Test case for #10433/#10424.
[p5sagit/p5-mst-13.2.git] / doop.c
CommitLineData
a0d0e21e 1/* doop.c
79072805 2 *
bc89e66f 3 * Copyright (c) 1991-2001, 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"
864dbfa3 15#define PERL_IN_DOOP_C
79072805 16#include "perl.h"
17
64ca3a65 18#ifndef PERL_MICRO
79072805 19#if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX)
20#include <signal.h>
21#endif
64ca3a65 22#endif
79072805 23
942e002e 24STATIC I32
b250498f 25S_do_trans_simple(pTHX_ SV *sv)
79072805 26{
4757a243 27 U8 *s;
b250498f 28 U8 *d;
4757a243 29 U8 *send;
b250498f 30 U8 *dstart;
4757a243 31 I32 matches = 0;
9b877dbb 32 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
463ee0b2 33 STRLEN len;
4757a243 34 short *tbl;
35 I32 ch;
79072805 36
4757a243 37 tbl = (short*)cPVOP->op_pv;
38 if (!tbl)
7d85a32c 39 Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
a0ed51b3 40
4757a243 41 s = (U8*)SvPV(sv, len);
42 send = s + len;
43
b250498f 44 /* First, take care of non-UTF8 input strings, because they're easy */
1aa99e6b 45 if (!SvUTF8(sv)) {
01ec43d0 46 while (s < send) {
036b4402 47 if ((ch = tbl[*s]) >= 0) {
01ec43d0 48 matches++;
49 *s++ = ch;
50 }
51 else
52 s++;
53 }
54 SvSETMAGIC(sv);
b250498f 55 return matches;
56 }
4757a243 57
b250498f 58 /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
9b877dbb 59 if (grows)
60 New(0, d, len*2+1, U8);
61 else
62 d = s;
b250498f 63 dstart = d;
64 while (s < send) {
ba210ebe 65 STRLEN ulen;
9b877dbb 66 UV c;
b250498f 67
b250498f 68 /* Need to check this, otherwise 128..255 won't match */
9041c2e3 69 c = utf8n_to_uvchr(s, send - s, &ulen, 0);
9b877dbb 70 if (c < 0x100 && (ch = tbl[c]) >= 0) {
b250498f 71 matches++;
9041c2e3 72 d = uvchr_to_utf8(d, ch);
b250498f 73 s += ulen;
01ec43d0 74 }
75 else { /* No match -> copy */
9b877dbb 76 Copy(s, d, ulen, U8);
77 d += ulen;
78 s += ulen;
b250498f 79 }
80 }
9b877dbb 81 if (grows) {
82 sv_setpvn(sv, (char*)dstart, d - dstart);
83 Safefree(dstart);
84 }
85 else {
86 *d = '\0';
87 SvCUR_set(sv, d - dstart);
88 }
b250498f 89 SvUTF8_on(sv);
b250498f 90 SvSETMAGIC(sv);
4757a243 91 return matches;
92}
93
942e002e 94STATIC I32
036b4402 95S_do_trans_count(pTHX_ SV *sv)/* SPC - OK */
4757a243 96{
4757a243 97 U8 *s;
98 U8 *send;
99 I32 matches = 0;
100 STRLEN len;
101 short *tbl;
8973db79 102 I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
4757a243 103
104 tbl = (short*)cPVOP->op_pv;
105 if (!tbl)
7d85a32c 106 Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
4757a243 107
108 s = (U8*)SvPV(sv, len);
109 send = s + len;
110
1aa99e6b 111 if (!SvUTF8(sv))
112 while (s < send) {
113 if (tbl[*s++] >= 0)
036b4402 114 matches++;
1aa99e6b 115 }
116 else
117 while (s < send) {
118 UV c;
119 STRLEN ulen;
9041c2e3 120 c = utf8n_to_uvchr(s, send - s, &ulen, 0);
8973db79 121 if (c < 0x100) {
122 if (tbl[c] >= 0)
123 matches++;
124 } else if (complement)
1aa99e6b 125 matches++;
126 s += ulen;
127 }
4757a243 128
129 return matches;
130}
131
942e002e 132STATIC I32
b250498f 133S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */
4757a243 134{
4757a243 135 U8 *s;
136 U8 *send;
137 U8 *d;
5e44153e 138 U8 *dstart;
1aa99e6b 139 I32 isutf8;
4757a243 140 I32 matches = 0;
9b877dbb 141 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
8973db79 142 I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
143 I32 del = PL_op->op_private & OPpTRANS_DELETE;
b7953727 144 STRLEN len, rlen = 0;
4757a243 145 short *tbl;
146 I32 ch;
147
148 tbl = (short*)cPVOP->op_pv;
149 if (!tbl)
7d85a32c 150 Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
4757a243 151
152 s = (U8*)SvPV(sv, len);
1aa99e6b 153 isutf8 = SvUTF8(sv);
4757a243 154 send = s + len;
155
1aa99e6b 156 if (!isutf8) {
157 dstart = d = s;
158 if (PL_op->op_private & OPpTRANS_SQUASH) {
159 U8* p = send;
160 while (s < send) {
161 if ((ch = tbl[*s]) >= 0) {
036b4402 162 *d = ch;
163 matches++;
1aa99e6b 164 if (p != d - 1 || *p != *d)
165 p = d++;
166 }
167 else if (ch == -1) /* -1 is unmapped character */
168 *d++ = *s;
169 else if (ch == -2) /* -2 is delete character */
170 matches++;
171 s++;
172 }
a0ed51b3 173 }
1aa99e6b 174 else {
175 while (s < send) {
176 if ((ch = tbl[*s]) >= 0) {
177 matches++;
178 *d++ = ch;
179 }
180 else if (ch == -1) /* -1 is unmapped character */
181 *d++ = *s;
182 else if (ch == -2) /* -2 is delete character */
183 matches++;
184 s++;
185 }
186 }
76ef7183 187 *d = '\0';
1aa99e6b 188 SvCUR_set(sv, d - dstart);
4757a243 189 }
1aa99e6b 190 else { /* isutf8 */
9b877dbb 191 if (grows)
192 New(0, d, len*2+1, U8);
193 else
194 d = s;
1aa99e6b 195 dstart = d;
8973db79 196 if (complement && !del)
197 rlen = tbl[0x100];
1aa99e6b 198
4aecb5b5 199#ifdef MACOS_TRADITIONAL
200#define comp CoMP /* "comp" is a keyword in some compilers ... */
201#endif
202
1aa99e6b 203 if (PL_op->op_private & OPpTRANS_SQUASH) {
1aa99e6b 204 UV pch = 0xfeedface;
205 while (s < send) {
206 STRLEN len;
9041c2e3 207 UV comp = utf8_to_uvchr(s, &len);
1aa99e6b 208
8973db79 209 if (comp > 0xff) {
210 if (!complement) {
211 Copy(s, d, len, U8);
212 d += len;
213 }
214 else {
215 matches++;
216 if (!del) {
05d340b8 217 ch = (rlen == 0) ? comp :
218 (comp - 0x100 < rlen) ?
8973db79 219 tbl[comp+1] : tbl[0x100+rlen];
220 if (ch != pch) {
9041c2e3 221 d = uvchr_to_utf8(d, ch);
8973db79 222 pch = ch;
223 }
224 s += len;
225 continue;
226 }
227 }
9b877dbb 228 }
1aa99e6b 229 else if ((ch = tbl[comp]) >= 0) {
230 matches++;
231 if (ch != pch) {
9041c2e3 232 d = uvchr_to_utf8(d, ch);
1aa99e6b 233 pch = ch;
234 }
235 s += len;
236 continue;
237 }
9b877dbb 238 else if (ch == -1) { /* -1 is unmapped character */
239 Copy(s, d, len, U8);
240 d += len;
241 }
1aa99e6b 242 else if (ch == -2) /* -2 is delete character */
243 matches++;
244 s += len;
245 pch = 0xfeedface;
246 }
5d06d08e 247 }
1aa99e6b 248 else {
249 while (s < send) {
250 STRLEN len;
9041c2e3 251 UV comp = utf8_to_uvchr(s, &len);
8973db79 252 if (comp > 0xff) {
253 if (!complement) {
254 Copy(s, d, len, U8);
255 d += len;
256 }
257 else {
258 matches++;
259 if (!del) {
9041c2e3 260 if (comp - 0x100 < rlen)
261 d = uvchr_to_utf8(d, tbl[comp+1]);
8973db79 262 else
9041c2e3 263 d = uvchr_to_utf8(d, tbl[0x100+rlen]);
8973db79 264 }
265 }
9b877dbb 266 }
1aa99e6b 267 else if ((ch = tbl[comp]) >= 0) {
9041c2e3 268 d = uvchr_to_utf8(d, ch);
1aa99e6b 269 matches++;
270 }
271 else if (ch == -1) { /* -1 is unmapped character */
9b877dbb 272 Copy(s, d, len, U8);
273 d += len;
1aa99e6b 274 }
275 else if (ch == -2) /* -2 is delete character */
276 matches++;
277 s += len;
278 }
279 }
9b877dbb 280 if (grows) {
281 sv_setpvn(sv, (char*)dstart, d - dstart);
282 Safefree(dstart);
283 }
284 else {
285 *d = '\0';
286 SvCUR_set(sv, d - dstart);
287 }
1aa99e6b 288 SvUTF8_on(sv);
4757a243 289 }
5e44153e 290 SvSETMAGIC(sv);
4757a243 291 return matches;
292}
293
942e002e 294STATIC I32
036b4402 295S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */
4757a243 296{
4757a243 297 U8 *s;
298 U8 *send;
299 U8 *d;
036b4402 300 U8 *start;
1aa99e6b 301 U8 *dstart, *dend;
4757a243 302 I32 matches = 0;
9b877dbb 303 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
4757a243 304 STRLEN len;
305
306 SV* rv = (SV*)cSVOP->op_sv;
307 HV* hv = (HV*)SvRV(rv);
308 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
309 UV none = svp ? SvUV(*svp) : 0x7fffffff;
310 UV extra = none + 1;
b7953727 311 UV final = 0;
4757a243 312 UV uv;
1aa99e6b 313 I32 isutf8;
314 U8 hibit = 0;
4757a243 315
316 s = (U8*)SvPV(sv, len);
1aa99e6b 317 isutf8 = SvUTF8(sv);
318 if (!isutf8) {
319 U8 *t = s, *e = s + len;
c4d5f83a 320 while (t < e) {
321 U8 ch = *t++;
322 if ((hibit = !NATIVE_IS_INVARIANT(ch)))
1aa99e6b 323 break;
c4d5f83a 324 }
1aa99e6b 325 if (hibit)
326 s = bytes_to_utf8(s, &len);
327 }
4757a243 328 send = s + len;
036b4402 329 start = s;
4757a243 330
331 svp = hv_fetch(hv, "FINAL", 5, FALSE);
332 if (svp)
333 final = SvUV(*svp);
334
9b877dbb 335 if (grows) {
336 /* d needs to be bigger than s, in case e.g. upgrading is required */
337 New(0, d, len*3+UTF8_MAXLEN, U8);
338 dend = d + len * 3;
339 dstart = d;
340 }
341 else {
342 dstart = d = s;
343 dend = d + len;
344 }
1aa99e6b 345
4757a243 346 while (s < send) {
3568d838 347 if ((uv = swash_fetch(rv, s, TRUE)) < none) {
4757a243 348 s += UTF8SKIP(s);
349 matches++;
7d85a32c 350 d = uvuni_to_utf8(d, uv);
4757a243 351 }
352 else if (uv == none) {
1aa99e6b 353 int i = UTF8SKIP(s);
9b877dbb 354 Copy(s, d, i, U8);
355 d += i;
356 s += i;
4757a243 357 }
358 else if (uv == extra) {
1aa99e6b 359 int i = UTF8SKIP(s);
036b4402 360 s += i;
4757a243 361 matches++;
7d85a32c 362 d = uvuni_to_utf8(d, final);
4757a243 363 }
364 else
365 s += UTF8SKIP(s);
1aa99e6b 366
9b877dbb 367 if (d > dend) {
1aa99e6b 368 STRLEN clen = d - dstart;
369 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
9b877dbb 370 if (!grows)
7d85a32c 371 Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__);
1aa99e6b 372 Renew(dstart, nlen+UTF8_MAXLEN, U8);
373 d = dstart + clen;
374 dend = dstart + nlen;
375 }
4757a243 376 }
16ec844d 377 if (grows || hibit) {
9b877dbb 378 sv_setpvn(sv, (char*)dstart, d - dstart);
379 Safefree(dstart);
16ec844d 380 if (grows && hibit)
381 Safefree(start);
9b877dbb 382 }
383 else {
384 *d = '\0';
385 SvCUR_set(sv, d - dstart);
386 }
4757a243 387 SvSETMAGIC(sv);
1aa99e6b 388 SvUTF8_on(sv);
9041c2e3 389 /* Downgrading just 'cos it will is suspect - NI-S */
1aa99e6b 390 if (!isutf8 && !(PL_hints & HINT_UTF8))
391 sv_utf8_downgrade(sv, TRUE);
4757a243 392
393 return matches;
394}
395
942e002e 396STATIC I32
036b4402 397S_do_trans_count_utf8(pTHX_ SV *sv)/* SPC - OK */
4757a243 398{
4757a243 399 U8 *s;
b7953727 400 U8 *start = 0, *send;
4757a243 401 I32 matches = 0;
402 STRLEN len;
403
404 SV* rv = (SV*)cSVOP->op_sv;
405 HV* hv = (HV*)SvRV(rv);
406 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
407 UV none = svp ? SvUV(*svp) : 0x7fffffff;
45005bfb 408 UV extra = none + 1;
4757a243 409 UV uv;
1aa99e6b 410 U8 hibit = 0;
4757a243 411
412 s = (U8*)SvPV(sv, len);
1aa99e6b 413 if (!SvUTF8(sv)) {
414 U8 *t = s, *e = s + len;
c4d5f83a 415 while (t < e) {
416 U8 ch = *t++;
417 if ((hibit = !NATIVE_IS_INVARIANT(ch)))
1aa99e6b 418 break;
c4d5f83a 419 }
1aa99e6b 420 if (hibit)
421 start = s = bytes_to_utf8(s, &len);
422 }
4757a243 423 send = s + len;
424
425 while (s < send) {
3568d838 426 if ((uv = swash_fetch(rv, s, TRUE)) < none || uv == extra)
4757a243 427 matches++;
834a4ddd 428 s += UTF8SKIP(s);
4757a243 429 }
1aa99e6b 430 if (hibit)
431 Safefree(start);
4757a243 432
433 return matches;
434}
435
942e002e 436STATIC I32
036b4402 437S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */
4757a243 438{
4757a243 439 U8 *s;
1aa99e6b 440 U8 *start, *send;
4757a243 441 U8 *d;
442 I32 matches = 0;
443 I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
4757a243 444 I32 del = PL_op->op_private & OPpTRANS_DELETE;
9b877dbb 445 I32 grows = PL_op->op_private & OPpTRANS_GROWS;
4757a243 446 SV* rv = (SV*)cSVOP->op_sv;
447 HV* hv = (HV*)SvRV(rv);
448 SV** svp = hv_fetch(hv, "NONE", 4, FALSE);
449 UV none = svp ? SvUV(*svp) : 0x7fffffff;
450 UV extra = none + 1;
b7953727 451 UV final = 0;
45005bfb 452 bool havefinal = FALSE;
4757a243 453 UV uv;
454 STRLEN len;
1aa99e6b 455 U8 *dstart, *dend;
456 I32 isutf8;
457 U8 hibit = 0;
4757a243 458
459 s = (U8*)SvPV(sv, len);
1aa99e6b 460 isutf8 = SvUTF8(sv);
461 if (!isutf8) {
462 U8 *t = s, *e = s + len;
c4d5f83a 463 while (t < e) {
464 U8 ch = *t++;
465 if ((hibit = !NATIVE_IS_INVARIANT(ch)))
1aa99e6b 466 break;
c4d5f83a 467 }
1aa99e6b 468 if (hibit)
469 s = bytes_to_utf8(s, &len);
470 }
4757a243 471 send = s + len;
1aa99e6b 472 start = s;
4757a243 473
474 svp = hv_fetch(hv, "FINAL", 5, FALSE);
45005bfb 475 if (svp) {
4757a243 476 final = SvUV(*svp);
45005bfb 477 havefinal = TRUE;
478 }
4757a243 479
9b877dbb 480 if (grows) {
481 /* d needs to be bigger than s, in case e.g. upgrading is required */
482 New(0, d, len*3+UTF8_MAXLEN, U8);
483 dend = d + len * 3;
484 dstart = d;
485 }
486 else {
487 dstart = d = s;
488 dend = d + len;
489 }
4757a243 490
491 if (squash) {
492 UV puv = 0xfeedface;
493 while (s < send) {
3568d838 494 uv = swash_fetch(rv, s, TRUE);
9041c2e3 495
9b877dbb 496 if (d > dend) {
497 STRLEN clen = d - dstart;
498 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
499 if (!grows)
7d85a32c 500 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
1aa99e6b 501 Renew(dstart, nlen+UTF8_MAXLEN, U8);
502 d = dstart + clen;
503 dend = dstart + nlen;
4757a243 504 }
505 if (uv < none) {
506 matches++;
94472101 507 s += UTF8SKIP(s);
4757a243 508 if (uv != puv) {
7d85a32c 509 d = uvuni_to_utf8(d, uv);
4757a243 510 puv = uv;
511 }
4757a243 512 continue;
513 }
514 else if (uv == none) { /* "none" is unmapped character */
1aa99e6b 515 int i = UTF8SKIP(s);
9b877dbb 516 Copy(s, d, i, U8);
517 d += i;
518 s += i;
4757a243 519 puv = 0xfeedface;
520 continue;
a0ed51b3 521 }
4757a243 522 else if (uv == extra && !del) {
523 matches++;
45005bfb 524 if (havefinal) {
525 s += UTF8SKIP(s);
526 if (puv != final) {
7d85a32c 527 d = uvuni_to_utf8(d, final);
45005bfb 528 puv = final;
529 }
530 }
531 else {
532 STRLEN len;
7d85a32c 533 uv = utf8_to_uvuni(s, &len);
45005bfb 534 if (uv != puv) {
535 Copy(s, d, len, U8);
536 d += len;
537 puv = uv;
538 }
539 s += len;
4757a243 540 }
4757a243 541 continue;
542 }
01ec43d0 543 matches++; /* "none+1" is delete character */
544 s += UTF8SKIP(s);
a0ed51b3 545 }
79072805 546 }
547 else {
4757a243 548 while (s < send) {
3568d838 549 uv = swash_fetch(rv, s, TRUE);
9b877dbb 550 if (d > dend) {
551 STRLEN clen = d - dstart;
552 STRLEN nlen = dend - dstart + len + UTF8_MAXLEN;
553 if (!grows)
7d85a32c 554 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
1aa99e6b 555 Renew(dstart, nlen+UTF8_MAXLEN, U8);
556 d = dstart + clen;
557 dend = dstart + nlen;
a0ed51b3 558 }
4757a243 559 if (uv < none) {
560 matches++;
01ec43d0 561 s += UTF8SKIP(s);
7d85a32c 562 d = uvuni_to_utf8(d, uv);
4757a243 563 continue;
a0ed51b3 564 }
4757a243 565 else if (uv == none) { /* "none" is unmapped character */
1aa99e6b 566 int i = UTF8SKIP(s);
9b877dbb 567 Copy(s, d, i, U8);
568 d += i;
569 s += i;
4757a243 570 continue;
79072805 571 }
4757a243 572 else if (uv == extra && !del) {
573 matches++;
01ec43d0 574 s += UTF8SKIP(s);
7d85a32c 575 d = uvuni_to_utf8(d, final);
4757a243 576 continue;
577 }
01ec43d0 578 matches++; /* "none+1" is delete character */
579 s += UTF8SKIP(s);
79072805 580 }
4757a243 581 }
16ec844d 582 if (grows || hibit) {
9b877dbb 583 sv_setpvn(sv, (char*)dstart, d - dstart);
584 Safefree(dstart);
16ec844d 585 if (grows && hibit)
586 Safefree(start);
9b877dbb 587 }
588 else {
589 *d = '\0';
590 SvCUR_set(sv, d - dstart);
591 }
1aa99e6b 592 SvUTF8_on(sv);
1aa99e6b 593 if (!isutf8 && !(PL_hints & HINT_UTF8))
594 sv_utf8_downgrade(sv, TRUE);
4757a243 595 SvSETMAGIC(sv);
596
597 return matches;
598}
599
600I32
864dbfa3 601Perl_do_trans(pTHX_ SV *sv)
4757a243 602{
603 STRLEN len;
8e84507e 604 I32 hasutf = (PL_op->op_private &
036b4402 605 (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
4757a243 606
607 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL))
cea2e8a9 608 Perl_croak(aTHX_ PL_no_modify);
4757a243 609
610 (void)SvPV(sv, len);
611 if (!len)
612 return 0;
613 if (!SvPOKp(sv))
614 (void)SvPV_force(sv, len);
2de7b02f 615 if (!(PL_op->op_private & OPpTRANS_IDENTICAL))
616 (void)SvPOK_only_UTF8(sv);
4757a243 617
cea2e8a9 618 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
4757a243 619
036b4402 620 switch (PL_op->op_private & ~hasutf & 63) {
4757a243 621 case 0:
01ec43d0 622 if (hasutf)
623 return do_trans_simple_utf8(sv);
624 else
625 return do_trans_simple(sv);
4757a243 626
627 case OPpTRANS_IDENTICAL:
05d340b8 628 case OPpTRANS_IDENTICAL|OPpTRANS_COMPLEMENT:
01ec43d0 629 if (hasutf)
630 return do_trans_count_utf8(sv);
631 else
632 return do_trans_count(sv);
4757a243 633
634 default:
01ec43d0 635 if (hasutf)
036b4402 636 return do_trans_complex_utf8(sv);
4757a243 637 else
036b4402 638 return do_trans_complex(sv);
79072805 639 }
79072805 640}
641
642void
864dbfa3 643Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp)
79072805 644{
645 SV **oldmark = mark;
646 register I32 items = sp - mark;
79072805 647 register STRLEN len;
463ee0b2 648 STRLEN delimlen;
463ee0b2 649 STRLEN tmplen;
79072805 650
5ba99574 651 (void) SvPV(del, delimlen); /* stringify and get the delimlen */
652 /* SvCUR assumes it's SvPOK() and woe betide you if it's not. */
516a5887 653
79072805 654 mark++;
655 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
07f14f54 656 (void)SvUPGRADE(sv, SVt_PV);
79072805 657 if (SvLEN(sv) < len + items) { /* current length is way too short */
658 while (items-- > 0) {
1426bbf4 659 if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
463ee0b2 660 SvPV(*mark, tmplen);
661 len += tmplen;
79072805 662 }
663 mark++;
664 }
665 SvGROW(sv, len + 1); /* so try to pre-extend */
666
667 mark = oldmark;
db7c17d7 668 items = sp - mark;
79072805 669 ++mark;
670 }
671
8d6d96c1 672 sv_setpv(sv, "");
673 if (PL_tainting && SvMAGICAL(sv))
674 SvTAINTED_off(sv);
675
463ee0b2 676 if (items-- > 0) {
92d29cee 677 if (*mark)
678 sv_catsv(sv, *mark);
463ee0b2 679 mark++;
680 }
8d6d96c1 681
c512ce4f 682 if (delimlen) {
79072805 683 for (; items > 0; items--,mark++) {
c512ce4f 684 sv_catsv(sv,del);
79072805 685 sv_catsv(sv,*mark);
686 }
687 }
688 else {
689 for (; items > 0; items--,mark++)
690 sv_catsv(sv,*mark);
691 }
692 SvSETMAGIC(sv);
693}
694
695void
864dbfa3 696Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
79072805 697{
46fc3d4c 698 STRLEN patlen;
699 char *pat = SvPV(*sarg, patlen);
700 bool do_taint = FALSE;
701
702 sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint);
79072805 703 SvSETMAGIC(sv);
46fc3d4c 704 if (do_taint)
705 SvTAINTED_on(sv);
79072805 706}
707
33b45480 708/* currently converts input to bytes if possible, but doesn't sweat failure */
81e118e0 709UV
710Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size)
711{
712 STRLEN srclen, len;
713 unsigned char *s = (unsigned char *) SvPV(sv, srclen);
714 UV retnum = 0;
715
a50d7633 716 if (offset < 0)
81e118e0 717 return retnum;
8e84507e 718 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
a50d7633 719 Perl_croak(aTHX_ "Illegal number of bits in vec");
246fae53 720
dcad2880 721 if (SvUTF8(sv))
33b45480 722 (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
246fae53 723
81e118e0 724 offset *= size; /* turn into bit offset */
725 len = (offset + size + 7) / 8; /* required number of bytes */
726 if (len > srclen) {
727 if (size <= 8)
728 retnum = 0;
729 else {
730 offset >>= 3; /* turn into byte offset */
731 if (size == 16) {
732 if (offset >= srclen)
733 retnum = 0;
734 else
628e1a40 735 retnum = (UV) s[offset] << 8;
81e118e0 736 }
737 else if (size == 32) {
738 if (offset >= srclen)
739 retnum = 0;
740 else if (offset + 1 >= srclen)
741 retnum =
742 ((UV) s[offset ] << 24);
743 else if (offset + 2 >= srclen)
744 retnum =
745 ((UV) s[offset ] << 24) +
746 ((UV) s[offset + 1] << 16);
747 else
748 retnum =
749 ((UV) s[offset ] << 24) +
750 ((UV) s[offset + 1] << 16) +
751 ( s[offset + 2] << 8);
752 }
d7d93a81 753#ifdef UV_IS_QUAD
c5a0f51a 754 else if (size == 64) {
c5a0f51a 755 if (ckWARN(WARN_PORTABLE))
756 Perl_warner(aTHX_ WARN_PORTABLE,
757 "Bit vector size > 32 non-portable");
758 if (offset >= srclen)
759 retnum = 0;
760 else if (offset + 1 >= srclen)
761 retnum =
762 (UV) s[offset ] << 56;
763 else if (offset + 2 >= srclen)
764 retnum =
765 ((UV) s[offset ] << 56) +
766 ((UV) s[offset + 1] << 48);
767 else if (offset + 3 >= srclen)
768 retnum =
769 ((UV) s[offset ] << 56) +
770 ((UV) s[offset + 1] << 48) +
771 ((UV) s[offset + 2] << 40);
772 else if (offset + 4 >= srclen)
773 retnum =
774 ((UV) s[offset ] << 56) +
775 ((UV) s[offset + 1] << 48) +
776 ((UV) s[offset + 2] << 40) +
777 ((UV) s[offset + 3] << 32);
778 else if (offset + 5 >= srclen)
779 retnum =
780 ((UV) s[offset ] << 56) +
781 ((UV) s[offset + 1] << 48) +
782 ((UV) s[offset + 2] << 40) +
783 ((UV) s[offset + 3] << 32) +
784 ( s[offset + 4] << 24);
785 else if (offset + 6 >= srclen)
786 retnum =
787 ((UV) s[offset ] << 56) +
788 ((UV) s[offset + 1] << 48) +
789 ((UV) s[offset + 2] << 40) +
790 ((UV) s[offset + 3] << 32) +
791 ((UV) s[offset + 4] << 24) +
792 ((UV) s[offset + 5] << 16);
793 else
8e84507e 794 retnum =
c5a0f51a 795 ((UV) s[offset ] << 56) +
796 ((UV) s[offset + 1] << 48) +
797 ((UV) s[offset + 2] << 40) +
798 ((UV) s[offset + 3] << 32) +
799 ((UV) s[offset + 4] << 24) +
800 ((UV) s[offset + 5] << 16) +
628e1a40 801 ( s[offset + 6] << 8);
c5a0f51a 802 }
803#endif
81e118e0 804 }
805 }
806 else if (size < 8)
807 retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1);
808 else {
809 offset >>= 3; /* turn into byte offset */
810 if (size == 8)
811 retnum = s[offset];
812 else if (size == 16)
813 retnum =
628e1a40 814 ((UV) s[offset] << 8) +
81e118e0 815 s[offset + 1];
816 else if (size == 32)
817 retnum =
818 ((UV) s[offset ] << 24) +
819 ((UV) s[offset + 1] << 16) +
820 ( s[offset + 2] << 8) +
821 s[offset + 3];
d7d93a81 822#ifdef UV_IS_QUAD
c5a0f51a 823 else if (size == 64) {
c5a0f51a 824 if (ckWARN(WARN_PORTABLE))
825 Perl_warner(aTHX_ WARN_PORTABLE,
826 "Bit vector size > 32 non-portable");
827 retnum =
828 ((UV) s[offset ] << 56) +
829 ((UV) s[offset + 1] << 48) +
830 ((UV) s[offset + 2] << 40) +
831 ((UV) s[offset + 3] << 32) +
832 ((UV) s[offset + 4] << 24) +
833 ((UV) s[offset + 5] << 16) +
628e1a40 834 ( s[offset + 6] << 8) +
c5a0f51a 835 s[offset + 7];
836 }
837#endif
81e118e0 838 }
839
840 return retnum;
841}
842
33b45480 843/* currently converts input to bytes if possible but doesn't sweat failures,
844 * although it does ensure that the string it clobbers is not marked as
845 * utf8-valid any more
846 */
79072805 847void
864dbfa3 848Perl_do_vecset(pTHX_ SV *sv)
79072805 849{
850 SV *targ = LvTARG(sv);
851 register I32 offset;
852 register I32 size;
8990e307 853 register unsigned char *s;
81e118e0 854 register UV lval;
79072805 855 I32 mask;
a0d0e21e 856 STRLEN targlen;
857 STRLEN len;
79072805 858
8990e307 859 if (!targ)
860 return;
a0d0e21e 861 s = (unsigned char*)SvPV_force(targ, targlen);
246fae53 862 if (SvUTF8(targ)) {
33b45480 863 /* This is handled by the SvPOK_only below...
864 if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
865 SvUTF8_off(targ);
866 */
867 (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
246fae53 868 }
869
4ebbc975 870 (void)SvPOK_only(targ);
81e118e0 871 lval = SvUV(sv);
79072805 872 offset = LvTARGOFF(sv);
fe58ced6 873 if (offset < 0)
874 Perl_croak(aTHX_ "Assigning to negative offset in vec");
79072805 875 size = LvTARGLEN(sv);
8e84507e 876 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
a50d7633 877 Perl_croak(aTHX_ "Illegal number of bits in vec");
8e84507e 878
81e118e0 879 offset *= size; /* turn into bit offset */
880 len = (offset + size + 7) / 8; /* required number of bytes */
a0d0e21e 881 if (len > targlen) {
882 s = (unsigned char*)SvGROW(targ, len + 1);
12ae5dfc 883 (void)memzero((char *)(s + targlen), len - targlen + 1);
a0d0e21e 884 SvCUR_set(targ, len);
885 }
8e84507e 886
79072805 887 if (size < 8) {
888 mask = (1 << size) - 1;
889 size = offset & 7;
890 lval &= mask;
81e118e0 891 offset >>= 3; /* turn into byte offset */
79072805 892 s[offset] &= ~(mask << size);
893 s[offset] |= lval << size;
894 }
895 else {
81e118e0 896 offset >>= 3; /* turn into byte offset */
79072805 897 if (size == 8)
c5a0f51a 898 s[offset ] = lval & 0xff;
79072805 899 else if (size == 16) {
c5a0f51a 900 s[offset ] = (lval >> 8) & 0xff;
901 s[offset+1] = lval & 0xff;
79072805 902 }
903 else if (size == 32) {
c5a0f51a 904 s[offset ] = (lval >> 24) & 0xff;
905 s[offset+1] = (lval >> 16) & 0xff;
906 s[offset+2] = (lval >> 8) & 0xff;
907 s[offset+3] = lval & 0xff;
908 }
d7d93a81 909#ifdef UV_IS_QUAD
c5a0f51a 910 else if (size == 64) {
c5a0f51a 911 if (ckWARN(WARN_PORTABLE))
912 Perl_warner(aTHX_ WARN_PORTABLE,
913 "Bit vector size > 32 non-portable");
914 s[offset ] = (lval >> 56) & 0xff;
915 s[offset+1] = (lval >> 48) & 0xff;
916 s[offset+2] = (lval >> 40) & 0xff;
917 s[offset+3] = (lval >> 32) & 0xff;
918 s[offset+4] = (lval >> 24) & 0xff;
919 s[offset+5] = (lval >> 16) & 0xff;
920 s[offset+6] = (lval >> 8) & 0xff;
921 s[offset+7] = lval & 0xff;
79072805 922 }
dc1e3f56 923#endif
79072805 924 }
7bb043c3 925 SvSETMAGIC(targ);
79072805 926}
927
928void
864dbfa3 929Perl_do_chop(pTHX_ register SV *astr, register SV *sv)
79072805 930{
463ee0b2 931 STRLEN len;
a0d0e21e 932 char *s;
8e84507e 933
79072805 934 if (SvTYPE(sv) == SVt_PVAV) {
a0d0e21e 935 register I32 i;
936 I32 max;
937 AV* av = (AV*)sv;
938 max = AvFILL(av);
939 for (i = 0; i <= max; i++) {
940 sv = (SV*)av_fetch(av, i, FALSE);
3280af22 941 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
a0d0e21e 942 do_chop(astr, sv);
943 }
944 return;
79072805 945 }
aa854799 946 else if (SvTYPE(sv) == SVt_PVHV) {
a0d0e21e 947 HV* hv = (HV*)sv;
948 HE* entry;
949 (void)hv_iterinit(hv);
950 /*SUPPRESS 560*/
155aba94 951 while ((entry = hv_iternext(hv)))
a0d0e21e 952 do_chop(astr,hv_iterval(hv,entry));
953 return;
79072805 954 }
aa854799 955 else if (SvREADONLY(sv))
cea2e8a9 956 Perl_croak(aTHX_ PL_no_modify);
a0d0e21e 957 s = SvPV(sv, len);
748a9306 958 if (len && !SvPOK(sv))
a0d0e21e 959 s = SvPV_force(sv, len);
7e2040f0 960 if (DO_UTF8(sv)) {
a0ed51b3 961 if (s && len) {
962 char *send = s + len;
963 char *start = s;
964 s = send - 1;
a0dbb045 965 while (s > start && UTF8_IS_CONTINUATION(*s))
966 s--;
9041c2e3 967 if (utf8_to_uvchr((U8*)s, 0)) {
a0dbb045 968 sv_setpvn(astr, s, send - s);
969 *s = '\0';
970 SvCUR_set(sv, s - start);
971 SvNIOK_off(sv);
972 SvUTF8_on(astr);
973 }
a0ed51b3 974 }
975 else
976 sv_setpvn(astr, "", 0);
977 }
7e2040f0 978 else if (s && len) {
a0d0e21e 979 s += --len;
980 sv_setpvn(astr, s, 1);
981 *s = '\0';
982 SvCUR_set(sv, len);
2c19a612 983 SvUTF8_off(sv);
a0d0e21e 984 SvNIOK_off(sv);
79072805 985 }
986 else
a0d0e21e 987 sv_setpvn(astr, "", 0);
988 SvSETMAGIC(sv);
7e2040f0 989}
a0d0e21e 990
991I32
864dbfa3 992Perl_do_chomp(pTHX_ register SV *sv)
a0d0e21e 993{
c07a80fd 994 register I32 count;
a0d0e21e 995 STRLEN len;
9b33ce3b 996 STRLEN n_a;
a0d0e21e 997 char *s;
c07a80fd 998
3280af22 999 if (RsSNARF(PL_rs))
c07a80fd 1000 return 0;
4c5a6083 1001 if (RsRECORD(PL_rs))
1002 return 0;
c07a80fd 1003 count = 0;
a0d0e21e 1004 if (SvTYPE(sv) == SVt_PVAV) {
1005 register I32 i;
1006 I32 max;
1007 AV* av = (AV*)sv;
1008 max = AvFILL(av);
1009 for (i = 0; i <= max; i++) {
1010 sv = (SV*)av_fetch(av, i, FALSE);
3280af22 1011 if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef))
a0d0e21e 1012 count += do_chomp(sv);
1013 }
1014 return count;
1015 }
aa854799 1016 else if (SvTYPE(sv) == SVt_PVHV) {
a0d0e21e 1017 HV* hv = (HV*)sv;
1018 HE* entry;
1019 (void)hv_iterinit(hv);
1020 /*SUPPRESS 560*/
155aba94 1021 while ((entry = hv_iternext(hv)))
a0d0e21e 1022 count += do_chomp(hv_iterval(hv,entry));
1023 return count;
1024 }
aa854799 1025 else if (SvREADONLY(sv))
cea2e8a9 1026 Perl_croak(aTHX_ PL_no_modify);
a0d0e21e 1027 s = SvPV(sv, len);
a0d0e21e 1028 if (s && len) {
1029 s += --len;
3280af22 1030 if (RsPARA(PL_rs)) {
a0d0e21e 1031 if (*s != '\n')
1032 goto nope;
1033 ++count;
1034 while (len && s[-1] == '\n') {
1035 --len;
1036 --s;
1037 ++count;
1038 }
1039 }
a0d0e21e 1040 else {
c07a80fd 1041 STRLEN rslen;
3280af22 1042 char *rsptr = SvPV(PL_rs, rslen);
c07a80fd 1043 if (rslen == 1) {
1044 if (*s != *rsptr)
1045 goto nope;
1046 ++count;
1047 }
1048 else {
8c2cee6f 1049 if (len < rslen - 1)
c07a80fd 1050 goto nope;
1051 len -= rslen - 1;
1052 s -= rslen - 1;
36477c24 1053 if (memNE(s, rsptr, rslen))
c07a80fd 1054 goto nope;
1055 count += rslen;
1056 }
a0d0e21e 1057 }
9b33ce3b 1058 s = SvPV_force(sv, n_a);
a0d0e21e 1059 SvCUR_set(sv, len);
9b33ce3b 1060 *SvEND(sv) = '\0';
a0d0e21e 1061 SvNIOK_off(sv);
9b33ce3b 1062 SvSETMAGIC(sv);
a0d0e21e 1063 }
1064 nope:
a0d0e21e 1065 return count;
8e84507e 1066}
79072805 1067
1068void
864dbfa3 1069Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
79072805 1070{
1071#ifdef LIBERAL
1072 register long *dl;
1073 register long *ll;
1074 register long *rl;
1075#endif
1076 register char *dc;
463ee0b2 1077 STRLEN leftlen;
1078 STRLEN rightlen;
7a4c00b4 1079 register char *lc;
1080 register char *rc;
79072805 1081 register I32 len;
a0d0e21e 1082 I32 lensave;
7a4c00b4 1083 char *lsave;
1084 char *rsave;
0c57e439 1085 bool left_utf = DO_UTF8(left);
1086 bool right_utf = DO_UTF8(right);
b7953727 1087 I32 needlen = 0;
0c57e439 1088
1089 if (left_utf && !right_utf)
1090 sv_utf8_upgrade(right);
a1ca4561 1091 else if (!left_utf && right_utf)
0c57e439 1092 sv_utf8_upgrade(left);
79072805 1093
1fbd88dc 1094 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv)))
1095 sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */
7a4c00b4 1096 lsave = lc = SvPV(left, leftlen);
1097 rsave = rc = SvPV(right, rightlen);
93a17b20 1098 len = leftlen < rightlen ? leftlen : rightlen;
a0d0e21e 1099 lensave = len;
c9b3c8d0 1100 if ((left_utf || right_utf) && (sv == left || sv == right)) {
1101 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
1102 Newz(801, dc, needlen + 1, char);
1103 }
1104 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
2d8e6c8d 1105 STRLEN n_a;
1106 dc = SvPV_force(sv, n_a);
ff68c719 1107 if (SvCUR(sv) < len) {
1108 dc = SvGROW(sv, len + 1);
1109 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
1110 }
c9b3c8d0 1111 if (optype != OP_BIT_AND && (left_utf || right_utf))
1112 dc = SvGROW(sv, leftlen + rightlen + 1);
ff68c719 1113 }
1114 else {
c9b3c8d0 1115 needlen = ((optype == OP_BIT_AND)
1116 ? len : (leftlen > rightlen ? leftlen : rightlen));
ff68c719 1117 Newz(801, dc, needlen + 1, char);
1118 (void)sv_usepvn(sv, dc, needlen);
1119 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
79072805 1120 }
a0d0e21e 1121 SvCUR_set(sv, len);
1122 (void)SvPOK_only(sv);
0c57e439 1123 if (left_utf || right_utf) {
1124 UV duc, luc, ruc;
c9b3c8d0 1125 char *dcsave = dc;
0c57e439 1126 STRLEN lulen = leftlen;
1127 STRLEN rulen = rightlen;
ba210ebe 1128 STRLEN ulen;
0c57e439 1129
1130 switch (optype) {
1131 case OP_BIT_AND:
1132 while (lulen && rulen) {
9041c2e3 1133 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439 1134 lc += ulen;
1135 lulen -= ulen;
9041c2e3 1136 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439 1137 rc += ulen;
1138 rulen -= ulen;
1139 duc = luc & ruc;
9041c2e3 1140 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
0c57e439 1141 }
c9b3c8d0 1142 if (sv == left || sv == right)
1143 (void)sv_usepvn(sv, dcsave, needlen);
1144 SvCUR_set(sv, dc - dcsave);
0c57e439 1145 break;
1146 case OP_BIT_XOR:
1147 while (lulen && rulen) {
9041c2e3 1148 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439 1149 lc += ulen;
1150 lulen -= ulen;
9041c2e3 1151 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439 1152 rc += ulen;
1153 rulen -= ulen;
1154 duc = luc ^ ruc;
9041c2e3 1155 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
0c57e439 1156 }
1157 goto mop_up_utf;
1158 case OP_BIT_OR:
1159 while (lulen && rulen) {
9041c2e3 1160 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439 1161 lc += ulen;
1162 lulen -= ulen;
9041c2e3 1163 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439 1164 rc += ulen;
1165 rulen -= ulen;
1166 duc = luc | ruc;
9041c2e3 1167 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
0c57e439 1168 }
1169 mop_up_utf:
c9b3c8d0 1170 if (sv == left || sv == right)
1171 (void)sv_usepvn(sv, dcsave, needlen);
1172 SvCUR_set(sv, dc - dcsave);
0c57e439 1173 if (rulen)
1174 sv_catpvn(sv, rc, rulen);
1175 else if (lulen)
1176 sv_catpvn(sv, lc, lulen);
1177 else
1178 *SvEND(sv) = '\0';
1179 break;
1180 }
1181 SvUTF8_on(sv);
1182 goto finish;
1183 }
1184 else
79072805 1185#ifdef LIBERAL
1186 if (len >= sizeof(long)*4 &&
1187 !((long)dc % sizeof(long)) &&
1188 !((long)lc % sizeof(long)) &&
1189 !((long)rc % sizeof(long))) /* It's almost always aligned... */
1190 {
1191 I32 remainder = len % (sizeof(long)*4);
1192 len /= (sizeof(long)*4);
1193
1194 dl = (long*)dc;
1195 ll = (long*)lc;
1196 rl = (long*)rc;
1197
1198 switch (optype) {
1199 case OP_BIT_AND:
1200 while (len--) {
1201 *dl++ = *ll++ & *rl++;
1202 *dl++ = *ll++ & *rl++;
1203 *dl++ = *ll++ & *rl++;
1204 *dl++ = *ll++ & *rl++;
1205 }
1206 break;
a0d0e21e 1207 case OP_BIT_XOR:
79072805 1208 while (len--) {
1209 *dl++ = *ll++ ^ *rl++;
1210 *dl++ = *ll++ ^ *rl++;
1211 *dl++ = *ll++ ^ *rl++;
1212 *dl++ = *ll++ ^ *rl++;
1213 }
1214 break;
1215 case OP_BIT_OR:
1216 while (len--) {
1217 *dl++ = *ll++ | *rl++;
1218 *dl++ = *ll++ | *rl++;
1219 *dl++ = *ll++ | *rl++;
1220 *dl++ = *ll++ | *rl++;
1221 }
1222 }
1223
1224 dc = (char*)dl;
1225 lc = (char*)ll;
1226 rc = (char*)rl;
1227
1228 len = remainder;
1229 }
1230#endif
a0d0e21e 1231 {
a0d0e21e 1232 switch (optype) {
1233 case OP_BIT_AND:
1234 while (len--)
1235 *dc++ = *lc++ & *rc++;
1236 break;
1237 case OP_BIT_XOR:
1238 while (len--)
1239 *dc++ = *lc++ ^ *rc++;
1240 goto mop_up;
1241 case OP_BIT_OR:
1242 while (len--)
1243 *dc++ = *lc++ | *rc++;
1244 mop_up:
1245 len = lensave;
1246 if (rightlen > len)
1247 sv_catpvn(sv, rsave + len, rightlen - len);
1248 else if (leftlen > len)
1249 sv_catpvn(sv, lsave + len, leftlen - len);
4633a7c4 1250 else
1251 *SvEND(sv) = '\0';
a0d0e21e 1252 break;
1253 }
79072805 1254 }
0c57e439 1255finish:
fb73857a 1256 SvTAINT(sv);
79072805 1257}
463ee0b2 1258
1259OP *
cea2e8a9 1260Perl_do_kv(pTHX)
463ee0b2 1261{
39644a26 1262 dSP;
463ee0b2 1263 HV *hv = (HV*)POPs;
800e9ae0 1264 HV *keys;
463ee0b2 1265 register HE *entry;
463ee0b2 1266 SV *tmpstr;
54310121 1267 I32 gimme = GIMME_V;
533c011a 1268 I32 dokeys = (PL_op->op_type == OP_KEYS);
1269 I32 dovalues = (PL_op->op_type == OP_VALUES);
c750a3ec 1270 I32 realhv = (SvTYPE(hv) == SVt_PVHV);
8e84507e 1271
1272 if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV)
a0d0e21e 1273 dokeys = dovalues = TRUE;
463ee0b2 1274
85581909 1275 if (!hv) {
78f9721b 1276 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
85581909 1277 dTARGET; /* make sure to clear its target here */
1278 if (SvTYPE(TARG) == SVt_PVLV)
1279 LvTARG(TARG) = Nullsv;
1280 PUSHs(TARG);
1281 }
463ee0b2 1282 RETURN;
85581909 1283 }
748a9306 1284
800e9ae0 1285 keys = realhv ? hv : avhv_keys((AV*)hv);
1286 (void)hv_iterinit(keys); /* always reset iterator regardless */
748a9306 1287
54310121 1288 if (gimme == G_VOID)
aa689395 1289 RETURN;
1290
54310121 1291 if (gimme == G_SCALAR) {
6ee623d5 1292 IV i;
463ee0b2 1293 dTARGET;
1294
78f9721b 1295 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
85581909 1296 if (SvTYPE(TARG) < SVt_PVLV) {
1297 sv_upgrade(TARG, SVt_PVLV);
14befaf4 1298 sv_magic(TARG, Nullsv, PERL_MAGIC_nkeys, Nullch, 0);
85581909 1299 }
1300 LvTYPE(TARG) = 'k';
800e9ae0 1301 if (LvTARG(TARG) != (SV*)keys) {
6ff81951 1302 if (LvTARG(TARG))
1303 SvREFCNT_dec(LvTARG(TARG));
800e9ae0 1304 LvTARG(TARG) = SvREFCNT_inc(keys);
6ff81951 1305 }
85581909 1306 PUSHs(TARG);
1307 RETURN;
1308 }
1309
14befaf4 1310 if (! SvTIED_mg((SV*)keys, PERL_MAGIC_tied))
800e9ae0 1311 i = HvKEYS(keys);
463ee0b2 1312 else {
1313 i = 0;
463ee0b2 1314 /*SUPPRESS 560*/
800e9ae0 1315 while (hv_iternext(keys)) i++;
463ee0b2 1316 }
1317 PUSHi( i );
1318 RETURN;
1319 }
1320
8ed4b672 1321 EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues));
463ee0b2 1322
463ee0b2 1323 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
155aba94 1324 while ((entry = hv_iternext(keys))) {
463ee0b2 1325 SPAGAIN;
6bfc225d 1326 if (dokeys)
8c2cee6f 1327 XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */
463ee0b2 1328 if (dovalues) {
463ee0b2 1329 PUTBACK;
b6429b1b 1330 tmpstr = realhv ?
1331 hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry);
cea2e8a9 1332 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
46fc3d4c 1333 (unsigned long)HeHASH(entry),
800e9ae0 1334 HvMAX(keys)+1,
1335 (unsigned long)(HeHASH(entry) & HvMAX(keys))));
463ee0b2 1336 SPAGAIN;
46fc3d4c 1337 XPUSHs(tmpstr);
463ee0b2 1338 }
1339 PUTBACK;
1340 }
1341 return NORMAL;
1342}
4e35701f 1343