Commit | Line | Data |
a0d0e21e |
1 | /* sv.c |
79072805 |
2 | * |
a0d0e21e |
3 | * Copyright (c) 1991-1994, Larry Wall |
79072805 |
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 |
8 | */ |
9 | |
10 | /* |
11 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. |
79072805 |
12 | */ |
13 | |
14 | #include "EXTERN.h" |
15 | #include "perl.h" |
79072805 |
16 | |
c07a80fd |
17 | #ifdef OVR_DBL_DIG |
18 | /* Use an overridden DBL_DIG */ |
19 | # ifdef DBL_DIG |
20 | # undef DBL_DIG |
21 | # endif |
22 | # define DBL_DIG OVR_DBL_DIG |
23 | #else |
a0d0e21e |
24 | /* The following is all to get DBL_DIG, in order to pick a nice |
25 | default value for printing floating point numbers in Gconvert. |
26 | (see config.h) |
27 | */ |
28 | #ifdef I_LIMITS |
29 | #include <limits.h> |
30 | #endif |
31 | #ifdef I_FLOAT |
32 | #include <float.h> |
33 | #endif |
34 | #ifndef HAS_DBL_DIG |
35 | #define DBL_DIG 15 /* A guess that works lots of places */ |
36 | #endif |
c07a80fd |
37 | #endif |
38 | |
39 | #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) |
40 | # define FAST_SV_GETS |
41 | #endif |
a0d0e21e |
42 | |
43 | static SV *more_sv _((void)); |
44 | static XPVIV *more_xiv _((void)); |
45 | static XPVNV *more_xnv _((void)); |
46 | static XPV *more_xpv _((void)); |
47 | static XRV *more_xrv _((void)); |
48 | static SV *new_sv _((void)); |
49 | static XPVIV *new_xiv _((void)); |
50 | static XPVNV *new_xnv _((void)); |
51 | static XPV *new_xpv _((void)); |
52 | static XRV *new_xrv _((void)); |
53 | static void del_xiv _((XPVIV* p)); |
54 | static void del_xnv _((XPVNV* p)); |
55 | static void del_xpv _((XPV* p)); |
56 | static void del_xrv _((XRV* p)); |
57 | static void sv_mortalgrow _((void)); |
58 | |
59 | static void sv_unglob _((SV* sv)); |
60 | |
61 | #ifdef PURIFY |
79072805 |
62 | |
a0d0e21e |
63 | #define new_SV() sv = (SV*)safemalloc(sizeof(SV)) |
64 | #define del_SV(p) free((char*)p) |
65 | |
4633a7c4 |
66 | void |
67 | sv_add_arena(ptr, size, flags) |
68 | char* ptr; |
69 | U32 size; |
70 | U32 flags; |
71 | { |
72 | if (!(flags & SVf_FAKE)) |
73 | free(ptr); |
74 | } |
75 | |
a0d0e21e |
76 | #else |
77 | |
78 | #define new_SV() \ |
79 | if (sv_root) { \ |
80 | sv = sv_root; \ |
81 | sv_root = (SV*)SvANY(sv); \ |
82 | ++sv_count; \ |
83 | } \ |
84 | else \ |
85 | sv = more_sv(); |
463ee0b2 |
86 | |
87 | static SV* |
88 | new_sv() |
89 | { |
90 | SV* sv; |
91 | if (sv_root) { |
92 | sv = sv_root; |
93 | sv_root = (SV*)SvANY(sv); |
8990e307 |
94 | ++sv_count; |
463ee0b2 |
95 | return sv; |
96 | } |
97 | return more_sv(); |
98 | } |
99 | |
a0d0e21e |
100 | #ifdef DEBUGGING |
101 | #define del_SV(p) \ |
102 | if (debug & 32768) \ |
103 | del_sv(p); \ |
104 | else { \ |
105 | SvANY(p) = (void *)sv_root; \ |
106 | sv_root = p; \ |
107 | --sv_count; \ |
108 | } |
109 | |
463ee0b2 |
110 | static void |
111 | del_sv(p) |
112 | SV* p; |
113 | { |
a0d0e21e |
114 | if (debug & 32768) { |
4633a7c4 |
115 | SV* sva; |
a0d0e21e |
116 | SV* sv; |
117 | SV* svend; |
118 | int ok = 0; |
4633a7c4 |
119 | for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
120 | sv = sva + 1; |
121 | svend = &sva[SvREFCNT(sva)]; |
a0d0e21e |
122 | if (p >= sv && p < svend) |
123 | ok = 1; |
124 | } |
125 | if (!ok) { |
126 | warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p); |
127 | return; |
128 | } |
129 | } |
130 | SvANY(p) = (void *) sv_root; |
463ee0b2 |
131 | sv_root = p; |
8990e307 |
132 | --sv_count; |
463ee0b2 |
133 | } |
a0d0e21e |
134 | #else |
135 | #define del_SV(p) \ |
136 | SvANY(p) = (void *)sv_root; \ |
137 | sv_root = p; \ |
138 | --sv_count; |
139 | |
140 | #endif |
463ee0b2 |
141 | |
4633a7c4 |
142 | void |
143 | sv_add_arena(ptr, size, flags) |
144 | char* ptr; |
145 | U32 size; |
146 | U32 flags; |
463ee0b2 |
147 | { |
4633a7c4 |
148 | SV* sva = (SV*)ptr; |
463ee0b2 |
149 | register SV* sv; |
150 | register SV* svend; |
4633a7c4 |
151 | Zero(sva, size, char); |
152 | |
153 | /* The first SV in an arena isn't an SV. */ |
154 | SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */ |
155 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ |
156 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ |
157 | |
158 | sv_arenaroot = sva; |
159 | sv_root = sva + 1; |
160 | |
161 | svend = &sva[SvREFCNT(sva) - 1]; |
162 | sv = sva + 1; |
463ee0b2 |
163 | while (sv < svend) { |
a0d0e21e |
164 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 |
165 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 |
166 | sv++; |
167 | } |
168 | SvANY(sv) = 0; |
4633a7c4 |
169 | SvFLAGS(sv) = SVTYPEMASK; |
170 | } |
171 | |
172 | static SV* |
173 | more_sv() |
174 | { |
c07a80fd |
175 | if (nice_chunk) { |
176 | sv_add_arena(nice_chunk, nice_chunk_size, 0); |
177 | nice_chunk = Nullch; |
178 | } |
179 | else |
180 | sv_add_arena(safemalloc(1008), 1008, 0); |
463ee0b2 |
181 | return new_sv(); |
182 | } |
748a9306 |
183 | #endif |
463ee0b2 |
184 | |
8990e307 |
185 | void |
186 | sv_report_used() |
187 | { |
4633a7c4 |
188 | SV* sva; |
8990e307 |
189 | SV* sv; |
190 | register SV* svend; |
191 | |
4633a7c4 |
192 | for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
193 | sv = sva + 1; |
194 | svend = &sva[SvREFCNT(sva)]; |
8990e307 |
195 | while (sv < svend) { |
196 | if (SvTYPE(sv) != SVTYPEMASK) { |
197 | fprintf(stderr, "****\n"); |
198 | sv_dump(sv); |
199 | } |
200 | ++sv; |
201 | } |
202 | } |
203 | } |
204 | |
205 | void |
a0d0e21e |
206 | sv_clean_objs() |
8990e307 |
207 | { |
4633a7c4 |
208 | SV* sva; |
8990e307 |
209 | register SV* sv; |
210 | register SV* svend; |
a0d0e21e |
211 | SV* rv; |
8990e307 |
212 | |
a5f75d66 |
213 | #ifndef DISABLE_DESTRUCTOR_KLUDGE |
214 | register GV* gv; |
215 | for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
216 | gv = sva + 1; |
217 | svend = &sva[SvREFCNT(sva)]; |
218 | while (gv < svend) { |
219 | if (SvTYPE(gv) == SVt_PVGV && (sv = GvSV(gv)) && |
220 | SvROK(sv) && SvOBJECT(rv = SvRV(sv))) |
221 | { |
222 | DEBUG_D((fprintf(stderr, "Cleaning object ref:\n "), |
223 | sv_dump(sv));) |
224 | SvROK_off(sv); |
225 | SvRV(sv) = 0; |
226 | SvREFCNT_dec(rv); |
227 | } |
228 | ++gv; |
229 | } |
230 | } |
231 | if (!sv_objcount) |
232 | return; |
233 | #endif |
4633a7c4 |
234 | for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
235 | sv = sva + 1; |
236 | svend = &sva[SvREFCNT(sva)]; |
8990e307 |
237 | while (sv < svend) { |
a0d0e21e |
238 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { |
239 | DEBUG_D((fprintf(stderr, "Cleaning object ref:\n "), |
240 | sv_dump(sv));) |
241 | SvROK_off(sv); |
242 | SvRV(sv) = 0; |
243 | SvREFCNT_dec(rv); |
8990e307 |
244 | } |
a0d0e21e |
245 | /* XXX Might want to check arrays, etc. */ |
8990e307 |
246 | ++sv; |
247 | } |
248 | } |
249 | } |
250 | |
251 | void |
8990e307 |
252 | sv_clean_all() |
253 | { |
4633a7c4 |
254 | SV* sva; |
8990e307 |
255 | register SV* sv; |
256 | register SV* svend; |
257 | |
4633a7c4 |
258 | for (sva = sv_arenaroot; sva; sva = (SV*) SvANY(sva)) { |
259 | sv = sva + 1; |
260 | svend = &sva[SvREFCNT(sva)]; |
8990e307 |
261 | while (sv < svend) { |
262 | if (SvTYPE(sv) != SVTYPEMASK) { |
263 | DEBUG_D((fprintf(stderr, "Cleaning loops:\n "), sv_dump(sv));) |
264 | SvFLAGS(sv) |= SVf_BREAK; |
265 | SvREFCNT_dec(sv); |
266 | } |
267 | ++sv; |
268 | } |
269 | } |
270 | } |
463ee0b2 |
271 | |
4633a7c4 |
272 | void |
273 | sv_free_arenas() |
274 | { |
275 | SV* sva; |
276 | SV* svanext; |
277 | |
278 | /* Free arenas here, but be careful about fake ones. (We assume |
279 | contiguity of the fake ones with the corresponding real ones.) */ |
280 | |
281 | for (sva = sv_arenaroot; sva; sva = svanext) { |
282 | svanext = (SV*) SvANY(sva); |
283 | while (svanext && SvFAKE(svanext)) |
284 | svanext = (SV*) SvANY(svanext); |
285 | |
286 | if (!SvFAKE(sva)) |
287 | Safefree(sva); |
288 | } |
289 | } |
290 | |
463ee0b2 |
291 | static XPVIV* |
292 | new_xiv() |
293 | { |
a0d0e21e |
294 | IV** xiv; |
463ee0b2 |
295 | if (xiv_root) { |
296 | xiv = xiv_root; |
85e6fe83 |
297 | /* |
298 | * See comment in more_xiv() -- RAM. |
299 | */ |
a0d0e21e |
300 | xiv_root = (IV**)*xiv; |
463ee0b2 |
301 | return (XPVIV*)((char*)xiv - sizeof(XPV)); |
302 | } |
303 | return more_xiv(); |
304 | } |
305 | |
306 | static void |
307 | del_xiv(p) |
308 | XPVIV* p; |
309 | { |
a0d0e21e |
310 | IV** xiv = (IV**)((char*)(p) + sizeof(XPV)); |
311 | *xiv = (IV *)xiv_root; |
463ee0b2 |
312 | xiv_root = xiv; |
313 | } |
314 | |
315 | static XPVIV* |
316 | more_xiv() |
317 | { |
a0d0e21e |
318 | register IV** xiv; |
319 | register IV** xivend; |
320 | XPV* ptr = (XPV*)safemalloc(1008); |
321 | ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */ |
322 | xiv_arenaroot = ptr; /* to keep Purify happy */ |
323 | |
324 | xiv = (IV**) ptr; |
325 | xivend = &xiv[1008 / sizeof(IV *) - 1]; |
326 | xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */ |
463ee0b2 |
327 | xiv_root = xiv; |
328 | while (xiv < xivend) { |
a0d0e21e |
329 | *xiv = (IV *)(xiv + 1); |
463ee0b2 |
330 | xiv++; |
331 | } |
85e6fe83 |
332 | *xiv = 0; |
463ee0b2 |
333 | return new_xiv(); |
334 | } |
335 | |
463ee0b2 |
336 | static XPVNV* |
337 | new_xnv() |
338 | { |
339 | double* xnv; |
340 | if (xnv_root) { |
341 | xnv = xnv_root; |
342 | xnv_root = *(double**)xnv; |
343 | return (XPVNV*)((char*)xnv - sizeof(XPVIV)); |
344 | } |
345 | return more_xnv(); |
346 | } |
347 | |
348 | static void |
349 | del_xnv(p) |
350 | XPVNV* p; |
351 | { |
352 | double* xnv = (double*)((char*)(p) + sizeof(XPVIV)); |
353 | *(double**)xnv = xnv_root; |
354 | xnv_root = xnv; |
355 | } |
356 | |
357 | static XPVNV* |
358 | more_xnv() |
359 | { |
463ee0b2 |
360 | register double* xnv; |
361 | register double* xnvend; |
8990e307 |
362 | xnv = (double*)safemalloc(1008); |
463ee0b2 |
363 | xnvend = &xnv[1008 / sizeof(double) - 1]; |
364 | xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */ |
365 | xnv_root = xnv; |
366 | while (xnv < xnvend) { |
367 | *(double**)xnv = (double*)(xnv + 1); |
368 | xnv++; |
369 | } |
370 | *(double**)xnv = 0; |
371 | return new_xnv(); |
372 | } |
373 | |
ed6116ce |
374 | static XRV* |
375 | new_xrv() |
376 | { |
377 | XRV* xrv; |
378 | if (xrv_root) { |
379 | xrv = xrv_root; |
380 | xrv_root = (XRV*)xrv->xrv_rv; |
381 | return xrv; |
382 | } |
383 | return more_xrv(); |
384 | } |
385 | |
386 | static void |
387 | del_xrv(p) |
388 | XRV* p; |
389 | { |
390 | p->xrv_rv = (SV*)xrv_root; |
391 | xrv_root = p; |
392 | } |
393 | |
394 | static XRV* |
395 | more_xrv() |
396 | { |
ed6116ce |
397 | register XRV* xrv; |
398 | register XRV* xrvend; |
8990e307 |
399 | xrv_root = (XRV*)safemalloc(1008); |
ed6116ce |
400 | xrv = xrv_root; |
401 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; |
402 | while (xrv < xrvend) { |
403 | xrv->xrv_rv = (SV*)(xrv + 1); |
404 | xrv++; |
405 | } |
406 | xrv->xrv_rv = 0; |
407 | return new_xrv(); |
408 | } |
409 | |
463ee0b2 |
410 | static XPV* |
411 | new_xpv() |
412 | { |
413 | XPV* xpv; |
414 | if (xpv_root) { |
415 | xpv = xpv_root; |
416 | xpv_root = (XPV*)xpv->xpv_pv; |
417 | return xpv; |
418 | } |
419 | return more_xpv(); |
420 | } |
421 | |
422 | static void |
423 | del_xpv(p) |
424 | XPV* p; |
425 | { |
426 | p->xpv_pv = (char*)xpv_root; |
427 | xpv_root = p; |
428 | } |
429 | |
430 | static XPV* |
431 | more_xpv() |
432 | { |
463ee0b2 |
433 | register XPV* xpv; |
434 | register XPV* xpvend; |
8990e307 |
435 | xpv_root = (XPV*)safemalloc(1008); |
463ee0b2 |
436 | xpv = xpv_root; |
437 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; |
438 | while (xpv < xpvend) { |
439 | xpv->xpv_pv = (char*)(xpv + 1); |
440 | xpv++; |
441 | } |
442 | xpv->xpv_pv = 0; |
443 | return new_xpv(); |
444 | } |
445 | |
446 | #ifdef PURIFY |
8990e307 |
447 | #define new_XIV() (void*)safemalloc(sizeof(XPVIV)) |
463ee0b2 |
448 | #define del_XIV(p) free((char*)p) |
449 | #else |
85e6fe83 |
450 | #define new_XIV() (void*)new_xiv() |
463ee0b2 |
451 | #define del_XIV(p) del_xiv(p) |
452 | #endif |
453 | |
454 | #ifdef PURIFY |
8990e307 |
455 | #define new_XNV() (void*)safemalloc(sizeof(XPVNV)) |
463ee0b2 |
456 | #define del_XNV(p) free((char*)p) |
457 | #else |
85e6fe83 |
458 | #define new_XNV() (void*)new_xnv() |
463ee0b2 |
459 | #define del_XNV(p) del_xnv(p) |
460 | #endif |
461 | |
462 | #ifdef PURIFY |
8990e307 |
463 | #define new_XRV() (void*)safemalloc(sizeof(XRV)) |
ed6116ce |
464 | #define del_XRV(p) free((char*)p) |
465 | #else |
85e6fe83 |
466 | #define new_XRV() (void*)new_xrv() |
ed6116ce |
467 | #define del_XRV(p) del_xrv(p) |
468 | #endif |
469 | |
470 | #ifdef PURIFY |
8990e307 |
471 | #define new_XPV() (void*)safemalloc(sizeof(XPV)) |
463ee0b2 |
472 | #define del_XPV(p) free((char*)p) |
473 | #else |
85e6fe83 |
474 | #define new_XPV() (void*)new_xpv() |
463ee0b2 |
475 | #define del_XPV(p) del_xpv(p) |
476 | #endif |
477 | |
8990e307 |
478 | #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV)) |
463ee0b2 |
479 | #define del_XPVIV(p) free((char*)p) |
480 | |
8990e307 |
481 | #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV)) |
463ee0b2 |
482 | #define del_XPVNV(p) free((char*)p) |
483 | |
8990e307 |
484 | #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG)) |
463ee0b2 |
485 | #define del_XPVMG(p) free((char*)p) |
486 | |
8990e307 |
487 | #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV)) |
463ee0b2 |
488 | #define del_XPVLV(p) free((char*)p) |
489 | |
8990e307 |
490 | #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV)) |
463ee0b2 |
491 | #define del_XPVAV(p) free((char*)p) |
492 | |
8990e307 |
493 | #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV)) |
463ee0b2 |
494 | #define del_XPVHV(p) free((char*)p) |
495 | |
8990e307 |
496 | #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV)) |
463ee0b2 |
497 | #define del_XPVCV(p) free((char*)p) |
498 | |
8990e307 |
499 | #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV)) |
463ee0b2 |
500 | #define del_XPVGV(p) free((char*)p) |
501 | |
8990e307 |
502 | #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM)) |
463ee0b2 |
503 | #define del_XPVBM(p) free((char*)p) |
504 | |
8990e307 |
505 | #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM)) |
463ee0b2 |
506 | #define del_XPVFM(p) free((char*)p) |
507 | |
8990e307 |
508 | #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO)) |
509 | #define del_XPVIO(p) free((char*)p) |
510 | |
79072805 |
511 | bool |
512 | sv_upgrade(sv, mt) |
513 | register SV* sv; |
514 | U32 mt; |
515 | { |
516 | char* pv; |
517 | U32 cur; |
518 | U32 len; |
a0d0e21e |
519 | IV iv; |
79072805 |
520 | double nv; |
521 | MAGIC* magic; |
522 | HV* stash; |
523 | |
524 | if (SvTYPE(sv) == mt) |
525 | return TRUE; |
526 | |
a5f75d66 |
527 | if (mt < SVt_PVIV) |
528 | (void)SvOOK_off(sv); |
529 | |
79072805 |
530 | switch (SvTYPE(sv)) { |
531 | case SVt_NULL: |
532 | pv = 0; |
533 | cur = 0; |
534 | len = 0; |
535 | iv = 0; |
536 | nv = 0.0; |
537 | magic = 0; |
538 | stash = 0; |
539 | break; |
79072805 |
540 | case SVt_IV: |
541 | pv = 0; |
542 | cur = 0; |
543 | len = 0; |
463ee0b2 |
544 | iv = SvIVX(sv); |
545 | nv = (double)SvIVX(sv); |
79072805 |
546 | del_XIV(SvANY(sv)); |
547 | magic = 0; |
548 | stash = 0; |
ed6116ce |
549 | if (mt == SVt_NV) |
463ee0b2 |
550 | mt = SVt_PVNV; |
ed6116ce |
551 | else if (mt < SVt_PVIV) |
552 | mt = SVt_PVIV; |
79072805 |
553 | break; |
554 | case SVt_NV: |
555 | pv = 0; |
556 | cur = 0; |
557 | len = 0; |
463ee0b2 |
558 | nv = SvNVX(sv); |
ed6116ce |
559 | iv = I_32(nv); |
79072805 |
560 | magic = 0; |
561 | stash = 0; |
562 | del_XNV(SvANY(sv)); |
563 | SvANY(sv) = 0; |
ed6116ce |
564 | if (mt < SVt_PVNV) |
79072805 |
565 | mt = SVt_PVNV; |
566 | break; |
ed6116ce |
567 | case SVt_RV: |
568 | pv = (char*)SvRV(sv); |
569 | cur = 0; |
570 | len = 0; |
a0d0e21e |
571 | iv = (IV)pv; |
ed6116ce |
572 | nv = (double)(unsigned long)pv; |
573 | del_XRV(SvANY(sv)); |
574 | magic = 0; |
575 | stash = 0; |
576 | break; |
79072805 |
577 | case SVt_PV: |
578 | nv = 0.0; |
463ee0b2 |
579 | pv = SvPVX(sv); |
79072805 |
580 | cur = SvCUR(sv); |
581 | len = SvLEN(sv); |
582 | iv = 0; |
583 | nv = 0.0; |
584 | magic = 0; |
585 | stash = 0; |
586 | del_XPV(SvANY(sv)); |
748a9306 |
587 | if (mt <= SVt_IV) |
588 | mt = SVt_PVIV; |
589 | else if (mt == SVt_NV) |
590 | mt = SVt_PVNV; |
79072805 |
591 | break; |
592 | case SVt_PVIV: |
593 | nv = 0.0; |
463ee0b2 |
594 | pv = SvPVX(sv); |
79072805 |
595 | cur = SvCUR(sv); |
596 | len = SvLEN(sv); |
463ee0b2 |
597 | iv = SvIVX(sv); |
79072805 |
598 | nv = 0.0; |
599 | magic = 0; |
600 | stash = 0; |
601 | del_XPVIV(SvANY(sv)); |
602 | break; |
603 | case SVt_PVNV: |
463ee0b2 |
604 | nv = SvNVX(sv); |
605 | pv = SvPVX(sv); |
79072805 |
606 | cur = SvCUR(sv); |
607 | len = SvLEN(sv); |
463ee0b2 |
608 | iv = SvIVX(sv); |
609 | nv = SvNVX(sv); |
79072805 |
610 | magic = 0; |
611 | stash = 0; |
612 | del_XPVNV(SvANY(sv)); |
613 | break; |
614 | case SVt_PVMG: |
463ee0b2 |
615 | pv = SvPVX(sv); |
79072805 |
616 | cur = SvCUR(sv); |
617 | len = SvLEN(sv); |
463ee0b2 |
618 | iv = SvIVX(sv); |
619 | nv = SvNVX(sv); |
79072805 |
620 | magic = SvMAGIC(sv); |
621 | stash = SvSTASH(sv); |
622 | del_XPVMG(SvANY(sv)); |
623 | break; |
624 | default: |
463ee0b2 |
625 | croak("Can't upgrade that kind of scalar"); |
79072805 |
626 | } |
627 | |
628 | switch (mt) { |
629 | case SVt_NULL: |
463ee0b2 |
630 | croak("Can't upgrade to undef"); |
79072805 |
631 | case SVt_IV: |
632 | SvANY(sv) = new_XIV(); |
463ee0b2 |
633 | SvIVX(sv) = iv; |
79072805 |
634 | break; |
635 | case SVt_NV: |
636 | SvANY(sv) = new_XNV(); |
463ee0b2 |
637 | SvNVX(sv) = nv; |
79072805 |
638 | break; |
ed6116ce |
639 | case SVt_RV: |
640 | SvANY(sv) = new_XRV(); |
641 | SvRV(sv) = (SV*)pv; |
ed6116ce |
642 | break; |
79072805 |
643 | case SVt_PV: |
644 | SvANY(sv) = new_XPV(); |
463ee0b2 |
645 | SvPVX(sv) = pv; |
79072805 |
646 | SvCUR(sv) = cur; |
647 | SvLEN(sv) = len; |
648 | break; |
649 | case SVt_PVIV: |
650 | SvANY(sv) = new_XPVIV(); |
463ee0b2 |
651 | SvPVX(sv) = pv; |
79072805 |
652 | SvCUR(sv) = cur; |
653 | SvLEN(sv) = len; |
463ee0b2 |
654 | SvIVX(sv) = iv; |
79072805 |
655 | if (SvNIOK(sv)) |
a0d0e21e |
656 | (void)SvIOK_on(sv); |
79072805 |
657 | SvNOK_off(sv); |
658 | break; |
659 | case SVt_PVNV: |
660 | SvANY(sv) = new_XPVNV(); |
463ee0b2 |
661 | SvPVX(sv) = pv; |
79072805 |
662 | SvCUR(sv) = cur; |
663 | SvLEN(sv) = len; |
463ee0b2 |
664 | SvIVX(sv) = iv; |
665 | SvNVX(sv) = nv; |
79072805 |
666 | break; |
667 | case SVt_PVMG: |
668 | SvANY(sv) = new_XPVMG(); |
463ee0b2 |
669 | SvPVX(sv) = pv; |
79072805 |
670 | SvCUR(sv) = cur; |
671 | SvLEN(sv) = len; |
463ee0b2 |
672 | SvIVX(sv) = iv; |
673 | SvNVX(sv) = nv; |
79072805 |
674 | SvMAGIC(sv) = magic; |
675 | SvSTASH(sv) = stash; |
676 | break; |
677 | case SVt_PVLV: |
678 | SvANY(sv) = new_XPVLV(); |
463ee0b2 |
679 | SvPVX(sv) = pv; |
79072805 |
680 | SvCUR(sv) = cur; |
681 | SvLEN(sv) = len; |
463ee0b2 |
682 | SvIVX(sv) = iv; |
683 | SvNVX(sv) = nv; |
79072805 |
684 | SvMAGIC(sv) = magic; |
685 | SvSTASH(sv) = stash; |
686 | LvTARGOFF(sv) = 0; |
687 | LvTARGLEN(sv) = 0; |
688 | LvTARG(sv) = 0; |
689 | LvTYPE(sv) = 0; |
690 | break; |
691 | case SVt_PVAV: |
692 | SvANY(sv) = new_XPVAV(); |
463ee0b2 |
693 | if (pv) |
694 | Safefree(pv); |
2304df62 |
695 | SvPVX(sv) = 0; |
79072805 |
696 | AvMAX(sv) = 0; |
697 | AvFILL(sv) = 0; |
463ee0b2 |
698 | SvIVX(sv) = 0; |
699 | SvNVX(sv) = 0.0; |
700 | SvMAGIC(sv) = magic; |
701 | SvSTASH(sv) = stash; |
702 | AvALLOC(sv) = 0; |
79072805 |
703 | AvARYLEN(sv) = 0; |
704 | AvFLAGS(sv) = 0; |
705 | break; |
706 | case SVt_PVHV: |
707 | SvANY(sv) = new_XPVHV(); |
463ee0b2 |
708 | if (pv) |
709 | Safefree(pv); |
710 | SvPVX(sv) = 0; |
711 | HvFILL(sv) = 0; |
712 | HvMAX(sv) = 0; |
713 | HvKEYS(sv) = 0; |
714 | SvNVX(sv) = 0.0; |
79072805 |
715 | SvMAGIC(sv) = magic; |
716 | SvSTASH(sv) = stash; |
79072805 |
717 | HvRITER(sv) = 0; |
718 | HvEITER(sv) = 0; |
719 | HvPMROOT(sv) = 0; |
720 | HvNAME(sv) = 0; |
79072805 |
721 | break; |
722 | case SVt_PVCV: |
723 | SvANY(sv) = new_XPVCV(); |
748a9306 |
724 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 |
725 | SvPVX(sv) = pv; |
79072805 |
726 | SvCUR(sv) = cur; |
727 | SvLEN(sv) = len; |
463ee0b2 |
728 | SvIVX(sv) = iv; |
729 | SvNVX(sv) = nv; |
79072805 |
730 | SvMAGIC(sv) = magic; |
731 | SvSTASH(sv) = stash; |
79072805 |
732 | break; |
733 | case SVt_PVGV: |
734 | SvANY(sv) = new_XPVGV(); |
463ee0b2 |
735 | SvPVX(sv) = pv; |
79072805 |
736 | SvCUR(sv) = cur; |
737 | SvLEN(sv) = len; |
463ee0b2 |
738 | SvIVX(sv) = iv; |
739 | SvNVX(sv) = nv; |
79072805 |
740 | SvMAGIC(sv) = magic; |
741 | SvSTASH(sv) = stash; |
93a17b20 |
742 | GvGP(sv) = 0; |
79072805 |
743 | GvNAME(sv) = 0; |
744 | GvNAMELEN(sv) = 0; |
745 | GvSTASH(sv) = 0; |
a5f75d66 |
746 | GvFLAGS(sv) = 0; |
79072805 |
747 | break; |
748 | case SVt_PVBM: |
749 | SvANY(sv) = new_XPVBM(); |
463ee0b2 |
750 | SvPVX(sv) = pv; |
79072805 |
751 | SvCUR(sv) = cur; |
752 | SvLEN(sv) = len; |
463ee0b2 |
753 | SvIVX(sv) = iv; |
754 | SvNVX(sv) = nv; |
79072805 |
755 | SvMAGIC(sv) = magic; |
756 | SvSTASH(sv) = stash; |
757 | BmRARE(sv) = 0; |
758 | BmUSEFUL(sv) = 0; |
759 | BmPREVIOUS(sv) = 0; |
760 | break; |
761 | case SVt_PVFM: |
762 | SvANY(sv) = new_XPVFM(); |
748a9306 |
763 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 |
764 | SvPVX(sv) = pv; |
79072805 |
765 | SvCUR(sv) = cur; |
766 | SvLEN(sv) = len; |
463ee0b2 |
767 | SvIVX(sv) = iv; |
768 | SvNVX(sv) = nv; |
79072805 |
769 | SvMAGIC(sv) = magic; |
770 | SvSTASH(sv) = stash; |
79072805 |
771 | break; |
8990e307 |
772 | case SVt_PVIO: |
773 | SvANY(sv) = new_XPVIO(); |
748a9306 |
774 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 |
775 | SvPVX(sv) = pv; |
776 | SvCUR(sv) = cur; |
777 | SvLEN(sv) = len; |
778 | SvIVX(sv) = iv; |
779 | SvNVX(sv) = nv; |
780 | SvMAGIC(sv) = magic; |
781 | SvSTASH(sv) = stash; |
85e6fe83 |
782 | IoPAGE_LEN(sv) = 60; |
8990e307 |
783 | break; |
784 | } |
785 | SvFLAGS(sv) &= ~SVTYPEMASK; |
786 | SvFLAGS(sv) |= mt; |
79072805 |
787 | return TRUE; |
788 | } |
789 | |
a0d0e21e |
790 | #ifdef DEBUGGING |
79072805 |
791 | char * |
792 | sv_peek(sv) |
793 | register SV *sv; |
794 | { |
795 | char *t = tokenbuf; |
a0d0e21e |
796 | int unref = 0; |
79072805 |
797 | |
798 | retry: |
799 | if (!sv) { |
800 | strcpy(t, "VOID"); |
a0d0e21e |
801 | goto finish; |
79072805 |
802 | } |
803 | else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') { |
804 | strcpy(t, "WILD"); |
a0d0e21e |
805 | goto finish; |
806 | } |
807 | else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) { |
808 | if (sv == &sv_undef) { |
809 | strcpy(t, "SV_UNDEF"); |
810 | if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT| |
811 | SVs_GMG|SVs_SMG|SVs_RMG)) && |
812 | SvREADONLY(sv)) |
813 | goto finish; |
814 | } |
815 | else if (sv == &sv_no) { |
816 | strcpy(t, "SV_NO"); |
817 | if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| |
818 | SVs_GMG|SVs_SMG|SVs_RMG)) && |
819 | !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| |
820 | SVp_POK|SVp_NOK)) && |
821 | SvCUR(sv) == 0 && |
822 | SvNVX(sv) == 0.0) |
823 | goto finish; |
824 | } |
825 | else { |
826 | strcpy(t, "SV_YES"); |
827 | if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| |
828 | SVs_GMG|SVs_SMG|SVs_RMG)) && |
829 | !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| |
830 | SVp_POK|SVp_NOK)) && |
831 | SvCUR(sv) == 1 && |
832 | SvPVX(sv) && *SvPVX(sv) == '1' && |
833 | SvNVX(sv) == 1.0) |
834 | goto finish; |
835 | } |
836 | t += strlen(t); |
837 | *t++ = ':'; |
79072805 |
838 | } |
a0d0e21e |
839 | else if (SvREFCNT(sv) == 0) { |
840 | *t++ = '('; |
841 | unref++; |
79072805 |
842 | } |
a0d0e21e |
843 | if (SvROK(sv)) { |
844 | *t++ = '\\'; |
845 | if (t - tokenbuf + unref > 10) { |
846 | strcpy(tokenbuf + unref + 3,"..."); |
847 | goto finish; |
79072805 |
848 | } |
a0d0e21e |
849 | sv = (SV*)SvRV(sv); |
850 | goto retry; |
851 | } |
852 | switch (SvTYPE(sv)) { |
853 | default: |
854 | strcpy(t,"FREED"); |
855 | goto finish; |
856 | |
857 | case SVt_NULL: |
858 | strcpy(t,"UNDEF"); |
859 | return tokenbuf; |
860 | case SVt_IV: |
861 | strcpy(t,"IV"); |
862 | break; |
863 | case SVt_NV: |
864 | strcpy(t,"NV"); |
865 | break; |
866 | case SVt_RV: |
867 | strcpy(t,"RV"); |
868 | break; |
869 | case SVt_PV: |
870 | strcpy(t,"PV"); |
871 | break; |
872 | case SVt_PVIV: |
873 | strcpy(t,"PVIV"); |
874 | break; |
875 | case SVt_PVNV: |
876 | strcpy(t,"PVNV"); |
877 | break; |
878 | case SVt_PVMG: |
879 | strcpy(t,"PVMG"); |
880 | break; |
881 | case SVt_PVLV: |
882 | strcpy(t,"PVLV"); |
883 | break; |
884 | case SVt_PVAV: |
885 | strcpy(t,"AV"); |
886 | break; |
887 | case SVt_PVHV: |
888 | strcpy(t,"HV"); |
889 | break; |
890 | case SVt_PVCV: |
891 | if (CvGV(sv)) |
892 | sprintf(t, "CV(%s)", GvNAME(CvGV(sv))); |
893 | else |
894 | strcpy(t, "CV()"); |
895 | goto finish; |
896 | case SVt_PVGV: |
897 | strcpy(t,"GV"); |
898 | break; |
899 | case SVt_PVBM: |
900 | strcpy(t,"BM"); |
901 | break; |
902 | case SVt_PVFM: |
903 | strcpy(t,"FM"); |
904 | break; |
905 | case SVt_PVIO: |
906 | strcpy(t,"IO"); |
907 | break; |
79072805 |
908 | } |
909 | t += strlen(t); |
910 | |
a0d0e21e |
911 | if (SvPOKp(sv)) { |
463ee0b2 |
912 | if (!SvPVX(sv)) |
a0d0e21e |
913 | strcpy(t, "(null)"); |
79072805 |
914 | if (SvOOK(sv)) |
2304df62 |
915 | sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv)); |
79072805 |
916 | else |
2304df62 |
917 | sprintf(t,"(\"%.127s\")",SvPVX(sv)); |
79072805 |
918 | } |
a0d0e21e |
919 | else if (SvNOKp(sv)) |
463ee0b2 |
920 | sprintf(t,"(%g)",SvNVX(sv)); |
a0d0e21e |
921 | else if (SvIOKp(sv)) |
463ee0b2 |
922 | sprintf(t,"(%ld)",(long)SvIVX(sv)); |
79072805 |
923 | else |
924 | strcpy(t,"()"); |
a0d0e21e |
925 | |
926 | finish: |
927 | if (unref) { |
928 | t += strlen(t); |
929 | while (unref--) |
930 | *t++ = ')'; |
931 | *t = '\0'; |
932 | } |
79072805 |
933 | return tokenbuf; |
934 | } |
a0d0e21e |
935 | #endif |
79072805 |
936 | |
937 | int |
938 | sv_backoff(sv) |
939 | register SV *sv; |
940 | { |
941 | assert(SvOOK(sv)); |
463ee0b2 |
942 | if (SvIVX(sv)) { |
943 | char *s = SvPVX(sv); |
944 | SvLEN(sv) += SvIVX(sv); |
945 | SvPVX(sv) -= SvIVX(sv); |
79072805 |
946 | SvIV_set(sv, 0); |
463ee0b2 |
947 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 |
948 | } |
949 | SvFLAGS(sv) &= ~SVf_OOK; |
a0d0e21e |
950 | return 0; |
79072805 |
951 | } |
952 | |
953 | char * |
954 | sv_grow(sv,newlen) |
955 | register SV *sv; |
956 | #ifndef DOSISH |
957 | register I32 newlen; |
958 | #else |
959 | unsigned long newlen; |
960 | #endif |
961 | { |
962 | register char *s; |
963 | |
964 | #ifdef MSDOS |
965 | if (newlen >= 0x10000) { |
966 | fprintf(stderr, "Allocation too large: %lx\n", newlen); |
967 | my_exit(1); |
968 | } |
969 | #endif /* MSDOS */ |
a0d0e21e |
970 | if (SvROK(sv)) |
971 | sv_unref(sv); |
79072805 |
972 | if (SvTYPE(sv) < SVt_PV) { |
973 | sv_upgrade(sv, SVt_PV); |
463ee0b2 |
974 | s = SvPVX(sv); |
79072805 |
975 | } |
976 | else if (SvOOK(sv)) { /* pv is offset? */ |
977 | sv_backoff(sv); |
463ee0b2 |
978 | s = SvPVX(sv); |
79072805 |
979 | if (newlen > SvLEN(sv)) |
980 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ |
981 | } |
982 | else |
463ee0b2 |
983 | s = SvPVX(sv); |
79072805 |
984 | if (newlen > SvLEN(sv)) { /* need more room? */ |
85e6fe83 |
985 | if (SvLEN(sv) && s) |
79072805 |
986 | Renew(s,newlen,char); |
987 | else |
988 | New(703,s,newlen,char); |
989 | SvPV_set(sv, s); |
990 | SvLEN_set(sv, newlen); |
991 | } |
992 | return s; |
993 | } |
994 | |
995 | void |
996 | sv_setiv(sv,i) |
997 | register SV *sv; |
a0d0e21e |
998 | IV i; |
79072805 |
999 | { |
ed6116ce |
1000 | if (SvTHINKFIRST(sv)) { |
8990e307 |
1001 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
1002 | croak(no_modify); |
1003 | if (SvROK(sv)) |
1004 | sv_unref(sv); |
1005 | } |
463ee0b2 |
1006 | switch (SvTYPE(sv)) { |
1007 | case SVt_NULL: |
79072805 |
1008 | sv_upgrade(sv, SVt_IV); |
463ee0b2 |
1009 | break; |
1010 | case SVt_NV: |
1011 | sv_upgrade(sv, SVt_PVNV); |
1012 | break; |
ed6116ce |
1013 | case SVt_RV: |
463ee0b2 |
1014 | case SVt_PV: |
79072805 |
1015 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 |
1016 | break; |
a0d0e21e |
1017 | |
1018 | case SVt_PVGV: |
1019 | if (SvFAKE(sv)) { |
1020 | sv_unglob(sv); |
1021 | break; |
1022 | } |
1023 | /* FALL THROUGH */ |
1024 | case SVt_PVAV: |
1025 | case SVt_PVHV: |
1026 | case SVt_PVCV: |
1027 | case SVt_PVFM: |
1028 | case SVt_PVIO: |
1029 | croak("Can't coerce %s to integer in %s", sv_reftype(sv,0), |
1030 | op_name[op->op_type]); |
463ee0b2 |
1031 | } |
a0d0e21e |
1032 | (void)SvIOK_only(sv); /* validate number */ |
a5f75d66 |
1033 | SvIVX(sv) = i; |
463ee0b2 |
1034 | SvTAINT(sv); |
79072805 |
1035 | } |
1036 | |
1037 | void |
1038 | sv_setnv(sv,num) |
1039 | register SV *sv; |
1040 | double num; |
1041 | { |
ed6116ce |
1042 | if (SvTHINKFIRST(sv)) { |
8990e307 |
1043 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
1044 | croak(no_modify); |
1045 | if (SvROK(sv)) |
1046 | sv_unref(sv); |
1047 | } |
a0d0e21e |
1048 | switch (SvTYPE(sv)) { |
1049 | case SVt_NULL: |
1050 | case SVt_IV: |
79072805 |
1051 | sv_upgrade(sv, SVt_NV); |
a0d0e21e |
1052 | break; |
1053 | case SVt_NV: |
1054 | case SVt_RV: |
1055 | case SVt_PV: |
1056 | case SVt_PVIV: |
79072805 |
1057 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e |
1058 | /* FALL THROUGH */ |
1059 | case SVt_PVNV: |
1060 | case SVt_PVMG: |
1061 | case SVt_PVBM: |
1062 | case SVt_PVLV: |
1063 | if (SvOOK(sv)) |
1064 | (void)SvOOK_off(sv); |
1065 | break; |
1066 | case SVt_PVGV: |
1067 | if (SvFAKE(sv)) { |
1068 | sv_unglob(sv); |
1069 | break; |
1070 | } |
1071 | /* FALL THROUGH */ |
1072 | case SVt_PVAV: |
1073 | case SVt_PVHV: |
1074 | case SVt_PVCV: |
1075 | case SVt_PVFM: |
1076 | case SVt_PVIO: |
1077 | croak("Can't coerce %s to number in %s", sv_reftype(sv,0), |
1078 | op_name[op->op_type]); |
79072805 |
1079 | } |
463ee0b2 |
1080 | SvNVX(sv) = num; |
a0d0e21e |
1081 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 |
1082 | SvTAINT(sv); |
79072805 |
1083 | } |
1084 | |
a0d0e21e |
1085 | static void |
1086 | not_a_number(sv) |
1087 | SV *sv; |
1088 | { |
1089 | char tmpbuf[64]; |
1090 | char *d = tmpbuf; |
1091 | char *s; |
1092 | int i; |
1093 | |
1094 | for (s = SvPVX(sv), i = 50; *s && i; s++,i--) { |
1095 | int ch = *s; |
1096 | if (ch & 128 && !isprint(ch)) { |
1097 | *d++ = 'M'; |
1098 | *d++ = '-'; |
1099 | ch &= 127; |
1100 | } |
1101 | if (isprint(ch)) |
1102 | *d++ = ch; |
1103 | else { |
1104 | *d++ = '^'; |
1105 | *d++ = ch ^ 64; |
1106 | } |
1107 | } |
1108 | if (*s) { |
1109 | *d++ = '.'; |
1110 | *d++ = '.'; |
1111 | *d++ = '.'; |
1112 | } |
1113 | *d = '\0'; |
1114 | |
1115 | if (op) |
c07a80fd |
1116 | warn("Argument \"%s\" isn't numeric in %s", tmpbuf, |
a0d0e21e |
1117 | op_name[op->op_type]); |
1118 | else |
1119 | warn("Argument \"%s\" isn't numeric", tmpbuf); |
1120 | } |
1121 | |
1122 | IV |
79072805 |
1123 | sv_2iv(sv) |
1124 | register SV *sv; |
1125 | { |
1126 | if (!sv) |
1127 | return 0; |
8990e307 |
1128 | if (SvGMAGICAL(sv)) { |
463ee0b2 |
1129 | mg_get(sv); |
1130 | if (SvIOKp(sv)) |
1131 | return SvIVX(sv); |
748a9306 |
1132 | if (SvNOKp(sv)) { |
1133 | if (SvNVX(sv) < 0.0) |
1134 | return I_V(SvNVX(sv)); |
1135 | else |
5d94fbed |
1136 | return (IV) U_V(SvNVX(sv)); |
748a9306 |
1137 | } |
a0d0e21e |
1138 | if (SvPOKp(sv) && SvLEN(sv)) { |
1139 | if (dowarn && !looks_like_number(sv)) |
1140 | not_a_number(sv); |
1141 | return (IV)atol(SvPVX(sv)); |
1142 | } |
16d20bd9 |
1143 | if (!SvROK(sv)) { |
1144 | return 0; |
1145 | } |
463ee0b2 |
1146 | } |
ed6116ce |
1147 | if (SvTHINKFIRST(sv)) { |
a0d0e21e |
1148 | if (SvROK(sv)) { |
1149 | #ifdef OVERLOAD |
1150 | SV* tmpstr; |
1151 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) |
1152 | return SvIV(tmpstr); |
1153 | #endif /* OVERLOAD */ |
1154 | return (IV)SvRV(sv); |
1155 | } |
ed6116ce |
1156 | if (SvREADONLY(sv)) { |
748a9306 |
1157 | if (SvNOKp(sv)) { |
1158 | if (SvNVX(sv) < 0.0) |
1159 | return I_V(SvNVX(sv)); |
1160 | else |
5d94fbed |
1161 | return (IV) U_V(SvNVX(sv)); |
748a9306 |
1162 | } |
1163 | if (SvPOKp(sv) && SvLEN(sv)) { |
a0d0e21e |
1164 | if (dowarn && !looks_like_number(sv)) |
1165 | not_a_number(sv); |
1166 | return (IV)atol(SvPVX(sv)); |
1167 | } |
ed6116ce |
1168 | if (dowarn) |
8990e307 |
1169 | warn(warn_uninit); |
ed6116ce |
1170 | return 0; |
1171 | } |
79072805 |
1172 | } |
463ee0b2 |
1173 | switch (SvTYPE(sv)) { |
463ee0b2 |
1174 | case SVt_NULL: |
79072805 |
1175 | sv_upgrade(sv, SVt_IV); |
463ee0b2 |
1176 | return SvIVX(sv); |
1177 | case SVt_PV: |
79072805 |
1178 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 |
1179 | break; |
1180 | case SVt_NV: |
1181 | sv_upgrade(sv, SVt_PVNV); |
1182 | break; |
1183 | } |
748a9306 |
1184 | if (SvNOKp(sv)) { |
a5f75d66 |
1185 | (void)SvIOK_on(sv); |
748a9306 |
1186 | if (SvNVX(sv) < 0.0) |
1187 | SvIVX(sv) = I_V(SvNVX(sv)); |
1188 | else |
5d94fbed |
1189 | SvIVX(sv) = (IV) U_V(SvNVX(sv)); |
748a9306 |
1190 | } |
1191 | else if (SvPOKp(sv) && SvLEN(sv)) { |
a0d0e21e |
1192 | if (dowarn && !looks_like_number(sv)) |
1193 | not_a_number(sv); |
a5f75d66 |
1194 | (void)SvIOK_on(sv); |
a0d0e21e |
1195 | SvIVX(sv) = (IV)atol(SvPVX(sv)); |
93a17b20 |
1196 | } |
79072805 |
1197 | else { |
91bba347 |
1198 | if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
8990e307 |
1199 | warn(warn_uninit); |
a0d0e21e |
1200 | return 0; |
79072805 |
1201 | } |
a0d0e21e |
1202 | DEBUG_c(fprintf(stderr,"0x%lx 2iv(%ld)\n", |
1203 | (unsigned long)sv,(long)SvIVX(sv))); |
463ee0b2 |
1204 | return SvIVX(sv); |
79072805 |
1205 | } |
1206 | |
1207 | double |
1208 | sv_2nv(sv) |
1209 | register SV *sv; |
1210 | { |
1211 | if (!sv) |
1212 | return 0.0; |
8990e307 |
1213 | if (SvGMAGICAL(sv)) { |
463ee0b2 |
1214 | mg_get(sv); |
1215 | if (SvNOKp(sv)) |
1216 | return SvNVX(sv); |
a0d0e21e |
1217 | if (SvPOKp(sv) && SvLEN(sv)) { |
748a9306 |
1218 | if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e |
1219 | not_a_number(sv); |
463ee0b2 |
1220 | return atof(SvPVX(sv)); |
a0d0e21e |
1221 | } |
463ee0b2 |
1222 | if (SvIOKp(sv)) |
1223 | return (double)SvIVX(sv); |
16d20bd9 |
1224 | if (!SvROK(sv)) { |
1225 | return 0; |
1226 | } |
463ee0b2 |
1227 | } |
ed6116ce |
1228 | if (SvTHINKFIRST(sv)) { |
a0d0e21e |
1229 | if (SvROK(sv)) { |
1230 | #ifdef OVERLOAD |
1231 | SV* tmpstr; |
1232 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) |
1233 | return SvNV(tmpstr); |
1234 | #endif /* OVERLOAD */ |
1235 | return (double)(unsigned long)SvRV(sv); |
1236 | } |
ed6116ce |
1237 | if (SvREADONLY(sv)) { |
748a9306 |
1238 | if (SvPOKp(sv) && SvLEN(sv)) { |
1239 | if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e |
1240 | not_a_number(sv); |
ed6116ce |
1241 | return atof(SvPVX(sv)); |
a0d0e21e |
1242 | } |
748a9306 |
1243 | if (SvIOKp(sv)) |
8990e307 |
1244 | return (double)SvIVX(sv); |
ed6116ce |
1245 | if (dowarn) |
8990e307 |
1246 | warn(warn_uninit); |
ed6116ce |
1247 | return 0.0; |
1248 | } |
79072805 |
1249 | } |
1250 | if (SvTYPE(sv) < SVt_NV) { |
463ee0b2 |
1251 | if (SvTYPE(sv) == SVt_IV) |
1252 | sv_upgrade(sv, SVt_PVNV); |
1253 | else |
1254 | sv_upgrade(sv, SVt_NV); |
a0d0e21e |
1255 | DEBUG_c(fprintf(stderr,"0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv))); |
79072805 |
1256 | } |
1257 | else if (SvTYPE(sv) < SVt_PVNV) |
1258 | sv_upgrade(sv, SVt_PVNV); |
748a9306 |
1259 | if (SvIOKp(sv) && |
1260 | (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) |
93a17b20 |
1261 | { |
463ee0b2 |
1262 | SvNVX(sv) = (double)SvIVX(sv); |
93a17b20 |
1263 | } |
748a9306 |
1264 | else if (SvPOKp(sv) && SvLEN(sv)) { |
1265 | if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e |
1266 | not_a_number(sv); |
463ee0b2 |
1267 | SvNVX(sv) = atof(SvPVX(sv)); |
93a17b20 |
1268 | } |
79072805 |
1269 | else { |
91bba347 |
1270 | if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
8990e307 |
1271 | warn(warn_uninit); |
a0d0e21e |
1272 | return 0.0; |
79072805 |
1273 | } |
1274 | SvNOK_on(sv); |
a0d0e21e |
1275 | DEBUG_c(fprintf(stderr,"0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv))); |
463ee0b2 |
1276 | return SvNVX(sv); |
79072805 |
1277 | } |
1278 | |
1279 | char * |
463ee0b2 |
1280 | sv_2pv(sv, lp) |
79072805 |
1281 | register SV *sv; |
463ee0b2 |
1282 | STRLEN *lp; |
79072805 |
1283 | { |
1284 | register char *s; |
1285 | int olderrno; |
1286 | |
463ee0b2 |
1287 | if (!sv) { |
1288 | *lp = 0; |
1289 | return ""; |
1290 | } |
8990e307 |
1291 | if (SvGMAGICAL(sv)) { |
463ee0b2 |
1292 | mg_get(sv); |
1293 | if (SvPOKp(sv)) { |
1294 | *lp = SvCUR(sv); |
1295 | return SvPVX(sv); |
1296 | } |
1297 | if (SvIOKp(sv)) { |
a0d0e21e |
1298 | (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); |
1299 | goto tokensave; |
463ee0b2 |
1300 | } |
1301 | if (SvNOKp(sv)) { |
a0d0e21e |
1302 | Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); |
1303 | goto tokensave; |
463ee0b2 |
1304 | } |
16d20bd9 |
1305 | if (!SvROK(sv)) { |
1306 | *lp = 0; |
1307 | return ""; |
1308 | } |
463ee0b2 |
1309 | } |
ed6116ce |
1310 | if (SvTHINKFIRST(sv)) { |
1311 | if (SvROK(sv)) { |
a0d0e21e |
1312 | #ifdef OVERLOAD |
1313 | SV* tmpstr; |
1314 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string))) |
1315 | return SvPV(tmpstr,*lp); |
1316 | #endif /* OVERLOAD */ |
ed6116ce |
1317 | sv = (SV*)SvRV(sv); |
1318 | if (!sv) |
1319 | s = "NULLREF"; |
1320 | else { |
1321 | switch (SvTYPE(sv)) { |
1322 | case SVt_NULL: |
1323 | case SVt_IV: |
1324 | case SVt_NV: |
1325 | case SVt_RV: |
1326 | case SVt_PV: |
1327 | case SVt_PVIV: |
1328 | case SVt_PVNV: |
1329 | case SVt_PVBM: |
1330 | case SVt_PVMG: s = "SCALAR"; break; |
1331 | case SVt_PVLV: s = "LVALUE"; break; |
1332 | case SVt_PVAV: s = "ARRAY"; break; |
1333 | case SVt_PVHV: s = "HASH"; break; |
1334 | case SVt_PVCV: s = "CODE"; break; |
1335 | case SVt_PVGV: s = "GLOB"; break; |
1336 | case SVt_PVFM: s = "FORMATLINE"; break; |
8990e307 |
1337 | case SVt_PVIO: s = "FILEHANDLE"; break; |
ed6116ce |
1338 | default: s = "UNKNOWN"; break; |
1339 | } |
1340 | if (SvOBJECT(sv)) |
1341 | sprintf(tokenbuf, "%s=%s(0x%lx)", |
1342 | HvNAME(SvSTASH(sv)), s, (unsigned long)sv); |
1343 | else |
1344 | sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv); |
a0d0e21e |
1345 | goto tokensaveref; |
463ee0b2 |
1346 | } |
ed6116ce |
1347 | *lp = strlen(s); |
1348 | return s; |
79072805 |
1349 | } |
ed6116ce |
1350 | if (SvREADONLY(sv)) { |
748a9306 |
1351 | if (SvNOKp(sv)) { |
a0d0e21e |
1352 | Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); |
1353 | goto tokensave; |
ed6116ce |
1354 | } |
8bb9dbe4 |
1355 | if (SvIOKp(sv)) { |
1356 | (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); |
1357 | goto tokensave; |
1358 | } |
ed6116ce |
1359 | if (dowarn) |
8990e307 |
1360 | warn(warn_uninit); |
ed6116ce |
1361 | *lp = 0; |
1362 | return ""; |
79072805 |
1363 | } |
79072805 |
1364 | } |
1365 | if (!SvUPGRADE(sv, SVt_PV)) |
1366 | return 0; |
748a9306 |
1367 | if (SvNOKp(sv)) { |
79072805 |
1368 | if (SvTYPE(sv) < SVt_PVNV) |
1369 | sv_upgrade(sv, SVt_PVNV); |
1370 | SvGROW(sv, 28); |
463ee0b2 |
1371 | s = SvPVX(sv); |
79072805 |
1372 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 |
1373 | #ifdef apollo |
463ee0b2 |
1374 | if (SvNVX(sv) == 0.0) |
79072805 |
1375 | (void)strcpy(s,"0"); |
1376 | else |
1377 | #endif /*apollo*/ |
a0d0e21e |
1378 | Gconvert(SvNVX(sv), DBL_DIG, 0, s); |
79072805 |
1379 | errno = olderrno; |
a0d0e21e |
1380 | #ifdef FIXNEGATIVEZERO |
1381 | if (*s == '-' && s[1] == '0' && !s[2]) |
1382 | strcpy(s,"0"); |
1383 | #endif |
79072805 |
1384 | while (*s) s++; |
1385 | #ifdef hcx |
1386 | if (s[-1] == '.') |
1387 | s--; |
1388 | #endif |
1389 | } |
748a9306 |
1390 | else if (SvIOKp(sv)) { |
79072805 |
1391 | if (SvTYPE(sv) < SVt_PVIV) |
1392 | sv_upgrade(sv, SVt_PVIV); |
1393 | SvGROW(sv, 11); |
463ee0b2 |
1394 | s = SvPVX(sv); |
79072805 |
1395 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
a0d0e21e |
1396 | (void)sprintf(s,"%ld",(long)SvIVX(sv)); |
79072805 |
1397 | errno = olderrno; |
1398 | while (*s) s++; |
1399 | } |
1400 | else { |
91bba347 |
1401 | if (dowarn && !localizing && !(SvFLAGS(sv) & SVs_PADTMP)) |
8990e307 |
1402 | warn(warn_uninit); |
a0d0e21e |
1403 | *lp = 0; |
1404 | return ""; |
79072805 |
1405 | } |
1406 | *s = '\0'; |
463ee0b2 |
1407 | *lp = s - SvPVX(sv); |
1408 | SvCUR_set(sv, *lp); |
79072805 |
1409 | SvPOK_on(sv); |
a0d0e21e |
1410 | DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv))); |
463ee0b2 |
1411 | return SvPVX(sv); |
a0d0e21e |
1412 | |
1413 | tokensave: |
1414 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ |
1415 | /* Sneaky stuff here */ |
1416 | |
1417 | tokensaveref: |
1418 | sv = sv_newmortal(); |
1419 | *lp = strlen(tokenbuf); |
1420 | sv_setpvn(sv, tokenbuf, *lp); |
1421 | return SvPVX(sv); |
1422 | } |
1423 | else { |
1424 | STRLEN len; |
1425 | |
1426 | #ifdef FIXNEGATIVEZERO |
1427 | if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2]) |
1428 | strcpy(tokenbuf,"0"); |
1429 | #endif |
1430 | (void)SvUPGRADE(sv, SVt_PV); |
1431 | len = *lp = strlen(tokenbuf); |
1432 | s = SvGROW(sv, len + 1); |
1433 | SvCUR_set(sv, len); |
1434 | (void)strcpy(s, tokenbuf); |
1435 | /* NO SvPOK_on(sv) here! */ |
1436 | return s; |
1437 | } |
463ee0b2 |
1438 | } |
1439 | |
1440 | /* This function is only called on magical items */ |
1441 | bool |
1442 | sv_2bool(sv) |
1443 | register SV *sv; |
1444 | { |
8990e307 |
1445 | if (SvGMAGICAL(sv)) |
463ee0b2 |
1446 | mg_get(sv); |
1447 | |
a0d0e21e |
1448 | if (!SvOK(sv)) |
1449 | return 0; |
1450 | if (SvROK(sv)) { |
1451 | #ifdef OVERLOAD |
1452 | { |
1453 | SV* tmpsv; |
1454 | if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) |
1455 | return SvTRUE(tmpsv); |
1456 | } |
1457 | #endif /* OVERLOAD */ |
1458 | return SvRV(sv) != 0; |
1459 | } |
463ee0b2 |
1460 | if (SvPOKp(sv)) { |
1461 | register XPV* Xpv; |
1462 | if ((Xpv = (XPV*)SvANY(sv)) && |
1463 | (*Xpv->xpv_pv > '0' || |
1464 | Xpv->xpv_cur > 1 || |
1465 | (Xpv->xpv_cur && *Xpv->xpv_pv != '0'))) |
1466 | return 1; |
1467 | else |
1468 | return 0; |
1469 | } |
1470 | else { |
1471 | if (SvIOKp(sv)) |
1472 | return SvIVX(sv) != 0; |
1473 | else { |
1474 | if (SvNOKp(sv)) |
1475 | return SvNVX(sv) != 0.0; |
1476 | else |
1477 | return FALSE; |
1478 | } |
1479 | } |
79072805 |
1480 | } |
1481 | |
1482 | /* Note: sv_setsv() should not be called with a source string that needs |
463ee0b2 |
1483 | * to be reused, since it may destroy the source string if it is marked |
79072805 |
1484 | * as temporary. |
1485 | */ |
1486 | |
1487 | void |
1488 | sv_setsv(dstr,sstr) |
1489 | SV *dstr; |
1490 | register SV *sstr; |
1491 | { |
8990e307 |
1492 | register U32 sflags; |
1493 | register int dtype; |
1494 | register int stype; |
463ee0b2 |
1495 | |
79072805 |
1496 | if (sstr == dstr) |
1497 | return; |
ed6116ce |
1498 | if (SvTHINKFIRST(dstr)) { |
8990e307 |
1499 | if (SvREADONLY(dstr) && curcop != &compiling) |
ed6116ce |
1500 | croak(no_modify); |
1501 | if (SvROK(dstr)) |
1502 | sv_unref(dstr); |
1503 | } |
79072805 |
1504 | if (!sstr) |
1505 | sstr = &sv_undef; |
8990e307 |
1506 | stype = SvTYPE(sstr); |
1507 | dtype = SvTYPE(dstr); |
79072805 |
1508 | |
8e07c86e |
1509 | if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) { |
1510 | sv_unglob(dstr); /* so fake GLOB won't perpetuate */ |
4633a7c4 |
1511 | sv_setpvn(dstr, "", 0); |
1512 | (void)SvPOK_only(dstr); |
8e07c86e |
1513 | dtype = SvTYPE(dstr); |
1514 | } |
1515 | |
a0d0e21e |
1516 | #ifdef OVERLOAD |
1517 | SvAMAGIC_off(dstr); |
1518 | #endif /* OVERLOAD */ |
463ee0b2 |
1519 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 |
1520 | |
8990e307 |
1521 | switch (stype) { |
79072805 |
1522 | case SVt_NULL: |
a0d0e21e |
1523 | (void)SvOK_off(dstr); |
79072805 |
1524 | return; |
463ee0b2 |
1525 | case SVt_IV: |
8990e307 |
1526 | if (dtype <= SVt_PV) { |
1527 | if (dtype < SVt_IV) |
1528 | sv_upgrade(dstr, SVt_IV); |
8990e307 |
1529 | else if (dtype == SVt_NV) |
1530 | sv_upgrade(dstr, SVt_PVNV); |
a0d0e21e |
1531 | else if (dtype <= SVt_PV) |
1532 | sv_upgrade(dstr, SVt_PVIV); |
8990e307 |
1533 | } |
463ee0b2 |
1534 | break; |
1535 | case SVt_NV: |
8990e307 |
1536 | if (dtype <= SVt_PVIV) { |
1537 | if (dtype < SVt_NV) |
1538 | sv_upgrade(dstr, SVt_NV); |
8990e307 |
1539 | else if (dtype == SVt_PVIV) |
1540 | sv_upgrade(dstr, SVt_PVNV); |
a0d0e21e |
1541 | else if (dtype <= SVt_PV) |
1542 | sv_upgrade(dstr, SVt_PVNV); |
8990e307 |
1543 | } |
463ee0b2 |
1544 | break; |
ed6116ce |
1545 | case SVt_RV: |
8990e307 |
1546 | if (dtype < SVt_RV) |
ed6116ce |
1547 | sv_upgrade(dstr, SVt_RV); |
c07a80fd |
1548 | else if (dtype == SVt_PVGV && |
1549 | SvTYPE(SvRV(sstr)) == SVt_PVGV) { |
1550 | sstr = SvRV(sstr); |
a5f75d66 |
1551 | if (sstr == dstr) { |
1552 | if (curcop->cop_stash != GvSTASH(dstr)) |
1553 | GvIMPORTED_on(dstr); |
1554 | GvMULTI_on(dstr); |
1555 | return; |
1556 | } |
c07a80fd |
1557 | goto glob_assign; |
1558 | } |
ed6116ce |
1559 | break; |
463ee0b2 |
1560 | case SVt_PV: |
8990e307 |
1561 | if (dtype < SVt_PV) |
463ee0b2 |
1562 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 |
1563 | break; |
1564 | case SVt_PVIV: |
8990e307 |
1565 | if (dtype < SVt_PVIV) |
463ee0b2 |
1566 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 |
1567 | break; |
1568 | case SVt_PVNV: |
8990e307 |
1569 | if (dtype < SVt_PVNV) |
463ee0b2 |
1570 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 |
1571 | break; |
4633a7c4 |
1572 | |
1573 | case SVt_PVLV: |
1574 | sv_upgrade(dstr, SVt_PVNV); |
1575 | break; |
1576 | |
1577 | case SVt_PVAV: |
1578 | case SVt_PVHV: |
1579 | case SVt_PVCV: |
4633a7c4 |
1580 | case SVt_PVIO: |
1581 | if (op) |
1582 | croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0), |
1583 | op_name[op->op_type]); |
1584 | else |
1585 | croak("Bizarre copy of %s", sv_reftype(sstr, 0)); |
1586 | break; |
1587 | |
79072805 |
1588 | case SVt_PVGV: |
8990e307 |
1589 | if (dtype <= SVt_PVGV) { |
c07a80fd |
1590 | glob_assign: |
a5f75d66 |
1591 | if (dtype != SVt_PVGV) { |
a0d0e21e |
1592 | char *name = GvNAME(sstr); |
1593 | STRLEN len = GvNAMELEN(sstr); |
463ee0b2 |
1594 | sv_upgrade(dstr, SVt_PVGV); |
a0d0e21e |
1595 | sv_magic(dstr, dstr, '*', name, len); |
1596 | GvSTASH(dstr) = GvSTASH(sstr); |
1597 | GvNAME(dstr) = savepvn(name, len); |
1598 | GvNAMELEN(dstr) = len; |
1599 | SvFAKE_on(dstr); /* can coerce to non-glob */ |
1600 | } |
1601 | (void)SvOK_off(dstr); |
a5f75d66 |
1602 | GvINTRO_off(dstr); /* one-shot flag */ |
1603 | gp_free(dstr); |
79072805 |
1604 | GvGP(dstr) = gp_ref(GvGP(sstr)); |
8990e307 |
1605 | SvTAINT(dstr); |
a5f75d66 |
1606 | if (curcop->cop_stash != GvSTASH(dstr)) |
1607 | GvIMPORTED_on(dstr); |
1608 | GvMULTI_on(dstr); |
79072805 |
1609 | return; |
1610 | } |
1611 | /* FALL THROUGH */ |
1612 | |
1613 | default: |
8990e307 |
1614 | if (dtype < stype) |
1615 | sv_upgrade(dstr, stype); |
1616 | if (SvGMAGICAL(sstr)) |
79072805 |
1617 | mg_get(sstr); |
79072805 |
1618 | } |
1619 | |
8990e307 |
1620 | sflags = SvFLAGS(sstr); |
1621 | |
1622 | if (sflags & SVf_ROK) { |
1623 | if (dtype >= SVt_PV) { |
1624 | if (dtype == SVt_PVGV) { |
1625 | SV *sref = SvREFCNT_inc(SvRV(sstr)); |
1626 | SV *dref = 0; |
a5f75d66 |
1627 | int intro = GvINTRO(dstr); |
a0d0e21e |
1628 | |
1629 | if (intro) { |
1630 | GP *gp; |
1631 | GvGP(dstr)->gp_refcnt--; |
a5f75d66 |
1632 | GvINTRO_off(dstr); /* one-shot flag */ |
a0d0e21e |
1633 | Newz(602,gp, 1, GP); |
1634 | GvGP(dstr) = gp; |
1635 | GvREFCNT(dstr) = 1; |
1636 | GvSV(dstr) = NEWSV(72,0); |
1637 | GvLINE(dstr) = curcop->cop_line; |
1638 | GvEGV(dstr) = dstr; |
a0d0e21e |
1639 | } |
a5f75d66 |
1640 | GvMULTI_on(dstr); |
8990e307 |
1641 | switch (SvTYPE(sref)) { |
1642 | case SVt_PVAV: |
a0d0e21e |
1643 | if (intro) |
1644 | SAVESPTR(GvAV(dstr)); |
1645 | else |
1646 | dref = (SV*)GvAV(dstr); |
8990e307 |
1647 | GvAV(dstr) = (AV*)sref; |
a5f75d66 |
1648 | if (curcop->cop_stash != GvSTASH(dstr)) |
1649 | GvIMPORTED_AV_on(dstr); |
8990e307 |
1650 | break; |
1651 | case SVt_PVHV: |
a0d0e21e |
1652 | if (intro) |
1653 | SAVESPTR(GvHV(dstr)); |
1654 | else |
1655 | dref = (SV*)GvHV(dstr); |
8990e307 |
1656 | GvHV(dstr) = (HV*)sref; |
a5f75d66 |
1657 | if (curcop->cop_stash != GvSTASH(dstr)) |
1658 | GvIMPORTED_HV_on(dstr); |
8990e307 |
1659 | break; |
1660 | case SVt_PVCV: |
a0d0e21e |
1661 | if (intro) |
1662 | SAVESPTR(GvCV(dstr)); |
748a9306 |
1663 | else { |
1664 | CV* cv = GvCV(dstr); |
4633a7c4 |
1665 | if (cv) { |
1666 | dref = (SV*)cv; |
1667 | if (dowarn && sref != dref && |
1668 | !GvCVGEN((GV*)dstr) && |
1669 | (CvROOT(cv) || CvXSUB(cv)) ) |
1670 | warn("Subroutine %s redefined", |
1671 | GvENAME((GV*)dstr)); |
1672 | SvFAKE_on(cv); |
1673 | } |
748a9306 |
1674 | } |
a5f75d66 |
1675 | if (GvCV(dstr) != (CV*)sref) { |
1676 | GvCV(dstr) = (CV*)sref; |
1677 | GvASSUMECV_on(dstr); |
1678 | } |
1679 | if (curcop->cop_stash != GvSTASH(dstr)) |
1680 | GvIMPORTED_CV_on(dstr); |
8990e307 |
1681 | break; |
91bba347 |
1682 | case SVt_PVIO: |
1683 | if (intro) |
1684 | SAVESPTR(GvIOp(dstr)); |
1685 | else |
1686 | dref = (SV*)GvIOp(dstr); |
1687 | GvIOp(dstr) = (IO*)sref; |
1688 | break; |
8990e307 |
1689 | default: |
a0d0e21e |
1690 | if (intro) |
1691 | SAVESPTR(GvSV(dstr)); |
1692 | else |
1693 | dref = (SV*)GvSV(dstr); |
8990e307 |
1694 | GvSV(dstr) = sref; |
a5f75d66 |
1695 | if (curcop->cop_stash != GvSTASH(dstr)) |
1696 | GvIMPORTED_SV_on(dstr); |
8990e307 |
1697 | break; |
1698 | } |
1699 | if (dref) |
1700 | SvREFCNT_dec(dref); |
a0d0e21e |
1701 | if (intro) |
1702 | SAVEFREESV(sref); |
8990e307 |
1703 | SvTAINT(dstr); |
1704 | return; |
1705 | } |
a0d0e21e |
1706 | if (SvPVX(dstr)) { |
8990e307 |
1707 | Safefree(SvPVX(dstr)); |
a0d0e21e |
1708 | SvLEN(dstr)=SvCUR(dstr)=0; |
1709 | } |
8990e307 |
1710 | } |
a0d0e21e |
1711 | (void)SvOK_off(dstr); |
8990e307 |
1712 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce |
1713 | SvROK_on(dstr); |
8990e307 |
1714 | if (sflags & SVp_NOK) { |
ed6116ce |
1715 | SvNOK_on(dstr); |
1716 | SvNVX(dstr) = SvNVX(sstr); |
1717 | } |
8990e307 |
1718 | if (sflags & SVp_IOK) { |
a0d0e21e |
1719 | (void)SvIOK_on(dstr); |
ed6116ce |
1720 | SvIVX(dstr) = SvIVX(sstr); |
1721 | } |
a0d0e21e |
1722 | #ifdef OVERLOAD |
1723 | if (SvAMAGIC(sstr)) { |
1724 | SvAMAGIC_on(dstr); |
1725 | } |
1726 | #endif /* OVERLOAD */ |
ed6116ce |
1727 | } |
8990e307 |
1728 | else if (sflags & SVp_POK) { |
79072805 |
1729 | |
1730 | /* |
1731 | * Check to see if we can just swipe the string. If so, it's a |
1732 | * possible small lose on short strings, but a big win on long ones. |
463ee0b2 |
1733 | * It might even be a win on short strings if SvPVX(dstr) |
1734 | * has to be allocated and SvPVX(sstr) has to be freed. |
79072805 |
1735 | */ |
1736 | |
a5f75d66 |
1737 | if (SvTEMP(sstr) && /* slated for free anyway? */ |
1738 | !(sflags & SVf_OOK)) /* and not involved in OOK hack? */ |
1739 | { |
adbc6bb1 |
1740 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a5f75d66 |
1741 | if (SvOOK(dstr)) { |
1742 | SvFLAGS(dstr) &= ~SVf_OOK; |
1743 | Safefree(SvPVX(dstr) - SvIVX(dstr)); |
1744 | } |
1745 | else |
1746 | Safefree(SvPVX(dstr)); |
79072805 |
1747 | } |
a5f75d66 |
1748 | (void)SvPOK_only(dstr); |
463ee0b2 |
1749 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 |
1750 | SvLEN_set(dstr, SvLEN(sstr)); |
1751 | SvCUR_set(dstr, SvCUR(sstr)); |
79072805 |
1752 | SvTEMP_off(dstr); |
a5f75d66 |
1753 | (void)SvOK_off(sstr); |
79072805 |
1754 | SvPV_set(sstr, Nullch); |
1755 | SvLEN_set(sstr, 0); |
a5f75d66 |
1756 | SvCUR_set(sstr, 0); |
1757 | SvTEMP_off(sstr); |
79072805 |
1758 | } |
1759 | else { /* have to copy actual string */ |
8990e307 |
1760 | STRLEN len = SvCUR(sstr); |
1761 | |
1762 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ |
1763 | Move(SvPVX(sstr),SvPVX(dstr),len,char); |
1764 | SvCUR_set(dstr, len); |
1765 | *SvEND(dstr) = '\0'; |
a0d0e21e |
1766 | (void)SvPOK_only(dstr); |
79072805 |
1767 | } |
1768 | /*SUPPRESS 560*/ |
8990e307 |
1769 | if (sflags & SVp_NOK) { |
79072805 |
1770 | SvNOK_on(dstr); |
463ee0b2 |
1771 | SvNVX(dstr) = SvNVX(sstr); |
79072805 |
1772 | } |
8990e307 |
1773 | if (sflags & SVp_IOK) { |
a0d0e21e |
1774 | (void)SvIOK_on(dstr); |
463ee0b2 |
1775 | SvIVX(dstr) = SvIVX(sstr); |
79072805 |
1776 | } |
1777 | } |
8990e307 |
1778 | else if (sflags & SVp_NOK) { |
463ee0b2 |
1779 | SvNVX(dstr) = SvNVX(sstr); |
a0d0e21e |
1780 | (void)SvNOK_only(dstr); |
79072805 |
1781 | if (SvIOK(sstr)) { |
a0d0e21e |
1782 | (void)SvIOK_on(dstr); |
463ee0b2 |
1783 | SvIVX(dstr) = SvIVX(sstr); |
79072805 |
1784 | } |
1785 | } |
8990e307 |
1786 | else if (sflags & SVp_IOK) { |
a0d0e21e |
1787 | (void)SvIOK_only(dstr); |
463ee0b2 |
1788 | SvIVX(dstr) = SvIVX(sstr); |
79072805 |
1789 | } |
1790 | else { |
a0d0e21e |
1791 | (void)SvOK_off(dstr); |
1792 | } |
463ee0b2 |
1793 | SvTAINT(dstr); |
79072805 |
1794 | } |
1795 | |
1796 | void |
1797 | sv_setpvn(sv,ptr,len) |
1798 | register SV *sv; |
1799 | register char *ptr; |
1800 | register STRLEN len; |
1801 | { |
748a9306 |
1802 | assert(len >= 0); |
ed6116ce |
1803 | if (SvTHINKFIRST(sv)) { |
8990e307 |
1804 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
1805 | croak(no_modify); |
1806 | if (SvROK(sv)) |
1807 | sv_unref(sv); |
1808 | } |
463ee0b2 |
1809 | if (!ptr) { |
a0d0e21e |
1810 | (void)SvOK_off(sv); |
463ee0b2 |
1811 | return; |
1812 | } |
c07a80fd |
1813 | if (SvTYPE(sv) >= SVt_PV) { |
1814 | if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
1815 | sv_unglob(sv); |
1816 | } |
1817 | else if (!sv_upgrade(sv, SVt_PV)) |
79072805 |
1818 | return; |
1819 | SvGROW(sv, len + 1); |
a0d0e21e |
1820 | Move(ptr,SvPVX(sv),len,char); |
79072805 |
1821 | SvCUR_set(sv, len); |
1822 | *SvEND(sv) = '\0'; |
a0d0e21e |
1823 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 |
1824 | SvTAINT(sv); |
79072805 |
1825 | } |
1826 | |
1827 | void |
1828 | sv_setpv(sv,ptr) |
1829 | register SV *sv; |
1830 | register char *ptr; |
1831 | { |
1832 | register STRLEN len; |
1833 | |
ed6116ce |
1834 | if (SvTHINKFIRST(sv)) { |
8990e307 |
1835 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
1836 | croak(no_modify); |
1837 | if (SvROK(sv)) |
1838 | sv_unref(sv); |
1839 | } |
463ee0b2 |
1840 | if (!ptr) { |
a0d0e21e |
1841 | (void)SvOK_off(sv); |
463ee0b2 |
1842 | return; |
1843 | } |
79072805 |
1844 | len = strlen(ptr); |
c07a80fd |
1845 | if (SvTYPE(sv) >= SVt_PV) { |
1846 | if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) |
1847 | sv_unglob(sv); |
1848 | } |
1849 | else if (!sv_upgrade(sv, SVt_PV)) |
79072805 |
1850 | return; |
1851 | SvGROW(sv, len + 1); |
463ee0b2 |
1852 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 |
1853 | SvCUR_set(sv, len); |
a0d0e21e |
1854 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 |
1855 | SvTAINT(sv); |
1856 | } |
1857 | |
1858 | void |
1859 | sv_usepvn(sv,ptr,len) |
1860 | register SV *sv; |
1861 | register char *ptr; |
1862 | register STRLEN len; |
1863 | { |
ed6116ce |
1864 | if (SvTHINKFIRST(sv)) { |
8990e307 |
1865 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
1866 | croak(no_modify); |
1867 | if (SvROK(sv)) |
1868 | sv_unref(sv); |
1869 | } |
463ee0b2 |
1870 | if (!SvUPGRADE(sv, SVt_PV)) |
1871 | return; |
1872 | if (!ptr) { |
a0d0e21e |
1873 | (void)SvOK_off(sv); |
463ee0b2 |
1874 | return; |
1875 | } |
1876 | if (SvPVX(sv)) |
1877 | Safefree(SvPVX(sv)); |
1878 | Renew(ptr, len+1, char); |
1879 | SvPVX(sv) = ptr; |
1880 | SvCUR_set(sv, len); |
1881 | SvLEN_set(sv, len+1); |
1882 | *SvEND(sv) = '\0'; |
a0d0e21e |
1883 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 |
1884 | SvTAINT(sv); |
79072805 |
1885 | } |
1886 | |
1887 | void |
1888 | sv_chop(sv,ptr) /* like set but assuming ptr is in sv */ |
1889 | register SV *sv; |
1890 | register char *ptr; |
1891 | { |
1892 | register STRLEN delta; |
1893 | |
a0d0e21e |
1894 | if (!ptr || !SvPOKp(sv)) |
79072805 |
1895 | return; |
ed6116ce |
1896 | if (SvTHINKFIRST(sv)) { |
8990e307 |
1897 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
1898 | croak(no_modify); |
1899 | if (SvROK(sv)) |
1900 | sv_unref(sv); |
1901 | } |
79072805 |
1902 | if (SvTYPE(sv) < SVt_PVIV) |
1903 | sv_upgrade(sv,SVt_PVIV); |
1904 | |
1905 | if (!SvOOK(sv)) { |
463ee0b2 |
1906 | SvIVX(sv) = 0; |
79072805 |
1907 | SvFLAGS(sv) |= SVf_OOK; |
1908 | } |
8990e307 |
1909 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK); |
463ee0b2 |
1910 | delta = ptr - SvPVX(sv); |
79072805 |
1911 | SvLEN(sv) -= delta; |
1912 | SvCUR(sv) -= delta; |
463ee0b2 |
1913 | SvPVX(sv) += delta; |
1914 | SvIVX(sv) += delta; |
79072805 |
1915 | } |
1916 | |
1917 | void |
1918 | sv_catpvn(sv,ptr,len) |
1919 | register SV *sv; |
1920 | register char *ptr; |
1921 | register STRLEN len; |
1922 | { |
463ee0b2 |
1923 | STRLEN tlen; |
748a9306 |
1924 | char *junk; |
a0d0e21e |
1925 | |
748a9306 |
1926 | junk = SvPV_force(sv, tlen); |
463ee0b2 |
1927 | SvGROW(sv, tlen + len + 1); |
4633a7c4 |
1928 | if (ptr == junk) |
1929 | ptr = SvPVX(sv); |
463ee0b2 |
1930 | Move(ptr,SvPVX(sv)+tlen,len,char); |
79072805 |
1931 | SvCUR(sv) += len; |
1932 | *SvEND(sv) = '\0'; |
a0d0e21e |
1933 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 |
1934 | SvTAINT(sv); |
79072805 |
1935 | } |
1936 | |
1937 | void |
1938 | sv_catsv(dstr,sstr) |
1939 | SV *dstr; |
1940 | register SV *sstr; |
1941 | { |
1942 | char *s; |
463ee0b2 |
1943 | STRLEN len; |
79072805 |
1944 | if (!sstr) |
1945 | return; |
463ee0b2 |
1946 | if (s = SvPV(sstr, len)) |
1947 | sv_catpvn(dstr,s,len); |
79072805 |
1948 | } |
1949 | |
1950 | void |
1951 | sv_catpv(sv,ptr) |
1952 | register SV *sv; |
1953 | register char *ptr; |
1954 | { |
1955 | register STRLEN len; |
463ee0b2 |
1956 | STRLEN tlen; |
748a9306 |
1957 | char *junk; |
79072805 |
1958 | |
79072805 |
1959 | if (!ptr) |
1960 | return; |
748a9306 |
1961 | junk = SvPV_force(sv, tlen); |
79072805 |
1962 | len = strlen(ptr); |
463ee0b2 |
1963 | SvGROW(sv, tlen + len + 1); |
4633a7c4 |
1964 | if (ptr == junk) |
1965 | ptr = SvPVX(sv); |
463ee0b2 |
1966 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
79072805 |
1967 | SvCUR(sv) += len; |
a0d0e21e |
1968 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 |
1969 | SvTAINT(sv); |
79072805 |
1970 | } |
1971 | |
79072805 |
1972 | SV * |
1973 | #ifdef LEAKTEST |
1974 | newSV(x,len) |
1975 | I32 x; |
1976 | #else |
1977 | newSV(len) |
1978 | #endif |
1979 | STRLEN len; |
1980 | { |
1981 | register SV *sv; |
1982 | |
463ee0b2 |
1983 | new_SV(); |
8990e307 |
1984 | SvANY(sv) = 0; |
1985 | SvREFCNT(sv) = 1; |
1986 | SvFLAGS(sv) = 0; |
79072805 |
1987 | if (len) { |
1988 | sv_upgrade(sv, SVt_PV); |
1989 | SvGROW(sv, len + 1); |
1990 | } |
1991 | return sv; |
1992 | } |
1993 | |
1994 | void |
1995 | sv_magic(sv, obj, how, name, namlen) |
1996 | register SV *sv; |
1997 | SV *obj; |
a0d0e21e |
1998 | int how; |
79072805 |
1999 | char *name; |
463ee0b2 |
2000 | I32 namlen; |
79072805 |
2001 | { |
2002 | MAGIC* mg; |
2003 | |
a0d0e21e |
2004 | if (SvREADONLY(sv) && curcop != &compiling && !strchr("gB", how)) |
2005 | croak(no_modify); |
4633a7c4 |
2006 | if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 |
2007 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
2008 | if (how == 't') |
2009 | mg->mg_len |= 1; |
463ee0b2 |
2010 | return; |
748a9306 |
2011 | } |
463ee0b2 |
2012 | } |
2013 | else { |
2014 | if (!SvUPGRADE(sv, SVt_PVMG)) |
2015 | return; |
463ee0b2 |
2016 | } |
79072805 |
2017 | Newz(702,mg, 1, MAGIC); |
2018 | mg->mg_moremagic = SvMAGIC(sv); |
463ee0b2 |
2019 | |
79072805 |
2020 | SvMAGIC(sv) = mg; |
748a9306 |
2021 | if (!obj || obj == sv || how == '#') |
8990e307 |
2022 | mg->mg_obj = obj; |
85e6fe83 |
2023 | else { |
8990e307 |
2024 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 |
2025 | mg->mg_flags |= MGf_REFCOUNTED; |
2026 | } |
79072805 |
2027 | mg->mg_type = how; |
463ee0b2 |
2028 | mg->mg_len = namlen; |
2029 | if (name && namlen >= 0) |
a0d0e21e |
2030 | mg->mg_ptr = savepvn(name, namlen); |
79072805 |
2031 | switch (how) { |
2032 | case 0: |
2033 | mg->mg_virtual = &vtbl_sv; |
2034 | break; |
a0d0e21e |
2035 | #ifdef OVERLOAD |
2036 | case 'A': |
2037 | mg->mg_virtual = &vtbl_amagic; |
2038 | break; |
2039 | case 'a': |
2040 | mg->mg_virtual = &vtbl_amagicelem; |
2041 | break; |
2042 | case 'c': |
2043 | mg->mg_virtual = 0; |
2044 | break; |
2045 | #endif /* OVERLOAD */ |
79072805 |
2046 | case 'B': |
2047 | mg->mg_virtual = &vtbl_bm; |
2048 | break; |
79072805 |
2049 | case 'E': |
2050 | mg->mg_virtual = &vtbl_env; |
2051 | break; |
2052 | case 'e': |
2053 | mg->mg_virtual = &vtbl_envelem; |
2054 | break; |
93a17b20 |
2055 | case 'g': |
2056 | mg->mg_virtual = &vtbl_mglob; |
2057 | break; |
463ee0b2 |
2058 | case 'I': |
2059 | mg->mg_virtual = &vtbl_isa; |
2060 | break; |
2061 | case 'i': |
2062 | mg->mg_virtual = &vtbl_isaelem; |
2063 | break; |
79072805 |
2064 | case 'L': |
a0d0e21e |
2065 | SvRMAGICAL_on(sv); |
93a17b20 |
2066 | mg->mg_virtual = 0; |
2067 | break; |
2068 | case 'l': |
79072805 |
2069 | mg->mg_virtual = &vtbl_dbline; |
2070 | break; |
463ee0b2 |
2071 | case 'P': |
2072 | mg->mg_virtual = &vtbl_pack; |
2073 | break; |
2074 | case 'p': |
a0d0e21e |
2075 | case 'q': |
463ee0b2 |
2076 | mg->mg_virtual = &vtbl_packelem; |
2077 | break; |
79072805 |
2078 | case 'S': |
2079 | mg->mg_virtual = &vtbl_sig; |
2080 | break; |
2081 | case 's': |
2082 | mg->mg_virtual = &vtbl_sigelem; |
2083 | break; |
463ee0b2 |
2084 | case 't': |
2085 | mg->mg_virtual = &vtbl_taint; |
748a9306 |
2086 | mg->mg_len = 1; |
463ee0b2 |
2087 | break; |
79072805 |
2088 | case 'U': |
2089 | mg->mg_virtual = &vtbl_uvar; |
2090 | break; |
2091 | case 'v': |
2092 | mg->mg_virtual = &vtbl_vec; |
2093 | break; |
2094 | case 'x': |
2095 | mg->mg_virtual = &vtbl_substr; |
2096 | break; |
2097 | case '*': |
2098 | mg->mg_virtual = &vtbl_glob; |
2099 | break; |
2100 | case '#': |
2101 | mg->mg_virtual = &vtbl_arylen; |
2102 | break; |
a0d0e21e |
2103 | case '.': |
2104 | mg->mg_virtual = &vtbl_pos; |
2105 | break; |
4633a7c4 |
2106 | case '~': /* Reserved for use by extensions not perl internals. */ |
2107 | /* Useful for attaching extension internal data to perl vars. */ |
2108 | /* Note that multiple extensions may clash if magical scalars */ |
2109 | /* etc holding private data from one are passed to another. */ |
2110 | SvRMAGICAL_on(sv); |
a0d0e21e |
2111 | break; |
79072805 |
2112 | default: |
463ee0b2 |
2113 | croak("Don't know how to handle magic of type '%c'", how); |
2114 | } |
8990e307 |
2115 | mg_magical(sv); |
2116 | if (SvGMAGICAL(sv)) |
2117 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); |
463ee0b2 |
2118 | } |
2119 | |
2120 | int |
2121 | sv_unmagic(sv, type) |
2122 | SV* sv; |
a0d0e21e |
2123 | int type; |
463ee0b2 |
2124 | { |
2125 | MAGIC* mg; |
2126 | MAGIC** mgp; |
91bba347 |
2127 | if (SvTYPE(sv) < SVt_PVMG || !SvMAGIC(sv)) |
463ee0b2 |
2128 | return 0; |
2129 | mgp = &SvMAGIC(sv); |
2130 | for (mg = *mgp; mg; mg = *mgp) { |
2131 | if (mg->mg_type == type) { |
2132 | MGVTBL* vtbl = mg->mg_virtual; |
2133 | *mgp = mg->mg_moremagic; |
2134 | if (vtbl && vtbl->svt_free) |
2135 | (*vtbl->svt_free)(sv, mg); |
2136 | if (mg->mg_ptr && mg->mg_type != 'g') |
2137 | Safefree(mg->mg_ptr); |
a0d0e21e |
2138 | if (mg->mg_flags & MGf_REFCOUNTED) |
2139 | SvREFCNT_dec(mg->mg_obj); |
463ee0b2 |
2140 | Safefree(mg); |
2141 | } |
2142 | else |
2143 | mgp = &mg->mg_moremagic; |
79072805 |
2144 | } |
91bba347 |
2145 | if (!SvMAGIC(sv)) { |
463ee0b2 |
2146 | SvMAGICAL_off(sv); |
8990e307 |
2147 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 |
2148 | } |
2149 | |
2150 | return 0; |
79072805 |
2151 | } |
2152 | |
2153 | void |
2154 | sv_insert(bigstr,offset,len,little,littlelen) |
2155 | SV *bigstr; |
2156 | STRLEN offset; |
2157 | STRLEN len; |
2158 | char *little; |
2159 | STRLEN littlelen; |
2160 | { |
2161 | register char *big; |
2162 | register char *mid; |
2163 | register char *midend; |
2164 | register char *bigend; |
2165 | register I32 i; |
2166 | |
8990e307 |
2167 | if (!bigstr) |
2168 | croak("Can't modify non-existent substring"); |
a0d0e21e |
2169 | SvPV_force(bigstr, na); |
79072805 |
2170 | |
2171 | i = littlelen - len; |
2172 | if (i > 0) { /* string might grow */ |
a0d0e21e |
2173 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 |
2174 | mid = big + offset + len; |
2175 | midend = bigend = big + SvCUR(bigstr); |
2176 | bigend += i; |
2177 | *bigend = '\0'; |
2178 | while (midend > mid) /* shove everything down */ |
2179 | *--bigend = *--midend; |
2180 | Move(little,big+offset,littlelen,char); |
2181 | SvCUR(bigstr) += i; |
2182 | SvSETMAGIC(bigstr); |
2183 | return; |
2184 | } |
2185 | else if (i == 0) { |
463ee0b2 |
2186 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 |
2187 | SvSETMAGIC(bigstr); |
2188 | return; |
2189 | } |
2190 | |
463ee0b2 |
2191 | big = SvPVX(bigstr); |
79072805 |
2192 | mid = big + offset; |
2193 | midend = mid + len; |
2194 | bigend = big + SvCUR(bigstr); |
2195 | |
2196 | if (midend > bigend) |
463ee0b2 |
2197 | croak("panic: sv_insert"); |
79072805 |
2198 | |
2199 | if (mid - big > bigend - midend) { /* faster to shorten from end */ |
2200 | if (littlelen) { |
2201 | Move(little, mid, littlelen,char); |
2202 | mid += littlelen; |
2203 | } |
2204 | i = bigend - midend; |
2205 | if (i > 0) { |
2206 | Move(midend, mid, i,char); |
2207 | mid += i; |
2208 | } |
2209 | *mid = '\0'; |
2210 | SvCUR_set(bigstr, mid - big); |
2211 | } |
2212 | /*SUPPRESS 560*/ |
2213 | else if (i = mid - big) { /* faster from front */ |
2214 | midend -= littlelen; |
2215 | mid = midend; |
2216 | sv_chop(bigstr,midend-i); |
2217 | big += i; |
2218 | while (i--) |
2219 | *--midend = *--big; |
2220 | if (littlelen) |
2221 | Move(little, mid, littlelen,char); |
2222 | } |
2223 | else if (littlelen) { |
2224 | midend -= littlelen; |
2225 | sv_chop(bigstr,midend); |
2226 | Move(little,midend,littlelen,char); |
2227 | } |
2228 | else { |
2229 | sv_chop(bigstr,midend); |
2230 | } |
2231 | SvSETMAGIC(bigstr); |
2232 | } |
2233 | |
2234 | /* make sv point to what nstr did */ |
2235 | |
2236 | void |
2237 | sv_replace(sv,nsv) |
2238 | register SV *sv; |
2239 | register SV *nsv; |
2240 | { |
2241 | U32 refcnt = SvREFCNT(sv); |
ed6116ce |
2242 | if (SvTHINKFIRST(sv)) { |
8990e307 |
2243 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
2244 | croak(no_modify); |
2245 | if (SvROK(sv)) |
2246 | sv_unref(sv); |
2247 | } |
79072805 |
2248 | if (SvREFCNT(nsv) != 1) |
2249 | warn("Reference miscount in sv_replace()"); |
93a17b20 |
2250 | if (SvMAGICAL(sv)) { |
a0d0e21e |
2251 | if (SvMAGICAL(nsv)) |
2252 | mg_free(nsv); |
2253 | else |
2254 | sv_upgrade(nsv, SVt_PVMG); |
93a17b20 |
2255 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e |
2256 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 |
2257 | SvMAGICAL_off(sv); |
2258 | SvMAGIC(sv) = 0; |
2259 | } |
79072805 |
2260 | SvREFCNT(sv) = 0; |
2261 | sv_clear(sv); |
2262 | StructCopy(nsv,sv,SV); |
2263 | SvREFCNT(sv) = refcnt; |
463ee0b2 |
2264 | del_SV(nsv); |
79072805 |
2265 | } |
2266 | |
2267 | void |
2268 | sv_clear(sv) |
2269 | register SV *sv; |
2270 | { |
2271 | assert(sv); |
2272 | assert(SvREFCNT(sv) == 0); |
2273 | |
ed6116ce |
2274 | if (SvOBJECT(sv)) { |
463ee0b2 |
2275 | dSP; |
463ee0b2 |
2276 | GV* destructor; |
2277 | |
a0d0e21e |
2278 | if (defstash) { /* Still have a symbol table? */ |
2279 | destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); |
2280 | |
2281 | ENTER; |
2282 | SAVEFREESV(SvSTASH(sv)); |
2283 | if (destructor && GvCV(destructor)) { |
2284 | SV ref; |
2285 | |
2286 | Zero(&ref, 1, SV); |
2287 | sv_upgrade(&ref, SVt_RV); |
2288 | SAVEI32(SvREFCNT(sv)); |
2289 | SvRV(&ref) = SvREFCNT_inc(sv); |
2290 | SvROK_on(&ref); |
2291 | |
2292 | EXTEND(SP, 2); |
2293 | PUSHMARK(SP); |
2294 | PUSHs(&ref); |
2295 | PUTBACK; |
4633a7c4 |
2296 | perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
748a9306 |
2297 | del_XRV(SvANY(&ref)); |
a0d0e21e |
2298 | } |
2299 | LEAVE; |
2300 | } |
4633a7c4 |
2301 | else |
2302 | SvREFCNT_dec(SvSTASH(sv)); |
a0d0e21e |
2303 | if (SvOBJECT(sv)) { |
2304 | SvOBJECT_off(sv); /* Curse the object. */ |
2305 | if (SvTYPE(sv) != SVt_PVIO) |
2306 | --sv_objcount; /* XXX Might want something more general */ |
2307 | } |
463ee0b2 |
2308 | } |
c07a80fd |
2309 | if (SvTYPE(sv) >= SVt_PVMG && SvMAGIC(sv)) |
a0d0e21e |
2310 | mg_free(sv); |
79072805 |
2311 | switch (SvTYPE(sv)) { |
8990e307 |
2312 | case SVt_PVIO: |
91bba347 |
2313 | io_close((IO*)sv); |
8990e307 |
2314 | Safefree(IoTOP_NAME(sv)); |
2315 | Safefree(IoFMT_NAME(sv)); |
2316 | Safefree(IoBOTTOM_NAME(sv)); |
a0d0e21e |
2317 | /* FALL THROUGH */ |
79072805 |
2318 | case SVt_PVBM: |
a0d0e21e |
2319 | goto freescalar; |
79072805 |
2320 | case SVt_PVCV: |
748a9306 |
2321 | case SVt_PVFM: |
85e6fe83 |
2322 | cv_undef((CV*)sv); |
a0d0e21e |
2323 | goto freescalar; |
79072805 |
2324 | case SVt_PVHV: |
85e6fe83 |
2325 | hv_undef((HV*)sv); |
a0d0e21e |
2326 | break; |
79072805 |
2327 | case SVt_PVAV: |
85e6fe83 |
2328 | av_undef((AV*)sv); |
a0d0e21e |
2329 | break; |
2330 | case SVt_PVGV: |
2331 | gp_free(sv); |
2332 | Safefree(GvNAME(sv)); |
2333 | /* FALL THROUGH */ |
79072805 |
2334 | case SVt_PVLV: |
79072805 |
2335 | case SVt_PVMG: |
79072805 |
2336 | case SVt_PVNV: |
2337 | case SVt_PVIV: |
a0d0e21e |
2338 | freescalar: |
2339 | (void)SvOOK_off(sv); |
79072805 |
2340 | /* FALL THROUGH */ |
2341 | case SVt_PV: |
a0d0e21e |
2342 | case SVt_RV: |
8990e307 |
2343 | if (SvROK(sv)) |
2344 | SvREFCNT_dec(SvRV(sv)); |
2345 | else if (SvPVX(sv)) |
463ee0b2 |
2346 | Safefree(SvPVX(sv)); |
79072805 |
2347 | break; |
a0d0e21e |
2348 | /* |
79072805 |
2349 | case SVt_NV: |
79072805 |
2350 | case SVt_IV: |
79072805 |
2351 | case SVt_NULL: |
2352 | break; |
a0d0e21e |
2353 | */ |
79072805 |
2354 | } |
2355 | |
2356 | switch (SvTYPE(sv)) { |
2357 | case SVt_NULL: |
2358 | break; |
79072805 |
2359 | case SVt_IV: |
2360 | del_XIV(SvANY(sv)); |
2361 | break; |
2362 | case SVt_NV: |
2363 | del_XNV(SvANY(sv)); |
2364 | break; |
ed6116ce |
2365 | case SVt_RV: |
2366 | del_XRV(SvANY(sv)); |
2367 | break; |
79072805 |
2368 | case SVt_PV: |
2369 | del_XPV(SvANY(sv)); |
2370 | break; |
2371 | case SVt_PVIV: |
2372 | del_XPVIV(SvANY(sv)); |
2373 | break; |
2374 | case SVt_PVNV: |
2375 | del_XPVNV(SvANY(sv)); |
2376 | break; |
2377 | case SVt_PVMG: |
2378 | del_XPVMG(SvANY(sv)); |
2379 | break; |
2380 | case SVt_PVLV: |
2381 | del_XPVLV(SvANY(sv)); |
2382 | break; |
2383 | case SVt_PVAV: |
2384 | del_XPVAV(SvANY(sv)); |
2385 | break; |
2386 | case SVt_PVHV: |
2387 | del_XPVHV(SvANY(sv)); |
2388 | break; |
2389 | case SVt_PVCV: |
2390 | del_XPVCV(SvANY(sv)); |
2391 | break; |
2392 | case SVt_PVGV: |
2393 | del_XPVGV(SvANY(sv)); |
2394 | break; |
2395 | case SVt_PVBM: |
2396 | del_XPVBM(SvANY(sv)); |
2397 | break; |
2398 | case SVt_PVFM: |
2399 | del_XPVFM(SvANY(sv)); |
2400 | break; |
8990e307 |
2401 | case SVt_PVIO: |
2402 | del_XPVIO(SvANY(sv)); |
2403 | break; |
79072805 |
2404 | } |
a0d0e21e |
2405 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 |
2406 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 |
2407 | } |
2408 | |
2409 | SV * |
8990e307 |
2410 | sv_newref(sv) |
79072805 |
2411 | SV* sv; |
2412 | { |
463ee0b2 |
2413 | if (sv) |
2414 | SvREFCNT(sv)++; |
79072805 |
2415 | return sv; |
2416 | } |
2417 | |
2418 | void |
2419 | sv_free(sv) |
2420 | SV *sv; |
2421 | { |
2422 | if (!sv) |
2423 | return; |
a0d0e21e |
2424 | if (SvREADONLY(sv)) { |
2425 | if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no) |
2426 | return; |
79072805 |
2427 | } |
a0d0e21e |
2428 | if (SvREFCNT(sv) == 0) { |
2429 | if (SvFLAGS(sv) & SVf_BREAK) |
2430 | return; |
79072805 |
2431 | warn("Attempt to free unreferenced scalar"); |
2432 | return; |
2433 | } |
8990e307 |
2434 | if (--SvREFCNT(sv) > 0) |
2435 | return; |
463ee0b2 |
2436 | #ifdef DEBUGGING |
2437 | if (SvTEMP(sv)) { |
2438 | warn("Attempt to free temp prematurely"); |
79072805 |
2439 | return; |
79072805 |
2440 | } |
463ee0b2 |
2441 | #endif |
79072805 |
2442 | sv_clear(sv); |
79072805 |
2443 | del_SV(sv); |
2444 | } |
2445 | |
2446 | STRLEN |
2447 | sv_len(sv) |
2448 | register SV *sv; |
2449 | { |
748a9306 |
2450 | char *junk; |
463ee0b2 |
2451 | STRLEN len; |
79072805 |
2452 | |
2453 | if (!sv) |
2454 | return 0; |
2455 | |
8990e307 |
2456 | if (SvGMAGICAL(sv)) |
2457 | len = mg_len(sv); |
2458 | else |
748a9306 |
2459 | junk = SvPV(sv, len); |
463ee0b2 |
2460 | return len; |
79072805 |
2461 | } |
2462 | |
2463 | I32 |
2464 | sv_eq(str1,str2) |
2465 | register SV *str1; |
2466 | register SV *str2; |
2467 | { |
2468 | char *pv1; |
463ee0b2 |
2469 | STRLEN cur1; |
79072805 |
2470 | char *pv2; |
463ee0b2 |
2471 | STRLEN cur2; |
79072805 |
2472 | |
2473 | if (!str1) { |
2474 | pv1 = ""; |
2475 | cur1 = 0; |
2476 | } |
463ee0b2 |
2477 | else |
2478 | pv1 = SvPV(str1, cur1); |
79072805 |
2479 | |
2480 | if (!str2) |
2481 | return !cur1; |
463ee0b2 |
2482 | else |
2483 | pv2 = SvPV(str2, cur2); |
79072805 |
2484 | |
2485 | if (cur1 != cur2) |
2486 | return 0; |
2487 | |
2488 | return !bcmp(pv1, pv2, cur1); |
2489 | } |
2490 | |
2491 | I32 |
2492 | sv_cmp(str1,str2) |
2493 | register SV *str1; |
2494 | register SV *str2; |
2495 | { |
2496 | I32 retval; |
2497 | char *pv1; |
463ee0b2 |
2498 | STRLEN cur1; |
79072805 |
2499 | char *pv2; |
463ee0b2 |
2500 | STRLEN cur2; |
79072805 |
2501 | |
2502 | if (!str1) { |
2503 | pv1 = ""; |
2504 | cur1 = 0; |
2505 | } |
463ee0b2 |
2506 | else |
2507 | pv1 = SvPV(str1, cur1); |
79072805 |
2508 | |
2509 | if (!str2) { |
2510 | pv2 = ""; |
2511 | cur2 = 0; |
2512 | } |
463ee0b2 |
2513 | else |
2514 | pv2 = SvPV(str2, cur2); |
79072805 |
2515 | |
2516 | if (!cur1) |
2517 | return cur2 ? -1 : 0; |
2518 | if (!cur2) |
2519 | return 1; |
2520 | |
2521 | if (cur1 < cur2) { |
2522 | /*SUPPRESS 560*/ |
85e6fe83 |
2523 | if (retval = memcmp((void*)pv1, (void*)pv2, cur1)) |
79072805 |
2524 | return retval < 0 ? -1 : 1; |
2525 | else |
2526 | return -1; |
2527 | } |
2528 | /*SUPPRESS 560*/ |
85e6fe83 |
2529 | else if (retval = memcmp((void*)pv1, (void*)pv2, cur2)) |
79072805 |
2530 | return retval < 0 ? -1 : 1; |
2531 | else if (cur1 == cur2) |
2532 | return 0; |
2533 | else |
2534 | return 1; |
2535 | } |
2536 | |
2537 | char * |
2538 | sv_gets(sv,fp,append) |
2539 | register SV *sv; |
2540 | register FILE *fp; |
2541 | I32 append; |
2542 | { |
c07a80fd |
2543 | char *rsptr; |
2544 | STRLEN rslen; |
2545 | register STDCHAR rslast; |
2546 | register STDCHAR *bp; |
2547 | register I32 cnt; |
2548 | I32 i; |
2549 | |
2550 | #ifdef FAST_SV_GETS |
2551 | /* |
2552 | * We're going to steal some values from the stdio struct |
2553 | * and put EVERYTHING in the innermost loop into registers. |
2554 | */ |
2555 | register STDCHAR *ptr; |
79072805 |
2556 | STRLEN bpx; |
2557 | I32 shortbuffered; |
748a9306 |
2558 | #endif |
79072805 |
2559 | |
ed6116ce |
2560 | if (SvTHINKFIRST(sv)) { |
8990e307 |
2561 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
2562 | croak(no_modify); |
2563 | if (SvROK(sv)) |
2564 | sv_unref(sv); |
2565 | } |
79072805 |
2566 | if (!SvUPGRADE(sv, SVt_PV)) |
a0d0e21e |
2567 | return 0; |
c07a80fd |
2568 | |
2569 | if (RsSNARF(rs)) { |
2570 | rsptr = NULL; |
2571 | rslen = 0; |
2572 | } |
2573 | else if (RsPARA(rs)) { |
2574 | rsptr = "\n\n"; |
2575 | rslen = 2; |
2576 | } |
2577 | else |
2578 | rsptr = SvPV(rs, rslen); |
2579 | rslast = rslen ? rsptr[rslen - 1] : '\0'; |
2580 | |
2581 | if (RsPARA(rs)) { /* have to do this both before and after */ |
79072805 |
2582 | do { /* to make sure file boundaries work right */ |
a0d0e21e |
2583 | if (feof(fp)) |
2584 | return 0; |
79072805 |
2585 | i = getc(fp); |
2586 | if (i != '\n') { |
a0d0e21e |
2587 | if (i == -1) |
2588 | return 0; |
79072805 |
2589 | ungetc(i,fp); |
2590 | break; |
2591 | } |
2592 | } while (i != EOF); |
2593 | } |
c07a80fd |
2594 | |
2595 | #ifdef FAST_SV_GETS |
2596 | |
c2960299 |
2597 | /* Here is some breathtakingly efficient cheating */ |
c07a80fd |
2598 | |
16d20bd9 |
2599 | cnt = FILE_cnt(fp); /* get count into register */ |
a0d0e21e |
2600 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 |
2601 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
2602 | if (cnt > 80 && SvLEN(sv) > append) { |
2603 | shortbuffered = cnt - SvLEN(sv) + append + 1; |
2604 | cnt -= shortbuffered; |
2605 | } |
2606 | else { |
2607 | shortbuffered = 0; |
2608 | SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */ |
2609 | } |
2610 | } |
2611 | else |
2612 | shortbuffered = 0; |
c07a80fd |
2613 | bp = (STDCHAR*)SvPVX(sv) + append; /* move these two too to registers */ |
16d20bd9 |
2614 | ptr = FILE_ptr(fp); |
79072805 |
2615 | for (;;) { |
2616 | screamer: |
93a17b20 |
2617 | if (cnt > 0) { |
c07a80fd |
2618 | if (rslen) { |
2619 | while (--cnt >= 0) { /* this | eat */ |
2620 | if ((*bp++ = *ptr++) == rslast) /* really | dust */ |
2621 | goto thats_all_folks; /* screams | sed :-) */ |
2622 | } |
2623 | } |
2624 | else { |
2625 | memcpy((char*)bp, (char*)ptr, cnt); /* this | eat */ |
2626 | bp += cnt; /* screams | dust */ |
2627 | ptr += cnt; /* louder | sed :-) */ |
a5f75d66 |
2628 | cnt = 0; |
93a17b20 |
2629 | } |
79072805 |
2630 | } |
2631 | |
748a9306 |
2632 | if (shortbuffered) { /* oh well, must extend */ |
79072805 |
2633 | cnt = shortbuffered; |
2634 | shortbuffered = 0; |
c07a80fd |
2635 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 |
2636 | SvCUR_set(sv, bpx); |
2637 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); |
c07a80fd |
2638 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
79072805 |
2639 | continue; |
2640 | } |
2641 | |
16d20bd9 |
2642 | FILE_cnt(fp) = cnt; /* deregisterize cnt and ptr */ |
2643 | FILE_ptr(fp) = ptr; |
79072805 |
2644 | i = _filbuf(fp); /* get more characters */ |
16d20bd9 |
2645 | cnt = FILE_cnt(fp); |
2646 | ptr = FILE_ptr(fp); /* reregisterize cnt and ptr */ |
79072805 |
2647 | |
748a9306 |
2648 | if (i == EOF) /* all done for ever? */ |
2649 | goto thats_really_all_folks; |
2650 | |
c07a80fd |
2651 | bpx = bp - (STDCHAR*)SvPVX(sv); /* box up before relocation */ |
79072805 |
2652 | SvCUR_set(sv, bpx); |
2653 | SvGROW(sv, bpx + cnt + 2); |
c07a80fd |
2654 | bp = (STDCHAR*)SvPVX(sv) + bpx; /* unbox after relocation */ |
2655 | |
2656 | *bp++ = i; /* store character from _filbuf */ |
79072805 |
2657 | |
c07a80fd |
2658 | if (rslen && (STDCHAR)i == rslast) /* all done for now? */ |
79072805 |
2659 | goto thats_all_folks; |
79072805 |
2660 | } |
2661 | |
2662 | thats_all_folks: |
c07a80fd |
2663 | if ((rslen > 1 && (bp - (STDCHAR*)SvPVX(sv) < rslen)) || |
2664 | bcmp((char*)bp - rslen, rsptr, rslen)) |
748a9306 |
2665 | goto screamer; /* go back to the fray */ |
79072805 |
2666 | thats_really_all_folks: |
2667 | if (shortbuffered) |
2668 | cnt += shortbuffered; |
16d20bd9 |
2669 | FILE_cnt(fp) = cnt; /* put these back or we're in trouble */ |
2670 | FILE_ptr(fp) = ptr; |
79072805 |
2671 | *bp = '\0'; |
c07a80fd |
2672 | SvCUR_set(sv, bp - (STDCHAR*)SvPVX(sv)); /* set length */ |
2673 | |
2674 | #else /* SV_FAST_GETS */ |
79072805 |
2675 | |
c2960299 |
2676 | /*The big, slow, and stupid way */ |
c07a80fd |
2677 | |
79072805 |
2678 | { |
c07a80fd |
2679 | STDCHAR buf[8192]; |
79072805 |
2680 | |
2681 | screamer: |
c07a80fd |
2682 | if (rslen) { |
2683 | register STDCHAR *bpe = buf + sizeof(buf); |
2684 | bp = buf; |
2685 | while ((i = getc(fp)) != EOF && (*bp++ = i) != rslast && bp < bpe) |
2686 | ; /* keep reading */ |
2687 | cnt = bp - buf; |
2688 | } |
2689 | else { |
2690 | cnt = fread((char*)buf, 1, sizeof(buf), fp); |
91bba347 |
2691 | i = cnt ? (U8)buf[cnt - 1] : EOF; |
c07a80fd |
2692 | } |
79072805 |
2693 | |
2694 | if (append) |
c07a80fd |
2695 | sv_catpvn(sv, buf, cnt); |
79072805 |
2696 | else |
c07a80fd |
2697 | sv_setpvn(sv, buf, cnt); |
2698 | |
2699 | if (i != EOF && /* joy */ |
2700 | (!rslen || |
2701 | SvCUR(sv) < rslen || |
2702 | bcmp(SvPVX(sv) + SvCUR(sv) - rslen, rsptr, rslen))) |
79072805 |
2703 | { |
2704 | append = -1; |
2705 | goto screamer; |
2706 | } |
2707 | } |
2708 | |
c07a80fd |
2709 | #endif /* SV_FAST_GETS */ |
79072805 |
2710 | |
c07a80fd |
2711 | if (RsPARA(rs)) { /* have to do this both before and after */ |
2712 | while (i != EOF) { /* to make sure file boundaries work right */ |
79072805 |
2713 | i = getc(fp); |
2714 | if (i != '\n') { |
2715 | ungetc(i,fp); |
2716 | break; |
2717 | } |
2718 | } |
2719 | } |
c07a80fd |
2720 | |
2721 | return (SvCUR(sv) - append) ? SvPVX(sv) : Nullch; |
79072805 |
2722 | } |
2723 | |
2724 | void |
2725 | sv_inc(sv) |
2726 | register SV *sv; |
2727 | { |
2728 | register char *d; |
463ee0b2 |
2729 | int flags; |
79072805 |
2730 | |
2731 | if (!sv) |
2732 | return; |
ed6116ce |
2733 | if (SvTHINKFIRST(sv)) { |
8990e307 |
2734 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
2735 | croak(no_modify); |
a0d0e21e |
2736 | if (SvROK(sv)) { |
2737 | #ifdef OVERLOAD |
2738 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return; |
2739 | #endif /* OVERLOAD */ |
2740 | sv_unref(sv); |
2741 | } |
ed6116ce |
2742 | } |
8990e307 |
2743 | if (SvGMAGICAL(sv)) |
79072805 |
2744 | mg_get(sv); |
8990e307 |
2745 | flags = SvFLAGS(sv); |
2746 | if (flags & SVp_IOK) { |
a0d0e21e |
2747 | (void)SvIOK_only(sv); |
a5f75d66 |
2748 | ++SvIVX(sv); |
79072805 |
2749 | return; |
2750 | } |
8990e307 |
2751 | if (flags & SVp_NOK) { |
463ee0b2 |
2752 | SvNVX(sv) += 1.0; |
a0d0e21e |
2753 | (void)SvNOK_only(sv); |
79072805 |
2754 | return; |
2755 | } |
8990e307 |
2756 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
4633a7c4 |
2757 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
2758 | sv_upgrade(sv, SVt_NV); |
463ee0b2 |
2759 | SvNVX(sv) = 1.0; |
a0d0e21e |
2760 | (void)SvNOK_only(sv); |
79072805 |
2761 | return; |
2762 | } |
463ee0b2 |
2763 | d = SvPVX(sv); |
79072805 |
2764 | while (isALPHA(*d)) d++; |
2765 | while (isDIGIT(*d)) d++; |
2766 | if (*d) { |
463ee0b2 |
2767 | sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */ |
79072805 |
2768 | return; |
2769 | } |
2770 | d--; |
463ee0b2 |
2771 | while (d >= SvPVX(sv)) { |
79072805 |
2772 | if (isDIGIT(*d)) { |
2773 | if (++*d <= '9') |
2774 | return; |
2775 | *(d--) = '0'; |
2776 | } |
2777 | else { |
2778 | ++*d; |
2779 | if (isALPHA(*d)) |
2780 | return; |
2781 | *(d--) -= 'z' - 'a' + 1; |
2782 | } |
2783 | } |
2784 | /* oh,oh, the number grew */ |
2785 | SvGROW(sv, SvCUR(sv) + 2); |
2786 | SvCUR(sv)++; |
463ee0b2 |
2787 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 |
2788 | *d = d[-1]; |
2789 | if (isDIGIT(d[1])) |
2790 | *d = '1'; |
2791 | else |
2792 | *d = d[1]; |
2793 | } |
2794 | |
2795 | void |
2796 | sv_dec(sv) |
2797 | register SV *sv; |
2798 | { |
463ee0b2 |
2799 | int flags; |
2800 | |
79072805 |
2801 | if (!sv) |
2802 | return; |
ed6116ce |
2803 | if (SvTHINKFIRST(sv)) { |
8990e307 |
2804 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce |
2805 | croak(no_modify); |
a0d0e21e |
2806 | if (SvROK(sv)) { |
2807 | #ifdef OVERLOAD |
2808 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return; |
2809 | #endif /* OVERLOAD */ |
2810 | sv_unref(sv); |
2811 | } |
ed6116ce |
2812 | } |
8990e307 |
2813 | if (SvGMAGICAL(sv)) |
79072805 |
2814 | mg_get(sv); |
8990e307 |
2815 | flags = SvFLAGS(sv); |
2816 | if (flags & SVp_IOK) { |
a0d0e21e |
2817 | (void)SvIOK_only(sv); |
a5f75d66 |
2818 | --SvIVX(sv); |
79072805 |
2819 | return; |
2820 | } |
8990e307 |
2821 | if (flags & SVp_NOK) { |
463ee0b2 |
2822 | SvNVX(sv) -= 1.0; |
a0d0e21e |
2823 | (void)SvNOK_only(sv); |
79072805 |
2824 | return; |
2825 | } |
8990e307 |
2826 | if (!(flags & SVp_POK)) { |
4633a7c4 |
2827 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
2828 | sv_upgrade(sv, SVt_NV); |
463ee0b2 |
2829 | SvNVX(sv) = -1.0; |
a0d0e21e |
2830 | (void)SvNOK_only(sv); |
79072805 |
2831 | return; |
2832 | } |
463ee0b2 |
2833 | sv_setnv(sv,atof(SvPVX(sv)) - 1.0); |
79072805 |
2834 | } |
2835 | |
2836 | /* Make a string that will exist for the duration of the expression |
2837 | * evaluation. Actually, it may have to last longer than that, but |
2838 | * hopefully we won't free it until it has been assigned to a |
2839 | * permanent location. */ |
2840 | |
8990e307 |
2841 | static void |
2842 | sv_mortalgrow() |
2843 | { |
2844 | tmps_max += 128; |
2845 | Renew(tmps_stack, tmps_max, SV*); |
2846 | } |
2847 | |
79072805 |
2848 | SV * |
2849 | sv_mortalcopy(oldstr) |
2850 | SV *oldstr; |
2851 | { |
463ee0b2 |
2852 | register SV *sv; |
79072805 |
2853 | |
463ee0b2 |
2854 | new_SV(); |
8990e307 |
2855 | SvANY(sv) = 0; |
2856 | SvREFCNT(sv) = 1; |
2857 | SvFLAGS(sv) = 0; |
79072805 |
2858 | sv_setsv(sv,oldstr); |
8990e307 |
2859 | if (++tmps_ix >= tmps_max) |
2860 | sv_mortalgrow(); |
2861 | tmps_stack[tmps_ix] = sv; |
2862 | SvTEMP_on(sv); |
2863 | return sv; |
2864 | } |
2865 | |
2866 | SV * |
2867 | sv_newmortal() |
2868 | { |
2869 | register SV *sv; |
2870 | |
2871 | new_SV(); |
2872 | SvANY(sv) = 0; |
2873 | SvREFCNT(sv) = 1; |
2874 | SvFLAGS(sv) = SVs_TEMP; |
2875 | if (++tmps_ix >= tmps_max) |
2876 | sv_mortalgrow(); |
79072805 |
2877 | tmps_stack[tmps_ix] = sv; |
79072805 |
2878 | return sv; |
2879 | } |
2880 | |
2881 | /* same thing without the copying */ |
2882 | |
2883 | SV * |
2884 | sv_2mortal(sv) |
2885 | register SV *sv; |
2886 | { |
2887 | if (!sv) |
2888 | return sv; |
a0d0e21e |
2889 | if (SvREADONLY(sv) && curcop != &compiling) |
2890 | croak(no_modify); |
8990e307 |
2891 | if (++tmps_ix >= tmps_max) |
2892 | sv_mortalgrow(); |
79072805 |
2893 | tmps_stack[tmps_ix] = sv; |
8990e307 |
2894 | SvTEMP_on(sv); |
79072805 |
2895 | return sv; |
2896 | } |
2897 | |
2898 | SV * |
2899 | newSVpv(s,len) |
2900 | char *s; |
2901 | STRLEN len; |
2902 | { |
463ee0b2 |
2903 | register SV *sv; |
79072805 |
2904 | |
463ee0b2 |
2905 | new_SV(); |
8990e307 |
2906 | SvANY(sv) = 0; |
2907 | SvREFCNT(sv) = 1; |
2908 | SvFLAGS(sv) = 0; |
79072805 |
2909 | if (!len) |
2910 | len = strlen(s); |
2911 | sv_setpvn(sv,s,len); |
2912 | return sv; |
2913 | } |
2914 | |
2915 | SV * |
2916 | newSVnv(n) |
2917 | double n; |
2918 | { |
463ee0b2 |
2919 | register SV *sv; |
79072805 |
2920 | |
463ee0b2 |
2921 | new_SV(); |
8990e307 |
2922 | SvANY(sv) = 0; |
2923 | SvREFCNT(sv) = 1; |
2924 | SvFLAGS(sv) = 0; |
79072805 |
2925 | sv_setnv(sv,n); |
2926 | return sv; |
2927 | } |
2928 | |
2929 | SV * |
2930 | newSViv(i) |
a0d0e21e |
2931 | IV i; |
79072805 |
2932 | { |
463ee0b2 |
2933 | register SV *sv; |
79072805 |
2934 | |
463ee0b2 |
2935 | new_SV(); |
8990e307 |
2936 | SvANY(sv) = 0; |
2937 | SvREFCNT(sv) = 1; |
2938 | SvFLAGS(sv) = 0; |
79072805 |
2939 | sv_setiv(sv,i); |
2940 | return sv; |
2941 | } |
2942 | |
2304df62 |
2943 | SV * |
2944 | newRV(ref) |
2945 | SV *ref; |
2946 | { |
2947 | register SV *sv; |
2948 | |
2949 | new_SV(); |
2950 | SvANY(sv) = 0; |
2951 | SvREFCNT(sv) = 1; |
2952 | SvFLAGS(sv) = 0; |
2953 | sv_upgrade(sv, SVt_RV); |
a0d0e21e |
2954 | SvTEMP_off(ref); |
2304df62 |
2955 | SvRV(sv) = SvREFCNT_inc(ref); |
2956 | SvROK_on(sv); |
2304df62 |
2957 | return sv; |
2958 | } |
2959 | |
79072805 |
2960 | /* make an exact duplicate of old */ |
2961 | |
2962 | SV * |
2963 | newSVsv(old) |
2964 | register SV *old; |
2965 | { |
463ee0b2 |
2966 | register SV *sv; |
79072805 |
2967 | |
2968 | if (!old) |
2969 | return Nullsv; |
8990e307 |
2970 | if (SvTYPE(old) == SVTYPEMASK) { |
79072805 |
2971 | warn("semi-panic: attempt to dup freed string"); |
2972 | return Nullsv; |
2973 | } |
463ee0b2 |
2974 | new_SV(); |
8990e307 |
2975 | SvANY(sv) = 0; |
2976 | SvREFCNT(sv) = 1; |
2977 | SvFLAGS(sv) = 0; |
79072805 |
2978 | if (SvTEMP(old)) { |
2979 | SvTEMP_off(old); |
463ee0b2 |
2980 | sv_setsv(sv,old); |
79072805 |
2981 | SvTEMP_on(old); |
2982 | } |
2983 | else |
463ee0b2 |
2984 | sv_setsv(sv,old); |
2985 | return sv; |
79072805 |
2986 | } |
2987 | |
2988 | void |
2989 | sv_reset(s,stash) |
2990 | register char *s; |
2991 | HV *stash; |
2992 | { |
2993 | register HE *entry; |
2994 | register GV *gv; |
2995 | register SV *sv; |
2996 | register I32 i; |
2997 | register PMOP *pm; |
2998 | register I32 max; |
463ee0b2 |
2999 | char todo[256]; |
79072805 |
3000 | |
3001 | if (!*s) { /* reset ?? searches */ |
3002 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { |
3003 | pm->op_pmflags &= ~PMf_USED; |
3004 | } |
3005 | return; |
3006 | } |
3007 | |
3008 | /* reset variables */ |
3009 | |
3010 | if (!HvARRAY(stash)) |
3011 | return; |
463ee0b2 |
3012 | |
3013 | Zero(todo, 256, char); |
79072805 |
3014 | while (*s) { |
3015 | i = *s; |
3016 | if (s[1] == '-') { |
3017 | s += 2; |
3018 | } |
3019 | max = *s++; |
3020 | for ( ; i <= max; i++) { |
463ee0b2 |
3021 | todo[i] = 1; |
3022 | } |
a0d0e21e |
3023 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 |
3024 | for (entry = HvARRAY(stash)[i]; |
3025 | entry; |
3026 | entry = entry->hent_next) { |
463ee0b2 |
3027 | if (!todo[(U8)*entry->hent_key]) |
3028 | continue; |
79072805 |
3029 | gv = (GV*)entry->hent_val; |
3030 | sv = GvSV(gv); |
a0d0e21e |
3031 | (void)SvOK_off(sv); |
79072805 |
3032 | if (SvTYPE(sv) >= SVt_PV) { |
3033 | SvCUR_set(sv, 0); |
463ee0b2 |
3034 | SvTAINT(sv); |
3035 | if (SvPVX(sv) != Nullch) |
3036 | *SvPVX(sv) = '\0'; |
79072805 |
3037 | } |
3038 | if (GvAV(gv)) { |
3039 | av_clear(GvAV(gv)); |
3040 | } |
3041 | if (GvHV(gv)) { |
a0d0e21e |
3042 | if (HvNAME(GvHV(gv))) |
3043 | continue; |
463ee0b2 |
3044 | hv_clear(GvHV(gv)); |
a0d0e21e |
3045 | #ifndef VMS /* VMS has no environ array */ |
79072805 |
3046 | if (gv == envgv) |
3047 | environ[0] = Nullch; |
a0d0e21e |
3048 | #endif |
79072805 |
3049 | } |
3050 | } |
3051 | } |
3052 | } |
3053 | } |
3054 | |
79072805 |
3055 | CV * |
3056 | sv_2cv(sv, st, gvp, lref) |
3057 | SV *sv; |
3058 | HV **st; |
3059 | GV **gvp; |
3060 | I32 lref; |
3061 | { |
3062 | GV *gv; |
3063 | CV *cv; |
3064 | |
3065 | if (!sv) |
93a17b20 |
3066 | return *gvp = Nullgv, Nullcv; |
79072805 |
3067 | switch (SvTYPE(sv)) { |
79072805 |
3068 | case SVt_PVCV: |
3069 | *st = CvSTASH(sv); |
3070 | *gvp = Nullgv; |
3071 | return (CV*)sv; |
3072 | case SVt_PVHV: |
3073 | case SVt_PVAV: |
3074 | *gvp = Nullgv; |
3075 | return Nullcv; |
8990e307 |
3076 | case SVt_PVGV: |
3077 | gv = (GV*)sv; |
a0d0e21e |
3078 | *gvp = gv; |
8990e307 |
3079 | *st = GvESTASH(gv); |
3080 | goto fix_gv; |
3081 | |
79072805 |
3082 | default: |
a0d0e21e |
3083 | if (SvGMAGICAL(sv)) |
3084 | mg_get(sv); |
3085 | if (SvROK(sv)) { |
3086 | cv = (CV*)SvRV(sv); |
3087 | if (SvTYPE(cv) != SVt_PVCV) |
3088 | croak("Not a subroutine reference"); |
3089 | *gvp = Nullgv; |
3090 | *st = CvSTASH(cv); |
3091 | return cv; |
3092 | } |
79072805 |
3093 | if (isGV(sv)) |
3094 | gv = (GV*)sv; |
3095 | else |
85e6fe83 |
3096 | gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV); |
79072805 |
3097 | *gvp = gv; |
3098 | if (!gv) |
3099 | return Nullcv; |
3100 | *st = GvESTASH(gv); |
8990e307 |
3101 | fix_gv: |
3102 | if (lref && !GvCV(gv)) { |
4633a7c4 |
3103 | SV *tmpsv; |
748a9306 |
3104 | ENTER; |
4633a7c4 |
3105 | tmpsv = NEWSV(704,0); |
3106 | gv_efullname(tmpsv, gv); |
748a9306 |
3107 | newSUB(start_subparse(), |
4633a7c4 |
3108 | newSVOP(OP_CONST, 0, tmpsv), |
3109 | Nullop, |
8990e307 |
3110 | Nullop); |
748a9306 |
3111 | LEAVE; |
4633a7c4 |
3112 | if (!GvCV(gv)) |
3113 | croak("Unable to create sub named \"%s\"", SvPV(sv,na)); |
8990e307 |
3114 | } |
79072805 |
3115 | return GvCV(gv); |
3116 | } |
3117 | } |
3118 | |
3119 | #ifndef SvTRUE |
3120 | I32 |
3121 | SvTRUE(sv) |
3122 | register SV *sv; |
3123 | { |
8990e307 |
3124 | if (!sv) |
3125 | return 0; |
3126 | if (SvGMAGICAL(sv)) |
79072805 |
3127 | mg_get(sv); |
3128 | if (SvPOK(sv)) { |
3129 | register XPV* Xpv; |
3130 | if ((Xpv = (XPV*)SvANY(sv)) && |
3131 | (*Xpv->xpv_pv > '0' || |
3132 | Xpv->xpv_cur > 1 || |
3133 | (Xpv->xpv_cur && *Xpv->xpv_pv != '0'))) |
3134 | return 1; |
3135 | else |
3136 | return 0; |
3137 | } |
3138 | else { |
3139 | if (SvIOK(sv)) |
463ee0b2 |
3140 | return SvIVX(sv) != 0; |
79072805 |
3141 | else { |
3142 | if (SvNOK(sv)) |
463ee0b2 |
3143 | return SvNVX(sv) != 0.0; |
79072805 |
3144 | else |
463ee0b2 |
3145 | return sv_2bool(sv); |
79072805 |
3146 | } |
3147 | } |
3148 | } |
3149 | #endif /* SvTRUE */ |
3150 | |
85e6fe83 |
3151 | #ifndef SvIV |
a0d0e21e |
3152 | IV SvIV(Sv) |
85e6fe83 |
3153 | register SV *Sv; |
3154 | { |
3155 | if (SvIOK(Sv)) |
3156 | return SvIVX(Sv); |
3157 | return sv_2iv(Sv); |
3158 | } |
3159 | #endif /* SvIV */ |
3160 | |
3161 | |
463ee0b2 |
3162 | #ifndef SvNV |
3163 | double SvNV(Sv) |
79072805 |
3164 | register SV *Sv; |
3165 | { |
79072805 |
3166 | if (SvNOK(Sv)) |
463ee0b2 |
3167 | return SvNVX(Sv); |
79072805 |
3168 | if (SvIOK(Sv)) |
463ee0b2 |
3169 | return (double)SvIVX(Sv); |
79072805 |
3170 | return sv_2nv(Sv); |
3171 | } |
463ee0b2 |
3172 | #endif /* SvNV */ |
79072805 |
3173 | |
463ee0b2 |
3174 | #ifdef CRIPPLED_CC |
79072805 |
3175 | char * |
463ee0b2 |
3176 | sv_pvn(sv, lp) |
79072805 |
3177 | SV *sv; |
463ee0b2 |
3178 | STRLEN *lp; |
79072805 |
3179 | { |
85e6fe83 |
3180 | if (SvPOK(sv)) { |
3181 | *lp = SvCUR(sv); |
a0d0e21e |
3182 | return SvPVX(sv); |
85e6fe83 |
3183 | } |
463ee0b2 |
3184 | return sv_2pv(sv, lp); |
79072805 |
3185 | } |
3186 | #endif |
3187 | |
a0d0e21e |
3188 | char * |
3189 | sv_pvn_force(sv, lp) |
3190 | SV *sv; |
3191 | STRLEN *lp; |
3192 | { |
3193 | char *s; |
3194 | |
3195 | if (SvREADONLY(sv) && curcop != &compiling) |
3196 | croak(no_modify); |
3197 | |
3198 | if (SvPOK(sv)) { |
3199 | *lp = SvCUR(sv); |
3200 | } |
3201 | else { |
748a9306 |
3202 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
4633a7c4 |
3203 | if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) { |
a0d0e21e |
3204 | sv_unglob(sv); |
4633a7c4 |
3205 | s = SvPVX(sv); |
3206 | *lp = SvCUR(sv); |
3207 | } |
a0d0e21e |
3208 | else |
3209 | croak("Can't coerce %s to string in %s", sv_reftype(sv,0), |
3210 | op_name[op->op_type]); |
3211 | } |
4633a7c4 |
3212 | else |
3213 | s = sv_2pv(sv, lp); |
a0d0e21e |
3214 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
3215 | STRLEN len = *lp; |
3216 | |
3217 | if (SvROK(sv)) |
3218 | sv_unref(sv); |
3219 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ |
3220 | SvGROW(sv, len + 1); |
3221 | Move(s,SvPVX(sv),len,char); |
3222 | SvCUR_set(sv, len); |
3223 | *SvEND(sv) = '\0'; |
3224 | } |
3225 | if (!SvPOK(sv)) { |
3226 | SvPOK_on(sv); /* validate pointer */ |
3227 | SvTAINT(sv); |
3228 | DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n", |
3229 | (unsigned long)sv,SvPVX(sv))); |
3230 | } |
3231 | } |
3232 | return SvPVX(sv); |
3233 | } |
3234 | |
3235 | char * |
3236 | sv_reftype(sv, ob) |
3237 | SV* sv; |
3238 | int ob; |
3239 | { |
3240 | if (ob && SvOBJECT(sv)) |
3241 | return HvNAME(SvSTASH(sv)); |
3242 | else { |
3243 | switch (SvTYPE(sv)) { |
3244 | case SVt_NULL: |
3245 | case SVt_IV: |
3246 | case SVt_NV: |
3247 | case SVt_RV: |
3248 | case SVt_PV: |
3249 | case SVt_PVIV: |
3250 | case SVt_PVNV: |
3251 | case SVt_PVMG: |
3252 | case SVt_PVBM: |
3253 | if (SvROK(sv)) |
3254 | return "REF"; |
3255 | else |
3256 | return "SCALAR"; |
3257 | case SVt_PVLV: return "LVALUE"; |
3258 | case SVt_PVAV: return "ARRAY"; |
3259 | case SVt_PVHV: return "HASH"; |
3260 | case SVt_PVCV: return "CODE"; |
3261 | case SVt_PVGV: return "GLOB"; |
3262 | case SVt_PVFM: return "FORMLINE"; |
3263 | default: return "UNKNOWN"; |
3264 | } |
3265 | } |
3266 | } |
3267 | |
463ee0b2 |
3268 | int |
85e6fe83 |
3269 | sv_isobject(sv) |
3270 | SV *sv; |
3271 | { |
3272 | if (!SvROK(sv)) |
3273 | return 0; |
3274 | sv = (SV*)SvRV(sv); |
3275 | if (!SvOBJECT(sv)) |
3276 | return 0; |
3277 | return 1; |
3278 | } |
3279 | |
3280 | int |
463ee0b2 |
3281 | sv_isa(sv, name) |
3282 | SV *sv; |
3283 | char *name; |
3284 | { |
ed6116ce |
3285 | if (!SvROK(sv)) |
463ee0b2 |
3286 | return 0; |
ed6116ce |
3287 | sv = (SV*)SvRV(sv); |
3288 | if (!SvOBJECT(sv)) |
463ee0b2 |
3289 | return 0; |
3290 | |
3291 | return strEQ(HvNAME(SvSTASH(sv)), name); |
3292 | } |
3293 | |
3294 | SV* |
a0d0e21e |
3295 | newSVrv(rv, classname) |
463ee0b2 |
3296 | SV *rv; |
a0d0e21e |
3297 | char *classname; |
463ee0b2 |
3298 | { |
463ee0b2 |
3299 | SV *sv; |
3300 | |
463ee0b2 |
3301 | new_SV(); |
8990e307 |
3302 | SvANY(sv) = 0; |
a0d0e21e |
3303 | SvREFCNT(sv) = 0; |
8990e307 |
3304 | SvFLAGS(sv) = 0; |
ed6116ce |
3305 | sv_upgrade(rv, SVt_RV); |
8990e307 |
3306 | SvRV(rv) = SvREFCNT_inc(sv); |
ed6116ce |
3307 | SvROK_on(rv); |
463ee0b2 |
3308 | |
a0d0e21e |
3309 | if (classname) { |
3310 | HV* stash = gv_stashpv(classname, TRUE); |
3311 | (void)sv_bless(rv, stash); |
3312 | } |
3313 | return sv; |
3314 | } |
3315 | |
3316 | SV* |
3317 | sv_setref_pv(rv, classname, pv) |
3318 | SV *rv; |
3319 | char *classname; |
3320 | void* pv; |
3321 | { |
3322 | if (!pv) |
3323 | sv_setsv(rv, &sv_undef); |
3324 | else |
3325 | sv_setiv(newSVrv(rv,classname), (IV)pv); |
3326 | return rv; |
3327 | } |
3328 | |
3329 | SV* |
3330 | sv_setref_iv(rv, classname, iv) |
3331 | SV *rv; |
3332 | char *classname; |
3333 | IV iv; |
3334 | { |
3335 | sv_setiv(newSVrv(rv,classname), iv); |
3336 | return rv; |
3337 | } |
3338 | |
3339 | SV* |
3340 | sv_setref_nv(rv, classname, nv) |
3341 | SV *rv; |
3342 | char *classname; |
3343 | double nv; |
3344 | { |
3345 | sv_setnv(newSVrv(rv,classname), nv); |
3346 | return rv; |
3347 | } |
463ee0b2 |
3348 | |
a0d0e21e |
3349 | SV* |
3350 | sv_setref_pvn(rv, classname, pv, n) |
3351 | SV *rv; |
3352 | char *classname; |
3353 | char* pv; |
3354 | I32 n; |
3355 | { |
3356 | sv_setpvn(newSVrv(rv,classname), pv, n); |
463ee0b2 |
3357 | return rv; |
3358 | } |
3359 | |
a0d0e21e |
3360 | SV* |
3361 | sv_bless(sv,stash) |
3362 | SV* sv; |
3363 | HV* stash; |
3364 | { |
3365 | SV *ref; |
3366 | if (!SvROK(sv)) |
3367 | croak("Can't bless non-reference value"); |
3368 | ref = SvRV(sv); |
3369 | if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) { |
3370 | if (SvREADONLY(ref)) |
3371 | croak(no_modify); |
3372 | if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO) |
3373 | --sv_objcount; |
3374 | } |
3375 | SvOBJECT_on(ref); |
3376 | ++sv_objcount; |
3377 | (void)SvUPGRADE(ref, SVt_PVMG); |
3378 | SvSTASH(ref) = (HV*)SvREFCNT_inc(stash); |
3379 | |
3380 | #ifdef OVERLOAD |
748a9306 |
3381 | SvAMAGIC_off(sv); |
a0d0e21e |
3382 | if (Gv_AMG(stash)) { |
3383 | SvAMAGIC_on(sv); |
3384 | } |
3385 | #endif /* OVERLOAD */ |
3386 | |
3387 | return sv; |
3388 | } |
3389 | |
3390 | static void |
3391 | sv_unglob(sv) |
3392 | SV* sv; |
3393 | { |
3394 | assert(SvTYPE(sv) == SVt_PVGV); |
3395 | SvFAKE_off(sv); |
3396 | if (GvGP(sv)) |
3397 | gp_free(sv); |
3398 | sv_unmagic(sv, '*'); |
3399 | Safefree(GvNAME(sv)); |
a5f75d66 |
3400 | GvMULTI_off(sv); |
a0d0e21e |
3401 | SvFLAGS(sv) &= ~SVTYPEMASK; |
3402 | SvFLAGS(sv) |= SVt_PVMG; |
3403 | } |
3404 | |
ed6116ce |
3405 | void |
3406 | sv_unref(sv) |
3407 | SV* sv; |
3408 | { |
a0d0e21e |
3409 | SV* rv = SvRV(sv); |
3410 | |
ed6116ce |
3411 | SvRV(sv) = 0; |
3412 | SvROK_off(sv); |
4633a7c4 |
3413 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv)) |
3414 | SvREFCNT_dec(rv); |
8e07c86e |
3415 | else |
4633a7c4 |
3416 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce |
3417 | } |
8990e307 |
3418 | |
3419 | #ifdef DEBUGGING |
3420 | void |
3421 | sv_dump(sv) |
3422 | SV* sv; |
3423 | { |
3424 | char tmpbuf[1024]; |
3425 | char *d = tmpbuf; |
3426 | U32 flags; |
3427 | U32 type; |
3428 | |
3429 | if (!sv) { |
3430 | fprintf(stderr, "SV = 0\n"); |
3431 | return; |
3432 | } |
3433 | |
3434 | flags = SvFLAGS(sv); |
3435 | type = SvTYPE(sv); |
3436 | |
3437 | sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (", |
3438 | (unsigned long)SvANY(sv), (long)SvREFCNT(sv)); |
3439 | d += strlen(d); |
3440 | if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,"); |
3441 | if (flags & SVs_PADTMP) strcat(d, "PADTMP,"); |
3442 | if (flags & SVs_PADMY) strcat(d, "PADMY,"); |
3443 | if (flags & SVs_TEMP) strcat(d, "TEMP,"); |
3444 | if (flags & SVs_OBJECT) strcat(d, "OBJECT,"); |
3445 | if (flags & SVs_GMG) strcat(d, "GMG,"); |
3446 | if (flags & SVs_SMG) strcat(d, "SMG,"); |
3447 | if (flags & SVs_RMG) strcat(d, "RMG,"); |
3448 | d += strlen(d); |
3449 | |
3450 | if (flags & SVf_IOK) strcat(d, "IOK,"); |
3451 | if (flags & SVf_NOK) strcat(d, "NOK,"); |
3452 | if (flags & SVf_POK) strcat(d, "POK,"); |
3453 | if (flags & SVf_ROK) strcat(d, "ROK,"); |
8990e307 |
3454 | if (flags & SVf_OOK) strcat(d, "OOK,"); |
a0d0e21e |
3455 | if (flags & SVf_FAKE) strcat(d, "FAKE,"); |
8990e307 |
3456 | if (flags & SVf_READONLY) strcat(d, "READONLY,"); |
3457 | d += strlen(d); |
3458 | |
3459 | if (flags & SVp_IOK) strcat(d, "pIOK,"); |
3460 | if (flags & SVp_NOK) strcat(d, "pNOK,"); |
3461 | if (flags & SVp_POK) strcat(d, "pPOK,"); |
3462 | if (flags & SVp_SCREAM) strcat(d, "SCREAM,"); |
3463 | d += strlen(d); |
3464 | if (d[-1] == ',') |
3465 | d--; |
3466 | *d++ = ')'; |
3467 | *d = '\0'; |
3468 | |
3469 | fprintf(stderr, "SV = "); |
3470 | switch (type) { |
3471 | case SVt_NULL: |
3472 | fprintf(stderr,"NULL%s\n", tmpbuf); |
3473 | return; |
3474 | case SVt_IV: |
3475 | fprintf(stderr,"IV%s\n", tmpbuf); |
3476 | break; |
3477 | case SVt_NV: |
3478 | fprintf(stderr,"NV%s\n", tmpbuf); |
3479 | break; |
3480 | case SVt_RV: |
3481 | fprintf(stderr,"RV%s\n", tmpbuf); |
3482 | break; |
3483 | case SVt_PV: |
3484 | fprintf(stderr,"PV%s\n", tmpbuf); |
3485 | break; |
3486 | case SVt_PVIV: |
3487 | fprintf(stderr,"PVIV%s\n", tmpbuf); |
3488 | break; |
3489 | case SVt_PVNV: |
3490 | fprintf(stderr,"PVNV%s\n", tmpbuf); |
3491 | break; |
3492 | case SVt_PVBM: |
3493 | fprintf(stderr,"PVBM%s\n", tmpbuf); |
3494 | break; |
3495 | case SVt_PVMG: |
3496 | fprintf(stderr,"PVMG%s\n", tmpbuf); |
3497 | break; |
3498 | case SVt_PVLV: |
3499 | fprintf(stderr,"PVLV%s\n", tmpbuf); |
3500 | break; |
3501 | case SVt_PVAV: |
3502 | fprintf(stderr,"PVAV%s\n", tmpbuf); |
3503 | break; |
3504 | case SVt_PVHV: |
3505 | fprintf(stderr,"PVHV%s\n", tmpbuf); |
3506 | break; |
3507 | case SVt_PVCV: |
3508 | fprintf(stderr,"PVCV%s\n", tmpbuf); |
3509 | break; |
3510 | case SVt_PVGV: |
3511 | fprintf(stderr,"PVGV%s\n", tmpbuf); |
3512 | break; |
3513 | case SVt_PVFM: |
3514 | fprintf(stderr,"PVFM%s\n", tmpbuf); |
3515 | break; |
3516 | case SVt_PVIO: |
3517 | fprintf(stderr,"PVIO%s\n", tmpbuf); |
3518 | break; |
3519 | default: |
3520 | fprintf(stderr,"UNKNOWN%s\n", tmpbuf); |
3521 | return; |
3522 | } |
3523 | if (type >= SVt_PVIV || type == SVt_IV) |
3524 | fprintf(stderr, " IV = %ld\n", (long)SvIVX(sv)); |
3525 | if (type >= SVt_PVNV || type == SVt_NV) |
a0d0e21e |
3526 | fprintf(stderr, " NV = %.*g\n", DBL_DIG, SvNVX(sv)); |
8990e307 |
3527 | if (SvROK(sv)) { |
a0d0e21e |
3528 | fprintf(stderr, " RV = 0x%lx\n", (long)SvRV(sv)); |
8990e307 |
3529 | sv_dump(SvRV(sv)); |
3530 | return; |
3531 | } |
3532 | if (type < SVt_PV) |
3533 | return; |
3534 | if (type <= SVt_PVLV) { |
3535 | if (SvPVX(sv)) |
3536 | fprintf(stderr, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n", |
a0d0e21e |
3537 | (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv)); |
8990e307 |
3538 | else |
3539 | fprintf(stderr, " PV = 0\n"); |
3540 | } |
3541 | if (type >= SVt_PVMG) { |
3542 | if (SvMAGIC(sv)) { |
a0d0e21e |
3543 | fprintf(stderr, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv)); |
8990e307 |
3544 | } |
3545 | if (SvSTASH(sv)) |
3546 | fprintf(stderr, " STASH = %s\n", HvNAME(SvSTASH(sv))); |
3547 | } |
3548 | switch (type) { |
3549 | case SVt_PVLV: |
3550 | fprintf(stderr, " TYPE = %c\n", LvTYPE(sv)); |
3551 | fprintf(stderr, " TARGOFF = %ld\n", (long)LvTARGOFF(sv)); |
3552 | fprintf(stderr, " TARGLEN = %ld\n", (long)LvTARGLEN(sv)); |
a0d0e21e |
3553 | fprintf(stderr, " TARG = 0x%lx\n", (long)LvTARG(sv)); |
8990e307 |
3554 | sv_dump(LvTARG(sv)); |
3555 | break; |
3556 | case SVt_PVAV: |
a0d0e21e |
3557 | fprintf(stderr, " ARRAY = 0x%lx\n", (long)AvARRAY(sv)); |
3558 | fprintf(stderr, " ALLOC = 0x%lx\n", (long)AvALLOC(sv)); |
8990e307 |
3559 | fprintf(stderr, " FILL = %ld\n", (long)AvFILL(sv)); |
3560 | fprintf(stderr, " MAX = %ld\n", (long)AvMAX(sv)); |
a0d0e21e |
3561 | fprintf(stderr, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv)); |
4633a7c4 |
3562 | flags = AvFLAGS(sv); |
3563 | d = tmpbuf; |
3564 | if (flags & AVf_REAL) strcat(d, "REAL,"); |
3565 | if (flags & AVf_REIFY) strcat(d, "REIFY,"); |
3566 | if (flags & AVf_REUSED) strcat(d, "REUSED,"); |
3567 | if (*d) |
3568 | d[strlen(d)-1] = '\0'; |
3569 | fprintf(stderr, " FLAGS = (%s)\n", d); |
8990e307 |
3570 | break; |
3571 | case SVt_PVHV: |
a0d0e21e |
3572 | fprintf(stderr, " ARRAY = 0x%lx\n",(long)HvARRAY(sv)); |
8990e307 |
3573 | fprintf(stderr, " KEYS = %ld\n", (long)HvKEYS(sv)); |
3574 | fprintf(stderr, " FILL = %ld\n", (long)HvFILL(sv)); |
3575 | fprintf(stderr, " MAX = %ld\n", (long)HvMAX(sv)); |
3576 | fprintf(stderr, " RITER = %ld\n", (long)HvRITER(sv)); |
a0d0e21e |
3577 | fprintf(stderr, " EITER = 0x%lx\n",(long) HvEITER(sv)); |
8990e307 |
3578 | if (HvPMROOT(sv)) |
a0d0e21e |
3579 | fprintf(stderr, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv)); |
8990e307 |
3580 | if (HvNAME(sv)) |
3581 | fprintf(stderr, " NAME = \"%s\"\n", HvNAME(sv)); |
3582 | break; |
3583 | case SVt_PVFM: |
3584 | case SVt_PVCV: |
a0d0e21e |
3585 | fprintf(stderr, " STASH = 0x%lx\n", (long)CvSTASH(sv)); |
3586 | fprintf(stderr, " START = 0x%lx\n", (long)CvSTART(sv)); |
3587 | fprintf(stderr, " ROOT = 0x%lx\n", (long)CvROOT(sv)); |
3588 | fprintf(stderr, " XSUB = 0x%lx\n", (long)CvXSUB(sv)); |
3589 | fprintf(stderr, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32); |
3590 | fprintf(stderr, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv)); |
8990e307 |
3591 | fprintf(stderr, " DEPTH = %ld\n", (long)CvDEPTH(sv)); |
a0d0e21e |
3592 | fprintf(stderr, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv)); |
e9a444f0 |
3593 | fprintf(stderr, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv)); |
8990e307 |
3594 | if (type == SVt_PVFM) |
3595 | fprintf(stderr, " LINES = %ld\n", (long)FmLINES(sv)); |
3596 | break; |
3597 | case SVt_PVGV: |
3598 | fprintf(stderr, " NAME = %s\n", GvNAME(sv)); |
3599 | fprintf(stderr, " NAMELEN = %ld\n", (long)GvNAMELEN(sv)); |
a0d0e21e |
3600 | fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv)); |
3601 | fprintf(stderr, " GP = 0x%lx\n", (long)GvGP(sv)); |
3602 | fprintf(stderr, " SV = 0x%lx\n", (long)GvSV(sv)); |
8990e307 |
3603 | fprintf(stderr, " REFCNT = %ld\n", (long)GvREFCNT(sv)); |
a0d0e21e |
3604 | fprintf(stderr, " IO = 0x%lx\n", (long)GvIOp(sv)); |
3605 | fprintf(stderr, " FORM = 0x%lx\n", (long)GvFORM(sv)); |
3606 | fprintf(stderr, " AV = 0x%lx\n", (long)GvAV(sv)); |
3607 | fprintf(stderr, " HV = 0x%lx\n", (long)GvHV(sv)); |
3608 | fprintf(stderr, " CV = 0x%lx\n", (long)GvCV(sv)); |
3609 | fprintf(stderr, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv)); |
8990e307 |
3610 | fprintf(stderr, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv)); |
3611 | fprintf(stderr, " LINE = %ld\n", (long)GvLINE(sv)); |
3612 | fprintf(stderr, " FLAGS = 0x%x\n", (int)GvFLAGS(sv)); |
a0d0e21e |
3613 | fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv)); |
3614 | fprintf(stderr, " EGV = 0x%lx\n", (long)GvEGV(sv)); |
8990e307 |
3615 | break; |
3616 | case SVt_PVIO: |
a0d0e21e |
3617 | fprintf(stderr, " IFP = 0x%lx\n", (long)IoIFP(sv)); |
3618 | fprintf(stderr, " OFP = 0x%lx\n", (long)IoOFP(sv)); |
3619 | fprintf(stderr, " DIRP = 0x%lx\n", (long)IoDIRP(sv)); |
8990e307 |
3620 | fprintf(stderr, " LINES = %ld\n", (long)IoLINES(sv)); |
3621 | fprintf(stderr, " PAGE = %ld\n", (long)IoPAGE(sv)); |
3622 | fprintf(stderr, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv)); |
3623 | fprintf(stderr, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv)); |
3624 | fprintf(stderr, " TOP_NAME = %s\n", IoTOP_NAME(sv)); |
a0d0e21e |
3625 | fprintf(stderr, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv)); |
8990e307 |
3626 | fprintf(stderr, " FMT_NAME = %s\n", IoFMT_NAME(sv)); |
a0d0e21e |
3627 | fprintf(stderr, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv)); |
8990e307 |
3628 | fprintf(stderr, " BOTTOM_NAME = %s\n", IoBOTTOM_NAME(sv)); |
a0d0e21e |
3629 | fprintf(stderr, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv)); |
8990e307 |
3630 | fprintf(stderr, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv)); |
3631 | fprintf(stderr, " TYPE = %c\n", IoTYPE(sv)); |
a0d0e21e |
3632 | fprintf(stderr, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv)); |
8990e307 |
3633 | break; |
3634 | } |
3635 | } |
2304df62 |
3636 | #else |
3637 | void |
3638 | sv_dump(sv) |
3639 | SV* sv; |
3640 | { |
3641 | } |
8990e307 |
3642 | #endif |
a0d0e21e |
3643 | |
3644 | IO* |
3645 | sv_2io(sv) |
3646 | SV *sv; |
3647 | { |
3648 | IO* io; |
3649 | GV* gv; |
3650 | |
3651 | switch (SvTYPE(sv)) { |
3652 | case SVt_PVIO: |
3653 | io = (IO*)sv; |
3654 | break; |
3655 | case SVt_PVGV: |
3656 | gv = (GV*)sv; |
3657 | io = GvIO(gv); |
3658 | if (!io) |
3659 | croak("Bad filehandle: %s", GvNAME(gv)); |
3660 | break; |
3661 | default: |
3662 | if (!SvOK(sv)) |
3663 | croak(no_usym, "filehandle"); |
3664 | if (SvROK(sv)) |
3665 | return sv_2io(SvRV(sv)); |
3666 | gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO); |
3667 | if (gv) |
3668 | io = GvIO(gv); |
3669 | else |
3670 | io = 0; |
3671 | if (!io) |
3672 | croak("Bad filehandle: %s", SvPV(sv,na)); |
3673 | break; |
3674 | } |
3675 | return io; |
3676 | } |
3677 | |