Commit | Line | Data |
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a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
4bb101f2 | 3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
241d1a3b | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, by Larry Wall and others |
79072805 LW |
5 | * |
6 | * You may distribute under the terms of either the GNU General Public | |
7 | * License or the Artistic License, as specified in the README file. | |
8 | * | |
a0d0e21e | 9 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
645c22ef DM |
10 | * |
11 | * | |
5e045b90 AMS |
12 | * This file contains the code that creates, manipulates and destroys |
13 | * scalar values (SVs). The other types (AV, HV, GV, etc.) reuse the | |
14 | * structure of an SV, so their creation and destruction is handled | |
15 | * here; higher-level functions are in av.c, hv.c, and so on. Opcode | |
16 | * level functions (eg. substr, split, join) for each of the types are | |
17 | * in the pp*.c files. | |
79072805 LW |
18 | */ |
19 | ||
20 | #include "EXTERN.h" | |
864dbfa3 | 21 | #define PERL_IN_SV_C |
79072805 | 22 | #include "perl.h" |
d2f185dc | 23 | #include "regcomp.h" |
79072805 | 24 | |
51371543 | 25 | #define FCALL *f |
2c5424a7 | 26 | |
2f8ed50e OS |
27 | #ifdef __Lynx__ |
28 | /* Missing proto on LynxOS */ | |
29 | char *gconvert(double, int, int, char *); | |
30 | #endif | |
31 | ||
e23c8137 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 | ||
f8c7b90f | 50 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d | 51 | #define SV_COW_NEXT_SV(sv) INT2PTR(SV *,SvUVX(sv)) |
607fa7f2 | 52 | #define SV_COW_NEXT_SV_SET(current,next) SvUV_set(current, PTR2UV(next)) |
b5ccf5f2 | 53 | /* This is a pessimistic view. Scalar must be purely a read-write PV to copy- |
765f542d | 54 | on-write. */ |
765f542d | 55 | #endif |
645c22ef DM |
56 | |
57 | /* ============================================================================ | |
58 | ||
59 | =head1 Allocation and deallocation of SVs. | |
60 | ||
5e045b90 AMS |
61 | An SV (or AV, HV, etc.) is allocated in two parts: the head (struct sv, |
62 | av, hv...) contains type and reference count information, as well as a | |
63 | pointer to the body (struct xrv, xpv, xpviv...), which contains fields | |
64 | specific to each type. | |
65 | ||
4977e971 NC |
66 | Normally, this allocation is done using arenas, which by default are |
67 | approximately 4K chunks of memory parcelled up into N heads or bodies. The | |
68 | first slot in each arena is reserved, and is used to hold a link to the next | |
69 | arena. In the case of heads, the unused first slot also contains some flags | |
70 | and a note of the number of slots. Snaked through each arena chain is a | |
5e045b90 | 71 | linked list of free items; when this becomes empty, an extra arena is |
4977e971 | 72 | allocated and divided up into N items which are threaded into the free list. |
645c22ef DM |
73 | |
74 | The following global variables are associated with arenas: | |
75 | ||
76 | PL_sv_arenaroot pointer to list of SV arenas | |
77 | PL_sv_root pointer to list of free SV structures | |
78 | ||
79 | PL_foo_arenaroot pointer to list of foo arenas, | |
80 | PL_foo_root pointer to list of free foo bodies | |
81 | ... for foo in xiv, xnv, xrv, xpv etc. | |
82 | ||
83 | Note that some of the larger and more rarely used body types (eg xpvio) | |
84 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
85 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
86 | with all items individually malloc()ed. In addition, a few SV heads are | |
87 | not allocated from an arena, but are instead directly created as static | |
4977e971 NC |
88 | or auto variables, eg PL_sv_undef. The size of arenas can be changed from |
89 | the default by setting PERL_ARENA_SIZE appropriately at compile time. | |
645c22ef DM |
90 | |
91 | The SV arena serves the secondary purpose of allowing still-live SVs | |
92 | to be located and destroyed during final cleanup. | |
93 | ||
94 | At the lowest level, the macros new_SV() and del_SV() grab and free | |
95 | an SV head. (If debugging with -DD, del_SV() calls the function S_del_sv() | |
96 | to return the SV to the free list with error checking.) new_SV() calls | |
97 | more_sv() / sv_add_arena() to add an extra arena if the free list is empty. | |
98 | SVs in the free list have their SvTYPE field set to all ones. | |
99 | ||
100 | Similarly, there are macros new_XIV()/del_XIV(), new_XNV()/del_XNV() etc | |
101 | that allocate and return individual body types. Normally these are mapped | |
ff276b08 RG |
102 | to the arena-manipulating functions new_xiv()/del_xiv() etc, but may be |
103 | instead mapped directly to malloc()/free() if PURIFY is defined. The | |
645c22ef DM |
104 | new/del functions remove from, or add to, the appropriate PL_foo_root |
105 | list, and call more_xiv() etc to add a new arena if the list is empty. | |
106 | ||
ff276b08 | 107 | At the time of very final cleanup, sv_free_arenas() is called from |
645c22ef DM |
108 | perl_destruct() to physically free all the arenas allocated since the |
109 | start of the interpreter. Note that this also clears PL_he_arenaroot, | |
110 | which is otherwise dealt with in hv.c. | |
111 | ||
112 | Manipulation of any of the PL_*root pointers is protected by enclosing | |
113 | LOCK_SV_MUTEX; ... UNLOCK_SV_MUTEX calls which should Do the Right Thing | |
114 | if threads are enabled. | |
115 | ||
116 | The function visit() scans the SV arenas list, and calls a specified | |
117 | function for each SV it finds which is still live - ie which has an SvTYPE | |
118 | other than all 1's, and a non-zero SvREFCNT. visit() is used by the | |
119 | following functions (specified as [function that calls visit()] / [function | |
120 | called by visit() for each SV]): | |
121 | ||
122 | sv_report_used() / do_report_used() | |
123 | dump all remaining SVs (debugging aid) | |
124 | ||
125 | sv_clean_objs() / do_clean_objs(),do_clean_named_objs() | |
126 | Attempt to free all objects pointed to by RVs, | |
127 | and, unless DISABLE_DESTRUCTOR_KLUDGE is defined, | |
128 | try to do the same for all objects indirectly | |
129 | referenced by typeglobs too. Called once from | |
130 | perl_destruct(), prior to calling sv_clean_all() | |
131 | below. | |
132 | ||
133 | sv_clean_all() / do_clean_all() | |
134 | SvREFCNT_dec(sv) each remaining SV, possibly | |
135 | triggering an sv_free(). It also sets the | |
136 | SVf_BREAK flag on the SV to indicate that the | |
137 | refcnt has been artificially lowered, and thus | |
138 | stopping sv_free() from giving spurious warnings | |
139 | about SVs which unexpectedly have a refcnt | |
140 | of zero. called repeatedly from perl_destruct() | |
141 | until there are no SVs left. | |
142 | ||
143 | =head2 Summary | |
144 | ||
145 | Private API to rest of sv.c | |
146 | ||
147 | new_SV(), del_SV(), | |
148 | ||
149 | new_XIV(), del_XIV(), | |
150 | new_XNV(), del_XNV(), | |
151 | etc | |
152 | ||
153 | Public API: | |
154 | ||
8cf8f3d1 | 155 | sv_report_used(), sv_clean_objs(), sv_clean_all(), sv_free_arenas() |
645c22ef DM |
156 | |
157 | ||
158 | =cut | |
159 | ||
160 | ============================================================================ */ | |
161 | ||
162 | ||
51371543 | 163 | |
4561caa4 CS |
164 | /* |
165 | * "A time to plant, and a time to uproot what was planted..." | |
166 | */ | |
167 | ||
77354fb4 NC |
168 | /* |
169 | * nice_chunk and nice_chunk size need to be set | |
170 | * and queried under the protection of sv_mutex | |
171 | */ | |
172 | void | |
173 | Perl_offer_nice_chunk(pTHX_ void *chunk, U32 chunk_size) | |
174 | { | |
175 | void *new_chunk; | |
176 | U32 new_chunk_size; | |
177 | LOCK_SV_MUTEX; | |
178 | new_chunk = (void *)(chunk); | |
179 | new_chunk_size = (chunk_size); | |
180 | if (new_chunk_size > PL_nice_chunk_size) { | |
181 | Safefree(PL_nice_chunk); | |
182 | PL_nice_chunk = (char *) new_chunk; | |
183 | PL_nice_chunk_size = new_chunk_size; | |
184 | } else { | |
185 | Safefree(chunk); | |
186 | } | |
187 | UNLOCK_SV_MUTEX; | |
188 | } | |
cac9b346 | 189 | |
fd0854ff DM |
190 | #ifdef DEBUG_LEAKING_SCALARS |
191 | # ifdef NETWARE | |
192 | # define FREE_SV_DEBUG_FILE(sv) PerlMemfree((sv)->sv_debug_file) | |
193 | # else | |
194 | # define FREE_SV_DEBUG_FILE(sv) PerlMemShared_free((sv)->sv_debug_file) | |
195 | # endif | |
196 | #else | |
197 | # define FREE_SV_DEBUG_FILE(sv) | |
198 | #endif | |
199 | ||
053fc874 GS |
200 | #define plant_SV(p) \ |
201 | STMT_START { \ | |
fd0854ff | 202 | FREE_SV_DEBUG_FILE(p); \ |
053fc874 GS |
203 | SvANY(p) = (void *)PL_sv_root; \ |
204 | SvFLAGS(p) = SVTYPEMASK; \ | |
205 | PL_sv_root = (p); \ | |
206 | --PL_sv_count; \ | |
207 | } STMT_END | |
a0d0e21e | 208 | |
fba3b22e | 209 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
210 | #define uproot_SV(p) \ |
211 | STMT_START { \ | |
212 | (p) = PL_sv_root; \ | |
213 | PL_sv_root = (SV*)SvANY(p); \ | |
214 | ++PL_sv_count; \ | |
215 | } STMT_END | |
216 | ||
645c22ef | 217 | |
cac9b346 NC |
218 | /* make some more SVs by adding another arena */ |
219 | ||
220 | /* sv_mutex must be held while calling more_sv() */ | |
221 | STATIC SV* | |
222 | S_more_sv(pTHX) | |
223 | { | |
224 | SV* sv; | |
225 | ||
226 | if (PL_nice_chunk) { | |
227 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
228 | PL_nice_chunk = Nullch; | |
229 | PL_nice_chunk_size = 0; | |
230 | } | |
231 | else { | |
232 | char *chunk; /* must use New here to match call to */ | |
a02a5408 | 233 | Newx(chunk,PERL_ARENA_SIZE,char); /* Safefree() in sv_free_arenas() */ |
2e7ed132 | 234 | sv_add_arena(chunk, PERL_ARENA_SIZE, 0); |
cac9b346 NC |
235 | } |
236 | uproot_SV(sv); | |
237 | return sv; | |
238 | } | |
239 | ||
645c22ef DM |
240 | /* new_SV(): return a new, empty SV head */ |
241 | ||
eba0f806 DM |
242 | #ifdef DEBUG_LEAKING_SCALARS |
243 | /* provide a real function for a debugger to play with */ | |
244 | STATIC SV* | |
245 | S_new_SV(pTHX) | |
246 | { | |
247 | SV* sv; | |
248 | ||
249 | LOCK_SV_MUTEX; | |
250 | if (PL_sv_root) | |
251 | uproot_SV(sv); | |
252 | else | |
cac9b346 | 253 | sv = S_more_sv(aTHX); |
eba0f806 DM |
254 | UNLOCK_SV_MUTEX; |
255 | SvANY(sv) = 0; | |
256 | SvREFCNT(sv) = 1; | |
257 | SvFLAGS(sv) = 0; | |
fd0854ff DM |
258 | sv->sv_debug_optype = PL_op ? PL_op->op_type : 0; |
259 | sv->sv_debug_line = (U16) ((PL_copline == NOLINE) ? | |
260 | (PL_curcop ? CopLINE(PL_curcop) : 0) : PL_copline); | |
261 | sv->sv_debug_inpad = 0; | |
262 | sv->sv_debug_cloned = 0; | |
263 | # ifdef NETWARE | |
264 | sv->sv_debug_file = PL_curcop ? savepv(CopFILE(PL_curcop)): NULL; | |
265 | # else | |
266 | sv->sv_debug_file = PL_curcop ? savesharedpv(CopFILE(PL_curcop)): NULL; | |
267 | # endif | |
268 | ||
eba0f806 DM |
269 | return sv; |
270 | } | |
271 | # define new_SV(p) (p)=S_new_SV(aTHX) | |
272 | ||
273 | #else | |
274 | # define new_SV(p) \ | |
053fc874 GS |
275 | STMT_START { \ |
276 | LOCK_SV_MUTEX; \ | |
277 | if (PL_sv_root) \ | |
278 | uproot_SV(p); \ | |
279 | else \ | |
cac9b346 | 280 | (p) = S_more_sv(aTHX); \ |
053fc874 GS |
281 | UNLOCK_SV_MUTEX; \ |
282 | SvANY(p) = 0; \ | |
283 | SvREFCNT(p) = 1; \ | |
284 | SvFLAGS(p) = 0; \ | |
285 | } STMT_END | |
eba0f806 | 286 | #endif |
463ee0b2 | 287 | |
645c22ef DM |
288 | |
289 | /* del_SV(): return an empty SV head to the free list */ | |
290 | ||
a0d0e21e | 291 | #ifdef DEBUGGING |
4561caa4 | 292 | |
053fc874 GS |
293 | #define del_SV(p) \ |
294 | STMT_START { \ | |
295 | LOCK_SV_MUTEX; \ | |
aea4f609 | 296 | if (DEBUG_D_TEST) \ |
053fc874 GS |
297 | del_sv(p); \ |
298 | else \ | |
299 | plant_SV(p); \ | |
300 | UNLOCK_SV_MUTEX; \ | |
301 | } STMT_END | |
a0d0e21e | 302 | |
76e3520e | 303 | STATIC void |
cea2e8a9 | 304 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 305 | { |
aea4f609 | 306 | if (DEBUG_D_TEST) { |
4633a7c4 | 307 | SV* sva; |
a3b680e6 | 308 | bool ok = 0; |
3280af22 | 309 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
53c1dcc0 AL |
310 | const SV * const sv = sva + 1; |
311 | const SV * const svend = &sva[SvREFCNT(sva)]; | |
c0ff570e | 312 | if (p >= sv && p < svend) { |
a0d0e21e | 313 | ok = 1; |
c0ff570e NC |
314 | break; |
315 | } | |
a0d0e21e LW |
316 | } |
317 | if (!ok) { | |
0453d815 | 318 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 319 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
472d47bc SB |
320 | "Attempt to free non-arena SV: 0x%"UVxf |
321 | pTHX__FORMAT, PTR2UV(p) pTHX__VALUE); | |
a0d0e21e LW |
322 | return; |
323 | } | |
324 | } | |
4561caa4 | 325 | plant_SV(p); |
463ee0b2 | 326 | } |
a0d0e21e | 327 | |
4561caa4 CS |
328 | #else /* ! DEBUGGING */ |
329 | ||
330 | #define del_SV(p) plant_SV(p) | |
331 | ||
332 | #endif /* DEBUGGING */ | |
463ee0b2 | 333 | |
645c22ef DM |
334 | |
335 | /* | |
ccfc67b7 JH |
336 | =head1 SV Manipulation Functions |
337 | ||
645c22ef DM |
338 | =for apidoc sv_add_arena |
339 | ||
340 | Given a chunk of memory, link it to the head of the list of arenas, | |
341 | and split it into a list of free SVs. | |
342 | ||
343 | =cut | |
344 | */ | |
345 | ||
4633a7c4 | 346 | void |
864dbfa3 | 347 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 348 | { |
4633a7c4 | 349 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
350 | register SV* sv; |
351 | register SV* svend; | |
4633a7c4 LW |
352 | |
353 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 354 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
355 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
356 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
357 | ||
3280af22 NIS |
358 | PL_sv_arenaroot = sva; |
359 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
360 | |
361 | svend = &sva[SvREFCNT(sva) - 1]; | |
362 | sv = sva + 1; | |
463ee0b2 | 363 | while (sv < svend) { |
a0d0e21e | 364 | SvANY(sv) = (void *)(SV*)(sv + 1); |
03e36789 | 365 | #ifdef DEBUGGING |
978b032e | 366 | SvREFCNT(sv) = 0; |
03e36789 NC |
367 | #endif |
368 | /* Must always set typemask because it's awlays checked in on cleanup | |
369 | when the arenas are walked looking for objects. */ | |
8990e307 | 370 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
371 | sv++; |
372 | } | |
373 | SvANY(sv) = 0; | |
03e36789 NC |
374 | #ifdef DEBUGGING |
375 | SvREFCNT(sv) = 0; | |
376 | #endif | |
4633a7c4 LW |
377 | SvFLAGS(sv) = SVTYPEMASK; |
378 | } | |
379 | ||
055972dc DM |
380 | /* visit(): call the named function for each non-free SV in the arenas |
381 | * whose flags field matches the flags/mask args. */ | |
645c22ef | 382 | |
5226ed68 | 383 | STATIC I32 |
055972dc | 384 | S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask) |
8990e307 | 385 | { |
4633a7c4 | 386 | SV* sva; |
5226ed68 | 387 | I32 visited = 0; |
8990e307 | 388 | |
3280af22 | 389 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
53c1dcc0 | 390 | register const SV * const svend = &sva[SvREFCNT(sva)]; |
a3b680e6 | 391 | register SV* sv; |
4561caa4 | 392 | for (sv = sva + 1; sv < svend; ++sv) { |
055972dc DM |
393 | if (SvTYPE(sv) != SVTYPEMASK |
394 | && (sv->sv_flags & mask) == flags | |
395 | && SvREFCNT(sv)) | |
396 | { | |
acfe0abc | 397 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
398 | ++visited; |
399 | } | |
8990e307 LW |
400 | } |
401 | } | |
5226ed68 | 402 | return visited; |
8990e307 LW |
403 | } |
404 | ||
758a08c3 JH |
405 | #ifdef DEBUGGING |
406 | ||
645c22ef DM |
407 | /* called by sv_report_used() for each live SV */ |
408 | ||
409 | static void | |
acfe0abc | 410 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
411 | { |
412 | if (SvTYPE(sv) != SVTYPEMASK) { | |
413 | PerlIO_printf(Perl_debug_log, "****\n"); | |
414 | sv_dump(sv); | |
415 | } | |
416 | } | |
758a08c3 | 417 | #endif |
645c22ef DM |
418 | |
419 | /* | |
420 | =for apidoc sv_report_used | |
421 | ||
422 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
423 | ||
424 | =cut | |
425 | */ | |
426 | ||
8990e307 | 427 | void |
864dbfa3 | 428 | Perl_sv_report_used(pTHX) |
4561caa4 | 429 | { |
ff270d3a | 430 | #ifdef DEBUGGING |
055972dc | 431 | visit(do_report_used, 0, 0); |
ff270d3a | 432 | #endif |
4561caa4 CS |
433 | } |
434 | ||
645c22ef DM |
435 | /* called by sv_clean_objs() for each live SV */ |
436 | ||
437 | static void | |
e15faf7d | 438 | do_clean_objs(pTHX_ SV *ref) |
645c22ef | 439 | { |
e15faf7d | 440 | SV* target; |
645c22ef | 441 | |
e15faf7d NC |
442 | if (SvROK(ref) && SvOBJECT(target = SvRV(ref))) { |
443 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(ref))); | |
444 | if (SvWEAKREF(ref)) { | |
445 | sv_del_backref(target, ref); | |
446 | SvWEAKREF_off(ref); | |
447 | SvRV_set(ref, NULL); | |
645c22ef | 448 | } else { |
e15faf7d NC |
449 | SvROK_off(ref); |
450 | SvRV_set(ref, NULL); | |
451 | SvREFCNT_dec(target); | |
645c22ef DM |
452 | } |
453 | } | |
454 | ||
455 | /* XXX Might want to check arrays, etc. */ | |
456 | } | |
457 | ||
458 | /* called by sv_clean_objs() for each live SV */ | |
459 | ||
460 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
461 | static void | |
acfe0abc | 462 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
463 | { |
464 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
c69033f2 NC |
465 | if (( |
466 | #ifdef PERL_DONT_CREATE_GVSV | |
467 | GvSV(sv) && | |
468 | #endif | |
469 | SvOBJECT(GvSV(sv))) || | |
645c22ef DM |
470 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || |
471 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
472 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
473 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
474 | { | |
475 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
ec5f3c78 | 476 | SvFLAGS(sv) |= SVf_BREAK; |
645c22ef DM |
477 | SvREFCNT_dec(sv); |
478 | } | |
479 | } | |
480 | } | |
481 | #endif | |
482 | ||
483 | /* | |
484 | =for apidoc sv_clean_objs | |
485 | ||
486 | Attempt to destroy all objects not yet freed | |
487 | ||
488 | =cut | |
489 | */ | |
490 | ||
4561caa4 | 491 | void |
864dbfa3 | 492 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 493 | { |
3280af22 | 494 | PL_in_clean_objs = TRUE; |
055972dc | 495 | visit(do_clean_objs, SVf_ROK, SVf_ROK); |
4561caa4 | 496 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 497 | /* some barnacles may yet remain, clinging to typeglobs */ |
055972dc | 498 | visit(do_clean_named_objs, SVt_PVGV, SVTYPEMASK); |
4561caa4 | 499 | #endif |
3280af22 | 500 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
501 | } |
502 | ||
645c22ef DM |
503 | /* called by sv_clean_all() for each live SV */ |
504 | ||
505 | static void | |
acfe0abc | 506 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
507 | { |
508 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
509 | SvFLAGS(sv) |= SVf_BREAK; | |
0e705b3b DM |
510 | if (PL_comppad == (AV*)sv) { |
511 | PL_comppad = Nullav; | |
512 | PL_curpad = Null(SV**); | |
513 | } | |
645c22ef DM |
514 | SvREFCNT_dec(sv); |
515 | } | |
516 | ||
517 | /* | |
518 | =for apidoc sv_clean_all | |
519 | ||
520 | Decrement the refcnt of each remaining SV, possibly triggering a | |
521 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 522 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
523 | |
524 | =cut | |
525 | */ | |
526 | ||
5226ed68 | 527 | I32 |
864dbfa3 | 528 | Perl_sv_clean_all(pTHX) |
8990e307 | 529 | { |
5226ed68 | 530 | I32 cleaned; |
3280af22 | 531 | PL_in_clean_all = TRUE; |
055972dc | 532 | cleaned = visit(do_clean_all, 0,0); |
3280af22 | 533 | PL_in_clean_all = FALSE; |
5226ed68 | 534 | return cleaned; |
8990e307 | 535 | } |
463ee0b2 | 536 | |
7cfef17e NC |
537 | static void |
538 | S_free_arena(pTHX_ void **root) { | |
539 | while (root) { | |
1b6737cc | 540 | void ** const next = *(void **)root; |
7cfef17e NC |
541 | Safefree(root); |
542 | root = next; | |
543 | } | |
544 | } | |
545 | ||
645c22ef DM |
546 | /* |
547 | =for apidoc sv_free_arenas | |
548 | ||
549 | Deallocate the memory used by all arenas. Note that all the individual SV | |
550 | heads and bodies within the arenas must already have been freed. | |
551 | ||
552 | =cut | |
553 | */ | |
554 | ||
7cfef17e NC |
555 | #define free_arena(name) \ |
556 | STMT_START { \ | |
557 | S_free_arena(aTHX_ (void**) PL_ ## name ## _arenaroot); \ | |
558 | PL_ ## name ## _arenaroot = 0; \ | |
559 | PL_ ## name ## _root = 0; \ | |
560 | } STMT_END | |
561 | ||
4633a7c4 | 562 | void |
864dbfa3 | 563 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
564 | { |
565 | SV* sva; | |
566 | SV* svanext; | |
567 | ||
568 | /* Free arenas here, but be careful about fake ones. (We assume | |
569 | contiguity of the fake ones with the corresponding real ones.) */ | |
570 | ||
3280af22 | 571 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
572 | svanext = (SV*) SvANY(sva); |
573 | while (svanext && SvFAKE(svanext)) | |
574 | svanext = (SV*) SvANY(svanext); | |
575 | ||
576 | if (!SvFAKE(sva)) | |
1df70142 | 577 | Safefree(sva); |
4633a7c4 | 578 | } |
8b4f5e17 | 579 | |
7cfef17e NC |
580 | free_arena(xnv); |
581 | free_arena(xpv); | |
582 | free_arena(xpviv); | |
583 | free_arena(xpvnv); | |
584 | free_arena(xpvcv); | |
585 | free_arena(xpvav); | |
586 | free_arena(xpvhv); | |
587 | free_arena(xpvmg); | |
588 | free_arena(xpvgv); | |
589 | free_arena(xpvlv); | |
590 | free_arena(xpvbm); | |
591 | free_arena(he); | |
592 | #if defined(USE_ITHREADS) | |
593 | free_arena(pte); | |
594 | #endif | |
612f20c3 | 595 | |
43c5f42d | 596 | Safefree(PL_nice_chunk); |
3280af22 NIS |
597 | PL_nice_chunk = Nullch; |
598 | PL_nice_chunk_size = 0; | |
599 | PL_sv_arenaroot = 0; | |
600 | PL_sv_root = 0; | |
4633a7c4 LW |
601 | } |
602 | ||
29489e7c DM |
603 | /* --------------------------------------------------------------------- |
604 | * | |
605 | * support functions for report_uninit() | |
606 | */ | |
607 | ||
608 | /* the maxiumum size of array or hash where we will scan looking | |
609 | * for the undefined element that triggered the warning */ | |
610 | ||
611 | #define FUV_MAX_SEARCH_SIZE 1000 | |
612 | ||
613 | /* Look for an entry in the hash whose value has the same SV as val; | |
614 | * If so, return a mortal copy of the key. */ | |
615 | ||
616 | STATIC SV* | |
617 | S_find_hash_subscript(pTHX_ HV *hv, SV* val) | |
618 | { | |
27da23d5 | 619 | dVAR; |
29489e7c | 620 | register HE **array; |
29489e7c DM |
621 | I32 i; |
622 | ||
623 | if (!hv || SvMAGICAL(hv) || !HvARRAY(hv) || | |
624 | (HvTOTALKEYS(hv) > FUV_MAX_SEARCH_SIZE)) | |
625 | return Nullsv; | |
626 | ||
627 | array = HvARRAY(hv); | |
628 | ||
629 | for (i=HvMAX(hv); i>0; i--) { | |
f54cb97a | 630 | register HE *entry; |
29489e7c DM |
631 | for (entry = array[i]; entry; entry = HeNEXT(entry)) { |
632 | if (HeVAL(entry) != val) | |
633 | continue; | |
634 | if ( HeVAL(entry) == &PL_sv_undef || | |
635 | HeVAL(entry) == &PL_sv_placeholder) | |
636 | continue; | |
637 | if (!HeKEY(entry)) | |
638 | return Nullsv; | |
639 | if (HeKLEN(entry) == HEf_SVKEY) | |
640 | return sv_mortalcopy(HeKEY_sv(entry)); | |
641 | return sv_2mortal(newSVpvn(HeKEY(entry), HeKLEN(entry))); | |
642 | } | |
643 | } | |
644 | return Nullsv; | |
645 | } | |
646 | ||
647 | /* Look for an entry in the array whose value has the same SV as val; | |
648 | * If so, return the index, otherwise return -1. */ | |
649 | ||
650 | STATIC I32 | |
651 | S_find_array_subscript(pTHX_ AV *av, SV* val) | |
652 | { | |
653 | SV** svp; | |
654 | I32 i; | |
655 | if (!av || SvMAGICAL(av) || !AvARRAY(av) || | |
656 | (AvFILLp(av) > FUV_MAX_SEARCH_SIZE)) | |
657 | return -1; | |
658 | ||
659 | svp = AvARRAY(av); | |
660 | for (i=AvFILLp(av); i>=0; i--) { | |
661 | if (svp[i] == val && svp[i] != &PL_sv_undef) | |
662 | return i; | |
663 | } | |
664 | return -1; | |
665 | } | |
666 | ||
667 | /* S_varname(): return the name of a variable, optionally with a subscript. | |
668 | * If gv is non-zero, use the name of that global, along with gvtype (one | |
669 | * of "$", "@", "%"); otherwise use the name of the lexical at pad offset | |
670 | * targ. Depending on the value of the subscript_type flag, return: | |
671 | */ | |
672 | ||
673 | #define FUV_SUBSCRIPT_NONE 1 /* "@foo" */ | |
674 | #define FUV_SUBSCRIPT_ARRAY 2 /* "$foo[aindex]" */ | |
675 | #define FUV_SUBSCRIPT_HASH 3 /* "$foo{keyname}" */ | |
676 | #define FUV_SUBSCRIPT_WITHIN 4 /* "within @foo" */ | |
677 | ||
678 | STATIC SV* | |
be2ef075 | 679 | S_varname(pTHX_ GV *gv, const char gvtype, PADOFFSET targ, |
29489e7c DM |
680 | SV* keyname, I32 aindex, int subscript_type) |
681 | { | |
29489e7c | 682 | |
a3b680e6 | 683 | SV * const name = sv_newmortal(); |
29489e7c DM |
684 | if (gv) { |
685 | ||
686 | /* simulate gv_fullname4(), but add literal '^' for $^FOO names | |
687 | * XXX get rid of all this if gv_fullnameX() ever supports this | |
688 | * directly */ | |
689 | ||
bfed75c6 | 690 | const char *p; |
53c1dcc0 | 691 | HV * const hv = GvSTASH(gv); |
29489e7c DM |
692 | if (!hv) |
693 | p = "???"; | |
bfcb3514 | 694 | else if (!(p=HvNAME_get(hv))) |
29489e7c | 695 | p = "__ANON__"; |
be2ef075 NC |
696 | if (strEQ(p, "main")) |
697 | sv_setpvn(name, &gvtype, 1); | |
698 | else | |
699 | Perl_sv_setpvf(aTHX_ name, "%c%s::", gvtype, p); | |
700 | ||
29489e7c DM |
701 | if (GvNAMELEN(gv)>= 1 && |
702 | ((unsigned int)*GvNAME(gv)) <= 26) | |
703 | { /* handle $^FOO */ | |
704 | Perl_sv_catpvf(aTHX_ name,"^%c", *GvNAME(gv) + 'A' - 1); | |
705 | sv_catpvn(name,GvNAME(gv)+1,GvNAMELEN(gv)-1); | |
706 | } | |
707 | else | |
708 | sv_catpvn(name,GvNAME(gv),GvNAMELEN(gv)); | |
709 | } | |
710 | else { | |
53c1dcc0 AL |
711 | U32 unused; |
712 | CV * const cv = find_runcv(&unused); | |
713 | SV *sv; | |
714 | AV *av; | |
715 | ||
29489e7c | 716 | if (!cv || !CvPADLIST(cv)) |
1b6737cc | 717 | return Nullsv; |
29489e7c DM |
718 | av = (AV*)(*av_fetch(CvPADLIST(cv), 0, FALSE)); |
719 | sv = *av_fetch(av, targ, FALSE); | |
720 | /* SvLEN in a pad name is not to be trusted */ | |
f9926b10 | 721 | sv_setpv(name, SvPV_nolen_const(sv)); |
29489e7c DM |
722 | } |
723 | ||
724 | if (subscript_type == FUV_SUBSCRIPT_HASH) { | |
1b6737cc | 725 | SV * const sv = NEWSV(0,0); |
29489e7c | 726 | *SvPVX(name) = '$'; |
29489e7c | 727 | Perl_sv_catpvf(aTHX_ name, "{%s}", |
3f7c398e | 728 | pv_display(sv,SvPVX_const(keyname), SvCUR(keyname), 0, 32)); |
29489e7c DM |
729 | SvREFCNT_dec(sv); |
730 | } | |
731 | else if (subscript_type == FUV_SUBSCRIPT_ARRAY) { | |
732 | *SvPVX(name) = '$'; | |
265a12b8 | 733 | Perl_sv_catpvf(aTHX_ name, "[%"IVdf"]", (IV)aindex); |
29489e7c DM |
734 | } |
735 | else if (subscript_type == FUV_SUBSCRIPT_WITHIN) | |
736 | sv_insert(name, 0, 0, "within ", 7); | |
737 | ||
738 | return name; | |
739 | } | |
740 | ||
741 | ||
742 | /* | |
743 | =for apidoc find_uninit_var | |
744 | ||
745 | Find the name of the undefined variable (if any) that caused the operator o | |
746 | to issue a "Use of uninitialized value" warning. | |
747 | If match is true, only return a name if it's value matches uninit_sv. | |
748 | So roughly speaking, if a unary operator (such as OP_COS) generates a | |
749 | warning, then following the direct child of the op may yield an | |
750 | OP_PADSV or OP_GV that gives the name of the undefined variable. On the | |
751 | other hand, with OP_ADD there are two branches to follow, so we only print | |
752 | the variable name if we get an exact match. | |
753 | ||
754 | The name is returned as a mortal SV. | |
755 | ||
756 | Assumes that PL_op is the op that originally triggered the error, and that | |
757 | PL_comppad/PL_curpad points to the currently executing pad. | |
758 | ||
759 | =cut | |
760 | */ | |
761 | ||
762 | STATIC SV * | |
763 | S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match) | |
764 | { | |
27da23d5 | 765 | dVAR; |
29489e7c DM |
766 | SV *sv; |
767 | AV *av; | |
29489e7c DM |
768 | GV *gv; |
769 | OP *o, *o2, *kid; | |
770 | ||
771 | if (!obase || (match && (!uninit_sv || uninit_sv == &PL_sv_undef || | |
772 | uninit_sv == &PL_sv_placeholder))) | |
773 | return Nullsv; | |
774 | ||
775 | switch (obase->op_type) { | |
776 | ||
777 | case OP_RV2AV: | |
778 | case OP_RV2HV: | |
779 | case OP_PADAV: | |
780 | case OP_PADHV: | |
781 | { | |
f54cb97a AL |
782 | const bool pad = (obase->op_type == OP_PADAV || obase->op_type == OP_PADHV); |
783 | const bool hash = (obase->op_type == OP_PADHV || obase->op_type == OP_RV2HV); | |
112dcc46 RGS |
784 | I32 index = 0; |
785 | SV *keysv = Nullsv; | |
29489e7c DM |
786 | int subscript_type = FUV_SUBSCRIPT_WITHIN; |
787 | ||
788 | if (pad) { /* @lex, %lex */ | |
789 | sv = PAD_SVl(obase->op_targ); | |
790 | gv = Nullgv; | |
791 | } | |
792 | else { | |
793 | if (cUNOPx(obase)->op_first->op_type == OP_GV) { | |
794 | /* @global, %global */ | |
795 | gv = cGVOPx_gv(cUNOPx(obase)->op_first); | |
796 | if (!gv) | |
797 | break; | |
798 | sv = hash ? (SV*)GvHV(gv): (SV*)GvAV(gv); | |
799 | } | |
800 | else /* @{expr}, %{expr} */ | |
801 | return find_uninit_var(cUNOPx(obase)->op_first, | |
802 | uninit_sv, match); | |
803 | } | |
804 | ||
805 | /* attempt to find a match within the aggregate */ | |
806 | if (hash) { | |
807 | keysv = S_find_hash_subscript(aTHX_ (HV*)sv, uninit_sv); | |
808 | if (keysv) | |
809 | subscript_type = FUV_SUBSCRIPT_HASH; | |
810 | } | |
811 | else { | |
812 | index = S_find_array_subscript(aTHX_ (AV*)sv, uninit_sv); | |
813 | if (index >= 0) | |
814 | subscript_type = FUV_SUBSCRIPT_ARRAY; | |
815 | } | |
816 | ||
817 | if (match && subscript_type == FUV_SUBSCRIPT_WITHIN) | |
818 | break; | |
819 | ||
be2ef075 | 820 | return varname(gv, hash ? '%' : '@', obase->op_targ, |
29489e7c DM |
821 | keysv, index, subscript_type); |
822 | } | |
823 | ||
824 | case OP_PADSV: | |
825 | if (match && PAD_SVl(obase->op_targ) != uninit_sv) | |
826 | break; | |
be2ef075 | 827 | return varname(Nullgv, '$', obase->op_targ, |
29489e7c DM |
828 | Nullsv, 0, FUV_SUBSCRIPT_NONE); |
829 | ||
830 | case OP_GVSV: | |
831 | gv = cGVOPx_gv(obase); | |
832 | if (!gv || (match && GvSV(gv) != uninit_sv)) | |
833 | break; | |
be2ef075 | 834 | return varname(gv, '$', 0, Nullsv, 0, FUV_SUBSCRIPT_NONE); |
29489e7c DM |
835 | |
836 | case OP_AELEMFAST: | |
837 | if (obase->op_flags & OPf_SPECIAL) { /* lexical array */ | |
838 | if (match) { | |
1b6737cc | 839 | SV **svp; |
29489e7c DM |
840 | av = (AV*)PAD_SV(obase->op_targ); |
841 | if (!av || SvRMAGICAL(av)) | |
842 | break; | |
843 | svp = av_fetch(av, (I32)obase->op_private, FALSE); | |
844 | if (!svp || *svp != uninit_sv) | |
845 | break; | |
846 | } | |
be2ef075 | 847 | return varname(Nullgv, '$', obase->op_targ, |
29489e7c DM |
848 | Nullsv, (I32)obase->op_private, FUV_SUBSCRIPT_ARRAY); |
849 | } | |
850 | else { | |
851 | gv = cGVOPx_gv(obase); | |
852 | if (!gv) | |
853 | break; | |
854 | if (match) { | |
1b6737cc | 855 | SV **svp; |
29489e7c DM |
856 | av = GvAV(gv); |
857 | if (!av || SvRMAGICAL(av)) | |
858 | break; | |
859 | svp = av_fetch(av, (I32)obase->op_private, FALSE); | |
860 | if (!svp || *svp != uninit_sv) | |
861 | break; | |
862 | } | |
be2ef075 | 863 | return varname(gv, '$', 0, |
29489e7c DM |
864 | Nullsv, (I32)obase->op_private, FUV_SUBSCRIPT_ARRAY); |
865 | } | |
866 | break; | |
867 | ||
868 | case OP_EXISTS: | |
869 | o = cUNOPx(obase)->op_first; | |
870 | if (!o || o->op_type != OP_NULL || | |
871 | ! (o->op_targ == OP_AELEM || o->op_targ == OP_HELEM)) | |
872 | break; | |
873 | return find_uninit_var(cBINOPo->op_last, uninit_sv, match); | |
874 | ||
875 | case OP_AELEM: | |
876 | case OP_HELEM: | |
877 | if (PL_op == obase) | |
878 | /* $a[uninit_expr] or $h{uninit_expr} */ | |
879 | return find_uninit_var(cBINOPx(obase)->op_last, uninit_sv, match); | |
880 | ||
881 | gv = Nullgv; | |
882 | o = cBINOPx(obase)->op_first; | |
883 | kid = cBINOPx(obase)->op_last; | |
884 | ||
885 | /* get the av or hv, and optionally the gv */ | |
886 | sv = Nullsv; | |
887 | if (o->op_type == OP_PADAV || o->op_type == OP_PADHV) { | |
888 | sv = PAD_SV(o->op_targ); | |
889 | } | |
890 | else if ((o->op_type == OP_RV2AV || o->op_type == OP_RV2HV) | |
891 | && cUNOPo->op_first->op_type == OP_GV) | |
892 | { | |
893 | gv = cGVOPx_gv(cUNOPo->op_first); | |
894 | if (!gv) | |
895 | break; | |
896 | sv = o->op_type == OP_RV2HV ? (SV*)GvHV(gv) : (SV*)GvAV(gv); | |
897 | } | |
898 | if (!sv) | |
899 | break; | |
900 | ||
901 | if (kid && kid->op_type == OP_CONST && SvOK(cSVOPx_sv(kid))) { | |
902 | /* index is constant */ | |
903 | if (match) { | |
904 | if (SvMAGICAL(sv)) | |
905 | break; | |
906 | if (obase->op_type == OP_HELEM) { | |
907 | HE* he = hv_fetch_ent((HV*)sv, cSVOPx_sv(kid), 0, 0); | |
908 | if (!he || HeVAL(he) != uninit_sv) | |
909 | break; | |
910 | } | |
911 | else { | |
1b6737cc | 912 | SV ** const svp = av_fetch((AV*)sv, SvIV(cSVOPx_sv(kid)), FALSE); |
29489e7c DM |
913 | if (!svp || *svp != uninit_sv) |
914 | break; | |
915 | } | |
916 | } | |
917 | if (obase->op_type == OP_HELEM) | |
be2ef075 | 918 | return varname(gv, '%', o->op_targ, |
29489e7c DM |
919 | cSVOPx_sv(kid), 0, FUV_SUBSCRIPT_HASH); |
920 | else | |
be2ef075 | 921 | return varname(gv, '@', o->op_targ, Nullsv, |
29489e7c DM |
922 | SvIV(cSVOPx_sv(kid)), FUV_SUBSCRIPT_ARRAY); |
923 | ; | |
924 | } | |
925 | else { | |
926 | /* index is an expression; | |
927 | * attempt to find a match within the aggregate */ | |
928 | if (obase->op_type == OP_HELEM) { | |
53c1dcc0 | 929 | SV * const keysv = S_find_hash_subscript(aTHX_ (HV*)sv, uninit_sv); |
29489e7c | 930 | if (keysv) |
be2ef075 | 931 | return varname(gv, '%', o->op_targ, |
29489e7c DM |
932 | keysv, 0, FUV_SUBSCRIPT_HASH); |
933 | } | |
934 | else { | |
f54cb97a | 935 | const I32 index = S_find_array_subscript(aTHX_ (AV*)sv, uninit_sv); |
29489e7c | 936 | if (index >= 0) |
be2ef075 | 937 | return varname(gv, '@', o->op_targ, |
29489e7c DM |
938 | Nullsv, index, FUV_SUBSCRIPT_ARRAY); |
939 | } | |
940 | if (match) | |
941 | break; | |
1b6737cc | 942 | return varname(gv, |
29489e7c | 943 | (o->op_type == OP_PADAV || o->op_type == OP_RV2AV) |
be2ef075 | 944 | ? '@' : '%', |
29489e7c DM |
945 | o->op_targ, Nullsv, 0, FUV_SUBSCRIPT_WITHIN); |
946 | } | |
947 | ||
948 | break; | |
949 | ||
950 | case OP_AASSIGN: | |
951 | /* only examine RHS */ | |
952 | return find_uninit_var(cBINOPx(obase)->op_first, uninit_sv, match); | |
953 | ||
954 | case OP_OPEN: | |
955 | o = cUNOPx(obase)->op_first; | |
956 | if (o->op_type == OP_PUSHMARK) | |
957 | o = o->op_sibling; | |
958 | ||
959 | if (!o->op_sibling) { | |
960 | /* one-arg version of open is highly magical */ | |
961 | ||
962 | if (o->op_type == OP_GV) { /* open FOO; */ | |
963 | gv = cGVOPx_gv(o); | |
964 | if (match && GvSV(gv) != uninit_sv) | |
965 | break; | |
be2ef075 | 966 | return varname(gv, '$', 0, |
29489e7c DM |
967 | Nullsv, 0, FUV_SUBSCRIPT_NONE); |
968 | } | |
969 | /* other possibilities not handled are: | |
970 | * open $x; or open my $x; should return '${*$x}' | |
971 | * open expr; should return '$'.expr ideally | |
972 | */ | |
973 | break; | |
974 | } | |
975 | goto do_op; | |
976 | ||
977 | /* ops where $_ may be an implicit arg */ | |
978 | case OP_TRANS: | |
979 | case OP_SUBST: | |
980 | case OP_MATCH: | |
981 | if ( !(obase->op_flags & OPf_STACKED)) { | |
982 | if (uninit_sv == ((obase->op_private & OPpTARGET_MY) | |
983 | ? PAD_SVl(obase->op_targ) | |
984 | : DEFSV)) | |
985 | { | |
986 | sv = sv_newmortal(); | |
616d8c9c | 987 | sv_setpvn(sv, "$_", 2); |
29489e7c DM |
988 | return sv; |
989 | } | |
990 | } | |
991 | goto do_op; | |
992 | ||
993 | case OP_PRTF: | |
994 | case OP_PRINT: | |
995 | /* skip filehandle as it can't produce 'undef' warning */ | |
996 | o = cUNOPx(obase)->op_first; | |
997 | if ((obase->op_flags & OPf_STACKED) && o->op_type == OP_PUSHMARK) | |
998 | o = o->op_sibling->op_sibling; | |
999 | goto do_op2; | |
1000 | ||
1001 | ||
e21bd382 | 1002 | case OP_RV2SV: |
29489e7c DM |
1003 | case OP_CUSTOM: |
1004 | case OP_ENTERSUB: | |
1005 | match = 1; /* XS or custom code could trigger random warnings */ | |
1006 | goto do_op; | |
1007 | ||
1008 | case OP_SCHOMP: | |
1009 | case OP_CHOMP: | |
1010 | if (SvROK(PL_rs) && uninit_sv == SvRV(PL_rs)) | |
d0043bd1 | 1011 | return sv_2mortal(newSVpvn("${$/}", 5)); |
29489e7c DM |
1012 | /* FALL THROUGH */ |
1013 | ||
1014 | default: | |
1015 | do_op: | |
1016 | if (!(obase->op_flags & OPf_KIDS)) | |
1017 | break; | |
1018 | o = cUNOPx(obase)->op_first; | |
1019 | ||
1020 | do_op2: | |
1021 | if (!o) | |
1022 | break; | |
1023 | ||
1024 | /* if all except one arg are constant, or have no side-effects, | |
1025 | * or are optimized away, then it's unambiguous */ | |
1026 | o2 = Nullop; | |
1027 | for (kid=o; kid; kid = kid->op_sibling) { | |
1028 | if (kid && | |
1029 | ( (kid->op_type == OP_CONST && SvOK(cSVOPx_sv(kid))) | |
1030 | || (kid->op_type == OP_NULL && ! (kid->op_flags & OPf_KIDS)) | |
1031 | || (kid->op_type == OP_PUSHMARK) | |
1032 | ) | |
1033 | ) | |
1034 | continue; | |
1035 | if (o2) { /* more than one found */ | |
1036 | o2 = Nullop; | |
1037 | break; | |
1038 | } | |
1039 | o2 = kid; | |
1040 | } | |
1041 | if (o2) | |
1042 | return find_uninit_var(o2, uninit_sv, match); | |
1043 | ||
1044 | /* scan all args */ | |
1045 | while (o) { | |
1046 | sv = find_uninit_var(o, uninit_sv, 1); | |
1047 | if (sv) | |
1048 | return sv; | |
1049 | o = o->op_sibling; | |
1050 | } | |
1051 | break; | |
1052 | } | |
1053 | return Nullsv; | |
1054 | } | |
1055 | ||
1056 | ||
645c22ef DM |
1057 | /* |
1058 | =for apidoc report_uninit | |
1059 | ||
1060 | Print appropriate "Use of uninitialized variable" warning | |
1061 | ||
1062 | =cut | |
1063 | */ | |
1064 | ||
1d7c1841 | 1065 | void |
29489e7c DM |
1066 | Perl_report_uninit(pTHX_ SV* uninit_sv) |
1067 | { | |
1068 | if (PL_op) { | |
112dcc46 | 1069 | SV* varname = Nullsv; |
29489e7c DM |
1070 | if (uninit_sv) { |
1071 | varname = find_uninit_var(PL_op, uninit_sv,0); | |
1072 | if (varname) | |
1073 | sv_insert(varname, 0, 0, " ", 1); | |
1074 | } | |
9014280d | 1075 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
93524f2b | 1076 | varname ? SvPV_nolen_const(varname) : "", |
29489e7c DM |
1077 | " in ", OP_DESC(PL_op)); |
1078 | } | |
1d7c1841 | 1079 | else |
29489e7c DM |
1080 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
1081 | "", "", ""); | |
1d7c1841 GS |
1082 | } |
1083 | ||
de042e1d | 1084 | STATIC void * |
e3bbdc67 | 1085 | S_more_bodies (pTHX_ void **arena_root, void **root, size_t size) |
cac9b346 | 1086 | { |
e3bbdc67 NC |
1087 | char *start; |
1088 | const char *end; | |
53c1dcc0 | 1089 | const size_t count = PERL_ARENA_SIZE/size; |
a02a5408 | 1090 | Newx(start, count*size, char); |
e3bbdc67 NC |
1091 | *((void **) start) = *arena_root; |
1092 | *arena_root = (void *)start; | |
cac9b346 | 1093 | |
e3bbdc67 | 1094 | end = start + (count-1) * size; |
cac9b346 | 1095 | |
e3bbdc67 NC |
1096 | /* The initial slot is used to link the arenas together, so it isn't to be |
1097 | linked into the list of ready-to-use bodies. */ | |
cac9b346 | 1098 | |
e3bbdc67 | 1099 | start += size; |
cac9b346 | 1100 | |
e3bbdc67 | 1101 | *root = (void *)start; |
cac9b346 | 1102 | |
e3bbdc67 | 1103 | while (start < end) { |
53c1dcc0 | 1104 | char * const next = start + size; |
e3bbdc67 NC |
1105 | *(void**) start = (void *)next; |
1106 | start = next; | |
cac9b346 | 1107 | } |
e3bbdc67 | 1108 | *(void **)start = 0; |
de042e1d NC |
1109 | |
1110 | return *root; | |
cac9b346 NC |
1111 | } |
1112 | ||
aeb18a1e | 1113 | /* grab a new thing from the free list, allocating more if necessary */ |
645c22ef | 1114 | |
30f9da9e | 1115 | /* 1st, the inline version */ |
08742458 NC |
1116 | |
1117 | #define new_body_inline(xpv, arena_root, root, size) \ | |
1118 | STMT_START { \ | |
1119 | LOCK_SV_MUTEX; \ | |
1120 | xpv = *((void **)(root)) \ | |
1121 | ? *((void **)(root)) : S_more_bodies(aTHX_ arena_root, root, size); \ | |
1122 | *(root) = *(void**)(xpv); \ | |
1123 | UNLOCK_SV_MUTEX; \ | |
1124 | } STMT_END | |
1125 | ||
30f9da9e JC |
1126 | /* now use the inline version in the proper function */ |
1127 | ||
1128 | STATIC void * | |
1129 | S_new_body(pTHX_ void **arena_root, void **root, size_t size) | |
1130 | { | |
1131 | void *xpv; | |
1132 | new_body_inline(xpv, arena_root, root, size); | |
1133 | return xpv; | |
1134 | } | |
1135 | ||
aeb18a1e | 1136 | /* return a thing to the free list */ |
645c22ef | 1137 | |
cb4415b8 NC |
1138 | #define del_body(thing, root) \ |
1139 | STMT_START { \ | |
49c04cc7 | 1140 | void **thing_copy = (void **)thing; \ |
cb4415b8 | 1141 | LOCK_SV_MUTEX; \ |
49c04cc7 NC |
1142 | *thing_copy = *root; \ |
1143 | *root = (void*)thing_copy; \ | |
cb4415b8 NC |
1144 | UNLOCK_SV_MUTEX; \ |
1145 | } STMT_END | |
932e9ff9 | 1146 | |
aeb18a1e NC |
1147 | /* Conventionally we simply malloc() a big block of memory, then divide it |
1148 | up into lots of the thing that we're allocating. | |
645c22ef | 1149 | |
aeb18a1e NC |
1150 | This macro will expand to call to S_new_body. So for XPVBM (with ithreads), |
1151 | it would become | |
932e9ff9 | 1152 | |
aeb18a1e NC |
1153 | S_new_body(my_perl, (void**)&(my_perl->Ixpvbm_arenaroot), |
1154 | (void**)&(my_perl->Ixpvbm_root), sizeof(XPVBM), 0) | |
1155 | */ | |
645c22ef | 1156 | |
08742458 | 1157 | #define new_body_type(TYPE,lctype) \ |
aeb18a1e NC |
1158 | S_new_body(aTHX_ (void**)&PL_ ## lctype ## _arenaroot, \ |
1159 | (void**)&PL_ ## lctype ## _root, \ | |
dd690478 NC |
1160 | sizeof(TYPE)) |
1161 | ||
cb4415b8 NC |
1162 | #define del_body_type(p,TYPE,lctype) \ |
1163 | del_body((void*)p, (void**)&PL_ ## lctype ## _root) | |
aeb18a1e NC |
1164 | |
1165 | /* But for some types, we cheat. The type starts with some members that are | |
1166 | never accessed. So we allocate the substructure, starting at the first used | |
1167 | member, then adjust the pointer back in memory by the size of the bit not | |
1168 | allocated, so it's as if we allocated the full structure. | |
1169 | (But things will all go boom if you write to the part that is "not there", | |
1170 | because you'll be overwriting the last members of the preceding structure | |
1171 | in memory.) | |
1172 | ||
1173 | We calculate the correction using the STRUCT_OFFSET macro. For example, if | |
1174 | xpv_allocated is the same structure as XPV then the two OFFSETs sum to zero, | |
1175 | and the pointer is unchanged. If the allocated structure is smaller (no | |
1176 | initial NV actually allocated) then the net effect is to subtract the size | |
1177 | of the NV from the pointer, to return a new pointer as if an initial NV were | |
1178 | actually allocated. | |
1179 | ||
1180 | This is the same trick as was used for NV and IV bodies. Ironically it | |
1181 | doesn't need to be used for NV bodies any more, because NV is now at the | |
1182 | start of the structure. IV bodies don't need it either, because they are | |
1183 | no longer allocated. */ | |
1184 | ||
1185 | #define new_body_allocated(TYPE,lctype,member) \ | |
dd690478 NC |
1186 | (void*)((char*)S_new_body(aTHX_ (void**)&PL_ ## lctype ## _arenaroot, \ |
1187 | (void**)&PL_ ## lctype ## _root, \ | |
1188 | sizeof(lctype ## _allocated)) - \ | |
1189 | STRUCT_OFFSET(TYPE, member) \ | |
1190 | + STRUCT_OFFSET(lctype ## _allocated, member)) | |
aeb18a1e NC |
1191 | |
1192 | ||
aeb18a1e | 1193 | #define del_body_allocated(p,TYPE,lctype,member) \ |
cb4415b8 NC |
1194 | del_body((void*)((char*)p + STRUCT_OFFSET(TYPE, member) \ |
1195 | - STRUCT_OFFSET(lctype ## _allocated, member)), \ | |
1196 | (void**)&PL_ ## lctype ## _root) | |
932e9ff9 | 1197 | |
7bab3ede MB |
1198 | #define my_safemalloc(s) (void*)safemalloc(s) |
1199 | #define my_safefree(p) safefree((char*)p) | |
463ee0b2 | 1200 | |
d33b2eba | 1201 | #ifdef PURIFY |
463ee0b2 | 1202 | |
d33b2eba GS |
1203 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1204 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1205 | |
d33b2eba GS |
1206 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1207 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1208 | |
d33b2eba GS |
1209 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1210 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1211 | |
d33b2eba GS |
1212 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1213 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1214 | |
d33b2eba GS |
1215 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1216 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1217 | |
d33b2eba GS |
1218 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1219 | #define del_XPVAV(p) my_safefree(p) | |
1220 | ||
1221 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1222 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1223 | |
d33b2eba GS |
1224 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1225 | #define del_XPVMG(p) my_safefree(p) | |
1226 | ||
727879eb NC |
1227 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1228 | #define del_XPVGV(p) my_safefree(p) | |
1229 | ||
d33b2eba GS |
1230 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) |
1231 | #define del_XPVLV(p) my_safefree(p) | |
1232 | ||
1233 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1234 | #define del_XPVBM(p) my_safefree(p) | |
1235 | ||
1236 | #else /* !PURIFY */ | |
1237 | ||
08742458 | 1238 | #define new_XNV() new_body_type(NV, xnv) |
cb4415b8 | 1239 | #define del_XNV(p) del_body_type(p, NV, xnv) |
9b94d1dd | 1240 | |
aeb18a1e NC |
1241 | #define new_XPV() new_body_allocated(XPV, xpv, xpv_cur) |
1242 | #define del_XPV(p) del_body_allocated(p, XPV, xpv, xpv_cur) | |
d33b2eba | 1243 | |
aeb18a1e NC |
1244 | #define new_XPVIV() new_body_allocated(XPVIV, xpviv, xpv_cur) |
1245 | #define del_XPVIV(p) del_body_allocated(p, XPVIV, xpviv, xpv_cur) | |
d33b2eba | 1246 | |
08742458 | 1247 | #define new_XPVNV() new_body_type(XPVNV, xpvnv) |
cb4415b8 | 1248 | #define del_XPVNV(p) del_body_type(p, XPVNV, xpvnv) |
d33b2eba | 1249 | |
08742458 | 1250 | #define new_XPVCV() new_body_type(XPVCV, xpvcv) |
cb4415b8 | 1251 | #define del_XPVCV(p) del_body_type(p, XPVCV, xpvcv) |
d33b2eba | 1252 | |
aeb18a1e NC |
1253 | #define new_XPVAV() new_body_allocated(XPVAV, xpvav, xav_fill) |
1254 | #define del_XPVAV(p) del_body_allocated(p, XPVAV, xpvav, xav_fill) | |
d33b2eba | 1255 | |
aeb18a1e NC |
1256 | #define new_XPVHV() new_body_allocated(XPVHV, xpvhv, xhv_fill) |
1257 | #define del_XPVHV(p) del_body_allocated(p, XPVHV, xpvhv, xhv_fill) | |
1c846c1f | 1258 | |
08742458 | 1259 | #define new_XPVMG() new_body_type(XPVMG, xpvmg) |
cb4415b8 | 1260 | #define del_XPVMG(p) del_body_type(p, XPVMG, xpvmg) |
d33b2eba | 1261 | |
08742458 | 1262 | #define new_XPVGV() new_body_type(XPVGV, xpvgv) |
cb4415b8 | 1263 | #define del_XPVGV(p) del_body_type(p, XPVGV, xpvgv) |
727879eb | 1264 | |
08742458 | 1265 | #define new_XPVLV() new_body_type(XPVLV, xpvlv) |
cb4415b8 | 1266 | #define del_XPVLV(p) del_body_type(p, XPVLV, xpvlv) |
d33b2eba | 1267 | |
08742458 | 1268 | #define new_XPVBM() new_body_type(XPVBM, xpvbm) |
cb4415b8 | 1269 | #define del_XPVBM(p) del_body_type(p, XPVBM, xpvbm) |
d33b2eba GS |
1270 | |
1271 | #endif /* PURIFY */ | |
9b94d1dd | 1272 | |
d33b2eba GS |
1273 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1274 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1275 | |
d33b2eba GS |
1276 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1277 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1278 | |
954c1994 GS |
1279 | /* |
1280 | =for apidoc sv_upgrade | |
1281 | ||
ff276b08 | 1282 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1283 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1284 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1285 | |
1286 | =cut | |
1287 | */ | |
1288 | ||
63f97190 | 1289 | void |
864dbfa3 | 1290 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1291 | { |
9a085840 | 1292 | void** old_body_arena; |
878cc751 | 1293 | size_t old_body_offset; |
4cbc76b1 | 1294 | size_t old_body_length; /* Well, the length to copy. */ |
878cc751 | 1295 | void* old_body; |
16b305e3 NC |
1296 | #ifndef NV_ZERO_IS_ALLBITS_ZERO |
1297 | /* If NV 0.0 is store as all bits 0 then Zero() already creates a correct | |
1298 | 0.0 for us. */ | |
4cbc76b1 | 1299 | bool zero_nv = TRUE; |
16b305e3 | 1300 | #endif |
403d36eb NC |
1301 | void* new_body; |
1302 | size_t new_body_length; | |
1303 | size_t new_body_offset; | |
1304 | void** new_body_arena; | |
1305 | void** new_body_arenaroot; | |
53c1dcc0 | 1306 | const U32 old_type = SvTYPE(sv); |
79072805 | 1307 | |
765f542d NC |
1308 | if (mt != SVt_PV && SvIsCOW(sv)) { |
1309 | sv_force_normal_flags(sv, 0); | |
f130fd45 NIS |
1310 | } |
1311 | ||
79072805 | 1312 | if (SvTYPE(sv) == mt) |
63f97190 | 1313 | return; |
79072805 | 1314 | |
f5282e15 | 1315 | if (SvTYPE(sv) > mt) |
921edb34 RGS |
1316 | Perl_croak(aTHX_ "sv_upgrade from type %d down to type %d", |
1317 | (int)SvTYPE(sv), (int)mt); | |
f5282e15 | 1318 | |
d2e56290 | 1319 | |
878cc751 NC |
1320 | old_body = SvANY(sv); |
1321 | old_body_arena = 0; | |
1322 | old_body_offset = 0; | |
4cbc76b1 | 1323 | old_body_length = 0; |
403d36eb NC |
1324 | new_body_offset = 0; |
1325 | new_body_length = ~0; | |
1326 | ||
1327 | /* Copying structures onto other structures that have been neatly zeroed | |
1328 | has a subtle gotcha. Consider XPVMG | |
1329 | ||
1330 | +------+------+------+------+------+-------+-------+ | |
1331 | | NV | CUR | LEN | IV | MAGIC | STASH | | |
1332 | +------+------+------+------+------+-------+-------+ | |
1333 | 0 4 8 12 16 20 24 28 | |
1334 | ||
1335 | where NVs are aligned to 8 bytes, so that sizeof that structure is | |
1336 | actually 32 bytes long, with 4 bytes of padding at the end: | |
1337 | ||
1338 | +------+------+------+------+------+-------+-------+------+ | |
1339 | | NV | CUR | LEN | IV | MAGIC | STASH | ??? | | |
1340 | +------+------+------+------+------+-------+-------+------+ | |
1341 | 0 4 8 12 16 20 24 28 32 | |
1342 | ||
1343 | so what happens if you allocate memory for this structure: | |
1344 | ||
1345 | +------+------+------+------+------+-------+-------+------+------+... | |
1346 | | NV | CUR | LEN | IV | MAGIC | STASH | GP | NAME | | |
1347 | +------+------+------+------+------+-------+-------+------+------+... | |
1348 | 0 4 8 12 16 20 24 28 32 36 | |
1349 | ||
1350 | zero it, then copy sizeof(XPVMG) bytes on top of it? Not quite what you | |
1351 | expect, because you copy the area marked ??? onto GP. Now, ??? may have | |
1352 | started out as zero once, but it's quite possible that it isn't. So now, | |
1353 | rather than a nicely zeroed GP, you have it pointing somewhere random. | |
1354 | Bugs ensue. | |
1355 | ||
1356 | (In fact, GP ends up pointing at a previous GP structure, because the | |
1357 | principle cause of the padding in XPVMG getting garbage is a copy of | |
1358 | sizeof(XPVMG) bytes from a XPVGV structure in sv_unglob) | |
1359 | ||
1360 | So we are careful and work out the size of used parts of all the | |
1361 | structures. */ | |
878cc751 | 1362 | |
79072805 LW |
1363 | switch (SvTYPE(sv)) { |
1364 | case SVt_NULL: | |
79072805 | 1365 | break; |
79072805 | 1366 | case SVt_IV: |
ed6116ce | 1367 | if (mt == SVt_NV) |
463ee0b2 | 1368 | mt = SVt_PVNV; |
ed6116ce LW |
1369 | else if (mt < SVt_PVIV) |
1370 | mt = SVt_PVIV; | |
4cbc76b1 NC |
1371 | old_body_offset = STRUCT_OFFSET(XPVIV, xiv_iv); |
1372 | old_body_length = sizeof(IV); | |
79072805 LW |
1373 | break; |
1374 | case SVt_NV: | |
9a085840 | 1375 | old_body_arena = (void **) &PL_xnv_root; |
4cbc76b1 | 1376 | old_body_length = sizeof(NV); |
16b305e3 | 1377 | #ifndef NV_ZERO_IS_ALLBITS_ZERO |
4cbc76b1 | 1378 | zero_nv = FALSE; |
16b305e3 | 1379 | #endif |
ed6116ce | 1380 | if (mt < SVt_PVNV) |
79072805 LW |
1381 | mt = SVt_PVNV; |
1382 | break; | |
ed6116ce | 1383 | case SVt_RV: |
ed6116ce | 1384 | break; |
79072805 | 1385 | case SVt_PV: |
9a085840 | 1386 | old_body_arena = (void **) &PL_xpv_root; |
878cc751 NC |
1387 | old_body_offset = STRUCT_OFFSET(XPV, xpv_cur) |
1388 | - STRUCT_OFFSET(xpv_allocated, xpv_cur); | |
403d36eb NC |
1389 | old_body_length = STRUCT_OFFSET(XPV, xpv_len) |
1390 | + sizeof (((XPV*)SvANY(sv))->xpv_len) | |
1391 | - old_body_offset; | |
748a9306 LW |
1392 | if (mt <= SVt_IV) |
1393 | mt = SVt_PVIV; | |
1394 | else if (mt == SVt_NV) | |
1395 | mt = SVt_PVNV; | |
79072805 LW |
1396 | break; |
1397 | case SVt_PVIV: | |
9a085840 | 1398 | old_body_arena = (void **) &PL_xpviv_root; |
878cc751 NC |
1399 | old_body_offset = STRUCT_OFFSET(XPVIV, xpv_cur) |
1400 | - STRUCT_OFFSET(xpviv_allocated, xpv_cur); | |
403d36eb NC |
1401 | old_body_length = STRUCT_OFFSET(XPVIV, xiv_u) |
1402 | + sizeof (((XPVIV*)SvANY(sv))->xiv_u) | |
1403 | - old_body_offset; | |
79072805 LW |
1404 | break; |
1405 | case SVt_PVNV: | |
9a085840 | 1406 | old_body_arena = (void **) &PL_xpvnv_root; |
403d36eb NC |
1407 | old_body_length = STRUCT_OFFSET(XPVNV, xiv_u) |
1408 | + sizeof (((XPVNV*)SvANY(sv))->xiv_u); | |
16b305e3 | 1409 | #ifndef NV_ZERO_IS_ALLBITS_ZERO |
4cbc76b1 | 1410 | zero_nv = FALSE; |
16b305e3 | 1411 | #endif |
79072805 LW |
1412 | break; |
1413 | case SVt_PVMG: | |
0ec50a73 NC |
1414 | /* Because the XPVMG of PL_mess_sv isn't allocated from the arena, |
1415 | there's no way that it can be safely upgraded, because perl.c | |
1416 | expects to Safefree(SvANY(PL_mess_sv)) */ | |
1417 | assert(sv != PL_mess_sv); | |
bce8f412 NC |
1418 | /* This flag bit is used to mean other things in other scalar types. |
1419 | Given that it only has meaning inside the pad, it shouldn't be set | |
1420 | on anything that can get upgraded. */ | |
1421 | assert((SvFLAGS(sv) & SVpad_TYPED) == 0); | |
9a085840 | 1422 | old_body_arena = (void **) &PL_xpvmg_root; |
403d36eb NC |
1423 | old_body_length = STRUCT_OFFSET(XPVMG, xmg_stash) |
1424 | + sizeof (((XPVMG*)SvANY(sv))->xmg_stash); | |
16b305e3 | 1425 | #ifndef NV_ZERO_IS_ALLBITS_ZERO |
4cbc76b1 | 1426 | zero_nv = FALSE; |
16b305e3 | 1427 | #endif |
79072805 LW |
1428 | break; |
1429 | default: | |
cea2e8a9 | 1430 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1431 | } |
1432 | ||
ffb05e06 NC |
1433 | SvFLAGS(sv) &= ~SVTYPEMASK; |
1434 | SvFLAGS(sv) |= mt; | |
1435 | ||
79072805 LW |
1436 | switch (mt) { |
1437 | case SVt_NULL: | |
cea2e8a9 | 1438 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 | 1439 | case SVt_IV: |
4cbc76b1 | 1440 | assert(old_type == SVt_NULL); |
339049b0 | 1441 | SvANY(sv) = (XPVIV*)((char*)&(sv->sv_u.svu_iv) - STRUCT_OFFSET(XPVIV, xiv_iv)); |
403d36eb | 1442 | SvIV_set(sv, 0); |
85274cbc | 1443 | return; |
79072805 | 1444 | case SVt_NV: |
4cbc76b1 | 1445 | assert(old_type == SVt_NULL); |
79072805 | 1446 | SvANY(sv) = new_XNV(); |
403d36eb | 1447 | SvNV_set(sv, 0); |
85274cbc | 1448 | return; |
ed6116ce | 1449 | case SVt_RV: |
4cbc76b1 | 1450 | assert(old_type == SVt_NULL); |
339049b0 | 1451 | SvANY(sv) = &sv->sv_u.svu_rv; |
403d36eb | 1452 | SvRV_set(sv, 0); |
85274cbc | 1453 | return; |
79072805 LW |
1454 | case SVt_PVHV: |
1455 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
1456 | HvFILL(sv) = 0; |
1457 | HvMAX(sv) = 0; | |
8aacddc1 | 1458 | HvTOTALKEYS(sv) = 0; |
bd4b1eb5 | 1459 | |
2068cd4d NC |
1460 | goto hv_av_common; |
1461 | ||
1462 | case SVt_PVAV: | |
1463 | SvANY(sv) = new_XPVAV(); | |
1464 | AvMAX(sv) = -1; | |
1465 | AvFILLp(sv) = -1; | |
1466 | AvALLOC(sv) = 0; | |
1467 | AvREAL_only(sv); | |
1468 | ||
1469 | hv_av_common: | |
1470 | /* SVt_NULL isn't the only thing upgraded to AV or HV. | |
1471 | The target created by newSVrv also is, and it can have magic. | |
1472 | However, it never has SvPVX set. | |
1473 | */ | |
1474 | if (old_type >= SVt_RV) { | |
1475 | assert(SvPVX_const(sv) == 0); | |
8bd4d4c5 | 1476 | } |
2068cd4d NC |
1477 | |
1478 | /* Could put this in the else clause below, as PVMG must have SvPVX | |
1479 | 0 already (the assertion above) */ | |
bd4b1eb5 | 1480 | SvPV_set(sv, (char*)0); |
2068cd4d NC |
1481 | |
1482 | if (old_type >= SVt_PVMG) { | |
1483 | SvMAGIC_set(sv, ((XPVMG*)old_body)->xmg_magic); | |
1484 | SvSTASH_set(sv, ((XPVMG*)old_body)->xmg_stash); | |
1485 | } else { | |
1486 | SvMAGIC_set(sv, 0); | |
1487 | SvSTASH_set(sv, 0); | |
1488 | } | |
79072805 | 1489 | break; |
bd4b1eb5 NC |
1490 | |
1491 | case SVt_PVIO: | |
403d36eb NC |
1492 | new_body = new_XPVIO(); |
1493 | new_body_length = sizeof(XPVIO); | |
1494 | goto zero; | |
bd4b1eb5 | 1495 | case SVt_PVFM: |
403d36eb NC |
1496 | new_body = new_XPVFM(); |
1497 | new_body_length = sizeof(XPVFM); | |
1498 | goto zero; | |
1499 | ||
bd4b1eb5 | 1500 | case SVt_PVBM: |
403d36eb NC |
1501 | new_body_length = sizeof(XPVBM); |
1502 | new_body_arena = (void **) &PL_xpvbm_root; | |
1503 | new_body_arenaroot = (void **) &PL_xpvbm_arenaroot; | |
1504 | goto new_body; | |
bd4b1eb5 | 1505 | case SVt_PVGV: |
403d36eb NC |
1506 | new_body_length = sizeof(XPVGV); |
1507 | new_body_arena = (void **) &PL_xpvgv_root; | |
1508 | new_body_arenaroot = (void **) &PL_xpvgv_arenaroot; | |
1509 | goto new_body; | |
79072805 | 1510 | case SVt_PVCV: |
403d36eb NC |
1511 | new_body_length = sizeof(XPVCV); |
1512 | new_body_arena = (void **) &PL_xpvcv_root; | |
1513 | new_body_arenaroot = (void **) &PL_xpvcv_arenaroot; | |
1514 | goto new_body; | |
bd4b1eb5 | 1515 | case SVt_PVLV: |
403d36eb NC |
1516 | new_body_length = sizeof(XPVLV); |
1517 | new_body_arena = (void **) &PL_xpvlv_root; | |
1518 | new_body_arenaroot = (void **) &PL_xpvlv_arenaroot; | |
1519 | goto new_body; | |
1520 | case SVt_PVMG: | |
1521 | new_body_length = sizeof(XPVMG); | |
1522 | new_body_arena = (void **) &PL_xpvmg_root; | |
1523 | new_body_arenaroot = (void **) &PL_xpvmg_arenaroot; | |
1524 | goto new_body; | |
1525 | case SVt_PVNV: | |
1526 | new_body_length = sizeof(XPVNV); | |
1527 | new_body_arena = (void **) &PL_xpvnv_root; | |
1528 | new_body_arenaroot = (void **) &PL_xpvnv_arenaroot; | |
1529 | goto new_body; | |
1530 | case SVt_PVIV: | |
1531 | new_body_offset = STRUCT_OFFSET(XPVIV, xpv_cur) | |
1532 | - STRUCT_OFFSET(xpviv_allocated, xpv_cur); | |
1533 | new_body_length = sizeof(XPVIV) - new_body_offset; | |
1534 | new_body_arena = (void **) &PL_xpviv_root; | |
1535 | new_body_arenaroot = (void **) &PL_xpviv_arenaroot; | |
1536 | /* XXX Is this still needed? Was it ever needed? Surely as there is | |
1537 | no route from NV to PVIV, NOK can never be true */ | |
1538 | if (SvNIOK(sv)) | |
1539 | (void)SvIOK_on(sv); | |
1540 | SvNOK_off(sv); | |
1541 | goto new_body_no_NV; | |
1542 | case SVt_PV: | |
1543 | new_body_offset = STRUCT_OFFSET(XPV, xpv_cur) | |
1544 | - STRUCT_OFFSET(xpv_allocated, xpv_cur); | |
1545 | new_body_length = sizeof(XPV) - new_body_offset; | |
1546 | new_body_arena = (void **) &PL_xpv_root; | |
1547 | new_body_arenaroot = (void **) &PL_xpv_arenaroot; | |
1548 | new_body_no_NV: | |
1549 | /* PV and PVIV don't have an NV slot. */ | |
16b305e3 | 1550 | #ifndef NV_ZERO_IS_ALLBITS_ZERO |
403d36eb | 1551 | zero_nv = FALSE; |
16b305e3 | 1552 | #endif |
403d36eb | 1553 | |
16b305e3 NC |
1554 | new_body: |
1555 | assert(new_body_length); | |
403d36eb | 1556 | #ifndef PURIFY |
16b305e3 | 1557 | /* This points to the start of the allocated area. */ |
08742458 NC |
1558 | new_body_inline(new_body, new_body_arenaroot, new_body_arena, |
1559 | new_body_length); | |
403d36eb | 1560 | #else |
16b305e3 NC |
1561 | /* We always allocated the full length item with PURIFY */ |
1562 | new_body_length += new_body_offset; | |
1563 | new_body_offset = 0; | |
1564 | new_body = my_safemalloc(new_body_length); | |
403d36eb NC |
1565 | |
1566 | #endif | |
16b305e3 NC |
1567 | zero: |
1568 | Zero(new_body, new_body_length, char); | |
1569 | new_body = ((char *)new_body) - new_body_offset; | |
1570 | SvANY(sv) = new_body; | |
1571 | ||
1572 | if (old_body_length) { | |
1573 | Copy((char *)old_body + old_body_offset, | |
1574 | (char *)new_body + old_body_offset, | |
1575 | old_body_length, char); | |
1576 | } | |
403d36eb | 1577 | |
16b305e3 NC |
1578 | #ifndef NV_ZERO_IS_ALLBITS_ZERO |
1579 | if (zero_nv) | |
1580 | SvNV_set(sv, 0); | |
1581 | #endif | |
403d36eb | 1582 | |
16b305e3 NC |
1583 | if (mt == SVt_PVIO) |
1584 | IoPAGE_LEN(sv) = 60; | |
1585 | if (old_type < SVt_RV) | |
1586 | SvPV_set(sv, 0); | |
8990e307 | 1587 | break; |
403d36eb NC |
1588 | default: |
1589 | Perl_croak(aTHX_ "panic: sv_upgrade to unknown type %lu", mt); | |
8990e307 | 1590 | } |
878cc751 NC |
1591 | |
1592 | ||
1593 | if (old_body_arena) { | |
1594 | #ifdef PURIFY | |
ee6954bb | 1595 | my_safefree(old_body); |
878cc751 | 1596 | #else |
cb4415b8 NC |
1597 | del_body((void*)((char*)old_body + old_body_offset), |
1598 | old_body_arena); | |
878cc751 | 1599 | #endif |
2068cd4d | 1600 | } |
79072805 LW |
1601 | } |
1602 | ||
645c22ef DM |
1603 | /* |
1604 | =for apidoc sv_backoff | |
1605 | ||
1606 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
1607 | wrapper instead. | |
1608 | ||
1609 | =cut | |
1610 | */ | |
1611 | ||
79072805 | 1612 | int |
864dbfa3 | 1613 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1614 | { |
1615 | assert(SvOOK(sv)); | |
b79f7545 NC |
1616 | assert(SvTYPE(sv) != SVt_PVHV); |
1617 | assert(SvTYPE(sv) != SVt_PVAV); | |
463ee0b2 | 1618 | if (SvIVX(sv)) { |
53c1dcc0 | 1619 | const char * const s = SvPVX_const(sv); |
b162af07 | 1620 | SvLEN_set(sv, SvLEN(sv) + SvIVX(sv)); |
f880fe2f | 1621 | SvPV_set(sv, SvPVX(sv) - SvIVX(sv)); |
79072805 | 1622 | SvIV_set(sv, 0); |
463ee0b2 | 1623 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1624 | } |
1625 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1626 | return 0; |
79072805 LW |
1627 | } |
1628 | ||
954c1994 GS |
1629 | /* |
1630 | =for apidoc sv_grow | |
1631 | ||
645c22ef DM |
1632 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
1633 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1634 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
1635 | |
1636 | =cut | |
1637 | */ | |
1638 | ||
79072805 | 1639 | char * |
864dbfa3 | 1640 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1641 | { |
1642 | register char *s; | |
1643 | ||
55497cff | 1644 | #ifdef HAS_64K_LIMIT |
79072805 | 1645 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1646 | PerlIO_printf(Perl_debug_log, |
1647 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1648 | my_exit(1); |
1649 | } | |
55497cff | 1650 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1651 | if (SvROK(sv)) |
1652 | sv_unref(sv); | |
79072805 LW |
1653 | if (SvTYPE(sv) < SVt_PV) { |
1654 | sv_upgrade(sv, SVt_PV); | |
93524f2b | 1655 | s = SvPVX_mutable(sv); |
79072805 LW |
1656 | } |
1657 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1658 | sv_backoff(sv); | |
93524f2b | 1659 | s = SvPVX_mutable(sv); |
79072805 LW |
1660 | if (newlen > SvLEN(sv)) |
1661 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1662 | #ifdef HAS_64K_LIMIT |
1663 | if (newlen >= 0x10000) | |
1664 | newlen = 0xFFFF; | |
1665 | #endif | |
79072805 | 1666 | } |
bc44a8a2 | 1667 | else |
4d84ee25 | 1668 | s = SvPVX_mutable(sv); |
54f0641b | 1669 | |
79072805 | 1670 | if (newlen > SvLEN(sv)) { /* need more room? */ |
7a9b70e9 | 1671 | newlen = PERL_STRLEN_ROUNDUP(newlen); |
8d6dde3e | 1672 | if (SvLEN(sv) && s) { |
7bab3ede | 1673 | #ifdef MYMALLOC |
93524f2b | 1674 | const STRLEN l = malloced_size((void*)SvPVX_const(sv)); |
8d6dde3e IZ |
1675 | if (newlen <= l) { |
1676 | SvLEN_set(sv, l); | |
1677 | return s; | |
1678 | } else | |
c70c8a0a | 1679 | #endif |
1936d2a7 | 1680 | s = saferealloc(s, newlen); |
8d6dde3e | 1681 | } |
bfed75c6 | 1682 | else { |
1936d2a7 | 1683 | s = safemalloc(newlen); |
3f7c398e SP |
1684 | if (SvPVX_const(sv) && SvCUR(sv)) { |
1685 | Move(SvPVX_const(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); | |
40565179 | 1686 | } |
4e83176d | 1687 | } |
79072805 | 1688 | SvPV_set(sv, s); |
e1ec3a88 | 1689 | SvLEN_set(sv, newlen); |
79072805 LW |
1690 | } |
1691 | return s; | |
1692 | } | |
1693 | ||
954c1994 GS |
1694 | /* |
1695 | =for apidoc sv_setiv | |
1696 | ||
645c22ef DM |
1697 | Copies an integer into the given SV, upgrading first if necessary. |
1698 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
1699 | |
1700 | =cut | |
1701 | */ | |
1702 | ||
79072805 | 1703 | void |
864dbfa3 | 1704 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1705 | { |
765f542d | 1706 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 LW |
1707 | switch (SvTYPE(sv)) { |
1708 | case SVt_NULL: | |
79072805 | 1709 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1710 | break; |
1711 | case SVt_NV: | |
1712 | sv_upgrade(sv, SVt_PVNV); | |
1713 | break; | |
ed6116ce | 1714 | case SVt_RV: |
463ee0b2 | 1715 | case SVt_PV: |
79072805 | 1716 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1717 | break; |
a0d0e21e LW |
1718 | |
1719 | case SVt_PVGV: | |
a0d0e21e LW |
1720 | case SVt_PVAV: |
1721 | case SVt_PVHV: | |
1722 | case SVt_PVCV: | |
1723 | case SVt_PVFM: | |
1724 | case SVt_PVIO: | |
411caa50 | 1725 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 1726 | OP_DESC(PL_op)); |
463ee0b2 | 1727 | } |
a0d0e21e | 1728 | (void)SvIOK_only(sv); /* validate number */ |
45977657 | 1729 | SvIV_set(sv, i); |
463ee0b2 | 1730 | SvTAINT(sv); |
79072805 LW |
1731 | } |
1732 | ||
954c1994 GS |
1733 | /* |
1734 | =for apidoc sv_setiv_mg | |
1735 | ||
1736 | Like C<sv_setiv>, but also handles 'set' magic. | |
1737 | ||
1738 | =cut | |
1739 | */ | |
1740 | ||
79072805 | 1741 | void |
864dbfa3 | 1742 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1743 | { |
1744 | sv_setiv(sv,i); | |
1745 | SvSETMAGIC(sv); | |
1746 | } | |
1747 | ||
954c1994 GS |
1748 | /* |
1749 | =for apidoc sv_setuv | |
1750 | ||
645c22ef DM |
1751 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
1752 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
1753 | |
1754 | =cut | |
1755 | */ | |
1756 | ||
ef50df4b | 1757 | void |
864dbfa3 | 1758 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1759 | { |
55ada374 NC |
1760 | /* With these two if statements: |
1761 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 1762 | |
55ada374 NC |
1763 | without |
1764 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 1765 | |
55ada374 NC |
1766 | If you wish to remove them, please benchmark to see what the effect is |
1767 | */ | |
28e5dec8 JH |
1768 | if (u <= (UV)IV_MAX) { |
1769 | sv_setiv(sv, (IV)u); | |
1770 | return; | |
1771 | } | |
25da4f38 IZ |
1772 | sv_setiv(sv, 0); |
1773 | SvIsUV_on(sv); | |
607fa7f2 | 1774 | SvUV_set(sv, u); |
55497cff | 1775 | } |
1776 | ||
954c1994 GS |
1777 | /* |
1778 | =for apidoc sv_setuv_mg | |
1779 | ||
1780 | Like C<sv_setuv>, but also handles 'set' magic. | |
1781 | ||
1782 | =cut | |
1783 | */ | |
1784 | ||
55497cff | 1785 | void |
864dbfa3 | 1786 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 1787 | { |
aa0f650e NC |
1788 | sv_setiv(sv, 0); |
1789 | SvIsUV_on(sv); | |
1790 | sv_setuv(sv,u); | |
ef50df4b GS |
1791 | SvSETMAGIC(sv); |
1792 | } | |
1793 | ||
954c1994 GS |
1794 | /* |
1795 | =for apidoc sv_setnv | |
1796 | ||
645c22ef DM |
1797 | Copies a double into the given SV, upgrading first if necessary. |
1798 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
1799 | |
1800 | =cut | |
1801 | */ | |
1802 | ||
ef50df4b | 1803 | void |
65202027 | 1804 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1805 | { |
765f542d | 1806 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
a0d0e21e LW |
1807 | switch (SvTYPE(sv)) { |
1808 | case SVt_NULL: | |
1809 | case SVt_IV: | |
79072805 | 1810 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1811 | break; |
a0d0e21e LW |
1812 | case SVt_RV: |
1813 | case SVt_PV: | |
1814 | case SVt_PVIV: | |
79072805 | 1815 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1816 | break; |
827b7e14 | 1817 | |
a0d0e21e | 1818 | case SVt_PVGV: |
a0d0e21e LW |
1819 | case SVt_PVAV: |
1820 | case SVt_PVHV: | |
1821 | case SVt_PVCV: | |
1822 | case SVt_PVFM: | |
1823 | case SVt_PVIO: | |
411caa50 | 1824 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 1825 | OP_NAME(PL_op)); |
79072805 | 1826 | } |
9d6ce603 | 1827 | SvNV_set(sv, num); |
a0d0e21e | 1828 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1829 | SvTAINT(sv); |
79072805 LW |
1830 | } |
1831 | ||
954c1994 GS |
1832 | /* |
1833 | =for apidoc sv_setnv_mg | |
1834 | ||
1835 | Like C<sv_setnv>, but also handles 'set' magic. | |
1836 | ||
1837 | =cut | |
1838 | */ | |
1839 | ||
ef50df4b | 1840 | void |
65202027 | 1841 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1842 | { |
1843 | sv_setnv(sv,num); | |
1844 | SvSETMAGIC(sv); | |
1845 | } | |
1846 | ||
645c22ef DM |
1847 | /* Print an "isn't numeric" warning, using a cleaned-up, |
1848 | * printable version of the offending string | |
1849 | */ | |
1850 | ||
76e3520e | 1851 | STATIC void |
cea2e8a9 | 1852 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1853 | { |
94463019 JH |
1854 | SV *dsv; |
1855 | char tmpbuf[64]; | |
1b6737cc | 1856 | const char *pv; |
94463019 JH |
1857 | |
1858 | if (DO_UTF8(sv)) { | |
d0043bd1 | 1859 | dsv = sv_2mortal(newSVpvn("", 0)); |
94463019 JH |
1860 | pv = sv_uni_display(dsv, sv, 10, 0); |
1861 | } else { | |
1862 | char *d = tmpbuf; | |
1863 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
1864 | /* each *s can expand to 4 chars + "...\0", | |
1865 | i.e. need room for 8 chars */ | |
ecdeb87c | 1866 | |
e62f0680 NC |
1867 | const char *s, *end; |
1868 | for (s = SvPVX_const(sv), end = s + SvCUR(sv); s < end && d < limit; | |
1869 | s++) { | |
94463019 JH |
1870 | int ch = *s & 0xFF; |
1871 | if (ch & 128 && !isPRINT_LC(ch)) { | |
1872 | *d++ = 'M'; | |
1873 | *d++ = '-'; | |
1874 | ch &= 127; | |
1875 | } | |
1876 | if (ch == '\n') { | |
1877 | *d++ = '\\'; | |
1878 | *d++ = 'n'; | |
1879 | } | |
1880 | else if (ch == '\r') { | |
1881 | *d++ = '\\'; | |
1882 | *d++ = 'r'; | |
1883 | } | |
1884 | else if (ch == '\f') { | |
1885 | *d++ = '\\'; | |
1886 | *d++ = 'f'; | |
1887 | } | |
1888 | else if (ch == '\\') { | |
1889 | *d++ = '\\'; | |
1890 | *d++ = '\\'; | |
1891 | } | |
1892 | else if (ch == '\0') { | |
1893 | *d++ = '\\'; | |
1894 | *d++ = '0'; | |
1895 | } | |
1896 | else if (isPRINT_LC(ch)) | |
1897 | *d++ = ch; | |
1898 | else { | |
1899 | *d++ = '^'; | |
1900 | *d++ = toCTRL(ch); | |
1901 | } | |
1902 | } | |
1903 | if (s < end) { | |
1904 | *d++ = '.'; | |
1905 | *d++ = '.'; | |
1906 | *d++ = '.'; | |
1907 | } | |
1908 | *d = '\0'; | |
1909 | pv = tmpbuf; | |
a0d0e21e | 1910 | } |
a0d0e21e | 1911 | |
533c011a | 1912 | if (PL_op) |
9014280d | 1913 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
1914 | "Argument \"%s\" isn't numeric in %s", pv, |
1915 | OP_DESC(PL_op)); | |
a0d0e21e | 1916 | else |
9014280d | 1917 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 1918 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
1919 | } |
1920 | ||
c2988b20 NC |
1921 | /* |
1922 | =for apidoc looks_like_number | |
1923 | ||
645c22ef DM |
1924 | Test if the content of an SV looks like a number (or is a number). |
1925 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
1926 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
1927 | |
1928 | =cut | |
1929 | */ | |
1930 | ||
1931 | I32 | |
1932 | Perl_looks_like_number(pTHX_ SV *sv) | |
1933 | { | |
a3b680e6 | 1934 | register const char *sbegin; |
c2988b20 NC |
1935 | STRLEN len; |
1936 | ||
1937 | if (SvPOK(sv)) { | |
3f7c398e | 1938 | sbegin = SvPVX_const(sv); |
c2988b20 NC |
1939 | len = SvCUR(sv); |
1940 | } | |
1941 | else if (SvPOKp(sv)) | |
83003860 | 1942 | sbegin = SvPV_const(sv, len); |
c2988b20 | 1943 | else |
e0ab1c0e | 1944 | return SvFLAGS(sv) & (SVf_NOK|SVp_NOK|SVf_IOK|SVp_IOK); |
c2988b20 NC |
1945 | return grok_number(sbegin, len, NULL); |
1946 | } | |
25da4f38 IZ |
1947 | |
1948 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1949 | until proven guilty, assume that things are not that bad... */ | |
1950 | ||
645c22ef DM |
1951 | /* |
1952 | NV_PRESERVES_UV: | |
1953 | ||
1954 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
1955 | an IV (an assumption perl has been based on to date) it becomes necessary |
1956 | to remove the assumption that the NV always carries enough precision to | |
1957 | recreate the IV whenever needed, and that the NV is the canonical form. | |
1958 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 1959 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
1960 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
1961 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
1962 | conversion where precision was lost and IV/UV/NV slots that have a | |
1963 | valid conversion which has lost no precision | |
645c22ef | 1964 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
1965 | would lose precision, the precise conversion (or differently |
1966 | imprecise conversion) is also performed and cached, to prevent | |
1967 | requests for different numeric formats on the same SV causing | |
1968 | lossy conversion chains. (lossless conversion chains are perfectly | |
1969 | acceptable (still)) | |
1970 | ||
1971 | ||
1972 | flags are used: | |
1973 | SvIOKp is true if the IV slot contains a valid value | |
1974 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
1975 | SvNOKp is true if the NV slot contains a valid value | |
1976 | SvNOK is true only if the NV value is accurate | |
1977 | ||
1978 | so | |
645c22ef | 1979 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
1980 | IV(or UV) would lose accuracy over a direct conversion from PV to |
1981 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
1982 | SV as IOK NOKp (ie not NOK). | |
1983 | ||
645c22ef | 1984 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
1985 | NV would lose accuracy over a direct conversion from PV to NV. If it |
1986 | would, cache both conversions, flag similarly. | |
1987 | ||
1988 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
1989 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
1990 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
1991 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 1992 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 1993 | |
645c22ef DM |
1994 | The benefit of this is that operations such as pp_add know that if |
1995 | SvIOK is true for both left and right operands, then integer addition | |
1996 | can be used instead of floating point (for cases where the result won't | |
1997 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
1998 | loss of precision compared with integer addition. |
1999 | ||
2000 | * making IV and NV equal status should make maths accurate on 64 bit | |
2001 | platforms | |
2002 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 2003 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
2004 | looking for SvIOK and checking for overflow will not outweigh the |
2005 | fp to integer speedup) | |
2006 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
2007 | values, as the change from SvIOK to SvIOKp will cause a call into | |
2008 | sv_2iv each time rather than a macro access direct to the IV slot | |
2009 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 2010 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
2011 | |
2012 | #################################################################### | |
645c22ef DM |
2013 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
2014 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
2015 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
2016 | #################################################################### |
2017 | ||
645c22ef | 2018 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
2019 | performance ratio. |
2020 | */ | |
2021 | ||
2022 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
2023 | # define IS_NUMBER_UNDERFLOW_IV 1 |
2024 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
2025 | # define IS_NUMBER_IV_AND_UV 2 | |
2026 | # define IS_NUMBER_OVERFLOW_IV 4 | |
2027 | # define IS_NUMBER_OVERFLOW_UV 5 | |
2028 | ||
2029 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
2030 | |
2031 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
2032 | STATIC int | |
645c22ef | 2033 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 2034 | { |
3f7c398e | 2035 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%"NVgf" inttype=%"UVXf"\n", SvPVX_const(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); |
28e5dec8 JH |
2036 | if (SvNVX(sv) < (NV)IV_MIN) { |
2037 | (void)SvIOKp_on(sv); | |
2038 | (void)SvNOK_on(sv); | |
45977657 | 2039 | SvIV_set(sv, IV_MIN); |
28e5dec8 JH |
2040 | return IS_NUMBER_UNDERFLOW_IV; |
2041 | } | |
2042 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2043 | (void)SvIOKp_on(sv); | |
2044 | (void)SvNOK_on(sv); | |
2045 | SvIsUV_on(sv); | |
607fa7f2 | 2046 | SvUV_set(sv, UV_MAX); |
28e5dec8 JH |
2047 | return IS_NUMBER_OVERFLOW_UV; |
2048 | } | |
c2988b20 NC |
2049 | (void)SvIOKp_on(sv); |
2050 | (void)SvNOK_on(sv); | |
2051 | /* Can't use strtol etc to convert this string. (See truth table in | |
2052 | sv_2iv */ | |
2053 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
45977657 | 2054 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2055 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2056 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
2057 | } else { | |
2058 | /* Integer is imprecise. NOK, IOKp */ | |
2059 | } | |
2060 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
2061 | } | |
2062 | SvIsUV_on(sv); | |
607fa7f2 | 2063 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2064 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { |
2065 | if (SvUVX(sv) == UV_MAX) { | |
2066 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
2067 | possibly be preserved by NV. Hence, it must be overflow. | |
2068 | NOK, IOKp */ | |
2069 | return IS_NUMBER_OVERFLOW_UV; | |
2070 | } | |
2071 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
2072 | } else { | |
2073 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 2074 | } |
c2988b20 | 2075 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 2076 | } |
645c22ef DM |
2077 | #endif /* !NV_PRESERVES_UV*/ |
2078 | ||
891f9566 YST |
2079 | /* sv_2iv() is now a macro using Perl_sv_2iv_flags(); |
2080 | * this function provided for binary compatibility only | |
2081 | */ | |
2082 | ||
2083 | IV | |
2084 | Perl_sv_2iv(pTHX_ register SV *sv) | |
2085 | { | |
2086 | return sv_2iv_flags(sv, SV_GMAGIC); | |
2087 | } | |
2088 | ||
645c22ef | 2089 | /* |
891f9566 | 2090 | =for apidoc sv_2iv_flags |
645c22ef | 2091 | |
891f9566 YST |
2092 | Return the integer value of an SV, doing any necessary string |
2093 | conversion. If flags includes SV_GMAGIC, does an mg_get() first. | |
2094 | Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
645c22ef DM |
2095 | |
2096 | =cut | |
2097 | */ | |
28e5dec8 | 2098 | |
a0d0e21e | 2099 | IV |
891f9566 | 2100 | Perl_sv_2iv_flags(pTHX_ register SV *sv, I32 flags) |
79072805 LW |
2101 | { |
2102 | if (!sv) | |
2103 | return 0; | |
8990e307 | 2104 | if (SvGMAGICAL(sv)) { |
891f9566 YST |
2105 | if (flags & SV_GMAGIC) |
2106 | mg_get(sv); | |
463ee0b2 LW |
2107 | if (SvIOKp(sv)) |
2108 | return SvIVX(sv); | |
748a9306 | 2109 | if (SvNOKp(sv)) { |
25da4f38 | 2110 | return I_V(SvNVX(sv)); |
748a9306 | 2111 | } |
36477c24 | 2112 | if (SvPOKp(sv) && SvLEN(sv)) |
2113 | return asIV(sv); | |
3fe9a6f1 | 2114 | if (!SvROK(sv)) { |
d008e5eb | 2115 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
041457d9 | 2116 | if (!PL_localizing && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2117 | report_uninit(sv); |
c6ee37c5 | 2118 | } |
36477c24 | 2119 | return 0; |
3fe9a6f1 | 2120 | } |
463ee0b2 | 2121 | } |
ed6116ce | 2122 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2123 | if (SvROK(sv)) { |
a0d0e21e | 2124 | SV* tmpstr; |
1554e226 | 2125 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2126 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2127 | return SvIV(tmpstr); |
56431972 | 2128 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2129 | } |
765f542d NC |
2130 | if (SvIsCOW(sv)) { |
2131 | sv_force_normal_flags(sv, 0); | |
47deb5e7 | 2132 | } |
0336b60e | 2133 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2134 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2135 | report_uninit(sv); |
ed6116ce LW |
2136 | return 0; |
2137 | } | |
79072805 | 2138 | } |
25da4f38 IZ |
2139 | if (SvIOKp(sv)) { |
2140 | if (SvIsUV(sv)) { | |
2141 | return (IV)(SvUVX(sv)); | |
2142 | } | |
2143 | else { | |
2144 | return SvIVX(sv); | |
2145 | } | |
463ee0b2 | 2146 | } |
748a9306 | 2147 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2148 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2149 | * without also getting a cached IV/UV from it at the same time | |
2150 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2151 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2152 | |
2153 | if (SvTYPE(sv) == SVt_NV) | |
2154 | sv_upgrade(sv, SVt_PVNV); | |
2155 | ||
28e5dec8 JH |
2156 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2157 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2158 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2159 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2160 | cases go to UV */ | |
2161 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 2162 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2163 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2164 | #ifndef NV_PRESERVES_UV | |
2165 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2166 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2167 | /* Don't flag it as "accurately an integer" if the number | |
2168 | came from a (by definition imprecise) NV operation, and | |
2169 | we're outside the range of NV integer precision */ | |
2170 | #endif | |
2171 | ) { | |
2172 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2173 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2174 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2175 | PTR2UV(sv), |
2176 | SvNVX(sv), | |
2177 | SvIVX(sv))); | |
2178 | ||
2179 | } else { | |
2180 | /* IV not precise. No need to convert from PV, as NV | |
2181 | conversion would already have cached IV if it detected | |
2182 | that PV->IV would be better than PV->NV->IV | |
2183 | flags already correct - don't set public IOK. */ | |
2184 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2185 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2186 | PTR2UV(sv), |
2187 | SvNVX(sv), | |
2188 | SvIVX(sv))); | |
2189 | } | |
2190 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2191 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2192 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2193 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2194 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2195 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2196 | Hopefully for 2s complement IV_MIN is something like | |
2197 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2198 | } |
25da4f38 | 2199 | else { |
607fa7f2 | 2200 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2201 | if ( |
2202 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2203 | #ifndef NV_PRESERVES_UV | |
2204 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2205 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2206 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2207 | /* Don't flag it as "accurately an integer" if the number | |
2208 | came from a (by definition imprecise) NV operation, and | |
2209 | we're outside the range of NV integer precision */ | |
2210 | #endif | |
2211 | ) | |
2212 | SvIOK_on(sv); | |
25da4f38 IZ |
2213 | SvIsUV_on(sv); |
2214 | ret_iv_max: | |
1c846c1f | 2215 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2216 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2217 | PTR2UV(sv), |
57def98f JH |
2218 | SvUVX(sv), |
2219 | SvUVX(sv))); | |
25da4f38 IZ |
2220 | return (IV)SvUVX(sv); |
2221 | } | |
748a9306 LW |
2222 | } |
2223 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 | 2224 | UV value; |
504618e9 | 2225 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
25da4f38 IZ |
2226 | /* We want to avoid a possible problem when we cache an IV which |
2227 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2228 | the same as the direct translation of the initial string |
2229 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2230 | be careful to ensure that the value with the .456 is around if the | |
2231 | NV value is requested in the future). | |
1c846c1f | 2232 | |
25da4f38 IZ |
2233 | This means that if we cache such an IV, we need to cache the |
2234 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2235 | cache the NV if we are sure it's not needed. |
25da4f38 | 2236 | */ |
16b7a9a4 | 2237 | |
c2988b20 NC |
2238 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2239 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2240 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2241 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2242 | if (SvTYPE(sv) < SVt_PVIV) |
2243 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2244 | (void)SvIOK_on(sv); |
c2988b20 NC |
2245 | } else if (SvTYPE(sv) < SVt_PVNV) |
2246 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2247 | |
c2988b20 NC |
2248 | /* If NV preserves UV then we only use the UV value if we know that |
2249 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2250 | then the value returned may have more precision than atof() will | |
2251 | return, even though value isn't perfectly accurate. */ | |
2252 | if ((numtype & (IS_NUMBER_IN_UV | |
2253 | #ifdef NV_PRESERVES_UV | |
2254 | | IS_NUMBER_NOT_INT | |
2255 | #endif | |
2256 | )) == IS_NUMBER_IN_UV) { | |
2257 | /* This won't turn off the public IOK flag if it was set above */ | |
2258 | (void)SvIOKp_on(sv); | |
2259 | ||
2260 | if (!(numtype & IS_NUMBER_NEG)) { | |
2261 | /* positive */; | |
2262 | if (value <= (UV)IV_MAX) { | |
45977657 | 2263 | SvIV_set(sv, (IV)value); |
c2988b20 | 2264 | } else { |
607fa7f2 | 2265 | SvUV_set(sv, value); |
c2988b20 NC |
2266 | SvIsUV_on(sv); |
2267 | } | |
2268 | } else { | |
2269 | /* 2s complement assumption */ | |
2270 | if (value <= (UV)IV_MIN) { | |
45977657 | 2271 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2272 | } else { |
2273 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2274 | I'm assuming it will be rare. */ |
c2988b20 NC |
2275 | if (SvTYPE(sv) < SVt_PVNV) |
2276 | sv_upgrade(sv, SVt_PVNV); | |
2277 | SvNOK_on(sv); | |
2278 | SvIOK_off(sv); | |
2279 | SvIOKp_on(sv); | |
9d6ce603 | 2280 | SvNV_set(sv, -(NV)value); |
45977657 | 2281 | SvIV_set(sv, IV_MIN); |
c2988b20 NC |
2282 | } |
2283 | } | |
2284 | } | |
2285 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2286 | will be in the previous block to set the IV slot, and the next | |
2287 | block to set the NV slot. So no else here. */ | |
2288 | ||
2289 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2290 | != IS_NUMBER_IN_UV) { | |
2291 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
3f7c398e | 2292 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 | 2293 | |
c2988b20 NC |
2294 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2295 | not_a_number(sv); | |
28e5dec8 | 2296 | |
65202027 | 2297 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2298 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2299 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2300 | #else |
1779d84d | 2301 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2302 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2303 | #endif |
28e5dec8 JH |
2304 | |
2305 | ||
2306 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2307 | (void)SvIOKp_on(sv); |
2308 | (void)SvNOK_on(sv); | |
2309 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 2310 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2311 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2312 | SvIOK_on(sv); | |
28e5dec8 | 2313 | } else { |
c2988b20 NC |
2314 | /* Integer is imprecise. NOK, IOKp */ |
2315 | } | |
2316 | /* UV will not work better than IV */ | |
2317 | } else { | |
2318 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2319 | SvIsUV_on(sv); | |
2320 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
607fa7f2 | 2321 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
2322 | SvIsUV_on(sv); |
2323 | } else { | |
607fa7f2 | 2324 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2325 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ |
2326 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2327 | SvIOK_on(sv); | |
28e5dec8 JH |
2328 | SvIsUV_on(sv); |
2329 | } else { | |
c2988b20 NC |
2330 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2331 | SvIsUV_on(sv); | |
28e5dec8 | 2332 | } |
28e5dec8 | 2333 | } |
c2988b20 NC |
2334 | goto ret_iv_max; |
2335 | } | |
28e5dec8 | 2336 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2337 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2338 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2339 | /* The IV slot will have been set from value returned by | |
2340 | grok_number above. The NV slot has just been set using | |
2341 | Atof. */ | |
560b0c46 | 2342 | SvNOK_on(sv); |
c2988b20 NC |
2343 | assert (SvIOKp(sv)); |
2344 | } else { | |
2345 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2346 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2347 | /* Small enough to preserve all bits. */ | |
2348 | (void)SvIOKp_on(sv); | |
2349 | SvNOK_on(sv); | |
45977657 | 2350 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2351 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
2352 | SvIOK_on(sv); | |
2353 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2354 | this NV is in the preserved range, therefore: */ | |
2355 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2356 | < (UV)IV_MAX)) { | |
32fdb065 | 2357 | 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 |
2358 | } |
2359 | } else { | |
2360 | /* IN_UV NOT_INT | |
2361 | 0 0 already failed to read UV. | |
2362 | 0 1 already failed to read UV. | |
2363 | 1 0 you won't get here in this case. IV/UV | |
2364 | slot set, public IOK, Atof() unneeded. | |
2365 | 1 1 already read UV. | |
2366 | so there's no point in sv_2iuv_non_preserve() attempting | |
2367 | to use atol, strtol, strtoul etc. */ | |
2368 | if (sv_2iuv_non_preserve (sv, numtype) | |
2369 | >= IS_NUMBER_OVERFLOW_IV) | |
2370 | goto ret_iv_max; | |
2371 | } | |
2372 | } | |
28e5dec8 | 2373 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2374 | } |
28e5dec8 | 2375 | } else { |
041457d9 | 2376 | if (!PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP) && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2377 | report_uninit(sv); |
25da4f38 IZ |
2378 | if (SvTYPE(sv) < SVt_IV) |
2379 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2380 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2381 | return 0; |
79072805 | 2382 | } |
1d7c1841 GS |
2383 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2384 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2385 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2386 | } |
2387 | ||
891f9566 YST |
2388 | /* sv_2uv() is now a macro using Perl_sv_2uv_flags(); |
2389 | * this function provided for binary compatibility only | |
2390 | */ | |
2391 | ||
2392 | UV | |
2393 | Perl_sv_2uv(pTHX_ register SV *sv) | |
2394 | { | |
2395 | return sv_2uv_flags(sv, SV_GMAGIC); | |
2396 | } | |
2397 | ||
645c22ef | 2398 | /* |
891f9566 | 2399 | =for apidoc sv_2uv_flags |
645c22ef DM |
2400 | |
2401 | Return the unsigned integer value of an SV, doing any necessary string | |
891f9566 YST |
2402 | conversion. If flags includes SV_GMAGIC, does an mg_get() first. |
2403 | Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> macros. | |
645c22ef DM |
2404 | |
2405 | =cut | |
2406 | */ | |
2407 | ||
ff68c719 | 2408 | UV |
891f9566 | 2409 | Perl_sv_2uv_flags(pTHX_ register SV *sv, I32 flags) |
ff68c719 | 2410 | { |
2411 | if (!sv) | |
2412 | return 0; | |
2413 | if (SvGMAGICAL(sv)) { | |
891f9566 YST |
2414 | if (flags & SV_GMAGIC) |
2415 | mg_get(sv); | |
ff68c719 | 2416 | if (SvIOKp(sv)) |
2417 | return SvUVX(sv); | |
2418 | if (SvNOKp(sv)) | |
2419 | return U_V(SvNVX(sv)); | |
36477c24 | 2420 | if (SvPOKp(sv) && SvLEN(sv)) |
2421 | return asUV(sv); | |
3fe9a6f1 | 2422 | if (!SvROK(sv)) { |
d008e5eb | 2423 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
041457d9 | 2424 | if (!PL_localizing && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2425 | report_uninit(sv); |
c6ee37c5 | 2426 | } |
36477c24 | 2427 | return 0; |
3fe9a6f1 | 2428 | } |
ff68c719 | 2429 | } |
2430 | if (SvTHINKFIRST(sv)) { | |
2431 | if (SvROK(sv)) { | |
ff68c719 | 2432 | SV* tmpstr; |
1554e226 | 2433 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2434 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2435 | return SvUV(tmpstr); |
56431972 | 2436 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2437 | } |
765f542d NC |
2438 | if (SvIsCOW(sv)) { |
2439 | sv_force_normal_flags(sv, 0); | |
8a818333 | 2440 | } |
0336b60e | 2441 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2442 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2443 | report_uninit(sv); |
ff68c719 | 2444 | return 0; |
2445 | } | |
2446 | } | |
25da4f38 IZ |
2447 | if (SvIOKp(sv)) { |
2448 | if (SvIsUV(sv)) { | |
2449 | return SvUVX(sv); | |
2450 | } | |
2451 | else { | |
2452 | return (UV)SvIVX(sv); | |
2453 | } | |
ff68c719 | 2454 | } |
2455 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2456 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2457 | * without also getting a cached IV/UV from it at the same time | |
2458 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2459 | * IV or UV at same time to avoid this. */ | |
2460 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2461 | ||
25da4f38 IZ |
2462 | if (SvTYPE(sv) == SVt_NV) |
2463 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2464 | |
2465 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2466 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 2467 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2468 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2469 | #ifndef NV_PRESERVES_UV | |
2470 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2471 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2472 | /* Don't flag it as "accurately an integer" if the number | |
2473 | came from a (by definition imprecise) NV operation, and | |
2474 | we're outside the range of NV integer precision */ | |
2475 | #endif | |
2476 | ) { | |
2477 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2478 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2479 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2480 | PTR2UV(sv), |
2481 | SvNVX(sv), | |
2482 | SvIVX(sv))); | |
2483 | ||
2484 | } else { | |
2485 | /* IV not precise. No need to convert from PV, as NV | |
2486 | conversion would already have cached IV if it detected | |
2487 | that PV->IV would be better than PV->NV->IV | |
2488 | flags already correct - don't set public IOK. */ | |
2489 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2490 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2491 | PTR2UV(sv), |
2492 | SvNVX(sv), | |
2493 | SvIVX(sv))); | |
2494 | } | |
2495 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2496 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2497 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2498 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2499 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2500 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2501 | Hopefully for 2s complement IV_MIN is something like | |
2502 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2503 | } |
28e5dec8 | 2504 | else { |
607fa7f2 | 2505 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2506 | if ( |
2507 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2508 | #ifndef NV_PRESERVES_UV | |
2509 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2510 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2511 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2512 | /* Don't flag it as "accurately an integer" if the number | |
2513 | came from a (by definition imprecise) NV operation, and | |
2514 | we're outside the range of NV integer precision */ | |
2515 | #endif | |
2516 | ) | |
2517 | SvIOK_on(sv); | |
2518 | SvIsUV_on(sv); | |
1c846c1f | 2519 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2520 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2521 | PTR2UV(sv), |
28e5dec8 JH |
2522 | SvUVX(sv), |
2523 | SvUVX(sv))); | |
25da4f38 | 2524 | } |
ff68c719 | 2525 | } |
2526 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 | 2527 | UV value; |
504618e9 | 2528 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
25da4f38 IZ |
2529 | |
2530 | /* We want to avoid a possible problem when we cache a UV which | |
2531 | may be later translated to an NV, and the resulting NV is not | |
2532 | the translation of the initial data. | |
1c846c1f | 2533 | |
25da4f38 IZ |
2534 | This means that if we cache such a UV, we need to cache the |
2535 | NV as well. Moreover, we trade speed for space, and do not | |
2536 | cache the NV if not needed. | |
2537 | */ | |
16b7a9a4 | 2538 | |
c2988b20 NC |
2539 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2540 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2541 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2542 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2543 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2544 | sv_upgrade(sv, SVt_PVIV); |
2545 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2546 | } else if (SvTYPE(sv) < SVt_PVNV) |
2547 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2548 | |
c2988b20 NC |
2549 | /* If NV preserves UV then we only use the UV value if we know that |
2550 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2551 | then the value returned may have more precision than atof() will | |
2552 | return, even though it isn't accurate. */ | |
2553 | if ((numtype & (IS_NUMBER_IN_UV | |
2554 | #ifdef NV_PRESERVES_UV | |
2555 | | IS_NUMBER_NOT_INT | |
2556 | #endif | |
2557 | )) == IS_NUMBER_IN_UV) { | |
2558 | /* This won't turn off the public IOK flag if it was set above */ | |
2559 | (void)SvIOKp_on(sv); | |
2560 | ||
2561 | if (!(numtype & IS_NUMBER_NEG)) { | |
2562 | /* positive */; | |
2563 | if (value <= (UV)IV_MAX) { | |
45977657 | 2564 | SvIV_set(sv, (IV)value); |
28e5dec8 JH |
2565 | } else { |
2566 | /* it didn't overflow, and it was positive. */ | |
607fa7f2 | 2567 | SvUV_set(sv, value); |
28e5dec8 JH |
2568 | SvIsUV_on(sv); |
2569 | } | |
c2988b20 NC |
2570 | } else { |
2571 | /* 2s complement assumption */ | |
2572 | if (value <= (UV)IV_MIN) { | |
45977657 | 2573 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2574 | } else { |
2575 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2576 | I'm assuming it will be rare. */ |
c2988b20 NC |
2577 | if (SvTYPE(sv) < SVt_PVNV) |
2578 | sv_upgrade(sv, SVt_PVNV); | |
2579 | SvNOK_on(sv); | |
2580 | SvIOK_off(sv); | |
2581 | SvIOKp_on(sv); | |
9d6ce603 | 2582 | SvNV_set(sv, -(NV)value); |
45977657 | 2583 | SvIV_set(sv, IV_MIN); |
c2988b20 NC |
2584 | } |
2585 | } | |
2586 | } | |
2587 | ||
2588 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2589 | != IS_NUMBER_IN_UV) { | |
2590 | /* It wasn't an integer, or it overflowed the UV. */ | |
3f7c398e | 2591 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 | 2592 | |
c2988b20 | 2593 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
2594 | not_a_number(sv); |
2595 | ||
2596 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
2597 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
2598 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 2599 | #else |
1779d84d | 2600 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 2601 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
2602 | #endif |
2603 | ||
2604 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2605 | (void)SvIOKp_on(sv); |
2606 | (void)SvNOK_on(sv); | |
2607 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 2608 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2609 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2610 | SvIOK_on(sv); | |
2611 | } else { | |
2612 | /* Integer is imprecise. NOK, IOKp */ | |
2613 | } | |
2614 | /* UV will not work better than IV */ | |
2615 | } else { | |
2616 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2617 | SvIsUV_on(sv); | |
2618 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
607fa7f2 | 2619 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
2620 | SvIsUV_on(sv); |
2621 | } else { | |
607fa7f2 | 2622 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2623 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs |
2624 | NV preservse UV so can do correct comparison. */ | |
2625 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2626 | SvIOK_on(sv); | |
2627 | SvIsUV_on(sv); | |
2628 | } else { | |
2629 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
2630 | SvIsUV_on(sv); | |
2631 | } | |
2632 | } | |
2633 | } | |
28e5dec8 | 2634 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2635 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2636 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2637 | /* The UV slot will have been set from value returned by | |
2638 | grok_number above. The NV slot has just been set using | |
2639 | Atof. */ | |
560b0c46 | 2640 | SvNOK_on(sv); |
c2988b20 NC |
2641 | assert (SvIOKp(sv)); |
2642 | } else { | |
2643 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2644 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2645 | /* Small enough to preserve all bits. */ | |
2646 | (void)SvIOKp_on(sv); | |
2647 | SvNOK_on(sv); | |
45977657 | 2648 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2649 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
2650 | SvIOK_on(sv); | |
2651 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2652 | this NV is in the preserved range, therefore: */ | |
2653 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2654 | < (UV)IV_MAX)) { | |
32fdb065 | 2655 | 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 |
2656 | } |
2657 | } else | |
2658 | sv_2iuv_non_preserve (sv, numtype); | |
2659 | } | |
28e5dec8 | 2660 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 2661 | } |
ff68c719 | 2662 | } |
2663 | else { | |
d008e5eb | 2664 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
041457d9 | 2665 | if (!PL_localizing && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2666 | report_uninit(sv); |
c6ee37c5 | 2667 | } |
25da4f38 IZ |
2668 | if (SvTYPE(sv) < SVt_IV) |
2669 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2670 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 2671 | return 0; |
2672 | } | |
25da4f38 | 2673 | |
1d7c1841 GS |
2674 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
2675 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 2676 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 2677 | } |
2678 | ||
645c22ef DM |
2679 | /* |
2680 | =for apidoc sv_2nv | |
2681 | ||
2682 | Return the num value of an SV, doing any necessary string or integer | |
2683 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
2684 | macros. | |
2685 | ||
2686 | =cut | |
2687 | */ | |
2688 | ||
65202027 | 2689 | NV |
864dbfa3 | 2690 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
2691 | { |
2692 | if (!sv) | |
2693 | return 0.0; | |
8990e307 | 2694 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
2695 | mg_get(sv); |
2696 | if (SvNOKp(sv)) | |
2697 | return SvNVX(sv); | |
a0d0e21e | 2698 | if (SvPOKp(sv) && SvLEN(sv)) { |
041457d9 | 2699 | if (!SvIOKp(sv) && ckWARN(WARN_NUMERIC) && |
504618e9 | 2700 | !grok_number(SvPVX_const(sv), SvCUR(sv), NULL)) |
a0d0e21e | 2701 | not_a_number(sv); |
3f7c398e | 2702 | return Atof(SvPVX_const(sv)); |
a0d0e21e | 2703 | } |
25da4f38 | 2704 | if (SvIOKp(sv)) { |
1c846c1f | 2705 | if (SvIsUV(sv)) |
65202027 | 2706 | return (NV)SvUVX(sv); |
25da4f38 | 2707 | else |
65202027 | 2708 | return (NV)SvIVX(sv); |
25da4f38 | 2709 | } |
16d20bd9 | 2710 | if (!SvROK(sv)) { |
d008e5eb | 2711 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
041457d9 | 2712 | if (!PL_localizing && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2713 | report_uninit(sv); |
c6ee37c5 | 2714 | } |
66a1b24b | 2715 | return (NV)0; |
16d20bd9 | 2716 | } |
463ee0b2 | 2717 | } |
ed6116ce | 2718 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2719 | if (SvROK(sv)) { |
a0d0e21e | 2720 | SV* tmpstr; |
1554e226 | 2721 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2722 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2723 | return SvNV(tmpstr); |
56431972 | 2724 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 2725 | } |
765f542d NC |
2726 | if (SvIsCOW(sv)) { |
2727 | sv_force_normal_flags(sv, 0); | |
8a818333 | 2728 | } |
0336b60e | 2729 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 2730 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2731 | report_uninit(sv); |
ed6116ce LW |
2732 | return 0.0; |
2733 | } | |
79072805 LW |
2734 | } |
2735 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
2736 | if (SvTYPE(sv) == SVt_IV) |
2737 | sv_upgrade(sv, SVt_PVNV); | |
2738 | else | |
2739 | sv_upgrade(sv, SVt_NV); | |
906f284f | 2740 | #ifdef USE_LONG_DOUBLE |
097ee67d | 2741 | DEBUG_c({ |
f93f4e46 | 2742 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2743 | PerlIO_printf(Perl_debug_log, |
2744 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
2745 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2746 | RESTORE_NUMERIC_LOCAL(); |
2747 | }); | |
65202027 | 2748 | #else |
572bbb43 | 2749 | DEBUG_c({ |
f93f4e46 | 2750 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2751 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 2752 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2753 | RESTORE_NUMERIC_LOCAL(); |
2754 | }); | |
572bbb43 | 2755 | #endif |
79072805 LW |
2756 | } |
2757 | else if (SvTYPE(sv) < SVt_PVNV) | |
2758 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
2759 | if (SvNOKp(sv)) { |
2760 | return SvNVX(sv); | |
61604483 | 2761 | } |
59d8ce62 | 2762 | if (SvIOKp(sv)) { |
9d6ce603 | 2763 | SvNV_set(sv, SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv)); |
28e5dec8 JH |
2764 | #ifdef NV_PRESERVES_UV |
2765 | SvNOK_on(sv); | |
2766 | #else | |
2767 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
2768 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
2769 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
2770 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
2771 | SvNOK_on(sv); | |
2772 | else | |
2773 | SvNOKp_on(sv); | |
2774 | #endif | |
93a17b20 | 2775 | } |
748a9306 | 2776 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 | 2777 | UV value; |
3f7c398e | 2778 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
041457d9 | 2779 | if (!SvIOKp(sv) && !numtype && ckWARN(WARN_NUMERIC)) |
a0d0e21e | 2780 | not_a_number(sv); |
28e5dec8 | 2781 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
2782 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2783 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2784 | /* It's definitely an integer */ |
9d6ce603 | 2785 | SvNV_set(sv, (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value); |
c2988b20 | 2786 | } else |
3f7c398e | 2787 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 JH |
2788 | SvNOK_on(sv); |
2789 | #else | |
3f7c398e | 2790 | SvNV_set(sv, Atof(SvPVX_const(sv))); |
28e5dec8 JH |
2791 | /* Only set the public NV OK flag if this NV preserves the value in |
2792 | the PV at least as well as an IV/UV would. | |
2793 | Not sure how to do this 100% reliably. */ | |
2794 | /* if that shift count is out of range then Configure's test is | |
2795 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
2796 | UV_BITS */ | |
2797 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 2798 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 2799 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
2800 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
2801 | /* Can't use strtol etc to convert this string, so don't try. | |
2802 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
2803 | SvNOK_on(sv); | |
2804 | } else { | |
2805 | /* value has been set. It may not be precise. */ | |
2806 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
2807 | /* 2s complement assumption for (UV)IV_MIN */ | |
2808 | SvNOK_on(sv); /* Integer is too negative. */ | |
2809 | } else { | |
2810 | SvNOKp_on(sv); | |
2811 | SvIOKp_on(sv); | |
6fa402ec | 2812 | |
c2988b20 | 2813 | if (numtype & IS_NUMBER_NEG) { |
45977657 | 2814 | SvIV_set(sv, -(IV)value); |
c2988b20 | 2815 | } else if (value <= (UV)IV_MAX) { |
45977657 | 2816 | SvIV_set(sv, (IV)value); |
c2988b20 | 2817 | } else { |
607fa7f2 | 2818 | SvUV_set(sv, value); |
c2988b20 NC |
2819 | SvIsUV_on(sv); |
2820 | } | |
2821 | ||
2822 | if (numtype & IS_NUMBER_NOT_INT) { | |
2823 | /* I believe that even if the original PV had decimals, | |
2824 | they are lost beyond the limit of the FP precision. | |
2825 | However, neither is canonical, so both only get p | |
2826 | flags. NWC, 2000/11/25 */ | |
2827 | /* Both already have p flags, so do nothing */ | |
2828 | } else { | |
66a1b24b | 2829 | const NV nv = SvNVX(sv); |
c2988b20 NC |
2830 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { |
2831 | if (SvIVX(sv) == I_V(nv)) { | |
2832 | SvNOK_on(sv); | |
2833 | SvIOK_on(sv); | |
2834 | } else { | |
2835 | SvIOK_on(sv); | |
2836 | /* It had no "." so it must be integer. */ | |
2837 | } | |
2838 | } else { | |
2839 | /* between IV_MAX and NV(UV_MAX). | |
2840 | Could be slightly > UV_MAX */ | |
6fa402ec | 2841 | |
c2988b20 NC |
2842 | if (numtype & IS_NUMBER_NOT_INT) { |
2843 | /* UV and NV both imprecise. */ | |
2844 | } else { | |
66a1b24b | 2845 | const UV nv_as_uv = U_V(nv); |
c2988b20 NC |
2846 | |
2847 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
2848 | SvNOK_on(sv); | |
2849 | SvIOK_on(sv); | |
2850 | } else { | |
2851 | SvIOK_on(sv); | |
2852 | } | |
2853 | } | |
2854 | } | |
2855 | } | |
2856 | } | |
2857 | } | |
28e5dec8 | 2858 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 2859 | } |
79072805 | 2860 | else { |
041457d9 | 2861 | if (!PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP) && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2862 | report_uninit(sv); |
25da4f38 IZ |
2863 | if (SvTYPE(sv) < SVt_NV) |
2864 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
2865 | /* XXX Ilya implies that this is a bug in callers that assume this |
2866 | and ideally should be fixed. */ | |
25da4f38 | 2867 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2868 | return 0.0; |
79072805 | 2869 | } |
572bbb43 | 2870 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 2871 | DEBUG_c({ |
f93f4e46 | 2872 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
2873 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
2874 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
2875 | RESTORE_NUMERIC_LOCAL(); |
2876 | }); | |
65202027 | 2877 | #else |
572bbb43 | 2878 | DEBUG_c({ |
f93f4e46 | 2879 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 2880 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 2881 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
2882 | RESTORE_NUMERIC_LOCAL(); |
2883 | }); | |
572bbb43 | 2884 | #endif |
463ee0b2 | 2885 | return SvNVX(sv); |
79072805 LW |
2886 | } |
2887 | ||
645c22ef DM |
2888 | /* asIV(): extract an integer from the string value of an SV. |
2889 | * Caller must validate PVX */ | |
2890 | ||
76e3520e | 2891 | STATIC IV |
cea2e8a9 | 2892 | S_asIV(pTHX_ SV *sv) |
36477c24 | 2893 | { |
c2988b20 | 2894 | UV value; |
66a1b24b | 2895 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
c2988b20 NC |
2896 | |
2897 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2898 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2899 | /* It's definitely an integer */ |
c2988b20 NC |
2900 | if (numtype & IS_NUMBER_NEG) { |
2901 | if (value < (UV)IV_MIN) | |
2902 | return -(IV)value; | |
2903 | } else { | |
2904 | if (value < (UV)IV_MAX) | |
2905 | return (IV)value; | |
2906 | } | |
2907 | } | |
d008e5eb | 2908 | if (!numtype) { |
d008e5eb GS |
2909 | if (ckWARN(WARN_NUMERIC)) |
2910 | not_a_number(sv); | |
2911 | } | |
3f7c398e | 2912 | return I_V(Atof(SvPVX_const(sv))); |
36477c24 | 2913 | } |
2914 | ||
645c22ef DM |
2915 | /* asUV(): extract an unsigned integer from the string value of an SV |
2916 | * Caller must validate PVX */ | |
2917 | ||
76e3520e | 2918 | STATIC UV |
cea2e8a9 | 2919 | S_asUV(pTHX_ SV *sv) |
36477c24 | 2920 | { |
c2988b20 | 2921 | UV value; |
504618e9 | 2922 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), &value); |
36477c24 | 2923 | |
c2988b20 NC |
2924 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2925 | == IS_NUMBER_IN_UV) { | |
645c22ef | 2926 | /* It's definitely an integer */ |
6fa402ec | 2927 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
2928 | return value; |
2929 | } | |
d008e5eb | 2930 | if (!numtype) { |
d008e5eb GS |
2931 | if (ckWARN(WARN_NUMERIC)) |
2932 | not_a_number(sv); | |
2933 | } | |
3f7c398e | 2934 | return U_V(Atof(SvPVX_const(sv))); |
36477c24 | 2935 | } |
2936 | ||
645c22ef DM |
2937 | /* |
2938 | =for apidoc sv_2pv_nolen | |
2939 | ||
2940 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
2941 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
2942 | =cut | |
2943 | */ | |
2944 | ||
79072805 | 2945 | char * |
864dbfa3 | 2946 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d | 2947 | { |
dafda6d1 | 2948 | return sv_2pv(sv, 0); |
1fa8b10d JD |
2949 | } |
2950 | ||
645c22ef DM |
2951 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
2952 | * UV as a string towards the end of buf, and return pointers to start and | |
2953 | * end of it. | |
2954 | * | |
2955 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
2956 | */ | |
2957 | ||
864dbfa3 | 2958 | static char * |
aec46f14 | 2959 | S_uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
25da4f38 | 2960 | { |
25da4f38 IZ |
2961 | char *ptr = buf + TYPE_CHARS(UV); |
2962 | char *ebuf = ptr; | |
2963 | int sign; | |
25da4f38 IZ |
2964 | |
2965 | if (is_uv) | |
2966 | sign = 0; | |
2967 | else if (iv >= 0) { | |
2968 | uv = iv; | |
2969 | sign = 0; | |
2970 | } else { | |
2971 | uv = -iv; | |
2972 | sign = 1; | |
2973 | } | |
2974 | do { | |
eb160463 | 2975 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
2976 | } while (uv /= 10); |
2977 | if (sign) | |
2978 | *--ptr = '-'; | |
2979 | *peob = ebuf; | |
2980 | return ptr; | |
2981 | } | |
2982 | ||
09540bc3 JH |
2983 | /* sv_2pv() is now a macro using Perl_sv_2pv_flags(); |
2984 | * this function provided for binary compatibility only | |
2985 | */ | |
2986 | ||
2987 | char * | |
2988 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) | |
2989 | { | |
2990 | return sv_2pv_flags(sv, lp, SV_GMAGIC); | |
2991 | } | |
2992 | ||
645c22ef DM |
2993 | /* |
2994 | =for apidoc sv_2pv_flags | |
2995 | ||
ff276b08 | 2996 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
2997 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
2998 | if necessary. | |
2999 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
3000 | usually end up here too. | |
3001 | ||
3002 | =cut | |
3003 | */ | |
3004 | ||
8d6d96c1 HS |
3005 | char * |
3006 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
3007 | { | |
79072805 LW |
3008 | register char *s; |
3009 | int olderrno; | |
cb50f42d | 3010 | SV *tsv, *origsv; |
25da4f38 IZ |
3011 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
3012 | char *tmpbuf = tbuf; | |
79072805 | 3013 | |
463ee0b2 | 3014 | if (!sv) { |
cdb061a3 NC |
3015 | if (lp) |
3016 | *lp = 0; | |
73d840c0 | 3017 | return (char *)""; |
463ee0b2 | 3018 | } |
8990e307 | 3019 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
3020 | if (flags & SV_GMAGIC) |
3021 | mg_get(sv); | |
463ee0b2 | 3022 | if (SvPOKp(sv)) { |
cdb061a3 NC |
3023 | if (lp) |
3024 | *lp = SvCUR(sv); | |
10516c54 NC |
3025 | if (flags & SV_MUTABLE_RETURN) |
3026 | return SvPVX_mutable(sv); | |
4d84ee25 NC |
3027 | if (flags & SV_CONST_RETURN) |
3028 | return (char *)SvPVX_const(sv); | |
463ee0b2 LW |
3029 | return SvPVX(sv); |
3030 | } | |
cf2093f6 | 3031 | if (SvIOKp(sv)) { |
1c846c1f | 3032 | if (SvIsUV(sv)) |
57def98f | 3033 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 3034 | else |
57def98f | 3035 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 3036 | tsv = Nullsv; |
a0d0e21e | 3037 | goto tokensave; |
463ee0b2 LW |
3038 | } |
3039 | if (SvNOKp(sv)) { | |
2d4389e4 | 3040 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 3041 | tsv = Nullsv; |
a0d0e21e | 3042 | goto tokensave; |
463ee0b2 | 3043 | } |
16d20bd9 | 3044 | if (!SvROK(sv)) { |
d008e5eb | 3045 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
041457d9 | 3046 | if (!PL_localizing && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 3047 | report_uninit(sv); |
c6ee37c5 | 3048 | } |
cdb061a3 NC |
3049 | if (lp) |
3050 | *lp = 0; | |
73d840c0 | 3051 | return (char *)""; |
16d20bd9 | 3052 | } |
463ee0b2 | 3053 | } |
ed6116ce LW |
3054 | if (SvTHINKFIRST(sv)) { |
3055 | if (SvROK(sv)) { | |
a0d0e21e | 3056 | SV* tmpstr; |
e1ec3a88 | 3057 | register const char *typestr; |
1554e226 | 3058 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
b4b9a328 | 3059 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) { |
50adf7d2 NC |
3060 | /* Unwrap this: */ |
3061 | /* char *pv = lp ? SvPV(tmpstr, *lp) : SvPV_nolen(tmpstr); */ | |
3062 | ||
3063 | char *pv; | |
3064 | if ((SvFLAGS(tmpstr) & (SVf_POK)) == SVf_POK) { | |
3065 | if (flags & SV_CONST_RETURN) { | |
3066 | pv = (char *) SvPVX_const(tmpstr); | |
3067 | } else { | |
3068 | pv = (flags & SV_MUTABLE_RETURN) | |
3069 | ? SvPVX_mutable(tmpstr) : SvPVX(tmpstr); | |
3070 | } | |
3071 | if (lp) | |
3072 | *lp = SvCUR(tmpstr); | |
3073 | } else { | |
3074 | pv = sv_2pv_flags(tmpstr, lp, flags); | |
3075 | } | |
446eaa42 YST |
3076 | if (SvUTF8(tmpstr)) |
3077 | SvUTF8_on(sv); | |
3078 | else | |
3079 | SvUTF8_off(sv); | |
3080 | return pv; | |
3081 | } | |
cb50f42d | 3082 | origsv = sv; |
ed6116ce LW |
3083 | sv = (SV*)SvRV(sv); |
3084 | if (!sv) | |
e1ec3a88 | 3085 | typestr = "NULLREF"; |
ed6116ce | 3086 | else { |
f9277f47 IZ |
3087 | MAGIC *mg; |
3088 | ||
ed6116ce | 3089 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
3090 | case SVt_PVMG: |
3091 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 3092 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
faf82a0b | 3093 | == (SVs_OBJECT|SVs_SMG)) |
14befaf4 | 3094 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
e1ec3a88 | 3095 | const regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 3096 | |
2cd61cdb | 3097 | if (!mg->mg_ptr) { |
e1ec3a88 | 3098 | const char *fptr = "msix"; |
8782bef2 GB |
3099 | char reflags[6]; |
3100 | char ch; | |
3101 | int left = 0; | |
3102 | int right = 4; | |
ff385a1b | 3103 | char need_newline = 0; |
eb160463 | 3104 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 3105 | |
155aba94 | 3106 | while((ch = *fptr++)) { |
8782bef2 GB |
3107 | if(reganch & 1) { |
3108 | reflags[left++] = ch; | |
3109 | } | |
3110 | else { | |
3111 | reflags[right--] = ch; | |
3112 | } | |
3113 | reganch >>= 1; | |
3114 | } | |
3115 | if(left != 4) { | |
3116 | reflags[left] = '-'; | |
3117 | left = 5; | |
3118 | } | |
3119 | ||
3120 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
3121 | /* |
3122 | * If /x was used, we have to worry about a regex | |
3123 | * ending with a comment later being embedded | |
3124 | * within another regex. If so, we don't want this | |
3125 | * regex's "commentization" to leak out to the | |
3126 | * right part of the enclosing regex, we must cap | |
3127 | * it with a newline. | |
3128 | * | |
3129 | * So, if /x was used, we scan backwards from the | |
3130 | * end of the regex. If we find a '#' before we | |
3131 | * find a newline, we need to add a newline | |
3132 | * ourself. If we find a '\n' first (or if we | |
3133 | * don't find '#' or '\n'), we don't need to add | |
3134 | * anything. -jfriedl | |
3135 | */ | |
3136 | if (PMf_EXTENDED & re->reganch) | |
3137 | { | |
e1ec3a88 | 3138 | const char *endptr = re->precomp + re->prelen; |
ff385a1b JF |
3139 | while (endptr >= re->precomp) |
3140 | { | |
e1ec3a88 | 3141 | const char c = *(endptr--); |
ff385a1b JF |
3142 | if (c == '\n') |
3143 | break; /* don't need another */ | |
3144 | if (c == '#') { | |
3145 | /* we end while in a comment, so we | |
3146 | need a newline */ | |
3147 | mg->mg_len++; /* save space for it */ | |
3148 | need_newline = 1; /* note to add it */ | |
ab01544f | 3149 | break; |
ff385a1b JF |
3150 | } |
3151 | } | |
3152 | } | |
3153 | ||
a02a5408 | 3154 | Newx(mg->mg_ptr, mg->mg_len + 1 + left, char); |
8782bef2 GB |
3155 | Copy("(?", mg->mg_ptr, 2, char); |
3156 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3157 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3158 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3159 | if (need_newline) |
3160 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3161 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3162 | mg->mg_ptr[mg->mg_len] = 0; | |
3163 | } | |
3280af22 | 3164 | PL_reginterp_cnt += re->program[0].next_off; |
cb50f42d YST |
3165 | |
3166 | if (re->reganch & ROPT_UTF8) | |
3167 | SvUTF8_on(origsv); | |
3168 | else | |
3169 | SvUTF8_off(origsv); | |
cdb061a3 NC |
3170 | if (lp) |
3171 | *lp = mg->mg_len; | |
1bd3ad17 | 3172 | return mg->mg_ptr; |
f9277f47 IZ |
3173 | } |
3174 | /* Fall through */ | |
ed6116ce LW |
3175 | case SVt_NULL: |
3176 | case SVt_IV: | |
3177 | case SVt_NV: | |
3178 | case SVt_RV: | |
3179 | case SVt_PV: | |
3180 | case SVt_PVIV: | |
3181 | case SVt_PVNV: | |
e1ec3a88 AL |
3182 | case SVt_PVBM: typestr = SvROK(sv) ? "REF" : "SCALAR"; break; |
3183 | case SVt_PVLV: typestr = SvROK(sv) ? "REF" | |
be65207d DM |
3184 | /* tied lvalues should appear to be |
3185 | * scalars for backwards compatitbility */ | |
3186 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
3187 | ? "SCALAR" : "LVALUE"; break; | |
e1ec3a88 AL |
3188 | case SVt_PVAV: typestr = "ARRAY"; break; |
3189 | case SVt_PVHV: typestr = "HASH"; break; | |
3190 | case SVt_PVCV: typestr = "CODE"; break; | |
3191 | case SVt_PVGV: typestr = "GLOB"; break; | |
3192 | case SVt_PVFM: typestr = "FORMAT"; break; | |
3193 | case SVt_PVIO: typestr = "IO"; break; | |
3194 | default: typestr = "UNKNOWN"; break; | |
ed6116ce | 3195 | } |
46fc3d4c | 3196 | tsv = NEWSV(0,0); |
a5cb6b62 | 3197 | if (SvOBJECT(sv)) { |
bfcb3514 | 3198 | const char *name = HvNAME_get(SvSTASH(sv)); |
a5cb6b62 | 3199 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s(0x%"UVxf")", |
e1ec3a88 | 3200 | name ? name : "__ANON__" , typestr, PTR2UV(sv)); |
a5cb6b62 | 3201 | } |
ed6116ce | 3202 | else |
e1ec3a88 | 3203 | Perl_sv_setpvf(aTHX_ tsv, "%s(0x%"UVxf")", typestr, PTR2UV(sv)); |
a0d0e21e | 3204 | goto tokensaveref; |
463ee0b2 | 3205 | } |
cdb061a3 NC |
3206 | if (lp) |
3207 | *lp = strlen(typestr); | |
73d840c0 | 3208 | return (char *)typestr; |
79072805 | 3209 | } |
0336b60e | 3210 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3211 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 3212 | report_uninit(sv); |
cdb061a3 NC |
3213 | if (lp) |
3214 | *lp = 0; | |
73d840c0 | 3215 | return (char *)""; |
79072805 | 3216 | } |
79072805 | 3217 | } |
28e5dec8 JH |
3218 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3219 | /* I'm assuming that if both IV and NV are equally valid then | |
3220 | converting the IV is going to be more efficient */ | |
e1ec3a88 AL |
3221 | const U32 isIOK = SvIOK(sv); |
3222 | const U32 isUIOK = SvIsUV(sv); | |
28e5dec8 JH |
3223 | char buf[TYPE_CHARS(UV)]; |
3224 | char *ebuf, *ptr; | |
3225 | ||
3226 | if (SvTYPE(sv) < SVt_PVIV) | |
3227 | sv_upgrade(sv, SVt_PVIV); | |
3228 | if (isUIOK) | |
3229 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3230 | else | |
3231 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
5902b6a9 NC |
3232 | /* inlined from sv_setpvn */ |
3233 | SvGROW_mutable(sv, (STRLEN)(ebuf - ptr + 1)); | |
4d84ee25 | 3234 | Move(ptr,SvPVX_mutable(sv),ebuf - ptr,char); |
28e5dec8 JH |
3235 | SvCUR_set(sv, ebuf - ptr); |
3236 | s = SvEND(sv); | |
3237 | *s = '\0'; | |
3238 | if (isIOK) | |
3239 | SvIOK_on(sv); | |
3240 | else | |
3241 | SvIOKp_on(sv); | |
3242 | if (isUIOK) | |
3243 | SvIsUV_on(sv); | |
3244 | } | |
3245 | else if (SvNOKp(sv)) { | |
79072805 LW |
3246 | if (SvTYPE(sv) < SVt_PVNV) |
3247 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3248 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
5902b6a9 | 3249 | s = SvGROW_mutable(sv, NV_DIG + 20); |
79072805 | 3250 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3251 | #ifdef apollo |
463ee0b2 | 3252 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3253 | (void)strcpy(s,"0"); |
3254 | else | |
3255 | #endif /*apollo*/ | |
bbce6d69 | 3256 | { |
2d4389e4 | 3257 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3258 | } |
79072805 | 3259 | errno = olderrno; |
a0d0e21e LW |
3260 | #ifdef FIXNEGATIVEZERO |
3261 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3262 | strcpy(s,"0"); | |
3263 | #endif | |
79072805 LW |
3264 | while (*s) s++; |
3265 | #ifdef hcx | |
3266 | if (s[-1] == '.') | |
46fc3d4c | 3267 | *--s = '\0'; |
79072805 LW |
3268 | #endif |
3269 | } | |
79072805 | 3270 | else { |
041457d9 | 3271 | if (!PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP) && ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 3272 | report_uninit(sv); |
cdb061a3 | 3273 | if (lp) |
a0d0e21e | 3274 | *lp = 0; |
25da4f38 IZ |
3275 | if (SvTYPE(sv) < SVt_PV) |
3276 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3277 | sv_upgrade(sv, SVt_PV); | |
73d840c0 | 3278 | return (char *)""; |
79072805 | 3279 | } |
cdb061a3 NC |
3280 | { |
3281 | STRLEN len = s - SvPVX_const(sv); | |
3282 | if (lp) | |
3283 | *lp = len; | |
3284 | SvCUR_set(sv, len); | |
3285 | } | |
79072805 | 3286 | SvPOK_on(sv); |
1d7c1841 | 3287 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3f7c398e | 3288 | PTR2UV(sv),SvPVX_const(sv))); |
4d84ee25 NC |
3289 | if (flags & SV_CONST_RETURN) |
3290 | return (char *)SvPVX_const(sv); | |
10516c54 NC |
3291 | if (flags & SV_MUTABLE_RETURN) |
3292 | return SvPVX_mutable(sv); | |
463ee0b2 | 3293 | return SvPVX(sv); |
a0d0e21e LW |
3294 | |
3295 | tokensave: | |
3296 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3297 | /* Sneaky stuff here */ | |
3298 | ||
3299 | tokensaveref: | |
46fc3d4c | 3300 | if (!tsv) |
96827780 | 3301 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3302 | sv_2mortal(tsv); |
cdb061a3 NC |
3303 | if (lp) |
3304 | *lp = SvCUR(tsv); | |
46fc3d4c | 3305 | return SvPVX(tsv); |
a0d0e21e LW |
3306 | } |
3307 | else { | |
27da23d5 | 3308 | dVAR; |
a0d0e21e | 3309 | STRLEN len; |
73d840c0 | 3310 | const char *t; |
46fc3d4c | 3311 | |
3312 | if (tsv) { | |
3313 | sv_2mortal(tsv); | |
3f7c398e | 3314 | t = SvPVX_const(tsv); |
46fc3d4c | 3315 | len = SvCUR(tsv); |
3316 | } | |
3317 | else { | |
96827780 MB |
3318 | t = tmpbuf; |
3319 | len = strlen(tmpbuf); | |
46fc3d4c | 3320 | } |
a0d0e21e | 3321 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3322 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3323 | t = "0"; | |
3324 | len = 1; | |
3325 | } | |
a0d0e21e | 3326 | #endif |
862a34c6 | 3327 | SvUPGRADE(sv, SVt_PV); |
cdb061a3 NC |
3328 | if (lp) |
3329 | *lp = len; | |
5902b6a9 | 3330 | s = SvGROW_mutable(sv, len + 1); |
a0d0e21e | 3331 | SvCUR_set(sv, len); |
6bf554b4 | 3332 | SvPOKp_on(sv); |
490a0e98 | 3333 | return memcpy(s, t, len + 1); |
a0d0e21e | 3334 | } |
463ee0b2 LW |
3335 | } |
3336 | ||
645c22ef | 3337 | /* |
6050d10e JP |
3338 | =for apidoc sv_copypv |
3339 | ||
3340 | Copies a stringified representation of the source SV into the | |
3341 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3342 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3343 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3344 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3345 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3346 | would lose the UTF-8'ness of the PV. |
3347 | ||
3348 | =cut | |
3349 | */ | |
3350 | ||
3351 | void | |
3352 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3353 | { | |
446eaa42 | 3354 | STRLEN len; |
53c1dcc0 | 3355 | const char * const s = SvPV_const(ssv,len); |
cb50f42d | 3356 | sv_setpvn(dsv,s,len); |
446eaa42 | 3357 | if (SvUTF8(ssv)) |
cb50f42d | 3358 | SvUTF8_on(dsv); |
446eaa42 | 3359 | else |
cb50f42d | 3360 | SvUTF8_off(dsv); |
6050d10e JP |
3361 | } |
3362 | ||
3363 | /* | |
645c22ef DM |
3364 | =for apidoc sv_2pvbyte_nolen |
3365 | ||
3366 | Return a pointer to the byte-encoded representation of the SV. | |
1e54db1a | 3367 | May cause the SV to be downgraded from UTF-8 as a side-effect. |
645c22ef DM |
3368 | |
3369 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3370 | ||
3371 | =cut | |
3372 | */ | |
3373 | ||
7340a771 GS |
3374 | char * |
3375 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3376 | { | |
dafda6d1 | 3377 | return sv_2pvbyte(sv, 0); |
7340a771 GS |
3378 | } |
3379 | ||
645c22ef DM |
3380 | /* |
3381 | =for apidoc sv_2pvbyte | |
3382 | ||
3383 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
1e54db1a | 3384 | to its length. May cause the SV to be downgraded from UTF-8 as a |
645c22ef DM |
3385 | side-effect. |
3386 | ||
3387 | Usually accessed via the C<SvPVbyte> macro. | |
3388 | ||
3389 | =cut | |
3390 | */ | |
3391 | ||
7340a771 GS |
3392 | char * |
3393 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3394 | { | |
0875d2fe | 3395 | sv_utf8_downgrade(sv,0); |
97972285 | 3396 | return lp ? SvPV(sv,*lp) : SvPV_nolen(sv); |
7340a771 GS |
3397 | } |
3398 | ||
645c22ef DM |
3399 | /* |
3400 | =for apidoc sv_2pvutf8_nolen | |
3401 | ||
1e54db1a JH |
3402 | Return a pointer to the UTF-8-encoded representation of the SV. |
3403 | May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3404 | |
3405 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3406 | ||
3407 | =cut | |
3408 | */ | |
3409 | ||
7340a771 GS |
3410 | char * |
3411 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3412 | { | |
dafda6d1 | 3413 | return sv_2pvutf8(sv, 0); |
7340a771 GS |
3414 | } |
3415 | ||
645c22ef DM |
3416 | /* |
3417 | =for apidoc sv_2pvutf8 | |
3418 | ||
1e54db1a JH |
3419 | Return a pointer to the UTF-8-encoded representation of the SV, and set *lp |
3420 | to its length. May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3421 | |
3422 | Usually accessed via the C<SvPVutf8> macro. | |
3423 | ||
3424 | =cut | |
3425 | */ | |
3426 | ||
7340a771 GS |
3427 | char * |
3428 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3429 | { | |
560a288e | 3430 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3431 | return SvPV(sv,*lp); |
7340a771 | 3432 | } |
1c846c1f | 3433 | |
645c22ef DM |
3434 | /* |
3435 | =for apidoc sv_2bool | |
3436 | ||
3437 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3438 | sv_true() or its macro equivalent. |
645c22ef DM |
3439 | |
3440 | =cut | |
3441 | */ | |
3442 | ||
463ee0b2 | 3443 | bool |
864dbfa3 | 3444 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3445 | { |
5b295bef | 3446 | SvGETMAGIC(sv); |
463ee0b2 | 3447 | |
a0d0e21e LW |
3448 | if (!SvOK(sv)) |
3449 | return 0; | |
3450 | if (SvROK(sv)) { | |
a0d0e21e | 3451 | SV* tmpsv; |
1554e226 | 3452 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3453 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3454 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3455 | return SvRV(sv) != 0; |
3456 | } | |
463ee0b2 | 3457 | if (SvPOKp(sv)) { |
53c1dcc0 AL |
3458 | register XPV* const Xpvtmp = (XPV*)SvANY(sv); |
3459 | if (Xpvtmp && | |
339049b0 | 3460 | (*sv->sv_u.svu_pv > '0' || |
11343788 | 3461 | Xpvtmp->xpv_cur > 1 || |
339049b0 | 3462 | (Xpvtmp->xpv_cur && *sv->sv_u.svu_pv != '0'))) |
463ee0b2 LW |
3463 | return 1; |
3464 | else | |
3465 | return 0; | |
3466 | } | |
3467 | else { | |
3468 | if (SvIOKp(sv)) | |
3469 | return SvIVX(sv) != 0; | |
3470 | else { | |
3471 | if (SvNOKp(sv)) | |
3472 | return SvNVX(sv) != 0.0; | |
3473 | else | |
3474 | return FALSE; | |
3475 | } | |
3476 | } | |
79072805 LW |
3477 | } |
3478 | ||
09540bc3 JH |
3479 | /* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags(); |
3480 | * this function provided for binary compatibility only | |
3481 | */ | |
3482 | ||
3483 | ||
3484 | STRLEN | |
3485 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) | |
3486 | { | |
3487 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); | |
3488 | } | |
3489 | ||
c461cf8f JH |
3490 | /* |
3491 | =for apidoc sv_utf8_upgrade | |
3492 | ||
78ea37eb | 3493 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3494 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3495 | Always sets the SvUTF8 flag to avoid future validity checks even |
3496 | if all the bytes have hibit clear. | |
c461cf8f | 3497 | |
13a6c0e0 JH |
3498 | This is not as a general purpose byte encoding to Unicode interface: |
3499 | use the Encode extension for that. | |
3500 | ||
8d6d96c1 HS |
3501 | =for apidoc sv_utf8_upgrade_flags |
3502 | ||
78ea37eb | 3503 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3504 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3505 | Always sets the SvUTF8 flag to avoid future validity checks even |
3506 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3507 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3508 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3509 | ||
13a6c0e0 JH |
3510 | This is not as a general purpose byte encoding to Unicode interface: |
3511 | use the Encode extension for that. | |
3512 | ||
8d6d96c1 HS |
3513 | =cut |
3514 | */ | |
3515 | ||
3516 | STRLEN | |
3517 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3518 | { | |
808c356f RGS |
3519 | if (sv == &PL_sv_undef) |
3520 | return 0; | |
e0e62c2a NIS |
3521 | if (!SvPOK(sv)) { |
3522 | STRLEN len = 0; | |
d52b7888 NC |
3523 | if (SvREADONLY(sv) && (SvPOKp(sv) || SvIOKp(sv) || SvNOKp(sv))) { |
3524 | (void) sv_2pv_flags(sv,&len, flags); | |
3525 | if (SvUTF8(sv)) | |
3526 | return len; | |
3527 | } else { | |
3528 | (void) SvPV_force(sv,len); | |
3529 | } | |
e0e62c2a | 3530 | } |
4411f3b6 | 3531 | |
f5cee72b | 3532 | if (SvUTF8(sv)) { |
5fec3b1d | 3533 | return SvCUR(sv); |
f5cee72b | 3534 | } |
5fec3b1d | 3535 | |
765f542d NC |
3536 | if (SvIsCOW(sv)) { |
3537 | sv_force_normal_flags(sv, 0); | |
db42d148 NIS |
3538 | } |
3539 | ||
88632417 | 3540 | if (PL_encoding && !(flags & SV_UTF8_NO_ENCODING)) |
799ef3cb | 3541 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3542 | else { /* Assume Latin-1/EBCDIC */ |
c4e7c712 NC |
3543 | /* This function could be much more efficient if we |
3544 | * had a FLAG in SVs to signal if there are any hibit | |
3545 | * chars in the PV. Given that there isn't such a flag | |
3546 | * make the loop as fast as possible. */ | |
93524f2b NC |
3547 | const U8 *s = (U8 *) SvPVX_const(sv); |
3548 | const U8 *e = (U8 *) SvEND(sv); | |
3549 | const U8 *t = s; | |
c4e7c712 NC |
3550 | int hibit = 0; |
3551 | ||
3552 | while (t < e) { | |
53c1dcc0 | 3553 | const U8 ch = *t++; |
c4e7c712 NC |
3554 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) |
3555 | break; | |
3556 | } | |
3557 | if (hibit) { | |
3558 | STRLEN len = SvCUR(sv) + 1; /* Plus the \0 */ | |
53c1dcc0 | 3559 | U8 * const recoded = bytes_to_utf8((U8*)s, &len); |
c4e7c712 NC |
3560 | |
3561 | SvPV_free(sv); /* No longer using what was there before. */ | |
3562 | ||
1e2ebb21 | 3563 | SvPV_set(sv, (char*)recoded); |
c4e7c712 NC |
3564 | SvCUR_set(sv, len - 1); |
3565 | SvLEN_set(sv, len); /* No longer know the real size. */ | |
3566 | } | |
3567 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ | |
3568 | SvUTF8_on(sv); | |
560a288e | 3569 | } |
4411f3b6 | 3570 | return SvCUR(sv); |
560a288e GS |
3571 | } |
3572 | ||
c461cf8f JH |
3573 | /* |
3574 | =for apidoc sv_utf8_downgrade | |
3575 | ||
78ea37eb TS |
3576 | Attempts to convert the PV of an SV from characters to bytes. |
3577 | If the PV contains a character beyond byte, this conversion will fail; | |
3578 | in this case, either returns false or, if C<fail_ok> is not | |
c461cf8f JH |
3579 | true, croaks. |
3580 | ||
13a6c0e0 JH |
3581 | This is not as a general purpose Unicode to byte encoding interface: |
3582 | use the Encode extension for that. | |
3583 | ||
c461cf8f JH |
3584 | =cut |
3585 | */ | |
3586 | ||
560a288e GS |
3587 | bool |
3588 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3589 | { | |
78ea37eb | 3590 | if (SvPOKp(sv) && SvUTF8(sv)) { |
fa301091 | 3591 | if (SvCUR(sv)) { |
03cfe0ae | 3592 | U8 *s; |
652088fc | 3593 | STRLEN len; |
fa301091 | 3594 | |
765f542d NC |
3595 | if (SvIsCOW(sv)) { |
3596 | sv_force_normal_flags(sv, 0); | |
3597 | } | |
03cfe0ae NIS |
3598 | s = (U8 *) SvPV(sv, len); |
3599 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3600 | if (fail_ok) |
3601 | return FALSE; | |
3602 | else { | |
3603 | if (PL_op) | |
3604 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3605 | OP_DESC(PL_op)); |
fa301091 JH |
3606 | else |
3607 | Perl_croak(aTHX_ "Wide character"); | |
3608 | } | |
4b3603a4 | 3609 | } |
b162af07 | 3610 | SvCUR_set(sv, len); |
67e989fb | 3611 | } |
560a288e | 3612 | } |
ffebcc3e | 3613 | SvUTF8_off(sv); |
560a288e GS |
3614 | return TRUE; |
3615 | } | |
3616 | ||
c461cf8f JH |
3617 | /* |
3618 | =for apidoc sv_utf8_encode | |
3619 | ||
78ea37eb TS |
3620 | Converts the PV of an SV to UTF-8, but then turns the C<SvUTF8> |
3621 | flag off so that it looks like octets again. | |
c461cf8f JH |
3622 | |
3623 | =cut | |
3624 | */ | |
3625 | ||
560a288e GS |
3626 | void |
3627 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
3628 | { | |
4411f3b6 | 3629 | (void) sv_utf8_upgrade(sv); |
4c94c214 NC |
3630 | if (SvIsCOW(sv)) { |
3631 | sv_force_normal_flags(sv, 0); | |
3632 | } | |
3633 | if (SvREADONLY(sv)) { | |
3634 | Perl_croak(aTHX_ PL_no_modify); | |
3635 | } | |
560a288e GS |
3636 | SvUTF8_off(sv); |
3637 | } | |
3638 | ||
4411f3b6 NIS |
3639 | /* |
3640 | =for apidoc sv_utf8_decode | |
3641 | ||
78ea37eb TS |
3642 | If the PV of the SV is an octet sequence in UTF-8 |
3643 | and contains a multiple-byte character, the C<SvUTF8> flag is turned on | |
3644 | so that it looks like a character. If the PV contains only single-byte | |
3645 | characters, the C<SvUTF8> flag stays being off. | |
3646 | Scans PV for validity and returns false if the PV is invalid UTF-8. | |
4411f3b6 NIS |
3647 | |
3648 | =cut | |
3649 | */ | |
3650 | ||
560a288e GS |
3651 | bool |
3652 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
3653 | { | |
78ea37eb | 3654 | if (SvPOKp(sv)) { |
93524f2b NC |
3655 | const U8 *c; |
3656 | const U8 *e; | |
9cbac4c7 | 3657 | |
645c22ef DM |
3658 | /* The octets may have got themselves encoded - get them back as |
3659 | * bytes | |
3660 | */ | |
3661 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
3662 | return FALSE; |
3663 | ||
3664 | /* it is actually just a matter of turning the utf8 flag on, but | |
3665 | * we want to make sure everything inside is valid utf8 first. | |
3666 | */ | |
93524f2b | 3667 | c = (const U8 *) SvPVX_const(sv); |
63cd0674 | 3668 | if (!is_utf8_string(c, SvCUR(sv)+1)) |
67e989fb | 3669 | return FALSE; |
93524f2b | 3670 | e = (const U8 *) SvEND(sv); |
511c2ff0 | 3671 | while (c < e) { |
b64e5050 | 3672 | const U8 ch = *c++; |
c4d5f83a | 3673 | if (!UTF8_IS_INVARIANT(ch)) { |
67e989fb JH |
3674 | SvUTF8_on(sv); |
3675 | break; | |
3676 | } | |
560a288e | 3677 | } |
560a288e GS |
3678 | } |
3679 | return TRUE; | |
3680 | } | |
3681 | ||
09540bc3 JH |
3682 | /* sv_setsv() is now a macro using Perl_sv_setsv_flags(); |
3683 | * this function provided for binary compatibility only | |
3684 | */ | |
3685 | ||
3686 | void | |
3687 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) | |
3688 | { | |
3689 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); | |
3690 | } | |
3691 | ||
954c1994 GS |
3692 | /* |
3693 | =for apidoc sv_setsv | |
3694 | ||
645c22ef DM |
3695 | Copies the contents of the source SV C<ssv> into the destination SV |
3696 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3697 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3698 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3699 | content of the destination. | |
3700 | ||
3701 | You probably want to use one of the assortment of wrappers, such as | |
3702 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3703 | C<SvSetMagicSV_nosteal>. | |
3704 | ||
8d6d96c1 HS |
3705 | =for apidoc sv_setsv_flags |
3706 | ||
645c22ef DM |
3707 | Copies the contents of the source SV C<ssv> into the destination SV |
3708 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
3709 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
3710 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
3711 | content of the destination. | |
3712 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
5fcdf167 NC |
3713 | C<ssv> if appropriate, else not. If the C<flags> parameter has the |
3714 | C<NOSTEAL> bit set then the buffers of temps will not be stolen. <sv_setsv> | |
3715 | and C<sv_setsv_nomg> are implemented in terms of this function. | |
645c22ef DM |
3716 | |
3717 | You probably want to use one of the assortment of wrappers, such as | |
3718 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
3719 | C<SvSetMagicSV_nosteal>. | |
3720 | ||
3721 | This is the primary function for copying scalars, and most other | |
3722 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
3723 | |
3724 | =cut | |
3725 | */ | |
3726 | ||
3727 | void | |
3728 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
3729 | { | |
8990e307 LW |
3730 | register U32 sflags; |
3731 | register int dtype; | |
3732 | register int stype; | |
463ee0b2 | 3733 | |
79072805 LW |
3734 | if (sstr == dstr) |
3735 | return; | |
765f542d | 3736 | SV_CHECK_THINKFIRST_COW_DROP(dstr); |
79072805 | 3737 | if (!sstr) |
3280af22 | 3738 | sstr = &PL_sv_undef; |
8990e307 LW |
3739 | stype = SvTYPE(sstr); |
3740 | dtype = SvTYPE(dstr); | |
79072805 | 3741 | |
a0d0e21e | 3742 | SvAMAGIC_off(dstr); |
7a5fa8a2 | 3743 | if ( SvVOK(dstr) ) |
ece467f9 JP |
3744 | { |
3745 | /* need to nuke the magic */ | |
3746 | mg_free(dstr); | |
3747 | SvRMAGICAL_off(dstr); | |
3748 | } | |
9e7bc3e8 | 3749 | |
463ee0b2 | 3750 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 3751 | |
8990e307 | 3752 | switch (stype) { |
79072805 | 3753 | case SVt_NULL: |
aece5585 | 3754 | undef_sstr: |
20408e3c GS |
3755 | if (dtype != SVt_PVGV) { |
3756 | (void)SvOK_off(dstr); | |
3757 | return; | |
3758 | } | |
3759 | break; | |
463ee0b2 | 3760 | case SVt_IV: |
aece5585 GA |
3761 | if (SvIOK(sstr)) { |
3762 | switch (dtype) { | |
3763 | case SVt_NULL: | |
8990e307 | 3764 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
3765 | break; |
3766 | case SVt_NV: | |
8990e307 | 3767 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3768 | break; |
3769 | case SVt_RV: | |
3770 | case SVt_PV: | |
a0d0e21e | 3771 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
3772 | break; |
3773 | } | |
3774 | (void)SvIOK_only(dstr); | |
45977657 | 3775 | SvIV_set(dstr, SvIVX(sstr)); |
25da4f38 IZ |
3776 | if (SvIsUV(sstr)) |
3777 | SvIsUV_on(dstr); | |
27c9684d AP |
3778 | if (SvTAINTED(sstr)) |
3779 | SvTAINT(dstr); | |
aece5585 | 3780 | return; |
8990e307 | 3781 | } |
aece5585 GA |
3782 | goto undef_sstr; |
3783 | ||
463ee0b2 | 3784 | case SVt_NV: |
aece5585 GA |
3785 | if (SvNOK(sstr)) { |
3786 | switch (dtype) { | |
3787 | case SVt_NULL: | |
3788 | case SVt_IV: | |
8990e307 | 3789 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
3790 | break; |
3791 | case SVt_RV: | |
3792 | case SVt_PV: | |
3793 | case SVt_PVIV: | |
a0d0e21e | 3794 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
3795 | break; |
3796 | } | |
9d6ce603 | 3797 | SvNV_set(dstr, SvNVX(sstr)); |
aece5585 | 3798 | (void)SvNOK_only(dstr); |
27c9684d AP |
3799 | if (SvTAINTED(sstr)) |
3800 | SvTAINT(dstr); | |
aece5585 | 3801 | return; |
8990e307 | 3802 | } |
aece5585 GA |
3803 | goto undef_sstr; |
3804 | ||
ed6116ce | 3805 | case SVt_RV: |
8990e307 | 3806 | if (dtype < SVt_RV) |
ed6116ce | 3807 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 3808 | else if (dtype == SVt_PVGV && |
23bb1b96 | 3809 | SvROK(sstr) && SvTYPE(SvRV(sstr)) == SVt_PVGV) { |
c07a80fd | 3810 | sstr = SvRV(sstr); |
a5f75d66 | 3811 | if (sstr == dstr) { |
1d7c1841 GS |
3812 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3813 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3814 | { | |
a5f75d66 | 3815 | GvIMPORTED_on(dstr); |
1d7c1841 | 3816 | } |
a5f75d66 AD |
3817 | GvMULTI_on(dstr); |
3818 | return; | |
3819 | } | |
c07a80fd | 3820 | goto glob_assign; |
3821 | } | |
ed6116ce | 3822 | break; |
fc36a67e | 3823 | case SVt_PVFM: |
f8c7b90f | 3824 | #ifdef PERL_OLD_COPY_ON_WRITE |
d89fc664 NC |
3825 | if ((SvFLAGS(sstr) & CAN_COW_MASK) == CAN_COW_FLAGS) { |
3826 | if (dtype < SVt_PVIV) | |
3827 | sv_upgrade(dstr, SVt_PVIV); | |
3828 | break; | |
3829 | } | |
3830 | /* Fall through */ | |
3831 | #endif | |
3832 | case SVt_PV: | |
8990e307 | 3833 | if (dtype < SVt_PV) |
463ee0b2 | 3834 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
3835 | break; |
3836 | case SVt_PVIV: | |
8990e307 | 3837 | if (dtype < SVt_PVIV) |
463ee0b2 | 3838 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
3839 | break; |
3840 | case SVt_PVNV: | |
8990e307 | 3841 | if (dtype < SVt_PVNV) |
463ee0b2 | 3842 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 3843 | break; |
4633a7c4 LW |
3844 | case SVt_PVAV: |
3845 | case SVt_PVHV: | |
3846 | case SVt_PVCV: | |
4633a7c4 | 3847 | case SVt_PVIO: |
a3b680e6 AL |
3848 | { |
3849 | const char * const type = sv_reftype(sstr,0); | |
533c011a | 3850 | if (PL_op) |
a3b680e6 | 3851 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", type, OP_NAME(PL_op)); |
4633a7c4 | 3852 | else |
a3b680e6 AL |
3853 | Perl_croak(aTHX_ "Bizarre copy of %s", type); |
3854 | } | |
4633a7c4 LW |
3855 | break; |
3856 | ||
79072805 | 3857 | case SVt_PVGV: |
8990e307 | 3858 | if (dtype <= SVt_PVGV) { |
c07a80fd | 3859 | glob_assign: |
a5f75d66 | 3860 | if (dtype != SVt_PVGV) { |
a3b680e6 AL |
3861 | const char * const name = GvNAME(sstr); |
3862 | const STRLEN len = GvNAMELEN(sstr); | |
b76195c2 DM |
3863 | /* don't upgrade SVt_PVLV: it can hold a glob */ |
3864 | if (dtype != SVt_PVLV) | |
3865 | sv_upgrade(dstr, SVt_PVGV); | |
14befaf4 | 3866 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
e15faf7d NC |
3867 | GvSTASH(dstr) = GvSTASH(sstr); |
3868 | if (GvSTASH(dstr)) | |
3869 | Perl_sv_add_backref(aTHX_ (SV*)GvSTASH(dstr), dstr); | |
a0d0e21e LW |
3870 | GvNAME(dstr) = savepvn(name, len); |
3871 | GvNAMELEN(dstr) = len; | |
3872 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
3873 | } | |
7bac28a0 | 3874 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
3875 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
3876 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 3877 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 3878 | GvNAME(dstr)); |
5bd07a3d | 3879 | |
7fb37951 AMS |
3880 | #ifdef GV_UNIQUE_CHECK |
3881 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3882 | Perl_croak(aTHX_ PL_no_modify); |
3883 | } | |
3884 | #endif | |
3885 | ||
a0d0e21e | 3886 | (void)SvOK_off(dstr); |
a5f75d66 | 3887 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 3888 | gp_free((GV*)dstr); |
79072805 | 3889 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
3890 | if (SvTAINTED(sstr)) |
3891 | SvTAINT(dstr); | |
1d7c1841 GS |
3892 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
3893 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
3894 | { | |
a5f75d66 | 3895 | GvIMPORTED_on(dstr); |
1d7c1841 | 3896 | } |
a5f75d66 | 3897 | GvMULTI_on(dstr); |
79072805 LW |
3898 | return; |
3899 | } | |
3900 | /* FALL THROUGH */ | |
3901 | ||
3902 | default: | |
8d6d96c1 | 3903 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 3904 | mg_get(sstr); |
eb160463 | 3905 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
3906 | stype = SvTYPE(sstr); |
3907 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
3908 | goto glob_assign; | |
3909 | } | |
3910 | } | |
ded42b9f | 3911 | if (stype == SVt_PVLV) |
862a34c6 | 3912 | SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 3913 | else |
862a34c6 | 3914 | SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
3915 | } |
3916 | ||
8990e307 LW |
3917 | sflags = SvFLAGS(sstr); |
3918 | ||
3919 | if (sflags & SVf_ROK) { | |
3920 | if (dtype >= SVt_PV) { | |
3921 | if (dtype == SVt_PVGV) { | |
3922 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
3923 | SV *dref = 0; | |
a3b680e6 | 3924 | const int intro = GvINTRO(dstr); |
a0d0e21e | 3925 | |
7fb37951 AMS |
3926 | #ifdef GV_UNIQUE_CHECK |
3927 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
3928 | Perl_croak(aTHX_ PL_no_modify); |
3929 | } | |
3930 | #endif | |
3931 | ||
a0d0e21e | 3932 | if (intro) { |
a5f75d66 | 3933 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 3934 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 3935 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 3936 | } |
a5f75d66 | 3937 | GvMULTI_on(dstr); |
8990e307 LW |
3938 | switch (SvTYPE(sref)) { |
3939 | case SVt_PVAV: | |
a0d0e21e | 3940 | if (intro) |
890ed176 | 3941 | SAVEGENERICSV(GvAV(dstr)); |
a0d0e21e LW |
3942 | else |
3943 | dref = (SV*)GvAV(dstr); | |
8990e307 | 3944 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 3945 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
3946 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3947 | { | |
a5f75d66 | 3948 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 3949 | } |
8990e307 LW |
3950 | break; |
3951 | case SVt_PVHV: | |
a0d0e21e | 3952 | if (intro) |
890ed176 | 3953 | SAVEGENERICSV(GvHV(dstr)); |
a0d0e21e LW |
3954 | else |
3955 | dref = (SV*)GvHV(dstr); | |
8990e307 | 3956 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 3957 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
3958 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
3959 | { | |
a5f75d66 | 3960 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 3961 | } |
8990e307 LW |
3962 | break; |
3963 | case SVt_PVCV: | |
8ebc5c01 | 3964 | if (intro) { |
3965 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
3966 | SvREFCNT_dec(GvCV(dstr)); | |
3967 | GvCV(dstr) = Nullcv; | |
68dc0745 | 3968 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 3969 | PL_sub_generation++; |
8ebc5c01 | 3970 | } |
890ed176 | 3971 | SAVEGENERICSV(GvCV(dstr)); |
8ebc5c01 | 3972 | } |
68dc0745 | 3973 | else |
3974 | dref = (SV*)GvCV(dstr); | |
3975 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 3976 | CV* cv = GvCV(dstr); |
4633a7c4 | 3977 | if (cv) { |
68dc0745 | 3978 | if (!GvCVGEN((GV*)dstr) && |
3979 | (CvROOT(cv) || CvXSUB(cv))) | |
3980 | { | |
7bac28a0 | 3981 | /* ahem, death to those who redefine |
3982 | * active sort subs */ | |
3280af22 NIS |
3983 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
3984 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 3985 | Perl_croak(aTHX_ |
7bac28a0 | 3986 | "Can't redefine active sort subroutine %s", |
3987 | GvENAME((GV*)dstr)); | |
beab0874 JT |
3988 | /* Redefining a sub - warning is mandatory if |
3989 | it was a const and its value changed. */ | |
3990 | if (ckWARN(WARN_REDEFINE) | |
3991 | || (CvCONST(cv) | |
3992 | && (!CvCONST((CV*)sref) | |
3993 | || sv_cmp(cv_const_sv(cv), | |
3994 | cv_const_sv((CV*)sref))))) | |
3995 | { | |
9014280d | 3996 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 3997 | CvCONST(cv) |
910764e6 RGS |
3998 | ? "Constant subroutine %s::%s redefined" |
3999 | : "Subroutine %s::%s redefined", | |
bfcb3514 | 4000 | HvNAME_get(GvSTASH((GV*)dstr)), |
beab0874 JT |
4001 | GvENAME((GV*)dstr)); |
4002 | } | |
9607fc9c | 4003 | } |
fb24441d RGS |
4004 | if (!intro) |
4005 | cv_ckproto(cv, (GV*)dstr, | |
93524f2b NC |
4006 | SvPOK(sref) |
4007 | ? SvPVX_const(sref) : Nullch); | |
4633a7c4 | 4008 | } |
a5f75d66 | 4009 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 4010 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 4011 | GvASSUMECV_on(dstr); |
3280af22 | 4012 | PL_sub_generation++; |
a5f75d66 | 4013 | } |
39bac7f7 | 4014 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
4015 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4016 | { | |
a5f75d66 | 4017 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 4018 | } |
8990e307 | 4019 | break; |
91bba347 LW |
4020 | case SVt_PVIO: |
4021 | if (intro) | |
890ed176 | 4022 | SAVEGENERICSV(GvIOp(dstr)); |
91bba347 LW |
4023 | else |
4024 | dref = (SV*)GvIOp(dstr); | |
4025 | GvIOp(dstr) = (IO*)sref; | |
4026 | break; | |
f4d13ee9 JH |
4027 | case SVt_PVFM: |
4028 | if (intro) | |
890ed176 | 4029 | SAVEGENERICSV(GvFORM(dstr)); |
f4d13ee9 JH |
4030 | else |
4031 | dref = (SV*)GvFORM(dstr); | |
4032 | GvFORM(dstr) = (CV*)sref; | |
4033 | break; | |
8990e307 | 4034 | default: |
a0d0e21e | 4035 | if (intro) |
890ed176 | 4036 | SAVEGENERICSV(GvSV(dstr)); |
a0d0e21e LW |
4037 | else |
4038 | dref = (SV*)GvSV(dstr); | |
8990e307 | 4039 | GvSV(dstr) = sref; |
39bac7f7 | 4040 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
4041 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4042 | { | |
a5f75d66 | 4043 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 4044 | } |
8990e307 LW |
4045 | break; |
4046 | } | |
4047 | if (dref) | |
4048 | SvREFCNT_dec(dref); | |
27c9684d AP |
4049 | if (SvTAINTED(sstr)) |
4050 | SvTAINT(dstr); | |
8990e307 LW |
4051 | return; |
4052 | } | |
3f7c398e | 4053 | if (SvPVX_const(dstr)) { |
8bd4d4c5 | 4054 | SvPV_free(dstr); |
b162af07 SP |
4055 | SvLEN_set(dstr, 0); |
4056 | SvCUR_set(dstr, 0); | |
a0d0e21e | 4057 | } |
8990e307 | 4058 | } |
a0d0e21e | 4059 | (void)SvOK_off(dstr); |
b162af07 | 4060 | SvRV_set(dstr, SvREFCNT_inc(SvRV(sstr))); |
ed6116ce | 4061 | SvROK_on(dstr); |
8990e307 | 4062 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4063 | SvNOKp_on(dstr); |
4064 | /* Only set the public OK flag if the source has public OK. */ | |
4065 | if (sflags & SVf_NOK) | |
4066 | SvFLAGS(dstr) |= SVf_NOK; | |
9d6ce603 | 4067 | SvNV_set(dstr, SvNVX(sstr)); |
ed6116ce | 4068 | } |
8990e307 | 4069 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4070 | (void)SvIOKp_on(dstr); |
4071 | if (sflags & SVf_IOK) | |
4072 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4073 | if (sflags & SVf_IVisUV) |
25da4f38 | 4074 | SvIsUV_on(dstr); |
45977657 | 4075 | SvIV_set(dstr, SvIVX(sstr)); |
ed6116ce | 4076 | } |
a0d0e21e LW |
4077 | if (SvAMAGIC(sstr)) { |
4078 | SvAMAGIC_on(dstr); | |
4079 | } | |
ed6116ce | 4080 | } |
8990e307 | 4081 | else if (sflags & SVp_POK) { |
765f542d | 4082 | bool isSwipe = 0; |
79072805 LW |
4083 | |
4084 | /* | |
4085 | * Check to see if we can just swipe the string. If so, it's a | |
4086 | * possible small lose on short strings, but a big win on long ones. | |
3f7c398e SP |
4087 | * It might even be a win on short strings if SvPVX_const(dstr) |
4088 | * has to be allocated and SvPVX_const(sstr) has to be freed. | |
79072805 LW |
4089 | */ |
4090 | ||
120fac95 NC |
4091 | /* Whichever path we take through the next code, we want this true, |
4092 | and doing it now facilitates the COW check. */ | |
4093 | (void)SvPOK_only(dstr); | |
4094 | ||
765f542d | 4095 | if ( |
b8f9541a NC |
4096 | /* We're not already COW */ |
4097 | ((sflags & (SVf_FAKE | SVf_READONLY)) != (SVf_FAKE | SVf_READONLY) | |
f8c7b90f | 4098 | #ifndef PERL_OLD_COPY_ON_WRITE |
b8f9541a NC |
4099 | /* or we are, but dstr isn't a suitable target. */ |
4100 | || (SvFLAGS(dstr) & CAN_COW_MASK) != CAN_COW_FLAGS | |
4101 | #endif | |
4102 | ) | |
765f542d | 4103 | && |
765f542d NC |
4104 | !(isSwipe = |
4105 | (sflags & SVs_TEMP) && /* slated for free anyway? */ | |
4106 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ | |
5fcdf167 NC |
4107 | (!(flags & SV_NOSTEAL)) && |
4108 | /* and we're allowed to steal temps */ | |
765f542d NC |
4109 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
4110 | SvLEN(sstr) && /* and really is a string */ | |
645c22ef | 4111 | /* and won't be needed again, potentially */ |
765f542d | 4112 | !(PL_op && PL_op->op_type == OP_AASSIGN)) |
f8c7b90f | 4113 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d | 4114 | && !((sflags & CAN_COW_MASK) == CAN_COW_FLAGS |
120fac95 | 4115 | && (SvFLAGS(dstr) & CAN_COW_MASK) == CAN_COW_FLAGS |
765f542d NC |
4116 | && SvTYPE(sstr) >= SVt_PVIV) |
4117 | #endif | |
4118 | ) { | |
4119 | /* Failed the swipe test, and it's not a shared hash key either. | |
4120 | Have to copy the string. */ | |
4121 | STRLEN len = SvCUR(sstr); | |
4122 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
3f7c398e | 4123 | Move(SvPVX_const(sstr),SvPVX(dstr),len,char); |
765f542d NC |
4124 | SvCUR_set(dstr, len); |
4125 | *SvEND(dstr) = '\0'; | |
765f542d | 4126 | } else { |
f8c7b90f | 4127 | /* If PERL_OLD_COPY_ON_WRITE is not defined, then isSwipe will always |
765f542d | 4128 | be true in here. */ |
765f542d NC |
4129 | /* Either it's a shared hash key, or it's suitable for |
4130 | copy-on-write or we can swipe the string. */ | |
46187eeb | 4131 | if (DEBUG_C_TEST) { |
ed252734 | 4132 | PerlIO_printf(Perl_debug_log, "Copy on write: sstr --> dstr\n"); |
e419cbc5 NC |
4133 | sv_dump(sstr); |
4134 | sv_dump(dstr); | |
46187eeb | 4135 | } |
f8c7b90f | 4136 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
4137 | if (!isSwipe) { |
4138 | /* I believe I should acquire a global SV mutex if | |
4139 | it's a COW sv (not a shared hash key) to stop | |
4140 | it going un copy-on-write. | |
4141 | If the source SV has gone un copy on write between up there | |
4142 | and down here, then (assert() that) it is of the correct | |
4143 | form to make it copy on write again */ | |
4144 | if ((sflags & (SVf_FAKE | SVf_READONLY)) | |
4145 | != (SVf_FAKE | SVf_READONLY)) { | |
4146 | SvREADONLY_on(sstr); | |
4147 | SvFAKE_on(sstr); | |
4148 | /* Make the source SV into a loop of 1. | |
4149 | (about to become 2) */ | |
a29f6d03 | 4150 | SV_COW_NEXT_SV_SET(sstr, sstr); |
765f542d NC |
4151 | } |
4152 | } | |
4153 | #endif | |
4154 | /* Initial code is common. */ | |
94010e71 NC |
4155 | if (SvPVX_const(dstr)) { /* we know that dtype >= SVt_PV */ |
4156 | SvPV_free(dstr); | |
79072805 | 4157 | } |
765f542d | 4158 | |
765f542d NC |
4159 | if (!isSwipe) { |
4160 | /* making another shared SV. */ | |
4161 | STRLEN cur = SvCUR(sstr); | |
4162 | STRLEN len = SvLEN(sstr); | |
f8c7b90f | 4163 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d | 4164 | if (len) { |
b8f9541a | 4165 | assert (SvTYPE(dstr) >= SVt_PVIV); |
765f542d NC |
4166 | /* SvIsCOW_normal */ |
4167 | /* splice us in between source and next-after-source. */ | |
a29f6d03 NC |
4168 | SV_COW_NEXT_SV_SET(dstr, SV_COW_NEXT_SV(sstr)); |
4169 | SV_COW_NEXT_SV_SET(sstr, dstr); | |
940132f3 | 4170 | SvPV_set(dstr, SvPVX_mutable(sstr)); |
a604c751 NC |
4171 | } else |
4172 | #endif | |
4173 | { | |
765f542d | 4174 | /* SvIsCOW_shared_hash */ |
46187eeb NC |
4175 | DEBUG_C(PerlIO_printf(Perl_debug_log, |
4176 | "Copy on write: Sharing hash\n")); | |
b8f9541a | 4177 | |
bdd68bc3 | 4178 | assert (SvTYPE(dstr) >= SVt_PV); |
765f542d | 4179 | SvPV_set(dstr, |
d1db91c6 | 4180 | HEK_KEY(share_hek_hek(SvSHARED_HEK_FROM_PV(SvPVX_const(sstr))))); |
bdd68bc3 | 4181 | } |
87a1ef3d SP |
4182 | SvLEN_set(dstr, len); |
4183 | SvCUR_set(dstr, cur); | |
765f542d NC |
4184 | SvREADONLY_on(dstr); |
4185 | SvFAKE_on(dstr); | |
4186 | /* Relesase a global SV mutex. */ | |
4187 | } | |
4188 | else | |
765f542d | 4189 | { /* Passes the swipe test. */ |
78d1e721 | 4190 | SvPV_set(dstr, SvPVX_mutable(sstr)); |
765f542d NC |
4191 | SvLEN_set(dstr, SvLEN(sstr)); |
4192 | SvCUR_set(dstr, SvCUR(sstr)); | |
4193 | ||
4194 | SvTEMP_off(dstr); | |
4195 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ | |
4196 | SvPV_set(sstr, Nullch); | |
4197 | SvLEN_set(sstr, 0); | |
4198 | SvCUR_set(sstr, 0); | |
4199 | SvTEMP_off(sstr); | |
4200 | } | |
4201 | } | |
9aa983d2 | 4202 | if (sflags & SVf_UTF8) |
a7cb1f99 | 4203 | SvUTF8_on(dstr); |
8990e307 | 4204 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4205 | SvNOKp_on(dstr); |
4206 | if (sflags & SVf_NOK) | |
4207 | SvFLAGS(dstr) |= SVf_NOK; | |
9d6ce603 | 4208 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 | 4209 | } |
8990e307 | 4210 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4211 | (void)SvIOKp_on(dstr); |
4212 | if (sflags & SVf_IOK) | |
4213 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4214 | if (sflags & SVf_IVisUV) |
25da4f38 | 4215 | SvIsUV_on(dstr); |
45977657 | 4216 | SvIV_set(dstr, SvIVX(sstr)); |
79072805 | 4217 | } |
92f0c265 | 4218 | if (SvVOK(sstr)) { |
7a5fa8a2 | 4219 | MAGIC *smg = mg_find(sstr,PERL_MAGIC_vstring); |
ece467f9 JP |
4220 | sv_magic(dstr, NULL, PERL_MAGIC_vstring, |
4221 | smg->mg_ptr, smg->mg_len); | |
439cb1c4 | 4222 | SvRMAGICAL_on(dstr); |
7a5fa8a2 | 4223 | } |
79072805 | 4224 | } |
8990e307 | 4225 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
4226 | if (sflags & SVf_IOK) |
4227 | (void)SvIOK_only(dstr); | |
4228 | else { | |
9cbac4c7 DM |
4229 | (void)SvOK_off(dstr); |
4230 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
4231 | } |
4232 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 4233 | if (sflags & SVf_IVisUV) |
25da4f38 | 4234 | SvIsUV_on(dstr); |
45977657 | 4235 | SvIV_set(dstr, SvIVX(sstr)); |
3332b3c1 JH |
4236 | if (sflags & SVp_NOK) { |
4237 | if (sflags & SVf_NOK) | |
4238 | (void)SvNOK_on(dstr); | |
4239 | else | |
4240 | (void)SvNOKp_on(dstr); | |
9d6ce603 | 4241 | SvNV_set(dstr, SvNVX(sstr)); |
3332b3c1 JH |
4242 | } |
4243 | } | |
4244 | else if (sflags & SVp_NOK) { | |
4245 | if (sflags & SVf_NOK) | |
4246 | (void)SvNOK_only(dstr); | |
4247 | else { | |
9cbac4c7 | 4248 | (void)SvOK_off(dstr); |
3332b3c1 JH |
4249 | SvNOKp_on(dstr); |
4250 | } | |
9d6ce603 | 4251 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 LW |
4252 | } |
4253 | else { | |
20408e3c | 4254 | if (dtype == SVt_PVGV) { |
e476b1b5 | 4255 | if (ckWARN(WARN_MISC)) |
9014280d | 4256 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
4257 | } |
4258 | else | |
4259 | (void)SvOK_off(dstr); | |
a0d0e21e | 4260 | } |
27c9684d AP |
4261 | if (SvTAINTED(sstr)) |
4262 | SvTAINT(dstr); | |
79072805 LW |
4263 | } |
4264 | ||
954c1994 GS |
4265 | /* |
4266 | =for apidoc sv_setsv_mg | |
4267 | ||
4268 | Like C<sv_setsv>, but also handles 'set' magic. | |
4269 | ||
4270 | =cut | |
4271 | */ | |
4272 | ||
79072805 | 4273 | void |
864dbfa3 | 4274 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4275 | { |
4276 | sv_setsv(dstr,sstr); | |
4277 | SvSETMAGIC(dstr); | |
4278 | } | |
4279 | ||
f8c7b90f | 4280 | #ifdef PERL_OLD_COPY_ON_WRITE |
ed252734 NC |
4281 | SV * |
4282 | Perl_sv_setsv_cow(pTHX_ SV *dstr, SV *sstr) | |
4283 | { | |
4284 | STRLEN cur = SvCUR(sstr); | |
4285 | STRLEN len = SvLEN(sstr); | |
4286 | register char *new_pv; | |
4287 | ||
4288 | if (DEBUG_C_TEST) { | |
4289 | PerlIO_printf(Perl_debug_log, "Fast copy on write: %p -> %p\n", | |
4290 | sstr, dstr); | |
4291 | sv_dump(sstr); | |
4292 | if (dstr) | |
4293 | sv_dump(dstr); | |
4294 | } | |
4295 | ||
4296 | if (dstr) { | |
4297 | if (SvTHINKFIRST(dstr)) | |
4298 | sv_force_normal_flags(dstr, SV_COW_DROP_PV); | |
3f7c398e SP |
4299 | else if (SvPVX_const(dstr)) |
4300 | Safefree(SvPVX_const(dstr)); | |
ed252734 NC |
4301 | } |
4302 | else | |
4303 | new_SV(dstr); | |
862a34c6 | 4304 | SvUPGRADE(dstr, SVt_PVIV); |
ed252734 NC |
4305 | |
4306 | assert (SvPOK(sstr)); | |
4307 | assert (SvPOKp(sstr)); | |
4308 | assert (!SvIOK(sstr)); | |
4309 | assert (!SvIOKp(sstr)); | |
4310 | assert (!SvNOK(sstr)); | |
4311 | assert (!SvNOKp(sstr)); | |
4312 | ||
4313 | if (SvIsCOW(sstr)) { | |
4314 | ||
4315 | if (SvLEN(sstr) == 0) { | |
4316 | /* source is a COW shared hash key. */ | |
ed252734 NC |
4317 | DEBUG_C(PerlIO_printf(Perl_debug_log, |
4318 | "Fast copy on write: Sharing hash\n")); | |
d1db91c6 | 4319 | new_pv = HEK_KEY(share_hek_hek(SvSHARED_HEK_FROM_PV(SvPVX_const(sstr)))); |
ed252734 NC |
4320 | goto common_exit; |
4321 | } | |
4322 | SV_COW_NEXT_SV_SET(dstr, SV_COW_NEXT_SV(sstr)); | |
4323 | } else { | |
4324 | assert ((SvFLAGS(sstr) & CAN_COW_MASK) == CAN_COW_FLAGS); | |
862a34c6 | 4325 | SvUPGRADE(sstr, SVt_PVIV); |
ed252734 NC |
4326 | SvREADONLY_on(sstr); |
4327 | SvFAKE_on(sstr); | |
4328 | DEBUG_C(PerlIO_printf(Perl_debug_log, | |
4329 | "Fast copy on write: Converting sstr to COW\n")); | |
4330 | SV_COW_NEXT_SV_SET(dstr, sstr); | |
4331 | } | |
4332 | SV_COW_NEXT_SV_SET(sstr, dstr); | |
940132f3 | 4333 | new_pv = SvPVX_mutable(sstr); |
ed252734 NC |
4334 | |
4335 | common_exit: | |
4336 | SvPV_set(dstr, new_pv); | |
4337 | SvFLAGS(dstr) = (SVt_PVIV|SVf_POK|SVp_POK|SVf_FAKE|SVf_READONLY); | |
4338 | if (SvUTF8(sstr)) | |
4339 | SvUTF8_on(dstr); | |
87a1ef3d SP |
4340 | SvLEN_set(dstr, len); |
4341 | SvCUR_set(dstr, cur); | |
ed252734 NC |
4342 | if (DEBUG_C_TEST) { |
4343 | sv_dump(dstr); | |
4344 | } | |
4345 | return dstr; | |
4346 | } | |
4347 | #endif | |
4348 | ||
954c1994 GS |
4349 | /* |
4350 | =for apidoc sv_setpvn | |
4351 | ||
4352 | Copies a string into an SV. The C<len> parameter indicates the number of | |
9e09f5f2 MHM |
4353 | bytes to be copied. If the C<ptr> argument is NULL the SV will become |
4354 | undefined. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
954c1994 GS |
4355 | |
4356 | =cut | |
4357 | */ | |
4358 | ||
ef50df4b | 4359 | void |
864dbfa3 | 4360 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4361 | { |
c6f8c383 | 4362 | register char *dptr; |
22c522df | 4363 | |
765f542d | 4364 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4365 | if (!ptr) { |
a0d0e21e | 4366 | (void)SvOK_off(sv); |
463ee0b2 LW |
4367 | return; |
4368 | } | |
22c522df JH |
4369 | else { |
4370 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
a3b680e6 | 4371 | const IV iv = len; |
9c5ffd7c JH |
4372 | if (iv < 0) |
4373 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4374 | } |
862a34c6 | 4375 | SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4376 | |
5902b6a9 | 4377 | dptr = SvGROW(sv, len + 1); |
c6f8c383 GA |
4378 | Move(ptr,dptr,len,char); |
4379 | dptr[len] = '\0'; | |
79072805 | 4380 | SvCUR_set(sv, len); |
1aa99e6b | 4381 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4382 | SvTAINT(sv); |
79072805 LW |
4383 | } |
4384 | ||
954c1994 GS |
4385 | /* |
4386 | =for apidoc sv_setpvn_mg | |
4387 | ||
4388 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4389 | ||
4390 | =cut | |
4391 | */ | |
4392 | ||
79072805 | 4393 | void |
864dbfa3 | 4394 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4395 | { |
4396 | sv_setpvn(sv,ptr,len); | |
4397 | SvSETMAGIC(sv); | |
4398 | } | |
4399 | ||
954c1994 GS |
4400 | /* |
4401 | =for apidoc sv_setpv | |
4402 | ||
4403 | Copies a string into an SV. The string must be null-terminated. Does not | |
4404 | handle 'set' magic. See C<sv_setpv_mg>. | |
4405 | ||
4406 | =cut | |
4407 | */ | |
4408 | ||
ef50df4b | 4409 | void |
864dbfa3 | 4410 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4411 | { |
4412 | register STRLEN len; | |
4413 | ||
765f542d | 4414 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4415 | if (!ptr) { |
a0d0e21e | 4416 | (void)SvOK_off(sv); |
463ee0b2 LW |
4417 | return; |
4418 | } | |
79072805 | 4419 | len = strlen(ptr); |
862a34c6 | 4420 | SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4421 | |
79072805 | 4422 | SvGROW(sv, len + 1); |
463ee0b2 | 4423 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4424 | SvCUR_set(sv, len); |
1aa99e6b | 4425 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4426 | SvTAINT(sv); |
4427 | } | |
4428 | ||
954c1994 GS |
4429 | /* |
4430 | =for apidoc sv_setpv_mg | |
4431 | ||
4432 | Like C<sv_setpv>, but also handles 'set' magic. | |
4433 | ||
4434 | =cut | |
4435 | */ | |
4436 | ||
463ee0b2 | 4437 | void |
864dbfa3 | 4438 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4439 | { |
4440 | sv_setpv(sv,ptr); | |
4441 | SvSETMAGIC(sv); | |
4442 | } | |
4443 | ||
954c1994 GS |
4444 | /* |
4445 | =for apidoc sv_usepvn | |
4446 | ||
4447 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4448 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4449 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4450 | string length, C<len>, must be supplied. This function will realloc the | |
4451 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4452 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4453 | See C<sv_usepvn_mg>. | |
4454 | ||
4455 | =cut | |
4456 | */ | |
4457 | ||
ef50df4b | 4458 | void |
864dbfa3 | 4459 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4460 | { |
1936d2a7 | 4461 | STRLEN allocate; |
765f542d | 4462 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
862a34c6 | 4463 | SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4464 | if (!ptr) { |
a0d0e21e | 4465 | (void)SvOK_off(sv); |
463ee0b2 LW |
4466 | return; |
4467 | } | |
3f7c398e | 4468 | if (SvPVX_const(sv)) |
8bd4d4c5 | 4469 | SvPV_free(sv); |
1936d2a7 NC |
4470 | |
4471 | allocate = PERL_STRLEN_ROUNDUP(len + 1); | |
7a9b70e9 | 4472 | ptr = saferealloc (ptr, allocate); |
f880fe2f | 4473 | SvPV_set(sv, ptr); |
463ee0b2 | 4474 | SvCUR_set(sv, len); |
1936d2a7 | 4475 | SvLEN_set(sv, allocate); |
463ee0b2 | 4476 | *SvEND(sv) = '\0'; |
1aa99e6b | 4477 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4478 | SvTAINT(sv); |
79072805 LW |
4479 | } |
4480 | ||
954c1994 GS |
4481 | /* |
4482 | =for apidoc sv_usepvn_mg | |
4483 | ||
4484 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4485 | ||
4486 | =cut | |
4487 | */ | |
4488 | ||
ef50df4b | 4489 | void |
864dbfa3 | 4490 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4491 | { |
51c1089b | 4492 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4493 | SvSETMAGIC(sv); |
4494 | } | |
4495 | ||
f8c7b90f | 4496 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
4497 | /* Need to do this *after* making the SV normal, as we need the buffer |
4498 | pointer to remain valid until after we've copied it. If we let go too early, | |
4499 | another thread could invalidate it by unsharing last of the same hash key | |
4500 | (which it can do by means other than releasing copy-on-write Svs) | |
4501 | or by changing the other copy-on-write SVs in the loop. */ | |
4502 | STATIC void | |
bdd68bc3 | 4503 | S_sv_release_COW(pTHX_ register SV *sv, const char *pvx, STRLEN len, SV *after) |
765f542d NC |
4504 | { |
4505 | if (len) { /* this SV was SvIsCOW_normal(sv) */ | |
4506 | /* we need to find the SV pointing to us. */ | |
aec46f14 | 4507 | SV * const current = SV_COW_NEXT_SV(after); |
7a5fa8a2 | 4508 | |
765f542d NC |
4509 | if (current == sv) { |
4510 | /* The SV we point to points back to us (there were only two of us | |
4511 | in the loop.) | |
4512 | Hence other SV is no longer copy on write either. */ | |
4513 | SvFAKE_off(after); | |
4514 | SvREADONLY_off(after); | |
4515 | } else { | |
4516 | /* We need to follow the pointers around the loop. */ | |
4517 | SV *next; | |
4518 | while ((next = SV_COW_NEXT_SV(current)) != sv) { | |
4519 | assert (next); | |
4520 | current = next; | |
4521 | /* don't loop forever if the structure is bust, and we have | |
4522 | a pointer into a closed loop. */ | |
4523 | assert (current != after); | |
3f7c398e | 4524 | assert (SvPVX_const(current) == pvx); |
765f542d NC |
4525 | } |
4526 | /* Make the SV before us point to the SV after us. */ | |
a29f6d03 | 4527 | SV_COW_NEXT_SV_SET(current, after); |
765f542d NC |
4528 | } |
4529 | } else { | |
bdd68bc3 | 4530 | unshare_hek(SvSHARED_HEK_FROM_PV(pvx)); |
765f542d NC |
4531 | } |
4532 | } | |
4533 | ||
4534 | int | |
4535 | Perl_sv_release_IVX(pTHX_ register SV *sv) | |
4536 | { | |
4537 | if (SvIsCOW(sv)) | |
4538 | sv_force_normal_flags(sv, 0); | |
0c34ef67 MHM |
4539 | SvOOK_off(sv); |
4540 | return 0; | |
765f542d NC |
4541 | } |
4542 | #endif | |
645c22ef DM |
4543 | /* |
4544 | =for apidoc sv_force_normal_flags | |
4545 | ||
4546 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4547 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
765f542d NC |
4548 | an xpvmg; if we're a copy-on-write scalar, this is the on-write time when |
4549 | we do the copy, and is also used locally. If C<SV_COW_DROP_PV> is set | |
4550 | then a copy-on-write scalar drops its PV buffer (if any) and becomes | |
4551 | SvPOK_off rather than making a copy. (Used where this scalar is about to be | |
d3050d9d | 4552 | set to some other value.) In addition, the C<flags> parameter gets passed to |
765f542d NC |
4553 | C<sv_unref_flags()> when unrefing. C<sv_force_normal> calls this function |
4554 | with flags set to 0. | |
645c22ef DM |
4555 | |
4556 | =cut | |
4557 | */ | |
4558 | ||
6fc92669 | 4559 | void |
840a7b70 | 4560 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4561 | { |
f8c7b90f | 4562 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
4563 | if (SvREADONLY(sv)) { |
4564 | /* At this point I believe I should acquire a global SV mutex. */ | |
4565 | if (SvFAKE(sv)) { | |
b64e5050 | 4566 | const char * const pvx = SvPVX_const(sv); |
a28509cc AL |
4567 | const STRLEN len = SvLEN(sv); |
4568 | const STRLEN cur = SvCUR(sv); | |
a28509cc | 4569 | SV * const next = SV_COW_NEXT_SV(sv); /* next COW sv in the loop. */ |
46187eeb NC |
4570 | if (DEBUG_C_TEST) { |
4571 | PerlIO_printf(Perl_debug_log, | |
4572 | "Copy on write: Force normal %ld\n", | |
4573 | (long) flags); | |
e419cbc5 | 4574 | sv_dump(sv); |
46187eeb | 4575 | } |
765f542d NC |
4576 | SvFAKE_off(sv); |
4577 | SvREADONLY_off(sv); | |
9f653bb5 | 4578 | /* This SV doesn't own the buffer, so need to Newx() a new one: */ |
f880fe2f | 4579 | SvPV_set(sv, (char*)0); |
87a1ef3d | 4580 | SvLEN_set(sv, 0); |
765f542d NC |
4581 | if (flags & SV_COW_DROP_PV) { |
4582 | /* OK, so we don't need to copy our buffer. */ | |
4583 | SvPOK_off(sv); | |
4584 | } else { | |
4585 | SvGROW(sv, cur + 1); | |
4586 | Move(pvx,SvPVX(sv),cur,char); | |
87a1ef3d | 4587 | SvCUR_set(sv, cur); |
765f542d NC |
4588 | *SvEND(sv) = '\0'; |
4589 | } | |
bdd68bc3 | 4590 | sv_release_COW(sv, pvx, len, next); |
46187eeb | 4591 | if (DEBUG_C_TEST) { |
e419cbc5 | 4592 | sv_dump(sv); |
46187eeb | 4593 | } |
765f542d | 4594 | } |
923e4eb5 | 4595 | else if (IN_PERL_RUNTIME) |
765f542d NC |
4596 | Perl_croak(aTHX_ PL_no_modify); |
4597 | /* At this point I believe that I can drop the global SV mutex. */ | |
4598 | } | |
4599 | #else | |
2213622d | 4600 | if (SvREADONLY(sv)) { |
1c846c1f | 4601 | if (SvFAKE(sv)) { |
b64e5050 | 4602 | const char * const pvx = SvPVX_const(sv); |
66a1b24b | 4603 | const STRLEN len = SvCUR(sv); |
10bcdfd6 NC |
4604 | SvFAKE_off(sv); |
4605 | SvREADONLY_off(sv); | |
66a1b24b AL |
4606 | SvPV_set(sv, Nullch); |
4607 | SvLEN_set(sv, 0); | |
1c846c1f | 4608 | SvGROW(sv, len + 1); |
706aa1c9 | 4609 | Move(pvx,SvPVX(sv),len,char); |
1c846c1f | 4610 | *SvEND(sv) = '\0'; |
bdd68bc3 | 4611 | unshare_hek(SvSHARED_HEK_FROM_PV(pvx)); |
1c846c1f | 4612 | } |
923e4eb5 | 4613 | else if (IN_PERL_RUNTIME) |
cea2e8a9 | 4614 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4615 | } |
765f542d | 4616 | #endif |
2213622d | 4617 | if (SvROK(sv)) |
840a7b70 | 4618 | sv_unref_flags(sv, flags); |
6fc92669 GS |
4619 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
4620 | sv_unglob(sv); | |
0f15f207 | 4621 | } |
1c846c1f | 4622 | |
645c22ef DM |
4623 | /* |
4624 | =for apidoc sv_force_normal | |
4625 | ||
4626 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4627 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
4628 | an xpvmg. See also C<sv_force_normal_flags>. | |
4629 | ||
4630 | =cut | |
4631 | */ | |
4632 | ||
840a7b70 IZ |
4633 | void |
4634 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
4635 | { | |
4636 | sv_force_normal_flags(sv, 0); | |
4637 | } | |
4638 | ||
954c1994 GS |
4639 | /* |
4640 | =for apidoc sv_chop | |
4641 | ||
1c846c1f | 4642 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
4643 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
4644 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 4645 | string. Uses the "OOK hack". |
3f7c398e | 4646 | Beware: after this function returns, C<ptr> and SvPVX_const(sv) may no longer |
31869a79 | 4647 | refer to the same chunk of data. |
954c1994 GS |
4648 | |
4649 | =cut | |
4650 | */ | |
4651 | ||
79072805 | 4652 | void |
f54cb97a | 4653 | Perl_sv_chop(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4654 | { |
4655 | register STRLEN delta; | |
a0d0e21e | 4656 | if (!ptr || !SvPOKp(sv)) |
79072805 | 4657 | return; |
3f7c398e | 4658 | delta = ptr - SvPVX_const(sv); |
2213622d | 4659 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
4660 | if (SvTYPE(sv) < SVt_PVIV) |
4661 | sv_upgrade(sv,SVt_PVIV); | |
4662 | ||
4663 | if (!SvOOK(sv)) { | |
50483b2c | 4664 | if (!SvLEN(sv)) { /* make copy of shared string */ |
3f7c398e | 4665 | const char *pvx = SvPVX_const(sv); |
a28509cc | 4666 | const STRLEN len = SvCUR(sv); |
50483b2c | 4667 | SvGROW(sv, len + 1); |
706aa1c9 | 4668 | Move(pvx,SvPVX(sv),len,char); |
50483b2c JD |
4669 | *SvEND(sv) = '\0'; |
4670 | } | |
45977657 | 4671 | SvIV_set(sv, 0); |
a4bfb290 AB |
4672 | /* Same SvOOK_on but SvOOK_on does a SvIOK_off |
4673 | and we do that anyway inside the SvNIOK_off | |
4674 | */ | |
7a5fa8a2 | 4675 | SvFLAGS(sv) |= SVf_OOK; |
79072805 | 4676 | } |
a4bfb290 | 4677 | SvNIOK_off(sv); |
b162af07 SP |
4678 | SvLEN_set(sv, SvLEN(sv) - delta); |
4679 | SvCUR_set(sv, SvCUR(sv) - delta); | |
f880fe2f | 4680 | SvPV_set(sv, SvPVX(sv) + delta); |
45977657 | 4681 | SvIV_set(sv, SvIVX(sv) + delta); |
79072805 LW |
4682 | } |
4683 | ||
09540bc3 JH |
4684 | /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags(); |
4685 | * this function provided for binary compatibility only | |
4686 | */ | |
4687 | ||
4688 | void | |
4689 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) | |
4690 | { | |
4691 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); | |
4692 | } | |
4693 | ||
954c1994 GS |
4694 | /* |
4695 | =for apidoc sv_catpvn | |
4696 | ||
4697 | Concatenates the string onto the end of the string which is in the SV. The | |
1e54db1a JH |
4698 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4699 | status set, then the bytes appended should be valid UTF-8. | |
d5ce4a7c | 4700 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. |
954c1994 | 4701 | |
8d6d96c1 HS |
4702 | =for apidoc sv_catpvn_flags |
4703 | ||
4704 | Concatenates the string onto the end of the string which is in the SV. The | |
1e54db1a JH |
4705 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
4706 | status set, then the bytes appended should be valid UTF-8. | |
8d6d96c1 HS |
4707 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if |
4708 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
4709 | in terms of this function. | |
4710 | ||
4711 | =cut | |
4712 | */ | |
4713 | ||
4714 | void | |
4715 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
4716 | { | |
4717 | STRLEN dlen; | |
f54cb97a | 4718 | const char *dstr = SvPV_force_flags(dsv, dlen, flags); |
8d6d96c1 | 4719 | |
8d6d96c1 HS |
4720 | SvGROW(dsv, dlen + slen + 1); |
4721 | if (sstr == dstr) | |
3f7c398e | 4722 | sstr = SvPVX_const(dsv); |
8d6d96c1 | 4723 | Move(sstr, SvPVX(dsv) + dlen, slen, char); |
b162af07 | 4724 | SvCUR_set(dsv, SvCUR(dsv) + slen); |
8d6d96c1 HS |
4725 | *SvEND(dsv) = '\0'; |
4726 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
4727 | SvTAINT(dsv); | |
79072805 LW |
4728 | } |
4729 | ||
954c1994 GS |
4730 | /* |
4731 | =for apidoc sv_catpvn_mg | |
4732 | ||
4733 | Like C<sv_catpvn>, but also handles 'set' magic. | |
4734 | ||
4735 | =cut | |
4736 | */ | |
4737 | ||
79072805 | 4738 | void |
864dbfa3 | 4739 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4740 | { |
4741 | sv_catpvn(sv,ptr,len); | |
4742 | SvSETMAGIC(sv); | |
4743 | } | |
4744 | ||
09540bc3 JH |
4745 | /* sv_catsv() is now a macro using Perl_sv_catsv_flags(); |
4746 | * this function provided for binary compatibility only | |
4747 | */ | |
4748 | ||
4749 | void | |
4750 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
4751 | { | |
4752 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
4753 | } | |
4754 | ||
954c1994 GS |
4755 | /* |
4756 | =for apidoc sv_catsv | |
4757 | ||
13e8c8e3 JH |
4758 | Concatenates the string from SV C<ssv> onto the end of the string in |
4759 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
4760 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 4761 | |
8d6d96c1 HS |
4762 | =for apidoc sv_catsv_flags |
4763 | ||
4764 | Concatenates the string from SV C<ssv> onto the end of the string in | |
4765 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
4766 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
4767 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
4768 | ||
4769 | =cut */ | |
4770 | ||
ef50df4b | 4771 | void |
8d6d96c1 | 4772 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 4773 | { |
4d84ee25 | 4774 | const char *spv; |
13e8c8e3 | 4775 | STRLEN slen; |
46199a12 | 4776 | if (!ssv) |
79072805 | 4777 | return; |
4d84ee25 | 4778 | if ((spv = SvPV_const(ssv, slen))) { |
4fd84b44 AD |
4779 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
4780 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
4781 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
4782 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
4783 | dsv->sv_flags doesn't have that bit set. |
4784 | Andy Dougherty 12 Oct 2001 | |
4785 | */ | |
b464bac0 | 4786 | const I32 sutf8 = DO_UTF8(ssv); |
4fd84b44 | 4787 | I32 dutf8; |
13e8c8e3 | 4788 | |
8d6d96c1 HS |
4789 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
4790 | mg_get(dsv); | |
4791 | dutf8 = DO_UTF8(dsv); | |
4792 | ||
4793 | if (dutf8 != sutf8) { | |
13e8c8e3 | 4794 | if (dutf8) { |
46199a12 | 4795 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 4796 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 4797 | |
46199a12 | 4798 | sv_utf8_upgrade(csv); |
93524f2b | 4799 | spv = SvPV_const(csv, slen); |
13e8c8e3 | 4800 | } |
8d6d96c1 HS |
4801 | else |
4802 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 4803 | } |
8d6d96c1 | 4804 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 4805 | } |
79072805 LW |
4806 | } |
4807 | ||
954c1994 GS |
4808 | /* |
4809 | =for apidoc sv_catsv_mg | |
4810 | ||
4811 | Like C<sv_catsv>, but also handles 'set' magic. | |
4812 | ||
4813 | =cut | |
4814 | */ | |
4815 | ||
79072805 | 4816 | void |
46199a12 | 4817 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 4818 | { |
46199a12 JH |
4819 | sv_catsv(dsv,ssv); |
4820 | SvSETMAGIC(dsv); | |
ef50df4b GS |
4821 | } |
4822 | ||
954c1994 GS |
4823 | /* |
4824 | =for apidoc sv_catpv | |
4825 | ||
4826 | Concatenates the string onto the end of the string which is in the SV. | |
1e54db1a JH |
4827 | If the SV has the UTF-8 status set, then the bytes appended should be |
4828 | valid UTF-8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 4829 | |
d5ce4a7c | 4830 | =cut */ |
954c1994 | 4831 | |
ef50df4b | 4832 | void |
0c981600 | 4833 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4834 | { |
4835 | register STRLEN len; | |
463ee0b2 | 4836 | STRLEN tlen; |
748a9306 | 4837 | char *junk; |
79072805 | 4838 | |
0c981600 | 4839 | if (!ptr) |
79072805 | 4840 | return; |
748a9306 | 4841 | junk = SvPV_force(sv, tlen); |
0c981600 | 4842 | len = strlen(ptr); |
463ee0b2 | 4843 | SvGROW(sv, tlen + len + 1); |
0c981600 | 4844 | if (ptr == junk) |
3f7c398e | 4845 | ptr = SvPVX_const(sv); |
0c981600 | 4846 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
b162af07 | 4847 | SvCUR_set(sv, SvCUR(sv) + len); |
d41ff1b8 | 4848 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4849 | SvTAINT(sv); |
79072805 LW |
4850 | } |
4851 | ||
954c1994 GS |
4852 | /* |
4853 | =for apidoc sv_catpv_mg | |
4854 | ||
4855 | Like C<sv_catpv>, but also handles 'set' magic. | |
4856 | ||
4857 | =cut | |
4858 | */ | |
4859 | ||
ef50df4b | 4860 | void |
0c981600 | 4861 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 4862 | { |
0c981600 | 4863 | sv_catpv(sv,ptr); |
ef50df4b GS |
4864 | SvSETMAGIC(sv); |
4865 | } | |
4866 | ||
645c22ef DM |
4867 | /* |
4868 | =for apidoc newSV | |
4869 | ||
4870 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
4871 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
4872 | macro. | |
4873 | ||
4874 | =cut | |
4875 | */ | |
4876 | ||
79072805 | 4877 | SV * |
864dbfa3 | 4878 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
4879 | { |
4880 | register SV *sv; | |
1c846c1f | 4881 | |
4561caa4 | 4882 | new_SV(sv); |
79072805 LW |
4883 | if (len) { |
4884 | sv_upgrade(sv, SVt_PV); | |
4885 | SvGROW(sv, len + 1); | |
4886 | } | |
4887 | return sv; | |
4888 | } | |
954c1994 | 4889 | /* |
92110913 | 4890 | =for apidoc sv_magicext |
954c1994 | 4891 | |
68795e93 | 4892 | Adds magic to an SV, upgrading it if necessary. Applies the |
2d8d5d5a | 4893 | supplied vtable and returns a pointer to the magic added. |
92110913 | 4894 | |
2d8d5d5a SH |
4895 | Note that C<sv_magicext> will allow things that C<sv_magic> will not. |
4896 | In particular, you can add magic to SvREADONLY SVs, and add more than | |
4897 | one instance of the same 'how'. | |
645c22ef | 4898 | |
2d8d5d5a SH |
4899 | If C<namlen> is greater than zero then a C<savepvn> I<copy> of C<name> is |
4900 | stored, if C<namlen> is zero then C<name> is stored as-is and - as another | |
4901 | special case - if C<(name && namlen == HEf_SVKEY)> then C<name> is assumed | |
4902 | to contain an C<SV*> and is stored as-is with its REFCNT incremented. | |
92110913 | 4903 | |
2d8d5d5a | 4904 | (This is now used as a subroutine by C<sv_magic>.) |
954c1994 GS |
4905 | |
4906 | =cut | |
4907 | */ | |
92110913 | 4908 | MAGIC * |
e1ec3a88 | 4909 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, const MGVTBL *vtable, |
92110913 | 4910 | const char* name, I32 namlen) |
79072805 LW |
4911 | { |
4912 | MAGIC* mg; | |
68795e93 | 4913 | |
92110913 | 4914 | if (SvTYPE(sv) < SVt_PVMG) { |
862a34c6 | 4915 | SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 4916 | } |
a02a5408 | 4917 | Newxz(mg, 1, MAGIC); |
79072805 | 4918 | mg->mg_moremagic = SvMAGIC(sv); |
b162af07 | 4919 | SvMAGIC_set(sv, mg); |
75f9d97a | 4920 | |
05f95b08 SB |
4921 | /* Sometimes a magic contains a reference loop, where the sv and |
4922 | object refer to each other. To prevent a reference loop that | |
4923 | would prevent such objects being freed, we look for such loops | |
4924 | and if we find one we avoid incrementing the object refcount. | |
87f0b213 JH |
4925 | |
4926 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
b5ccf5f2 | 4927 | have its REFCNT incremented to keep it in existence. |
87f0b213 JH |
4928 | |
4929 | */ | |
14befaf4 DM |
4930 | if (!obj || obj == sv || |
4931 | how == PERL_MAGIC_arylen || | |
4932 | how == PERL_MAGIC_qr || | |
8d2f4536 | 4933 | how == PERL_MAGIC_symtab || |
75f9d97a JH |
4934 | (SvTYPE(obj) == SVt_PVGV && |
4935 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
4936 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 4937 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 4938 | { |
8990e307 | 4939 | mg->mg_obj = obj; |
75f9d97a | 4940 | } |
85e6fe83 | 4941 | else { |
8990e307 | 4942 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
4943 | mg->mg_flags |= MGf_REFCOUNTED; |
4944 | } | |
b5ccf5f2 YST |
4945 | |
4946 | /* Normal self-ties simply pass a null object, and instead of | |
4947 | using mg_obj directly, use the SvTIED_obj macro to produce a | |
4948 | new RV as needed. For glob "self-ties", we are tieing the PVIO | |
4949 | with an RV obj pointing to the glob containing the PVIO. In | |
4950 | this case, to avoid a reference loop, we need to weaken the | |
4951 | reference. | |
4952 | */ | |
4953 | ||
4954 | if (how == PERL_MAGIC_tiedscalar && SvTYPE(sv) == SVt_PVIO && | |
4955 | obj && SvROK(obj) && GvIO(SvRV(obj)) == (IO*)sv) | |
4956 | { | |
4957 | sv_rvweaken(obj); | |
4958 | } | |
4959 | ||
79072805 | 4960 | mg->mg_type = how; |
565764a8 | 4961 | mg->mg_len = namlen; |
9cbac4c7 | 4962 | if (name) { |
92110913 | 4963 | if (namlen > 0) |
1edc1566 | 4964 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 4965 | else if (namlen == HEf_SVKEY) |
1edc1566 | 4966 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 4967 | else |
92110913 | 4968 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 4969 | } |
92110913 | 4970 | mg->mg_virtual = vtable; |
68795e93 | 4971 | |
92110913 NIS |
4972 | mg_magical(sv); |
4973 | if (SvGMAGICAL(sv)) | |
4974 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
4975 | return mg; | |
4976 | } | |
4977 | ||
4978 | /* | |
4979 | =for apidoc sv_magic | |
1c846c1f | 4980 | |
92110913 NIS |
4981 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
4982 | then adds a new magic item of type C<how> to the head of the magic list. | |
4983 | ||
2d8d5d5a SH |
4984 | See C<sv_magicext> (which C<sv_magic> now calls) for a description of the |
4985 | handling of the C<name> and C<namlen> arguments. | |
4986 | ||
4509d3fb SB |
4987 | You need to use C<sv_magicext> to add magic to SvREADONLY SVs and also |
4988 | to add more than one instance of the same 'how'. | |
4989 | ||
92110913 NIS |
4990 | =cut |
4991 | */ | |
4992 | ||
4993 | void | |
4994 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 4995 | { |
aec46f14 | 4996 | const MGVTBL *vtable; |
92110913 | 4997 | MAGIC* mg; |
92110913 | 4998 | |
f8c7b90f | 4999 | #ifdef PERL_OLD_COPY_ON_WRITE |
765f542d NC |
5000 | if (SvIsCOW(sv)) |
5001 | sv_force_normal_flags(sv, 0); | |
5002 | #endif | |
92110913 | 5003 | if (SvREADONLY(sv)) { |
d8084ca5 DM |
5004 | if ( |
5005 | /* its okay to attach magic to shared strings; the subsequent | |
5006 | * upgrade to PVMG will unshare the string */ | |
5007 | !(SvFAKE(sv) && SvTYPE(sv) < SVt_PVMG) | |
5008 | ||
5009 | && IN_PERL_RUNTIME | |
92110913 NIS |
5010 | && how != PERL_MAGIC_regex_global |
5011 | && how != PERL_MAGIC_bm | |
5012 | && how != PERL_MAGIC_fm | |
5013 | && how != PERL_MAGIC_sv | |
e6469971 | 5014 | && how != PERL_MAGIC_backref |
92110913 NIS |
5015 | ) |
5016 | { | |
5017 | Perl_croak(aTHX_ PL_no_modify); | |
5018 | } | |
5019 | } | |
5020 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
5021 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
5022 | /* sv_magic() refuses to add a magic of the same 'how' as an |
5023 | existing one | |
92110913 NIS |
5024 | */ |
5025 | if (how == PERL_MAGIC_taint) | |
5026 | mg->mg_len |= 1; | |
5027 | return; | |
5028 | } | |
5029 | } | |
68795e93 | 5030 | |
79072805 | 5031 | switch (how) { |
14befaf4 | 5032 | case PERL_MAGIC_sv: |
92110913 | 5033 | vtable = &PL_vtbl_sv; |
79072805 | 5034 | break; |
14befaf4 | 5035 | case PERL_MAGIC_overload: |
92110913 | 5036 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 5037 | break; |
14befaf4 | 5038 | case PERL_MAGIC_overload_elem: |
92110913 | 5039 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 5040 | break; |
14befaf4 | 5041 | case PERL_MAGIC_overload_table: |
92110913 | 5042 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 5043 | break; |
14befaf4 | 5044 | case PERL_MAGIC_bm: |
92110913 | 5045 | vtable = &PL_vtbl_bm; |
79072805 | 5046 | break; |
14befaf4 | 5047 | case PERL_MAGIC_regdata: |
92110913 | 5048 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 5049 | break; |
14befaf4 | 5050 | case PERL_MAGIC_regdatum: |
92110913 | 5051 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 5052 | break; |
14befaf4 | 5053 | case PERL_MAGIC_env: |
92110913 | 5054 | vtable = &PL_vtbl_env; |
79072805 | 5055 | break; |
14befaf4 | 5056 | case PERL_MAGIC_fm: |
92110913 | 5057 | vtable = &PL_vtbl_fm; |
55497cff | 5058 | break; |
14befaf4 | 5059 | case PERL_MAGIC_envelem: |
92110913 | 5060 | vtable = &PL_vtbl_envelem; |
79072805 | 5061 | break; |
14befaf4 | 5062 | case PERL_MAGIC_regex_global: |
92110913 | 5063 | vtable = &PL_vtbl_mglob; |
93a17b20 | 5064 | break; |
14befaf4 | 5065 | case PERL_MAGIC_isa: |
92110913 | 5066 | vtable = &PL_vtbl_isa; |
463ee0b2 | 5067 | break; |
14befaf4 | 5068 | case PERL_MAGIC_isaelem: |
92110913 | 5069 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 5070 | break; |
14befaf4 | 5071 | case PERL_MAGIC_nkeys: |
92110913 | 5072 | vtable = &PL_vtbl_nkeys; |
16660edb | 5073 | break; |
14befaf4 | 5074 | case PERL_MAGIC_dbfile: |
aec46f14 | 5075 | vtable = NULL; |
93a17b20 | 5076 | break; |
14befaf4 | 5077 | case PERL_MAGIC_dbline: |
92110913 | 5078 | vtable = &PL_vtbl_dbline; |
79072805 | 5079 | break; |
36477c24 | 5080 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 5081 | case PERL_MAGIC_collxfrm: |
92110913 | 5082 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 5083 | break; |
36477c24 | 5084 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 5085 | case PERL_MAGIC_tied: |
92110913 | 5086 | vtable = &PL_vtbl_pack; |
463ee0b2 | 5087 | break; |
14befaf4 DM |
5088 | case PERL_MAGIC_tiedelem: |
5089 | case PERL_MAGIC_tiedscalar: | |
92110913 | 5090 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 5091 | break; |
14befaf4 | 5092 | case PERL_MAGIC_qr: |
92110913 | 5093 | vtable = &PL_vtbl_regexp; |
c277df42 | 5094 | break; |
14befaf4 | 5095 | case PERL_MAGIC_sig: |
92110913 | 5096 | vtable = &PL_vtbl_sig; |
79072805 | 5097 | break; |
14befaf4 | 5098 | case PERL_MAGIC_sigelem: |
92110913 | 5099 | vtable = &PL_vtbl_sigelem; |
79072805 | 5100 | break; |
14befaf4 | 5101 | case PERL_MAGIC_taint: |
92110913 | 5102 | vtable = &PL_vtbl_taint; |
463ee0b2 | 5103 | break; |
14befaf4 | 5104 | case PERL_MAGIC_uvar: |
92110913 | 5105 | vtable = &PL_vtbl_uvar; |
79072805 | 5106 | break; |
14befaf4 | 5107 | case PERL_MAGIC_vec: |
92110913 | 5108 | vtable = &PL_vtbl_vec; |
79072805 | 5109 | break; |
a3874608 | 5110 | case PERL_MAGIC_arylen_p: |
bfcb3514 | 5111 | case PERL_MAGIC_rhash: |
8d2f4536 | 5112 | case PERL_MAGIC_symtab: |
ece467f9 | 5113 | case PERL_MAGIC_vstring: |
aec46f14 | 5114 | vtable = NULL; |
ece467f9 | 5115 | break; |
7e8c5dac HS |
5116 | case PERL_MAGIC_utf8: |
5117 | vtable = &PL_vtbl_utf8; | |
5118 | break; | |
14befaf4 | 5119 | case PERL_MAGIC_substr: |
92110913 | 5120 | vtable = &PL_vtbl_substr; |
79072805 | 5121 | break; |
14befaf4 | 5122 | case PERL_MAGIC_defelem: |
92110913 | 5123 | vtable = &PL_vtbl_defelem; |
5f05dabc | 5124 | break; |
14befaf4 | 5125 | case PERL_MAGIC_glob: |
92110913 | 5126 | vtable = &PL_vtbl_glob; |
79072805 | 5127 | break; |
14befaf4 | 5128 | case PERL_MAGIC_arylen: |
92110913 | 5129 | vtable = &PL_vtbl_arylen; |
79072805 | 5130 | break; |
14befaf4 | 5131 | case PERL_MAGIC_pos: |
92110913 | 5132 | vtable = &PL_vtbl_pos; |
a0d0e21e | 5133 | break; |
14befaf4 | 5134 | case PERL_MAGIC_backref: |
92110913 | 5135 | vtable = &PL_vtbl_backref; |
810b8aa5 | 5136 | break; |
14befaf4 DM |
5137 | case PERL_MAGIC_ext: |
5138 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
5139 | /* Useful for attaching extension internal data to perl vars. */ |
5140 | /* Note that multiple extensions may clash if magical scalars */ | |
5141 | /* etc holding private data from one are passed to another. */ | |
aec46f14 | 5142 | vtable = NULL; |
a0d0e21e | 5143 | break; |
79072805 | 5144 | default: |
14befaf4 | 5145 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 5146 | } |
68795e93 | 5147 | |
92110913 | 5148 | /* Rest of work is done else where */ |
aec46f14 | 5149 | mg = sv_magicext(sv,obj,how,vtable,name,namlen); |
68795e93 | 5150 | |
92110913 NIS |
5151 | switch (how) { |
5152 | case PERL_MAGIC_taint: | |
5153 | mg->mg_len = 1; | |
5154 | break; | |
5155 | case PERL_MAGIC_ext: | |
5156 | case PERL_MAGIC_dbfile: | |
5157 | SvRMAGICAL_on(sv); | |
5158 | break; | |
5159 | } | |
463ee0b2 LW |
5160 | } |
5161 | ||
c461cf8f JH |
5162 | /* |
5163 | =for apidoc sv_unmagic | |
5164 | ||
645c22ef | 5165 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
5166 | |
5167 | =cut | |
5168 | */ | |
5169 | ||
463ee0b2 | 5170 | int |
864dbfa3 | 5171 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
5172 | { |
5173 | MAGIC* mg; | |
5174 | MAGIC** mgp; | |
91bba347 | 5175 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
5176 | return 0; |
5177 | mgp = &SvMAGIC(sv); | |
5178 | for (mg = *mgp; mg; mg = *mgp) { | |
5179 | if (mg->mg_type == type) { | |
e1ec3a88 | 5180 | const MGVTBL* const vtbl = mg->mg_virtual; |
463ee0b2 | 5181 | *mgp = mg->mg_moremagic; |
1d7c1841 | 5182 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 5183 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 5184 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 5185 | if (mg->mg_len > 0) |
1edc1566 | 5186 | Safefree(mg->mg_ptr); |
565764a8 | 5187 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 5188 | SvREFCNT_dec((SV*)mg->mg_ptr); |
7e8c5dac HS |
5189 | else if (mg->mg_type == PERL_MAGIC_utf8 && mg->mg_ptr) |
5190 | Safefree(mg->mg_ptr); | |
9cbac4c7 | 5191 | } |
a0d0e21e LW |
5192 | if (mg->mg_flags & MGf_REFCOUNTED) |
5193 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
5194 | Safefree(mg); |
5195 | } | |
5196 | else | |
5197 | mgp = &mg->mg_moremagic; | |
79072805 | 5198 | } |
91bba347 | 5199 | if (!SvMAGIC(sv)) { |
463ee0b2 | 5200 | SvMAGICAL_off(sv); |
06759ea0 | 5201 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
5202 | } |
5203 | ||
5204 | return 0; | |
79072805 LW |
5205 | } |
5206 | ||
c461cf8f JH |
5207 | /* |
5208 | =for apidoc sv_rvweaken | |
5209 | ||
645c22ef DM |
5210 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
5211 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
5212 | push a back-reference to this RV onto the array of backreferences | |
5213 | associated with that magic. | |
c461cf8f JH |
5214 | |
5215 | =cut | |
5216 | */ | |
5217 | ||
810b8aa5 | 5218 | SV * |
864dbfa3 | 5219 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
5220 | { |
5221 | SV *tsv; | |
5222 | if (!SvOK(sv)) /* let undefs pass */ | |
5223 | return sv; | |
5224 | if (!SvROK(sv)) | |
cea2e8a9 | 5225 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 5226 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 5227 | if (ckWARN(WARN_MISC)) |
9014280d | 5228 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
5229 | return sv; |
5230 | } | |
5231 | tsv = SvRV(sv); | |
e15faf7d | 5232 | Perl_sv_add_backref(aTHX_ tsv, sv); |
810b8aa5 | 5233 | SvWEAKREF_on(sv); |
1c846c1f | 5234 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
5235 | return sv; |
5236 | } | |
5237 | ||
645c22ef DM |
5238 | /* Give tsv backref magic if it hasn't already got it, then push a |
5239 | * back-reference to sv onto the array associated with the backref magic. | |
5240 | */ | |
5241 | ||
e15faf7d NC |
5242 | void |
5243 | Perl_sv_add_backref(pTHX_ SV *tsv, SV *sv) | |
810b8aa5 GS |
5244 | { |
5245 | AV *av; | |
5246 | MAGIC *mg; | |
14befaf4 | 5247 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
5248 | av = (AV*)mg->mg_obj; |
5249 | else { | |
5250 | av = newAV(); | |
14befaf4 | 5251 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
d99b02a1 DM |
5252 | /* av now has a refcnt of 2, which avoids it getting freed |
5253 | * before us during global cleanup. The extra ref is removed | |
5254 | * by magic_killbackrefs() when tsv is being freed */ | |
810b8aa5 | 5255 | } |
d91d49e8 | 5256 | if (AvFILLp(av) >= AvMAX(av)) { |
d91d49e8 MM |
5257 | av_extend(av, AvFILLp(av)+1); |
5258 | } | |
5259 | AvARRAY(av)[++AvFILLp(av)] = sv; /* av_push() */ | |
810b8aa5 GS |
5260 | } |
5261 | ||
645c22ef DM |
5262 | /* delete a back-reference to ourselves from the backref magic associated |
5263 | * with the SV we point to. | |
5264 | */ | |
5265 | ||
1c846c1f | 5266 | STATIC void |
e15faf7d | 5267 | S_sv_del_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
5268 | { |
5269 | AV *av; | |
5270 | SV **svp; | |
5271 | I32 i; | |
c04a4dfe | 5272 | MAGIC *mg = NULL; |
e15faf7d NC |
5273 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) { |
5274 | if (PL_in_clean_all) | |
5275 | return; | |
5276 | } | |
14befaf4 | 5277 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 5278 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
5279 | av = (AV *)mg->mg_obj; |
5280 | svp = AvARRAY(av); | |
6a76db8b NC |
5281 | /* We shouldn't be in here more than once, but for paranoia reasons lets |
5282 | not assume this. */ | |
5283 | for (i = AvFILLp(av); i >= 0; i--) { | |
5284 | if (svp[i] == sv) { | |
5285 | const SSize_t fill = AvFILLp(av); | |
5286 | if (i != fill) { | |
5287 | /* We weren't the last entry. | |
5288 | An unordered list has this property that you can take the | |
5289 | last element off the end to fill the hole, and it's still | |
5290 | an unordered list :-) | |
5291 | */ | |
5292 | svp[i] = svp[fill]; | |
5293 | } | |
5294 | svp[fill] = Nullsv; | |
5295 | AvFILLp(av) = fill - 1; | |
5296 | } | |
5297 | } | |
810b8aa5 GS |
5298 | } |
5299 | ||
954c1994 GS |
5300 | /* |
5301 | =for apidoc sv_insert | |
5302 | ||
5303 | Inserts a string at the specified offset/length within the SV. Similar to | |
5304 | the Perl substr() function. | |
5305 | ||
5306 | =cut | |
5307 | */ | |
5308 | ||
79072805 | 5309 | void |
e1ec3a88 | 5310 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, const char *little, STRLEN littlelen) |
79072805 LW |
5311 | { |
5312 | register char *big; | |
5313 | register char *mid; | |
5314 | register char *midend; | |
5315 | register char *bigend; | |
5316 | register I32 i; | |
6ff81951 | 5317 | STRLEN curlen; |
1c846c1f | 5318 | |
79072805 | 5319 | |
8990e307 | 5320 | if (!bigstr) |
cea2e8a9 | 5321 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 5322 | SvPV_force(bigstr, curlen); |
60fa28ff | 5323 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
5324 | if (offset + len > curlen) { |
5325 | SvGROW(bigstr, offset+len+1); | |
93524f2b | 5326 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); |
6ff81951 GS |
5327 | SvCUR_set(bigstr, offset+len); |
5328 | } | |
79072805 | 5329 | |
69b47968 | 5330 | SvTAINT(bigstr); |
79072805 LW |
5331 | i = littlelen - len; |
5332 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 5333 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
5334 | mid = big + offset + len; |
5335 | midend = bigend = big + SvCUR(bigstr); | |
5336 | bigend += i; | |
5337 | *bigend = '\0'; | |
5338 | while (midend > mid) /* shove everything down */ | |
5339 | *--bigend = *--midend; | |
5340 | Move(little,big+offset,littlelen,char); | |
b162af07 | 5341 | SvCUR_set(bigstr, SvCUR(bigstr) + i); |
79072805 LW |
5342 | SvSETMAGIC(bigstr); |
5343 | return; | |
5344 | } | |
5345 | else if (i == 0) { | |
463ee0b2 | 5346 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
5347 | SvSETMAGIC(bigstr); |
5348 | return; | |
5349 | } | |
5350 | ||
463ee0b2 | 5351 | big = SvPVX(bigstr); |
79072805 LW |
5352 | mid = big + offset; |
5353 | midend = mid + len; | |
5354 | bigend = big + SvCUR(bigstr); | |
5355 | ||
5356 | if (midend > bigend) | |
cea2e8a9 | 5357 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
5358 | |
5359 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
5360 | if (littlelen) { | |
5361 | Move(little, mid, littlelen,char); | |
5362 | mid += littlelen; | |
5363 | } | |
5364 | i = bigend - midend; | |
5365 | if (i > 0) { | |
5366 | Move(midend, mid, i,char); | |
5367 | mid += i; | |
5368 | } | |
5369 | *mid = '\0'; | |
5370 | SvCUR_set(bigstr, mid - big); | |
5371 | } | |
155aba94 | 5372 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
5373 | midend -= littlelen; |
5374 | mid = midend; | |
5375 | sv_chop(bigstr,midend-i); | |
5376 | big += i; | |
5377 | while (i--) | |
5378 | *--midend = *--big; | |
5379 | if (littlelen) | |
5380 | Move(little, mid, littlelen,char); | |
5381 | } | |
5382 | else if (littlelen) { | |
5383 | midend -= littlelen; | |
5384 | sv_chop(bigstr,midend); | |
5385 | Move(little,midend,littlelen,char); | |
5386 | } | |
5387 | else { | |
5388 | sv_chop(bigstr,midend); | |
5389 | } | |
5390 | SvSETMAGIC(bigstr); | |
5391 | } | |
5392 | ||
c461cf8f JH |
5393 | /* |
5394 | =for apidoc sv_replace | |
5395 | ||
5396 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
5397 | The target SV physically takes over ownership of the body of the source SV |
5398 | and inherits its flags; however, the target keeps any magic it owns, | |
5399 | and any magic in the source is discarded. | |
ff276b08 | 5400 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 5401 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
5402 | |
5403 | =cut | |
5404 | */ | |
79072805 LW |
5405 | |
5406 | void | |
864dbfa3 | 5407 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 | 5408 | { |
a3b680e6 | 5409 | const U32 refcnt = SvREFCNT(sv); |
765f542d | 5410 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
30e5c352 | 5411 | if (SvREFCNT(nsv) != 1) { |
7437becc | 5412 | Perl_croak(aTHX_ "panic: reference miscount on nsv in sv_replace() (%" |
30e5c352 NC |
5413 | UVuf " != 1)", (UV) SvREFCNT(nsv)); |
5414 | } | |
93a17b20 | 5415 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
5416 | if (SvMAGICAL(nsv)) |
5417 | mg_free(nsv); | |
5418 | else | |
5419 | sv_upgrade(nsv, SVt_PVMG); | |
b162af07 | 5420 | SvMAGIC_set(nsv, SvMAGIC(sv)); |
a0d0e21e | 5421 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 | 5422 | SvMAGICAL_off(sv); |
b162af07 | 5423 | SvMAGIC_set(sv, NULL); |
93a17b20 | 5424 | } |
79072805 LW |
5425 | SvREFCNT(sv) = 0; |
5426 | sv_clear(sv); | |
477f5d66 | 5427 | assert(!SvREFCNT(sv)); |
fd0854ff DM |
5428 | #ifdef DEBUG_LEAKING_SCALARS |
5429 | sv->sv_flags = nsv->sv_flags; | |
5430 | sv->sv_any = nsv->sv_any; | |
5431 | sv->sv_refcnt = nsv->sv_refcnt; | |
f34d0642 | 5432 | sv->sv_u = nsv->sv_u; |
fd0854ff | 5433 | #else |
79072805 | 5434 | StructCopy(nsv,sv,SV); |
fd0854ff | 5435 | #endif |
7b2c381c NC |
5436 | /* Currently could join these into one piece of pointer arithmetic, but |
5437 | it would be unclear. */ | |
5438 | if(SvTYPE(sv) == SVt_IV) | |
5439 | SvANY(sv) | |
339049b0 | 5440 | = (XPVIV*)((char*)&(sv->sv_u.svu_iv) - STRUCT_OFFSET(XPVIV, xiv_iv)); |
7b2c381c | 5441 | else if (SvTYPE(sv) == SVt_RV) { |
339049b0 | 5442 | SvANY(sv) = &sv->sv_u.svu_rv; |
7b2c381c NC |
5443 | } |
5444 | ||
fd0854ff | 5445 | |
f8c7b90f | 5446 | #ifdef PERL_OLD_COPY_ON_WRITE |
d3d0e6f1 NC |
5447 | if (SvIsCOW_normal(nsv)) { |
5448 | /* We need to follow the pointers around the loop to make the | |
5449 | previous SV point to sv, rather than nsv. */ | |
5450 | SV *next; | |
5451 | SV *current = nsv; | |
5452 | while ((next = SV_COW_NEXT_SV(current)) != nsv) { | |
5453 | assert(next); | |
5454 | current = next; | |
3f7c398e | 5455 | assert(SvPVX_const(current) == SvPVX_const(nsv)); |
d3d0e6f1 NC |
5456 | } |
5457 | /* Make the SV before us point to the SV after us. */ | |
5458 | if (DEBUG_C_TEST) { | |
5459 | PerlIO_printf(Perl_debug_log, "previous is\n"); | |
5460 | sv_dump(current); | |
a29f6d03 NC |
5461 | PerlIO_printf(Perl_debug_log, |
5462 | "move it from 0x%"UVxf" to 0x%"UVxf"\n", | |
d3d0e6f1 NC |
5463 | (UV) SV_COW_NEXT_SV(current), (UV) sv); |
5464 | } | |
a29f6d03 | 5465 | SV_COW_NEXT_SV_SET(current, sv); |
d3d0e6f1 NC |
5466 | } |
5467 | #endif | |
79072805 | 5468 | SvREFCNT(sv) = refcnt; |
1edc1566 | 5469 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
39cf41c2 | 5470 | SvREFCNT(nsv) = 0; |
463ee0b2 | 5471 | del_SV(nsv); |
79072805 LW |
5472 | } |
5473 | ||
c461cf8f JH |
5474 | /* |
5475 | =for apidoc sv_clear | |
5476 | ||
645c22ef DM |
5477 | Clear an SV: call any destructors, free up any memory used by the body, |
5478 | and free the body itself. The SV's head is I<not> freed, although | |
5479 | its type is set to all 1's so that it won't inadvertently be assumed | |
5480 | to be live during global destruction etc. | |
5481 | This function should only be called when REFCNT is zero. Most of the time | |
5482 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
5483 | instead. | |
c461cf8f JH |
5484 | |
5485 | =cut | |
5486 | */ | |
5487 | ||
79072805 | 5488 | void |
864dbfa3 | 5489 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 5490 | { |
27da23d5 | 5491 | dVAR; |
82bb6deb NC |
5492 | void** old_body_arena; |
5493 | size_t old_body_offset; | |
5494 | const U32 type = SvTYPE(sv); | |
5495 | ||
79072805 LW |
5496 | assert(sv); |
5497 | assert(SvREFCNT(sv) == 0); | |
5498 | ||
82bb6deb NC |
5499 | if (type <= SVt_IV) |
5500 | return; | |
5501 | ||
5502 | old_body_arena = 0; | |
5503 | old_body_offset = 0; | |
5504 | ||
ed6116ce | 5505 | if (SvOBJECT(sv)) { |
3280af22 | 5506 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 5507 | dSP; |
893645bd | 5508 | HV* stash; |
d460ef45 | 5509 | do { |
b464bac0 | 5510 | CV* destructor; |
4e8e7886 | 5511 | stash = SvSTASH(sv); |
32251b26 | 5512 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 | 5513 | if (destructor) { |
1b6737cc | 5514 | SV* const tmpref = newRV(sv); |
5cc433a6 | 5515 | SvREADONLY_on(tmpref); /* DESTROY() could be naughty */ |
4e8e7886 | 5516 | ENTER; |
e788e7d3 | 5517 | PUSHSTACKi(PERLSI_DESTROY); |
4e8e7886 GS |
5518 | EXTEND(SP, 2); |
5519 | PUSHMARK(SP); | |
5cc433a6 | 5520 | PUSHs(tmpref); |
4e8e7886 | 5521 | PUTBACK; |
44389ee9 | 5522 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR|G_VOID); |
7a5fa8a2 NIS |
5523 | |
5524 | ||
d3acc0f7 | 5525 | POPSTACK; |
3095d977 | 5526 | SPAGAIN; |
4e8e7886 | 5527 | LEAVE; |
5cc433a6 AB |
5528 | if(SvREFCNT(tmpref) < 2) { |
5529 | /* tmpref is not kept alive! */ | |
5530 | SvREFCNT(sv)--; | |
b162af07 | 5531 | SvRV_set(tmpref, NULL); |
5cc433a6 AB |
5532 | SvROK_off(tmpref); |
5533 | } | |
5534 | SvREFCNT_dec(tmpref); | |
4e8e7886 GS |
5535 | } |
5536 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 5537 | |
6f44e0a4 JP |
5538 | |
5539 | if (SvREFCNT(sv)) { | |
5540 | if (PL_in_clean_objs) | |
cea2e8a9 | 5541 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
bfcb3514 | 5542 | HvNAME_get(stash)); |
6f44e0a4 JP |
5543 | /* DESTROY gave object new lease on life */ |
5544 | return; | |
5545 | } | |
a0d0e21e | 5546 | } |
4e8e7886 | 5547 | |
a0d0e21e | 5548 | if (SvOBJECT(sv)) { |
4e8e7886 | 5549 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e | 5550 | SvOBJECT_off(sv); /* Curse the object. */ |
82bb6deb | 5551 | if (type != SVt_PVIO) |
3280af22 | 5552 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 5553 | } |
463ee0b2 | 5554 | } |
82bb6deb | 5555 | if (type >= SVt_PVMG) { |
524189f1 JH |
5556 | if (SvMAGIC(sv)) |
5557 | mg_free(sv); | |
82bb6deb | 5558 | if (type == SVt_PVMG && SvFLAGS(sv) & SVpad_TYPED) |
524189f1 JH |
5559 | SvREFCNT_dec(SvSTASH(sv)); |
5560 | } | |
82bb6deb | 5561 | switch (type) { |
8990e307 | 5562 | case SVt_PVIO: |
df0bd2f4 GS |
5563 | if (IoIFP(sv) && |
5564 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5565 | IoIFP(sv) != PerlIO_stdout() && |
5566 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5567 | { |
f2b5be74 | 5568 | io_close((IO*)sv, FALSE); |
93578b34 | 5569 | } |
1d7c1841 | 5570 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5571 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5572 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5573 | Safefree(IoTOP_NAME(sv)); |
5574 | Safefree(IoFMT_NAME(sv)); | |
5575 | Safefree(IoBOTTOM_NAME(sv)); | |
82bb6deb NC |
5576 | /* PVIOs aren't from arenas */ |
5577 | goto freescalar; | |
79072805 | 5578 | case SVt_PVBM: |
82bb6deb | 5579 | old_body_arena = (void **) &PL_xpvbm_root; |
a0d0e21e | 5580 | goto freescalar; |
79072805 | 5581 | case SVt_PVCV: |
82bb6deb | 5582 | old_body_arena = (void **) &PL_xpvcv_root; |
748a9306 | 5583 | case SVt_PVFM: |
82bb6deb | 5584 | /* PVFMs aren't from arenas */ |
85e6fe83 | 5585 | cv_undef((CV*)sv); |
a0d0e21e | 5586 | goto freescalar; |
79072805 | 5587 | case SVt_PVHV: |
85e6fe83 | 5588 | hv_undef((HV*)sv); |
82bb6deb NC |
5589 | old_body_arena = (void **) &PL_xpvhv_root; |
5590 | old_body_offset = STRUCT_OFFSET(XPVHV, xhv_fill); | |
a0d0e21e | 5591 | break; |
79072805 | 5592 | case SVt_PVAV: |
85e6fe83 | 5593 | av_undef((AV*)sv); |
82bb6deb NC |
5594 | old_body_arena = (void **) &PL_xpvav_root; |
5595 | old_body_offset = STRUCT_OFFSET(XPVAV, xav_fill); | |
a0d0e21e | 5596 | break; |
02270b4e | 5597 | case SVt_PVLV: |
dd28f7bb DM |
5598 | if (LvTYPE(sv) == 'T') { /* for tie: return HE to pool */ |
5599 | SvREFCNT_dec(HeKEY_sv((HE*)LvTARG(sv))); | |
5600 | HeNEXT((HE*)LvTARG(sv)) = PL_hv_fetch_ent_mh; | |
5601 | PL_hv_fetch_ent_mh = (HE*)LvTARG(sv); | |
5602 | } | |
5603 | else if (LvTYPE(sv) != 't') /* unless tie: unrefcnted fake SV** */ | |
5604 | SvREFCNT_dec(LvTARG(sv)); | |
82bb6deb | 5605 | old_body_arena = (void **) &PL_xpvlv_root; |
02270b4e | 5606 | goto freescalar; |
a0d0e21e | 5607 | case SVt_PVGV: |
1edc1566 | 5608 | gp_free((GV*)sv); |
a0d0e21e | 5609 | Safefree(GvNAME(sv)); |
893645bd NC |
5610 | /* If we're in a stash, we don't own a reference to it. However it does |
5611 | have a back reference to us, which needs to be cleared. */ | |
5612 | if (GvSTASH(sv)) | |
5613 | sv_del_backref((SV*)GvSTASH(sv), sv); | |
82bb6deb NC |
5614 | old_body_arena = (void **) &PL_xpvgv_root; |
5615 | goto freescalar; | |
79072805 | 5616 | case SVt_PVMG: |
82bb6deb NC |
5617 | old_body_arena = (void **) &PL_xpvmg_root; |
5618 | goto freescalar; | |
79072805 | 5619 | case SVt_PVNV: |
82bb6deb NC |
5620 | old_body_arena = (void **) &PL_xpvnv_root; |
5621 | goto freescalar; | |
79072805 | 5622 | case SVt_PVIV: |
82bb6deb NC |
5623 | old_body_arena = (void **) &PL_xpviv_root; |
5624 | old_body_offset = STRUCT_OFFSET(XPVIV, xpv_cur); | |
a0d0e21e | 5625 | freescalar: |
5228ca4e NC |
5626 | /* Don't bother with SvOOK_off(sv); as we're only going to free it. */ |
5627 | if (SvOOK(sv)) { | |
93524f2b | 5628 | SvPV_set(sv, SvPVX_mutable(sv) - SvIVX(sv)); |
5228ca4e NC |
5629 | /* Don't even bother with turning off the OOK flag. */ |
5630 | } | |
82bb6deb | 5631 | goto pvrv_common; |
79072805 | 5632 | case SVt_PV: |
82bb6deb NC |
5633 | old_body_arena = (void **) &PL_xpv_root; |
5634 | old_body_offset = STRUCT_OFFSET(XPV, xpv_cur); | |
a0d0e21e | 5635 | case SVt_RV: |
82bb6deb | 5636 | pvrv_common: |
810b8aa5 | 5637 | if (SvROK(sv)) { |
e15faf7d | 5638 | SV *target = SvRV(sv); |
810b8aa5 | 5639 | if (SvWEAKREF(sv)) |
e15faf7d | 5640 | sv_del_backref(target, sv); |
810b8aa5 | 5641 | else |
e15faf7d | 5642 | SvREFCNT_dec(target); |
810b8aa5 | 5643 | } |
f8c7b90f | 5644 | #ifdef PERL_OLD_COPY_ON_WRITE |
3f7c398e | 5645 | else if (SvPVX_const(sv)) { |
765f542d NC |
5646 | if (SvIsCOW(sv)) { |
5647 | /* I believe I need to grab the global SV mutex here and | |
5648 | then recheck the COW status. */ | |
46187eeb NC |
5649 | if (DEBUG_C_TEST) { |
5650 | PerlIO_printf(Perl_debug_log, "Copy on write: clear\n"); | |
e419cbc5 | 5651 | sv_dump(sv); |
46187eeb | 5652 | } |
bdd68bc3 NC |
5653 | sv_release_COW(sv, SvPVX_const(sv), SvLEN(sv), |
5654 | SV_COW_NEXT_SV(sv)); | |
765f542d NC |
5655 | /* And drop it here. */ |
5656 | SvFAKE_off(sv); | |
5657 | } else if (SvLEN(sv)) { | |
3f7c398e | 5658 | Safefree(SvPVX_const(sv)); |
765f542d NC |
5659 | } |
5660 | } | |
5661 | #else | |
3f7c398e | 5662 | else if (SvPVX_const(sv) && SvLEN(sv)) |
94010e71 | 5663 | Safefree(SvPVX_mutable(sv)); |
3f7c398e | 5664 | else if (SvPVX_const(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
bdd68bc3 | 5665 | unshare_hek(SvSHARED_HEK_FROM_PV(SvPVX_const(sv))); |
1c846c1f NIS |
5666 | SvFAKE_off(sv); |
5667 | } | |
765f542d | 5668 | #endif |
79072805 LW |
5669 | break; |
5670 | case SVt_NV: | |
82bb6deb | 5671 | old_body_arena = (void **) &PL_xnv_root; |
79072805 LW |
5672 | break; |
5673 | } | |
5674 | ||
893645bd NC |
5675 | SvFLAGS(sv) &= SVf_BREAK; |
5676 | SvFLAGS(sv) |= SVTYPEMASK; | |
5677 | ||
82bb6deb NC |
5678 | #ifndef PURIFY |
5679 | if (old_body_arena) { | |
5680 | del_body(((char *)SvANY(sv) + old_body_offset), old_body_arena); | |
79072805 | 5681 | } |
82bb6deb NC |
5682 | else |
5683 | #endif | |
5684 | if (type > SVt_RV) { | |
5685 | my_safefree(SvANY(sv)); | |
5686 | } | |
79072805 LW |
5687 | } |
5688 | ||
645c22ef DM |
5689 | /* |
5690 | =for apidoc sv_newref | |
5691 | ||
5692 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
5693 | instead. | |
5694 | ||
5695 | =cut | |
5696 | */ | |
5697 | ||
79072805 | 5698 | SV * |
864dbfa3 | 5699 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 5700 | { |
463ee0b2 | 5701 | if (sv) |
4db098f4 | 5702 | (SvREFCNT(sv))++; |
79072805 LW |
5703 | return sv; |
5704 | } | |
5705 | ||
c461cf8f JH |
5706 | /* |
5707 | =for apidoc sv_free | |
5708 | ||
645c22ef DM |
5709 | Decrement an SV's reference count, and if it drops to zero, call |
5710 | C<sv_clear> to invoke destructors and free up any memory used by | |
5711 | the body; finally, deallocate the SV's head itself. | |
5712 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
5713 | |
5714 | =cut | |
5715 | */ | |
5716 | ||
79072805 | 5717 | void |
864dbfa3 | 5718 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 5719 | { |
27da23d5 | 5720 | dVAR; |
79072805 LW |
5721 | if (!sv) |
5722 | return; | |
a0d0e21e LW |
5723 | if (SvREFCNT(sv) == 0) { |
5724 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
5725 | /* this SV's refcnt has been artificially decremented to |
5726 | * trigger cleanup */ | |
a0d0e21e | 5727 | return; |
3280af22 | 5728 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 5729 | return; |
d689ffdd JP |
5730 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5731 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5732 | SvREFCNT(sv) = (~(U32)0)/2; | |
5733 | return; | |
5734 | } | |
41e4abd8 | 5735 | if (ckWARN_d(WARN_INTERNAL)) { |
d5dede04 | 5736 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
472d47bc SB |
5737 | "Attempt to free unreferenced scalar: SV 0x%"UVxf |
5738 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
41e4abd8 NC |
5739 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
5740 | Perl_dump_sv_child(aTHX_ sv); | |
5741 | #endif | |
5742 | } | |
79072805 LW |
5743 | return; |
5744 | } | |
4db098f4 | 5745 | if (--(SvREFCNT(sv)) > 0) |
8990e307 | 5746 | return; |
8c4d3c90 NC |
5747 | Perl_sv_free2(aTHX_ sv); |
5748 | } | |
5749 | ||
5750 | void | |
5751 | Perl_sv_free2(pTHX_ SV *sv) | |
5752 | { | |
27da23d5 | 5753 | dVAR; |
463ee0b2 LW |
5754 | #ifdef DEBUGGING |
5755 | if (SvTEMP(sv)) { | |
0453d815 | 5756 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 5757 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
472d47bc SB |
5758 | "Attempt to free temp prematurely: SV 0x%"UVxf |
5759 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 | 5760 | return; |
79072805 | 5761 | } |
463ee0b2 | 5762 | #endif |
d689ffdd JP |
5763 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
5764 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
5765 | SvREFCNT(sv) = (~(U32)0)/2; | |
5766 | return; | |
5767 | } | |
79072805 | 5768 | sv_clear(sv); |
477f5d66 CS |
5769 | if (! SvREFCNT(sv)) |
5770 | del_SV(sv); | |
79072805 LW |
5771 | } |
5772 | ||
954c1994 GS |
5773 | /* |
5774 | =for apidoc sv_len | |
5775 | ||
645c22ef DM |
5776 | Returns the length of the string in the SV. Handles magic and type |
5777 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
5778 | |
5779 | =cut | |
5780 | */ | |
5781 | ||
79072805 | 5782 | STRLEN |
864dbfa3 | 5783 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 5784 | { |
463ee0b2 | 5785 | STRLEN len; |
79072805 LW |
5786 | |
5787 | if (!sv) | |
5788 | return 0; | |
5789 | ||
8990e307 | 5790 | if (SvGMAGICAL(sv)) |
565764a8 | 5791 | len = mg_length(sv); |
8990e307 | 5792 | else |
4d84ee25 | 5793 | (void)SvPV_const(sv, len); |
463ee0b2 | 5794 | return len; |
79072805 LW |
5795 | } |
5796 | ||
c461cf8f JH |
5797 | /* |
5798 | =for apidoc sv_len_utf8 | |
5799 | ||
5800 | Returns the number of characters in the string in an SV, counting wide | |
1e54db1a | 5801 | UTF-8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
5802 | |
5803 | =cut | |
5804 | */ | |
5805 | ||
7e8c5dac HS |
5806 | /* |
5807 | * The length is cached in PERL_UTF8_magic, in the mg_len field. Also the | |
5808 | * mg_ptr is used, by sv_pos_u2b(), see the comments of S_utf8_mg_pos_init(). | |
5809 | * (Note that the mg_len is not the length of the mg_ptr field.) | |
7a5fa8a2 | 5810 | * |
7e8c5dac HS |
5811 | */ |
5812 | ||
a0ed51b3 | 5813 | STRLEN |
864dbfa3 | 5814 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 5815 | { |
a0ed51b3 LW |
5816 | if (!sv) |
5817 | return 0; | |
5818 | ||
a0ed51b3 | 5819 | if (SvGMAGICAL(sv)) |
b76347f2 | 5820 | return mg_length(sv); |
a0ed51b3 | 5821 | else |
b76347f2 | 5822 | { |
7e8c5dac | 5823 | STRLEN len, ulen; |
e62f0680 | 5824 | const U8 *s = (U8*)SvPV_const(sv, len); |
7e8c5dac HS |
5825 | MAGIC *mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_utf8) : 0; |
5826 | ||
e23c8137 | 5827 | if (mg && mg->mg_len != -1 && (mg->mg_len > 0 || len == 0)) { |
7e8c5dac | 5828 | ulen = mg->mg_len; |
e23c8137 JH |
5829 | #ifdef PERL_UTF8_CACHE_ASSERT |
5830 | assert(ulen == Perl_utf8_length(aTHX_ s, s + len)); | |
5831 | #endif | |
5832 | } | |
7e8c5dac HS |
5833 | else { |
5834 | ulen = Perl_utf8_length(aTHX_ s, s + len); | |
5835 | if (!mg && !SvREADONLY(sv)) { | |
5836 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
5837 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
5838 | assert(mg); | |
5839 | } | |
5840 | if (mg) | |
5841 | mg->mg_len = ulen; | |
5842 | } | |
5843 | return ulen; | |
5844 | } | |
5845 | } | |
5846 | ||
5847 | /* S_utf8_mg_pos_init() is used to initialize the mg_ptr field of | |
5848 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5849 | * between UTF-8 and byte offsets. There are two (substr offset and substr | |
5850 | * length, the i offset, PERL_MAGIC_UTF8_CACHESIZE) times two (UTF-8 offset | |
5851 | * and byte offset) cache positions. | |
5852 | * | |
5853 | * The mg_len field is used by sv_len_utf8(), see its comments. | |
5854 | * Note that the mg_len is not the length of the mg_ptr field. | |
5855 | * | |
5856 | */ | |
5857 | STATIC bool | |
245d4a47 NC |
5858 | S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, |
5859 | I32 offsetp, const U8 *s, const U8 *start) | |
7e8c5dac | 5860 | { |
7a5fa8a2 | 5861 | bool found = FALSE; |
7e8c5dac HS |
5862 | |
5863 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
8f78557a | 5864 | if (!*mgp) |
27da23d5 | 5865 | *mgp = sv_magicext(sv, 0, PERL_MAGIC_utf8, (MGVTBL*)&PL_vtbl_utf8, 0, 0); |
7e8c5dac | 5866 | assert(*mgp); |
b76347f2 | 5867 | |
7e8c5dac HS |
5868 | if ((*mgp)->mg_ptr) |
5869 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
5870 | else { | |
a02a5408 | 5871 | Newxz(*cachep, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); |
7e8c5dac HS |
5872 | (*mgp)->mg_ptr = (char *) *cachep; |
5873 | } | |
5874 | assert(*cachep); | |
5875 | ||
a3b680e6 | 5876 | (*cachep)[i] = offsetp; |
7e8c5dac HS |
5877 | (*cachep)[i+1] = s - start; |
5878 | found = TRUE; | |
a0ed51b3 | 5879 | } |
7e8c5dac HS |
5880 | |
5881 | return found; | |
a0ed51b3 LW |
5882 | } |
5883 | ||
645c22ef | 5884 | /* |
7e8c5dac HS |
5885 | * S_utf8_mg_pos() is used to query and update mg_ptr field of |
5886 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
5887 | * between UTF-8 and byte offsets. See also the comments of | |
5888 | * S_utf8_mg_pos_init(). | |
5889 | * | |
5890 | */ | |
5891 | STATIC bool | |
245d4a47 | 5892 | S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, const U8 **sp, const U8 *start, const U8 *send) |
7e8c5dac HS |
5893 | { |
5894 | bool found = FALSE; | |
5895 | ||
5896 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
5897 | if (!*mgp) | |
5898 | *mgp = mg_find(sv, PERL_MAGIC_utf8); | |
5899 | if (*mgp && (*mgp)->mg_ptr) { | |
5900 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
e23c8137 | 5901 | ASSERT_UTF8_CACHE(*cachep); |
667208dd | 5902 | if ((*cachep)[i] == (STRLEN)uoff) /* An exact match. */ |
7a5fa8a2 | 5903 | found = TRUE; |
7e8c5dac HS |
5904 | else { /* We will skip to the right spot. */ |
5905 | STRLEN forw = 0; | |
5906 | STRLEN backw = 0; | |
a3b680e6 | 5907 | const U8* p = NULL; |
7e8c5dac HS |
5908 | |
5909 | /* The assumption is that going backward is half | |
5910 | * the speed of going forward (that's where the | |
5911 | * 2 * backw in the below comes from). (The real | |
5912 | * figure of course depends on the UTF-8 data.) */ | |
5913 | ||
667208dd | 5914 | if ((*cachep)[i] > (STRLEN)uoff) { |
7e8c5dac | 5915 | forw = uoff; |
667208dd | 5916 | backw = (*cachep)[i] - (STRLEN)uoff; |
7e8c5dac HS |
5917 | |
5918 | if (forw < 2 * backw) | |
5919 | p = start; | |
5920 | else | |
5921 | p = start + (*cachep)[i+1]; | |
5922 | } | |
5923 | /* Try this only for the substr offset (i == 0), | |
5924 | * not for the substr length (i == 2). */ | |
5925 | else if (i == 0) { /* (*cachep)[i] < uoff */ | |
a3b680e6 | 5926 | const STRLEN ulen = sv_len_utf8(sv); |
7e8c5dac | 5927 | |
667208dd JH |
5928 | if ((STRLEN)uoff < ulen) { |
5929 | forw = (STRLEN)uoff - (*cachep)[i]; | |
5930 | backw = ulen - (STRLEN)uoff; | |
7e8c5dac HS |
5931 | |
5932 | if (forw < 2 * backw) | |
5933 | p = start + (*cachep)[i+1]; | |
5934 | else | |
5935 | p = send; | |
5936 | } | |
5937 | ||
5938 | /* If the string is not long enough for uoff, | |
5939 | * we could extend it, but not at this low a level. */ | |
5940 | } | |
5941 | ||
5942 | if (p) { | |
5943 | if (forw < 2 * backw) { | |
5944 | while (forw--) | |
5945 | p += UTF8SKIP(p); | |
5946 | } | |
5947 | else { | |
5948 | while (backw--) { | |
5949 | p--; | |
5950 | while (UTF8_IS_CONTINUATION(*p)) | |
5951 | p--; | |
5952 | } | |
5953 | } | |
5954 | ||
5955 | /* Update the cache. */ | |
667208dd | 5956 | (*cachep)[i] = (STRLEN)uoff; |
7e8c5dac | 5957 | (*cachep)[i+1] = p - start; |
8f78557a AE |
5958 | |
5959 | /* Drop the stale "length" cache */ | |
5960 | if (i == 0) { | |
5961 | (*cachep)[2] = 0; | |
5962 | (*cachep)[3] = 0; | |
5963 | } | |
7a5fa8a2 | 5964 | |
7e8c5dac HS |
5965 | found = TRUE; |
5966 | } | |
5967 | } | |
5968 | if (found) { /* Setup the return values. */ | |
5969 | *offsetp = (*cachep)[i+1]; | |
5970 | *sp = start + *offsetp; | |
5971 | if (*sp >= send) { | |
5972 | *sp = send; | |
5973 | *offsetp = send - start; | |
5974 | } | |
5975 | else if (*sp < start) { | |
5976 | *sp = start; | |
5977 | *offsetp = 0; | |
5978 | } | |
5979 | } | |
5980 | } | |
e23c8137 JH |
5981 | #ifdef PERL_UTF8_CACHE_ASSERT |
5982 | if (found) { | |
5983 | U8 *s = start; | |
5984 | I32 n = uoff; | |
5985 | ||
5986 | while (n-- && s < send) | |
5987 | s += UTF8SKIP(s); | |
5988 | ||
5989 | if (i == 0) { | |
5990 | assert(*offsetp == s - start); | |
5991 | assert((*cachep)[0] == (STRLEN)uoff); | |
5992 | assert((*cachep)[1] == *offsetp); | |
5993 | } | |
5994 | ASSERT_UTF8_CACHE(*cachep); | |
5995 | } | |
5996 | #endif | |
7e8c5dac | 5997 | } |
e23c8137 | 5998 | |
7e8c5dac HS |
5999 | return found; |
6000 | } | |
7a5fa8a2 | 6001 | |
7e8c5dac | 6002 | /* |
645c22ef DM |
6003 | =for apidoc sv_pos_u2b |
6004 | ||
1e54db1a | 6005 | Converts the value pointed to by offsetp from a count of UTF-8 chars from |
645c22ef DM |
6006 | the start of the string, to a count of the equivalent number of bytes; if |
6007 | lenp is non-zero, it does the same to lenp, but this time starting from | |
6008 | the offset, rather than from the start of the string. Handles magic and | |
6009 | type coercion. | |
6010 | ||
6011 | =cut | |
6012 | */ | |
6013 | ||
7e8c5dac HS |
6014 | /* |
6015 | * sv_pos_u2b() uses, like sv_pos_b2u(), the mg_ptr of the potential | |
6016 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
6017 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
6018 | * | |
6019 | */ | |
6020 | ||
a0ed51b3 | 6021 | void |
864dbfa3 | 6022 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 6023 | { |
245d4a47 | 6024 | const U8 *start; |
a0ed51b3 LW |
6025 | STRLEN len; |
6026 | ||
6027 | if (!sv) | |
6028 | return; | |
6029 | ||
245d4a47 | 6030 | start = (U8*)SvPV_const(sv, len); |
7e8c5dac | 6031 | if (len) { |
b464bac0 AL |
6032 | STRLEN boffset = 0; |
6033 | STRLEN *cache = 0; | |
245d4a47 NC |
6034 | const U8 *s = start; |
6035 | I32 uoffset = *offsetp; | |
9d4ba2ae | 6036 | const U8 * const send = s + len; |
245d4a47 NC |
6037 | MAGIC *mg = 0; |
6038 | bool found = FALSE; | |
7e8c5dac | 6039 | |
bdf77a2a | 6040 | if (utf8_mg_pos(sv, &mg, &cache, 0, offsetp, *offsetp, &s, start, send)) |
7e8c5dac HS |
6041 | found = TRUE; |
6042 | if (!found && uoffset > 0) { | |
6043 | while (s < send && uoffset--) | |
6044 | s += UTF8SKIP(s); | |
6045 | if (s >= send) | |
6046 | s = send; | |
a3b680e6 | 6047 | if (utf8_mg_pos_init(sv, &mg, &cache, 0, *offsetp, s, start)) |
7e8c5dac HS |
6048 | boffset = cache[1]; |
6049 | *offsetp = s - start; | |
6050 | } | |
6051 | if (lenp) { | |
6052 | found = FALSE; | |
6053 | start = s; | |
ec062429 | 6054 | if (utf8_mg_pos(sv, &mg, &cache, 2, lenp, *lenp, &s, start, send)) { |
7e8c5dac HS |
6055 | *lenp -= boffset; |
6056 | found = TRUE; | |
6057 | } | |
6058 | if (!found && *lenp > 0) { | |
6059 | I32 ulen = *lenp; | |
6060 | if (ulen > 0) | |
6061 | while (s < send && ulen--) | |
6062 | s += UTF8SKIP(s); | |
6063 | if (s >= send) | |
6064 | s = send; | |
a3b680e6 | 6065 | utf8_mg_pos_init(sv, &mg, &cache, 2, *lenp, s, start); |
7e8c5dac HS |
6066 | } |
6067 | *lenp = s - start; | |
6068 | } | |
e23c8137 | 6069 | ASSERT_UTF8_CACHE(cache); |
7e8c5dac HS |
6070 | } |
6071 | else { | |
6072 | *offsetp = 0; | |
6073 | if (lenp) | |
6074 | *lenp = 0; | |
a0ed51b3 | 6075 | } |
e23c8137 | 6076 | |
a0ed51b3 LW |
6077 | return; |
6078 | } | |
6079 | ||
645c22ef DM |
6080 | /* |
6081 | =for apidoc sv_pos_b2u | |
6082 | ||
6083 | Converts the value pointed to by offsetp from a count of bytes from the | |
1e54db1a | 6084 | start of the string, to a count of the equivalent number of UTF-8 chars. |
645c22ef DM |
6085 | Handles magic and type coercion. |
6086 | ||
6087 | =cut | |
6088 | */ | |
6089 | ||
7e8c5dac HS |
6090 | /* |
6091 | * sv_pos_b2u() uses, like sv_pos_u2b(), the mg_ptr of the potential | |
6092 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
6093 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
6094 | * | |
6095 | */ | |
6096 | ||
a0ed51b3 | 6097 | void |
7e8c5dac | 6098 | Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) |
a0ed51b3 | 6099 | { |
83003860 | 6100 | const U8* s; |
a0ed51b3 LW |
6101 | STRLEN len; |
6102 | ||
6103 | if (!sv) | |
6104 | return; | |
6105 | ||
83003860 | 6106 | s = (const U8*)SvPV_const(sv, len); |
eb160463 | 6107 | if ((I32)len < *offsetp) |
a0dbb045 | 6108 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
7e8c5dac | 6109 | else { |
83003860 | 6110 | const U8* send = s + *offsetp; |
7e8c5dac HS |
6111 | MAGIC* mg = NULL; |
6112 | STRLEN *cache = NULL; | |
6113 | ||
6114 | len = 0; | |
6115 | ||
6116 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
6117 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
6118 | if (mg && mg->mg_ptr) { | |
6119 | cache = (STRLEN *) mg->mg_ptr; | |
c5661c80 | 6120 | if (cache[1] == (STRLEN)*offsetp) { |
7e8c5dac HS |
6121 | /* An exact match. */ |
6122 | *offsetp = cache[0]; | |
6123 | ||
6124 | return; | |
6125 | } | |
c5661c80 | 6126 | else if (cache[1] < (STRLEN)*offsetp) { |
7e8c5dac HS |
6127 | /* We already know part of the way. */ |
6128 | len = cache[0]; | |
6129 | s += cache[1]; | |
7a5fa8a2 | 6130 | /* Let the below loop do the rest. */ |
7e8c5dac HS |
6131 | } |
6132 | else { /* cache[1] > *offsetp */ | |
6133 | /* We already know all of the way, now we may | |
6134 | * be able to walk back. The same assumption | |
6135 | * is made as in S_utf8_mg_pos(), namely that | |
6136 | * walking backward is twice slower than | |
6137 | * walking forward. */ | |
9d4ba2ae | 6138 | const STRLEN forw = *offsetp; |
7e8c5dac HS |
6139 | STRLEN backw = cache[1] - *offsetp; |
6140 | ||
6141 | if (!(forw < 2 * backw)) { | |
83003860 | 6142 | const U8 *p = s + cache[1]; |
7e8c5dac | 6143 | STRLEN ubackw = 0; |
7a5fa8a2 | 6144 | |
a5b510f2 AE |
6145 | cache[1] -= backw; |
6146 | ||
7e8c5dac HS |
6147 | while (backw--) { |
6148 | p--; | |
0aeb64d0 | 6149 | while (UTF8_IS_CONTINUATION(*p)) { |
7e8c5dac | 6150 | p--; |
0aeb64d0 JH |
6151 | backw--; |
6152 | } | |
7e8c5dac HS |
6153 | ubackw++; |
6154 | } | |
6155 | ||
6156 | cache[0] -= ubackw; | |
0aeb64d0 | 6157 | *offsetp = cache[0]; |
a67d7df9 TS |
6158 | |
6159 | /* Drop the stale "length" cache */ | |
6160 | cache[2] = 0; | |
6161 | cache[3] = 0; | |
6162 | ||
0aeb64d0 | 6163 | return; |
7e8c5dac HS |
6164 | } |
6165 | } | |
6166 | } | |
e23c8137 | 6167 | ASSERT_UTF8_CACHE(cache); |
a0dbb045 | 6168 | } |
7e8c5dac HS |
6169 | |
6170 | while (s < send) { | |
6171 | STRLEN n = 1; | |
6172 | ||
6173 | /* Call utf8n_to_uvchr() to validate the sequence | |
6174 | * (unless a simple non-UTF character) */ | |
6175 | if (!UTF8_IS_INVARIANT(*s)) | |
6176 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
6177 | if (n > 0) { | |
6178 | s += n; | |
6179 | len++; | |
6180 | } | |
6181 | else | |
6182 | break; | |
6183 | } | |
6184 | ||
6185 | if (!SvREADONLY(sv)) { | |
6186 | if (!mg) { | |
6187 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
6188 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
6189 | } | |
6190 | assert(mg); | |
6191 | ||
6192 | if (!mg->mg_ptr) { | |
a02a5408 | 6193 | Newxz(cache, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); |
7e8c5dac HS |
6194 | mg->mg_ptr = (char *) cache; |
6195 | } | |
6196 | assert(cache); | |
6197 | ||
6198 | cache[0] = len; | |
6199 | cache[1] = *offsetp; | |
a67d7df9 TS |
6200 | /* Drop the stale "length" cache */ |
6201 | cache[2] = 0; | |
6202 | cache[3] = 0; | |
7e8c5dac HS |
6203 | } |
6204 | ||
6205 | *offsetp = len; | |
a0ed51b3 | 6206 | } |
a0ed51b3 LW |
6207 | return; |
6208 | } | |
6209 | ||
954c1994 GS |
6210 | /* |
6211 | =for apidoc sv_eq | |
6212 | ||
6213 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
6214 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
6215 | coerce its args to strings if necessary. | |
954c1994 GS |
6216 | |
6217 | =cut | |
6218 | */ | |
6219 | ||
79072805 | 6220 | I32 |
e01b9e88 | 6221 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 6222 | { |
e1ec3a88 | 6223 | const char *pv1; |
463ee0b2 | 6224 | STRLEN cur1; |
e1ec3a88 | 6225 | const char *pv2; |
463ee0b2 | 6226 | STRLEN cur2; |
e01b9e88 | 6227 | I32 eq = 0; |
553e1bcc AT |
6228 | char *tpv = Nullch; |
6229 | SV* svrecode = Nullsv; | |
79072805 | 6230 | |
e01b9e88 | 6231 | if (!sv1) { |
79072805 LW |
6232 | pv1 = ""; |
6233 | cur1 = 0; | |
6234 | } | |
463ee0b2 | 6235 | else |
4d84ee25 | 6236 | pv1 = SvPV_const(sv1, cur1); |
79072805 | 6237 | |
e01b9e88 SC |
6238 | if (!sv2){ |
6239 | pv2 = ""; | |
6240 | cur2 = 0; | |
92d29cee | 6241 | } |
e01b9e88 | 6242 | else |
4d84ee25 | 6243 | pv2 = SvPV_const(sv2, cur2); |
79072805 | 6244 | |
cf48d248 | 6245 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
6246 | /* Differing utf8ness. |
6247 | * Do not UTF8size the comparands as a side-effect. */ | |
6248 | if (PL_encoding) { | |
6249 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
6250 | svrecode = newSVpvn(pv2, cur2); |
6251 | sv_recode_to_utf8(svrecode, PL_encoding); | |
93524f2b | 6252 | pv2 = SvPV_const(svrecode, cur2); |
799ef3cb JH |
6253 | } |
6254 | else { | |
553e1bcc AT |
6255 | svrecode = newSVpvn(pv1, cur1); |
6256 | sv_recode_to_utf8(svrecode, PL_encoding); | |
93524f2b | 6257 | pv1 = SvPV_const(svrecode, cur1); |
799ef3cb JH |
6258 | } |
6259 | /* Now both are in UTF-8. */ | |
0a1bd7ac DM |
6260 | if (cur1 != cur2) { |
6261 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6262 | return FALSE; |
0a1bd7ac | 6263 | } |
799ef3cb JH |
6264 | } |
6265 | else { | |
6266 | bool is_utf8 = TRUE; | |
6267 | ||
6268 | if (SvUTF8(sv1)) { | |
6269 | /* sv1 is the UTF-8 one, | |
6270 | * if is equal it must be downgrade-able */ | |
9d4ba2ae | 6271 | char * const pv = (char*)bytes_from_utf8((const U8*)pv1, |
799ef3cb JH |
6272 | &cur1, &is_utf8); |
6273 | if (pv != pv1) | |
553e1bcc | 6274 | pv1 = tpv = pv; |
799ef3cb JH |
6275 | } |
6276 | else { | |
6277 | /* sv2 is the UTF-8 one, | |
6278 | * if is equal it must be downgrade-able */ | |
9d4ba2ae | 6279 | char * const pv = (char *)bytes_from_utf8((const U8*)pv2, |
799ef3cb JH |
6280 | &cur2, &is_utf8); |
6281 | if (pv != pv2) | |
553e1bcc | 6282 | pv2 = tpv = pv; |
799ef3cb JH |
6283 | } |
6284 | if (is_utf8) { | |
6285 | /* Downgrade not possible - cannot be eq */ | |
bf694877 | 6286 | assert (tpv == 0); |
799ef3cb JH |
6287 | return FALSE; |
6288 | } | |
6289 | } | |
cf48d248 JH |
6290 | } |
6291 | ||
6292 | if (cur1 == cur2) | |
765f542d | 6293 | eq = (pv1 == pv2) || memEQ(pv1, pv2, cur1); |
e01b9e88 | 6294 | |
553e1bcc AT |
6295 | if (svrecode) |
6296 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6297 | |
553e1bcc AT |
6298 | if (tpv) |
6299 | Safefree(tpv); | |
cf48d248 | 6300 | |
e01b9e88 | 6301 | return eq; |
79072805 LW |
6302 | } |
6303 | ||
954c1994 GS |
6304 | /* |
6305 | =for apidoc sv_cmp | |
6306 | ||
6307 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
6308 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
6309 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
6310 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
6311 | |
6312 | =cut | |
6313 | */ | |
6314 | ||
79072805 | 6315 | I32 |
e01b9e88 | 6316 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 6317 | { |
560a288e | 6318 | STRLEN cur1, cur2; |
e1ec3a88 AL |
6319 | const char *pv1, *pv2; |
6320 | char *tpv = Nullch; | |
cf48d248 | 6321 | I32 cmp; |
553e1bcc | 6322 | SV *svrecode = Nullsv; |
560a288e | 6323 | |
e01b9e88 SC |
6324 | if (!sv1) { |
6325 | pv1 = ""; | |
560a288e GS |
6326 | cur1 = 0; |
6327 | } | |
e01b9e88 | 6328 | else |
4d84ee25 | 6329 | pv1 = SvPV_const(sv1, cur1); |
560a288e | 6330 | |
553e1bcc | 6331 | if (!sv2) { |
e01b9e88 | 6332 | pv2 = ""; |
560a288e GS |
6333 | cur2 = 0; |
6334 | } | |
e01b9e88 | 6335 | else |
4d84ee25 | 6336 | pv2 = SvPV_const(sv2, cur2); |
79072805 | 6337 | |
cf48d248 | 6338 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
6339 | /* Differing utf8ness. |
6340 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 6341 | if (SvUTF8(sv1)) { |
799ef3cb | 6342 | if (PL_encoding) { |
553e1bcc AT |
6343 | svrecode = newSVpvn(pv2, cur2); |
6344 | sv_recode_to_utf8(svrecode, PL_encoding); | |
93524f2b | 6345 | pv2 = SvPV_const(svrecode, cur2); |
799ef3cb JH |
6346 | } |
6347 | else { | |
e1ec3a88 | 6348 | pv2 = tpv = (char*)bytes_to_utf8((const U8*)pv2, &cur2); |
799ef3cb | 6349 | } |
cf48d248 JH |
6350 | } |
6351 | else { | |
799ef3cb | 6352 | if (PL_encoding) { |
553e1bcc AT |
6353 | svrecode = newSVpvn(pv1, cur1); |
6354 | sv_recode_to_utf8(svrecode, PL_encoding); | |
93524f2b | 6355 | pv1 = SvPV_const(svrecode, cur1); |
799ef3cb JH |
6356 | } |
6357 | else { | |
e1ec3a88 | 6358 | pv1 = tpv = (char*)bytes_to_utf8((const U8*)pv1, &cur1); |
799ef3cb | 6359 | } |
cf48d248 JH |
6360 | } |
6361 | } | |
6362 | ||
e01b9e88 | 6363 | if (!cur1) { |
cf48d248 | 6364 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 6365 | } else if (!cur2) { |
cf48d248 JH |
6366 | cmp = 1; |
6367 | } else { | |
e1ec3a88 | 6368 | const I32 retval = memcmp((const void*)pv1, (const void*)pv2, cur1 < cur2 ? cur1 : cur2); |
e01b9e88 SC |
6369 | |
6370 | if (retval) { | |
cf48d248 | 6371 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 6372 | } else if (cur1 == cur2) { |
cf48d248 JH |
6373 | cmp = 0; |
6374 | } else { | |
6375 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 6376 | } |
cf48d248 | 6377 | } |
16660edb | 6378 | |
553e1bcc AT |
6379 | if (svrecode) |
6380 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6381 | |
553e1bcc AT |
6382 | if (tpv) |
6383 | Safefree(tpv); | |
cf48d248 JH |
6384 | |
6385 | return cmp; | |
bbce6d69 | 6386 | } |
16660edb | 6387 | |
c461cf8f JH |
6388 | /* |
6389 | =for apidoc sv_cmp_locale | |
6390 | ||
645c22ef DM |
6391 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
6392 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
6393 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
6394 | |
6395 | =cut | |
6396 | */ | |
6397 | ||
bbce6d69 | 6398 | I32 |
864dbfa3 | 6399 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 6400 | { |
36477c24 | 6401 | #ifdef USE_LOCALE_COLLATE |
16660edb | 6402 | |
bbce6d69 | 6403 | char *pv1, *pv2; |
6404 | STRLEN len1, len2; | |
6405 | I32 retval; | |
16660edb | 6406 | |
3280af22 | 6407 | if (PL_collation_standard) |
bbce6d69 | 6408 | goto raw_compare; |
16660edb | 6409 | |
bbce6d69 | 6410 | len1 = 0; |
8ac85365 | 6411 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 6412 | len2 = 0; |
8ac85365 | 6413 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 6414 | |
bbce6d69 | 6415 | if (!pv1 || !len1) { |
6416 | if (pv2 && len2) | |
6417 | return -1; | |
6418 | else | |
6419 | goto raw_compare; | |
6420 | } | |
6421 | else { | |
6422 | if (!pv2 || !len2) | |
6423 | return 1; | |
6424 | } | |
16660edb | 6425 | |
bbce6d69 | 6426 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 6427 | |
bbce6d69 | 6428 | if (retval) |
16660edb | 6429 | return retval < 0 ? -1 : 1; |
6430 | ||
bbce6d69 | 6431 | /* |
6432 | * When the result of collation is equality, that doesn't mean | |
6433 | * that there are no differences -- some locales exclude some | |
6434 | * characters from consideration. So to avoid false equalities, | |
6435 | * we use the raw string as a tiebreaker. | |
6436 | */ | |
16660edb | 6437 | |
bbce6d69 | 6438 | raw_compare: |
6439 | /* FALL THROUGH */ | |
16660edb | 6440 | |
36477c24 | 6441 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 6442 | |
bbce6d69 | 6443 | return sv_cmp(sv1, sv2); |
6444 | } | |
79072805 | 6445 | |
645c22ef | 6446 | |
36477c24 | 6447 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 6448 | |
7a4c00b4 | 6449 | /* |
645c22ef DM |
6450 | =for apidoc sv_collxfrm |
6451 | ||
6452 | Add Collate Transform magic to an SV if it doesn't already have it. | |
6453 | ||
6454 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
6455 | scalar data of the variable, but transformed to such a format that a normal | |
6456 | memory comparison can be used to compare the data according to the locale | |
6457 | settings. | |
6458 | ||
6459 | =cut | |
6460 | */ | |
6461 | ||
bbce6d69 | 6462 | char * |
864dbfa3 | 6463 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 6464 | { |
7a4c00b4 | 6465 | MAGIC *mg; |
16660edb | 6466 | |
14befaf4 | 6467 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 6468 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
93524f2b NC |
6469 | const char *s; |
6470 | char *xf; | |
bbce6d69 | 6471 | STRLEN len, xlen; |
6472 | ||
7a4c00b4 | 6473 | if (mg) |
6474 | Safefree(mg->mg_ptr); | |
93524f2b | 6475 | s = SvPV_const(sv, len); |
bbce6d69 | 6476 | if ((xf = mem_collxfrm(s, len, &xlen))) { |
ff0cee69 | 6477 | if (SvREADONLY(sv)) { |
6478 | SAVEFREEPV(xf); | |
6479 | *nxp = xlen; | |
3280af22 | 6480 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 6481 | } |
7a4c00b4 | 6482 | if (! mg) { |
14befaf4 DM |
6483 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
6484 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 6485 | assert(mg); |
bbce6d69 | 6486 | } |
7a4c00b4 | 6487 | mg->mg_ptr = xf; |
565764a8 | 6488 | mg->mg_len = xlen; |
7a4c00b4 | 6489 | } |
6490 | else { | |
ff0cee69 | 6491 | if (mg) { |
6492 | mg->mg_ptr = NULL; | |
565764a8 | 6493 | mg->mg_len = -1; |
ff0cee69 | 6494 | } |
bbce6d69 | 6495 | } |
6496 | } | |
7a4c00b4 | 6497 | if (mg && mg->mg_ptr) { |
565764a8 | 6498 | *nxp = mg->mg_len; |
3280af22 | 6499 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 6500 | } |
6501 | else { | |
6502 | *nxp = 0; | |
6503 | return NULL; | |
16660edb | 6504 | } |
79072805 LW |
6505 | } |
6506 | ||
36477c24 | 6507 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 6508 | |
c461cf8f JH |
6509 | /* |
6510 | =for apidoc sv_gets | |
6511 | ||
6512 | Get a line from the filehandle and store it into the SV, optionally | |
6513 | appending to the currently-stored string. | |
6514 | ||
6515 | =cut | |
6516 | */ | |
6517 | ||
79072805 | 6518 | char * |
864dbfa3 | 6519 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 6520 | { |
e1ec3a88 | 6521 | const char *rsptr; |
c07a80fd | 6522 | STRLEN rslen; |
6523 | register STDCHAR rslast; | |
6524 | register STDCHAR *bp; | |
6525 | register I32 cnt; | |
9c5ffd7c | 6526 | I32 i = 0; |
8bfdd7d9 | 6527 | I32 rspara = 0; |
e311fd51 | 6528 | I32 recsize; |
c07a80fd | 6529 | |
bc44a8a2 NC |
6530 | if (SvTHINKFIRST(sv)) |
6531 | sv_force_normal_flags(sv, append ? 0 : SV_COW_DROP_PV); | |
765f542d NC |
6532 | /* XXX. If you make this PVIV, then copy on write can copy scalars read |
6533 | from <>. | |
6534 | However, perlbench says it's slower, because the existing swipe code | |
6535 | is faster than copy on write. | |
6536 | Swings and roundabouts. */ | |
862a34c6 | 6537 | SvUPGRADE(sv, SVt_PV); |
99491443 | 6538 | |
ff68c719 | 6539 | SvSCREAM_off(sv); |
efd8b2ba AE |
6540 | |
6541 | if (append) { | |
6542 | if (PerlIO_isutf8(fp)) { | |
6543 | if (!SvUTF8(sv)) { | |
6544 | sv_utf8_upgrade_nomg(sv); | |
6545 | sv_pos_u2b(sv,&append,0); | |
6546 | } | |
6547 | } else if (SvUTF8(sv)) { | |
1b6737cc | 6548 | SV * const tsv = NEWSV(0,0); |
efd8b2ba AE |
6549 | sv_gets(tsv, fp, 0); |
6550 | sv_utf8_upgrade_nomg(tsv); | |
6551 | SvCUR_set(sv,append); | |
6552 | sv_catsv(sv,tsv); | |
6553 | sv_free(tsv); | |
6554 | goto return_string_or_null; | |
6555 | } | |
6556 | } | |
6557 | ||
6558 | SvPOK_only(sv); | |
6559 | if (PerlIO_isutf8(fp)) | |
6560 | SvUTF8_on(sv); | |
c07a80fd | 6561 | |
923e4eb5 | 6562 | if (IN_PERL_COMPILETIME) { |
8bfdd7d9 HS |
6563 | /* we always read code in line mode */ |
6564 | rsptr = "\n"; | |
6565 | rslen = 1; | |
6566 | } | |
6567 | else if (RsSNARF(PL_rs)) { | |
7a5fa8a2 NIS |
6568 | /* If it is a regular disk file use size from stat() as estimate |
6569 | of amount we are going to read - may result in malloc-ing | |
6570 | more memory than we realy need if layers bellow reduce | |
e468d35b NIS |
6571 | size we read (e.g. CRLF or a gzip layer) |
6572 | */ | |
e311fd51 | 6573 | Stat_t st; |
e468d35b | 6574 | if (!PerlLIO_fstat(PerlIO_fileno(fp), &st) && S_ISREG(st.st_mode)) { |
f54cb97a | 6575 | const Off_t offset = PerlIO_tell(fp); |
58f1856e | 6576 | if (offset != (Off_t) -1 && st.st_size + append > offset) { |
e468d35b NIS |
6577 | (void) SvGROW(sv, (STRLEN)((st.st_size - offset) + append + 1)); |
6578 | } | |
6579 | } | |
c07a80fd | 6580 | rsptr = NULL; |
6581 | rslen = 0; | |
6582 | } | |
3280af22 | 6583 | else if (RsRECORD(PL_rs)) { |
e311fd51 | 6584 | I32 bytesread; |
5b2b9c68 HM |
6585 | char *buffer; |
6586 | ||
6587 | /* Grab the size of the record we're getting */ | |
3280af22 | 6588 | recsize = SvIV(SvRV(PL_rs)); |
e311fd51 | 6589 | buffer = SvGROW(sv, (STRLEN)(recsize + append + 1)) + append; |
5b2b9c68 HM |
6590 | /* Go yank in */ |
6591 | #ifdef VMS | |
6592 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
6593 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
e468d35b NIS |
6594 | /* doing, but we've got no other real choice - except avoid stdio |
6595 | as implementation - perhaps write a :vms layer ? | |
6596 | */ | |
5b2b9c68 HM |
6597 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); |
6598 | #else | |
6599 | bytesread = PerlIO_read(fp, buffer, recsize); | |
6600 | #endif | |
27e6ca2d AE |
6601 | if (bytesread < 0) |
6602 | bytesread = 0; | |
e311fd51 | 6603 | SvCUR_set(sv, bytesread += append); |
e670df4e | 6604 | buffer[bytesread] = '\0'; |
efd8b2ba | 6605 | goto return_string_or_null; |
5b2b9c68 | 6606 | } |
3280af22 | 6607 | else if (RsPARA(PL_rs)) { |
c07a80fd | 6608 | rsptr = "\n\n"; |
6609 | rslen = 2; | |
8bfdd7d9 | 6610 | rspara = 1; |
c07a80fd | 6611 | } |
7d59b7e4 NIS |
6612 | else { |
6613 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
6614 | if (PerlIO_isutf8(fp)) { | |
6615 | rsptr = SvPVutf8(PL_rs, rslen); | |
6616 | } | |
6617 | else { | |
6618 | if (SvUTF8(PL_rs)) { | |
6619 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
6620 | Perl_croak(aTHX_ "Wide character in $/"); | |
6621 | } | |
6622 | } | |
93524f2b | 6623 | rsptr = SvPV_const(PL_rs, rslen); |
7d59b7e4 NIS |
6624 | } |
6625 | } | |
6626 | ||
c07a80fd | 6627 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
6628 | ||
8bfdd7d9 | 6629 | if (rspara) { /* have to do this both before and after */ |
79072805 | 6630 | do { /* to make sure file boundaries work right */ |
760ac839 | 6631 | if (PerlIO_eof(fp)) |
a0d0e21e | 6632 | return 0; |
760ac839 | 6633 | i = PerlIO_getc(fp); |
79072805 | 6634 | if (i != '\n') { |
a0d0e21e LW |
6635 | if (i == -1) |
6636 | return 0; | |
760ac839 | 6637 | PerlIO_ungetc(fp,i); |
79072805 LW |
6638 | break; |
6639 | } | |
6640 | } while (i != EOF); | |
6641 | } | |
c07a80fd | 6642 | |
760ac839 LW |
6643 | /* See if we know enough about I/O mechanism to cheat it ! */ |
6644 | ||
6645 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 6646 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
6647 | enough here - and may even be a macro allowing compile |
6648 | time optimization. | |
6649 | */ | |
6650 | ||
6651 | if (PerlIO_fast_gets(fp)) { | |
6652 | ||
6653 | /* | |
6654 | * We're going to steal some values from the stdio struct | |
6655 | * and put EVERYTHING in the innermost loop into registers. | |
6656 | */ | |
6657 | register STDCHAR *ptr; | |
6658 | STRLEN bpx; | |
6659 | I32 shortbuffered; | |
6660 | ||
16660edb | 6661 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
6662 | /* An ungetc()d char is handled separately from the regular | |
6663 | * buffer, so we getc() it back out and stuff it in the buffer. | |
6664 | */ | |
6665 | i = PerlIO_getc(fp); | |
6666 | if (i == EOF) return 0; | |
6667 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
6668 | (*fp)->_cnt++; | |
6669 | #endif | |
c07a80fd | 6670 | |
c2960299 | 6671 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 6672 | |
a20bf0c3 | 6673 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
e468d35b | 6674 | /* make sure we have the room */ |
7a5fa8a2 | 6675 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { |
e468d35b | 6676 | /* Not room for all of it |
7a5fa8a2 | 6677 | if we are looking for a separator and room for some |
e468d35b NIS |
6678 | */ |
6679 | if (rslen && cnt > 80 && (I32)SvLEN(sv) > append) { | |
7a5fa8a2 | 6680 | /* just process what we have room for */ |
79072805 LW |
6681 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
6682 | cnt -= shortbuffered; | |
6683 | } | |
6684 | else { | |
6685 | shortbuffered = 0; | |
bbce6d69 | 6686 | /* remember that cnt can be negative */ |
eb160463 | 6687 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
6688 | } |
6689 | } | |
7a5fa8a2 | 6690 | else |
79072805 | 6691 | shortbuffered = 0; |
3f7c398e | 6692 | bp = (STDCHAR*)SvPVX_const(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 6693 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 6694 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6695 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 6696 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 6697 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6698 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6699 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
6700 | for (;;) { |
6701 | screamer: | |
93a17b20 | 6702 | if (cnt > 0) { |
c07a80fd | 6703 | if (rslen) { |
760ac839 LW |
6704 | while (cnt > 0) { /* this | eat */ |
6705 | cnt--; | |
c07a80fd | 6706 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
6707 | goto thats_all_folks; /* screams | sed :-) */ | |
6708 | } | |
6709 | } | |
6710 | else { | |
1c846c1f NIS |
6711 | Copy(ptr, bp, cnt, char); /* this | eat */ |
6712 | bp += cnt; /* screams | dust */ | |
c07a80fd | 6713 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 6714 | cnt = 0; |
93a17b20 | 6715 | } |
79072805 LW |
6716 | } |
6717 | ||
748a9306 | 6718 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
6719 | cnt = shortbuffered; |
6720 | shortbuffered = 0; | |
3f7c398e | 6721 | bpx = bp - (STDCHAR*)SvPVX_const(sv); /* box up before relocation */ |
79072805 LW |
6722 | SvCUR_set(sv, bpx); |
6723 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
3f7c398e | 6724 | bp = (STDCHAR*)SvPVX_const(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
6725 | continue; |
6726 | } | |
6727 | ||
16660edb | 6728 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
6729 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
6730 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 6731 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 6732 | #if 0 |
16660edb | 6733 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6734 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6735 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6736 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6737 | #endif |
1c846c1f | 6738 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 6739 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
6740 | another abstraction. */ | |
760ac839 | 6741 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 6742 | #if 0 |
16660edb | 6743 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6744 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6745 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6746 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 6747 | #endif |
a20bf0c3 JH |
6748 | cnt = PerlIO_get_cnt(fp); |
6749 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 6750 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6751 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 6752 | |
748a9306 LW |
6753 | if (i == EOF) /* all done for ever? */ |
6754 | goto thats_really_all_folks; | |
6755 | ||
3f7c398e | 6756 | bpx = bp - (STDCHAR*)SvPVX_const(sv); /* box up before relocation */ |
79072805 LW |
6757 | SvCUR_set(sv, bpx); |
6758 | SvGROW(sv, bpx + cnt + 2); | |
3f7c398e | 6759 | bp = (STDCHAR*)SvPVX_const(sv) + bpx; /* unbox after relocation */ |
c07a80fd | 6760 | |
eb160463 | 6761 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 6762 | |
c07a80fd | 6763 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 6764 | goto thats_all_folks; |
79072805 LW |
6765 | } |
6766 | ||
6767 | thats_all_folks: | |
3f7c398e | 6768 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX_const(sv)) < rslen) || |
36477c24 | 6769 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 6770 | goto screamer; /* go back to the fray */ |
79072805 LW |
6771 | thats_really_all_folks: |
6772 | if (shortbuffered) | |
6773 | cnt += shortbuffered; | |
16660edb | 6774 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6775 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 6776 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 6777 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 6778 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 6779 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 6780 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 6781 | *bp = '\0'; |
3f7c398e | 6782 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX_const(sv)); /* set length */ |
16660edb | 6783 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 6784 | "Screamer: done, len=%ld, string=|%.*s|\n", |
3f7c398e | 6785 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX_const(sv))); |
760ac839 LW |
6786 | } |
6787 | else | |
79072805 | 6788 | { |
6edd2cd5 | 6789 | /*The big, slow, and stupid way. */ |
27da23d5 | 6790 | #ifdef USE_HEAP_INSTEAD_OF_STACK /* Even slower way. */ |
6edd2cd5 | 6791 | STDCHAR *buf = 0; |
a02a5408 | 6792 | Newx(buf, 8192, STDCHAR); |
6edd2cd5 | 6793 | assert(buf); |
4d2c4e07 | 6794 | #else |
6edd2cd5 | 6795 | STDCHAR buf[8192]; |
4d2c4e07 | 6796 | #endif |
79072805 | 6797 | |
760ac839 | 6798 | screamer2: |
c07a80fd | 6799 | if (rslen) { |
6867be6d | 6800 | const register STDCHAR *bpe = buf + sizeof(buf); |
760ac839 | 6801 | bp = buf; |
eb160463 | 6802 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
6803 | ; /* keep reading */ |
6804 | cnt = bp - buf; | |
c07a80fd | 6805 | } |
6806 | else { | |
760ac839 | 6807 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 6808 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
6809 | * both args of ?: operator, causing EOF to change into 255 | |
6810 | */ | |
37be0adf | 6811 | if (cnt > 0) |
cbe9e203 JH |
6812 | i = (U8)buf[cnt - 1]; |
6813 | else | |
37be0adf | 6814 | i = EOF; |
c07a80fd | 6815 | } |
79072805 | 6816 | |
cbe9e203 JH |
6817 | if (cnt < 0) |
6818 | cnt = 0; /* we do need to re-set the sv even when cnt <= 0 */ | |
6819 | if (append) | |
6820 | sv_catpvn(sv, (char *) buf, cnt); | |
6821 | else | |
6822 | sv_setpvn(sv, (char *) buf, cnt); | |
c07a80fd | 6823 | |
6824 | if (i != EOF && /* joy */ | |
6825 | (!rslen || | |
6826 | SvCUR(sv) < rslen || | |
3f7c398e | 6827 | memNE(SvPVX_const(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
6828 | { |
6829 | append = -1; | |
63e4d877 CS |
6830 | /* |
6831 | * If we're reading from a TTY and we get a short read, | |
6832 | * indicating that the user hit his EOF character, we need | |
6833 | * to notice it now, because if we try to read from the TTY | |
6834 | * again, the EOF condition will disappear. | |
6835 | * | |
6836 | * The comparison of cnt to sizeof(buf) is an optimization | |
6837 | * that prevents unnecessary calls to feof(). | |
6838 | * | |
6839 | * - jik 9/25/96 | |
6840 | */ | |
6841 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
6842 | goto screamer2; | |
79072805 | 6843 | } |
6edd2cd5 | 6844 | |
27da23d5 | 6845 | #ifdef USE_HEAP_INSTEAD_OF_STACK |
6edd2cd5 JH |
6846 | Safefree(buf); |
6847 | #endif | |
79072805 LW |
6848 | } |
6849 | ||
8bfdd7d9 | 6850 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 6851 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 6852 | i = PerlIO_getc(fp); |
79072805 | 6853 | if (i != '\n') { |
760ac839 | 6854 | PerlIO_ungetc(fp,i); |
79072805 LW |
6855 | break; |
6856 | } | |
6857 | } | |
6858 | } | |
c07a80fd | 6859 | |
efd8b2ba | 6860 | return_string_or_null: |
c07a80fd | 6861 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
6862 | } |
6863 | ||
954c1994 GS |
6864 | /* |
6865 | =for apidoc sv_inc | |
6866 | ||
645c22ef DM |
6867 | Auto-increment of the value in the SV, doing string to numeric conversion |
6868 | if necessary. Handles 'get' magic. | |
954c1994 GS |
6869 | |
6870 | =cut | |
6871 | */ | |
6872 | ||
79072805 | 6873 | void |
864dbfa3 | 6874 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
6875 | { |
6876 | register char *d; | |
463ee0b2 | 6877 | int flags; |
79072805 LW |
6878 | |
6879 | if (!sv) | |
6880 | return; | |
5b295bef | 6881 | SvGETMAGIC(sv); |
ed6116ce | 6882 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
6883 | if (SvIsCOW(sv)) |
6884 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 6885 | if (SvREADONLY(sv)) { |
923e4eb5 | 6886 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 6887 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 6888 | } |
a0d0e21e | 6889 | if (SvROK(sv)) { |
b5be31e9 | 6890 | IV i; |
9e7bc3e8 JD |
6891 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
6892 | return; | |
56431972 | 6893 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
6894 | sv_unref(sv); |
6895 | sv_setiv(sv, i); | |
a0d0e21e | 6896 | } |
ed6116ce | 6897 | } |
8990e307 | 6898 | flags = SvFLAGS(sv); |
28e5dec8 JH |
6899 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
6900 | /* It's (privately or publicly) a float, but not tested as an | |
6901 | integer, so test it to see. */ | |
d460ef45 | 6902 | (void) SvIV(sv); |
28e5dec8 JH |
6903 | flags = SvFLAGS(sv); |
6904 | } | |
6905 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
6906 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 6907 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 6908 | oops_its_int: |
59d8ce62 | 6909 | #endif |
25da4f38 IZ |
6910 | if (SvIsUV(sv)) { |
6911 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 6912 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
6913 | else |
6914 | (void)SvIOK_only_UV(sv); | |
607fa7f2 | 6915 | SvUV_set(sv, SvUVX(sv) + 1); |
25da4f38 IZ |
6916 | } else { |
6917 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 6918 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
6919 | else { |
6920 | (void)SvIOK_only(sv); | |
45977657 | 6921 | SvIV_set(sv, SvIVX(sv) + 1); |
1c846c1f | 6922 | } |
55497cff | 6923 | } |
79072805 LW |
6924 | return; |
6925 | } | |
28e5dec8 JH |
6926 | if (flags & SVp_NOK) { |
6927 | (void)SvNOK_only(sv); | |
9d6ce603 | 6928 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
6929 | return; |
6930 | } | |
6931 | ||
3f7c398e | 6932 | if (!(flags & SVp_POK) || !*SvPVX_const(sv)) { |
28e5dec8 | 6933 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
f5282e15 | 6934 | sv_upgrade(sv, ((flags & SVTYPEMASK) > SVt_IV ? SVt_PVIV : SVt_IV)); |
28e5dec8 | 6935 | (void)SvIOK_only(sv); |
45977657 | 6936 | SvIV_set(sv, 1); |
79072805 LW |
6937 | return; |
6938 | } | |
463ee0b2 | 6939 | d = SvPVX(sv); |
79072805 LW |
6940 | while (isALPHA(*d)) d++; |
6941 | while (isDIGIT(*d)) d++; | |
6942 | if (*d) { | |
28e5dec8 | 6943 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 6944 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
6945 | warnings. Probably ought to make the sv_iv_please() that does |
6946 | the conversion if possible, and silently. */ | |
504618e9 | 6947 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
6948 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
6949 | /* Need to try really hard to see if it's an integer. | |
6950 | 9.22337203685478e+18 is an integer. | |
6951 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
6952 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
6953 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
6954 | or we go insane. */ | |
d460ef45 | 6955 | |
28e5dec8 JH |
6956 | (void) sv_2iv(sv); |
6957 | if (SvIOK(sv)) | |
6958 | goto oops_its_int; | |
6959 | ||
6960 | /* sv_2iv *should* have made this an NV */ | |
6961 | if (flags & SVp_NOK) { | |
6962 | (void)SvNOK_only(sv); | |
9d6ce603 | 6963 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
6964 | return; |
6965 | } | |
6966 | /* I don't think we can get here. Maybe I should assert this | |
6967 | And if we do get here I suspect that sv_setnv will croak. NWC | |
6968 | Fall through. */ | |
6969 | #if defined(USE_LONG_DOUBLE) | |
6970 | 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", | |
3f7c398e | 6971 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 | 6972 | #else |
1779d84d | 6973 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
3f7c398e | 6974 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 JH |
6975 | #endif |
6976 | } | |
6977 | #endif /* PERL_PRESERVE_IVUV */ | |
3f7c398e | 6978 | sv_setnv(sv,Atof(SvPVX_const(sv)) + 1.0); |
79072805 LW |
6979 | return; |
6980 | } | |
6981 | d--; | |
3f7c398e | 6982 | while (d >= SvPVX_const(sv)) { |
79072805 LW |
6983 | if (isDIGIT(*d)) { |
6984 | if (++*d <= '9') | |
6985 | return; | |
6986 | *(d--) = '0'; | |
6987 | } | |
6988 | else { | |
9d116dd7 JH |
6989 | #ifdef EBCDIC |
6990 | /* MKS: The original code here died if letters weren't consecutive. | |
6991 | * at least it didn't have to worry about non-C locales. The | |
6992 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 6993 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
6994 | * [A-Za-z] are accepted by isALPHA in the C locale. |
6995 | */ | |
6996 | if (*d != 'z' && *d != 'Z') { | |
6997 | do { ++*d; } while (!isALPHA(*d)); | |
6998 | return; | |
6999 | } | |
7000 | *(d--) -= 'z' - 'a'; | |
7001 | #else | |
79072805 LW |
7002 | ++*d; |
7003 | if (isALPHA(*d)) | |
7004 | return; | |
7005 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 7006 | #endif |
79072805 LW |
7007 | } |
7008 | } | |
7009 | /* oh,oh, the number grew */ | |
7010 | SvGROW(sv, SvCUR(sv) + 2); | |
b162af07 | 7011 | SvCUR_set(sv, SvCUR(sv) + 1); |
3f7c398e | 7012 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX_const(sv); d--) |
79072805 LW |
7013 | *d = d[-1]; |
7014 | if (isDIGIT(d[1])) | |
7015 | *d = '1'; | |
7016 | else | |
7017 | *d = d[1]; | |
7018 | } | |
7019 | ||
954c1994 GS |
7020 | /* |
7021 | =for apidoc sv_dec | |
7022 | ||
645c22ef DM |
7023 | Auto-decrement of the value in the SV, doing string to numeric conversion |
7024 | if necessary. Handles 'get' magic. | |
954c1994 GS |
7025 | |
7026 | =cut | |
7027 | */ | |
7028 | ||
79072805 | 7029 | void |
864dbfa3 | 7030 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 7031 | { |
463ee0b2 LW |
7032 | int flags; |
7033 | ||
79072805 LW |
7034 | if (!sv) |
7035 | return; | |
5b295bef | 7036 | SvGETMAGIC(sv); |
ed6116ce | 7037 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
7038 | if (SvIsCOW(sv)) |
7039 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 7040 | if (SvREADONLY(sv)) { |
923e4eb5 | 7041 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 7042 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 7043 | } |
a0d0e21e | 7044 | if (SvROK(sv)) { |
b5be31e9 | 7045 | IV i; |
9e7bc3e8 JD |
7046 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
7047 | return; | |
56431972 | 7048 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
7049 | sv_unref(sv); |
7050 | sv_setiv(sv, i); | |
a0d0e21e | 7051 | } |
ed6116ce | 7052 | } |
28e5dec8 JH |
7053 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
7054 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 7055 | flags = SvFLAGS(sv); |
28e5dec8 JH |
7056 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
7057 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 7058 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 7059 | oops_its_int: |
59d8ce62 | 7060 | #endif |
25da4f38 IZ |
7061 | if (SvIsUV(sv)) { |
7062 | if (SvUVX(sv) == 0) { | |
7063 | (void)SvIOK_only(sv); | |
45977657 | 7064 | SvIV_set(sv, -1); |
25da4f38 IZ |
7065 | } |
7066 | else { | |
7067 | (void)SvIOK_only_UV(sv); | |
f4eee32f | 7068 | SvUV_set(sv, SvUVX(sv) - 1); |
1c846c1f | 7069 | } |
25da4f38 IZ |
7070 | } else { |
7071 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 7072 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
7073 | else { |
7074 | (void)SvIOK_only(sv); | |
45977657 | 7075 | SvIV_set(sv, SvIVX(sv) - 1); |
1c846c1f | 7076 | } |
55497cff | 7077 | } |
7078 | return; | |
7079 | } | |
28e5dec8 | 7080 | if (flags & SVp_NOK) { |
9d6ce603 | 7081 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
7082 | (void)SvNOK_only(sv); |
7083 | return; | |
7084 | } | |
8990e307 | 7085 | if (!(flags & SVp_POK)) { |
ef088171 NC |
7086 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
7087 | sv_upgrade(sv, ((flags & SVTYPEMASK) > SVt_IV) ? SVt_PVIV : SVt_IV); | |
7088 | SvIV_set(sv, -1); | |
7089 | (void)SvIOK_only(sv); | |
79072805 LW |
7090 | return; |
7091 | } | |
28e5dec8 JH |
7092 | #ifdef PERL_PRESERVE_IVUV |
7093 | { | |
504618e9 | 7094 | const int numtype = grok_number(SvPVX_const(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
7095 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
7096 | /* Need to try really hard to see if it's an integer. | |
7097 | 9.22337203685478e+18 is an integer. | |
7098 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
7099 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
7100 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
7101 | or we go insane. */ | |
d460ef45 | 7102 | |
28e5dec8 JH |
7103 | (void) sv_2iv(sv); |
7104 | if (SvIOK(sv)) | |
7105 | goto oops_its_int; | |
7106 | ||
7107 | /* sv_2iv *should* have made this an NV */ | |
7108 | if (flags & SVp_NOK) { | |
7109 | (void)SvNOK_only(sv); | |
9d6ce603 | 7110 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
7111 | return; |
7112 | } | |
7113 | /* I don't think we can get here. Maybe I should assert this | |
7114 | And if we do get here I suspect that sv_setnv will croak. NWC | |
7115 | Fall through. */ | |
7116 | #if defined(USE_LONG_DOUBLE) | |
7117 | 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", | |
3f7c398e | 7118 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 | 7119 | #else |
1779d84d | 7120 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
3f7c398e | 7121 | SvPVX_const(sv), SvIVX(sv), SvNVX(sv))); |
28e5dec8 JH |
7122 | #endif |
7123 | } | |
7124 | } | |
7125 | #endif /* PERL_PRESERVE_IVUV */ | |
3f7c398e | 7126 | sv_setnv(sv,Atof(SvPVX_const(sv)) - 1.0); /* punt */ |
79072805 LW |
7127 | } |
7128 | ||
954c1994 GS |
7129 | /* |
7130 | =for apidoc sv_mortalcopy | |
7131 | ||
645c22ef | 7132 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
7133 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
7134 | explicit call to FREETMPS, or by an implicit call at places such as | |
7135 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
7136 | |
7137 | =cut | |
7138 | */ | |
7139 | ||
79072805 LW |
7140 | /* Make a string that will exist for the duration of the expression |
7141 | * evaluation. Actually, it may have to last longer than that, but | |
7142 | * hopefully we won't free it until it has been assigned to a | |
7143 | * permanent location. */ | |
7144 | ||
7145 | SV * | |
864dbfa3 | 7146 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 7147 | { |
463ee0b2 | 7148 | register SV *sv; |
b881518d | 7149 | |
4561caa4 | 7150 | new_SV(sv); |
79072805 | 7151 | sv_setsv(sv,oldstr); |
677b06e3 GS |
7152 | EXTEND_MORTAL(1); |
7153 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
7154 | SvTEMP_on(sv); |
7155 | return sv; | |
7156 | } | |
7157 | ||
954c1994 GS |
7158 | /* |
7159 | =for apidoc sv_newmortal | |
7160 | ||
645c22ef | 7161 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
7162 | set to 1. It will be destroyed "soon", either by an explicit call to |
7163 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
7164 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
7165 | |
7166 | =cut | |
7167 | */ | |
7168 | ||
8990e307 | 7169 | SV * |
864dbfa3 | 7170 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
7171 | { |
7172 | register SV *sv; | |
7173 | ||
4561caa4 | 7174 | new_SV(sv); |
8990e307 | 7175 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
7176 | EXTEND_MORTAL(1); |
7177 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
7178 | return sv; |
7179 | } | |
7180 | ||
954c1994 GS |
7181 | /* |
7182 | =for apidoc sv_2mortal | |
7183 | ||
d4236ebc DM |
7184 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
7185 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
37d2ac18 NC |
7186 | statement boundaries. SvTEMP() is turned on which means that the SV's |
7187 | string buffer can be "stolen" if this SV is copied. See also C<sv_newmortal> | |
7188 | and C<sv_mortalcopy>. | |
954c1994 GS |
7189 | |
7190 | =cut | |
7191 | */ | |
7192 | ||
79072805 | 7193 | SV * |
864dbfa3 | 7194 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 | 7195 | { |
27da23d5 | 7196 | dVAR; |
79072805 LW |
7197 | if (!sv) |
7198 | return sv; | |
d689ffdd | 7199 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 7200 | return sv; |
677b06e3 GS |
7201 | EXTEND_MORTAL(1); |
7202 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 7203 | SvTEMP_on(sv); |
79072805 LW |
7204 | return sv; |
7205 | } | |
7206 | ||
954c1994 GS |
7207 | /* |
7208 | =for apidoc newSVpv | |
7209 | ||
7210 | Creates a new SV and copies a string into it. The reference count for the | |
7211 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
7212 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
7213 | ||
7214 | =cut | |
7215 | */ | |
7216 | ||
79072805 | 7217 | SV * |
864dbfa3 | 7218 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 7219 | { |
463ee0b2 | 7220 | register SV *sv; |
79072805 | 7221 | |
4561caa4 | 7222 | new_SV(sv); |
616d8c9c | 7223 | sv_setpvn(sv,s,len ? len : strlen(s)); |
79072805 LW |
7224 | return sv; |
7225 | } | |
7226 | ||
954c1994 GS |
7227 | /* |
7228 | =for apidoc newSVpvn | |
7229 | ||
7230 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 7231 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 | 7232 | string. You are responsible for ensuring that the source string is at least |
9e09f5f2 | 7233 | C<len> bytes long. If the C<s> argument is NULL the new SV will be undefined. |
954c1994 GS |
7234 | |
7235 | =cut | |
7236 | */ | |
7237 | ||
9da1e3b5 | 7238 | SV * |
864dbfa3 | 7239 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
7240 | { |
7241 | register SV *sv; | |
7242 | ||
7243 | new_SV(sv); | |
9da1e3b5 MUN |
7244 | sv_setpvn(sv,s,len); |
7245 | return sv; | |
7246 | } | |
7247 | ||
bd08039b NC |
7248 | |
7249 | /* | |
926f8064 | 7250 | =for apidoc newSVhek |
bd08039b NC |
7251 | |
7252 | Creates a new SV from the hash key structure. It will generate scalars that | |
5aaec2b4 NC |
7253 | point to the shared string table where possible. Returns a new (undefined) |
7254 | SV if the hek is NULL. | |
bd08039b NC |
7255 | |
7256 | =cut | |
7257 | */ | |
7258 | ||
7259 | SV * | |
c1b02ed8 | 7260 | Perl_newSVhek(pTHX_ const HEK *hek) |
bd08039b | 7261 | { |
5aaec2b4 NC |
7262 | if (!hek) { |
7263 | SV *sv; | |
7264 | ||
7265 | new_SV(sv); | |
7266 | return sv; | |
7267 | } | |
7268 | ||
bd08039b NC |
7269 | if (HEK_LEN(hek) == HEf_SVKEY) { |
7270 | return newSVsv(*(SV**)HEK_KEY(hek)); | |
7271 | } else { | |
7272 | const int flags = HEK_FLAGS(hek); | |
7273 | if (flags & HVhek_WASUTF8) { | |
7274 | /* Trouble :-) | |
7275 | Andreas would like keys he put in as utf8 to come back as utf8 | |
7276 | */ | |
7277 | STRLEN utf8_len = HEK_LEN(hek); | |
b64e5050 AL |
7278 | const U8 *as_utf8 = bytes_to_utf8 ((U8*)HEK_KEY(hek), &utf8_len); |
7279 | SV * const sv = newSVpvn ((const char*)as_utf8, utf8_len); | |
bd08039b NC |
7280 | |
7281 | SvUTF8_on (sv); | |
7282 | Safefree (as_utf8); /* bytes_to_utf8() allocates a new string */ | |
7283 | return sv; | |
7284 | } else if (flags & HVhek_REHASH) { | |
7285 | /* We don't have a pointer to the hv, so we have to replicate the | |
7286 | flag into every HEK. This hv is using custom a hasing | |
7287 | algorithm. Hence we can't return a shared string scalar, as | |
7288 | that would contain the (wrong) hash value, and might get passed | |
7289 | into an hv routine with a regular hash */ | |
7290 | ||
b64e5050 | 7291 | SV * const sv = newSVpvn (HEK_KEY(hek), HEK_LEN(hek)); |
bd08039b NC |
7292 | if (HEK_UTF8(hek)) |
7293 | SvUTF8_on (sv); | |
7294 | return sv; | |
7295 | } | |
7296 | /* This will be overwhelminly the most common case. */ | |
7297 | return newSVpvn_share(HEK_KEY(hek), | |
7298 | (HEK_UTF8(hek) ? -HEK_LEN(hek) : HEK_LEN(hek)), | |
7299 | HEK_HASH(hek)); | |
7300 | } | |
7301 | } | |
7302 | ||
1c846c1f NIS |
7303 | /* |
7304 | =for apidoc newSVpvn_share | |
7305 | ||
3f7c398e | 7306 | Creates a new SV with its SvPVX_const pointing to a shared string in the string |
645c22ef DM |
7307 | table. If the string does not already exist in the table, it is created |
7308 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
7309 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
7310 | otherwise the hash is computed. The idea here is that as the string table | |
3f7c398e | 7311 | is used for shared hash keys these strings will have SvPVX_const == HeKEY and |
645c22ef | 7312 | hash lookup will avoid string compare. |
1c846c1f NIS |
7313 | |
7314 | =cut | |
7315 | */ | |
7316 | ||
7317 | SV * | |
c3654f1a | 7318 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
7319 | { |
7320 | register SV *sv; | |
c3654f1a IH |
7321 | bool is_utf8 = FALSE; |
7322 | if (len < 0) { | |
77caf834 | 7323 | STRLEN tmplen = -len; |
c3654f1a | 7324 | is_utf8 = TRUE; |
75a54232 | 7325 | /* See the note in hv.c:hv_fetch() --jhi */ |
e1ec3a88 | 7326 | src = (char*)bytes_from_utf8((const U8*)src, &tmplen, &is_utf8); |
75a54232 JH |
7327 | len = tmplen; |
7328 | } | |
1c846c1f | 7329 | if (!hash) |
5afd6d42 | 7330 | PERL_HASH(hash, src, len); |
1c846c1f | 7331 | new_SV(sv); |
bdd68bc3 | 7332 | sv_upgrade(sv, SVt_PV); |
f880fe2f | 7333 | SvPV_set(sv, sharepvn(src, is_utf8?-len:len, hash)); |
b162af07 | 7334 | SvCUR_set(sv, len); |
b162af07 | 7335 | SvLEN_set(sv, 0); |
1c846c1f NIS |
7336 | SvREADONLY_on(sv); |
7337 | SvFAKE_on(sv); | |
7338 | SvPOK_on(sv); | |
c3654f1a IH |
7339 | if (is_utf8) |
7340 | SvUTF8_on(sv); | |
1c846c1f NIS |
7341 | return sv; |
7342 | } | |
7343 | ||
645c22ef | 7344 | |
cea2e8a9 | 7345 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7346 | |
7347 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7348 | * version of the main function, (which may itself be aliased to us). | |
7349 | * Don't access this version directly. | |
7350 | */ | |
7351 | ||
46fc3d4c | 7352 | SV * |
cea2e8a9 | 7353 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 7354 | { |
cea2e8a9 | 7355 | dTHX; |
46fc3d4c | 7356 | register SV *sv; |
7357 | va_list args; | |
46fc3d4c | 7358 | va_start(args, pat); |
c5be433b | 7359 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 7360 | va_end(args); |
7361 | return sv; | |
7362 | } | |
cea2e8a9 | 7363 | #endif |
46fc3d4c | 7364 | |
954c1994 GS |
7365 | /* |
7366 | =for apidoc newSVpvf | |
7367 | ||
645c22ef | 7368 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
7369 | C<sprintf>. |
7370 | ||
7371 | =cut | |
7372 | */ | |
7373 | ||
cea2e8a9 GS |
7374 | SV * |
7375 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
7376 | { | |
7377 | register SV *sv; | |
7378 | va_list args; | |
cea2e8a9 | 7379 | va_start(args, pat); |
c5be433b | 7380 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
7381 | va_end(args); |
7382 | return sv; | |
7383 | } | |
46fc3d4c | 7384 | |
645c22ef DM |
7385 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
7386 | ||
79072805 | 7387 | SV * |
c5be433b GS |
7388 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
7389 | { | |
7390 | register SV *sv; | |
7391 | new_SV(sv); | |
7392 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7393 | return sv; | |
7394 | } | |
7395 | ||
954c1994 GS |
7396 | /* |
7397 | =for apidoc newSVnv | |
7398 | ||
7399 | Creates a new SV and copies a floating point value into it. | |
7400 | The reference count for the SV is set to 1. | |
7401 | ||
7402 | =cut | |
7403 | */ | |
7404 | ||
c5be433b | 7405 | SV * |
65202027 | 7406 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 7407 | { |
463ee0b2 | 7408 | register SV *sv; |
79072805 | 7409 | |
4561caa4 | 7410 | new_SV(sv); |
79072805 LW |
7411 | sv_setnv(sv,n); |
7412 | return sv; | |
7413 | } | |
7414 | ||
954c1994 GS |
7415 | /* |
7416 | =for apidoc newSViv | |
7417 | ||
7418 | Creates a new SV and copies an integer into it. The reference count for the | |
7419 | SV is set to 1. | |
7420 | ||
7421 | =cut | |
7422 | */ | |
7423 | ||
79072805 | 7424 | SV * |
864dbfa3 | 7425 | Perl_newSViv(pTHX_ IV i) |
79072805 | 7426 | { |
463ee0b2 | 7427 | register SV *sv; |
79072805 | 7428 | |
4561caa4 | 7429 | new_SV(sv); |
79072805 LW |
7430 | sv_setiv(sv,i); |
7431 | return sv; | |
7432 | } | |
7433 | ||
954c1994 | 7434 | /* |
1a3327fb JH |
7435 | =for apidoc newSVuv |
7436 | ||
7437 | Creates a new SV and copies an unsigned integer into it. | |
7438 | The reference count for the SV is set to 1. | |
7439 | ||
7440 | =cut | |
7441 | */ | |
7442 | ||
7443 | SV * | |
7444 | Perl_newSVuv(pTHX_ UV u) | |
7445 | { | |
7446 | register SV *sv; | |
7447 | ||
7448 | new_SV(sv); | |
7449 | sv_setuv(sv,u); | |
7450 | return sv; | |
7451 | } | |
7452 | ||
7453 | /* | |
954c1994 GS |
7454 | =for apidoc newRV_noinc |
7455 | ||
7456 | Creates an RV wrapper for an SV. The reference count for the original | |
7457 | SV is B<not> incremented. | |
7458 | ||
7459 | =cut | |
7460 | */ | |
7461 | ||
2304df62 | 7462 | SV * |
864dbfa3 | 7463 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
7464 | { |
7465 | register SV *sv; | |
7466 | ||
4561caa4 | 7467 | new_SV(sv); |
2304df62 | 7468 | sv_upgrade(sv, SVt_RV); |
76e3520e | 7469 | SvTEMP_off(tmpRef); |
b162af07 | 7470 | SvRV_set(sv, tmpRef); |
2304df62 | 7471 | SvROK_on(sv); |
2304df62 AD |
7472 | return sv; |
7473 | } | |
7474 | ||
ff276b08 | 7475 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
7476 | * newRV_inc is in fact #defined to newRV in sv.h |
7477 | */ | |
7478 | ||
5f05dabc | 7479 | SV * |
864dbfa3 | 7480 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 7481 | { |
5f6447b6 | 7482 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 7483 | } |
5f05dabc | 7484 | |
954c1994 GS |
7485 | /* |
7486 | =for apidoc newSVsv | |
7487 | ||
7488 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 7489 | (Uses C<sv_setsv>). |
954c1994 GS |
7490 | |
7491 | =cut | |
7492 | */ | |
7493 | ||
79072805 | 7494 | SV * |
864dbfa3 | 7495 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 7496 | { |
463ee0b2 | 7497 | register SV *sv; |
79072805 LW |
7498 | |
7499 | if (!old) | |
7500 | return Nullsv; | |
8990e307 | 7501 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 7502 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 7503 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
7504 | return Nullsv; |
7505 | } | |
4561caa4 | 7506 | new_SV(sv); |
e90aabeb NC |
7507 | /* SV_GMAGIC is the default for sv_setv() |
7508 | SV_NOSTEAL prevents TEMP buffers being, well, stolen, and saves games | |
7509 | with SvTEMP_off and SvTEMP_on round a call to sv_setsv. */ | |
7510 | sv_setsv_flags(sv, old, SV_GMAGIC | SV_NOSTEAL); | |
463ee0b2 | 7511 | return sv; |
79072805 LW |
7512 | } |
7513 | ||
645c22ef DM |
7514 | /* |
7515 | =for apidoc sv_reset | |
7516 | ||
7517 | Underlying implementation for the C<reset> Perl function. | |
7518 | Note that the perl-level function is vaguely deprecated. | |
7519 | ||
7520 | =cut | |
7521 | */ | |
7522 | ||
79072805 | 7523 | void |
e1ec3a88 | 7524 | Perl_sv_reset(pTHX_ register const char *s, HV *stash) |
79072805 | 7525 | { |
27da23d5 | 7526 | dVAR; |
4802d5d7 | 7527 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 7528 | |
49d8d3a1 MB |
7529 | if (!stash) |
7530 | return; | |
7531 | ||
79072805 | 7532 | if (!*s) { /* reset ?? searches */ |
aec46f14 | 7533 | MAGIC * const mg = mg_find((SV *)stash, PERL_MAGIC_symtab); |
8d2f4536 NC |
7534 | if (mg) { |
7535 | PMOP *pm = (PMOP *) mg->mg_obj; | |
7536 | while (pm) { | |
7537 | pm->op_pmdynflags &= ~PMdf_USED; | |
7538 | pm = pm->op_pmnext; | |
7539 | } | |
79072805 LW |
7540 | } |
7541 | return; | |
7542 | } | |
7543 | ||
7544 | /* reset variables */ | |
7545 | ||
7546 | if (!HvARRAY(stash)) | |
7547 | return; | |
463ee0b2 LW |
7548 | |
7549 | Zero(todo, 256, char); | |
79072805 | 7550 | while (*s) { |
b464bac0 AL |
7551 | I32 max; |
7552 | I32 i = (unsigned char)*s; | |
79072805 LW |
7553 | if (s[1] == '-') { |
7554 | s += 2; | |
7555 | } | |
4802d5d7 | 7556 | max = (unsigned char)*s++; |
79072805 | 7557 | for ( ; i <= max; i++) { |
463ee0b2 LW |
7558 | todo[i] = 1; |
7559 | } | |
a0d0e21e | 7560 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
b464bac0 | 7561 | HE *entry; |
79072805 | 7562 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
7563 | entry; |
7564 | entry = HeNEXT(entry)) | |
7565 | { | |
b464bac0 AL |
7566 | register GV *gv; |
7567 | register SV *sv; | |
7568 | ||
1edc1566 | 7569 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 7570 | continue; |
1edc1566 | 7571 | gv = (GV*)HeVAL(entry); |
79072805 | 7572 | sv = GvSV(gv); |
e203899d NC |
7573 | if (sv) { |
7574 | if (SvTHINKFIRST(sv)) { | |
7575 | if (!SvREADONLY(sv) && SvROK(sv)) | |
7576 | sv_unref(sv); | |
7577 | /* XXX Is this continue a bug? Why should THINKFIRST | |
7578 | exempt us from resetting arrays and hashes? */ | |
7579 | continue; | |
7580 | } | |
7581 | SvOK_off(sv); | |
7582 | if (SvTYPE(sv) >= SVt_PV) { | |
7583 | SvCUR_set(sv, 0); | |
7584 | if (SvPVX_const(sv) != Nullch) | |
7585 | *SvPVX(sv) = '\0'; | |
7586 | SvTAINT(sv); | |
7587 | } | |
79072805 LW |
7588 | } |
7589 | if (GvAV(gv)) { | |
7590 | av_clear(GvAV(gv)); | |
7591 | } | |
bfcb3514 | 7592 | if (GvHV(gv) && !HvNAME_get(GvHV(gv))) { |
463ee0b2 | 7593 | hv_clear(GvHV(gv)); |
2f42fcb0 | 7594 | #ifndef PERL_MICRO |
fa6a1c44 | 7595 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
7596 | if (gv == PL_envgv |
7597 | # ifdef USE_ITHREADS | |
7598 | && PL_curinterp == aTHX | |
7599 | # endif | |
7600 | ) | |
7601 | { | |
79072805 | 7602 | environ[0] = Nullch; |
4efc5df6 | 7603 | } |
a0d0e21e | 7604 | #endif |
2f42fcb0 | 7605 | #endif /* !PERL_MICRO */ |
79072805 LW |
7606 | } |
7607 | } | |
7608 | } | |
7609 | } | |
7610 | } | |
7611 | ||
645c22ef DM |
7612 | /* |
7613 | =for apidoc sv_2io | |
7614 | ||
7615 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
7616 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
7617 | named after the PV if we're a string. | |
7618 | ||
7619 | =cut | |
7620 | */ | |
7621 | ||
46fc3d4c | 7622 | IO* |
864dbfa3 | 7623 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 7624 | { |
7625 | IO* io; | |
7626 | GV* gv; | |
7627 | ||
7628 | switch (SvTYPE(sv)) { | |
7629 | case SVt_PVIO: | |
7630 | io = (IO*)sv; | |
7631 | break; | |
7632 | case SVt_PVGV: | |
7633 | gv = (GV*)sv; | |
7634 | io = GvIO(gv); | |
7635 | if (!io) | |
cea2e8a9 | 7636 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 7637 | break; |
7638 | default: | |
7639 | if (!SvOK(sv)) | |
cea2e8a9 | 7640 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 7641 | if (SvROK(sv)) |
7642 | return sv_2io(SvRV(sv)); | |
7a5fd60d | 7643 | gv = gv_fetchsv(sv, FALSE, SVt_PVIO); |
46fc3d4c | 7644 | if (gv) |
7645 | io = GvIO(gv); | |
7646 | else | |
7647 | io = 0; | |
7648 | if (!io) | |
35c1215d | 7649 | Perl_croak(aTHX_ "Bad filehandle: %"SVf, sv); |
46fc3d4c | 7650 | break; |
7651 | } | |
7652 | return io; | |
7653 | } | |
7654 | ||
645c22ef DM |
7655 | /* |
7656 | =for apidoc sv_2cv | |
7657 | ||
7658 | Using various gambits, try to get a CV from an SV; in addition, try if | |
7659 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
7660 | ||
7661 | =cut | |
7662 | */ | |
7663 | ||
79072805 | 7664 | CV * |
864dbfa3 | 7665 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 7666 | { |
27da23d5 | 7667 | dVAR; |
c04a4dfe JH |
7668 | GV *gv = Nullgv; |
7669 | CV *cv = Nullcv; | |
79072805 LW |
7670 | |
7671 | if (!sv) | |
93a17b20 | 7672 | return *gvp = Nullgv, Nullcv; |
79072805 | 7673 | switch (SvTYPE(sv)) { |
79072805 LW |
7674 | case SVt_PVCV: |
7675 | *st = CvSTASH(sv); | |
7676 | *gvp = Nullgv; | |
7677 | return (CV*)sv; | |
7678 | case SVt_PVHV: | |
7679 | case SVt_PVAV: | |
7680 | *gvp = Nullgv; | |
7681 | return Nullcv; | |
8990e307 LW |
7682 | case SVt_PVGV: |
7683 | gv = (GV*)sv; | |
a0d0e21e | 7684 | *gvp = gv; |
8990e307 LW |
7685 | *st = GvESTASH(gv); |
7686 | goto fix_gv; | |
7687 | ||
79072805 | 7688 | default: |
5b295bef | 7689 | SvGETMAGIC(sv); |
a0d0e21e | 7690 | if (SvROK(sv)) { |
f5284f61 IZ |
7691 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
7692 | tryAMAGICunDEREF(to_cv); | |
7693 | ||
62f274bf GS |
7694 | sv = SvRV(sv); |
7695 | if (SvTYPE(sv) == SVt_PVCV) { | |
7696 | cv = (CV*)sv; | |
7697 | *gvp = Nullgv; | |
7698 | *st = CvSTASH(cv); | |
7699 | return cv; | |
7700 | } | |
7701 | else if(isGV(sv)) | |
7702 | gv = (GV*)sv; | |
7703 | else | |
cea2e8a9 | 7704 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 7705 | } |
62f274bf | 7706 | else if (isGV(sv)) |
79072805 LW |
7707 | gv = (GV*)sv; |
7708 | else | |
7a5fd60d | 7709 | gv = gv_fetchsv(sv, lref, SVt_PVCV); |
79072805 LW |
7710 | *gvp = gv; |
7711 | if (!gv) | |
7712 | return Nullcv; | |
7713 | *st = GvESTASH(gv); | |
8990e307 | 7714 | fix_gv: |
8ebc5c01 | 7715 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 7716 | SV *tmpsv; |
748a9306 | 7717 | ENTER; |
4633a7c4 | 7718 | tmpsv = NEWSV(704,0); |
16660edb | 7719 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
7720 | /* XXX this is probably not what they think they're getting. |
7721 | * It has the same effect as "sub name;", i.e. just a forward | |
7722 | * declaration! */ | |
774d564b | 7723 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
7724 | newSVOP(OP_CONST, 0, tmpsv), |
7725 | Nullop, | |
8990e307 | 7726 | Nullop); |
748a9306 | 7727 | LEAVE; |
8ebc5c01 | 7728 | if (!GvCVu(gv)) |
35c1215d NC |
7729 | Perl_croak(aTHX_ "Unable to create sub named \"%"SVf"\"", |
7730 | sv); | |
8990e307 | 7731 | } |
8ebc5c01 | 7732 | return GvCVu(gv); |
79072805 LW |
7733 | } |
7734 | } | |
7735 | ||
c461cf8f JH |
7736 | /* |
7737 | =for apidoc sv_true | |
7738 | ||
7739 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
7740 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
7741 | instead use an in-line version. | |
c461cf8f JH |
7742 | |
7743 | =cut | |
7744 | */ | |
7745 | ||
79072805 | 7746 | I32 |
864dbfa3 | 7747 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 7748 | { |
8990e307 LW |
7749 | if (!sv) |
7750 | return 0; | |
79072805 | 7751 | if (SvPOK(sv)) { |
e1ec3a88 | 7752 | const register XPV* tXpv; |
4e35701f | 7753 | if ((tXpv = (XPV*)SvANY(sv)) && |
c2f1de04 | 7754 | (tXpv->xpv_cur > 1 || |
339049b0 | 7755 | (tXpv->xpv_cur && *sv->sv_u.svu_pv != '0'))) |
79072805 LW |
7756 | return 1; |
7757 | else | |
7758 | return 0; | |
7759 | } | |
7760 | else { | |
7761 | if (SvIOK(sv)) | |
463ee0b2 | 7762 | return SvIVX(sv) != 0; |
79072805 LW |
7763 | else { |
7764 | if (SvNOK(sv)) | |
463ee0b2 | 7765 | return SvNVX(sv) != 0.0; |
79072805 | 7766 | else |
463ee0b2 | 7767 | return sv_2bool(sv); |
79072805 LW |
7768 | } |
7769 | } | |
7770 | } | |
79072805 | 7771 | |
645c22ef DM |
7772 | /* |
7773 | =for apidoc sv_iv | |
7774 | ||
7775 | A private implementation of the C<SvIVx> macro for compilers which can't | |
7776 | cope with complex macro expressions. Always use the macro instead. | |
7777 | ||
7778 | =cut | |
7779 | */ | |
7780 | ||
ff68c719 | 7781 | IV |
864dbfa3 | 7782 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 7783 | { |
25da4f38 IZ |
7784 | if (SvIOK(sv)) { |
7785 | if (SvIsUV(sv)) | |
7786 | return (IV)SvUVX(sv); | |
ff68c719 | 7787 | return SvIVX(sv); |
25da4f38 | 7788 | } |
ff68c719 | 7789 | return sv_2iv(sv); |
85e6fe83 | 7790 | } |
85e6fe83 | 7791 | |
645c22ef DM |
7792 | /* |
7793 | =for apidoc sv_uv | |
7794 | ||
7795 | A private implementation of the C<SvUVx> macro for compilers which can't | |
7796 | cope with complex macro expressions. Always use the macro instead. | |
7797 | ||
7798 | =cut | |
7799 | */ | |
7800 | ||
ff68c719 | 7801 | UV |
864dbfa3 | 7802 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 7803 | { |
25da4f38 IZ |
7804 | if (SvIOK(sv)) { |
7805 | if (SvIsUV(sv)) | |
7806 | return SvUVX(sv); | |
7807 | return (UV)SvIVX(sv); | |
7808 | } | |
ff68c719 | 7809 | return sv_2uv(sv); |
7810 | } | |
85e6fe83 | 7811 | |
645c22ef DM |
7812 | /* |
7813 | =for apidoc sv_nv | |
7814 | ||
7815 | A private implementation of the C<SvNVx> macro for compilers which can't | |
7816 | cope with complex macro expressions. Always use the macro instead. | |
7817 | ||
7818 | =cut | |
7819 | */ | |
7820 | ||
65202027 | 7821 | NV |
864dbfa3 | 7822 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 7823 | { |
ff68c719 | 7824 | if (SvNOK(sv)) |
7825 | return SvNVX(sv); | |
7826 | return sv_2nv(sv); | |
79072805 | 7827 | } |
79072805 | 7828 | |
09540bc3 JH |
7829 | /* sv_pv() is now a macro using SvPV_nolen(); |
7830 | * this function provided for binary compatibility only | |
7831 | */ | |
7832 | ||
7833 | char * | |
7834 | Perl_sv_pv(pTHX_ SV *sv) | |
7835 | { | |
09540bc3 JH |
7836 | if (SvPOK(sv)) |
7837 | return SvPVX(sv); | |
7838 | ||
93524f2b | 7839 | return sv_2pv(sv, 0); |
09540bc3 JH |
7840 | } |
7841 | ||
645c22ef DM |
7842 | /* |
7843 | =for apidoc sv_pv | |
7844 | ||
baca2b92 | 7845 | Use the C<SvPV_nolen> macro instead |
645c22ef | 7846 | |
645c22ef DM |
7847 | =for apidoc sv_pvn |
7848 | ||
7849 | A private implementation of the C<SvPV> macro for compilers which can't | |
7850 | cope with complex macro expressions. Always use the macro instead. | |
7851 | ||
7852 | =cut | |
7853 | */ | |
7854 | ||
1fa8b10d | 7855 | char * |
864dbfa3 | 7856 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 7857 | { |
85e6fe83 LW |
7858 | if (SvPOK(sv)) { |
7859 | *lp = SvCUR(sv); | |
a0d0e21e | 7860 | return SvPVX(sv); |
85e6fe83 | 7861 | } |
463ee0b2 | 7862 | return sv_2pv(sv, lp); |
79072805 | 7863 | } |
79072805 | 7864 | |
6e9d1081 NC |
7865 | |
7866 | char * | |
7867 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
7868 | { | |
7869 | if (SvPOK(sv)) { | |
7870 | *lp = SvCUR(sv); | |
7871 | return SvPVX(sv); | |
7872 | } | |
7873 | return sv_2pv_flags(sv, lp, 0); | |
7874 | } | |
7875 | ||
09540bc3 JH |
7876 | /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags(); |
7877 | * this function provided for binary compatibility only | |
7878 | */ | |
7879 | ||
7880 | char * | |
7881 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) | |
7882 | { | |
7883 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); | |
7884 | } | |
7885 | ||
c461cf8f JH |
7886 | /* |
7887 | =for apidoc sv_pvn_force | |
7888 | ||
7889 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
7890 | A private implementation of the C<SvPV_force> macro for compilers which |
7891 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 7892 | |
8d6d96c1 HS |
7893 | =for apidoc sv_pvn_force_flags |
7894 | ||
7895 | Get a sensible string out of the SV somehow. | |
7896 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
7897 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
7898 | implemented in terms of this function. | |
645c22ef DM |
7899 | You normally want to use the various wrapper macros instead: see |
7900 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
7901 | |
7902 | =cut | |
7903 | */ | |
7904 | ||
7905 | char * | |
7906 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
7907 | { | |
a0d0e21e | 7908 | |
6fc92669 | 7909 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
765f542d | 7910 | sv_force_normal_flags(sv, 0); |
1c846c1f | 7911 | |
a0d0e21e | 7912 | if (SvPOK(sv)) { |
13c5b33c NC |
7913 | if (lp) |
7914 | *lp = SvCUR(sv); | |
a0d0e21e LW |
7915 | } |
7916 | else { | |
a3b680e6 | 7917 | char *s; |
13c5b33c NC |
7918 | STRLEN len; |
7919 | ||
4d84ee25 | 7920 | if (SvREADONLY(sv) && !(flags & SV_MUTABLE_RETURN)) { |
b64e5050 | 7921 | const char * const ref = sv_reftype(sv,0); |
4d84ee25 NC |
7922 | if (PL_op) |
7923 | Perl_croak(aTHX_ "Can't coerce readonly %s to string in %s", | |
b64e5050 | 7924 | ref, OP_NAME(PL_op)); |
4d84ee25 | 7925 | else |
b64e5050 | 7926 | Perl_croak(aTHX_ "Can't coerce readonly %s to string", ref); |
4d84ee25 | 7927 | } |
b64e5050 | 7928 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) |
cea2e8a9 | 7929 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 7930 | OP_NAME(PL_op)); |
b64e5050 | 7931 | s = sv_2pv_flags(sv, &len, flags); |
13c5b33c NC |
7932 | if (lp) |
7933 | *lp = len; | |
7934 | ||
3f7c398e | 7935 | if (s != SvPVX_const(sv)) { /* Almost, but not quite, sv_setpvn() */ |
a0d0e21e LW |
7936 | if (SvROK(sv)) |
7937 | sv_unref(sv); | |
862a34c6 | 7938 | SvUPGRADE(sv, SVt_PV); /* Never FALSE */ |
a0d0e21e | 7939 | SvGROW(sv, len + 1); |
706aa1c9 | 7940 | Move(s,SvPVX(sv),len,char); |
a0d0e21e LW |
7941 | SvCUR_set(sv, len); |
7942 | *SvEND(sv) = '\0'; | |
7943 | } | |
7944 | if (!SvPOK(sv)) { | |
7945 | SvPOK_on(sv); /* validate pointer */ | |
7946 | SvTAINT(sv); | |
1d7c1841 | 7947 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3f7c398e | 7948 | PTR2UV(sv),SvPVX_const(sv))); |
a0d0e21e LW |
7949 | } |
7950 | } | |
4d84ee25 | 7951 | return SvPVX_mutable(sv); |
a0d0e21e LW |
7952 | } |
7953 | ||
09540bc3 JH |
7954 | /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags(); |
7955 | * this function provided for binary compatibility only | |
7956 | */ | |
7957 | ||
7958 | char * | |
7959 | Perl_sv_pvbyte(pTHX_ SV *sv) | |
7960 | { | |
7961 | sv_utf8_downgrade(sv,0); | |
7962 | return sv_pv(sv); | |
7963 | } | |
7964 | ||
645c22ef DM |
7965 | /* |
7966 | =for apidoc sv_pvbyte | |
7967 | ||
baca2b92 | 7968 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 7969 | |
645c22ef DM |
7970 | =for apidoc sv_pvbyten |
7971 | ||
7972 | A private implementation of the C<SvPVbyte> macro for compilers | |
7973 | which can't cope with complex macro expressions. Always use the macro | |
7974 | instead. | |
7975 | ||
7976 | =cut | |
7977 | */ | |
7978 | ||
7340a771 GS |
7979 | char * |
7980 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
7981 | { | |
ffebcc3e | 7982 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
7983 | return sv_pvn(sv,lp); |
7984 | } | |
7985 | ||
645c22ef DM |
7986 | /* |
7987 | =for apidoc sv_pvbyten_force | |
7988 | ||
7989 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
7990 | which can't cope with complex macro expressions. Always use the macro | |
7991 | instead. | |
7992 | ||
7993 | =cut | |
7994 | */ | |
7995 | ||
7340a771 GS |
7996 | char * |
7997 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
7998 | { | |
46ec2f14 | 7999 | sv_pvn_force(sv,lp); |
ffebcc3e | 8000 | sv_utf8_downgrade(sv,0); |
46ec2f14 TS |
8001 | *lp = SvCUR(sv); |
8002 | return SvPVX(sv); | |
7340a771 GS |
8003 | } |
8004 | ||
09540bc3 JH |
8005 | /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags(); |
8006 | * this function provided for binary compatibility only | |
8007 | */ | |
8008 | ||
8009 | char * | |
8010 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
8011 | { | |
8012 | sv_utf8_upgrade(sv); | |
8013 | return sv_pv(sv); | |
8014 | } | |
8015 | ||
645c22ef DM |
8016 | /* |
8017 | =for apidoc sv_pvutf8 | |
8018 | ||
baca2b92 | 8019 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 8020 | |
645c22ef DM |
8021 | =for apidoc sv_pvutf8n |
8022 | ||
8023 | A private implementation of the C<SvPVutf8> macro for compilers | |
8024 | which can't cope with complex macro expressions. Always use the macro | |
8025 | instead. | |
8026 | ||
8027 | =cut | |
8028 | */ | |
8029 | ||
7340a771 GS |
8030 | char * |
8031 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
8032 | { | |
560a288e | 8033 | sv_utf8_upgrade(sv); |
7340a771 GS |
8034 | return sv_pvn(sv,lp); |
8035 | } | |
8036 | ||
c461cf8f JH |
8037 | /* |
8038 | =for apidoc sv_pvutf8n_force | |
8039 | ||
645c22ef DM |
8040 | A private implementation of the C<SvPVutf8_force> macro for compilers |
8041 | which can't cope with complex macro expressions. Always use the macro | |
8042 | instead. | |
c461cf8f JH |
8043 | |
8044 | =cut | |
8045 | */ | |
8046 | ||
7340a771 GS |
8047 | char * |
8048 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
8049 | { | |
46ec2f14 | 8050 | sv_pvn_force(sv,lp); |
560a288e | 8051 | sv_utf8_upgrade(sv); |
46ec2f14 TS |
8052 | *lp = SvCUR(sv); |
8053 | return SvPVX(sv); | |
7340a771 GS |
8054 | } |
8055 | ||
c461cf8f JH |
8056 | /* |
8057 | =for apidoc sv_reftype | |
8058 | ||
8059 | Returns a string describing what the SV is a reference to. | |
8060 | ||
8061 | =cut | |
8062 | */ | |
8063 | ||
1cb0ed9b | 8064 | char * |
bfed75c6 | 8065 | Perl_sv_reftype(pTHX_ const SV *sv, int ob) |
a0d0e21e | 8066 | { |
07409e01 NC |
8067 | /* The fact that I don't need to downcast to char * everywhere, only in ?: |
8068 | inside return suggests a const propagation bug in g++. */ | |
c86bf373 | 8069 | if (ob && SvOBJECT(sv)) { |
1b6737cc | 8070 | char * const name = HvNAME_get(SvSTASH(sv)); |
07409e01 | 8071 | return name ? name : (char *) "__ANON__"; |
c86bf373 | 8072 | } |
a0d0e21e LW |
8073 | else { |
8074 | switch (SvTYPE(sv)) { | |
8075 | case SVt_NULL: | |
8076 | case SVt_IV: | |
8077 | case SVt_NV: | |
8078 | case SVt_RV: | |
8079 | case SVt_PV: | |
8080 | case SVt_PVIV: | |
8081 | case SVt_PVNV: | |
8082 | case SVt_PVMG: | |
8083 | case SVt_PVBM: | |
1cb0ed9b | 8084 | if (SvVOK(sv)) |
439cb1c4 | 8085 | return "VSTRING"; |
a0d0e21e LW |
8086 | if (SvROK(sv)) |
8087 | return "REF"; | |
8088 | else | |
8089 | return "SCALAR"; | |
1cb0ed9b | 8090 | |
07409e01 | 8091 | case SVt_PVLV: return (char *) (SvROK(sv) ? "REF" |
be65207d DM |
8092 | /* tied lvalues should appear to be |
8093 | * scalars for backwards compatitbility */ | |
8094 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
07409e01 | 8095 | ? "SCALAR" : "LVALUE"); |
a0d0e21e LW |
8096 | case SVt_PVAV: return "ARRAY"; |
8097 | case SVt_PVHV: return "HASH"; | |
8098 | case SVt_PVCV: return "CODE"; | |
8099 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 8100 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 8101 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
8102 | default: return "UNKNOWN"; |
8103 | } | |
8104 | } | |
8105 | } | |
8106 | ||
954c1994 GS |
8107 | /* |
8108 | =for apidoc sv_isobject | |
8109 | ||
8110 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
8111 | object. If the SV is not an RV, or if the object is not blessed, then this | |
8112 | will return false. | |
8113 | ||
8114 | =cut | |
8115 | */ | |
8116 | ||
463ee0b2 | 8117 | int |
864dbfa3 | 8118 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 8119 | { |
68dc0745 | 8120 | if (!sv) |
8121 | return 0; | |
5b295bef | 8122 | SvGETMAGIC(sv); |
85e6fe83 LW |
8123 | if (!SvROK(sv)) |
8124 | return 0; | |
8125 | sv = (SV*)SvRV(sv); | |
8126 | if (!SvOBJECT(sv)) | |
8127 | return 0; | |
8128 | return 1; | |
8129 | } | |
8130 | ||
954c1994 GS |
8131 | /* |
8132 | =for apidoc sv_isa | |
8133 | ||
8134 | Returns a boolean indicating whether the SV is blessed into the specified | |
8135 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
8136 | an inheritance relationship. | |
8137 | ||
8138 | =cut | |
8139 | */ | |
8140 | ||
85e6fe83 | 8141 | int |
864dbfa3 | 8142 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 8143 | { |
bfcb3514 | 8144 | const char *hvname; |
68dc0745 | 8145 | if (!sv) |
8146 | return 0; | |
5b295bef | 8147 | SvGETMAGIC(sv); |
ed6116ce | 8148 | if (!SvROK(sv)) |
463ee0b2 | 8149 | return 0; |
ed6116ce LW |
8150 | sv = (SV*)SvRV(sv); |
8151 | if (!SvOBJECT(sv)) | |
463ee0b2 | 8152 | return 0; |
bfcb3514 NC |
8153 | hvname = HvNAME_get(SvSTASH(sv)); |
8154 | if (!hvname) | |
e27ad1f2 | 8155 | return 0; |
463ee0b2 | 8156 | |
bfcb3514 | 8157 | return strEQ(hvname, name); |
463ee0b2 LW |
8158 | } |
8159 | ||
954c1994 GS |
8160 | /* |
8161 | =for apidoc newSVrv | |
8162 | ||
8163 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
8164 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
8165 | be blessed in the specified package. The new SV is returned and its | |
8166 | reference count is 1. | |
8167 | ||
8168 | =cut | |
8169 | */ | |
8170 | ||
463ee0b2 | 8171 | SV* |
864dbfa3 | 8172 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 8173 | { |
463ee0b2 LW |
8174 | SV *sv; |
8175 | ||
4561caa4 | 8176 | new_SV(sv); |
51cf62d8 | 8177 | |
765f542d | 8178 | SV_CHECK_THINKFIRST_COW_DROP(rv); |
51cf62d8 | 8179 | SvAMAGIC_off(rv); |
51cf62d8 | 8180 | |
0199fce9 | 8181 | if (SvTYPE(rv) >= SVt_PVMG) { |
a3b680e6 | 8182 | const U32 refcnt = SvREFCNT(rv); |
0199fce9 JD |
8183 | SvREFCNT(rv) = 0; |
8184 | sv_clear(rv); | |
8185 | SvFLAGS(rv) = 0; | |
8186 | SvREFCNT(rv) = refcnt; | |
8187 | } | |
8188 | ||
51cf62d8 | 8189 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
8190 | sv_upgrade(rv, SVt_RV); |
8191 | else if (SvTYPE(rv) > SVt_RV) { | |
8bd4d4c5 | 8192 | SvPV_free(rv); |
0199fce9 JD |
8193 | SvCUR_set(rv, 0); |
8194 | SvLEN_set(rv, 0); | |
8195 | } | |
51cf62d8 | 8196 | |
0c34ef67 | 8197 | SvOK_off(rv); |
b162af07 | 8198 | SvRV_set(rv, sv); |
ed6116ce | 8199 | SvROK_on(rv); |
463ee0b2 | 8200 | |
a0d0e21e | 8201 | if (classname) { |
1b6737cc | 8202 | HV* const stash = gv_stashpv(classname, TRUE); |
a0d0e21e LW |
8203 | (void)sv_bless(rv, stash); |
8204 | } | |
8205 | return sv; | |
8206 | } | |
8207 | ||
954c1994 GS |
8208 | /* |
8209 | =for apidoc sv_setref_pv | |
8210 | ||
8211 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
8212 | argument will be upgraded to an RV. That RV will be modified to point to | |
8213 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
8214 | into the SV. The C<classname> argument indicates the package for the | |
8215 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8216 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
8217 | |
8218 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
8219 | objects will become corrupted by the pointer copy process. | |
8220 | ||
8221 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
8222 | ||
8223 | =cut | |
8224 | */ | |
8225 | ||
a0d0e21e | 8226 | SV* |
864dbfa3 | 8227 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 8228 | { |
189b2af5 | 8229 | if (!pv) { |
3280af22 | 8230 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
8231 | SvSETMAGIC(rv); |
8232 | } | |
a0d0e21e | 8233 | else |
56431972 | 8234 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
8235 | return rv; |
8236 | } | |
8237 | ||
954c1994 GS |
8238 | /* |
8239 | =for apidoc sv_setref_iv | |
8240 | ||
8241 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
8242 | argument will be upgraded to an RV. That RV will be modified to point to | |
8243 | the new SV. The C<classname> argument indicates the package for the | |
8244 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8245 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
8246 | |
8247 | =cut | |
8248 | */ | |
8249 | ||
a0d0e21e | 8250 | SV* |
864dbfa3 | 8251 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
8252 | { |
8253 | sv_setiv(newSVrv(rv,classname), iv); | |
8254 | return rv; | |
8255 | } | |
8256 | ||
954c1994 | 8257 | /* |
e1c57cef JH |
8258 | =for apidoc sv_setref_uv |
8259 | ||
8260 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
8261 | argument will be upgraded to an RV. That RV will be modified to point to | |
8262 | the new SV. The C<classname> argument indicates the package for the | |
8263 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8264 | will have a reference count of 1, and the RV will be returned. |
e1c57cef JH |
8265 | |
8266 | =cut | |
8267 | */ | |
8268 | ||
8269 | SV* | |
8270 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
8271 | { | |
8272 | sv_setuv(newSVrv(rv,classname), uv); | |
8273 | return rv; | |
8274 | } | |
8275 | ||
8276 | /* | |
954c1994 GS |
8277 | =for apidoc sv_setref_nv |
8278 | ||
8279 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
8280 | argument will be upgraded to an RV. That RV will be modified to point to | |
8281 | the new SV. The C<classname> argument indicates the package for the | |
8282 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8283 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
8284 | |
8285 | =cut | |
8286 | */ | |
8287 | ||
a0d0e21e | 8288 | SV* |
65202027 | 8289 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
8290 | { |
8291 | sv_setnv(newSVrv(rv,classname), nv); | |
8292 | return rv; | |
8293 | } | |
463ee0b2 | 8294 | |
954c1994 GS |
8295 | /* |
8296 | =for apidoc sv_setref_pvn | |
8297 | ||
8298 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
8299 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
8300 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
8301 | argument indicates the package for the blessing. Set C<classname> to | |
7a5fa8a2 | 8302 | C<Nullch> to avoid the blessing. The new SV will have a reference count |
d34c2299 | 8303 | of 1, and the RV will be returned. |
954c1994 GS |
8304 | |
8305 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
8306 | ||
8307 | =cut | |
8308 | */ | |
8309 | ||
a0d0e21e | 8310 | SV* |
1b6737cc | 8311 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, const char *pv, STRLEN n) |
a0d0e21e LW |
8312 | { |
8313 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
8314 | return rv; |
8315 | } | |
8316 | ||
954c1994 GS |
8317 | /* |
8318 | =for apidoc sv_bless | |
8319 | ||
8320 | Blesses an SV into a specified package. The SV must be an RV. The package | |
8321 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
8322 | of the SV is unaffected. | |
8323 | ||
8324 | =cut | |
8325 | */ | |
8326 | ||
a0d0e21e | 8327 | SV* |
864dbfa3 | 8328 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 8329 | { |
76e3520e | 8330 | SV *tmpRef; |
a0d0e21e | 8331 | if (!SvROK(sv)) |
cea2e8a9 | 8332 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
8333 | tmpRef = SvRV(sv); |
8334 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
8335 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 8336 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
8337 | if (SvOBJECT(tmpRef)) { |
8338 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 8339 | --PL_sv_objcount; |
76e3520e | 8340 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 8341 | } |
a0d0e21e | 8342 | } |
76e3520e GS |
8343 | SvOBJECT_on(tmpRef); |
8344 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 8345 | ++PL_sv_objcount; |
862a34c6 | 8346 | SvUPGRADE(tmpRef, SVt_PVMG); |
b162af07 | 8347 | SvSTASH_set(tmpRef, (HV*)SvREFCNT_inc(stash)); |
a0d0e21e | 8348 | |
2e3febc6 CS |
8349 | if (Gv_AMG(stash)) |
8350 | SvAMAGIC_on(sv); | |
8351 | else | |
8352 | SvAMAGIC_off(sv); | |
a0d0e21e | 8353 | |
1edbfb88 AB |
8354 | if(SvSMAGICAL(tmpRef)) |
8355 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
8356 | mg_set(tmpRef); | |
8357 | ||
8358 | ||
ecdeb87c | 8359 | |
a0d0e21e LW |
8360 | return sv; |
8361 | } | |
8362 | ||
645c22ef | 8363 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
8364 | */ |
8365 | ||
76e3520e | 8366 | STATIC void |
cea2e8a9 | 8367 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 8368 | { |
850fabdf GS |
8369 | void *xpvmg; |
8370 | ||
a0d0e21e LW |
8371 | assert(SvTYPE(sv) == SVt_PVGV); |
8372 | SvFAKE_off(sv); | |
8373 | if (GvGP(sv)) | |
1edc1566 | 8374 | gp_free((GV*)sv); |
e826b3c7 | 8375 | if (GvSTASH(sv)) { |
e15faf7d | 8376 | sv_del_backref((SV*)GvSTASH(sv), sv); |
e826b3c7 GS |
8377 | GvSTASH(sv) = Nullhv; |
8378 | } | |
14befaf4 | 8379 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 8380 | Safefree(GvNAME(sv)); |
a5f75d66 | 8381 | GvMULTI_off(sv); |
850fabdf GS |
8382 | |
8383 | /* need to keep SvANY(sv) in the right arena */ | |
8384 | xpvmg = new_XPVMG(); | |
8385 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
8386 | del_XPVGV(SvANY(sv)); | |
8387 | SvANY(sv) = xpvmg; | |
8388 | ||
a0d0e21e LW |
8389 | SvFLAGS(sv) &= ~SVTYPEMASK; |
8390 | SvFLAGS(sv) |= SVt_PVMG; | |
8391 | } | |
8392 | ||
954c1994 | 8393 | /* |
840a7b70 | 8394 | =for apidoc sv_unref_flags |
954c1994 GS |
8395 | |
8396 | Unsets the RV status of the SV, and decrements the reference count of | |
8397 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
8398 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
8399 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
8400 | (otherwise the decrementing is conditional on the reference count being | |
8401 | different from one or the reference being a readonly SV). | |
7889fe52 | 8402 | See C<SvROK_off>. |
954c1994 GS |
8403 | |
8404 | =cut | |
8405 | */ | |
8406 | ||
ed6116ce | 8407 | void |
e15faf7d | 8408 | Perl_sv_unref_flags(pTHX_ SV *ref, U32 flags) |
ed6116ce | 8409 | { |
b64e5050 | 8410 | SV* const target = SvRV(ref); |
810b8aa5 | 8411 | |
e15faf7d NC |
8412 | if (SvWEAKREF(ref)) { |
8413 | sv_del_backref(target, ref); | |
8414 | SvWEAKREF_off(ref); | |
8415 | SvRV_set(ref, NULL); | |
810b8aa5 GS |
8416 | return; |
8417 | } | |
e15faf7d NC |
8418 | SvRV_set(ref, NULL); |
8419 | SvROK_off(ref); | |
8420 | /* You can't have a || SvREADONLY(target) here, as $a = $$a, where $a was | |
04ca4930 | 8421 | assigned to as BEGIN {$a = \"Foo"} will fail. */ |
e15faf7d NC |
8422 | if (SvREFCNT(target) != 1 || (flags & SV_IMMEDIATE_UNREF)) |
8423 | SvREFCNT_dec(target); | |
840a7b70 | 8424 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
e15faf7d | 8425 | sv_2mortal(target); /* Schedule for freeing later */ |
ed6116ce | 8426 | } |
8990e307 | 8427 | |
840a7b70 IZ |
8428 | /* |
8429 | =for apidoc sv_unref | |
8430 | ||
8431 | Unsets the RV status of the SV, and decrements the reference count of | |
8432 | whatever was being referenced by the RV. This can almost be thought of | |
8433 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 8434 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
8435 | |
8436 | =cut | |
8437 | */ | |
8438 | ||
8439 | void | |
8440 | Perl_sv_unref(pTHX_ SV *sv) | |
8441 | { | |
8442 | sv_unref_flags(sv, 0); | |
8443 | } | |
8444 | ||
645c22ef DM |
8445 | /* |
8446 | =for apidoc sv_taint | |
8447 | ||
8448 | Taint an SV. Use C<SvTAINTED_on> instead. | |
8449 | =cut | |
8450 | */ | |
8451 | ||
bbce6d69 | 8452 | void |
864dbfa3 | 8453 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 8454 | { |
14befaf4 | 8455 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 8456 | } |
8457 | ||
645c22ef DM |
8458 | /* |
8459 | =for apidoc sv_untaint | |
8460 | ||
8461 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
8462 | =cut | |
8463 | */ | |
8464 | ||
bbce6d69 | 8465 | void |
864dbfa3 | 8466 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 8467 | { |
13f57bf8 | 8468 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
b64e5050 | 8469 | MAGIC * const mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 8470 | if (mg) |
565764a8 | 8471 | mg->mg_len &= ~1; |
36477c24 | 8472 | } |
bbce6d69 | 8473 | } |
8474 | ||
645c22ef DM |
8475 | /* |
8476 | =for apidoc sv_tainted | |
8477 | ||
8478 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
8479 | =cut | |
8480 | */ | |
8481 | ||
bbce6d69 | 8482 | bool |
864dbfa3 | 8483 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 8484 | { |
13f57bf8 | 8485 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
a28509cc | 8486 | MAGIC * const mg = mg_find(sv, PERL_MAGIC_taint); |
2ddb8a4f | 8487 | if (mg && (mg->mg_len & 1) ) |
36477c24 | 8488 | return TRUE; |
8489 | } | |
8490 | return FALSE; | |
bbce6d69 | 8491 | } |
8492 | ||
09540bc3 JH |
8493 | /* |
8494 | =for apidoc sv_setpviv | |
8495 | ||
8496 | Copies an integer into the given SV, also updating its string value. | |
8497 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
8498 | ||
8499 | =cut | |
8500 | */ | |
8501 | ||
8502 | void | |
8503 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) | |
8504 | { | |
8505 | char buf[TYPE_CHARS(UV)]; | |
8506 | char *ebuf; | |
b64e5050 | 8507 | char * const ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); |
09540bc3 JH |
8508 | |
8509 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8510 | } | |
8511 | ||
8512 | /* | |
8513 | =for apidoc sv_setpviv_mg | |
8514 | ||
8515 | Like C<sv_setpviv>, but also handles 'set' magic. | |
8516 | ||
8517 | =cut | |
8518 | */ | |
8519 | ||
8520 | void | |
8521 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) | |
8522 | { | |
8523 | char buf[TYPE_CHARS(UV)]; | |
8524 | char *ebuf; | |
b64e5050 | 8525 | char * const ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); |
09540bc3 JH |
8526 | |
8527 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8528 | SvSETMAGIC(sv); | |
8529 | } | |
8530 | ||
cea2e8a9 | 8531 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8532 | |
8533 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8534 | * version of the main function, (which may itself be aliased to us). | |
8535 | * Don't access this version directly. | |
8536 | */ | |
8537 | ||
cea2e8a9 GS |
8538 | void |
8539 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
8540 | { | |
8541 | dTHX; | |
8542 | va_list args; | |
8543 | va_start(args, pat); | |
c5be433b | 8544 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
8545 | va_end(args); |
8546 | } | |
8547 | ||
645c22ef DM |
8548 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8549 | * version of the main function, (which may itself be aliased to us). | |
8550 | * Don't access this version directly. | |
8551 | */ | |
cea2e8a9 GS |
8552 | |
8553 | void | |
8554 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8555 | { | |
8556 | dTHX; | |
8557 | va_list args; | |
8558 | va_start(args, pat); | |
c5be433b | 8559 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 8560 | va_end(args); |
cea2e8a9 GS |
8561 | } |
8562 | #endif | |
8563 | ||
954c1994 GS |
8564 | /* |
8565 | =for apidoc sv_setpvf | |
8566 | ||
bffc3d17 SH |
8567 | Works like C<sv_catpvf> but copies the text into the SV instead of |
8568 | appending it. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
954c1994 GS |
8569 | |
8570 | =cut | |
8571 | */ | |
8572 | ||
46fc3d4c | 8573 | void |
864dbfa3 | 8574 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8575 | { |
8576 | va_list args; | |
46fc3d4c | 8577 | va_start(args, pat); |
c5be433b | 8578 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 8579 | va_end(args); |
8580 | } | |
8581 | ||
bffc3d17 SH |
8582 | /* |
8583 | =for apidoc sv_vsetpvf | |
8584 | ||
8585 | Works like C<sv_vcatpvf> but copies the text into the SV instead of | |
8586 | appending it. Does not handle 'set' magic. See C<sv_vsetpvf_mg>. | |
8587 | ||
8588 | Usually used via its frontend C<sv_setpvf>. | |
8589 | ||
8590 | =cut | |
8591 | */ | |
645c22ef | 8592 | |
c5be433b GS |
8593 | void |
8594 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
8595 | { | |
8596 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8597 | } | |
ef50df4b | 8598 | |
954c1994 GS |
8599 | /* |
8600 | =for apidoc sv_setpvf_mg | |
8601 | ||
8602 | Like C<sv_setpvf>, but also handles 'set' magic. | |
8603 | ||
8604 | =cut | |
8605 | */ | |
8606 | ||
ef50df4b | 8607 | void |
864dbfa3 | 8608 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8609 | { |
8610 | va_list args; | |
ef50df4b | 8611 | va_start(args, pat); |
c5be433b | 8612 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 8613 | va_end(args); |
c5be433b GS |
8614 | } |
8615 | ||
bffc3d17 SH |
8616 | /* |
8617 | =for apidoc sv_vsetpvf_mg | |
8618 | ||
8619 | Like C<sv_vsetpvf>, but also handles 'set' magic. | |
8620 | ||
8621 | Usually used via its frontend C<sv_setpvf_mg>. | |
8622 | ||
8623 | =cut | |
8624 | */ | |
645c22ef | 8625 | |
c5be433b GS |
8626 | void |
8627 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8628 | { | |
8629 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8630 | SvSETMAGIC(sv); |
8631 | } | |
8632 | ||
cea2e8a9 | 8633 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8634 | |
8635 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8636 | * version of the main function, (which may itself be aliased to us). | |
8637 | * Don't access this version directly. | |
8638 | */ | |
8639 | ||
cea2e8a9 GS |
8640 | void |
8641 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
8642 | { | |
8643 | dTHX; | |
8644 | va_list args; | |
8645 | va_start(args, pat); | |
c5be433b | 8646 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
8647 | va_end(args); |
8648 | } | |
8649 | ||
645c22ef DM |
8650 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8651 | * version of the main function, (which may itself be aliased to us). | |
8652 | * Don't access this version directly. | |
8653 | */ | |
8654 | ||
cea2e8a9 GS |
8655 | void |
8656 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8657 | { | |
8658 | dTHX; | |
8659 | va_list args; | |
8660 | va_start(args, pat); | |
c5be433b | 8661 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 8662 | va_end(args); |
cea2e8a9 GS |
8663 | } |
8664 | #endif | |
8665 | ||
954c1994 GS |
8666 | /* |
8667 | =for apidoc sv_catpvf | |
8668 | ||
d5ce4a7c GA |
8669 | Processes its arguments like C<sprintf> and appends the formatted |
8670 | output to an SV. If the appended data contains "wide" characters | |
8671 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
8672 | and characters >255 formatted with %c), the original SV might get | |
bffc3d17 | 8673 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. See |
cdd94ca7 NC |
8674 | C<sv_catpvf_mg>. If the original SV was UTF-8, the pattern should be |
8675 | valid UTF-8; if the original SV was bytes, the pattern should be too. | |
954c1994 | 8676 | |
d5ce4a7c | 8677 | =cut */ |
954c1994 | 8678 | |
46fc3d4c | 8679 | void |
864dbfa3 | 8680 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8681 | { |
8682 | va_list args; | |
46fc3d4c | 8683 | va_start(args, pat); |
c5be433b | 8684 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 8685 | va_end(args); |
8686 | } | |
8687 | ||
bffc3d17 SH |
8688 | /* |
8689 | =for apidoc sv_vcatpvf | |
8690 | ||
8691 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8692 | to an SV. Does not handle 'set' magic. See C<sv_vcatpvf_mg>. | |
8693 | ||
8694 | Usually used via its frontend C<sv_catpvf>. | |
8695 | ||
8696 | =cut | |
8697 | */ | |
645c22ef | 8698 | |
ef50df4b | 8699 | void |
c5be433b GS |
8700 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
8701 | { | |
8702 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8703 | } | |
8704 | ||
954c1994 GS |
8705 | /* |
8706 | =for apidoc sv_catpvf_mg | |
8707 | ||
8708 | Like C<sv_catpvf>, but also handles 'set' magic. | |
8709 | ||
8710 | =cut | |
8711 | */ | |
8712 | ||
c5be433b | 8713 | void |
864dbfa3 | 8714 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8715 | { |
8716 | va_list args; | |
ef50df4b | 8717 | va_start(args, pat); |
c5be433b | 8718 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 8719 | va_end(args); |
c5be433b GS |
8720 | } |
8721 | ||
bffc3d17 SH |
8722 | /* |
8723 | =for apidoc sv_vcatpvf_mg | |
8724 | ||
8725 | Like C<sv_vcatpvf>, but also handles 'set' magic. | |
8726 | ||
8727 | Usually used via its frontend C<sv_catpvf_mg>. | |
8728 | ||
8729 | =cut | |
8730 | */ | |
645c22ef | 8731 | |
c5be433b GS |
8732 | void |
8733 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8734 | { | |
8735 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8736 | SvSETMAGIC(sv); |
8737 | } | |
8738 | ||
954c1994 GS |
8739 | /* |
8740 | =for apidoc sv_vsetpvfn | |
8741 | ||
bffc3d17 | 8742 | Works like C<sv_vcatpvfn> but copies the text into the SV instead of |
954c1994 GS |
8743 | appending it. |
8744 | ||
bffc3d17 | 8745 | Usually used via one of its frontends C<sv_vsetpvf> and C<sv_vsetpvf_mg>. |
645c22ef | 8746 | |
954c1994 GS |
8747 | =cut |
8748 | */ | |
8749 | ||
46fc3d4c | 8750 | void |
7d5ea4e7 | 8751 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8752 | { |
8753 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 8754 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 8755 | } |
8756 | ||
645c22ef DM |
8757 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
8758 | ||
2d00ba3b | 8759 | STATIC I32 |
9dd79c3f | 8760 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
8761 | { |
8762 | I32 var = 0; | |
8763 | switch (**pattern) { | |
8764 | case '1': case '2': case '3': | |
8765 | case '4': case '5': case '6': | |
8766 | case '7': case '8': case '9': | |
8767 | while (isDIGIT(**pattern)) | |
8768 | var = var * 10 + (*(*pattern)++ - '0'); | |
8769 | } | |
8770 | return var; | |
8771 | } | |
9dd79c3f | 8772 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 8773 | |
4151a5fe IZ |
8774 | static char * |
8775 | F0convert(NV nv, char *endbuf, STRLEN *len) | |
8776 | { | |
a3b680e6 | 8777 | const int neg = nv < 0; |
4151a5fe | 8778 | UV uv; |
4151a5fe IZ |
8779 | |
8780 | if (neg) | |
8781 | nv = -nv; | |
8782 | if (nv < UV_MAX) { | |
b464bac0 | 8783 | char *p = endbuf; |
4151a5fe | 8784 | nv += 0.5; |
028f8eaa | 8785 | uv = (UV)nv; |
4151a5fe IZ |
8786 | if (uv & 1 && uv == nv) |
8787 | uv--; /* Round to even */ | |
8788 | do { | |
a3b680e6 | 8789 | const unsigned dig = uv % 10; |
4151a5fe IZ |
8790 | *--p = '0' + dig; |
8791 | } while (uv /= 10); | |
8792 | if (neg) | |
8793 | *--p = '-'; | |
8794 | *len = endbuf - p; | |
8795 | return p; | |
8796 | } | |
8797 | return Nullch; | |
8798 | } | |
8799 | ||
8800 | ||
954c1994 GS |
8801 | /* |
8802 | =for apidoc sv_vcatpvfn | |
8803 | ||
8804 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8805 | to an SV. Uses an array of SVs if the C style variable argument list is | |
8806 | missing (NULL). When running with taint checks enabled, indicates via | |
8807 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
8808 | locales). | |
8809 | ||
bffc3d17 | 8810 | Usually used via one of its frontends C<sv_vcatpvf> and C<sv_vcatpvf_mg>. |
645c22ef | 8811 | |
954c1994 GS |
8812 | =cut |
8813 | */ | |
8814 | ||
8896765a RB |
8815 | |
8816 | #define VECTORIZE_ARGS vecsv = va_arg(*args, SV*);\ | |
8817 | vecstr = (U8*)SvPV_const(vecsv,veclen);\ | |
8818 | vec_utf8 = DO_UTF8(vecsv); | |
8819 | ||
1ef29b0e RGS |
8820 | /* XXX maybe_tainted is never assigned to, so the doc above is lying. */ |
8821 | ||
46fc3d4c | 8822 | void |
7d5ea4e7 | 8823 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 8824 | { |
8825 | char *p; | |
8826 | char *q; | |
a3b680e6 | 8827 | const char *patend; |
fc36a67e | 8828 | STRLEN origlen; |
46fc3d4c | 8829 | I32 svix = 0; |
27da23d5 | 8830 | static const char nullstr[] = "(null)"; |
9c5ffd7c | 8831 | SV *argsv = Nullsv; |
b464bac0 AL |
8832 | bool has_utf8 = DO_UTF8(sv); /* has the result utf8? */ |
8833 | const bool pat_utf8 = has_utf8; /* the pattern is in utf8? */ | |
db79b45b | 8834 | SV *nsv = Nullsv; |
4151a5fe IZ |
8835 | /* Times 4: a decimal digit takes more than 3 binary digits. |
8836 | * NV_DIG: mantissa takes than many decimal digits. | |
8837 | * Plus 32: Playing safe. */ | |
8838 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
8839 | /* large enough for "%#.#f" --chip */ | |
8840 | /* what about long double NVs? --jhi */ | |
db79b45b | 8841 | |
53c1dcc0 AL |
8842 | PERL_UNUSED_ARG(maybe_tainted); |
8843 | ||
46fc3d4c | 8844 | /* no matter what, this is a string now */ |
fc36a67e | 8845 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 8846 | |
8896765a | 8847 | /* special-case "", "%s", and "%-p" (SVf - see below) */ |
46fc3d4c | 8848 | if (patlen == 0) |
8849 | return; | |
0dbb1585 | 8850 | if (patlen == 2 && pat[0] == '%' && pat[1] == 's') { |
2d03de9c AL |
8851 | if (args) { |
8852 | const char * const s = va_arg(*args, char*); | |
8853 | sv_catpv(sv, s ? s : nullstr); | |
8854 | } | |
8855 | else if (svix < svmax) { | |
8856 | sv_catsv(sv, *svargs); | |
8857 | if (DO_UTF8(*svargs)) | |
8858 | SvUTF8_on(sv); | |
8859 | } | |
8860 | return; | |
0dbb1585 | 8861 | } |
8896765a RB |
8862 | if (args && patlen == 3 && pat[0] == '%' && |
8863 | pat[1] == '-' && pat[2] == 'p') { | |
8864 | argsv = va_arg(*args, SV*); | |
8865 | sv_catsv(sv, argsv); | |
8866 | if (DO_UTF8(argsv)) | |
8867 | SvUTF8_on(sv); | |
8868 | return; | |
46fc3d4c | 8869 | } |
8870 | ||
1d917b39 | 8871 | #ifndef USE_LONG_DOUBLE |
4151a5fe | 8872 | /* special-case "%.<number>[gf]" */ |
7af36d83 | 8873 | if ( !args && patlen <= 5 && pat[0] == '%' && pat[1] == '.' |
4151a5fe IZ |
8874 | && (pat[patlen-1] == 'g' || pat[patlen-1] == 'f') ) { |
8875 | unsigned digits = 0; | |
8876 | const char *pp; | |
8877 | ||
8878 | pp = pat + 2; | |
8879 | while (*pp >= '0' && *pp <= '9') | |
8880 | digits = 10 * digits + (*pp++ - '0'); | |
028f8eaa | 8881 | if (pp - pat == (int)patlen - 1) { |
4151a5fe IZ |
8882 | NV nv; |
8883 | ||
7af36d83 | 8884 | if (svix < svmax) |
4151a5fe IZ |
8885 | nv = SvNV(*svargs); |
8886 | else | |
8887 | return; | |
8888 | if (*pp == 'g') { | |
2873255c NC |
8889 | /* Add check for digits != 0 because it seems that some |
8890 | gconverts are buggy in this case, and we don't yet have | |
8891 | a Configure test for this. */ | |
8892 | if (digits && digits < sizeof(ebuf) - NV_DIG - 10) { | |
8893 | /* 0, point, slack */ | |
2e59c212 | 8894 | Gconvert(nv, (int)digits, 0, ebuf); |
4151a5fe IZ |
8895 | sv_catpv(sv, ebuf); |
8896 | if (*ebuf) /* May return an empty string for digits==0 */ | |
8897 | return; | |
8898 | } | |
8899 | } else if (!digits) { | |
8900 | STRLEN l; | |
8901 | ||
8902 | if ((p = F0convert(nv, ebuf + sizeof ebuf, &l))) { | |
8903 | sv_catpvn(sv, p, l); | |
8904 | return; | |
8905 | } | |
8906 | } | |
8907 | } | |
8908 | } | |
1d917b39 | 8909 | #endif /* !USE_LONG_DOUBLE */ |
4151a5fe | 8910 | |
2cf2cfc6 | 8911 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
205f51d8 | 8912 | has_utf8 = TRUE; |
2cf2cfc6 | 8913 | |
46fc3d4c | 8914 | patend = (char*)pat + patlen; |
8915 | for (p = (char*)pat; p < patend; p = q) { | |
8916 | bool alt = FALSE; | |
8917 | bool left = FALSE; | |
b22c7a20 | 8918 | bool vectorize = FALSE; |
211dfcf1 | 8919 | bool vectorarg = FALSE; |
2cf2cfc6 | 8920 | bool vec_utf8 = FALSE; |
46fc3d4c | 8921 | char fill = ' '; |
8922 | char plus = 0; | |
8923 | char intsize = 0; | |
8924 | STRLEN width = 0; | |
fc36a67e | 8925 | STRLEN zeros = 0; |
46fc3d4c | 8926 | bool has_precis = FALSE; |
8927 | STRLEN precis = 0; | |
58e33a90 | 8928 | I32 osvix = svix; |
2cf2cfc6 | 8929 | bool is_utf8 = FALSE; /* is this item utf8? */ |
20f6aaab AS |
8930 | #ifdef HAS_LDBL_SPRINTF_BUG |
8931 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
205f51d8 | 8932 | with sfio - Allen <allens@cpan.org> */ |
20f6aaab AS |
8933 | bool fix_ldbl_sprintf_bug = FALSE; |
8934 | #endif | |
205f51d8 | 8935 | |
46fc3d4c | 8936 | char esignbuf[4]; |
89ebb4a3 | 8937 | U8 utf8buf[UTF8_MAXBYTES+1]; |
46fc3d4c | 8938 | STRLEN esignlen = 0; |
8939 | ||
4d84ee25 | 8940 | const char *eptr = Nullch; |
fc36a67e | 8941 | STRLEN elen = 0; |
81f715da | 8942 | SV *vecsv = Nullsv; |
245d4a47 | 8943 | const U8 *vecstr = Null(U8*); |
b22c7a20 | 8944 | STRLEN veclen = 0; |
934abaf1 | 8945 | char c = 0; |
46fc3d4c | 8946 | int i; |
9c5ffd7c | 8947 | unsigned base = 0; |
8c8eb53c RB |
8948 | IV iv = 0; |
8949 | UV uv = 0; | |
9e5b023a JH |
8950 | /* we need a long double target in case HAS_LONG_DOUBLE but |
8951 | not USE_LONG_DOUBLE | |
8952 | */ | |
35fff930 | 8953 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
8954 | long double nv; |
8955 | #else | |
65202027 | 8956 | NV nv; |
9e5b023a | 8957 | #endif |
46fc3d4c | 8958 | STRLEN have; |
8959 | STRLEN need; | |
8960 | STRLEN gap; | |
7af36d83 | 8961 | const char *dotstr = "."; |
b22c7a20 | 8962 | STRLEN dotstrlen = 1; |
211dfcf1 | 8963 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 8964 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
8965 | I32 epix = 0; /* explicit precision index */ |
8966 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 8967 | bool asterisk = FALSE; |
46fc3d4c | 8968 | |
211dfcf1 | 8969 | /* echo everything up to the next format specification */ |
46fc3d4c | 8970 | for (q = p; q < patend && *q != '%'; ++q) ; |
8971 | if (q > p) { | |
db79b45b JH |
8972 | if (has_utf8 && !pat_utf8) |
8973 | sv_catpvn_utf8_upgrade(sv, p, q - p, nsv); | |
8974 | else | |
8975 | sv_catpvn(sv, p, q - p); | |
46fc3d4c | 8976 | p = q; |
8977 | } | |
8978 | if (q++ >= patend) | |
8979 | break; | |
8980 | ||
211dfcf1 HS |
8981 | /* |
8982 | We allow format specification elements in this order: | |
8983 | \d+\$ explicit format parameter index | |
8984 | [-+ 0#]+ flags | |
a472f209 | 8985 | v|\*(\d+\$)?v vector with optional (optionally specified) arg |
f3583277 | 8986 | 0 flag (as above): repeated to allow "v02" |
211dfcf1 HS |
8987 | \d+|\*(\d+\$)? width using optional (optionally specified) arg |
8988 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
8989 | [hlqLV] size | |
8896765a RB |
8990 | [%bcdefginopsuxDFOUX] format (mandatory) |
8991 | */ | |
8992 | ||
8993 | if (args) { | |
8994 | /* | |
8995 | As of perl5.9.3, printf format checking is on by default. | |
8996 | Internally, perl uses %p formats to provide an escape to | |
8997 | some extended formatting. This block deals with those | |
8998 | extensions: if it does not match, (char*)q is reset and | |
8999 | the normal format processing code is used. | |
9000 | ||
9001 | Currently defined extensions are: | |
9002 | %p include pointer address (standard) | |
9003 | %-p (SVf) include an SV (previously %_) | |
9004 | %-<num>p include an SV with precision <num> | |
9005 | %1p (VDf) include a v-string (as %vd) | |
9006 | %<num>p reserved for future extensions | |
9007 | ||
9008 | Robin Barker 2005-07-14 | |
211dfcf1 | 9009 | */ |
8896765a RB |
9010 | char* r = q; |
9011 | bool sv = FALSE; | |
9012 | STRLEN n = 0; | |
9013 | if (*q == '-') | |
9014 | sv = *q++; | |
9015 | EXPECT_NUMBER(q, n); | |
9016 | if (*q++ == 'p') { | |
9017 | if (sv) { /* SVf */ | |
9018 | if (n) { | |
9019 | precis = n; | |
9020 | has_precis = TRUE; | |
9021 | } | |
9022 | argsv = va_arg(*args, SV*); | |
9023 | eptr = SvPVx_const(argsv, elen); | |
9024 | if (DO_UTF8(argsv)) | |
9025 | is_utf8 = TRUE; | |
9026 | goto string; | |
9027 | } | |
9028 | #if vdNUMBER | |
9029 | else if (n == vdNUMBER) { /* VDf */ | |
9030 | vectorize = TRUE; | |
9031 | VECTORIZE_ARGS | |
9032 | goto format_vd; | |
9033 | } | |
9034 | #endif | |
9035 | else if (n) { | |
9036 | if (ckWARN_d(WARN_INTERNAL)) | |
9037 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), | |
9038 | "internal %%<num>p might conflict with future printf extensions"); | |
9039 | } | |
9040 | } | |
9041 | q = r; | |
9042 | } | |
9043 | ||
211dfcf1 HS |
9044 | if (EXPECT_NUMBER(q, width)) { |
9045 | if (*q == '$') { | |
9046 | ++q; | |
9047 | efix = width; | |
9048 | } else { | |
9049 | goto gotwidth; | |
9050 | } | |
9051 | } | |
9052 | ||
fc36a67e | 9053 | /* FLAGS */ |
9054 | ||
46fc3d4c | 9055 | while (*q) { |
9056 | switch (*q) { | |
9057 | case ' ': | |
9058 | case '+': | |
9059 | plus = *q++; | |
9060 | continue; | |
9061 | ||
9062 | case '-': | |
9063 | left = TRUE; | |
9064 | q++; | |
9065 | continue; | |
9066 | ||
9067 | case '0': | |
9068 | fill = *q++; | |
9069 | continue; | |
9070 | ||
9071 | case '#': | |
9072 | alt = TRUE; | |
9073 | q++; | |
9074 | continue; | |
9075 | ||
fc36a67e | 9076 | default: |
9077 | break; | |
9078 | } | |
9079 | break; | |
9080 | } | |
46fc3d4c | 9081 | |
211dfcf1 | 9082 | tryasterisk: |
eb3fce90 | 9083 | if (*q == '*') { |
211dfcf1 HS |
9084 | q++; |
9085 | if (EXPECT_NUMBER(q, ewix)) | |
9086 | if (*q++ != '$') | |
9087 | goto unknown; | |
eb3fce90 | 9088 | asterisk = TRUE; |
211dfcf1 HS |
9089 | } |
9090 | if (*q == 'v') { | |
eb3fce90 | 9091 | q++; |
211dfcf1 HS |
9092 | if (vectorize) |
9093 | goto unknown; | |
9cbac4c7 | 9094 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
9095 | evix = ewix; |
9096 | ewix = 0; | |
9097 | asterisk = FALSE; | |
9098 | } | |
9099 | vectorize = TRUE; | |
9100 | goto tryasterisk; | |
eb3fce90 JH |
9101 | } |
9102 | ||
211dfcf1 | 9103 | if (!asterisk) |
858a90f9 | 9104 | { |
7a5fa8a2 | 9105 | if( *q == '0' ) |
f3583277 | 9106 | fill = *q++; |
211dfcf1 | 9107 | EXPECT_NUMBER(q, width); |
858a90f9 | 9108 | } |
211dfcf1 HS |
9109 | |
9110 | if (vectorize) { | |
9111 | if (vectorarg) { | |
9112 | if (args) | |
9113 | vecsv = va_arg(*args, SV*); | |
9114 | else | |
9115 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
3a7a539e | 9116 | svargs[evix ? evix-1 : svix++] : &PL_sv_undef; |
245d4a47 | 9117 | dotstr = SvPV_const(vecsv, dotstrlen); |
211dfcf1 | 9118 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 9119 | is_utf8 = TRUE; |
211dfcf1 HS |
9120 | } |
9121 | if (args) { | |
8896765a | 9122 | VECTORIZE_ARGS |
eb3fce90 | 9123 | } |
211dfcf1 HS |
9124 | else if (efix ? efix <= svmax : svix < svmax) { |
9125 | vecsv = svargs[efix ? efix-1 : svix++]; | |
245d4a47 | 9126 | vecstr = (U8*)SvPV_const(vecsv,veclen); |
2cf2cfc6 | 9127 | vec_utf8 = DO_UTF8(vecsv); |
d7aa5382 | 9128 | /* if this is a version object, we need to return the |
3f7c398e | 9129 | * stringified representation (which the SvPVX_const has |
d7aa5382 JP |
9130 | * already done for us), but not vectorize the args |
9131 | */ | |
9132 | if ( *q == 'd' && sv_derived_from(vecsv,"version") ) | |
9133 | { | |
9134 | q++; /* skip past the rest of the %vd format */ | |
245d4a47 | 9135 | eptr = (const char *) vecstr; |
d7aa5382 JP |
9136 | elen = strlen(eptr); |
9137 | vectorize=FALSE; | |
9138 | goto string; | |
9139 | } | |
211dfcf1 HS |
9140 | } |
9141 | else { | |
9142 | vecstr = (U8*)""; | |
9143 | veclen = 0; | |
9144 | } | |
eb3fce90 | 9145 | } |
fc36a67e | 9146 | |
eb3fce90 | 9147 | if (asterisk) { |
fc36a67e | 9148 | if (args) |
9149 | i = va_arg(*args, int); | |
9150 | else | |
eb3fce90 JH |
9151 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
9152 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 9153 | left |= (i < 0); |
9154 | width = (i < 0) ? -i : i; | |
fc36a67e | 9155 | } |
211dfcf1 | 9156 | gotwidth: |
fc36a67e | 9157 | |
9158 | /* PRECISION */ | |
46fc3d4c | 9159 | |
fc36a67e | 9160 | if (*q == '.') { |
9161 | q++; | |
9162 | if (*q == '*') { | |
211dfcf1 | 9163 | q++; |
7b8dd722 HS |
9164 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') |
9165 | goto unknown; | |
9166 | /* XXX: todo, support specified precision parameter */ | |
9167 | if (epix) | |
211dfcf1 | 9168 | goto unknown; |
46fc3d4c | 9169 | if (args) |
9170 | i = va_arg(*args, int); | |
9171 | else | |
eb3fce90 JH |
9172 | i = (ewix ? ewix <= svmax : svix < svmax) |
9173 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 9174 | precis = (i < 0) ? 0 : i; |
fc36a67e | 9175 | } |
9176 | else { | |
9177 | precis = 0; | |
9178 | while (isDIGIT(*q)) | |
9179 | precis = precis * 10 + (*q++ - '0'); | |
9180 | } | |
9181 | has_precis = TRUE; | |
9182 | } | |
46fc3d4c | 9183 | |
fc36a67e | 9184 | /* SIZE */ |
46fc3d4c | 9185 | |
fc36a67e | 9186 | switch (*q) { |
c623ac67 GS |
9187 | #ifdef WIN32 |
9188 | case 'I': /* Ix, I32x, and I64x */ | |
9189 | # ifdef WIN64 | |
9190 | if (q[1] == '6' && q[2] == '4') { | |
9191 | q += 3; | |
9192 | intsize = 'q'; | |
9193 | break; | |
9194 | } | |
9195 | # endif | |
9196 | if (q[1] == '3' && q[2] == '2') { | |
9197 | q += 3; | |
9198 | break; | |
9199 | } | |
9200 | # ifdef WIN64 | |
9201 | intsize = 'q'; | |
9202 | # endif | |
9203 | q++; | |
9204 | break; | |
9205 | #endif | |
9e5b023a | 9206 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 9207 | case 'L': /* Ld */ |
e5c81feb | 9208 | /* FALL THROUGH */ |
e5c81feb | 9209 | #ifdef HAS_QUAD |
6f9bb7fd | 9210 | case 'q': /* qd */ |
9e5b023a | 9211 | #endif |
6f9bb7fd GS |
9212 | intsize = 'q'; |
9213 | q++; | |
9214 | break; | |
9215 | #endif | |
fc36a67e | 9216 | case 'l': |
9e5b023a | 9217 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
205f51d8 | 9218 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 9219 | intsize = 'q'; |
9220 | q += 2; | |
46fc3d4c | 9221 | break; |
cf2093f6 | 9222 | } |
fc36a67e | 9223 | #endif |
6f9bb7fd | 9224 | /* FALL THROUGH */ |
fc36a67e | 9225 | case 'h': |
cf2093f6 | 9226 | /* FALL THROUGH */ |
fc36a67e | 9227 | case 'V': |
9228 | intsize = *q++; | |
46fc3d4c | 9229 | break; |
9230 | } | |
9231 | ||
fc36a67e | 9232 | /* CONVERSION */ |
9233 | ||
211dfcf1 HS |
9234 | if (*q == '%') { |
9235 | eptr = q++; | |
9236 | elen = 1; | |
9237 | goto string; | |
9238 | } | |
9239 | ||
be75b157 HS |
9240 | if (vectorize) |
9241 | argsv = vecsv; | |
9242 | else if (!args) | |
211dfcf1 HS |
9243 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
9244 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
9245 | ||
46fc3d4c | 9246 | switch (c = *q++) { |
9247 | ||
9248 | /* STRINGS */ | |
9249 | ||
46fc3d4c | 9250 | case 'c': |
be75b157 | 9251 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
9252 | if ((uv > 255 || |
9253 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 9254 | && !IN_BYTES) { |
dfe13c55 | 9255 | eptr = (char*)utf8buf; |
9041c2e3 | 9256 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 9257 | is_utf8 = TRUE; |
7e2040f0 GS |
9258 | } |
9259 | else { | |
9260 | c = (char)uv; | |
9261 | eptr = &c; | |
9262 | elen = 1; | |
a0ed51b3 | 9263 | } |
46fc3d4c | 9264 | goto string; |
9265 | ||
46fc3d4c | 9266 | case 's': |
be75b157 | 9267 | if (args && !vectorize) { |
fc36a67e | 9268 | eptr = va_arg(*args, char*); |
c635e13b | 9269 | if (eptr) |
1d7c1841 GS |
9270 | #ifdef MACOS_TRADITIONAL |
9271 | /* On MacOS, %#s format is used for Pascal strings */ | |
9272 | if (alt) | |
9273 | elen = *eptr++; | |
9274 | else | |
9275 | #endif | |
c635e13b | 9276 | elen = strlen(eptr); |
9277 | else { | |
27da23d5 | 9278 | eptr = (char *)nullstr; |
c635e13b | 9279 | elen = sizeof nullstr - 1; |
9280 | } | |
46fc3d4c | 9281 | } |
211dfcf1 | 9282 | else { |
4d84ee25 | 9283 | eptr = SvPVx_const(argsv, elen); |
7e2040f0 | 9284 | if (DO_UTF8(argsv)) { |
a0ed51b3 LW |
9285 | if (has_precis && precis < elen) { |
9286 | I32 p = precis; | |
7e2040f0 | 9287 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
9288 | precis = p; |
9289 | } | |
9290 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 9291 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 9292 | } |
2cf2cfc6 | 9293 | is_utf8 = TRUE; |
a0ed51b3 LW |
9294 | } |
9295 | } | |
fc36a67e | 9296 | |
46fc3d4c | 9297 | string: |
b22c7a20 | 9298 | vectorize = FALSE; |
46fc3d4c | 9299 | if (has_precis && elen > precis) |
9300 | elen = precis; | |
9301 | break; | |
9302 | ||
9303 | /* INTEGERS */ | |
9304 | ||
fc36a67e | 9305 | case 'p': |
be75b157 | 9306 | if (alt || vectorize) |
c2e66d9e | 9307 | goto unknown; |
211dfcf1 | 9308 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 9309 | base = 16; |
9310 | goto integer; | |
9311 | ||
46fc3d4c | 9312 | case 'D': |
29fe7a80 | 9313 | #ifdef IV_IS_QUAD |
22f3ae8c | 9314 | intsize = 'q'; |
29fe7a80 | 9315 | #else |
46fc3d4c | 9316 | intsize = 'l'; |
29fe7a80 | 9317 | #endif |
46fc3d4c | 9318 | /* FALL THROUGH */ |
9319 | case 'd': | |
9320 | case 'i': | |
8896765a RB |
9321 | #if vdNUMBER |
9322 | format_vd: | |
9323 | #endif | |
b22c7a20 | 9324 | if (vectorize) { |
ba210ebe | 9325 | STRLEN ulen; |
211dfcf1 HS |
9326 | if (!veclen) |
9327 | continue; | |
2cf2cfc6 A |
9328 | if (vec_utf8) |
9329 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
9330 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 9331 | else { |
e83d50c9 | 9332 | uv = *vecstr; |
b22c7a20 GS |
9333 | ulen = 1; |
9334 | } | |
9335 | vecstr += ulen; | |
9336 | veclen -= ulen; | |
e83d50c9 JP |
9337 | if (plus) |
9338 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
9339 | } |
9340 | else if (args) { | |
46fc3d4c | 9341 | switch (intsize) { |
9342 | case 'h': iv = (short)va_arg(*args, int); break; | |
46fc3d4c | 9343 | case 'l': iv = va_arg(*args, long); break; |
fc36a67e | 9344 | case 'V': iv = va_arg(*args, IV); break; |
b10c0dba | 9345 | default: iv = va_arg(*args, int); break; |
cf2093f6 JH |
9346 | #ifdef HAS_QUAD |
9347 | case 'q': iv = va_arg(*args, Quad_t); break; | |
9348 | #endif | |
46fc3d4c | 9349 | } |
9350 | } | |
9351 | else { | |
b10c0dba | 9352 | IV tiv = SvIVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 9353 | switch (intsize) { |
b10c0dba MHM |
9354 | case 'h': iv = (short)tiv; break; |
9355 | case 'l': iv = (long)tiv; break; | |
9356 | case 'V': | |
9357 | default: iv = tiv; break; | |
cf2093f6 | 9358 | #ifdef HAS_QUAD |
b10c0dba | 9359 | case 'q': iv = (Quad_t)tiv; break; |
cf2093f6 | 9360 | #endif |
46fc3d4c | 9361 | } |
9362 | } | |
e83d50c9 JP |
9363 | if ( !vectorize ) /* we already set uv above */ |
9364 | { | |
9365 | if (iv >= 0) { | |
9366 | uv = iv; | |
9367 | if (plus) | |
9368 | esignbuf[esignlen++] = plus; | |
9369 | } | |
9370 | else { | |
9371 | uv = -iv; | |
9372 | esignbuf[esignlen++] = '-'; | |
9373 | } | |
46fc3d4c | 9374 | } |
9375 | base = 10; | |
9376 | goto integer; | |
9377 | ||
fc36a67e | 9378 | case 'U': |
29fe7a80 | 9379 | #ifdef IV_IS_QUAD |
22f3ae8c | 9380 | intsize = 'q'; |
29fe7a80 | 9381 | #else |
fc36a67e | 9382 | intsize = 'l'; |
29fe7a80 | 9383 | #endif |
fc36a67e | 9384 | /* FALL THROUGH */ |
9385 | case 'u': | |
9386 | base = 10; | |
9387 | goto uns_integer; | |
9388 | ||
4f19785b WSI |
9389 | case 'b': |
9390 | base = 2; | |
9391 | goto uns_integer; | |
9392 | ||
46fc3d4c | 9393 | case 'O': |
29fe7a80 | 9394 | #ifdef IV_IS_QUAD |
22f3ae8c | 9395 | intsize = 'q'; |
29fe7a80 | 9396 | #else |
46fc3d4c | 9397 | intsize = 'l'; |
29fe7a80 | 9398 | #endif |
46fc3d4c | 9399 | /* FALL THROUGH */ |
9400 | case 'o': | |
9401 | base = 8; | |
9402 | goto uns_integer; | |
9403 | ||
9404 | case 'X': | |
46fc3d4c | 9405 | case 'x': |
9406 | base = 16; | |
46fc3d4c | 9407 | |
9408 | uns_integer: | |
b22c7a20 | 9409 | if (vectorize) { |
ba210ebe | 9410 | STRLEN ulen; |
b22c7a20 | 9411 | vector: |
211dfcf1 HS |
9412 | if (!veclen) |
9413 | continue; | |
2cf2cfc6 A |
9414 | if (vec_utf8) |
9415 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
9416 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 9417 | else { |
a05b299f | 9418 | uv = *vecstr; |
b22c7a20 GS |
9419 | ulen = 1; |
9420 | } | |
9421 | vecstr += ulen; | |
9422 | veclen -= ulen; | |
9423 | } | |
9424 | else if (args) { | |
46fc3d4c | 9425 | switch (intsize) { |
9426 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
46fc3d4c | 9427 | case 'l': uv = va_arg(*args, unsigned long); break; |
fc36a67e | 9428 | case 'V': uv = va_arg(*args, UV); break; |
b10c0dba | 9429 | default: uv = va_arg(*args, unsigned); break; |
cf2093f6 | 9430 | #ifdef HAS_QUAD |
9e3321a5 | 9431 | case 'q': uv = va_arg(*args, Uquad_t); break; |
cf2093f6 | 9432 | #endif |
46fc3d4c | 9433 | } |
9434 | } | |
9435 | else { | |
b10c0dba | 9436 | UV tuv = SvUVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 9437 | switch (intsize) { |
b10c0dba MHM |
9438 | case 'h': uv = (unsigned short)tuv; break; |
9439 | case 'l': uv = (unsigned long)tuv; break; | |
9440 | case 'V': | |
9441 | default: uv = tuv; break; | |
cf2093f6 | 9442 | #ifdef HAS_QUAD |
b10c0dba | 9443 | case 'q': uv = (Uquad_t)tuv; break; |
cf2093f6 | 9444 | #endif |
46fc3d4c | 9445 | } |
9446 | } | |
9447 | ||
9448 | integer: | |
4d84ee25 NC |
9449 | { |
9450 | char *ptr = ebuf + sizeof ebuf; | |
9451 | switch (base) { | |
9452 | unsigned dig; | |
9453 | case 16: | |
9454 | if (!uv) | |
9455 | alt = FALSE; | |
9456 | p = (char*)((c == 'X') | |
9457 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
9458 | do { | |
9459 | dig = uv & 15; | |
9460 | *--ptr = p[dig]; | |
9461 | } while (uv >>= 4); | |
9462 | if (alt) { | |
9463 | esignbuf[esignlen++] = '0'; | |
9464 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ | |
9465 | } | |
9466 | break; | |
9467 | case 8: | |
9468 | do { | |
9469 | dig = uv & 7; | |
9470 | *--ptr = '0' + dig; | |
9471 | } while (uv >>= 3); | |
9472 | if (alt && *ptr != '0') | |
9473 | *--ptr = '0'; | |
9474 | break; | |
9475 | case 2: | |
9476 | do { | |
9477 | dig = uv & 1; | |
9478 | *--ptr = '0' + dig; | |
9479 | } while (uv >>= 1); | |
9480 | if (alt) { | |
9481 | esignbuf[esignlen++] = '0'; | |
9482 | esignbuf[esignlen++] = 'b'; | |
9483 | } | |
9484 | break; | |
9485 | default: /* it had better be ten or less */ | |
9486 | do { | |
9487 | dig = uv % base; | |
9488 | *--ptr = '0' + dig; | |
9489 | } while (uv /= base); | |
9490 | break; | |
46fc3d4c | 9491 | } |
4d84ee25 NC |
9492 | elen = (ebuf + sizeof ebuf) - ptr; |
9493 | eptr = ptr; | |
9494 | if (has_precis) { | |
9495 | if (precis > elen) | |
9496 | zeros = precis - elen; | |
9497 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
9498 | elen = 0; | |
eda88b6d | 9499 | } |
c10ed8b9 | 9500 | } |
46fc3d4c | 9501 | break; |
9502 | ||
9503 | /* FLOATING POINT */ | |
9504 | ||
fc36a67e | 9505 | case 'F': |
9506 | c = 'f'; /* maybe %F isn't supported here */ | |
9507 | /* FALL THROUGH */ | |
46fc3d4c | 9508 | case 'e': case 'E': |
fc36a67e | 9509 | case 'f': |
46fc3d4c | 9510 | case 'g': case 'G': |
9511 | ||
9512 | /* This is evil, but floating point is even more evil */ | |
9513 | ||
9e5b023a JH |
9514 | /* for SV-style calling, we can only get NV |
9515 | for C-style calling, we assume %f is double; | |
9516 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
9517 | */ | |
9518 | switch (intsize) { | |
9519 | case 'V': | |
9520 | #if defined(USE_LONG_DOUBLE) | |
9521 | intsize = 'q'; | |
9522 | #endif | |
9523 | break; | |
8a2e3f14 | 9524 | /* [perl #20339] - we should accept and ignore %lf rather than die */ |
00e17364 HS |
9525 | case 'l': |
9526 | /* FALL THROUGH */ | |
9e5b023a JH |
9527 | default: |
9528 | #if defined(USE_LONG_DOUBLE) | |
9529 | intsize = args ? 0 : 'q'; | |
9530 | #endif | |
9531 | break; | |
9532 | case 'q': | |
9533 | #if defined(HAS_LONG_DOUBLE) | |
9534 | break; | |
9535 | #else | |
9536 | /* FALL THROUGH */ | |
9537 | #endif | |
9538 | case 'h': | |
9e5b023a JH |
9539 | goto unknown; |
9540 | } | |
9541 | ||
9542 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 9543 | nv = (args && !vectorize) ? |
35fff930 JH |
9544 | #if LONG_DOUBLESIZE > DOUBLESIZE |
9545 | intsize == 'q' ? | |
205f51d8 AS |
9546 | va_arg(*args, long double) : |
9547 | va_arg(*args, double) | |
35fff930 | 9548 | #else |
205f51d8 | 9549 | va_arg(*args, double) |
35fff930 | 9550 | #endif |
9e5b023a | 9551 | : SvNVx(argsv); |
fc36a67e | 9552 | |
9553 | need = 0; | |
be75b157 | 9554 | vectorize = FALSE; |
fc36a67e | 9555 | if (c != 'e' && c != 'E') { |
9556 | i = PERL_INT_MIN; | |
9e5b023a JH |
9557 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
9558 | will cast our (long double) to (double) */ | |
73b309ea | 9559 | (void)Perl_frexp(nv, &i); |
fc36a67e | 9560 | if (i == PERL_INT_MIN) |
cea2e8a9 | 9561 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 9562 | if (i > 0) |
fc36a67e | 9563 | need = BIT_DIGITS(i); |
9564 | } | |
9565 | need += has_precis ? precis : 6; /* known default */ | |
20f6aaab | 9566 | |
fc36a67e | 9567 | if (need < width) |
9568 | need = width; | |
9569 | ||
20f6aaab AS |
9570 | #ifdef HAS_LDBL_SPRINTF_BUG |
9571 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
205f51d8 AS |
9572 | with sfio - Allen <allens@cpan.org> */ |
9573 | ||
9574 | # ifdef DBL_MAX | |
9575 | # define MY_DBL_MAX DBL_MAX | |
9576 | # else /* XXX guessing! HUGE_VAL may be defined as infinity, so not using */ | |
9577 | # if DOUBLESIZE >= 8 | |
9578 | # define MY_DBL_MAX 1.7976931348623157E+308L | |
9579 | # else | |
9580 | # define MY_DBL_MAX 3.40282347E+38L | |
9581 | # endif | |
9582 | # endif | |
9583 | ||
9584 | # ifdef HAS_LDBL_SPRINTF_BUG_LESS1 /* only between -1L & 1L - Allen */ | |
9585 | # define MY_DBL_MAX_BUG 1L | |
20f6aaab | 9586 | # else |
205f51d8 | 9587 | # define MY_DBL_MAX_BUG MY_DBL_MAX |
20f6aaab | 9588 | # endif |
20f6aaab | 9589 | |
205f51d8 AS |
9590 | # ifdef DBL_MIN |
9591 | # define MY_DBL_MIN DBL_MIN | |
9592 | # else /* XXX guessing! -Allen */ | |
9593 | # if DOUBLESIZE >= 8 | |
9594 | # define MY_DBL_MIN 2.2250738585072014E-308L | |
9595 | # else | |
9596 | # define MY_DBL_MIN 1.17549435E-38L | |
9597 | # endif | |
9598 | # endif | |
20f6aaab | 9599 | |
205f51d8 AS |
9600 | if ((intsize == 'q') && (c == 'f') && |
9601 | ((nv < MY_DBL_MAX_BUG) && (nv > -MY_DBL_MAX_BUG)) && | |
9602 | (need < DBL_DIG)) { | |
9603 | /* it's going to be short enough that | |
9604 | * long double precision is not needed */ | |
9605 | ||
9606 | if ((nv <= 0L) && (nv >= -0L)) | |
9607 | fix_ldbl_sprintf_bug = TRUE; /* 0 is 0 - easiest */ | |
9608 | else { | |
9609 | /* would use Perl_fp_class as a double-check but not | |
9610 | * functional on IRIX - see perl.h comments */ | |
9611 | ||
9612 | if ((nv >= MY_DBL_MIN) || (nv <= -MY_DBL_MIN)) { | |
9613 | /* It's within the range that a double can represent */ | |
9614 | #if defined(DBL_MAX) && !defined(DBL_MIN) | |
9615 | if ((nv >= ((long double)1/DBL_MAX)) || | |
9616 | (nv <= (-(long double)1/DBL_MAX))) | |
20f6aaab | 9617 | #endif |
205f51d8 | 9618 | fix_ldbl_sprintf_bug = TRUE; |
20f6aaab | 9619 | } |
205f51d8 AS |
9620 | } |
9621 | if (fix_ldbl_sprintf_bug == TRUE) { | |
9622 | double temp; | |
9623 | ||
9624 | intsize = 0; | |
9625 | temp = (double)nv; | |
9626 | nv = (NV)temp; | |
9627 | } | |
20f6aaab | 9628 | } |
205f51d8 AS |
9629 | |
9630 | # undef MY_DBL_MAX | |
9631 | # undef MY_DBL_MAX_BUG | |
9632 | # undef MY_DBL_MIN | |
9633 | ||
20f6aaab AS |
9634 | #endif /* HAS_LDBL_SPRINTF_BUG */ |
9635 | ||
46fc3d4c | 9636 | need += 20; /* fudge factor */ |
80252599 GS |
9637 | if (PL_efloatsize < need) { |
9638 | Safefree(PL_efloatbuf); | |
9639 | PL_efloatsize = need + 20; /* more fudge */ | |
a02a5408 | 9640 | Newx(PL_efloatbuf, PL_efloatsize, char); |
7d5ea4e7 | 9641 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 9642 | } |
9643 | ||
4151a5fe IZ |
9644 | if ( !(width || left || plus || alt) && fill != '0' |
9645 | && has_precis && intsize != 'q' ) { /* Shortcuts */ | |
2873255c NC |
9646 | /* See earlier comment about buggy Gconvert when digits, |
9647 | aka precis is 0 */ | |
9648 | if ( c == 'g' && precis) { | |
2e59c212 | 9649 | Gconvert((NV)nv, (int)precis, 0, PL_efloatbuf); |
4151a5fe IZ |
9650 | if (*PL_efloatbuf) /* May return an empty string for digits==0 */ |
9651 | goto float_converted; | |
9652 | } else if ( c == 'f' && !precis) { | |
9653 | if ((eptr = F0convert(nv, ebuf + sizeof ebuf, &elen))) | |
9654 | break; | |
9655 | } | |
9656 | } | |
4d84ee25 NC |
9657 | { |
9658 | char *ptr = ebuf + sizeof ebuf; | |
9659 | *--ptr = '\0'; | |
9660 | *--ptr = c; | |
9661 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ | |
9e5b023a | 9662 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) |
4d84ee25 NC |
9663 | if (intsize == 'q') { |
9664 | /* Copy the one or more characters in a long double | |
9665 | * format before the 'base' ([efgEFG]) character to | |
9666 | * the format string. */ | |
9667 | static char const prifldbl[] = PERL_PRIfldbl; | |
9668 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
9669 | while (p >= prifldbl) { *--ptr = *p--; } | |
9670 | } | |
65202027 | 9671 | #endif |
4d84ee25 NC |
9672 | if (has_precis) { |
9673 | base = precis; | |
9674 | do { *--ptr = '0' + (base % 10); } while (base /= 10); | |
9675 | *--ptr = '.'; | |
9676 | } | |
9677 | if (width) { | |
9678 | base = width; | |
9679 | do { *--ptr = '0' + (base % 10); } while (base /= 10); | |
9680 | } | |
9681 | if (fill == '0') | |
9682 | *--ptr = fill; | |
9683 | if (left) | |
9684 | *--ptr = '-'; | |
9685 | if (plus) | |
9686 | *--ptr = plus; | |
9687 | if (alt) | |
9688 | *--ptr = '#'; | |
9689 | *--ptr = '%'; | |
9690 | ||
9691 | /* No taint. Otherwise we are in the strange situation | |
9692 | * where printf() taints but print($float) doesn't. | |
9693 | * --jhi */ | |
9e5b023a | 9694 | #if defined(HAS_LONG_DOUBLE) |
4d84ee25 NC |
9695 | if (intsize == 'q') |
9696 | (void)sprintf(PL_efloatbuf, ptr, nv); | |
9697 | else | |
9698 | (void)sprintf(PL_efloatbuf, ptr, (double)nv); | |
9e5b023a | 9699 | #else |
4d84ee25 | 9700 | (void)sprintf(PL_efloatbuf, ptr, nv); |
9e5b023a | 9701 | #endif |
4d84ee25 | 9702 | } |
4151a5fe | 9703 | float_converted: |
80252599 GS |
9704 | eptr = PL_efloatbuf; |
9705 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 9706 | break; |
9707 | ||
fc36a67e | 9708 | /* SPECIAL */ |
9709 | ||
9710 | case 'n': | |
9711 | i = SvCUR(sv) - origlen; | |
be75b157 | 9712 | if (args && !vectorize) { |
c635e13b | 9713 | switch (intsize) { |
9714 | case 'h': *(va_arg(*args, short*)) = i; break; | |
9715 | default: *(va_arg(*args, int*)) = i; break; | |
9716 | case 'l': *(va_arg(*args, long*)) = i; break; | |
9717 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
9718 | #ifdef HAS_QUAD |
9719 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
9720 | #endif | |
c635e13b | 9721 | } |
fc36a67e | 9722 | } |
9dd79c3f | 9723 | else |
211dfcf1 | 9724 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 9725 | vectorize = FALSE; |
fc36a67e | 9726 | continue; /* not "break" */ |
9727 | ||
9728 | /* UNKNOWN */ | |
9729 | ||
46fc3d4c | 9730 | default: |
fc36a67e | 9731 | unknown: |
041457d9 DM |
9732 | if (!args |
9733 | && (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF) | |
9734 | && ckWARN(WARN_PRINTF)) | |
9735 | { | |
c635e13b | 9736 | SV *msg = sv_newmortal(); |
35c1215d NC |
9737 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %sprintf: ", |
9738 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
0f4b6630 | 9739 | if (c) { |
0f4b6630 | 9740 | if (isPRINT(c)) |
1c846c1f | 9741 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
9742 | "\"%%%c\"", c & 0xFF); |
9743 | else | |
9744 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 9745 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 9746 | (UV)c & 0xFF); |
0f4b6630 | 9747 | } else |
c635e13b | 9748 | sv_catpv(msg, "end of string"); |
9014280d | 9749 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 9750 | } |
fb73857a | 9751 | |
9752 | /* output mangled stuff ... */ | |
9753 | if (c == '\0') | |
9754 | --q; | |
46fc3d4c | 9755 | eptr = p; |
9756 | elen = q - p; | |
fb73857a | 9757 | |
9758 | /* ... right here, because formatting flags should not apply */ | |
9759 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9760 | p = SvEND(sv); | |
4459522c | 9761 | Copy(eptr, p, elen, char); |
fb73857a | 9762 | p += elen; |
9763 | *p = '\0'; | |
3f7c398e | 9764 | SvCUR_set(sv, p - SvPVX_const(sv)); |
58e33a90 | 9765 | svix = osvix; |
fb73857a | 9766 | continue; /* not "break" */ |
46fc3d4c | 9767 | } |
9768 | ||
6c94ec8b HS |
9769 | /* calculate width before utf8_upgrade changes it */ |
9770 | have = esignlen + zeros + elen; | |
9771 | ||
d2876be5 JH |
9772 | if (is_utf8 != has_utf8) { |
9773 | if (is_utf8) { | |
9774 | if (SvCUR(sv)) | |
9775 | sv_utf8_upgrade(sv); | |
9776 | } | |
9777 | else { | |
53c1dcc0 | 9778 | SV * const nsv = sv_2mortal(newSVpvn(eptr, elen)); |
d2876be5 | 9779 | sv_utf8_upgrade(nsv); |
93524f2b | 9780 | eptr = SvPVX_const(nsv); |
d2876be5 JH |
9781 | elen = SvCUR(nsv); |
9782 | } | |
9783 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
9784 | p = SvEND(sv); | |
9785 | *p = '\0'; | |
9786 | } | |
6af65485 | 9787 | |
46fc3d4c | 9788 | need = (have > width ? have : width); |
9789 | gap = need - have; | |
9790 | ||
b22c7a20 | 9791 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 9792 | p = SvEND(sv); |
9793 | if (esignlen && fill == '0') { | |
53c1dcc0 | 9794 | int i; |
eb160463 | 9795 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9796 | *p++ = esignbuf[i]; |
9797 | } | |
9798 | if (gap && !left) { | |
9799 | memset(p, fill, gap); | |
9800 | p += gap; | |
9801 | } | |
9802 | if (esignlen && fill != '0') { | |
53c1dcc0 | 9803 | int i; |
eb160463 | 9804 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 9805 | *p++ = esignbuf[i]; |
9806 | } | |
fc36a67e | 9807 | if (zeros) { |
53c1dcc0 | 9808 | int i; |
fc36a67e | 9809 | for (i = zeros; i; i--) |
9810 | *p++ = '0'; | |
9811 | } | |
46fc3d4c | 9812 | if (elen) { |
4459522c | 9813 | Copy(eptr, p, elen, char); |
46fc3d4c | 9814 | p += elen; |
9815 | } | |
9816 | if (gap && left) { | |
9817 | memset(p, ' ', gap); | |
9818 | p += gap; | |
9819 | } | |
b22c7a20 GS |
9820 | if (vectorize) { |
9821 | if (veclen) { | |
4459522c | 9822 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
9823 | p += dotstrlen; |
9824 | } | |
9825 | else | |
9826 | vectorize = FALSE; /* done iterating over vecstr */ | |
9827 | } | |
2cf2cfc6 A |
9828 | if (is_utf8) |
9829 | has_utf8 = TRUE; | |
9830 | if (has_utf8) | |
7e2040f0 | 9831 | SvUTF8_on(sv); |
46fc3d4c | 9832 | *p = '\0'; |
3f7c398e | 9833 | SvCUR_set(sv, p - SvPVX_const(sv)); |
b22c7a20 GS |
9834 | if (vectorize) { |
9835 | esignlen = 0; | |
9836 | goto vector; | |
9837 | } | |
46fc3d4c | 9838 | } |
9839 | } | |
51371543 | 9840 | |
645c22ef DM |
9841 | /* ========================================================================= |
9842 | ||
9843 | =head1 Cloning an interpreter | |
9844 | ||
9845 | All the macros and functions in this section are for the private use of | |
9846 | the main function, perl_clone(). | |
9847 | ||
9848 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
9849 | During the course of a cloning, a hash table is used to map old addresses | |
9850 | to new addresses. The table is created and manipulated with the | |
9851 | ptr_table_* functions. | |
9852 | ||
9853 | =cut | |
9854 | ||
9855 | ============================================================================*/ | |
9856 | ||
9857 | ||
1d7c1841 GS |
9858 | #if defined(USE_ITHREADS) |
9859 | ||
1d7c1841 GS |
9860 | #ifndef GpREFCNT_inc |
9861 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
9862 | #endif | |
9863 | ||
9864 | ||
d2d73c3e AB |
9865 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
9866 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
9867 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9868 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
9869 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9870 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
9871 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9872 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
9873 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
9874 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
9875 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
9876 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
9877 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 9878 | |
d2d73c3e | 9879 | |
d2f185dc AMS |
9880 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
9881 | regcomp.c. AMS 20010712 */ | |
645c22ef | 9882 | |
1d7c1841 | 9883 | REGEXP * |
53c1dcc0 | 9884 | Perl_re_dup(pTHX_ const REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 9885 | { |
27da23d5 | 9886 | dVAR; |
d2f185dc AMS |
9887 | REGEXP *ret; |
9888 | int i, len, npar; | |
9889 | struct reg_substr_datum *s; | |
9890 | ||
9891 | if (!r) | |
9892 | return (REGEXP *)NULL; | |
9893 | ||
9894 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
9895 | return ret; | |
9896 | ||
9897 | len = r->offsets[0]; | |
9898 | npar = r->nparens+1; | |
9899 | ||
a02a5408 | 9900 | Newxc(ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); |
d2f185dc AMS |
9901 | Copy(r->program, ret->program, len+1, regnode); |
9902 | ||
a02a5408 | 9903 | Newx(ret->startp, npar, I32); |
d2f185dc | 9904 | Copy(r->startp, ret->startp, npar, I32); |
a02a5408 | 9905 | Newx(ret->endp, npar, I32); |
d2f185dc AMS |
9906 | Copy(r->startp, ret->startp, npar, I32); |
9907 | ||
a02a5408 | 9908 | Newx(ret->substrs, 1, struct reg_substr_data); |
d2f185dc AMS |
9909 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { |
9910 | s->min_offset = r->substrs->data[i].min_offset; | |
9911 | s->max_offset = r->substrs->data[i].max_offset; | |
9912 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 9913 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
9914 | } |
9915 | ||
70612e96 | 9916 | ret->regstclass = NULL; |
d2f185dc AMS |
9917 | if (r->data) { |
9918 | struct reg_data *d; | |
e1ec3a88 | 9919 | const int count = r->data->count; |
53c1dcc0 | 9920 | int i; |
d2f185dc | 9921 | |
a02a5408 | 9922 | Newxc(d, sizeof(struct reg_data) + count*sizeof(void *), |
d2f185dc | 9923 | char, struct reg_data); |
a02a5408 | 9924 | Newx(d->what, count, U8); |
d2f185dc AMS |
9925 | |
9926 | d->count = count; | |
9927 | for (i = 0; i < count; i++) { | |
9928 | d->what[i] = r->data->what[i]; | |
9929 | switch (d->what[i]) { | |
a3621e74 YO |
9930 | /* legal options are one of: sfpont |
9931 | see also regcomp.h and pregfree() */ | |
d2f185dc AMS |
9932 | case 's': |
9933 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
9934 | break; | |
9935 | case 'p': | |
9936 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
9937 | break; | |
9938 | case 'f': | |
9939 | /* This is cheating. */ | |
a02a5408 | 9940 | Newx(d->data[i], 1, struct regnode_charclass_class); |
d2f185dc AMS |
9941 | StructCopy(r->data->data[i], d->data[i], |
9942 | struct regnode_charclass_class); | |
70612e96 | 9943 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
9944 | break; |
9945 | case 'o': | |
33773810 AMS |
9946 | /* Compiled op trees are readonly, and can thus be |
9947 | shared without duplication. */ | |
b34c0dd4 | 9948 | OP_REFCNT_LOCK; |
9b978d73 | 9949 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
b34c0dd4 | 9950 | OP_REFCNT_UNLOCK; |
9b978d73 | 9951 | break; |
d2f185dc AMS |
9952 | case 'n': |
9953 | d->data[i] = r->data->data[i]; | |
9954 | break; | |
a3621e74 YO |
9955 | case 't': |
9956 | d->data[i] = r->data->data[i]; | |
9957 | OP_REFCNT_LOCK; | |
9958 | ((reg_trie_data*)d->data[i])->refcount++; | |
9959 | OP_REFCNT_UNLOCK; | |
9960 | break; | |
9961 | default: | |
9962 | Perl_croak(aTHX_ "panic: re_dup unknown data code '%c'", r->data->what[i]); | |
d2f185dc AMS |
9963 | } |
9964 | } | |
9965 | ||
9966 | ret->data = d; | |
9967 | } | |
9968 | else | |
9969 | ret->data = NULL; | |
9970 | ||
a02a5408 | 9971 | Newx(ret->offsets, 2*len+1, U32); |
d2f185dc AMS |
9972 | Copy(r->offsets, ret->offsets, 2*len+1, U32); |
9973 | ||
e01c5899 | 9974 | ret->precomp = SAVEPVN(r->precomp, r->prelen); |
d2f185dc AMS |
9975 | ret->refcnt = r->refcnt; |
9976 | ret->minlen = r->minlen; | |
9977 | ret->prelen = r->prelen; | |
9978 | ret->nparens = r->nparens; | |
9979 | ret->lastparen = r->lastparen; | |
9980 | ret->lastcloseparen = r->lastcloseparen; | |
9981 | ret->reganch = r->reganch; | |
9982 | ||
70612e96 RG |
9983 | ret->sublen = r->sublen; |
9984 | ||
9985 | if (RX_MATCH_COPIED(ret)) | |
e01c5899 | 9986 | ret->subbeg = SAVEPVN(r->subbeg, r->sublen); |
70612e96 RG |
9987 | else |
9988 | ret->subbeg = Nullch; | |
f8c7b90f | 9989 | #ifdef PERL_OLD_COPY_ON_WRITE |
9a26048b NC |
9990 | ret->saved_copy = Nullsv; |
9991 | #endif | |
70612e96 | 9992 | |
d2f185dc AMS |
9993 | ptr_table_store(PL_ptr_table, r, ret); |
9994 | return ret; | |
1d7c1841 GS |
9995 | } |
9996 | ||
d2d73c3e | 9997 | /* duplicate a file handle */ |
645c22ef | 9998 | |
1d7c1841 | 9999 | PerlIO * |
a8fc9800 | 10000 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
10001 | { |
10002 | PerlIO *ret; | |
53c1dcc0 AL |
10003 | |
10004 | PERL_UNUSED_ARG(type); | |
73d840c0 | 10005 | |
1d7c1841 GS |
10006 | if (!fp) |
10007 | return (PerlIO*)NULL; | |
10008 | ||
10009 | /* look for it in the table first */ | |
10010 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
10011 | if (ret) | |
10012 | return ret; | |
10013 | ||
10014 | /* create anew and remember what it is */ | |
ecdeb87c | 10015 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
10016 | ptr_table_store(PL_ptr_table, fp, ret); |
10017 | return ret; | |
10018 | } | |
10019 | ||
645c22ef DM |
10020 | /* duplicate a directory handle */ |
10021 | ||
1d7c1841 GS |
10022 | DIR * |
10023 | Perl_dirp_dup(pTHX_ DIR *dp) | |
10024 | { | |
10025 | if (!dp) | |
10026 | return (DIR*)NULL; | |
10027 | /* XXX TODO */ | |
10028 | return dp; | |
10029 | } | |
10030 | ||
ff276b08 | 10031 | /* duplicate a typeglob */ |
645c22ef | 10032 | |
1d7c1841 | 10033 | GP * |
a8fc9800 | 10034 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
10035 | { |
10036 | GP *ret; | |
10037 | if (!gp) | |
10038 | return (GP*)NULL; | |
10039 | /* look for it in the table first */ | |
10040 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
10041 | if (ret) | |
10042 | return ret; | |
10043 | ||
10044 | /* create anew and remember what it is */ | |
a02a5408 | 10045 | Newxz(ret, 1, GP); |
1d7c1841 GS |
10046 | ptr_table_store(PL_ptr_table, gp, ret); |
10047 | ||
10048 | /* clone */ | |
10049 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
10050 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
10051 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
10052 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
10053 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
10054 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
10055 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
10056 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 | 10057 | ret->gp_cvgen = gp->gp_cvgen; |
1d7c1841 GS |
10058 | ret->gp_line = gp->gp_line; |
10059 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
10060 | return ret; | |
10061 | } | |
10062 | ||
645c22ef DM |
10063 | /* duplicate a chain of magic */ |
10064 | ||
1d7c1841 | 10065 | MAGIC * |
a8fc9800 | 10066 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 10067 | { |
cb359b41 JH |
10068 | MAGIC *mgprev = (MAGIC*)NULL; |
10069 | MAGIC *mgret; | |
1d7c1841 GS |
10070 | if (!mg) |
10071 | return (MAGIC*)NULL; | |
10072 | /* look for it in the table first */ | |
10073 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
10074 | if (mgret) | |
10075 | return mgret; | |
10076 | ||
10077 | for (; mg; mg = mg->mg_moremagic) { | |
10078 | MAGIC *nmg; | |
a02a5408 | 10079 | Newxz(nmg, 1, MAGIC); |
cb359b41 | 10080 | if (mgprev) |
1d7c1841 | 10081 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
10082 | else |
10083 | mgret = nmg; | |
1d7c1841 GS |
10084 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
10085 | nmg->mg_private = mg->mg_private; | |
10086 | nmg->mg_type = mg->mg_type; | |
10087 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 10088 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 10089 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 10090 | } |
05bd4103 | 10091 | else if(mg->mg_type == PERL_MAGIC_backref) { |
7fc63493 | 10092 | const AV * const av = (AV*) mg->mg_obj; |
fdc9a813 AE |
10093 | SV **svp; |
10094 | I32 i; | |
7fc63493 | 10095 | (void)SvREFCNT_inc(nmg->mg_obj = (SV*)newAV()); |
fdc9a813 AE |
10096 | svp = AvARRAY(av); |
10097 | for (i = AvFILLp(av); i >= 0; i--) { | |
3a81978b | 10098 | if (!svp[i]) continue; |
fdc9a813 AE |
10099 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); |
10100 | } | |
05bd4103 | 10101 | } |
8d2f4536 NC |
10102 | else if (mg->mg_type == PERL_MAGIC_symtab) { |
10103 | nmg->mg_obj = mg->mg_obj; | |
10104 | } | |
1d7c1841 GS |
10105 | else { |
10106 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
10107 | ? sv_dup_inc(mg->mg_obj, param) |
10108 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
10109 | } |
10110 | nmg->mg_len = mg->mg_len; | |
10111 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 10112 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 10113 | if (mg->mg_len > 0) { |
1d7c1841 | 10114 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
10115 | if (mg->mg_type == PERL_MAGIC_overload_table && |
10116 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
10117 | { | |
1d7c1841 GS |
10118 | AMT *amtp = (AMT*)mg->mg_ptr; |
10119 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
10120 | I32 i; | |
10121 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 10122 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
10123 | } |
10124 | } | |
10125 | } | |
10126 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 10127 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 10128 | } |
68795e93 NIS |
10129 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
10130 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
10131 | } | |
1d7c1841 GS |
10132 | mgprev = nmg; |
10133 | } | |
10134 | return mgret; | |
10135 | } | |
10136 | ||
645c22ef DM |
10137 | /* create a new pointer-mapping table */ |
10138 | ||
1d7c1841 GS |
10139 | PTR_TBL_t * |
10140 | Perl_ptr_table_new(pTHX) | |
10141 | { | |
10142 | PTR_TBL_t *tbl; | |
a02a5408 | 10143 | Newxz(tbl, 1, PTR_TBL_t); |
1d7c1841 GS |
10144 | tbl->tbl_max = 511; |
10145 | tbl->tbl_items = 0; | |
a02a5408 | 10146 | Newxz(tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); |
1d7c1841 GS |
10147 | return tbl; |
10148 | } | |
10149 | ||
134ca3d6 DM |
10150 | #if (PTRSIZE == 8) |
10151 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 3) | |
10152 | #else | |
10153 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 2) | |
10154 | #endif | |
10155 | ||
cb4415b8 | 10156 | #define del_pte(p) del_body_type(p, struct ptr_tbl_ent, pte) |
32e691d0 | 10157 | |
645c22ef DM |
10158 | /* map an existing pointer using a table */ |
10159 | ||
1d7c1841 | 10160 | void * |
53c1dcc0 | 10161 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, const void *sv) |
1d7c1841 GS |
10162 | { |
10163 | PTR_TBL_ENT_t *tblent; | |
4373e329 | 10164 | const UV hash = PTR_TABLE_HASH(sv); |
1d7c1841 GS |
10165 | assert(tbl); |
10166 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
10167 | for (; tblent; tblent = tblent->next) { | |
10168 | if (tblent->oldval == sv) | |
10169 | return tblent->newval; | |
10170 | } | |
10171 | return (void*)NULL; | |
10172 | } | |
10173 | ||
645c22ef DM |
10174 | /* add a new entry to a pointer-mapping table */ |
10175 | ||
1d7c1841 | 10176 | void |
53c1dcc0 | 10177 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, const void *oldv, void *newv) |
1d7c1841 GS |
10178 | { |
10179 | PTR_TBL_ENT_t *tblent, **otblent; | |
10180 | /* XXX this may be pessimal on platforms where pointers aren't good | |
10181 | * hash values e.g. if they grow faster in the most significant | |
10182 | * bits */ | |
4373e329 | 10183 | const UV hash = PTR_TABLE_HASH(oldv); |
14cade97 | 10184 | bool empty = 1; |
1d7c1841 GS |
10185 | |
10186 | assert(tbl); | |
10187 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
14cade97 | 10188 | for (tblent = *otblent; tblent; empty=0, tblent = tblent->next) { |
1d7c1841 GS |
10189 | if (tblent->oldval == oldv) { |
10190 | tblent->newval = newv; | |
1d7c1841 GS |
10191 | return; |
10192 | } | |
10193 | } | |
08742458 NC |
10194 | new_body_inline(tblent, (void**)&PL_pte_arenaroot, (void**)&PL_pte_root, |
10195 | sizeof(struct ptr_tbl_ent)); | |
1d7c1841 GS |
10196 | tblent->oldval = oldv; |
10197 | tblent->newval = newv; | |
10198 | tblent->next = *otblent; | |
10199 | *otblent = tblent; | |
10200 | tbl->tbl_items++; | |
14cade97 | 10201 | if (!empty && tbl->tbl_items > tbl->tbl_max) |
1d7c1841 GS |
10202 | ptr_table_split(tbl); |
10203 | } | |
10204 | ||
645c22ef DM |
10205 | /* double the hash bucket size of an existing ptr table */ |
10206 | ||
1d7c1841 GS |
10207 | void |
10208 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
10209 | { | |
10210 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
4373e329 | 10211 | const UV oldsize = tbl->tbl_max + 1; |
1d7c1841 GS |
10212 | UV newsize = oldsize * 2; |
10213 | UV i; | |
10214 | ||
10215 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
10216 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
10217 | tbl->tbl_max = --newsize; | |
10218 | tbl->tbl_ary = ary; | |
10219 | for (i=0; i < oldsize; i++, ary++) { | |
10220 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
10221 | if (!*ary) | |
10222 | continue; | |
10223 | curentp = ary + oldsize; | |
10224 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
134ca3d6 | 10225 | if ((newsize & PTR_TABLE_HASH(ent->oldval)) != i) { |
1d7c1841 GS |
10226 | *entp = ent->next; |
10227 | ent->next = *curentp; | |
10228 | *curentp = ent; | |
10229 | continue; | |
10230 | } | |
10231 | else | |
10232 | entp = &ent->next; | |
10233 | } | |
10234 | } | |
10235 | } | |
10236 | ||
645c22ef DM |
10237 | /* remove all the entries from a ptr table */ |
10238 | ||
a0739874 DM |
10239 | void |
10240 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
10241 | { | |
10242 | register PTR_TBL_ENT_t **array; | |
10243 | register PTR_TBL_ENT_t *entry; | |
a0739874 DM |
10244 | UV riter = 0; |
10245 | UV max; | |
10246 | ||
10247 | if (!tbl || !tbl->tbl_items) { | |
10248 | return; | |
10249 | } | |
10250 | ||
10251 | array = tbl->tbl_ary; | |
10252 | entry = array[0]; | |
10253 | max = tbl->tbl_max; | |
10254 | ||
10255 | for (;;) { | |
10256 | if (entry) { | |
4373e329 | 10257 | PTR_TBL_ENT_t *oentry = entry; |
a0739874 | 10258 | entry = entry->next; |
437a6bf1 | 10259 | del_pte(oentry); |
a0739874 DM |
10260 | } |
10261 | if (!entry) { | |
10262 | if (++riter > max) { | |
10263 | break; | |
10264 | } | |
10265 | entry = array[riter]; | |
10266 | } | |
10267 | } | |
10268 | ||
10269 | tbl->tbl_items = 0; | |
10270 | } | |
10271 | ||
645c22ef DM |
10272 | /* clear and free a ptr table */ |
10273 | ||
a0739874 DM |
10274 | void |
10275 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
10276 | { | |
10277 | if (!tbl) { | |
10278 | return; | |
10279 | } | |
10280 | ptr_table_clear(tbl); | |
10281 | Safefree(tbl->tbl_ary); | |
10282 | Safefree(tbl); | |
10283 | } | |
10284 | ||
5bd07a3d | 10285 | |
83841fad NIS |
10286 | void |
10287 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
10288 | { | |
10289 | if (SvROK(sstr)) { | |
b162af07 SP |
10290 | SvRV_set(dstr, SvWEAKREF(sstr) |
10291 | ? sv_dup(SvRV(sstr), param) | |
10292 | : sv_dup_inc(SvRV(sstr), param)); | |
f880fe2f | 10293 | |
83841fad | 10294 | } |
3f7c398e | 10295 | else if (SvPVX_const(sstr)) { |
83841fad NIS |
10296 | /* Has something there */ |
10297 | if (SvLEN(sstr)) { | |
68795e93 | 10298 | /* Normal PV - clone whole allocated space */ |
3f7c398e | 10299 | SvPV_set(dstr, SAVEPVN(SvPVX_const(sstr), SvLEN(sstr)-1)); |
d3d0e6f1 NC |
10300 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { |
10301 | /* Not that normal - actually sstr is copy on write. | |
10302 | But we are a true, independant SV, so: */ | |
10303 | SvREADONLY_off(dstr); | |
10304 | SvFAKE_off(dstr); | |
10305 | } | |
68795e93 | 10306 | } |
83841fad NIS |
10307 | else { |
10308 | /* Special case - not normally malloced for some reason */ | |
ef10be65 NC |
10309 | if ((SvREADONLY(sstr) && SvFAKE(sstr))) { |
10310 | /* A "shared" PV - clone it as "shared" PV */ | |
10311 | SvPV_set(dstr, | |
10312 | HEK_KEY(hek_dup(SvSHARED_HEK_FROM_PV(SvPVX_const(sstr)), | |
10313 | param))); | |
83841fad NIS |
10314 | } |
10315 | else { | |
10316 | /* Some other special case - random pointer */ | |
f880fe2f | 10317 | SvPV_set(dstr, SvPVX(sstr)); |
d3d0e6f1 | 10318 | } |
83841fad NIS |
10319 | } |
10320 | } | |
10321 | else { | |
10322 | /* Copy the Null */ | |
f880fe2f | 10323 | if (SvTYPE(dstr) == SVt_RV) |
b162af07 | 10324 | SvRV_set(dstr, NULL); |
f880fe2f SP |
10325 | else |
10326 | SvPV_set(dstr, 0); | |
83841fad NIS |
10327 | } |
10328 | } | |
10329 | ||
662fb8b2 NC |
10330 | /* duplicate an SV of any type (including AV, HV etc) */ |
10331 | ||
1d7c1841 | 10332 | SV * |
a8fc9800 | 10333 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 10334 | { |
27da23d5 | 10335 | dVAR; |
1d7c1841 GS |
10336 | SV *dstr; |
10337 | ||
10338 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
10339 | return Nullsv; | |
10340 | /* look for it in the table first */ | |
10341 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
10342 | if (dstr) | |
10343 | return dstr; | |
10344 | ||
0405e91e AB |
10345 | if(param->flags & CLONEf_JOIN_IN) { |
10346 | /** We are joining here so we don't want do clone | |
10347 | something that is bad **/ | |
bfcb3514 | 10348 | const char *hvname; |
0405e91e AB |
10349 | |
10350 | if(SvTYPE(sstr) == SVt_PVHV && | |
bfcb3514 | 10351 | (hvname = HvNAME_get(sstr))) { |
0405e91e | 10352 | /** don't clone stashes if they already exist **/ |
bfcb3514 | 10353 | HV* old_stash = gv_stashpv(hvname,0); |
0405e91e AB |
10354 | return (SV*) old_stash; |
10355 | } | |
10356 | } | |
10357 | ||
1d7c1841 GS |
10358 | /* create anew and remember what it is */ |
10359 | new_SV(dstr); | |
fd0854ff DM |
10360 | |
10361 | #ifdef DEBUG_LEAKING_SCALARS | |
10362 | dstr->sv_debug_optype = sstr->sv_debug_optype; | |
10363 | dstr->sv_debug_line = sstr->sv_debug_line; | |
10364 | dstr->sv_debug_inpad = sstr->sv_debug_inpad; | |
10365 | dstr->sv_debug_cloned = 1; | |
10366 | # ifdef NETWARE | |
10367 | dstr->sv_debug_file = savepv(sstr->sv_debug_file); | |
10368 | # else | |
10369 | dstr->sv_debug_file = savesharedpv(sstr->sv_debug_file); | |
10370 | # endif | |
10371 | #endif | |
10372 | ||
1d7c1841 GS |
10373 | ptr_table_store(PL_ptr_table, sstr, dstr); |
10374 | ||
10375 | /* clone */ | |
10376 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
10377 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
10378 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
10379 | ||
10380 | #ifdef DEBUGGING | |
3f7c398e | 10381 | if (SvANY(sstr) && PL_watch_pvx && SvPVX_const(sstr) == PL_watch_pvx) |
1d7c1841 | 10382 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", |
3f7c398e | 10383 | PL_watch_pvx, SvPVX_const(sstr)); |
1d7c1841 GS |
10384 | #endif |
10385 | ||
9660f481 DM |
10386 | /* don't clone objects whose class has asked us not to */ |
10387 | if (SvOBJECT(sstr) && ! (SvFLAGS(SvSTASH(sstr)) & SVphv_CLONEABLE)) { | |
10388 | SvFLAGS(dstr) &= ~SVTYPEMASK; | |
10389 | SvOBJECT_off(dstr); | |
10390 | return dstr; | |
10391 | } | |
10392 | ||
1d7c1841 GS |
10393 | switch (SvTYPE(sstr)) { |
10394 | case SVt_NULL: | |
10395 | SvANY(dstr) = NULL; | |
10396 | break; | |
10397 | case SVt_IV: | |
339049b0 | 10398 | SvANY(dstr) = (XPVIV*)((char*)&(dstr->sv_u.svu_iv) - STRUCT_OFFSET(XPVIV, xiv_iv)); |
45977657 | 10399 | SvIV_set(dstr, SvIVX(sstr)); |
1d7c1841 GS |
10400 | break; |
10401 | case SVt_NV: | |
10402 | SvANY(dstr) = new_XNV(); | |
9d6ce603 | 10403 | SvNV_set(dstr, SvNVX(sstr)); |
1d7c1841 GS |
10404 | break; |
10405 | case SVt_RV: | |
339049b0 | 10406 | SvANY(dstr) = &(dstr->sv_u.svu_rv); |
83841fad | 10407 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 | 10408 | break; |
662fb8b2 NC |
10409 | default: |
10410 | { | |
10411 | /* These are all the types that need complex bodies allocating. */ | |
10412 | size_t new_body_length; | |
10413 | size_t new_body_offset = 0; | |
10414 | void **new_body_arena; | |
10415 | void **new_body_arenaroot; | |
10416 | void *new_body; | |
10417 | ||
10418 | switch (SvTYPE(sstr)) { | |
10419 | default: | |
10420 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", | |
10421 | (IV)SvTYPE(sstr)); | |
10422 | break; | |
10423 | ||
10424 | case SVt_PVIO: | |
10425 | new_body = new_XPVIO(); | |
10426 | new_body_length = sizeof(XPVIO); | |
10427 | break; | |
10428 | case SVt_PVFM: | |
10429 | new_body = new_XPVFM(); | |
10430 | new_body_length = sizeof(XPVFM); | |
10431 | break; | |
10432 | ||
10433 | case SVt_PVHV: | |
10434 | new_body_arena = (void **) &PL_xpvhv_root; | |
10435 | new_body_arenaroot = (void **) &PL_xpvhv_arenaroot; | |
10436 | new_body_offset = STRUCT_OFFSET(XPVHV, xhv_fill) | |
10437 | - STRUCT_OFFSET(xpvhv_allocated, xhv_fill); | |
10438 | new_body_length = STRUCT_OFFSET(XPVHV, xmg_stash) | |
10439 | + sizeof (((XPVHV*)SvANY(sstr))->xmg_stash) | |
10440 | - new_body_offset; | |
10441 | goto new_body; | |
10442 | case SVt_PVAV: | |
10443 | new_body_arena = (void **) &PL_xpvav_root; | |
10444 | new_body_arenaroot = (void **) &PL_xpvav_arenaroot; | |
10445 | new_body_offset = STRUCT_OFFSET(XPVAV, xav_fill) | |
10446 | - STRUCT_OFFSET(xpvav_allocated, xav_fill); | |
10447 | new_body_length = STRUCT_OFFSET(XPVHV, xmg_stash) | |
10448 | + sizeof (((XPVHV*)SvANY(sstr))->xmg_stash) | |
10449 | - new_body_offset; | |
10450 | goto new_body; | |
10451 | case SVt_PVBM: | |
10452 | new_body_length = sizeof(XPVBM); | |
10453 | new_body_arena = (void **) &PL_xpvbm_root; | |
10454 | new_body_arenaroot = (void **) &PL_xpvbm_arenaroot; | |
10455 | goto new_body; | |
10456 | case SVt_PVGV: | |
10457 | if (GvUNIQUE((GV*)sstr)) { | |
0abe3f7c | 10458 | /* Do sharing here. */ |
662fb8b2 NC |
10459 | } |
10460 | new_body_length = sizeof(XPVGV); | |
10461 | new_body_arena = (void **) &PL_xpvgv_root; | |
10462 | new_body_arenaroot = (void **) &PL_xpvgv_arenaroot; | |
10463 | goto new_body; | |
10464 | case SVt_PVCV: | |
10465 | new_body_length = sizeof(XPVCV); | |
10466 | new_body_arena = (void **) &PL_xpvcv_root; | |
10467 | new_body_arenaroot = (void **) &PL_xpvcv_arenaroot; | |
10468 | goto new_body; | |
10469 | case SVt_PVLV: | |
10470 | new_body_length = sizeof(XPVLV); | |
10471 | new_body_arena = (void **) &PL_xpvlv_root; | |
10472 | new_body_arenaroot = (void **) &PL_xpvlv_arenaroot; | |
10473 | goto new_body; | |
10474 | case SVt_PVMG: | |
10475 | new_body_length = sizeof(XPVMG); | |
10476 | new_body_arena = (void **) &PL_xpvmg_root; | |
10477 | new_body_arenaroot = (void **) &PL_xpvmg_arenaroot; | |
10478 | goto new_body; | |
10479 | case SVt_PVNV: | |
10480 | new_body_length = sizeof(XPVNV); | |
10481 | new_body_arena = (void **) &PL_xpvnv_root; | |
10482 | new_body_arenaroot = (void **) &PL_xpvnv_arenaroot; | |
10483 | goto new_body; | |
10484 | case SVt_PVIV: | |
10485 | new_body_offset = STRUCT_OFFSET(XPVIV, xpv_cur) | |
10486 | - STRUCT_OFFSET(xpviv_allocated, xpv_cur); | |
10487 | new_body_length = sizeof(XPVIV) - new_body_offset; | |
10488 | new_body_arena = (void **) &PL_xpviv_root; | |
10489 | new_body_arenaroot = (void **) &PL_xpviv_arenaroot; | |
10490 | goto new_body; | |
10491 | case SVt_PV: | |
10492 | new_body_offset = STRUCT_OFFSET(XPV, xpv_cur) | |
10493 | - STRUCT_OFFSET(xpv_allocated, xpv_cur); | |
10494 | new_body_length = sizeof(XPV) - new_body_offset; | |
10495 | new_body_arena = (void **) &PL_xpv_root; | |
10496 | new_body_arenaroot = (void **) &PL_xpv_arenaroot; | |
10497 | new_body: | |
10498 | assert(new_body_length); | |
10499 | #ifndef PURIFY | |
08742458 NC |
10500 | new_body_inline(new_body, new_body_arenaroot, new_body_arena, |
10501 | new_body_length); | |
10502 | new_body = (void*)((char*)new_body - new_body_offset); | |
662fb8b2 NC |
10503 | #else |
10504 | /* We always allocated the full length item with PURIFY */ | |
10505 | new_body_length += new_body_offset; | |
10506 | new_body_offset = 0; | |
10507 | new_body = my_safemalloc(new_body_length); | |
5bd07a3d | 10508 | #endif |
1d7c1841 | 10509 | } |
662fb8b2 NC |
10510 | assert(new_body); |
10511 | SvANY(dstr) = new_body; | |
10512 | ||
10513 | Copy(((char*)SvANY(sstr)) + new_body_offset, | |
10514 | ((char*)SvANY(dstr)) + new_body_offset, | |
10515 | new_body_length, char); | |
10516 | ||
10517 | if (SvTYPE(sstr) != SVt_PVAV && SvTYPE(sstr) != SVt_PVHV) | |
10518 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); | |
10519 | ||
10520 | /* The Copy above means that all the source (unduplicated) pointers | |
10521 | are now in the destination. We can check the flags and the | |
10522 | pointers in either, but it's possible that there's less cache | |
10523 | missing by always going for the destination. | |
10524 | FIXME - instrument and check that assumption */ | |
10525 | if (SvTYPE(sstr) >= SVt_PVMG) { | |
10526 | if (SvMAGIC(dstr)) | |
10527 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(dstr), param)); | |
10528 | if (SvSTASH(dstr)) | |
10529 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(dstr), param)); | |
1d7c1841 | 10530 | } |
662fb8b2 NC |
10531 | |
10532 | switch (SvTYPE(sstr)) { | |
10533 | case SVt_PV: | |
10534 | break; | |
10535 | case SVt_PVIV: | |
10536 | break; | |
10537 | case SVt_PVNV: | |
10538 | break; | |
10539 | case SVt_PVMG: | |
10540 | break; | |
10541 | case SVt_PVBM: | |
10542 | break; | |
10543 | case SVt_PVLV: | |
10544 | /* XXX LvTARGOFF sometimes holds PMOP* when DEBUGGING */ | |
10545 | if (LvTYPE(dstr) == 't') /* for tie: unrefcnted fake (SV**) */ | |
10546 | LvTARG(dstr) = dstr; | |
10547 | else if (LvTYPE(dstr) == 'T') /* for tie: fake HE */ | |
10548 | LvTARG(dstr) = (SV*)he_dup((HE*)LvTARG(dstr), 0, param); | |
10549 | else | |
10550 | LvTARG(dstr) = sv_dup_inc(LvTARG(dstr), param); | |
10551 | break; | |
10552 | case SVt_PVGV: | |
10553 | GvNAME(dstr) = SAVEPVN(GvNAME(dstr), GvNAMELEN(dstr)); | |
e15faf7d NC |
10554 | GvSTASH(dstr) = hv_dup(GvSTASH(dstr), param); |
10555 | /* Don't call sv_add_backref here as it's going to be created | |
10556 | as part of the magic cloning of the symbol table. */ | |
662fb8b2 NC |
10557 | GvGP(dstr) = gp_dup(GvGP(dstr), param); |
10558 | (void)GpREFCNT_inc(GvGP(dstr)); | |
10559 | break; | |
10560 | case SVt_PVIO: | |
10561 | IoIFP(dstr) = fp_dup(IoIFP(dstr), IoTYPE(dstr), param); | |
10562 | if (IoOFP(dstr) == IoIFP(sstr)) | |
10563 | IoOFP(dstr) = IoIFP(dstr); | |
10564 | else | |
10565 | IoOFP(dstr) = fp_dup(IoOFP(dstr), IoTYPE(dstr), param); | |
10566 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
10567 | if (IoDIRP(dstr) && !(IoFLAGS(dstr) & IOf_FAKE_DIRP)) | |
10568 | IoDIRP(dstr) = dirp_dup(IoDIRP(dstr)); | |
10569 | if(IoFLAGS(dstr) & IOf_FAKE_DIRP) { | |
10570 | /* I have no idea why fake dirp (rsfps) | |
10571 | should be treated differently but otherwise | |
10572 | we end up with leaks -- sky*/ | |
10573 | IoTOP_GV(dstr) = gv_dup_inc(IoTOP_GV(dstr), param); | |
10574 | IoFMT_GV(dstr) = gv_dup_inc(IoFMT_GV(dstr), param); | |
10575 | IoBOTTOM_GV(dstr) = gv_dup_inc(IoBOTTOM_GV(dstr), param); | |
10576 | } else { | |
10577 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(dstr), param); | |
10578 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(dstr), param); | |
10579 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(dstr), param); | |
10580 | } | |
10581 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(dstr)); | |
10582 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(dstr)); | |
10583 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(dstr)); | |
10584 | break; | |
10585 | case SVt_PVAV: | |
10586 | if (AvARRAY((AV*)sstr)) { | |
10587 | SV **dst_ary, **src_ary; | |
10588 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
10589 | ||
10590 | src_ary = AvARRAY((AV*)sstr); | |
a02a5408 | 10591 | Newxz(dst_ary, AvMAX((AV*)sstr)+1, SV*); |
662fb8b2 NC |
10592 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); |
10593 | SvPV_set(dstr, (char*)dst_ary); | |
10594 | AvALLOC((AV*)dstr) = dst_ary; | |
10595 | if (AvREAL((AV*)sstr)) { | |
10596 | while (items-- > 0) | |
10597 | *dst_ary++ = sv_dup_inc(*src_ary++, param); | |
10598 | } | |
10599 | else { | |
10600 | while (items-- > 0) | |
10601 | *dst_ary++ = sv_dup(*src_ary++, param); | |
10602 | } | |
10603 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
10604 | while (items-- > 0) { | |
10605 | *dst_ary++ = &PL_sv_undef; | |
10606 | } | |
bfcb3514 | 10607 | } |
662fb8b2 NC |
10608 | else { |
10609 | SvPV_set(dstr, Nullch); | |
10610 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
b79f7545 | 10611 | } |
662fb8b2 NC |
10612 | break; |
10613 | case SVt_PVHV: | |
10614 | { | |
10615 | HEK *hvname = 0; | |
10616 | ||
10617 | if (HvARRAY((HV*)sstr)) { | |
10618 | STRLEN i = 0; | |
10619 | const bool sharekeys = !!HvSHAREKEYS(sstr); | |
10620 | XPVHV * const dxhv = (XPVHV*)SvANY(dstr); | |
10621 | XPVHV * const sxhv = (XPVHV*)SvANY(sstr); | |
10622 | char *darray; | |
a02a5408 | 10623 | Newx(darray, PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1) |
662fb8b2 NC |
10624 | + (SvOOK(sstr) ? sizeof(struct xpvhv_aux) : 0), |
10625 | char); | |
10626 | HvARRAY(dstr) = (HE**)darray; | |
10627 | while (i <= sxhv->xhv_max) { | |
5c4138a0 | 10628 | const HE *source = HvARRAY(sstr)[i]; |
662fb8b2 NC |
10629 | HvARRAY(dstr)[i] = source |
10630 | ? he_dup(source, sharekeys, param) : 0; | |
10631 | ++i; | |
10632 | } | |
10633 | if (SvOOK(sstr)) { | |
10634 | struct xpvhv_aux *saux = HvAUX(sstr); | |
10635 | struct xpvhv_aux *daux = HvAUX(dstr); | |
10636 | /* This flag isn't copied. */ | |
10637 | /* SvOOK_on(hv) attacks the IV flags. */ | |
10638 | SvFLAGS(dstr) |= SVf_OOK; | |
10639 | ||
10640 | hvname = saux->xhv_name; | |
dd690478 NC |
10641 | daux->xhv_name |
10642 | = hvname ? hek_dup(hvname, param) : hvname; | |
662fb8b2 NC |
10643 | |
10644 | daux->xhv_riter = saux->xhv_riter; | |
10645 | daux->xhv_eiter = saux->xhv_eiter | |
dd690478 NC |
10646 | ? he_dup(saux->xhv_eiter, |
10647 | (bool)!!HvSHAREKEYS(sstr), param) : 0; | |
662fb8b2 NC |
10648 | } |
10649 | } | |
10650 | else { | |
10651 | SvPV_set(dstr, Nullch); | |
10652 | } | |
10653 | /* Record stashes for possible cloning in Perl_clone(). */ | |
10654 | if(hvname) | |
10655 | av_push(param->stashes, dstr); | |
10656 | } | |
10657 | break; | |
10658 | case SVt_PVFM: | |
10659 | case SVt_PVCV: | |
10660 | /* NOTE: not refcounted */ | |
10661 | CvSTASH(dstr) = hv_dup(CvSTASH(dstr), param); | |
10662 | OP_REFCNT_LOCK; | |
10663 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(dstr)); | |
10664 | OP_REFCNT_UNLOCK; | |
10665 | if (CvCONST(dstr)) { | |
10666 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(dstr)) ? | |
10667 | SvREFCNT_inc(CvXSUBANY(dstr).any_ptr) : | |
10668 | sv_dup_inc((SV *)CvXSUBANY(dstr).any_ptr, param); | |
10669 | } | |
10670 | /* don't dup if copying back - CvGV isn't refcounted, so the | |
10671 | * duped GV may never be freed. A bit of a hack! DAPM */ | |
10672 | CvGV(dstr) = (param->flags & CLONEf_JOIN_IN) ? | |
10673 | Nullgv : gv_dup(CvGV(dstr), param) ; | |
10674 | if (!(param->flags & CLONEf_COPY_STACKS)) { | |
10675 | CvDEPTH(dstr) = 0; | |
10676 | } | |
10677 | PAD_DUP(CvPADLIST(dstr), CvPADLIST(sstr), param); | |
10678 | CvOUTSIDE(dstr) = | |
10679 | CvWEAKOUTSIDE(sstr) | |
10680 | ? cv_dup( CvOUTSIDE(dstr), param) | |
10681 | : cv_dup_inc(CvOUTSIDE(dstr), param); | |
10682 | if (!CvXSUB(dstr)) | |
10683 | CvFILE(dstr) = SAVEPV(CvFILE(dstr)); | |
10684 | break; | |
bfcb3514 | 10685 | } |
1d7c1841 | 10686 | } |
1d7c1841 GS |
10687 | } |
10688 | ||
10689 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
10690 | ++PL_sv_objcount; | |
10691 | ||
10692 | return dstr; | |
d2d73c3e | 10693 | } |
1d7c1841 | 10694 | |
645c22ef DM |
10695 | /* duplicate a context */ |
10696 | ||
1d7c1841 | 10697 | PERL_CONTEXT * |
a8fc9800 | 10698 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
10699 | { |
10700 | PERL_CONTEXT *ncxs; | |
10701 | ||
10702 | if (!cxs) | |
10703 | return (PERL_CONTEXT*)NULL; | |
10704 | ||
10705 | /* look for it in the table first */ | |
10706 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
10707 | if (ncxs) | |
10708 | return ncxs; | |
10709 | ||
10710 | /* create anew and remember what it is */ | |
a02a5408 | 10711 | Newxz(ncxs, max + 1, PERL_CONTEXT); |
1d7c1841 GS |
10712 | ptr_table_store(PL_ptr_table, cxs, ncxs); |
10713 | ||
10714 | while (ix >= 0) { | |
10715 | PERL_CONTEXT *cx = &cxs[ix]; | |
10716 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
10717 | ncx->cx_type = cx->cx_type; | |
10718 | if (CxTYPE(cx) == CXt_SUBST) { | |
10719 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
10720 | } | |
10721 | else { | |
10722 | ncx->blk_oldsp = cx->blk_oldsp; | |
10723 | ncx->blk_oldcop = cx->blk_oldcop; | |
1d7c1841 GS |
10724 | ncx->blk_oldmarksp = cx->blk_oldmarksp; |
10725 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
10726 | ncx->blk_oldpm = cx->blk_oldpm; | |
10727 | ncx->blk_gimme = cx->blk_gimme; | |
10728 | switch (CxTYPE(cx)) { | |
10729 | case CXt_SUB: | |
10730 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
10731 | ? cv_dup_inc(cx->blk_sub.cv, param) |
10732 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 10733 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 10734 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 10735 | : Nullav); |
d2d73c3e | 10736 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
10737 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
10738 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
10739 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
f39bc417 | 10740 | ncx->blk_sub.retop = cx->blk_sub.retop; |
1d7c1841 GS |
10741 | break; |
10742 | case CXt_EVAL: | |
10743 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
10744 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 10745 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 10746 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 10747 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
f39bc417 | 10748 | ncx->blk_eval.retop = cx->blk_eval.retop; |
1d7c1841 GS |
10749 | break; |
10750 | case CXt_LOOP: | |
10751 | ncx->blk_loop.label = cx->blk_loop.label; | |
10752 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
10753 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
10754 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
10755 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
10756 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
10757 | ? cx->blk_loop.iterdata | |
d2d73c3e | 10758 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
f3548bdc DM |
10759 | ncx->blk_loop.oldcomppad |
10760 | = (PAD*)ptr_table_fetch(PL_ptr_table, | |
10761 | cx->blk_loop.oldcomppad); | |
d2d73c3e AB |
10762 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
10763 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
10764 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
10765 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
10766 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
10767 | break; | |
10768 | case CXt_FORMAT: | |
d2d73c3e AB |
10769 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
10770 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
10771 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 | 10772 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
f39bc417 | 10773 | ncx->blk_sub.retop = cx->blk_sub.retop; |
1d7c1841 GS |
10774 | break; |
10775 | case CXt_BLOCK: | |
10776 | case CXt_NULL: | |
10777 | break; | |
10778 | } | |
10779 | } | |
10780 | --ix; | |
10781 | } | |
10782 | return ncxs; | |
10783 | } | |
10784 | ||
645c22ef DM |
10785 | /* duplicate a stack info structure */ |
10786 | ||
1d7c1841 | 10787 | PERL_SI * |
a8fc9800 | 10788 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
10789 | { |
10790 | PERL_SI *nsi; | |
10791 | ||
10792 | if (!si) | |
10793 | return (PERL_SI*)NULL; | |
10794 | ||
10795 | /* look for it in the table first */ | |
10796 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
10797 | if (nsi) | |
10798 | return nsi; | |
10799 | ||
10800 | /* create anew and remember what it is */ | |
a02a5408 | 10801 | Newxz(nsi, 1, PERL_SI); |
1d7c1841 GS |
10802 | ptr_table_store(PL_ptr_table, si, nsi); |
10803 | ||
d2d73c3e | 10804 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
10805 | nsi->si_cxix = si->si_cxix; |
10806 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 10807 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 10808 | nsi->si_type = si->si_type; |
d2d73c3e AB |
10809 | nsi->si_prev = si_dup(si->si_prev, param); |
10810 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
10811 | nsi->si_markoff = si->si_markoff; |
10812 | ||
10813 | return nsi; | |
10814 | } | |
10815 | ||
10816 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
10817 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
10818 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
10819 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
10820 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
10821 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
38d8b13e HS |
10822 | #define POPBOOL(ss,ix) ((ss)[--(ix)].any_bool) |
10823 | #define TOPBOOL(ss,ix) ((ss)[ix].any_bool) | |
1d7c1841 GS |
10824 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) |
10825 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
10826 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
10827 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
10828 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
10829 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
10830 | ||
10831 | /* XXXXX todo */ | |
10832 | #define pv_dup_inc(p) SAVEPV(p) | |
10833 | #define pv_dup(p) SAVEPV(p) | |
10834 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
10835 | ||
645c22ef DM |
10836 | /* map any object to the new equivent - either something in the |
10837 | * ptr table, or something in the interpreter structure | |
10838 | */ | |
10839 | ||
1d7c1841 | 10840 | void * |
53c1dcc0 | 10841 | Perl_any_dup(pTHX_ void *v, const PerlInterpreter *proto_perl) |
1d7c1841 GS |
10842 | { |
10843 | void *ret; | |
10844 | ||
10845 | if (!v) | |
10846 | return (void*)NULL; | |
10847 | ||
10848 | /* look for it in the table first */ | |
10849 | ret = ptr_table_fetch(PL_ptr_table, v); | |
10850 | if (ret) | |
10851 | return ret; | |
10852 | ||
10853 | /* see if it is part of the interpreter structure */ | |
10854 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 10855 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 10856 | else { |
1d7c1841 | 10857 | ret = v; |
05ec9bb3 | 10858 | } |
1d7c1841 GS |
10859 | |
10860 | return ret; | |
10861 | } | |
10862 | ||
645c22ef DM |
10863 | /* duplicate the save stack */ |
10864 | ||
1d7c1841 | 10865 | ANY * |
a8fc9800 | 10866 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 | 10867 | { |
53c1dcc0 AL |
10868 | ANY * const ss = proto_perl->Tsavestack; |
10869 | const I32 max = proto_perl->Tsavestack_max; | |
10870 | I32 ix = proto_perl->Tsavestack_ix; | |
1d7c1841 GS |
10871 | ANY *nss; |
10872 | SV *sv; | |
10873 | GV *gv; | |
10874 | AV *av; | |
10875 | HV *hv; | |
10876 | void* ptr; | |
10877 | int intval; | |
10878 | long longval; | |
10879 | GP *gp; | |
10880 | IV iv; | |
c4e33207 | 10881 | char *c = NULL; |
1d7c1841 | 10882 | void (*dptr) (void*); |
acfe0abc | 10883 | void (*dxptr) (pTHX_ void*); |
1d7c1841 | 10884 | |
a02a5408 | 10885 | Newxz(nss, max, ANY); |
1d7c1841 GS |
10886 | |
10887 | while (ix > 0) { | |
b464bac0 | 10888 | I32 i = POPINT(ss,ix); |
1d7c1841 GS |
10889 | TOPINT(nss,ix) = i; |
10890 | switch (i) { | |
10891 | case SAVEt_ITEM: /* normal string */ | |
10892 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10893 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10894 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 10895 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10896 | break; |
10897 | case SAVEt_SV: /* scalar reference */ | |
10898 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10899 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 10900 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10901 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 10902 | break; |
f4dd75d9 GS |
10903 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
10904 | c = (char*)POPPTR(ss,ix); | |
10905 | TOPPTR(nss,ix) = pv_dup(c); | |
10906 | ptr = POPPTR(ss,ix); | |
10907 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10908 | break; | |
05ec9bb3 NIS |
10909 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
10910 | c = (char*)POPPTR(ss,ix); | |
10911 | TOPPTR(nss,ix) = savesharedpv(c); | |
10912 | ptr = POPPTR(ss,ix); | |
10913 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10914 | break; | |
1d7c1841 GS |
10915 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
10916 | case SAVEt_SVREF: /* scalar reference */ | |
10917 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10918 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
10919 | ptr = POPPTR(ss,ix); |
10920 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
10921 | break; | |
10922 | case SAVEt_AV: /* array reference */ | |
10923 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10924 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 10925 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10926 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10927 | break; |
10928 | case SAVEt_HV: /* hash reference */ | |
10929 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10930 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 10931 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 10932 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10933 | break; |
10934 | case SAVEt_INT: /* int reference */ | |
10935 | ptr = POPPTR(ss,ix); | |
10936 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10937 | intval = (int)POPINT(ss,ix); | |
10938 | TOPINT(nss,ix) = intval; | |
10939 | break; | |
10940 | case SAVEt_LONG: /* long reference */ | |
10941 | ptr = POPPTR(ss,ix); | |
10942 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10943 | longval = (long)POPLONG(ss,ix); | |
10944 | TOPLONG(nss,ix) = longval; | |
10945 | break; | |
10946 | case SAVEt_I32: /* I32 reference */ | |
10947 | case SAVEt_I16: /* I16 reference */ | |
10948 | case SAVEt_I8: /* I8 reference */ | |
10949 | ptr = POPPTR(ss,ix); | |
10950 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10951 | i = POPINT(ss,ix); | |
10952 | TOPINT(nss,ix) = i; | |
10953 | break; | |
10954 | case SAVEt_IV: /* IV reference */ | |
10955 | ptr = POPPTR(ss,ix); | |
10956 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10957 | iv = POPIV(ss,ix); | |
10958 | TOPIV(nss,ix) = iv; | |
10959 | break; | |
10960 | case SAVEt_SPTR: /* SV* reference */ | |
10961 | ptr = POPPTR(ss,ix); | |
10962 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10963 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 10964 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
10965 | break; |
10966 | case SAVEt_VPTR: /* random* reference */ | |
10967 | ptr = POPPTR(ss,ix); | |
10968 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10969 | ptr = POPPTR(ss,ix); | |
10970 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10971 | break; | |
10972 | case SAVEt_PPTR: /* char* reference */ | |
10973 | ptr = POPPTR(ss,ix); | |
10974 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10975 | c = (char*)POPPTR(ss,ix); | |
10976 | TOPPTR(nss,ix) = pv_dup(c); | |
10977 | break; | |
10978 | case SAVEt_HPTR: /* HV* reference */ | |
10979 | ptr = POPPTR(ss,ix); | |
10980 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10981 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 10982 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
10983 | break; |
10984 | case SAVEt_APTR: /* AV* reference */ | |
10985 | ptr = POPPTR(ss,ix); | |
10986 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
10987 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 10988 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
10989 | break; |
10990 | case SAVEt_NSTAB: | |
10991 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 10992 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
10993 | break; |
10994 | case SAVEt_GP: /* scalar reference */ | |
10995 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 10996 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
10997 | (void)GpREFCNT_inc(gp); |
10998 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 10999 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
11000 | c = (char*)POPPTR(ss,ix); |
11001 | TOPPTR(nss,ix) = pv_dup(c); | |
11002 | iv = POPIV(ss,ix); | |
11003 | TOPIV(nss,ix) = iv; | |
11004 | iv = POPIV(ss,ix); | |
11005 | TOPIV(nss,ix) = iv; | |
11006 | break; | |
11007 | case SAVEt_FREESV: | |
26d9b02f | 11008 | case SAVEt_MORTALIZESV: |
1d7c1841 | 11009 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 11010 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
11011 | break; |
11012 | case SAVEt_FREEOP: | |
11013 | ptr = POPPTR(ss,ix); | |
11014 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
11015 | /* these are assumed to be refcounted properly */ | |
53c1dcc0 | 11016 | OP *o; |
1d7c1841 GS |
11017 | switch (((OP*)ptr)->op_type) { |
11018 | case OP_LEAVESUB: | |
11019 | case OP_LEAVESUBLV: | |
11020 | case OP_LEAVEEVAL: | |
11021 | case OP_LEAVE: | |
11022 | case OP_SCOPE: | |
11023 | case OP_LEAVEWRITE: | |
e977893f GS |
11024 | TOPPTR(nss,ix) = ptr; |
11025 | o = (OP*)ptr; | |
11026 | OpREFCNT_inc(o); | |
1d7c1841 GS |
11027 | break; |
11028 | default: | |
11029 | TOPPTR(nss,ix) = Nullop; | |
11030 | break; | |
11031 | } | |
11032 | } | |
11033 | else | |
11034 | TOPPTR(nss,ix) = Nullop; | |
11035 | break; | |
11036 | case SAVEt_FREEPV: | |
11037 | c = (char*)POPPTR(ss,ix); | |
11038 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
11039 | break; | |
11040 | case SAVEt_CLEARSV: | |
11041 | longval = POPLONG(ss,ix); | |
11042 | TOPLONG(nss,ix) = longval; | |
11043 | break; | |
11044 | case SAVEt_DELETE: | |
11045 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 11046 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
11047 | c = (char*)POPPTR(ss,ix); |
11048 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
11049 | i = POPINT(ss,ix); | |
11050 | TOPINT(nss,ix) = i; | |
11051 | break; | |
11052 | case SAVEt_DESTRUCTOR: | |
11053 | ptr = POPPTR(ss,ix); | |
11054 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
11055 | dptr = POPDPTR(ss,ix); | |
8141890a JH |
11056 | TOPDPTR(nss,ix) = DPTR2FPTR(void (*)(void*), |
11057 | any_dup(FPTR2DPTR(void *, dptr), | |
11058 | proto_perl)); | |
1d7c1841 GS |
11059 | break; |
11060 | case SAVEt_DESTRUCTOR_X: | |
11061 | ptr = POPPTR(ss,ix); | |
11062 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
11063 | dxptr = POPDXPTR(ss,ix); | |
8141890a JH |
11064 | TOPDXPTR(nss,ix) = DPTR2FPTR(void (*)(pTHX_ void*), |
11065 | any_dup(FPTR2DPTR(void *, dxptr), | |
11066 | proto_perl)); | |
1d7c1841 GS |
11067 | break; |
11068 | case SAVEt_REGCONTEXT: | |
11069 | case SAVEt_ALLOC: | |
11070 | i = POPINT(ss,ix); | |
11071 | TOPINT(nss,ix) = i; | |
11072 | ix -= i; | |
11073 | break; | |
11074 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
11075 | i = POPINT(ss,ix); | |
11076 | TOPINT(nss,ix) = i; | |
11077 | break; | |
11078 | case SAVEt_AELEM: /* array element */ | |
11079 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11080 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
11081 | i = POPINT(ss,ix); |
11082 | TOPINT(nss,ix) = i; | |
11083 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 11084 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
11085 | break; |
11086 | case SAVEt_HELEM: /* hash element */ | |
11087 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11088 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 11089 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 11090 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 11091 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 11092 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
11093 | break; |
11094 | case SAVEt_OP: | |
11095 | ptr = POPPTR(ss,ix); | |
11096 | TOPPTR(nss,ix) = ptr; | |
11097 | break; | |
11098 | case SAVEt_HINTS: | |
11099 | i = POPINT(ss,ix); | |
11100 | TOPINT(nss,ix) = i; | |
11101 | break; | |
c4410b1b GS |
11102 | case SAVEt_COMPPAD: |
11103 | av = (AV*)POPPTR(ss,ix); | |
58ed4fbe | 11104 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 11105 | break; |
c3564e5c GS |
11106 | case SAVEt_PADSV: |
11107 | longval = (long)POPLONG(ss,ix); | |
11108 | TOPLONG(nss,ix) = longval; | |
11109 | ptr = POPPTR(ss,ix); | |
11110 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11111 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11112 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 11113 | break; |
a1bb4754 | 11114 | case SAVEt_BOOL: |
38d8b13e | 11115 | ptr = POPPTR(ss,ix); |
b9609c01 | 11116 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); |
38d8b13e | 11117 | longval = (long)POPBOOL(ss,ix); |
b9609c01 | 11118 | TOPBOOL(nss,ix) = (bool)longval; |
a1bb4754 | 11119 | break; |
8bd2680e MHM |
11120 | case SAVEt_SET_SVFLAGS: |
11121 | i = POPINT(ss,ix); | |
11122 | TOPINT(nss,ix) = i; | |
11123 | i = POPINT(ss,ix); | |
11124 | TOPINT(nss,ix) = i; | |
11125 | sv = (SV*)POPPTR(ss,ix); | |
11126 | TOPPTR(nss,ix) = sv_dup(sv, param); | |
11127 | break; | |
1d7c1841 GS |
11128 | default: |
11129 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
11130 | } | |
11131 | } | |
11132 | ||
11133 | return nss; | |
11134 | } | |
11135 | ||
9660f481 DM |
11136 | |
11137 | /* if sv is a stash, call $class->CLONE_SKIP(), and set the SVphv_CLONEABLE | |
11138 | * flag to the result. This is done for each stash before cloning starts, | |
11139 | * so we know which stashes want their objects cloned */ | |
11140 | ||
11141 | static void | |
11142 | do_mark_cloneable_stash(pTHX_ SV *sv) | |
11143 | { | |
53c1dcc0 | 11144 | const HEK * const hvname = HvNAME_HEK((HV*)sv); |
bfcb3514 | 11145 | if (hvname) { |
53c1dcc0 | 11146 | GV* const cloner = gv_fetchmethod_autoload((HV*)sv, "CLONE_SKIP", 0); |
9660f481 DM |
11147 | SvFLAGS(sv) |= SVphv_CLONEABLE; /* clone objects by default */ |
11148 | if (cloner && GvCV(cloner)) { | |
11149 | dSP; | |
11150 | UV status; | |
11151 | ||
11152 | ENTER; | |
11153 | SAVETMPS; | |
11154 | PUSHMARK(SP); | |
84bda14a | 11155 | XPUSHs(sv_2mortal(newSVhek(hvname))); |
9660f481 DM |
11156 | PUTBACK; |
11157 | call_sv((SV*)GvCV(cloner), G_SCALAR); | |
11158 | SPAGAIN; | |
11159 | status = POPu; | |
11160 | PUTBACK; | |
11161 | FREETMPS; | |
11162 | LEAVE; | |
11163 | if (status) | |
11164 | SvFLAGS(sv) &= ~SVphv_CLONEABLE; | |
11165 | } | |
11166 | } | |
11167 | } | |
11168 | ||
11169 | ||
11170 | ||
645c22ef DM |
11171 | /* |
11172 | =for apidoc perl_clone | |
11173 | ||
11174 | Create and return a new interpreter by cloning the current one. | |
11175 | ||
4be49ee6 | 11176 | perl_clone takes these flags as parameters: |
6a78b4db | 11177 | |
7a5fa8a2 NIS |
11178 | CLONEf_COPY_STACKS - is used to, well, copy the stacks also, |
11179 | without it we only clone the data and zero the stacks, | |
11180 | with it we copy the stacks and the new perl interpreter is | |
11181 | ready to run at the exact same point as the previous one. | |
11182 | The pseudo-fork code uses COPY_STACKS while the | |
6a78b4db AB |
11183 | threads->new doesn't. |
11184 | ||
11185 | CLONEf_KEEP_PTR_TABLE | |
7a5fa8a2 NIS |
11186 | perl_clone keeps a ptr_table with the pointer of the old |
11187 | variable as a key and the new variable as a value, | |
11188 | this allows it to check if something has been cloned and not | |
11189 | clone it again but rather just use the value and increase the | |
11190 | refcount. If KEEP_PTR_TABLE is not set then perl_clone will kill | |
11191 | the ptr_table using the function | |
11192 | C<ptr_table_free(PL_ptr_table); PL_ptr_table = NULL;>, | |
11193 | reason to keep it around is if you want to dup some of your own | |
11194 | variable who are outside the graph perl scans, example of this | |
6a78b4db AB |
11195 | code is in threads.xs create |
11196 | ||
11197 | CLONEf_CLONE_HOST | |
7a5fa8a2 NIS |
11198 | This is a win32 thing, it is ignored on unix, it tells perls |
11199 | win32host code (which is c++) to clone itself, this is needed on | |
11200 | win32 if you want to run two threads at the same time, | |
11201 | if you just want to do some stuff in a separate perl interpreter | |
11202 | and then throw it away and return to the original one, | |
6a78b4db AB |
11203 | you don't need to do anything. |
11204 | ||
645c22ef DM |
11205 | =cut |
11206 | */ | |
11207 | ||
11208 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
11209 | EXTERN_C PerlInterpreter * |
11210 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 11211 | |
1d7c1841 GS |
11212 | PerlInterpreter * |
11213 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
11214 | { | |
27da23d5 | 11215 | dVAR; |
1d7c1841 | 11216 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
11217 | |
11218 | /* perlhost.h so we need to call into it | |
11219 | to clone the host, CPerlHost should have a c interface, sky */ | |
11220 | ||
11221 | if (flags & CLONEf_CLONE_HOST) { | |
11222 | return perl_clone_host(proto_perl,flags); | |
11223 | } | |
11224 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
11225 | proto_perl->IMem, |
11226 | proto_perl->IMemShared, | |
11227 | proto_perl->IMemParse, | |
11228 | proto_perl->IEnv, | |
11229 | proto_perl->IStdIO, | |
11230 | proto_perl->ILIO, | |
11231 | proto_perl->IDir, | |
11232 | proto_perl->ISock, | |
11233 | proto_perl->IProc); | |
11234 | } | |
11235 | ||
11236 | PerlInterpreter * | |
11237 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
11238 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
11239 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
11240 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
11241 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
11242 | struct IPerlProc* ipP) | |
11243 | { | |
11244 | /* XXX many of the string copies here can be optimized if they're | |
11245 | * constants; they need to be allocated as common memory and just | |
11246 | * their pointers copied. */ | |
11247 | ||
8fc9efbd | 11248 | IV i; |
64aa0685 GS |
11249 | CLONE_PARAMS clone_params; |
11250 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 11251 | |
1d7c1841 | 11252 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
9660f481 DM |
11253 | /* for each stash, determine whether its objects should be cloned */ |
11254 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 11255 | PERL_SET_THX(my_perl); |
1d7c1841 | 11256 | |
acfe0abc | 11257 | # ifdef DEBUGGING |
a4530404 | 11258 | Poison(my_perl, 1, PerlInterpreter); |
fd0854ff | 11259 | PL_op = Nullop; |
c008732b | 11260 | PL_curcop = (COP *)Nullop; |
1d7c1841 GS |
11261 | PL_markstack = 0; |
11262 | PL_scopestack = 0; | |
11263 | PL_savestack = 0; | |
22f7c9c9 JH |
11264 | PL_savestack_ix = 0; |
11265 | PL_savestack_max = -1; | |
66fe0623 | 11266 | PL_sig_pending = 0; |
25596c82 | 11267 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 11268 | # else /* !DEBUGGING */ |
1d7c1841 | 11269 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 11270 | # endif /* DEBUGGING */ |
1d7c1841 GS |
11271 | |
11272 | /* host pointers */ | |
11273 | PL_Mem = ipM; | |
11274 | PL_MemShared = ipMS; | |
11275 | PL_MemParse = ipMP; | |
11276 | PL_Env = ipE; | |
11277 | PL_StdIO = ipStd; | |
11278 | PL_LIO = ipLIO; | |
11279 | PL_Dir = ipD; | |
11280 | PL_Sock = ipS; | |
11281 | PL_Proc = ipP; | |
1d7c1841 GS |
11282 | #else /* !PERL_IMPLICIT_SYS */ |
11283 | IV i; | |
64aa0685 GS |
11284 | CLONE_PARAMS clone_params; |
11285 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 11286 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
9660f481 DM |
11287 | /* for each stash, determine whether its objects should be cloned */ |
11288 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 11289 | PERL_SET_THX(my_perl); |
1d7c1841 GS |
11290 | |
11291 | # ifdef DEBUGGING | |
a4530404 | 11292 | Poison(my_perl, 1, PerlInterpreter); |
fd0854ff | 11293 | PL_op = Nullop; |
c008732b | 11294 | PL_curcop = (COP *)Nullop; |
1d7c1841 GS |
11295 | PL_markstack = 0; |
11296 | PL_scopestack = 0; | |
11297 | PL_savestack = 0; | |
22f7c9c9 JH |
11298 | PL_savestack_ix = 0; |
11299 | PL_savestack_max = -1; | |
66fe0623 | 11300 | PL_sig_pending = 0; |
25596c82 | 11301 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
11302 | # else /* !DEBUGGING */ |
11303 | Zero(my_perl, 1, PerlInterpreter); | |
11304 | # endif /* DEBUGGING */ | |
11305 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 11306 | param->flags = flags; |
59b40662 | 11307 | param->proto_perl = proto_perl; |
1d7c1841 GS |
11308 | |
11309 | /* arena roots */ | |
612f20c3 | 11310 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 11311 | PL_xnv_root = NULL; |
612f20c3 | 11312 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 11313 | PL_xpv_root = NULL; |
612f20c3 | 11314 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 11315 | PL_xpviv_root = NULL; |
612f20c3 | 11316 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 11317 | PL_xpvnv_root = NULL; |
612f20c3 | 11318 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 11319 | PL_xpvcv_root = NULL; |
612f20c3 | 11320 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 11321 | PL_xpvav_root = NULL; |
612f20c3 | 11322 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 11323 | PL_xpvhv_root = NULL; |
612f20c3 | 11324 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 11325 | PL_xpvmg_root = NULL; |
7552b40b DM |
11326 | PL_xpvgv_arenaroot = NULL; |
11327 | PL_xpvgv_root = NULL; | |
612f20c3 | 11328 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 11329 | PL_xpvlv_root = NULL; |
612f20c3 | 11330 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 11331 | PL_xpvbm_root = NULL; |
612f20c3 | 11332 | PL_he_arenaroot = NULL; |
1d7c1841 | 11333 | PL_he_root = NULL; |
892b45be | 11334 | #if defined(USE_ITHREADS) |
32e691d0 NC |
11335 | PL_pte_arenaroot = NULL; |
11336 | PL_pte_root = NULL; | |
892b45be | 11337 | #endif |
1d7c1841 GS |
11338 | PL_nice_chunk = NULL; |
11339 | PL_nice_chunk_size = 0; | |
11340 | PL_sv_count = 0; | |
11341 | PL_sv_objcount = 0; | |
11342 | PL_sv_root = Nullsv; | |
11343 | PL_sv_arenaroot = Nullsv; | |
11344 | ||
11345 | PL_debug = proto_perl->Idebug; | |
11346 | ||
8df990a8 NC |
11347 | PL_hash_seed = proto_perl->Ihash_seed; |
11348 | PL_rehash_seed = proto_perl->Irehash_seed; | |
11349 | ||
e5dd39fc | 11350 | #ifdef USE_REENTRANT_API |
68853529 SB |
11351 | /* XXX: things like -Dm will segfault here in perlio, but doing |
11352 | * PERL_SET_CONTEXT(proto_perl); | |
11353 | * breaks too many other things | |
11354 | */ | |
59bd0823 | 11355 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
11356 | #endif |
11357 | ||
1d7c1841 GS |
11358 | /* create SV map for pointer relocation */ |
11359 | PL_ptr_table = ptr_table_new(); | |
11360 | ||
11361 | /* initialize these special pointers as early as possible */ | |
11362 | SvANY(&PL_sv_undef) = NULL; | |
11363 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
11364 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
11365 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
11366 | ||
1d7c1841 | 11367 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 | 11368 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
0309f36e NC |
11369 | SvFLAGS(&PL_sv_no) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11370 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
f880fe2f | 11371 | SvPV_set(&PL_sv_no, SAVEPVN(PL_No, 0)); |
b162af07 SP |
11372 | SvCUR_set(&PL_sv_no, 0); |
11373 | SvLEN_set(&PL_sv_no, 1); | |
45977657 | 11374 | SvIV_set(&PL_sv_no, 0); |
9d6ce603 | 11375 | SvNV_set(&PL_sv_no, 0); |
1d7c1841 GS |
11376 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); |
11377 | ||
1d7c1841 | 11378 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 | 11379 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
0309f36e NC |
11380 | SvFLAGS(&PL_sv_yes) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11381 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
f880fe2f | 11382 | SvPV_set(&PL_sv_yes, SAVEPVN(PL_Yes, 1)); |
b162af07 SP |
11383 | SvCUR_set(&PL_sv_yes, 1); |
11384 | SvLEN_set(&PL_sv_yes, 2); | |
45977657 | 11385 | SvIV_set(&PL_sv_yes, 1); |
9d6ce603 | 11386 | SvNV_set(&PL_sv_yes, 1); |
1d7c1841 GS |
11387 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); |
11388 | ||
05ec9bb3 | 11389 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
11390 | PL_strtab = newHV(); |
11391 | HvSHAREKEYS_off(PL_strtab); | |
c4a9c09d | 11392 | hv_ksplit(PL_strtab, HvTOTALKEYS(proto_perl->Istrtab)); |
1d7c1841 GS |
11393 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); |
11394 | ||
05ec9bb3 NIS |
11395 | PL_compiling = proto_perl->Icompiling; |
11396 | ||
11397 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
11398 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
11399 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
11400 | ||
11401 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
11402 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
11403 | ||
1d7c1841 GS |
11404 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
11405 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 11406 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 11407 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 11408 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
11409 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
11410 | ||
11411 | /* pseudo environmental stuff */ | |
11412 | PL_origargc = proto_perl->Iorigargc; | |
e2975953 | 11413 | PL_origargv = proto_perl->Iorigargv; |
d2d73c3e | 11414 | |
d2d73c3e AB |
11415 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
11416 | ||
d419787a SH |
11417 | /* Set tainting stuff before PerlIO_debug can possibly get called */ |
11418 | PL_tainting = proto_perl->Itainting; | |
11419 | PL_taint_warn = proto_perl->Itaint_warn; | |
11420 | ||
a1ea730d | 11421 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
11422 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
11423 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 11424 | #endif |
d2d73c3e AB |
11425 | |
11426 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
11427 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
11428 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 11429 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
11430 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
11431 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
11432 | |
11433 | /* switches */ | |
11434 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 11435 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
11436 | PL_localpatches = proto_perl->Ilocalpatches; |
11437 | PL_splitstr = proto_perl->Isplitstr; | |
11438 | PL_preprocess = proto_perl->Ipreprocess; | |
11439 | PL_minus_n = proto_perl->Iminus_n; | |
11440 | PL_minus_p = proto_perl->Iminus_p; | |
11441 | PL_minus_l = proto_perl->Iminus_l; | |
11442 | PL_minus_a = proto_perl->Iminus_a; | |
11443 | PL_minus_F = proto_perl->Iminus_F; | |
11444 | PL_doswitches = proto_perl->Idoswitches; | |
11445 | PL_dowarn = proto_perl->Idowarn; | |
11446 | PL_doextract = proto_perl->Idoextract; | |
11447 | PL_sawampersand = proto_perl->Isawampersand; | |
11448 | PL_unsafe = proto_perl->Iunsafe; | |
11449 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 11450 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
11451 | PL_perldb = proto_perl->Iperldb; |
11452 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 11453 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
11454 | |
11455 | /* magical thingies */ | |
11456 | /* XXX time(&PL_basetime) when asked for? */ | |
11457 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 11458 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
11459 | |
11460 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
11461 | PL_multiline = proto_perl->Imultiline; | |
11462 | PL_statusvalue = proto_perl->Istatusvalue; | |
11463 | #ifdef VMS | |
11464 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
11465 | #endif | |
0a378802 | 11466 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 11467 | |
4a4c6fe3 | 11468 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
11469 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
11470 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 11471 | |
d2f185dc AMS |
11472 | /* Clone the regex array */ |
11473 | PL_regex_padav = newAV(); | |
11474 | { | |
a3b680e6 | 11475 | const I32 len = av_len((AV*)proto_perl->Iregex_padav); |
53c1dcc0 | 11476 | SV** const regexen = AvARRAY((AV*)proto_perl->Iregex_padav); |
b464bac0 | 11477 | IV i; |
0f95fc41 AB |
11478 | av_push(PL_regex_padav, |
11479 | sv_dup_inc(regexen[0],param)); | |
11480 | for(i = 1; i <= len; i++) { | |
11481 | if(SvREPADTMP(regexen[i])) { | |
11482 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 11483 | } else { |
0f95fc41 AB |
11484 | av_push(PL_regex_padav, |
11485 | SvREFCNT_inc( | |
8cf8f3d1 | 11486 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 11487 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
11488 | )); |
11489 | } | |
d2f185dc AMS |
11490 | } |
11491 | } | |
11492 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 11493 | |
1d7c1841 | 11494 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
11495 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
11496 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
11497 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
11498 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
11499 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
11500 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
11501 | |
11502 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 11503 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
11504 | |
11505 | /* shortcuts to misc objects */ | |
d2d73c3e | 11506 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
11507 | |
11508 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
11509 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
11510 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
11511 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
11512 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
11513 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
11514 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
06492da6 | 11515 | PL_DBassertion = sv_dup(proto_perl->IDBassertion, param); |
d2d73c3e AB |
11516 | PL_lineary = av_dup(proto_perl->Ilineary, param); |
11517 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
11518 | |
11519 | /* symbol tables */ | |
d2d73c3e AB |
11520 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
11521 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
d2d73c3e AB |
11522 | PL_debstash = hv_dup(proto_perl->Idebstash, param); |
11523 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
11524 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
11525 | ||
11526 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 11527 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
ece599bd | 11528 | PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); |
d2d73c3e AB |
11529 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
11530 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
11531 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
11532 | |
11533 | PL_sub_generation = proto_perl->Isub_generation; | |
11534 | ||
11535 | /* funky return mechanisms */ | |
11536 | PL_forkprocess = proto_perl->Iforkprocess; | |
11537 | ||
11538 | /* subprocess state */ | |
d2d73c3e | 11539 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
11540 | |
11541 | /* internal state */ | |
1d7c1841 GS |
11542 | PL_maxo = proto_perl->Imaxo; |
11543 | if (proto_perl->Iop_mask) | |
11544 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
11545 | else | |
11546 | PL_op_mask = Nullch; | |
06492da6 | 11547 | /* PL_asserting = proto_perl->Iasserting; */ |
1d7c1841 GS |
11548 | |
11549 | /* current interpreter roots */ | |
d2d73c3e | 11550 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
11551 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
11552 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 11553 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
11554 | PL_eval_start = proto_perl->Ieval_start; |
11555 | ||
11556 | /* runtime control stuff */ | |
11557 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
11558 | PL_copline = proto_perl->Icopline; | |
11559 | ||
11560 | PL_filemode = proto_perl->Ifilemode; | |
11561 | PL_lastfd = proto_perl->Ilastfd; | |
11562 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
11563 | PL_Argv = NULL; | |
11564 | PL_Cmd = Nullch; | |
11565 | PL_gensym = proto_perl->Igensym; | |
11566 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 11567 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
11568 | PL_laststatval = proto_perl->Ilaststatval; |
11569 | PL_laststype = proto_perl->Ilaststype; | |
11570 | PL_mess_sv = Nullsv; | |
11571 | ||
d2d73c3e | 11572 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
11573 | |
11574 | /* interpreter atexit processing */ | |
11575 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
11576 | if (PL_exitlistlen) { | |
a02a5408 | 11577 | Newx(PL_exitlist, PL_exitlistlen, PerlExitListEntry); |
1d7c1841 GS |
11578 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); |
11579 | } | |
11580 | else | |
11581 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 11582 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
11583 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
11584 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
11585 | |
11586 | PL_profiledata = NULL; | |
a8fc9800 | 11587 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 11588 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 11589 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 11590 | |
d2d73c3e | 11591 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
dd2155a4 DM |
11592 | |
11593 | PAD_CLONE_VARS(proto_perl, param); | |
1d7c1841 GS |
11594 | |
11595 | #ifdef HAVE_INTERP_INTERN | |
11596 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
11597 | #endif | |
11598 | ||
11599 | /* more statics moved here */ | |
11600 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 11601 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
11602 | |
11603 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
11604 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
11605 | ||
11606 | PL_uid = proto_perl->Iuid; | |
11607 | PL_euid = proto_perl->Ieuid; | |
11608 | PL_gid = proto_perl->Igid; | |
11609 | PL_egid = proto_perl->Iegid; | |
11610 | PL_nomemok = proto_perl->Inomemok; | |
11611 | PL_an = proto_perl->Ian; | |
1d7c1841 GS |
11612 | PL_evalseq = proto_perl->Ievalseq; |
11613 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
11614 | PL_origalen = proto_perl->Iorigalen; | |
11615 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
11616 | PL_osname = SAVEPV(proto_perl->Iosname); | |
1d7c1841 GS |
11617 | PL_sighandlerp = proto_perl->Isighandlerp; |
11618 | ||
1d7c1841 GS |
11619 | PL_runops = proto_perl->Irunops; |
11620 | ||
11621 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
11622 | ||
11623 | #ifdef CSH | |
11624 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 11625 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
11626 | #endif |
11627 | ||
11628 | PL_lex_state = proto_perl->Ilex_state; | |
11629 | PL_lex_defer = proto_perl->Ilex_defer; | |
11630 | PL_lex_expect = proto_perl->Ilex_expect; | |
11631 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
11632 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
11633 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
11634 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
11635 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
11636 | PL_lex_op = proto_perl->Ilex_op; |
11637 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
11638 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
11639 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
11640 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
11641 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
11642 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
11643 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
11644 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
11645 | ||
11646 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
11647 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
11648 | PL_nexttoke = proto_perl->Inexttoke; | |
11649 | ||
1d773130 TB |
11650 | /* XXX This is probably masking the deeper issue of why |
11651 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
11652 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
11653 | * (A little debugging with a watchpoint on it may help.) | |
11654 | */ | |
389edf32 TB |
11655 | if (SvANY(proto_perl->Ilinestr)) { |
11656 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
3f7c398e | 11657 | i = proto_perl->Ibufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11658 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
3f7c398e | 11659 | i = proto_perl->Ioldbufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11660 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
3f7c398e | 11661 | i = proto_perl->Ioldoldbufptr - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11662 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
3f7c398e | 11663 | i = proto_perl->Ilinestart - SvPVX_const(proto_perl->Ilinestr); |
389edf32 TB |
11664 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
11665 | } | |
11666 | else { | |
11667 | PL_linestr = NEWSV(65,79); | |
11668 | sv_upgrade(PL_linestr,SVt_PVIV); | |
11669 | sv_setpvn(PL_linestr,"",0); | |
11670 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
11671 | } | |
1d7c1841 | 11672 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
11673 | PL_pending_ident = proto_perl->Ipending_ident; |
11674 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
11675 | ||
11676 | PL_expect = proto_perl->Iexpect; | |
11677 | ||
11678 | PL_multi_start = proto_perl->Imulti_start; | |
11679 | PL_multi_end = proto_perl->Imulti_end; | |
11680 | PL_multi_open = proto_perl->Imulti_open; | |
11681 | PL_multi_close = proto_perl->Imulti_close; | |
11682 | ||
11683 | PL_error_count = proto_perl->Ierror_count; | |
11684 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 11685 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 | 11686 | |
1d773130 | 11687 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 | 11688 | if (SvANY(proto_perl->Ilinestr)) { |
3f7c398e | 11689 | i = proto_perl->Ilast_uni - SvPVX_const(proto_perl->Ilinestr); |
389edf32 | 11690 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
3f7c398e | 11691 | i = proto_perl->Ilast_lop - SvPVX_const(proto_perl->Ilinestr); |
389edf32 TB |
11692 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); |
11693 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
11694 | } | |
11695 | else { | |
11696 | PL_last_uni = SvPVX(PL_linestr); | |
11697 | PL_last_lop = SvPVX(PL_linestr); | |
11698 | PL_last_lop_op = 0; | |
11699 | } | |
1d7c1841 | 11700 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 11701 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
11702 | #ifdef FCRYPT |
11703 | PL_cryptseen = proto_perl->Icryptseen; | |
11704 | #endif | |
11705 | ||
11706 | PL_hints = proto_perl->Ihints; | |
11707 | ||
11708 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
11709 | ||
11710 | #ifdef USE_LOCALE_COLLATE | |
11711 | PL_collation_ix = proto_perl->Icollation_ix; | |
11712 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
11713 | PL_collation_standard = proto_perl->Icollation_standard; | |
11714 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
11715 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
11716 | #endif /* USE_LOCALE_COLLATE */ | |
11717 | ||
11718 | #ifdef USE_LOCALE_NUMERIC | |
11719 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
11720 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
11721 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 11722 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
11723 | #endif /* !USE_LOCALE_NUMERIC */ |
11724 | ||
11725 | /* utf8 character classes */ | |
d2d73c3e AB |
11726 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
11727 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
11728 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
11729 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
11730 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
11731 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
11732 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
11733 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
11734 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
11735 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
11736 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
11737 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
11738 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
11739 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
11740 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
11741 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
11742 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 11743 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
11744 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
11745 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 | 11746 | |
6c3182a5 | 11747 | /* Did the locale setup indicate UTF-8? */ |
9769094f | 11748 | PL_utf8locale = proto_perl->Iutf8locale; |
6c3182a5 JH |
11749 | /* Unicode features (see perlrun/-C) */ |
11750 | PL_unicode = proto_perl->Iunicode; | |
11751 | ||
11752 | /* Pre-5.8 signals control */ | |
11753 | PL_signals = proto_perl->Isignals; | |
11754 | ||
11755 | /* times() ticks per second */ | |
11756 | PL_clocktick = proto_perl->Iclocktick; | |
11757 | ||
11758 | /* Recursion stopper for PerlIO_find_layer */ | |
11759 | PL_in_load_module = proto_perl->Iin_load_module; | |
11760 | ||
11761 | /* sort() routine */ | |
11762 | PL_sort_RealCmp = proto_perl->Isort_RealCmp; | |
11763 | ||
57c6e6d2 JH |
11764 | /* Not really needed/useful since the reenrant_retint is "volatile", |
11765 | * but do it for consistency's sake. */ | |
11766 | PL_reentrant_retint = proto_perl->Ireentrant_retint; | |
11767 | ||
15a5279a JH |
11768 | /* Hooks to shared SVs and locks. */ |
11769 | PL_sharehook = proto_perl->Isharehook; | |
11770 | PL_lockhook = proto_perl->Ilockhook; | |
11771 | PL_unlockhook = proto_perl->Iunlockhook; | |
11772 | PL_threadhook = proto_perl->Ithreadhook; | |
11773 | ||
bce260cd JH |
11774 | PL_runops_std = proto_perl->Irunops_std; |
11775 | PL_runops_dbg = proto_perl->Irunops_dbg; | |
11776 | ||
11777 | #ifdef THREADS_HAVE_PIDS | |
11778 | PL_ppid = proto_perl->Ippid; | |
11779 | #endif | |
11780 | ||
1d7c1841 GS |
11781 | /* swatch cache */ |
11782 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
11783 | PL_last_swash_klen = 0; | |
11784 | PL_last_swash_key[0]= '\0'; | |
11785 | PL_last_swash_tmps = (U8*)NULL; | |
11786 | PL_last_swash_slen = 0; | |
11787 | ||
1d7c1841 GS |
11788 | PL_glob_index = proto_perl->Iglob_index; |
11789 | PL_srand_called = proto_perl->Isrand_called; | |
11790 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
11791 | PL_bitcount = Nullch; /* reinits on demand */ | |
11792 | ||
66fe0623 | 11793 | if (proto_perl->Ipsig_pend) { |
a02a5408 | 11794 | Newxz(PL_psig_pend, SIG_SIZE, int); |
9dd79c3f | 11795 | } |
66fe0623 NIS |
11796 | else { |
11797 | PL_psig_pend = (int*)NULL; | |
11798 | } | |
11799 | ||
1d7c1841 | 11800 | if (proto_perl->Ipsig_ptr) { |
a02a5408 JC |
11801 | Newxz(PL_psig_ptr, SIG_SIZE, SV*); |
11802 | Newxz(PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 11803 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
11804 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
11805 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
11806 | } |
11807 | } | |
11808 | else { | |
11809 | PL_psig_ptr = (SV**)NULL; | |
11810 | PL_psig_name = (SV**)NULL; | |
11811 | } | |
11812 | ||
11813 | /* thrdvar.h stuff */ | |
11814 | ||
a0739874 | 11815 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
11816 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
11817 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
11818 | PL_tmps_max = proto_perl->Ttmps_max; | |
11819 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
a02a5408 | 11820 | Newxz(PL_tmps_stack, PL_tmps_max, SV*); |
1d7c1841 GS |
11821 | i = 0; |
11822 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 11823 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
11824 | ++i; |
11825 | } | |
11826 | ||
11827 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
11828 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
a02a5408 | 11829 | Newxz(PL_markstack, i, I32); |
1d7c1841 GS |
11830 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max |
11831 | - proto_perl->Tmarkstack); | |
11832 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
11833 | - proto_perl->Tmarkstack); | |
11834 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
11835 | PL_markstack_ptr - PL_markstack + 1, I32); | |
11836 | ||
11837 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
11838 | * NOTE: unlike the others! */ | |
11839 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
11840 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
a02a5408 | 11841 | Newxz(PL_scopestack, PL_scopestack_max, I32); |
1d7c1841 GS |
11842 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); |
11843 | ||
1d7c1841 | 11844 | /* NOTE: si_dup() looks at PL_markstack */ |
d2d73c3e | 11845 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
11846 | |
11847 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
11848 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
11849 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
11850 | |
11851 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
11852 | PL_stack_base = AvARRAY(PL_curstack); | |
11853 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
11854 | - proto_perl->Tstack_base); | |
11855 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
11856 | ||
11857 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
11858 | * NOTE: unlike the others! */ | |
11859 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
11860 | PL_savestack_max = proto_perl->Tsavestack_max; | |
a02a5408 | 11861 | /*Newxz(PL_savestack, PL_savestack_max, ANY);*/ |
d2d73c3e | 11862 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
11863 | } |
11864 | else { | |
11865 | init_stacks(); | |
985e7056 | 11866 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
11867 | } |
11868 | ||
11869 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
11870 | PL_top_env = &PL_start_env; | |
11871 | ||
11872 | PL_op = proto_perl->Top; | |
11873 | ||
11874 | PL_Sv = Nullsv; | |
11875 | PL_Xpv = (XPV*)NULL; | |
11876 | PL_na = proto_perl->Tna; | |
11877 | ||
11878 | PL_statbuf = proto_perl->Tstatbuf; | |
11879 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
11880 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
11881 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
11882 | #ifdef HAS_TIMES |
11883 | PL_timesbuf = proto_perl->Ttimesbuf; | |
11884 | #endif | |
11885 | ||
11886 | PL_tainted = proto_perl->Ttainted; | |
11887 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
11888 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
11889 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
11890 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
11891 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 11892 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
11893 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
11894 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
11895 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
11896 | |
11897 | PL_restartop = proto_perl->Trestartop; | |
11898 | PL_in_eval = proto_perl->Tin_eval; | |
11899 | PL_delaymagic = proto_perl->Tdelaymagic; | |
11900 | PL_dirty = proto_perl->Tdirty; | |
11901 | PL_localizing = proto_perl->Tlocalizing; | |
11902 | ||
d2d73c3e | 11903 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
dd28f7bb | 11904 | PL_hv_fetch_ent_mh = Nullhe; |
1d7c1841 GS |
11905 | PL_modcount = proto_perl->Tmodcount; |
11906 | PL_lastgotoprobe = Nullop; | |
11907 | PL_dumpindent = proto_perl->Tdumpindent; | |
11908 | ||
11909 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
11910 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
11911 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
11912 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
11913 | PL_sortcxix = proto_perl->Tsortcxix; |
11914 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
11915 | PL_efloatsize = 0; /* reinits on demand */ | |
11916 | ||
11917 | /* regex stuff */ | |
11918 | ||
11919 | PL_screamfirst = NULL; | |
11920 | PL_screamnext = NULL; | |
11921 | PL_maxscream = -1; /* reinits on demand */ | |
11922 | PL_lastscream = Nullsv; | |
11923 | ||
11924 | PL_watchaddr = NULL; | |
11925 | PL_watchok = Nullch; | |
11926 | ||
11927 | PL_regdummy = proto_perl->Tregdummy; | |
1d7c1841 GS |
11928 | PL_regprecomp = Nullch; |
11929 | PL_regnpar = 0; | |
11930 | PL_regsize = 0; | |
1d7c1841 GS |
11931 | PL_colorset = 0; /* reinits PL_colors[] */ |
11932 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
1d7c1841 GS |
11933 | PL_reginput = Nullch; |
11934 | PL_regbol = Nullch; | |
11935 | PL_regeol = Nullch; | |
11936 | PL_regstartp = (I32*)NULL; | |
11937 | PL_regendp = (I32*)NULL; | |
11938 | PL_reglastparen = (U32*)NULL; | |
2d862feb | 11939 | PL_reglastcloseparen = (U32*)NULL; |
1d7c1841 | 11940 | PL_regtill = Nullch; |
1d7c1841 GS |
11941 | PL_reg_start_tmp = (char**)NULL; |
11942 | PL_reg_start_tmpl = 0; | |
11943 | PL_regdata = (struct reg_data*)NULL; | |
11944 | PL_bostr = Nullch; | |
11945 | PL_reg_flags = 0; | |
11946 | PL_reg_eval_set = 0; | |
11947 | PL_regnarrate = 0; | |
11948 | PL_regprogram = (regnode*)NULL; | |
11949 | PL_regindent = 0; | |
11950 | PL_regcc = (CURCUR*)NULL; | |
11951 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
11952 | PL_reg_re = (regexp*)NULL; | |
11953 | PL_reg_ganch = Nullch; | |
11954 | PL_reg_sv = Nullsv; | |
53c4c00c | 11955 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
11956 | PL_reg_magic = (MAGIC*)NULL; |
11957 | PL_reg_oldpos = 0; | |
11958 | PL_reg_oldcurpm = (PMOP*)NULL; | |
11959 | PL_reg_curpm = (PMOP*)NULL; | |
11960 | PL_reg_oldsaved = Nullch; | |
11961 | PL_reg_oldsavedlen = 0; | |
f8c7b90f | 11962 | #ifdef PERL_OLD_COPY_ON_WRITE |
504cff3b | 11963 | PL_nrs = Nullsv; |
ed252734 | 11964 | #endif |
1d7c1841 GS |
11965 | PL_reg_maxiter = 0; |
11966 | PL_reg_leftiter = 0; | |
11967 | PL_reg_poscache = Nullch; | |
11968 | PL_reg_poscache_size= 0; | |
11969 | ||
11970 | /* RE engine - function pointers */ | |
11971 | PL_regcompp = proto_perl->Tregcompp; | |
11972 | PL_regexecp = proto_perl->Tregexecp; | |
11973 | PL_regint_start = proto_perl->Tregint_start; | |
11974 | PL_regint_string = proto_perl->Tregint_string; | |
11975 | PL_regfree = proto_perl->Tregfree; | |
11976 | ||
11977 | PL_reginterp_cnt = 0; | |
11978 | PL_reg_starttry = 0; | |
11979 | ||
a2efc822 SC |
11980 | /* Pluggable optimizer */ |
11981 | PL_peepp = proto_perl->Tpeepp; | |
11982 | ||
081fc587 AB |
11983 | PL_stashcache = newHV(); |
11984 | ||
a0739874 DM |
11985 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
11986 | ptr_table_free(PL_ptr_table); | |
11987 | PL_ptr_table = NULL; | |
11988 | } | |
8cf8f3d1 | 11989 | |
f284b03f AMS |
11990 | /* Call the ->CLONE method, if it exists, for each of the stashes |
11991 | identified by sv_dup() above. | |
11992 | */ | |
d2d73c3e | 11993 | while(av_len(param->stashes) != -1) { |
53c1dcc0 AL |
11994 | HV* const stash = (HV*) av_shift(param->stashes); |
11995 | GV* const cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); | |
f284b03f AMS |
11996 | if (cloner && GvCV(cloner)) { |
11997 | dSP; | |
11998 | ENTER; | |
11999 | SAVETMPS; | |
12000 | PUSHMARK(SP); | |
84bda14a | 12001 | XPUSHs(sv_2mortal(newSVhek(HvNAME_HEK(stash)))); |
f284b03f AMS |
12002 | PUTBACK; |
12003 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
12004 | FREETMPS; | |
12005 | LEAVE; | |
12006 | } | |
4a09accc | 12007 | } |
a0739874 | 12008 | |
dc507217 | 12009 | SvREFCNT_dec(param->stashes); |
dc507217 | 12010 | |
6d26897e DM |
12011 | /* orphaned? eg threads->new inside BEGIN or use */ |
12012 | if (PL_compcv && ! SvREFCNT(PL_compcv)) { | |
a3b680e6 | 12013 | (void)SvREFCNT_inc(PL_compcv); |
6d26897e DM |
12014 | SAVEFREESV(PL_compcv); |
12015 | } | |
12016 | ||
1d7c1841 | 12017 | return my_perl; |
1d7c1841 GS |
12018 | } |
12019 | ||
1d7c1841 | 12020 | #endif /* USE_ITHREADS */ |
a0ae6670 | 12021 | |
9f4817db | 12022 | /* |
ccfc67b7 JH |
12023 | =head1 Unicode Support |
12024 | ||
9f4817db JH |
12025 | =for apidoc sv_recode_to_utf8 |
12026 | ||
5d170f3a JH |
12027 | The encoding is assumed to be an Encode object, on entry the PV |
12028 | of the sv is assumed to be octets in that encoding, and the sv | |
12029 | will be converted into Unicode (and UTF-8). | |
9f4817db | 12030 | |
5d170f3a JH |
12031 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
12032 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
12033 | an C<Encode::XS> Encoding object, bad things will happen. |
12034 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 12035 | |
5d170f3a | 12036 | The PV of the sv is returned. |
9f4817db | 12037 | |
5d170f3a JH |
12038 | =cut */ |
12039 | ||
12040 | char * | |
12041 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
12042 | { | |
27da23d5 | 12043 | dVAR; |
220e2d4e | 12044 | if (SvPOK(sv) && !SvUTF8(sv) && !IN_BYTES && SvROK(encoding)) { |
d0063567 DK |
12045 | SV *uni; |
12046 | STRLEN len; | |
93524f2b | 12047 | const char *s; |
d0063567 DK |
12048 | dSP; |
12049 | ENTER; | |
12050 | SAVETMPS; | |
220e2d4e | 12051 | save_re_context(); |
d0063567 DK |
12052 | PUSHMARK(sp); |
12053 | EXTEND(SP, 3); | |
12054 | XPUSHs(encoding); | |
12055 | XPUSHs(sv); | |
7a5fa8a2 | 12056 | /* |
f9893866 NIS |
12057 | NI-S 2002/07/09 |
12058 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
7a5fa8a2 | 12059 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means |
f9893866 NIS |
12060 | remove converted chars from source. |
12061 | ||
12062 | Both will default the value - let them. | |
7a5fa8a2 | 12063 | |
d0063567 | 12064 | XPUSHs(&PL_sv_yes); |
f9893866 | 12065 | */ |
d0063567 DK |
12066 | PUTBACK; |
12067 | call_method("decode", G_SCALAR); | |
12068 | SPAGAIN; | |
12069 | uni = POPs; | |
12070 | PUTBACK; | |
93524f2b | 12071 | s = SvPV_const(uni, len); |
3f7c398e | 12072 | if (s != SvPVX_const(sv)) { |
d0063567 | 12073 | SvGROW(sv, len + 1); |
93524f2b | 12074 | Move(s, SvPVX(sv), len + 1, char); |
d0063567 | 12075 | SvCUR_set(sv, len); |
d0063567 DK |
12076 | } |
12077 | FREETMPS; | |
12078 | LEAVE; | |
d0063567 | 12079 | SvUTF8_on(sv); |
95899a2a | 12080 | return SvPVX(sv); |
f9893866 | 12081 | } |
95899a2a | 12082 | return SvPOKp(sv) ? SvPVX(sv) : NULL; |
9f4817db JH |
12083 | } |
12084 | ||
220e2d4e IH |
12085 | /* |
12086 | =for apidoc sv_cat_decode | |
12087 | ||
12088 | The encoding is assumed to be an Encode object, the PV of the ssv is | |
12089 | assumed to be octets in that encoding and decoding the input starts | |
12090 | from the position which (PV + *offset) pointed to. The dsv will be | |
12091 | concatenated the decoded UTF-8 string from ssv. Decoding will terminate | |
12092 | when the string tstr appears in decoding output or the input ends on | |
12093 | the PV of the ssv. The value which the offset points will be modified | |
12094 | to the last input position on the ssv. | |
68795e93 | 12095 | |
220e2d4e IH |
12096 | Returns TRUE if the terminator was found, else returns FALSE. |
12097 | ||
12098 | =cut */ | |
12099 | ||
12100 | bool | |
12101 | Perl_sv_cat_decode(pTHX_ SV *dsv, SV *encoding, | |
12102 | SV *ssv, int *offset, char *tstr, int tlen) | |
12103 | { | |
27da23d5 | 12104 | dVAR; |
a73e8557 | 12105 | bool ret = FALSE; |
220e2d4e | 12106 | if (SvPOK(ssv) && SvPOK(dsv) && SvROK(encoding) && offset) { |
220e2d4e IH |
12107 | SV *offsv; |
12108 | dSP; | |
12109 | ENTER; | |
12110 | SAVETMPS; | |
12111 | save_re_context(); | |
12112 | PUSHMARK(sp); | |
12113 | EXTEND(SP, 6); | |
12114 | XPUSHs(encoding); | |
12115 | XPUSHs(dsv); | |
12116 | XPUSHs(ssv); | |
12117 | XPUSHs(offsv = sv_2mortal(newSViv(*offset))); | |
12118 | XPUSHs(sv_2mortal(newSVpvn(tstr, tlen))); | |
12119 | PUTBACK; | |
12120 | call_method("cat_decode", G_SCALAR); | |
12121 | SPAGAIN; | |
12122 | ret = SvTRUE(TOPs); | |
12123 | *offset = SvIV(offsv); | |
12124 | PUTBACK; | |
12125 | FREETMPS; | |
12126 | LEAVE; | |
220e2d4e | 12127 | } |
a73e8557 JH |
12128 | else |
12129 | Perl_croak(aTHX_ "Invalid argument to sv_cat_decode"); | |
12130 | return ret; | |
220e2d4e | 12131 | } |
f9893866 | 12132 | |
241d1a3b NC |
12133 | /* |
12134 | * Local variables: | |
12135 | * c-indentation-style: bsd | |
12136 | * c-basic-offset: 4 | |
12137 | * indent-tabs-mode: t | |
12138 | * End: | |
12139 | * | |
37442d52 RGS |
12140 | * ex: set ts=8 sts=4 sw=4 noet: |
12141 | */ |