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