Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
e6906430 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
f27f8384 | 4 | * 2000, 2001, 2002, 2003, 2004, 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 | ||
59 | Normally, this allocation is done using arenas, which are approximately | |
60 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
61 | in each arena is reserved, and is used to hold a link to the next arena. | |
62 | In the case of heads, the unused first slot also contains some flags and | |
63 | a note of the number of slots. Snaked through each arena chain is a | |
64 | linked list of free items; when this becomes empty, an extra arena is | |
65 | allocated and divided up into N items which are threaded into the free | |
66 | list. | |
645c22ef DM |
67 | |
68 | The following global variables are associated with arenas: | |
69 | ||
70 | PL_sv_arenaroot pointer to list of SV arenas | |
71 | PL_sv_root pointer to list of free SV structures | |
72 | ||
73 | PL_foo_arenaroot pointer to list of foo arenas, | |
74 | PL_foo_root pointer to list of free foo bodies | |
75 | ... for foo in xiv, xnv, xrv, xpv etc. | |
76 | ||
77 | Note that some of the larger and more rarely used body types (eg xpvio) | |
78 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
79 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
80 | with all items individually malloc()ed. In addition, a few SV heads are | |
81 | not allocated from an arena, but are instead directly created as static | |
82 | or auto variables, eg PL_sv_undef. | |
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 | ||
053fc874 GS |
161 | #define plant_SV(p) \ |
162 | STMT_START { \ | |
163 | SvANY(p) = (void *)PL_sv_root; \ | |
164 | SvFLAGS(p) = SVTYPEMASK; \ | |
165 | PL_sv_root = (p); \ | |
166 | --PL_sv_count; \ | |
167 | } STMT_END | |
a0d0e21e | 168 | |
fba3b22e | 169 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
170 | #define uproot_SV(p) \ |
171 | STMT_START { \ | |
172 | (p) = PL_sv_root; \ | |
173 | PL_sv_root = (SV*)SvANY(p); \ | |
174 | ++PL_sv_count; \ | |
175 | } STMT_END | |
176 | ||
645c22ef DM |
177 | |
178 | /* new_SV(): return a new, empty SV head */ | |
179 | ||
c240c76d JH |
180 | #ifdef DEBUG_LEAKING_SCALARS |
181 | /* provide a real function for a debugger to play with */ | |
182 | STATIC SV* | |
183 | S_new_SV(pTHX) | |
184 | { | |
185 | SV* sv; | |
186 | ||
187 | LOCK_SV_MUTEX; | |
188 | if (PL_sv_root) | |
189 | uproot_SV(sv); | |
190 | else | |
191 | sv = more_sv(); | |
192 | UNLOCK_SV_MUTEX; | |
193 | SvANY(sv) = 0; | |
194 | SvREFCNT(sv) = 1; | |
195 | SvFLAGS(sv) = 0; | |
196 | return sv; | |
197 | } | |
198 | # define new_SV(p) (p)=S_new_SV(aTHX) | |
199 | ||
200 | #else | |
201 | # define new_SV(p) \ | |
053fc874 GS |
202 | STMT_START { \ |
203 | LOCK_SV_MUTEX; \ | |
204 | if (PL_sv_root) \ | |
205 | uproot_SV(p); \ | |
206 | else \ | |
207 | (p) = more_sv(); \ | |
208 | UNLOCK_SV_MUTEX; \ | |
209 | SvANY(p) = 0; \ | |
210 | SvREFCNT(p) = 1; \ | |
211 | SvFLAGS(p) = 0; \ | |
212 | } STMT_END | |
c240c76d | 213 | #endif |
463ee0b2 | 214 | |
645c22ef DM |
215 | |
216 | /* del_SV(): return an empty SV head to the free list */ | |
217 | ||
a0d0e21e | 218 | #ifdef DEBUGGING |
4561caa4 | 219 | |
053fc874 GS |
220 | #define del_SV(p) \ |
221 | STMT_START { \ | |
222 | LOCK_SV_MUTEX; \ | |
aea4f609 | 223 | if (DEBUG_D_TEST) \ |
053fc874 GS |
224 | del_sv(p); \ |
225 | else \ | |
226 | plant_SV(p); \ | |
227 | UNLOCK_SV_MUTEX; \ | |
228 | } STMT_END | |
a0d0e21e | 229 | |
76e3520e | 230 | STATIC void |
cea2e8a9 | 231 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 232 | { |
aea4f609 | 233 | if (DEBUG_D_TEST) { |
4633a7c4 | 234 | SV* sva; |
a0d0e21e LW |
235 | SV* sv; |
236 | SV* svend; | |
237 | int ok = 0; | |
3280af22 | 238 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
239 | sv = sva + 1; |
240 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
241 | if (p >= sv && p < svend) |
242 | ok = 1; | |
243 | } | |
244 | if (!ok) { | |
0453d815 | 245 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 246 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
b035a42e NC |
247 | "Attempt to free non-arena SV: 0x%"UVxf |
248 | pTHX__FORMAT, PTR2UV(p) pTHX__VALUE); | |
a0d0e21e LW |
249 | return; |
250 | } | |
251 | } | |
4561caa4 | 252 | plant_SV(p); |
463ee0b2 | 253 | } |
a0d0e21e | 254 | |
4561caa4 CS |
255 | #else /* ! DEBUGGING */ |
256 | ||
257 | #define del_SV(p) plant_SV(p) | |
258 | ||
259 | #endif /* DEBUGGING */ | |
463ee0b2 | 260 | |
645c22ef DM |
261 | |
262 | /* | |
ccfc67b7 JH |
263 | =head1 SV Manipulation Functions |
264 | ||
645c22ef DM |
265 | =for apidoc sv_add_arena |
266 | ||
267 | Given a chunk of memory, link it to the head of the list of arenas, | |
268 | and split it into a list of free SVs. | |
269 | ||
270 | =cut | |
271 | */ | |
272 | ||
4633a7c4 | 273 | void |
864dbfa3 | 274 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 275 | { |
4633a7c4 | 276 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
277 | register SV* sv; |
278 | register SV* svend; | |
4633a7c4 LW |
279 | |
280 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 281 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
282 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
283 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
284 | ||
3280af22 NIS |
285 | PL_sv_arenaroot = sva; |
286 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
287 | |
288 | svend = &sva[SvREFCNT(sva) - 1]; | |
289 | sv = sva + 1; | |
463ee0b2 | 290 | while (sv < svend) { |
a0d0e21e | 291 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8b3a4b74 | 292 | SvREFCNT(sv) = 0; |
8990e307 | 293 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
294 | sv++; |
295 | } | |
296 | SvANY(sv) = 0; | |
4633a7c4 LW |
297 | SvFLAGS(sv) = SVTYPEMASK; |
298 | } | |
299 | ||
645c22ef DM |
300 | /* make some more SVs by adding another arena */ |
301 | ||
fba3b22e | 302 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 303 | STATIC SV* |
cea2e8a9 | 304 | S_more_sv(pTHX) |
4633a7c4 | 305 | { |
4561caa4 CS |
306 | register SV* sv; |
307 | ||
3280af22 NIS |
308 | if (PL_nice_chunk) { |
309 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
310 | PL_nice_chunk = Nullch; | |
30ad99e7 | 311 | PL_nice_chunk_size = 0; |
c07a80fd | 312 | } |
1edc1566 | 313 | else { |
314 | char *chunk; /* must use New here to match call to */ | |
315 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
316 | sv_add_arena(chunk, 1008, 0); | |
317 | } | |
4561caa4 CS |
318 | uproot_SV(sv); |
319 | return sv; | |
463ee0b2 LW |
320 | } |
321 | ||
b035a42e NC |
322 | /* visit(): call the named function for each non-free SV in the arenas |
323 | * whose flags field matches the flags/mask args. */ | |
645c22ef | 324 | |
5226ed68 | 325 | STATIC I32 |
b035a42e | 326 | S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask) |
8990e307 | 327 | { |
4633a7c4 | 328 | SV* sva; |
8990e307 LW |
329 | SV* sv; |
330 | register SV* svend; | |
5226ed68 | 331 | I32 visited = 0; |
8990e307 | 332 | |
3280af22 | 333 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 334 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 335 | for (sv = sva + 1; sv < svend; ++sv) { |
b035a42e NC |
336 | if (SvTYPE(sv) != SVTYPEMASK |
337 | && (sv->sv_flags & mask) == flags | |
338 | && SvREFCNT(sv)) | |
339 | { | |
acfe0abc | 340 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
341 | ++visited; |
342 | } | |
8990e307 LW |
343 | } |
344 | } | |
5226ed68 | 345 | return visited; |
8990e307 LW |
346 | } |
347 | ||
758a08c3 JH |
348 | #ifdef DEBUGGING |
349 | ||
645c22ef DM |
350 | /* called by sv_report_used() for each live SV */ |
351 | ||
352 | static void | |
acfe0abc | 353 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
354 | { |
355 | if (SvTYPE(sv) != SVTYPEMASK) { | |
356 | PerlIO_printf(Perl_debug_log, "****\n"); | |
357 | sv_dump(sv); | |
358 | } | |
359 | } | |
758a08c3 | 360 | #endif |
645c22ef DM |
361 | |
362 | /* | |
363 | =for apidoc sv_report_used | |
364 | ||
365 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
366 | ||
367 | =cut | |
368 | */ | |
369 | ||
8990e307 | 370 | void |
864dbfa3 | 371 | Perl_sv_report_used(pTHX) |
4561caa4 | 372 | { |
ff270d3a | 373 | #ifdef DEBUGGING |
b035a42e | 374 | visit(do_report_used, 0, 0); |
ff270d3a | 375 | #endif |
4561caa4 CS |
376 | } |
377 | ||
645c22ef DM |
378 | /* called by sv_clean_objs() for each live SV */ |
379 | ||
380 | static void | |
acfe0abc | 381 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
382 | { |
383 | SV* rv; | |
384 | ||
385 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
386 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
387 | if (SvWEAKREF(sv)) { | |
388 | sv_del_backref(sv); | |
389 | SvWEAKREF_off(sv); | |
390 | SvRV(sv) = 0; | |
391 | } else { | |
392 | SvROK_off(sv); | |
393 | SvRV(sv) = 0; | |
394 | SvREFCNT_dec(rv); | |
395 | } | |
396 | } | |
397 | ||
398 | /* XXX Might want to check arrays, etc. */ | |
399 | } | |
400 | ||
401 | /* called by sv_clean_objs() for each live SV */ | |
402 | ||
403 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
404 | static void | |
acfe0abc | 405 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
406 | { |
407 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
408 | if ( SvOBJECT(GvSV(sv)) || | |
409 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
410 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
411 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
412 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
413 | { | |
414 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
1f26b251 | 415 | SvFLAGS(sv) |= SVf_BREAK; |
645c22ef DM |
416 | SvREFCNT_dec(sv); |
417 | } | |
418 | } | |
419 | } | |
420 | #endif | |
421 | ||
422 | /* | |
423 | =for apidoc sv_clean_objs | |
424 | ||
425 | Attempt to destroy all objects not yet freed | |
426 | ||
427 | =cut | |
428 | */ | |
429 | ||
4561caa4 | 430 | void |
864dbfa3 | 431 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 432 | { |
3280af22 | 433 | PL_in_clean_objs = TRUE; |
b035a42e | 434 | visit(do_clean_objs, SVf_ROK, SVf_ROK); |
4561caa4 | 435 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 436 | /* some barnacles may yet remain, clinging to typeglobs */ |
b035a42e | 437 | visit(do_clean_named_objs, SVt_PVGV, SVTYPEMASK); |
4561caa4 | 438 | #endif |
3280af22 | 439 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
440 | } |
441 | ||
645c22ef DM |
442 | /* called by sv_clean_all() for each live SV */ |
443 | ||
444 | static void | |
acfe0abc | 445 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
446 | { |
447 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
448 | SvFLAGS(sv) |= SVf_BREAK; | |
449 | SvREFCNT_dec(sv); | |
450 | } | |
451 | ||
452 | /* | |
453 | =for apidoc sv_clean_all | |
454 | ||
455 | Decrement the refcnt of each remaining SV, possibly triggering a | |
456 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 457 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
458 | |
459 | =cut | |
460 | */ | |
461 | ||
5226ed68 | 462 | I32 |
864dbfa3 | 463 | Perl_sv_clean_all(pTHX) |
8990e307 | 464 | { |
5226ed68 | 465 | I32 cleaned; |
3280af22 | 466 | PL_in_clean_all = TRUE; |
b035a42e | 467 | cleaned = visit(do_clean_all, 0,0); |
3280af22 | 468 | PL_in_clean_all = FALSE; |
5226ed68 | 469 | return cleaned; |
8990e307 | 470 | } |
463ee0b2 | 471 | |
645c22ef DM |
472 | /* |
473 | =for apidoc sv_free_arenas | |
474 | ||
475 | Deallocate the memory used by all arenas. Note that all the individual SV | |
476 | heads and bodies within the arenas must already have been freed. | |
477 | ||
478 | =cut | |
479 | */ | |
480 | ||
4633a7c4 | 481 | void |
864dbfa3 | 482 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
483 | { |
484 | SV* sva; | |
485 | SV* svanext; | |
612f20c3 | 486 | XPV *arena, *arenanext; |
4633a7c4 LW |
487 | |
488 | /* Free arenas here, but be careful about fake ones. (We assume | |
489 | contiguity of the fake ones with the corresponding real ones.) */ | |
490 | ||
3280af22 | 491 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
492 | svanext = (SV*) SvANY(sva); |
493 | while (svanext && SvFAKE(svanext)) | |
494 | svanext = (SV*) SvANY(svanext); | |
495 | ||
496 | if (!SvFAKE(sva)) | |
1edc1566 | 497 | Safefree((void *)sva); |
4633a7c4 | 498 | } |
5f05dabc | 499 | |
612f20c3 GS |
500 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
501 | arenanext = (XPV*)arena->xpv_pv; | |
502 | Safefree(arena); | |
503 | } | |
504 | PL_xiv_arenaroot = 0; | |
d5aea225 | 505 | PL_xiv_root = 0; |
612f20c3 GS |
506 | |
507 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
508 | arenanext = (XPV*)arena->xpv_pv; | |
509 | Safefree(arena); | |
510 | } | |
511 | PL_xnv_arenaroot = 0; | |
d5aea225 | 512 | PL_xnv_root = 0; |
612f20c3 GS |
513 | |
514 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
515 | arenanext = (XPV*)arena->xpv_pv; | |
516 | Safefree(arena); | |
517 | } | |
518 | PL_xrv_arenaroot = 0; | |
d5aea225 | 519 | PL_xrv_root = 0; |
612f20c3 GS |
520 | |
521 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
522 | arenanext = (XPV*)arena->xpv_pv; | |
523 | Safefree(arena); | |
524 | } | |
525 | PL_xpv_arenaroot = 0; | |
d5aea225 | 526 | PL_xpv_root = 0; |
612f20c3 GS |
527 | |
528 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
529 | arenanext = (XPV*)arena->xpv_pv; | |
530 | Safefree(arena); | |
531 | } | |
532 | PL_xpviv_arenaroot = 0; | |
d5aea225 | 533 | PL_xpviv_root = 0; |
612f20c3 GS |
534 | |
535 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
536 | arenanext = (XPV*)arena->xpv_pv; | |
537 | Safefree(arena); | |
538 | } | |
539 | PL_xpvnv_arenaroot = 0; | |
d5aea225 | 540 | PL_xpvnv_root = 0; |
612f20c3 GS |
541 | |
542 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
543 | arenanext = (XPV*)arena->xpv_pv; | |
544 | Safefree(arena); | |
545 | } | |
546 | PL_xpvcv_arenaroot = 0; | |
d5aea225 | 547 | PL_xpvcv_root = 0; |
612f20c3 GS |
548 | |
549 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
550 | arenanext = (XPV*)arena->xpv_pv; | |
551 | Safefree(arena); | |
552 | } | |
553 | PL_xpvav_arenaroot = 0; | |
d5aea225 | 554 | PL_xpvav_root = 0; |
612f20c3 GS |
555 | |
556 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
557 | arenanext = (XPV*)arena->xpv_pv; | |
558 | Safefree(arena); | |
559 | } | |
560 | PL_xpvhv_arenaroot = 0; | |
d5aea225 | 561 | PL_xpvhv_root = 0; |
612f20c3 GS |
562 | |
563 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
564 | arenanext = (XPV*)arena->xpv_pv; | |
565 | Safefree(arena); | |
566 | } | |
567 | PL_xpvmg_arenaroot = 0; | |
d5aea225 | 568 | PL_xpvmg_root = 0; |
612f20c3 GS |
569 | |
570 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
571 | arenanext = (XPV*)arena->xpv_pv; | |
572 | Safefree(arena); | |
573 | } | |
574 | PL_xpvlv_arenaroot = 0; | |
d5aea225 | 575 | PL_xpvlv_root = 0; |
612f20c3 GS |
576 | |
577 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
578 | arenanext = (XPV*)arena->xpv_pv; | |
579 | Safefree(arena); | |
580 | } | |
581 | PL_xpvbm_arenaroot = 0; | |
d5aea225 | 582 | PL_xpvbm_root = 0; |
612f20c3 GS |
583 | |
584 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
585 | arenanext = (XPV*)arena->xpv_pv; | |
586 | Safefree(arena); | |
587 | } | |
588 | PL_he_arenaroot = 0; | |
d5aea225 | 589 | PL_he_root = 0; |
612f20c3 | 590 | |
3280af22 NIS |
591 | if (PL_nice_chunk) |
592 | Safefree(PL_nice_chunk); | |
593 | PL_nice_chunk = Nullch; | |
594 | PL_nice_chunk_size = 0; | |
595 | PL_sv_arenaroot = 0; | |
596 | PL_sv_root = 0; | |
4633a7c4 LW |
597 | } |
598 | ||
645c22ef DM |
599 | /* |
600 | =for apidoc report_uninit | |
601 | ||
602 | Print appropriate "Use of uninitialized variable" warning | |
603 | ||
604 | =cut | |
605 | */ | |
606 | ||
1d7c1841 GS |
607 | void |
608 | Perl_report_uninit(pTHX) | |
609 | { | |
610 | if (PL_op) | |
9014280d | 611 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
53e06cf0 | 612 | " in ", OP_DESC(PL_op)); |
1d7c1841 | 613 | else |
9014280d | 614 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, "", ""); |
1d7c1841 GS |
615 | } |
616 | ||
645c22ef DM |
617 | /* grab a new IV body from the free list, allocating more if necessary */ |
618 | ||
76e3520e | 619 | STATIC XPVIV* |
cea2e8a9 | 620 | S_new_xiv(pTHX) |
463ee0b2 | 621 | { |
ea7c11a3 | 622 | IV* xiv; |
cbe51380 GS |
623 | LOCK_SV_MUTEX; |
624 | if (!PL_xiv_root) | |
625 | more_xiv(); | |
626 | xiv = PL_xiv_root; | |
627 | /* | |
628 | * See comment in more_xiv() -- RAM. | |
629 | */ | |
630 | PL_xiv_root = *(IV**)xiv; | |
631 | UNLOCK_SV_MUTEX; | |
632 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
633 | } |
634 | ||
645c22ef DM |
635 | /* return an IV body to the free list */ |
636 | ||
76e3520e | 637 | STATIC void |
cea2e8a9 | 638 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 639 | { |
23e6a22f | 640 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 641 | LOCK_SV_MUTEX; |
3280af22 NIS |
642 | *(IV**)xiv = PL_xiv_root; |
643 | PL_xiv_root = xiv; | |
cbe51380 | 644 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
645 | } |
646 | ||
645c22ef DM |
647 | /* allocate another arena's worth of IV bodies */ |
648 | ||
cbe51380 | 649 | STATIC void |
cea2e8a9 | 650 | S_more_xiv(pTHX) |
463ee0b2 | 651 | { |
ea7c11a3 SM |
652 | register IV* xiv; |
653 | register IV* xivend; | |
8c52afec IZ |
654 | XPV* ptr; |
655 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
645c22ef | 656 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 657 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 658 | |
ea7c11a3 SM |
659 | xiv = (IV*) ptr; |
660 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
645c22ef | 661 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 662 | PL_xiv_root = xiv; |
463ee0b2 | 663 | while (xiv < xivend) { |
ea7c11a3 | 664 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
665 | xiv++; |
666 | } | |
ea7c11a3 | 667 | *(IV**)xiv = 0; |
463ee0b2 LW |
668 | } |
669 | ||
645c22ef DM |
670 | /* grab a new NV body from the free list, allocating more if necessary */ |
671 | ||
76e3520e | 672 | STATIC XPVNV* |
cea2e8a9 | 673 | S_new_xnv(pTHX) |
463ee0b2 | 674 | { |
65202027 | 675 | NV* xnv; |
cbe51380 GS |
676 | LOCK_SV_MUTEX; |
677 | if (!PL_xnv_root) | |
678 | more_xnv(); | |
679 | xnv = PL_xnv_root; | |
65202027 | 680 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
681 | UNLOCK_SV_MUTEX; |
682 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
683 | } |
684 | ||
645c22ef DM |
685 | /* return an NV body to the free list */ |
686 | ||
76e3520e | 687 | STATIC void |
cea2e8a9 | 688 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 689 | { |
65202027 | 690 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 691 | LOCK_SV_MUTEX; |
65202027 | 692 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 693 | PL_xnv_root = xnv; |
cbe51380 | 694 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
695 | } |
696 | ||
645c22ef DM |
697 | /* allocate another arena's worth of NV bodies */ |
698 | ||
cbe51380 | 699 | STATIC void |
cea2e8a9 | 700 | S_more_xnv(pTHX) |
463ee0b2 | 701 | { |
65202027 DS |
702 | register NV* xnv; |
703 | register NV* xnvend; | |
612f20c3 GS |
704 | XPV *ptr; |
705 | New(711, ptr, 1008/sizeof(XPV), XPV); | |
706 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; | |
707 | PL_xnv_arenaroot = ptr; | |
708 | ||
709 | xnv = (NV*) ptr; | |
65202027 DS |
710 | xnvend = &xnv[1008 / sizeof(NV) - 1]; |
711 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 712 | PL_xnv_root = xnv; |
463ee0b2 | 713 | while (xnv < xnvend) { |
65202027 | 714 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
715 | xnv++; |
716 | } | |
65202027 | 717 | *(NV**)xnv = 0; |
463ee0b2 LW |
718 | } |
719 | ||
645c22ef DM |
720 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
721 | ||
76e3520e | 722 | STATIC XRV* |
cea2e8a9 | 723 | S_new_xrv(pTHX) |
ed6116ce LW |
724 | { |
725 | XRV* xrv; | |
cbe51380 GS |
726 | LOCK_SV_MUTEX; |
727 | if (!PL_xrv_root) | |
728 | more_xrv(); | |
729 | xrv = PL_xrv_root; | |
730 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
731 | UNLOCK_SV_MUTEX; | |
732 | return xrv; | |
ed6116ce LW |
733 | } |
734 | ||
645c22ef DM |
735 | /* return a struct xrv to the free list */ |
736 | ||
76e3520e | 737 | STATIC void |
cea2e8a9 | 738 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 739 | { |
cbe51380 | 740 | LOCK_SV_MUTEX; |
3280af22 NIS |
741 | p->xrv_rv = (SV*)PL_xrv_root; |
742 | PL_xrv_root = p; | |
cbe51380 | 743 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
744 | } |
745 | ||
645c22ef DM |
746 | /* allocate another arena's worth of struct xrv */ |
747 | ||
cbe51380 | 748 | STATIC void |
cea2e8a9 | 749 | S_more_xrv(pTHX) |
ed6116ce | 750 | { |
ed6116ce LW |
751 | register XRV* xrv; |
752 | register XRV* xrvend; | |
612f20c3 GS |
753 | XPV *ptr; |
754 | New(712, ptr, 1008/sizeof(XPV), XPV); | |
755 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; | |
756 | PL_xrv_arenaroot = ptr; | |
757 | ||
758 | xrv = (XRV*) ptr; | |
ed6116ce | 759 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
612f20c3 GS |
760 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
761 | PL_xrv_root = xrv; | |
ed6116ce LW |
762 | while (xrv < xrvend) { |
763 | xrv->xrv_rv = (SV*)(xrv + 1); | |
764 | xrv++; | |
765 | } | |
766 | xrv->xrv_rv = 0; | |
ed6116ce LW |
767 | } |
768 | ||
645c22ef DM |
769 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
770 | ||
76e3520e | 771 | STATIC XPV* |
cea2e8a9 | 772 | S_new_xpv(pTHX) |
463ee0b2 LW |
773 | { |
774 | XPV* xpv; | |
cbe51380 GS |
775 | LOCK_SV_MUTEX; |
776 | if (!PL_xpv_root) | |
777 | more_xpv(); | |
778 | xpv = PL_xpv_root; | |
779 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
780 | UNLOCK_SV_MUTEX; | |
781 | return xpv; | |
463ee0b2 LW |
782 | } |
783 | ||
645c22ef DM |
784 | /* return a struct xpv to the free list */ |
785 | ||
76e3520e | 786 | STATIC void |
cea2e8a9 | 787 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 788 | { |
cbe51380 | 789 | LOCK_SV_MUTEX; |
3280af22 NIS |
790 | p->xpv_pv = (char*)PL_xpv_root; |
791 | PL_xpv_root = p; | |
cbe51380 | 792 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
793 | } |
794 | ||
645c22ef DM |
795 | /* allocate another arena's worth of struct xpv */ |
796 | ||
cbe51380 | 797 | STATIC void |
cea2e8a9 | 798 | S_more_xpv(pTHX) |
463ee0b2 | 799 | { |
463ee0b2 LW |
800 | register XPV* xpv; |
801 | register XPV* xpvend; | |
612f20c3 GS |
802 | New(713, xpv, 1008/sizeof(XPV), XPV); |
803 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; | |
804 | PL_xpv_arenaroot = xpv; | |
805 | ||
463ee0b2 | 806 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
612f20c3 | 807 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
808 | while (xpv < xpvend) { |
809 | xpv->xpv_pv = (char*)(xpv + 1); | |
810 | xpv++; | |
811 | } | |
812 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
813 | } |
814 | ||
645c22ef DM |
815 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
816 | ||
932e9ff9 VB |
817 | STATIC XPVIV* |
818 | S_new_xpviv(pTHX) | |
819 | { | |
820 | XPVIV* xpviv; | |
821 | LOCK_SV_MUTEX; | |
822 | if (!PL_xpviv_root) | |
823 | more_xpviv(); | |
824 | xpviv = PL_xpviv_root; | |
825 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
826 | UNLOCK_SV_MUTEX; | |
827 | return xpviv; | |
828 | } | |
829 | ||
645c22ef DM |
830 | /* return a struct xpviv to the free list */ |
831 | ||
932e9ff9 VB |
832 | STATIC void |
833 | S_del_xpviv(pTHX_ XPVIV *p) | |
834 | { | |
835 | LOCK_SV_MUTEX; | |
836 | p->xpv_pv = (char*)PL_xpviv_root; | |
837 | PL_xpviv_root = p; | |
838 | UNLOCK_SV_MUTEX; | |
839 | } | |
840 | ||
645c22ef DM |
841 | /* allocate another arena's worth of struct xpviv */ |
842 | ||
932e9ff9 VB |
843 | STATIC void |
844 | S_more_xpviv(pTHX) | |
845 | { | |
846 | register XPVIV* xpviv; | |
847 | register XPVIV* xpvivend; | |
612f20c3 GS |
848 | New(714, xpviv, 1008/sizeof(XPVIV), XPVIV); |
849 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; | |
850 | PL_xpviv_arenaroot = xpviv; | |
851 | ||
932e9ff9 | 852 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; |
612f20c3 | 853 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
854 | while (xpviv < xpvivend) { |
855 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
856 | xpviv++; | |
857 | } | |
858 | xpviv->xpv_pv = 0; | |
859 | } | |
860 | ||
645c22ef DM |
861 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
862 | ||
932e9ff9 VB |
863 | STATIC XPVNV* |
864 | S_new_xpvnv(pTHX) | |
865 | { | |
866 | XPVNV* xpvnv; | |
867 | LOCK_SV_MUTEX; | |
868 | if (!PL_xpvnv_root) | |
869 | more_xpvnv(); | |
870 | xpvnv = PL_xpvnv_root; | |
871 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
872 | UNLOCK_SV_MUTEX; | |
873 | return xpvnv; | |
874 | } | |
875 | ||
645c22ef DM |
876 | /* return a struct xpvnv to the free list */ |
877 | ||
932e9ff9 VB |
878 | STATIC void |
879 | S_del_xpvnv(pTHX_ XPVNV *p) | |
880 | { | |
881 | LOCK_SV_MUTEX; | |
882 | p->xpv_pv = (char*)PL_xpvnv_root; | |
883 | PL_xpvnv_root = p; | |
884 | UNLOCK_SV_MUTEX; | |
885 | } | |
886 | ||
645c22ef DM |
887 | /* allocate another arena's worth of struct xpvnv */ |
888 | ||
932e9ff9 VB |
889 | STATIC void |
890 | S_more_xpvnv(pTHX) | |
891 | { | |
892 | register XPVNV* xpvnv; | |
893 | register XPVNV* xpvnvend; | |
612f20c3 GS |
894 | New(715, xpvnv, 1008/sizeof(XPVNV), XPVNV); |
895 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; | |
896 | PL_xpvnv_arenaroot = xpvnv; | |
897 | ||
932e9ff9 | 898 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; |
612f20c3 | 899 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
900 | while (xpvnv < xpvnvend) { |
901 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
902 | xpvnv++; | |
903 | } | |
904 | xpvnv->xpv_pv = 0; | |
905 | } | |
906 | ||
645c22ef DM |
907 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
908 | ||
932e9ff9 VB |
909 | STATIC XPVCV* |
910 | S_new_xpvcv(pTHX) | |
911 | { | |
912 | XPVCV* xpvcv; | |
913 | LOCK_SV_MUTEX; | |
914 | if (!PL_xpvcv_root) | |
915 | more_xpvcv(); | |
916 | xpvcv = PL_xpvcv_root; | |
917 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
918 | UNLOCK_SV_MUTEX; | |
919 | return xpvcv; | |
920 | } | |
921 | ||
645c22ef DM |
922 | /* return a struct xpvcv to the free list */ |
923 | ||
932e9ff9 VB |
924 | STATIC void |
925 | S_del_xpvcv(pTHX_ XPVCV *p) | |
926 | { | |
927 | LOCK_SV_MUTEX; | |
928 | p->xpv_pv = (char*)PL_xpvcv_root; | |
929 | PL_xpvcv_root = p; | |
930 | UNLOCK_SV_MUTEX; | |
931 | } | |
932 | ||
645c22ef DM |
933 | /* allocate another arena's worth of struct xpvcv */ |
934 | ||
932e9ff9 VB |
935 | STATIC void |
936 | S_more_xpvcv(pTHX) | |
937 | { | |
938 | register XPVCV* xpvcv; | |
939 | register XPVCV* xpvcvend; | |
612f20c3 GS |
940 | New(716, xpvcv, 1008/sizeof(XPVCV), XPVCV); |
941 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; | |
942 | PL_xpvcv_arenaroot = xpvcv; | |
943 | ||
932e9ff9 | 944 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; |
612f20c3 | 945 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
946 | while (xpvcv < xpvcvend) { |
947 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
948 | xpvcv++; | |
949 | } | |
950 | xpvcv->xpv_pv = 0; | |
951 | } | |
952 | ||
645c22ef DM |
953 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
954 | ||
932e9ff9 VB |
955 | STATIC XPVAV* |
956 | S_new_xpvav(pTHX) | |
957 | { | |
958 | XPVAV* xpvav; | |
959 | LOCK_SV_MUTEX; | |
960 | if (!PL_xpvav_root) | |
961 | more_xpvav(); | |
962 | xpvav = PL_xpvav_root; | |
963 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
964 | UNLOCK_SV_MUTEX; | |
965 | return xpvav; | |
966 | } | |
967 | ||
645c22ef DM |
968 | /* return a struct xpvav to the free list */ |
969 | ||
932e9ff9 VB |
970 | STATIC void |
971 | S_del_xpvav(pTHX_ XPVAV *p) | |
972 | { | |
973 | LOCK_SV_MUTEX; | |
974 | p->xav_array = (char*)PL_xpvav_root; | |
975 | PL_xpvav_root = p; | |
976 | UNLOCK_SV_MUTEX; | |
977 | } | |
978 | ||
645c22ef DM |
979 | /* allocate another arena's worth of struct xpvav */ |
980 | ||
932e9ff9 VB |
981 | STATIC void |
982 | S_more_xpvav(pTHX) | |
983 | { | |
984 | register XPVAV* xpvav; | |
985 | register XPVAV* xpvavend; | |
612f20c3 GS |
986 | New(717, xpvav, 1008/sizeof(XPVAV), XPVAV); |
987 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; | |
988 | PL_xpvav_arenaroot = xpvav; | |
989 | ||
932e9ff9 | 990 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; |
612f20c3 | 991 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
992 | while (xpvav < xpvavend) { |
993 | xpvav->xav_array = (char*)(xpvav + 1); | |
994 | xpvav++; | |
995 | } | |
996 | xpvav->xav_array = 0; | |
997 | } | |
998 | ||
645c22ef DM |
999 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
1000 | ||
932e9ff9 VB |
1001 | STATIC XPVHV* |
1002 | S_new_xpvhv(pTHX) | |
1003 | { | |
1004 | XPVHV* xpvhv; | |
1005 | LOCK_SV_MUTEX; | |
1006 | if (!PL_xpvhv_root) | |
1007 | more_xpvhv(); | |
1008 | xpvhv = PL_xpvhv_root; | |
1009 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
1010 | UNLOCK_SV_MUTEX; | |
1011 | return xpvhv; | |
1012 | } | |
1013 | ||
645c22ef DM |
1014 | /* return a struct xpvhv to the free list */ |
1015 | ||
932e9ff9 VB |
1016 | STATIC void |
1017 | S_del_xpvhv(pTHX_ XPVHV *p) | |
1018 | { | |
1019 | LOCK_SV_MUTEX; | |
1020 | p->xhv_array = (char*)PL_xpvhv_root; | |
1021 | PL_xpvhv_root = p; | |
1022 | UNLOCK_SV_MUTEX; | |
1023 | } | |
1024 | ||
645c22ef DM |
1025 | /* allocate another arena's worth of struct xpvhv */ |
1026 | ||
932e9ff9 VB |
1027 | STATIC void |
1028 | S_more_xpvhv(pTHX) | |
1029 | { | |
1030 | register XPVHV* xpvhv; | |
1031 | register XPVHV* xpvhvend; | |
612f20c3 GS |
1032 | New(718, xpvhv, 1008/sizeof(XPVHV), XPVHV); |
1033 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; | |
1034 | PL_xpvhv_arenaroot = xpvhv; | |
1035 | ||
932e9ff9 | 1036 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; |
612f20c3 | 1037 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
1038 | while (xpvhv < xpvhvend) { |
1039 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
1040 | xpvhv++; | |
1041 | } | |
1042 | xpvhv->xhv_array = 0; | |
1043 | } | |
1044 | ||
645c22ef DM |
1045 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
1046 | ||
932e9ff9 VB |
1047 | STATIC XPVMG* |
1048 | S_new_xpvmg(pTHX) | |
1049 | { | |
1050 | XPVMG* xpvmg; | |
1051 | LOCK_SV_MUTEX; | |
1052 | if (!PL_xpvmg_root) | |
1053 | more_xpvmg(); | |
1054 | xpvmg = PL_xpvmg_root; | |
1055 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
1056 | UNLOCK_SV_MUTEX; | |
1057 | return xpvmg; | |
1058 | } | |
1059 | ||
645c22ef DM |
1060 | /* return a struct xpvmg to the free list */ |
1061 | ||
932e9ff9 VB |
1062 | STATIC void |
1063 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1064 | { | |
1065 | LOCK_SV_MUTEX; | |
1066 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1067 | PL_xpvmg_root = p; | |
1068 | UNLOCK_SV_MUTEX; | |
1069 | } | |
1070 | ||
645c22ef DM |
1071 | /* allocate another arena's worth of struct xpvmg */ |
1072 | ||
932e9ff9 VB |
1073 | STATIC void |
1074 | S_more_xpvmg(pTHX) | |
1075 | { | |
1076 | register XPVMG* xpvmg; | |
1077 | register XPVMG* xpvmgend; | |
612f20c3 GS |
1078 | New(719, xpvmg, 1008/sizeof(XPVMG), XPVMG); |
1079 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; | |
1080 | PL_xpvmg_arenaroot = xpvmg; | |
1081 | ||
932e9ff9 | 1082 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; |
612f20c3 | 1083 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1084 | while (xpvmg < xpvmgend) { |
1085 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1086 | xpvmg++; | |
1087 | } | |
1088 | xpvmg->xpv_pv = 0; | |
1089 | } | |
1090 | ||
645c22ef DM |
1091 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1092 | ||
932e9ff9 VB |
1093 | STATIC XPVLV* |
1094 | S_new_xpvlv(pTHX) | |
1095 | { | |
1096 | XPVLV* xpvlv; | |
1097 | LOCK_SV_MUTEX; | |
1098 | if (!PL_xpvlv_root) | |
1099 | more_xpvlv(); | |
1100 | xpvlv = PL_xpvlv_root; | |
1101 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1102 | UNLOCK_SV_MUTEX; | |
1103 | return xpvlv; | |
1104 | } | |
1105 | ||
645c22ef DM |
1106 | /* return a struct xpvlv to the free list */ |
1107 | ||
932e9ff9 VB |
1108 | STATIC void |
1109 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1110 | { | |
1111 | LOCK_SV_MUTEX; | |
1112 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1113 | PL_xpvlv_root = p; | |
1114 | UNLOCK_SV_MUTEX; | |
1115 | } | |
1116 | ||
645c22ef DM |
1117 | /* allocate another arena's worth of struct xpvlv */ |
1118 | ||
932e9ff9 VB |
1119 | STATIC void |
1120 | S_more_xpvlv(pTHX) | |
1121 | { | |
1122 | register XPVLV* xpvlv; | |
1123 | register XPVLV* xpvlvend; | |
612f20c3 GS |
1124 | New(720, xpvlv, 1008/sizeof(XPVLV), XPVLV); |
1125 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; | |
1126 | PL_xpvlv_arenaroot = xpvlv; | |
1127 | ||
932e9ff9 | 1128 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; |
612f20c3 | 1129 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1130 | while (xpvlv < xpvlvend) { |
1131 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1132 | xpvlv++; | |
1133 | } | |
1134 | xpvlv->xpv_pv = 0; | |
1135 | } | |
1136 | ||
645c22ef DM |
1137 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1138 | ||
932e9ff9 VB |
1139 | STATIC XPVBM* |
1140 | S_new_xpvbm(pTHX) | |
1141 | { | |
1142 | XPVBM* xpvbm; | |
1143 | LOCK_SV_MUTEX; | |
1144 | if (!PL_xpvbm_root) | |
1145 | more_xpvbm(); | |
1146 | xpvbm = PL_xpvbm_root; | |
1147 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1148 | UNLOCK_SV_MUTEX; | |
1149 | return xpvbm; | |
1150 | } | |
1151 | ||
645c22ef DM |
1152 | /* return a struct xpvbm to the free list */ |
1153 | ||
932e9ff9 VB |
1154 | STATIC void |
1155 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1156 | { | |
1157 | LOCK_SV_MUTEX; | |
1158 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1159 | PL_xpvbm_root = p; | |
1160 | UNLOCK_SV_MUTEX; | |
1161 | } | |
1162 | ||
645c22ef DM |
1163 | /* allocate another arena's worth of struct xpvbm */ |
1164 | ||
932e9ff9 VB |
1165 | STATIC void |
1166 | S_more_xpvbm(pTHX) | |
1167 | { | |
1168 | register XPVBM* xpvbm; | |
1169 | register XPVBM* xpvbmend; | |
612f20c3 GS |
1170 | New(721, xpvbm, 1008/sizeof(XPVBM), XPVBM); |
1171 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; | |
1172 | PL_xpvbm_arenaroot = xpvbm; | |
1173 | ||
932e9ff9 | 1174 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; |
612f20c3 | 1175 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1176 | while (xpvbm < xpvbmend) { |
1177 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1178 | xpvbm++; | |
1179 | } | |
1180 | xpvbm->xpv_pv = 0; | |
1181 | } | |
1182 | ||
2fe0f101 JH |
1183 | #define my_safemalloc(s) (void*)safemalloc(s) |
1184 | #define my_safefree(p) safefree((char*)p) | |
463ee0b2 | 1185 | |
d33b2eba | 1186 | #ifdef PURIFY |
463ee0b2 | 1187 | |
d33b2eba GS |
1188 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1189 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1190 | |
d33b2eba GS |
1191 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1192 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1193 | |
d33b2eba GS |
1194 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1195 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1196 | |
d33b2eba GS |
1197 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1198 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1199 | |
d33b2eba GS |
1200 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1201 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1202 | |
d33b2eba GS |
1203 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1204 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1205 | |
d33b2eba GS |
1206 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1207 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1208 | |
d33b2eba GS |
1209 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1210 | #define del_XPVAV(p) my_safefree(p) | |
1211 | ||
1212 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1213 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1214 | |
d33b2eba GS |
1215 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1216 | #define del_XPVMG(p) my_safefree(p) | |
1217 | ||
1218 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1219 | #define del_XPVLV(p) my_safefree(p) | |
1220 | ||
1221 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1222 | #define del_XPVBM(p) my_safefree(p) | |
1223 | ||
1224 | #else /* !PURIFY */ | |
1225 | ||
1226 | #define new_XIV() (void*)new_xiv() | |
1227 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1228 | ||
1229 | #define new_XNV() (void*)new_xnv() | |
1230 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1231 | |
d33b2eba GS |
1232 | #define new_XRV() (void*)new_xrv() |
1233 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1234 | |
d33b2eba GS |
1235 | #define new_XPV() (void*)new_xpv() |
1236 | #define del_XPV(p) del_xpv((XPV *)p) | |
1237 | ||
1238 | #define new_XPVIV() (void*)new_xpviv() | |
1239 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1240 | ||
1241 | #define new_XPVNV() (void*)new_xpvnv() | |
1242 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1243 | ||
1244 | #define new_XPVCV() (void*)new_xpvcv() | |
1245 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1246 | ||
1247 | #define new_XPVAV() (void*)new_xpvav() | |
1248 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1249 | ||
1250 | #define new_XPVHV() (void*)new_xpvhv() | |
1251 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1252 | |
d33b2eba GS |
1253 | #define new_XPVMG() (void*)new_xpvmg() |
1254 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1255 | ||
1256 | #define new_XPVLV() (void*)new_xpvlv() | |
1257 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1258 | ||
1259 | #define new_XPVBM() (void*)new_xpvbm() | |
1260 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1261 | ||
1262 | #endif /* PURIFY */ | |
9b94d1dd | 1263 | |
d33b2eba GS |
1264 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1265 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1266 | |
d33b2eba GS |
1267 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1268 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1269 | |
d33b2eba GS |
1270 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1271 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1272 | |
954c1994 GS |
1273 | /* |
1274 | =for apidoc sv_upgrade | |
1275 | ||
ff276b08 | 1276 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1277 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1278 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1279 | |
1280 | =cut | |
1281 | */ | |
1282 | ||
79072805 | 1283 | bool |
864dbfa3 | 1284 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1285 | { |
c04a4dfe JH |
1286 | char* pv = NULL; |
1287 | U32 cur = 0; | |
1288 | U32 len = 0; | |
1289 | IV iv = 0; | |
1290 | NV nv = 0.0; | |
1291 | MAGIC* magic = NULL; | |
1292 | HV* stash = Nullhv; | |
79072805 | 1293 | |
f130fd45 NIS |
1294 | if (mt != SVt_PV && SvREADONLY(sv) && SvFAKE(sv)) { |
1295 | sv_force_normal(sv); | |
1296 | } | |
1297 | ||
79072805 LW |
1298 | if (SvTYPE(sv) == mt) |
1299 | return TRUE; | |
1300 | ||
a5f75d66 AD |
1301 | if (mt < SVt_PVIV) |
1302 | (void)SvOOK_off(sv); | |
1303 | ||
79072805 LW |
1304 | switch (SvTYPE(sv)) { |
1305 | case SVt_NULL: | |
1306 | pv = 0; | |
1307 | cur = 0; | |
1308 | len = 0; | |
1309 | iv = 0; | |
1310 | nv = 0.0; | |
1311 | magic = 0; | |
1312 | stash = 0; | |
1313 | break; | |
79072805 LW |
1314 | case SVt_IV: |
1315 | pv = 0; | |
1316 | cur = 0; | |
1317 | len = 0; | |
463ee0b2 | 1318 | iv = SvIVX(sv); |
65202027 | 1319 | nv = (NV)SvIVX(sv); |
79072805 LW |
1320 | del_XIV(SvANY(sv)); |
1321 | magic = 0; | |
1322 | stash = 0; | |
ed6116ce | 1323 | if (mt == SVt_NV) |
463ee0b2 | 1324 | mt = SVt_PVNV; |
ed6116ce LW |
1325 | else if (mt < SVt_PVIV) |
1326 | mt = SVt_PVIV; | |
79072805 LW |
1327 | break; |
1328 | case SVt_NV: | |
1329 | pv = 0; | |
1330 | cur = 0; | |
1331 | len = 0; | |
463ee0b2 | 1332 | nv = SvNVX(sv); |
1bd302c3 | 1333 | iv = I_V(nv); |
79072805 LW |
1334 | magic = 0; |
1335 | stash = 0; | |
1336 | del_XNV(SvANY(sv)); | |
1337 | SvANY(sv) = 0; | |
ed6116ce | 1338 | if (mt < SVt_PVNV) |
79072805 LW |
1339 | mt = SVt_PVNV; |
1340 | break; | |
ed6116ce LW |
1341 | case SVt_RV: |
1342 | pv = (char*)SvRV(sv); | |
1343 | cur = 0; | |
1344 | len = 0; | |
56431972 RB |
1345 | iv = PTR2IV(pv); |
1346 | nv = PTR2NV(pv); | |
ed6116ce LW |
1347 | del_XRV(SvANY(sv)); |
1348 | magic = 0; | |
1349 | stash = 0; | |
1350 | break; | |
79072805 | 1351 | case SVt_PV: |
463ee0b2 | 1352 | pv = SvPVX(sv); |
79072805 LW |
1353 | cur = SvCUR(sv); |
1354 | len = SvLEN(sv); | |
1355 | iv = 0; | |
1356 | nv = 0.0; | |
1357 | magic = 0; | |
1358 | stash = 0; | |
1359 | del_XPV(SvANY(sv)); | |
748a9306 LW |
1360 | if (mt <= SVt_IV) |
1361 | mt = SVt_PVIV; | |
1362 | else if (mt == SVt_NV) | |
1363 | mt = SVt_PVNV; | |
79072805 LW |
1364 | break; |
1365 | case SVt_PVIV: | |
463ee0b2 | 1366 | pv = SvPVX(sv); |
79072805 LW |
1367 | cur = SvCUR(sv); |
1368 | len = SvLEN(sv); | |
463ee0b2 | 1369 | iv = SvIVX(sv); |
79072805 LW |
1370 | nv = 0.0; |
1371 | magic = 0; | |
1372 | stash = 0; | |
1373 | del_XPVIV(SvANY(sv)); | |
1374 | break; | |
1375 | case SVt_PVNV: | |
463ee0b2 | 1376 | pv = SvPVX(sv); |
79072805 LW |
1377 | cur = SvCUR(sv); |
1378 | len = SvLEN(sv); | |
463ee0b2 LW |
1379 | iv = SvIVX(sv); |
1380 | nv = SvNVX(sv); | |
79072805 LW |
1381 | magic = 0; |
1382 | stash = 0; | |
1383 | del_XPVNV(SvANY(sv)); | |
1384 | break; | |
1385 | case SVt_PVMG: | |
463ee0b2 | 1386 | pv = SvPVX(sv); |
79072805 LW |
1387 | cur = SvCUR(sv); |
1388 | len = SvLEN(sv); | |
463ee0b2 LW |
1389 | iv = SvIVX(sv); |
1390 | nv = SvNVX(sv); | |
79072805 LW |
1391 | magic = SvMAGIC(sv); |
1392 | stash = SvSTASH(sv); | |
1393 | del_XPVMG(SvANY(sv)); | |
1394 | break; | |
1395 | default: | |
cea2e8a9 | 1396 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1397 | } |
1398 | ||
1399 | switch (mt) { | |
1400 | case SVt_NULL: | |
cea2e8a9 | 1401 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1402 | case SVt_IV: |
1403 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 1404 | SvIVX(sv) = iv; |
79072805 LW |
1405 | break; |
1406 | case SVt_NV: | |
1407 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 1408 | SvNVX(sv) = nv; |
79072805 | 1409 | break; |
ed6116ce LW |
1410 | case SVt_RV: |
1411 | SvANY(sv) = new_XRV(); | |
1412 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 1413 | break; |
79072805 LW |
1414 | case SVt_PV: |
1415 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 1416 | SvPVX(sv) = pv; |
79072805 LW |
1417 | SvCUR(sv) = cur; |
1418 | SvLEN(sv) = len; | |
1419 | break; | |
1420 | case SVt_PVIV: | |
1421 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 1422 | SvPVX(sv) = pv; |
79072805 LW |
1423 | SvCUR(sv) = cur; |
1424 | SvLEN(sv) = len; | |
463ee0b2 | 1425 | SvIVX(sv) = iv; |
79072805 | 1426 | if (SvNIOK(sv)) |
a0d0e21e | 1427 | (void)SvIOK_on(sv); |
79072805 LW |
1428 | SvNOK_off(sv); |
1429 | break; | |
1430 | case SVt_PVNV: | |
1431 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 1432 | SvPVX(sv) = pv; |
79072805 LW |
1433 | SvCUR(sv) = cur; |
1434 | SvLEN(sv) = len; | |
463ee0b2 LW |
1435 | SvIVX(sv) = iv; |
1436 | SvNVX(sv) = nv; | |
79072805 LW |
1437 | break; |
1438 | case SVt_PVMG: | |
1439 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 1440 | SvPVX(sv) = pv; |
79072805 LW |
1441 | SvCUR(sv) = cur; |
1442 | SvLEN(sv) = len; | |
463ee0b2 LW |
1443 | SvIVX(sv) = iv; |
1444 | SvNVX(sv) = nv; | |
79072805 LW |
1445 | SvMAGIC(sv) = magic; |
1446 | SvSTASH(sv) = stash; | |
1447 | break; | |
1448 | case SVt_PVLV: | |
1449 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 1450 | SvPVX(sv) = pv; |
79072805 LW |
1451 | SvCUR(sv) = cur; |
1452 | SvLEN(sv) = len; | |
463ee0b2 LW |
1453 | SvIVX(sv) = iv; |
1454 | SvNVX(sv) = nv; | |
79072805 LW |
1455 | SvMAGIC(sv) = magic; |
1456 | SvSTASH(sv) = stash; | |
1457 | LvTARGOFF(sv) = 0; | |
1458 | LvTARGLEN(sv) = 0; | |
1459 | LvTARG(sv) = 0; | |
1460 | LvTYPE(sv) = 0; | |
1461 | break; | |
1462 | case SVt_PVAV: | |
1463 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
1464 | if (pv) |
1465 | Safefree(pv); | |
2304df62 | 1466 | SvPVX(sv) = 0; |
d1bf51dd | 1467 | AvMAX(sv) = -1; |
93965878 | 1468 | AvFILLp(sv) = -1; |
463ee0b2 LW |
1469 | SvIVX(sv) = 0; |
1470 | SvNVX(sv) = 0.0; | |
1471 | SvMAGIC(sv) = magic; | |
1472 | SvSTASH(sv) = stash; | |
1473 | AvALLOC(sv) = 0; | |
79072805 LW |
1474 | AvARYLEN(sv) = 0; |
1475 | AvFLAGS(sv) = 0; | |
1476 | break; | |
1477 | case SVt_PVHV: | |
1478 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1479 | if (pv) |
1480 | Safefree(pv); | |
1481 | SvPVX(sv) = 0; | |
1482 | HvFILL(sv) = 0; | |
1483 | HvMAX(sv) = 0; | |
8aacddc1 NIS |
1484 | HvTOTALKEYS(sv) = 0; |
1485 | HvPLACEHOLDERS(sv) = 0; | |
79072805 LW |
1486 | SvMAGIC(sv) = magic; |
1487 | SvSTASH(sv) = stash; | |
79072805 LW |
1488 | HvRITER(sv) = 0; |
1489 | HvEITER(sv) = 0; | |
1490 | HvPMROOT(sv) = 0; | |
1491 | HvNAME(sv) = 0; | |
79072805 LW |
1492 | break; |
1493 | case SVt_PVCV: | |
1494 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1495 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1496 | SvPVX(sv) = pv; |
79072805 LW |
1497 | SvCUR(sv) = cur; |
1498 | SvLEN(sv) = len; | |
463ee0b2 LW |
1499 | SvIVX(sv) = iv; |
1500 | SvNVX(sv) = nv; | |
79072805 LW |
1501 | SvMAGIC(sv) = magic; |
1502 | SvSTASH(sv) = stash; | |
79072805 LW |
1503 | break; |
1504 | case SVt_PVGV: | |
1505 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1506 | SvPVX(sv) = pv; |
79072805 LW |
1507 | SvCUR(sv) = cur; |
1508 | SvLEN(sv) = len; | |
463ee0b2 LW |
1509 | SvIVX(sv) = iv; |
1510 | SvNVX(sv) = nv; | |
79072805 LW |
1511 | SvMAGIC(sv) = magic; |
1512 | SvSTASH(sv) = stash; | |
93a17b20 | 1513 | GvGP(sv) = 0; |
79072805 LW |
1514 | GvNAME(sv) = 0; |
1515 | GvNAMELEN(sv) = 0; | |
1516 | GvSTASH(sv) = 0; | |
a5f75d66 | 1517 | GvFLAGS(sv) = 0; |
79072805 LW |
1518 | break; |
1519 | case SVt_PVBM: | |
1520 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1521 | SvPVX(sv) = pv; |
79072805 LW |
1522 | SvCUR(sv) = cur; |
1523 | SvLEN(sv) = len; | |
463ee0b2 LW |
1524 | SvIVX(sv) = iv; |
1525 | SvNVX(sv) = nv; | |
79072805 LW |
1526 | SvMAGIC(sv) = magic; |
1527 | SvSTASH(sv) = stash; | |
1528 | BmRARE(sv) = 0; | |
1529 | BmUSEFUL(sv) = 0; | |
1530 | BmPREVIOUS(sv) = 0; | |
1531 | break; | |
1532 | case SVt_PVFM: | |
1533 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1534 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1535 | SvPVX(sv) = pv; |
79072805 LW |
1536 | SvCUR(sv) = cur; |
1537 | SvLEN(sv) = len; | |
463ee0b2 LW |
1538 | SvIVX(sv) = iv; |
1539 | SvNVX(sv) = nv; | |
79072805 LW |
1540 | SvMAGIC(sv) = magic; |
1541 | SvSTASH(sv) = stash; | |
79072805 | 1542 | break; |
8990e307 LW |
1543 | case SVt_PVIO: |
1544 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1545 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1546 | SvPVX(sv) = pv; |
1547 | SvCUR(sv) = cur; | |
1548 | SvLEN(sv) = len; | |
1549 | SvIVX(sv) = iv; | |
1550 | SvNVX(sv) = nv; | |
1551 | SvMAGIC(sv) = magic; | |
1552 | SvSTASH(sv) = stash; | |
85e6fe83 | 1553 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1554 | break; |
1555 | } | |
1556 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1557 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1558 | return TRUE; |
1559 | } | |
1560 | ||
645c22ef DM |
1561 | /* |
1562 | =for apidoc sv_backoff | |
1563 | ||
1564 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1565 | wrapper instead. | |
1566 | ||
1567 | =cut | |
1568 | */ | |
1569 | ||
79072805 | 1570 | int |
864dbfa3 | 1571 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1572 | { |
1573 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1574 | if (SvIVX(sv)) { |
1575 | char *s = SvPVX(sv); | |
1576 | SvLEN(sv) += SvIVX(sv); | |
1577 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1578 | SvIV_set(sv, 0); |
463ee0b2 | 1579 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1580 | } |
1581 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1582 | return 0; |
79072805 LW |
1583 | } |
1584 | ||
954c1994 GS |
1585 | /* |
1586 | =for apidoc sv_grow | |
1587 | ||
645c22ef DM |
1588 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1589 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1590 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1591 | |
1592 | =cut | |
1593 | */ | |
1594 | ||
79072805 | 1595 | char * |
864dbfa3 | 1596 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1597 | { |
1598 | register char *s; | |
1599 | ||
54f0641b NIS |
1600 | |
1601 | ||
55497cff | 1602 | #ifdef HAS_64K_LIMIT |
79072805 | 1603 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1604 | PerlIO_printf(Perl_debug_log, |
1605 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1606 | my_exit(1); |
1607 | } | |
55497cff | 1608 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1609 | if (SvROK(sv)) |
1610 | sv_unref(sv); | |
79072805 LW |
1611 | if (SvTYPE(sv) < SVt_PV) { |
1612 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1613 | s = SvPVX(sv); |
79072805 LW |
1614 | } |
1615 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1616 | sv_backoff(sv); | |
463ee0b2 | 1617 | s = SvPVX(sv); |
79072805 LW |
1618 | if (newlen > SvLEN(sv)) |
1619 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1620 | #ifdef HAS_64K_LIMIT |
1621 | if (newlen >= 0x10000) | |
1622 | newlen = 0xFFFF; | |
1623 | #endif | |
79072805 LW |
1624 | } |
1625 | else | |
463ee0b2 | 1626 | s = SvPVX(sv); |
54f0641b | 1627 | |
79072805 | 1628 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1629 | if (SvLEN(sv) && s) { |
2fe0f101 | 1630 | #ifdef MYMALLOC |
8d6dde3e IZ |
1631 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1632 | if (newlen <= l) { | |
1633 | SvLEN_set(sv, l); | |
1634 | return s; | |
1635 | } else | |
c70c8a0a | 1636 | #endif |
79072805 | 1637 | Renew(s,newlen,char); |
8d6dde3e | 1638 | } |
4e83176d | 1639 | else { |
ee5f0761 AMS |
1640 | /* sv_force_normal_flags() must not try to unshare the new |
1641 | PVX we allocate below. AMS 20010713 */ | |
4e83176d | 1642 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
4e83176d AMS |
1643 | SvFAKE_off(sv); |
1644 | SvREADONLY_off(sv); | |
4e83176d AMS |
1645 | } |
1646 | New(703, s, newlen, char); | |
40565179 | 1647 | if (SvPVX(sv) && SvCUR(sv)) { |
54f0641b | 1648 | Move(SvPVX(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); |
40565179 | 1649 | } |
4e83176d | 1650 | } |
79072805 LW |
1651 | SvPV_set(sv, s); |
1652 | SvLEN_set(sv, newlen); | |
1653 | } | |
1654 | return s; | |
1655 | } | |
1656 | ||
954c1994 GS |
1657 | /* |
1658 | =for apidoc sv_setiv | |
1659 | ||
645c22ef DM |
1660 | Copies an integer into the given SV, upgrading first if necessary. |
1661 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1662 | |
1663 | =cut | |
1664 | */ | |
1665 | ||
79072805 | 1666 | void |
864dbfa3 | 1667 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1668 | { |
2213622d | 1669 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1670 | switch (SvTYPE(sv)) { |
1671 | case SVt_NULL: | |
79072805 | 1672 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1673 | break; |
1674 | case SVt_NV: | |
1675 | sv_upgrade(sv, SVt_PVNV); | |
1676 | break; | |
ed6116ce | 1677 | case SVt_RV: |
463ee0b2 | 1678 | case SVt_PV: |
79072805 | 1679 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1680 | break; |
a0d0e21e LW |
1681 | |
1682 | case SVt_PVGV: | |
a0d0e21e LW |
1683 | case SVt_PVAV: |
1684 | case SVt_PVHV: | |
1685 | case SVt_PVCV: | |
1686 | case SVt_PVFM: | |
1687 | case SVt_PVIO: | |
411caa50 | 1688 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1689 | OP_DESC(PL_op)); |
463ee0b2 | 1690 | } |
a0d0e21e | 1691 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1692 | SvIVX(sv) = i; |
463ee0b2 | 1693 | SvTAINT(sv); |
79072805 LW |
1694 | } |
1695 | ||
954c1994 GS |
1696 | /* |
1697 | =for apidoc sv_setiv_mg | |
1698 | ||
1699 | Like C<sv_setiv>, but also handles 'set' magic. | |
1700 | ||
1701 | =cut | |
1702 | */ | |
1703 | ||
79072805 | 1704 | void |
864dbfa3 | 1705 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1706 | { |
1707 | sv_setiv(sv,i); | |
1708 | SvSETMAGIC(sv); | |
1709 | } | |
1710 | ||
954c1994 GS |
1711 | /* |
1712 | =for apidoc sv_setuv | |
1713 | ||
645c22ef DM |
1714 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1715 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1716 | |
1717 | =cut | |
1718 | */ | |
1719 | ||
ef50df4b | 1720 | void |
864dbfa3 | 1721 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1722 | { |
55ada374 NC |
1723 | /* With these two if statements: |
1724 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1725 | |
55ada374 NC |
1726 | without |
1727 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1728 | |
55ada374 NC |
1729 | If you wish to remove them, please benchmark to see what the effect is |
1730 | */ | |
28e5dec8 JH |
1731 | if (u <= (UV)IV_MAX) { |
1732 | sv_setiv(sv, (IV)u); | |
1733 | return; | |
1734 | } | |
25da4f38 IZ |
1735 | sv_setiv(sv, 0); |
1736 | SvIsUV_on(sv); | |
1737 | SvUVX(sv) = u; | |
55497cff | 1738 | } |
1739 | ||
954c1994 GS |
1740 | /* |
1741 | =for apidoc sv_setuv_mg | |
1742 | ||
1743 | Like C<sv_setuv>, but also handles 'set' magic. | |
1744 | ||
1745 | =cut | |
1746 | */ | |
1747 | ||
55497cff | 1748 | void |
864dbfa3 | 1749 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1750 | { |
55ada374 NC |
1751 | /* With these two if statements: |
1752 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1753 | |
55ada374 NC |
1754 | without |
1755 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1756 | |
55ada374 NC |
1757 | If you wish to remove them, please benchmark to see what the effect is |
1758 | */ | |
28e5dec8 JH |
1759 | if (u <= (UV)IV_MAX) { |
1760 | sv_setiv(sv, (IV)u); | |
1761 | } else { | |
1762 | sv_setiv(sv, 0); | |
1763 | SvIsUV_on(sv); | |
1764 | sv_setuv(sv,u); | |
1765 | } | |
ef50df4b GS |
1766 | SvSETMAGIC(sv); |
1767 | } | |
1768 | ||
954c1994 GS |
1769 | /* |
1770 | =for apidoc sv_setnv | |
1771 | ||
645c22ef DM |
1772 | Copies a double into the given SV, upgrading first if necessary. |
1773 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1774 | |
1775 | =cut | |
1776 | */ | |
1777 | ||
ef50df4b | 1778 | void |
65202027 | 1779 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1780 | { |
2213622d | 1781 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1782 | switch (SvTYPE(sv)) { |
1783 | case SVt_NULL: | |
1784 | case SVt_IV: | |
79072805 | 1785 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1786 | break; |
a0d0e21e LW |
1787 | case SVt_RV: |
1788 | case SVt_PV: | |
1789 | case SVt_PVIV: | |
79072805 | 1790 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1791 | break; |
827b7e14 | 1792 | |
a0d0e21e | 1793 | case SVt_PVGV: |
a0d0e21e LW |
1794 | case SVt_PVAV: |
1795 | case SVt_PVHV: | |
1796 | case SVt_PVCV: | |
1797 | case SVt_PVFM: | |
1798 | case SVt_PVIO: | |
411caa50 | 1799 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1800 | OP_NAME(PL_op)); |
79072805 | 1801 | } |
463ee0b2 | 1802 | SvNVX(sv) = num; |
a0d0e21e | 1803 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1804 | SvTAINT(sv); |
79072805 LW |
1805 | } |
1806 | ||
954c1994 GS |
1807 | /* |
1808 | =for apidoc sv_setnv_mg | |
1809 | ||
1810 | Like C<sv_setnv>, but also handles 'set' magic. | |
1811 | ||
1812 | =cut | |
1813 | */ | |
1814 | ||
ef50df4b | 1815 | void |
65202027 | 1816 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1817 | { |
1818 | sv_setnv(sv,num); | |
1819 | SvSETMAGIC(sv); | |
1820 | } | |
1821 | ||
645c22ef DM |
1822 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1823 | * printable version of the offending string | |
1824 | */ | |
1825 | ||
76e3520e | 1826 | STATIC void |
cea2e8a9 | 1827 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1828 | { |
94463019 JH |
1829 | SV *dsv; |
1830 | char tmpbuf[64]; | |
1831 | char *pv; | |
1832 | ||
1833 | if (DO_UTF8(sv)) { | |
1834 | dsv = sv_2mortal(newSVpv("", 0)); | |
1835 | pv = sv_uni_display(dsv, sv, 10, 0); | |
1836 | } else { | |
1837 | char *d = tmpbuf; | |
1838 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1839 | /* each *s can expand to 4 chars + "...\0", | |
1840 | i.e. need room for 8 chars */ | |
ecdeb87c | 1841 | |
94463019 JH |
1842 | char *s, *end; |
1843 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
1844 | int ch = *s & 0xFF; | |
1845 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1846 | *d++ = 'M'; | |
1847 | *d++ = '-'; | |
1848 | ch &= 127; | |
1849 | } | |
1850 | if (ch == '\n') { | |
1851 | *d++ = '\\'; | |
1852 | *d++ = 'n'; | |
1853 | } | |
1854 | else if (ch == '\r') { | |
1855 | *d++ = '\\'; | |
1856 | *d++ = 'r'; | |
1857 | } | |
1858 | else if (ch == '\f') { | |
1859 | *d++ = '\\'; | |
1860 | *d++ = 'f'; | |
1861 | } | |
1862 | else if (ch == '\\') { | |
1863 | *d++ = '\\'; | |
1864 | *d++ = '\\'; | |
1865 | } | |
1866 | else if (ch == '\0') { | |
1867 | *d++ = '\\'; | |
1868 | *d++ = '0'; | |
1869 | } | |
1870 | else if (isPRINT_LC(ch)) | |
1871 | *d++ = ch; | |
1872 | else { | |
1873 | *d++ = '^'; | |
1874 | *d++ = toCTRL(ch); | |
1875 | } | |
1876 | } | |
1877 | if (s < end) { | |
1878 | *d++ = '.'; | |
1879 | *d++ = '.'; | |
1880 | *d++ = '.'; | |
1881 | } | |
1882 | *d = '\0'; | |
1883 | pv = tmpbuf; | |
a0d0e21e | 1884 | } |
a0d0e21e | 1885 | |
533c011a | 1886 | if (PL_op) |
9014280d | 1887 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1888 | "Argument \"%s\" isn't numeric in %s", pv, |
1889 | OP_DESC(PL_op)); | |
a0d0e21e | 1890 | else |
9014280d | 1891 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1892 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1893 | } |
1894 | ||
c2988b20 NC |
1895 | /* |
1896 | =for apidoc looks_like_number | |
1897 | ||
645c22ef DM |
1898 | Test if the content of an SV looks like a number (or is a number). |
1899 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1900 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1901 | |
1902 | =cut | |
1903 | */ | |
1904 | ||
1905 | I32 | |
1906 | Perl_looks_like_number(pTHX_ SV *sv) | |
1907 | { | |
1908 | register char *sbegin; | |
1909 | STRLEN len; | |
1910 | ||
1911 | if (SvPOK(sv)) { | |
1912 | sbegin = SvPVX(sv); | |
1913 | len = SvCUR(sv); | |
1914 | } | |
1915 | else if (SvPOKp(sv)) | |
1916 | sbegin = SvPV(sv, len); | |
1917 | else | |
fc3d430d | 1918 | return SvFLAGS(sv) & (SVf_NOK|SVp_NOK|SVf_IOK|SVp_IOK); |
c2988b20 NC |
1919 | return grok_number(sbegin, len, NULL); |
1920 | } | |
25da4f38 IZ |
1921 | |
1922 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1923 | until proven guilty, assume that things are not that bad... */ | |
1924 | ||
645c22ef DM |
1925 | /* |
1926 | NV_PRESERVES_UV: | |
1927 | ||
1928 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1929 | an IV (an assumption perl has been based on to date) it becomes necessary |
1930 | to remove the assumption that the NV always carries enough precision to | |
1931 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1932 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1933 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1934 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1935 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1936 | conversion where precision was lost and IV/UV/NV slots that have a | |
1937 | valid conversion which has lost no precision | |
645c22ef | 1938 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1939 | would lose precision, the precise conversion (or differently |
1940 | imprecise conversion) is also performed and cached, to prevent | |
1941 | requests for different numeric formats on the same SV causing | |
1942 | lossy conversion chains. (lossless conversion chains are perfectly | |
1943 | acceptable (still)) | |
1944 | ||
1945 | ||
1946 | flags are used: | |
1947 | SvIOKp is true if the IV slot contains a valid value | |
1948 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1949 | SvNOKp is true if the NV slot contains a valid value | |
1950 | SvNOK is true only if the NV value is accurate | |
1951 | ||
1952 | so | |
645c22ef | 1953 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1954 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1955 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1956 | SV as IOK NOKp (ie not NOK). | |
1957 | ||
645c22ef | 1958 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1959 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1960 | would, cache both conversions, flag similarly. | |
1961 | ||
1962 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1963 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1964 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1965 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1966 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1967 | |
645c22ef DM |
1968 | The benefit of this is that operations such as pp_add know that if |
1969 | SvIOK is true for both left and right operands, then integer addition | |
1970 | can be used instead of floating point (for cases where the result won't | |
1971 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1972 | loss of precision compared with integer addition. |
1973 | ||
1974 | * making IV and NV equal status should make maths accurate on 64 bit | |
1975 | platforms | |
1976 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 1977 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
1978 | looking for SvIOK and checking for overflow will not outweigh the |
1979 | fp to integer speedup) | |
1980 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
1981 | values, as the change from SvIOK to SvIOKp will cause a call into | |
1982 | sv_2iv each time rather than a macro access direct to the IV slot | |
1983 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 1984 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
1985 | |
1986 | #################################################################### | |
645c22ef DM |
1987 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
1988 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
1989 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
1990 | #################################################################### |
1991 | ||
645c22ef | 1992 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
1993 | performance ratio. |
1994 | */ | |
1995 | ||
1996 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
1997 | # define IS_NUMBER_UNDERFLOW_IV 1 |
1998 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
1999 | # define IS_NUMBER_IV_AND_UV 2 | |
2000 | # define IS_NUMBER_OVERFLOW_IV 4 | |
2001 | # define IS_NUMBER_OVERFLOW_UV 5 | |
2002 | ||
2003 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
2004 | |
2005 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
2006 | STATIC int | |
645c22ef | 2007 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 2008 | { |
1779d84d | 2009 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%"NVgf" inttype=%"UVXf"\n", SvPVX(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); |
28e5dec8 JH |
2010 | if (SvNVX(sv) < (NV)IV_MIN) { |
2011 | (void)SvIOKp_on(sv); | |
2012 | (void)SvNOK_on(sv); | |
2013 | SvIVX(sv) = IV_MIN; | |
2014 | return IS_NUMBER_UNDERFLOW_IV; | |
2015 | } | |
2016 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2017 | (void)SvIOKp_on(sv); | |
2018 | (void)SvNOK_on(sv); | |
2019 | SvIsUV_on(sv); | |
2020 | SvUVX(sv) = UV_MAX; | |
2021 | return IS_NUMBER_OVERFLOW_UV; | |
2022 | } | |
c2988b20 NC |
2023 | (void)SvIOKp_on(sv); |
2024 | (void)SvNOK_on(sv); | |
2025 | /* Can't use strtol etc to convert this string. (See truth table in | |
2026 | sv_2iv */ | |
2027 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
2028 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2029 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2030 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
2031 | } else { | |
2032 | /* Integer is imprecise. NOK, IOKp */ | |
2033 | } | |
2034 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
2035 | } | |
2036 | SvIsUV_on(sv); | |
2037 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2038 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2039 | if (SvUVX(sv) == UV_MAX) { | |
2040 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
2041 | possibly be preserved by NV. Hence, it must be overflow. | |
2042 | NOK, IOKp */ | |
2043 | return IS_NUMBER_OVERFLOW_UV; | |
2044 | } | |
2045 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
2046 | } else { | |
2047 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 2048 | } |
c2988b20 | 2049 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 2050 | } |
645c22ef DM |
2051 | #endif /* !NV_PRESERVES_UV*/ |
2052 | ||
2053 | /* | |
2054 | =for apidoc sv_2iv | |
2055 | ||
2056 | Return the integer value of an SV, doing any necessary string conversion, | |
2057 | magic etc. Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
2058 | ||
2059 | =cut | |
2060 | */ | |
28e5dec8 | 2061 | |
a0d0e21e | 2062 | IV |
864dbfa3 | 2063 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
2064 | { |
2065 | if (!sv) | |
2066 | return 0; | |
8990e307 | 2067 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2068 | mg_get(sv); |
2069 | if (SvIOKp(sv)) | |
2070 | return SvIVX(sv); | |
748a9306 | 2071 | if (SvNOKp(sv)) { |
25da4f38 | 2072 | return I_V(SvNVX(sv)); |
748a9306 | 2073 | } |
36477c24 | 2074 | if (SvPOKp(sv) && SvLEN(sv)) |
2075 | return asIV(sv); | |
3fe9a6f1 | 2076 | if (!SvROK(sv)) { |
d008e5eb | 2077 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2078 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2079 | report_uninit(); |
c6ee37c5 | 2080 | } |
36477c24 | 2081 | return 0; |
3fe9a6f1 | 2082 | } |
463ee0b2 | 2083 | } |
ed6116ce | 2084 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2085 | if (SvROK(sv)) { |
a0d0e21e | 2086 | SV* tmpstr; |
1554e226 | 2087 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2088 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2089 | return SvIV(tmpstr); |
56431972 | 2090 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2091 | } |
47deb5e7 NIS |
2092 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2093 | sv_force_normal(sv); | |
2094 | } | |
0336b60e | 2095 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2096 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2097 | report_uninit(); |
ed6116ce LW |
2098 | return 0; |
2099 | } | |
79072805 | 2100 | } |
25da4f38 IZ |
2101 | if (SvIOKp(sv)) { |
2102 | if (SvIsUV(sv)) { | |
2103 | return (IV)(SvUVX(sv)); | |
2104 | } | |
2105 | else { | |
2106 | return SvIVX(sv); | |
2107 | } | |
463ee0b2 | 2108 | } |
748a9306 | 2109 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2110 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2111 | * without also getting a cached IV/UV from it at the same time | |
2112 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2113 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2114 | |
2115 | if (SvTYPE(sv) == SVt_NV) | |
2116 | sv_upgrade(sv, SVt_PVNV); | |
2117 | ||
28e5dec8 JH |
2118 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2119 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2120 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2121 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2122 | cases go to UV */ | |
2123 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
748a9306 | 2124 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2125 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2126 | #ifndef NV_PRESERVES_UV | |
2127 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2128 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2129 | /* Don't flag it as "accurately an integer" if the number | |
2130 | came from a (by definition imprecise) NV operation, and | |
2131 | we're outside the range of NV integer precision */ | |
2132 | #endif | |
2133 | ) { | |
2134 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2135 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2136 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2137 | PTR2UV(sv), |
2138 | SvNVX(sv), | |
2139 | SvIVX(sv))); | |
2140 | ||
2141 | } else { | |
2142 | /* IV not precise. No need to convert from PV, as NV | |
2143 | conversion would already have cached IV if it detected | |
2144 | that PV->IV would be better than PV->NV->IV | |
2145 | flags already correct - don't set public IOK. */ | |
2146 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2147 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2148 | PTR2UV(sv), |
2149 | SvNVX(sv), | |
2150 | SvIVX(sv))); | |
2151 | } | |
2152 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2153 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2154 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2155 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2156 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2157 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2158 | Hopefully for 2s complement IV_MIN is something like | |
2159 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2160 | } |
25da4f38 | 2161 | else { |
ff68c719 | 2162 | SvUVX(sv) = U_V(SvNVX(sv)); |
28e5dec8 JH |
2163 | if ( |
2164 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2165 | #ifndef NV_PRESERVES_UV | |
2166 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2167 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2168 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2169 | /* Don't flag it as "accurately an integer" if the number | |
2170 | came from a (by definition imprecise) NV operation, and | |
2171 | we're outside the range of NV integer precision */ | |
2172 | #endif | |
2173 | ) | |
2174 | SvIOK_on(sv); | |
25da4f38 IZ |
2175 | SvIsUV_on(sv); |
2176 | ret_iv_max: | |
1c846c1f | 2177 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2178 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2179 | PTR2UV(sv), |
57def98f JH |
2180 | SvUVX(sv), |
2181 | SvUVX(sv))); | |
25da4f38 IZ |
2182 | return (IV)SvUVX(sv); |
2183 | } | |
748a9306 LW |
2184 | } |
2185 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2186 | UV value; |
2187 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2188 | /* We want to avoid a possible problem when we cache an IV which |
2189 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2190 | the same as the direct translation of the initial string |
2191 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2192 | be careful to ensure that the value with the .456 is around if the | |
2193 | NV value is requested in the future). | |
1c846c1f | 2194 | |
25da4f38 IZ |
2195 | This means that if we cache such an IV, we need to cache the |
2196 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2197 | cache the NV if we are sure it's not needed. |
25da4f38 | 2198 | */ |
16b7a9a4 | 2199 | |
c2988b20 NC |
2200 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2201 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2202 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2203 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2204 | if (SvTYPE(sv) < SVt_PVIV) |
2205 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2206 | (void)SvIOK_on(sv); |
c2988b20 NC |
2207 | } else if (SvTYPE(sv) < SVt_PVNV) |
2208 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2209 | |
c2988b20 NC |
2210 | /* If NV preserves UV then we only use the UV value if we know that |
2211 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2212 | then the value returned may have more precision than atof() will | |
2213 | return, even though value isn't perfectly accurate. */ | |
2214 | if ((numtype & (IS_NUMBER_IN_UV | |
2215 | #ifdef NV_PRESERVES_UV | |
2216 | | IS_NUMBER_NOT_INT | |
2217 | #endif | |
2218 | )) == IS_NUMBER_IN_UV) { | |
2219 | /* This won't turn off the public IOK flag if it was set above */ | |
2220 | (void)SvIOKp_on(sv); | |
2221 | ||
2222 | if (!(numtype & IS_NUMBER_NEG)) { | |
2223 | /* positive */; | |
2224 | if (value <= (UV)IV_MAX) { | |
2225 | SvIVX(sv) = (IV)value; | |
2226 | } else { | |
2227 | SvUVX(sv) = value; | |
2228 | SvIsUV_on(sv); | |
2229 | } | |
2230 | } else { | |
2231 | /* 2s complement assumption */ | |
2232 | if (value <= (UV)IV_MIN) { | |
2233 | SvIVX(sv) = -(IV)value; | |
2234 | } else { | |
2235 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2236 | I'm assuming it will be rare. */ |
c2988b20 NC |
2237 | if (SvTYPE(sv) < SVt_PVNV) |
2238 | sv_upgrade(sv, SVt_PVNV); | |
2239 | SvNOK_on(sv); | |
2240 | SvIOK_off(sv); | |
2241 | SvIOKp_on(sv); | |
2242 | SvNVX(sv) = -(NV)value; | |
2243 | SvIVX(sv) = IV_MIN; | |
2244 | } | |
2245 | } | |
2246 | } | |
2247 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2248 | will be in the previous block to set the IV slot, and the next | |
2249 | block to set the NV slot. So no else here. */ | |
2250 | ||
2251 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2252 | != IS_NUMBER_IN_UV) { | |
2253 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
2254 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2255 | |
c2988b20 NC |
2256 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2257 | not_a_number(sv); | |
28e5dec8 | 2258 | |
65202027 | 2259 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2260 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2261 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2262 | #else |
1779d84d | 2263 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2264 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2265 | #endif |
28e5dec8 JH |
2266 | |
2267 | ||
2268 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2269 | (void)SvIOKp_on(sv); |
2270 | (void)SvNOK_on(sv); | |
2271 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2272 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2273 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2274 | SvIOK_on(sv); | |
28e5dec8 | 2275 | } else { |
c2988b20 NC |
2276 | /* Integer is imprecise. NOK, IOKp */ |
2277 | } | |
2278 | /* UV will not work better than IV */ | |
2279 | } else { | |
2280 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2281 | SvIsUV_on(sv); | |
2282 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2283 | SvUVX(sv) = UV_MAX; | |
2284 | SvIsUV_on(sv); | |
2285 | } else { | |
2286 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2287 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ | |
2288 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2289 | SvIOK_on(sv); | |
28e5dec8 JH |
2290 | SvIsUV_on(sv); |
2291 | } else { | |
c2988b20 NC |
2292 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2293 | SvIsUV_on(sv); | |
28e5dec8 | 2294 | } |
28e5dec8 | 2295 | } |
c2988b20 NC |
2296 | goto ret_iv_max; |
2297 | } | |
28e5dec8 | 2298 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2299 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2300 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2301 | /* The IV slot will have been set from value returned by | |
2302 | grok_number above. The NV slot has just been set using | |
2303 | Atof. */ | |
560b0c46 | 2304 | SvNOK_on(sv); |
c2988b20 NC |
2305 | assert (SvIOKp(sv)); |
2306 | } else { | |
2307 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2308 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2309 | /* Small enough to preserve all bits. */ | |
2310 | (void)SvIOKp_on(sv); | |
2311 | SvNOK_on(sv); | |
2312 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2313 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2314 | SvIOK_on(sv); | |
2315 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2316 | this NV is in the preserved range, therefore: */ | |
2317 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2318 | < (UV)IV_MAX)) { | |
6b6e5432 | 2319 | 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 |
2320 | } |
2321 | } else { | |
2322 | /* IN_UV NOT_INT | |
2323 | 0 0 already failed to read UV. | |
2324 | 0 1 already failed to read UV. | |
2325 | 1 0 you won't get here in this case. IV/UV | |
2326 | slot set, public IOK, Atof() unneeded. | |
2327 | 1 1 already read UV. | |
2328 | so there's no point in sv_2iuv_non_preserve() attempting | |
2329 | to use atol, strtol, strtoul etc. */ | |
2330 | if (sv_2iuv_non_preserve (sv, numtype) | |
2331 | >= IS_NUMBER_OVERFLOW_IV) | |
2332 | goto ret_iv_max; | |
2333 | } | |
2334 | } | |
28e5dec8 | 2335 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2336 | } |
28e5dec8 | 2337 | } else { |
599cee73 | 2338 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2339 | report_uninit(); |
25da4f38 IZ |
2340 | if (SvTYPE(sv) < SVt_IV) |
2341 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2342 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2343 | return 0; |
79072805 | 2344 | } |
1d7c1841 GS |
2345 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2346 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2347 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2348 | } |
2349 | ||
645c22ef DM |
2350 | /* |
2351 | =for apidoc sv_2uv | |
2352 | ||
2353 | Return the unsigned integer value of an SV, doing any necessary string | |
2354 | conversion, magic etc. Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> | |
2355 | macros. | |
2356 | ||
2357 | =cut | |
2358 | */ | |
2359 | ||
ff68c719 | 2360 | UV |
864dbfa3 | 2361 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 2362 | { |
2363 | if (!sv) | |
2364 | return 0; | |
2365 | if (SvGMAGICAL(sv)) { | |
2366 | mg_get(sv); | |
2367 | if (SvIOKp(sv)) | |
2368 | return SvUVX(sv); | |
2369 | if (SvNOKp(sv)) | |
2370 | return U_V(SvNVX(sv)); | |
36477c24 | 2371 | if (SvPOKp(sv) && SvLEN(sv)) |
2372 | return asUV(sv); | |
3fe9a6f1 | 2373 | if (!SvROK(sv)) { |
d008e5eb | 2374 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2375 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2376 | report_uninit(); |
c6ee37c5 | 2377 | } |
36477c24 | 2378 | return 0; |
3fe9a6f1 | 2379 | } |
ff68c719 | 2380 | } |
2381 | if (SvTHINKFIRST(sv)) { | |
2382 | if (SvROK(sv)) { | |
ff68c719 | 2383 | SV* tmpstr; |
1554e226 | 2384 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2385 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2386 | return SvUV(tmpstr); |
56431972 | 2387 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2388 | } |
8a818333 NIS |
2389 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2390 | sv_force_normal(sv); | |
2391 | } | |
0336b60e | 2392 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2393 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2394 | report_uninit(); |
ff68c719 | 2395 | return 0; |
2396 | } | |
2397 | } | |
25da4f38 IZ |
2398 | if (SvIOKp(sv)) { |
2399 | if (SvIsUV(sv)) { | |
2400 | return SvUVX(sv); | |
2401 | } | |
2402 | else { | |
2403 | return (UV)SvIVX(sv); | |
2404 | } | |
ff68c719 | 2405 | } |
2406 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2407 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2408 | * without also getting a cached IV/UV from it at the same time | |
2409 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2410 | * IV or UV at same time to avoid this. */ | |
2411 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2412 | ||
25da4f38 IZ |
2413 | if (SvTYPE(sv) == SVt_NV) |
2414 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2415 | |
2416 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2417 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
f7bbb42a | 2418 | SvIVX(sv) = I_V(SvNVX(sv)); |
28e5dec8 JH |
2419 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2420 | #ifndef NV_PRESERVES_UV | |
2421 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2422 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2423 | /* Don't flag it as "accurately an integer" if the number | |
2424 | came from a (by definition imprecise) NV operation, and | |
2425 | we're outside the range of NV integer precision */ | |
2426 | #endif | |
2427 | ) { | |
2428 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2429 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2430 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2431 | PTR2UV(sv), |
2432 | SvNVX(sv), | |
2433 | SvIVX(sv))); | |
2434 | ||
2435 | } else { | |
2436 | /* IV not precise. No need to convert from PV, as NV | |
2437 | conversion would already have cached IV if it detected | |
2438 | that PV->IV would be better than PV->NV->IV | |
2439 | flags already correct - don't set public IOK. */ | |
2440 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2441 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2442 | PTR2UV(sv), |
2443 | SvNVX(sv), | |
2444 | SvIVX(sv))); | |
2445 | } | |
2446 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2447 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2448 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2449 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2450 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2451 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2452 | Hopefully for 2s complement IV_MIN is something like | |
2453 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2454 | } |
28e5dec8 JH |
2455 | else { |
2456 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2457 | if ( | |
2458 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2459 | #ifndef NV_PRESERVES_UV | |
2460 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2461 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2462 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2463 | /* Don't flag it as "accurately an integer" if the number | |
2464 | came from a (by definition imprecise) NV operation, and | |
2465 | we're outside the range of NV integer precision */ | |
2466 | #endif | |
2467 | ) | |
2468 | SvIOK_on(sv); | |
2469 | SvIsUV_on(sv); | |
1c846c1f | 2470 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2471 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2472 | PTR2UV(sv), |
28e5dec8 JH |
2473 | SvUVX(sv), |
2474 | SvUVX(sv))); | |
25da4f38 | 2475 | } |
ff68c719 | 2476 | } |
2477 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2478 | UV value; |
2479 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2480 | |
2481 | /* We want to avoid a possible problem when we cache a UV which | |
2482 | may be later translated to an NV, and the resulting NV is not | |
2483 | the translation of the initial data. | |
1c846c1f | 2484 | |
25da4f38 IZ |
2485 | This means that if we cache such a UV, we need to cache the |
2486 | NV as well. Moreover, we trade speed for space, and do not | |
2487 | cache the NV if not needed. | |
2488 | */ | |
16b7a9a4 | 2489 | |
c2988b20 NC |
2490 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2491 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2492 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2493 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2494 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2495 | sv_upgrade(sv, SVt_PVIV); |
2496 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2497 | } else if (SvTYPE(sv) < SVt_PVNV) |
2498 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2499 | |
c2988b20 NC |
2500 | /* If NV preserves UV then we only use the UV value if we know that |
2501 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2502 | then the value returned may have more precision than atof() will | |
2503 | return, even though it isn't accurate. */ | |
2504 | if ((numtype & (IS_NUMBER_IN_UV | |
2505 | #ifdef NV_PRESERVES_UV | |
2506 | | IS_NUMBER_NOT_INT | |
2507 | #endif | |
2508 | )) == IS_NUMBER_IN_UV) { | |
2509 | /* This won't turn off the public IOK flag if it was set above */ | |
2510 | (void)SvIOKp_on(sv); | |
2511 | ||
2512 | if (!(numtype & IS_NUMBER_NEG)) { | |
2513 | /* positive */; | |
2514 | if (value <= (UV)IV_MAX) { | |
2515 | SvIVX(sv) = (IV)value; | |
28e5dec8 JH |
2516 | } else { |
2517 | /* it didn't overflow, and it was positive. */ | |
c2988b20 | 2518 | SvUVX(sv) = value; |
28e5dec8 JH |
2519 | SvIsUV_on(sv); |
2520 | } | |
c2988b20 NC |
2521 | } else { |
2522 | /* 2s complement assumption */ | |
2523 | if (value <= (UV)IV_MIN) { | |
2524 | SvIVX(sv) = -(IV)value; | |
2525 | } else { | |
2526 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2527 | I'm assuming it will be rare. */ |
c2988b20 NC |
2528 | if (SvTYPE(sv) < SVt_PVNV) |
2529 | sv_upgrade(sv, SVt_PVNV); | |
2530 | SvNOK_on(sv); | |
2531 | SvIOK_off(sv); | |
2532 | SvIOKp_on(sv); | |
2533 | SvNVX(sv) = -(NV)value; | |
2534 | SvIVX(sv) = IV_MIN; | |
2535 | } | |
2536 | } | |
2537 | } | |
2538 | ||
2539 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2540 | != IS_NUMBER_IN_UV) { | |
2541 | /* It wasn't an integer, or it overflowed the UV. */ | |
2542 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 | 2543 | |
c2988b20 | 2544 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2545 | not_a_number(sv); |
2546 | ||
2547 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2548 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2549 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2550 | #else |
1779d84d | 2551 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2552 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2553 | #endif |
2554 | ||
2555 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2556 | (void)SvIOKp_on(sv); |
2557 | (void)SvNOK_on(sv); | |
2558 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2559 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2560 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { | |
2561 | SvIOK_on(sv); | |
2562 | } else { | |
2563 | /* Integer is imprecise. NOK, IOKp */ | |
2564 | } | |
2565 | /* UV will not work better than IV */ | |
2566 | } else { | |
2567 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2568 | SvIsUV_on(sv); | |
2569 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
2570 | SvUVX(sv) = UV_MAX; | |
2571 | SvIsUV_on(sv); | |
2572 | } else { | |
2573 | SvUVX(sv) = U_V(SvNVX(sv)); | |
2574 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs | |
2575 | NV preservse UV so can do correct comparison. */ | |
2576 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2577 | SvIOK_on(sv); | |
2578 | SvIsUV_on(sv); | |
2579 | } else { | |
2580 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2581 | SvIsUV_on(sv); | |
2582 | } | |
2583 | } | |
2584 | } | |
28e5dec8 | 2585 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2586 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2587 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2588 | /* The UV slot will have been set from value returned by | |
2589 | grok_number above. The NV slot has just been set using | |
2590 | Atof. */ | |
560b0c46 | 2591 | SvNOK_on(sv); |
c2988b20 NC |
2592 | assert (SvIOKp(sv)); |
2593 | } else { | |
2594 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2595 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2596 | /* Small enough to preserve all bits. */ | |
2597 | (void)SvIOKp_on(sv); | |
2598 | SvNOK_on(sv); | |
2599 | SvIVX(sv) = I_V(SvNVX(sv)); | |
2600 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) | |
2601 | SvIOK_on(sv); | |
2602 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2603 | this NV is in the preserved range, therefore: */ | |
2604 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2605 | < (UV)IV_MAX)) { | |
6b6e5432 | 2606 | 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 |
2607 | } |
2608 | } else | |
2609 | sv_2iuv_non_preserve (sv, numtype); | |
2610 | } | |
28e5dec8 | 2611 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2612 | } |
ff68c719 | 2613 | } |
2614 | else { | |
d008e5eb | 2615 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2616 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2617 | report_uninit(); |
c6ee37c5 | 2618 | } |
25da4f38 IZ |
2619 | if (SvTYPE(sv) < SVt_IV) |
2620 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2621 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2622 | return 0; |
2623 | } | |
25da4f38 | 2624 | |
1d7c1841 GS |
2625 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2626 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2627 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2628 | } |
2629 | ||
645c22ef DM |
2630 | /* |
2631 | =for apidoc sv_2nv | |
2632 | ||
2633 | Return the num value of an SV, doing any necessary string or integer | |
2634 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2635 | macros. | |
2636 | ||
2637 | =cut | |
2638 | */ | |
2639 | ||
65202027 | 2640 | NV |
864dbfa3 | 2641 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2642 | { |
2643 | if (!sv) | |
2644 | return 0.0; | |
8990e307 | 2645 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2646 | mg_get(sv); |
2647 | if (SvNOKp(sv)) | |
2648 | return SvNVX(sv); | |
a0d0e21e | 2649 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2650 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
2651 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 2652 | not_a_number(sv); |
097ee67d | 2653 | return Atof(SvPVX(sv)); |
a0d0e21e | 2654 | } |
25da4f38 | 2655 | if (SvIOKp(sv)) { |
1c846c1f | 2656 | if (SvIsUV(sv)) |
65202027 | 2657 | return (NV)SvUVX(sv); |
25da4f38 | 2658 | else |
65202027 | 2659 | return (NV)SvIVX(sv); |
25da4f38 | 2660 | } |
16d20bd9 | 2661 | if (!SvROK(sv)) { |
d008e5eb | 2662 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2663 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2664 | report_uninit(); |
c6ee37c5 | 2665 | } |
16d20bd9 AD |
2666 | return 0; |
2667 | } | |
463ee0b2 | 2668 | } |
ed6116ce | 2669 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2670 | if (SvROK(sv)) { |
a0d0e21e | 2671 | SV* tmpstr; |
1554e226 | 2672 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2673 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2674 | return SvNV(tmpstr); |
56431972 | 2675 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2676 | } |
8a818333 NIS |
2677 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
2678 | sv_force_normal(sv); | |
2679 | } | |
0336b60e | 2680 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2681 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 2682 | report_uninit(); |
ed6116ce LW |
2683 | return 0.0; |
2684 | } | |
79072805 LW |
2685 | } |
2686 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2687 | if (SvTYPE(sv) == SVt_IV) |
2688 | sv_upgrade(sv, SVt_PVNV); | |
2689 | else | |
2690 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2691 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2692 | DEBUG_c({ |
f93f4e46 | 2693 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2694 | PerlIO_printf(Perl_debug_log, |
2695 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2696 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2697 | RESTORE_NUMERIC_LOCAL(); |
2698 | }); | |
65202027 | 2699 | #else |
572bbb43 | 2700 | DEBUG_c({ |
f93f4e46 | 2701 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2702 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2703 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2704 | RESTORE_NUMERIC_LOCAL(); |
2705 | }); | |
572bbb43 | 2706 | #endif |
79072805 LW |
2707 | } |
2708 | else if (SvTYPE(sv) < SVt_PVNV) | |
2709 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2710 | if (SvNOKp(sv)) { |
2711 | return SvNVX(sv); | |
61604483 | 2712 | } |
59d8ce62 | 2713 | if (SvIOKp(sv)) { |
65202027 | 2714 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
28e5dec8 JH |
2715 | #ifdef NV_PRESERVES_UV |
2716 | SvNOK_on(sv); | |
2717 | #else | |
2718 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2719 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2720 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2721 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2722 | SvNOK_on(sv); | |
2723 | else | |
2724 | SvNOKp_on(sv); | |
2725 | #endif | |
93a17b20 | 2726 | } |
748a9306 | 2727 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
2728 | UV value; |
2729 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2730 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 2731 | not_a_number(sv); |
28e5dec8 | 2732 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2733 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2734 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2735 | /* It's definitely an integer */ |
c2988b20 NC |
2736 | SvNVX(sv) = (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value; |
2737 | } else | |
2738 | SvNVX(sv) = Atof(SvPVX(sv)); | |
28e5dec8 JH |
2739 | SvNOK_on(sv); |
2740 | #else | |
c2988b20 | 2741 | SvNVX(sv) = Atof(SvPVX(sv)); |
28e5dec8 JH |
2742 | /* Only set the public NV OK flag if this NV preserves the value in |
2743 | the PV at least as well as an IV/UV would. | |
2744 | Not sure how to do this 100% reliably. */ | |
2745 | /* if that shift count is out of range then Configure's test is | |
2746 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2747 | UV_BITS */ | |
2748 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2749 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2750 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2751 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2752 | /* Can't use strtol etc to convert this string, so don't try. | |
2753 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2754 | SvNOK_on(sv); | |
2755 | } else { | |
2756 | /* value has been set. It may not be precise. */ | |
2757 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2758 | /* 2s complement assumption for (UV)IV_MIN */ | |
2759 | SvNOK_on(sv); /* Integer is too negative. */ | |
2760 | } else { | |
2761 | SvNOKp_on(sv); | |
2762 | SvIOKp_on(sv); | |
6fa402ec | 2763 | |
c2988b20 NC |
2764 | if (numtype & IS_NUMBER_NEG) { |
2765 | SvIVX(sv) = -(IV)value; | |
2766 | } else if (value <= (UV)IV_MAX) { | |
2767 | SvIVX(sv) = (IV)value; | |
2768 | } else { | |
2769 | SvUVX(sv) = value; | |
2770 | SvIsUV_on(sv); | |
2771 | } | |
2772 | ||
2773 | if (numtype & IS_NUMBER_NOT_INT) { | |
2774 | /* I believe that even if the original PV had decimals, | |
2775 | they are lost beyond the limit of the FP precision. | |
2776 | However, neither is canonical, so both only get p | |
2777 | flags. NWC, 2000/11/25 */ | |
2778 | /* Both already have p flags, so do nothing */ | |
2779 | } else { | |
2780 | NV nv = SvNVX(sv); | |
2781 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
2782 | if (SvIVX(sv) == I_V(nv)) { | |
2783 | SvNOK_on(sv); | |
2784 | SvIOK_on(sv); | |
2785 | } else { | |
2786 | SvIOK_on(sv); | |
2787 | /* It had no "." so it must be integer. */ | |
2788 | } | |
2789 | } else { | |
2790 | /* between IV_MAX and NV(UV_MAX). | |
2791 | Could be slightly > UV_MAX */ | |
6fa402ec | 2792 | |
c2988b20 NC |
2793 | if (numtype & IS_NUMBER_NOT_INT) { |
2794 | /* UV and NV both imprecise. */ | |
2795 | } else { | |
2796 | UV nv_as_uv = U_V(nv); | |
2797 | ||
2798 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2799 | SvNOK_on(sv); | |
2800 | SvIOK_on(sv); | |
2801 | } else { | |
2802 | SvIOK_on(sv); | |
2803 | } | |
2804 | } | |
2805 | } | |
2806 | } | |
2807 | } | |
2808 | } | |
28e5dec8 | 2809 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2810 | } |
79072805 | 2811 | else { |
599cee73 | 2812 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 2813 | report_uninit(); |
25da4f38 IZ |
2814 | if (SvTYPE(sv) < SVt_NV) |
2815 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2816 | /* XXX Ilya implies that this is a bug in callers that assume this |
2817 | and ideally should be fixed. */ | |
25da4f38 | 2818 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2819 | return 0.0; |
79072805 | 2820 | } |
572bbb43 | 2821 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2822 | DEBUG_c({ |
f93f4e46 | 2823 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2824 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2825 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2826 | RESTORE_NUMERIC_LOCAL(); |
2827 | }); | |
65202027 | 2828 | #else |
572bbb43 | 2829 | DEBUG_c({ |
f93f4e46 | 2830 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2831 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2832 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2833 | RESTORE_NUMERIC_LOCAL(); |
2834 | }); | |
572bbb43 | 2835 | #endif |
463ee0b2 | 2836 | return SvNVX(sv); |
79072805 LW |
2837 | } |
2838 | ||
645c22ef DM |
2839 | /* asIV(): extract an integer from the string value of an SV. |
2840 | * Caller must validate PVX */ | |
2841 | ||
76e3520e | 2842 | STATIC IV |
cea2e8a9 | 2843 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2844 | { |
c2988b20 NC |
2845 | UV value; |
2846 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
2847 | ||
2848 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2849 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2850 | /* It's definitely an integer */ |
c2988b20 NC |
2851 | if (numtype & IS_NUMBER_NEG) { |
2852 | if (value < (UV)IV_MIN) | |
2853 | return -(IV)value; | |
2854 | } else { | |
2855 | if (value < (UV)IV_MAX) | |
2856 | return (IV)value; | |
2857 | } | |
2858 | } | |
d008e5eb | 2859 | if (!numtype) { |
d008e5eb GS |
2860 | if (ckWARN(WARN_NUMERIC)) |
2861 | not_a_number(sv); | |
2862 | } | |
c2988b20 | 2863 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 2864 | } |
2865 | ||
645c22ef DM |
2866 | /* asUV(): extract an unsigned integer from the string value of an SV |
2867 | * Caller must validate PVX */ | |
2868 | ||
76e3520e | 2869 | STATIC UV |
cea2e8a9 | 2870 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2871 | { |
c2988b20 NC |
2872 | UV value; |
2873 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 2874 | |
c2988b20 NC |
2875 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2876 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2877 | /* It's definitely an integer */ |
6fa402ec | 2878 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2879 | return value; |
2880 | } | |
d008e5eb | 2881 | if (!numtype) { |
d008e5eb GS |
2882 | if (ckWARN(WARN_NUMERIC)) |
2883 | not_a_number(sv); | |
2884 | } | |
097ee67d | 2885 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 2886 | } |
2887 | ||
645c22ef DM |
2888 | /* |
2889 | =for apidoc sv_2pv_nolen | |
2890 | ||
2891 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2892 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2893 | =cut | |
2894 | */ | |
2895 | ||
79072805 | 2896 | char * |
864dbfa3 | 2897 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
2898 | { |
2899 | STRLEN n_a; | |
2900 | return sv_2pv(sv, &n_a); | |
2901 | } | |
2902 | ||
645c22ef DM |
2903 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2904 | * UV as a string towards the end of buf, and return pointers to start and | |
2905 | * end of it. | |
2906 | * | |
2907 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2908 | */ | |
2909 | ||
864dbfa3 | 2910 | static char * |
25da4f38 IZ |
2911 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
2912 | { | |
25da4f38 IZ |
2913 | char *ptr = buf + TYPE_CHARS(UV); |
2914 | char *ebuf = ptr; | |
2915 | int sign; | |
25da4f38 IZ |
2916 | |
2917 | if (is_uv) | |
2918 | sign = 0; | |
2919 | else if (iv >= 0) { | |
2920 | uv = iv; | |
2921 | sign = 0; | |
2922 | } else { | |
2923 | uv = -iv; | |
2924 | sign = 1; | |
2925 | } | |
2926 | do { | |
eb160463 | 2927 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
2928 | } while (uv /= 10); |
2929 | if (sign) | |
2930 | *--ptr = '-'; | |
2931 | *peob = ebuf; | |
2932 | return ptr; | |
2933 | } | |
2934 | ||
d34f9d2e JH |
2935 | /* sv_2pv() is now a macro using Perl_sv_2pv_flags(); |
2936 | * this function provided for binary compatibility only | |
2937 | */ | |
2938 | ||
2939 | char * | |
2940 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) | |
2941 | { | |
2942 | return sv_2pv_flags(sv, lp, SV_GMAGIC); | |
2943 | } | |
2944 | ||
645c22ef DM |
2945 | /* |
2946 | =for apidoc sv_2pv_flags | |
2947 | ||
ff276b08 | 2948 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2949 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2950 | if necessary. | |
2951 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
2952 | usually end up here too. | |
2953 | ||
2954 | =cut | |
2955 | */ | |
2956 | ||
8d6d96c1 HS |
2957 | char * |
2958 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
2959 | { | |
79072805 LW |
2960 | register char *s; |
2961 | int olderrno; | |
5b7ea690 | 2962 | SV *tsv, *origsv; |
25da4f38 IZ |
2963 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
2964 | char *tmpbuf = tbuf; | |
79072805 | 2965 | |
463ee0b2 LW |
2966 | if (!sv) { |
2967 | *lp = 0; | |
2968 | return ""; | |
2969 | } | |
8990e307 | 2970 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
2971 | if (flags & SV_GMAGIC) |
2972 | mg_get(sv); | |
463ee0b2 LW |
2973 | if (SvPOKp(sv)) { |
2974 | *lp = SvCUR(sv); | |
2975 | return SvPVX(sv); | |
2976 | } | |
cf2093f6 | 2977 | if (SvIOKp(sv)) { |
1c846c1f | 2978 | if (SvIsUV(sv)) |
57def98f | 2979 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 2980 | else |
57def98f | 2981 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 2982 | tsv = Nullsv; |
a0d0e21e | 2983 | goto tokensave; |
463ee0b2 LW |
2984 | } |
2985 | if (SvNOKp(sv)) { | |
2d4389e4 | 2986 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 2987 | tsv = Nullsv; |
a0d0e21e | 2988 | goto tokensave; |
463ee0b2 | 2989 | } |
16d20bd9 | 2990 | if (!SvROK(sv)) { |
d008e5eb | 2991 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2992 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2993 | report_uninit(); |
c6ee37c5 | 2994 | } |
16d20bd9 AD |
2995 | *lp = 0; |
2996 | return ""; | |
2997 | } | |
463ee0b2 | 2998 | } |
ed6116ce LW |
2999 | if (SvTHINKFIRST(sv)) { |
3000 | if (SvROK(sv)) { | |
a0d0e21e | 3001 | SV* tmpstr; |
1554e226 | 3002 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
b4b9a328 | 3003 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) { |
5b7ea690 JH |
3004 | char *pv = SvPV(tmpstr, *lp); |
3005 | if (SvUTF8(tmpstr)) | |
3006 | SvUTF8_on(sv); | |
3007 | else | |
3008 | SvUTF8_off(sv); | |
3009 | return pv; | |
3010 | } | |
3011 | origsv = sv; | |
ed6116ce LW |
3012 | sv = (SV*)SvRV(sv); |
3013 | if (!sv) | |
3014 | s = "NULLREF"; | |
3015 | else { | |
f9277f47 IZ |
3016 | MAGIC *mg; |
3017 | ||
ed6116ce | 3018 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
3019 | case SVt_PVMG: |
3020 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 3021 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
5835a535 | 3022 | == (SVs_OBJECT|SVs_SMG)) |
14befaf4 | 3023 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
2cd61cdb | 3024 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 3025 | |
2cd61cdb | 3026 | if (!mg->mg_ptr) { |
8782bef2 GB |
3027 | char *fptr = "msix"; |
3028 | char reflags[6]; | |
3029 | char ch; | |
3030 | int left = 0; | |
3031 | int right = 4; | |
ff385a1b | 3032 | char need_newline = 0; |
eb160463 | 3033 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 3034 | |
155aba94 | 3035 | while((ch = *fptr++)) { |
8782bef2 GB |
3036 | if(reganch & 1) { |
3037 | reflags[left++] = ch; | |
3038 | } | |
3039 | else { | |
3040 | reflags[right--] = ch; | |
3041 | } | |
3042 | reganch >>= 1; | |
3043 | } | |
3044 | if(left != 4) { | |
3045 | reflags[left] = '-'; | |
3046 | left = 5; | |
3047 | } | |
3048 | ||
3049 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
3050 | /* |
3051 | * If /x was used, we have to worry about a regex | |
3052 | * ending with a comment later being embedded | |
3053 | * within another regex. If so, we don't want this | |
3054 | * regex's "commentization" to leak out to the | |
3055 | * right part of the enclosing regex, we must cap | |
3056 | * it with a newline. | |
3057 | * | |
3058 | * So, if /x was used, we scan backwards from the | |
3059 | * end of the regex. If we find a '#' before we | |
3060 | * find a newline, we need to add a newline | |
3061 | * ourself. If we find a '\n' first (or if we | |
3062 | * don't find '#' or '\n'), we don't need to add | |
3063 | * anything. -jfriedl | |
3064 | */ | |
3065 | if (PMf_EXTENDED & re->reganch) | |
3066 | { | |
3067 | char *endptr = re->precomp + re->prelen; | |
3068 | while (endptr >= re->precomp) | |
3069 | { | |
3070 | char c = *(endptr--); | |
3071 | if (c == '\n') | |
3072 | break; /* don't need another */ | |
3073 | if (c == '#') { | |
3074 | /* we end while in a comment, so we | |
3075 | need a newline */ | |
3076 | mg->mg_len++; /* save space for it */ | |
3077 | need_newline = 1; /* note to add it */ | |
5b7ea690 | 3078 | break; |
ff385a1b JF |
3079 | } |
3080 | } | |
3081 | } | |
3082 | ||
8782bef2 GB |
3083 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); |
3084 | Copy("(?", mg->mg_ptr, 2, char); | |
3085 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3086 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3087 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3088 | if (need_newline) |
3089 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3090 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3091 | mg->mg_ptr[mg->mg_len] = 0; | |
3092 | } | |
3280af22 | 3093 | PL_reginterp_cnt += re->program[0].next_off; |
5b7ea690 JH |
3094 | |
3095 | if (re->reganch & ROPT_UTF8) | |
3096 | SvUTF8_on(origsv); | |
3097 | else | |
3098 | SvUTF8_off(origsv); | |
1bd3ad17 IZ |
3099 | *lp = mg->mg_len; |
3100 | return mg->mg_ptr; | |
f9277f47 IZ |
3101 | } |
3102 | /* Fall through */ | |
ed6116ce LW |
3103 | case SVt_NULL: |
3104 | case SVt_IV: | |
3105 | case SVt_NV: | |
3106 | case SVt_RV: | |
3107 | case SVt_PV: | |
3108 | case SVt_PVIV: | |
3109 | case SVt_PVNV: | |
81689caa HS |
3110 | case SVt_PVBM: if (SvROK(sv)) |
3111 | s = "REF"; | |
3112 | else | |
3113 | s = "SCALAR"; break; | |
ac388100 JH |
3114 | case SVt_PVLV: s = SvROK(sv) ? "REF" |
3115 | /* tied lvalues should appear to be | |
3116 | * scalars for backwards compatitbility */ | |
3117 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
3118 | ? "SCALAR" : "LVALUE"; break; | |
ed6116ce LW |
3119 | case SVt_PVAV: s = "ARRAY"; break; |
3120 | case SVt_PVHV: s = "HASH"; break; | |
3121 | case SVt_PVCV: s = "CODE"; break; | |
3122 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 3123 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 3124 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
3125 | default: s = "UNKNOWN"; break; |
3126 | } | |
46fc3d4c | 3127 | tsv = NEWSV(0,0); |
c86bf373 AMS |
3128 | if (SvOBJECT(sv)) { |
3129 | HV *svs = SvSTASH(sv); | |
3130 | Perl_sv_setpvf( | |
3131 | aTHX_ tsv, "%s=%s", | |
3132 | /* [20011101.072] This bandaid for C<package;> | |
3133 | should eventually be removed. AMS 20011103 */ | |
3134 | (svs ? HvNAME(svs) : "<none>"), s | |
3135 | ); | |
3136 | } | |
ed6116ce | 3137 | else |
46fc3d4c | 3138 | sv_setpv(tsv, s); |
57def98f | 3139 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 3140 | goto tokensaveref; |
463ee0b2 | 3141 | } |
ed6116ce LW |
3142 | *lp = strlen(s); |
3143 | return s; | |
79072805 | 3144 | } |
0336b60e | 3145 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3146 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 3147 | report_uninit(); |
ed6116ce LW |
3148 | *lp = 0; |
3149 | return ""; | |
79072805 | 3150 | } |
79072805 | 3151 | } |
28e5dec8 JH |
3152 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3153 | /* I'm assuming that if both IV and NV are equally valid then | |
3154 | converting the IV is going to be more efficient */ | |
3155 | U32 isIOK = SvIOK(sv); | |
3156 | U32 isUIOK = SvIsUV(sv); | |
3157 | char buf[TYPE_CHARS(UV)]; | |
3158 | char *ebuf, *ptr; | |
3159 | ||
3160 | if (SvTYPE(sv) < SVt_PVIV) | |
3161 | sv_upgrade(sv, SVt_PVIV); | |
3162 | if (isUIOK) | |
3163 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3164 | else | |
3165 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
eb160463 | 3166 | SvGROW(sv, (STRLEN)(ebuf - ptr + 1)); /* inlined from sv_setpvn */ |
28e5dec8 JH |
3167 | Move(ptr,SvPVX(sv),ebuf - ptr,char); |
3168 | SvCUR_set(sv, ebuf - ptr); | |
3169 | s = SvEND(sv); | |
3170 | *s = '\0'; | |
3171 | if (isIOK) | |
3172 | SvIOK_on(sv); | |
3173 | else | |
3174 | SvIOKp_on(sv); | |
3175 | if (isUIOK) | |
3176 | SvIsUV_on(sv); | |
3177 | } | |
3178 | else if (SvNOKp(sv)) { | |
79072805 LW |
3179 | if (SvTYPE(sv) < SVt_PVNV) |
3180 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3181 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3182 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3183 | s = SvPVX(sv); |
79072805 | 3184 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3185 | #ifdef apollo |
463ee0b2 | 3186 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3187 | (void)strcpy(s,"0"); |
3188 | else | |
3189 | #endif /*apollo*/ | |
bbce6d69 | 3190 | { |
2d4389e4 | 3191 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3192 | } |
79072805 | 3193 | errno = olderrno; |
a0d0e21e LW |
3194 | #ifdef FIXNEGATIVEZERO |
3195 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3196 | strcpy(s,"0"); | |
3197 | #endif | |
79072805 LW |
3198 | while (*s) s++; |
3199 | #ifdef hcx | |
3200 | if (s[-1] == '.') | |
46fc3d4c | 3201 | *--s = '\0'; |
79072805 LW |
3202 | #endif |
3203 | } | |
79072805 | 3204 | else { |
0336b60e IZ |
3205 | if (ckWARN(WARN_UNINITIALIZED) |
3206 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
1d7c1841 | 3207 | report_uninit(); |
a0d0e21e | 3208 | *lp = 0; |
25da4f38 IZ |
3209 | if (SvTYPE(sv) < SVt_PV) |
3210 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3211 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 3212 | return ""; |
79072805 | 3213 | } |
463ee0b2 LW |
3214 | *lp = s - SvPVX(sv); |
3215 | SvCUR_set(sv, *lp); | |
79072805 | 3216 | SvPOK_on(sv); |
1d7c1841 GS |
3217 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3218 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3219 | return SvPVX(sv); |
a0d0e21e LW |
3220 | |
3221 | tokensave: | |
3222 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3223 | /* Sneaky stuff here */ | |
3224 | ||
3225 | tokensaveref: | |
46fc3d4c | 3226 | if (!tsv) |
96827780 | 3227 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3228 | sv_2mortal(tsv); |
3229 | *lp = SvCUR(tsv); | |
3230 | return SvPVX(tsv); | |
a0d0e21e LW |
3231 | } |
3232 | else { | |
3233 | STRLEN len; | |
46fc3d4c | 3234 | char *t; |
3235 | ||
3236 | if (tsv) { | |
3237 | sv_2mortal(tsv); | |
3238 | t = SvPVX(tsv); | |
3239 | len = SvCUR(tsv); | |
3240 | } | |
3241 | else { | |
96827780 MB |
3242 | t = tmpbuf; |
3243 | len = strlen(tmpbuf); | |
46fc3d4c | 3244 | } |
a0d0e21e | 3245 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3246 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3247 | t = "0"; | |
3248 | len = 1; | |
3249 | } | |
a0d0e21e LW |
3250 | #endif |
3251 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3252 | *lp = len; |
a0d0e21e LW |
3253 | s = SvGROW(sv, len + 1); |
3254 | SvCUR_set(sv, len); | |
46fc3d4c | 3255 | (void)strcpy(s, t); |
6bf554b4 | 3256 | SvPOKp_on(sv); |
a0d0e21e LW |
3257 | return s; |
3258 | } | |
463ee0b2 LW |
3259 | } |
3260 | ||
645c22ef | 3261 | /* |
6050d10e JP |
3262 | =for apidoc sv_copypv |
3263 | ||
3264 | Copies a stringified representation of the source SV into the | |
3265 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3266 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3267 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3268 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3269 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3270 | would lose the UTF-8'ness of the PV. |
3271 | ||
3272 | =cut | |
3273 | */ | |
3274 | ||
3275 | void | |
3276 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3277 | { | |
5b7ea690 JH |
3278 | STRLEN len; |
3279 | char *s; | |
3280 | s = SvPV(ssv,len); | |
3281 | sv_setpvn(dsv,s,len); | |
3282 | if (SvUTF8(ssv)) | |
3283 | SvUTF8_on(dsv); | |
3284 | else | |
3285 | SvUTF8_off(dsv); | |
6050d10e JP |
3286 | } |
3287 | ||
3288 | /* | |
645c22ef DM |
3289 | =for apidoc sv_2pvbyte_nolen |
3290 | ||
3291 | Return a pointer to the byte-encoded representation of the SV. | |
cd458e05 | 3292 | May cause the SV to be downgraded from UTF-8 as a side-effect. |
645c22ef DM |
3293 | |
3294 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3295 | ||
3296 | =cut | |
3297 | */ | |
3298 | ||
7340a771 GS |
3299 | char * |
3300 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3301 | { | |
560a288e GS |
3302 | STRLEN n_a; |
3303 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3304 | } |
3305 | ||
645c22ef DM |
3306 | /* |
3307 | =for apidoc sv_2pvbyte | |
3308 | ||
3309 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
cd458e05 | 3310 | to its length. May cause the SV to be downgraded from UTF-8 as a |
645c22ef DM |
3311 | side-effect. |
3312 | ||
3313 | Usually accessed via the C<SvPVbyte> macro. | |
3314 | ||
3315 | =cut | |
3316 | */ | |
3317 | ||
7340a771 GS |
3318 | char * |
3319 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3320 | { | |
0875d2fe NIS |
3321 | sv_utf8_downgrade(sv,0); |
3322 | return SvPV(sv,*lp); | |
7340a771 GS |
3323 | } |
3324 | ||
645c22ef DM |
3325 | /* |
3326 | =for apidoc sv_2pvutf8_nolen | |
3327 | ||
cd458e05 JH |
3328 | Return a pointer to the UTF-8-encoded representation of the SV. |
3329 | May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3330 | |
3331 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3332 | ||
3333 | =cut | |
3334 | */ | |
3335 | ||
7340a771 GS |
3336 | char * |
3337 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3338 | { | |
560a288e GS |
3339 | STRLEN n_a; |
3340 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3341 | } |
3342 | ||
645c22ef DM |
3343 | /* |
3344 | =for apidoc sv_2pvutf8 | |
3345 | ||
cd458e05 JH |
3346 | Return a pointer to the UTF-8-encoded representation of the SV, and set *lp |
3347 | to its length. May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3348 | |
3349 | Usually accessed via the C<SvPVutf8> macro. | |
3350 | ||
3351 | =cut | |
3352 | */ | |
3353 | ||
7340a771 GS |
3354 | char * |
3355 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3356 | { | |
560a288e | 3357 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3358 | return SvPV(sv,*lp); |
7340a771 | 3359 | } |
1c846c1f | 3360 | |
645c22ef DM |
3361 | /* |
3362 | =for apidoc sv_2bool | |
3363 | ||
3364 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3365 | sv_true() or its macro equivalent. |
645c22ef DM |
3366 | |
3367 | =cut | |
3368 | */ | |
3369 | ||
463ee0b2 | 3370 | bool |
864dbfa3 | 3371 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3372 | { |
8990e307 | 3373 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3374 | mg_get(sv); |
3375 | ||
a0d0e21e LW |
3376 | if (!SvOK(sv)) |
3377 | return 0; | |
3378 | if (SvROK(sv)) { | |
a0d0e21e | 3379 | SV* tmpsv; |
1554e226 | 3380 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3381 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3382 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3383 | return SvRV(sv) != 0; |
3384 | } | |
463ee0b2 | 3385 | if (SvPOKp(sv)) { |
11343788 MB |
3386 | register XPV* Xpvtmp; |
3387 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3388 | (*Xpvtmp->xpv_pv > '0' || | |
3389 | Xpvtmp->xpv_cur > 1 || | |
3390 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3391 | return 1; |
3392 | else | |
3393 | return 0; | |
3394 | } | |
3395 | else { | |
3396 | if (SvIOKp(sv)) | |
3397 | return SvIVX(sv) != 0; | |
3398 | else { | |
3399 | if (SvNOKp(sv)) | |
3400 | return SvNVX(sv) != 0.0; | |
3401 | else | |
3402 | return FALSE; | |
3403 | } | |
3404 | } | |
79072805 LW |
3405 | } |
3406 | ||
d34f9d2e JH |
3407 | /* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags(); |
3408 | * this function provided for binary compatibility only | |
3409 | */ | |
3410 | ||
3411 | ||
3412 | STRLEN | |
3413 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) | |
3414 | { | |
3415 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); | |
3416 | } | |
3417 | ||
c461cf8f JH |
3418 | /* |
3419 | =for apidoc sv_utf8_upgrade | |
3420 | ||
cd458e05 | 3421 | Convert the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3422 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3423 | Always sets the SvUTF8 flag to avoid future validity checks even |
3424 | if all the bytes have hibit clear. | |
c461cf8f | 3425 | |
13a6c0e0 JH |
3426 | This is not as a general purpose byte encoding to Unicode interface: |
3427 | use the Encode extension for that. | |
3428 | ||
8d6d96c1 HS |
3429 | =for apidoc sv_utf8_upgrade_flags |
3430 | ||
cd458e05 | 3431 | Convert the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3432 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3433 | Always sets the SvUTF8 flag to avoid future validity checks even |
3434 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3435 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3436 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3437 | ||
13a6c0e0 JH |
3438 | This is not as a general purpose byte encoding to Unicode interface: |
3439 | use the Encode extension for that. | |
3440 | ||
8d6d96c1 HS |
3441 | =cut |
3442 | */ | |
3443 | ||
3444 | STRLEN | |
3445 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3446 | { | |
db42d148 | 3447 | U8 *s, *t, *e; |
511c2ff0 | 3448 | int hibit = 0; |
560a288e | 3449 | |
e0e62c2a NIS |
3450 | if (!SvPOK(sv)) { |
3451 | STRLEN len = 0; | |
548f1cb8 | 3452 | (void) SvPV_force(sv,len); |
e0e62c2a | 3453 | } |
4411f3b6 | 3454 | |
548f1cb8 TS |
3455 | if (SvUTF8(sv)) { |
3456 | SvSETMAGIC(sv); | |
4411f3b6 | 3457 | return SvCUR(sv); |
548f1cb8 | 3458 | } |
560a288e | 3459 | |
db42d148 NIS |
3460 | if (SvREADONLY(sv) && SvFAKE(sv)) { |
3461 | sv_force_normal(sv); | |
3462 | } | |
3463 | ||
6563884d | 3464 | if (PL_encoding && !(flags & SV_UTF8_NO_ENCODING)) |
799ef3cb | 3465 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3466 | else { /* Assume Latin-1/EBCDIC */ |
0a378802 JH |
3467 | /* This function could be much more efficient if we |
3468 | * had a FLAG in SVs to signal if there are any hibit | |
3469 | * chars in the PV. Given that there isn't such a flag | |
3470 | * make the loop as fast as possible. */ | |
3471 | s = (U8 *) SvPVX(sv); | |
3472 | e = (U8 *) SvEND(sv); | |
3473 | t = s; | |
3474 | while (t < e) { | |
3475 | U8 ch = *t++; | |
3476 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3477 | break; | |
3478 | } | |
3479 | if (hibit) { | |
3480 | STRLEN len; | |
2c2a9fc1 TS |
3481 | (void)SvOOK_off(sv); |
3482 | s = (U8*)SvPVX(sv); | |
0a378802 JH |
3483 | len = SvCUR(sv) + 1; /* Plus the \0 */ |
3484 | SvPVX(sv) = (char*)bytes_to_utf8((U8*)s, &len); | |
3485 | SvCUR(sv) = len - 1; | |
3486 | if (SvLEN(sv) != 0) | |
3487 | Safefree(s); /* No longer using what was there before. */ | |
3488 | SvLEN(sv) = len; /* No longer know the real size. */ | |
3489 | } | |
9f4817db JH |
3490 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ |
3491 | SvUTF8_on(sv); | |
560a288e | 3492 | } |
548f1cb8 | 3493 | SvSETMAGIC(sv); |
4411f3b6 | 3494 | return SvCUR(sv); |
560a288e GS |
3495 | } |
3496 | ||
c461cf8f JH |
3497 | /* |
3498 | =for apidoc sv_utf8_downgrade | |
3499 | ||
cd458e05 | 3500 | Attempt to convert the PV of an SV from UTF-8-encoded to byte encoding. |
c461cf8f JH |
3501 | This may not be possible if the PV contains non-byte encoding characters; |
3502 | if this is the case, either returns false or, if C<fail_ok> is not | |
3503 | true, croaks. | |
3504 | ||
13a6c0e0 JH |
3505 | This is not as a general purpose Unicode to byte encoding interface: |
3506 | use the Encode extension for that. | |
3507 | ||
c461cf8f JH |
3508 | =cut |
3509 | */ | |
3510 | ||
560a288e GS |
3511 | bool |
3512 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3513 | { | |
3514 | if (SvPOK(sv) && SvUTF8(sv)) { | |
fa301091 | 3515 | if (SvCUR(sv)) { |
03cfe0ae | 3516 | U8 *s; |
652088fc | 3517 | STRLEN len; |
fa301091 | 3518 | |
652088fc JH |
3519 | if (SvREADONLY(sv) && SvFAKE(sv)) |
3520 | sv_force_normal(sv); | |
03cfe0ae NIS |
3521 | s = (U8 *) SvPV(sv, len); |
3522 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3523 | if (fail_ok) |
3524 | return FALSE; | |
3525 | else { | |
3526 | if (PL_op) | |
3527 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3528 | OP_DESC(PL_op)); |
fa301091 JH |
3529 | else |
3530 | Perl_croak(aTHX_ "Wide character"); | |
3531 | } | |
4b3603a4 | 3532 | } |
fa301091 | 3533 | SvCUR(sv) = len; |
67e989fb | 3534 | } |
560a288e | 3535 | } |
ffebcc3e | 3536 | SvUTF8_off(sv); |
560a288e GS |
3537 | return TRUE; |
3538 | } | |
3539 | ||
c461cf8f JH |
3540 | /* |
3541 | =for apidoc sv_utf8_encode | |
3542 | ||
cd458e05 | 3543 | Convert the PV of an SV to UTF-8-encoded, but then turn off the C<SvUTF8> |
4411f3b6 NIS |
3544 | flag so that it looks like octets again. Used as a building block |
3545 | for encode_utf8 in Encode.xs | |
c461cf8f JH |
3546 | |
3547 | =cut | |
3548 | */ | |
3549 | ||
560a288e GS |
3550 | void |
3551 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3552 | { | |
4411f3b6 | 3553 | (void) sv_utf8_upgrade(sv); |
71410450 NC |
3554 | if (SvIsCOW(sv)) { |
3555 | sv_force_normal_flags(sv, 0); | |
3556 | } | |
3557 | if (SvREADONLY(sv)) { | |
3558 | Perl_croak(aTHX_ PL_no_modify); | |
3559 | } | |
560a288e GS |
3560 | SvUTF8_off(sv); |
3561 | } | |
3562 | ||
4411f3b6 NIS |
3563 | /* |
3564 | =for apidoc sv_utf8_decode | |
3565 | ||
3566 | Convert the octets in the PV from UTF-8 to chars. Scan for validity and then | |
645c22ef | 3567 | turn off SvUTF8 if needed so that we see characters. Used as a building block |
4411f3b6 NIS |
3568 | for decode_utf8 in Encode.xs |
3569 | ||
3570 | =cut | |
3571 | */ | |
3572 | ||
560a288e GS |
3573 | bool |
3574 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3575 | { | |
3576 | if (SvPOK(sv)) { | |
63cd0674 NIS |
3577 | U8 *c; |
3578 | U8 *e; | |
9cbac4c7 | 3579 | |
645c22ef DM |
3580 | /* The octets may have got themselves encoded - get them back as |
3581 | * bytes | |
3582 | */ | |
3583 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3584 | return FALSE; |
3585 | ||
3586 | /* it is actually just a matter of turning the utf8 flag on, but | |
3587 | * we want to make sure everything inside is valid utf8 first. | |
3588 | */ | |
63cd0674 NIS |
3589 | c = (U8 *) SvPVX(sv); |
3590 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 3591 | return FALSE; |
63cd0674 | 3592 | e = (U8 *) SvEND(sv); |
511c2ff0 | 3593 | while (c < e) { |
c4d5f83a NIS |
3594 | U8 ch = *c++; |
3595 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
3596 | SvUTF8_on(sv); |
3597 | break; | |
3598 | } | |
560a288e | 3599 | } |
560a288e GS |
3600 | } |
3601 | return TRUE; | |
3602 | } | |
3603 | ||
d34f9d2e JH |
3604 | /* sv_setsv() is now a macro using Perl_sv_setsv_flags(); |
3605 | * this function provided for binary compatibility only | |
3606 | */ | |
3607 | ||
3608 | void | |
3609 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) | |
3610 | { | |
3611 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); | |
3612 | } | |
3613 | ||
954c1994 GS |
3614 | /* |
3615 | =for apidoc sv_setsv | |
3616 | ||
645c22ef DM |
3617 | Copies the contents of the source SV C<ssv> into the destination SV |
3618 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3619 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3620 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3621 | content of the destination. | |
3622 | ||
3623 | You probably want to use one of the assortment of wrappers, such as | |
3624 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3625 | C<SvSetMagicSV_nosteal>. | |
3626 | ||
8d6d96c1 HS |
3627 | =for apidoc sv_setsv_flags |
3628 | ||
645c22ef DM |
3629 | Copies the contents of the source SV C<ssv> into the destination SV |
3630 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3631 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3632 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3633 | content of the destination. | |
3634 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
3635 | C<ssv> if appropriate, else not. C<sv_setsv> and C<sv_setsv_nomg> are | |
3636 | implemented in terms of this function. | |
3637 | ||
3638 | You probably want to use one of the assortment of wrappers, such as | |
3639 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3640 | C<SvSetMagicSV_nosteal>. | |
3641 | ||
3642 | This is the primary function for copying scalars, and most other | |
3643 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3644 | |
3645 | =cut | |
3646 | */ | |
3647 | ||
3648 | void | |
3649 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3650 | { | |
8990e307 LW |
3651 | register U32 sflags; |
3652 | register int dtype; | |
3653 | register int stype; | |
463ee0b2 | 3654 | |
79072805 LW |
3655 | if (sstr == dstr) |
3656 | return; | |
2213622d | 3657 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 3658 | if (!sstr) |
3280af22 | 3659 | sstr = &PL_sv_undef; |
8990e307 LW |
3660 | stype = SvTYPE(sstr); |
3661 | dtype = SvTYPE(dstr); | |
79072805 | 3662 | |
a0d0e21e | 3663 | SvAMAGIC_off(dstr); |
7d7ce6cc JH |
3664 | if ( SvVOK(dstr) ) |
3665 | { | |
3666 | /* need to nuke the magic */ | |
3667 | mg_free(dstr); | |
3668 | SvRMAGICAL_off(dstr); | |
3669 | } | |
9e7bc3e8 | 3670 | |
463ee0b2 | 3671 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3672 | |
8990e307 | 3673 | switch (stype) { |
79072805 | 3674 | case SVt_NULL: |
aece5585 | 3675 | undef_sstr: |
20408e3c GS |
3676 | if (dtype != SVt_PVGV) { |
3677 | (void)SvOK_off(dstr); | |
3678 | return; | |
3679 | } | |
3680 | break; | |
463ee0b2 | 3681 | case SVt_IV: |
aece5585 GA |
3682 | if (SvIOK(sstr)) { |
3683 | switch (dtype) { | |
3684 | case SVt_NULL: | |
8990e307 | 3685 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3686 | break; |
3687 | case SVt_NV: | |
8990e307 | 3688 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3689 | break; |
3690 | case SVt_RV: | |
3691 | case SVt_PV: | |
a0d0e21e | 3692 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3693 | break; |
3694 | } | |
3695 | (void)SvIOK_only(dstr); | |
3696 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
3697 | if (SvIsUV(sstr)) |
3698 | SvIsUV_on(dstr); | |
27c9684d AP |
3699 | if (SvTAINTED(sstr)) |
3700 | SvTAINT(dstr); | |
aece5585 | 3701 | return; |
8990e307 | 3702 | } |
aece5585 GA |
3703 | goto undef_sstr; |
3704 | ||
463ee0b2 | 3705 | case SVt_NV: |
aece5585 GA |
3706 | if (SvNOK(sstr)) { |
3707 | switch (dtype) { | |
3708 | case SVt_NULL: | |
3709 | case SVt_IV: | |
8990e307 | 3710 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3711 | break; |
3712 | case SVt_RV: | |
3713 | case SVt_PV: | |
3714 | case SVt_PVIV: | |
a0d0e21e | 3715 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3716 | break; |
3717 | } | |
3718 | SvNVX(dstr) = SvNVX(sstr); | |
3719 | (void)SvNOK_only(dstr); | |
27c9684d AP |
3720 | if (SvTAINTED(sstr)) |
3721 | SvTAINT(dstr); | |
aece5585 | 3722 | return; |
8990e307 | 3723 | } |
aece5585 GA |
3724 | goto undef_sstr; |
3725 | ||
ed6116ce | 3726 | case SVt_RV: |
8990e307 | 3727 | if (dtype < SVt_RV) |
ed6116ce | 3728 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3729 | else if (dtype == SVt_PVGV && |
5e8f8cda | 3730 | SvROK(sstr) && SvTYPE(SvRV(sstr)) == SVt_PVGV) { |
c07a80fd | 3731 | sstr = SvRV(sstr); |
a5f75d66 | 3732 | if (sstr == dstr) { |
1d7c1841 GS |
3733 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3734 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3735 | { | |
a5f75d66 | 3736 | GvIMPORTED_on(dstr); |
1d7c1841 | 3737 | } |
a5f75d66 AD |
3738 | GvMULTI_on(dstr); |
3739 | return; | |
3740 | } | |
c07a80fd | 3741 | goto glob_assign; |
3742 | } | |
ed6116ce | 3743 | break; |
463ee0b2 | 3744 | case SVt_PV: |
fc36a67e | 3745 | case SVt_PVFM: |
8990e307 | 3746 | if (dtype < SVt_PV) |
463ee0b2 | 3747 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3748 | break; |
3749 | case SVt_PVIV: | |
8990e307 | 3750 | if (dtype < SVt_PVIV) |
463ee0b2 | 3751 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3752 | break; |
3753 | case SVt_PVNV: | |
8990e307 | 3754 | if (dtype < SVt_PVNV) |
463ee0b2 | 3755 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3756 | break; |
4633a7c4 LW |
3757 | case SVt_PVAV: |
3758 | case SVt_PVHV: | |
3759 | case SVt_PVCV: | |
4633a7c4 | 3760 | case SVt_PVIO: |
533c011a | 3761 | if (PL_op) |
cea2e8a9 | 3762 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 3763 | OP_NAME(PL_op)); |
4633a7c4 | 3764 | else |
cea2e8a9 | 3765 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
3766 | break; |
3767 | ||
79072805 | 3768 | case SVt_PVGV: |
8990e307 | 3769 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3770 | glob_assign: |
a5f75d66 | 3771 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
3772 | char *name = GvNAME(sstr); |
3773 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 3774 | sv_upgrade(dstr, SVt_PVGV); |
14befaf4 | 3775 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 3776 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
3777 | GvNAME(dstr) = savepvn(name, len); |
3778 | GvNAMELEN(dstr) = len; | |
3779 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3780 | } | |
7bac28a0 | 3781 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3782 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3783 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3784 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3785 | GvNAME(dstr)); |
5bd07a3d | 3786 | |
7fb37951 AMS |
3787 | #ifdef GV_UNIQUE_CHECK |
3788 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3789 | Perl_croak(aTHX_ PL_no_modify); |
3790 | } | |
3791 | #endif | |
3792 | ||
a0d0e21e | 3793 | (void)SvOK_off(dstr); |
a5f75d66 | 3794 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3795 | gp_free((GV*)dstr); |
79072805 | 3796 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3797 | if (SvTAINTED(sstr)) |
3798 | SvTAINT(dstr); | |
1d7c1841 GS |
3799 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3800 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3801 | { | |
a5f75d66 | 3802 | GvIMPORTED_on(dstr); |
1d7c1841 | 3803 | } |
a5f75d66 | 3804 | GvMULTI_on(dstr); |
79072805 LW |
3805 | return; |
3806 | } | |
3807 | /* FALL THROUGH */ | |
3808 | ||
3809 | default: | |
8d6d96c1 | 3810 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 3811 | mg_get(sstr); |
eb160463 | 3812 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
3813 | stype = SvTYPE(sstr); |
3814 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3815 | goto glob_assign; | |
3816 | } | |
3817 | } | |
ded42b9f | 3818 | if (stype == SVt_PVLV) |
6fc92669 | 3819 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3820 | else |
eb160463 | 3821 | (void)SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
3822 | } |
3823 | ||
8990e307 LW |
3824 | sflags = SvFLAGS(sstr); |
3825 | ||
3826 | if (sflags & SVf_ROK) { | |
3827 | if (dtype >= SVt_PV) { | |
3828 | if (dtype == SVt_PVGV) { | |
3829 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3830 | SV *dref = 0; | |
a5f75d66 | 3831 | int intro = GvINTRO(dstr); |
a0d0e21e | 3832 | |
7fb37951 AMS |
3833 | #ifdef GV_UNIQUE_CHECK |
3834 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3835 | Perl_croak(aTHX_ PL_no_modify); |
3836 | } | |
3837 | #endif | |
3838 | ||
a0d0e21e | 3839 | if (intro) { |
a5f75d66 | 3840 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3841 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3842 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3843 | } |
a5f75d66 | 3844 | GvMULTI_on(dstr); |
8990e307 LW |
3845 | switch (SvTYPE(sref)) { |
3846 | case SVt_PVAV: | |
a0d0e21e | 3847 | if (intro) |
9b1c5f7e | 3848 | SAVEGENERICSV(GvAV(dstr)); |
a0d0e21e LW |
3849 | else |
3850 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3851 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3852 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3853 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3854 | { | |
a5f75d66 | 3855 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3856 | } |
8990e307 LW |
3857 | break; |
3858 | case SVt_PVHV: | |
a0d0e21e | 3859 | if (intro) |
9b1c5f7e | 3860 | SAVEGENERICSV(GvHV(dstr)); |
a0d0e21e LW |
3861 | else |
3862 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3863 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3864 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3865 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3866 | { | |
a5f75d66 | 3867 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3868 | } |
8990e307 LW |
3869 | break; |
3870 | case SVt_PVCV: | |
8ebc5c01 | 3871 | if (intro) { |
3872 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3873 | SvREFCNT_dec(GvCV(dstr)); | |
3874 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3875 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3876 | PL_sub_generation++; |
8ebc5c01 | 3877 | } |
9b1c5f7e | 3878 | SAVEGENERICSV(GvCV(dstr)); |
8ebc5c01 | 3879 | } |
68dc0745 | 3880 | else |
3881 | dref = (SV*)GvCV(dstr); | |
3882 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3883 | CV* cv = GvCV(dstr); |
4633a7c4 | 3884 | if (cv) { |
68dc0745 | 3885 | if (!GvCVGEN((GV*)dstr) && |
3886 | (CvROOT(cv) || CvXSUB(cv))) | |
3887 | { | |
7bac28a0 | 3888 | /* ahem, death to those who redefine |
3889 | * active sort subs */ | |
3280af22 NIS |
3890 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3891 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3892 | Perl_croak(aTHX_ |
7bac28a0 | 3893 | "Can't redefine active sort subroutine %s", |
3894 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3895 | /* Redefining a sub - warning is mandatory if |
3896 | it was a const and its value changed. */ | |
3897 | if (ckWARN(WARN_REDEFINE) | |
3898 | || (CvCONST(cv) | |
3899 | && (!CvCONST((CV*)sref) | |
3900 | || sv_cmp(cv_const_sv(cv), | |
3901 | cv_const_sv((CV*)sref))))) | |
3902 | { | |
9014280d | 3903 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 3904 | CvCONST(cv) |
910764e6 RGS |
3905 | ? "Constant subroutine %s::%s redefined" |
3906 | : "Subroutine %s::%s redefined", | |
3907 | HvNAME(GvSTASH((GV*)dstr)), | |
beab0874 JT |
3908 | GvENAME((GV*)dstr)); |
3909 | } | |
9607fc9c | 3910 | } |
fb24441d RGS |
3911 | if (!intro) |
3912 | cv_ckproto(cv, (GV*)dstr, | |
3913 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 3914 | } |
a5f75d66 | 3915 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 3916 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 3917 | GvASSUMECV_on(dstr); |
3280af22 | 3918 | PL_sub_generation++; |
a5f75d66 | 3919 | } |
39bac7f7 | 3920 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
3921 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3922 | { | |
a5f75d66 | 3923 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 3924 | } |
8990e307 | 3925 | break; |
91bba347 LW |
3926 | case SVt_PVIO: |
3927 | if (intro) | |
9b1c5f7e | 3928 | SAVEGENERICSV(GvIOp(dstr)); |
91bba347 LW |
3929 | else |
3930 | dref = (SV*)GvIOp(dstr); | |
3931 | GvIOp(dstr) = (IO*)sref; | |
3932 | break; | |
f4d13ee9 JH |
3933 | case SVt_PVFM: |
3934 | if (intro) | |
9b1c5f7e | 3935 | SAVEGENERICSV(GvFORM(dstr)); |
f4d13ee9 JH |
3936 | else |
3937 | dref = (SV*)GvFORM(dstr); | |
3938 | GvFORM(dstr) = (CV*)sref; | |
3939 | break; | |
8990e307 | 3940 | default: |
a0d0e21e | 3941 | if (intro) |
9b1c5f7e | 3942 | SAVEGENERICSV(GvSV(dstr)); |
a0d0e21e LW |
3943 | else |
3944 | dref = (SV*)GvSV(dstr); | |
8990e307 | 3945 | GvSV(dstr) = sref; |
39bac7f7 | 3946 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
3947 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3948 | { | |
a5f75d66 | 3949 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 3950 | } |
8990e307 LW |
3951 | break; |
3952 | } | |
3953 | if (dref) | |
3954 | SvREFCNT_dec(dref); | |
27c9684d AP |
3955 | if (SvTAINTED(sstr)) |
3956 | SvTAINT(dstr); | |
8990e307 LW |
3957 | return; |
3958 | } | |
a0d0e21e | 3959 | if (SvPVX(dstr)) { |
760ac839 | 3960 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
3961 | if (SvLEN(dstr)) |
3962 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
3963 | SvLEN(dstr)=SvCUR(dstr)=0; |
3964 | } | |
8990e307 | 3965 | } |
a0d0e21e | 3966 | (void)SvOK_off(dstr); |
8990e307 | 3967 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 3968 | SvROK_on(dstr); |
8990e307 | 3969 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
3970 | SvNOKp_on(dstr); |
3971 | /* Only set the public OK flag if the source has public OK. */ | |
3972 | if (sflags & SVf_NOK) | |
3973 | SvFLAGS(dstr) |= SVf_NOK; | |
ed6116ce LW |
3974 | SvNVX(dstr) = SvNVX(sstr); |
3975 | } | |
8990e307 | 3976 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
3977 | (void)SvIOKp_on(dstr); |
3978 | if (sflags & SVf_IOK) | |
3979 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 3980 | if (sflags & SVf_IVisUV) |
25da4f38 | 3981 | SvIsUV_on(dstr); |
3332b3c1 | 3982 | SvIVX(dstr) = SvIVX(sstr); |
ed6116ce | 3983 | } |
a0d0e21e LW |
3984 | if (SvAMAGIC(sstr)) { |
3985 | SvAMAGIC_on(dstr); | |
3986 | } | |
ed6116ce | 3987 | } |
8990e307 | 3988 | else if (sflags & SVp_POK) { |
79072805 LW |
3989 | |
3990 | /* | |
3991 | * Check to see if we can just swipe the string. If so, it's a | |
3992 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
3993 | * It might even be a win on short strings if SvPVX(dstr) |
3994 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
3995 | */ |
3996 | ||
ff68c719 | 3997 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 3998 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
1c846c1f | 3999 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ |
4c8f17b9 | 4000 | SvLEN(sstr) && /* and really is a string */ |
645c22ef DM |
4001 | /* and won't be needed again, potentially */ |
4002 | !(PL_op && PL_op->op_type == OP_AASSIGN)) | |
a5f75d66 | 4003 | { |
adbc6bb1 | 4004 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
4005 | if (SvOOK(dstr)) { |
4006 | SvFLAGS(dstr) &= ~SVf_OOK; | |
4007 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
4008 | } | |
50483b2c | 4009 | else if (SvLEN(dstr)) |
a5f75d66 | 4010 | Safefree(SvPVX(dstr)); |
79072805 | 4011 | } |
a5f75d66 | 4012 | (void)SvPOK_only(dstr); |
463ee0b2 | 4013 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
4014 | SvLEN_set(dstr, SvLEN(sstr)); |
4015 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f | 4016 | |
79072805 | 4017 | SvTEMP_off(dstr); |
645c22ef | 4018 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ |
79072805 LW |
4019 | SvPV_set(sstr, Nullch); |
4020 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
4021 | SvCUR_set(sstr, 0); |
4022 | SvTEMP_off(sstr); | |
79072805 | 4023 | } |
645c22ef | 4024 | else { /* have to copy actual string */ |
8990e307 | 4025 | STRLEN len = SvCUR(sstr); |
645c22ef | 4026 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
8990e307 LW |
4027 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
4028 | SvCUR_set(dstr, len); | |
4029 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 4030 | (void)SvPOK_only(dstr); |
79072805 | 4031 | } |
9aa983d2 | 4032 | if (sflags & SVf_UTF8) |
a7cb1f99 | 4033 | SvUTF8_on(dstr); |
79072805 | 4034 | /*SUPPRESS 560*/ |
8990e307 | 4035 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4036 | SvNOKp_on(dstr); |
4037 | if (sflags & SVf_NOK) | |
4038 | SvFLAGS(dstr) |= SVf_NOK; | |
463ee0b2 | 4039 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 4040 | } |
8990e307 | 4041 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4042 | (void)SvIOKp_on(dstr); |
4043 | if (sflags & SVf_IOK) | |
4044 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4045 | if (sflags & SVf_IVisUV) |
25da4f38 | 4046 | SvIsUV_on(dstr); |
463ee0b2 | 4047 | SvIVX(dstr) = SvIVX(sstr); |
79072805 | 4048 | } |
7d7ce6cc JH |
4049 | if ( SvVOK(sstr) ) { |
4050 | MAGIC *smg = mg_find(sstr,PERL_MAGIC_vstring); | |
4051 | sv_magic(dstr, NULL, PERL_MAGIC_vstring, | |
4052 | smg->mg_ptr, smg->mg_len); | |
4053 | SvRMAGICAL_on(dstr); | |
4054 | } | |
79072805 | 4055 | } |
8990e307 | 4056 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
4057 | if (sflags & SVf_IOK) |
4058 | (void)SvIOK_only(dstr); | |
4059 | else { | |
9cbac4c7 DM |
4060 | (void)SvOK_off(dstr); |
4061 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
4062 | } |
4063 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 4064 | if (sflags & SVf_IVisUV) |
25da4f38 | 4065 | SvIsUV_on(dstr); |
3332b3c1 JH |
4066 | SvIVX(dstr) = SvIVX(sstr); |
4067 | if (sflags & SVp_NOK) { | |
4068 | if (sflags & SVf_NOK) | |
4069 | (void)SvNOK_on(dstr); | |
4070 | else | |
4071 | (void)SvNOKp_on(dstr); | |
4072 | SvNVX(dstr) = SvNVX(sstr); | |
4073 | } | |
4074 | } | |
4075 | else if (sflags & SVp_NOK) { | |
4076 | if (sflags & SVf_NOK) | |
4077 | (void)SvNOK_only(dstr); | |
4078 | else { | |
9cbac4c7 | 4079 | (void)SvOK_off(dstr); |
3332b3c1 JH |
4080 | SvNOKp_on(dstr); |
4081 | } | |
4082 | SvNVX(dstr) = SvNVX(sstr); | |
79072805 LW |
4083 | } |
4084 | else { | |
20408e3c | 4085 | if (dtype == SVt_PVGV) { |
e476b1b5 | 4086 | if (ckWARN(WARN_MISC)) |
9014280d | 4087 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
4088 | } |
4089 | else | |
4090 | (void)SvOK_off(dstr); | |
a0d0e21e | 4091 | } |
27c9684d AP |
4092 | if (SvTAINTED(sstr)) |
4093 | SvTAINT(dstr); | |
79072805 LW |
4094 | } |
4095 | ||
954c1994 GS |
4096 | /* |
4097 | =for apidoc sv_setsv_mg | |
4098 | ||
4099 | Like C<sv_setsv>, but also handles 'set' magic. | |
4100 | ||
4101 | =cut | |
4102 | */ | |
4103 | ||
79072805 | 4104 | void |
864dbfa3 | 4105 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4106 | { |
4107 | sv_setsv(dstr,sstr); | |
4108 | SvSETMAGIC(dstr); | |
4109 | } | |
4110 | ||
954c1994 GS |
4111 | /* |
4112 | =for apidoc sv_setpvn | |
4113 | ||
4114 | Copies a string into an SV. The C<len> parameter indicates the number of | |
611e9550 NC |
4115 | bytes to be copied. If the C<ptr> argument is NULL the SV will become |
4116 | undefined. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
954c1994 GS |
4117 | |
4118 | =cut | |
4119 | */ | |
4120 | ||
ef50df4b | 4121 | void |
864dbfa3 | 4122 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4123 | { |
c6f8c383 | 4124 | register char *dptr; |
22c522df | 4125 | |
2213622d | 4126 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4127 | if (!ptr) { |
a0d0e21e | 4128 | (void)SvOK_off(sv); |
463ee0b2 LW |
4129 | return; |
4130 | } | |
22c522df JH |
4131 | else { |
4132 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
4133 | IV iv = len; | |
9c5ffd7c JH |
4134 | if (iv < 0) |
4135 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4136 | } |
6fc92669 | 4137 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4138 | |
79072805 | 4139 | SvGROW(sv, len + 1); |
c6f8c383 GA |
4140 | dptr = SvPVX(sv); |
4141 | Move(ptr,dptr,len,char); | |
4142 | dptr[len] = '\0'; | |
79072805 | 4143 | SvCUR_set(sv, len); |
1aa99e6b | 4144 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4145 | SvTAINT(sv); |
79072805 LW |
4146 | } |
4147 | ||
954c1994 GS |
4148 | /* |
4149 | =for apidoc sv_setpvn_mg | |
4150 | ||
4151 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4152 | ||
4153 | =cut | |
4154 | */ | |
4155 | ||
79072805 | 4156 | void |
864dbfa3 | 4157 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4158 | { |
4159 | sv_setpvn(sv,ptr,len); | |
4160 | SvSETMAGIC(sv); | |
4161 | } | |
4162 | ||
954c1994 GS |
4163 | /* |
4164 | =for apidoc sv_setpv | |
4165 | ||
4166 | Copies a string into an SV. The string must be null-terminated. Does not | |
4167 | handle 'set' magic. See C<sv_setpv_mg>. | |
4168 | ||
4169 | =cut | |
4170 | */ | |
4171 | ||
ef50df4b | 4172 | void |
864dbfa3 | 4173 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4174 | { |
4175 | register STRLEN len; | |
4176 | ||
2213622d | 4177 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 4178 | if (!ptr) { |
a0d0e21e | 4179 | (void)SvOK_off(sv); |
463ee0b2 LW |
4180 | return; |
4181 | } | |
79072805 | 4182 | len = strlen(ptr); |
6fc92669 | 4183 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4184 | |
79072805 | 4185 | SvGROW(sv, len + 1); |
463ee0b2 | 4186 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4187 | SvCUR_set(sv, len); |
1aa99e6b | 4188 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4189 | SvTAINT(sv); |
4190 | } | |
4191 | ||
954c1994 GS |
4192 | /* |
4193 | =for apidoc sv_setpv_mg | |
4194 | ||
4195 | Like C<sv_setpv>, but also handles 'set' magic. | |
4196 | ||
4197 | =cut | |
4198 | */ | |
4199 | ||
463ee0b2 | 4200 | void |
864dbfa3 | 4201 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4202 | { |
4203 | sv_setpv(sv,ptr); | |
4204 | SvSETMAGIC(sv); | |
4205 | } | |
4206 | ||
954c1994 GS |
4207 | /* |
4208 | =for apidoc sv_usepvn | |
4209 | ||
4210 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4211 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4212 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4213 | string length, C<len>, must be supplied. This function will realloc the | |
4214 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4215 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4216 | See C<sv_usepvn_mg>. | |
4217 | ||
4218 | =cut | |
4219 | */ | |
4220 | ||
ef50df4b | 4221 | void |
864dbfa3 | 4222 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4223 | { |
2213622d | 4224 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 4225 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4226 | if (!ptr) { |
a0d0e21e | 4227 | (void)SvOK_off(sv); |
463ee0b2 LW |
4228 | return; |
4229 | } | |
a0ed51b3 | 4230 | (void)SvOOK_off(sv); |
50483b2c | 4231 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
4232 | Safefree(SvPVX(sv)); |
4233 | Renew(ptr, len+1, char); | |
4234 | SvPVX(sv) = ptr; | |
4235 | SvCUR_set(sv, len); | |
4236 | SvLEN_set(sv, len+1); | |
4237 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4238 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4239 | SvTAINT(sv); |
79072805 LW |
4240 | } |
4241 | ||
954c1994 GS |
4242 | /* |
4243 | =for apidoc sv_usepvn_mg | |
4244 | ||
4245 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4246 | ||
4247 | =cut | |
4248 | */ | |
4249 | ||
ef50df4b | 4250 | void |
864dbfa3 | 4251 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4252 | { |
51c1089b | 4253 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4254 | SvSETMAGIC(sv); |
4255 | } | |
4256 | ||
645c22ef DM |
4257 | /* |
4258 | =for apidoc sv_force_normal_flags | |
4259 | ||
4260 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4261 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4262 | an xpvmg. The C<flags> parameter gets passed to C<sv_unref_flags()> | |
4263 | when unrefing. C<sv_force_normal> calls this function with flags set to 0. | |
4264 | ||
4265 | =cut | |
4266 | */ | |
4267 | ||
6fc92669 | 4268 | void |
840a7b70 | 4269 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4270 | { |
2213622d | 4271 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4272 | if (SvFAKE(sv)) { |
4273 | char *pvx = SvPVX(sv); | |
4274 | STRLEN len = SvCUR(sv); | |
4275 | U32 hash = SvUVX(sv); | |
1624793d NC |
4276 | SvFAKE_off(sv); |
4277 | SvREADONLY_off(sv); | |
1c846c1f NIS |
4278 | SvGROW(sv, len + 1); |
4279 | Move(pvx,SvPVX(sv),len,char); | |
4280 | *SvEND(sv) = '\0'; | |
25716404 | 4281 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)len : len, hash); |
1c846c1f | 4282 | } |
ef7b71f0 | 4283 | else if (IN_PERL_RUNTIME) |
cea2e8a9 | 4284 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4285 | } |
2213622d | 4286 | if (SvROK(sv)) |
840a7b70 | 4287 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4288 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4289 | sv_unglob(sv); | |
0f15f207 | 4290 | } |
1c846c1f | 4291 | |
645c22ef DM |
4292 | /* |
4293 | =for apidoc sv_force_normal | |
4294 | ||
4295 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4296 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4297 | an xpvmg. See also C<sv_force_normal_flags>. | |
4298 | ||
4299 | =cut | |
4300 | */ | |
4301 | ||
840a7b70 IZ |
4302 | void |
4303 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4304 | { | |
4305 | sv_force_normal_flags(sv, 0); | |
4306 | } | |
4307 | ||
954c1994 GS |
4308 | /* |
4309 | =for apidoc sv_chop | |
4310 | ||
1c846c1f | 4311 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4312 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4313 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4314 | string. Uses the "OOK hack". |
b9219079 JH |
4315 | Beware: after this function returns, C<ptr> and SvPVX(sv) may no longer |
4316 | refer to the same chunk of data. | |
954c1994 GS |
4317 | |
4318 | =cut | |
4319 | */ | |
4320 | ||
79072805 | 4321 | void |
645c22ef | 4322 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
4323 | { |
4324 | register STRLEN delta; | |
a0d0e21e | 4325 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4326 | return; |
b9219079 | 4327 | delta = ptr - SvPVX(sv); |
2213622d | 4328 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4329 | if (SvTYPE(sv) < SVt_PVIV) |
4330 | sv_upgrade(sv,SVt_PVIV); | |
4331 | ||
4332 | if (!SvOOK(sv)) { | |
50483b2c JD |
4333 | if (!SvLEN(sv)) { /* make copy of shared string */ |
4334 | char *pvx = SvPVX(sv); | |
4335 | STRLEN len = SvCUR(sv); | |
4336 | SvGROW(sv, len + 1); | |
4337 | Move(pvx,SvPVX(sv),len,char); | |
4338 | *SvEND(sv) = '\0'; | |
4339 | } | |
463ee0b2 | 4340 | SvIVX(sv) = 0; |
e33c26d0 JH |
4341 | /* Same SvOOK_on but SvOOK_on does a SvIOK_off |
4342 | and we do that anyway inside the SvNIOK_off | |
4343 | */ | |
4344 | SvFLAGS(sv) |= SVf_OOK; | |
79072805 | 4345 | } |
e33c26d0 | 4346 | SvNIOK_off(sv); |
79072805 LW |
4347 | SvLEN(sv) -= delta; |
4348 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
4349 | SvPVX(sv) += delta; |
4350 | SvIVX(sv) += delta; | |
79072805 LW |
4351 | } |
4352 | ||
d34f9d2e JH |
4353 | /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags(); |
4354 | * this function provided for binary compatibility only | |
4355 | */ | |
4356 | ||
4357 | void | |
4358 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) | |
4359 | { | |
4360 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); | |
4361 | } | |
4362 | ||
954c1994 GS |
4363 | /* |
4364 | =for apidoc sv_catpvn | |
4365 | ||
4366 | Concatenates the string onto the end of the string which is in the SV. The | |
cd458e05 JH |
4367 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4368 | status set, then the bytes appended should be valid UTF-8. | |
d5ce4a7c | 4369 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. |
954c1994 | 4370 | |
8d6d96c1 HS |
4371 | =for apidoc sv_catpvn_flags |
4372 | ||
4373 | Concatenates the string onto the end of the string which is in the SV. The | |
cd458e05 JH |
4374 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4375 | status set, then the bytes appended should be valid UTF-8. | |
8d6d96c1 HS |
4376 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if |
4377 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4378 | in terms of this function. | |
4379 | ||
4380 | =cut | |
4381 | */ | |
4382 | ||
4383 | void | |
4384 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4385 | { | |
4386 | STRLEN dlen; | |
4387 | char *dstr; | |
4388 | ||
4389 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
4390 | SvGROW(dsv, dlen + slen + 1); | |
4391 | if (sstr == dstr) | |
4392 | sstr = SvPVX(dsv); | |
4393 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
4394 | SvCUR(dsv) += slen; | |
4395 | *SvEND(dsv) = '\0'; | |
4396 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4397 | SvTAINT(dsv); | |
79072805 LW |
4398 | } |
4399 | ||
954c1994 GS |
4400 | /* |
4401 | =for apidoc sv_catpvn_mg | |
4402 | ||
4403 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4404 | ||
4405 | =cut | |
4406 | */ | |
4407 | ||
79072805 | 4408 | void |
864dbfa3 | 4409 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4410 | { |
4411 | sv_catpvn(sv,ptr,len); | |
4412 | SvSETMAGIC(sv); | |
4413 | } | |
4414 | ||
d34f9d2e JH |
4415 | /* sv_catsv() is now a macro using Perl_sv_catsv_flags(); |
4416 | * this function provided for binary compatibility only | |
4417 | */ | |
4418 | ||
4419 | void | |
4420 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4421 | { | |
4422 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4423 | } | |
4424 | ||
954c1994 GS |
4425 | /* |
4426 | =for apidoc sv_catsv | |
4427 | ||
13e8c8e3 JH |
4428 | Concatenates the string from SV C<ssv> onto the end of the string in |
4429 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4430 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4431 | |
8d6d96c1 HS |
4432 | =for apidoc sv_catsv_flags |
4433 | ||
4434 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4435 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4436 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4437 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4438 | ||
4439 | =cut */ | |
4440 | ||
ef50df4b | 4441 | void |
8d6d96c1 | 4442 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4443 | { |
13e8c8e3 JH |
4444 | char *spv; |
4445 | STRLEN slen; | |
46199a12 | 4446 | if (!ssv) |
79072805 | 4447 | return; |
46199a12 | 4448 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
4449 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4450 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4451 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4452 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4453 | dsv->sv_flags doesn't have that bit set. |
4454 | Andy Dougherty 12 Oct 2001 | |
4455 | */ | |
4456 | I32 sutf8 = DO_UTF8(ssv); | |
4457 | I32 dutf8; | |
13e8c8e3 | 4458 | |
8d6d96c1 HS |
4459 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4460 | mg_get(dsv); | |
4461 | dutf8 = DO_UTF8(dsv); | |
4462 | ||
4463 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4464 | if (dutf8) { |
46199a12 | 4465 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4466 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4467 | |
46199a12 | 4468 | sv_utf8_upgrade(csv); |
8d6d96c1 | 4469 | spv = SvPV(csv, slen); |
13e8c8e3 | 4470 | } |
8d6d96c1 HS |
4471 | else |
4472 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4473 | } |
8d6d96c1 | 4474 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4475 | } |
79072805 LW |
4476 | } |
4477 | ||
954c1994 GS |
4478 | /* |
4479 | =for apidoc sv_catsv_mg | |
4480 | ||
4481 | Like C<sv_catsv>, but also handles 'set' magic. | |
4482 | ||
4483 | =cut | |
4484 | */ | |
4485 | ||
79072805 | 4486 | void |
46199a12 | 4487 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4488 | { |
46199a12 JH |
4489 | sv_catsv(dsv,ssv); |
4490 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4491 | } |
4492 | ||
954c1994 GS |
4493 | /* |
4494 | =for apidoc sv_catpv | |
4495 | ||
4496 | Concatenates the string onto the end of the string which is in the SV. | |
cd458e05 JH |
4497 | If the SV has the UTF-8 status set, then the bytes appended should be |
4498 | valid UTF-8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4499 | |
d5ce4a7c | 4500 | =cut */ |
954c1994 | 4501 | |
ef50df4b | 4502 | void |
0c981600 | 4503 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4504 | { |
4505 | register STRLEN len; | |
463ee0b2 | 4506 | STRLEN tlen; |
748a9306 | 4507 | char *junk; |
79072805 | 4508 | |
0c981600 | 4509 | if (!ptr) |
79072805 | 4510 | return; |
748a9306 | 4511 | junk = SvPV_force(sv, tlen); |
0c981600 | 4512 | len = strlen(ptr); |
463ee0b2 | 4513 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
4514 | if (ptr == junk) |
4515 | ptr = SvPVX(sv); | |
4516 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
79072805 | 4517 | SvCUR(sv) += len; |
d41ff1b8 | 4518 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4519 | SvTAINT(sv); |
79072805 LW |
4520 | } |
4521 | ||
954c1994 GS |
4522 | /* |
4523 | =for apidoc sv_catpv_mg | |
4524 | ||
4525 | Like C<sv_catpv>, but also handles 'set' magic. | |
4526 | ||
4527 | =cut | |
4528 | */ | |
4529 | ||
ef50df4b | 4530 | void |
0c981600 | 4531 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4532 | { |
0c981600 | 4533 | sv_catpv(sv,ptr); |
ef50df4b GS |
4534 | SvSETMAGIC(sv); |
4535 | } | |
4536 | ||
645c22ef DM |
4537 | /* |
4538 | =for apidoc newSV | |
4539 | ||
4540 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4541 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4542 | macro. | |
4543 | ||
4544 | =cut | |
4545 | */ | |
4546 | ||
79072805 | 4547 | SV * |
864dbfa3 | 4548 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4549 | { |
4550 | register SV *sv; | |
1c846c1f | 4551 | |
4561caa4 | 4552 | new_SV(sv); |
79072805 LW |
4553 | if (len) { |
4554 | sv_upgrade(sv, SVt_PV); | |
4555 | SvGROW(sv, len + 1); | |
4556 | } | |
4557 | return sv; | |
4558 | } | |
954c1994 | 4559 | /* |
92110913 | 4560 | =for apidoc sv_magicext |
954c1994 | 4561 | |
68795e93 | 4562 | Adds magic to an SV, upgrading it if necessary. Applies the |
92110913 NIS |
4563 | supplied vtable and returns pointer to the magic added. |
4564 | ||
4565 | Note that sv_magicext will allow things that sv_magic will not. | |
68795e93 | 4566 | In particular you can add magic to SvREADONLY SVs and and more than |
92110913 | 4567 | one instance of the same 'how' |
645c22ef | 4568 | |
92110913 | 4569 | I C<namelen> is greater then zero then a savepvn() I<copy> of C<name> is stored, |
68795e93 NIS |
4570 | if C<namelen> is zero then C<name> is stored as-is and - as another special |
4571 | case - if C<(name && namelen == HEf_SVKEY)> then C<name> is assumed to contain | |
92110913 NIS |
4572 | an C<SV*> and has its REFCNT incremented |
4573 | ||
4574 | (This is now used as a subroutine by sv_magic.) | |
954c1994 GS |
4575 | |
4576 | =cut | |
4577 | */ | |
92110913 NIS |
4578 | MAGIC * |
4579 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, MGVTBL *vtable, | |
4580 | const char* name, I32 namlen) | |
79072805 LW |
4581 | { |
4582 | MAGIC* mg; | |
68795e93 | 4583 | |
92110913 NIS |
4584 | if (SvTYPE(sv) < SVt_PVMG) { |
4585 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 4586 | } |
79072805 LW |
4587 | Newz(702,mg, 1, MAGIC); |
4588 | mg->mg_moremagic = SvMAGIC(sv); | |
79072805 | 4589 | SvMAGIC(sv) = mg; |
75f9d97a | 4590 | |
18808301 | 4591 | /* Some magic sontains a reference loop, where the sv and object refer to |
bb03859b RS |
4592 | each other. To prevent a reference loop that would prevent such |
4593 | objects being freed, we look for such loops and if we find one we | |
87f0b213 JH |
4594 | avoid incrementing the object refcount. |
4595 | ||
4596 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
8ccffa6a | 4597 | have its REFCNT incremented to keep it in existence. |
87f0b213 JH |
4598 | |
4599 | */ | |
14befaf4 DM |
4600 | if (!obj || obj == sv || |
4601 | how == PERL_MAGIC_arylen || | |
4602 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
4603 | (SvTYPE(obj) == SVt_PVGV && |
4604 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4605 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 4606 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 4607 | { |
8990e307 | 4608 | mg->mg_obj = obj; |
75f9d97a | 4609 | } |
85e6fe83 | 4610 | else { |
8990e307 | 4611 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4612 | mg->mg_flags |= MGf_REFCOUNTED; |
4613 | } | |
8ccffa6a YST |
4614 | |
4615 | /* Normal self-ties simply pass a null object, and instead of | |
4616 | using mg_obj directly, use the SvTIED_obj macro to produce a | |
4617 | new RV as needed. For glob "self-ties", we are tieing the PVIO | |
4618 | with an RV obj pointing to the glob containing the PVIO. In | |
4619 | this case, to avoid a reference loop, we need to weaken the | |
4620 | reference. | |
4621 | */ | |
4622 | ||
4623 | if (how == PERL_MAGIC_tiedscalar && SvTYPE(sv) == SVt_PVIO && | |
4624 | obj && SvROK(obj) && GvIO(SvRV(obj)) == (IO*)sv) | |
4625 | { | |
4626 | sv_rvweaken(obj); | |
4627 | } | |
4628 | ||
79072805 | 4629 | mg->mg_type = how; |
565764a8 | 4630 | mg->mg_len = namlen; |
9cbac4c7 | 4631 | if (name) { |
92110913 | 4632 | if (namlen > 0) |
1edc1566 | 4633 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4634 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4635 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4636 | else |
92110913 | 4637 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4638 | } |
92110913 | 4639 | mg->mg_virtual = vtable; |
68795e93 | 4640 | |
92110913 NIS |
4641 | mg_magical(sv); |
4642 | if (SvGMAGICAL(sv)) | |
4643 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4644 | return mg; | |
4645 | } | |
4646 | ||
4647 | /* | |
4648 | =for apidoc sv_magic | |
1c846c1f | 4649 | |
92110913 NIS |
4650 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4651 | then adds a new magic item of type C<how> to the head of the magic list. | |
4652 | ||
4653 | =cut | |
4654 | */ | |
4655 | ||
4656 | void | |
4657 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4658 | { |
92110913 NIS |
4659 | MAGIC* mg; |
4660 | MGVTBL *vtable = 0; | |
4661 | ||
4662 | if (SvREADONLY(sv)) { | |
ef7b71f0 | 4663 | if (IN_PERL_RUNTIME |
92110913 NIS |
4664 | && how != PERL_MAGIC_regex_global |
4665 | && how != PERL_MAGIC_bm | |
4666 | && how != PERL_MAGIC_fm | |
4667 | && how != PERL_MAGIC_sv | |
6125ae81 | 4668 | && how != PERL_MAGIC_backref |
92110913 NIS |
4669 | ) |
4670 | { | |
4671 | Perl_croak(aTHX_ PL_no_modify); | |
4672 | } | |
4673 | } | |
4674 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
4675 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
4676 | /* sv_magic() refuses to add a magic of the same 'how' as an |
4677 | existing one | |
92110913 NIS |
4678 | */ |
4679 | if (how == PERL_MAGIC_taint) | |
4680 | mg->mg_len |= 1; | |
4681 | return; | |
4682 | } | |
4683 | } | |
68795e93 | 4684 | |
79072805 | 4685 | switch (how) { |
14befaf4 | 4686 | case PERL_MAGIC_sv: |
92110913 | 4687 | vtable = &PL_vtbl_sv; |
79072805 | 4688 | break; |
14befaf4 | 4689 | case PERL_MAGIC_overload: |
92110913 | 4690 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 4691 | break; |
14befaf4 | 4692 | case PERL_MAGIC_overload_elem: |
92110913 | 4693 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 4694 | break; |
14befaf4 | 4695 | case PERL_MAGIC_overload_table: |
92110913 | 4696 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 4697 | break; |
14befaf4 | 4698 | case PERL_MAGIC_bm: |
92110913 | 4699 | vtable = &PL_vtbl_bm; |
79072805 | 4700 | break; |
14befaf4 | 4701 | case PERL_MAGIC_regdata: |
92110913 | 4702 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 4703 | break; |
14befaf4 | 4704 | case PERL_MAGIC_regdatum: |
92110913 | 4705 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 4706 | break; |
14befaf4 | 4707 | case PERL_MAGIC_env: |
92110913 | 4708 | vtable = &PL_vtbl_env; |
79072805 | 4709 | break; |
14befaf4 | 4710 | case PERL_MAGIC_fm: |
92110913 | 4711 | vtable = &PL_vtbl_fm; |
55497cff | 4712 | break; |
14befaf4 | 4713 | case PERL_MAGIC_envelem: |
92110913 | 4714 | vtable = &PL_vtbl_envelem; |
79072805 | 4715 | break; |
14befaf4 | 4716 | case PERL_MAGIC_regex_global: |
92110913 | 4717 | vtable = &PL_vtbl_mglob; |
93a17b20 | 4718 | break; |
14befaf4 | 4719 | case PERL_MAGIC_isa: |
92110913 | 4720 | vtable = &PL_vtbl_isa; |
463ee0b2 | 4721 | break; |
14befaf4 | 4722 | case PERL_MAGIC_isaelem: |
92110913 | 4723 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 4724 | break; |
14befaf4 | 4725 | case PERL_MAGIC_nkeys: |
92110913 | 4726 | vtable = &PL_vtbl_nkeys; |
16660edb | 4727 | break; |
14befaf4 | 4728 | case PERL_MAGIC_dbfile: |
92110913 | 4729 | vtable = 0; |
93a17b20 | 4730 | break; |
14befaf4 | 4731 | case PERL_MAGIC_dbline: |
92110913 | 4732 | vtable = &PL_vtbl_dbline; |
79072805 | 4733 | break; |
4d1ff10f | 4734 | #ifdef USE_5005THREADS |
14befaf4 | 4735 | case PERL_MAGIC_mutex: |
92110913 | 4736 | vtable = &PL_vtbl_mutex; |
f93b4edd | 4737 | break; |
4d1ff10f | 4738 | #endif /* USE_5005THREADS */ |
36477c24 | 4739 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 4740 | case PERL_MAGIC_collxfrm: |
92110913 | 4741 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 4742 | break; |
36477c24 | 4743 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 4744 | case PERL_MAGIC_tied: |
92110913 | 4745 | vtable = &PL_vtbl_pack; |
463ee0b2 | 4746 | break; |
14befaf4 DM |
4747 | case PERL_MAGIC_tiedelem: |
4748 | case PERL_MAGIC_tiedscalar: | |
92110913 | 4749 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 4750 | break; |
14befaf4 | 4751 | case PERL_MAGIC_qr: |
92110913 | 4752 | vtable = &PL_vtbl_regexp; |
c277df42 | 4753 | break; |
14befaf4 | 4754 | case PERL_MAGIC_sig: |
92110913 | 4755 | vtable = &PL_vtbl_sig; |
79072805 | 4756 | break; |
14befaf4 | 4757 | case PERL_MAGIC_sigelem: |
92110913 | 4758 | vtable = &PL_vtbl_sigelem; |
79072805 | 4759 | break; |
14befaf4 | 4760 | case PERL_MAGIC_taint: |
92110913 | 4761 | vtable = &PL_vtbl_taint; |
463ee0b2 | 4762 | break; |
14befaf4 | 4763 | case PERL_MAGIC_uvar: |
92110913 | 4764 | vtable = &PL_vtbl_uvar; |
79072805 | 4765 | break; |
14befaf4 | 4766 | case PERL_MAGIC_vec: |
92110913 | 4767 | vtable = &PL_vtbl_vec; |
79072805 | 4768 | break; |
7d7ce6cc JH |
4769 | case PERL_MAGIC_vstring: |
4770 | vtable = 0; | |
4771 | break; | |
323eb6b5 JH |
4772 | case PERL_MAGIC_utf8: |
4773 | vtable = &PL_vtbl_utf8; | |
4774 | break; | |
14befaf4 | 4775 | case PERL_MAGIC_substr: |
92110913 | 4776 | vtable = &PL_vtbl_substr; |
79072805 | 4777 | break; |
14befaf4 | 4778 | case PERL_MAGIC_defelem: |
92110913 | 4779 | vtable = &PL_vtbl_defelem; |
5f05dabc | 4780 | break; |
14befaf4 | 4781 | case PERL_MAGIC_glob: |
92110913 | 4782 | vtable = &PL_vtbl_glob; |
79072805 | 4783 | break; |
14befaf4 | 4784 | case PERL_MAGIC_arylen: |
92110913 | 4785 | vtable = &PL_vtbl_arylen; |
79072805 | 4786 | break; |
14befaf4 | 4787 | case PERL_MAGIC_pos: |
92110913 | 4788 | vtable = &PL_vtbl_pos; |
a0d0e21e | 4789 | break; |
14befaf4 | 4790 | case PERL_MAGIC_backref: |
92110913 | 4791 | vtable = &PL_vtbl_backref; |
810b8aa5 | 4792 | break; |
14befaf4 DM |
4793 | case PERL_MAGIC_ext: |
4794 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
4795 | /* Useful for attaching extension internal data to perl vars. */ |
4796 | /* Note that multiple extensions may clash if magical scalars */ | |
4797 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 4798 | break; |
79072805 | 4799 | default: |
14befaf4 | 4800 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 4801 | } |
68795e93 | 4802 | |
92110913 NIS |
4803 | /* Rest of work is done else where */ |
4804 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); | |
68795e93 | 4805 | |
92110913 NIS |
4806 | switch (how) { |
4807 | case PERL_MAGIC_taint: | |
4808 | mg->mg_len = 1; | |
4809 | break; | |
4810 | case PERL_MAGIC_ext: | |
4811 | case PERL_MAGIC_dbfile: | |
4812 | SvRMAGICAL_on(sv); | |
4813 | break; | |
4814 | } | |
463ee0b2 LW |
4815 | } |
4816 | ||
c461cf8f JH |
4817 | /* |
4818 | =for apidoc sv_unmagic | |
4819 | ||
645c22ef | 4820 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
4821 | |
4822 | =cut | |
4823 | */ | |
4824 | ||
463ee0b2 | 4825 | int |
864dbfa3 | 4826 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
4827 | { |
4828 | MAGIC* mg; | |
4829 | MAGIC** mgp; | |
91bba347 | 4830 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
4831 | return 0; |
4832 | mgp = &SvMAGIC(sv); | |
4833 | for (mg = *mgp; mg; mg = *mgp) { | |
4834 | if (mg->mg_type == type) { | |
4835 | MGVTBL* vtbl = mg->mg_virtual; | |
4836 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 4837 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 4838 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 4839 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 4840 | if (mg->mg_len > 0) |
1edc1566 | 4841 | Safefree(mg->mg_ptr); |
565764a8 | 4842 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 4843 | SvREFCNT_dec((SV*)mg->mg_ptr); |
323eb6b5 JH |
4844 | else if (mg->mg_type == PERL_MAGIC_utf8 && mg->mg_ptr) |
4845 | Safefree(mg->mg_ptr); | |
9cbac4c7 | 4846 | } |
a0d0e21e LW |
4847 | if (mg->mg_flags & MGf_REFCOUNTED) |
4848 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
4849 | Safefree(mg); |
4850 | } | |
4851 | else | |
4852 | mgp = &mg->mg_moremagic; | |
79072805 | 4853 | } |
91bba347 | 4854 | if (!SvMAGIC(sv)) { |
463ee0b2 | 4855 | SvMAGICAL_off(sv); |
06759ea0 | 4856 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
4857 | } |
4858 | ||
4859 | return 0; | |
79072805 LW |
4860 | } |
4861 | ||
c461cf8f JH |
4862 | /* |
4863 | =for apidoc sv_rvweaken | |
4864 | ||
645c22ef DM |
4865 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
4866 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
4867 | push a back-reference to this RV onto the array of backreferences | |
4868 | associated with that magic. | |
c461cf8f JH |
4869 | |
4870 | =cut | |
4871 | */ | |
4872 | ||
810b8aa5 | 4873 | SV * |
864dbfa3 | 4874 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
4875 | { |
4876 | SV *tsv; | |
4877 | if (!SvOK(sv)) /* let undefs pass */ | |
4878 | return sv; | |
4879 | if (!SvROK(sv)) | |
cea2e8a9 | 4880 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 4881 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 4882 | if (ckWARN(WARN_MISC)) |
9014280d | 4883 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
4884 | return sv; |
4885 | } | |
4886 | tsv = SvRV(sv); | |
4887 | sv_add_backref(tsv, sv); | |
4888 | SvWEAKREF_on(sv); | |
1c846c1f | 4889 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
4890 | return sv; |
4891 | } | |
4892 | ||
645c22ef DM |
4893 | /* Give tsv backref magic if it hasn't already got it, then push a |
4894 | * back-reference to sv onto the array associated with the backref magic. | |
4895 | */ | |
4896 | ||
810b8aa5 | 4897 | STATIC void |
cea2e8a9 | 4898 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
4899 | { |
4900 | AV *av; | |
4901 | MAGIC *mg; | |
14befaf4 | 4902 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
4903 | av = (AV*)mg->mg_obj; |
4904 | else { | |
4905 | av = newAV(); | |
14befaf4 | 4906 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
219ef941 JH |
4907 | /* av now has a refcnt of 2, which avoids it getting freed |
4908 | * before us during global cleanup. The extra ref is removed | |
4909 | * by magic_killbackrefs() when tsv is being freed */ | |
810b8aa5 | 4910 | } |
f8cf5370 JH |
4911 | if (AvFILLp(av) >= AvMAX(av)) { |
4912 | SV **svp = AvARRAY(av); | |
f504ecf4 NC |
4913 | I32 i = AvFILLp(av); |
4914 | while (i >= 0) { | |
4915 | if (svp[i] == &PL_sv_undef) { | |
f8cf5370 JH |
4916 | svp[i] = sv; /* reuse the slot */ |
4917 | return; | |
4918 | } | |
f504ecf4 NC |
4919 | i--; |
4920 | } | |
f8cf5370 JH |
4921 | av_extend(av, AvFILLp(av)+1); |
4922 | } | |
4923 | AvARRAY(av)[++AvFILLp(av)] = sv; /* av_push() */ | |
810b8aa5 GS |
4924 | } |
4925 | ||
645c22ef DM |
4926 | /* delete a back-reference to ourselves from the backref magic associated |
4927 | * with the SV we point to. | |
4928 | */ | |
4929 | ||
1c846c1f | 4930 | STATIC void |
cea2e8a9 | 4931 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
4932 | { |
4933 | AV *av; | |
4934 | SV **svp; | |
4935 | I32 i; | |
4936 | SV *tsv = SvRV(sv); | |
c04a4dfe | 4937 | MAGIC *mg = NULL; |
14befaf4 | 4938 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 4939 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
4940 | av = (AV *)mg->mg_obj; |
4941 | svp = AvARRAY(av); | |
f504ecf4 NC |
4942 | i = AvFILLp(av); |
4943 | while (i >= 0) { | |
4944 | if (svp[i] == sv) { | |
4945 | svp[i] = &PL_sv_undef; /* XXX */ | |
4946 | } | |
4947 | i--; | |
4948 | } | |
810b8aa5 GS |
4949 | } |
4950 | ||
954c1994 GS |
4951 | /* |
4952 | =for apidoc sv_insert | |
4953 | ||
4954 | Inserts a string at the specified offset/length within the SV. Similar to | |
4955 | the Perl substr() function. | |
4956 | ||
4957 | =cut | |
4958 | */ | |
4959 | ||
79072805 | 4960 | void |
864dbfa3 | 4961 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
4962 | { |
4963 | register char *big; | |
4964 | register char *mid; | |
4965 | register char *midend; | |
4966 | register char *bigend; | |
4967 | register I32 i; | |
6ff81951 | 4968 | STRLEN curlen; |
1c846c1f | 4969 | |
79072805 | 4970 | |
8990e307 | 4971 | if (!bigstr) |
cea2e8a9 | 4972 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 4973 | SvPV_force(bigstr, curlen); |
60fa28ff | 4974 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
4975 | if (offset + len > curlen) { |
4976 | SvGROW(bigstr, offset+len+1); | |
4977 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
4978 | SvCUR_set(bigstr, offset+len); | |
4979 | } | |
79072805 | 4980 | |
69b47968 | 4981 | SvTAINT(bigstr); |
79072805 LW |
4982 | i = littlelen - len; |
4983 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 4984 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
4985 | mid = big + offset + len; |
4986 | midend = bigend = big + SvCUR(bigstr); | |
4987 | bigend += i; | |
4988 | *bigend = '\0'; | |
4989 | while (midend > mid) /* shove everything down */ | |
4990 | *--bigend = *--midend; | |
4991 | Move(little,big+offset,littlelen,char); | |
4992 | SvCUR(bigstr) += i; | |
4993 | SvSETMAGIC(bigstr); | |
4994 | return; | |
4995 | } | |
4996 | else if (i == 0) { | |
463ee0b2 | 4997 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
4998 | SvSETMAGIC(bigstr); |
4999 | return; | |
5000 | } | |
5001 | ||
463ee0b2 | 5002 | big = SvPVX(bigstr); |
79072805 LW |
5003 | mid = big + offset; |
5004 | midend = mid + len; | |
5005 | bigend = big + SvCUR(bigstr); | |
5006 | ||
5007 | if (midend > bigend) | |
cea2e8a9 | 5008 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
5009 | |
5010 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
5011 | if (littlelen) { | |
5012 | Move(little, mid, littlelen,char); | |
5013 | mid += littlelen; | |
5014 | } | |
5015 | i = bigend - midend; | |
5016 | if (i > 0) { | |
5017 | Move(midend, mid, i,char); | |
5018 | mid += i; | |
5019 | } | |
5020 | *mid = '\0'; | |
5021 | SvCUR_set(bigstr, mid - big); | |
5022 | } | |
5023 | /*SUPPRESS 560*/ | |
155aba94 | 5024 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
5025 | midend -= littlelen; |
5026 | mid = midend; | |
5027 | sv_chop(bigstr,midend-i); | |
5028 | big += i; | |
5029 | while (i--) | |
5030 | *--midend = *--big; | |
5031 | if (littlelen) | |
5032 | Move(little, mid, littlelen,char); | |
5033 | } | |
5034 | else if (littlelen) { | |
5035 | midend -= littlelen; | |
5036 | sv_chop(bigstr,midend); | |
5037 | Move(little,midend,littlelen,char); | |
5038 | } | |
5039 | else { | |
5040 | sv_chop(bigstr,midend); | |
5041 | } | |
5042 | SvSETMAGIC(bigstr); | |
5043 | } | |
5044 | ||
c461cf8f JH |
5045 | /* |
5046 | =for apidoc sv_replace | |
5047 | ||
5048 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
5049 | The target SV physically takes over ownership of the body of the source SV |
5050 | and inherits its flags; however, the target keeps any magic it owns, | |
5051 | and any magic in the source is discarded. | |
ff276b08 | 5052 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 5053 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
5054 | |
5055 | =cut | |
5056 | */ | |
79072805 LW |
5057 | |
5058 | void | |
864dbfa3 | 5059 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
5060 | { |
5061 | U32 refcnt = SvREFCNT(sv); | |
2213622d | 5062 | SV_CHECK_THINKFIRST(sv); |
0453d815 | 5063 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 5064 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 5065 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
5066 | if (SvMAGICAL(nsv)) |
5067 | mg_free(nsv); | |
5068 | else | |
5069 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 5070 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 5071 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
5072 | SvMAGICAL_off(sv); |
5073 | SvMAGIC(sv) = 0; | |
5074 | } | |
79072805 LW |
5075 | SvREFCNT(sv) = 0; |
5076 | sv_clear(sv); | |
477f5d66 | 5077 | assert(!SvREFCNT(sv)); |
79072805 LW |
5078 | StructCopy(nsv,sv,SV); |
5079 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 5080 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
007262b0 | 5081 | SvREFCNT(nsv) = 0; |
463ee0b2 | 5082 | del_SV(nsv); |
79072805 LW |
5083 | } |
5084 | ||
c461cf8f JH |
5085 | /* |
5086 | =for apidoc sv_clear | |
5087 | ||
645c22ef DM |
5088 | Clear an SV: call any destructors, free up any memory used by the body, |
5089 | and free the body itself. The SV's head is I<not> freed, although | |
5090 | its type is set to all 1's so that it won't inadvertently be assumed | |
5091 | to be live during global destruction etc. | |
5092 | This function should only be called when REFCNT is zero. Most of the time | |
5093 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
5094 | instead. | |
c461cf8f JH |
5095 | |
5096 | =cut | |
5097 | */ | |
5098 | ||
79072805 | 5099 | void |
864dbfa3 | 5100 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 5101 | { |
ec12f114 | 5102 | HV* stash; |
79072805 LW |
5103 | assert(sv); |
5104 | assert(SvREFCNT(sv) == 0); | |
5105 | ||
ed6116ce | 5106 | if (SvOBJECT(sv)) { |
3280af22 | 5107 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 5108 | dSP; |
32251b26 | 5109 | CV* destructor; |
a0d0e21e | 5110 | |
3e5ba712 | 5111 | |
8ebc5c01 | 5112 | |
d460ef45 | 5113 | do { |
4e8e7886 | 5114 | stash = SvSTASH(sv); |
32251b26 | 5115 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 | 5116 | if (destructor) { |
3e5ba712 JH |
5117 | SV* tmpref = newRV(sv); |
5118 | SvREADONLY_on(tmpref); /* DESTROY() could be naughty */ | |
4e8e7886 | 5119 | ENTER; |
e788e7d3 | 5120 | PUSHSTACKi(PERLSI_DESTROY); |
4e8e7886 GS |
5121 | EXTEND(SP, 2); |
5122 | PUSHMARK(SP); | |
3e5ba712 | 5123 | PUSHs(tmpref); |
4e8e7886 | 5124 | PUTBACK; |
44389ee9 | 5125 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR|G_VOID); |
3e5ba712 JH |
5126 | |
5127 | ||
d3acc0f7 | 5128 | POPSTACK; |
3095d977 | 5129 | SPAGAIN; |
4e8e7886 | 5130 | LEAVE; |
3e5ba712 JH |
5131 | if(SvREFCNT(tmpref) < 2) { |
5132 | /* tmpref is not kept alive! */ | |
5133 | SvREFCNT(sv)--; | |
5134 | SvRV(tmpref) = 0; | |
5135 | SvROK_off(tmpref); | |
5136 | } | |
5137 | SvREFCNT_dec(tmpref); | |
4e8e7886 GS |
5138 | } |
5139 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 5140 | |
6f44e0a4 JP |
5141 | |
5142 | if (SvREFCNT(sv)) { | |
5143 | if (PL_in_clean_objs) | |
cea2e8a9 | 5144 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
5145 | HvNAME(stash)); |
5146 | /* DESTROY gave object new lease on life */ | |
5147 | return; | |
5148 | } | |
a0d0e21e | 5149 | } |
4e8e7886 | 5150 | |
a0d0e21e | 5151 | if (SvOBJECT(sv)) { |
4e8e7886 | 5152 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
5153 | SvOBJECT_off(sv); /* Curse the object. */ |
5154 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 5155 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 5156 | } |
463ee0b2 | 5157 | } |
524189f1 JH |
5158 | if (SvTYPE(sv) >= SVt_PVMG) { |
5159 | if (SvMAGIC(sv)) | |
5160 | mg_free(sv); | |
5161 | if (SvFLAGS(sv) & SVpad_TYPED) | |
5162 | SvREFCNT_dec(SvSTASH(sv)); | |
5163 | } | |
ec12f114 | 5164 | stash = NULL; |
79072805 | 5165 | switch (SvTYPE(sv)) { |
8990e307 | 5166 | case SVt_PVIO: |
df0bd2f4 GS |
5167 | if (IoIFP(sv) && |
5168 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5169 | IoIFP(sv) != PerlIO_stdout() && |
5170 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5171 | { |
f2b5be74 | 5172 | io_close((IO*)sv, FALSE); |
93578b34 | 5173 | } |
1d7c1841 | 5174 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5175 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5176 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5177 | Safefree(IoTOP_NAME(sv)); |
5178 | Safefree(IoFMT_NAME(sv)); | |
5179 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5180 | /* FALL THROUGH */ |
79072805 | 5181 | case SVt_PVBM: |
a0d0e21e | 5182 | goto freescalar; |
79072805 | 5183 | case SVt_PVCV: |
748a9306 | 5184 | case SVt_PVFM: |
85e6fe83 | 5185 | cv_undef((CV*)sv); |
a0d0e21e | 5186 | goto freescalar; |
79072805 | 5187 | case SVt_PVHV: |
85e6fe83 | 5188 | hv_undef((HV*)sv); |
a0d0e21e | 5189 | break; |
79072805 | 5190 | case SVt_PVAV: |
85e6fe83 | 5191 | av_undef((AV*)sv); |
a0d0e21e | 5192 | break; |
02270b4e | 5193 | case SVt_PVLV: |
73c86719 JH |
5194 | if (LvTYPE(sv) == 'T') { /* for tie: return HE to pool */ |
5195 | SvREFCNT_dec(HeKEY_sv((HE*)LvTARG(sv))); | |
5196 | HeNEXT((HE*)LvTARG(sv)) = PL_hv_fetch_ent_mh; | |
5197 | PL_hv_fetch_ent_mh = (HE*)LvTARG(sv); | |
5198 | } | |
5199 | else if (LvTYPE(sv) != 't') /* unless tie: unrefcnted fake SV** */ | |
5200 | SvREFCNT_dec(LvTARG(sv)); | |
02270b4e | 5201 | goto freescalar; |
a0d0e21e | 5202 | case SVt_PVGV: |
1edc1566 | 5203 | gp_free((GV*)sv); |
a0d0e21e | 5204 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5205 | /* cannot decrease stash refcount yet, as we might recursively delete |
5206 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5207 | of stash until current sv is completely gone. | |
5208 | -- JohnPC, 27 Mar 1998 */ | |
5209 | stash = GvSTASH(sv); | |
a0d0e21e | 5210 | /* FALL THROUGH */ |
79072805 | 5211 | case SVt_PVMG: |
79072805 LW |
5212 | case SVt_PVNV: |
5213 | case SVt_PVIV: | |
a0d0e21e LW |
5214 | freescalar: |
5215 | (void)SvOOK_off(sv); | |
79072805 LW |
5216 | /* FALL THROUGH */ |
5217 | case SVt_PV: | |
a0d0e21e | 5218 | case SVt_RV: |
810b8aa5 GS |
5219 | if (SvROK(sv)) { |
5220 | if (SvWEAKREF(sv)) | |
5221 | sv_del_backref(sv); | |
5222 | else | |
5223 | SvREFCNT_dec(SvRV(sv)); | |
5224 | } | |
1edc1566 | 5225 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 5226 | Safefree(SvPVX(sv)); |
1c846c1f | 5227 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
5228 | unsharepvn(SvPVX(sv), |
5229 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
5230 | SvUVX(sv)); | |
1c846c1f NIS |
5231 | SvFAKE_off(sv); |
5232 | } | |
79072805 | 5233 | break; |
a0d0e21e | 5234 | /* |
79072805 | 5235 | case SVt_NV: |
79072805 | 5236 | case SVt_IV: |
79072805 LW |
5237 | case SVt_NULL: |
5238 | break; | |
a0d0e21e | 5239 | */ |
79072805 LW |
5240 | } |
5241 | ||
5242 | switch (SvTYPE(sv)) { | |
5243 | case SVt_NULL: | |
5244 | break; | |
79072805 LW |
5245 | case SVt_IV: |
5246 | del_XIV(SvANY(sv)); | |
5247 | break; | |
5248 | case SVt_NV: | |
5249 | del_XNV(SvANY(sv)); | |
5250 | break; | |
ed6116ce LW |
5251 | case SVt_RV: |
5252 | del_XRV(SvANY(sv)); | |
5253 | break; | |
79072805 LW |
5254 | case SVt_PV: |
5255 | del_XPV(SvANY(sv)); | |
5256 | break; | |
5257 | case SVt_PVIV: | |
5258 | del_XPVIV(SvANY(sv)); | |
5259 | break; | |
5260 | case SVt_PVNV: | |
5261 | del_XPVNV(SvANY(sv)); | |
5262 | break; | |
5263 | case SVt_PVMG: | |
5264 | del_XPVMG(SvANY(sv)); | |
5265 | break; | |
5266 | case SVt_PVLV: | |
5267 | del_XPVLV(SvANY(sv)); | |
5268 | break; | |
5269 | case SVt_PVAV: | |
5270 | del_XPVAV(SvANY(sv)); | |
5271 | break; | |
5272 | case SVt_PVHV: | |
5273 | del_XPVHV(SvANY(sv)); | |
5274 | break; | |
5275 | case SVt_PVCV: | |
5276 | del_XPVCV(SvANY(sv)); | |
5277 | break; | |
5278 | case SVt_PVGV: | |
5279 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
5280 | /* code duplication for increased performance. */ |
5281 | SvFLAGS(sv) &= SVf_BREAK; | |
5282 | SvFLAGS(sv) |= SVTYPEMASK; | |
5283 | /* decrease refcount of the stash that owns this GV, if any */ | |
5284 | if (stash) | |
5285 | SvREFCNT_dec(stash); | |
5286 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
5287 | case SVt_PVBM: |
5288 | del_XPVBM(SvANY(sv)); | |
5289 | break; | |
5290 | case SVt_PVFM: | |
5291 | del_XPVFM(SvANY(sv)); | |
5292 | break; | |
8990e307 LW |
5293 | case SVt_PVIO: |
5294 | del_XPVIO(SvANY(sv)); | |
5295 | break; | |
79072805 | 5296 | } |
a0d0e21e | 5297 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 5298 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
5299 | } |
5300 | ||
645c22ef DM |
5301 | /* |
5302 | =for apidoc sv_newref | |
5303 | ||
5304 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5305 | instead. | |
5306 | ||
5307 | =cut | |
5308 | */ | |
5309 | ||
79072805 | 5310 | SV * |
864dbfa3 | 5311 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5312 | { |
463ee0b2 | 5313 | if (sv) |
dce16143 | 5314 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
5315 | return sv; |
5316 | } | |
5317 | ||
c461cf8f JH |
5318 | /* |
5319 | =for apidoc sv_free | |
5320 | ||
645c22ef DM |
5321 | Decrement an SV's reference count, and if it drops to zero, call |
5322 | C<sv_clear> to invoke destructors and free up any memory used by | |
5323 | the body; finally, deallocate the SV's head itself. | |
5324 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5325 | |
5326 | =cut | |
5327 | */ | |
5328 | ||
79072805 | 5329 | void |
864dbfa3 | 5330 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5331 | { |
dce16143 MB |
5332 | int refcount_is_zero; |
5333 | ||
79072805 LW |
5334 | if (!sv) |
5335 | return; | |
a0d0e21e LW |
5336 | if (SvREFCNT(sv) == 0) { |
5337 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5338 | /* this SV's refcnt has been artificially decremented to |
5339 | * trigger cleanup */ | |
a0d0e21e | 5340 | return; |
3280af22 | 5341 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5342 | return; |
d689ffdd JP |
5343 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5344 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5345 | SvREFCNT(sv) = (~(U32)0)/2; | |
5346 | return; | |
5347 | } | |
0453d815 | 5348 | if (ckWARN_d(WARN_INTERNAL)) |
14347439 | 5349 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
b035a42e NC |
5350 | "Attempt to free unreferenced scalar: SV 0x%"UVxf |
5351 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 LW |
5352 | return; |
5353 | } | |
dce16143 | 5354 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
b881518d | 5355 | if (!refcount_is_zero) |
8990e307 | 5356 | return; |
463ee0b2 LW |
5357 | #ifdef DEBUGGING |
5358 | if (SvTEMP(sv)) { | |
0453d815 | 5359 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5360 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
b035a42e NC |
5361 | "Attempt to free temp prematurely: SV 0x%"UVxf |
5362 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 | 5363 | return; |
79072805 | 5364 | } |
463ee0b2 | 5365 | #endif |
d689ffdd JP |
5366 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5367 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5368 | SvREFCNT(sv) = (~(U32)0)/2; | |
5369 | return; | |
5370 | } | |
79072805 | 5371 | sv_clear(sv); |
477f5d66 CS |
5372 | if (! SvREFCNT(sv)) |
5373 | del_SV(sv); | |
79072805 LW |
5374 | } |
5375 | ||
954c1994 GS |
5376 | /* |
5377 | =for apidoc sv_len | |
5378 | ||
645c22ef DM |
5379 | Returns the length of the string in the SV. Handles magic and type |
5380 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5381 | |
5382 | =cut | |
5383 | */ | |
5384 | ||
79072805 | 5385 | STRLEN |
864dbfa3 | 5386 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5387 | { |
463ee0b2 | 5388 | STRLEN len; |
79072805 LW |
5389 | |
5390 | if (!sv) | |
5391 | return 0; | |
5392 | ||
8990e307 | 5393 | if (SvGMAGICAL(sv)) |
565764a8 | 5394 | len = mg_length(sv); |
8990e307 | 5395 | else |
497b47a8 | 5396 | (void)SvPV(sv, len); |
463ee0b2 | 5397 | return len; |
79072805 LW |
5398 | } |
5399 | ||
c461cf8f JH |
5400 | /* |
5401 | =for apidoc sv_len_utf8 | |
5402 | ||
5403 | Returns the number of characters in the string in an SV, counting wide | |
cd458e05 | 5404 | UTF-8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5405 | |
5406 | =cut | |
5407 | */ | |
5408 | ||
323eb6b5 JH |
5409 | /* |
5410 | * The length is cached in PERL_UTF8_magic, in the mg_len field. Also the | |
5411 | * mg_ptr is used, by sv_pos_u2b(), see the comments of S_utf8_mg_pos_init(). | |
5412 | * (Note that the mg_len is not the length of the mg_ptr field.) | |
5413 | * | |
5414 | */ | |
5415 | ||
a0ed51b3 | 5416 | STRLEN |
864dbfa3 | 5417 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5418 | { |
a0ed51b3 LW |
5419 | if (!sv) |
5420 | return 0; | |
5421 | ||
a0ed51b3 | 5422 | if (SvGMAGICAL(sv)) |
b76347f2 | 5423 | return mg_length(sv); |
a0ed51b3 | 5424 | else |
b76347f2 | 5425 | { |
323eb6b5 | 5426 | STRLEN len, ulen; |
b76347f2 | 5427 | U8 *s = (U8*)SvPV(sv, len); |
323eb6b5 JH |
5428 | MAGIC *mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_utf8) : 0; |
5429 | ||
d6218095 | 5430 | if (mg && mg->mg_len != -1 && (mg->mg_len > 0 || len == 0)) { |
323eb6b5 | 5431 | ulen = mg->mg_len; |
d6218095 JH |
5432 | #ifdef PERL_UTF8_CACHE_ASSERT |
5433 | assert(ulen == Perl_utf8_length(aTHX_ s, s + len)); | |
5434 | #endif | |
5435 | } | |
323eb6b5 JH |
5436 | else { |
5437 | ulen = Perl_utf8_length(aTHX_ s, s + len); | |
5438 | if (!mg && !SvREADONLY(sv)) { | |
5439 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
5440 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5441 | assert(mg); | |
5442 | } | |
5443 | if (mg) | |
5444 | mg->mg_len = ulen; | |
5445 | } | |
5446 | return ulen; | |
5447 | } | |
5448 | } | |
5449 | ||
5450 | /* S_utf8_mg_pos_init() is used to initialize the mg_ptr field of | |
5451 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5452 | * between UTF-8 and byte offsets. There are two (substr offset and substr | |
5453 | * length, the i offset, PERL_MAGIC_UTF8_CACHESIZE) times two (UTF-8 offset | |
5454 | * and byte offset) cache positions. | |
5455 | * | |
5456 | * The mg_len field is used by sv_len_utf8(), see its comments. | |
5457 | * Note that the mg_len is not the length of the mg_ptr field. | |
5458 | * | |
5459 | */ | |
5460 | STATIC bool | |
91eb8809 | 5461 | S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, U8 *s, U8 *start) |
323eb6b5 JH |
5462 | { |
5463 | bool found = FALSE; | |
5464 | ||
5465 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
1fce4797 NC |
5466 | if (!*mgp) |
5467 | *mgp = sv_magicext(sv, 0, PERL_MAGIC_utf8, &PL_vtbl_utf8, 0, 0); | |
5468 | assert(*mgp); | |
b76347f2 | 5469 | |
323eb6b5 JH |
5470 | if ((*mgp)->mg_ptr) |
5471 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
5472 | else { | |
5473 | Newz(0, *cachep, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); | |
5474 | (*mgp)->mg_ptr = (char *) *cachep; | |
5475 | } | |
5476 | assert(*cachep); | |
5477 | ||
5478 | (*cachep)[i] = *offsetp; | |
5479 | (*cachep)[i+1] = s - start; | |
5480 | found = TRUE; | |
5481 | } | |
5482 | ||
5483 | return found; | |
5484 | } | |
5485 | ||
5486 | /* | |
5487 | * S_utf8_mg_pos() is used to query and update mg_ptr field of | |
5488 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5489 | * between UTF-8 and byte offsets. See also the comments of | |
5490 | * S_utf8_mg_pos_init(). | |
5491 | * | |
5492 | */ | |
5493 | STATIC bool | |
91eb8809 | 5494 | S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, U8 **sp, U8 *start, U8 *send) |
323eb6b5 JH |
5495 | { |
5496 | bool found = FALSE; | |
5497 | ||
5498 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
5499 | if (!*mgp) | |
5500 | *mgp = mg_find(sv, PERL_MAGIC_utf8); | |
5501 | if (*mgp && (*mgp)->mg_ptr) { | |
5502 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
d6218095 | 5503 | ASSERT_UTF8_CACHE(*cachep); |
91eb8809 | 5504 | if ((*cachep)[i] == (STRLEN)uoff) /* An exact match. */ |
323eb6b5 JH |
5505 | found = TRUE; |
5506 | else { /* We will skip to the right spot. */ | |
5507 | STRLEN forw = 0; | |
5508 | STRLEN backw = 0; | |
5509 | U8* p = NULL; | |
5510 | ||
5511 | /* The assumption is that going backward is half | |
5512 | * the speed of going forward (that's where the | |
5513 | * 2 * backw in the below comes from). (The real | |
5514 | * figure of course depends on the UTF-8 data.) */ | |
5515 | ||
91eb8809 | 5516 | if ((*cachep)[i] > (STRLEN)uoff) { |
323eb6b5 | 5517 | forw = uoff; |
91eb8809 | 5518 | backw = (*cachep)[i] - (STRLEN)uoff; |
323eb6b5 JH |
5519 | |
5520 | if (forw < 2 * backw) | |
5521 | p = start; | |
5522 | else | |
5523 | p = start + (*cachep)[i+1]; | |
5524 | } | |
5525 | /* Try this only for the substr offset (i == 0), | |
5526 | * not for the substr length (i == 2). */ | |
5527 | else if (i == 0) { /* (*cachep)[i] < uoff */ | |
5528 | STRLEN ulen = sv_len_utf8(sv); | |
5529 | ||
91eb8809 JH |
5530 | if ((STRLEN)uoff < ulen) { |
5531 | forw = (STRLEN)uoff - (*cachep)[i]; | |
5532 | backw = ulen - (STRLEN)uoff; | |
323eb6b5 JH |
5533 | |
5534 | if (forw < 2 * backw) | |
5535 | p = start + (*cachep)[i+1]; | |
5536 | else | |
5537 | p = send; | |
5538 | } | |
5539 | ||
5540 | /* If the string is not long enough for uoff, | |
5541 | * we could extend it, but not at this low a level. */ | |
5542 | } | |
5543 | ||
5544 | if (p) { | |
5545 | if (forw < 2 * backw) { | |
5546 | while (forw--) | |
5547 | p += UTF8SKIP(p); | |
5548 | } | |
5549 | else { | |
5550 | while (backw--) { | |
5551 | p--; | |
5552 | while (UTF8_IS_CONTINUATION(*p)) | |
5553 | p--; | |
5554 | } | |
5555 | } | |
5556 | ||
5557 | /* Update the cache. */ | |
91eb8809 | 5558 | (*cachep)[i] = (STRLEN)uoff; |
323eb6b5 JH |
5559 | (*cachep)[i+1] = p - start; |
5560 | ||
1fce4797 NC |
5561 | /* Drop the stale "length" cache */ |
5562 | if (i == 0) { | |
5563 | (*cachep)[2] = 0; | |
5564 | (*cachep)[3] = 0; | |
5565 | } | |
5566 | ||
323eb6b5 JH |
5567 | found = TRUE; |
5568 | } | |
5569 | } | |
5570 | if (found) { /* Setup the return values. */ | |
5571 | *offsetp = (*cachep)[i+1]; | |
5572 | *sp = start + *offsetp; | |
5573 | if (*sp >= send) { | |
5574 | *sp = send; | |
5575 | *offsetp = send - start; | |
5576 | } | |
5577 | else if (*sp < start) { | |
5578 | *sp = start; | |
5579 | *offsetp = 0; | |
5580 | } | |
5581 | } | |
d6218095 JH |
5582 | } |
5583 | #ifdef PERL_UTF8_CACHE_ASSERT | |
5584 | if (found) { | |
5585 | U8 *s = start; | |
5586 | I32 n = uoff; | |
5587 | ||
5588 | while (n-- && s < send) | |
5589 | s += UTF8SKIP(s); | |
5590 | ||
5591 | if (i == 0) { | |
5592 | assert(*offsetp == s - start); | |
5593 | assert((*cachep)[0] == (STRLEN)uoff); | |
5594 | assert((*cachep)[1] == *offsetp); | |
5595 | } | |
5596 | ASSERT_UTF8_CACHE(*cachep); | |
5597 | } | |
5598 | #endif | |
a0ed51b3 | 5599 | } |
323eb6b5 JH |
5600 | |
5601 | return found; | |
a0ed51b3 LW |
5602 | } |
5603 | ||
645c22ef DM |
5604 | /* |
5605 | =for apidoc sv_pos_u2b | |
5606 | ||
cd458e05 | 5607 | Converts the value pointed to by offsetp from a count of UTF-8 chars from |
645c22ef DM |
5608 | the start of the string, to a count of the equivalent number of bytes; if |
5609 | lenp is non-zero, it does the same to lenp, but this time starting from | |
5610 | the offset, rather than from the start of the string. Handles magic and | |
5611 | type coercion. | |
5612 | ||
5613 | =cut | |
5614 | */ | |
5615 | ||
323eb6b5 JH |
5616 | /* |
5617 | * sv_pos_u2b() uses, like sv_pos_b2u(), the mg_ptr of the potential | |
5618 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
5619 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
5620 | * | |
5621 | */ | |
5622 | ||
a0ed51b3 | 5623 | void |
864dbfa3 | 5624 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 5625 | { |
dfe13c55 GS |
5626 | U8 *start; |
5627 | U8 *s; | |
a0ed51b3 | 5628 | STRLEN len; |
323eb6b5 JH |
5629 | STRLEN *cache = 0; |
5630 | STRLEN boffset = 0; | |
a0ed51b3 LW |
5631 | |
5632 | if (!sv) | |
5633 | return; | |
5634 | ||
dfe13c55 | 5635 | start = s = (U8*)SvPV(sv, len); |
323eb6b5 JH |
5636 | if (len) { |
5637 | I32 uoffset = *offsetp; | |
5638 | U8 *send = s + len; | |
5639 | MAGIC *mg = 0; | |
5640 | bool found = FALSE; | |
5641 | ||
5eed253f | 5642 | if (utf8_mg_pos(sv, &mg, &cache, 0, offsetp, *offsetp, &s, start, send)) |
323eb6b5 JH |
5643 | found = TRUE; |
5644 | if (!found && uoffset > 0) { | |
5645 | while (s < send && uoffset--) | |
5646 | s += UTF8SKIP(s); | |
5647 | if (s >= send) | |
5648 | s = send; | |
5eed253f | 5649 | if (utf8_mg_pos_init(sv, &mg, &cache, 0, offsetp, s, start)) |
323eb6b5 JH |
5650 | boffset = cache[1]; |
5651 | *offsetp = s - start; | |
5652 | } | |
5653 | if (lenp) { | |
5654 | found = FALSE; | |
5655 | start = s; | |
5eed253f | 5656 | if (utf8_mg_pos(sv, &mg, &cache, 2, lenp, *lenp + *offsetp, &s, start, send)) { |
323eb6b5 JH |
5657 | *lenp -= boffset; |
5658 | found = TRUE; | |
5659 | } | |
5660 | if (!found && *lenp > 0) { | |
5661 | I32 ulen = *lenp; | |
5662 | if (ulen > 0) | |
5663 | while (s < send && ulen--) | |
5664 | s += UTF8SKIP(s); | |
5665 | if (s >= send) | |
5666 | s = send; | |
b035a42e | 5667 | utf8_mg_pos_init(sv, &mg, &cache, 2, lenp, s, start); |
323eb6b5 JH |
5668 | } |
5669 | *lenp = s - start; | |
5670 | } | |
d6218095 | 5671 | ASSERT_UTF8_CACHE(cache); |
323eb6b5 JH |
5672 | } |
5673 | else { | |
5674 | *offsetp = 0; | |
5675 | if (lenp) | |
5676 | *lenp = 0; | |
a0ed51b3 | 5677 | } |
d6218095 | 5678 | |
a0ed51b3 LW |
5679 | return; |
5680 | } | |
5681 | ||
645c22ef DM |
5682 | /* |
5683 | =for apidoc sv_pos_b2u | |
5684 | ||
5685 | Converts the value pointed to by offsetp from a count of bytes from the | |
cd458e05 | 5686 | start of the string, to a count of the equivalent number of UTF-8 chars. |
645c22ef DM |
5687 | Handles magic and type coercion. |
5688 | ||
5689 | =cut | |
5690 | */ | |
5691 | ||
323eb6b5 JH |
5692 | /* |
5693 | * sv_pos_b2u() uses, like sv_pos_u2b(), the mg_ptr of the potential | |
5694 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
5695 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
5696 | * | |
5697 | */ | |
5698 | ||
a0ed51b3 | 5699 | void |
323eb6b5 | 5700 | Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) |
a0ed51b3 | 5701 | { |
323eb6b5 | 5702 | U8* s; |
a0ed51b3 LW |
5703 | STRLEN len; |
5704 | ||
5705 | if (!sv) | |
5706 | return; | |
5707 | ||
dfe13c55 | 5708 | s = (U8*)SvPV(sv, len); |
eb160463 | 5709 | if ((I32)len < *offsetp) |
a0dbb045 | 5710 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
323eb6b5 | 5711 | else { |
4a9f3d2e NC |
5712 | U8* send = s + *offsetp; |
5713 | MAGIC* mg = NULL; | |
5714 | STRLEN *cache = NULL; | |
323eb6b5 | 5715 | |
4a9f3d2e | 5716 | len = 0; |
323eb6b5 | 5717 | |
4a9f3d2e NC |
5718 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { |
5719 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5720 | if (mg && mg->mg_ptr) { | |
5721 | cache = (STRLEN *) mg->mg_ptr; | |
5722 | if (cache[1] == (STRLEN)*offsetp) { | |
5723 | /* An exact match. */ | |
5724 | *offsetp = cache[0]; | |
323eb6b5 | 5725 | |
4a9f3d2e NC |
5726 | return; |
5727 | } | |
5728 | else if (cache[1] < (STRLEN)*offsetp) { | |
5729 | /* We already know part of the way. */ | |
5730 | len = cache[0]; | |
5731 | s += cache[1]; | |
5732 | /* Let the below loop do the rest. */ | |
5733 | } | |
5734 | else { /* cache[1] > *offsetp */ | |
5735 | /* We already know all of the way, now we may | |
5736 | * be able to walk back. The same assumption | |
5737 | * is made as in S_utf8_mg_pos(), namely that | |
5738 | * walking backward is twice slower than | |
5739 | * walking forward. */ | |
5740 | STRLEN forw = *offsetp; | |
5741 | STRLEN backw = cache[1] - *offsetp; | |
5742 | ||
5743 | if (!(forw < 2 * backw)) { | |
5744 | U8 *p = s + cache[1]; | |
5745 | STRLEN ubackw = 0; | |
323eb6b5 | 5746 | |
4a9f3d2e | 5747 | cache[1] -= backw; |
338501c1 | 5748 | |
4a9f3d2e | 5749 | while (backw--) { |
b9219079 JH |
5750 | p--; |
5751 | while (UTF8_IS_CONTINUATION(*p)) { | |
5752 | p--; | |
5753 | backw--; | |
5754 | } | |
5755 | ubackw++; | |
323eb6b5 | 5756 | } |
b9219079 JH |
5757 | |
5758 | cache[0] -= ubackw; | |
5759 | *offsetp = cache[0]; | |
b035a42e NC |
5760 | |
5761 | /* Drop the stale "length" cache */ | |
5762 | cache[2] = 0; | |
5763 | cache[3] = 0; | |
5764 | ||
b9219079 JH |
5765 | return; |
5766 | } | |
5767 | } | |
5768 | } | |
d6218095 | 5769 | ASSERT_UTF8_CACHE(cache); |
323eb6b5 JH |
5770 | } |
5771 | ||
4a9f3d2e NC |
5772 | while (s < send) { |
5773 | STRLEN n = 1; | |
323eb6b5 | 5774 | |
4a9f3d2e NC |
5775 | /* Call utf8n_to_uvchr() to validate the sequence |
5776 | * (unless a simple non-UTF character) */ | |
5777 | if (!UTF8_IS_INVARIANT(*s)) | |
5778 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
5779 | if (n > 0) { | |
5780 | s += n; | |
5781 | len++; | |
5782 | } | |
5783 | else | |
5784 | break; | |
5785 | } | |
323eb6b5 | 5786 | |
4a9f3d2e NC |
5787 | if (!SvREADONLY(sv)) { |
5788 | if (!mg) { | |
5789 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
5790 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5791 | } | |
5792 | assert(mg); | |
323eb6b5 | 5793 | |
4a9f3d2e NC |
5794 | if (!mg->mg_ptr) { |
5795 | Newz(0, cache, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); | |
5796 | mg->mg_ptr = (char *) cache; | |
5797 | } | |
5798 | assert(cache); | |
323eb6b5 | 5799 | |
4a9f3d2e NC |
5800 | cache[0] = len; |
5801 | cache[1] = *offsetp; | |
b035a42e NC |
5802 | /* Drop the stale "length" cache */ |
5803 | cache[2] = 0; | |
5804 | cache[3] = 0; | |
4a9f3d2e | 5805 | } |
323eb6b5 | 5806 | |
4a9f3d2e | 5807 | *offsetp = len; |
a0ed51b3 | 5808 | } |
323eb6b5 | 5809 | |
a0ed51b3 LW |
5810 | return; |
5811 | } | |
5812 | ||
954c1994 GS |
5813 | /* |
5814 | =for apidoc sv_eq | |
5815 | ||
5816 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
5817 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5818 | coerce its args to strings if necessary. | |
954c1994 GS |
5819 | |
5820 | =cut | |
5821 | */ | |
5822 | ||
79072805 | 5823 | I32 |
e01b9e88 | 5824 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 LW |
5825 | { |
5826 | char *pv1; | |
463ee0b2 | 5827 | STRLEN cur1; |
79072805 | 5828 | char *pv2; |
463ee0b2 | 5829 | STRLEN cur2; |
e01b9e88 | 5830 | I32 eq = 0; |
553e1bcc AT |
5831 | char *tpv = Nullch; |
5832 | SV* svrecode = Nullsv; | |
79072805 | 5833 | |
e01b9e88 | 5834 | if (!sv1) { |
79072805 LW |
5835 | pv1 = ""; |
5836 | cur1 = 0; | |
5837 | } | |
463ee0b2 | 5838 | else |
e01b9e88 | 5839 | pv1 = SvPV(sv1, cur1); |
79072805 | 5840 | |
e01b9e88 SC |
5841 | if (!sv2){ |
5842 | pv2 = ""; | |
5843 | cur2 = 0; | |
92d29cee | 5844 | } |
e01b9e88 SC |
5845 | else |
5846 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5847 | |
cf48d248 | 5848 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5849 | /* Differing utf8ness. |
5850 | * Do not UTF8size the comparands as a side-effect. */ | |
5851 | if (PL_encoding) { | |
5852 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
5853 | svrecode = newSVpvn(pv2, cur2); |
5854 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5855 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5856 | } |
5857 | else { | |
553e1bcc AT |
5858 | svrecode = newSVpvn(pv1, cur1); |
5859 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5860 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5861 | } |
5862 | /* Now both are in UTF-8. */ | |
5863 | if (cur1 != cur2) | |
5864 | return FALSE; | |
5865 | } | |
5866 | else { | |
5867 | bool is_utf8 = TRUE; | |
5868 | ||
5869 | if (SvUTF8(sv1)) { | |
5870 | /* sv1 is the UTF-8 one, | |
5871 | * if is equal it must be downgrade-able */ | |
5872 | char *pv = (char*)bytes_from_utf8((U8*)pv1, | |
5873 | &cur1, &is_utf8); | |
5874 | if (pv != pv1) | |
553e1bcc | 5875 | pv1 = tpv = pv; |
799ef3cb JH |
5876 | } |
5877 | else { | |
5878 | /* sv2 is the UTF-8 one, | |
5879 | * if is equal it must be downgrade-able */ | |
5880 | char *pv = (char *)bytes_from_utf8((U8*)pv2, | |
5881 | &cur2, &is_utf8); | |
5882 | if (pv != pv2) | |
553e1bcc | 5883 | pv2 = tpv = pv; |
799ef3cb JH |
5884 | } |
5885 | if (is_utf8) { | |
5886 | /* Downgrade not possible - cannot be eq */ | |
5887 | return FALSE; | |
5888 | } | |
5889 | } | |
cf48d248 JH |
5890 | } |
5891 | ||
5892 | if (cur1 == cur2) | |
5893 | eq = memEQ(pv1, pv2, cur1); | |
e01b9e88 | 5894 | |
553e1bcc AT |
5895 | if (svrecode) |
5896 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5897 | |
553e1bcc AT |
5898 | if (tpv) |
5899 | Safefree(tpv); | |
cf48d248 | 5900 | |
e01b9e88 | 5901 | return eq; |
79072805 LW |
5902 | } |
5903 | ||
954c1994 GS |
5904 | /* |
5905 | =for apidoc sv_cmp | |
5906 | ||
5907 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
5908 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
5909 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
5910 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
5911 | |
5912 | =cut | |
5913 | */ | |
5914 | ||
79072805 | 5915 | I32 |
e01b9e88 | 5916 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 5917 | { |
560a288e | 5918 | STRLEN cur1, cur2; |
553e1bcc | 5919 | char *pv1, *pv2, *tpv = Nullch; |
cf48d248 | 5920 | I32 cmp; |
553e1bcc | 5921 | SV *svrecode = Nullsv; |
560a288e | 5922 | |
e01b9e88 SC |
5923 | if (!sv1) { |
5924 | pv1 = ""; | |
560a288e GS |
5925 | cur1 = 0; |
5926 | } | |
e01b9e88 SC |
5927 | else |
5928 | pv1 = SvPV(sv1, cur1); | |
560a288e | 5929 | |
553e1bcc | 5930 | if (!sv2) { |
e01b9e88 | 5931 | pv2 = ""; |
560a288e GS |
5932 | cur2 = 0; |
5933 | } | |
e01b9e88 SC |
5934 | else |
5935 | pv2 = SvPV(sv2, cur2); | |
79072805 | 5936 | |
cf48d248 | 5937 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
5938 | /* Differing utf8ness. |
5939 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 5940 | if (SvUTF8(sv1)) { |
799ef3cb | 5941 | if (PL_encoding) { |
553e1bcc AT |
5942 | svrecode = newSVpvn(pv2, cur2); |
5943 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5944 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
5945 | } |
5946 | else { | |
553e1bcc | 5947 | pv2 = tpv = (char*)bytes_to_utf8((U8*)pv2, &cur2); |
799ef3cb | 5948 | } |
cf48d248 JH |
5949 | } |
5950 | else { | |
799ef3cb | 5951 | if (PL_encoding) { |
553e1bcc AT |
5952 | svrecode = newSVpvn(pv1, cur1); |
5953 | sv_recode_to_utf8(svrecode, PL_encoding); | |
5954 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
5955 | } |
5956 | else { | |
553e1bcc | 5957 | pv1 = tpv = (char*)bytes_to_utf8((U8*)pv1, &cur1); |
799ef3cb | 5958 | } |
cf48d248 JH |
5959 | } |
5960 | } | |
5961 | ||
e01b9e88 | 5962 | if (!cur1) { |
cf48d248 | 5963 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 5964 | } else if (!cur2) { |
cf48d248 JH |
5965 | cmp = 1; |
5966 | } else { | |
5967 | I32 retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); | |
e01b9e88 SC |
5968 | |
5969 | if (retval) { | |
cf48d248 | 5970 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 5971 | } else if (cur1 == cur2) { |
cf48d248 JH |
5972 | cmp = 0; |
5973 | } else { | |
5974 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 5975 | } |
cf48d248 | 5976 | } |
16660edb | 5977 | |
553e1bcc AT |
5978 | if (svrecode) |
5979 | SvREFCNT_dec(svrecode); | |
799ef3cb | 5980 | |
553e1bcc AT |
5981 | if (tpv) |
5982 | Safefree(tpv); | |
cf48d248 JH |
5983 | |
5984 | return cmp; | |
bbce6d69 | 5985 | } |
16660edb | 5986 | |
c461cf8f JH |
5987 | /* |
5988 | =for apidoc sv_cmp_locale | |
5989 | ||
645c22ef DM |
5990 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
5991 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
5992 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
5993 | |
5994 | =cut | |
5995 | */ | |
5996 | ||
bbce6d69 | 5997 | I32 |
864dbfa3 | 5998 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 5999 | { |
36477c24 | 6000 | #ifdef USE_LOCALE_COLLATE |
16660edb | 6001 | |
bbce6d69 | 6002 | char *pv1, *pv2; |
6003 | STRLEN len1, len2; | |
6004 | I32 retval; | |
16660edb | 6005 | |
3280af22 | 6006 | if (PL_collation_standard) |
bbce6d69 | 6007 | goto raw_compare; |
16660edb | 6008 | |
bbce6d69 | 6009 | len1 = 0; |
8ac85365 | 6010 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 6011 | len2 = 0; |
8ac85365 | 6012 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 6013 | |
bbce6d69 | 6014 | if (!pv1 || !len1) { |
6015 | if (pv2 && len2) | |
6016 | return -1; | |
6017 | else | |
6018 | goto raw_compare; | |
6019 | } | |
6020 | else { | |
6021 | if (!pv2 || !len2) | |
6022 | return 1; | |
6023 | } | |
16660edb | 6024 | |
bbce6d69 | 6025 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 6026 | |
bbce6d69 | 6027 | if (retval) |
16660edb | 6028 | return retval < 0 ? -1 : 1; |
6029 | ||
bbce6d69 | 6030 | /* |
6031 | * When the result of collation is equality, that doesn't mean | |
6032 | * that there are no differences -- some locales exclude some | |
6033 | * characters from consideration. So to avoid false equalities, | |
6034 | * we use the raw string as a tiebreaker. | |
6035 | */ | |
16660edb | 6036 | |
bbce6d69 | 6037 | raw_compare: |
6038 | /* FALL THROUGH */ | |
16660edb | 6039 | |
36477c24 | 6040 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 6041 | |
bbce6d69 | 6042 | return sv_cmp(sv1, sv2); |
6043 | } | |
79072805 | 6044 | |
645c22ef | 6045 | |
36477c24 | 6046 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 6047 | |
7a4c00b4 | 6048 | /* |
645c22ef DM |
6049 | =for apidoc sv_collxfrm |
6050 | ||
6051 | Add Collate Transform magic to an SV if it doesn't already have it. | |
6052 | ||
6053 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
6054 | scalar data of the variable, but transformed to such a format that a normal | |
6055 | memory comparison can be used to compare the data according to the locale | |
6056 | settings. | |
6057 | ||
6058 | =cut | |
6059 | */ | |
6060 | ||
bbce6d69 | 6061 | char * |
864dbfa3 | 6062 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 6063 | { |
7a4c00b4 | 6064 | MAGIC *mg; |
16660edb | 6065 | |
14befaf4 | 6066 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 6067 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 6068 | char *s, *xf; |
6069 | STRLEN len, xlen; | |
6070 | ||
7a4c00b4 | 6071 | if (mg) |
6072 | Safefree(mg->mg_ptr); | |
bbce6d69 | 6073 | s = SvPV(sv, len); |
6074 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 6075 | if (SvREADONLY(sv)) { |
6076 | SAVEFREEPV(xf); | |
6077 | *nxp = xlen; | |
3280af22 | 6078 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 6079 | } |
7a4c00b4 | 6080 | if (! mg) { |
14befaf4 DM |
6081 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
6082 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 6083 | assert(mg); |
bbce6d69 | 6084 | } |
7a4c00b4 | 6085 | mg->mg_ptr = xf; |
565764a8 | 6086 | mg->mg_len = xlen; |
7a4c00b4 | 6087 | } |
6088 | else { | |
ff0cee69 | 6089 | if (mg) { |
6090 | mg->mg_ptr = NULL; | |
565764a8 | 6091 | mg->mg_len = -1; |
ff0cee69 | 6092 | } |
bbce6d69 | 6093 | } |
6094 | } | |
7a4c00b4 | 6095 | if (mg && mg->mg_ptr) { |
565764a8 | 6096 | *nxp = mg->mg_len; |
3280af22 | 6097 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 6098 | } |
6099 | else { | |
6100 | *nxp = 0; | |
6101 | return NULL; | |
16660edb | 6102 | } |
79072805 LW |
6103 | } |
6104 | ||
36477c24 | 6105 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 6106 | |
c461cf8f JH |
6107 | /* |
6108 | =for apidoc sv_gets | |
6109 | ||
6110 | Get a line from the filehandle and store it into the SV, optionally | |
6111 | appending to the currently-stored string. | |
6112 | ||
6113 | =cut | |
6114 | */ | |
6115 | ||
79072805 | 6116 | char * |
864dbfa3 | 6117 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 6118 | { |
c07a80fd | 6119 | char *rsptr; |
6120 | STRLEN rslen; | |
6121 | register STDCHAR rslast; | |
6122 | register STDCHAR *bp; | |
6123 | register I32 cnt; | |
9c5ffd7c | 6124 | I32 i = 0; |
8bfdd7d9 | 6125 | I32 rspara = 0; |
fe1d0b35 | 6126 | I32 recsize; |
c07a80fd | 6127 | |
1624793d NC |
6128 | if (SvTHINKFIRST(sv)) |
6129 | sv_force_normal_flags(sv, append ? 0 : SV_COW_DROP_PV); | |
6130 | /* XXX. If you make this PVIV, then copy on write can copy scalars read | |
6131 | from <>. | |
6132 | However, perlbench says it's slower, because the existing swipe code | |
6133 | is faster than copy on write. | |
6134 | Swings and roundabouts. */ | |
6fc92669 | 6135 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 6136 | |
ff68c719 | 6137 | SvSCREAM_off(sv); |
251c53ad AE |
6138 | |
6139 | if (append) { | |
6140 | if (PerlIO_isutf8(fp)) { | |
6141 | if (!SvUTF8(sv)) { | |
6142 | sv_utf8_upgrade_nomg(sv); | |
6143 | sv_pos_u2b(sv,&append,0); | |
6144 | } | |
6145 | } else if (SvUTF8(sv)) { | |
6146 | SV *tsv = NEWSV(0,0); | |
6147 | sv_gets(tsv, fp, 0); | |
6148 | sv_utf8_upgrade_nomg(tsv); | |
6149 | SvCUR_set(sv,append); | |
6150 | sv_catsv(sv,tsv); | |
6151 | sv_free(tsv); | |
6152 | goto return_string_or_null; | |
6153 | } | |
6154 | } | |
6155 | ||
6156 | SvPOK_only(sv); | |
6157 | if (PerlIO_isutf8(fp)) | |
6158 | SvUTF8_on(sv); | |
c07a80fd | 6159 | |
ef7b71f0 | 6160 | if (IN_PERL_COMPILETIME) { |
8bfdd7d9 HS |
6161 | /* we always read code in line mode */ |
6162 | rsptr = "\n"; | |
6163 | rslen = 1; | |
6164 | } | |
6165 | else if (RsSNARF(PL_rs)) { | |
338501c1 JH |
6166 | /* If it is a regular disk file use size from stat() as estimate |
6167 | of amount we are going to read - may result in malloc-ing | |
6168 | more memory than we realy need if layers bellow reduce | |
6169 | size we read (e.g. CRLF or a gzip layer) | |
6170 | */ | |
fe1d0b35 | 6171 | Stat_t st; |
338501c1 JH |
6172 | if (!PerlLIO_fstat(PerlIO_fileno(fp), &st) && S_ISREG(st.st_mode)) { |
6173 | Off_t offset = PerlIO_tell(fp); | |
bfd7eeef | 6174 | if (offset != (Off_t) -1 && st.st_size + append > offset) { |
338501c1 JH |
6175 | (void) SvGROW(sv, (STRLEN)((st.st_size - offset) + append + 1)); |
6176 | } | |
6177 | } | |
c07a80fd | 6178 | rsptr = NULL; |
6179 | rslen = 0; | |
6180 | } | |
3280af22 | 6181 | else if (RsRECORD(PL_rs)) { |
fe1d0b35 | 6182 | I32 bytesread; |
5b2b9c68 HM |
6183 | char *buffer; |
6184 | ||
6185 | /* Grab the size of the record we're getting */ | |
3280af22 | 6186 | recsize = SvIV(SvRV(PL_rs)); |
fe1d0b35 | 6187 | buffer = SvGROW(sv, (STRLEN)(recsize + append + 1)) + append; |
5b2b9c68 HM |
6188 | /* Go yank in */ |
6189 | #ifdef VMS | |
6190 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
6191 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
338501c1 JH |
6192 | /* doing, but we've got no other real choice - except avoid stdio |
6193 | as implementation - perhaps write a :vms layer ? | |
6194 | */ | |
5b2b9c68 HM |
6195 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); |
6196 | #else | |
6197 | bytesread = PerlIO_read(fp, buffer, recsize); | |
6198 | #endif | |
e3b9cd39 JH |
6199 | if (bytesread < 0) |
6200 | bytesread = 0; | |
fe1d0b35 | 6201 | SvCUR_set(sv, bytesread += append); |
e670df4e | 6202 | buffer[bytesread] = '\0'; |
251c53ad | 6203 | goto return_string_or_null; |
5b2b9c68 | 6204 | } |
3280af22 | 6205 | else if (RsPARA(PL_rs)) { |
c07a80fd | 6206 | rsptr = "\n\n"; |
6207 | rslen = 2; | |
8bfdd7d9 | 6208 | rspara = 1; |
c07a80fd | 6209 | } |
7d59b7e4 NIS |
6210 | else { |
6211 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
6212 | if (PerlIO_isutf8(fp)) { | |
6213 | rsptr = SvPVutf8(PL_rs, rslen); | |
6214 | } | |
6215 | else { | |
6216 | if (SvUTF8(PL_rs)) { | |
6217 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
6218 | Perl_croak(aTHX_ "Wide character in $/"); | |
6219 | } | |
6220 | } | |
6221 | rsptr = SvPV(PL_rs, rslen); | |
6222 | } | |
6223 | } | |
6224 | ||
c07a80fd | 6225 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
6226 | ||
8bfdd7d9 | 6227 | if (rspara) { /* have to do this both before and after */ |
79072805 | 6228 | do { /* to make sure file boundaries work right */ |
760ac839 | 6229 | if (PerlIO_eof(fp)) |
a0d0e21e | 6230 | return 0; |
760ac839 | 6231 | i = PerlIO_getc(fp); |
79072805 | 6232 | if (i != '\n') { |
a0d0e21e LW |
6233 | if (i == -1) |
6234 | return 0; | |
760ac839 | 6235 | PerlIO_ungetc(fp,i); |
79072805 LW |
6236 | break; |
6237 | } | |
6238 | } while (i != EOF); | |
6239 | } | |
c07a80fd | 6240 | |
760ac839 LW |
6241 | /* See if we know enough about I/O mechanism to cheat it ! */ |
6242 | ||
6243 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 6244 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
6245 | enough here - and may even be a macro allowing compile |
6246 | time optimization. | |
6247 | */ | |
6248 | ||
6249 | if (PerlIO_fast_gets(fp)) { | |
6250 | ||
6251 | /* | |
6252 | * We're going to steal some values from the stdio struct | |
6253 | * and put EVERYTHING in the innermost loop into registers. | |
6254 | */ | |
6255 | register STDCHAR *ptr; | |
6256 | STRLEN bpx; | |
6257 | I32 shortbuffered; | |
6258 | ||
16660edb | 6259 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
6260 | /* An ungetc()d char is handled separately from the regular | |
6261 | * buffer, so we getc() it back out and stuff it in the buffer. | |
6262 | */ | |
6263 | i = PerlIO_getc(fp); | |
6264 | if (i == EOF) return 0; | |
6265 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
6266 | (*fp)->_cnt++; | |
6267 | #endif | |
c07a80fd | 6268 | |
c2960299 | 6269 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 6270 | |
a20bf0c3 | 6271 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
338501c1 JH |
6272 | /* make sure we have the room */ |
6273 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { | |
6274 | /* Not room for all of it | |
6275 | if we are looking for a separator and room for some | |
6276 | */ | |
6277 | if (rslen && cnt > 80 && (I32)SvLEN(sv) > append) { | |
6278 | /* just process what we have room for */ | |
79072805 LW |
6279 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
6280 | cnt -= shortbuffered; | |
6281 | } | |
6282 | else { | |
6283 | shortbuffered = 0; | |
bbce6d69 | 6284 | /* remember that cnt can be negative */ |
eb160463 | 6285 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
6286 | } |
6287 | } | |
338501c1 | 6288 | else |
79072805 | 6289 | shortbuffered = 0; |
c07a80fd | 6290 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 6291 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 6292 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6293 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 6294 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 6295 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6296 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6297 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
6298 | for (;;) { |
6299 | screamer: | |
93a17b20 | 6300 | if (cnt > 0) { |
c07a80fd | 6301 | if (rslen) { |
760ac839 LW |
6302 | while (cnt > 0) { /* this | eat */ |
6303 | cnt--; | |
c07a80fd | 6304 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
6305 | goto thats_all_folks; /* screams | sed :-) */ | |
6306 | } | |
6307 | } | |
6308 | else { | |
1c846c1f NIS |
6309 | Copy(ptr, bp, cnt, char); /* this | eat */ |
6310 | bp += cnt; /* screams | dust */ | |
c07a80fd | 6311 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 6312 | cnt = 0; |
93a17b20 | 6313 | } |
79072805 LW |
6314 | } |
6315 | ||
748a9306 | 6316 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
6317 | cnt = shortbuffered; |
6318 | shortbuffered = 0; | |
c07a80fd | 6319 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
6320 | SvCUR_set(sv, bpx); |
6321 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 6322 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
6323 | continue; |
6324 | } | |
6325 | ||
16660edb | 6326 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
6327 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
6328 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 6329 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 6330 | #if 0 |
16660edb | 6331 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6332 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6333 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6334 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6335 | #endif |
1c846c1f | 6336 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 6337 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
6338 | another abstraction. */ | |
760ac839 | 6339 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 6340 | #if 0 |
16660edb | 6341 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6342 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6343 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6344 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6345 | #endif |
a20bf0c3 JH |
6346 | cnt = PerlIO_get_cnt(fp); |
6347 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 6348 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6349 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 6350 | |
748a9306 LW |
6351 | if (i == EOF) /* all done for ever? */ |
6352 | goto thats_really_all_folks; | |
6353 | ||
c07a80fd | 6354 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
6355 | SvCUR_set(sv, bpx); |
6356 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 6357 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
6358 | ||
eb160463 | 6359 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 6360 | |
c07a80fd | 6361 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 6362 | goto thats_all_folks; |
79072805 LW |
6363 | } |
6364 | ||
6365 | thats_all_folks: | |
eb160463 | 6366 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX(sv)) < rslen) || |
36477c24 | 6367 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 6368 | goto screamer; /* go back to the fray */ |
79072805 LW |
6369 | thats_really_all_folks: |
6370 | if (shortbuffered) | |
6371 | cnt += shortbuffered; | |
16660edb | 6372 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6373 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 6374 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 6375 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6376 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6377 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6378 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 6379 | *bp = '\0'; |
760ac839 | 6380 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 6381 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 6382 | "Screamer: done, len=%ld, string=|%.*s|\n", |
6383 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
6384 | } |
6385 | else | |
79072805 | 6386 | { |
2ee2a917 JH |
6387 | /*The big, slow, and stupid way. */ |
6388 | ||
6389 | /* Any stack-challenged places. */ | |
f73bace3 | 6390 | #if defined(EPOC) |
2ee2a917 JH |
6391 | /* EPOC: need to work around SDK features. * |
6392 | * On WINS: MS VC5 generates calls to _chkstk, * | |
6393 | * if a "large" stack frame is allocated. * | |
6394 | * gcc on MARM does not generate calls like these. */ | |
6395 | # define USEHEAPINSTEADOFSTACK | |
6396 | #endif | |
6397 | ||
6398 | #ifdef USEHEAPINSTEADOFSTACK | |
6399 | STDCHAR *buf = 0; | |
6400 | New(0, buf, 8192, STDCHAR); | |
6401 | assert(buf); | |
4d2c4e07 | 6402 | #else |
2ee2a917 | 6403 | STDCHAR buf[8192]; |
4d2c4e07 | 6404 | #endif |
79072805 | 6405 | |
760ac839 | 6406 | screamer2: |
c07a80fd | 6407 | if (rslen) { |
760ac839 LW |
6408 | register STDCHAR *bpe = buf + sizeof(buf); |
6409 | bp = buf; | |
eb160463 | 6410 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
6411 | ; /* keep reading */ |
6412 | cnt = bp - buf; | |
c07a80fd | 6413 | } |
6414 | else { | |
760ac839 | 6415 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 6416 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
6417 | * both args of ?: operator, causing EOF to change into 255 | |
6418 | */ | |
37be0adf | 6419 | if (cnt > 0) |
cbe9e203 JH |
6420 | i = (U8)buf[cnt - 1]; |
6421 | else | |
37be0adf | 6422 | i = EOF; |
c07a80fd | 6423 | } |
79072805 | 6424 | |
cbe9e203 JH |
6425 | if (cnt < 0) |
6426 | cnt = 0; /* we do need to re-set the sv even when cnt <= 0 */ | |
6427 | if (append) | |
6428 | sv_catpvn(sv, (char *) buf, cnt); | |
6429 | else | |
6430 | sv_setpvn(sv, (char *) buf, cnt); | |
c07a80fd | 6431 | |
6432 | if (i != EOF && /* joy */ | |
6433 | (!rslen || | |
6434 | SvCUR(sv) < rslen || | |
36477c24 | 6435 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
6436 | { |
6437 | append = -1; | |
63e4d877 CS |
6438 | /* |
6439 | * If we're reading from a TTY and we get a short read, | |
6440 | * indicating that the user hit his EOF character, we need | |
6441 | * to notice it now, because if we try to read from the TTY | |
6442 | * again, the EOF condition will disappear. | |
6443 | * | |
6444 | * The comparison of cnt to sizeof(buf) is an optimization | |
6445 | * that prevents unnecessary calls to feof(). | |
6446 | * | |
6447 | * - jik 9/25/96 | |
6448 | */ | |
6449 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
6450 | goto screamer2; | |
79072805 | 6451 | } |
2ee2a917 JH |
6452 | |
6453 | #ifdef USEHEAPINSTEADOFSTACK | |
6454 | Safefree(buf); | |
6455 | #endif | |
79072805 LW |
6456 | } |
6457 | ||
8bfdd7d9 | 6458 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 6459 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 6460 | i = PerlIO_getc(fp); |
79072805 | 6461 | if (i != '\n') { |
760ac839 | 6462 | PerlIO_ungetc(fp,i); |
79072805 LW |
6463 | break; |
6464 | } | |
6465 | } | |
6466 | } | |
c07a80fd | 6467 | |
251c53ad | 6468 | return_string_or_null: |
c07a80fd | 6469 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
6470 | } |
6471 | ||
954c1994 GS |
6472 | /* |
6473 | =for apidoc sv_inc | |
6474 | ||
645c22ef DM |
6475 | Auto-increment of the value in the SV, doing string to numeric conversion |
6476 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6477 | |
6478 | =cut | |
6479 | */ | |
6480 | ||
79072805 | 6481 | void |
864dbfa3 | 6482 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
6483 | { |
6484 | register char *d; | |
463ee0b2 | 6485 | int flags; |
79072805 LW |
6486 | |
6487 | if (!sv) | |
6488 | return; | |
b23a5f78 GB |
6489 | if (SvGMAGICAL(sv)) |
6490 | mg_get(sv); | |
ed6116ce | 6491 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6492 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6493 | sv_force_normal(sv); | |
0f15f207 | 6494 | if (SvREADONLY(sv)) { |
ef7b71f0 | 6495 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 6496 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6497 | } |
a0d0e21e | 6498 | if (SvROK(sv)) { |
b5be31e9 | 6499 | IV i; |
9e7bc3e8 JD |
6500 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
6501 | return; | |
56431972 | 6502 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6503 | sv_unref(sv); |
6504 | sv_setiv(sv, i); | |
a0d0e21e | 6505 | } |
ed6116ce | 6506 | } |
8990e307 | 6507 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6508 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
6509 | /* It's (privately or publicly) a float, but not tested as an | |
6510 | integer, so test it to see. */ | |
d460ef45 | 6511 | (void) SvIV(sv); |
28e5dec8 JH |
6512 | flags = SvFLAGS(sv); |
6513 | } | |
6514 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
6515 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6516 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6517 | oops_its_int: |
59d8ce62 | 6518 | #endif |
25da4f38 IZ |
6519 | if (SvIsUV(sv)) { |
6520 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 6521 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
6522 | else |
6523 | (void)SvIOK_only_UV(sv); | |
6524 | ++SvUVX(sv); | |
6525 | } else { | |
6526 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 6527 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
6528 | else { |
6529 | (void)SvIOK_only(sv); | |
6530 | ++SvIVX(sv); | |
1c846c1f | 6531 | } |
55497cff | 6532 | } |
79072805 LW |
6533 | return; |
6534 | } | |
28e5dec8 JH |
6535 | if (flags & SVp_NOK) { |
6536 | (void)SvNOK_only(sv); | |
6537 | SvNVX(sv) += 1.0; | |
6538 | return; | |
6539 | } | |
6540 | ||
8990e307 | 6541 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
6542 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
6543 | sv_upgrade(sv, SVt_IV); | |
6544 | (void)SvIOK_only(sv); | |
6545 | SvIVX(sv) = 1; | |
79072805 LW |
6546 | return; |
6547 | } | |
463ee0b2 | 6548 | d = SvPVX(sv); |
79072805 LW |
6549 | while (isALPHA(*d)) d++; |
6550 | while (isDIGIT(*d)) d++; | |
6551 | if (*d) { | |
28e5dec8 | 6552 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6553 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6554 | warnings. Probably ought to make the sv_iv_please() that does |
6555 | the conversion if possible, and silently. */ | |
c2988b20 | 6556 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6557 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6558 | /* Need to try really hard to see if it's an integer. | |
6559 | 9.22337203685478e+18 is an integer. | |
6560 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6561 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6562 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6563 | or we go insane. */ | |
d460ef45 | 6564 | |
28e5dec8 JH |
6565 | (void) sv_2iv(sv); |
6566 | if (SvIOK(sv)) | |
6567 | goto oops_its_int; | |
6568 | ||
6569 | /* sv_2iv *should* have made this an NV */ | |
6570 | if (flags & SVp_NOK) { | |
6571 | (void)SvNOK_only(sv); | |
6572 | SvNVX(sv) += 1.0; | |
6573 | return; | |
6574 | } | |
6575 | /* I don't think we can get here. Maybe I should assert this | |
6576 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6577 | Fall through. */ | |
6578 | #if defined(USE_LONG_DOUBLE) | |
6579 | 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", | |
6580 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6581 | #else | |
1779d84d | 6582 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
6583 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6584 | #endif | |
6585 | } | |
6586 | #endif /* PERL_PRESERVE_IVUV */ | |
6587 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
6588 | return; |
6589 | } | |
6590 | d--; | |
463ee0b2 | 6591 | while (d >= SvPVX(sv)) { |
79072805 LW |
6592 | if (isDIGIT(*d)) { |
6593 | if (++*d <= '9') | |
6594 | return; | |
6595 | *(d--) = '0'; | |
6596 | } | |
6597 | else { | |
9d116dd7 JH |
6598 | #ifdef EBCDIC |
6599 | /* MKS: The original code here died if letters weren't consecutive. | |
6600 | * at least it didn't have to worry about non-C locales. The | |
6601 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6602 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6603 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6604 | */ | |
6605 | if (*d != 'z' && *d != 'Z') { | |
6606 | do { ++*d; } while (!isALPHA(*d)); | |
6607 | return; | |
6608 | } | |
6609 | *(d--) -= 'z' - 'a'; | |
6610 | #else | |
79072805 LW |
6611 | ++*d; |
6612 | if (isALPHA(*d)) | |
6613 | return; | |
6614 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 6615 | #endif |
79072805 LW |
6616 | } |
6617 | } | |
6618 | /* oh,oh, the number grew */ | |
6619 | SvGROW(sv, SvCUR(sv) + 2); | |
6620 | SvCUR(sv)++; | |
463ee0b2 | 6621 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
6622 | *d = d[-1]; |
6623 | if (isDIGIT(d[1])) | |
6624 | *d = '1'; | |
6625 | else | |
6626 | *d = d[1]; | |
6627 | } | |
6628 | ||
954c1994 GS |
6629 | /* |
6630 | =for apidoc sv_dec | |
6631 | ||
645c22ef DM |
6632 | Auto-decrement of the value in the SV, doing string to numeric conversion |
6633 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6634 | |
6635 | =cut | |
6636 | */ | |
6637 | ||
79072805 | 6638 | void |
864dbfa3 | 6639 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 6640 | { |
463ee0b2 LW |
6641 | int flags; |
6642 | ||
79072805 LW |
6643 | if (!sv) |
6644 | return; | |
b23a5f78 GB |
6645 | if (SvGMAGICAL(sv)) |
6646 | mg_get(sv); | |
ed6116ce | 6647 | if (SvTHINKFIRST(sv)) { |
3510b4a1 NC |
6648 | if (SvREADONLY(sv) && SvFAKE(sv)) |
6649 | sv_force_normal(sv); | |
0f15f207 | 6650 | if (SvREADONLY(sv)) { |
ef7b71f0 | 6651 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 6652 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6653 | } |
a0d0e21e | 6654 | if (SvROK(sv)) { |
b5be31e9 | 6655 | IV i; |
9e7bc3e8 JD |
6656 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
6657 | return; | |
56431972 | 6658 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6659 | sv_unref(sv); |
6660 | sv_setiv(sv, i); | |
a0d0e21e | 6661 | } |
ed6116ce | 6662 | } |
28e5dec8 JH |
6663 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
6664 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 6665 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6666 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
6667 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6668 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6669 | oops_its_int: |
59d8ce62 | 6670 | #endif |
25da4f38 IZ |
6671 | if (SvIsUV(sv)) { |
6672 | if (SvUVX(sv) == 0) { | |
6673 | (void)SvIOK_only(sv); | |
6674 | SvIVX(sv) = -1; | |
6675 | } | |
6676 | else { | |
6677 | (void)SvIOK_only_UV(sv); | |
6678 | --SvUVX(sv); | |
1c846c1f | 6679 | } |
25da4f38 IZ |
6680 | } else { |
6681 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 6682 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
6683 | else { |
6684 | (void)SvIOK_only(sv); | |
6685 | --SvIVX(sv); | |
1c846c1f | 6686 | } |
55497cff | 6687 | } |
6688 | return; | |
6689 | } | |
28e5dec8 JH |
6690 | if (flags & SVp_NOK) { |
6691 | SvNVX(sv) -= 1.0; | |
6692 | (void)SvNOK_only(sv); | |
6693 | return; | |
6694 | } | |
8990e307 | 6695 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
6696 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
6697 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 6698 | SvNVX(sv) = -1.0; |
a0d0e21e | 6699 | (void)SvNOK_only(sv); |
79072805 LW |
6700 | return; |
6701 | } | |
28e5dec8 JH |
6702 | #ifdef PERL_PRESERVE_IVUV |
6703 | { | |
c2988b20 | 6704 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6705 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6706 | /* Need to try really hard to see if it's an integer. | |
6707 | 9.22337203685478e+18 is an integer. | |
6708 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6709 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
6710 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
6711 | or we go insane. */ | |
d460ef45 | 6712 | |
28e5dec8 JH |
6713 | (void) sv_2iv(sv); |
6714 | if (SvIOK(sv)) | |
6715 | goto oops_its_int; | |
6716 | ||
6717 | /* sv_2iv *should* have made this an NV */ | |
6718 | if (flags & SVp_NOK) { | |
6719 | (void)SvNOK_only(sv); | |
6720 | SvNVX(sv) -= 1.0; | |
6721 | return; | |
6722 | } | |
6723 | /* I don't think we can get here. Maybe I should assert this | |
6724 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6725 | Fall through. */ | |
6726 | #if defined(USE_LONG_DOUBLE) | |
6727 | 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", | |
6728 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
6729 | #else | |
1779d84d | 6730 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
6731 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
6732 | #endif | |
6733 | } | |
6734 | } | |
6735 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 6736 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
6737 | } |
6738 | ||
954c1994 GS |
6739 | /* |
6740 | =for apidoc sv_mortalcopy | |
6741 | ||
645c22ef | 6742 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
6743 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
6744 | explicit call to FREETMPS, or by an implicit call at places such as | |
6745 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
6746 | |
6747 | =cut | |
6748 | */ | |
6749 | ||
79072805 LW |
6750 | /* Make a string that will exist for the duration of the expression |
6751 | * evaluation. Actually, it may have to last longer than that, but | |
6752 | * hopefully we won't free it until it has been assigned to a | |
6753 | * permanent location. */ | |
6754 | ||
6755 | SV * | |
864dbfa3 | 6756 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 6757 | { |
463ee0b2 | 6758 | register SV *sv; |
b881518d | 6759 | |
4561caa4 | 6760 | new_SV(sv); |
79072805 | 6761 | sv_setsv(sv,oldstr); |
677b06e3 GS |
6762 | EXTEND_MORTAL(1); |
6763 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
6764 | SvTEMP_on(sv); |
6765 | return sv; | |
6766 | } | |
6767 | ||
954c1994 GS |
6768 | /* |
6769 | =for apidoc sv_newmortal | |
6770 | ||
645c22ef | 6771 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
6772 | set to 1. It will be destroyed "soon", either by an explicit call to |
6773 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
6774 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
6775 | |
6776 | =cut | |
6777 | */ | |
6778 | ||
8990e307 | 6779 | SV * |
864dbfa3 | 6780 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
6781 | { |
6782 | register SV *sv; | |
6783 | ||
4561caa4 | 6784 | new_SV(sv); |
8990e307 | 6785 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
6786 | EXTEND_MORTAL(1); |
6787 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
6788 | return sv; |
6789 | } | |
6790 | ||
954c1994 GS |
6791 | /* |
6792 | =for apidoc sv_2mortal | |
6793 | ||
d4236ebc DM |
6794 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
6795 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
6796 | statement boundaries. See also C<sv_newmortal> and C<sv_mortalcopy>. | |
954c1994 GS |
6797 | |
6798 | =cut | |
6799 | */ | |
6800 | ||
79072805 | 6801 | SV * |
864dbfa3 | 6802 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 LW |
6803 | { |
6804 | if (!sv) | |
6805 | return sv; | |
d689ffdd | 6806 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 6807 | return sv; |
677b06e3 GS |
6808 | EXTEND_MORTAL(1); |
6809 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 6810 | SvTEMP_on(sv); |
79072805 LW |
6811 | return sv; |
6812 | } | |
6813 | ||
954c1994 GS |
6814 | /* |
6815 | =for apidoc newSVpv | |
6816 | ||
6817 | Creates a new SV and copies a string into it. The reference count for the | |
6818 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
6819 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
6820 | ||
6821 | =cut | |
6822 | */ | |
6823 | ||
79072805 | 6824 | SV * |
864dbfa3 | 6825 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 6826 | { |
463ee0b2 | 6827 | register SV *sv; |
79072805 | 6828 | |
4561caa4 | 6829 | new_SV(sv); |
79072805 LW |
6830 | if (!len) |
6831 | len = strlen(s); | |
6832 | sv_setpvn(sv,s,len); | |
6833 | return sv; | |
6834 | } | |
6835 | ||
954c1994 GS |
6836 | /* |
6837 | =for apidoc newSVpvn | |
6838 | ||
6839 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 6840 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 | 6841 | string. You are responsible for ensuring that the source string is at least |
611e9550 | 6842 | C<len> bytes long. If the C<s> argument is NULL the new SV will be undefined. |
954c1994 GS |
6843 | |
6844 | =cut | |
6845 | */ | |
6846 | ||
9da1e3b5 | 6847 | SV * |
864dbfa3 | 6848 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
6849 | { |
6850 | register SV *sv; | |
6851 | ||
6852 | new_SV(sv); | |
9da1e3b5 MUN |
6853 | sv_setpvn(sv,s,len); |
6854 | return sv; | |
6855 | } | |
6856 | ||
1c846c1f NIS |
6857 | /* |
6858 | =for apidoc newSVpvn_share | |
6859 | ||
645c22ef DM |
6860 | Creates a new SV with its SvPVX pointing to a shared string in the string |
6861 | table. If the string does not already exist in the table, it is created | |
6862 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
6863 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
6864 | otherwise the hash is computed. The idea here is that as the string table | |
6865 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
6866 | hash lookup will avoid string compare. | |
1c846c1f NIS |
6867 | |
6868 | =cut | |
6869 | */ | |
6870 | ||
6871 | SV * | |
c3654f1a | 6872 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
6873 | { |
6874 | register SV *sv; | |
c3654f1a IH |
6875 | bool is_utf8 = FALSE; |
6876 | if (len < 0) { | |
77caf834 | 6877 | STRLEN tmplen = -len; |
c3654f1a | 6878 | is_utf8 = TRUE; |
75a54232 JH |
6879 | /* See the note in hv.c:hv_fetch() --jhi */ |
6880 | src = (char*)bytes_from_utf8((U8*)src, &tmplen, &is_utf8); | |
6881 | len = tmplen; | |
6882 | } | |
1c846c1f | 6883 | if (!hash) |
5afd6d42 | 6884 | PERL_HASH(hash, src, len); |
1c846c1f NIS |
6885 | new_SV(sv); |
6886 | sv_upgrade(sv, SVt_PVIV); | |
c3654f1a | 6887 | SvPVX(sv) = sharepvn(src, is_utf8?-len:len, hash); |
1c846c1f NIS |
6888 | SvCUR(sv) = len; |
6889 | SvUVX(sv) = hash; | |
6890 | SvLEN(sv) = 0; | |
6891 | SvREADONLY_on(sv); | |
6892 | SvFAKE_on(sv); | |
6893 | SvPOK_on(sv); | |
c3654f1a IH |
6894 | if (is_utf8) |
6895 | SvUTF8_on(sv); | |
1c846c1f NIS |
6896 | return sv; |
6897 | } | |
6898 | ||
645c22ef | 6899 | |
cea2e8a9 | 6900 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
6901 | |
6902 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
6903 | * version of the main function, (which may itself be aliased to us). | |
6904 | * Don't access this version directly. | |
6905 | */ | |
6906 | ||
46fc3d4c | 6907 | SV * |
cea2e8a9 | 6908 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 6909 | { |
cea2e8a9 | 6910 | dTHX; |
46fc3d4c | 6911 | register SV *sv; |
6912 | va_list args; | |
46fc3d4c | 6913 | va_start(args, pat); |
c5be433b | 6914 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 6915 | va_end(args); |
6916 | return sv; | |
6917 | } | |
cea2e8a9 | 6918 | #endif |
46fc3d4c | 6919 | |
954c1994 GS |
6920 | /* |
6921 | =for apidoc newSVpvf | |
6922 | ||
645c22ef | 6923 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
6924 | C<sprintf>. |
6925 | ||
6926 | =cut | |
6927 | */ | |
6928 | ||
cea2e8a9 GS |
6929 | SV * |
6930 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
6931 | { | |
6932 | register SV *sv; | |
6933 | va_list args; | |
cea2e8a9 | 6934 | va_start(args, pat); |
c5be433b | 6935 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
6936 | va_end(args); |
6937 | return sv; | |
6938 | } | |
46fc3d4c | 6939 | |
645c22ef DM |
6940 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
6941 | ||
79072805 | 6942 | SV * |
c5be433b GS |
6943 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
6944 | { | |
6945 | register SV *sv; | |
6946 | new_SV(sv); | |
6947 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
6948 | return sv; | |
6949 | } | |
6950 | ||
954c1994 GS |
6951 | /* |
6952 | =for apidoc newSVnv | |
6953 | ||
6954 | Creates a new SV and copies a floating point value into it. | |
6955 | The reference count for the SV is set to 1. | |
6956 | ||
6957 | =cut | |
6958 | */ | |
6959 | ||
c5be433b | 6960 | SV * |
65202027 | 6961 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 6962 | { |
463ee0b2 | 6963 | register SV *sv; |
79072805 | 6964 | |
4561caa4 | 6965 | new_SV(sv); |
79072805 LW |
6966 | sv_setnv(sv,n); |
6967 | return sv; | |
6968 | } | |
6969 | ||
954c1994 GS |
6970 | /* |
6971 | =for apidoc newSViv | |
6972 | ||
6973 | Creates a new SV and copies an integer into it. The reference count for the | |
6974 | SV is set to 1. | |
6975 | ||
6976 | =cut | |
6977 | */ | |
6978 | ||
79072805 | 6979 | SV * |
864dbfa3 | 6980 | Perl_newSViv(pTHX_ IV i) |
79072805 | 6981 | { |
463ee0b2 | 6982 | register SV *sv; |
79072805 | 6983 | |
4561caa4 | 6984 | new_SV(sv); |
79072805 LW |
6985 | sv_setiv(sv,i); |
6986 | return sv; | |
6987 | } | |
6988 | ||
954c1994 | 6989 | /* |
1a3327fb JH |
6990 | =for apidoc newSVuv |
6991 | ||
6992 | Creates a new SV and copies an unsigned integer into it. | |
6993 | The reference count for the SV is set to 1. | |
6994 | ||
6995 | =cut | |
6996 | */ | |
6997 | ||
6998 | SV * | |
6999 | Perl_newSVuv(pTHX_ UV u) | |
7000 | { | |
7001 | register SV *sv; | |
7002 | ||
7003 | new_SV(sv); | |
7004 | sv_setuv(sv,u); | |
7005 | return sv; | |
7006 | } | |
7007 | ||
7008 | /* | |
954c1994 GS |
7009 | =for apidoc newRV_noinc |
7010 | ||
7011 | Creates an RV wrapper for an SV. The reference count for the original | |
7012 | SV is B<not> incremented. | |
7013 | ||
7014 | =cut | |
7015 | */ | |
7016 | ||
2304df62 | 7017 | SV * |
864dbfa3 | 7018 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
7019 | { |
7020 | register SV *sv; | |
7021 | ||
4561caa4 | 7022 | new_SV(sv); |
2304df62 | 7023 | sv_upgrade(sv, SVt_RV); |
76e3520e | 7024 | SvTEMP_off(tmpRef); |
d689ffdd | 7025 | SvRV(sv) = tmpRef; |
2304df62 | 7026 | SvROK_on(sv); |
2304df62 AD |
7027 | return sv; |
7028 | } | |
7029 | ||
ff276b08 | 7030 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
7031 | * newRV_inc is in fact #defined to newRV in sv.h |
7032 | */ | |
7033 | ||
5f05dabc | 7034 | SV * |
864dbfa3 | 7035 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 7036 | { |
5f6447b6 | 7037 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 7038 | } |
5f05dabc | 7039 | |
954c1994 GS |
7040 | /* |
7041 | =for apidoc newSVsv | |
7042 | ||
7043 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 7044 | (Uses C<sv_setsv>). |
954c1994 GS |
7045 | |
7046 | =cut | |
7047 | */ | |
7048 | ||
79072805 | 7049 | SV * |
864dbfa3 | 7050 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 7051 | { |
463ee0b2 | 7052 | register SV *sv; |
79072805 LW |
7053 | |
7054 | if (!old) | |
7055 | return Nullsv; | |
8990e307 | 7056 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 7057 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 7058 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
7059 | return Nullsv; |
7060 | } | |
4561caa4 | 7061 | new_SV(sv); |
ff68c719 | 7062 | if (SvTEMP(old)) { |
7063 | SvTEMP_off(old); | |
463ee0b2 | 7064 | sv_setsv(sv,old); |
ff68c719 | 7065 | SvTEMP_on(old); |
79072805 LW |
7066 | } |
7067 | else | |
463ee0b2 LW |
7068 | sv_setsv(sv,old); |
7069 | return sv; | |
79072805 LW |
7070 | } |
7071 | ||
645c22ef DM |
7072 | /* |
7073 | =for apidoc sv_reset | |
7074 | ||
7075 | Underlying implementation for the C<reset> Perl function. | |
7076 | Note that the perl-level function is vaguely deprecated. | |
7077 | ||
7078 | =cut | |
7079 | */ | |
7080 | ||
79072805 | 7081 | void |
864dbfa3 | 7082 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
7083 | { |
7084 | register HE *entry; | |
7085 | register GV *gv; | |
7086 | register SV *sv; | |
7087 | register I32 i; | |
7088 | register PMOP *pm; | |
7089 | register I32 max; | |
4802d5d7 | 7090 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 7091 | |
49d8d3a1 MB |
7092 | if (!stash) |
7093 | return; | |
7094 | ||
79072805 LW |
7095 | if (!*s) { /* reset ?? searches */ |
7096 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 7097 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
7098 | } |
7099 | return; | |
7100 | } | |
7101 | ||
7102 | /* reset variables */ | |
7103 | ||
7104 | if (!HvARRAY(stash)) | |
7105 | return; | |
463ee0b2 LW |
7106 | |
7107 | Zero(todo, 256, char); | |
79072805 | 7108 | while (*s) { |
4802d5d7 | 7109 | i = (unsigned char)*s; |
79072805 LW |
7110 | if (s[1] == '-') { |
7111 | s += 2; | |
7112 | } | |
4802d5d7 | 7113 | max = (unsigned char)*s++; |
79072805 | 7114 | for ( ; i <= max; i++) { |
463ee0b2 LW |
7115 | todo[i] = 1; |
7116 | } | |
a0d0e21e | 7117 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 7118 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
7119 | entry; |
7120 | entry = HeNEXT(entry)) | |
7121 | { | |
1edc1566 | 7122 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 7123 | continue; |
1edc1566 | 7124 | gv = (GV*)HeVAL(entry); |
79072805 | 7125 | sv = GvSV(gv); |
9e35f4b3 GS |
7126 | if (SvTHINKFIRST(sv)) { |
7127 | if (!SvREADONLY(sv) && SvROK(sv)) | |
7128 | sv_unref(sv); | |
7129 | continue; | |
7130 | } | |
a0d0e21e | 7131 | (void)SvOK_off(sv); |
79072805 LW |
7132 | if (SvTYPE(sv) >= SVt_PV) { |
7133 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
7134 | if (SvPVX(sv) != Nullch) |
7135 | *SvPVX(sv) = '\0'; | |
44a8e56a | 7136 | SvTAINT(sv); |
79072805 LW |
7137 | } |
7138 | if (GvAV(gv)) { | |
7139 | av_clear(GvAV(gv)); | |
7140 | } | |
44a8e56a | 7141 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 7142 | hv_clear(GvHV(gv)); |
75a5c1c6 | 7143 | #ifndef PERL_MICRO |
fa6a1c44 | 7144 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
7145 | if (gv == PL_envgv |
7146 | # ifdef USE_ITHREADS | |
7147 | && PL_curinterp == aTHX | |
7148 | # endif | |
7149 | ) | |
7150 | { | |
79072805 | 7151 | environ[0] = Nullch; |
4efc5df6 | 7152 | } |
a0d0e21e | 7153 | #endif |
75a5c1c6 | 7154 | #endif /* !PERL_MICRO */ |
79072805 LW |
7155 | } |
7156 | } | |
7157 | } | |
7158 | } | |
7159 | } | |
7160 | ||
645c22ef DM |
7161 | /* |
7162 | =for apidoc sv_2io | |
7163 | ||
7164 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
7165 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
7166 | named after the PV if we're a string. | |
7167 | ||
7168 | =cut | |
7169 | */ | |
7170 | ||
46fc3d4c | 7171 | IO* |
864dbfa3 | 7172 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 7173 | { |
7174 | IO* io; | |
7175 | GV* gv; | |
2d8e6c8d | 7176 | STRLEN n_a; |
46fc3d4c | 7177 | |
7178 | switch (SvTYPE(sv)) { | |
7179 | case SVt_PVIO: | |
7180 | io = (IO*)sv; | |
7181 | break; | |
7182 | case SVt_PVGV: | |
7183 | gv = (GV*)sv; | |
7184 | io = GvIO(gv); | |
7185 | if (!io) | |
cea2e8a9 | 7186 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 7187 | break; |
7188 | default: | |
7189 | if (!SvOK(sv)) | |
cea2e8a9 | 7190 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 7191 | if (SvROK(sv)) |
7192 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 7193 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 7194 | if (gv) |
7195 | io = GvIO(gv); | |
7196 | else | |
7197 | io = 0; | |
7198 | if (!io) | |
c293eb2b | 7199 | Perl_croak(aTHX_ "Bad filehandle: %"SVf, sv); |
46fc3d4c | 7200 | break; |
7201 | } | |
7202 | return io; | |
7203 | } | |
7204 | ||
645c22ef DM |
7205 | /* |
7206 | =for apidoc sv_2cv | |
7207 | ||
7208 | Using various gambits, try to get a CV from an SV; in addition, try if | |
7209 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
7210 | ||
7211 | =cut | |
7212 | */ | |
7213 | ||
79072805 | 7214 | CV * |
864dbfa3 | 7215 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 7216 | { |
c04a4dfe JH |
7217 | GV *gv = Nullgv; |
7218 | CV *cv = Nullcv; | |
2d8e6c8d | 7219 | STRLEN n_a; |
79072805 LW |
7220 | |
7221 | if (!sv) | |
93a17b20 | 7222 | return *gvp = Nullgv, Nullcv; |
79072805 | 7223 | switch (SvTYPE(sv)) { |
79072805 LW |
7224 | case SVt_PVCV: |
7225 | *st = CvSTASH(sv); | |
7226 | *gvp = Nullgv; | |
7227 | return (CV*)sv; | |
7228 | case SVt_PVHV: | |
7229 | case SVt_PVAV: | |
7230 | *gvp = Nullgv; | |
7231 | return Nullcv; | |
8990e307 LW |
7232 | case SVt_PVGV: |
7233 | gv = (GV*)sv; | |
a0d0e21e | 7234 | *gvp = gv; |
8990e307 LW |
7235 | *st = GvESTASH(gv); |
7236 | goto fix_gv; | |
7237 | ||
79072805 | 7238 | default: |
a0d0e21e LW |
7239 | if (SvGMAGICAL(sv)) |
7240 | mg_get(sv); | |
7241 | if (SvROK(sv)) { | |
f5284f61 IZ |
7242 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
7243 | tryAMAGICunDEREF(to_cv); | |
7244 | ||
62f274bf GS |
7245 | sv = SvRV(sv); |
7246 | if (SvTYPE(sv) == SVt_PVCV) { | |
7247 | cv = (CV*)sv; | |
7248 | *gvp = Nullgv; | |
7249 | *st = CvSTASH(cv); | |
7250 | return cv; | |
7251 | } | |
7252 | else if(isGV(sv)) | |
7253 | gv = (GV*)sv; | |
7254 | else | |
cea2e8a9 | 7255 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 7256 | } |
62f274bf | 7257 | else if (isGV(sv)) |
79072805 LW |
7258 | gv = (GV*)sv; |
7259 | else | |
2d8e6c8d | 7260 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
7261 | *gvp = gv; |
7262 | if (!gv) | |
7263 | return Nullcv; | |
7264 | *st = GvESTASH(gv); | |
8990e307 | 7265 | fix_gv: |
8ebc5c01 | 7266 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 7267 | SV *tmpsv; |
748a9306 | 7268 | ENTER; |
4633a7c4 | 7269 | tmpsv = NEWSV(704,0); |
16660edb | 7270 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
7271 | /* XXX this is probably not what they think they're getting. |
7272 | * It has the same effect as "sub name;", i.e. just a forward | |
7273 | * declaration! */ | |
774d564b | 7274 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
7275 | newSVOP(OP_CONST, 0, tmpsv), |
7276 | Nullop, | |
8990e307 | 7277 | Nullop); |
748a9306 | 7278 | LEAVE; |
8ebc5c01 | 7279 | if (!GvCVu(gv)) |
c293eb2b NC |
7280 | Perl_croak(aTHX_ "Unable to create sub named \"%"SVf"\"", |
7281 | sv); | |
8990e307 | 7282 | } |
8ebc5c01 | 7283 | return GvCVu(gv); |
79072805 LW |
7284 | } |
7285 | } | |
7286 | ||
c461cf8f JH |
7287 | /* |
7288 | =for apidoc sv_true | |
7289 | ||
7290 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
7291 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
7292 | instead use an in-line version. | |
c461cf8f JH |
7293 | |
7294 | =cut | |
7295 | */ | |
7296 | ||
79072805 | 7297 | I32 |
864dbfa3 | 7298 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 7299 | { |
8990e307 LW |
7300 | if (!sv) |
7301 | return 0; | |
79072805 | 7302 | if (SvPOK(sv)) { |
4e35701f NIS |
7303 | register XPV* tXpv; |
7304 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 7305 | (tXpv->xpv_cur > 1 || |
4e35701f | 7306 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
7307 | return 1; |
7308 | else | |
7309 | return 0; | |
7310 | } | |
7311 | else { | |
7312 | if (SvIOK(sv)) | |
463ee0b2 | 7313 | return SvIVX(sv) != 0; |
79072805 LW |
7314 | else { |
7315 | if (SvNOK(sv)) | |
463ee0b2 | 7316 | return SvNVX(sv) != 0.0; |
79072805 | 7317 | else |
463ee0b2 | 7318 | return sv_2bool(sv); |
79072805 LW |
7319 | } |
7320 | } | |
7321 | } | |
79072805 | 7322 | |
645c22ef DM |
7323 | /* |
7324 | =for apidoc sv_iv | |
7325 | ||
7326 | A private implementation of the C<SvIVx> macro for compilers which can't | |
7327 | cope with complex macro expressions. Always use the macro instead. | |
7328 | ||
7329 | =cut | |
7330 | */ | |
7331 | ||
ff68c719 | 7332 | IV |
864dbfa3 | 7333 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 7334 | { |
25da4f38 IZ |
7335 | if (SvIOK(sv)) { |
7336 | if (SvIsUV(sv)) | |
7337 | return (IV)SvUVX(sv); | |
ff68c719 | 7338 | return SvIVX(sv); |
25da4f38 | 7339 | } |
ff68c719 | 7340 | return sv_2iv(sv); |
85e6fe83 | 7341 | } |
85e6fe83 | 7342 | |
645c22ef DM |
7343 | /* |
7344 | =for apidoc sv_uv | |
7345 | ||
7346 | A private implementation of the C<SvUVx> macro for compilers which can't | |
7347 | cope with complex macro expressions. Always use the macro instead. | |
7348 | ||
7349 | =cut | |
7350 | */ | |
7351 | ||
ff68c719 | 7352 | UV |
864dbfa3 | 7353 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 7354 | { |
25da4f38 IZ |
7355 | if (SvIOK(sv)) { |
7356 | if (SvIsUV(sv)) | |
7357 | return SvUVX(sv); | |
7358 | return (UV)SvIVX(sv); | |
7359 | } | |
ff68c719 | 7360 | return sv_2uv(sv); |
7361 | } | |
85e6fe83 | 7362 | |
645c22ef DM |
7363 | /* |
7364 | =for apidoc sv_nv | |
7365 | ||
7366 | A private implementation of the C<SvNVx> macro for compilers which can't | |
7367 | cope with complex macro expressions. Always use the macro instead. | |
7368 | ||
7369 | =cut | |
7370 | */ | |
7371 | ||
65202027 | 7372 | NV |
864dbfa3 | 7373 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 7374 | { |
ff68c719 | 7375 | if (SvNOK(sv)) |
7376 | return SvNVX(sv); | |
7377 | return sv_2nv(sv); | |
79072805 | 7378 | } |
79072805 | 7379 | |
d34f9d2e JH |
7380 | /* sv_pv() is now a macro using SvPV_nolen(); |
7381 | * this function provided for binary compatibility only | |
7382 | */ | |
7383 | ||
7384 | char * | |
7385 | Perl_sv_pv(pTHX_ SV *sv) | |
7386 | { | |
7387 | STRLEN n_a; | |
7388 | ||
7389 | if (SvPOK(sv)) | |
7390 | return SvPVX(sv); | |
7391 | ||
7392 | return sv_2pv(sv, &n_a); | |
7393 | } | |
7394 | ||
645c22ef DM |
7395 | /* |
7396 | =for apidoc sv_pv | |
7397 | ||
baca2b92 | 7398 | Use the C<SvPV_nolen> macro instead |
645c22ef | 7399 | |
645c22ef DM |
7400 | =for apidoc sv_pvn |
7401 | ||
7402 | A private implementation of the C<SvPV> macro for compilers which can't | |
7403 | cope with complex macro expressions. Always use the macro instead. | |
7404 | ||
7405 | =cut | |
7406 | */ | |
7407 | ||
1fa8b10d | 7408 | char * |
864dbfa3 | 7409 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 7410 | { |
85e6fe83 LW |
7411 | if (SvPOK(sv)) { |
7412 | *lp = SvCUR(sv); | |
a0d0e21e | 7413 | return SvPVX(sv); |
85e6fe83 | 7414 | } |
463ee0b2 | 7415 | return sv_2pv(sv, lp); |
79072805 | 7416 | } |
79072805 | 7417 | |
6e9d1081 NC |
7418 | |
7419 | char * | |
7420 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
7421 | { | |
7422 | if (SvPOK(sv)) { | |
7423 | *lp = SvCUR(sv); | |
7424 | return SvPVX(sv); | |
7425 | } | |
7426 | return sv_2pv_flags(sv, lp, 0); | |
7427 | } | |
7428 | ||
d34f9d2e JH |
7429 | /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags(); |
7430 | * this function provided for binary compatibility only | |
7431 | */ | |
7432 | ||
7433 | char * | |
7434 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) | |
7435 | { | |
7436 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); | |
7437 | } | |
7438 | ||
c461cf8f JH |
7439 | /* |
7440 | =for apidoc sv_pvn_force | |
7441 | ||
7442 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
7443 | A private implementation of the C<SvPV_force> macro for compilers which |
7444 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 7445 | |
8d6d96c1 HS |
7446 | =for apidoc sv_pvn_force_flags |
7447 | ||
7448 | Get a sensible string out of the SV somehow. | |
7449 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
7450 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
7451 | implemented in terms of this function. | |
645c22ef DM |
7452 | You normally want to use the various wrapper macros instead: see |
7453 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
7454 | |
7455 | =cut | |
7456 | */ | |
7457 | ||
7458 | char * | |
7459 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
7460 | { | |
c04a4dfe | 7461 | char *s = NULL; |
a0d0e21e | 7462 | |
6fc92669 GS |
7463 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
7464 | sv_force_normal(sv); | |
1c846c1f | 7465 | |
a0d0e21e LW |
7466 | if (SvPOK(sv)) { |
7467 | *lp = SvCUR(sv); | |
7468 | } | |
7469 | else { | |
748a9306 | 7470 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 7471 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 7472 | OP_NAME(PL_op)); |
a0d0e21e | 7473 | } |
4633a7c4 | 7474 | else |
8d6d96c1 | 7475 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
7476 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
7477 | STRLEN len = *lp; | |
1c846c1f | 7478 | |
a0d0e21e LW |
7479 | if (SvROK(sv)) |
7480 | sv_unref(sv); | |
7481 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
7482 | SvGROW(sv, len + 1); | |
7483 | Move(s,SvPVX(sv),len,char); | |
7484 | SvCUR_set(sv, len); | |
7485 | *SvEND(sv) = '\0'; | |
7486 | } | |
7487 | if (!SvPOK(sv)) { | |
7488 | SvPOK_on(sv); /* validate pointer */ | |
7489 | SvTAINT(sv); | |
1d7c1841 GS |
7490 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
7491 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
7492 | } |
7493 | } | |
7494 | return SvPVX(sv); | |
7495 | } | |
7496 | ||
d34f9d2e JH |
7497 | /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags(); |
7498 | * this function provided for binary compatibility only | |
7499 | */ | |
7500 | ||
7501 | char * | |
7502 | Perl_sv_pvbyte(pTHX_ SV *sv) | |
7503 | { | |
7504 | sv_utf8_downgrade(sv,0); | |
7505 | return sv_pv(sv); | |
7506 | } | |
7507 | ||
645c22ef DM |
7508 | /* |
7509 | =for apidoc sv_pvbyte | |
7510 | ||
baca2b92 | 7511 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 7512 | |
645c22ef DM |
7513 | =for apidoc sv_pvbyten |
7514 | ||
7515 | A private implementation of the C<SvPVbyte> macro for compilers | |
7516 | which can't cope with complex macro expressions. Always use the macro | |
7517 | instead. | |
7518 | ||
7519 | =cut | |
7520 | */ | |
7521 | ||
7340a771 GS |
7522 | char * |
7523 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
7524 | { | |
ffebcc3e | 7525 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7526 | return sv_pvn(sv,lp); |
7527 | } | |
7528 | ||
645c22ef DM |
7529 | /* |
7530 | =for apidoc sv_pvbyten_force | |
7531 | ||
7532 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
7533 | which can't cope with complex macro expressions. Always use the macro | |
7534 | instead. | |
7535 | ||
7536 | =cut | |
7537 | */ | |
7538 | ||
7340a771 GS |
7539 | char * |
7540 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
7541 | { | |
b035a42e | 7542 | sv_pvn_force(sv,lp); |
ffebcc3e | 7543 | sv_utf8_downgrade(sv,0); |
b035a42e NC |
7544 | *lp = SvCUR(sv); |
7545 | return SvPVX(sv); | |
7340a771 GS |
7546 | } |
7547 | ||
d34f9d2e JH |
7548 | /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags(); |
7549 | * this function provided for binary compatibility only | |
7550 | */ | |
7551 | ||
7552 | char * | |
7553 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
7554 | { | |
7555 | sv_utf8_upgrade(sv); | |
7556 | return sv_pv(sv); | |
7557 | } | |
7558 | ||
645c22ef DM |
7559 | /* |
7560 | =for apidoc sv_pvutf8 | |
7561 | ||
baca2b92 | 7562 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 7563 | |
645c22ef DM |
7564 | =for apidoc sv_pvutf8n |
7565 | ||
7566 | A private implementation of the C<SvPVutf8> macro for compilers | |
7567 | which can't cope with complex macro expressions. Always use the macro | |
7568 | instead. | |
7569 | ||
7570 | =cut | |
7571 | */ | |
7572 | ||
7340a771 GS |
7573 | char * |
7574 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
7575 | { | |
560a288e | 7576 | sv_utf8_upgrade(sv); |
7340a771 GS |
7577 | return sv_pvn(sv,lp); |
7578 | } | |
7579 | ||
c461cf8f JH |
7580 | /* |
7581 | =for apidoc sv_pvutf8n_force | |
7582 | ||
645c22ef DM |
7583 | A private implementation of the C<SvPVutf8_force> macro for compilers |
7584 | which can't cope with complex macro expressions. Always use the macro | |
7585 | instead. | |
c461cf8f JH |
7586 | |
7587 | =cut | |
7588 | */ | |
7589 | ||
7340a771 GS |
7590 | char * |
7591 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
7592 | { | |
b035a42e | 7593 | sv_pvn_force(sv,lp); |
560a288e | 7594 | sv_utf8_upgrade(sv); |
b035a42e NC |
7595 | *lp = SvCUR(sv); |
7596 | return SvPVX(sv); | |
7340a771 GS |
7597 | } |
7598 | ||
c461cf8f JH |
7599 | /* |
7600 | =for apidoc sv_reftype | |
7601 | ||
7602 | Returns a string describing what the SV is a reference to. | |
7603 | ||
7604 | =cut | |
7605 | */ | |
7606 | ||
7340a771 | 7607 | char * |
864dbfa3 | 7608 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e | 7609 | { |
c86bf373 AMS |
7610 | if (ob && SvOBJECT(sv)) { |
7611 | HV *svs = SvSTASH(sv); | |
7612 | /* [20011101.072] This bandaid for C<package;> should eventually | |
7613 | be removed. AMS 20011103 */ | |
7614 | return (svs ? HvNAME(svs) : "<none>"); | |
7615 | } | |
a0d0e21e LW |
7616 | else { |
7617 | switch (SvTYPE(sv)) { | |
7618 | case SVt_NULL: | |
7619 | case SVt_IV: | |
7620 | case SVt_NV: | |
7621 | case SVt_RV: | |
7622 | case SVt_PV: | |
7623 | case SVt_PVIV: | |
7624 | case SVt_PVNV: | |
7625 | case SVt_PVMG: | |
7626 | case SVt_PVBM: | |
7627 | if (SvROK(sv)) | |
7628 | return "REF"; | |
7629 | else | |
7630 | return "SCALAR"; | |
ac388100 JH |
7631 | |
7632 | case SVt_PVLV: return SvROK(sv) ? "REF" | |
7633 | /* tied lvalues should appear to be | |
7634 | * scalars for backwards compatitbility */ | |
7635 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
7636 | ? "SCALAR" : "LVALUE"; | |
a0d0e21e LW |
7637 | case SVt_PVAV: return "ARRAY"; |
7638 | case SVt_PVHV: return "HASH"; | |
7639 | case SVt_PVCV: return "CODE"; | |
7640 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 7641 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 7642 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
7643 | default: return "UNKNOWN"; |
7644 | } | |
7645 | } | |
7646 | } | |
7647 | ||
954c1994 GS |
7648 | /* |
7649 | =for apidoc sv_isobject | |
7650 | ||
7651 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
7652 | object. If the SV is not an RV, or if the object is not blessed, then this | |
7653 | will return false. | |
7654 | ||
7655 | =cut | |
7656 | */ | |
7657 | ||
463ee0b2 | 7658 | int |
864dbfa3 | 7659 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 7660 | { |
68dc0745 | 7661 | if (!sv) |
7662 | return 0; | |
7663 | if (SvGMAGICAL(sv)) | |
7664 | mg_get(sv); | |
85e6fe83 LW |
7665 | if (!SvROK(sv)) |
7666 | return 0; | |
7667 | sv = (SV*)SvRV(sv); | |
7668 | if (!SvOBJECT(sv)) | |
7669 | return 0; | |
7670 | return 1; | |
7671 | } | |
7672 | ||
954c1994 GS |
7673 | /* |
7674 | =for apidoc sv_isa | |
7675 | ||
7676 | Returns a boolean indicating whether the SV is blessed into the specified | |
7677 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
7678 | an inheritance relationship. | |
7679 | ||
7680 | =cut | |
7681 | */ | |
7682 | ||
85e6fe83 | 7683 | int |
864dbfa3 | 7684 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 7685 | { |
68dc0745 | 7686 | if (!sv) |
7687 | return 0; | |
7688 | if (SvGMAGICAL(sv)) | |
7689 | mg_get(sv); | |
ed6116ce | 7690 | if (!SvROK(sv)) |
463ee0b2 | 7691 | return 0; |
ed6116ce LW |
7692 | sv = (SV*)SvRV(sv); |
7693 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
7694 | return 0; |
7695 | ||
7696 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
7697 | } | |
7698 | ||
954c1994 GS |
7699 | /* |
7700 | =for apidoc newSVrv | |
7701 | ||
7702 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
7703 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
7704 | be blessed in the specified package. The new SV is returned and its | |
7705 | reference count is 1. | |
7706 | ||
7707 | =cut | |
7708 | */ | |
7709 | ||
463ee0b2 | 7710 | SV* |
864dbfa3 | 7711 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 7712 | { |
463ee0b2 LW |
7713 | SV *sv; |
7714 | ||
4561caa4 | 7715 | new_SV(sv); |
51cf62d8 | 7716 | |
2213622d | 7717 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 7718 | SvAMAGIC_off(rv); |
51cf62d8 | 7719 | |
0199fce9 JD |
7720 | if (SvTYPE(rv) >= SVt_PVMG) { |
7721 | U32 refcnt = SvREFCNT(rv); | |
7722 | SvREFCNT(rv) = 0; | |
7723 | sv_clear(rv); | |
7724 | SvFLAGS(rv) = 0; | |
7725 | SvREFCNT(rv) = refcnt; | |
7726 | } | |
7727 | ||
51cf62d8 | 7728 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
7729 | sv_upgrade(rv, SVt_RV); |
7730 | else if (SvTYPE(rv) > SVt_RV) { | |
7731 | (void)SvOOK_off(rv); | |
7732 | if (SvPVX(rv) && SvLEN(rv)) | |
7733 | Safefree(SvPVX(rv)); | |
7734 | SvCUR_set(rv, 0); | |
7735 | SvLEN_set(rv, 0); | |
7736 | } | |
51cf62d8 OT |
7737 | |
7738 | (void)SvOK_off(rv); | |
053fc874 | 7739 | SvRV(rv) = sv; |
ed6116ce | 7740 | SvROK_on(rv); |
463ee0b2 | 7741 | |
a0d0e21e LW |
7742 | if (classname) { |
7743 | HV* stash = gv_stashpv(classname, TRUE); | |
7744 | (void)sv_bless(rv, stash); | |
7745 | } | |
7746 | return sv; | |
7747 | } | |
7748 | ||
954c1994 GS |
7749 | /* |
7750 | =for apidoc sv_setref_pv | |
7751 | ||
7752 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
7753 | argument will be upgraded to an RV. That RV will be modified to point to | |
7754 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
7755 | into the SV. The C<classname> argument indicates the package for the | |
7756 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7757 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7758 | |
7759 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
7760 | objects will become corrupted by the pointer copy process. | |
7761 | ||
7762 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
7763 | ||
7764 | =cut | |
7765 | */ | |
7766 | ||
a0d0e21e | 7767 | SV* |
864dbfa3 | 7768 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 7769 | { |
189b2af5 | 7770 | if (!pv) { |
3280af22 | 7771 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
7772 | SvSETMAGIC(rv); |
7773 | } | |
a0d0e21e | 7774 | else |
56431972 | 7775 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
7776 | return rv; |
7777 | } | |
7778 | ||
954c1994 GS |
7779 | /* |
7780 | =for apidoc sv_setref_iv | |
7781 | ||
7782 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
7783 | argument will be upgraded to an RV. That RV will be modified to point to | |
7784 | the new SV. The C<classname> argument indicates the package for the | |
7785 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7786 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7787 | |
7788 | =cut | |
7789 | */ | |
7790 | ||
a0d0e21e | 7791 | SV* |
864dbfa3 | 7792 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
7793 | { |
7794 | sv_setiv(newSVrv(rv,classname), iv); | |
7795 | return rv; | |
7796 | } | |
7797 | ||
954c1994 | 7798 | /* |
e1c57cef JH |
7799 | =for apidoc sv_setref_uv |
7800 | ||
7801 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
7802 | argument will be upgraded to an RV. That RV will be modified to point to | |
7803 | the new SV. The C<classname> argument indicates the package for the | |
7804 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7805 | will have a reference count of 1, and the RV will be returned. |
e1c57cef JH |
7806 | |
7807 | =cut | |
7808 | */ | |
7809 | ||
7810 | SV* | |
7811 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
7812 | { | |
7813 | sv_setuv(newSVrv(rv,classname), uv); | |
7814 | return rv; | |
7815 | } | |
7816 | ||
7817 | /* | |
954c1994 GS |
7818 | =for apidoc sv_setref_nv |
7819 | ||
7820 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
7821 | argument will be upgraded to an RV. That RV will be modified to point to | |
7822 | the new SV. The C<classname> argument indicates the package for the | |
7823 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
89e79dea | 7824 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
7825 | |
7826 | =cut | |
7827 | */ | |
7828 | ||
a0d0e21e | 7829 | SV* |
65202027 | 7830 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
7831 | { |
7832 | sv_setnv(newSVrv(rv,classname), nv); | |
7833 | return rv; | |
7834 | } | |
463ee0b2 | 7835 | |
954c1994 GS |
7836 | /* |
7837 | =for apidoc sv_setref_pvn | |
7838 | ||
7839 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
7840 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
7841 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
7842 | argument indicates the package for the blessing. Set C<classname> to | |
89e79dea JH |
7843 | C<Nullch> to avoid the blessing. The new SV will have a reference count |
7844 | of 1, and the RV will be returned. | |
954c1994 GS |
7845 | |
7846 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
7847 | ||
7848 | =cut | |
7849 | */ | |
7850 | ||
a0d0e21e | 7851 | SV* |
864dbfa3 | 7852 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
7853 | { |
7854 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
7855 | return rv; |
7856 | } | |
7857 | ||
954c1994 GS |
7858 | /* |
7859 | =for apidoc sv_bless | |
7860 | ||
7861 | Blesses an SV into a specified package. The SV must be an RV. The package | |
7862 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
7863 | of the SV is unaffected. | |
7864 | ||
7865 | =cut | |
7866 | */ | |
7867 | ||
a0d0e21e | 7868 | SV* |
864dbfa3 | 7869 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 7870 | { |
76e3520e | 7871 | SV *tmpRef; |
a0d0e21e | 7872 | if (!SvROK(sv)) |
cea2e8a9 | 7873 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
7874 | tmpRef = SvRV(sv); |
7875 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
7876 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 7877 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
7878 | if (SvOBJECT(tmpRef)) { |
7879 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7880 | --PL_sv_objcount; |
76e3520e | 7881 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 7882 | } |
a0d0e21e | 7883 | } |
76e3520e GS |
7884 | SvOBJECT_on(tmpRef); |
7885 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 7886 | ++PL_sv_objcount; |
76e3520e GS |
7887 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
7888 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 7889 | |
2e3febc6 CS |
7890 | if (Gv_AMG(stash)) |
7891 | SvAMAGIC_on(sv); | |
7892 | else | |
7893 | SvAMAGIC_off(sv); | |
a0d0e21e | 7894 | |
1edbfb88 AB |
7895 | if(SvSMAGICAL(tmpRef)) |
7896 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
7897 | mg_set(tmpRef); | |
7898 | ||
7899 | ||
ecdeb87c | 7900 | |
a0d0e21e LW |
7901 | return sv; |
7902 | } | |
7903 | ||
645c22ef | 7904 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
7905 | */ |
7906 | ||
76e3520e | 7907 | STATIC void |
cea2e8a9 | 7908 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 7909 | { |
850fabdf GS |
7910 | void *xpvmg; |
7911 | ||
a0d0e21e LW |
7912 | assert(SvTYPE(sv) == SVt_PVGV); |
7913 | SvFAKE_off(sv); | |
7914 | if (GvGP(sv)) | |
1edc1566 | 7915 | gp_free((GV*)sv); |
e826b3c7 GS |
7916 | if (GvSTASH(sv)) { |
7917 | SvREFCNT_dec(GvSTASH(sv)); | |
7918 | GvSTASH(sv) = Nullhv; | |
7919 | } | |
14befaf4 | 7920 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 7921 | Safefree(GvNAME(sv)); |
a5f75d66 | 7922 | GvMULTI_off(sv); |
850fabdf GS |
7923 | |
7924 | /* need to keep SvANY(sv) in the right arena */ | |
7925 | xpvmg = new_XPVMG(); | |
7926 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
7927 | del_XPVGV(SvANY(sv)); | |
7928 | SvANY(sv) = xpvmg; | |
7929 | ||
a0d0e21e LW |
7930 | SvFLAGS(sv) &= ~SVTYPEMASK; |
7931 | SvFLAGS(sv) |= SVt_PVMG; | |
7932 | } | |
7933 | ||
954c1994 | 7934 | /* |
840a7b70 | 7935 | =for apidoc sv_unref_flags |
954c1994 GS |
7936 | |
7937 | Unsets the RV status of the SV, and decrements the reference count of | |
7938 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
7939 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
7940 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
7941 | (otherwise the decrementing is conditional on the reference count being | |
7942 | different from one or the reference being a readonly SV). | |
7889fe52 | 7943 | See C<SvROK_off>. |
954c1994 GS |
7944 | |
7945 | =cut | |
7946 | */ | |
7947 | ||
ed6116ce | 7948 | void |
840a7b70 | 7949 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 7950 | { |
a0d0e21e | 7951 | SV* rv = SvRV(sv); |
810b8aa5 GS |
7952 | |
7953 | if (SvWEAKREF(sv)) { | |
7954 | sv_del_backref(sv); | |
7955 | SvWEAKREF_off(sv); | |
7956 | SvRV(sv) = 0; | |
7957 | return; | |
7958 | } | |
ed6116ce LW |
7959 | SvRV(sv) = 0; |
7960 | SvROK_off(sv); | |
5e8f8cda JH |
7961 | /* You can't have a || SvREADONLY(rv) here, as $a = $$a, where $a was |
7962 | assigned to as BEGIN {$a = \"Foo"} will fail. */ | |
7963 | if (SvREFCNT(rv) != 1 || (flags & SV_IMMEDIATE_UNREF)) | |
4633a7c4 | 7964 | SvREFCNT_dec(rv); |
840a7b70 | 7965 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 7966 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 7967 | } |
8990e307 | 7968 | |
840a7b70 IZ |
7969 | /* |
7970 | =for apidoc sv_unref | |
7971 | ||
7972 | Unsets the RV status of the SV, and decrements the reference count of | |
7973 | whatever was being referenced by the RV. This can almost be thought of | |
7974 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 7975 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
7976 | |
7977 | =cut | |
7978 | */ | |
7979 | ||
7980 | void | |
7981 | Perl_sv_unref(pTHX_ SV *sv) | |
7982 | { | |
7983 | sv_unref_flags(sv, 0); | |
7984 | } | |
7985 | ||
645c22ef DM |
7986 | /* |
7987 | =for apidoc sv_taint | |
7988 | ||
7989 | Taint an SV. Use C<SvTAINTED_on> instead. | |
7990 | =cut | |
7991 | */ | |
7992 | ||
bbce6d69 | 7993 | void |
864dbfa3 | 7994 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 7995 | { |
14befaf4 | 7996 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 7997 | } |
7998 | ||
645c22ef DM |
7999 | /* |
8000 | =for apidoc sv_untaint | |
8001 | ||
8002 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
8003 | =cut | |
8004 | */ | |
8005 | ||
bbce6d69 | 8006 | void |
864dbfa3 | 8007 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 8008 | { |
13f57bf8 | 8009 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 8010 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 8011 | if (mg) |
565764a8 | 8012 | mg->mg_len &= ~1; |
36477c24 | 8013 | } |
bbce6d69 | 8014 | } |
8015 | ||
645c22ef DM |
8016 | /* |
8017 | =for apidoc sv_tainted | |
8018 | ||
8019 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
8020 | =cut | |
8021 | */ | |
8022 | ||
bbce6d69 | 8023 | bool |
864dbfa3 | 8024 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 8025 | { |
13f57bf8 | 8026 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 8027 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 8028 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 8029 | return TRUE; |
8030 | } | |
8031 | return FALSE; | |
bbce6d69 | 8032 | } |
8033 | ||
d34f9d2e JH |
8034 | /* |
8035 | =for apidoc sv_setpviv | |
8036 | ||
8037 | Copies an integer into the given SV, also updating its string value. | |
8038 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
8039 | ||
8040 | =cut | |
8041 | */ | |
8042 | ||
8043 | void | |
8044 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) | |
8045 | { | |
8046 | char buf[TYPE_CHARS(UV)]; | |
8047 | char *ebuf; | |
8048 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
8049 | ||
8050 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8051 | } | |
8052 | ||
8053 | /* | |
8054 | =for apidoc sv_setpviv_mg | |
8055 | ||
8056 | Like C<sv_setpviv>, but also handles 'set' magic. | |
8057 | ||
8058 | =cut | |
8059 | */ | |
8060 | ||
8061 | void | |
8062 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) | |
8063 | { | |
8064 | char buf[TYPE_CHARS(UV)]; | |
8065 | char *ebuf; | |
8066 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
8067 | ||
8068 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8069 | SvSETMAGIC(sv); | |
8070 | } | |
8071 | ||
cea2e8a9 | 8072 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8073 | |
8074 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8075 | * version of the main function, (which may itself be aliased to us). | |
8076 | * Don't access this version directly. | |
8077 | */ | |
8078 | ||
cea2e8a9 GS |
8079 | void |
8080 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
8081 | { | |
8082 | dTHX; | |
8083 | va_list args; | |
8084 | va_start(args, pat); | |
c5be433b | 8085 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
8086 | va_end(args); |
8087 | } | |
8088 | ||
645c22ef DM |
8089 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8090 | * version of the main function, (which may itself be aliased to us). | |
8091 | * Don't access this version directly. | |
8092 | */ | |
cea2e8a9 GS |
8093 | |
8094 | void | |
8095 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8096 | { | |
8097 | dTHX; | |
8098 | va_list args; | |
8099 | va_start(args, pat); | |
c5be433b | 8100 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 8101 | va_end(args); |
cea2e8a9 GS |
8102 | } |
8103 | #endif | |
8104 | ||
954c1994 GS |
8105 | /* |
8106 | =for apidoc sv_setpvf | |
8107 | ||
8108 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
8109 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
8110 | ||
8111 | =cut | |
8112 | */ | |
8113 | ||
46fc3d4c | 8114 | void |
864dbfa3 | 8115 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8116 | { |
8117 | va_list args; | |
46fc3d4c | 8118 | va_start(args, pat); |
c5be433b | 8119 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 8120 | va_end(args); |
8121 | } | |
8122 | ||
645c22ef DM |
8123 | /* backend for C<sv_setpvf> and C<sv_setpvf_nocontext> */ |
8124 | ||
c5be433b GS |
8125 | void |
8126 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
8127 | { | |
8128 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8129 | } | |
ef50df4b | 8130 | |
954c1994 GS |
8131 | /* |
8132 | =for apidoc sv_setpvf_mg | |
8133 | ||
8134 | Like C<sv_setpvf>, but also handles 'set' magic. | |
8135 | ||
8136 | =cut | |
8137 | */ | |
8138 | ||
ef50df4b | 8139 | void |
864dbfa3 | 8140 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8141 | { |
8142 | va_list args; | |
ef50df4b | 8143 | va_start(args, pat); |
c5be433b | 8144 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 8145 | va_end(args); |
c5be433b GS |
8146 | } |
8147 | ||
645c22ef DM |
8148 | /* backend for C<sv_setpvf_mg> C<setpvf_mg_nocontext> */ |
8149 | ||
c5be433b GS |
8150 | void |
8151 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8152 | { | |
8153 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8154 | SvSETMAGIC(sv); |
8155 | } | |
8156 | ||
cea2e8a9 | 8157 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8158 | |
8159 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8160 | * version of the main function, (which may itself be aliased to us). | |
8161 | * Don't access this version directly. | |
8162 | */ | |
8163 | ||
cea2e8a9 GS |
8164 | void |
8165 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
8166 | { | |
8167 | dTHX; | |
8168 | va_list args; | |
8169 | va_start(args, pat); | |
c5be433b | 8170 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
8171 | va_end(args); |
8172 | } | |
8173 | ||
645c22ef DM |
8174 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8175 | * version of the main function, (which may itself be aliased to us). | |
8176 | * Don't access this version directly. | |
8177 | */ | |
8178 | ||
cea2e8a9 GS |
8179 | void |
8180 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8181 | { | |
8182 | dTHX; | |
8183 | va_list args; | |
8184 | va_start(args, pat); | |
c5be433b | 8185 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 8186 | va_end(args); |
cea2e8a9 GS |
8187 | } |
8188 | #endif | |
8189 | ||
954c1994 GS |
8190 | /* |
8191 | =for apidoc sv_catpvf | |
8192 | ||
d5ce4a7c GA |
8193 | Processes its arguments like C<sprintf> and appends the formatted |
8194 | output to an SV. If the appended data contains "wide" characters | |
8195 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
8196 | and characters >255 formatted with %c), the original SV might get | |
8197 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. | |
8198 | C<SvSETMAGIC()> must typically be called after calling this function | |
8199 | to handle 'set' magic. | |
954c1994 | 8200 | |
d5ce4a7c | 8201 | =cut */ |
954c1994 | 8202 | |
46fc3d4c | 8203 | void |
864dbfa3 | 8204 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8205 | { |
8206 | va_list args; | |
46fc3d4c | 8207 | va_start(args, pat); |
c5be433b | 8208 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 8209 | va_end(args); |
8210 | } | |
8211 | ||
645c22ef DM |
8212 | /* backend for C<sv_catpvf> and C<catpvf_mg_nocontext> */ |
8213 | ||
ef50df4b | 8214 | void |
c5be433b GS |
8215 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
8216 | { | |
8217 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8218 | } | |
8219 | ||
954c1994 GS |
8220 | /* |
8221 | =for apidoc sv_catpvf_mg | |
8222 | ||
8223 | Like C<sv_catpvf>, but also handles 'set' magic. | |
8224 | ||
8225 | =cut | |
8226 | */ | |
8227 | ||
c5be433b | 8228 | void |
864dbfa3 | 8229 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8230 | { |
8231 | va_list args; | |
ef50df4b | 8232 | va_start(args, pat); |
c5be433b | 8233 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 8234 | va_end(args); |
c5be433b GS |
8235 | } |
8236 | ||
645c22ef DM |
8237 | /* backend for C<catpvf_mg> and C<catpvf_mg_nocontext> */ |
8238 | ||
c5be433b GS |
8239 | void |
8240 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8241 | { | |
8242 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8243 | SvSETMAGIC(sv); |
8244 | } | |
8245 | ||
954c1994 GS |
8246 | /* |
8247 | =for apidoc sv_vsetpvfn | |
8248 | ||
8249 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
8250 | appending it. | |
8251 | ||
645c22ef DM |
8252 | Usually used via one of its frontends C<sv_setpvf> and C<sv_setpvf_mg>. |
8253 | ||
954c1994 GS |
8254 | =cut |
8255 | */ | |
8256 | ||
46fc3d4c | 8257 | void |
7d5ea4e7 | 8258 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8259 | { |
8260 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 8261 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 8262 | } |
8263 | ||
645c22ef DM |
8264 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
8265 | ||
2d00ba3b | 8266 | STATIC I32 |
9dd79c3f | 8267 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
8268 | { |
8269 | I32 var = 0; | |
8270 | switch (**pattern) { | |
8271 | case '1': case '2': case '3': | |
8272 | case '4': case '5': case '6': | |
8273 | case '7': case '8': case '9': | |
8274 | while (isDIGIT(**pattern)) | |
8275 | var = var * 10 + (*(*pattern)++ - '0'); | |
8276 | } | |
8277 | return var; | |
8278 | } | |
9dd79c3f | 8279 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 8280 | |
48703b5e NC |
8281 | static char * |
8282 | F0convert(NV nv, char *endbuf, STRLEN *len) | |
8283 | { | |
8284 | int neg = nv < 0; | |
8285 | UV uv; | |
8286 | char *p = endbuf; | |
8287 | ||
8288 | if (neg) | |
8289 | nv = -nv; | |
8290 | if (nv < UV_MAX) { | |
8291 | nv += 0.5; | |
1ed1e641 | 8292 | uv = (UV)nv; |
48703b5e NC |
8293 | if (uv & 1 && uv == nv) |
8294 | uv--; /* Round to even */ | |
8295 | do { | |
8296 | unsigned dig = uv % 10; | |
8297 | *--p = '0' + dig; | |
8298 | } while (uv /= 10); | |
8299 | if (neg) | |
8300 | *--p = '-'; | |
8301 | *len = endbuf - p; | |
8302 | return p; | |
8303 | } | |
8304 | return Nullch; | |
8305 | } | |
8306 | ||
8307 | ||
954c1994 GS |
8308 | /* |
8309 | =for apidoc sv_vcatpvfn | |
8310 | ||
8311 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8312 | to an SV. Uses an array of SVs if the C style variable argument list is | |
8313 | missing (NULL). When running with taint checks enabled, indicates via | |
8314 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
8315 | locales). | |
8316 | ||
645c22ef DM |
8317 | Usually used via one of its frontends C<sv_catpvf> and C<sv_catpvf_mg>. |
8318 | ||
954c1994 GS |
8319 | =cut |
8320 | */ | |
8321 | ||
46fc3d4c | 8322 | void |
7d5ea4e7 | 8323 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8324 | { |
8325 | char *p; | |
8326 | char *q; | |
8327 | char *patend; | |
fc36a67e | 8328 | STRLEN origlen; |
46fc3d4c | 8329 | I32 svix = 0; |
c635e13b | 8330 | static char nullstr[] = "(null)"; |
9c5ffd7c | 8331 | SV *argsv = Nullsv; |
5835a535 JH |
8332 | bool has_utf8; /* has the result utf8? */ |
8333 | bool pat_utf8; /* the pattern is in utf8? */ | |
8334 | SV *nsv = Nullsv; | |
48703b5e NC |
8335 | /* Times 4: a decimal digit takes more than 3 binary digits. |
8336 | * NV_DIG: mantissa takes than many decimal digits. | |
8337 | * Plus 32: Playing safe. */ | |
8338 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
8339 | /* large enough for "%#.#f" --chip */ | |
8340 | /* what about long double NVs? --jhi */ | |
5835a535 JH |
8341 | |
8342 | has_utf8 = pat_utf8 = DO_UTF8(sv); | |
46fc3d4c | 8343 | |
8344 | /* no matter what, this is a string now */ | |
fc36a67e | 8345 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 8346 | |
fc36a67e | 8347 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 8348 | if (patlen == 0) |
8349 | return; | |
fc36a67e | 8350 | if (patlen == 2 && pat[0] == '%') { |
8351 | switch (pat[1]) { | |
8352 | case 's': | |
c635e13b | 8353 | if (args) { |
8354 | char *s = va_arg(*args, char*); | |
8355 | sv_catpv(sv, s ? s : nullstr); | |
8356 | } | |
7e2040f0 | 8357 | else if (svix < svmax) { |
fc36a67e | 8358 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
8359 | if (DO_UTF8(*svargs)) |
8360 | SvUTF8_on(sv); | |
8361 | } | |
fc36a67e | 8362 | return; |
8363 | case '_': | |
8364 | if (args) { | |
7e2040f0 GS |
8365 | argsv = va_arg(*args, SV*); |
8366 | sv_catsv(sv, argsv); | |
8367 | if (DO_UTF8(argsv)) | |
8368 | SvUTF8_on(sv); | |
fc36a67e | 8369 | return; |
8370 | } | |
8371 | /* See comment on '_' below */ | |
8372 | break; | |
8373 | } | |
46fc3d4c | 8374 | } |
8375 | ||
1621ce87 | 8376 | #ifndef USE_LONG_DOUBLE |
48703b5e NC |
8377 | /* special-case "%.<number>[gf]" */ |
8378 | if ( patlen <= 5 && pat[0] == '%' && pat[1] == '.' | |
8379 | && (pat[patlen-1] == 'g' || pat[patlen-1] == 'f') ) { | |
8380 | unsigned digits = 0; | |
8381 | const char *pp; | |
8382 | ||
8383 | pp = pat + 2; | |
8384 | while (*pp >= '0' && *pp <= '9') | |
8385 | digits = 10 * digits + (*pp++ - '0'); | |
1ed1e641 | 8386 | if (pp - pat == (int)patlen - 1) { |
48703b5e NC |
8387 | NV nv; |
8388 | ||
8389 | if (args) | |
8390 | nv = (NV)va_arg(*args, double); | |
8391 | else if (svix < svmax) | |
8392 | nv = SvNV(*svargs); | |
8393 | else | |
8394 | return; | |
8395 | if (*pp == 'g') { | |
5f658b8d NC |
8396 | /* Add check for digits != 0 because it seems that some |
8397 | gconverts are buggy in this case, and we don't yet have | |
8398 | a Configure test for this. */ | |
8399 | if (digits && digits < sizeof(ebuf) - NV_DIG - 10) { | |
8400 | /* 0, point, slack */ | |
1621ce87 | 8401 | Gconvert(nv, (int)digits, 0, ebuf); |
48703b5e NC |
8402 | sv_catpv(sv, ebuf); |
8403 | if (*ebuf) /* May return an empty string for digits==0 */ | |
8404 | return; | |
8405 | } | |
8406 | } else if (!digits) { | |
8407 | STRLEN l; | |
8408 | ||
8409 | if ((p = F0convert(nv, ebuf + sizeof ebuf, &l))) { | |
8410 | sv_catpvn(sv, p, l); | |
8411 | return; | |
8412 | } | |
8413 | } | |
8414 | } | |
8415 | } | |
1621ce87 | 8416 | #endif /* !USE_LONG_DOUBLE */ |
48703b5e | 8417 | |
2cf2cfc6 | 8418 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
5b7ea690 | 8419 | has_utf8 = TRUE; |
2cf2cfc6 | 8420 | |
46fc3d4c | 8421 | patend = (char*)pat + patlen; |
8422 | for (p = (char*)pat; p < patend; p = q) { | |
8423 | bool alt = FALSE; | |
8424 | bool left = FALSE; | |
b22c7a20 | 8425 | bool vectorize = FALSE; |
211dfcf1 | 8426 | bool vectorarg = FALSE; |
2cf2cfc6 | 8427 | bool vec_utf8 = FALSE; |
46fc3d4c | 8428 | char fill = ' '; |
8429 | char plus = 0; | |
8430 | char intsize = 0; | |
8431 | STRLEN width = 0; | |
fc36a67e | 8432 | STRLEN zeros = 0; |
46fc3d4c | 8433 | bool has_precis = FALSE; |
8434 | STRLEN precis = 0; | |
d34f9d2e | 8435 | I32 osvix = svix; |
2cf2cfc6 | 8436 | bool is_utf8 = FALSE; /* is this item utf8? */ |
5b7ea690 JH |
8437 | #ifdef HAS_LDBL_SPRINTF_BUG |
8438 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
8439 | with sfio - Allen <allens@cpan.org> */ | |
8440 | bool fix_ldbl_sprintf_bug = FALSE; | |
8441 | #endif | |
8442 | ||
46fc3d4c | 8443 | char esignbuf[4]; |
ad391ad9 | 8444 | U8 utf8buf[UTF8_MAXLEN+1]; |
46fc3d4c | 8445 | STRLEN esignlen = 0; |
8446 | ||
8447 | char *eptr = Nullch; | |
fc36a67e | 8448 | STRLEN elen = 0; |
81f715da | 8449 | SV *vecsv = Nullsv; |
a05b299f | 8450 | U8 *vecstr = Null(U8*); |
b22c7a20 | 8451 | STRLEN veclen = 0; |
934abaf1 | 8452 | char c = 0; |
46fc3d4c | 8453 | int i; |
9c5ffd7c | 8454 | unsigned base = 0; |
8c8eb53c RB |
8455 | IV iv = 0; |
8456 | UV uv = 0; | |
9e5b023a JH |
8457 | /* we need a long double target in case HAS_LONG_DOUBLE but |
8458 | not USE_LONG_DOUBLE | |
8459 | */ | |
35fff930 | 8460 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
8461 | long double nv; |
8462 | #else | |
65202027 | 8463 | NV nv; |
9e5b023a | 8464 | #endif |
46fc3d4c | 8465 | STRLEN have; |
8466 | STRLEN need; | |
8467 | STRLEN gap; | |
b22c7a20 GS |
8468 | char *dotstr = "."; |
8469 | STRLEN dotstrlen = 1; | |
211dfcf1 | 8470 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 8471 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
8472 | I32 epix = 0; /* explicit precision index */ |
8473 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 8474 | bool asterisk = FALSE; |
46fc3d4c | 8475 | |
211dfcf1 | 8476 | /* echo everything up to the next format specification */ |
46fc3d4c | 8477 | for (q = p; q < patend && *q != '%'; ++q) ; |
8478 | if (q > p) { | |
5835a535 JH |
8479 | if (has_utf8 && !pat_utf8) |
8480 | sv_catpvn_utf8_upgrade(sv, p, q - p, nsv); | |
8481 | else | |
8482 | sv_catpvn(sv, p, q - p); | |
46fc3d4c | 8483 | p = q; |
8484 | } | |
8485 | if (q++ >= patend) | |
8486 | break; | |
8487 | ||
211dfcf1 HS |
8488 | /* |
8489 | We allow format specification elements in this order: | |
8490 | \d+\$ explicit format parameter index | |
8491 | [-+ 0#]+ flags | |
a472f209 | 8492 | v|\*(\d+\$)?v vector with optional (optionally specified) arg |
f8cf5370 | 8493 | 0 flag (as above): repeated to allow "v02" |
211dfcf1 HS |
8494 | \d+|\*(\d+\$)? width using optional (optionally specified) arg |
8495 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
8496 | [hlqLV] size | |
8497 | [%bcdefginopsux_DFOUX] format (mandatory) | |
8498 | */ | |
8499 | if (EXPECT_NUMBER(q, width)) { | |
8500 | if (*q == '$') { | |
8501 | ++q; | |
8502 | efix = width; | |
8503 | } else { | |
8504 | goto gotwidth; | |
8505 | } | |
8506 | } | |
8507 | ||
fc36a67e | 8508 | /* FLAGS */ |
8509 | ||
46fc3d4c | 8510 | while (*q) { |
8511 | switch (*q) { | |
8512 | case ' ': | |
8513 | case '+': | |
8514 | plus = *q++; | |
8515 | continue; | |
8516 | ||
8517 | case '-': | |
8518 | left = TRUE; | |
8519 | q++; | |
8520 | continue; | |
8521 | ||
8522 | case '0': | |
8523 | fill = *q++; | |
8524 | continue; | |
8525 | ||
8526 | case '#': | |
8527 | alt = TRUE; | |
8528 | q++; | |
8529 | continue; | |
8530 | ||
fc36a67e | 8531 | default: |
8532 | break; | |
8533 | } | |
8534 | break; | |
8535 | } | |
46fc3d4c | 8536 | |
211dfcf1 | 8537 | tryasterisk: |
eb3fce90 | 8538 | if (*q == '*') { |
211dfcf1 HS |
8539 | q++; |
8540 | if (EXPECT_NUMBER(q, ewix)) | |
8541 | if (*q++ != '$') | |
8542 | goto unknown; | |
eb3fce90 | 8543 | asterisk = TRUE; |
211dfcf1 HS |
8544 | } |
8545 | if (*q == 'v') { | |
eb3fce90 | 8546 | q++; |
211dfcf1 HS |
8547 | if (vectorize) |
8548 | goto unknown; | |
9cbac4c7 | 8549 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
8550 | evix = ewix; |
8551 | ewix = 0; | |
8552 | asterisk = FALSE; | |
8553 | } | |
8554 | vectorize = TRUE; | |
8555 | goto tryasterisk; | |
eb3fce90 JH |
8556 | } |
8557 | ||
211dfcf1 | 8558 | if (!asterisk) |
f8cf5370 JH |
8559 | if( *q == '0' ) |
8560 | fill = *q++; | |
211dfcf1 HS |
8561 | EXPECT_NUMBER(q, width); |
8562 | ||
8563 | if (vectorize) { | |
8564 | if (vectorarg) { | |
8565 | if (args) | |
8566 | vecsv = va_arg(*args, SV*); | |
8567 | else | |
8568 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
219ef941 | 8569 | svargs[evix ? evix-1 : svix++] : &PL_sv_undef; |
4459522c | 8570 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 | 8571 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 8572 | is_utf8 = TRUE; |
211dfcf1 HS |
8573 | } |
8574 | if (args) { | |
8575 | vecsv = va_arg(*args, SV*); | |
8576 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8577 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 8578 | } |
211dfcf1 HS |
8579 | else if (efix ? efix <= svmax : svix < svmax) { |
8580 | vecsv = svargs[efix ? efix-1 : svix++]; | |
8581 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 8582 | vec_utf8 = DO_UTF8(vecsv); |
211dfcf1 HS |
8583 | } |
8584 | else { | |
8585 | vecstr = (U8*)""; | |
8586 | veclen = 0; | |
8587 | } | |
eb3fce90 | 8588 | } |
fc36a67e | 8589 | |
eb3fce90 | 8590 | if (asterisk) { |
fc36a67e | 8591 | if (args) |
8592 | i = va_arg(*args, int); | |
8593 | else | |
eb3fce90 JH |
8594 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
8595 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8596 | left |= (i < 0); |
8597 | width = (i < 0) ? -i : i; | |
fc36a67e | 8598 | } |
211dfcf1 | 8599 | gotwidth: |
fc36a67e | 8600 | |
8601 | /* PRECISION */ | |
46fc3d4c | 8602 | |
fc36a67e | 8603 | if (*q == '.') { |
8604 | q++; | |
8605 | if (*q == '*') { | |
211dfcf1 | 8606 | q++; |
7b8dd722 HS |
8607 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') |
8608 | goto unknown; | |
8609 | /* XXX: todo, support specified precision parameter */ | |
8610 | if (epix) | |
211dfcf1 | 8611 | goto unknown; |
46fc3d4c | 8612 | if (args) |
8613 | i = va_arg(*args, int); | |
8614 | else | |
eb3fce90 JH |
8615 | i = (ewix ? ewix <= svmax : svix < svmax) |
8616 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 8617 | precis = (i < 0) ? 0 : i; |
fc36a67e | 8618 | } |
8619 | else { | |
8620 | precis = 0; | |
8621 | while (isDIGIT(*q)) | |
8622 | precis = precis * 10 + (*q++ - '0'); | |
8623 | } | |
8624 | has_precis = TRUE; | |
8625 | } | |
46fc3d4c | 8626 | |
fc36a67e | 8627 | /* SIZE */ |
46fc3d4c | 8628 | |
fc36a67e | 8629 | switch (*q) { |
c623ac67 GS |
8630 | #ifdef WIN32 |
8631 | case 'I': /* Ix, I32x, and I64x */ | |
8632 | # ifdef WIN64 | |
8633 | if (q[1] == '6' && q[2] == '4') { | |
8634 | q += 3; | |
8635 | intsize = 'q'; | |
8636 | break; | |
8637 | } | |
8638 | # endif | |
8639 | if (q[1] == '3' && q[2] == '2') { | |
8640 | q += 3; | |
8641 | break; | |
8642 | } | |
8643 | # ifdef WIN64 | |
8644 | intsize = 'q'; | |
8645 | # endif | |
8646 | q++; | |
8647 | break; | |
8648 | #endif | |
9e5b023a | 8649 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 8650 | case 'L': /* Ld */ |
e5c81feb | 8651 | /* FALL THROUGH */ |
e5c81feb | 8652 | #ifdef HAS_QUAD |
6f9bb7fd | 8653 | case 'q': /* qd */ |
9e5b023a | 8654 | #endif |
6f9bb7fd GS |
8655 | intsize = 'q'; |
8656 | q++; | |
8657 | break; | |
8658 | #endif | |
fc36a67e | 8659 | case 'l': |
9e5b023a | 8660 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
5b7ea690 | 8661 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 8662 | intsize = 'q'; |
8663 | q += 2; | |
46fc3d4c | 8664 | break; |
cf2093f6 | 8665 | } |
fc36a67e | 8666 | #endif |
6f9bb7fd | 8667 | /* FALL THROUGH */ |
fc36a67e | 8668 | case 'h': |
cf2093f6 | 8669 | /* FALL THROUGH */ |
fc36a67e | 8670 | case 'V': |
8671 | intsize = *q++; | |
46fc3d4c | 8672 | break; |
8673 | } | |
8674 | ||
fc36a67e | 8675 | /* CONVERSION */ |
8676 | ||
211dfcf1 HS |
8677 | if (*q == '%') { |
8678 | eptr = q++; | |
8679 | elen = 1; | |
8680 | goto string; | |
8681 | } | |
8682 | ||
be75b157 HS |
8683 | if (vectorize) |
8684 | argsv = vecsv; | |
8685 | else if (!args) | |
211dfcf1 HS |
8686 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
8687 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
8688 | ||
46fc3d4c | 8689 | switch (c = *q++) { |
8690 | ||
8691 | /* STRINGS */ | |
8692 | ||
46fc3d4c | 8693 | case 'c': |
be75b157 | 8694 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
8695 | if ((uv > 255 || |
8696 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 8697 | && !IN_BYTES) { |
dfe13c55 | 8698 | eptr = (char*)utf8buf; |
9041c2e3 | 8699 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 8700 | is_utf8 = TRUE; |
7e2040f0 GS |
8701 | } |
8702 | else { | |
8703 | c = (char)uv; | |
8704 | eptr = &c; | |
8705 | elen = 1; | |
a0ed51b3 | 8706 | } |
46fc3d4c | 8707 | goto string; |
8708 | ||
46fc3d4c | 8709 | case 's': |
be75b157 | 8710 | if (args && !vectorize) { |
fc36a67e | 8711 | eptr = va_arg(*args, char*); |
c635e13b | 8712 | if (eptr) |
1d7c1841 GS |
8713 | #ifdef MACOS_TRADITIONAL |
8714 | /* On MacOS, %#s format is used for Pascal strings */ | |
8715 | if (alt) | |
8716 | elen = *eptr++; | |
8717 | else | |
8718 | #endif | |
c635e13b | 8719 | elen = strlen(eptr); |
8720 | else { | |
8721 | eptr = nullstr; | |
8722 | elen = sizeof nullstr - 1; | |
8723 | } | |
46fc3d4c | 8724 | } |
211dfcf1 | 8725 | else { |
7e2040f0 GS |
8726 | eptr = SvPVx(argsv, elen); |
8727 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
8728 | if (has_precis && precis < elen) { |
8729 | I32 p = precis; | |
7e2040f0 | 8730 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
8731 | precis = p; |
8732 | } | |
8733 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 8734 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 8735 | } |
2cf2cfc6 | 8736 | is_utf8 = TRUE; |
a0ed51b3 LW |
8737 | } |
8738 | } | |
46fc3d4c | 8739 | goto string; |
8740 | ||
fc36a67e | 8741 | case '_': |
8742 | /* | |
8743 | * The "%_" hack might have to be changed someday, | |
8744 | * if ISO or ANSI decide to use '_' for something. | |
8745 | * So we keep it hidden from users' code. | |
8746 | */ | |
be75b157 | 8747 | if (!args || vectorize) |
fc36a67e | 8748 | goto unknown; |
211dfcf1 | 8749 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
8750 | eptr = SvPVx(argsv, elen); |
8751 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 8752 | is_utf8 = TRUE; |
fc36a67e | 8753 | |
46fc3d4c | 8754 | string: |
b22c7a20 | 8755 | vectorize = FALSE; |
46fc3d4c | 8756 | if (has_precis && elen > precis) |
8757 | elen = precis; | |
8758 | break; | |
8759 | ||
8760 | /* INTEGERS */ | |
8761 | ||
fc36a67e | 8762 | case 'p': |
be75b157 | 8763 | if (alt || vectorize) |
c2e66d9e | 8764 | goto unknown; |
211dfcf1 | 8765 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 8766 | base = 16; |
8767 | goto integer; | |
8768 | ||
46fc3d4c | 8769 | case 'D': |
29fe7a80 | 8770 | #ifdef IV_IS_QUAD |
22f3ae8c | 8771 | intsize = 'q'; |
29fe7a80 | 8772 | #else |
46fc3d4c | 8773 | intsize = 'l'; |
29fe7a80 | 8774 | #endif |
46fc3d4c | 8775 | /* FALL THROUGH */ |
8776 | case 'd': | |
8777 | case 'i': | |
b22c7a20 | 8778 | if (vectorize) { |
ba210ebe | 8779 | STRLEN ulen; |
211dfcf1 HS |
8780 | if (!veclen) |
8781 | continue; | |
2cf2cfc6 A |
8782 | if (vec_utf8) |
8783 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8784 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8785 | else { |
e83d50c9 | 8786 | uv = *vecstr; |
b22c7a20 GS |
8787 | ulen = 1; |
8788 | } | |
8789 | vecstr += ulen; | |
8790 | veclen -= ulen; | |
e83d50c9 JP |
8791 | if (plus) |
8792 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
8793 | } |
8794 | else if (args) { | |
46fc3d4c | 8795 | switch (intsize) { |
8796 | case 'h': iv = (short)va_arg(*args, int); break; | |
46fc3d4c | 8797 | case 'l': iv = va_arg(*args, long); break; |
fc36a67e | 8798 | case 'V': iv = va_arg(*args, IV); break; |
1ed1e641 | 8799 | default: iv = va_arg(*args, int); break; |
cf2093f6 JH |
8800 | #ifdef HAS_QUAD |
8801 | case 'q': iv = va_arg(*args, Quad_t); break; | |
8802 | #endif | |
46fc3d4c | 8803 | } |
8804 | } | |
8805 | else { | |
1ed1e641 | 8806 | IV tiv = SvIVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 8807 | switch (intsize) { |
1ed1e641 MHM |
8808 | case 'h': iv = (short)tiv; break; |
8809 | case 'l': iv = (long)tiv; break; | |
8810 | case 'V': | |
8811 | default: iv = tiv; break; | |
cf2093f6 | 8812 | #ifdef HAS_QUAD |
1ed1e641 | 8813 | case 'q': iv = (Quad_t)tiv; break; |
cf2093f6 | 8814 | #endif |
46fc3d4c | 8815 | } |
8816 | } | |
e83d50c9 JP |
8817 | if ( !vectorize ) /* we already set uv above */ |
8818 | { | |
8819 | if (iv >= 0) { | |
8820 | uv = iv; | |
8821 | if (plus) | |
8822 | esignbuf[esignlen++] = plus; | |
8823 | } | |
8824 | else { | |
8825 | uv = -iv; | |
8826 | esignbuf[esignlen++] = '-'; | |
8827 | } | |
46fc3d4c | 8828 | } |
8829 | base = 10; | |
8830 | goto integer; | |
8831 | ||
fc36a67e | 8832 | case 'U': |
29fe7a80 | 8833 | #ifdef IV_IS_QUAD |
22f3ae8c | 8834 | intsize = 'q'; |
29fe7a80 | 8835 | #else |
fc36a67e | 8836 | intsize = 'l'; |
29fe7a80 | 8837 | #endif |
fc36a67e | 8838 | /* FALL THROUGH */ |
8839 | case 'u': | |
8840 | base = 10; | |
8841 | goto uns_integer; | |
8842 | ||
4f19785b WSI |
8843 | case 'b': |
8844 | base = 2; | |
8845 | goto uns_integer; | |
8846 | ||
46fc3d4c | 8847 | case 'O': |
29fe7a80 | 8848 | #ifdef IV_IS_QUAD |
22f3ae8c | 8849 | intsize = 'q'; |
29fe7a80 | 8850 | #else |
46fc3d4c | 8851 | intsize = 'l'; |
29fe7a80 | 8852 | #endif |
46fc3d4c | 8853 | /* FALL THROUGH */ |
8854 | case 'o': | |
8855 | base = 8; | |
8856 | goto uns_integer; | |
8857 | ||
8858 | case 'X': | |
46fc3d4c | 8859 | case 'x': |
8860 | base = 16; | |
46fc3d4c | 8861 | |
8862 | uns_integer: | |
b22c7a20 | 8863 | if (vectorize) { |
ba210ebe | 8864 | STRLEN ulen; |
b22c7a20 | 8865 | vector: |
211dfcf1 HS |
8866 | if (!veclen) |
8867 | continue; | |
2cf2cfc6 A |
8868 | if (vec_utf8) |
8869 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
8870 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 8871 | else { |
a05b299f | 8872 | uv = *vecstr; |
b22c7a20 GS |
8873 | ulen = 1; |
8874 | } | |
8875 | vecstr += ulen; | |
8876 | veclen -= ulen; | |
8877 | } | |
8878 | else if (args) { | |
46fc3d4c | 8879 | switch (intsize) { |
8880 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
46fc3d4c | 8881 | case 'l': uv = va_arg(*args, unsigned long); break; |
fc36a67e | 8882 | case 'V': uv = va_arg(*args, UV); break; |
1ed1e641 | 8883 | default: uv = va_arg(*args, unsigned); break; |
cf2093f6 | 8884 | #ifdef HAS_QUAD |
1ed1e641 | 8885 | case 'q': uv = va_arg(*args, Uquad_t); break; |
cf2093f6 | 8886 | #endif |
46fc3d4c | 8887 | } |
8888 | } | |
8889 | else { | |
1ed1e641 | 8890 | UV tuv = SvUVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 8891 | switch (intsize) { |
1ed1e641 MHM |
8892 | case 'h': uv = (unsigned short)tuv; break; |
8893 | case 'l': uv = (unsigned long)tuv; break; | |
8894 | case 'V': | |
8895 | default: uv = tuv; break; | |
cf2093f6 | 8896 | #ifdef HAS_QUAD |
1ed1e641 | 8897 | case 'q': uv = (Uquad_t)tuv; break; |
cf2093f6 | 8898 | #endif |
46fc3d4c | 8899 | } |
8900 | } | |
8901 | ||
8902 | integer: | |
46fc3d4c | 8903 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 8904 | switch (base) { |
8905 | unsigned dig; | |
8906 | case 16: | |
c10ed8b9 HS |
8907 | if (!uv) |
8908 | alt = FALSE; | |
1d7c1841 GS |
8909 | p = (char*)((c == 'X') |
8910 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 8911 | do { |
8912 | dig = uv & 15; | |
8913 | *--eptr = p[dig]; | |
8914 | } while (uv >>= 4); | |
8915 | if (alt) { | |
46fc3d4c | 8916 | esignbuf[esignlen++] = '0'; |
fc36a67e | 8917 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 8918 | } |
fc36a67e | 8919 | break; |
8920 | case 8: | |
8921 | do { | |
8922 | dig = uv & 7; | |
8923 | *--eptr = '0' + dig; | |
8924 | } while (uv >>= 3); | |
8925 | if (alt && *eptr != '0') | |
8926 | *--eptr = '0'; | |
8927 | break; | |
4f19785b WSI |
8928 | case 2: |
8929 | do { | |
8930 | dig = uv & 1; | |
8931 | *--eptr = '0' + dig; | |
8932 | } while (uv >>= 1); | |
eda88b6d JH |
8933 | if (alt) { |
8934 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 8935 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 8936 | } |
4f19785b | 8937 | break; |
fc36a67e | 8938 | default: /* it had better be ten or less */ |
6bc102ca | 8939 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 8940 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
8941 | STRLEN n; |
8942 | char *s = SvPV(sv,n); | |
8943 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
8944 | && (n == 2 || !isDIGIT(s[n-3]))) | |
8945 | { | |
9014280d | 8946 | Perl_warner(aTHX_ packWARN(WARN_Y2K), |
6bc102ca GS |
8947 | "Possible Y2K bug: %%%c %s", |
8948 | c, "format string following '19'"); | |
8949 | } | |
8950 | } | |
8951 | #endif | |
fc36a67e | 8952 | do { |
8953 | dig = uv % base; | |
8954 | *--eptr = '0' + dig; | |
8955 | } while (uv /= base); | |
8956 | break; | |
46fc3d4c | 8957 | } |
8958 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
8959 | if (has_precis) { |
8960 | if (precis > elen) | |
8961 | zeros = precis - elen; | |
8962 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
8963 | elen = 0; | |
8964 | } | |
46fc3d4c | 8965 | break; |
8966 | ||
8967 | /* FLOATING POINT */ | |
8968 | ||
fc36a67e | 8969 | case 'F': |
8970 | c = 'f'; /* maybe %F isn't supported here */ | |
8971 | /* FALL THROUGH */ | |
46fc3d4c | 8972 | case 'e': case 'E': |
fc36a67e | 8973 | case 'f': |
46fc3d4c | 8974 | case 'g': case 'G': |
8975 | ||
8976 | /* This is evil, but floating point is even more evil */ | |
8977 | ||
9e5b023a JH |
8978 | /* for SV-style calling, we can only get NV |
8979 | for C-style calling, we assume %f is double; | |
8980 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
8981 | */ | |
8982 | switch (intsize) { | |
8983 | case 'V': | |
8984 | #if defined(USE_LONG_DOUBLE) | |
8985 | intsize = 'q'; | |
8986 | #endif | |
8987 | break; | |
f8cf5370 JH |
8988 | /* [perl #20339] - we should accept and ignore %lf rather than die */ |
8989 | case 'l': | |
8990 | /* FALL THROUGH */ | |
9e5b023a JH |
8991 | default: |
8992 | #if defined(USE_LONG_DOUBLE) | |
8993 | intsize = args ? 0 : 'q'; | |
8994 | #endif | |
8995 | break; | |
8996 | case 'q': | |
8997 | #if defined(HAS_LONG_DOUBLE) | |
8998 | break; | |
8999 | #else | |
9000 | /* FALL THROUGH */ | |
9001 | #endif | |
9002 | case 'h': | |
9e5b023a JH |
9003 | goto unknown; |
9004 | } | |
9005 | ||
9006 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 9007 | nv = (args && !vectorize) ? |
35fff930 JH |
9008 | #if LONG_DOUBLESIZE > DOUBLESIZE |
9009 | intsize == 'q' ? | |
5b7ea690 JH |
9010 | va_arg(*args, long double) : |
9011 | va_arg(*args, double) | |
35fff930 | 9012 | #else |
5b7ea690 | 9013 | va_arg(*args, double) |
35fff930 | 9014 | #endif |
9e5b023a | 9015 | : SvNVx(argsv); |
fc36a67e | 9016 | |
9017 | need = 0; | |
be75b157 | 9018 | vectorize = FALSE; |
fc36a67e | 9019 | if (c != 'e' && c != 'E') { |
9020 | i = PERL_INT_MIN; | |
9e5b023a JH |
9021 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
9022 | will cast our (long double) to (double) */ | |
73b309ea | 9023 | (void)Perl_frexp(nv, &i); |
fc36a67e | 9024 | if (i == PERL_INT_MIN) |
cea2e8a9 | 9025 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 9026 | if (i > 0) |
fc36a67e | 9027 | need = BIT_DIGITS(i); |
9028 | } | |
9029 | need += has_precis ? precis : 6; /* known default */ | |
5b7ea690 | 9030 | |
fc36a67e | 9031 | if (need < width) |
9032 | need = width; | |
9033 | ||
5b7ea690 JH |
9034 | #ifdef HAS_LDBL_SPRINTF_BUG |
9035 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
9036 | with sfio - Allen <allens@cpan.org> */ | |
9037 | ||
9038 | # ifdef DBL_MAX | |
9039 | # define MY_DBL_MAX DBL_MAX | |
9040 | # else /* XXX guessing! HUGE_VAL may be defined as infinity, so not using */ | |
9041 | # if DOUBLESIZE >= 8 | |
9042 | # define MY_DBL_MAX 1.7976931348623157E+308L | |
9043 | # else | |
9044 | # define MY_DBL_MAX 3.40282347E+38L | |
9045 | # endif | |
9046 | # endif | |
9047 | ||
9048 | # ifdef HAS_LDBL_SPRINTF_BUG_LESS1 /* only between -1L & 1L - Allen */ | |
9049 | # define MY_DBL_MAX_BUG 1L | |
9050 | # else | |
9051 | # define MY_DBL_MAX_BUG MY_DBL_MAX | |
9052 | # endif | |
9053 | ||
9054 | # ifdef DBL_MIN | |
9055 | # define MY_DBL_MIN DBL_MIN | |
9056 | # else /* XXX guessing! -Allen */ | |
9057 | # if DOUBLESIZE >= 8 | |
9058 | # define MY_DBL_MIN 2.2250738585072014E-308L | |
9059 | # else | |
9060 | # define MY_DBL_MIN 1.17549435E-38L | |
9061 | # endif | |
9062 | # endif | |
9063 | ||
9064 | if ((intsize == 'q') && (c == 'f') && | |
9065 | ((nv < MY_DBL_MAX_BUG) && (nv > -MY_DBL_MAX_BUG)) && | |
9066 | (need < DBL_DIG)) { | |
9067 | /* it's going to be short enough that | |
9068 | * long double precision is not needed */ | |
9069 | ||
9070 | if ((nv <= 0L) && (nv >= -0L)) | |
9071 | fix_ldbl_sprintf_bug = TRUE; /* 0 is 0 - easiest */ | |
9072 | else { | |
9073 | /* would use Perl_fp_class as a double-check but not | |
9074 | * functional on IRIX - see perl.h comments */ | |
9075 | ||
9076 | if ((nv >= MY_DBL_MIN) || (nv <= -MY_DBL_MIN)) { | |
9077 | /* It's within the range that a double can represent */ | |
9078 | #if defined(DBL_MAX) && !defined(DBL_MIN) | |
9079 | if ((nv >= ((long double)1/DBL_MAX)) || | |
9080 | (nv <= (-(long double)1/DBL_MAX))) | |
9081 | #endif | |
9082 | fix_ldbl_sprintf_bug = TRUE; | |
9083 | } | |
9084 | } | |
9085 | if (fix_ldbl_sprintf_bug == TRUE) { | |
9086 | double temp; | |
9087 | ||
9088 | intsize = 0; | |
9089 | temp = (double)nv; | |
9090 | nv = (NV)temp; | |
9091 | } | |
9092 | } | |
9093 | ||
9094 | # undef MY_DBL_MAX | |
9095 | # undef MY_DBL_MAX_BUG | |
9096 | # undef MY_DBL_MIN | |
9097 | ||
9098 | #endif /* HAS_LDBL_SPRINTF_BUG */ | |
9099 | ||
46fc3d4c | 9100 | need += 20; /* fudge factor */ |
80252599 GS |
9101 | if (PL_efloatsize < need) { |
9102 | Safefree(PL_efloatbuf); | |
9103 | PL_efloatsize = need + 20; /* more fudge */ | |
9104 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 9105 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 9106 | } |
9107 | ||
48703b5e NC |
9108 | if ( !(width || left || plus || alt) && fill != '0' |
9109 | && has_precis && intsize != 'q' ) { /* Shortcuts */ | |
5f658b8d NC |
9110 | /* See earlier comment about buggy Gconvert when digits, |
9111 | aka precis is 0 */ | |
9112 | if ( c == 'g' && precis) { | |
1621ce87 | 9113 | Gconvert((NV)nv, (int)precis, 0, PL_efloatbuf); |
48703b5e NC |
9114 | if (*PL_efloatbuf) /* May return an empty string for digits==0 */ |
9115 | goto float_converted; | |
9116 | } else if ( c == 'f' && !precis) { | |
9117 | if ((eptr = F0convert(nv, ebuf + sizeof ebuf, &elen))) | |
9118 | break; | |
9119 | } | |
9120 | } | |
46fc3d4c | 9121 | eptr = ebuf + sizeof ebuf; |
9122 | *--eptr = '\0'; | |
9123 | *--eptr = c; | |
9e5b023a JH |
9124 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ |
9125 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) | |
9126 | if (intsize == 'q') { | |
e5c81feb JH |
9127 | /* Copy the one or more characters in a long double |
9128 | * format before the 'base' ([efgEFG]) character to | |
9129 | * the format string. */ | |
9130 | static char const prifldbl[] = PERL_PRIfldbl; | |
9131 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
9132 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 9133 | } |
65202027 | 9134 | #endif |
46fc3d4c | 9135 | if (has_precis) { |
9136 | base = precis; | |
9137 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
9138 | *--eptr = '.'; | |
9139 | } | |
9140 | if (width) { | |
9141 | base = width; | |
9142 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
9143 | } | |
9144 | if (fill == '0') | |
9145 | *--eptr = fill; | |
84902520 TB |
9146 | if (left) |
9147 | *--eptr = '-'; | |
46fc3d4c | 9148 | if (plus) |
9149 | *--eptr = plus; | |
9150 | if (alt) | |
9151 | *--eptr = '#'; | |
9152 | *--eptr = '%'; | |
9153 | ||
ff9121f8 JH |
9154 | /* No taint. Otherwise we are in the strange situation |
9155 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 9156 | * --jhi */ |
9e5b023a JH |
9157 | #if defined(HAS_LONG_DOUBLE) |
9158 | if (intsize == 'q') | |
9159 | (void)sprintf(PL_efloatbuf, eptr, nv); | |
9160 | else | |
9161 | (void)sprintf(PL_efloatbuf, eptr, (double)nv); | |
9162 | #else | |
dd8482fc | 9163 | (void)sprintf(PL_efloatbuf, eptr, nv); |
9e5b023a | 9164 | #endif |
48703b5e | 9165 | float_converted: |
80252599 GS |
9166 | eptr = PL_efloatbuf; |
9167 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 9168 | break; |
9169 | ||
fc36a67e | 9170 | /* SPECIAL */ |
9171 | ||
9172 | case 'n': | |
9173 | i = SvCUR(sv) - origlen; | |
be75b157 | 9174 | if (args && !vectorize) { |
c635e13b | 9175 | switch (intsize) { |
9176 | case 'h': *(va_arg(*args, short*)) = i; break; | |
9177 | default: *(va_arg(*args, int*)) = i; break; | |
9178 | case 'l': *(va_arg(*args, long*)) = i; break; | |
9179 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
9180 | #ifdef HAS_QUAD |
9181 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
9182 | #endif | |
c635e13b | 9183 | } |
fc36a67e | 9184 | } |
9dd79c3f | 9185 | else |
211dfcf1 | 9186 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 9187 | vectorize = FALSE; |
fc36a67e | 9188 | continue; /* not "break" */ |
9189 | ||
9190 | /* UNKNOWN */ | |
9191 | ||
46fc3d4c | 9192 | default: |
fc36a67e | 9193 | unknown: |
599cee73 | 9194 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 9195 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 9196 | SV *msg = sv_newmortal(); |
c293eb2b NC |
9197 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %sprintf: ", |
9198 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
0f4b6630 | 9199 | if (c) { |
0f4b6630 | 9200 | if (isPRINT(c)) |
1c846c1f | 9201 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
9202 | "\"%%%c\"", c & 0xFF); |
9203 | else | |
9204 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 9205 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 9206 | (UV)c & 0xFF); |
0f4b6630 | 9207 | } else |
c635e13b | 9208 | sv_catpv(msg, "end of string"); |
9014280d | 9209 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 9210 | } |
fb73857a | 9211 | |
9212 | /* output mangled stuff ... */ | |
9213 | if (c == '\0') | |
9214 | --q; | |
46fc3d4c | 9215 | eptr = p; |
9216 | elen = q - p; | |
fb73857a | 9217 | |
9218 | /* ... right here, because formatting flags should not apply */ | |
9219 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9220 | p = SvEND(sv); | |
4459522c | 9221 | Copy(eptr, p, elen, char); |
fb73857a | 9222 | p += elen; |
9223 | *p = '\0'; | |
9224 | SvCUR(sv) = p - SvPVX(sv); | |
d34f9d2e | 9225 | svix = osvix; |
fb73857a | 9226 | continue; /* not "break" */ |
46fc3d4c | 9227 | } |
9228 | ||
29359924 HS |
9229 | /* calculate width before utf8_upgrade changes it */ |
9230 | have = esignlen + zeros + elen; | |
9231 | ||
d2876be5 JH |
9232 | if (is_utf8 != has_utf8) { |
9233 | if (is_utf8) { | |
9234 | if (SvCUR(sv)) | |
9235 | sv_utf8_upgrade(sv); | |
9236 | } | |
9237 | else { | |
9238 | SV *nsv = sv_2mortal(newSVpvn(eptr, elen)); | |
9239 | sv_utf8_upgrade(nsv); | |
9240 | eptr = SvPVX(nsv); | |
9241 | elen = SvCUR(nsv); | |
9242 | } | |
9243 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9244 | p = SvEND(sv); | |
9245 | *p = '\0'; | |
9246 | } | |
18729d3e JH |
9247 | /* Use memchr() instead of strchr(), as eptr is not guaranteed */ |
9248 | /* to point to a null-terminated string. */ | |
9249 | if (left && ckWARN(WARN_PRINTF) && memchr(eptr, '\n', elen) && | |
67bae6b3 JH |
9250 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) |
9251 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), | |
9252 | "Newline in left-justified string for %sprintf", | |
9253 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
d2876be5 | 9254 | |
46fc3d4c | 9255 | need = (have > width ? have : width); |
9256 | gap = need - have; | |
9257 | ||
b22c7a20 | 9258 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 9259 | p = SvEND(sv); |
9260 | if (esignlen && fill == '0') { | |
eb160463 | 9261 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9262 | *p++ = esignbuf[i]; |
9263 | } | |
9264 | if (gap && !left) { | |
9265 | memset(p, fill, gap); | |
9266 | p += gap; | |
9267 | } | |
9268 | if (esignlen && fill != '0') { | |
eb160463 | 9269 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9270 | *p++ = esignbuf[i]; |
9271 | } | |
fc36a67e | 9272 | if (zeros) { |
9273 | for (i = zeros; i; i--) | |
9274 | *p++ = '0'; | |
9275 | } | |
46fc3d4c | 9276 | if (elen) { |
4459522c | 9277 | Copy(eptr, p, elen, char); |
46fc3d4c | 9278 | p += elen; |
9279 | } | |
9280 | if (gap && left) { | |
9281 | memset(p, ' ', gap); | |
9282 | p += gap; | |
9283 | } | |
b22c7a20 GS |
9284 | if (vectorize) { |
9285 | if (veclen) { | |
4459522c | 9286 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
9287 | p += dotstrlen; |
9288 | } | |
9289 | else | |
9290 | vectorize = FALSE; /* done iterating over vecstr */ | |
9291 | } | |
2cf2cfc6 A |
9292 | if (is_utf8) |
9293 | has_utf8 = TRUE; | |
9294 | if (has_utf8) | |
7e2040f0 | 9295 | SvUTF8_on(sv); |
46fc3d4c | 9296 | *p = '\0'; |
9297 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
9298 | if (vectorize) { |
9299 | esignlen = 0; | |
9300 | goto vector; | |
9301 | } | |
46fc3d4c | 9302 | } |
9303 | } | |
51371543 | 9304 | |
645c22ef DM |
9305 | /* ========================================================================= |
9306 | ||
9307 | =head1 Cloning an interpreter | |
9308 | ||
9309 | All the macros and functions in this section are for the private use of | |
9310 | the main function, perl_clone(). | |
9311 | ||
9312 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
9313 | During the course of a cloning, a hash table is used to map old addresses | |
9314 | to new addresses. The table is created and manipulated with the | |
9315 | ptr_table_* functions. | |
9316 | ||
9317 | =cut | |
9318 | ||
9319 | ============================================================================*/ | |
9320 | ||
9321 | ||
1d7c1841 GS |
9322 | #if defined(USE_ITHREADS) |
9323 | ||
4d1ff10f AB |
9324 | #if defined(USE_5005THREADS) |
9325 | # include "error: USE_5005THREADS and USE_ITHREADS are incompatible" | |
1d7c1841 GS |
9326 | #endif |
9327 | ||
1d7c1841 GS |
9328 | #ifndef GpREFCNT_inc |
9329 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
9330 | #endif | |
9331 | ||
9332 | ||
d2d73c3e AB |
9333 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
9334 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
9335 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9336 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
9337 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9338 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
9339 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9340 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
9341 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9342 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
9343 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
9344 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
9345 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 9346 | |
d2d73c3e | 9347 | |
d2f185dc AMS |
9348 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
9349 | regcomp.c. AMS 20010712 */ | |
645c22ef | 9350 | |
1d7c1841 | 9351 | REGEXP * |
a8fc9800 | 9352 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 9353 | { |
d2f185dc AMS |
9354 | REGEXP *ret; |
9355 | int i, len, npar; | |
9356 | struct reg_substr_datum *s; | |
9357 | ||
9358 | if (!r) | |
9359 | return (REGEXP *)NULL; | |
9360 | ||
9361 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
9362 | return ret; | |
9363 | ||
9364 | len = r->offsets[0]; | |
9365 | npar = r->nparens+1; | |
9366 | ||
9367 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
9368 | Copy(r->program, ret->program, len+1, regnode); | |
9369 | ||
9370 | New(0, ret->startp, npar, I32); | |
9371 | Copy(r->startp, ret->startp, npar, I32); | |
9372 | New(0, ret->endp, npar, I32); | |
9373 | Copy(r->startp, ret->startp, npar, I32); | |
9374 | ||
d2f185dc AMS |
9375 | New(0, ret->substrs, 1, struct reg_substr_data); |
9376 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
9377 | s->min_offset = r->substrs->data[i].min_offset; | |
9378 | s->max_offset = r->substrs->data[i].max_offset; | |
9379 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 9380 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
9381 | } |
9382 | ||
70612e96 | 9383 | ret->regstclass = NULL; |
d2f185dc AMS |
9384 | if (r->data) { |
9385 | struct reg_data *d; | |
9386 | int count = r->data->count; | |
9387 | ||
9388 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
9389 | char, struct reg_data); | |
9390 | New(0, d->what, count, U8); | |
9391 | ||
9392 | d->count = count; | |
9393 | for (i = 0; i < count; i++) { | |
9394 | d->what[i] = r->data->what[i]; | |
9395 | switch (d->what[i]) { | |
9396 | case 's': | |
9397 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
9398 | break; | |
9399 | case 'p': | |
9400 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
9401 | break; | |
9402 | case 'f': | |
9403 | /* This is cheating. */ | |
9404 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
9405 | StructCopy(r->data->data[i], d->data[i], | |
9406 | struct regnode_charclass_class); | |
70612e96 | 9407 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
9408 | break; |
9409 | case 'o': | |
33773810 AMS |
9410 | /* Compiled op trees are readonly, and can thus be |
9411 | shared without duplication. */ | |
9b978d73 DM |
9412 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
9413 | break; | |
d2f185dc AMS |
9414 | case 'n': |
9415 | d->data[i] = r->data->data[i]; | |
9416 | break; | |
9417 | } | |
9418 | } | |
9419 | ||
9420 | ret->data = d; | |
9421 | } | |
9422 | else | |
9423 | ret->data = NULL; | |
9424 | ||
9425 | New(0, ret->offsets, 2*len+1, U32); | |
9426 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
9427 | ||
65b7047c | 9428 | ret->precomp = SAVEPVN(r->precomp, r->prelen); |
d2f185dc AMS |
9429 | ret->refcnt = r->refcnt; |
9430 | ret->minlen = r->minlen; | |
9431 | ret->prelen = r->prelen; | |
9432 | ret->nparens = r->nparens; | |
9433 | ret->lastparen = r->lastparen; | |
9434 | ret->lastcloseparen = r->lastcloseparen; | |
9435 | ret->reganch = r->reganch; | |
9436 | ||
70612e96 RG |
9437 | ret->sublen = r->sublen; |
9438 | ||
9439 | if (RX_MATCH_COPIED(ret)) | |
65b7047c | 9440 | ret->subbeg = SAVEPVN(r->subbeg, r->sublen); |
70612e96 RG |
9441 | else |
9442 | ret->subbeg = Nullch; | |
9443 | ||
d2f185dc AMS |
9444 | ptr_table_store(PL_ptr_table, r, ret); |
9445 | return ret; | |
1d7c1841 GS |
9446 | } |
9447 | ||
d2d73c3e | 9448 | /* duplicate a file handle */ |
645c22ef | 9449 | |
1d7c1841 | 9450 | PerlIO * |
a8fc9800 | 9451 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
9452 | { |
9453 | PerlIO *ret; | |
9454 | if (!fp) | |
9455 | return (PerlIO*)NULL; | |
9456 | ||
9457 | /* look for it in the table first */ | |
9458 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
9459 | if (ret) | |
9460 | return ret; | |
9461 | ||
9462 | /* create anew and remember what it is */ | |
ecdeb87c | 9463 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
9464 | ptr_table_store(PL_ptr_table, fp, ret); |
9465 | return ret; | |
9466 | } | |
9467 | ||
645c22ef DM |
9468 | /* duplicate a directory handle */ |
9469 | ||
1d7c1841 GS |
9470 | DIR * |
9471 | Perl_dirp_dup(pTHX_ DIR *dp) | |
9472 | { | |
9473 | if (!dp) | |
9474 | return (DIR*)NULL; | |
9475 | /* XXX TODO */ | |
9476 | return dp; | |
9477 | } | |
9478 | ||
ff276b08 | 9479 | /* duplicate a typeglob */ |
645c22ef | 9480 | |
1d7c1841 | 9481 | GP * |
a8fc9800 | 9482 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
9483 | { |
9484 | GP *ret; | |
9485 | if (!gp) | |
9486 | return (GP*)NULL; | |
9487 | /* look for it in the table first */ | |
9488 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
9489 | if (ret) | |
9490 | return ret; | |
9491 | ||
9492 | /* create anew and remember what it is */ | |
9493 | Newz(0, ret, 1, GP); | |
9494 | ptr_table_store(PL_ptr_table, gp, ret); | |
9495 | ||
9496 | /* clone */ | |
9497 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
9498 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
9499 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
9500 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
9501 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
9502 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
9503 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
9504 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
9505 | ret->gp_cvgen = gp->gp_cvgen; |
9506 | ret->gp_flags = gp->gp_flags; | |
9507 | ret->gp_line = gp->gp_line; | |
9508 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
9509 | return ret; | |
9510 | } | |
9511 | ||
645c22ef DM |
9512 | /* duplicate a chain of magic */ |
9513 | ||
1d7c1841 | 9514 | MAGIC * |
a8fc9800 | 9515 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 9516 | { |
cb359b41 JH |
9517 | MAGIC *mgprev = (MAGIC*)NULL; |
9518 | MAGIC *mgret; | |
1d7c1841 GS |
9519 | if (!mg) |
9520 | return (MAGIC*)NULL; | |
9521 | /* look for it in the table first */ | |
9522 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
9523 | if (mgret) | |
9524 | return mgret; | |
9525 | ||
9526 | for (; mg; mg = mg->mg_moremagic) { | |
9527 | MAGIC *nmg; | |
9528 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 9529 | if (mgprev) |
1d7c1841 | 9530 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
9531 | else |
9532 | mgret = nmg; | |
1d7c1841 GS |
9533 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
9534 | nmg->mg_private = mg->mg_private; | |
9535 | nmg->mg_type = mg->mg_type; | |
9536 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 9537 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 9538 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 9539 | } |
05bd4103 | 9540 | else if(mg->mg_type == PERL_MAGIC_backref) { |
f504ecf4 NC |
9541 | AV *av = (AV*) mg->mg_obj; |
9542 | SV **svp; | |
9543 | I32 i; | |
9544 | nmg->mg_obj = (SV*)newAV(); | |
9545 | svp = AvARRAY(av); | |
9546 | i = AvFILLp(av); | |
9547 | while (i >= 0) { | |
9548 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); | |
9549 | i--; | |
9550 | } | |
05bd4103 | 9551 | } |
1d7c1841 GS |
9552 | else { |
9553 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
9554 | ? sv_dup_inc(mg->mg_obj, param) |
9555 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
9556 | } |
9557 | nmg->mg_len = mg->mg_len; | |
9558 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 9559 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 9560 | if (mg->mg_len > 0) { |
1d7c1841 | 9561 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
9562 | if (mg->mg_type == PERL_MAGIC_overload_table && |
9563 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
9564 | { | |
1d7c1841 GS |
9565 | AMT *amtp = (AMT*)mg->mg_ptr; |
9566 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
9567 | I32 i; | |
9568 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 9569 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
9570 | } |
9571 | } | |
9572 | } | |
9573 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 9574 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 9575 | } |
68795e93 NIS |
9576 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
9577 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
9578 | } | |
1d7c1841 GS |
9579 | mgprev = nmg; |
9580 | } | |
9581 | return mgret; | |
9582 | } | |
9583 | ||
645c22ef DM |
9584 | /* create a new pointer-mapping table */ |
9585 | ||
1d7c1841 GS |
9586 | PTR_TBL_t * |
9587 | Perl_ptr_table_new(pTHX) | |
9588 | { | |
9589 | PTR_TBL_t *tbl; | |
9590 | Newz(0, tbl, 1, PTR_TBL_t); | |
9591 | tbl->tbl_max = 511; | |
9592 | tbl->tbl_items = 0; | |
9593 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
9594 | return tbl; | |
9595 | } | |
9596 | ||
df34f778 NC |
9597 | #if (PTRSIZE == 8) |
9598 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 3) | |
9599 | #else | |
9600 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 2) | |
9601 | #endif | |
9602 | ||
645c22ef DM |
9603 | /* map an existing pointer using a table */ |
9604 | ||
1d7c1841 GS |
9605 | void * |
9606 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
9607 | { | |
9608 | PTR_TBL_ENT_t *tblent; | |
df34f778 | 9609 | UV hash = PTR_TABLE_HASH(sv); |
1d7c1841 GS |
9610 | assert(tbl); |
9611 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
9612 | for (; tblent; tblent = tblent->next) { | |
9613 | if (tblent->oldval == sv) | |
9614 | return tblent->newval; | |
9615 | } | |
9616 | return (void*)NULL; | |
9617 | } | |
9618 | ||
645c22ef DM |
9619 | /* add a new entry to a pointer-mapping table */ |
9620 | ||
1d7c1841 GS |
9621 | void |
9622 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
9623 | { | |
9624 | PTR_TBL_ENT_t *tblent, **otblent; | |
9625 | /* XXX this may be pessimal on platforms where pointers aren't good | |
9626 | * hash values e.g. if they grow faster in the most significant | |
9627 | * bits */ | |
df34f778 NC |
9628 | UV hash = PTR_TABLE_HASH(oldv); |
9629 | bool empty = 1; | |
1d7c1841 GS |
9630 | |
9631 | assert(tbl); | |
9632 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
df34f778 | 9633 | for (tblent = *otblent; tblent; empty=0, tblent = tblent->next) { |
1d7c1841 GS |
9634 | if (tblent->oldval == oldv) { |
9635 | tblent->newval = newv; | |
1d7c1841 GS |
9636 | return; |
9637 | } | |
9638 | } | |
9639 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
9640 | tblent->oldval = oldv; | |
9641 | tblent->newval = newv; | |
9642 | tblent->next = *otblent; | |
9643 | *otblent = tblent; | |
9644 | tbl->tbl_items++; | |
df34f778 | 9645 | if (!empty && tbl->tbl_items > tbl->tbl_max) |
1d7c1841 GS |
9646 | ptr_table_split(tbl); |
9647 | } | |
9648 | ||
645c22ef DM |
9649 | /* double the hash bucket size of an existing ptr table */ |
9650 | ||
1d7c1841 GS |
9651 | void |
9652 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
9653 | { | |
9654 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
9655 | UV oldsize = tbl->tbl_max + 1; | |
9656 | UV newsize = oldsize * 2; | |
9657 | UV i; | |
9658 | ||
9659 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
9660 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
9661 | tbl->tbl_max = --newsize; | |
9662 | tbl->tbl_ary = ary; | |
9663 | for (i=0; i < oldsize; i++, ary++) { | |
9664 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
9665 | if (!*ary) | |
9666 | continue; | |
9667 | curentp = ary + oldsize; | |
9668 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
df34f778 | 9669 | if ((newsize & PTR_TABLE_HASH(ent->oldval)) != i) { |
1d7c1841 GS |
9670 | *entp = ent->next; |
9671 | ent->next = *curentp; | |
9672 | *curentp = ent; | |
9673 | continue; | |
9674 | } | |
9675 | else | |
9676 | entp = &ent->next; | |
9677 | } | |
9678 | } | |
9679 | } | |
9680 | ||
645c22ef DM |
9681 | /* remove all the entries from a ptr table */ |
9682 | ||
a0739874 DM |
9683 | void |
9684 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
9685 | { | |
9686 | register PTR_TBL_ENT_t **array; | |
9687 | register PTR_TBL_ENT_t *entry; | |
9688 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
9689 | UV riter = 0; | |
9690 | UV max; | |
9691 | ||
9692 | if (!tbl || !tbl->tbl_items) { | |
9693 | return; | |
9694 | } | |
9695 | ||
9696 | array = tbl->tbl_ary; | |
9697 | entry = array[0]; | |
9698 | max = tbl->tbl_max; | |
9699 | ||
9700 | for (;;) { | |
9701 | if (entry) { | |
9702 | oentry = entry; | |
9703 | entry = entry->next; | |
9704 | Safefree(oentry); | |
9705 | } | |
9706 | if (!entry) { | |
9707 | if (++riter > max) { | |
9708 | break; | |
9709 | } | |
9710 | entry = array[riter]; | |
9711 | } | |
9712 | } | |
9713 | ||
9714 | tbl->tbl_items = 0; | |
9715 | } | |
9716 | ||
645c22ef DM |
9717 | /* clear and free a ptr table */ |
9718 | ||
a0739874 DM |
9719 | void |
9720 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
9721 | { | |
9722 | if (!tbl) { | |
9723 | return; | |
9724 | } | |
9725 | ptr_table_clear(tbl); | |
9726 | Safefree(tbl->tbl_ary); | |
9727 | Safefree(tbl); | |
9728 | } | |
9729 | ||
1d7c1841 GS |
9730 | #ifdef DEBUGGING |
9731 | char *PL_watch_pvx; | |
9732 | #endif | |
9733 | ||
645c22ef DM |
9734 | /* attempt to make everything in the typeglob readonly */ |
9735 | ||
5bd07a3d | 9736 | STATIC SV * |
59b40662 | 9737 | S_gv_share(pTHX_ SV *sstr, CLONE_PARAMS *param) |
5bd07a3d DM |
9738 | { |
9739 | GV *gv = (GV*)sstr; | |
59b40662 | 9740 | SV *sv = ¶m->proto_perl->Isv_no; /* just need SvREADONLY-ness */ |
5bd07a3d DM |
9741 | |
9742 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 9743 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
9744 | } |
9745 | else if (!GvCV(gv)) { | |
9746 | GvCV(gv) = (CV*)sv; | |
9747 | } | |
9748 | else { | |
9749 | /* CvPADLISTs cannot be shared */ | |
37e20706 | 9750 | if (!SvREADONLY(GvCV(gv)) && !CvXSUB(GvCV(gv))) { |
7fb37951 | 9751 | GvUNIQUE_off(gv); |
5bd07a3d DM |
9752 | } |
9753 | } | |
9754 | ||
7fb37951 | 9755 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
9756 | #if 0 |
9757 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
9758 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
9759 | #endif | |
9760 | return Nullsv; | |
9761 | } | |
9762 | ||
4411f3b6 | 9763 | /* |
5bd07a3d DM |
9764 | * write attempts will die with |
9765 | * "Modification of a read-only value attempted" | |
9766 | */ | |
9767 | if (!GvSV(gv)) { | |
9768 | GvSV(gv) = sv; | |
9769 | } | |
9770 | else { | |
9771 | SvREADONLY_on(GvSV(gv)); | |
9772 | } | |
9773 | ||
9774 | if (!GvAV(gv)) { | |
9775 | GvAV(gv) = (AV*)sv; | |
9776 | } | |
9777 | else { | |
9778 | SvREADONLY_on(GvAV(gv)); | |
9779 | } | |
9780 | ||
9781 | if (!GvHV(gv)) { | |
9782 | GvHV(gv) = (HV*)sv; | |
9783 | } | |
9784 | else { | |
fea227c9 | 9785 | SvREADONLY_on(GvHV(gv)); |
5bd07a3d DM |
9786 | } |
9787 | ||
9788 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
9789 | } | |
9790 | ||
645c22ef DM |
9791 | /* duplicate an SV of any type (including AV, HV etc) */ |
9792 | ||
83841fad NIS |
9793 | void |
9794 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
9795 | { | |
9796 | if (SvROK(sstr)) { | |
9797 | SvRV(dstr) = SvWEAKREF(sstr) | |
9798 | ? sv_dup(SvRV(sstr), param) | |
9799 | : sv_dup_inc(SvRV(sstr), param); | |
9800 | } | |
9801 | else if (SvPVX(sstr)) { | |
9802 | /* Has something there */ | |
9803 | if (SvLEN(sstr)) { | |
68795e93 | 9804 | /* Normal PV - clone whole allocated space */ |
83841fad | 9805 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); |
68795e93 | 9806 | } |
83841fad NIS |
9807 | else { |
9808 | /* Special case - not normally malloced for some reason */ | |
9809 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
9810 | /* A "shared" PV - clone it as unshared string */ | |
3e5ba712 | 9811 | if(SvPADTMP(sstr)) { |
efb84706 JH |
9812 | /* However, some of them live in the pad |
9813 | and they should not have these flags | |
9814 | turned off */ | |
3e5ba712 JH |
9815 | |
9816 | SvPVX(dstr) = sharepvn(SvPVX(sstr), SvCUR(sstr), | |
9817 | SvUVX(sstr)); | |
9818 | SvUVX(dstr) = SvUVX(sstr); | |
9819 | } else { | |
9820 | ||
9821 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvCUR(sstr)); | |
9822 | SvFAKE_off(dstr); | |
9823 | SvREADONLY_off(dstr); | |
efb84706 | 9824 | } |
83841fad NIS |
9825 | } |
9826 | else { | |
9827 | /* Some other special case - random pointer */ | |
9828 | SvPVX(dstr) = SvPVX(sstr); | |
9829 | } | |
9830 | } | |
9831 | } | |
9832 | else { | |
9833 | /* Copy the Null */ | |
9834 | SvPVX(dstr) = SvPVX(sstr); | |
9835 | } | |
9836 | } | |
9837 | ||
1d7c1841 | 9838 | SV * |
a8fc9800 | 9839 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 9840 | { |
1d7c1841 GS |
9841 | SV *dstr; |
9842 | ||
9843 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
9844 | return Nullsv; | |
9845 | /* look for it in the table first */ | |
9846 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
9847 | if (dstr) | |
9848 | return dstr; | |
9849 | ||
457d3ae8 JH |
9850 | if(param->flags & CLONEf_JOIN_IN) { |
9851 | /** We are joining here so we don't want do clone | |
9852 | something that is bad **/ | |
9853 | ||
9854 | if(SvTYPE(sstr) == SVt_PVHV && | |
9855 | HvNAME(sstr)) { | |
9856 | /** don't clone stashes if they already exist **/ | |
9857 | HV* old_stash = gv_stashpv(HvNAME(sstr),0); | |
9858 | return (SV*) old_stash; | |
9859 | } | |
9860 | } | |
9861 | ||
1d7c1841 GS |
9862 | /* create anew and remember what it is */ |
9863 | new_SV(dstr); | |
9864 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
9865 | ||
9866 | /* clone */ | |
9867 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
9868 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
9869 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
9870 | ||
9871 | #ifdef DEBUGGING | |
9872 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
9873 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
9874 | PL_watch_pvx, SvPVX(sstr)); | |
9875 | #endif | |
9876 | ||
9877 | switch (SvTYPE(sstr)) { | |
9878 | case SVt_NULL: | |
9879 | SvANY(dstr) = NULL; | |
9880 | break; | |
9881 | case SVt_IV: | |
9882 | SvANY(dstr) = new_XIV(); | |
9883 | SvIVX(dstr) = SvIVX(sstr); | |
9884 | break; | |
9885 | case SVt_NV: | |
9886 | SvANY(dstr) = new_XNV(); | |
9887 | SvNVX(dstr) = SvNVX(sstr); | |
9888 | break; | |
9889 | case SVt_RV: | |
9890 | SvANY(dstr) = new_XRV(); | |
83841fad | 9891 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9892 | break; |
9893 | case SVt_PV: | |
9894 | SvANY(dstr) = new_XPV(); | |
9895 | SvCUR(dstr) = SvCUR(sstr); | |
9896 | SvLEN(dstr) = SvLEN(sstr); | |
83841fad | 9897 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9898 | break; |
9899 | case SVt_PVIV: | |
9900 | SvANY(dstr) = new_XPVIV(); | |
9901 | SvCUR(dstr) = SvCUR(sstr); | |
9902 | SvLEN(dstr) = SvLEN(sstr); | |
9903 | SvIVX(dstr) = SvIVX(sstr); | |
83841fad | 9904 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9905 | break; |
9906 | case SVt_PVNV: | |
9907 | SvANY(dstr) = new_XPVNV(); | |
9908 | SvCUR(dstr) = SvCUR(sstr); | |
9909 | SvLEN(dstr) = SvLEN(sstr); | |
9910 | SvIVX(dstr) = SvIVX(sstr); | |
9911 | SvNVX(dstr) = SvNVX(sstr); | |
83841fad | 9912 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9913 | break; |
9914 | case SVt_PVMG: | |
9915 | SvANY(dstr) = new_XPVMG(); | |
9916 | SvCUR(dstr) = SvCUR(sstr); | |
9917 | SvLEN(dstr) = SvLEN(sstr); | |
9918 | SvIVX(dstr) = SvIVX(sstr); | |
9919 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9920 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9921 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9922 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9923 | break; |
9924 | case SVt_PVBM: | |
9925 | SvANY(dstr) = new_XPVBM(); | |
9926 | SvCUR(dstr) = SvCUR(sstr); | |
9927 | SvLEN(dstr) = SvLEN(sstr); | |
9928 | SvIVX(dstr) = SvIVX(sstr); | |
9929 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9930 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9931 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9932 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9933 | BmRARE(dstr) = BmRARE(sstr); |
9934 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
9935 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
9936 | break; | |
9937 | case SVt_PVLV: | |
9938 | SvANY(dstr) = new_XPVLV(); | |
9939 | SvCUR(dstr) = SvCUR(sstr); | |
9940 | SvLEN(dstr) = SvLEN(sstr); | |
9941 | SvIVX(dstr) = SvIVX(sstr); | |
9942 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9943 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9944 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9945 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9946 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
9947 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
73c86719 JH |
9948 | if (LvTYPE(sstr) == 't') /* for tie: unrefcnted fake (SV**) */ |
9949 | LvTARG(dstr) = dstr; | |
9950 | else if (LvTYPE(sstr) == 'T') /* for tie: fake HE */ | |
9951 | LvTARG(dstr) = (SV*)he_dup((HE*)LvTARG(sstr), 0, param); | |
9952 | else | |
9953 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); | |
1d7c1841 GS |
9954 | LvTYPE(dstr) = LvTYPE(sstr); |
9955 | break; | |
9956 | case SVt_PVGV: | |
7fb37951 | 9957 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d | 9958 | SV *share; |
59b40662 | 9959 | if ((share = gv_share(sstr, param))) { |
5bd07a3d DM |
9960 | del_SV(dstr); |
9961 | dstr = share; | |
37e20706 | 9962 | ptr_table_store(PL_ptr_table, sstr, dstr); |
5bd07a3d DM |
9963 | #if 0 |
9964 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
9965 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
9966 | #endif | |
9967 | break; | |
9968 | } | |
9969 | } | |
1d7c1841 GS |
9970 | SvANY(dstr) = new_XPVGV(); |
9971 | SvCUR(dstr) = SvCUR(sstr); | |
9972 | SvLEN(dstr) = SvLEN(sstr); | |
9973 | SvIVX(dstr) = SvIVX(sstr); | |
9974 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9975 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9976 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9977 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
9978 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
9979 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 9980 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 9981 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 9982 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
9983 | (void)GpREFCNT_inc(GvGP(dstr)); |
9984 | break; | |
9985 | case SVt_PVIO: | |
9986 | SvANY(dstr) = new_XPVIO(); | |
9987 | SvCUR(dstr) = SvCUR(sstr); | |
9988 | SvLEN(dstr) = SvLEN(sstr); | |
9989 | SvIVX(dstr) = SvIVX(sstr); | |
9990 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
9991 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
9992 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 9993 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 9994 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9995 | if (IoOFP(sstr) == IoIFP(sstr)) |
9996 | IoOFP(dstr) = IoIFP(dstr); | |
9997 | else | |
a8fc9800 | 9998 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
9999 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
10000 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
10001 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
10002 | else | |
10003 | IoDIRP(dstr) = IoDIRP(sstr); | |
10004 | IoLINES(dstr) = IoLINES(sstr); | |
10005 | IoPAGE(dstr) = IoPAGE(sstr); | |
10006 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
10007 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
4376702e JH |
10008 | if(IoFLAGS(sstr) & IOf_FAKE_DIRP) { |
10009 | /* I have no idea why fake dirp (rsfps) | |
10010 | should be treaded differently but otherwise | |
10011 | we end up with leaks -- sky*/ | |
10012 | IoTOP_GV(dstr) = gv_dup_inc(IoTOP_GV(sstr), param); | |
10013 | IoFMT_GV(dstr) = gv_dup_inc(IoFMT_GV(sstr), param); | |
10014 | IoBOTTOM_GV(dstr) = gv_dup_inc(IoBOTTOM_GV(sstr), param); | |
10015 | } else { | |
10016 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); | |
10017 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); | |
10018 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); | |
10019 | } | |
1d7c1841 | 10020 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); |
1d7c1841 | 10021 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
1d7c1841 | 10022 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
1d7c1841 GS |
10023 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
10024 | IoTYPE(dstr) = IoTYPE(sstr); | |
10025 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
10026 | break; | |
10027 | case SVt_PVAV: | |
10028 | SvANY(dstr) = new_XPVAV(); | |
10029 | SvCUR(dstr) = SvCUR(sstr); | |
10030 | SvLEN(dstr) = SvLEN(sstr); | |
10031 | SvIVX(dstr) = SvIVX(sstr); | |
10032 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
10033 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
10034 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
10035 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); | |
1d7c1841 GS |
10036 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
10037 | if (AvARRAY((AV*)sstr)) { | |
10038 | SV **dst_ary, **src_ary; | |
10039 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
10040 | ||
10041 | src_ary = AvARRAY((AV*)sstr); | |
10042 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
10043 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
10044 | SvPVX(dstr) = (char*)dst_ary; | |
10045 | AvALLOC((AV*)dstr) = dst_ary; | |
10046 | if (AvREAL((AV*)sstr)) { | |
10047 | while (items-- > 0) | |
d2d73c3e | 10048 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
10049 | } |
10050 | else { | |
10051 | while (items-- > 0) | |
d2d73c3e | 10052 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
10053 | } |
10054 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
10055 | while (items-- > 0) { | |
10056 | *dst_ary++ = &PL_sv_undef; | |
10057 | } | |
10058 | } | |
10059 | else { | |
10060 | SvPVX(dstr) = Nullch; | |
10061 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
10062 | } | |
10063 | break; | |
10064 | case SVt_PVHV: | |
10065 | SvANY(dstr) = new_XPVHV(); | |
10066 | SvCUR(dstr) = SvCUR(sstr); | |
10067 | SvLEN(dstr) = SvLEN(sstr); | |
10068 | SvIVX(dstr) = SvIVX(sstr); | |
10069 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
10070 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
10071 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
1d7c1841 GS |
10072 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
10073 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
10074 | STRLEN i = 0; |
10075 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
10076 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
10077 | Newz(0, dxhv->xhv_array, | |
10078 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
10079 | while (i <= sxhv->xhv_max) { | |
10080 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
eb160463 GS |
10081 | (bool)!!HvSHAREKEYS(sstr), |
10082 | param); | |
1d7c1841 GS |
10083 | ++i; |
10084 | } | |
eb160463 GS |
10085 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, |
10086 | (bool)!!HvSHAREKEYS(sstr), param); | |
1d7c1841 GS |
10087 | } |
10088 | else { | |
10089 | SvPVX(dstr) = Nullch; | |
10090 | HvEITER((HV*)dstr) = (HE*)NULL; | |
10091 | } | |
10092 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
10093 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 10094 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 10095 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 10096 | av_push(param->stashes, dstr); |
1d7c1841 GS |
10097 | break; |
10098 | case SVt_PVFM: | |
10099 | SvANY(dstr) = new_XPVFM(); | |
10100 | FmLINES(dstr) = FmLINES(sstr); | |
10101 | goto dup_pvcv; | |
10102 | /* NOTREACHED */ | |
10103 | case SVt_PVCV: | |
10104 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 10105 | dup_pvcv: |
1d7c1841 GS |
10106 | SvCUR(dstr) = SvCUR(sstr); |
10107 | SvLEN(dstr) = SvLEN(sstr); | |
10108 | SvIVX(dstr) = SvIVX(sstr); | |
10109 | SvNVX(dstr) = SvNVX(sstr); | |
d2d73c3e AB |
10110 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr), param); |
10111 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr), param); | |
83841fad | 10112 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 10113 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 GS |
10114 | CvSTART(dstr) = CvSTART(sstr); |
10115 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
10116 | CvXSUB(dstr) = CvXSUB(sstr); | |
10117 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
10118 | if (CvCONST(sstr)) { |
10119 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
10120 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
10121 | sv_dup_inc(CvXSUBANY(sstr).any_ptr, param); | |
10122 | } | |
a23cf089 JD |
10123 | /* don't dup if copying back - CvGV isn't refcounted, so the |
10124 | * duped GV may never be freed. A bit of a hack! DAPM */ | |
10125 | CvGV(dstr) = (param->flags & CLONEf_JOIN_IN) ? | |
10126 | Nullgv : gv_dup(CvGV(sstr), param) ; | |
d2d73c3e AB |
10127 | if (param->flags & CLONEf_COPY_STACKS) { |
10128 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
10129 | } else { | |
10130 | CvDEPTH(dstr) = 0; | |
10131 | } | |
9755d405 | 10132 | PAD_DUP(CvPADLIST(dstr), CvPADLIST(sstr), param); |
d7afa7f5 JH |
10133 | CvOUTSIDE_SEQ(dstr) = CvOUTSIDE_SEQ(sstr); |
10134 | CvOUTSIDE(dstr) = | |
10135 | CvWEAKOUTSIDE(sstr) | |
10136 | ? cv_dup( CvOUTSIDE(sstr), param) | |
10137 | : cv_dup_inc(CvOUTSIDE(sstr), param); | |
1d7c1841 | 10138 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 10139 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
10140 | break; |
10141 | default: | |
c803eecc | 10142 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", (IV)SvTYPE(sstr)); |
1d7c1841 GS |
10143 | break; |
10144 | } | |
10145 | ||
10146 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
10147 | ++PL_sv_objcount; | |
10148 | ||
10149 | return dstr; | |
d2d73c3e | 10150 | } |
1d7c1841 | 10151 | |
645c22ef DM |
10152 | /* duplicate a context */ |
10153 | ||
1d7c1841 | 10154 | PERL_CONTEXT * |
a8fc9800 | 10155 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
10156 | { |
10157 | PERL_CONTEXT *ncxs; | |
10158 | ||
10159 | if (!cxs) | |
10160 | return (PERL_CONTEXT*)NULL; | |
10161 | ||
10162 | /* look for it in the table first */ | |
10163 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
10164 | if (ncxs) | |
10165 | return ncxs; | |
10166 | ||
10167 | /* create anew and remember what it is */ | |
10168 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
10169 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
10170 | ||
10171 | while (ix >= 0) { | |
10172 | PERL_CONTEXT *cx = &cxs[ix]; | |
10173 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
10174 | ncx->cx_type = cx->cx_type; | |
10175 | if (CxTYPE(cx) == CXt_SUBST) { | |
10176 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
10177 | } | |
10178 | else { | |
10179 | ncx->blk_oldsp = cx->blk_oldsp; | |
10180 | ncx->blk_oldcop = cx->blk_oldcop; | |
10181 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
10182 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
10183 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
10184 | ncx->blk_oldpm = cx->blk_oldpm; | |
10185 | ncx->blk_gimme = cx->blk_gimme; | |
10186 | switch (CxTYPE(cx)) { | |
10187 | case CXt_SUB: | |
10188 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
10189 | ? cv_dup_inc(cx->blk_sub.cv, param) |
10190 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 10191 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 10192 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 10193 | : Nullav); |
d2d73c3e | 10194 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
10195 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
10196 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
10197 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
10198 | break; | |
10199 | case CXt_EVAL: | |
10200 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
10201 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 10202 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 10203 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 10204 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
1d7c1841 GS |
10205 | break; |
10206 | case CXt_LOOP: | |
10207 | ncx->blk_loop.label = cx->blk_loop.label; | |
10208 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
10209 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
10210 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
10211 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
10212 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
10213 | ? cx->blk_loop.iterdata | |
d2d73c3e | 10214 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
d7afa7f5 JH |
10215 | ncx->blk_loop.oldcomppad |
10216 | = (PAD*)ptr_table_fetch(PL_ptr_table, | |
10217 | cx->blk_loop.oldcomppad); | |
d2d73c3e AB |
10218 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
10219 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
10220 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
10221 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
10222 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
10223 | break; | |
10224 | case CXt_FORMAT: | |
d2d73c3e AB |
10225 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
10226 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
10227 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 GS |
10228 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
10229 | break; | |
10230 | case CXt_BLOCK: | |
10231 | case CXt_NULL: | |
10232 | break; | |
10233 | } | |
10234 | } | |
10235 | --ix; | |
10236 | } | |
10237 | return ncxs; | |
10238 | } | |
10239 | ||
645c22ef DM |
10240 | /* duplicate a stack info structure */ |
10241 | ||
1d7c1841 | 10242 | PERL_SI * |
a8fc9800 | 10243 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
10244 | { |
10245 | PERL_SI *nsi; | |
10246 | ||
10247 | if (!si) | |
10248 | return (PERL_SI*)NULL; | |
10249 | ||
10250 | /* look for it in the table first */ | |
10251 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
10252 | if (nsi) | |
10253 | return nsi; | |
10254 | ||
10255 | /* create anew and remember what it is */ | |
10256 | Newz(56, nsi, 1, PERL_SI); | |
10257 | ptr_table_store(PL_ptr_table, si, nsi); | |
10258 | ||
d2d73c3e | 10259 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
10260 | nsi->si_cxix = si->si_cxix; |
10261 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 10262 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 10263 | nsi->si_type = si->si_type; |
d2d73c3e AB |
10264 | nsi->si_prev = si_dup(si->si_prev, param); |
10265 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
10266 | nsi->si_markoff = si->si_markoff; |
10267 | ||
10268 | return nsi; | |
10269 | } | |
10270 | ||
10271 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
10272 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
10273 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
10274 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
10275 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
10276 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
21637969 YST |
10277 | #define POPBOOL(ss,ix) ((ss)[--(ix)].any_bool) |
10278 | #define TOPBOOL(ss,ix) ((ss)[ix].any_bool) | |
1d7c1841 GS |
10279 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) |
10280 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
10281 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
10282 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
10283 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
10284 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
10285 | ||
10286 | /* XXXXX todo */ | |
10287 | #define pv_dup_inc(p) SAVEPV(p) | |
10288 | #define pv_dup(p) SAVEPV(p) | |
10289 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
10290 | ||
645c22ef DM |
10291 | /* map any object to the new equivent - either something in the |
10292 | * ptr table, or something in the interpreter structure | |
10293 | */ | |
10294 | ||
1d7c1841 GS |
10295 | void * |
10296 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
10297 | { | |
10298 | void *ret; | |
10299 | ||
10300 | if (!v) | |
10301 | return (void*)NULL; | |
10302 | ||
10303 | /* look for it in the table first */ | |
10304 | ret = ptr_table_fetch(PL_ptr_table, v); | |
10305 | if (ret) | |
10306 | return ret; | |
10307 | ||
10308 | /* see if it is part of the interpreter structure */ | |
10309 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 10310 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 10311 | else { |
1d7c1841 | 10312 | ret = v; |
05ec9bb3 | 10313 | } |
1d7c1841 GS |
10314 | |
10315 | return ret; | |
10316 | } | |
10317 | ||
645c22ef DM |
10318 | /* duplicate the save stack */ |
10319 | ||
1d7c1841 | 10320 | ANY * |
a8fc9800 | 10321 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
10322 | { |
10323 | ANY *ss = proto_perl->Tsavestack; | |
10324 | I32 ix = proto_perl->Tsavestack_ix; | |
10325 | I32 max = proto_perl->Tsavestack_max; | |
10326 | ANY *nss; | |
10327 | SV *sv; | |
10328 | GV *gv; | |
10329 | AV *av; | |
10330 | HV *hv; | |
10331 | void* ptr; | |
10332 | int intval; | |
10333 | long longval; | |
10334 | GP *gp; | |
10335 | IV iv; | |
10336 | I32 i; | |
c4e33207 | 10337 | char *c = NULL; |
1d7c1841 | 10338 | void (*dptr) (void*); |
acfe0abc | 10339 | void (*dxptr) (pTHX_ void*); |
e977893f | 10340 | OP *o; |
1d7c1841 GS |
10341 | |
10342 | Newz(54, nss, max, ANY); | |
10343 | ||
10344 | while (ix > 0) { | |
10345 | i = POPINT(ss,ix); | |
10346 | TOPINT(nss,ix) = i; | |
10347 | switch (i) { | |
10348 | case SAVEt_ITEM: /* normal string */ | |
10349 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10350 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10351 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10352 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10353 | break; |
10354 | case SAVEt_SV: /* scalar reference */ | |
10355 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10356 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10357 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10358 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 10359 | break; |
f4dd75d9 GS |
10360 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
10361 | c = (char*)POPPTR(ss,ix); | |
10362 | TOPPTR(nss,ix) = pv_dup(c); | |
10363 | ptr = POPPTR(ss,ix); | |
10364 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10365 | break; | |
05ec9bb3 NIS |
10366 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
10367 | c = (char*)POPPTR(ss,ix); | |
10368 | TOPPTR(nss,ix) = savesharedpv(c); | |
10369 | ptr = POPPTR(ss,ix); | |
10370 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10371 | break; | |
1d7c1841 GS |
10372 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
10373 | case SAVEt_SVREF: /* scalar reference */ | |
10374 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10375 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10376 | ptr = POPPTR(ss,ix); |
10377 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
10378 | break; | |
10379 | case SAVEt_AV: /* array reference */ | |
10380 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10381 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 10382 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10383 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10384 | break; |
10385 | case SAVEt_HV: /* hash reference */ | |
10386 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10387 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 10388 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10389 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10390 | break; |
10391 | case SAVEt_INT: /* int reference */ | |
10392 | ptr = POPPTR(ss,ix); | |
10393 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10394 | intval = (int)POPINT(ss,ix); | |
10395 | TOPINT(nss,ix) = intval; | |
10396 | break; | |
10397 | case SAVEt_LONG: /* long reference */ | |
10398 | ptr = POPPTR(ss,ix); | |
10399 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10400 | longval = (long)POPLONG(ss,ix); | |
10401 | TOPLONG(nss,ix) = longval; | |
10402 | break; | |
10403 | case SAVEt_I32: /* I32 reference */ | |
10404 | case SAVEt_I16: /* I16 reference */ | |
10405 | case SAVEt_I8: /* I8 reference */ | |
10406 | ptr = POPPTR(ss,ix); | |
10407 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10408 | i = POPINT(ss,ix); | |
10409 | TOPINT(nss,ix) = i; | |
10410 | break; | |
10411 | case SAVEt_IV: /* IV reference */ | |
10412 | ptr = POPPTR(ss,ix); | |
10413 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10414 | iv = POPIV(ss,ix); | |
10415 | TOPIV(nss,ix) = iv; | |
10416 | break; | |
10417 | case SAVEt_SPTR: /* SV* reference */ | |
10418 | ptr = POPPTR(ss,ix); | |
10419 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10420 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10421 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
10422 | break; |
10423 | case SAVEt_VPTR: /* random* reference */ | |
10424 | ptr = POPPTR(ss,ix); | |
10425 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10426 | ptr = POPPTR(ss,ix); | |
10427 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10428 | break; | |
10429 | case SAVEt_PPTR: /* char* reference */ | |
10430 | ptr = POPPTR(ss,ix); | |
10431 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10432 | c = (char*)POPPTR(ss,ix); | |
10433 | TOPPTR(nss,ix) = pv_dup(c); | |
10434 | break; | |
10435 | case SAVEt_HPTR: /* HV* reference */ | |
10436 | ptr = POPPTR(ss,ix); | |
10437 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10438 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10439 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
10440 | break; |
10441 | case SAVEt_APTR: /* AV* reference */ | |
10442 | ptr = POPPTR(ss,ix); | |
10443 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10444 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10445 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
10446 | break; |
10447 | case SAVEt_NSTAB: | |
10448 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 10449 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10450 | break; |
10451 | case SAVEt_GP: /* scalar reference */ | |
10452 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 10453 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
10454 | (void)GpREFCNT_inc(gp); |
10455 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 10456 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
10457 | c = (char*)POPPTR(ss,ix); |
10458 | TOPPTR(nss,ix) = pv_dup(c); | |
10459 | iv = POPIV(ss,ix); | |
10460 | TOPIV(nss,ix) = iv; | |
10461 | iv = POPIV(ss,ix); | |
10462 | TOPIV(nss,ix) = iv; | |
10463 | break; | |
10464 | case SAVEt_FREESV: | |
26d9b02f | 10465 | case SAVEt_MORTALIZESV: |
1d7c1841 | 10466 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10467 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10468 | break; |
10469 | case SAVEt_FREEOP: | |
10470 | ptr = POPPTR(ss,ix); | |
10471 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
10472 | /* these are assumed to be refcounted properly */ | |
10473 | switch (((OP*)ptr)->op_type) { | |
10474 | case OP_LEAVESUB: | |
10475 | case OP_LEAVESUBLV: | |
10476 | case OP_LEAVEEVAL: | |
10477 | case OP_LEAVE: | |
10478 | case OP_SCOPE: | |
10479 | case OP_LEAVEWRITE: | |
e977893f GS |
10480 | TOPPTR(nss,ix) = ptr; |
10481 | o = (OP*)ptr; | |
10482 | OpREFCNT_inc(o); | |
1d7c1841 GS |
10483 | break; |
10484 | default: | |
10485 | TOPPTR(nss,ix) = Nullop; | |
10486 | break; | |
10487 | } | |
10488 | } | |
10489 | else | |
10490 | TOPPTR(nss,ix) = Nullop; | |
10491 | break; | |
10492 | case SAVEt_FREEPV: | |
10493 | c = (char*)POPPTR(ss,ix); | |
10494 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
10495 | break; | |
10496 | case SAVEt_CLEARSV: | |
10497 | longval = POPLONG(ss,ix); | |
10498 | TOPLONG(nss,ix) = longval; | |
10499 | break; | |
10500 | case SAVEt_DELETE: | |
10501 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10502 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
10503 | c = (char*)POPPTR(ss,ix); |
10504 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
10505 | i = POPINT(ss,ix); | |
10506 | TOPINT(nss,ix) = i; | |
10507 | break; | |
10508 | case SAVEt_DESTRUCTOR: | |
10509 | ptr = POPPTR(ss,ix); | |
10510 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
10511 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 10512 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
10513 | break; |
10514 | case SAVEt_DESTRUCTOR_X: | |
10515 | ptr = POPPTR(ss,ix); | |
10516 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
10517 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 10518 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
10519 | break; |
10520 | case SAVEt_REGCONTEXT: | |
10521 | case SAVEt_ALLOC: | |
10522 | i = POPINT(ss,ix); | |
10523 | TOPINT(nss,ix) = i; | |
10524 | ix -= i; | |
10525 | break; | |
10526 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
10527 | i = POPINT(ss,ix); | |
10528 | TOPINT(nss,ix) = i; | |
10529 | break; | |
10530 | case SAVEt_AELEM: /* array element */ | |
10531 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10532 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10533 | i = POPINT(ss,ix); |
10534 | TOPINT(nss,ix) = i; | |
10535 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10536 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
10537 | break; |
10538 | case SAVEt_HELEM: /* hash element */ | |
10539 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10540 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10541 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10542 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10543 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 10544 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
10545 | break; |
10546 | case SAVEt_OP: | |
10547 | ptr = POPPTR(ss,ix); | |
10548 | TOPPTR(nss,ix) = ptr; | |
10549 | break; | |
10550 | case SAVEt_HINTS: | |
10551 | i = POPINT(ss,ix); | |
10552 | TOPINT(nss,ix) = i; | |
10553 | break; | |
c4410b1b GS |
10554 | case SAVEt_COMPPAD: |
10555 | av = (AV*)POPPTR(ss,ix); | |
c2ef0052 | 10556 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 10557 | break; |
c3564e5c GS |
10558 | case SAVEt_PADSV: |
10559 | longval = (long)POPLONG(ss,ix); | |
10560 | TOPLONG(nss,ix) = longval; | |
10561 | ptr = POPPTR(ss,ix); | |
10562 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10563 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10564 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 10565 | break; |
4f4e7967 | 10566 | case SAVEt_BOOL: |
21637969 | 10567 | ptr = POPPTR(ss,ix); |
4f4e7967 | 10568 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); |
21637969 | 10569 | longval = (long)POPBOOL(ss,ix); |
4f4e7967 JH |
10570 | TOPBOOL(nss,ix) = (bool)longval; |
10571 | break; | |
1d7c1841 GS |
10572 | default: |
10573 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
10574 | } | |
10575 | } | |
10576 | ||
10577 | return nss; | |
10578 | } | |
10579 | ||
645c22ef DM |
10580 | /* |
10581 | =for apidoc perl_clone | |
10582 | ||
10583 | Create and return a new interpreter by cloning the current one. | |
10584 | ||
ac388100 | 10585 | perl_clone takes these flags as parameters: |
4f4e7967 JH |
10586 | |
10587 | CLONEf_COPY_STACKS - is used to, well, copy the stacks also, | |
10588 | without it we only clone the data and zero the stacks, | |
10589 | with it we copy the stacks and the new perl interpreter is | |
10590 | ready to run at the exact same point as the previous one. | |
10591 | The pseudo-fork code uses COPY_STACKS while the | |
10592 | threads->new doesn't. | |
10593 | ||
10594 | CLONEf_KEEP_PTR_TABLE | |
10595 | perl_clone keeps a ptr_table with the pointer of the old | |
10596 | variable as a key and the new variable as a value, | |
10597 | this allows it to check if something has been cloned and not | |
10598 | clone it again but rather just use the value and increase the | |
10599 | refcount. If KEEP_PTR_TABLE is not set then perl_clone will kill | |
10600 | the ptr_table using the function | |
10601 | C<ptr_table_free(PL_ptr_table); PL_ptr_table = NULL;>, | |
10602 | reason to keep it around is if you want to dup some of your own | |
10603 | variable who are outside the graph perl scans, example of this | |
10604 | code is in threads.xs create | |
10605 | ||
10606 | CLONEf_CLONE_HOST | |
10607 | This is a win32 thing, it is ignored on unix, it tells perls | |
10608 | win32host code (which is c++) to clone itself, this is needed on | |
10609 | win32 if you want to run two threads at the same time, | |
10610 | if you just want to do some stuff in a separate perl interpreter | |
10611 | and then throw it away and return to the original one, | |
10612 | you don't need to do anything. | |
10613 | ||
645c22ef DM |
10614 | =cut |
10615 | */ | |
10616 | ||
10617 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
10618 | EXTERN_C PerlInterpreter * |
10619 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 10620 | |
1d7c1841 GS |
10621 | PerlInterpreter * |
10622 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
10623 | { | |
1d7c1841 | 10624 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
10625 | |
10626 | /* perlhost.h so we need to call into it | |
10627 | to clone the host, CPerlHost should have a c interface, sky */ | |
10628 | ||
10629 | if (flags & CLONEf_CLONE_HOST) { | |
10630 | return perl_clone_host(proto_perl,flags); | |
10631 | } | |
10632 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
10633 | proto_perl->IMem, |
10634 | proto_perl->IMemShared, | |
10635 | proto_perl->IMemParse, | |
10636 | proto_perl->IEnv, | |
10637 | proto_perl->IStdIO, | |
10638 | proto_perl->ILIO, | |
10639 | proto_perl->IDir, | |
10640 | proto_perl->ISock, | |
10641 | proto_perl->IProc); | |
10642 | } | |
10643 | ||
10644 | PerlInterpreter * | |
10645 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
10646 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
10647 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
10648 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
10649 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
10650 | struct IPerlProc* ipP) | |
10651 | { | |
10652 | /* XXX many of the string copies here can be optimized if they're | |
10653 | * constants; they need to be allocated as common memory and just | |
10654 | * their pointers copied. */ | |
10655 | ||
10656 | IV i; | |
64aa0685 GS |
10657 | CLONE_PARAMS clone_params; |
10658 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 10659 | |
1d7c1841 | 10660 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
ba869deb | 10661 | PERL_SET_THX(my_perl); |
1d7c1841 | 10662 | |
acfe0abc | 10663 | # ifdef DEBUGGING |
a4530404 | 10664 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
10665 | PL_markstack = 0; |
10666 | PL_scopestack = 0; | |
10667 | PL_savestack = 0; | |
26776375 JH |
10668 | PL_savestack_ix = 0; |
10669 | PL_savestack_max = -1; | |
1d7c1841 | 10670 | PL_retstack = 0; |
66fe0623 | 10671 | PL_sig_pending = 0; |
25596c82 | 10672 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 10673 | # else /* !DEBUGGING */ |
1d7c1841 | 10674 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 10675 | # endif /* DEBUGGING */ |
1d7c1841 GS |
10676 | |
10677 | /* host pointers */ | |
10678 | PL_Mem = ipM; | |
10679 | PL_MemShared = ipMS; | |
10680 | PL_MemParse = ipMP; | |
10681 | PL_Env = ipE; | |
10682 | PL_StdIO = ipStd; | |
10683 | PL_LIO = ipLIO; | |
10684 | PL_Dir = ipD; | |
10685 | PL_Sock = ipS; | |
10686 | PL_Proc = ipP; | |
1d7c1841 GS |
10687 | #else /* !PERL_IMPLICIT_SYS */ |
10688 | IV i; | |
64aa0685 GS |
10689 | CLONE_PARAMS clone_params; |
10690 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 10691 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 10692 | PERL_SET_THX(my_perl); |
1d7c1841 | 10693 | |
d2d73c3e AB |
10694 | |
10695 | ||
1d7c1841 | 10696 | # ifdef DEBUGGING |
a4530404 | 10697 | Poison(my_perl, 1, PerlInterpreter); |
1d7c1841 GS |
10698 | PL_markstack = 0; |
10699 | PL_scopestack = 0; | |
10700 | PL_savestack = 0; | |
26776375 JH |
10701 | PL_savestack_ix = 0; |
10702 | PL_savestack_max = -1; | |
1d7c1841 | 10703 | PL_retstack = 0; |
66fe0623 | 10704 | PL_sig_pending = 0; |
25596c82 | 10705 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
10706 | # else /* !DEBUGGING */ |
10707 | Zero(my_perl, 1, PerlInterpreter); | |
10708 | # endif /* DEBUGGING */ | |
10709 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 10710 | param->flags = flags; |
59b40662 | 10711 | param->proto_perl = proto_perl; |
1d7c1841 GS |
10712 | |
10713 | /* arena roots */ | |
10714 | PL_xiv_arenaroot = NULL; | |
10715 | PL_xiv_root = NULL; | |
612f20c3 | 10716 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 10717 | PL_xnv_root = NULL; |
612f20c3 | 10718 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 10719 | PL_xrv_root = NULL; |
612f20c3 | 10720 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 10721 | PL_xpv_root = NULL; |
612f20c3 | 10722 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 10723 | PL_xpviv_root = NULL; |
612f20c3 | 10724 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 10725 | PL_xpvnv_root = NULL; |
612f20c3 | 10726 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 10727 | PL_xpvcv_root = NULL; |
612f20c3 | 10728 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 10729 | PL_xpvav_root = NULL; |
612f20c3 | 10730 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 10731 | PL_xpvhv_root = NULL; |
612f20c3 | 10732 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 10733 | PL_xpvmg_root = NULL; |
612f20c3 | 10734 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 10735 | PL_xpvlv_root = NULL; |
612f20c3 | 10736 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 10737 | PL_xpvbm_root = NULL; |
612f20c3 | 10738 | PL_he_arenaroot = NULL; |
1d7c1841 GS |
10739 | PL_he_root = NULL; |
10740 | PL_nice_chunk = NULL; | |
10741 | PL_nice_chunk_size = 0; | |
10742 | PL_sv_count = 0; | |
10743 | PL_sv_objcount = 0; | |
10744 | PL_sv_root = Nullsv; | |
10745 | PL_sv_arenaroot = Nullsv; | |
10746 | ||
10747 | PL_debug = proto_perl->Idebug; | |
10748 | ||
e5dd39fc | 10749 | #ifdef USE_REENTRANT_API |
1c693a8c NC |
10750 | /* XXX: things like -Dm will segfault here in perlio, but doing |
10751 | * PERL_SET_CONTEXT(proto_perl); | |
10752 | * breaks too many other things | |
10753 | */ | |
59bd0823 | 10754 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
10755 | #endif |
10756 | ||
1d7c1841 GS |
10757 | /* create SV map for pointer relocation */ |
10758 | PL_ptr_table = ptr_table_new(); | |
10759 | ||
10760 | /* initialize these special pointers as early as possible */ | |
10761 | SvANY(&PL_sv_undef) = NULL; | |
10762 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
10763 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
10764 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
10765 | ||
1d7c1841 | 10766 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 GS |
10767 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
10768 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
10769 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
10770 | SvCUR(&PL_sv_no) = 0; | |
10771 | SvLEN(&PL_sv_no) = 1; | |
10772 | SvNVX(&PL_sv_no) = 0; | |
10773 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
10774 | ||
1d7c1841 | 10775 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 GS |
10776 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
10777 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
10778 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
10779 | SvCUR(&PL_sv_yes) = 1; | |
10780 | SvLEN(&PL_sv_yes) = 2; | |
10781 | SvNVX(&PL_sv_yes) = 1; | |
10782 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
10783 | ||
05ec9bb3 | 10784 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
10785 | PL_strtab = newHV(); |
10786 | HvSHAREKEYS_off(PL_strtab); | |
10787 | hv_ksplit(PL_strtab, 512); | |
10788 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
10789 | ||
05ec9bb3 NIS |
10790 | PL_compiling = proto_perl->Icompiling; |
10791 | ||
10792 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
10793 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
10794 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
10795 | ||
10796 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
10797 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
10798 | ||
1d7c1841 GS |
10799 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
10800 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 10801 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 10802 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 10803 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
10804 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
10805 | ||
10806 | /* pseudo environmental stuff */ | |
10807 | PL_origargc = proto_perl->Iorigargc; | |
7223e9d8 | 10808 | PL_origargv = proto_perl->Iorigargv; |
d2d73c3e | 10809 | |
d2d73c3e AB |
10810 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
10811 | ||
a1ea730d | 10812 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
10813 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
10814 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 10815 | #endif |
d2d73c3e AB |
10816 | |
10817 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
10818 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
10819 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 10820 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
10821 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
10822 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
10823 | |
10824 | /* switches */ | |
10825 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 10826 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
10827 | PL_localpatches = proto_perl->Ilocalpatches; |
10828 | PL_splitstr = proto_perl->Isplitstr; | |
10829 | PL_preprocess = proto_perl->Ipreprocess; | |
10830 | PL_minus_n = proto_perl->Iminus_n; | |
10831 | PL_minus_p = proto_perl->Iminus_p; | |
10832 | PL_minus_l = proto_perl->Iminus_l; | |
10833 | PL_minus_a = proto_perl->Iminus_a; | |
10834 | PL_minus_F = proto_perl->Iminus_F; | |
10835 | PL_doswitches = proto_perl->Idoswitches; | |
10836 | PL_dowarn = proto_perl->Idowarn; | |
10837 | PL_doextract = proto_perl->Idoextract; | |
10838 | PL_sawampersand = proto_perl->Isawampersand; | |
10839 | PL_unsafe = proto_perl->Iunsafe; | |
10840 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 10841 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
10842 | PL_perldb = proto_perl->Iperldb; |
10843 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 10844 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
10845 | |
10846 | /* magical thingies */ | |
10847 | /* XXX time(&PL_basetime) when asked for? */ | |
10848 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 10849 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
10850 | |
10851 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
10852 | PL_multiline = proto_perl->Imultiline; | |
10853 | PL_statusvalue = proto_perl->Istatusvalue; | |
10854 | #ifdef VMS | |
10855 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
10856 | #endif | |
0a378802 | 10857 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 10858 | |
4a4c6fe3 | 10859 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
10860 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
10861 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 10862 | |
d2f185dc AMS |
10863 | /* Clone the regex array */ |
10864 | PL_regex_padav = newAV(); | |
10865 | { | |
10866 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
10867 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
0f95fc41 AB |
10868 | av_push(PL_regex_padav, |
10869 | sv_dup_inc(regexen[0],param)); | |
10870 | for(i = 1; i <= len; i++) { | |
10871 | if(SvREPADTMP(regexen[i])) { | |
10872 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 10873 | } else { |
0f95fc41 AB |
10874 | av_push(PL_regex_padav, |
10875 | SvREFCNT_inc( | |
8cf8f3d1 | 10876 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 10877 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
10878 | )); |
10879 | } | |
d2f185dc AMS |
10880 | } |
10881 | } | |
10882 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 10883 | |
1d7c1841 | 10884 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
10885 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
10886 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
10887 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
10888 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
10889 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
10890 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
10891 | |
10892 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 10893 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
10894 | |
10895 | /* shortcuts to misc objects */ | |
d2d73c3e | 10896 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
10897 | |
10898 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
10899 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
10900 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
10901 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
10902 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
10903 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
10904 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
10905 | PL_lineary = av_dup(proto_perl->Ilineary, param); | |
10906 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
10907 | |
10908 | /* symbol tables */ | |
d2d73c3e AB |
10909 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
10910 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
10911 | PL_nullstash = hv_dup(proto_perl->Inullstash, param); | |
10912 | PL_debstash = hv_dup(proto_perl->Idebstash, param); | |
10913 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
10914 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
10915 | ||
10916 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 10917 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
5b7ea690 | 10918 | PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); |
d2d73c3e AB |
10919 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
10920 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
10921 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
10922 | |
10923 | PL_sub_generation = proto_perl->Isub_generation; | |
10924 | ||
10925 | /* funky return mechanisms */ | |
10926 | PL_forkprocess = proto_perl->Iforkprocess; | |
10927 | ||
10928 | /* subprocess state */ | |
d2d73c3e | 10929 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
10930 | |
10931 | /* internal state */ | |
10932 | PL_tainting = proto_perl->Itainting; | |
654c77f7 | 10933 | PL_taint_warn = proto_perl->Itaint_warn; |
1d7c1841 GS |
10934 | PL_maxo = proto_perl->Imaxo; |
10935 | if (proto_perl->Iop_mask) | |
10936 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
10937 | else | |
10938 | PL_op_mask = Nullch; | |
10939 | ||
10940 | /* current interpreter roots */ | |
d2d73c3e | 10941 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
10942 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
10943 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 10944 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
10945 | PL_eval_start = proto_perl->Ieval_start; |
10946 | ||
10947 | /* runtime control stuff */ | |
10948 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
10949 | PL_copline = proto_perl->Icopline; | |
10950 | ||
10951 | PL_filemode = proto_perl->Ifilemode; | |
10952 | PL_lastfd = proto_perl->Ilastfd; | |
10953 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
10954 | PL_Argv = NULL; | |
10955 | PL_Cmd = Nullch; | |
10956 | PL_gensym = proto_perl->Igensym; | |
10957 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 10958 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
10959 | PL_laststatval = proto_perl->Ilaststatval; |
10960 | PL_laststype = proto_perl->Ilaststype; | |
10961 | PL_mess_sv = Nullsv; | |
10962 | ||
d2d73c3e | 10963 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
10964 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
10965 | ||
10966 | /* interpreter atexit processing */ | |
10967 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
10968 | if (PL_exitlistlen) { | |
10969 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10970 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
10971 | } | |
10972 | else | |
10973 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 10974 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
10975 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
10976 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
10977 | |
10978 | PL_profiledata = NULL; | |
a8fc9800 | 10979 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 10980 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 10981 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 10982 | |
d2d73c3e | 10983 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
9755d405 JH |
10984 | |
10985 | PAD_CLONE_VARS(proto_perl, param); | |
1d7c1841 GS |
10986 | |
10987 | #ifdef HAVE_INTERP_INTERN | |
10988 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
10989 | #endif | |
10990 | ||
10991 | /* more statics moved here */ | |
10992 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 10993 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
10994 | |
10995 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
10996 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
10997 | ||
10998 | PL_uid = proto_perl->Iuid; | |
10999 | PL_euid = proto_perl->Ieuid; | |
11000 | PL_gid = proto_perl->Igid; | |
11001 | PL_egid = proto_perl->Iegid; | |
11002 | PL_nomemok = proto_perl->Inomemok; | |
11003 | PL_an = proto_perl->Ian; | |
1d7c1841 GS |
11004 | PL_op_seqmax = proto_perl->Iop_seqmax; |
11005 | PL_evalseq = proto_perl->Ievalseq; | |
11006 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
11007 | PL_origalen = proto_perl->Iorigalen; | |
11008 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
11009 | PL_osname = SAVEPV(proto_perl->Iosname); | |
8257dec7 | 11010 | PL_sh_path_compat = proto_perl->Ish_path_compat; /* XXX never deallocated */ |
1d7c1841 GS |
11011 | PL_sighandlerp = proto_perl->Isighandlerp; |
11012 | ||
11013 | ||
11014 | PL_runops = proto_perl->Irunops; | |
11015 | ||
11016 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
11017 | ||
11018 | #ifdef CSH | |
11019 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 11020 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
11021 | #endif |
11022 | ||
11023 | PL_lex_state = proto_perl->Ilex_state; | |
11024 | PL_lex_defer = proto_perl->Ilex_defer; | |
11025 | PL_lex_expect = proto_perl->Ilex_expect; | |
11026 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
11027 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
11028 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
11029 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
11030 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
11031 | PL_lex_op = proto_perl->Ilex_op; |
11032 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
11033 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
11034 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
11035 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
11036 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
11037 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
11038 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
11039 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
11040 | ||
11041 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
11042 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
11043 | PL_nexttoke = proto_perl->Inexttoke; | |
11044 | ||
1d773130 TB |
11045 | /* XXX This is probably masking the deeper issue of why |
11046 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
11047 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
11048 | * (A little debugging with a watchpoint on it may help.) | |
11049 | */ | |
389edf32 TB |
11050 | if (SvANY(proto_perl->Ilinestr)) { |
11051 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
11052 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); | |
11053 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11054 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
11055 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11056 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
11057 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11058 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
11059 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11060 | } | |
11061 | else { | |
11062 | PL_linestr = NEWSV(65,79); | |
11063 | sv_upgrade(PL_linestr,SVt_PVIV); | |
11064 | sv_setpvn(PL_linestr,"",0); | |
11065 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
11066 | } | |
1d7c1841 | 11067 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
11068 | PL_pending_ident = proto_perl->Ipending_ident; |
11069 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
11070 | ||
11071 | PL_expect = proto_perl->Iexpect; | |
11072 | ||
11073 | PL_multi_start = proto_perl->Imulti_start; | |
11074 | PL_multi_end = proto_perl->Imulti_end; | |
11075 | PL_multi_open = proto_perl->Imulti_open; | |
11076 | PL_multi_close = proto_perl->Imulti_close; | |
11077 | ||
11078 | PL_error_count = proto_perl->Ierror_count; | |
11079 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 11080 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 | 11081 | |
1d773130 | 11082 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 TB |
11083 | if (SvANY(proto_perl->Ilinestr)) { |
11084 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
11085 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11086 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
11087 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11088 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
11089 | } | |
11090 | else { | |
11091 | PL_last_uni = SvPVX(PL_linestr); | |
11092 | PL_last_lop = SvPVX(PL_linestr); | |
11093 | PL_last_lop_op = 0; | |
11094 | } | |
1d7c1841 | 11095 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 11096 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
11097 | #ifdef FCRYPT |
11098 | PL_cryptseen = proto_perl->Icryptseen; | |
11099 | #endif | |
11100 | ||
11101 | PL_hints = proto_perl->Ihints; | |
11102 | ||
11103 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
11104 | ||
11105 | #ifdef USE_LOCALE_COLLATE | |
11106 | PL_collation_ix = proto_perl->Icollation_ix; | |
11107 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
11108 | PL_collation_standard = proto_perl->Icollation_standard; | |
11109 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
11110 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
11111 | #endif /* USE_LOCALE_COLLATE */ | |
11112 | ||
11113 | #ifdef USE_LOCALE_NUMERIC | |
11114 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
11115 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
11116 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 11117 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
11118 | #endif /* !USE_LOCALE_NUMERIC */ |
11119 | ||
11120 | /* utf8 character classes */ | |
d2d73c3e AB |
11121 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
11122 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
11123 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
11124 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
11125 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
11126 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
11127 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
11128 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
11129 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
11130 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
11131 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
11132 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
11133 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
11134 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
11135 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
11136 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
11137 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 11138 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
11139 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
11140 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 | 11141 | |
654c77f7 | 11142 | /* Did the locale setup indicate UTF-8? */ |
30260be2 | 11143 | PL_utf8locale = proto_perl->Iutf8locale; |
654c77f7 JH |
11144 | /* Unicode features (see perlrun/-C) */ |
11145 | PL_unicode = proto_perl->Iunicode; | |
11146 | ||
11147 | /* Pre-5.8 signals control */ | |
11148 | PL_signals = proto_perl->Isignals; | |
11149 | ||
11150 | /* times() ticks per second */ | |
11151 | PL_clocktick = proto_perl->Iclocktick; | |
11152 | ||
11153 | /* Recursion stopper for PerlIO_find_layer */ | |
11154 | PL_in_load_module = proto_perl->Iin_load_module; | |
11155 | ||
11156 | /* sort() routine */ | |
11157 | PL_sort_RealCmp = proto_perl->Isort_RealCmp; | |
11158 | ||
630cd32b JH |
11159 | /* Not really needed/useful since the reenrant_retint is "volatile", |
11160 | * but do it for consistency's sake. */ | |
11161 | PL_reentrant_retint = proto_perl->Ireentrant_retint; | |
11162 | ||
0710cc63 JH |
11163 | /* Hooks to shared SVs and locks. */ |
11164 | PL_sharehook = proto_perl->Isharehook; | |
11165 | PL_lockhook = proto_perl->Ilockhook; | |
11166 | PL_unlockhook = proto_perl->Iunlockhook; | |
11167 | PL_threadhook = proto_perl->Ithreadhook; | |
11168 | ||
11169 | PL_runops_std = proto_perl->Irunops_std; | |
11170 | PL_runops_dbg = proto_perl->Irunops_dbg; | |
11171 | ||
11172 | #ifdef THREADS_HAVE_PIDS | |
11173 | PL_ppid = proto_perl->Ippid; | |
11174 | #endif | |
11175 | ||
1d7c1841 GS |
11176 | /* swatch cache */ |
11177 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
11178 | PL_last_swash_klen = 0; | |
11179 | PL_last_swash_key[0]= '\0'; | |
11180 | PL_last_swash_tmps = (U8*)NULL; | |
11181 | PL_last_swash_slen = 0; | |
11182 | ||
11183 | /* perly.c globals */ | |
11184 | PL_yydebug = proto_perl->Iyydebug; | |
11185 | PL_yynerrs = proto_perl->Iyynerrs; | |
11186 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
11187 | PL_yychar = proto_perl->Iyychar; | |
11188 | PL_yyval = proto_perl->Iyyval; | |
11189 | PL_yylval = proto_perl->Iyylval; | |
11190 | ||
11191 | PL_glob_index = proto_perl->Iglob_index; | |
11192 | PL_srand_called = proto_perl->Isrand_called; | |
c71f9582 | 11193 | PL_hash_seed = proto_perl->Ihash_seed; |
7f047bfa | 11194 | PL_rehash_seed = proto_perl->Irehash_seed; |
1d7c1841 GS |
11195 | PL_uudmap['M'] = 0; /* reinits on demand */ |
11196 | PL_bitcount = Nullch; /* reinits on demand */ | |
11197 | ||
66fe0623 NIS |
11198 | if (proto_perl->Ipsig_pend) { |
11199 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 11200 | } |
66fe0623 NIS |
11201 | else { |
11202 | PL_psig_pend = (int*)NULL; | |
11203 | } | |
11204 | ||
1d7c1841 | 11205 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
11206 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
11207 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 11208 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
11209 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
11210 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
11211 | } |
11212 | } | |
11213 | else { | |
11214 | PL_psig_ptr = (SV**)NULL; | |
11215 | PL_psig_name = (SV**)NULL; | |
11216 | } | |
11217 | ||
11218 | /* thrdvar.h stuff */ | |
11219 | ||
a0739874 | 11220 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
11221 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
11222 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
11223 | PL_tmps_max = proto_perl->Ttmps_max; | |
11224 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
11225 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
11226 | i = 0; | |
11227 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 11228 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
11229 | ++i; |
11230 | } | |
11231 | ||
11232 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
11233 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
11234 | Newz(54, PL_markstack, i, I32); | |
11235 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
11236 | - proto_perl->Tmarkstack); | |
11237 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
11238 | - proto_perl->Tmarkstack); | |
11239 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
11240 | PL_markstack_ptr - PL_markstack + 1, I32); | |
11241 | ||
11242 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
11243 | * NOTE: unlike the others! */ | |
11244 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
11245 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
11246 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
11247 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
11248 | ||
11249 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
11250 | * NOTE: unlike the others! */ | |
11251 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
11252 | PL_retstack_max = proto_perl->Tretstack_max; | |
11253 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
ce0a1ae0 | 11254 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, OP*); |
1d7c1841 GS |
11255 | |
11256 | /* NOTE: si_dup() looks at PL_markstack */ | |
d2d73c3e | 11257 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
11258 | |
11259 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
11260 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
11261 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
11262 | |
11263 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
11264 | PL_stack_base = AvARRAY(PL_curstack); | |
11265 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
11266 | - proto_perl->Tstack_base); | |
11267 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
11268 | ||
11269 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
11270 | * NOTE: unlike the others! */ | |
11271 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
11272 | PL_savestack_max = proto_perl->Tsavestack_max; | |
11273 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 11274 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
11275 | } |
11276 | else { | |
11277 | init_stacks(); | |
985e7056 | 11278 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
11279 | } |
11280 | ||
11281 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
11282 | PL_top_env = &PL_start_env; | |
11283 | ||
11284 | PL_op = proto_perl->Top; | |
11285 | ||
11286 | PL_Sv = Nullsv; | |
11287 | PL_Xpv = (XPV*)NULL; | |
11288 | PL_na = proto_perl->Tna; | |
11289 | ||
11290 | PL_statbuf = proto_perl->Tstatbuf; | |
11291 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
11292 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
11293 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
11294 | #ifdef HAS_TIMES |
11295 | PL_timesbuf = proto_perl->Ttimesbuf; | |
11296 | #endif | |
11297 | ||
11298 | PL_tainted = proto_perl->Ttainted; | |
11299 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
11300 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
11301 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
11302 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
11303 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 11304 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
11305 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
11306 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
11307 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
11308 | |
11309 | PL_restartop = proto_perl->Trestartop; | |
11310 | PL_in_eval = proto_perl->Tin_eval; | |
11311 | PL_delaymagic = proto_perl->Tdelaymagic; | |
11312 | PL_dirty = proto_perl->Tdirty; | |
11313 | PL_localizing = proto_perl->Tlocalizing; | |
11314 | ||
14dd3ad8 | 11315 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 11316 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 11317 | #endif |
d2d73c3e | 11318 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
73c86719 | 11319 | PL_hv_fetch_ent_mh = Nullhe; |
1d7c1841 GS |
11320 | PL_modcount = proto_perl->Tmodcount; |
11321 | PL_lastgotoprobe = Nullop; | |
11322 | PL_dumpindent = proto_perl->Tdumpindent; | |
11323 | ||
11324 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
11325 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
11326 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
11327 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
11328 | PL_sortcxix = proto_perl->Tsortcxix; |
11329 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
11330 | PL_efloatsize = 0; /* reinits on demand */ | |
11331 | ||
11332 | /* regex stuff */ | |
11333 | ||
11334 | PL_screamfirst = NULL; | |
11335 | PL_screamnext = NULL; | |
11336 | PL_maxscream = -1; /* reinits on demand */ | |
11337 | PL_lastscream = Nullsv; | |
11338 | ||
11339 | PL_watchaddr = NULL; | |
11340 | PL_watchok = Nullch; | |
11341 | ||
11342 | PL_regdummy = proto_perl->Tregdummy; | |
11343 | PL_regcomp_parse = Nullch; | |
11344 | PL_regxend = Nullch; | |
11345 | PL_regcode = (regnode*)NULL; | |
11346 | PL_regnaughty = 0; | |
11347 | PL_regsawback = 0; | |
11348 | PL_regprecomp = Nullch; | |
11349 | PL_regnpar = 0; | |
11350 | PL_regsize = 0; | |
11351 | PL_regflags = 0; | |
11352 | PL_regseen = 0; | |
11353 | PL_seen_zerolen = 0; | |
11354 | PL_seen_evals = 0; | |
11355 | PL_regcomp_rx = (regexp*)NULL; | |
11356 | PL_extralen = 0; | |
11357 | PL_colorset = 0; /* reinits PL_colors[] */ | |
11358 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
11359 | PL_reg_whilem_seen = 0; | |
11360 | PL_reginput = Nullch; | |
11361 | PL_regbol = Nullch; | |
11362 | PL_regeol = Nullch; | |
11363 | PL_regstartp = (I32*)NULL; | |
11364 | PL_regendp = (I32*)NULL; | |
11365 | PL_reglastparen = (U32*)NULL; | |
4e58e0cf | 11366 | PL_reglastcloseparen = (U32*)NULL; |
1d7c1841 | 11367 | PL_regtill = Nullch; |
1d7c1841 GS |
11368 | PL_reg_start_tmp = (char**)NULL; |
11369 | PL_reg_start_tmpl = 0; | |
11370 | PL_regdata = (struct reg_data*)NULL; | |
11371 | PL_bostr = Nullch; | |
11372 | PL_reg_flags = 0; | |
11373 | PL_reg_eval_set = 0; | |
11374 | PL_regnarrate = 0; | |
11375 | PL_regprogram = (regnode*)NULL; | |
11376 | PL_regindent = 0; | |
11377 | PL_regcc = (CURCUR*)NULL; | |
11378 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
11379 | PL_reg_re = (regexp*)NULL; | |
11380 | PL_reg_ganch = Nullch; | |
11381 | PL_reg_sv = Nullsv; | |
53c4c00c | 11382 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
11383 | PL_reg_magic = (MAGIC*)NULL; |
11384 | PL_reg_oldpos = 0; | |
11385 | PL_reg_oldcurpm = (PMOP*)NULL; | |
11386 | PL_reg_curpm = (PMOP*)NULL; | |
11387 | PL_reg_oldsaved = Nullch; | |
11388 | PL_reg_oldsavedlen = 0; | |
11389 | PL_reg_maxiter = 0; | |
11390 | PL_reg_leftiter = 0; | |
11391 | PL_reg_poscache = Nullch; | |
11392 | PL_reg_poscache_size= 0; | |
11393 | ||
11394 | /* RE engine - function pointers */ | |
11395 | PL_regcompp = proto_perl->Tregcompp; | |
11396 | PL_regexecp = proto_perl->Tregexecp; | |
11397 | PL_regint_start = proto_perl->Tregint_start; | |
11398 | PL_regint_string = proto_perl->Tregint_string; | |
11399 | PL_regfree = proto_perl->Tregfree; | |
11400 | ||
11401 | PL_reginterp_cnt = 0; | |
11402 | PL_reg_starttry = 0; | |
11403 | ||
a2efc822 SC |
11404 | /* Pluggable optimizer */ |
11405 | PL_peepp = proto_perl->Tpeepp; | |
11406 | ||
c0401c5d JH |
11407 | PL_stashcache = newHV(); |
11408 | ||
a0739874 DM |
11409 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
11410 | ptr_table_free(PL_ptr_table); | |
11411 | PL_ptr_table = NULL; | |
11412 | } | |
8cf8f3d1 | 11413 | |
f284b03f AMS |
11414 | /* Call the ->CLONE method, if it exists, for each of the stashes |
11415 | identified by sv_dup() above. | |
11416 | */ | |
d2d73c3e AB |
11417 | while(av_len(param->stashes) != -1) { |
11418 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
11419 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
11420 | if (cloner && GvCV(cloner)) { | |
11421 | dSP; | |
11422 | ENTER; | |
11423 | SAVETMPS; | |
11424 | PUSHMARK(SP); | |
dc507217 | 11425 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
11426 | PUTBACK; |
11427 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
11428 | FREETMPS; | |
11429 | LEAVE; | |
11430 | } | |
4a09accc | 11431 | } |
a0739874 | 11432 | |
dc507217 | 11433 | SvREFCNT_dec(param->stashes); |
dc507217 | 11434 | |
1d7c1841 | 11435 | return my_perl; |
1d7c1841 GS |
11436 | } |
11437 | ||
1d7c1841 | 11438 | #endif /* USE_ITHREADS */ |
a0ae6670 | 11439 | |
9f4817db | 11440 | /* |
ccfc67b7 JH |
11441 | =head1 Unicode Support |
11442 | ||
9f4817db JH |
11443 | =for apidoc sv_recode_to_utf8 |
11444 | ||
5d170f3a JH |
11445 | The encoding is assumed to be an Encode object, on entry the PV |
11446 | of the sv is assumed to be octets in that encoding, and the sv | |
11447 | will be converted into Unicode (and UTF-8). | |
9f4817db | 11448 | |
5d170f3a JH |
11449 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
11450 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
11451 | an C<Encode::XS> Encoding object, bad things will happen. |
11452 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 11453 | |
5d170f3a | 11454 | The PV of the sv is returned. |
9f4817db | 11455 | |
5d170f3a JH |
11456 | =cut */ |
11457 | ||
11458 | char * | |
11459 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
11460 | { | |
975adce1 | 11461 | if (SvPOK(sv) && !SvUTF8(sv) && !IN_BYTES && SvROK(encoding)) { |
5b7ea690 JH |
11462 | SV *uni; |
11463 | STRLEN len; | |
11464 | char *s; | |
11465 | dSP; | |
11466 | ENTER; | |
11467 | SAVETMPS; | |
975adce1 | 11468 | save_re_context(); |
5b7ea690 JH |
11469 | PUSHMARK(sp); |
11470 | EXTEND(SP, 3); | |
11471 | XPUSHs(encoding); | |
11472 | XPUSHs(sv); | |
f9893866 NIS |
11473 | /* |
11474 | NI-S 2002/07/09 | |
11475 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
11476 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means | |
11477 | remove converted chars from source. | |
11478 | ||
11479 | Both will default the value - let them. | |
11480 | ||
5b7ea690 | 11481 | XPUSHs(&PL_sv_yes); |
f9893866 | 11482 | */ |
5b7ea690 JH |
11483 | PUTBACK; |
11484 | call_method("decode", G_SCALAR); | |
11485 | SPAGAIN; | |
11486 | uni = POPs; | |
11487 | PUTBACK; | |
11488 | s = SvPV(uni, len); | |
5b7ea690 JH |
11489 | if (s != SvPVX(sv)) { |
11490 | SvGROW(sv, len + 1); | |
11491 | Move(s, SvPVX(sv), len, char); | |
11492 | SvCUR_set(sv, len); | |
11493 | SvPVX(sv)[len] = 0; | |
11494 | } | |
11495 | FREETMPS; | |
11496 | LEAVE; | |
5b7ea690 | 11497 | SvUTF8_on(sv); |
f9893866 NIS |
11498 | } |
11499 | return SvPVX(sv); | |
9f4817db JH |
11500 | } |
11501 | ||
975adce1 JH |
11502 | /* |
11503 | =for apidoc sv_cat_decode | |
11504 | ||
11505 | The encoding is assumed to be an Encode object, the PV of the ssv is | |
11506 | assumed to be octets in that encoding and decoding the input starts | |
11507 | from the position which (PV + *offset) pointed to. The dsv will be | |
11508 | concatenated the decoded UTF-8 string from ssv. Decoding will terminate | |
11509 | when the string tstr appears in decoding output or the input ends on | |
11510 | the PV of the ssv. The value which the offset points will be modified | |
11511 | to the last input position on the ssv. | |
68795e93 | 11512 | |
975adce1 JH |
11513 | Returns TRUE if the terminator was found, else returns FALSE. |
11514 | ||
11515 | =cut */ | |
11516 | ||
11517 | bool | |
11518 | Perl_sv_cat_decode(pTHX_ SV *dsv, SV *encoding, | |
11519 | SV *ssv, int *offset, char *tstr, int tlen) | |
11520 | { | |
c04fee9e | 11521 | bool ret = FALSE; |
975adce1 | 11522 | if (SvPOK(ssv) && SvPOK(dsv) && SvROK(encoding) && offset) { |
975adce1 JH |
11523 | SV *offsv; |
11524 | dSP; | |
11525 | ENTER; | |
11526 | SAVETMPS; | |
11527 | save_re_context(); | |
11528 | PUSHMARK(sp); | |
11529 | EXTEND(SP, 6); | |
11530 | XPUSHs(encoding); | |
11531 | XPUSHs(dsv); | |
11532 | XPUSHs(ssv); | |
11533 | XPUSHs(offsv = sv_2mortal(newSViv(*offset))); | |
11534 | XPUSHs(sv_2mortal(newSVpvn(tstr, tlen))); | |
11535 | PUTBACK; | |
11536 | call_method("cat_decode", G_SCALAR); | |
11537 | SPAGAIN; | |
11538 | ret = SvTRUE(TOPs); | |
11539 | *offset = SvIV(offsv); | |
11540 | PUTBACK; | |
11541 | FREETMPS; | |
11542 | LEAVE; | |
975adce1 | 11543 | } |
c04fee9e JH |
11544 | else |
11545 | Perl_croak(aTHX_ "Invalid argument to sv_cat_decode"); | |
11546 | return ret; | |
975adce1 | 11547 | } |
f9893866 | 11548 |