Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
3818b22b | 3 | * Copyright (c) 1991-2000, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. | |
79072805 LW |
12 | */ |
13 | ||
14 | #include "EXTERN.h" | |
864dbfa3 | 15 | #define PERL_IN_SV_C |
79072805 | 16 | #include "perl.h" |
79072805 | 17 | |
51371543 | 18 | #define FCALL *f |
6fc92669 | 19 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) sv_force_normal(sv) |
2c5424a7 | 20 | |
51371543 GS |
21 | static void do_report_used(pTHXo_ SV *sv); |
22 | static void do_clean_objs(pTHXo_ SV *sv); | |
23 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
24 | static void do_clean_named_objs(pTHXo_ SV *sv); | |
25 | #endif | |
26 | static void do_clean_all(pTHXo_ SV *sv); | |
27 | ||
4561caa4 CS |
28 | /* |
29 | * "A time to plant, and a time to uproot what was planted..." | |
30 | */ | |
31 | ||
053fc874 GS |
32 | #define plant_SV(p) \ |
33 | STMT_START { \ | |
34 | SvANY(p) = (void *)PL_sv_root; \ | |
35 | SvFLAGS(p) = SVTYPEMASK; \ | |
36 | PL_sv_root = (p); \ | |
37 | --PL_sv_count; \ | |
38 | } STMT_END | |
a0d0e21e | 39 | |
fba3b22e | 40 | /* sv_mutex must be held while calling uproot_SV() */ |
053fc874 GS |
41 | #define uproot_SV(p) \ |
42 | STMT_START { \ | |
43 | (p) = PL_sv_root; \ | |
44 | PL_sv_root = (SV*)SvANY(p); \ | |
45 | ++PL_sv_count; \ | |
46 | } STMT_END | |
47 | ||
48 | #define new_SV(p) \ | |
49 | STMT_START { \ | |
50 | LOCK_SV_MUTEX; \ | |
51 | if (PL_sv_root) \ | |
52 | uproot_SV(p); \ | |
53 | else \ | |
54 | (p) = more_sv(); \ | |
55 | UNLOCK_SV_MUTEX; \ | |
56 | SvANY(p) = 0; \ | |
57 | SvREFCNT(p) = 1; \ | |
58 | SvFLAGS(p) = 0; \ | |
59 | } STMT_END | |
463ee0b2 | 60 | |
a0d0e21e | 61 | #ifdef DEBUGGING |
4561caa4 | 62 | |
053fc874 GS |
63 | #define del_SV(p) \ |
64 | STMT_START { \ | |
65 | LOCK_SV_MUTEX; \ | |
66 | if (PL_debug & 32768) \ | |
67 | del_sv(p); \ | |
68 | else \ | |
69 | plant_SV(p); \ | |
70 | UNLOCK_SV_MUTEX; \ | |
71 | } STMT_END | |
a0d0e21e | 72 | |
76e3520e | 73 | STATIC void |
cea2e8a9 | 74 | S_del_sv(pTHX_ SV *p) |
463ee0b2 | 75 | { |
3280af22 | 76 | if (PL_debug & 32768) { |
4633a7c4 | 77 | SV* sva; |
a0d0e21e LW |
78 | SV* sv; |
79 | SV* svend; | |
80 | int ok = 0; | |
3280af22 | 81 | for (sva = PL_sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
4633a7c4 LW |
82 | sv = sva + 1; |
83 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
84 | if (p >= sv && p < svend) |
85 | ok = 1; | |
86 | } | |
87 | if (!ok) { | |
0453d815 PM |
88 | if (ckWARN_d(WARN_INTERNAL)) |
89 | Perl_warner(aTHX_ WARN_INTERNAL, | |
1d7c1841 GS |
90 | "Attempt to free non-arena SV: 0x%"UVxf, |
91 | PTR2UV(p)); | |
a0d0e21e LW |
92 | return; |
93 | } | |
94 | } | |
4561caa4 | 95 | plant_SV(p); |
463ee0b2 | 96 | } |
a0d0e21e | 97 | |
4561caa4 CS |
98 | #else /* ! DEBUGGING */ |
99 | ||
100 | #define del_SV(p) plant_SV(p) | |
101 | ||
102 | #endif /* DEBUGGING */ | |
463ee0b2 | 103 | |
4633a7c4 | 104 | void |
864dbfa3 | 105 | Perl_sv_add_arena(pTHX_ char *ptr, U32 size, U32 flags) |
463ee0b2 | 106 | { |
4633a7c4 | 107 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
108 | register SV* sv; |
109 | register SV* svend; | |
14dd3ad8 | 110 | Zero(ptr, size, char); |
4633a7c4 LW |
111 | |
112 | /* The first SV in an arena isn't an SV. */ | |
3280af22 | 113 | SvANY(sva) = (void *) PL_sv_arenaroot; /* ptr to next arena */ |
4633a7c4 LW |
114 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
115 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
116 | ||
3280af22 NIS |
117 | PL_sv_arenaroot = sva; |
118 | PL_sv_root = sva + 1; | |
4633a7c4 LW |
119 | |
120 | svend = &sva[SvREFCNT(sva) - 1]; | |
121 | sv = sva + 1; | |
463ee0b2 | 122 | while (sv < svend) { |
a0d0e21e | 123 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 124 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
125 | sv++; |
126 | } | |
127 | SvANY(sv) = 0; | |
4633a7c4 LW |
128 | SvFLAGS(sv) = SVTYPEMASK; |
129 | } | |
130 | ||
fba3b22e | 131 | /* sv_mutex must be held while calling more_sv() */ |
76e3520e | 132 | STATIC SV* |
cea2e8a9 | 133 | S_more_sv(pTHX) |
4633a7c4 | 134 | { |
4561caa4 CS |
135 | register SV* sv; |
136 | ||
3280af22 NIS |
137 | if (PL_nice_chunk) { |
138 | sv_add_arena(PL_nice_chunk, PL_nice_chunk_size, 0); | |
139 | PL_nice_chunk = Nullch; | |
c07a80fd | 140 | } |
1edc1566 | 141 | else { |
142 | char *chunk; /* must use New here to match call to */ | |
143 | New(704,chunk,1008,char); /* Safefree() in sv_free_arenas() */ | |
144 | sv_add_arena(chunk, 1008, 0); | |
145 | } | |
4561caa4 CS |
146 | uproot_SV(sv); |
147 | return sv; | |
463ee0b2 LW |
148 | } |
149 | ||
76e3520e | 150 | STATIC void |
cea2e8a9 | 151 | S_visit(pTHX_ SVFUNC_t f) |
8990e307 | 152 | { |
4633a7c4 | 153 | SV* sva; |
8990e307 LW |
154 | SV* sv; |
155 | register SV* svend; | |
156 | ||
3280af22 | 157 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { |
4633a7c4 | 158 | svend = &sva[SvREFCNT(sva)]; |
4561caa4 CS |
159 | for (sv = sva + 1; sv < svend; ++sv) { |
160 | if (SvTYPE(sv) != SVTYPEMASK) | |
51371543 | 161 | (FCALL)(aTHXo_ sv); |
8990e307 LW |
162 | } |
163 | } | |
164 | } | |
165 | ||
166 | void | |
864dbfa3 | 167 | Perl_sv_report_used(pTHX) |
4561caa4 | 168 | { |
0b94c7bb | 169 | visit(do_report_used); |
4561caa4 CS |
170 | } |
171 | ||
4561caa4 | 172 | void |
864dbfa3 | 173 | Perl_sv_clean_objs(pTHX) |
4561caa4 | 174 | { |
3280af22 | 175 | PL_in_clean_objs = TRUE; |
0b94c7bb | 176 | visit(do_clean_objs); |
4561caa4 | 177 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
2d0f3c12 | 178 | /* some barnacles may yet remain, clinging to typeglobs */ |
0b94c7bb | 179 | visit(do_clean_named_objs); |
4561caa4 | 180 | #endif |
3280af22 | 181 | PL_in_clean_objs = FALSE; |
4561caa4 CS |
182 | } |
183 | ||
8990e307 | 184 | void |
864dbfa3 | 185 | Perl_sv_clean_all(pTHX) |
8990e307 | 186 | { |
3280af22 | 187 | PL_in_clean_all = TRUE; |
0b94c7bb | 188 | visit(do_clean_all); |
3280af22 | 189 | PL_in_clean_all = FALSE; |
8990e307 | 190 | } |
463ee0b2 | 191 | |
4633a7c4 | 192 | void |
864dbfa3 | 193 | Perl_sv_free_arenas(pTHX) |
4633a7c4 LW |
194 | { |
195 | SV* sva; | |
196 | SV* svanext; | |
197 | ||
198 | /* Free arenas here, but be careful about fake ones. (We assume | |
199 | contiguity of the fake ones with the corresponding real ones.) */ | |
200 | ||
3280af22 | 201 | for (sva = PL_sv_arenaroot; sva; sva = svanext) { |
4633a7c4 LW |
202 | svanext = (SV*) SvANY(sva); |
203 | while (svanext && SvFAKE(svanext)) | |
204 | svanext = (SV*) SvANY(svanext); | |
205 | ||
206 | if (!SvFAKE(sva)) | |
1edc1566 | 207 | Safefree((void *)sva); |
4633a7c4 | 208 | } |
5f05dabc | 209 | |
3280af22 NIS |
210 | if (PL_nice_chunk) |
211 | Safefree(PL_nice_chunk); | |
212 | PL_nice_chunk = Nullch; | |
213 | PL_nice_chunk_size = 0; | |
214 | PL_sv_arenaroot = 0; | |
215 | PL_sv_root = 0; | |
4633a7c4 LW |
216 | } |
217 | ||
1d7c1841 GS |
218 | void |
219 | Perl_report_uninit(pTHX) | |
220 | { | |
221 | if (PL_op) | |
222 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, | |
223 | " in ", PL_op_desc[PL_op->op_type]); | |
224 | else | |
225 | Perl_warner(aTHX_ WARN_UNINITIALIZED, PL_warn_uninit, "", ""); | |
226 | } | |
227 | ||
76e3520e | 228 | STATIC XPVIV* |
cea2e8a9 | 229 | S_new_xiv(pTHX) |
463ee0b2 | 230 | { |
ea7c11a3 | 231 | IV* xiv; |
cbe51380 GS |
232 | LOCK_SV_MUTEX; |
233 | if (!PL_xiv_root) | |
234 | more_xiv(); | |
235 | xiv = PL_xiv_root; | |
236 | /* | |
237 | * See comment in more_xiv() -- RAM. | |
238 | */ | |
239 | PL_xiv_root = *(IV**)xiv; | |
240 | UNLOCK_SV_MUTEX; | |
241 | return (XPVIV*)((char*)xiv - STRUCT_OFFSET(XPVIV, xiv_iv)); | |
463ee0b2 LW |
242 | } |
243 | ||
76e3520e | 244 | STATIC void |
cea2e8a9 | 245 | S_del_xiv(pTHX_ XPVIV *p) |
463ee0b2 | 246 | { |
23e6a22f | 247 | IV* xiv = (IV*)((char*)(p) + STRUCT_OFFSET(XPVIV, xiv_iv)); |
cbe51380 | 248 | LOCK_SV_MUTEX; |
3280af22 NIS |
249 | *(IV**)xiv = PL_xiv_root; |
250 | PL_xiv_root = xiv; | |
cbe51380 | 251 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
252 | } |
253 | ||
cbe51380 | 254 | STATIC void |
cea2e8a9 | 255 | S_more_xiv(pTHX) |
463ee0b2 | 256 | { |
ea7c11a3 SM |
257 | register IV* xiv; |
258 | register IV* xivend; | |
8c52afec IZ |
259 | XPV* ptr; |
260 | New(705, ptr, 1008/sizeof(XPV), XPV); | |
3280af22 NIS |
261 | ptr->xpv_pv = (char*)PL_xiv_arenaroot; /* linked list of xiv arenas */ |
262 | PL_xiv_arenaroot = ptr; /* to keep Purify happy */ | |
a0d0e21e | 263 | |
ea7c11a3 SM |
264 | xiv = (IV*) ptr; |
265 | xivend = &xiv[1008 / sizeof(IV) - 1]; | |
266 | xiv += (sizeof(XPV) - 1) / sizeof(IV) + 1; /* fudge by size of XPV */ | |
3280af22 | 267 | PL_xiv_root = xiv; |
463ee0b2 | 268 | while (xiv < xivend) { |
ea7c11a3 | 269 | *(IV**)xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
270 | xiv++; |
271 | } | |
ea7c11a3 | 272 | *(IV**)xiv = 0; |
463ee0b2 LW |
273 | } |
274 | ||
76e3520e | 275 | STATIC XPVNV* |
cea2e8a9 | 276 | S_new_xnv(pTHX) |
463ee0b2 | 277 | { |
65202027 | 278 | NV* xnv; |
cbe51380 GS |
279 | LOCK_SV_MUTEX; |
280 | if (!PL_xnv_root) | |
281 | more_xnv(); | |
282 | xnv = PL_xnv_root; | |
65202027 | 283 | PL_xnv_root = *(NV**)xnv; |
cbe51380 GS |
284 | UNLOCK_SV_MUTEX; |
285 | return (XPVNV*)((char*)xnv - STRUCT_OFFSET(XPVNV, xnv_nv)); | |
463ee0b2 LW |
286 | } |
287 | ||
76e3520e | 288 | STATIC void |
cea2e8a9 | 289 | S_del_xnv(pTHX_ XPVNV *p) |
463ee0b2 | 290 | { |
65202027 | 291 | NV* xnv = (NV*)((char*)(p) + STRUCT_OFFSET(XPVNV, xnv_nv)); |
cbe51380 | 292 | LOCK_SV_MUTEX; |
65202027 | 293 | *(NV**)xnv = PL_xnv_root; |
3280af22 | 294 | PL_xnv_root = xnv; |
cbe51380 | 295 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
296 | } |
297 | ||
cbe51380 | 298 | STATIC void |
cea2e8a9 | 299 | S_more_xnv(pTHX) |
463ee0b2 | 300 | { |
65202027 DS |
301 | register NV* xnv; |
302 | register NV* xnvend; | |
303 | New(711, xnv, 1008/sizeof(NV), NV); | |
304 | xnvend = &xnv[1008 / sizeof(NV) - 1]; | |
305 | xnv += (sizeof(XPVIV) - 1) / sizeof(NV) + 1; /* fudge by sizeof XPVIV */ | |
3280af22 | 306 | PL_xnv_root = xnv; |
463ee0b2 | 307 | while (xnv < xnvend) { |
65202027 | 308 | *(NV**)xnv = (NV*)(xnv + 1); |
463ee0b2 LW |
309 | xnv++; |
310 | } | |
65202027 | 311 | *(NV**)xnv = 0; |
463ee0b2 LW |
312 | } |
313 | ||
76e3520e | 314 | STATIC XRV* |
cea2e8a9 | 315 | S_new_xrv(pTHX) |
ed6116ce LW |
316 | { |
317 | XRV* xrv; | |
cbe51380 GS |
318 | LOCK_SV_MUTEX; |
319 | if (!PL_xrv_root) | |
320 | more_xrv(); | |
321 | xrv = PL_xrv_root; | |
322 | PL_xrv_root = (XRV*)xrv->xrv_rv; | |
323 | UNLOCK_SV_MUTEX; | |
324 | return xrv; | |
ed6116ce LW |
325 | } |
326 | ||
76e3520e | 327 | STATIC void |
cea2e8a9 | 328 | S_del_xrv(pTHX_ XRV *p) |
ed6116ce | 329 | { |
cbe51380 | 330 | LOCK_SV_MUTEX; |
3280af22 NIS |
331 | p->xrv_rv = (SV*)PL_xrv_root; |
332 | PL_xrv_root = p; | |
cbe51380 | 333 | UNLOCK_SV_MUTEX; |
ed6116ce LW |
334 | } |
335 | ||
cbe51380 | 336 | STATIC void |
cea2e8a9 | 337 | S_more_xrv(pTHX) |
ed6116ce | 338 | { |
ed6116ce LW |
339 | register XRV* xrv; |
340 | register XRV* xrvend; | |
3280af22 NIS |
341 | New(712, PL_xrv_root, 1008/sizeof(XRV), XRV); |
342 | xrv = PL_xrv_root; | |
ed6116ce LW |
343 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
344 | while (xrv < xrvend) { | |
345 | xrv->xrv_rv = (SV*)(xrv + 1); | |
346 | xrv++; | |
347 | } | |
348 | xrv->xrv_rv = 0; | |
ed6116ce LW |
349 | } |
350 | ||
76e3520e | 351 | STATIC XPV* |
cea2e8a9 | 352 | S_new_xpv(pTHX) |
463ee0b2 LW |
353 | { |
354 | XPV* xpv; | |
cbe51380 GS |
355 | LOCK_SV_MUTEX; |
356 | if (!PL_xpv_root) | |
357 | more_xpv(); | |
358 | xpv = PL_xpv_root; | |
359 | PL_xpv_root = (XPV*)xpv->xpv_pv; | |
360 | UNLOCK_SV_MUTEX; | |
361 | return xpv; | |
463ee0b2 LW |
362 | } |
363 | ||
76e3520e | 364 | STATIC void |
cea2e8a9 | 365 | S_del_xpv(pTHX_ XPV *p) |
463ee0b2 | 366 | { |
cbe51380 | 367 | LOCK_SV_MUTEX; |
3280af22 NIS |
368 | p->xpv_pv = (char*)PL_xpv_root; |
369 | PL_xpv_root = p; | |
cbe51380 | 370 | UNLOCK_SV_MUTEX; |
463ee0b2 LW |
371 | } |
372 | ||
cbe51380 | 373 | STATIC void |
cea2e8a9 | 374 | S_more_xpv(pTHX) |
463ee0b2 | 375 | { |
463ee0b2 LW |
376 | register XPV* xpv; |
377 | register XPV* xpvend; | |
3280af22 NIS |
378 | New(713, PL_xpv_root, 1008/sizeof(XPV), XPV); |
379 | xpv = PL_xpv_root; | |
463ee0b2 LW |
380 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
381 | while (xpv < xpvend) { | |
382 | xpv->xpv_pv = (char*)(xpv + 1); | |
383 | xpv++; | |
384 | } | |
385 | xpv->xpv_pv = 0; | |
463ee0b2 LW |
386 | } |
387 | ||
932e9ff9 VB |
388 | STATIC XPVIV* |
389 | S_new_xpviv(pTHX) | |
390 | { | |
391 | XPVIV* xpviv; | |
392 | LOCK_SV_MUTEX; | |
393 | if (!PL_xpviv_root) | |
394 | more_xpviv(); | |
395 | xpviv = PL_xpviv_root; | |
396 | PL_xpviv_root = (XPVIV*)xpviv->xpv_pv; | |
397 | UNLOCK_SV_MUTEX; | |
398 | return xpviv; | |
399 | } | |
400 | ||
401 | STATIC void | |
402 | S_del_xpviv(pTHX_ XPVIV *p) | |
403 | { | |
404 | LOCK_SV_MUTEX; | |
405 | p->xpv_pv = (char*)PL_xpviv_root; | |
406 | PL_xpviv_root = p; | |
407 | UNLOCK_SV_MUTEX; | |
408 | } | |
409 | ||
410 | ||
411 | STATIC void | |
412 | S_more_xpviv(pTHX) | |
413 | { | |
414 | register XPVIV* xpviv; | |
415 | register XPVIV* xpvivend; | |
416 | New(714, PL_xpviv_root, 1008/sizeof(XPVIV), XPVIV); | |
417 | xpviv = PL_xpviv_root; | |
418 | xpvivend = &xpviv[1008 / sizeof(XPVIV) - 1]; | |
419 | while (xpviv < xpvivend) { | |
420 | xpviv->xpv_pv = (char*)(xpviv + 1); | |
421 | xpviv++; | |
422 | } | |
423 | xpviv->xpv_pv = 0; | |
424 | } | |
425 | ||
426 | ||
427 | STATIC XPVNV* | |
428 | S_new_xpvnv(pTHX) | |
429 | { | |
430 | XPVNV* xpvnv; | |
431 | LOCK_SV_MUTEX; | |
432 | if (!PL_xpvnv_root) | |
433 | more_xpvnv(); | |
434 | xpvnv = PL_xpvnv_root; | |
435 | PL_xpvnv_root = (XPVNV*)xpvnv->xpv_pv; | |
436 | UNLOCK_SV_MUTEX; | |
437 | return xpvnv; | |
438 | } | |
439 | ||
440 | STATIC void | |
441 | S_del_xpvnv(pTHX_ XPVNV *p) | |
442 | { | |
443 | LOCK_SV_MUTEX; | |
444 | p->xpv_pv = (char*)PL_xpvnv_root; | |
445 | PL_xpvnv_root = p; | |
446 | UNLOCK_SV_MUTEX; | |
447 | } | |
448 | ||
449 | ||
450 | STATIC void | |
451 | S_more_xpvnv(pTHX) | |
452 | { | |
453 | register XPVNV* xpvnv; | |
454 | register XPVNV* xpvnvend; | |
455 | New(715, PL_xpvnv_root, 1008/sizeof(XPVNV), XPVNV); | |
456 | xpvnv = PL_xpvnv_root; | |
457 | xpvnvend = &xpvnv[1008 / sizeof(XPVNV) - 1]; | |
458 | while (xpvnv < xpvnvend) { | |
459 | xpvnv->xpv_pv = (char*)(xpvnv + 1); | |
460 | xpvnv++; | |
461 | } | |
462 | xpvnv->xpv_pv = 0; | |
463 | } | |
464 | ||
465 | ||
466 | ||
467 | STATIC XPVCV* | |
468 | S_new_xpvcv(pTHX) | |
469 | { | |
470 | XPVCV* xpvcv; | |
471 | LOCK_SV_MUTEX; | |
472 | if (!PL_xpvcv_root) | |
473 | more_xpvcv(); | |
474 | xpvcv = PL_xpvcv_root; | |
475 | PL_xpvcv_root = (XPVCV*)xpvcv->xpv_pv; | |
476 | UNLOCK_SV_MUTEX; | |
477 | return xpvcv; | |
478 | } | |
479 | ||
480 | STATIC void | |
481 | S_del_xpvcv(pTHX_ XPVCV *p) | |
482 | { | |
483 | LOCK_SV_MUTEX; | |
484 | p->xpv_pv = (char*)PL_xpvcv_root; | |
485 | PL_xpvcv_root = p; | |
486 | UNLOCK_SV_MUTEX; | |
487 | } | |
488 | ||
489 | ||
490 | STATIC void | |
491 | S_more_xpvcv(pTHX) | |
492 | { | |
493 | register XPVCV* xpvcv; | |
494 | register XPVCV* xpvcvend; | |
495 | New(716, PL_xpvcv_root, 1008/sizeof(XPVCV), XPVCV); | |
496 | xpvcv = PL_xpvcv_root; | |
497 | xpvcvend = &xpvcv[1008 / sizeof(XPVCV) - 1]; | |
498 | while (xpvcv < xpvcvend) { | |
499 | xpvcv->xpv_pv = (char*)(xpvcv + 1); | |
500 | xpvcv++; | |
501 | } | |
502 | xpvcv->xpv_pv = 0; | |
503 | } | |
504 | ||
505 | ||
506 | ||
507 | STATIC XPVAV* | |
508 | S_new_xpvav(pTHX) | |
509 | { | |
510 | XPVAV* xpvav; | |
511 | LOCK_SV_MUTEX; | |
512 | if (!PL_xpvav_root) | |
513 | more_xpvav(); | |
514 | xpvav = PL_xpvav_root; | |
515 | PL_xpvav_root = (XPVAV*)xpvav->xav_array; | |
516 | UNLOCK_SV_MUTEX; | |
517 | return xpvav; | |
518 | } | |
519 | ||
520 | STATIC void | |
521 | S_del_xpvav(pTHX_ XPVAV *p) | |
522 | { | |
523 | LOCK_SV_MUTEX; | |
524 | p->xav_array = (char*)PL_xpvav_root; | |
525 | PL_xpvav_root = p; | |
526 | UNLOCK_SV_MUTEX; | |
527 | } | |
528 | ||
529 | ||
530 | STATIC void | |
531 | S_more_xpvav(pTHX) | |
532 | { | |
533 | register XPVAV* xpvav; | |
534 | register XPVAV* xpvavend; | |
535 | New(717, PL_xpvav_root, 1008/sizeof(XPVAV), XPVAV); | |
536 | xpvav = PL_xpvav_root; | |
537 | xpvavend = &xpvav[1008 / sizeof(XPVAV) - 1]; | |
538 | while (xpvav < xpvavend) { | |
539 | xpvav->xav_array = (char*)(xpvav + 1); | |
540 | xpvav++; | |
541 | } | |
542 | xpvav->xav_array = 0; | |
543 | } | |
544 | ||
545 | ||
546 | ||
547 | STATIC XPVHV* | |
548 | S_new_xpvhv(pTHX) | |
549 | { | |
550 | XPVHV* xpvhv; | |
551 | LOCK_SV_MUTEX; | |
552 | if (!PL_xpvhv_root) | |
553 | more_xpvhv(); | |
554 | xpvhv = PL_xpvhv_root; | |
555 | PL_xpvhv_root = (XPVHV*)xpvhv->xhv_array; | |
556 | UNLOCK_SV_MUTEX; | |
557 | return xpvhv; | |
558 | } | |
559 | ||
560 | STATIC void | |
561 | S_del_xpvhv(pTHX_ XPVHV *p) | |
562 | { | |
563 | LOCK_SV_MUTEX; | |
564 | p->xhv_array = (char*)PL_xpvhv_root; | |
565 | PL_xpvhv_root = p; | |
566 | UNLOCK_SV_MUTEX; | |
567 | } | |
568 | ||
569 | ||
570 | STATIC void | |
571 | S_more_xpvhv(pTHX) | |
572 | { | |
573 | register XPVHV* xpvhv; | |
574 | register XPVHV* xpvhvend; | |
575 | New(718, PL_xpvhv_root, 1008/sizeof(XPVHV), XPVHV); | |
576 | xpvhv = PL_xpvhv_root; | |
577 | xpvhvend = &xpvhv[1008 / sizeof(XPVHV) - 1]; | |
578 | while (xpvhv < xpvhvend) { | |
579 | xpvhv->xhv_array = (char*)(xpvhv + 1); | |
580 | xpvhv++; | |
581 | } | |
582 | xpvhv->xhv_array = 0; | |
583 | } | |
584 | ||
585 | ||
586 | STATIC XPVMG* | |
587 | S_new_xpvmg(pTHX) | |
588 | { | |
589 | XPVMG* xpvmg; | |
590 | LOCK_SV_MUTEX; | |
591 | if (!PL_xpvmg_root) | |
592 | more_xpvmg(); | |
593 | xpvmg = PL_xpvmg_root; | |
594 | PL_xpvmg_root = (XPVMG*)xpvmg->xpv_pv; | |
595 | UNLOCK_SV_MUTEX; | |
596 | return xpvmg; | |
597 | } | |
598 | ||
599 | STATIC void | |
600 | S_del_xpvmg(pTHX_ XPVMG *p) | |
601 | { | |
602 | LOCK_SV_MUTEX; | |
603 | p->xpv_pv = (char*)PL_xpvmg_root; | |
604 | PL_xpvmg_root = p; | |
605 | UNLOCK_SV_MUTEX; | |
606 | } | |
607 | ||
608 | ||
609 | STATIC void | |
610 | S_more_xpvmg(pTHX) | |
611 | { | |
612 | register XPVMG* xpvmg; | |
613 | register XPVMG* xpvmgend; | |
614 | New(719, PL_xpvmg_root, 1008/sizeof(XPVMG), XPVMG); | |
615 | xpvmg = PL_xpvmg_root; | |
616 | xpvmgend = &xpvmg[1008 / sizeof(XPVMG) - 1]; | |
617 | while (xpvmg < xpvmgend) { | |
618 | xpvmg->xpv_pv = (char*)(xpvmg + 1); | |
619 | xpvmg++; | |
620 | } | |
621 | xpvmg->xpv_pv = 0; | |
622 | } | |
623 | ||
624 | ||
625 | ||
626 | STATIC XPVLV* | |
627 | S_new_xpvlv(pTHX) | |
628 | { | |
629 | XPVLV* xpvlv; | |
630 | LOCK_SV_MUTEX; | |
631 | if (!PL_xpvlv_root) | |
632 | more_xpvlv(); | |
633 | xpvlv = PL_xpvlv_root; | |
634 | PL_xpvlv_root = (XPVLV*)xpvlv->xpv_pv; | |
635 | UNLOCK_SV_MUTEX; | |
636 | return xpvlv; | |
637 | } | |
638 | ||
639 | STATIC void | |
640 | S_del_xpvlv(pTHX_ XPVLV *p) | |
641 | { | |
642 | LOCK_SV_MUTEX; | |
643 | p->xpv_pv = (char*)PL_xpvlv_root; | |
644 | PL_xpvlv_root = p; | |
645 | UNLOCK_SV_MUTEX; | |
646 | } | |
647 | ||
648 | ||
649 | STATIC void | |
650 | S_more_xpvlv(pTHX) | |
651 | { | |
652 | register XPVLV* xpvlv; | |
653 | register XPVLV* xpvlvend; | |
654 | New(720, PL_xpvlv_root, 1008/sizeof(XPVLV), XPVLV); | |
655 | xpvlv = PL_xpvlv_root; | |
656 | xpvlvend = &xpvlv[1008 / sizeof(XPVLV) - 1]; | |
657 | while (xpvlv < xpvlvend) { | |
658 | xpvlv->xpv_pv = (char*)(xpvlv + 1); | |
659 | xpvlv++; | |
660 | } | |
661 | xpvlv->xpv_pv = 0; | |
662 | } | |
663 | ||
664 | ||
665 | STATIC XPVBM* | |
666 | S_new_xpvbm(pTHX) | |
667 | { | |
668 | XPVBM* xpvbm; | |
669 | LOCK_SV_MUTEX; | |
670 | if (!PL_xpvbm_root) | |
671 | more_xpvbm(); | |
672 | xpvbm = PL_xpvbm_root; | |
673 | PL_xpvbm_root = (XPVBM*)xpvbm->xpv_pv; | |
674 | UNLOCK_SV_MUTEX; | |
675 | return xpvbm; | |
676 | } | |
677 | ||
678 | STATIC void | |
679 | S_del_xpvbm(pTHX_ XPVBM *p) | |
680 | { | |
681 | LOCK_SV_MUTEX; | |
682 | p->xpv_pv = (char*)PL_xpvbm_root; | |
683 | PL_xpvbm_root = p; | |
684 | UNLOCK_SV_MUTEX; | |
685 | } | |
686 | ||
687 | ||
688 | STATIC void | |
689 | S_more_xpvbm(pTHX) | |
690 | { | |
691 | register XPVBM* xpvbm; | |
692 | register XPVBM* xpvbmend; | |
693 | New(721, PL_xpvbm_root, 1008/sizeof(XPVBM), XPVBM); | |
694 | xpvbm = PL_xpvbm_root; | |
695 | xpvbmend = &xpvbm[1008 / sizeof(XPVBM) - 1]; | |
696 | while (xpvbm < xpvbmend) { | |
697 | xpvbm->xpv_pv = (char*)(xpvbm + 1); | |
698 | xpvbm++; | |
699 | } | |
700 | xpvbm->xpv_pv = 0; | |
701 | } | |
702 | ||
d33b2eba GS |
703 | #ifdef LEAKTEST |
704 | # define my_safemalloc(s) (void*)safexmalloc(717,s) | |
705 | # define my_safefree(p) safexfree((char*)p) | |
706 | #else | |
707 | # define my_safemalloc(s) (void*)safemalloc(s) | |
708 | # define my_safefree(p) safefree((char*)p) | |
709 | #endif | |
463ee0b2 | 710 | |
d33b2eba | 711 | #ifdef PURIFY |
463ee0b2 | 712 | |
d33b2eba GS |
713 | #define new_XIV() my_safemalloc(sizeof(XPVIV)) |
714 | #define del_XIV(p) my_safefree(p) | |
ed6116ce | 715 | |
d33b2eba GS |
716 | #define new_XNV() my_safemalloc(sizeof(XPVNV)) |
717 | #define del_XNV(p) my_safefree(p) | |
463ee0b2 | 718 | |
d33b2eba GS |
719 | #define new_XRV() my_safemalloc(sizeof(XRV)) |
720 | #define del_XRV(p) my_safefree(p) | |
8c52afec | 721 | |
d33b2eba GS |
722 | #define new_XPV() my_safemalloc(sizeof(XPV)) |
723 | #define del_XPV(p) my_safefree(p) | |
9b94d1dd | 724 | |
d33b2eba GS |
725 | #define new_XPVIV() my_safemalloc(sizeof(XPVIV)) |
726 | #define del_XPVIV(p) my_safefree(p) | |
932e9ff9 | 727 | |
d33b2eba GS |
728 | #define new_XPVNV() my_safemalloc(sizeof(XPVNV)) |
729 | #define del_XPVNV(p) my_safefree(p) | |
932e9ff9 | 730 | |
d33b2eba GS |
731 | #define new_XPVCV() my_safemalloc(sizeof(XPVCV)) |
732 | #define del_XPVCV(p) my_safefree(p) | |
932e9ff9 | 733 | |
d33b2eba GS |
734 | #define new_XPVAV() my_safemalloc(sizeof(XPVAV)) |
735 | #define del_XPVAV(p) my_safefree(p) | |
736 | ||
737 | #define new_XPVHV() my_safemalloc(sizeof(XPVHV)) | |
738 | #define del_XPVHV(p) my_safefree(p) | |
8c52afec | 739 | |
d33b2eba GS |
740 | #define new_XPVMG() my_safemalloc(sizeof(XPVMG)) |
741 | #define del_XPVMG(p) my_safefree(p) | |
742 | ||
743 | #define new_XPVLV() my_safemalloc(sizeof(XPVLV)) | |
744 | #define del_XPVLV(p) my_safefree(p) | |
745 | ||
746 | #define new_XPVBM() my_safemalloc(sizeof(XPVBM)) | |
747 | #define del_XPVBM(p) my_safefree(p) | |
748 | ||
749 | #else /* !PURIFY */ | |
750 | ||
751 | #define new_XIV() (void*)new_xiv() | |
752 | #define del_XIV(p) del_xiv((XPVIV*) p) | |
753 | ||
754 | #define new_XNV() (void*)new_xnv() | |
755 | #define del_XNV(p) del_xnv((XPVNV*) p) | |
9b94d1dd | 756 | |
d33b2eba GS |
757 | #define new_XRV() (void*)new_xrv() |
758 | #define del_XRV(p) del_xrv((XRV*) p) | |
9b94d1dd | 759 | |
d33b2eba GS |
760 | #define new_XPV() (void*)new_xpv() |
761 | #define del_XPV(p) del_xpv((XPV *)p) | |
762 | ||
763 | #define new_XPVIV() (void*)new_xpviv() | |
764 | #define del_XPVIV(p) del_xpviv((XPVIV *)p) | |
765 | ||
766 | #define new_XPVNV() (void*)new_xpvnv() | |
767 | #define del_XPVNV(p) del_xpvnv((XPVNV *)p) | |
768 | ||
769 | #define new_XPVCV() (void*)new_xpvcv() | |
770 | #define del_XPVCV(p) del_xpvcv((XPVCV *)p) | |
771 | ||
772 | #define new_XPVAV() (void*)new_xpvav() | |
773 | #define del_XPVAV(p) del_xpvav((XPVAV *)p) | |
774 | ||
775 | #define new_XPVHV() (void*)new_xpvhv() | |
776 | #define del_XPVHV(p) del_xpvhv((XPVHV *)p) | |
8c52afec | 777 | |
d33b2eba GS |
778 | #define new_XPVMG() (void*)new_xpvmg() |
779 | #define del_XPVMG(p) del_xpvmg((XPVMG *)p) | |
780 | ||
781 | #define new_XPVLV() (void*)new_xpvlv() | |
782 | #define del_XPVLV(p) del_xpvlv((XPVLV *)p) | |
783 | ||
784 | #define new_XPVBM() (void*)new_xpvbm() | |
785 | #define del_XPVBM(p) del_xpvbm((XPVBM *)p) | |
786 | ||
787 | #endif /* PURIFY */ | |
9b94d1dd | 788 | |
d33b2eba GS |
789 | #define new_XPVGV() my_safemalloc(sizeof(XPVGV)) |
790 | #define del_XPVGV(p) my_safefree(p) | |
791 | ||
792 | #define new_XPVFM() my_safemalloc(sizeof(XPVFM)) | |
793 | #define del_XPVFM(p) my_safefree(p) | |
8c52afec | 794 | |
d33b2eba GS |
795 | #define new_XPVIO() my_safemalloc(sizeof(XPVIO)) |
796 | #define del_XPVIO(p) my_safefree(p) | |
8990e307 | 797 | |
954c1994 GS |
798 | /* |
799 | =for apidoc sv_upgrade | |
800 | ||
801 | Upgrade an SV to a more complex form. Use C<SvUPGRADE>. See | |
802 | C<svtype>. | |
803 | ||
804 | =cut | |
805 | */ | |
806 | ||
79072805 | 807 | bool |
864dbfa3 | 808 | Perl_sv_upgrade(pTHX_ register SV *sv, U32 mt) |
79072805 LW |
809 | { |
810 | char* pv; | |
811 | U32 cur; | |
812 | U32 len; | |
a0d0e21e | 813 | IV iv; |
65202027 | 814 | NV nv; |
79072805 LW |
815 | MAGIC* magic; |
816 | HV* stash; | |
817 | ||
818 | if (SvTYPE(sv) == mt) | |
819 | return TRUE; | |
820 | ||
a5f75d66 AD |
821 | if (mt < SVt_PVIV) |
822 | (void)SvOOK_off(sv); | |
823 | ||
79072805 LW |
824 | switch (SvTYPE(sv)) { |
825 | case SVt_NULL: | |
826 | pv = 0; | |
827 | cur = 0; | |
828 | len = 0; | |
829 | iv = 0; | |
830 | nv = 0.0; | |
831 | magic = 0; | |
832 | stash = 0; | |
833 | break; | |
79072805 LW |
834 | case SVt_IV: |
835 | pv = 0; | |
836 | cur = 0; | |
837 | len = 0; | |
463ee0b2 | 838 | iv = SvIVX(sv); |
65202027 | 839 | nv = (NV)SvIVX(sv); |
79072805 LW |
840 | del_XIV(SvANY(sv)); |
841 | magic = 0; | |
842 | stash = 0; | |
ed6116ce | 843 | if (mt == SVt_NV) |
463ee0b2 | 844 | mt = SVt_PVNV; |
ed6116ce LW |
845 | else if (mt < SVt_PVIV) |
846 | mt = SVt_PVIV; | |
79072805 LW |
847 | break; |
848 | case SVt_NV: | |
849 | pv = 0; | |
850 | cur = 0; | |
851 | len = 0; | |
463ee0b2 | 852 | nv = SvNVX(sv); |
1bd302c3 | 853 | iv = I_V(nv); |
79072805 LW |
854 | magic = 0; |
855 | stash = 0; | |
856 | del_XNV(SvANY(sv)); | |
857 | SvANY(sv) = 0; | |
ed6116ce | 858 | if (mt < SVt_PVNV) |
79072805 LW |
859 | mt = SVt_PVNV; |
860 | break; | |
ed6116ce LW |
861 | case SVt_RV: |
862 | pv = (char*)SvRV(sv); | |
863 | cur = 0; | |
864 | len = 0; | |
56431972 RB |
865 | iv = PTR2IV(pv); |
866 | nv = PTR2NV(pv); | |
ed6116ce LW |
867 | del_XRV(SvANY(sv)); |
868 | magic = 0; | |
869 | stash = 0; | |
870 | break; | |
79072805 | 871 | case SVt_PV: |
463ee0b2 | 872 | pv = SvPVX(sv); |
79072805 LW |
873 | cur = SvCUR(sv); |
874 | len = SvLEN(sv); | |
875 | iv = 0; | |
876 | nv = 0.0; | |
877 | magic = 0; | |
878 | stash = 0; | |
879 | del_XPV(SvANY(sv)); | |
748a9306 LW |
880 | if (mt <= SVt_IV) |
881 | mt = SVt_PVIV; | |
882 | else if (mt == SVt_NV) | |
883 | mt = SVt_PVNV; | |
79072805 LW |
884 | break; |
885 | case SVt_PVIV: | |
463ee0b2 | 886 | pv = SvPVX(sv); |
79072805 LW |
887 | cur = SvCUR(sv); |
888 | len = SvLEN(sv); | |
463ee0b2 | 889 | iv = SvIVX(sv); |
79072805 LW |
890 | nv = 0.0; |
891 | magic = 0; | |
892 | stash = 0; | |
893 | del_XPVIV(SvANY(sv)); | |
894 | break; | |
895 | case SVt_PVNV: | |
463ee0b2 | 896 | pv = SvPVX(sv); |
79072805 LW |
897 | cur = SvCUR(sv); |
898 | len = SvLEN(sv); | |
463ee0b2 LW |
899 | iv = SvIVX(sv); |
900 | nv = SvNVX(sv); | |
79072805 LW |
901 | magic = 0; |
902 | stash = 0; | |
903 | del_XPVNV(SvANY(sv)); | |
904 | break; | |
905 | case SVt_PVMG: | |
463ee0b2 | 906 | pv = SvPVX(sv); |
79072805 LW |
907 | cur = SvCUR(sv); |
908 | len = SvLEN(sv); | |
463ee0b2 LW |
909 | iv = SvIVX(sv); |
910 | nv = SvNVX(sv); | |
79072805 LW |
911 | magic = SvMAGIC(sv); |
912 | stash = SvSTASH(sv); | |
913 | del_XPVMG(SvANY(sv)); | |
914 | break; | |
915 | default: | |
cea2e8a9 | 916 | Perl_croak(aTHX_ "Can't upgrade that kind of scalar"); |
79072805 LW |
917 | } |
918 | ||
919 | switch (mt) { | |
920 | case SVt_NULL: | |
cea2e8a9 | 921 | Perl_croak(aTHX_ "Can't upgrade to undef"); |
79072805 LW |
922 | case SVt_IV: |
923 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 924 | SvIVX(sv) = iv; |
79072805 LW |
925 | break; |
926 | case SVt_NV: | |
927 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 928 | SvNVX(sv) = nv; |
79072805 | 929 | break; |
ed6116ce LW |
930 | case SVt_RV: |
931 | SvANY(sv) = new_XRV(); | |
932 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 933 | break; |
79072805 LW |
934 | case SVt_PV: |
935 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 936 | SvPVX(sv) = pv; |
79072805 LW |
937 | SvCUR(sv) = cur; |
938 | SvLEN(sv) = len; | |
939 | break; | |
940 | case SVt_PVIV: | |
941 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 942 | SvPVX(sv) = pv; |
79072805 LW |
943 | SvCUR(sv) = cur; |
944 | SvLEN(sv) = len; | |
463ee0b2 | 945 | SvIVX(sv) = iv; |
79072805 | 946 | if (SvNIOK(sv)) |
a0d0e21e | 947 | (void)SvIOK_on(sv); |
79072805 LW |
948 | SvNOK_off(sv); |
949 | break; | |
950 | case SVt_PVNV: | |
951 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 952 | SvPVX(sv) = pv; |
79072805 LW |
953 | SvCUR(sv) = cur; |
954 | SvLEN(sv) = len; | |
463ee0b2 LW |
955 | SvIVX(sv) = iv; |
956 | SvNVX(sv) = nv; | |
79072805 LW |
957 | break; |
958 | case SVt_PVMG: | |
959 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 960 | SvPVX(sv) = pv; |
79072805 LW |
961 | SvCUR(sv) = cur; |
962 | SvLEN(sv) = len; | |
463ee0b2 LW |
963 | SvIVX(sv) = iv; |
964 | SvNVX(sv) = nv; | |
79072805 LW |
965 | SvMAGIC(sv) = magic; |
966 | SvSTASH(sv) = stash; | |
967 | break; | |
968 | case SVt_PVLV: | |
969 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 970 | SvPVX(sv) = pv; |
79072805 LW |
971 | SvCUR(sv) = cur; |
972 | SvLEN(sv) = len; | |
463ee0b2 LW |
973 | SvIVX(sv) = iv; |
974 | SvNVX(sv) = nv; | |
79072805 LW |
975 | SvMAGIC(sv) = magic; |
976 | SvSTASH(sv) = stash; | |
977 | LvTARGOFF(sv) = 0; | |
978 | LvTARGLEN(sv) = 0; | |
979 | LvTARG(sv) = 0; | |
980 | LvTYPE(sv) = 0; | |
981 | break; | |
982 | case SVt_PVAV: | |
983 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
984 | if (pv) |
985 | Safefree(pv); | |
2304df62 | 986 | SvPVX(sv) = 0; |
d1bf51dd | 987 | AvMAX(sv) = -1; |
93965878 | 988 | AvFILLp(sv) = -1; |
463ee0b2 LW |
989 | SvIVX(sv) = 0; |
990 | SvNVX(sv) = 0.0; | |
991 | SvMAGIC(sv) = magic; | |
992 | SvSTASH(sv) = stash; | |
993 | AvALLOC(sv) = 0; | |
79072805 LW |
994 | AvARYLEN(sv) = 0; |
995 | AvFLAGS(sv) = 0; | |
996 | break; | |
997 | case SVt_PVHV: | |
998 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
999 | if (pv) |
1000 | Safefree(pv); | |
1001 | SvPVX(sv) = 0; | |
1002 | HvFILL(sv) = 0; | |
1003 | HvMAX(sv) = 0; | |
1004 | HvKEYS(sv) = 0; | |
1005 | SvNVX(sv) = 0.0; | |
79072805 LW |
1006 | SvMAGIC(sv) = magic; |
1007 | SvSTASH(sv) = stash; | |
79072805 LW |
1008 | HvRITER(sv) = 0; |
1009 | HvEITER(sv) = 0; | |
1010 | HvPMROOT(sv) = 0; | |
1011 | HvNAME(sv) = 0; | |
79072805 LW |
1012 | break; |
1013 | case SVt_PVCV: | |
1014 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 1015 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 1016 | SvPVX(sv) = pv; |
79072805 LW |
1017 | SvCUR(sv) = cur; |
1018 | SvLEN(sv) = len; | |
463ee0b2 LW |
1019 | SvIVX(sv) = iv; |
1020 | SvNVX(sv) = nv; | |
79072805 LW |
1021 | SvMAGIC(sv) = magic; |
1022 | SvSTASH(sv) = stash; | |
79072805 LW |
1023 | break; |
1024 | case SVt_PVGV: | |
1025 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 1026 | SvPVX(sv) = pv; |
79072805 LW |
1027 | SvCUR(sv) = cur; |
1028 | SvLEN(sv) = len; | |
463ee0b2 LW |
1029 | SvIVX(sv) = iv; |
1030 | SvNVX(sv) = nv; | |
79072805 LW |
1031 | SvMAGIC(sv) = magic; |
1032 | SvSTASH(sv) = stash; | |
93a17b20 | 1033 | GvGP(sv) = 0; |
79072805 LW |
1034 | GvNAME(sv) = 0; |
1035 | GvNAMELEN(sv) = 0; | |
1036 | GvSTASH(sv) = 0; | |
a5f75d66 | 1037 | GvFLAGS(sv) = 0; |
79072805 LW |
1038 | break; |
1039 | case SVt_PVBM: | |
1040 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 1041 | SvPVX(sv) = pv; |
79072805 LW |
1042 | SvCUR(sv) = cur; |
1043 | SvLEN(sv) = len; | |
463ee0b2 LW |
1044 | SvIVX(sv) = iv; |
1045 | SvNVX(sv) = nv; | |
79072805 LW |
1046 | SvMAGIC(sv) = magic; |
1047 | SvSTASH(sv) = stash; | |
1048 | BmRARE(sv) = 0; | |
1049 | BmUSEFUL(sv) = 0; | |
1050 | BmPREVIOUS(sv) = 0; | |
1051 | break; | |
1052 | case SVt_PVFM: | |
1053 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 1054 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 1055 | SvPVX(sv) = pv; |
79072805 LW |
1056 | SvCUR(sv) = cur; |
1057 | SvLEN(sv) = len; | |
463ee0b2 LW |
1058 | SvIVX(sv) = iv; |
1059 | SvNVX(sv) = nv; | |
79072805 LW |
1060 | SvMAGIC(sv) = magic; |
1061 | SvSTASH(sv) = stash; | |
79072805 | 1062 | break; |
8990e307 LW |
1063 | case SVt_PVIO: |
1064 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 1065 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
1066 | SvPVX(sv) = pv; |
1067 | SvCUR(sv) = cur; | |
1068 | SvLEN(sv) = len; | |
1069 | SvIVX(sv) = iv; | |
1070 | SvNVX(sv) = nv; | |
1071 | SvMAGIC(sv) = magic; | |
1072 | SvSTASH(sv) = stash; | |
85e6fe83 | 1073 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
1074 | break; |
1075 | } | |
1076 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
1077 | SvFLAGS(sv) |= mt; | |
79072805 LW |
1078 | return TRUE; |
1079 | } | |
1080 | ||
79072805 | 1081 | int |
864dbfa3 | 1082 | Perl_sv_backoff(pTHX_ register SV *sv) |
79072805 LW |
1083 | { |
1084 | assert(SvOOK(sv)); | |
463ee0b2 LW |
1085 | if (SvIVX(sv)) { |
1086 | char *s = SvPVX(sv); | |
1087 | SvLEN(sv) += SvIVX(sv); | |
1088 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 1089 | SvIV_set(sv, 0); |
463ee0b2 | 1090 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
1091 | } |
1092 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 1093 | return 0; |
79072805 LW |
1094 | } |
1095 | ||
954c1994 GS |
1096 | /* |
1097 | =for apidoc sv_grow | |
1098 | ||
1099 | Expands the character buffer in the SV. This will use C<sv_unref> and will | |
1100 | upgrade the SV to C<SVt_PV>. Returns a pointer to the character buffer. | |
1101 | Use C<SvGROW>. | |
1102 | ||
1103 | =cut | |
1104 | */ | |
1105 | ||
79072805 | 1106 | char * |
864dbfa3 | 1107 | Perl_sv_grow(pTHX_ register SV *sv, register STRLEN newlen) |
79072805 LW |
1108 | { |
1109 | register char *s; | |
1110 | ||
55497cff | 1111 | #ifdef HAS_64K_LIMIT |
79072805 | 1112 | if (newlen >= 0x10000) { |
1d7c1841 GS |
1113 | PerlIO_printf(Perl_debug_log, |
1114 | "Allocation too large: %"UVxf"\n", (UV)newlen); | |
79072805 LW |
1115 | my_exit(1); |
1116 | } | |
55497cff | 1117 | #endif /* HAS_64K_LIMIT */ |
a0d0e21e LW |
1118 | if (SvROK(sv)) |
1119 | sv_unref(sv); | |
79072805 LW |
1120 | if (SvTYPE(sv) < SVt_PV) { |
1121 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 1122 | s = SvPVX(sv); |
79072805 LW |
1123 | } |
1124 | else if (SvOOK(sv)) { /* pv is offset? */ | |
1125 | sv_backoff(sv); | |
463ee0b2 | 1126 | s = SvPVX(sv); |
79072805 LW |
1127 | if (newlen > SvLEN(sv)) |
1128 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
c6f8c383 GA |
1129 | #ifdef HAS_64K_LIMIT |
1130 | if (newlen >= 0x10000) | |
1131 | newlen = 0xFFFF; | |
1132 | #endif | |
79072805 LW |
1133 | } |
1134 | else | |
463ee0b2 | 1135 | s = SvPVX(sv); |
79072805 | 1136 | if (newlen > SvLEN(sv)) { /* need more room? */ |
8d6dde3e | 1137 | if (SvLEN(sv) && s) { |
f5a32c7f | 1138 | #if defined(MYMALLOC) && !defined(LEAKTEST) |
8d6dde3e IZ |
1139 | STRLEN l = malloced_size((void*)SvPVX(sv)); |
1140 | if (newlen <= l) { | |
1141 | SvLEN_set(sv, l); | |
1142 | return s; | |
1143 | } else | |
c70c8a0a | 1144 | #endif |
79072805 | 1145 | Renew(s,newlen,char); |
8d6dde3e | 1146 | } |
79072805 LW |
1147 | else |
1148 | New(703,s,newlen,char); | |
1149 | SvPV_set(sv, s); | |
1150 | SvLEN_set(sv, newlen); | |
1151 | } | |
1152 | return s; | |
1153 | } | |
1154 | ||
954c1994 GS |
1155 | /* |
1156 | =for apidoc sv_setiv | |
1157 | ||
1158 | Copies an integer into the given SV. Does not handle 'set' magic. See | |
1159 | C<sv_setiv_mg>. | |
1160 | ||
1161 | =cut | |
1162 | */ | |
1163 | ||
79072805 | 1164 | void |
864dbfa3 | 1165 | Perl_sv_setiv(pTHX_ register SV *sv, IV i) |
79072805 | 1166 | { |
2213622d | 1167 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 LW |
1168 | switch (SvTYPE(sv)) { |
1169 | case SVt_NULL: | |
79072805 | 1170 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1171 | break; |
1172 | case SVt_NV: | |
1173 | sv_upgrade(sv, SVt_PVNV); | |
1174 | break; | |
ed6116ce | 1175 | case SVt_RV: |
463ee0b2 | 1176 | case SVt_PV: |
79072805 | 1177 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 1178 | break; |
a0d0e21e LW |
1179 | |
1180 | case SVt_PVGV: | |
a0d0e21e LW |
1181 | case SVt_PVAV: |
1182 | case SVt_PVHV: | |
1183 | case SVt_PVCV: | |
1184 | case SVt_PVFM: | |
1185 | case SVt_PVIO: | |
11343788 MB |
1186 | { |
1187 | dTHR; | |
cea2e8a9 | 1188 | Perl_croak(aTHX_ "Can't coerce %s to integer in %s", sv_reftype(sv,0), |
22c35a8c | 1189 | PL_op_desc[PL_op->op_type]); |
11343788 | 1190 | } |
463ee0b2 | 1191 | } |
a0d0e21e | 1192 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 | 1193 | SvIVX(sv) = i; |
463ee0b2 | 1194 | SvTAINT(sv); |
79072805 LW |
1195 | } |
1196 | ||
954c1994 GS |
1197 | /* |
1198 | =for apidoc sv_setiv_mg | |
1199 | ||
1200 | Like C<sv_setiv>, but also handles 'set' magic. | |
1201 | ||
1202 | =cut | |
1203 | */ | |
1204 | ||
79072805 | 1205 | void |
864dbfa3 | 1206 | Perl_sv_setiv_mg(pTHX_ register SV *sv, IV i) |
ef50df4b GS |
1207 | { |
1208 | sv_setiv(sv,i); | |
1209 | SvSETMAGIC(sv); | |
1210 | } | |
1211 | ||
954c1994 GS |
1212 | /* |
1213 | =for apidoc sv_setuv | |
1214 | ||
1215 | Copies an unsigned integer into the given SV. Does not handle 'set' magic. | |
1216 | See C<sv_setuv_mg>. | |
1217 | ||
1218 | =cut | |
1219 | */ | |
1220 | ||
ef50df4b | 1221 | void |
864dbfa3 | 1222 | Perl_sv_setuv(pTHX_ register SV *sv, UV u) |
55497cff | 1223 | { |
25da4f38 IZ |
1224 | sv_setiv(sv, 0); |
1225 | SvIsUV_on(sv); | |
1226 | SvUVX(sv) = u; | |
55497cff | 1227 | } |
1228 | ||
954c1994 GS |
1229 | /* |
1230 | =for apidoc sv_setuv_mg | |
1231 | ||
1232 | Like C<sv_setuv>, but also handles 'set' magic. | |
1233 | ||
1234 | =cut | |
1235 | */ | |
1236 | ||
55497cff | 1237 | void |
864dbfa3 | 1238 | Perl_sv_setuv_mg(pTHX_ register SV *sv, UV u) |
ef50df4b GS |
1239 | { |
1240 | sv_setuv(sv,u); | |
1241 | SvSETMAGIC(sv); | |
1242 | } | |
1243 | ||
954c1994 GS |
1244 | /* |
1245 | =for apidoc sv_setnv | |
1246 | ||
1247 | Copies a double into the given SV. Does not handle 'set' magic. See | |
1248 | C<sv_setnv_mg>. | |
1249 | ||
1250 | =cut | |
1251 | */ | |
1252 | ||
ef50df4b | 1253 | void |
65202027 | 1254 | Perl_sv_setnv(pTHX_ register SV *sv, NV num) |
79072805 | 1255 | { |
2213622d | 1256 | SV_CHECK_THINKFIRST(sv); |
a0d0e21e LW |
1257 | switch (SvTYPE(sv)) { |
1258 | case SVt_NULL: | |
1259 | case SVt_IV: | |
79072805 | 1260 | sv_upgrade(sv, SVt_NV); |
a0d0e21e | 1261 | break; |
a0d0e21e LW |
1262 | case SVt_RV: |
1263 | case SVt_PV: | |
1264 | case SVt_PVIV: | |
79072805 | 1265 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e | 1266 | break; |
827b7e14 | 1267 | |
a0d0e21e | 1268 | case SVt_PVGV: |
a0d0e21e LW |
1269 | case SVt_PVAV: |
1270 | case SVt_PVHV: | |
1271 | case SVt_PVCV: | |
1272 | case SVt_PVFM: | |
1273 | case SVt_PVIO: | |
11343788 MB |
1274 | { |
1275 | dTHR; | |
cea2e8a9 | 1276 | Perl_croak(aTHX_ "Can't coerce %s to number in %s", sv_reftype(sv,0), |
22c35a8c | 1277 | PL_op_name[PL_op->op_type]); |
11343788 | 1278 | } |
79072805 | 1279 | } |
463ee0b2 | 1280 | SvNVX(sv) = num; |
a0d0e21e | 1281 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1282 | SvTAINT(sv); |
79072805 LW |
1283 | } |
1284 | ||
954c1994 GS |
1285 | /* |
1286 | =for apidoc sv_setnv_mg | |
1287 | ||
1288 | Like C<sv_setnv>, but also handles 'set' magic. | |
1289 | ||
1290 | =cut | |
1291 | */ | |
1292 | ||
ef50df4b | 1293 | void |
65202027 | 1294 | Perl_sv_setnv_mg(pTHX_ register SV *sv, NV num) |
ef50df4b GS |
1295 | { |
1296 | sv_setnv(sv,num); | |
1297 | SvSETMAGIC(sv); | |
1298 | } | |
1299 | ||
76e3520e | 1300 | STATIC void |
cea2e8a9 | 1301 | S_not_a_number(pTHX_ SV *sv) |
a0d0e21e | 1302 | { |
11343788 | 1303 | dTHR; |
a0d0e21e LW |
1304 | char tmpbuf[64]; |
1305 | char *d = tmpbuf; | |
1306 | char *s; | |
dc28f22b GA |
1307 | char *limit = tmpbuf + sizeof(tmpbuf) - 8; |
1308 | /* each *s can expand to 4 chars + "...\0", | |
1309 | i.e. need room for 8 chars */ | |
a0d0e21e | 1310 | |
dc28f22b | 1311 | for (s = SvPVX(sv); *s && d < limit; s++) { |
bbce6d69 | 1312 | int ch = *s & 0xFF; |
1313 | if (ch & 128 && !isPRINT_LC(ch)) { | |
a0d0e21e LW |
1314 | *d++ = 'M'; |
1315 | *d++ = '-'; | |
1316 | ch &= 127; | |
1317 | } | |
bbce6d69 | 1318 | if (ch == '\n') { |
1319 | *d++ = '\\'; | |
1320 | *d++ = 'n'; | |
1321 | } | |
1322 | else if (ch == '\r') { | |
1323 | *d++ = '\\'; | |
1324 | *d++ = 'r'; | |
1325 | } | |
1326 | else if (ch == '\f') { | |
1327 | *d++ = '\\'; | |
1328 | *d++ = 'f'; | |
1329 | } | |
1330 | else if (ch == '\\') { | |
1331 | *d++ = '\\'; | |
1332 | *d++ = '\\'; | |
1333 | } | |
1334 | else if (isPRINT_LC(ch)) | |
a0d0e21e LW |
1335 | *d++ = ch; |
1336 | else { | |
1337 | *d++ = '^'; | |
bbce6d69 | 1338 | *d++ = toCTRL(ch); |
a0d0e21e LW |
1339 | } |
1340 | } | |
1341 | if (*s) { | |
1342 | *d++ = '.'; | |
1343 | *d++ = '.'; | |
1344 | *d++ = '.'; | |
1345 | } | |
1346 | *d = '\0'; | |
1347 | ||
533c011a | 1348 | if (PL_op) |
42d38218 MS |
1349 | Perl_warner(aTHX_ WARN_NUMERIC, |
1350 | "Argument \"%s\" isn't numeric in %s", tmpbuf, | |
1351 | PL_op_desc[PL_op->op_type]); | |
a0d0e21e | 1352 | else |
42d38218 MS |
1353 | Perl_warner(aTHX_ WARN_NUMERIC, |
1354 | "Argument \"%s\" isn't numeric", tmpbuf); | |
a0d0e21e LW |
1355 | } |
1356 | ||
cf2093f6 | 1357 | /* the number can be converted to integer with atol() or atoll() */ |
25da4f38 IZ |
1358 | #define IS_NUMBER_TO_INT_BY_ATOL 0x01 |
1359 | #define IS_NUMBER_TO_INT_BY_ATOF 0x02 /* atol() may be != atof() */ | |
1360 | #define IS_NUMBER_NOT_IV 0x04 /* (IV)atof() may be != atof() */ | |
1361 | #define IS_NUMBER_NEG 0x08 /* not good to cache UV */ | |
1362 | ||
1363 | /* Actually, ISO C leaves conversion of UV to IV undefined, but | |
1364 | until proven guilty, assume that things are not that bad... */ | |
1365 | ||
a0d0e21e | 1366 | IV |
864dbfa3 | 1367 | Perl_sv_2iv(pTHX_ register SV *sv) |
79072805 LW |
1368 | { |
1369 | if (!sv) | |
1370 | return 0; | |
8990e307 | 1371 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1372 | mg_get(sv); |
1373 | if (SvIOKp(sv)) | |
1374 | return SvIVX(sv); | |
748a9306 | 1375 | if (SvNOKp(sv)) { |
25da4f38 | 1376 | return I_V(SvNVX(sv)); |
748a9306 | 1377 | } |
36477c24 | 1378 | if (SvPOKp(sv) && SvLEN(sv)) |
1379 | return asIV(sv); | |
3fe9a6f1 | 1380 | if (!SvROK(sv)) { |
d008e5eb | 1381 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1382 | dTHR; |
d008e5eb | 1383 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 1384 | report_uninit(); |
c6ee37c5 | 1385 | } |
36477c24 | 1386 | return 0; |
3fe9a6f1 | 1387 | } |
463ee0b2 | 1388 | } |
ed6116ce | 1389 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 1390 | if (SvROK(sv)) { |
a0d0e21e LW |
1391 | SV* tmpstr; |
1392 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) | |
9e7bc3e8 | 1393 | return SvIV(tmpstr); |
56431972 | 1394 | return PTR2IV(SvRV(sv)); |
a0d0e21e | 1395 | } |
0336b60e IZ |
1396 | if (SvREADONLY(sv) && !SvOK(sv)) { |
1397 | dTHR; | |
1398 | if (ckWARN(WARN_UNINITIALIZED)) | |
1d7c1841 | 1399 | report_uninit(); |
ed6116ce LW |
1400 | return 0; |
1401 | } | |
79072805 | 1402 | } |
25da4f38 IZ |
1403 | if (SvIOKp(sv)) { |
1404 | if (SvIsUV(sv)) { | |
1405 | return (IV)(SvUVX(sv)); | |
1406 | } | |
1407 | else { | |
1408 | return SvIVX(sv); | |
1409 | } | |
463ee0b2 | 1410 | } |
748a9306 | 1411 | if (SvNOKp(sv)) { |
25da4f38 IZ |
1412 | /* We can cache the IV/UV value even if it not good enough |
1413 | * to reconstruct NV, since the conversion to PV will prefer | |
cf2093f6 | 1414 | * NV over IV/UV. |
25da4f38 IZ |
1415 | */ |
1416 | ||
1417 | if (SvTYPE(sv) == SVt_NV) | |
1418 | sv_upgrade(sv, SVt_PVNV); | |
1419 | ||
a5f75d66 | 1420 | (void)SvIOK_on(sv); |
65202027 | 1421 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) |
748a9306 | 1422 | SvIVX(sv) = I_V(SvNVX(sv)); |
25da4f38 | 1423 | else { |
ff68c719 | 1424 | SvUVX(sv) = U_V(SvNVX(sv)); |
25da4f38 IZ |
1425 | SvIsUV_on(sv); |
1426 | ret_iv_max: | |
cf2093f6 | 1427 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
57def98f | 1428 | "0x%"UVxf" 2iv(%"UVuf" => %"IVdf") (as unsigned)\n", |
56431972 | 1429 | PTR2UV(sv), |
57def98f JH |
1430 | SvUVX(sv), |
1431 | SvUVX(sv))); | |
25da4f38 IZ |
1432 | return (IV)SvUVX(sv); |
1433 | } | |
748a9306 LW |
1434 | } |
1435 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
25da4f38 IZ |
1436 | I32 numtype = looks_like_number(sv); |
1437 | ||
1438 | /* We want to avoid a possible problem when we cache an IV which | |
1439 | may be later translated to an NV, and the resulting NV is not | |
1440 | the translation of the initial data. | |
1441 | ||
1442 | This means that if we cache such an IV, we need to cache the | |
1443 | NV as well. Moreover, we trade speed for space, and do not | |
1444 | cache the NV if not needed. | |
1445 | */ | |
1446 | if (numtype & IS_NUMBER_NOT_IV) { | |
1447 | /* May be not an integer. Need to cache NV if we cache IV | |
1448 | * - otherwise future conversion to NV will be wrong. */ | |
65202027 | 1449 | NV d; |
25da4f38 | 1450 | |
097ee67d | 1451 | d = Atof(SvPVX(sv)); |
25da4f38 IZ |
1452 | |
1453 | if (SvTYPE(sv) < SVt_PVNV) | |
1454 | sv_upgrade(sv, SVt_PVNV); | |
1455 | SvNVX(sv) = d; | |
1456 | (void)SvNOK_on(sv); | |
1457 | (void)SvIOK_on(sv); | |
65202027 | 1458 | #if defined(USE_LONG_DOUBLE) |
1d7c1841 GS |
1459 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
1460 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 1461 | #else |
1d7c1841 GS |
1462 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%g)\n", |
1463 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 1464 | #endif |
65202027 | 1465 | if (SvNVX(sv) < (NV)IV_MAX + 0.5) |
25da4f38 IZ |
1466 | SvIVX(sv) = I_V(SvNVX(sv)); |
1467 | else { | |
1468 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1469 | SvIsUV_on(sv); | |
1470 | goto ret_iv_max; | |
1471 | } | |
1472 | } | |
1473 | else if (numtype) { | |
1474 | /* The NV may be reconstructed from IV - safe to cache IV, | |
1475 | which may be calculated by atol(). */ | |
1476 | if (SvTYPE(sv) == SVt_PV) | |
1477 | sv_upgrade(sv, SVt_PVIV); | |
1478 | (void)SvIOK_on(sv); | |
cf2093f6 | 1479 | SvIVX(sv) = Atol(SvPVX(sv)); |
25da4f38 IZ |
1480 | } |
1481 | else { /* Not a number. Cache 0. */ | |
1482 | dTHR; | |
1483 | ||
1484 | if (SvTYPE(sv) < SVt_PVIV) | |
1485 | sv_upgrade(sv, SVt_PVIV); | |
1486 | SvIVX(sv) = 0; | |
1487 | (void)SvIOK_on(sv); | |
1488 | if (ckWARN(WARN_NUMERIC)) | |
1489 | not_a_number(sv); | |
1490 | } | |
93a17b20 | 1491 | } |
79072805 | 1492 | else { |
11343788 | 1493 | dTHR; |
599cee73 | 1494 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 1495 | report_uninit(); |
25da4f38 IZ |
1496 | if (SvTYPE(sv) < SVt_IV) |
1497 | /* Typically the caller expects that sv_any is not NULL now. */ | |
1498 | sv_upgrade(sv, SVt_IV); | |
a0d0e21e | 1499 | return 0; |
79072805 | 1500 | } |
1d7c1841 GS |
1501 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2iv(%"IVdf")\n", |
1502 | PTR2UV(sv),SvIVX(sv))); | |
25da4f38 | 1503 | return SvIsUV(sv) ? (IV)SvUVX(sv) : SvIVX(sv); |
79072805 LW |
1504 | } |
1505 | ||
ff68c719 | 1506 | UV |
864dbfa3 | 1507 | Perl_sv_2uv(pTHX_ register SV *sv) |
ff68c719 | 1508 | { |
1509 | if (!sv) | |
1510 | return 0; | |
1511 | if (SvGMAGICAL(sv)) { | |
1512 | mg_get(sv); | |
1513 | if (SvIOKp(sv)) | |
1514 | return SvUVX(sv); | |
1515 | if (SvNOKp(sv)) | |
1516 | return U_V(SvNVX(sv)); | |
36477c24 | 1517 | if (SvPOKp(sv) && SvLEN(sv)) |
1518 | return asUV(sv); | |
3fe9a6f1 | 1519 | if (!SvROK(sv)) { |
d008e5eb | 1520 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1521 | dTHR; |
d008e5eb | 1522 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 1523 | report_uninit(); |
c6ee37c5 | 1524 | } |
36477c24 | 1525 | return 0; |
3fe9a6f1 | 1526 | } |
ff68c719 | 1527 | } |
1528 | if (SvTHINKFIRST(sv)) { | |
1529 | if (SvROK(sv)) { | |
ff68c719 | 1530 | SV* tmpstr; |
1531 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) | |
9e7bc3e8 | 1532 | return SvUV(tmpstr); |
56431972 | 1533 | return PTR2UV(SvRV(sv)); |
ff68c719 | 1534 | } |
0336b60e IZ |
1535 | if (SvREADONLY(sv) && !SvOK(sv)) { |
1536 | dTHR; | |
1537 | if (ckWARN(WARN_UNINITIALIZED)) | |
1d7c1841 | 1538 | report_uninit(); |
ff68c719 | 1539 | return 0; |
1540 | } | |
1541 | } | |
25da4f38 IZ |
1542 | if (SvIOKp(sv)) { |
1543 | if (SvIsUV(sv)) { | |
1544 | return SvUVX(sv); | |
1545 | } | |
1546 | else { | |
1547 | return (UV)SvIVX(sv); | |
1548 | } | |
ff68c719 | 1549 | } |
1550 | if (SvNOKp(sv)) { | |
25da4f38 IZ |
1551 | /* We can cache the IV/UV value even if it not good enough |
1552 | * to reconstruct NV, since the conversion to PV will prefer | |
cf2093f6 | 1553 | * NV over IV/UV. |
25da4f38 IZ |
1554 | */ |
1555 | if (SvTYPE(sv) == SVt_NV) | |
1556 | sv_upgrade(sv, SVt_PVNV); | |
ff68c719 | 1557 | (void)SvIOK_on(sv); |
25da4f38 IZ |
1558 | if (SvNVX(sv) >= -0.5) { |
1559 | SvIsUV_on(sv); | |
1560 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1561 | } | |
1562 | else { | |
1563 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1564 | ret_zero: | |
cf2093f6 | 1565 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
07270b1a | 1566 | "0x%"UVxf" 2uv(%"IVdf" => %"IVdf") (as signed)\n", |
57def98f JH |
1567 | PTR2UV(sv), |
1568 | SvIVX(sv), | |
1569 | (IV)(UV)SvIVX(sv))); | |
25da4f38 IZ |
1570 | return (UV)SvIVX(sv); |
1571 | } | |
ff68c719 | 1572 | } |
1573 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
25da4f38 IZ |
1574 | I32 numtype = looks_like_number(sv); |
1575 | ||
1576 | /* We want to avoid a possible problem when we cache a UV which | |
1577 | may be later translated to an NV, and the resulting NV is not | |
1578 | the translation of the initial data. | |
1579 | ||
1580 | This means that if we cache such a UV, we need to cache the | |
1581 | NV as well. Moreover, we trade speed for space, and do not | |
1582 | cache the NV if not needed. | |
1583 | */ | |
1584 | if (numtype & IS_NUMBER_NOT_IV) { | |
1585 | /* May be not an integer. Need to cache NV if we cache IV | |
1586 | * - otherwise future conversion to NV will be wrong. */ | |
65202027 | 1587 | NV d; |
25da4f38 | 1588 | |
cf2093f6 | 1589 | d = Atof(SvPVX(sv)); |
25da4f38 IZ |
1590 | |
1591 | if (SvTYPE(sv) < SVt_PVNV) | |
1592 | sv_upgrade(sv, SVt_PVNV); | |
1593 | SvNVX(sv) = d; | |
1594 | (void)SvNOK_on(sv); | |
1595 | (void)SvIOK_on(sv); | |
65202027 | 1596 | #if defined(USE_LONG_DOUBLE) |
1d7c1841 GS |
1597 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
1598 | "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", | |
1599 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 1600 | #else |
1d7c1841 GS |
1601 | DEBUG_c(PerlIO_printf(Perl_debug_log, |
1602 | "0x%"UVxf" 2nv(%g)\n", | |
1603 | PTR2UV(sv), SvNVX(sv))); | |
65202027 | 1604 | #endif |
25da4f38 IZ |
1605 | if (SvNVX(sv) < -0.5) { |
1606 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1607 | goto ret_zero; | |
1608 | } else { | |
1609 | SvUVX(sv) = U_V(SvNVX(sv)); | |
1610 | SvIsUV_on(sv); | |
1611 | } | |
1612 | } | |
1613 | else if (numtype & IS_NUMBER_NEG) { | |
1614 | /* The NV may be reconstructed from IV - safe to cache IV, | |
1615 | which may be calculated by atol(). */ | |
1616 | if (SvTYPE(sv) == SVt_PV) | |
1617 | sv_upgrade(sv, SVt_PVIV); | |
1618 | (void)SvIOK_on(sv); | |
cf2093f6 | 1619 | SvIVX(sv) = (IV)Atol(SvPVX(sv)); |
25da4f38 IZ |
1620 | } |
1621 | else if (numtype) { /* Non-negative */ | |
1622 | /* The NV may be reconstructed from UV - safe to cache UV, | |
1623 | which may be calculated by strtoul()/atol. */ | |
1624 | if (SvTYPE(sv) == SVt_PV) | |
1625 | sv_upgrade(sv, SVt_PVIV); | |
1626 | (void)SvIOK_on(sv); | |
1627 | (void)SvIsUV_on(sv); | |
1628 | #ifdef HAS_STRTOUL | |
cf2093f6 | 1629 | SvUVX(sv) = Strtoul(SvPVX(sv), Null(char**), 10); |
25da4f38 IZ |
1630 | #else /* no atou(), but we know the number fits into IV... */ |
1631 | /* The only problem may be if it is negative... */ | |
cf2093f6 | 1632 | SvUVX(sv) = (UV)Atol(SvPVX(sv)); |
25da4f38 IZ |
1633 | #endif |
1634 | } | |
1635 | else { /* Not a number. Cache 0. */ | |
1636 | dTHR; | |
1637 | ||
1638 | if (SvTYPE(sv) < SVt_PVIV) | |
1639 | sv_upgrade(sv, SVt_PVIV); | |
1640 | SvUVX(sv) = 0; /* We assume that 0s have the | |
1641 | same bitmap in IV and UV. */ | |
1642 | (void)SvIOK_on(sv); | |
1643 | (void)SvIsUV_on(sv); | |
1644 | if (ckWARN(WARN_NUMERIC)) | |
1645 | not_a_number(sv); | |
1646 | } | |
ff68c719 | 1647 | } |
1648 | else { | |
d008e5eb | 1649 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1650 | dTHR; |
d008e5eb | 1651 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 1652 | report_uninit(); |
c6ee37c5 | 1653 | } |
25da4f38 IZ |
1654 | if (SvTYPE(sv) < SVt_IV) |
1655 | /* Typically the caller expects that sv_any is not NULL now. */ | |
1656 | sv_upgrade(sv, SVt_IV); | |
ff68c719 | 1657 | return 0; |
1658 | } | |
25da4f38 | 1659 | |
1d7c1841 GS |
1660 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2uv(%"UVuf")\n", |
1661 | PTR2UV(sv),SvUVX(sv))); | |
25da4f38 | 1662 | return SvIsUV(sv) ? SvUVX(sv) : (UV)SvIVX(sv); |
ff68c719 | 1663 | } |
1664 | ||
65202027 | 1665 | NV |
864dbfa3 | 1666 | Perl_sv_2nv(pTHX_ register SV *sv) |
79072805 LW |
1667 | { |
1668 | if (!sv) | |
1669 | return 0.0; | |
8990e307 | 1670 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1671 | mg_get(sv); |
1672 | if (SvNOKp(sv)) | |
1673 | return SvNVX(sv); | |
a0d0e21e | 1674 | if (SvPOKp(sv) && SvLEN(sv)) { |
d008e5eb | 1675 | dTHR; |
599cee73 | 1676 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1677 | not_a_number(sv); |
097ee67d | 1678 | return Atof(SvPVX(sv)); |
a0d0e21e | 1679 | } |
25da4f38 IZ |
1680 | if (SvIOKp(sv)) { |
1681 | if (SvIsUV(sv)) | |
65202027 | 1682 | return (NV)SvUVX(sv); |
25da4f38 | 1683 | else |
65202027 | 1684 | return (NV)SvIVX(sv); |
25da4f38 | 1685 | } |
16d20bd9 | 1686 | if (!SvROK(sv)) { |
d008e5eb | 1687 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1688 | dTHR; |
d008e5eb | 1689 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 1690 | report_uninit(); |
c6ee37c5 | 1691 | } |
16d20bd9 AD |
1692 | return 0; |
1693 | } | |
463ee0b2 | 1694 | } |
ed6116ce | 1695 | if (SvTHINKFIRST(sv)) { |
a0d0e21e | 1696 | if (SvROK(sv)) { |
a0d0e21e LW |
1697 | SV* tmpstr; |
1698 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) | |
9e7bc3e8 | 1699 | return SvNV(tmpstr); |
56431972 | 1700 | return PTR2NV(SvRV(sv)); |
a0d0e21e | 1701 | } |
0336b60e | 1702 | if (SvREADONLY(sv) && !SvOK(sv)) { |
d008e5eb | 1703 | dTHR; |
599cee73 | 1704 | if (ckWARN(WARN_UNINITIALIZED)) |
1d7c1841 | 1705 | report_uninit(); |
ed6116ce LW |
1706 | return 0.0; |
1707 | } | |
79072805 LW |
1708 | } |
1709 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
1710 | if (SvTYPE(sv) == SVt_IV) |
1711 | sv_upgrade(sv, SVt_PVNV); | |
1712 | else | |
1713 | sv_upgrade(sv, SVt_NV); | |
572bbb43 | 1714 | #if defined(USE_LONG_DOUBLE) |
097ee67d JH |
1715 | DEBUG_c({ |
1716 | RESTORE_NUMERIC_STANDARD(); | |
1d7c1841 GS |
1717 | PerlIO_printf(Perl_debug_log, |
1718 | "0x%"UVxf" num(%" PERL_PRIgldbl ")\n", | |
1719 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
1720 | RESTORE_NUMERIC_LOCAL(); |
1721 | }); | |
65202027 | 1722 | #else |
572bbb43 GS |
1723 | DEBUG_c({ |
1724 | RESTORE_NUMERIC_STANDARD(); | |
1d7c1841 GS |
1725 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" num(%g)\n", |
1726 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
1727 | RESTORE_NUMERIC_LOCAL(); |
1728 | }); | |
572bbb43 | 1729 | #endif |
79072805 LW |
1730 | } |
1731 | else if (SvTYPE(sv) < SVt_PVNV) | |
1732 | sv_upgrade(sv, SVt_PVNV); | |
748a9306 LW |
1733 | if (SvIOKp(sv) && |
1734 | (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) | |
93a17b20 | 1735 | { |
65202027 | 1736 | SvNVX(sv) = SvIsUV(sv) ? (NV)SvUVX(sv) : (NV)SvIVX(sv); |
93a17b20 | 1737 | } |
748a9306 | 1738 | else if (SvPOKp(sv) && SvLEN(sv)) { |
d008e5eb | 1739 | dTHR; |
599cee73 | 1740 | if (ckWARN(WARN_NUMERIC) && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1741 | not_a_number(sv); |
097ee67d | 1742 | SvNVX(sv) = Atof(SvPVX(sv)); |
93a17b20 | 1743 | } |
79072805 | 1744 | else { |
11343788 | 1745 | dTHR; |
599cee73 | 1746 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
1d7c1841 | 1747 | report_uninit(); |
25da4f38 IZ |
1748 | if (SvTYPE(sv) < SVt_NV) |
1749 | /* Typically the caller expects that sv_any is not NULL now. */ | |
1750 | sv_upgrade(sv, SVt_NV); | |
a0d0e21e | 1751 | return 0.0; |
79072805 LW |
1752 | } |
1753 | SvNOK_on(sv); | |
572bbb43 | 1754 | #if defined(USE_LONG_DOUBLE) |
097ee67d JH |
1755 | DEBUG_c({ |
1756 | RESTORE_NUMERIC_STANDARD(); | |
1d7c1841 GS |
1757 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2nv(%" PERL_PRIgldbl ")\n", |
1758 | PTR2UV(sv), SvNVX(sv)); | |
572bbb43 GS |
1759 | RESTORE_NUMERIC_LOCAL(); |
1760 | }); | |
65202027 | 1761 | #else |
572bbb43 GS |
1762 | DEBUG_c({ |
1763 | RESTORE_NUMERIC_STANDARD(); | |
1d7c1841 GS |
1764 | PerlIO_printf(Perl_debug_log, "0x%"UVxf" 1nv(%g)\n", |
1765 | PTR2UV(sv), SvNVX(sv)); | |
097ee67d JH |
1766 | RESTORE_NUMERIC_LOCAL(); |
1767 | }); | |
572bbb43 | 1768 | #endif |
463ee0b2 | 1769 | return SvNVX(sv); |
79072805 LW |
1770 | } |
1771 | ||
76e3520e | 1772 | STATIC IV |
cea2e8a9 | 1773 | S_asIV(pTHX_ SV *sv) |
36477c24 | 1774 | { |
1775 | I32 numtype = looks_like_number(sv); | |
65202027 | 1776 | NV d; |
36477c24 | 1777 | |
25da4f38 | 1778 | if (numtype & IS_NUMBER_TO_INT_BY_ATOL) |
cf2093f6 | 1779 | return Atol(SvPVX(sv)); |
d008e5eb GS |
1780 | if (!numtype) { |
1781 | dTHR; | |
1782 | if (ckWARN(WARN_NUMERIC)) | |
1783 | not_a_number(sv); | |
1784 | } | |
097ee67d | 1785 | d = Atof(SvPVX(sv)); |
25da4f38 | 1786 | return I_V(d); |
36477c24 | 1787 | } |
1788 | ||
76e3520e | 1789 | STATIC UV |
cea2e8a9 | 1790 | S_asUV(pTHX_ SV *sv) |
36477c24 | 1791 | { |
1792 | I32 numtype = looks_like_number(sv); | |
1793 | ||
84902520 | 1794 | #ifdef HAS_STRTOUL |
25da4f38 | 1795 | if (numtype & IS_NUMBER_TO_INT_BY_ATOL) |
cf2093f6 | 1796 | return Strtoul(SvPVX(sv), Null(char**), 10); |
84902520 | 1797 | #endif |
d008e5eb GS |
1798 | if (!numtype) { |
1799 | dTHR; | |
1800 | if (ckWARN(WARN_NUMERIC)) | |
1801 | not_a_number(sv); | |
1802 | } | |
097ee67d | 1803 | return U_V(Atof(SvPVX(sv))); |
36477c24 | 1804 | } |
1805 | ||
25da4f38 IZ |
1806 | /* |
1807 | * Returns a combination of (advisory only - can get false negatives) | |
1808 | * IS_NUMBER_TO_INT_BY_ATOL, IS_NUMBER_TO_INT_BY_ATOF, IS_NUMBER_NOT_IV, | |
1809 | * IS_NUMBER_NEG | |
1810 | * 0 if does not look like number. | |
1811 | * | |
1812 | * In fact possible values are 0 and | |
1813 | * IS_NUMBER_TO_INT_BY_ATOL 123 | |
1814 | * IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV 123.1 | |
1815 | * IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV 123e0 | |
1816 | * with a possible addition of IS_NUMBER_NEG. | |
1817 | */ | |
1818 | ||
954c1994 GS |
1819 | /* |
1820 | =for apidoc looks_like_number | |
1821 | ||
1822 | Test if an the content of an SV looks like a number (or is a | |
1823 | number). | |
1824 | ||
1825 | =cut | |
1826 | */ | |
1827 | ||
36477c24 | 1828 | I32 |
864dbfa3 | 1829 | Perl_looks_like_number(pTHX_ SV *sv) |
36477c24 | 1830 | { |
1831 | register char *s; | |
1832 | register char *send; | |
1833 | register char *sbegin; | |
25da4f38 IZ |
1834 | register char *nbegin; |
1835 | I32 numtype = 0; | |
36477c24 | 1836 | STRLEN len; |
1837 | ||
1838 | if (SvPOK(sv)) { | |
1839 | sbegin = SvPVX(sv); | |
1840 | len = SvCUR(sv); | |
1841 | } | |
1842 | else if (SvPOKp(sv)) | |
1843 | sbegin = SvPV(sv, len); | |
1844 | else | |
1845 | return 1; | |
1846 | send = sbegin + len; | |
1847 | ||
1848 | s = sbegin; | |
1849 | while (isSPACE(*s)) | |
1850 | s++; | |
25da4f38 IZ |
1851 | if (*s == '-') { |
1852 | s++; | |
1853 | numtype = IS_NUMBER_NEG; | |
1854 | } | |
1855 | else if (*s == '+') | |
36477c24 | 1856 | s++; |
ff0cee69 | 1857 | |
25da4f38 IZ |
1858 | nbegin = s; |
1859 | /* | |
097ee67d JH |
1860 | * we return IS_NUMBER_TO_INT_BY_ATOL if the number can be converted |
1861 | * to _integer_ with atol() and IS_NUMBER_TO_INT_BY_ATOF if you need | |
1862 | * (int)atof(). | |
25da4f38 IZ |
1863 | */ |
1864 | ||
097ee67d | 1865 | /* next must be digit or the radix separator */ |
ff0cee69 | 1866 | if (isDIGIT(*s)) { |
1867 | do { | |
1868 | s++; | |
1869 | } while (isDIGIT(*s)); | |
25da4f38 IZ |
1870 | |
1871 | if (s - nbegin >= TYPE_DIGITS(IV)) /* Cannot cache ato[ul]() */ | |
1872 | numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV; | |
1873 | else | |
1874 | numtype |= IS_NUMBER_TO_INT_BY_ATOL; | |
1875 | ||
097ee67d JH |
1876 | if (*s == '.' |
1877 | #ifdef USE_LOCALE_NUMERIC | |
1878 | || IS_NUMERIC_RADIX(*s) | |
1879 | #endif | |
1880 | ) { | |
ff0cee69 | 1881 | s++; |
25da4f38 | 1882 | numtype |= IS_NUMBER_NOT_IV; |
097ee67d | 1883 | while (isDIGIT(*s)) /* optional digits after the radix */ |
ff0cee69 | 1884 | s++; |
1885 | } | |
36477c24 | 1886 | } |
097ee67d JH |
1887 | else if (*s == '.' |
1888 | #ifdef USE_LOCALE_NUMERIC | |
1889 | || IS_NUMERIC_RADIX(*s) | |
1890 | #endif | |
1891 | ) { | |
ff0cee69 | 1892 | s++; |
25da4f38 | 1893 | numtype |= IS_NUMBER_TO_INT_BY_ATOL | IS_NUMBER_NOT_IV; |
097ee67d | 1894 | /* no digits before the radix means we need digits after it */ |
ff0cee69 | 1895 | if (isDIGIT(*s)) { |
1896 | do { | |
1897 | s++; | |
1898 | } while (isDIGIT(*s)); | |
1899 | } | |
1900 | else | |
1901 | return 0; | |
1902 | } | |
1903 | else | |
1904 | return 0; | |
1905 | ||
ff0cee69 | 1906 | /* we can have an optional exponent part */ |
36477c24 | 1907 | if (*s == 'e' || *s == 'E') { |
25da4f38 IZ |
1908 | numtype &= ~IS_NUMBER_NEG; |
1909 | numtype |= IS_NUMBER_TO_INT_BY_ATOF | IS_NUMBER_NOT_IV; | |
36477c24 | 1910 | s++; |
1911 | if (*s == '+' || *s == '-') | |
1912 | s++; | |
ff0cee69 | 1913 | if (isDIGIT(*s)) { |
1914 | do { | |
1915 | s++; | |
1916 | } while (isDIGIT(*s)); | |
1917 | } | |
1918 | else | |
1919 | return 0; | |
36477c24 | 1920 | } |
1921 | while (isSPACE(*s)) | |
1922 | s++; | |
1923 | if (s >= send) | |
1924 | return numtype; | |
1925 | if (len == 10 && memEQ(sbegin, "0 but true", 10)) | |
25da4f38 | 1926 | return IS_NUMBER_TO_INT_BY_ATOL; |
36477c24 | 1927 | return 0; |
1928 | } | |
1929 | ||
79072805 | 1930 | char * |
864dbfa3 | 1931 | Perl_sv_2pv_nolen(pTHX_ register SV *sv) |
1fa8b10d JD |
1932 | { |
1933 | STRLEN n_a; | |
1934 | return sv_2pv(sv, &n_a); | |
1935 | } | |
1936 | ||
25da4f38 | 1937 | /* We assume that buf is at least TYPE_CHARS(UV) long. */ |
864dbfa3 | 1938 | static char * |
25da4f38 IZ |
1939 | uiv_2buf(char *buf, IV iv, UV uv, int is_uv, char **peob) |
1940 | { | |
1941 | STRLEN len; | |
1942 | char *ptr = buf + TYPE_CHARS(UV); | |
1943 | char *ebuf = ptr; | |
1944 | int sign; | |
1945 | char *p; | |
1946 | ||
1947 | if (is_uv) | |
1948 | sign = 0; | |
1949 | else if (iv >= 0) { | |
1950 | uv = iv; | |
1951 | sign = 0; | |
1952 | } else { | |
1953 | uv = -iv; | |
1954 | sign = 1; | |
1955 | } | |
1956 | do { | |
1957 | *--ptr = '0' + (uv % 10); | |
1958 | } while (uv /= 10); | |
1959 | if (sign) | |
1960 | *--ptr = '-'; | |
1961 | *peob = ebuf; | |
1962 | return ptr; | |
1963 | } | |
1964 | ||
1fa8b10d | 1965 | char * |
864dbfa3 | 1966 | Perl_sv_2pv(pTHX_ register SV *sv, STRLEN *lp) |
79072805 LW |
1967 | { |
1968 | register char *s; | |
1969 | int olderrno; | |
46fc3d4c | 1970 | SV *tsv; |
25da4f38 IZ |
1971 | char tbuf[64]; /* Must fit sprintf/Gconvert of longest IV/NV */ |
1972 | char *tmpbuf = tbuf; | |
79072805 | 1973 | |
463ee0b2 LW |
1974 | if (!sv) { |
1975 | *lp = 0; | |
1976 | return ""; | |
1977 | } | |
8990e307 | 1978 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1979 | mg_get(sv); |
1980 | if (SvPOKp(sv)) { | |
1981 | *lp = SvCUR(sv); | |
1982 | return SvPVX(sv); | |
1983 | } | |
cf2093f6 | 1984 | if (SvIOKp(sv)) { |
cf2093f6 | 1985 | if (SvIsUV(sv)) |
57def98f | 1986 | (void)sprintf(tmpbuf,"%"UVuf, (UV)SvUVX(sv)); |
cf2093f6 | 1987 | else |
57def98f | 1988 | (void)sprintf(tmpbuf,"%"IVdf, (IV)SvIVX(sv)); |
46fc3d4c | 1989 | tsv = Nullsv; |
a0d0e21e | 1990 | goto tokensave; |
463ee0b2 LW |
1991 | } |
1992 | if (SvNOKp(sv)) { | |
2d4389e4 | 1993 | Gconvert(SvNVX(sv), NV_DIG, 0, tmpbuf); |
46fc3d4c | 1994 | tsv = Nullsv; |
a0d0e21e | 1995 | goto tokensave; |
463ee0b2 | 1996 | } |
16d20bd9 | 1997 | if (!SvROK(sv)) { |
d008e5eb | 1998 | if (!(SvFLAGS(sv) & SVs_PADTMP)) { |
c6ee37c5 | 1999 | dTHR; |
d008e5eb | 2000 | if (ckWARN(WARN_UNINITIALIZED) && !PL_localizing) |
1d7c1841 | 2001 | report_uninit(); |
c6ee37c5 | 2002 | } |
16d20bd9 AD |
2003 | *lp = 0; |
2004 | return ""; | |
2005 | } | |
463ee0b2 | 2006 | } |
ed6116ce LW |
2007 | if (SvTHINKFIRST(sv)) { |
2008 | if (SvROK(sv)) { | |
a0d0e21e LW |
2009 | SV* tmpstr; |
2010 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string))) | |
9e7bc3e8 | 2011 | return SvPV(tmpstr,*lp); |
ed6116ce LW |
2012 | sv = (SV*)SvRV(sv); |
2013 | if (!sv) | |
2014 | s = "NULLREF"; | |
2015 | else { | |
f9277f47 IZ |
2016 | MAGIC *mg; |
2017 | ||
ed6116ce | 2018 | switch (SvTYPE(sv)) { |
f9277f47 IZ |
2019 | case SVt_PVMG: |
2020 | if ( ((SvFLAGS(sv) & | |
2021 | (SVs_OBJECT|SVf_OK|SVs_GMG|SVs_SMG|SVs_RMG)) | |
3149a8e4 | 2022 | == (SVs_OBJECT|SVs_RMG)) |
57668c4d | 2023 | && strEQ(s=HvNAME(SvSTASH(sv)), "Regexp") |
f9277f47 | 2024 | && (mg = mg_find(sv, 'r'))) { |
5c0ca799 | 2025 | dTHR; |
2cd61cdb | 2026 | regexp *re = (regexp *)mg->mg_obj; |
1bd3ad17 | 2027 | |
2cd61cdb | 2028 | if (!mg->mg_ptr) { |
8782bef2 GB |
2029 | char *fptr = "msix"; |
2030 | char reflags[6]; | |
2031 | char ch; | |
2032 | int left = 0; | |
2033 | int right = 4; | |
2034 | U16 reganch = (re->reganch & PMf_COMPILETIME) >> 12; | |
2035 | ||
2036 | while(ch = *fptr++) { | |
2037 | if(reganch & 1) { | |
2038 | reflags[left++] = ch; | |
2039 | } | |
2040 | else { | |
2041 | reflags[right--] = ch; | |
2042 | } | |
2043 | reganch >>= 1; | |
2044 | } | |
2045 | if(left != 4) { | |
2046 | reflags[left] = '-'; | |
2047 | left = 5; | |
2048 | } | |
2049 | ||
2050 | mg->mg_len = re->prelen + 4 + left; | |
2051 | New(616, mg->mg_ptr, mg->mg_len + 1 + left, char); | |
2052 | Copy("(?", mg->mg_ptr, 2, char); | |
2053 | Copy(reflags, mg->mg_ptr+2, left, char); | |
2054 | Copy(":", mg->mg_ptr+left+2, 1, char); | |
2055 | Copy(re->precomp, mg->mg_ptr+3+left, re->prelen, char); | |
1bd3ad17 IZ |
2056 | mg->mg_ptr[mg->mg_len - 1] = ')'; |
2057 | mg->mg_ptr[mg->mg_len] = 0; | |
2058 | } | |
3280af22 | 2059 | PL_reginterp_cnt += re->program[0].next_off; |
1bd3ad17 IZ |
2060 | *lp = mg->mg_len; |
2061 | return mg->mg_ptr; | |
f9277f47 IZ |
2062 | } |
2063 | /* Fall through */ | |
ed6116ce LW |
2064 | case SVt_NULL: |
2065 | case SVt_IV: | |
2066 | case SVt_NV: | |
2067 | case SVt_RV: | |
2068 | case SVt_PV: | |
2069 | case SVt_PVIV: | |
2070 | case SVt_PVNV: | |
f9277f47 | 2071 | case SVt_PVBM: s = "SCALAR"; break; |
ed6116ce LW |
2072 | case SVt_PVLV: s = "LVALUE"; break; |
2073 | case SVt_PVAV: s = "ARRAY"; break; | |
2074 | case SVt_PVHV: s = "HASH"; break; | |
2075 | case SVt_PVCV: s = "CODE"; break; | |
2076 | case SVt_PVGV: s = "GLOB"; break; | |
1d2dff63 | 2077 | case SVt_PVFM: s = "FORMAT"; break; |
36477c24 | 2078 | case SVt_PVIO: s = "IO"; break; |
ed6116ce LW |
2079 | default: s = "UNKNOWN"; break; |
2080 | } | |
46fc3d4c | 2081 | tsv = NEWSV(0,0); |
ed6116ce | 2082 | if (SvOBJECT(sv)) |
cea2e8a9 | 2083 | Perl_sv_setpvf(aTHX_ tsv, "%s=%s", HvNAME(SvSTASH(sv)), s); |
ed6116ce | 2084 | else |
46fc3d4c | 2085 | sv_setpv(tsv, s); |
57def98f | 2086 | Perl_sv_catpvf(aTHX_ tsv, "(0x%"UVxf")", PTR2UV(sv)); |
a0d0e21e | 2087 | goto tokensaveref; |
463ee0b2 | 2088 | } |
ed6116ce LW |
2089 | *lp = strlen(s); |
2090 | return s; | |
79072805 | 2091 | } |
0336b60e IZ |
2092 | if (SvREADONLY(sv) && !SvOK(sv)) { |
2093 | dTHR; | |
2094 | if (ckWARN(WARN_UNINITIALIZED)) | |
1d7c1841 | 2095 | report_uninit(); |
ed6116ce LW |
2096 | *lp = 0; |
2097 | return ""; | |
79072805 | 2098 | } |
79072805 | 2099 | } |
25da4f38 IZ |
2100 | if (SvNOKp(sv)) { /* See note in sv_2uv() */ |
2101 | /* XXXX 64-bit? IV may have better precision... */ | |
34d861e4 JH |
2102 | /* I tried changing this for to be 64-bit-aware and |
2103 | * the t/op/numconvert.t became very, very, angry. | |
2104 | * --jhi Sep 1999 */ | |
79072805 LW |
2105 | if (SvTYPE(sv) < SVt_PVNV) |
2106 | sv_upgrade(sv, SVt_PVNV); | |
2107 | SvGROW(sv, 28); | |
463ee0b2 | 2108 | s = SvPVX(sv); |
79072805 | 2109 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 2110 | #ifdef apollo |
463ee0b2 | 2111 | if (SvNVX(sv) == 0.0) |
79072805 LW |
2112 | (void)strcpy(s,"0"); |
2113 | else | |
2114 | #endif /*apollo*/ | |
bbce6d69 | 2115 | { |
2d4389e4 | 2116 | Gconvert(SvNVX(sv), NV_DIG, 0, s); |
bbce6d69 | 2117 | } |
79072805 | 2118 | errno = olderrno; |
a0d0e21e LW |
2119 | #ifdef FIXNEGATIVEZERO |
2120 | if (*s == '-' && s[1] == '0' && !s[2]) | |
2121 | strcpy(s,"0"); | |
2122 | #endif | |
79072805 LW |
2123 | while (*s) s++; |
2124 | #ifdef hcx | |
2125 | if (s[-1] == '.') | |
46fc3d4c | 2126 | *--s = '\0'; |
79072805 LW |
2127 | #endif |
2128 | } | |
748a9306 | 2129 | else if (SvIOKp(sv)) { |
25da4f38 | 2130 | U32 isIOK = SvIOK(sv); |
0336b60e | 2131 | U32 isUIOK = SvIsUV(sv); |
25da4f38 IZ |
2132 | char buf[TYPE_CHARS(UV)]; |
2133 | char *ebuf, *ptr; | |
2134 | ||
79072805 LW |
2135 | if (SvTYPE(sv) < SVt_PVIV) |
2136 | sv_upgrade(sv, SVt_PVIV); | |
0336b60e | 2137 | if (isUIOK) |
25da4f38 | 2138 | ptr = uiv_2buf(buf, 0, SvUVX(sv), 1, &ebuf); |
0336b60e | 2139 | else |
25da4f38 | 2140 | ptr = uiv_2buf(buf, SvIVX(sv), 0, 0, &ebuf); |
0336b60e IZ |
2141 | SvGROW(sv, ebuf - ptr + 1); /* inlined from sv_setpvn */ |
2142 | Move(ptr,SvPVX(sv),ebuf - ptr,char); | |
2143 | SvCUR_set(sv, ebuf - ptr); | |
46fc3d4c | 2144 | s = SvEND(sv); |
0336b60e | 2145 | *s = '\0'; |
25da4f38 | 2146 | if (isIOK) |
64f14228 GA |
2147 | SvIOK_on(sv); |
2148 | else | |
2149 | SvIOKp_on(sv); | |
0336b60e IZ |
2150 | if (isUIOK) |
2151 | SvIsUV_on(sv); | |
2152 | SvPOK_on(sv); | |
79072805 LW |
2153 | } |
2154 | else { | |
11343788 | 2155 | dTHR; |
0336b60e IZ |
2156 | if (ckWARN(WARN_UNINITIALIZED) |
2157 | && !PL_localizing && !(SvFLAGS(sv) & SVs_PADTMP)) | |
2158 | { | |
1d7c1841 | 2159 | report_uninit(); |
0336b60e | 2160 | } |
a0d0e21e | 2161 | *lp = 0; |
25da4f38 IZ |
2162 | if (SvTYPE(sv) < SVt_PV) |
2163 | /* Typically the caller expects that sv_any is not NULL now. */ | |
2164 | sv_upgrade(sv, SVt_PV); | |
a0d0e21e | 2165 | return ""; |
79072805 | 2166 | } |
463ee0b2 LW |
2167 | *lp = s - SvPVX(sv); |
2168 | SvCUR_set(sv, *lp); | |
79072805 | 2169 | SvPOK_on(sv); |
1d7c1841 GS |
2170 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
2171 | PTR2UV(sv),SvPVX(sv))); | |
463ee0b2 | 2172 | return SvPVX(sv); |
a0d0e21e LW |
2173 | |
2174 | tokensave: | |
2175 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
2176 | /* Sneaky stuff here */ | |
2177 | ||
2178 | tokensaveref: | |
46fc3d4c | 2179 | if (!tsv) |
96827780 | 2180 | tsv = newSVpv(tmpbuf, 0); |
46fc3d4c | 2181 | sv_2mortal(tsv); |
2182 | *lp = SvCUR(tsv); | |
2183 | return SvPVX(tsv); | |
a0d0e21e LW |
2184 | } |
2185 | else { | |
2186 | STRLEN len; | |
46fc3d4c | 2187 | char *t; |
2188 | ||
2189 | if (tsv) { | |
2190 | sv_2mortal(tsv); | |
2191 | t = SvPVX(tsv); | |
2192 | len = SvCUR(tsv); | |
2193 | } | |
2194 | else { | |
96827780 MB |
2195 | t = tmpbuf; |
2196 | len = strlen(tmpbuf); | |
46fc3d4c | 2197 | } |
a0d0e21e | 2198 | #ifdef FIXNEGATIVEZERO |
46fc3d4c | 2199 | if (len == 2 && t[0] == '-' && t[1] == '0') { |
2200 | t = "0"; | |
2201 | len = 1; | |
2202 | } | |
a0d0e21e LW |
2203 | #endif |
2204 | (void)SvUPGRADE(sv, SVt_PV); | |
46fc3d4c | 2205 | *lp = len; |
a0d0e21e LW |
2206 | s = SvGROW(sv, len + 1); |
2207 | SvCUR_set(sv, len); | |
46fc3d4c | 2208 | (void)strcpy(s, t); |
6bf554b4 | 2209 | SvPOKp_on(sv); |
a0d0e21e LW |
2210 | return s; |
2211 | } | |
463ee0b2 LW |
2212 | } |
2213 | ||
7340a771 GS |
2214 | char * |
2215 | Perl_sv_2pvbyte_nolen(pTHX_ register SV *sv) | |
2216 | { | |
560a288e GS |
2217 | STRLEN n_a; |
2218 | return sv_2pvbyte(sv, &n_a); | |
7340a771 GS |
2219 | } |
2220 | ||
2221 | char * | |
2222 | Perl_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp) | |
2223 | { | |
2224 | return sv_2pv(sv,lp); | |
2225 | } | |
2226 | ||
2227 | char * | |
2228 | Perl_sv_2pvutf8_nolen(pTHX_ register SV *sv) | |
2229 | { | |
560a288e GS |
2230 | STRLEN n_a; |
2231 | return sv_2pvutf8(sv, &n_a); | |
7340a771 GS |
2232 | } |
2233 | ||
2234 | char * | |
2235 | Perl_sv_2pvutf8(pTHX_ register SV *sv, STRLEN *lp) | |
2236 | { | |
560a288e | 2237 | sv_utf8_upgrade(sv); |
7340a771 GS |
2238 | return sv_2pv(sv,lp); |
2239 | } | |
2240 | ||
463ee0b2 LW |
2241 | /* This function is only called on magical items */ |
2242 | bool | |
864dbfa3 | 2243 | Perl_sv_2bool(pTHX_ register SV *sv) |
463ee0b2 | 2244 | { |
8990e307 | 2245 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
2246 | mg_get(sv); |
2247 | ||
a0d0e21e LW |
2248 | if (!SvOK(sv)) |
2249 | return 0; | |
2250 | if (SvROK(sv)) { | |
11343788 | 2251 | dTHR; |
a0d0e21e LW |
2252 | SV* tmpsv; |
2253 | if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) | |
9e7bc3e8 | 2254 | return SvTRUE(tmpsv); |
a0d0e21e LW |
2255 | return SvRV(sv) != 0; |
2256 | } | |
463ee0b2 | 2257 | if (SvPOKp(sv)) { |
11343788 MB |
2258 | register XPV* Xpvtmp; |
2259 | if ((Xpvtmp = (XPV*)SvANY(sv)) && | |
2260 | (*Xpvtmp->xpv_pv > '0' || | |
2261 | Xpvtmp->xpv_cur > 1 || | |
2262 | (Xpvtmp->xpv_cur && *Xpvtmp->xpv_pv != '0'))) | |
463ee0b2 LW |
2263 | return 1; |
2264 | else | |
2265 | return 0; | |
2266 | } | |
2267 | else { | |
2268 | if (SvIOKp(sv)) | |
2269 | return SvIVX(sv) != 0; | |
2270 | else { | |
2271 | if (SvNOKp(sv)) | |
2272 | return SvNVX(sv) != 0.0; | |
2273 | else | |
2274 | return FALSE; | |
2275 | } | |
2276 | } | |
79072805 LW |
2277 | } |
2278 | ||
560a288e GS |
2279 | void |
2280 | Perl_sv_utf8_upgrade(pTHX_ register SV *sv) | |
2281 | { | |
2282 | int hicount; | |
2283 | char *c; | |
2284 | ||
2285 | if (!sv || !SvPOK(sv) || SvUTF8(sv)) | |
2286 | return; | |
2287 | ||
2288 | /* This function could be much more efficient if we had a FLAG | |
2289 | * to signal if there are any hibit chars in the string | |
2290 | */ | |
2291 | hicount = 0; | |
2292 | for (c = SvPVX(sv); c < SvEND(sv); c++) { | |
2293 | if (*c & 0x80) | |
2294 | hicount++; | |
2295 | } | |
2296 | ||
2297 | if (hicount) { | |
2298 | char *src, *dst; | |
2299 | SvGROW(sv, SvCUR(sv) + hicount + 1); | |
2300 | ||
2301 | src = SvEND(sv) - 1; | |
2302 | SvCUR_set(sv, SvCUR(sv) + hicount); | |
2303 | dst = SvEND(sv) - 1; | |
2304 | ||
2305 | while (src < dst) { | |
2306 | if (*src & 0x80) { | |
2307 | dst--; | |
2308 | uv_to_utf8((U8*)dst, (U8)*src--); | |
2309 | dst--; | |
2310 | } | |
2311 | else { | |
2312 | *dst-- = *src--; | |
2313 | } | |
2314 | } | |
2315 | ||
2316 | SvUTF8_on(sv); | |
2317 | } | |
2318 | } | |
2319 | ||
2320 | bool | |
2321 | Perl_sv_utf8_downgrade(pTHX_ register SV* sv, bool fail_ok) | |
2322 | { | |
2323 | if (SvPOK(sv) && SvUTF8(sv)) { | |
2324 | char *c = SvPVX(sv); | |
2325 | char *first_hi = 0; | |
2326 | /* need to figure out if this is possible at all first */ | |
2327 | while (c < SvEND(sv)) { | |
2328 | if (*c & 0x80) { | |
2329 | I32 len; | |
ce32ed4b | 2330 | UV uv = utf8_to_uv((U8*)c, &len); |
560a288e GS |
2331 | if (uv >= 256) { |
2332 | if (fail_ok) | |
2333 | return FALSE; | |
2334 | else { | |
2335 | /* XXX might want to make a callback here instead */ | |
9a54186f | 2336 | Perl_croak(aTHX_ "Big byte"); |
560a288e GS |
2337 | } |
2338 | } | |
2339 | if (!first_hi) | |
2340 | first_hi = c; | |
2341 | c += len; | |
2342 | } | |
2343 | else { | |
2344 | c++; | |
2345 | } | |
2346 | } | |
2347 | ||
2348 | if (first_hi) { | |
2349 | char *src = first_hi; | |
2350 | char *dst = first_hi; | |
2351 | while (src < SvEND(sv)) { | |
2352 | if (*src & 0x80) { | |
2353 | I32 len; | |
ce32ed4b | 2354 | U8 u = (U8)utf8_to_uv((U8*)src, &len); |
560a288e GS |
2355 | *dst++ = u; |
2356 | src += len; | |
2357 | } | |
2358 | else { | |
2359 | *dst++ = *src++; | |
2360 | } | |
2361 | } | |
2362 | SvCUR_set(sv, dst - SvPVX(sv)); | |
2363 | } | |
2364 | SvUTF8_off(sv); | |
2365 | } | |
2366 | return TRUE; | |
2367 | } | |
2368 | ||
2369 | void | |
2370 | Perl_sv_utf8_encode(pTHX_ register SV *sv) | |
2371 | { | |
2372 | sv_utf8_upgrade(sv); | |
2373 | SvUTF8_off(sv); | |
2374 | } | |
2375 | ||
2376 | bool | |
2377 | Perl_sv_utf8_decode(pTHX_ register SV *sv) | |
2378 | { | |
2379 | if (SvPOK(sv)) { | |
2380 | char *c; | |
2381 | bool has_utf = FALSE; | |
2382 | if (!sv_utf8_downgrade(sv, TRUE)) | |
2383 | return FALSE; | |
2384 | ||
2385 | /* it is actually just a matter of turning the utf8 flag on, but | |
2386 | * we want to make sure everything inside is valid utf8 first. | |
2387 | */ | |
2388 | c = SvPVX(sv); | |
2389 | while (c < SvEND(sv)) { | |
2390 | if (*c & 0x80) { | |
2391 | I32 len; | |
2392 | (void)utf8_to_uv((U8*)c, &len); | |
2393 | if (len == 1) { | |
2394 | /* bad utf8 */ | |
2395 | return FALSE; | |
2396 | } | |
2397 | c += len; | |
2398 | has_utf = TRUE; | |
2399 | } | |
2400 | else { | |
2401 | c++; | |
2402 | } | |
2403 | } | |
2404 | ||
2405 | if (has_utf) | |
2406 | SvUTF8_on(sv); | |
2407 | } | |
2408 | return TRUE; | |
2409 | } | |
2410 | ||
2411 | ||
79072805 | 2412 | /* Note: sv_setsv() should not be called with a source string that needs |
463ee0b2 | 2413 | * to be reused, since it may destroy the source string if it is marked |
79072805 LW |
2414 | * as temporary. |
2415 | */ | |
2416 | ||
954c1994 GS |
2417 | /* |
2418 | =for apidoc sv_setsv | |
2419 | ||
2420 | Copies the contents of the source SV C<ssv> into the destination SV C<dsv>. | |
2421 | The source SV may be destroyed if it is mortal. Does not handle 'set' | |
2422 | magic. See the macro forms C<SvSetSV>, C<SvSetSV_nosteal> and | |
2423 | C<sv_setsv_mg>. | |
2424 | ||
2425 | =cut | |
2426 | */ | |
2427 | ||
79072805 | 2428 | void |
864dbfa3 | 2429 | Perl_sv_setsv(pTHX_ SV *dstr, register SV *sstr) |
79072805 | 2430 | { |
11343788 | 2431 | dTHR; |
8990e307 LW |
2432 | register U32 sflags; |
2433 | register int dtype; | |
2434 | register int stype; | |
463ee0b2 | 2435 | |
79072805 LW |
2436 | if (sstr == dstr) |
2437 | return; | |
2213622d | 2438 | SV_CHECK_THINKFIRST(dstr); |
79072805 | 2439 | if (!sstr) |
3280af22 | 2440 | sstr = &PL_sv_undef; |
8990e307 LW |
2441 | stype = SvTYPE(sstr); |
2442 | dtype = SvTYPE(dstr); | |
79072805 | 2443 | |
a0d0e21e | 2444 | SvAMAGIC_off(dstr); |
9e7bc3e8 | 2445 | |
463ee0b2 | 2446 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 2447 | |
8990e307 | 2448 | switch (stype) { |
79072805 | 2449 | case SVt_NULL: |
aece5585 | 2450 | undef_sstr: |
20408e3c GS |
2451 | if (dtype != SVt_PVGV) { |
2452 | (void)SvOK_off(dstr); | |
2453 | return; | |
2454 | } | |
2455 | break; | |
463ee0b2 | 2456 | case SVt_IV: |
aece5585 GA |
2457 | if (SvIOK(sstr)) { |
2458 | switch (dtype) { | |
2459 | case SVt_NULL: | |
8990e307 | 2460 | sv_upgrade(dstr, SVt_IV); |
aece5585 GA |
2461 | break; |
2462 | case SVt_NV: | |
8990e307 | 2463 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
2464 | break; |
2465 | case SVt_RV: | |
2466 | case SVt_PV: | |
a0d0e21e | 2467 | sv_upgrade(dstr, SVt_PVIV); |
aece5585 GA |
2468 | break; |
2469 | } | |
2470 | (void)SvIOK_only(dstr); | |
2471 | SvIVX(dstr) = SvIVX(sstr); | |
25da4f38 IZ |
2472 | if (SvIsUV(sstr)) |
2473 | SvIsUV_on(dstr); | |
aece5585 GA |
2474 | SvTAINT(dstr); |
2475 | return; | |
8990e307 | 2476 | } |
aece5585 GA |
2477 | goto undef_sstr; |
2478 | ||
463ee0b2 | 2479 | case SVt_NV: |
aece5585 GA |
2480 | if (SvNOK(sstr)) { |
2481 | switch (dtype) { | |
2482 | case SVt_NULL: | |
2483 | case SVt_IV: | |
8990e307 | 2484 | sv_upgrade(dstr, SVt_NV); |
aece5585 GA |
2485 | break; |
2486 | case SVt_RV: | |
2487 | case SVt_PV: | |
2488 | case SVt_PVIV: | |
a0d0e21e | 2489 | sv_upgrade(dstr, SVt_PVNV); |
aece5585 GA |
2490 | break; |
2491 | } | |
2492 | SvNVX(dstr) = SvNVX(sstr); | |
2493 | (void)SvNOK_only(dstr); | |
2494 | SvTAINT(dstr); | |
2495 | return; | |
8990e307 | 2496 | } |
aece5585 GA |
2497 | goto undef_sstr; |
2498 | ||
ed6116ce | 2499 | case SVt_RV: |
8990e307 | 2500 | if (dtype < SVt_RV) |
ed6116ce | 2501 | sv_upgrade(dstr, SVt_RV); |
c07a80fd | 2502 | else if (dtype == SVt_PVGV && |
2503 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { | |
2504 | sstr = SvRV(sstr); | |
a5f75d66 | 2505 | if (sstr == dstr) { |
1d7c1841 GS |
2506 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
2507 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
2508 | { | |
a5f75d66 | 2509 | GvIMPORTED_on(dstr); |
1d7c1841 | 2510 | } |
a5f75d66 AD |
2511 | GvMULTI_on(dstr); |
2512 | return; | |
2513 | } | |
c07a80fd | 2514 | goto glob_assign; |
2515 | } | |
ed6116ce | 2516 | break; |
463ee0b2 | 2517 | case SVt_PV: |
fc36a67e | 2518 | case SVt_PVFM: |
8990e307 | 2519 | if (dtype < SVt_PV) |
463ee0b2 | 2520 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
2521 | break; |
2522 | case SVt_PVIV: | |
8990e307 | 2523 | if (dtype < SVt_PVIV) |
463ee0b2 | 2524 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
2525 | break; |
2526 | case SVt_PVNV: | |
8990e307 | 2527 | if (dtype < SVt_PVNV) |
463ee0b2 | 2528 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 2529 | break; |
4633a7c4 LW |
2530 | case SVt_PVAV: |
2531 | case SVt_PVHV: | |
2532 | case SVt_PVCV: | |
4633a7c4 | 2533 | case SVt_PVIO: |
533c011a | 2534 | if (PL_op) |
cea2e8a9 | 2535 | Perl_croak(aTHX_ "Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
22c35a8c | 2536 | PL_op_name[PL_op->op_type]); |
4633a7c4 | 2537 | else |
cea2e8a9 | 2538 | Perl_croak(aTHX_ "Bizarre copy of %s", sv_reftype(sstr, 0)); |
4633a7c4 LW |
2539 | break; |
2540 | ||
79072805 | 2541 | case SVt_PVGV: |
8990e307 | 2542 | if (dtype <= SVt_PVGV) { |
c07a80fd | 2543 | glob_assign: |
a5f75d66 | 2544 | if (dtype != SVt_PVGV) { |
a0d0e21e LW |
2545 | char *name = GvNAME(sstr); |
2546 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 2547 | sv_upgrade(dstr, SVt_PVGV); |
a0d0e21e | 2548 | sv_magic(dstr, dstr, '*', name, len); |
85aff577 | 2549 | GvSTASH(dstr) = (HV*)SvREFCNT_inc(GvSTASH(sstr)); |
a0d0e21e LW |
2550 | GvNAME(dstr) = savepvn(name, len); |
2551 | GvNAMELEN(dstr) = len; | |
2552 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
2553 | } | |
7bac28a0 | 2554 | /* ahem, death to those who redefine active sort subs */ |
3280af22 NIS |
2555 | else if (PL_curstackinfo->si_type == PERLSI_SORT |
2556 | && GvCV(dstr) && PL_sortcop == CvSTART(GvCV(dstr))) | |
cea2e8a9 | 2557 | Perl_croak(aTHX_ "Can't redefine active sort subroutine %s", |
7bac28a0 | 2558 | GvNAME(dstr)); |
a0d0e21e | 2559 | (void)SvOK_off(dstr); |
a5f75d66 | 2560 | GvINTRO_off(dstr); /* one-shot flag */ |
1edc1566 | 2561 | gp_free((GV*)dstr); |
79072805 | 2562 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
8990e307 | 2563 | SvTAINT(dstr); |
1d7c1841 GS |
2564 | if (GvIMPORTED(dstr) != GVf_IMPORTED |
2565 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
2566 | { | |
a5f75d66 | 2567 | GvIMPORTED_on(dstr); |
1d7c1841 | 2568 | } |
a5f75d66 | 2569 | GvMULTI_on(dstr); |
79072805 LW |
2570 | return; |
2571 | } | |
2572 | /* FALL THROUGH */ | |
2573 | ||
2574 | default: | |
973f89ab CS |
2575 | if (SvGMAGICAL(sstr)) { |
2576 | mg_get(sstr); | |
2577 | if (SvTYPE(sstr) != stype) { | |
2578 | stype = SvTYPE(sstr); | |
2579 | if (stype == SVt_PVGV && dtype <= SVt_PVGV) | |
2580 | goto glob_assign; | |
2581 | } | |
2582 | } | |
ded42b9f | 2583 | if (stype == SVt_PVLV) |
6fc92669 | 2584 | (void)SvUPGRADE(dstr, SVt_PVNV); |
ded42b9f | 2585 | else |
6fc92669 | 2586 | (void)SvUPGRADE(dstr, stype); |
79072805 LW |
2587 | } |
2588 | ||
8990e307 LW |
2589 | sflags = SvFLAGS(sstr); |
2590 | ||
2591 | if (sflags & SVf_ROK) { | |
2592 | if (dtype >= SVt_PV) { | |
2593 | if (dtype == SVt_PVGV) { | |
2594 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
2595 | SV *dref = 0; | |
a5f75d66 | 2596 | int intro = GvINTRO(dstr); |
a0d0e21e LW |
2597 | |
2598 | if (intro) { | |
2599 | GP *gp; | |
1d7c1841 | 2600 | gp_free((GV*)dstr); |
a5f75d66 | 2601 | GvINTRO_off(dstr); /* one-shot flag */ |
a0d0e21e | 2602 | Newz(602,gp, 1, GP); |
44a8e56a | 2603 | GvGP(dstr) = gp_ref(gp); |
a0d0e21e | 2604 | GvSV(dstr) = NEWSV(72,0); |
1d7c1841 | 2605 | GvLINE(dstr) = CopLINE(PL_curcop); |
1edc1566 | 2606 | GvEGV(dstr) = (GV*)dstr; |
a0d0e21e | 2607 | } |
a5f75d66 | 2608 | GvMULTI_on(dstr); |
8990e307 LW |
2609 | switch (SvTYPE(sref)) { |
2610 | case SVt_PVAV: | |
a0d0e21e LW |
2611 | if (intro) |
2612 | SAVESPTR(GvAV(dstr)); | |
2613 | else | |
2614 | dref = (SV*)GvAV(dstr); | |
8990e307 | 2615 | GvAV(dstr) = (AV*)sref; |
1d7c1841 GS |
2616 | if (GvIMPORTED_AV_off(dstr) |
2617 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
2618 | { | |
a5f75d66 | 2619 | GvIMPORTED_AV_on(dstr); |
1d7c1841 | 2620 | } |
8990e307 LW |
2621 | break; |
2622 | case SVt_PVHV: | |
a0d0e21e LW |
2623 | if (intro) |
2624 | SAVESPTR(GvHV(dstr)); | |
2625 | else | |
2626 | dref = (SV*)GvHV(dstr); | |
8990e307 | 2627 | GvHV(dstr) = (HV*)sref; |
1d7c1841 GS |
2628 | if (GvIMPORTED_HV_off(dstr) |
2629 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
2630 | { | |
a5f75d66 | 2631 | GvIMPORTED_HV_on(dstr); |
1d7c1841 | 2632 | } |
8990e307 LW |
2633 | break; |
2634 | case SVt_PVCV: | |
8ebc5c01 | 2635 | if (intro) { |
2636 | if (GvCVGEN(dstr) && GvCV(dstr) != (CV*)sref) { | |
2637 | SvREFCNT_dec(GvCV(dstr)); | |
2638 | GvCV(dstr) = Nullcv; | |
68dc0745 | 2639 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
3280af22 | 2640 | PL_sub_generation++; |
8ebc5c01 | 2641 | } |
a0d0e21e | 2642 | SAVESPTR(GvCV(dstr)); |
8ebc5c01 | 2643 | } |
68dc0745 | 2644 | else |
2645 | dref = (SV*)GvCV(dstr); | |
2646 | if (GvCV(dstr) != (CV*)sref) { | |
748a9306 | 2647 | CV* cv = GvCV(dstr); |
4633a7c4 | 2648 | if (cv) { |
68dc0745 | 2649 | if (!GvCVGEN((GV*)dstr) && |
2650 | (CvROOT(cv) || CvXSUB(cv))) | |
2651 | { | |
fe5e78ed GS |
2652 | SV *const_sv = cv_const_sv(cv); |
2653 | bool const_changed = TRUE; | |
2654 | if(const_sv) | |
2655 | const_changed = sv_cmp(const_sv, | |
2656 | op_const_sv(CvSTART((CV*)sref), | |
2657 | Nullcv)); | |
7bac28a0 | 2658 | /* ahem, death to those who redefine |
2659 | * active sort subs */ | |
3280af22 NIS |
2660 | if (PL_curstackinfo->si_type == PERLSI_SORT && |
2661 | PL_sortcop == CvSTART(cv)) | |
cea2e8a9 | 2662 | Perl_croak(aTHX_ |
7bac28a0 | 2663 | "Can't redefine active sort subroutine %s", |
2664 | GvENAME((GV*)dstr)); | |
e476b1b5 GS |
2665 | if ((const_changed || const_sv) && ckWARN(WARN_REDEFINE)) |
2666 | Perl_warner(aTHX_ WARN_REDEFINE, const_sv ? | |
fe5e78ed GS |
2667 | "Constant subroutine %s redefined" |
2668 | : "Subroutine %s redefined", | |
2f34f9d4 | 2669 | GvENAME((GV*)dstr)); |
9607fc9c | 2670 | } |
3fe9a6f1 | 2671 | cv_ckproto(cv, (GV*)dstr, |
2672 | SvPOK(sref) ? SvPVX(sref) : Nullch); | |
4633a7c4 | 2673 | } |
a5f75d66 | 2674 | GvCV(dstr) = (CV*)sref; |
7a4c00b4 | 2675 | GvCVGEN(dstr) = 0; /* Switch off cacheness. */ |
a5f75d66 | 2676 | GvASSUMECV_on(dstr); |
3280af22 | 2677 | PL_sub_generation++; |
a5f75d66 | 2678 | } |
1d7c1841 GS |
2679 | if (GvIMPORTED_CV_off(dstr) |
2680 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
2681 | { | |
a5f75d66 | 2682 | GvIMPORTED_CV_on(dstr); |
1d7c1841 | 2683 | } |
8990e307 | 2684 | break; |
91bba347 LW |
2685 | case SVt_PVIO: |
2686 | if (intro) | |
2687 | SAVESPTR(GvIOp(dstr)); | |
2688 | else | |
2689 | dref = (SV*)GvIOp(dstr); | |
2690 | GvIOp(dstr) = (IO*)sref; | |
2691 | break; | |
8990e307 | 2692 | default: |
a0d0e21e LW |
2693 | if (intro) |
2694 | SAVESPTR(GvSV(dstr)); | |
2695 | else | |
2696 | dref = (SV*)GvSV(dstr); | |
8990e307 | 2697 | GvSV(dstr) = sref; |
1d7c1841 GS |
2698 | if (GvIMPORTED_SV_off(dstr) |
2699 | && CopSTASH_ne(PL_curcop, GvSTASH(dstr))) | |
2700 | { | |
a5f75d66 | 2701 | GvIMPORTED_SV_on(dstr); |
1d7c1841 | 2702 | } |
8990e307 LW |
2703 | break; |
2704 | } | |
2705 | if (dref) | |
2706 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
2707 | if (intro) |
2708 | SAVEFREESV(sref); | |
8990e307 LW |
2709 | SvTAINT(dstr); |
2710 | return; | |
2711 | } | |
a0d0e21e | 2712 | if (SvPVX(dstr)) { |
760ac839 | 2713 | (void)SvOOK_off(dstr); /* backoff */ |
50483b2c JD |
2714 | if (SvLEN(dstr)) |
2715 | Safefree(SvPVX(dstr)); | |
a0d0e21e LW |
2716 | SvLEN(dstr)=SvCUR(dstr)=0; |
2717 | } | |
8990e307 | 2718 | } |
a0d0e21e | 2719 | (void)SvOK_off(dstr); |
8990e307 | 2720 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 2721 | SvROK_on(dstr); |
8990e307 | 2722 | if (sflags & SVp_NOK) { |
ed6116ce LW |
2723 | SvNOK_on(dstr); |
2724 | SvNVX(dstr) = SvNVX(sstr); | |
2725 | } | |
8990e307 | 2726 | if (sflags & SVp_IOK) { |
a0d0e21e | 2727 | (void)SvIOK_on(dstr); |
ed6116ce | 2728 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2729 | if (SvIsUV(sstr)) |
2730 | SvIsUV_on(dstr); | |
ed6116ce | 2731 | } |
a0d0e21e LW |
2732 | if (SvAMAGIC(sstr)) { |
2733 | SvAMAGIC_on(dstr); | |
2734 | } | |
ed6116ce | 2735 | } |
8990e307 | 2736 | else if (sflags & SVp_POK) { |
79072805 LW |
2737 | |
2738 | /* | |
2739 | * Check to see if we can just swipe the string. If so, it's a | |
2740 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
2741 | * It might even be a win on short strings if SvPVX(dstr) |
2742 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
2743 | */ |
2744 | ||
ff68c719 | 2745 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
01b73108 | 2746 | SvREFCNT(sstr) == 1 && /* and no other references to it? */ |
a5f75d66 AD |
2747 | !(sflags & SVf_OOK)) /* and not involved in OOK hack? */ |
2748 | { | |
adbc6bb1 | 2749 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 AD |
2750 | if (SvOOK(dstr)) { |
2751 | SvFLAGS(dstr) &= ~SVf_OOK; | |
2752 | Safefree(SvPVX(dstr) - SvIVX(dstr)); | |
2753 | } | |
50483b2c | 2754 | else if (SvLEN(dstr)) |
a5f75d66 | 2755 | Safefree(SvPVX(dstr)); |
79072805 | 2756 | } |
a5f75d66 | 2757 | (void)SvPOK_only(dstr); |
463ee0b2 | 2758 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
2759 | SvLEN_set(dstr, SvLEN(sstr)); |
2760 | SvCUR_set(dstr, SvCUR(sstr)); | |
f4e86e0f GS |
2761 | if (SvUTF8(sstr)) |
2762 | SvUTF8_on(dstr); | |
2763 | else | |
2764 | SvUTF8_off(dstr); | |
2765 | ||
79072805 | 2766 | SvTEMP_off(dstr); |
a5f75d66 | 2767 | (void)SvOK_off(sstr); |
79072805 LW |
2768 | SvPV_set(sstr, Nullch); |
2769 | SvLEN_set(sstr, 0); | |
a5f75d66 AD |
2770 | SvCUR_set(sstr, 0); |
2771 | SvTEMP_off(sstr); | |
79072805 LW |
2772 | } |
2773 | else { /* have to copy actual string */ | |
8990e307 LW |
2774 | STRLEN len = SvCUR(sstr); |
2775 | ||
2776 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
2777 | Move(SvPVX(sstr),SvPVX(dstr),len,char); | |
2778 | SvCUR_set(dstr, len); | |
2779 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 2780 | (void)SvPOK_only(dstr); |
79072805 | 2781 | } |
7e2040f0 | 2782 | if (DO_UTF8(sstr)) |
a7cb1f99 | 2783 | SvUTF8_on(dstr); |
79072805 | 2784 | /*SUPPRESS 560*/ |
8990e307 | 2785 | if (sflags & SVp_NOK) { |
79072805 | 2786 | SvNOK_on(dstr); |
463ee0b2 | 2787 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 2788 | } |
8990e307 | 2789 | if (sflags & SVp_IOK) { |
a0d0e21e | 2790 | (void)SvIOK_on(dstr); |
463ee0b2 | 2791 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2792 | if (SvIsUV(sstr)) |
2793 | SvIsUV_on(dstr); | |
79072805 LW |
2794 | } |
2795 | } | |
8990e307 | 2796 | else if (sflags & SVp_NOK) { |
463ee0b2 | 2797 | SvNVX(dstr) = SvNVX(sstr); |
a0d0e21e | 2798 | (void)SvNOK_only(dstr); |
79072805 | 2799 | if (SvIOK(sstr)) { |
a0d0e21e | 2800 | (void)SvIOK_on(dstr); |
463ee0b2 | 2801 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2802 | /* XXXX Do we want to set IsUV for IV(ROK)? Be extra safe... */ |
2803 | if (SvIsUV(sstr)) | |
2804 | SvIsUV_on(dstr); | |
79072805 LW |
2805 | } |
2806 | } | |
8990e307 | 2807 | else if (sflags & SVp_IOK) { |
a0d0e21e | 2808 | (void)SvIOK_only(dstr); |
463ee0b2 | 2809 | SvIVX(dstr) = SvIVX(sstr); |
25da4f38 IZ |
2810 | if (SvIsUV(sstr)) |
2811 | SvIsUV_on(dstr); | |
79072805 LW |
2812 | } |
2813 | else { | |
20408e3c | 2814 | if (dtype == SVt_PVGV) { |
e476b1b5 GS |
2815 | if (ckWARN(WARN_MISC)) |
2816 | Perl_warner(aTHX_ WARN_MISC, "Undefined value assigned to typeglob"); | |
20408e3c GS |
2817 | } |
2818 | else | |
2819 | (void)SvOK_off(dstr); | |
a0d0e21e | 2820 | } |
463ee0b2 | 2821 | SvTAINT(dstr); |
79072805 LW |
2822 | } |
2823 | ||
954c1994 GS |
2824 | /* |
2825 | =for apidoc sv_setsv_mg | |
2826 | ||
2827 | Like C<sv_setsv>, but also handles 'set' magic. | |
2828 | ||
2829 | =cut | |
2830 | */ | |
2831 | ||
79072805 | 2832 | void |
864dbfa3 | 2833 | Perl_sv_setsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
2834 | { |
2835 | sv_setsv(dstr,sstr); | |
2836 | SvSETMAGIC(dstr); | |
2837 | } | |
2838 | ||
954c1994 GS |
2839 | /* |
2840 | =for apidoc sv_setpvn | |
2841 | ||
2842 | Copies a string into an SV. The C<len> parameter indicates the number of | |
2843 | bytes to be copied. Does not handle 'set' magic. See C<sv_setpvn_mg>. | |
2844 | ||
2845 | =cut | |
2846 | */ | |
2847 | ||
ef50df4b | 2848 | void |
864dbfa3 | 2849 | Perl_sv_setpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 2850 | { |
c6f8c383 | 2851 | register char *dptr; |
4561caa4 CS |
2852 | assert(len >= 0); /* STRLEN is probably unsigned, so this may |
2853 | elicit a warning, but it won't hurt. */ | |
2213622d | 2854 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 2855 | if (!ptr) { |
a0d0e21e | 2856 | (void)SvOK_off(sv); |
463ee0b2 LW |
2857 | return; |
2858 | } | |
6fc92669 | 2859 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 2860 | |
79072805 | 2861 | SvGROW(sv, len + 1); |
c6f8c383 GA |
2862 | dptr = SvPVX(sv); |
2863 | Move(ptr,dptr,len,char); | |
2864 | dptr[len] = '\0'; | |
79072805 | 2865 | SvCUR_set(sv, len); |
a0d0e21e | 2866 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2867 | SvTAINT(sv); |
79072805 LW |
2868 | } |
2869 | ||
954c1994 GS |
2870 | /* |
2871 | =for apidoc sv_setpvn_mg | |
2872 | ||
2873 | Like C<sv_setpvn>, but also handles 'set' magic. | |
2874 | ||
2875 | =cut | |
2876 | */ | |
2877 | ||
79072805 | 2878 | void |
864dbfa3 | 2879 | Perl_sv_setpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
2880 | { |
2881 | sv_setpvn(sv,ptr,len); | |
2882 | SvSETMAGIC(sv); | |
2883 | } | |
2884 | ||
954c1994 GS |
2885 | /* |
2886 | =for apidoc sv_setpv | |
2887 | ||
2888 | Copies a string into an SV. The string must be null-terminated. Does not | |
2889 | handle 'set' magic. See C<sv_setpv_mg>. | |
2890 | ||
2891 | =cut | |
2892 | */ | |
2893 | ||
ef50df4b | 2894 | void |
864dbfa3 | 2895 | Perl_sv_setpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
2896 | { |
2897 | register STRLEN len; | |
2898 | ||
2213622d | 2899 | SV_CHECK_THINKFIRST(sv); |
463ee0b2 | 2900 | if (!ptr) { |
a0d0e21e | 2901 | (void)SvOK_off(sv); |
463ee0b2 LW |
2902 | return; |
2903 | } | |
79072805 | 2904 | len = strlen(ptr); |
6fc92669 | 2905 | (void)SvUPGRADE(sv, SVt_PV); |
c6f8c383 | 2906 | |
79072805 | 2907 | SvGROW(sv, len + 1); |
463ee0b2 | 2908 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 2909 | SvCUR_set(sv, len); |
a0d0e21e | 2910 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 LW |
2911 | SvTAINT(sv); |
2912 | } | |
2913 | ||
954c1994 GS |
2914 | /* |
2915 | =for apidoc sv_setpv_mg | |
2916 | ||
2917 | Like C<sv_setpv>, but also handles 'set' magic. | |
2918 | ||
2919 | =cut | |
2920 | */ | |
2921 | ||
463ee0b2 | 2922 | void |
864dbfa3 | 2923 | Perl_sv_setpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b GS |
2924 | { |
2925 | sv_setpv(sv,ptr); | |
2926 | SvSETMAGIC(sv); | |
2927 | } | |
2928 | ||
954c1994 GS |
2929 | /* |
2930 | =for apidoc sv_usepvn | |
2931 | ||
2932 | Tells an SV to use C<ptr> to find its string value. Normally the string is | |
2933 | stored inside the SV but sv_usepvn allows the SV to use an outside string. | |
2934 | The C<ptr> should point to memory that was allocated by C<malloc>. The | |
2935 | string length, C<len>, must be supplied. This function will realloc the | |
2936 | memory pointed to by C<ptr>, so that pointer should not be freed or used by | |
2937 | the programmer after giving it to sv_usepvn. Does not handle 'set' magic. | |
2938 | See C<sv_usepvn_mg>. | |
2939 | ||
2940 | =cut | |
2941 | */ | |
2942 | ||
ef50df4b | 2943 | void |
864dbfa3 | 2944 | Perl_sv_usepvn(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
463ee0b2 | 2945 | { |
2213622d | 2946 | SV_CHECK_THINKFIRST(sv); |
c6f8c383 | 2947 | (void)SvUPGRADE(sv, SVt_PV); |
463ee0b2 | 2948 | if (!ptr) { |
a0d0e21e | 2949 | (void)SvOK_off(sv); |
463ee0b2 LW |
2950 | return; |
2951 | } | |
a0ed51b3 | 2952 | (void)SvOOK_off(sv); |
50483b2c | 2953 | if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 LW |
2954 | Safefree(SvPVX(sv)); |
2955 | Renew(ptr, len+1, char); | |
2956 | SvPVX(sv) = ptr; | |
2957 | SvCUR_set(sv, len); | |
2958 | SvLEN_set(sv, len+1); | |
2959 | *SvEND(sv) = '\0'; | |
a0d0e21e | 2960 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 2961 | SvTAINT(sv); |
79072805 LW |
2962 | } |
2963 | ||
954c1994 GS |
2964 | /* |
2965 | =for apidoc sv_usepvn_mg | |
2966 | ||
2967 | Like C<sv_usepvn>, but also handles 'set' magic. | |
2968 | ||
2969 | =cut | |
2970 | */ | |
2971 | ||
ef50df4b | 2972 | void |
864dbfa3 | 2973 | Perl_sv_usepvn_mg(pTHX_ register SV *sv, register char *ptr, register STRLEN len) |
ef50df4b | 2974 | { |
51c1089b | 2975 | sv_usepvn(sv,ptr,len); |
ef50df4b GS |
2976 | SvSETMAGIC(sv); |
2977 | } | |
2978 | ||
6fc92669 | 2979 | void |
864dbfa3 | 2980 | Perl_sv_force_normal(pTHX_ register SV *sv) |
0f15f207 | 2981 | { |
2213622d GA |
2982 | if (SvREADONLY(sv)) { |
2983 | dTHR; | |
3280af22 | 2984 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 2985 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 2986 | } |
2213622d GA |
2987 | if (SvROK(sv)) |
2988 | sv_unref(sv); | |
6fc92669 GS |
2989 | else if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
2990 | sv_unglob(sv); | |
0f15f207 MB |
2991 | } |
2992 | ||
954c1994 GS |
2993 | /* |
2994 | =for apidoc sv_chop | |
2995 | ||
2996 | Efficient removal of characters from the beginning of the string buffer. | |
2997 | SvPOK(sv) must be true and the C<ptr> must be a pointer to somewhere inside | |
2998 | the string buffer. The C<ptr> becomes the first character of the adjusted | |
2999 | string. | |
3000 | ||
3001 | =cut | |
3002 | */ | |
3003 | ||
79072805 | 3004 | void |
864dbfa3 | 3005 | Perl_sv_chop(pTHX_ register SV *sv, register char *ptr) /* like set but assuming ptr is in sv */ |
8ac85365 NIS |
3006 | |
3007 | ||
79072805 LW |
3008 | { |
3009 | register STRLEN delta; | |
3010 | ||
a0d0e21e | 3011 | if (!ptr || !SvPOKp(sv)) |
79072805 | 3012 | return; |
2213622d | 3013 | SV_CHECK_THINKFIRST(sv); |
79072805 LW |
3014 | if (SvTYPE(sv) < SVt_PVIV) |
3015 | sv_upgrade(sv,SVt_PVIV); | |
3016 | ||
3017 | if (!SvOOK(sv)) { | |
50483b2c JD |
3018 | if (!SvLEN(sv)) { /* make copy of shared string */ |
3019 | char *pvx = SvPVX(sv); | |
3020 | STRLEN len = SvCUR(sv); | |
3021 | SvGROW(sv, len + 1); | |
3022 | Move(pvx,SvPVX(sv),len,char); | |
3023 | *SvEND(sv) = '\0'; | |
3024 | } | |
463ee0b2 | 3025 | SvIVX(sv) = 0; |
79072805 LW |
3026 | SvFLAGS(sv) |= SVf_OOK; |
3027 | } | |
25da4f38 | 3028 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK|SVf_IVisUV); |
463ee0b2 | 3029 | delta = ptr - SvPVX(sv); |
79072805 LW |
3030 | SvLEN(sv) -= delta; |
3031 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
3032 | SvPVX(sv) += delta; |
3033 | SvIVX(sv) += delta; | |
79072805 LW |
3034 | } |
3035 | ||
954c1994 GS |
3036 | /* |
3037 | =for apidoc sv_catpvn | |
3038 | ||
3039 | Concatenates the string onto the end of the string which is in the SV. The | |
3040 | C<len> indicates number of bytes to copy. Handles 'get' magic, but not | |
3041 | 'set' magic. See C<sv_catpvn_mg>. | |
3042 | ||
3043 | =cut | |
3044 | */ | |
3045 | ||
79072805 | 3046 | void |
864dbfa3 | 3047 | Perl_sv_catpvn(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
79072805 | 3048 | { |
463ee0b2 | 3049 | STRLEN tlen; |
748a9306 | 3050 | char *junk; |
a0d0e21e | 3051 | |
748a9306 | 3052 | junk = SvPV_force(sv, tlen); |
463ee0b2 | 3053 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
3054 | if (ptr == junk) |
3055 | ptr = SvPVX(sv); | |
463ee0b2 | 3056 | Move(ptr,SvPVX(sv)+tlen,len,char); |
79072805 LW |
3057 | SvCUR(sv) += len; |
3058 | *SvEND(sv) = '\0'; | |
d41ff1b8 | 3059 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 3060 | SvTAINT(sv); |
79072805 LW |
3061 | } |
3062 | ||
954c1994 GS |
3063 | /* |
3064 | =for apidoc sv_catpvn_mg | |
3065 | ||
3066 | Like C<sv_catpvn>, but also handles 'set' magic. | |
3067 | ||
3068 | =cut | |
3069 | */ | |
3070 | ||
79072805 | 3071 | void |
864dbfa3 | 3072 | Perl_sv_catpvn_mg(pTHX_ register SV *sv, register const char *ptr, register STRLEN len) |
ef50df4b GS |
3073 | { |
3074 | sv_catpvn(sv,ptr,len); | |
3075 | SvSETMAGIC(sv); | |
3076 | } | |
3077 | ||
954c1994 GS |
3078 | /* |
3079 | =for apidoc sv_catsv | |
3080 | ||
3081 | Concatenates the string from SV C<ssv> onto the end of the string in SV | |
3082 | C<dsv>. Handles 'get' magic, but not 'set' magic. See C<sv_catsv_mg>. | |
3083 | ||
3084 | =cut | |
3085 | */ | |
3086 | ||
ef50df4b | 3087 | void |
864dbfa3 | 3088 | Perl_sv_catsv(pTHX_ SV *dstr, register SV *sstr) |
79072805 LW |
3089 | { |
3090 | char *s; | |
463ee0b2 | 3091 | STRLEN len; |
79072805 LW |
3092 | if (!sstr) |
3093 | return; | |
560a288e GS |
3094 | if (s = SvPV(sstr, len)) { |
3095 | if (SvUTF8(sstr)) | |
3096 | sv_utf8_upgrade(dstr); | |
463ee0b2 | 3097 | sv_catpvn(dstr,s,len); |
560a288e GS |
3098 | if (SvUTF8(sstr)) |
3099 | SvUTF8_on(dstr); | |
3100 | } | |
79072805 LW |
3101 | } |
3102 | ||
954c1994 GS |
3103 | /* |
3104 | =for apidoc sv_catsv_mg | |
3105 | ||
3106 | Like C<sv_catsv>, but also handles 'set' magic. | |
3107 | ||
3108 | =cut | |
3109 | */ | |
3110 | ||
79072805 | 3111 | void |
864dbfa3 | 3112 | Perl_sv_catsv_mg(pTHX_ SV *dstr, register SV *sstr) |
ef50df4b GS |
3113 | { |
3114 | sv_catsv(dstr,sstr); | |
3115 | SvSETMAGIC(dstr); | |
3116 | } | |
3117 | ||
954c1994 GS |
3118 | /* |
3119 | =for apidoc sv_catpv | |
3120 | ||
3121 | Concatenates the string onto the end of the string which is in the SV. | |
3122 | Handles 'get' magic, but not 'set' magic. See C<sv_catpv_mg>. | |
3123 | ||
3124 | =cut | |
3125 | */ | |
3126 | ||
ef50df4b | 3127 | void |
864dbfa3 | 3128 | Perl_sv_catpv(pTHX_ register SV *sv, register const char *ptr) |
79072805 LW |
3129 | { |
3130 | register STRLEN len; | |
463ee0b2 | 3131 | STRLEN tlen; |
748a9306 | 3132 | char *junk; |
79072805 | 3133 | |
79072805 LW |
3134 | if (!ptr) |
3135 | return; | |
748a9306 | 3136 | junk = SvPV_force(sv, tlen); |
79072805 | 3137 | len = strlen(ptr); |
463ee0b2 | 3138 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
3139 | if (ptr == junk) |
3140 | ptr = SvPVX(sv); | |
463ee0b2 | 3141 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
79072805 | 3142 | SvCUR(sv) += len; |
d41ff1b8 | 3143 | (void)SvPOK_only_UTF8(sv); /* validate pointer */ |
463ee0b2 | 3144 | SvTAINT(sv); |
79072805 LW |
3145 | } |
3146 | ||
954c1994 GS |
3147 | /* |
3148 | =for apidoc sv_catpv_mg | |
3149 | ||
3150 | Like C<sv_catpv>, but also handles 'set' magic. | |
3151 | ||
3152 | =cut | |
3153 | */ | |
3154 | ||
ef50df4b | 3155 | void |
864dbfa3 | 3156 | Perl_sv_catpv_mg(pTHX_ register SV *sv, register const char *ptr) |
ef50df4b | 3157 | { |
51c1089b | 3158 | sv_catpv(sv,ptr); |
ef50df4b GS |
3159 | SvSETMAGIC(sv); |
3160 | } | |
3161 | ||
79072805 | 3162 | SV * |
864dbfa3 | 3163 | Perl_newSV(pTHX_ STRLEN len) |
79072805 LW |
3164 | { |
3165 | register SV *sv; | |
3166 | ||
4561caa4 | 3167 | new_SV(sv); |
79072805 LW |
3168 | if (len) { |
3169 | sv_upgrade(sv, SVt_PV); | |
3170 | SvGROW(sv, len + 1); | |
3171 | } | |
3172 | return sv; | |
3173 | } | |
3174 | ||
1edc1566 | 3175 | /* name is assumed to contain an SV* if (name && namelen == HEf_SVKEY) */ |
3176 | ||
954c1994 GS |
3177 | /* |
3178 | =for apidoc sv_magic | |
3179 | ||
3180 | Adds magic to an SV. | |
3181 | ||
3182 | =cut | |
3183 | */ | |
3184 | ||
79072805 | 3185 | void |
864dbfa3 | 3186 | Perl_sv_magic(pTHX_ register SV *sv, SV *obj, int how, const char *name, I32 namlen) |
79072805 LW |
3187 | { |
3188 | MAGIC* mg; | |
3189 | ||
0f15f207 MB |
3190 | if (SvREADONLY(sv)) { |
3191 | dTHR; | |
3280af22 | 3192 | if (PL_curcop != &PL_compiling && !strchr("gBf", how)) |
cea2e8a9 | 3193 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 3194 | } |
4633a7c4 | 3195 | if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 LW |
3196 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
3197 | if (how == 't') | |
565764a8 | 3198 | mg->mg_len |= 1; |
463ee0b2 | 3199 | return; |
748a9306 | 3200 | } |
463ee0b2 LW |
3201 | } |
3202 | else { | |
c6f8c383 | 3203 | (void)SvUPGRADE(sv, SVt_PVMG); |
463ee0b2 | 3204 | } |
79072805 LW |
3205 | Newz(702,mg, 1, MAGIC); |
3206 | mg->mg_moremagic = SvMAGIC(sv); | |
463ee0b2 | 3207 | |
79072805 | 3208 | SvMAGIC(sv) = mg; |
c277df42 | 3209 | if (!obj || obj == sv || how == '#' || how == 'r') |
8990e307 | 3210 | mg->mg_obj = obj; |
85e6fe83 | 3211 | else { |
11343788 | 3212 | dTHR; |
8990e307 | 3213 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
3214 | mg->mg_flags |= MGf_REFCOUNTED; |
3215 | } | |
79072805 | 3216 | mg->mg_type = how; |
565764a8 | 3217 | mg->mg_len = namlen; |
1edc1566 | 3218 | if (name) |
3219 | if (namlen >= 0) | |
3220 | mg->mg_ptr = savepvn(name, namlen); | |
c6ee37c5 | 3221 | else if (namlen == HEf_SVKEY) |
1edc1566 | 3222 | mg->mg_ptr = (char*)SvREFCNT_inc((SV*)name); |
3223 | ||
79072805 LW |
3224 | switch (how) { |
3225 | case 0: | |
22c35a8c | 3226 | mg->mg_virtual = &PL_vtbl_sv; |
79072805 | 3227 | break; |
a0d0e21e | 3228 | case 'A': |
22c35a8c | 3229 | mg->mg_virtual = &PL_vtbl_amagic; |
a0d0e21e LW |
3230 | break; |
3231 | case 'a': | |
22c35a8c | 3232 | mg->mg_virtual = &PL_vtbl_amagicelem; |
a0d0e21e LW |
3233 | break; |
3234 | case 'c': | |
3235 | mg->mg_virtual = 0; | |
3236 | break; | |
79072805 | 3237 | case 'B': |
22c35a8c | 3238 | mg->mg_virtual = &PL_vtbl_bm; |
79072805 | 3239 | break; |
6cef1e77 | 3240 | case 'D': |
22c35a8c | 3241 | mg->mg_virtual = &PL_vtbl_regdata; |
6cef1e77 IZ |
3242 | break; |
3243 | case 'd': | |
22c35a8c | 3244 | mg->mg_virtual = &PL_vtbl_regdatum; |
6cef1e77 | 3245 | break; |
79072805 | 3246 | case 'E': |
22c35a8c | 3247 | mg->mg_virtual = &PL_vtbl_env; |
79072805 | 3248 | break; |
55497cff | 3249 | case 'f': |
22c35a8c | 3250 | mg->mg_virtual = &PL_vtbl_fm; |
55497cff | 3251 | break; |
79072805 | 3252 | case 'e': |
22c35a8c | 3253 | mg->mg_virtual = &PL_vtbl_envelem; |
79072805 | 3254 | break; |
93a17b20 | 3255 | case 'g': |
22c35a8c | 3256 | mg->mg_virtual = &PL_vtbl_mglob; |
93a17b20 | 3257 | break; |
463ee0b2 | 3258 | case 'I': |
22c35a8c | 3259 | mg->mg_virtual = &PL_vtbl_isa; |
463ee0b2 LW |
3260 | break; |
3261 | case 'i': | |
22c35a8c | 3262 | mg->mg_virtual = &PL_vtbl_isaelem; |
463ee0b2 | 3263 | break; |
16660edb | 3264 | case 'k': |
22c35a8c | 3265 | mg->mg_virtual = &PL_vtbl_nkeys; |
16660edb | 3266 | break; |
79072805 | 3267 | case 'L': |
a0d0e21e | 3268 | SvRMAGICAL_on(sv); |
93a17b20 LW |
3269 | mg->mg_virtual = 0; |
3270 | break; | |
3271 | case 'l': | |
22c35a8c | 3272 | mg->mg_virtual = &PL_vtbl_dbline; |
79072805 | 3273 | break; |
f93b4edd MB |
3274 | #ifdef USE_THREADS |
3275 | case 'm': | |
22c35a8c | 3276 | mg->mg_virtual = &PL_vtbl_mutex; |
f93b4edd MB |
3277 | break; |
3278 | #endif /* USE_THREADS */ | |
36477c24 | 3279 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 | 3280 | case 'o': |
22c35a8c | 3281 | mg->mg_virtual = &PL_vtbl_collxfrm; |
bbce6d69 | 3282 | break; |
36477c24 | 3283 | #endif /* USE_LOCALE_COLLATE */ |
463ee0b2 | 3284 | case 'P': |
22c35a8c | 3285 | mg->mg_virtual = &PL_vtbl_pack; |
463ee0b2 LW |
3286 | break; |
3287 | case 'p': | |
a0d0e21e | 3288 | case 'q': |
22c35a8c | 3289 | mg->mg_virtual = &PL_vtbl_packelem; |
463ee0b2 | 3290 | break; |
c277df42 | 3291 | case 'r': |
22c35a8c | 3292 | mg->mg_virtual = &PL_vtbl_regexp; |
c277df42 | 3293 | break; |
79072805 | 3294 | case 'S': |
22c35a8c | 3295 | mg->mg_virtual = &PL_vtbl_sig; |
79072805 LW |
3296 | break; |
3297 | case 's': | |
22c35a8c | 3298 | mg->mg_virtual = &PL_vtbl_sigelem; |
79072805 | 3299 | break; |
463ee0b2 | 3300 | case 't': |
22c35a8c | 3301 | mg->mg_virtual = &PL_vtbl_taint; |
565764a8 | 3302 | mg->mg_len = 1; |
463ee0b2 | 3303 | break; |
79072805 | 3304 | case 'U': |
22c35a8c | 3305 | mg->mg_virtual = &PL_vtbl_uvar; |
79072805 LW |
3306 | break; |
3307 | case 'v': | |
22c35a8c | 3308 | mg->mg_virtual = &PL_vtbl_vec; |
79072805 LW |
3309 | break; |
3310 | case 'x': | |
22c35a8c | 3311 | mg->mg_virtual = &PL_vtbl_substr; |
79072805 | 3312 | break; |
5f05dabc | 3313 | case 'y': |
22c35a8c | 3314 | mg->mg_virtual = &PL_vtbl_defelem; |
5f05dabc | 3315 | break; |
79072805 | 3316 | case '*': |
22c35a8c | 3317 | mg->mg_virtual = &PL_vtbl_glob; |
79072805 LW |
3318 | break; |
3319 | case '#': | |
22c35a8c | 3320 | mg->mg_virtual = &PL_vtbl_arylen; |
79072805 | 3321 | break; |
a0d0e21e | 3322 | case '.': |
22c35a8c | 3323 | mg->mg_virtual = &PL_vtbl_pos; |
a0d0e21e | 3324 | break; |
810b8aa5 GS |
3325 | case '<': |
3326 | mg->mg_virtual = &PL_vtbl_backref; | |
3327 | break; | |
4633a7c4 LW |
3328 | case '~': /* Reserved for use by extensions not perl internals. */ |
3329 | /* Useful for attaching extension internal data to perl vars. */ | |
3330 | /* Note that multiple extensions may clash if magical scalars */ | |
3331 | /* etc holding private data from one are passed to another. */ | |
3332 | SvRMAGICAL_on(sv); | |
a0d0e21e | 3333 | break; |
79072805 | 3334 | default: |
cea2e8a9 | 3335 | Perl_croak(aTHX_ "Don't know how to handle magic of type '%c'", how); |
463ee0b2 | 3336 | } |
8990e307 LW |
3337 | mg_magical(sv); |
3338 | if (SvGMAGICAL(sv)) | |
3339 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
3340 | } |
3341 | ||
3342 | int | |
864dbfa3 | 3343 | Perl_sv_unmagic(pTHX_ SV *sv, int type) |
463ee0b2 LW |
3344 | { |
3345 | MAGIC* mg; | |
3346 | MAGIC** mgp; | |
91bba347 | 3347 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 LW |
3348 | return 0; |
3349 | mgp = &SvMAGIC(sv); | |
3350 | for (mg = *mgp; mg; mg = *mgp) { | |
3351 | if (mg->mg_type == type) { | |
3352 | MGVTBL* vtbl = mg->mg_virtual; | |
3353 | *mgp = mg->mg_moremagic; | |
1d7c1841 | 3354 | if (vtbl && vtbl->svt_free) |
fc0dc3b3 | 3355 | CALL_FPTR(vtbl->svt_free)(aTHX_ sv, mg); |
463ee0b2 | 3356 | if (mg->mg_ptr && mg->mg_type != 'g') |
565764a8 | 3357 | if (mg->mg_len >= 0) |
1edc1566 | 3358 | Safefree(mg->mg_ptr); |
565764a8 | 3359 | else if (mg->mg_len == HEf_SVKEY) |
1edc1566 | 3360 | SvREFCNT_dec((SV*)mg->mg_ptr); |
a0d0e21e LW |
3361 | if (mg->mg_flags & MGf_REFCOUNTED) |
3362 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
3363 | Safefree(mg); |
3364 | } | |
3365 | else | |
3366 | mgp = &mg->mg_moremagic; | |
79072805 | 3367 | } |
91bba347 | 3368 | if (!SvMAGIC(sv)) { |
463ee0b2 | 3369 | SvMAGICAL_off(sv); |
8990e307 | 3370 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
3371 | } |
3372 | ||
3373 | return 0; | |
79072805 LW |
3374 | } |
3375 | ||
810b8aa5 | 3376 | SV * |
864dbfa3 | 3377 | Perl_sv_rvweaken(pTHX_ SV *sv) |
810b8aa5 GS |
3378 | { |
3379 | SV *tsv; | |
3380 | if (!SvOK(sv)) /* let undefs pass */ | |
3381 | return sv; | |
3382 | if (!SvROK(sv)) | |
cea2e8a9 | 3383 | Perl_croak(aTHX_ "Can't weaken a nonreference"); |
810b8aa5 GS |
3384 | else if (SvWEAKREF(sv)) { |
3385 | dTHR; | |
3386 | if (ckWARN(WARN_MISC)) | |
cea2e8a9 | 3387 | Perl_warner(aTHX_ WARN_MISC, "Reference is already weak"); |
810b8aa5 GS |
3388 | return sv; |
3389 | } | |
3390 | tsv = SvRV(sv); | |
3391 | sv_add_backref(tsv, sv); | |
3392 | SvWEAKREF_on(sv); | |
3393 | SvREFCNT_dec(tsv); | |
3394 | return sv; | |
3395 | } | |
3396 | ||
3397 | STATIC void | |
cea2e8a9 | 3398 | S_sv_add_backref(pTHX_ SV *tsv, SV *sv) |
810b8aa5 GS |
3399 | { |
3400 | AV *av; | |
3401 | MAGIC *mg; | |
3402 | if (SvMAGICAL(tsv) && (mg = mg_find(tsv, '<'))) | |
3403 | av = (AV*)mg->mg_obj; | |
3404 | else { | |
3405 | av = newAV(); | |
3406 | sv_magic(tsv, (SV*)av, '<', NULL, 0); | |
3407 | SvREFCNT_dec(av); /* for sv_magic */ | |
3408 | } | |
3409 | av_push(av,sv); | |
3410 | } | |
3411 | ||
3412 | STATIC void | |
cea2e8a9 | 3413 | S_sv_del_backref(pTHX_ SV *sv) |
810b8aa5 GS |
3414 | { |
3415 | AV *av; | |
3416 | SV **svp; | |
3417 | I32 i; | |
3418 | SV *tsv = SvRV(sv); | |
3419 | MAGIC *mg; | |
3420 | if (!SvMAGICAL(tsv) || !(mg = mg_find(tsv, '<'))) | |
cea2e8a9 | 3421 | Perl_croak(aTHX_ "panic: del_backref"); |
810b8aa5 GS |
3422 | av = (AV *)mg->mg_obj; |
3423 | svp = AvARRAY(av); | |
3424 | i = AvFILLp(av); | |
3425 | while (i >= 0) { | |
3426 | if (svp[i] == sv) { | |
3427 | svp[i] = &PL_sv_undef; /* XXX */ | |
3428 | } | |
3429 | i--; | |
3430 | } | |
3431 | } | |
3432 | ||
954c1994 GS |
3433 | /* |
3434 | =for apidoc sv_insert | |
3435 | ||
3436 | Inserts a string at the specified offset/length within the SV. Similar to | |
3437 | the Perl substr() function. | |
3438 | ||
3439 | =cut | |
3440 | */ | |
3441 | ||
79072805 | 3442 | void |
864dbfa3 | 3443 | Perl_sv_insert(pTHX_ SV *bigstr, STRLEN offset, STRLEN len, char *little, STRLEN littlelen) |
79072805 LW |
3444 | { |
3445 | register char *big; | |
3446 | register char *mid; | |
3447 | register char *midend; | |
3448 | register char *bigend; | |
3449 | register I32 i; | |
6ff81951 GS |
3450 | STRLEN curlen; |
3451 | ||
79072805 | 3452 | |
8990e307 | 3453 | if (!bigstr) |
cea2e8a9 | 3454 | Perl_croak(aTHX_ "Can't modify non-existent substring"); |
6ff81951 GS |
3455 | SvPV_force(bigstr, curlen); |
3456 | if (offset + len > curlen) { | |
3457 | SvGROW(bigstr, offset+len+1); | |
3458 | Zero(SvPVX(bigstr)+curlen, offset+len-curlen, char); | |
3459 | SvCUR_set(bigstr, offset+len); | |
3460 | } | |
79072805 | 3461 | |
69b47968 | 3462 | SvTAINT(bigstr); |
79072805 LW |
3463 | i = littlelen - len; |
3464 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 3465 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
3466 | mid = big + offset + len; |
3467 | midend = bigend = big + SvCUR(bigstr); | |
3468 | bigend += i; | |
3469 | *bigend = '\0'; | |
3470 | while (midend > mid) /* shove everything down */ | |
3471 | *--bigend = *--midend; | |
3472 | Move(little,big+offset,littlelen,char); | |
3473 | SvCUR(bigstr) += i; | |
3474 | SvSETMAGIC(bigstr); | |
3475 | return; | |
3476 | } | |
3477 | else if (i == 0) { | |
463ee0b2 | 3478 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
3479 | SvSETMAGIC(bigstr); |
3480 | return; | |
3481 | } | |
3482 | ||
463ee0b2 | 3483 | big = SvPVX(bigstr); |
79072805 LW |
3484 | mid = big + offset; |
3485 | midend = mid + len; | |
3486 | bigend = big + SvCUR(bigstr); | |
3487 | ||
3488 | if (midend > bigend) | |
cea2e8a9 | 3489 | Perl_croak(aTHX_ "panic: sv_insert"); |
79072805 LW |
3490 | |
3491 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
3492 | if (littlelen) { | |
3493 | Move(little, mid, littlelen,char); | |
3494 | mid += littlelen; | |
3495 | } | |
3496 | i = bigend - midend; | |
3497 | if (i > 0) { | |
3498 | Move(midend, mid, i,char); | |
3499 | mid += i; | |
3500 | } | |
3501 | *mid = '\0'; | |
3502 | SvCUR_set(bigstr, mid - big); | |
3503 | } | |
3504 | /*SUPPRESS 560*/ | |
3505 | else if (i = mid - big) { /* faster from front */ | |
3506 | midend -= littlelen; | |
3507 | mid = midend; | |
3508 | sv_chop(bigstr,midend-i); | |
3509 | big += i; | |
3510 | while (i--) | |
3511 | *--midend = *--big; | |
3512 | if (littlelen) | |
3513 | Move(little, mid, littlelen,char); | |
3514 | } | |
3515 | else if (littlelen) { | |
3516 | midend -= littlelen; | |
3517 | sv_chop(bigstr,midend); | |
3518 | Move(little,midend,littlelen,char); | |
3519 | } | |
3520 | else { | |
3521 | sv_chop(bigstr,midend); | |
3522 | } | |
3523 | SvSETMAGIC(bigstr); | |
3524 | } | |
3525 | ||
3526 | /* make sv point to what nstr did */ | |
3527 | ||
3528 | void | |
864dbfa3 | 3529 | Perl_sv_replace(pTHX_ register SV *sv, register SV *nsv) |
79072805 | 3530 | { |
0453d815 | 3531 | dTHR; |
79072805 | 3532 | U32 refcnt = SvREFCNT(sv); |
2213622d | 3533 | SV_CHECK_THINKFIRST(sv); |
0453d815 PM |
3534 | if (SvREFCNT(nsv) != 1 && ckWARN_d(WARN_INTERNAL)) |
3535 | Perl_warner(aTHX_ WARN_INTERNAL, "Reference miscount in sv_replace()"); | |
93a17b20 | 3536 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
3537 | if (SvMAGICAL(nsv)) |
3538 | mg_free(nsv); | |
3539 | else | |
3540 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 3541 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 3542 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
3543 | SvMAGICAL_off(sv); |
3544 | SvMAGIC(sv) = 0; | |
3545 | } | |
79072805 LW |
3546 | SvREFCNT(sv) = 0; |
3547 | sv_clear(sv); | |
477f5d66 | 3548 | assert(!SvREFCNT(sv)); |
79072805 LW |
3549 | StructCopy(nsv,sv,SV); |
3550 | SvREFCNT(sv) = refcnt; | |
1edc1566 | 3551 | SvFLAGS(nsv) |= SVTYPEMASK; /* Mark as freed */ |
463ee0b2 | 3552 | del_SV(nsv); |
79072805 LW |
3553 | } |
3554 | ||
3555 | void | |
864dbfa3 | 3556 | Perl_sv_clear(pTHX_ register SV *sv) |
79072805 | 3557 | { |
ec12f114 | 3558 | HV* stash; |
79072805 LW |
3559 | assert(sv); |
3560 | assert(SvREFCNT(sv) == 0); | |
3561 | ||
ed6116ce | 3562 | if (SvOBJECT(sv)) { |
e858de61 | 3563 | dTHR; |
3280af22 | 3564 | if (PL_defstash) { /* Still have a symbol table? */ |
4e35701f | 3565 | djSP; |
8ebc5c01 | 3566 | GV* destructor; |
837485b6 | 3567 | SV tmpref; |
a0d0e21e | 3568 | |
837485b6 GS |
3569 | Zero(&tmpref, 1, SV); |
3570 | sv_upgrade(&tmpref, SVt_RV); | |
3571 | SvROK_on(&tmpref); | |
3572 | SvREADONLY_on(&tmpref); /* DESTROY() could be naughty */ | |
3573 | SvREFCNT(&tmpref) = 1; | |
8ebc5c01 | 3574 | |
4e8e7886 GS |
3575 | do { |
3576 | stash = SvSTASH(sv); | |
3577 | destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); | |
3578 | if (destructor) { | |
3579 | ENTER; | |
e788e7d3 | 3580 | PUSHSTACKi(PERLSI_DESTROY); |
837485b6 | 3581 | SvRV(&tmpref) = SvREFCNT_inc(sv); |
4e8e7886 GS |
3582 | EXTEND(SP, 2); |
3583 | PUSHMARK(SP); | |
837485b6 | 3584 | PUSHs(&tmpref); |
4e8e7886 | 3585 | PUTBACK; |
864dbfa3 GS |
3586 | call_sv((SV*)GvCV(destructor), |
3587 | G_DISCARD|G_EVAL|G_KEEPERR); | |
4e8e7886 | 3588 | SvREFCNT(sv)--; |
d3acc0f7 | 3589 | POPSTACK; |
3095d977 | 3590 | SPAGAIN; |
4e8e7886 GS |
3591 | LEAVE; |
3592 | } | |
3593 | } while (SvOBJECT(sv) && SvSTASH(sv) != stash); | |
8ebc5c01 | 3594 | |
837485b6 | 3595 | del_XRV(SvANY(&tmpref)); |
6f44e0a4 JP |
3596 | |
3597 | if (SvREFCNT(sv)) { | |
3598 | if (PL_in_clean_objs) | |
cea2e8a9 | 3599 | Perl_croak(aTHX_ "DESTROY created new reference to dead object '%s'", |
6f44e0a4 JP |
3600 | HvNAME(stash)); |
3601 | /* DESTROY gave object new lease on life */ | |
3602 | return; | |
3603 | } | |
a0d0e21e | 3604 | } |
4e8e7886 | 3605 | |
a0d0e21e | 3606 | if (SvOBJECT(sv)) { |
4e8e7886 | 3607 | SvREFCNT_dec(SvSTASH(sv)); /* possibly of changed persuasion */ |
a0d0e21e LW |
3608 | SvOBJECT_off(sv); /* Curse the object. */ |
3609 | if (SvTYPE(sv) != SVt_PVIO) | |
3280af22 | 3610 | --PL_sv_objcount; /* XXX Might want something more general */ |
a0d0e21e | 3611 | } |
463ee0b2 | 3612 | } |
c07a80fd | 3613 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
a0d0e21e | 3614 | mg_free(sv); |
ec12f114 | 3615 | stash = NULL; |
79072805 | 3616 | switch (SvTYPE(sv)) { |
8990e307 | 3617 | case SVt_PVIO: |
df0bd2f4 GS |
3618 | if (IoIFP(sv) && |
3619 | IoIFP(sv) != PerlIO_stdin() && | |
5f05dabc | 3620 | IoIFP(sv) != PerlIO_stdout() && |
3621 | IoIFP(sv) != PerlIO_stderr()) | |
93578b34 | 3622 | { |
f2b5be74 | 3623 | io_close((IO*)sv, FALSE); |
93578b34 | 3624 | } |
1d7c1841 | 3625 | if (IoDIRP(sv) && !(IoFLAGS(sv) & IOf_FAKE_DIRP)) |
1236053a | 3626 | PerlDir_close(IoDIRP(sv)); |
1d7c1841 | 3627 | IoDIRP(sv) = (DIR*)NULL; |
8990e307 LW |
3628 | Safefree(IoTOP_NAME(sv)); |
3629 | Safefree(IoFMT_NAME(sv)); | |
3630 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 3631 | /* FALL THROUGH */ |
79072805 | 3632 | case SVt_PVBM: |
a0d0e21e | 3633 | goto freescalar; |
79072805 | 3634 | case SVt_PVCV: |
748a9306 | 3635 | case SVt_PVFM: |
85e6fe83 | 3636 | cv_undef((CV*)sv); |
a0d0e21e | 3637 | goto freescalar; |
79072805 | 3638 | case SVt_PVHV: |
85e6fe83 | 3639 | hv_undef((HV*)sv); |
a0d0e21e | 3640 | break; |
79072805 | 3641 | case SVt_PVAV: |
85e6fe83 | 3642 | av_undef((AV*)sv); |
a0d0e21e | 3643 | break; |
02270b4e GS |
3644 | case SVt_PVLV: |
3645 | SvREFCNT_dec(LvTARG(sv)); | |
3646 | goto freescalar; | |
a0d0e21e | 3647 | case SVt_PVGV: |
1edc1566 | 3648 | gp_free((GV*)sv); |
a0d0e21e | 3649 | Safefree(GvNAME(sv)); |
ec12f114 JPC |
3650 | /* cannot decrease stash refcount yet, as we might recursively delete |
3651 | ourselves when the refcnt drops to zero. Delay SvREFCNT_dec | |
3652 | of stash until current sv is completely gone. | |
3653 | -- JohnPC, 27 Mar 1998 */ | |
3654 | stash = GvSTASH(sv); | |
a0d0e21e | 3655 | /* FALL THROUGH */ |
79072805 | 3656 | case SVt_PVMG: |
79072805 LW |
3657 | case SVt_PVNV: |
3658 | case SVt_PVIV: | |
a0d0e21e LW |
3659 | freescalar: |
3660 | (void)SvOOK_off(sv); | |
79072805 LW |
3661 | /* FALL THROUGH */ |
3662 | case SVt_PV: | |
a0d0e21e | 3663 | case SVt_RV: |
810b8aa5 GS |
3664 | if (SvROK(sv)) { |
3665 | if (SvWEAKREF(sv)) | |
3666 | sv_del_backref(sv); | |
3667 | else | |
3668 | SvREFCNT_dec(SvRV(sv)); | |
3669 | } | |
1edc1566 | 3670 | else if (SvPVX(sv) && SvLEN(sv)) |
463ee0b2 | 3671 | Safefree(SvPVX(sv)); |
79072805 | 3672 | break; |
a0d0e21e | 3673 | /* |
79072805 | 3674 | case SVt_NV: |
79072805 | 3675 | case SVt_IV: |
79072805 LW |
3676 | case SVt_NULL: |
3677 | break; | |
a0d0e21e | 3678 | */ |
79072805 LW |
3679 | } |
3680 | ||
3681 | switch (SvTYPE(sv)) { | |
3682 | case SVt_NULL: | |
3683 | break; | |
79072805 LW |
3684 | case SVt_IV: |
3685 | del_XIV(SvANY(sv)); | |
3686 | break; | |
3687 | case SVt_NV: | |
3688 | del_XNV(SvANY(sv)); | |
3689 | break; | |
ed6116ce LW |
3690 | case SVt_RV: |
3691 | del_XRV(SvANY(sv)); | |
3692 | break; | |
79072805 LW |
3693 | case SVt_PV: |
3694 | del_XPV(SvANY(sv)); | |
3695 | break; | |
3696 | case SVt_PVIV: | |
3697 | del_XPVIV(SvANY(sv)); | |
3698 | break; | |
3699 | case SVt_PVNV: | |
3700 | del_XPVNV(SvANY(sv)); | |
3701 | break; | |
3702 | case SVt_PVMG: | |
3703 | del_XPVMG(SvANY(sv)); | |
3704 | break; | |
3705 | case SVt_PVLV: | |
3706 | del_XPVLV(SvANY(sv)); | |
3707 | break; | |
3708 | case SVt_PVAV: | |
3709 | del_XPVAV(SvANY(sv)); | |
3710 | break; | |
3711 | case SVt_PVHV: | |
3712 | del_XPVHV(SvANY(sv)); | |
3713 | break; | |
3714 | case SVt_PVCV: | |
3715 | del_XPVCV(SvANY(sv)); | |
3716 | break; | |
3717 | case SVt_PVGV: | |
3718 | del_XPVGV(SvANY(sv)); | |
ec12f114 JPC |
3719 | /* code duplication for increased performance. */ |
3720 | SvFLAGS(sv) &= SVf_BREAK; | |
3721 | SvFLAGS(sv) |= SVTYPEMASK; | |
3722 | /* decrease refcount of the stash that owns this GV, if any */ | |
3723 | if (stash) | |
3724 | SvREFCNT_dec(stash); | |
3725 | return; /* not break, SvFLAGS reset already happened */ | |
79072805 LW |
3726 | case SVt_PVBM: |
3727 | del_XPVBM(SvANY(sv)); | |
3728 | break; | |
3729 | case SVt_PVFM: | |
3730 | del_XPVFM(SvANY(sv)); | |
3731 | break; | |
8990e307 LW |
3732 | case SVt_PVIO: |
3733 | del_XPVIO(SvANY(sv)); | |
3734 | break; | |
79072805 | 3735 | } |
a0d0e21e | 3736 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 3737 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
3738 | } |
3739 | ||
3740 | SV * | |
864dbfa3 | 3741 | Perl_sv_newref(pTHX_ SV *sv) |
79072805 | 3742 | { |
463ee0b2 | 3743 | if (sv) |
dce16143 | 3744 | ATOMIC_INC(SvREFCNT(sv)); |
79072805 LW |
3745 | return sv; |
3746 | } | |
3747 | ||
3748 | void | |
864dbfa3 | 3749 | Perl_sv_free(pTHX_ SV *sv) |
79072805 | 3750 | { |
0453d815 | 3751 | dTHR; |
dce16143 MB |
3752 | int refcount_is_zero; |
3753 | ||
79072805 LW |
3754 | if (!sv) |
3755 | return; | |
a0d0e21e LW |
3756 | if (SvREFCNT(sv) == 0) { |
3757 | if (SvFLAGS(sv) & SVf_BREAK) | |
3758 | return; | |
3280af22 | 3759 | if (PL_in_clean_all) /* All is fair */ |
1edc1566 | 3760 | return; |
d689ffdd JP |
3761 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
3762 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
3763 | SvREFCNT(sv) = (~(U32)0)/2; | |
3764 | return; | |
3765 | } | |
0453d815 PM |
3766 | if (ckWARN_d(WARN_INTERNAL)) |
3767 | Perl_warner(aTHX_ WARN_INTERNAL, "Attempt to free unreferenced scalar"); | |
79072805 LW |
3768 | return; |
3769 | } | |
dce16143 MB |
3770 | ATOMIC_DEC_AND_TEST(refcount_is_zero, SvREFCNT(sv)); |
3771 | if (!refcount_is_zero) | |
8990e307 | 3772 | return; |
463ee0b2 LW |
3773 | #ifdef DEBUGGING |
3774 | if (SvTEMP(sv)) { | |
0453d815 | 3775 | if (ckWARN_d(WARN_DEBUGGING)) |
f248d071 | 3776 | Perl_warner(aTHX_ WARN_DEBUGGING, |
1d7c1841 GS |
3777 | "Attempt to free temp prematurely: SV 0x%"UVxf, |
3778 | PTR2UV(sv)); | |
79072805 | 3779 | return; |
79072805 | 3780 | } |
463ee0b2 | 3781 | #endif |
d689ffdd JP |
3782 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) { |
3783 | /* make sure SvREFCNT(sv)==0 happens very seldom */ | |
3784 | SvREFCNT(sv) = (~(U32)0)/2; | |
3785 | return; | |
3786 | } | |
79072805 | 3787 | sv_clear(sv); |
477f5d66 CS |
3788 | if (! SvREFCNT(sv)) |
3789 | del_SV(sv); | |
79072805 LW |
3790 | } |
3791 | ||
954c1994 GS |
3792 | /* |
3793 | =for apidoc sv_len | |
3794 | ||
3795 | Returns the length of the string in the SV. See also C<SvCUR>. | |
3796 | ||
3797 | =cut | |
3798 | */ | |
3799 | ||
79072805 | 3800 | STRLEN |
864dbfa3 | 3801 | Perl_sv_len(pTHX_ register SV *sv) |
79072805 | 3802 | { |
748a9306 | 3803 | char *junk; |
463ee0b2 | 3804 | STRLEN len; |
79072805 LW |
3805 | |
3806 | if (!sv) | |
3807 | return 0; | |
3808 | ||
8990e307 | 3809 | if (SvGMAGICAL(sv)) |
565764a8 | 3810 | len = mg_length(sv); |
8990e307 | 3811 | else |
748a9306 | 3812 | junk = SvPV(sv, len); |
463ee0b2 | 3813 | return len; |
79072805 LW |
3814 | } |
3815 | ||
a0ed51b3 | 3816 | STRLEN |
864dbfa3 | 3817 | Perl_sv_len_utf8(pTHX_ register SV *sv) |
a0ed51b3 | 3818 | { |
dfe13c55 GS |
3819 | U8 *s; |
3820 | U8 *send; | |
a0ed51b3 LW |
3821 | STRLEN len; |
3822 | ||
3823 | if (!sv) | |
3824 | return 0; | |
3825 | ||
3826 | #ifdef NOTYET | |
3827 | if (SvGMAGICAL(sv)) | |
3828 | len = mg_length(sv); | |
3829 | else | |
3830 | #endif | |
dfe13c55 | 3831 | s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
3832 | send = s + len; |
3833 | len = 0; | |
3834 | while (s < send) { | |
3835 | s += UTF8SKIP(s); | |
3836 | len++; | |
3837 | } | |
3838 | return len; | |
3839 | } | |
3840 | ||
3841 | void | |
864dbfa3 | 3842 | Perl_sv_pos_u2b(pTHX_ register SV *sv, I32* offsetp, I32* lenp) |
a0ed51b3 | 3843 | { |
dfe13c55 GS |
3844 | U8 *start; |
3845 | U8 *s; | |
3846 | U8 *send; | |
a0ed51b3 LW |
3847 | I32 uoffset = *offsetp; |
3848 | STRLEN len; | |
3849 | ||
3850 | if (!sv) | |
3851 | return; | |
3852 | ||
dfe13c55 | 3853 | start = s = (U8*)SvPV(sv, len); |
a0ed51b3 LW |
3854 | send = s + len; |
3855 | while (s < send && uoffset--) | |
3856 | s += UTF8SKIP(s); | |
bb40f870 GA |
3857 | if (s >= send) |
3858 | s = send; | |
a0ed51b3 LW |
3859 | *offsetp = s - start; |
3860 | if (lenp) { | |
3861 | I32 ulen = *lenp; | |
3862 | start = s; | |
3863 | while (s < send && ulen--) | |
3864 | s += UTF8SKIP(s); | |
bb40f870 GA |
3865 | if (s >= send) |
3866 | s = send; | |
a0ed51b3 LW |
3867 | *lenp = s - start; |
3868 | } | |
3869 | return; | |
3870 | } | |
3871 | ||
3872 | void | |
864dbfa3 | 3873 | Perl_sv_pos_b2u(pTHX_ register SV *sv, I32* offsetp) |
a0ed51b3 | 3874 | { |
dfe13c55 GS |
3875 | U8 *s; |
3876 | U8 *send; | |
a0ed51b3 LW |
3877 | STRLEN len; |
3878 | ||
3879 | if (!sv) | |
3880 | return; | |
3881 | ||
dfe13c55 | 3882 | s = (U8*)SvPV(sv, len); |
a0ed51b3 | 3883 | if (len < *offsetp) |
cea2e8a9 | 3884 | Perl_croak(aTHX_ "panic: bad byte offset"); |
a0ed51b3 LW |
3885 | send = s + *offsetp; |
3886 | len = 0; | |
3887 | while (s < send) { | |
3888 | s += UTF8SKIP(s); | |
3889 | ++len; | |
3890 | } | |
3891 | if (s != send) { | |
0453d815 PM |
3892 | dTHR; |
3893 | if (ckWARN_d(WARN_UTF8)) | |
3894 | Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character"); | |
a0ed51b3 LW |
3895 | --len; |
3896 | } | |
3897 | *offsetp = len; | |
3898 | return; | |
3899 | } | |
3900 | ||
954c1994 GS |
3901 | /* |
3902 | =for apidoc sv_eq | |
3903 | ||
3904 | Returns a boolean indicating whether the strings in the two SVs are | |
3905 | identical. | |
3906 | ||
3907 | =cut | |
3908 | */ | |
3909 | ||
79072805 | 3910 | I32 |
864dbfa3 | 3911 | Perl_sv_eq(pTHX_ register SV *str1, register SV *str2) |
79072805 LW |
3912 | { |
3913 | char *pv1; | |
463ee0b2 | 3914 | STRLEN cur1; |
79072805 | 3915 | char *pv2; |
463ee0b2 | 3916 | STRLEN cur2; |
79072805 LW |
3917 | |
3918 | if (!str1) { | |
3919 | pv1 = ""; | |
3920 | cur1 = 0; | |
3921 | } | |
463ee0b2 LW |
3922 | else |
3923 | pv1 = SvPV(str1, cur1); | |
79072805 LW |
3924 | |
3925 | if (!str2) | |
3926 | return !cur1; | |
463ee0b2 LW |
3927 | else |
3928 | pv2 = SvPV(str2, cur2); | |
79072805 LW |
3929 | |
3930 | if (cur1 != cur2) | |
3931 | return 0; | |
3932 | ||
36477c24 | 3933 | return memEQ(pv1, pv2, cur1); |
79072805 LW |
3934 | } |
3935 | ||
954c1994 GS |
3936 | /* |
3937 | =for apidoc sv_cmp | |
3938 | ||
3939 | Compares the strings in two SVs. Returns -1, 0, or 1 indicating whether the | |
3940 | string in C<sv1> is less than, equal to, or greater than the string in | |
3941 | C<sv2>. | |
3942 | ||
3943 | =cut | |
3944 | */ | |
3945 | ||
79072805 | 3946 | I32 |
864dbfa3 | 3947 | Perl_sv_cmp(pTHX_ register SV *str1, register SV *str2) |
79072805 | 3948 | { |
560a288e GS |
3949 | STRLEN cur1, cur2; |
3950 | char *pv1, *pv2; | |
79072805 | 3951 | I32 retval; |
560a288e GS |
3952 | bool utf1; |
3953 | ||
3954 | if (str1) { | |
3955 | pv1 = SvPV(str1, cur1); | |
3956 | } | |
3957 | else { | |
3958 | cur1 = 0; | |
3959 | } | |
3960 | ||
3961 | if (str2) { | |
3962 | if (SvPOK(str2)) { | |
3963 | if (SvPOK(str1) && SvUTF8(str1) != SvUTF8(str2) && !IN_BYTE) { | |
3964 | /* must upgrade other to UTF8 first */ | |
3965 | if (SvUTF8(str1)) { | |
3966 | sv_utf8_upgrade(str2); | |
3967 | } | |
3968 | else { | |
3969 | sv_utf8_upgrade(str1); | |
3970 | /* refresh pointer and length */ | |
3971 | pv1 = SvPVX(str1); | |
3972 | cur1 = SvCUR(str1); | |
3973 | } | |
3974 | } | |
3975 | pv2 = SvPVX(str2); | |
3976 | cur2 = SvCUR(str2); | |
3977 | } | |
3978 | else { | |
3979 | pv2 = sv_2pv(str2, &cur2); | |
3980 | } | |
3981 | } | |
3982 | else { | |
3983 | cur2 = 0; | |
3984 | } | |
79072805 | 3985 | |
bbce6d69 | 3986 | if (!cur1) |
3987 | return cur2 ? -1 : 0; | |
16660edb | 3988 | |
bbce6d69 | 3989 | if (!cur2) |
3990 | return 1; | |
79072805 | 3991 | |
bbce6d69 | 3992 | retval = memcmp((void*)pv1, (void*)pv2, cur1 < cur2 ? cur1 : cur2); |
16660edb | 3993 | |
bbce6d69 | 3994 | if (retval) |
3995 | return retval < 0 ? -1 : 1; | |
16660edb | 3996 | |
bbce6d69 | 3997 | if (cur1 == cur2) |
3998 | return 0; | |
3999 | else | |
4000 | return cur1 < cur2 ? -1 : 1; | |
4001 | } | |
16660edb | 4002 | |
bbce6d69 | 4003 | I32 |
864dbfa3 | 4004 | Perl_sv_cmp_locale(pTHX_ register SV *sv1, register SV *sv2) |
bbce6d69 | 4005 | { |
36477c24 | 4006 | #ifdef USE_LOCALE_COLLATE |
16660edb | 4007 | |
bbce6d69 | 4008 | char *pv1, *pv2; |
4009 | STRLEN len1, len2; | |
4010 | I32 retval; | |
16660edb | 4011 | |
3280af22 | 4012 | if (PL_collation_standard) |
bbce6d69 | 4013 | goto raw_compare; |
16660edb | 4014 | |
bbce6d69 | 4015 | len1 = 0; |
8ac85365 | 4016 | pv1 = sv1 ? sv_collxfrm(sv1, &len1) : (char *) NULL; |
bbce6d69 | 4017 | len2 = 0; |
8ac85365 | 4018 | pv2 = sv2 ? sv_collxfrm(sv2, &len2) : (char *) NULL; |
16660edb | 4019 | |
bbce6d69 | 4020 | if (!pv1 || !len1) { |
4021 | if (pv2 && len2) | |
4022 | return -1; | |
4023 | else | |
4024 | goto raw_compare; | |
4025 | } | |
4026 | else { | |
4027 | if (!pv2 || !len2) | |
4028 | return 1; | |
4029 | } | |
16660edb | 4030 | |
bbce6d69 | 4031 | retval = memcmp((void*)pv1, (void*)pv2, len1 < len2 ? len1 : len2); |
16660edb | 4032 | |
bbce6d69 | 4033 | if (retval) |
16660edb | 4034 | return retval < 0 ? -1 : 1; |
4035 | ||
bbce6d69 | 4036 | /* |
4037 | * When the result of collation is equality, that doesn't mean | |
4038 | * that there are no differences -- some locales exclude some | |
4039 | * characters from consideration. So to avoid false equalities, | |
4040 | * we use the raw string as a tiebreaker. | |
4041 | */ | |
16660edb | 4042 | |
bbce6d69 | 4043 | raw_compare: |
4044 | /* FALL THROUGH */ | |
16660edb | 4045 | |
36477c24 | 4046 | #endif /* USE_LOCALE_COLLATE */ |
16660edb | 4047 | |
bbce6d69 | 4048 | return sv_cmp(sv1, sv2); |
4049 | } | |
79072805 | 4050 | |
36477c24 | 4051 | #ifdef USE_LOCALE_COLLATE |
7a4c00b4 | 4052 | /* |
4053 | * Any scalar variable may carry an 'o' magic that contains the | |
4054 | * scalar data of the variable transformed to such a format that | |
4055 | * a normal memory comparison can be used to compare the data | |
4056 | * according to the locale settings. | |
4057 | */ | |
bbce6d69 | 4058 | char * |
864dbfa3 | 4059 | Perl_sv_collxfrm(pTHX_ SV *sv, STRLEN *nxp) |
bbce6d69 | 4060 | { |
7a4c00b4 | 4061 | MAGIC *mg; |
16660edb | 4062 | |
8ac85365 | 4063 | mg = SvMAGICAL(sv) ? mg_find(sv, 'o') : (MAGIC *) NULL; |
3280af22 | 4064 | if (!mg || !mg->mg_ptr || *(U32*)mg->mg_ptr != PL_collation_ix) { |
bbce6d69 | 4065 | char *s, *xf; |
4066 | STRLEN len, xlen; | |
4067 | ||
7a4c00b4 | 4068 | if (mg) |
4069 | Safefree(mg->mg_ptr); | |
bbce6d69 | 4070 | s = SvPV(sv, len); |
4071 | if ((xf = mem_collxfrm(s, len, &xlen))) { | |
ff0cee69 | 4072 | if (SvREADONLY(sv)) { |
4073 | SAVEFREEPV(xf); | |
4074 | *nxp = xlen; | |
3280af22 | 4075 | return xf + sizeof(PL_collation_ix); |
ff0cee69 | 4076 | } |
7a4c00b4 | 4077 | if (! mg) { |
4078 | sv_magic(sv, 0, 'o', 0, 0); | |
4079 | mg = mg_find(sv, 'o'); | |
4080 | assert(mg); | |
bbce6d69 | 4081 | } |
7a4c00b4 | 4082 | mg->mg_ptr = xf; |
565764a8 | 4083 | mg->mg_len = xlen; |
7a4c00b4 | 4084 | } |
4085 | else { | |
ff0cee69 | 4086 | if (mg) { |
4087 | mg->mg_ptr = NULL; | |
565764a8 | 4088 | mg->mg_len = -1; |
ff0cee69 | 4089 | } |
bbce6d69 | 4090 | } |
4091 | } | |
7a4c00b4 | 4092 | if (mg && mg->mg_ptr) { |
565764a8 | 4093 | *nxp = mg->mg_len; |
3280af22 | 4094 | return mg->mg_ptr + sizeof(PL_collation_ix); |
bbce6d69 | 4095 | } |
4096 | else { | |
4097 | *nxp = 0; | |
4098 | return NULL; | |
16660edb | 4099 | } |
79072805 LW |
4100 | } |
4101 | ||
36477c24 | 4102 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 | 4103 | |
79072805 | 4104 | char * |
864dbfa3 | 4105 | Perl_sv_gets(pTHX_ register SV *sv, register PerlIO *fp, I32 append) |
79072805 | 4106 | { |
aeea060c | 4107 | dTHR; |
c07a80fd | 4108 | char *rsptr; |
4109 | STRLEN rslen; | |
4110 | register STDCHAR rslast; | |
4111 | register STDCHAR *bp; | |
4112 | register I32 cnt; | |
4113 | I32 i; | |
4114 | ||
2213622d | 4115 | SV_CHECK_THINKFIRST(sv); |
6fc92669 | 4116 | (void)SvUPGRADE(sv, SVt_PV); |
99491443 | 4117 | |
ff68c719 | 4118 | SvSCREAM_off(sv); |
c07a80fd | 4119 | |
3280af22 | 4120 | if (RsSNARF(PL_rs)) { |
c07a80fd | 4121 | rsptr = NULL; |
4122 | rslen = 0; | |
4123 | } | |
3280af22 | 4124 | else if (RsRECORD(PL_rs)) { |
5b2b9c68 HM |
4125 | I32 recsize, bytesread; |
4126 | char *buffer; | |
4127 | ||
4128 | /* Grab the size of the record we're getting */ | |
3280af22 | 4129 | recsize = SvIV(SvRV(PL_rs)); |
5b2b9c68 | 4130 | (void)SvPOK_only(sv); /* Validate pointer */ |
e670df4e | 4131 | buffer = SvGROW(sv, recsize + 1); |
5b2b9c68 HM |
4132 | /* Go yank in */ |
4133 | #ifdef VMS | |
4134 | /* VMS wants read instead of fread, because fread doesn't respect */ | |
4135 | /* RMS record boundaries. This is not necessarily a good thing to be */ | |
4136 | /* doing, but we've got no other real choice */ | |
4137 | bytesread = PerlLIO_read(PerlIO_fileno(fp), buffer, recsize); | |
4138 | #else | |
4139 | bytesread = PerlIO_read(fp, buffer, recsize); | |
4140 | #endif | |
4141 | SvCUR_set(sv, bytesread); | |
e670df4e | 4142 | buffer[bytesread] = '\0'; |
5b2b9c68 HM |
4143 | return(SvCUR(sv) ? SvPVX(sv) : Nullch); |
4144 | } | |
3280af22 | 4145 | else if (RsPARA(PL_rs)) { |
c07a80fd | 4146 | rsptr = "\n\n"; |
4147 | rslen = 2; | |
4148 | } | |
4149 | else | |
3280af22 | 4150 | rsptr = SvPV(PL_rs, rslen); |
c07a80fd | 4151 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
4152 | ||
3280af22 | 4153 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
79072805 | 4154 | do { /* to make sure file boundaries work right */ |
760ac839 | 4155 | if (PerlIO_eof(fp)) |
a0d0e21e | 4156 | return 0; |
760ac839 | 4157 | i = PerlIO_getc(fp); |
79072805 | 4158 | if (i != '\n') { |
a0d0e21e LW |
4159 | if (i == -1) |
4160 | return 0; | |
760ac839 | 4161 | PerlIO_ungetc(fp,i); |
79072805 LW |
4162 | break; |
4163 | } | |
4164 | } while (i != EOF); | |
4165 | } | |
c07a80fd | 4166 | |
760ac839 LW |
4167 | /* See if we know enough about I/O mechanism to cheat it ! */ |
4168 | ||
4169 | /* This used to be #ifdef test - it is made run-time test for ease | |
4170 | of abstracting out stdio interface. One call should be cheap | |
4171 | enough here - and may even be a macro allowing compile | |
4172 | time optimization. | |
4173 | */ | |
4174 | ||
4175 | if (PerlIO_fast_gets(fp)) { | |
4176 | ||
4177 | /* | |
4178 | * We're going to steal some values from the stdio struct | |
4179 | * and put EVERYTHING in the innermost loop into registers. | |
4180 | */ | |
4181 | register STDCHAR *ptr; | |
4182 | STRLEN bpx; | |
4183 | I32 shortbuffered; | |
4184 | ||
16660edb | 4185 | #if defined(VMS) && defined(PERLIO_IS_STDIO) |
4186 | /* An ungetc()d char is handled separately from the regular | |
4187 | * buffer, so we getc() it back out and stuff it in the buffer. | |
4188 | */ | |
4189 | i = PerlIO_getc(fp); | |
4190 | if (i == EOF) return 0; | |
4191 | *(--((*fp)->_ptr)) = (unsigned char) i; | |
4192 | (*fp)->_cnt++; | |
4193 | #endif | |
c07a80fd | 4194 | |
c2960299 | 4195 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd | 4196 | |
a20bf0c3 | 4197 | cnt = PerlIO_get_cnt(fp); /* get count into register */ |
a0d0e21e | 4198 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
4199 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
4200 | if (cnt > 80 && SvLEN(sv) > append) { | |
4201 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
4202 | cnt -= shortbuffered; | |
4203 | } | |
4204 | else { | |
4205 | shortbuffered = 0; | |
bbce6d69 | 4206 | /* remember that cnt can be negative */ |
4207 | SvGROW(sv, append + (cnt <= 0 ? 2 : (cnt + 1))); | |
79072805 LW |
4208 | } |
4209 | } | |
4210 | else | |
4211 | shortbuffered = 0; | |
c07a80fd | 4212 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
a20bf0c3 | 4213 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); |
16660edb | 4214 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 4215 | "Screamer: entering, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
16660edb | 4216 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
4217 | "Screamer: entering: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
4218 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), | |
4219 | PTR2UV(PerlIO_has_base(fp) ? PerlIO_get_base(fp) : 0))); | |
79072805 LW |
4220 | for (;;) { |
4221 | screamer: | |
93a17b20 | 4222 | if (cnt > 0) { |
c07a80fd | 4223 | if (rslen) { |
760ac839 LW |
4224 | while (cnt > 0) { /* this | eat */ |
4225 | cnt--; | |
c07a80fd | 4226 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
4227 | goto thats_all_folks; /* screams | sed :-) */ | |
4228 | } | |
4229 | } | |
4230 | else { | |
36477c24 | 4231 | Copy(ptr, bp, cnt, char); /* this | eat */ |
c07a80fd | 4232 | bp += cnt; /* screams | dust */ |
4233 | ptr += cnt; /* louder | sed :-) */ | |
a5f75d66 | 4234 | cnt = 0; |
93a17b20 | 4235 | } |
79072805 LW |
4236 | } |
4237 | ||
748a9306 | 4238 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
4239 | cnt = shortbuffered; |
4240 | shortbuffered = 0; | |
c07a80fd | 4241 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
4242 | SvCUR_set(sv, bpx); |
4243 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
c07a80fd | 4244 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 LW |
4245 | continue; |
4246 | } | |
4247 | ||
16660edb | 4248 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
4249 | "Screamer: going to getc, ptr=%"UVuf", cnt=%ld\n", |
4250 | PTR2UV(ptr),(long)cnt)); | |
a20bf0c3 | 4251 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* deregisterize cnt and ptr */ |
16660edb | 4252 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
4253 | "Screamer: pre: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
4254 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), | |
4255 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
16660edb | 4256 | /* This used to call 'filbuf' in stdio form, but as that behaves like |
774d564b | 4257 | getc when cnt <= 0 we use PerlIO_getc here to avoid introducing |
4258 | another abstraction. */ | |
760ac839 | 4259 | i = PerlIO_getc(fp); /* get more characters */ |
16660edb | 4260 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
4261 | "Screamer: post: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
4262 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), | |
4263 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
a20bf0c3 JH |
4264 | cnt = PerlIO_get_cnt(fp); |
4265 | ptr = (STDCHAR*)PerlIO_get_ptr(fp); /* reregisterize cnt and ptr */ | |
16660edb | 4266 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 4267 | "Screamer: after getc, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
79072805 | 4268 | |
748a9306 LW |
4269 | if (i == EOF) /* all done for ever? */ |
4270 | goto thats_really_all_folks; | |
4271 | ||
c07a80fd | 4272 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 LW |
4273 | SvCUR_set(sv, bpx); |
4274 | SvGROW(sv, bpx + cnt + 2); | |
c07a80fd | 4275 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
4276 | ||
760ac839 | 4277 | *bp++ = i; /* store character from PerlIO_getc */ |
79072805 | 4278 | |
c07a80fd | 4279 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 | 4280 | goto thats_all_folks; |
79072805 LW |
4281 | } |
4282 | ||
4283 | thats_all_folks: | |
c07a80fd | 4284 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
36477c24 | 4285 | memNE((char*)bp - rslen, rsptr, rslen)) |
760ac839 | 4286 | goto screamer; /* go back to the fray */ |
79072805 LW |
4287 | thats_really_all_folks: |
4288 | if (shortbuffered) | |
4289 | cnt += shortbuffered; | |
16660edb | 4290 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 | 4291 | "Screamer: quitting, ptr=%"UVuf", cnt=%ld\n",PTR2UV(ptr),(long)cnt)); |
a20bf0c3 | 4292 | PerlIO_set_ptrcnt(fp, ptr, cnt); /* put these back or we're in trouble */ |
16660edb | 4293 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
1d7c1841 GS |
4294 | "Screamer: end: FILE * thinks ptr=%"UVuf", cnt=%ld, base=%"UVuf"\n", |
4295 | PTR2UV(PerlIO_get_ptr(fp)), (long)PerlIO_get_cnt(fp), | |
4296 | PTR2UV(PerlIO_has_base (fp) ? PerlIO_get_base(fp) : 0))); | |
79072805 | 4297 | *bp = '\0'; |
760ac839 | 4298 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
16660edb | 4299 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
fb73857a | 4300 | "Screamer: done, len=%ld, string=|%.*s|\n", |
4301 | (long)SvCUR(sv),(int)SvCUR(sv),SvPVX(sv))); | |
760ac839 LW |
4302 | } |
4303 | else | |
79072805 | 4304 | { |
4d2c4e07 | 4305 | #ifndef EPOC |
760ac839 | 4306 | /*The big, slow, and stupid way */ |
c07a80fd | 4307 | STDCHAR buf[8192]; |
4d2c4e07 OF |
4308 | #else |
4309 | /* Need to work around EPOC SDK features */ | |
4310 | /* On WINS: MS VC5 generates calls to _chkstk, */ | |
4311 | /* if a `large' stack frame is allocated */ | |
4312 | /* gcc on MARM does not generate calls like these */ | |
4313 | STDCHAR buf[1024]; | |
4314 | #endif | |
79072805 | 4315 | |
760ac839 | 4316 | screamer2: |
c07a80fd | 4317 | if (rslen) { |
760ac839 LW |
4318 | register STDCHAR *bpe = buf + sizeof(buf); |
4319 | bp = buf; | |
4320 | while ((i = PerlIO_getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) | |
4321 | ; /* keep reading */ | |
4322 | cnt = bp - buf; | |
c07a80fd | 4323 | } |
4324 | else { | |
760ac839 | 4325 | cnt = PerlIO_read(fp,(char*)buf, sizeof(buf)); |
16660edb | 4326 | /* Accomodate broken VAXC compiler, which applies U8 cast to |
4327 | * both args of ?: operator, causing EOF to change into 255 | |
4328 | */ | |
4329 | if (cnt) { i = (U8)buf[cnt - 1]; } else { i = EOF; } | |
c07a80fd | 4330 | } |
79072805 LW |
4331 | |
4332 | if (append) | |
760ac839 | 4333 | sv_catpvn(sv, (char *) buf, cnt); |
79072805 | 4334 | else |
760ac839 | 4335 | sv_setpvn(sv, (char *) buf, cnt); |
c07a80fd | 4336 | |
4337 | if (i != EOF && /* joy */ | |
4338 | (!rslen || | |
4339 | SvCUR(sv) < rslen || | |
36477c24 | 4340 | memNE(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 LW |
4341 | { |
4342 | append = -1; | |
63e4d877 CS |
4343 | /* |
4344 | * If we're reading from a TTY and we get a short read, | |
4345 | * indicating that the user hit his EOF character, we need | |
4346 | * to notice it now, because if we try to read from the TTY | |
4347 | * again, the EOF condition will disappear. | |
4348 | * | |
4349 | * The comparison of cnt to sizeof(buf) is an optimization | |
4350 | * that prevents unnecessary calls to feof(). | |
4351 | * | |
4352 | * - jik 9/25/96 | |
4353 | */ | |
4354 | if (!(cnt < sizeof(buf) && PerlIO_eof(fp))) | |
4355 | goto screamer2; | |
79072805 LW |
4356 | } |
4357 | } | |
4358 | ||
3280af22 | 4359 | if (RsPARA(PL_rs)) { /* have to do this both before and after */ |
c07a80fd | 4360 | while (i != EOF) { /* to make sure file boundaries work right */ |
760ac839 | 4361 | i = PerlIO_getc(fp); |
79072805 | 4362 | if (i != '\n') { |
760ac839 | 4363 | PerlIO_ungetc(fp,i); |
79072805 LW |
4364 | break; |
4365 | } | |
4366 | } | |
4367 | } | |
c07a80fd | 4368 | |
4369 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; | |
79072805 LW |
4370 | } |
4371 | ||
760ac839 | 4372 | |
954c1994 GS |
4373 | /* |
4374 | =for apidoc sv_inc | |
4375 | ||
4376 | Auto-increment of the value in the SV. | |
4377 | ||
4378 | =cut | |
4379 | */ | |
4380 | ||
79072805 | 4381 | void |
864dbfa3 | 4382 | Perl_sv_inc(pTHX_ register SV *sv) |
79072805 LW |
4383 | { |
4384 | register char *d; | |
463ee0b2 | 4385 | int flags; |
79072805 LW |
4386 | |
4387 | if (!sv) | |
4388 | return; | |
b23a5f78 GB |
4389 | if (SvGMAGICAL(sv)) |
4390 | mg_get(sv); | |
ed6116ce | 4391 | if (SvTHINKFIRST(sv)) { |
0f15f207 MB |
4392 | if (SvREADONLY(sv)) { |
4393 | dTHR; | |
3280af22 | 4394 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 4395 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4396 | } |
a0d0e21e | 4397 | if (SvROK(sv)) { |
b5be31e9 | 4398 | IV i; |
9e7bc3e8 JD |
4399 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) |
4400 | return; | |
56431972 | 4401 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
4402 | sv_unref(sv); |
4403 | sv_setiv(sv, i); | |
a0d0e21e | 4404 | } |
ed6116ce | 4405 | } |
8990e307 | 4406 | flags = SvFLAGS(sv); |
8990e307 | 4407 | if (flags & SVp_NOK) { |
a0d0e21e | 4408 | (void)SvNOK_only(sv); |
55497cff | 4409 | SvNVX(sv) += 1.0; |
4410 | return; | |
4411 | } | |
4412 | if (flags & SVp_IOK) { | |
25da4f38 IZ |
4413 | if (SvIsUV(sv)) { |
4414 | if (SvUVX(sv) == UV_MAX) | |
65202027 | 4415 | sv_setnv(sv, (NV)UV_MAX + 1.0); |
25da4f38 IZ |
4416 | else |
4417 | (void)SvIOK_only_UV(sv); | |
4418 | ++SvUVX(sv); | |
4419 | } else { | |
4420 | if (SvIVX(sv) == IV_MAX) | |
65202027 | 4421 | sv_setnv(sv, (NV)IV_MAX + 1.0); |
25da4f38 IZ |
4422 | else { |
4423 | (void)SvIOK_only(sv); | |
4424 | ++SvIVX(sv); | |
4425 | } | |
55497cff | 4426 | } |
79072805 LW |
4427 | return; |
4428 | } | |
8990e307 | 4429 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
4633a7c4 LW |
4430 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
4431 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 4432 | SvNVX(sv) = 1.0; |
a0d0e21e | 4433 | (void)SvNOK_only(sv); |
79072805 LW |
4434 | return; |
4435 | } | |
463ee0b2 | 4436 | d = SvPVX(sv); |
79072805 LW |
4437 | while (isALPHA(*d)) d++; |
4438 | while (isDIGIT(*d)) d++; | |
4439 | if (*d) { | |
097ee67d | 4440 | sv_setnv(sv,Atof(SvPVX(sv)) + 1.0); /* punt */ |
79072805 LW |
4441 | return; |
4442 | } | |
4443 | d--; | |
463ee0b2 | 4444 | while (d >= SvPVX(sv)) { |
79072805 LW |
4445 | if (isDIGIT(*d)) { |
4446 | if (++*d <= '9') | |
4447 | return; | |
4448 | *(d--) = '0'; | |
4449 | } | |
4450 | else { | |
9d116dd7 JH |
4451 | #ifdef EBCDIC |
4452 | /* MKS: The original code here died if letters weren't consecutive. | |
4453 | * at least it didn't have to worry about non-C locales. The | |
4454 | * new code assumes that ('z'-'a')==('Z'-'A'), letters are | |
4455 | * arranged in order (although not consecutively) and that only | |
4456 | * [A-Za-z] are accepted by isALPHA in the C locale. | |
4457 | */ | |
4458 | if (*d != 'z' && *d != 'Z') { | |
4459 | do { ++*d; } while (!isALPHA(*d)); | |
4460 | return; | |
4461 | } | |
4462 | *(d--) -= 'z' - 'a'; | |
4463 | #else | |
79072805 LW |
4464 | ++*d; |
4465 | if (isALPHA(*d)) | |
4466 | return; | |
4467 | *(d--) -= 'z' - 'a' + 1; | |
9d116dd7 | 4468 | #endif |
79072805 LW |
4469 | } |
4470 | } | |
4471 | /* oh,oh, the number grew */ | |
4472 | SvGROW(sv, SvCUR(sv) + 2); | |
4473 | SvCUR(sv)++; | |
463ee0b2 | 4474 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
4475 | *d = d[-1]; |
4476 | if (isDIGIT(d[1])) | |
4477 | *d = '1'; | |
4478 | else | |
4479 | *d = d[1]; | |
4480 | } | |
4481 | ||
954c1994 GS |
4482 | /* |
4483 | =for apidoc sv_dec | |
4484 | ||
4485 | Auto-decrement of the value in the SV. | |
4486 | ||
4487 | =cut | |
4488 | */ | |
4489 | ||
79072805 | 4490 | void |
864dbfa3 | 4491 | Perl_sv_dec(pTHX_ register SV *sv) |
79072805 | 4492 | { |
463ee0b2 LW |
4493 | int flags; |
4494 | ||
79072805 LW |
4495 | if (!sv) |
4496 | return; | |
b23a5f78 GB |
4497 | if (SvGMAGICAL(sv)) |
4498 | mg_get(sv); | |
ed6116ce | 4499 | if (SvTHINKFIRST(sv)) { |
0f15f207 MB |
4500 | if (SvREADONLY(sv)) { |
4501 | dTHR; | |
3280af22 | 4502 | if (PL_curcop != &PL_compiling) |
cea2e8a9 | 4503 | Perl_croak(aTHX_ PL_no_modify); |
0f15f207 | 4504 | } |
a0d0e21e | 4505 | if (SvROK(sv)) { |
b5be31e9 | 4506 | IV i; |
9e7bc3e8 JD |
4507 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) |
4508 | return; | |
56431972 | 4509 | i = PTR2IV(SvRV(sv)); |
b5be31e9 SM |
4510 | sv_unref(sv); |
4511 | sv_setiv(sv, i); | |
a0d0e21e | 4512 | } |
ed6116ce | 4513 | } |
8990e307 | 4514 | flags = SvFLAGS(sv); |
8990e307 | 4515 | if (flags & SVp_NOK) { |
463ee0b2 | 4516 | SvNVX(sv) -= 1.0; |
a0d0e21e | 4517 | (void)SvNOK_only(sv); |
79072805 LW |
4518 | return; |
4519 | } | |
55497cff | 4520 | if (flags & SVp_IOK) { |
25da4f38 IZ |
4521 | if (SvIsUV(sv)) { |
4522 | if (SvUVX(sv) == 0) { | |
4523 | (void)SvIOK_only(sv); | |
4524 | SvIVX(sv) = -1; | |
4525 | } | |
4526 | else { | |
4527 | (void)SvIOK_only_UV(sv); | |
4528 | --SvUVX(sv); | |
4529 | } | |
4530 | } else { | |
4531 | if (SvIVX(sv) == IV_MIN) | |
65202027 | 4532 | sv_setnv(sv, (NV)IV_MIN - 1.0); |
25da4f38 IZ |
4533 | else { |
4534 | (void)SvIOK_only(sv); | |
4535 | --SvIVX(sv); | |
4536 | } | |
55497cff | 4537 | } |
4538 | return; | |
4539 | } | |
8990e307 | 4540 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
4541 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
4542 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 4543 | SvNVX(sv) = -1.0; |
a0d0e21e | 4544 | (void)SvNOK_only(sv); |
79072805 LW |
4545 | return; |
4546 | } | |
097ee67d | 4547 | sv_setnv(sv,Atof(SvPVX(sv)) - 1.0); /* punt */ |
79072805 LW |
4548 | } |
4549 | ||
954c1994 GS |
4550 | /* |
4551 | =for apidoc sv_mortalcopy | |
4552 | ||
4553 | Creates a new SV which is a copy of the original SV. The new SV is marked | |
4554 | as mortal. | |
4555 | ||
4556 | =cut | |
4557 | */ | |
4558 | ||
79072805 LW |
4559 | /* Make a string that will exist for the duration of the expression |
4560 | * evaluation. Actually, it may have to last longer than that, but | |
4561 | * hopefully we won't free it until it has been assigned to a | |
4562 | * permanent location. */ | |
4563 | ||
4564 | SV * | |
864dbfa3 | 4565 | Perl_sv_mortalcopy(pTHX_ SV *oldstr) |
79072805 | 4566 | { |
11343788 | 4567 | dTHR; |
463ee0b2 | 4568 | register SV *sv; |
79072805 | 4569 | |
4561caa4 | 4570 | new_SV(sv); |
79072805 | 4571 | sv_setsv(sv,oldstr); |
677b06e3 GS |
4572 | EXTEND_MORTAL(1); |
4573 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 LW |
4574 | SvTEMP_on(sv); |
4575 | return sv; | |
4576 | } | |
4577 | ||
954c1994 GS |
4578 | /* |
4579 | =for apidoc sv_newmortal | |
4580 | ||
4581 | Creates a new SV which is mortal. The reference count of the SV is set to 1. | |
4582 | ||
4583 | =cut | |
4584 | */ | |
4585 | ||
8990e307 | 4586 | SV * |
864dbfa3 | 4587 | Perl_sv_newmortal(pTHX) |
8990e307 | 4588 | { |
11343788 | 4589 | dTHR; |
8990e307 LW |
4590 | register SV *sv; |
4591 | ||
4561caa4 | 4592 | new_SV(sv); |
8990e307 | 4593 | SvFLAGS(sv) = SVs_TEMP; |
677b06e3 GS |
4594 | EXTEND_MORTAL(1); |
4595 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
79072805 LW |
4596 | return sv; |
4597 | } | |
4598 | ||
954c1994 GS |
4599 | /* |
4600 | =for apidoc sv_2mortal | |
4601 | ||
4602 | Marks an SV as mortal. The SV will be destroyed when the current context | |
4603 | ends. | |
4604 | ||
4605 | =cut | |
4606 | */ | |
4607 | ||
79072805 LW |
4608 | /* same thing without the copying */ |
4609 | ||
4610 | SV * | |
864dbfa3 | 4611 | Perl_sv_2mortal(pTHX_ register SV *sv) |
79072805 | 4612 | { |
11343788 | 4613 | dTHR; |
79072805 LW |
4614 | if (!sv) |
4615 | return sv; | |
d689ffdd | 4616 | if (SvREADONLY(sv) && SvIMMORTAL(sv)) |
11162842 | 4617 | return sv; |
677b06e3 GS |
4618 | EXTEND_MORTAL(1); |
4619 | PL_tmps_stack[++PL_tmps_ix] = sv; | |
8990e307 | 4620 | SvTEMP_on(sv); |
79072805 LW |
4621 | return sv; |
4622 | } | |
4623 | ||
954c1994 GS |
4624 | /* |
4625 | =for apidoc newSVpv | |
4626 | ||
4627 | Creates a new SV and copies a string into it. The reference count for the | |
4628 | SV is set to 1. If C<len> is zero, Perl will compute the length using | |
4629 | strlen(). For efficiency, consider using C<newSVpvn> instead. | |
4630 | ||
4631 | =cut | |
4632 | */ | |
4633 | ||
79072805 | 4634 | SV * |
864dbfa3 | 4635 | Perl_newSVpv(pTHX_ const char *s, STRLEN len) |
79072805 | 4636 | { |
463ee0b2 | 4637 | register SV *sv; |
79072805 | 4638 | |
4561caa4 | 4639 | new_SV(sv); |
79072805 LW |
4640 | if (!len) |
4641 | len = strlen(s); | |
4642 | sv_setpvn(sv,s,len); | |
4643 | return sv; | |
4644 | } | |
4645 | ||
954c1994 GS |
4646 | /* |
4647 | =for apidoc newSVpvn | |
4648 | ||
4649 | Creates a new SV and copies a string into it. The reference count for the | |
4650 | SV is set to 1. Note that if C<len> is zero, Perl will create a zero length | |
4651 | string. You are responsible for ensuring that the source string is at least | |
4652 | C<len> bytes long. | |
4653 | ||
4654 | =cut | |
4655 | */ | |
4656 | ||
9da1e3b5 | 4657 | SV * |
864dbfa3 | 4658 | Perl_newSVpvn(pTHX_ const char *s, STRLEN len) |
9da1e3b5 MUN |
4659 | { |
4660 | register SV *sv; | |
4661 | ||
4662 | new_SV(sv); | |
9da1e3b5 MUN |
4663 | sv_setpvn(sv,s,len); |
4664 | return sv; | |
4665 | } | |
4666 | ||
cea2e8a9 | 4667 | #if defined(PERL_IMPLICIT_CONTEXT) |
46fc3d4c | 4668 | SV * |
cea2e8a9 | 4669 | Perl_newSVpvf_nocontext(const char* pat, ...) |
46fc3d4c | 4670 | { |
cea2e8a9 | 4671 | dTHX; |
46fc3d4c | 4672 | register SV *sv; |
4673 | va_list args; | |
46fc3d4c | 4674 | va_start(args, pat); |
c5be433b | 4675 | sv = vnewSVpvf(pat, &args); |
46fc3d4c | 4676 | va_end(args); |
4677 | return sv; | |
4678 | } | |
cea2e8a9 | 4679 | #endif |
46fc3d4c | 4680 | |
954c1994 GS |
4681 | /* |
4682 | =for apidoc newSVpvf | |
4683 | ||
4684 | Creates a new SV an initialize it with the string formatted like | |
4685 | C<sprintf>. | |
4686 | ||
4687 | =cut | |
4688 | */ | |
4689 | ||
cea2e8a9 GS |
4690 | SV * |
4691 | Perl_newSVpvf(pTHX_ const char* pat, ...) | |
4692 | { | |
4693 | register SV *sv; | |
4694 | va_list args; | |
cea2e8a9 | 4695 | va_start(args, pat); |
c5be433b | 4696 | sv = vnewSVpvf(pat, &args); |
cea2e8a9 GS |
4697 | va_end(args); |
4698 | return sv; | |
4699 | } | |
46fc3d4c | 4700 | |
79072805 | 4701 | SV * |
c5be433b GS |
4702 | Perl_vnewSVpvf(pTHX_ const char* pat, va_list* args) |
4703 | { | |
4704 | register SV *sv; | |
4705 | new_SV(sv); | |
4706 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
4707 | return sv; | |
4708 | } | |
4709 | ||
954c1994 GS |
4710 | /* |
4711 | =for apidoc newSVnv | |
4712 | ||
4713 | Creates a new SV and copies a floating point value into it. | |
4714 | The reference count for the SV is set to 1. | |
4715 | ||
4716 | =cut | |
4717 | */ | |
4718 | ||
c5be433b | 4719 | SV * |
65202027 | 4720 | Perl_newSVnv(pTHX_ NV n) |
79072805 | 4721 | { |
463ee0b2 | 4722 | register SV *sv; |
79072805 | 4723 | |
4561caa4 | 4724 | new_SV(sv); |
79072805 LW |
4725 | sv_setnv(sv,n); |
4726 | return sv; | |
4727 | } | |
4728 | ||
954c1994 GS |
4729 | /* |
4730 | =for apidoc newSViv | |
4731 | ||
4732 | Creates a new SV and copies an integer into it. The reference count for the | |
4733 | SV is set to 1. | |
4734 | ||
4735 | =cut | |
4736 | */ | |
4737 | ||
79072805 | 4738 | SV * |
864dbfa3 | 4739 | Perl_newSViv(pTHX_ IV i) |
79072805 | 4740 | { |
463ee0b2 | 4741 | register SV *sv; |
79072805 | 4742 | |
4561caa4 | 4743 | new_SV(sv); |
79072805 LW |
4744 | sv_setiv(sv,i); |
4745 | return sv; | |
4746 | } | |
4747 | ||
954c1994 GS |
4748 | /* |
4749 | =for apidoc newRV_noinc | |
4750 | ||
4751 | Creates an RV wrapper for an SV. The reference count for the original | |
4752 | SV is B<not> incremented. | |
4753 | ||
4754 | =cut | |
4755 | */ | |
4756 | ||
2304df62 | 4757 | SV * |
864dbfa3 | 4758 | Perl_newRV_noinc(pTHX_ SV *tmpRef) |
2304df62 | 4759 | { |
11343788 | 4760 | dTHR; |
2304df62 AD |
4761 | register SV *sv; |
4762 | ||
4561caa4 | 4763 | new_SV(sv); |
2304df62 | 4764 | sv_upgrade(sv, SVt_RV); |
76e3520e | 4765 | SvTEMP_off(tmpRef); |
d689ffdd | 4766 | SvRV(sv) = tmpRef; |
2304df62 | 4767 | SvROK_on(sv); |
2304df62 AD |
4768 | return sv; |
4769 | } | |
4770 | ||
954c1994 | 4771 | /* newRV_inc is #defined to newRV in sv.h */ |
5f05dabc | 4772 | SV * |
864dbfa3 | 4773 | Perl_newRV(pTHX_ SV *tmpRef) |
5f05dabc | 4774 | { |
5f6447b6 | 4775 | return newRV_noinc(SvREFCNT_inc(tmpRef)); |
5f05dabc | 4776 | } |
5f05dabc | 4777 | |
954c1994 GS |
4778 | /* |
4779 | =for apidoc newSVsv | |
4780 | ||
4781 | Creates a new SV which is an exact duplicate of the original SV. | |
4782 | ||
4783 | =cut | |
4784 | */ | |
4785 | ||
79072805 LW |
4786 | /* make an exact duplicate of old */ |
4787 | ||
4788 | SV * | |
864dbfa3 | 4789 | Perl_newSVsv(pTHX_ register SV *old) |
79072805 | 4790 | { |
0453d815 | 4791 | dTHR; |
463ee0b2 | 4792 | register SV *sv; |
79072805 LW |
4793 | |
4794 | if (!old) | |
4795 | return Nullsv; | |
8990e307 | 4796 | if (SvTYPE(old) == SVTYPEMASK) { |
0453d815 PM |
4797 | if (ckWARN_d(WARN_INTERNAL)) |
4798 | Perl_warner(aTHX_ WARN_INTERNAL, "semi-panic: attempt to dup freed string"); | |
79072805 LW |
4799 | return Nullsv; |
4800 | } | |
4561caa4 | 4801 | new_SV(sv); |
ff68c719 | 4802 | if (SvTEMP(old)) { |
4803 | SvTEMP_off(old); | |
463ee0b2 | 4804 | sv_setsv(sv,old); |
ff68c719 | 4805 | SvTEMP_on(old); |
79072805 LW |
4806 | } |
4807 | else | |
463ee0b2 LW |
4808 | sv_setsv(sv,old); |
4809 | return sv; | |
79072805 LW |
4810 | } |
4811 | ||
4812 | void | |
864dbfa3 | 4813 | Perl_sv_reset(pTHX_ register char *s, HV *stash) |
79072805 LW |
4814 | { |
4815 | register HE *entry; | |
4816 | register GV *gv; | |
4817 | register SV *sv; | |
4818 | register I32 i; | |
4819 | register PMOP *pm; | |
4820 | register I32 max; | |
4802d5d7 | 4821 | char todo[PERL_UCHAR_MAX+1]; |
79072805 | 4822 | |
49d8d3a1 MB |
4823 | if (!stash) |
4824 | return; | |
4825 | ||
79072805 LW |
4826 | if (!*s) { /* reset ?? searches */ |
4827 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
48c036b1 | 4828 | pm->op_pmdynflags &= ~PMdf_USED; |
79072805 LW |
4829 | } |
4830 | return; | |
4831 | } | |
4832 | ||
4833 | /* reset variables */ | |
4834 | ||
4835 | if (!HvARRAY(stash)) | |
4836 | return; | |
463ee0b2 LW |
4837 | |
4838 | Zero(todo, 256, char); | |
79072805 | 4839 | while (*s) { |
4802d5d7 | 4840 | i = (unsigned char)*s; |
79072805 LW |
4841 | if (s[1] == '-') { |
4842 | s += 2; | |
4843 | } | |
4802d5d7 | 4844 | max = (unsigned char)*s++; |
79072805 | 4845 | for ( ; i <= max; i++) { |
463ee0b2 LW |
4846 | todo[i] = 1; |
4847 | } | |
a0d0e21e | 4848 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 | 4849 | for (entry = HvARRAY(stash)[i]; |
9e35f4b3 GS |
4850 | entry; |
4851 | entry = HeNEXT(entry)) | |
4852 | { | |
1edc1566 | 4853 | if (!todo[(U8)*HeKEY(entry)]) |
463ee0b2 | 4854 | continue; |
1edc1566 | 4855 | gv = (GV*)HeVAL(entry); |
79072805 | 4856 | sv = GvSV(gv); |
9e35f4b3 GS |
4857 | if (SvTHINKFIRST(sv)) { |
4858 | if (!SvREADONLY(sv) && SvROK(sv)) | |
4859 | sv_unref(sv); | |
4860 | continue; | |
4861 | } | |
a0d0e21e | 4862 | (void)SvOK_off(sv); |
79072805 LW |
4863 | if (SvTYPE(sv) >= SVt_PV) { |
4864 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
4865 | if (SvPVX(sv) != Nullch) |
4866 | *SvPVX(sv) = '\0'; | |
44a8e56a | 4867 | SvTAINT(sv); |
79072805 LW |
4868 | } |
4869 | if (GvAV(gv)) { | |
4870 | av_clear(GvAV(gv)); | |
4871 | } | |
44a8e56a | 4872 | if (GvHV(gv) && !HvNAME(GvHV(gv))) { |
463ee0b2 | 4873 | hv_clear(GvHV(gv)); |
a0d0e21e | 4874 | #ifndef VMS /* VMS has no environ array */ |
3280af22 | 4875 | if (gv == PL_envgv) |
79072805 | 4876 | environ[0] = Nullch; |
a0d0e21e | 4877 | #endif |
79072805 LW |
4878 | } |
4879 | } | |
4880 | } | |
4881 | } | |
4882 | } | |
4883 | ||
46fc3d4c | 4884 | IO* |
864dbfa3 | 4885 | Perl_sv_2io(pTHX_ SV *sv) |
46fc3d4c | 4886 | { |
4887 | IO* io; | |
4888 | GV* gv; | |
2d8e6c8d | 4889 | STRLEN n_a; |
46fc3d4c | 4890 | |
4891 | switch (SvTYPE(sv)) { | |
4892 | case SVt_PVIO: | |
4893 | io = (IO*)sv; | |
4894 | break; | |
4895 | case SVt_PVGV: | |
4896 | gv = (GV*)sv; | |
4897 | io = GvIO(gv); | |
4898 | if (!io) | |
cea2e8a9 | 4899 | Perl_croak(aTHX_ "Bad filehandle: %s", GvNAME(gv)); |
46fc3d4c | 4900 | break; |
4901 | default: | |
4902 | if (!SvOK(sv)) | |
cea2e8a9 | 4903 | Perl_croak(aTHX_ PL_no_usym, "filehandle"); |
46fc3d4c | 4904 | if (SvROK(sv)) |
4905 | return sv_2io(SvRV(sv)); | |
2d8e6c8d | 4906 | gv = gv_fetchpv(SvPV(sv,n_a), FALSE, SVt_PVIO); |
46fc3d4c | 4907 | if (gv) |
4908 | io = GvIO(gv); | |
4909 | else | |
4910 | io = 0; | |
4911 | if (!io) | |
cea2e8a9 | 4912 | Perl_croak(aTHX_ "Bad filehandle: %s", SvPV(sv,n_a)); |
46fc3d4c | 4913 | break; |
4914 | } | |
4915 | return io; | |
4916 | } | |
4917 | ||
79072805 | 4918 | CV * |
864dbfa3 | 4919 | Perl_sv_2cv(pTHX_ SV *sv, HV **st, GV **gvp, I32 lref) |
79072805 LW |
4920 | { |
4921 | GV *gv; | |
4922 | CV *cv; | |
2d8e6c8d | 4923 | STRLEN n_a; |
79072805 LW |
4924 | |
4925 | if (!sv) | |
93a17b20 | 4926 | return *gvp = Nullgv, Nullcv; |
79072805 | 4927 | switch (SvTYPE(sv)) { |
79072805 LW |
4928 | case SVt_PVCV: |
4929 | *st = CvSTASH(sv); | |
4930 | *gvp = Nullgv; | |
4931 | return (CV*)sv; | |
4932 | case SVt_PVHV: | |
4933 | case SVt_PVAV: | |
4934 | *gvp = Nullgv; | |
4935 | return Nullcv; | |
8990e307 LW |
4936 | case SVt_PVGV: |
4937 | gv = (GV*)sv; | |
a0d0e21e | 4938 | *gvp = gv; |
8990e307 LW |
4939 | *st = GvESTASH(gv); |
4940 | goto fix_gv; | |
4941 | ||
79072805 | 4942 | default: |
a0d0e21e LW |
4943 | if (SvGMAGICAL(sv)) |
4944 | mg_get(sv); | |
4945 | if (SvROK(sv)) { | |
0f4592ef | 4946 | dTHR; |
f5284f61 IZ |
4947 | SV **sp = &sv; /* Used in tryAMAGICunDEREF macro. */ |
4948 | tryAMAGICunDEREF(to_cv); | |
4949 | ||
62f274bf GS |
4950 | sv = SvRV(sv); |
4951 | if (SvTYPE(sv) == SVt_PVCV) { | |
4952 | cv = (CV*)sv; | |
4953 | *gvp = Nullgv; | |
4954 | *st = CvSTASH(cv); | |
4955 | return cv; | |
4956 | } | |
4957 | else if(isGV(sv)) | |
4958 | gv = (GV*)sv; | |
4959 | else | |
cea2e8a9 | 4960 | Perl_croak(aTHX_ "Not a subroutine reference"); |
a0d0e21e | 4961 | } |
62f274bf | 4962 | else if (isGV(sv)) |
79072805 LW |
4963 | gv = (GV*)sv; |
4964 | else | |
2d8e6c8d | 4965 | gv = gv_fetchpv(SvPV(sv, n_a), lref, SVt_PVCV); |
79072805 LW |
4966 | *gvp = gv; |
4967 | if (!gv) | |
4968 | return Nullcv; | |
4969 | *st = GvESTASH(gv); | |
8990e307 | 4970 | fix_gv: |
8ebc5c01 | 4971 | if (lref && !GvCVu(gv)) { |
4633a7c4 | 4972 | SV *tmpsv; |
748a9306 | 4973 | ENTER; |
4633a7c4 | 4974 | tmpsv = NEWSV(704,0); |
16660edb | 4975 | gv_efullname3(tmpsv, gv, Nullch); |
f6ec51f7 GS |
4976 | /* XXX this is probably not what they think they're getting. |
4977 | * It has the same effect as "sub name;", i.e. just a forward | |
4978 | * declaration! */ | |
774d564b | 4979 | newSUB(start_subparse(FALSE, 0), |
4633a7c4 LW |
4980 | newSVOP(OP_CONST, 0, tmpsv), |
4981 | Nullop, | |
8990e307 | 4982 | Nullop); |
748a9306 | 4983 | LEAVE; |
8ebc5c01 | 4984 | if (!GvCVu(gv)) |
cea2e8a9 | 4985 | Perl_croak(aTHX_ "Unable to create sub named \"%s\"", SvPV(sv,n_a)); |
8990e307 | 4986 | } |
8ebc5c01 | 4987 | return GvCVu(gv); |
79072805 LW |
4988 | } |
4989 | } | |
4990 | ||
79072805 | 4991 | I32 |
864dbfa3 | 4992 | Perl_sv_true(pTHX_ register SV *sv) |
79072805 | 4993 | { |
4e35701f | 4994 | dTHR; |
8990e307 LW |
4995 | if (!sv) |
4996 | return 0; | |
79072805 | 4997 | if (SvPOK(sv)) { |
4e35701f NIS |
4998 | register XPV* tXpv; |
4999 | if ((tXpv = (XPV*)SvANY(sv)) && | |
c2f1de04 | 5000 | (tXpv->xpv_cur > 1 || |
4e35701f | 5001 | (tXpv->xpv_cur && *tXpv->xpv_pv != '0'))) |
79072805 LW |
5002 | return 1; |
5003 | else | |
5004 | return 0; | |
5005 | } | |
5006 | else { | |
5007 | if (SvIOK(sv)) | |
463ee0b2 | 5008 | return SvIVX(sv) != 0; |
79072805 LW |
5009 | else { |
5010 | if (SvNOK(sv)) | |
463ee0b2 | 5011 | return SvNVX(sv) != 0.0; |
79072805 | 5012 | else |
463ee0b2 | 5013 | return sv_2bool(sv); |
79072805 LW |
5014 | } |
5015 | } | |
5016 | } | |
79072805 | 5017 | |
ff68c719 | 5018 | IV |
864dbfa3 | 5019 | Perl_sv_iv(pTHX_ register SV *sv) |
85e6fe83 | 5020 | { |
25da4f38 IZ |
5021 | if (SvIOK(sv)) { |
5022 | if (SvIsUV(sv)) | |
5023 | return (IV)SvUVX(sv); | |
ff68c719 | 5024 | return SvIVX(sv); |
25da4f38 | 5025 | } |
ff68c719 | 5026 | return sv_2iv(sv); |
85e6fe83 | 5027 | } |
85e6fe83 | 5028 | |
ff68c719 | 5029 | UV |
864dbfa3 | 5030 | Perl_sv_uv(pTHX_ register SV *sv) |
ff68c719 | 5031 | { |
25da4f38 IZ |
5032 | if (SvIOK(sv)) { |
5033 | if (SvIsUV(sv)) | |
5034 | return SvUVX(sv); | |
5035 | return (UV)SvIVX(sv); | |
5036 | } | |
ff68c719 | 5037 | return sv_2uv(sv); |
5038 | } | |
85e6fe83 | 5039 | |
65202027 | 5040 | NV |
864dbfa3 | 5041 | Perl_sv_nv(pTHX_ register SV *sv) |
79072805 | 5042 | { |
ff68c719 | 5043 | if (SvNOK(sv)) |
5044 | return SvNVX(sv); | |
5045 | return sv_2nv(sv); | |
79072805 | 5046 | } |
79072805 | 5047 | |
79072805 | 5048 | char * |
864dbfa3 | 5049 | Perl_sv_pv(pTHX_ SV *sv) |
1fa8b10d JD |
5050 | { |
5051 | STRLEN n_a; | |
5052 | ||
5053 | if (SvPOK(sv)) | |
5054 | return SvPVX(sv); | |
5055 | ||
5056 | return sv_2pv(sv, &n_a); | |
5057 | } | |
5058 | ||
5059 | char * | |
864dbfa3 | 5060 | Perl_sv_pvn(pTHX_ SV *sv, STRLEN *lp) |
79072805 | 5061 | { |
85e6fe83 LW |
5062 | if (SvPOK(sv)) { |
5063 | *lp = SvCUR(sv); | |
a0d0e21e | 5064 | return SvPVX(sv); |
85e6fe83 | 5065 | } |
463ee0b2 | 5066 | return sv_2pv(sv, lp); |
79072805 | 5067 | } |
79072805 | 5068 | |
a0d0e21e | 5069 | char * |
864dbfa3 | 5070 | Perl_sv_pvn_force(pTHX_ SV *sv, STRLEN *lp) |
a0d0e21e LW |
5071 | { |
5072 | char *s; | |
5073 | ||
6fc92669 GS |
5074 | if (SvTHINKFIRST(sv) && !SvROK(sv)) |
5075 | sv_force_normal(sv); | |
a0d0e21e LW |
5076 | |
5077 | if (SvPOK(sv)) { | |
5078 | *lp = SvCUR(sv); | |
5079 | } | |
5080 | else { | |
748a9306 | 5081 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
6fc92669 | 5082 | dTHR; |
cea2e8a9 | 5083 | Perl_croak(aTHX_ "Can't coerce %s to string in %s", sv_reftype(sv,0), |
6fc92669 | 5084 | PL_op_name[PL_op->op_type]); |
a0d0e21e | 5085 | } |
4633a7c4 LW |
5086 | else |
5087 | s = sv_2pv(sv, lp); | |
a0d0e21e LW |
5088 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
5089 | STRLEN len = *lp; | |
5090 | ||
5091 | if (SvROK(sv)) | |
5092 | sv_unref(sv); | |
5093 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
5094 | SvGROW(sv, len + 1); | |
5095 | Move(s,SvPVX(sv),len,char); | |
5096 | SvCUR_set(sv, len); | |
5097 | *SvEND(sv) = '\0'; | |
5098 | } | |
5099 | if (!SvPOK(sv)) { | |
5100 | SvPOK_on(sv); /* validate pointer */ | |
5101 | SvTAINT(sv); | |
1d7c1841 GS |
5102 | DEBUG_c(PerlIO_printf(Perl_debug_log, "0x%"UVxf" 2pv(%s)\n", |
5103 | PTR2UV(sv),SvPVX(sv))); | |
a0d0e21e LW |
5104 | } |
5105 | } | |
5106 | return SvPVX(sv); | |
5107 | } | |
5108 | ||
5109 | char * | |
7340a771 GS |
5110 | Perl_sv_pvbyte(pTHX_ SV *sv) |
5111 | { | |
5112 | return sv_pv(sv); | |
5113 | } | |
5114 | ||
5115 | char * | |
5116 | Perl_sv_pvbyten(pTHX_ SV *sv, STRLEN *lp) | |
5117 | { | |
5118 | return sv_pvn(sv,lp); | |
5119 | } | |
5120 | ||
5121 | char * | |
5122 | Perl_sv_pvbyten_force(pTHX_ SV *sv, STRLEN *lp) | |
5123 | { | |
5124 | return sv_pvn_force(sv,lp); | |
5125 | } | |
5126 | ||
5127 | char * | |
5128 | Perl_sv_pvutf8(pTHX_ SV *sv) | |
5129 | { | |
560a288e | 5130 | sv_utf8_upgrade(sv); |
7340a771 GS |
5131 | return sv_pv(sv); |
5132 | } | |
5133 | ||
5134 | char * | |
5135 | Perl_sv_pvutf8n(pTHX_ SV *sv, STRLEN *lp) | |
5136 | { | |
560a288e | 5137 | sv_utf8_upgrade(sv); |
7340a771 GS |
5138 | return sv_pvn(sv,lp); |
5139 | } | |
5140 | ||
5141 | char * | |
5142 | Perl_sv_pvutf8n_force(pTHX_ SV *sv, STRLEN *lp) | |
5143 | { | |
560a288e | 5144 | sv_utf8_upgrade(sv); |
7340a771 GS |
5145 | return sv_pvn_force(sv,lp); |
5146 | } | |
5147 | ||
5148 | char * | |
864dbfa3 | 5149 | Perl_sv_reftype(pTHX_ SV *sv, int ob) |
a0d0e21e LW |
5150 | { |
5151 | if (ob && SvOBJECT(sv)) | |
5152 | return HvNAME(SvSTASH(sv)); | |
5153 | else { | |
5154 | switch (SvTYPE(sv)) { | |
5155 | case SVt_NULL: | |
5156 | case SVt_IV: | |
5157 | case SVt_NV: | |
5158 | case SVt_RV: | |
5159 | case SVt_PV: | |
5160 | case SVt_PVIV: | |
5161 | case SVt_PVNV: | |
5162 | case SVt_PVMG: | |
5163 | case SVt_PVBM: | |
5164 | if (SvROK(sv)) | |
5165 | return "REF"; | |
5166 | else | |
5167 | return "SCALAR"; | |
5168 | case SVt_PVLV: return "LVALUE"; | |
5169 | case SVt_PVAV: return "ARRAY"; | |
5170 | case SVt_PVHV: return "HASH"; | |
5171 | case SVt_PVCV: return "CODE"; | |
5172 | case SVt_PVGV: return "GLOB"; | |
1d2dff63 | 5173 | case SVt_PVFM: return "FORMAT"; |
a0d0e21e LW |
5174 | default: return "UNKNOWN"; |
5175 | } | |
5176 | } | |
5177 | } | |
5178 | ||
954c1994 GS |
5179 | /* |
5180 | =for apidoc sv_isobject | |
5181 | ||
5182 | Returns a boolean indicating whether the SV is an RV pointing to a blessed | |
5183 | object. If the SV is not an RV, or if the object is not blessed, then this | |
5184 | will return false. | |
5185 | ||
5186 | =cut | |
5187 | */ | |
5188 | ||
463ee0b2 | 5189 | int |
864dbfa3 | 5190 | Perl_sv_isobject(pTHX_ SV *sv) |
85e6fe83 | 5191 | { |
68dc0745 | 5192 | if (!sv) |
5193 | return 0; | |
5194 | if (SvGMAGICAL(sv)) | |
5195 | mg_get(sv); | |
85e6fe83 LW |
5196 | if (!SvROK(sv)) |
5197 | return 0; | |
5198 | sv = (SV*)SvRV(sv); | |
5199 | if (!SvOBJECT(sv)) | |
5200 | return 0; | |
5201 | return 1; | |
5202 | } | |
5203 | ||
954c1994 GS |
5204 | /* |
5205 | =for apidoc sv_isa | |
5206 | ||
5207 | Returns a boolean indicating whether the SV is blessed into the specified | |
5208 | class. This does not check for subtypes; use C<sv_derived_from> to verify | |
5209 | an inheritance relationship. | |
5210 | ||
5211 | =cut | |
5212 | */ | |
5213 | ||
85e6fe83 | 5214 | int |
864dbfa3 | 5215 | Perl_sv_isa(pTHX_ SV *sv, const char *name) |
463ee0b2 | 5216 | { |
68dc0745 | 5217 | if (!sv) |
5218 | return 0; | |
5219 | if (SvGMAGICAL(sv)) | |
5220 | mg_get(sv); | |
ed6116ce | 5221 | if (!SvROK(sv)) |
463ee0b2 | 5222 | return 0; |
ed6116ce LW |
5223 | sv = (SV*)SvRV(sv); |
5224 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
5225 | return 0; |
5226 | ||
5227 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
5228 | } | |
5229 | ||
954c1994 GS |
5230 | /* |
5231 | =for apidoc newSVrv | |
5232 | ||
5233 | Creates a new SV for the RV, C<rv>, to point to. If C<rv> is not an RV then | |
5234 | it will be upgraded to one. If C<classname> is non-null then the new SV will | |
5235 | be blessed in the specified package. The new SV is returned and its | |
5236 | reference count is 1. | |
5237 | ||
5238 | =cut | |
5239 | */ | |
5240 | ||
463ee0b2 | 5241 | SV* |
864dbfa3 | 5242 | Perl_newSVrv(pTHX_ SV *rv, const char *classname) |
463ee0b2 | 5243 | { |
11343788 | 5244 | dTHR; |
463ee0b2 LW |
5245 | SV *sv; |
5246 | ||
4561caa4 | 5247 | new_SV(sv); |
51cf62d8 | 5248 | |
2213622d | 5249 | SV_CHECK_THINKFIRST(rv); |
51cf62d8 | 5250 | SvAMAGIC_off(rv); |
51cf62d8 OT |
5251 | |
5252 | if (SvTYPE(rv) < SVt_RV) | |
5253 | sv_upgrade(rv, SVt_RV); | |
5254 | ||
5255 | (void)SvOK_off(rv); | |
053fc874 | 5256 | SvRV(rv) = sv; |
ed6116ce | 5257 | SvROK_on(rv); |
463ee0b2 | 5258 | |
a0d0e21e LW |
5259 | if (classname) { |
5260 | HV* stash = gv_stashpv(classname, TRUE); | |
5261 | (void)sv_bless(rv, stash); | |
5262 | } | |
5263 | return sv; | |
5264 | } | |
5265 | ||
954c1994 GS |
5266 | /* |
5267 | =for apidoc sv_setref_pv | |
5268 | ||
5269 | Copies a pointer into a new SV, optionally blessing the SV. The C<rv> | |
5270 | argument will be upgraded to an RV. That RV will be modified to point to | |
5271 | the new SV. If the C<pv> argument is NULL then C<PL_sv_undef> will be placed | |
5272 | into the SV. The C<classname> argument indicates the package for the | |
5273 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
5274 | will be returned and will have a reference count of 1. | |
5275 | ||
5276 | Do not use with other Perl types such as HV, AV, SV, CV, because those | |
5277 | objects will become corrupted by the pointer copy process. | |
5278 | ||
5279 | Note that C<sv_setref_pvn> copies the string while this copies the pointer. | |
5280 | ||
5281 | =cut | |
5282 | */ | |
5283 | ||
a0d0e21e | 5284 | SV* |
864dbfa3 | 5285 | Perl_sv_setref_pv(pTHX_ SV *rv, const char *classname, void *pv) |
a0d0e21e | 5286 | { |
189b2af5 | 5287 | if (!pv) { |
3280af22 | 5288 | sv_setsv(rv, &PL_sv_undef); |
189b2af5 GS |
5289 | SvSETMAGIC(rv); |
5290 | } | |
a0d0e21e | 5291 | else |
56431972 | 5292 | sv_setiv(newSVrv(rv,classname), PTR2IV(pv)); |
a0d0e21e LW |
5293 | return rv; |
5294 | } | |
5295 | ||
954c1994 GS |
5296 | /* |
5297 | =for apidoc sv_setref_iv | |
5298 | ||
5299 | Copies an integer into a new SV, optionally blessing the SV. The C<rv> | |
5300 | argument will be upgraded to an RV. That RV will be modified to point to | |
5301 | the new SV. The C<classname> argument indicates the package for the | |
5302 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
5303 | will be returned and will have a reference count of 1. | |
5304 | ||
5305 | =cut | |
5306 | */ | |
5307 | ||
a0d0e21e | 5308 | SV* |
864dbfa3 | 5309 | Perl_sv_setref_iv(pTHX_ SV *rv, const char *classname, IV iv) |
a0d0e21e LW |
5310 | { |
5311 | sv_setiv(newSVrv(rv,classname), iv); | |
5312 | return rv; | |
5313 | } | |
5314 | ||
954c1994 GS |
5315 | /* |
5316 | =for apidoc sv_setref_nv | |
5317 | ||
5318 | Copies a double into a new SV, optionally blessing the SV. The C<rv> | |
5319 | argument will be upgraded to an RV. That RV will be modified to point to | |
5320 | the new SV. The C<classname> argument indicates the package for the | |
5321 | blessing. Set C<classname> to C<Nullch> to avoid the blessing. The new SV | |
5322 | will be returned and will have a reference count of 1. | |
5323 | ||
5324 | =cut | |
5325 | */ | |
5326 | ||
a0d0e21e | 5327 | SV* |
65202027 | 5328 | Perl_sv_setref_nv(pTHX_ SV *rv, const char *classname, NV nv) |
a0d0e21e LW |
5329 | { |
5330 | sv_setnv(newSVrv(rv,classname), nv); | |
5331 | return rv; | |
5332 | } | |
463ee0b2 | 5333 | |
954c1994 GS |
5334 | /* |
5335 | =for apidoc sv_setref_pvn | |
5336 | ||
5337 | Copies a string into a new SV, optionally blessing the SV. The length of the | |
5338 | string must be specified with C<n>. The C<rv> argument will be upgraded to | |
5339 | an RV. That RV will be modified to point to the new SV. The C<classname> | |
5340 | argument indicates the package for the blessing. Set C<classname> to | |
5341 | C<Nullch> to avoid the blessing. The new SV will be returned and will have | |
5342 | a reference count of 1. | |
5343 | ||
5344 | Note that C<sv_setref_pv> copies the pointer while this copies the string. | |
5345 | ||
5346 | =cut | |
5347 | */ | |
5348 | ||
a0d0e21e | 5349 | SV* |
864dbfa3 | 5350 | Perl_sv_setref_pvn(pTHX_ SV *rv, const char *classname, char *pv, STRLEN n) |
a0d0e21e LW |
5351 | { |
5352 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
5353 | return rv; |
5354 | } | |
5355 | ||
954c1994 GS |
5356 | /* |
5357 | =for apidoc sv_bless | |
5358 | ||
5359 | Blesses an SV into a specified package. The SV must be an RV. The package | |
5360 | must be designated by its stash (see C<gv_stashpv()>). The reference count | |
5361 | of the SV is unaffected. | |
5362 | ||
5363 | =cut | |
5364 | */ | |
5365 | ||
a0d0e21e | 5366 | SV* |
864dbfa3 | 5367 | Perl_sv_bless(pTHX_ SV *sv, HV *stash) |
a0d0e21e | 5368 | { |
11343788 | 5369 | dTHR; |
76e3520e | 5370 | SV *tmpRef; |
a0d0e21e | 5371 | if (!SvROK(sv)) |
cea2e8a9 | 5372 | Perl_croak(aTHX_ "Can't bless non-reference value"); |
76e3520e GS |
5373 | tmpRef = SvRV(sv); |
5374 | if (SvFLAGS(tmpRef) & (SVs_OBJECT|SVf_READONLY)) { | |
5375 | if (SvREADONLY(tmpRef)) | |
cea2e8a9 | 5376 | Perl_croak(aTHX_ PL_no_modify); |
76e3520e GS |
5377 | if (SvOBJECT(tmpRef)) { |
5378 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 5379 | --PL_sv_objcount; |
76e3520e | 5380 | SvREFCNT_dec(SvSTASH(tmpRef)); |
2e3febc6 | 5381 | } |
a0d0e21e | 5382 | } |
76e3520e GS |
5383 | SvOBJECT_on(tmpRef); |
5384 | if (SvTYPE(tmpRef) != SVt_PVIO) | |
3280af22 | 5385 | ++PL_sv_objcount; |
76e3520e GS |
5386 | (void)SvUPGRADE(tmpRef, SVt_PVMG); |
5387 | SvSTASH(tmpRef) = (HV*)SvREFCNT_inc(stash); | |
a0d0e21e | 5388 | |
2e3febc6 CS |
5389 | if (Gv_AMG(stash)) |
5390 | SvAMAGIC_on(sv); | |
5391 | else | |
5392 | SvAMAGIC_off(sv); | |
a0d0e21e LW |
5393 | |
5394 | return sv; | |
5395 | } | |
5396 | ||
76e3520e | 5397 | STATIC void |
cea2e8a9 | 5398 | S_sv_unglob(pTHX_ SV *sv) |
a0d0e21e | 5399 | { |
850fabdf GS |
5400 | void *xpvmg; |
5401 | ||
a0d0e21e LW |
5402 | assert(SvTYPE(sv) == SVt_PVGV); |
5403 | SvFAKE_off(sv); | |
5404 | if (GvGP(sv)) | |
1edc1566 | 5405 | gp_free((GV*)sv); |
e826b3c7 GS |
5406 | if (GvSTASH(sv)) { |
5407 | SvREFCNT_dec(GvSTASH(sv)); | |
5408 | GvSTASH(sv) = Nullhv; | |
5409 | } | |
a0d0e21e LW |
5410 | sv_unmagic(sv, '*'); |
5411 | Safefree(GvNAME(sv)); | |
a5f75d66 | 5412 | GvMULTI_off(sv); |
850fabdf GS |
5413 | |
5414 | /* need to keep SvANY(sv) in the right arena */ | |
5415 | xpvmg = new_XPVMG(); | |
5416 | StructCopy(SvANY(sv), xpvmg, XPVMG); | |
5417 | del_XPVGV(SvANY(sv)); | |
5418 | SvANY(sv) = xpvmg; | |
5419 | ||
a0d0e21e LW |
5420 | SvFLAGS(sv) &= ~SVTYPEMASK; |
5421 | SvFLAGS(sv) |= SVt_PVMG; | |
5422 | } | |
5423 | ||
954c1994 GS |
5424 | /* |
5425 | =for apidoc sv_unref | |
5426 | ||
5427 | Unsets the RV status of the SV, and decrements the reference count of | |
5428 | whatever was being referenced by the RV. This can almost be thought of | |
5429 | as a reversal of C<newSVrv>. See C<SvROK_off>. | |
5430 | ||
5431 | =cut | |
5432 | */ | |
5433 | ||
ed6116ce | 5434 | void |
864dbfa3 | 5435 | Perl_sv_unref(pTHX_ SV *sv) |
ed6116ce | 5436 | { |
a0d0e21e | 5437 | SV* rv = SvRV(sv); |
810b8aa5 GS |
5438 | |
5439 | if (SvWEAKREF(sv)) { | |
5440 | sv_del_backref(sv); | |
5441 | SvWEAKREF_off(sv); | |
5442 | SvRV(sv) = 0; | |
5443 | return; | |
5444 | } | |
ed6116ce LW |
5445 | SvRV(sv) = 0; |
5446 | SvROK_off(sv); | |
4633a7c4 LW |
5447 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv)) |
5448 | SvREFCNT_dec(rv); | |
8e07c86e | 5449 | else |
4633a7c4 | 5450 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 5451 | } |
8990e307 | 5452 | |
bbce6d69 | 5453 | void |
864dbfa3 | 5454 | Perl_sv_taint(pTHX_ SV *sv) |
bbce6d69 | 5455 | { |
5456 | sv_magic((sv), Nullsv, 't', Nullch, 0); | |
5457 | } | |
5458 | ||
5459 | void | |
864dbfa3 | 5460 | Perl_sv_untaint(pTHX_ SV *sv) |
bbce6d69 | 5461 | { |
13f57bf8 | 5462 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
36477c24 | 5463 | MAGIC *mg = mg_find(sv, 't'); |
5464 | if (mg) | |
565764a8 | 5465 | mg->mg_len &= ~1; |
36477c24 | 5466 | } |
bbce6d69 | 5467 | } |
5468 | ||
5469 | bool | |
864dbfa3 | 5470 | Perl_sv_tainted(pTHX_ SV *sv) |
bbce6d69 | 5471 | { |
13f57bf8 | 5472 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) { |
36477c24 | 5473 | MAGIC *mg = mg_find(sv, 't'); |
565764a8 | 5474 | if (mg && ((mg->mg_len & 1) || (mg->mg_len & 2) && mg->mg_obj == sv)) |
36477c24 | 5475 | return TRUE; |
5476 | } | |
5477 | return FALSE; | |
bbce6d69 | 5478 | } |
5479 | ||
954c1994 GS |
5480 | /* |
5481 | =for apidoc sv_setpviv | |
5482 | ||
5483 | Copies an integer into the given SV, also updating its string value. | |
5484 | Does not handle 'set' magic. See C<sv_setpviv_mg>. | |
5485 | ||
5486 | =cut | |
5487 | */ | |
5488 | ||
84902520 | 5489 | void |
864dbfa3 | 5490 | Perl_sv_setpviv(pTHX_ SV *sv, IV iv) |
84902520 | 5491 | { |
25da4f38 IZ |
5492 | char buf[TYPE_CHARS(UV)]; |
5493 | char *ebuf; | |
5494 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
84902520 | 5495 | |
25da4f38 | 5496 | sv_setpvn(sv, ptr, ebuf - ptr); |
84902520 TB |
5497 | } |
5498 | ||
ef50df4b | 5499 | |
954c1994 GS |
5500 | /* |
5501 | =for apidoc sv_setpviv_mg | |
5502 | ||
5503 | Like C<sv_setpviv>, but also handles 'set' magic. | |
5504 | ||
5505 | =cut | |
5506 | */ | |
5507 | ||
ef50df4b | 5508 | void |
864dbfa3 | 5509 | Perl_sv_setpviv_mg(pTHX_ SV *sv, IV iv) |
ef50df4b | 5510 | { |
25da4f38 IZ |
5511 | char buf[TYPE_CHARS(UV)]; |
5512 | char *ebuf; | |
5513 | char *ptr = uiv_2buf(buf, iv, 0, 0, &ebuf); | |
5514 | ||
5515 | sv_setpvn(sv, ptr, ebuf - ptr); | |
ef50df4b GS |
5516 | SvSETMAGIC(sv); |
5517 | } | |
5518 | ||
cea2e8a9 GS |
5519 | #if defined(PERL_IMPLICIT_CONTEXT) |
5520 | void | |
5521 | Perl_sv_setpvf_nocontext(SV *sv, const char* pat, ...) | |
5522 | { | |
5523 | dTHX; | |
5524 | va_list args; | |
5525 | va_start(args, pat); | |
c5be433b | 5526 | sv_vsetpvf(sv, pat, &args); |
cea2e8a9 GS |
5527 | va_end(args); |
5528 | } | |
5529 | ||
5530 | ||
5531 | void | |
5532 | Perl_sv_setpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
5533 | { | |
5534 | dTHX; | |
5535 | va_list args; | |
5536 | va_start(args, pat); | |
c5be433b | 5537 | sv_vsetpvf_mg(sv, pat, &args); |
cea2e8a9 | 5538 | va_end(args); |
cea2e8a9 GS |
5539 | } |
5540 | #endif | |
5541 | ||
954c1994 GS |
5542 | /* |
5543 | =for apidoc sv_setpvf | |
5544 | ||
5545 | Processes its arguments like C<sprintf> and sets an SV to the formatted | |
5546 | output. Does not handle 'set' magic. See C<sv_setpvf_mg>. | |
5547 | ||
5548 | =cut | |
5549 | */ | |
5550 | ||
46fc3d4c | 5551 | void |
864dbfa3 | 5552 | Perl_sv_setpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 5553 | { |
5554 | va_list args; | |
46fc3d4c | 5555 | va_start(args, pat); |
c5be433b | 5556 | sv_vsetpvf(sv, pat, &args); |
46fc3d4c | 5557 | va_end(args); |
5558 | } | |
5559 | ||
c5be433b GS |
5560 | void |
5561 | Perl_sv_vsetpvf(pTHX_ SV *sv, const char* pat, va_list* args) | |
5562 | { | |
5563 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
5564 | } | |
ef50df4b | 5565 | |
954c1994 GS |
5566 | /* |
5567 | =for apidoc sv_setpvf_mg | |
5568 | ||
5569 | Like C<sv_setpvf>, but also handles 'set' magic. | |
5570 | ||
5571 | =cut | |
5572 | */ | |
5573 | ||
ef50df4b | 5574 | void |
864dbfa3 | 5575 | Perl_sv_setpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
5576 | { |
5577 | va_list args; | |
ef50df4b | 5578 | va_start(args, pat); |
c5be433b | 5579 | sv_vsetpvf_mg(sv, pat, &args); |
ef50df4b | 5580 | va_end(args); |
c5be433b GS |
5581 | } |
5582 | ||
5583 | void | |
5584 | Perl_sv_vsetpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
5585 | { | |
5586 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
5587 | SvSETMAGIC(sv); |
5588 | } | |
5589 | ||
cea2e8a9 GS |
5590 | #if defined(PERL_IMPLICIT_CONTEXT) |
5591 | void | |
5592 | Perl_sv_catpvf_nocontext(SV *sv, const char* pat, ...) | |
5593 | { | |
5594 | dTHX; | |
5595 | va_list args; | |
5596 | va_start(args, pat); | |
c5be433b | 5597 | sv_vcatpvf(sv, pat, &args); |
cea2e8a9 GS |
5598 | va_end(args); |
5599 | } | |
5600 | ||
5601 | void | |
5602 | Perl_sv_catpvf_mg_nocontext(SV *sv, const char* pat, ...) | |
5603 | { | |
5604 | dTHX; | |
5605 | va_list args; | |
5606 | va_start(args, pat); | |
c5be433b | 5607 | sv_vcatpvf_mg(sv, pat, &args); |
cea2e8a9 | 5608 | va_end(args); |
cea2e8a9 GS |
5609 | } |
5610 | #endif | |
5611 | ||
954c1994 GS |
5612 | /* |
5613 | =for apidoc sv_catpvf | |
5614 | ||
5615 | Processes its arguments like C<sprintf> and appends the formatted output | |
5616 | to an SV. Handles 'get' magic, but not 'set' magic. C<SvSETMAGIC()> must | |
5617 | typically be called after calling this function to handle 'set' magic. | |
5618 | ||
5619 | =cut | |
5620 | */ | |
5621 | ||
46fc3d4c | 5622 | void |
864dbfa3 | 5623 | Perl_sv_catpvf(pTHX_ SV *sv, const char* pat, ...) |
46fc3d4c | 5624 | { |
5625 | va_list args; | |
46fc3d4c | 5626 | va_start(args, pat); |
c5be433b | 5627 | sv_vcatpvf(sv, pat, &args); |
46fc3d4c | 5628 | va_end(args); |
5629 | } | |
5630 | ||
ef50df4b | 5631 | void |
c5be433b GS |
5632 | Perl_sv_vcatpvf(pTHX_ SV *sv, const char* pat, va_list* args) |
5633 | { | |
5634 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
5635 | } | |
5636 | ||
954c1994 GS |
5637 | /* |
5638 | =for apidoc sv_catpvf_mg | |
5639 | ||
5640 | Like C<sv_catpvf>, but also handles 'set' magic. | |
5641 | ||
5642 | =cut | |
5643 | */ | |
5644 | ||
c5be433b | 5645 | void |
864dbfa3 | 5646 | Perl_sv_catpvf_mg(pTHX_ SV *sv, const char* pat, ...) |
ef50df4b GS |
5647 | { |
5648 | va_list args; | |
ef50df4b | 5649 | va_start(args, pat); |
c5be433b | 5650 | sv_vcatpvf_mg(sv, pat, &args); |
ef50df4b | 5651 | va_end(args); |
c5be433b GS |
5652 | } |
5653 | ||
5654 | void | |
5655 | Perl_sv_vcatpvf_mg(pTHX_ SV *sv, const char* pat, va_list* args) | |
5656 | { | |
5657 | sv_vcatpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); | |
ef50df4b GS |
5658 | SvSETMAGIC(sv); |
5659 | } | |
5660 | ||
954c1994 GS |
5661 | /* |
5662 | =for apidoc sv_vsetpvfn | |
5663 | ||
5664 | Works like C<vcatpvfn> but copies the text into the SV instead of | |
5665 | appending it. | |
5666 | ||
5667 | =cut | |
5668 | */ | |
5669 | ||
46fc3d4c | 5670 | void |
7d5ea4e7 | 5671 | Perl_sv_vsetpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 5672 | { |
5673 | sv_setpvn(sv, "", 0); | |
7d5ea4e7 | 5674 | sv_vcatpvfn(sv, pat, patlen, args, svargs, svmax, maybe_tainted); |
46fc3d4c | 5675 | } |
5676 | ||
954c1994 GS |
5677 | /* |
5678 | =for apidoc sv_vcatpvfn | |
5679 | ||
5680 | Processes its arguments like C<vsprintf> and appends the formatted output | |
5681 | to an SV. Uses an array of SVs if the C style variable argument list is | |
5682 | missing (NULL). When running with taint checks enabled, indicates via | |
5683 | C<maybe_tainted> if results are untrustworthy (often due to the use of | |
5684 | locales). | |
5685 | ||
5686 | =cut | |
5687 | */ | |
5688 | ||
46fc3d4c | 5689 | void |
7d5ea4e7 | 5690 | Perl_sv_vcatpvfn(pTHX_ SV *sv, const char *pat, STRLEN patlen, va_list *args, SV **svargs, I32 svmax, bool *maybe_tainted) |
46fc3d4c | 5691 | { |
e858de61 | 5692 | dTHR; |
46fc3d4c | 5693 | char *p; |
5694 | char *q; | |
5695 | char *patend; | |
fc36a67e | 5696 | STRLEN origlen; |
46fc3d4c | 5697 | I32 svix = 0; |
c635e13b | 5698 | static char nullstr[] = "(null)"; |
7e2040f0 | 5699 | SV *argsv; |
46fc3d4c | 5700 | |
5701 | /* no matter what, this is a string now */ | |
fc36a67e | 5702 | (void)SvPV_force(sv, origlen); |
46fc3d4c | 5703 | |
fc36a67e | 5704 | /* special-case "", "%s", and "%_" */ |
46fc3d4c | 5705 | if (patlen == 0) |
5706 | return; | |
fc36a67e | 5707 | if (patlen == 2 && pat[0] == '%') { |
5708 | switch (pat[1]) { | |
5709 | case 's': | |
c635e13b | 5710 | if (args) { |
5711 | char *s = va_arg(*args, char*); | |
5712 | sv_catpv(sv, s ? s : nullstr); | |
5713 | } | |
7e2040f0 | 5714 | else if (svix < svmax) { |
fc36a67e | 5715 | sv_catsv(sv, *svargs); |
7e2040f0 GS |
5716 | if (DO_UTF8(*svargs)) |
5717 | SvUTF8_on(sv); | |
5718 | } | |
fc36a67e | 5719 | return; |
5720 | case '_': | |
5721 | if (args) { | |
7e2040f0 GS |
5722 | argsv = va_arg(*args, SV*); |
5723 | sv_catsv(sv, argsv); | |
5724 | if (DO_UTF8(argsv)) | |
5725 | SvUTF8_on(sv); | |
fc36a67e | 5726 | return; |
5727 | } | |
5728 | /* See comment on '_' below */ | |
5729 | break; | |
5730 | } | |
46fc3d4c | 5731 | } |
5732 | ||
5733 | patend = (char*)pat + patlen; | |
5734 | for (p = (char*)pat; p < patend; p = q) { | |
5735 | bool alt = FALSE; | |
5736 | bool left = FALSE; | |
b22c7a20 GS |
5737 | bool vectorize = FALSE; |
5738 | bool utf = FALSE; | |
46fc3d4c | 5739 | char fill = ' '; |
5740 | char plus = 0; | |
5741 | char intsize = 0; | |
5742 | STRLEN width = 0; | |
fc36a67e | 5743 | STRLEN zeros = 0; |
46fc3d4c | 5744 | bool has_precis = FALSE; |
5745 | STRLEN precis = 0; | |
7e2040f0 | 5746 | bool is_utf = FALSE; |
46fc3d4c | 5747 | |
5748 | char esignbuf[4]; | |
806e7201 | 5749 | U8 utf8buf[UTF8_MAXLEN]; |
46fc3d4c | 5750 | STRLEN esignlen = 0; |
5751 | ||
5752 | char *eptr = Nullch; | |
fc36a67e | 5753 | STRLEN elen = 0; |
089c015b JH |
5754 | /* Times 4: a decimal digit takes more than 3 binary digits. |
5755 | * NV_DIG: mantissa takes than many decimal digits. | |
5756 | * Plus 32: Playing safe. */ | |
5757 | char ebuf[IV_DIG * 4 + NV_DIG + 32]; | |
2d4389e4 JH |
5758 | /* large enough for "%#.#f" --chip */ |
5759 | /* what about long double NVs? --jhi */ | |
b22c7a20 GS |
5760 | |
5761 | SV *vecsv; | |
a05b299f | 5762 | U8 *vecstr = Null(U8*); |
b22c7a20 | 5763 | STRLEN veclen = 0; |
46fc3d4c | 5764 | char c; |
5765 | int i; | |
5766 | unsigned base; | |
5767 | IV iv; | |
5768 | UV uv; | |
65202027 | 5769 | NV nv; |
46fc3d4c | 5770 | STRLEN have; |
5771 | STRLEN need; | |
5772 | STRLEN gap; | |
b22c7a20 GS |
5773 | char *dotstr = "."; |
5774 | STRLEN dotstrlen = 1; | |
46fc3d4c | 5775 | |
5776 | for (q = p; q < patend && *q != '%'; ++q) ; | |
5777 | if (q > p) { | |
5778 | sv_catpvn(sv, p, q - p); | |
5779 | p = q; | |
5780 | } | |
5781 | if (q++ >= patend) | |
5782 | break; | |
5783 | ||
fc36a67e | 5784 | /* FLAGS */ |
5785 | ||
46fc3d4c | 5786 | while (*q) { |
5787 | switch (*q) { | |
5788 | case ' ': | |
5789 | case '+': | |
5790 | plus = *q++; | |
5791 | continue; | |
5792 | ||
5793 | case '-': | |
5794 | left = TRUE; | |
5795 | q++; | |
5796 | continue; | |
5797 | ||
5798 | case '0': | |
5799 | fill = *q++; | |
5800 | continue; | |
5801 | ||
5802 | case '#': | |
5803 | alt = TRUE; | |
5804 | q++; | |
5805 | continue; | |
5806 | ||
b22c7a20 GS |
5807 | case '*': /* printf("%*vX",":",$ipv6addr) */ |
5808 | if (q[1] != 'v') | |
5809 | break; | |
5810 | q++; | |
5811 | if (args) | |
5812 | vecsv = va_arg(*args, SV*); | |
5813 | else if (svix < svmax) | |
5814 | vecsv = svargs[svix++]; | |
5815 | dotstr = SvPVx(vecsv,dotstrlen); | |
5816 | if (DO_UTF8(vecsv)) | |
5817 | is_utf = TRUE; | |
5818 | /* FALL THROUGH */ | |
5819 | ||
5820 | case 'v': | |
5821 | vectorize = TRUE; | |
5822 | q++; | |
5823 | if (args) | |
5824 | vecsv = va_arg(*args, SV*); | |
5825 | else if (svix < svmax) | |
5826 | vecsv = svargs[svix++]; | |
a05b299f | 5827 | vecstr = (U8*)SvPVx(vecsv,veclen); |
b22c7a20 GS |
5828 | utf = DO_UTF8(vecsv); |
5829 | continue; | |
5830 | ||
fc36a67e | 5831 | default: |
5832 | break; | |
5833 | } | |
5834 | break; | |
5835 | } | |
46fc3d4c | 5836 | |
fc36a67e | 5837 | /* WIDTH */ |
5838 | ||
5839 | switch (*q) { | |
5840 | case '1': case '2': case '3': | |
5841 | case '4': case '5': case '6': | |
5842 | case '7': case '8': case '9': | |
5843 | width = 0; | |
5844 | while (isDIGIT(*q)) | |
5845 | width = width * 10 + (*q++ - '0'); | |
5846 | break; | |
5847 | ||
5848 | case '*': | |
5849 | if (args) | |
5850 | i = va_arg(*args, int); | |
5851 | else | |
5852 | i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
5853 | left |= (i < 0); | |
5854 | width = (i < 0) ? -i : i; | |
5855 | q++; | |
5856 | break; | |
5857 | } | |
5858 | ||
5859 | /* PRECISION */ | |
46fc3d4c | 5860 | |
fc36a67e | 5861 | if (*q == '.') { |
5862 | q++; | |
5863 | if (*q == '*') { | |
46fc3d4c | 5864 | if (args) |
5865 | i = va_arg(*args, int); | |
5866 | else | |
5867 | i = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
fc36a67e | 5868 | precis = (i < 0) ? 0 : i; |
46fc3d4c | 5869 | q++; |
fc36a67e | 5870 | } |
5871 | else { | |
5872 | precis = 0; | |
5873 | while (isDIGIT(*q)) | |
5874 | precis = precis * 10 + (*q++ - '0'); | |
5875 | } | |
5876 | has_precis = TRUE; | |
5877 | } | |
46fc3d4c | 5878 | |
fc36a67e | 5879 | /* SIZE */ |
46fc3d4c | 5880 | |
fc36a67e | 5881 | switch (*q) { |
6f9bb7fd GS |
5882 | #ifdef HAS_QUAD |
5883 | case 'L': /* Ld */ | |
5884 | case 'q': /* qd */ | |
5885 | intsize = 'q'; | |
5886 | q++; | |
5887 | break; | |
5888 | #endif | |
fc36a67e | 5889 | case 'l': |
cf2093f6 JH |
5890 | #ifdef HAS_QUAD |
5891 | if (*(q + 1) == 'l') { /* lld */ | |
fc36a67e | 5892 | intsize = 'q'; |
5893 | q += 2; | |
46fc3d4c | 5894 | break; |
cf2093f6 | 5895 | } |
fc36a67e | 5896 | #endif |
6f9bb7fd | 5897 | /* FALL THROUGH */ |
fc36a67e | 5898 | case 'h': |
cf2093f6 | 5899 | /* FALL THROUGH */ |
fc36a67e | 5900 | case 'V': |
5901 | intsize = *q++; | |
46fc3d4c | 5902 | break; |
5903 | } | |
5904 | ||
fc36a67e | 5905 | /* CONVERSION */ |
5906 | ||
46fc3d4c | 5907 | switch (c = *q++) { |
5908 | ||
5909 | /* STRINGS */ | |
5910 | ||
5911 | case '%': | |
5912 | eptr = q - 1; | |
5913 | elen = 1; | |
5914 | goto string; | |
5915 | ||
5916 | case 'c': | |
7e2040f0 GS |
5917 | if (args) |
5918 | uv = va_arg(*args, int); | |
5919 | else | |
5920 | uv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
3969a896 | 5921 | if ((uv > 255 || (uv > 127 && SvUTF8(sv))) && !IN_BYTE) { |
dfe13c55 GS |
5922 | eptr = (char*)utf8buf; |
5923 | elen = uv_to_utf8((U8*)eptr, uv) - utf8buf; | |
7e2040f0 GS |
5924 | is_utf = TRUE; |
5925 | } | |
5926 | else { | |
5927 | c = (char)uv; | |
5928 | eptr = &c; | |
5929 | elen = 1; | |
a0ed51b3 | 5930 | } |
46fc3d4c | 5931 | goto string; |
5932 | ||
46fc3d4c | 5933 | case 's': |
5934 | if (args) { | |
fc36a67e | 5935 | eptr = va_arg(*args, char*); |
c635e13b | 5936 | if (eptr) |
1d7c1841 GS |
5937 | #ifdef MACOS_TRADITIONAL |
5938 | /* On MacOS, %#s format is used for Pascal strings */ | |
5939 | if (alt) | |
5940 | elen = *eptr++; | |
5941 | else | |
5942 | #endif | |
c635e13b | 5943 | elen = strlen(eptr); |
5944 | else { | |
5945 | eptr = nullstr; | |
5946 | elen = sizeof nullstr - 1; | |
5947 | } | |
46fc3d4c | 5948 | } |
a0ed51b3 | 5949 | else if (svix < svmax) { |
7e2040f0 GS |
5950 | argsv = svargs[svix++]; |
5951 | eptr = SvPVx(argsv, elen); | |
5952 | if (DO_UTF8(argsv)) { | |
a0ed51b3 LW |
5953 | if (has_precis && precis < elen) { |
5954 | I32 p = precis; | |
7e2040f0 | 5955 | sv_pos_u2b(argsv, &p, 0); /* sticks at end */ |
a0ed51b3 LW |
5956 | precis = p; |
5957 | } | |
5958 | if (width) { /* fudge width (can't fudge elen) */ | |
7e2040f0 | 5959 | width += elen - sv_len_utf8(argsv); |
a0ed51b3 | 5960 | } |
7e2040f0 | 5961 | is_utf = TRUE; |
a0ed51b3 LW |
5962 | } |
5963 | } | |
46fc3d4c | 5964 | goto string; |
5965 | ||
fc36a67e | 5966 | case '_': |
5967 | /* | |
5968 | * The "%_" hack might have to be changed someday, | |
5969 | * if ISO or ANSI decide to use '_' for something. | |
5970 | * So we keep it hidden from users' code. | |
5971 | */ | |
5972 | if (!args) | |
5973 | goto unknown; | |
7e2040f0 GS |
5974 | argsv = va_arg(*args,SV*); |
5975 | eptr = SvPVx(argsv, elen); | |
5976 | if (DO_UTF8(argsv)) | |
5977 | is_utf = TRUE; | |
fc36a67e | 5978 | |
46fc3d4c | 5979 | string: |
b22c7a20 | 5980 | vectorize = FALSE; |
46fc3d4c | 5981 | if (has_precis && elen > precis) |
5982 | elen = precis; | |
5983 | break; | |
5984 | ||
5985 | /* INTEGERS */ | |
5986 | ||
fc36a67e | 5987 | case 'p': |
5988 | if (args) | |
56431972 | 5989 | uv = PTR2UV(va_arg(*args, void*)); |
fc36a67e | 5990 | else |
56431972 | 5991 | uv = (svix < svmax) ? PTR2UV(svargs[svix++]) : 0; |
fc36a67e | 5992 | base = 16; |
5993 | goto integer; | |
5994 | ||
46fc3d4c | 5995 | case 'D': |
29fe7a80 | 5996 | #ifdef IV_IS_QUAD |
22f3ae8c | 5997 | intsize = 'q'; |
29fe7a80 | 5998 | #else |
46fc3d4c | 5999 | intsize = 'l'; |
29fe7a80 | 6000 | #endif |
46fc3d4c | 6001 | /* FALL THROUGH */ |
6002 | case 'd': | |
6003 | case 'i': | |
b22c7a20 GS |
6004 | if (vectorize) { |
6005 | I32 ulen; | |
6006 | if (!veclen) { | |
6007 | vectorize = FALSE; | |
6008 | break; | |
6009 | } | |
6010 | if (utf) | |
6011 | iv = (IV)utf8_to_uv(vecstr, &ulen); | |
6012 | else { | |
a05b299f | 6013 | iv = *vecstr; |
b22c7a20 GS |
6014 | ulen = 1; |
6015 | } | |
6016 | vecstr += ulen; | |
6017 | veclen -= ulen; | |
6018 | } | |
6019 | else if (args) { | |
46fc3d4c | 6020 | switch (intsize) { |
6021 | case 'h': iv = (short)va_arg(*args, int); break; | |
6022 | default: iv = va_arg(*args, int); break; | |
6023 | case 'l': iv = va_arg(*args, long); break; | |
fc36a67e | 6024 | case 'V': iv = va_arg(*args, IV); break; |
cf2093f6 JH |
6025 | #ifdef HAS_QUAD |
6026 | case 'q': iv = va_arg(*args, Quad_t); break; | |
6027 | #endif | |
46fc3d4c | 6028 | } |
6029 | } | |
6030 | else { | |
6031 | iv = (svix < svmax) ? SvIVx(svargs[svix++]) : 0; | |
6032 | switch (intsize) { | |
6033 | case 'h': iv = (short)iv; break; | |
6034 | default: iv = (int)iv; break; | |
6035 | case 'l': iv = (long)iv; break; | |
fc36a67e | 6036 | case 'V': break; |
cf2093f6 JH |
6037 | #ifdef HAS_QUAD |
6038 | case 'q': iv = (Quad_t)iv; break; | |
6039 | #endif | |
46fc3d4c | 6040 | } |
6041 | } | |
6042 | if (iv >= 0) { | |
6043 | uv = iv; | |
6044 | if (plus) | |
6045 | esignbuf[esignlen++] = plus; | |
6046 | } | |
6047 | else { | |
6048 | uv = -iv; | |
6049 | esignbuf[esignlen++] = '-'; | |
6050 | } | |
6051 | base = 10; | |
6052 | goto integer; | |
6053 | ||
fc36a67e | 6054 | case 'U': |
29fe7a80 | 6055 | #ifdef IV_IS_QUAD |
22f3ae8c | 6056 | intsize = 'q'; |
29fe7a80 | 6057 | #else |
fc36a67e | 6058 | intsize = 'l'; |
29fe7a80 | 6059 | #endif |
fc36a67e | 6060 | /* FALL THROUGH */ |
6061 | case 'u': | |
6062 | base = 10; | |
6063 | goto uns_integer; | |
6064 | ||
4f19785b WSI |
6065 | case 'b': |
6066 | base = 2; | |
6067 | goto uns_integer; | |
6068 | ||
46fc3d4c | 6069 | case 'O': |
29fe7a80 | 6070 | #ifdef IV_IS_QUAD |
22f3ae8c | 6071 | intsize = 'q'; |
29fe7a80 | 6072 | #else |
46fc3d4c | 6073 | intsize = 'l'; |
29fe7a80 | 6074 | #endif |
46fc3d4c | 6075 | /* FALL THROUGH */ |
6076 | case 'o': | |
6077 | base = 8; | |
6078 | goto uns_integer; | |
6079 | ||
6080 | case 'X': | |
46fc3d4c | 6081 | case 'x': |
6082 | base = 16; | |
46fc3d4c | 6083 | |
6084 | uns_integer: | |
b22c7a20 GS |
6085 | if (vectorize) { |
6086 | I32 ulen; | |
6087 | vector: | |
6088 | if (!veclen) { | |
6089 | vectorize = FALSE; | |
6090 | break; | |
6091 | } | |
6092 | if (utf) | |
6093 | uv = utf8_to_uv(vecstr, &ulen); | |
6094 | else { | |
a05b299f | 6095 | uv = *vecstr; |
b22c7a20 GS |
6096 | ulen = 1; |
6097 | } | |
6098 | vecstr += ulen; | |
6099 | veclen -= ulen; | |
6100 | } | |
6101 | else if (args) { | |
46fc3d4c | 6102 | switch (intsize) { |
6103 | case 'h': uv = (unsigned short)va_arg(*args, unsigned); break; | |
6104 | default: uv = va_arg(*args, unsigned); break; | |
6105 | case 'l': uv = va_arg(*args, unsigned long); break; | |
fc36a67e | 6106 | case 'V': uv = va_arg(*args, UV); break; |
cf2093f6 JH |
6107 | #ifdef HAS_QUAD |
6108 | case 'q': uv = va_arg(*args, Quad_t); break; | |
6109 | #endif | |
46fc3d4c | 6110 | } |
6111 | } | |
6112 | else { | |
6113 | uv = (svix < svmax) ? SvUVx(svargs[svix++]) : 0; | |
6114 | switch (intsize) { | |
6115 | case 'h': uv = (unsigned short)uv; break; | |
6116 | default: uv = (unsigned)uv; break; | |
6117 | case 'l': uv = (unsigned long)uv; break; | |
fc36a67e | 6118 | case 'V': break; |
cf2093f6 JH |
6119 | #ifdef HAS_QUAD |
6120 | case 'q': uv = (Quad_t)uv; break; | |
6121 | #endif | |
46fc3d4c | 6122 | } |
6123 | } | |
6124 | ||
6125 | integer: | |
46fc3d4c | 6126 | eptr = ebuf + sizeof ebuf; |
fc36a67e | 6127 | switch (base) { |
6128 | unsigned dig; | |
6129 | case 16: | |
c10ed8b9 HS |
6130 | if (!uv) |
6131 | alt = FALSE; | |
1d7c1841 GS |
6132 | p = (char*)((c == 'X') |
6133 | ? "0123456789ABCDEF" : "0123456789abcdef"); | |
fc36a67e | 6134 | do { |
6135 | dig = uv & 15; | |
6136 | *--eptr = p[dig]; | |
6137 | } while (uv >>= 4); | |
6138 | if (alt) { | |
46fc3d4c | 6139 | esignbuf[esignlen++] = '0'; |
fc36a67e | 6140 | esignbuf[esignlen++] = c; /* 'x' or 'X' */ |
46fc3d4c | 6141 | } |
fc36a67e | 6142 | break; |
6143 | case 8: | |
6144 | do { | |
6145 | dig = uv & 7; | |
6146 | *--eptr = '0' + dig; | |
6147 | } while (uv >>= 3); | |
6148 | if (alt && *eptr != '0') | |
6149 | *--eptr = '0'; | |
6150 | break; | |
4f19785b WSI |
6151 | case 2: |
6152 | do { | |
6153 | dig = uv & 1; | |
6154 | *--eptr = '0' + dig; | |
6155 | } while (uv >>= 1); | |
eda88b6d JH |
6156 | if (alt) { |
6157 | esignbuf[esignlen++] = '0'; | |
7481bb52 | 6158 | esignbuf[esignlen++] = 'b'; |
eda88b6d | 6159 | } |
4f19785b | 6160 | break; |
fc36a67e | 6161 | default: /* it had better be ten or less */ |
6bc102ca | 6162 | #if defined(PERL_Y2KWARN) |
e476b1b5 | 6163 | if (ckWARN(WARN_Y2K)) { |
6bc102ca GS |
6164 | STRLEN n; |
6165 | char *s = SvPV(sv,n); | |
6166 | if (n >= 2 && s[n-2] == '1' && s[n-1] == '9' | |
6167 | && (n == 2 || !isDIGIT(s[n-3]))) | |
6168 | { | |
e476b1b5 | 6169 | Perl_warner(aTHX_ WARN_Y2K, |
6bc102ca GS |
6170 | "Possible Y2K bug: %%%c %s", |
6171 | c, "format string following '19'"); | |
6172 | } | |
6173 | } | |
6174 | #endif | |
fc36a67e | 6175 | do { |
6176 | dig = uv % base; | |
6177 | *--eptr = '0' + dig; | |
6178 | } while (uv /= base); | |
6179 | break; | |
46fc3d4c | 6180 | } |
6181 | elen = (ebuf + sizeof ebuf) - eptr; | |
c10ed8b9 HS |
6182 | if (has_precis) { |
6183 | if (precis > elen) | |
6184 | zeros = precis - elen; | |
6185 | else if (precis == 0 && elen == 1 && *eptr == '0') | |
6186 | elen = 0; | |
6187 | } | |
46fc3d4c | 6188 | break; |
6189 | ||
6190 | /* FLOATING POINT */ | |
6191 | ||
fc36a67e | 6192 | case 'F': |
6193 | c = 'f'; /* maybe %F isn't supported here */ | |
6194 | /* FALL THROUGH */ | |
46fc3d4c | 6195 | case 'e': case 'E': |
fc36a67e | 6196 | case 'f': |
46fc3d4c | 6197 | case 'g': case 'G': |
6198 | ||
6199 | /* This is evil, but floating point is even more evil */ | |
6200 | ||
b22c7a20 | 6201 | vectorize = FALSE; |
fc36a67e | 6202 | if (args) |
65202027 | 6203 | nv = va_arg(*args, NV); |
fc36a67e | 6204 | else |
6205 | nv = (svix < svmax) ? SvNVx(svargs[svix++]) : 0.0; | |
6206 | ||
6207 | need = 0; | |
6208 | if (c != 'e' && c != 'E') { | |
6209 | i = PERL_INT_MIN; | |
6210 | (void)frexp(nv, &i); | |
6211 | if (i == PERL_INT_MIN) | |
cea2e8a9 | 6212 | Perl_die(aTHX_ "panic: frexp"); |
c635e13b | 6213 | if (i > 0) |
fc36a67e | 6214 | need = BIT_DIGITS(i); |
6215 | } | |
6216 | need += has_precis ? precis : 6; /* known default */ | |
6217 | if (need < width) | |
6218 | need = width; | |
6219 | ||
46fc3d4c | 6220 | need += 20; /* fudge factor */ |
80252599 GS |
6221 | if (PL_efloatsize < need) { |
6222 | Safefree(PL_efloatbuf); | |
6223 | PL_efloatsize = need + 20; /* more fudge */ | |
6224 | New(906, PL_efloatbuf, PL_efloatsize, char); | |
7d5ea4e7 | 6225 | PL_efloatbuf[0] = '\0'; |
46fc3d4c | 6226 | } |
6227 | ||
6228 | eptr = ebuf + sizeof ebuf; | |
6229 | *--eptr = '\0'; | |
6230 | *--eptr = c; | |
65202027 | 6231 | #ifdef USE_LONG_DOUBLE |
cf2093f6 | 6232 | { |
db618c41 | 6233 | char* p = PERL_PRIfldbl + sizeof(PERL_PRIfldbl) - 3; |
b0ce926a | 6234 | while (p >= PERL_PRIfldbl) { *--eptr = *p--; } |
cf2093f6 | 6235 | } |
65202027 | 6236 | #endif |
46fc3d4c | 6237 | if (has_precis) { |
6238 | base = precis; | |
6239 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
6240 | *--eptr = '.'; | |
6241 | } | |
6242 | if (width) { | |
6243 | base = width; | |
6244 | do { *--eptr = '0' + (base % 10); } while (base /= 10); | |
6245 | } | |
6246 | if (fill == '0') | |
6247 | *--eptr = fill; | |
84902520 TB |
6248 | if (left) |
6249 | *--eptr = '-'; | |
46fc3d4c | 6250 | if (plus) |
6251 | *--eptr = plus; | |
6252 | if (alt) | |
6253 | *--eptr = '#'; | |
6254 | *--eptr = '%'; | |
6255 | ||
097ee67d JH |
6256 | { |
6257 | RESTORE_NUMERIC_STANDARD(); | |
6258 | (void)sprintf(PL_efloatbuf, eptr, nv); | |
6259 | RESTORE_NUMERIC_LOCAL(); | |
6260 | } | |
46fc3d4c | 6261 | |
80252599 GS |
6262 | eptr = PL_efloatbuf; |
6263 | elen = strlen(PL_efloatbuf); | |
46fc3d4c | 6264 | break; |
6265 | ||
fc36a67e | 6266 | /* SPECIAL */ |
6267 | ||
6268 | case 'n': | |
b22c7a20 | 6269 | vectorize = FALSE; |
fc36a67e | 6270 | i = SvCUR(sv) - origlen; |
6271 | if (args) { | |
c635e13b | 6272 | switch (intsize) { |
6273 | case 'h': *(va_arg(*args, short*)) = i; break; | |
6274 | default: *(va_arg(*args, int*)) = i; break; | |
6275 | case 'l': *(va_arg(*args, long*)) = i; break; | |
6276 | case 'V': *(va_arg(*args, IV*)) = i; break; | |
cf2093f6 JH |
6277 | #ifdef HAS_QUAD |
6278 | case 'q': *(va_arg(*args, Quad_t*)) = i; break; | |
6279 | #endif | |
c635e13b | 6280 | } |
fc36a67e | 6281 | } |
6282 | else if (svix < svmax) | |
6283 | sv_setuv(svargs[svix++], (UV)i); | |
6284 | continue; /* not "break" */ | |
6285 | ||
6286 | /* UNKNOWN */ | |
6287 | ||
46fc3d4c | 6288 | default: |
fc36a67e | 6289 | unknown: |
b22c7a20 | 6290 | vectorize = FALSE; |
599cee73 | 6291 | if (!args && ckWARN(WARN_PRINTF) && |
533c011a | 6292 | (PL_op->op_type == OP_PRTF || PL_op->op_type == OP_SPRINTF)) { |
c635e13b | 6293 | SV *msg = sv_newmortal(); |
cea2e8a9 | 6294 | Perl_sv_setpvf(aTHX_ msg, "Invalid conversion in %s: ", |
533c011a | 6295 | (PL_op->op_type == OP_PRTF) ? "printf" : "sprintf"); |
0f4b6630 | 6296 | if (c) { |
0f4b6630 JH |
6297 | if (isPRINT(c)) |
6298 | Perl_sv_catpvf(aTHX_ msg, | |
6299 | "\"%%%c\"", c & 0xFF); | |
6300 | else | |
6301 | Perl_sv_catpvf(aTHX_ msg, | |
57def98f | 6302 | "\"%%\\%03"UVof"\"", |
0f4b6630 | 6303 | (UV)c & 0xFF); |
0f4b6630 | 6304 | } else |
c635e13b | 6305 | sv_catpv(msg, "end of string"); |
894356b3 | 6306 | Perl_warner(aTHX_ WARN_PRINTF, "%"SVf, msg); /* yes, this is reentrant */ |
c635e13b | 6307 | } |
fb73857a | 6308 | |
6309 | /* output mangled stuff ... */ | |
6310 | if (c == '\0') | |
6311 | --q; | |
46fc3d4c | 6312 | eptr = p; |
6313 | elen = q - p; | |
fb73857a | 6314 | |
6315 | /* ... right here, because formatting flags should not apply */ | |
6316 | SvGROW(sv, SvCUR(sv) + elen + 1); | |
6317 | p = SvEND(sv); | |
6318 | memcpy(p, eptr, elen); | |
6319 | p += elen; | |
6320 | *p = '\0'; | |
6321 | SvCUR(sv) = p - SvPVX(sv); | |
6322 | continue; /* not "break" */ | |
46fc3d4c | 6323 | } |
6324 | ||
fc36a67e | 6325 | have = esignlen + zeros + elen; |
46fc3d4c | 6326 | need = (have > width ? have : width); |
6327 | gap = need - have; | |
6328 | ||
b22c7a20 | 6329 | SvGROW(sv, SvCUR(sv) + need + dotstrlen + 1); |
46fc3d4c | 6330 | p = SvEND(sv); |
6331 | if (esignlen && fill == '0') { | |
6332 | for (i = 0; i < esignlen; i++) | |
6333 | *p++ = esignbuf[i]; | |
6334 | } | |
6335 | if (gap && !left) { | |
6336 | memset(p, fill, gap); | |
6337 | p += gap; | |
6338 | } | |
6339 | if (esignlen && fill != '0') { | |
6340 | for (i = 0; i < esignlen; i++) | |
6341 | *p++ = esignbuf[i]; | |
6342 | } | |
fc36a67e | 6343 | if (zeros) { |
6344 | for (i = zeros; i; i--) | |
6345 | *p++ = '0'; | |
6346 | } | |
46fc3d4c | 6347 | if (elen) { |
6348 | memcpy(p, eptr, elen); | |
6349 | p += elen; | |
6350 | } | |
6351 | if (gap && left) { | |
6352 | memset(p, ' ', gap); | |
6353 | p += gap; | |
6354 | } | |
b22c7a20 GS |
6355 | if (vectorize) { |
6356 | if (veclen) { | |
6357 | memcpy(p, dotstr, dotstrlen); | |
6358 | p += dotstrlen; | |
6359 | } | |
6360 | else | |
6361 | vectorize = FALSE; /* done iterating over vecstr */ | |
6362 | } | |
7e2040f0 GS |
6363 | if (is_utf) |
6364 | SvUTF8_on(sv); | |
46fc3d4c | 6365 | *p = '\0'; |
6366 | SvCUR(sv) = p - SvPVX(sv); | |
b22c7a20 GS |
6367 | if (vectorize) { |
6368 | esignlen = 0; | |
6369 | goto vector; | |
6370 | } | |
46fc3d4c | 6371 | } |
6372 | } | |
51371543 | 6373 | |
1d7c1841 GS |
6374 | #if defined(USE_ITHREADS) |
6375 | ||
6376 | #if defined(USE_THREADS) | |
6377 | # include "error: USE_THREADS and USE_ITHREADS are incompatible" | |
6378 | #endif | |
6379 | ||
6380 | #ifndef OpREFCNT_inc | |
6381 | # define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : Nullop) | |
6382 | #endif | |
6383 | ||
6384 | #ifndef GpREFCNT_inc | |
6385 | # define GpREFCNT_inc(gp) ((gp) ? (++(gp)->gp_refcnt, (gp)) : (GP*)NULL) | |
6386 | #endif | |
6387 | ||
6388 | ||
6389 | #define sv_dup_inc(s) SvREFCNT_inc(sv_dup(s)) | |
6390 | #define av_dup(s) (AV*)sv_dup((SV*)s) | |
6391 | #define av_dup_inc(s) (AV*)SvREFCNT_inc(sv_dup((SV*)s)) | |
6392 | #define hv_dup(s) (HV*)sv_dup((SV*)s) | |
6393 | #define hv_dup_inc(s) (HV*)SvREFCNT_inc(sv_dup((SV*)s)) | |
6394 | #define cv_dup(s) (CV*)sv_dup((SV*)s) | |
6395 | #define cv_dup_inc(s) (CV*)SvREFCNT_inc(sv_dup((SV*)s)) | |
6396 | #define io_dup(s) (IO*)sv_dup((SV*)s) | |
6397 | #define io_dup_inc(s) (IO*)SvREFCNT_inc(sv_dup((SV*)s)) | |
6398 | #define gv_dup(s) (GV*)sv_dup((SV*)s) | |
6399 | #define gv_dup_inc(s) (GV*)SvREFCNT_inc(sv_dup((SV*)s)) | |
6400 | #define SAVEPV(p) (p ? savepv(p) : Nullch) | |
6401 | #define SAVEPVN(p,n) (p ? savepvn(p,n) : Nullch) | |
6402 | ||
6403 | REGEXP * | |
6404 | Perl_re_dup(pTHX_ REGEXP *r) | |
6405 | { | |
6406 | /* XXX fix when pmop->op_pmregexp becomes shared */ | |
6407 | return ReREFCNT_inc(r); | |
6408 | } | |
6409 | ||
6410 | PerlIO * | |
6411 | Perl_fp_dup(pTHX_ PerlIO *fp, char type) | |
6412 | { | |
6413 | PerlIO *ret; | |
6414 | if (!fp) | |
6415 | return (PerlIO*)NULL; | |
6416 | ||
6417 | /* look for it in the table first */ | |
6418 | ret = (PerlIO*)ptr_table_fetch(PL_ptr_table, fp); | |
6419 | if (ret) | |
6420 | return ret; | |
6421 | ||
6422 | /* create anew and remember what it is */ | |
6423 | ret = PerlIO_fdupopen(fp); | |
6424 | ptr_table_store(PL_ptr_table, fp, ret); | |
6425 | return ret; | |
6426 | } | |
6427 | ||
6428 | DIR * | |
6429 | Perl_dirp_dup(pTHX_ DIR *dp) | |
6430 | { | |
6431 | if (!dp) | |
6432 | return (DIR*)NULL; | |
6433 | /* XXX TODO */ | |
6434 | return dp; | |
6435 | } | |
6436 | ||
6437 | GP * | |
6438 | Perl_gp_dup(pTHX_ GP *gp) | |
6439 | { | |
6440 | GP *ret; | |
6441 | if (!gp) | |
6442 | return (GP*)NULL; | |
6443 | /* look for it in the table first */ | |
6444 | ret = (GP*)ptr_table_fetch(PL_ptr_table, gp); | |
6445 | if (ret) | |
6446 | return ret; | |
6447 | ||
6448 | /* create anew and remember what it is */ | |
6449 | Newz(0, ret, 1, GP); | |
6450 | ptr_table_store(PL_ptr_table, gp, ret); | |
6451 | ||
6452 | /* clone */ | |
6453 | ret->gp_refcnt = 0; /* must be before any other dups! */ | |
6454 | ret->gp_sv = sv_dup_inc(gp->gp_sv); | |
6455 | ret->gp_io = io_dup_inc(gp->gp_io); | |
6456 | ret->gp_form = cv_dup_inc(gp->gp_form); | |
6457 | ret->gp_av = av_dup_inc(gp->gp_av); | |
6458 | ret->gp_hv = hv_dup_inc(gp->gp_hv); | |
6459 | ret->gp_egv = gv_dup(gp->gp_egv); /* GvEGV is not refcounted */ | |
6460 | ret->gp_cv = cv_dup_inc(gp->gp_cv); | |
6461 | ret->gp_cvgen = gp->gp_cvgen; | |
6462 | ret->gp_flags = gp->gp_flags; | |
6463 | ret->gp_line = gp->gp_line; | |
6464 | ret->gp_file = gp->gp_file; /* points to COP.cop_file */ | |
6465 | return ret; | |
6466 | } | |
6467 | ||
6468 | MAGIC * | |
6469 | Perl_mg_dup(pTHX_ MAGIC *mg) | |
6470 | { | |
6471 | MAGIC *mgret = (MAGIC*)NULL; | |
6472 | MAGIC *mgprev; | |
6473 | if (!mg) | |
6474 | return (MAGIC*)NULL; | |
6475 | /* look for it in the table first */ | |
6476 | mgret = (MAGIC*)ptr_table_fetch(PL_ptr_table, mg); | |
6477 | if (mgret) | |
6478 | return mgret; | |
6479 | ||
6480 | for (; mg; mg = mg->mg_moremagic) { | |
6481 | MAGIC *nmg; | |
6482 | Newz(0, nmg, 1, MAGIC); | |
6483 | if (!mgret) | |
6484 | mgret = nmg; | |
6485 | else | |
6486 | mgprev->mg_moremagic = nmg; | |
6487 | nmg->mg_virtual = mg->mg_virtual; /* XXX copy dynamic vtable? */ | |
6488 | nmg->mg_private = mg->mg_private; | |
6489 | nmg->mg_type = mg->mg_type; | |
6490 | nmg->mg_flags = mg->mg_flags; | |
6491 | if (mg->mg_type == 'r') { | |
6492 | nmg->mg_obj = (SV*)re_dup((REGEXP*)mg->mg_obj); | |
6493 | } | |
6494 | else { | |
6495 | nmg->mg_obj = (mg->mg_flags & MGf_REFCOUNTED) | |
6496 | ? sv_dup_inc(mg->mg_obj) | |
6497 | : sv_dup(mg->mg_obj); | |
6498 | } | |
6499 | nmg->mg_len = mg->mg_len; | |
6500 | nmg->mg_ptr = mg->mg_ptr; /* XXX random ptr? */ | |
6501 | if (mg->mg_ptr && mg->mg_type != 'g') { | |
6502 | if (mg->mg_len >= 0) { | |
6503 | nmg->mg_ptr = SAVEPVN(mg->mg_ptr, mg->mg_len); | |
6504 | if (mg->mg_type == 'c' && AMT_AMAGIC((AMT*)mg->mg_ptr)) { | |
6505 | AMT *amtp = (AMT*)mg->mg_ptr; | |
6506 | AMT *namtp = (AMT*)nmg->mg_ptr; | |
6507 | I32 i; | |
6508 | for (i = 1; i < NofAMmeth; i++) { | |
6509 | namtp->table[i] = cv_dup_inc(amtp->table[i]); | |
6510 | } | |
6511 | } | |
6512 | } | |
6513 | else if (mg->mg_len == HEf_SVKEY) | |
6514 | nmg->mg_ptr = (char*)sv_dup_inc((SV*)mg->mg_ptr); | |
6515 | } | |
6516 | mgprev = nmg; | |
6517 | } | |
6518 | return mgret; | |
6519 | } | |
6520 | ||
6521 | PTR_TBL_t * | |
6522 | Perl_ptr_table_new(pTHX) | |
6523 | { | |
6524 | PTR_TBL_t *tbl; | |
6525 | Newz(0, tbl, 1, PTR_TBL_t); | |
6526 | tbl->tbl_max = 511; | |
6527 | tbl->tbl_items = 0; | |
6528 | Newz(0, tbl->tbl_ary, tbl->tbl_max + 1, PTR_TBL_ENT_t*); | |
6529 | return tbl; | |
6530 | } | |
6531 | ||
6532 | void * | |
6533 | Perl_ptr_table_fetch(pTHX_ PTR_TBL_t *tbl, void *sv) | |
6534 | { | |
6535 | PTR_TBL_ENT_t *tblent; | |
d2a79402 | 6536 | UV hash = PTR2UV(sv); |
1d7c1841 GS |
6537 | assert(tbl); |
6538 | tblent = tbl->tbl_ary[hash & tbl->tbl_max]; | |
6539 | for (; tblent; tblent = tblent->next) { | |
6540 | if (tblent->oldval == sv) | |
6541 | return tblent->newval; | |
6542 | } | |
6543 | return (void*)NULL; | |
6544 | } | |
6545 | ||
6546 | void | |
6547 | Perl_ptr_table_store(pTHX_ PTR_TBL_t *tbl, void *oldv, void *newv) | |
6548 | { | |
6549 | PTR_TBL_ENT_t *tblent, **otblent; | |
6550 | /* XXX this may be pessimal on platforms where pointers aren't good | |
6551 | * hash values e.g. if they grow faster in the most significant | |
6552 | * bits */ | |
d2a79402 | 6553 | UV hash = PTR2UV(oldv); |
1d7c1841 GS |
6554 | bool i = 1; |
6555 | ||
6556 | assert(tbl); | |
6557 | otblent = &tbl->tbl_ary[hash & tbl->tbl_max]; | |
6558 | for (tblent = *otblent; tblent; i=0, tblent = tblent->next) { | |
6559 | if (tblent->oldval == oldv) { | |
6560 | tblent->newval = newv; | |
6561 | tbl->tbl_items++; | |
6562 | return; | |
6563 | } | |
6564 | } | |
6565 | Newz(0, tblent, 1, PTR_TBL_ENT_t); | |
6566 | tblent->oldval = oldv; | |
6567 | tblent->newval = newv; | |
6568 | tblent->next = *otblent; | |
6569 | *otblent = tblent; | |
6570 | tbl->tbl_items++; | |
6571 | if (i && tbl->tbl_items > tbl->tbl_max) | |
6572 | ptr_table_split(tbl); | |
6573 | } | |
6574 | ||
6575 | void | |
6576 | Perl_ptr_table_split(pTHX_ PTR_TBL_t *tbl) | |
6577 | { | |
6578 | PTR_TBL_ENT_t **ary = tbl->tbl_ary; | |
6579 | UV oldsize = tbl->tbl_max + 1; | |
6580 | UV newsize = oldsize * 2; | |
6581 | UV i; | |
6582 | ||
6583 | Renew(ary, newsize, PTR_TBL_ENT_t*); | |
6584 | Zero(&ary[oldsize], newsize-oldsize, PTR_TBL_ENT_t*); | |
6585 | tbl->tbl_max = --newsize; | |
6586 | tbl->tbl_ary = ary; | |
6587 | for (i=0; i < oldsize; i++, ary++) { | |
6588 | PTR_TBL_ENT_t **curentp, **entp, *ent; | |
6589 | if (!*ary) | |
6590 | continue; | |
6591 | curentp = ary + oldsize; | |
6592 | for (entp = ary, ent = *ary; ent; ent = *entp) { | |
d2a79402 | 6593 | if ((newsize & PTR2UV(ent->oldval)) != i) { |
1d7c1841 GS |
6594 | *entp = ent->next; |
6595 | ent->next = *curentp; | |
6596 | *curentp = ent; | |
6597 | continue; | |
6598 | } | |
6599 | else | |
6600 | entp = &ent->next; | |
6601 | } | |
6602 | } | |
6603 | } | |
6604 | ||
6605 | #ifdef DEBUGGING | |
6606 | char *PL_watch_pvx; | |
6607 | #endif | |
6608 | ||
6609 | SV * | |
6610 | Perl_sv_dup(pTHX_ SV *sstr) | |
6611 | { | |
6612 | U32 sflags; | |
6613 | int dtype; | |
6614 | int stype; | |
6615 | SV *dstr; | |
6616 | ||
6617 | if (!sstr || SvTYPE(sstr) == SVTYPEMASK) | |
6618 | return Nullsv; | |
6619 | /* look for it in the table first */ | |
6620 | dstr = (SV*)ptr_table_fetch(PL_ptr_table, sstr); | |
6621 | if (dstr) | |
6622 | return dstr; | |
6623 | ||
6624 | /* create anew and remember what it is */ | |
6625 | new_SV(dstr); | |
6626 | ptr_table_store(PL_ptr_table, sstr, dstr); | |
6627 | ||
6628 | /* clone */ | |
6629 | SvFLAGS(dstr) = SvFLAGS(sstr); | |
6630 | SvFLAGS(dstr) &= ~SVf_OOK; /* don't propagate OOK hack */ | |
6631 | SvREFCNT(dstr) = 0; /* must be before any other dups! */ | |
6632 | ||
6633 | #ifdef DEBUGGING | |
6634 | if (SvANY(sstr) && PL_watch_pvx && SvPVX(sstr) == PL_watch_pvx) | |
6635 | PerlIO_printf(Perl_debug_log, "watch at %p hit, found string \"%s\"\n", | |
6636 | PL_watch_pvx, SvPVX(sstr)); | |
6637 | #endif | |
6638 | ||
6639 | switch (SvTYPE(sstr)) { | |
6640 | case SVt_NULL: | |
6641 | SvANY(dstr) = NULL; | |
6642 | break; | |
6643 | case SVt_IV: | |
6644 | SvANY(dstr) = new_XIV(); | |
6645 | SvIVX(dstr) = SvIVX(sstr); | |
6646 | break; | |
6647 | case SVt_NV: | |
6648 | SvANY(dstr) = new_XNV(); | |
6649 | SvNVX(dstr) = SvNVX(sstr); | |
6650 | break; | |
6651 | case SVt_RV: | |
6652 | SvANY(dstr) = new_XRV(); | |
6653 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6654 | break; | |
6655 | case SVt_PV: | |
6656 | SvANY(dstr) = new_XPV(); | |
6657 | SvCUR(dstr) = SvCUR(sstr); | |
6658 | SvLEN(dstr) = SvLEN(sstr); | |
6659 | if (SvROK(sstr)) | |
6660 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6661 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6662 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6663 | else | |
6664 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6665 | break; | |
6666 | case SVt_PVIV: | |
6667 | SvANY(dstr) = new_XPVIV(); | |
6668 | SvCUR(dstr) = SvCUR(sstr); | |
6669 | SvLEN(dstr) = SvLEN(sstr); | |
6670 | SvIVX(dstr) = SvIVX(sstr); | |
6671 | if (SvROK(sstr)) | |
6672 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6673 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6674 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6675 | else | |
6676 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6677 | break; | |
6678 | case SVt_PVNV: | |
6679 | SvANY(dstr) = new_XPVNV(); | |
6680 | SvCUR(dstr) = SvCUR(sstr); | |
6681 | SvLEN(dstr) = SvLEN(sstr); | |
6682 | SvIVX(dstr) = SvIVX(sstr); | |
6683 | SvNVX(dstr) = SvNVX(sstr); | |
6684 | if (SvROK(sstr)) | |
6685 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6686 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6687 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6688 | else | |
6689 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6690 | break; | |
6691 | case SVt_PVMG: | |
6692 | SvANY(dstr) = new_XPVMG(); | |
6693 | SvCUR(dstr) = SvCUR(sstr); | |
6694 | SvLEN(dstr) = SvLEN(sstr); | |
6695 | SvIVX(dstr) = SvIVX(sstr); | |
6696 | SvNVX(dstr) = SvNVX(sstr); | |
6697 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6698 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6699 | if (SvROK(sstr)) | |
6700 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6701 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6702 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6703 | else | |
6704 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6705 | break; | |
6706 | case SVt_PVBM: | |
6707 | SvANY(dstr) = new_XPVBM(); | |
6708 | SvCUR(dstr) = SvCUR(sstr); | |
6709 | SvLEN(dstr) = SvLEN(sstr); | |
6710 | SvIVX(dstr) = SvIVX(sstr); | |
6711 | SvNVX(dstr) = SvNVX(sstr); | |
6712 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6713 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6714 | if (SvROK(sstr)) | |
6715 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6716 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6717 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6718 | else | |
6719 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6720 | BmRARE(dstr) = BmRARE(sstr); | |
6721 | BmUSEFUL(dstr) = BmUSEFUL(sstr); | |
6722 | BmPREVIOUS(dstr)= BmPREVIOUS(sstr); | |
6723 | break; | |
6724 | case SVt_PVLV: | |
6725 | SvANY(dstr) = new_XPVLV(); | |
6726 | SvCUR(dstr) = SvCUR(sstr); | |
6727 | SvLEN(dstr) = SvLEN(sstr); | |
6728 | SvIVX(dstr) = SvIVX(sstr); | |
6729 | SvNVX(dstr) = SvNVX(sstr); | |
6730 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6731 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6732 | if (SvROK(sstr)) | |
6733 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6734 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6735 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6736 | else | |
6737 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6738 | LvTARGOFF(dstr) = LvTARGOFF(sstr); /* XXX sometimes holds PMOP* when DEBUGGING */ | |
6739 | LvTARGLEN(dstr) = LvTARGLEN(sstr); | |
6740 | LvTARG(dstr) = sv_dup_inc(LvTARG(sstr)); | |
6741 | LvTYPE(dstr) = LvTYPE(sstr); | |
6742 | break; | |
6743 | case SVt_PVGV: | |
6744 | SvANY(dstr) = new_XPVGV(); | |
6745 | SvCUR(dstr) = SvCUR(sstr); | |
6746 | SvLEN(dstr) = SvLEN(sstr); | |
6747 | SvIVX(dstr) = SvIVX(sstr); | |
6748 | SvNVX(dstr) = SvNVX(sstr); | |
6749 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6750 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6751 | if (SvROK(sstr)) | |
6752 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6753 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6754 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6755 | else | |
6756 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6757 | GvNAMELEN(dstr) = GvNAMELEN(sstr); | |
6758 | GvNAME(dstr) = SAVEPVN(GvNAME(sstr), GvNAMELEN(sstr)); | |
6759 | GvSTASH(dstr) = hv_dup_inc(GvSTASH(sstr)); | |
6760 | GvFLAGS(dstr) = GvFLAGS(sstr); | |
6761 | GvGP(dstr) = gp_dup(GvGP(sstr)); | |
6762 | (void)GpREFCNT_inc(GvGP(dstr)); | |
6763 | break; | |
6764 | case SVt_PVIO: | |
6765 | SvANY(dstr) = new_XPVIO(); | |
6766 | SvCUR(dstr) = SvCUR(sstr); | |
6767 | SvLEN(dstr) = SvLEN(sstr); | |
6768 | SvIVX(dstr) = SvIVX(sstr); | |
6769 | SvNVX(dstr) = SvNVX(sstr); | |
6770 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6771 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6772 | if (SvROK(sstr)) | |
6773 | SvRV(dstr) = sv_dup_inc(SvRV(sstr)); | |
6774 | else if (SvPVX(sstr) && SvLEN(sstr)) | |
6775 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6776 | else | |
6777 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6778 | IoIFP(dstr) = fp_dup(IoIFP(sstr), IoTYPE(sstr)); | |
6779 | if (IoOFP(sstr) == IoIFP(sstr)) | |
6780 | IoOFP(dstr) = IoIFP(dstr); | |
6781 | else | |
6782 | IoOFP(dstr) = fp_dup(IoOFP(sstr), IoTYPE(sstr)); | |
6783 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
6784 | if (IoDIRP(sstr) && !(IoFLAGS(sstr) & IOf_FAKE_DIRP)) | |
6785 | IoDIRP(dstr) = dirp_dup(IoDIRP(sstr)); | |
6786 | else | |
6787 | IoDIRP(dstr) = IoDIRP(sstr); | |
6788 | IoLINES(dstr) = IoLINES(sstr); | |
6789 | IoPAGE(dstr) = IoPAGE(sstr); | |
6790 | IoPAGE_LEN(dstr) = IoPAGE_LEN(sstr); | |
6791 | IoLINES_LEFT(dstr) = IoLINES_LEFT(sstr); | |
6792 | IoTOP_NAME(dstr) = SAVEPV(IoTOP_NAME(sstr)); | |
6793 | IoTOP_GV(dstr) = gv_dup(IoTOP_GV(sstr)); | |
6794 | IoFMT_NAME(dstr) = SAVEPV(IoFMT_NAME(sstr)); | |
6795 | IoFMT_GV(dstr) = gv_dup(IoFMT_GV(sstr)); | |
6796 | IoBOTTOM_NAME(dstr) = SAVEPV(IoBOTTOM_NAME(sstr)); | |
6797 | IoBOTTOM_GV(dstr) = gv_dup(IoBOTTOM_GV(sstr)); | |
6798 | IoSUBPROCESS(dstr) = IoSUBPROCESS(sstr); | |
6799 | IoTYPE(dstr) = IoTYPE(sstr); | |
6800 | IoFLAGS(dstr) = IoFLAGS(sstr); | |
6801 | break; | |
6802 | case SVt_PVAV: | |
6803 | SvANY(dstr) = new_XPVAV(); | |
6804 | SvCUR(dstr) = SvCUR(sstr); | |
6805 | SvLEN(dstr) = SvLEN(sstr); | |
6806 | SvIVX(dstr) = SvIVX(sstr); | |
6807 | SvNVX(dstr) = SvNVX(sstr); | |
6808 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6809 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6810 | AvARYLEN((AV*)dstr) = sv_dup_inc(AvARYLEN((AV*)sstr)); | |
6811 | AvFLAGS((AV*)dstr) = AvFLAGS((AV*)sstr); | |
6812 | if (AvARRAY((AV*)sstr)) { | |
6813 | SV **dst_ary, **src_ary; | |
6814 | SSize_t items = AvFILLp((AV*)sstr) + 1; | |
6815 | ||
6816 | src_ary = AvARRAY((AV*)sstr); | |
6817 | Newz(0, dst_ary, AvMAX((AV*)sstr)+1, SV*); | |
6818 | ptr_table_store(PL_ptr_table, src_ary, dst_ary); | |
6819 | SvPVX(dstr) = (char*)dst_ary; | |
6820 | AvALLOC((AV*)dstr) = dst_ary; | |
6821 | if (AvREAL((AV*)sstr)) { | |
6822 | while (items-- > 0) | |
6823 | *dst_ary++ = sv_dup_inc(*src_ary++); | |
6824 | } | |
6825 | else { | |
6826 | while (items-- > 0) | |
6827 | *dst_ary++ = sv_dup(*src_ary++); | |
6828 | } | |
6829 | items = AvMAX((AV*)sstr) - AvFILLp((AV*)sstr); | |
6830 | while (items-- > 0) { | |
6831 | *dst_ary++ = &PL_sv_undef; | |
6832 | } | |
6833 | } | |
6834 | else { | |
6835 | SvPVX(dstr) = Nullch; | |
6836 | AvALLOC((AV*)dstr) = (SV**)NULL; | |
6837 | } | |
6838 | break; | |
6839 | case SVt_PVHV: | |
6840 | SvANY(dstr) = new_XPVHV(); | |
6841 | SvCUR(dstr) = SvCUR(sstr); | |
6842 | SvLEN(dstr) = SvLEN(sstr); | |
6843 | SvIVX(dstr) = SvIVX(sstr); | |
6844 | SvNVX(dstr) = SvNVX(sstr); | |
6845 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6846 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6847 | HvRITER((HV*)dstr) = HvRITER((HV*)sstr); | |
6848 | if (HvARRAY((HV*)sstr)) { | |
6849 | HE *entry; | |
6850 | STRLEN i = 0; | |
6851 | XPVHV *dxhv = (XPVHV*)SvANY(dstr); | |
6852 | XPVHV *sxhv = (XPVHV*)SvANY(sstr); | |
6853 | Newz(0, dxhv->xhv_array, | |
6854 | PERL_HV_ARRAY_ALLOC_BYTES(dxhv->xhv_max+1), char); | |
6855 | while (i <= sxhv->xhv_max) { | |
6856 | ((HE**)dxhv->xhv_array)[i] = he_dup(((HE**)sxhv->xhv_array)[i], | |
6857 | !!HvSHAREKEYS(sstr)); | |
6858 | ++i; | |
6859 | } | |
6860 | dxhv->xhv_eiter = he_dup(sxhv->xhv_eiter, !!HvSHAREKEYS(sstr)); | |
6861 | } | |
6862 | else { | |
6863 | SvPVX(dstr) = Nullch; | |
6864 | HvEITER((HV*)dstr) = (HE*)NULL; | |
6865 | } | |
6866 | HvPMROOT((HV*)dstr) = HvPMROOT((HV*)sstr); /* XXX */ | |
6867 | HvNAME((HV*)dstr) = SAVEPV(HvNAME((HV*)sstr)); | |
6868 | break; | |
6869 | case SVt_PVFM: | |
6870 | SvANY(dstr) = new_XPVFM(); | |
6871 | FmLINES(dstr) = FmLINES(sstr); | |
6872 | goto dup_pvcv; | |
6873 | /* NOTREACHED */ | |
6874 | case SVt_PVCV: | |
6875 | SvANY(dstr) = new_XPVCV(); | |
6876 | dup_pvcv: | |
6877 | SvCUR(dstr) = SvCUR(sstr); | |
6878 | SvLEN(dstr) = SvLEN(sstr); | |
6879 | SvIVX(dstr) = SvIVX(sstr); | |
6880 | SvNVX(dstr) = SvNVX(sstr); | |
6881 | SvMAGIC(dstr) = mg_dup(SvMAGIC(sstr)); | |
6882 | SvSTASH(dstr) = hv_dup_inc(SvSTASH(sstr)); | |
6883 | if (SvPVX(sstr) && SvLEN(sstr)) | |
6884 | SvPVX(dstr) = SAVEPVN(SvPVX(sstr), SvLEN(sstr)-1); | |
6885 | else | |
6886 | SvPVX(dstr) = SvPVX(sstr); /* XXX shared string/random ptr? */ | |
6887 | CvSTASH(dstr) = hv_dup(CvSTASH(sstr));/* NOTE: not refcounted */ | |
6888 | CvSTART(dstr) = CvSTART(sstr); | |
6889 | CvROOT(dstr) = OpREFCNT_inc(CvROOT(sstr)); | |
6890 | CvXSUB(dstr) = CvXSUB(sstr); | |
6891 | CvXSUBANY(dstr) = CvXSUBANY(sstr); | |
6892 | CvGV(dstr) = gv_dup_inc(CvGV(sstr)); | |
6893 | CvDEPTH(dstr) = CvDEPTH(sstr); | |
6894 | if (CvPADLIST(sstr) && !AvREAL(CvPADLIST(sstr))) { | |
6895 | /* XXX padlists are real, but pretend to be not */ | |
6896 | AvREAL_on(CvPADLIST(sstr)); | |
6897 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr)); | |
6898 | AvREAL_off(CvPADLIST(sstr)); | |
6899 | AvREAL_off(CvPADLIST(dstr)); | |
6900 | } | |
6901 | else | |
6902 | CvPADLIST(dstr) = av_dup_inc(CvPADLIST(sstr)); | |
6903 | CvOUTSIDE(dstr) = cv_dup_inc(CvOUTSIDE(sstr)); | |
6904 | CvFLAGS(dstr) = CvFLAGS(sstr); | |
6905 | break; | |
6906 | default: | |
6907 | Perl_croak(aTHX_ "Bizarre SvTYPE [%d]", SvTYPE(sstr)); | |
6908 | break; | |
6909 | } | |
6910 | ||
6911 | if (SvOBJECT(dstr) && SvTYPE(dstr) != SVt_PVIO) | |
6912 | ++PL_sv_objcount; | |
6913 | ||
6914 | return dstr; | |
6915 | } | |
6916 | ||
6917 | PERL_CONTEXT * | |
6918 | Perl_cx_dup(pTHX_ PERL_CONTEXT *cxs, I32 ix, I32 max) | |
6919 | { | |
6920 | PERL_CONTEXT *ncxs; | |
6921 | ||
6922 | if (!cxs) | |
6923 | return (PERL_CONTEXT*)NULL; | |
6924 | ||
6925 | /* look for it in the table first */ | |
6926 | ncxs = (PERL_CONTEXT*)ptr_table_fetch(PL_ptr_table, cxs); | |
6927 | if (ncxs) | |
6928 | return ncxs; | |
6929 | ||
6930 | /* create anew and remember what it is */ | |
6931 | Newz(56, ncxs, max + 1, PERL_CONTEXT); | |
6932 | ptr_table_store(PL_ptr_table, cxs, ncxs); | |
6933 | ||
6934 | while (ix >= 0) { | |
6935 | PERL_CONTEXT *cx = &cxs[ix]; | |
6936 | PERL_CONTEXT *ncx = &ncxs[ix]; | |
6937 | ncx->cx_type = cx->cx_type; | |
6938 | if (CxTYPE(cx) == CXt_SUBST) { | |
6939 | Perl_croak(aTHX_ "Cloning substitution context is unimplemented"); | |
6940 | } | |
6941 | else { | |
6942 | ncx->blk_oldsp = cx->blk_oldsp; | |
6943 | ncx->blk_oldcop = cx->blk_oldcop; | |
6944 | ncx->blk_oldretsp = cx->blk_oldretsp; | |
6945 | ncx->blk_oldmarksp = cx->blk_oldmarksp; | |
6946 | ncx->blk_oldscopesp = cx->blk_oldscopesp; | |
6947 | ncx->blk_oldpm = cx->blk_oldpm; | |
6948 | ncx->blk_gimme = cx->blk_gimme; | |
6949 | switch (CxTYPE(cx)) { | |
6950 | case CXt_SUB: | |
6951 | ncx->blk_sub.cv = (cx->blk_sub.olddepth == 0 | |
6952 | ? cv_dup_inc(cx->blk_sub.cv) | |
6953 | : cv_dup(cx->blk_sub.cv)); | |
6954 | ncx->blk_sub.argarray = (cx->blk_sub.hasargs | |
6955 | ? av_dup_inc(cx->blk_sub.argarray) | |
6956 | : Nullav); | |
6957 | ncx->blk_sub.savearray = av_dup(cx->blk_sub.savearray); | |
6958 | ncx->blk_sub.olddepth = cx->blk_sub.olddepth; | |
6959 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
6960 | ncx->blk_sub.lval = cx->blk_sub.lval; | |
6961 | break; | |
6962 | case CXt_EVAL: | |
6963 | ncx->blk_eval.old_in_eval = cx->blk_eval.old_in_eval; | |
6964 | ncx->blk_eval.old_op_type = cx->blk_eval.old_op_type; | |
0f79a09d | 6965 | ncx->blk_eval.old_namesv = sv_dup_inc(cx->blk_eval.old_namesv); |
1d7c1841 GS |
6966 | ncx->blk_eval.old_eval_root = cx->blk_eval.old_eval_root; |
6967 | ncx->blk_eval.cur_text = sv_dup(cx->blk_eval.cur_text); | |
6968 | break; | |
6969 | case CXt_LOOP: | |
6970 | ncx->blk_loop.label = cx->blk_loop.label; | |
6971 | ncx->blk_loop.resetsp = cx->blk_loop.resetsp; | |
6972 | ncx->blk_loop.redo_op = cx->blk_loop.redo_op; | |
6973 | ncx->blk_loop.next_op = cx->blk_loop.next_op; | |
6974 | ncx->blk_loop.last_op = cx->blk_loop.last_op; | |
6975 | ncx->blk_loop.iterdata = (CxPADLOOP(cx) | |
6976 | ? cx->blk_loop.iterdata | |
6977 | : gv_dup((GV*)cx->blk_loop.iterdata)); | |
6978 | ncx->blk_loop.itersave = sv_dup_inc(cx->blk_loop.itersave); | |
6979 | ncx->blk_loop.iterlval = sv_dup_inc(cx->blk_loop.iterlval); | |
6980 | ncx->blk_loop.iterary = av_dup_inc(cx->blk_loop.iterary); | |
6981 | ncx->blk_loop.iterix = cx->blk_loop.iterix; | |
6982 | ncx->blk_loop.itermax = cx->blk_loop.itermax; | |
6983 | break; | |
6984 | case CXt_FORMAT: | |
6985 | ncx->blk_sub.cv = cv_dup(cx->blk_sub.cv); | |
6986 | ncx->blk_sub.gv = gv_dup(cx->blk_sub.gv); | |
6987 | ncx->blk_sub.dfoutgv = gv_dup_inc(cx->blk_sub.dfoutgv); | |
6988 | ncx->blk_sub.hasargs = cx->blk_sub.hasargs; | |
6989 | break; | |
6990 | case CXt_BLOCK: | |
6991 | case CXt_NULL: | |
6992 | break; | |
6993 | } | |
6994 | } | |
6995 | --ix; | |
6996 | } | |
6997 | return ncxs; | |
6998 | } | |
6999 | ||
7000 | PERL_SI * | |
7001 | Perl_si_dup(pTHX_ PERL_SI *si) | |
7002 | { | |
7003 | PERL_SI *nsi; | |
7004 | ||
7005 | if (!si) | |
7006 | return (PERL_SI*)NULL; | |
7007 | ||
7008 | /* look for it in the table first */ | |
7009 | nsi = (PERL_SI*)ptr_table_fetch(PL_ptr_table, si); | |
7010 | if (nsi) | |
7011 | return nsi; | |
7012 | ||
7013 | /* create anew and remember what it is */ | |
7014 | Newz(56, nsi, 1, PERL_SI); | |
7015 | ptr_table_store(PL_ptr_table, si, nsi); | |
7016 | ||
7017 | nsi->si_stack = av_dup_inc(si->si_stack); | |
7018 | nsi->si_cxix = si->si_cxix; | |
7019 | nsi->si_cxmax = si->si_cxmax; | |
7020 | nsi->si_cxstack = cx_dup(si->si_cxstack, si->si_cxix, si->si_cxmax); | |
7021 | nsi->si_type = si->si_type; | |
7022 | nsi->si_prev = si_dup(si->si_prev); | |
7023 | nsi->si_next = si_dup(si->si_next); | |
7024 | nsi->si_markoff = si->si_markoff; | |
7025 | ||
7026 | return nsi; | |
7027 | } | |
7028 | ||
7029 | #define POPINT(ss,ix) ((ss)[--(ix)].any_i32) | |
7030 | #define TOPINT(ss,ix) ((ss)[ix].any_i32) | |
7031 | #define POPLONG(ss,ix) ((ss)[--(ix)].any_long) | |
7032 | #define TOPLONG(ss,ix) ((ss)[ix].any_long) | |
7033 | #define POPIV(ss,ix) ((ss)[--(ix)].any_iv) | |
7034 | #define TOPIV(ss,ix) ((ss)[ix].any_iv) | |
7035 | #define POPPTR(ss,ix) ((ss)[--(ix)].any_ptr) | |
7036 | #define TOPPTR(ss,ix) ((ss)[ix].any_ptr) | |
7037 | #define POPDPTR(ss,ix) ((ss)[--(ix)].any_dptr) | |
7038 | #define TOPDPTR(ss,ix) ((ss)[ix].any_dptr) | |
7039 | #define POPDXPTR(ss,ix) ((ss)[--(ix)].any_dxptr) | |
7040 | #define TOPDXPTR(ss,ix) ((ss)[ix].any_dxptr) | |
7041 | ||
7042 | /* XXXXX todo */ | |
7043 | #define pv_dup_inc(p) SAVEPV(p) | |
7044 | #define pv_dup(p) SAVEPV(p) | |
7045 | #define svp_dup_inc(p,pp) any_dup(p,pp) | |
7046 | ||
7047 | void * | |
7048 | Perl_any_dup(pTHX_ void *v, PerlInterpreter *proto_perl) | |
7049 | { | |
7050 | void *ret; | |
7051 | ||
7052 | if (!v) | |
7053 | return (void*)NULL; | |
7054 | ||
7055 | /* look for it in the table first */ | |
7056 | ret = ptr_table_fetch(PL_ptr_table, v); | |
7057 | if (ret) | |
7058 | return ret; | |
7059 | ||
7060 | /* see if it is part of the interpreter structure */ | |
7061 | if (v >= (void*)proto_perl && v < (void*)(proto_perl+1)) | |
7062 | ret = (void*)(((char*)aTHXo) + (((char*)v) - (char*)proto_perl)); | |
7063 | else | |
7064 | ret = v; | |
7065 | ||
7066 | return ret; | |
7067 | } | |
7068 | ||
7069 | ANY * | |
7070 | Perl_ss_dup(pTHX_ PerlInterpreter *proto_perl) | |
7071 | { | |
7072 | ANY *ss = proto_perl->Tsavestack; | |
7073 | I32 ix = proto_perl->Tsavestack_ix; | |
7074 | I32 max = proto_perl->Tsavestack_max; | |
7075 | ANY *nss; | |
7076 | SV *sv; | |
7077 | GV *gv; | |
7078 | AV *av; | |
7079 | HV *hv; | |
7080 | void* ptr; | |
7081 | int intval; | |
7082 | long longval; | |
7083 | GP *gp; | |
7084 | IV iv; | |
7085 | I32 i; | |
7086 | char *c; | |
7087 | void (*dptr) (void*); | |
7088 | void (*dxptr) (pTHXo_ void*); | |
7089 | ||
7090 | Newz(54, nss, max, ANY); | |
7091 | ||
7092 | while (ix > 0) { | |
7093 | i = POPINT(ss,ix); | |
7094 | TOPINT(nss,ix) = i; | |
7095 | switch (i) { | |
7096 | case SAVEt_ITEM: /* normal string */ | |
7097 | sv = (SV*)POPPTR(ss,ix); | |
7098 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7099 | sv = (SV*)POPPTR(ss,ix); | |
7100 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7101 | break; | |
7102 | case SAVEt_SV: /* scalar reference */ | |
7103 | sv = (SV*)POPPTR(ss,ix); | |
7104 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7105 | gv = (GV*)POPPTR(ss,ix); | |
7106 | TOPPTR(nss,ix) = gv_dup_inc(gv); | |
7107 | break; | |
7108 | case SAVEt_GENERIC_SVREF: /* generic sv */ | |
7109 | case SAVEt_SVREF: /* scalar reference */ | |
7110 | sv = (SV*)POPPTR(ss,ix); | |
7111 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7112 | ptr = POPPTR(ss,ix); | |
7113 | TOPPTR(nss,ix) = svp_dup_inc((SV**)ptr, proto_perl);/* XXXXX */ | |
7114 | break; | |
7115 | case SAVEt_AV: /* array reference */ | |
7116 | av = (AV*)POPPTR(ss,ix); | |
7117 | TOPPTR(nss,ix) = av_dup_inc(av); | |
7118 | gv = (GV*)POPPTR(ss,ix); | |
7119 | TOPPTR(nss,ix) = gv_dup(gv); | |
7120 | break; | |
7121 | case SAVEt_HV: /* hash reference */ | |
7122 | hv = (HV*)POPPTR(ss,ix); | |
7123 | TOPPTR(nss,ix) = hv_dup_inc(hv); | |
7124 | gv = (GV*)POPPTR(ss,ix); | |
7125 | TOPPTR(nss,ix) = gv_dup(gv); | |
7126 | break; | |
7127 | case SAVEt_INT: /* int reference */ | |
7128 | ptr = POPPTR(ss,ix); | |
7129 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7130 | intval = (int)POPINT(ss,ix); | |
7131 | TOPINT(nss,ix) = intval; | |
7132 | break; | |
7133 | case SAVEt_LONG: /* long reference */ | |
7134 | ptr = POPPTR(ss,ix); | |
7135 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7136 | longval = (long)POPLONG(ss,ix); | |
7137 | TOPLONG(nss,ix) = longval; | |
7138 | break; | |
7139 | case SAVEt_I32: /* I32 reference */ | |
7140 | case SAVEt_I16: /* I16 reference */ | |
7141 | case SAVEt_I8: /* I8 reference */ | |
7142 | ptr = POPPTR(ss,ix); | |
7143 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7144 | i = POPINT(ss,ix); | |
7145 | TOPINT(nss,ix) = i; | |
7146 | break; | |
7147 | case SAVEt_IV: /* IV reference */ | |
7148 | ptr = POPPTR(ss,ix); | |
7149 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7150 | iv = POPIV(ss,ix); | |
7151 | TOPIV(nss,ix) = iv; | |
7152 | break; | |
7153 | case SAVEt_SPTR: /* SV* reference */ | |
7154 | ptr = POPPTR(ss,ix); | |
7155 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7156 | sv = (SV*)POPPTR(ss,ix); | |
7157 | TOPPTR(nss,ix) = sv_dup(sv); | |
7158 | break; | |
7159 | case SAVEt_VPTR: /* random* reference */ | |
7160 | ptr = POPPTR(ss,ix); | |
7161 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7162 | ptr = POPPTR(ss,ix); | |
7163 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7164 | break; | |
7165 | case SAVEt_PPTR: /* char* reference */ | |
7166 | ptr = POPPTR(ss,ix); | |
7167 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7168 | c = (char*)POPPTR(ss,ix); | |
7169 | TOPPTR(nss,ix) = pv_dup(c); | |
7170 | break; | |
7171 | case SAVEt_HPTR: /* HV* reference */ | |
7172 | ptr = POPPTR(ss,ix); | |
7173 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7174 | hv = (HV*)POPPTR(ss,ix); | |
7175 | TOPPTR(nss,ix) = hv_dup(hv); | |
7176 | break; | |
7177 | case SAVEt_APTR: /* AV* reference */ | |
7178 | ptr = POPPTR(ss,ix); | |
7179 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7180 | av = (AV*)POPPTR(ss,ix); | |
7181 | TOPPTR(nss,ix) = av_dup(av); | |
7182 | break; | |
7183 | case SAVEt_NSTAB: | |
7184 | gv = (GV*)POPPTR(ss,ix); | |
7185 | TOPPTR(nss,ix) = gv_dup(gv); | |
7186 | break; | |
7187 | case SAVEt_GP: /* scalar reference */ | |
7188 | gp = (GP*)POPPTR(ss,ix); | |
7189 | TOPPTR(nss,ix) = gp = gp_dup(gp); | |
7190 | (void)GpREFCNT_inc(gp); | |
7191 | gv = (GV*)POPPTR(ss,ix); | |
7192 | TOPPTR(nss,ix) = gv_dup_inc(c); | |
7193 | c = (char*)POPPTR(ss,ix); | |
7194 | TOPPTR(nss,ix) = pv_dup(c); | |
7195 | iv = POPIV(ss,ix); | |
7196 | TOPIV(nss,ix) = iv; | |
7197 | iv = POPIV(ss,ix); | |
7198 | TOPIV(nss,ix) = iv; | |
7199 | break; | |
7200 | case SAVEt_FREESV: | |
7201 | sv = (SV*)POPPTR(ss,ix); | |
7202 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7203 | break; | |
7204 | case SAVEt_FREEOP: | |
7205 | ptr = POPPTR(ss,ix); | |
7206 | if (ptr && (((OP*)ptr)->op_private & OPpREFCOUNTED)) { | |
7207 | /* these are assumed to be refcounted properly */ | |
7208 | switch (((OP*)ptr)->op_type) { | |
7209 | case OP_LEAVESUB: | |
7210 | case OP_LEAVESUBLV: | |
7211 | case OP_LEAVEEVAL: | |
7212 | case OP_LEAVE: | |
7213 | case OP_SCOPE: | |
7214 | case OP_LEAVEWRITE: | |
7215 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); | |
7216 | break; | |
7217 | default: | |
7218 | TOPPTR(nss,ix) = Nullop; | |
7219 | break; | |
7220 | } | |
7221 | } | |
7222 | else | |
7223 | TOPPTR(nss,ix) = Nullop; | |
7224 | break; | |
7225 | case SAVEt_FREEPV: | |
7226 | c = (char*)POPPTR(ss,ix); | |
7227 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
7228 | break; | |
7229 | case SAVEt_CLEARSV: | |
7230 | longval = POPLONG(ss,ix); | |
7231 | TOPLONG(nss,ix) = longval; | |
7232 | break; | |
7233 | case SAVEt_DELETE: | |
7234 | hv = (HV*)POPPTR(ss,ix); | |
7235 | TOPPTR(nss,ix) = hv_dup_inc(hv); | |
7236 | c = (char*)POPPTR(ss,ix); | |
7237 | TOPPTR(nss,ix) = pv_dup_inc(c); | |
7238 | i = POPINT(ss,ix); | |
7239 | TOPINT(nss,ix) = i; | |
7240 | break; | |
7241 | case SAVEt_DESTRUCTOR: | |
7242 | ptr = POPPTR(ss,ix); | |
7243 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
7244 | dptr = POPDPTR(ss,ix); | |
7245 | TOPDPTR(nss,ix) = (void (*)(void*))any_dup(dptr, proto_perl); | |
7246 | break; | |
7247 | case SAVEt_DESTRUCTOR_X: | |
7248 | ptr = POPPTR(ss,ix); | |
7249 | TOPPTR(nss,ix) = any_dup(ptr, proto_perl); /* XXX quite arbitrary */ | |
7250 | dxptr = POPDXPTR(ss,ix); | |
7251 | TOPDXPTR(nss,ix) = (void (*)(pTHXo_ void*))any_dup(dxptr, proto_perl); | |
7252 | break; | |
7253 | case SAVEt_REGCONTEXT: | |
7254 | case SAVEt_ALLOC: | |
7255 | i = POPINT(ss,ix); | |
7256 | TOPINT(nss,ix) = i; | |
7257 | ix -= i; | |
7258 | break; | |
7259 | case SAVEt_STACK_POS: /* Position on Perl stack */ | |
7260 | i = POPINT(ss,ix); | |
7261 | TOPINT(nss,ix) = i; | |
7262 | break; | |
7263 | case SAVEt_AELEM: /* array element */ | |
7264 | sv = (SV*)POPPTR(ss,ix); | |
7265 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7266 | i = POPINT(ss,ix); | |
7267 | TOPINT(nss,ix) = i; | |
7268 | av = (AV*)POPPTR(ss,ix); | |
7269 | TOPPTR(nss,ix) = av_dup_inc(av); | |
7270 | break; | |
7271 | case SAVEt_HELEM: /* hash element */ | |
7272 | sv = (SV*)POPPTR(ss,ix); | |
7273 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7274 | sv = (SV*)POPPTR(ss,ix); | |
7275 | TOPPTR(nss,ix) = sv_dup_inc(sv); | |
7276 | hv = (HV*)POPPTR(ss,ix); | |
7277 | TOPPTR(nss,ix) = hv_dup_inc(hv); | |
7278 | break; | |
7279 | case SAVEt_OP: | |
7280 | ptr = POPPTR(ss,ix); | |
7281 | TOPPTR(nss,ix) = ptr; | |
7282 | break; | |
7283 | case SAVEt_HINTS: | |
7284 | i = POPINT(ss,ix); | |
7285 | TOPINT(nss,ix) = i; | |
7286 | break; | |
c4410b1b GS |
7287 | case SAVEt_COMPPAD: |
7288 | av = (AV*)POPPTR(ss,ix); | |
7289 | TOPPTR(nss,ix) = av_dup(av); | |
7290 | break; | |
1d7c1841 GS |
7291 | default: |
7292 | Perl_croak(aTHX_ "panic: ss_dup inconsistency"); | |
7293 | } | |
7294 | } | |
7295 | ||
7296 | return nss; | |
7297 | } | |
7298 | ||
7299 | #ifdef PERL_OBJECT | |
7300 | #include "XSUB.h" | |
7301 | #endif | |
7302 | ||
7303 | PerlInterpreter * | |
7304 | perl_clone(PerlInterpreter *proto_perl, UV flags) | |
7305 | { | |
7306 | #ifdef PERL_OBJECT | |
7307 | CPerlObj *pPerl = (CPerlObj*)proto_perl; | |
7308 | #endif | |
7309 | ||
7310 | #ifdef PERL_IMPLICIT_SYS | |
7311 | return perl_clone_using(proto_perl, flags, | |
7312 | proto_perl->IMem, | |
7313 | proto_perl->IMemShared, | |
7314 | proto_perl->IMemParse, | |
7315 | proto_perl->IEnv, | |
7316 | proto_perl->IStdIO, | |
7317 | proto_perl->ILIO, | |
7318 | proto_perl->IDir, | |
7319 | proto_perl->ISock, | |
7320 | proto_perl->IProc); | |
7321 | } | |
7322 | ||
7323 | PerlInterpreter * | |
7324 | perl_clone_using(PerlInterpreter *proto_perl, UV flags, | |
7325 | struct IPerlMem* ipM, struct IPerlMem* ipMS, | |
7326 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
7327 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
7328 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
7329 | struct IPerlProc* ipP) | |
7330 | { | |
7331 | /* XXX many of the string copies here can be optimized if they're | |
7332 | * constants; they need to be allocated as common memory and just | |
7333 | * their pointers copied. */ | |
7334 | ||
7335 | IV i; | |
7336 | SV *sv; | |
7337 | SV **svp; | |
7338 | # ifdef PERL_OBJECT | |
7339 | CPerlObj *pPerl = new(ipM) CPerlObj(ipM, ipMS, ipMP, ipE, ipStd, ipLIO, | |
7340 | ipD, ipS, ipP); | |
7341 | PERL_SET_INTERP(pPerl); | |
7342 | # else /* !PERL_OBJECT */ | |
7343 | PerlInterpreter *my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); | |
7344 | PERL_SET_INTERP(my_perl); | |
7345 | ||
7346 | # ifdef DEBUGGING | |
7347 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
7348 | PL_markstack = 0; | |
7349 | PL_scopestack = 0; | |
7350 | PL_savestack = 0; | |
7351 | PL_retstack = 0; | |
7352 | # else /* !DEBUGGING */ | |
7353 | Zero(my_perl, 1, PerlInterpreter); | |
7354 | # endif /* DEBUGGING */ | |
7355 | ||
7356 | /* host pointers */ | |
7357 | PL_Mem = ipM; | |
7358 | PL_MemShared = ipMS; | |
7359 | PL_MemParse = ipMP; | |
7360 | PL_Env = ipE; | |
7361 | PL_StdIO = ipStd; | |
7362 | PL_LIO = ipLIO; | |
7363 | PL_Dir = ipD; | |
7364 | PL_Sock = ipS; | |
7365 | PL_Proc = ipP; | |
7366 | # endif /* PERL_OBJECT */ | |
7367 | #else /* !PERL_IMPLICIT_SYS */ | |
7368 | IV i; | |
7369 | SV *sv; | |
7370 | SV **svp; | |
7371 | PerlInterpreter *my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); | |
7372 | PERL_SET_INTERP(my_perl); | |
7373 | ||
7374 | # ifdef DEBUGGING | |
7375 | memset(my_perl, 0xab, sizeof(PerlInterpreter)); | |
7376 | PL_markstack = 0; | |
7377 | PL_scopestack = 0; | |
7378 | PL_savestack = 0; | |
7379 | PL_retstack = 0; | |
7380 | # else /* !DEBUGGING */ | |
7381 | Zero(my_perl, 1, PerlInterpreter); | |
7382 | # endif /* DEBUGGING */ | |
7383 | #endif /* PERL_IMPLICIT_SYS */ | |
7384 | ||
7385 | /* arena roots */ | |
7386 | PL_xiv_arenaroot = NULL; | |
7387 | PL_xiv_root = NULL; | |
7388 | PL_xnv_root = NULL; | |
7389 | PL_xrv_root = NULL; | |
7390 | PL_xpv_root = NULL; | |
7391 | PL_xpviv_root = NULL; | |
7392 | PL_xpvnv_root = NULL; | |
7393 | PL_xpvcv_root = NULL; | |
7394 | PL_xpvav_root = NULL; | |
7395 | PL_xpvhv_root = NULL; | |
7396 | PL_xpvmg_root = NULL; | |
7397 | PL_xpvlv_root = NULL; | |
7398 | PL_xpvbm_root = NULL; | |
7399 | PL_he_root = NULL; | |
7400 | PL_nice_chunk = NULL; | |
7401 | PL_nice_chunk_size = 0; | |
7402 | PL_sv_count = 0; | |
7403 | PL_sv_objcount = 0; | |
7404 | PL_sv_root = Nullsv; | |
7405 | PL_sv_arenaroot = Nullsv; | |
7406 | ||
7407 | PL_debug = proto_perl->Idebug; | |
7408 | ||
7409 | /* create SV map for pointer relocation */ | |
7410 | PL_ptr_table = ptr_table_new(); | |
7411 | ||
7412 | /* initialize these special pointers as early as possible */ | |
7413 | SvANY(&PL_sv_undef) = NULL; | |
7414 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
7415 | SvFLAGS(&PL_sv_undef) = SVf_READONLY|SVt_NULL; | |
7416 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_undef, &PL_sv_undef); | |
7417 | ||
7418 | #ifdef PERL_OBJECT | |
7419 | SvUPGRADE(&PL_sv_no, SVt_PVNV); | |
7420 | #else | |
7421 | SvANY(&PL_sv_no) = new_XPVNV(); | |
7422 | #endif | |
7423 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
7424 | SvFLAGS(&PL_sv_no) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
7425 | SvPVX(&PL_sv_no) = SAVEPVN(PL_No, 0); | |
7426 | SvCUR(&PL_sv_no) = 0; | |
7427 | SvLEN(&PL_sv_no) = 1; | |
7428 | SvNVX(&PL_sv_no) = 0; | |
7429 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_no, &PL_sv_no); | |
7430 | ||
7431 | #ifdef PERL_OBJECT | |
7432 | SvUPGRADE(&PL_sv_yes, SVt_PVNV); | |
7433 | #else | |
7434 | SvANY(&PL_sv_yes) = new_XPVNV(); | |
7435 | #endif | |
7436 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
7437 | SvFLAGS(&PL_sv_yes) = SVp_NOK|SVf_NOK|SVp_POK|SVf_POK|SVf_READONLY|SVt_PVNV; | |
7438 | SvPVX(&PL_sv_yes) = SAVEPVN(PL_Yes, 1); | |
7439 | SvCUR(&PL_sv_yes) = 1; | |
7440 | SvLEN(&PL_sv_yes) = 2; | |
7441 | SvNVX(&PL_sv_yes) = 1; | |
7442 | ptr_table_store(PL_ptr_table, &proto_perl->Isv_yes, &PL_sv_yes); | |
7443 | ||
7444 | /* create shared string table */ | |
7445 | PL_strtab = newHV(); | |
7446 | HvSHAREKEYS_off(PL_strtab); | |
7447 | hv_ksplit(PL_strtab, 512); | |
7448 | ptr_table_store(PL_ptr_table, proto_perl->Istrtab, PL_strtab); | |
7449 | ||
7450 | PL_compiling = proto_perl->Icompiling; | |
7451 | PL_compiling.cop_stashpv = SAVEPV(PL_compiling.cop_stashpv); | |
7452 | PL_compiling.cop_file = SAVEPV(PL_compiling.cop_file); | |
7453 | ptr_table_store(PL_ptr_table, &proto_perl->Icompiling, &PL_compiling); | |
7454 | if (!specialWARN(PL_compiling.cop_warnings)) | |
7455 | PL_compiling.cop_warnings = sv_dup_inc(PL_compiling.cop_warnings); | |
7456 | PL_curcop = (COP*)any_dup(proto_perl->Tcurcop, proto_perl); | |
7457 | ||
7458 | /* pseudo environmental stuff */ | |
7459 | PL_origargc = proto_perl->Iorigargc; | |
7460 | i = PL_origargc; | |
7461 | New(0, PL_origargv, i+1, char*); | |
7462 | PL_origargv[i] = '\0'; | |
7463 | while (i-- > 0) { | |
7464 | PL_origargv[i] = SAVEPV(proto_perl->Iorigargv[i]); | |
7465 | } | |
7466 | PL_envgv = gv_dup(proto_perl->Ienvgv); | |
7467 | PL_incgv = gv_dup(proto_perl->Iincgv); | |
7468 | PL_hintgv = gv_dup(proto_perl->Ihintgv); | |
7469 | PL_origfilename = SAVEPV(proto_perl->Iorigfilename); | |
7470 | PL_diehook = sv_dup_inc(proto_perl->Idiehook); | |
7471 | PL_warnhook = sv_dup_inc(proto_perl->Iwarnhook); | |
7472 | ||
7473 | /* switches */ | |
7474 | PL_minus_c = proto_perl->Iminus_c; | |
a7cb1f99 | 7475 | PL_patchlevel = sv_dup_inc(proto_perl->Ipatchlevel); |
1d7c1841 GS |
7476 | PL_localpatches = proto_perl->Ilocalpatches; |
7477 | PL_splitstr = proto_perl->Isplitstr; | |
7478 | PL_preprocess = proto_perl->Ipreprocess; | |
7479 | PL_minus_n = proto_perl->Iminus_n; | |
7480 | PL_minus_p = proto_perl->Iminus_p; | |
7481 | PL_minus_l = proto_perl->Iminus_l; | |
7482 | PL_minus_a = proto_perl->Iminus_a; | |
7483 | PL_minus_F = proto_perl->Iminus_F; | |
7484 | PL_doswitches = proto_perl->Idoswitches; | |
7485 | PL_dowarn = proto_perl->Idowarn; | |
7486 | PL_doextract = proto_perl->Idoextract; | |
7487 | PL_sawampersand = proto_perl->Isawampersand; | |
7488 | PL_unsafe = proto_perl->Iunsafe; | |
7489 | PL_inplace = SAVEPV(proto_perl->Iinplace); | |
7490 | PL_e_script = sv_dup_inc(proto_perl->Ie_script); | |
7491 | PL_perldb = proto_perl->Iperldb; | |
7492 | PL_perl_destruct_level = proto_perl->Iperl_destruct_level; | |
7493 | ||
7494 | /* magical thingies */ | |
7495 | /* XXX time(&PL_basetime) when asked for? */ | |
7496 | PL_basetime = proto_perl->Ibasetime; | |
7497 | PL_formfeed = sv_dup(proto_perl->Iformfeed); | |
7498 | ||
7499 | PL_maxsysfd = proto_perl->Imaxsysfd; | |
7500 | PL_multiline = proto_perl->Imultiline; | |
7501 | PL_statusvalue = proto_perl->Istatusvalue; | |
7502 | #ifdef VMS | |
7503 | PL_statusvalue_vms = proto_perl->Istatusvalue_vms; | |
7504 | #endif | |
7505 | ||
7506 | /* shortcuts to various I/O objects */ | |
7507 | PL_stdingv = gv_dup(proto_perl->Istdingv); | |
7508 | PL_stderrgv = gv_dup(proto_perl->Istderrgv); | |
7509 | PL_defgv = gv_dup(proto_perl->Idefgv); | |
7510 | PL_argvgv = gv_dup(proto_perl->Iargvgv); | |
7511 | PL_argvoutgv = gv_dup(proto_perl->Iargvoutgv); | |
7512 | PL_argvout_stack = av_dup(proto_perl->Iargvout_stack); | |
7513 | ||
7514 | /* shortcuts to regexp stuff */ | |
7515 | PL_replgv = gv_dup(proto_perl->Ireplgv); | |
7516 | ||
7517 | /* shortcuts to misc objects */ | |
7518 | PL_errgv = gv_dup(proto_perl->Ierrgv); | |
7519 | ||
7520 | /* shortcuts to debugging objects */ | |
7521 | PL_DBgv = gv_dup(proto_perl->IDBgv); | |
7522 | PL_DBline = gv_dup(proto_perl->IDBline); | |
7523 | PL_DBsub = gv_dup(proto_perl->IDBsub); | |
7524 | PL_DBsingle = sv_dup(proto_perl->IDBsingle); | |
7525 | PL_DBtrace = sv_dup(proto_perl->IDBtrace); | |
7526 | PL_DBsignal = sv_dup(proto_perl->IDBsignal); | |
7527 | PL_lineary = av_dup(proto_perl->Ilineary); | |
7528 | PL_dbargs = av_dup(proto_perl->Idbargs); | |
7529 | ||
7530 | /* symbol tables */ | |
7531 | PL_defstash = hv_dup_inc(proto_perl->Tdefstash); | |
7532 | PL_curstash = hv_dup(proto_perl->Tcurstash); | |
7533 | PL_debstash = hv_dup(proto_perl->Idebstash); | |
7534 | PL_globalstash = hv_dup(proto_perl->Iglobalstash); | |
7535 | PL_curstname = sv_dup_inc(proto_perl->Icurstname); | |
7536 | ||
7537 | PL_beginav = av_dup_inc(proto_perl->Ibeginav); | |
7538 | PL_endav = av_dup_inc(proto_perl->Iendav); | |
7d30b5c4 | 7539 | PL_checkav = av_dup_inc(proto_perl->Icheckav); |
1d7c1841 GS |
7540 | PL_initav = av_dup_inc(proto_perl->Iinitav); |
7541 | ||
7542 | PL_sub_generation = proto_perl->Isub_generation; | |
7543 | ||
7544 | /* funky return mechanisms */ | |
7545 | PL_forkprocess = proto_perl->Iforkprocess; | |
7546 | ||
7547 | /* subprocess state */ | |
7548 | PL_fdpid = av_dup_inc(proto_perl->Ifdpid); | |
7549 | ||
7550 | /* internal state */ | |
7551 | PL_tainting = proto_perl->Itainting; | |
7552 | PL_maxo = proto_perl->Imaxo; | |
7553 | if (proto_perl->Iop_mask) | |
7554 | PL_op_mask = SAVEPVN(proto_perl->Iop_mask, PL_maxo); | |
7555 | else | |
7556 | PL_op_mask = Nullch; | |
7557 | ||
7558 | /* current interpreter roots */ | |
7559 | PL_main_cv = cv_dup_inc(proto_perl->Imain_cv); | |
7560 | PL_main_root = OpREFCNT_inc(proto_perl->Imain_root); | |
7561 | PL_main_start = proto_perl->Imain_start; | |
7562 | PL_eval_root = OpREFCNT_inc(proto_perl->Ieval_root); | |
7563 | PL_eval_start = proto_perl->Ieval_start; | |
7564 | ||
7565 | /* runtime control stuff */ | |
7566 | PL_curcopdb = (COP*)any_dup(proto_perl->Icurcopdb, proto_perl); | |
7567 | PL_copline = proto_perl->Icopline; | |
7568 | ||
7569 | PL_filemode = proto_perl->Ifilemode; | |
7570 | PL_lastfd = proto_perl->Ilastfd; | |
7571 | PL_oldname = proto_perl->Ioldname; /* XXX not quite right */ | |
7572 | PL_Argv = NULL; | |
7573 | PL_Cmd = Nullch; | |
7574 | PL_gensym = proto_perl->Igensym; | |
7575 | PL_preambled = proto_perl->Ipreambled; | |
7576 | PL_preambleav = av_dup_inc(proto_perl->Ipreambleav); | |
7577 | PL_laststatval = proto_perl->Ilaststatval; | |
7578 | PL_laststype = proto_perl->Ilaststype; | |
7579 | PL_mess_sv = Nullsv; | |
7580 | ||
7581 | PL_orslen = proto_perl->Iorslen; | |
7582 | PL_ors = SAVEPVN(proto_perl->Iors, PL_orslen); | |
7583 | PL_ofmt = SAVEPV(proto_perl->Iofmt); | |
7584 | ||
7585 | /* interpreter atexit processing */ | |
7586 | PL_exitlistlen = proto_perl->Iexitlistlen; | |
7587 | if (PL_exitlistlen) { | |
7588 | New(0, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
7589 | Copy(proto_perl->Iexitlist, PL_exitlist, PL_exitlistlen, PerlExitListEntry); | |
7590 | } | |
7591 | else | |
7592 | PL_exitlist = (PerlExitListEntry*)NULL; | |
7593 | PL_modglobal = hv_dup_inc(proto_perl->Imodglobal); | |
7594 | ||
7595 | PL_profiledata = NULL; | |
7596 | PL_rsfp = fp_dup(proto_perl->Irsfp, '<'); | |
7597 | /* PL_rsfp_filters entries have fake IoDIRP() */ | |
7598 | PL_rsfp_filters = av_dup_inc(proto_perl->Irsfp_filters); | |
7599 | ||
7600 | PL_compcv = cv_dup(proto_perl->Icompcv); | |
7601 | PL_comppad = av_dup(proto_perl->Icomppad); | |
7602 | PL_comppad_name = av_dup(proto_perl->Icomppad_name); | |
7603 | PL_comppad_name_fill = proto_perl->Icomppad_name_fill; | |
7604 | PL_comppad_name_floor = proto_perl->Icomppad_name_floor; | |
7605 | PL_curpad = (SV**)ptr_table_fetch(PL_ptr_table, | |
7606 | proto_perl->Tcurpad); | |
7607 | ||
7608 | #ifdef HAVE_INTERP_INTERN | |
7609 | sys_intern_dup(&proto_perl->Isys_intern, &PL_sys_intern); | |
7610 | #endif | |
7611 | ||
7612 | /* more statics moved here */ | |
7613 | PL_generation = proto_perl->Igeneration; | |
7614 | PL_DBcv = cv_dup(proto_perl->IDBcv); | |
1d7c1841 GS |
7615 | |
7616 | PL_in_clean_objs = proto_perl->Iin_clean_objs; | |
7617 | PL_in_clean_all = proto_perl->Iin_clean_all; | |
7618 | ||
7619 | PL_uid = proto_perl->Iuid; | |
7620 | PL_euid = proto_perl->Ieuid; | |
7621 | PL_gid = proto_perl->Igid; | |
7622 | PL_egid = proto_perl->Iegid; | |
7623 | PL_nomemok = proto_perl->Inomemok; | |
7624 | PL_an = proto_perl->Ian; | |
7625 | PL_cop_seqmax = proto_perl->Icop_seqmax; | |
7626 | PL_op_seqmax = proto_perl->Iop_seqmax; | |
7627 | PL_evalseq = proto_perl->Ievalseq; | |
7628 | PL_origenviron = proto_perl->Iorigenviron; /* XXX not quite right */ | |
7629 | PL_origalen = proto_perl->Iorigalen; | |
7630 | PL_pidstatus = newHV(); /* XXX flag for cloning? */ | |
7631 | PL_osname = SAVEPV(proto_perl->Iosname); | |
7632 | PL_sh_path = SAVEPV(proto_perl->Ish_path); | |
7633 | PL_sighandlerp = proto_perl->Isighandlerp; | |
7634 | ||
7635 | ||
7636 | PL_runops = proto_perl->Irunops; | |
7637 | ||
7638 | Copy(proto_perl->Itokenbuf, PL_tokenbuf, 256, char); | |
7639 | ||
7640 | #ifdef CSH | |
7641 | PL_cshlen = proto_perl->Icshlen; | |
7642 | PL_cshname = SAVEPVN(proto_perl->Icshname, PL_cshlen); | |
7643 | #endif | |
7644 | ||
7645 | PL_lex_state = proto_perl->Ilex_state; | |
7646 | PL_lex_defer = proto_perl->Ilex_defer; | |
7647 | PL_lex_expect = proto_perl->Ilex_expect; | |
7648 | PL_lex_formbrack = proto_perl->Ilex_formbrack; | |
7649 | PL_lex_dojoin = proto_perl->Ilex_dojoin; | |
7650 | PL_lex_starts = proto_perl->Ilex_starts; | |
7651 | PL_lex_stuff = sv_dup_inc(proto_perl->Ilex_stuff); | |
7652 | PL_lex_repl = sv_dup_inc(proto_perl->Ilex_repl); | |
7653 | PL_lex_op = proto_perl->Ilex_op; | |
7654 | PL_lex_inpat = proto_perl->Ilex_inpat; | |
7655 | PL_lex_inwhat = proto_perl->Ilex_inwhat; | |
7656 | PL_lex_brackets = proto_perl->Ilex_brackets; | |
7657 | i = (PL_lex_brackets < 120 ? 120 : PL_lex_brackets); | |
7658 | PL_lex_brackstack = SAVEPVN(proto_perl->Ilex_brackstack,i); | |
7659 | PL_lex_casemods = proto_perl->Ilex_casemods; | |
7660 | i = (PL_lex_casemods < 12 ? 12 : PL_lex_casemods); | |
7661 | PL_lex_casestack = SAVEPVN(proto_perl->Ilex_casestack,i); | |
7662 | ||
7663 | Copy(proto_perl->Inextval, PL_nextval, 5, YYSTYPE); | |
7664 | Copy(proto_perl->Inexttype, PL_nexttype, 5, I32); | |
7665 | PL_nexttoke = proto_perl->Inexttoke; | |
7666 | ||
7667 | PL_linestr = sv_dup_inc(proto_perl->Ilinestr); | |
7668 | i = proto_perl->Ibufptr - SvPVX(proto_perl->Ilinestr); | |
7669 | PL_bufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
7670 | i = proto_perl->Ioldbufptr - SvPVX(proto_perl->Ilinestr); | |
7671 | PL_oldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
7672 | i = proto_perl->Ioldoldbufptr - SvPVX(proto_perl->Ilinestr); | |
7673 | PL_oldoldbufptr = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
7674 | PL_bufend = SvPVX(PL_linestr) + SvCUR(PL_linestr); | |
7675 | i = proto_perl->Ilinestart - SvPVX(proto_perl->Ilinestr); | |
7676 | PL_linestart = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
7677 | PL_pending_ident = proto_perl->Ipending_ident; | |
7678 | PL_sublex_info = proto_perl->Isublex_info; /* XXX not quite right */ | |
7679 | ||
7680 | PL_expect = proto_perl->Iexpect; | |
7681 | ||
7682 | PL_multi_start = proto_perl->Imulti_start; | |
7683 | PL_multi_end = proto_perl->Imulti_end; | |
7684 | PL_multi_open = proto_perl->Imulti_open; | |
7685 | PL_multi_close = proto_perl->Imulti_close; | |
7686 | ||
7687 | PL_error_count = proto_perl->Ierror_count; | |
7688 | PL_subline = proto_perl->Isubline; | |
7689 | PL_subname = sv_dup_inc(proto_perl->Isubname); | |
7690 | ||
7691 | PL_min_intro_pending = proto_perl->Imin_intro_pending; | |
7692 | PL_max_intro_pending = proto_perl->Imax_intro_pending; | |
7693 | PL_padix = proto_perl->Ipadix; | |
7694 | PL_padix_floor = proto_perl->Ipadix_floor; | |
7695 | PL_pad_reset_pending = proto_perl->Ipad_reset_pending; | |
7696 | ||
7697 | i = proto_perl->Ilast_uni - SvPVX(proto_perl->Ilinestr); | |
7698 | PL_last_uni = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
7699 | i = proto_perl->Ilast_lop - SvPVX(proto_perl->Ilinestr); | |
7700 | PL_last_lop = SvPVX(PL_linestr) + (i < 0 ? 0 : i); | |
7701 | PL_last_lop_op = proto_perl->Ilast_lop_op; | |
7702 | PL_in_my = proto_perl->Iin_my; | |
7703 | PL_in_my_stash = hv_dup(proto_perl->Iin_my_stash); | |
7704 | #ifdef FCRYPT | |
7705 | PL_cryptseen = proto_perl->Icryptseen; | |
7706 | #endif | |
7707 | ||
7708 | PL_hints = proto_perl->Ihints; | |
7709 | ||
7710 | PL_amagic_generation = proto_perl->Iamagic_generation; | |
7711 | ||
7712 | #ifdef USE_LOCALE_COLLATE | |
7713 | PL_collation_ix = proto_perl->Icollation_ix; | |
7714 | PL_collation_name = SAVEPV(proto_perl->Icollation_name); | |
7715 | PL_collation_standard = proto_perl->Icollation_standard; | |
7716 | PL_collxfrm_base = proto_perl->Icollxfrm_base; | |
7717 | PL_collxfrm_mult = proto_perl->Icollxfrm_mult; | |
7718 | #endif /* USE_LOCALE_COLLATE */ | |
7719 | ||
7720 | #ifdef USE_LOCALE_NUMERIC | |
7721 | PL_numeric_name = SAVEPV(proto_perl->Inumeric_name); | |
7722 | PL_numeric_standard = proto_perl->Inumeric_standard; | |
7723 | PL_numeric_local = proto_perl->Inumeric_local; | |
7724 | PL_numeric_radix = proto_perl->Inumeric_radix; | |
7725 | #endif /* !USE_LOCALE_NUMERIC */ | |
7726 | ||
7727 | /* utf8 character classes */ | |
7728 | PL_utf8_alnum = sv_dup_inc(proto_perl->Iutf8_alnum); | |
7729 | PL_utf8_alnumc = sv_dup_inc(proto_perl->Iutf8_alnumc); | |
7730 | PL_utf8_ascii = sv_dup_inc(proto_perl->Iutf8_ascii); | |
7731 | PL_utf8_alpha = sv_dup_inc(proto_perl->Iutf8_alpha); | |
7732 | PL_utf8_space = sv_dup_inc(proto_perl->Iutf8_space); | |
7733 | PL_utf8_cntrl = sv_dup_inc(proto_perl->Iutf8_cntrl); | |
7734 | PL_utf8_graph = sv_dup_inc(proto_perl->Iutf8_graph); | |
7735 | PL_utf8_digit = sv_dup_inc(proto_perl->Iutf8_digit); | |
7736 | PL_utf8_upper = sv_dup_inc(proto_perl->Iutf8_upper); | |
7737 | PL_utf8_lower = sv_dup_inc(proto_perl->Iutf8_lower); | |
7738 | PL_utf8_print = sv_dup_inc(proto_perl->Iutf8_print); | |
7739 | PL_utf8_punct = sv_dup_inc(proto_perl->Iutf8_punct); | |
7740 | PL_utf8_xdigit = sv_dup_inc(proto_perl->Iutf8_xdigit); | |
7741 | PL_utf8_mark = sv_dup_inc(proto_perl->Iutf8_mark); | |
7742 | PL_utf8_toupper = sv_dup_inc(proto_perl->Iutf8_toupper); | |
7743 | PL_utf8_totitle = sv_dup_inc(proto_perl->Iutf8_totitle); | |
7744 | PL_utf8_tolower = sv_dup_inc(proto_perl->Iutf8_tolower); | |
7745 | ||
7746 | /* swatch cache */ | |
7747 | PL_last_swash_hv = Nullhv; /* reinits on demand */ | |
7748 | PL_last_swash_klen = 0; | |
7749 | PL_last_swash_key[0]= '\0'; | |
7750 | PL_last_swash_tmps = (U8*)NULL; | |
7751 | PL_last_swash_slen = 0; | |
7752 | ||
7753 | /* perly.c globals */ | |
7754 | PL_yydebug = proto_perl->Iyydebug; | |
7755 | PL_yynerrs = proto_perl->Iyynerrs; | |
7756 | PL_yyerrflag = proto_perl->Iyyerrflag; | |
7757 | PL_yychar = proto_perl->Iyychar; | |
7758 | PL_yyval = proto_perl->Iyyval; | |
7759 | PL_yylval = proto_perl->Iyylval; | |
7760 | ||
7761 | PL_glob_index = proto_perl->Iglob_index; | |
7762 | PL_srand_called = proto_perl->Isrand_called; | |
7763 | PL_uudmap['M'] = 0; /* reinits on demand */ | |
7764 | PL_bitcount = Nullch; /* reinits on demand */ | |
7765 | ||
7766 | if (proto_perl->Ipsig_ptr) { | |
7767 | int sig_num[] = { SIG_NUM }; | |
7768 | Newz(0, PL_psig_ptr, sizeof(sig_num)/sizeof(*sig_num), SV*); | |
7769 | Newz(0, PL_psig_name, sizeof(sig_num)/sizeof(*sig_num), SV*); | |
7770 | for (i = 1; PL_sig_name[i]; i++) { | |
7771 | PL_psig_ptr[i] = sv_dup_inc(proto_perl->Ipsig_ptr[i]); | |
7772 | PL_psig_name[i] = sv_dup_inc(proto_perl->Ipsig_name[i]); | |
7773 | } | |
7774 | } | |
7775 | else { | |
7776 | PL_psig_ptr = (SV**)NULL; | |
7777 | PL_psig_name = (SV**)NULL; | |
7778 | } | |
7779 | ||
7780 | /* thrdvar.h stuff */ | |
7781 | ||
7782 | if (flags & 1) { | |
7783 | /* next allocation will be PL_tmps_stack[PL_tmps_ix+1] */ | |
7784 | PL_tmps_ix = proto_perl->Ttmps_ix; | |
7785 | PL_tmps_max = proto_perl->Ttmps_max; | |
7786 | PL_tmps_floor = proto_perl->Ttmps_floor; | |
7787 | Newz(50, PL_tmps_stack, PL_tmps_max, SV*); | |
7788 | i = 0; | |
7789 | while (i <= PL_tmps_ix) { | |
7790 | PL_tmps_stack[i] = sv_dup_inc(proto_perl->Ttmps_stack[i]); | |
7791 | ++i; | |
7792 | } | |
7793 | ||
7794 | /* next PUSHMARK() sets *(PL_markstack_ptr+1) */ | |
7795 | i = proto_perl->Tmarkstack_max - proto_perl->Tmarkstack; | |
7796 | Newz(54, PL_markstack, i, I32); | |
7797 | PL_markstack_max = PL_markstack + (proto_perl->Tmarkstack_max | |
7798 | - proto_perl->Tmarkstack); | |
7799 | PL_markstack_ptr = PL_markstack + (proto_perl->Tmarkstack_ptr | |
7800 | - proto_perl->Tmarkstack); | |
7801 | Copy(proto_perl->Tmarkstack, PL_markstack, | |
7802 | PL_markstack_ptr - PL_markstack + 1, I32); | |
7803 | ||
7804 | /* next push_scope()/ENTER sets PL_scopestack[PL_scopestack_ix] | |
7805 | * NOTE: unlike the others! */ | |
7806 | PL_scopestack_ix = proto_perl->Tscopestack_ix; | |
7807 | PL_scopestack_max = proto_perl->Tscopestack_max; | |
7808 | Newz(54, PL_scopestack, PL_scopestack_max, I32); | |
7809 | Copy(proto_perl->Tscopestack, PL_scopestack, PL_scopestack_ix, I32); | |
7810 | ||
7811 | /* next push_return() sets PL_retstack[PL_retstack_ix] | |
7812 | * NOTE: unlike the others! */ | |
7813 | PL_retstack_ix = proto_perl->Tretstack_ix; | |
7814 | PL_retstack_max = proto_perl->Tretstack_max; | |
7815 | Newz(54, PL_retstack, PL_retstack_max, OP*); | |
7816 | Copy(proto_perl->Tretstack, PL_retstack, PL_retstack_ix, I32); | |
7817 | ||
7818 | /* NOTE: si_dup() looks at PL_markstack */ | |
7819 | PL_curstackinfo = si_dup(proto_perl->Tcurstackinfo); | |
7820 | ||
7821 | /* PL_curstack = PL_curstackinfo->si_stack; */ | |
7822 | PL_curstack = av_dup(proto_perl->Tcurstack); | |
7823 | PL_mainstack = av_dup(proto_perl->Tmainstack); | |
7824 | ||
7825 | /* next PUSHs() etc. set *(PL_stack_sp+1) */ | |
7826 | PL_stack_base = AvARRAY(PL_curstack); | |
7827 | PL_stack_sp = PL_stack_base + (proto_perl->Tstack_sp | |
7828 | - proto_perl->Tstack_base); | |
7829 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
7830 | ||
7831 | /* next SSPUSHFOO() sets PL_savestack[PL_savestack_ix] | |
7832 | * NOTE: unlike the others! */ | |
7833 | PL_savestack_ix = proto_perl->Tsavestack_ix; | |
7834 | PL_savestack_max = proto_perl->Tsavestack_max; | |
7835 | /*Newz(54, PL_savestack, PL_savestack_max, ANY);*/ | |
7836 | PL_savestack = ss_dup(proto_perl); | |
7837 | } | |
7838 | else { | |
7839 | init_stacks(); | |
7840 | } | |
7841 | ||
7842 | PL_start_env = proto_perl->Tstart_env; /* XXXXXX */ | |
7843 | PL_top_env = &PL_start_env; | |
7844 | ||
7845 | PL_op = proto_perl->Top; | |
7846 | ||
7847 | PL_Sv = Nullsv; | |
7848 | PL_Xpv = (XPV*)NULL; | |
7849 | PL_na = proto_perl->Tna; | |
7850 | ||
7851 | PL_statbuf = proto_perl->Tstatbuf; | |
7852 | PL_statcache = proto_perl->Tstatcache; | |
7853 | PL_statgv = gv_dup(proto_perl->Tstatgv); | |
7854 | PL_statname = sv_dup_inc(proto_perl->Tstatname); | |
7855 | #ifdef HAS_TIMES | |
7856 | PL_timesbuf = proto_perl->Ttimesbuf; | |
7857 | #endif | |
7858 | ||
7859 | PL_tainted = proto_perl->Ttainted; | |
7860 | PL_curpm = proto_perl->Tcurpm; /* XXX No PMOP ref count */ | |
7861 | PL_nrs = sv_dup_inc(proto_perl->Tnrs); | |
7862 | PL_rs = sv_dup_inc(proto_perl->Trs); | |
7863 | PL_last_in_gv = gv_dup(proto_perl->Tlast_in_gv); | |
7864 | PL_ofslen = proto_perl->Tofslen; | |
7865 | PL_ofs = SAVEPVN(proto_perl->Tofs, PL_ofslen); | |
7866 | PL_defoutgv = gv_dup_inc(proto_perl->Tdefoutgv); | |
7867 | PL_chopset = proto_perl->Tchopset; /* XXX never deallocated */ | |
7868 | PL_toptarget = sv_dup_inc(proto_perl->Ttoptarget); | |
7869 | PL_bodytarget = sv_dup_inc(proto_perl->Tbodytarget); | |
7870 | PL_formtarget = sv_dup(proto_perl->Tformtarget); | |
7871 | ||
7872 | PL_restartop = proto_perl->Trestartop; | |
7873 | PL_in_eval = proto_perl->Tin_eval; | |
7874 | PL_delaymagic = proto_perl->Tdelaymagic; | |
7875 | PL_dirty = proto_perl->Tdirty; | |
7876 | PL_localizing = proto_perl->Tlocalizing; | |
7877 | ||
14dd3ad8 | 7878 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1d7c1841 | 7879 | PL_protect = proto_perl->Tprotect; |
14dd3ad8 | 7880 | #endif |
1d7c1841 GS |
7881 | PL_errors = sv_dup_inc(proto_perl->Terrors); |
7882 | PL_av_fetch_sv = Nullsv; | |
7883 | PL_hv_fetch_sv = Nullsv; | |
7884 | Zero(&PL_hv_fetch_ent_mh, 1, HE); /* XXX */ | |
7885 | PL_modcount = proto_perl->Tmodcount; | |
7886 | PL_lastgotoprobe = Nullop; | |
7887 | PL_dumpindent = proto_perl->Tdumpindent; | |
7888 | ||
7889 | PL_sortcop = (OP*)any_dup(proto_perl->Tsortcop, proto_perl); | |
7890 | PL_sortstash = hv_dup(proto_perl->Tsortstash); | |
7891 | PL_firstgv = gv_dup(proto_perl->Tfirstgv); | |
7892 | PL_secondgv = gv_dup(proto_perl->Tsecondgv); | |
7893 | PL_sortcxix = proto_perl->Tsortcxix; | |
7894 | PL_efloatbuf = Nullch; /* reinits on demand */ | |
7895 | PL_efloatsize = 0; /* reinits on demand */ | |
7896 | ||
7897 | /* regex stuff */ | |
7898 | ||
7899 | PL_screamfirst = NULL; | |
7900 | PL_screamnext = NULL; | |
7901 | PL_maxscream = -1; /* reinits on demand */ | |
7902 | PL_lastscream = Nullsv; | |
7903 | ||
7904 | PL_watchaddr = NULL; | |
7905 | PL_watchok = Nullch; | |
7906 | ||
7907 | PL_regdummy = proto_perl->Tregdummy; | |
7908 | PL_regcomp_parse = Nullch; | |
7909 | PL_regxend = Nullch; | |
7910 | PL_regcode = (regnode*)NULL; | |
7911 | PL_regnaughty = 0; | |
7912 | PL_regsawback = 0; | |
7913 | PL_regprecomp = Nullch; | |
7914 | PL_regnpar = 0; | |
7915 | PL_regsize = 0; | |
7916 | PL_regflags = 0; | |
7917 | PL_regseen = 0; | |
7918 | PL_seen_zerolen = 0; | |
7919 | PL_seen_evals = 0; | |
7920 | PL_regcomp_rx = (regexp*)NULL; | |
7921 | PL_extralen = 0; | |
7922 | PL_colorset = 0; /* reinits PL_colors[] */ | |
7923 | /*PL_colors[6] = {0,0,0,0,0,0};*/ | |
7924 | PL_reg_whilem_seen = 0; | |
7925 | PL_reginput = Nullch; | |
7926 | PL_regbol = Nullch; | |
7927 | PL_regeol = Nullch; | |
7928 | PL_regstartp = (I32*)NULL; | |
7929 | PL_regendp = (I32*)NULL; | |
7930 | PL_reglastparen = (U32*)NULL; | |
7931 | PL_regtill = Nullch; | |
7932 | PL_regprev = '\n'; | |
7933 | PL_reg_start_tmp = (char**)NULL; | |
7934 | PL_reg_start_tmpl = 0; | |
7935 | PL_regdata = (struct reg_data*)NULL; | |
7936 | PL_bostr = Nullch; | |
7937 | PL_reg_flags = 0; | |
7938 | PL_reg_eval_set = 0; | |
7939 | PL_regnarrate = 0; | |
7940 | PL_regprogram = (regnode*)NULL; | |
7941 | PL_regindent = 0; | |
7942 | PL_regcc = (CURCUR*)NULL; | |
7943 | PL_reg_call_cc = (struct re_cc_state*)NULL; | |
7944 | PL_reg_re = (regexp*)NULL; | |
7945 | PL_reg_ganch = Nullch; | |
7946 | PL_reg_sv = Nullsv; | |
7947 | PL_reg_magic = (MAGIC*)NULL; | |
7948 | PL_reg_oldpos = 0; | |
7949 | PL_reg_oldcurpm = (PMOP*)NULL; | |
7950 | PL_reg_curpm = (PMOP*)NULL; | |
7951 | PL_reg_oldsaved = Nullch; | |
7952 | PL_reg_oldsavedlen = 0; | |
7953 | PL_reg_maxiter = 0; | |
7954 | PL_reg_leftiter = 0; | |
7955 | PL_reg_poscache = Nullch; | |
7956 | PL_reg_poscache_size= 0; | |
7957 | ||
7958 | /* RE engine - function pointers */ | |
7959 | PL_regcompp = proto_perl->Tregcompp; | |
7960 | PL_regexecp = proto_perl->Tregexecp; | |
7961 | PL_regint_start = proto_perl->Tregint_start; | |
7962 | PL_regint_string = proto_perl->Tregint_string; | |
7963 | PL_regfree = proto_perl->Tregfree; | |
7964 | ||
7965 | PL_reginterp_cnt = 0; | |
7966 | PL_reg_starttry = 0; | |
7967 | ||
7968 | #ifdef PERL_OBJECT | |
7969 | return (PerlInterpreter*)pPerl; | |
7970 | #else | |
7971 | return my_perl; | |
7972 | #endif | |
7973 | } | |
7974 | ||
7975 | #else /* !USE_ITHREADS */ | |
51371543 GS |
7976 | |
7977 | #ifdef PERL_OBJECT | |
51371543 GS |
7978 | #include "XSUB.h" |
7979 | #endif | |
7980 | ||
1d7c1841 GS |
7981 | #endif /* USE_ITHREADS */ |
7982 | ||
51371543 GS |
7983 | static void |
7984 | do_report_used(pTHXo_ SV *sv) | |
7985 | { | |
7986 | if (SvTYPE(sv) != SVTYPEMASK) { | |
bf49b057 | 7987 | PerlIO_printf(Perl_debug_log, "****\n"); |
51371543 GS |
7988 | sv_dump(sv); |
7989 | } | |
7990 | } | |
7991 | ||
7992 | static void | |
7993 | do_clean_objs(pTHXo_ SV *sv) | |
7994 | { | |
7995 | SV* rv; | |
7996 | ||
7997 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { | |
7998 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning object ref:\n "), sv_dump(sv));) | |
7999 | SvROK_off(sv); | |
8000 | SvRV(sv) = 0; | |
8001 | SvREFCNT_dec(rv); | |
8002 | } | |
8003 | ||
8004 | /* XXX Might want to check arrays, etc. */ | |
8005 | } | |
8006 | ||
8007 | #ifndef DISABLE_DESTRUCTOR_KLUDGE | |
8008 | static void | |
8009 | do_clean_named_objs(pTHXo_ SV *sv) | |
8010 | { | |
f472eb5c | 8011 | if (SvTYPE(sv) == SVt_PVGV && GvGP(sv)) { |
51371543 GS |
8012 | if ( SvOBJECT(GvSV(sv)) || |
8013 | GvAV(sv) && SvOBJECT(GvAV(sv)) || | |
8014 | GvHV(sv) && SvOBJECT(GvHV(sv)) || | |
8015 | GvIO(sv) && SvOBJECT(GvIO(sv)) || | |
8016 | GvCV(sv) && SvOBJECT(GvCV(sv)) ) | |
8017 | { | |
8018 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning named glob object:\n "), sv_dump(sv));) | |
8019 | SvREFCNT_dec(sv); | |
8020 | } | |
8021 | } | |
8022 | } | |
8023 | #endif | |
8024 | ||
8025 | static void | |
8026 | do_clean_all(pTHXo_ SV *sv) | |
8027 | { | |
1d7c1841 | 8028 | DEBUG_D((PerlIO_printf(Perl_debug_log, "Cleaning loops: SV at 0x%"UVxf"\n", PTR2UV(sv)) );) |
51371543 GS |
8029 | SvFLAGS(sv) |= SVf_BREAK; |
8030 | SvREFCNT_dec(sv); | |
8031 | } | |
8032 |