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