Commit | Line | Data |
---|---|---|
a0d0e21e | 1 | /* sv.c |
79072805 | 2 | * |
a0d0e21e | 3 | * Copyright (c) 1991-1994, Larry Wall |
79072805 LW |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public | |
6 | * License or the Artistic License, as specified in the README file. | |
7 | * | |
a0d0e21e LW |
8 | */ |
9 | ||
10 | /* | |
11 | * "I wonder what the Entish is for 'yes' and 'no'," he thought. | |
79072805 LW |
12 | */ |
13 | ||
14 | #include "EXTERN.h" | |
15 | #include "perl.h" | |
79072805 | 16 | |
a0d0e21e LW |
17 | /* The following is all to get DBL_DIG, in order to pick a nice |
18 | default value for printing floating point numbers in Gconvert. | |
19 | (see config.h) | |
20 | */ | |
21 | #ifdef I_LIMITS | |
22 | #include <limits.h> | |
23 | #endif | |
24 | #ifdef I_FLOAT | |
25 | #include <float.h> | |
26 | #endif | |
27 | #ifndef HAS_DBL_DIG | |
28 | #define DBL_DIG 15 /* A guess that works lots of places */ | |
29 | #endif | |
30 | ||
31 | static SV *more_sv _((void)); | |
32 | static XPVIV *more_xiv _((void)); | |
33 | static XPVNV *more_xnv _((void)); | |
34 | static XPV *more_xpv _((void)); | |
35 | static XRV *more_xrv _((void)); | |
36 | static SV *new_sv _((void)); | |
37 | static XPVIV *new_xiv _((void)); | |
38 | static XPVNV *new_xnv _((void)); | |
39 | static XPV *new_xpv _((void)); | |
40 | static XRV *new_xrv _((void)); | |
41 | static void del_xiv _((XPVIV* p)); | |
42 | static void del_xnv _((XPVNV* p)); | |
43 | static void del_xpv _((XPV* p)); | |
44 | static void del_xrv _((XRV* p)); | |
45 | static void sv_mortalgrow _((void)); | |
46 | ||
47 | static void sv_unglob _((SV* sv)); | |
48 | ||
49 | #ifdef PURIFY | |
79072805 | 50 | |
a0d0e21e LW |
51 | #define new_SV() sv = (SV*)safemalloc(sizeof(SV)) |
52 | #define del_SV(p) free((char*)p) | |
53 | ||
4633a7c4 LW |
54 | void |
55 | sv_add_arena(ptr, size, flags) | |
56 | char* ptr; | |
57 | U32 size; | |
58 | U32 flags; | |
59 | { | |
60 | if (!(flags & SVf_FAKE)) | |
61 | free(ptr); | |
62 | } | |
63 | ||
a0d0e21e LW |
64 | #else |
65 | ||
66 | #define new_SV() \ | |
67 | if (sv_root) { \ | |
68 | sv = sv_root; \ | |
69 | sv_root = (SV*)SvANY(sv); \ | |
70 | ++sv_count; \ | |
71 | } \ | |
72 | else \ | |
73 | sv = more_sv(); | |
463ee0b2 LW |
74 | |
75 | static SV* | |
76 | new_sv() | |
77 | { | |
78 | SV* sv; | |
79 | if (sv_root) { | |
80 | sv = sv_root; | |
81 | sv_root = (SV*)SvANY(sv); | |
8990e307 | 82 | ++sv_count; |
463ee0b2 LW |
83 | return sv; |
84 | } | |
85 | return more_sv(); | |
86 | } | |
87 | ||
a0d0e21e LW |
88 | #ifdef DEBUGGING |
89 | #define del_SV(p) \ | |
90 | if (debug & 32768) \ | |
91 | del_sv(p); \ | |
92 | else { \ | |
93 | SvANY(p) = (void *)sv_root; \ | |
94 | sv_root = p; \ | |
95 | --sv_count; \ | |
96 | } | |
97 | ||
463ee0b2 LW |
98 | static void |
99 | del_sv(p) | |
100 | SV* p; | |
101 | { | |
a0d0e21e | 102 | if (debug & 32768) { |
4633a7c4 | 103 | SV* sva; |
a0d0e21e LW |
104 | SV* sv; |
105 | SV* svend; | |
106 | int ok = 0; | |
4633a7c4 LW |
107 | for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
108 | sv = sva + 1; | |
109 | svend = &sva[SvREFCNT(sva)]; | |
a0d0e21e LW |
110 | if (p >= sv && p < svend) |
111 | ok = 1; | |
112 | } | |
113 | if (!ok) { | |
114 | warn("Attempt to free non-arena SV: 0x%lx", (unsigned long)p); | |
115 | return; | |
116 | } | |
117 | } | |
118 | SvANY(p) = (void *) sv_root; | |
463ee0b2 | 119 | sv_root = p; |
8990e307 | 120 | --sv_count; |
463ee0b2 | 121 | } |
a0d0e21e LW |
122 | #else |
123 | #define del_SV(p) \ | |
124 | SvANY(p) = (void *)sv_root; \ | |
125 | sv_root = p; \ | |
126 | --sv_count; | |
127 | ||
128 | #endif | |
463ee0b2 | 129 | |
4633a7c4 LW |
130 | void |
131 | sv_add_arena(ptr, size, flags) | |
132 | char* ptr; | |
133 | U32 size; | |
134 | U32 flags; | |
463ee0b2 | 135 | { |
4633a7c4 | 136 | SV* sva = (SV*)ptr; |
463ee0b2 LW |
137 | register SV* sv; |
138 | register SV* svend; | |
4633a7c4 LW |
139 | Zero(sva, size, char); |
140 | ||
141 | /* The first SV in an arena isn't an SV. */ | |
142 | SvANY(sva) = (void *) sv_arenaroot; /* ptr to next arena */ | |
143 | SvREFCNT(sva) = size / sizeof(SV); /* number of SV slots */ | |
144 | SvFLAGS(sva) = flags; /* FAKE if not to be freed */ | |
145 | ||
146 | sv_arenaroot = sva; | |
147 | sv_root = sva + 1; | |
148 | ||
149 | svend = &sva[SvREFCNT(sva) - 1]; | |
150 | sv = sva + 1; | |
463ee0b2 | 151 | while (sv < svend) { |
a0d0e21e | 152 | SvANY(sv) = (void *)(SV*)(sv + 1); |
8990e307 | 153 | SvFLAGS(sv) = SVTYPEMASK; |
463ee0b2 LW |
154 | sv++; |
155 | } | |
156 | SvANY(sv) = 0; | |
4633a7c4 LW |
157 | SvFLAGS(sv) = SVTYPEMASK; |
158 | } | |
159 | ||
160 | static SV* | |
161 | more_sv() | |
162 | { | |
163 | sv_add_arena(safemalloc(1008), 1008, 0); | |
463ee0b2 LW |
164 | return new_sv(); |
165 | } | |
748a9306 | 166 | #endif |
463ee0b2 | 167 | |
8990e307 LW |
168 | void |
169 | sv_report_used() | |
170 | { | |
4633a7c4 | 171 | SV* sva; |
8990e307 LW |
172 | SV* sv; |
173 | register SV* svend; | |
174 | ||
4633a7c4 LW |
175 | for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
176 | sv = sva + 1; | |
177 | svend = &sva[SvREFCNT(sva)]; | |
8990e307 LW |
178 | while (sv < svend) { |
179 | if (SvTYPE(sv) != SVTYPEMASK) { | |
180 | fprintf(stderr, "****\n"); | |
181 | sv_dump(sv); | |
182 | } | |
183 | ++sv; | |
184 | } | |
185 | } | |
186 | } | |
187 | ||
188 | void | |
a0d0e21e | 189 | sv_clean_objs() |
8990e307 | 190 | { |
4633a7c4 | 191 | SV* sva; |
8990e307 LW |
192 | register SV* sv; |
193 | register SV* svend; | |
a0d0e21e | 194 | SV* rv; |
8990e307 | 195 | |
4633a7c4 LW |
196 | for (sva = sv_arenaroot; sva; sva = (SV *) SvANY(sva)) { |
197 | sv = sva + 1; | |
198 | svend = &sva[SvREFCNT(sva)]; | |
8990e307 | 199 | while (sv < svend) { |
a0d0e21e LW |
200 | if (SvROK(sv) && SvOBJECT(rv = SvRV(sv))) { |
201 | DEBUG_D((fprintf(stderr, "Cleaning object ref:\n "), | |
202 | sv_dump(sv));) | |
203 | SvROK_off(sv); | |
204 | SvRV(sv) = 0; | |
205 | SvREFCNT_dec(rv); | |
8990e307 | 206 | } |
a0d0e21e | 207 | /* XXX Might want to check arrays, etc. */ |
8990e307 LW |
208 | ++sv; |
209 | } | |
210 | } | |
211 | } | |
212 | ||
213 | void | |
8990e307 LW |
214 | sv_clean_all() |
215 | { | |
4633a7c4 | 216 | SV* sva; |
8990e307 LW |
217 | register SV* sv; |
218 | register SV* svend; | |
219 | ||
4633a7c4 LW |
220 | for (sva = sv_arenaroot; sva; sva = (SV*) SvANY(sva)) { |
221 | sv = sva + 1; | |
222 | svend = &sva[SvREFCNT(sva)]; | |
8990e307 LW |
223 | while (sv < svend) { |
224 | if (SvTYPE(sv) != SVTYPEMASK) { | |
225 | DEBUG_D((fprintf(stderr, "Cleaning loops:\n "), sv_dump(sv));) | |
226 | SvFLAGS(sv) |= SVf_BREAK; | |
227 | SvREFCNT_dec(sv); | |
228 | } | |
229 | ++sv; | |
230 | } | |
231 | } | |
232 | } | |
463ee0b2 | 233 | |
4633a7c4 LW |
234 | void |
235 | sv_free_arenas() | |
236 | { | |
237 | SV* sva; | |
238 | SV* svanext; | |
239 | ||
240 | /* Free arenas here, but be careful about fake ones. (We assume | |
241 | contiguity of the fake ones with the corresponding real ones.) */ | |
242 | ||
243 | for (sva = sv_arenaroot; sva; sva = svanext) { | |
244 | svanext = (SV*) SvANY(sva); | |
245 | while (svanext && SvFAKE(svanext)) | |
246 | svanext = (SV*) SvANY(svanext); | |
247 | ||
248 | if (!SvFAKE(sva)) | |
249 | Safefree(sva); | |
250 | } | |
251 | } | |
252 | ||
463ee0b2 LW |
253 | static XPVIV* |
254 | new_xiv() | |
255 | { | |
a0d0e21e | 256 | IV** xiv; |
463ee0b2 LW |
257 | if (xiv_root) { |
258 | xiv = xiv_root; | |
85e6fe83 LW |
259 | /* |
260 | * See comment in more_xiv() -- RAM. | |
261 | */ | |
a0d0e21e | 262 | xiv_root = (IV**)*xiv; |
463ee0b2 LW |
263 | return (XPVIV*)((char*)xiv - sizeof(XPV)); |
264 | } | |
265 | return more_xiv(); | |
266 | } | |
267 | ||
268 | static void | |
269 | del_xiv(p) | |
270 | XPVIV* p; | |
271 | { | |
a0d0e21e LW |
272 | IV** xiv = (IV**)((char*)(p) + sizeof(XPV)); |
273 | *xiv = (IV *)xiv_root; | |
463ee0b2 LW |
274 | xiv_root = xiv; |
275 | } | |
276 | ||
277 | static XPVIV* | |
278 | more_xiv() | |
279 | { | |
a0d0e21e LW |
280 | register IV** xiv; |
281 | register IV** xivend; | |
282 | XPV* ptr = (XPV*)safemalloc(1008); | |
283 | ptr->xpv_pv = (char*)xiv_arenaroot; /* linked list of xiv arenas */ | |
284 | xiv_arenaroot = ptr; /* to keep Purify happy */ | |
285 | ||
286 | xiv = (IV**) ptr; | |
287 | xivend = &xiv[1008 / sizeof(IV *) - 1]; | |
288 | xiv += (sizeof(XPV) - 1) / sizeof(IV *) + 1; /* fudge by size of XPV */ | |
463ee0b2 LW |
289 | xiv_root = xiv; |
290 | while (xiv < xivend) { | |
a0d0e21e | 291 | *xiv = (IV *)(xiv + 1); |
463ee0b2 LW |
292 | xiv++; |
293 | } | |
85e6fe83 | 294 | *xiv = 0; |
463ee0b2 LW |
295 | return new_xiv(); |
296 | } | |
297 | ||
463ee0b2 LW |
298 | static XPVNV* |
299 | new_xnv() | |
300 | { | |
301 | double* xnv; | |
302 | if (xnv_root) { | |
303 | xnv = xnv_root; | |
304 | xnv_root = *(double**)xnv; | |
305 | return (XPVNV*)((char*)xnv - sizeof(XPVIV)); | |
306 | } | |
307 | return more_xnv(); | |
308 | } | |
309 | ||
310 | static void | |
311 | del_xnv(p) | |
312 | XPVNV* p; | |
313 | { | |
314 | double* xnv = (double*)((char*)(p) + sizeof(XPVIV)); | |
315 | *(double**)xnv = xnv_root; | |
316 | xnv_root = xnv; | |
317 | } | |
318 | ||
319 | static XPVNV* | |
320 | more_xnv() | |
321 | { | |
463ee0b2 LW |
322 | register double* xnv; |
323 | register double* xnvend; | |
8990e307 | 324 | xnv = (double*)safemalloc(1008); |
463ee0b2 LW |
325 | xnvend = &xnv[1008 / sizeof(double) - 1]; |
326 | xnv += (sizeof(XPVIV) - 1) / sizeof(double) + 1; /* fudge by sizeof XPVIV */ | |
327 | xnv_root = xnv; | |
328 | while (xnv < xnvend) { | |
329 | *(double**)xnv = (double*)(xnv + 1); | |
330 | xnv++; | |
331 | } | |
332 | *(double**)xnv = 0; | |
333 | return new_xnv(); | |
334 | } | |
335 | ||
ed6116ce LW |
336 | static XRV* |
337 | new_xrv() | |
338 | { | |
339 | XRV* xrv; | |
340 | if (xrv_root) { | |
341 | xrv = xrv_root; | |
342 | xrv_root = (XRV*)xrv->xrv_rv; | |
343 | return xrv; | |
344 | } | |
345 | return more_xrv(); | |
346 | } | |
347 | ||
348 | static void | |
349 | del_xrv(p) | |
350 | XRV* p; | |
351 | { | |
352 | p->xrv_rv = (SV*)xrv_root; | |
353 | xrv_root = p; | |
354 | } | |
355 | ||
356 | static XRV* | |
357 | more_xrv() | |
358 | { | |
ed6116ce LW |
359 | register XRV* xrv; |
360 | register XRV* xrvend; | |
8990e307 | 361 | xrv_root = (XRV*)safemalloc(1008); |
ed6116ce LW |
362 | xrv = xrv_root; |
363 | xrvend = &xrv[1008 / sizeof(XRV) - 1]; | |
364 | while (xrv < xrvend) { | |
365 | xrv->xrv_rv = (SV*)(xrv + 1); | |
366 | xrv++; | |
367 | } | |
368 | xrv->xrv_rv = 0; | |
369 | return new_xrv(); | |
370 | } | |
371 | ||
463ee0b2 LW |
372 | static XPV* |
373 | new_xpv() | |
374 | { | |
375 | XPV* xpv; | |
376 | if (xpv_root) { | |
377 | xpv = xpv_root; | |
378 | xpv_root = (XPV*)xpv->xpv_pv; | |
379 | return xpv; | |
380 | } | |
381 | return more_xpv(); | |
382 | } | |
383 | ||
384 | static void | |
385 | del_xpv(p) | |
386 | XPV* p; | |
387 | { | |
388 | p->xpv_pv = (char*)xpv_root; | |
389 | xpv_root = p; | |
390 | } | |
391 | ||
392 | static XPV* | |
393 | more_xpv() | |
394 | { | |
463ee0b2 LW |
395 | register XPV* xpv; |
396 | register XPV* xpvend; | |
8990e307 | 397 | xpv_root = (XPV*)safemalloc(1008); |
463ee0b2 LW |
398 | xpv = xpv_root; |
399 | xpvend = &xpv[1008 / sizeof(XPV) - 1]; | |
400 | while (xpv < xpvend) { | |
401 | xpv->xpv_pv = (char*)(xpv + 1); | |
402 | xpv++; | |
403 | } | |
404 | xpv->xpv_pv = 0; | |
405 | return new_xpv(); | |
406 | } | |
407 | ||
408 | #ifdef PURIFY | |
8990e307 | 409 | #define new_XIV() (void*)safemalloc(sizeof(XPVIV)) |
463ee0b2 LW |
410 | #define del_XIV(p) free((char*)p) |
411 | #else | |
85e6fe83 | 412 | #define new_XIV() (void*)new_xiv() |
463ee0b2 LW |
413 | #define del_XIV(p) del_xiv(p) |
414 | #endif | |
415 | ||
416 | #ifdef PURIFY | |
8990e307 | 417 | #define new_XNV() (void*)safemalloc(sizeof(XPVNV)) |
463ee0b2 LW |
418 | #define del_XNV(p) free((char*)p) |
419 | #else | |
85e6fe83 | 420 | #define new_XNV() (void*)new_xnv() |
463ee0b2 LW |
421 | #define del_XNV(p) del_xnv(p) |
422 | #endif | |
423 | ||
424 | #ifdef PURIFY | |
8990e307 | 425 | #define new_XRV() (void*)safemalloc(sizeof(XRV)) |
ed6116ce LW |
426 | #define del_XRV(p) free((char*)p) |
427 | #else | |
85e6fe83 | 428 | #define new_XRV() (void*)new_xrv() |
ed6116ce LW |
429 | #define del_XRV(p) del_xrv(p) |
430 | #endif | |
431 | ||
432 | #ifdef PURIFY | |
8990e307 | 433 | #define new_XPV() (void*)safemalloc(sizeof(XPV)) |
463ee0b2 LW |
434 | #define del_XPV(p) free((char*)p) |
435 | #else | |
85e6fe83 | 436 | #define new_XPV() (void*)new_xpv() |
463ee0b2 LW |
437 | #define del_XPV(p) del_xpv(p) |
438 | #endif | |
439 | ||
8990e307 | 440 | #define new_XPVIV() (void*)safemalloc(sizeof(XPVIV)) |
463ee0b2 LW |
441 | #define del_XPVIV(p) free((char*)p) |
442 | ||
8990e307 | 443 | #define new_XPVNV() (void*)safemalloc(sizeof(XPVNV)) |
463ee0b2 LW |
444 | #define del_XPVNV(p) free((char*)p) |
445 | ||
8990e307 | 446 | #define new_XPVMG() (void*)safemalloc(sizeof(XPVMG)) |
463ee0b2 LW |
447 | #define del_XPVMG(p) free((char*)p) |
448 | ||
8990e307 | 449 | #define new_XPVLV() (void*)safemalloc(sizeof(XPVLV)) |
463ee0b2 LW |
450 | #define del_XPVLV(p) free((char*)p) |
451 | ||
8990e307 | 452 | #define new_XPVAV() (void*)safemalloc(sizeof(XPVAV)) |
463ee0b2 LW |
453 | #define del_XPVAV(p) free((char*)p) |
454 | ||
8990e307 | 455 | #define new_XPVHV() (void*)safemalloc(sizeof(XPVHV)) |
463ee0b2 LW |
456 | #define del_XPVHV(p) free((char*)p) |
457 | ||
8990e307 | 458 | #define new_XPVCV() (void*)safemalloc(sizeof(XPVCV)) |
463ee0b2 LW |
459 | #define del_XPVCV(p) free((char*)p) |
460 | ||
8990e307 | 461 | #define new_XPVGV() (void*)safemalloc(sizeof(XPVGV)) |
463ee0b2 LW |
462 | #define del_XPVGV(p) free((char*)p) |
463 | ||
8990e307 | 464 | #define new_XPVBM() (void*)safemalloc(sizeof(XPVBM)) |
463ee0b2 LW |
465 | #define del_XPVBM(p) free((char*)p) |
466 | ||
8990e307 | 467 | #define new_XPVFM() (void*)safemalloc(sizeof(XPVFM)) |
463ee0b2 LW |
468 | #define del_XPVFM(p) free((char*)p) |
469 | ||
8990e307 LW |
470 | #define new_XPVIO() (void*)safemalloc(sizeof(XPVIO)) |
471 | #define del_XPVIO(p) free((char*)p) | |
472 | ||
79072805 LW |
473 | bool |
474 | sv_upgrade(sv, mt) | |
475 | register SV* sv; | |
476 | U32 mt; | |
477 | { | |
478 | char* pv; | |
479 | U32 cur; | |
480 | U32 len; | |
a0d0e21e | 481 | IV iv; |
79072805 LW |
482 | double nv; |
483 | MAGIC* magic; | |
484 | HV* stash; | |
485 | ||
486 | if (SvTYPE(sv) == mt) | |
487 | return TRUE; | |
488 | ||
489 | switch (SvTYPE(sv)) { | |
490 | case SVt_NULL: | |
491 | pv = 0; | |
492 | cur = 0; | |
493 | len = 0; | |
494 | iv = 0; | |
495 | nv = 0.0; | |
496 | magic = 0; | |
497 | stash = 0; | |
498 | break; | |
79072805 LW |
499 | case SVt_IV: |
500 | pv = 0; | |
501 | cur = 0; | |
502 | len = 0; | |
463ee0b2 LW |
503 | iv = SvIVX(sv); |
504 | nv = (double)SvIVX(sv); | |
79072805 LW |
505 | del_XIV(SvANY(sv)); |
506 | magic = 0; | |
507 | stash = 0; | |
ed6116ce | 508 | if (mt == SVt_NV) |
463ee0b2 | 509 | mt = SVt_PVNV; |
ed6116ce LW |
510 | else if (mt < SVt_PVIV) |
511 | mt = SVt_PVIV; | |
79072805 LW |
512 | break; |
513 | case SVt_NV: | |
514 | pv = 0; | |
515 | cur = 0; | |
516 | len = 0; | |
463ee0b2 | 517 | nv = SvNVX(sv); |
ed6116ce | 518 | iv = I_32(nv); |
79072805 LW |
519 | magic = 0; |
520 | stash = 0; | |
521 | del_XNV(SvANY(sv)); | |
522 | SvANY(sv) = 0; | |
ed6116ce | 523 | if (mt < SVt_PVNV) |
79072805 LW |
524 | mt = SVt_PVNV; |
525 | break; | |
ed6116ce LW |
526 | case SVt_RV: |
527 | pv = (char*)SvRV(sv); | |
528 | cur = 0; | |
529 | len = 0; | |
a0d0e21e | 530 | iv = (IV)pv; |
ed6116ce LW |
531 | nv = (double)(unsigned long)pv; |
532 | del_XRV(SvANY(sv)); | |
533 | magic = 0; | |
534 | stash = 0; | |
535 | break; | |
79072805 LW |
536 | case SVt_PV: |
537 | nv = 0.0; | |
463ee0b2 | 538 | pv = SvPVX(sv); |
79072805 LW |
539 | cur = SvCUR(sv); |
540 | len = SvLEN(sv); | |
541 | iv = 0; | |
542 | nv = 0.0; | |
543 | magic = 0; | |
544 | stash = 0; | |
545 | del_XPV(SvANY(sv)); | |
748a9306 LW |
546 | if (mt <= SVt_IV) |
547 | mt = SVt_PVIV; | |
548 | else if (mt == SVt_NV) | |
549 | mt = SVt_PVNV; | |
79072805 LW |
550 | break; |
551 | case SVt_PVIV: | |
552 | nv = 0.0; | |
463ee0b2 | 553 | pv = SvPVX(sv); |
79072805 LW |
554 | cur = SvCUR(sv); |
555 | len = SvLEN(sv); | |
463ee0b2 | 556 | iv = SvIVX(sv); |
79072805 LW |
557 | nv = 0.0; |
558 | magic = 0; | |
559 | stash = 0; | |
560 | del_XPVIV(SvANY(sv)); | |
561 | break; | |
562 | case SVt_PVNV: | |
463ee0b2 LW |
563 | nv = SvNVX(sv); |
564 | pv = SvPVX(sv); | |
79072805 LW |
565 | cur = SvCUR(sv); |
566 | len = SvLEN(sv); | |
463ee0b2 LW |
567 | iv = SvIVX(sv); |
568 | nv = SvNVX(sv); | |
79072805 LW |
569 | magic = 0; |
570 | stash = 0; | |
571 | del_XPVNV(SvANY(sv)); | |
572 | break; | |
573 | case SVt_PVMG: | |
463ee0b2 | 574 | pv = SvPVX(sv); |
79072805 LW |
575 | cur = SvCUR(sv); |
576 | len = SvLEN(sv); | |
463ee0b2 LW |
577 | iv = SvIVX(sv); |
578 | nv = SvNVX(sv); | |
79072805 LW |
579 | magic = SvMAGIC(sv); |
580 | stash = SvSTASH(sv); | |
581 | del_XPVMG(SvANY(sv)); | |
582 | break; | |
583 | default: | |
463ee0b2 | 584 | croak("Can't upgrade that kind of scalar"); |
79072805 LW |
585 | } |
586 | ||
587 | switch (mt) { | |
588 | case SVt_NULL: | |
463ee0b2 | 589 | croak("Can't upgrade to undef"); |
79072805 LW |
590 | case SVt_IV: |
591 | SvANY(sv) = new_XIV(); | |
463ee0b2 | 592 | SvIVX(sv) = iv; |
79072805 LW |
593 | break; |
594 | case SVt_NV: | |
595 | SvANY(sv) = new_XNV(); | |
463ee0b2 | 596 | SvNVX(sv) = nv; |
79072805 | 597 | break; |
ed6116ce LW |
598 | case SVt_RV: |
599 | SvANY(sv) = new_XRV(); | |
600 | SvRV(sv) = (SV*)pv; | |
ed6116ce | 601 | break; |
79072805 LW |
602 | case SVt_PV: |
603 | SvANY(sv) = new_XPV(); | |
463ee0b2 | 604 | SvPVX(sv) = pv; |
79072805 LW |
605 | SvCUR(sv) = cur; |
606 | SvLEN(sv) = len; | |
607 | break; | |
608 | case SVt_PVIV: | |
609 | SvANY(sv) = new_XPVIV(); | |
463ee0b2 | 610 | SvPVX(sv) = pv; |
79072805 LW |
611 | SvCUR(sv) = cur; |
612 | SvLEN(sv) = len; | |
463ee0b2 | 613 | SvIVX(sv) = iv; |
79072805 | 614 | if (SvNIOK(sv)) |
a0d0e21e | 615 | (void)SvIOK_on(sv); |
79072805 LW |
616 | SvNOK_off(sv); |
617 | break; | |
618 | case SVt_PVNV: | |
619 | SvANY(sv) = new_XPVNV(); | |
463ee0b2 | 620 | SvPVX(sv) = pv; |
79072805 LW |
621 | SvCUR(sv) = cur; |
622 | SvLEN(sv) = len; | |
463ee0b2 LW |
623 | SvIVX(sv) = iv; |
624 | SvNVX(sv) = nv; | |
79072805 LW |
625 | break; |
626 | case SVt_PVMG: | |
627 | SvANY(sv) = new_XPVMG(); | |
463ee0b2 | 628 | SvPVX(sv) = pv; |
79072805 LW |
629 | SvCUR(sv) = cur; |
630 | SvLEN(sv) = len; | |
463ee0b2 LW |
631 | SvIVX(sv) = iv; |
632 | SvNVX(sv) = nv; | |
79072805 LW |
633 | SvMAGIC(sv) = magic; |
634 | SvSTASH(sv) = stash; | |
635 | break; | |
636 | case SVt_PVLV: | |
637 | SvANY(sv) = new_XPVLV(); | |
463ee0b2 | 638 | SvPVX(sv) = pv; |
79072805 LW |
639 | SvCUR(sv) = cur; |
640 | SvLEN(sv) = len; | |
463ee0b2 LW |
641 | SvIVX(sv) = iv; |
642 | SvNVX(sv) = nv; | |
79072805 LW |
643 | SvMAGIC(sv) = magic; |
644 | SvSTASH(sv) = stash; | |
645 | LvTARGOFF(sv) = 0; | |
646 | LvTARGLEN(sv) = 0; | |
647 | LvTARG(sv) = 0; | |
648 | LvTYPE(sv) = 0; | |
649 | break; | |
650 | case SVt_PVAV: | |
651 | SvANY(sv) = new_XPVAV(); | |
463ee0b2 LW |
652 | if (pv) |
653 | Safefree(pv); | |
2304df62 | 654 | SvPVX(sv) = 0; |
79072805 LW |
655 | AvMAX(sv) = 0; |
656 | AvFILL(sv) = 0; | |
463ee0b2 LW |
657 | SvIVX(sv) = 0; |
658 | SvNVX(sv) = 0.0; | |
659 | SvMAGIC(sv) = magic; | |
660 | SvSTASH(sv) = stash; | |
661 | AvALLOC(sv) = 0; | |
79072805 LW |
662 | AvARYLEN(sv) = 0; |
663 | AvFLAGS(sv) = 0; | |
664 | break; | |
665 | case SVt_PVHV: | |
666 | SvANY(sv) = new_XPVHV(); | |
463ee0b2 LW |
667 | if (pv) |
668 | Safefree(pv); | |
669 | SvPVX(sv) = 0; | |
670 | HvFILL(sv) = 0; | |
671 | HvMAX(sv) = 0; | |
672 | HvKEYS(sv) = 0; | |
673 | SvNVX(sv) = 0.0; | |
79072805 LW |
674 | SvMAGIC(sv) = magic; |
675 | SvSTASH(sv) = stash; | |
79072805 LW |
676 | HvRITER(sv) = 0; |
677 | HvEITER(sv) = 0; | |
678 | HvPMROOT(sv) = 0; | |
679 | HvNAME(sv) = 0; | |
79072805 LW |
680 | break; |
681 | case SVt_PVCV: | |
682 | SvANY(sv) = new_XPVCV(); | |
748a9306 | 683 | Zero(SvANY(sv), 1, XPVCV); |
463ee0b2 | 684 | SvPVX(sv) = pv; |
79072805 LW |
685 | SvCUR(sv) = cur; |
686 | SvLEN(sv) = len; | |
463ee0b2 LW |
687 | SvIVX(sv) = iv; |
688 | SvNVX(sv) = nv; | |
79072805 LW |
689 | SvMAGIC(sv) = magic; |
690 | SvSTASH(sv) = stash; | |
79072805 LW |
691 | break; |
692 | case SVt_PVGV: | |
693 | SvANY(sv) = new_XPVGV(); | |
463ee0b2 | 694 | SvPVX(sv) = pv; |
79072805 LW |
695 | SvCUR(sv) = cur; |
696 | SvLEN(sv) = len; | |
463ee0b2 LW |
697 | SvIVX(sv) = iv; |
698 | SvNVX(sv) = nv; | |
79072805 LW |
699 | SvMAGIC(sv) = magic; |
700 | SvSTASH(sv) = stash; | |
93a17b20 | 701 | GvGP(sv) = 0; |
79072805 LW |
702 | GvNAME(sv) = 0; |
703 | GvNAMELEN(sv) = 0; | |
704 | GvSTASH(sv) = 0; | |
705 | break; | |
706 | case SVt_PVBM: | |
707 | SvANY(sv) = new_XPVBM(); | |
463ee0b2 | 708 | SvPVX(sv) = pv; |
79072805 LW |
709 | SvCUR(sv) = cur; |
710 | SvLEN(sv) = len; | |
463ee0b2 LW |
711 | SvIVX(sv) = iv; |
712 | SvNVX(sv) = nv; | |
79072805 LW |
713 | SvMAGIC(sv) = magic; |
714 | SvSTASH(sv) = stash; | |
715 | BmRARE(sv) = 0; | |
716 | BmUSEFUL(sv) = 0; | |
717 | BmPREVIOUS(sv) = 0; | |
718 | break; | |
719 | case SVt_PVFM: | |
720 | SvANY(sv) = new_XPVFM(); | |
748a9306 | 721 | Zero(SvANY(sv), 1, XPVFM); |
463ee0b2 | 722 | SvPVX(sv) = pv; |
79072805 LW |
723 | SvCUR(sv) = cur; |
724 | SvLEN(sv) = len; | |
463ee0b2 LW |
725 | SvIVX(sv) = iv; |
726 | SvNVX(sv) = nv; | |
79072805 LW |
727 | SvMAGIC(sv) = magic; |
728 | SvSTASH(sv) = stash; | |
79072805 | 729 | break; |
8990e307 LW |
730 | case SVt_PVIO: |
731 | SvANY(sv) = new_XPVIO(); | |
748a9306 | 732 | Zero(SvANY(sv), 1, XPVIO); |
8990e307 LW |
733 | SvPVX(sv) = pv; |
734 | SvCUR(sv) = cur; | |
735 | SvLEN(sv) = len; | |
736 | SvIVX(sv) = iv; | |
737 | SvNVX(sv) = nv; | |
738 | SvMAGIC(sv) = magic; | |
739 | SvSTASH(sv) = stash; | |
85e6fe83 | 740 | IoPAGE_LEN(sv) = 60; |
8990e307 LW |
741 | break; |
742 | } | |
743 | SvFLAGS(sv) &= ~SVTYPEMASK; | |
744 | SvFLAGS(sv) |= mt; | |
79072805 LW |
745 | return TRUE; |
746 | } | |
747 | ||
a0d0e21e | 748 | #ifdef DEBUGGING |
79072805 LW |
749 | char * |
750 | sv_peek(sv) | |
751 | register SV *sv; | |
752 | { | |
753 | char *t = tokenbuf; | |
a0d0e21e | 754 | int unref = 0; |
79072805 LW |
755 | |
756 | retry: | |
757 | if (!sv) { | |
758 | strcpy(t, "VOID"); | |
a0d0e21e | 759 | goto finish; |
79072805 LW |
760 | } |
761 | else if (sv == (SV*)0x55555555 || SvTYPE(sv) == 'U') { | |
762 | strcpy(t, "WILD"); | |
a0d0e21e LW |
763 | goto finish; |
764 | } | |
765 | else if (sv == &sv_undef || sv == &sv_no || sv == &sv_yes) { | |
766 | if (sv == &sv_undef) { | |
767 | strcpy(t, "SV_UNDEF"); | |
768 | if (!(SvFLAGS(sv) & (SVf_OK|SVf_OOK|SVs_OBJECT| | |
769 | SVs_GMG|SVs_SMG|SVs_RMG)) && | |
770 | SvREADONLY(sv)) | |
771 | goto finish; | |
772 | } | |
773 | else if (sv == &sv_no) { | |
774 | strcpy(t, "SV_NO"); | |
775 | if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| | |
776 | SVs_GMG|SVs_SMG|SVs_RMG)) && | |
777 | !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| | |
778 | SVp_POK|SVp_NOK)) && | |
779 | SvCUR(sv) == 0 && | |
780 | SvNVX(sv) == 0.0) | |
781 | goto finish; | |
782 | } | |
783 | else { | |
784 | strcpy(t, "SV_YES"); | |
785 | if (!(SvFLAGS(sv) & (SVf_ROK|SVf_OOK|SVs_OBJECT| | |
786 | SVs_GMG|SVs_SMG|SVs_RMG)) && | |
787 | !(~SvFLAGS(sv) & (SVf_POK|SVf_NOK|SVf_READONLY| | |
788 | SVp_POK|SVp_NOK)) && | |
789 | SvCUR(sv) == 1 && | |
790 | SvPVX(sv) && *SvPVX(sv) == '1' && | |
791 | SvNVX(sv) == 1.0) | |
792 | goto finish; | |
793 | } | |
794 | t += strlen(t); | |
795 | *t++ = ':'; | |
79072805 | 796 | } |
a0d0e21e LW |
797 | else if (SvREFCNT(sv) == 0) { |
798 | *t++ = '('; | |
799 | unref++; | |
79072805 | 800 | } |
a0d0e21e LW |
801 | if (SvROK(sv)) { |
802 | *t++ = '\\'; | |
803 | if (t - tokenbuf + unref > 10) { | |
804 | strcpy(tokenbuf + unref + 3,"..."); | |
805 | goto finish; | |
79072805 | 806 | } |
a0d0e21e LW |
807 | sv = (SV*)SvRV(sv); |
808 | goto retry; | |
809 | } | |
810 | switch (SvTYPE(sv)) { | |
811 | default: | |
812 | strcpy(t,"FREED"); | |
813 | goto finish; | |
814 | ||
815 | case SVt_NULL: | |
816 | strcpy(t,"UNDEF"); | |
817 | return tokenbuf; | |
818 | case SVt_IV: | |
819 | strcpy(t,"IV"); | |
820 | break; | |
821 | case SVt_NV: | |
822 | strcpy(t,"NV"); | |
823 | break; | |
824 | case SVt_RV: | |
825 | strcpy(t,"RV"); | |
826 | break; | |
827 | case SVt_PV: | |
828 | strcpy(t,"PV"); | |
829 | break; | |
830 | case SVt_PVIV: | |
831 | strcpy(t,"PVIV"); | |
832 | break; | |
833 | case SVt_PVNV: | |
834 | strcpy(t,"PVNV"); | |
835 | break; | |
836 | case SVt_PVMG: | |
837 | strcpy(t,"PVMG"); | |
838 | break; | |
839 | case SVt_PVLV: | |
840 | strcpy(t,"PVLV"); | |
841 | break; | |
842 | case SVt_PVAV: | |
843 | strcpy(t,"AV"); | |
844 | break; | |
845 | case SVt_PVHV: | |
846 | strcpy(t,"HV"); | |
847 | break; | |
848 | case SVt_PVCV: | |
849 | if (CvGV(sv)) | |
850 | sprintf(t, "CV(%s)", GvNAME(CvGV(sv))); | |
851 | else | |
852 | strcpy(t, "CV()"); | |
853 | goto finish; | |
854 | case SVt_PVGV: | |
855 | strcpy(t,"GV"); | |
856 | break; | |
857 | case SVt_PVBM: | |
858 | strcpy(t,"BM"); | |
859 | break; | |
860 | case SVt_PVFM: | |
861 | strcpy(t,"FM"); | |
862 | break; | |
863 | case SVt_PVIO: | |
864 | strcpy(t,"IO"); | |
865 | break; | |
79072805 LW |
866 | } |
867 | t += strlen(t); | |
868 | ||
a0d0e21e | 869 | if (SvPOKp(sv)) { |
463ee0b2 | 870 | if (!SvPVX(sv)) |
a0d0e21e | 871 | strcpy(t, "(null)"); |
79072805 | 872 | if (SvOOK(sv)) |
2304df62 | 873 | sprintf(t,"(%ld+\"%.127s\")",(long)SvIVX(sv),SvPVX(sv)); |
79072805 | 874 | else |
2304df62 | 875 | sprintf(t,"(\"%.127s\")",SvPVX(sv)); |
79072805 | 876 | } |
a0d0e21e | 877 | else if (SvNOKp(sv)) |
463ee0b2 | 878 | sprintf(t,"(%g)",SvNVX(sv)); |
a0d0e21e | 879 | else if (SvIOKp(sv)) |
463ee0b2 | 880 | sprintf(t,"(%ld)",(long)SvIVX(sv)); |
79072805 LW |
881 | else |
882 | strcpy(t,"()"); | |
a0d0e21e LW |
883 | |
884 | finish: | |
885 | if (unref) { | |
886 | t += strlen(t); | |
887 | while (unref--) | |
888 | *t++ = ')'; | |
889 | *t = '\0'; | |
890 | } | |
79072805 LW |
891 | return tokenbuf; |
892 | } | |
a0d0e21e | 893 | #endif |
79072805 LW |
894 | |
895 | int | |
896 | sv_backoff(sv) | |
897 | register SV *sv; | |
898 | { | |
899 | assert(SvOOK(sv)); | |
463ee0b2 LW |
900 | if (SvIVX(sv)) { |
901 | char *s = SvPVX(sv); | |
902 | SvLEN(sv) += SvIVX(sv); | |
903 | SvPVX(sv) -= SvIVX(sv); | |
79072805 | 904 | SvIV_set(sv, 0); |
463ee0b2 | 905 | Move(s, SvPVX(sv), SvCUR(sv)+1, char); |
79072805 LW |
906 | } |
907 | SvFLAGS(sv) &= ~SVf_OOK; | |
a0d0e21e | 908 | return 0; |
79072805 LW |
909 | } |
910 | ||
911 | char * | |
912 | sv_grow(sv,newlen) | |
913 | register SV *sv; | |
914 | #ifndef DOSISH | |
915 | register I32 newlen; | |
916 | #else | |
917 | unsigned long newlen; | |
918 | #endif | |
919 | { | |
920 | register char *s; | |
921 | ||
922 | #ifdef MSDOS | |
923 | if (newlen >= 0x10000) { | |
924 | fprintf(stderr, "Allocation too large: %lx\n", newlen); | |
925 | my_exit(1); | |
926 | } | |
927 | #endif /* MSDOS */ | |
a0d0e21e LW |
928 | if (SvROK(sv)) |
929 | sv_unref(sv); | |
79072805 LW |
930 | if (SvTYPE(sv) < SVt_PV) { |
931 | sv_upgrade(sv, SVt_PV); | |
463ee0b2 | 932 | s = SvPVX(sv); |
79072805 LW |
933 | } |
934 | else if (SvOOK(sv)) { /* pv is offset? */ | |
935 | sv_backoff(sv); | |
463ee0b2 | 936 | s = SvPVX(sv); |
79072805 LW |
937 | if (newlen > SvLEN(sv)) |
938 | newlen += 10 * (newlen - SvCUR(sv)); /* avoid copy each time */ | |
939 | } | |
940 | else | |
463ee0b2 | 941 | s = SvPVX(sv); |
79072805 | 942 | if (newlen > SvLEN(sv)) { /* need more room? */ |
85e6fe83 | 943 | if (SvLEN(sv) && s) |
79072805 LW |
944 | Renew(s,newlen,char); |
945 | else | |
946 | New(703,s,newlen,char); | |
947 | SvPV_set(sv, s); | |
948 | SvLEN_set(sv, newlen); | |
949 | } | |
950 | return s; | |
951 | } | |
952 | ||
953 | void | |
954 | sv_setiv(sv,i) | |
955 | register SV *sv; | |
a0d0e21e | 956 | IV i; |
79072805 | 957 | { |
ed6116ce | 958 | if (SvTHINKFIRST(sv)) { |
8990e307 | 959 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
960 | croak(no_modify); |
961 | if (SvROK(sv)) | |
962 | sv_unref(sv); | |
963 | } | |
463ee0b2 LW |
964 | switch (SvTYPE(sv)) { |
965 | case SVt_NULL: | |
79072805 | 966 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
967 | break; |
968 | case SVt_NV: | |
969 | sv_upgrade(sv, SVt_PVNV); | |
970 | break; | |
ed6116ce | 971 | case SVt_RV: |
463ee0b2 | 972 | case SVt_PV: |
79072805 | 973 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 | 974 | break; |
a0d0e21e LW |
975 | |
976 | case SVt_PVGV: | |
977 | if (SvFAKE(sv)) { | |
978 | sv_unglob(sv); | |
979 | break; | |
980 | } | |
981 | /* FALL THROUGH */ | |
982 | case SVt_PVAV: | |
983 | case SVt_PVHV: | |
984 | case SVt_PVCV: | |
985 | case SVt_PVFM: | |
986 | case SVt_PVIO: | |
987 | croak("Can't coerce %s to integer in %s", sv_reftype(sv,0), | |
988 | op_name[op->op_type]); | |
463ee0b2 LW |
989 | } |
990 | SvIVX(sv) = i; | |
a0d0e21e | 991 | (void)SvIOK_only(sv); /* validate number */ |
463ee0b2 | 992 | SvTAINT(sv); |
79072805 LW |
993 | } |
994 | ||
995 | void | |
996 | sv_setnv(sv,num) | |
997 | register SV *sv; | |
998 | double num; | |
999 | { | |
ed6116ce | 1000 | if (SvTHINKFIRST(sv)) { |
8990e307 | 1001 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
1002 | croak(no_modify); |
1003 | if (SvROK(sv)) | |
1004 | sv_unref(sv); | |
1005 | } | |
a0d0e21e LW |
1006 | switch (SvTYPE(sv)) { |
1007 | case SVt_NULL: | |
1008 | case SVt_IV: | |
79072805 | 1009 | sv_upgrade(sv, SVt_NV); |
a0d0e21e LW |
1010 | break; |
1011 | case SVt_NV: | |
1012 | case SVt_RV: | |
1013 | case SVt_PV: | |
1014 | case SVt_PVIV: | |
79072805 | 1015 | sv_upgrade(sv, SVt_PVNV); |
a0d0e21e LW |
1016 | /* FALL THROUGH */ |
1017 | case SVt_PVNV: | |
1018 | case SVt_PVMG: | |
1019 | case SVt_PVBM: | |
1020 | case SVt_PVLV: | |
1021 | if (SvOOK(sv)) | |
1022 | (void)SvOOK_off(sv); | |
1023 | break; | |
1024 | case SVt_PVGV: | |
1025 | if (SvFAKE(sv)) { | |
1026 | sv_unglob(sv); | |
1027 | break; | |
1028 | } | |
1029 | /* FALL THROUGH */ | |
1030 | case SVt_PVAV: | |
1031 | case SVt_PVHV: | |
1032 | case SVt_PVCV: | |
1033 | case SVt_PVFM: | |
1034 | case SVt_PVIO: | |
1035 | croak("Can't coerce %s to number in %s", sv_reftype(sv,0), | |
1036 | op_name[op->op_type]); | |
79072805 | 1037 | } |
463ee0b2 | 1038 | SvNVX(sv) = num; |
a0d0e21e | 1039 | (void)SvNOK_only(sv); /* validate number */ |
463ee0b2 | 1040 | SvTAINT(sv); |
79072805 LW |
1041 | } |
1042 | ||
a0d0e21e LW |
1043 | static void |
1044 | not_a_number(sv) | |
1045 | SV *sv; | |
1046 | { | |
1047 | char tmpbuf[64]; | |
1048 | char *d = tmpbuf; | |
1049 | char *s; | |
1050 | int i; | |
1051 | ||
1052 | for (s = SvPVX(sv), i = 50; *s && i; s++,i--) { | |
1053 | int ch = *s; | |
1054 | if (ch & 128 && !isprint(ch)) { | |
1055 | *d++ = 'M'; | |
1056 | *d++ = '-'; | |
1057 | ch &= 127; | |
1058 | } | |
1059 | if (isprint(ch)) | |
1060 | *d++ = ch; | |
1061 | else { | |
1062 | *d++ = '^'; | |
1063 | *d++ = ch ^ 64; | |
1064 | } | |
1065 | } | |
1066 | if (*s) { | |
1067 | *d++ = '.'; | |
1068 | *d++ = '.'; | |
1069 | *d++ = '.'; | |
1070 | } | |
1071 | *d = '\0'; | |
1072 | ||
1073 | if (op) | |
1074 | warn("Argument \"%s\" isn't numeric for %s", tmpbuf, | |
1075 | op_name[op->op_type]); | |
1076 | else | |
1077 | warn("Argument \"%s\" isn't numeric", tmpbuf); | |
1078 | } | |
1079 | ||
1080 | IV | |
79072805 LW |
1081 | sv_2iv(sv) |
1082 | register SV *sv; | |
1083 | { | |
1084 | if (!sv) | |
1085 | return 0; | |
8990e307 | 1086 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1087 | mg_get(sv); |
1088 | if (SvIOKp(sv)) | |
1089 | return SvIVX(sv); | |
748a9306 LW |
1090 | if (SvNOKp(sv)) { |
1091 | if (SvNVX(sv) < 0.0) | |
1092 | return I_V(SvNVX(sv)); | |
1093 | else | |
5d94fbed | 1094 | return (IV) U_V(SvNVX(sv)); |
748a9306 | 1095 | } |
a0d0e21e LW |
1096 | if (SvPOKp(sv) && SvLEN(sv)) { |
1097 | if (dowarn && !looks_like_number(sv)) | |
1098 | not_a_number(sv); | |
1099 | return (IV)atol(SvPVX(sv)); | |
1100 | } | |
16d20bd9 AD |
1101 | if (!SvROK(sv)) { |
1102 | return 0; | |
1103 | } | |
463ee0b2 | 1104 | } |
ed6116ce | 1105 | if (SvTHINKFIRST(sv)) { |
a0d0e21e LW |
1106 | if (SvROK(sv)) { |
1107 | #ifdef OVERLOAD | |
1108 | SV* tmpstr; | |
1109 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv, numer))) | |
1110 | return SvIV(tmpstr); | |
1111 | #endif /* OVERLOAD */ | |
1112 | return (IV)SvRV(sv); | |
1113 | } | |
ed6116ce | 1114 | if (SvREADONLY(sv)) { |
748a9306 LW |
1115 | if (SvNOKp(sv)) { |
1116 | if (SvNVX(sv) < 0.0) | |
1117 | return I_V(SvNVX(sv)); | |
1118 | else | |
5d94fbed | 1119 | return (IV) U_V(SvNVX(sv)); |
748a9306 LW |
1120 | } |
1121 | if (SvPOKp(sv) && SvLEN(sv)) { | |
a0d0e21e LW |
1122 | if (dowarn && !looks_like_number(sv)) |
1123 | not_a_number(sv); | |
1124 | return (IV)atol(SvPVX(sv)); | |
1125 | } | |
ed6116ce | 1126 | if (dowarn) |
8990e307 | 1127 | warn(warn_uninit); |
ed6116ce LW |
1128 | return 0; |
1129 | } | |
79072805 | 1130 | } |
463ee0b2 | 1131 | switch (SvTYPE(sv)) { |
463ee0b2 | 1132 | case SVt_NULL: |
79072805 | 1133 | sv_upgrade(sv, SVt_IV); |
463ee0b2 LW |
1134 | return SvIVX(sv); |
1135 | case SVt_PV: | |
79072805 | 1136 | sv_upgrade(sv, SVt_PVIV); |
463ee0b2 LW |
1137 | break; |
1138 | case SVt_NV: | |
1139 | sv_upgrade(sv, SVt_PVNV); | |
1140 | break; | |
1141 | } | |
748a9306 LW |
1142 | if (SvNOKp(sv)) { |
1143 | if (SvNVX(sv) < 0.0) | |
1144 | SvIVX(sv) = I_V(SvNVX(sv)); | |
1145 | else | |
5d94fbed | 1146 | SvIVX(sv) = (IV) U_V(SvNVX(sv)); |
748a9306 LW |
1147 | } |
1148 | else if (SvPOKp(sv) && SvLEN(sv)) { | |
a0d0e21e LW |
1149 | if (dowarn && !looks_like_number(sv)) |
1150 | not_a_number(sv); | |
1151 | SvIVX(sv) = (IV)atol(SvPVX(sv)); | |
93a17b20 | 1152 | } |
79072805 | 1153 | else { |
a0d0e21e | 1154 | if (dowarn && !localizing) |
8990e307 | 1155 | warn(warn_uninit); |
a0d0e21e | 1156 | return 0; |
79072805 | 1157 | } |
a0d0e21e LW |
1158 | (void)SvIOK_on(sv); |
1159 | DEBUG_c(fprintf(stderr,"0x%lx 2iv(%ld)\n", | |
1160 | (unsigned long)sv,(long)SvIVX(sv))); | |
463ee0b2 | 1161 | return SvIVX(sv); |
79072805 LW |
1162 | } |
1163 | ||
1164 | double | |
1165 | sv_2nv(sv) | |
1166 | register SV *sv; | |
1167 | { | |
1168 | if (!sv) | |
1169 | return 0.0; | |
8990e307 | 1170 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1171 | mg_get(sv); |
1172 | if (SvNOKp(sv)) | |
1173 | return SvNVX(sv); | |
a0d0e21e | 1174 | if (SvPOKp(sv) && SvLEN(sv)) { |
748a9306 | 1175 | if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) |
a0d0e21e | 1176 | not_a_number(sv); |
463ee0b2 | 1177 | return atof(SvPVX(sv)); |
a0d0e21e | 1178 | } |
463ee0b2 LW |
1179 | if (SvIOKp(sv)) |
1180 | return (double)SvIVX(sv); | |
16d20bd9 AD |
1181 | if (!SvROK(sv)) { |
1182 | return 0; | |
1183 | } | |
463ee0b2 | 1184 | } |
ed6116ce | 1185 | if (SvTHINKFIRST(sv)) { |
a0d0e21e LW |
1186 | if (SvROK(sv)) { |
1187 | #ifdef OVERLOAD | |
1188 | SV* tmpstr; | |
1189 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,numer))) | |
1190 | return SvNV(tmpstr); | |
1191 | #endif /* OVERLOAD */ | |
1192 | return (double)(unsigned long)SvRV(sv); | |
1193 | } | |
ed6116ce | 1194 | if (SvREADONLY(sv)) { |
748a9306 LW |
1195 | if (SvPOKp(sv) && SvLEN(sv)) { |
1196 | if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) | |
a0d0e21e | 1197 | not_a_number(sv); |
ed6116ce | 1198 | return atof(SvPVX(sv)); |
a0d0e21e | 1199 | } |
748a9306 | 1200 | if (SvIOKp(sv)) |
8990e307 | 1201 | return (double)SvIVX(sv); |
ed6116ce | 1202 | if (dowarn) |
8990e307 | 1203 | warn(warn_uninit); |
ed6116ce LW |
1204 | return 0.0; |
1205 | } | |
79072805 LW |
1206 | } |
1207 | if (SvTYPE(sv) < SVt_NV) { | |
463ee0b2 LW |
1208 | if (SvTYPE(sv) == SVt_IV) |
1209 | sv_upgrade(sv, SVt_PVNV); | |
1210 | else | |
1211 | sv_upgrade(sv, SVt_NV); | |
a0d0e21e | 1212 | DEBUG_c(fprintf(stderr,"0x%lx num(%g)\n",(unsigned long)sv,SvNVX(sv))); |
79072805 LW |
1213 | } |
1214 | else if (SvTYPE(sv) < SVt_PVNV) | |
1215 | sv_upgrade(sv, SVt_PVNV); | |
748a9306 LW |
1216 | if (SvIOKp(sv) && |
1217 | (!SvPOKp(sv) || !strchr(SvPVX(sv),'.') || !looks_like_number(sv))) | |
93a17b20 | 1218 | { |
463ee0b2 | 1219 | SvNVX(sv) = (double)SvIVX(sv); |
93a17b20 | 1220 | } |
748a9306 LW |
1221 | else if (SvPOKp(sv) && SvLEN(sv)) { |
1222 | if (dowarn && !SvIOKp(sv) && !looks_like_number(sv)) | |
a0d0e21e | 1223 | not_a_number(sv); |
463ee0b2 | 1224 | SvNVX(sv) = atof(SvPVX(sv)); |
93a17b20 | 1225 | } |
79072805 | 1226 | else { |
a0d0e21e | 1227 | if (dowarn && !localizing) |
8990e307 | 1228 | warn(warn_uninit); |
a0d0e21e | 1229 | return 0.0; |
79072805 LW |
1230 | } |
1231 | SvNOK_on(sv); | |
a0d0e21e | 1232 | DEBUG_c(fprintf(stderr,"0x%lx 2nv(%g)\n",(unsigned long)sv,SvNVX(sv))); |
463ee0b2 | 1233 | return SvNVX(sv); |
79072805 LW |
1234 | } |
1235 | ||
1236 | char * | |
463ee0b2 | 1237 | sv_2pv(sv, lp) |
79072805 | 1238 | register SV *sv; |
463ee0b2 | 1239 | STRLEN *lp; |
79072805 LW |
1240 | { |
1241 | register char *s; | |
1242 | int olderrno; | |
1243 | ||
463ee0b2 LW |
1244 | if (!sv) { |
1245 | *lp = 0; | |
1246 | return ""; | |
1247 | } | |
8990e307 | 1248 | if (SvGMAGICAL(sv)) { |
463ee0b2 LW |
1249 | mg_get(sv); |
1250 | if (SvPOKp(sv)) { | |
1251 | *lp = SvCUR(sv); | |
1252 | return SvPVX(sv); | |
1253 | } | |
1254 | if (SvIOKp(sv)) { | |
a0d0e21e LW |
1255 | (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); |
1256 | goto tokensave; | |
463ee0b2 LW |
1257 | } |
1258 | if (SvNOKp(sv)) { | |
a0d0e21e LW |
1259 | Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); |
1260 | goto tokensave; | |
463ee0b2 | 1261 | } |
16d20bd9 AD |
1262 | if (!SvROK(sv)) { |
1263 | *lp = 0; | |
1264 | return ""; | |
1265 | } | |
463ee0b2 | 1266 | } |
ed6116ce LW |
1267 | if (SvTHINKFIRST(sv)) { |
1268 | if (SvROK(sv)) { | |
a0d0e21e LW |
1269 | #ifdef OVERLOAD |
1270 | SV* tmpstr; | |
1271 | if (SvAMAGIC(sv) && (tmpstr=AMG_CALLun(sv,string))) | |
1272 | return SvPV(tmpstr,*lp); | |
1273 | #endif /* OVERLOAD */ | |
ed6116ce LW |
1274 | sv = (SV*)SvRV(sv); |
1275 | if (!sv) | |
1276 | s = "NULLREF"; | |
1277 | else { | |
1278 | switch (SvTYPE(sv)) { | |
1279 | case SVt_NULL: | |
1280 | case SVt_IV: | |
1281 | case SVt_NV: | |
1282 | case SVt_RV: | |
1283 | case SVt_PV: | |
1284 | case SVt_PVIV: | |
1285 | case SVt_PVNV: | |
1286 | case SVt_PVBM: | |
1287 | case SVt_PVMG: s = "SCALAR"; break; | |
1288 | case SVt_PVLV: s = "LVALUE"; break; | |
1289 | case SVt_PVAV: s = "ARRAY"; break; | |
1290 | case SVt_PVHV: s = "HASH"; break; | |
1291 | case SVt_PVCV: s = "CODE"; break; | |
1292 | case SVt_PVGV: s = "GLOB"; break; | |
1293 | case SVt_PVFM: s = "FORMATLINE"; break; | |
8990e307 | 1294 | case SVt_PVIO: s = "FILEHANDLE"; break; |
ed6116ce LW |
1295 | default: s = "UNKNOWN"; break; |
1296 | } | |
1297 | if (SvOBJECT(sv)) | |
1298 | sprintf(tokenbuf, "%s=%s(0x%lx)", | |
1299 | HvNAME(SvSTASH(sv)), s, (unsigned long)sv); | |
1300 | else | |
1301 | sprintf(tokenbuf, "%s(0x%lx)", s, (unsigned long)sv); | |
a0d0e21e | 1302 | goto tokensaveref; |
463ee0b2 | 1303 | } |
ed6116ce LW |
1304 | *lp = strlen(s); |
1305 | return s; | |
79072805 | 1306 | } |
ed6116ce | 1307 | if (SvREADONLY(sv)) { |
748a9306 | 1308 | if (SvNOKp(sv)) { |
a0d0e21e LW |
1309 | Gconvert(SvNVX(sv), DBL_DIG, 0, tokenbuf); |
1310 | goto tokensave; | |
ed6116ce | 1311 | } |
8bb9dbe4 LW |
1312 | if (SvIOKp(sv)) { |
1313 | (void)sprintf(tokenbuf,"%ld",(long)SvIVX(sv)); | |
1314 | goto tokensave; | |
1315 | } | |
ed6116ce | 1316 | if (dowarn) |
8990e307 | 1317 | warn(warn_uninit); |
ed6116ce LW |
1318 | *lp = 0; |
1319 | return ""; | |
79072805 | 1320 | } |
79072805 LW |
1321 | } |
1322 | if (!SvUPGRADE(sv, SVt_PV)) | |
1323 | return 0; | |
748a9306 | 1324 | if (SvNOKp(sv)) { |
79072805 LW |
1325 | if (SvTYPE(sv) < SVt_PVNV) |
1326 | sv_upgrade(sv, SVt_PVNV); | |
1327 | SvGROW(sv, 28); | |
463ee0b2 | 1328 | s = SvPVX(sv); |
79072805 | 1329 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
79072805 | 1330 | #ifdef apollo |
463ee0b2 | 1331 | if (SvNVX(sv) == 0.0) |
79072805 LW |
1332 | (void)strcpy(s,"0"); |
1333 | else | |
1334 | #endif /*apollo*/ | |
a0d0e21e | 1335 | Gconvert(SvNVX(sv), DBL_DIG, 0, s); |
79072805 | 1336 | errno = olderrno; |
a0d0e21e LW |
1337 | #ifdef FIXNEGATIVEZERO |
1338 | if (*s == '-' && s[1] == '0' && !s[2]) | |
1339 | strcpy(s,"0"); | |
1340 | #endif | |
79072805 LW |
1341 | while (*s) s++; |
1342 | #ifdef hcx | |
1343 | if (s[-1] == '.') | |
1344 | s--; | |
1345 | #endif | |
1346 | } | |
748a9306 | 1347 | else if (SvIOKp(sv)) { |
79072805 LW |
1348 | if (SvTYPE(sv) < SVt_PVIV) |
1349 | sv_upgrade(sv, SVt_PVIV); | |
1350 | SvGROW(sv, 11); | |
463ee0b2 | 1351 | s = SvPVX(sv); |
79072805 | 1352 | olderrno = errno; /* some Xenix systems wipe out errno here */ |
a0d0e21e | 1353 | (void)sprintf(s,"%ld",(long)SvIVX(sv)); |
79072805 LW |
1354 | errno = olderrno; |
1355 | while (*s) s++; | |
1356 | } | |
1357 | else { | |
a0d0e21e | 1358 | if (dowarn && !localizing) |
8990e307 | 1359 | warn(warn_uninit); |
a0d0e21e LW |
1360 | *lp = 0; |
1361 | return ""; | |
79072805 LW |
1362 | } |
1363 | *s = '\0'; | |
463ee0b2 LW |
1364 | *lp = s - SvPVX(sv); |
1365 | SvCUR_set(sv, *lp); | |
79072805 | 1366 | SvPOK_on(sv); |
a0d0e21e | 1367 | DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n",(unsigned long)sv,SvPVX(sv))); |
463ee0b2 | 1368 | return SvPVX(sv); |
a0d0e21e LW |
1369 | |
1370 | tokensave: | |
1371 | if (SvROK(sv)) { /* XXX Skip this when sv_pvn_force calls */ | |
1372 | /* Sneaky stuff here */ | |
1373 | ||
1374 | tokensaveref: | |
1375 | sv = sv_newmortal(); | |
1376 | *lp = strlen(tokenbuf); | |
1377 | sv_setpvn(sv, tokenbuf, *lp); | |
1378 | return SvPVX(sv); | |
1379 | } | |
1380 | else { | |
1381 | STRLEN len; | |
1382 | ||
1383 | #ifdef FIXNEGATIVEZERO | |
1384 | if (*tokenbuf == '-' && tokenbuf[1] == '0' && !tokenbuf[2]) | |
1385 | strcpy(tokenbuf,"0"); | |
1386 | #endif | |
1387 | (void)SvUPGRADE(sv, SVt_PV); | |
1388 | len = *lp = strlen(tokenbuf); | |
1389 | s = SvGROW(sv, len + 1); | |
1390 | SvCUR_set(sv, len); | |
1391 | (void)strcpy(s, tokenbuf); | |
1392 | /* NO SvPOK_on(sv) here! */ | |
1393 | return s; | |
1394 | } | |
463ee0b2 LW |
1395 | } |
1396 | ||
1397 | /* This function is only called on magical items */ | |
1398 | bool | |
1399 | sv_2bool(sv) | |
1400 | register SV *sv; | |
1401 | { | |
8990e307 | 1402 | if (SvGMAGICAL(sv)) |
463ee0b2 LW |
1403 | mg_get(sv); |
1404 | ||
a0d0e21e LW |
1405 | if (!SvOK(sv)) |
1406 | return 0; | |
1407 | if (SvROK(sv)) { | |
1408 | #ifdef OVERLOAD | |
1409 | { | |
1410 | SV* tmpsv; | |
1411 | if (SvAMAGIC(sv) && (tmpsv = AMG_CALLun(sv,bool_))) | |
1412 | return SvTRUE(tmpsv); | |
1413 | } | |
1414 | #endif /* OVERLOAD */ | |
1415 | return SvRV(sv) != 0; | |
1416 | } | |
463ee0b2 LW |
1417 | if (SvPOKp(sv)) { |
1418 | register XPV* Xpv; | |
1419 | if ((Xpv = (XPV*)SvANY(sv)) && | |
1420 | (*Xpv->xpv_pv > '0' || | |
1421 | Xpv->xpv_cur > 1 || | |
1422 | (Xpv->xpv_cur && *Xpv->xpv_pv != '0'))) | |
1423 | return 1; | |
1424 | else | |
1425 | return 0; | |
1426 | } | |
1427 | else { | |
1428 | if (SvIOKp(sv)) | |
1429 | return SvIVX(sv) != 0; | |
1430 | else { | |
1431 | if (SvNOKp(sv)) | |
1432 | return SvNVX(sv) != 0.0; | |
1433 | else | |
1434 | return FALSE; | |
1435 | } | |
1436 | } | |
79072805 LW |
1437 | } |
1438 | ||
1439 | /* Note: sv_setsv() should not be called with a source string that needs | |
463ee0b2 | 1440 | * to be reused, since it may destroy the source string if it is marked |
79072805 LW |
1441 | * as temporary. |
1442 | */ | |
1443 | ||
1444 | void | |
1445 | sv_setsv(dstr,sstr) | |
1446 | SV *dstr; | |
1447 | register SV *sstr; | |
1448 | { | |
8990e307 LW |
1449 | register U32 sflags; |
1450 | register int dtype; | |
1451 | register int stype; | |
463ee0b2 | 1452 | |
79072805 LW |
1453 | if (sstr == dstr) |
1454 | return; | |
ed6116ce | 1455 | if (SvTHINKFIRST(dstr)) { |
8990e307 | 1456 | if (SvREADONLY(dstr) && curcop != &compiling) |
ed6116ce LW |
1457 | croak(no_modify); |
1458 | if (SvROK(dstr)) | |
1459 | sv_unref(dstr); | |
1460 | } | |
79072805 LW |
1461 | if (!sstr) |
1462 | sstr = &sv_undef; | |
8990e307 LW |
1463 | stype = SvTYPE(sstr); |
1464 | dtype = SvTYPE(dstr); | |
79072805 | 1465 | |
8e07c86e AD |
1466 | if (dtype == SVt_PVGV && (SvFLAGS(dstr) & SVf_FAKE)) { |
1467 | sv_unglob(dstr); /* so fake GLOB won't perpetuate */ | |
4633a7c4 LW |
1468 | sv_setpvn(dstr, "", 0); |
1469 | (void)SvPOK_only(dstr); | |
8e07c86e AD |
1470 | dtype = SvTYPE(dstr); |
1471 | } | |
1472 | ||
a0d0e21e LW |
1473 | #ifdef OVERLOAD |
1474 | SvAMAGIC_off(dstr); | |
1475 | #endif /* OVERLOAD */ | |
463ee0b2 | 1476 | /* There's a lot of redundancy below but we're going for speed here */ |
79072805 | 1477 | |
8990e307 | 1478 | switch (stype) { |
79072805 | 1479 | case SVt_NULL: |
a0d0e21e | 1480 | (void)SvOK_off(dstr); |
79072805 | 1481 | return; |
463ee0b2 | 1482 | case SVt_IV: |
8990e307 LW |
1483 | if (dtype <= SVt_PV) { |
1484 | if (dtype < SVt_IV) | |
1485 | sv_upgrade(dstr, SVt_IV); | |
8990e307 LW |
1486 | else if (dtype == SVt_NV) |
1487 | sv_upgrade(dstr, SVt_PVNV); | |
a0d0e21e LW |
1488 | else if (dtype <= SVt_PV) |
1489 | sv_upgrade(dstr, SVt_PVIV); | |
8990e307 | 1490 | } |
463ee0b2 LW |
1491 | break; |
1492 | case SVt_NV: | |
8990e307 LW |
1493 | if (dtype <= SVt_PVIV) { |
1494 | if (dtype < SVt_NV) | |
1495 | sv_upgrade(dstr, SVt_NV); | |
8990e307 LW |
1496 | else if (dtype == SVt_PVIV) |
1497 | sv_upgrade(dstr, SVt_PVNV); | |
a0d0e21e LW |
1498 | else if (dtype <= SVt_PV) |
1499 | sv_upgrade(dstr, SVt_PVNV); | |
8990e307 | 1500 | } |
463ee0b2 | 1501 | break; |
ed6116ce | 1502 | case SVt_RV: |
8990e307 | 1503 | if (dtype < SVt_RV) |
ed6116ce | 1504 | sv_upgrade(dstr, SVt_RV); |
ed6116ce | 1505 | break; |
463ee0b2 | 1506 | case SVt_PV: |
8990e307 | 1507 | if (dtype < SVt_PV) |
463ee0b2 | 1508 | sv_upgrade(dstr, SVt_PV); |
463ee0b2 LW |
1509 | break; |
1510 | case SVt_PVIV: | |
8990e307 | 1511 | if (dtype < SVt_PVIV) |
463ee0b2 | 1512 | sv_upgrade(dstr, SVt_PVIV); |
463ee0b2 LW |
1513 | break; |
1514 | case SVt_PVNV: | |
8990e307 | 1515 | if (dtype < SVt_PVNV) |
463ee0b2 | 1516 | sv_upgrade(dstr, SVt_PVNV); |
463ee0b2 | 1517 | break; |
4633a7c4 LW |
1518 | |
1519 | case SVt_PVLV: | |
1520 | sv_upgrade(dstr, SVt_PVNV); | |
1521 | break; | |
1522 | ||
1523 | case SVt_PVAV: | |
1524 | case SVt_PVHV: | |
1525 | case SVt_PVCV: | |
1526 | case SVt_PVFM: | |
1527 | case SVt_PVIO: | |
1528 | if (op) | |
1529 | croak("Bizarre copy of %s in %s", sv_reftype(sstr, 0), | |
1530 | op_name[op->op_type]); | |
1531 | else | |
1532 | croak("Bizarre copy of %s", sv_reftype(sstr, 0)); | |
1533 | break; | |
1534 | ||
79072805 | 1535 | case SVt_PVGV: |
8990e307 | 1536 | if (dtype <= SVt_PVGV) { |
4633a7c4 LW |
1537 | if (dtype == SVt_PVGV) |
1538 | GvFLAGS(sstr) |= GVf_IMPORTED; | |
1539 | else { | |
a0d0e21e LW |
1540 | char *name = GvNAME(sstr); |
1541 | STRLEN len = GvNAMELEN(sstr); | |
463ee0b2 | 1542 | sv_upgrade(dstr, SVt_PVGV); |
a0d0e21e LW |
1543 | sv_magic(dstr, dstr, '*', name, len); |
1544 | GvSTASH(dstr) = GvSTASH(sstr); | |
1545 | GvNAME(dstr) = savepvn(name, len); | |
1546 | GvNAMELEN(dstr) = len; | |
1547 | SvFAKE_on(dstr); /* can coerce to non-glob */ | |
1548 | } | |
1549 | (void)SvOK_off(dstr); | |
79072805 LW |
1550 | if (GvGP(dstr)) |
1551 | gp_free(dstr); | |
1552 | GvGP(dstr) = gp_ref(GvGP(sstr)); | |
8990e307 | 1553 | SvTAINT(dstr); |
a0d0e21e | 1554 | GvFLAGS(dstr) &= ~GVf_INTRO; /* one-shot flag */ |
748a9306 | 1555 | SvMULTI_on(dstr); |
79072805 LW |
1556 | return; |
1557 | } | |
1558 | /* FALL THROUGH */ | |
1559 | ||
1560 | default: | |
8990e307 LW |
1561 | if (dtype < stype) |
1562 | sv_upgrade(dstr, stype); | |
1563 | if (SvGMAGICAL(sstr)) | |
79072805 | 1564 | mg_get(sstr); |
79072805 LW |
1565 | } |
1566 | ||
8990e307 LW |
1567 | sflags = SvFLAGS(sstr); |
1568 | ||
1569 | if (sflags & SVf_ROK) { | |
1570 | if (dtype >= SVt_PV) { | |
1571 | if (dtype == SVt_PVGV) { | |
1572 | SV *sref = SvREFCNT_inc(SvRV(sstr)); | |
1573 | SV *dref = 0; | |
a0d0e21e LW |
1574 | int intro = GvFLAGS(dstr) & GVf_INTRO; |
1575 | ||
1576 | if (intro) { | |
1577 | GP *gp; | |
1578 | GvGP(dstr)->gp_refcnt--; | |
1579 | Newz(602,gp, 1, GP); | |
1580 | GvGP(dstr) = gp; | |
1581 | GvREFCNT(dstr) = 1; | |
1582 | GvSV(dstr) = NEWSV(72,0); | |
1583 | GvLINE(dstr) = curcop->cop_line; | |
1584 | GvEGV(dstr) = dstr; | |
1585 | GvFLAGS(dstr) &= ~GVf_INTRO; /* one-shot flag */ | |
1586 | } | |
1587 | SvMULTI_on(dstr); | |
8990e307 LW |
1588 | switch (SvTYPE(sref)) { |
1589 | case SVt_PVAV: | |
a0d0e21e LW |
1590 | if (intro) |
1591 | SAVESPTR(GvAV(dstr)); | |
1592 | else | |
1593 | dref = (SV*)GvAV(dstr); | |
8990e307 LW |
1594 | GvAV(dstr) = (AV*)sref; |
1595 | break; | |
1596 | case SVt_PVHV: | |
a0d0e21e LW |
1597 | if (intro) |
1598 | SAVESPTR(GvHV(dstr)); | |
1599 | else | |
1600 | dref = (SV*)GvHV(dstr); | |
8990e307 LW |
1601 | GvHV(dstr) = (HV*)sref; |
1602 | break; | |
1603 | case SVt_PVCV: | |
a0d0e21e LW |
1604 | if (intro) |
1605 | SAVESPTR(GvCV(dstr)); | |
748a9306 LW |
1606 | else { |
1607 | CV* cv = GvCV(dstr); | |
4633a7c4 LW |
1608 | if (cv) { |
1609 | dref = (SV*)cv; | |
1610 | if (dowarn && sref != dref && | |
1611 | !GvCVGEN((GV*)dstr) && | |
1612 | (CvROOT(cv) || CvXSUB(cv)) ) | |
1613 | warn("Subroutine %s redefined", | |
1614 | GvENAME((GV*)dstr)); | |
1615 | SvFAKE_on(cv); | |
1616 | } | |
748a9306 | 1617 | } |
8990e307 LW |
1618 | GvCV(dstr) = (CV*)sref; |
1619 | break; | |
1620 | default: | |
a0d0e21e LW |
1621 | if (intro) |
1622 | SAVESPTR(GvSV(dstr)); | |
1623 | else | |
1624 | dref = (SV*)GvSV(dstr); | |
8990e307 LW |
1625 | GvSV(dstr) = sref; |
1626 | break; | |
1627 | } | |
4633a7c4 LW |
1628 | if (dref != sref) |
1629 | GvFLAGS(dstr) |= GVf_IMPORTED; /* crude */ | |
8990e307 LW |
1630 | if (dref) |
1631 | SvREFCNT_dec(dref); | |
a0d0e21e LW |
1632 | if (intro) |
1633 | SAVEFREESV(sref); | |
8990e307 LW |
1634 | SvTAINT(dstr); |
1635 | return; | |
1636 | } | |
a0d0e21e | 1637 | if (SvPVX(dstr)) { |
8990e307 | 1638 | Safefree(SvPVX(dstr)); |
a0d0e21e LW |
1639 | SvLEN(dstr)=SvCUR(dstr)=0; |
1640 | } | |
8990e307 | 1641 | } |
a0d0e21e | 1642 | (void)SvOK_off(dstr); |
8990e307 | 1643 | SvRV(dstr) = SvREFCNT_inc(SvRV(sstr)); |
ed6116ce | 1644 | SvROK_on(dstr); |
8990e307 | 1645 | if (sflags & SVp_NOK) { |
ed6116ce LW |
1646 | SvNOK_on(dstr); |
1647 | SvNVX(dstr) = SvNVX(sstr); | |
1648 | } | |
8990e307 | 1649 | if (sflags & SVp_IOK) { |
a0d0e21e | 1650 | (void)SvIOK_on(dstr); |
ed6116ce LW |
1651 | SvIVX(dstr) = SvIVX(sstr); |
1652 | } | |
a0d0e21e LW |
1653 | #ifdef OVERLOAD |
1654 | if (SvAMAGIC(sstr)) { | |
1655 | SvAMAGIC_on(dstr); | |
1656 | } | |
1657 | #endif /* OVERLOAD */ | |
ed6116ce | 1658 | } |
8990e307 | 1659 | else if (sflags & SVp_POK) { |
79072805 LW |
1660 | |
1661 | /* | |
1662 | * Check to see if we can just swipe the string. If so, it's a | |
1663 | * possible small lose on short strings, but a big win on long ones. | |
463ee0b2 LW |
1664 | * It might even be a win on short strings if SvPVX(dstr) |
1665 | * has to be allocated and SvPVX(sstr) has to be freed. | |
79072805 LW |
1666 | */ |
1667 | ||
1668 | if (SvTEMP(sstr)) { /* slated for free anyway? */ | |
adbc6bb1 | 1669 | if (SvPVX(dstr)) { /* we know that dtype >= SVt_PV */ |
a0d0e21e | 1670 | (void)SvOOK_off(dstr); |
463ee0b2 | 1671 | Safefree(SvPVX(dstr)); |
79072805 | 1672 | } |
463ee0b2 | 1673 | SvPV_set(dstr, SvPVX(sstr)); |
79072805 LW |
1674 | SvLEN_set(dstr, SvLEN(sstr)); |
1675 | SvCUR_set(dstr, SvCUR(sstr)); | |
a0d0e21e | 1676 | (void)SvPOK_only(dstr); |
79072805 LW |
1677 | SvTEMP_off(dstr); |
1678 | SvPV_set(sstr, Nullch); | |
1679 | SvLEN_set(sstr, 0); | |
1680 | SvPOK_off(sstr); /* wipe out any weird flags */ | |
463ee0b2 | 1681 | SvPVX(sstr) = 0; /* so sstr frees uneventfully */ |
79072805 LW |
1682 | } |
1683 | else { /* have to copy actual string */ | |
8990e307 LW |
1684 | STRLEN len = SvCUR(sstr); |
1685 | ||
1686 | SvGROW(dstr, len + 1); /* inlined from sv_setpvn */ | |
1687 | Move(SvPVX(sstr),SvPVX(dstr),len,char); | |
1688 | SvCUR_set(dstr, len); | |
1689 | *SvEND(dstr) = '\0'; | |
a0d0e21e | 1690 | (void)SvPOK_only(dstr); |
79072805 LW |
1691 | } |
1692 | /*SUPPRESS 560*/ | |
8990e307 | 1693 | if (sflags & SVp_NOK) { |
79072805 | 1694 | SvNOK_on(dstr); |
463ee0b2 | 1695 | SvNVX(dstr) = SvNVX(sstr); |
79072805 | 1696 | } |
8990e307 | 1697 | if (sflags & SVp_IOK) { |
a0d0e21e | 1698 | (void)SvIOK_on(dstr); |
463ee0b2 | 1699 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
1700 | } |
1701 | } | |
8990e307 | 1702 | else if (sflags & SVp_NOK) { |
463ee0b2 | 1703 | SvNVX(dstr) = SvNVX(sstr); |
a0d0e21e | 1704 | (void)SvNOK_only(dstr); |
79072805 | 1705 | if (SvIOK(sstr)) { |
a0d0e21e | 1706 | (void)SvIOK_on(dstr); |
463ee0b2 | 1707 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
1708 | } |
1709 | } | |
8990e307 | 1710 | else if (sflags & SVp_IOK) { |
a0d0e21e | 1711 | (void)SvIOK_only(dstr); |
463ee0b2 | 1712 | SvIVX(dstr) = SvIVX(sstr); |
79072805 LW |
1713 | } |
1714 | else { | |
a0d0e21e LW |
1715 | (void)SvOK_off(dstr); |
1716 | } | |
463ee0b2 | 1717 | SvTAINT(dstr); |
79072805 LW |
1718 | } |
1719 | ||
1720 | void | |
1721 | sv_setpvn(sv,ptr,len) | |
1722 | register SV *sv; | |
1723 | register char *ptr; | |
1724 | register STRLEN len; | |
1725 | { | |
748a9306 | 1726 | assert(len >= 0); |
ed6116ce | 1727 | if (SvTHINKFIRST(sv)) { |
8990e307 | 1728 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
1729 | croak(no_modify); |
1730 | if (SvROK(sv)) | |
1731 | sv_unref(sv); | |
1732 | } | |
463ee0b2 | 1733 | if (!ptr) { |
a0d0e21e | 1734 | (void)SvOK_off(sv); |
463ee0b2 LW |
1735 | return; |
1736 | } | |
79072805 LW |
1737 | if (!SvUPGRADE(sv, SVt_PV)) |
1738 | return; | |
1739 | SvGROW(sv, len + 1); | |
a0d0e21e | 1740 | Move(ptr,SvPVX(sv),len,char); |
79072805 LW |
1741 | SvCUR_set(sv, len); |
1742 | *SvEND(sv) = '\0'; | |
a0d0e21e | 1743 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 1744 | SvTAINT(sv); |
79072805 LW |
1745 | } |
1746 | ||
1747 | void | |
1748 | sv_setpv(sv,ptr) | |
1749 | register SV *sv; | |
1750 | register char *ptr; | |
1751 | { | |
1752 | register STRLEN len; | |
1753 | ||
ed6116ce | 1754 | if (SvTHINKFIRST(sv)) { |
8990e307 | 1755 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
1756 | croak(no_modify); |
1757 | if (SvROK(sv)) | |
1758 | sv_unref(sv); | |
1759 | } | |
463ee0b2 | 1760 | if (!ptr) { |
a0d0e21e | 1761 | (void)SvOK_off(sv); |
463ee0b2 LW |
1762 | return; |
1763 | } | |
79072805 LW |
1764 | len = strlen(ptr); |
1765 | if (!SvUPGRADE(sv, SVt_PV)) | |
1766 | return; | |
1767 | SvGROW(sv, len + 1); | |
463ee0b2 | 1768 | Move(ptr,SvPVX(sv),len+1,char); |
79072805 | 1769 | SvCUR_set(sv, len); |
a0d0e21e | 1770 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 LW |
1771 | SvTAINT(sv); |
1772 | } | |
1773 | ||
1774 | void | |
1775 | sv_usepvn(sv,ptr,len) | |
1776 | register SV *sv; | |
1777 | register char *ptr; | |
1778 | register STRLEN len; | |
1779 | { | |
ed6116ce | 1780 | if (SvTHINKFIRST(sv)) { |
8990e307 | 1781 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
1782 | croak(no_modify); |
1783 | if (SvROK(sv)) | |
1784 | sv_unref(sv); | |
1785 | } | |
463ee0b2 LW |
1786 | if (!SvUPGRADE(sv, SVt_PV)) |
1787 | return; | |
1788 | if (!ptr) { | |
a0d0e21e | 1789 | (void)SvOK_off(sv); |
463ee0b2 LW |
1790 | return; |
1791 | } | |
1792 | if (SvPVX(sv)) | |
1793 | Safefree(SvPVX(sv)); | |
1794 | Renew(ptr, len+1, char); | |
1795 | SvPVX(sv) = ptr; | |
1796 | SvCUR_set(sv, len); | |
1797 | SvLEN_set(sv, len+1); | |
1798 | *SvEND(sv) = '\0'; | |
a0d0e21e | 1799 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 1800 | SvTAINT(sv); |
79072805 LW |
1801 | } |
1802 | ||
1803 | void | |
1804 | sv_chop(sv,ptr) /* like set but assuming ptr is in sv */ | |
1805 | register SV *sv; | |
1806 | register char *ptr; | |
1807 | { | |
1808 | register STRLEN delta; | |
1809 | ||
a0d0e21e | 1810 | if (!ptr || !SvPOKp(sv)) |
79072805 | 1811 | return; |
ed6116ce | 1812 | if (SvTHINKFIRST(sv)) { |
8990e307 | 1813 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
1814 | croak(no_modify); |
1815 | if (SvROK(sv)) | |
1816 | sv_unref(sv); | |
1817 | } | |
79072805 LW |
1818 | if (SvTYPE(sv) < SVt_PVIV) |
1819 | sv_upgrade(sv,SVt_PVIV); | |
1820 | ||
1821 | if (!SvOOK(sv)) { | |
463ee0b2 | 1822 | SvIVX(sv) = 0; |
79072805 LW |
1823 | SvFLAGS(sv) |= SVf_OOK; |
1824 | } | |
8990e307 | 1825 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVp_IOK|SVp_NOK); |
463ee0b2 | 1826 | delta = ptr - SvPVX(sv); |
79072805 LW |
1827 | SvLEN(sv) -= delta; |
1828 | SvCUR(sv) -= delta; | |
463ee0b2 LW |
1829 | SvPVX(sv) += delta; |
1830 | SvIVX(sv) += delta; | |
79072805 LW |
1831 | } |
1832 | ||
1833 | void | |
1834 | sv_catpvn(sv,ptr,len) | |
1835 | register SV *sv; | |
1836 | register char *ptr; | |
1837 | register STRLEN len; | |
1838 | { | |
463ee0b2 | 1839 | STRLEN tlen; |
748a9306 | 1840 | char *junk; |
a0d0e21e | 1841 | |
748a9306 | 1842 | junk = SvPV_force(sv, tlen); |
463ee0b2 | 1843 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
1844 | if (ptr == junk) |
1845 | ptr = SvPVX(sv); | |
463ee0b2 | 1846 | Move(ptr,SvPVX(sv)+tlen,len,char); |
79072805 LW |
1847 | SvCUR(sv) += len; |
1848 | *SvEND(sv) = '\0'; | |
a0d0e21e | 1849 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 1850 | SvTAINT(sv); |
79072805 LW |
1851 | } |
1852 | ||
1853 | void | |
1854 | sv_catsv(dstr,sstr) | |
1855 | SV *dstr; | |
1856 | register SV *sstr; | |
1857 | { | |
1858 | char *s; | |
463ee0b2 | 1859 | STRLEN len; |
79072805 LW |
1860 | if (!sstr) |
1861 | return; | |
463ee0b2 LW |
1862 | if (s = SvPV(sstr, len)) |
1863 | sv_catpvn(dstr,s,len); | |
79072805 LW |
1864 | } |
1865 | ||
1866 | void | |
1867 | sv_catpv(sv,ptr) | |
1868 | register SV *sv; | |
1869 | register char *ptr; | |
1870 | { | |
1871 | register STRLEN len; | |
463ee0b2 | 1872 | STRLEN tlen; |
748a9306 | 1873 | char *junk; |
79072805 | 1874 | |
79072805 LW |
1875 | if (!ptr) |
1876 | return; | |
748a9306 | 1877 | junk = SvPV_force(sv, tlen); |
79072805 | 1878 | len = strlen(ptr); |
463ee0b2 | 1879 | SvGROW(sv, tlen + len + 1); |
4633a7c4 LW |
1880 | if (ptr == junk) |
1881 | ptr = SvPVX(sv); | |
463ee0b2 | 1882 | Move(ptr,SvPVX(sv)+tlen,len+1,char); |
79072805 | 1883 | SvCUR(sv) += len; |
a0d0e21e | 1884 | (void)SvPOK_only(sv); /* validate pointer */ |
463ee0b2 | 1885 | SvTAINT(sv); |
79072805 LW |
1886 | } |
1887 | ||
79072805 LW |
1888 | SV * |
1889 | #ifdef LEAKTEST | |
1890 | newSV(x,len) | |
1891 | I32 x; | |
1892 | #else | |
1893 | newSV(len) | |
1894 | #endif | |
1895 | STRLEN len; | |
1896 | { | |
1897 | register SV *sv; | |
1898 | ||
463ee0b2 | 1899 | new_SV(); |
8990e307 LW |
1900 | SvANY(sv) = 0; |
1901 | SvREFCNT(sv) = 1; | |
1902 | SvFLAGS(sv) = 0; | |
79072805 LW |
1903 | if (len) { |
1904 | sv_upgrade(sv, SVt_PV); | |
1905 | SvGROW(sv, len + 1); | |
1906 | } | |
1907 | return sv; | |
1908 | } | |
1909 | ||
1910 | void | |
1911 | sv_magic(sv, obj, how, name, namlen) | |
1912 | register SV *sv; | |
1913 | SV *obj; | |
a0d0e21e | 1914 | int how; |
79072805 | 1915 | char *name; |
463ee0b2 | 1916 | I32 namlen; |
79072805 LW |
1917 | { |
1918 | MAGIC* mg; | |
1919 | ||
a0d0e21e LW |
1920 | if (SvREADONLY(sv) && curcop != &compiling && !strchr("gB", how)) |
1921 | croak(no_modify); | |
4633a7c4 | 1922 | if (SvMAGICAL(sv) || (how == 't' && SvTYPE(sv) >= SVt_PVMG)) { |
748a9306 LW |
1923 | if (SvMAGIC(sv) && (mg = mg_find(sv, how))) { |
1924 | if (how == 't') | |
1925 | mg->mg_len |= 1; | |
463ee0b2 | 1926 | return; |
748a9306 | 1927 | } |
463ee0b2 LW |
1928 | } |
1929 | else { | |
1930 | if (!SvUPGRADE(sv, SVt_PVMG)) | |
1931 | return; | |
463ee0b2 | 1932 | } |
79072805 LW |
1933 | Newz(702,mg, 1, MAGIC); |
1934 | mg->mg_moremagic = SvMAGIC(sv); | |
463ee0b2 | 1935 | |
79072805 | 1936 | SvMAGIC(sv) = mg; |
748a9306 | 1937 | if (!obj || obj == sv || how == '#') |
8990e307 | 1938 | mg->mg_obj = obj; |
85e6fe83 | 1939 | else { |
8990e307 | 1940 | mg->mg_obj = SvREFCNT_inc(obj); |
85e6fe83 LW |
1941 | mg->mg_flags |= MGf_REFCOUNTED; |
1942 | } | |
79072805 | 1943 | mg->mg_type = how; |
463ee0b2 LW |
1944 | mg->mg_len = namlen; |
1945 | if (name && namlen >= 0) | |
a0d0e21e | 1946 | mg->mg_ptr = savepvn(name, namlen); |
79072805 LW |
1947 | switch (how) { |
1948 | case 0: | |
1949 | mg->mg_virtual = &vtbl_sv; | |
1950 | break; | |
a0d0e21e LW |
1951 | #ifdef OVERLOAD |
1952 | case 'A': | |
1953 | mg->mg_virtual = &vtbl_amagic; | |
1954 | break; | |
1955 | case 'a': | |
1956 | mg->mg_virtual = &vtbl_amagicelem; | |
1957 | break; | |
1958 | case 'c': | |
1959 | mg->mg_virtual = 0; | |
1960 | break; | |
1961 | #endif /* OVERLOAD */ | |
79072805 LW |
1962 | case 'B': |
1963 | mg->mg_virtual = &vtbl_bm; | |
1964 | break; | |
79072805 LW |
1965 | case 'E': |
1966 | mg->mg_virtual = &vtbl_env; | |
1967 | break; | |
1968 | case 'e': | |
1969 | mg->mg_virtual = &vtbl_envelem; | |
1970 | break; | |
93a17b20 LW |
1971 | case 'g': |
1972 | mg->mg_virtual = &vtbl_mglob; | |
1973 | break; | |
463ee0b2 LW |
1974 | case 'I': |
1975 | mg->mg_virtual = &vtbl_isa; | |
1976 | break; | |
1977 | case 'i': | |
1978 | mg->mg_virtual = &vtbl_isaelem; | |
1979 | break; | |
79072805 | 1980 | case 'L': |
a0d0e21e | 1981 | SvRMAGICAL_on(sv); |
93a17b20 LW |
1982 | mg->mg_virtual = 0; |
1983 | break; | |
1984 | case 'l': | |
79072805 LW |
1985 | mg->mg_virtual = &vtbl_dbline; |
1986 | break; | |
463ee0b2 LW |
1987 | case 'P': |
1988 | mg->mg_virtual = &vtbl_pack; | |
1989 | break; | |
1990 | case 'p': | |
a0d0e21e | 1991 | case 'q': |
463ee0b2 LW |
1992 | mg->mg_virtual = &vtbl_packelem; |
1993 | break; | |
79072805 LW |
1994 | case 'S': |
1995 | mg->mg_virtual = &vtbl_sig; | |
1996 | break; | |
1997 | case 's': | |
1998 | mg->mg_virtual = &vtbl_sigelem; | |
1999 | break; | |
463ee0b2 LW |
2000 | case 't': |
2001 | mg->mg_virtual = &vtbl_taint; | |
748a9306 | 2002 | mg->mg_len = 1; |
463ee0b2 | 2003 | break; |
79072805 LW |
2004 | case 'U': |
2005 | mg->mg_virtual = &vtbl_uvar; | |
2006 | break; | |
2007 | case 'v': | |
2008 | mg->mg_virtual = &vtbl_vec; | |
2009 | break; | |
2010 | case 'x': | |
2011 | mg->mg_virtual = &vtbl_substr; | |
2012 | break; | |
2013 | case '*': | |
2014 | mg->mg_virtual = &vtbl_glob; | |
2015 | break; | |
2016 | case '#': | |
2017 | mg->mg_virtual = &vtbl_arylen; | |
2018 | break; | |
a0d0e21e LW |
2019 | case '.': |
2020 | mg->mg_virtual = &vtbl_pos; | |
2021 | break; | |
4633a7c4 LW |
2022 | case '~': /* Reserved for use by extensions not perl internals. */ |
2023 | /* Useful for attaching extension internal data to perl vars. */ | |
2024 | /* Note that multiple extensions may clash if magical scalars */ | |
2025 | /* etc holding private data from one are passed to another. */ | |
2026 | SvRMAGICAL_on(sv); | |
a0d0e21e | 2027 | break; |
79072805 | 2028 | default: |
463ee0b2 LW |
2029 | croak("Don't know how to handle magic of type '%c'", how); |
2030 | } | |
8990e307 LW |
2031 | mg_magical(sv); |
2032 | if (SvGMAGICAL(sv)) | |
2033 | SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK|SVf_POK); | |
463ee0b2 LW |
2034 | } |
2035 | ||
2036 | int | |
2037 | sv_unmagic(sv, type) | |
2038 | SV* sv; | |
a0d0e21e | 2039 | int type; |
463ee0b2 LW |
2040 | { |
2041 | MAGIC* mg; | |
2042 | MAGIC** mgp; | |
2043 | if (!SvMAGICAL(sv)) | |
2044 | return 0; | |
2045 | mgp = &SvMAGIC(sv); | |
2046 | for (mg = *mgp; mg; mg = *mgp) { | |
2047 | if (mg->mg_type == type) { | |
2048 | MGVTBL* vtbl = mg->mg_virtual; | |
2049 | *mgp = mg->mg_moremagic; | |
2050 | if (vtbl && vtbl->svt_free) | |
2051 | (*vtbl->svt_free)(sv, mg); | |
2052 | if (mg->mg_ptr && mg->mg_type != 'g') | |
2053 | Safefree(mg->mg_ptr); | |
a0d0e21e LW |
2054 | if (mg->mg_flags & MGf_REFCOUNTED) |
2055 | SvREFCNT_dec(mg->mg_obj); | |
463ee0b2 LW |
2056 | Safefree(mg); |
2057 | } | |
2058 | else | |
2059 | mgp = &mg->mg_moremagic; | |
79072805 | 2060 | } |
463ee0b2 LW |
2061 | if (!SvMAGIC(sv)) { |
2062 | SvMAGICAL_off(sv); | |
8990e307 | 2063 | SvFLAGS(sv) |= (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) >> PRIVSHIFT; |
463ee0b2 LW |
2064 | } |
2065 | ||
2066 | return 0; | |
79072805 LW |
2067 | } |
2068 | ||
2069 | void | |
2070 | sv_insert(bigstr,offset,len,little,littlelen) | |
2071 | SV *bigstr; | |
2072 | STRLEN offset; | |
2073 | STRLEN len; | |
2074 | char *little; | |
2075 | STRLEN littlelen; | |
2076 | { | |
2077 | register char *big; | |
2078 | register char *mid; | |
2079 | register char *midend; | |
2080 | register char *bigend; | |
2081 | register I32 i; | |
2082 | ||
8990e307 LW |
2083 | if (!bigstr) |
2084 | croak("Can't modify non-existent substring"); | |
a0d0e21e | 2085 | SvPV_force(bigstr, na); |
79072805 LW |
2086 | |
2087 | i = littlelen - len; | |
2088 | if (i > 0) { /* string might grow */ | |
a0d0e21e | 2089 | big = SvGROW(bigstr, SvCUR(bigstr) + i + 1); |
79072805 LW |
2090 | mid = big + offset + len; |
2091 | midend = bigend = big + SvCUR(bigstr); | |
2092 | bigend += i; | |
2093 | *bigend = '\0'; | |
2094 | while (midend > mid) /* shove everything down */ | |
2095 | *--bigend = *--midend; | |
2096 | Move(little,big+offset,littlelen,char); | |
2097 | SvCUR(bigstr) += i; | |
2098 | SvSETMAGIC(bigstr); | |
2099 | return; | |
2100 | } | |
2101 | else if (i == 0) { | |
463ee0b2 | 2102 | Move(little,SvPVX(bigstr)+offset,len,char); |
79072805 LW |
2103 | SvSETMAGIC(bigstr); |
2104 | return; | |
2105 | } | |
2106 | ||
463ee0b2 | 2107 | big = SvPVX(bigstr); |
79072805 LW |
2108 | mid = big + offset; |
2109 | midend = mid + len; | |
2110 | bigend = big + SvCUR(bigstr); | |
2111 | ||
2112 | if (midend > bigend) | |
463ee0b2 | 2113 | croak("panic: sv_insert"); |
79072805 LW |
2114 | |
2115 | if (mid - big > bigend - midend) { /* faster to shorten from end */ | |
2116 | if (littlelen) { | |
2117 | Move(little, mid, littlelen,char); | |
2118 | mid += littlelen; | |
2119 | } | |
2120 | i = bigend - midend; | |
2121 | if (i > 0) { | |
2122 | Move(midend, mid, i,char); | |
2123 | mid += i; | |
2124 | } | |
2125 | *mid = '\0'; | |
2126 | SvCUR_set(bigstr, mid - big); | |
2127 | } | |
2128 | /*SUPPRESS 560*/ | |
2129 | else if (i = mid - big) { /* faster from front */ | |
2130 | midend -= littlelen; | |
2131 | mid = midend; | |
2132 | sv_chop(bigstr,midend-i); | |
2133 | big += i; | |
2134 | while (i--) | |
2135 | *--midend = *--big; | |
2136 | if (littlelen) | |
2137 | Move(little, mid, littlelen,char); | |
2138 | } | |
2139 | else if (littlelen) { | |
2140 | midend -= littlelen; | |
2141 | sv_chop(bigstr,midend); | |
2142 | Move(little,midend,littlelen,char); | |
2143 | } | |
2144 | else { | |
2145 | sv_chop(bigstr,midend); | |
2146 | } | |
2147 | SvSETMAGIC(bigstr); | |
2148 | } | |
2149 | ||
2150 | /* make sv point to what nstr did */ | |
2151 | ||
2152 | void | |
2153 | sv_replace(sv,nsv) | |
2154 | register SV *sv; | |
2155 | register SV *nsv; | |
2156 | { | |
2157 | U32 refcnt = SvREFCNT(sv); | |
ed6116ce | 2158 | if (SvTHINKFIRST(sv)) { |
8990e307 | 2159 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
2160 | croak(no_modify); |
2161 | if (SvROK(sv)) | |
2162 | sv_unref(sv); | |
2163 | } | |
79072805 LW |
2164 | if (SvREFCNT(nsv) != 1) |
2165 | warn("Reference miscount in sv_replace()"); | |
93a17b20 | 2166 | if (SvMAGICAL(sv)) { |
a0d0e21e LW |
2167 | if (SvMAGICAL(nsv)) |
2168 | mg_free(nsv); | |
2169 | else | |
2170 | sv_upgrade(nsv, SVt_PVMG); | |
93a17b20 | 2171 | SvMAGIC(nsv) = SvMAGIC(sv); |
a0d0e21e | 2172 | SvFLAGS(nsv) |= SvMAGICAL(sv); |
93a17b20 LW |
2173 | SvMAGICAL_off(sv); |
2174 | SvMAGIC(sv) = 0; | |
2175 | } | |
79072805 LW |
2176 | SvREFCNT(sv) = 0; |
2177 | sv_clear(sv); | |
2178 | StructCopy(nsv,sv,SV); | |
2179 | SvREFCNT(sv) = refcnt; | |
463ee0b2 | 2180 | del_SV(nsv); |
79072805 LW |
2181 | } |
2182 | ||
2183 | void | |
2184 | sv_clear(sv) | |
2185 | register SV *sv; | |
2186 | { | |
2187 | assert(sv); | |
2188 | assert(SvREFCNT(sv) == 0); | |
2189 | ||
ed6116ce | 2190 | if (SvOBJECT(sv)) { |
463ee0b2 | 2191 | dSP; |
463ee0b2 LW |
2192 | GV* destructor; |
2193 | ||
a0d0e21e LW |
2194 | if (defstash) { /* Still have a symbol table? */ |
2195 | destructor = gv_fetchmethod(SvSTASH(sv), "DESTROY"); | |
2196 | ||
2197 | ENTER; | |
2198 | SAVEFREESV(SvSTASH(sv)); | |
2199 | if (destructor && GvCV(destructor)) { | |
2200 | SV ref; | |
2201 | ||
2202 | Zero(&ref, 1, SV); | |
2203 | sv_upgrade(&ref, SVt_RV); | |
2204 | SAVEI32(SvREFCNT(sv)); | |
2205 | SvRV(&ref) = SvREFCNT_inc(sv); | |
2206 | SvROK_on(&ref); | |
2207 | ||
2208 | EXTEND(SP, 2); | |
2209 | PUSHMARK(SP); | |
2210 | PUSHs(&ref); | |
2211 | PUTBACK; | |
4633a7c4 | 2212 | perl_call_sv((SV*)destructor, G_DISCARD|G_EVAL|G_KEEPERR); |
748a9306 | 2213 | del_XRV(SvANY(&ref)); |
a0d0e21e LW |
2214 | } |
2215 | LEAVE; | |
2216 | } | |
4633a7c4 LW |
2217 | else |
2218 | SvREFCNT_dec(SvSTASH(sv)); | |
a0d0e21e LW |
2219 | if (SvOBJECT(sv)) { |
2220 | SvOBJECT_off(sv); /* Curse the object. */ | |
2221 | if (SvTYPE(sv) != SVt_PVIO) | |
2222 | --sv_objcount; /* XXX Might want something more general */ | |
2223 | } | |
463ee0b2 | 2224 | } |
a0d0e21e LW |
2225 | if (SvMAGICAL(sv)) |
2226 | mg_free(sv); | |
79072805 | 2227 | switch (SvTYPE(sv)) { |
8990e307 LW |
2228 | case SVt_PVIO: |
2229 | Safefree(IoTOP_NAME(sv)); | |
2230 | Safefree(IoFMT_NAME(sv)); | |
2231 | Safefree(IoBOTTOM_NAME(sv)); | |
a0d0e21e | 2232 | /* FALL THROUGH */ |
79072805 | 2233 | case SVt_PVBM: |
a0d0e21e | 2234 | goto freescalar; |
79072805 | 2235 | case SVt_PVCV: |
748a9306 | 2236 | case SVt_PVFM: |
85e6fe83 | 2237 | cv_undef((CV*)sv); |
a0d0e21e | 2238 | goto freescalar; |
79072805 | 2239 | case SVt_PVHV: |
85e6fe83 | 2240 | hv_undef((HV*)sv); |
a0d0e21e | 2241 | break; |
79072805 | 2242 | case SVt_PVAV: |
85e6fe83 | 2243 | av_undef((AV*)sv); |
a0d0e21e LW |
2244 | break; |
2245 | case SVt_PVGV: | |
2246 | gp_free(sv); | |
2247 | Safefree(GvNAME(sv)); | |
2248 | /* FALL THROUGH */ | |
79072805 | 2249 | case SVt_PVLV: |
79072805 | 2250 | case SVt_PVMG: |
79072805 LW |
2251 | case SVt_PVNV: |
2252 | case SVt_PVIV: | |
a0d0e21e LW |
2253 | freescalar: |
2254 | (void)SvOOK_off(sv); | |
79072805 LW |
2255 | /* FALL THROUGH */ |
2256 | case SVt_PV: | |
a0d0e21e | 2257 | case SVt_RV: |
8990e307 LW |
2258 | if (SvROK(sv)) |
2259 | SvREFCNT_dec(SvRV(sv)); | |
2260 | else if (SvPVX(sv)) | |
463ee0b2 | 2261 | Safefree(SvPVX(sv)); |
79072805 | 2262 | break; |
a0d0e21e | 2263 | /* |
79072805 | 2264 | case SVt_NV: |
79072805 | 2265 | case SVt_IV: |
79072805 LW |
2266 | case SVt_NULL: |
2267 | break; | |
a0d0e21e | 2268 | */ |
79072805 LW |
2269 | } |
2270 | ||
2271 | switch (SvTYPE(sv)) { | |
2272 | case SVt_NULL: | |
2273 | break; | |
79072805 LW |
2274 | case SVt_IV: |
2275 | del_XIV(SvANY(sv)); | |
2276 | break; | |
2277 | case SVt_NV: | |
2278 | del_XNV(SvANY(sv)); | |
2279 | break; | |
ed6116ce LW |
2280 | case SVt_RV: |
2281 | del_XRV(SvANY(sv)); | |
2282 | break; | |
79072805 LW |
2283 | case SVt_PV: |
2284 | del_XPV(SvANY(sv)); | |
2285 | break; | |
2286 | case SVt_PVIV: | |
2287 | del_XPVIV(SvANY(sv)); | |
2288 | break; | |
2289 | case SVt_PVNV: | |
2290 | del_XPVNV(SvANY(sv)); | |
2291 | break; | |
2292 | case SVt_PVMG: | |
2293 | del_XPVMG(SvANY(sv)); | |
2294 | break; | |
2295 | case SVt_PVLV: | |
2296 | del_XPVLV(SvANY(sv)); | |
2297 | break; | |
2298 | case SVt_PVAV: | |
2299 | del_XPVAV(SvANY(sv)); | |
2300 | break; | |
2301 | case SVt_PVHV: | |
2302 | del_XPVHV(SvANY(sv)); | |
2303 | break; | |
2304 | case SVt_PVCV: | |
2305 | del_XPVCV(SvANY(sv)); | |
2306 | break; | |
2307 | case SVt_PVGV: | |
2308 | del_XPVGV(SvANY(sv)); | |
2309 | break; | |
2310 | case SVt_PVBM: | |
2311 | del_XPVBM(SvANY(sv)); | |
2312 | break; | |
2313 | case SVt_PVFM: | |
2314 | del_XPVFM(SvANY(sv)); | |
2315 | break; | |
8990e307 LW |
2316 | case SVt_PVIO: |
2317 | del_XPVIO(SvANY(sv)); | |
2318 | break; | |
79072805 | 2319 | } |
a0d0e21e | 2320 | SvFLAGS(sv) &= SVf_BREAK; |
8990e307 | 2321 | SvFLAGS(sv) |= SVTYPEMASK; |
79072805 LW |
2322 | } |
2323 | ||
2324 | SV * | |
8990e307 | 2325 | sv_newref(sv) |
79072805 LW |
2326 | SV* sv; |
2327 | { | |
463ee0b2 LW |
2328 | if (sv) |
2329 | SvREFCNT(sv)++; | |
79072805 LW |
2330 | return sv; |
2331 | } | |
2332 | ||
2333 | void | |
2334 | sv_free(sv) | |
2335 | SV *sv; | |
2336 | { | |
2337 | if (!sv) | |
2338 | return; | |
a0d0e21e LW |
2339 | if (SvREADONLY(sv)) { |
2340 | if (sv == &sv_undef || sv == &sv_yes || sv == &sv_no) | |
2341 | return; | |
79072805 | 2342 | } |
a0d0e21e LW |
2343 | if (SvREFCNT(sv) == 0) { |
2344 | if (SvFLAGS(sv) & SVf_BREAK) | |
2345 | return; | |
79072805 LW |
2346 | warn("Attempt to free unreferenced scalar"); |
2347 | return; | |
2348 | } | |
8990e307 LW |
2349 | if (--SvREFCNT(sv) > 0) |
2350 | return; | |
463ee0b2 LW |
2351 | #ifdef DEBUGGING |
2352 | if (SvTEMP(sv)) { | |
2353 | warn("Attempt to free temp prematurely"); | |
79072805 | 2354 | return; |
79072805 | 2355 | } |
463ee0b2 | 2356 | #endif |
79072805 | 2357 | sv_clear(sv); |
79072805 LW |
2358 | del_SV(sv); |
2359 | } | |
2360 | ||
2361 | STRLEN | |
2362 | sv_len(sv) | |
2363 | register SV *sv; | |
2364 | { | |
748a9306 | 2365 | char *junk; |
463ee0b2 | 2366 | STRLEN len; |
79072805 LW |
2367 | |
2368 | if (!sv) | |
2369 | return 0; | |
2370 | ||
8990e307 LW |
2371 | if (SvGMAGICAL(sv)) |
2372 | len = mg_len(sv); | |
2373 | else | |
748a9306 | 2374 | junk = SvPV(sv, len); |
463ee0b2 | 2375 | return len; |
79072805 LW |
2376 | } |
2377 | ||
2378 | I32 | |
2379 | sv_eq(str1,str2) | |
2380 | register SV *str1; | |
2381 | register SV *str2; | |
2382 | { | |
2383 | char *pv1; | |
463ee0b2 | 2384 | STRLEN cur1; |
79072805 | 2385 | char *pv2; |
463ee0b2 | 2386 | STRLEN cur2; |
79072805 LW |
2387 | |
2388 | if (!str1) { | |
2389 | pv1 = ""; | |
2390 | cur1 = 0; | |
2391 | } | |
463ee0b2 LW |
2392 | else |
2393 | pv1 = SvPV(str1, cur1); | |
79072805 LW |
2394 | |
2395 | if (!str2) | |
2396 | return !cur1; | |
463ee0b2 LW |
2397 | else |
2398 | pv2 = SvPV(str2, cur2); | |
79072805 LW |
2399 | |
2400 | if (cur1 != cur2) | |
2401 | return 0; | |
2402 | ||
2403 | return !bcmp(pv1, pv2, cur1); | |
2404 | } | |
2405 | ||
2406 | I32 | |
2407 | sv_cmp(str1,str2) | |
2408 | register SV *str1; | |
2409 | register SV *str2; | |
2410 | { | |
2411 | I32 retval; | |
2412 | char *pv1; | |
463ee0b2 | 2413 | STRLEN cur1; |
79072805 | 2414 | char *pv2; |
463ee0b2 | 2415 | STRLEN cur2; |
79072805 LW |
2416 | |
2417 | if (!str1) { | |
2418 | pv1 = ""; | |
2419 | cur1 = 0; | |
2420 | } | |
463ee0b2 LW |
2421 | else |
2422 | pv1 = SvPV(str1, cur1); | |
79072805 LW |
2423 | |
2424 | if (!str2) { | |
2425 | pv2 = ""; | |
2426 | cur2 = 0; | |
2427 | } | |
463ee0b2 LW |
2428 | else |
2429 | pv2 = SvPV(str2, cur2); | |
79072805 LW |
2430 | |
2431 | if (!cur1) | |
2432 | return cur2 ? -1 : 0; | |
2433 | if (!cur2) | |
2434 | return 1; | |
2435 | ||
2436 | if (cur1 < cur2) { | |
2437 | /*SUPPRESS 560*/ | |
85e6fe83 | 2438 | if (retval = memcmp((void*)pv1, (void*)pv2, cur1)) |
79072805 LW |
2439 | return retval < 0 ? -1 : 1; |
2440 | else | |
2441 | return -1; | |
2442 | } | |
2443 | /*SUPPRESS 560*/ | |
85e6fe83 | 2444 | else if (retval = memcmp((void*)pv1, (void*)pv2, cur2)) |
79072805 LW |
2445 | return retval < 0 ? -1 : 1; |
2446 | else if (cur1 == cur2) | |
2447 | return 0; | |
2448 | else | |
2449 | return 1; | |
2450 | } | |
2451 | ||
2452 | char * | |
2453 | sv_gets(sv,fp,append) | |
2454 | register SV *sv; | |
2455 | register FILE *fp; | |
2456 | I32 append; | |
2457 | { | |
2458 | register char *bp; /* we're going to steal some values */ | |
c2960299 | 2459 | #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) |
79072805 LW |
2460 | register I32 cnt; /* from the stdio struct and put EVERYTHING */ |
2461 | register STDCHAR *ptr; /* in the innermost loop into registers */ | |
79072805 LW |
2462 | STRLEN bpx; |
2463 | I32 shortbuffered; | |
748a9306 LW |
2464 | #endif |
2465 | register I32 newline = rschar;/* (assuming >= 6 registers) */ | |
2466 | I32 i; | |
79072805 | 2467 | |
ed6116ce | 2468 | if (SvTHINKFIRST(sv)) { |
8990e307 | 2469 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce LW |
2470 | croak(no_modify); |
2471 | if (SvROK(sv)) | |
2472 | sv_unref(sv); | |
2473 | } | |
79072805 | 2474 | if (!SvUPGRADE(sv, SVt_PV)) |
a0d0e21e | 2475 | return 0; |
79072805 LW |
2476 | if (rspara) { /* have to do this both before and after */ |
2477 | do { /* to make sure file boundaries work right */ | |
a0d0e21e LW |
2478 | if (feof(fp)) |
2479 | return 0; | |
79072805 LW |
2480 | i = getc(fp); |
2481 | if (i != '\n') { | |
a0d0e21e LW |
2482 | if (i == -1) |
2483 | return 0; | |
79072805 LW |
2484 | ungetc(i,fp); |
2485 | break; | |
2486 | } | |
2487 | } while (i != EOF); | |
2488 | } | |
c2960299 AD |
2489 | #if defined(USE_STDIO_PTR) && defined(STDIO_PTR_LVALUE) && defined(STDIO_CNT_LVALUE) |
2490 | /* Here is some breathtakingly efficient cheating */ | |
16d20bd9 | 2491 | cnt = FILE_cnt(fp); /* get count into register */ |
a0d0e21e | 2492 | (void)SvPOK_only(sv); /* validate pointer */ |
79072805 LW |
2493 | if (SvLEN(sv) - append <= cnt + 1) { /* make sure we have the room */ |
2494 | if (cnt > 80 && SvLEN(sv) > append) { | |
2495 | shortbuffered = cnt - SvLEN(sv) + append + 1; | |
2496 | cnt -= shortbuffered; | |
2497 | } | |
2498 | else { | |
2499 | shortbuffered = 0; | |
2500 | SvGROW(sv, append+cnt+2);/* (remembering cnt can be -1) */ | |
2501 | } | |
2502 | } | |
2503 | else | |
2504 | shortbuffered = 0; | |
463ee0b2 | 2505 | bp = SvPVX(sv) + append; /* move these two too to registers */ |
16d20bd9 | 2506 | ptr = FILE_ptr(fp); |
79072805 LW |
2507 | for (;;) { |
2508 | screamer: | |
93a17b20 LW |
2509 | if (cnt > 0) { |
2510 | while (--cnt >= 0) { /* this */ /* eat */ | |
2511 | if ((*bp++ = *ptr++) == newline) /* really */ /* dust */ | |
2512 | goto thats_all_folks; /* screams */ /* sed :-) */ | |
2513 | } | |
79072805 LW |
2514 | } |
2515 | ||
748a9306 | 2516 | if (shortbuffered) { /* oh well, must extend */ |
79072805 LW |
2517 | cnt = shortbuffered; |
2518 | shortbuffered = 0; | |
463ee0b2 | 2519 | bpx = bp - SvPVX(sv); /* prepare for possible relocation */ |
79072805 LW |
2520 | SvCUR_set(sv, bpx); |
2521 | SvGROW(sv, SvLEN(sv) + append + cnt + 2); | |
463ee0b2 | 2522 | bp = SvPVX(sv) + bpx; /* reconstitute our pointer */ |
79072805 LW |
2523 | continue; |
2524 | } | |
2525 | ||
16d20bd9 AD |
2526 | FILE_cnt(fp) = cnt; /* deregisterize cnt and ptr */ |
2527 | FILE_ptr(fp) = ptr; | |
79072805 | 2528 | i = _filbuf(fp); /* get more characters */ |
16d20bd9 AD |
2529 | cnt = FILE_cnt(fp); |
2530 | ptr = FILE_ptr(fp); /* reregisterize cnt and ptr */ | |
79072805 | 2531 | |
748a9306 LW |
2532 | if (i == EOF) /* all done for ever? */ |
2533 | goto thats_really_all_folks; | |
2534 | ||
2535 | bpx = bp - SvPVX(sv); /* prepare for possible relocation */ | |
79072805 LW |
2536 | SvCUR_set(sv, bpx); |
2537 | SvGROW(sv, bpx + cnt + 2); | |
748a9306 | 2538 | bp = SvPVX(sv) + bpx; /* reconstitute our pointer */ |
79072805 LW |
2539 | |
2540 | if (i == newline) { /* all done for now? */ | |
2541 | *bp++ = i; | |
2542 | goto thats_all_folks; | |
2543 | } | |
79072805 LW |
2544 | *bp++ = i; /* now go back to screaming loop */ |
2545 | } | |
2546 | ||
2547 | thats_all_folks: | |
463ee0b2 | 2548 | if (rslen > 1 && (bp - SvPVX(sv) < rslen || bcmp(bp - rslen, rs, rslen))) |
748a9306 | 2549 | goto screamer; /* go back to the fray */ |
79072805 LW |
2550 | thats_really_all_folks: |
2551 | if (shortbuffered) | |
2552 | cnt += shortbuffered; | |
16d20bd9 AD |
2553 | FILE_cnt(fp) = cnt; /* put these back or we're in trouble */ |
2554 | FILE_ptr(fp) = ptr; | |
79072805 | 2555 | *bp = '\0'; |
463ee0b2 | 2556 | SvCUR_set(sv, bp - SvPVX(sv)); /* set length */ |
79072805 | 2557 | |
c2960299 AD |
2558 | #else /* USE_STDIO_PTR && STDIO_PTR_LVALUE && STDIO_CNT_LVALUE */ |
2559 | /*The big, slow, and stupid way */ | |
79072805 LW |
2560 | { |
2561 | char buf[8192]; | |
2562 | register char * bpe = buf + sizeof(buf) - 3; | |
2563 | ||
2564 | screamer: | |
2565 | bp = buf; | |
2566 | while ((i = getc(fp)) != EOF && (*bp++ = i) != newline && bp < bpe) ; | |
2567 | ||
2568 | if (append) | |
2569 | sv_catpvn(sv, buf, bp - buf); | |
2570 | else | |
2571 | sv_setpvn(sv, buf, bp - buf); | |
2572 | if (i != EOF /* joy */ | |
2573 | && | |
2574 | (i != newline | |
2575 | || | |
2576 | (rslen > 1 | |
2577 | && | |
2578 | (SvCUR(sv) < rslen | |
2579 | || | |
463ee0b2 | 2580 | bcmp(SvPVX(sv) + SvCUR(sv) - rslen, rs, rslen) |
79072805 LW |
2581 | ) |
2582 | ) | |
2583 | ) | |
2584 | ) | |
2585 | { | |
2586 | append = -1; | |
2587 | goto screamer; | |
2588 | } | |
2589 | } | |
2590 | ||
c2960299 | 2591 | #endif /* USE_STDIO_PTR && STDIO_PTR_LVALUE && STDIO_CNT_LVALUE */ |
79072805 LW |
2592 | |
2593 | if (rspara) { | |
2594 | while (i != EOF) { | |
2595 | i = getc(fp); | |
2596 | if (i != '\n') { | |
2597 | ungetc(i,fp); | |
2598 | break; | |
2599 | } | |
2600 | } | |
2601 | } | |
463ee0b2 | 2602 | return SvCUR(sv) - append ? SvPVX(sv) : Nullch; |
79072805 LW |
2603 | } |
2604 | ||
2605 | void | |
2606 | sv_inc(sv) | |
2607 | register SV *sv; | |
2608 | { | |
2609 | register char *d; | |
463ee0b2 | 2610 | int flags; |
79072805 LW |
2611 | |
2612 | if (!sv) | |
2613 | return; | |
ed6116ce | 2614 | if (SvTHINKFIRST(sv)) { |
8990e307 | 2615 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce | 2616 | croak(no_modify); |
a0d0e21e LW |
2617 | if (SvROK(sv)) { |
2618 | #ifdef OVERLOAD | |
2619 | if (SvAMAGIC(sv) && AMG_CALLun(sv,inc)) return; | |
2620 | #endif /* OVERLOAD */ | |
2621 | sv_unref(sv); | |
2622 | } | |
ed6116ce | 2623 | } |
8990e307 | 2624 | if (SvGMAGICAL(sv)) |
79072805 | 2625 | mg_get(sv); |
8990e307 LW |
2626 | flags = SvFLAGS(sv); |
2627 | if (flags & SVp_IOK) { | |
463ee0b2 | 2628 | ++SvIVX(sv); |
a0d0e21e | 2629 | (void)SvIOK_only(sv); |
79072805 LW |
2630 | return; |
2631 | } | |
8990e307 | 2632 | if (flags & SVp_NOK) { |
463ee0b2 | 2633 | SvNVX(sv) += 1.0; |
a0d0e21e | 2634 | (void)SvNOK_only(sv); |
79072805 LW |
2635 | return; |
2636 | } | |
8990e307 | 2637 | if (!(flags & SVp_POK) || !*SvPVX(sv)) { |
4633a7c4 LW |
2638 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
2639 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 2640 | SvNVX(sv) = 1.0; |
a0d0e21e | 2641 | (void)SvNOK_only(sv); |
79072805 LW |
2642 | return; |
2643 | } | |
463ee0b2 | 2644 | d = SvPVX(sv); |
79072805 LW |
2645 | while (isALPHA(*d)) d++; |
2646 | while (isDIGIT(*d)) d++; | |
2647 | if (*d) { | |
463ee0b2 | 2648 | sv_setnv(sv,atof(SvPVX(sv)) + 1.0); /* punt */ |
79072805 LW |
2649 | return; |
2650 | } | |
2651 | d--; | |
463ee0b2 | 2652 | while (d >= SvPVX(sv)) { |
79072805 LW |
2653 | if (isDIGIT(*d)) { |
2654 | if (++*d <= '9') | |
2655 | return; | |
2656 | *(d--) = '0'; | |
2657 | } | |
2658 | else { | |
2659 | ++*d; | |
2660 | if (isALPHA(*d)) | |
2661 | return; | |
2662 | *(d--) -= 'z' - 'a' + 1; | |
2663 | } | |
2664 | } | |
2665 | /* oh,oh, the number grew */ | |
2666 | SvGROW(sv, SvCUR(sv) + 2); | |
2667 | SvCUR(sv)++; | |
463ee0b2 | 2668 | for (d = SvPVX(sv) + SvCUR(sv); d > SvPVX(sv); d--) |
79072805 LW |
2669 | *d = d[-1]; |
2670 | if (isDIGIT(d[1])) | |
2671 | *d = '1'; | |
2672 | else | |
2673 | *d = d[1]; | |
2674 | } | |
2675 | ||
2676 | void | |
2677 | sv_dec(sv) | |
2678 | register SV *sv; | |
2679 | { | |
463ee0b2 LW |
2680 | int flags; |
2681 | ||
79072805 LW |
2682 | if (!sv) |
2683 | return; | |
ed6116ce | 2684 | if (SvTHINKFIRST(sv)) { |
8990e307 | 2685 | if (SvREADONLY(sv) && curcop != &compiling) |
ed6116ce | 2686 | croak(no_modify); |
a0d0e21e LW |
2687 | if (SvROK(sv)) { |
2688 | #ifdef OVERLOAD | |
2689 | if (SvAMAGIC(sv) && AMG_CALLun(sv,dec)) return; | |
2690 | #endif /* OVERLOAD */ | |
2691 | sv_unref(sv); | |
2692 | } | |
ed6116ce | 2693 | } |
8990e307 | 2694 | if (SvGMAGICAL(sv)) |
79072805 | 2695 | mg_get(sv); |
8990e307 LW |
2696 | flags = SvFLAGS(sv); |
2697 | if (flags & SVp_IOK) { | |
463ee0b2 | 2698 | --SvIVX(sv); |
a0d0e21e | 2699 | (void)SvIOK_only(sv); |
79072805 LW |
2700 | return; |
2701 | } | |
8990e307 | 2702 | if (flags & SVp_NOK) { |
463ee0b2 | 2703 | SvNVX(sv) -= 1.0; |
a0d0e21e | 2704 | (void)SvNOK_only(sv); |
79072805 LW |
2705 | return; |
2706 | } | |
8990e307 | 2707 | if (!(flags & SVp_POK)) { |
4633a7c4 LW |
2708 | if ((flags & SVTYPEMASK) < SVt_PVNV) |
2709 | sv_upgrade(sv, SVt_NV); | |
463ee0b2 | 2710 | SvNVX(sv) = -1.0; |
a0d0e21e | 2711 | (void)SvNOK_only(sv); |
79072805 LW |
2712 | return; |
2713 | } | |
463ee0b2 | 2714 | sv_setnv(sv,atof(SvPVX(sv)) - 1.0); |
79072805 LW |
2715 | } |
2716 | ||
2717 | /* Make a string that will exist for the duration of the expression | |
2718 | * evaluation. Actually, it may have to last longer than that, but | |
2719 | * hopefully we won't free it until it has been assigned to a | |
2720 | * permanent location. */ | |
2721 | ||
8990e307 LW |
2722 | static void |
2723 | sv_mortalgrow() | |
2724 | { | |
2725 | tmps_max += 128; | |
2726 | Renew(tmps_stack, tmps_max, SV*); | |
2727 | } | |
2728 | ||
79072805 LW |
2729 | SV * |
2730 | sv_mortalcopy(oldstr) | |
2731 | SV *oldstr; | |
2732 | { | |
463ee0b2 | 2733 | register SV *sv; |
79072805 | 2734 | |
463ee0b2 | 2735 | new_SV(); |
8990e307 LW |
2736 | SvANY(sv) = 0; |
2737 | SvREFCNT(sv) = 1; | |
2738 | SvFLAGS(sv) = 0; | |
79072805 | 2739 | sv_setsv(sv,oldstr); |
8990e307 LW |
2740 | if (++tmps_ix >= tmps_max) |
2741 | sv_mortalgrow(); | |
2742 | tmps_stack[tmps_ix] = sv; | |
2743 | SvTEMP_on(sv); | |
2744 | return sv; | |
2745 | } | |
2746 | ||
2747 | SV * | |
2748 | sv_newmortal() | |
2749 | { | |
2750 | register SV *sv; | |
2751 | ||
2752 | new_SV(); | |
2753 | SvANY(sv) = 0; | |
2754 | SvREFCNT(sv) = 1; | |
2755 | SvFLAGS(sv) = SVs_TEMP; | |
2756 | if (++tmps_ix >= tmps_max) | |
2757 | sv_mortalgrow(); | |
79072805 | 2758 | tmps_stack[tmps_ix] = sv; |
79072805 LW |
2759 | return sv; |
2760 | } | |
2761 | ||
2762 | /* same thing without the copying */ | |
2763 | ||
2764 | SV * | |
2765 | sv_2mortal(sv) | |
2766 | register SV *sv; | |
2767 | { | |
2768 | if (!sv) | |
2769 | return sv; | |
a0d0e21e LW |
2770 | if (SvREADONLY(sv) && curcop != &compiling) |
2771 | croak(no_modify); | |
8990e307 LW |
2772 | if (++tmps_ix >= tmps_max) |
2773 | sv_mortalgrow(); | |
79072805 | 2774 | tmps_stack[tmps_ix] = sv; |
8990e307 | 2775 | SvTEMP_on(sv); |
79072805 LW |
2776 | return sv; |
2777 | } | |
2778 | ||
2779 | SV * | |
2780 | newSVpv(s,len) | |
2781 | char *s; | |
2782 | STRLEN len; | |
2783 | { | |
463ee0b2 | 2784 | register SV *sv; |
79072805 | 2785 | |
463ee0b2 | 2786 | new_SV(); |
8990e307 LW |
2787 | SvANY(sv) = 0; |
2788 | SvREFCNT(sv) = 1; | |
2789 | SvFLAGS(sv) = 0; | |
79072805 LW |
2790 | if (!len) |
2791 | len = strlen(s); | |
2792 | sv_setpvn(sv,s,len); | |
2793 | return sv; | |
2794 | } | |
2795 | ||
2796 | SV * | |
2797 | newSVnv(n) | |
2798 | double n; | |
2799 | { | |
463ee0b2 | 2800 | register SV *sv; |
79072805 | 2801 | |
463ee0b2 | 2802 | new_SV(); |
8990e307 LW |
2803 | SvANY(sv) = 0; |
2804 | SvREFCNT(sv) = 1; | |
2805 | SvFLAGS(sv) = 0; | |
79072805 LW |
2806 | sv_setnv(sv,n); |
2807 | return sv; | |
2808 | } | |
2809 | ||
2810 | SV * | |
2811 | newSViv(i) | |
a0d0e21e | 2812 | IV i; |
79072805 | 2813 | { |
463ee0b2 | 2814 | register SV *sv; |
79072805 | 2815 | |
463ee0b2 | 2816 | new_SV(); |
8990e307 LW |
2817 | SvANY(sv) = 0; |
2818 | SvREFCNT(sv) = 1; | |
2819 | SvFLAGS(sv) = 0; | |
79072805 LW |
2820 | sv_setiv(sv,i); |
2821 | return sv; | |
2822 | } | |
2823 | ||
2304df62 AD |
2824 | SV * |
2825 | newRV(ref) | |
2826 | SV *ref; | |
2827 | { | |
2828 | register SV *sv; | |
2829 | ||
2830 | new_SV(); | |
2831 | SvANY(sv) = 0; | |
2832 | SvREFCNT(sv) = 1; | |
2833 | SvFLAGS(sv) = 0; | |
2834 | sv_upgrade(sv, SVt_RV); | |
a0d0e21e | 2835 | SvTEMP_off(ref); |
2304df62 AD |
2836 | SvRV(sv) = SvREFCNT_inc(ref); |
2837 | SvROK_on(sv); | |
2304df62 AD |
2838 | return sv; |
2839 | } | |
2840 | ||
79072805 LW |
2841 | /* make an exact duplicate of old */ |
2842 | ||
2843 | SV * | |
2844 | newSVsv(old) | |
2845 | register SV *old; | |
2846 | { | |
463ee0b2 | 2847 | register SV *sv; |
79072805 LW |
2848 | |
2849 | if (!old) | |
2850 | return Nullsv; | |
8990e307 | 2851 | if (SvTYPE(old) == SVTYPEMASK) { |
79072805 LW |
2852 | warn("semi-panic: attempt to dup freed string"); |
2853 | return Nullsv; | |
2854 | } | |
463ee0b2 | 2855 | new_SV(); |
8990e307 LW |
2856 | SvANY(sv) = 0; |
2857 | SvREFCNT(sv) = 1; | |
2858 | SvFLAGS(sv) = 0; | |
79072805 LW |
2859 | if (SvTEMP(old)) { |
2860 | SvTEMP_off(old); | |
463ee0b2 | 2861 | sv_setsv(sv,old); |
79072805 LW |
2862 | SvTEMP_on(old); |
2863 | } | |
2864 | else | |
463ee0b2 LW |
2865 | sv_setsv(sv,old); |
2866 | return sv; | |
79072805 LW |
2867 | } |
2868 | ||
2869 | void | |
2870 | sv_reset(s,stash) | |
2871 | register char *s; | |
2872 | HV *stash; | |
2873 | { | |
2874 | register HE *entry; | |
2875 | register GV *gv; | |
2876 | register SV *sv; | |
2877 | register I32 i; | |
2878 | register PMOP *pm; | |
2879 | register I32 max; | |
463ee0b2 | 2880 | char todo[256]; |
79072805 LW |
2881 | |
2882 | if (!*s) { /* reset ?? searches */ | |
2883 | for (pm = HvPMROOT(stash); pm; pm = pm->op_pmnext) { | |
2884 | pm->op_pmflags &= ~PMf_USED; | |
2885 | } | |
2886 | return; | |
2887 | } | |
2888 | ||
2889 | /* reset variables */ | |
2890 | ||
2891 | if (!HvARRAY(stash)) | |
2892 | return; | |
463ee0b2 LW |
2893 | |
2894 | Zero(todo, 256, char); | |
79072805 LW |
2895 | while (*s) { |
2896 | i = *s; | |
2897 | if (s[1] == '-') { | |
2898 | s += 2; | |
2899 | } | |
2900 | max = *s++; | |
2901 | for ( ; i <= max; i++) { | |
463ee0b2 LW |
2902 | todo[i] = 1; |
2903 | } | |
a0d0e21e | 2904 | for (i = 0; i <= (I32) HvMAX(stash); i++) { |
79072805 LW |
2905 | for (entry = HvARRAY(stash)[i]; |
2906 | entry; | |
2907 | entry = entry->hent_next) { | |
463ee0b2 LW |
2908 | if (!todo[(U8)*entry->hent_key]) |
2909 | continue; | |
79072805 LW |
2910 | gv = (GV*)entry->hent_val; |
2911 | sv = GvSV(gv); | |
a0d0e21e | 2912 | (void)SvOK_off(sv); |
79072805 LW |
2913 | if (SvTYPE(sv) >= SVt_PV) { |
2914 | SvCUR_set(sv, 0); | |
463ee0b2 LW |
2915 | SvTAINT(sv); |
2916 | if (SvPVX(sv) != Nullch) | |
2917 | *SvPVX(sv) = '\0'; | |
79072805 LW |
2918 | } |
2919 | if (GvAV(gv)) { | |
2920 | av_clear(GvAV(gv)); | |
2921 | } | |
2922 | if (GvHV(gv)) { | |
a0d0e21e LW |
2923 | if (HvNAME(GvHV(gv))) |
2924 | continue; | |
463ee0b2 | 2925 | hv_clear(GvHV(gv)); |
a0d0e21e | 2926 | #ifndef VMS /* VMS has no environ array */ |
79072805 LW |
2927 | if (gv == envgv) |
2928 | environ[0] = Nullch; | |
a0d0e21e | 2929 | #endif |
79072805 LW |
2930 | } |
2931 | } | |
2932 | } | |
2933 | } | |
2934 | } | |
2935 | ||
79072805 LW |
2936 | CV * |
2937 | sv_2cv(sv, st, gvp, lref) | |
2938 | SV *sv; | |
2939 | HV **st; | |
2940 | GV **gvp; | |
2941 | I32 lref; | |
2942 | { | |
2943 | GV *gv; | |
2944 | CV *cv; | |
2945 | ||
2946 | if (!sv) | |
93a17b20 | 2947 | return *gvp = Nullgv, Nullcv; |
79072805 | 2948 | switch (SvTYPE(sv)) { |
79072805 LW |
2949 | case SVt_PVCV: |
2950 | *st = CvSTASH(sv); | |
2951 | *gvp = Nullgv; | |
2952 | return (CV*)sv; | |
2953 | case SVt_PVHV: | |
2954 | case SVt_PVAV: | |
2955 | *gvp = Nullgv; | |
2956 | return Nullcv; | |
8990e307 LW |
2957 | case SVt_PVGV: |
2958 | gv = (GV*)sv; | |
a0d0e21e | 2959 | *gvp = gv; |
8990e307 LW |
2960 | *st = GvESTASH(gv); |
2961 | goto fix_gv; | |
2962 | ||
79072805 | 2963 | default: |
a0d0e21e LW |
2964 | if (SvGMAGICAL(sv)) |
2965 | mg_get(sv); | |
2966 | if (SvROK(sv)) { | |
2967 | cv = (CV*)SvRV(sv); | |
2968 | if (SvTYPE(cv) != SVt_PVCV) | |
2969 | croak("Not a subroutine reference"); | |
2970 | *gvp = Nullgv; | |
2971 | *st = CvSTASH(cv); | |
2972 | return cv; | |
2973 | } | |
79072805 LW |
2974 | if (isGV(sv)) |
2975 | gv = (GV*)sv; | |
2976 | else | |
85e6fe83 | 2977 | gv = gv_fetchpv(SvPV(sv, na), lref, SVt_PVCV); |
79072805 LW |
2978 | *gvp = gv; |
2979 | if (!gv) | |
2980 | return Nullcv; | |
2981 | *st = GvESTASH(gv); | |
8990e307 LW |
2982 | fix_gv: |
2983 | if (lref && !GvCV(gv)) { | |
4633a7c4 | 2984 | SV *tmpsv; |
748a9306 | 2985 | ENTER; |
4633a7c4 LW |
2986 | tmpsv = NEWSV(704,0); |
2987 | gv_efullname(tmpsv, gv); | |
748a9306 | 2988 | newSUB(start_subparse(), |
4633a7c4 LW |
2989 | newSVOP(OP_CONST, 0, tmpsv), |
2990 | Nullop, | |
8990e307 | 2991 | Nullop); |
748a9306 | 2992 | LEAVE; |
4633a7c4 LW |
2993 | if (!GvCV(gv)) |
2994 | croak("Unable to create sub named \"%s\"", SvPV(sv,na)); | |
8990e307 | 2995 | } |
79072805 LW |
2996 | return GvCV(gv); |
2997 | } | |
2998 | } | |
2999 | ||
3000 | #ifndef SvTRUE | |
3001 | I32 | |
3002 | SvTRUE(sv) | |
3003 | register SV *sv; | |
3004 | { | |
8990e307 LW |
3005 | if (!sv) |
3006 | return 0; | |
3007 | if (SvGMAGICAL(sv)) | |
79072805 LW |
3008 | mg_get(sv); |
3009 | if (SvPOK(sv)) { | |
3010 | register XPV* Xpv; | |
3011 | if ((Xpv = (XPV*)SvANY(sv)) && | |
3012 | (*Xpv->xpv_pv > '0' || | |
3013 | Xpv->xpv_cur > 1 || | |
3014 | (Xpv->xpv_cur && *Xpv->xpv_pv != '0'))) | |
3015 | return 1; | |
3016 | else | |
3017 | return 0; | |
3018 | } | |
3019 | else { | |
3020 | if (SvIOK(sv)) | |
463ee0b2 | 3021 | return SvIVX(sv) != 0; |
79072805 LW |
3022 | else { |
3023 | if (SvNOK(sv)) | |
463ee0b2 | 3024 | return SvNVX(sv) != 0.0; |
79072805 | 3025 | else |
463ee0b2 | 3026 | return sv_2bool(sv); |
79072805 LW |
3027 | } |
3028 | } | |
3029 | } | |
3030 | #endif /* SvTRUE */ | |
3031 | ||
85e6fe83 | 3032 | #ifndef SvIV |
a0d0e21e | 3033 | IV SvIV(Sv) |
85e6fe83 LW |
3034 | register SV *Sv; |
3035 | { | |
3036 | if (SvIOK(Sv)) | |
3037 | return SvIVX(Sv); | |
3038 | return sv_2iv(Sv); | |
3039 | } | |
3040 | #endif /* SvIV */ | |
3041 | ||
3042 | ||
463ee0b2 LW |
3043 | #ifndef SvNV |
3044 | double SvNV(Sv) | |
79072805 LW |
3045 | register SV *Sv; |
3046 | { | |
79072805 | 3047 | if (SvNOK(Sv)) |
463ee0b2 | 3048 | return SvNVX(Sv); |
79072805 | 3049 | if (SvIOK(Sv)) |
463ee0b2 | 3050 | return (double)SvIVX(Sv); |
79072805 LW |
3051 | return sv_2nv(Sv); |
3052 | } | |
463ee0b2 | 3053 | #endif /* SvNV */ |
79072805 | 3054 | |
463ee0b2 | 3055 | #ifdef CRIPPLED_CC |
79072805 | 3056 | char * |
463ee0b2 | 3057 | sv_pvn(sv, lp) |
79072805 | 3058 | SV *sv; |
463ee0b2 | 3059 | STRLEN *lp; |
79072805 | 3060 | { |
85e6fe83 LW |
3061 | if (SvPOK(sv)) { |
3062 | *lp = SvCUR(sv); | |
a0d0e21e | 3063 | return SvPVX(sv); |
85e6fe83 | 3064 | } |
463ee0b2 | 3065 | return sv_2pv(sv, lp); |
79072805 LW |
3066 | } |
3067 | #endif | |
3068 | ||
a0d0e21e LW |
3069 | char * |
3070 | sv_pvn_force(sv, lp) | |
3071 | SV *sv; | |
3072 | STRLEN *lp; | |
3073 | { | |
3074 | char *s; | |
3075 | ||
3076 | if (SvREADONLY(sv) && curcop != &compiling) | |
3077 | croak(no_modify); | |
3078 | ||
3079 | if (SvPOK(sv)) { | |
3080 | *lp = SvCUR(sv); | |
3081 | } | |
3082 | else { | |
748a9306 | 3083 | if (SvTYPE(sv) > SVt_PVLV && SvTYPE(sv) != SVt_PVFM) { |
4633a7c4 | 3084 | if (SvFAKE(sv) && SvTYPE(sv) == SVt_PVGV) { |
a0d0e21e | 3085 | sv_unglob(sv); |
4633a7c4 LW |
3086 | s = SvPVX(sv); |
3087 | *lp = SvCUR(sv); | |
3088 | } | |
a0d0e21e LW |
3089 | else |
3090 | croak("Can't coerce %s to string in %s", sv_reftype(sv,0), | |
3091 | op_name[op->op_type]); | |
3092 | } | |
4633a7c4 LW |
3093 | else |
3094 | s = sv_2pv(sv, lp); | |
a0d0e21e LW |
3095 | if (s != SvPVX(sv)) { /* Almost, but not quite, sv_setpvn() */ |
3096 | STRLEN len = *lp; | |
3097 | ||
3098 | if (SvROK(sv)) | |
3099 | sv_unref(sv); | |
3100 | (void)SvUPGRADE(sv, SVt_PV); /* Never FALSE */ | |
3101 | SvGROW(sv, len + 1); | |
3102 | Move(s,SvPVX(sv),len,char); | |
3103 | SvCUR_set(sv, len); | |
3104 | *SvEND(sv) = '\0'; | |
3105 | } | |
3106 | if (!SvPOK(sv)) { | |
3107 | SvPOK_on(sv); /* validate pointer */ | |
3108 | SvTAINT(sv); | |
3109 | DEBUG_c(fprintf(stderr,"0x%lx 2pv(%s)\n", | |
3110 | (unsigned long)sv,SvPVX(sv))); | |
3111 | } | |
3112 | } | |
3113 | return SvPVX(sv); | |
3114 | } | |
3115 | ||
3116 | char * | |
3117 | sv_reftype(sv, ob) | |
3118 | SV* sv; | |
3119 | int ob; | |
3120 | { | |
3121 | if (ob && SvOBJECT(sv)) | |
3122 | return HvNAME(SvSTASH(sv)); | |
3123 | else { | |
3124 | switch (SvTYPE(sv)) { | |
3125 | case SVt_NULL: | |
3126 | case SVt_IV: | |
3127 | case SVt_NV: | |
3128 | case SVt_RV: | |
3129 | case SVt_PV: | |
3130 | case SVt_PVIV: | |
3131 | case SVt_PVNV: | |
3132 | case SVt_PVMG: | |
3133 | case SVt_PVBM: | |
3134 | if (SvROK(sv)) | |
3135 | return "REF"; | |
3136 | else | |
3137 | return "SCALAR"; | |
3138 | case SVt_PVLV: return "LVALUE"; | |
3139 | case SVt_PVAV: return "ARRAY"; | |
3140 | case SVt_PVHV: return "HASH"; | |
3141 | case SVt_PVCV: return "CODE"; | |
3142 | case SVt_PVGV: return "GLOB"; | |
3143 | case SVt_PVFM: return "FORMLINE"; | |
3144 | default: return "UNKNOWN"; | |
3145 | } | |
3146 | } | |
3147 | } | |
3148 | ||
463ee0b2 | 3149 | int |
85e6fe83 LW |
3150 | sv_isobject(sv) |
3151 | SV *sv; | |
3152 | { | |
3153 | if (!SvROK(sv)) | |
3154 | return 0; | |
3155 | sv = (SV*)SvRV(sv); | |
3156 | if (!SvOBJECT(sv)) | |
3157 | return 0; | |
3158 | return 1; | |
3159 | } | |
3160 | ||
3161 | int | |
463ee0b2 LW |
3162 | sv_isa(sv, name) |
3163 | SV *sv; | |
3164 | char *name; | |
3165 | { | |
ed6116ce | 3166 | if (!SvROK(sv)) |
463ee0b2 | 3167 | return 0; |
ed6116ce LW |
3168 | sv = (SV*)SvRV(sv); |
3169 | if (!SvOBJECT(sv)) | |
463ee0b2 LW |
3170 | return 0; |
3171 | ||
3172 | return strEQ(HvNAME(SvSTASH(sv)), name); | |
3173 | } | |
3174 | ||
3175 | SV* | |
a0d0e21e | 3176 | newSVrv(rv, classname) |
463ee0b2 | 3177 | SV *rv; |
a0d0e21e | 3178 | char *classname; |
463ee0b2 | 3179 | { |
463ee0b2 LW |
3180 | SV *sv; |
3181 | ||
463ee0b2 | 3182 | new_SV(); |
8990e307 | 3183 | SvANY(sv) = 0; |
a0d0e21e | 3184 | SvREFCNT(sv) = 0; |
8990e307 | 3185 | SvFLAGS(sv) = 0; |
ed6116ce | 3186 | sv_upgrade(rv, SVt_RV); |
8990e307 | 3187 | SvRV(rv) = SvREFCNT_inc(sv); |
ed6116ce | 3188 | SvROK_on(rv); |
463ee0b2 | 3189 | |
a0d0e21e LW |
3190 | if (classname) { |
3191 | HV* stash = gv_stashpv(classname, TRUE); | |
3192 | (void)sv_bless(rv, stash); | |
3193 | } | |
3194 | return sv; | |
3195 | } | |
3196 | ||
3197 | SV* | |
3198 | sv_setref_pv(rv, classname, pv) | |
3199 | SV *rv; | |
3200 | char *classname; | |
3201 | void* pv; | |
3202 | { | |
3203 | if (!pv) | |
3204 | sv_setsv(rv, &sv_undef); | |
3205 | else | |
3206 | sv_setiv(newSVrv(rv,classname), (IV)pv); | |
3207 | return rv; | |
3208 | } | |
3209 | ||
3210 | SV* | |
3211 | sv_setref_iv(rv, classname, iv) | |
3212 | SV *rv; | |
3213 | char *classname; | |
3214 | IV iv; | |
3215 | { | |
3216 | sv_setiv(newSVrv(rv,classname), iv); | |
3217 | return rv; | |
3218 | } | |
3219 | ||
3220 | SV* | |
3221 | sv_setref_nv(rv, classname, nv) | |
3222 | SV *rv; | |
3223 | char *classname; | |
3224 | double nv; | |
3225 | { | |
3226 | sv_setnv(newSVrv(rv,classname), nv); | |
3227 | return rv; | |
3228 | } | |
463ee0b2 | 3229 | |
a0d0e21e LW |
3230 | SV* |
3231 | sv_setref_pvn(rv, classname, pv, n) | |
3232 | SV *rv; | |
3233 | char *classname; | |
3234 | char* pv; | |
3235 | I32 n; | |
3236 | { | |
3237 | sv_setpvn(newSVrv(rv,classname), pv, n); | |
463ee0b2 LW |
3238 | return rv; |
3239 | } | |
3240 | ||
a0d0e21e LW |
3241 | SV* |
3242 | sv_bless(sv,stash) | |
3243 | SV* sv; | |
3244 | HV* stash; | |
3245 | { | |
3246 | SV *ref; | |
3247 | if (!SvROK(sv)) | |
3248 | croak("Can't bless non-reference value"); | |
3249 | ref = SvRV(sv); | |
3250 | if (SvFLAGS(ref) & (SVs_OBJECT|SVf_READONLY)) { | |
3251 | if (SvREADONLY(ref)) | |
3252 | croak(no_modify); | |
3253 | if (SvOBJECT(ref) && SvTYPE(ref) != SVt_PVIO) | |
3254 | --sv_objcount; | |
3255 | } | |
3256 | SvOBJECT_on(ref); | |
3257 | ++sv_objcount; | |
3258 | (void)SvUPGRADE(ref, SVt_PVMG); | |
3259 | SvSTASH(ref) = (HV*)SvREFCNT_inc(stash); | |
3260 | ||
3261 | #ifdef OVERLOAD | |
748a9306 | 3262 | SvAMAGIC_off(sv); |
a0d0e21e LW |
3263 | if (Gv_AMG(stash)) { |
3264 | SvAMAGIC_on(sv); | |
3265 | } | |
3266 | #endif /* OVERLOAD */ | |
3267 | ||
3268 | return sv; | |
3269 | } | |
3270 | ||
3271 | static void | |
3272 | sv_unglob(sv) | |
3273 | SV* sv; | |
3274 | { | |
3275 | assert(SvTYPE(sv) == SVt_PVGV); | |
3276 | SvFAKE_off(sv); | |
3277 | if (GvGP(sv)) | |
3278 | gp_free(sv); | |
3279 | sv_unmagic(sv, '*'); | |
3280 | Safefree(GvNAME(sv)); | |
8e07c86e | 3281 | SvMULTI_off(sv); |
a0d0e21e LW |
3282 | SvFLAGS(sv) &= ~SVTYPEMASK; |
3283 | SvFLAGS(sv) |= SVt_PVMG; | |
3284 | } | |
3285 | ||
ed6116ce LW |
3286 | void |
3287 | sv_unref(sv) | |
3288 | SV* sv; | |
3289 | { | |
a0d0e21e LW |
3290 | SV* rv = SvRV(sv); |
3291 | ||
ed6116ce LW |
3292 | SvRV(sv) = 0; |
3293 | SvROK_off(sv); | |
4633a7c4 LW |
3294 | if (SvREFCNT(rv) != 1 || SvREADONLY(rv)) |
3295 | SvREFCNT_dec(rv); | |
8e07c86e | 3296 | else |
4633a7c4 | 3297 | sv_2mortal(rv); /* Schedule for freeing later */ |
ed6116ce | 3298 | } |
8990e307 LW |
3299 | |
3300 | #ifdef DEBUGGING | |
3301 | void | |
3302 | sv_dump(sv) | |
3303 | SV* sv; | |
3304 | { | |
3305 | char tmpbuf[1024]; | |
3306 | char *d = tmpbuf; | |
3307 | U32 flags; | |
3308 | U32 type; | |
3309 | ||
3310 | if (!sv) { | |
3311 | fprintf(stderr, "SV = 0\n"); | |
3312 | return; | |
3313 | } | |
3314 | ||
3315 | flags = SvFLAGS(sv); | |
3316 | type = SvTYPE(sv); | |
3317 | ||
3318 | sprintf(d, "(0x%lx)\n REFCNT = %ld\n FLAGS = (", | |
3319 | (unsigned long)SvANY(sv), (long)SvREFCNT(sv)); | |
3320 | d += strlen(d); | |
3321 | if (flags & SVs_PADBUSY) strcat(d, "PADBUSY,"); | |
3322 | if (flags & SVs_PADTMP) strcat(d, "PADTMP,"); | |
3323 | if (flags & SVs_PADMY) strcat(d, "PADMY,"); | |
3324 | if (flags & SVs_TEMP) strcat(d, "TEMP,"); | |
3325 | if (flags & SVs_OBJECT) strcat(d, "OBJECT,"); | |
3326 | if (flags & SVs_GMG) strcat(d, "GMG,"); | |
3327 | if (flags & SVs_SMG) strcat(d, "SMG,"); | |
3328 | if (flags & SVs_RMG) strcat(d, "RMG,"); | |
3329 | d += strlen(d); | |
3330 | ||
3331 | if (flags & SVf_IOK) strcat(d, "IOK,"); | |
3332 | if (flags & SVf_NOK) strcat(d, "NOK,"); | |
3333 | if (flags & SVf_POK) strcat(d, "POK,"); | |
3334 | if (flags & SVf_ROK) strcat(d, "ROK,"); | |
8990e307 | 3335 | if (flags & SVf_OOK) strcat(d, "OOK,"); |
a0d0e21e | 3336 | if (flags & SVf_FAKE) strcat(d, "FAKE,"); |
8990e307 LW |
3337 | if (flags & SVf_READONLY) strcat(d, "READONLY,"); |
3338 | d += strlen(d); | |
3339 | ||
3340 | if (flags & SVp_IOK) strcat(d, "pIOK,"); | |
3341 | if (flags & SVp_NOK) strcat(d, "pNOK,"); | |
3342 | if (flags & SVp_POK) strcat(d, "pPOK,"); | |
3343 | if (flags & SVp_SCREAM) strcat(d, "SCREAM,"); | |
3344 | d += strlen(d); | |
3345 | if (d[-1] == ',') | |
3346 | d--; | |
3347 | *d++ = ')'; | |
3348 | *d = '\0'; | |
3349 | ||
3350 | fprintf(stderr, "SV = "); | |
3351 | switch (type) { | |
3352 | case SVt_NULL: | |
3353 | fprintf(stderr,"NULL%s\n", tmpbuf); | |
3354 | return; | |
3355 | case SVt_IV: | |
3356 | fprintf(stderr,"IV%s\n", tmpbuf); | |
3357 | break; | |
3358 | case SVt_NV: | |
3359 | fprintf(stderr,"NV%s\n", tmpbuf); | |
3360 | break; | |
3361 | case SVt_RV: | |
3362 | fprintf(stderr,"RV%s\n", tmpbuf); | |
3363 | break; | |
3364 | case SVt_PV: | |
3365 | fprintf(stderr,"PV%s\n", tmpbuf); | |
3366 | break; | |
3367 | case SVt_PVIV: | |
3368 | fprintf(stderr,"PVIV%s\n", tmpbuf); | |
3369 | break; | |
3370 | case SVt_PVNV: | |
3371 | fprintf(stderr,"PVNV%s\n", tmpbuf); | |
3372 | break; | |
3373 | case SVt_PVBM: | |
3374 | fprintf(stderr,"PVBM%s\n", tmpbuf); | |
3375 | break; | |
3376 | case SVt_PVMG: | |
3377 | fprintf(stderr,"PVMG%s\n", tmpbuf); | |
3378 | break; | |
3379 | case SVt_PVLV: | |
3380 | fprintf(stderr,"PVLV%s\n", tmpbuf); | |
3381 | break; | |
3382 | case SVt_PVAV: | |
3383 | fprintf(stderr,"PVAV%s\n", tmpbuf); | |
3384 | break; | |
3385 | case SVt_PVHV: | |
3386 | fprintf(stderr,"PVHV%s\n", tmpbuf); | |
3387 | break; | |
3388 | case SVt_PVCV: | |
3389 | fprintf(stderr,"PVCV%s\n", tmpbuf); | |
3390 | break; | |
3391 | case SVt_PVGV: | |
3392 | fprintf(stderr,"PVGV%s\n", tmpbuf); | |
3393 | break; | |
3394 | case SVt_PVFM: | |
3395 | fprintf(stderr,"PVFM%s\n", tmpbuf); | |
3396 | break; | |
3397 | case SVt_PVIO: | |
3398 | fprintf(stderr,"PVIO%s\n", tmpbuf); | |
3399 | break; | |
3400 | default: | |
3401 | fprintf(stderr,"UNKNOWN%s\n", tmpbuf); | |
3402 | return; | |
3403 | } | |
3404 | if (type >= SVt_PVIV || type == SVt_IV) | |
3405 | fprintf(stderr, " IV = %ld\n", (long)SvIVX(sv)); | |
3406 | if (type >= SVt_PVNV || type == SVt_NV) | |
a0d0e21e | 3407 | fprintf(stderr, " NV = %.*g\n", DBL_DIG, SvNVX(sv)); |
8990e307 | 3408 | if (SvROK(sv)) { |
a0d0e21e | 3409 | fprintf(stderr, " RV = 0x%lx\n", (long)SvRV(sv)); |
8990e307 LW |
3410 | sv_dump(SvRV(sv)); |
3411 | return; | |
3412 | } | |
3413 | if (type < SVt_PV) | |
3414 | return; | |
3415 | if (type <= SVt_PVLV) { | |
3416 | if (SvPVX(sv)) | |
3417 | fprintf(stderr, " PV = 0x%lx \"%s\"\n CUR = %ld\n LEN = %ld\n", | |
a0d0e21e | 3418 | (long)SvPVX(sv), SvPVX(sv), (long)SvCUR(sv), (long)SvLEN(sv)); |
8990e307 LW |
3419 | else |
3420 | fprintf(stderr, " PV = 0\n"); | |
3421 | } | |
3422 | if (type >= SVt_PVMG) { | |
3423 | if (SvMAGIC(sv)) { | |
a0d0e21e | 3424 | fprintf(stderr, " MAGIC = 0x%lx\n", (long)SvMAGIC(sv)); |
8990e307 LW |
3425 | } |
3426 | if (SvSTASH(sv)) | |
3427 | fprintf(stderr, " STASH = %s\n", HvNAME(SvSTASH(sv))); | |
3428 | } | |
3429 | switch (type) { | |
3430 | case SVt_PVLV: | |
3431 | fprintf(stderr, " TYPE = %c\n", LvTYPE(sv)); | |
3432 | fprintf(stderr, " TARGOFF = %ld\n", (long)LvTARGOFF(sv)); | |
3433 | fprintf(stderr, " TARGLEN = %ld\n", (long)LvTARGLEN(sv)); | |
a0d0e21e | 3434 | fprintf(stderr, " TARG = 0x%lx\n", (long)LvTARG(sv)); |
8990e307 LW |
3435 | sv_dump(LvTARG(sv)); |
3436 | break; | |
3437 | case SVt_PVAV: | |
a0d0e21e LW |
3438 | fprintf(stderr, " ARRAY = 0x%lx\n", (long)AvARRAY(sv)); |
3439 | fprintf(stderr, " ALLOC = 0x%lx\n", (long)AvALLOC(sv)); | |
8990e307 LW |
3440 | fprintf(stderr, " FILL = %ld\n", (long)AvFILL(sv)); |
3441 | fprintf(stderr, " MAX = %ld\n", (long)AvMAX(sv)); | |
a0d0e21e | 3442 | fprintf(stderr, " ARYLEN = 0x%lx\n", (long)AvARYLEN(sv)); |
4633a7c4 LW |
3443 | flags = AvFLAGS(sv); |
3444 | d = tmpbuf; | |
3445 | if (flags & AVf_REAL) strcat(d, "REAL,"); | |
3446 | if (flags & AVf_REIFY) strcat(d, "REIFY,"); | |
3447 | if (flags & AVf_REUSED) strcat(d, "REUSED,"); | |
3448 | if (*d) | |
3449 | d[strlen(d)-1] = '\0'; | |
3450 | fprintf(stderr, " FLAGS = (%s)\n", d); | |
8990e307 LW |
3451 | break; |
3452 | case SVt_PVHV: | |
a0d0e21e | 3453 | fprintf(stderr, " ARRAY = 0x%lx\n",(long)HvARRAY(sv)); |
8990e307 LW |
3454 | fprintf(stderr, " KEYS = %ld\n", (long)HvKEYS(sv)); |
3455 | fprintf(stderr, " FILL = %ld\n", (long)HvFILL(sv)); | |
3456 | fprintf(stderr, " MAX = %ld\n", (long)HvMAX(sv)); | |
3457 | fprintf(stderr, " RITER = %ld\n", (long)HvRITER(sv)); | |
a0d0e21e | 3458 | fprintf(stderr, " EITER = 0x%lx\n",(long) HvEITER(sv)); |
8990e307 | 3459 | if (HvPMROOT(sv)) |
a0d0e21e | 3460 | fprintf(stderr, " PMROOT = 0x%lx\n",(long)HvPMROOT(sv)); |
8990e307 LW |
3461 | if (HvNAME(sv)) |
3462 | fprintf(stderr, " NAME = \"%s\"\n", HvNAME(sv)); | |
3463 | break; | |
3464 | case SVt_PVFM: | |
3465 | case SVt_PVCV: | |
a0d0e21e LW |
3466 | fprintf(stderr, " STASH = 0x%lx\n", (long)CvSTASH(sv)); |
3467 | fprintf(stderr, " START = 0x%lx\n", (long)CvSTART(sv)); | |
3468 | fprintf(stderr, " ROOT = 0x%lx\n", (long)CvROOT(sv)); | |
3469 | fprintf(stderr, " XSUB = 0x%lx\n", (long)CvXSUB(sv)); | |
3470 | fprintf(stderr, " XSUBANY = %ld\n", (long)CvXSUBANY(sv).any_i32); | |
3471 | fprintf(stderr, " FILEGV = 0x%lx\n", (long)CvFILEGV(sv)); | |
8990e307 | 3472 | fprintf(stderr, " DEPTH = %ld\n", (long)CvDEPTH(sv)); |
a0d0e21e | 3473 | fprintf(stderr, " PADLIST = 0x%lx\n", (long)CvPADLIST(sv)); |
e9a444f0 | 3474 | fprintf(stderr, " OUTSIDE = 0x%lx\n", (long)CvOUTSIDE(sv)); |
8990e307 LW |
3475 | if (type == SVt_PVFM) |
3476 | fprintf(stderr, " LINES = %ld\n", (long)FmLINES(sv)); | |
3477 | break; | |
3478 | case SVt_PVGV: | |
3479 | fprintf(stderr, " NAME = %s\n", GvNAME(sv)); | |
3480 | fprintf(stderr, " NAMELEN = %ld\n", (long)GvNAMELEN(sv)); | |
a0d0e21e LW |
3481 | fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv)); |
3482 | fprintf(stderr, " GP = 0x%lx\n", (long)GvGP(sv)); | |
3483 | fprintf(stderr, " SV = 0x%lx\n", (long)GvSV(sv)); | |
8990e307 | 3484 | fprintf(stderr, " REFCNT = %ld\n", (long)GvREFCNT(sv)); |
a0d0e21e LW |
3485 | fprintf(stderr, " IO = 0x%lx\n", (long)GvIOp(sv)); |
3486 | fprintf(stderr, " FORM = 0x%lx\n", (long)GvFORM(sv)); | |
3487 | fprintf(stderr, " AV = 0x%lx\n", (long)GvAV(sv)); | |
3488 | fprintf(stderr, " HV = 0x%lx\n", (long)GvHV(sv)); | |
3489 | fprintf(stderr, " CV = 0x%lx\n", (long)GvCV(sv)); | |
3490 | fprintf(stderr, " CVGEN = 0x%lx\n", (long)GvCVGEN(sv)); | |
8990e307 LW |
3491 | fprintf(stderr, " LASTEXPR = %ld\n", (long)GvLASTEXPR(sv)); |
3492 | fprintf(stderr, " LINE = %ld\n", (long)GvLINE(sv)); | |
3493 | fprintf(stderr, " FLAGS = 0x%x\n", (int)GvFLAGS(sv)); | |
a0d0e21e LW |
3494 | fprintf(stderr, " STASH = 0x%lx\n", (long)GvSTASH(sv)); |
3495 | fprintf(stderr, " EGV = 0x%lx\n", (long)GvEGV(sv)); | |
8990e307 LW |
3496 | break; |
3497 | case SVt_PVIO: | |
a0d0e21e LW |
3498 | fprintf(stderr, " IFP = 0x%lx\n", (long)IoIFP(sv)); |
3499 | fprintf(stderr, " OFP = 0x%lx\n", (long)IoOFP(sv)); | |
3500 | fprintf(stderr, " DIRP = 0x%lx\n", (long)IoDIRP(sv)); | |
8990e307 LW |
3501 | fprintf(stderr, " LINES = %ld\n", (long)IoLINES(sv)); |
3502 | fprintf(stderr, " PAGE = %ld\n", (long)IoPAGE(sv)); | |
3503 | fprintf(stderr, " PAGE_LEN = %ld\n", (long)IoPAGE_LEN(sv)); | |
3504 | fprintf(stderr, " LINES_LEFT = %ld\n", (long)IoLINES_LEFT(sv)); | |
3505 | fprintf(stderr, " TOP_NAME = %s\n", IoTOP_NAME(sv)); | |
a0d0e21e | 3506 | fprintf(stderr, " TOP_GV = 0x%lx\n", (long)IoTOP_GV(sv)); |
8990e307 | 3507 | fprintf(stderr, " FMT_NAME = %s\n", IoFMT_NAME(sv)); |
a0d0e21e | 3508 | fprintf(stderr, " FMT_GV = 0x%lx\n", (long)IoFMT_GV(sv)); |
8990e307 | 3509 | fprintf(stderr, " BOTTOM_NAME = %s\n", IoBOTTOM_NAME(sv)); |
a0d0e21e | 3510 | fprintf(stderr, " BOTTOM_GV = 0x%lx\n", (long)IoBOTTOM_GV(sv)); |
8990e307 LW |
3511 | fprintf(stderr, " SUBPROCESS = %ld\n", (long)IoSUBPROCESS(sv)); |
3512 | fprintf(stderr, " TYPE = %c\n", IoTYPE(sv)); | |
a0d0e21e | 3513 | fprintf(stderr, " FLAGS = 0x%lx\n", (long)IoFLAGS(sv)); |
8990e307 LW |
3514 | break; |
3515 | } | |
3516 | } | |
2304df62 AD |
3517 | #else |
3518 | void | |
3519 | sv_dump(sv) | |
3520 | SV* sv; | |
3521 | { | |
3522 | } | |
8990e307 | 3523 | #endif |
a0d0e21e LW |
3524 | |
3525 | IO* | |
3526 | sv_2io(sv) | |
3527 | SV *sv; | |
3528 | { | |
3529 | IO* io; | |
3530 | GV* gv; | |
3531 | ||
3532 | switch (SvTYPE(sv)) { | |
3533 | case SVt_PVIO: | |
3534 | io = (IO*)sv; | |
3535 | break; | |
3536 | case SVt_PVGV: | |
3537 | gv = (GV*)sv; | |
3538 | io = GvIO(gv); | |
3539 | if (!io) | |
3540 | croak("Bad filehandle: %s", GvNAME(gv)); | |
3541 | break; | |
3542 | default: | |
3543 | if (!SvOK(sv)) | |
3544 | croak(no_usym, "filehandle"); | |
3545 | if (SvROK(sv)) | |
3546 | return sv_2io(SvRV(sv)); | |
3547 | gv = gv_fetchpv(SvPV(sv,na), FALSE, SVt_PVIO); | |
3548 | if (gv) | |
3549 | io = GvIO(gv); | |
3550 | else | |
3551 | io = 0; | |
3552 | if (!io) | |
3553 | croak("Bad filehandle: %s", SvPV(sv,na)); | |
3554 | break; | |
3555 | } | |
3556 | return io; | |
3557 | } | |
3558 |