 LW |
1610 | BmRARE(sv) = 0; |
1611 | BmUSEFUL(sv) = 0; | |
1612 | BmPREVIOUS(sv) = 0; | |
1613 | break; | |
1614 | case SVt_PVFM: | |
1615 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1616 | Zero(SvANY(sv), 1, XPVFM); |
0da6cfda | 1617 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1618 | SvCUR_set(sv, cur); |
1619 | SvLEN_set(sv, len); | |
0da6cfda SP |
1620 | SvIV_set(sv, iv); |
1621 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1622 | SvMAGIC_set(sv, magic); |
1623 | SvSTASH_set(sv, stash); | |
79072805 | 1624 | break; |
8990e307 LW |
1625 | case SVt_PVIO: |
1626 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1627 | Zero(SvANY(sv), 1, XPVIO); |
0da6cfda | 1628 | SvPV_set(sv, pv); |
a8dc4fe8 SP |
1629 | SvCUR_set(sv, cur); |
1630 | SvLEN_set(sv, len); | |
0da6cfda SP |
1631 | SvIV_set(sv, iv); |
1632 | SvNV_set(sv, nv); | |
a8dc4fe8 SP |
1633 | SvMAGIC_set(sv, magic); |
1634 | SvSTASH_set(sv, stash); | |
85e6fe83 | 1635 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1636 | break; |
1637 | } | |
79072805 LW |
1638 | return TRUE; |
1639 | } | |
1640 | ||
645c22ef DM |
1641 | /* |
1642 | =for apidoc sv_backoff | |
1643 | ||
1644 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1645 | wrapper instead. | |
1646 | ||
1647 | =cut | |
1648 | */ | |
1649 | ||
79072805 | 1650 | int |
864dbfa3 | 1651 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1652 | { |
1653 | assert(SvOOK(sv)); | |
463ee0b2 | 1654 | if (SvIVX(sv)) { |
0188be2e | 1655 | const char * const s = SvPVX_const(sv); |
a8dc4fe8 | 1656 | SvLEN_set(sv, SvLEN(sv) + SvIVX(sv)); |
0da6cfda | 1657 | SvPV_set(sv, SvPVX(sv) - SvIVX(sv)); |
79072805 | 1658 | SvIV_set(sv, 0); |
463ee0b2 | 1659 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1660 | } |
1661 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1662 | return 0; |
79072805 LW |
1663 | } |
1664 | ||
954c1994 GS |
1665 | /* |
1666 | =for apidoc sv_grow | |
1667 | ||
645c22ef DM |
1668 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1669 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1670 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1671 | |
1672 | =cut | |
1673 | */ | |
1674 | ||
79072805 | 1675 | char * |
864dbfa3 | 1676 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1677 | { |
1678 | register char *s; | |
1679 | ||
54f0641b NIS |
1680 | |
1681 | ||
55497cff | 1682 | #ifdef HAS_64K_LIMIT |
79072805 | 1683 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1684 | PerlIO_printf(Perl_debug_log, |
1685 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1686 | my_exit(1); |
1687 | } | |
55497cff | 1688 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1689 | if (SvROK(sv)) |
1690 | sv_unref(sv); | |
79072805 LW |
1691 | if (SvTYPE(sv) < SVt_PV) { |
1692 | sv_upgrade(sv, SVt_PV); | |
23c2bb70 | 1693 | s = SvPVX_mutable(sv); |
79072805 LW |
1694 | } |
1695 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1696 | sv_backoff(sv); | |
23c2bb70 | 1697 | s = SvPVX_mutable(sv); |
79072805 LW |
1698 | if (newlen > SvLEN(sv)) |
1699 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1700 | #ifdef HAS_64K_LIMIT |
1701 | if (newlen >= 0x10000) | |
1702 | newlen = 0xFFFF; | |
1703 | #endif | |
79072805 LW |
1704 | } |
1705 | else | |
287c580e | 1706 | s = SvPVX_mutable(sv); |
54f0641b | 1707 | |
79072805 | 1708 | if (newlen > SvLEN(sv)) { /* need more room? */ |
9eaeeaca | 1709 | newlen = PERL_STRLEN_ROUNDUP(newlen); |
8d6dde3e | 1710 | if (SvLEN(sv) && s) { |
2fe0f101 | 1711 | #ifdef MYMALLOC |
23c2bb70 | 1712 | const STRLEN l = malloced_size((void*)SvPVX_const(sv)); |
8d6dde3e IZ |
1713 | if (newlen <= l) { |
1714 | SvLEN_set(sv, l); | |
1715 | return s; | |
1716 | } else | |
c70c8a0a | 1717 | #endif |
9eaeeaca | 1718 | s = saferealloc(s, newlen); |
8d6dde3e | 1719 | } |
a00f3e00 | 1720 | else { |
ee5f0761 AMS |
1721 | /* sv_force_normal_flags() must not try to unshare the new |
1722 | PVX we allocate below. AMS 20010713 */ | |
4e83176d | 1723 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
4e83176d AMS |
1724 | SvFAKE_off(sv); |
1725 | SvREADONLY_off(sv); | |
4e83176d | 1726 | } |
9eaeeaca | 1727 | s = safemalloc(newlen); |
fdac8c4b SP |
1728 | if (SvPVX_const(sv) && SvCUR(sv)) { |
1729 | Move(SvPVX_const(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); | |
40565179 | 1730 | } |
4e83176d | 1731 | } |
79072805 | 1732 | SvPV_set(sv, s); |
c05e0e2f | 1733 | SvLEN_set(sv, newlen); |
79072805 LW |
1734 | } |
1735 | return s; | |
1736 | } | |
1737 | ||
954c1994 GS |
1738 | /* |
1739 | =for apidoc sv_setiv | |
1740 | ||
645c22ef DM |
1741 | Copies an integer into the given SV, upgrading first if necessary. |
1742 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1743 | |
1744 | =cut | |
1745 | */ | |
1746 | ||
79072805 | 1747 | void |
864dbfa3 | 1748 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1749 | { |
2213622d | 1750 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1751 | switch (SvTYPE(sv)) { |
1752 | case SVt_NULL: | |
79072805 | 1753 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1754 | break; |
1755 | case SVt_NV: | |
1756 | sv_upgrade(sv, SVt_PVNV); | |
1757 | break; | |
ed6116ce | 1758 | case SVt_RV: |
463ee0b2 | 1759 | case SVt_PV: |
79072805 | 1760 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1761 | break; |
a0d0e21e LW |
1762 | |
1763 | case SVt_PVGV: | |
a0d0e21e LW |
1764 | case SVt_PVAV: |
1765 | case SVt_PVHV: | |
1766 | case SVt_PVCV: | |
1767 | case SVt_PVFM: | |
1768 | case SVt_PVIO: | |
411caa50 | 1769 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1770 | OP_DESC(PL_op)); |
463ee0b2 | 1771 | } |
a0d0e21e | 1772 | (void)SvIOK_only(sv); /* validate number */ |
0da6cfda | 1773 | SvIV_set(sv, i); |
463ee0b2 | 1774 | SvTAINT(sv); |
79072805 LW |
1775 | } |
1776 | ||
954c1994 GS |
1777 | /* |
1778 | =for apidoc sv_setiv_mg | |
1779 | ||
1780 | Like C<sv_setiv>, but also handles 'set' magic. | |
1781 | ||
1782 | =cut | |
1783 | */ | |
1784 | ||
79072805 | 1785 | void |
864dbfa3 | 1786 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1787 | { |
1788 | sv_setiv(sv,i); | |
1789 | SvSETMAGIC(sv); | |
1790 | } | |
1791 | ||
954c1994 GS |
1792 | /* |
1793 | =for apidoc sv_setuv | |
1794 | ||
645c22ef DM |
1795 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1796 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1797 | |
1798 | =cut | |
1799 | */ | |
1800 | ||
ef50df4b | 1801 | void |
864dbfa3 | 1802 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1803 | { |
55ada374 NC |
1804 | /* With these two if statements: |
1805 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1806 | |
55ada374 NC |
1807 | without |
1808 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1809 | |
55ada374 NC |
1810 | If you wish to remove them, please benchmark to see what the effect is |
1811 | */ | |
28e5dec8 JH |
1812 | if (u <= (UV)IV_MAX) { |
1813 | sv_setiv(sv, (IV)u); | |
1814 | return; | |
1815 | } | |
25da4f38 IZ |
1816 | sv_setiv(sv, 0); |
1817 | SvIsUV_on(sv); | |
0da6cfda | 1818 | SvUV_set(sv, u); |
55497cff | 1819 | } |
1820 | ||
954c1994 GS |
1821 | /* |
1822 | =for apidoc sv_setuv_mg | |
1823 | ||
1824 | Like C<sv_setuv>, but also handles 'set' magic. | |
1825 | ||
1826 | =cut | |
1827 | */ | |
1828 | ||
55497cff | 1829 | void |
864dbfa3 | 1830 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1831 | { |
55ada374 NC |
1832 | /* With these two if statements: |
1833 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1834 | |
55ada374 NC |
1835 | without |
1836 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1837 | |
55ada374 NC |
1838 | If you wish to remove them, please benchmark to see what the effect is |
1839 | */ | |
28e5dec8 JH |
1840 | if (u <= (UV)IV_MAX) { |
1841 | sv_setiv(sv, (IV)u); | |
1842 | } else { | |
1843 | sv_setiv(sv, 0); | |
1844 | SvIsUV_on(sv); | |
1845 | sv_setuv(sv,u); | |
1846 | } | |
ef50df4b GS |
1847 | SvSETMAGIC(sv); |
1848 | } | |
1849 | ||
954c1994 GS |
1850 | /* |
1851 | =for apidoc sv_setnv | |
1852 | ||
645c22ef DM |
1853 | Copies a double into the given SV, upgrading first if necessary. |
1854 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1855 | |
1856 | =cut | |
1857 | */ | |
1858 | ||
ef50df4b | 1859 | void |
65202027 | 1860 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1861 | { |
2213622d | 1862 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1863 | switch (SvTYPE(sv)) { |
1864 | case SVt_NULL: | |
1865 | case SVt_IV: | |
79072805 | 1866 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1867 | break; |
a0d0e21e LW |
1868 | case SVt_RV: |
1869 | case SVt_PV: | |
1870 | case SVt_PVIV: | |
79072805 | 1871 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1872 | break; |
827b7e14 | 1873 | |
a0d0e21e | 1874 | case SVt_PVGV: |
a0d0e21e LW |
1875 | case SVt_PVAV: |
1876 | case SVt_PVHV: | |
1877 | case SVt_PVCV: | |
1878 | case SVt_PVFM: | |
1879 | case SVt_PVIO: | |
411caa50 | 1880 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1881 | OP_NAME(PL_op)); |
79072805 | 1882 | } |
0da6cfda | 1883 | SvNV_set(sv, num); |
a0d0e21e | 1884 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1885 | SvTAINT(sv); |
79072805 LW |
1886 | } |
1887 | ||
954c1994 GS |
1888 | /* |
1889 | =for apidoc sv_setnv_mg | |
1890 | ||
1891 | Like C<sv_setnv>, but also handles 'set' magic. | |
1892 | ||
1893 | =cut | |
1894 | */ | |
1895 | ||
ef50df4b | 1896 | void |
65202027 | 1897 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1898 | { |
1899 | sv_setnv(sv,num); | |
1900 | SvSETMAGIC(sv); | |
1901 | } | |
1902 | ||
645c22ef DM |
1903 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1904 | * printable version of the offending string | |
1905 | */ | |
1906 | ||
76e3520e | 1907 | STATIC void |
cea2e8a9 | 1908 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1909 | { |
94463019 JH |
1910 | SV *dsv; |
1911 | char tmpbuf[64]; | |
ce7d4f40 | 1912 | const char *pv; |
94463019 JH |
1913 | |
1914 | if (DO_UTF8(sv)) { | |
4c58c75a | 1915 | dsv = sv_2mortal(newSVpvn("", 0)); |
94463019 JH |
1916 | pv = sv_uni_display(dsv, sv, 10, 0); |
1917 | } else { | |
1918 | char *d = tmpbuf; | |
1919 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1920 | /* each *s can expand to 4 chars + "...\0", | |
1921 | i.e. need room for 8 chars */ | |
ecdeb87c | 1922 | |
c06c673c NC |
1923 | const char *s, *end; |
1924 | for (s = SvPVX_const(sv), end = s + SvCUR(sv); s < end && d < limit; | |
1925 | s++) { | |
94463019 JH |
1926 | int ch = *s & 0xFF; |
1927 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1928 | *d++ = 'M'; | |
1929 | *d++ = '-'; | |
1930 | ch &= 127; | |
1931 | } | |
1932 | if (ch == '\n') { | |
1933 | *d++ = '\\'; | |
1934 | *d++ = 'n'; | |
1935 | } | |
1936 | else if (ch == '\r') { | |
1937 | *d++ = '\\'; | |
1938 | *d++ = 'r'; | |
1939 | } | |
1940 | else if (ch == '\f') { | |
1941 | *d++ = '\\'; | |
1942 | *d++ = 'f'; | |
1943 | } | |
1944 | else if (ch == '\\') { | |
1945 | *d++ = '\\'; | |
1946 | *d++ = '\\'; | |
1947 | } | |
1948 | else if (ch == '\0') { | |
1949 | *d++ = '\\'; | |
1950 | *d++ = '0'; | |
1951 | } | |
1952 | else if (isPRINT_LC(ch)) | |
1953 | *d++ = ch; | |
1954 | else { | |
1955 | *d++ = '^'; | |
1956 | *d++ = toCTRL(ch); | |
1957 | } | |
1958 | } | |
1959 | if (s < end) { | |
1960 | *d++ = '.'; | |
1961 | *d++ = '.'; | |
1962 | *d++ = '.'; | |
1963 | } | |
1964 | *d = '\0'; | |
1965 | pv = tmpbuf; | |
a0d0e21e | 1966 | } |
a0d0e21e | 1967 | |
533c011a | 1968 | if (PL_op) |
9014280d | 1969 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1970 | "Argument \"%s\" isn't numeric in %s", pv, |
1971 | OP_DESC(PL_op)); | |
a0d0e21e | 1972 | else |
9014280d | 1973 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1974 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1975 | } |
1976 | ||
c2988b20 NC |
1977 | /* |
1978 | =for apidoc looks_like_number | |
1979 | ||
645c22ef DM |
1980 | Test if the content of an SV looks like a number (or is a number). |
1981 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1982 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1983 | |
1984 | =cut | |
1985 | */ | |
1986 | ||
1987 | I32 | |
1988 | Perl_looks_like_number(pTHX_ SV *sv) | |
1989 | { | |
8c18bf38 | 1990 | register const char *sbegin; |
c2988b20 NC |
1991 | STRLEN len; |
1992 | ||
1993 | if (SvPOK(sv)) { | |
fdac8c4b | 1994 | sbegin = SvPVX_const(sv); |
c2988b20 NC |
1995 | len = SvCUR(sv); |
1996 | } | |
1997 | else if (SvPOKp(sv)) | |
c06c673c | 1998 | sbegin = SvPV_const(sv, len); |
c2988b20 | 1999 | else |
fc3d430d | 2000 | return SvFLAGS(sv) & (SVf_NOK|SVp_NOK|SVf_IOK|SVp_IOK); |
c2988b20 NC |
2001 | return grok_number(sbegin, len, NULL); |
2002 | } | |
25da4f38 IZ |
2003 | |
2004 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
2005 | until proven guilty, assume that things are not that bad... */ | |
2006 | ||
645c22ef DM |
2007 | /* |
2008 | NV_PRESERVES_UV: | |
2009 | ||
2010 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
2011 | an IV (an assumption perl has been based on to date) it becomes necessary |
2012 | to remove the assumption that the NV always carries enough precision to | |
2013 | recreate the IV whenever needed, and that the NV is the canonical form. | |
2014 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 2015 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
2016 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
2017 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
2018 | conversion where precision was lost and IV/UV/NV slots that have a | |
2019 | valid conversion which has lost no precision | |
645c22ef | 2020 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
2021 | would lose precision, the precise conversion (or differently |
2022 | imprecise conversion) is also performed and cached, to prevent | |
2023 | requests for different numeric formats on the same SV causing | |
2024 | lossy conversion chains. (lossless conversion chains are perfectly | |
2025 | acceptable (still)) | |
2026 | ||
2027 | ||
2028 | flags are used: | |
2029 | SvIOKp is true if the IV slot contains a valid value | |
2030 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
2031 | SvNOKp is true if the NV slot contains a valid value | |
2032 | SvNOK is true only if the NV value is accurate | |
2033 | ||
2034 | so | |
645c22ef | 2035 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
2036 | IV(or UV) would lose accuracy over a direct conversion from PV to |
2037 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
2038 | SV as IOK NOKp (ie not NOK). | |
2039 | ||
645c22ef | 2040 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
2041 | NV would lose accuracy over a direct conversion from PV to NV. If it |
2042 | would, cache both conversions, flag similarly. | |
2043 | ||
2044 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
2045 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
2046 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
2047 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 2048 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 2049 | |
645c22ef DM |
2050 | The benefit of this is that operations such as pp_add know that if |
2051 | SvIOK is true for both left and right operands, then integer addition | |
2052 | can be used instead of floating point (for cases where the result won't | |
2053 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
2054 | loss of precision compared with integer addition. |
2055 | ||
2056 | * making IV and NV equal status should make maths accurate on 64 bit | |
2057 | platforms | |
2058 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 2059 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
2060 | looking for SvIOK and checking for overflow will not outweigh the |
2061 | fp to integer speedup) | |
2062 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
2063 | values, as the change from SvIOK to SvIOKp will cause a call into | |
2064 | sv_2iv each time rather than a macro access direct to the IV slot | |
2065 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 2066 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
2067 | |
2068 | #################################################################### | |
645c22ef DM |
2069 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
2070 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
2071 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
2072 | #################################################################### |
2073 | ||
645c22ef | 2074 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
2075 | performance ratio. |
2076 | */ | |
2077 | ||
2078 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
2079 | # define IS_NUMBER_UNDERFLOW_IV 1 |
2080 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
2081 | # define IS_NUMBER_IV_AND_UV 2 | |
2082 | # define IS_NUMBER_OVERFLOW_IV 4 | |
2083 | # define IS_NUMBER_OVERFLOW_UV 5 | |
2084 | ||
2085 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
2086 | |
2087 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
2088 | STATIC int | |
645c22ef | 2089 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 2090 | { |
fdac8c4b | 2091 | 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 |
2092 | if (SvNVX(sv) < (NV)IV_MIN) { |
2093 | (void)SvIOKp_on(sv); | |
2094 | (void)SvNOK_on(sv); | |
0da6cfda | 2095 | SvIV_set(sv, IV_MIN); |
28e5dec8 JH |
2096 | return IS_NUMBER_UNDERFLOW_IV; |
2097 | } | |
2098 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2099 | (void)SvIOKp_on(sv); | |
2100 | (void)SvNOK_on(sv); | |
2101 | SvIsUV_on(sv); | |
0da6cfda | 2102 | SvUV_set(sv, UV_MAX); |
28e5dec8 JH |
2103 | return IS_NUMBER_OVERFLOW_UV; |
2104 | } | |
c2988b20 NC |
2105 | (void)SvIOKp_on(sv); |
2106 | (void)SvNOK_on(sv); | |
2107 | /* Can't use strtol etc to convert this string. (See truth table in | |
2108 | sv_2iv */ | |
2109 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
0da6cfda | 2110 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2111 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2112 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
2113 | } else { | |
2114 | /* Integer is imprecise. NOK, IOKp */ | |
2115 | } | |
2116 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
2117 | } | |
2118 | SvIsUV_on(sv); | |
0da6cfda | 2119 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2120 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { |
2121 | if (SvUVX(sv) == UV_MAX) { | |
2122 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
2123 | possibly be preserved by NV. Hence, it must be overflow. | |
2124 | NOK, IOKp */ | |
2125 | return IS_NUMBER_OVERFLOW_UV; | |
2126 | } | |
2127 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
2128 | } else { | |
2129 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 2130 | } |
c2988b20 | 2131 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 2132 | } |
645c22ef DM |
2133 | #endif /* !NV_PRESERVES_UV*/ |
2134 | ||
2135 | /* | |
2136 | =for apidoc sv_2iv | |
2137 | ||
2138 | Return the integer value of an SV, doing any necessary string conversion, | |
2139 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
2140 | ||
2141 | =cut | |
2142 | */ | |
28e5dec8 | 2143 | |
a0d0e21e | 2144 | IV |
864dbfa3 | 2145 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2146 | { |
2147 | if (!sv) | |
2148 | return 0; | |
8990e307 | 2149 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2150 | mg_get(sv); |
2151 | if (SvIOKp(sv)) | |
2152 | return SvIVX(sv); | |
748a9306 | 2153 | if (SvNOKp(sv)) { |
25da4f38 | 2154 | return I_V(SvNVX(sv)); |
748a9306 | 2155 | } |
36477c24 | 2156 | if (SvPOKp(sv) && SvLEN(sv)) |
2157 | return asIV(sv); | |
3fe9a6f1 | 2158 | if (!SvROK(sv)) { |
d008e5eb | 2159 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2160 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2161 | report_uninit(); |
c6ee37c5 | 2162 | } |
36477c24 | 2163 | return 0; |
3fe9a6f1 | 2164 | } |
463ee0b2 | 2165 | } |
ed6116ce | 2166 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2167 | if (SvROK(sv)) { |
a0d0e21e | 2168 | SV* tmpstr; |
1554e226 | 2169 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2170 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2171 | return SvIV(tmpstr); |
56431972 | 2172 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2173 | } |
47deb5e7 NIS |
2174 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2175 | sv_force_normal(sv); | |
2176 | } | |
0336b60e | 2177 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2178 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2179 | report_uninit(); |
ed6116ce LW |
2180 | return 0; |
2181 | } | |
79072805 | 2182 | } |
25da4f38 IZ |
2183 | if (SvIOKp(sv)) { |
2184 | if (SvIsUV(sv)) { | |
2185 | return (IV)(SvUVX(sv)); | |
2186 | } | |
2187 | else { | |
2188 | return SvIVX(sv); | |
2189 | } | |
463ee0b2 | 2190 | } |
748a9306 | 2191 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2192 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2193 | * without also getting a cached IV/UV from it at the same time | |
2194 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2195 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2196 | |
2197 | if (SvTYPE(sv) == SVt_NV) | |
2198 | sv_upgrade(sv, SVt_PVNV); | |
2199 | ||
28e5dec8 JH |
2200 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2201 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2202 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2203 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2204 | cases go to UV */ | |
2205 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2206 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2207 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2208 | #ifndef NV_PRESERVES_UV | |
2209 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2210 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2211 | /* Don't flag it as "accurately an integer" if the number | |
2212 | came from a (by definition imprecise) NV operation, and | |
2213 | we're outside the range of NV integer precision */ | |
2214 | #endif | |
2215 | ) { | |
2216 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2217 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2218 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2219 | PTR2UV(sv), |
2220 | SvNVX(sv), | |
2221 | SvIVX(sv))); | |
2222 | ||
2223 | } else { | |
2224 | /* IV not precise. No need to convert from PV, as NV | |
2225 | conversion would already have cached IV if it detected | |
2226 | that PV->IV would be better than PV->NV->IV | |
2227 | flags already correct - don't set public IOK. */ | |
2228 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2229 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2230 | PTR2UV(sv), |
2231 | SvNVX(sv), | |
2232 | SvIVX(sv))); | |
2233 | } | |
2234 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2235 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2236 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2237 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2238 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2239 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2240 | Hopefully for 2s complement IV_MIN is something like | |
2241 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2242 | } |
25da4f38 | 2243 | else { |
0da6cfda | 2244 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2245 | if ( |
2246 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2247 | #ifndef NV_PRESERVES_UV | |
2248 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2249 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2250 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2251 | /* Don't flag it as "accurately an integer" if the number | |
2252 | came from a (by definition imprecise) NV operation, and | |
2253 | we're outside the range of NV integer precision */ | |
2254 | #endif | |
2255 | ) | |
2256 | SvIOK_on(sv); | |
25da4f38 IZ |
2257 | SvIsUV_on(sv); |
2258 | ret_iv_max: | |
1c846c1f | 2259 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2260 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2261 | PTR2UV(sv), |
57def98f JH |
2262 | SvUVX(sv), |
2263 | SvUVX(sv))); | |
25da4f38 IZ |
2264 | return (IV)SvUVX(sv); |
2265 | } | |
748a9306 LW |
2266 | } |
2267 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 | 2268 | UV value; |
547d29e4 | 2269 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
25da4f38 IZ |
2270 | /* We want to avoid a possible problem when we cache an IV which |
2271 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2272 | the same as the direct translation of the initial string |
2273 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2274 | be careful to ensure that the value with the .456 is around if the | |
2275 | NV value is requested in the future). | |
1c846c1f | 2276 | |
25da4f38 IZ |
2277 | This means that if we cache such an IV, we need to cache the |
2278 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2279 | cache the NV if we are sure it's not needed. |
25da4f38 | 2280 | */ |
16b7a9a4 | 2281 | |
c2988b20 NC |
2282 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2283 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2284 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2285 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2286 | if (SvTYPE(sv) < SVt_PVIV) |
2287 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2288 | (void)SvIOK_on(sv); |
c2988b20 NC |
2289 | } else if (SvTYPE(sv) < SVt_PVNV) |
2290 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2291 | |
c2988b20 NC |
2292 | /* If NV preserves UV then we only use the UV value if we know that |
2293 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2294 | then the value returned may have more precision than atof() will | |
2295 | return, even though value isn't perfectly accurate. */ | |
2296 | if ((numtype & (IS_NUMBER_IN_UV | |
2297 | #ifdef NV_PRESERVES_UV | |
2298 | | IS_NUMBER_NOT_INT | |
2299 | #endif | |
2300 | )) == IS_NUMBER_IN_UV) { | |
2301 | /* This won't turn off the public IOK flag if it was set above */ | |
2302 | (void)SvIOKp_on(sv); | |
2303 | ||
2304 | if (!(numtype & IS_NUMBER_NEG)) { | |
2305 | /* positive */; | |
2306 | if (value <= (UV)IV_MAX) { | |
0da6cfda | 2307 | SvIV_set(sv, (IV)value); |
c2988b20 | 2308 | } else { |
0da6cfda | 2309 | SvUV_set(sv, value); |
c2988b20 NC |
2310 | SvIsUV_on(sv); |
2311 | } | |
2312 | } else { | |
2313 | /* 2s complement assumption */ | |
2314 | if (value <= (UV)IV_MIN) { | |
0da6cfda | 2315 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2316 | } else { |
2317 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2318 | I'm assuming it will be rare. */ |
c2988b20 NC |
2319 | if (SvTYPE(sv) < SVt_PVNV) |
2320 | sv_upgrade(sv, SVt_PVNV); | |
2321 | SvNOK_on(sv); | |
2322 | SvIOK_off(sv); | |
2323 | SvIOKp_on(sv); | |
0da6cfda SP |
2324 | SvNV_set(sv, -(NV)value); |
2325 | SvIV_set(sv, IV_MIN); | |
c2988b20 NC |
2326 | } |
2327 | } | |
2328 | } | |
2329 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2330 | will be in the previous block to set the IV slot, and the next | |
2331 | block to set the NV slot. So no else here. */ | |
2332 | ||
2333 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2334 | != IS_NUMBER_IN_UV) { | |
2335 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
fdac8c4b | 2336 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 | 2337 | |
c2988b20 NC |
2338 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2339 | not_a_number(sv); | |
28e5dec8 | 2340 | |
65202027 | 2341 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2342 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2343 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2344 | #else |
1779d84d | 2345 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2346 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2347 | #endif |
28e5dec8 JH |
2348 | |
2349 | ||
2350 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2351 | (void)SvIOKp_on(sv); |
2352 | (void)SvNOK_on(sv); | |
2353 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2354 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2355 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2356 | SvIOK_on(sv); | |
28e5dec8 | 2357 | } else { |
c2988b20 NC |
2358 | /* Integer is imprecise. NOK, IOKp */ |
2359 | } | |
2360 | /* UV will not work better than IV */ | |
2361 | } else { | |
2362 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2363 | SvIsUV_on(sv); | |
2364 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
0da6cfda | 2365 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
2366 | SvIsUV_on(sv); |
2367 | } else { | |
0da6cfda | 2368 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2369 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ |
2370 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2371 | SvIOK_on(sv); | |
28e5dec8 JH |
2372 | SvIsUV_on(sv); |
2373 | } else { | |
c2988b20 NC |
2374 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2375 | SvIsUV_on(sv); | |
28e5dec8 | 2376 | } |
28e5dec8 | 2377 | } |
c2988b20 NC |
2378 | goto ret_iv_max; |
2379 | } | |
28e5dec8 | 2380 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2381 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2382 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2383 | /* The IV slot will have been set from value returned by | |
2384 | grok_number above. The NV slot has just been set using | |
2385 | Atof. */ | |
560b0c46 | 2386 | SvNOK_on(sv); |
c2988b20 NC |
2387 | assert (SvIOKp(sv)); |
2388 | } else { | |
2389 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2390 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2391 | /* Small enough to preserve all bits. */ | |
2392 | (void)SvIOKp_on(sv); | |
2393 | SvNOK_on(sv); | |
0da6cfda | 2394 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2395 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
2396 | SvIOK_on(sv); | |
2397 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2398 | this NV is in the preserved range, therefore: */ | |
2399 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2400 | < (UV)IV_MAX)) { | |
6b6e5432 | 2401 | 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 |
2402 | } |
2403 | } else { | |
2404 | /* IN_UV NOT_INT | |
2405 | 0 0 already failed to read UV. | |
2406 | 0 1 already failed to read UV. | |
2407 | 1 0 you won't get here in this case. IV/UV | |
2408 | slot set, public IOK, Atof() unneeded. | |
2409 | 1 1 already read UV. | |
2410 | so there's no point in sv_2iuv_non_preserve() attempting | |
2411 | to use atol, strtol, strtoul etc. */ | |
2412 | if (sv_2iuv_non_preserve (sv, numtype) | |
2413 | >= IS_NUMBER_OVERFLOW_IV) | |
2414 | goto ret_iv_max; | |
2415 | } | |
2416 | } | |
28e5dec8 | 2417 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2418 | } |
28e5dec8 | 2419 | } else { |
599cee73 | 2420 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2421 | report_uninit(); |
25da4f38 IZ |
2422 | if (SvTYPE(sv) < SVt_IV) |
2423 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2424 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2425 | return 0; |
79072805 | 2426 | } |
1d7c1841 GS |
2427 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2428 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2429 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2430 | } |
2431 | ||
645c22ef DM |
2432 | /* |
2433 | =for apidoc sv_2uv | |
2434 | ||
2435 | Return the unsigned integer value of an SV, doing any necessary string | |
2436 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2437 | macros. | |
2438 | ||
2439 | =cut | |
2440 | */ | |
2441 | ||
ff68c719 | 2442 | UV |
864dbfa3 | 2443 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2444 | { |
2445 | if (!sv) | |
2446 | return 0; | |
2447 | if (SvGMAGICAL(sv)) { | |
2448 | mg_get(sv); | |
2449 | if (SvIOKp(sv)) | |
2450 | return SvUVX(sv); | |
2451 | if (SvNOKp(sv)) | |
2452 | return U_V(SvNVX(sv)); | |
36477c24 | 2453 | if (SvPOKp(sv) && SvLEN(sv)) |
2454 | return asUV(sv); | |
3fe9a6f1 | 2455 | if (!SvROK(sv)) { |
d008e5eb | 2456 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2457 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2458 | report_uninit(); |
c6ee37c5 | 2459 | } |
36477c24 | 2460 | return 0; |
3fe9a6f1 | 2461 | } |
ff68c719 | 2462 | } |
2463 | if (SvTHINKFIRST(sv)) { | |
2464 | if (SvROK(sv)) { | |
ff68c719 | 2465 | SV* tmpstr; |
1554e226 | 2466 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2467 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2468 | return SvUV(tmpstr); |
56431972 | 2469 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2470 | } |
8a818333 NIS |
2471 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2472 | sv_force_normal(sv); | |
2473 | } | |
0336b60e | 2474 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2475 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2476 | report_uninit(); |
ff68c719 | 2477 | return 0; |
2478 | } | |
2479 | } | |
25da4f38 IZ |
2480 | if (SvIOKp(sv)) { |
2481 | if (SvIsUV(sv)) { | |
2482 | return SvUVX(sv); | |
2483 | } | |
2484 | else { | |
2485 | return (UV)SvIVX(sv); | |
2486 | } | |
ff68c719 | 2487 | } |
2488 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2489 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2490 | * without also getting a cached IV/UV from it at the same time | |
2491 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2492 | * IV or UV at same time to avoid this. */ | |
2493 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2494 | ||
25da4f38 IZ |
2495 | if (SvTYPE(sv) == SVt_NV) |
2496 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2497 | |
2498 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2499 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2500 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2501 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2502 | #ifndef NV_PRESERVES_UV | |
2503 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2504 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2505 | /* Don't flag it as "accurately an integer" if the number | |
2506 | came from a (by definition imprecise) NV operation, and | |
2507 | we're outside the range of NV integer precision */ | |
2508 | #endif | |
2509 | ) { | |
2510 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2511 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2512 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2513 | PTR2UV(sv), |
2514 | SvNVX(sv), | |
2515 | SvIVX(sv))); | |
2516 | ||
2517 | } else { | |
2518 | /* IV not precise. No need to convert from PV, as NV | |
2519 | conversion would already have cached IV if it detected | |
2520 | that PV->IV would be better than PV->NV->IV | |
2521 | flags already correct - don't set public IOK. */ | |
2522 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2523 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2524 | PTR2UV(sv), |
2525 | SvNVX(sv), | |
2526 | SvIVX(sv))); | |
2527 | } | |
2528 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2529 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2530 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2531 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2532 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2533 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2534 | Hopefully for 2s complement IV_MIN is something like | |
2535 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2536 | } |
28e5dec8 | 2537 | else { |
0da6cfda | 2538 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2539 | if ( |
2540 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2541 | #ifndef NV_PRESERVES_UV | |
2542 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2543 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2544 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2545 | /* Don't flag it as "accurately an integer" if the number | |
2546 | came from a (by definition imprecise) NV operation, and | |
2547 | we're outside the range of NV integer precision */ | |
2548 | #endif | |
2549 | ) | |
2550 | SvIOK_on(sv); | |
2551 | SvIsUV_on(sv); | |
1c846c1f | 2552 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2553 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2554 | PTR2UV(sv), |
28e5dec8 JH |
2555 | SvUVX(sv), |
2556 | SvUVX(sv))); | |
25da4f38 | 2557 | } |
ff68c719 | 2558 | } |
2559 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 | 2560 | UV value; |
547d29e4 | 2561 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
25da4f38 IZ |
2562 | |
2563 | /* We want to avoid a possible problem when we cache a UV which | |
2564 | may be later translated to an NV, and the resulting NV is not | |
2565 | the translation of the initial data. | |
1c846c1f | 2566 | |
25da4f38 IZ |
2567 | This means that if we cache such a UV, we need to cache the |
2568 | NV as well. Moreover, we trade speed for space, and do not | |
2569 | cache the NV if not needed. | |
2570 | */ | |
16b7a9a4 | 2571 | |
c2988b20 NC |
2572 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2573 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2574 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2575 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2576 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2577 | sv_upgrade(sv, SVt_PVIV); |
2578 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2579 | } else if (SvTYPE(sv) < SVt_PVNV) |
2580 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2581 | |
c2988b20 NC |
2582 | /* If NV preserves UV then we only use the UV value if we know that |
2583 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2584 | then the value returned may have more precision than atof() will | |
2585 | return, even though it isn't accurate. */ | |
2586 | if ((numtype & (IS_NUMBER_IN_UV | |
2587 | #ifdef NV_PRESERVES_UV | |
2588 | | IS_NUMBER_NOT_INT | |
2589 | #endif | |
2590 | )) == IS_NUMBER_IN_UV) { | |
2591 | /* This won't turn off the public IOK flag if it was set above */ | |
2592 | (void)SvIOKp_on(sv); | |
2593 | ||
2594 | if (!(numtype & IS_NUMBER_NEG)) { | |
2595 | /* positive */; | |
2596 | if (value <= (UV)IV_MAX) { | |
0da6cfda | 2597 | SvIV_set(sv, (IV)value); |
28e5dec8 JH |
2598 | } else { |
2599 | /* it didn't overflow, and it was positive. */ | |
0da6cfda | 2600 | SvUV_set(sv, value); |
28e5dec8 JH |
2601 | SvIsUV_on(sv); |
2602 | } | |
c2988b20 NC |
2603 | } else { |
2604 | /* 2s complement assumption */ | |
2605 | if (value <= (UV)IV_MIN) { | |
0da6cfda | 2606 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2607 | } else { |
2608 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2609 | I'm assuming it will be rare. */ |
c2988b20 NC |
2610 | if (SvTYPE(sv) < SVt_PVNV) |
2611 | sv_upgrade(sv, SVt_PVNV); | |
2612 | SvNOK_on(sv); | |
2613 | SvIOK_off(sv); | |
2614 | SvIOKp_on(sv); | |
0da6cfda SP |
2615 | SvNV_set(sv, -(NV)value); |
2616 | SvIV_set(sv, IV_MIN); | |
c2988b20 NC |
2617 | } |
2618 | } | |
2619 | } | |
2620 | ||
2621 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2622 | != IS_NUMBER_IN_UV) { | |
2623 | /* It wasn't an integer, or it overflowed the UV. */ | |
fdac8c4b | 2624 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 | 2625 | |
c2988b20 | 2626 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2627 | not_a_number(sv); |
2628 | ||
2629 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2630 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2631 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2632 | #else |
1779d84d | 2633 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2634 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2635 | #endif |
2636 | ||
2637 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2638 | (void)SvIOKp_on(sv); |
2639 | (void)SvNOK_on(sv); | |
2640 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
0da6cfda | 2641 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2642 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2643 | SvIOK_on(sv); | |
2644 | } else { | |
2645 | /* Integer is imprecise. NOK, IOKp */ | |
2646 | } | |
2647 | /* UV will not work better than IV */ | |
2648 | } else { | |
2649 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2650 | SvIsUV_on(sv); | |
2651 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
0da6cfda | 2652 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
2653 | SvIsUV_on(sv); |
2654 | } else { | |
0da6cfda | 2655 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2656 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs |
2657 | NV preservse UV so can do correct comparison. */ | |
2658 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2659 | SvIOK_on(sv); | |
2660 | SvIsUV_on(sv); | |
2661 | } else { | |
2662 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2663 | SvIsUV_on(sv); | |
2664 | } | |
2665 | } | |
2666 | } | |
28e5dec8 | 2667 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2668 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2669 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2670 | /* The UV slot will have been set from value returned by | |
2671 | grok_number above. The NV slot has just been set using | |
2672 | Atof. */ | |
560b0c46 | 2673 | SvNOK_on(sv); |
c2988b20 NC |
2674 | assert (SvIOKp(sv)); |
2675 | } else { | |
2676 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2677 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2678 | /* Small enough to preserve all bits. */ | |
2679 | (void)SvIOKp_on(sv); | |
2680 | SvNOK_on(sv); | |
0da6cfda | 2681 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2682 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
2683 | SvIOK_on(sv); | |
2684 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2685 | this NV is in the preserved range, therefore: */ | |
2686 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2687 | < (UV)IV_MAX)) { | |
6b6e5432 | 2688 | 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 |
2689 | } |
2690 | } else | |
2691 | sv_2iuv_non_preserve (sv, numtype); | |
2692 | } | |
28e5dec8 | 2693 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2694 | } |
ff68c719 | 2695 | } |
2696 | else { | |
d008e5eb | 2697 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2698 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2699 | report_uninit(); |
c6ee37c5 | 2700 | } |
25da4f38 IZ |
2701 | if (SvTYPE(sv) < SVt_IV) |
2702 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2703 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2704 | return 0; |
2705 | } | |
25da4f38 | 2706 | |
1d7c1841 GS |
2707 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2708 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2709 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2710 | } |
2711 | ||
645c22ef DM |
2712 | /* |
2713 | =for apidoc sv_2nv | |
2714 | ||
2715 | Return the num value of an SV, doing any necessary string or integer | |
2716 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2717 | macros. | |
2718 | ||
2719 | =cut | |
2720 | */ | |
2721 | ||
65202027 | 2722 | NV |
864dbfa3 | 2723 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2724 | { |
2725 | if (!sv) | |
2726 | return 0.0; | |
8990e307 | 2727 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2728 | mg_get(sv); |
2729 | if (SvNOKp(sv)) | |
2730 | return SvNVX(sv); | |
a0d0e21e | 2731 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 | 2732 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
547d29e4 | 2733 | !grok_number(SvPVX_const(sv), SvCUR(sv), NULL)) |
a0d0e21e | 2734 | not_a_number(sv); |
fdac8c4b | 2735 | return Atof(SvPVX_const(sv)); |
a0d0e21e | 2736 | } |
25da4f38 | 2737 | if (SvIOKp(sv)) { |
1c846c1f | 2738 | if (SvIsUV(sv)) |
65202027 | 2739 | return (NV)SvUVX(sv); |
25da4f38 | 2740 | else |
65202027 | 2741 | return (NV)SvIVX(sv); |
25da4f38 | 2742 | } |
16d20bd9 | 2743 | if (!SvROK(sv)) { |
d008e5eb | 2744 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2745 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2746 | report_uninit(); |
c6ee37c5 | 2747 | } |
4996ee04 | 2748 | return (NV)0; |
16d20bd9 | 2749 | } |
463ee0b2 | 2750 | } |
ed6116ce | 2751 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2752 | if (SvROK(sv)) { |
a0d0e21e | 2753 | SV* tmpstr; |
1554e226 | 2754 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2755 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2756 | return SvNV(tmpstr); |
56431972 | 2757 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2758 | } |
8a818333 NIS |
2759 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2760 | sv_force_normal(sv); | |
2761 | } | |
0336b60e | 2762 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2763 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2764 | report_uninit(); |
ed6116ce LW |
2765 | return 0.0; |
2766 | } | |
79072805 LW |
2767 | } |
2768 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2769 | if (SvTYPE(sv) == SVt_IV) |
2770 | sv_upgrade(sv, SVt_PVNV); | |
2771 | else | |
2772 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2773 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2774 | DEBUG_c({ |
f93f4e46 | 2775 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2776 | PerlIO_printf(Perl_debug_log, |
2777 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2778 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2779 | RESTORE_NUMERIC_LOCAL(); |
2780 | }); | |
65202027 | 2781 | #else |
572bbb43 | 2782 | DEBUG_c({ |
f93f4e46 | 2783 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2784 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2785 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2786 | RESTORE_NUMERIC_LOCAL(); |
2787 | }); | |
572bbb43 | 2788 | #endif |
79072805 LW |
2789 | } |
2790 | else if (SvTYPE(sv) < SVt_PVNV) | |
2791 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2792 | if (SvNOKp(sv)) { |
2793 | return SvNVX(sv); | |
61604483 | 2794 | } |
59d8ce62 | 2795 | if (SvIOKp(sv)) { |
0da6cfda | 2796 | SvNV_set(sv, SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv)); |
28e5dec8 JH |
2797 | #ifdef NV_PRESERVES_UV |
2798 | SvNOK_on(sv); | |
2799 | #else | |
2800 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2801 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2802 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2803 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2804 | SvNOK_on(sv); | |
2805 | else | |
2806 | SvNOKp_on(sv); | |
2807 | #endif | |
93a17b20 | 2808 | } |
748a9306 | 2809 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 | 2810 | UV value; |
fdac8c4b | 2811 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
c2988b20 | 2812 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) |
a0d0e21e | 2813 | not_a_number(sv); |
28e5dec8 | 2814 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2815 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2816 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2817 | /* It's definitely an integer */ |
0da6cfda | 2818 | SvNV_set(sv, (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value); |
c2988b20 | 2819 | } else |
fdac8c4b | 2820 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 JH |
2821 | SvNOK_on(sv); |
2822 | #else | |
fdac8c4b | 2823 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 JH |
2824 | /* Only set the public NV OK flag if this NV preserves the value in |
2825 | the PV at least as well as an IV/UV would. | |
2826 | Not sure how to do this 100% reliably. */ | |
2827 | /* if that shift count is out of range then Configure's test is | |
2828 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2829 | UV_BITS */ | |
2830 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2831 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2832 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2833 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2834 | /* Can't use strtol etc to convert this string, so don't try. | |
2835 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2836 | SvNOK_on(sv); | |
2837 | } else { | |
2838 | /* value has been set. It may not be precise. */ | |
2839 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2840 | /* 2s complement assumption for (UV)IV_MIN */ | |
2841 | SvNOK_on(sv); /* Integer is too negative. */ | |
2842 | } else { | |
2843 | SvNOKp_on(sv); | |
2844 | SvIOKp_on(sv); | |
6fa402ec | 2845 | |
c2988b20 | 2846 | if (numtype & IS_NUMBER_NEG) { |
0da6cfda | 2847 | SvIV_set(sv, -(IV)value); |
c2988b20 | 2848 | } else if (value <= (UV)IV_MAX) { |
0da6cfda | 2849 | SvIV_set(sv, (IV)value); |
c2988b20 | 2850 | } else { |
0da6cfda | 2851 | SvUV_set(sv, value); |
c2988b20 NC |
2852 | SvIsUV_on(sv); |
2853 | } | |
2854 | ||
2855 | if (numtype & IS_NUMBER_NOT_INT) { | |
2856 | /* I believe that even if the original PV had decimals, | |
2857 | they are lost beyond the limit of the FP precision. | |
2858 | However, neither is canonical, so both only get p | |
2859 | flags. NWC, 2000/11/25 */ | |
2860 | /* Both already have p flags, so do nothing */ | |
2861 | } else { | |
4996ee04 | 2862 | const NV nv = SvNVX(sv); |
c2988b20 NC |
2863 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { |
2864 | if (SvIVX(sv) == I_V(nv)) { | |
2865 | SvNOK_on(sv); | |
2866 | SvIOK_on(sv); | |
2867 | } else { | |
2868 | SvIOK_on(sv); | |
2869 | /* It had no "." so it must be integer. */ | |
2870 | } | |
2871 | } else { | |
2872 | /* between IV_MAX and NV(UV_MAX). | |
2873 | Could be slightly > UV_MAX */ | |
6fa402ec | 2874 | |
c2988b20 NC |
2875 | if (numtype & IS_NUMBER_NOT_INT) { |
2876 | /* UV and NV both imprecise. */ | |
2877 | } else { | |
4996ee04 | 2878 | const UV nv_as_uv = U_V(nv); |
c2988b20 NC |
2879 | |
2880 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2881 | SvNOK_on(sv); | |
2882 | SvIOK_on(sv); | |
2883 | } else { | |
2884 | SvIOK_on(sv); | |
2885 | } | |
2886 | } | |
2887 | } | |
2888 | } | |
2889 | } | |
2890 | } | |
28e5dec8 | 2891 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2892 | } |
79072805 | 2893 | else { |
599cee73 | 2894 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2895 | report_uninit(); |
25da4f38 IZ |
2896 | if (SvTYPE(sv) < SVt_NV) |
2897 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2898 | /* XXX Ilya implies that this is a bug in callers that assume this |
2899 | and ideally should be fixed. */ | |
25da4f38 | 2900 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2901 | return 0.0; |
79072805 | 2902 | } |
572bbb43 | 2903 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2904 | DEBUG_c({ |
f93f4e46 | 2905 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2906 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2907 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2908 | RESTORE_NUMERIC_LOCAL(); |
2909 | }); | |
65202027 | 2910 | #else |
572bbb43 | 2911 | DEBUG_c({ |
f93f4e46 | 2912 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2913 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2914 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2915 | RESTORE_NUMERIC_LOCAL(); |
2916 | }); | |
572bbb43 | 2917 | #endif |
463ee0b2 | 2918 | return SvNVX(sv); |
79072805 LW |
2919 | } |
2920 | ||
645c22ef DM |
2921 | /* asIV(): extract an integer from the string value of an SV. |
2922 | * Caller must validate PVX */ | |
2923 | ||
76e3520e | 2924 | STATIC IV |
cea2e8a9 | 2925 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2926 | { |
c2988b20 | 2927 | UV value; |
4996ee04 | 2928 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
c2988b20 NC |
2929 | |
2930 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2931 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2932 | /* It's definitely an integer */ |
c2988b20 NC |
2933 | if (numtype & IS_NUMBER_NEG) { |
2934 | if (value < (UV)IV_MIN) | |
2935 | return -(IV)value; | |
2936 | } else { | |
2937 | if (value < (UV)IV_MAX) | |
2938 | return (IV)value; | |
2939 | } | |
2940 | } | |
d008e5eb | 2941 | if (!numtype) { |
d008e5eb GS |
2942 | if (ckWARN(WARN_NUMERIC)) |
2943 | not_a_number(sv); | |
2944 | } | |
fdac8c4b | 2945 | return I_V(Atof(SvPVX_const(sv))); |
36477c24 | 2946 | } |
2947 | ||
645c22ef DM |
2948 | /* asUV(): extract an unsigned integer from the string value of an SV |
2949 | * Caller must validate PVX */ | |
2950 | ||
76e3520e | 2951 | STATIC UV |
cea2e8a9 | 2952 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2953 | { |
c2988b20 | 2954 | UV value; |
547d29e4 | 2955 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
36477c24 | 2956 | |
c2988b20 NC |
2957 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2958 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2959 | /* It's definitely an integer */ |
6fa402ec | 2960 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2961 | return value; |
2962 | } | |
d008e5eb | 2963 | if (!numtype) { |
d008e5eb GS |
2964 | if (ckWARN(WARN_NUMERIC)) |
2965 | not_a_number(sv); | |
2966 | } | |
fdac8c4b | 2967 | return U_V(Atof(SvPVX_const(sv))); |
36477c24 | 2968 | } |
2969 | ||
645c22ef DM |
2970 | /* |
2971 | =for apidoc sv_2pv_nolen | |
2972 | ||
2973 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2974 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2975 | =cut | |
2976 | */ | |
2977 | ||
79072805 | 2978 | char * |
864dbfa3 | 2979 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d | 2980 | { |
b92a0170 | 2981 | return sv_2pv(sv, 0); |
1fa8b10d JD |
2982 | } |
2983 | ||
645c22ef DM |
2984 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2985 | * UV as a string towards the end of buf, and return pointers to start and | |
2986 | * end of it. | |
2987 | * | |
2988 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2989 | */ | |
2990 | ||
864dbfa3 | 2991 | static char * |
25da4f38 IZ |
2992 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2993 | { | |
25da4f38 IZ |
2994 | char *ptr = buf + TYPE_CHARS(UV); |
2995 | char *ebuf = ptr; | |
2996 | int sign; | |
25da4f38 IZ |
2997 | |
2998 | if (is_uv) | |
2999 | sign = 0; | |
3000 | else if (iv >= 0) { | |
3001 | uv = iv; | |
3002 | sign = 0; | |
3003 | } else { | |
3004 | uv = -iv; | |
3005 | sign = 1; | |
3006 | } | |
3007 | do { | |
eb160463 | 3008 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
3009 | } while (uv /= 10); |
3010 | if (sign) | |
3011 | *--ptr = '-'; | |
3012 | *peob = ebuf; | |
3013 | return ptr; | |
3014 | } | |
3015 | ||
d34f9d2e JH |
3016 | /* sv_2pv() is now a macro using Perl_sv_2pv_flags(); |
3017 | * this function provided for binary compatibility only | |
3018 | */ | |
3019 | ||
3020 | char * | |
3021 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) | |
3022 | { | |
3023 | return sv_2pv_flags(sv, lp, SV_GMAGIC); | |
3024 | } | |
3025 | ||
645c22ef DM |
3026 | /* |
3027 | =for apidoc sv_2pv_flags | |
3028 | ||
ff276b08 | 3029 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
3030 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
3031 | if necessary. | |
3032 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
3033 | usually end up here too. | |
3034 | ||
3035 | =cut | |
3036 | */ | |
3037 | ||
8d6d96c1 HS |
3038 | char * |
3039 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
3040 | { | |
79072805 LW |
3041 | register char *s; |
3042 | int olderrno; | |
5b7ea690 | 3043 | SV *tsv, *origsv; |
25da4f38 IZ |
3044 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
3045 | char *tmpbuf = tbuf; | |
79072805 | 3046 | |
463ee0b2 | 3047 | if (!sv) { |
291a7e74 NC |
3048 | if (lp) |
3049 | *lp = 0; | |
e2b56717 | 3050 | return (char *)""; |
463ee0b2 | 3051 | } |
8990e307 | 3052 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
3053 | if (flags & SV_GMAGIC) |
3054 | mg_get(sv); | |
463ee0b2 | 3055 | if (SvPOKp(sv)) { |
291a7e74 NC |
3056 | if (lp) |
3057 | *lp = SvCUR(sv); | |
c06c673c NC |
3058 | if (flags & SV_MUTABLE_RETURN) |
3059 | return SvPVX_mutable(sv); | |
287c580e NC |
3060 | if (flags & SV_CONST_RETURN) |
3061 | return (char *)SvPVX_const(sv); | |
463ee0b2 LW |
3062 | return SvPVX(sv); |
3063 | } | |
cf2093f6 | 3064 | if (SvIOKp(sv)) { |
1c846c1f | 3065 | if (SvIsUV(sv)) |
57def98f | 3066 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 3067 | else |
57def98f | 3068 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 3069 | tsv = Nullsv; |
a0d0e21e | 3070 | goto tokensave; |
463ee0b2 LW |
3071 | } |
3072 | if (SvNOKp(sv)) { | |
2d4389e4 | 3073 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 3074 | tsv = Nullsv; |
a0d0e21e | 3075 | goto tokensave; |
463ee0b2 | 3076 | } |
16d20bd9 | 3077 | if (!SvROK(sv)) { |
d008e5eb | 3078 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 3079 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 3080 | report_uninit(); |
c6ee37c5 | 3081 | } |
291a7e74 NC |
3082 | if (lp) |
3083 | *lp = 0; | |
e2b56717 | 3084 | return (char *)""; |
16d20bd9 | 3085 | } |
463ee0b2 | 3086 | } |
ed6116ce LW |
3087 | if (SvTHINKFIRST(sv)) { |
3088 | if (SvROK(sv)) { | |
a0d0e21e | 3089 | SV* tmpstr; |
c05e0e2f | 3090 | register const char *typestr; |
1554e226 | 3091 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
b4b9a328 | 3092 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) { |
71a0dd65 NC |
3093 | /* Unwrap this: */ |
3094 | /* char *pv = lp ? SvPV(tmpstr, *lp) : SvPV_nolen(tmpstr); */ | |
3095 | ||
3096 | char *pv; | |
3097 | if ((SvFLAGS(tmpstr) & (SVf_POK)) == SVf_POK) { | |
3098 | if (flags & SV_CONST_RETURN) { | |
3099 | pv = (char *) SvPVX_const(tmpstr); | |
3100 | } else { | |
3101 | pv = (flags & SV_MUTABLE_RETURN) | |
3102 | ? SvPVX_mutable(tmpstr) : SvPVX(tmpstr); | |
3103 | } | |
3104 | if (lp) | |
3105 | *lp = SvCUR(tmpstr); | |
3106 | } else { | |
3107 | pv = sv_2pv_flags(tmpstr, lp, flags); | |
3108 | } | |
5b7ea690 JH |
3109 | if (SvUTF8(tmpstr)) |
3110 | SvUTF8_on(sv); | |
3111 | else | |
3112 | SvUTF8_off(sv); | |
3113 | return pv; | |
3114 | } | |
3115 | origsv = sv; | |
ed6116ce LW |
3116 | sv = (SV*)SvRV(sv); |
3117 | if (!sv) | |
c05e0e2f | 3118 | typestr = "NULLREF"; |
ed6116ce | 3119 | else { |
f9277f47 IZ |
3120 | MAGIC *mg; |
3121 | ||
ed6116ce | 3122 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
3123 | case SVt_PVMG: |
3124 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 3125 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
5835a535 | 3126 | == (SVs_OBJECT|SVs_SMG)) |
14befaf4 | 3127 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
c05e0e2f | 3128 | const regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 3129 | |
2cd61cdb | 3130 | if (!mg->mg_ptr) { |
c05e0e2f | 3131 | const char *fptr = "msix"; |
8782bef2 GB |
3132 | char reflags[6]; |
3133 | char ch; | |
3134 | int left = 0; | |
3135 | int right = 4; | |
ff385a1b | 3136 | char need_newline = 0; |
eb160463 | 3137 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 3138 | |
155aba94 | 3139 | while((ch = *fptr++)) { |
8782bef2 GB |
3140 | if(reganch & 1) { |
3141 | reflags[left++] = ch; | |
3142 | } | |
3143 | else { | |
3144 | reflags[right--] = ch; | |
3145 | } | |
3146 | reganch >>= 1; | |
3147 | } | |
3148 | if(left != 4) { | |
3149 | reflags[left] = '-'; | |
3150 | left = 5; | |
3151 | } | |
3152 | ||
3153 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
3154 | /* |
3155 | * If /x was used, we have to worry about a regex | |
3156 | * ending with a comment later being embedded | |
3157 | * within another regex. If so, we don't want this | |
3158 | * regex's "commentization" to leak out to the | |
3159 | * right part of the enclosing regex, we must cap | |
3160 | * it with a newline. | |
3161 | * | |
3162 | * So, if /x was used, we scan backwards from the | |
3163 | * end of the regex. If we find a '#' before we | |
3164 | * find a newline, we need to add a newline | |
3165 | * ourself. If we find a '\n' first (or if we | |
3166 | * don't find '#' or '\n'), we don't need to add | |
3167 | * anything. -jfriedl | |
3168 | */ | |
3169 | if (PMf_EXTENDED & re->reganch) | |
3170 | { | |
c05e0e2f | 3171 | const char *endptr = re->precomp + re->prelen; |
ff385a1b JF |
3172 | while (endptr >= re->precomp) |
3173 | { | |
c05e0e2f | 3174 | const char c = *(endptr--); |
ff385a1b JF |
3175 | if (c == '\n') |
3176 | break; /* don't need another */ | |
3177 | if (c == '#') { | |
3178 | /* we end while in a comment, so we | |
3179 | need a newline */ | |
3180 | mg->mg_len++; /* save space for it */ | |
3181 | need_newline = 1; /* note to add it */ | |
5b7ea690 | 3182 | break; |
ff385a1b JF |
3183 | } |
3184 | } | |
3185 | } | |
3186 | ||
cd7a8267 | 3187 | Newx(mg->mg_ptr, mg->mg_len + 1 + left, char); |
8782bef2 GB |
3188 | Copy("(?", mg->mg_ptr, 2, char); |
3189 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3190 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3191 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3192 | if (need_newline) |
3193 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3194 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3195 | mg->mg_ptr[mg->mg_len] = 0; | |
3196 | } | |
3280af22 | 3197 | PL_reginterp_cnt += re->program[0].next_off; |
5b7ea690 JH |
3198 | |
3199 | if (re->reganch & ROPT_UTF8) | |
3200 | SvUTF8_on(origsv); | |
3201 | else | |
3202 | SvUTF8_off(origsv); | |
291a7e74 NC |
3203 | if (lp) |
3204 | *lp = mg->mg_len; | |
1bd3ad17 | 3205 | return mg->mg_ptr; |
f9277f47 IZ |
3206 | } |
3207 | /* Fall through */ | |
ed6116ce LW |
3208 | case SVt_NULL: |
3209 | case SVt_IV: | |
3210 | case SVt_NV: | |
3211 | case SVt_RV: | |
3212 | case SVt_PV: | |
3213 | case SVt_PVIV: | |
3214 | case SVt_PVNV: | |
c05e0e2f AL |
3215 | case SVt_PVBM: typestr = SvROK(sv) ? "REF" : "SCALAR"; break; |
3216 | case SVt_PVLV: typestr = SvROK(sv) ? "REF" | |
ac388100 JH |
3217 | /* tied lvalues should appear to be |
3218 | * scalars for backwards compatitbility */ | |
3219 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
3220 | ? "SCALAR" : "LVALUE"; break; | |
c05e0e2f AL |
3221 | case SVt_PVAV: typestr = "ARRAY"; break; |
3222 | case SVt_PVHV: typestr = "HASH"; break; | |
3223 | case SVt_PVCV: typestr = "CODE"; break; | |
3224 | case SVt_PVGV: typestr = "GLOB"; break; | |
3225 | case SVt_PVFM: typestr = "FORMAT"; break; | |
3226 | case SVt_PVIO: typestr = "IO"; break; | |
3227 | default: typestr = "UNKNOWN"; break; | |
ed6116ce | 3228 | } |
46fc3d4c | 3229 | tsv = NEWSV(0,0); |
3c71ae1e | 3230 | if (SvOBJECT(sv)) { |
26ab6a78 | 3231 | const char *name = HvNAME_get(SvSTASH(sv)); |
3c71ae1e | 3232 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s(0x%"UVxf")", |
c05e0e2f | 3233 | name ? name : "__ANON__" , typestr, PTR2UV(sv)); |
3c71ae1e | 3234 | } |
ed6116ce | 3235 | else |
c05e0e2f | 3236 | Perl_sv_setpvf(aTHX_ tsv, "%s(0x%"UVxf")", typestr, PTR2UV(sv)); |
a0d0e21e | 3237 | goto tokensaveref; |
463ee0b2 | 3238 | } |
291a7e74 NC |
3239 | if (lp) |
3240 | *lp = strlen(typestr); | |
e2b56717 | 3241 | return (char *)typestr; |
79072805 | 3242 | } |
0336b60e | 3243 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3244 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3245 | report_uninit(); |
291a7e74 NC |
3246 | if (lp) |
3247 | *lp = 0; | |
e2b56717 | 3248 | return (char *)""; |
79072805 | 3249 | } |
79072805 | 3250 | } |
28e5dec8 JH |
3251 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3252 | /* I'm assuming that if both IV and NV are equally valid then | |
3253 | converting the IV is going to be more efficient */ | |
c05e0e2f AL |
3254 | const U32 isIOK = SvIOK(sv); |
3255 | const U32 isUIOK = SvIsUV(sv); | |
28e5dec8 JH |
3256 | char buf[TYPE_CHARS(UV)]; |
3257 | char *ebuf, *ptr; | |
3258 | ||
3259 | if (SvTYPE(sv) < SVt_PVIV) | |
3260 | sv_upgrade(sv, SVt_PVIV); | |
3261 | if (isUIOK) | |
3262 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3263 | else | |
3264 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
71a0dd65 NC |
3265 | /* inlined from sv_setpvn */ |
3266 | SvGROW_mutable(sv, (STRLEN)(ebuf - ptr + 1)); | |
287c580e | 3267 | Move(ptr,SvPVX_mutable(sv),ebuf - ptr,char); |
28e5dec8 JH |
3268 | SvCUR_set(sv, ebuf - ptr); |
3269 | s = SvEND(sv); | |
3270 | *s = '\0'; | |
3271 | if (isIOK) | |
3272 | SvIOK_on(sv); | |
3273 | else | |
3274 | SvIOKp_on(sv); | |
3275 | if (isUIOK) | |
3276 | SvIsUV_on(sv); | |
3277 | } | |
3278 | else if (SvNOKp(sv)) { | |
79072805 LW |
3279 | if (SvTYPE(sv) < SVt_PVNV) |
3280 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3281 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
71a0dd65 | 3282 | s = SvGROW_mutable(sv, NV_DIG + 20); |
79072805 | 3283 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3284 | #ifdef apollo |
463ee0b2 | 3285 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3286 | (void)strcpy(s,"0"); |
3287 | else | |
3288 | #endif /*apollo*/ | |
bbce6d69 | 3289 | { |
2d4389e4 | 3290 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3291 | } |
79072805 | 3292 | errno = olderrno; |
a0d0e21e LW |
3293 | #ifdef FIXNEGATIVEZERO |
3294 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3295 | strcpy(s,"0"); | |
3296 | #endif | |
79072805 LW |
3297 | while (*s) s++; |
3298 | #ifdef hcx | |
3299 | if (s[-1] == '.') | |
46fc3d4c | 3300 | *--s = '\0'; |
79072805 LW |
3301 | #endif |
3302 | } | |
79072805 | 3303 | else { |
0336b60e IZ |
3304 | if (ckWARN(WARN_UNINITIALIZED) |
3305 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3306 | report_uninit(); |
291a7e74 | 3307 | if (lp) |
a0d0e21e | 3308 | *lp = 0; |
25da4f38 IZ |
3309 | if (SvTYPE(sv) < SVt_PV) |
3310 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3311 | sv_upgrade(sv, SVt_PV); | |
e2b56717 | 3312 | return (char *)""; |
79072805 | 3313 | } |
291a7e74 NC |
3314 | { |
3315 | STRLEN len = s - SvPVX_const(sv); | |
3316 | if (lp) | |
3317 | *lp = len; | |
3318 | SvCUR_set(sv, len); | |
3319 | } | |
79072805 | 3320 | SvPOK_on(sv); |
1d7c1841 | 3321 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
fdac8c4b | 3322 | PTR2UV(sv),SvPVX_const(sv))); |
287c580e NC |
3323 | if (flags & SV_CONST_RETURN) |
3324 | return (char *)SvPVX_const(sv); | |
c06c673c NC |
3325 | if (flags & SV_MUTABLE_RETURN) |
3326 | return SvPVX_mutable(sv); | |
463ee0b2 | 3327 | return SvPVX(sv); |
a0d0e21e LW |
3328 | |
3329 | tokensave: | |
3330 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3331 | /* Sneaky stuff here */ | |
3332 | ||
3333 | tokensaveref: | |
46fc3d4c | 3334 | if (!tsv) |
96827780 | 3335 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3336 | sv_2mortal(tsv); |
291a7e74 NC |
3337 | if (lp) |
3338 | *lp = SvCUR(tsv); | |
46fc3d4c | 3339 | return SvPVX(tsv); |
a0d0e21e LW |
3340 | } |
3341 | else { | |
3342 | STRLEN len; | |
e2b56717 | 3343 | const char *t; |
46fc3d4c | 3344 | |
3345 | if (tsv) { | |
3346 | sv_2mortal(tsv); | |
fdac8c4b | 3347 | t = SvPVX_const(tsv); |
46fc3d4c | 3348 | len = SvCUR(tsv); |
3349 | } | |
3350 | else { | |
96827780 MB |
3351 | t = tmpbuf; |
3352 | len = strlen(tmpbuf); | |
46fc3d4c | 3353 | } |
a0d0e21e | 3354 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3355 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3356 | t = "0"; | |
3357 | len = 1; | |
3358 | } | |
a0d0e21e LW |
3359 | #endif |
3360 | (void)SvUPGRADE(sv, SVt_PV); | |
291a7e74 NC |
3361 | if (lp) |
3362 | *lp = len; | |
71a0dd65 | 3363 | s = SvGROW_mutable(sv, len + 1); |
a0d0e21e | 3364 | SvCUR_set(sv, len); |
6bf554b4 | 3365 | SvPOKp_on(sv); |
4c58c75a | 3366 | return memcpy(s, t, len + 1); |
a0d0e21e | 3367 | } |
463ee0b2 LW |
3368 | } |
3369 | ||
645c22ef | 3370 | /* |
6050d10e JP |
3371 | =for apidoc sv_copypv |
3372 | ||
3373 | Copies a stringified representation of the source SV into the | |
3374 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3375 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3376 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3377 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3378 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3379 | would lose the UTF-8'ness of the PV. |
3380 | ||
3381 | =cut | |
3382 | */ | |
3383 | ||
3384 | void | |
3385 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3386 | { | |
5b7ea690 | 3387 | STRLEN len; |
0188be2e | 3388 | const char * const s = SvPV_const(ssv,len); |
5b7ea690 JH |
3389 | sv_setpvn(dsv,s,len); |
3390 | if (SvUTF8(ssv)) | |
3391 | SvUTF8_on(dsv); | |
3392 | else | |
3393 | SvUTF8_off(dsv); | |
6050d10e JP |
3394 | } |
3395 | ||
3396 | /* | |
645c22ef DM |
3397 | =for apidoc sv_2pvbyte_nolen |
3398 | ||
3399 | Return a pointer to the byte-encoded representation of the SV. | |
cd458e05 | 3400 | May cause the SV to be downgraded from UTF-8 as a side-effect. |
645c22ef DM |
3401 | |
3402 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3403 | ||
3404 | =cut | |
3405 | */ | |
3406 | ||
7340a771 GS |
3407 | char * |
3408 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3409 | { | |
b92a0170 | 3410 | return sv_2pvbyte(sv, 0); |
7340a771 GS |
3411 | } |
3412 | ||
645c22ef DM |
3413 | /* |
3414 | =for apidoc sv_2pvbyte | |
3415 | ||
3416 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
cd458e05 | 3417 | to its length. May cause the SV to be downgraded from UTF-8 as a |
645c22ef DM |
3418 | side-effect. |
3419 | ||
3420 | Usually accessed via the C<SvPVbyte> macro. | |
3421 | ||
3422 | =cut | |
3423 | */ | |
3424 | ||
7340a771 GS |
3425 | char * |
3426 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3427 | { | |
0875d2fe | 3428 | sv_utf8_downgrade(sv,0); |
71a0dd65 | 3429 | return lp ? SvPV(sv,*lp) : SvPV_nolen(sv); |
7340a771 GS |
3430 | } |
3431 | ||
645c22ef DM |
3432 | /* |
3433 | =for apidoc sv_2pvutf8_nolen | |
3434 | ||
cd458e05 JH |
3435 | Return a pointer to the UTF-8-encoded representation of the SV. |
3436 | May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3437 | |
3438 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3439 | ||
3440 | =cut | |
3441 | */ | |
3442 | ||
7340a771 GS |
3443 | char * |
3444 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3445 | { | |
b92a0170 | 3446 | return sv_2pvutf8(sv, 0); |
7340a771 GS |
3447 | } |
3448 | ||
645c22ef DM |
3449 | /* |
3450 | =for apidoc sv_2pvutf8 | |
3451 | ||
cd458e05 JH |
3452 | Return a pointer to the UTF-8-encoded representation of the SV, and set *lp |
3453 | to its length. May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3454 | |
3455 | Usually accessed via the C<SvPVutf8> macro. | |
3456 | ||
3457 | =cut | |
3458 | */ | |
3459 | ||
7340a771 GS |
3460 | char * |
3461 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3462 | { | |
560a288e | 3463 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3464 | return SvPV(sv,*lp); |
7340a771 | 3465 | } |
1c846c1f | 3466 | |
645c22ef DM |
3467 | /* |
3468 | =for apidoc sv_2bool | |
3469 | ||
3470 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3471 | sv_true() or its macro equivalent. |
645c22ef DM |
3472 | |
3473 | =cut | |
3474 | */ | |
3475 | ||
463ee0b2 | 3476 | bool |
864dbfa3 | 3477 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3478 | { |
8990e307 | 3479 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3480 | mg_get(sv); |
3481 | ||
a0d0e21e LW |
3482 | if (!SvOK(sv)) |
3483 | return 0; | |
3484 | if (SvROK(sv)) { | |
a0d0e21e | 3485 | SV* tmpsv; |
1554e226 | 3486 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3487 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3488 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3489 | return SvRV(sv) != 0; |
3490 | } | |
463ee0b2 | 3491 | if (SvPOKp(sv)) { |
0188be2e AL |
3492 | register XPV* const Xpvtmp = (XPV*)SvANY(sv); |
3493 | if (Xpvtmp && | |
11343788 MB |
3494 | (*Xpvtmp->xpv_pv > '0' || |
3495 | Xpvtmp->xpv_cur > 1 || | |
3496 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3497 | return 1; |
3498 | else | |
3499 | return 0; | |
3500 | } | |
3501 | else { | |
3502 | if (SvIOKp(sv)) | |
3503 | return SvIVX(sv) != 0; | |
3504 | else { | |
3505 | if (SvNOKp(sv)) | |
3506 | return SvNVX(sv) != 0.0; | |
3507 | else | |
3508 | return FALSE; | |
3509 | } | |
3510 | } | |
79072805 LW |
3511 | } |
3512 | ||
d34f9d2e JH |
3513 | /* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags(); |
3514 | * this function provided for binary compatibility only | |
3515 | */ | |
3516 | ||
3517 | ||
3518 | STRLEN | |
3519 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) | |
3520 | { | |
3521 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); | |
3522 | } | |
3523 | ||
c461cf8f JH |
3524 | /* |
3525 | =for apidoc sv_utf8_upgrade | |
3526 | ||
a48bc54f | 3527 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3528 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3529 | Always sets the SvUTF8 flag to avoid future validity checks even |
3530 | if all the bytes have hibit clear. | |
c461cf8f | 3531 | |
13a6c0e0 JH |
3532 | This is not as a general purpose byte encoding to Unicode interface: |
3533 | use the Encode extension for that. | |
3534 | ||
8d6d96c1 HS |
3535 | =for apidoc sv_utf8_upgrade_flags |
3536 | ||
a48bc54f | 3537 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3538 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3539 | Always sets the SvUTF8 flag to avoid future validity checks even |
3540 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3541 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3542 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3543 | ||
13a6c0e0 JH |
3544 | This is not as a general purpose byte encoding to Unicode interface: |
3545 | use the Encode extension for that. | |
3546 | ||
8d6d96c1 HS |
3547 | =cut |
3548 | */ | |
3549 | ||
3550 | STRLEN | |
3551 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3552 | { | |
d9835d7b NC |
3553 | if (sv == &PL_sv_undef) |
3554 | return 0; | |
e0e62c2a NIS |
3555 | if (!SvPOK(sv)) { |
3556 | STRLEN len = 0; | |
d6e8a192 NC |
3557 | if (SvREADONLY(sv) && (SvPOKp(sv) || SvIOKp(sv) || SvNOKp(sv))) { |
3558 | (void) sv_2pv_flags(sv,&len, flags); | |
3559 | if (SvUTF8(sv)) | |
3560 | return len; | |
3561 | } else { | |
3562 | (void) SvPV_force(sv,len); | |
3563 | } | |
e0e62c2a | 3564 | } |
4411f3b6 | 3565 | |
548f1cb8 | 3566 | if (SvUTF8(sv)) { |
4411f3b6 | 3567 | return SvCUR(sv); |
548f1cb8 | 3568 | } |
560a288e | 3569 | |
db42d148 NIS |
3570 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3571 | sv_force_normal(sv); | |
3572 | } | |
3573 | ||
6563884d | 3574 | if (PL_encoding && !(flags & SV_UTF8_NO_ENCODING)) |
799ef3cb | 3575 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3576 | else { /* Assume Latin-1/EBCDIC */ |
676a626c NC |
3577 | /* This function could be much more efficient if we |
3578 | * had a FLAG in SVs to signal if there are any hibit | |
3579 | * chars in the PV. Given that there isn't such a flag | |
3580 | * make the loop as fast as possible. */ | |
23c2bb70 NC |
3581 | const U8 *s = (U8 *) SvPVX_const(sv); |
3582 | const U8 *e = (U8 *) SvEND(sv); | |
3583 | const U8 *t = s; | |
676a626c NC |
3584 | int hibit = 0; |
3585 | ||
3586 | while (t < e) { | |
0188be2e | 3587 | const U8 ch = *t++; |
676a626c NC |
3588 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) |
3589 | break; | |
3590 | } | |
3591 | if (hibit) { | |
3592 | STRLEN len = SvCUR(sv) + 1; /* Plus the \0 */ | |
0188be2e | 3593 | U8 * const recoded = bytes_to_utf8((U8*)s, &len); |
676a626c NC |
3594 | |
3595 | SvPV_free(sv); /* No longer using what was there before. */ | |
3596 | ||
71a0dd65 | 3597 | SvPV_set(sv, (char*)recoded); |
676a626c NC |
3598 | SvCUR_set(sv, len - 1); |
3599 | SvLEN_set(sv, len); /* No longer know the real size. */ | |
3600 | } | |
3601 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ | |
3602 | SvUTF8_on(sv); | |
560a288e | 3603 | } |
4411f3b6 | 3604 | return SvCUR(sv); |
560a288e GS |
3605 | } |
3606 | ||
c461cf8f JH |
3607 | /* |
3608 | =for apidoc sv_utf8_downgrade | |
3609 | ||
a48bc54f TS |
3610 | Attempts to convert the PV of an SV from characters to bytes. |
3611 | If the PV contains a character beyond byte, this conversion will fail; | |
3612 | in this case, either returns false or, if C<fail_ok> is not | |
c461cf8f JH |
3613 | true, croaks. |
3614 | ||
13a6c0e0 JH |
3615 | This is not as a general purpose Unicode to byte encoding interface: |
3616 | use the Encode extension for that. | |
3617 | ||
c461cf8f JH |
3618 | =cut |
3619 | */ | |
3620 | ||
560a288e GS |
3621 | bool |
3622 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3623 | { | |
a48bc54f | 3624 | if (SvPOKp(sv) && SvUTF8(sv)) { |
fa301091 | 3625 | if (SvCUR(sv)) { |
03cfe0ae | 3626 | U8 *s; |
652088fc | 3627 | STRLEN len; |
fa301091 | 3628 | |
652088fc JH |
3629 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3630 | sv_force_normal(sv); | |
03cfe0ae NIS |
3631 | s = (U8 *) SvPV(sv, len); |
3632 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3633 | if (fail_ok) |
3634 | return FALSE; | |
3635 | else { | |
3636 | if (PL_op) | |
3637 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3638 | OP_DESC(PL_op)); |
fa301091 JH |
3639 | else |
3640 | Perl_croak(aTHX_ "Wide character"); | |
3641 | } | |
4b3603a4 | 3642 | } |
a8dc4fe8 | 3643 | SvCUR_set(sv, len); |
67e989fb | 3644 | } |
560a288e | 3645 | } |
ffebcc3e | 3646 | SvUTF8_off(sv); |
560a288e GS |
3647 | return TRUE; |
3648 | } | |
3649 | ||
c461cf8f JH |
3650 | /* |
3651 | =for apidoc sv_utf8_encode | |
3652 | ||
a48bc54f TS |
3653 | Converts the PV of an SV to UTF-8, but then turns the C<SvUTF8> |
3654 | flag off so that it looks like octets again. | |
c461cf8f JH |
3655 | |
3656 | =cut | |
3657 | */ | |
3658 | ||
560a288e GS |
3659 | void |
3660 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3661 | { | |
4411f3b6 | 3662 | (void) sv_utf8_upgrade(sv); |
71410450 NC |
3663 | if (SvIsCOW(sv)) { |
3664 | sv_force_normal_flags(sv, 0); | |
3665 | } | |
3666 | if (SvREADONLY(sv)) { | |
3667 | Perl_croak(aTHX_ PL_no_modify); | |
3668 | } | |
560a288e GS |
3669 | SvUTF8_off(sv); |
3670 | } | |
3671 | ||
4411f3b6 NIS |
3672 | /* |
3673 | =for apidoc sv_utf8_decode | |
3674 | ||
a48bc54f TS |
3675 | If the PV of the SV is an octet sequence in UTF-8 |
3676 | and contains a multiple-byte character, the C<SvUTF8> flag is turned on | |
3677 | so that it looks like a character. If the PV contains only single-byte | |
3678 | characters, the C<SvUTF8> flag stays being off. | |
3679 | Scans PV for validity and returns false if the PV is invalid UTF-8. | |
4411f3b6 NIS |
3680 | |
3681 | =cut | |
3682 | */ | |
3683 | ||
560a288e GS |
3684 | bool |
3685 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3686 | { | |
a48bc54f | 3687 | if (SvPOKp(sv)) { |
23c2bb70 NC |
3688 | const U8 *c; |
3689 | const U8 *e; | |
9cbac4c7 | 3690 | |
645c22ef DM |
3691 | /* The octets may have got themselves encoded - get them back as |
3692 | * bytes | |
3693 | */ | |
3694 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3695 | return FALSE; |
3696 | ||
3697 | /* it is actually just a matter of turning the utf8 flag on, but | |
3698 | * we want to make sure everything inside is valid utf8 first. | |
3699 | */ | |
23c2bb70 | 3700 | c = (const U8 *) SvPVX_const(sv); |
63cd0674 | 3701 | if (!is_utf8_string(c, SvCUR(sv)+1)) |
67e989fb | 3702 | return FALSE; |
23c2bb70 | 3703 | e = (const U8 *) SvEND(sv); |
511c2ff0 | 3704 | while (c < e) { |
e4a519ba | 3705 | const U8 ch = *c++; |
c4d5f83a | 3706 | if (!UTF8_IS_INVARIANT(ch)) { |
67e989fb JH |
3707 | SvUTF8_on(sv); |
3708 | break; | |
3709 | } | |
560a288e | 3710 | } |
560a288e GS |
3711 | } |
3712 | return TRUE; | |
3713 | } | |
3714 | ||
d34f9d2e JH |
3715 | /* sv_setsv() is now a macro using Perl_sv_setsv_flags(); |
3716 | * this function provided for binary compatibility only | |
3717 | */ | |
3718 | ||
3719 | void | |
3720 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) | |
3721 | { | |
3722 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); | |
3723 | } | |
3724 | ||
954c1994 GS |
3725 | /* |
3726 | =for apidoc sv_setsv | |
3727 | ||
645c22ef DM |
3728 | Copies the contents of the source SV C<ssv> into the destination SV |
3729 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3730 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3731 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3732 | content of the destination. | |
3733 | ||
3734 | You probably want to use one of the assortment of wrappers, such as | |
3735 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3736 | C<SvSetMagicSV_nosteal>. | |
3737 | ||
8d6d96c1 HS |
3738 | =for apidoc sv_setsv_flags |
3739 | ||
645c22ef DM |
3740 | Copies the contents of the source SV C<ssv> into the destination SV |
3741 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3742 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3743 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3744 | content of the destination. | |
3745 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
65daad90 NC |
3746 | C<ssv> if appropriate, else not. If the C<flags> parameter has the |
3747 | C<NOSTEAL> bit set then the buffers of temps will not be stolen. <sv_setsv> | |
3748 | and C<sv_setsv_nomg> are implemented in terms of this function. | |
645c22ef DM |
3749 | |
3750 | You probably want to use one of the assortment of wrappers, such as | |
3751 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3752 | C<SvSetMagicSV_nosteal>. | |
3753 | ||
3754 | This is the primary function for copying scalars, and most other | |
3755 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3756 | |
3757 | =cut | |
3758 | */ | |
3759 | ||
3760 | void | |
3761 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3762 | { | |
8990e307 LW |
3763 | register U32 sflags; |
3764 | register int dtype; | |
3765 | register int stype; | |
463ee0b2 | 3766 | |
79072805 LW |
3767 | if (sstr == dstr) |
3768 | return; | |
2213622d | 3769 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3770 | if (!sstr) |
3280af22 | 3771 | sstr = &PL_sv_undef; |
8990e307 LW |
3772 | stype = SvTYPE(sstr); |
3773 | dtype = SvTYPE(dstr); | |
79072805 | 3774 | |
a0d0e21e | 3775 | SvAMAGIC_off(dstr); |
7d7ce6cc JH |
3776 | if ( SvVOK(dstr) ) |
3777 | { | |
3778 | /* need to nuke the magic */ | |
3779 | mg_free(dstr); | |
3780 | SvRMAGICAL_off(dstr); | |
3781 | } | |
9e7bc3e8 | 3782 | |
463ee0b2 | 3783 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3784 | |
8990e307 | 3785 | switch (stype) { |
79072805 | 3786 | case SVt_NULL: |
aece5585 | 3787 | undef_sstr: |
20408e3c GS |
3788 | if (dtype != SVt_PVGV) { |
3789 | (void)SvOK_off(dstr); | |
3790 | return; | |
3791 | } | |
3792 | break; | |
463ee0b2 | 3793 | case SVt_IV: |
aece5585 GA |
3794 | if (SvIOK(sstr)) { |
3795 | switch (dtype) { | |
3796 | case SVt_NULL: | |
8990e307 | 3797 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3798 | break; |
3799 | case SVt_NV: | |
8990e307 | 3800 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3801 | break; |
3802 | case SVt_RV: | |
3803 | case SVt_PV: | |
a0d0e21e | 3804 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3805 | break; |
3806 | } | |
3807 | (void)SvIOK_only(dstr); | |
0da6cfda | 3808 | SvIV_set(dstr, SvIVX(sstr)); |
25da4f38 IZ |
3809 | if (SvIsUV(sstr)) |
3810 | SvIsUV_on(dstr); | |
27c9684d AP |
3811 | if (SvTAINTED(sstr)) |
3812 | SvTAINT(dstr); | |
aece5585 | 3813 | return; |
8990e307 | 3814 | } |
aece5585 GA |
3815 | goto undef_sstr; |
3816 | ||
463ee0b2 | 3817 | case SVt_NV: |
aece5585 GA |
3818 | if (SvNOK(sstr)) { |
3819 | switch (dtype) { | |
3820 | case SVt_NULL: | |
3821 | case SVt_IV: | |
8990e307 | 3822 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3823 | break; |
3824 | case SVt_RV: | |
3825 | case SVt_PV: | |
3826 | case SVt_PVIV: | |
a0d0e21e | 3827 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3828 | break; |
3829 | } | |
0da6cfda | 3830 | SvNV_set(dstr, SvNVX(sstr)); |
aece5585 | 3831 | (void)SvNOK_only(dstr); |
27c9684d AP |
3832 | if (SvTAINTED(sstr)) |
3833 | SvTAINT(dstr); | |
aece5585 | 3834 | return; |
8990e307 | 3835 | } |
aece5585 GA |
3836 | goto undef_sstr; |
3837 | ||
ed6116ce | 3838 | case SVt_RV: |
8990e307 | 3839 | if (dtype < SVt_RV) |
ed6116ce | 3840 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3841 | else if (dtype == SVt_PVGV && |
5e8f8cda | 3842 | SvROK(sstr) && SvTYPE(SvRV(sstr)) == SVt_PVGV) { |
c07a80fd | 3843 | sstr = SvRV(sstr); |
a5f75d66 | 3844 | if (sstr == dstr) { |
1d7c1841 GS |
3845 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3846 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3847 | { | |
a5f75d66 | 3848 | GvIMPORTED_on(dstr); |
1d7c1841 | 3849 | } |
a5f75d66 AD |
3850 | GvMULTI_on(dstr); |
3851 | return; | |
3852 | } | |
c07a80fd | 3853 | goto glob_assign; |
3854 | } | |
ed6116ce | 3855 | break; |
463ee0b2 | 3856 | case SVt_PV: |
fc36a67e | 3857 | case SVt_PVFM: |
8990e307 | 3858 | if (dtype < SVt_PV) |
463ee0b2 | 3859 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3860 | break; |
3861 | case SVt_PVIV: | |
8990e307 | 3862 | if (dtype < SVt_PVIV) |
463ee0b2 | 3863 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3864 | break; |
3865 | case SVt_PVNV: | |
8990e307 | 3866 | if (dtype < SVt_PVNV) |
463ee0b2 | 3867 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3868 | break; |
4633a7c4 LW |
3869 | case SVt_PVAV: |
3870 | case SVt_PVHV: | |
3871 | case SVt_PVCV: | |
4633a7c4 | 3872 | case SVt_PVIO: |
8c18bf38 AL |
3873 | { |
3874 | const char * const type = sv_reftype(sstr,0); | |
533c011a | 3875 | if (PL_op) |
8c18bf38 | 3876 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", type, OP_NAME(PL_op)); |
4633a7c4 | 3877 | else |
8c18bf38 AL |
3878 | Perl_croak(aTHX_ "Bizarre copy of %s", type); |
3879 | } | |
4633a7c4 LW |
3880 | break; |
3881 | ||
79072805 | 3882 | case SVt_PVGV: |
8990e307 | 3883 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3884 | glob_assign: |
a5f75d66 | 3885 | if (dtype != SVt_PVGV) { |
8c18bf38 AL |
3886 | const char * const name = GvNAME(sstr); |
3887 | const STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3888 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3889 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3890 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3891 | GvNAME(dstr) = savepvn(name, len); |
3892 | GvNAMELEN(dstr) = len; | |
3893 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3894 | } | |
7bac28a0 | 3895 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3896 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3897 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3898 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3899 | GvNAME(dstr)); |
5bd07a3d | 3900 | |
7fb37951 AMS |
3901 | #ifdef GV_UNIQUE_CHECK |
3902 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3903 | Perl_croak(aTHX_ PL_no_modify); |
3904 | } | |
3905 | #endif | |
3906 | ||
a0d0e21e | 3907 | (void)SvOK_off(dstr); |
a5f75d66 | 3908 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3909 | gp_free((GV*)dstr); |
79072805 | 3910 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3911 | if (SvTAINTED(sstr)) |
3912 | SvTAINT(dstr); | |
1d7c1841 GS |
3913 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3914 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3915 | { | |
a5f75d66 | 3916 | GvIMPORTED_on(dstr); |
1d7c1841 | 3917 | } |
a5f75d66 | 3918 | GvMULTI_on(dstr); |
79072805 LW |
3919 | return; |
3920 | } | |
3921 | /* FALL THROUGH */ | |
3922 | ||
3923 | default: | |
8d6d96c1 | 3924 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 3925 | mg_get(sstr); |
eb160463 | 3926 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
3927 | stype = SvTYPE(sstr); |
3928 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3929 | goto glob_assign; | |
3930 | } | |
3931 | } | |
ded42b9f | 3932 | if (stype == SVt_PVLV) |
6fc92669 | 3933 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3934 | else |
eb160463 | 3935 | (void)SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
3936 | } |
3937 | ||
8990e307 LW |
3938 | sflags = SvFLAGS(sstr); |
3939 | ||
3940 | if (sflags & SVf_ROK) { | |
3941 | if (dtype >= SVt_PV) { | |
3942 | if (dtype == SVt_PVGV) { | |
3943 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3944 | SV *dref = 0; | |
8c18bf38 | 3945 | const int intro = GvINTRO(dstr); |
a0d0e21e | 3946 | |
7fb37951 AMS |
3947 | #ifdef GV_UNIQUE_CHECK |
3948 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3949 | Perl_croak(aTHX_ PL_no_modify); |
3950 | } | |
3951 | #endif | |
3952 | ||
a0d0e21e | 3953 | if (intro) { |
a5f75d66 | 3954 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3955 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3956 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3957 | } |
a5f75d66 | 3958 | GvMULTI_on(dstr); |
8990e307 LW |
3959 | switch (SvTYPE(sref)) { |
3960 | case SVt_PVAV: | |
a0d0e21e | 3961 | if (intro) |
9b1c5f7e | 3962 | SAVEGENERICSV(GvAV(dstr)); |
a0d0e21e LW |
3963 | else |
3964 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3965 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3966 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3967 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3968 | { | |
a5f75d66 | 3969 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3970 | } |
8990e307 LW |
3971 | break; |
3972 | case SVt_PVHV: | |
a0d0e21e | 3973 | if (intro) |
9b1c5f7e | 3974 | SAVEGENERICSV(GvHV(dstr)); |
a0d0e21e LW |
3975 | else |
3976 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3977 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3978 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3979 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3980 | { | |
a5f75d66 | 3981 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3982 | } |
8990e307 LW |
3983 | break; |
3984 | case SVt_PVCV: | |
8ebc5c01 | 3985 | if (intro) { |
3986 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3987 | SvREFCNT_dec(GvCV(dstr)); | |
3988 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3989 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3990 | PL_sub_generation++; |
8ebc5c01 | 3991 | } |
9b1c5f7e | 3992 | SAVEGENERICSV(GvCV(dstr)); |
8ebc5c01 | 3993 | } |
68dc0745 | 3994 | else |
3995 | dref = (SV*)GvCV(dstr); | |
3996 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3997 | CV* cv = GvCV(dstr); |
4633a7c4 | 3998 | if (cv) { |
68dc0745 | 3999 | if (!GvCVGEN((GV*)dstr) && |
4000 | (CvROOT(cv) || CvXSUB(cv))) | |
4001 | { | |
7bac28a0 | 4002 | /* ahem, death to those who redefine |
4003 | * active sort subs */ | |
3280af22 NIS |
4004 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
4005 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 4006 | Perl_croak(aTHX_ |
7bac28a0 | 4007 | "Can't redefine active sort subroutine %s", |
4008 | GvENAME((GV*)dstr)); | |
beab0874 JT |
4009 | /* Redefining a sub - warning is mandatory if |
4010 | it was a const and its value changed. */ | |
4011 | if (ckWARN(WARN_REDEFINE) | |
4012 | || (CvCONST(cv) | |
4013 | && (!CvCONST((CV*)sref) | |
4014 | || sv_cmp(cv_const_sv(cv), | |
4015 | cv_const_sv((CV*)sref))))) | |
4016 | { | |
9014280d | 4017 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 4018 | CvCONST(cv) |
910764e6 RGS |
4019 | ? "Constant subroutine %s::%s redefined" |
4020 | : "Subroutine %s::%s redefined", | |
26ab6a78 | 4021 | HvNAME_get(GvSTASH((GV*)dstr)), |
beab0874 JT |
4022 | GvENAME((GV*)dstr)); |
4023 | } | |
9607fc9c | 4024 | } |
fb24441d RGS |
4025 | if (!intro) |
4026 | cv_ckproto(cv, (GV*)dstr, | |
23c2bb70 NC |
4027 | SvPOK(sref) |
4028 | ? SvPVX_const(sref) : Nullch); | |
4633a7c4 | 4029 | } |
a5f75d66 | 4030 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 4031 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 4032 | GvASSUMECV_on(dstr); |
3280af22 | 4033 | PL_sub_generation++; |
a5f75d66 | 4034 | } |
39bac7f7 | 4035 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
4036 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4037 | { | |
a5f75d66 | 4038 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 4039 | } |
8990e307 | 4040 | break; |
91bba347 LW |
4041 | case SVt_PVIO: |
4042 | if (intro) | |
9b1c5f7e | 4043 | SAVEGENERICSV(GvIOp(dstr)); |
91bba347 LW |
4044 | else |
4045 | dref = (SV*)GvIOp(dstr); | |
4046 | GvIOp(dstr) = (IO*)sref; | |
4047 | break; | |
f4d13ee9 JH |
4048 | case SVt_PVFM: |
4049 | if (intro) | |
9b1c5f7e | 4050 | SAVEGENERICSV(GvFORM(dstr)); |
f4d13ee9 JH |
4051 | else |
4052 | dref = (SV*)GvFORM(dstr); | |
4053 | GvFORM(dstr) = (CV*)sref; | |
4054 | break; | |
8990e307 | 4055 | default: |
a0d0e21e | 4056 | if (intro) |
9b1c5f7e | 4057 | SAVEGENERICSV(GvSV(dstr)); |
a0d0e21e LW |
4058 | else |
4059 | dref = (SV*)GvSV(dstr); | |
8990e307 | 4060 | GvSV(dstr) = sref; |
39bac7f7 | 4061 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
4062 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4063 | { | |
a5f75d66 | 4064 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 4065 | } |
8990e307 LW |
4066 | break; |
4067 | } | |
4068 | if (dref) | |
4069 | SvREFCNT_dec(dref); | |
27c9684d AP |
4070 | if (SvTAINTED(sstr)) |
4071 | SvTAINT(dstr); | |
8990e307 LW |
4072 | return; |
4073 | } | |
fdac8c4b | 4074 | if (SvPVX_const(dstr)) { |
676a626c | 4075 | SvPV_free(dstr); |
a8dc4fe8 SP |
4076 | SvLEN_set(dstr, 0); |
4077 | SvCUR_set(dstr, 0); | |
a0d0e21e | 4078 | } |
8990e307 | 4079 | } |
a0d0e21e | 4080 | (void)SvOK_off(dstr); |
a8dc4fe8 | 4081 | SvRV_set(dstr, SvREFCNT_inc(SvRV(sstr))); |
ed6116ce | 4082 | SvROK_on(dstr); |
8990e307 | 4083 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4084 | SvNOKp_on(dstr); |
4085 | /* Only set the public OK flag if the source has public OK. */ | |
4086 | if (sflags & SVf_NOK) | |
4087 | SvFLAGS(dstr) |= SVf_NOK; | |
0da6cfda | 4088 | SvNV_set(dstr, SvNVX(sstr)); |
ed6116ce | 4089 | } |
8990e307 | 4090 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4091 | (void)SvIOKp_on(dstr); |
4092 | if (sflags & SVf_IOK) | |
4093 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4094 | if (sflags & SVf_IVisUV) |
25da4f38 | 4095 | SvIsUV_on(dstr); |
0da6cfda | 4096 | SvIV_set(dstr, SvIVX(sstr)); |
ed6116ce | 4097 | } |
a0d0e21e LW |
4098 | if (SvAMAGIC(sstr)) { |
4099 | SvAMAGIC_on(dstr); | |
4100 | } | |
ed6116ce | 4101 | } |
8990e307 | 4102 | else if (sflags & SVp_POK) { |
79072805 LW |
4103 | |
4104 | /* | |
4105 | * Check to see if we can just swipe the string. If so, it's a | |
4106 | * possible small lose on short strings, but a big win on long ones. | |
fdac8c4b SP |
4107 | * It might even be a win on short strings if SvPVX_const(dstr) |
4108 | * has to be allocated and SvPVX_const(sstr) has to be freed. | |
79072805 LW |
4109 | */ |
4110 | ||
ff68c719 | 4111 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 4112 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
65daad90 | 4113 | (!(flags & SV_NOSTEAL)) && /* and we're allowed to steal temps */ |
1c846c1f | 4114 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 4115 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
4116 | /* and won't be needed again, potentially */ |
4117 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 4118 | { |
a02c78fd NC |
4119 | if (SvPVX_const(dstr)) { /* we know that dtype >= SVt_PV */ |
4120 | SvPV_free(dstr); | |
79072805 | 4121 | } |
a5f75d66 | 4122 | (void)SvPOK_only(dstr); |
463ee0b2 | 4123 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
4124 | SvLEN_set(dstr, SvLEN(sstr)); |
4125 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 4126 | |
79072805 | 4127 | SvTEMP_off(dstr); |
645c22ef | 4128 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
4129 | SvPV_set(sstr, Nullch); |
4130 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
4131 | SvCUR_set(sstr, 0); |
4132 | SvTEMP_off(sstr); | |
79072805 | 4133 | } |
645c22ef | 4134 | else { /* have to copy actual string */ |
8990e307 | 4135 | STRLEN len = SvCUR(sstr); |
645c22ef | 4136 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
fdac8c4b | 4137 | Move(SvPVX_const(sstr),SvPVX(dstr),len,char); |
8990e307 LW |
4138 | SvCUR_set(dstr, len); |
4139 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 4140 | (void)SvPOK_only(dstr); |
79072805 | 4141 | } |
9aa983d2 | 4142 | if (sflags & SVf_UTF8) |
a7cb1f99 | 4143 | SvUTF8_on(dstr); |
8990e307 | 4144 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4145 | SvNOKp_on(dstr); |
4146 | if (sflags & SVf_NOK) | |
4147 | SvFLAGS(dstr) |= SVf_NOK; | |
0da6cfda | 4148 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 | 4149 | } |
8990e307 | 4150 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4151 | (void)SvIOKp_on(dstr); |
4152 | if (sflags & SVf_IOK) | |
4153 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4154 | if (sflags & SVf_IVisUV) |
25da4f38 | 4155 | SvIsUV_on(dstr); |
0da6cfda | 4156 | SvIV_set(dstr, SvIVX(sstr)); |
79072805 | 4157 | } |
7d7ce6cc JH |
4158 | if ( SvVOK(sstr) ) { |
4159 | MAGIC *smg = mg_find(sstr,PERL_MAGIC_vstring); | |
4160 | sv_magic(dstr, NULL, PERL_MAGIC_vstring, | |
4161 | smg->mg_ptr, smg->mg_len); | |
4162 | SvRMAGICAL_on(dstr); | |
4163 | } | |
79072805 | 4164 | } |
8990e307 | 4165 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
4166 | if (sflags & SVf_IOK) |
4167 | (void)SvIOK_only(dstr); | |
4168 | else { | |
9cbac4c7 DM |
4169 | (void)SvOK_off(dstr); |
4170 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
4171 | } |
4172 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 4173 | if (sflags & SVf_IVisUV) |
25da4f38 | 4174 | SvIsUV_on(dstr); |
0da6cfda | 4175 | SvIV_set(dstr, SvIVX(sstr)); |
3332b3c1 JH |
4176 | if (sflags & SVp_NOK) { |
4177 | if (sflags & SVf_NOK) | |
4178 | (void)SvNOK_on(dstr); | |
4179 | else | |
4180 | (void)SvNOKp_on(dstr); | |
0da6cfda | 4181 | SvNV_set(dstr, SvNVX(sstr)); |
3332b3c1 JH |
4182 | } |
4183 | } | |
4184 | else if (sflags & SVp_NOK) { | |
4185 | if (sflags & SVf_NOK) | |
4186 | (void)SvNOK_only(dstr); | |
4187 | else { | |
9cbac4c7 | 4188 | (void)SvOK_off(dstr); |
3332b3c1 JH |
4189 | SvNOKp_on(dstr); |
4190 | } | |
0da6cfda | 4191 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 LW |
4192 | } |
4193 | else { | |
20408e3c | 4194 | if (dtype == SVt_PVGV) { |
e476b1b5 | 4195 | if (ckWARN(WARN_MISC)) |
9014280d | 4196 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
4197 | } |
4198 | else | |
4199 | (void)SvOK_off(dstr); | |
a0d0e21e | 4200 | } |
27c9684d AP |
4201 | if (SvTAINTED(sstr)) |
4202 | SvTAINT(dstr); | |
79072805 LW |
4203 | } |
4204 | ||
954c1994 GS |
4205 | /* |
4206 | =for apidoc sv_setsv_mg | |
4207 | ||
4208 | Like C<sv_setsv>, but also handles 'set' magic. | |
4209 | ||
4210 | =cut | |
4211 | */ | |
4212 | ||
79072805 | 4213 | void |
864dbfa3 | 4214 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4215 | { |
4216 | sv_setsv(dstr,sstr); | |
4217 | SvSETMAGIC(dstr); | |
4218 | } | |
4219 | ||
954c1994 GS |
4220 | /* |
4221 | =for apidoc sv_setpvn | |
4222 | ||
4223 | Copies a string into an SV. The C<len> parameter indicates the number of | |
611e9550 NC |
4224 | bytes to be copied. If the C<ptr> argument is NULL the SV will become |
4225 | undefined. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
954c1994 GS |
4226 | |
4227 | =cut | |
4228 | */ | |
4229 | ||
ef50df4b | 4230 | void |
864dbfa3 | 4231 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4232 | { |
c6f8c383 | 4233 | register char *dptr; |
22c522df | 4234 | |
2213622d | 4235 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4236 | if (!ptr) { |
a0d0e21e | 4237 | (void)SvOK_off(sv); |
463ee0b2 LW |
4238 | return; |
4239 | } | |
22c522df JH |
4240 | else { |
4241 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
8c18bf38 | 4242 | const IV iv = len; |
9c5ffd7c JH |
4243 | if (iv < 0) |
4244 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4245 | } |
6fc92669 | 4246 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4247 | |
71a0dd65 | 4248 | dptr = SvGROW(sv, len + 1); |
c6f8c383 GA |
4249 | Move(ptr,dptr,len,char); |
4250 | dptr[len] = '\0'; | |
79072805 | 4251 | SvCUR_set(sv, len); |
1aa99e6b | 4252 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4253 | SvTAINT(sv); |
79072805 LW |
4254 | } |
4255 | ||
954c1994 GS |
4256 | /* |
4257 | =for apidoc sv_setpvn_mg | |
4258 | ||
4259 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4260 | ||
4261 | =cut | |
4262 | */ | |
4263 | ||
79072805 | 4264 | void |
864dbfa3 | 4265 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4266 | { |
4267 | sv_setpvn(sv,ptr,len); | |
4268 | SvSETMAGIC(sv); | |
4269 | } | |
4270 | ||
954c1994 GS |
4271 | /* |
4272 | =for apidoc sv_setpv | |
4273 | ||
4274 | Copies a string into an SV. The string must be null-terminated. Does not | |
4275 | handle 'set' magic. See C<sv_setpv_mg>. | |
4276 | ||
4277 | =cut | |
4278 | */ | |
4279 | ||
ef50df4b | 4280 | void |
864dbfa3 | 4281 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4282 | { |
4283 | register STRLEN len; | |
4284 | ||
2213622d | 4285 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4286 | if (!ptr) { |
a0d0e21e | 4287 | (void)SvOK_off(sv); |
463ee0b2 LW |
4288 | return; |
4289 | } | |
79072805 | 4290 | len = strlen(ptr); |
6fc92669 | 4291 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4292 | |
79072805 | 4293 | SvGROW(sv, len + 1); |
463ee0b2 | 4294 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4295 | SvCUR_set(sv, len); |
1aa99e6b | 4296 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4297 | SvTAINT(sv); |
4298 | } | |
4299 | ||
954c1994 GS |
4300 | /* |
4301 | =for apidoc sv_setpv_mg | |
4302 | ||
4303 | Like C<sv_setpv>, but also handles 'set' magic. | |
4304 | ||
4305 | =cut | |
4306 | */ | |
4307 | ||
463ee0b2 | 4308 | void |
864dbfa3 | 4309 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4310 | { |
4311 | sv_setpv(sv,ptr); | |
4312 | SvSETMAGIC(sv); | |
4313 | } | |
4314 | ||
954c1994 GS |
4315 | /* |
4316 | =for apidoc sv_usepvn | |
4317 | ||
4318 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4319 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4320 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4321 | string length, C<len>, must be supplied. This function will realloc the | |
4322 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4323 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4324 | See C<sv_usepvn_mg>. | |
4325 | ||
4326 | =cut | |
4327 | */ | |
4328 | ||
ef50df4b | 4329 | void |
864dbfa3 | 4330 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4331 | { |
9eaeeaca | 4332 | STRLEN allocate; |
2213622d | 4333 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4334 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4335 | if (!ptr) { |
a0d0e21e | 4336 | (void)SvOK_off(sv); |
463ee0b2 LW |
4337 | return; |
4338 | } | |
fdac8c4b | 4339 | if (SvPVX_const(sv)) |
676a626c | 4340 | SvPV_free(sv); |
9eaeeaca NC |
4341 | |
4342 | allocate = PERL_STRLEN_ROUNDUP(len + 1); | |
4343 | ptr = saferealloc (ptr, allocate); | |
0da6cfda | 4344 | SvPV_set(sv, ptr); |
463ee0b2 | 4345 | SvCUR_set(sv, len); |
9eaeeaca | 4346 | SvLEN_set(sv, allocate); |
463ee0b2 | 4347 | *SvEND(sv) = '\0'; |
1aa99e6b | 4348 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4349 | SvTAINT(sv); |
79072805 LW |
4350 | } |
4351 | ||
954c1994 GS |
4352 | /* |
4353 | =for apidoc sv_usepvn_mg | |
4354 | ||
4355 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4356 | ||
4357 | =cut | |
4358 | */ | |
4359 | ||
ef50df4b | 4360 | void |
864dbfa3 | 4361 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4362 | { |
51c1089b | 4363 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4364 | SvSETMAGIC(sv); |
4365 | } | |
4366 | ||
645c22ef DM |
4367 | /* |
4368 | =for apidoc sv_force_normal_flags | |
4369 | ||
4370 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4371 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4372 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4373 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4374 | ||
4375 | =cut | |
4376 | */ | |
4377 | ||
6fc92669 | 4378 | void |
840a7b70 | 4379 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4380 | { |
2213622d | 4381 | if (SvREADONLY(sv)) { |
1c846c1f | 4382 | if (SvFAKE(sv)) { |
e4a519ba | 4383 | const char * const pvx = SvPVX_const(sv); |
4996ee04 | 4384 | const STRLEN len = SvCUR(sv); |
e4057cfc | 4385 | const U32 hash = SvSHARED_HASH(sv); |
1624793d NC |
4386 | SvFAKE_off(sv); |
4387 | SvREADONLY_off(sv); | |
1c846c1f | 4388 | SvGROW(sv, len + 1); |
fdac8c4b | 4389 | Move(pvx,SvPVX_const(sv),len,char); |
1c846c1f | 4390 | *SvEND(sv) = '\0'; |
25716404 | 4391 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f | 4392 | } |
ef7b71f0 | 4393 | else if (IN_PERL_RUNTIME) |
cea2e8a9 | 4394 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4395 | } |
2213622d | 4396 | if (SvROK(sv)) |
840a7b70 | 4397 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4398 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4399 | sv_unglob(sv); | |
0f15f207 | 4400 | } |
1c846c1f | 4401 | |
645c22ef DM |
4402 | /* |
4403 | =for apidoc sv_force_normal | |
4404 | ||
4405 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4406 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4407 | an xpvmg. See also C<sv_force_normal_flags>. | |
4408 | ||
4409 | =cut | |
4410 | */ | |
4411 | ||
840a7b70 IZ |
4412 | void |
4413 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4414 | { | |
4415 | sv_force_normal_flags(sv, 0); | |
4416 | } | |
4417 | ||
954c1994 GS |
4418 | /* |
4419 | =for apidoc sv_chop | |
4420 | ||
1c846c1f | 4421 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4422 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4423 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4424 | string. Uses the "OOK hack". |
fdac8c4b | 4425 | Beware: after this function returns, C<ptr> and SvPVX_const(sv) may no longer |
b9219079 | 4426 | refer to the same chunk of data. |
954c1994 GS |
4427 | |
4428 | =cut | |
4429 | */ | |
4430 | ||
79072805 | 4431 | void |
645c22ef | 4432 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4433 | { |
4434 | register STRLEN delta; | |
a0d0e21e | 4435 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4436 | return; |
fdac8c4b | 4437 | delta = ptr - SvPVX_const(sv); |
2213622d | 4438 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4439 | if (SvTYPE(sv) < SVt_PVIV) |
4440 | sv_upgrade(sv,SVt_PVIV); | |
4441 | ||
4442 | if (!SvOOK(sv)) { | |
50483b2c | 4443 | if (!SvLEN(sv)) { /* make copy of shared string */ |
fdac8c4b | 4444 | const char *pvx = SvPVX_const(sv); |
e4057cfc | 4445 | const STRLEN len = SvCUR(sv); |
50483b2c | 4446 | SvGROW(sv, len + 1); |
fdac8c4b | 4447 | Move(pvx,SvPVX_const(sv),len,char); |
50483b2c JD |
4448 | *SvEND(sv) = '\0'; |
4449 | } | |
0da6cfda | 4450 | SvIV_set(sv, 0); |
e33c26d0 JH |
4451 | /* Same SvOOK_on but SvOOK_on does a SvIOK_off |
4452 | and we do that anyway inside the SvNIOK_off | |
4453 | */ | |
4454 | SvFLAGS(sv) |= SVf_OOK; | |
79072805 | 4455 | } |
e33c26d0 | 4456 | SvNIOK_off(sv); |
a8dc4fe8 SP |
4457 | SvLEN_set(sv, SvLEN(sv) - delta); |
4458 | SvCUR_set(sv, SvCUR(sv) - delta); | |
0da6cfda SP |
4459 | SvPV_set(sv, SvPVX(sv) + delta); |
4460 | SvIV_set(sv, SvIVX(sv) + delta); | |
79072805 LW |
4461 | } |
4462 | ||
d34f9d2e JH |
4463 | /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags(); |
4464 | * this function provided for binary compatibility only | |
4465 | */ | |
4466 | ||
4467 | void | |
4468 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) | |
4469 | { | |
4470 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); | |
4471 | } | |
4472 | ||
954c1994 GS |
4473 | /* |
4474 | =for apidoc sv_catpvn | |
4475 | ||
4476 | Concatenates the string onto the end of the string which is in the SV. The | |
cd458e05 JH |
4477 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4478 | status set, then the bytes appended should be valid UTF-8. | |
d5ce4a7c | 4479 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. |
954c1994 | 4480 | |
8d6d96c1 HS |
4481 | =for apidoc sv_catpvn_flags |
4482 | ||
4483 | Concatenates the string onto the end of the string which is in the SV. The | |
cd458e05 JH |
4484 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4485 | status set, then the bytes appended should be valid UTF-8. | |
8d6d96c1 HS |
4486 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if |
4487 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4488 | in terms of this function. | |
4489 | ||
4490 | =cut | |
4491 | */ | |
4492 | ||
4493 | void | |
4494 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4495 | { | |
4496 | STRLEN dlen; | |
24c2fff4 | 4497 | const char *dstr = SvPV_force_flags(dsv, dlen, flags); |
8d6d96c1 | 4498 | |
8d6d96c1 HS |
4499 | SvGROW(dsv, dlen + slen + 1); |
4500 | if (sstr == dstr) | |
fdac8c4b | 4501 | sstr = SvPVX_const(dsv); |
8d6d96c1 | 4502 | Move(sstr, SvPVX(dsv) + dlen, slen, char); |
a8dc4fe8 | 4503 | SvCUR_set(dsv, SvCUR(dsv) + slen); |
8d6d96c1 HS |
4504 | *SvEND(dsv) = '\0'; |
4505 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4506 | SvTAINT(dsv); | |
79072805 LW |
4507 | } |
4508 | ||
954c1994 GS |
4509 | /* |
4510 | =for apidoc sv_catpvn_mg | |
4511 | ||
4512 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4513 | ||
4514 | =cut | |
4515 | */ | |
4516 | ||
79072805 | 4517 | void |
864dbfa3 | 4518 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4519 | { |
4520 | sv_catpvn(sv,ptr,len); | |
4521 | SvSETMAGIC(sv); | |
4522 | } | |
4523 | ||
d34f9d2e JH |
4524 | /* sv_catsv() is now a macro using Perl_sv_catsv_flags(); |
4525 | * this function provided for binary compatibility only | |
4526 | */ | |
4527 | ||
4528 | void | |
4529 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4530 | { | |
4531 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4532 | } | |
4533 | ||
954c1994 GS |
4534 | /* |
4535 | =for apidoc sv_catsv | |
4536 | ||
13e8c8e3 JH |
4537 | Concatenates the string from SV C<ssv> onto the end of the string in |
4538 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4539 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4540 | |
8d6d96c1 HS |
4541 | =for apidoc sv_catsv_flags |
4542 | ||
4543 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4544 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4545 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4546 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4547 | ||
4548 | =cut */ | |
4549 | ||
ef50df4b | 4550 | void |
8d6d96c1 | 4551 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4552 | { |
287c580e | 4553 | const char *spv; |
13e8c8e3 | 4554 | STRLEN slen; |
46199a12 | 4555 | if (!ssv) |
79072805 | 4556 | return; |
287c580e | 4557 | if ((spv = SvPV_const(ssv, slen))) { |
4fd84b44 AD |
4558 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4559 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4560 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4561 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4562 | dsv->sv_flags doesn't have that bit set. |
4563 | Andy Dougherty 12 Oct 2001 | |
4564 | */ | |
481da01c | 4565 | const I32 sutf8 = DO_UTF8(ssv); |
4fd84b44 | 4566 | I32 dutf8; |
13e8c8e3 | 4567 | |
8d6d96c1 HS |
4568 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4569 | mg_get(dsv); | |
4570 | dutf8 = DO_UTF8(dsv); | |
4571 | ||
4572 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4573 | if (dutf8) { |
46199a12 | 4574 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4575 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4576 | |
46199a12 | 4577 | sv_utf8_upgrade(csv); |
23c2bb70 | 4578 | spv = SvPV_const(csv, slen); |
13e8c8e3 | 4579 | } |
8d6d96c1 HS |
4580 | else |
4581 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4582 | } |
8d6d96c1 | 4583 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4584 | } |
79072805 LW |
4585 | } |
4586 | ||
954c1994 GS |
4587 | /* |
4588 | =for apidoc sv_catsv_mg | |
4589 | ||
4590 | Like C<sv_catsv>, but also handles 'set' magic. | |
4591 | ||
4592 | =cut | |
4593 | */ | |
4594 | ||
79072805 | 4595 | void |
46199a12 | 4596 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4597 | { |
46199a12 JH |
4598 | sv_catsv(dsv,ssv); |
4599 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4600 | } |
4601 | ||
954c1994 GS |
4602 | /* |
4603 | =for apidoc sv_catpv | |
4604 | ||
4605 | Concatenates the string onto the end of the string which is in the SV. | |
cd458e05 JH |
4606 | If the SV has the UTF-8 status set, then the bytes appended should be |
4607 | valid UTF-8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4608 | |
d5ce4a7c | 4609 | =cut */ |
954c1994 | 4610 | |
ef50df4b | 4611 | void |
0c981600 | 4612 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4613 | { |
4614 | register STRLEN len; | |
463ee0b2 | 4615 | STRLEN tlen; |
748a9306 | 4616 | char *junk; |
79072805 | 4617 | |
0c981600 | 4618 | if (!ptr) |
79072805 | 4619 | return; |
748a9306 | 4620 | junk = SvPV_force(sv, tlen); |
0c981600 | 4621 | len = strlen(ptr); |
463ee0b2 | 4622 | SvGROW(sv, tlen + len + 1); |
0c981600 | 4623 | if (ptr == junk) |
fdac8c4b | 4624 | ptr = SvPVX_const(sv); |
0c981600 | 4625 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
a8dc4fe8 | 4626 | SvCUR_set(sv, SvCUR(sv) + len); |
d41ff1b8 | 4627 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4628 | SvTAINT(sv); |
79072805 LW |
4629 | } |
4630 | ||
954c1994 GS |
4631 | /* |
4632 | =for apidoc sv_catpv_mg | |
4633 | ||
4634 | Like C<sv_catpv>, but also handles 'set' magic. | |
4635 | ||
4636 | =cut | |
4637 | */ | |
4638 | ||
ef50df4b | 4639 | void |
0c981600 | 4640 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4641 | { |
0c981600 | 4642 | sv_catpv(sv,ptr); |
ef50df4b GS |
4643 | SvSETMAGIC(sv); |
4644 | } | |
4645 | ||
645c22ef DM |
4646 | /* |
4647 | =for apidoc newSV | |
4648 | ||
4649 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4650 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4651 | macro. | |
4652 | ||
4653 | =cut | |
4654 | */ | |
4655 | ||
79072805 | 4656 | SV * |
864dbfa3 | 4657 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4658 | { |
4659 | register SV *sv; | |
1c846c1f | 4660 | |
4561caa4 | 4661 | new_SV(sv); |
79072805 LW |
4662 | if (len) { |
4663 | sv_upgrade(sv, SVt_PV); | |
4664 | SvGROW(sv, len + 1); | |
4665 | } | |
4666 | return sv; | |
4667 | } | |
954c1994 | 4668 | /* |
92110913 | 4669 | =for apidoc sv_magicext |
954c1994 | 4670 | |
68795e93 | 4671 | Adds magic to an SV, upgrading it if necessary. Applies the |
af70ddd4 | 4672 | supplied vtable and returns a pointer to the magic added. |
92110913 | 4673 | |
af70ddd4 NC |
4674 | Note that C<sv_magicext> will allow things that C<sv_magic> will not. |
4675 | In particular, you can add magic to SvREADONLY SVs, and add more than | |
4676 | one instance of the same 'how'. | |
645c22ef | 4677 | |
af70ddd4 NC |
4678 | If C<namlen> is greater than zero then a C<savepvn> I<copy> of C<name> is |
4679 | stored, if C<namlen> is zero then C<name> is stored as-is and - as another | |
4680 | special case - if C<(name && namlen == HEf_SVKEY)> then C<name> is assumed | |
4681 | to contain an C<SV*> and is stored as-is with its REFCNT incremented. | |
92110913 | 4682 | |
af70ddd4 | 4683 | (This is now used as a subroutine by C<sv_magic>.) |
954c1994 GS |
4684 | |
4685 | =cut | |
4686 | */ | |
92110913 NIS |
4687 | MAGIC * |
4688 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, MGVTBL *vtable, | |
4689 | const char* name, I32 namlen) | |
79072805 LW |
4690 | { |
4691 | MAGIC* mg; | |
68795e93 | 4692 | |
92110913 NIS |
4693 | if (SvTYPE(sv) < SVt_PVMG) { |
4694 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 4695 | } |
cd7a8267 | 4696 | Newxz(mg, 1, MAGIC); |
79072805 | 4697 | mg->mg_moremagic = SvMAGIC(sv); |
a8dc4fe8 | 4698 | SvMAGIC_set(sv, mg); |
75f9d97a | 4699 | |
0df18620 NC |
4700 | /* Sometimes a magic contains a reference loop, where the sv and |
4701 | object refer to each other. To prevent a reference loop that | |
4702 | would prevent such objects being freed, we look for such loops | |
4703 | and if we find one we avoid incrementing the object refcount. | |
87f0b213 JH |
4704 | |
4705 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
8ccffa6a | 4706 | have its REFCNT incremented to keep it in existence. |
87f0b213 JH |
4707 | |
4708 | */ | |
14befaf4 DM |
4709 | if (!obj || obj == sv || |
4710 | how == PERL_MAGIC_arylen || | |
4711 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4712 | (SvTYPE(obj) == SVt_PVGV && |
4713 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4714 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 4715 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 4716 | { |
8990e307 | 4717 | mg->mg_obj = obj; |
75f9d97a | 4718 | } |
85e6fe83 | 4719 | else { |
8990e307 | 4720 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4721 | mg->mg_flags |= MGf_REFCOUNTED; |
4722 | } | |
8ccffa6a YST |
4723 | |
4724 | /* Normal self-ties simply pass a null object, and instead of | |
4725 | using mg_obj directly, use the SvTIED_obj macro to produce a | |
4726 | new RV as needed. For glob "self-ties", we are tieing the PVIO | |
4727 | with an RV obj pointing to the glob containing the PVIO. In | |
4728 | this case, to avoid a reference loop, we need to weaken the | |
4729 | reference. | |
4730 | */ | |
4731 | ||
4732 | if (how == PERL_MAGIC_tiedscalar && SvTYPE(sv) == SVt_PVIO && | |
4733 | obj && SvROK(obj) && GvIO(SvRV(obj)) == (IO*)sv) | |
4734 | { | |
4735 | sv_rvweaken(obj); | |
4736 | } | |
4737 | ||
79072805 | 4738 | mg->mg_type = how; |
565764a8 | 4739 | mg->mg_len = namlen; |
9cbac4c7 | 4740 | if (name) { |
92110913 | 4741 | if (namlen > 0) |
1edc1566 | 4742 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4743 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4744 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4745 | else |
92110913 | 4746 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4747 | } |
92110913 | 4748 | mg->mg_virtual = vtable; |
68795e93 | 4749 | |
92110913 NIS |
4750 | mg_magical(sv); |
4751 | if (SvGMAGICAL(sv)) | |
4752 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4753 | return mg; | |
4754 | } | |
4755 | ||
4756 | /* | |
4757 | =for apidoc sv_magic | |
1c846c1f | 4758 | |
92110913 NIS |
4759 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4760 | then adds a new magic item of type C<how> to the head of the magic list. | |
4761 | ||
af70ddd4 NC |
4762 | See C<sv_magicext> (which C<sv_magic> now calls) for a description of the |
4763 | handling of the C<name> and C<namlen> arguments. | |
4764 | ||
0df18620 NC |
4765 | You need to use C<sv_magicext> to add magic to SvREADONLY SVs and also |
4766 | to add more than one instance of the same 'how'. | |
4767 | ||
92110913 NIS |
4768 | =cut |
4769 | */ | |
4770 | ||
4771 | void | |
4772 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4773 | { |
c05e0e2f | 4774 | const MGVTBL *vtable = 0; |
92110913 | 4775 | MAGIC* mg; |
92110913 NIS |
4776 | |
4777 | if (SvREADONLY(sv)) { | |
ef7b71f0 | 4778 | if (IN_PERL_RUNTIME |
92110913 NIS |
4779 | && how != PERL_MAGIC_regex_global |
4780 | && how != PERL_MAGIC_bm | |
4781 | && how != PERL_MAGIC_fm | |
4782 | && how != PERL_MAGIC_sv | |
6125ae81 | 4783 | && how != PERL_MAGIC_backref |
92110913 NIS |
4784 | ) |
4785 | { | |
4786 | Perl_croak(aTHX_ PL_no_modify); | |
4787 | } | |
4788 | } | |
4789 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
4790 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
4791 | /* sv_magic() refuses to add a magic of the same 'how' as an |
4792 | existing one | |
92110913 NIS |
4793 | */ |
4794 | if (how == PERL_MAGIC_taint) | |
4795 | mg->mg_len |= 1; | |
4796 | return; | |
4797 | } | |
4798 | } | |
68795e93 | 4799 | |
79072805 | 4800 | switch (how) { |
14befaf4 | 4801 | case PERL_MAGIC_sv: |
92110913 | 4802 | vtable = &PL_vtbl_sv; |
79072805 | 4803 | break; |
14befaf4 | 4804 | case PERL_MAGIC_overload: |
92110913 | 4805 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 4806 | break; |
14befaf4 | 4807 | case PERL_MAGIC_overload_elem: |
92110913 | 4808 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 4809 | break; |
14befaf4 | 4810 | case PERL_MAGIC_overload_table: |
92110913 | 4811 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 4812 | break; |
14befaf4 | 4813 | case PERL_MAGIC_bm: |
92110913 | 4814 | vtable = &PL_vtbl_bm; |
79072805 | 4815 | break; |
14befaf4 | 4816 | case PERL_MAGIC_regdata: |
92110913 | 4817 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 4818 | break; |
14befaf4 | 4819 | case PERL_MAGIC_regdatum: |
92110913 | 4820 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 4821 | break; |
14befaf4 | 4822 | case PERL_MAGIC_env: |
92110913 | 4823 | vtable = &PL_vtbl_env; |
79072805 | 4824 | break; |
14befaf4 | 4825 | case PERL_MAGIC_fm: |
92110913 | 4826 | vtable = &PL_vtbl_fm; |
55497cff | 4827 | break; |
14befaf4 | 4828 | case PERL_MAGIC_envelem: |
92110913 | 4829 | vtable = &PL_vtbl_envelem; |
79072805 | 4830 | break; |
14befaf4 | 4831 | case PERL_MAGIC_regex_global: |
92110913 | 4832 | vtable = &PL_vtbl_mglob; |
93a17b20 | 4833 | break; |
14befaf4 | 4834 | case PERL_MAGIC_isa: |
92110913 | 4835 | vtable = &PL_vtbl_isa; |
463ee0b2 | 4836 | break; |
14befaf4 | 4837 | case PERL_MAGIC_isaelem: |
92110913 | 4838 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 4839 | break; |
14befaf4 | 4840 | case PERL_MAGIC_nkeys: |
92110913 | 4841 | vtable = &PL_vtbl_nkeys; |
16660edb | 4842 | break; |
14befaf4 | 4843 | case PERL_MAGIC_dbfile: |
92110913 | 4844 | vtable = 0; |
93a17b20 | 4845 | break; |
14befaf4 | 4846 | case PERL_MAGIC_dbline: |
92110913 | 4847 | vtable = &PL_vtbl_dbline; |
79072805 | 4848 | break; |
4d1ff10f | 4849 | #ifdef USE_5005THREADS |
14befaf4 | 4850 | case PERL_MAGIC_mutex: |
92110913 | 4851 | vtable = &PL_vtbl_mutex; |
f93b4edd | 4852 | break; |
4d1ff10f | 4853 | #endif /* USE_5005THREADS */ |
36477c24 | 4854 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4855 | case PERL_MAGIC_collxfrm: |
92110913 | 4856 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 4857 | break; |
36477c24 | 4858 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4859 | case PERL_MAGIC_tied: |
92110913 | 4860 | vtable = &PL_vtbl_pack; |
463ee0b2 | 4861 | break; |
14befaf4 DM |
4862 | case PERL_MAGIC_tiedelem: |
4863 | case PERL_MAGIC_tiedscalar: | |
92110913 | 4864 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 4865 | break; |
14befaf4 | 4866 | case PERL_MAGIC_qr: |
92110913 | 4867 | vtable = &PL_vtbl_regexp; |
c277df42 | 4868 | break; |
14befaf4 | 4869 | case PERL_MAGIC_sig: |
92110913 | 4870 | vtable = &PL_vtbl_sig; |
79072805 | 4871 | break; |
14befaf4 | 4872 | case PERL_MAGIC_sigelem: |
92110913 | 4873 | vtable = &PL_vtbl_sigelem; |
79072805 | 4874 | break; |
14befaf4 | 4875 | case PERL_MAGIC_taint: |
92110913 | 4876 | vtable = &PL_vtbl_taint; |
463ee0b2 | 4877 | break; |
14befaf4 | 4878 | case PERL_MAGIC_uvar: |
92110913 | 4879 | vtable = &PL_vtbl_uvar; |
79072805 | 4880 | break; |
14befaf4 | 4881 | case PERL_MAGIC_vec: |
92110913 | 4882 | vtable = &PL_vtbl_vec; |
79072805 | 4883 | break; |
7d7ce6cc JH |
4884 | case PERL_MAGIC_vstring: |
4885 | vtable = 0; | |
4886 | break; | |
323eb6b5 JH |
4887 | case PERL_MAGIC_utf8: |
4888 | vtable = &PL_vtbl_utf8; | |
4889 | break; | |
14befaf4 | 4890 | case PERL_MAGIC_substr: |
92110913 | 4891 | vtable = &PL_vtbl_substr; |
79072805 | 4892 | break; |
14befaf4 | 4893 | case PERL_MAGIC_defelem: |
92110913 | 4894 | vtable = &PL_vtbl_defelem; |
5f05dabc | 4895 | break; |
14befaf4 | 4896 | case PERL_MAGIC_glob: |
92110913 | 4897 | vtable = &PL_vtbl_glob; |
79072805 | 4898 | break; |
14befaf4 | 4899 | case PERL_MAGIC_arylen: |
92110913 | 4900 | vtable = &PL_vtbl_arylen; |
79072805 | 4901 | break; |
14befaf4 | 4902 | case PERL_MAGIC_pos: |
92110913 | 4903 | vtable = &PL_vtbl_pos; |
a0d0e21e | 4904 | break; |
14befaf4 | 4905 | case PERL_MAGIC_backref: |
92110913 | 4906 | vtable = &PL_vtbl_backref; |
810b8aa5 | 4907 | break; |
14befaf4 DM |
4908 | case PERL_MAGIC_ext: |
4909 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4910 | /* Useful for attaching extension internal data to perl vars. */ |
4911 | /* Note that multiple extensions may clash if magical scalars */ | |
4912 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 4913 | break; |
79072805 | 4914 | default: |
14befaf4 | 4915 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4916 | } |
68795e93 | 4917 | |
92110913 NIS |
4918 | /* Rest of work is done else where */ |
4919 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); | |
68795e93 | 4920 | |
92110913 NIS |
4921 | switch (how) { |
4922 | case PERL_MAGIC_taint: | |
4923 | mg->mg_len = 1; | |
4924 | break; | |
4925 | case PERL_MAGIC_ext: | |
4926 | case PERL_MAGIC_dbfile: | |
4927 | SvRMAGICAL_on(sv); | |
4928 | break; | |
4929 | } | |
463ee0b2 LW |
4930 | } |
4931 | ||
c461cf8f JH |
4932 | /* |
4933 | =for apidoc sv_unmagic | |
4934 | ||
645c22ef | 4935 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4936 | |
4937 | =cut | |
4938 | */ | |
4939 | ||
463ee0b2 | 4940 | int |
864dbfa3 | 4941 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4942 | { |
4943 | MAGIC* mg; | |
4944 | MAGIC** mgp; | |
91bba347 | 4945 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4946 | return 0; |
4947 | mgp = &SvMAGIC(sv); | |
4948 | for (mg = *mgp; mg; mg = *mgp) { | |
4949 | if (mg->mg_type == type) { | |
c05e0e2f | 4950 | const MGVTBL* const vtbl = mg->mg_virtual; |
463ee0b2 | 4951 | *mgp = mg->mg_moremagic; |
1d7c1841 | 4952 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4953 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4954 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 4955 | if (mg->mg_len > 0) |
1edc1566 | 4956 | Safefree(mg->mg_ptr); |
565764a8 | 4957 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4958 | SvREFCNT_dec((SV*)mg->mg_ptr); |
323eb6b5 JH |
4959 | else if (mg->mg_type == PERL_MAGIC_utf8 && mg->mg_ptr) |
4960 | Safefree(mg->mg_ptr); | |
9cbac4c7 | 4961 | } |
a0d0e21e LW |
4962 | if (mg->mg_flags & MGf_REFCOUNTED) |
4963 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4964 | Safefree(mg); |
4965 | } | |
4966 | else | |
4967 | mgp = &mg->mg_moremagic; | |
79072805 | 4968 | } |
91bba347 | 4969 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4970 | SvMAGICAL_off(sv); |
06759ea0 | 4971 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4972 | } |
4973 | ||
4974 | return 0; | |
79072805 LW |
4975 | } |
4976 | ||
c461cf8f JH |
4977 | /* |
4978 | =for apidoc sv_rvweaken | |
4979 | ||
645c22ef DM |
4980 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4981 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4982 | push a back-reference to this RV onto the array of backreferences | |
4983 | associated with that magic. | |
c461cf8f JH |
4984 | |
4985 | =cut | |
4986 | */ | |
4987 | ||
810b8aa5 | 4988 | SV * |
864dbfa3 | 4989 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4990 | { |
4991 | SV *tsv; | |
4992 | if (!SvOK(sv)) /* let undefs pass */ | |
4993 | return sv; | |
4994 | if (!SvROK(sv)) | |
cea2e8a9 | 4995 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4996 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4997 | if (ckWARN(WARN_MISC)) |
9014280d | 4998 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
4999 | return sv; |
5000 | } | |
5001 | tsv = SvRV(sv); | |
5002 | sv_add_backref(tsv, sv); | |
5003 | SvWEAKREF_on(sv); | |
1c846c1f | 5004 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
5005 | return sv; |
5006 | } | |
5007 | ||
645c22ef DM |
5008 | /* Give tsv backref magic if it hasn't already got it, then push a |
5009 | * back-reference to sv onto the array associated with the backref magic. | |
5010 | */ | |
5011 | ||
810b8aa5 | 5012 | STATIC void |
cea2e8a9 | 5013 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
5014 | { |
5015 | AV *av; | |
5016 | MAGIC *mg; | |
14befaf4 | 5017 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
5018 | av = (AV*)mg->mg_obj; |
5019 | else { | |
5020 | av = newAV(); | |
14befaf4 | 5021 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
219ef941 JH |
5022 | /* av now has a refcnt of 2, which avoids it getting freed |
5023 | * before us during global cleanup. The extra ref is removed | |
5024 | * by magic_killbackrefs() when tsv is being freed */ | |
810b8aa5 | 5025 | } |
f8cf5370 | 5026 | if (AvFILLp(av) >= AvMAX(av)) { |
f8cf5370 JH |
5027 | av_extend(av, AvFILLp(av)+1); |
5028 | } | |
5029 | AvARRAY(av)[++AvFILLp(av)] = sv; /* av_push() */ | |
810b8aa5 GS |
5030 | } |
5031 | ||
645c22ef DM |
5032 | /* delete a back-reference to ourselves from the backref magic associated |
5033 | * with the SV we point to. | |
5034 | */ | |
5035 | ||
1c846c1f | 5036 | STATIC void |
cea2e8a9 | 5037 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
5038 | { |
5039 | AV *av; | |
5040 | SV **svp; | |
5041 | I32 i; | |
ce7d4f40 | 5042 | SV * const tsv = SvRV(sv); |
c04a4dfe | 5043 | MAGIC *mg = NULL; |
14befaf4 | 5044 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 5045 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
5046 | av = (AV *)mg->mg_obj; |
5047 | svp = AvARRAY(av); | |
0fa9aa63 NC |
5048 | /* We shouldn't be in here more than once, but for paranoia reasons lets |
5049 | not assume this. */ | |
5050 | for (i = AvFILLp(av); i >= 0; i--) { | |
5051 | if (svp[i] == sv) { | |
5052 | const SSize_t fill = AvFILLp(av); | |
5053 | if (i != fill) { | |
5054 | /* We weren't the last entry. | |
5055 | An unordered list has this property that you can take the | |
5056 | last element off the end to fill the hole, and it's still | |
5057 | an unordered list :-) | |
5058 | */ | |
5059 | svp[i] = svp[fill]; | |
5060 | } | |
5061 | svp[fill] = Nullsv; | |
5062 | AvFILLp(av) = fill - 1; | |
5063 | } | |
5064 | } | |
810b8aa5 GS |
5065 | } |
5066 | ||
954c1994 GS |
5067 | /* |
5068 | =for apidoc sv_insert | |
5069 | ||
5070 | Inserts a string at the specified offset/length within the SV. Similar to | |
5071 | the Perl substr() function. | |
5072 | ||
5073 | =cut | |
5074 | */ | |
5075 | ||
79072805 | 5076 | void |
864dbfa3 | 5077 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
5078 | { |
5079 | register char *big; | |
5080 | register char *mid; | |
5081 | register char *midend; | |
5082 | register char *bigend; | |
5083 | register I32 i; | |
6ff81951 | 5084 | STRLEN curlen; |
1c846c1f | 5085 | |
79072805 | 5086 | |
8990e307 | 5087 | if (!bigstr) |
cea2e8a9 | 5088 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 5089 | SvPV_force(bigstr, curlen); |
60fa28ff | 5090 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
5091 | if (offset + len > curlen) { |
5092 | SvGROW(bigstr, offset+len+1); | |
23c2bb70 | 5093 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); |
6ff81951 GS |
5094 | SvCUR_set(bigstr, offset+len); |
5095 | } | |
79072805 | 5096 | |
69b47968 | 5097 | SvTAINT(bigstr); |
79072805 LW |
5098 | i = littlelen - len; |
5099 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 5100 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
5101 | mid = big + offset + len; |
5102 | midend = bigend = big + SvCUR(bigstr); | |
5103 | bigend += i; | |
5104 | *bigend = '\0'; | |
5105 | while (midend > mid) /* shove everything down */ | |
5106 | *--bigend = *--midend; | |
5107 | Move(little,big+offset,littlelen,char); | |
a8dc4fe8 | 5108 | SvCUR_set(bigstr, SvCUR(bigstr) + i); |
79072805 LW |
5109 | SvSETMAGIC(bigstr); |
5110 | return; | |
5111 | } | |
5112 | else if (i == 0) { | |
463ee0b2 | 5113 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
5114 | SvSETMAGIC(bigstr); |
5115 | return; | |
5116 | } | |
5117 | ||
463ee0b2 | 5118 | big = SvPVX(bigstr); |
79072805 LW |
5119 | mid = big + offset; |
5120 | midend = mid + len; | |
5121 | bigend = big + SvCUR(bigstr); | |
5122 | ||
5123 | if (midend > bigend) | |
cea2e8a9 | 5124 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
5125 | |
5126 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
5127 | if (littlelen) { | |
5128 | Move(little, mid, littlelen,char); | |
5129 | mid += littlelen; | |
5130 | } | |
5131 | i = bigend - midend; | |
5132 | if (i > 0) { | |
5133 | Move(midend, mid, i,char); | |
5134 | mid += i; | |
5135 | } | |
5136 | *mid = '\0'; | |
5137 | SvCUR_set(bigstr, mid - big); | |
5138 | } | |
155aba94 | 5139 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
5140 | midend -= littlelen; |
5141 | mid = midend; | |
5142 | sv_chop(bigstr,midend-i); | |
5143 | big += i; | |
5144 | while (i--) | |
5145 | *--midend = *--big; | |
5146 | if (littlelen) | |
5147 | Move(little, mid, littlelen,char); | |
5148 | } | |
5149 | else if (littlelen) { | |
5150 | midend -= littlelen; | |
5151 | sv_chop(bigstr,midend); | |
5152 | Move(little,midend,littlelen,char); | |
5153 | } | |
5154 | else { | |
5155 | sv_chop(bigstr,midend); | |
5156 | } | |
5157 | SvSETMAGIC(bigstr); | |
5158 | } | |
5159 | ||
c461cf8f JH |
5160 | /* |
5161 | =for apidoc sv_replace | |
5162 | ||
5163 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
5164 | The target SV physically takes over ownership of the body of the source SV |
5165 | and inherits its flags; however, the target keeps any magic it owns, | |
5166 | and any magic in the source is discarded. | |
ff276b08 | 5167 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 5168 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
5169 | |
5170 | =cut | |
5171 | */ | |
79072805 LW |
5172 | |
5173 | void | |
864dbfa3 | 5174 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 | 5175 | { |
8c18bf38 | 5176 | const U32 refcnt = SvREFCNT(sv); |
2213622d | 5177 | SV_CHECK_THINKFIRST(sv); |
0453d815 | 5178 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 5179 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 5180 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
5181 | if (SvMAGICAL(nsv)) |
5182 | mg_free(nsv); | |
5183 | else | |
5184 | sv_upgrade(nsv, SVt_PVMG); | |
a8dc4fe8 | 5185 | SvMAGIC_set(nsv, SvMAGIC(sv)); |
a0d0e21e | 5186 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 | 5187 | SvMAGICAL_off(sv); |
a8dc4fe8 | 5188 | SvMAGIC_set(sv, NULL); |
93a17b20 | 5189 | } |
79072805 LW |
5190 | SvREFCNT(sv) = 0; |
5191 | sv_clear(sv); | |
477f5d66 | 5192 | assert(!SvREFCNT(sv)); |
79072805 LW |
5193 | StructCopy(nsv,sv,SV); |
5194 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 5195 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
007262b0 | 5196 | SvREFCNT(nsv) = 0; |
463ee0b2 | 5197 | del_SV(nsv); |
79072805 LW |
5198 | } |
5199 | ||
c461cf8f JH |
5200 | /* |
5201 | =for apidoc sv_clear | |
5202 | ||
645c22ef DM |
5203 | Clear an SV: call any destructors, free up any memory used by the body, |
5204 | and free the body itself. The SV's head is I<not> freed, although | |
5205 | its type is set to all 1's so that it won't inadvertently be assumed | |
5206 | to be live during global destruction etc. | |
5207 | This function should only be called when REFCNT is zero. Most of the time | |
5208 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
5209 | instead. | |
c461cf8f JH |
5210 | |
5211 | =cut | |
5212 | */ | |
5213 | ||
79072805 | 5214 | void |
864dbfa3 | 5215 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 5216 | { |
ec12f114 | 5217 | HV* stash; |
79072805 LW |
5218 | assert(sv); |
5219 | assert(SvREFCNT(sv) == 0); | |
5220 | ||
ed6116ce | 5221 | if (SvOBJECT(sv)) { |
3280af22 | 5222 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 5223 | dSP; |
d460ef45 | 5224 | do { |
481da01c | 5225 | CV* destructor; |
4e8e7886 | 5226 | stash = SvSTASH(sv); |
32251b26 | 5227 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 | 5228 | if (destructor) { |
ce7d4f40 | 5229 | SV* const tmpref = newRV(sv); |
3e5ba712 | 5230 | SvREADONLY_on(tmpref); /* DESTROY() could be naughty */ |
4e8e7886 | 5231 | ENTER; |
e788e7d3 | 5232 | PUSHSTACKi(PERLSI_DESTROY); |
4e8e7886 GS |
5233 | EXTEND(SP, 2); |
5234 | PUSHMARK(SP); | |
3e5ba712 | 5235 | PUSHs(tmpref); |
4e8e7886 | 5236 | PUTBACK; |
44389ee9 | 5237 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR|G_VOID); |
3e5ba712 JH |
5238 | |
5239 | ||
d3acc0f7 | 5240 | POPSTACK; |
3095d977 | 5241 | SPAGAIN; |
4e8e7886 | 5242 | LEAVE; |
3e5ba712 JH |
5243 | if(SvREFCNT(tmpref) < 2) { |
5244 | /* tmpref is not kept alive! */ | |
5245 | SvREFCNT(sv)--; | |
a8dc4fe8 | 5246 | SvRV_set(tmpref, NULL); |
3e5ba712 JH |
5247 | SvROK_off(tmpref); |
5248 | } | |
5249 | SvREFCNT_dec(tmpref); | |
4e8e7886 GS |
5250 | } |
5251 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 5252 | |
6f44e0a4 JP |
5253 | |
5254 | if (SvREFCNT(sv)) { | |
5255 | if (PL_in_clean_objs) | |
cea2e8a9 | 5256 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
26ab6a78 | 5257 | HvNAME_get(stash)); |
6f44e0a4 JP |
5258 | /* DESTROY gave object new lease on life */ |
5259 | return; | |
5260 | } | |
a0d0e21e | 5261 | } |
4e8e7886 | 5262 | |
a0d0e21e | 5263 | if (SvOBJECT(sv)) { |
4e8e7886 | 5264 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
5265 | SvOBJECT_off(sv); /* Curse the object. */ |
5266 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 5267 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 5268 | } |
463ee0b2 | 5269 | } |
524189f1 JH |
5270 | if (SvTYPE(sv) >= SVt_PVMG) { |
5271 | if (SvMAGIC(sv)) | |
5272 | mg_free(sv); | |
2098fb77 | 5273 | if (SvTYPE(sv) == SVt_PVMG && SvFLAGS(sv) & SVpad_TYPED) |
524189f1 JH |
5274 | SvREFCNT_dec(SvSTASH(sv)); |
5275 | } | |
ec12f114 | 5276 | stash = NULL; |
79072805 | 5277 | switch (SvTYPE(sv)) { |
8990e307 | 5278 | case SVt_PVIO: |
df0bd2f4 GS |
5279 | if (IoIFP(sv) && |
5280 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5281 | IoIFP(sv) != PerlIO_stdout() && |
5282 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5283 | { |
f2b5be74 | 5284 | io_close((IO*)sv, FALSE); |
93578b34 | 5285 | } |
1d7c1841 | 5286 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5287 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5288 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5289 | Safefree(IoTOP_NAME(sv)); |
5290 | Safefree(IoFMT_NAME(sv)); | |
5291 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5292 | /* FALL THROUGH */ |
79072805 | 5293 | case SVt_PVBM: |
a0d0e21e | 5294 | goto freescalar; |
79072805 | 5295 | case SVt_PVCV: |
748a9306 | 5296 | case SVt_PVFM: |
85e6fe83 | 5297 | cv_undef((CV*)sv); |
a0d0e21e | 5298 | goto freescalar; |
79072805 | 5299 | case SVt_PVHV: |
85e6fe83 | 5300 | hv_undef((HV*)sv); |
a0d0e21e | 5301 | break; |
79072805 | 5302 | case SVt_PVAV: |
85e6fe83 | 5303 | av_undef((AV*)sv); |
a0d0e21e | 5304 | break; |
02270b4e | 5305 | case SVt_PVLV: |
73c86719 JH |
5306 | if (LvTYPE(sv) == 'T') { /* for tie: return HE to pool */ |
5307 | SvREFCNT_dec(HeKEY_sv((HE*)LvTARG(sv))); | |
5308 | HeNEXT((HE*)LvTARG(sv)) = PL_hv_fetch_ent_mh; | |
5309 | PL_hv_fetch_ent_mh = (HE*)LvTARG(sv); | |
5310 | } | |
5311 | else if (LvTYPE(sv) != 't') /* unless tie: unrefcnted fake SV** */ | |
5312 | SvREFCNT_dec(LvTARG(sv)); | |
02270b4e | 5313 | goto freescalar; |
a0d0e21e | 5314 | case SVt_PVGV: |
1edc1566 | 5315 | gp_free((GV*)sv); |
a0d0e21e | 5316 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5317 | /* cannot decrease stash refcount yet, as we might recursively delete |
5318 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5319 | of stash until current sv is completely gone. | |
5320 | -- JohnPC, 27 Mar 1998 */ | |
5321 | stash = GvSTASH(sv); | |
a0d0e21e | 5322 | /* FALL THROUGH */ |
79072805 | 5323 | case SVt_PVMG: |
79072805 LW |
5324 | case SVt_PVNV: |
5325 | case SVt_PVIV: | |
a0d0e21e | 5326 | freescalar: |
2a8de9e2 AL |
5327 | /* Don't bother with SvOOK_off(sv); as we're only going to free it. */ |
5328 | if (SvOOK(sv)) { | |
23c2bb70 | 5329 | SvPV_set(sv, SvPVX_mutable(sv) - SvIVX(sv)); |
2a8de9e2 AL |
5330 | /* Don't even bother with turning off the OOK flag. */ |
5331 | } | |
79072805 LW |
5332 | /* FALL THROUGH */ |
5333 | case SVt_PV: | |
a0d0e21e | 5334 | case SVt_RV: |
810b8aa5 GS |
5335 | if (SvROK(sv)) { |
5336 | if (SvWEAKREF(sv)) | |
5337 | sv_del_backref(sv); | |
5338 | else | |
5339 | SvREFCNT_dec(SvRV(sv)); | |
5340 | } | |
fdac8c4b | 5341 | else if (SvPVX_const(sv) && SvLEN(sv)) |
a02c78fd | 5342 | Safefree(SvPVX_mutable(sv)); |
fdac8c4b SP |
5343 | else if (SvPVX_const(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
5344 | unsharepvn(SvPVX_const(sv), | |
25716404 GS |
5345 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), |
5346 | SvUVX(sv)); | |
1c846c1f NIS |
5347 | SvFAKE_off(sv); |
5348 | } | |
79072805 | 5349 | break; |
a0d0e21e | 5350 | /* |
79072805 | 5351 | case SVt_NV: |
79072805 | 5352 | case SVt_IV: |
79072805 LW |
5353 | case SVt_NULL: |
5354 | break; | |
a0d0e21e | 5355 | */ |
79072805 LW |
5356 | } |
5357 | ||
5358 | switch (SvTYPE(sv)) { | |
5359 | case SVt_NULL: | |
5360 | break; | |
79072805 LW |
5361 | case SVt_IV: |
5362 | del_XIV(SvANY(sv)); | |
5363 | break; | |
5364 | case SVt_NV: | |
5365 | del_XNV(SvANY(sv)); | |
5366 | break; | |
ed6116ce LW |
5367 | case SVt_RV: |
5368 | del_XRV(SvANY(sv)); | |
5369 | break; | |
79072805 LW |
5370 | case SVt_PV: |
5371 | del_XPV(SvANY(sv)); | |
5372 | break; | |
5373 | case SVt_PVIV: | |
5374 | del_XPVIV(SvANY(sv)); | |
5375 | break; | |
5376 | case SVt_PVNV: | |
5377 | del_XPVNV(SvANY(sv)); | |
5378 | break; | |
5379 | case SVt_PVMG: | |
5380 | del_XPVMG(SvANY(sv)); | |
5381 | break; | |
5382 | case SVt_PVLV: | |
5383 | del_XPVLV(SvANY(sv)); | |
5384 | break; | |
5385 | case SVt_PVAV: | |
5386 | del_XPVAV(SvANY(sv)); | |
5387 | break; | |
5388 | case SVt_PVHV: | |
5389 | del_XPVHV(SvANY(sv)); | |
5390 | break; | |
5391 | case SVt_PVCV: | |
5392 | del_XPVCV(SvANY(sv)); | |
5393 | break; | |
5394 | case SVt_PVGV: | |
5395 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5396 | /* code duplication for increased performance. */ |
5397 | SvFLAGS(sv) &= SVf_BREAK; | |
5398 | SvFLAGS(sv) |= SVTYPEMASK; | |
5399 | /* decrease refcount of the stash that owns this GV, if any */ | |
5400 | if (stash) | |
5401 | SvREFCNT_dec(stash); | |
5402 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5403 | case SVt_PVBM: |
5404 | del_XPVBM(SvANY(sv)); | |
5405 | break; | |
5406 | case SVt_PVFM: | |
5407 | del_XPVFM(SvANY(sv)); | |
5408 | break; | |
8990e307 LW |
5409 | case SVt_PVIO: |
5410 | del_XPVIO(SvANY(sv)); | |
5411 | break; | |
79072805 | 5412 | } |
a0d0e21e | 5413 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5414 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5415 | } |
5416 | ||
645c22ef DM |
5417 | /* |
5418 | =for apidoc sv_newref | |
5419 | ||
5420 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5421 | instead. | |
5422 | ||
5423 | =cut | |
5424 | */ | |
5425 | ||
79072805 | 5426 | SV * |
864dbfa3 | 5427 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5428 | { |
463ee0b2 | 5429 | if (sv) |
dce16143 | 5430 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5431 | return sv; |
5432 | } | |
5433 | ||
c461cf8f JH |
5434 | /* |
5435 | =for apidoc sv_free | |
5436 | ||
645c22ef DM |
5437 | Decrement an SV's reference count, and if it drops to zero, call |
5438 | C<sv_clear> to invoke destructors and free up any memory used by | |
5439 | the body; finally, deallocate the SV's head itself. | |
5440 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5441 | |
5442 | =cut | |
5443 | */ | |
5444 | ||
79072805 | 5445 | void |
864dbfa3 | 5446 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5447 | { |
dce16143 MB |
5448 | int refcount_is_zero; |
5449 | ||
79072805 LW |
5450 | if (!sv) |
5451 | return; | |
a0d0e21e LW |
5452 | if (SvREFCNT(sv) == 0) { |
5453 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5454 | /* this SV's refcnt has been artificially decremented to |
5455 | * trigger cleanup */ | |
a0d0e21e | 5456 | return; |
3280af22 | 5457 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5458 | return; |
d689ffdd JP |
5459 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5460 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5461 | SvREFCNT(sv) = (~(U32)0)/2; | |
5462 | return; | |
5463 | } | |
8bbf20a9 | 5464 | if (ckWARN_d(WARN_INTERNAL)) { |
14347439 | 5465 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
b035a42e NC |
5466 | "Attempt to free unreferenced scalar: SV 0x%"UVxf |
5467 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
8bbf20a9 NC |
5468 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
5469 | Perl_dump_sv_child(aTHX_ sv); | |
5470 | #endif | |
5471 | } | |
79072805 LW |
5472 | return; |
5473 | } | |
dce16143 | 5474 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
b881518d | 5475 | if (!refcount_is_zero) |
8990e307 | 5476 | return; |
463ee0b2 LW |
5477 | #ifdef DEBUGGING |
5478 | if (SvTEMP(sv)) { | |
0453d815 | 5479 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5480 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
b035a42e NC |
5481 | "Attempt to free temp prematurely: SV 0x%"UVxf |
5482 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 | 5483 | return; |
79072805 | 5484 | } |
463ee0b2 | 5485 | #endif |
d689ffdd JP |
5486 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5487 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5488 | SvREFCNT(sv) = (~(U32)0)/2; | |
5489 | return; | |
5490 | } | |
79072805 | 5491 | sv_clear(sv); |
477f5d66 CS |
5492 | if (! SvREFCNT(sv)) |
5493 | del_SV(sv); | |
79072805 LW |
5494 | } |
5495 | ||
954c1994 GS |
5496 | /* |
5497 | =for apidoc sv_len | |
5498 | ||
645c22ef DM |
5499 | Returns the length of the string in the SV. Handles magic and type |
5500 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5501 | |
5502 | =cut | |
5503 | */ | |
5504 | ||
79072805 | 5505 | STRLEN |
864dbfa3 | 5506 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5507 | { |
463ee0b2 | 5508 | STRLEN len; |
79072805 LW |
5509 | |
5510 | if (!sv) | |
5511 | return 0; | |
5512 | ||
8990e307 | 5513 | if (SvGMAGICAL(sv)) |
565764a8 | 5514 | len = mg_length(sv); |
8990e307 | 5515 | else |
287c580e | 5516 | (void)SvPV_const(sv, len); |
463ee0b2 | 5517 | return len; |
79072805 LW |
5518 | } |
5519 | ||
c461cf8f JH |
5520 | /* |
5521 | =for apidoc sv_len_utf8 | |
5522 | ||
5523 | Returns the number of characters in the string in an SV, counting wide | |
cd458e05 | 5524 | UTF-8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5525 | |
5526 | =cut | |
5527 | */ | |
5528 | ||
323eb6b5 JH |
5529 | /* |
5530 | * The length is cached in PERL_UTF8_magic, in the mg_len field. Also the | |
5531 | * mg_ptr is used, by sv_pos_u2b(), see the comments of S_utf8_mg_pos_init(). | |
5532 | * (Note that the mg_len is not the length of the mg_ptr field.) | |
5533 | * | |
5534 | */ | |
5535 | ||
a0ed51b3 | 5536 | STRLEN |
864dbfa3 | 5537 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5538 | { |
a0ed51b3 LW |
5539 | if (!sv) |
5540 | return 0; | |
5541 | ||
a0ed51b3 | 5542 | if (SvGMAGICAL(sv)) |
b76347f2 | 5543 | return mg_length(sv); |
a0ed51b3 | 5544 | else |
b76347f2 | 5545 | { |
323eb6b5 | 5546 | STRLEN len, ulen; |
c06c673c | 5547 | const U8 *s = (U8*)SvPV_const(sv, len); |
323eb6b5 JH |
5548 | MAGIC *mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_utf8) : 0; |
5549 | ||
d6218095 | 5550 | if (mg && mg->mg_len != -1 && (mg->mg_len > 0 || len == 0)) { |
323eb6b5 | 5551 | ulen = mg->mg_len; |
d6218095 JH |
5552 | #ifdef PERL_UTF8_CACHE_ASSERT |
5553 | assert(ulen == Perl_utf8_length(aTHX_ s, s + len)); | |
5554 | #endif | |
5555 | } | |
323eb6b5 JH |
5556 | else { |
5557 | ulen = Perl_utf8_length(aTHX_ s, s + len); | |
5558 | if (!mg && !SvREADONLY(sv)) { | |
5559 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
5560 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5561 | assert(mg); | |
5562 | } | |
5563 | if (mg) | |
5564 | mg->mg_len = ulen; | |
5565 | } | |
5566 | return ulen; | |
5567 | } | |
5568 | } | |
5569 | ||
5570 | /* S_utf8_mg_pos_init() is used to initialize the mg_ptr field of | |
5571 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5572 | * between UTF-8 and byte offsets. There are two (substr offset and substr | |
5573 | * length, the i offset, PERL_MAGIC_UTF8_CACHESIZE) times two (UTF-8 offset | |
5574 | * and byte offset) cache positions. | |
5575 | * | |
5576 | * The mg_len field is used by sv_len_utf8(), see its comments. | |
5577 | * Note that the mg_len is not the length of the mg_ptr field. | |
5578 | * | |
5579 | */ | |
5580 | STATIC bool | |
c06c673c NC |
5581 | S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, |
5582 | I32 offsetp, const U8 *s, const U8 *start) | |
323eb6b5 JH |
5583 | { |
5584 | bool found = FALSE; | |
5585 | ||
5586 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
1fce4797 NC |
5587 | if (!*mgp) |
5588 | *mgp = sv_magicext(sv, 0, PERL_MAGIC_utf8, &PL_vtbl_utf8, 0, 0); | |
5589 | assert(*mgp); | |
b76347f2 | 5590 | |
cd7a8267 JC |
5591 | if ((*mgp)->mg_ptr) |
5592 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
5593 | else { | |
5594 | Newxz(*cachep, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); | |
5595 | (*mgp)->mg_ptr = (char *) *cachep; | |
5596 | } | |
5597 | assert(*cachep); | |
323eb6b5 | 5598 | |
8c18bf38 AL |
5599 | (*cachep)[i] = offsetp; |
5600 | (*cachep)[i+1] = s - start; | |
5601 | found = TRUE; | |
323eb6b5 JH |
5602 | } |
5603 | ||
5604 | return found; | |
5605 | } | |
5606 | ||
5607 | /* | |
5608 | * S_utf8_mg_pos() is used to query and update mg_ptr field of | |
5609 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5610 | * between UTF-8 and byte offsets. See also the comments of | |
5611 | * S_utf8_mg_pos_init(). | |
5612 | * | |
5613 | */ | |
5614 | STATIC bool | |
c06c673c | 5615 | S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, const U8 **sp, const U8 *start, const U8 *send) |
323eb6b5 JH |
5616 | { |
5617 | bool found = FALSE; | |
5618 | ||
5619 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
5620 | if (!*mgp) | |
5621 | *mgp = mg_find(sv, PERL_MAGIC_utf8); | |
5622 | if (*mgp && (*mgp)->mg_ptr) { | |
5623 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
d6218095 | 5624 | ASSERT_UTF8_CACHE(*cachep); |
91eb8809 | 5625 | if ((*cachep)[i] == (STRLEN)uoff) /* An exact match. */ |
323eb6b5 JH |
5626 | found = TRUE; |
5627 | else { /* We will skip to the right spot. */ | |
5628 | STRLEN forw = 0; | |
5629 | STRLEN backw = 0; | |
8c18bf38 | 5630 | const U8* p = NULL; |
323eb6b5 JH |
5631 | |
5632 | /* The assumption is that going backward is half | |
5633 | * the speed of going forward (that's where the | |
5634 | * 2 * backw in the below comes from). (The real | |
5635 | * figure of course depends on the UTF-8 data.) */ | |
5636 | ||
91eb8809 | 5637 | if ((*cachep)[i] > (STRLEN)uoff) { |
323eb6b5 | 5638 | forw = uoff; |
91eb8809 | 5639 | backw = (*cachep)[i] - (STRLEN)uoff; |
323eb6b5 JH |
5640 | |
5641 | if (forw < 2 * backw) | |
5642 | p = start; | |
5643 | else | |
5644 | p = start + (*cachep)[i+1]; | |
5645 | } | |
5646 | /* Try this only for the substr offset (i == 0), | |
5647 | * not for the substr length (i == 2). */ | |
5648 | else if (i == 0) { /* (*cachep)[i] < uoff */ | |
8c18bf38 | 5649 | const STRLEN ulen = sv_len_utf8(sv); |
323eb6b5 | 5650 | |
91eb8809 JH |
5651 | if ((STRLEN)uoff < ulen) { |
5652 | forw = (STRLEN)uoff - (*cachep)[i]; | |
5653 | backw = ulen - (STRLEN)uoff; | |
323eb6b5 JH |
5654 | |
5655 | if (forw < 2 * backw) | |
5656 | p = start + (*cachep)[i+1]; | |
5657 | else | |
5658 | p = send; | |
5659 | } | |
5660 | ||
5661 | /* If the string is not long enough for uoff, | |
5662 | * we could extend it, but not at this low a level. */ | |
5663 | } | |
5664 | ||
5665 | if (p) { | |
5666 | if (forw < 2 * backw) { | |
5667 | while (forw--) | |
5668 | p += UTF8SKIP(p); | |
5669 | } | |
5670 | else { | |
5671 | while (backw--) { | |
5672 | p--; | |
5673 | while (UTF8_IS_CONTINUATION(*p)) | |
5674 | p--; | |
5675 | } | |
5676 | } | |
5677 | ||
5678 | /* Update the cache. */ | |
91eb8809 | 5679 | (*cachep)[i] = (STRLEN)uoff; |
323eb6b5 JH |
5680 | (*cachep)[i+1] = p - start; |
5681 | ||
1fce4797 NC |
5682 | /* Drop the stale "length" cache */ |
5683 | if (i == 0) { | |
5684 | (*cachep)[2] = 0; | |
5685 | (*cachep)[3] = 0; | |
5686 | } | |
5687 | ||
323eb6b5 JH |
5688 | found = TRUE; |
5689 | } | |
5690 | } | |
5691 | if (found) { /* Setup the return values. */ | |
5692 | *offsetp = (*cachep)[i+1]; | |
5693 | *sp = start + *offsetp; | |
5694 | if (*sp >= send) { | |
5695 | *sp = send; | |
5696 | *offsetp = send - start; | |
5697 | } | |
5698 | else if (*sp < start) { | |
5699 | *sp = start; | |
5700 | *offsetp = 0; | |
5701 | } | |
5702 | } | |
d6218095 JH |
5703 | } |
5704 | #ifdef PERL_UTF8_CACHE_ASSERT | |
5705 | if (found) { | |
5706 | U8 *s = start; | |
5707 | I32 n = uoff; | |
5708 | ||
5709 | while (n-- && s < send) | |
5710 | s += UTF8SKIP(s); | |
5711 | ||
5712 | if (i == 0) { | |
5713 | assert(*offsetp == s - start); | |
5714 | assert((*cachep)[0] == (STRLEN)uoff); | |
5715 | assert((*cachep)[1] == *offsetp); | |
5716 | } | |
5717 | ASSERT_UTF8_CACHE(*cachep); | |
5718 | } | |
5719 | #endif | |
a0ed51b3 | 5720 | } |
323eb6b5 JH |
5721 | |
5722 | return found; | |
a0ed51b3 LW |
5723 | } |
5724 | ||
645c22ef DM |
5725 | /* |
5726 | =for apidoc sv_pos_u2b | |
5727 | ||
cd458e05 | 5728 | Converts the value pointed to by offsetp from a count of UTF-8 chars from |
645c22ef DM |
5729 | the start of the string, to a count of the equivalent number of bytes; if |
5730 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5731 | the offset, rather than from the start of the string. Handles magic and | |
5732 | type coercion. | |
5733 | ||
5734 | =cut | |
5735 | */ | |
5736 | ||
323eb6b5 JH |
5737 | /* |
5738 | * sv_pos_u2b() uses, like sv_pos_b2u(), the mg_ptr of the potential | |
5739 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
5740 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
5741 | * | |
5742 | */ | |
5743 | ||
a0ed51b3 | 5744 | void |
864dbfa3 | 5745 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5746 | { |
c06c673c | 5747 | const U8 *start; |
a0ed51b3 LW |
5748 | STRLEN len; |
5749 | ||
5750 | if (!sv) | |
5751 | return; | |
5752 | ||
c06c673c | 5753 | start = (U8*)SvPV_const(sv, len); |
323eb6b5 | 5754 | if (len) { |
481da01c AL |
5755 | STRLEN boffset = 0; |
5756 | STRLEN *cache = 0; | |
c06c673c NC |
5757 | const U8 *s = start; |
5758 | I32 uoffset = *offsetp; | |
a2592645 | 5759 | const U8 * const send = s + len; |
c06c673c NC |
5760 | MAGIC *mg = 0; |
5761 | bool found = FALSE; | |
323eb6b5 | 5762 | |
5eed253f | 5763 | if (utf8_mg_pos(sv, &mg, &cache, 0, offsetp, *offsetp, &s, start, send)) |
323eb6b5 JH |
5764 | found = TRUE; |
5765 | if (!found && uoffset > 0) { | |
5766 | while (s < send && uoffset--) | |
5767 | s += UTF8SKIP(s); | |
5768 | if (s >= send) | |
5769 | s = send; | |
8c18bf38 | 5770 | if (utf8_mg_pos_init(sv, &mg, &cache, 0, *offsetp, s, start)) |
323eb6b5 JH |
5771 | boffset = cache[1]; |
5772 | *offsetp = s - start; | |
5773 | } | |
5774 | if (lenp) { | |
5775 | found = FALSE; | |
5776 | start = s; | |
9648d1c1 | 5777 | if (utf8_mg_pos(sv, &mg, &cache, 2, lenp, *lenp, &s, start, send)) { |
323eb6b5 JH |
5778 | *lenp -= boffset; |
5779 | found = TRUE; | |
5780 | } | |
5781 | if (!found && *lenp > 0) { | |
5782 | I32 ulen = *lenp; | |
5783 | if (ulen > 0) | |
5784 | while (s < send && ulen--) | |
5785 | s += UTF8SKIP(s); | |
5786 | if (s >= send) | |
5787 | s = send; | |
8c18bf38 | 5788 | utf8_mg_pos_init(sv, &mg, &cache, 2, *lenp, s, start); |
323eb6b5 JH |
5789 | } |
5790 | *lenp = s - start; | |
5791 | } | |
d6218095 | 5792 | ASSERT_UTF8_CACHE(cache); |
323eb6b5 JH |
5793 | } |
5794 | else { | |
5795 | *offsetp = 0; | |
5796 | if (lenp) | |
5797 | *lenp = 0; | |
a0ed51b3 | 5798 | } |
d6218095 | 5799 | |
a0ed51b3 LW |
5800 | return; |
5801 | } | |
5802 | ||
645c22ef DM |
5803 | /* |
5804 | =for apidoc sv_pos_b2u | |
5805 | ||
5806 | Converts the value pointed to by offsetp from a count of bytes from the | |
cd458e05 | 5807 | start of the string, to a count of the equivalent number of UTF-8 chars. |
645c22ef DM |
5808 | Handles magic and type coercion. |
5809 | ||
5810 | =cut | |
5811 | */ | |
5812 | ||
323eb6b5 JH |
5813 | /* |
5814 | * sv_pos_b2u() uses, like sv_pos_u2b(), the mg_ptr of the potential | |
5815 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
5816 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
5817 | * | |
5818 | */ | |
5819 | ||
a0ed51b3 | 5820 | void |
323eb6b5 | 5821 | Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) |
a0ed51b3 | 5822 | { |
c06c673c | 5823 | const U8* s; |
a0ed51b3 LW |
5824 | STRLEN len; |
5825 | ||
5826 | if (!sv) | |
5827 | return; | |
5828 | ||
c06c673c | 5829 | s = (const U8*)SvPV_const(sv, len); |
eb160463 | 5830 | if ((I32)len < *offsetp) |
a0dbb045 | 5831 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
323eb6b5 | 5832 | else { |
c06c673c | 5833 | const U8* send = s + *offsetp; |
4a9f3d2e NC |
5834 | MAGIC* mg = NULL; |
5835 | STRLEN *cache = NULL; | |
323eb6b5 | 5836 | |
4a9f3d2e | 5837 | len = 0; |
323eb6b5 | 5838 | |
4a9f3d2e NC |
5839 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { |
5840 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5841 | if (mg && mg->mg_ptr) { | |
5842 | cache = (STRLEN *) mg->mg_ptr; | |
5843 | if (cache[1] == (STRLEN)*offsetp) { | |
5844 | /* An exact match. */ | |
5845 | *offsetp = cache[0]; | |
323eb6b5 | 5846 | |
4a9f3d2e NC |
5847 | return; |
5848 | } | |
5849 | else if (cache[1] < (STRLEN)*offsetp) { | |
5850 | /* We already know part of the way. */ | |
5851 | len = cache[0]; | |
5852 | s += cache[1]; | |
5853 | /* Let the below loop do the rest. */ | |
5854 | } | |
5855 | else { /* cache[1] > *offsetp */ | |
5856 | /* We already know all of the way, now we may | |
5857 | * be able to walk back. The same assumption | |
5858 | * is made as in S_utf8_mg_pos(), namely that | |
5859 | * walking backward is twice slower than | |
5860 | * walking forward. */ | |
a2592645 | 5861 | const STRLEN forw = *offsetp; |
4a9f3d2e NC |
5862 | STRLEN backw = cache[1] - *offsetp; |
5863 | ||
5864 | if (!(forw < 2 * backw)) { | |
c06c673c | 5865 | const U8 *p = s + cache[1]; |
4a9f3d2e | 5866 | STRLEN ubackw = 0; |
323eb6b5 | 5867 | |
4a9f3d2e | 5868 | cache[1] -= backw; |
338501c1 | 5869 | |
4a9f3d2e | 5870 | while (backw--) { |
b9219079 JH |
5871 | p--; |
5872 | while (UTF8_IS_CONTINUATION(*p)) { | |
5873 | p--; | |
5874 | backw--; | |
5875 | } | |
5876 | ubackw++; | |
323eb6b5 | 5877 | } |
b9219079 JH |
5878 | |
5879 | cache[0] -= ubackw; | |
5880 | *offsetp = cache[0]; | |
b035a42e NC |
5881 | |
5882 | /* Drop the stale "length" cache */ | |
5883 | cache[2] = 0; | |
5884 | cache[3] = 0; | |
5885 | ||
b9219079 JH |
5886 | return; |
5887 | } | |
5888 | } | |
5889 | } | |
d6218095 | 5890 | ASSERT_UTF8_CACHE(cache); |
323eb6b5 JH |
5891 | } |
5892 | ||
4a9f3d2e NC |
5893 | while (s < send) { |
5894 | STRLEN n = 1; | |
323eb6b5 | 5895 | |
4a9f3d2e NC |
5896 | /* Call utf8n_to_uvchr() to validate the sequence |
5897 | * (unless a simple non-UTF character) */ | |
5898 | if (!UTF8_IS_INVARIANT(*s)) | |
5899 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5900 | if (n > 0) { | |
5901 | s += n; | |
5902 | len++; | |
5903 | } | |
5904 | else | |
5905 | break; | |
5906 | } | |
323eb6b5 | 5907 | |
4a9f3d2e NC |
5908 | if (!SvREADONLY(sv)) { |
5909 | if (!mg) { | |
5910 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
5911 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5912 | } | |
5913 | assert(mg); | |
323eb6b5 | 5914 | |
4a9f3d2e | 5915 | if (!mg->mg_ptr) { |
cd7a8267 | 5916 | Newxz(cache, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); |
4a9f3d2e NC |
5917 | mg->mg_ptr = (char *) cache; |
5918 | } | |
5919 | assert(cache); | |
323eb6b5 | 5920 | |
4a9f3d2e NC |
5921 | cache[0] = len; |
5922 | cache[1] = *offsetp; | |
b035a42e NC |
5923 | /* Drop the stale "length" cache */ |
5924 | cache[2] = 0; | |
5925 | cache[3] = 0; | |
4a9f3d2e | 5926 | } |
323eb6b5 | 5927 | |
4a9f3d2e | 5928 | *offsetp = len; |
a0ed51b3 | 5929 | } |
323eb6b5 | 5930 | |
a0ed51b3 LW |
5931 | return; |
5932 | } | |
5933 | ||
954c1994 GS |
5934 | /* |
5935 | =for apidoc sv_eq | |
5936 | ||
5937 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5938 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5939 | coerce its args to strings if necessary. | |
954c1994 GS |
5940 | |
5941 | =cut | |
5942 | */ | |
5943 | ||
79072805 | 5944 | I32 |
e01b9e88 | 5945 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5946 | { |
c05e0e2f | 5947 | const char *pv1; |
463ee0b2 | 5948 | STRLEN cur1; |
c05e0e2f | 5949 | const char *pv2; |
463ee0b2 | 5950 | STRLEN cur2; |
e01b9e88 | 5951 | I32 eq = 0; |
553e1bcc AT |
5952 | char *tpv = Nullch; |
5953 | SV* svrecode = Nullsv; | |
79072805 | 5954 | |
e01b9e88 | 5955 | if (!sv1) { |
79072805 LW |
5956 | pv1 = ""; |
5957 | cur1 = 0; | |
5958 | } | |
463ee0b2 | 5959 | else |
287c580e | 5960 | pv1 = SvPV_const(sv1, cur1); |
79072805 | 5961 | |
e01b9e88 SC |
5962 | if (!sv2){ |
5963 | pv2 = ""; | |
5964 | cur2 = 0; | |
92d29cee | 5965 | } |
e01b9e88 | 5966 | else |
287c580e | 5967 | pv2 = SvPV_const(sv2, cur2); |
79072805 | 5968 | |
cf48d248 | 5969 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5970 | /* Differing utf8ness. |
5971 | * Do not UTF8size the comparands as a side-effect. */ | |
5972 | if (PL_encoding) { | |
5973 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
5974 | svrecode = newSVpvn(pv2, cur2); |
5975 | sv_recode_to_utf8(svrecode, PL_encoding); | |
23c2bb70 | 5976 | pv2 = SvPV_const(svrecode, cur2); |
799ef3cb JH |
5977 | } |
5978 | else { | |
553e1bcc AT |
5979 | svrecode = newSVpvn(pv1, cur1); |
5980 | sv_recode_to_utf8(svrecode, PL_encoding); | |
23c2bb70 | 5981 | pv1 = SvPV_const(svrecode, cur1); |
799ef3cb JH |
5982 | } |
5983 | /* Now both are in UTF-8. */ | |
60e3e0e4 NC |
5984 | if (cur1 != cur2) { |
5985 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5986 | return FALSE; |
60e3e0e4 | 5987 | } |
799ef3cb JH |
5988 | } |
5989 | else { | |
5990 | bool is_utf8 = TRUE; | |
5991 | ||
5992 | if (SvUTF8(sv1)) { | |
5993 | /* sv1 is the UTF-8 one, | |
5994 | * if is equal it must be downgrade-able */ | |
a2592645 | 5995 | char * const pv = (char*)bytes_from_utf8((const U8*)pv1, |
799ef3cb JH |
5996 | &cur1, &is_utf8); |
5997 | if (pv != pv1) | |
553e1bcc | 5998 | pv1 = tpv = pv; |
799ef3cb JH |
5999 | } |
6000 | else { | |
6001 | /* sv2 is the UTF-8 one, | |
6002 | * if is equal it must be downgrade-able */ | |
a2592645 | 6003 | char * const pv = (char *)bytes_from_utf8((const U8*)pv2, |
799ef3cb JH |
6004 | &cur2, &is_utf8); |
6005 | if (pv != pv2) | |
553e1bcc | 6006 | pv2 = tpv = pv; |
799ef3cb JH |
6007 | } |
6008 | if (is_utf8) { | |
6009 | /* Downgrade not possible - cannot be eq */ | |
6010 | return FALSE; | |
6011 | } | |
6012 | } | |
cf48d248 JH |
6013 | } |
6014 | ||
6015 | if (cur1 == cur2) | |
6016 | eq = memEQ(pv1, pv2, cur1); | |
e01b9e88 | 6017 | |
553e1bcc AT |
6018 | if (svrecode) |
6019 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6020 | |
553e1bcc AT |
6021 | if (tpv) |
6022 | Safefree(tpv); | |
cf48d248 | 6023 | |
e01b9e88 | 6024 | return eq; |
79072805 LW |
6025 | } |
6026 | ||
954c1994 GS |
6027 | /* |
6028 | =for apidoc sv_cmp | |
6029 | ||
6030 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
6031 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
6032 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
6033 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
6034 | |
6035 | =cut | |
6036 | */ | |
6037 | ||
79072805 | 6038 | I32 |
e01b9e88 | 6039 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 6040 | { |
560a288e | 6041 | STRLEN cur1, cur2; |
c05e0e2f AL |
6042 | const char *pv1, *pv2; |
6043 | char *tpv = Nullch; | |
cf48d248 | 6044 | I32 cmp; |
553e1bcc | 6045 | SV *svrecode = Nullsv; |
560a288e | 6046 | |
e01b9e88 SC |
6047 | if (!sv1) { |
6048 | pv1 = ""; | |
560a288e GS |
6049 | cur1 = 0; |
6050 | } | |
e01b9e88 | 6051 | else |
287c580e | 6052 | pv1 = SvPV_const(sv1, cur1); |
560a288e | 6053 | |
553e1bcc | 6054 | if (!sv2) { |
e01b9e88 | 6055 | pv2 = ""; |
560a288e GS |
6056 | cur2 = 0; |
6057 | } | |
e01b9e88 | 6058 | else |
287c580e | 6059 | pv2 = SvPV_const(sv2, cur2); |
79072805 | 6060 | |
cf48d248 | 6061 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
6062 | /* Differing utf8ness. |
6063 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 6064 | if (SvUTF8(sv1)) { |
799ef3cb | 6065 | if (PL_encoding) { |
553e1bcc AT |
6066 | svrecode = newSVpvn(pv2, cur2); |
6067 | sv_recode_to_utf8(svrecode, PL_encoding); | |
23c2bb70 | 6068 | pv2 = SvPV_const(svrecode, cur2); |
799ef3cb JH |
6069 | } |
6070 | else { | |
c05e0e2f | 6071 | pv2 = tpv = (char*)bytes_to_utf8((const U8*)pv2, &cur2); |
799ef3cb | 6072 | } |
cf48d248 JH |
6073 | } |
6074 | else { | |
799ef3cb | 6075 | if (PL_encoding) { |
553e1bcc AT |
6076 | svrecode = newSVpvn(pv1, cur1); |
6077 | sv_recode_to_utf8(svrecode, PL_encoding); | |
23c2bb70 | 6078 | pv1 = SvPV_const(svrecode, cur1); |
799ef3cb JH |
6079 | } |
6080 | else { | |
c05e0e2f | 6081 | pv1 = tpv = (char*)bytes_to_utf8((const U8*)pv1, &cur1); |
799ef3cb | 6082 | } |
cf48d248 JH |
6083 | } |
6084 | } | |
6085 | ||
e01b9e88 | 6086 | if (!cur1) { |
cf48d248 | 6087 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 6088 | } else if (!cur2) { |
cf48d248 JH |
6089 | cmp = 1; |
6090 | } else { | |
c05e0e2f | 6091 | const I32 retval = memcmp((const void*)pv1, (const void*)pv2, cur1 < cur2 ? cur1 : cur2); |
e01b9e88 SC |
6092 | |
6093 | if (retval) { | |
cf48d248 | 6094 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 6095 | } else if (cur1 == cur2) { |
cf48d248 JH |
6096 | cmp = 0; |
6097 | } else { | |
6098 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 6099 | } |
cf48d248 | 6100 | } |
16660edb | 6101 | |
553e1bcc AT |
6102 | if (svrecode) |
6103 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6104 | |
553e1bcc AT |
6105 | if (tpv) |
6106 | Safefree(tpv); | |
cf48d248 JH |
6107 | |
6108 | return cmp; | |
bbce6d69 | 6109 | } |
16660edb | 6110 | |
c461cf8f JH |
6111 | /* |
6112 | =for apidoc sv_cmp_locale | |
6113 | ||
645c22ef DM |
6114 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
6115 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
6116 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
6117 | |
6118 | =cut | |
6119 | */ | |
6120 | ||
bbce6d69 | 6121 | I32 |
864dbfa3 | 6122 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 6123 | { |
36477c24 | 6124 | #ifdef USE_LOCALE_COLLATE |
16660edb | 6125 | |
bbce6d69 | 6126 | char *pv1, *pv2; |
6127 | STRLEN len1, len2; | |
6128 | I32 retval; | |
16660edb | 6129 | |
3280af22 | 6130 | if (PL_collation_standard) |
bbce6d69 | 6131 | goto raw_compare; |
16660edb | 6132 | |
bbce6d69 | 6133 | len1 = 0; |
8ac85365 | 6134 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 6135 | len2 = 0; |
8ac85365 | 6136 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 6137 | |
bbce6d69 | 6138 | if (!pv1 || !len1) { |
6139 | if (pv2 && len2) | |
6140 | return -1; | |
6141 | else | |
6142 | goto raw_compare; | |
6143 | } | |
6144 | else { | |
6145 | if (!pv2 || !len2) | |
6146 | return 1; | |
6147 | } | |
16660edb | 6148 | |
bbce6d69 | 6149 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 6150 | |
bbce6d69 | 6151 | if (retval) |
16660edb | 6152 | return retval < 0 ? -1 : 1; |
6153 | ||
bbce6d69 | 6154 | /* |
6155 | * When the result of collation is equality, that doesn't mean | |
6156 | * that there are no differences -- some locales exclude some | |
6157 | * characters from consideration. So to avoid false equalities, | |
6158 | * we use the raw string as a tiebreaker. | |
6159 | */ | |
16660edb | 6160 | |
bbce6d69 | 6161 | raw_compare: |
6162 | /* FALL THROUGH */ | |
16660edb | 6163 | |
36477c24 | 6164 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 6165 | |
bbce6d69 | 6166 | return sv_cmp(sv1, sv2); |
6167 | } | |
79072805 | 6168 | |
645c22ef | 6169 | |
36477c24 | 6170 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 6171 | |
7a4c00b4 | 6172 | /* |
645c22ef DM |
6173 | =for apidoc sv_collxfrm |
6174 | ||
6175 | Add Collate Transform magic to an SV if it doesn't already have it. | |
6176 | ||
6177 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
6178 | scalar data of the variable, but transformed to such a format that a normal | |
6179 | memory comparison can be used to compare the data according to the locale | |
6180 | settings. | |
6181 | ||
6182 | =cut | |
6183 | */ | |
6184 | ||
bbce6d69 | 6185 | char * |
864dbfa3 | 6186 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 6187 | { |
7a4c00b4 | 6188 | MAGIC *mg; |
16660edb | 6189 | |
14befaf4 | 6190 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 6191 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
23c2bb70 NC |
6192 | const char *s; |
6193 | char *xf; | |
bbce6d69 | 6194 | STRLEN len, xlen; |
6195 | ||
7a4c00b4 | 6196 | if (mg) |
6197 | Safefree(mg->mg_ptr); | |
23c2bb70 | 6198 | s = SvPV_const(sv, len); |
bbce6d69 | 6199 | if ((xf = mem_collxfrm(s, len, &xlen))) { |
ff0cee69 | 6200 | if (SvREADONLY(sv)) { |
6201 | SAVEFREEPV(xf); | |
6202 | *nxp = xlen; | |
3280af22 | 6203 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 6204 | } |
7a4c00b4 | 6205 | if (! mg) { |
14befaf4 DM |
6206 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
6207 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 6208 | assert(mg); |
bbce6d69 | 6209 | } |
7a4c00b4 | 6210 | mg->mg_ptr = xf; |
565764a8 | 6211 | mg->mg_len = xlen; |
7a4c00b4 | 6212 | } |
6213 | else { | |
ff0cee69 | 6214 | if (mg) { |
6215 | mg->mg_ptr = NULL; | |
565764a8 | 6216 | mg->mg_len = -1; |
ff0cee69 | 6217 | } |
bbce6d69 | 6218 | } |
6219 | } | |
7a4c00b4 | 6220 | if (mg && mg->mg_ptr) { |
565764a8 | 6221 | *nxp = mg->mg_len; |
3280af22 | 6222 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 6223 | } |
6224 | else { | |
6225 | *nxp = 0; | |
6226 | return NULL; | |
16660edb | 6227 | } |
79072805 LW |
6228 | } |
6229 | ||
36477c24 | 6230 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 6231 | |
c461cf8f JH |
6232 | /* |
6233 | =for apidoc sv_gets | |
6234 | ||
6235 | Get a line from the filehandle and store it into the SV, optionally | |
6236 | appending to the currently-stored string. | |
6237 | ||
6238 | =cut | |
6239 | */ | |
6240 | ||
79072805 | 6241 | char * |
864dbfa3 | 6242 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 6243 | { |
c05e0e2f | 6244 | const char *rsptr; |
c07a80fd | 6245 | STRLEN rslen; |
6246 | register STDCHAR rslast; | |
6247 | register STDCHAR *bp; | |
6248 | register I32 cnt; | |
9c5ffd7c | 6249 | I32 i = 0; |
8bfdd7d9 | 6250 | I32 rspara = 0; |
fe1d0b35 | 6251 | I32 recsize; |
c07a80fd | 6252 | |
1624793d NC |
6253 | if (SvTHINKFIRST(sv)) |
6254 | sv_force_normal_flags(sv, append ? 0 : SV_COW_DROP_PV); | |
6255 | /* XXX. If you make this PVIV, then copy on write can copy scalars read | |
6256 | from <>. | |
6257 | However, perlbench says it's slower, because the existing swipe code | |
6258 | is faster than copy on write. | |
6259 | Swings and roundabouts. */ | |
6fc92669 | 6260 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 6261 | |
ff68c719 | 6262 | SvSCREAM_off(sv); |
251c53ad AE |
6263 | |
6264 | if (append) { | |
6265 | if (PerlIO_isutf8(fp)) { | |
6266 | if (!SvUTF8(sv)) { | |
6267 | sv_utf8_upgrade_nomg(sv); | |
6268 | sv_pos_u2b(sv,&append,0); | |
6269 | } | |
6270 | } else if (SvUTF8(sv)) { | |
ce7d4f40 | 6271 | SV * const tsv = NEWSV(0,0); |
251c53ad AE |
6272 | sv_gets(tsv, fp, 0); |
6273 | sv_utf8_upgrade_nomg(tsv); | |
6274 | SvCUR_set(sv,append); | |
6275 | sv_catsv(sv,tsv); | |
6276 | sv_free(tsv); | |
6277 | goto return_string_or_null; | |
6278 | } | |
6279 | } | |
6280 | ||
6281 | SvPOK_only(sv); | |
6282 | if (PerlIO_isutf8(fp)) | |
6283 | SvUTF8_on(sv); | |
c07a80fd | 6284 | |
ef7b71f0 | 6285 | if (IN_PERL_COMPILETIME) { |
8bfdd7d9 HS |
6286 | /* we always read code in line mode */ |
6287 | rsptr = "\n"; | |
6288 | rslen = 1; | |
6289 | } | |
6290 | else if (RsSNARF(PL_rs)) { | |
338501c1 JH |
6291 | /* If it is a regular disk file use size from stat() as estimate |
6292 | of amount we are going to read - may result in malloc-ing | |
6293 | more memory than we realy need if layers bellow reduce | |
6294 | size we read (e.g. CRLF or a gzip layer) | |
6295 | */ | |
fe1d0b35 | 6296 | Stat_t st; |
338501c1 | 6297 | if (!PerlLIO_fstat(PerlIO_fileno(fp), &st) && S_ISREG(st.st_mode)) { |
24c2fff4 | 6298 | const Off_t offset = PerlIO_tell(fp); |
bfd7eeef | 6299 | if (offset != (Off_t) -1 && st.st_size + append > offset) { |
338501c1 JH |
6300 | (void) SvGROW(sv, (STRLEN)((st.st_size - offset) + append + 1)); |
6301 | } | |
6302 | } | |
c07a80fd | 6303 | rsptr = NULL; |
6304 | rslen = 0; | |
6305 | } | |
3280af22 | 6306 | else if (RsRECORD(PL_rs)) { |
fe1d0b35 | 6307 | I32 bytesread; |
5b2b9c68 HM |
6308 | char *buffer; |
6309 | ||
6310 | /* Grab the size of the record we're getting */ | |
3280af22 | 6311 | recsize = SvIV(SvRV(PL_rs)); |
fe1d0b35 | 6312 | buffer = SvGROW(sv, (STRLEN)(recsize + append + 1)) + append; |
5b2b9c68 HM |
6313 | /* Go yank in */ |
6314 | #ifdef VMS | |
6315 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
6316 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
338501c1 JH |
6317 | /* doing, but we've got no other real choice - except avoid stdio |
6318 | as implementation - perhaps write a :vms layer ? | |
6319 | */ | |
5b2b9c68 HM |
6320 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); |
6321 | #else | |
6322 | bytesread = PerlIO_read(fp, buffer, recsize); | |
6323 | #endif | |
e3b9cd39 JH |
6324 | if (bytesread < 0) |
6325 | bytesread = 0; | |
fe1d0b35 | 6326 | SvCUR_set(sv, bytesread += append); |
e670df4e | 6327 | buffer[bytesread] = '\0'; |
251c53ad | 6328 | goto return_string_or_null; |
5b2b9c68 | 6329 | } |
3280af22 | 6330 | else if (RsPARA(PL_rs)) { |
c07a80fd | 6331 | rsptr = "\n\n"; |
6332 | rslen = 2; | |
8bfdd7d9 | 6333 | rspara = 1; |
c07a80fd | 6334 | } |
7d59b7e4 NIS |
6335 | else { |
6336 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
6337 | if (PerlIO_isutf8(fp)) { | |
6338 | rsptr = SvPVutf8(PL_rs, rslen); | |
6339 | } | |
6340 | else { | |
6341 | if (SvUTF8(PL_rs)) { | |
6342 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
6343 | Perl_croak(aTHX_ "Wide character in $/"); | |
6344 | } | |
6345 | } | |
23c2bb70 | 6346 | rsptr = SvPV_const(PL_rs, rslen); |
7d59b7e4 NIS |
6347 | } |
6348 | } | |
6349 | ||
c07a80fd | 6350 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
6351 | ||
8bfdd7d9 | 6352 | if (rspara) { /* have to do this both before and after */ |
79072805 | 6353 | do { /* to make sure file boundaries work right */ |
760ac839 | 6354 | if (PerlIO_eof(fp)) |
a0d0e21e | 6355 | return 0; |
760ac839 | 6356 | i = PerlIO_getc(fp); |
79072805 | 6357 | if (i != '\n') { |
a0d0e21e LW |
6358 | if (i == -1) |
6359 | return 0; | |
760ac839 | 6360 | PerlIO_ungetc(fp,i); |
79072805 LW |
6361 | break; |
6362 | } | |
6363 | } while (i != EOF); | |
6364 | } | |
c07a80fd | 6365 | |
760ac839 LW |
6366 | /* See if we know enough about I/O mechanism to cheat it ! */ |
6367 | ||
6368 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 6369 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
6370 | enough here - and may even be a macro allowing compile |
6371 | time optimization. | |
6372 | */ | |
6373 | ||
6374 | if (PerlIO_fast_gets(fp)) { | |
6375 | ||
6376 | /* | |
6377 | * We're going to steal some values from the stdio struct | |
6378 | * and put EVERYTHING in the innermost loop into registers. | |
6379 | */ | |
6380 | register STDCHAR *ptr; | |
6381 | STRLEN bpx; | |
6382 | I32 shortbuffered; | |
6383 | ||
16660edb | 6384 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
6385 | /* An ungetc()d char is handled separately from the regular | |
6386 | * buffer, so we getc() it back out and stuff it in the buffer. | |
6387 | */ | |
6388 | i = PerlIO_getc(fp); | |
6389 | if (i == EOF) return 0; | |
6390 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
6391 | (*fp)->_cnt++; | |
6392 | #endif | |
c07a80fd | 6393 | |
c2960299 | 6394 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 6395 | |
a20bf0c3 | 6396 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
338501c1 JH |
6397 | /* make sure we have the room */ |
6398 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { | |
6399 | /* Not room for all of it | |
6400 | if we are looking for a separator and room for some | |
6401 | */ | |
6402 | if (rslen && cnt > 80 && (I32)SvLEN(sv) > append) { | |
6403 | /* just process what we have room for */ | |
79072805 LW |
6404 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
6405 | cnt -= shortbuffered; | |
6406 | } | |
6407 | else { | |
6408 | shortbuffered = 0; | |
bbce6d69 | 6409 | /* remember that cnt can be negative */ |
eb160463 | 6410 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
6411 | } |
6412 | } | |
338501c1 | 6413 | else |
79072805 | 6414 | shortbuffered = 0; |
fdac8c4b | 6415 | bp = (STDCHAR*)SvPVX_const(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 6416 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 6417 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6418 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 6419 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 6420 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6421 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6422 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
6423 | for (;;) { |
6424 | screamer: | |
93a17b20 | 6425 | if (cnt > 0) { |
c07a80fd | 6426 | if (rslen) { |
760ac839 LW |
6427 | while (cnt > 0) { /* this | eat */ |
6428 | cnt--; | |
c07a80fd | 6429 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
6430 | goto thats_all_folks; /* screams | sed :-) */ | |
6431 | } | |
6432 | } | |
6433 | else { | |
1c846c1f NIS |
6434 | Copy(ptr, bp, cnt, char); /* this | eat */ |
6435 | bp += cnt; /* screams | dust */ | |
c07a80fd | 6436 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 6437 | cnt = 0; |
93a17b20 | 6438 | } |
79072805 LW |
6439 | } |
6440 | ||
748a9306 | 6441 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
6442 | cnt = shortbuffered; |
6443 | shortbuffered = 0; | |
fdac8c4b | 6444 | bpx = bp - (STDCHAR*)SvPVX_const(sv); /* box up before relocation */ |
79072805 LW |
6445 | SvCUR_set(sv, bpx); |
6446 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
fdac8c4b | 6447 | bp = (STDCHAR*)SvPVX_const(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
6448 | continue; |
6449 | } | |
6450 | ||
16660edb | 6451 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
6452 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
6453 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 6454 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 6455 | #if 0 |
16660edb | 6456 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6457 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6458 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6459 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6460 | #endif |
1c846c1f | 6461 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 6462 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
6463 | another abstraction. */ | |
760ac839 | 6464 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 6465 | #if 0 |
16660edb | 6466 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6467 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6468 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6469 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6470 | #endif |
a20bf0c3 JH |
6471 | cnt = PerlIO_get_cnt(fp); |
6472 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 6473 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6474 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 6475 | |
748a9306 LW |
6476 | if (i == EOF) /* all done for ever? */ |
6477 | goto thats_really_all_folks; | |
6478 | ||
fdac8c4b | 6479 | bpx = bp - (STDCHAR*)SvPVX_const(sv); /* box up before relocation */ |
79072805 LW |
6480 | SvCUR_set(sv, bpx); |
6481 | SvGROW(sv, bpx + cnt + 2); | |
fdac8c4b | 6482 | bp = (STDCHAR*)SvPVX_const(sv) + bpx; /* unbox after relocation */ |
c07a80fd | 6483 | |
eb160463 | 6484 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 6485 | |
c07a80fd | 6486 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 6487 | goto thats_all_folks; |
79072805 LW |
6488 | } |
6489 | ||
6490 | thats_all_folks: | |
fdac8c4b | 6491 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX_const(sv)) < rslen) || |
36477c24 | 6492 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 6493 | goto screamer; /* go back to the fray */ |
79072805 LW |
6494 | thats_really_all_folks: |
6495 | if (shortbuffered) | |
6496 | cnt += shortbuffered; | |
16660edb | 6497 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6498 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 6499 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 6500 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6501 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6502 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6503 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 6504 | *bp = '\0'; |
fdac8c4b | 6505 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX_const(sv)); /* set length */ |
16660edb | 6506 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 6507 | "Screamer: done, len=%ld, string=|%.*s|\n", |
fdac8c4b | 6508 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX_const(sv))); |
760ac839 LW |
6509 | } |
6510 | else | |
79072805 | 6511 | { |
2ee2a917 JH |
6512 | /*The big, slow, and stupid way. */ |
6513 | ||
6514 | /* Any stack-challenged places. */ | |
f73bace3 | 6515 | #if defined(EPOC) |
2ee2a917 JH |
6516 | /* EPOC: need to work around SDK features. * |
6517 | * On WINS: MS VC5 generates calls to _chkstk, * | |
6518 | * if a "large" stack frame is allocated. * | |
6519 | * gcc on MARM does not generate calls like these. */ | |
6520 | # define USEHEAPINSTEADOFSTACK | |
6521 | #endif | |
6522 | ||
6523 | #ifdef USEHEAPINSTEADOFSTACK | |
6524 | STDCHAR *buf = 0; | |
cd7a8267 | 6525 | Newx(buf, 8192, STDCHAR); |
2ee2a917 | 6526 | assert(buf); |
4d2c4e07 | 6527 | #else |
2ee2a917 | 6528 | STDCHAR buf[8192]; |
4d2c4e07 | 6529 | #endif |
79072805 | 6530 | |
760ac839 | 6531 | screamer2: |
c07a80fd | 6532 | if (rslen) { |
c501bbfe | 6533 | const register STDCHAR *bpe = buf + sizeof(buf); |
760ac839 | 6534 | bp = buf; |
eb160463 | 6535 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
6536 | ; /* keep reading */ |
6537 | cnt = bp - buf; | |
c07a80fd | 6538 | } |
6539 | else { | |
760ac839 | 6540 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 6541 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
6542 | * both args of ?: operator, causing EOF to change into 255 | |
6543 | */ | |
37be0adf | 6544 | if (cnt > 0) |
cbe9e203 JH |
6545 | i = (U8)buf[cnt - 1]; |
6546 | else | |
37be0adf | 6547 | i = EOF; |
c07a80fd | 6548 | } |
79072805 | 6549 | |
cbe9e203 JH |
6550 | if (cnt < 0) |
6551 | cnt = 0; /* we do need to re-set the sv even when cnt <= 0 */ | |
6552 | if (append) | |
6553 | sv_catpvn(sv, (char *) buf, cnt); | |
6554 | else | |
6555 | sv_setpvn(sv, (char *) buf, cnt); | |
c07a80fd | 6556 | |
6557 | if (i != EOF && /* joy */ | |
6558 | (!rslen || | |
6559 | SvCUR(sv) < rslen || | |
fdac8c4b | 6560 | memNE(SvPVX_const(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
6561 | { |
6562 | append = -1; | |
63e4d877 CS |
6563 | /* |
6564 | * If we're reading from a TTY and we get a short read, | |
6565 | * indicating that the user hit his EOF character, we need | |
6566 | * to notice it now, because if we try to read from the TTY | |
6567 | * again, the EOF condition will disappear. | |
6568 | * | |
6569 | * The comparison of cnt to sizeof(buf) is an optimization | |
6570 | * that prevents unnecessary calls to feof(). | |
6571 | * | |
6572 | * - jik 9/25/96 | |
6573 | */ | |
6574 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
6575 | goto screamer2; | |
79072805 | 6576 | } |
2ee2a917 JH |
6577 | |
6578 | #ifdef USEHEAPINSTEADOFSTACK | |
6579 | Safefree(buf); | |
6580 | #endif | |
79072805 LW |
6581 | } |
6582 | ||
8bfdd7d9 | 6583 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 6584 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 6585 | i = PerlIO_getc(fp); |
79072805 | 6586 | if (i != '\n') { |
760ac839 | 6587 | PerlIO_ungetc(fp,i); |
79072805 LW |
6588 | break; |
6589 | } | |
6590 | } | |
6591 | } | |
c07a80fd | 6592 | |
251c53ad | 6593 | return_string_or_null: |
c07a80fd | 6594 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
6595 | } |
6596 | ||
954c1994 GS |
6597 | /* |
6598 | =for apidoc sv_inc | |
6599 | ||
645c22ef DM |
6600 | Auto-increment of the value in the SV, doing string to numeric conversion |
6601 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6602 | |
6603 | =cut | |
6604 | */ | |
6605 | ||
79072805 | 6606 | void |
864dbfa3 | 6607 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
6608 | { |
6609 | register char *d; | |
463ee0b2 | 6610 | int flags; |
79072805 LW |
6611 | |
6612 | if (!sv) | |
6613 | return; | |
b23a5f78 GB |
6614 | if (SvGMAGICAL(sv)) |
6615 | mg_get(sv); | |
ed6116ce | 6616 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6617 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6618 | sv_force_normal(sv); | |
0f15f207 | 6619 | if (SvREADONLY(sv)) { |
ef7b71f0 | 6620 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 6621 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6622 | } |
a0d0e21e | 6623 | if (SvROK(sv)) { |
b5be31e9 | 6624 | IV i; |
9e7bc3e8 JD |
6625 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
6626 | return; | |
56431972 | 6627 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6628 | sv_unref(sv); |
6629 | sv_setiv(sv, i); | |
a0d0e21e | 6630 | } |
ed6116ce | 6631 | } |
8990e307 | 6632 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6633 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
6634 | /* It's (privately or publicly) a float, but not tested as an | |
6635 | integer, so test it to see. */ | |
d460ef45 | 6636 | (void) SvIV(sv); |
28e5dec8 JH |
6637 | flags = SvFLAGS(sv); |
6638 | } | |
6639 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
6640 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6641 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6642 | oops_its_int: |
59d8ce62 | 6643 | #endif |
25da4f38 IZ |
6644 | if (SvIsUV(sv)) { |
6645 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 6646 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
6647 | else |
6648 | (void)SvIOK_only_UV(sv); | |
0da6cfda | 6649 | SvUV_set(sv, SvUVX(sv) + 1); |
25da4f38 IZ |
6650 | } else { |
6651 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 6652 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
6653 | else { |
6654 | (void)SvIOK_only(sv); | |
0da6cfda | 6655 | SvIV_set(sv, SvIVX(sv) + 1); |
1c846c1f | 6656 | } |
55497cff | 6657 | } |
79072805 LW |
6658 | return; |
6659 | } | |
28e5dec8 JH |
6660 | if (flags & SVp_NOK) { |
6661 | (void)SvNOK_only(sv); | |
0da6cfda | 6662 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
6663 | return; |
6664 | } | |
6665 | ||
fdac8c4b | 6666 | if (!(flags & SVp_POK) || !*SvPVX_const(sv)) { |
28e5dec8 JH |
6667 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6668 | sv_upgrade(sv, SVt_IV); | |
6669 | (void)SvIOK_only(sv); | |
0da6cfda | 6670 | SvIV_set(sv, 1); |
79072805 LW |
6671 | return; |
6672 | } | |
463ee0b2 | 6673 | d = SvPVX(sv); |
79072805 LW |
6674 | while (isALPHA(*d)) d++; |
6675 | while (isDIGIT(*d)) d++; | |
6676 | if (*d) { | |
28e5dec8 | 6677 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6678 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6679 | warnings. Probably ought to make the sv_iv_please() that does |
6680 | the conversion if possible, and silently. */ | |
547d29e4 | 6681 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6682 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6683 | /* Need to try really hard to see if it's an integer. | |
6684 | 9.22337203685478e+18 is an integer. | |
6685 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6686 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6687 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6688 | or we go insane. */ | |
d460ef45 | 6689 | |
28e5dec8 JH |
6690 | (void) sv_2iv(sv); |
6691 | if (SvIOK(sv)) | |
6692 | goto oops_its_int; | |
6693 | ||
6694 | /* sv_2iv *should* have made this an NV */ | |
6695 | if (flags & SVp_NOK) { | |
6696 | (void)SvNOK_only(sv); | |
0da6cfda | 6697 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
6698 | return; |
6699 | } | |
6700 | /* I don't think we can get here. Maybe I should assert this | |
6701 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6702 | Fall through. */ | |
6703 | #if defined(USE_LONG_DOUBLE) | |
6704 | 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 | 6705 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 | 6706 | #else |
1779d84d | 6707 | 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 | 6708 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 JH |
6709 | #endif |
6710 | } | |
6711 | #endif /* PERL_PRESERVE_IVUV */ | |
fdac8c4b | 6712 | sv_setnv(sv,Atof(SvPVX_const(sv)) + 1.0); |
79072805 LW |
6713 | return; |
6714 | } | |
6715 | d--; | |
fdac8c4b | 6716 | while (d >= SvPVX_const(sv)) { |
79072805 LW |
6717 | if (isDIGIT(*d)) { |
6718 | if (++*d <= '9') | |
6719 | return; | |
6720 | *(d--) = '0'; | |
6721 | } | |
6722 | else { | |
9d116dd7 JH |
6723 | #ifdef EBCDIC |
6724 | /* MKS: The original code here died if letters weren't consecutive. | |
6725 | * at least it didn't have to worry about non-C locales. The | |
6726 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6727 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6728 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6729 | */ | |
6730 | if (*d != 'z' && *d != 'Z') { | |
6731 | do { ++*d; } while (!isALPHA(*d)); | |
6732 | return; | |
6733 | } | |
6734 | *(d--) -= 'z' - 'a'; | |
6735 | #else | |
79072805 LW |
6736 | ++*d; |
6737 | if (isALPHA(*d)) | |
6738 | return; | |
6739 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 6740 | #endif |
79072805 LW |
6741 | } |
6742 | } | |
6743 | /* oh,oh, the number grew */ | |
6744 | SvGROW(sv, SvCUR(sv) + 2); | |
a8dc4fe8 | 6745 | SvCUR_set(sv, SvCUR(sv) + 1); |
fdac8c4b | 6746 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX_const(sv); d--) |
79072805 LW |
6747 | *d = d[-1]; |
6748 | if (isDIGIT(d[1])) | |
6749 | *d = '1'; | |
6750 | else | |
6751 | *d = d[1]; | |
6752 | } | |
6753 | ||
954c1994 GS |
6754 | /* |
6755 | =for apidoc sv_dec | |
6756 | ||
645c22ef DM |
6757 | Auto-decrement of the value in the SV, doing string to numeric conversion |
6758 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6759 | |
6760 | =cut | |
6761 | */ | |
6762 | ||
79072805 | 6763 | void |
864dbfa3 | 6764 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6765 | { |
463ee0b2 LW |
6766 | int flags; |
6767 | ||
79072805 LW |
6768 | if (!sv) |
6769 | return; | |
b23a5f78 GB |
6770 | if (SvGMAGICAL(sv)) |
6771 | mg_get(sv); | |
ed6116ce | 6772 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6773 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6774 | sv_force_normal(sv); | |
0f15f207 | 6775 | if (SvREADONLY(sv)) { |
ef7b71f0 | 6776 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 6777 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6778 | } |
a0d0e21e | 6779 | if (SvROK(sv)) { |
b5be31e9 | 6780 | IV i; |
9e7bc3e8 JD |
6781 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6782 | return; | |
56431972 | 6783 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6784 | sv_unref(sv); |
6785 | sv_setiv(sv, i); | |
a0d0e21e | 6786 | } |
ed6116ce | 6787 | } |
28e5dec8 JH |
6788 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6789 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6790 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6791 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6792 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6793 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6794 | oops_its_int: |
59d8ce62 | 6795 | #endif |
25da4f38 IZ |
6796 | if (SvIsUV(sv)) { |
6797 | if (SvUVX(sv) == 0) { | |
6798 | (void)SvIOK_only(sv); | |
0da6cfda | 6799 | SvIV_set(sv, -1); |
25da4f38 IZ |
6800 | } |
6801 | else { | |
6802 | (void)SvIOK_only_UV(sv); | |
b43557d6 | 6803 | SvUV_set(sv, SvUVX(sv) - 1); |
1c846c1f | 6804 | } |
25da4f38 IZ |
6805 | } else { |
6806 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6807 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6808 | else { |
6809 | (void)SvIOK_only(sv); | |
0da6cfda | 6810 | SvIV_set(sv, SvIVX(sv) - 1); |
1c846c1f | 6811 | } |
55497cff | 6812 | } |
6813 | return; | |
6814 | } | |
28e5dec8 | 6815 | if (flags & SVp_NOK) { |
0da6cfda | 6816 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
6817 | (void)SvNOK_only(sv); |
6818 | return; | |
6819 | } | |
8990e307 | 6820 | if (!(flags & SVp_POK)) { |
b43557d6 NC |
6821 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6822 | sv_upgrade(sv, ((flags & SVTYPEMASK) > SVt_IV) ? SVt_PVIV : SVt_IV); | |
6823 | SvIV_set(sv, -1); | |
6824 | (void)SvIOK_only(sv); | |
79072805 LW |
6825 | return; |
6826 | } | |
28e5dec8 JH |
6827 | #ifdef PERL_PRESERVE_IVUV |
6828 | { | |
547d29e4 | 6829 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6830 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6831 | /* Need to try really hard to see if it's an integer. | |
6832 | 9.22337203685478e+18 is an integer. | |
6833 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6834 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6835 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6836 | or we go insane. */ | |
d460ef45 | 6837 | |
28e5dec8 JH |
6838 | (void) sv_2iv(sv); |
6839 | if (SvIOK(sv)) | |
6840 | goto oops_its_int; | |
6841 | ||
6842 | /* sv_2iv *should* have made this an NV */ | |
6843 | if (flags & SVp_NOK) { | |
6844 | (void)SvNOK_only(sv); | |
0da6cfda | 6845 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
6846 | return; |
6847 | } | |
6848 | /* I don't think we can get here. Maybe I should assert this | |
6849 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6850 | Fall through. */ | |
6851 | #if defined(USE_LONG_DOUBLE) | |
6852 | 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 | 6853 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 | 6854 | #else |
1779d84d | 6855 | 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 | 6856 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 JH |
6857 | #endif |
6858 | } | |
6859 | } | |
6860 | #endif /* PERL_PRESERVE_IVUV */ | |
fdac8c4b | 6861 | sv_setnv(sv,Atof(SvPVX_const(sv)) - 1.0); /* punt */ |
79072805 LW |
6862 | } |
6863 | ||
954c1994 GS |
6864 | /* |
6865 | =for apidoc sv_mortalcopy | |
6866 | ||
645c22ef | 6867 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6868 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6869 | explicit call to FREETMPS, or by an implicit call at places such as | |
6870 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6871 | |
6872 | =cut | |
6873 | */ | |
6874 | ||
79072805 LW |
6875 | /* Make a string that will exist for the duration of the expression |
6876 | * evaluation. Actually, it may have to last longer than that, but | |
6877 | * hopefully we won't free it until it has been assigned to a | |
6878 | * permanent location. */ | |
6879 | ||
6880 | SV * | |
864dbfa3 | 6881 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6882 | { |
463ee0b2 | 6883 | register SV *sv; |
b881518d | 6884 | |
4561caa4 | 6885 | new_SV(sv); |
79072805 | 6886 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6887 | EXTEND_MORTAL(1); |
6888 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6889 | SvTEMP_on(sv); |
6890 | return sv; | |
6891 | } | |
6892 | ||
954c1994 GS |
6893 | /* |
6894 | =for apidoc sv_newmortal | |
6895 | ||
645c22ef | 6896 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6897 | set to 1. It will be destroyed "soon", either by an explicit call to |
6898 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6899 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6900 | |
6901 | =cut | |
6902 | */ | |
6903 | ||
8990e307 | 6904 | SV * |
864dbfa3 | 6905 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6906 | { |
6907 | register SV *sv; | |
6908 | ||
4561caa4 | 6909 | new_SV(sv); |
8990e307 | 6910 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6911 | EXTEND_MORTAL(1); |
6912 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6913 | return sv; |
6914 | } | |
6915 | ||
954c1994 GS |
6916 | /* |
6917 | =for apidoc sv_2mortal | |
6918 | ||
d4236ebc DM |
6919 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6920 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
7aa747bc A |
6921 | statement boundaries. SvTEMP() is turned on which means that the SV's |
6922 | string buffer can be "stolen" if this SV is copied. See also C<sv_newmortal> | |
6923 | and C<sv_mortalcopy>. | |
954c1994 GS |
6924 | |
6925 | =cut | |
6926 | */ | |
6927 | ||
79072805 | 6928 | SV * |
864dbfa3 | 6929 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6930 | { |
6931 | if (!sv) | |
6932 | return sv; | |
d689ffdd | 6933 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6934 | return sv; |
677b06e3 GS |
6935 | EXTEND_MORTAL(1); |
6936 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6937 | SvTEMP_on(sv); |
79072805 LW |
6938 | return sv; |
6939 | } | |
6940 | ||
954c1994 GS |
6941 | /* |
6942 | =for apidoc newSVpv | |
6943 | ||
6944 | Creates a new SV and copies a string into it. The reference count for the | |
6945 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6946 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6947 | ||
6948 | =cut | |
6949 | */ | |
6950 | ||
79072805 | 6951 | SV * |
864dbfa3 | 6952 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6953 | { |
463ee0b2 | 6954 | register SV *sv; |
79072805 | 6955 | |
4561caa4 | 6956 | new_SV(sv); |
2a8de9e2 | 6957 | sv_setpvn(sv,s,len ? len : strlen(s)); |
79072805 LW |
6958 | return sv; |
6959 | } | |
6960 | ||
954c1994 GS |
6961 | /* |
6962 | =for apidoc newSVpvn | |
6963 | ||
6964 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6965 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 | 6966 | string. You are responsible for ensuring that the source string is at least |
611e9550 | 6967 | C<len> bytes long. If the C<s> argument is NULL the new SV will be undefined. |
954c1994 GS |
6968 | |
6969 | =cut | |
6970 | */ | |
6971 | ||
9da1e3b5 | 6972 | SV * |
864dbfa3 | 6973 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6974 | { |
6975 | register SV *sv; | |
6976 | ||
6977 | new_SV(sv); | |
9da1e3b5 MUN |
6978 | sv_setpvn(sv,s,len); |
6979 | return sv; | |
6980 | } | |
6981 | ||
740075a2 NC |
6982 | |
6983 | /* | |
0e61ce87 | 6984 | =for apidoc newSVhek |
740075a2 NC |
6985 | |
6986 | Creates a new SV from the hash key structure. It will generate scalars that | |
6987 | point to the shared string table where possible. Returns a new (undefined) | |
6988 | SV if the hek is NULL. | |
6989 | ||
6990 | =cut | |
6991 | */ | |
6992 | ||
6993 | SV * | |
6994 | Perl_newSVhek(pTHX_ const HEK *hek) | |
6995 | { | |
6996 | if (!hek) { | |
6997 | SV *sv; | |
6998 | ||
6999 | new_SV(sv); | |
7000 | return sv; | |
7001 | } | |
7002 | ||
7003 | if (HEK_LEN(hek) == HEf_SVKEY) { | |
7004 | return newSVsv(*(SV**)HEK_KEY(hek)); | |
7005 | } else { | |
7006 | const int flags = HEK_FLAGS(hek); | |
7007 | if (flags & HVhek_WASUTF8) { | |
7008 | /* Trouble :-) | |
7009 | Andreas would like keys he put in as utf8 to come back as utf8 | |
7010 | */ | |
7011 | STRLEN utf8_len = HEK_LEN(hek); | |
e4a519ba AL |
7012 | const U8 *as_utf8 = bytes_to_utf8 ((U8*)HEK_KEY(hek), &utf8_len); |
7013 | SV * const sv = newSVpvn ((const char*)as_utf8, utf8_len); | |
740075a2 NC |
7014 | |
7015 | SvUTF8_on (sv); | |
7016 | Safefree (as_utf8); /* bytes_to_utf8() allocates a new string */ | |
7017 | return sv; | |
7018 | } else if (flags & HVhek_REHASH) { | |
7019 | /* We don't have a pointer to the hv, so we have to replicate the | |
7020 | flag into every HEK. This hv is using custom a hasing | |
7021 | algorithm. Hence we can't return a shared string scalar, as | |
7022 | that would contain the (wrong) hash value, and might get passed | |
7023 | into an hv routine with a regular hash */ | |
7024 | ||
e4a519ba | 7025 | SV * const sv = newSVpvn (HEK_KEY(hek), HEK_LEN(hek)); |
740075a2 NC |
7026 | if (HEK_UTF8(hek)) |
7027 | SvUTF8_on (sv); | |
7028 | return sv; | |
7029 | } | |
7030 | /* This will be overwhelminly the most common case. */ | |
7031 | return newSVpvn_share(HEK_KEY(hek), | |
7032 | (HEK_UTF8(hek) ? -HEK_LEN(hek) : HEK_LEN(hek)), | |
7033 | HEK_HASH(hek)); | |
7034 | } | |
7035 | } | |
7036 | ||
1c846c1f NIS |
7037 | /* |
7038 | =for apidoc newSVpvn_share | |
7039 | ||
fdac8c4b | 7040 | Creates a new SV with its SvPVX_const pointing to a shared string in the string |
645c22ef DM |
7041 | table. If the string does not already exist in the table, it is created |
7042 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
7043 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
7044 | otherwise the hash is computed. The idea here is that as the string table | |
fdac8c4b | 7045 | is used for shared hash keys these strings will have SvPVX_const == HeKEY and |
645c22ef | 7046 | hash lookup will avoid string compare. |
1c846c1f NIS |
7047 | |
7048 | =cut | |
7049 | */ | |
7050 | ||
7051 | SV * | |
c3654f1a | 7052 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
7053 | { |
7054 | register SV *sv; | |
c3654f1a IH |
7055 | bool is_utf8 = FALSE; |
7056 | if (len < 0) { | |
77caf834 | 7057 | STRLEN tmplen = -len; |
c3654f1a | 7058 | is_utf8 = TRUE; |
75a54232 | 7059 | /* See the note in hv.c:hv_fetch() --jhi */ |
c05e0e2f | 7060 | src = (char*)bytes_from_utf8((const U8*)src, &tmplen, &is_utf8); |
75a54232 JH |
7061 | len = tmplen; |
7062 | } | |
1c846c1f | 7063 | if (!hash) |
5afd6d42 | 7064 | PERL_HASH(hash, src, len); |
1c846c1f NIS |
7065 | new_SV(sv); |
7066 | sv_upgrade(sv, SVt_PVIV); | |
0da6cfda | 7067 | SvPV_set(sv, sharepvn(src, is_utf8?-len:len, hash)); |
a8dc4fe8 | 7068 | SvCUR_set(sv, len); |
0da6cfda | 7069 | SvUV_set(sv, hash); |
a8dc4fe8 | 7070 | SvLEN_set(sv, 0); |
1c846c1f NIS |
7071 | SvREADONLY_on(sv); |
7072 | SvFAKE_on(sv); | |
7073 | SvPOK_on(sv); | |
c3654f1a IH |
7074 | if (is_utf8) |
7075 | SvUTF8_on(sv); | |
1c846c1f NIS |
7076 | return sv; |
7077 | } | |
7078 | ||
645c22ef | 7079 | |
cea2e8a9 | 7080 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7081 | |
7082 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7083 | * version of the main function, (which may itself be aliased to us). | |
7084 | * Don't access this version directly. | |
7085 | */ | |
7086 | ||
46fc3d4c | 7087 | SV * |
cea2e8a9 | 7088 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 7089 | { |
cea2e8a9 | 7090 | dTHX; |
46fc3d4c | 7091 | register SV *sv; |
7092 | va_list args; | |
46fc3d4c | 7093 | va_start(args, pat); |
c5be433b | 7094 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 7095 | va_end(args); |
7096 | return sv; | |
7097 | } | |
cea2e8a9 | 7098 | #endif |
46fc3d4c | 7099 | |
954c1994 GS |
7100 | /* |
7101 | =for apidoc newSVpvf | |
7102 | ||
645c22ef | 7103 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
7104 | C<sprintf>. |
7105 | ||
7106 | =cut | |
7107 | */ | |
7108 | ||
cea2e8a9 GS |
7109 | SV * |
7110 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
7111 | { | |
7112 | register SV *sv; | |
7113 | va_list args; | |
cea2e8a9 | 7114 | va_start(args, pat); |
c5be433b | 7115 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
7116 | va_end(args); |
7117 | return sv; | |
7118 | } | |
46fc3d4c | 7119 | |
645c22ef DM |
7120 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
7121 | ||
79072805 | 7122 | SV * |
c5be433b GS |
7123 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
7124 | { | |
7125 | register SV *sv; | |
7126 | new_SV(sv); | |
7127 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7128 | return sv; | |
7129 | } | |
7130 | ||
954c1994 GS |
7131 | /* |
7132 | =for apidoc newSVnv | |
7133 | ||
7134 | Creates a new SV and copies a floating point value into it. | |
7135 | The reference count for the SV is set to 1. | |
7136 | ||
7137 | =cut | |
7138 | */ | |
7139 | ||
c5be433b | 7140 | SV * |
65202027 | 7141 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 7142 | { |
463ee0b2 | 7143 | register SV *sv; |
79072805 | 7144 | |
4561caa4 | 7145 | new_SV(sv); |
79072805 LW |
7146 | sv_setnv(sv,n); |
7147 | return sv; | |
7148 | } | |
7149 | ||
954c1994 GS |
7150 | /* |
7151 | =for apidoc newSViv | |
7152 | ||
7153 | Creates a new SV and copies an integer into it. The reference count for the | |
7154 | SV is set to 1. | |
7155 | ||
7156 | =cut | |
7157 | */ | |
7158 | ||
79072805 | 7159 | SV * |
864dbfa3 | 7160 | Perl_newSViv(pTHX_ IV i) |
79072805 | 7161 | { |
463ee0b2 | 7162 | register SV *sv; |
79072805 | 7163 | |
4561caa4 | 7164 | new_SV(sv); |
79072805 LW |
7165 | sv_setiv(sv,i); |
7166 | return sv; | |
7167 | } | |
7168 | ||
954c1994 | 7169 | /* |
1a3327fb JH |
7170 | =for apidoc newSVuv |
7171 | ||
7172 | Creates a new SV and copies an unsigned integer into it. | |
7173 | The reference count for the SV is set to 1. | |
7174 | ||
7175 | =cut | |
7176 | */ | |
7177 | ||
7178 | SV * | |
7179 | Perl_newSVuv(pTHX_ UV u) | |
7180 | { | |
7181 | register SV *sv; | |
7182 | ||
7183 | new_SV(sv); | |
7184 | sv_setuv(sv,u); | |
7185 | return sv; | |
7186 | } | |
7187 | ||
7188 | /* | |
954c1994 GS |
7189 | =for apidoc newRV_noinc |
7190 | ||
7191 | Creates an RV wrapper for an SV. The reference count for the original | |
7192 | SV is B<not> incremented. | |
7193 | ||
7194 | =cut | |
7195 | */ | |
7196 | ||
2304df62 | 7197 | SV * |
864dbfa3 | 7198 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
7199 | { |
7200 | register SV *sv; | |
7201 | ||
4561caa4 | 7202 | new_SV(sv); |
2304df62 | 7203 | sv_upgrade(sv, SVt_RV); |
76e3520e | 7204 | SvTEMP_off(tmpRef); |
a8dc4fe8 | 7205 | SvRV_set(sv, tmpRef); |
2304df62 | 7206 | SvROK_on(sv); |
2304df62 AD |
7207 | return sv; |
7208 | } | |
7209 | ||
ff276b08 | 7210 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
7211 | * newRV_inc is in fact #defined to newRV in sv.h |
7212 | */ | |
7213 | ||
5f05dabc | 7214 | SV * |
864dbfa3 | 7215 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 7216 | { |
5f6447b6 | 7217 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 7218 | } |
5f05dabc | 7219 | |
954c1994 GS |
7220 | /* |
7221 | =for apidoc newSVsv | |
7222 | ||
7223 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 7224 | (Uses C<sv_setsv>). |
954c1994 GS |
7225 | |
7226 | =cut | |
7227 | */ | |
7228 | ||
79072805 | 7229 | SV * |
864dbfa3 | 7230 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 7231 | { |
463ee0b2 | 7232 | register SV *sv; |
79072805 LW |
7233 | |
7234 | if (!old) | |
7235 | return Nullsv; | |
8990e307 | 7236 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 7237 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 7238 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
7239 | return Nullsv; |
7240 | } | |
4561caa4 | 7241 | new_SV(sv); |
3965bf69 NC |
7242 | /* SV_GMAGIC is the default for sv_setv() |
7243 | SV_NOSTEAL prevents TEMP buffers being, well, stolen, and saves games | |
7244 | with SvTEMP_off and SvTEMP_on round a call to sv_setsv. */ | |
7245 | sv_setsv_flags(sv, old, SV_GMAGIC | SV_NOSTEAL); | |
463ee0b2 | 7246 | return sv; |
79072805 LW |
7247 | } |
7248 | ||
645c22ef DM |
7249 | /* |
7250 | =for apidoc sv_reset | |
7251 | ||
7252 | Underlying implementation for the C<reset> Perl function. | |
7253 | Note that the perl-level function is vaguely deprecated. | |
7254 | ||
7255 | =cut | |
7256 | */ | |
7257 | ||
79072805 | 7258 | void |
864dbfa3 | 7259 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 | 7260 | { |
79072805 | 7261 | register PMOP *pm; |
4802d5d7 | 7262 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 7263 | |
49d8d3a1 MB |
7264 | if (!stash) |
7265 | return; | |
7266 | ||
79072805 LW |
7267 | if (!*s) { /* reset ?? searches */ |
7268 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 7269 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
7270 | } |
7271 | return; | |
7272 | } | |
7273 | ||
7274 | /* reset variables */ | |
7275 | ||
7276 | if (!HvARRAY(stash)) | |
7277 | return; | |
463ee0b2 LW |
7278 | |
7279 | Zero(todo, 256, char); | |
79072805 | 7280 | while (*s) { |
481da01c AL |
7281 | I32 max; |
7282 | I32 i = (unsigned char)*s; | |
79072805 LW |
7283 | if (s[1] == '-') { |
7284 | s += 2; | |
7285 | } | |
4802d5d7 | 7286 | max = (unsigned char)*s++; |
79072805 | 7287 | for ( ; i <= max; i++) { |
463ee0b2 LW |
7288 | todo[i] = 1; |
7289 | } | |
a0d0e21e | 7290 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
481da01c | 7291 | HE *entry; |
79072805 | 7292 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
7293 | entry; |
7294 | entry = HeNEXT(entry)) | |
7295 | { | |
481da01c AL |
7296 | register GV *gv; |
7297 | register SV *sv; | |
7298 | ||
1edc1566 | 7299 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 7300 | continue; |
1edc1566 | 7301 | gv = (GV*)HeVAL(entry); |
79072805 | 7302 | sv = GvSV(gv); |
83fd6193 NC |
7303 | if (sv) { |
7304 | if (SvTHINKFIRST(sv)) { | |
7305 | if (!SvREADONLY(sv) && SvROK(sv)) | |
7306 | sv_unref(sv); | |
7307 | /* XXX Is this continue a bug? Why should THINKFIRST | |
7308 | exempt us from resetting arrays and hashes? */ | |
7309 | continue; | |
7310 | } | |
7311 | SvOK_off(sv); | |
7312 | if (SvTYPE(sv) >= SVt_PV) { | |
7313 | SvCUR_set(sv, 0); | |
7314 | if (SvPVX_const(sv) != Nullch) | |
7315 | *SvPVX(sv) = '\0'; | |
7316 | SvTAINT(sv); | |
7317 | } | |
79072805 LW |
7318 | } |
7319 | if (GvAV(gv)) { | |
7320 | av_clear(GvAV(gv)); | |
7321 | } | |
26ab6a78 | 7322 | if (GvHV(gv) && !HvNAME_get(GvHV(gv))) { |
463ee0b2 | 7323 | hv_clear(GvHV(gv)); |
75a5c1c6 | 7324 | #ifndef PERL_MICRO |
fa6a1c44 | 7325 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
7326 | if (gv == PL_envgv |
7327 | # ifdef USE_ITHREADS | |
7328 | && PL_curinterp == aTHX | |
7329 | # endif | |
7330 | ) | |
7331 | { | |
79072805 | 7332 | environ[0] = Nullch; |
4efc5df6 | 7333 | } |
a0d0e21e | 7334 | #endif |
75a5c1c6 | 7335 | #endif /* !PERL_MICRO */ |
79072805 LW |
7336 | } |
7337 | } | |
7338 | } | |
7339 | } | |
7340 | } | |
7341 | ||
645c22ef DM |
7342 | /* |
7343 | =for apidoc sv_2io | |
7344 | ||
7345 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
7346 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
7347 | named after the PV if we're a string. | |
7348 | ||
7349 | =cut | |
7350 | */ | |
7351 | ||
46fc3d4c | 7352 | IO* |
864dbfa3 | 7353 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 7354 | { |
7355 | IO* io; | |
7356 | GV* gv; | |
2d8e6c8d | 7357 | STRLEN n_a; |
46fc3d4c | 7358 | |
7359 | switch (SvTYPE(sv)) { | |
7360 | case SVt_PVIO: | |
7361 | io = (IO*)sv; | |
7362 | break; | |
7363 | case SVt_PVGV: | |
7364 | gv = (GV*)sv; | |
7365 | io = GvIO(gv); | |
7366 | if (!io) | |
cea2e8a9 | 7367 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 7368 | break; |
7369 | default: | |
7370 | if (!SvOK(sv)) | |
cea2e8a9 | 7371 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 7372 | if (SvROK(sv)) |
7373 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 7374 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 7375 | if (gv) |
7376 | io = GvIO(gv); | |
7377 | else | |
7378 | io = 0; | |
7379 | if (!io) | |
c293eb2b | 7380 | Perl_croak(aTHX_ "Bad filehandle: %"SVf, sv); |
46fc3d4c | 7381 | break; |
7382 | } | |
7383 | return io; | |
7384 | } | |
7385 | ||
645c22ef DM |
7386 | /* |
7387 | =for apidoc sv_2cv | |
7388 | ||
7389 | Using various gambits, try to get a CV from an SV; in addition, try if | |
7390 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
7391 | ||
7392 | =cut | |
7393 | */ | |
7394 | ||
79072805 | 7395 | CV * |
864dbfa3 | 7396 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 7397 | { |
c04a4dfe JH |
7398 | GV *gv = Nullgv; |
7399 | CV *cv = Nullcv; | |
2d8e6c8d | 7400 | STRLEN n_a; |
79072805 LW |
7401 | |
7402 | if (!sv) | |
93a17b20 | 7403 | return *gvp = Nullgv, Nullcv; |
79072805 | 7404 | switch (SvTYPE(sv)) { |
79072805 LW |
7405 | case SVt_PVCV: |
7406 | *st = CvSTASH(sv); | |
7407 | *gvp = Nullgv; | |
7408 | return (CV*)sv; | |
7409 | case SVt_PVHV: | |
7410 | case SVt_PVAV: | |
7411 | *gvp = Nullgv; | |
7412 | return Nullcv; | |
8990e307 LW |
7413 | case SVt_PVGV: |
7414 | gv = (GV*)sv; | |
a0d0e21e | 7415 | *gvp = gv; |
8990e307 LW |
7416 | *st = GvESTASH(gv); |
7417 | goto fix_gv; | |
7418 | ||
79072805 | 7419 | default: |
a0d0e21e LW |
7420 | if (SvGMAGICAL(sv)) |
7421 | mg_get(sv); | |
7422 | if (SvROK(sv)) { | |
f5284f61 IZ |
7423 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
7424 | tryAMAGICunDEREF(to_cv); | |
7425 | ||
62f274bf GS |
7426 | sv = SvRV(sv); |
7427 | if (SvTYPE(sv) == SVt_PVCV) { | |
7428 | cv = (CV*)sv; | |
7429 | *gvp = Nullgv; | |
7430 | *st = CvSTASH(cv); | |
7431 | return cv; | |
7432 | } | |
7433 | else if(isGV(sv)) | |
7434 | gv = (GV*)sv; | |
7435 | else | |
cea2e8a9 | 7436 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 7437 | } |
62f274bf | 7438 | else if (isGV(sv)) |
79072805 LW |
7439 | gv = (GV*)sv; |
7440 | else | |
2d8e6c8d | 7441 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
7442 | *gvp = gv; |
7443 | if (!gv) | |
7444 | return Nullcv; | |
7445 | *st = GvESTASH(gv); | |
8990e307 | 7446 | fix_gv: |
8ebc5c01 | 7447 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 7448 | SV *tmpsv; |
748a9306 | 7449 | ENTER; |
4633a7c4 | 7450 | tmpsv = NEWSV(704,0); |
16660edb | 7451 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
7452 | /* XXX this is probably not what they think they're getting. |
7453 | * It has the same effect as "sub name;", i.e. just a forward | |
7454 | * declaration! */ | |
774d564b | 7455 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
7456 | newSVOP(OP_CONST, 0, tmpsv), |
7457 | Nullop, | |
8990e307 | 7458 | Nullop); |
748a9306 | 7459 | LEAVE; |
8ebc5c01 | 7460 | if (!GvCVu(gv)) |
c293eb2b NC |
7461 | Perl_croak(aTHX_ "Unable to create sub named \"%"SVf"\"", |
7462 | sv); | |
8990e307 | 7463 | } |
8ebc5c01 | 7464 | return GvCVu(gv); |
79072805 LW |
7465 | } |
7466 | } | |
7467 | ||
c461cf8f JH |
7468 | /* |
7469 | =for apidoc sv_true | |
7470 | ||
7471 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
7472 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
7473 | instead use an in-line version. | |
c461cf8f JH |
7474 | |
7475 | =cut | |
7476 | */ | |
7477 | ||
79072805 | 7478 | I32 |
864dbfa3 | 7479 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 7480 | { |
8990e307 LW |
7481 | if (!sv) |
7482 | return 0; | |
79072805 | 7483 | if (SvPOK(sv)) { |
c05e0e2f | 7484 | const register XPV* tXpv; |
4e35701f | 7485 | if ((tXpv = (XPV*)SvANY(sv)) && |
c2f1de04 | 7486 | (tXpv->xpv_cur > 1 || |
4e35701f | 7487 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
7488 | return 1; |
7489 | else | |
7490 | return 0; | |
7491 | } | |
7492 | else { | |
7493 | if (SvIOK(sv)) | |
463ee0b2 | 7494 | return SvIVX(sv) != 0; |
79072805 LW |
7495 | else { |
7496 | if (SvNOK(sv)) | |
463ee0b2 | 7497 | return SvNVX(sv) != 0.0; |
79072805 | 7498 | else |
463ee0b2 | 7499 | return sv_2bool(sv); |
79072805 LW |
7500 | } |
7501 | } | |
7502 | } | |
79072805 | 7503 | |
645c22ef DM |
7504 | /* |
7505 | =for apidoc sv_iv | |
7506 | ||
7507 | A private implementation of the C<SvIVx> macro for compilers which can't | |
7508 | cope with complex macro expressions. Always use the macro instead. | |
7509 | ||
7510 | =cut | |
7511 | */ | |
7512 | ||
ff68c719 | 7513 | IV |
864dbfa3 | 7514 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 7515 | { |
25da4f38 IZ |
7516 | if (SvIOK(sv)) { |
7517 | if (SvIsUV(sv)) | |
7518 | return (IV)SvUVX(sv); | |
ff68c719 | 7519 | return SvIVX(sv); |
25da4f38 | 7520 | } |
ff68c719 | 7521 | return sv_2iv(sv); |
85e6fe83 | 7522 | } |
85e6fe83 | 7523 | |
645c22ef DM |
7524 | /* |
7525 | =for apidoc sv_uv | |
7526 | ||
7527 | A private implementation of the C<SvUVx> macro for compilers which can't | |
7528 | cope with complex macro expressions. Always use the macro instead. | |
7529 | ||
7530 | =cut | |
7531 | */ | |
7532 | ||
ff68c719 | 7533 | UV |
864dbfa3 | 7534 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 7535 | { |
25da4f38 IZ |
7536 | if (SvIOK(sv)) { |
7537 | if (SvIsUV(sv)) | |
7538 | return SvUVX(sv); | |
7539 | return (UV)SvIVX(sv); | |
7540 | } | |
ff68c719 | 7541 | return sv_2uv(sv); |
7542 | } | |
85e6fe83 | 7543 | |
645c22ef DM |
7544 | /* |
7545 | =for apidoc sv_nv | |
7546 | ||
7547 | A private implementation of the C<SvNVx> macro for compilers which can't | |
7548 | cope with complex macro expressions. Always use the macro instead. | |
7549 | ||
7550 | =cut | |
7551 | */ | |
7552 | ||
65202027 | 7553 | NV |
864dbfa3 | 7554 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 7555 | { |
ff68c719 | 7556 | if (SvNOK(sv)) |
7557 | return SvNVX(sv); | |
7558 | return sv_2nv(sv); | |
79072805 | 7559 | } |
79072805 | 7560 | |
d34f9d2e JH |
7561 | /* sv_pv() is now a macro using SvPV_nolen(); |
7562 | * this function provided for binary compatibility only | |
7563 | */ | |
7564 | ||
7565 | char * | |
7566 | Perl_sv_pv(pTHX_ SV *sv) | |
7567 | { | |
d34f9d2e JH |
7568 | if (SvPOK(sv)) |
7569 | return SvPVX(sv); | |
7570 | ||
23c2bb70 | 7571 | return sv_2pv(sv, 0); |
d34f9d2e JH |
7572 | } |
7573 | ||
645c22ef DM |
7574 | /* |
7575 | =for apidoc sv_pv | |
7576 | ||
baca2b92 | 7577 | Use the C<SvPV_nolen> macro instead |
645c22ef | 7578 | |
645c22ef DM |
7579 | =for apidoc sv_pvn |
7580 | ||
7581 | A private implementation of the C<SvPV> macro for compilers which can't | |
7582 | cope with complex macro expressions. Always use the macro instead. | |
7583 | ||
7584 | =cut | |
7585 | */ | |
7586 | ||
1fa8b10d | 7587 | char * |
864dbfa3 | 7588 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 7589 | { |
85e6fe83 LW |
7590 | if (SvPOK(sv)) { |
7591 | *lp = SvCUR(sv); | |
a0d0e21e | 7592 | return SvPVX(sv); |
85e6fe83 | 7593 | } |
463ee0b2 | 7594 | return sv_2pv(sv, lp); |
79072805 | 7595 | } |
79072805 | 7596 | |
6e9d1081 NC |
7597 | |
7598 | char * | |
7599 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
7600 | { | |
7601 | if (SvPOK(sv)) { | |
7602 | *lp = SvCUR(sv); | |
7603 | return SvPVX(sv); | |
7604 | } | |
7605 | return sv_2pv_flags(sv, lp, 0); | |
7606 | } | |
7607 | ||
d34f9d2e JH |
7608 | /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags(); |
7609 | * this function provided for binary compatibility only | |
7610 | */ | |
7611 | ||
7612 | char * | |
7613 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) | |
7614 | { | |
7615 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); | |
7616 | } | |
7617 | ||
c461cf8f JH |
7618 | /* |
7619 | =for apidoc sv_pvn_force | |
7620 | ||
7621 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
7622 | A private implementation of the C<SvPV_force> macro for compilers which |
7623 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 7624 | |
8d6d96c1 HS |
7625 | =for apidoc sv_pvn_force_flags |
7626 | ||
7627 | Get a sensible string out of the SV somehow. | |
7628 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
7629 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
7630 | implemented in terms of this function. | |
645c22ef DM |
7631 | You normally want to use the various wrapper macros instead: see |
7632 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
7633 | |
7634 | =cut | |
7635 | */ | |
7636 | ||
7637 | char * | |
7638 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
7639 | { | |
a0d0e21e | 7640 | |
6fc92669 GS |
7641 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
7642 | sv_force_normal(sv); | |
1c846c1f | 7643 | |
a0d0e21e | 7644 | if (SvPOK(sv)) { |
291a7e74 NC |
7645 | if (lp) |
7646 | *lp = SvCUR(sv); | |
a0d0e21e LW |
7647 | } |
7648 | else { | |
8c18bf38 | 7649 | char *s; |
291a7e74 NC |
7650 | STRLEN len; |
7651 | ||
287c580e | 7652 | if (SvREADONLY(sv) && !(flags & SV_MUTABLE_RETURN)) { |
e4a519ba | 7653 | const char * const ref = sv_reftype(sv,0); |
287c580e NC |
7654 | if (PL_op) |
7655 | Perl_croak(aTHX_ "Can't coerce readonly %s to string in %s", | |
e4a519ba | 7656 | ref, OP_NAME(PL_op)); |
287c580e | 7657 | else |
e4a519ba | 7658 | Perl_croak(aTHX_ "Can't coerce readonly %s to string", ref); |
287c580e | 7659 | } |
e4a519ba | 7660 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) |
cea2e8a9 | 7661 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 7662 | OP_NAME(PL_op)); |
e4a519ba | 7663 | s = sv_2pv_flags(sv, &len, flags); |
291a7e74 NC |
7664 | if (lp) |
7665 | *lp = len; | |
7666 | ||
fdac8c4b | 7667 | if (s != SvPVX_const(sv)) { /* Almost, but not quite, sv_setpvn() */ |
a0d0e21e LW |
7668 | if (SvROK(sv)) |
7669 | sv_unref(sv); | |
7670 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
7671 | SvGROW(sv, len + 1); | |
fdac8c4b | 7672 | Move(s,SvPVX_const(sv),len,char); |
a0d0e21e LW |
7673 | SvCUR_set(sv, len); |
7674 | *SvEND(sv) = '\0'; | |
7675 | } | |
7676 | if (!SvPOK(sv)) { | |
7677 | SvPOK_on(sv); /* validate pointer */ | |
7678 | SvTAINT(sv); | |
1d7c1841 | 7679 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
fdac8c4b | 7680 | PTR2UV(sv),SvPVX_const(sv))); |
a0d0e21e LW |
7681 | } |
7682 | } | |
287c580e | 7683 | return SvPVX_mutable(sv); |
a0d0e21e LW |
7684 | } |
7685 | ||
d34f9d2e JH |
7686 | /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags(); |
7687 | * this function provided for binary compatibility only | |
7688 | */ | |
7689 | ||
7690 | char * | |
7691 | Perl_sv_pvbyte(pTHX_ SV *sv) | |
7692 | { | |
7693 | sv_utf8_downgrade(sv,0); | |
7694 | return sv_pv(sv); | |
7695 | } | |
7696 | ||
645c22ef DM |
7697 | /* |
7698 | =for apidoc sv_pvbyte | |
7699 | ||
baca2b92 | 7700 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 7701 | |
645c22ef DM |
7702 | =for apidoc sv_pvbyten |
7703 | ||
7704 | A private implementation of the C<SvPVbyte> macro for compilers | |
7705 | which can't cope with complex macro expressions. Always use the macro | |
7706 | instead. | |
7707 | ||
7708 | =cut | |
7709 | */ | |
7710 | ||
7340a771 GS |
7711 | char * |
7712 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
7713 | { | |
ffebcc3e | 7714 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7715 | return sv_pvn(sv,lp); |
7716 | } | |
7717 | ||
645c22ef DM |
7718 | /* |
7719 | =for apidoc sv_pvbyten_force | |
7720 | ||
7721 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
7722 | which can't cope with complex macro expressions. Always use the macro | |
7723 | instead. | |
7724 | ||
7725 | =cut | |
7726 | */ | |
7727 | ||
7340a771 GS |
7728 | char * |
7729 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
7730 | { | |
b035a42e | 7731 | sv_pvn_force(sv,lp); |
ffebcc3e | 7732 | sv_utf8_downgrade(sv,0); |
b035a42e NC |
7733 | *lp = SvCUR(sv); |
7734 | return SvPVX(sv); | |
7340a771 GS |
7735 | } |
7736 | ||
d34f9d2e JH |
7737 | /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags(); |
7738 | * this function provided for binary compatibility only | |
7739 | */ | |
7740 | ||
7741 | char * | |
7742 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
7743 | { | |
7744 | sv_utf8_upgrade(sv); | |
7745 | return sv_pv(sv); | |
7746 | } | |
7747 | ||
645c22ef DM |
7748 | /* |
7749 | =for apidoc sv_pvutf8 | |
7750 | ||
baca2b92 | 7751 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 7752 | |
645c22ef DM |
7753 | =for apidoc sv_pvutf8n |
7754 | ||
7755 | A private implementation of the C<SvPVutf8> macro for compilers | |
7756 | which can't cope with complex macro expressions. Always use the macro | |
7757 | instead. | |
7758 | ||
7759 | =cut | |
7760 | */ | |
7761 | ||
7340a771 GS |
7762 | char * |
7763 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
7764 | { | |
560a288e | 7765 | sv_utf8_upgrade(sv); |
7340a771 GS |
7766 | return sv_pvn(sv,lp); |
7767 | } | |
7768 | ||
c461cf8f JH |
7769 | /* |
7770 | =for apidoc sv_pvutf8n_force | |
7771 | ||
645c22ef DM |
7772 | A private implementation of the C<SvPVutf8_force> macro for compilers |
7773 | which can't cope with complex macro expressions. Always use the macro | |
7774 | instead. | |
c461cf8f JH |
7775 | |
7776 | =cut | |
7777 | */ | |
7778 | ||
7340a771 GS |
7779 | char * |
7780 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
7781 | { | |
b035a42e | 7782 | sv_pvn_force(sv,lp); |
560a288e | 7783 | sv_utf8_upgrade(sv); |
b035a42e NC |
7784 | *lp = SvCUR(sv); |
7785 | return SvPVX(sv); | |
7340a771 GS |
7786 | } |
7787 | ||
c461cf8f JH |
7788 | /* |
7789 | =for apidoc sv_reftype | |
7790 | ||
7791 | Returns a string describing what the SV is a reference to. | |
7792 | ||
7793 | =cut | |
7794 | */ | |
7795 | ||
7340a771 | 7796 | char * |
864dbfa3 | 7797 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 7798 | { |
206b424e NC |
7799 | /* The fact that I don't need to downcast to char * everywhere, only in ?: |
7800 | inside return suggests a const propagation bug in g++. */ | |
c86bf373 | 7801 | if (ob && SvOBJECT(sv)) { |
ce7d4f40 | 7802 | char * const name = HvNAME_get(SvSTASH(sv)); |
206b424e | 7803 | return name ? name : (char *) "__ANON__"; |
c86bf373 | 7804 | } |
a0d0e21e LW |
7805 | else { |
7806 | switch (SvTYPE(sv)) { | |
7807 | case SVt_NULL: | |
7808 | case SVt_IV: | |
7809 | case SVt_NV: | |
7810 | case SVt_RV: | |
7811 | case SVt_PV: | |
7812 | case SVt_PVIV: | |
7813 | case SVt_PVNV: | |
7814 | case SVt_PVMG: | |
7815 | case SVt_PVBM: | |
7816 | if (SvROK(sv)) | |
7817 | return "REF"; | |
7818 | else | |
7819 | return "SCALAR"; | |
ec6f298e | 7820 | |
206b424e | 7821 | case SVt_PVLV: return (char *) (SvROK(sv) ? "REF" |
ac388100 JH |
7822 | /* tied lvalues should appear to be |
7823 | * scalars for backwards compatitbility */ | |
7824 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
206b424e | 7825 | ? "SCALAR" : "LVALUE"); |
a0d0e21e LW |
7826 | case SVt_PVAV: return "ARRAY"; |
7827 | case SVt_PVHV: return "HASH"; | |
7828 | case SVt_PVCV: return "CODE"; | |
7829 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 7830 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 7831 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
7832 | default: return "UNKNOWN"; |
7833 | } | |
7834 | } | |
7835 | } | |
7836 | ||
954c1994 GS |
7837 | /* |
7838 | =for apidoc sv_isobject | |
7839 | ||
7840 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7841 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7842 | will return false. | |
7843 | ||
7844 | =cut | |
7845 | */ | |
7846 | ||
463ee0b2 | 7847 | int |
864dbfa3 | 7848 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7849 | { |
68dc0745 | 7850 | if (!sv) |
7851 | return 0; | |
7852 | if (SvGMAGICAL(sv)) | |
7853 | mg_get(sv); | |
85e6fe83 LW |
7854 | if (!SvROK(sv)) |
7855 | return 0; | |
7856 | sv = (SV*)SvRV(sv); | |
7857 | if (!SvOBJECT(sv)) | |
7858 | return 0; | |
7859 | return 1; | |
7860 | } | |
7861 | ||
954c1994 GS |
7862 | /* |
7863 | =for apidoc sv_isa | |
7864 | ||
7865 | Returns a boolean indicating whether the SV is blessed into the specified | |
7866 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7867 | an inheritance relationship. | |
7868 | ||
7869 | =cut | |
7870 | */ | |
7871 | ||
85e6fe83 | 7872 | int |
864dbfa3 | 7873 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7874 | { |
26ab6a78 | 7875 | const char *hvname; |
68dc0745 | 7876 | if (!sv) |
7877 | return 0; | |
7878 | if (SvGMAGICAL(sv)) | |
7879 | mg_get(sv); | |
ed6116ce | 7880 | if (!SvROK(sv)) |
463ee0b2 | 7881 | return 0; |
ed6116ce LW |
7882 | sv = (SV*)SvRV(sv); |
7883 | if (!SvOBJECT(sv)) | |
463ee0b2 | 7884 | return 0; |
26ab6a78 NC |
7885 | hvname = HvNAME_get(SvSTASH(sv)); |
7886 | if (!hvname) | |
3198e4e5 | 7887 | return 0; |
463ee0b2 | 7888 | |
26ab6a78 | 7889 | return strEQ(hvname, name); |
463ee0b2 LW |
7890 | } |
7891 | ||
954c1994 GS |
7892 | /* |
7893 | =for apidoc newSVrv | |
7894 | ||
7895 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7896 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7897 | be blessed in the specified package. The new SV is returned and its | |
7898 | reference count is 1. | |
7899 | ||
7900 | =cut | |
7901 | */ | |
7902 | ||
463ee0b2 | 7903 | SV* |
864dbfa3 | 7904 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7905 | { |
463ee0b2 LW |
7906 | SV *sv; |
7907 | ||
4561caa4 | 7908 | new_SV(sv); |
51cf62d8 | 7909 | |
2213622d | 7910 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 7911 | SvAMAGIC_off(rv); |
51cf62d8 | 7912 | |
0199fce9 | 7913 | if (SvTYPE(rv) >= SVt_PVMG) { |
8c18bf38 | 7914 | const U32 refcnt = SvREFCNT(rv); |
0199fce9 JD |
7915 | SvREFCNT(rv) = 0; |
7916 | sv_clear(rv); | |
7917 | SvFLAGS(rv) = 0; | |
7918 | SvREFCNT(rv) = refcnt; | |
7919 | } | |
7920 | ||
51cf62d8 | 7921 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7922 | sv_upgrade(rv, SVt_RV); |
7923 | else if (SvTYPE(rv) > SVt_RV) { | |
676a626c | 7924 | SvPV_free(rv); |
0199fce9 JD |
7925 | SvCUR_set(rv, 0); |
7926 | SvLEN_set(rv, 0); | |
7927 | } | |
51cf62d8 | 7928 | |
7460c263 | 7929 | SvOK_off(rv); |
a8dc4fe8 | 7930 | SvRV_set(rv, sv); |
ed6116ce | 7931 | SvROK_on(rv); |
463ee0b2 | 7932 | |
a0d0e21e | 7933 | if (classname) { |
ce7d4f40 | 7934 | HV* const stash = gv_stashpv(classname, TRUE); |
a0d0e21e LW |
7935 | (void)sv_bless(rv, stash); |
7936 | } | |
7937 | return sv; | |
7938 | } | |
7939 | ||
954c1994 GS |
7940 | /* |
7941 | =for apidoc sv_setref_pv | |
7942 | ||
7943 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7944 | argument will be upgraded to an RV. That RV will be modified to point to | |
7945 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7946 | into the SV. The C<classname> argument indicates the package for the | |
7947 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7948 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7949 | |
7950 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7951 | objects will become corrupted by the pointer copy process. | |
7952 | ||
7953 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7954 | ||
7955 | =cut | |
7956 | */ | |
7957 | ||
a0d0e21e | 7958 | SV* |
864dbfa3 | 7959 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7960 | { |
189b2af5 | 7961 | if (!pv) { |
3280af22 | 7962 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7963 | SvSETMAGIC(rv); |
7964 | } | |
a0d0e21e | 7965 | else |
56431972 | 7966 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7967 | return rv; |
7968 | } | |
7969 | ||
954c1994 GS |
7970 | /* |
7971 | =for apidoc sv_setref_iv | |
7972 | ||
7973 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7974 | argument will be upgraded to an RV. That RV will be modified to point to | |
7975 | the new SV. The C<classname> argument indicates the package for the | |
7976 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7977 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7978 | |
7979 | =cut | |
7980 | */ | |
7981 | ||
a0d0e21e | 7982 | SV* |
864dbfa3 | 7983 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7984 | { |
7985 | sv_setiv(newSVrv(rv,classname), iv); | |
7986 | return rv; | |
7987 | } | |
7988 | ||
954c1994 | 7989 | /* |
e1c57cef JH |
7990 | =for apidoc sv_setref_uv |
7991 | ||
7992 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7993 | argument will be upgraded to an RV. That RV will be modified to point to | |
7994 | the new SV. The C<classname> argument indicates the package for the | |
7995 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7996 | will have a reference count of 1, and the RV will be returned. |
e1c57cef JH |
7997 | |
7998 | =cut | |
7999 | */ | |
8000 | ||
8001 | SV* | |
8002 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
8003 | { | |
8004 | sv_setuv(newSVrv(rv,classname), uv); | |
8005 | return rv; | |
8006 | } | |
8007 | ||
8008 | /* | |
954c1994 GS |
8009 | =for apidoc sv_setref_nv |
8010 | ||
8011 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
8012 | argument will be upgraded to an RV. That RV will be modified to point to | |
8013 | the new SV. The C<classname> argument indicates the package for the | |
8014 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 8015 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
8016 | |
8017 | =cut | |
8018 | */ | |
8019 | ||
a0d0e21e | 8020 | SV* |
65202027 | 8021 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
8022 | { |
8023 | sv_setnv(newSVrv(rv,classname), nv); | |
8024 | return rv; | |
8025 | } | |
463ee0b2 | 8026 | |
954c1994 GS |
8027 | /* |
8028 | =for apidoc sv_setref_pvn | |
8029 | ||
8030 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
8031 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
8032 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
8033 | argument indicates the package for the blessing. Set C<classname> to | |
89e79dea JH |
8034 | C<Nullch> to avoid the blessing. The new SV will have a reference count |
8035 | of 1, and the RV will be returned. | |
954c1994 GS |
8036 | |
8037 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
8038 | ||
8039 | =cut | |
8040 | */ | |
8041 | ||
a0d0e21e | 8042 | SV* |
864dbfa3 | 8043 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
8044 | { |
8045 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
8046 | return rv; |
8047 | } | |
8048 | ||
954c1994 GS |
8049 | /* |
8050 | =for apidoc sv_bless | |
8051 | ||
8052 | Blesses an SV into a specified package. The SV must be an RV. The package | |
8053 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
8054 | of the SV is unaffected. | |
8055 | ||
8056 | =cut | |
8057 | */ | |
8058 | ||
a0d0e21e | 8059 | SV* |
864dbfa3 | 8060 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 8061 | { |
76e3520e | 8062 | SV *tmpRef; |
a0d0e21e | 8063 | if (!SvROK(sv)) |
cea2e8a9 | 8064 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
8065 | tmpRef = SvRV(sv); |
8066 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
8067 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 8068 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
8069 | if (SvOBJECT(tmpRef)) { |
8070 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 8071 | --PL_sv_objcount; |
76e3520e | 8072 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 8073 | } |
a0d0e21e | 8074 | } |
76e3520e GS |
8075 | SvOBJECT_on(tmpRef); |
8076 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 8077 | ++PL_sv_objcount; |
76e3520e | 8078 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
a8dc4fe8 | 8079 | SvSTASH_set(tmpRef, (HV*)SvREFCNT_inc(stash)); |
a0d0e21e | 8080 | |
2e3febc6 CS |
8081 | if (Gv_AMG(stash)) |
8082 | SvAMAGIC_on(sv); | |
8083 | else | |
8084 | SvAMAGIC_off(sv); | |
a0d0e21e | 8085 | |
1edbfb88 AB |
8086 | if(SvSMAGICAL(tmpRef)) |
8087 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
8088 | mg_set(tmpRef); | |
8089 | ||
8090 | ||
ecdeb87c | 8091 | |
a0d0e21e LW |
8092 | return sv; |
8093 | } | |
8094 | ||
645c22ef | 8095 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
8096 | */ |
8097 | ||
76e3520e | 8098 | STATIC void |
cea2e8a9 | 8099 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 8100 | { |
850fabdf GS |
8101 | void *xpvmg; |
8102 | ||
a0d0e21e LW |
8103 | assert(SvTYPE(sv) == SVt_PVGV); |
8104 | SvFAKE_off(sv); | |
8105 | if (GvGP(sv)) | |
1edc1566 | 8106 | gp_free((GV*)sv); |
e826b3c7 GS |
8107 | if (GvSTASH(sv)) { |
8108 | SvREFCNT_dec(GvSTASH(sv)); | |
8109 | GvSTASH(sv) = Nullhv; | |
8110 | } | |
14befaf4 | 8111 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 8112 | Safefree(GvNAME(sv)); |
a5f75d66 | 8113 | GvMULTI_off(sv); |
850fabdf GS |
8114 | |
8115 | /* need to keep SvANY(sv) in the right arena */ | |
8116 | xpvmg = new_XPVMG(); | |
8117 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
8118 | del_XPVGV(SvANY(sv)); | |
8119 | SvANY(sv) = xpvmg; | |
8120 | ||
a0d0e21e LW |
8121 | SvFLAGS(sv) &= ~SVTYPEMASK; |
8122 | SvFLAGS(sv) |= SVt_PVMG; | |
8123 | } | |
8124 | ||
954c1994 | 8125 | /* |
840a7b70 | 8126 | =for apidoc sv_unref_flags |
954c1994 GS |
8127 | |
8128 | Unsets the RV status of the SV, and decrements the reference count of | |
8129 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
8130 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
8131 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
8132 | (otherwise the decrementing is conditional on the reference count being | |
8133 | different from one or the reference being a readonly SV). | |
7889fe52 | 8134 | See C<SvROK_off>. |
954c1994 GS |
8135 | |
8136 | =cut | |
8137 | */ | |
8138 | ||
ed6116ce | 8139 | void |
840a7b70 | 8140 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 8141 | { |
e4a519ba | 8142 | SV const * rv = SvRV(sv); |
810b8aa5 GS |
8143 | |
8144 | if (SvWEAKREF(sv)) { | |
8145 | sv_del_backref(sv); | |
8146 | SvWEAKREF_off(sv); | |
a8dc4fe8 | 8147 | SvRV_set(sv, NULL); |
810b8aa5 GS |
8148 | return; |
8149 | } | |
a8dc4fe8 | 8150 | SvRV_set(sv, NULL); |
ed6116ce | 8151 | SvROK_off(sv); |
5e8f8cda JH |
8152 | /* You can't have a || SvREADONLY(rv) here, as $a = $$a, where $a was |
8153 | assigned to as BEGIN {$a = \"Foo"} will fail. */ | |
8154 | if (SvREFCNT(rv) != 1 || (flags & SV_IMMEDIATE_UNREF)) | |
4633a7c4 | 8155 | SvREFCNT_dec(rv); |
840a7b70 | 8156 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 8157 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 8158 | } |
8990e307 | 8159 | |
840a7b70 IZ |
8160 | /* |
8161 | =for apidoc sv_unref | |
8162 | ||
8163 | Unsets the RV status of the SV, and decrements the reference count of | |
8164 | whatever was being referenced by the RV. This can almost be thought of | |
8165 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 8166 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
8167 | |
8168 | =cut | |
8169 | */ | |
8170 | ||
8171 | void | |
8172 | Perl_sv_unref(pTHX_ SV *sv) | |
8173 | { | |
8174 | sv_unref_flags(sv, 0); | |
8175 | } | |
8176 | ||
645c22ef DM |
8177 | /* |
8178 | =for apidoc sv_taint | |
8179 | ||
8180 | Taint an SV. Use C<SvTAINTED_on> instead. | |
8181 | =cut | |
8182 | */ | |
8183 | ||
bbce6d69 | 8184 | void |
864dbfa3 | 8185 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 8186 | { |
14befaf4 | 8187 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 8188 | } |
8189 | ||
645c22ef DM |
8190 | /* |
8191 | =for apidoc sv_untaint | |
8192 | ||
8193 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
8194 | =cut | |
8195 | */ | |
8196 | ||
bbce6d69 | 8197 | void |
864dbfa3 | 8198 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 8199 | { |
13f57bf8 | 8200 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
e4a519ba | 8201 | MAGIC * const mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 8202 | if (mg) |
565764a8 | 8203 | mg->mg_len &= ~1; |
36477c24 | 8204 | } |
bbce6d69 | 8205 | } |
8206 | ||
645c22ef DM |
8207 | /* |
8208 | =for apidoc sv_tainted | |
8209 | ||
8210 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
8211 | =cut | |
8212 | */ | |
8213 | ||
bbce6d69 | 8214 | bool |
864dbfa3 | 8215 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 8216 | { |
13f57bf8 | 8217 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
e4057cfc | 8218 | MAGIC * const mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 8219 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 8220 | return TRUE; |
8221 | } | |
8222 | return FALSE; | |
bbce6d69 | 8223 | } |
8224 | ||
d34f9d2e JH |
8225 | /* |
8226 | =for apidoc sv_setpviv | |
8227 | ||
8228 | Copies an integer into the given SV, also updating its string value. | |
8229 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
8230 | ||
8231 | =cut | |
8232 | */ | |
8233 | ||
8234 | void | |
8235 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) | |
8236 | { | |
8237 | char buf[TYPE_CHARS(UV)]; | |
8238 | char *ebuf; | |
e4a519ba | 8239 | char * const ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); |
d34f9d2e JH |
8240 | |
8241 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8242 | } | |
8243 | ||
8244 | /* | |
8245 | =for apidoc sv_setpviv_mg | |
8246 | ||
8247 | Like C<sv_setpviv>, but also handles 'set' magic. | |
8248 | ||
8249 | =cut | |
8250 | */ | |
8251 | ||
8252 | void | |
8253 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) | |
8254 | { | |
8255 | char buf[TYPE_CHARS(UV)]; | |
8256 | char *ebuf; | |
e4a519ba | 8257 | char * const ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); |
d34f9d2e JH |
8258 | |
8259 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8260 | SvSETMAGIC(sv); | |
8261 | } | |
8262 | ||
cea2e8a9 | 8263 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8264 | |
8265 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8266 | * version of the main function, (which may itself be aliased to us). | |
8267 | * Don't access this version directly. | |
8268 | */ | |
8269 | ||
cea2e8a9 GS |
8270 | void |
8271 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
8272 | { | |
8273 | dTHX; | |
8274 | va_list args; | |
8275 | va_start(args, pat); | |
c5be433b | 8276 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
8277 | va_end(args); |
8278 | } | |
8279 | ||
645c22ef DM |
8280 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8281 | * version of the main function, (which may itself be aliased to us). | |
8282 | * Don't access this version directly. | |
8283 | */ | |
cea2e8a9 GS |
8284 | |
8285 | void | |
8286 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8287 | { | |
8288 | dTHX; | |
8289 | va_list args; | |
8290 | va_start(args, pat); | |
c5be433b | 8291 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 8292 | va_end(args); |
cea2e8a9 GS |
8293 | } |
8294 | #endif | |
8295 | ||
954c1994 GS |
8296 | /* |
8297 | =for apidoc sv_setpvf | |
8298 | ||
c4a661a8 NC |
8299 | Works like C<sv_catpvf> but copies the text into the SV instead of |
8300 | appending it. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
954c1994 GS |
8301 | |
8302 | =cut | |
8303 | */ | |
8304 | ||
46fc3d4c | 8305 | void |
864dbfa3 | 8306 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8307 | { |
8308 | va_list args; | |
46fc3d4c | 8309 | va_start(args, pat); |
c5be433b | 8310 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 8311 | va_end(args); |
8312 | } | |
8313 | ||
c4a661a8 NC |
8314 | /* |
8315 | =for apidoc sv_vsetpvf | |
8316 | ||
8317 | Works like C<sv_vcatpvf> but copies the text into the SV instead of | |
8318 | appending it. Does not handle 'set' magic. See C<sv_vsetpvf_mg>. | |
8319 | ||
8320 | Usually used via its frontend C<sv_setpvf>. | |
8321 | ||
8322 | =cut | |
8323 | */ | |
645c22ef | 8324 | |
c5be433b GS |
8325 | void |
8326 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
8327 | { | |
8328 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8329 | } | |
ef50df4b | 8330 | |
954c1994 GS |
8331 | /* |
8332 | =for apidoc sv_setpvf_mg | |
8333 | ||
8334 | Like C<sv_setpvf>, but also handles 'set' magic. | |
8335 | ||
8336 | =cut | |
8337 | */ | |
8338 | ||
ef50df4b | 8339 | void |
864dbfa3 | 8340 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8341 | { |
8342 | va_list args; | |
ef50df4b | 8343 | va_start(args, pat); |
c5be433b | 8344 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 8345 | va_end(args); |
c5be433b GS |
8346 | } |
8347 | ||
c4a661a8 NC |
8348 | /* |
8349 | =for apidoc sv_vsetpvf_mg | |
8350 | ||
8351 | Like C<sv_vsetpvf>, but also handles 'set' magic. | |
8352 | ||
8353 | Usually used via its frontend C<sv_setpvf_mg>. | |
8354 | ||
8355 | =cut | |
8356 | */ | |
645c22ef | 8357 | |
c5be433b GS |
8358 | void |
8359 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8360 | { | |
8361 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8362 | SvSETMAGIC(sv); |
8363 | } | |
8364 | ||
cea2e8a9 | 8365 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8366 | |
8367 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8368 | * version of the main function, (which may itself be aliased to us). | |
8369 | * Don't access this version directly. | |
8370 | */ | |
8371 | ||
cea2e8a9 GS |
8372 | void |
8373 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
8374 | { | |
8375 | dTHX; | |
8376 | va_list args; | |
8377 | va_start(args, pat); | |
c5be433b | 8378 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
8379 | va_end(args); |
8380 | } | |
8381 | ||
645c22ef DM |
8382 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8383 | * version of the main function, (which may itself be aliased to us). | |
8384 | * Don't access this version directly. | |
8385 | */ | |
8386 | ||
cea2e8a9 GS |
8387 | void |
8388 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8389 | { | |
8390 | dTHX; | |
8391 | va_list args; | |
8392 | va_start(args, pat); | |
c5be433b | 8393 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 8394 | va_end(args); |
cea2e8a9 GS |
8395 | } |
8396 | #endif | |
8397 | ||
954c1994 GS |
8398 | /* |
8399 | =for apidoc sv_catpvf | |
8400 | ||
d5ce4a7c GA |
8401 | Processes its arguments like C<sprintf> and appends the formatted |
8402 | output to an SV. If the appended data contains "wide" characters | |
8403 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
8404 | and characters >255 formatted with %c), the original SV might get | |
c4a661a8 | 8405 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. See |
a8e989f8 RB |
8406 | C<sv_catpvf_mg>. If the original SV was UTF-8, the pattern should be |
8407 | valid UTF-8; if the original SV was bytes, the pattern should be too. | |
954c1994 | 8408 | |
d5ce4a7c | 8409 | =cut */ |
954c1994 | 8410 | |
46fc3d4c | 8411 | void |
864dbfa3 | 8412 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8413 | { |
8414 | va_list args; | |
46fc3d4c | 8415 | va_start(args, pat); |
c5be433b | 8416 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 8417 | va_end(args); |
8418 | } | |
8419 | ||
c4a661a8 NC |
8420 | /* |
8421 | =for apidoc sv_vcatpvf | |
8422 | ||
8423 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8424 | to an SV. Does not handle 'set' magic. See C<sv_vcatpvf_mg>. | |
8425 | ||
8426 | Usually used via its frontend C<sv_catpvf>. | |
8427 | ||
8428 | =cut | |
8429 | */ | |
645c22ef | 8430 | |
ef50df4b | 8431 | void |
c5be433b GS |
8432 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
8433 | { | |
8434 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8435 | } | |
8436 | ||
954c1994 GS |
8437 | /* |
8438 | =for apidoc sv_catpvf_mg | |
8439 | ||
8440 | Like C<sv_catpvf>, but also handles 'set' magic. | |
8441 | ||
8442 | =cut | |
8443 | */ | |
8444 | ||
c5be433b | 8445 | void |
864dbfa3 | 8446 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8447 | { |
8448 | va_list args; | |
ef50df4b | 8449 | va_start(args, pat); |
c5be433b | 8450 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 8451 | va_end(args); |
c5be433b GS |
8452 | } |
8453 | ||
c4a661a8 NC |
8454 | /* |
8455 | =for apidoc sv_vcatpvf_mg | |
8456 | ||
8457 | Like C<sv_vcatpvf>, but also handles 'set' magic. | |
8458 | ||
8459 | Usually used via its frontend C<sv_catpvf_mg>. | |
8460 | ||
8461 | =cut | |
8462 | */ | |
645c22ef | 8463 | |
c5be433b GS |
8464 | void |
8465 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8466 | { | |
8467 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8468 | SvSETMAGIC(sv); |
8469 | } | |
8470 | ||
954c1994 GS |
8471 | /* |
8472 | =for apidoc sv_vsetpvfn | |
8473 | ||
c4a661a8 | 8474 | Works like C<sv_vcatpvfn> but copies the text into the SV instead of |
954c1994 GS |
8475 | appending it. |
8476 | ||
c4a661a8 | 8477 | Usually used via one of its frontends C<sv_vsetpvf> and C<sv_vsetpvf_mg>. |
645c22ef | 8478 | |
954c1994 GS |
8479 | =cut |
8480 | */ | |
8481 | ||
46fc3d4c | 8482 | void |
7d5ea4e7 | 8483 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8484 | { |
8485 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 8486 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 8487 | } |
8488 | ||
645c22ef DM |
8489 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
8490 | ||
2d00ba3b | 8491 | STATIC I32 |
9dd79c3f | 8492 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
8493 | { |
8494 | I32 var = 0; | |
8495 | switch (**pattern) { | |
8496 | case '1': case '2': case '3': | |
8497 | case '4': case '5': case '6': | |
8498 | case '7': case '8': case '9': | |
8499 | while (isDIGIT(**pattern)) | |
8500 | var = var * 10 + (*(*pattern)++ - '0'); | |
8501 | } | |
8502 | return var; | |
8503 | } | |
9dd79c3f | 8504 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 8505 | |
48703b5e NC |
8506 | static char * |
8507 | F0convert(NV nv, char *endbuf, STRLEN *len) | |
8508 | { | |
8c18bf38 | 8509 | const int neg = nv < 0; |
48703b5e | 8510 | UV uv; |
48703b5e NC |
8511 | |
8512 | if (neg) | |
8513 | nv = -nv; | |
8514 | if (nv < UV_MAX) { | |
481da01c | 8515 | char *p = endbuf; |
48703b5e | 8516 | nv += 0.5; |
1ed1e641 | 8517 | uv = (UV)nv; |
48703b5e NC |
8518 | if (uv & 1 && uv == nv) |
8519 | uv--; /* Round to even */ | |
8520 | do { | |
8c18bf38 | 8521 | const unsigned dig = uv % 10; |
48703b5e NC |
8522 | *--p = '0' + dig; |
8523 | } while (uv /= 10); | |
8524 | if (neg) | |
8525 | *--p = '-'; | |
8526 | *len = endbuf - p; | |
8527 | return p; | |
8528 | } | |
8529 | return Nullch; | |
8530 | } | |
8531 | ||
8532 | ||
954c1994 GS |
8533 | /* |
8534 | =for apidoc sv_vcatpvfn | |
8535 | ||
8536 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8537 | to an SV. Uses an array of SVs if the C style variable argument list is | |
8538 | missing (NULL). When running with taint checks enabled, indicates via | |
8539 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
8540 | locales). | |
8541 | ||
e2b56717 AL |
8542 | XXX Except that it maybe_tainted is never assigned to. |
8543 | ||
c4a661a8 | 8544 | Usually used via one of its frontends C<sv_vcatpvf> and C<sv_vcatpvf_mg>. |
645c22ef | 8545 | |
954c1994 GS |
8546 | =cut |
8547 | */ | |
8548 | ||
0698efa8 NC |
8549 | /* XXX maybe_tainted is never assigned to, so the doc above is lying. */ |
8550 | ||
46fc3d4c | 8551 | void |
7d5ea4e7 | 8552 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8553 | { |
8554 | char *p; | |
8555 | char *q; | |
8c18bf38 | 8556 | const char *patend; |
fc36a67e | 8557 | STRLEN origlen; |
46fc3d4c | 8558 | I32 svix = 0; |
c635e13b | 8559 | static char nullstr[] = "(null)"; |
9c5ffd7c | 8560 | SV *argsv = Nullsv; |
481da01c AL |
8561 | bool has_utf8 = DO_UTF8(sv); /* has the result utf8? */ |
8562 | const bool pat_utf8 = has_utf8; /* the pattern is in utf8? */ | |
5835a535 | 8563 | SV *nsv = Nullsv; |
48703b5e NC |
8564 | /* Times 4: a decimal digit takes more than 3 binary digits. |
8565 | * NV_DIG: mantissa takes than many decimal digits. | |
8566 | * Plus 32: Playing safe. */ | |
8567 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
8568 | /* large enough for "%#.#f" --chip */ | |
8569 | /* what about long double NVs? --jhi */ | |
5835a535 | 8570 | |
0188be2e AL |
8571 | PERL_UNUSED_ARG(maybe_tainted); |
8572 | ||
46fc3d4c | 8573 | /* no matter what, this is a string now */ |
fc36a67e | 8574 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 8575 | |
fc36a67e | 8576 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 8577 | if (patlen == 0) |
8578 | return; | |
fc36a67e | 8579 | if (patlen == 2 && pat[0] == '%') { |
8580 | switch (pat[1]) { | |
8581 | case 's': | |
c635e13b | 8582 | if (args) { |
0188be2e | 8583 | const char * const s = va_arg(*args, char*); |
c635e13b | 8584 | sv_catpv(sv, s ? s : nullstr); |
8585 | } | |
7e2040f0 | 8586 | else if (svix < svmax) { |
fc36a67e | 8587 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
8588 | if (DO_UTF8(*svargs)) |
8589 | SvUTF8_on(sv); | |
8590 | } | |
fc36a67e | 8591 | return; |
8592 | case '_': | |
8593 | if (args) { | |
7e2040f0 GS |
8594 | argsv = va_arg(*args, SV*); |
8595 | sv_catsv(sv, argsv); | |
8596 | if (DO_UTF8(argsv)) | |
8597 | SvUTF8_on(sv); | |
fc36a67e | 8598 | return; |
8599 | } | |
8600 | /* See comment on '_' below */ | |
8601 | break; | |
8602 | } | |
46fc3d4c | 8603 | } |
8604 | ||
1621ce87 | 8605 | #ifndef USE_LONG_DOUBLE |
48703b5e | 8606 | /* special-case "%.<number>[gf]" */ |
1e27baec | 8607 | if ( !args && patlen <= 5 && pat[0] == '%' && pat[1] == '.' |
48703b5e NC |
8608 | && (pat[patlen-1] == 'g' || pat[patlen-1] == 'f') ) { |
8609 | unsigned digits = 0; | |
8610 | const char *pp; | |
8611 | ||
8612 | pp = pat + 2; | |
8613 | while (*pp >= '0' && *pp <= '9') | |
8614 | digits = 10 * digits + (*pp++ - '0'); | |
1ed1e641 | 8615 | if (pp - pat == (int)patlen - 1) { |
48703b5e NC |
8616 | NV nv; |
8617 | ||
1e27baec | 8618 | if (svix < svmax) |
48703b5e NC |
8619 | nv = SvNV(*svargs); |
8620 | else | |
8621 | return; | |
8622 | if (*pp == 'g') { | |
5f658b8d NC |
8623 | /* Add check for digits != 0 because it seems that some |
8624 | gconverts are buggy in this case, and we don't yet have | |
8625 | a Configure test for this. */ | |
8626 | if (digits && digits < sizeof(ebuf) - NV_DIG - 10) { | |
8627 | /* 0, point, slack */ | |
1621ce87 | 8628 | Gconvert(nv, (int)digits, 0, ebuf); |
48703b5e NC |
8629 | sv_catpv(sv, ebuf); |
8630 | if (*ebuf) /* May return an empty string for digits==0 */ | |
8631 | return; | |
8632 | } | |
8633 | } else if (!digits) { | |
8634 | STRLEN l; | |
8635 | ||
8636 | if ((p = F0convert(nv, ebuf + sizeof ebuf, &l))) { | |
8637 | sv_catpvn(sv, p, l); | |
8638 | return; | |
8639 | } | |
8640 | } | |
8641 | } | |
8642 | } | |
1621ce87 | 8643 | #endif /* !USE_LONG_DOUBLE */ |
48703b5e | 8644 | |
2cf2cfc6 | 8645 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
5b7ea690 | 8646 | has_utf8 = TRUE; |
2cf2cfc6 | 8647 | |
46fc3d4c | 8648 | patend = (char*)pat + patlen; |
8649 | for (p = (char*)pat; p < patend; p = q) { | |
8650 | bool alt = FALSE; | |
8651 | bool left = FALSE; | |
b22c7a20 | 8652 | bool vectorize = FALSE; |
211dfcf1 | 8653 | bool vectorarg = FALSE; |
2cf2cfc6 | 8654 | bool vec_utf8 = FALSE; |
46fc3d4c | 8655 | char fill = ' '; |
8656 | char plus = 0; | |
8657 | char intsize = 0; | |
8658 | STRLEN width = 0; | |
fc36a67e | 8659 | STRLEN zeros = 0; |
46fc3d4c | 8660 | bool has_precis = FALSE; |
8661 | STRLEN precis = 0; | |
d34f9d2e | 8662 | I32 osvix = svix; |
2cf2cfc6 | 8663 | bool is_utf8 = FALSE; /* is this item utf8? */ |
5b7ea690 JH |
8664 | #ifdef HAS_LDBL_SPRINTF_BUG |
8665 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
8666 | with sfio - Allen <allens@cpan.org> */ | |
8667 | bool fix_ldbl_sprintf_bug = FALSE; | |
8668 | #endif | |
8669 | ||
46fc3d4c | 8670 | char esignbuf[4]; |
a2a469f9 | 8671 | U8 utf8buf[UTF8_MAXBYTES+1]; |
46fc3d4c | 8672 | STRLEN esignlen = 0; |
8673 | ||
287c580e | 8674 | const char *eptr = Nullch; |
fc36a67e | 8675 | STRLEN elen = 0; |
81f715da | 8676 | SV *vecsv = Nullsv; |
c06c673c | 8677 | const U8 *vecstr = Null(U8*); |
b22c7a20 | 8678 | STRLEN veclen = 0; |
934abaf1 | 8679 | char c = 0; |
46fc3d4c | 8680 | int i; |
9c5ffd7c | 8681 | unsigned base = 0; |
8c8eb53c RB |
8682 | IV iv = 0; |
8683 | UV uv = 0; | |
9e5b023a JH |
8684 | /* we need a long double target in case HAS_LONG_DOUBLE but |
8685 | not USE_LONG_DOUBLE | |
8686 | */ | |
35fff930 | 8687 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
8688 | long double nv; |
8689 | #else | |
65202027 | 8690 | NV nv; |
9e5b023a | 8691 | #endif |
46fc3d4c | 8692 | STRLEN have; |
8693 | STRLEN need; | |
8694 | STRLEN gap; | |
1e27baec | 8695 | const char *dotstr = "."; |
b22c7a20 | 8696 | STRLEN dotstrlen = 1; |
211dfcf1 | 8697 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 8698 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
8699 | I32 epix = 0; /* explicit precision index */ |
8700 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 8701 | bool asterisk = FALSE; |
46fc3d4c | 8702 | |
211dfcf1 | 8703 | /* echo everything up to the next format specification */ |
46fc3d4c | 8704 | for (q = p; q < patend && *q != '%'; ++q) ; |
8705 | if (q > p) { | |
5835a535 JH |
8706 | if (has_utf8 && !pat_utf8) |
8707 | sv_catpvn_utf8_upgrade(sv, p, q - p, nsv); | |
8708 | else | |
8709 | sv_catpvn(sv, p, q - p); | |
46fc3d4c | 8710 | p = q; |
8711 | } | |
8712 | if (q++ >= patend) | |
8713 | break; | |
8714 | ||
211dfcf1 HS |
8715 | /* |
8716 | We allow format specification elements in this order: | |
8717 | \d+\$ explicit format parameter index | |
8718 | [-+ 0#]+ flags | |
a472f209 | 8719 | v|\*(\d+\$)?v vector with optional (optionally specified) arg |
f8cf5370 | 8720 | 0 flag (as above): repeated to allow "v02" |
211dfcf1 HS |
8721 | \d+|\*(\d+\$)? width using optional (optionally specified) arg |
8722 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
8723 | [hlqLV] size | |
8724 | [%bcdefginopsux_DFOUX] format (mandatory) | |
8725 | */ | |
8726 | if (EXPECT_NUMBER(q, width)) { | |
8727 | if (*q == '$') { | |
8728 | ++q; | |
8729 | efix = width; | |
8730 | } else { | |
8731 | goto gotwidth; | |
8732 | } | |
8733 | } | |
8734 | ||
fc36a67e | 8735 | /* FLAGS */ |
8736 | ||
46fc3d4c | 8737 | while (*q) { |
8738 | switch (*q) { | |
8739 | case ' ': | |
8740 | case '+': | |
8741 | plus = *q++; | |
8742 | continue; | |
8743 | ||
8744 | case '-': | |
8745 | left = TRUE; | |
8746 | q++; | |
8747 | continue; | |
8748 | ||
8749 | case '0': | |
8750 | fill = *q++; | |
8751 | continue; | |
8752 | ||
8753 | case '#': | |
8754 | alt = TRUE; | |
8755 | q++; | |
8756 | continue; | |
8757 | ||
fc36a67e | 8758 | default: |
8759 | break; | |
8760 | } | |
8761 | break; | |
8762 | } | |
46fc3d4c | 8763 | |
211dfcf1 | 8764 | tryasterisk: |
eb3fce90 | 8765 | if (*q == '*') { |
211dfcf1 HS |
8766 | q++; |
8767 | if (EXPECT_NUMBER(q, ewix)) | |
8768 | if (*q++ != '$') | |
8769 | goto unknown; | |
eb3fce90 | 8770 | asterisk = TRUE; |
211dfcf1 HS |
8771 | } |
8772 | if (*q == 'v') { | |
eb3fce90 | 8773 | q++; |
211dfcf1 HS |
8774 | if (vectorize) |
8775 | goto unknown; | |
9cbac4c7 | 8776 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
8777 | evix = ewix; |
8778 | ewix = 0; | |
8779 | asterisk = FALSE; | |
8780 | } | |
8781 | vectorize = TRUE; | |
8782 | goto tryasterisk; | |
eb3fce90 JH |
8783 | } |
8784 | ||
211dfcf1 | 8785 | if (!asterisk) |
f8cf5370 JH |
8786 | if( *q == '0' ) |
8787 | fill = *q++; | |
211dfcf1 HS |
8788 | EXPECT_NUMBER(q, width); |
8789 | ||
9a2a392e RB |
8790 | #ifdef CHECK_FORMAT |
8791 | if ((*q == 'p') && left) { | |
8792 | vectorize = (width == 1); | |
8793 | } | |
8794 | #endif | |
211dfcf1 HS |
8795 | if (vectorize) { |
8796 | if (vectorarg) { | |
8797 | if (args) | |
8798 | vecsv = va_arg(*args, SV*); | |
8799 | else | |
8800 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
219ef941 | 8801 | svargs[evix ? evix-1 : svix++] : &PL_sv_undef; |
c06c673c | 8802 | dotstr = SvPV_const(vecsv, dotstrlen); |
211dfcf1 | 8803 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 8804 | is_utf8 = TRUE; |
211dfcf1 HS |
8805 | } |
8806 | if (args) { | |
8807 | vecsv = va_arg(*args, SV*); | |
c06c673c | 8808 | vecstr = (U8*)SvPV_const(vecsv,veclen); |
2cf2cfc6 | 8809 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 8810 | } |
211dfcf1 HS |
8811 | else if (efix ? efix <= svmax : svix < svmax) { |
8812 | vecsv = svargs[efix ? efix-1 : svix++]; | |
c06c673c | 8813 | vecstr = (U8*)SvPV_const(vecsv,veclen); |
2cf2cfc6 | 8814 | vec_utf8 = DO_UTF8(vecsv); |
211dfcf1 HS |
8815 | } |
8816 | else { | |
8817 | vecstr = (U8*)""; | |
8818 | veclen = 0; | |
8819 | } | |
eb3fce90 | 8820 | } |
fc36a67e | 8821 | |
eb3fce90 | 8822 | if (asterisk) { |
fc36a67e | 8823 | if (args) |
8824 | i = va_arg(*args, int); | |
8825 | else | |
eb3fce90 JH |
8826 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
8827 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8828 | left |= (i < 0); |
8829 | width = (i < 0) ? -i : i; | |
fc36a67e | 8830 | } |
211dfcf1 | 8831 | gotwidth: |
fc36a67e | 8832 | |
8833 | /* PRECISION */ | |
46fc3d4c | 8834 | |
fc36a67e | 8835 | if (*q == '.') { |
8836 | q++; | |
8837 | if (*q == '*') { | |
211dfcf1 | 8838 | q++; |
7b8dd722 HS |
8839 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') |
8840 | goto unknown; | |
8841 | /* XXX: todo, support specified precision parameter */ | |
8842 | if (epix) | |
211dfcf1 | 8843 | goto unknown; |
46fc3d4c | 8844 | if (args) |
8845 | i = va_arg(*args, int); | |
8846 | else | |
eb3fce90 JH |
8847 | i = (ewix ? ewix <= svmax : svix < svmax) |
8848 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8849 | precis = (i < 0) ? 0 : i; |
fc36a67e | 8850 | } |
8851 | else { | |
8852 | precis = 0; | |
8853 | while (isDIGIT(*q)) | |
8854 | precis = precis * 10 + (*q++ - '0'); | |
8855 | } | |
8856 | has_precis = TRUE; | |
8857 | } | |
46fc3d4c | 8858 | |
fc36a67e | 8859 | /* SIZE */ |
46fc3d4c | 8860 | |
fc36a67e | 8861 | switch (*q) { |
c623ac67 GS |
8862 | #ifdef WIN32 |
8863 | case 'I': /* Ix, I32x, and I64x */ | |
8864 | # ifdef WIN64 | |
8865 | if (q[1] == '6' && q[2] == '4') { | |
8866 | q += 3; | |
8867 | intsize = 'q'; | |
8868 | break; | |
8869 | } | |
8870 | # endif | |
8871 | if (q[1] == '3' && q[2] == '2') { | |
8872 | q += 3; | |
8873 | break; | |
8874 | } | |
8875 | # ifdef WIN64 | |
8876 | intsize = 'q'; | |
8877 | # endif | |
8878 | q++; | |
8879 | break; | |
8880 | #endif | |
9e5b023a | 8881 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 8882 | case 'L': /* Ld */ |
e5c81feb | 8883 | /* FALL THROUGH */ |
e5c81feb | 8884 | #ifdef HAS_QUAD |
6f9bb7fd | 8885 | case 'q': /* qd */ |
9e5b023a | 8886 | #endif |
6f9bb7fd GS |
8887 | intsize = 'q'; |
8888 | q++; | |
8889 | break; | |
8890 | #endif | |
fc36a67e | 8891 | case 'l': |
9e5b023a | 8892 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
5b7ea690 | 8893 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 8894 | intsize = 'q'; |
8895 | q += 2; | |
46fc3d4c | 8896 | break; |
cf2093f6 | 8897 | } |
fc36a67e | 8898 | #endif |
6f9bb7fd | 8899 | /* FALL THROUGH */ |
fc36a67e | 8900 | case 'h': |
cf2093f6 | 8901 | /* FALL THROUGH */ |
fc36a67e | 8902 | case 'V': |
8903 | intsize = *q++; | |
46fc3d4c | 8904 | break; |
8905 | } | |
8906 | ||
fc36a67e | 8907 | /* CONVERSION */ |
8908 | ||
211dfcf1 HS |
8909 | if (*q == '%') { |
8910 | eptr = q++; | |
8911 | elen = 1; | |
8912 | goto string; | |
8913 | } | |
8914 | ||
be75b157 HS |
8915 | if (vectorize) |
8916 | argsv = vecsv; | |
8917 | else if (!args) | |
211dfcf1 HS |
8918 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
8919 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
8920 | ||
46fc3d4c | 8921 | switch (c = *q++) { |
8922 | ||
8923 | /* STRINGS */ | |
8924 | ||
46fc3d4c | 8925 | case 'c': |
be75b157 | 8926 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
8927 | if ((uv > 255 || |
8928 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 8929 | && !IN_BYTES) { |
dfe13c55 | 8930 | eptr = (char*)utf8buf; |
9041c2e3 | 8931 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 8932 | is_utf8 = TRUE; |
7e2040f0 GS |
8933 | } |
8934 | else { | |
8935 | c = (char)uv; | |
8936 | eptr = &c; | |
8937 | elen = 1; | |
a0ed51b3 | 8938 | } |
46fc3d4c | 8939 | goto string; |
8940 | ||
46fc3d4c | 8941 | case 's': |
be75b157 | 8942 | if (args && !vectorize) { |
fc36a67e | 8943 | eptr = va_arg(*args, char*); |
c635e13b | 8944 | if (eptr) |
1d7c1841 GS |
8945 | #ifdef MACOS_TRADITIONAL |
8946 | /* On MacOS, %#s format is used for Pascal strings */ | |
8947 | if (alt) | |
8948 | elen = *eptr++; | |
8949 | else | |
8950 | #endif | |
c635e13b | 8951 | elen = strlen(eptr); |
8952 | else { | |
8953 | eptr = nullstr; | |
8954 | elen = sizeof nullstr - 1; | |
8955 | } | |
46fc3d4c | 8956 | } |
211dfcf1 | 8957 | else { |
287c580e | 8958 | eptr = SvPVx_const(argsv, elen); |
7e2040f0 | 8959 | if (DO_UTF8(argsv)) { |
a0ed51b3 LW |
8960 | if (has_precis && precis < elen) { |
8961 | I32 p = precis; | |
7e2040f0 | 8962 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
8963 | precis = p; |
8964 | } | |
8965 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 8966 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 8967 | } |
2cf2cfc6 | 8968 | is_utf8 = TRUE; |
a0ed51b3 LW |
8969 | } |
8970 | } | |
46fc3d4c | 8971 | goto string; |
8972 | ||
fc36a67e | 8973 | case '_': |
9982c483 RB |
8974 | #ifdef CHECK_FORMAT |
8975 | format_sv: | |
8976 | #endif | |
fc36a67e | 8977 | /* |
8978 | * The "%_" hack might have to be changed someday, | |
8979 | * if ISO or ANSI decide to use '_' for something. | |
8980 | * So we keep it hidden from users' code. | |
8981 | */ | |
be75b157 | 8982 | if (!args || vectorize) |
fc36a67e | 8983 | goto unknown; |
211dfcf1 | 8984 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
8985 | eptr = SvPVx(argsv, elen); |
8986 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 8987 | is_utf8 = TRUE; |
fc36a67e | 8988 | |
46fc3d4c | 8989 | string: |
b22c7a20 | 8990 | vectorize = FALSE; |
46fc3d4c | 8991 | if (has_precis && elen > precis) |
8992 | elen = precis; | |
8993 | break; | |
8994 | ||
8995 | /* INTEGERS */ | |
8996 | ||
fc36a67e | 8997 | case 'p': |
9982c483 RB |
8998 | #ifdef CHECK_FORMAT |
8999 | if (left) { | |
9000 | left = FALSE; | |
9001 | if (!width) | |
9002 | goto format_sv; /* %-p -> %_ */ | |
9a2a392e RB |
9003 | if (vectorize) { |
9004 | width = 0; | |
9005 | goto format_vd; /* %-1p -> %vd */ | |
9006 | } | |
9982c483 RB |
9007 | precis = width; |
9008 | has_precis = TRUE; | |
9009 | width = 0; | |
9010 | goto format_sv; /* %-Np -> %.N_ */ | |
9011 | } | |
9012 | #endif | |
be75b157 | 9013 | if (alt || vectorize) |
c2e66d9e | 9014 | goto unknown; |
211dfcf1 | 9015 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 9016 | base = 16; |
9017 | goto integer; | |
9018 | ||
46fc3d4c | 9019 | case 'D': |
29fe7a80 | 9020 | #ifdef IV_IS_QUAD |
22f3ae8c | 9021 | intsize = 'q'; |
29fe7a80 | 9022 | #else |
46fc3d4c | 9023 | intsize = 'l'; |
29fe7a80 | 9024 | #endif |
46fc3d4c | 9025 | /* FALL THROUGH */ |
9026 | case 'd': | |
9027 | case 'i': | |
9a2a392e RB |
9028 | #ifdef CHECK_FORMAT |
9029 | format_vd: | |
9030 | #endif | |
b22c7a20 | 9031 | if (vectorize) { |
ba210ebe | 9032 | STRLEN ulen; |
211dfcf1 HS |
9033 | if (!veclen) |
9034 | continue; | |
2cf2cfc6 A |
9035 | if (vec_utf8) |
9036 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
9037 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 9038 | else { |
e83d50c9 | 9039 | uv = *vecstr; |
b22c7a20 GS |
9040 | ulen = 1; |
9041 | } | |
9042 | vecstr += ulen; | |
9043 | veclen -= ulen; | |
e83d50c9 JP |
9044 | if (plus) |
9045 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
9046 | } |
9047 | else if (args) { | |
46fc3d4c | 9048 | switch (intsize) { |
9049 | case 'h': iv = (short)va_arg(*args, int); break; | |
46fc3d4c | 9050 | case 'l': iv = va_arg(*args, long); break; |
fc36a67e | 9051 | case 'V': iv = va_arg(*args, IV); break; |
1ed1e641 | 9052 | default: iv = va_arg(*args, int); break; |
cf2093f6 JH |
9053 | #ifdef HAS_QUAD |
9054 | case 'q': iv = va_arg(*args, Quad_t); break; | |
9055 | #endif | |
46fc3d4c | 9056 | } |
9057 | } | |
9058 | else { | |
1ed1e641 | 9059 | IV tiv = SvIVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 9060 | switch (intsize) { |
1ed1e641 MHM |
9061 | case 'h': iv = (short)tiv; break; |
9062 | case 'l': iv = (long)tiv; break; | |
9063 | case 'V': | |
9064 | default: iv = tiv; break; | |
cf2093f6 | 9065 | #ifdef HAS_QUAD |
1ed1e641 | 9066 | case 'q': iv = (Quad_t)tiv; break; |
cf2093f6 | 9067 | #endif |
46fc3d4c | 9068 | } |
9069 | } | |
e83d50c9 JP |
9070 | if ( !vectorize ) /* we already set uv above */ |
9071 | { | |
9072 | if (iv >= 0) { | |
9073 | uv = iv; | |
9074 | if (plus) | |
9075 | esignbuf[esignlen++] = plus; | |
9076 | } | |
9077 | else { | |
9078 | uv = -iv; | |
9079 | esignbuf[esignlen++] = '-'; | |
9080 | } | |
46fc3d4c | 9081 | } |
9082 | base = 10; | |
9083 | goto integer; | |
9084 | ||
fc36a67e | 9085 | case 'U': |
29fe7a80 | 9086 | #ifdef IV_IS_QUAD |
22f3ae8c | 9087 | intsize = 'q'; |
29fe7a80 | 9088 | #else |
fc36a67e | 9089 | intsize = 'l'; |
29fe7a80 | 9090 | #endif |
fc36a67e | 9091 | /* FALL THROUGH */ |
9092 | case 'u': | |
9093 | base = 10; | |
9094 | goto uns_integer; | |
9095 | ||
4f19785b WSI |
9096 | case 'b': |
9097 | base = 2; | |
9098 | goto uns_integer; | |
9099 | ||
46fc3d4c | 9100 | case 'O': |
29fe7a80 | 9101 | #ifdef IV_IS_QUAD |
22f3ae8c | 9102 | intsize = 'q'; |
29fe7a80 | 9103 | #else |
46fc3d4c | 9104 | intsize = 'l'; |
29fe7a80 | 9105 | #endif |
46fc3d4c | 9106 | /* FALL THROUGH */ |
9107 | case 'o': | |
9108 | base = 8; | |
9109 | goto uns_integer; | |
9110 | ||
9111 | case 'X': | |
46fc3d4c | 9112 | case 'x': |
9113 | base = 16; | |
46fc3d4c | 9114 | |
9115 | uns_integer: | |
b22c7a20 | 9116 | if (vectorize) { |
ba210ebe | 9117 | STRLEN ulen; |
b22c7a20 | 9118 | vector: |
211dfcf1 HS |
9119 | if (!veclen) |
9120 | continue; | |
2cf2cfc6 A |
9121 | if (vec_utf8) |
9122 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
9123 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 9124 | else { |
a05b299f | 9125 | uv = *vecstr; |
b22c7a20 GS |
9126 | ulen = 1; |
9127 | } | |
9128 | vecstr += ulen; | |
9129 | veclen -= ulen; | |
9130 | } | |
9131 | else if (args) { | |
46fc3d4c | 9132 | switch (intsize) { |
9133 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
46fc3d4c | 9134 | case 'l': uv = va_arg(*args, unsigned long); break; |
fc36a67e | 9135 | case 'V': uv = va_arg(*args, UV); break; |
1ed1e641 | 9136 | default: uv = va_arg(*args, unsigned); break; |
cf2093f6 | 9137 | #ifdef HAS_QUAD |
1ed1e641 | 9138 | case 'q': uv = va_arg(*args, Uquad_t); break; |
cf2093f6 | 9139 | #endif |
46fc3d4c | 9140 | } |
9141 | } | |
9142 | else { | |
1ed1e641 | 9143 | UV tuv = SvUVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 9144 | switch (intsize) { |
1ed1e641 MHM |
9145 | case 'h': uv = (unsigned short)tuv; break; |
9146 | case 'l': uv = (unsigned long)tuv; break; | |
9147 | case 'V': | |
9148 | default: uv = tuv; break; | |
cf2093f6 | 9149 | #ifdef HAS_QUAD |
1ed1e641 | 9150 | case 'q': uv = (Uquad_t)tuv; break; |
cf2093f6 | 9151 | #endif |
46fc3d4c | 9152 | } |
9153 | } | |
9154 | ||
9155 | integer: | |
287c580e NC |
9156 | { |
9157 | char *ptr = ebuf + sizeof ebuf; | |
9158 | switch (base) { | |
9159 | unsigned dig; | |
9160 | case 16: | |
9161 | if (!uv) | |
9162 | alt = FALSE; | |
9163 | p = (char*)((c == 'X') | |
9164 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
9165 | do { | |
9166 | dig = uv & 15; | |
9167 | *--ptr = p[dig]; | |
9168 | } while (uv >>= 4); | |
9169 | if (alt) { | |
9170 | esignbuf[esignlen++] = '0'; | |
9171 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ | |
9172 | } | |
9173 | break; | |
9174 | case 8: | |
9175 | do { | |
9176 | dig = uv & 7; | |
9177 | *--ptr = '0' + dig; | |
9178 | } while (uv >>= 3); | |
9179 | if (alt && *ptr != '0') | |
9180 | *--ptr = '0'; | |
9181 | break; | |
9182 | case 2: | |
9183 | do { | |
9184 | dig = uv & 1; | |
9185 | *--ptr = '0' + dig; | |
9186 | } while (uv >>= 1); | |
9187 | if (alt) { | |
9188 | esignbuf[esignlen++] = '0'; | |
9189 | esignbuf[esignlen++] = 'b'; | |
9190 | } | |
9191 | break; | |
9192 | default: /* it had better be ten or less */ | |
6bc102ca | 9193 | #if defined(PERL_Y2KWARN) |
287c580e NC |
9194 | if (ckWARN(WARN_Y2K)) { |
9195 | STRLEN n; | |
9196 | const char *const s = SvPV_const(sv,n); | |
9197 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
9198 | && (n == 2 || !isDIGIT(s[n-3]))) | |
9199 | { | |
9200 | Perl_warner(aTHX_ packWARN(WARN_Y2K), | |
9201 | "Possible Y2K bug: %%%c %s", | |
9202 | c, "format string following '19'"); | |
9203 | } | |
6bc102ca | 9204 | } |
6bc102ca | 9205 | #endif |
287c580e NC |
9206 | do { |
9207 | dig = uv % base; | |
9208 | *--ptr = '0' + dig; | |
9209 | } while (uv /= base); | |
9210 | break; | |
9211 | } | |
9212 | elen = (ebuf + sizeof ebuf) - ptr; | |
9213 | eptr = ptr; | |
9214 | if (has_precis) { | |
9215 | if (precis > elen) | |
9216 | zeros = precis - elen; | |
9217 | else if (precis == 0 && elen == 1 && *ptr == '0') | |
9218 | elen = 0; | |
9219 | } | |
c10ed8b9 | 9220 | } |
46fc3d4c | 9221 | break; |
9222 | ||
9223 | /* FLOATING POINT */ | |
9224 | ||
fc36a67e | 9225 | case 'F': |
9226 | c = 'f'; /* maybe %F isn't supported here */ | |
9227 | /* FALL THROUGH */ | |
46fc3d4c | 9228 | case 'e': case 'E': |
fc36a67e | 9229 | case 'f': |
46fc3d4c | 9230 | case 'g': case 'G': |
9231 | ||
9232 | /* This is evil, but floating point is even more evil */ | |
9233 | ||
9e5b023a JH |
9234 | /* for SV-style calling, we can only get NV |
9235 | for C-style calling, we assume %f is double; | |
9236 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
9237 | */ | |
9238 | switch (intsize) { | |
9239 | case 'V': | |
9240 | #if defined(USE_LONG_DOUBLE) | |
9241 | intsize = 'q'; | |
9242 | #endif | |
9243 | break; | |
f8cf5370 JH |
9244 | /* [perl #20339] - we should accept and ignore %lf rather than die */ |
9245 | case 'l': | |
9246 | /* FALL THROUGH */ | |
9e5b023a JH |
9247 | default: |
9248 | #if defined(USE_LONG_DOUBLE) | |
9249 | intsize = args ? 0 : 'q'; | |
9250 | #endif | |
9251 | break; | |
9252 | case 'q': | |
9253 | #if defined(HAS_LONG_DOUBLE) | |
9254 | break; | |
9255 | #else | |
9256 | /* FALL THROUGH */ | |
9257 | #endif | |
9258 | case 'h': | |
9e5b023a JH |
9259 | goto unknown; |
9260 | } | |
9261 | ||
9262 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 9263 | nv = (args && !vectorize) ? |
35fff930 JH |
9264 | #if LONG_DOUBLESIZE > DOUBLESIZE |
9265 | intsize == 'q' ? | |
5b7ea690 JH |
9266 | va_arg(*args, long double) : |
9267 | va_arg(*args, double) | |
35fff930 | 9268 | #else |
5b7ea690 | 9269 | va_arg(*args, double) |
35fff930 | 9270 | #endif |
9e5b023a | 9271 | : SvNVx(argsv); |
fc36a67e | 9272 | |
9273 | need = 0; | |
be75b157 | 9274 | vectorize = FALSE; |
fc36a67e | 9275 | if (c != 'e' && c != 'E') { |
9276 | i = PERL_INT_MIN; | |
9e5b023a JH |
9277 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
9278 | will cast our (long double) to (double) */ | |
73b309ea | 9279 | (void)Perl_frexp(nv, &i); |
fc36a67e | 9280 | if (i == PERL_INT_MIN) |
cea2e8a9 | 9281 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 9282 | if (i > 0) |
fc36a67e | 9283 | need = BIT_DIGITS(i); |
9284 | } | |
9285 | need += has_precis ? precis : 6; /* known default */ | |
5b7ea690 | 9286 | |
fc36a67e | 9287 | if (need < width) |
9288 | need = width; | |
9289 | ||
5b7ea690 JH |
9290 | #ifdef HAS_LDBL_SPRINTF_BUG |
9291 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
9292 | with sfio - Allen <allens@cpan.org> */ | |
9293 | ||
9294 | # ifdef DBL_MAX | |
9295 | # define MY_DBL_MAX DBL_MAX | |
9296 | # else /* XXX guessing! HUGE_VAL may be defined as infinity, so not using */ | |
9297 | # if DOUBLESIZE >= 8 | |
9298 | # define MY_DBL_MAX 1.7976931348623157E+308L | |
9299 | # else | |
9300 | # define MY_DBL_MAX 3.40282347E+38L | |
9301 | # endif | |
9302 | # endif | |
9303 | ||
9304 | # ifdef HAS_LDBL_SPRINTF_BUG_LESS1 /* only between -1L & 1L - Allen */ | |
9305 | # define MY_DBL_MAX_BUG 1L | |
9306 | # else | |
9307 | # define MY_DBL_MAX_BUG MY_DBL_MAX | |
9308 | # endif | |
9309 | ||
9310 | # ifdef DBL_MIN | |
9311 | # define MY_DBL_MIN DBL_MIN | |
9312 | # else /* XXX guessing! -Allen */ | |
9313 | # if DOUBLESIZE >= 8 | |
9314 | # define MY_DBL_MIN 2.2250738585072014E-308L | |
9315 | # else | |
9316 | # define MY_DBL_MIN 1.17549435E-38L | |
9317 | # endif | |
9318 | # endif | |
9319 | ||
9320 | if ((intsize == 'q') && (c == 'f') && | |
9321 | ((nv < MY_DBL_MAX_BUG) && (nv > -MY_DBL_MAX_BUG)) && | |
9322 | (need < DBL_DIG)) { | |
9323 | /* it's going to be short enough that | |
9324 | * long double precision is not needed */ | |
9325 | ||
9326 | if ((nv <= 0L) && (nv >= -0L)) | |
9327 | fix_ldbl_sprintf_bug = TRUE; /* 0 is 0 - easiest */ | |
9328 | else { | |
9329 | /* would use Perl_fp_class as a double-check but not | |
9330 | * functional on IRIX - see perl.h comments */ | |
9331 | ||
9332 | if ((nv >= MY_DBL_MIN) || (nv <= -MY_DBL_MIN)) { | |
9333 | /* It's within the range that a double can represent */ | |
9334 | #if defined(DBL_MAX) && !defined(DBL_MIN) | |
9335 | if ((nv >= ((long double)1/DBL_MAX)) || | |
9336 | (nv <= (-(long double)1/DBL_MAX))) | |
9337 | #endif | |
9338 | fix_ldbl_sprintf_bug = TRUE; | |
9339 | } | |
9340 | } | |
9341 | if (fix_ldbl_sprintf_bug == TRUE) { | |
9342 | double temp; | |
9343 | ||
9344 | intsize = 0; | |
9345 | temp = (double)nv; | |
9346 | nv = (NV)temp; | |
9347 | } | |
9348 | } | |
9349 | ||
9350 | # undef MY_DBL_MAX | |
9351 | # undef MY_DBL_MAX_BUG | |
9352 | # undef MY_DBL_MIN | |
9353 | ||
9354 | #endif /* HAS_LDBL_SPRINTF_BUG */ | |
9355 | ||
46fc3d4c | 9356 | need += 20; /* fudge factor */ |
80252599 GS |
9357 | if (PL_efloatsize < need) { |
9358 | Safefree(PL_efloatbuf); | |
9359 | PL_efloatsize = need + 20; /* more fudge */ | |
cd7a8267 | 9360 | Newx(PL_efloatbuf, PL_efloatsize, char); |
7d5ea4e7 | 9361 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 9362 | } |
9363 | ||
48703b5e NC |
9364 | if ( !(width || left || plus || alt) && fill != '0' |
9365 | && has_precis && intsize != 'q' ) { /* Shortcuts */ | |
5f658b8d NC |
9366 | /* See earlier comment about buggy Gconvert when digits, |
9367 | aka precis is 0 */ | |
9368 | if ( c == 'g' && precis) { | |
1621ce87 | 9369 | Gconvert((NV)nv, (int)precis, 0, PL_efloatbuf); |
48703b5e NC |
9370 | if (*PL_efloatbuf) /* May return an empty string for digits==0 */ |
9371 | goto float_converted; | |
9372 | } else if ( c == 'f' && !precis) { | |
9373 | if ((eptr = F0convert(nv, ebuf + sizeof ebuf, &elen))) | |
9374 | break; | |
9375 | } | |
9376 | } | |
287c580e NC |
9377 | { |
9378 | char *ptr = ebuf + sizeof ebuf; | |
9379 | *--ptr = '\0'; | |
9380 | *--ptr = c; | |
9381 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ | |
9e5b023a | 9382 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) |
287c580e NC |
9383 | if (intsize == 'q') { |
9384 | /* Copy the one or more characters in a long double | |
9385 | * format before the 'base' ([efgEFG]) character to | |
9386 | * the format string. */ | |
9387 | static char const prifldbl[] = PERL_PRIfldbl; | |
9388 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
9389 | while (p >= prifldbl) { *--ptr = *p--; } | |
9390 | } | |
65202027 | 9391 | #endif |
287c580e NC |
9392 | if (has_precis) { |
9393 | base = precis; | |
9394 | do { *--ptr = '0' + (base % 10); } while (base /= 10); | |
9395 | *--ptr = '.'; | |
9396 | } | |
9397 | if (width) { | |
9398 | base = width; | |
9399 | do { *--ptr = '0' + (base % 10); } while (base /= 10); | |
9400 | } | |
9401 | if (fill == '0') | |
9402 | *--ptr = fill; | |
9403 | if (left) | |
9404 | *--ptr = '-'; | |
9405 | if (plus) | |
9406 | *--ptr = plus; | |
9407 | if (alt) | |
9408 | *--ptr = '#'; | |
9409 | *--ptr = '%'; | |
9410 | ||
9411 | /* No taint. Otherwise we are in the strange situation | |
9412 | * where printf() taints but print($float) doesn't. | |
9413 | * --jhi */ | |
9e5b023a | 9414 | #if defined(HAS_LONG_DOUBLE) |
287c580e NC |
9415 | if (intsize == 'q') |
9416 | (void)sprintf(PL_efloatbuf, ptr, nv); | |
9417 | else | |
9418 | (void)sprintf(PL_efloatbuf, ptr, (double)nv); | |
9e5b023a | 9419 | #else |
287c580e | 9420 | (void)sprintf(PL_efloatbuf, ptr, nv); |
9e5b023a | 9421 | #endif |
287c580e | 9422 | } |
48703b5e | 9423 | float_converted: |
80252599 GS |
9424 | eptr = PL_efloatbuf; |
9425 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 9426 | break; |
9427 | ||
fc36a67e | 9428 | /* SPECIAL */ |
9429 | ||
9430 | case 'n': | |
9431 | i = SvCUR(sv) - origlen; | |
be75b157 | 9432 | if (args && !vectorize) { |
c635e13b | 9433 | switch (intsize) { |
9434 | case 'h': *(va_arg(*args, short*)) = i; break; | |
9435 | default: *(va_arg(*args, int*)) = i; break; | |
9436 | case 'l': *(va_arg(*args, long*)) = i; break; | |
9437 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
9438 | #ifdef HAS_QUAD |
9439 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
9440 | #endif | |
c635e13b | 9441 | } |
fc36a67e | 9442 | } |
9dd79c3f | 9443 | else |
211dfcf1 | 9444 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 9445 | vectorize = FALSE; |
fc36a67e | 9446 | continue; /* not "break" */ |
9447 | ||
9448 | /* UNKNOWN */ | |
9449 | ||
46fc3d4c | 9450 | default: |
fc36a67e | 9451 | unknown: |
599cee73 | 9452 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 9453 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 9454 | SV *msg = sv_newmortal(); |
c293eb2b NC |
9455 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %sprintf: ", |
9456 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
0f4b6630 | 9457 | if (c) { |
0f4b6630 | 9458 | if (isPRINT(c)) |
1c846c1f | 9459 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
9460 | "\"%%%c\"", c & 0xFF); |
9461 | else | |
9462 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 9463 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 9464 | (UV)c & 0xFF); |
0f4b6630 | 9465 | } else |
c635e13b | 9466 | sv_catpv(msg, "end of string"); |
9014280d | 9467 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 9468 | } |
fb73857a | 9469 | |
9470 | /* output mangled stuff ... */ | |
9471 | if (c == '\0') | |
9472 | --q; | |
46fc3d4c | 9473 | eptr = p; |
9474 | elen = q - p; | |
fb73857a | 9475 | |
9476 | /* ... right here, because formatting flags should not apply */ | |
9477 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9478 | p = SvEND(sv); | |
4459522c | 9479 | Copy(eptr, p, elen, char); |
fb73857a | 9480 | p += elen; |
9481 | *p = '\0'; | |
fdac8c4b | 9482 | SvCUR_set(sv, p - SvPVX_const(sv)); |
d34f9d2e | 9483 | svix = osvix; |
fb73857a | 9484 | continue; /* not "break" */ |
46fc3d4c | 9485 | } |
9486 | ||
29359924 HS |
9487 | /* calculate width before utf8_upgrade changes it */ |
9488 | have = esignlen + zeros + elen; | |
9489 | ||
d2876be5 JH |
9490 | if (is_utf8 != has_utf8) { |
9491 | if (is_utf8) { | |
9492 | if (SvCUR(sv)) | |
9493 | sv_utf8_upgrade(sv); | |
9494 | } | |
9495 | else { | |
0188be2e | 9496 | SV * const nsv = sv_2mortal(newSVpvn(eptr, elen)); |
d2876be5 | 9497 | sv_utf8_upgrade(nsv); |
23c2bb70 | 9498 | eptr = SvPVX_const(nsv); |
d2876be5 JH |
9499 | elen = SvCUR(nsv); |
9500 | } | |
9501 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9502 | p = SvEND(sv); | |
9503 | *p = '\0'; | |
9504 | } | |
18729d3e JH |
9505 | /* Use memchr() instead of strchr(), as eptr is not guaranteed */ |
9506 | /* to point to a null-terminated string. */ | |
9507 | if (left && ckWARN(WARN_PRINTF) && memchr(eptr, '\n', elen) && | |
67bae6b3 JH |
9508 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) |
9509 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), | |
9510 | "Newline in left-justified string for %sprintf", | |
9511 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
d2876be5 | 9512 | |
46fc3d4c | 9513 | need = (have > width ? have : width); |
9514 | gap = need - have; | |
9515 | ||
b22c7a20 | 9516 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 9517 | p = SvEND(sv); |
9518 | if (esignlen && fill == '0') { | |
0188be2e | 9519 | int i; |
eb160463 | 9520 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9521 | *p++ = esignbuf[i]; |
9522 | } | |
9523 | if (gap && !left) { | |
9524 | memset(p, fill, gap); | |
9525 | p += gap; | |
9526 | } | |
9527 | if (esignlen && fill != '0') { | |
0188be2e | 9528 | int i; |
eb160463 | 9529 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9530 | *p++ = esignbuf[i]; |
9531 | } | |
fc36a67e | 9532 | if (zeros) { |
0188be2e | 9533 | int i; |
fc36a67e | 9534 | for (i = zeros; i; i--) |
9535 | *p++ = '0'; | |
9536 | } | |
46fc3d4c | 9537 | if (elen) { |
4459522c | 9538 | Copy(eptr, p, elen, char); |
46fc3d4c | 9539 | p += elen; |
9540 | } | |
9541 | if (gap && left) { | |
9542 | memset(p, ' ', gap); | |
9543 | p += gap; | |
9544 | } | |
b22c7a20 GS |
9545 | if (vectorize) { |
9546 | if (veclen) { | |
4459522c | 9547 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
9548 | p += dotstrlen; |
9549 | } | |
9550 | else | |
9551 | vectorize = FALSE; /* done iterating over vecstr */ | |
9552 | } | |
2cf2cfc6 A |
9553 | if (is_utf8) |
9554 | has_utf8 = TRUE; | |
9555 | if (has_utf8) | |
7e2040f0 | 9556 | SvUTF8_on(sv); |
46fc3d4c | 9557 | *p = '\0'; |
fdac8c4b | 9558 | SvCUR_set(sv, p - SvPVX_const(sv)); |
b22c7a20 GS |
9559 | if (vectorize) { |
9560 | esignlen = 0; | |
9561 | goto vector; | |
9562 | } | |
46fc3d4c | 9563 | } |
9564 | } | |
51371543 | 9565 | |
645c22ef DM |
9566 | /* ========================================================================= |
9567 | ||
9568 | =head1 Cloning an interpreter | |
9569 | ||
9570 | All the macros and functions in this section are for the private use of | |
9571 | the main function, perl_clone(). | |
9572 | ||
9573 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
9574 | During the course of a cloning, a hash table is used to map old addresses | |
9575 | to new addresses. The table is created and manipulated with the | |
9576 | ptr_table_* functions. | |
9577 | ||
9578 | =cut | |
9579 | ||
9580 | ============================================================================*/ | |
9581 | ||
9582 | ||
1d7c1841 GS |
9583 | #if defined(USE_ITHREADS) |
9584 | ||
4d1ff10f AB |
9585 | #if defined(USE_5005THREADS) |
9586 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
9587 | #endif |
9588 | ||
1d7c1841 GS |
9589 | #ifndef GpREFCNT_inc |
9590 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
9591 | #endif | |
9592 | ||
9593 | ||
d2d73c3e AB |
9594 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
9595 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
9596 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9597 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
9598 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9599 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
9600 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9601 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
9602 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9603 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
9604 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
9605 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
9606 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 9607 | |
d2d73c3e | 9608 | |
d2f185dc AMS |
9609 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
9610 | regcomp.c. AMS 20010712 */ | |
645c22ef | 9611 | |
1d7c1841 | 9612 | REGEXP * |
a8fc9800 | 9613 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 9614 | { |
d2f185dc AMS |
9615 | REGEXP *ret; |
9616 | int i, len, npar; | |
9617 | struct reg_substr_datum *s; | |
9618 | ||
9619 | if (!r) | |
9620 | return (REGEXP *)NULL; | |
9621 | ||
9622 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
9623 | return ret; | |
9624 | ||
9625 | len = r->offsets[0]; | |
9626 | npar = r->nparens+1; | |
9627 | ||
cd7a8267 | 9628 | Newxc(ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); |
d2f185dc AMS |
9629 | Copy(r->program, ret->program, len+1, regnode); |
9630 | ||
cd7a8267 | 9631 | Newx(ret->startp, npar, I32); |
d2f185dc | 9632 | Copy(r->startp, ret->startp, npar, I32); |
cd7a8267 | 9633 | Newx(ret->endp, npar, I32); |
d2f185dc AMS |
9634 | Copy(r->startp, ret->startp, npar, I32); |
9635 | ||
cd7a8267 | 9636 | Newx(ret->substrs, 1, struct reg_substr_data); |
d2f185dc AMS |
9637 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { |
9638 | s->min_offset = r->substrs->data[i].min_offset; | |
9639 | s->max_offset = r->substrs->data[i].max_offset; | |
9640 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 9641 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
9642 | } |
9643 | ||
70612e96 | 9644 | ret->regstclass = NULL; |
d2f185dc AMS |
9645 | if (r->data) { |
9646 | struct reg_data *d; | |
c05e0e2f | 9647 | const int count = r->data->count; |
0188be2e | 9648 | int i; |
d2f185dc | 9649 | |
cd7a8267 | 9650 | Newxc(d, sizeof(struct reg_data) + count*sizeof(void *), |
d2f185dc | 9651 | char, struct reg_data); |
cd7a8267 | 9652 | Newx(d->what, count, U8); |
d2f185dc AMS |
9653 | |
9654 | d->count = count; | |
9655 | for (i = 0; i < count; i++) { | |
9656 | d->what[i] = r->data->what[i]; | |
9657 | switch (d->what[i]) { | |
9658 | case 's': | |
9659 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
9660 | break; | |
9661 | case 'p': | |
9662 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
9663 | break; | |
9664 | case 'f': | |
9665 | /* This is cheating. */ | |
cd7a8267 | 9666 | Newx(d->data[i], 1, struct regnode_charclass_class); |
d2f185dc AMS |
9667 | StructCopy(r->data->data[i], d->data[i], |
9668 | struct regnode_charclass_class); | |
70612e96 | 9669 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
9670 | break; |
9671 | case 'o': | |
33773810 AMS |
9672 | /* Compiled op trees are readonly, and can thus be |
9673 | shared without duplication. */ | |
46330ab1 | 9674 | OP_REFCNT_LOCK; |
9b978d73 | 9675 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
46330ab1 | 9676 | OP_REFCNT_UNLOCK; |
9b978d73 | 9677 | break; |
d2f185dc AMS |
9678 | case 'n': |
9679 | d->data[i] = r->data->data[i]; | |
9680 | break; | |
9681 | } | |
9682 | } | |
9683 | ||
9684 | ret->data = d; | |
9685 | } | |
9686 | else | |
9687 | ret->data = NULL; | |
9688 | ||
cd7a8267 | 9689 | Newx(ret->offsets, 2*len+1, U32); |
d2f185dc AMS |
9690 | Copy(r->offsets, ret->offsets, 2*len+1, U32); |
9691 | ||
65b7047c | 9692 | ret->precomp = SAVEPVN(r->precomp, r->prelen); |
d2f185dc AMS |
9693 | ret->refcnt = r->refcnt; |
9694 | ret->minlen = r->minlen; | |
9695 | ret->prelen = r->prelen; | |
9696 | ret->nparens = r->nparens; | |
9697 | ret->lastparen = r->lastparen; | |
9698 | ret->lastcloseparen = r->lastcloseparen; | |
9699 | ret->reganch = r->reganch; | |
9700 | ||
70612e96 RG |
9701 | ret->sublen = r->sublen; |
9702 | ||
9703 | if (RX_MATCH_COPIED(ret)) | |
65b7047c | 9704 | ret->subbeg = SAVEPVN(r->subbeg, r->sublen); |
70612e96 RG |
9705 | else |
9706 | ret->subbeg = Nullch; | |
9707 | ||
d2f185dc AMS |
9708 | ptr_table_store(PL_ptr_table, r, ret); |
9709 | return ret; | |
1d7c1841 GS |
9710 | } |
9711 | ||
d2d73c3e | 9712 | /* duplicate a file handle */ |
645c22ef | 9713 | |
1d7c1841 | 9714 | PerlIO * |
a8fc9800 | 9715 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
9716 | { |
9717 | PerlIO *ret; | |
0188be2e AL |
9718 | |
9719 | PERL_UNUSED_ARG(type); | |
e2b56717 | 9720 | |
1d7c1841 GS |
9721 | if (!fp) |
9722 | return (PerlIO*)NULL; | |
9723 | ||
9724 | /* look for it in the table first */ | |
9725 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
9726 | if (ret) | |
9727 | return ret; | |
9728 | ||
9729 | /* create anew and remember what it is */ | |
ecdeb87c | 9730 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
9731 | ptr_table_store(PL_ptr_table, fp, ret); |
9732 | return ret; | |
9733 | } | |
9734 | ||
645c22ef DM |
9735 | /* duplicate a directory handle */ |
9736 | ||
1d7c1841 GS |
9737 | DIR * |
9738 | Perl_dirp_dup(pTHX_ DIR *dp) | |
9739 | { | |
9740 | if (!dp) | |
9741 | return (DIR*)NULL; | |
9742 | /* XXX TODO */ | |
9743 | return dp; | |
9744 | } | |
9745 | ||
ff276b08 | 9746 | /* duplicate a typeglob */ |
645c22ef | 9747 | |
1d7c1841 | 9748 | GP * |
a8fc9800 | 9749 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
9750 | { |
9751 | GP *ret; | |
9752 | if (!gp) | |
9753 | return (GP*)NULL; | |
9754 | /* look for it in the table first */ | |
9755 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
9756 | if (ret) | |
9757 | return ret; | |
9758 | ||
9759 | /* create anew and remember what it is */ | |
cd7a8267 | 9760 | Newxz(ret, 1, GP); |
1d7c1841 GS |
9761 | ptr_table_store(PL_ptr_table, gp, ret); |
9762 | ||
9763 | /* clone */ | |
9764 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
9765 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
9766 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
9767 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
9768 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
9769 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
9770 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
9771 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
9772 | ret->gp_cvgen = gp->gp_cvgen; |
9773 | ret->gp_flags = gp->gp_flags; | |
9774 | ret->gp_line = gp->gp_line; | |
9775 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
9776 | return ret; | |
9777 | } | |
9778 | ||
645c22ef DM |
9779 | /* duplicate a chain of magic */ |
9780 | ||
1d7c1841 | 9781 | MAGIC * |
a8fc9800 | 9782 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 9783 | { |
cb359b41 JH |
9784 | MAGIC *mgprev = (MAGIC*)NULL; |
9785 | MAGIC *mgret; | |
1d7c1841 GS |
9786 | if (!mg) |
9787 | return (MAGIC*)NULL; | |
9788 | /* look for it in the table first */ | |
9789 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
9790 | if (mgret) | |
9791 | return mgret; | |
9792 | ||
9793 | for (; mg; mg = mg->mg_moremagic) { | |
9794 | MAGIC *nmg; | |
cd7a8267 | 9795 | Newxz(nmg, 1, MAGIC); |
cb359b41 | 9796 | if (mgprev) |
1d7c1841 | 9797 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
9798 | else |
9799 | mgret = nmg; | |
1d7c1841 GS |
9800 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
9801 | nmg->mg_private = mg->mg_private; | |
9802 | nmg->mg_type = mg->mg_type; | |
9803 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 9804 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 9805 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 9806 | } |
05bd4103 | 9807 | else if(mg->mg_type == PERL_MAGIC_backref) { |
1f49be52 | 9808 | const AV * const av = (AV*) mg->mg_obj; |
fdc9a813 AE |
9809 | SV **svp; |
9810 | I32 i; | |
1f49be52 | 9811 | (void)SvREFCNT_inc(nmg->mg_obj = (SV*)newAV()); |
fdc9a813 AE |
9812 | svp = AvARRAY(av); |
9813 | for (i = AvFILLp(av); i >= 0; i--) { | |
3a81978b | 9814 | if (!svp[i]) continue; |
fdc9a813 AE |
9815 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); |
9816 | } | |
05bd4103 | 9817 | } |
1d7c1841 GS |
9818 | else { |
9819 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
9820 | ? sv_dup_inc(mg->mg_obj, param) |
9821 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
9822 | } |
9823 | nmg->mg_len = mg->mg_len; | |
9824 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 9825 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 9826 | if (mg->mg_len > 0) { |
1d7c1841 | 9827 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
9828 | if (mg->mg_type == PERL_MAGIC_overload_table && |
9829 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
9830 | { | |
1d7c1841 GS |
9831 | AMT *amtp = (AMT*)mg->mg_ptr; |
9832 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
9833 | I32 i; | |
9834 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 9835 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
9836 | } |
9837 | } | |
9838 | } | |
9839 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 9840 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 9841 | } |
68795e93 NIS |
9842 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
9843 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
9844 | } | |
1d7c1841 GS |
9845 | mgprev = nmg; |
9846 | } | |
9847 | return mgret; | |
9848 | } | |
9849 | ||
645c22ef DM |
9850 | /* create a new pointer-mapping table */ |
9851 | ||
1d7c1841 GS |
9852 | PTR_TBL_t * |
9853 | Perl_ptr_table_new(pTHX) | |
9854 | { | |
9855 | PTR_TBL_t *tbl; | |
cd7a8267 | 9856 | Newxz(tbl, 1, PTR_TBL_t); |
1d7c1841 GS |
9857 | tbl->tbl_max = 511; |
9858 | tbl->tbl_items = 0; | |
cd7a8267 | 9859 | Newxz(tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); |
1d7c1841 GS |
9860 | return tbl; |
9861 | } | |
9862 | ||
df34f778 NC |
9863 | #if (PTRSIZE == 8) |
9864 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 3) | |
9865 | #else | |
9866 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 2) | |
9867 | #endif | |
9868 | ||
72c9d3b6 NC |
9869 | |
9870 | ||
9871 | STATIC void | |
9872 | S_more_pte(pTHX) | |
9873 | { | |
69ddb3b9 NC |
9874 | struct ptr_tbl_ent* pte; |
9875 | struct ptr_tbl_ent* pteend; | |
72c9d3b6 NC |
9876 | XPV *ptr; |
9877 | New(54, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); | |
9878 | ptr->xpv_pv = (char*)PL_pte_arenaroot; | |
9879 | PL_pte_arenaroot = ptr; | |
9880 | ||
9881 | pte = (struct ptr_tbl_ent*)ptr; | |
9882 | pteend = &pte[PERL_ARENA_SIZE / sizeof(struct ptr_tbl_ent) - 1]; | |
9883 | PL_pte_root = ++pte; | |
9884 | while (pte < pteend) { | |
9885 | pte->next = pte + 1; | |
9886 | pte++; | |
9887 | } | |
9888 | pte->next = 0; | |
9889 | } | |
9890 | ||
9891 | STATIC struct ptr_tbl_ent* | |
9892 | S_new_pte(pTHX) | |
9893 | { | |
9894 | struct ptr_tbl_ent* pte; | |
9895 | if (!PL_pte_root) | |
9896 | S_more_pte(aTHX); | |
9897 | pte = PL_pte_root; | |
9898 | PL_pte_root = pte->next; | |
9899 | return pte; | |
9900 | } | |
9901 | ||
9902 | STATIC void | |
9903 | S_del_pte(pTHX_ struct ptr_tbl_ent*p) | |
9904 | { | |
9905 | p->next = PL_pte_root; | |
9906 | PL_pte_root = p; | |
9907 | } | |
9908 | ||
645c22ef DM |
9909 | /* map an existing pointer using a table */ |
9910 | ||
1d7c1841 GS |
9911 | void * |
9912 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
9913 | { | |
9914 | PTR_TBL_ENT_t *tblent; | |
065cbbe5 | 9915 | const UV hash = PTR_TABLE_HASH(sv); |
1d7c1841 GS |
9916 | assert(tbl); |
9917 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
9918 | for (; tblent; tblent = tblent->next) { | |
9919 | if (tblent->oldval == sv) | |
9920 | return tblent->newval; | |
9921 | } | |
9922 | return (void*)NULL; | |
9923 | } | |
9924 | ||
645c22ef DM |
9925 | /* add a new entry to a pointer-mapping table */ |
9926 | ||
1d7c1841 GS |
9927 | void |
9928 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
9929 | { | |
9930 | PTR_TBL_ENT_t *tblent, **otblent; | |
9931 | /* XXX this may be pessimal on platforms where pointers aren't good | |
9932 | * hash values e.g. if they grow faster in the most significant | |
9933 | * bits */ | |
065cbbe5 | 9934 | const UV hash = PTR_TABLE_HASH(oldv); |
df34f778 | 9935 | bool empty = 1; |
1d7c1841 GS |
9936 | |
9937 | assert(tbl); | |
9938 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
df34f778 | 9939 | for (tblent = *otblent; tblent; empty=0, tblent = tblent->next) { |
1d7c1841 GS |
9940 | if (tblent->oldval == oldv) { |
9941 | tblent->newval = newv; | |
1d7c1841 GS |
9942 | return; |
9943 | } | |
9944 | } | |
72c9d3b6 | 9945 | tblent = S_new_pte(aTHX); |
1d7c1841 GS |
9946 | tblent->oldval = oldv; |
9947 | tblent->newval = newv; | |
9948 | tblent->next = *otblent; | |
9949 | *otblent = tblent; | |
9950 | tbl->tbl_items++; | |
df34f778 | 9951 | if (!empty && tbl->tbl_items > tbl->tbl_max) |
1d7c1841 GS |
9952 | ptr_table_split(tbl); |
9953 | } | |
9954 | ||
645c22ef DM |
9955 | /* double the hash bucket size of an existing ptr table */ |
9956 | ||
1d7c1841 GS |
9957 | void |
9958 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
9959 | { | |
9960 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
065cbbe5 | 9961 | const UV oldsize = tbl->tbl_max + 1; |
1d7c1841 GS |
9962 | UV newsize = oldsize * 2; |
9963 | UV i; | |
9964 | ||
9965 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
9966 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
9967 | tbl->tbl_max = --newsize; | |
9968 | tbl->tbl_ary = ary; | |
9969 | for (i=0; i < oldsize; i++, ary++) { | |
9970 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
9971 | if (!*ary) | |
9972 | continue; | |
9973 | curentp = ary + oldsize; | |
9974 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
df34f778 | 9975 | if ((newsize & PTR_TABLE_HASH(ent->oldval)) != i) { |
1d7c1841 GS |
9976 | *entp = ent->next; |
9977 | ent->next = *curentp; | |
9978 | *curentp = ent; | |
9979 | continue; | |
9980 | } | |
9981 | else | |
9982 | entp = &ent->next; | |
9983 | } | |
9984 | } | |
9985 | } | |
9986 | ||
645c22ef DM |
9987 | /* remove all the entries from a ptr table */ |
9988 | ||
a0739874 DM |
9989 | void |
9990 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
9991 | { | |
9992 | register PTR_TBL_ENT_t **array; | |
9993 | register PTR_TBL_ENT_t *entry; | |
a0739874 DM |
9994 | UV riter = 0; |
9995 | UV max; | |
9996 | ||
9997 | if (!tbl || !tbl->tbl_items) { | |
9998 | return; | |
9999 | } | |
10000 | ||
10001 | array = tbl->tbl_ary; | |
10002 | entry = array[0]; | |
10003 | max = tbl->tbl_max; | |
10004 | ||
10005 | for (;;) { | |
10006 | if (entry) { | |
065cbbe5 | 10007 | PTR_TBL_ENT_t *oentry = entry; |
a0739874 | 10008 | entry = entry->next; |
72c9d3b6 | 10009 | S_del_pte(aTHX_ oentry); |
a0739874 DM |
10010 | } |
10011 | if (!entry) { | |
10012 | if (++riter > max) { | |
10013 | break; | |
10014 | } | |
10015 | entry = array[riter]; | |
10016 | } | |
10017 | } | |
10018 | ||
10019 | tbl->tbl_items = 0; | |
10020 | } | |
10021 | ||
645c22ef DM |
10022 | /* clear and free a ptr table */ |
10023 | ||
a0739874 DM |
10024 | void |
10025 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
10026 | { | |
10027 | if (!tbl) { | |
10028 | return; | |
10029 | } | |
10030 | ptr_table_clear(tbl); | |
10031 | Safefree(tbl->tbl_ary); | |
10032 | Safefree(tbl); | |
10033 | } | |
10034 | ||
1d7c1841 GS |
10035 | #ifdef DEBUGGING |
10036 | char *PL_watch_pvx; | |
10037 | #endif | |
10038 | ||
5bd07a3d | 10039 | |
645c22ef DM |
10040 | /* duplicate an SV of any type (including AV, HV etc) */ |
10041 | ||
83841fad NIS |
10042 | void |
10043 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
10044 | { | |
10045 | if (SvROK(sstr)) { | |
a8dc4fe8 SP |
10046 | SvRV_set(dstr, SvWEAKREF(sstr) |
10047 | ? sv_dup(SvRV(sstr), param) | |
10048 | : sv_dup_inc(SvRV(sstr), param)); | |
0da6cfda | 10049 | |
83841fad | 10050 | } |
fdac8c4b | 10051 | else if (SvPVX_const(sstr)) { |
83841fad NIS |
10052 | /* Has something there */ |
10053 | if (SvLEN(sstr)) { | |
68795e93 | 10054 | /* Normal PV - clone whole allocated space */ |
fdac8c4b | 10055 | SvPV_set(dstr, SAVEPVN(SvPVX_const(sstr), SvLEN(sstr)-1)); |
68795e93 | 10056 | } |
83841fad NIS |
10057 | else { |
10058 | /* Special case - not normally malloced for some reason */ | |
10059 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
10060 | /* A "shared" PV - clone it as unshared string */ | |
3e5ba712 | 10061 | if(SvPADTMP(sstr)) { |
efb84706 JH |
10062 | /* However, some of them live in the pad |
10063 | and they should not have these flags | |
10064 | turned off */ | |
3e5ba712 | 10065 | |
fdac8c4b | 10066 | SvPV_set(dstr, sharepvn(SvPVX_const(sstr), SvCUR(sstr), |
0da6cfda SP |
10067 | SvUVX(sstr))); |
10068 | SvUV_set(dstr, SvUVX(sstr)); | |
3e5ba712 JH |
10069 | } else { |
10070 | ||
fdac8c4b | 10071 | SvPV_set(dstr, SAVEPVN(SvPVX_const(sstr), SvCUR(sstr))); |
3e5ba712 JH |
10072 | SvFAKE_off(dstr); |
10073 | SvREADONLY_off(dstr); | |
efb84706 | 10074 | } |
83841fad NIS |
10075 | } |
10076 | else { | |
10077 | /* Some other special case - random pointer */ | |
0da6cfda | 10078 | SvPV_set(dstr, SvPVX(sstr)); |
83841fad NIS |
10079 | } |
10080 | } | |
10081 | } | |
10082 | else { | |
10083 | /* Copy the Null */ | |
0da6cfda | 10084 | if (SvTYPE(dstr) == SVt_RV) |
a8dc4fe8 | 10085 | SvRV_set(dstr, NULL); |
0da6cfda SP |
10086 | else |
10087 | SvPV_set(dstr, 0); | |
83841fad NIS |
10088 | } |
10089 | } | |
10090 | ||
1d7c1841 | 10091 | SV * |
a8fc9800 | 10092 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 10093 | { |
1d7c1841 GS |
10094 | SV *dstr; |
10095 | ||
10096 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
10097 | return Nullsv; | |
10098 | /* look for it in the table first */ | |
10099 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
10100 | if (dstr) | |
10101 | return dstr; | |
10102 | ||
457d3ae8 JH |
10103 | if(param->flags & CLONEf_JOIN_IN) { |
10104 | /** We are joining here so we don't want do clone | |
10105 | something that is bad **/ | |
26ab6a78 | 10106 | const char *hvname; |
457d3ae8 JH |
10107 | |
10108 | if(SvTYPE(sstr) == SVt_PVHV && | |
26ab6a78 | 10109 | (hvname = HvNAME_get(sstr))) { |
457d3ae8 | 10110 | /** don't clone stashes if they already exist **/ |
26ab6a78 | 10111 | HV* old_stash = gv_stashpv(hvname,0); |
457d3ae8 JH |
10112 | return (SV*) old_stash; |
10113 | } | |
10114 | } | |
10115 | ||
1d7c1841 GS |
10116 | /* create anew and remember what it is */ |
10117 | new_SV(dstr); | |
10118 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
10119 | ||
10120 | /* clone */ | |
10121 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
10122 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
10123 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
10124 | ||
10125 | #ifdef DEBUGGING | |
fdac8c4b | 10126 | if (SvANY(sstr) && PL_watch_pvx && SvPVX_const(sstr) == PL_watch_pvx) |
1d7c1841 | 10127 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", |
fdac8c4b | 10128 | PL_watch_pvx, SvPVX_const(sstr)); |
1d7c1841 GS |
10129 | #endif |
10130 | ||
c7df1ae8 NC |
10131 | /* don't clone objects whose class has asked us not to */ |
10132 | if (SvOBJECT(sstr) && ! (SvFLAGS(SvSTASH(sstr)) & SVphv_CLONEABLE)) { | |
10133 | SvFLAGS(dstr) &= ~SVTYPEMASK; | |
10134 | SvOBJECT_off(dstr); | |
10135 | return dstr; | |
10136 | } | |
10137 | ||
1d7c1841 GS |
10138 | switch (SvTYPE(sstr)) { |
10139 | case SVt_NULL: | |
10140 | SvANY(dstr) = NULL; | |
10141 | break; | |
10142 | case SVt_IV: | |
10143 | SvANY(dstr) = new_XIV(); | |
0da6cfda | 10144 | SvIV_set(dstr, SvIVX(sstr)); |
1d7c1841 GS |
10145 | break; |
10146 | case SVt_NV: | |
10147 | SvANY(dstr) = new_XNV(); | |
0da6cfda | 10148 | SvNV_set(dstr, SvNVX(sstr)); |
1d7c1841 GS |
10149 | break; |
10150 | case SVt_RV: | |
10151 | SvANY(dstr) = new_XRV(); | |
83841fad | 10152 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10153 | break; |
10154 | case SVt_PV: | |
10155 | SvANY(dstr) = new_XPV(); | |
a8dc4fe8 SP |
10156 | SvCUR_set(dstr, SvCUR(sstr)); |
10157 | SvLEN_set(dstr, SvLEN(sstr)); | |
83841fad | 10158 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10159 | break; |
10160 | case SVt_PVIV: | |
10161 | SvANY(dstr) = new_XPVIV(); | |
a8dc4fe8 SP |
10162 | SvCUR_set(dstr, SvCUR(sstr)); |
10163 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda | 10164 | SvIV_set(dstr, SvIVX(sstr)); |
83841fad | 10165 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10166 | break; |
10167 | case SVt_PVNV: | |
10168 | SvANY(dstr) = new_XPVNV(); | |
a8dc4fe8 SP |
10169 | SvCUR_set(dstr, SvCUR(sstr)); |
10170 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10171 | SvIV_set(dstr, SvIVX(sstr)); |
10172 | SvNV_set(dstr, SvNVX(sstr)); | |
83841fad | 10173 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10174 | break; |
10175 | case SVt_PVMG: | |
10176 | SvANY(dstr) = new_XPVMG(); | |
a8dc4fe8 SP |
10177 | SvCUR_set(dstr, SvCUR(sstr)); |
10178 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10179 | SvIV_set(dstr, SvIVX(sstr)); |
10180 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10181 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10182 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10183 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10184 | break; |
10185 | case SVt_PVBM: | |
10186 | SvANY(dstr) = new_XPVBM(); | |
a8dc4fe8 SP |
10187 | SvCUR_set(dstr, SvCUR(sstr)); |
10188 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10189 | SvIV_set(dstr, SvIVX(sstr)); |
10190 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10191 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10192 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10193 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10194 | BmRARE(dstr) = BmRARE(sstr); |
10195 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
10196 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
10197 | break; | |
10198 | case SVt_PVLV: | |
10199 | SvANY(dstr) = new_XPVLV(); | |
a8dc4fe8 SP |
10200 | SvCUR_set(dstr, SvCUR(sstr)); |
10201 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10202 | SvIV_set(dstr, SvIVX(sstr)); |
10203 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10204 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10205 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10206 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10207 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
10208 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
73c86719 JH |
10209 | if (LvTYPE(sstr) == 't') /* for tie: unrefcnted fake (SV**) */ |
10210 | LvTARG(dstr) = dstr; | |
10211 | else if (LvTYPE(sstr) == 'T') /* for tie: fake HE */ | |
10212 | LvTARG(dstr) = (SV*)he_dup((HE*)LvTARG(sstr), 0, param); | |
10213 | else | |
10214 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); | |
1d7c1841 GS |
10215 | LvTYPE(dstr) = LvTYPE(sstr); |
10216 | break; | |
10217 | case SVt_PVGV: | |
7fb37951 | 10218 | if (GvUNIQUE((GV*)sstr)) { |
1e27baec | 10219 | /* Do sharing here. */ |
5bd07a3d | 10220 | } |
1d7c1841 | 10221 | SvANY(dstr) = new_XPVGV(); |
a8dc4fe8 SP |
10222 | SvCUR_set(dstr, SvCUR(sstr)); |
10223 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10224 | SvIV_set(dstr, SvIVX(sstr)); |
10225 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10226 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10227 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10228 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10229 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
10230 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 10231 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 10232 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 10233 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
10234 | (void)GpREFCNT_inc(GvGP(dstr)); |
10235 | break; | |
10236 | case SVt_PVIO: | |
10237 | SvANY(dstr) = new_XPVIO(); | |
a8dc4fe8 SP |
10238 | SvCUR_set(dstr, SvCUR(sstr)); |
10239 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10240 | SvIV_set(dstr, SvIVX(sstr)); |
10241 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10242 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10243 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10244 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 10245 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
10246 | if (IoOFP(sstr) == IoIFP(sstr)) |
10247 | IoOFP(dstr) = IoIFP(dstr); | |
10248 | else | |
a8fc9800 | 10249 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
10250 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
10251 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
10252 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
10253 | else | |
10254 | IoDIRP(dstr) = IoDIRP(sstr); | |
10255 | IoLINES(dstr) = IoLINES(sstr); | |
10256 | IoPAGE(dstr) = IoPAGE(sstr); | |
10257 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
10258 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
4376702e JH |
10259 | if(IoFLAGS(sstr) & IOf_FAKE_DIRP) { |
10260 | /* I have no idea why fake dirp (rsfps) | |
10261 | should be treaded differently but otherwise | |
10262 | we end up with leaks -- sky*/ | |
10263 | IoTOP_GV(dstr) = gv_dup_inc(IoTOP_GV(sstr), param); | |
10264 | IoFMT_GV(dstr) = gv_dup_inc(IoFMT_GV(sstr), param); | |
10265 | IoBOTTOM_GV(dstr) = gv_dup_inc(IoBOTTOM_GV(sstr), param); | |
10266 | } else { | |
10267 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); | |
10268 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); | |
10269 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); | |
10270 | } | |
1d7c1841 | 10271 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); |
1d7c1841 | 10272 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
1d7c1841 | 10273 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
1d7c1841 GS |
10274 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
10275 | IoTYPE(dstr) = IoTYPE(sstr); | |
10276 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
10277 | break; | |
10278 | case SVt_PVAV: | |
10279 | SvANY(dstr) = new_XPVAV(); | |
a8dc4fe8 SP |
10280 | SvCUR_set(dstr, SvCUR(sstr)); |
10281 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10282 | SvIV_set(dstr, SvIVX(sstr)); |
10283 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10284 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10285 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
d2d73c3e | 10286 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); |
1d7c1841 GS |
10287 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
10288 | if (AvARRAY((AV*)sstr)) { | |
10289 | SV **dst_ary, **src_ary; | |
10290 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
10291 | ||
10292 | src_ary = AvARRAY((AV*)sstr); | |
10293 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
10294 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
0da6cfda | 10295 | SvPV_set(dstr, (char*)dst_ary); |
1d7c1841 GS |
10296 | AvALLOC((AV*)dstr) = dst_ary; |
10297 | if (AvREAL((AV*)sstr)) { | |
10298 | while (items-- > 0) | |
d2d73c3e | 10299 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
10300 | } |
10301 | else { | |
10302 | while (items-- > 0) | |
d2d73c3e | 10303 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
10304 | } |
10305 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
10306 | while (items-- > 0) { | |
10307 | *dst_ary++ = &PL_sv_undef; | |
10308 | } | |
10309 | } | |
10310 | else { | |
0da6cfda | 10311 | SvPV_set(dstr, Nullch); |
1d7c1841 GS |
10312 | AvALLOC((AV*)dstr) = (SV**)NULL; |
10313 | } | |
10314 | break; | |
10315 | case SVt_PVHV: | |
10316 | SvANY(dstr) = new_XPVHV(); | |
a8dc4fe8 SP |
10317 | SvCUR_set(dstr, SvCUR(sstr)); |
10318 | SvLEN_set(dstr, SvLEN(sstr)); | |
1a21fcb5 | 10319 | HvTOTALKEYS(dstr) = HvTOTALKEYS(sstr); |
0da6cfda | 10320 | SvNV_set(dstr, SvNVX(sstr)); |
a8dc4fe8 SP |
10321 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10322 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
26ab6a78 | 10323 | HvRITER_set((HV*)dstr, HvRITER_get((HV*)sstr)); |
1d7c1841 | 10324 | if (HvARRAY((HV*)sstr)) { |
4d4670a8 | 10325 | bool sharekeys = !!HvSHAREKEYS(sstr); |
1d7c1841 GS |
10326 | STRLEN i = 0; |
10327 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
10328 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
cd7a8267 | 10329 | Newx(dxhv->xhv_array, |
1d7c1841 GS |
10330 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); |
10331 | while (i <= sxhv->xhv_max) { | |
4d4670a8 AL |
10332 | HE *source = HvARRAY(sstr)[i]; |
10333 | HvARRAY(dstr)[i] | |
10334 | = source ? he_dup(source, sharekeys, param) : 0; | |
1d7c1841 GS |
10335 | ++i; |
10336 | } | |
eb160463 GS |
10337 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, |
10338 | (bool)!!HvSHAREKEYS(sstr), param); | |
1d7c1841 GS |
10339 | } |
10340 | else { | |
0da6cfda | 10341 | SvPV_set(dstr, Nullch); |
26ab6a78 | 10342 | HvEITER_set((HV*)dstr, (HE*)NULL); |
1d7c1841 GS |
10343 | } |
10344 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
10345 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
26ab6a78 | 10346 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 10347 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 10348 | av_push(param->stashes, dstr); |
1d7c1841 GS |
10349 | break; |
10350 | case SVt_PVFM: | |
10351 | SvANY(dstr) = new_XPVFM(); | |
10352 | FmLINES(dstr) = FmLINES(sstr); | |
10353 | goto dup_pvcv; | |
10354 | /* NOTREACHED */ | |
10355 | case SVt_PVCV: | |
10356 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 10357 | dup_pvcv: |
a8dc4fe8 SP |
10358 | SvCUR_set(dstr, SvCUR(sstr)); |
10359 | SvLEN_set(dstr, SvLEN(sstr)); | |
0da6cfda SP |
10360 | SvIV_set(dstr, SvIVX(sstr)); |
10361 | SvNV_set(dstr, SvNVX(sstr)); | |
a8dc4fe8 SP |
10362 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10363 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10364 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 10365 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 | 10366 | CvSTART(dstr) = CvSTART(sstr); |
46330ab1 | 10367 | OP_REFCNT_LOCK; |
1d7c1841 | 10368 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); |
46330ab1 | 10369 | OP_REFCNT_UNLOCK; |
1d7c1841 GS |
10370 | CvXSUB(dstr) = CvXSUB(sstr); |
10371 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
10372 | if (CvCONST(sstr)) { |
10373 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
10374 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
10375 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
10376 | } | |
a23cf089 JD |
10377 | /* don't dup if copying back - CvGV isn't refcounted, so the |
10378 | * duped GV may never be freed. A bit of a hack! DAPM */ | |
10379 | CvGV(dstr) = (param->flags & CLONEf_JOIN_IN) ? | |
10380 | Nullgv : gv_dup(CvGV(sstr), param) ; | |
d2d73c3e AB |
10381 | if (param->flags & CLONEf_COPY_STACKS) { |
10382 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
10383 | } else { | |
10384 | CvDEPTH(dstr) = 0; | |
10385 | } | |
9755d405 | 10386 | PAD_DUP(CvPADLIST(dstr), CvPADLIST(sstr), param); |
d7afa7f5 JH |
10387 | CvOUTSIDE_SEQ(dstr) = CvOUTSIDE_SEQ(sstr); |
10388 | CvOUTSIDE(dstr) = | |
10389 | CvWEAKOUTSIDE(sstr) | |
10390 | ? cv_dup( CvOUTSIDE(sstr), param) | |
10391 | : cv_dup_inc(CvOUTSIDE(sstr), param); | |
1d7c1841 | 10392 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 10393 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
10394 | break; |
10395 | default: | |
c803eecc | 10396 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", (IV)SvTYPE(sstr)); |
1d7c1841 GS |
10397 | break; |
10398 | } | |
10399 | ||
10400 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
10401 | ++PL_sv_objcount; | |
10402 | ||
10403 | return dstr; | |
d2d73c3e | 10404 | } |
1d7c1841 | 10405 | |
645c22ef DM |
10406 | /* duplicate a context */ |
10407 | ||
1d7c1841 | 10408 | PERL_CONTEXT * |
a8fc9800 | 10409 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
10410 | { |
10411 | PERL_CONTEXT *ncxs; | |
10412 | ||
10413 | if (!cxs) | |
10414 | return (PERL_CONTEXT*)NULL; | |
10415 | ||
10416 | /* look for it in the table first */ | |
10417 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
10418 | if (ncxs) | |
10419 | return ncxs; | |
10420 | ||
10421 | /* create anew and remember what it is */ | |
cd7a8267 | 10422 | Newxz(ncxs, max + 1, PERL_CONTEXT); |
1d7c1841 GS |
10423 | ptr_table_store(PL_ptr_table, cxs, ncxs); |
10424 | ||
10425 | while (ix >= 0) { | |
10426 | PERL_CONTEXT *cx = &cxs[ix]; | |
10427 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
10428 | ncx->cx_type = cx->cx_type; | |
10429 | if (CxTYPE(cx) == CXt_SUBST) { | |
10430 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
10431 | } | |
10432 | else { | |
10433 | ncx->blk_oldsp = cx->blk_oldsp; | |
10434 | ncx->blk_oldcop = cx->blk_oldcop; | |
10435 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
10436 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
10437 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
10438 | ncx->blk_oldpm = cx->blk_oldpm; | |
10439 | ncx->blk_gimme = cx->blk_gimme; | |
10440 | switch (CxTYPE(cx)) { | |
10441 | case CXt_SUB: | |
10442 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
10443 | ? cv_dup_inc(cx->blk_sub.cv, param) |
10444 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 10445 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 10446 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 10447 | : Nullav); |
d2d73c3e | 10448 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
10449 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
10450 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
10451 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
10452 | break; | |
10453 | case CXt_EVAL: | |
10454 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
10455 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 10456 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 10457 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 10458 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
10459 | break; |
10460 | case CXt_LOOP: | |
10461 | ncx->blk_loop.label = cx->blk_loop.label; | |
10462 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
10463 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
10464 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
10465 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
10466 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
10467 | ? cx->blk_loop.iterdata | |
d2d73c3e | 10468 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
d7afa7f5 JH |
10469 | ncx->blk_loop.oldcomppad |
10470 | = (PAD*)ptr_table_fetch(PL_ptr_table, | |
10471 | cx->blk_loop.oldcomppad); | |
d2d73c3e AB |
10472 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
10473 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
10474 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
10475 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
10476 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
10477 | break; | |
10478 | case CXt_FORMAT: | |
d2d73c3e AB |
10479 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
10480 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
10481 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
10482 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
10483 | break; | |
10484 | case CXt_BLOCK: | |
10485 | case CXt_NULL: | |
10486 | break; | |
10487 | } | |
10488 | } | |
10489 | --ix; | |
10490 | } | |
10491 | return ncxs; | |
10492 | } | |
10493 | ||
645c22ef DM |
10494 | /* duplicate a stack info structure */ |
10495 | ||
1d7c1841 | 10496 | PERL_SI * |
a8fc9800 | 10497 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
10498 | { |
10499 | PERL_SI *nsi; | |
10500 | ||
10501 | if (!si) | |
10502 | return (PERL_SI*)NULL; | |
10503 | ||
10504 | /* look for it in the table first */ | |
10505 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
10506 | if (nsi) | |
10507 | return nsi; | |
10508 | ||
10509 | /* create anew and remember what it is */ | |
cd7a8267 | 10510 | Newxz(nsi, 1, PERL_SI); |
1d7c1841 GS |
10511 | ptr_table_store(PL_ptr_table, si, nsi); |
10512 | ||
d2d73c3e | 10513 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
10514 | nsi->si_cxix = si->si_cxix; |
10515 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 10516 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 10517 | nsi->si_type = si->si_type; |
d2d73c3e AB |
10518 | nsi->si_prev = si_dup(si->si_prev, param); |
10519 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
10520 | nsi->si_markoff = si->si_markoff; |
10521 | ||
10522 | return nsi; | |
10523 | } | |
10524 | ||
10525 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
10526 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
10527 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
10528 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
10529 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
10530 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
21637969 YST |
10531 | #define POPBOOL(ss,ix) ((ss)[--(ix)].any_bool) |
10532 | #define TOPBOOL(ss,ix) ((ss)[ix].any_bool) | |
1d7c1841 GS |
10533 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) |
10534 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
10535 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
10536 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
10537 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
10538 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
10539 | ||
10540 | /* XXXXX todo */ | |
10541 | #define pv_dup_inc(p) SAVEPV(p) | |
10542 | #define pv_dup(p) SAVEPV(p) | |
10543 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
10544 | ||
645c22ef DM |
10545 | /* map any object to the new equivent - either something in the |
10546 | * ptr table, or something in the interpreter structure | |
10547 | */ | |
10548 | ||
1d7c1841 GS |
10549 | void * |
10550 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
10551 | { | |
10552 | void *ret; | |
10553 | ||
10554 | if (!v) | |
10555 | return (void*)NULL; | |
10556 | ||
10557 | /* look for it in the table first */ | |
10558 | ret = ptr_table_fetch(PL_ptr_table, v); | |
10559 | if (ret) | |
10560 | return ret; | |
10561 | ||
10562 | /* see if it is part of the interpreter structure */ | |
10563 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 10564 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 10565 | else { |
1d7c1841 | 10566 | ret = v; |
05ec9bb3 | 10567 | } |
1d7c1841 GS |
10568 | |
10569 | return ret; | |
10570 | } | |
10571 | ||
645c22ef DM |
10572 | /* duplicate the save stack */ |
10573 | ||
1d7c1841 | 10574 | ANY * |
a8fc9800 | 10575 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 | 10576 | { |
0188be2e AL |
10577 | ANY * const ss = proto_perl->Tsavestack; |
10578 | const I32 max = proto_perl->Tsavestack_max; | |
10579 | I32 ix = proto_perl->Tsavestack_ix; | |
1d7c1841 GS |
10580 | ANY *nss; |
10581 | SV *sv; | |
10582 | GV *gv; | |
10583 | AV *av; | |
10584 | HV *hv; | |
10585 | void* ptr; | |
10586 | int intval; | |
10587 | long longval; | |
10588 | GP *gp; | |
10589 | IV iv; | |
c4e33207 | 10590 | char *c = NULL; |
1d7c1841 | 10591 | void (*dptr) (void*); |
acfe0abc | 10592 | void (*dxptr) (pTHX_ void*); |
1d7c1841 | 10593 | |
cd7a8267 | 10594 | Newxz(nss, max, ANY); |
1d7c1841 GS |
10595 | |
10596 | while (ix > 0) { | |
481da01c | 10597 | I32 i = POPINT(ss,ix); |
1d7c1841 GS |
10598 | TOPINT(nss,ix) = i; |
10599 | switch (i) { | |
10600 | case SAVEt_ITEM: /* normal string */ | |
10601 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10602 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10603 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10604 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10605 | break; |
10606 | case SAVEt_SV: /* scalar reference */ | |
10607 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10608 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10609 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10610 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 10611 | break; |
f4dd75d9 GS |
10612 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
10613 | c = (char*)POPPTR(ss,ix); | |
10614 | TOPPTR(nss,ix) = pv_dup(c); | |
10615 | ptr = POPPTR(ss,ix); | |
10616 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10617 | break; | |
05ec9bb3 NIS |
10618 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
10619 | c = (char*)POPPTR(ss,ix); | |
10620 | TOPPTR(nss,ix) = savesharedpv(c); | |
10621 | ptr = POPPTR(ss,ix); | |
10622 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10623 | break; | |
1d7c1841 GS |
10624 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
10625 | case SAVEt_SVREF: /* scalar reference */ | |
10626 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10627 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10628 | ptr = POPPTR(ss,ix); |
10629 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
10630 | break; | |
10631 | case SAVEt_AV: /* array reference */ | |
10632 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10633 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 10634 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10635 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10636 | break; |
10637 | case SAVEt_HV: /* hash reference */ | |
10638 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10639 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 10640 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10641 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10642 | break; |
10643 | case SAVEt_INT: /* int reference */ | |
10644 | ptr = POPPTR(ss,ix); | |
10645 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10646 | intval = (int)POPINT(ss,ix); | |
10647 | TOPINT(nss,ix) = intval; | |
10648 | break; | |
10649 | case SAVEt_LONG: /* long reference */ | |
10650 | ptr = POPPTR(ss,ix); | |
10651 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10652 | longval = (long)POPLONG(ss,ix); | |
10653 | TOPLONG(nss,ix) = longval; | |
10654 | break; | |
10655 | case SAVEt_I32: /* I32 reference */ | |
10656 | case SAVEt_I16: /* I16 reference */ | |
10657 | case SAVEt_I8: /* I8 reference */ | |
10658 | ptr = POPPTR(ss,ix); | |
10659 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10660 | i = POPINT(ss,ix); | |
10661 | TOPINT(nss,ix) = i; | |
10662 | break; | |
10663 | case SAVEt_IV: /* IV reference */ | |
10664 | ptr = POPPTR(ss,ix); | |
10665 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10666 | iv = POPIV(ss,ix); | |
10667 | TOPIV(nss,ix) = iv; | |
10668 | break; | |
10669 | case SAVEt_SPTR: /* SV* reference */ | |
10670 | ptr = POPPTR(ss,ix); | |
10671 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10672 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10673 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
10674 | break; |
10675 | case SAVEt_VPTR: /* random* reference */ | |
10676 | ptr = POPPTR(ss,ix); | |
10677 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10678 | ptr = POPPTR(ss,ix); | |
10679 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10680 | break; | |
10681 | case SAVEt_PPTR: /* char* reference */ | |
10682 | ptr = POPPTR(ss,ix); | |
10683 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10684 | c = (char*)POPPTR(ss,ix); | |
10685 | TOPPTR(nss,ix) = pv_dup(c); | |
10686 | break; | |
10687 | case SAVEt_HPTR: /* HV* reference */ | |
10688 | ptr = POPPTR(ss,ix); | |
10689 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10690 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10691 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
10692 | break; |
10693 | case SAVEt_APTR: /* AV* reference */ | |
10694 | ptr = POPPTR(ss,ix); | |
10695 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10696 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10697 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
10698 | break; |
10699 | case SAVEt_NSTAB: | |
10700 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 10701 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10702 | break; |
10703 | case SAVEt_GP: /* scalar reference */ | |
10704 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 10705 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
10706 | (void)GpREFCNT_inc(gp); |
10707 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 10708 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
10709 | c = (char*)POPPTR(ss,ix); |
10710 | TOPPTR(nss,ix) = pv_dup(c); | |
10711 | iv = POPIV(ss,ix); | |
10712 | TOPIV(nss,ix) = iv; | |
10713 | iv = POPIV(ss,ix); | |
10714 | TOPIV(nss,ix) = iv; | |
10715 | break; | |
10716 | case SAVEt_FREESV: | |
26d9b02f | 10717 | case SAVEt_MORTALIZESV: |
1d7c1841 | 10718 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10719 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10720 | break; |
10721 | case SAVEt_FREEOP: | |
10722 | ptr = POPPTR(ss,ix); | |
10723 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
10724 | /* these are assumed to be refcounted properly */ | |
0188be2e | 10725 | OP *o; |
1d7c1841 GS |
10726 | switch (((OP*)ptr)->op_type) { |
10727 | case OP_LEAVESUB: | |
10728 | case OP_LEAVESUBLV: | |
10729 | case OP_LEAVEEVAL: | |
10730 | case OP_LEAVE: | |
10731 | case OP_SCOPE: | |
10732 | case OP_LEAVEWRITE: | |
e977893f GS |
10733 | TOPPTR(nss,ix) = ptr; |
10734 | o = (OP*)ptr; | |
10735 | OpREFCNT_inc(o); | |
1d7c1841 GS |
10736 | break; |
10737 | default: | |
10738 | TOPPTR(nss,ix) = Nullop; | |
10739 | break; | |
10740 | } | |
10741 | } | |
10742 | else | |
10743 | TOPPTR(nss,ix) = Nullop; | |
10744 | break; | |
10745 | case SAVEt_FREEPV: | |
10746 | c = (char*)POPPTR(ss,ix); | |
10747 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
10748 | break; | |
10749 | case SAVEt_CLEARSV: | |
10750 | longval = POPLONG(ss,ix); | |
10751 | TOPLONG(nss,ix) = longval; | |
10752 | break; | |
10753 | case SAVEt_DELETE: | |
10754 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10755 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
10756 | c = (char*)POPPTR(ss,ix); |
10757 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
10758 | i = POPINT(ss,ix); | |
10759 | TOPINT(nss,ix) = i; | |
10760 | break; | |
10761 | case SAVEt_DESTRUCTOR: | |
10762 | ptr = POPPTR(ss,ix); | |
10763 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
10764 | dptr = POPDPTR(ss,ix); | |
1c7ab622 NC |
10765 | TOPDPTR(nss,ix) = DPTR2FPTR(void (*)(void*), |
10766 | any_dup(FPTR2DPTR(void *, dptr), | |
10767 | proto_perl)); | |
1d7c1841 GS |
10768 | break; |
10769 | case SAVEt_DESTRUCTOR_X: | |
10770 | ptr = POPPTR(ss,ix); | |
10771 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
10772 | dxptr = POPDXPTR(ss,ix); | |
1c7ab622 NC |
10773 | TOPDXPTR(nss,ix) = DPTR2FPTR(void (*)(pTHX_ void*), |
10774 | any_dup(FPTR2DPTR(void *, dxptr), | |
10775 | proto_perl)); | |
1d7c1841 GS |
10776 | break; |
10777 | case SAVEt_REGCONTEXT: | |
10778 | case SAVEt_ALLOC: | |
10779 | i = POPINT(ss,ix); | |
10780 | TOPINT(nss,ix) = i; | |
10781 | ix -= i; | |
10782 | break; | |
10783 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
10784 | i = POPINT(ss,ix); | |
10785 | TOPINT(nss,ix) = i; | |
10786 | break; | |
10787 | case SAVEt_AELEM: /* array element */ | |
10788 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10789 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10790 | i = POPINT(ss,ix); |
10791 | TOPINT(nss,ix) = i; | |
10792 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10793 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
10794 | break; |
10795 | case SAVEt_HELEM: /* hash element */ | |
10796 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10797 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10798 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10799 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10800 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 10801 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
10802 | break; |
10803 | case SAVEt_OP: | |
10804 | ptr = POPPTR(ss,ix); | |
10805 | TOPPTR(nss,ix) = ptr; | |
10806 | break; | |
10807 | case SAVEt_HINTS: | |
10808 | i = POPINT(ss,ix); | |
10809 | TOPINT(nss,ix) = i; | |
10810 | break; | |
c4410b1b GS |
10811 | case SAVEt_COMPPAD: |
10812 | av = (AV*)POPPTR(ss,ix); | |
c2ef0052 | 10813 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 10814 | break; |
c3564e5c GS |
10815 | case SAVEt_PADSV: |
10816 | longval = (long)POPLONG(ss,ix); | |
10817 | TOPLONG(nss,ix) = longval; | |
10818 | ptr = POPPTR(ss,ix); | |
10819 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10820 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10821 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 10822 | break; |
4f4e7967 | 10823 | case SAVEt_BOOL: |
21637969 | 10824 | ptr = POPPTR(ss,ix); |
4f4e7967 | 10825 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); |
21637969 | 10826 | longval = (long)POPBOOL(ss,ix); |
4f4e7967 JH |
10827 | TOPBOOL(nss,ix) = (bool)longval; |
10828 | break; | |
1d7c1841 GS |
10829 | default: |
10830 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
10831 | } | |
10832 | } | |
10833 | ||
10834 | return nss; | |
10835 | } | |
10836 | ||
c7df1ae8 NC |
10837 | |
10838 | /* if sv is a stash, call $class->CLONE_SKIP(), and set the SVphv_CLONEABLE | |
10839 | * flag to the result. This is done for each stash before cloning starts, | |
10840 | * so we know which stashes want their objects cloned */ | |
10841 | ||
10842 | static void | |
10843 | do_mark_cloneable_stash(pTHX_ SV *sv) | |
10844 | { | |
0188be2e | 10845 | const char *const hvname = HvNAME_get((HV*)sv); |
26ab6a78 | 10846 | if (hvname) { |
0188be2e | 10847 | GV* const cloner = gv_fetchmethod_autoload((HV*)sv, "CLONE_SKIP", 0); |
c7df1ae8 NC |
10848 | SvFLAGS(sv) |= SVphv_CLONEABLE; /* clone objects by default */ |
10849 | if (cloner && GvCV(cloner)) { | |
10850 | dSP; | |
10851 | UV status; | |
10852 | ||
10853 | ENTER; | |
10854 | SAVETMPS; | |
10855 | PUSHMARK(SP); | |
26ab6a78 | 10856 | XPUSHs(sv_2mortal(newSVpv(hvname, 0))); |
c7df1ae8 NC |
10857 | PUTBACK; |
10858 | call_sv((SV*)GvCV(cloner), G_SCALAR); | |
10859 | SPAGAIN; | |
10860 | status = POPu; | |
10861 | PUTBACK; | |
10862 | FREETMPS; | |
10863 | LEAVE; | |
10864 | if (status) | |
10865 | SvFLAGS(sv) &= ~SVphv_CLONEABLE; | |
10866 | } | |
10867 | } | |
10868 | } | |
10869 | ||
10870 | ||
10871 | ||
645c22ef DM |
10872 | /* |
10873 | =for apidoc perl_clone | |
10874 | ||
10875 | Create and return a new interpreter by cloning the current one. | |
10876 | ||
ac388100 | 10877 | perl_clone takes these flags as parameters: |
4f4e7967 JH |
10878 | |
10879 | CLONEf_COPY_STACKS - is used to, well, copy the stacks also, | |
10880 | without it we only clone the data and zero the stacks, | |
10881 | with it we copy the stacks and the new perl interpreter is | |
10882 | ready to run at the exact same point as the previous one. | |
10883 | The pseudo-fork code uses COPY_STACKS while the | |
10884 | threads->new doesn't. | |
10885 | ||
10886 | CLONEf_KEEP_PTR_TABLE | |
10887 | perl_clone keeps a ptr_table with the pointer of the old | |
10888 | variable as a key and the new variable as a value, | |
10889 | this allows it to check if something has been cloned and not | |
10890 | clone it again but rather just use the value and increase the | |
10891 | refcount. If KEEP_PTR_TABLE is not set then perl_clone will kill | |
10892 | the ptr_table using the function | |
10893 | C<ptr_table_free(PL_ptr_table); PL_ptr_table = NULL;>, | |
10894 | reason to keep it around is if you want to dup some of your own | |
10895 | variable who are outside the graph perl scans, example of this | |
10896 | code is in threads.xs create | |
10897 | ||
10898 | CLONEf_CLONE_HOST | |
10899 | This is a win32 thing, it is ignored on unix, it tells perls | |
10900 | win32host code (which is c++) to clone itself, this is needed on | |
10901 | win32 if you want to run two threads at the same time, | |
10902 | if you just want to do some stuff in a separate perl interpreter | |
10903 | and then throw it away and return to the original one, | |
10904 | you don't need to do anything. | |
10905 | ||
645c22ef DM |
10906 | =cut |
10907 | */ | |
10908 | ||
10909 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
10910 | EXTERN_C PerlInterpreter * |
10911 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 10912 | |
1d7c1841 GS |
10913 | PerlInterpreter * |
10914 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
10915 | { | |
1d7c1841 | 10916 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
10917 | |
10918 | /* perlhost.h so we need to call into it | |
10919 | to clone the host, CPerlHost should have a c interface, sky */ | |
10920 | ||
10921 | if (flags & CLONEf_CLONE_HOST) { | |
10922 | return perl_clone_host(proto_perl,flags); | |
10923 | } | |
10924 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
10925 | proto_perl->IMem, |
10926 | proto_perl->IMemShared, | |
10927 | proto_perl->IMemParse, | |
10928 | proto_perl->IEnv, | |
10929 | proto_perl->IStdIO, | |
10930 | proto_perl->ILIO, | |
10931 | proto_perl->IDir, | |
10932 | proto_perl->ISock, | |
10933 | proto_perl->IProc); | |
10934 | } | |
10935 | ||
10936 | PerlInterpreter * | |
10937 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
10938 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
10939 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
10940 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
10941 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
10942 | struct IPerlProc* ipP) | |
10943 | { | |
10944 | /* XXX many of the string copies here can be optimized if they're | |
10945 | * constants; they need to be allocated as common memory and just | |
10946 | * their pointers copied. */ | |
10947 | ||
23cd8e9f | 10948 | IV i; |
64aa0685 GS |
10949 | CLONE_PARAMS clone_params; |
10950 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 10951 | |
1d7c1841 | 10952 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
c7df1ae8 NC |
10953 | /* for each stash, determine whether its objects should be cloned */ |
10954 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 10955 | PERL_SET_THX(my_perl); |
1d7c1841 | 10956 | |
acfe0abc | 10957 | # ifdef DEBUGGING |
a4530404 | 10958 | Poison(my_perl, 1, PerlInterpreter); |
2802784b NC |
10959 | PL_op = Nullop; |
10960 | PL_curcop = (COP *)Nullop; | |
1d7c1841 GS |
10961 | PL_markstack = 0; |
10962 | PL_scopestack = 0; | |
10963 | PL_savestack = 0; | |
26776375 JH |
10964 | PL_savestack_ix = 0; |
10965 | PL_savestack_max = -1; | |
1d7c1841 | 10966 | PL_retstack = 0; |
66fe0623 | 10967 | PL_sig_pending = 0; |
25596c82 | 10968 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 10969 | # else /* !DEBUGGING */ |
1d7c1841 | 10970 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 10971 | # endif /* DEBUGGING */ |
1d7c1841 GS |
10972 | |
10973 | /* host pointers */ | |
10974 | PL_Mem = ipM; | |
10975 | PL_MemShared = ipMS; | |
10976 | PL_MemParse = ipMP; | |
10977 | PL_Env = ipE; | |
10978 | PL_StdIO = ipStd; | |
10979 | PL_LIO = ipLIO; | |
10980 | PL_Dir = ipD; | |
10981 | PL_Sock = ipS; | |
10982 | PL_Proc = ipP; | |
1d7c1841 GS |
10983 | #else /* !PERL_IMPLICIT_SYS */ |
10984 | IV i; | |
64aa0685 GS |
10985 | CLONE_PARAMS clone_params; |
10986 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 10987 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
c7df1ae8 NC |
10988 | /* for each stash, determine whether its objects should be cloned */ |
10989 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 10990 | PERL_SET_THX(my_perl); |
1d7c1841 GS |
10991 | |
10992 | # ifdef DEBUGGING | |
a4530404 | 10993 | Poison(my_perl, 1, PerlInterpreter); |
2802784b NC |
10994 | PL_op = Nullop; |
10995 | PL_curcop = (COP *)Nullop; | |
1d7c1841 GS |
10996 | PL_markstack = 0; |
10997 | PL_scopestack = 0; | |
10998 | PL_savestack = 0; | |
26776375 JH |
10999 | PL_savestack_ix = 0; |
11000 | PL_savestack_max = -1; | |
1d7c1841 | 11001 | PL_retstack = 0; |
66fe0623 | 11002 | PL_sig_pending = 0; |
25596c82 | 11003 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
11004 | # else /* !DEBUGGING */ |
11005 | Zero(my_perl, 1, PerlInterpreter); | |
11006 | # endif /* DEBUGGING */ | |
11007 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 11008 | param->flags = flags; |
59b40662 | 11009 | param->proto_perl = proto_perl; |
1d7c1841 GS |
11010 | |
11011 | /* arena roots */ | |
11012 | PL_xiv_arenaroot = NULL; | |
11013 | PL_xiv_root = NULL; | |
612f20c3 | 11014 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 11015 | PL_xnv_root = NULL; |
612f20c3 | 11016 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 11017 | PL_xrv_root = NULL; |
612f20c3 | 11018 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 11019 | PL_xpv_root = NULL; |
612f20c3 | 11020 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 11021 | PL_xpviv_root = NULL; |
612f20c3 | 11022 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 11023 | PL_xpvnv_root = NULL; |
612f20c3 | 11024 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 11025 | PL_xpvcv_root = NULL; |
612f20c3 | 11026 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 11027 | PL_xpvav_root = NULL; |
612f20c3 | 11028 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 11029 | PL_xpvhv_root = NULL; |
612f20c3 | 11030 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 11031 | PL_xpvmg_root = NULL; |
69ddb3b9 NC |
11032 | PL_xpvgv_arenaroot = NULL; |
11033 | PL_xpvgv_root = NULL; | |
612f20c3 | 11034 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 11035 | PL_xpvlv_root = NULL; |
612f20c3 | 11036 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 11037 | PL_xpvbm_root = NULL; |
612f20c3 | 11038 | PL_he_arenaroot = NULL; |
1d7c1841 | 11039 | PL_he_root = NULL; |
72c9d3b6 NC |
11040 | #if defined(USE_ITHREADS) |
11041 | PL_pte_arenaroot = NULL; | |
11042 | PL_pte_root = NULL; | |
11043 | #endif | |
1d7c1841 GS |
11044 | PL_nice_chunk = NULL; |
11045 | PL_nice_chunk_size = 0; | |
11046 | PL_sv_count = 0; | |
11047 | PL_sv_objcount = 0; | |
11048 | PL_sv_root = Nullsv; | |
11049 | PL_sv_arenaroot = Nullsv; | |
11050 | ||
11051 | PL_debug = proto_perl->Idebug; | |
11052 | ||
1a21fcb5 NC |
11053 | PL_hash_seed = proto_perl->Ihash_seed; |
11054 | PL_rehash_seed = proto_perl->Irehash_seed; | |
11055 | ||
e5dd39fc | 11056 | #ifdef USE_REENTRANT_API |
1c693a8c NC |
11057 | /* XXX: things like -Dm will segfault here in perlio, but doing |
11058 | * PERL_SET_CONTEXT(proto_perl); | |
11059 | * breaks too many other things | |
11060 | */ | |
59bd0823 | 11061 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
11062 | #endif |
11063 | ||
1d7c1841 GS |
11064 | /* create SV map for pointer relocation */ |
11065 | PL_ptr_table = ptr_table_new(); | |
11066 | ||
11067 | /* initialize these special pointers as early as possible */ | |
11068 | SvANY(&PL_sv_undef) = NULL; | |
11069 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
11070 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
11071 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
11072 | ||
1d7c1841 | 11073 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 | 11074 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
0766c23b NC |
11075 | SvFLAGS(&PL_sv_no) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11076 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
0da6cfda | 11077 | SvPV_set(&PL_sv_no, SAVEPVN(PL_No, 0)); |
a8dc4fe8 SP |
11078 | SvCUR_set(&PL_sv_no, 0); |
11079 | SvLEN_set(&PL_sv_no, 1); | |
0da6cfda SP |
11080 | SvIV_set(&PL_sv_no, 0); |
11081 | SvNV_set(&PL_sv_no, 0); | |
1d7c1841 GS |
11082 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); |
11083 | ||
1d7c1841 | 11084 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 | 11085 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
0766c23b NC |
11086 | SvFLAGS(&PL_sv_yes) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11087 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
0da6cfda | 11088 | SvPV_set(&PL_sv_yes, SAVEPVN(PL_Yes, 1)); |
a8dc4fe8 SP |
11089 | SvCUR_set(&PL_sv_yes, 1); |
11090 | SvLEN_set(&PL_sv_yes, 2); | |
0da6cfda SP |
11091 | SvIV_set(&PL_sv_yes, 1); |
11092 | SvNV_set(&PL_sv_yes, 1); | |
1d7c1841 GS |
11093 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); |
11094 | ||
05ec9bb3 | 11095 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
11096 | PL_strtab = newHV(); |
11097 | HvSHAREKEYS_off(PL_strtab); | |
1a21fcb5 | 11098 | hv_ksplit(PL_strtab, HvTOTALKEYS(proto_perl->Istrtab)); |
1d7c1841 GS |
11099 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); |
11100 | ||
05ec9bb3 NIS |
11101 | PL_compiling = proto_perl->Icompiling; |
11102 | ||
11103 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
11104 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
11105 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
11106 | ||
11107 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
11108 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
11109 | ||
1d7c1841 GS |
11110 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
11111 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 11112 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 11113 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 11114 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
11115 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
11116 | ||
11117 | /* pseudo environmental stuff */ | |
11118 | PL_origargc = proto_perl->Iorigargc; | |
7223e9d8 | 11119 | PL_origargv = proto_perl->Iorigargv; |
d2d73c3e | 11120 | |
d2d73c3e AB |
11121 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
11122 | ||
a1ea730d | 11123 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
11124 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
11125 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 11126 | #endif |
d2d73c3e AB |
11127 | |
11128 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
11129 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
11130 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 11131 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
11132 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
11133 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
11134 | |
11135 | /* switches */ | |
11136 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 11137 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
11138 | PL_localpatches = proto_perl->Ilocalpatches; |
11139 | PL_splitstr = proto_perl->Isplitstr; | |
11140 | PL_preprocess = proto_perl->Ipreprocess; | |
11141 | PL_minus_n = proto_perl->Iminus_n; | |
11142 | PL_minus_p = proto_perl->Iminus_p; | |
11143 | PL_minus_l = proto_perl->Iminus_l; | |
11144 | PL_minus_a = proto_perl->Iminus_a; | |
11145 | PL_minus_F = proto_perl->Iminus_F; | |
11146 | PL_doswitches = proto_perl->Idoswitches; | |
11147 | PL_dowarn = proto_perl->Idowarn; | |
11148 | PL_doextract = proto_perl->Idoextract; | |
11149 | PL_sawampersand = proto_perl->Isawampersand; | |
11150 | PL_unsafe = proto_perl->Iunsafe; | |
11151 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 11152 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
11153 | PL_perldb = proto_perl->Iperldb; |
11154 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 11155 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
11156 | |
11157 | /* magical thingies */ | |
11158 | /* XXX time(&PL_basetime) when asked for? */ | |
11159 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 11160 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
11161 | |
11162 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
11163 | PL_multiline = proto_perl->Imultiline; | |
11164 | PL_statusvalue = proto_perl->Istatusvalue; | |
11165 | #ifdef VMS | |
11166 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
11167 | #endif | |
0a378802 | 11168 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 11169 | |
4a4c6fe3 | 11170 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
11171 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
11172 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 11173 | |
d2f185dc AMS |
11174 | /* Clone the regex array */ |
11175 | PL_regex_padav = newAV(); | |
11176 | { | |
8c18bf38 | 11177 | const I32 len = av_len((AV*)proto_perl->Iregex_padav); |
0188be2e | 11178 | SV** const regexen = AvARRAY((AV*)proto_perl->Iregex_padav); |
481da01c | 11179 | IV i; |
0f95fc41 AB |
11180 | av_push(PL_regex_padav, |
11181 | sv_dup_inc(regexen[0],param)); | |
11182 | for(i = 1; i <= len; i++) { | |
11183 | if(SvREPADTMP(regexen[i])) { | |
11184 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 11185 | } else { |
0f95fc41 AB |
11186 | av_push(PL_regex_padav, |
11187 | SvREFCNT_inc( | |
8cf8f3d1 | 11188 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 11189 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
11190 | )); |
11191 | } | |
d2f185dc AMS |
11192 | } |
11193 | } | |
11194 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 11195 | |
1d7c1841 | 11196 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
11197 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
11198 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
11199 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
11200 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
11201 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
11202 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
11203 | |
11204 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 11205 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
11206 | |
11207 | /* shortcuts to misc objects */ | |
d2d73c3e | 11208 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
11209 | |
11210 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
11211 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
11212 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
11213 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
11214 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
11215 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
11216 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
11217 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
11218 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
11219 | |
11220 | /* symbol tables */ | |
d2d73c3e AB |
11221 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
11222 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
11223 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
11224 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
11225 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
11226 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
11227 | ||
11228 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 11229 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
5b7ea690 | 11230 | PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); |
d2d73c3e AB |
11231 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
11232 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
11233 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
11234 | |
11235 | PL_sub_generation = proto_perl->Isub_generation; | |
11236 | ||
11237 | /* funky return mechanisms */ | |
11238 | PL_forkprocess = proto_perl->Iforkprocess; | |
11239 | ||
11240 | /* subprocess state */ | |
d2d73c3e | 11241 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
11242 | |
11243 | /* internal state */ | |
11244 | PL_tainting = proto_perl->Itainting; | |
654c77f7 | 11245 | PL_taint_warn = proto_perl->Itaint_warn; |
1d7c1841 GS |
11246 | PL_maxo = proto_perl->Imaxo; |
11247 | if (proto_perl->Iop_mask) | |
11248 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
11249 | else | |
11250 | PL_op_mask = Nullch; | |
11251 | ||
11252 | /* current interpreter roots */ | |
d2d73c3e | 11253 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
11254 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
11255 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 11256 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
11257 | PL_eval_start = proto_perl->Ieval_start; |
11258 | ||
11259 | /* runtime control stuff */ | |
11260 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
11261 | PL_copline = proto_perl->Icopline; | |
11262 | ||
11263 | PL_filemode = proto_perl->Ifilemode; | |
11264 | PL_lastfd = proto_perl->Ilastfd; | |
11265 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
11266 | PL_Argv = NULL; | |
11267 | PL_Cmd = Nullch; | |
11268 | PL_gensym = proto_perl->Igensym; | |
11269 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 11270 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
11271 | PL_laststatval = proto_perl->Ilaststatval; |
11272 | PL_laststype = proto_perl->Ilaststype; | |
11273 | PL_mess_sv = Nullsv; | |
11274 | ||
d2d73c3e | 11275 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
11276 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
11277 | ||
11278 | /* interpreter atexit processing */ | |
11279 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
11280 | if (PL_exitlistlen) { | |
cd7a8267 | 11281 | Newx(PL_exitlist, PL_exitlistlen, PerlExitListEntry); |
1d7c1841 GS |
11282 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); |
11283 | } | |
11284 | else | |
11285 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 11286 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
11287 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
11288 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
11289 | |
11290 | PL_profiledata = NULL; | |
a8fc9800 | 11291 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 11292 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 11293 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 11294 | |
d2d73c3e | 11295 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
9755d405 JH |
11296 | |
11297 | PAD_CLONE_VARS(proto_perl, param); | |
1d7c1841 GS |
11298 | |
11299 | #ifdef HAVE_INTERP_INTERN | |
11300 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
11301 | #endif | |
11302 | ||
11303 | /* more statics moved here */ | |
11304 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 11305 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
11306 | |
11307 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
11308 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
11309 | ||
11310 | PL_uid = proto_perl->Iuid; | |
11311 | PL_euid = proto_perl->Ieuid; | |
11312 | PL_gid = proto_perl->Igid; | |
11313 | PL_egid = proto_perl->Iegid; | |
11314 | PL_nomemok = proto_perl->Inomemok; | |
11315 | PL_an = proto_perl->Ian; | |
1d7c1841 GS |
11316 | PL_op_seqmax = proto_perl->Iop_seqmax; |
11317 | PL_evalseq = proto_perl->Ievalseq; | |
11318 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
11319 | PL_origalen = proto_perl->Iorigalen; | |
11320 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
11321 | PL_osname = SAVEPV(proto_perl->Iosname); | |
8257dec7 | 11322 | PL_sh_path_compat = proto_perl->Ish_path_compat; /* XXX never deallocated */ |
1d7c1841 GS |
11323 | PL_sighandlerp = proto_perl->Isighandlerp; |
11324 | ||
11325 | ||
11326 | PL_runops = proto_perl->Irunops; | |
11327 | ||
11328 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
11329 | ||
11330 | #ifdef CSH | |
11331 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 11332 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
11333 | #endif |
11334 | ||
11335 | PL_lex_state = proto_perl->Ilex_state; | |
11336 | PL_lex_defer = proto_perl->Ilex_defer; | |
11337 | PL_lex_expect = proto_perl->Ilex_expect; | |
11338 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
11339 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
11340 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
11341 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
11342 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
11343 | PL_lex_op = proto_perl->Ilex_op; |
11344 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
11345 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
11346 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
11347 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
11348 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
11349 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
11350 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
11351 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
11352 | ||
11353 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
11354 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
11355 | PL_nexttoke = proto_perl->Inexttoke; | |
11356 | ||
1d773130 TB |
11357 | /* XXX This is probably masking the deeper issue of why |
11358 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
11359 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
11360 | * (A little debugging with a watchpoint on it may help.) | |
11361 | */ | |
389edf32 TB |
11362 | if (SvANY(proto_perl->Ilinestr)) { |
11363 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
fdac8c4b | 11364 | i = proto_perl->Ibufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11365 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11366 | i = proto_perl->Ioldbufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11367 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11368 | i = proto_perl->Ioldoldbufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11369 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11370 | i = proto_perl->Ilinestart - SvPVX_const(proto_perl->Ilinestr); |
389edf32 TB |
11371 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
11372 | } | |
11373 | else { | |
11374 | PL_linestr = NEWSV(65,79); | |
11375 | sv_upgrade(PL_linestr,SVt_PVIV); | |
11376 | sv_setpvn(PL_linestr,"",0); | |
11377 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
11378 | } | |
1d7c1841 | 11379 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
11380 | PL_pending_ident = proto_perl->Ipending_ident; |
11381 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
11382 | ||
11383 | PL_expect = proto_perl->Iexpect; | |
11384 | ||
11385 | PL_multi_start = proto_perl->Imulti_start; | |
11386 | PL_multi_end = proto_perl->Imulti_end; | |
11387 | PL_multi_open = proto_perl->Imulti_open; | |
11388 | PL_multi_close = proto_perl->Imulti_close; | |
11389 | ||
11390 | PL_error_count = proto_perl->Ierror_count; | |
11391 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 11392 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 | 11393 | |
1d773130 | 11394 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 | 11395 | if (SvANY(proto_perl->Ilinestr)) { |
fdac8c4b | 11396 | i = proto_perl->Ilast_uni - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11397 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
fdac8c4b | 11398 | i = proto_perl->Ilast_lop - SvPVX_const(proto_perl->Ilinestr); |
389edf32 TB |
11399 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
11400 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
11401 | } | |
11402 | else { | |
11403 | PL_last_uni = SvPVX(PL_linestr); | |
11404 | PL_last_lop = SvPVX(PL_linestr); | |
11405 | PL_last_lop_op = 0; | |
11406 | } | |
1d7c1841 | 11407 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 11408 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
11409 | #ifdef FCRYPT |
11410 | PL_cryptseen = proto_perl->Icryptseen; | |
11411 | #endif | |
11412 | ||
11413 | PL_hints = proto_perl->Ihints; | |
11414 | ||
11415 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
11416 | ||
11417 | #ifdef USE_LOCALE_COLLATE | |
11418 | PL_collation_ix = proto_perl->Icollation_ix; | |
11419 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
11420 | PL_collation_standard = proto_perl->Icollation_standard; | |
11421 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
11422 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
11423 | #endif /* USE_LOCALE_COLLATE */ | |
11424 | ||
11425 | #ifdef USE_LOCALE_NUMERIC | |
11426 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
11427 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
11428 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 11429 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
11430 | #endif /* !USE_LOCALE_NUMERIC */ |
11431 | ||
11432 | /* utf8 character classes */ | |
d2d73c3e AB |
11433 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
11434 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
11435 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
11436 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
11437 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
11438 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
11439 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
11440 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
11441 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
11442 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
11443 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
11444 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
11445 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
11446 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
11447 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
11448 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
11449 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 11450 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
11451 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
11452 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 | 11453 | |
654c77f7 | 11454 | /* Did the locale setup indicate UTF-8? */ |
30260be2 | 11455 | PL_utf8locale = proto_perl->Iutf8locale; |
654c77f7 JH |
11456 | /* Unicode features (see perlrun/-C) */ |
11457 | PL_unicode = proto_perl->Iunicode; | |
11458 | ||
11459 | /* Pre-5.8 signals control */ | |
11460 | PL_signals = proto_perl->Isignals; | |
11461 | ||
11462 | /* times() ticks per second */ | |
11463 | PL_clocktick = proto_perl->Iclocktick; | |
11464 | ||
11465 | /* Recursion stopper for PerlIO_find_layer */ | |
11466 | PL_in_load_module = proto_perl->Iin_load_module; | |
11467 | ||
11468 | /* sort() routine */ | |
11469 | PL_sort_RealCmp = proto_perl->Isort_RealCmp; | |
11470 | ||
630cd32b JH |
11471 | /* Not really needed/useful since the reenrant_retint is "volatile", |
11472 | * but do it for consistency's sake. */ | |
11473 | PL_reentrant_retint = proto_perl->Ireentrant_retint; | |
11474 | ||
0710cc63 JH |
11475 | /* Hooks to shared SVs and locks. */ |
11476 | PL_sharehook = proto_perl->Isharehook; | |
11477 | PL_lockhook = proto_perl->Ilockhook; | |
11478 | PL_unlockhook = proto_perl->Iunlockhook; | |
11479 | PL_threadhook = proto_perl->Ithreadhook; | |
11480 | ||
11481 | PL_runops_std = proto_perl->Irunops_std; | |
11482 | PL_runops_dbg = proto_perl->Irunops_dbg; | |
11483 | ||
11484 | #ifdef THREADS_HAVE_PIDS | |
11485 | PL_ppid = proto_perl->Ippid; | |
11486 | #endif | |
11487 | ||
1d7c1841 GS |
11488 | /* swatch cache */ |
11489 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
11490 | PL_last_swash_klen = 0; | |
11491 | PL_last_swash_key[0]= '\0'; | |
11492 | PL_last_swash_tmps = (U8*)NULL; | |
11493 | PL_last_swash_slen = 0; | |
11494 | ||
11495 | /* perly.c globals */ | |
11496 | PL_yydebug = proto_perl->Iyydebug; | |
11497 | PL_yynerrs = proto_perl->Iyynerrs; | |
11498 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
11499 | PL_yychar = proto_perl->Iyychar; | |
11500 | PL_yyval = proto_perl->Iyyval; | |
11501 | PL_yylval = proto_perl->Iyylval; | |
11502 | ||
11503 | PL_glob_index = proto_perl->Iglob_index; | |
11504 | PL_srand_called = proto_perl->Isrand_called; | |
11505 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
11506 | PL_bitcount = Nullch; /* reinits on demand */ | |
11507 | ||
66fe0623 | 11508 | if (proto_perl->Ipsig_pend) { |
cd7a8267 | 11509 | Newxz(PL_psig_pend, SIG_SIZE, int); |
9dd79c3f | 11510 | } |
66fe0623 NIS |
11511 | else { |
11512 | PL_psig_pend = (int*)NULL; | |
11513 | } | |
11514 | ||
1d7c1841 | 11515 | if (proto_perl->Ipsig_ptr) { |
cd7a8267 JC |
11516 | Newxz(PL_psig_ptr, SIG_SIZE, SV*); |
11517 | Newxz(PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 11518 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
11519 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
11520 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
11521 | } |
11522 | } | |
11523 | else { | |
11524 | PL_psig_ptr = (SV**)NULL; | |
11525 | PL_psig_name = (SV**)NULL; | |
11526 | } | |
11527 | ||
11528 | /* thrdvar.h stuff */ | |
11529 | ||
a0739874 | 11530 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
11531 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
11532 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
11533 | PL_tmps_max = proto_perl->Ttmps_max; | |
11534 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
cd7a8267 | 11535 | Newxz(PL_tmps_stack, PL_tmps_max, SV*); |
1d7c1841 GS |
11536 | i = 0; |
11537 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 11538 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
11539 | ++i; |
11540 | } | |
11541 | ||
11542 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
11543 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
cd7a8267 | 11544 | Newxz(PL_markstack, i, I32); |
1d7c1841 GS |
11545 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max |
11546 | - proto_perl->Tmarkstack); | |
11547 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
11548 | - proto_perl->Tmarkstack); | |
11549 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
11550 | PL_markstack_ptr - PL_markstack + 1, I32); | |
11551 | ||
11552 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
11553 | * NOTE: unlike the others! */ | |
11554 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
11555 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
cd7a8267 | 11556 | Newxz(PL_scopestack, PL_scopestack_max, I32); |
1d7c1841 GS |
11557 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); |
11558 | ||
11559 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
11560 | * NOTE: unlike the others! */ | |
11561 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
11562 | PL_retstack_max = proto_perl->Tretstack_max; | |
11563 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
ce0a1ae0 | 11564 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, OP*); |
1d7c1841 GS |
11565 | |
11566 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 11567 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
11568 | |
11569 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
11570 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
11571 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
11572 | |
11573 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
11574 | PL_stack_base = AvARRAY(PL_curstack); | |
11575 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
11576 | - proto_perl->Tstack_base); | |
11577 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
11578 | ||
11579 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
11580 | * NOTE: unlike the others! */ | |
11581 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
11582 | PL_savestack_max = proto_perl->Tsavestack_max; | |
cd7a8267 | 11583 | /*Newxz(PL_savestack, PL_savestack_max, ANY);*/ |
d2d73c3e | 11584 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
11585 | } |
11586 | else { | |
11587 | init_stacks(); | |
985e7056 | 11588 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
11589 | } |
11590 | ||
11591 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
11592 | PL_top_env = &PL_start_env; | |
11593 | ||
11594 | PL_op = proto_perl->Top; | |
11595 | ||
11596 | PL_Sv = Nullsv; | |
11597 | PL_Xpv = (XPV*)NULL; | |
11598 | PL_na = proto_perl->Tna; | |
11599 | ||
11600 | PL_statbuf = proto_perl->Tstatbuf; | |
11601 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
11602 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
11603 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
11604 | #ifdef HAS_TIMES |
11605 | PL_timesbuf = proto_perl->Ttimesbuf; | |
11606 | #endif | |
11607 | ||
11608 | PL_tainted = proto_perl->Ttainted; | |
11609 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
11610 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
11611 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
11612 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
11613 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 11614 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
11615 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
11616 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
11617 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
11618 | |
11619 | PL_restartop = proto_perl->Trestartop; | |
11620 | PL_in_eval = proto_perl->Tin_eval; | |
11621 | PL_delaymagic = proto_perl->Tdelaymagic; | |
11622 | PL_dirty = proto_perl->Tdirty; | |
11623 | PL_localizing = proto_perl->Tlocalizing; | |
11624 | ||
14dd3ad8 | 11625 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 11626 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 11627 | #endif |
d2d73c3e | 11628 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
73c86719 | 11629 | PL_hv_fetch_ent_mh = Nullhe; |
1d7c1841 GS |
11630 | PL_modcount = proto_perl->Tmodcount; |
11631 | PL_lastgotoprobe = Nullop; | |
11632 | PL_dumpindent = proto_perl->Tdumpindent; | |
11633 | ||
11634 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
11635 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
11636 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
11637 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
11638 | PL_sortcxix = proto_perl->Tsortcxix; |
11639 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
11640 | PL_efloatsize = 0; /* reinits on demand */ | |
11641 | ||
11642 | /* regex stuff */ | |
11643 | ||
11644 | PL_screamfirst = NULL; | |
11645 | PL_screamnext = NULL; | |
11646 | PL_maxscream = -1; /* reinits on demand */ | |
11647 | PL_lastscream = Nullsv; | |
11648 | ||
11649 | PL_watchaddr = NULL; | |
11650 | PL_watchok = Nullch; | |
11651 | ||
11652 | PL_regdummy = proto_perl->Tregdummy; | |
11653 | PL_regcomp_parse = Nullch; | |
11654 | PL_regxend = Nullch; | |
11655 | PL_regcode = (regnode*)NULL; | |
11656 | PL_regnaughty = 0; | |
11657 | PL_regsawback = 0; | |
11658 | PL_regprecomp = Nullch; | |
11659 | PL_regnpar = 0; | |
11660 | PL_regsize = 0; | |
11661 | PL_regflags = 0; | |
11662 | PL_regseen = 0; | |
11663 | PL_seen_zerolen = 0; | |
11664 | PL_seen_evals = 0; | |
11665 | PL_regcomp_rx = (regexp*)NULL; | |
11666 | PL_extralen = 0; | |
11667 | PL_colorset = 0; /* reinits PL_colors[] */ | |
11668 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
11669 | PL_reg_whilem_seen = 0; | |
11670 | PL_reginput = Nullch; | |
11671 | PL_regbol = Nullch; | |
11672 | PL_regeol = Nullch; | |
11673 | PL_regstartp = (I32*)NULL; | |
11674 | PL_regendp = (I32*)NULL; | |
11675 | PL_reglastparen = (U32*)NULL; | |
4e58e0cf | 11676 | PL_reglastcloseparen = (U32*)NULL; |
1d7c1841 | 11677 | PL_regtill = Nullch; |
1d7c1841 GS |
11678 | PL_reg_start_tmp = (char**)NULL; |
11679 | PL_reg_start_tmpl = 0; | |
11680 | PL_regdata = (struct reg_data*)NULL; | |
11681 | PL_bostr = Nullch; | |
11682 | PL_reg_flags = 0; | |
11683 | PL_reg_eval_set = 0; | |
11684 | PL_regnarrate = 0; | |
11685 | PL_regprogram = (regnode*)NULL; | |
11686 | PL_regindent = 0; | |
11687 | PL_regcc = (CURCUR*)NULL; | |
11688 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
11689 | PL_reg_re = (regexp*)NULL; | |
11690 | PL_reg_ganch = Nullch; | |
11691 | PL_reg_sv = Nullsv; | |
53c4c00c | 11692 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
11693 | PL_reg_magic = (MAGIC*)NULL; |
11694 | PL_reg_oldpos = 0; | |
11695 | PL_reg_oldcurpm = (PMOP*)NULL; | |
11696 | PL_reg_curpm = (PMOP*)NULL; | |
11697 | PL_reg_oldsaved = Nullch; | |
11698 | PL_reg_oldsavedlen = 0; | |
11699 | PL_reg_maxiter = 0; | |
11700 | PL_reg_leftiter = 0; | |
11701 | PL_reg_poscache = Nullch; | |
11702 | PL_reg_poscache_size= 0; | |
11703 | ||
11704 | /* RE engine - function pointers */ | |
11705 | PL_regcompp = proto_perl->Tregcompp; | |
11706 | PL_regexecp = proto_perl->Tregexecp; | |
11707 | PL_regint_start = proto_perl->Tregint_start; | |
11708 | PL_regint_string = proto_perl->Tregint_string; | |
11709 | PL_regfree = proto_perl->Tregfree; | |
11710 | ||
11711 | PL_reginterp_cnt = 0; | |
11712 | PL_reg_starttry = 0; | |
11713 | ||
a2efc822 SC |
11714 | /* Pluggable optimizer */ |
11715 | PL_peepp = proto_perl->Tpeepp; | |
11716 | ||
c0401c5d JH |
11717 | PL_stashcache = newHV(); |
11718 | ||
a0739874 DM |
11719 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
11720 | ptr_table_free(PL_ptr_table); | |
11721 | PL_ptr_table = NULL; | |
11722 | } | |
8cf8f3d1 | 11723 | |
f284b03f AMS |
11724 | /* Call the ->CLONE method, if it exists, for each of the stashes |
11725 | identified by sv_dup() above. | |
11726 | */ | |
d2d73c3e | 11727 | while(av_len(param->stashes) != -1) { |
0188be2e AL |
11728 | HV* const stash = (HV*) av_shift(param->stashes); |
11729 | GV* const cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); | |
f284b03f AMS |
11730 | if (cloner && GvCV(cloner)) { |
11731 | dSP; | |
11732 | ENTER; | |
11733 | SAVETMPS; | |
11734 | PUSHMARK(SP); | |
26ab6a78 | 11735 | XPUSHs(sv_2mortal(newSVpv(HvNAME_get(stash), 0))); |
f284b03f AMS |
11736 | PUTBACK; |
11737 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
11738 | FREETMPS; | |
11739 | LEAVE; | |
11740 | } | |
4a09accc | 11741 | } |
a0739874 | 11742 | |
dc507217 | 11743 | SvREFCNT_dec(param->stashes); |
dc507217 | 11744 | |
d2e2df35 MHM |
11745 | /* orphaned? eg threads->new inside BEGIN or use */ |
11746 | if (PL_compcv && ! SvREFCNT(PL_compcv)) { | |
8c18bf38 | 11747 | (void)SvREFCNT_inc(PL_compcv); |
d2e2df35 MHM |
11748 | SAVEFREESV(PL_compcv); |
11749 | } | |
11750 | ||
1d7c1841 | 11751 | return my_perl; |
1d7c1841 GS |
11752 | } |
11753 | ||
1d7c1841 | 11754 | #endif /* USE_ITHREADS */ |
a0ae6670 | 11755 | |
9f4817db | 11756 | /* |
ccfc67b7 JH |
11757 | =head1 Unicode Support |
11758 | ||
9f4817db JH |
11759 | =for apidoc sv_recode_to_utf8 |
11760 | ||
5d170f3a JH |
11761 | The encoding is assumed to be an Encode object, on entry the PV |
11762 | of the sv is assumed to be octets in that encoding, and the sv | |
11763 | will be converted into Unicode (and UTF-8). | |
9f4817db | 11764 | |
5d170f3a JH |
11765 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
11766 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
11767 | an C<Encode::XS> Encoding object, bad things will happen. |
11768 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 11769 | |
5d170f3a | 11770 | The PV of the sv is returned. |
9f4817db | 11771 | |
5d170f3a JH |
11772 | =cut */ |
11773 | ||
11774 | char * | |
11775 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
11776 | { | |
975adce1 | 11777 | if (SvPOK(sv) && !SvUTF8(sv) && !IN_BYTES && SvROK(encoding)) { |
5b7ea690 JH |
11778 | SV *uni; |
11779 | STRLEN len; | |
23c2bb70 | 11780 | const char *s; |
5b7ea690 JH |
11781 | dSP; |
11782 | ENTER; | |
11783 | SAVETMPS; | |
975adce1 | 11784 | save_re_context(); |
5b7ea690 JH |
11785 | PUSHMARK(sp); |
11786 | EXTEND(SP, 3); | |
11787 | XPUSHs(encoding); | |
11788 | XPUSHs(sv); | |
f9893866 NIS |
11789 | /* |
11790 | NI-S 2002/07/09 | |
11791 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
11792 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means | |
11793 | remove converted chars from source. | |
11794 | ||
11795 | Both will default the value - let them. | |
11796 | ||
5b7ea690 | 11797 | XPUSHs(&PL_sv_yes); |
f9893866 | 11798 | */ |
5b7ea690 JH |
11799 | PUTBACK; |
11800 | call_method("decode", G_SCALAR); | |
11801 | SPAGAIN; | |
11802 | uni = POPs; | |
11803 | PUTBACK; | |
23c2bb70 | 11804 | s = SvPV_const(uni, len); |
fdac8c4b | 11805 | if (s != SvPVX_const(sv)) { |
5b7ea690 | 11806 | SvGROW(sv, len + 1); |
23c2bb70 | 11807 | Move(s, SvPVX(sv), len + 1, char); |
5b7ea690 | 11808 | SvCUR_set(sv, len); |
5b7ea690 JH |
11809 | } |
11810 | FREETMPS; | |
11811 | LEAVE; | |
5b7ea690 | 11812 | SvUTF8_on(sv); |
765545f3 | 11813 | return SvPVX(sv); |
f9893866 | 11814 | } |
765545f3 | 11815 | return SvPOKp(sv) ? SvPVX(sv) : NULL; |
9f4817db JH |
11816 | } |
11817 | ||
975adce1 JH |
11818 | /* |
11819 | =for apidoc sv_cat_decode | |
11820 | ||
11821 | The encoding is assumed to be an Encode object, the PV of the ssv is | |
11822 | assumed to be octets in that encoding and decoding the input starts | |
11823 | from the position which (PV + *offset) pointed to. The dsv will be | |
11824 | concatenated the decoded UTF-8 string from ssv. Decoding will terminate | |
11825 | when the string tstr appears in decoding output or the input ends on | |
11826 | the PV of the ssv. The value which the offset points will be modified | |
11827 | to the last input position on the ssv. | |
68795e93 | 11828 | |
975adce1 JH |
11829 | Returns TRUE if the terminator was found, else returns FALSE. |
11830 | ||
11831 | =cut */ | |
11832 | ||
11833 | bool | |
11834 | Perl_sv_cat_decode(pTHX_ SV *dsv, SV *encoding, | |
11835 | SV *ssv, int *offset, char *tstr, int tlen) | |
11836 | { | |
c04fee9e | 11837 | bool ret = FALSE; |
975adce1 | 11838 | if (SvPOK(ssv) && SvPOK(dsv) && SvROK(encoding) && offset) { |
975adce1 JH |
11839 | SV *offsv; |
11840 | dSP; | |
11841 | ENTER; | |
11842 | SAVETMPS; | |
11843 | save_re_context(); | |
11844 | PUSHMARK(sp); | |
11845 | EXTEND(SP, 6); | |
11846 | XPUSHs(encoding); | |
11847 | XPUSHs(dsv); | |
11848 | XPUSHs(ssv); | |
11849 | XPUSHs(offsv = sv_2mortal(newSViv(*offset))); | |
11850 | XPUSHs(sv_2mortal(newSVpvn(tstr, tlen))); | |
11851 | PUTBACK; | |
11852 | call_method("cat_decode", G_SCALAR); | |
11853 | SPAGAIN; | |
11854 | ret = SvTRUE(TOPs); | |
11855 | *offset = SvIV(offsv); | |
11856 | PUTBACK; | |
11857 | FREETMPS; | |
11858 | LEAVE; | |
975adce1 | 11859 | } |
c04fee9e JH |
11860 | else |
11861 | Perl_croak(aTHX_ "Invalid argument to sv_cat_decode"); | |
11862 | return ret; | |
975adce1 | 11863 | } |
f9893866 | 11864 | |
583439ab NC |
11865 | /* |
11866 | * Local variables: | |
11867 | * c-indentation-style: bsd | |
11868 | * c-basic-offset: 4 | |
11869 | * indent-tabs-mode: t | |
11870 | * End: | |
11871 | * | |
d8294a4d NC |
11872 | * ex: set ts=8 sts=4 sw=4 noet: |
11873 | */ |