Commit | Line | Data |
a0d0e21e |
1 | /* doop.c |
79072805 |
2 | * |
a0d0e21e |
3 | * Copyright (c) 1991-1994, Larry Wall |
79072805 |
4 | * |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
7 | * |
a0d0e21e |
8 | */ |
9 | |
10 | /* |
11 | * "'So that was the job I felt I had to do when I started,' thought Sam." |
79072805 |
12 | */ |
13 | |
14 | #include "EXTERN.h" |
15 | #include "perl.h" |
16 | |
17 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
18 | #include <signal.h> |
19 | #endif |
20 | |
79072805 |
21 | I32 |
22 | do_trans(sv,arg) |
23 | SV *sv; |
24 | OP *arg; |
25 | { |
26 | register short *tbl; |
1476d272 |
27 | register U8 *s; |
28 | register U8 *send; |
29 | register U8 *d; |
79072805 |
30 | register I32 ch; |
1476d272 |
31 | register I32 matches = 0; |
79072805 |
32 | register I32 squash = op->op_private & OPpTRANS_SQUASH; |
463ee0b2 |
33 | STRLEN len; |
79072805 |
34 | |
a0d0e21e |
35 | if (SvREADONLY(sv)) |
36 | croak(no_modify); |
1476d272 |
37 | tbl = (short*)cPVOP->op_pv; |
38 | s = (U8*)SvPV(sv, len); |
a0d0e21e |
39 | if (!len) |
40 | return 0; |
41 | if (!SvPOKp(sv)) |
1476d272 |
42 | s = (U8*)SvPV_force(sv, len); |
a0d0e21e |
43 | (void)SvPOK_only(sv); |
463ee0b2 |
44 | send = s + len; |
79072805 |
45 | if (!tbl || !s) |
463ee0b2 |
46 | croak("panic: do_trans"); |
79072805 |
47 | DEBUG_t( deb("2.TBL\n")); |
48 | if (!op->op_private) { |
49 | while (s < send) { |
1476d272 |
50 | if ((ch = tbl[*s]) >= 0) { |
79072805 |
51 | matches++; |
52 | *s = ch; |
53 | } |
54 | s++; |
55 | } |
56 | } |
57 | else { |
58 | d = s; |
59 | while (s < send) { |
1476d272 |
60 | if ((ch = tbl[*s]) >= 0) { |
79072805 |
61 | *d = ch; |
62 | if (matches++ && squash) { |
63 | if (d[-1] == *d) |
64 | matches--; |
65 | else |
66 | d++; |
67 | } |
68 | else |
69 | d++; |
70 | } |
71 | else if (ch == -1) /* -1 is unmapped character */ |
72 | *d++ = *s; /* -2 is delete character */ |
73 | s++; |
74 | } |
75 | matches += send - d; /* account for disappeared chars */ |
76 | *d = '\0'; |
1476d272 |
77 | SvCUR_set(sv, d - (U8*)SvPVX(sv)); |
79072805 |
78 | } |
79 | SvSETMAGIC(sv); |
80 | return matches; |
81 | } |
82 | |
83 | void |
84 | do_join(sv,del,mark,sp) |
85 | register SV *sv; |
86 | SV *del; |
87 | register SV **mark; |
88 | register SV **sp; |
89 | { |
90 | SV **oldmark = mark; |
91 | register I32 items = sp - mark; |
79072805 |
92 | register STRLEN len; |
463ee0b2 |
93 | STRLEN delimlen; |
94 | register char *delim = SvPV(del, delimlen); |
95 | STRLEN tmplen; |
79072805 |
96 | |
97 | mark++; |
98 | len = (items > 0 ? (delimlen * (items - 1) ) : 0); |
99 | if (SvTYPE(sv) < SVt_PV) |
100 | sv_upgrade(sv, SVt_PV); |
101 | if (SvLEN(sv) < len + items) { /* current length is way too short */ |
102 | while (items-- > 0) { |
103 | if (*mark) { |
463ee0b2 |
104 | SvPV(*mark, tmplen); |
105 | len += tmplen; |
79072805 |
106 | } |
107 | mark++; |
108 | } |
109 | SvGROW(sv, len + 1); /* so try to pre-extend */ |
110 | |
111 | mark = oldmark; |
112 | items = sp - mark;; |
113 | ++mark; |
114 | } |
115 | |
463ee0b2 |
116 | if (items-- > 0) { |
8990e307 |
117 | char *s; |
118 | |
119 | if (*mark) { |
120 | s = SvPV(*mark, tmplen); |
121 | sv_setpvn(sv, s, tmplen); |
122 | } |
123 | else |
124 | sv_setpv(sv, ""); |
463ee0b2 |
125 | mark++; |
126 | } |
79072805 |
127 | else |
128 | sv_setpv(sv,""); |
129 | len = delimlen; |
130 | if (len) { |
131 | for (; items > 0; items--,mark++) { |
132 | sv_catpvn(sv,delim,len); |
133 | sv_catsv(sv,*mark); |
134 | } |
135 | } |
136 | else { |
137 | for (; items > 0; items--,mark++) |
138 | sv_catsv(sv,*mark); |
139 | } |
140 | SvSETMAGIC(sv); |
141 | } |
142 | |
143 | void |
144 | do_sprintf(sv,len,sarg) |
145 | register SV *sv; |
146 | register I32 len; |
147 | register SV **sarg; |
148 | { |
149 | register char *s; |
150 | register char *t; |
151 | register char *f; |
152 | bool dolong; |
ecfc5424 |
153 | #ifdef HAS_QUAD |
79072805 |
154 | bool doquad; |
ecfc5424 |
155 | #endif /* HAS_QUAD */ |
79072805 |
156 | char ch; |
157 | register char *send; |
158 | register SV *arg; |
159 | char *xs; |
160 | I32 xlen; |
161 | I32 pre; |
162 | I32 post; |
163 | double value; |
463ee0b2 |
164 | STRLEN arglen; |
79072805 |
165 | |
166 | sv_setpv(sv,""); |
167 | len--; /* don't count pattern string */ |
a0d0e21e |
168 | t = s = SvPV(*sarg, arglen); /* XXX Don't know t is writeable */ |
463ee0b2 |
169 | send = s + arglen; |
79072805 |
170 | sarg++; |
171 | for ( ; ; len--) { |
172 | |
173 | /*SUPPRESS 560*/ |
174 | if (len <= 0 || !(arg = *sarg++)) |
175 | arg = &sv_no; |
176 | |
177 | /*SUPPRESS 530*/ |
178 | for ( ; t < send && *t != '%'; t++) ; |
179 | if (t >= send) |
180 | break; /* end of run_format string, ignore extra args */ |
181 | f = t; |
182 | *buf = '\0'; |
183 | xs = buf; |
ecfc5424 |
184 | #ifdef HAS_QUAD |
79072805 |
185 | doquad = |
ecfc5424 |
186 | #endif /* HAS_QUAD */ |
79072805 |
187 | dolong = FALSE; |
188 | pre = post = 0; |
189 | for (t++; t < send; t++) { |
190 | switch (*t) { |
191 | default: |
192 | ch = *(++t); |
193 | *t = '\0'; |
194 | (void)sprintf(xs,f); |
195 | len++, sarg--; |
196 | xlen = strlen(xs); |
197 | break; |
748a9306 |
198 | case 'n': case '*': |
199 | croak("Use of %c in printf format not supported", *t); |
200 | |
79072805 |
201 | case '0': case '1': case '2': case '3': case '4': |
202 | case '5': case '6': case '7': case '8': case '9': |
203 | case '.': case '#': case '-': case '+': case ' ': |
204 | continue; |
463ee0b2 |
205 | case 'l': |
ecfc5424 |
206 | #ifdef HAS_QUAD |
79072805 |
207 | if (dolong) { |
208 | dolong = FALSE; |
209 | doquad = TRUE; |
210 | } else |
211 | #endif |
212 | dolong = TRUE; |
213 | continue; |
214 | case 'c': |
215 | ch = *(++t); |
216 | *t = '\0'; |
463ee0b2 |
217 | xlen = SvIV(arg); |
79072805 |
218 | if (strEQ(f,"%c")) { /* some printfs fail on null chars */ |
219 | *xs = xlen; |
220 | xs[1] = '\0'; |
221 | xlen = 1; |
222 | } |
223 | else { |
224 | (void)sprintf(xs,f,xlen); |
225 | xlen = strlen(xs); |
226 | } |
227 | break; |
228 | case 'D': |
229 | dolong = TRUE; |
230 | /* FALL THROUGH */ |
231 | case 'd': |
232 | ch = *(++t); |
233 | *t = '\0'; |
ecfc5424 |
234 | #ifdef HAS_QUAD |
79072805 |
235 | if (doquad) |
ecfc5424 |
236 | (void)sprintf(buf,s,(Quad_t)SvNV(arg)); |
79072805 |
237 | else |
238 | #endif |
239 | if (dolong) |
463ee0b2 |
240 | (void)sprintf(xs,f,(long)SvNV(arg)); |
79072805 |
241 | else |
463ee0b2 |
242 | (void)sprintf(xs,f,SvIV(arg)); |
79072805 |
243 | xlen = strlen(xs); |
244 | break; |
245 | case 'X': case 'O': |
246 | dolong = TRUE; |
247 | /* FALL THROUGH */ |
248 | case 'x': case 'o': case 'u': |
249 | ch = *(++t); |
250 | *t = '\0'; |
463ee0b2 |
251 | value = SvNV(arg); |
ecfc5424 |
252 | #ifdef HAS_QUAD |
79072805 |
253 | if (doquad) |
ecfc5424 |
254 | (void)sprintf(buf,s,(unsigned Quad_t)value); |
79072805 |
255 | else |
256 | #endif |
257 | if (dolong) |
258 | (void)sprintf(xs,f,U_L(value)); |
259 | else |
260 | (void)sprintf(xs,f,U_I(value)); |
261 | xlen = strlen(xs); |
262 | break; |
263 | case 'E': case 'e': case 'f': case 'G': case 'g': |
264 | ch = *(++t); |
265 | *t = '\0'; |
463ee0b2 |
266 | (void)sprintf(xs,f,SvNV(arg)); |
79072805 |
267 | xlen = strlen(xs); |
bbce6d69 |
268 | #ifdef LC_NUMERIC |
ff68c719 |
269 | /* |
270 | * User-defined locales may include arbitrary characters. |
271 | * And, unfortunately, some system may alloc the "C" locale |
272 | * to be overridden by a malicious user. |
273 | */ |
274 | if (op->op_type == OP_SPRINTF) |
bbce6d69 |
275 | SvTAINTED_on(sv); |
ff68c719 |
276 | #endif /* LC_NUMERIC */ |
79072805 |
277 | break; |
278 | case 's': |
279 | ch = *(++t); |
280 | *t = '\0'; |
463ee0b2 |
281 | xs = SvPV(arg, arglen); |
282 | xlen = (I32)arglen; |
79072805 |
283 | if (strEQ(f,"%s")) { /* some printfs fail on >128 chars */ |
284 | break; /* so handle simple cases */ |
285 | } |
286 | else if (f[1] == '-') { |
93a17b20 |
287 | char *mp = strchr(f, '.'); |
79072805 |
288 | I32 min = atoi(f+2); |
289 | |
290 | if (mp) { |
291 | I32 max = atoi(mp+1); |
292 | |
293 | if (xlen > max) |
294 | xlen = max; |
295 | } |
296 | if (xlen < min) |
297 | post = min - xlen; |
298 | break; |
299 | } |
300 | else if (isDIGIT(f[1])) { |
93a17b20 |
301 | char *mp = strchr(f, '.'); |
79072805 |
302 | I32 min = atoi(f+1); |
303 | |
304 | if (mp) { |
305 | I32 max = atoi(mp+1); |
306 | |
307 | if (xlen > max) |
308 | xlen = max; |
309 | } |
310 | if (xlen < min) |
311 | pre = min - xlen; |
312 | break; |
313 | } |
314 | strcpy(tokenbuf+64,f); /* sprintf($s,...$s...) */ |
315 | *t = ch; |
316 | (void)sprintf(buf,tokenbuf+64,xs); |
317 | xs = buf; |
318 | xlen = strlen(xs); |
319 | break; |
320 | } |
321 | /* end of switch, copy results */ |
322 | *t = ch; |
4633a7c4 |
323 | if (xs == buf && xlen >= sizeof(buf)) { /* Ooops! */ |
760ac839 |
324 | PerlIO_puts(PerlIO_stderr(),"panic: sprintf overflow - memory corrupted!\n"); |
4633a7c4 |
325 | my_exit(1); |
326 | } |
79072805 |
327 | SvGROW(sv, SvCUR(sv) + (f - s) + xlen + 1 + pre + post); |
328 | sv_catpvn(sv, s, f - s); |
329 | if (pre) { |
463ee0b2 |
330 | repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, pre); |
79072805 |
331 | SvCUR(sv) += pre; |
332 | } |
333 | sv_catpvn(sv, xs, xlen); |
334 | if (post) { |
463ee0b2 |
335 | repeatcpy(SvPVX(sv) + SvCUR(sv), " ", 1, post); |
79072805 |
336 | SvCUR(sv) += post; |
337 | } |
338 | s = t; |
339 | break; /* break from for loop */ |
340 | } |
341 | } |
342 | sv_catpvn(sv, s, t - s); |
343 | SvSETMAGIC(sv); |
344 | } |
345 | |
346 | void |
347 | do_vecset(sv) |
348 | SV *sv; |
349 | { |
350 | SV *targ = LvTARG(sv); |
351 | register I32 offset; |
352 | register I32 size; |
8990e307 |
353 | register unsigned char *s; |
354 | register unsigned long lval; |
79072805 |
355 | I32 mask; |
a0d0e21e |
356 | STRLEN targlen; |
357 | STRLEN len; |
79072805 |
358 | |
8990e307 |
359 | if (!targ) |
360 | return; |
a0d0e21e |
361 | s = (unsigned char*)SvPV_force(targ, targlen); |
8990e307 |
362 | lval = U_L(SvNV(sv)); |
79072805 |
363 | offset = LvTARGOFF(sv); |
364 | size = LvTARGLEN(sv); |
a0d0e21e |
365 | |
366 | len = (offset + size + 7) / 8; |
367 | if (len > targlen) { |
368 | s = (unsigned char*)SvGROW(targ, len + 1); |
369 | (void)memzero(s + targlen, len - targlen + 1); |
370 | SvCUR_set(targ, len); |
371 | } |
372 | |
79072805 |
373 | if (size < 8) { |
374 | mask = (1 << size) - 1; |
375 | size = offset & 7; |
376 | lval &= mask; |
377 | offset >>= 3; |
378 | s[offset] &= ~(mask << size); |
379 | s[offset] |= lval << size; |
380 | } |
381 | else { |
a0d0e21e |
382 | offset >>= 3; |
79072805 |
383 | if (size == 8) |
384 | s[offset] = lval & 255; |
385 | else if (size == 16) { |
386 | s[offset] = (lval >> 8) & 255; |
387 | s[offset+1] = lval & 255; |
388 | } |
389 | else if (size == 32) { |
390 | s[offset] = (lval >> 24) & 255; |
391 | s[offset+1] = (lval >> 16) & 255; |
392 | s[offset+2] = (lval >> 8) & 255; |
393 | s[offset+3] = lval & 255; |
394 | } |
395 | } |
396 | } |
397 | |
398 | void |
399 | do_chop(astr,sv) |
400 | register SV *astr; |
401 | register SV *sv; |
402 | { |
463ee0b2 |
403 | STRLEN len; |
a0d0e21e |
404 | char *s; |
405 | |
79072805 |
406 | if (SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
407 | register I32 i; |
408 | I32 max; |
409 | AV* av = (AV*)sv; |
410 | max = AvFILL(av); |
411 | for (i = 0; i <= max; i++) { |
412 | sv = (SV*)av_fetch(av, i, FALSE); |
413 | if (sv && ((sv = *(SV**)sv), sv != &sv_undef)) |
414 | do_chop(astr, sv); |
415 | } |
416 | return; |
79072805 |
417 | } |
418 | if (SvTYPE(sv) == SVt_PVHV) { |
a0d0e21e |
419 | HV* hv = (HV*)sv; |
420 | HE* entry; |
421 | (void)hv_iterinit(hv); |
422 | /*SUPPRESS 560*/ |
423 | while (entry = hv_iternext(hv)) |
424 | do_chop(astr,hv_iterval(hv,entry)); |
425 | return; |
79072805 |
426 | } |
a0d0e21e |
427 | s = SvPV(sv, len); |
748a9306 |
428 | if (len && !SvPOK(sv)) |
a0d0e21e |
429 | s = SvPV_force(sv, len); |
430 | if (s && len) { |
431 | s += --len; |
432 | sv_setpvn(astr, s, 1); |
433 | *s = '\0'; |
434 | SvCUR_set(sv, len); |
435 | SvNIOK_off(sv); |
79072805 |
436 | } |
437 | else |
a0d0e21e |
438 | sv_setpvn(astr, "", 0); |
439 | SvSETMAGIC(sv); |
440 | } |
441 | |
442 | I32 |
443 | do_chomp(sv) |
444 | register SV *sv; |
445 | { |
c07a80fd |
446 | register I32 count; |
a0d0e21e |
447 | STRLEN len; |
448 | char *s; |
c07a80fd |
449 | |
450 | if (RsSNARF(rs)) |
451 | return 0; |
452 | count = 0; |
a0d0e21e |
453 | if (SvTYPE(sv) == SVt_PVAV) { |
454 | register I32 i; |
455 | I32 max; |
456 | AV* av = (AV*)sv; |
457 | max = AvFILL(av); |
458 | for (i = 0; i <= max; i++) { |
459 | sv = (SV*)av_fetch(av, i, FALSE); |
460 | if (sv && ((sv = *(SV**)sv), sv != &sv_undef)) |
461 | count += do_chomp(sv); |
462 | } |
463 | return count; |
464 | } |
465 | if (SvTYPE(sv) == SVt_PVHV) { |
466 | HV* hv = (HV*)sv; |
467 | HE* entry; |
468 | (void)hv_iterinit(hv); |
469 | /*SUPPRESS 560*/ |
470 | while (entry = hv_iternext(hv)) |
471 | count += do_chomp(hv_iterval(hv,entry)); |
472 | return count; |
473 | } |
474 | s = SvPV(sv, len); |
475 | if (len && !SvPOKp(sv)) |
476 | s = SvPV_force(sv, len); |
477 | if (s && len) { |
478 | s += --len; |
c07a80fd |
479 | if (RsPARA(rs)) { |
a0d0e21e |
480 | if (*s != '\n') |
481 | goto nope; |
482 | ++count; |
483 | while (len && s[-1] == '\n') { |
484 | --len; |
485 | --s; |
486 | ++count; |
487 | } |
488 | } |
a0d0e21e |
489 | else { |
c07a80fd |
490 | STRLEN rslen; |
491 | char *rsptr = SvPV(rs, rslen); |
492 | if (rslen == 1) { |
493 | if (*s != *rsptr) |
494 | goto nope; |
495 | ++count; |
496 | } |
497 | else { |
8c2cee6f |
498 | if (len < rslen - 1) |
c07a80fd |
499 | goto nope; |
500 | len -= rslen - 1; |
501 | s -= rslen - 1; |
36477c24 |
502 | if (memNE(s, rsptr, rslen)) |
c07a80fd |
503 | goto nope; |
504 | count += rslen; |
505 | } |
a0d0e21e |
506 | } |
a0d0e21e |
507 | *s = '\0'; |
508 | SvCUR_set(sv, len); |
509 | SvNIOK_off(sv); |
510 | } |
511 | nope: |
512 | SvSETMAGIC(sv); |
513 | return count; |
514 | } |
79072805 |
515 | |
516 | void |
517 | do_vop(optype,sv,left,right) |
518 | I32 optype; |
519 | SV *sv; |
520 | SV *left; |
521 | SV *right; |
522 | { |
523 | #ifdef LIBERAL |
524 | register long *dl; |
525 | register long *ll; |
526 | register long *rl; |
527 | #endif |
528 | register char *dc; |
463ee0b2 |
529 | STRLEN leftlen; |
530 | STRLEN rightlen; |
7a4c00b4 |
531 | register char *lc; |
532 | register char *rc; |
79072805 |
533 | register I32 len; |
a0d0e21e |
534 | I32 lensave; |
7a4c00b4 |
535 | char *lsave; |
536 | char *rsave; |
79072805 |
537 | |
1fbd88dc |
538 | if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) |
539 | sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */ |
7a4c00b4 |
540 | lsave = lc = SvPV(left, leftlen); |
541 | rsave = rc = SvPV(right, rightlen); |
93a17b20 |
542 | len = leftlen < rightlen ? leftlen : rightlen; |
a0d0e21e |
543 | lensave = len; |
7a4c00b4 |
544 | if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { |
ff68c719 |
545 | dc = SvPV_force(sv, na); |
546 | if (SvCUR(sv) < len) { |
547 | dc = SvGROW(sv, len + 1); |
548 | (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); |
549 | } |
550 | } |
551 | else { |
552 | I32 needlen = ((optype == OP_BIT_AND) |
553 | ? len : (leftlen > rightlen ? leftlen : rightlen)); |
554 | Newz(801, dc, needlen + 1, char); |
555 | (void)sv_usepvn(sv, dc, needlen); |
556 | dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ |
79072805 |
557 | } |
a0d0e21e |
558 | SvCUR_set(sv, len); |
559 | (void)SvPOK_only(sv); |
79072805 |
560 | #ifdef LIBERAL |
561 | if (len >= sizeof(long)*4 && |
562 | !((long)dc % sizeof(long)) && |
563 | !((long)lc % sizeof(long)) && |
564 | !((long)rc % sizeof(long))) /* It's almost always aligned... */ |
565 | { |
566 | I32 remainder = len % (sizeof(long)*4); |
567 | len /= (sizeof(long)*4); |
568 | |
569 | dl = (long*)dc; |
570 | ll = (long*)lc; |
571 | rl = (long*)rc; |
572 | |
573 | switch (optype) { |
574 | case OP_BIT_AND: |
575 | while (len--) { |
576 | *dl++ = *ll++ & *rl++; |
577 | *dl++ = *ll++ & *rl++; |
578 | *dl++ = *ll++ & *rl++; |
579 | *dl++ = *ll++ & *rl++; |
580 | } |
581 | break; |
a0d0e21e |
582 | case OP_BIT_XOR: |
79072805 |
583 | while (len--) { |
584 | *dl++ = *ll++ ^ *rl++; |
585 | *dl++ = *ll++ ^ *rl++; |
586 | *dl++ = *ll++ ^ *rl++; |
587 | *dl++ = *ll++ ^ *rl++; |
588 | } |
589 | break; |
590 | case OP_BIT_OR: |
591 | while (len--) { |
592 | *dl++ = *ll++ | *rl++; |
593 | *dl++ = *ll++ | *rl++; |
594 | *dl++ = *ll++ | *rl++; |
595 | *dl++ = *ll++ | *rl++; |
596 | } |
597 | } |
598 | |
599 | dc = (char*)dl; |
600 | lc = (char*)ll; |
601 | rc = (char*)rl; |
602 | |
603 | len = remainder; |
604 | } |
605 | #endif |
a0d0e21e |
606 | { |
a0d0e21e |
607 | switch (optype) { |
608 | case OP_BIT_AND: |
609 | while (len--) |
610 | *dc++ = *lc++ & *rc++; |
611 | break; |
612 | case OP_BIT_XOR: |
613 | while (len--) |
614 | *dc++ = *lc++ ^ *rc++; |
615 | goto mop_up; |
616 | case OP_BIT_OR: |
617 | while (len--) |
618 | *dc++ = *lc++ | *rc++; |
619 | mop_up: |
620 | len = lensave; |
621 | if (rightlen > len) |
622 | sv_catpvn(sv, rsave + len, rightlen - len); |
623 | else if (leftlen > len) |
624 | sv_catpvn(sv, lsave + len, leftlen - len); |
4633a7c4 |
625 | else |
626 | *SvEND(sv) = '\0'; |
a0d0e21e |
627 | break; |
628 | } |
79072805 |
629 | } |
630 | } |
463ee0b2 |
631 | |
632 | OP * |
633 | do_kv(ARGS) |
634 | dARGS |
635 | { |
636 | dSP; |
637 | HV *hv = (HV*)POPs; |
463ee0b2 |
638 | register HE *entry; |
463ee0b2 |
639 | SV *tmpstr; |
a0d0e21e |
640 | I32 dokeys = (op->op_type == OP_KEYS); |
641 | I32 dovalues = (op->op_type == OP_VALUES); |
642 | |
643 | if (op->op_type == OP_RV2HV || op->op_type == OP_PADHV) |
644 | dokeys = dovalues = TRUE; |
463ee0b2 |
645 | |
85581909 |
646 | if (!hv) { |
647 | if (op->op_flags & OPf_MOD) { /* lvalue */ |
648 | dTARGET; /* make sure to clear its target here */ |
649 | if (SvTYPE(TARG) == SVt_PVLV) |
650 | LvTARG(TARG) = Nullsv; |
651 | PUSHs(TARG); |
652 | } |
463ee0b2 |
653 | RETURN; |
85581909 |
654 | } |
748a9306 |
655 | |
656 | (void)hv_iterinit(hv); /* always reset iterator regardless */ |
657 | |
463ee0b2 |
658 | if (GIMME != G_ARRAY) { |
8c2cee6f |
659 | I32 i; |
463ee0b2 |
660 | dTARGET; |
661 | |
85581909 |
662 | if (op->op_flags & OPf_MOD) { /* lvalue */ |
663 | if (SvTYPE(TARG) < SVt_PVLV) { |
664 | sv_upgrade(TARG, SVt_PVLV); |
665 | sv_magic(TARG, Nullsv, 'k', Nullch, 0); |
666 | } |
667 | LvTYPE(TARG) = 'k'; |
668 | LvTARG(TARG) = (SV*)hv; |
669 | PUSHs(TARG); |
670 | RETURN; |
671 | } |
672 | |
8990e307 |
673 | if (!SvRMAGICAL(hv) || !mg_find((SV*)hv,'P')) |
463ee0b2 |
674 | i = HvKEYS(hv); |
675 | else { |
676 | i = 0; |
463ee0b2 |
677 | /*SUPPRESS 560*/ |
678 | while (entry = hv_iternext(hv)) { |
679 | i++; |
680 | } |
681 | } |
682 | PUSHi( i ); |
683 | RETURN; |
684 | } |
685 | |
686 | /* Guess how much room we need. hv_max may be a few too many. Oh well. */ |
687 | EXTEND(sp, HvMAX(hv) * (dokeys + dovalues)); |
688 | |
463ee0b2 |
689 | PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */ |
690 | while (entry = hv_iternext(hv)) { |
691 | SPAGAIN; |
8c2cee6f |
692 | if (dokeys) |
693 | XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */ |
463ee0b2 |
694 | if (dovalues) { |
695 | tmpstr = NEWSV(45,0); |
696 | PUTBACK; |
697 | sv_setsv(tmpstr,hv_iterval(hv,entry)); |
698 | SPAGAIN; |
699 | DEBUG_H( { |
8c2cee6f |
700 | sprintf(buf,"%d%%%d=%d\n", HeHASH(entry), |
701 | HvMAX(hv)+1, HeHASH(entry) & HvMAX(hv)); |
702 | sv_setpv(tmpstr,buf); |
463ee0b2 |
703 | } ) |
704 | XPUSHs(sv_2mortal(tmpstr)); |
705 | } |
706 | PUTBACK; |
707 | } |
708 | return NORMAL; |
709 | } |
710 | |