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