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 | ||
765f542d NC |
50 | #ifdef PERL_COPY_ON_WRITE |
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 | ||
66 | Normally, this allocation is done using arenas, which are approximately | |
67 | 1K chunks of memory parcelled up into N heads or bodies. The first slot | |
68 | in each arena is reserved, and is used to hold a link to the next arena. | |
69 | In the case of heads, the unused first slot also contains some flags and | |
70 | a note of the number of slots. Snaked through each arena chain is a | |
71 | linked list of free items; when this becomes empty, an extra arena is | |
72 | allocated and divided up into N items which are threaded into the free | |
73 | list. | |
645c22ef DM |
74 | |
75 | The following global variables are associated with arenas: | |
76 | ||
77 | PL_sv_arenaroot pointer to list of SV arenas | |
78 | PL_sv_root pointer to list of free SV structures | |
79 | ||
80 | PL_foo_arenaroot pointer to list of foo arenas, | |
81 | PL_foo_root pointer to list of free foo bodies | |
82 | ... for foo in xiv, xnv, xrv, xpv etc. | |
83 | ||
84 | Note that some of the larger and more rarely used body types (eg xpvio) | |
85 | are not allocated using arenas, but are instead just malloc()/free()ed as | |
86 | required. Also, if PURIFY is defined, arenas are abandoned altogether, | |
87 | with all items individually malloc()ed. In addition, a few SV heads are | |
88 | not allocated from an arena, but are instead directly created as static | |
89 | or auto variables, eg PL_sv_undef. | |
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 | ||
fd0854ff DM |
168 | #ifdef DEBUG_LEAKING_SCALARS |
169 | # ifdef NETWARE | |
170 | # define FREE_SV_DEBUG_FILE(sv) PerlMemfree((sv)->sv_debug_file) | |
171 | # else | |
172 | # define FREE_SV_DEBUG_FILE(sv) PerlMemShared_free((sv)->sv_debug_file) | |
173 | # endif | |
174 | #else | |
175 | # define FREE_SV_DEBUG_FILE(sv) | |
176 | #endif | |
177 | ||
053fc874 GS |
178 | #define plant_SV(p) \ |
179 | STMT_START { \ | |
fd0854ff | 180 | FREE_SV_DEBUG_FILE(p); \ |
053fc874 GS |
181 | SvANY(p) = (void *)PL_sv_root; \ |
182 | SvFLAGS(p) = SVTYPEMASK; \ | |
183 | PL_sv_root = (p); \ | |
184 | --PL_sv_count; \ | |
185 | } STMT_END | |
a0d0e21e | 186 | |
fba3b22e | 187 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
188 | #define uproot_SV(p) \ |
189 | STMT_START { \ | |
190 | (p) = PL_sv_root; \ | |
191 | PL_sv_root = (SV*)SvANY(p); \ | |
192 | ++PL_sv_count; \ | |
193 | } STMT_END | |
194 | ||
645c22ef DM |
195 | |
196 | /* new_SV(): return a new, empty SV head */ | |
197 | ||
eba0f806 DM |
198 | #ifdef DEBUG_LEAKING_SCALARS |
199 | /* provide a real function for a debugger to play with */ | |
200 | STATIC SV* | |
201 | S_new_SV(pTHX) | |
202 | { | |
203 | SV* sv; | |
204 | ||
205 | LOCK_SV_MUTEX; | |
206 | if (PL_sv_root) | |
207 | uproot_SV(sv); | |
208 | else | |
209 | sv = more_sv(); | |
210 | UNLOCK_SV_MUTEX; | |
211 | SvANY(sv) = 0; | |
212 | SvREFCNT(sv) = 1; | |
213 | SvFLAGS(sv) = 0; | |
fd0854ff DM |
214 | sv->sv_debug_optype = PL_op ? PL_op->op_type : 0; |
215 | sv->sv_debug_line = (U16) ((PL_copline == NOLINE) ? | |
216 | (PL_curcop ? CopLINE(PL_curcop) : 0) : PL_copline); | |
217 | sv->sv_debug_inpad = 0; | |
218 | sv->sv_debug_cloned = 0; | |
219 | # ifdef NETWARE | |
220 | sv->sv_debug_file = PL_curcop ? savepv(CopFILE(PL_curcop)): NULL; | |
221 | # else | |
222 | sv->sv_debug_file = PL_curcop ? savesharedpv(CopFILE(PL_curcop)): NULL; | |
223 | # endif | |
224 | ||
eba0f806 DM |
225 | return sv; |
226 | } | |
227 | # define new_SV(p) (p)=S_new_SV(aTHX) | |
228 | ||
229 | #else | |
230 | # define new_SV(p) \ | |
053fc874 GS |
231 | STMT_START { \ |
232 | LOCK_SV_MUTEX; \ | |
233 | if (PL_sv_root) \ | |
234 | uproot_SV(p); \ | |
235 | else \ | |
236 | (p) = more_sv(); \ | |
237 | UNLOCK_SV_MUTEX; \ | |
238 | SvANY(p) = 0; \ | |
239 | SvREFCNT(p) = 1; \ | |
240 | SvFLAGS(p) = 0; \ | |
241 | } STMT_END | |
eba0f806 | 242 | #endif |
463ee0b2 | 243 | |
645c22ef DM |
244 | |
245 | /* del_SV(): return an empty SV head to the free list */ | |
246 | ||
a0d0e21e | 247 | #ifdef DEBUGGING |
4561caa4 | 248 | |
053fc874 GS |
249 | #define del_SV(p) \ |
250 | STMT_START { \ | |
251 | LOCK_SV_MUTEX; \ | |
aea4f609 | 252 | if (DEBUG_D_TEST) \ |
053fc874 GS |
253 | del_sv(p); \ |
254 | else \ | |
255 | plant_SV(p); \ | |
256 | UNLOCK_SV_MUTEX; \ | |
257 | } STMT_END | |
a0d0e21e | 258 | |
76e3520e | 259 | STATIC void |
cea2e8a9 | 260 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 261 | { |
aea4f609 | 262 | if (DEBUG_D_TEST) { |
4633a7c4 | 263 | SV* sva; |
a0d0e21e LW |
264 | SV* sv; |
265 | SV* svend; | |
266 | int ok = 0; | |
3280af22 | 267 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
268 | sv = sva + 1; |
269 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
270 | if (p >= sv && p < svend) |
271 | ok = 1; | |
272 | } | |
273 | if (!ok) { | |
0453d815 | 274 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 275 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
472d47bc SB |
276 | "Attempt to free non-arena SV: 0x%"UVxf |
277 | pTHX__FORMAT, PTR2UV(p) pTHX__VALUE); | |
a0d0e21e LW |
278 | return; |
279 | } | |
280 | } | |
4561caa4 | 281 | plant_SV(p); |
463ee0b2 | 282 | } |
a0d0e21e | 283 | |
4561caa4 CS |
284 | #else /* ! DEBUGGING */ |
285 | ||
286 | #define del_SV(p) plant_SV(p) | |
287 | ||
288 | #endif /* DEBUGGING */ | |
463ee0b2 | 289 | |
645c22ef DM |
290 | |
291 | /* | |
ccfc67b7 JH |
292 | =head1 SV Manipulation Functions |
293 | ||
645c22ef DM |
294 | =for apidoc sv_add_arena |
295 | ||
296 | Given a chunk of memory, link it to the head of the list of arenas, | |
297 | and split it into a list of free SVs. | |
298 | ||
299 | =cut | |
300 | */ | |
301 | ||
4633a7c4 | 302 | void |
864dbfa3 | 303 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 304 | { |
4633a7c4 | 305 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
306 | register SV* sv; |
307 | register SV* svend; | |
4633a7c4 LW |
308 | |
309 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 310 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
311 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
312 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
313 | ||
3280af22 NIS |
314 | PL_sv_arenaroot = sva; |
315 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
316 | |
317 | svend = &sva[SvREFCNT(sva) - 1]; | |
318 | sv = sva + 1; | |
463ee0b2 | 319 | while (sv < svend) { |
a0d0e21e | 320 | SvANY(sv) = (void *)(SV*)(sv + 1); |
978b032e | 321 | SvREFCNT(sv) = 0; |
8990e307 | 322 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
323 | sv++; |
324 | } | |
325 | SvANY(sv) = 0; | |
4633a7c4 LW |
326 | SvFLAGS(sv) = SVTYPEMASK; |
327 | } | |
328 | ||
645c22ef DM |
329 | /* make some more SVs by adding another arena */ |
330 | ||
fba3b22e | 331 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 332 | STATIC SV* |
cea2e8a9 | 333 | S_more_sv(pTHX) |
4633a7c4 | 334 | { |
4561caa4 CS |
335 | register SV* sv; |
336 | ||
3280af22 NIS |
337 | if (PL_nice_chunk) { |
338 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
339 | PL_nice_chunk = Nullch; | |
30ad99e7 | 340 | PL_nice_chunk_size = 0; |
c07a80fd | 341 | } |
1edc1566 | 342 | else { |
9c17f24a NC |
343 | char *chunk; /* must use New here to match call to Safefree() */ |
344 | New(704,chunk,PERL_ARENA_SIZE,char); /* in sv_free_arenas() */ | |
345 | sv_add_arena(chunk, PERL_ARENA_SIZE, 0); | |
1edc1566 | 346 | } |
4561caa4 CS |
347 | uproot_SV(sv); |
348 | return sv; | |
463ee0b2 LW |
349 | } |
350 | ||
055972dc DM |
351 | /* visit(): call the named function for each non-free SV in the arenas |
352 | * whose flags field matches the flags/mask args. */ | |
645c22ef | 353 | |
5226ed68 | 354 | STATIC I32 |
055972dc | 355 | S_visit(pTHX_ SVFUNC_t f, U32 flags, U32 mask) |
8990e307 | 356 | { |
4633a7c4 | 357 | SV* sva; |
8990e307 LW |
358 | SV* sv; |
359 | register SV* svend; | |
5226ed68 | 360 | I32 visited = 0; |
8990e307 | 361 | |
3280af22 | 362 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 363 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 | 364 | for (sv = sva + 1; sv < svend; ++sv) { |
055972dc DM |
365 | if (SvTYPE(sv) != SVTYPEMASK |
366 | && (sv->sv_flags & mask) == flags | |
367 | && SvREFCNT(sv)) | |
368 | { | |
acfe0abc | 369 | (FCALL)(aTHX_ sv); |
5226ed68 JH |
370 | ++visited; |
371 | } | |
8990e307 LW |
372 | } |
373 | } | |
5226ed68 | 374 | return visited; |
8990e307 LW |
375 | } |
376 | ||
758a08c3 JH |
377 | #ifdef DEBUGGING |
378 | ||
645c22ef DM |
379 | /* called by sv_report_used() for each live SV */ |
380 | ||
381 | static void | |
acfe0abc | 382 | do_report_used(pTHX_ SV *sv) |
645c22ef DM |
383 | { |
384 | if (SvTYPE(sv) != SVTYPEMASK) { | |
385 | PerlIO_printf(Perl_debug_log, "****\n"); | |
386 | sv_dump(sv); | |
387 | } | |
388 | } | |
758a08c3 | 389 | #endif |
645c22ef DM |
390 | |
391 | /* | |
392 | =for apidoc sv_report_used | |
393 | ||
394 | Dump the contents of all SVs not yet freed. (Debugging aid). | |
395 | ||
396 | =cut | |
397 | */ | |
398 | ||
8990e307 | 399 | void |
864dbfa3 | 400 | Perl_sv_report_used(pTHX) |
4561caa4 | 401 | { |
ff270d3a | 402 | #ifdef DEBUGGING |
055972dc | 403 | visit(do_report_used, 0, 0); |
ff270d3a | 404 | #endif |
4561caa4 CS |
405 | } |
406 | ||
645c22ef DM |
407 | /* called by sv_clean_objs() for each live SV */ |
408 | ||
409 | static void | |
acfe0abc | 410 | do_clean_objs(pTHX_ SV *sv) |
645c22ef DM |
411 | { |
412 | SV* rv; | |
413 | ||
414 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
415 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv))); | |
416 | if (SvWEAKREF(sv)) { | |
417 | sv_del_backref(sv); | |
418 | SvWEAKREF_off(sv); | |
b162af07 | 419 | SvRV_set(sv, NULL); |
645c22ef DM |
420 | } else { |
421 | SvROK_off(sv); | |
b162af07 | 422 | SvRV_set(sv, NULL); |
645c22ef DM |
423 | SvREFCNT_dec(rv); |
424 | } | |
425 | } | |
426 | ||
427 | /* XXX Might want to check arrays, etc. */ | |
428 | } | |
429 | ||
430 | /* called by sv_clean_objs() for each live SV */ | |
431 | ||
432 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
433 | static void | |
acfe0abc | 434 | do_clean_named_objs(pTHX_ SV *sv) |
645c22ef DM |
435 | { |
436 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { | |
437 | if ( SvOBJECT(GvSV(sv)) || | |
438 | (GvAV(sv) && SvOBJECT(GvAV(sv))) || | |
439 | (GvHV(sv) && SvOBJECT(GvHV(sv))) || | |
440 | (GvIO(sv) && SvOBJECT(GvIO(sv))) || | |
441 | (GvCV(sv) && SvOBJECT(GvCV(sv))) ) | |
442 | { | |
443 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv))); | |
ec5f3c78 | 444 | SvFLAGS(sv) |= SVf_BREAK; |
645c22ef DM |
445 | SvREFCNT_dec(sv); |
446 | } | |
447 | } | |
448 | } | |
449 | #endif | |
450 | ||
451 | /* | |
452 | =for apidoc sv_clean_objs | |
453 | ||
454 | Attempt to destroy all objects not yet freed | |
455 | ||
456 | =cut | |
457 | */ | |
458 | ||
4561caa4 | 459 | void |
864dbfa3 | 460 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 461 | { |
3280af22 | 462 | PL_in_clean_objs = TRUE; |
055972dc | 463 | visit(do_clean_objs, SVf_ROK, SVf_ROK); |
4561caa4 | 464 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 465 | /* some barnacles may yet remain, clinging to typeglobs */ |
055972dc | 466 | visit(do_clean_named_objs, SVt_PVGV, SVTYPEMASK); |
4561caa4 | 467 | #endif |
3280af22 | 468 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
469 | } |
470 | ||
645c22ef DM |
471 | /* called by sv_clean_all() for each live SV */ |
472 | ||
473 | static void | |
acfe0abc | 474 | do_clean_all(pTHX_ SV *sv) |
645c22ef DM |
475 | { |
476 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) )); | |
477 | SvFLAGS(sv) |= SVf_BREAK; | |
0e705b3b DM |
478 | if (PL_comppad == (AV*)sv) { |
479 | PL_comppad = Nullav; | |
480 | PL_curpad = Null(SV**); | |
481 | } | |
645c22ef DM |
482 | SvREFCNT_dec(sv); |
483 | } | |
484 | ||
485 | /* | |
486 | =for apidoc sv_clean_all | |
487 | ||
488 | Decrement the refcnt of each remaining SV, possibly triggering a | |
489 | cleanup. This function may have to be called multiple times to free | |
ff276b08 | 490 | SVs which are in complex self-referential hierarchies. |
645c22ef DM |
491 | |
492 | =cut | |
493 | */ | |
494 | ||
5226ed68 | 495 | I32 |
864dbfa3 | 496 | Perl_sv_clean_all(pTHX) |
8990e307 | 497 | { |
5226ed68 | 498 | I32 cleaned; |
3280af22 | 499 | PL_in_clean_all = TRUE; |
055972dc | 500 | cleaned = visit(do_clean_all, 0,0); |
3280af22 | 501 | PL_in_clean_all = FALSE; |
5226ed68 | 502 | return cleaned; |
8990e307 | 503 | } |
463ee0b2 | 504 | |
645c22ef DM |
505 | /* |
506 | =for apidoc sv_free_arenas | |
507 | ||
508 | Deallocate the memory used by all arenas. Note that all the individual SV | |
509 | heads and bodies within the arenas must already have been freed. | |
510 | ||
511 | =cut | |
512 | */ | |
513 | ||
4633a7c4 | 514 | void |
864dbfa3 | 515 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
516 | { |
517 | SV* sva; | |
518 | SV* svanext; | |
612f20c3 | 519 | XPV *arena, *arenanext; |
4633a7c4 LW |
520 | |
521 | /* Free arenas here, but be careful about fake ones. (We assume | |
522 | contiguity of the fake ones with the corresponding real ones.) */ | |
523 | ||
3280af22 | 524 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
525 | svanext = (SV*) SvANY(sva); |
526 | while (svanext && SvFAKE(svanext)) | |
527 | svanext = (SV*) SvANY(svanext); | |
528 | ||
529 | if (!SvFAKE(sva)) | |
1edc1566 | 530 | Safefree((void *)sva); |
4633a7c4 | 531 | } |
5f05dabc | 532 | |
612f20c3 GS |
533 | for (arena = PL_xiv_arenaroot; arena; arena = arenanext) { |
534 | arenanext = (XPV*)arena->xpv_pv; | |
535 | Safefree(arena); | |
536 | } | |
537 | PL_xiv_arenaroot = 0; | |
bf9cdc68 | 538 | PL_xiv_root = 0; |
612f20c3 GS |
539 | |
540 | for (arena = PL_xnv_arenaroot; arena; arena = arenanext) { | |
541 | arenanext = (XPV*)arena->xpv_pv; | |
542 | Safefree(arena); | |
543 | } | |
544 | PL_xnv_arenaroot = 0; | |
bf9cdc68 | 545 | PL_xnv_root = 0; |
612f20c3 GS |
546 | |
547 | for (arena = PL_xrv_arenaroot; arena; arena = arenanext) { | |
548 | arenanext = (XPV*)arena->xpv_pv; | |
549 | Safefree(arena); | |
550 | } | |
551 | PL_xrv_arenaroot = 0; | |
bf9cdc68 | 552 | PL_xrv_root = 0; |
612f20c3 GS |
553 | |
554 | for (arena = PL_xpv_arenaroot; arena; arena = arenanext) { | |
555 | arenanext = (XPV*)arena->xpv_pv; | |
556 | Safefree(arena); | |
557 | } | |
558 | PL_xpv_arenaroot = 0; | |
bf9cdc68 | 559 | PL_xpv_root = 0; |
612f20c3 GS |
560 | |
561 | for (arena = (XPV*)PL_xpviv_arenaroot; arena; arena = arenanext) { | |
562 | arenanext = (XPV*)arena->xpv_pv; | |
563 | Safefree(arena); | |
564 | } | |
565 | PL_xpviv_arenaroot = 0; | |
bf9cdc68 | 566 | PL_xpviv_root = 0; |
612f20c3 GS |
567 | |
568 | for (arena = (XPV*)PL_xpvnv_arenaroot; arena; arena = arenanext) { | |
569 | arenanext = (XPV*)arena->xpv_pv; | |
570 | Safefree(arena); | |
571 | } | |
572 | PL_xpvnv_arenaroot = 0; | |
bf9cdc68 | 573 | PL_xpvnv_root = 0; |
612f20c3 GS |
574 | |
575 | for (arena = (XPV*)PL_xpvcv_arenaroot; arena; arena = arenanext) { | |
576 | arenanext = (XPV*)arena->xpv_pv; | |
577 | Safefree(arena); | |
578 | } | |
579 | PL_xpvcv_arenaroot = 0; | |
bf9cdc68 | 580 | PL_xpvcv_root = 0; |
612f20c3 GS |
581 | |
582 | for (arena = (XPV*)PL_xpvav_arenaroot; arena; arena = arenanext) { | |
583 | arenanext = (XPV*)arena->xpv_pv; | |
584 | Safefree(arena); | |
585 | } | |
586 | PL_xpvav_arenaroot = 0; | |
bf9cdc68 | 587 | PL_xpvav_root = 0; |
612f20c3 GS |
588 | |
589 | for (arena = (XPV*)PL_xpvhv_arenaroot; arena; arena = arenanext) { | |
590 | arenanext = (XPV*)arena->xpv_pv; | |
591 | Safefree(arena); | |
592 | } | |
593 | PL_xpvhv_arenaroot = 0; | |
bf9cdc68 | 594 | PL_xpvhv_root = 0; |
612f20c3 GS |
595 | |
596 | for (arena = (XPV*)PL_xpvmg_arenaroot; arena; arena = arenanext) { | |
597 | arenanext = (XPV*)arena->xpv_pv; | |
598 | Safefree(arena); | |
599 | } | |
600 | PL_xpvmg_arenaroot = 0; | |
bf9cdc68 | 601 | PL_xpvmg_root = 0; |
612f20c3 GS |
602 | |
603 | for (arena = (XPV*)PL_xpvlv_arenaroot; arena; arena = arenanext) { | |
604 | arenanext = (XPV*)arena->xpv_pv; | |
605 | Safefree(arena); | |
606 | } | |
607 | PL_xpvlv_arenaroot = 0; | |
bf9cdc68 | 608 | PL_xpvlv_root = 0; |
612f20c3 GS |
609 | |
610 | for (arena = (XPV*)PL_xpvbm_arenaroot; arena; arena = arenanext) { | |
611 | arenanext = (XPV*)arena->xpv_pv; | |
612 | Safefree(arena); | |
613 | } | |
614 | PL_xpvbm_arenaroot = 0; | |
bf9cdc68 | 615 | PL_xpvbm_root = 0; |
612f20c3 GS |
616 | |
617 | for (arena = (XPV*)PL_he_arenaroot; arena; arena = arenanext) { | |
618 | arenanext = (XPV*)arena->xpv_pv; | |
619 | Safefree(arena); | |
620 | } | |
621 | PL_he_arenaroot = 0; | |
bf9cdc68 | 622 | PL_he_root = 0; |
612f20c3 | 623 | |
32e691d0 NC |
624 | for (arena = (XPV*)PL_pte_arenaroot; arena; arena = arenanext) { |
625 | arenanext = (XPV*)arena->xpv_pv; | |
626 | Safefree(arena); | |
627 | } | |
628 | PL_pte_arenaroot = 0; | |
629 | PL_pte_root = 0; | |
630 | ||
3280af22 NIS |
631 | if (PL_nice_chunk) |
632 | Safefree(PL_nice_chunk); | |
633 | PL_nice_chunk = Nullch; | |
634 | PL_nice_chunk_size = 0; | |
635 | PL_sv_arenaroot = 0; | |
636 | PL_sv_root = 0; | |
4633a7c4 LW |
637 | } |
638 | ||
29489e7c DM |
639 | /* --------------------------------------------------------------------- |
640 | * | |
641 | * support functions for report_uninit() | |
642 | */ | |
643 | ||
644 | /* the maxiumum size of array or hash where we will scan looking | |
645 | * for the undefined element that triggered the warning */ | |
646 | ||
647 | #define FUV_MAX_SEARCH_SIZE 1000 | |
648 | ||
649 | /* Look for an entry in the hash whose value has the same SV as val; | |
650 | * If so, return a mortal copy of the key. */ | |
651 | ||
652 | STATIC SV* | |
653 | S_find_hash_subscript(pTHX_ HV *hv, SV* val) | |
654 | { | |
27da23d5 | 655 | dVAR; |
29489e7c DM |
656 | register HE **array; |
657 | register HE *entry; | |
658 | I32 i; | |
659 | ||
660 | if (!hv || SvMAGICAL(hv) || !HvARRAY(hv) || | |
661 | (HvTOTALKEYS(hv) > FUV_MAX_SEARCH_SIZE)) | |
662 | return Nullsv; | |
663 | ||
664 | array = HvARRAY(hv); | |
665 | ||
666 | for (i=HvMAX(hv); i>0; i--) { | |
667 | for (entry = array[i]; entry; entry = HeNEXT(entry)) { | |
668 | if (HeVAL(entry) != val) | |
669 | continue; | |
670 | if ( HeVAL(entry) == &PL_sv_undef || | |
671 | HeVAL(entry) == &PL_sv_placeholder) | |
672 | continue; | |
673 | if (!HeKEY(entry)) | |
674 | return Nullsv; | |
675 | if (HeKLEN(entry) == HEf_SVKEY) | |
676 | return sv_mortalcopy(HeKEY_sv(entry)); | |
677 | return sv_2mortal(newSVpvn(HeKEY(entry), HeKLEN(entry))); | |
678 | } | |
679 | } | |
680 | return Nullsv; | |
681 | } | |
682 | ||
683 | /* Look for an entry in the array whose value has the same SV as val; | |
684 | * If so, return the index, otherwise return -1. */ | |
685 | ||
686 | STATIC I32 | |
687 | S_find_array_subscript(pTHX_ AV *av, SV* val) | |
688 | { | |
689 | SV** svp; | |
690 | I32 i; | |
691 | if (!av || SvMAGICAL(av) || !AvARRAY(av) || | |
692 | (AvFILLp(av) > FUV_MAX_SEARCH_SIZE)) | |
693 | return -1; | |
694 | ||
695 | svp = AvARRAY(av); | |
696 | for (i=AvFILLp(av); i>=0; i--) { | |
697 | if (svp[i] == val && svp[i] != &PL_sv_undef) | |
698 | return i; | |
699 | } | |
700 | return -1; | |
701 | } | |
702 | ||
703 | /* S_varname(): return the name of a variable, optionally with a subscript. | |
704 | * If gv is non-zero, use the name of that global, along with gvtype (one | |
705 | * of "$", "@", "%"); otherwise use the name of the lexical at pad offset | |
706 | * targ. Depending on the value of the subscript_type flag, return: | |
707 | */ | |
708 | ||
709 | #define FUV_SUBSCRIPT_NONE 1 /* "@foo" */ | |
710 | #define FUV_SUBSCRIPT_ARRAY 2 /* "$foo[aindex]" */ | |
711 | #define FUV_SUBSCRIPT_HASH 3 /* "$foo{keyname}" */ | |
712 | #define FUV_SUBSCRIPT_WITHIN 4 /* "within @foo" */ | |
713 | ||
714 | STATIC SV* | |
bfed75c6 | 715 | S_varname(pTHX_ GV *gv, const char *gvtype, PADOFFSET targ, |
29489e7c DM |
716 | SV* keyname, I32 aindex, int subscript_type) |
717 | { | |
718 | AV *av; | |
719 | ||
720 | SV *sv, *name; | |
721 | ||
722 | name = sv_newmortal(); | |
723 | if (gv) { | |
724 | ||
725 | /* simulate gv_fullname4(), but add literal '^' for $^FOO names | |
726 | * XXX get rid of all this if gv_fullnameX() ever supports this | |
727 | * directly */ | |
728 | ||
bfed75c6 | 729 | const char *p; |
29489e7c DM |
730 | HV *hv = GvSTASH(gv); |
731 | sv_setpv(name, gvtype); | |
732 | if (!hv) | |
733 | p = "???"; | |
bfed75c6 | 734 | else if (!(p=HvNAME(hv))) |
29489e7c | 735 | p = "__ANON__"; |
29489e7c DM |
736 | if (strNE(p, "main")) { |
737 | sv_catpv(name,p); | |
738 | sv_catpvn(name,"::", 2); | |
739 | } | |
740 | if (GvNAMELEN(gv)>= 1 && | |
741 | ((unsigned int)*GvNAME(gv)) <= 26) | |
742 | { /* handle $^FOO */ | |
743 | Perl_sv_catpvf(aTHX_ name,"^%c", *GvNAME(gv) + 'A' - 1); | |
744 | sv_catpvn(name,GvNAME(gv)+1,GvNAMELEN(gv)-1); | |
745 | } | |
746 | else | |
747 | sv_catpvn(name,GvNAME(gv),GvNAMELEN(gv)); | |
748 | } | |
749 | else { | |
750 | U32 u; | |
751 | CV *cv = find_runcv(&u); | |
752 | if (!cv || !CvPADLIST(cv)) | |
753 | return Nullsv;; | |
754 | av = (AV*)(*av_fetch(CvPADLIST(cv), 0, FALSE)); | |
755 | sv = *av_fetch(av, targ, FALSE); | |
756 | /* SvLEN in a pad name is not to be trusted */ | |
757 | sv_setpv(name, SvPV_nolen(sv)); | |
758 | } | |
759 | ||
760 | if (subscript_type == FUV_SUBSCRIPT_HASH) { | |
761 | *SvPVX(name) = '$'; | |
762 | sv = NEWSV(0,0); | |
763 | Perl_sv_catpvf(aTHX_ name, "{%s}", | |
764 | pv_display(sv,SvPVX(keyname), SvCUR(keyname), 0, 32)); | |
765 | SvREFCNT_dec(sv); | |
766 | } | |
767 | else if (subscript_type == FUV_SUBSCRIPT_ARRAY) { | |
768 | *SvPVX(name) = '$'; | |
265a12b8 | 769 | Perl_sv_catpvf(aTHX_ name, "[%"IVdf"]", (IV)aindex); |
29489e7c DM |
770 | } |
771 | else if (subscript_type == FUV_SUBSCRIPT_WITHIN) | |
772 | sv_insert(name, 0, 0, "within ", 7); | |
773 | ||
774 | return name; | |
775 | } | |
776 | ||
777 | ||
778 | /* | |
779 | =for apidoc find_uninit_var | |
780 | ||
781 | Find the name of the undefined variable (if any) that caused the operator o | |
782 | to issue a "Use of uninitialized value" warning. | |
783 | If match is true, only return a name if it's value matches uninit_sv. | |
784 | So roughly speaking, if a unary operator (such as OP_COS) generates a | |
785 | warning, then following the direct child of the op may yield an | |
786 | OP_PADSV or OP_GV that gives the name of the undefined variable. On the | |
787 | other hand, with OP_ADD there are two branches to follow, so we only print | |
788 | the variable name if we get an exact match. | |
789 | ||
790 | The name is returned as a mortal SV. | |
791 | ||
792 | Assumes that PL_op is the op that originally triggered the error, and that | |
793 | PL_comppad/PL_curpad points to the currently executing pad. | |
794 | ||
795 | =cut | |
796 | */ | |
797 | ||
798 | STATIC SV * | |
799 | S_find_uninit_var(pTHX_ OP* obase, SV* uninit_sv, bool match) | |
800 | { | |
27da23d5 | 801 | dVAR; |
29489e7c DM |
802 | SV *sv; |
803 | AV *av; | |
804 | SV **svp; | |
805 | GV *gv; | |
806 | OP *o, *o2, *kid; | |
807 | ||
808 | if (!obase || (match && (!uninit_sv || uninit_sv == &PL_sv_undef || | |
809 | uninit_sv == &PL_sv_placeholder))) | |
810 | return Nullsv; | |
811 | ||
812 | switch (obase->op_type) { | |
813 | ||
814 | case OP_RV2AV: | |
815 | case OP_RV2HV: | |
816 | case OP_PADAV: | |
817 | case OP_PADHV: | |
818 | { | |
819 | bool pad = (obase->op_type == OP_PADAV || obase->op_type == OP_PADHV); | |
820 | bool hash = (obase->op_type == OP_PADHV || obase->op_type == OP_RV2HV); | |
112dcc46 RGS |
821 | I32 index = 0; |
822 | SV *keysv = Nullsv; | |
29489e7c DM |
823 | int subscript_type = FUV_SUBSCRIPT_WITHIN; |
824 | ||
825 | if (pad) { /* @lex, %lex */ | |
826 | sv = PAD_SVl(obase->op_targ); | |
827 | gv = Nullgv; | |
828 | } | |
829 | else { | |
830 | if (cUNOPx(obase)->op_first->op_type == OP_GV) { | |
831 | /* @global, %global */ | |
832 | gv = cGVOPx_gv(cUNOPx(obase)->op_first); | |
833 | if (!gv) | |
834 | break; | |
835 | sv = hash ? (SV*)GvHV(gv): (SV*)GvAV(gv); | |
836 | } | |
837 | else /* @{expr}, %{expr} */ | |
838 | return find_uninit_var(cUNOPx(obase)->op_first, | |
839 | uninit_sv, match); | |
840 | } | |
841 | ||
842 | /* attempt to find a match within the aggregate */ | |
843 | if (hash) { | |
844 | keysv = S_find_hash_subscript(aTHX_ (HV*)sv, uninit_sv); | |
845 | if (keysv) | |
846 | subscript_type = FUV_SUBSCRIPT_HASH; | |
847 | } | |
848 | else { | |
849 | index = S_find_array_subscript(aTHX_ (AV*)sv, uninit_sv); | |
850 | if (index >= 0) | |
851 | subscript_type = FUV_SUBSCRIPT_ARRAY; | |
852 | } | |
853 | ||
854 | if (match && subscript_type == FUV_SUBSCRIPT_WITHIN) | |
855 | break; | |
856 | ||
857 | return S_varname(aTHX_ gv, hash ? "%" : "@", obase->op_targ, | |
858 | keysv, index, subscript_type); | |
859 | } | |
860 | ||
861 | case OP_PADSV: | |
862 | if (match && PAD_SVl(obase->op_targ) != uninit_sv) | |
863 | break; | |
864 | return S_varname(aTHX_ Nullgv, "$", obase->op_targ, | |
865 | Nullsv, 0, FUV_SUBSCRIPT_NONE); | |
866 | ||
867 | case OP_GVSV: | |
868 | gv = cGVOPx_gv(obase); | |
869 | if (!gv || (match && GvSV(gv) != uninit_sv)) | |
870 | break; | |
871 | return S_varname(aTHX_ gv, "$", 0, Nullsv, 0, FUV_SUBSCRIPT_NONE); | |
872 | ||
873 | case OP_AELEMFAST: | |
874 | if (obase->op_flags & OPf_SPECIAL) { /* lexical array */ | |
875 | if (match) { | |
876 | av = (AV*)PAD_SV(obase->op_targ); | |
877 | if (!av || SvRMAGICAL(av)) | |
878 | break; | |
879 | svp = av_fetch(av, (I32)obase->op_private, FALSE); | |
880 | if (!svp || *svp != uninit_sv) | |
881 | break; | |
882 | } | |
883 | return S_varname(aTHX_ Nullgv, "$", obase->op_targ, | |
884 | Nullsv, (I32)obase->op_private, FUV_SUBSCRIPT_ARRAY); | |
885 | } | |
886 | else { | |
887 | gv = cGVOPx_gv(obase); | |
888 | if (!gv) | |
889 | break; | |
890 | if (match) { | |
891 | av = GvAV(gv); | |
892 | if (!av || SvRMAGICAL(av)) | |
893 | break; | |
894 | svp = av_fetch(av, (I32)obase->op_private, FALSE); | |
895 | if (!svp || *svp != uninit_sv) | |
896 | break; | |
897 | } | |
898 | return S_varname(aTHX_ gv, "$", 0, | |
899 | Nullsv, (I32)obase->op_private, FUV_SUBSCRIPT_ARRAY); | |
900 | } | |
901 | break; | |
902 | ||
903 | case OP_EXISTS: | |
904 | o = cUNOPx(obase)->op_first; | |
905 | if (!o || o->op_type != OP_NULL || | |
906 | ! (o->op_targ == OP_AELEM || o->op_targ == OP_HELEM)) | |
907 | break; | |
908 | return find_uninit_var(cBINOPo->op_last, uninit_sv, match); | |
909 | ||
910 | case OP_AELEM: | |
911 | case OP_HELEM: | |
912 | if (PL_op == obase) | |
913 | /* $a[uninit_expr] or $h{uninit_expr} */ | |
914 | return find_uninit_var(cBINOPx(obase)->op_last, uninit_sv, match); | |
915 | ||
916 | gv = Nullgv; | |
917 | o = cBINOPx(obase)->op_first; | |
918 | kid = cBINOPx(obase)->op_last; | |
919 | ||
920 | /* get the av or hv, and optionally the gv */ | |
921 | sv = Nullsv; | |
922 | if (o->op_type == OP_PADAV || o->op_type == OP_PADHV) { | |
923 | sv = PAD_SV(o->op_targ); | |
924 | } | |
925 | else if ((o->op_type == OP_RV2AV || o->op_type == OP_RV2HV) | |
926 | && cUNOPo->op_first->op_type == OP_GV) | |
927 | { | |
928 | gv = cGVOPx_gv(cUNOPo->op_first); | |
929 | if (!gv) | |
930 | break; | |
931 | sv = o->op_type == OP_RV2HV ? (SV*)GvHV(gv) : (SV*)GvAV(gv); | |
932 | } | |
933 | if (!sv) | |
934 | break; | |
935 | ||
936 | if (kid && kid->op_type == OP_CONST && SvOK(cSVOPx_sv(kid))) { | |
937 | /* index is constant */ | |
938 | if (match) { | |
939 | if (SvMAGICAL(sv)) | |
940 | break; | |
941 | if (obase->op_type == OP_HELEM) { | |
942 | HE* he = hv_fetch_ent((HV*)sv, cSVOPx_sv(kid), 0, 0); | |
943 | if (!he || HeVAL(he) != uninit_sv) | |
944 | break; | |
945 | } | |
946 | else { | |
947 | svp = av_fetch((AV*)sv, SvIV(cSVOPx_sv(kid)), FALSE); | |
948 | if (!svp || *svp != uninit_sv) | |
949 | break; | |
950 | } | |
951 | } | |
952 | if (obase->op_type == OP_HELEM) | |
953 | return S_varname(aTHX_ gv, "%", o->op_targ, | |
954 | cSVOPx_sv(kid), 0, FUV_SUBSCRIPT_HASH); | |
955 | else | |
956 | return S_varname(aTHX_ gv, "@", o->op_targ, Nullsv, | |
957 | SvIV(cSVOPx_sv(kid)), FUV_SUBSCRIPT_ARRAY); | |
958 | ; | |
959 | } | |
960 | else { | |
961 | /* index is an expression; | |
962 | * attempt to find a match within the aggregate */ | |
963 | if (obase->op_type == OP_HELEM) { | |
964 | SV *keysv = S_find_hash_subscript(aTHX_ (HV*)sv, uninit_sv); | |
965 | if (keysv) | |
966 | return S_varname(aTHX_ gv, "%", o->op_targ, | |
967 | keysv, 0, FUV_SUBSCRIPT_HASH); | |
968 | } | |
969 | else { | |
970 | I32 index = S_find_array_subscript(aTHX_ (AV*)sv, uninit_sv); | |
971 | if (index >= 0) | |
972 | return S_varname(aTHX_ gv, "@", o->op_targ, | |
973 | Nullsv, index, FUV_SUBSCRIPT_ARRAY); | |
974 | } | |
975 | if (match) | |
976 | break; | |
977 | return S_varname(aTHX_ gv, | |
978 | (o->op_type == OP_PADAV || o->op_type == OP_RV2AV) | |
979 | ? "@" : "%", | |
980 | o->op_targ, Nullsv, 0, FUV_SUBSCRIPT_WITHIN); | |
981 | } | |
982 | ||
983 | break; | |
984 | ||
985 | case OP_AASSIGN: | |
986 | /* only examine RHS */ | |
987 | return find_uninit_var(cBINOPx(obase)->op_first, uninit_sv, match); | |
988 | ||
989 | case OP_OPEN: | |
990 | o = cUNOPx(obase)->op_first; | |
991 | if (o->op_type == OP_PUSHMARK) | |
992 | o = o->op_sibling; | |
993 | ||
994 | if (!o->op_sibling) { | |
995 | /* one-arg version of open is highly magical */ | |
996 | ||
997 | if (o->op_type == OP_GV) { /* open FOO; */ | |
998 | gv = cGVOPx_gv(o); | |
999 | if (match && GvSV(gv) != uninit_sv) | |
1000 | break; | |
7a5fa8a2 | 1001 | return S_varname(aTHX_ gv, "$", 0, |
29489e7c DM |
1002 | Nullsv, 0, FUV_SUBSCRIPT_NONE); |
1003 | } | |
1004 | /* other possibilities not handled are: | |
1005 | * open $x; or open my $x; should return '${*$x}' | |
1006 | * open expr; should return '$'.expr ideally | |
1007 | */ | |
1008 | break; | |
1009 | } | |
1010 | goto do_op; | |
1011 | ||
1012 | /* ops where $_ may be an implicit arg */ | |
1013 | case OP_TRANS: | |
1014 | case OP_SUBST: | |
1015 | case OP_MATCH: | |
1016 | if ( !(obase->op_flags & OPf_STACKED)) { | |
1017 | if (uninit_sv == ((obase->op_private & OPpTARGET_MY) | |
1018 | ? PAD_SVl(obase->op_targ) | |
1019 | : DEFSV)) | |
1020 | { | |
1021 | sv = sv_newmortal(); | |
1022 | sv_setpv(sv, "$_"); | |
1023 | return sv; | |
1024 | } | |
1025 | } | |
1026 | goto do_op; | |
1027 | ||
1028 | case OP_PRTF: | |
1029 | case OP_PRINT: | |
1030 | /* skip filehandle as it can't produce 'undef' warning */ | |
1031 | o = cUNOPx(obase)->op_first; | |
1032 | if ((obase->op_flags & OPf_STACKED) && o->op_type == OP_PUSHMARK) | |
1033 | o = o->op_sibling->op_sibling; | |
1034 | goto do_op2; | |
1035 | ||
1036 | ||
e21bd382 | 1037 | case OP_RV2SV: |
29489e7c DM |
1038 | case OP_CUSTOM: |
1039 | case OP_ENTERSUB: | |
1040 | match = 1; /* XS or custom code could trigger random warnings */ | |
1041 | goto do_op; | |
1042 | ||
1043 | case OP_SCHOMP: | |
1044 | case OP_CHOMP: | |
1045 | if (SvROK(PL_rs) && uninit_sv == SvRV(PL_rs)) | |
1046 | return sv_2mortal(newSVpv("${$/}", 0)); | |
1047 | /* FALL THROUGH */ | |
1048 | ||
1049 | default: | |
1050 | do_op: | |
1051 | if (!(obase->op_flags & OPf_KIDS)) | |
1052 | break; | |
1053 | o = cUNOPx(obase)->op_first; | |
1054 | ||
1055 | do_op2: | |
1056 | if (!o) | |
1057 | break; | |
1058 | ||
1059 | /* if all except one arg are constant, or have no side-effects, | |
1060 | * or are optimized away, then it's unambiguous */ | |
1061 | o2 = Nullop; | |
1062 | for (kid=o; kid; kid = kid->op_sibling) { | |
1063 | if (kid && | |
1064 | ( (kid->op_type == OP_CONST && SvOK(cSVOPx_sv(kid))) | |
1065 | || (kid->op_type == OP_NULL && ! (kid->op_flags & OPf_KIDS)) | |
1066 | || (kid->op_type == OP_PUSHMARK) | |
1067 | ) | |
1068 | ) | |
1069 | continue; | |
1070 | if (o2) { /* more than one found */ | |
1071 | o2 = Nullop; | |
1072 | break; | |
1073 | } | |
1074 | o2 = kid; | |
1075 | } | |
1076 | if (o2) | |
1077 | return find_uninit_var(o2, uninit_sv, match); | |
1078 | ||
1079 | /* scan all args */ | |
1080 | while (o) { | |
1081 | sv = find_uninit_var(o, uninit_sv, 1); | |
1082 | if (sv) | |
1083 | return sv; | |
1084 | o = o->op_sibling; | |
1085 | } | |
1086 | break; | |
1087 | } | |
1088 | return Nullsv; | |
1089 | } | |
1090 | ||
1091 | ||
645c22ef DM |
1092 | /* |
1093 | =for apidoc report_uninit | |
1094 | ||
1095 | Print appropriate "Use of uninitialized variable" warning | |
1096 | ||
1097 | =cut | |
1098 | */ | |
1099 | ||
1d7c1841 | 1100 | void |
29489e7c DM |
1101 | Perl_report_uninit(pTHX_ SV* uninit_sv) |
1102 | { | |
1103 | if (PL_op) { | |
112dcc46 | 1104 | SV* varname = Nullsv; |
29489e7c DM |
1105 | if (uninit_sv) { |
1106 | varname = find_uninit_var(PL_op, uninit_sv,0); | |
1107 | if (varname) | |
1108 | sv_insert(varname, 0, 0, " ", 1); | |
1109 | } | |
9014280d | 1110 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
29489e7c DM |
1111 | varname ? SvPV_nolen(varname) : "", |
1112 | " in ", OP_DESC(PL_op)); | |
1113 | } | |
1d7c1841 | 1114 | else |
29489e7c DM |
1115 | Perl_warner(aTHX_ packWARN(WARN_UNINITIALIZED), PL_warn_uninit, |
1116 | "", "", ""); | |
1d7c1841 GS |
1117 | } |
1118 | ||
645c22ef DM |
1119 | /* grab a new IV body from the free list, allocating more if necessary */ |
1120 | ||
76e3520e | 1121 | STATIC XPVIV* |
cea2e8a9 | 1122 | S_new_xiv(pTHX) |
463ee0b2 | 1123 | { |
ea7c11a3 | 1124 | IV* xiv; |
cbe51380 GS |
1125 | LOCK_SV_MUTEX; |
1126 | if (!PL_xiv_root) | |
1127 | more_xiv(); | |
1128 | xiv = PL_xiv_root; | |
1129 | /* | |
1130 | * See comment in more_xiv() -- RAM. | |
1131 | */ | |
1132 | PL_xiv_root = *(IV**)xiv; | |
1133 | UNLOCK_SV_MUTEX; | |
1134 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
1135 | } |
1136 | ||
645c22ef DM |
1137 | /* return an IV body to the free list */ |
1138 | ||
76e3520e | 1139 | STATIC void |
cea2e8a9 | 1140 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 1141 | { |
23e6a22f | 1142 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 1143 | LOCK_SV_MUTEX; |
3280af22 NIS |
1144 | *(IV**)xiv = PL_xiv_root; |
1145 | PL_xiv_root = xiv; | |
cbe51380 | 1146 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
1147 | } |
1148 | ||
645c22ef DM |
1149 | /* allocate another arena's worth of IV bodies */ |
1150 | ||
cbe51380 | 1151 | STATIC void |
cea2e8a9 | 1152 | S_more_xiv(pTHX) |
463ee0b2 | 1153 | { |
ea7c11a3 SM |
1154 | register IV* xiv; |
1155 | register IV* xivend; | |
8c52afec | 1156 | XPV* ptr; |
9c17f24a | 1157 | New(705, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); |
645c22ef | 1158 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
3280af22 | 1159 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ |
a0d0e21e | 1160 | |
ea7c11a3 | 1161 | xiv = (IV*) ptr; |
9c17f24a | 1162 | xivend = &xiv[PERL_ARENA_SIZE / sizeof(IV) - 1]; |
645c22ef | 1163 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ |
3280af22 | 1164 | PL_xiv_root = xiv; |
463ee0b2 | 1165 | while (xiv < xivend) { |
ea7c11a3 | 1166 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
1167 | xiv++; |
1168 | } | |
ea7c11a3 | 1169 | *(IV**)xiv = 0; |
463ee0b2 LW |
1170 | } |
1171 | ||
645c22ef DM |
1172 | /* grab a new NV body from the free list, allocating more if necessary */ |
1173 | ||
76e3520e | 1174 | STATIC XPVNV* |
cea2e8a9 | 1175 | S_new_xnv(pTHX) |
463ee0b2 | 1176 | { |
65202027 | 1177 | NV* xnv; |
cbe51380 GS |
1178 | LOCK_SV_MUTEX; |
1179 | if (!PL_xnv_root) | |
1180 | more_xnv(); | |
1181 | xnv = PL_xnv_root; | |
65202027 | 1182 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
1183 | UNLOCK_SV_MUTEX; |
1184 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
1185 | } |
1186 | ||
645c22ef DM |
1187 | /* return an NV body to the free list */ |
1188 | ||
76e3520e | 1189 | STATIC void |
cea2e8a9 | 1190 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 1191 | { |
65202027 | 1192 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 1193 | LOCK_SV_MUTEX; |
65202027 | 1194 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 1195 | PL_xnv_root = xnv; |
cbe51380 | 1196 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
1197 | } |
1198 | ||
645c22ef DM |
1199 | /* allocate another arena's worth of NV bodies */ |
1200 | ||
cbe51380 | 1201 | STATIC void |
cea2e8a9 | 1202 | S_more_xnv(pTHX) |
463ee0b2 | 1203 | { |
65202027 DS |
1204 | register NV* xnv; |
1205 | register NV* xnvend; | |
612f20c3 | 1206 | XPV *ptr; |
9c17f24a | 1207 | New(711, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); |
612f20c3 GS |
1208 | ptr->xpv_pv = (char*)PL_xnv_arenaroot; |
1209 | PL_xnv_arenaroot = ptr; | |
1210 | ||
1211 | xnv = (NV*) ptr; | |
9c17f24a | 1212 | xnvend = &xnv[PERL_ARENA_SIZE / sizeof(NV) - 1]; |
65202027 | 1213 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ |
3280af22 | 1214 | PL_xnv_root = xnv; |
463ee0b2 | 1215 | while (xnv < xnvend) { |
65202027 | 1216 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
1217 | xnv++; |
1218 | } | |
65202027 | 1219 | *(NV**)xnv = 0; |
463ee0b2 LW |
1220 | } |
1221 | ||
645c22ef DM |
1222 | /* grab a new struct xrv from the free list, allocating more if necessary */ |
1223 | ||
76e3520e | 1224 | STATIC XRV* |
cea2e8a9 | 1225 | S_new_xrv(pTHX) |
ed6116ce LW |
1226 | { |
1227 | XRV* xrv; | |
cbe51380 GS |
1228 | LOCK_SV_MUTEX; |
1229 | if (!PL_xrv_root) | |
1230 | more_xrv(); | |
1231 | xrv = PL_xrv_root; | |
1232 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
1233 | UNLOCK_SV_MUTEX; | |
1234 | return xrv; | |
ed6116ce LW |
1235 | } |
1236 | ||
645c22ef DM |
1237 | /* return a struct xrv to the free list */ |
1238 | ||
76e3520e | 1239 | STATIC void |
cea2e8a9 | 1240 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 1241 | { |
cbe51380 | 1242 | LOCK_SV_MUTEX; |
3280af22 NIS |
1243 | p->xrv_rv = (SV*)PL_xrv_root; |
1244 | PL_xrv_root = p; | |
cbe51380 | 1245 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
1246 | } |
1247 | ||
645c22ef DM |
1248 | /* allocate another arena's worth of struct xrv */ |
1249 | ||
cbe51380 | 1250 | STATIC void |
cea2e8a9 | 1251 | S_more_xrv(pTHX) |
ed6116ce | 1252 | { |
ed6116ce LW |
1253 | register XRV* xrv; |
1254 | register XRV* xrvend; | |
612f20c3 | 1255 | XPV *ptr; |
9c17f24a | 1256 | New(712, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); |
612f20c3 GS |
1257 | ptr->xpv_pv = (char*)PL_xrv_arenaroot; |
1258 | PL_xrv_arenaroot = ptr; | |
1259 | ||
1260 | xrv = (XRV*) ptr; | |
9c17f24a | 1261 | xrvend = &xrv[PERL_ARENA_SIZE / sizeof(XRV) - 1]; |
612f20c3 GS |
1262 | xrv += (sizeof(XPV) - 1) / sizeof(XRV) + 1; |
1263 | PL_xrv_root = xrv; | |
ed6116ce LW |
1264 | while (xrv < xrvend) { |
1265 | xrv->xrv_rv = (SV*)(xrv + 1); | |
1266 | xrv++; | |
1267 | } | |
1268 | xrv->xrv_rv = 0; | |
ed6116ce LW |
1269 | } |
1270 | ||
645c22ef DM |
1271 | /* grab a new struct xpv from the free list, allocating more if necessary */ |
1272 | ||
76e3520e | 1273 | STATIC XPV* |
cea2e8a9 | 1274 | S_new_xpv(pTHX) |
463ee0b2 LW |
1275 | { |
1276 | XPV* xpv; | |
cbe51380 GS |
1277 | LOCK_SV_MUTEX; |
1278 | if (!PL_xpv_root) | |
1279 | more_xpv(); | |
1280 | xpv = PL_xpv_root; | |
1281 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
1282 | UNLOCK_SV_MUTEX; | |
1283 | return xpv; | |
463ee0b2 LW |
1284 | } |
1285 | ||
645c22ef DM |
1286 | /* return a struct xpv to the free list */ |
1287 | ||
76e3520e | 1288 | STATIC void |
cea2e8a9 | 1289 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 1290 | { |
cbe51380 | 1291 | LOCK_SV_MUTEX; |
3280af22 NIS |
1292 | p->xpv_pv = (char*)PL_xpv_root; |
1293 | PL_xpv_root = p; | |
cbe51380 | 1294 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
1295 | } |
1296 | ||
645c22ef DM |
1297 | /* allocate another arena's worth of struct xpv */ |
1298 | ||
cbe51380 | 1299 | STATIC void |
cea2e8a9 | 1300 | S_more_xpv(pTHX) |
463ee0b2 | 1301 | { |
463ee0b2 LW |
1302 | register XPV* xpv; |
1303 | register XPV* xpvend; | |
9c17f24a | 1304 | New(713, xpv, PERL_ARENA_SIZE/sizeof(XPV), XPV); |
612f20c3 GS |
1305 | xpv->xpv_pv = (char*)PL_xpv_arenaroot; |
1306 | PL_xpv_arenaroot = xpv; | |
1307 | ||
9c17f24a | 1308 | xpvend = &xpv[PERL_ARENA_SIZE / sizeof(XPV) - 1]; |
612f20c3 | 1309 | PL_xpv_root = ++xpv; |
463ee0b2 LW |
1310 | while (xpv < xpvend) { |
1311 | xpv->xpv_pv = (char*)(xpv + 1); | |
1312 | xpv++; | |
1313 | } | |
1314 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
1315 | } |
1316 | ||
645c22ef DM |
1317 | /* grab a new struct xpviv from the free list, allocating more if necessary */ |
1318 | ||
932e9ff9 VB |
1319 | STATIC XPVIV* |
1320 | S_new_xpviv(pTHX) | |
1321 | { | |
1322 | XPVIV* xpviv; | |
1323 | LOCK_SV_MUTEX; | |
1324 | if (!PL_xpviv_root) | |
1325 | more_xpviv(); | |
1326 | xpviv = PL_xpviv_root; | |
1327 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
1328 | UNLOCK_SV_MUTEX; | |
1329 | return xpviv; | |
1330 | } | |
1331 | ||
645c22ef DM |
1332 | /* return a struct xpviv to the free list */ |
1333 | ||
932e9ff9 VB |
1334 | STATIC void |
1335 | S_del_xpviv(pTHX_ XPVIV *p) | |
1336 | { | |
1337 | LOCK_SV_MUTEX; | |
1338 | p->xpv_pv = (char*)PL_xpviv_root; | |
1339 | PL_xpviv_root = p; | |
1340 | UNLOCK_SV_MUTEX; | |
1341 | } | |
1342 | ||
645c22ef DM |
1343 | /* allocate another arena's worth of struct xpviv */ |
1344 | ||
932e9ff9 VB |
1345 | STATIC void |
1346 | S_more_xpviv(pTHX) | |
1347 | { | |
1348 | register XPVIV* xpviv; | |
1349 | register XPVIV* xpvivend; | |
9c17f24a | 1350 | New(714, xpviv, PERL_ARENA_SIZE/sizeof(XPVIV), XPVIV); |
612f20c3 GS |
1351 | xpviv->xpv_pv = (char*)PL_xpviv_arenaroot; |
1352 | PL_xpviv_arenaroot = xpviv; | |
1353 | ||
9c17f24a | 1354 | xpvivend = &xpviv[PERL_ARENA_SIZE / sizeof(XPVIV) - 1]; |
612f20c3 | 1355 | PL_xpviv_root = ++xpviv; |
932e9ff9 VB |
1356 | while (xpviv < xpvivend) { |
1357 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
1358 | xpviv++; | |
1359 | } | |
1360 | xpviv->xpv_pv = 0; | |
1361 | } | |
1362 | ||
645c22ef DM |
1363 | /* grab a new struct xpvnv from the free list, allocating more if necessary */ |
1364 | ||
932e9ff9 VB |
1365 | STATIC XPVNV* |
1366 | S_new_xpvnv(pTHX) | |
1367 | { | |
1368 | XPVNV* xpvnv; | |
1369 | LOCK_SV_MUTEX; | |
1370 | if (!PL_xpvnv_root) | |
1371 | more_xpvnv(); | |
1372 | xpvnv = PL_xpvnv_root; | |
1373 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
1374 | UNLOCK_SV_MUTEX; | |
1375 | return xpvnv; | |
1376 | } | |
1377 | ||
645c22ef DM |
1378 | /* return a struct xpvnv to the free list */ |
1379 | ||
932e9ff9 VB |
1380 | STATIC void |
1381 | S_del_xpvnv(pTHX_ XPVNV *p) | |
1382 | { | |
1383 | LOCK_SV_MUTEX; | |
1384 | p->xpv_pv = (char*)PL_xpvnv_root; | |
1385 | PL_xpvnv_root = p; | |
1386 | UNLOCK_SV_MUTEX; | |
1387 | } | |
1388 | ||
645c22ef DM |
1389 | /* allocate another arena's worth of struct xpvnv */ |
1390 | ||
932e9ff9 VB |
1391 | STATIC void |
1392 | S_more_xpvnv(pTHX) | |
1393 | { | |
1394 | register XPVNV* xpvnv; | |
1395 | register XPVNV* xpvnvend; | |
9c17f24a | 1396 | New(715, xpvnv, PERL_ARENA_SIZE/sizeof(XPVNV), XPVNV); |
612f20c3 GS |
1397 | xpvnv->xpv_pv = (char*)PL_xpvnv_arenaroot; |
1398 | PL_xpvnv_arenaroot = xpvnv; | |
1399 | ||
9c17f24a | 1400 | xpvnvend = &xpvnv[PERL_ARENA_SIZE / sizeof(XPVNV) - 1]; |
612f20c3 | 1401 | PL_xpvnv_root = ++xpvnv; |
932e9ff9 VB |
1402 | while (xpvnv < xpvnvend) { |
1403 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
1404 | xpvnv++; | |
1405 | } | |
1406 | xpvnv->xpv_pv = 0; | |
1407 | } | |
1408 | ||
645c22ef DM |
1409 | /* grab a new struct xpvcv from the free list, allocating more if necessary */ |
1410 | ||
932e9ff9 VB |
1411 | STATIC XPVCV* |
1412 | S_new_xpvcv(pTHX) | |
1413 | { | |
1414 | XPVCV* xpvcv; | |
1415 | LOCK_SV_MUTEX; | |
1416 | if (!PL_xpvcv_root) | |
1417 | more_xpvcv(); | |
1418 | xpvcv = PL_xpvcv_root; | |
1419 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
1420 | UNLOCK_SV_MUTEX; | |
1421 | return xpvcv; | |
1422 | } | |
1423 | ||
645c22ef DM |
1424 | /* return a struct xpvcv to the free list */ |
1425 | ||
932e9ff9 VB |
1426 | STATIC void |
1427 | S_del_xpvcv(pTHX_ XPVCV *p) | |
1428 | { | |
1429 | LOCK_SV_MUTEX; | |
1430 | p->xpv_pv = (char*)PL_xpvcv_root; | |
1431 | PL_xpvcv_root = p; | |
1432 | UNLOCK_SV_MUTEX; | |
1433 | } | |
1434 | ||
645c22ef DM |
1435 | /* allocate another arena's worth of struct xpvcv */ |
1436 | ||
932e9ff9 VB |
1437 | STATIC void |
1438 | S_more_xpvcv(pTHX) | |
1439 | { | |
1440 | register XPVCV* xpvcv; | |
1441 | register XPVCV* xpvcvend; | |
9c17f24a | 1442 | New(716, xpvcv, PERL_ARENA_SIZE/sizeof(XPVCV), XPVCV); |
612f20c3 GS |
1443 | xpvcv->xpv_pv = (char*)PL_xpvcv_arenaroot; |
1444 | PL_xpvcv_arenaroot = xpvcv; | |
1445 | ||
9c17f24a | 1446 | xpvcvend = &xpvcv[PERL_ARENA_SIZE / sizeof(XPVCV) - 1]; |
612f20c3 | 1447 | PL_xpvcv_root = ++xpvcv; |
932e9ff9 VB |
1448 | while (xpvcv < xpvcvend) { |
1449 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
1450 | xpvcv++; | |
1451 | } | |
1452 | xpvcv->xpv_pv = 0; | |
1453 | } | |
1454 | ||
645c22ef DM |
1455 | /* grab a new struct xpvav from the free list, allocating more if necessary */ |
1456 | ||
932e9ff9 VB |
1457 | STATIC XPVAV* |
1458 | S_new_xpvav(pTHX) | |
1459 | { | |
1460 | XPVAV* xpvav; | |
1461 | LOCK_SV_MUTEX; | |
1462 | if (!PL_xpvav_root) | |
1463 | more_xpvav(); | |
1464 | xpvav = PL_xpvav_root; | |
1465 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
1466 | UNLOCK_SV_MUTEX; | |
1467 | return xpvav; | |
1468 | } | |
1469 | ||
645c22ef DM |
1470 | /* return a struct xpvav to the free list */ |
1471 | ||
932e9ff9 VB |
1472 | STATIC void |
1473 | S_del_xpvav(pTHX_ XPVAV *p) | |
1474 | { | |
1475 | LOCK_SV_MUTEX; | |
1476 | p->xav_array = (char*)PL_xpvav_root; | |
1477 | PL_xpvav_root = p; | |
1478 | UNLOCK_SV_MUTEX; | |
1479 | } | |
1480 | ||
645c22ef DM |
1481 | /* allocate another arena's worth of struct xpvav */ |
1482 | ||
932e9ff9 VB |
1483 | STATIC void |
1484 | S_more_xpvav(pTHX) | |
1485 | { | |
1486 | register XPVAV* xpvav; | |
1487 | register XPVAV* xpvavend; | |
9c17f24a | 1488 | New(717, xpvav, PERL_ARENA_SIZE/sizeof(XPVAV), XPVAV); |
612f20c3 GS |
1489 | xpvav->xav_array = (char*)PL_xpvav_arenaroot; |
1490 | PL_xpvav_arenaroot = xpvav; | |
1491 | ||
9c17f24a | 1492 | xpvavend = &xpvav[PERL_ARENA_SIZE / sizeof(XPVAV) - 1]; |
612f20c3 | 1493 | PL_xpvav_root = ++xpvav; |
932e9ff9 VB |
1494 | while (xpvav < xpvavend) { |
1495 | xpvav->xav_array = (char*)(xpvav + 1); | |
1496 | xpvav++; | |
1497 | } | |
1498 | xpvav->xav_array = 0; | |
1499 | } | |
1500 | ||
645c22ef DM |
1501 | /* grab a new struct xpvhv from the free list, allocating more if necessary */ |
1502 | ||
932e9ff9 VB |
1503 | STATIC XPVHV* |
1504 | S_new_xpvhv(pTHX) | |
1505 | { | |
1506 | XPVHV* xpvhv; | |
1507 | LOCK_SV_MUTEX; | |
1508 | if (!PL_xpvhv_root) | |
1509 | more_xpvhv(); | |
1510 | xpvhv = PL_xpvhv_root; | |
1511 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
1512 | UNLOCK_SV_MUTEX; | |
1513 | return xpvhv; | |
1514 | } | |
1515 | ||
645c22ef DM |
1516 | /* return a struct xpvhv to the free list */ |
1517 | ||
932e9ff9 VB |
1518 | STATIC void |
1519 | S_del_xpvhv(pTHX_ XPVHV *p) | |
1520 | { | |
1521 | LOCK_SV_MUTEX; | |
1522 | p->xhv_array = (char*)PL_xpvhv_root; | |
1523 | PL_xpvhv_root = p; | |
1524 | UNLOCK_SV_MUTEX; | |
1525 | } | |
1526 | ||
645c22ef DM |
1527 | /* allocate another arena's worth of struct xpvhv */ |
1528 | ||
932e9ff9 VB |
1529 | STATIC void |
1530 | S_more_xpvhv(pTHX) | |
1531 | { | |
1532 | register XPVHV* xpvhv; | |
1533 | register XPVHV* xpvhvend; | |
9c17f24a | 1534 | New(718, xpvhv, PERL_ARENA_SIZE/sizeof(XPVHV), XPVHV); |
612f20c3 GS |
1535 | xpvhv->xhv_array = (char*)PL_xpvhv_arenaroot; |
1536 | PL_xpvhv_arenaroot = xpvhv; | |
1537 | ||
9c17f24a | 1538 | xpvhvend = &xpvhv[PERL_ARENA_SIZE / sizeof(XPVHV) - 1]; |
612f20c3 | 1539 | PL_xpvhv_root = ++xpvhv; |
932e9ff9 VB |
1540 | while (xpvhv < xpvhvend) { |
1541 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
1542 | xpvhv++; | |
1543 | } | |
1544 | xpvhv->xhv_array = 0; | |
1545 | } | |
1546 | ||
645c22ef DM |
1547 | /* grab a new struct xpvmg from the free list, allocating more if necessary */ |
1548 | ||
932e9ff9 VB |
1549 | STATIC XPVMG* |
1550 | S_new_xpvmg(pTHX) | |
1551 | { | |
1552 | XPVMG* xpvmg; | |
1553 | LOCK_SV_MUTEX; | |
1554 | if (!PL_xpvmg_root) | |
1555 | more_xpvmg(); | |
1556 | xpvmg = PL_xpvmg_root; | |
1557 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
1558 | UNLOCK_SV_MUTEX; | |
1559 | return xpvmg; | |
1560 | } | |
1561 | ||
645c22ef DM |
1562 | /* return a struct xpvmg to the free list */ |
1563 | ||
932e9ff9 VB |
1564 | STATIC void |
1565 | S_del_xpvmg(pTHX_ XPVMG *p) | |
1566 | { | |
1567 | LOCK_SV_MUTEX; | |
1568 | p->xpv_pv = (char*)PL_xpvmg_root; | |
1569 | PL_xpvmg_root = p; | |
1570 | UNLOCK_SV_MUTEX; | |
1571 | } | |
1572 | ||
645c22ef DM |
1573 | /* allocate another arena's worth of struct xpvmg */ |
1574 | ||
932e9ff9 VB |
1575 | STATIC void |
1576 | S_more_xpvmg(pTHX) | |
1577 | { | |
1578 | register XPVMG* xpvmg; | |
1579 | register XPVMG* xpvmgend; | |
9c17f24a | 1580 | New(719, xpvmg, PERL_ARENA_SIZE/sizeof(XPVMG), XPVMG); |
612f20c3 GS |
1581 | xpvmg->xpv_pv = (char*)PL_xpvmg_arenaroot; |
1582 | PL_xpvmg_arenaroot = xpvmg; | |
1583 | ||
9c17f24a | 1584 | xpvmgend = &xpvmg[PERL_ARENA_SIZE / sizeof(XPVMG) - 1]; |
612f20c3 | 1585 | PL_xpvmg_root = ++xpvmg; |
932e9ff9 VB |
1586 | while (xpvmg < xpvmgend) { |
1587 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
1588 | xpvmg++; | |
1589 | } | |
1590 | xpvmg->xpv_pv = 0; | |
1591 | } | |
1592 | ||
645c22ef DM |
1593 | /* grab a new struct xpvlv from the free list, allocating more if necessary */ |
1594 | ||
932e9ff9 VB |
1595 | STATIC XPVLV* |
1596 | S_new_xpvlv(pTHX) | |
1597 | { | |
1598 | XPVLV* xpvlv; | |
1599 | LOCK_SV_MUTEX; | |
1600 | if (!PL_xpvlv_root) | |
1601 | more_xpvlv(); | |
1602 | xpvlv = PL_xpvlv_root; | |
1603 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
1604 | UNLOCK_SV_MUTEX; | |
1605 | return xpvlv; | |
1606 | } | |
1607 | ||
645c22ef DM |
1608 | /* return a struct xpvlv to the free list */ |
1609 | ||
932e9ff9 VB |
1610 | STATIC void |
1611 | S_del_xpvlv(pTHX_ XPVLV *p) | |
1612 | { | |
1613 | LOCK_SV_MUTEX; | |
1614 | p->xpv_pv = (char*)PL_xpvlv_root; | |
1615 | PL_xpvlv_root = p; | |
1616 | UNLOCK_SV_MUTEX; | |
1617 | } | |
1618 | ||
645c22ef DM |
1619 | /* allocate another arena's worth of struct xpvlv */ |
1620 | ||
932e9ff9 VB |
1621 | STATIC void |
1622 | S_more_xpvlv(pTHX) | |
1623 | { | |
1624 | register XPVLV* xpvlv; | |
1625 | register XPVLV* xpvlvend; | |
9c17f24a | 1626 | New(720, xpvlv, PERL_ARENA_SIZE/sizeof(XPVLV), XPVLV); |
612f20c3 GS |
1627 | xpvlv->xpv_pv = (char*)PL_xpvlv_arenaroot; |
1628 | PL_xpvlv_arenaroot = xpvlv; | |
1629 | ||
9c17f24a | 1630 | xpvlvend = &xpvlv[PERL_ARENA_SIZE / sizeof(XPVLV) - 1]; |
612f20c3 | 1631 | PL_xpvlv_root = ++xpvlv; |
932e9ff9 VB |
1632 | while (xpvlv < xpvlvend) { |
1633 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
1634 | xpvlv++; | |
1635 | } | |
1636 | xpvlv->xpv_pv = 0; | |
1637 | } | |
1638 | ||
645c22ef DM |
1639 | /* grab a new struct xpvbm from the free list, allocating more if necessary */ |
1640 | ||
932e9ff9 VB |
1641 | STATIC XPVBM* |
1642 | S_new_xpvbm(pTHX) | |
1643 | { | |
1644 | XPVBM* xpvbm; | |
1645 | LOCK_SV_MUTEX; | |
1646 | if (!PL_xpvbm_root) | |
1647 | more_xpvbm(); | |
1648 | xpvbm = PL_xpvbm_root; | |
1649 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
1650 | UNLOCK_SV_MUTEX; | |
1651 | return xpvbm; | |
1652 | } | |
1653 | ||
645c22ef DM |
1654 | /* return a struct xpvbm to the free list */ |
1655 | ||
932e9ff9 VB |
1656 | STATIC void |
1657 | S_del_xpvbm(pTHX_ XPVBM *p) | |
1658 | { | |
1659 | LOCK_SV_MUTEX; | |
1660 | p->xpv_pv = (char*)PL_xpvbm_root; | |
1661 | PL_xpvbm_root = p; | |
1662 | UNLOCK_SV_MUTEX; | |
1663 | } | |
1664 | ||
645c22ef DM |
1665 | /* allocate another arena's worth of struct xpvbm */ |
1666 | ||
932e9ff9 VB |
1667 | STATIC void |
1668 | S_more_xpvbm(pTHX) | |
1669 | { | |
1670 | register XPVBM* xpvbm; | |
1671 | register XPVBM* xpvbmend; | |
9c17f24a | 1672 | New(721, xpvbm, PERL_ARENA_SIZE/sizeof(XPVBM), XPVBM); |
612f20c3 GS |
1673 | xpvbm->xpv_pv = (char*)PL_xpvbm_arenaroot; |
1674 | PL_xpvbm_arenaroot = xpvbm; | |
1675 | ||
9c17f24a | 1676 | xpvbmend = &xpvbm[PERL_ARENA_SIZE / sizeof(XPVBM) - 1]; |
612f20c3 | 1677 | PL_xpvbm_root = ++xpvbm; |
932e9ff9 VB |
1678 | while (xpvbm < xpvbmend) { |
1679 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
1680 | xpvbm++; | |
1681 | } | |
1682 | xpvbm->xpv_pv = 0; | |
1683 | } | |
1684 | ||
7bab3ede MB |
1685 | #define my_safemalloc(s) (void*)safemalloc(s) |
1686 | #define my_safefree(p) safefree((char*)p) | |
463ee0b2 | 1687 | |
d33b2eba | 1688 | #ifdef PURIFY |
463ee0b2 | 1689 | |
d33b2eba GS |
1690 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
1691 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 1692 | |
d33b2eba GS |
1693 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
1694 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 1695 | |
d33b2eba GS |
1696 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
1697 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 1698 | |
d33b2eba GS |
1699 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
1700 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 1701 | |
d33b2eba GS |
1702 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
1703 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 1704 | |
d33b2eba GS |
1705 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
1706 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 1707 | |
d33b2eba GS |
1708 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
1709 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 1710 | |
d33b2eba GS |
1711 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
1712 | #define del_XPVAV(p) my_safefree(p) | |
1713 | ||
1714 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
1715 | #define del_XPVHV(p) my_safefree(p) | |
1c846c1f | 1716 | |
d33b2eba GS |
1717 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
1718 | #define del_XPVMG(p) my_safefree(p) | |
1719 | ||
1720 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
1721 | #define del_XPVLV(p) my_safefree(p) | |
1722 | ||
1723 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
1724 | #define del_XPVBM(p) my_safefree(p) | |
1725 | ||
1726 | #else /* !PURIFY */ | |
1727 | ||
1728 | #define new_XIV() (void*)new_xiv() | |
1729 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
1730 | ||
1731 | #define new_XNV() (void*)new_xnv() | |
1732 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 1733 | |
d33b2eba GS |
1734 | #define new_XRV() (void*)new_xrv() |
1735 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 1736 | |
d33b2eba GS |
1737 | #define new_XPV() (void*)new_xpv() |
1738 | #define del_XPV(p) del_xpv((XPV *)p) | |
1739 | ||
1740 | #define new_XPVIV() (void*)new_xpviv() | |
1741 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
1742 | ||
1743 | #define new_XPVNV() (void*)new_xpvnv() | |
1744 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
1745 | ||
1746 | #define new_XPVCV() (void*)new_xpvcv() | |
1747 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
1748 | ||
1749 | #define new_XPVAV() (void*)new_xpvav() | |
1750 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
1751 | ||
1752 | #define new_XPVHV() (void*)new_xpvhv() | |
1753 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
1c846c1f | 1754 | |
d33b2eba GS |
1755 | #define new_XPVMG() (void*)new_xpvmg() |
1756 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
1757 | ||
1758 | #define new_XPVLV() (void*)new_xpvlv() | |
1759 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
1760 | ||
1761 | #define new_XPVBM() (void*)new_xpvbm() | |
1762 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
1763 | ||
1764 | #endif /* PURIFY */ | |
9b94d1dd | 1765 | |
d33b2eba GS |
1766 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
1767 | #define del_XPVGV(p) my_safefree(p) | |
1c846c1f | 1768 | |
d33b2eba GS |
1769 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) |
1770 | #define del_XPVFM(p) my_safefree(p) | |
1c846c1f | 1771 | |
d33b2eba GS |
1772 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
1773 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 1774 | |
954c1994 GS |
1775 | /* |
1776 | =for apidoc sv_upgrade | |
1777 | ||
ff276b08 | 1778 | Upgrade an SV to a more complex form. Generally adds a new body type to the |
645c22ef | 1779 | SV, then copies across as much information as possible from the old body. |
ff276b08 | 1780 | You generally want to use the C<SvUPGRADE> macro wrapper. See also C<svtype>. |
954c1994 GS |
1781 | |
1782 | =cut | |
1783 | */ | |
1784 | ||
79072805 | 1785 | bool |
864dbfa3 | 1786 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 | 1787 | { |
e763e3dc | 1788 | |
d2e56290 NC |
1789 | char* pv; |
1790 | U32 cur; | |
1791 | U32 len; | |
1792 | IV iv; | |
1793 | NV nv; | |
1794 | MAGIC* magic; | |
1795 | HV* stash; | |
79072805 | 1796 | |
765f542d NC |
1797 | if (mt != SVt_PV && SvIsCOW(sv)) { |
1798 | sv_force_normal_flags(sv, 0); | |
f130fd45 NIS |
1799 | } |
1800 | ||
79072805 LW |
1801 | if (SvTYPE(sv) == mt) |
1802 | return TRUE; | |
1803 | ||
d2e56290 NC |
1804 | pv = NULL; |
1805 | cur = 0; | |
1806 | len = 0; | |
1807 | iv = 0; | |
1808 | nv = 0.0; | |
1809 | magic = NULL; | |
1810 | stash = Nullhv; | |
1811 | ||
79072805 LW |
1812 | switch (SvTYPE(sv)) { |
1813 | case SVt_NULL: | |
79072805 | 1814 | break; |
79072805 | 1815 | case SVt_IV: |
463ee0b2 | 1816 | iv = SvIVX(sv); |
79072805 | 1817 | del_XIV(SvANY(sv)); |
ed6116ce | 1818 | if (mt == SVt_NV) |
463ee0b2 | 1819 | mt = SVt_PVNV; |
ed6116ce LW |
1820 | else if (mt < SVt_PVIV) |
1821 | mt = SVt_PVIV; | |
79072805 LW |
1822 | break; |
1823 | case SVt_NV: | |
463ee0b2 | 1824 | nv = SvNVX(sv); |
79072805 | 1825 | del_XNV(SvANY(sv)); |
ed6116ce | 1826 | if (mt < SVt_PVNV) |
79072805 LW |
1827 | mt = SVt_PVNV; |
1828 | break; | |
ed6116ce LW |
1829 | case SVt_RV: |
1830 | pv = (char*)SvRV(sv); | |
ed6116ce | 1831 | del_XRV(SvANY(sv)); |
ed6116ce | 1832 | break; |
79072805 | 1833 | case SVt_PV: |
463ee0b2 | 1834 | pv = SvPVX(sv); |
79072805 LW |
1835 | cur = SvCUR(sv); |
1836 | len = SvLEN(sv); | |
79072805 | 1837 | del_XPV(SvANY(sv)); |
748a9306 LW |
1838 | if (mt <= SVt_IV) |
1839 | mt = SVt_PVIV; | |
1840 | else if (mt == SVt_NV) | |
1841 | mt = SVt_PVNV; | |
79072805 LW |
1842 | break; |
1843 | case SVt_PVIV: | |
463ee0b2 | 1844 | pv = SvPVX(sv); |
79072805 LW |
1845 | cur = SvCUR(sv); |
1846 | len = SvLEN(sv); | |
463ee0b2 | 1847 | iv = SvIVX(sv); |
79072805 LW |
1848 | del_XPVIV(SvANY(sv)); |
1849 | break; | |
1850 | case SVt_PVNV: | |
463ee0b2 | 1851 | pv = SvPVX(sv); |
79072805 LW |
1852 | cur = SvCUR(sv); |
1853 | len = SvLEN(sv); | |
463ee0b2 LW |
1854 | iv = SvIVX(sv); |
1855 | nv = SvNVX(sv); | |
79072805 LW |
1856 | del_XPVNV(SvANY(sv)); |
1857 | break; | |
1858 | case SVt_PVMG: | |
0ec50a73 NC |
1859 | /* Because the XPVMG of PL_mess_sv isn't allocated from the arena, |
1860 | there's no way that it can be safely upgraded, because perl.c | |
1861 | expects to Safefree(SvANY(PL_mess_sv)) */ | |
1862 | assert(sv != PL_mess_sv); | |
463ee0b2 | 1863 | pv = SvPVX(sv); |
79072805 LW |
1864 | cur = SvCUR(sv); |
1865 | len = SvLEN(sv); | |
463ee0b2 LW |
1866 | iv = SvIVX(sv); |
1867 | nv = SvNVX(sv); | |
79072805 LW |
1868 | magic = SvMAGIC(sv); |
1869 | stash = SvSTASH(sv); | |
1870 | del_XPVMG(SvANY(sv)); | |
1871 | break; | |
1872 | default: | |
cea2e8a9 | 1873 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
1874 | } |
1875 | ||
ffb05e06 NC |
1876 | SvFLAGS(sv) &= ~SVTYPEMASK; |
1877 | SvFLAGS(sv) |= mt; | |
1878 | ||
79072805 LW |
1879 | switch (mt) { |
1880 | case SVt_NULL: | |
cea2e8a9 | 1881 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
1882 | case SVt_IV: |
1883 | SvANY(sv) = new_XIV(); | |
45977657 | 1884 | SvIV_set(sv, iv); |
79072805 LW |
1885 | break; |
1886 | case SVt_NV: | |
1887 | SvANY(sv) = new_XNV(); | |
9d6ce603 | 1888 | SvNV_set(sv, nv); |
79072805 | 1889 | break; |
ed6116ce LW |
1890 | case SVt_RV: |
1891 | SvANY(sv) = new_XRV(); | |
b162af07 | 1892 | SvRV_set(sv, (SV*)pv); |
ed6116ce | 1893 | break; |
79072805 LW |
1894 | case SVt_PVHV: |
1895 | SvANY(sv) = new_XPVHV(); | |
bd4b1eb5 NC |
1896 | HvRITER(sv) = 0; |
1897 | HvEITER(sv) = 0; | |
1898 | HvPMROOT(sv) = 0; | |
1899 | HvNAME(sv) = 0; | |
463ee0b2 LW |
1900 | HvFILL(sv) = 0; |
1901 | HvMAX(sv) = 0; | |
8aacddc1 NIS |
1902 | HvTOTALKEYS(sv) = 0; |
1903 | HvPLACEHOLDERS(sv) = 0; | |
bd4b1eb5 NC |
1904 | |
1905 | /* Fall through... */ | |
1906 | if (0) { | |
1907 | case SVt_PVAV: | |
1908 | SvANY(sv) = new_XPVAV(); | |
1909 | AvMAX(sv) = -1; | |
1910 | AvFILLp(sv) = -1; | |
1911 | AvALLOC(sv) = 0; | |
1912 | AvARYLEN(sv)= 0; | |
1913 | AvFLAGS(sv) = AVf_REAL; | |
1914 | SvIV_set(sv, 0); | |
1915 | SvNV_set(sv, 0.0); | |
1916 | } | |
1917 | /* to here. */ | |
c2bfdfaf NC |
1918 | /* XXX? Only SVt_NULL is ever upgraded to AV or HV? */ |
1919 | assert(!pv); | |
8bd4d4c5 NC |
1920 | /* FIXME. Should be able to remove all this if()... if the above |
1921 | assertion is genuinely always true. */ | |
1922 | if(SvOOK(sv)) { | |
1923 | pv -= iv; | |
1924 | SvFLAGS(sv) &= ~SVf_OOK; | |
1925 | } | |
1926 | Safefree(pv); | |
bd4b1eb5 | 1927 | SvPV_set(sv, (char*)0); |
b162af07 SP |
1928 | SvMAGIC_set(sv, magic); |
1929 | SvSTASH_set(sv, stash); | |
79072805 | 1930 | break; |
bd4b1eb5 NC |
1931 | |
1932 | case SVt_PVIO: | |
1933 | SvANY(sv) = new_XPVIO(); | |
1934 | Zero(SvANY(sv), 1, XPVIO); | |
1935 | IoPAGE_LEN(sv) = 60; | |
1936 | goto set_magic_common; | |
1937 | case SVt_PVFM: | |
1938 | SvANY(sv) = new_XPVFM(); | |
1939 | Zero(SvANY(sv), 1, XPVFM); | |
1940 | goto set_magic_common; | |
1941 | case SVt_PVBM: | |
1942 | SvANY(sv) = new_XPVBM(); | |
1943 | BmRARE(sv) = 0; | |
1944 | BmUSEFUL(sv) = 0; | |
1945 | BmPREVIOUS(sv) = 0; | |
1946 | goto set_magic_common; | |
1947 | case SVt_PVGV: | |
1948 | SvANY(sv) = new_XPVGV(); | |
1949 | GvGP(sv) = 0; | |
1950 | GvNAME(sv) = 0; | |
1951 | GvNAMELEN(sv) = 0; | |
1952 | GvSTASH(sv) = 0; | |
1953 | GvFLAGS(sv) = 0; | |
1954 | goto set_magic_common; | |
79072805 LW |
1955 | case SVt_PVCV: |
1956 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1957 | Zero(SvANY(sv), 1, XPVCV); |
bd4b1eb5 NC |
1958 | goto set_magic_common; |
1959 | case SVt_PVLV: | |
1960 | SvANY(sv) = new_XPVLV(); | |
1961 | LvTARGOFF(sv) = 0; | |
1962 | LvTARGLEN(sv) = 0; | |
1963 | LvTARG(sv) = 0; | |
1964 | LvTYPE(sv) = 0; | |
93a17b20 | 1965 | GvGP(sv) = 0; |
79072805 LW |
1966 | GvNAME(sv) = 0; |
1967 | GvNAMELEN(sv) = 0; | |
1968 | GvSTASH(sv) = 0; | |
a5f75d66 | 1969 | GvFLAGS(sv) = 0; |
bd4b1eb5 NC |
1970 | /* Fall through. */ |
1971 | if (0) { | |
1972 | case SVt_PVMG: | |
1973 | SvANY(sv) = new_XPVMG(); | |
1974 | } | |
1975 | set_magic_common: | |
b162af07 SP |
1976 | SvMAGIC_set(sv, magic); |
1977 | SvSTASH_set(sv, stash); | |
bd4b1eb5 NC |
1978 | /* Fall through. */ |
1979 | if (0) { | |
1980 | case SVt_PVNV: | |
1981 | SvANY(sv) = new_XPVNV(); | |
1982 | } | |
9d6ce603 | 1983 | SvNV_set(sv, nv); |
bd4b1eb5 NC |
1984 | /* Fall through. */ |
1985 | if (0) { | |
1986 | case SVt_PVIV: | |
1987 | SvANY(sv) = new_XPVIV(); | |
1988 | if (SvNIOK(sv)) | |
1989 | (void)SvIOK_on(sv); | |
1990 | SvNOK_off(sv); | |
1991 | } | |
1992 | SvIV_set(sv, iv); | |
1993 | /* Fall through. */ | |
1994 | if (0) { | |
1995 | case SVt_PV: | |
1996 | SvANY(sv) = new_XPV(); | |
1997 | } | |
f880fe2f | 1998 | SvPV_set(sv, pv); |
b162af07 SP |
1999 | SvCUR_set(sv, cur); |
2000 | SvLEN_set(sv, len); | |
8990e307 LW |
2001 | break; |
2002 | } | |
79072805 LW |
2003 | return TRUE; |
2004 | } | |
2005 | ||
645c22ef DM |
2006 | /* |
2007 | =for apidoc sv_backoff | |
2008 | ||
2009 | Remove any string offset. You should normally use the C<SvOOK_off> macro | |
2010 | wrapper instead. | |
2011 | ||
2012 | =cut | |
2013 | */ | |
2014 | ||
79072805 | 2015 | int |
864dbfa3 | 2016 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
2017 | { |
2018 | assert(SvOOK(sv)); | |
463ee0b2 LW |
2019 | if (SvIVX(sv)) { |
2020 | char *s = SvPVX(sv); | |
b162af07 | 2021 | SvLEN_set(sv, SvLEN(sv) + SvIVX(sv)); |
f880fe2f | 2022 | SvPV_set(sv, SvPVX(sv) - SvIVX(sv)); |
79072805 | 2023 | SvIV_set(sv, 0); |
463ee0b2 | 2024 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
2025 | } |
2026 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 2027 | return 0; |
79072805 LW |
2028 | } |
2029 | ||
954c1994 GS |
2030 | /* |
2031 | =for apidoc sv_grow | |
2032 | ||
645c22ef DM |
2033 | Expands the character buffer in the SV. If necessary, uses C<sv_unref> and |
2034 | upgrades the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
2035 | Use the C<SvGROW> wrapper instead. | |
954c1994 GS |
2036 | |
2037 | =cut | |
2038 | */ | |
2039 | ||
79072805 | 2040 | char * |
864dbfa3 | 2041 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
2042 | { |
2043 | register char *s; | |
2044 | ||
55497cff | 2045 | #ifdef HAS_64K_LIMIT |
79072805 | 2046 | if (newlen >= 0x10000) { |
1d7c1841 GS |
2047 | PerlIO_printf(Perl_debug_log, |
2048 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
2049 | my_exit(1); |
2050 | } | |
55497cff | 2051 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
2052 | if (SvROK(sv)) |
2053 | sv_unref(sv); | |
79072805 LW |
2054 | if (SvTYPE(sv) < SVt_PV) { |
2055 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 2056 | s = SvPVX(sv); |
79072805 LW |
2057 | } |
2058 | else if (SvOOK(sv)) { /* pv is offset? */ | |
2059 | sv_backoff(sv); | |
463ee0b2 | 2060 | s = SvPVX(sv); |
79072805 LW |
2061 | if (newlen > SvLEN(sv)) |
2062 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
2063 | #ifdef HAS_64K_LIMIT |
2064 | if (newlen >= 0x10000) | |
2065 | newlen = 0xFFFF; | |
2066 | #endif | |
79072805 | 2067 | } |
bc44a8a2 | 2068 | else |
463ee0b2 | 2069 | s = SvPVX(sv); |
54f0641b | 2070 | |
79072805 | 2071 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 2072 | if (SvLEN(sv) && s) { |
7bab3ede | 2073 | #ifdef MYMALLOC |
8d6dde3e IZ |
2074 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
2075 | if (newlen <= l) { | |
2076 | SvLEN_set(sv, l); | |
2077 | return s; | |
2078 | } else | |
c70c8a0a | 2079 | #endif |
79072805 | 2080 | Renew(s,newlen,char); |
8d6dde3e | 2081 | } |
bfed75c6 | 2082 | else { |
4e83176d | 2083 | New(703, s, newlen, char); |
40565179 | 2084 | if (SvPVX(sv) && SvCUR(sv)) { |
54f0641b | 2085 | Move(SvPVX(sv), s, (newlen < SvCUR(sv)) ? newlen : SvCUR(sv), char); |
40565179 | 2086 | } |
4e83176d | 2087 | } |
79072805 | 2088 | SvPV_set(sv, s); |
e1ec3a88 | 2089 | SvLEN_set(sv, newlen); |
79072805 LW |
2090 | } |
2091 | return s; | |
2092 | } | |
2093 | ||
954c1994 GS |
2094 | /* |
2095 | =for apidoc sv_setiv | |
2096 | ||
645c22ef DM |
2097 | Copies an integer into the given SV, upgrading first if necessary. |
2098 | Does not handle 'set' magic. See also C<sv_setiv_mg>. | |
954c1994 GS |
2099 | |
2100 | =cut | |
2101 | */ | |
2102 | ||
79072805 | 2103 | void |
864dbfa3 | 2104 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 2105 | { |
765f542d | 2106 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 LW |
2107 | switch (SvTYPE(sv)) { |
2108 | case SVt_NULL: | |
79072805 | 2109 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
2110 | break; |
2111 | case SVt_NV: | |
2112 | sv_upgrade(sv, SVt_PVNV); | |
2113 | break; | |
ed6116ce | 2114 | case SVt_RV: |
463ee0b2 | 2115 | case SVt_PV: |
79072805 | 2116 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 2117 | break; |
a0d0e21e LW |
2118 | |
2119 | case SVt_PVGV: | |
a0d0e21e LW |
2120 | case SVt_PVAV: |
2121 | case SVt_PVHV: | |
2122 | case SVt_PVCV: | |
2123 | case SVt_PVFM: | |
2124 | case SVt_PVIO: | |
411caa50 | 2125 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
53e06cf0 | 2126 | OP_DESC(PL_op)); |
463ee0b2 | 2127 | } |
a0d0e21e | 2128 | (void)SvIOK_only(sv); /* validate number */ |
45977657 | 2129 | SvIV_set(sv, i); |
463ee0b2 | 2130 | SvTAINT(sv); |
79072805 LW |
2131 | } |
2132 | ||
954c1994 GS |
2133 | /* |
2134 | =for apidoc sv_setiv_mg | |
2135 | ||
2136 | Like C<sv_setiv>, but also handles 'set' magic. | |
2137 | ||
2138 | =cut | |
2139 | */ | |
2140 | ||
79072805 | 2141 | void |
864dbfa3 | 2142 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
2143 | { |
2144 | sv_setiv(sv,i); | |
2145 | SvSETMAGIC(sv); | |
2146 | } | |
2147 | ||
954c1994 GS |
2148 | /* |
2149 | =for apidoc sv_setuv | |
2150 | ||
645c22ef DM |
2151 | Copies an unsigned integer into the given SV, upgrading first if necessary. |
2152 | Does not handle 'set' magic. See also C<sv_setuv_mg>. | |
954c1994 GS |
2153 | |
2154 | =cut | |
2155 | */ | |
2156 | ||
ef50df4b | 2157 | void |
864dbfa3 | 2158 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 2159 | { |
55ada374 NC |
2160 | /* With these two if statements: |
2161 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 2162 | |
55ada374 NC |
2163 | without |
2164 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 2165 | |
55ada374 NC |
2166 | If you wish to remove them, please benchmark to see what the effect is |
2167 | */ | |
28e5dec8 JH |
2168 | if (u <= (UV)IV_MAX) { |
2169 | sv_setiv(sv, (IV)u); | |
2170 | return; | |
2171 | } | |
25da4f38 IZ |
2172 | sv_setiv(sv, 0); |
2173 | SvIsUV_on(sv); | |
607fa7f2 | 2174 | SvUV_set(sv, u); |
55497cff | 2175 | } |
2176 | ||
954c1994 GS |
2177 | /* |
2178 | =for apidoc sv_setuv_mg | |
2179 | ||
2180 | Like C<sv_setuv>, but also handles 'set' magic. | |
2181 | ||
2182 | =cut | |
2183 | */ | |
2184 | ||
55497cff | 2185 | void |
864dbfa3 | 2186 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b | 2187 | { |
55ada374 NC |
2188 | /* With these two if statements: |
2189 | u=1.49 s=0.52 cu=72.49 cs=10.64 scripts=270 tests=20865 | |
d460ef45 | 2190 | |
55ada374 NC |
2191 | without |
2192 | u=1.35 s=0.47 cu=73.45 cs=11.43 scripts=270 tests=20865 | |
d460ef45 | 2193 | |
55ada374 NC |
2194 | If you wish to remove them, please benchmark to see what the effect is |
2195 | */ | |
28e5dec8 JH |
2196 | if (u <= (UV)IV_MAX) { |
2197 | sv_setiv(sv, (IV)u); | |
2198 | } else { | |
2199 | sv_setiv(sv, 0); | |
2200 | SvIsUV_on(sv); | |
2201 | sv_setuv(sv,u); | |
2202 | } | |
ef50df4b GS |
2203 | SvSETMAGIC(sv); |
2204 | } | |
2205 | ||
954c1994 GS |
2206 | /* |
2207 | =for apidoc sv_setnv | |
2208 | ||
645c22ef DM |
2209 | Copies a double into the given SV, upgrading first if necessary. |
2210 | Does not handle 'set' magic. See also C<sv_setnv_mg>. | |
954c1994 GS |
2211 | |
2212 | =cut | |
2213 | */ | |
2214 | ||
ef50df4b | 2215 | void |
65202027 | 2216 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 2217 | { |
765f542d | 2218 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
a0d0e21e LW |
2219 | switch (SvTYPE(sv)) { |
2220 | case SVt_NULL: | |
2221 | case SVt_IV: | |
79072805 | 2222 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 2223 | break; |
a0d0e21e LW |
2224 | case SVt_RV: |
2225 | case SVt_PV: | |
2226 | case SVt_PVIV: | |
79072805 | 2227 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 2228 | break; |
827b7e14 | 2229 | |
a0d0e21e | 2230 | case SVt_PVGV: |
a0d0e21e LW |
2231 | case SVt_PVAV: |
2232 | case SVt_PVHV: | |
2233 | case SVt_PVCV: | |
2234 | case SVt_PVFM: | |
2235 | case SVt_PVIO: | |
411caa50 | 2236 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
53e06cf0 | 2237 | OP_NAME(PL_op)); |
79072805 | 2238 | } |
9d6ce603 | 2239 | SvNV_set(sv, num); |
a0d0e21e | 2240 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 2241 | SvTAINT(sv); |
79072805 LW |
2242 | } |
2243 | ||
954c1994 GS |
2244 | /* |
2245 | =for apidoc sv_setnv_mg | |
2246 | ||
2247 | Like C<sv_setnv>, but also handles 'set' magic. | |
2248 | ||
2249 | =cut | |
2250 | */ | |
2251 | ||
ef50df4b | 2252 | void |
65202027 | 2253 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
2254 | { |
2255 | sv_setnv(sv,num); | |
2256 | SvSETMAGIC(sv); | |
2257 | } | |
2258 | ||
645c22ef DM |
2259 | /* Print an "isn't numeric" warning, using a cleaned-up, |
2260 | * printable version of the offending string | |
2261 | */ | |
2262 | ||
76e3520e | 2263 | STATIC void |
cea2e8a9 | 2264 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 2265 | { |
94463019 JH |
2266 | SV *dsv; |
2267 | char tmpbuf[64]; | |
2268 | char *pv; | |
2269 | ||
2270 | if (DO_UTF8(sv)) { | |
2271 | dsv = sv_2mortal(newSVpv("", 0)); | |
2272 | pv = sv_uni_display(dsv, sv, 10, 0); | |
2273 | } else { | |
2274 | char *d = tmpbuf; | |
2275 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; | |
2276 | /* each *s can expand to 4 chars + "...\0", | |
2277 | i.e. need room for 8 chars */ | |
ecdeb87c | 2278 | |
94463019 JH |
2279 | char *s, *end; |
2280 | for (s = SvPVX(sv), end = s + SvCUR(sv); s < end && d < limit; s++) { | |
2281 | int ch = *s & 0xFF; | |
2282 | if (ch & 128 && !isPRINT_LC(ch)) { | |
2283 | *d++ = 'M'; | |
2284 | *d++ = '-'; | |
2285 | ch &= 127; | |
2286 | } | |
2287 | if (ch == '\n') { | |
2288 | *d++ = '\\'; | |
2289 | *d++ = 'n'; | |
2290 | } | |
2291 | else if (ch == '\r') { | |
2292 | *d++ = '\\'; | |
2293 | *d++ = 'r'; | |
2294 | } | |
2295 | else if (ch == '\f') { | |
2296 | *d++ = '\\'; | |
2297 | *d++ = 'f'; | |
2298 | } | |
2299 | else if (ch == '\\') { | |
2300 | *d++ = '\\'; | |
2301 | *d++ = '\\'; | |
2302 | } | |
2303 | else if (ch == '\0') { | |
2304 | *d++ = '\\'; | |
2305 | *d++ = '0'; | |
2306 | } | |
2307 | else if (isPRINT_LC(ch)) | |
2308 | *d++ = ch; | |
2309 | else { | |
2310 | *d++ = '^'; | |
2311 | *d++ = toCTRL(ch); | |
2312 | } | |
2313 | } | |
2314 | if (s < end) { | |
2315 | *d++ = '.'; | |
2316 | *d++ = '.'; | |
2317 | *d++ = '.'; | |
2318 | } | |
2319 | *d = '\0'; | |
2320 | pv = tmpbuf; | |
a0d0e21e | 2321 | } |
a0d0e21e | 2322 | |
533c011a | 2323 | if (PL_op) |
9014280d | 2324 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 JH |
2325 | "Argument \"%s\" isn't numeric in %s", pv, |
2326 | OP_DESC(PL_op)); | |
a0d0e21e | 2327 | else |
9014280d | 2328 | Perl_warner(aTHX_ packWARN(WARN_NUMERIC), |
94463019 | 2329 | "Argument \"%s\" isn't numeric", pv); |
a0d0e21e LW |
2330 | } |
2331 | ||
c2988b20 NC |
2332 | /* |
2333 | =for apidoc looks_like_number | |
2334 | ||
645c22ef DM |
2335 | Test if the content of an SV looks like a number (or is a number). |
2336 | C<Inf> and C<Infinity> are treated as numbers (so will not issue a | |
2337 | non-numeric warning), even if your atof() doesn't grok them. | |
c2988b20 NC |
2338 | |
2339 | =cut | |
2340 | */ | |
2341 | ||
2342 | I32 | |
2343 | Perl_looks_like_number(pTHX_ SV *sv) | |
2344 | { | |
2345 | register char *sbegin; | |
2346 | STRLEN len; | |
2347 | ||
2348 | if (SvPOK(sv)) { | |
2349 | sbegin = SvPVX(sv); | |
2350 | len = SvCUR(sv); | |
2351 | } | |
2352 | else if (SvPOKp(sv)) | |
2353 | sbegin = SvPV(sv, len); | |
2354 | else | |
e0ab1c0e | 2355 | return SvFLAGS(sv) & (SVf_NOK|SVp_NOK|SVf_IOK|SVp_IOK); |
c2988b20 NC |
2356 | return grok_number(sbegin, len, NULL); |
2357 | } | |
25da4f38 IZ |
2358 | |
2359 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
2360 | until proven guilty, assume that things are not that bad... */ | |
2361 | ||
645c22ef DM |
2362 | /* |
2363 | NV_PRESERVES_UV: | |
2364 | ||
2365 | As 64 bit platforms often have an NV that doesn't preserve all bits of | |
28e5dec8 JH |
2366 | an IV (an assumption perl has been based on to date) it becomes necessary |
2367 | to remove the assumption that the NV always carries enough precision to | |
2368 | recreate the IV whenever needed, and that the NV is the canonical form. | |
2369 | Instead, IV/UV and NV need to be given equal rights. So as to not lose | |
645c22ef | 2370 | precision as a side effect of conversion (which would lead to insanity |
28e5dec8 JH |
2371 | and the dragon(s) in t/op/numconvert.t getting very angry) the intent is |
2372 | 1) to distinguish between IV/UV/NV slots that have cached a valid | |
2373 | conversion where precision was lost and IV/UV/NV slots that have a | |
2374 | valid conversion which has lost no precision | |
645c22ef | 2375 | 2) to ensure that if a numeric conversion to one form is requested that |
28e5dec8 JH |
2376 | would lose precision, the precise conversion (or differently |
2377 | imprecise conversion) is also performed and cached, to prevent | |
2378 | requests for different numeric formats on the same SV causing | |
2379 | lossy conversion chains. (lossless conversion chains are perfectly | |
2380 | acceptable (still)) | |
2381 | ||
2382 | ||
2383 | flags are used: | |
2384 | SvIOKp is true if the IV slot contains a valid value | |
2385 | SvIOK is true only if the IV value is accurate (UV if SvIOK_UV true) | |
2386 | SvNOKp is true if the NV slot contains a valid value | |
2387 | SvNOK is true only if the NV value is accurate | |
2388 | ||
2389 | so | |
645c22ef | 2390 | while converting from PV to NV, check to see if converting that NV to an |
28e5dec8 JH |
2391 | IV(or UV) would lose accuracy over a direct conversion from PV to |
2392 | IV(or UV). If it would, cache both conversions, return NV, but mark | |
2393 | SV as IOK NOKp (ie not NOK). | |
2394 | ||
645c22ef | 2395 | While converting from PV to IV, check to see if converting that IV to an |
28e5dec8 JH |
2396 | NV would lose accuracy over a direct conversion from PV to NV. If it |
2397 | would, cache both conversions, flag similarly. | |
2398 | ||
2399 | Before, the SV value "3.2" could become NV=3.2 IV=3 NOK, IOK quite | |
2400 | correctly because if IV & NV were set NV *always* overruled. | |
645c22ef DM |
2401 | Now, "3.2" will become NV=3.2 IV=3 NOK, IOKp, because the flag's meaning |
2402 | changes - now IV and NV together means that the two are interchangeable: | |
28e5dec8 | 2403 | SvIVX == (IV) SvNVX && SvNVX == (NV) SvIVX; |
d460ef45 | 2404 | |
645c22ef DM |
2405 | The benefit of this is that operations such as pp_add know that if |
2406 | SvIOK is true for both left and right operands, then integer addition | |
2407 | can be used instead of floating point (for cases where the result won't | |
2408 | overflow). Before, floating point was always used, which could lead to | |
28e5dec8 JH |
2409 | loss of precision compared with integer addition. |
2410 | ||
2411 | * making IV and NV equal status should make maths accurate on 64 bit | |
2412 | platforms | |
2413 | * may speed up maths somewhat if pp_add and friends start to use | |
645c22ef | 2414 | integers when possible instead of fp. (Hopefully the overhead in |
28e5dec8 JH |
2415 | looking for SvIOK and checking for overflow will not outweigh the |
2416 | fp to integer speedup) | |
2417 | * will slow down integer operations (callers of SvIV) on "inaccurate" | |
2418 | values, as the change from SvIOK to SvIOKp will cause a call into | |
2419 | sv_2iv each time rather than a macro access direct to the IV slot | |
2420 | * should speed up number->string conversion on integers as IV is | |
645c22ef | 2421 | favoured when IV and NV are equally accurate |
28e5dec8 JH |
2422 | |
2423 | #################################################################### | |
645c22ef DM |
2424 | You had better be using SvIOK_notUV if you want an IV for arithmetic: |
2425 | SvIOK is true if (IV or UV), so you might be getting (IV)SvUV. | |
2426 | On the other hand, SvUOK is true iff UV. | |
28e5dec8 JH |
2427 | #################################################################### |
2428 | ||
645c22ef | 2429 | Your mileage will vary depending your CPU's relative fp to integer |
28e5dec8 JH |
2430 | performance ratio. |
2431 | */ | |
2432 | ||
2433 | #ifndef NV_PRESERVES_UV | |
645c22ef DM |
2434 | # define IS_NUMBER_UNDERFLOW_IV 1 |
2435 | # define IS_NUMBER_UNDERFLOW_UV 2 | |
2436 | # define IS_NUMBER_IV_AND_UV 2 | |
2437 | # define IS_NUMBER_OVERFLOW_IV 4 | |
2438 | # define IS_NUMBER_OVERFLOW_UV 5 | |
2439 | ||
2440 | /* sv_2iuv_non_preserve(): private routine for use by sv_2iv() and sv_2uv() */ | |
28e5dec8 JH |
2441 | |
2442 | /* For sv_2nv these three cases are "SvNOK and don't bother casting" */ | |
2443 | STATIC int | |
645c22ef | 2444 | S_sv_2iuv_non_preserve(pTHX_ register SV *sv, I32 numtype) |
28e5dec8 | 2445 | { |
1779d84d | 2446 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_2iuv_non '%s', IV=0x%"UVxf" NV=%"NVgf" inttype=%"UVXf"\n", SvPVX(sv), SvIVX(sv), SvNVX(sv), (UV)numtype)); |
28e5dec8 JH |
2447 | if (SvNVX(sv) < (NV)IV_MIN) { |
2448 | (void)SvIOKp_on(sv); | |
2449 | (void)SvNOK_on(sv); | |
45977657 | 2450 | SvIV_set(sv, IV_MIN); |
28e5dec8 JH |
2451 | return IS_NUMBER_UNDERFLOW_IV; |
2452 | } | |
2453 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2454 | (void)SvIOKp_on(sv); | |
2455 | (void)SvNOK_on(sv); | |
2456 | SvIsUV_on(sv); | |
607fa7f2 | 2457 | SvUV_set(sv, UV_MAX); |
28e5dec8 JH |
2458 | return IS_NUMBER_OVERFLOW_UV; |
2459 | } | |
c2988b20 NC |
2460 | (void)SvIOKp_on(sv); |
2461 | (void)SvNOK_on(sv); | |
2462 | /* Can't use strtol etc to convert this string. (See truth table in | |
2463 | sv_2iv */ | |
2464 | if (SvNVX(sv) <= (UV)IV_MAX) { | |
45977657 | 2465 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2466 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2467 | SvIOK_on(sv); /* Integer is precise. NOK, IOK */ | |
2468 | } else { | |
2469 | /* Integer is imprecise. NOK, IOKp */ | |
2470 | } | |
2471 | return SvNVX(sv) < 0 ? IS_NUMBER_UNDERFLOW_UV : IS_NUMBER_IV_AND_UV; | |
2472 | } | |
2473 | SvIsUV_on(sv); | |
607fa7f2 | 2474 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2475 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { |
2476 | if (SvUVX(sv) == UV_MAX) { | |
2477 | /* As we know that NVs don't preserve UVs, UV_MAX cannot | |
2478 | possibly be preserved by NV. Hence, it must be overflow. | |
2479 | NOK, IOKp */ | |
2480 | return IS_NUMBER_OVERFLOW_UV; | |
2481 | } | |
2482 | SvIOK_on(sv); /* Integer is precise. NOK, UOK */ | |
2483 | } else { | |
2484 | /* Integer is imprecise. NOK, IOKp */ | |
28e5dec8 | 2485 | } |
c2988b20 | 2486 | return IS_NUMBER_OVERFLOW_IV; |
28e5dec8 | 2487 | } |
645c22ef DM |
2488 | #endif /* !NV_PRESERVES_UV*/ |
2489 | ||
891f9566 YST |
2490 | /* sv_2iv() is now a macro using Perl_sv_2iv_flags(); |
2491 | * this function provided for binary compatibility only | |
2492 | */ | |
2493 | ||
2494 | IV | |
2495 | Perl_sv_2iv(pTHX_ register SV *sv) | |
2496 | { | |
2497 | return sv_2iv_flags(sv, SV_GMAGIC); | |
2498 | } | |
2499 | ||
645c22ef | 2500 | /* |
891f9566 | 2501 | =for apidoc sv_2iv_flags |
645c22ef | 2502 | |
891f9566 YST |
2503 | Return the integer value of an SV, doing any necessary string |
2504 | conversion. If flags includes SV_GMAGIC, does an mg_get() first. | |
2505 | Normally used via the C<SvIV(sv)> and C<SvIVx(sv)> macros. | |
645c22ef DM |
2506 | |
2507 | =cut | |
2508 | */ | |
28e5dec8 | 2509 | |
a0d0e21e | 2510 | IV |
891f9566 | 2511 | Perl_sv_2iv_flags(pTHX_ register SV *sv, I32 flags) |
79072805 LW |
2512 | { |
2513 | if (!sv) | |
2514 | return 0; | |
8990e307 | 2515 | if (SvGMAGICAL(sv)) { |
891f9566 YST |
2516 | if (flags & SV_GMAGIC) |
2517 | mg_get(sv); | |
463ee0b2 LW |
2518 | if (SvIOKp(sv)) |
2519 | return SvIVX(sv); | |
748a9306 | 2520 | if (SvNOKp(sv)) { |
25da4f38 | 2521 | return I_V(SvNVX(sv)); |
748a9306 | 2522 | } |
36477c24 | 2523 | if (SvPOKp(sv) && SvLEN(sv)) |
2524 | return asIV(sv); | |
3fe9a6f1 | 2525 | if (!SvROK(sv)) { |
d008e5eb | 2526 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2527 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
29489e7c | 2528 | report_uninit(sv); |
c6ee37c5 | 2529 | } |
36477c24 | 2530 | return 0; |
3fe9a6f1 | 2531 | } |
463ee0b2 | 2532 | } |
ed6116ce | 2533 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 2534 | if (SvROK(sv)) { |
a0d0e21e | 2535 | SV* tmpstr; |
1554e226 | 2536 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2537 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2538 | return SvIV(tmpstr); |
56431972 | 2539 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 2540 | } |
765f542d NC |
2541 | if (SvIsCOW(sv)) { |
2542 | sv_force_normal_flags(sv, 0); | |
47deb5e7 | 2543 | } |
0336b60e | 2544 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2545 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2546 | report_uninit(sv); |
ed6116ce LW |
2547 | return 0; |
2548 | } | |
79072805 | 2549 | } |
25da4f38 IZ |
2550 | if (SvIOKp(sv)) { |
2551 | if (SvIsUV(sv)) { | |
2552 | return (IV)(SvUVX(sv)); | |
2553 | } | |
2554 | else { | |
2555 | return SvIVX(sv); | |
2556 | } | |
463ee0b2 | 2557 | } |
748a9306 | 2558 | if (SvNOKp(sv)) { |
28e5dec8 JH |
2559 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2560 | * without also getting a cached IV/UV from it at the same time | |
2561 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2562 | * IV or UV at same time to avoid this. NWC */ | |
25da4f38 IZ |
2563 | |
2564 | if (SvTYPE(sv) == SVt_NV) | |
2565 | sv_upgrade(sv, SVt_PVNV); | |
2566 | ||
28e5dec8 JH |
2567 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ |
2568 | /* < not <= as for NV doesn't preserve UV, ((NV)IV_MAX+1) will almost | |
2569 | certainly cast into the IV range at IV_MAX, whereas the correct | |
2570 | answer is the UV IV_MAX +1. Hence < ensures that dodgy boundary | |
2571 | cases go to UV */ | |
2572 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 2573 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2574 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2575 | #ifndef NV_PRESERVES_UV | |
2576 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2577 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2578 | /* Don't flag it as "accurately an integer" if the number | |
2579 | came from a (by definition imprecise) NV operation, and | |
2580 | we're outside the range of NV integer precision */ | |
2581 | #endif | |
2582 | ) { | |
2583 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2584 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2585 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2586 | PTR2UV(sv), |
2587 | SvNVX(sv), | |
2588 | SvIVX(sv))); | |
2589 | ||
2590 | } else { | |
2591 | /* IV not precise. No need to convert from PV, as NV | |
2592 | conversion would already have cached IV if it detected | |
2593 | that PV->IV would be better than PV->NV->IV | |
2594 | flags already correct - don't set public IOK. */ | |
2595 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2596 | "0x%"UVxf" iv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2597 | PTR2UV(sv), |
2598 | SvNVX(sv), | |
2599 | SvIVX(sv))); | |
2600 | } | |
2601 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2602 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2603 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2604 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2605 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2606 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2607 | Hopefully for 2s complement IV_MIN is something like | |
2608 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2609 | } |
25da4f38 | 2610 | else { |
607fa7f2 | 2611 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2612 | if ( |
2613 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2614 | #ifndef NV_PRESERVES_UV | |
2615 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2616 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2617 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2618 | /* Don't flag it as "accurately an integer" if the number | |
2619 | came from a (by definition imprecise) NV operation, and | |
2620 | we're outside the range of NV integer precision */ | |
2621 | #endif | |
2622 | ) | |
2623 | SvIOK_on(sv); | |
25da4f38 IZ |
2624 | SvIsUV_on(sv); |
2625 | ret_iv_max: | |
1c846c1f | 2626 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 2627 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 2628 | PTR2UV(sv), |
57def98f JH |
2629 | SvUVX(sv), |
2630 | SvUVX(sv))); | |
25da4f38 IZ |
2631 | return (IV)SvUVX(sv); |
2632 | } | |
748a9306 LW |
2633 | } |
2634 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2635 | UV value; |
2636 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2637 | /* We want to avoid a possible problem when we cache an IV which |
2638 | may be later translated to an NV, and the resulting NV is not | |
c2988b20 NC |
2639 | the same as the direct translation of the initial string |
2640 | (eg 123.456 can shortcut to the IV 123 with atol(), but we must | |
2641 | be careful to ensure that the value with the .456 is around if the | |
2642 | NV value is requested in the future). | |
1c846c1f | 2643 | |
25da4f38 IZ |
2644 | This means that if we cache such an IV, we need to cache the |
2645 | NV as well. Moreover, we trade speed for space, and do not | |
28e5dec8 | 2646 | cache the NV if we are sure it's not needed. |
25da4f38 | 2647 | */ |
16b7a9a4 | 2648 | |
c2988b20 NC |
2649 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2650 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2651 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2652 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 JH |
2653 | if (SvTYPE(sv) < SVt_PVIV) |
2654 | sv_upgrade(sv, SVt_PVIV); | |
f7bbb42a | 2655 | (void)SvIOK_on(sv); |
c2988b20 NC |
2656 | } else if (SvTYPE(sv) < SVt_PVNV) |
2657 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 | 2658 | |
c2988b20 NC |
2659 | /* If NV preserves UV then we only use the UV value if we know that |
2660 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2661 | then the value returned may have more precision than atof() will | |
2662 | return, even though value isn't perfectly accurate. */ | |
2663 | if ((numtype & (IS_NUMBER_IN_UV | |
2664 | #ifdef NV_PRESERVES_UV | |
2665 | | IS_NUMBER_NOT_INT | |
2666 | #endif | |
2667 | )) == IS_NUMBER_IN_UV) { | |
2668 | /* This won't turn off the public IOK flag if it was set above */ | |
2669 | (void)SvIOKp_on(sv); | |
2670 | ||
2671 | if (!(numtype & IS_NUMBER_NEG)) { | |
2672 | /* positive */; | |
2673 | if (value <= (UV)IV_MAX) { | |
45977657 | 2674 | SvIV_set(sv, (IV)value); |
c2988b20 | 2675 | } else { |
607fa7f2 | 2676 | SvUV_set(sv, value); |
c2988b20 NC |
2677 | SvIsUV_on(sv); |
2678 | } | |
2679 | } else { | |
2680 | /* 2s complement assumption */ | |
2681 | if (value <= (UV)IV_MIN) { | |
45977657 | 2682 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2683 | } else { |
2684 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2685 | I'm assuming it will be rare. */ |
c2988b20 NC |
2686 | if (SvTYPE(sv) < SVt_PVNV) |
2687 | sv_upgrade(sv, SVt_PVNV); | |
2688 | SvNOK_on(sv); | |
2689 | SvIOK_off(sv); | |
2690 | SvIOKp_on(sv); | |
9d6ce603 | 2691 | SvNV_set(sv, -(NV)value); |
45977657 | 2692 | SvIV_set(sv, IV_MIN); |
c2988b20 NC |
2693 | } |
2694 | } | |
2695 | } | |
2696 | /* For !NV_PRESERVES_UV and IS_NUMBER_IN_UV and IS_NUMBER_NOT_INT we | |
2697 | will be in the previous block to set the IV slot, and the next | |
2698 | block to set the NV slot. So no else here. */ | |
2699 | ||
2700 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2701 | != IS_NUMBER_IN_UV) { | |
2702 | /* It wasn't an (integer that doesn't overflow the UV). */ | |
9d6ce603 | 2703 | SvNV_set(sv, Atof(SvPVX(sv))); |
28e5dec8 | 2704 | |
c2988b20 NC |
2705 | if (! numtype && ckWARN(WARN_NUMERIC)) |
2706 | not_a_number(sv); | |
28e5dec8 | 2707 | |
65202027 | 2708 | #if defined(USE_LONG_DOUBLE) |
c2988b20 NC |
2709 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%" PERL_PRIgldbl ")\n", |
2710 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 2711 | #else |
1779d84d | 2712 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"NVgf")\n", |
c2988b20 | 2713 | PTR2UV(sv), SvNVX(sv))); |
65202027 | 2714 | #endif |
28e5dec8 JH |
2715 | |
2716 | ||
2717 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
2718 | (void)SvIOKp_on(sv); |
2719 | (void)SvNOK_on(sv); | |
2720 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 2721 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2722 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
2723 | SvIOK_on(sv); | |
28e5dec8 | 2724 | } else { |
c2988b20 NC |
2725 | /* Integer is imprecise. NOK, IOKp */ |
2726 | } | |
2727 | /* UV will not work better than IV */ | |
2728 | } else { | |
2729 | if (SvNVX(sv) > (NV)UV_MAX) { | |
2730 | SvIsUV_on(sv); | |
2731 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
607fa7f2 | 2732 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
2733 | SvIsUV_on(sv); |
2734 | } else { | |
607fa7f2 | 2735 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
2736 | /* 0xFFFFFFFFFFFFFFFF not an issue in here */ |
2737 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
2738 | SvIOK_on(sv); | |
28e5dec8 JH |
2739 | SvIsUV_on(sv); |
2740 | } else { | |
c2988b20 NC |
2741 | /* Integer is imprecise. NOK, IOKp, is UV */ |
2742 | SvIsUV_on(sv); | |
28e5dec8 | 2743 | } |
28e5dec8 | 2744 | } |
c2988b20 NC |
2745 | goto ret_iv_max; |
2746 | } | |
28e5dec8 | 2747 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
2748 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
2749 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
2750 | /* The IV slot will have been set from value returned by | |
2751 | grok_number above. The NV slot has just been set using | |
2752 | Atof. */ | |
560b0c46 | 2753 | SvNOK_on(sv); |
c2988b20 NC |
2754 | assert (SvIOKp(sv)); |
2755 | } else { | |
2756 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2757 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
2758 | /* Small enough to preserve all bits. */ | |
2759 | (void)SvIOKp_on(sv); | |
2760 | SvNOK_on(sv); | |
45977657 | 2761 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
2762 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
2763 | SvIOK_on(sv); | |
2764 | /* Assumption: first non-preserved integer is < IV_MAX, | |
2765 | this NV is in the preserved range, therefore: */ | |
2766 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
2767 | < (UV)IV_MAX)) { | |
32fdb065 | 2768 | 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 |
2769 | } |
2770 | } else { | |
2771 | /* IN_UV NOT_INT | |
2772 | 0 0 already failed to read UV. | |
2773 | 0 1 already failed to read UV. | |
2774 | 1 0 you won't get here in this case. IV/UV | |
2775 | slot set, public IOK, Atof() unneeded. | |
2776 | 1 1 already read UV. | |
2777 | so there's no point in sv_2iuv_non_preserve() attempting | |
2778 | to use atol, strtol, strtoul etc. */ | |
2779 | if (sv_2iuv_non_preserve (sv, numtype) | |
2780 | >= IS_NUMBER_OVERFLOW_IV) | |
2781 | goto ret_iv_max; | |
2782 | } | |
2783 | } | |
28e5dec8 | 2784 | #endif /* NV_PRESERVES_UV */ |
25da4f38 | 2785 | } |
28e5dec8 | 2786 | } else { |
599cee73 | 2787 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
29489e7c | 2788 | report_uninit(sv); |
25da4f38 IZ |
2789 | if (SvTYPE(sv) < SVt_IV) |
2790 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2791 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 2792 | return 0; |
79072805 | 2793 | } |
1d7c1841 GS |
2794 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
2795 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 2796 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
2797 | } |
2798 | ||
891f9566 YST |
2799 | /* sv_2uv() is now a macro using Perl_sv_2uv_flags(); |
2800 | * this function provided for binary compatibility only | |
2801 | */ | |
2802 | ||
2803 | UV | |
2804 | Perl_sv_2uv(pTHX_ register SV *sv) | |
2805 | { | |
2806 | return sv_2uv_flags(sv, SV_GMAGIC); | |
2807 | } | |
2808 | ||
645c22ef | 2809 | /* |
891f9566 | 2810 | =for apidoc sv_2uv_flags |
645c22ef DM |
2811 | |
2812 | Return the unsigned integer value of an SV, doing any necessary string | |
891f9566 YST |
2813 | conversion. If flags includes SV_GMAGIC, does an mg_get() first. |
2814 | Normally used via the C<SvUV(sv)> and C<SvUVx(sv)> macros. | |
645c22ef DM |
2815 | |
2816 | =cut | |
2817 | */ | |
2818 | ||
ff68c719 | 2819 | UV |
891f9566 | 2820 | Perl_sv_2uv_flags(pTHX_ register SV *sv, I32 flags) |
ff68c719 | 2821 | { |
2822 | if (!sv) | |
2823 | return 0; | |
2824 | if (SvGMAGICAL(sv)) { | |
891f9566 YST |
2825 | if (flags & SV_GMAGIC) |
2826 | mg_get(sv); | |
ff68c719 | 2827 | if (SvIOKp(sv)) |
2828 | return SvUVX(sv); | |
2829 | if (SvNOKp(sv)) | |
2830 | return U_V(SvNVX(sv)); | |
36477c24 | 2831 | if (SvPOKp(sv) && SvLEN(sv)) |
2832 | return asUV(sv); | |
3fe9a6f1 | 2833 | if (!SvROK(sv)) { |
d008e5eb | 2834 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 2835 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
29489e7c | 2836 | report_uninit(sv); |
c6ee37c5 | 2837 | } |
36477c24 | 2838 | return 0; |
3fe9a6f1 | 2839 | } |
ff68c719 | 2840 | } |
2841 | if (SvTHINKFIRST(sv)) { | |
2842 | if (SvROK(sv)) { | |
ff68c719 | 2843 | SV* tmpstr; |
1554e226 | 2844 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 2845 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 2846 | return SvUV(tmpstr); |
56431972 | 2847 | return PTR2UV(SvRV(sv)); |
ff68c719 | 2848 | } |
765f542d NC |
2849 | if (SvIsCOW(sv)) { |
2850 | sv_force_normal_flags(sv, 0); | |
8a818333 | 2851 | } |
0336b60e | 2852 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 2853 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 2854 | report_uninit(sv); |
ff68c719 | 2855 | return 0; |
2856 | } | |
2857 | } | |
25da4f38 IZ |
2858 | if (SvIOKp(sv)) { |
2859 | if (SvIsUV(sv)) { | |
2860 | return SvUVX(sv); | |
2861 | } | |
2862 | else { | |
2863 | return (UV)SvIVX(sv); | |
2864 | } | |
ff68c719 | 2865 | } |
2866 | if (SvNOKp(sv)) { | |
28e5dec8 JH |
2867 | /* erm. not sure. *should* never get NOKp (without NOK) from sv_2nv |
2868 | * without also getting a cached IV/UV from it at the same time | |
2869 | * (ie PV->NV conversion should detect loss of accuracy and cache | |
2870 | * IV or UV at same time to avoid this. */ | |
2871 | /* IV-over-UV optimisation - choose to cache IV if possible */ | |
2872 | ||
25da4f38 IZ |
2873 | if (SvTYPE(sv) == SVt_NV) |
2874 | sv_upgrade(sv, SVt_PVNV); | |
28e5dec8 JH |
2875 | |
2876 | (void)SvIOKp_on(sv); /* Must do this first, to clear any SvOOK */ | |
2877 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 2878 | SvIV_set(sv, I_V(SvNVX(sv))); |
28e5dec8 JH |
2879 | if (SvNVX(sv) == (NV) SvIVX(sv) |
2880 | #ifndef NV_PRESERVES_UV | |
2881 | && (((UV)1 << NV_PRESERVES_UV_BITS) > | |
2882 | (UV)(SvIVX(sv) > 0 ? SvIVX(sv) : -SvIVX(sv))) | |
2883 | /* Don't flag it as "accurately an integer" if the number | |
2884 | came from a (by definition imprecise) NV operation, and | |
2885 | we're outside the range of NV integer precision */ | |
2886 | #endif | |
2887 | ) { | |
2888 | SvIOK_on(sv); /* Can this go wrong with rounding? NWC */ | |
2889 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2890 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (precise)\n", |
28e5dec8 JH |
2891 | PTR2UV(sv), |
2892 | SvNVX(sv), | |
2893 | SvIVX(sv))); | |
2894 | ||
2895 | } else { | |
2896 | /* IV not precise. No need to convert from PV, as NV | |
2897 | conversion would already have cached IV if it detected | |
2898 | that PV->IV would be better than PV->NV->IV | |
2899 | flags already correct - don't set public IOK. */ | |
2900 | DEBUG_c(PerlIO_printf(Perl_debug_log, | |
7234c960 | 2901 | "0x%"UVxf" uv(%"NVgf" => %"IVdf") (imprecise)\n", |
28e5dec8 JH |
2902 | PTR2UV(sv), |
2903 | SvNVX(sv), | |
2904 | SvIVX(sv))); | |
2905 | } | |
2906 | /* Can the above go wrong if SvIVX == IV_MIN and SvNVX < IV_MIN, | |
2907 | but the cast (NV)IV_MIN rounds to a the value less (more | |
2908 | negative) than IV_MIN which happens to be equal to SvNVX ?? | |
2909 | Analogous to 0xFFFFFFFFFFFFFFFF rounding up to NV (2**64) and | |
2910 | NV rounding back to 0xFFFFFFFFFFFFFFFF, so UVX == UV(NVX) and | |
2911 | (NV)UVX == NVX are both true, but the values differ. :-( | |
2912 | Hopefully for 2s complement IV_MIN is something like | |
2913 | 0x8000000000000000 which will be exact. NWC */ | |
d460ef45 | 2914 | } |
28e5dec8 | 2915 | else { |
607fa7f2 | 2916 | SvUV_set(sv, U_V(SvNVX(sv))); |
28e5dec8 JH |
2917 | if ( |
2918 | (SvNVX(sv) == (NV) SvUVX(sv)) | |
2919 | #ifndef NV_PRESERVES_UV | |
2920 | /* Make sure it's not 0xFFFFFFFFFFFFFFFF */ | |
2921 | /*&& (SvUVX(sv) != UV_MAX) irrelevant with code below */ | |
2922 | && (((UV)1 << NV_PRESERVES_UV_BITS) > SvUVX(sv)) | |
2923 | /* Don't flag it as "accurately an integer" if the number | |
2924 | came from a (by definition imprecise) NV operation, and | |
2925 | we're outside the range of NV integer precision */ | |
2926 | #endif | |
2927 | ) | |
2928 | SvIOK_on(sv); | |
2929 | SvIsUV_on(sv); | |
1c846c1f | 2930 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
28e5dec8 | 2931 | "0x%"UVxf" 2uv(%"UVuf" => %"IVdf") (as unsigned)\n", |
57def98f | 2932 | PTR2UV(sv), |
28e5dec8 JH |
2933 | SvUVX(sv), |
2934 | SvUVX(sv))); | |
25da4f38 | 2935 | } |
ff68c719 | 2936 | } |
2937 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
c2988b20 NC |
2938 | UV value; |
2939 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
25da4f38 IZ |
2940 | |
2941 | /* We want to avoid a possible problem when we cache a UV which | |
2942 | may be later translated to an NV, and the resulting NV is not | |
2943 | the translation of the initial data. | |
1c846c1f | 2944 | |
25da4f38 IZ |
2945 | This means that if we cache such a UV, we need to cache the |
2946 | NV as well. Moreover, we trade speed for space, and do not | |
2947 | cache the NV if not needed. | |
2948 | */ | |
16b7a9a4 | 2949 | |
c2988b20 NC |
2950 | /* SVt_PVNV is one higher than SVt_PVIV, hence this order */ |
2951 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
2952 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 2953 | /* It's definitely an integer, only upgrade to PVIV */ |
28e5dec8 | 2954 | if (SvTYPE(sv) < SVt_PVIV) |
f7bbb42a JH |
2955 | sv_upgrade(sv, SVt_PVIV); |
2956 | (void)SvIOK_on(sv); | |
c2988b20 NC |
2957 | } else if (SvTYPE(sv) < SVt_PVNV) |
2958 | sv_upgrade(sv, SVt_PVNV); | |
d460ef45 | 2959 | |
c2988b20 NC |
2960 | /* If NV preserves UV then we only use the UV value if we know that |
2961 | we aren't going to call atof() below. If NVs don't preserve UVs | |
2962 | then the value returned may have more precision than atof() will | |
2963 | return, even though it isn't accurate. */ | |
2964 | if ((numtype & (IS_NUMBER_IN_UV | |
2965 | #ifdef NV_PRESERVES_UV | |
2966 | | IS_NUMBER_NOT_INT | |
2967 | #endif | |
2968 | )) == IS_NUMBER_IN_UV) { | |
2969 | /* This won't turn off the public IOK flag if it was set above */ | |
2970 | (void)SvIOKp_on(sv); | |
2971 | ||
2972 | if (!(numtype & IS_NUMBER_NEG)) { | |
2973 | /* positive */; | |
2974 | if (value <= (UV)IV_MAX) { | |
45977657 | 2975 | SvIV_set(sv, (IV)value); |
28e5dec8 JH |
2976 | } else { |
2977 | /* it didn't overflow, and it was positive. */ | |
607fa7f2 | 2978 | SvUV_set(sv, value); |
28e5dec8 JH |
2979 | SvIsUV_on(sv); |
2980 | } | |
c2988b20 NC |
2981 | } else { |
2982 | /* 2s complement assumption */ | |
2983 | if (value <= (UV)IV_MIN) { | |
45977657 | 2984 | SvIV_set(sv, -(IV)value); |
c2988b20 NC |
2985 | } else { |
2986 | /* Too negative for an IV. This is a double upgrade, but | |
d1be9408 | 2987 | I'm assuming it will be rare. */ |
c2988b20 NC |
2988 | if (SvTYPE(sv) < SVt_PVNV) |
2989 | sv_upgrade(sv, SVt_PVNV); | |
2990 | SvNOK_on(sv); | |
2991 | SvIOK_off(sv); | |
2992 | SvIOKp_on(sv); | |
9d6ce603 | 2993 | SvNV_set(sv, -(NV)value); |
45977657 | 2994 | SvIV_set(sv, IV_MIN); |
c2988b20 NC |
2995 | } |
2996 | } | |
2997 | } | |
2998 | ||
2999 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
3000 | != IS_NUMBER_IN_UV) { | |
3001 | /* It wasn't an integer, or it overflowed the UV. */ | |
9d6ce603 | 3002 | SvNV_set(sv, Atof(SvPVX(sv))); |
28e5dec8 | 3003 | |
c2988b20 | 3004 | if (! numtype && ckWARN(WARN_NUMERIC)) |
28e5dec8 JH |
3005 | not_a_number(sv); |
3006 | ||
3007 | #if defined(USE_LONG_DOUBLE) | |
c2988b20 NC |
3008 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%" PERL_PRIgldbl ")\n", |
3009 | PTR2UV(sv), SvNVX(sv))); | |
28e5dec8 | 3010 | #else |
1779d84d | 3011 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"NVgf")\n", |
c2988b20 | 3012 | PTR2UV(sv), SvNVX(sv))); |
28e5dec8 JH |
3013 | #endif |
3014 | ||
3015 | #ifdef NV_PRESERVES_UV | |
c2988b20 NC |
3016 | (void)SvIOKp_on(sv); |
3017 | (void)SvNOK_on(sv); | |
3018 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
45977657 | 3019 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
3020 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) { |
3021 | SvIOK_on(sv); | |
3022 | } else { | |
3023 | /* Integer is imprecise. NOK, IOKp */ | |
3024 | } | |
3025 | /* UV will not work better than IV */ | |
3026 | } else { | |
3027 | if (SvNVX(sv) > (NV)UV_MAX) { | |
3028 | SvIsUV_on(sv); | |
3029 | /* Integer is inaccurate. NOK, IOKp, is UV */ | |
607fa7f2 | 3030 | SvUV_set(sv, UV_MAX); |
c2988b20 NC |
3031 | SvIsUV_on(sv); |
3032 | } else { | |
607fa7f2 | 3033 | SvUV_set(sv, U_V(SvNVX(sv))); |
c2988b20 NC |
3034 | /* 0xFFFFFFFFFFFFFFFF not an issue in here, NVs |
3035 | NV preservse UV so can do correct comparison. */ | |
3036 | if ((NV)(SvUVX(sv)) == SvNVX(sv)) { | |
3037 | SvIOK_on(sv); | |
3038 | SvIsUV_on(sv); | |
3039 | } else { | |
3040 | /* Integer is imprecise. NOK, IOKp, is UV */ | |
3041 | SvIsUV_on(sv); | |
3042 | } | |
3043 | } | |
3044 | } | |
28e5dec8 | 3045 | #else /* NV_PRESERVES_UV */ |
c2988b20 NC |
3046 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
3047 | == (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) { | |
3048 | /* The UV slot will have been set from value returned by | |
3049 | grok_number above. The NV slot has just been set using | |
3050 | Atof. */ | |
560b0c46 | 3051 | SvNOK_on(sv); |
c2988b20 NC |
3052 | assert (SvIOKp(sv)); |
3053 | } else { | |
3054 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
3055 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { | |
3056 | /* Small enough to preserve all bits. */ | |
3057 | (void)SvIOKp_on(sv); | |
3058 | SvNOK_on(sv); | |
45977657 | 3059 | SvIV_set(sv, I_V(SvNVX(sv))); |
c2988b20 NC |
3060 | if ((NV)(SvIVX(sv)) == SvNVX(sv)) |
3061 | SvIOK_on(sv); | |
3062 | /* Assumption: first non-preserved integer is < IV_MAX, | |
3063 | this NV is in the preserved range, therefore: */ | |
3064 | if (!(U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv)) | |
3065 | < (UV)IV_MAX)) { | |
32fdb065 | 3066 | 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 |
3067 | } |
3068 | } else | |
3069 | sv_2iuv_non_preserve (sv, numtype); | |
3070 | } | |
28e5dec8 | 3071 | #endif /* NV_PRESERVES_UV */ |
f7bbb42a | 3072 | } |
ff68c719 | 3073 | } |
3074 | else { | |
d008e5eb | 3075 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 3076 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
29489e7c | 3077 | report_uninit(sv); |
c6ee37c5 | 3078 | } |
25da4f38 IZ |
3079 | if (SvTYPE(sv) < SVt_IV) |
3080 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3081 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 3082 | return 0; |
3083 | } | |
25da4f38 | 3084 | |
1d7c1841 GS |
3085 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
3086 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 3087 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 3088 | } |
3089 | ||
645c22ef DM |
3090 | /* |
3091 | =for apidoc sv_2nv | |
3092 | ||
3093 | Return the num value of an SV, doing any necessary string or integer | |
3094 | conversion, magic etc. Normally used via the C<SvNV(sv)> and C<SvNVx(sv)> | |
3095 | macros. | |
3096 | ||
3097 | =cut | |
3098 | */ | |
3099 | ||
65202027 | 3100 | NV |
864dbfa3 | 3101 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
3102 | { |
3103 | if (!sv) | |
3104 | return 0.0; | |
8990e307 | 3105 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
3106 | mg_get(sv); |
3107 | if (SvNOKp(sv)) | |
3108 | return SvNVX(sv); | |
a0d0e21e | 3109 | if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
3110 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && |
3111 | !grok_number(SvPVX(sv), SvCUR(sv), NULL)) | |
a0d0e21e | 3112 | not_a_number(sv); |
097ee67d | 3113 | return Atof(SvPVX(sv)); |
a0d0e21e | 3114 | } |
25da4f38 | 3115 | if (SvIOKp(sv)) { |
1c846c1f | 3116 | if (SvIsUV(sv)) |
65202027 | 3117 | return (NV)SvUVX(sv); |
25da4f38 | 3118 | else |
65202027 | 3119 | return (NV)SvIVX(sv); |
25da4f38 | 3120 | } |
16d20bd9 | 3121 | if (!SvROK(sv)) { |
d008e5eb | 3122 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 3123 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
29489e7c | 3124 | report_uninit(sv); |
c6ee37c5 | 3125 | } |
16d20bd9 AD |
3126 | return 0; |
3127 | } | |
463ee0b2 | 3128 | } |
ed6116ce | 3129 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 3130 | if (SvROK(sv)) { |
a0d0e21e | 3131 | SV* tmpstr; |
1554e226 | 3132 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer)) && |
b4b9a328 | 3133 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) |
9e7bc3e8 | 3134 | return SvNV(tmpstr); |
56431972 | 3135 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 3136 | } |
765f542d NC |
3137 | if (SvIsCOW(sv)) { |
3138 | sv_force_normal_flags(sv, 0); | |
8a818333 | 3139 | } |
0336b60e | 3140 | if (SvREADONLY(sv) && !SvOK(sv)) { |
599cee73 | 3141 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 3142 | report_uninit(sv); |
ed6116ce LW |
3143 | return 0.0; |
3144 | } | |
79072805 LW |
3145 | } |
3146 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
3147 | if (SvTYPE(sv) == SVt_IV) |
3148 | sv_upgrade(sv, SVt_PVNV); | |
3149 | else | |
3150 | sv_upgrade(sv, SVt_NV); | |
906f284f | 3151 | #ifdef USE_LONG_DOUBLE |
097ee67d | 3152 | DEBUG_c({ |
f93f4e46 | 3153 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
3154 | PerlIO_printf(Perl_debug_log, |
3155 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
3156 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
3157 | RESTORE_NUMERIC_LOCAL(); |
3158 | }); | |
65202027 | 3159 | #else |
572bbb43 | 3160 | DEBUG_c({ |
f93f4e46 | 3161 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 3162 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%"NVgf")\n", |
1d7c1841 | 3163 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
3164 | RESTORE_NUMERIC_LOCAL(); |
3165 | }); | |
572bbb43 | 3166 | #endif |
79072805 LW |
3167 | } |
3168 | else if (SvTYPE(sv) < SVt_PVNV) | |
3169 | sv_upgrade(sv, SVt_PVNV); | |
59d8ce62 NC |
3170 | if (SvNOKp(sv)) { |
3171 | return SvNVX(sv); | |
61604483 | 3172 | } |
59d8ce62 | 3173 | if (SvIOKp(sv)) { |
9d6ce603 | 3174 | SvNV_set(sv, SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv)); |
28e5dec8 JH |
3175 | #ifdef NV_PRESERVES_UV |
3176 | SvNOK_on(sv); | |
3177 | #else | |
3178 | /* Only set the public NV OK flag if this NV preserves the IV */ | |
3179 | /* Check it's not 0xFFFFFFFFFFFFFFFF */ | |
3180 | if (SvIsUV(sv) ? ((SvUVX(sv) != UV_MAX)&&(SvUVX(sv) == U_V(SvNVX(sv)))) | |
3181 | : (SvIVX(sv) == I_V(SvNVX(sv)))) | |
3182 | SvNOK_on(sv); | |
3183 | else | |
3184 | SvNOKp_on(sv); | |
3185 | #endif | |
93a17b20 | 3186 | } |
748a9306 | 3187 | else if (SvPOKp(sv) && SvLEN(sv)) { |
c2988b20 NC |
3188 | UV value; |
3189 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
3190 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !numtype) | |
a0d0e21e | 3191 | not_a_number(sv); |
28e5dec8 | 3192 | #ifdef NV_PRESERVES_UV |
c2988b20 NC |
3193 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
3194 | == IS_NUMBER_IN_UV) { | |
5e045b90 | 3195 | /* It's definitely an integer */ |
9d6ce603 | 3196 | SvNV_set(sv, (numtype & IS_NUMBER_NEG) ? -(NV)value : (NV)value); |
c2988b20 | 3197 | } else |
9d6ce603 | 3198 | SvNV_set(sv, Atof(SvPVX(sv))); |
28e5dec8 JH |
3199 | SvNOK_on(sv); |
3200 | #else | |
9d6ce603 | 3201 | SvNV_set(sv, Atof(SvPVX(sv))); |
28e5dec8 JH |
3202 | /* Only set the public NV OK flag if this NV preserves the value in |
3203 | the PV at least as well as an IV/UV would. | |
3204 | Not sure how to do this 100% reliably. */ | |
3205 | /* if that shift count is out of range then Configure's test is | |
3206 | wonky. We shouldn't be in here with NV_PRESERVES_UV_BITS == | |
3207 | UV_BITS */ | |
3208 | if (((UV)1 << NV_PRESERVES_UV_BITS) > | |
c2988b20 | 3209 | U_V(SvNVX(sv) > 0 ? SvNVX(sv) : -SvNVX(sv))) { |
28e5dec8 | 3210 | SvNOK_on(sv); /* Definitely small enough to preserve all bits */ |
c2988b20 NC |
3211 | } else if (!(numtype & IS_NUMBER_IN_UV)) { |
3212 | /* Can't use strtol etc to convert this string, so don't try. | |
3213 | sv_2iv and sv_2uv will use the NV to convert, not the PV. */ | |
3214 | SvNOK_on(sv); | |
3215 | } else { | |
3216 | /* value has been set. It may not be precise. */ | |
3217 | if ((numtype & IS_NUMBER_NEG) && (value > (UV)IV_MIN)) { | |
3218 | /* 2s complement assumption for (UV)IV_MIN */ | |
3219 | SvNOK_on(sv); /* Integer is too negative. */ | |
3220 | } else { | |
3221 | SvNOKp_on(sv); | |
3222 | SvIOKp_on(sv); | |
6fa402ec | 3223 | |
c2988b20 | 3224 | if (numtype & IS_NUMBER_NEG) { |
45977657 | 3225 | SvIV_set(sv, -(IV)value); |
c2988b20 | 3226 | } else if (value <= (UV)IV_MAX) { |
45977657 | 3227 | SvIV_set(sv, (IV)value); |
c2988b20 | 3228 | } else { |
607fa7f2 | 3229 | SvUV_set(sv, value); |
c2988b20 NC |
3230 | SvIsUV_on(sv); |
3231 | } | |
3232 | ||
3233 | if (numtype & IS_NUMBER_NOT_INT) { | |
3234 | /* I believe that even if the original PV had decimals, | |
3235 | they are lost beyond the limit of the FP precision. | |
3236 | However, neither is canonical, so both only get p | |
3237 | flags. NWC, 2000/11/25 */ | |
3238 | /* Both already have p flags, so do nothing */ | |
3239 | } else { | |
3240 | NV nv = SvNVX(sv); | |
3241 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) { | |
3242 | if (SvIVX(sv) == I_V(nv)) { | |
3243 | SvNOK_on(sv); | |
3244 | SvIOK_on(sv); | |
3245 | } else { | |
3246 | SvIOK_on(sv); | |
3247 | /* It had no "." so it must be integer. */ | |
3248 | } | |
3249 | } else { | |
3250 | /* between IV_MAX and NV(UV_MAX). | |
3251 | Could be slightly > UV_MAX */ | |
6fa402ec | 3252 | |
c2988b20 NC |
3253 | if (numtype & IS_NUMBER_NOT_INT) { |
3254 | /* UV and NV both imprecise. */ | |
3255 | } else { | |
3256 | UV nv_as_uv = U_V(nv); | |
3257 | ||
3258 | if (value == nv_as_uv && SvUVX(sv) != UV_MAX) { | |
3259 | SvNOK_on(sv); | |
3260 | SvIOK_on(sv); | |
3261 | } else { | |
3262 | SvIOK_on(sv); | |
3263 | } | |
3264 | } | |
3265 | } | |
3266 | } | |
3267 | } | |
3268 | } | |
28e5dec8 | 3269 | #endif /* NV_PRESERVES_UV */ |
93a17b20 | 3270 | } |
79072805 | 3271 | else { |
599cee73 | 3272 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
29489e7c | 3273 | report_uninit(sv); |
25da4f38 IZ |
3274 | if (SvTYPE(sv) < SVt_NV) |
3275 | /* Typically the caller expects that sv_any is not NULL now. */ | |
28e5dec8 JH |
3276 | /* XXX Ilya implies that this is a bug in callers that assume this |
3277 | and ideally should be fixed. */ | |
25da4f38 | 3278 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 3279 | return 0.0; |
79072805 | 3280 | } |
572bbb43 | 3281 | #if defined(USE_LONG_DOUBLE) |
097ee67d | 3282 | DEBUG_c({ |
f93f4e46 | 3283 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1d7c1841 GS |
3284 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
3285 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
3286 | RESTORE_NUMERIC_LOCAL(); |
3287 | }); | |
65202027 | 3288 | #else |
572bbb43 | 3289 | DEBUG_c({ |
f93f4e46 | 3290 | STORE_NUMERIC_LOCAL_SET_STANDARD(); |
1779d84d | 3291 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%"NVgf")\n", |
1d7c1841 | 3292 | PTR2UV(sv), SvNVX(sv)); |
097ee67d JH |
3293 | RESTORE_NUMERIC_LOCAL(); |
3294 | }); | |
572bbb43 | 3295 | #endif |
463ee0b2 | 3296 | return SvNVX(sv); |
79072805 LW |
3297 | } |
3298 | ||
645c22ef DM |
3299 | /* asIV(): extract an integer from the string value of an SV. |
3300 | * Caller must validate PVX */ | |
3301 | ||
76e3520e | 3302 | STATIC IV |
cea2e8a9 | 3303 | S_asIV(pTHX_ SV *sv) |
36477c24 | 3304 | { |
c2988b20 NC |
3305 | UV value; |
3306 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
3307 | ||
3308 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) | |
3309 | == IS_NUMBER_IN_UV) { | |
645c22ef | 3310 | /* It's definitely an integer */ |
c2988b20 NC |
3311 | if (numtype & IS_NUMBER_NEG) { |
3312 | if (value < (UV)IV_MIN) | |
3313 | return -(IV)value; | |
3314 | } else { | |
3315 | if (value < (UV)IV_MAX) | |
3316 | return (IV)value; | |
3317 | } | |
3318 | } | |
d008e5eb | 3319 | if (!numtype) { |
d008e5eb GS |
3320 | if (ckWARN(WARN_NUMERIC)) |
3321 | not_a_number(sv); | |
3322 | } | |
c2988b20 | 3323 | return I_V(Atof(SvPVX(sv))); |
36477c24 | 3324 | } |
3325 | ||
645c22ef DM |
3326 | /* asUV(): extract an unsigned integer from the string value of an SV |
3327 | * Caller must validate PVX */ | |
3328 | ||
76e3520e | 3329 | STATIC UV |
cea2e8a9 | 3330 | S_asUV(pTHX_ SV *sv) |
36477c24 | 3331 | { |
c2988b20 NC |
3332 | UV value; |
3333 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), &value); | |
36477c24 | 3334 | |
c2988b20 NC |
3335 | if ((numtype & (IS_NUMBER_IN_UV | IS_NUMBER_NOT_INT)) |
3336 | == IS_NUMBER_IN_UV) { | |
645c22ef | 3337 | /* It's definitely an integer */ |
6fa402ec | 3338 | if (!(numtype & IS_NUMBER_NEG)) |
c2988b20 NC |
3339 | return value; |
3340 | } | |
d008e5eb | 3341 | if (!numtype) { |
d008e5eb GS |
3342 | if (ckWARN(WARN_NUMERIC)) |
3343 | not_a_number(sv); | |
3344 | } | |
097ee67d | 3345 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 3346 | } |
3347 | ||
645c22ef DM |
3348 | /* |
3349 | =for apidoc sv_2pv_nolen | |
3350 | ||
3351 | Like C<sv_2pv()>, but doesn't return the length too. You should usually | |
3352 | use the macro wrapper C<SvPV_nolen(sv)> instead. | |
3353 | =cut | |
3354 | */ | |
3355 | ||
79072805 | 3356 | char * |
864dbfa3 | 3357 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
3358 | { |
3359 | STRLEN n_a; | |
3360 | return sv_2pv(sv, &n_a); | |
3361 | } | |
3362 | ||
645c22ef DM |
3363 | /* uiv_2buf(): private routine for use by sv_2pv_flags(): print an IV or |
3364 | * UV as a string towards the end of buf, and return pointers to start and | |
3365 | * end of it. | |
3366 | * | |
3367 | * We assume that buf is at least TYPE_CHARS(UV) long. | |
3368 | */ | |
3369 | ||
864dbfa3 | 3370 | static char * |
25da4f38 IZ |
3371 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
3372 | { | |
25da4f38 IZ |
3373 | char *ptr = buf + TYPE_CHARS(UV); |
3374 | char *ebuf = ptr; | |
3375 | int sign; | |
25da4f38 IZ |
3376 | |
3377 | if (is_uv) | |
3378 | sign = 0; | |
3379 | else if (iv >= 0) { | |
3380 | uv = iv; | |
3381 | sign = 0; | |
3382 | } else { | |
3383 | uv = -iv; | |
3384 | sign = 1; | |
3385 | } | |
3386 | do { | |
eb160463 | 3387 | *--ptr = '0' + (char)(uv % 10); |
25da4f38 IZ |
3388 | } while (uv /= 10); |
3389 | if (sign) | |
3390 | *--ptr = '-'; | |
3391 | *peob = ebuf; | |
3392 | return ptr; | |
3393 | } | |
3394 | ||
09540bc3 JH |
3395 | /* sv_2pv() is now a macro using Perl_sv_2pv_flags(); |
3396 | * this function provided for binary compatibility only | |
3397 | */ | |
3398 | ||
3399 | char * | |
3400 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) | |
3401 | { | |
3402 | return sv_2pv_flags(sv, lp, SV_GMAGIC); | |
3403 | } | |
3404 | ||
645c22ef DM |
3405 | /* |
3406 | =for apidoc sv_2pv_flags | |
3407 | ||
ff276b08 | 3408 | Returns a pointer to the string value of an SV, and sets *lp to its length. |
645c22ef DM |
3409 | If flags includes SV_GMAGIC, does an mg_get() first. Coerces sv to a string |
3410 | if necessary. | |
3411 | Normally invoked via the C<SvPV_flags> macro. C<sv_2pv()> and C<sv_2pv_nomg> | |
3412 | usually end up here too. | |
3413 | ||
3414 | =cut | |
3415 | */ | |
3416 | ||
8d6d96c1 HS |
3417 | char * |
3418 | Perl_sv_2pv_flags(pTHX_ register SV *sv, STRLEN *lp, I32 flags) | |
3419 | { | |
79072805 LW |
3420 | register char *s; |
3421 | int olderrno; | |
cb50f42d | 3422 | SV *tsv, *origsv; |
25da4f38 IZ |
3423 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
3424 | char *tmpbuf = tbuf; | |
79072805 | 3425 | |
463ee0b2 LW |
3426 | if (!sv) { |
3427 | *lp = 0; | |
73d840c0 | 3428 | return (char *)""; |
463ee0b2 | 3429 | } |
8990e307 | 3430 | if (SvGMAGICAL(sv)) { |
8d6d96c1 HS |
3431 | if (flags & SV_GMAGIC) |
3432 | mg_get(sv); | |
463ee0b2 LW |
3433 | if (SvPOKp(sv)) { |
3434 | *lp = SvCUR(sv); | |
3435 | return SvPVX(sv); | |
3436 | } | |
cf2093f6 | 3437 | if (SvIOKp(sv)) { |
1c846c1f | 3438 | if (SvIsUV(sv)) |
57def98f | 3439 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 3440 | else |
57def98f | 3441 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 3442 | tsv = Nullsv; |
a0d0e21e | 3443 | goto tokensave; |
463ee0b2 LW |
3444 | } |
3445 | if (SvNOKp(sv)) { | |
2d4389e4 | 3446 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 3447 | tsv = Nullsv; |
a0d0e21e | 3448 | goto tokensave; |
463ee0b2 | 3449 | } |
16d20bd9 | 3450 | if (!SvROK(sv)) { |
d008e5eb | 3451 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
d008e5eb | 3452 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
29489e7c | 3453 | report_uninit(sv); |
c6ee37c5 | 3454 | } |
16d20bd9 | 3455 | *lp = 0; |
73d840c0 | 3456 | return (char *)""; |
16d20bd9 | 3457 | } |
463ee0b2 | 3458 | } |
ed6116ce LW |
3459 | if (SvTHINKFIRST(sv)) { |
3460 | if (SvROK(sv)) { | |
a0d0e21e | 3461 | SV* tmpstr; |
e1ec3a88 | 3462 | register const char *typestr; |
1554e226 | 3463 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string)) && |
b4b9a328 | 3464 | (!SvROK(tmpstr) || (SvRV(tmpstr) != SvRV(sv)))) { |
446eaa42 YST |
3465 | char *pv = SvPV(tmpstr, *lp); |
3466 | if (SvUTF8(tmpstr)) | |
3467 | SvUTF8_on(sv); | |
3468 | else | |
3469 | SvUTF8_off(sv); | |
3470 | return pv; | |
3471 | } | |
cb50f42d | 3472 | origsv = sv; |
ed6116ce LW |
3473 | sv = (SV*)SvRV(sv); |
3474 | if (!sv) | |
e1ec3a88 | 3475 | typestr = "NULLREF"; |
ed6116ce | 3476 | else { |
f9277f47 IZ |
3477 | MAGIC *mg; |
3478 | ||
ed6116ce | 3479 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
3480 | case SVt_PVMG: |
3481 | if ( ((SvFLAGS(sv) & | |
1c846c1f | 3482 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) |
faf82a0b | 3483 | == (SVs_OBJECT|SVs_SMG)) |
14befaf4 | 3484 | && (mg = mg_find(sv, PERL_MAGIC_qr))) { |
e1ec3a88 | 3485 | const regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 3486 | |
2cd61cdb | 3487 | if (!mg->mg_ptr) { |
e1ec3a88 | 3488 | const char *fptr = "msix"; |
8782bef2 GB |
3489 | char reflags[6]; |
3490 | char ch; | |
3491 | int left = 0; | |
3492 | int right = 4; | |
ff385a1b | 3493 | char need_newline = 0; |
eb160463 | 3494 | U16 reganch = (U16)((re->reganch & PMf_COMPILETIME) >> 12); |
8782bef2 | 3495 | |
155aba94 | 3496 | while((ch = *fptr++)) { |
8782bef2 GB |
3497 | if(reganch & 1) { |
3498 | reflags[left++] = ch; | |
3499 | } | |
3500 | else { | |
3501 | reflags[right--] = ch; | |
3502 | } | |
3503 | reganch >>= 1; | |
3504 | } | |
3505 | if(left != 4) { | |
3506 | reflags[left] = '-'; | |
3507 | left = 5; | |
3508 | } | |
3509 | ||
3510 | mg->mg_len = re->prelen + 4 + left; | |
ff385a1b JF |
3511 | /* |
3512 | * If /x was used, we have to worry about a regex | |
3513 | * ending with a comment later being embedded | |
3514 | * within another regex. If so, we don't want this | |
3515 | * regex's "commentization" to leak out to the | |
3516 | * right part of the enclosing regex, we must cap | |
3517 | * it with a newline. | |
3518 | * | |
3519 | * So, if /x was used, we scan backwards from the | |
3520 | * end of the regex. If we find a '#' before we | |
3521 | * find a newline, we need to add a newline | |
3522 | * ourself. If we find a '\n' first (or if we | |
3523 | * don't find '#' or '\n'), we don't need to add | |
3524 | * anything. -jfriedl | |
3525 | */ | |
3526 | if (PMf_EXTENDED & re->reganch) | |
3527 | { | |
e1ec3a88 | 3528 | const char *endptr = re->precomp + re->prelen; |
ff385a1b JF |
3529 | while (endptr >= re->precomp) |
3530 | { | |
e1ec3a88 | 3531 | const char c = *(endptr--); |
ff385a1b JF |
3532 | if (c == '\n') |
3533 | break; /* don't need another */ | |
3534 | if (c == '#') { | |
3535 | /* we end while in a comment, so we | |
3536 | need a newline */ | |
3537 | mg->mg_len++; /* save space for it */ | |
3538 | need_newline = 1; /* note to add it */ | |
ab01544f | 3539 | break; |
ff385a1b JF |
3540 | } |
3541 | } | |
3542 | } | |
3543 | ||
8782bef2 GB |
3544 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); |
3545 | Copy("(?", mg->mg_ptr, 2, char); | |
3546 | Copy(reflags, mg->mg_ptr+2, left, char); | |
3547 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
3548 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
ff385a1b JF |
3549 | if (need_newline) |
3550 | mg->mg_ptr[mg->mg_len - 2] = '\n'; | |
1bd3ad17 IZ |
3551 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
3552 | mg->mg_ptr[mg->mg_len] = 0; | |
3553 | } | |
3280af22 | 3554 | PL_reginterp_cnt += re->program[0].next_off; |
cb50f42d YST |
3555 | |
3556 | if (re->reganch & ROPT_UTF8) | |
3557 | SvUTF8_on(origsv); | |
3558 | else | |
3559 | SvUTF8_off(origsv); | |
1bd3ad17 IZ |
3560 | *lp = mg->mg_len; |
3561 | return mg->mg_ptr; | |
f9277f47 IZ |
3562 | } |
3563 | /* Fall through */ | |
ed6116ce LW |
3564 | case SVt_NULL: |
3565 | case SVt_IV: | |
3566 | case SVt_NV: | |
3567 | case SVt_RV: | |
3568 | case SVt_PV: | |
3569 | case SVt_PVIV: | |
3570 | case SVt_PVNV: | |
e1ec3a88 AL |
3571 | case SVt_PVBM: typestr = SvROK(sv) ? "REF" : "SCALAR"; break; |
3572 | case SVt_PVLV: typestr = SvROK(sv) ? "REF" | |
be65207d DM |
3573 | /* tied lvalues should appear to be |
3574 | * scalars for backwards compatitbility */ | |
3575 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
3576 | ? "SCALAR" : "LVALUE"; break; | |
e1ec3a88 AL |
3577 | case SVt_PVAV: typestr = "ARRAY"; break; |
3578 | case SVt_PVHV: typestr = "HASH"; break; | |
3579 | case SVt_PVCV: typestr = "CODE"; break; | |
3580 | case SVt_PVGV: typestr = "GLOB"; break; | |
3581 | case SVt_PVFM: typestr = "FORMAT"; break; | |
3582 | case SVt_PVIO: typestr = "IO"; break; | |
3583 | default: typestr = "UNKNOWN"; break; | |
ed6116ce | 3584 | } |
46fc3d4c | 3585 | tsv = NEWSV(0,0); |
a5cb6b62 NC |
3586 | if (SvOBJECT(sv)) { |
3587 | const char *name = HvNAME(SvSTASH(sv)); | |
3588 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s(0x%"UVxf")", | |
e1ec3a88 | 3589 | name ? name : "__ANON__" , typestr, PTR2UV(sv)); |
a5cb6b62 | 3590 | } |
ed6116ce | 3591 | else |
e1ec3a88 | 3592 | Perl_sv_setpvf(aTHX_ tsv, "%s(0x%"UVxf")", typestr, PTR2UV(sv)); |
a0d0e21e | 3593 | goto tokensaveref; |
463ee0b2 | 3594 | } |
e1ec3a88 | 3595 | *lp = strlen(typestr); |
73d840c0 | 3596 | return (char *)typestr; |
79072805 | 3597 | } |
0336b60e | 3598 | if (SvREADONLY(sv) && !SvOK(sv)) { |
0336b60e | 3599 | if (ckWARN(WARN_UNINITIALIZED)) |
29489e7c | 3600 | report_uninit(sv); |
ed6116ce | 3601 | *lp = 0; |
73d840c0 | 3602 | return (char *)""; |
79072805 | 3603 | } |
79072805 | 3604 | } |
28e5dec8 JH |
3605 | if (SvIOK(sv) || ((SvIOKp(sv) && !SvNOKp(sv)))) { |
3606 | /* I'm assuming that if both IV and NV are equally valid then | |
3607 | converting the IV is going to be more efficient */ | |
e1ec3a88 AL |
3608 | const U32 isIOK = SvIOK(sv); |
3609 | const U32 isUIOK = SvIsUV(sv); | |
28e5dec8 JH |
3610 | char buf[TYPE_CHARS(UV)]; |
3611 | char *ebuf, *ptr; | |
3612 | ||
3613 | if (SvTYPE(sv) < SVt_PVIV) | |
3614 | sv_upgrade(sv, SVt_PVIV); | |
3615 | if (isUIOK) | |
3616 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); | |
3617 | else | |
3618 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); | |
eb160463 | 3619 | SvGROW(sv, (STRLEN)(ebuf - ptr + 1)); /* inlined from sv_setpvn */ |
28e5dec8 JH |
3620 | Move(ptr,SvPVX(sv),ebuf - ptr,char); |
3621 | SvCUR_set(sv, ebuf - ptr); | |
3622 | s = SvEND(sv); | |
3623 | *s = '\0'; | |
3624 | if (isIOK) | |
3625 | SvIOK_on(sv); | |
3626 | else | |
3627 | SvIOKp_on(sv); | |
3628 | if (isUIOK) | |
3629 | SvIsUV_on(sv); | |
3630 | } | |
3631 | else if (SvNOKp(sv)) { | |
79072805 LW |
3632 | if (SvTYPE(sv) < SVt_PVNV) |
3633 | sv_upgrade(sv, SVt_PVNV); | |
1c846c1f | 3634 | /* The +20 is pure guesswork. Configure test needed. --jhi */ |
59155cc0 | 3635 | SvGROW(sv, NV_DIG + 20); |
463ee0b2 | 3636 | s = SvPVX(sv); |
79072805 | 3637 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 3638 | #ifdef apollo |
463ee0b2 | 3639 | if (SvNVX(sv) == 0.0) |
79072805 LW |
3640 | (void)strcpy(s,"0"); |
3641 | else | |
3642 | #endif /*apollo*/ | |
bbce6d69 | 3643 | { |
2d4389e4 | 3644 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 3645 | } |
79072805 | 3646 | errno = olderrno; |
a0d0e21e LW |
3647 | #ifdef FIXNEGATIVEZERO |
3648 | if (*s == '-' && s[1] == '0' && !s[2]) | |
3649 | strcpy(s,"0"); | |
3650 | #endif | |
79072805 LW |
3651 | while (*s) s++; |
3652 | #ifdef hcx | |
3653 | if (s[-1] == '.') | |
46fc3d4c | 3654 | *--s = '\0'; |
79072805 LW |
3655 | #endif |
3656 | } | |
79072805 | 3657 | else { |
0336b60e IZ |
3658 | if (ckWARN(WARN_UNINITIALIZED) |
3659 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
29489e7c | 3660 | report_uninit(sv); |
a0d0e21e | 3661 | *lp = 0; |
25da4f38 IZ |
3662 | if (SvTYPE(sv) < SVt_PV) |
3663 | /* Typically the caller expects that sv_any is not NULL now. */ | |
3664 | sv_upgrade(sv, SVt_PV); | |
73d840c0 | 3665 | return (char *)""; |
79072805 | 3666 | } |
463ee0b2 LW |
3667 | *lp = s - SvPVX(sv); |
3668 | SvCUR_set(sv, *lp); | |
79072805 | 3669 | SvPOK_on(sv); |
1d7c1841 GS |
3670 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
3671 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 3672 | return SvPVX(sv); |
a0d0e21e LW |
3673 | |
3674 | tokensave: | |
3675 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
3676 | /* Sneaky stuff here */ | |
3677 | ||
3678 | tokensaveref: | |
46fc3d4c | 3679 | if (!tsv) |
96827780 | 3680 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 3681 | sv_2mortal(tsv); |
3682 | *lp = SvCUR(tsv); | |
3683 | return SvPVX(tsv); | |
a0d0e21e LW |
3684 | } |
3685 | else { | |
27da23d5 | 3686 | dVAR; |
a0d0e21e | 3687 | STRLEN len; |
73d840c0 | 3688 | const char *t; |
46fc3d4c | 3689 | |
3690 | if (tsv) { | |
3691 | sv_2mortal(tsv); | |
3692 | t = SvPVX(tsv); | |
3693 | len = SvCUR(tsv); | |
3694 | } | |
3695 | else { | |
96827780 MB |
3696 | t = tmpbuf; |
3697 | len = strlen(tmpbuf); | |
46fc3d4c | 3698 | } |
a0d0e21e | 3699 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 3700 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
3701 | t = "0"; | |
3702 | len = 1; | |
3703 | } | |
a0d0e21e LW |
3704 | #endif |
3705 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 3706 | *lp = len; |
a0d0e21e LW |
3707 | s = SvGROW(sv, len + 1); |
3708 | SvCUR_set(sv, len); | |
6bf554b4 | 3709 | SvPOKp_on(sv); |
e90e2364 | 3710 | return strcpy(s, t); |
a0d0e21e | 3711 | } |
463ee0b2 LW |
3712 | } |
3713 | ||
645c22ef | 3714 | /* |
6050d10e JP |
3715 | =for apidoc sv_copypv |
3716 | ||
3717 | Copies a stringified representation of the source SV into the | |
3718 | destination SV. Automatically performs any necessary mg_get and | |
54f0641b | 3719 | coercion of numeric values into strings. Guaranteed to preserve |
6050d10e | 3720 | UTF-8 flag even from overloaded objects. Similar in nature to |
54f0641b NIS |
3721 | sv_2pv[_flags] but operates directly on an SV instead of just the |
3722 | string. Mostly uses sv_2pv_flags to do its work, except when that | |
6050d10e JP |
3723 | would lose the UTF-8'ness of the PV. |
3724 | ||
3725 | =cut | |
3726 | */ | |
3727 | ||
3728 | void | |
3729 | Perl_sv_copypv(pTHX_ SV *dsv, register SV *ssv) | |
3730 | { | |
446eaa42 YST |
3731 | STRLEN len; |
3732 | char *s; | |
3733 | s = SvPV(ssv,len); | |
cb50f42d | 3734 | sv_setpvn(dsv,s,len); |
446eaa42 | 3735 | if (SvUTF8(ssv)) |
cb50f42d | 3736 | SvUTF8_on(dsv); |
446eaa42 | 3737 | else |
cb50f42d | 3738 | SvUTF8_off(dsv); |
6050d10e JP |
3739 | } |
3740 | ||
3741 | /* | |
645c22ef DM |
3742 | =for apidoc sv_2pvbyte_nolen |
3743 | ||
3744 | Return a pointer to the byte-encoded representation of the SV. | |
1e54db1a | 3745 | May cause the SV to be downgraded from UTF-8 as a side-effect. |
645c22ef DM |
3746 | |
3747 | Usually accessed via the C<SvPVbyte_nolen> macro. | |
3748 | ||
3749 | =cut | |
3750 | */ | |
3751 | ||
7340a771 GS |
3752 | char * |
3753 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
3754 | { | |
560a288e GS |
3755 | STRLEN n_a; |
3756 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
3757 | } |
3758 | ||
645c22ef DM |
3759 | /* |
3760 | =for apidoc sv_2pvbyte | |
3761 | ||
3762 | Return a pointer to the byte-encoded representation of the SV, and set *lp | |
1e54db1a | 3763 | to its length. May cause the SV to be downgraded from UTF-8 as a |
645c22ef DM |
3764 | side-effect. |
3765 | ||
3766 | Usually accessed via the C<SvPVbyte> macro. | |
3767 | ||
3768 | =cut | |
3769 | */ | |
3770 | ||
7340a771 GS |
3771 | char * |
3772 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
3773 | { | |
0875d2fe NIS |
3774 | sv_utf8_downgrade(sv,0); |
3775 | return SvPV(sv,*lp); | |
7340a771 GS |
3776 | } |
3777 | ||
645c22ef DM |
3778 | /* |
3779 | =for apidoc sv_2pvutf8_nolen | |
3780 | ||
1e54db1a JH |
3781 | Return a pointer to the UTF-8-encoded representation of the SV. |
3782 | May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3783 | |
3784 | Usually accessed via the C<SvPVutf8_nolen> macro. | |
3785 | ||
3786 | =cut | |
3787 | */ | |
3788 | ||
7340a771 GS |
3789 | char * |
3790 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
3791 | { | |
560a288e GS |
3792 | STRLEN n_a; |
3793 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
3794 | } |
3795 | ||
645c22ef DM |
3796 | /* |
3797 | =for apidoc sv_2pvutf8 | |
3798 | ||
1e54db1a JH |
3799 | Return a pointer to the UTF-8-encoded representation of the SV, and set *lp |
3800 | to its length. May cause the SV to be upgraded to UTF-8 as a side-effect. | |
645c22ef DM |
3801 | |
3802 | Usually accessed via the C<SvPVutf8> macro. | |
3803 | ||
3804 | =cut | |
3805 | */ | |
3806 | ||
7340a771 GS |
3807 | char * |
3808 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
3809 | { | |
560a288e | 3810 | sv_utf8_upgrade(sv); |
7d59b7e4 | 3811 | return SvPV(sv,*lp); |
7340a771 | 3812 | } |
1c846c1f | 3813 | |
645c22ef DM |
3814 | /* |
3815 | =for apidoc sv_2bool | |
3816 | ||
3817 | This function is only called on magical items, and is only used by | |
8cf8f3d1 | 3818 | sv_true() or its macro equivalent. |
645c22ef DM |
3819 | |
3820 | =cut | |
3821 | */ | |
3822 | ||
463ee0b2 | 3823 | bool |
864dbfa3 | 3824 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 3825 | { |
8990e307 | 3826 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
3827 | mg_get(sv); |
3828 | ||
a0d0e21e LW |
3829 | if (!SvOK(sv)) |
3830 | return 0; | |
3831 | if (SvROK(sv)) { | |
a0d0e21e | 3832 | SV* tmpsv; |
1554e226 | 3833 | if (SvAMAGIC(sv) && (tmpsv=AMG_CALLun(sv,bool_)) && |
9e3013b1 | 3834 | (!SvROK(tmpsv) || (SvRV(tmpsv) != SvRV(sv)))) |
8a31060d | 3835 | return (bool)SvTRUE(tmpsv); |
a0d0e21e LW |
3836 | return SvRV(sv) != 0; |
3837 | } | |
463ee0b2 | 3838 | if (SvPOKp(sv)) { |
11343788 MB |
3839 | register XPV* Xpvtmp; |
3840 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
3841 | (*Xpvtmp->xpv_pv > '0' || | |
3842 | Xpvtmp->xpv_cur > 1 || | |
3843 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
3844 | return 1; |
3845 | else | |
3846 | return 0; | |
3847 | } | |
3848 | else { | |
3849 | if (SvIOKp(sv)) | |
3850 | return SvIVX(sv) != 0; | |
3851 | else { | |
3852 | if (SvNOKp(sv)) | |
3853 | return SvNVX(sv) != 0.0; | |
3854 | else | |
3855 | return FALSE; | |
3856 | } | |
3857 | } | |
79072805 LW |
3858 | } |
3859 | ||
09540bc3 JH |
3860 | /* sv_utf8_upgrade() is now a macro using sv_utf8_upgrade_flags(); |
3861 | * this function provided for binary compatibility only | |
3862 | */ | |
3863 | ||
3864 | ||
3865 | STRLEN | |
3866 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) | |
3867 | { | |
3868 | return sv_utf8_upgrade_flags(sv, SV_GMAGIC); | |
3869 | } | |
3870 | ||
c461cf8f JH |
3871 | /* |
3872 | =for apidoc sv_utf8_upgrade | |
3873 | ||
78ea37eb | 3874 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3875 | Forces the SV to string form if it is not already. |
4411f3b6 NIS |
3876 | Always sets the SvUTF8 flag to avoid future validity checks even |
3877 | if all the bytes have hibit clear. | |
c461cf8f | 3878 | |
13a6c0e0 JH |
3879 | This is not as a general purpose byte encoding to Unicode interface: |
3880 | use the Encode extension for that. | |
3881 | ||
8d6d96c1 HS |
3882 | =for apidoc sv_utf8_upgrade_flags |
3883 | ||
78ea37eb | 3884 | Converts the PV of an SV to its UTF-8-encoded form. |
645c22ef | 3885 | Forces the SV to string form if it is not already. |
8d6d96c1 HS |
3886 | Always sets the SvUTF8 flag to avoid future validity checks even |
3887 | if all the bytes have hibit clear. If C<flags> has C<SV_GMAGIC> bit set, | |
3888 | will C<mg_get> on C<sv> if appropriate, else not. C<sv_utf8_upgrade> and | |
3889 | C<sv_utf8_upgrade_nomg> are implemented in terms of this function. | |
3890 | ||
13a6c0e0 JH |
3891 | This is not as a general purpose byte encoding to Unicode interface: |
3892 | use the Encode extension for that. | |
3893 | ||
8d6d96c1 HS |
3894 | =cut |
3895 | */ | |
3896 | ||
3897 | STRLEN | |
3898 | Perl_sv_utf8_upgrade_flags(pTHX_ register SV *sv, I32 flags) | |
3899 | { | |
808c356f RGS |
3900 | if (sv == &PL_sv_undef) |
3901 | return 0; | |
e0e62c2a NIS |
3902 | if (!SvPOK(sv)) { |
3903 | STRLEN len = 0; | |
d52b7888 NC |
3904 | if (SvREADONLY(sv) && (SvPOKp(sv) || SvIOKp(sv) || SvNOKp(sv))) { |
3905 | (void) sv_2pv_flags(sv,&len, flags); | |
3906 | if (SvUTF8(sv)) | |
3907 | return len; | |
3908 | } else { | |
3909 | (void) SvPV_force(sv,len); | |
3910 | } | |
e0e62c2a | 3911 | } |
4411f3b6 | 3912 | |
f5cee72b | 3913 | if (SvUTF8(sv)) { |
5fec3b1d | 3914 | return SvCUR(sv); |
f5cee72b | 3915 | } |
5fec3b1d | 3916 | |
765f542d NC |
3917 | if (SvIsCOW(sv)) { |
3918 | sv_force_normal_flags(sv, 0); | |
db42d148 NIS |
3919 | } |
3920 | ||
88632417 | 3921 | if (PL_encoding && !(flags & SV_UTF8_NO_ENCODING)) |
799ef3cb | 3922 | sv_recode_to_utf8(sv, PL_encoding); |
9f4817db | 3923 | else { /* Assume Latin-1/EBCDIC */ |
c4e7c712 NC |
3924 | /* This function could be much more efficient if we |
3925 | * had a FLAG in SVs to signal if there are any hibit | |
3926 | * chars in the PV. Given that there isn't such a flag | |
3927 | * make the loop as fast as possible. */ | |
3928 | U8 *s = (U8 *) SvPVX(sv); | |
3929 | U8 *e = (U8 *) SvEND(sv); | |
3930 | U8 *t = s; | |
3931 | int hibit = 0; | |
3932 | ||
3933 | while (t < e) { | |
3934 | U8 ch = *t++; | |
3935 | if ((hibit = !NATIVE_IS_INVARIANT(ch))) | |
3936 | break; | |
3937 | } | |
3938 | if (hibit) { | |
3939 | STRLEN len = SvCUR(sv) + 1; /* Plus the \0 */ | |
3940 | s = bytes_to_utf8((U8*)s, &len); | |
3941 | ||
3942 | SvPV_free(sv); /* No longer using what was there before. */ | |
3943 | ||
3944 | SvPV_set(sv, (char*)s); | |
3945 | SvCUR_set(sv, len - 1); | |
3946 | SvLEN_set(sv, len); /* No longer know the real size. */ | |
3947 | } | |
3948 | /* Mark as UTF-8 even if no hibit - saves scanning loop */ | |
3949 | SvUTF8_on(sv); | |
560a288e | 3950 | } |
4411f3b6 | 3951 | return SvCUR(sv); |
560a288e GS |
3952 | } |
3953 | ||
c461cf8f JH |
3954 | /* |
3955 | =for apidoc sv_utf8_downgrade | |
3956 | ||
78ea37eb TS |
3957 | Attempts to convert the PV of an SV from characters to bytes. |
3958 | If the PV contains a character beyond byte, this conversion will fail; | |
3959 | in this case, either returns false or, if C<fail_ok> is not | |
c461cf8f JH |
3960 | true, croaks. |
3961 | ||
13a6c0e0 JH |
3962 | This is not as a general purpose Unicode to byte encoding interface: |
3963 | use the Encode extension for that. | |
3964 | ||
c461cf8f JH |
3965 | =cut |
3966 | */ | |
3967 | ||
560a288e GS |
3968 | bool |
3969 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
3970 | { | |
78ea37eb | 3971 | if (SvPOKp(sv) && SvUTF8(sv)) { |
fa301091 | 3972 | if (SvCUR(sv)) { |
03cfe0ae | 3973 | U8 *s; |
652088fc | 3974 | STRLEN len; |
fa301091 | 3975 | |
765f542d NC |
3976 | if (SvIsCOW(sv)) { |
3977 | sv_force_normal_flags(sv, 0); | |
3978 | } | |
03cfe0ae NIS |
3979 | s = (U8 *) SvPV(sv, len); |
3980 | if (!utf8_to_bytes(s, &len)) { | |
fa301091 JH |
3981 | if (fail_ok) |
3982 | return FALSE; | |
3983 | else { | |
3984 | if (PL_op) | |
3985 | Perl_croak(aTHX_ "Wide character in %s", | |
53e06cf0 | 3986 | OP_DESC(PL_op)); |
fa301091 JH |
3987 | else |
3988 | Perl_croak(aTHX_ "Wide character"); | |
3989 | } | |
4b3603a4 | 3990 | } |
b162af07 | 3991 | SvCUR_set(sv, len); |
67e989fb | 3992 | } |
560a288e | 3993 | } |
ffebcc3e | 3994 | SvUTF8_off(sv); |
560a288e GS |
3995 | return TRUE; |
3996 | } | |
3997 | ||
c461cf8f JH |
3998 | /* |
3999 | =for apidoc sv_utf8_encode | |
4000 | ||
78ea37eb TS |
4001 | Converts the PV of an SV to UTF-8, but then turns the C<SvUTF8> |
4002 | flag off so that it looks like octets again. | |
c461cf8f JH |
4003 | |
4004 | =cut | |
4005 | */ | |
4006 | ||
560a288e GS |
4007 | void |
4008 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
4009 | { | |
4411f3b6 | 4010 | (void) sv_utf8_upgrade(sv); |
4c94c214 NC |
4011 | if (SvIsCOW(sv)) { |
4012 | sv_force_normal_flags(sv, 0); | |
4013 | } | |
4014 | if (SvREADONLY(sv)) { | |
4015 | Perl_croak(aTHX_ PL_no_modify); | |
4016 | } | |
560a288e GS |
4017 | SvUTF8_off(sv); |
4018 | } | |
4019 | ||
4411f3b6 NIS |
4020 | /* |
4021 | =for apidoc sv_utf8_decode | |
4022 | ||
78ea37eb TS |
4023 | If the PV of the SV is an octet sequence in UTF-8 |
4024 | and contains a multiple-byte character, the C<SvUTF8> flag is turned on | |
4025 | so that it looks like a character. If the PV contains only single-byte | |
4026 | characters, the C<SvUTF8> flag stays being off. | |
4027 | Scans PV for validity and returns false if the PV is invalid UTF-8. | |
4411f3b6 NIS |
4028 | |
4029 | =cut | |
4030 | */ | |
4031 | ||
560a288e GS |
4032 | bool |
4033 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
4034 | { | |
78ea37eb | 4035 | if (SvPOKp(sv)) { |
63cd0674 NIS |
4036 | U8 *c; |
4037 | U8 *e; | |
9cbac4c7 | 4038 | |
645c22ef DM |
4039 | /* The octets may have got themselves encoded - get them back as |
4040 | * bytes | |
4041 | */ | |
4042 | if (!sv_utf8_downgrade(sv, TRUE)) | |
560a288e GS |
4043 | return FALSE; |
4044 | ||
4045 | /* it is actually just a matter of turning the utf8 flag on, but | |
4046 | * we want to make sure everything inside is valid utf8 first. | |
4047 | */ | |
63cd0674 NIS |
4048 | c = (U8 *) SvPVX(sv); |
4049 | if (!is_utf8_string(c, SvCUR(sv)+1)) | |
67e989fb | 4050 | return FALSE; |
63cd0674 | 4051 | e = (U8 *) SvEND(sv); |
511c2ff0 | 4052 | while (c < e) { |
c4d5f83a NIS |
4053 | U8 ch = *c++; |
4054 | if (!UTF8_IS_INVARIANT(ch)) { | |
67e989fb JH |
4055 | SvUTF8_on(sv); |
4056 | break; | |
4057 | } | |
560a288e | 4058 | } |
560a288e GS |
4059 | } |
4060 | return TRUE; | |
4061 | } | |
4062 | ||
09540bc3 JH |
4063 | /* sv_setsv() is now a macro using Perl_sv_setsv_flags(); |
4064 | * this function provided for binary compatibility only | |
4065 | */ | |
4066 | ||
4067 | void | |
4068 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) | |
4069 | { | |
4070 | sv_setsv_flags(dstr, sstr, SV_GMAGIC); | |
4071 | } | |
4072 | ||
954c1994 GS |
4073 | /* |
4074 | =for apidoc sv_setsv | |
4075 | ||
645c22ef DM |
4076 | Copies the contents of the source SV C<ssv> into the destination SV |
4077 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
4078 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
4079 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
4080 | content of the destination. | |
4081 | ||
4082 | You probably want to use one of the assortment of wrappers, such as | |
4083 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
4084 | C<SvSetMagicSV_nosteal>. | |
4085 | ||
8d6d96c1 HS |
4086 | =for apidoc sv_setsv_flags |
4087 | ||
645c22ef DM |
4088 | Copies the contents of the source SV C<ssv> into the destination SV |
4089 | C<dsv>. The source SV may be destroyed if it is mortal, so don't use this | |
4090 | function if the source SV needs to be reused. Does not handle 'set' magic. | |
4091 | Loosely speaking, it performs a copy-by-value, obliterating any previous | |
4092 | content of the destination. | |
4093 | If the C<flags> parameter has the C<SV_GMAGIC> bit set, will C<mg_get> on | |
5fcdf167 NC |
4094 | C<ssv> if appropriate, else not. If the C<flags> parameter has the |
4095 | C<NOSTEAL> bit set then the buffers of temps will not be stolen. <sv_setsv> | |
4096 | and C<sv_setsv_nomg> are implemented in terms of this function. | |
645c22ef DM |
4097 | |
4098 | You probably want to use one of the assortment of wrappers, such as | |
4099 | C<SvSetSV>, C<SvSetSV_nosteal>, C<SvSetMagicSV> and | |
4100 | C<SvSetMagicSV_nosteal>. | |
4101 | ||
4102 | This is the primary function for copying scalars, and most other | |
4103 | copy-ish functions and macros use this underneath. | |
8d6d96c1 HS |
4104 | |
4105 | =cut | |
4106 | */ | |
4107 | ||
4108 | void | |
4109 | Perl_sv_setsv_flags(pTHX_ SV *dstr, register SV *sstr, I32 flags) | |
4110 | { | |
8990e307 LW |
4111 | register U32 sflags; |
4112 | register int dtype; | |
4113 | register int stype; | |
463ee0b2 | 4114 | |
79072805 LW |
4115 | if (sstr == dstr) |
4116 | return; | |
765f542d | 4117 | SV_CHECK_THINKFIRST_COW_DROP(dstr); |
79072805 | 4118 | if (!sstr) |
3280af22 | 4119 | sstr = &PL_sv_undef; |
8990e307 LW |
4120 | stype = SvTYPE(sstr); |
4121 | dtype = SvTYPE(dstr); | |
79072805 | 4122 | |
a0d0e21e | 4123 | SvAMAGIC_off(dstr); |
7a5fa8a2 | 4124 | if ( SvVOK(dstr) ) |
ece467f9 JP |
4125 | { |
4126 | /* need to nuke the magic */ | |
4127 | mg_free(dstr); | |
4128 | SvRMAGICAL_off(dstr); | |
4129 | } | |
9e7bc3e8 | 4130 | |
463ee0b2 | 4131 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 4132 | |
8990e307 | 4133 | switch (stype) { |
79072805 | 4134 | case SVt_NULL: |
aece5585 | 4135 | undef_sstr: |
20408e3c GS |
4136 | if (dtype != SVt_PVGV) { |
4137 | (void)SvOK_off(dstr); | |
4138 | return; | |
4139 | } | |
4140 | break; | |
463ee0b2 | 4141 | case SVt_IV: |
aece5585 GA |
4142 | if (SvIOK(sstr)) { |
4143 | switch (dtype) { | |
4144 | case SVt_NULL: | |
8990e307 | 4145 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
4146 | break; |
4147 | case SVt_NV: | |
8990e307 | 4148 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
4149 | break; |
4150 | case SVt_RV: | |
4151 | case SVt_PV: | |
a0d0e21e | 4152 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
4153 | break; |
4154 | } | |
4155 | (void)SvIOK_only(dstr); | |
45977657 | 4156 | SvIV_set(dstr, SvIVX(sstr)); |
25da4f38 IZ |
4157 | if (SvIsUV(sstr)) |
4158 | SvIsUV_on(dstr); | |
27c9684d AP |
4159 | if (SvTAINTED(sstr)) |
4160 | SvTAINT(dstr); | |
aece5585 | 4161 | return; |
8990e307 | 4162 | } |
aece5585 GA |
4163 | goto undef_sstr; |
4164 | ||
463ee0b2 | 4165 | case SVt_NV: |
aece5585 GA |
4166 | if (SvNOK(sstr)) { |
4167 | switch (dtype) { | |
4168 | case SVt_NULL: | |
4169 | case SVt_IV: | |
8990e307 | 4170 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
4171 | break; |
4172 | case SVt_RV: | |
4173 | case SVt_PV: | |
4174 | case SVt_PVIV: | |
a0d0e21e | 4175 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
4176 | break; |
4177 | } | |
9d6ce603 | 4178 | SvNV_set(dstr, SvNVX(sstr)); |
aece5585 | 4179 | (void)SvNOK_only(dstr); |
27c9684d AP |
4180 | if (SvTAINTED(sstr)) |
4181 | SvTAINT(dstr); | |
aece5585 | 4182 | return; |
8990e307 | 4183 | } |
aece5585 GA |
4184 | goto undef_sstr; |
4185 | ||
ed6116ce | 4186 | case SVt_RV: |
8990e307 | 4187 | if (dtype < SVt_RV) |
ed6116ce | 4188 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 4189 | else if (dtype == SVt_PVGV && |
23bb1b96 | 4190 | SvROK(sstr) && SvTYPE(SvRV(sstr)) == SVt_PVGV) { |
c07a80fd | 4191 | sstr = SvRV(sstr); |
a5f75d66 | 4192 | if (sstr == dstr) { |
1d7c1841 GS |
4193 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
4194 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
4195 | { | |
a5f75d66 | 4196 | GvIMPORTED_on(dstr); |
1d7c1841 | 4197 | } |
a5f75d66 AD |
4198 | GvMULTI_on(dstr); |
4199 | return; | |
4200 | } | |
c07a80fd | 4201 | goto glob_assign; |
4202 | } | |
ed6116ce | 4203 | break; |
fc36a67e | 4204 | case SVt_PVFM: |
d89fc664 NC |
4205 | #ifdef PERL_COPY_ON_WRITE |
4206 | if ((SvFLAGS(sstr) & CAN_COW_MASK) == CAN_COW_FLAGS) { | |
4207 | if (dtype < SVt_PVIV) | |
4208 | sv_upgrade(dstr, SVt_PVIV); | |
4209 | break; | |
4210 | } | |
4211 | /* Fall through */ | |
4212 | #endif | |
4213 | case SVt_PV: | |
8990e307 | 4214 | if (dtype < SVt_PV) |
463ee0b2 | 4215 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
4216 | break; |
4217 | case SVt_PVIV: | |
8990e307 | 4218 | if (dtype < SVt_PVIV) |
463ee0b2 | 4219 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
4220 | break; |
4221 | case SVt_PVNV: | |
8990e307 | 4222 | if (dtype < SVt_PVNV) |
463ee0b2 | 4223 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 4224 | break; |
4633a7c4 LW |
4225 | case SVt_PVAV: |
4226 | case SVt_PVHV: | |
4227 | case SVt_PVCV: | |
4633a7c4 | 4228 | case SVt_PVIO: |
533c011a | 4229 | if (PL_op) |
cea2e8a9 | 4230 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
53e06cf0 | 4231 | OP_NAME(PL_op)); |
4633a7c4 | 4232 | else |
cea2e8a9 | 4233 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
4234 | break; |
4235 | ||
79072805 | 4236 | case SVt_PVGV: |
8990e307 | 4237 | if (dtype <= SVt_PVGV) { |
c07a80fd | 4238 | glob_assign: |
a5f75d66 | 4239 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
4240 | char *name = GvNAME(sstr); |
4241 | STRLEN len = GvNAMELEN(sstr); | |
b76195c2 DM |
4242 | /* don't upgrade SVt_PVLV: it can hold a glob */ |
4243 | if (dtype != SVt_PVLV) | |
4244 | sv_upgrade(dstr, SVt_PVGV); | |
14befaf4 | 4245 | sv_magic(dstr, dstr, PERL_MAGIC_glob, Nullch, 0); |
85aff577 | 4246 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
4247 | GvNAME(dstr) = savepvn(name, len); |
4248 | GvNAMELEN(dstr) = len; | |
4249 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
4250 | } | |
7bac28a0 | 4251 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
4252 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
4253 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 4254 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 4255 | GvNAME(dstr)); |
5bd07a3d | 4256 | |
7fb37951 AMS |
4257 | #ifdef GV_UNIQUE_CHECK |
4258 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
4259 | Perl_croak(aTHX_ PL_no_modify); |
4260 | } | |
4261 | #endif | |
4262 | ||
a0d0e21e | 4263 | (void)SvOK_off(dstr); |
a5f75d66 | 4264 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 4265 | gp_free((GV*)dstr); |
79072805 | 4266 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
27c9684d AP |
4267 | if (SvTAINTED(sstr)) |
4268 | SvTAINT(dstr); | |
1d7c1841 GS |
4269 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
4270 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
4271 | { | |
a5f75d66 | 4272 | GvIMPORTED_on(dstr); |
1d7c1841 | 4273 | } |
a5f75d66 | 4274 | GvMULTI_on(dstr); |
79072805 LW |
4275 | return; |
4276 | } | |
4277 | /* FALL THROUGH */ | |
4278 | ||
4279 | default: | |
8d6d96c1 | 4280 | if (SvGMAGICAL(sstr) && (flags & SV_GMAGIC)) { |
973f89ab | 4281 | mg_get(sstr); |
eb160463 | 4282 | if ((int)SvTYPE(sstr) != stype) { |
973f89ab CS |
4283 | stype = SvTYPE(sstr); |
4284 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
4285 | goto glob_assign; | |
4286 | } | |
4287 | } | |
ded42b9f | 4288 | if (stype == SVt_PVLV) |
6fc92669 | 4289 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 4290 | else |
eb160463 | 4291 | (void)SvUPGRADE(dstr, (U32)stype); |
79072805 LW |
4292 | } |
4293 | ||
8990e307 LW |
4294 | sflags = SvFLAGS(sstr); |
4295 | ||
4296 | if (sflags & SVf_ROK) { | |
4297 | if (dtype >= SVt_PV) { | |
4298 | if (dtype == SVt_PVGV) { | |
4299 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
4300 | SV *dref = 0; | |
a5f75d66 | 4301 | int intro = GvINTRO(dstr); |
a0d0e21e | 4302 | |
7fb37951 AMS |
4303 | #ifdef GV_UNIQUE_CHECK |
4304 | if (GvUNIQUE((GV*)dstr)) { | |
5bd07a3d DM |
4305 | Perl_croak(aTHX_ PL_no_modify); |
4306 | } | |
4307 | #endif | |
4308 | ||
a0d0e21e | 4309 | if (intro) { |
a5f75d66 | 4310 | GvINTRO_off(dstr); /* one-shot flag */ |
1d7c1841 | 4311 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 4312 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 4313 | } |
a5f75d66 | 4314 | GvMULTI_on(dstr); |
8990e307 LW |
4315 | switch (SvTYPE(sref)) { |
4316 | case SVt_PVAV: | |
a0d0e21e | 4317 | if (intro) |
890ed176 | 4318 | SAVEGENERICSV(GvAV(dstr)); |
a0d0e21e LW |
4319 | else |
4320 | dref = (SV*)GvAV(dstr); | |
8990e307 | 4321 | GvAV(dstr) = (AV*)sref; |
39bac7f7 | 4322 | if (!GvIMPORTED_AV(dstr) |
1d7c1841 GS |
4323 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4324 | { | |
a5f75d66 | 4325 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 4326 | } |
8990e307 LW |
4327 | break; |
4328 | case SVt_PVHV: | |
a0d0e21e | 4329 | if (intro) |
890ed176 | 4330 | SAVEGENERICSV(GvHV(dstr)); |
a0d0e21e LW |
4331 | else |
4332 | dref = (SV*)GvHV(dstr); | |
8990e307 | 4333 | GvHV(dstr) = (HV*)sref; |
39bac7f7 | 4334 | if (!GvIMPORTED_HV(dstr) |
1d7c1841 GS |
4335 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4336 | { | |
a5f75d66 | 4337 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 4338 | } |
8990e307 LW |
4339 | break; |
4340 | case SVt_PVCV: | |
8ebc5c01 | 4341 | if (intro) { |
4342 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
4343 | SvREFCNT_dec(GvCV(dstr)); | |
4344 | GvCV(dstr) = Nullcv; | |
68dc0745 | 4345 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 4346 | PL_sub_generation++; |
8ebc5c01 | 4347 | } |
890ed176 | 4348 | SAVEGENERICSV(GvCV(dstr)); |
8ebc5c01 | 4349 | } |
68dc0745 | 4350 | else |
4351 | dref = (SV*)GvCV(dstr); | |
4352 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 4353 | CV* cv = GvCV(dstr); |
4633a7c4 | 4354 | if (cv) { |
68dc0745 | 4355 | if (!GvCVGEN((GV*)dstr) && |
4356 | (CvROOT(cv) || CvXSUB(cv))) | |
4357 | { | |
7bac28a0 | 4358 | /* ahem, death to those who redefine |
4359 | * active sort subs */ | |
3280af22 NIS |
4360 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
4361 | PL_sortcop == CvSTART(cv)) | |
1c846c1f | 4362 | Perl_croak(aTHX_ |
7bac28a0 | 4363 | "Can't redefine active sort subroutine %s", |
4364 | GvENAME((GV*)dstr)); | |
beab0874 JT |
4365 | /* Redefining a sub - warning is mandatory if |
4366 | it was a const and its value changed. */ | |
4367 | if (ckWARN(WARN_REDEFINE) | |
4368 | || (CvCONST(cv) | |
4369 | && (!CvCONST((CV*)sref) | |
4370 | || sv_cmp(cv_const_sv(cv), | |
4371 | cv_const_sv((CV*)sref))))) | |
4372 | { | |
9014280d | 4373 | Perl_warner(aTHX_ packWARN(WARN_REDEFINE), |
beab0874 | 4374 | CvCONST(cv) |
910764e6 RGS |
4375 | ? "Constant subroutine %s::%s redefined" |
4376 | : "Subroutine %s::%s redefined", | |
4377 | HvNAME(GvSTASH((GV*)dstr)), | |
beab0874 JT |
4378 | GvENAME((GV*)dstr)); |
4379 | } | |
9607fc9c | 4380 | } |
fb24441d RGS |
4381 | if (!intro) |
4382 | cv_ckproto(cv, (GV*)dstr, | |
4383 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 4384 | } |
a5f75d66 | 4385 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 4386 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 4387 | GvASSUMECV_on(dstr); |
3280af22 | 4388 | PL_sub_generation++; |
a5f75d66 | 4389 | } |
39bac7f7 | 4390 | if (!GvIMPORTED_CV(dstr) |
1d7c1841 GS |
4391 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4392 | { | |
a5f75d66 | 4393 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 4394 | } |
8990e307 | 4395 | break; |
91bba347 LW |
4396 | case SVt_PVIO: |
4397 | if (intro) | |
890ed176 | 4398 | SAVEGENERICSV(GvIOp(dstr)); |
91bba347 LW |
4399 | else |
4400 | dref = (SV*)GvIOp(dstr); | |
4401 | GvIOp(dstr) = (IO*)sref; | |
4402 | break; | |
f4d13ee9 JH |
4403 | case SVt_PVFM: |
4404 | if (intro) | |
890ed176 | 4405 | SAVEGENERICSV(GvFORM(dstr)); |
f4d13ee9 JH |
4406 | else |
4407 | dref = (SV*)GvFORM(dstr); | |
4408 | GvFORM(dstr) = (CV*)sref; | |
4409 | break; | |
8990e307 | 4410 | default: |
a0d0e21e | 4411 | if (intro) |
890ed176 | 4412 | SAVEGENERICSV(GvSV(dstr)); |
a0d0e21e LW |
4413 | else |
4414 | dref = (SV*)GvSV(dstr); | |
8990e307 | 4415 | GvSV(dstr) = sref; |
39bac7f7 | 4416 | if (!GvIMPORTED_SV(dstr) |
1d7c1841 GS |
4417 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) |
4418 | { | |
a5f75d66 | 4419 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 4420 | } |
8990e307 LW |
4421 | break; |
4422 | } | |
4423 | if (dref) | |
4424 | SvREFCNT_dec(dref); | |
27c9684d AP |
4425 | if (SvTAINTED(sstr)) |
4426 | SvTAINT(dstr); | |
8990e307 LW |
4427 | return; |
4428 | } | |
a0d0e21e | 4429 | if (SvPVX(dstr)) { |
8bd4d4c5 | 4430 | SvPV_free(dstr); |
b162af07 SP |
4431 | SvLEN_set(dstr, 0); |
4432 | SvCUR_set(dstr, 0); | |
a0d0e21e | 4433 | } |
8990e307 | 4434 | } |
a0d0e21e | 4435 | (void)SvOK_off(dstr); |
b162af07 | 4436 | SvRV_set(dstr, SvREFCNT_inc(SvRV(sstr))); |
ed6116ce | 4437 | SvROK_on(dstr); |
8990e307 | 4438 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4439 | SvNOKp_on(dstr); |
4440 | /* Only set the public OK flag if the source has public OK. */ | |
4441 | if (sflags & SVf_NOK) | |
4442 | SvFLAGS(dstr) |= SVf_NOK; | |
9d6ce603 | 4443 | SvNV_set(dstr, SvNVX(sstr)); |
ed6116ce | 4444 | } |
8990e307 | 4445 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4446 | (void)SvIOKp_on(dstr); |
4447 | if (sflags & SVf_IOK) | |
4448 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4449 | if (sflags & SVf_IVisUV) |
25da4f38 | 4450 | SvIsUV_on(dstr); |
45977657 | 4451 | SvIV_set(dstr, SvIVX(sstr)); |
ed6116ce | 4452 | } |
a0d0e21e LW |
4453 | if (SvAMAGIC(sstr)) { |
4454 | SvAMAGIC_on(dstr); | |
4455 | } | |
ed6116ce | 4456 | } |
8990e307 | 4457 | else if (sflags & SVp_POK) { |
765f542d | 4458 | bool isSwipe = 0; |
79072805 LW |
4459 | |
4460 | /* | |
4461 | * Check to see if we can just swipe the string. If so, it's a | |
4462 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
4463 | * It might even be a win on short strings if SvPVX(dstr) |
4464 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
4465 | */ |
4466 | ||
120fac95 NC |
4467 | /* Whichever path we take through the next code, we want this true, |
4468 | and doing it now facilitates the COW check. */ | |
4469 | (void)SvPOK_only(dstr); | |
4470 | ||
765f542d NC |
4471 | if ( |
4472 | #ifdef PERL_COPY_ON_WRITE | |
4473 | (sflags & (SVf_FAKE | SVf_READONLY)) != (SVf_FAKE | SVf_READONLY) | |
4474 | && | |
4475 | #endif | |
4476 | !(isSwipe = | |
4477 | (sflags & SVs_TEMP) && /* slated for free anyway? */ | |
4478 | !(sflags & SVf_OOK) && /* and not involved in OOK hack? */ | |
5fcdf167 NC |
4479 | (!(flags & SV_NOSTEAL)) && |
4480 | /* and we're allowed to steal temps */ | |
765f542d NC |
4481 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
4482 | SvLEN(sstr) && /* and really is a string */ | |
645c22ef | 4483 | /* and won't be needed again, potentially */ |
765f542d NC |
4484 | !(PL_op && PL_op->op_type == OP_AASSIGN)) |
4485 | #ifdef PERL_COPY_ON_WRITE | |
4486 | && !((sflags & CAN_COW_MASK) == CAN_COW_FLAGS | |
120fac95 | 4487 | && (SvFLAGS(dstr) & CAN_COW_MASK) == CAN_COW_FLAGS |
765f542d NC |
4488 | && SvTYPE(sstr) >= SVt_PVIV) |
4489 | #endif | |
4490 | ) { | |
4491 | /* Failed the swipe test, and it's not a shared hash key either. | |
4492 | Have to copy the string. */ | |
4493 | STRLEN len = SvCUR(sstr); | |
4494 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
4495 | Move(SvPVX(sstr),SvPVX(dstr),len,char); | |
4496 | SvCUR_set(dstr, len); | |
4497 | *SvEND(dstr) = '\0'; | |
765f542d NC |
4498 | } else { |
4499 | /* If PERL_COPY_ON_WRITE is not defined, then isSwipe will always | |
4500 | be true in here. */ | |
4501 | #ifdef PERL_COPY_ON_WRITE | |
4502 | /* Either it's a shared hash key, or it's suitable for | |
4503 | copy-on-write or we can swipe the string. */ | |
46187eeb | 4504 | if (DEBUG_C_TEST) { |
ed252734 | 4505 | PerlIO_printf(Perl_debug_log, "Copy on write: sstr --> dstr\n"); |
e419cbc5 NC |
4506 | sv_dump(sstr); |
4507 | sv_dump(dstr); | |
46187eeb | 4508 | } |
765f542d NC |
4509 | if (!isSwipe) { |
4510 | /* I believe I should acquire a global SV mutex if | |
4511 | it's a COW sv (not a shared hash key) to stop | |
4512 | it going un copy-on-write. | |
4513 | If the source SV has gone un copy on write between up there | |
4514 | and down here, then (assert() that) it is of the correct | |
4515 | form to make it copy on write again */ | |
4516 | if ((sflags & (SVf_FAKE | SVf_READONLY)) | |
4517 | != (SVf_FAKE | SVf_READONLY)) { | |
4518 | SvREADONLY_on(sstr); | |
4519 | SvFAKE_on(sstr); | |
4520 | /* Make the source SV into a loop of 1. | |
4521 | (about to become 2) */ | |
a29f6d03 | 4522 | SV_COW_NEXT_SV_SET(sstr, sstr); |
765f542d NC |
4523 | } |
4524 | } | |
4525 | #endif | |
4526 | /* Initial code is common. */ | |
adbc6bb1 | 4527 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
4528 | if (SvOOK(dstr)) { |
4529 | SvFLAGS(dstr) &= ~SVf_OOK; | |
4530 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
4531 | } | |
50483b2c | 4532 | else if (SvLEN(dstr)) |
a5f75d66 | 4533 | Safefree(SvPVX(dstr)); |
79072805 | 4534 | } |
765f542d NC |
4535 | |
4536 | #ifdef PERL_COPY_ON_WRITE | |
4537 | if (!isSwipe) { | |
4538 | /* making another shared SV. */ | |
4539 | STRLEN cur = SvCUR(sstr); | |
4540 | STRLEN len = SvLEN(sstr); | |
d89fc664 | 4541 | assert (SvTYPE(dstr) >= SVt_PVIV); |
765f542d NC |
4542 | if (len) { |
4543 | /* SvIsCOW_normal */ | |
4544 | /* splice us in between source and next-after-source. */ | |
a29f6d03 NC |
4545 | SV_COW_NEXT_SV_SET(dstr, SV_COW_NEXT_SV(sstr)); |
4546 | SV_COW_NEXT_SV_SET(sstr, dstr); | |
765f542d NC |
4547 | SvPV_set(dstr, SvPVX(sstr)); |
4548 | } else { | |
4549 | /* SvIsCOW_shared_hash */ | |
4550 | UV hash = SvUVX(sstr); | |
46187eeb NC |
4551 | DEBUG_C(PerlIO_printf(Perl_debug_log, |
4552 | "Copy on write: Sharing hash\n")); | |
765f542d NC |
4553 | SvPV_set(dstr, |
4554 | sharepvn(SvPVX(sstr), | |
4555 | (sflags & SVf_UTF8?-cur:cur), hash)); | |
607fa7f2 | 4556 | SvUV_set(dstr, hash); |
765f542d | 4557 | } |
87a1ef3d SP |
4558 | SvLEN_set(dstr, len); |
4559 | SvCUR_set(dstr, cur); | |
765f542d NC |
4560 | SvREADONLY_on(dstr); |
4561 | SvFAKE_on(dstr); | |
4562 | /* Relesase a global SV mutex. */ | |
4563 | } | |
4564 | else | |
4565 | #endif | |
4566 | { /* Passes the swipe test. */ | |
4567 | SvPV_set(dstr, SvPVX(sstr)); | |
4568 | SvLEN_set(dstr, SvLEN(sstr)); | |
4569 | SvCUR_set(dstr, SvCUR(sstr)); | |
4570 | ||
4571 | SvTEMP_off(dstr); | |
4572 | (void)SvOK_off(sstr); /* NOTE: nukes most SvFLAGS on sstr */ | |
4573 | SvPV_set(sstr, Nullch); | |
4574 | SvLEN_set(sstr, 0); | |
4575 | SvCUR_set(sstr, 0); | |
4576 | SvTEMP_off(sstr); | |
4577 | } | |
4578 | } | |
9aa983d2 | 4579 | if (sflags & SVf_UTF8) |
a7cb1f99 | 4580 | SvUTF8_on(dstr); |
79072805 | 4581 | /*SUPPRESS 560*/ |
8990e307 | 4582 | if (sflags & SVp_NOK) { |
3332b3c1 JH |
4583 | SvNOKp_on(dstr); |
4584 | if (sflags & SVf_NOK) | |
4585 | SvFLAGS(dstr) |= SVf_NOK; | |
9d6ce603 | 4586 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 | 4587 | } |
8990e307 | 4588 | if (sflags & SVp_IOK) { |
3332b3c1 JH |
4589 | (void)SvIOKp_on(dstr); |
4590 | if (sflags & SVf_IOK) | |
4591 | SvFLAGS(dstr) |= SVf_IOK; | |
2b1c7e3e | 4592 | if (sflags & SVf_IVisUV) |
25da4f38 | 4593 | SvIsUV_on(dstr); |
45977657 | 4594 | SvIV_set(dstr, SvIVX(sstr)); |
79072805 | 4595 | } |
92f0c265 | 4596 | if (SvVOK(sstr)) { |
7a5fa8a2 | 4597 | MAGIC *smg = mg_find(sstr,PERL_MAGIC_vstring); |
ece467f9 JP |
4598 | sv_magic(dstr, NULL, PERL_MAGIC_vstring, |
4599 | smg->mg_ptr, smg->mg_len); | |
439cb1c4 | 4600 | SvRMAGICAL_on(dstr); |
7a5fa8a2 | 4601 | } |
79072805 | 4602 | } |
8990e307 | 4603 | else if (sflags & SVp_IOK) { |
3332b3c1 JH |
4604 | if (sflags & SVf_IOK) |
4605 | (void)SvIOK_only(dstr); | |
4606 | else { | |
9cbac4c7 DM |
4607 | (void)SvOK_off(dstr); |
4608 | (void)SvIOKp_on(dstr); | |
3332b3c1 JH |
4609 | } |
4610 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ | |
2b1c7e3e | 4611 | if (sflags & SVf_IVisUV) |
25da4f38 | 4612 | SvIsUV_on(dstr); |
45977657 | 4613 | SvIV_set(dstr, SvIVX(sstr)); |
3332b3c1 JH |
4614 | if (sflags & SVp_NOK) { |
4615 | if (sflags & SVf_NOK) | |
4616 | (void)SvNOK_on(dstr); | |
4617 | else | |
4618 | (void)SvNOKp_on(dstr); | |
9d6ce603 | 4619 | SvNV_set(dstr, SvNVX(sstr)); |
3332b3c1 JH |
4620 | } |
4621 | } | |
4622 | else if (sflags & SVp_NOK) { | |
4623 | if (sflags & SVf_NOK) | |
4624 | (void)SvNOK_only(dstr); | |
4625 | else { | |
9cbac4c7 | 4626 | (void)SvOK_off(dstr); |
3332b3c1 JH |
4627 | SvNOKp_on(dstr); |
4628 | } | |
9d6ce603 | 4629 | SvNV_set(dstr, SvNVX(sstr)); |
79072805 LW |
4630 | } |
4631 | else { | |
20408e3c | 4632 | if (dtype == SVt_PVGV) { |
e476b1b5 | 4633 | if (ckWARN(WARN_MISC)) |
9014280d | 4634 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Undefined value assigned to typeglob"); |
20408e3c GS |
4635 | } |
4636 | else | |
4637 | (void)SvOK_off(dstr); | |
a0d0e21e | 4638 | } |
27c9684d AP |
4639 | if (SvTAINTED(sstr)) |
4640 | SvTAINT(dstr); | |
79072805 LW |
4641 | } |
4642 | ||
954c1994 GS |
4643 | /* |
4644 | =for apidoc sv_setsv_mg | |
4645 | ||
4646 | Like C<sv_setsv>, but also handles 'set' magic. | |
4647 | ||
4648 | =cut | |
4649 | */ | |
4650 | ||
79072805 | 4651 | void |
864dbfa3 | 4652 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
4653 | { |
4654 | sv_setsv(dstr,sstr); | |
4655 | SvSETMAGIC(dstr); | |
4656 | } | |
4657 | ||
ed252734 NC |
4658 | #ifdef PERL_COPY_ON_WRITE |
4659 | SV * | |
4660 | Perl_sv_setsv_cow(pTHX_ SV *dstr, SV *sstr) | |
4661 | { | |
4662 | STRLEN cur = SvCUR(sstr); | |
4663 | STRLEN len = SvLEN(sstr); | |
4664 | register char *new_pv; | |
4665 | ||
4666 | if (DEBUG_C_TEST) { | |
4667 | PerlIO_printf(Perl_debug_log, "Fast copy on write: %p -> %p\n", | |
4668 | sstr, dstr); | |
4669 | sv_dump(sstr); | |
4670 | if (dstr) | |
4671 | sv_dump(dstr); | |
4672 | } | |
4673 | ||
4674 | if (dstr) { | |
4675 | if (SvTHINKFIRST(dstr)) | |
4676 | sv_force_normal_flags(dstr, SV_COW_DROP_PV); | |
4677 | else if (SvPVX(dstr)) | |
4678 | Safefree(SvPVX(dstr)); | |
4679 | } | |
4680 | else | |
4681 | new_SV(dstr); | |
b988aa42 | 4682 | (void)SvUPGRADE (dstr, SVt_PVIV); |
ed252734 NC |
4683 | |
4684 | assert (SvPOK(sstr)); | |
4685 | assert (SvPOKp(sstr)); | |
4686 | assert (!SvIOK(sstr)); | |
4687 | assert (!SvIOKp(sstr)); | |
4688 | assert (!SvNOK(sstr)); | |
4689 | assert (!SvNOKp(sstr)); | |
4690 | ||
4691 | if (SvIsCOW(sstr)) { | |
4692 | ||
4693 | if (SvLEN(sstr) == 0) { | |
4694 | /* source is a COW shared hash key. */ | |
4695 | UV hash = SvUVX(sstr); | |
4696 | DEBUG_C(PerlIO_printf(Perl_debug_log, | |
4697 | "Fast copy on write: Sharing hash\n")); | |
607fa7f2 | 4698 | SvUV_set(dstr, hash); |
ed252734 NC |
4699 | new_pv = sharepvn(SvPVX(sstr), (SvUTF8(sstr)?-cur:cur), hash); |
4700 | goto common_exit; | |
4701 | } | |
4702 | SV_COW_NEXT_SV_SET(dstr, SV_COW_NEXT_SV(sstr)); | |
4703 | } else { | |
4704 | assert ((SvFLAGS(sstr) & CAN_COW_MASK) == CAN_COW_FLAGS); | |
b988aa42 | 4705 | (void)SvUPGRADE (sstr, SVt_PVIV); |
ed252734 NC |
4706 | SvREADONLY_on(sstr); |
4707 | SvFAKE_on(sstr); | |
4708 | DEBUG_C(PerlIO_printf(Perl_debug_log, | |
4709 | "Fast copy on write: Converting sstr to COW\n")); | |
4710 | SV_COW_NEXT_SV_SET(dstr, sstr); | |
4711 | } | |
4712 | SV_COW_NEXT_SV_SET(sstr, dstr); | |
4713 | new_pv = SvPVX(sstr); | |
4714 | ||
4715 | common_exit: | |
4716 | SvPV_set(dstr, new_pv); | |
4717 | SvFLAGS(dstr) = (SVt_PVIV|SVf_POK|SVp_POK|SVf_FAKE|SVf_READONLY); | |
4718 | if (SvUTF8(sstr)) | |
4719 | SvUTF8_on(dstr); | |
87a1ef3d SP |
4720 | SvLEN_set(dstr, len); |
4721 | SvCUR_set(dstr, cur); | |
ed252734 NC |
4722 | if (DEBUG_C_TEST) { |
4723 | sv_dump(dstr); | |
4724 | } | |
4725 | return dstr; | |
4726 | } | |
4727 | #endif | |
4728 | ||
954c1994 GS |
4729 | /* |
4730 | =for apidoc sv_setpvn | |
4731 | ||
4732 | Copies a string into an SV. The C<len> parameter indicates the number of | |
9e09f5f2 MHM |
4733 | bytes to be copied. If the C<ptr> argument is NULL the SV will become |
4734 | undefined. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
954c1994 GS |
4735 | |
4736 | =cut | |
4737 | */ | |
4738 | ||
ef50df4b | 4739 | void |
864dbfa3 | 4740 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 4741 | { |
c6f8c383 | 4742 | register char *dptr; |
22c522df | 4743 | |
765f542d | 4744 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4745 | if (!ptr) { |
a0d0e21e | 4746 | (void)SvOK_off(sv); |
463ee0b2 LW |
4747 | return; |
4748 | } | |
22c522df JH |
4749 | else { |
4750 | /* len is STRLEN which is unsigned, need to copy to signed */ | |
4751 | IV iv = len; | |
9c5ffd7c JH |
4752 | if (iv < 0) |
4753 | Perl_croak(aTHX_ "panic: sv_setpvn called with negative strlen"); | |
22c522df | 4754 | } |
6fc92669 | 4755 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4756 | |
79072805 | 4757 | SvGROW(sv, len + 1); |
c6f8c383 GA |
4758 | dptr = SvPVX(sv); |
4759 | Move(ptr,dptr,len,char); | |
4760 | dptr[len] = '\0'; | |
79072805 | 4761 | SvCUR_set(sv, len); |
1aa99e6b | 4762 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4763 | SvTAINT(sv); |
79072805 LW |
4764 | } |
4765 | ||
954c1994 GS |
4766 | /* |
4767 | =for apidoc sv_setpvn_mg | |
4768 | ||
4769 | Like C<sv_setpvn>, but also handles 'set' magic. | |
4770 | ||
4771 | =cut | |
4772 | */ | |
4773 | ||
79072805 | 4774 | void |
864dbfa3 | 4775 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
4776 | { |
4777 | sv_setpvn(sv,ptr,len); | |
4778 | SvSETMAGIC(sv); | |
4779 | } | |
4780 | ||
954c1994 GS |
4781 | /* |
4782 | =for apidoc sv_setpv | |
4783 | ||
4784 | Copies a string into an SV. The string must be null-terminated. Does not | |
4785 | handle 'set' magic. See C<sv_setpv_mg>. | |
4786 | ||
4787 | =cut | |
4788 | */ | |
4789 | ||
ef50df4b | 4790 | void |
864dbfa3 | 4791 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
4792 | { |
4793 | register STRLEN len; | |
4794 | ||
765f542d | 4795 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
463ee0b2 | 4796 | if (!ptr) { |
a0d0e21e | 4797 | (void)SvOK_off(sv); |
463ee0b2 LW |
4798 | return; |
4799 | } | |
79072805 | 4800 | len = strlen(ptr); |
6fc92669 | 4801 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 4802 | |
79072805 | 4803 | SvGROW(sv, len + 1); |
463ee0b2 | 4804 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 4805 | SvCUR_set(sv, len); |
1aa99e6b | 4806 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 LW |
4807 | SvTAINT(sv); |
4808 | } | |
4809 | ||
954c1994 GS |
4810 | /* |
4811 | =for apidoc sv_setpv_mg | |
4812 | ||
4813 | Like C<sv_setpv>, but also handles 'set' magic. | |
4814 | ||
4815 | =cut | |
4816 | */ | |
4817 | ||
463ee0b2 | 4818 | void |
864dbfa3 | 4819 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
4820 | { |
4821 | sv_setpv(sv,ptr); | |
4822 | SvSETMAGIC(sv); | |
4823 | } | |
4824 | ||
954c1994 GS |
4825 | /* |
4826 | =for apidoc sv_usepvn | |
4827 | ||
4828 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
1c846c1f | 4829 | stored inside the SV but sv_usepvn allows the SV to use an outside string. |
954c1994 GS |
4830 | The C<ptr> should point to memory that was allocated by C<malloc>. The |
4831 | string length, C<len>, must be supplied. This function will realloc the | |
4832 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
4833 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
4834 | See C<sv_usepvn_mg>. | |
4835 | ||
4836 | =cut | |
4837 | */ | |
4838 | ||
ef50df4b | 4839 | void |
864dbfa3 | 4840 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 4841 | { |
765f542d | 4842 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
c6f8c383 | 4843 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 4844 | if (!ptr) { |
a0d0e21e | 4845 | (void)SvOK_off(sv); |
463ee0b2 LW |
4846 | return; |
4847 | } | |
8bd4d4c5 NC |
4848 | if (SvPVX(sv)) |
4849 | SvPV_free(sv); | |
463ee0b2 | 4850 | Renew(ptr, len+1, char); |
f880fe2f | 4851 | SvPV_set(sv, ptr); |
463ee0b2 LW |
4852 | SvCUR_set(sv, len); |
4853 | SvLEN_set(sv, len+1); | |
4854 | *SvEND(sv) = '\0'; | |
1aa99e6b | 4855 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 4856 | SvTAINT(sv); |
79072805 LW |
4857 | } |
4858 | ||
954c1994 GS |
4859 | /* |
4860 | =for apidoc sv_usepvn_mg | |
4861 | ||
4862 | Like C<sv_usepvn>, but also handles 'set' magic. | |
4863 | ||
4864 | =cut | |
4865 | */ | |
4866 | ||
ef50df4b | 4867 | void |
864dbfa3 | 4868 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 4869 | { |
51c1089b | 4870 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
4871 | SvSETMAGIC(sv); |
4872 | } | |
4873 | ||
765f542d NC |
4874 | #ifdef PERL_COPY_ON_WRITE |
4875 | /* Need to do this *after* making the SV normal, as we need the buffer | |
4876 | pointer to remain valid until after we've copied it. If we let go too early, | |
4877 | another thread could invalidate it by unsharing last of the same hash key | |
4878 | (which it can do by means other than releasing copy-on-write Svs) | |
4879 | or by changing the other copy-on-write SVs in the loop. */ | |
4880 | STATIC void | |
4881 | S_sv_release_COW(pTHX_ register SV *sv, char *pvx, STRLEN cur, STRLEN len, | |
4882 | U32 hash, SV *after) | |
4883 | { | |
4884 | if (len) { /* this SV was SvIsCOW_normal(sv) */ | |
4885 | /* we need to find the SV pointing to us. */ | |
4886 | SV *current = SV_COW_NEXT_SV(after); | |
7a5fa8a2 | 4887 | |
765f542d NC |
4888 | if (current == sv) { |
4889 | /* The SV we point to points back to us (there were only two of us | |
4890 | in the loop.) | |
4891 | Hence other SV is no longer copy on write either. */ | |
4892 | SvFAKE_off(after); | |
4893 | SvREADONLY_off(after); | |
4894 | } else { | |
4895 | /* We need to follow the pointers around the loop. */ | |
4896 | SV *next; | |
4897 | while ((next = SV_COW_NEXT_SV(current)) != sv) { | |
4898 | assert (next); | |
4899 | current = next; | |
4900 | /* don't loop forever if the structure is bust, and we have | |
4901 | a pointer into a closed loop. */ | |
4902 | assert (current != after); | |
e419cbc5 | 4903 | assert (SvPVX(current) == pvx); |
765f542d NC |
4904 | } |
4905 | /* Make the SV before us point to the SV after us. */ | |
a29f6d03 | 4906 | SV_COW_NEXT_SV_SET(current, after); |
765f542d NC |
4907 | } |
4908 | } else { | |
4909 | unsharepvn(pvx, SvUTF8(sv) ? -(I32)cur : cur, hash); | |
4910 | } | |
4911 | } | |
4912 | ||
4913 | int | |
4914 | Perl_sv_release_IVX(pTHX_ register SV *sv) | |
4915 | { | |
4916 | if (SvIsCOW(sv)) | |
4917 | sv_force_normal_flags(sv, 0); | |
0c34ef67 MHM |
4918 | SvOOK_off(sv); |
4919 | return 0; | |
765f542d NC |
4920 | } |
4921 | #endif | |
645c22ef DM |
4922 | /* |
4923 | =for apidoc sv_force_normal_flags | |
4924 | ||
4925 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
4926 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
765f542d NC |
4927 | an xpvmg; if we're a copy-on-write scalar, this is the on-write time when |
4928 | we do the copy, and is also used locally. If C<SV_COW_DROP_PV> is set | |
4929 | then a copy-on-write scalar drops its PV buffer (if any) and becomes | |
4930 | SvPOK_off rather than making a copy. (Used where this scalar is about to be | |
d3050d9d | 4931 | set to some other value.) In addition, the C<flags> parameter gets passed to |
765f542d NC |
4932 | C<sv_unref_flags()> when unrefing. C<sv_force_normal> calls this function |
4933 | with flags set to 0. | |
645c22ef DM |
4934 | |
4935 | =cut | |
4936 | */ | |
4937 | ||
6fc92669 | 4938 | void |
840a7b70 | 4939 | Perl_sv_force_normal_flags(pTHX_ register SV *sv, U32 flags) |
0f15f207 | 4940 | { |
765f542d NC |
4941 | #ifdef PERL_COPY_ON_WRITE |
4942 | if (SvREADONLY(sv)) { | |
4943 | /* At this point I believe I should acquire a global SV mutex. */ | |
4944 | if (SvFAKE(sv)) { | |
4945 | char *pvx = SvPVX(sv); | |
4946 | STRLEN len = SvLEN(sv); | |
4947 | STRLEN cur = SvCUR(sv); | |
4948 | U32 hash = SvUVX(sv); | |
4949 | SV *next = SV_COW_NEXT_SV(sv); /* next COW sv in the loop. */ | |
46187eeb NC |
4950 | if (DEBUG_C_TEST) { |
4951 | PerlIO_printf(Perl_debug_log, | |
4952 | "Copy on write: Force normal %ld\n", | |
4953 | (long) flags); | |
e419cbc5 | 4954 | sv_dump(sv); |
46187eeb | 4955 | } |
765f542d NC |
4956 | SvFAKE_off(sv); |
4957 | SvREADONLY_off(sv); | |
4958 | /* This SV doesn't own the buffer, so need to New() a new one: */ | |
f880fe2f | 4959 | SvPV_set(sv, (char*)0); |
87a1ef3d | 4960 | SvLEN_set(sv, 0); |
765f542d NC |
4961 | if (flags & SV_COW_DROP_PV) { |
4962 | /* OK, so we don't need to copy our buffer. */ | |
4963 | SvPOK_off(sv); | |
4964 | } else { | |
4965 | SvGROW(sv, cur + 1); | |
4966 | Move(pvx,SvPVX(sv),cur,char); | |
87a1ef3d | 4967 | SvCUR_set(sv, cur); |
765f542d NC |
4968 | *SvEND(sv) = '\0'; |
4969 | } | |
e419cbc5 | 4970 | sv_release_COW(sv, pvx, cur, len, hash, next); |
46187eeb | 4971 | if (DEBUG_C_TEST) { |
e419cbc5 | 4972 | sv_dump(sv); |
46187eeb | 4973 | } |
765f542d | 4974 | } |
923e4eb5 | 4975 | else if (IN_PERL_RUNTIME) |
765f542d NC |
4976 | Perl_croak(aTHX_ PL_no_modify); |
4977 | /* At this point I believe that I can drop the global SV mutex. */ | |
4978 | } | |
4979 | #else | |
2213622d | 4980 | if (SvREADONLY(sv)) { |
1c846c1f NIS |
4981 | if (SvFAKE(sv)) { |
4982 | char *pvx = SvPVX(sv); | |
5c98da1c | 4983 | int is_utf8 = SvUTF8(sv); |
1c846c1f NIS |
4984 | STRLEN len = SvCUR(sv); |
4985 | U32 hash = SvUVX(sv); | |
10bcdfd6 NC |
4986 | SvFAKE_off(sv); |
4987 | SvREADONLY_off(sv); | |
f880fe2f | 4988 | SvPV_set(sv, (char*)0); |
b162af07 | 4989 | SvLEN_set(sv, 0); |
1c846c1f NIS |
4990 | SvGROW(sv, len + 1); |
4991 | Move(pvx,SvPVX(sv),len,char); | |
4992 | *SvEND(sv) = '\0'; | |
5c98da1c | 4993 | unsharepvn(pvx, is_utf8 ? -(I32)len : len, hash); |
1c846c1f | 4994 | } |
923e4eb5 | 4995 | else if (IN_PERL_RUNTIME) |
cea2e8a9 | 4996 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4997 | } |
765f542d | 4998 | #endif |
2213622d | 4999 | if (SvROK(sv)) |
840a7b70 | 5000 | sv_unref_flags(sv, flags); |
6fc92669 GS |
5001 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
5002 | sv_unglob(sv); | |
0f15f207 | 5003 | } |
1c846c1f | 5004 | |
645c22ef DM |
5005 | /* |
5006 | =for apidoc sv_force_normal | |
5007 | ||
5008 | Undo various types of fakery on an SV: if the PV is a shared string, make | |
5009 | a private copy; if we're a ref, stop refing; if we're a glob, downgrade to | |
5010 | an xpvmg. See also C<sv_force_normal_flags>. | |
5011 | ||
5012 | =cut | |
5013 | */ | |
5014 | ||
840a7b70 IZ |
5015 | void |
5016 | Perl_sv_force_normal(pTHX_ register SV *sv) | |
5017 | { | |
5018 | sv_force_normal_flags(sv, 0); | |
5019 | } | |
5020 | ||
954c1994 GS |
5021 | /* |
5022 | =for apidoc sv_chop | |
5023 | ||
1c846c1f | 5024 | Efficient removal of characters from the beginning of the string buffer. |
954c1994 GS |
5025 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside |
5026 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
645c22ef | 5027 | string. Uses the "OOK hack". |
31869a79 AE |
5028 | Beware: after this function returns, C<ptr> and SvPVX(sv) may no longer |
5029 | refer to the same chunk of data. | |
954c1994 GS |
5030 | |
5031 | =cut | |
5032 | */ | |
5033 | ||
79072805 | 5034 | void |
645c22ef | 5035 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) |
79072805 LW |
5036 | { |
5037 | register STRLEN delta; | |
a0d0e21e | 5038 | if (!ptr || !SvPOKp(sv)) |
79072805 | 5039 | return; |
31869a79 | 5040 | delta = ptr - SvPVX(sv); |
2213622d | 5041 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
5042 | if (SvTYPE(sv) < SVt_PVIV) |
5043 | sv_upgrade(sv,SVt_PVIV); | |
5044 | ||
5045 | if (!SvOOK(sv)) { | |
50483b2c JD |
5046 | if (!SvLEN(sv)) { /* make copy of shared string */ |
5047 | char *pvx = SvPVX(sv); | |
5048 | STRLEN len = SvCUR(sv); | |
5049 | SvGROW(sv, len + 1); | |
5050 | Move(pvx,SvPVX(sv),len,char); | |
5051 | *SvEND(sv) = '\0'; | |
5052 | } | |
45977657 | 5053 | SvIV_set(sv, 0); |
a4bfb290 AB |
5054 | /* Same SvOOK_on but SvOOK_on does a SvIOK_off |
5055 | and we do that anyway inside the SvNIOK_off | |
5056 | */ | |
7a5fa8a2 | 5057 | SvFLAGS(sv) |= SVf_OOK; |
79072805 | 5058 | } |
a4bfb290 | 5059 | SvNIOK_off(sv); |
b162af07 SP |
5060 | SvLEN_set(sv, SvLEN(sv) - delta); |
5061 | SvCUR_set(sv, SvCUR(sv) - delta); | |
f880fe2f | 5062 | SvPV_set(sv, SvPVX(sv) + delta); |
45977657 | 5063 | SvIV_set(sv, SvIVX(sv) + delta); |
79072805 LW |
5064 | } |
5065 | ||
09540bc3 JH |
5066 | /* sv_catpvn() is now a macro using Perl_sv_catpvn_flags(); |
5067 | * this function provided for binary compatibility only | |
5068 | */ | |
5069 | ||
5070 | void | |
5071 | Perl_sv_catpvn(pTHX_ SV *dsv, const char* sstr, STRLEN slen) | |
5072 | { | |
5073 | sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC); | |
5074 | } | |
5075 | ||
954c1994 GS |
5076 | /* |
5077 | =for apidoc sv_catpvn | |
5078 | ||
5079 | Concatenates the string onto the end of the string which is in the SV. The | |
1e54db1a JH |
5080 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
5081 | status set, then the bytes appended should be valid UTF-8. | |
d5ce4a7c | 5082 | Handles 'get' magic, but not 'set' magic. See C<sv_catpvn_mg>. |
954c1994 | 5083 | |
8d6d96c1 HS |
5084 | =for apidoc sv_catpvn_flags |
5085 | ||
5086 | Concatenates the string onto the end of the string which is in the SV. The | |
1e54db1a JH |
5087 | C<len> indicates number of bytes to copy. If the SV has the UTF-8 |
5088 | status set, then the bytes appended should be valid UTF-8. | |
8d6d96c1 HS |
5089 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<dsv> if |
5090 | appropriate, else not. C<sv_catpvn> and C<sv_catpvn_nomg> are implemented | |
5091 | in terms of this function. | |
5092 | ||
5093 | =cut | |
5094 | */ | |
5095 | ||
5096 | void | |
5097 | Perl_sv_catpvn_flags(pTHX_ register SV *dsv, register const char *sstr, register STRLEN slen, I32 flags) | |
5098 | { | |
5099 | STRLEN dlen; | |
5100 | char *dstr; | |
5101 | ||
5102 | dstr = SvPV_force_flags(dsv, dlen, flags); | |
5103 | SvGROW(dsv, dlen + slen + 1); | |
5104 | if (sstr == dstr) | |
5105 | sstr = SvPVX(dsv); | |
5106 | Move(sstr, SvPVX(dsv) + dlen, slen, char); | |
b162af07 | 5107 | SvCUR_set(dsv, SvCUR(dsv) + slen); |
8d6d96c1 HS |
5108 | *SvEND(dsv) = '\0'; |
5109 | (void)SvPOK_only_UTF8(dsv); /* validate pointer */ | |
5110 | SvTAINT(dsv); | |
79072805 LW |
5111 | } |
5112 | ||
954c1994 GS |
5113 | /* |
5114 | =for apidoc sv_catpvn_mg | |
5115 | ||
5116 | Like C<sv_catpvn>, but also handles 'set' magic. | |
5117 | ||
5118 | =cut | |
5119 | */ | |
5120 | ||
79072805 | 5121 | void |
864dbfa3 | 5122 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
5123 | { |
5124 | sv_catpvn(sv,ptr,len); | |
5125 | SvSETMAGIC(sv); | |
5126 | } | |
5127 | ||
09540bc3 JH |
5128 | /* sv_catsv() is now a macro using Perl_sv_catsv_flags(); |
5129 | * this function provided for binary compatibility only | |
5130 | */ | |
5131 | ||
5132 | void | |
5133 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) | |
5134 | { | |
5135 | sv_catsv_flags(dstr, sstr, SV_GMAGIC); | |
5136 | } | |
5137 | ||
954c1994 GS |
5138 | /* |
5139 | =for apidoc sv_catsv | |
5140 | ||
13e8c8e3 JH |
5141 | Concatenates the string from SV C<ssv> onto the end of the string in |
5142 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. Handles 'get' magic, but | |
5143 | not 'set' magic. See C<sv_catsv_mg>. | |
954c1994 | 5144 | |
8d6d96c1 HS |
5145 | =for apidoc sv_catsv_flags |
5146 | ||
5147 | Concatenates the string from SV C<ssv> onto the end of the string in | |
5148 | SV C<dsv>. Modifies C<dsv> but not C<ssv>. If C<flags> has C<SV_GMAGIC> | |
5149 | bit set, will C<mg_get> on the SVs if appropriate, else not. C<sv_catsv> | |
5150 | and C<sv_catsv_nomg> are implemented in terms of this function. | |
5151 | ||
5152 | =cut */ | |
5153 | ||
ef50df4b | 5154 | void |
8d6d96c1 | 5155 | Perl_sv_catsv_flags(pTHX_ SV *dsv, register SV *ssv, I32 flags) |
79072805 | 5156 | { |
13e8c8e3 JH |
5157 | char *spv; |
5158 | STRLEN slen; | |
46199a12 | 5159 | if (!ssv) |
79072805 | 5160 | return; |
46199a12 | 5161 | if ((spv = SvPV(ssv, slen))) { |
4fd84b44 AD |
5162 | /* sutf8 and dutf8 were type bool, but under USE_ITHREADS, |
5163 | gcc version 2.95.2 20000220 (Debian GNU/Linux) for | |
8cf8f3d1 NIS |
5164 | Linux xxx 2.2.17 on sparc64 with gcc -O2, we erroneously |
5165 | get dutf8 = 0x20000000, (i.e. SVf_UTF8) even though | |
4fd84b44 AD |
5166 | dsv->sv_flags doesn't have that bit set. |
5167 | Andy Dougherty 12 Oct 2001 | |
5168 | */ | |
5169 | I32 sutf8 = DO_UTF8(ssv); | |
5170 | I32 dutf8; | |
13e8c8e3 | 5171 | |
8d6d96c1 HS |
5172 | if (SvGMAGICAL(dsv) && (flags & SV_GMAGIC)) |
5173 | mg_get(dsv); | |
5174 | dutf8 = DO_UTF8(dsv); | |
5175 | ||
5176 | if (dutf8 != sutf8) { | |
13e8c8e3 | 5177 | if (dutf8) { |
46199a12 | 5178 | /* Not modifying source SV, so taking a temporary copy. */ |
8d6d96c1 | 5179 | SV* csv = sv_2mortal(newSVpvn(spv, slen)); |
13e8c8e3 | 5180 | |
46199a12 | 5181 | sv_utf8_upgrade(csv); |
8d6d96c1 | 5182 | spv = SvPV(csv, slen); |
13e8c8e3 | 5183 | } |
8d6d96c1 HS |
5184 | else |
5185 | sv_utf8_upgrade_nomg(dsv); | |
e84ff256 | 5186 | } |
8d6d96c1 | 5187 | sv_catpvn_nomg(dsv, spv, slen); |
560a288e | 5188 | } |
79072805 LW |
5189 | } |
5190 | ||
954c1994 GS |
5191 | /* |
5192 | =for apidoc sv_catsv_mg | |
5193 | ||
5194 | Like C<sv_catsv>, but also handles 'set' magic. | |
5195 | ||
5196 | =cut | |
5197 | */ | |
5198 | ||
79072805 | 5199 | void |
46199a12 | 5200 | Perl_sv_catsv_mg(pTHX_ SV *dsv, register SV *ssv) |
ef50df4b | 5201 | { |
46199a12 JH |
5202 | sv_catsv(dsv,ssv); |
5203 | SvSETMAGIC(dsv); | |
ef50df4b GS |
5204 | } |
5205 | ||
954c1994 GS |
5206 | /* |
5207 | =for apidoc sv_catpv | |
5208 | ||
5209 | Concatenates the string onto the end of the string which is in the SV. | |
1e54db1a JH |
5210 | If the SV has the UTF-8 status set, then the bytes appended should be |
5211 | valid UTF-8. Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
954c1994 | 5212 | |
d5ce4a7c | 5213 | =cut */ |
954c1994 | 5214 | |
ef50df4b | 5215 | void |
0c981600 | 5216 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
5217 | { |
5218 | register STRLEN len; | |
463ee0b2 | 5219 | STRLEN tlen; |
748a9306 | 5220 | char *junk; |
79072805 | 5221 | |
0c981600 | 5222 | if (!ptr) |
79072805 | 5223 | return; |
748a9306 | 5224 | junk = SvPV_force(sv, tlen); |
0c981600 | 5225 | len = strlen(ptr); |
463ee0b2 | 5226 | SvGROW(sv, tlen + len + 1); |
0c981600 JH |
5227 | if (ptr == junk) |
5228 | ptr = SvPVX(sv); | |
5229 | Move(ptr,SvPVX(sv)+tlen,len+1,char); | |
b162af07 | 5230 | SvCUR_set(sv, SvCUR(sv) + len); |
d41ff1b8 | 5231 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 5232 | SvTAINT(sv); |
79072805 LW |
5233 | } |
5234 | ||
954c1994 GS |
5235 | /* |
5236 | =for apidoc sv_catpv_mg | |
5237 | ||
5238 | Like C<sv_catpv>, but also handles 'set' magic. | |
5239 | ||
5240 | =cut | |
5241 | */ | |
5242 | ||
ef50df4b | 5243 | void |
0c981600 | 5244 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 5245 | { |
0c981600 | 5246 | sv_catpv(sv,ptr); |
ef50df4b GS |
5247 | SvSETMAGIC(sv); |
5248 | } | |
5249 | ||
645c22ef DM |
5250 | /* |
5251 | =for apidoc newSV | |
5252 | ||
5253 | Create a new null SV, or if len > 0, create a new empty SVt_PV type SV | |
5254 | with an initial PV allocation of len+1. Normally accessed via the C<NEWSV> | |
5255 | macro. | |
5256 | ||
5257 | =cut | |
5258 | */ | |
5259 | ||
79072805 | 5260 | SV * |
864dbfa3 | 5261 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
5262 | { |
5263 | register SV *sv; | |
1c846c1f | 5264 | |
4561caa4 | 5265 | new_SV(sv); |
79072805 LW |
5266 | if (len) { |
5267 | sv_upgrade(sv, SVt_PV); | |
5268 | SvGROW(sv, len + 1); | |
5269 | } | |
5270 | return sv; | |
5271 | } | |
954c1994 | 5272 | /* |
92110913 | 5273 | =for apidoc sv_magicext |
954c1994 | 5274 | |
68795e93 | 5275 | Adds magic to an SV, upgrading it if necessary. Applies the |
2d8d5d5a | 5276 | supplied vtable and returns a pointer to the magic added. |
92110913 | 5277 | |
2d8d5d5a SH |
5278 | Note that C<sv_magicext> will allow things that C<sv_magic> will not. |
5279 | In particular, you can add magic to SvREADONLY SVs, and add more than | |
5280 | one instance of the same 'how'. | |
645c22ef | 5281 | |
2d8d5d5a SH |
5282 | If C<namlen> is greater than zero then a C<savepvn> I<copy> of C<name> is |
5283 | stored, if C<namlen> is zero then C<name> is stored as-is and - as another | |
5284 | special case - if C<(name && namlen == HEf_SVKEY)> then C<name> is assumed | |
5285 | to contain an C<SV*> and is stored as-is with its REFCNT incremented. | |
92110913 | 5286 | |
2d8d5d5a | 5287 | (This is now used as a subroutine by C<sv_magic>.) |
954c1994 GS |
5288 | |
5289 | =cut | |
5290 | */ | |
92110913 | 5291 | MAGIC * |
e1ec3a88 | 5292 | Perl_sv_magicext(pTHX_ SV* sv, SV* obj, int how, const MGVTBL *vtable, |
92110913 | 5293 | const char* name, I32 namlen) |
79072805 LW |
5294 | { |
5295 | MAGIC* mg; | |
68795e93 | 5296 | |
92110913 NIS |
5297 | if (SvTYPE(sv) < SVt_PVMG) { |
5298 | (void)SvUPGRADE(sv, SVt_PVMG); | |
463ee0b2 | 5299 | } |
79072805 LW |
5300 | Newz(702,mg, 1, MAGIC); |
5301 | mg->mg_moremagic = SvMAGIC(sv); | |
b162af07 | 5302 | SvMAGIC_set(sv, mg); |
75f9d97a | 5303 | |
05f95b08 SB |
5304 | /* Sometimes a magic contains a reference loop, where the sv and |
5305 | object refer to each other. To prevent a reference loop that | |
5306 | would prevent such objects being freed, we look for such loops | |
5307 | and if we find one we avoid incrementing the object refcount. | |
87f0b213 JH |
5308 | |
5309 | Note we cannot do this to avoid self-tie loops as intervening RV must | |
b5ccf5f2 | 5310 | have its REFCNT incremented to keep it in existence. |
87f0b213 JH |
5311 | |
5312 | */ | |
14befaf4 DM |
5313 | if (!obj || obj == sv || |
5314 | how == PERL_MAGIC_arylen || | |
5315 | how == PERL_MAGIC_qr || | |
75f9d97a JH |
5316 | (SvTYPE(obj) == SVt_PVGV && |
5317 | (GvSV(obj) == sv || GvHV(obj) == (HV*)sv || GvAV(obj) == (AV*)sv || | |
5318 | GvCV(obj) == (CV*)sv || GvIOp(obj) == (IO*)sv || | |
2628be26 | 5319 | GvFORM(obj) == (CV*)sv))) |
75f9d97a | 5320 | { |
8990e307 | 5321 | mg->mg_obj = obj; |
75f9d97a | 5322 | } |
85e6fe83 | 5323 | else { |
8990e307 | 5324 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
5325 | mg->mg_flags |= MGf_REFCOUNTED; |
5326 | } | |
b5ccf5f2 YST |
5327 | |
5328 | /* Normal self-ties simply pass a null object, and instead of | |
5329 | using mg_obj directly, use the SvTIED_obj macro to produce a | |
5330 | new RV as needed. For glob "self-ties", we are tieing the PVIO | |
5331 | with an RV obj pointing to the glob containing the PVIO. In | |
5332 | this case, to avoid a reference loop, we need to weaken the | |
5333 | reference. | |
5334 | */ | |
5335 | ||
5336 | if (how == PERL_MAGIC_tiedscalar && SvTYPE(sv) == SVt_PVIO && | |
5337 | obj && SvROK(obj) && GvIO(SvRV(obj)) == (IO*)sv) | |
5338 | { | |
5339 | sv_rvweaken(obj); | |
5340 | } | |
5341 | ||
79072805 | 5342 | mg->mg_type = how; |
565764a8 | 5343 | mg->mg_len = namlen; |
9cbac4c7 | 5344 | if (name) { |
92110913 | 5345 | if (namlen > 0) |
1edc1566 | 5346 | mg->mg_ptr = savepvn(name, namlen); |
c6ee37c5 | 5347 | else if (namlen == HEf_SVKEY) |
1edc1566 | 5348 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
68795e93 | 5349 | else |
92110913 | 5350 | mg->mg_ptr = (char *) name; |
9cbac4c7 | 5351 | } |
92110913 | 5352 | mg->mg_virtual = vtable; |
68795e93 | 5353 | |
92110913 NIS |
5354 | mg_magical(sv); |
5355 | if (SvGMAGICAL(sv)) | |
5356 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
5357 | return mg; | |
5358 | } | |
5359 | ||
5360 | /* | |
5361 | =for apidoc sv_magic | |
1c846c1f | 5362 | |
92110913 NIS |
5363 | Adds magic to an SV. First upgrades C<sv> to type C<SVt_PVMG> if necessary, |
5364 | then adds a new magic item of type C<how> to the head of the magic list. | |
5365 | ||
2d8d5d5a SH |
5366 | See C<sv_magicext> (which C<sv_magic> now calls) for a description of the |
5367 | handling of the C<name> and C<namlen> arguments. | |
5368 | ||
4509d3fb SB |
5369 | You need to use C<sv_magicext> to add magic to SvREADONLY SVs and also |
5370 | to add more than one instance of the same 'how'. | |
5371 | ||
92110913 NIS |
5372 | =cut |
5373 | */ | |
5374 | ||
5375 | void | |
5376 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) | |
68795e93 | 5377 | { |
e1ec3a88 | 5378 | const MGVTBL *vtable = 0; |
92110913 | 5379 | MAGIC* mg; |
92110913 | 5380 | |
765f542d NC |
5381 | #ifdef PERL_COPY_ON_WRITE |
5382 | if (SvIsCOW(sv)) | |
5383 | sv_force_normal_flags(sv, 0); | |
5384 | #endif | |
92110913 | 5385 | if (SvREADONLY(sv)) { |
923e4eb5 | 5386 | if (IN_PERL_RUNTIME |
92110913 NIS |
5387 | && how != PERL_MAGIC_regex_global |
5388 | && how != PERL_MAGIC_bm | |
5389 | && how != PERL_MAGIC_fm | |
5390 | && how != PERL_MAGIC_sv | |
e6469971 | 5391 | && how != PERL_MAGIC_backref |
92110913 NIS |
5392 | ) |
5393 | { | |
5394 | Perl_croak(aTHX_ PL_no_modify); | |
5395 | } | |
5396 | } | |
5397 | if (SvMAGICAL(sv) || (how == PERL_MAGIC_taint && SvTYPE(sv) >= SVt_PVMG)) { | |
5398 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { | |
68795e93 NIS |
5399 | /* sv_magic() refuses to add a magic of the same 'how' as an |
5400 | existing one | |
92110913 NIS |
5401 | */ |
5402 | if (how == PERL_MAGIC_taint) | |
5403 | mg->mg_len |= 1; | |
5404 | return; | |
5405 | } | |
5406 | } | |
68795e93 | 5407 | |
79072805 | 5408 | switch (how) { |
14befaf4 | 5409 | case PERL_MAGIC_sv: |
92110913 | 5410 | vtable = &PL_vtbl_sv; |
79072805 | 5411 | break; |
14befaf4 | 5412 | case PERL_MAGIC_overload: |
92110913 | 5413 | vtable = &PL_vtbl_amagic; |
a0d0e21e | 5414 | break; |
14befaf4 | 5415 | case PERL_MAGIC_overload_elem: |
92110913 | 5416 | vtable = &PL_vtbl_amagicelem; |
a0d0e21e | 5417 | break; |
14befaf4 | 5418 | case PERL_MAGIC_overload_table: |
92110913 | 5419 | vtable = &PL_vtbl_ovrld; |
a0d0e21e | 5420 | break; |
14befaf4 | 5421 | case PERL_MAGIC_bm: |
92110913 | 5422 | vtable = &PL_vtbl_bm; |
79072805 | 5423 | break; |
14befaf4 | 5424 | case PERL_MAGIC_regdata: |
92110913 | 5425 | vtable = &PL_vtbl_regdata; |
6cef1e77 | 5426 | break; |
14befaf4 | 5427 | case PERL_MAGIC_regdatum: |
92110913 | 5428 | vtable = &PL_vtbl_regdatum; |
6cef1e77 | 5429 | break; |
14befaf4 | 5430 | case PERL_MAGIC_env: |
92110913 | 5431 | vtable = &PL_vtbl_env; |
79072805 | 5432 | break; |
14befaf4 | 5433 | case PERL_MAGIC_fm: |
92110913 | 5434 | vtable = &PL_vtbl_fm; |
55497cff | 5435 | break; |
14befaf4 | 5436 | case PERL_MAGIC_envelem: |
92110913 | 5437 | vtable = &PL_vtbl_envelem; |
79072805 | 5438 | break; |
14befaf4 | 5439 | case PERL_MAGIC_regex_global: |
92110913 | 5440 | vtable = &PL_vtbl_mglob; |
93a17b20 | 5441 | break; |
14befaf4 | 5442 | case PERL_MAGIC_isa: |
92110913 | 5443 | vtable = &PL_vtbl_isa; |
463ee0b2 | 5444 | break; |
14befaf4 | 5445 | case PERL_MAGIC_isaelem: |
92110913 | 5446 | vtable = &PL_vtbl_isaelem; |
463ee0b2 | 5447 | break; |
14befaf4 | 5448 | case PERL_MAGIC_nkeys: |
92110913 | 5449 | vtable = &PL_vtbl_nkeys; |
16660edb | 5450 | break; |
14befaf4 | 5451 | case PERL_MAGIC_dbfile: |
92110913 | 5452 | vtable = 0; |
93a17b20 | 5453 | break; |
14befaf4 | 5454 | case PERL_MAGIC_dbline: |
92110913 | 5455 | vtable = &PL_vtbl_dbline; |
79072805 | 5456 | break; |
36477c24 | 5457 | #ifdef USE_LOCALE_COLLATE |
14befaf4 | 5458 | case PERL_MAGIC_collxfrm: |
92110913 | 5459 | vtable = &PL_vtbl_collxfrm; |
bbce6d69 | 5460 | break; |
36477c24 | 5461 | #endif /* USE_LOCALE_COLLATE */ |
14befaf4 | 5462 | case PERL_MAGIC_tied: |
92110913 | 5463 | vtable = &PL_vtbl_pack; |
463ee0b2 | 5464 | break; |
14befaf4 DM |
5465 | case PERL_MAGIC_tiedelem: |
5466 | case PERL_MAGIC_tiedscalar: | |
92110913 | 5467 | vtable = &PL_vtbl_packelem; |
463ee0b2 | 5468 | break; |
14befaf4 | 5469 | case PERL_MAGIC_qr: |
92110913 | 5470 | vtable = &PL_vtbl_regexp; |
c277df42 | 5471 | break; |
14befaf4 | 5472 | case PERL_MAGIC_sig: |
92110913 | 5473 | vtable = &PL_vtbl_sig; |
79072805 | 5474 | break; |
14befaf4 | 5475 | case PERL_MAGIC_sigelem: |
92110913 | 5476 | vtable = &PL_vtbl_sigelem; |
79072805 | 5477 | break; |
14befaf4 | 5478 | case PERL_MAGIC_taint: |
92110913 | 5479 | vtable = &PL_vtbl_taint; |
463ee0b2 | 5480 | break; |
14befaf4 | 5481 | case PERL_MAGIC_uvar: |
92110913 | 5482 | vtable = &PL_vtbl_uvar; |
79072805 | 5483 | break; |
14befaf4 | 5484 | case PERL_MAGIC_vec: |
92110913 | 5485 | vtable = &PL_vtbl_vec; |
79072805 | 5486 | break; |
ece467f9 JP |
5487 | case PERL_MAGIC_vstring: |
5488 | vtable = 0; | |
5489 | break; | |
7e8c5dac HS |
5490 | case PERL_MAGIC_utf8: |
5491 | vtable = &PL_vtbl_utf8; | |
5492 | break; | |
14befaf4 | 5493 | case PERL_MAGIC_substr: |
92110913 | 5494 | vtable = &PL_vtbl_substr; |
79072805 | 5495 | break; |
14befaf4 | 5496 | case PERL_MAGIC_defelem: |
92110913 | 5497 | vtable = &PL_vtbl_defelem; |
5f05dabc | 5498 | break; |
14befaf4 | 5499 | case PERL_MAGIC_glob: |
92110913 | 5500 | vtable = &PL_vtbl_glob; |
79072805 | 5501 | break; |
14befaf4 | 5502 | case PERL_MAGIC_arylen: |
92110913 | 5503 | vtable = &PL_vtbl_arylen; |
79072805 | 5504 | break; |
14befaf4 | 5505 | case PERL_MAGIC_pos: |
92110913 | 5506 | vtable = &PL_vtbl_pos; |
a0d0e21e | 5507 | break; |
14befaf4 | 5508 | case PERL_MAGIC_backref: |
92110913 | 5509 | vtable = &PL_vtbl_backref; |
810b8aa5 | 5510 | break; |
14befaf4 DM |
5511 | case PERL_MAGIC_ext: |
5512 | /* Reserved for use by extensions not perl internals. */ | |
4633a7c4 LW |
5513 | /* Useful for attaching extension internal data to perl vars. */ |
5514 | /* Note that multiple extensions may clash if magical scalars */ | |
5515 | /* etc holding private data from one are passed to another. */ | |
a0d0e21e | 5516 | break; |
79072805 | 5517 | default: |
14befaf4 | 5518 | Perl_croak(aTHX_ "Don't know how to handle magic of type \\%o", how); |
463ee0b2 | 5519 | } |
68795e93 | 5520 | |
92110913 | 5521 | /* Rest of work is done else where */ |
27da23d5 | 5522 | mg = sv_magicext(sv,obj,how,(MGVTBL*)vtable,name,namlen); |
68795e93 | 5523 | |
92110913 NIS |
5524 | switch (how) { |
5525 | case PERL_MAGIC_taint: | |
5526 | mg->mg_len = 1; | |
5527 | break; | |
5528 | case PERL_MAGIC_ext: | |
5529 | case PERL_MAGIC_dbfile: | |
5530 | SvRMAGICAL_on(sv); | |
5531 | break; | |
5532 | } | |
463ee0b2 LW |
5533 | } |
5534 | ||
c461cf8f JH |
5535 | /* |
5536 | =for apidoc sv_unmagic | |
5537 | ||
645c22ef | 5538 | Removes all magic of type C<type> from an SV. |
c461cf8f JH |
5539 | |
5540 | =cut | |
5541 | */ | |
5542 | ||
463ee0b2 | 5543 | int |
864dbfa3 | 5544 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
5545 | { |
5546 | MAGIC* mg; | |
5547 | MAGIC** mgp; | |
91bba347 | 5548 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
5549 | return 0; |
5550 | mgp = &SvMAGIC(sv); | |
5551 | for (mg = *mgp; mg; mg = *mgp) { | |
5552 | if (mg->mg_type == type) { | |
e1ec3a88 | 5553 | const MGVTBL* const vtbl = mg->mg_virtual; |
463ee0b2 | 5554 | *mgp = mg->mg_moremagic; |
1d7c1841 | 5555 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 5556 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
14befaf4 | 5557 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
92110913 | 5558 | if (mg->mg_len > 0) |
1edc1566 | 5559 | Safefree(mg->mg_ptr); |
565764a8 | 5560 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 5561 | SvREFCNT_dec((SV*)mg->mg_ptr); |
7e8c5dac HS |
5562 | else if (mg->mg_type == PERL_MAGIC_utf8 && mg->mg_ptr) |
5563 | Safefree(mg->mg_ptr); | |
9cbac4c7 | 5564 | } |
a0d0e21e LW |
5565 | if (mg->mg_flags & MGf_REFCOUNTED) |
5566 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
5567 | Safefree(mg); |
5568 | } | |
5569 | else | |
5570 | mgp = &mg->mg_moremagic; | |
79072805 | 5571 | } |
91bba347 | 5572 | if (!SvMAGIC(sv)) { |
463ee0b2 | 5573 | SvMAGICAL_off(sv); |
06759ea0 | 5574 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
5575 | } |
5576 | ||
5577 | return 0; | |
79072805 LW |
5578 | } |
5579 | ||
c461cf8f JH |
5580 | /* |
5581 | =for apidoc sv_rvweaken | |
5582 | ||
645c22ef DM |
5583 | Weaken a reference: set the C<SvWEAKREF> flag on this RV; give the |
5584 | referred-to SV C<PERL_MAGIC_backref> magic if it hasn't already; and | |
5585 | push a back-reference to this RV onto the array of backreferences | |
5586 | associated with that magic. | |
c461cf8f JH |
5587 | |
5588 | =cut | |
5589 | */ | |
5590 | ||
810b8aa5 | 5591 | SV * |
864dbfa3 | 5592 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
5593 | { |
5594 | SV *tsv; | |
5595 | if (!SvOK(sv)) /* let undefs pass */ | |
5596 | return sv; | |
5597 | if (!SvROK(sv)) | |
cea2e8a9 | 5598 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 | 5599 | else if (SvWEAKREF(sv)) { |
810b8aa5 | 5600 | if (ckWARN(WARN_MISC)) |
9014280d | 5601 | Perl_warner(aTHX_ packWARN(WARN_MISC), "Reference is already weak"); |
810b8aa5 GS |
5602 | return sv; |
5603 | } | |
5604 | tsv = SvRV(sv); | |
5605 | sv_add_backref(tsv, sv); | |
5606 | SvWEAKREF_on(sv); | |
1c846c1f | 5607 | SvREFCNT_dec(tsv); |
810b8aa5 GS |
5608 | return sv; |
5609 | } | |
5610 | ||
645c22ef DM |
5611 | /* Give tsv backref magic if it hasn't already got it, then push a |
5612 | * back-reference to sv onto the array associated with the backref magic. | |
5613 | */ | |
5614 | ||
810b8aa5 | 5615 | STATIC void |
cea2e8a9 | 5616 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
5617 | { |
5618 | AV *av; | |
5619 | MAGIC *mg; | |
14befaf4 | 5620 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, PERL_MAGIC_backref))) |
810b8aa5 GS |
5621 | av = (AV*)mg->mg_obj; |
5622 | else { | |
5623 | av = newAV(); | |
14befaf4 | 5624 | sv_magic(tsv, (SV*)av, PERL_MAGIC_backref, NULL, 0); |
d99b02a1 DM |
5625 | /* av now has a refcnt of 2, which avoids it getting freed |
5626 | * before us during global cleanup. The extra ref is removed | |
5627 | * by magic_killbackrefs() when tsv is being freed */ | |
810b8aa5 | 5628 | } |
d91d49e8 | 5629 | if (AvFILLp(av) >= AvMAX(av)) { |
fdc9a813 | 5630 | I32 i; |
d91d49e8 | 5631 | SV **svp = AvARRAY(av); |
fdc9a813 AE |
5632 | for (i = AvFILLp(av); i >= 0; i--) |
5633 | if (!svp[i]) { | |
d91d49e8 MM |
5634 | svp[i] = sv; /* reuse the slot */ |
5635 | return; | |
5636 | } | |
d91d49e8 MM |
5637 | av_extend(av, AvFILLp(av)+1); |
5638 | } | |
5639 | AvARRAY(av)[++AvFILLp(av)] = sv; /* av_push() */ | |
810b8aa5 GS |
5640 | } |
5641 | ||
645c22ef DM |
5642 | /* delete a back-reference to ourselves from the backref magic associated |
5643 | * with the SV we point to. | |
5644 | */ | |
5645 | ||
1c846c1f | 5646 | STATIC void |
cea2e8a9 | 5647 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
5648 | { |
5649 | AV *av; | |
5650 | SV **svp; | |
5651 | I32 i; | |
5652 | SV *tsv = SvRV(sv); | |
c04a4dfe | 5653 | MAGIC *mg = NULL; |
14befaf4 | 5654 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, PERL_MAGIC_backref))) |
cea2e8a9 | 5655 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
5656 | av = (AV *)mg->mg_obj; |
5657 | svp = AvARRAY(av); | |
fdc9a813 AE |
5658 | for (i = AvFILLp(av); i >= 0; i--) |
5659 | if (svp[i] == sv) svp[i] = Nullsv; | |
810b8aa5 GS |
5660 | } |
5661 | ||
954c1994 GS |
5662 | /* |
5663 | =for apidoc sv_insert | |
5664 | ||
5665 | Inserts a string at the specified offset/length within the SV. Similar to | |
5666 | the Perl substr() function. | |
5667 | ||
5668 | =cut | |
5669 | */ | |
5670 | ||
79072805 | 5671 | void |
e1ec3a88 | 5672 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, const char *little, STRLEN littlelen) |
79072805 LW |
5673 | { |
5674 | register char *big; | |
5675 | register char *mid; | |
5676 | register char *midend; | |
5677 | register char *bigend; | |
5678 | register I32 i; | |
6ff81951 | 5679 | STRLEN curlen; |
1c846c1f | 5680 | |
79072805 | 5681 | |
8990e307 | 5682 | if (!bigstr) |
cea2e8a9 | 5683 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 | 5684 | SvPV_force(bigstr, curlen); |
60fa28ff | 5685 | (void)SvPOK_only_UTF8(bigstr); |
6ff81951 GS |
5686 | if (offset + len > curlen) { |
5687 | SvGROW(bigstr, offset+len+1); | |
5688 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
5689 | SvCUR_set(bigstr, offset+len); | |
5690 | } | |
79072805 | 5691 | |
69b47968 | 5692 | SvTAINT(bigstr); |
79072805 LW |
5693 | i = littlelen - len; |
5694 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 5695 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
5696 | mid = big + offset + len; |
5697 | midend = bigend = big + SvCUR(bigstr); | |
5698 | bigend += i; | |
5699 | *bigend = '\0'; | |
5700 | while (midend > mid) /* shove everything down */ | |
5701 | *--bigend = *--midend; | |
5702 | Move(little,big+offset,littlelen,char); | |
b162af07 | 5703 | SvCUR_set(bigstr, SvCUR(bigstr) + i); |
79072805 LW |
5704 | SvSETMAGIC(bigstr); |
5705 | return; | |
5706 | } | |
5707 | else if (i == 0) { | |
463ee0b2 | 5708 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
5709 | SvSETMAGIC(bigstr); |
5710 | return; | |
5711 | } | |
5712 | ||
463ee0b2 | 5713 | big = SvPVX(bigstr); |
79072805 LW |
5714 | mid = big + offset; |
5715 | midend = mid + len; | |
5716 | bigend = big + SvCUR(bigstr); | |
5717 | ||
5718 | if (midend > bigend) | |
cea2e8a9 | 5719 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
5720 | |
5721 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
5722 | if (littlelen) { | |
5723 | Move(little, mid, littlelen,char); | |
5724 | mid += littlelen; | |
5725 | } | |
5726 | i = bigend - midend; | |
5727 | if (i > 0) { | |
5728 | Move(midend, mid, i,char); | |
5729 | mid += i; | |
5730 | } | |
5731 | *mid = '\0'; | |
5732 | SvCUR_set(bigstr, mid - big); | |
5733 | } | |
5734 | /*SUPPRESS 560*/ | |
155aba94 | 5735 | else if ((i = mid - big)) { /* faster from front */ |
79072805 LW |
5736 | midend -= littlelen; |
5737 | mid = midend; | |
5738 | sv_chop(bigstr,midend-i); | |
5739 | big += i; | |
5740 | while (i--) | |
5741 | *--midend = *--big; | |
5742 | if (littlelen) | |
5743 | Move(little, mid, littlelen,char); | |
5744 | } | |
5745 | else if (littlelen) { | |
5746 | midend -= littlelen; | |
5747 | sv_chop(bigstr,midend); | |
5748 | Move(little,midend,littlelen,char); | |
5749 | } | |
5750 | else { | |
5751 | sv_chop(bigstr,midend); | |
5752 | } | |
5753 | SvSETMAGIC(bigstr); | |
5754 | } | |
5755 | ||
c461cf8f JH |
5756 | /* |
5757 | =for apidoc sv_replace | |
5758 | ||
5759 | Make the first argument a copy of the second, then delete the original. | |
645c22ef DM |
5760 | The target SV physically takes over ownership of the body of the source SV |
5761 | and inherits its flags; however, the target keeps any magic it owns, | |
5762 | and any magic in the source is discarded. | |
ff276b08 | 5763 | Note that this is a rather specialist SV copying operation; most of the |
645c22ef | 5764 | time you'll want to use C<sv_setsv> or one of its many macro front-ends. |
c461cf8f JH |
5765 | |
5766 | =cut | |
5767 | */ | |
79072805 LW |
5768 | |
5769 | void | |
864dbfa3 | 5770 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 LW |
5771 | { |
5772 | U32 refcnt = SvREFCNT(sv); | |
765f542d | 5773 | SV_CHECK_THINKFIRST_COW_DROP(sv); |
0453d815 | 5774 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 5775 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "Reference miscount in sv_replace()"); |
93a17b20 | 5776 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
5777 | if (SvMAGICAL(nsv)) |
5778 | mg_free(nsv); | |
5779 | else | |
5780 | sv_upgrade(nsv, SVt_PVMG); | |
b162af07 | 5781 | SvMAGIC_set(nsv, SvMAGIC(sv)); |
a0d0e21e | 5782 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 | 5783 | SvMAGICAL_off(sv); |
b162af07 | 5784 | SvMAGIC_set(sv, NULL); |
93a17b20 | 5785 | } |
79072805 LW |
5786 | SvREFCNT(sv) = 0; |
5787 | sv_clear(sv); | |
477f5d66 | 5788 | assert(!SvREFCNT(sv)); |
fd0854ff DM |
5789 | #ifdef DEBUG_LEAKING_SCALARS |
5790 | sv->sv_flags = nsv->sv_flags; | |
5791 | sv->sv_any = nsv->sv_any; | |
5792 | sv->sv_refcnt = nsv->sv_refcnt; | |
5793 | #else | |
79072805 | 5794 | StructCopy(nsv,sv,SV); |
fd0854ff DM |
5795 | #endif |
5796 | ||
d3d0e6f1 NC |
5797 | #ifdef PERL_COPY_ON_WRITE |
5798 | if (SvIsCOW_normal(nsv)) { | |
5799 | /* We need to follow the pointers around the loop to make the | |
5800 | previous SV point to sv, rather than nsv. */ | |
5801 | SV *next; | |
5802 | SV *current = nsv; | |
5803 | while ((next = SV_COW_NEXT_SV(current)) != nsv) { | |
5804 | assert(next); | |
5805 | current = next; | |
5806 | assert(SvPVX(current) == SvPVX(nsv)); | |
5807 | } | |
5808 | /* Make the SV before us point to the SV after us. */ | |
5809 | if (DEBUG_C_TEST) { | |
5810 | PerlIO_printf(Perl_debug_log, "previous is\n"); | |
5811 | sv_dump(current); | |
a29f6d03 NC |
5812 | PerlIO_printf(Perl_debug_log, |
5813 | "move it from 0x%"UVxf" to 0x%"UVxf"\n", | |
d3d0e6f1 NC |
5814 | (UV) SV_COW_NEXT_SV(current), (UV) sv); |
5815 | } | |
a29f6d03 | 5816 | SV_COW_NEXT_SV_SET(current, sv); |
d3d0e6f1 NC |
5817 | } |
5818 | #endif | |
79072805 | 5819 | SvREFCNT(sv) = refcnt; |
1edc1566 | 5820 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
39cf41c2 | 5821 | SvREFCNT(nsv) = 0; |
463ee0b2 | 5822 | del_SV(nsv); |
79072805 LW |
5823 | } |
5824 | ||
c461cf8f JH |
5825 | /* |
5826 | =for apidoc sv_clear | |
5827 | ||
645c22ef DM |
5828 | Clear an SV: call any destructors, free up any memory used by the body, |
5829 | and free the body itself. The SV's head is I<not> freed, although | |
5830 | its type is set to all 1's so that it won't inadvertently be assumed | |
5831 | to be live during global destruction etc. | |
5832 | This function should only be called when REFCNT is zero. Most of the time | |
5833 | you'll want to call C<sv_free()> (or its macro wrapper C<SvREFCNT_dec>) | |
5834 | instead. | |
c461cf8f JH |
5835 | |
5836 | =cut | |
5837 | */ | |
5838 | ||
79072805 | 5839 | void |
864dbfa3 | 5840 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 5841 | { |
27da23d5 | 5842 | dVAR; |
ec12f114 | 5843 | HV* stash; |
79072805 LW |
5844 | assert(sv); |
5845 | assert(SvREFCNT(sv) == 0); | |
5846 | ||
ed6116ce | 5847 | if (SvOBJECT(sv)) { |
3280af22 | 5848 | if (PL_defstash) { /* Still have a symbol table? */ |
39644a26 | 5849 | dSP; |
32251b26 | 5850 | CV* destructor; |
a0d0e21e | 5851 | |
5cc433a6 | 5852 | |
8ebc5c01 | 5853 | |
d460ef45 | 5854 | do { |
4e8e7886 | 5855 | stash = SvSTASH(sv); |
32251b26 | 5856 | destructor = StashHANDLER(stash,DESTROY); |
4e8e7886 | 5857 | if (destructor) { |
5cc433a6 AB |
5858 | SV* tmpref = newRV(sv); |
5859 | SvREADONLY_on(tmpref); /* DESTROY() could be naughty */ | |
4e8e7886 | 5860 | ENTER; |
e788e7d3 | 5861 | PUSHSTACKi(PERLSI_DESTROY); |
4e8e7886 GS |
5862 | EXTEND(SP, 2); |
5863 | PUSHMARK(SP); | |
5cc433a6 | 5864 | PUSHs(tmpref); |
4e8e7886 | 5865 | PUTBACK; |
44389ee9 | 5866 | call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR|G_VOID); |
7a5fa8a2 NIS |
5867 | |
5868 | ||
d3acc0f7 | 5869 | POPSTACK; |
3095d977 | 5870 | SPAGAIN; |
4e8e7886 | 5871 | LEAVE; |
5cc433a6 AB |
5872 | if(SvREFCNT(tmpref) < 2) { |
5873 | /* tmpref is not kept alive! */ | |
5874 | SvREFCNT(sv)--; | |
b162af07 | 5875 | SvRV_set(tmpref, NULL); |
5cc433a6 AB |
5876 | SvROK_off(tmpref); |
5877 | } | |
5878 | SvREFCNT_dec(tmpref); | |
4e8e7886 GS |
5879 | } |
5880 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 5881 | |
6f44e0a4 JP |
5882 | |
5883 | if (SvREFCNT(sv)) { | |
5884 | if (PL_in_clean_objs) | |
cea2e8a9 | 5885 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
5886 | HvNAME(stash)); |
5887 | /* DESTROY gave object new lease on life */ | |
5888 | return; | |
5889 | } | |
a0d0e21e | 5890 | } |
4e8e7886 | 5891 | |
a0d0e21e | 5892 | if (SvOBJECT(sv)) { |
4e8e7886 | 5893 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
5894 | SvOBJECT_off(sv); /* Curse the object. */ |
5895 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 5896 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 5897 | } |
463ee0b2 | 5898 | } |
524189f1 JH |
5899 | if (SvTYPE(sv) >= SVt_PVMG) { |
5900 | if (SvMAGIC(sv)) | |
5901 | mg_free(sv); | |
5902 | if (SvFLAGS(sv) & SVpad_TYPED) | |
5903 | SvREFCNT_dec(SvSTASH(sv)); | |
5904 | } | |
ec12f114 | 5905 | stash = NULL; |
79072805 | 5906 | switch (SvTYPE(sv)) { |
8990e307 | 5907 | case SVt_PVIO: |
df0bd2f4 GS |
5908 | if (IoIFP(sv) && |
5909 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 5910 | IoIFP(sv) != PerlIO_stdout() && |
5911 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 5912 | { |
f2b5be74 | 5913 | io_close((IO*)sv, FALSE); |
93578b34 | 5914 | } |
1d7c1841 | 5915 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 5916 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 5917 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
5918 | Safefree(IoTOP_NAME(sv)); |
5919 | Safefree(IoFMT_NAME(sv)); | |
5920 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 5921 | /* FALL THROUGH */ |
79072805 | 5922 | case SVt_PVBM: |
a0d0e21e | 5923 | goto freescalar; |
79072805 | 5924 | case SVt_PVCV: |
748a9306 | 5925 | case SVt_PVFM: |
85e6fe83 | 5926 | cv_undef((CV*)sv); |
a0d0e21e | 5927 | goto freescalar; |
79072805 | 5928 | case SVt_PVHV: |
85e6fe83 | 5929 | hv_undef((HV*)sv); |
a0d0e21e | 5930 | break; |
79072805 | 5931 | case SVt_PVAV: |
85e6fe83 | 5932 | av_undef((AV*)sv); |
a0d0e21e | 5933 | break; |
02270b4e | 5934 | case SVt_PVLV: |
dd28f7bb DM |
5935 | if (LvTYPE(sv) == 'T') { /* for tie: return HE to pool */ |
5936 | SvREFCNT_dec(HeKEY_sv((HE*)LvTARG(sv))); | |
5937 | HeNEXT((HE*)LvTARG(sv)) = PL_hv_fetch_ent_mh; | |
5938 | PL_hv_fetch_ent_mh = (HE*)LvTARG(sv); | |
5939 | } | |
5940 | else if (LvTYPE(sv) != 't') /* unless tie: unrefcnted fake SV** */ | |
5941 | SvREFCNT_dec(LvTARG(sv)); | |
02270b4e | 5942 | goto freescalar; |
a0d0e21e | 5943 | case SVt_PVGV: |
1edc1566 | 5944 | gp_free((GV*)sv); |
a0d0e21e | 5945 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
5946 | /* cannot decrease stash refcount yet, as we might recursively delete |
5947 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
5948 | of stash until current sv is completely gone. | |
5949 | -- JohnPC, 27 Mar 1998 */ | |
5950 | stash = GvSTASH(sv); | |
a0d0e21e | 5951 | /* FALL THROUGH */ |
79072805 | 5952 | case SVt_PVMG: |
79072805 LW |
5953 | case SVt_PVNV: |
5954 | case SVt_PVIV: | |
a0d0e21e | 5955 | freescalar: |
5228ca4e NC |
5956 | /* Don't bother with SvOOK_off(sv); as we're only going to free it. */ |
5957 | if (SvOOK(sv)) { | |
5958 | SvPV_set(sv, SvPVX(sv) - SvIVX(sv)); | |
5959 | /* Don't even bother with turning off the OOK flag. */ | |
5960 | } | |
79072805 LW |
5961 | /* FALL THROUGH */ |
5962 | case SVt_PV: | |
a0d0e21e | 5963 | case SVt_RV: |
810b8aa5 GS |
5964 | if (SvROK(sv)) { |
5965 | if (SvWEAKREF(sv)) | |
5966 | sv_del_backref(sv); | |
5967 | else | |
5968 | SvREFCNT_dec(SvRV(sv)); | |
5969 | } | |
765f542d NC |
5970 | #ifdef PERL_COPY_ON_WRITE |
5971 | else if (SvPVX(sv)) { | |
5972 | if (SvIsCOW(sv)) { | |
5973 | /* I believe I need to grab the global SV mutex here and | |
5974 | then recheck the COW status. */ | |
46187eeb NC |
5975 | if (DEBUG_C_TEST) { |
5976 | PerlIO_printf(Perl_debug_log, "Copy on write: clear\n"); | |
e419cbc5 | 5977 | sv_dump(sv); |
46187eeb | 5978 | } |
e419cbc5 | 5979 | sv_release_COW(sv, SvPVX(sv), SvCUR(sv), SvLEN(sv), |
765f542d NC |
5980 | SvUVX(sv), SV_COW_NEXT_SV(sv)); |
5981 | /* And drop it here. */ | |
5982 | SvFAKE_off(sv); | |
5983 | } else if (SvLEN(sv)) { | |
5984 | Safefree(SvPVX(sv)); | |
5985 | } | |
5986 | } | |
5987 | #else | |
1edc1566 | 5988 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 5989 | Safefree(SvPVX(sv)); |
1c846c1f | 5990 | else if (SvPVX(sv) && SvREADONLY(sv) && SvFAKE(sv)) { |
25716404 GS |
5991 | unsharepvn(SvPVX(sv), |
5992 | SvUTF8(sv) ? -(I32)SvCUR(sv) : SvCUR(sv), | |
5993 | SvUVX(sv)); | |
1c846c1f NIS |
5994 | SvFAKE_off(sv); |
5995 | } | |
765f542d | 5996 | #endif |
79072805 | 5997 | break; |
a0d0e21e | 5998 | /* |
79072805 | 5999 | case SVt_NV: |
79072805 | 6000 | case SVt_IV: |
79072805 LW |
6001 | case SVt_NULL: |
6002 | break; | |
a0d0e21e | 6003 | */ |
79072805 LW |
6004 | } |
6005 | ||
6006 | switch (SvTYPE(sv)) { | |
6007 | case SVt_NULL: | |
6008 | break; | |
79072805 LW |
6009 | case SVt_IV: |
6010 | del_XIV(SvANY(sv)); | |
6011 | break; | |
6012 | case SVt_NV: | |
6013 | del_XNV(SvANY(sv)); | |
6014 | break; | |
ed6116ce LW |
6015 | case SVt_RV: |
6016 | del_XRV(SvANY(sv)); | |
6017 | break; | |
79072805 LW |
6018 | case SVt_PV: |
6019 | del_XPV(SvANY(sv)); | |
6020 | break; | |
6021 | case SVt_PVIV: | |
6022 | del_XPVIV(SvANY(sv)); | |
6023 | break; | |
6024 | case SVt_PVNV: | |
6025 | del_XPVNV(SvANY(sv)); | |
6026 | break; | |
6027 | case SVt_PVMG: | |
6028 | del_XPVMG(SvANY(sv)); | |
6029 | break; | |
6030 | case SVt_PVLV: | |
6031 | del_XPVLV(SvANY(sv)); | |
6032 | break; | |
6033 | case SVt_PVAV: | |
6034 | del_XPVAV(SvANY(sv)); | |
6035 | break; | |
6036 | case SVt_PVHV: | |
6037 | del_XPVHV(SvANY(sv)); | |
6038 | break; | |
6039 | case SVt_PVCV: | |
6040 | del_XPVCV(SvANY(sv)); | |
6041 | break; | |
6042 | case SVt_PVGV: | |
6043 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
6044 | /* code duplication for increased performance. */ |
6045 | SvFLAGS(sv) &= SVf_BREAK; | |
6046 | SvFLAGS(sv) |= SVTYPEMASK; | |
6047 | /* decrease refcount of the stash that owns this GV, if any */ | |
6048 | if (stash) | |
6049 | SvREFCNT_dec(stash); | |
6050 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
6051 | case SVt_PVBM: |
6052 | del_XPVBM(SvANY(sv)); | |
6053 | break; | |
6054 | case SVt_PVFM: | |
6055 | del_XPVFM(SvANY(sv)); | |
6056 | break; | |
8990e307 LW |
6057 | case SVt_PVIO: |
6058 | del_XPVIO(SvANY(sv)); | |
6059 | break; | |
79072805 | 6060 | } |
a0d0e21e | 6061 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 6062 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
6063 | } |
6064 | ||
645c22ef DM |
6065 | /* |
6066 | =for apidoc sv_newref | |
6067 | ||
6068 | Increment an SV's reference count. Use the C<SvREFCNT_inc()> wrapper | |
6069 | instead. | |
6070 | ||
6071 | =cut | |
6072 | */ | |
6073 | ||
79072805 | 6074 | SV * |
864dbfa3 | 6075 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 6076 | { |
463ee0b2 | 6077 | if (sv) |
4db098f4 | 6078 | (SvREFCNT(sv))++; |
79072805 LW |
6079 | return sv; |
6080 | } | |
6081 | ||
c461cf8f JH |
6082 | /* |
6083 | =for apidoc sv_free | |
6084 | ||
645c22ef DM |
6085 | Decrement an SV's reference count, and if it drops to zero, call |
6086 | C<sv_clear> to invoke destructors and free up any memory used by | |
6087 | the body; finally, deallocate the SV's head itself. | |
6088 | Normally called via a wrapper macro C<SvREFCNT_dec>. | |
c461cf8f JH |
6089 | |
6090 | =cut | |
6091 | */ | |
6092 | ||
79072805 | 6093 | void |
864dbfa3 | 6094 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 6095 | { |
27da23d5 | 6096 | dVAR; |
79072805 LW |
6097 | if (!sv) |
6098 | return; | |
a0d0e21e LW |
6099 | if (SvREFCNT(sv) == 0) { |
6100 | if (SvFLAGS(sv) & SVf_BREAK) | |
645c22ef DM |
6101 | /* this SV's refcnt has been artificially decremented to |
6102 | * trigger cleanup */ | |
a0d0e21e | 6103 | return; |
3280af22 | 6104 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 6105 | return; |
d689ffdd JP |
6106 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
6107 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
6108 | SvREFCNT(sv) = (~(U32)0)/2; | |
6109 | return; | |
6110 | } | |
0453d815 | 6111 | if (ckWARN_d(WARN_INTERNAL)) |
d5dede04 | 6112 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
472d47bc SB |
6113 | "Attempt to free unreferenced scalar: SV 0x%"UVxf |
6114 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 LW |
6115 | return; |
6116 | } | |
4db098f4 | 6117 | if (--(SvREFCNT(sv)) > 0) |
8990e307 | 6118 | return; |
8c4d3c90 NC |
6119 | Perl_sv_free2(aTHX_ sv); |
6120 | } | |
6121 | ||
6122 | void | |
6123 | Perl_sv_free2(pTHX_ SV *sv) | |
6124 | { | |
27da23d5 | 6125 | dVAR; |
463ee0b2 LW |
6126 | #ifdef DEBUGGING |
6127 | if (SvTEMP(sv)) { | |
0453d815 | 6128 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 6129 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
472d47bc SB |
6130 | "Attempt to free temp prematurely: SV 0x%"UVxf |
6131 | pTHX__FORMAT, PTR2UV(sv) pTHX__VALUE); | |
79072805 | 6132 | return; |
79072805 | 6133 | } |
463ee0b2 | 6134 | #endif |
d689ffdd JP |
6135 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
6136 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
6137 | SvREFCNT(sv) = (~(U32)0)/2; | |
6138 | return; | |
6139 | } | |
79072805 | 6140 | sv_clear(sv); |
477f5d66 CS |
6141 | if (! SvREFCNT(sv)) |
6142 | del_SV(sv); | |
79072805 LW |
6143 | } |
6144 | ||
954c1994 GS |
6145 | /* |
6146 | =for apidoc sv_len | |
6147 | ||
645c22ef DM |
6148 | Returns the length of the string in the SV. Handles magic and type |
6149 | coercion. See also C<SvCUR>, which gives raw access to the xpv_cur slot. | |
954c1994 GS |
6150 | |
6151 | =cut | |
6152 | */ | |
6153 | ||
79072805 | 6154 | STRLEN |
864dbfa3 | 6155 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 6156 | { |
463ee0b2 | 6157 | STRLEN len; |
79072805 LW |
6158 | |
6159 | if (!sv) | |
6160 | return 0; | |
6161 | ||
8990e307 | 6162 | if (SvGMAGICAL(sv)) |
565764a8 | 6163 | len = mg_length(sv); |
8990e307 | 6164 | else |
497b47a8 | 6165 | (void)SvPV(sv, len); |
463ee0b2 | 6166 | return len; |
79072805 LW |
6167 | } |
6168 | ||
c461cf8f JH |
6169 | /* |
6170 | =for apidoc sv_len_utf8 | |
6171 | ||
6172 | Returns the number of characters in the string in an SV, counting wide | |
1e54db1a | 6173 | UTF-8 bytes as a single character. Handles magic and type coercion. |
c461cf8f JH |
6174 | |
6175 | =cut | |
6176 | */ | |
6177 | ||
7e8c5dac HS |
6178 | /* |
6179 | * The length is cached in PERL_UTF8_magic, in the mg_len field. Also the | |
6180 | * mg_ptr is used, by sv_pos_u2b(), see the comments of S_utf8_mg_pos_init(). | |
6181 | * (Note that the mg_len is not the length of the mg_ptr field.) | |
7a5fa8a2 | 6182 | * |
7e8c5dac HS |
6183 | */ |
6184 | ||
a0ed51b3 | 6185 | STRLEN |
864dbfa3 | 6186 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 6187 | { |
a0ed51b3 LW |
6188 | if (!sv) |
6189 | return 0; | |
6190 | ||
a0ed51b3 | 6191 | if (SvGMAGICAL(sv)) |
b76347f2 | 6192 | return mg_length(sv); |
a0ed51b3 | 6193 | else |
b76347f2 | 6194 | { |
7e8c5dac | 6195 | STRLEN len, ulen; |
b76347f2 | 6196 | U8 *s = (U8*)SvPV(sv, len); |
7e8c5dac HS |
6197 | MAGIC *mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_utf8) : 0; |
6198 | ||
e23c8137 | 6199 | if (mg && mg->mg_len != -1 && (mg->mg_len > 0 || len == 0)) { |
7e8c5dac | 6200 | ulen = mg->mg_len; |
e23c8137 JH |
6201 | #ifdef PERL_UTF8_CACHE_ASSERT |
6202 | assert(ulen == Perl_utf8_length(aTHX_ s, s + len)); | |
6203 | #endif | |
6204 | } | |
7e8c5dac HS |
6205 | else { |
6206 | ulen = Perl_utf8_length(aTHX_ s, s + len); | |
6207 | if (!mg && !SvREADONLY(sv)) { | |
6208 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
6209 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
6210 | assert(mg); | |
6211 | } | |
6212 | if (mg) | |
6213 | mg->mg_len = ulen; | |
6214 | } | |
6215 | return ulen; | |
6216 | } | |
6217 | } | |
6218 | ||
6219 | /* S_utf8_mg_pos_init() is used to initialize the mg_ptr field of | |
6220 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
6221 | * between UTF-8 and byte offsets. There are two (substr offset and substr | |
6222 | * length, the i offset, PERL_MAGIC_UTF8_CACHESIZE) times two (UTF-8 offset | |
6223 | * and byte offset) cache positions. | |
6224 | * | |
6225 | * The mg_len field is used by sv_len_utf8(), see its comments. | |
6226 | * Note that the mg_len is not the length of the mg_ptr field. | |
6227 | * | |
6228 | */ | |
6229 | STATIC bool | |
6e551876 | 6230 | S_utf8_mg_pos_init(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, U8 *s, U8 *start) |
7e8c5dac | 6231 | { |
7a5fa8a2 | 6232 | bool found = FALSE; |
7e8c5dac HS |
6233 | |
6234 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
8f78557a | 6235 | if (!*mgp) |
27da23d5 | 6236 | *mgp = sv_magicext(sv, 0, PERL_MAGIC_utf8, (MGVTBL*)&PL_vtbl_utf8, 0, 0); |
7e8c5dac | 6237 | assert(*mgp); |
b76347f2 | 6238 | |
7e8c5dac HS |
6239 | if ((*mgp)->mg_ptr) |
6240 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
6241 | else { | |
6242 | Newz(0, *cachep, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); | |
6243 | (*mgp)->mg_ptr = (char *) *cachep; | |
6244 | } | |
6245 | assert(*cachep); | |
6246 | ||
6247 | (*cachep)[i] = *offsetp; | |
6248 | (*cachep)[i+1] = s - start; | |
6249 | found = TRUE; | |
a0ed51b3 | 6250 | } |
7e8c5dac HS |
6251 | |
6252 | return found; | |
a0ed51b3 LW |
6253 | } |
6254 | ||
645c22ef | 6255 | /* |
7e8c5dac HS |
6256 | * S_utf8_mg_pos() is used to query and update mg_ptr field of |
6257 | * a PERL_UTF8_magic. The mg_ptr is used to store the mapping | |
6258 | * between UTF-8 and byte offsets. See also the comments of | |
6259 | * S_utf8_mg_pos_init(). | |
6260 | * | |
6261 | */ | |
6262 | STATIC bool | |
6e551876 | 6263 | S_utf8_mg_pos(pTHX_ SV *sv, MAGIC **mgp, STRLEN **cachep, I32 i, I32 *offsetp, I32 uoff, U8 **sp, U8 *start, U8 *send) |
7e8c5dac HS |
6264 | { |
6265 | bool found = FALSE; | |
6266 | ||
6267 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
6268 | if (!*mgp) | |
6269 | *mgp = mg_find(sv, PERL_MAGIC_utf8); | |
6270 | if (*mgp && (*mgp)->mg_ptr) { | |
6271 | *cachep = (STRLEN *) (*mgp)->mg_ptr; | |
e23c8137 | 6272 | ASSERT_UTF8_CACHE(*cachep); |
667208dd | 6273 | if ((*cachep)[i] == (STRLEN)uoff) /* An exact match. */ |
7a5fa8a2 | 6274 | found = TRUE; |
7e8c5dac HS |
6275 | else { /* We will skip to the right spot. */ |
6276 | STRLEN forw = 0; | |
6277 | STRLEN backw = 0; | |
6278 | U8* p = NULL; | |
6279 | ||
6280 | /* The assumption is that going backward is half | |
6281 | * the speed of going forward (that's where the | |
6282 | * 2 * backw in the below comes from). (The real | |
6283 | * figure of course depends on the UTF-8 data.) */ | |
6284 | ||
667208dd | 6285 | if ((*cachep)[i] > (STRLEN)uoff) { |
7e8c5dac | 6286 | forw = uoff; |
667208dd | 6287 | backw = (*cachep)[i] - (STRLEN)uoff; |
7e8c5dac HS |
6288 | |
6289 | if (forw < 2 * backw) | |
6290 | p = start; | |
6291 | else | |
6292 | p = start + (*cachep)[i+1]; | |
6293 | } | |
6294 | /* Try this only for the substr offset (i == 0), | |
6295 | * not for the substr length (i == 2). */ | |
6296 | else if (i == 0) { /* (*cachep)[i] < uoff */ | |
6297 | STRLEN ulen = sv_len_utf8(sv); | |
6298 | ||
667208dd JH |
6299 | if ((STRLEN)uoff < ulen) { |
6300 | forw = (STRLEN)uoff - (*cachep)[i]; | |
6301 | backw = ulen - (STRLEN)uoff; | |
7e8c5dac HS |
6302 | |
6303 | if (forw < 2 * backw) | |
6304 | p = start + (*cachep)[i+1]; | |
6305 | else | |
6306 | p = send; | |
6307 | } | |
6308 | ||
6309 | /* If the string is not long enough for uoff, | |
6310 | * we could extend it, but not at this low a level. */ | |
6311 | } | |
6312 | ||
6313 | if (p) { | |
6314 | if (forw < 2 * backw) { | |
6315 | while (forw--) | |
6316 | p += UTF8SKIP(p); | |
6317 | } | |
6318 | else { | |
6319 | while (backw--) { | |
6320 | p--; | |
6321 | while (UTF8_IS_CONTINUATION(*p)) | |
6322 | p--; | |
6323 | } | |
6324 | } | |
6325 | ||
6326 | /* Update the cache. */ | |
667208dd | 6327 | (*cachep)[i] = (STRLEN)uoff; |
7e8c5dac | 6328 | (*cachep)[i+1] = p - start; |
8f78557a AE |
6329 | |
6330 | /* Drop the stale "length" cache */ | |
6331 | if (i == 0) { | |
6332 | (*cachep)[2] = 0; | |
6333 | (*cachep)[3] = 0; | |
6334 | } | |
7a5fa8a2 | 6335 | |
7e8c5dac HS |
6336 | found = TRUE; |
6337 | } | |
6338 | } | |
6339 | if (found) { /* Setup the return values. */ | |
6340 | *offsetp = (*cachep)[i+1]; | |
6341 | *sp = start + *offsetp; | |
6342 | if (*sp >= send) { | |
6343 | *sp = send; | |
6344 | *offsetp = send - start; | |
6345 | } | |
6346 | else if (*sp < start) { | |
6347 | *sp = start; | |
6348 | *offsetp = 0; | |
6349 | } | |
6350 | } | |
6351 | } | |
e23c8137 JH |
6352 | #ifdef PERL_UTF8_CACHE_ASSERT |
6353 | if (found) { | |
6354 | U8 *s = start; | |
6355 | I32 n = uoff; | |
6356 | ||
6357 | while (n-- && s < send) | |
6358 | s += UTF8SKIP(s); | |
6359 | ||
6360 | if (i == 0) { | |
6361 | assert(*offsetp == s - start); | |
6362 | assert((*cachep)[0] == (STRLEN)uoff); | |
6363 | assert((*cachep)[1] == *offsetp); | |
6364 | } | |
6365 | ASSERT_UTF8_CACHE(*cachep); | |
6366 | } | |
6367 | #endif | |
7e8c5dac | 6368 | } |
e23c8137 | 6369 | |
7e8c5dac HS |
6370 | return found; |
6371 | } | |
7a5fa8a2 | 6372 | |
7e8c5dac | 6373 | /* |
645c22ef DM |
6374 | =for apidoc sv_pos_u2b |
6375 | ||
1e54db1a | 6376 | Converts the value pointed to by offsetp from a count of UTF-8 chars from |
645c22ef DM |
6377 | the start of the string, to a count of the equivalent number of bytes; if |
6378 | lenp is non-zero, it does the same to lenp, but this time starting from | |
6379 | the offset, rather than from the start of the string. Handles magic and | |
6380 | type coercion. | |
6381 | ||
6382 | =cut | |
6383 | */ | |
6384 | ||
7e8c5dac HS |
6385 | /* |
6386 | * sv_pos_u2b() uses, like sv_pos_b2u(), the mg_ptr of the potential | |
6387 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
6388 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
6389 | * | |
6390 | */ | |
6391 | ||
a0ed51b3 | 6392 | void |
864dbfa3 | 6393 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 6394 | { |
dfe13c55 GS |
6395 | U8 *start; |
6396 | U8 *s; | |
a0ed51b3 | 6397 | STRLEN len; |
7e8c5dac HS |
6398 | STRLEN *cache = 0; |
6399 | STRLEN boffset = 0; | |
a0ed51b3 LW |
6400 | |
6401 | if (!sv) | |
6402 | return; | |
6403 | ||
dfe13c55 | 6404 | start = s = (U8*)SvPV(sv, len); |
7e8c5dac HS |
6405 | if (len) { |
6406 | I32 uoffset = *offsetp; | |
6407 | U8 *send = s + len; | |
6408 | MAGIC *mg = 0; | |
6409 | bool found = FALSE; | |
6410 | ||
bdf77a2a | 6411 | if (utf8_mg_pos(sv, &mg, &cache, 0, offsetp, *offsetp, &s, start, send)) |
7e8c5dac HS |
6412 | found = TRUE; |
6413 | if (!found && uoffset > 0) { | |
6414 | while (s < send && uoffset--) | |
6415 | s += UTF8SKIP(s); | |
6416 | if (s >= send) | |
6417 | s = send; | |
bdf77a2a | 6418 | if (utf8_mg_pos_init(sv, &mg, &cache, 0, offsetp, s, start)) |
7e8c5dac HS |
6419 | boffset = cache[1]; |
6420 | *offsetp = s - start; | |
6421 | } | |
6422 | if (lenp) { | |
6423 | found = FALSE; | |
6424 | start = s; | |
ec062429 | 6425 | if (utf8_mg_pos(sv, &mg, &cache, 2, lenp, *lenp, &s, start, send)) { |
7e8c5dac HS |
6426 | *lenp -= boffset; |
6427 | found = TRUE; | |
6428 | } | |
6429 | if (!found && *lenp > 0) { | |
6430 | I32 ulen = *lenp; | |
6431 | if (ulen > 0) | |
6432 | while (s < send && ulen--) | |
6433 | s += UTF8SKIP(s); | |
6434 | if (s >= send) | |
6435 | s = send; | |
a67d7df9 | 6436 | utf8_mg_pos_init(sv, &mg, &cache, 2, lenp, s, start); |
7e8c5dac HS |
6437 | } |
6438 | *lenp = s - start; | |
6439 | } | |
e23c8137 | 6440 | ASSERT_UTF8_CACHE(cache); |
7e8c5dac HS |
6441 | } |
6442 | else { | |
6443 | *offsetp = 0; | |
6444 | if (lenp) | |
6445 | *lenp = 0; | |
a0ed51b3 | 6446 | } |
e23c8137 | 6447 | |
a0ed51b3 LW |
6448 | return; |
6449 | } | |
6450 | ||
645c22ef DM |
6451 | /* |
6452 | =for apidoc sv_pos_b2u | |
6453 | ||
6454 | Converts the value pointed to by offsetp from a count of bytes from the | |
1e54db1a | 6455 | start of the string, to a count of the equivalent number of UTF-8 chars. |
645c22ef DM |
6456 | Handles magic and type coercion. |
6457 | ||
6458 | =cut | |
6459 | */ | |
6460 | ||
7e8c5dac HS |
6461 | /* |
6462 | * sv_pos_b2u() uses, like sv_pos_u2b(), the mg_ptr of the potential | |
6463 | * PERL_UTF8_magic of the sv to store the mapping between UTF-8 and | |
6464 | * byte offsets. See also the comments of S_utf8_mg_pos(). | |
6465 | * | |
6466 | */ | |
6467 | ||
a0ed51b3 | 6468 | void |
7e8c5dac | 6469 | Perl_sv_pos_b2u(pTHX_ register SV* sv, I32* offsetp) |
a0ed51b3 | 6470 | { |
7e8c5dac | 6471 | U8* s; |
a0ed51b3 LW |
6472 | STRLEN len; |
6473 | ||
6474 | if (!sv) | |
6475 | return; | |
6476 | ||
dfe13c55 | 6477 | s = (U8*)SvPV(sv, len); |
eb160463 | 6478 | if ((I32)len < *offsetp) |
a0dbb045 | 6479 | Perl_croak(aTHX_ "panic: sv_pos_b2u: bad byte offset"); |
7e8c5dac HS |
6480 | else { |
6481 | U8* send = s + *offsetp; | |
6482 | MAGIC* mg = NULL; | |
6483 | STRLEN *cache = NULL; | |
6484 | ||
6485 | len = 0; | |
6486 | ||
6487 | if (SvMAGICAL(sv) && !SvREADONLY(sv)) { | |
6488 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
6489 | if (mg && mg->mg_ptr) { | |
6490 | cache = (STRLEN *) mg->mg_ptr; | |
c5661c80 | 6491 | if (cache[1] == (STRLEN)*offsetp) { |
7e8c5dac HS |
6492 | /* An exact match. */ |
6493 | *offsetp = cache[0]; | |
6494 | ||
6495 | return; | |
6496 | } | |
c5661c80 | 6497 | else if (cache[1] < (STRLEN)*offsetp) { |
7e8c5dac HS |
6498 | /* We already know part of the way. */ |
6499 | len = cache[0]; | |
6500 | s += cache[1]; | |
7a5fa8a2 | 6501 | /* Let the below loop do the rest. */ |
7e8c5dac HS |
6502 | } |
6503 | else { /* cache[1] > *offsetp */ | |
6504 | /* We already know all of the way, now we may | |
6505 | * be able to walk back. The same assumption | |
6506 | * is made as in S_utf8_mg_pos(), namely that | |
6507 | * walking backward is twice slower than | |
6508 | * walking forward. */ | |
6509 | STRLEN forw = *offsetp; | |
6510 | STRLEN backw = cache[1] - *offsetp; | |
6511 | ||
6512 | if (!(forw < 2 * backw)) { | |
6513 | U8 *p = s + cache[1]; | |
6514 | STRLEN ubackw = 0; | |
7a5fa8a2 | 6515 | |
a5b510f2 AE |
6516 | cache[1] -= backw; |
6517 | ||
7e8c5dac HS |
6518 | while (backw--) { |
6519 | p--; | |
0aeb64d0 | 6520 | while (UTF8_IS_CONTINUATION(*p)) { |
7e8c5dac | 6521 | p--; |
0aeb64d0 JH |
6522 | backw--; |
6523 | } | |
7e8c5dac HS |
6524 | ubackw++; |
6525 | } | |
6526 | ||
6527 | cache[0] -= ubackw; | |
0aeb64d0 | 6528 | *offsetp = cache[0]; |
a67d7df9 TS |
6529 | |
6530 | /* Drop the stale "length" cache */ | |
6531 | cache[2] = 0; | |
6532 | cache[3] = 0; | |
6533 | ||
0aeb64d0 | 6534 | return; |
7e8c5dac HS |
6535 | } |
6536 | } | |
6537 | } | |
e23c8137 | 6538 | ASSERT_UTF8_CACHE(cache); |
a0dbb045 | 6539 | } |
7e8c5dac HS |
6540 | |
6541 | while (s < send) { | |
6542 | STRLEN n = 1; | |
6543 | ||
6544 | /* Call utf8n_to_uvchr() to validate the sequence | |
6545 | * (unless a simple non-UTF character) */ | |
6546 | if (!UTF8_IS_INVARIANT(*s)) | |
6547 | utf8n_to_uvchr(s, UTF8SKIP(s), &n, 0); | |
6548 | if (n > 0) { | |
6549 | s += n; | |
6550 | len++; | |
6551 | } | |
6552 | else | |
6553 | break; | |
6554 | } | |
6555 | ||
6556 | if (!SvREADONLY(sv)) { | |
6557 | if (!mg) { | |
6558 | sv_magic(sv, 0, PERL_MAGIC_utf8, 0, 0); | |
6559 | mg = mg_find(sv, PERL_MAGIC_utf8); | |
6560 | } | |
6561 | assert(mg); | |
6562 | ||
6563 | if (!mg->mg_ptr) { | |
979acdb5 | 6564 | Newz(0, cache, PERL_MAGIC_UTF8_CACHESIZE * 2, STRLEN); |
7e8c5dac HS |
6565 | mg->mg_ptr = (char *) cache; |
6566 | } | |
6567 | assert(cache); | |
6568 | ||
6569 | cache[0] = len; | |
6570 | cache[1] = *offsetp; | |
a67d7df9 TS |
6571 | /* Drop the stale "length" cache */ |
6572 | cache[2] = 0; | |
6573 | cache[3] = 0; | |
7e8c5dac HS |
6574 | } |
6575 | ||
6576 | *offsetp = len; | |
a0ed51b3 | 6577 | } |
a0ed51b3 LW |
6578 | return; |
6579 | } | |
6580 | ||
954c1994 GS |
6581 | /* |
6582 | =for apidoc sv_eq | |
6583 | ||
6584 | Returns a boolean indicating whether the strings in the two SVs are | |
645c22ef DM |
6585 | identical. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
6586 | coerce its args to strings if necessary. | |
954c1994 GS |
6587 | |
6588 | =cut | |
6589 | */ | |
6590 | ||
79072805 | 6591 | I32 |
e01b9e88 | 6592 | Perl_sv_eq(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 6593 | { |
e1ec3a88 | 6594 | const char *pv1; |
463ee0b2 | 6595 | STRLEN cur1; |
e1ec3a88 | 6596 | const char *pv2; |
463ee0b2 | 6597 | STRLEN cur2; |
e01b9e88 | 6598 | I32 eq = 0; |
553e1bcc AT |
6599 | char *tpv = Nullch; |
6600 | SV* svrecode = Nullsv; | |
79072805 | 6601 | |
e01b9e88 | 6602 | if (!sv1) { |
79072805 LW |
6603 | pv1 = ""; |
6604 | cur1 = 0; | |
6605 | } | |
463ee0b2 | 6606 | else |
e01b9e88 | 6607 | pv1 = SvPV(sv1, cur1); |
79072805 | 6608 | |
e01b9e88 SC |
6609 | if (!sv2){ |
6610 | pv2 = ""; | |
6611 | cur2 = 0; | |
92d29cee | 6612 | } |
e01b9e88 SC |
6613 | else |
6614 | pv2 = SvPV(sv2, cur2); | |
79072805 | 6615 | |
cf48d248 | 6616 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
6617 | /* Differing utf8ness. |
6618 | * Do not UTF8size the comparands as a side-effect. */ | |
6619 | if (PL_encoding) { | |
6620 | if (SvUTF8(sv1)) { | |
553e1bcc AT |
6621 | svrecode = newSVpvn(pv2, cur2); |
6622 | sv_recode_to_utf8(svrecode, PL_encoding); | |
6623 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
6624 | } |
6625 | else { | |
553e1bcc AT |
6626 | svrecode = newSVpvn(pv1, cur1); |
6627 | sv_recode_to_utf8(svrecode, PL_encoding); | |
6628 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
6629 | } |
6630 | /* Now both are in UTF-8. */ | |
0a1bd7ac DM |
6631 | if (cur1 != cur2) { |
6632 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6633 | return FALSE; |
0a1bd7ac | 6634 | } |
799ef3cb JH |
6635 | } |
6636 | else { | |
6637 | bool is_utf8 = TRUE; | |
6638 | ||
6639 | if (SvUTF8(sv1)) { | |
6640 | /* sv1 is the UTF-8 one, | |
6641 | * if is equal it must be downgrade-able */ | |
e1ec3a88 | 6642 | char *pv = (char*)bytes_from_utf8((const U8*)pv1, |
799ef3cb JH |
6643 | &cur1, &is_utf8); |
6644 | if (pv != pv1) | |
553e1bcc | 6645 | pv1 = tpv = pv; |
799ef3cb JH |
6646 | } |
6647 | else { | |
6648 | /* sv2 is the UTF-8 one, | |
6649 | * if is equal it must be downgrade-able */ | |
e1ec3a88 | 6650 | char *pv = (char *)bytes_from_utf8((const U8*)pv2, |
799ef3cb JH |
6651 | &cur2, &is_utf8); |
6652 | if (pv != pv2) | |
553e1bcc | 6653 | pv2 = tpv = pv; |
799ef3cb JH |
6654 | } |
6655 | if (is_utf8) { | |
6656 | /* Downgrade not possible - cannot be eq */ | |
bf694877 | 6657 | assert (tpv == 0); |
799ef3cb JH |
6658 | return FALSE; |
6659 | } | |
6660 | } | |
cf48d248 JH |
6661 | } |
6662 | ||
6663 | if (cur1 == cur2) | |
765f542d | 6664 | eq = (pv1 == pv2) || memEQ(pv1, pv2, cur1); |
e01b9e88 | 6665 | |
553e1bcc AT |
6666 | if (svrecode) |
6667 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6668 | |
553e1bcc AT |
6669 | if (tpv) |
6670 | Safefree(tpv); | |
cf48d248 | 6671 | |
e01b9e88 | 6672 | return eq; |
79072805 LW |
6673 | } |
6674 | ||
954c1994 GS |
6675 | /* |
6676 | =for apidoc sv_cmp | |
6677 | ||
6678 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
6679 | string in C<sv1> is less than, equal to, or greater than the string in | |
645c22ef DM |
6680 | C<sv2>. Is UTF-8 and 'use bytes' aware, handles get magic, and will |
6681 | coerce its args to strings if necessary. See also C<sv_cmp_locale>. | |
954c1994 GS |
6682 | |
6683 | =cut | |
6684 | */ | |
6685 | ||
79072805 | 6686 | I32 |
e01b9e88 | 6687 | Perl_sv_cmp(pTHX_ register SV *sv1, register SV *sv2) |
79072805 | 6688 | { |
560a288e | 6689 | STRLEN cur1, cur2; |
e1ec3a88 AL |
6690 | const char *pv1, *pv2; |
6691 | char *tpv = Nullch; | |
cf48d248 | 6692 | I32 cmp; |
553e1bcc | 6693 | SV *svrecode = Nullsv; |
560a288e | 6694 | |
e01b9e88 SC |
6695 | if (!sv1) { |
6696 | pv1 = ""; | |
560a288e GS |
6697 | cur1 = 0; |
6698 | } | |
e01b9e88 SC |
6699 | else |
6700 | pv1 = SvPV(sv1, cur1); | |
560a288e | 6701 | |
553e1bcc | 6702 | if (!sv2) { |
e01b9e88 | 6703 | pv2 = ""; |
560a288e GS |
6704 | cur2 = 0; |
6705 | } | |
e01b9e88 SC |
6706 | else |
6707 | pv2 = SvPV(sv2, cur2); | |
79072805 | 6708 | |
cf48d248 | 6709 | if (cur1 && cur2 && SvUTF8(sv1) != SvUTF8(sv2) && !IN_BYTES) { |
799ef3cb JH |
6710 | /* Differing utf8ness. |
6711 | * Do not UTF8size the comparands as a side-effect. */ | |
cf48d248 | 6712 | if (SvUTF8(sv1)) { |
799ef3cb | 6713 | if (PL_encoding) { |
553e1bcc AT |
6714 | svrecode = newSVpvn(pv2, cur2); |
6715 | sv_recode_to_utf8(svrecode, PL_encoding); | |
6716 | pv2 = SvPV(svrecode, cur2); | |
799ef3cb JH |
6717 | } |
6718 | else { | |
e1ec3a88 | 6719 | pv2 = tpv = (char*)bytes_to_utf8((const U8*)pv2, &cur2); |
799ef3cb | 6720 | } |
cf48d248 JH |
6721 | } |
6722 | else { | |
799ef3cb | 6723 | if (PL_encoding) { |
553e1bcc AT |
6724 | svrecode = newSVpvn(pv1, cur1); |
6725 | sv_recode_to_utf8(svrecode, PL_encoding); | |
6726 | pv1 = SvPV(svrecode, cur1); | |
799ef3cb JH |
6727 | } |
6728 | else { | |
e1ec3a88 | 6729 | pv1 = tpv = (char*)bytes_to_utf8((const U8*)pv1, &cur1); |
799ef3cb | 6730 | } |
cf48d248 JH |
6731 | } |
6732 | } | |
6733 | ||
e01b9e88 | 6734 | if (!cur1) { |
cf48d248 | 6735 | cmp = cur2 ? -1 : 0; |
e01b9e88 | 6736 | } else if (!cur2) { |
cf48d248 JH |
6737 | cmp = 1; |
6738 | } else { | |
e1ec3a88 | 6739 | const I32 retval = memcmp((const void*)pv1, (const void*)pv2, cur1 < cur2 ? cur1 : cur2); |
e01b9e88 SC |
6740 | |
6741 | if (retval) { | |
cf48d248 | 6742 | cmp = retval < 0 ? -1 : 1; |
e01b9e88 | 6743 | } else if (cur1 == cur2) { |
cf48d248 JH |
6744 | cmp = 0; |
6745 | } else { | |
6746 | cmp = cur1 < cur2 ? -1 : 1; | |
e01b9e88 | 6747 | } |
cf48d248 | 6748 | } |
16660edb | 6749 | |
553e1bcc AT |
6750 | if (svrecode) |
6751 | SvREFCNT_dec(svrecode); | |
799ef3cb | 6752 | |
553e1bcc AT |
6753 | if (tpv) |
6754 | Safefree(tpv); | |
cf48d248 JH |
6755 | |
6756 | return cmp; | |
bbce6d69 | 6757 | } |
16660edb | 6758 | |
c461cf8f JH |
6759 | /* |
6760 | =for apidoc sv_cmp_locale | |
6761 | ||
645c22ef DM |
6762 | Compares the strings in two SVs in a locale-aware manner. Is UTF-8 and |
6763 | 'use bytes' aware, handles get magic, and will coerce its args to strings | |
6764 | if necessary. See also C<sv_cmp_locale>. See also C<sv_cmp>. | |
c461cf8f JH |
6765 | |
6766 | =cut | |
6767 | */ | |
6768 | ||
bbce6d69 | 6769 | I32 |
864dbfa3 | 6770 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 6771 | { |
36477c24 | 6772 | #ifdef USE_LOCALE_COLLATE |
16660edb | 6773 | |
bbce6d69 | 6774 | char *pv1, *pv2; |
6775 | STRLEN len1, len2; | |
6776 | I32 retval; | |
16660edb | 6777 | |
3280af22 | 6778 | if (PL_collation_standard) |
bbce6d69 | 6779 | goto raw_compare; |
16660edb | 6780 | |
bbce6d69 | 6781 | len1 = 0; |
8ac85365 | 6782 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 6783 | len2 = 0; |
8ac85365 | 6784 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 6785 | |
bbce6d69 | 6786 | if (!pv1 || !len1) { |
6787 | if (pv2 && len2) | |
6788 | return -1; | |
6789 | else | |
6790 | goto raw_compare; | |
6791 | } | |
6792 | else { | |
6793 | if (!pv2 || !len2) | |
6794 | return 1; | |
6795 | } | |
16660edb | 6796 | |
bbce6d69 | 6797 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 6798 | |
bbce6d69 | 6799 | if (retval) |
16660edb | 6800 | return retval < 0 ? -1 : 1; |
6801 | ||
bbce6d69 | 6802 | /* |
6803 | * When the result of collation is equality, that doesn't mean | |
6804 | * that there are no differences -- some locales exclude some | |
6805 | * characters from consideration. So to avoid false equalities, | |
6806 | * we use the raw string as a tiebreaker. | |
6807 | */ | |
16660edb | 6808 | |
bbce6d69 | 6809 | raw_compare: |
6810 | /* FALL THROUGH */ | |
16660edb | 6811 | |
36477c24 | 6812 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 6813 | |
bbce6d69 | 6814 | return sv_cmp(sv1, sv2); |
6815 | } | |
79072805 | 6816 | |
645c22ef | 6817 | |
36477c24 | 6818 | #ifdef USE_LOCALE_COLLATE |
645c22ef | 6819 | |
7a4c00b4 | 6820 | /* |
645c22ef DM |
6821 | =for apidoc sv_collxfrm |
6822 | ||
6823 | Add Collate Transform magic to an SV if it doesn't already have it. | |
6824 | ||
6825 | Any scalar variable may carry PERL_MAGIC_collxfrm magic that contains the | |
6826 | scalar data of the variable, but transformed to such a format that a normal | |
6827 | memory comparison can be used to compare the data according to the locale | |
6828 | settings. | |
6829 | ||
6830 | =cut | |
6831 | */ | |
6832 | ||
bbce6d69 | 6833 | char * |
864dbfa3 | 6834 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 6835 | { |
7a4c00b4 | 6836 | MAGIC *mg; |
16660edb | 6837 | |
14befaf4 | 6838 | mg = SvMAGICAL(sv) ? mg_find(sv, PERL_MAGIC_collxfrm) : (MAGIC *) NULL; |
3280af22 | 6839 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 6840 | char *s, *xf; |
6841 | STRLEN len, xlen; | |
6842 | ||
7a4c00b4 | 6843 | if (mg) |
6844 | Safefree(mg->mg_ptr); | |
bbce6d69 | 6845 | s = SvPV(sv, len); |
6846 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 6847 | if (SvREADONLY(sv)) { |
6848 | SAVEFREEPV(xf); | |
6849 | *nxp = xlen; | |
3280af22 | 6850 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 6851 | } |
7a4c00b4 | 6852 | if (! mg) { |
14befaf4 DM |
6853 | sv_magic(sv, 0, PERL_MAGIC_collxfrm, 0, 0); |
6854 | mg = mg_find(sv, PERL_MAGIC_collxfrm); | |
7a4c00b4 | 6855 | assert(mg); |
bbce6d69 | 6856 | } |
7a4c00b4 | 6857 | mg->mg_ptr = xf; |
565764a8 | 6858 | mg->mg_len = xlen; |
7a4c00b4 | 6859 | } |
6860 | else { | |
ff0cee69 | 6861 | if (mg) { |
6862 | mg->mg_ptr = NULL; | |
565764a8 | 6863 | mg->mg_len = -1; |
ff0cee69 | 6864 | } |
bbce6d69 | 6865 | } |
6866 | } | |
7a4c00b4 | 6867 | if (mg && mg->mg_ptr) { |
565764a8 | 6868 | *nxp = mg->mg_len; |
3280af22 | 6869 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 6870 | } |
6871 | else { | |
6872 | *nxp = 0; | |
6873 | return NULL; | |
16660edb | 6874 | } |
79072805 LW |
6875 | } |
6876 | ||
36477c24 | 6877 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 6878 | |
c461cf8f JH |
6879 | /* |
6880 | =for apidoc sv_gets | |
6881 | ||
6882 | Get a line from the filehandle and store it into the SV, optionally | |
6883 | appending to the currently-stored string. | |
6884 | ||
6885 | =cut | |
6886 | */ | |
6887 | ||
79072805 | 6888 | char * |
864dbfa3 | 6889 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 6890 | { |
e1ec3a88 | 6891 | const char *rsptr; |
c07a80fd | 6892 | STRLEN rslen; |
6893 | register STDCHAR rslast; | |
6894 | register STDCHAR *bp; | |
6895 | register I32 cnt; | |
9c5ffd7c | 6896 | I32 i = 0; |
8bfdd7d9 | 6897 | I32 rspara = 0; |
e311fd51 | 6898 | I32 recsize; |
c07a80fd | 6899 | |
bc44a8a2 NC |
6900 | if (SvTHINKFIRST(sv)) |
6901 | sv_force_normal_flags(sv, append ? 0 : SV_COW_DROP_PV); | |
765f542d NC |
6902 | /* XXX. If you make this PVIV, then copy on write can copy scalars read |
6903 | from <>. | |
6904 | However, perlbench says it's slower, because the existing swipe code | |
6905 | is faster than copy on write. | |
6906 | Swings and roundabouts. */ | |
6fc92669 | 6907 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 6908 | |
ff68c719 | 6909 | SvSCREAM_off(sv); |
efd8b2ba AE |
6910 | |
6911 | if (append) { | |
6912 | if (PerlIO_isutf8(fp)) { | |
6913 | if (!SvUTF8(sv)) { | |
6914 | sv_utf8_upgrade_nomg(sv); | |
6915 | sv_pos_u2b(sv,&append,0); | |
6916 | } | |
6917 | } else if (SvUTF8(sv)) { | |
6918 | SV *tsv = NEWSV(0,0); | |
6919 | sv_gets(tsv, fp, 0); | |
6920 | sv_utf8_upgrade_nomg(tsv); | |
6921 | SvCUR_set(sv,append); | |
6922 | sv_catsv(sv,tsv); | |
6923 | sv_free(tsv); | |
6924 | goto return_string_or_null; | |
6925 | } | |
6926 | } | |
6927 | ||
6928 | SvPOK_only(sv); | |
6929 | if (PerlIO_isutf8(fp)) | |
6930 | SvUTF8_on(sv); | |
c07a80fd | 6931 | |
923e4eb5 | 6932 | if (IN_PERL_COMPILETIME) { |
8bfdd7d9 HS |
6933 | /* we always read code in line mode */ |
6934 | rsptr = "\n"; | |
6935 | rslen = 1; | |
6936 | } | |
6937 | else if (RsSNARF(PL_rs)) { | |
7a5fa8a2 NIS |
6938 | /* If it is a regular disk file use size from stat() as estimate |
6939 | of amount we are going to read - may result in malloc-ing | |
6940 | more memory than we realy need if layers bellow reduce | |
e468d35b NIS |
6941 | size we read (e.g. CRLF or a gzip layer) |
6942 | */ | |
e311fd51 | 6943 | Stat_t st; |
e468d35b NIS |
6944 | if (!PerlLIO_fstat(PerlIO_fileno(fp), &st) && S_ISREG(st.st_mode)) { |
6945 | Off_t offset = PerlIO_tell(fp); | |
58f1856e | 6946 | if (offset != (Off_t) -1 && st.st_size + append > offset) { |
e468d35b NIS |
6947 | (void) SvGROW(sv, (STRLEN)((st.st_size - offset) + append + 1)); |
6948 | } | |
6949 | } | |
c07a80fd | 6950 | rsptr = NULL; |
6951 | rslen = 0; | |
6952 | } | |
3280af22 | 6953 | else if (RsRECORD(PL_rs)) { |
e311fd51 | 6954 | I32 bytesread; |
5b2b9c68 HM |
6955 | char *buffer; |
6956 | ||
6957 | /* Grab the size of the record we're getting */ | |
3280af22 | 6958 | recsize = SvIV(SvRV(PL_rs)); |
e311fd51 | 6959 | buffer = SvGROW(sv, (STRLEN)(recsize + append + 1)) + append; |
5b2b9c68 HM |
6960 | /* Go yank in */ |
6961 | #ifdef VMS | |
6962 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
6963 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
e468d35b NIS |
6964 | /* doing, but we've got no other real choice - except avoid stdio |
6965 | as implementation - perhaps write a :vms layer ? | |
6966 | */ | |
5b2b9c68 HM |
6967 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); |
6968 | #else | |
6969 | bytesread = PerlIO_read(fp, buffer, recsize); | |
6970 | #endif | |
27e6ca2d AE |
6971 | if (bytesread < 0) |
6972 | bytesread = 0; | |
e311fd51 | 6973 | SvCUR_set(sv, bytesread += append); |
e670df4e | 6974 | buffer[bytesread] = '\0'; |
efd8b2ba | 6975 | goto return_string_or_null; |
5b2b9c68 | 6976 | } |
3280af22 | 6977 | else if (RsPARA(PL_rs)) { |
c07a80fd | 6978 | rsptr = "\n\n"; |
6979 | rslen = 2; | |
8bfdd7d9 | 6980 | rspara = 1; |
c07a80fd | 6981 | } |
7d59b7e4 NIS |
6982 | else { |
6983 | /* Get $/ i.e. PL_rs into same encoding as stream wants */ | |
6984 | if (PerlIO_isutf8(fp)) { | |
6985 | rsptr = SvPVutf8(PL_rs, rslen); | |
6986 | } | |
6987 | else { | |
6988 | if (SvUTF8(PL_rs)) { | |
6989 | if (!sv_utf8_downgrade(PL_rs, TRUE)) { | |
6990 | Perl_croak(aTHX_ "Wide character in $/"); | |
6991 | } | |
6992 | } | |
6993 | rsptr = SvPV(PL_rs, rslen); | |
6994 | } | |
6995 | } | |
6996 | ||
c07a80fd | 6997 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
6998 | ||
8bfdd7d9 | 6999 | if (rspara) { /* have to do this both before and after */ |
79072805 | 7000 | do { /* to make sure file boundaries work right */ |
760ac839 | 7001 | if (PerlIO_eof(fp)) |
a0d0e21e | 7002 | return 0; |
760ac839 | 7003 | i = PerlIO_getc(fp); |
79072805 | 7004 | if (i != '\n') { |
a0d0e21e LW |
7005 | if (i == -1) |
7006 | return 0; | |
760ac839 | 7007 | PerlIO_ungetc(fp,i); |
79072805 LW |
7008 | break; |
7009 | } | |
7010 | } while (i != EOF); | |
7011 | } | |
c07a80fd | 7012 | |
760ac839 LW |
7013 | /* See if we know enough about I/O mechanism to cheat it ! */ |
7014 | ||
7015 | /* This used to be #ifdef test - it is made run-time test for ease | |
1c846c1f | 7016 | of abstracting out stdio interface. One call should be cheap |
760ac839 LW |
7017 | enough here - and may even be a macro allowing compile |
7018 | time optimization. | |
7019 | */ | |
7020 | ||
7021 | if (PerlIO_fast_gets(fp)) { | |
7022 | ||
7023 | /* | |
7024 | * We're going to steal some values from the stdio struct | |
7025 | * and put EVERYTHING in the innermost loop into registers. | |
7026 | */ | |
7027 | register STDCHAR *ptr; | |
7028 | STRLEN bpx; | |
7029 | I32 shortbuffered; | |
7030 | ||
16660edb | 7031 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
7032 | /* An ungetc()d char is handled separately from the regular | |
7033 | * buffer, so we getc() it back out and stuff it in the buffer. | |
7034 | */ | |
7035 | i = PerlIO_getc(fp); | |
7036 | if (i == EOF) return 0; | |
7037 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
7038 | (*fp)->_cnt++; | |
7039 | #endif | |
c07a80fd | 7040 | |
c2960299 | 7041 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 7042 | |
a20bf0c3 | 7043 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
e468d35b | 7044 | /* make sure we have the room */ |
7a5fa8a2 | 7045 | if ((I32)(SvLEN(sv) - append) <= cnt + 1) { |
e468d35b | 7046 | /* Not room for all of it |
7a5fa8a2 | 7047 | if we are looking for a separator and room for some |
e468d35b NIS |
7048 | */ |
7049 | if (rslen && cnt > 80 && (I32)SvLEN(sv) > append) { | |
7a5fa8a2 | 7050 | /* just process what we have room for */ |
79072805 LW |
7051 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
7052 | cnt -= shortbuffered; | |
7053 | } | |
7054 | else { | |
7055 | shortbuffered = 0; | |
bbce6d69 | 7056 | /* remember that cnt can be negative */ |
eb160463 | 7057 | SvGROW(sv, (STRLEN)(append + (cnt <= 0 ? 2 : (cnt + 1)))); |
79072805 LW |
7058 | } |
7059 | } | |
7a5fa8a2 | 7060 | else |
79072805 | 7061 | shortbuffered = 0; |
c07a80fd | 7062 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 7063 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 7064 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 7065 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 7066 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
ba7abf9d | 7067 | "Screamer: entering: PerlIO * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 7068 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 7069 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); |
79072805 LW |
7070 | for (;;) { |
7071 | screamer: | |
93a17b20 | 7072 | if (cnt > 0) { |
c07a80fd | 7073 | if (rslen) { |
760ac839 LW |
7074 | while (cnt > 0) { /* this | eat */ |
7075 | cnt--; | |
c07a80fd | 7076 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
7077 | goto thats_all_folks; /* screams | sed :-) */ | |
7078 | } | |
7079 | } | |
7080 | else { | |
1c846c1f NIS |
7081 | Copy(ptr, bp, cnt, char); /* this | eat */ |
7082 | bp += cnt; /* screams | dust */ | |
c07a80fd | 7083 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 | 7084 | cnt = 0; |
93a17b20 | 7085 | } |
79072805 LW |
7086 | } |
7087 | ||
748a9306 | 7088 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
7089 | cnt = shortbuffered; |
7090 | shortbuffered = 0; | |
c07a80fd | 7091 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
7092 | SvCUR_set(sv, bpx); |
7093 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 7094 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
7095 | continue; |
7096 | } | |
7097 | ||
16660edb | 7098 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
7099 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
7100 | PTR2UV(ptr),(long)cnt)); | |
cc00df79 | 7101 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* deregisterize cnt and ptr */ |
ba7abf9d | 7102 | #if 0 |
16660edb | 7103 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 7104 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 7105 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 7106 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 7107 | #endif |
1c846c1f | 7108 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 7109 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
7110 | another abstraction. */ | |
760ac839 | 7111 | i = PerlIO_getc(fp); /* get more characters */ |
ba7abf9d | 7112 | #if 0 |
16660edb | 7113 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 7114 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 7115 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 7116 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
ba7abf9d | 7117 | #endif |
a20bf0c3 JH |
7118 | cnt = PerlIO_get_cnt(fp); |
7119 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 7120 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 7121 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 7122 | |
748a9306 LW |
7123 | if (i == EOF) /* all done for ever? */ |
7124 | goto thats_really_all_folks; | |
7125 | ||
c07a80fd | 7126 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
7127 | SvCUR_set(sv, bpx); |
7128 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 7129 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
7130 | ||
eb160463 | 7131 | *bp++ = (STDCHAR)i; /* store character from PerlIO_getc */ |
79072805 | 7132 | |
c07a80fd | 7133 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 7134 | goto thats_all_folks; |
79072805 LW |
7135 | } |
7136 | ||
7137 | thats_all_folks: | |
eb160463 | 7138 | if ((rslen > 1 && (STRLEN)(bp - (STDCHAR*)SvPVX(sv)) < rslen) || |
36477c24 | 7139 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 7140 | goto screamer; /* go back to the fray */ |
79072805 LW |
7141 | thats_really_all_folks: |
7142 | if (shortbuffered) | |
7143 | cnt += shortbuffered; | |
16660edb | 7144 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 7145 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
cc00df79 | 7146 | PerlIO_set_ptrcnt(fp, (STDCHAR*)ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 7147 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 7148 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
1c846c1f | 7149 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), |
1d7c1841 | 7150 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); |
79072805 | 7151 | *bp = '\0'; |
760ac839 | 7152 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 7153 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 7154 | "Screamer: done, len=%ld, string=|%.*s|\n", |
7155 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
7156 | } |
7157 | else | |
79072805 | 7158 | { |
6edd2cd5 | 7159 | /*The big, slow, and stupid way. */ |
27da23d5 | 7160 | #ifdef USE_HEAP_INSTEAD_OF_STACK /* Even slower way. */ |
6edd2cd5 JH |
7161 | STDCHAR *buf = 0; |
7162 | New(0, buf, 8192, STDCHAR); | |
7163 | assert(buf); | |
4d2c4e07 | 7164 | #else |
6edd2cd5 | 7165 | STDCHAR buf[8192]; |
4d2c4e07 | 7166 | #endif |
79072805 | 7167 | |
760ac839 | 7168 | screamer2: |
c07a80fd | 7169 | if (rslen) { |
6867be6d | 7170 | const register STDCHAR *bpe = buf + sizeof(buf); |
760ac839 | 7171 | bp = buf; |
eb160463 | 7172 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = (STDCHAR)i) != rslast && bp < bpe) |
760ac839 LW |
7173 | ; /* keep reading */ |
7174 | cnt = bp - buf; | |
c07a80fd | 7175 | } |
7176 | else { | |
760ac839 | 7177 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 7178 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
7179 | * both args of ?: operator, causing EOF to change into 255 | |
7180 | */ | |
37be0adf | 7181 | if (cnt > 0) |
cbe9e203 JH |
7182 | i = (U8)buf[cnt - 1]; |
7183 | else | |
37be0adf | 7184 | i = EOF; |
c07a80fd | 7185 | } |
79072805 | 7186 | |
cbe9e203 JH |
7187 | if (cnt < 0) |
7188 | cnt = 0; /* we do need to re-set the sv even when cnt <= 0 */ | |
7189 | if (append) | |
7190 | sv_catpvn(sv, (char *) buf, cnt); | |
7191 | else | |
7192 | sv_setpvn(sv, (char *) buf, cnt); | |
c07a80fd | 7193 | |
7194 | if (i != EOF && /* joy */ | |
7195 | (!rslen || | |
7196 | SvCUR(sv) < rslen || | |
36477c24 | 7197 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
7198 | { |
7199 | append = -1; | |
63e4d877 CS |
7200 | /* |
7201 | * If we're reading from a TTY and we get a short read, | |
7202 | * indicating that the user hit his EOF character, we need | |
7203 | * to notice it now, because if we try to read from the TTY | |
7204 | * again, the EOF condition will disappear. | |
7205 | * | |
7206 | * The comparison of cnt to sizeof(buf) is an optimization | |
7207 | * that prevents unnecessary calls to feof(). | |
7208 | * | |
7209 | * - jik 9/25/96 | |
7210 | */ | |
7211 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
7212 | goto screamer2; | |
79072805 | 7213 | } |
6edd2cd5 | 7214 | |
27da23d5 | 7215 | #ifdef USE_HEAP_INSTEAD_OF_STACK |
6edd2cd5 JH |
7216 | Safefree(buf); |
7217 | #endif | |
79072805 LW |
7218 | } |
7219 | ||
8bfdd7d9 | 7220 | if (rspara) { /* have to do this both before and after */ |
c07a80fd | 7221 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 7222 | i = PerlIO_getc(fp); |
79072805 | 7223 | if (i != '\n') { |
760ac839 | 7224 | PerlIO_ungetc(fp,i); |
79072805 LW |
7225 | break; |
7226 | } | |
7227 | } | |
7228 | } | |
c07a80fd | 7229 | |
efd8b2ba | 7230 | return_string_or_null: |
c07a80fd | 7231 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 LW |
7232 | } |
7233 | ||
954c1994 GS |
7234 | /* |
7235 | =for apidoc sv_inc | |
7236 | ||
645c22ef DM |
7237 | Auto-increment of the value in the SV, doing string to numeric conversion |
7238 | if necessary. Handles 'get' magic. | |
954c1994 GS |
7239 | |
7240 | =cut | |
7241 | */ | |
7242 | ||
79072805 | 7243 | void |
864dbfa3 | 7244 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
7245 | { |
7246 | register char *d; | |
463ee0b2 | 7247 | int flags; |
79072805 LW |
7248 | |
7249 | if (!sv) | |
7250 | return; | |
b23a5f78 GB |
7251 | if (SvGMAGICAL(sv)) |
7252 | mg_get(sv); | |
ed6116ce | 7253 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
7254 | if (SvIsCOW(sv)) |
7255 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 7256 | if (SvREADONLY(sv)) { |
923e4eb5 | 7257 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 7258 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 7259 | } |
a0d0e21e | 7260 | if (SvROK(sv)) { |
b5be31e9 | 7261 | IV i; |
9e7bc3e8 JD |
7262 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
7263 | return; | |
56431972 | 7264 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
7265 | sv_unref(sv); |
7266 | sv_setiv(sv, i); | |
a0d0e21e | 7267 | } |
ed6116ce | 7268 | } |
8990e307 | 7269 | flags = SvFLAGS(sv); |
28e5dec8 JH |
7270 | if ((flags & (SVp_NOK|SVp_IOK)) == SVp_NOK) { |
7271 | /* It's (privately or publicly) a float, but not tested as an | |
7272 | integer, so test it to see. */ | |
d460ef45 | 7273 | (void) SvIV(sv); |
28e5dec8 JH |
7274 | flags = SvFLAGS(sv); |
7275 | } | |
7276 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { | |
7277 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 7278 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 7279 | oops_its_int: |
59d8ce62 | 7280 | #endif |
25da4f38 IZ |
7281 | if (SvIsUV(sv)) { |
7282 | if (SvUVX(sv) == UV_MAX) | |
a1e868e7 | 7283 | sv_setnv(sv, UV_MAX_P1); |
25da4f38 IZ |
7284 | else |
7285 | (void)SvIOK_only_UV(sv); | |
607fa7f2 | 7286 | SvUV_set(sv, SvUVX(sv) + 1); |
25da4f38 IZ |
7287 | } else { |
7288 | if (SvIVX(sv) == IV_MAX) | |
28e5dec8 | 7289 | sv_setuv(sv, (UV)IV_MAX + 1); |
25da4f38 IZ |
7290 | else { |
7291 | (void)SvIOK_only(sv); | |
45977657 | 7292 | SvIV_set(sv, SvIVX(sv) + 1); |
1c846c1f | 7293 | } |
55497cff | 7294 | } |
79072805 LW |
7295 | return; |
7296 | } | |
28e5dec8 JH |
7297 | if (flags & SVp_NOK) { |
7298 | (void)SvNOK_only(sv); | |
9d6ce603 | 7299 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
7300 | return; |
7301 | } | |
7302 | ||
8990e307 | 7303 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
28e5dec8 JH |
7304 | if ((flags & SVTYPEMASK) < SVt_PVIV) |
7305 | sv_upgrade(sv, SVt_IV); | |
7306 | (void)SvIOK_only(sv); | |
45977657 | 7307 | SvIV_set(sv, 1); |
79072805 LW |
7308 | return; |
7309 | } | |
463ee0b2 | 7310 | d = SvPVX(sv); |
79072805 LW |
7311 | while (isALPHA(*d)) d++; |
7312 | while (isDIGIT(*d)) d++; | |
7313 | if (*d) { | |
28e5dec8 | 7314 | #ifdef PERL_PRESERVE_IVUV |
d1be9408 | 7315 | /* Got to punt this as an integer if needs be, but we don't issue |
28e5dec8 JH |
7316 | warnings. Probably ought to make the sv_iv_please() that does |
7317 | the conversion if possible, and silently. */ | |
c2988b20 | 7318 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
7319 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
7320 | /* Need to try really hard to see if it's an integer. | |
7321 | 9.22337203685478e+18 is an integer. | |
7322 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
7323 | so $a="9.22337203685478e+18"; $a+0; $a++ | |
7324 | needs to be the same as $a="9.22337203685478e+18"; $a++ | |
7325 | or we go insane. */ | |
d460ef45 | 7326 | |
28e5dec8 JH |
7327 | (void) sv_2iv(sv); |
7328 | if (SvIOK(sv)) | |
7329 | goto oops_its_int; | |
7330 | ||
7331 | /* sv_2iv *should* have made this an NV */ | |
7332 | if (flags & SVp_NOK) { | |
7333 | (void)SvNOK_only(sv); | |
9d6ce603 | 7334 | SvNV_set(sv, SvNVX(sv) + 1.0); |
28e5dec8 JH |
7335 | return; |
7336 | } | |
7337 | /* I don't think we can get here. Maybe I should assert this | |
7338 | And if we do get here I suspect that sv_setnv will croak. NWC | |
7339 | Fall through. */ | |
7340 | #if defined(USE_LONG_DOUBLE) | |
7341 | 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", | |
7342 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
7343 | #else | |
1779d84d | 7344 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_inc punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
7345 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
7346 | #endif | |
7347 | } | |
7348 | #endif /* PERL_PRESERVE_IVUV */ | |
7349 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); | |
79072805 LW |
7350 | return; |
7351 | } | |
7352 | d--; | |
463ee0b2 | 7353 | while (d >= SvPVX(sv)) { |
79072805 LW |
7354 | if (isDIGIT(*d)) { |
7355 | if (++*d <= '9') | |
7356 | return; | |
7357 | *(d--) = '0'; | |
7358 | } | |
7359 | else { | |
9d116dd7 JH |
7360 | #ifdef EBCDIC |
7361 | /* MKS: The original code here died if letters weren't consecutive. | |
7362 | * at least it didn't have to worry about non-C locales. The | |
7363 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
1c846c1f | 7364 | * arranged in order (although not consecutively) and that only |
9d116dd7 JH |
7365 | * [A-Za-z] are accepted by isALPHA in the C locale. |
7366 | */ | |
7367 | if (*d != 'z' && *d != 'Z') { | |
7368 | do { ++*d; } while (!isALPHA(*d)); | |
7369 | return; | |
7370 | } | |
7371 | *(d--) -= 'z' - 'a'; | |
7372 | #else | |
79072805 LW |
7373 | ++*d; |
7374 | if (isALPHA(*d)) | |
7375 | return; | |
7376 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 7377 | #endif |
79072805 LW |
7378 | } |
7379 | } | |
7380 | /* oh,oh, the number grew */ | |
7381 | SvGROW(sv, SvCUR(sv) + 2); | |
b162af07 | 7382 | SvCUR_set(sv, SvCUR(sv) + 1); |
463ee0b2 | 7383 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
7384 | *d = d[-1]; |
7385 | if (isDIGIT(d[1])) | |
7386 | *d = '1'; | |
7387 | else | |
7388 | *d = d[1]; | |
7389 | } | |
7390 | ||
954c1994 GS |
7391 | /* |
7392 | =for apidoc sv_dec | |
7393 | ||
645c22ef DM |
7394 | Auto-decrement of the value in the SV, doing string to numeric conversion |
7395 | if necessary. Handles 'get' magic. | |
954c1994 GS |
7396 | |
7397 | =cut | |
7398 | */ | |
7399 | ||
79072805 | 7400 | void |
864dbfa3 | 7401 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 7402 | { |
463ee0b2 LW |
7403 | int flags; |
7404 | ||
79072805 LW |
7405 | if (!sv) |
7406 | return; | |
b23a5f78 GB |
7407 | if (SvGMAGICAL(sv)) |
7408 | mg_get(sv); | |
ed6116ce | 7409 | if (SvTHINKFIRST(sv)) { |
765f542d NC |
7410 | if (SvIsCOW(sv)) |
7411 | sv_force_normal_flags(sv, 0); | |
0f15f207 | 7412 | if (SvREADONLY(sv)) { |
923e4eb5 | 7413 | if (IN_PERL_RUNTIME) |
cea2e8a9 | 7414 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 7415 | } |
a0d0e21e | 7416 | if (SvROK(sv)) { |
b5be31e9 | 7417 | IV i; |
9e7bc3e8 JD |
7418 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
7419 | return; | |
56431972 | 7420 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
7421 | sv_unref(sv); |
7422 | sv_setiv(sv, i); | |
a0d0e21e | 7423 | } |
ed6116ce | 7424 | } |
28e5dec8 JH |
7425 | /* Unlike sv_inc we don't have to worry about string-never-numbers |
7426 | and keeping them magic. But we mustn't warn on punting */ | |
8990e307 | 7427 | flags = SvFLAGS(sv); |
28e5dec8 JH |
7428 | if ((flags & SVf_IOK) || ((flags & (SVp_IOK | SVp_NOK)) == SVp_IOK)) { |
7429 | /* It's publicly an integer, or privately an integer-not-float */ | |
59d8ce62 | 7430 | #ifdef PERL_PRESERVE_IVUV |
28e5dec8 | 7431 | oops_its_int: |
59d8ce62 | 7432 | #endif |
25da4f38 IZ |
7433 | if (SvIsUV(sv)) { |
7434 | if (SvUVX(sv) == 0) { | |
7435 | (void)SvIOK_only(sv); | |
45977657 | 7436 | SvIV_set(sv, -1); |
25da4f38 IZ |
7437 | } |
7438 | else { | |
7439 | (void)SvIOK_only_UV(sv); | |
607fa7f2 | 7440 | SvUV_set(sv, SvUVX(sv) + 1); |
1c846c1f | 7441 | } |
25da4f38 IZ |
7442 | } else { |
7443 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 7444 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
7445 | else { |
7446 | (void)SvIOK_only(sv); | |
45977657 | 7447 | SvIV_set(sv, SvIVX(sv) - 1); |
1c846c1f | 7448 | } |
55497cff | 7449 | } |
7450 | return; | |
7451 | } | |
28e5dec8 | 7452 | if (flags & SVp_NOK) { |
9d6ce603 | 7453 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
7454 | (void)SvNOK_only(sv); |
7455 | return; | |
7456 | } | |
8990e307 | 7457 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
7458 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
7459 | sv_upgrade(sv, SVt_NV); | |
f599b64b | 7460 | SvNV_set(sv, 1.0); |
a0d0e21e | 7461 | (void)SvNOK_only(sv); |
79072805 LW |
7462 | return; |
7463 | } | |
28e5dec8 JH |
7464 | #ifdef PERL_PRESERVE_IVUV |
7465 | { | |
c2988b20 | 7466 | int numtype = grok_number(SvPVX(sv), SvCUR(sv), NULL); |
28e5dec8 JH |
7467 | if (numtype && !(numtype & IS_NUMBER_INFINITY)) { |
7468 | /* Need to try really hard to see if it's an integer. | |
7469 | 9.22337203685478e+18 is an integer. | |
7470 | but "9.22337203685478e+18" + 0 is UV=9223372036854779904 | |
7471 | so $a="9.22337203685478e+18"; $a+0; $a-- | |
7472 | needs to be the same as $a="9.22337203685478e+18"; $a-- | |
7473 | or we go insane. */ | |
d460ef45 | 7474 | |
28e5dec8 JH |
7475 | (void) sv_2iv(sv); |
7476 | if (SvIOK(sv)) | |
7477 | goto oops_its_int; | |
7478 | ||
7479 | /* sv_2iv *should* have made this an NV */ | |
7480 | if (flags & SVp_NOK) { | |
7481 | (void)SvNOK_only(sv); | |
9d6ce603 | 7482 | SvNV_set(sv, SvNVX(sv) - 1.0); |
28e5dec8 JH |
7483 | return; |
7484 | } | |
7485 | /* I don't think we can get here. Maybe I should assert this | |
7486 | And if we do get here I suspect that sv_setnv will croak. NWC | |
7487 | Fall through. */ | |
7488 | #if defined(USE_LONG_DOUBLE) | |
7489 | 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", | |
7490 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); | |
7491 | #else | |
1779d84d | 7492 | DEBUG_c(PerlIO_printf(Perl_debug_log,"sv_dec punt failed to convert '%s' to IOK or NOKp, UV=0x%"UVxf" NV=%"NVgf"\n", |
28e5dec8 JH |
7493 | SvPVX(sv), SvIVX(sv), SvNVX(sv))); |
7494 | #endif | |
7495 | } | |
7496 | } | |
7497 | #endif /* PERL_PRESERVE_IVUV */ | |
097ee67d | 7498 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
7499 | } |
7500 | ||
954c1994 GS |
7501 | /* |
7502 | =for apidoc sv_mortalcopy | |
7503 | ||
645c22ef | 7504 | Creates a new SV which is a copy of the original SV (using C<sv_setsv>). |
d4236ebc DM |
7505 | The new SV is marked as mortal. It will be destroyed "soon", either by an |
7506 | explicit call to FREETMPS, or by an implicit call at places such as | |
7507 | statement boundaries. See also C<sv_newmortal> and C<sv_2mortal>. | |
954c1994 GS |
7508 | |
7509 | =cut | |
7510 | */ | |
7511 | ||
79072805 LW |
7512 | /* Make a string that will exist for the duration of the expression |
7513 | * evaluation. Actually, it may have to last longer than that, but | |
7514 | * hopefully we won't free it until it has been assigned to a | |
7515 | * permanent location. */ | |
7516 | ||
7517 | SV * | |
864dbfa3 | 7518 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 7519 | { |
463ee0b2 | 7520 | register SV *sv; |
b881518d | 7521 | |
4561caa4 | 7522 | new_SV(sv); |
79072805 | 7523 | sv_setsv(sv,oldstr); |
677b06e3 GS |
7524 | EXTEND_MORTAL(1); |
7525 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
7526 | SvTEMP_on(sv); |
7527 | return sv; | |
7528 | } | |
7529 | ||
954c1994 GS |
7530 | /* |
7531 | =for apidoc sv_newmortal | |
7532 | ||
645c22ef | 7533 | Creates a new null SV which is mortal. The reference count of the SV is |
d4236ebc DM |
7534 | set to 1. It will be destroyed "soon", either by an explicit call to |
7535 | FREETMPS, or by an implicit call at places such as statement boundaries. | |
7536 | See also C<sv_mortalcopy> and C<sv_2mortal>. | |
954c1994 GS |
7537 | |
7538 | =cut | |
7539 | */ | |
7540 | ||
8990e307 | 7541 | SV * |
864dbfa3 | 7542 | Perl_sv_newmortal(pTHX) |
8990e307 LW |
7543 | { |
7544 | register SV *sv; | |
7545 | ||
4561caa4 | 7546 | new_SV(sv); |
8990e307 | 7547 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
7548 | EXTEND_MORTAL(1); |
7549 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
7550 | return sv; |
7551 | } | |
7552 | ||
954c1994 GS |
7553 | /* |
7554 | =for apidoc sv_2mortal | |
7555 | ||
d4236ebc DM |
7556 | Marks an existing SV as mortal. The SV will be destroyed "soon", either |
7557 | by an explicit call to FREETMPS, or by an implicit call at places such as | |
37d2ac18 NC |
7558 | statement boundaries. SvTEMP() is turned on which means that the SV's |
7559 | string buffer can be "stolen" if this SV is copied. See also C<sv_newmortal> | |
7560 | and C<sv_mortalcopy>. | |
954c1994 GS |
7561 | |
7562 | =cut | |
7563 | */ | |
7564 | ||
79072805 | 7565 | SV * |
864dbfa3 | 7566 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 | 7567 | { |
27da23d5 | 7568 | dVAR; |
79072805 LW |
7569 | if (!sv) |
7570 | return sv; | |
d689ffdd | 7571 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 7572 | return sv; |
677b06e3 GS |
7573 | EXTEND_MORTAL(1); |
7574 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 7575 | SvTEMP_on(sv); |
79072805 LW |
7576 | return sv; |
7577 | } | |
7578 | ||
954c1994 GS |
7579 | /* |
7580 | =for apidoc newSVpv | |
7581 | ||
7582 | Creates a new SV and copies a string into it. The reference count for the | |
7583 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
7584 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
7585 | ||
7586 | =cut | |
7587 | */ | |
7588 | ||
79072805 | 7589 | SV * |
864dbfa3 | 7590 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 7591 | { |
463ee0b2 | 7592 | register SV *sv; |
79072805 | 7593 | |
4561caa4 | 7594 | new_SV(sv); |
79072805 LW |
7595 | if (!len) |
7596 | len = strlen(s); | |
7597 | sv_setpvn(sv,s,len); | |
7598 | return sv; | |
7599 | } | |
7600 | ||
954c1994 GS |
7601 | /* |
7602 | =for apidoc newSVpvn | |
7603 | ||
7604 | Creates a new SV and copies a string into it. The reference count for the | |
1c846c1f | 7605 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length |
954c1994 | 7606 | string. You are responsible for ensuring that the source string is at least |
9e09f5f2 | 7607 | C<len> bytes long. If the C<s> argument is NULL the new SV will be undefined. |
954c1994 GS |
7608 | |
7609 | =cut | |
7610 | */ | |
7611 | ||
9da1e3b5 | 7612 | SV * |
864dbfa3 | 7613 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
7614 | { |
7615 | register SV *sv; | |
7616 | ||
7617 | new_SV(sv); | |
9da1e3b5 MUN |
7618 | sv_setpvn(sv,s,len); |
7619 | return sv; | |
7620 | } | |
7621 | ||
1c846c1f NIS |
7622 | /* |
7623 | =for apidoc newSVpvn_share | |
7624 | ||
645c22ef DM |
7625 | Creates a new SV with its SvPVX pointing to a shared string in the string |
7626 | table. If the string does not already exist in the table, it is created | |
7627 | first. Turns on READONLY and FAKE. The string's hash is stored in the UV | |
7628 | slot of the SV; if the C<hash> parameter is non-zero, that value is used; | |
7629 | otherwise the hash is computed. The idea here is that as the string table | |
7630 | is used for shared hash keys these strings will have SvPVX == HeKEY and | |
7631 | hash lookup will avoid string compare. | |
1c846c1f NIS |
7632 | |
7633 | =cut | |
7634 | */ | |
7635 | ||
7636 | SV * | |
c3654f1a | 7637 | Perl_newSVpvn_share(pTHX_ const char *src, I32 len, U32 hash) |
1c846c1f NIS |
7638 | { |
7639 | register SV *sv; | |
c3654f1a IH |
7640 | bool is_utf8 = FALSE; |
7641 | if (len < 0) { | |
77caf834 | 7642 | STRLEN tmplen = -len; |
c3654f1a | 7643 | is_utf8 = TRUE; |
75a54232 | 7644 | /* See the note in hv.c:hv_fetch() --jhi */ |
e1ec3a88 | 7645 | src = (char*)bytes_from_utf8((const U8*)src, &tmplen, &is_utf8); |
75a54232 JH |
7646 | len = tmplen; |
7647 | } | |
1c846c1f | 7648 | if (!hash) |
5afd6d42 | 7649 | PERL_HASH(hash, src, len); |
1c846c1f NIS |
7650 | new_SV(sv); |
7651 | sv_upgrade(sv, SVt_PVIV); | |
f880fe2f | 7652 | SvPV_set(sv, sharepvn(src, is_utf8?-len:len, hash)); |
b162af07 | 7653 | SvCUR_set(sv, len); |
607fa7f2 | 7654 | SvUV_set(sv, hash); |
b162af07 | 7655 | SvLEN_set(sv, 0); |
1c846c1f NIS |
7656 | SvREADONLY_on(sv); |
7657 | SvFAKE_on(sv); | |
7658 | SvPOK_on(sv); | |
c3654f1a IH |
7659 | if (is_utf8) |
7660 | SvUTF8_on(sv); | |
1c846c1f NIS |
7661 | return sv; |
7662 | } | |
7663 | ||
645c22ef | 7664 | |
cea2e8a9 | 7665 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
7666 | |
7667 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
7668 | * version of the main function, (which may itself be aliased to us). | |
7669 | * Don't access this version directly. | |
7670 | */ | |
7671 | ||
46fc3d4c | 7672 | SV * |
cea2e8a9 | 7673 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 7674 | { |
cea2e8a9 | 7675 | dTHX; |
46fc3d4c | 7676 | register SV *sv; |
7677 | va_list args; | |
46fc3d4c | 7678 | va_start(args, pat); |
c5be433b | 7679 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 7680 | va_end(args); |
7681 | return sv; | |
7682 | } | |
cea2e8a9 | 7683 | #endif |
46fc3d4c | 7684 | |
954c1994 GS |
7685 | /* |
7686 | =for apidoc newSVpvf | |
7687 | ||
645c22ef | 7688 | Creates a new SV and initializes it with the string formatted like |
954c1994 GS |
7689 | C<sprintf>. |
7690 | ||
7691 | =cut | |
7692 | */ | |
7693 | ||
cea2e8a9 GS |
7694 | SV * |
7695 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
7696 | { | |
7697 | register SV *sv; | |
7698 | va_list args; | |
cea2e8a9 | 7699 | va_start(args, pat); |
c5be433b | 7700 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
7701 | va_end(args); |
7702 | return sv; | |
7703 | } | |
46fc3d4c | 7704 | |
645c22ef DM |
7705 | /* backend for newSVpvf() and newSVpvf_nocontext() */ |
7706 | ||
79072805 | 7707 | SV * |
c5be433b GS |
7708 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
7709 | { | |
7710 | register SV *sv; | |
7711 | new_SV(sv); | |
7712 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
7713 | return sv; | |
7714 | } | |
7715 | ||
954c1994 GS |
7716 | /* |
7717 | =for apidoc newSVnv | |
7718 | ||
7719 | Creates a new SV and copies a floating point value into it. | |
7720 | The reference count for the SV is set to 1. | |
7721 | ||
7722 | =cut | |
7723 | */ | |
7724 | ||
c5be433b | 7725 | SV * |
65202027 | 7726 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 7727 | { |
463ee0b2 | 7728 | register SV *sv; |
79072805 | 7729 | |
4561caa4 | 7730 | new_SV(sv); |
79072805 LW |
7731 | sv_setnv(sv,n); |
7732 | return sv; | |
7733 | } | |
7734 | ||
954c1994 GS |
7735 | /* |
7736 | =for apidoc newSViv | |
7737 | ||
7738 | Creates a new SV and copies an integer into it. The reference count for the | |
7739 | SV is set to 1. | |
7740 | ||
7741 | =cut | |
7742 | */ | |
7743 | ||
79072805 | 7744 | SV * |
864dbfa3 | 7745 | Perl_newSViv(pTHX_ IV i) |
79072805 | 7746 | { |
463ee0b2 | 7747 | register SV *sv; |
79072805 | 7748 | |
4561caa4 | 7749 | new_SV(sv); |
79072805 LW |
7750 | sv_setiv(sv,i); |
7751 | return sv; | |
7752 | } | |
7753 | ||
954c1994 | 7754 | /* |
1a3327fb JH |
7755 | =for apidoc newSVuv |
7756 | ||
7757 | Creates a new SV and copies an unsigned integer into it. | |
7758 | The reference count for the SV is set to 1. | |
7759 | ||
7760 | =cut | |
7761 | */ | |
7762 | ||
7763 | SV * | |
7764 | Perl_newSVuv(pTHX_ UV u) | |
7765 | { | |
7766 | register SV *sv; | |
7767 | ||
7768 | new_SV(sv); | |
7769 | sv_setuv(sv,u); | |
7770 | return sv; | |
7771 | } | |
7772 | ||
7773 | /* | |
954c1994 GS |
7774 | =for apidoc newRV_noinc |
7775 | ||
7776 | Creates an RV wrapper for an SV. The reference count for the original | |
7777 | SV is B<not> incremented. | |
7778 | ||
7779 | =cut | |
7780 | */ | |
7781 | ||
2304df62 | 7782 | SV * |
864dbfa3 | 7783 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 AD |
7784 | { |
7785 | register SV *sv; | |
7786 | ||
4561caa4 | 7787 | new_SV(sv); |
2304df62 | 7788 | sv_upgrade(sv, SVt_RV); |
76e3520e | 7789 | SvTEMP_off(tmpRef); |
b162af07 | 7790 | SvRV_set(sv, tmpRef); |
2304df62 | 7791 | SvROK_on(sv); |
2304df62 AD |
7792 | return sv; |
7793 | } | |
7794 | ||
ff276b08 | 7795 | /* newRV_inc is the official function name to use now. |
645c22ef DM |
7796 | * newRV_inc is in fact #defined to newRV in sv.h |
7797 | */ | |
7798 | ||
5f05dabc | 7799 | SV * |
864dbfa3 | 7800 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 7801 | { |
5f6447b6 | 7802 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 7803 | } |
5f05dabc | 7804 | |
954c1994 GS |
7805 | /* |
7806 | =for apidoc newSVsv | |
7807 | ||
7808 | Creates a new SV which is an exact duplicate of the original SV. | |
645c22ef | 7809 | (Uses C<sv_setsv>). |
954c1994 GS |
7810 | |
7811 | =cut | |
7812 | */ | |
7813 | ||
79072805 | 7814 | SV * |
864dbfa3 | 7815 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 7816 | { |
463ee0b2 | 7817 | register SV *sv; |
79072805 LW |
7818 | |
7819 | if (!old) | |
7820 | return Nullsv; | |
8990e307 | 7821 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 | 7822 | if (ckWARN_d(WARN_INTERNAL)) |
9014280d | 7823 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), "semi-panic: attempt to dup freed string"); |
79072805 LW |
7824 | return Nullsv; |
7825 | } | |
4561caa4 | 7826 | new_SV(sv); |
e90aabeb NC |
7827 | /* SV_GMAGIC is the default for sv_setv() |
7828 | SV_NOSTEAL prevents TEMP buffers being, well, stolen, and saves games | |
7829 | with SvTEMP_off and SvTEMP_on round a call to sv_setsv. */ | |
7830 | sv_setsv_flags(sv, old, SV_GMAGIC | SV_NOSTEAL); | |
463ee0b2 | 7831 | return sv; |
79072805 LW |
7832 | } |
7833 | ||
645c22ef DM |
7834 | /* |
7835 | =for apidoc sv_reset | |
7836 | ||
7837 | Underlying implementation for the C<reset> Perl function. | |
7838 | Note that the perl-level function is vaguely deprecated. | |
7839 | ||
7840 | =cut | |
7841 | */ | |
7842 | ||
79072805 | 7843 | void |
e1ec3a88 | 7844 | Perl_sv_reset(pTHX_ register const char *s, HV *stash) |
79072805 | 7845 | { |
27da23d5 | 7846 | dVAR; |
79072805 LW |
7847 | register HE *entry; |
7848 | register GV *gv; | |
7849 | register SV *sv; | |
7850 | register I32 i; | |
7851 | register PMOP *pm; | |
7852 | register I32 max; | |
4802d5d7 | 7853 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 7854 | |
49d8d3a1 MB |
7855 | if (!stash) |
7856 | return; | |
7857 | ||
79072805 LW |
7858 | if (!*s) { /* reset ?? searches */ |
7859 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 7860 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
7861 | } |
7862 | return; | |
7863 | } | |
7864 | ||
7865 | /* reset variables */ | |
7866 | ||
7867 | if (!HvARRAY(stash)) | |
7868 | return; | |
463ee0b2 LW |
7869 | |
7870 | Zero(todo, 256, char); | |
79072805 | 7871 | while (*s) { |
4802d5d7 | 7872 | i = (unsigned char)*s; |
79072805 LW |
7873 | if (s[1] == '-') { |
7874 | s += 2; | |
7875 | } | |
4802d5d7 | 7876 | max = (unsigned char)*s++; |
79072805 | 7877 | for ( ; i <= max; i++) { |
463ee0b2 LW |
7878 | todo[i] = 1; |
7879 | } | |
a0d0e21e | 7880 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 7881 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
7882 | entry; |
7883 | entry = HeNEXT(entry)) | |
7884 | { | |
1edc1566 | 7885 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 7886 | continue; |
1edc1566 | 7887 | gv = (GV*)HeVAL(entry); |
79072805 | 7888 | sv = GvSV(gv); |
9e35f4b3 GS |
7889 | if (SvTHINKFIRST(sv)) { |
7890 | if (!SvREADONLY(sv) && SvROK(sv)) | |
7891 | sv_unref(sv); | |
7892 | continue; | |
7893 | } | |
0c34ef67 | 7894 | SvOK_off(sv); |
79072805 LW |
7895 | if (SvTYPE(sv) >= SVt_PV) { |
7896 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
7897 | if (SvPVX(sv) != Nullch) |
7898 | *SvPVX(sv) = '\0'; | |
44a8e56a | 7899 | SvTAINT(sv); |
79072805 LW |
7900 | } |
7901 | if (GvAV(gv)) { | |
7902 | av_clear(GvAV(gv)); | |
7903 | } | |
44a8e56a | 7904 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 7905 | hv_clear(GvHV(gv)); |
2f42fcb0 | 7906 | #ifndef PERL_MICRO |
fa6a1c44 | 7907 | #ifdef USE_ENVIRON_ARRAY |
4efc5df6 GS |
7908 | if (gv == PL_envgv |
7909 | # ifdef USE_ITHREADS | |
7910 | && PL_curinterp == aTHX | |
7911 | # endif | |
7912 | ) | |
7913 | { | |
79072805 | 7914 | environ[0] = Nullch; |
4efc5df6 | 7915 | } |
a0d0e21e | 7916 | #endif |
2f42fcb0 | 7917 | #endif /* !PERL_MICRO */ |
79072805 LW |
7918 | } |
7919 | } | |
7920 | } | |
7921 | } | |
7922 | } | |
7923 | ||
645c22ef DM |
7924 | /* |
7925 | =for apidoc sv_2io | |
7926 | ||
7927 | Using various gambits, try to get an IO from an SV: the IO slot if its a | |
7928 | GV; or the recursive result if we're an RV; or the IO slot of the symbol | |
7929 | named after the PV if we're a string. | |
7930 | ||
7931 | =cut | |
7932 | */ | |
7933 | ||
46fc3d4c | 7934 | IO* |
864dbfa3 | 7935 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 7936 | { |
7937 | IO* io; | |
7938 | GV* gv; | |
7939 | ||
7940 | switch (SvTYPE(sv)) { | |
7941 | case SVt_PVIO: | |
7942 | io = (IO*)sv; | |
7943 | break; | |
7944 | case SVt_PVGV: | |
7945 | gv = (GV*)sv; | |
7946 | io = GvIO(gv); | |
7947 | if (!io) | |
cea2e8a9 | 7948 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 7949 | break; |
7950 | default: | |
7951 | if (!SvOK(sv)) | |
cea2e8a9 | 7952 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 7953 | if (SvROK(sv)) |
7954 | return sv_2io(SvRV(sv)); | |
7a5fd60d | 7955 | gv = gv_fetchsv(sv, FALSE, SVt_PVIO); |
46fc3d4c | 7956 | if (gv) |
7957 | io = GvIO(gv); | |
7958 | else | |
7959 | io = 0; | |
7960 | if (!io) | |
35c1215d | 7961 | Perl_croak(aTHX_ "Bad filehandle: %"SVf, sv); |
46fc3d4c | 7962 | break; |
7963 | } | |
7964 | return io; | |
7965 | } | |
7966 | ||
645c22ef DM |
7967 | /* |
7968 | =for apidoc sv_2cv | |
7969 | ||
7970 | Using various gambits, try to get a CV from an SV; in addition, try if | |
7971 | possible to set C<*st> and C<*gvp> to the stash and GV associated with it. | |
7972 | ||
7973 | =cut | |
7974 | */ | |
7975 | ||
79072805 | 7976 | CV * |
864dbfa3 | 7977 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 | 7978 | { |
27da23d5 | 7979 | dVAR; |
c04a4dfe JH |
7980 | GV *gv = Nullgv; |
7981 | CV *cv = Nullcv; | |
79072805 LW |
7982 | |
7983 | if (!sv) | |
93a17b20 | 7984 | return *gvp = Nullgv, Nullcv; |
79072805 | 7985 | switch (SvTYPE(sv)) { |
79072805 LW |
7986 | case SVt_PVCV: |
7987 | *st = CvSTASH(sv); | |
7988 | *gvp = Nullgv; | |
7989 | return (CV*)sv; | |
7990 | case SVt_PVHV: | |
7991 | case SVt_PVAV: | |
7992 | *gvp = Nullgv; | |
7993 | return Nullcv; | |
8990e307 LW |
7994 | case SVt_PVGV: |
7995 | gv = (GV*)sv; | |
a0d0e21e | 7996 | *gvp = gv; |
8990e307 LW |
7997 | *st = GvESTASH(gv); |
7998 | goto fix_gv; | |
7999 | ||
79072805 | 8000 | default: |
a0d0e21e LW |
8001 | if (SvGMAGICAL(sv)) |
8002 | mg_get(sv); | |
8003 | if (SvROK(sv)) { | |
f5284f61 IZ |
8004 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
8005 | tryAMAGICunDEREF(to_cv); | |
8006 | ||
62f274bf GS |
8007 | sv = SvRV(sv); |
8008 | if (SvTYPE(sv) == SVt_PVCV) { | |
8009 | cv = (CV*)sv; | |
8010 | *gvp = Nullgv; | |
8011 | *st = CvSTASH(cv); | |
8012 | return cv; | |
8013 | } | |
8014 | else if(isGV(sv)) | |
8015 | gv = (GV*)sv; | |
8016 | else | |
cea2e8a9 | 8017 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 8018 | } |
62f274bf | 8019 | else if (isGV(sv)) |
79072805 LW |
8020 | gv = (GV*)sv; |
8021 | else | |
7a5fd60d | 8022 | gv = gv_fetchsv(sv, lref, SVt_PVCV); |
79072805 LW |
8023 | *gvp = gv; |
8024 | if (!gv) | |
8025 | return Nullcv; | |
8026 | *st = GvESTASH(gv); | |
8990e307 | 8027 | fix_gv: |
8ebc5c01 | 8028 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 8029 | SV *tmpsv; |
748a9306 | 8030 | ENTER; |
4633a7c4 | 8031 | tmpsv = NEWSV(704,0); |
16660edb | 8032 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
8033 | /* XXX this is probably not what they think they're getting. |
8034 | * It has the same effect as "sub name;", i.e. just a forward | |
8035 | * declaration! */ | |
774d564b | 8036 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
8037 | newSVOP(OP_CONST, 0, tmpsv), |
8038 | Nullop, | |
8990e307 | 8039 | Nullop); |
748a9306 | 8040 | LEAVE; |
8ebc5c01 | 8041 | if (!GvCVu(gv)) |
35c1215d NC |
8042 | Perl_croak(aTHX_ "Unable to create sub named \"%"SVf"\"", |
8043 | sv); | |
8990e307 | 8044 | } |
8ebc5c01 | 8045 | return GvCVu(gv); |
79072805 LW |
8046 | } |
8047 | } | |
8048 | ||
c461cf8f JH |
8049 | /* |
8050 | =for apidoc sv_true | |
8051 | ||
8052 | Returns true if the SV has a true value by Perl's rules. | |
645c22ef DM |
8053 | Use the C<SvTRUE> macro instead, which may call C<sv_true()> or may |
8054 | instead use an in-line version. | |
c461cf8f JH |
8055 | |
8056 | =cut | |
8057 | */ | |
8058 | ||
79072805 | 8059 | I32 |
864dbfa3 | 8060 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 8061 | { |
8990e307 LW |
8062 | if (!sv) |
8063 | return 0; | |
79072805 | 8064 | if (SvPOK(sv)) { |
e1ec3a88 | 8065 | const register XPV* tXpv; |
4e35701f | 8066 | if ((tXpv = (XPV*)SvANY(sv)) && |
c2f1de04 | 8067 | (tXpv->xpv_cur > 1 || |
4e35701f | 8068 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
8069 | return 1; |
8070 | else | |
8071 | return 0; | |
8072 | } | |
8073 | else { | |
8074 | if (SvIOK(sv)) | |
463ee0b2 | 8075 | return SvIVX(sv) != 0; |
79072805 LW |
8076 | else { |
8077 | if (SvNOK(sv)) | |
463ee0b2 | 8078 | return SvNVX(sv) != 0.0; |
79072805 | 8079 | else |
463ee0b2 | 8080 | return sv_2bool(sv); |
79072805 LW |
8081 | } |
8082 | } | |
8083 | } | |
79072805 | 8084 | |
645c22ef DM |
8085 | /* |
8086 | =for apidoc sv_iv | |
8087 | ||
8088 | A private implementation of the C<SvIVx> macro for compilers which can't | |
8089 | cope with complex macro expressions. Always use the macro instead. | |
8090 | ||
8091 | =cut | |
8092 | */ | |
8093 | ||
ff68c719 | 8094 | IV |
864dbfa3 | 8095 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 8096 | { |
25da4f38 IZ |
8097 | if (SvIOK(sv)) { |
8098 | if (SvIsUV(sv)) | |
8099 | return (IV)SvUVX(sv); | |
ff68c719 | 8100 | return SvIVX(sv); |
25da4f38 | 8101 | } |
ff68c719 | 8102 | return sv_2iv(sv); |
85e6fe83 | 8103 | } |
85e6fe83 | 8104 | |
645c22ef DM |
8105 | /* |
8106 | =for apidoc sv_uv | |
8107 | ||
8108 | A private implementation of the C<SvUVx> macro for compilers which can't | |
8109 | cope with complex macro expressions. Always use the macro instead. | |
8110 | ||
8111 | =cut | |
8112 | */ | |
8113 | ||
ff68c719 | 8114 | UV |
864dbfa3 | 8115 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 8116 | { |
25da4f38 IZ |
8117 | if (SvIOK(sv)) { |
8118 | if (SvIsUV(sv)) | |
8119 | return SvUVX(sv); | |
8120 | return (UV)SvIVX(sv); | |
8121 | } | |
ff68c719 | 8122 | return sv_2uv(sv); |
8123 | } | |
85e6fe83 | 8124 | |
645c22ef DM |
8125 | /* |
8126 | =for apidoc sv_nv | |
8127 | ||
8128 | A private implementation of the C<SvNVx> macro for compilers which can't | |
8129 | cope with complex macro expressions. Always use the macro instead. | |
8130 | ||
8131 | =cut | |
8132 | */ | |
8133 | ||
65202027 | 8134 | NV |
864dbfa3 | 8135 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 8136 | { |
ff68c719 | 8137 | if (SvNOK(sv)) |
8138 | return SvNVX(sv); | |
8139 | return sv_2nv(sv); | |
79072805 | 8140 | } |
79072805 | 8141 | |
09540bc3 JH |
8142 | /* sv_pv() is now a macro using SvPV_nolen(); |
8143 | * this function provided for binary compatibility only | |
8144 | */ | |
8145 | ||
8146 | char * | |
8147 | Perl_sv_pv(pTHX_ SV *sv) | |
8148 | { | |
8149 | STRLEN n_a; | |
8150 | ||
8151 | if (SvPOK(sv)) | |
8152 | return SvPVX(sv); | |
8153 | ||
8154 | return sv_2pv(sv, &n_a); | |
8155 | } | |
8156 | ||
645c22ef DM |
8157 | /* |
8158 | =for apidoc sv_pv | |
8159 | ||
baca2b92 | 8160 | Use the C<SvPV_nolen> macro instead |
645c22ef | 8161 | |
645c22ef DM |
8162 | =for apidoc sv_pvn |
8163 | ||
8164 | A private implementation of the C<SvPV> macro for compilers which can't | |
8165 | cope with complex macro expressions. Always use the macro instead. | |
8166 | ||
8167 | =cut | |
8168 | */ | |
8169 | ||
1fa8b10d | 8170 | char * |
864dbfa3 | 8171 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 8172 | { |
85e6fe83 LW |
8173 | if (SvPOK(sv)) { |
8174 | *lp = SvCUR(sv); | |
a0d0e21e | 8175 | return SvPVX(sv); |
85e6fe83 | 8176 | } |
463ee0b2 | 8177 | return sv_2pv(sv, lp); |
79072805 | 8178 | } |
79072805 | 8179 | |
6e9d1081 NC |
8180 | |
8181 | char * | |
8182 | Perl_sv_pvn_nomg(pTHX_ register SV *sv, STRLEN *lp) | |
8183 | { | |
8184 | if (SvPOK(sv)) { | |
8185 | *lp = SvCUR(sv); | |
8186 | return SvPVX(sv); | |
8187 | } | |
8188 | return sv_2pv_flags(sv, lp, 0); | |
8189 | } | |
8190 | ||
09540bc3 JH |
8191 | /* sv_pvn_force() is now a macro using Perl_sv_pvn_force_flags(); |
8192 | * this function provided for binary compatibility only | |
8193 | */ | |
8194 | ||
8195 | char * | |
8196 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) | |
8197 | { | |
8198 | return sv_pvn_force_flags(sv, lp, SV_GMAGIC); | |
8199 | } | |
8200 | ||
c461cf8f JH |
8201 | /* |
8202 | =for apidoc sv_pvn_force | |
8203 | ||
8204 | Get a sensible string out of the SV somehow. | |
645c22ef DM |
8205 | A private implementation of the C<SvPV_force> macro for compilers which |
8206 | can't cope with complex macro expressions. Always use the macro instead. | |
c461cf8f | 8207 | |
8d6d96c1 HS |
8208 | =for apidoc sv_pvn_force_flags |
8209 | ||
8210 | Get a sensible string out of the SV somehow. | |
8211 | If C<flags> has C<SV_GMAGIC> bit set, will C<mg_get> on C<sv> if | |
8212 | appropriate, else not. C<sv_pvn_force> and C<sv_pvn_force_nomg> are | |
8213 | implemented in terms of this function. | |
645c22ef DM |
8214 | You normally want to use the various wrapper macros instead: see |
8215 | C<SvPV_force> and C<SvPV_force_nomg> | |
8d6d96c1 HS |
8216 | |
8217 | =cut | |
8218 | */ | |
8219 | ||
8220 | char * | |
8221 | Perl_sv_pvn_force_flags(pTHX_ SV *sv, STRLEN *lp, I32 flags) | |
8222 | { | |
c04a4dfe | 8223 | char *s = NULL; |
a0d0e21e | 8224 | |
6fc92669 | 8225 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
765f542d | 8226 | sv_force_normal_flags(sv, 0); |
1c846c1f | 8227 | |
a0d0e21e LW |
8228 | if (SvPOK(sv)) { |
8229 | *lp = SvCUR(sv); | |
8230 | } | |
8231 | else { | |
748a9306 | 8232 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
cea2e8a9 | 8233 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
53e06cf0 | 8234 | OP_NAME(PL_op)); |
a0d0e21e | 8235 | } |
4633a7c4 | 8236 | else |
8d6d96c1 | 8237 | s = sv_2pv_flags(sv, lp, flags); |
a0d0e21e LW |
8238 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
8239 | STRLEN len = *lp; | |
1c846c1f | 8240 | |
a0d0e21e LW |
8241 | if (SvROK(sv)) |
8242 | sv_unref(sv); | |
8243 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
8244 | SvGROW(sv, len + 1); | |
8245 | Move(s,SvPVX(sv),len,char); | |
8246 | SvCUR_set(sv, len); | |
8247 | *SvEND(sv) = '\0'; | |
8248 | } | |
8249 | if (!SvPOK(sv)) { | |
8250 | SvPOK_on(sv); /* validate pointer */ | |
8251 | SvTAINT(sv); | |
1d7c1841 GS |
8252 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
8253 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
8254 | } |
8255 | } | |
8256 | return SvPVX(sv); | |
8257 | } | |
8258 | ||
09540bc3 JH |
8259 | /* sv_pvbyte () is now a macro using Perl_sv_2pv_flags(); |
8260 | * this function provided for binary compatibility only | |
8261 | */ | |
8262 | ||
8263 | char * | |
8264 | Perl_sv_pvbyte(pTHX_ SV *sv) | |
8265 | { | |
8266 | sv_utf8_downgrade(sv,0); | |
8267 | return sv_pv(sv); | |
8268 | } | |
8269 | ||
645c22ef DM |
8270 | /* |
8271 | =for apidoc sv_pvbyte | |
8272 | ||
baca2b92 | 8273 | Use C<SvPVbyte_nolen> instead. |
645c22ef | 8274 | |
645c22ef DM |
8275 | =for apidoc sv_pvbyten |
8276 | ||
8277 | A private implementation of the C<SvPVbyte> macro for compilers | |
8278 | which can't cope with complex macro expressions. Always use the macro | |
8279 | instead. | |
8280 | ||
8281 | =cut | |
8282 | */ | |
8283 | ||
7340a771 GS |
8284 | char * |
8285 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
8286 | { | |
ffebcc3e | 8287 | sv_utf8_downgrade(sv,0); |
7340a771 GS |
8288 | return sv_pvn(sv,lp); |
8289 | } | |
8290 | ||
645c22ef DM |
8291 | /* |
8292 | =for apidoc sv_pvbyten_force | |
8293 | ||
8294 | A private implementation of the C<SvPVbytex_force> macro for compilers | |
8295 | which can't cope with complex macro expressions. Always use the macro | |
8296 | instead. | |
8297 | ||
8298 | =cut | |
8299 | */ | |
8300 | ||
7340a771 GS |
8301 | char * |
8302 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
8303 | { | |
46ec2f14 | 8304 | sv_pvn_force(sv,lp); |
ffebcc3e | 8305 | sv_utf8_downgrade(sv,0); |
46ec2f14 TS |
8306 | *lp = SvCUR(sv); |
8307 | return SvPVX(sv); | |
7340a771 GS |
8308 | } |
8309 | ||
09540bc3 JH |
8310 | /* sv_pvutf8 () is now a macro using Perl_sv_2pv_flags(); |
8311 | * this function provided for binary compatibility only | |
8312 | */ | |
8313 | ||
8314 | char * | |
8315 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
8316 | { | |
8317 | sv_utf8_upgrade(sv); | |
8318 | return sv_pv(sv); | |
8319 | } | |
8320 | ||
645c22ef DM |
8321 | /* |
8322 | =for apidoc sv_pvutf8 | |
8323 | ||
baca2b92 | 8324 | Use the C<SvPVutf8_nolen> macro instead |
645c22ef | 8325 | |
645c22ef DM |
8326 | =for apidoc sv_pvutf8n |
8327 | ||
8328 | A private implementation of the C<SvPVutf8> macro for compilers | |
8329 | which can't cope with complex macro expressions. Always use the macro | |
8330 | instead. | |
8331 | ||
8332 | =cut | |
8333 | */ | |
8334 | ||
7340a771 GS |
8335 | char * |
8336 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
8337 | { | |
560a288e | 8338 | sv_utf8_upgrade(sv); |
7340a771 GS |
8339 | return sv_pvn(sv,lp); |
8340 | } | |
8341 | ||
c461cf8f JH |
8342 | /* |
8343 | =for apidoc sv_pvutf8n_force | |
8344 | ||
645c22ef DM |
8345 | A private implementation of the C<SvPVutf8_force> macro for compilers |
8346 | which can't cope with complex macro expressions. Always use the macro | |
8347 | instead. | |
c461cf8f JH |
8348 | |
8349 | =cut | |
8350 | */ | |
8351 | ||
7340a771 GS |
8352 | char * |
8353 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
8354 | { | |
46ec2f14 | 8355 | sv_pvn_force(sv,lp); |
560a288e | 8356 | sv_utf8_upgrade(sv); |
46ec2f14 TS |
8357 | *lp = SvCUR(sv); |
8358 | return SvPVX(sv); | |
7340a771 GS |
8359 | } |
8360 | ||
c461cf8f JH |
8361 | /* |
8362 | =for apidoc sv_reftype | |
8363 | ||
8364 | Returns a string describing what the SV is a reference to. | |
8365 | ||
8366 | =cut | |
8367 | */ | |
8368 | ||
1cb0ed9b | 8369 | char * |
bfed75c6 | 8370 | Perl_sv_reftype(pTHX_ const SV *sv, int ob) |
a0d0e21e | 8371 | { |
07409e01 NC |
8372 | /* The fact that I don't need to downcast to char * everywhere, only in ?: |
8373 | inside return suggests a const propagation bug in g++. */ | |
c86bf373 | 8374 | if (ob && SvOBJECT(sv)) { |
1cb0ed9b | 8375 | char *name = HvNAME(SvSTASH(sv)); |
07409e01 | 8376 | return name ? name : (char *) "__ANON__"; |
c86bf373 | 8377 | } |
a0d0e21e LW |
8378 | else { |
8379 | switch (SvTYPE(sv)) { | |
8380 | case SVt_NULL: | |
8381 | case SVt_IV: | |
8382 | case SVt_NV: | |
8383 | case SVt_RV: | |
8384 | case SVt_PV: | |
8385 | case SVt_PVIV: | |
8386 | case SVt_PVNV: | |
8387 | case SVt_PVMG: | |
8388 | case SVt_PVBM: | |
1cb0ed9b | 8389 | if (SvVOK(sv)) |
439cb1c4 | 8390 | return "VSTRING"; |
a0d0e21e LW |
8391 | if (SvROK(sv)) |
8392 | return "REF"; | |
8393 | else | |
8394 | return "SCALAR"; | |
1cb0ed9b | 8395 | |
07409e01 | 8396 | case SVt_PVLV: return (char *) (SvROK(sv) ? "REF" |
be65207d DM |
8397 | /* tied lvalues should appear to be |
8398 | * scalars for backwards compatitbility */ | |
8399 | : (LvTYPE(sv) == 't' || LvTYPE(sv) == 'T') | |
07409e01 | 8400 | ? "SCALAR" : "LVALUE"); |
a0d0e21e LW |
8401 | case SVt_PVAV: return "ARRAY"; |
8402 | case SVt_PVHV: return "HASH"; | |
8403 | case SVt_PVCV: return "CODE"; | |
8404 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 8405 | case SVt_PVFM: return "FORMAT"; |
27f9d8f3 | 8406 | case SVt_PVIO: return "IO"; |
a0d0e21e LW |
8407 | default: return "UNKNOWN"; |
8408 | } | |
8409 | } | |
8410 | } | |
8411 | ||
954c1994 GS |
8412 | /* |
8413 | =for apidoc sv_isobject | |
8414 | ||
8415 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
8416 | object. If the SV is not an RV, or if the object is not blessed, then this | |
8417 | will return false. | |
8418 | ||
8419 | =cut | |
8420 | */ | |
8421 | ||
463ee0b2 | 8422 | int |
864dbfa3 | 8423 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 8424 | { |
68dc0745 | 8425 | if (!sv) |
8426 | return 0; | |
8427 | if (SvGMAGICAL(sv)) | |
8428 | mg_get(sv); | |
85e6fe83 LW |
8429 | if (!SvROK(sv)) |
8430 | return 0; | |
8431 | sv = (SV*)SvRV(sv); | |
8432 | if (!SvOBJECT(sv)) | |
8433 | return 0; | |
8434 | return 1; | |
8435 | } | |
8436 | ||
954c1994 GS |
8437 | /* |
8438 | =for apidoc sv_isa | |
8439 | ||
8440 | Returns a boolean indicating whether the SV is blessed into the specified | |
8441 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
8442 | an inheritance relationship. | |
8443 | ||
8444 | =cut | |
8445 | */ | |
8446 | ||
85e6fe83 | 8447 | int |
864dbfa3 | 8448 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 8449 | { |
68dc0745 | 8450 | if (!sv) |
8451 | return 0; | |
8452 | if (SvGMAGICAL(sv)) | |
8453 | mg_get(sv); | |
ed6116ce | 8454 | if (!SvROK(sv)) |
463ee0b2 | 8455 | return 0; |
ed6116ce LW |
8456 | sv = (SV*)SvRV(sv); |
8457 | if (!SvOBJECT(sv)) | |
463ee0b2 | 8458 | return 0; |
e27ad1f2 AV |
8459 | if (!HvNAME(SvSTASH(sv))) |
8460 | return 0; | |
463ee0b2 LW |
8461 | |
8462 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
8463 | } | |
8464 | ||
954c1994 GS |
8465 | /* |
8466 | =for apidoc newSVrv | |
8467 | ||
8468 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
8469 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
8470 | be blessed in the specified package. The new SV is returned and its | |
8471 | reference count is 1. | |
8472 | ||
8473 | =cut | |
8474 | */ | |
8475 | ||
463ee0b2 | 8476 | SV* |
864dbfa3 | 8477 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 8478 | { |
463ee0b2 LW |
8479 | SV *sv; |
8480 | ||
4561caa4 | 8481 | new_SV(sv); |
51cf62d8 | 8482 | |
765f542d | 8483 | SV_CHECK_THINKFIRST_COW_DROP(rv); |
51cf62d8 | 8484 | SvAMAGIC_off(rv); |
51cf62d8 | 8485 | |
0199fce9 JD |
8486 | if (SvTYPE(rv) >= SVt_PVMG) { |
8487 | U32 refcnt = SvREFCNT(rv); | |
8488 | SvREFCNT(rv) = 0; | |
8489 | sv_clear(rv); | |
8490 | SvFLAGS(rv) = 0; | |
8491 | SvREFCNT(rv) = refcnt; | |
8492 | } | |
8493 | ||
51cf62d8 | 8494 | if (SvTYPE(rv) < SVt_RV) |
0199fce9 JD |
8495 | sv_upgrade(rv, SVt_RV); |
8496 | else if (SvTYPE(rv) > SVt_RV) { | |
8bd4d4c5 | 8497 | SvPV_free(rv); |
0199fce9 JD |
8498 | SvCUR_set(rv, 0); |
8499 | SvLEN_set(rv, 0); | |
8500 | } | |
51cf62d8 | 8501 | |
0c34ef67 | 8502 | SvOK_off(rv); |
b162af07 | 8503 | SvRV_set(rv, sv); |
ed6116ce | 8504 | SvROK_on(rv); |
463ee0b2 | 8505 | |
a0d0e21e LW |
8506 | if (classname) { |
8507 | HV* stash = gv_stashpv(classname, TRUE); | |
8508 | (void)sv_bless(rv, stash); | |
8509 | } | |
8510 | return sv; | |
8511 | } | |
8512 | ||
954c1994 GS |
8513 | /* |
8514 | =for apidoc sv_setref_pv | |
8515 | ||
8516 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
8517 | argument will be upgraded to an RV. That RV will be modified to point to | |
8518 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
8519 | into the SV. The C<classname> argument indicates the package for the | |
8520 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8521 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
8522 | |
8523 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
8524 | objects will become corrupted by the pointer copy process. | |
8525 | ||
8526 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
8527 | ||
8528 | =cut | |
8529 | */ | |
8530 | ||
a0d0e21e | 8531 | SV* |
864dbfa3 | 8532 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 8533 | { |
189b2af5 | 8534 | if (!pv) { |
3280af22 | 8535 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
8536 | SvSETMAGIC(rv); |
8537 | } | |
a0d0e21e | 8538 | else |
56431972 | 8539 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
8540 | return rv; |
8541 | } | |
8542 | ||
954c1994 GS |
8543 | /* |
8544 | =for apidoc sv_setref_iv | |
8545 | ||
8546 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
8547 | argument will be upgraded to an RV. That RV will be modified to point to | |
8548 | the new SV. The C<classname> argument indicates the package for the | |
8549 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8550 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
8551 | |
8552 | =cut | |
8553 | */ | |
8554 | ||
a0d0e21e | 8555 | SV* |
864dbfa3 | 8556 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
8557 | { |
8558 | sv_setiv(newSVrv(rv,classname), iv); | |
8559 | return rv; | |
8560 | } | |
8561 | ||
954c1994 | 8562 | /* |
e1c57cef JH |
8563 | =for apidoc sv_setref_uv |
8564 | ||
8565 | Copies an unsigned integer into a new SV, optionally blessing the SV. The C<rv> | |
8566 | argument will be upgraded to an RV. That RV will be modified to point to | |
8567 | the new SV. The C<classname> argument indicates the package for the | |
8568 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8569 | will have a reference count of 1, and the RV will be returned. |
e1c57cef JH |
8570 | |
8571 | =cut | |
8572 | */ | |
8573 | ||
8574 | SV* | |
8575 | Perl_sv_setref_uv(pTHX_ SV *rv, const char *classname, UV uv) | |
8576 | { | |
8577 | sv_setuv(newSVrv(rv,classname), uv); | |
8578 | return rv; | |
8579 | } | |
8580 | ||
8581 | /* | |
954c1994 GS |
8582 | =for apidoc sv_setref_nv |
8583 | ||
8584 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
8585 | argument will be upgraded to an RV. That RV will be modified to point to | |
8586 | the new SV. The C<classname> argument indicates the package for the | |
8587 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
d34c2299 | 8588 | will have a reference count of 1, and the RV will be returned. |
954c1994 GS |
8589 | |
8590 | =cut | |
8591 | */ | |
8592 | ||
a0d0e21e | 8593 | SV* |
65202027 | 8594 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
8595 | { |
8596 | sv_setnv(newSVrv(rv,classname), nv); | |
8597 | return rv; | |
8598 | } | |
463ee0b2 | 8599 | |
954c1994 GS |
8600 | /* |
8601 | =for apidoc sv_setref_pvn | |
8602 | ||
8603 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
8604 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
8605 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
8606 | argument indicates the package for the blessing. Set C<classname> to | |
7a5fa8a2 | 8607 | C<Nullch> to avoid the blessing. The new SV will have a reference count |
d34c2299 | 8608 | of 1, and the RV will be returned. |
954c1994 GS |
8609 | |
8610 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
8611 | ||
8612 | =cut | |
8613 | */ | |
8614 | ||
a0d0e21e | 8615 | SV* |
864dbfa3 | 8616 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
8617 | { |
8618 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
8619 | return rv; |
8620 | } | |
8621 | ||
954c1994 GS |
8622 | /* |
8623 | =for apidoc sv_bless | |
8624 | ||
8625 | Blesses an SV into a specified package. The SV must be an RV. The package | |
8626 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
8627 | of the SV is unaffected. | |
8628 | ||
8629 | =cut | |
8630 | */ | |
8631 | ||
a0d0e21e | 8632 | SV* |
864dbfa3 | 8633 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 8634 | { |
76e3520e | 8635 | SV *tmpRef; |
a0d0e21e | 8636 | if (!SvROK(sv)) |
cea2e8a9 | 8637 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
8638 | tmpRef = SvRV(sv); |
8639 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
8640 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 8641 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
8642 | if (SvOBJECT(tmpRef)) { |
8643 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 8644 | --PL_sv_objcount; |
76e3520e | 8645 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 8646 | } |
a0d0e21e | 8647 | } |
76e3520e GS |
8648 | SvOBJECT_on(tmpRef); |
8649 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 8650 | ++PL_sv_objcount; |
76e3520e | 8651 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
b162af07 | 8652 | SvSTASH_set(tmpRef, (HV*)SvREFCNT_inc(stash)); |
a0d0e21e | 8653 | |
2e3febc6 CS |
8654 | if (Gv_AMG(stash)) |
8655 | SvAMAGIC_on(sv); | |
8656 | else | |
8657 | SvAMAGIC_off(sv); | |
a0d0e21e | 8658 | |
1edbfb88 AB |
8659 | if(SvSMAGICAL(tmpRef)) |
8660 | if(mg_find(tmpRef, PERL_MAGIC_ext) || mg_find(tmpRef, PERL_MAGIC_uvar)) | |
8661 | mg_set(tmpRef); | |
8662 | ||
8663 | ||
ecdeb87c | 8664 | |
a0d0e21e LW |
8665 | return sv; |
8666 | } | |
8667 | ||
645c22ef | 8668 | /* Downgrades a PVGV to a PVMG. |
645c22ef DM |
8669 | */ |
8670 | ||
76e3520e | 8671 | STATIC void |
cea2e8a9 | 8672 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 8673 | { |
850fabdf GS |
8674 | void *xpvmg; |
8675 | ||
a0d0e21e LW |
8676 | assert(SvTYPE(sv) == SVt_PVGV); |
8677 | SvFAKE_off(sv); | |
8678 | if (GvGP(sv)) | |
1edc1566 | 8679 | gp_free((GV*)sv); |
e826b3c7 GS |
8680 | if (GvSTASH(sv)) { |
8681 | SvREFCNT_dec(GvSTASH(sv)); | |
8682 | GvSTASH(sv) = Nullhv; | |
8683 | } | |
14befaf4 | 8684 | sv_unmagic(sv, PERL_MAGIC_glob); |
a0d0e21e | 8685 | Safefree(GvNAME(sv)); |
a5f75d66 | 8686 | GvMULTI_off(sv); |
850fabdf GS |
8687 | |
8688 | /* need to keep SvANY(sv) in the right arena */ | |
8689 | xpvmg = new_XPVMG(); | |
8690 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
8691 | del_XPVGV(SvANY(sv)); | |
8692 | SvANY(sv) = xpvmg; | |
8693 | ||
a0d0e21e LW |
8694 | SvFLAGS(sv) &= ~SVTYPEMASK; |
8695 | SvFLAGS(sv) |= SVt_PVMG; | |
8696 | } | |
8697 | ||
954c1994 | 8698 | /* |
840a7b70 | 8699 | =for apidoc sv_unref_flags |
954c1994 GS |
8700 | |
8701 | Unsets the RV status of the SV, and decrements the reference count of | |
8702 | whatever was being referenced by the RV. This can almost be thought of | |
840a7b70 IZ |
8703 | as a reversal of C<newSVrv>. The C<cflags> argument can contain |
8704 | C<SV_IMMEDIATE_UNREF> to force the reference count to be decremented | |
8705 | (otherwise the decrementing is conditional on the reference count being | |
8706 | different from one or the reference being a readonly SV). | |
7889fe52 | 8707 | See C<SvROK_off>. |
954c1994 GS |
8708 | |
8709 | =cut | |
8710 | */ | |
8711 | ||
ed6116ce | 8712 | void |
840a7b70 | 8713 | Perl_sv_unref_flags(pTHX_ SV *sv, U32 flags) |
ed6116ce | 8714 | { |
a0d0e21e | 8715 | SV* rv = SvRV(sv); |
810b8aa5 GS |
8716 | |
8717 | if (SvWEAKREF(sv)) { | |
8718 | sv_del_backref(sv); | |
8719 | SvWEAKREF_off(sv); | |
b162af07 | 8720 | SvRV_set(sv, NULL); |
810b8aa5 GS |
8721 | return; |
8722 | } | |
b162af07 | 8723 | SvRV_set(sv, NULL); |
ed6116ce | 8724 | SvROK_off(sv); |
04ca4930 NC |
8725 | /* You can't have a || SvREADONLY(rv) here, as $a = $$a, where $a was |
8726 | assigned to as BEGIN {$a = \"Foo"} will fail. */ | |
8727 | if (SvREFCNT(rv) != 1 || (flags & SV_IMMEDIATE_UNREF)) | |
4633a7c4 | 8728 | SvREFCNT_dec(rv); |
840a7b70 | 8729 | else /* XXX Hack, but hard to make $a=$a->[1] work otherwise */ |
4633a7c4 | 8730 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 8731 | } |
8990e307 | 8732 | |
840a7b70 IZ |
8733 | /* |
8734 | =for apidoc sv_unref | |
8735 | ||
8736 | Unsets the RV status of the SV, and decrements the reference count of | |
8737 | whatever was being referenced by the RV. This can almost be thought of | |
8738 | as a reversal of C<newSVrv>. This is C<sv_unref_flags> with the C<flag> | |
7889fe52 | 8739 | being zero. See C<SvROK_off>. |
840a7b70 IZ |
8740 | |
8741 | =cut | |
8742 | */ | |
8743 | ||
8744 | void | |
8745 | Perl_sv_unref(pTHX_ SV *sv) | |
8746 | { | |
8747 | sv_unref_flags(sv, 0); | |
8748 | } | |
8749 | ||
645c22ef DM |
8750 | /* |
8751 | =for apidoc sv_taint | |
8752 | ||
8753 | Taint an SV. Use C<SvTAINTED_on> instead. | |
8754 | =cut | |
8755 | */ | |
8756 | ||
bbce6d69 | 8757 | void |
864dbfa3 | 8758 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 8759 | { |
14befaf4 | 8760 | sv_magic((sv), Nullsv, PERL_MAGIC_taint, Nullch, 0); |
bbce6d69 | 8761 | } |
8762 | ||
645c22ef DM |
8763 | /* |
8764 | =for apidoc sv_untaint | |
8765 | ||
8766 | Untaint an SV. Use C<SvTAINTED_off> instead. | |
8767 | =cut | |
8768 | */ | |
8769 | ||
bbce6d69 | 8770 | void |
864dbfa3 | 8771 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 8772 | { |
13f57bf8 | 8773 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 8774 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
36477c24 | 8775 | if (mg) |
565764a8 | 8776 | mg->mg_len &= ~1; |
36477c24 | 8777 | } |
bbce6d69 | 8778 | } |
8779 | ||
645c22ef DM |
8780 | /* |
8781 | =for apidoc sv_tainted | |
8782 | ||
8783 | Test an SV for taintedness. Use C<SvTAINTED> instead. | |
8784 | =cut | |
8785 | */ | |
8786 | ||
bbce6d69 | 8787 | bool |
864dbfa3 | 8788 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 8789 | { |
13f57bf8 | 8790 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
14befaf4 | 8791 | MAGIC *mg = mg_find(sv, PERL_MAGIC_taint); |
155aba94 | 8792 | if (mg && ((mg->mg_len & 1) || ((mg->mg_len & 2) && mg->mg_obj == sv))) |
36477c24 | 8793 | return TRUE; |
8794 | } | |
8795 | return FALSE; | |
bbce6d69 | 8796 | } |
8797 | ||
09540bc3 JH |
8798 | /* |
8799 | =for apidoc sv_setpviv | |
8800 | ||
8801 | Copies an integer into the given SV, also updating its string value. | |
8802 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
8803 | ||
8804 | =cut | |
8805 | */ | |
8806 | ||
8807 | void | |
8808 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) | |
8809 | { | |
8810 | char buf[TYPE_CHARS(UV)]; | |
8811 | char *ebuf; | |
8812 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
8813 | ||
8814 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8815 | } | |
8816 | ||
8817 | /* | |
8818 | =for apidoc sv_setpviv_mg | |
8819 | ||
8820 | Like C<sv_setpviv>, but also handles 'set' magic. | |
8821 | ||
8822 | =cut | |
8823 | */ | |
8824 | ||
8825 | void | |
8826 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) | |
8827 | { | |
8828 | char buf[TYPE_CHARS(UV)]; | |
8829 | char *ebuf; | |
8830 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
8831 | ||
8832 | sv_setpvn(sv, ptr, ebuf - ptr); | |
8833 | SvSETMAGIC(sv); | |
8834 | } | |
8835 | ||
cea2e8a9 | 8836 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8837 | |
8838 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8839 | * version of the main function, (which may itself be aliased to us). | |
8840 | * Don't access this version directly. | |
8841 | */ | |
8842 | ||
cea2e8a9 GS |
8843 | void |
8844 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
8845 | { | |
8846 | dTHX; | |
8847 | va_list args; | |
8848 | va_start(args, pat); | |
c5be433b | 8849 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
8850 | va_end(args); |
8851 | } | |
8852 | ||
645c22ef DM |
8853 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8854 | * version of the main function, (which may itself be aliased to us). | |
8855 | * Don't access this version directly. | |
8856 | */ | |
cea2e8a9 GS |
8857 | |
8858 | void | |
8859 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8860 | { | |
8861 | dTHX; | |
8862 | va_list args; | |
8863 | va_start(args, pat); | |
c5be433b | 8864 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 8865 | va_end(args); |
cea2e8a9 GS |
8866 | } |
8867 | #endif | |
8868 | ||
954c1994 GS |
8869 | /* |
8870 | =for apidoc sv_setpvf | |
8871 | ||
bffc3d17 SH |
8872 | Works like C<sv_catpvf> but copies the text into the SV instead of |
8873 | appending it. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
954c1994 GS |
8874 | |
8875 | =cut | |
8876 | */ | |
8877 | ||
46fc3d4c | 8878 | void |
864dbfa3 | 8879 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8880 | { |
8881 | va_list args; | |
46fc3d4c | 8882 | va_start(args, pat); |
c5be433b | 8883 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 8884 | va_end(args); |
8885 | } | |
8886 | ||
bffc3d17 SH |
8887 | /* |
8888 | =for apidoc sv_vsetpvf | |
8889 | ||
8890 | Works like C<sv_vcatpvf> but copies the text into the SV instead of | |
8891 | appending it. Does not handle 'set' magic. See C<sv_vsetpvf_mg>. | |
8892 | ||
8893 | Usually used via its frontend C<sv_setpvf>. | |
8894 | ||
8895 | =cut | |
8896 | */ | |
645c22ef | 8897 | |
c5be433b GS |
8898 | void |
8899 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
8900 | { | |
8901 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
8902 | } | |
ef50df4b | 8903 | |
954c1994 GS |
8904 | /* |
8905 | =for apidoc sv_setpvf_mg | |
8906 | ||
8907 | Like C<sv_setpvf>, but also handles 'set' magic. | |
8908 | ||
8909 | =cut | |
8910 | */ | |
8911 | ||
ef50df4b | 8912 | void |
864dbfa3 | 8913 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
8914 | { |
8915 | va_list args; | |
ef50df4b | 8916 | va_start(args, pat); |
c5be433b | 8917 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 8918 | va_end(args); |
c5be433b GS |
8919 | } |
8920 | ||
bffc3d17 SH |
8921 | /* |
8922 | =for apidoc sv_vsetpvf_mg | |
8923 | ||
8924 | Like C<sv_vsetpvf>, but also handles 'set' magic. | |
8925 | ||
8926 | Usually used via its frontend C<sv_setpvf_mg>. | |
8927 | ||
8928 | =cut | |
8929 | */ | |
645c22ef | 8930 | |
c5be433b GS |
8931 | void |
8932 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
8933 | { | |
8934 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
8935 | SvSETMAGIC(sv); |
8936 | } | |
8937 | ||
cea2e8a9 | 8938 | #if defined(PERL_IMPLICIT_CONTEXT) |
645c22ef DM |
8939 | |
8940 | /* pTHX_ magic can't cope with varargs, so this is a no-context | |
8941 | * version of the main function, (which may itself be aliased to us). | |
8942 | * Don't access this version directly. | |
8943 | */ | |
8944 | ||
cea2e8a9 GS |
8945 | void |
8946 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
8947 | { | |
8948 | dTHX; | |
8949 | va_list args; | |
8950 | va_start(args, pat); | |
c5be433b | 8951 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
8952 | va_end(args); |
8953 | } | |
8954 | ||
645c22ef DM |
8955 | /* pTHX_ magic can't cope with varargs, so this is a no-context |
8956 | * version of the main function, (which may itself be aliased to us). | |
8957 | * Don't access this version directly. | |
8958 | */ | |
8959 | ||
cea2e8a9 GS |
8960 | void |
8961 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
8962 | { | |
8963 | dTHX; | |
8964 | va_list args; | |
8965 | va_start(args, pat); | |
c5be433b | 8966 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 8967 | va_end(args); |
cea2e8a9 GS |
8968 | } |
8969 | #endif | |
8970 | ||
954c1994 GS |
8971 | /* |
8972 | =for apidoc sv_catpvf | |
8973 | ||
d5ce4a7c GA |
8974 | Processes its arguments like C<sprintf> and appends the formatted |
8975 | output to an SV. If the appended data contains "wide" characters | |
8976 | (including, but not limited to, SVs with a UTF-8 PV formatted with %s, | |
8977 | and characters >255 formatted with %c), the original SV might get | |
bffc3d17 | 8978 | upgraded to UTF-8. Handles 'get' magic, but not 'set' magic. See |
cdd94ca7 NC |
8979 | C<sv_catpvf_mg>. If the original SV was UTF-8, the pattern should be |
8980 | valid UTF-8; if the original SV was bytes, the pattern should be too. | |
954c1994 | 8981 | |
d5ce4a7c | 8982 | =cut */ |
954c1994 | 8983 | |
46fc3d4c | 8984 | void |
864dbfa3 | 8985 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 8986 | { |
8987 | va_list args; | |
46fc3d4c | 8988 | va_start(args, pat); |
c5be433b | 8989 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 8990 | va_end(args); |
8991 | } | |
8992 | ||
bffc3d17 SH |
8993 | /* |
8994 | =for apidoc sv_vcatpvf | |
8995 | ||
8996 | Processes its arguments like C<vsprintf> and appends the formatted output | |
8997 | to an SV. Does not handle 'set' magic. See C<sv_vcatpvf_mg>. | |
8998 | ||
8999 | Usually used via its frontend C<sv_catpvf>. | |
9000 | ||
9001 | =cut | |
9002 | */ | |
645c22ef | 9003 | |
ef50df4b | 9004 | void |
c5be433b GS |
9005 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
9006 | { | |
9007 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
9008 | } | |
9009 | ||
954c1994 GS |
9010 | /* |
9011 | =for apidoc sv_catpvf_mg | |
9012 | ||
9013 | Like C<sv_catpvf>, but also handles 'set' magic. | |
9014 | ||
9015 | =cut | |
9016 | */ | |
9017 | ||
c5be433b | 9018 | void |
864dbfa3 | 9019 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
9020 | { |
9021 | va_list args; | |
ef50df4b | 9022 | va_start(args, pat); |
c5be433b | 9023 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 9024 | va_end(args); |
c5be433b GS |
9025 | } |
9026 | ||
bffc3d17 SH |
9027 | /* |
9028 | =for apidoc sv_vcatpvf_mg | |
9029 | ||
9030 | Like C<sv_vcatpvf>, but also handles 'set' magic. | |
9031 | ||
9032 | Usually used via its frontend C<sv_catpvf_mg>. | |
9033 | ||
9034 | =cut | |
9035 | */ | |
645c22ef | 9036 | |
c5be433b GS |
9037 | void |
9038 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
9039 | { | |
9040 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
9041 | SvSETMAGIC(sv); |
9042 | } | |
9043 | ||
954c1994 GS |
9044 | /* |
9045 | =for apidoc sv_vsetpvfn | |
9046 | ||
bffc3d17 | 9047 | Works like C<sv_vcatpvfn> but copies the text into the SV instead of |
954c1994 GS |
9048 | appending it. |
9049 | ||
bffc3d17 | 9050 | Usually used via one of its frontends C<sv_vsetpvf> and C<sv_vsetpvf_mg>. |
645c22ef | 9051 | |
954c1994 GS |
9052 | =cut |
9053 | */ | |
9054 | ||
46fc3d4c | 9055 | void |
7d5ea4e7 | 9056 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 9057 | { |
9058 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 9059 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 9060 | } |
9061 | ||
645c22ef DM |
9062 | /* private function for use in sv_vcatpvfn via the EXPECT_NUMBER macro */ |
9063 | ||
2d00ba3b | 9064 | STATIC I32 |
9dd79c3f | 9065 | S_expect_number(pTHX_ char** pattern) |
211dfcf1 HS |
9066 | { |
9067 | I32 var = 0; | |
9068 | switch (**pattern) { | |
9069 | case '1': case '2': case '3': | |
9070 | case '4': case '5': case '6': | |
9071 | case '7': case '8': case '9': | |
9072 | while (isDIGIT(**pattern)) | |
9073 | var = var * 10 + (*(*pattern)++ - '0'); | |
9074 | } | |
9075 | return var; | |
9076 | } | |
9dd79c3f | 9077 | #define EXPECT_NUMBER(pattern, var) (var = S_expect_number(aTHX_ &pattern)) |
211dfcf1 | 9078 | |
4151a5fe IZ |
9079 | static char * |
9080 | F0convert(NV nv, char *endbuf, STRLEN *len) | |
9081 | { | |
9082 | int neg = nv < 0; | |
9083 | UV uv; | |
9084 | char *p = endbuf; | |
9085 | ||
9086 | if (neg) | |
9087 | nv = -nv; | |
9088 | if (nv < UV_MAX) { | |
9089 | nv += 0.5; | |
028f8eaa | 9090 | uv = (UV)nv; |
4151a5fe IZ |
9091 | if (uv & 1 && uv == nv) |
9092 | uv--; /* Round to even */ | |
9093 | do { | |
9094 | unsigned dig = uv % 10; | |
9095 | *--p = '0' + dig; | |
9096 | } while (uv /= 10); | |
9097 | if (neg) | |
9098 | *--p = '-'; | |
9099 | *len = endbuf - p; | |
9100 | return p; | |
9101 | } | |
9102 | return Nullch; | |
9103 | } | |
9104 | ||
9105 | ||
954c1994 GS |
9106 | /* |
9107 | =for apidoc sv_vcatpvfn | |
9108 | ||
9109 | Processes its arguments like C<vsprintf> and appends the formatted output | |
9110 | to an SV. Uses an array of SVs if the C style variable argument list is | |
9111 | missing (NULL). When running with taint checks enabled, indicates via | |
9112 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
9113 | locales). | |
9114 | ||
bffc3d17 | 9115 | Usually used via one of its frontends C<sv_vcatpvf> and C<sv_vcatpvf_mg>. |
645c22ef | 9116 | |
954c1994 GS |
9117 | =cut |
9118 | */ | |
9119 | ||
1ef29b0e RGS |
9120 | /* XXX maybe_tainted is never assigned to, so the doc above is lying. */ |
9121 | ||
46fc3d4c | 9122 | void |
7d5ea4e7 | 9123 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 9124 | { |
9125 | char *p; | |
9126 | char *q; | |
9127 | char *patend; | |
fc36a67e | 9128 | STRLEN origlen; |
46fc3d4c | 9129 | I32 svix = 0; |
27da23d5 | 9130 | static const char nullstr[] = "(null)"; |
9c5ffd7c | 9131 | SV *argsv = Nullsv; |
db79b45b JH |
9132 | bool has_utf8; /* has the result utf8? */ |
9133 | bool pat_utf8; /* the pattern is in utf8? */ | |
9134 | SV *nsv = Nullsv; | |
4151a5fe IZ |
9135 | /* Times 4: a decimal digit takes more than 3 binary digits. |
9136 | * NV_DIG: mantissa takes than many decimal digits. | |
9137 | * Plus 32: Playing safe. */ | |
9138 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
9139 | /* large enough for "%#.#f" --chip */ | |
9140 | /* what about long double NVs? --jhi */ | |
db79b45b JH |
9141 | |
9142 | has_utf8 = pat_utf8 = DO_UTF8(sv); | |
46fc3d4c | 9143 | |
9144 | /* no matter what, this is a string now */ | |
fc36a67e | 9145 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 9146 | |
fc36a67e | 9147 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 9148 | if (patlen == 0) |
9149 | return; | |
fc36a67e | 9150 | if (patlen == 2 && pat[0] == '%') { |
9151 | switch (pat[1]) { | |
9152 | case 's': | |
c635e13b | 9153 | if (args) { |
73d840c0 | 9154 | const char *s = va_arg(*args, char*); |
c635e13b | 9155 | sv_catpv(sv, s ? s : nullstr); |
9156 | } | |
7e2040f0 | 9157 | else if (svix < svmax) { |
fc36a67e | 9158 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
9159 | if (DO_UTF8(*svargs)) |
9160 | SvUTF8_on(sv); | |
9161 | } | |
fc36a67e | 9162 | return; |
9163 | case '_': | |
9164 | if (args) { | |
7e2040f0 GS |
9165 | argsv = va_arg(*args, SV*); |
9166 | sv_catsv(sv, argsv); | |
9167 | if (DO_UTF8(argsv)) | |
9168 | SvUTF8_on(sv); | |
fc36a67e | 9169 | return; |
9170 | } | |
9171 | /* See comment on '_' below */ | |
9172 | break; | |
9173 | } | |
46fc3d4c | 9174 | } |
9175 | ||
1d917b39 | 9176 | #ifndef USE_LONG_DOUBLE |
4151a5fe IZ |
9177 | /* special-case "%.<number>[gf]" */ |
9178 | if ( patlen <= 5 && pat[0] == '%' && pat[1] == '.' | |
9179 | && (pat[patlen-1] == 'g' || pat[patlen-1] == 'f') ) { | |
9180 | unsigned digits = 0; | |
9181 | const char *pp; | |
9182 | ||
9183 | pp = pat + 2; | |
9184 | while (*pp >= '0' && *pp <= '9') | |
9185 | digits = 10 * digits + (*pp++ - '0'); | |
028f8eaa | 9186 | if (pp - pat == (int)patlen - 1) { |
4151a5fe IZ |
9187 | NV nv; |
9188 | ||
9189 | if (args) | |
9190 | nv = (NV)va_arg(*args, double); | |
9191 | else if (svix < svmax) | |
9192 | nv = SvNV(*svargs); | |
9193 | else | |
9194 | return; | |
9195 | if (*pp == 'g') { | |
2873255c NC |
9196 | /* Add check for digits != 0 because it seems that some |
9197 | gconverts are buggy in this case, and we don't yet have | |
9198 | a Configure test for this. */ | |
9199 | if (digits && digits < sizeof(ebuf) - NV_DIG - 10) { | |
9200 | /* 0, point, slack */ | |
2e59c212 | 9201 | Gconvert(nv, (int)digits, 0, ebuf); |
4151a5fe IZ |
9202 | sv_catpv(sv, ebuf); |
9203 | if (*ebuf) /* May return an empty string for digits==0 */ | |
9204 | return; | |
9205 | } | |
9206 | } else if (!digits) { | |
9207 | STRLEN l; | |
9208 | ||
9209 | if ((p = F0convert(nv, ebuf + sizeof ebuf, &l))) { | |
9210 | sv_catpvn(sv, p, l); | |
9211 | return; | |
9212 | } | |
9213 | } | |
9214 | } | |
9215 | } | |
1d917b39 | 9216 | #endif /* !USE_LONG_DOUBLE */ |
4151a5fe | 9217 | |
2cf2cfc6 | 9218 | if (!args && svix < svmax && DO_UTF8(*svargs)) |
205f51d8 | 9219 | has_utf8 = TRUE; |
2cf2cfc6 | 9220 | |
46fc3d4c | 9221 | patend = (char*)pat + patlen; |
9222 | for (p = (char*)pat; p < patend; p = q) { | |
9223 | bool alt = FALSE; | |
9224 | bool left = FALSE; | |
b22c7a20 | 9225 | bool vectorize = FALSE; |
211dfcf1 | 9226 | bool vectorarg = FALSE; |
2cf2cfc6 | 9227 | bool vec_utf8 = FALSE; |
46fc3d4c | 9228 | char fill = ' '; |
9229 | char plus = 0; | |
9230 | char intsize = 0; | |
9231 | STRLEN width = 0; | |
fc36a67e | 9232 | STRLEN zeros = 0; |
46fc3d4c | 9233 | bool has_precis = FALSE; |
9234 | STRLEN precis = 0; | |
58e33a90 | 9235 | I32 osvix = svix; |
2cf2cfc6 | 9236 | bool is_utf8 = FALSE; /* is this item utf8? */ |
20f6aaab AS |
9237 | #ifdef HAS_LDBL_SPRINTF_BUG |
9238 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
205f51d8 | 9239 | with sfio - Allen <allens@cpan.org> */ |
20f6aaab AS |
9240 | bool fix_ldbl_sprintf_bug = FALSE; |
9241 | #endif | |
205f51d8 | 9242 | |
46fc3d4c | 9243 | char esignbuf[4]; |
89ebb4a3 | 9244 | U8 utf8buf[UTF8_MAXBYTES+1]; |
46fc3d4c | 9245 | STRLEN esignlen = 0; |
9246 | ||
9247 | char *eptr = Nullch; | |
fc36a67e | 9248 | STRLEN elen = 0; |
81f715da | 9249 | SV *vecsv = Nullsv; |
a05b299f | 9250 | U8 *vecstr = Null(U8*); |
b22c7a20 | 9251 | STRLEN veclen = 0; |
934abaf1 | 9252 | char c = 0; |
46fc3d4c | 9253 | int i; |
9c5ffd7c | 9254 | unsigned base = 0; |
8c8eb53c RB |
9255 | IV iv = 0; |
9256 | UV uv = 0; | |
9e5b023a JH |
9257 | /* we need a long double target in case HAS_LONG_DOUBLE but |
9258 | not USE_LONG_DOUBLE | |
9259 | */ | |
35fff930 | 9260 | #if defined(HAS_LONG_DOUBLE) && LONG_DOUBLESIZE > DOUBLESIZE |
9e5b023a JH |
9261 | long double nv; |
9262 | #else | |
65202027 | 9263 | NV nv; |
9e5b023a | 9264 | #endif |
46fc3d4c | 9265 | STRLEN have; |
9266 | STRLEN need; | |
9267 | STRLEN gap; | |
e1ec3a88 | 9268 | const char *dotstr = "."; |
b22c7a20 | 9269 | STRLEN dotstrlen = 1; |
211dfcf1 | 9270 | I32 efix = 0; /* explicit format parameter index */ |
eb3fce90 | 9271 | I32 ewix = 0; /* explicit width index */ |
211dfcf1 HS |
9272 | I32 epix = 0; /* explicit precision index */ |
9273 | I32 evix = 0; /* explicit vector index */ | |
eb3fce90 | 9274 | bool asterisk = FALSE; |
46fc3d4c | 9275 | |
211dfcf1 | 9276 | /* echo everything up to the next format specification */ |
46fc3d4c | 9277 | for (q = p; q < patend && *q != '%'; ++q) ; |
9278 | if (q > p) { | |
db79b45b JH |
9279 | if (has_utf8 && !pat_utf8) |
9280 | sv_catpvn_utf8_upgrade(sv, p, q - p, nsv); | |
9281 | else | |
9282 | sv_catpvn(sv, p, q - p); | |
46fc3d4c | 9283 | p = q; |
9284 | } | |
9285 | if (q++ >= patend) | |
9286 | break; | |
9287 | ||
211dfcf1 HS |
9288 | /* |
9289 | We allow format specification elements in this order: | |
9290 | \d+\$ explicit format parameter index | |
9291 | [-+ 0#]+ flags | |
a472f209 | 9292 | v|\*(\d+\$)?v vector with optional (optionally specified) arg |
f3583277 | 9293 | 0 flag (as above): repeated to allow "v02" |
211dfcf1 HS |
9294 | \d+|\*(\d+\$)? width using optional (optionally specified) arg |
9295 | \.(\d*|\*(\d+\$)?) precision using optional (optionally specified) arg | |
9296 | [hlqLV] size | |
9297 | [%bcdefginopsux_DFOUX] format (mandatory) | |
9298 | */ | |
9299 | if (EXPECT_NUMBER(q, width)) { | |
9300 | if (*q == '$') { | |
9301 | ++q; | |
9302 | efix = width; | |
9303 | } else { | |
9304 | goto gotwidth; | |
9305 | } | |
9306 | } | |
9307 | ||
fc36a67e | 9308 | /* FLAGS */ |
9309 | ||
46fc3d4c | 9310 | while (*q) { |
9311 | switch (*q) { | |
9312 | case ' ': | |
9313 | case '+': | |
9314 | plus = *q++; | |
9315 | continue; | |
9316 | ||
9317 | case '-': | |
9318 | left = TRUE; | |
9319 | q++; | |
9320 | continue; | |
9321 | ||
9322 | case '0': | |
9323 | fill = *q++; | |
9324 | continue; | |
9325 | ||
9326 | case '#': | |
9327 | alt = TRUE; | |
9328 | q++; | |
9329 | continue; | |
9330 | ||
fc36a67e | 9331 | default: |
9332 | break; | |
9333 | } | |
9334 | break; | |
9335 | } | |
46fc3d4c | 9336 | |
211dfcf1 | 9337 | tryasterisk: |
eb3fce90 | 9338 | if (*q == '*') { |
211dfcf1 HS |
9339 | q++; |
9340 | if (EXPECT_NUMBER(q, ewix)) | |
9341 | if (*q++ != '$') | |
9342 | goto unknown; | |
eb3fce90 | 9343 | asterisk = TRUE; |
211dfcf1 HS |
9344 | } |
9345 | if (*q == 'v') { | |
eb3fce90 | 9346 | q++; |
211dfcf1 HS |
9347 | if (vectorize) |
9348 | goto unknown; | |
9cbac4c7 | 9349 | if ((vectorarg = asterisk)) { |
211dfcf1 HS |
9350 | evix = ewix; |
9351 | ewix = 0; | |
9352 | asterisk = FALSE; | |
9353 | } | |
9354 | vectorize = TRUE; | |
9355 | goto tryasterisk; | |
eb3fce90 JH |
9356 | } |
9357 | ||
211dfcf1 | 9358 | if (!asterisk) |
7a5fa8a2 | 9359 | if( *q == '0' ) |
f3583277 | 9360 | fill = *q++; |
211dfcf1 HS |
9361 | EXPECT_NUMBER(q, width); |
9362 | ||
9363 | if (vectorize) { | |
9364 | if (vectorarg) { | |
9365 | if (args) | |
9366 | vecsv = va_arg(*args, SV*); | |
9367 | else | |
9368 | vecsv = (evix ? evix <= svmax : svix < svmax) ? | |
3a7a539e | 9369 | svargs[evix ? evix-1 : svix++] : &PL_sv_undef; |
4459522c | 9370 | dotstr = SvPVx(vecsv, dotstrlen); |
211dfcf1 | 9371 | if (DO_UTF8(vecsv)) |
2cf2cfc6 | 9372 | is_utf8 = TRUE; |
211dfcf1 HS |
9373 | } |
9374 | if (args) { | |
9375 | vecsv = va_arg(*args, SV*); | |
9376 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 9377 | vec_utf8 = DO_UTF8(vecsv); |
eb3fce90 | 9378 | } |
211dfcf1 HS |
9379 | else if (efix ? efix <= svmax : svix < svmax) { |
9380 | vecsv = svargs[efix ? efix-1 : svix++]; | |
9381 | vecstr = (U8*)SvPVx(vecsv,veclen); | |
2cf2cfc6 | 9382 | vec_utf8 = DO_UTF8(vecsv); |
d7aa5382 JP |
9383 | /* if this is a version object, we need to return the |
9384 | * stringified representation (which the SvPVX has | |
9385 | * already done for us), but not vectorize the args | |
9386 | */ | |
9387 | if ( *q == 'd' && sv_derived_from(vecsv,"version") ) | |
9388 | { | |
9389 | q++; /* skip past the rest of the %vd format */ | |
da6068d9 | 9390 | eptr = (char *) vecstr; |
d7aa5382 JP |
9391 | elen = strlen(eptr); |
9392 | vectorize=FALSE; | |
9393 | goto string; | |
9394 | } | |
211dfcf1 HS |
9395 | } |
9396 | else { | |
9397 | vecstr = (U8*)""; | |
9398 | veclen = 0; | |
9399 | } | |
eb3fce90 | 9400 | } |
fc36a67e | 9401 | |
eb3fce90 | 9402 | if (asterisk) { |
fc36a67e | 9403 | if (args) |
9404 | i = va_arg(*args, int); | |
9405 | else | |
eb3fce90 JH |
9406 | i = (ewix ? ewix <= svmax : svix < svmax) ? |
9407 | SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 9408 | left |= (i < 0); |
9409 | width = (i < 0) ? -i : i; | |
fc36a67e | 9410 | } |
211dfcf1 | 9411 | gotwidth: |
fc36a67e | 9412 | |
9413 | /* PRECISION */ | |
46fc3d4c | 9414 | |
fc36a67e | 9415 | if (*q == '.') { |
9416 | q++; | |
9417 | if (*q == '*') { | |
211dfcf1 | 9418 | q++; |
7b8dd722 HS |
9419 | if (EXPECT_NUMBER(q, epix) && *q++ != '$') |
9420 | goto unknown; | |
9421 | /* XXX: todo, support specified precision parameter */ | |
9422 | if (epix) | |
211dfcf1 | 9423 | goto unknown; |
46fc3d4c | 9424 | if (args) |
9425 | i = va_arg(*args, int); | |
9426 | else | |
eb3fce90 JH |
9427 | i = (ewix ? ewix <= svmax : svix < svmax) |
9428 | ? SvIVx(svargs[ewix ? ewix-1 : svix++]) : 0; | |
fc36a67e | 9429 | precis = (i < 0) ? 0 : i; |
fc36a67e | 9430 | } |
9431 | else { | |
9432 | precis = 0; | |
9433 | while (isDIGIT(*q)) | |
9434 | precis = precis * 10 + (*q++ - '0'); | |
9435 | } | |
9436 | has_precis = TRUE; | |
9437 | } | |
46fc3d4c | 9438 | |
fc36a67e | 9439 | /* SIZE */ |
46fc3d4c | 9440 | |
fc36a67e | 9441 | switch (*q) { |
c623ac67 GS |
9442 | #ifdef WIN32 |
9443 | case 'I': /* Ix, I32x, and I64x */ | |
9444 | # ifdef WIN64 | |
9445 | if (q[1] == '6' && q[2] == '4') { | |
9446 | q += 3; | |
9447 | intsize = 'q'; | |
9448 | break; | |
9449 | } | |
9450 | # endif | |
9451 | if (q[1] == '3' && q[2] == '2') { | |
9452 | q += 3; | |
9453 | break; | |
9454 | } | |
9455 | # ifdef WIN64 | |
9456 | intsize = 'q'; | |
9457 | # endif | |
9458 | q++; | |
9459 | break; | |
9460 | #endif | |
9e5b023a | 9461 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
6f9bb7fd | 9462 | case 'L': /* Ld */ |
e5c81feb | 9463 | /* FALL THROUGH */ |
e5c81feb | 9464 | #ifdef HAS_QUAD |
6f9bb7fd | 9465 | case 'q': /* qd */ |
9e5b023a | 9466 | #endif |
6f9bb7fd GS |
9467 | intsize = 'q'; |
9468 | q++; | |
9469 | break; | |
9470 | #endif | |
fc36a67e | 9471 | case 'l': |
9e5b023a | 9472 | #if defined(HAS_QUAD) || defined(HAS_LONG_DOUBLE) |
205f51d8 | 9473 | if (*(q + 1) == 'l') { /* lld, llf */ |
fc36a67e | 9474 | intsize = 'q'; |
9475 | q += 2; | |
46fc3d4c | 9476 | break; |
cf2093f6 | 9477 | } |
fc36a67e | 9478 | #endif |
6f9bb7fd | 9479 | /* FALL THROUGH */ |
fc36a67e | 9480 | case 'h': |
cf2093f6 | 9481 | /* FALL THROUGH */ |
fc36a67e | 9482 | case 'V': |
9483 | intsize = *q++; | |
46fc3d4c | 9484 | break; |
9485 | } | |
9486 | ||
fc36a67e | 9487 | /* CONVERSION */ |
9488 | ||
211dfcf1 HS |
9489 | if (*q == '%') { |
9490 | eptr = q++; | |
9491 | elen = 1; | |
9492 | goto string; | |
9493 | } | |
9494 | ||
be75b157 HS |
9495 | if (vectorize) |
9496 | argsv = vecsv; | |
9497 | else if (!args) | |
211dfcf1 HS |
9498 | argsv = (efix ? efix <= svmax : svix < svmax) ? |
9499 | svargs[efix ? efix-1 : svix++] : &PL_sv_undef; | |
9500 | ||
46fc3d4c | 9501 | switch (c = *q++) { |
9502 | ||
9503 | /* STRINGS */ | |
9504 | ||
46fc3d4c | 9505 | case 'c': |
be75b157 | 9506 | uv = (args && !vectorize) ? va_arg(*args, int) : SvIVx(argsv); |
1bd104fb JH |
9507 | if ((uv > 255 || |
9508 | (!UNI_IS_INVARIANT(uv) && SvUTF8(sv))) | |
0064a8a9 | 9509 | && !IN_BYTES) { |
dfe13c55 | 9510 | eptr = (char*)utf8buf; |
9041c2e3 | 9511 | elen = uvchr_to_utf8((U8*)eptr, uv) - utf8buf; |
2cf2cfc6 | 9512 | is_utf8 = TRUE; |
7e2040f0 GS |
9513 | } |
9514 | else { | |
9515 | c = (char)uv; | |
9516 | eptr = &c; | |
9517 | elen = 1; | |
a0ed51b3 | 9518 | } |
46fc3d4c | 9519 | goto string; |
9520 | ||
46fc3d4c | 9521 | case 's': |
be75b157 | 9522 | if (args && !vectorize) { |
fc36a67e | 9523 | eptr = va_arg(*args, char*); |
c635e13b | 9524 | if (eptr) |
1d7c1841 GS |
9525 | #ifdef MACOS_TRADITIONAL |
9526 | /* On MacOS, %#s format is used for Pascal strings */ | |
9527 | if (alt) | |
9528 | elen = *eptr++; | |
9529 | else | |
9530 | #endif | |
c635e13b | 9531 | elen = strlen(eptr); |
9532 | else { | |
27da23d5 | 9533 | eptr = (char *)nullstr; |
c635e13b | 9534 | elen = sizeof nullstr - 1; |
9535 | } | |
46fc3d4c | 9536 | } |
211dfcf1 | 9537 | else { |
7e2040f0 GS |
9538 | eptr = SvPVx(argsv, elen); |
9539 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
9540 | if (has_precis && precis < elen) { |
9541 | I32 p = precis; | |
7e2040f0 | 9542 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
9543 | precis = p; |
9544 | } | |
9545 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 9546 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 9547 | } |
2cf2cfc6 | 9548 | is_utf8 = TRUE; |
a0ed51b3 LW |
9549 | } |
9550 | } | |
46fc3d4c | 9551 | goto string; |
9552 | ||
fc36a67e | 9553 | case '_': |
5df617be RB |
9554 | #ifdef CHECK_FORMAT |
9555 | format_sv: | |
9556 | #endif | |
fc36a67e | 9557 | /* |
9558 | * The "%_" hack might have to be changed someday, | |
9559 | * if ISO or ANSI decide to use '_' for something. | |
9560 | * So we keep it hidden from users' code. | |
9561 | */ | |
be75b157 | 9562 | if (!args || vectorize) |
fc36a67e | 9563 | goto unknown; |
211dfcf1 | 9564 | argsv = va_arg(*args, SV*); |
7e2040f0 GS |
9565 | eptr = SvPVx(argsv, elen); |
9566 | if (DO_UTF8(argsv)) | |
2cf2cfc6 | 9567 | is_utf8 = TRUE; |
fc36a67e | 9568 | |
46fc3d4c | 9569 | string: |
b22c7a20 | 9570 | vectorize = FALSE; |
46fc3d4c | 9571 | if (has_precis && elen > precis) |
9572 | elen = precis; | |
9573 | break; | |
9574 | ||
9575 | /* INTEGERS */ | |
9576 | ||
fc36a67e | 9577 | case 'p': |
5df617be RB |
9578 | #ifdef CHECK_FORMAT |
9579 | if (left) { | |
9580 | left = FALSE; | |
57f5baf2 RB |
9581 | if (!width) |
9582 | goto format_sv; /* %-p -> %_ */ | |
57f5baf2 RB |
9583 | precis = width; |
9584 | has_precis = TRUE; | |
9585 | width = 0; | |
9586 | goto format_sv; /* %-Np -> %.N_ */ | |
5df617be RB |
9587 | } |
9588 | #endif | |
be75b157 | 9589 | if (alt || vectorize) |
c2e66d9e | 9590 | goto unknown; |
211dfcf1 | 9591 | uv = PTR2UV(args ? va_arg(*args, void*) : argsv); |
fc36a67e | 9592 | base = 16; |
9593 | goto integer; | |
9594 | ||
46fc3d4c | 9595 | case 'D': |
29fe7a80 | 9596 | #ifdef IV_IS_QUAD |
22f3ae8c | 9597 | intsize = 'q'; |
29fe7a80 | 9598 | #else |
46fc3d4c | 9599 | intsize = 'l'; |
29fe7a80 | 9600 | #endif |
46fc3d4c | 9601 | /* FALL THROUGH */ |
9602 | case 'd': | |
9603 | case 'i': | |
b22c7a20 | 9604 | if (vectorize) { |
ba210ebe | 9605 | STRLEN ulen; |
211dfcf1 HS |
9606 | if (!veclen) |
9607 | continue; | |
2cf2cfc6 A |
9608 | if (vec_utf8) |
9609 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
9610 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 9611 | else { |
e83d50c9 | 9612 | uv = *vecstr; |
b22c7a20 GS |
9613 | ulen = 1; |
9614 | } | |
9615 | vecstr += ulen; | |
9616 | veclen -= ulen; | |
e83d50c9 JP |
9617 | if (plus) |
9618 | esignbuf[esignlen++] = plus; | |
b22c7a20 GS |
9619 | } |
9620 | else if (args) { | |
46fc3d4c | 9621 | switch (intsize) { |
9622 | case 'h': iv = (short)va_arg(*args, int); break; | |
46fc3d4c | 9623 | case 'l': iv = va_arg(*args, long); break; |
fc36a67e | 9624 | case 'V': iv = va_arg(*args, IV); break; |
b10c0dba | 9625 | default: iv = va_arg(*args, int); break; |
cf2093f6 JH |
9626 | #ifdef HAS_QUAD |
9627 | case 'q': iv = va_arg(*args, Quad_t); break; | |
9628 | #endif | |
46fc3d4c | 9629 | } |
9630 | } | |
9631 | else { | |
b10c0dba | 9632 | IV tiv = SvIVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 9633 | switch (intsize) { |
b10c0dba MHM |
9634 | case 'h': iv = (short)tiv; break; |
9635 | case 'l': iv = (long)tiv; break; | |
9636 | case 'V': | |
9637 | default: iv = tiv; break; | |
cf2093f6 | 9638 | #ifdef HAS_QUAD |
b10c0dba | 9639 | case 'q': iv = (Quad_t)tiv; break; |
cf2093f6 | 9640 | #endif |
46fc3d4c | 9641 | } |
9642 | } | |
e83d50c9 JP |
9643 | if ( !vectorize ) /* we already set uv above */ |
9644 | { | |
9645 | if (iv >= 0) { | |
9646 | uv = iv; | |
9647 | if (plus) | |
9648 | esignbuf[esignlen++] = plus; | |
9649 | } | |
9650 | else { | |
9651 | uv = -iv; | |
9652 | esignbuf[esignlen++] = '-'; | |
9653 | } | |
46fc3d4c | 9654 | } |
9655 | base = 10; | |
9656 | goto integer; | |
9657 | ||
fc36a67e | 9658 | case 'U': |
29fe7a80 | 9659 | #ifdef IV_IS_QUAD |
22f3ae8c | 9660 | intsize = 'q'; |
29fe7a80 | 9661 | #else |
fc36a67e | 9662 | intsize = 'l'; |
29fe7a80 | 9663 | #endif |
fc36a67e | 9664 | /* FALL THROUGH */ |
9665 | case 'u': | |
9666 | base = 10; | |
9667 | goto uns_integer; | |
9668 | ||
4f19785b WSI |
9669 | case 'b': |
9670 | base = 2; | |
9671 | goto uns_integer; | |
9672 | ||
46fc3d4c | 9673 | case 'O': |
29fe7a80 | 9674 | #ifdef IV_IS_QUAD |
22f3ae8c | 9675 | intsize = 'q'; |
29fe7a80 | 9676 | #else |
46fc3d4c | 9677 | intsize = 'l'; |
29fe7a80 | 9678 | #endif |
46fc3d4c | 9679 | /* FALL THROUGH */ |
9680 | case 'o': | |
9681 | base = 8; | |
9682 | goto uns_integer; | |
9683 | ||
9684 | case 'X': | |
46fc3d4c | 9685 | case 'x': |
9686 | base = 16; | |
46fc3d4c | 9687 | |
9688 | uns_integer: | |
b22c7a20 | 9689 | if (vectorize) { |
ba210ebe | 9690 | STRLEN ulen; |
b22c7a20 | 9691 | vector: |
211dfcf1 HS |
9692 | if (!veclen) |
9693 | continue; | |
2cf2cfc6 A |
9694 | if (vec_utf8) |
9695 | uv = utf8n_to_uvchr(vecstr, veclen, &ulen, | |
9696 | UTF8_ALLOW_ANYUV); | |
b22c7a20 | 9697 | else { |
a05b299f | 9698 | uv = *vecstr; |
b22c7a20 GS |
9699 | ulen = 1; |
9700 | } | |
9701 | vecstr += ulen; | |
9702 | veclen -= ulen; | |
9703 | } | |
9704 | else if (args) { | |
46fc3d4c | 9705 | switch (intsize) { |
9706 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
46fc3d4c | 9707 | case 'l': uv = va_arg(*args, unsigned long); break; |
fc36a67e | 9708 | case 'V': uv = va_arg(*args, UV); break; |
b10c0dba | 9709 | default: uv = va_arg(*args, unsigned); break; |
cf2093f6 | 9710 | #ifdef HAS_QUAD |
9e3321a5 | 9711 | case 'q': uv = va_arg(*args, Uquad_t); break; |
cf2093f6 | 9712 | #endif |
46fc3d4c | 9713 | } |
9714 | } | |
9715 | else { | |
b10c0dba | 9716 | UV tuv = SvUVx(argsv); /* work around GCC bug #13488 */ |
46fc3d4c | 9717 | switch (intsize) { |
b10c0dba MHM |
9718 | case 'h': uv = (unsigned short)tuv; break; |
9719 | case 'l': uv = (unsigned long)tuv; break; | |
9720 | case 'V': | |
9721 | default: uv = tuv; break; | |
cf2093f6 | 9722 | #ifdef HAS_QUAD |
b10c0dba | 9723 | case 'q': uv = (Uquad_t)tuv; break; |
cf2093f6 | 9724 | #endif |
46fc3d4c | 9725 | } |
9726 | } | |
9727 | ||
9728 | integer: | |
46fc3d4c | 9729 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 9730 | switch (base) { |
9731 | unsigned dig; | |
9732 | case 16: | |
c10ed8b9 HS |
9733 | if (!uv) |
9734 | alt = FALSE; | |
1d7c1841 GS |
9735 | p = (char*)((c == 'X') |
9736 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 9737 | do { |
9738 | dig = uv & 15; | |
9739 | *--eptr = p[dig]; | |
9740 | } while (uv >>= 4); | |
9741 | if (alt) { | |
46fc3d4c | 9742 | esignbuf[esignlen++] = '0'; |
fc36a67e | 9743 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 9744 | } |
fc36a67e | 9745 | break; |
9746 | case 8: | |
9747 | do { | |
9748 | dig = uv & 7; | |
9749 | *--eptr = '0' + dig; | |
9750 | } while (uv >>= 3); | |
9751 | if (alt && *eptr != '0') | |
9752 | *--eptr = '0'; | |
9753 | break; | |
4f19785b WSI |
9754 | case 2: |
9755 | do { | |
9756 | dig = uv & 1; | |
9757 | *--eptr = '0' + dig; | |
9758 | } while (uv >>= 1); | |
eda88b6d JH |
9759 | if (alt) { |
9760 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 9761 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 9762 | } |
4f19785b | 9763 | break; |
fc36a67e | 9764 | default: /* it had better be ten or less */ |
9765 | do { | |
9766 | dig = uv % base; | |
9767 | *--eptr = '0' + dig; | |
9768 | } while (uv /= base); | |
9769 | break; | |
46fc3d4c | 9770 | } |
9771 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
9772 | if (has_precis) { |
9773 | if (precis > elen) | |
9774 | zeros = precis - elen; | |
9775 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
9776 | elen = 0; | |
9777 | } | |
46fc3d4c | 9778 | break; |
9779 | ||
9780 | /* FLOATING POINT */ | |
9781 | ||
fc36a67e | 9782 | case 'F': |
9783 | c = 'f'; /* maybe %F isn't supported here */ | |
9784 | /* FALL THROUGH */ | |
46fc3d4c | 9785 | case 'e': case 'E': |
fc36a67e | 9786 | case 'f': |
46fc3d4c | 9787 | case 'g': case 'G': |
9788 | ||
9789 | /* This is evil, but floating point is even more evil */ | |
9790 | ||
9e5b023a JH |
9791 | /* for SV-style calling, we can only get NV |
9792 | for C-style calling, we assume %f is double; | |
9793 | for simplicity we allow any of %Lf, %llf, %qf for long double | |
9794 | */ | |
9795 | switch (intsize) { | |
9796 | case 'V': | |
9797 | #if defined(USE_LONG_DOUBLE) | |
9798 | intsize = 'q'; | |
9799 | #endif | |
9800 | break; | |
8a2e3f14 | 9801 | /* [perl #20339] - we should accept and ignore %lf rather than die */ |
00e17364 HS |
9802 | case 'l': |
9803 | /* FALL THROUGH */ | |
9e5b023a JH |
9804 | default: |
9805 | #if defined(USE_LONG_DOUBLE) | |
9806 | intsize = args ? 0 : 'q'; | |
9807 | #endif | |
9808 | break; | |
9809 | case 'q': | |
9810 | #if defined(HAS_LONG_DOUBLE) | |
9811 | break; | |
9812 | #else | |
9813 | /* FALL THROUGH */ | |
9814 | #endif | |
9815 | case 'h': | |
9e5b023a JH |
9816 | goto unknown; |
9817 | } | |
9818 | ||
9819 | /* now we need (long double) if intsize == 'q', else (double) */ | |
be75b157 | 9820 | nv = (args && !vectorize) ? |
35fff930 JH |
9821 | #if LONG_DOUBLESIZE > DOUBLESIZE |
9822 | intsize == 'q' ? | |
205f51d8 AS |
9823 | va_arg(*args, long double) : |
9824 | va_arg(*args, double) | |
35fff930 | 9825 | #else |
205f51d8 | 9826 | va_arg(*args, double) |
35fff930 | 9827 | #endif |
9e5b023a | 9828 | : SvNVx(argsv); |
fc36a67e | 9829 | |
9830 | need = 0; | |
be75b157 | 9831 | vectorize = FALSE; |
fc36a67e | 9832 | if (c != 'e' && c != 'E') { |
9833 | i = PERL_INT_MIN; | |
9e5b023a JH |
9834 | /* FIXME: if HAS_LONG_DOUBLE but not USE_LONG_DOUBLE this |
9835 | will cast our (long double) to (double) */ | |
73b309ea | 9836 | (void)Perl_frexp(nv, &i); |
fc36a67e | 9837 | if (i == PERL_INT_MIN) |
cea2e8a9 | 9838 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 9839 | if (i > 0) |
fc36a67e | 9840 | need = BIT_DIGITS(i); |
9841 | } | |
9842 | need += has_precis ? precis : 6; /* known default */ | |
20f6aaab | 9843 | |
fc36a67e | 9844 | if (need < width) |
9845 | need = width; | |
9846 | ||
20f6aaab AS |
9847 | #ifdef HAS_LDBL_SPRINTF_BUG |
9848 | /* This is to try to fix a bug with irix/nonstop-ux/powerux and | |
205f51d8 AS |
9849 | with sfio - Allen <allens@cpan.org> */ |
9850 | ||
9851 | # ifdef DBL_MAX | |
9852 | # define MY_DBL_MAX DBL_MAX | |
9853 | # else /* XXX guessing! HUGE_VAL may be defined as infinity, so not using */ | |
9854 | # if DOUBLESIZE >= 8 | |
9855 | # define MY_DBL_MAX 1.7976931348623157E+308L | |
9856 | # else | |
9857 | # define MY_DBL_MAX 3.40282347E+38L | |
9858 | # endif | |
9859 | # endif | |
9860 | ||
9861 | # ifdef HAS_LDBL_SPRINTF_BUG_LESS1 /* only between -1L & 1L - Allen */ | |
9862 | # define MY_DBL_MAX_BUG 1L | |
20f6aaab | 9863 | # else |
205f51d8 | 9864 | # define MY_DBL_MAX_BUG MY_DBL_MAX |
20f6aaab | 9865 | # endif |
20f6aaab | 9866 | |
205f51d8 AS |
9867 | # ifdef DBL_MIN |
9868 | # define MY_DBL_MIN DBL_MIN | |
9869 | # else /* XXX guessing! -Allen */ | |
9870 | # if DOUBLESIZE >= 8 | |
9871 | # define MY_DBL_MIN 2.2250738585072014E-308L | |
9872 | # else | |
9873 | # define MY_DBL_MIN 1.17549435E-38L | |
9874 | # endif | |
9875 | # endif | |
20f6aaab | 9876 | |
205f51d8 AS |
9877 | if ((intsize == 'q') && (c == 'f') && |
9878 | ((nv < MY_DBL_MAX_BUG) && (nv > -MY_DBL_MAX_BUG)) && | |
9879 | (need < DBL_DIG)) { | |
9880 | /* it's going to be short enough that | |
9881 | * long double precision is not needed */ | |
9882 | ||
9883 | if ((nv <= 0L) && (nv >= -0L)) | |
9884 | fix_ldbl_sprintf_bug = TRUE; /* 0 is 0 - easiest */ | |
9885 | else { | |
9886 | /* would use Perl_fp_class as a double-check but not | |
9887 | * functional on IRIX - see perl.h comments */ | |
9888 | ||
9889 | if ((nv >= MY_DBL_MIN) || (nv <= -MY_DBL_MIN)) { | |
9890 | /* It's within the range that a double can represent */ | |
9891 | #if defined(DBL_MAX) && !defined(DBL_MIN) | |
9892 | if ((nv >= ((long double)1/DBL_MAX)) || | |
9893 | (nv <= (-(long double)1/DBL_MAX))) | |
20f6aaab | 9894 | #endif |
205f51d8 | 9895 | fix_ldbl_sprintf_bug = TRUE; |
20f6aaab | 9896 | } |
205f51d8 AS |
9897 | } |
9898 | if (fix_ldbl_sprintf_bug == TRUE) { | |
9899 | double temp; | |
9900 | ||
9901 | intsize = 0; | |
9902 | temp = (double)nv; | |
9903 | nv = (NV)temp; | |
9904 | } | |
20f6aaab | 9905 | } |
205f51d8 AS |
9906 | |
9907 | # undef MY_DBL_MAX | |
9908 | # undef MY_DBL_MAX_BUG | |
9909 | # undef MY_DBL_MIN | |
9910 | ||
20f6aaab AS |
9911 | #endif /* HAS_LDBL_SPRINTF_BUG */ |
9912 | ||
46fc3d4c | 9913 | need += 20; /* fudge factor */ |
80252599 GS |
9914 | if (PL_efloatsize < need) { |
9915 | Safefree(PL_efloatbuf); | |
9916 | PL_efloatsize = need + 20; /* more fudge */ | |
9917 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 9918 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 9919 | } |
9920 | ||
4151a5fe IZ |
9921 | if ( !(width || left || plus || alt) && fill != '0' |
9922 | && has_precis && intsize != 'q' ) { /* Shortcuts */ | |
2873255c NC |
9923 | /* See earlier comment about buggy Gconvert when digits, |
9924 | aka precis is 0 */ | |
9925 | if ( c == 'g' && precis) { | |
2e59c212 | 9926 | Gconvert((NV)nv, (int)precis, 0, PL_efloatbuf); |
4151a5fe IZ |
9927 | if (*PL_efloatbuf) /* May return an empty string for digits==0 */ |
9928 | goto float_converted; | |
9929 | } else if ( c == 'f' && !precis) { | |
9930 | if ((eptr = F0convert(nv, ebuf + sizeof ebuf, &elen))) | |
9931 | break; | |
9932 | } | |
9933 | } | |
46fc3d4c | 9934 | eptr = ebuf + sizeof ebuf; |
9935 | *--eptr = '\0'; | |
9936 | *--eptr = c; | |
9e5b023a JH |
9937 | /* FIXME: what to do if HAS_LONG_DOUBLE but not PERL_PRIfldbl? */ |
9938 | #if defined(HAS_LONG_DOUBLE) && defined(PERL_PRIfldbl) | |
9939 | if (intsize == 'q') { | |
e5c81feb JH |
9940 | /* Copy the one or more characters in a long double |
9941 | * format before the 'base' ([efgEFG]) character to | |
9942 | * the format string. */ | |
9943 | static char const prifldbl[] = PERL_PRIfldbl; | |
9944 | char const *p = prifldbl + sizeof(prifldbl) - 3; | |
9945 | while (p >= prifldbl) { *--eptr = *p--; } | |
cf2093f6 | 9946 | } |
65202027 | 9947 | #endif |
46fc3d4c | 9948 | if (has_precis) { |
9949 | base = precis; | |
9950 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
9951 | *--eptr = '.'; | |
9952 | } | |
9953 | if (width) { | |
9954 | base = width; | |
9955 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
9956 | } | |
9957 | if (fill == '0') | |
9958 | *--eptr = fill; | |
84902520 TB |
9959 | if (left) |
9960 | *--eptr = '-'; | |
46fc3d4c | 9961 | if (plus) |
9962 | *--eptr = plus; | |
9963 | if (alt) | |
9964 | *--eptr = '#'; | |
9965 | *--eptr = '%'; | |
9966 | ||
ff9121f8 JH |
9967 | /* No taint. Otherwise we are in the strange situation |
9968 | * where printf() taints but print($float) doesn't. | |
bda0f7a5 | 9969 | * --jhi */ |
9e5b023a JH |
9970 | #if defined(HAS_LONG_DOUBLE) |
9971 | if (intsize == 'q') | |
9972 | (void)sprintf(PL_efloatbuf, eptr, nv); | |
9973 | else | |
9974 | (void)sprintf(PL_efloatbuf, eptr, (double)nv); | |
9975 | #else | |
dd8482fc | 9976 | (void)sprintf(PL_efloatbuf, eptr, nv); |
9e5b023a | 9977 | #endif |
4151a5fe | 9978 | float_converted: |
80252599 GS |
9979 | eptr = PL_efloatbuf; |
9980 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 9981 | break; |
9982 | ||
fc36a67e | 9983 | /* SPECIAL */ |
9984 | ||
9985 | case 'n': | |
9986 | i = SvCUR(sv) - origlen; | |
be75b157 | 9987 | if (args && !vectorize) { |
c635e13b | 9988 | switch (intsize) { |
9989 | case 'h': *(va_arg(*args, short*)) = i; break; | |
9990 | default: *(va_arg(*args, int*)) = i; break; | |
9991 | case 'l': *(va_arg(*args, long*)) = i; break; | |
9992 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
9993 | #ifdef HAS_QUAD |
9994 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
9995 | #endif | |
c635e13b | 9996 | } |
fc36a67e | 9997 | } |
9dd79c3f | 9998 | else |
211dfcf1 | 9999 | sv_setuv_mg(argsv, (UV)i); |
be75b157 | 10000 | vectorize = FALSE; |
fc36a67e | 10001 | continue; /* not "break" */ |
10002 | ||
10003 | /* UNKNOWN */ | |
10004 | ||
46fc3d4c | 10005 | default: |
fc36a67e | 10006 | unknown: |
599cee73 | 10007 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 10008 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 10009 | SV *msg = sv_newmortal(); |
35c1215d NC |
10010 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %sprintf: ", |
10011 | (PL_op->op_type == OP_PRTF) ? "" : "s"); | |
0f4b6630 | 10012 | if (c) { |
0f4b6630 | 10013 | if (isPRINT(c)) |
1c846c1f | 10014 | Perl_sv_catpvf(aTHX_ msg, |
0f4b6630 JH |
10015 | "\"%%%c\"", c & 0xFF); |
10016 | else | |
10017 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 10018 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 10019 | (UV)c & 0xFF); |
0f4b6630 | 10020 | } else |
c635e13b | 10021 | sv_catpv(msg, "end of string"); |
9014280d | 10022 | Perl_warner(aTHX_ packWARN(WARN_PRINTF), "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 10023 | } |
fb73857a | 10024 | |
10025 | /* output mangled stuff ... */ | |
10026 | if (c == '\0') | |
10027 | --q; | |
46fc3d4c | 10028 | eptr = p; |
10029 | elen = q - p; | |
fb73857a | 10030 | |
10031 | /* ... right here, because formatting flags should not apply */ | |
10032 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
10033 | p = SvEND(sv); | |
4459522c | 10034 | Copy(eptr, p, elen, char); |
fb73857a | 10035 | p += elen; |
10036 | *p = '\0'; | |
b162af07 | 10037 | SvCUR_set(sv, p - SvPVX(sv)); |
58e33a90 | 10038 | svix = osvix; |
fb73857a | 10039 | continue; /* not "break" */ |
46fc3d4c | 10040 | } |
10041 | ||
6c94ec8b HS |
10042 | /* calculate width before utf8_upgrade changes it */ |
10043 | have = esignlen + zeros + elen; | |
10044 | ||
d2876be5 JH |
10045 | if (is_utf8 != has_utf8) { |
10046 | if (is_utf8) { | |
10047 | if (SvCUR(sv)) | |
10048 | sv_utf8_upgrade(sv); | |
10049 | } | |
10050 | else { | |
10051 | SV *nsv = sv_2mortal(newSVpvn(eptr, elen)); | |
10052 | sv_utf8_upgrade(nsv); | |
10053 | eptr = SvPVX(nsv); | |
10054 | elen = SvCUR(nsv); | |
10055 | } | |
10056 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
10057 | p = SvEND(sv); | |
10058 | *p = '\0'; | |
10059 | } | |
6af65485 | 10060 | |
46fc3d4c | 10061 | need = (have > width ? have : width); |
10062 | gap = need - have; | |
10063 | ||
b22c7a20 | 10064 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 10065 | p = SvEND(sv); |
10066 | if (esignlen && fill == '0') { | |
eb160463 | 10067 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 10068 | *p++ = esignbuf[i]; |
10069 | } | |
10070 | if (gap && !left) { | |
10071 | memset(p, fill, gap); | |
10072 | p += gap; | |
10073 | } | |
10074 | if (esignlen && fill != '0') { | |
eb160463 | 10075 | for (i = 0; i < (int)esignlen; i++) |
46fc3d4c | 10076 | *p++ = esignbuf[i]; |
10077 | } | |
fc36a67e | 10078 | if (zeros) { |
10079 | for (i = zeros; i; i--) | |
10080 | *p++ = '0'; | |
10081 | } | |
46fc3d4c | 10082 | if (elen) { |
4459522c | 10083 | Copy(eptr, p, elen, char); |
46fc3d4c | 10084 | p += elen; |
10085 | } | |
10086 | if (gap && left) { | |
10087 | memset(p, ' ', gap); | |
10088 | p += gap; | |
10089 | } | |
b22c7a20 GS |
10090 | if (vectorize) { |
10091 | if (veclen) { | |
4459522c | 10092 | Copy(dotstr, p, dotstrlen, char); |
b22c7a20 GS |
10093 | p += dotstrlen; |
10094 | } | |
10095 | else | |
10096 | vectorize = FALSE; /* done iterating over vecstr */ | |
10097 | } | |
2cf2cfc6 A |
10098 | if (is_utf8) |
10099 | has_utf8 = TRUE; | |
10100 | if (has_utf8) | |
7e2040f0 | 10101 | SvUTF8_on(sv); |
46fc3d4c | 10102 | *p = '\0'; |
b162af07 | 10103 | SvCUR_set(sv, p - SvPVX(sv)); |
b22c7a20 GS |
10104 | if (vectorize) { |
10105 | esignlen = 0; | |
10106 | goto vector; | |
10107 | } | |
46fc3d4c | 10108 | } |
10109 | } | |
51371543 | 10110 | |
645c22ef DM |
10111 | /* ========================================================================= |
10112 | ||
10113 | =head1 Cloning an interpreter | |
10114 | ||
10115 | All the macros and functions in this section are for the private use of | |
10116 | the main function, perl_clone(). | |
10117 | ||
10118 | The foo_dup() functions make an exact copy of an existing foo thinngy. | |
10119 | During the course of a cloning, a hash table is used to map old addresses | |
10120 | to new addresses. The table is created and manipulated with the | |
10121 | ptr_table_* functions. | |
10122 | ||
10123 | =cut | |
10124 | ||
10125 | ============================================================================*/ | |
10126 | ||
10127 | ||
1d7c1841 GS |
10128 | #if defined(USE_ITHREADS) |
10129 | ||
1d7c1841 GS |
10130 | #ifndef GpREFCNT_inc |
10131 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
10132 | #endif | |
10133 | ||
10134 | ||
d2d73c3e AB |
10135 | #define sv_dup_inc(s,t) SvREFCNT_inc(sv_dup(s,t)) |
10136 | #define av_dup(s,t) (AV*)sv_dup((SV*)s,t) | |
10137 | #define av_dup_inc(s,t) (AV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
10138 | #define hv_dup(s,t) (HV*)sv_dup((SV*)s,t) | |
10139 | #define hv_dup_inc(s,t) (HV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
10140 | #define cv_dup(s,t) (CV*)sv_dup((SV*)s,t) | |
10141 | #define cv_dup_inc(s,t) (CV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
10142 | #define io_dup(s,t) (IO*)sv_dup((SV*)s,t) | |
10143 | #define io_dup_inc(s,t) (IO*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
10144 | #define gv_dup(s,t) (GV*)sv_dup((SV*)s,t) | |
10145 | #define gv_dup_inc(s,t) (GV*)SvREFCNT_inc(sv_dup((SV*)s,t)) | |
1d7c1841 GS |
10146 | #define SAVEPV(p) (p ? savepv(p) : Nullch) |
10147 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
8cf8f3d1 | 10148 | |
d2d73c3e | 10149 | |
d2f185dc AMS |
10150 | /* Duplicate a regexp. Required reading: pregcomp() and pregfree() in |
10151 | regcomp.c. AMS 20010712 */ | |
645c22ef | 10152 | |
1d7c1841 | 10153 | REGEXP * |
a8fc9800 | 10154 | Perl_re_dup(pTHX_ REGEXP *r, CLONE_PARAMS *param) |
1d7c1841 | 10155 | { |
27da23d5 | 10156 | dVAR; |
d2f185dc AMS |
10157 | REGEXP *ret; |
10158 | int i, len, npar; | |
10159 | struct reg_substr_datum *s; | |
10160 | ||
10161 | if (!r) | |
10162 | return (REGEXP *)NULL; | |
10163 | ||
10164 | if ((ret = (REGEXP *)ptr_table_fetch(PL_ptr_table, r))) | |
10165 | return ret; | |
10166 | ||
10167 | len = r->offsets[0]; | |
10168 | npar = r->nparens+1; | |
10169 | ||
10170 | Newc(0, ret, sizeof(regexp) + (len+1)*sizeof(regnode), char, regexp); | |
10171 | Copy(r->program, ret->program, len+1, regnode); | |
10172 | ||
10173 | New(0, ret->startp, npar, I32); | |
10174 | Copy(r->startp, ret->startp, npar, I32); | |
10175 | New(0, ret->endp, npar, I32); | |
10176 | Copy(r->startp, ret->startp, npar, I32); | |
10177 | ||
d2f185dc AMS |
10178 | New(0, ret->substrs, 1, struct reg_substr_data); |
10179 | for (s = ret->substrs->data, i = 0; i < 3; i++, s++) { | |
10180 | s->min_offset = r->substrs->data[i].min_offset; | |
10181 | s->max_offset = r->substrs->data[i].max_offset; | |
10182 | s->substr = sv_dup_inc(r->substrs->data[i].substr, param); | |
33b8afdf | 10183 | s->utf8_substr = sv_dup_inc(r->substrs->data[i].utf8_substr, param); |
d2f185dc AMS |
10184 | } |
10185 | ||
70612e96 | 10186 | ret->regstclass = NULL; |
d2f185dc AMS |
10187 | if (r->data) { |
10188 | struct reg_data *d; | |
e1ec3a88 | 10189 | const int count = r->data->count; |
d2f185dc AMS |
10190 | |
10191 | Newc(0, d, sizeof(struct reg_data) + count*sizeof(void *), | |
10192 | char, struct reg_data); | |
10193 | New(0, d->what, count, U8); | |
10194 | ||
10195 | d->count = count; | |
10196 | for (i = 0; i < count; i++) { | |
10197 | d->what[i] = r->data->what[i]; | |
10198 | switch (d->what[i]) { | |
a3621e74 YO |
10199 | /* legal options are one of: sfpont |
10200 | see also regcomp.h and pregfree() */ | |
d2f185dc AMS |
10201 | case 's': |
10202 | d->data[i] = sv_dup_inc((SV *)r->data->data[i], param); | |
10203 | break; | |
10204 | case 'p': | |
10205 | d->data[i] = av_dup_inc((AV *)r->data->data[i], param); | |
10206 | break; | |
10207 | case 'f': | |
10208 | /* This is cheating. */ | |
10209 | New(0, d->data[i], 1, struct regnode_charclass_class); | |
10210 | StructCopy(r->data->data[i], d->data[i], | |
10211 | struct regnode_charclass_class); | |
70612e96 | 10212 | ret->regstclass = (regnode*)d->data[i]; |
d2f185dc AMS |
10213 | break; |
10214 | case 'o': | |
33773810 AMS |
10215 | /* Compiled op trees are readonly, and can thus be |
10216 | shared without duplication. */ | |
b34c0dd4 | 10217 | OP_REFCNT_LOCK; |
9b978d73 | 10218 | d->data[i] = (void*)OpREFCNT_inc((OP*)r->data->data[i]); |
b34c0dd4 | 10219 | OP_REFCNT_UNLOCK; |
9b978d73 | 10220 | break; |
d2f185dc AMS |
10221 | case 'n': |
10222 | d->data[i] = r->data->data[i]; | |
10223 | break; | |
a3621e74 YO |
10224 | case 't': |
10225 | d->data[i] = r->data->data[i]; | |
10226 | OP_REFCNT_LOCK; | |
10227 | ((reg_trie_data*)d->data[i])->refcount++; | |
10228 | OP_REFCNT_UNLOCK; | |
10229 | break; | |
10230 | default: | |
10231 | Perl_croak(aTHX_ "panic: re_dup unknown data code '%c'", r->data->what[i]); | |
d2f185dc AMS |
10232 | } |
10233 | } | |
10234 | ||
10235 | ret->data = d; | |
10236 | } | |
10237 | else | |
10238 | ret->data = NULL; | |
10239 | ||
10240 | New(0, ret->offsets, 2*len+1, U32); | |
10241 | Copy(r->offsets, ret->offsets, 2*len+1, U32); | |
10242 | ||
e01c5899 | 10243 | ret->precomp = SAVEPVN(r->precomp, r->prelen); |
d2f185dc AMS |
10244 | ret->refcnt = r->refcnt; |
10245 | ret->minlen = r->minlen; | |
10246 | ret->prelen = r->prelen; | |
10247 | ret->nparens = r->nparens; | |
10248 | ret->lastparen = r->lastparen; | |
10249 | ret->lastcloseparen = r->lastcloseparen; | |
10250 | ret->reganch = r->reganch; | |
10251 | ||
70612e96 RG |
10252 | ret->sublen = r->sublen; |
10253 | ||
10254 | if (RX_MATCH_COPIED(ret)) | |
e01c5899 | 10255 | ret->subbeg = SAVEPVN(r->subbeg, r->sublen); |
70612e96 RG |
10256 | else |
10257 | ret->subbeg = Nullch; | |
9a26048b NC |
10258 | #ifdef PERL_COPY_ON_WRITE |
10259 | ret->saved_copy = Nullsv; | |
10260 | #endif | |
70612e96 | 10261 | |
d2f185dc AMS |
10262 | ptr_table_store(PL_ptr_table, r, ret); |
10263 | return ret; | |
1d7c1841 GS |
10264 | } |
10265 | ||
d2d73c3e | 10266 | /* duplicate a file handle */ |
645c22ef | 10267 | |
1d7c1841 | 10268 | PerlIO * |
a8fc9800 | 10269 | Perl_fp_dup(pTHX_ PerlIO *fp, char type, CLONE_PARAMS *param) |
1d7c1841 GS |
10270 | { |
10271 | PerlIO *ret; | |
73d840c0 AL |
10272 | (void)type; |
10273 | ||
1d7c1841 GS |
10274 | if (!fp) |
10275 | return (PerlIO*)NULL; | |
10276 | ||
10277 | /* look for it in the table first */ | |
10278 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
10279 | if (ret) | |
10280 | return ret; | |
10281 | ||
10282 | /* create anew and remember what it is */ | |
ecdeb87c | 10283 | ret = PerlIO_fdupopen(aTHX_ fp, param, PERLIO_DUP_CLONE); |
1d7c1841 GS |
10284 | ptr_table_store(PL_ptr_table, fp, ret); |
10285 | return ret; | |
10286 | } | |
10287 | ||
645c22ef DM |
10288 | /* duplicate a directory handle */ |
10289 | ||
1d7c1841 GS |
10290 | DIR * |
10291 | Perl_dirp_dup(pTHX_ DIR *dp) | |
10292 | { | |
10293 | if (!dp) | |
10294 | return (DIR*)NULL; | |
10295 | /* XXX TODO */ | |
10296 | return dp; | |
10297 | } | |
10298 | ||
ff276b08 | 10299 | /* duplicate a typeglob */ |
645c22ef | 10300 | |
1d7c1841 | 10301 | GP * |
a8fc9800 | 10302 | Perl_gp_dup(pTHX_ GP *gp, CLONE_PARAMS* param) |
1d7c1841 GS |
10303 | { |
10304 | GP *ret; | |
10305 | if (!gp) | |
10306 | return (GP*)NULL; | |
10307 | /* look for it in the table first */ | |
10308 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
10309 | if (ret) | |
10310 | return ret; | |
10311 | ||
10312 | /* create anew and remember what it is */ | |
10313 | Newz(0, ret, 1, GP); | |
10314 | ptr_table_store(PL_ptr_table, gp, ret); | |
10315 | ||
10316 | /* clone */ | |
10317 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
d2d73c3e AB |
10318 | ret->gp_sv = sv_dup_inc(gp->gp_sv, param); |
10319 | ret->gp_io = io_dup_inc(gp->gp_io, param); | |
10320 | ret->gp_form = cv_dup_inc(gp->gp_form, param); | |
10321 | ret->gp_av = av_dup_inc(gp->gp_av, param); | |
10322 | ret->gp_hv = hv_dup_inc(gp->gp_hv, param); | |
10323 | ret->gp_egv = gv_dup(gp->gp_egv, param);/* GvEGV is not refcounted */ | |
10324 | ret->gp_cv = cv_dup_inc(gp->gp_cv, param); | |
1d7c1841 GS |
10325 | ret->gp_cvgen = gp->gp_cvgen; |
10326 | ret->gp_flags = gp->gp_flags; | |
10327 | ret->gp_line = gp->gp_line; | |
10328 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
10329 | return ret; | |
10330 | } | |
10331 | ||
645c22ef DM |
10332 | /* duplicate a chain of magic */ |
10333 | ||
1d7c1841 | 10334 | MAGIC * |
a8fc9800 | 10335 | Perl_mg_dup(pTHX_ MAGIC *mg, CLONE_PARAMS* param) |
1d7c1841 | 10336 | { |
cb359b41 JH |
10337 | MAGIC *mgprev = (MAGIC*)NULL; |
10338 | MAGIC *mgret; | |
1d7c1841 GS |
10339 | if (!mg) |
10340 | return (MAGIC*)NULL; | |
10341 | /* look for it in the table first */ | |
10342 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
10343 | if (mgret) | |
10344 | return mgret; | |
10345 | ||
10346 | for (; mg; mg = mg->mg_moremagic) { | |
10347 | MAGIC *nmg; | |
10348 | Newz(0, nmg, 1, MAGIC); | |
cb359b41 | 10349 | if (mgprev) |
1d7c1841 | 10350 | mgprev->mg_moremagic = nmg; |
cb359b41 JH |
10351 | else |
10352 | mgret = nmg; | |
1d7c1841 GS |
10353 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ |
10354 | nmg->mg_private = mg->mg_private; | |
10355 | nmg->mg_type = mg->mg_type; | |
10356 | nmg->mg_flags = mg->mg_flags; | |
14befaf4 | 10357 | if (mg->mg_type == PERL_MAGIC_qr) { |
d2f185dc | 10358 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj, param); |
1d7c1841 | 10359 | } |
05bd4103 | 10360 | else if(mg->mg_type == PERL_MAGIC_backref) { |
7fc63493 | 10361 | const AV * const av = (AV*) mg->mg_obj; |
fdc9a813 AE |
10362 | SV **svp; |
10363 | I32 i; | |
7fc63493 | 10364 | (void)SvREFCNT_inc(nmg->mg_obj = (SV*)newAV()); |
fdc9a813 AE |
10365 | svp = AvARRAY(av); |
10366 | for (i = AvFILLp(av); i >= 0; i--) { | |
3a81978b | 10367 | if (!svp[i]) continue; |
fdc9a813 AE |
10368 | av_push((AV*)nmg->mg_obj,sv_dup(svp[i],param)); |
10369 | } | |
05bd4103 | 10370 | } |
1d7c1841 GS |
10371 | else { |
10372 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
d2d73c3e AB |
10373 | ? sv_dup_inc(mg->mg_obj, param) |
10374 | : sv_dup(mg->mg_obj, param); | |
1d7c1841 GS |
10375 | } |
10376 | nmg->mg_len = mg->mg_len; | |
10377 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
14befaf4 | 10378 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global) { |
68795e93 | 10379 | if (mg->mg_len > 0) { |
1d7c1841 | 10380 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); |
14befaf4 DM |
10381 | if (mg->mg_type == PERL_MAGIC_overload_table && |
10382 | AMT_AMAGIC((AMT*)mg->mg_ptr)) | |
10383 | { | |
1d7c1841 GS |
10384 | AMT *amtp = (AMT*)mg->mg_ptr; |
10385 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
10386 | I32 i; | |
10387 | for (i = 1; i < NofAMmeth; i++) { | |
d2d73c3e | 10388 | namtp->table[i] = cv_dup_inc(amtp->table[i], param); |
1d7c1841 GS |
10389 | } |
10390 | } | |
10391 | } | |
10392 | else if (mg->mg_len == HEf_SVKEY) | |
d2d73c3e | 10393 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr, param); |
1d7c1841 | 10394 | } |
68795e93 NIS |
10395 | if ((mg->mg_flags & MGf_DUP) && mg->mg_virtual && mg->mg_virtual->svt_dup) { |
10396 | CALL_FPTR(nmg->mg_virtual->svt_dup)(aTHX_ nmg, param); | |
10397 | } | |
1d7c1841 GS |
10398 | mgprev = nmg; |
10399 | } | |
10400 | return mgret; | |
10401 | } | |
10402 | ||
645c22ef DM |
10403 | /* create a new pointer-mapping table */ |
10404 | ||
1d7c1841 GS |
10405 | PTR_TBL_t * |
10406 | Perl_ptr_table_new(pTHX) | |
10407 | { | |
10408 | PTR_TBL_t *tbl; | |
10409 | Newz(0, tbl, 1, PTR_TBL_t); | |
10410 | tbl->tbl_max = 511; | |
10411 | tbl->tbl_items = 0; | |
10412 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
10413 | return tbl; | |
10414 | } | |
10415 | ||
134ca3d6 DM |
10416 | #if (PTRSIZE == 8) |
10417 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 3) | |
10418 | #else | |
10419 | # define PTR_TABLE_HASH(ptr) (PTR2UV(ptr) >> 2) | |
10420 | #endif | |
10421 | ||
32e691d0 NC |
10422 | |
10423 | ||
10424 | STATIC void | |
10425 | S_more_pte(pTHX) | |
10426 | { | |
10427 | register struct ptr_tbl_ent* pte; | |
10428 | register struct ptr_tbl_ent* pteend; | |
10429 | XPV *ptr; | |
9c17f24a | 10430 | New(54, ptr, PERL_ARENA_SIZE/sizeof(XPV), XPV); |
32e691d0 NC |
10431 | ptr->xpv_pv = (char*)PL_pte_arenaroot; |
10432 | PL_pte_arenaroot = ptr; | |
10433 | ||
10434 | pte = (struct ptr_tbl_ent*)ptr; | |
9c17f24a | 10435 | pteend = &pte[PERL_ARENA_SIZE / sizeof(struct ptr_tbl_ent) - 1]; |
32e691d0 NC |
10436 | PL_pte_root = ++pte; |
10437 | while (pte < pteend) { | |
10438 | pte->next = pte + 1; | |
10439 | pte++; | |
10440 | } | |
10441 | pte->next = 0; | |
10442 | } | |
10443 | ||
10444 | STATIC struct ptr_tbl_ent* | |
10445 | S_new_pte(pTHX) | |
10446 | { | |
10447 | struct ptr_tbl_ent* pte; | |
10448 | if (!PL_pte_root) | |
10449 | S_more_pte(aTHX); | |
10450 | pte = PL_pte_root; | |
10451 | PL_pte_root = pte->next; | |
10452 | return pte; | |
10453 | } | |
10454 | ||
10455 | STATIC void | |
10456 | S_del_pte(pTHX_ struct ptr_tbl_ent*p) | |
10457 | { | |
10458 | p->next = PL_pte_root; | |
10459 | PL_pte_root = p; | |
10460 | } | |
10461 | ||
645c22ef DM |
10462 | /* map an existing pointer using a table */ |
10463 | ||
1d7c1841 GS |
10464 | void * |
10465 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
10466 | { | |
10467 | PTR_TBL_ENT_t *tblent; | |
134ca3d6 | 10468 | UV hash = PTR_TABLE_HASH(sv); |
1d7c1841 GS |
10469 | assert(tbl); |
10470 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
10471 | for (; tblent; tblent = tblent->next) { | |
10472 | if (tblent->oldval == sv) | |
10473 | return tblent->newval; | |
10474 | } | |
10475 | return (void*)NULL; | |
10476 | } | |
10477 | ||
645c22ef DM |
10478 | /* add a new entry to a pointer-mapping table */ |
10479 | ||
1d7c1841 GS |
10480 | void |
10481 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
10482 | { | |
10483 | PTR_TBL_ENT_t *tblent, **otblent; | |
10484 | /* XXX this may be pessimal on platforms where pointers aren't good | |
10485 | * hash values e.g. if they grow faster in the most significant | |
10486 | * bits */ | |
134ca3d6 | 10487 | UV hash = PTR_TABLE_HASH(oldv); |
14cade97 | 10488 | bool empty = 1; |
1d7c1841 GS |
10489 | |
10490 | assert(tbl); | |
10491 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
14cade97 | 10492 | for (tblent = *otblent; tblent; empty=0, tblent = tblent->next) { |
1d7c1841 GS |
10493 | if (tblent->oldval == oldv) { |
10494 | tblent->newval = newv; | |
1d7c1841 GS |
10495 | return; |
10496 | } | |
10497 | } | |
32e691d0 | 10498 | tblent = S_new_pte(aTHX); |
1d7c1841 GS |
10499 | tblent->oldval = oldv; |
10500 | tblent->newval = newv; | |
10501 | tblent->next = *otblent; | |
10502 | *otblent = tblent; | |
10503 | tbl->tbl_items++; | |
14cade97 | 10504 | if (!empty && tbl->tbl_items > tbl->tbl_max) |
1d7c1841 GS |
10505 | ptr_table_split(tbl); |
10506 | } | |
10507 | ||
645c22ef DM |
10508 | /* double the hash bucket size of an existing ptr table */ |
10509 | ||
1d7c1841 GS |
10510 | void |
10511 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
10512 | { | |
10513 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
10514 | UV oldsize = tbl->tbl_max + 1; | |
10515 | UV newsize = oldsize * 2; | |
10516 | UV i; | |
10517 | ||
10518 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
10519 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
10520 | tbl->tbl_max = --newsize; | |
10521 | tbl->tbl_ary = ary; | |
10522 | for (i=0; i < oldsize; i++, ary++) { | |
10523 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
10524 | if (!*ary) | |
10525 | continue; | |
10526 | curentp = ary + oldsize; | |
10527 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
134ca3d6 | 10528 | if ((newsize & PTR_TABLE_HASH(ent->oldval)) != i) { |
1d7c1841 GS |
10529 | *entp = ent->next; |
10530 | ent->next = *curentp; | |
10531 | *curentp = ent; | |
10532 | continue; | |
10533 | } | |
10534 | else | |
10535 | entp = &ent->next; | |
10536 | } | |
10537 | } | |
10538 | } | |
10539 | ||
645c22ef DM |
10540 | /* remove all the entries from a ptr table */ |
10541 | ||
a0739874 DM |
10542 | void |
10543 | Perl_ptr_table_clear(pTHX_ PTR_TBL_t *tbl) | |
10544 | { | |
10545 | register PTR_TBL_ENT_t **array; | |
10546 | register PTR_TBL_ENT_t *entry; | |
10547 | register PTR_TBL_ENT_t *oentry = Null(PTR_TBL_ENT_t*); | |
10548 | UV riter = 0; | |
10549 | UV max; | |
10550 | ||
10551 | if (!tbl || !tbl->tbl_items) { | |
10552 | return; | |
10553 | } | |
10554 | ||
10555 | array = tbl->tbl_ary; | |
10556 | entry = array[0]; | |
10557 | max = tbl->tbl_max; | |
10558 | ||
10559 | for (;;) { | |
10560 | if (entry) { | |
10561 | oentry = entry; | |
10562 | entry = entry->next; | |
32e691d0 | 10563 | S_del_pte(aTHX_ oentry); |
a0739874 DM |
10564 | } |
10565 | if (!entry) { | |
10566 | if (++riter > max) { | |
10567 | break; | |
10568 | } | |
10569 | entry = array[riter]; | |
10570 | } | |
10571 | } | |
10572 | ||
10573 | tbl->tbl_items = 0; | |
10574 | } | |
10575 | ||
645c22ef DM |
10576 | /* clear and free a ptr table */ |
10577 | ||
a0739874 DM |
10578 | void |
10579 | Perl_ptr_table_free(pTHX_ PTR_TBL_t *tbl) | |
10580 | { | |
10581 | if (!tbl) { | |
10582 | return; | |
10583 | } | |
10584 | ptr_table_clear(tbl); | |
10585 | Safefree(tbl->tbl_ary); | |
10586 | Safefree(tbl); | |
10587 | } | |
10588 | ||
645c22ef DM |
10589 | /* attempt to make everything in the typeglob readonly */ |
10590 | ||
5bd07a3d | 10591 | STATIC SV * |
59b40662 | 10592 | S_gv_share(pTHX_ SV *sstr, CLONE_PARAMS *param) |
5bd07a3d DM |
10593 | { |
10594 | GV *gv = (GV*)sstr; | |
59b40662 | 10595 | SV *sv = ¶m->proto_perl->Isv_no; /* just need SvREADONLY-ness */ |
5bd07a3d DM |
10596 | |
10597 | if (GvIO(gv) || GvFORM(gv)) { | |
7fb37951 | 10598 | GvUNIQUE_off(gv); /* GvIOs cannot be shared. nor can GvFORMs */ |
5bd07a3d DM |
10599 | } |
10600 | else if (!GvCV(gv)) { | |
10601 | GvCV(gv) = (CV*)sv; | |
10602 | } | |
10603 | else { | |
10604 | /* CvPADLISTs cannot be shared */ | |
37e20706 | 10605 | if (!SvREADONLY(GvCV(gv)) && !CvXSUB(GvCV(gv))) { |
7fb37951 | 10606 | GvUNIQUE_off(gv); |
5bd07a3d DM |
10607 | } |
10608 | } | |
10609 | ||
7fb37951 | 10610 | if (!GvUNIQUE(gv)) { |
5bd07a3d DM |
10611 | #if 0 |
10612 | PerlIO_printf(Perl_debug_log, "gv_share: unable to share %s::%s\n", | |
10613 | HvNAME(GvSTASH(gv)), GvNAME(gv)); | |
10614 | #endif | |
10615 | return Nullsv; | |
10616 | } | |
10617 | ||
4411f3b6 | 10618 | /* |
5bd07a3d DM |
10619 | * write attempts will die with |
10620 | * "Modification of a read-only value attempted" | |
10621 | */ | |
10622 | if (!GvSV(gv)) { | |
10623 | GvSV(gv) = sv; | |
10624 | } | |
10625 | else { | |
10626 | SvREADONLY_on(GvSV(gv)); | |
10627 | } | |
10628 | ||
10629 | if (!GvAV(gv)) { | |
10630 | GvAV(gv) = (AV*)sv; | |
10631 | } | |
10632 | else { | |
10633 | SvREADONLY_on(GvAV(gv)); | |
10634 | } | |
10635 | ||
10636 | if (!GvHV(gv)) { | |
10637 | GvHV(gv) = (HV*)sv; | |
10638 | } | |
10639 | else { | |
53c33732 | 10640 | SvREADONLY_on(GvHV(gv)); |
5bd07a3d DM |
10641 | } |
10642 | ||
10643 | return sstr; /* he_dup() will SvREFCNT_inc() */ | |
10644 | } | |
10645 | ||
645c22ef DM |
10646 | /* duplicate an SV of any type (including AV, HV etc) */ |
10647 | ||
83841fad NIS |
10648 | void |
10649 | Perl_rvpv_dup(pTHX_ SV *dstr, SV *sstr, CLONE_PARAMS* param) | |
10650 | { | |
10651 | if (SvROK(sstr)) { | |
b162af07 SP |
10652 | SvRV_set(dstr, SvWEAKREF(sstr) |
10653 | ? sv_dup(SvRV(sstr), param) | |
10654 | : sv_dup_inc(SvRV(sstr), param)); | |
f880fe2f | 10655 | |
83841fad NIS |
10656 | } |
10657 | else if (SvPVX(sstr)) { | |
10658 | /* Has something there */ | |
10659 | if (SvLEN(sstr)) { | |
68795e93 | 10660 | /* Normal PV - clone whole allocated space */ |
f880fe2f | 10661 | SvPV_set(dstr, SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1)); |
d3d0e6f1 NC |
10662 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { |
10663 | /* Not that normal - actually sstr is copy on write. | |
10664 | But we are a true, independant SV, so: */ | |
10665 | SvREADONLY_off(dstr); | |
10666 | SvFAKE_off(dstr); | |
10667 | } | |
68795e93 | 10668 | } |
83841fad NIS |
10669 | else { |
10670 | /* Special case - not normally malloced for some reason */ | |
10671 | if (SvREADONLY(sstr) && SvFAKE(sstr)) { | |
10672 | /* A "shared" PV - clone it as unshared string */ | |
281b2760 | 10673 | if(SvPADTMP(sstr)) { |
5e6160dc AB |
10674 | /* However, some of them live in the pad |
10675 | and they should not have these flags | |
10676 | turned off */ | |
281b2760 | 10677 | |
f880fe2f SP |
10678 | SvPV_set(dstr, sharepvn(SvPVX(sstr), SvCUR(sstr), |
10679 | SvUVX(sstr))); | |
607fa7f2 | 10680 | SvUV_set(dstr, SvUVX(sstr)); |
281b2760 AB |
10681 | } else { |
10682 | ||
f880fe2f | 10683 | SvPV_set(dstr, SAVEPVN(SvPVX(sstr), SvCUR(sstr))); |
281b2760 AB |
10684 | SvFAKE_off(dstr); |
10685 | SvREADONLY_off(dstr); | |
5e6160dc | 10686 | } |
83841fad NIS |
10687 | } |
10688 | else { | |
10689 | /* Some other special case - random pointer */ | |
f880fe2f | 10690 | SvPV_set(dstr, SvPVX(sstr)); |
d3d0e6f1 | 10691 | } |
83841fad NIS |
10692 | } |
10693 | } | |
10694 | else { | |
10695 | /* Copy the Null */ | |
f880fe2f | 10696 | if (SvTYPE(dstr) == SVt_RV) |
b162af07 | 10697 | SvRV_set(dstr, NULL); |
f880fe2f SP |
10698 | else |
10699 | SvPV_set(dstr, 0); | |
83841fad NIS |
10700 | } |
10701 | } | |
10702 | ||
1d7c1841 | 10703 | SV * |
a8fc9800 | 10704 | Perl_sv_dup(pTHX_ SV *sstr, CLONE_PARAMS* param) |
1d7c1841 | 10705 | { |
27da23d5 | 10706 | dVAR; |
1d7c1841 GS |
10707 | SV *dstr; |
10708 | ||
10709 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
10710 | return Nullsv; | |
10711 | /* look for it in the table first */ | |
10712 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
10713 | if (dstr) | |
10714 | return dstr; | |
10715 | ||
0405e91e AB |
10716 | if(param->flags & CLONEf_JOIN_IN) { |
10717 | /** We are joining here so we don't want do clone | |
10718 | something that is bad **/ | |
10719 | ||
10720 | if(SvTYPE(sstr) == SVt_PVHV && | |
10721 | HvNAME(sstr)) { | |
10722 | /** don't clone stashes if they already exist **/ | |
10723 | HV* old_stash = gv_stashpv(HvNAME(sstr),0); | |
10724 | return (SV*) old_stash; | |
10725 | } | |
10726 | } | |
10727 | ||
1d7c1841 GS |
10728 | /* create anew and remember what it is */ |
10729 | new_SV(dstr); | |
fd0854ff DM |
10730 | |
10731 | #ifdef DEBUG_LEAKING_SCALARS | |
10732 | dstr->sv_debug_optype = sstr->sv_debug_optype; | |
10733 | dstr->sv_debug_line = sstr->sv_debug_line; | |
10734 | dstr->sv_debug_inpad = sstr->sv_debug_inpad; | |
10735 | dstr->sv_debug_cloned = 1; | |
10736 | # ifdef NETWARE | |
10737 | dstr->sv_debug_file = savepv(sstr->sv_debug_file); | |
10738 | # else | |
10739 | dstr->sv_debug_file = savesharedpv(sstr->sv_debug_file); | |
10740 | # endif | |
10741 | #endif | |
10742 | ||
1d7c1841 GS |
10743 | ptr_table_store(PL_ptr_table, sstr, dstr); |
10744 | ||
10745 | /* clone */ | |
10746 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
10747 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
10748 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
10749 | ||
10750 | #ifdef DEBUGGING | |
10751 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
10752 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
10753 | PL_watch_pvx, SvPVX(sstr)); | |
10754 | #endif | |
10755 | ||
9660f481 DM |
10756 | /* don't clone objects whose class has asked us not to */ |
10757 | if (SvOBJECT(sstr) && ! (SvFLAGS(SvSTASH(sstr)) & SVphv_CLONEABLE)) { | |
10758 | SvFLAGS(dstr) &= ~SVTYPEMASK; | |
10759 | SvOBJECT_off(dstr); | |
10760 | return dstr; | |
10761 | } | |
10762 | ||
1d7c1841 GS |
10763 | switch (SvTYPE(sstr)) { |
10764 | case SVt_NULL: | |
10765 | SvANY(dstr) = NULL; | |
10766 | break; | |
10767 | case SVt_IV: | |
10768 | SvANY(dstr) = new_XIV(); | |
45977657 | 10769 | SvIV_set(dstr, SvIVX(sstr)); |
1d7c1841 GS |
10770 | break; |
10771 | case SVt_NV: | |
10772 | SvANY(dstr) = new_XNV(); | |
9d6ce603 | 10773 | SvNV_set(dstr, SvNVX(sstr)); |
1d7c1841 GS |
10774 | break; |
10775 | case SVt_RV: | |
10776 | SvANY(dstr) = new_XRV(); | |
83841fad | 10777 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10778 | break; |
10779 | case SVt_PV: | |
10780 | SvANY(dstr) = new_XPV(); | |
b162af07 SP |
10781 | SvCUR_set(dstr, SvCUR(sstr)); |
10782 | SvLEN_set(dstr, SvLEN(sstr)); | |
83841fad | 10783 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10784 | break; |
10785 | case SVt_PVIV: | |
10786 | SvANY(dstr) = new_XPVIV(); | |
b162af07 SP |
10787 | SvCUR_set(dstr, SvCUR(sstr)); |
10788 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10789 | SvIV_set(dstr, SvIVX(sstr)); |
83841fad | 10790 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10791 | break; |
10792 | case SVt_PVNV: | |
10793 | SvANY(dstr) = new_XPVNV(); | |
b162af07 SP |
10794 | SvCUR_set(dstr, SvCUR(sstr)); |
10795 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10796 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10797 | SvNV_set(dstr, SvNVX(sstr)); |
83841fad | 10798 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10799 | break; |
10800 | case SVt_PVMG: | |
10801 | SvANY(dstr) = new_XPVMG(); | |
b162af07 SP |
10802 | SvCUR_set(dstr, SvCUR(sstr)); |
10803 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10804 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10805 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10806 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10807 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10808 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10809 | break; |
10810 | case SVt_PVBM: | |
10811 | SvANY(dstr) = new_XPVBM(); | |
b162af07 SP |
10812 | SvCUR_set(dstr, SvCUR(sstr)); |
10813 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10814 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10815 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10816 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10817 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10818 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10819 | BmRARE(dstr) = BmRARE(sstr); |
10820 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
10821 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
10822 | break; | |
10823 | case SVt_PVLV: | |
10824 | SvANY(dstr) = new_XPVLV(); | |
b162af07 SP |
10825 | SvCUR_set(dstr, SvCUR(sstr)); |
10826 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10827 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10828 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10829 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10830 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10831 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10832 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ |
10833 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
dd28f7bb DM |
10834 | if (LvTYPE(sstr) == 't') /* for tie: unrefcnted fake (SV**) */ |
10835 | LvTARG(dstr) = dstr; | |
10836 | else if (LvTYPE(sstr) == 'T') /* for tie: fake HE */ | |
10837 | LvTARG(dstr) = (SV*)he_dup((HE*)LvTARG(sstr), 0, param); | |
10838 | else | |
10839 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr), param); | |
1d7c1841 GS |
10840 | LvTYPE(dstr) = LvTYPE(sstr); |
10841 | break; | |
10842 | case SVt_PVGV: | |
7fb37951 | 10843 | if (GvUNIQUE((GV*)sstr)) { |
5bd07a3d | 10844 | SV *share; |
59b40662 | 10845 | if ((share = gv_share(sstr, param))) { |
5bd07a3d DM |
10846 | del_SV(dstr); |
10847 | dstr = share; | |
37e20706 | 10848 | ptr_table_store(PL_ptr_table, sstr, dstr); |
5bd07a3d DM |
10849 | #if 0 |
10850 | PerlIO_printf(Perl_debug_log, "sv_dup: sharing %s::%s\n", | |
10851 | HvNAME(GvSTASH(share)), GvNAME(share)); | |
10852 | #endif | |
10853 | break; | |
10854 | } | |
10855 | } | |
1d7c1841 | 10856 | SvANY(dstr) = new_XPVGV(); |
b162af07 SP |
10857 | SvCUR_set(dstr, SvCUR(sstr)); |
10858 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10859 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10860 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10861 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10862 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10863 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
1d7c1841 GS |
10864 | GvNAMELEN(dstr) = GvNAMELEN(sstr); |
10865 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
d2d73c3e | 10866 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr), param); |
1d7c1841 | 10867 | GvFLAGS(dstr) = GvFLAGS(sstr); |
d2d73c3e | 10868 | GvGP(dstr) = gp_dup(GvGP(sstr), param); |
1d7c1841 GS |
10869 | (void)GpREFCNT_inc(GvGP(dstr)); |
10870 | break; | |
10871 | case SVt_PVIO: | |
10872 | SvANY(dstr) = new_XPVIO(); | |
b162af07 SP |
10873 | SvCUR_set(dstr, SvCUR(sstr)); |
10874 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10875 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10876 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10877 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10878 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10879 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
a8fc9800 | 10880 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
10881 | if (IoOFP(sstr) == IoIFP(sstr)) |
10882 | IoOFP(dstr) = IoIFP(dstr); | |
10883 | else | |
a8fc9800 | 10884 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr), param); |
1d7c1841 GS |
10885 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
10886 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
10887 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
10888 | else | |
10889 | IoDIRP(dstr) = IoDIRP(sstr); | |
10890 | IoLINES(dstr) = IoLINES(sstr); | |
10891 | IoPAGE(dstr) = IoPAGE(sstr); | |
10892 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
10893 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
7a5fa8a2 | 10894 | if(IoFLAGS(sstr) & IOf_FAKE_DIRP) { |
5a37521b AB |
10895 | /* I have no idea why fake dirp (rsfps) |
10896 | should be treaded differently but otherwise | |
10897 | we end up with leaks -- sky*/ | |
10898 | IoTOP_GV(dstr) = gv_dup_inc(IoTOP_GV(sstr), param); | |
10899 | IoFMT_GV(dstr) = gv_dup_inc(IoFMT_GV(sstr), param); | |
10900 | IoBOTTOM_GV(dstr) = gv_dup_inc(IoBOTTOM_GV(sstr), param); | |
10901 | } else { | |
10902 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr), param); | |
10903 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr), param); | |
10904 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr), param); | |
10905 | } | |
1d7c1841 | 10906 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); |
1d7c1841 | 10907 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); |
1d7c1841 | 10908 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); |
1d7c1841 GS |
10909 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); |
10910 | IoTYPE(dstr) = IoTYPE(sstr); | |
10911 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
10912 | break; | |
10913 | case SVt_PVAV: | |
10914 | SvANY(dstr) = new_XPVAV(); | |
b162af07 SP |
10915 | SvCUR_set(dstr, SvCUR(sstr)); |
10916 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10917 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10918 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10919 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10920 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
d2d73c3e | 10921 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr), param); |
1d7c1841 GS |
10922 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); |
10923 | if (AvARRAY((AV*)sstr)) { | |
10924 | SV **dst_ary, **src_ary; | |
10925 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
10926 | ||
10927 | src_ary = AvARRAY((AV*)sstr); | |
10928 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
10929 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
f880fe2f | 10930 | SvPV_set(dstr, (char*)dst_ary); |
1d7c1841 GS |
10931 | AvALLOC((AV*)dstr) = dst_ary; |
10932 | if (AvREAL((AV*)sstr)) { | |
10933 | while (items-- > 0) | |
d2d73c3e | 10934 | *dst_ary++ = sv_dup_inc(*src_ary++, param); |
1d7c1841 GS |
10935 | } |
10936 | else { | |
10937 | while (items-- > 0) | |
d2d73c3e | 10938 | *dst_ary++ = sv_dup(*src_ary++, param); |
1d7c1841 GS |
10939 | } |
10940 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
10941 | while (items-- > 0) { | |
10942 | *dst_ary++ = &PL_sv_undef; | |
10943 | } | |
10944 | } | |
10945 | else { | |
f880fe2f | 10946 | SvPV_set(dstr, Nullch); |
1d7c1841 GS |
10947 | AvALLOC((AV*)dstr) = (SV**)NULL; |
10948 | } | |
10949 | break; | |
10950 | case SVt_PVHV: | |
10951 | SvANY(dstr) = new_XPVHV(); | |
b162af07 SP |
10952 | SvCUR_set(dstr, SvCUR(sstr)); |
10953 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10954 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10955 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10956 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10957 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
1d7c1841 GS |
10958 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); |
10959 | if (HvARRAY((HV*)sstr)) { | |
1d7c1841 GS |
10960 | STRLEN i = 0; |
10961 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
10962 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
10963 | Newz(0, dxhv->xhv_array, | |
10964 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
10965 | while (i <= sxhv->xhv_max) { | |
10966 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
eb160463 GS |
10967 | (bool)!!HvSHAREKEYS(sstr), |
10968 | param); | |
1d7c1841 GS |
10969 | ++i; |
10970 | } | |
eb160463 GS |
10971 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, |
10972 | (bool)!!HvSHAREKEYS(sstr), param); | |
1d7c1841 GS |
10973 | } |
10974 | else { | |
f880fe2f | 10975 | SvPV_set(dstr, Nullch); |
1d7c1841 GS |
10976 | HvEITER((HV*)dstr) = (HE*)NULL; |
10977 | } | |
10978 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
10979 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
c43294b8 | 10980 | /* Record stashes for possible cloning in Perl_clone(). */ |
6676db26 | 10981 | if(HvNAME((HV*)dstr)) |
d2d73c3e | 10982 | av_push(param->stashes, dstr); |
1d7c1841 GS |
10983 | break; |
10984 | case SVt_PVFM: | |
10985 | SvANY(dstr) = new_XPVFM(); | |
10986 | FmLINES(dstr) = FmLINES(sstr); | |
10987 | goto dup_pvcv; | |
10988 | /* NOTREACHED */ | |
10989 | case SVt_PVCV: | |
10990 | SvANY(dstr) = new_XPVCV(); | |
d2d73c3e | 10991 | dup_pvcv: |
b162af07 SP |
10992 | SvCUR_set(dstr, SvCUR(sstr)); |
10993 | SvLEN_set(dstr, SvLEN(sstr)); | |
45977657 | 10994 | SvIV_set(dstr, SvIVX(sstr)); |
9d6ce603 | 10995 | SvNV_set(dstr, SvNVX(sstr)); |
b162af07 SP |
10996 | SvMAGIC_set(dstr, mg_dup(SvMAGIC(sstr), param)); |
10997 | SvSTASH_set(dstr, hv_dup_inc(SvSTASH(sstr), param)); | |
83841fad | 10998 | Perl_rvpv_dup(aTHX_ dstr, sstr, param); |
d2d73c3e | 10999 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr), param); /* NOTE: not refcounted */ |
1d7c1841 | 11000 | CvSTART(dstr) = CvSTART(sstr); |
b34c0dd4 | 11001 | OP_REFCNT_LOCK; |
1d7c1841 | 11002 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); |
b34c0dd4 | 11003 | OP_REFCNT_UNLOCK; |
1d7c1841 GS |
11004 | CvXSUB(dstr) = CvXSUB(sstr); |
11005 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
01485f8b DM |
11006 | if (CvCONST(sstr)) { |
11007 | CvXSUBANY(dstr).any_ptr = GvUNIQUE(CvGV(sstr)) ? | |
11008 | SvREFCNT_inc(CvXSUBANY(sstr).any_ptr) : | |
8f77bfdb | 11009 | sv_dup_inc((SV *)CvXSUBANY(sstr).any_ptr, param); |
01485f8b | 11010 | } |
b23f1a86 DM |
11011 | /* don't dup if copying back - CvGV isn't refcounted, so the |
11012 | * duped GV may never be freed. A bit of a hack! DAPM */ | |
11013 | CvGV(dstr) = (param->flags & CLONEf_JOIN_IN) ? | |
11014 | Nullgv : gv_dup(CvGV(sstr), param) ; | |
d2d73c3e AB |
11015 | if (param->flags & CLONEf_COPY_STACKS) { |
11016 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
11017 | } else { | |
11018 | CvDEPTH(dstr) = 0; | |
11019 | } | |
dd2155a4 | 11020 | PAD_DUP(CvPADLIST(dstr), CvPADLIST(sstr), param); |
7dafbf52 DM |
11021 | CvOUTSIDE_SEQ(dstr) = CvOUTSIDE_SEQ(sstr); |
11022 | CvOUTSIDE(dstr) = | |
11023 | CvWEAKOUTSIDE(sstr) | |
11024 | ? cv_dup( CvOUTSIDE(sstr), param) | |
11025 | : cv_dup_inc(CvOUTSIDE(sstr), param); | |
1d7c1841 | 11026 | CvFLAGS(dstr) = CvFLAGS(sstr); |
54356c7d | 11027 | CvFILE(dstr) = CvXSUB(sstr) ? CvFILE(sstr) : SAVEPV(CvFILE(sstr)); |
1d7c1841 GS |
11028 | break; |
11029 | default: | |
c803eecc | 11030 | Perl_croak(aTHX_ "Bizarre SvTYPE [%" IVdf "]", (IV)SvTYPE(sstr)); |
1d7c1841 GS |
11031 | break; |
11032 | } | |
11033 | ||
11034 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
11035 | ++PL_sv_objcount; | |
11036 | ||
11037 | return dstr; | |
d2d73c3e | 11038 | } |
1d7c1841 | 11039 | |
645c22ef DM |
11040 | /* duplicate a context */ |
11041 | ||
1d7c1841 | 11042 | PERL_CONTEXT * |
a8fc9800 | 11043 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max, CLONE_PARAMS* param) |
1d7c1841 GS |
11044 | { |
11045 | PERL_CONTEXT *ncxs; | |
11046 | ||
11047 | if (!cxs) | |
11048 | return (PERL_CONTEXT*)NULL; | |
11049 | ||
11050 | /* look for it in the table first */ | |
11051 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
11052 | if (ncxs) | |
11053 | return ncxs; | |
11054 | ||
11055 | /* create anew and remember what it is */ | |
11056 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
11057 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
11058 | ||
11059 | while (ix >= 0) { | |
11060 | PERL_CONTEXT *cx = &cxs[ix]; | |
11061 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
11062 | ncx->cx_type = cx->cx_type; | |
11063 | if (CxTYPE(cx) == CXt_SUBST) { | |
11064 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
11065 | } | |
11066 | else { | |
11067 | ncx->blk_oldsp = cx->blk_oldsp; | |
11068 | ncx->blk_oldcop = cx->blk_oldcop; | |
1d7c1841 GS |
11069 | ncx->blk_oldmarksp = cx->blk_oldmarksp; |
11070 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
11071 | ncx->blk_oldpm = cx->blk_oldpm; | |
11072 | ncx->blk_gimme = cx->blk_gimme; | |
11073 | switch (CxTYPE(cx)) { | |
11074 | case CXt_SUB: | |
11075 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
d2d73c3e AB |
11076 | ? cv_dup_inc(cx->blk_sub.cv, param) |
11077 | : cv_dup(cx->blk_sub.cv,param)); | |
1d7c1841 | 11078 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs |
d2d73c3e | 11079 | ? av_dup_inc(cx->blk_sub.argarray, param) |
1d7c1841 | 11080 | : Nullav); |
d2d73c3e | 11081 | ncx->blk_sub.savearray = av_dup_inc(cx->blk_sub.savearray, param); |
1d7c1841 GS |
11082 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; |
11083 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
11084 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
f39bc417 | 11085 | ncx->blk_sub.retop = cx->blk_sub.retop; |
1d7c1841 GS |
11086 | break; |
11087 | case CXt_EVAL: | |
11088 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
11089 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
b47cad08 | 11090 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv, param); |
1d7c1841 | 11091 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
d2d73c3e | 11092 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text, param); |
f39bc417 | 11093 | ncx->blk_eval.retop = cx->blk_eval.retop; |
1d7c1841 GS |
11094 | break; |
11095 | case CXt_LOOP: | |
11096 | ncx->blk_loop.label = cx->blk_loop.label; | |
11097 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
11098 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
11099 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
11100 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
11101 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
11102 | ? cx->blk_loop.iterdata | |
d2d73c3e | 11103 | : gv_dup((GV*)cx->blk_loop.iterdata, param)); |
f3548bdc DM |
11104 | ncx->blk_loop.oldcomppad |
11105 | = (PAD*)ptr_table_fetch(PL_ptr_table, | |
11106 | cx->blk_loop.oldcomppad); | |
d2d73c3e AB |
11107 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave, param); |
11108 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval, param); | |
11109 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary, param); | |
1d7c1841 GS |
11110 | ncx->blk_loop.iterix = cx->blk_loop.iterix; |
11111 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
11112 | break; | |
11113 | case CXt_FORMAT: | |
d2d73c3e AB |
11114 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv, param); |
11115 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv, param); | |
11116 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv, param); | |
1d7c1841 | 11117 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; |
f39bc417 | 11118 | ncx->blk_sub.retop = cx->blk_sub.retop; |
1d7c1841 GS |
11119 | break; |
11120 | case CXt_BLOCK: | |
11121 | case CXt_NULL: | |
11122 | break; | |
11123 | } | |
11124 | } | |
11125 | --ix; | |
11126 | } | |
11127 | return ncxs; | |
11128 | } | |
11129 | ||
645c22ef DM |
11130 | /* duplicate a stack info structure */ |
11131 | ||
1d7c1841 | 11132 | PERL_SI * |
a8fc9800 | 11133 | Perl_si_dup(pTHX_ PERL_SI *si, CLONE_PARAMS* param) |
1d7c1841 GS |
11134 | { |
11135 | PERL_SI *nsi; | |
11136 | ||
11137 | if (!si) | |
11138 | return (PERL_SI*)NULL; | |
11139 | ||
11140 | /* look for it in the table first */ | |
11141 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
11142 | if (nsi) | |
11143 | return nsi; | |
11144 | ||
11145 | /* create anew and remember what it is */ | |
11146 | Newz(56, nsi, 1, PERL_SI); | |
11147 | ptr_table_store(PL_ptr_table, si, nsi); | |
11148 | ||
d2d73c3e | 11149 | nsi->si_stack = av_dup_inc(si->si_stack, param); |
1d7c1841 GS |
11150 | nsi->si_cxix = si->si_cxix; |
11151 | nsi->si_cxmax = si->si_cxmax; | |
d2d73c3e | 11152 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax, param); |
1d7c1841 | 11153 | nsi->si_type = si->si_type; |
d2d73c3e AB |
11154 | nsi->si_prev = si_dup(si->si_prev, param); |
11155 | nsi->si_next = si_dup(si->si_next, param); | |
1d7c1841 GS |
11156 | nsi->si_markoff = si->si_markoff; |
11157 | ||
11158 | return nsi; | |
11159 | } | |
11160 | ||
11161 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
11162 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
11163 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
11164 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
11165 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
11166 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
38d8b13e HS |
11167 | #define POPBOOL(ss,ix) ((ss)[--(ix)].any_bool) |
11168 | #define TOPBOOL(ss,ix) ((ss)[ix].any_bool) | |
1d7c1841 GS |
11169 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) |
11170 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
11171 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
11172 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
11173 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
11174 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
11175 | ||
11176 | /* XXXXX todo */ | |
11177 | #define pv_dup_inc(p) SAVEPV(p) | |
11178 | #define pv_dup(p) SAVEPV(p) | |
11179 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
11180 | ||
645c22ef DM |
11181 | /* map any object to the new equivent - either something in the |
11182 | * ptr table, or something in the interpreter structure | |
11183 | */ | |
11184 | ||
1d7c1841 GS |
11185 | void * |
11186 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
11187 | { | |
11188 | void *ret; | |
11189 | ||
11190 | if (!v) | |
11191 | return (void*)NULL; | |
11192 | ||
11193 | /* look for it in the table first */ | |
11194 | ret = ptr_table_fetch(PL_ptr_table, v); | |
11195 | if (ret) | |
11196 | return ret; | |
11197 | ||
11198 | /* see if it is part of the interpreter structure */ | |
11199 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
acfe0abc | 11200 | ret = (void*)(((char*)aTHX) + (((char*)v) - (char*)proto_perl)); |
05ec9bb3 | 11201 | else { |
1d7c1841 | 11202 | ret = v; |
05ec9bb3 | 11203 | } |
1d7c1841 GS |
11204 | |
11205 | return ret; | |
11206 | } | |
11207 | ||
645c22ef DM |
11208 | /* duplicate the save stack */ |
11209 | ||
1d7c1841 | 11210 | ANY * |
a8fc9800 | 11211 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl, CLONE_PARAMS* param) |
1d7c1841 GS |
11212 | { |
11213 | ANY *ss = proto_perl->Tsavestack; | |
11214 | I32 ix = proto_perl->Tsavestack_ix; | |
11215 | I32 max = proto_perl->Tsavestack_max; | |
11216 | ANY *nss; | |
11217 | SV *sv; | |
11218 | GV *gv; | |
11219 | AV *av; | |
11220 | HV *hv; | |
11221 | void* ptr; | |
11222 | int intval; | |
11223 | long longval; | |
11224 | GP *gp; | |
11225 | IV iv; | |
11226 | I32 i; | |
c4e33207 | 11227 | char *c = NULL; |
1d7c1841 | 11228 | void (*dptr) (void*); |
acfe0abc | 11229 | void (*dxptr) (pTHX_ void*); |
e977893f | 11230 | OP *o; |
1d7c1841 GS |
11231 | |
11232 | Newz(54, nss, max, ANY); | |
11233 | ||
11234 | while (ix > 0) { | |
11235 | i = POPINT(ss,ix); | |
11236 | TOPINT(nss,ix) = i; | |
11237 | switch (i) { | |
11238 | case SAVEt_ITEM: /* normal string */ | |
11239 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11240 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 11241 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 11242 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
11243 | break; |
11244 | case SAVEt_SV: /* scalar reference */ | |
11245 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11246 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 11247 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 11248 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 | 11249 | break; |
f4dd75d9 GS |
11250 | case SAVEt_GENERIC_PVREF: /* generic char* */ |
11251 | c = (char*)POPPTR(ss,ix); | |
11252 | TOPPTR(nss,ix) = pv_dup(c); | |
11253 | ptr = POPPTR(ss,ix); | |
11254 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11255 | break; | |
05ec9bb3 NIS |
11256 | case SAVEt_SHARED_PVREF: /* char* in shared space */ |
11257 | c = (char*)POPPTR(ss,ix); | |
11258 | TOPPTR(nss,ix) = savesharedpv(c); | |
11259 | ptr = POPPTR(ss,ix); | |
11260 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11261 | break; | |
1d7c1841 GS |
11262 | case SAVEt_GENERIC_SVREF: /* generic sv */ |
11263 | case SAVEt_SVREF: /* scalar reference */ | |
11264 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11265 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
11266 | ptr = POPPTR(ss,ix); |
11267 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
11268 | break; | |
11269 | case SAVEt_AV: /* array reference */ | |
11270 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 11271 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 | 11272 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 11273 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
11274 | break; |
11275 | case SAVEt_HV: /* hash reference */ | |
11276 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 11277 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 | 11278 | gv = (GV*)POPPTR(ss,ix); |
d2d73c3e | 11279 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
11280 | break; |
11281 | case SAVEt_INT: /* int reference */ | |
11282 | ptr = POPPTR(ss,ix); | |
11283 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11284 | intval = (int)POPINT(ss,ix); | |
11285 | TOPINT(nss,ix) = intval; | |
11286 | break; | |
11287 | case SAVEt_LONG: /* long reference */ | |
11288 | ptr = POPPTR(ss,ix); | |
11289 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11290 | longval = (long)POPLONG(ss,ix); | |
11291 | TOPLONG(nss,ix) = longval; | |
11292 | break; | |
11293 | case SAVEt_I32: /* I32 reference */ | |
11294 | case SAVEt_I16: /* I16 reference */ | |
11295 | case SAVEt_I8: /* I8 reference */ | |
11296 | ptr = POPPTR(ss,ix); | |
11297 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11298 | i = POPINT(ss,ix); | |
11299 | TOPINT(nss,ix) = i; | |
11300 | break; | |
11301 | case SAVEt_IV: /* IV reference */ | |
11302 | ptr = POPPTR(ss,ix); | |
11303 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11304 | iv = POPIV(ss,ix); | |
11305 | TOPIV(nss,ix) = iv; | |
11306 | break; | |
11307 | case SAVEt_SPTR: /* SV* reference */ | |
11308 | ptr = POPPTR(ss,ix); | |
11309 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11310 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11311 | TOPPTR(nss,ix) = sv_dup(sv, param); |
1d7c1841 GS |
11312 | break; |
11313 | case SAVEt_VPTR: /* random* reference */ | |
11314 | ptr = POPPTR(ss,ix); | |
11315 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11316 | ptr = POPPTR(ss,ix); | |
11317 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11318 | break; | |
11319 | case SAVEt_PPTR: /* char* reference */ | |
11320 | ptr = POPPTR(ss,ix); | |
11321 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11322 | c = (char*)POPPTR(ss,ix); | |
11323 | TOPPTR(nss,ix) = pv_dup(c); | |
11324 | break; | |
11325 | case SAVEt_HPTR: /* HV* reference */ | |
11326 | ptr = POPPTR(ss,ix); | |
11327 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11328 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 11329 | TOPPTR(nss,ix) = hv_dup(hv, param); |
1d7c1841 GS |
11330 | break; |
11331 | case SAVEt_APTR: /* AV* reference */ | |
11332 | ptr = POPPTR(ss,ix); | |
11333 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11334 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 11335 | TOPPTR(nss,ix) = av_dup(av, param); |
1d7c1841 GS |
11336 | break; |
11337 | case SAVEt_NSTAB: | |
11338 | gv = (GV*)POPPTR(ss,ix); | |
d2d73c3e | 11339 | TOPPTR(nss,ix) = gv_dup(gv, param); |
1d7c1841 GS |
11340 | break; |
11341 | case SAVEt_GP: /* scalar reference */ | |
11342 | gp = (GP*)POPPTR(ss,ix); | |
d2d73c3e | 11343 | TOPPTR(nss,ix) = gp = gp_dup(gp, param); |
1d7c1841 GS |
11344 | (void)GpREFCNT_inc(gp); |
11345 | gv = (GV*)POPPTR(ss,ix); | |
2ed3c8fc | 11346 | TOPPTR(nss,ix) = gv_dup_inc(gv, param); |
1d7c1841 GS |
11347 | c = (char*)POPPTR(ss,ix); |
11348 | TOPPTR(nss,ix) = pv_dup(c); | |
11349 | iv = POPIV(ss,ix); | |
11350 | TOPIV(nss,ix) = iv; | |
11351 | iv = POPIV(ss,ix); | |
11352 | TOPIV(nss,ix) = iv; | |
11353 | break; | |
11354 | case SAVEt_FREESV: | |
26d9b02f | 11355 | case SAVEt_MORTALIZESV: |
1d7c1841 | 11356 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 11357 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
11358 | break; |
11359 | case SAVEt_FREEOP: | |
11360 | ptr = POPPTR(ss,ix); | |
11361 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
11362 | /* these are assumed to be refcounted properly */ | |
11363 | switch (((OP*)ptr)->op_type) { | |
11364 | case OP_LEAVESUB: | |
11365 | case OP_LEAVESUBLV: | |
11366 | case OP_LEAVEEVAL: | |
11367 | case OP_LEAVE: | |
11368 | case OP_SCOPE: | |
11369 | case OP_LEAVEWRITE: | |
e977893f GS |
11370 | TOPPTR(nss,ix) = ptr; |
11371 | o = (OP*)ptr; | |
11372 | OpREFCNT_inc(o); | |
1d7c1841 GS |
11373 | break; |
11374 | default: | |
11375 | TOPPTR(nss,ix) = Nullop; | |
11376 | break; | |
11377 | } | |
11378 | } | |
11379 | else | |
11380 | TOPPTR(nss,ix) = Nullop; | |
11381 | break; | |
11382 | case SAVEt_FREEPV: | |
11383 | c = (char*)POPPTR(ss,ix); | |
11384 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
11385 | break; | |
11386 | case SAVEt_CLEARSV: | |
11387 | longval = POPLONG(ss,ix); | |
11388 | TOPLONG(nss,ix) = longval; | |
11389 | break; | |
11390 | case SAVEt_DELETE: | |
11391 | hv = (HV*)POPPTR(ss,ix); | |
d2d73c3e | 11392 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
11393 | c = (char*)POPPTR(ss,ix); |
11394 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
11395 | i = POPINT(ss,ix); | |
11396 | TOPINT(nss,ix) = i; | |
11397 | break; | |
11398 | case SAVEt_DESTRUCTOR: | |
11399 | ptr = POPPTR(ss,ix); | |
11400 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
11401 | dptr = POPDPTR(ss,ix); | |
ef75a179 | 11402 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup((void *)dptr, proto_perl); |
1d7c1841 GS |
11403 | break; |
11404 | case SAVEt_DESTRUCTOR_X: | |
11405 | ptr = POPPTR(ss,ix); | |
11406 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
11407 | dxptr = POPDXPTR(ss,ix); | |
acfe0abc | 11408 | TOPDXPTR(nss,ix) = (void (*)(pTHX_ void*))any_dup((void *)dxptr, proto_perl); |
1d7c1841 GS |
11409 | break; |
11410 | case SAVEt_REGCONTEXT: | |
11411 | case SAVEt_ALLOC: | |
11412 | i = POPINT(ss,ix); | |
11413 | TOPINT(nss,ix) = i; | |
11414 | ix -= i; | |
11415 | break; | |
11416 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
11417 | i = POPINT(ss,ix); | |
11418 | TOPINT(nss,ix) = i; | |
11419 | break; | |
11420 | case SAVEt_AELEM: /* array element */ | |
11421 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11422 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 GS |
11423 | i = POPINT(ss,ix); |
11424 | TOPINT(nss,ix) = i; | |
11425 | av = (AV*)POPPTR(ss,ix); | |
d2d73c3e | 11426 | TOPPTR(nss,ix) = av_dup_inc(av, param); |
1d7c1841 GS |
11427 | break; |
11428 | case SAVEt_HELEM: /* hash element */ | |
11429 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11430 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 11431 | sv = (SV*)POPPTR(ss,ix); |
d2d73c3e | 11432 | TOPPTR(nss,ix) = sv_dup_inc(sv, param); |
1d7c1841 | 11433 | hv = (HV*)POPPTR(ss,ix); |
d2d73c3e | 11434 | TOPPTR(nss,ix) = hv_dup_inc(hv, param); |
1d7c1841 GS |
11435 | break; |
11436 | case SAVEt_OP: | |
11437 | ptr = POPPTR(ss,ix); | |
11438 | TOPPTR(nss,ix) = ptr; | |
11439 | break; | |
11440 | case SAVEt_HINTS: | |
11441 | i = POPINT(ss,ix); | |
11442 | TOPINT(nss,ix) = i; | |
11443 | break; | |
c4410b1b GS |
11444 | case SAVEt_COMPPAD: |
11445 | av = (AV*)POPPTR(ss,ix); | |
58ed4fbe | 11446 | TOPPTR(nss,ix) = av_dup(av, param); |
c4410b1b | 11447 | break; |
c3564e5c GS |
11448 | case SAVEt_PADSV: |
11449 | longval = (long)POPLONG(ss,ix); | |
11450 | TOPLONG(nss,ix) = longval; | |
11451 | ptr = POPPTR(ss,ix); | |
11452 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
11453 | sv = (SV*)POPPTR(ss,ix); | |
d2d73c3e | 11454 | TOPPTR(nss,ix) = sv_dup(sv, param); |
c3564e5c | 11455 | break; |
a1bb4754 | 11456 | case SAVEt_BOOL: |
38d8b13e | 11457 | ptr = POPPTR(ss,ix); |
b9609c01 | 11458 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); |
38d8b13e | 11459 | longval = (long)POPBOOL(ss,ix); |
b9609c01 | 11460 | TOPBOOL(nss,ix) = (bool)longval; |
a1bb4754 | 11461 | break; |
8bd2680e MHM |
11462 | case SAVEt_SET_SVFLAGS: |
11463 | i = POPINT(ss,ix); | |
11464 | TOPINT(nss,ix) = i; | |
11465 | i = POPINT(ss,ix); | |
11466 | TOPINT(nss,ix) = i; | |
11467 | sv = (SV*)POPPTR(ss,ix); | |
11468 | TOPPTR(nss,ix) = sv_dup(sv, param); | |
11469 | break; | |
1d7c1841 GS |
11470 | default: |
11471 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
11472 | } | |
11473 | } | |
11474 | ||
11475 | return nss; | |
11476 | } | |
11477 | ||
9660f481 DM |
11478 | |
11479 | /* if sv is a stash, call $class->CLONE_SKIP(), and set the SVphv_CLONEABLE | |
11480 | * flag to the result. This is done for each stash before cloning starts, | |
11481 | * so we know which stashes want their objects cloned */ | |
11482 | ||
11483 | static void | |
11484 | do_mark_cloneable_stash(pTHX_ SV *sv) | |
11485 | { | |
11486 | if (HvNAME((HV*)sv)) { | |
11487 | GV* cloner = gv_fetchmethod_autoload((HV*)sv, "CLONE_SKIP", 0); | |
11488 | SvFLAGS(sv) |= SVphv_CLONEABLE; /* clone objects by default */ | |
11489 | if (cloner && GvCV(cloner)) { | |
11490 | dSP; | |
11491 | UV status; | |
11492 | ||
11493 | ENTER; | |
11494 | SAVETMPS; | |
11495 | PUSHMARK(SP); | |
11496 | XPUSHs(sv_2mortal(newSVpv(HvNAME((HV*)sv), 0))); | |
11497 | PUTBACK; | |
11498 | call_sv((SV*)GvCV(cloner), G_SCALAR); | |
11499 | SPAGAIN; | |
11500 | status = POPu; | |
11501 | PUTBACK; | |
11502 | FREETMPS; | |
11503 | LEAVE; | |
11504 | if (status) | |
11505 | SvFLAGS(sv) &= ~SVphv_CLONEABLE; | |
11506 | } | |
11507 | } | |
11508 | } | |
11509 | ||
11510 | ||
11511 | ||
645c22ef DM |
11512 | /* |
11513 | =for apidoc perl_clone | |
11514 | ||
11515 | Create and return a new interpreter by cloning the current one. | |
11516 | ||
4be49ee6 | 11517 | perl_clone takes these flags as parameters: |
6a78b4db | 11518 | |
7a5fa8a2 NIS |
11519 | CLONEf_COPY_STACKS - is used to, well, copy the stacks also, |
11520 | without it we only clone the data and zero the stacks, | |
11521 | with it we copy the stacks and the new perl interpreter is | |
11522 | ready to run at the exact same point as the previous one. | |
11523 | The pseudo-fork code uses COPY_STACKS while the | |
6a78b4db AB |
11524 | threads->new doesn't. |
11525 | ||
11526 | CLONEf_KEEP_PTR_TABLE | |
7a5fa8a2 NIS |
11527 | perl_clone keeps a ptr_table with the pointer of the old |
11528 | variable as a key and the new variable as a value, | |
11529 | this allows it to check if something has been cloned and not | |
11530 | clone it again but rather just use the value and increase the | |
11531 | refcount. If KEEP_PTR_TABLE is not set then perl_clone will kill | |
11532 | the ptr_table using the function | |
11533 | C<ptr_table_free(PL_ptr_table); PL_ptr_table = NULL;>, | |
11534 | reason to keep it around is if you want to dup some of your own | |
11535 | variable who are outside the graph perl scans, example of this | |
6a78b4db AB |
11536 | code is in threads.xs create |
11537 | ||
11538 | CLONEf_CLONE_HOST | |
7a5fa8a2 NIS |
11539 | This is a win32 thing, it is ignored on unix, it tells perls |
11540 | win32host code (which is c++) to clone itself, this is needed on | |
11541 | win32 if you want to run two threads at the same time, | |
11542 | if you just want to do some stuff in a separate perl interpreter | |
11543 | and then throw it away and return to the original one, | |
6a78b4db AB |
11544 | you don't need to do anything. |
11545 | ||
645c22ef DM |
11546 | =cut |
11547 | */ | |
11548 | ||
11549 | /* XXX the above needs expanding by someone who actually understands it ! */ | |
3fc56081 NK |
11550 | EXTERN_C PerlInterpreter * |
11551 | perl_clone_host(PerlInterpreter* proto_perl, UV flags); | |
645c22ef | 11552 | |
1d7c1841 GS |
11553 | PerlInterpreter * |
11554 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
11555 | { | |
27da23d5 | 11556 | dVAR; |
1d7c1841 | 11557 | #ifdef PERL_IMPLICIT_SYS |
c43294b8 AB |
11558 | |
11559 | /* perlhost.h so we need to call into it | |
11560 | to clone the host, CPerlHost should have a c interface, sky */ | |
11561 | ||
11562 | if (flags & CLONEf_CLONE_HOST) { | |
11563 | return perl_clone_host(proto_perl,flags); | |
11564 | } | |
11565 | return perl_clone_using(proto_perl, flags, | |
1d7c1841 GS |
11566 | proto_perl->IMem, |
11567 | proto_perl->IMemShared, | |
11568 | proto_perl->IMemParse, | |
11569 | proto_perl->IEnv, | |
11570 | proto_perl->IStdIO, | |
11571 | proto_perl->ILIO, | |
11572 | proto_perl->IDir, | |
11573 | proto_perl->ISock, | |
11574 | proto_perl->IProc); | |
11575 | } | |
11576 | ||
11577 | PerlInterpreter * | |
11578 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
11579 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
11580 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
11581 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
11582 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
11583 | struct IPerlProc* ipP) | |
11584 | { | |
11585 | /* XXX many of the string copies here can be optimized if they're | |
11586 | * constants; they need to be allocated as common memory and just | |
11587 | * their pointers copied. */ | |
11588 | ||
11589 | IV i; | |
64aa0685 GS |
11590 | CLONE_PARAMS clone_params; |
11591 | CLONE_PARAMS* param = &clone_params; | |
d2d73c3e | 11592 | |
1d7c1841 | 11593 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
9660f481 DM |
11594 | /* for each stash, determine whether its objects should be cloned */ |
11595 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 11596 | PERL_SET_THX(my_perl); |
1d7c1841 | 11597 | |
acfe0abc | 11598 | # ifdef DEBUGGING |
a4530404 | 11599 | Poison(my_perl, 1, PerlInterpreter); |
fd0854ff | 11600 | PL_op = Nullop; |
c008732b | 11601 | PL_curcop = (COP *)Nullop; |
1d7c1841 GS |
11602 | PL_markstack = 0; |
11603 | PL_scopestack = 0; | |
11604 | PL_savestack = 0; | |
22f7c9c9 JH |
11605 | PL_savestack_ix = 0; |
11606 | PL_savestack_max = -1; | |
66fe0623 | 11607 | PL_sig_pending = 0; |
25596c82 | 11608 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
acfe0abc | 11609 | # else /* !DEBUGGING */ |
1d7c1841 | 11610 | Zero(my_perl, 1, PerlInterpreter); |
acfe0abc | 11611 | # endif /* DEBUGGING */ |
1d7c1841 GS |
11612 | |
11613 | /* host pointers */ | |
11614 | PL_Mem = ipM; | |
11615 | PL_MemShared = ipMS; | |
11616 | PL_MemParse = ipMP; | |
11617 | PL_Env = ipE; | |
11618 | PL_StdIO = ipStd; | |
11619 | PL_LIO = ipLIO; | |
11620 | PL_Dir = ipD; | |
11621 | PL_Sock = ipS; | |
11622 | PL_Proc = ipP; | |
1d7c1841 GS |
11623 | #else /* !PERL_IMPLICIT_SYS */ |
11624 | IV i; | |
64aa0685 GS |
11625 | CLONE_PARAMS clone_params; |
11626 | CLONE_PARAMS* param = &clone_params; | |
1d7c1841 | 11627 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
9660f481 DM |
11628 | /* for each stash, determine whether its objects should be cloned */ |
11629 | S_visit(proto_perl, do_mark_cloneable_stash, SVt_PVHV, SVTYPEMASK); | |
ba869deb | 11630 | PERL_SET_THX(my_perl); |
1d7c1841 GS |
11631 | |
11632 | # ifdef DEBUGGING | |
a4530404 | 11633 | Poison(my_perl, 1, PerlInterpreter); |
fd0854ff | 11634 | PL_op = Nullop; |
c008732b | 11635 | PL_curcop = (COP *)Nullop; |
1d7c1841 GS |
11636 | PL_markstack = 0; |
11637 | PL_scopestack = 0; | |
11638 | PL_savestack = 0; | |
22f7c9c9 JH |
11639 | PL_savestack_ix = 0; |
11640 | PL_savestack_max = -1; | |
66fe0623 | 11641 | PL_sig_pending = 0; |
25596c82 | 11642 | Zero(&PL_debug_pad, 1, struct perl_debug_pad); |
1d7c1841 GS |
11643 | # else /* !DEBUGGING */ |
11644 | Zero(my_perl, 1, PerlInterpreter); | |
11645 | # endif /* DEBUGGING */ | |
11646 | #endif /* PERL_IMPLICIT_SYS */ | |
83236556 | 11647 | param->flags = flags; |
59b40662 | 11648 | param->proto_perl = proto_perl; |
1d7c1841 GS |
11649 | |
11650 | /* arena roots */ | |
11651 | PL_xiv_arenaroot = NULL; | |
11652 | PL_xiv_root = NULL; | |
612f20c3 | 11653 | PL_xnv_arenaroot = NULL; |
1d7c1841 | 11654 | PL_xnv_root = NULL; |
612f20c3 | 11655 | PL_xrv_arenaroot = NULL; |
1d7c1841 | 11656 | PL_xrv_root = NULL; |
612f20c3 | 11657 | PL_xpv_arenaroot = NULL; |
1d7c1841 | 11658 | PL_xpv_root = NULL; |
612f20c3 | 11659 | PL_xpviv_arenaroot = NULL; |
1d7c1841 | 11660 | PL_xpviv_root = NULL; |
612f20c3 | 11661 | PL_xpvnv_arenaroot = NULL; |
1d7c1841 | 11662 | PL_xpvnv_root = NULL; |
612f20c3 | 11663 | PL_xpvcv_arenaroot = NULL; |
1d7c1841 | 11664 | PL_xpvcv_root = NULL; |
612f20c3 | 11665 | PL_xpvav_arenaroot = NULL; |
1d7c1841 | 11666 | PL_xpvav_root = NULL; |
612f20c3 | 11667 | PL_xpvhv_arenaroot = NULL; |
1d7c1841 | 11668 | PL_xpvhv_root = NULL; |
612f20c3 | 11669 | PL_xpvmg_arenaroot = NULL; |
1d7c1841 | 11670 | PL_xpvmg_root = NULL; |
612f20c3 | 11671 | PL_xpvlv_arenaroot = NULL; |
1d7c1841 | 11672 | PL_xpvlv_root = NULL; |
612f20c3 | 11673 | PL_xpvbm_arenaroot = NULL; |
1d7c1841 | 11674 | PL_xpvbm_root = NULL; |
612f20c3 | 11675 | PL_he_arenaroot = NULL; |
1d7c1841 | 11676 | PL_he_root = NULL; |
32e691d0 NC |
11677 | PL_pte_arenaroot = NULL; |
11678 | PL_pte_root = NULL; | |
1d7c1841 GS |
11679 | PL_nice_chunk = NULL; |
11680 | PL_nice_chunk_size = 0; | |
11681 | PL_sv_count = 0; | |
11682 | PL_sv_objcount = 0; | |
11683 | PL_sv_root = Nullsv; | |
11684 | PL_sv_arenaroot = Nullsv; | |
11685 | ||
11686 | PL_debug = proto_perl->Idebug; | |
11687 | ||
e5dd39fc | 11688 | #ifdef USE_REENTRANT_API |
68853529 SB |
11689 | /* XXX: things like -Dm will segfault here in perlio, but doing |
11690 | * PERL_SET_CONTEXT(proto_perl); | |
11691 | * breaks too many other things | |
11692 | */ | |
59bd0823 | 11693 | Perl_reentrant_init(aTHX); |
e5dd39fc AB |
11694 | #endif |
11695 | ||
1d7c1841 GS |
11696 | /* create SV map for pointer relocation */ |
11697 | PL_ptr_table = ptr_table_new(); | |
11698 | ||
11699 | /* initialize these special pointers as early as possible */ | |
11700 | SvANY(&PL_sv_undef) = NULL; | |
11701 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
11702 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
11703 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
11704 | ||
1d7c1841 | 11705 | SvANY(&PL_sv_no) = new_XPVNV(); |
1d7c1841 | 11706 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; |
0309f36e NC |
11707 | SvFLAGS(&PL_sv_no) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11708 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
f880fe2f | 11709 | SvPV_set(&PL_sv_no, SAVEPVN(PL_No, 0)); |
b162af07 SP |
11710 | SvCUR_set(&PL_sv_no, 0); |
11711 | SvLEN_set(&PL_sv_no, 1); | |
45977657 | 11712 | SvIV_set(&PL_sv_no, 0); |
9d6ce603 | 11713 | SvNV_set(&PL_sv_no, 0); |
1d7c1841 GS |
11714 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); |
11715 | ||
1d7c1841 | 11716 | SvANY(&PL_sv_yes) = new_XPVNV(); |
1d7c1841 | 11717 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; |
0309f36e NC |
11718 | SvFLAGS(&PL_sv_yes) = SVp_IOK|SVf_IOK|SVp_NOK|SVf_NOK |
11719 | |SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
f880fe2f | 11720 | SvPV_set(&PL_sv_yes, SAVEPVN(PL_Yes, 1)); |
b162af07 SP |
11721 | SvCUR_set(&PL_sv_yes, 1); |
11722 | SvLEN_set(&PL_sv_yes, 2); | |
45977657 | 11723 | SvIV_set(&PL_sv_yes, 1); |
9d6ce603 | 11724 | SvNV_set(&PL_sv_yes, 1); |
1d7c1841 GS |
11725 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); |
11726 | ||
05ec9bb3 | 11727 | /* create (a non-shared!) shared string table */ |
1d7c1841 GS |
11728 | PL_strtab = newHV(); |
11729 | HvSHAREKEYS_off(PL_strtab); | |
11730 | hv_ksplit(PL_strtab, 512); | |
11731 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
11732 | ||
05ec9bb3 NIS |
11733 | PL_compiling = proto_perl->Icompiling; |
11734 | ||
11735 | /* These two PVs will be free'd special way so must set them same way op.c does */ | |
11736 | PL_compiling.cop_stashpv = savesharedpv(PL_compiling.cop_stashpv); | |
11737 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_stashpv, PL_compiling.cop_stashpv); | |
11738 | ||
11739 | PL_compiling.cop_file = savesharedpv(PL_compiling.cop_file); | |
11740 | ptr_table_store(PL_ptr_table, proto_perl->Icompiling.cop_file, PL_compiling.cop_file); | |
11741 | ||
1d7c1841 GS |
11742 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); |
11743 | if (!specialWARN(PL_compiling.cop_warnings)) | |
d2d73c3e | 11744 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings, param); |
ac27b0f5 | 11745 | if (!specialCopIO(PL_compiling.cop_io)) |
d2d73c3e | 11746 | PL_compiling.cop_io = sv_dup_inc(PL_compiling.cop_io, param); |
1d7c1841 GS |
11747 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); |
11748 | ||
11749 | /* pseudo environmental stuff */ | |
11750 | PL_origargc = proto_perl->Iorigargc; | |
e2975953 | 11751 | PL_origargv = proto_perl->Iorigargv; |
d2d73c3e | 11752 | |
d2d73c3e AB |
11753 | param->stashes = newAV(); /* Setup array of objects to call clone on */ |
11754 | ||
a1ea730d | 11755 | #ifdef PERLIO_LAYERS |
3a1ee7e8 NIS |
11756 | /* Clone PerlIO tables as soon as we can handle general xx_dup() */ |
11757 | PerlIO_clone(aTHX_ proto_perl, param); | |
a1ea730d | 11758 | #endif |
d2d73c3e AB |
11759 | |
11760 | PL_envgv = gv_dup(proto_perl->Ienvgv, param); | |
11761 | PL_incgv = gv_dup(proto_perl->Iincgv, param); | |
11762 | PL_hintgv = gv_dup(proto_perl->Ihintgv, param); | |
1d7c1841 | 11763 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); |
d2d73c3e AB |
11764 | PL_diehook = sv_dup_inc(proto_perl->Idiehook, param); |
11765 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook, param); | |
1d7c1841 GS |
11766 | |
11767 | /* switches */ | |
11768 | PL_minus_c = proto_perl->Iminus_c; | |
d2d73c3e | 11769 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel, param); |
1d7c1841 GS |
11770 | PL_localpatches = proto_perl->Ilocalpatches; |
11771 | PL_splitstr = proto_perl->Isplitstr; | |
11772 | PL_preprocess = proto_perl->Ipreprocess; | |
11773 | PL_minus_n = proto_perl->Iminus_n; | |
11774 | PL_minus_p = proto_perl->Iminus_p; | |
11775 | PL_minus_l = proto_perl->Iminus_l; | |
11776 | PL_minus_a = proto_perl->Iminus_a; | |
11777 | PL_minus_F = proto_perl->Iminus_F; | |
11778 | PL_doswitches = proto_perl->Idoswitches; | |
11779 | PL_dowarn = proto_perl->Idowarn; | |
11780 | PL_doextract = proto_perl->Idoextract; | |
11781 | PL_sawampersand = proto_perl->Isawampersand; | |
11782 | PL_unsafe = proto_perl->Iunsafe; | |
11783 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
d2d73c3e | 11784 | PL_e_script = sv_dup_inc(proto_perl->Ie_script, param); |
1d7c1841 GS |
11785 | PL_perldb = proto_perl->Iperldb; |
11786 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
1cbb0781 | 11787 | PL_exit_flags = proto_perl->Iexit_flags; |
1d7c1841 GS |
11788 | |
11789 | /* magical thingies */ | |
11790 | /* XXX time(&PL_basetime) when asked for? */ | |
11791 | PL_basetime = proto_perl->Ibasetime; | |
d2d73c3e | 11792 | PL_formfeed = sv_dup(proto_perl->Iformfeed, param); |
1d7c1841 GS |
11793 | |
11794 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
11795 | PL_multiline = proto_perl->Imultiline; | |
11796 | PL_statusvalue = proto_perl->Istatusvalue; | |
11797 | #ifdef VMS | |
11798 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
11799 | #endif | |
0a378802 | 11800 | PL_encoding = sv_dup(proto_perl->Iencoding, param); |
1d7c1841 | 11801 | |
4a4c6fe3 | 11802 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
11803 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
11804 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
4a4c6fe3 | 11805 | |
d2f185dc AMS |
11806 | /* Clone the regex array */ |
11807 | PL_regex_padav = newAV(); | |
11808 | { | |
11809 | I32 len = av_len((AV*)proto_perl->Iregex_padav); | |
11810 | SV** regexen = AvARRAY((AV*)proto_perl->Iregex_padav); | |
0f95fc41 AB |
11811 | av_push(PL_regex_padav, |
11812 | sv_dup_inc(regexen[0],param)); | |
11813 | for(i = 1; i <= len; i++) { | |
11814 | if(SvREPADTMP(regexen[i])) { | |
11815 | av_push(PL_regex_padav, sv_dup_inc(regexen[i], param)); | |
8cf8f3d1 | 11816 | } else { |
0f95fc41 AB |
11817 | av_push(PL_regex_padav, |
11818 | SvREFCNT_inc( | |
8cf8f3d1 | 11819 | newSViv(PTR2IV(re_dup(INT2PTR(REGEXP *, |
cbfa9890 | 11820 | SvIVX(regexen[i])), param))) |
0f95fc41 AB |
11821 | )); |
11822 | } | |
d2f185dc AMS |
11823 | } |
11824 | } | |
11825 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 11826 | |
1d7c1841 | 11827 | /* shortcuts to various I/O objects */ |
d2d73c3e AB |
11828 | PL_stdingv = gv_dup(proto_perl->Istdingv, param); |
11829 | PL_stderrgv = gv_dup(proto_perl->Istderrgv, param); | |
11830 | PL_defgv = gv_dup(proto_perl->Idefgv, param); | |
11831 | PL_argvgv = gv_dup(proto_perl->Iargvgv, param); | |
11832 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv, param); | |
11833 | PL_argvout_stack = av_dup_inc(proto_perl->Iargvout_stack, param); | |
1d7c1841 GS |
11834 | |
11835 | /* shortcuts to regexp stuff */ | |
d2d73c3e | 11836 | PL_replgv = gv_dup(proto_perl->Ireplgv, param); |
1d7c1841 GS |
11837 | |
11838 | /* shortcuts to misc objects */ | |
d2d73c3e | 11839 | PL_errgv = gv_dup(proto_perl->Ierrgv, param); |
1d7c1841 GS |
11840 | |
11841 | /* shortcuts to debugging objects */ | |
d2d73c3e AB |
11842 | PL_DBgv = gv_dup(proto_perl->IDBgv, param); |
11843 | PL_DBline = gv_dup(proto_perl->IDBline, param); | |
11844 | PL_DBsub = gv_dup(proto_perl->IDBsub, param); | |
11845 | PL_DBsingle = sv_dup(proto_perl->IDBsingle, param); | |
11846 | PL_DBtrace = sv_dup(proto_perl->IDBtrace, param); | |
11847 | PL_DBsignal = sv_dup(proto_perl->IDBsignal, param); | |
06492da6 | 11848 | PL_DBassertion = sv_dup(proto_perl->IDBassertion, param); |
d2d73c3e AB |
11849 | PL_lineary = av_dup(proto_perl->Ilineary, param); |
11850 | PL_dbargs = av_dup(proto_perl->Idbargs, param); | |
1d7c1841 GS |
11851 | |
11852 | /* symbol tables */ | |
d2d73c3e AB |
11853 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash, param); |
11854 | PL_curstash = hv_dup(proto_perl->Tcurstash, param); | |
d2d73c3e AB |
11855 | PL_debstash = hv_dup(proto_perl->Idebstash, param); |
11856 | PL_globalstash = hv_dup(proto_perl->Iglobalstash, param); | |
11857 | PL_curstname = sv_dup_inc(proto_perl->Icurstname, param); | |
11858 | ||
11859 | PL_beginav = av_dup_inc(proto_perl->Ibeginav, param); | |
ee1c5a4e | 11860 | PL_beginav_save = av_dup_inc(proto_perl->Ibeginav_save, param); |
ece599bd | 11861 | PL_checkav_save = av_dup_inc(proto_perl->Icheckav_save, param); |
d2d73c3e AB |
11862 | PL_endav = av_dup_inc(proto_perl->Iendav, param); |
11863 | PL_checkav = av_dup_inc(proto_perl->Icheckav, param); | |
11864 | PL_initav = av_dup_inc(proto_perl->Iinitav, param); | |
1d7c1841 GS |
11865 | |
11866 | PL_sub_generation = proto_perl->Isub_generation; | |
11867 | ||
11868 | /* funky return mechanisms */ | |
11869 | PL_forkprocess = proto_perl->Iforkprocess; | |
11870 | ||
11871 | /* subprocess state */ | |
d2d73c3e | 11872 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid, param); |
1d7c1841 GS |
11873 | |
11874 | /* internal state */ | |
11875 | PL_tainting = proto_perl->Itainting; | |
7135f00b | 11876 | PL_taint_warn = proto_perl->Itaint_warn; |
1d7c1841 GS |
11877 | PL_maxo = proto_perl->Imaxo; |
11878 | if (proto_perl->Iop_mask) | |
11879 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
11880 | else | |
11881 | PL_op_mask = Nullch; | |
06492da6 | 11882 | /* PL_asserting = proto_perl->Iasserting; */ |
1d7c1841 GS |
11883 | |
11884 | /* current interpreter roots */ | |
d2d73c3e | 11885 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv, param); |
1d7c1841 GS |
11886 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); |
11887 | PL_main_start = proto_perl->Imain_start; | |
e977893f | 11888 | PL_eval_root = proto_perl->Ieval_root; |
1d7c1841 GS |
11889 | PL_eval_start = proto_perl->Ieval_start; |
11890 | ||
11891 | /* runtime control stuff */ | |
11892 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
11893 | PL_copline = proto_perl->Icopline; | |
11894 | ||
11895 | PL_filemode = proto_perl->Ifilemode; | |
11896 | PL_lastfd = proto_perl->Ilastfd; | |
11897 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
11898 | PL_Argv = NULL; | |
11899 | PL_Cmd = Nullch; | |
11900 | PL_gensym = proto_perl->Igensym; | |
11901 | PL_preambled = proto_perl->Ipreambled; | |
d2d73c3e | 11902 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav, param); |
1d7c1841 GS |
11903 | PL_laststatval = proto_perl->Ilaststatval; |
11904 | PL_laststype = proto_perl->Ilaststype; | |
11905 | PL_mess_sv = Nullsv; | |
11906 | ||
d2d73c3e | 11907 | PL_ors_sv = sv_dup_inc(proto_perl->Iors_sv, param); |
1d7c1841 GS |
11908 | PL_ofmt = SAVEPV(proto_perl->Iofmt); |
11909 | ||
11910 | /* interpreter atexit processing */ | |
11911 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
11912 | if (PL_exitlistlen) { | |
11913 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
11914 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
11915 | } | |
11916 | else | |
11917 | PL_exitlist = (PerlExitListEntry*)NULL; | |
d2d73c3e | 11918 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal, param); |
19e8ce8e AB |
11919 | PL_custom_op_names = hv_dup_inc(proto_perl->Icustom_op_names,param); |
11920 | PL_custom_op_descs = hv_dup_inc(proto_perl->Icustom_op_descs,param); | |
1d7c1841 GS |
11921 | |
11922 | PL_profiledata = NULL; | |
a8fc9800 | 11923 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<', param); |
1d7c1841 | 11924 | /* PL_rsfp_filters entries have fake IoDIRP() */ |
d2d73c3e | 11925 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters, param); |
1d7c1841 | 11926 | |
d2d73c3e | 11927 | PL_compcv = cv_dup(proto_perl->Icompcv, param); |
dd2155a4 DM |
11928 | |
11929 | PAD_CLONE_VARS(proto_perl, param); | |
1d7c1841 GS |
11930 | |
11931 | #ifdef HAVE_INTERP_INTERN | |
11932 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
11933 | #endif | |
11934 | ||
11935 | /* more statics moved here */ | |
11936 | PL_generation = proto_perl->Igeneration; | |
d2d73c3e | 11937 | PL_DBcv = cv_dup(proto_perl->IDBcv, param); |
1d7c1841 GS |
11938 | |
11939 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
11940 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
11941 | ||
11942 | PL_uid = proto_perl->Iuid; | |
11943 | PL_euid = proto_perl->Ieuid; | |
11944 | PL_gid = proto_perl->Igid; | |
11945 | PL_egid = proto_perl->Iegid; | |
11946 | PL_nomemok = proto_perl->Inomemok; | |
11947 | PL_an = proto_perl->Ian; | |
1d7c1841 GS |
11948 | PL_evalseq = proto_perl->Ievalseq; |
11949 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
11950 | PL_origalen = proto_perl->Iorigalen; | |
11951 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
11952 | PL_osname = SAVEPV(proto_perl->Iosname); | |
5c728af0 | 11953 | PL_sh_path_compat = proto_perl->Ish_path_compat; /* XXX never deallocated */ |
1d7c1841 GS |
11954 | PL_sighandlerp = proto_perl->Isighandlerp; |
11955 | ||
11956 | ||
11957 | PL_runops = proto_perl->Irunops; | |
11958 | ||
11959 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
11960 | ||
11961 | #ifdef CSH | |
11962 | PL_cshlen = proto_perl->Icshlen; | |
74f1b2b8 | 11963 | PL_cshname = proto_perl->Icshname; /* XXX never deallocated */ |
1d7c1841 GS |
11964 | #endif |
11965 | ||
11966 | PL_lex_state = proto_perl->Ilex_state; | |
11967 | PL_lex_defer = proto_perl->Ilex_defer; | |
11968 | PL_lex_expect = proto_perl->Ilex_expect; | |
11969 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
11970 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
11971 | PL_lex_starts = proto_perl->Ilex_starts; | |
d2d73c3e AB |
11972 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff, param); |
11973 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl, param); | |
1d7c1841 GS |
11974 | PL_lex_op = proto_perl->Ilex_op; |
11975 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
11976 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
11977 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
11978 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
11979 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
11980 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
11981 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
11982 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
11983 | ||
11984 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
11985 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
11986 | PL_nexttoke = proto_perl->Inexttoke; | |
11987 | ||
1d773130 TB |
11988 | /* XXX This is probably masking the deeper issue of why |
11989 | * SvANY(proto_perl->Ilinestr) can be NULL at this point. For test case: | |
11990 | * http://archive.develooper.com/perl5-porters%40perl.org/msg83298.html | |
11991 | * (A little debugging with a watchpoint on it may help.) | |
11992 | */ | |
389edf32 TB |
11993 | if (SvANY(proto_perl->Ilinestr)) { |
11994 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr, param); | |
11995 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); | |
11996 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11997 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
11998 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
11999 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
12000 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
12001 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
12002 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
12003 | } | |
12004 | else { | |
12005 | PL_linestr = NEWSV(65,79); | |
12006 | sv_upgrade(PL_linestr,SVt_PVIV); | |
12007 | sv_setpvn(PL_linestr,"",0); | |
12008 | PL_bufptr = PL_oldbufptr = PL_oldoldbufptr = PL_linestart = SvPVX(PL_linestr); | |
12009 | } | |
1d7c1841 | 12010 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); |
1d7c1841 GS |
12011 | PL_pending_ident = proto_perl->Ipending_ident; |
12012 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
12013 | ||
12014 | PL_expect = proto_perl->Iexpect; | |
12015 | ||
12016 | PL_multi_start = proto_perl->Imulti_start; | |
12017 | PL_multi_end = proto_perl->Imulti_end; | |
12018 | PL_multi_open = proto_perl->Imulti_open; | |
12019 | PL_multi_close = proto_perl->Imulti_close; | |
12020 | ||
12021 | PL_error_count = proto_perl->Ierror_count; | |
12022 | PL_subline = proto_perl->Isubline; | |
d2d73c3e | 12023 | PL_subname = sv_dup_inc(proto_perl->Isubname, param); |
1d7c1841 | 12024 | |
1d773130 | 12025 | /* XXX See comment on SvANY(proto_perl->Ilinestr) above */ |
389edf32 TB |
12026 | if (SvANY(proto_perl->Ilinestr)) { |
12027 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
12028 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
12029 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
12030 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
12031 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
12032 | } | |
12033 | else { | |
12034 | PL_last_uni = SvPVX(PL_linestr); | |
12035 | PL_last_lop = SvPVX(PL_linestr); | |
12036 | PL_last_lop_op = 0; | |
12037 | } | |
1d7c1841 | 12038 | PL_in_my = proto_perl->Iin_my; |
d2d73c3e | 12039 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash, param); |
1d7c1841 GS |
12040 | #ifdef FCRYPT |
12041 | PL_cryptseen = proto_perl->Icryptseen; | |
12042 | #endif | |
12043 | ||
12044 | PL_hints = proto_perl->Ihints; | |
12045 | ||
12046 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
12047 | ||
12048 | #ifdef USE_LOCALE_COLLATE | |
12049 | PL_collation_ix = proto_perl->Icollation_ix; | |
12050 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
12051 | PL_collation_standard = proto_perl->Icollation_standard; | |
12052 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
12053 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
12054 | #endif /* USE_LOCALE_COLLATE */ | |
12055 | ||
12056 | #ifdef USE_LOCALE_NUMERIC | |
12057 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
12058 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
12059 | PL_numeric_local = proto_perl->Inumeric_local; | |
d2d73c3e | 12060 | PL_numeric_radix_sv = sv_dup_inc(proto_perl->Inumeric_radix_sv, param); |
1d7c1841 GS |
12061 | #endif /* !USE_LOCALE_NUMERIC */ |
12062 | ||
12063 | /* utf8 character classes */ | |
d2d73c3e AB |
12064 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum, param); |
12065 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc, param); | |
12066 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii, param); | |
12067 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha, param); | |
12068 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space, param); | |
12069 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl, param); | |
12070 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph, param); | |
12071 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit, param); | |
12072 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper, param); | |
12073 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower, param); | |
12074 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print, param); | |
12075 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct, param); | |
12076 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit, param); | |
12077 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark, param); | |
12078 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper, param); | |
12079 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle, param); | |
12080 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower, param); | |
b4e400f9 | 12081 | PL_utf8_tofold = sv_dup_inc(proto_perl->Iutf8_tofold, param); |
82686b01 JH |
12082 | PL_utf8_idstart = sv_dup_inc(proto_perl->Iutf8_idstart, param); |
12083 | PL_utf8_idcont = sv_dup_inc(proto_perl->Iutf8_idcont, param); | |
1d7c1841 | 12084 | |
6c3182a5 | 12085 | /* Did the locale setup indicate UTF-8? */ |
9769094f | 12086 | PL_utf8locale = proto_perl->Iutf8locale; |
6c3182a5 JH |
12087 | /* Unicode features (see perlrun/-C) */ |
12088 | PL_unicode = proto_perl->Iunicode; | |
12089 | ||
12090 | /* Pre-5.8 signals control */ | |
12091 | PL_signals = proto_perl->Isignals; | |
12092 | ||
12093 | /* times() ticks per second */ | |
12094 | PL_clocktick = proto_perl->Iclocktick; | |
12095 | ||
12096 | /* Recursion stopper for PerlIO_find_layer */ | |
12097 | PL_in_load_module = proto_perl->Iin_load_module; | |
12098 | ||
12099 | /* sort() routine */ | |
12100 | PL_sort_RealCmp = proto_perl->Isort_RealCmp; | |
12101 | ||
57c6e6d2 JH |
12102 | /* Not really needed/useful since the reenrant_retint is "volatile", |
12103 | * but do it for consistency's sake. */ | |
12104 | PL_reentrant_retint = proto_perl->Ireentrant_retint; | |
12105 | ||
15a5279a JH |
12106 | /* Hooks to shared SVs and locks. */ |
12107 | PL_sharehook = proto_perl->Isharehook; | |
12108 | PL_lockhook = proto_perl->Ilockhook; | |
12109 | PL_unlockhook = proto_perl->Iunlockhook; | |
12110 | PL_threadhook = proto_perl->Ithreadhook; | |
12111 | ||
bce260cd JH |
12112 | PL_runops_std = proto_perl->Irunops_std; |
12113 | PL_runops_dbg = proto_perl->Irunops_dbg; | |
12114 | ||
12115 | #ifdef THREADS_HAVE_PIDS | |
12116 | PL_ppid = proto_perl->Ippid; | |
12117 | #endif | |
12118 | ||
1d7c1841 GS |
12119 | /* swatch cache */ |
12120 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
12121 | PL_last_swash_klen = 0; | |
12122 | PL_last_swash_key[0]= '\0'; | |
12123 | PL_last_swash_tmps = (U8*)NULL; | |
12124 | PL_last_swash_slen = 0; | |
12125 | ||
1d7c1841 GS |
12126 | PL_glob_index = proto_perl->Iglob_index; |
12127 | PL_srand_called = proto_perl->Isrand_called; | |
504f80c1 | 12128 | PL_hash_seed = proto_perl->Ihash_seed; |
008fb0c0 | 12129 | PL_rehash_seed = proto_perl->Irehash_seed; |
1d7c1841 GS |
12130 | PL_uudmap['M'] = 0; /* reinits on demand */ |
12131 | PL_bitcount = Nullch; /* reinits on demand */ | |
12132 | ||
66fe0623 NIS |
12133 | if (proto_perl->Ipsig_pend) { |
12134 | Newz(0, PL_psig_pend, SIG_SIZE, int); | |
9dd79c3f | 12135 | } |
66fe0623 NIS |
12136 | else { |
12137 | PL_psig_pend = (int*)NULL; | |
12138 | } | |
12139 | ||
1d7c1841 | 12140 | if (proto_perl->Ipsig_ptr) { |
76d3c696 JH |
12141 | Newz(0, PL_psig_ptr, SIG_SIZE, SV*); |
12142 | Newz(0, PL_psig_name, SIG_SIZE, SV*); | |
76d3c696 | 12143 | for (i = 1; i < SIG_SIZE; i++) { |
d2d73c3e AB |
12144 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i], param); |
12145 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i], param); | |
1d7c1841 GS |
12146 | } |
12147 | } | |
12148 | else { | |
12149 | PL_psig_ptr = (SV**)NULL; | |
12150 | PL_psig_name = (SV**)NULL; | |
12151 | } | |
12152 | ||
12153 | /* thrdvar.h stuff */ | |
12154 | ||
a0739874 | 12155 | if (flags & CLONEf_COPY_STACKS) { |
1d7c1841 GS |
12156 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ |
12157 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
12158 | PL_tmps_max = proto_perl->Ttmps_max; | |
12159 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
12160 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
12161 | i = 0; | |
12162 | while (i <= PL_tmps_ix) { | |
d2d73c3e | 12163 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i], param); |
1d7c1841 GS |
12164 | ++i; |
12165 | } | |
12166 | ||
12167 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
12168 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
12169 | Newz(54, PL_markstack, i, I32); | |
12170 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
12171 | - proto_perl->Tmarkstack); | |
12172 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
12173 | - proto_perl->Tmarkstack); | |
12174 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
12175 | PL_markstack_ptr - PL_markstack + 1, I32); | |
12176 | ||
12177 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
12178 | * NOTE: unlike the others! */ | |
12179 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
12180 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
12181 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
12182 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
12183 | ||
1d7c1841 | 12184 | /* NOTE: si_dup() looks at PL_markstack */ |
d2d73c3e | 12185 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo, param); |
1d7c1841 GS |
12186 | |
12187 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
d2d73c3e AB |
12188 | PL_curstack = av_dup(proto_perl->Tcurstack, param); |
12189 | PL_mainstack = av_dup(proto_perl->Tmainstack, param); | |
1d7c1841 GS |
12190 | |
12191 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
12192 | PL_stack_base = AvARRAY(PL_curstack); | |
12193 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
12194 | - proto_perl->Tstack_base); | |
12195 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
12196 | ||
12197 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
12198 | * NOTE: unlike the others! */ | |
12199 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
12200 | PL_savestack_max = proto_perl->Tsavestack_max; | |
12201 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
d2d73c3e | 12202 | PL_savestack = ss_dup(proto_perl, param); |
1d7c1841 GS |
12203 | } |
12204 | else { | |
12205 | init_stacks(); | |
985e7056 | 12206 | ENTER; /* perl_destruct() wants to LEAVE; */ |
1d7c1841 GS |
12207 | } |
12208 | ||
12209 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
12210 | PL_top_env = &PL_start_env; | |
12211 | ||
12212 | PL_op = proto_perl->Top; | |
12213 | ||
12214 | PL_Sv = Nullsv; | |
12215 | PL_Xpv = (XPV*)NULL; | |
12216 | PL_na = proto_perl->Tna; | |
12217 | ||
12218 | PL_statbuf = proto_perl->Tstatbuf; | |
12219 | PL_statcache = proto_perl->Tstatcache; | |
d2d73c3e AB |
12220 | PL_statgv = gv_dup(proto_perl->Tstatgv, param); |
12221 | PL_statname = sv_dup_inc(proto_perl->Tstatname, param); | |
1d7c1841 GS |
12222 | #ifdef HAS_TIMES |
12223 | PL_timesbuf = proto_perl->Ttimesbuf; | |
12224 | #endif | |
12225 | ||
12226 | PL_tainted = proto_perl->Ttainted; | |
12227 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
d2d73c3e AB |
12228 | PL_rs = sv_dup_inc(proto_perl->Trs, param); |
12229 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv, param); | |
12230 | PL_ofs_sv = sv_dup_inc(proto_perl->Tofs_sv, param); | |
12231 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv, param); | |
1d7c1841 | 12232 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ |
d2d73c3e AB |
12233 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget, param); |
12234 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget, param); | |
12235 | PL_formtarget = sv_dup(proto_perl->Tformtarget, param); | |
1d7c1841 GS |
12236 | |
12237 | PL_restartop = proto_perl->Trestartop; | |
12238 | PL_in_eval = proto_perl->Tin_eval; | |
12239 | PL_delaymagic = proto_perl->Tdelaymagic; | |
12240 | PL_dirty = proto_perl->Tdirty; | |
12241 | PL_localizing = proto_perl->Tlocalizing; | |
12242 | ||
d2d73c3e | 12243 | PL_errors = sv_dup_inc(proto_perl->Terrors, param); |
dd28f7bb | 12244 | PL_hv_fetch_ent_mh = Nullhe; |
1d7c1841 GS |
12245 | PL_modcount = proto_perl->Tmodcount; |
12246 | PL_lastgotoprobe = Nullop; | |
12247 | PL_dumpindent = proto_perl->Tdumpindent; | |
12248 | ||
12249 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
d2d73c3e AB |
12250 | PL_sortstash = hv_dup(proto_perl->Tsortstash, param); |
12251 | PL_firstgv = gv_dup(proto_perl->Tfirstgv, param); | |
12252 | PL_secondgv = gv_dup(proto_perl->Tsecondgv, param); | |
1d7c1841 GS |
12253 | PL_sortcxix = proto_perl->Tsortcxix; |
12254 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
12255 | PL_efloatsize = 0; /* reinits on demand */ | |
12256 | ||
12257 | /* regex stuff */ | |
12258 | ||
12259 | PL_screamfirst = NULL; | |
12260 | PL_screamnext = NULL; | |
12261 | PL_maxscream = -1; /* reinits on demand */ | |
12262 | PL_lastscream = Nullsv; | |
12263 | ||
12264 | PL_watchaddr = NULL; | |
12265 | PL_watchok = Nullch; | |
12266 | ||
12267 | PL_regdummy = proto_perl->Tregdummy; | |
1d7c1841 GS |
12268 | PL_regprecomp = Nullch; |
12269 | PL_regnpar = 0; | |
12270 | PL_regsize = 0; | |
1d7c1841 GS |
12271 | PL_colorset = 0; /* reinits PL_colors[] */ |
12272 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
1d7c1841 GS |
12273 | PL_reginput = Nullch; |
12274 | PL_regbol = Nullch; | |
12275 | PL_regeol = Nullch; | |
12276 | PL_regstartp = (I32*)NULL; | |
12277 | PL_regendp = (I32*)NULL; | |
12278 | PL_reglastparen = (U32*)NULL; | |
2d862feb | 12279 | PL_reglastcloseparen = (U32*)NULL; |
1d7c1841 | 12280 | PL_regtill = Nullch; |
1d7c1841 GS |
12281 | PL_reg_start_tmp = (char**)NULL; |
12282 | PL_reg_start_tmpl = 0; | |
12283 | PL_regdata = (struct reg_data*)NULL; | |
12284 | PL_bostr = Nullch; | |
12285 | PL_reg_flags = 0; | |
12286 | PL_reg_eval_set = 0; | |
12287 | PL_regnarrate = 0; | |
12288 | PL_regprogram = (regnode*)NULL; | |
12289 | PL_regindent = 0; | |
12290 | PL_regcc = (CURCUR*)NULL; | |
12291 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
12292 | PL_reg_re = (regexp*)NULL; | |
12293 | PL_reg_ganch = Nullch; | |
12294 | PL_reg_sv = Nullsv; | |
53c4c00c | 12295 | PL_reg_match_utf8 = FALSE; |
1d7c1841 GS |
12296 | PL_reg_magic = (MAGIC*)NULL; |
12297 | PL_reg_oldpos = 0; | |
12298 | PL_reg_oldcurpm = (PMOP*)NULL; | |
12299 | PL_reg_curpm = (PMOP*)NULL; | |
12300 | PL_reg_oldsaved = Nullch; | |
12301 | PL_reg_oldsavedlen = 0; | |
ed252734 | 12302 | #ifdef PERL_COPY_ON_WRITE |
504cff3b | 12303 | PL_nrs = Nullsv; |
ed252734 | 12304 | #endif |
1d7c1841 GS |
12305 | PL_reg_maxiter = 0; |
12306 | PL_reg_leftiter = 0; | |
12307 | PL_reg_poscache = Nullch; | |
12308 | PL_reg_poscache_size= 0; | |
12309 | ||
12310 | /* RE engine - function pointers */ | |
12311 | PL_regcompp = proto_perl->Tregcompp; | |
12312 | PL_regexecp = proto_perl->Tregexecp; | |
12313 | PL_regint_start = proto_perl->Tregint_start; | |
12314 | PL_regint_string = proto_perl->Tregint_string; | |
12315 | PL_regfree = proto_perl->Tregfree; | |
12316 | ||
12317 | PL_reginterp_cnt = 0; | |
12318 | PL_reg_starttry = 0; | |
12319 | ||
a2efc822 SC |
12320 | /* Pluggable optimizer */ |
12321 | PL_peepp = proto_perl->Tpeepp; | |
12322 | ||
081fc587 AB |
12323 | PL_stashcache = newHV(); |
12324 | ||
a0739874 DM |
12325 | if (!(flags & CLONEf_KEEP_PTR_TABLE)) { |
12326 | ptr_table_free(PL_ptr_table); | |
12327 | PL_ptr_table = NULL; | |
12328 | } | |
8cf8f3d1 | 12329 | |
f284b03f AMS |
12330 | /* Call the ->CLONE method, if it exists, for each of the stashes |
12331 | identified by sv_dup() above. | |
12332 | */ | |
d2d73c3e AB |
12333 | while(av_len(param->stashes) != -1) { |
12334 | HV* stash = (HV*) av_shift(param->stashes); | |
f284b03f AMS |
12335 | GV* cloner = gv_fetchmethod_autoload(stash, "CLONE", 0); |
12336 | if (cloner && GvCV(cloner)) { | |
12337 | dSP; | |
12338 | ENTER; | |
12339 | SAVETMPS; | |
12340 | PUSHMARK(SP); | |
9660f481 | 12341 | XPUSHs(sv_2mortal(newSVpv(HvNAME(stash), 0))); |
f284b03f AMS |
12342 | PUTBACK; |
12343 | call_sv((SV*)GvCV(cloner), G_DISCARD); | |
12344 | FREETMPS; | |
12345 | LEAVE; | |
12346 | } | |
4a09accc | 12347 | } |
a0739874 | 12348 | |
dc507217 | 12349 | SvREFCNT_dec(param->stashes); |
dc507217 | 12350 | |
1d7c1841 | 12351 | return my_perl; |
1d7c1841 GS |
12352 | } |
12353 | ||
1d7c1841 | 12354 | #endif /* USE_ITHREADS */ |
a0ae6670 | 12355 | |
9f4817db | 12356 | /* |
ccfc67b7 JH |
12357 | =head1 Unicode Support |
12358 | ||
9f4817db JH |
12359 | =for apidoc sv_recode_to_utf8 |
12360 | ||
5d170f3a JH |
12361 | The encoding is assumed to be an Encode object, on entry the PV |
12362 | of the sv is assumed to be octets in that encoding, and the sv | |
12363 | will be converted into Unicode (and UTF-8). | |
9f4817db | 12364 | |
5d170f3a JH |
12365 | If the sv already is UTF-8 (or if it is not POK), or if the encoding |
12366 | is not a reference, nothing is done to the sv. If the encoding is not | |
1768d7eb JH |
12367 | an C<Encode::XS> Encoding object, bad things will happen. |
12368 | (See F<lib/encoding.pm> and L<Encode>). | |
9f4817db | 12369 | |
5d170f3a | 12370 | The PV of the sv is returned. |
9f4817db | 12371 | |
5d170f3a JH |
12372 | =cut */ |
12373 | ||
12374 | char * | |
12375 | Perl_sv_recode_to_utf8(pTHX_ SV *sv, SV *encoding) | |
12376 | { | |
27da23d5 | 12377 | dVAR; |
220e2d4e | 12378 | if (SvPOK(sv) && !SvUTF8(sv) && !IN_BYTES && SvROK(encoding)) { |
d0063567 DK |
12379 | SV *uni; |
12380 | STRLEN len; | |
12381 | char *s; | |
12382 | dSP; | |
12383 | ENTER; | |
12384 | SAVETMPS; | |
220e2d4e | 12385 | save_re_context(); |
d0063567 DK |
12386 | PUSHMARK(sp); |
12387 | EXTEND(SP, 3); | |
12388 | XPUSHs(encoding); | |
12389 | XPUSHs(sv); | |
7a5fa8a2 | 12390 | /* |
f9893866 NIS |
12391 | NI-S 2002/07/09 |
12392 | Passing sv_yes is wrong - it needs to be or'ed set of constants | |
7a5fa8a2 | 12393 | for Encode::XS, while UTf-8 decode (currently) assumes a true value means |
f9893866 NIS |
12394 | remove converted chars from source. |
12395 | ||
12396 | Both will default the value - let them. | |
7a5fa8a2 | 12397 | |
d0063567 | 12398 | XPUSHs(&PL_sv_yes); |
f9893866 | 12399 | */ |
d0063567 DK |
12400 | PUTBACK; |
12401 | call_method("decode", G_SCALAR); | |
12402 | SPAGAIN; | |
12403 | uni = POPs; | |
12404 | PUTBACK; | |
12405 | s = SvPV(uni, len); | |
d0063567 DK |
12406 | if (s != SvPVX(sv)) { |
12407 | SvGROW(sv, len + 1); | |
12408 | Move(s, SvPVX(sv), len, char); | |
12409 | SvCUR_set(sv, len); | |
12410 | SvPVX(sv)[len] = 0; | |
12411 | } | |
12412 | FREETMPS; | |
12413 | LEAVE; | |
d0063567 | 12414 | SvUTF8_on(sv); |
95899a2a | 12415 | return SvPVX(sv); |
f9893866 | 12416 | } |
95899a2a | 12417 | return SvPOKp(sv) ? SvPVX(sv) : NULL; |
9f4817db JH |
12418 | } |
12419 | ||
220e2d4e IH |
12420 | /* |
12421 | =for apidoc sv_cat_decode | |
12422 | ||
12423 | The encoding is assumed to be an Encode object, the PV of the ssv is | |
12424 | assumed to be octets in that encoding and decoding the input starts | |
12425 | from the position which (PV + *offset) pointed to. The dsv will be | |
12426 | concatenated the decoded UTF-8 string from ssv. Decoding will terminate | |
12427 | when the string tstr appears in decoding output or the input ends on | |
12428 | the PV of the ssv. The value which the offset points will be modified | |
12429 | to the last input position on the ssv. | |
68795e93 | 12430 | |
220e2d4e IH |
12431 | Returns TRUE if the terminator was found, else returns FALSE. |
12432 | ||
12433 | =cut */ | |
12434 | ||
12435 | bool | |
12436 | Perl_sv_cat_decode(pTHX_ SV *dsv, SV *encoding, | |
12437 | SV *ssv, int *offset, char *tstr, int tlen) | |
12438 | { | |
27da23d5 | 12439 | dVAR; |
a73e8557 | 12440 | bool ret = FALSE; |
220e2d4e | 12441 | if (SvPOK(ssv) && SvPOK(dsv) && SvROK(encoding) && offset) { |
220e2d4e IH |
12442 | SV *offsv; |
12443 | dSP; | |
12444 | ENTER; | |
12445 | SAVETMPS; | |
12446 | save_re_context(); | |
12447 | PUSHMARK(sp); | |
12448 | EXTEND(SP, 6); | |
12449 | XPUSHs(encoding); | |
12450 | XPUSHs(dsv); | |
12451 | XPUSHs(ssv); | |
12452 | XPUSHs(offsv = sv_2mortal(newSViv(*offset))); | |
12453 | XPUSHs(sv_2mortal(newSVpvn(tstr, tlen))); | |
12454 | PUTBACK; | |
12455 | call_method("cat_decode", G_SCALAR); | |
12456 | SPAGAIN; | |
12457 | ret = SvTRUE(TOPs); | |
12458 | *offset = SvIV(offsv); | |
12459 | PUTBACK; | |
12460 | FREETMPS; | |
12461 | LEAVE; | |
220e2d4e | 12462 | } |
a73e8557 JH |
12463 | else |
12464 | Perl_croak(aTHX_ "Invalid argument to sv_cat_decode"); | |
12465 | return ret; | |
220e2d4e | 12466 | } |
f9893866 | 12467 | |
241d1a3b NC |
12468 | /* |
12469 | * Local variables: | |
12470 | * c-indentation-style: bsd | |
12471 | * c-basic-offset: 4 | |
12472 | * indent-tabs-mode: t | |
12473 | * End: | |
12474 | * | |
edf815fd | 12475 | * vim: shiftwidth=4: |
241d1a3b | 12476 | */ |