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a0d0e21e 1/* doop.c
79072805 2 *
1129b882 3 * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
f4b6e4b3 4 * 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others
79072805
LW
5 *
6 * You may distribute under the terms of either the GNU General Public
7 * License or the Artistic License, as specified in the README file.
8 *
a0d0e21e
LW
9 */
10
11/*
4ac71550
TC
12 * 'So that was the job I felt I had to do when I started,' thought Sam.
13 *
14 * [p.934 of _The Lord of the Rings_, VI/iii: "Mount Doom"]
79072805
LW
15 */
16
166f8a29 17/* This file contains some common functions needed to carry out certain
347f3823
FC
18 * ops. For example, both pp_sprintf() and pp_prtf() call the function
19 * do_printf() found in this file.
166f8a29
DM
20 */
21
79072805 22#include "EXTERN.h"
864dbfa3 23#define PERL_IN_DOOP_C
79072805
LW
24#include "perl.h"
25
64ca3a65 26#ifndef PERL_MICRO
79072805
LW
27#include <signal.h>
28#endif
29
942e002e 30STATIC I32
c395bd6c 31S_do_trans_simple(pTHX_ SV * const sv)
79072805 32{
4757a243 33 I32 matches = 0;
463ee0b2 34 STRLEN len;
9138d6ca 35 U8 *s = (U8*)SvPV_nomg(sv,len);
c395bd6c 36 U8 * const send = s+len;
c4420975 37 const short * const tbl = (short*)cPVOP->op_pv;
7918f24d
NC
38
39 PERL_ARGS_ASSERT_DO_TRANS_SIMPLE;
40
4757a243 41 if (!tbl)
7d85a32c 42 Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__);
a0ed51b3 43
1e54db1a 44 /* First, take care of non-UTF-8 input strings, because they're easy */
1aa99e6b 45 if (!SvUTF8(sv)) {
01ec43d0 46 while (s < send) {
f54cb97a
AL
47 const I32 ch = tbl[*s];
48 if (ch >= 0) {
01ec43d0 49 matches++;
c4420975 50 *s = (U8)ch;
01ec43d0 51 }
c4420975 52 s++;
01ec43d0
GS
53 }
54 SvSETMAGIC(sv);
9b877dbb
IH
55 }
56 else {
c395bd6c
AL
57 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
58 U8 *d;
59 U8 *dstart;
60
61 /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */
62 if (grows)
63 Newx(d, len*2+1, U8);
64 else
65 d = s;
66 dstart = d;
67 while (s < send) {
68 STRLEN ulen;
69 I32 ch;
70
71 /* Need to check this, otherwise 128..255 won't match */
72 const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
73 if (c < 0x100 && (ch = tbl[c]) >= 0) {
74 matches++;
75 d = uvchr_to_utf8(d, ch);
76 s += ulen;
77 }
78 else { /* No match -> copy */
79 Move(s, d, ulen, U8);
80 d += ulen;
81 s += ulen;
82 }
83 }
84 if (grows) {
85 sv_setpvn(sv, (char*)dstart, d - dstart);
86 Safefree(dstart);
87 }
88 else {
89 *d = '\0';
90 SvCUR_set(sv, d - dstart);
91 }
92 SvUTF8_on(sv);
93 SvSETMAGIC(sv);
9b877dbb 94 }
4757a243
LW
95 return matches;
96}
97
942e002e 98STATIC I32
c395bd6c 99S_do_trans_count(pTHX_ SV * const sv)
4757a243 100{
4757a243 101 STRLEN len;
9138d6ca 102 const U8 *s = (const U8*)SvPV_nomg_const(sv, len);
c395bd6c
AL
103 const U8 * const send = s + len;
104 I32 matches = 0;
f54cb97a 105 const short * const tbl = (short*)cPVOP->op_pv;
7918f24d
NC
106
107 PERL_ARGS_ASSERT_DO_TRANS_COUNT;
108
4757a243 109 if (!tbl)
7d85a32c 110 Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__);
4757a243 111
c395bd6c 112 if (!SvUTF8(sv)) {
1aa99e6b
IH
113 while (s < send) {
114 if (tbl[*s++] >= 0)
036b4402 115 matches++;
1aa99e6b 116 }
c395bd6c 117 }
fabdb6c0
AL
118 else {
119 const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
1aa99e6b 120 while (s < send) {
1aa99e6b 121 STRLEN ulen;
9f7f3913 122 const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT);
8973db79
JH
123 if (c < 0x100) {
124 if (tbl[c] >= 0)
125 matches++;
126 } else if (complement)
1aa99e6b
IH
127 matches++;
128 s += ulen;
129 }
fabdb6c0 130 }
4757a243
LW
131
132 return matches;
133}
134
942e002e 135STATIC I32
c395bd6c 136S_do_trans_complex(pTHX_ SV * const sv)
4757a243 137{
c395bd6c 138 STRLEN len;
9138d6ca 139 U8 *s = (U8*)SvPV_nomg(sv, len);
c395bd6c 140 U8 * const send = s+len;
4757a243 141 I32 matches = 0;
f54cb97a 142 const short * const tbl = (short*)cPVOP->op_pv;
7918f24d
NC
143
144 PERL_ARGS_ASSERT_DO_TRANS_COMPLEX;
145
4757a243 146 if (!tbl)
7d85a32c 147 Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__);
4757a243 148
c395bd6c
AL
149 if (!SvUTF8(sv)) {
150 U8 *d = s;
151 U8 * const dstart = d;
4757a243 152
1aa99e6b 153 if (PL_op->op_private & OPpTRANS_SQUASH) {
f54cb97a 154 const U8* p = send;
1aa99e6b 155 while (s < send) {
f54cb97a
AL
156 const I32 ch = tbl[*s];
157 if (ch >= 0) {
eb160463 158 *d = (U8)ch;
036b4402 159 matches++;
1aa99e6b
IH
160 if (p != d - 1 || *p != *d)
161 p = d++;
162 }
163 else if (ch == -1) /* -1 is unmapped character */
164 *d++ = *s;
165 else if (ch == -2) /* -2 is delete character */
166 matches++;
167 s++;
168 }
a0ed51b3 169 }
1aa99e6b
IH
170 else {
171 while (s < send) {
f54cb97a
AL
172 const I32 ch = tbl[*s];
173 if (ch >= 0) {
1aa99e6b 174 matches++;
eb160463 175 *d++ = (U8)ch;
1aa99e6b
IH
176 }
177 else if (ch == -1) /* -1 is unmapped character */
178 *d++ = *s;
179 else if (ch == -2) /* -2 is delete character */
180 matches++;
181 s++;
182 }
183 }
76ef7183 184 *d = '\0';
1aa99e6b 185 SvCUR_set(sv, d - dstart);
4757a243 186 }
c395bd6c 187 else { /* is utf8 */
fabdb6c0
AL
188 const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT;
189 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
190 const I32 del = PL_op->op_private & OPpTRANS_DELETE;
c395bd6c
AL
191 U8 *d;
192 U8 *dstart;
193 STRLEN rlen = 0;
fabdb6c0 194
9b877dbb 195 if (grows)
a02a5408 196 Newx(d, len*2+1, U8);
9b877dbb
IH
197 else
198 d = s;
1aa99e6b 199 dstart = d;
8973db79
JH
200 if (complement && !del)
201 rlen = tbl[0x100];
1aa99e6b
IH
202
203 if (PL_op->op_private & OPpTRANS_SQUASH) {
1aa99e6b
IH
204 UV pch = 0xfeedface;
205 while (s < send) {
206 STRLEN len;
9f7f3913
ST
207 const UV comp = utf8n_to_uvchr(s, send - s, &len,
208 UTF8_ALLOW_DEFAULT);
f54cb97a 209 I32 ch;
1aa99e6b 210
8973db79
JH
211 if (comp > 0xff) {
212 if (!complement) {
640af7f1 213 Move(s, d, len, U8);
8973db79
JH
214 d += len;
215 }
216 else {
217 matches++;
218 if (!del) {
bb7a0f54 219 ch = (rlen == 0) ? (I32)comp :
05d340b8 220 (comp - 0x100 < rlen) ?
8973db79 221 tbl[comp+1] : tbl[0x100+rlen];
eb160463 222 if ((UV)ch != pch) {
9041c2e3 223 d = uvchr_to_utf8(d, ch);
eb160463 224 pch = (UV)ch;
8973db79
JH
225 }
226 s += len;
227 continue;
228 }
229 }
9b877dbb 230 }
1aa99e6b
IH
231 else if ((ch = tbl[comp]) >= 0) {
232 matches++;
eb160463 233 if ((UV)ch != pch) {
9041c2e3 234 d = uvchr_to_utf8(d, ch);
eb160463 235 pch = (UV)ch;
1aa99e6b
IH
236 }
237 s += len;
238 continue;
239 }
9b877dbb 240 else if (ch == -1) { /* -1 is unmapped character */
640af7f1 241 Move(s, d, len, U8);
9b877dbb
IH
242 d += len;
243 }
1aa99e6b
IH
244 else if (ch == -2) /* -2 is delete character */
245 matches++;
246 s += len;
247 pch = 0xfeedface;
248 }
5d06d08e 249 }
1aa99e6b
IH
250 else {
251 while (s < send) {
252 STRLEN len;
9f7f3913
ST
253 const UV comp = utf8n_to_uvchr(s, send - s, &len,
254 UTF8_ALLOW_DEFAULT);
f54cb97a 255 I32 ch;
8973db79
JH
256 if (comp > 0xff) {
257 if (!complement) {
0376ff32 258 Move(s, d, len, U8);
8973db79
JH
259 d += len;
260 }
261 else {
262 matches++;
263 if (!del) {
9041c2e3
NIS
264 if (comp - 0x100 < rlen)
265 d = uvchr_to_utf8(d, tbl[comp+1]);
8973db79 266 else
9041c2e3 267 d = uvchr_to_utf8(d, tbl[0x100+rlen]);
8973db79
JH
268 }
269 }
9b877dbb 270 }
1aa99e6b 271 else if ((ch = tbl[comp]) >= 0) {
9041c2e3 272 d = uvchr_to_utf8(d, ch);
1aa99e6b
IH
273 matches++;
274 }
275 else if (ch == -1) { /* -1 is unmapped character */
640af7f1 276 Move(s, d, len, U8);
9b877dbb 277 d += len;
1aa99e6b
IH
278 }
279 else if (ch == -2) /* -2 is delete character */
280 matches++;
281 s += len;
282 }
283 }
9b877dbb
IH
284 if (grows) {
285 sv_setpvn(sv, (char*)dstart, d - dstart);
286 Safefree(dstart);
287 }
288 else {
289 *d = '\0';
290 SvCUR_set(sv, d - dstart);
291 }
1aa99e6b 292 SvUTF8_on(sv);
4757a243 293 }
5e44153e 294 SvSETMAGIC(sv);
4757a243
LW
295 return matches;
296}
297
942e002e 298STATIC I32
c395bd6c 299S_do_trans_simple_utf8(pTHX_ SV * const sv)
4757a243 300{
4757a243
LW
301 U8 *s;
302 U8 *send;
303 U8 *d;
036b4402 304 U8 *start;
1aa99e6b 305 U8 *dstart, *dend;
4757a243 306 I32 matches = 0;
f54cb97a 307 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
4757a243 308 STRLEN len;
043e41b8
DM
309 SV* const rv =
310#ifdef USE_ITHREADS
311 PAD_SVl(cPADOP->op_padix);
312#else
ad64d0ec 313 MUTABLE_SV(cSVOP->op_sv);
043e41b8 314#endif
85fbaab2 315 HV* const hv = MUTABLE_HV(SvRV(rv));
a4fc7abc 316 SV* const * svp = hv_fetchs(hv, "NONE", FALSE);
f54cb97a
AL
317 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
318 const UV extra = none + 1;
b7953727 319 UV final = 0;
1aa99e6b 320 U8 hibit = 0;
4757a243 321
7918f24d
NC
322 PERL_ARGS_ASSERT_DO_TRANS_SIMPLE_UTF8;
323
9138d6ca 324 s = (U8*)SvPV_nomg(sv, len);
c395bd6c 325 if (!SvUTF8(sv)) {
c4420975
AL
326 const U8 *t = s;
327 const U8 * const e = s + len;
c4d5f83a 328 while (t < e) {
f54cb97a 329 const U8 ch = *t++;
6f2d5cbc 330 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
fabdb6c0
AL
331 if (hibit) {
332 s = bytes_to_utf8(s, &len);
1aa99e6b 333 break;
fabdb6c0 334 }
c4d5f83a 335 }
1aa99e6b 336 }
4757a243 337 send = s + len;
036b4402 338 start = s;
4757a243 339
a4fc7abc 340 svp = hv_fetchs(hv, "FINAL", FALSE);
4757a243
LW
341 if (svp)
342 final = SvUV(*svp);
343
9b877dbb
IH
344 if (grows) {
345 /* d needs to be bigger than s, in case e.g. upgrading is required */
a02a5408 346 Newx(d, len * 3 + UTF8_MAXBYTES, U8);
9b877dbb
IH
347 dend = d + len * 3;
348 dstart = d;
349 }
350 else {
351 dstart = d = s;
352 dend = d + len;
353 }
1aa99e6b 354
4757a243 355 while (s < send) {
0bcc34c2
AL
356 const UV uv = swash_fetch(rv, s, TRUE);
357 if (uv < none) {
4757a243
LW
358 s += UTF8SKIP(s);
359 matches++;
c80e42f3 360 d = uvchr_to_utf8(d, uv);
4757a243
LW
361 }
362 else if (uv == none) {
4373e329 363 const int i = UTF8SKIP(s);
0376ff32 364 Move(s, d, i, U8);
9b877dbb
IH
365 d += i;
366 s += i;
4757a243
LW
367 }
368 else if (uv == extra) {
4373e329 369 s += UTF8SKIP(s);
4757a243 370 matches++;
c80e42f3 371 d = uvchr_to_utf8(d, final);
4757a243
LW
372 }
373 else
374 s += UTF8SKIP(s);
1aa99e6b 375
9b877dbb 376 if (d > dend) {
4373e329
AL
377 const STRLEN clen = d - dstart;
378 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
9b877dbb 379 if (!grows)
7d85a32c 380 Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__);
89ebb4a3 381 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
1aa99e6b
IH
382 d = dstart + clen;
383 dend = dstart + nlen;
384 }
4757a243 385 }
16ec844d 386 if (grows || hibit) {
9b877dbb
IH
387 sv_setpvn(sv, (char*)dstart, d - dstart);
388 Safefree(dstart);
16ec844d
IH
389 if (grows && hibit)
390 Safefree(start);
9b877dbb
IH
391 }
392 else {
393 *d = '\0';
394 SvCUR_set(sv, d - dstart);
395 }
4757a243 396 SvSETMAGIC(sv);
1aa99e6b 397 SvUTF8_on(sv);
4757a243
LW
398
399 return matches;
400}
401
942e002e 402STATIC I32
c395bd6c 403S_do_trans_count_utf8(pTHX_ SV * const sv)
4757a243 404{
93524f2b 405 const U8 *s;
cbbf8932
AL
406 const U8 *start = NULL;
407 const U8 *send;
4757a243
LW
408 I32 matches = 0;
409 STRLEN len;
043e41b8
DM
410 SV* const rv =
411#ifdef USE_ITHREADS
412 PAD_SVl(cPADOP->op_padix);
413#else
ad64d0ec 414 MUTABLE_SV(cSVOP->op_sv);
043e41b8 415#endif
85fbaab2 416 HV* const hv = MUTABLE_HV(SvRV(rv));
a4fc7abc 417 SV* const * const svp = hv_fetchs(hv, "NONE", FALSE);
f54cb97a
AL
418 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
419 const UV extra = none + 1;
1aa99e6b 420 U8 hibit = 0;
4757a243 421
7918f24d
NC
422 PERL_ARGS_ASSERT_DO_TRANS_COUNT_UTF8;
423
9138d6ca 424 s = (const U8*)SvPV_nomg_const(sv, len);
1aa99e6b 425 if (!SvUTF8(sv)) {
4373e329 426 const U8 *t = s;
c4420975 427 const U8 * const e = s + len;
c4d5f83a 428 while (t < e) {
4373e329 429 const U8 ch = *t++;
6f2d5cbc 430 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
fabdb6c0
AL
431 if (hibit) {
432 start = s = bytes_to_utf8(s, &len);
1aa99e6b 433 break;
fabdb6c0 434 }
c4d5f83a 435 }
1aa99e6b 436 }
4757a243
LW
437 send = s + len;
438
439 while (s < send) {
c4420975
AL
440 const UV uv = swash_fetch(rv, s, TRUE);
441 if (uv < none || uv == extra)
4757a243 442 matches++;
834a4ddd 443 s += UTF8SKIP(s);
4757a243 444 }
1aa99e6b
IH
445 if (hibit)
446 Safefree(start);
4757a243
LW
447
448 return matches;
449}
450
942e002e 451STATIC I32
c395bd6c 452S_do_trans_complex_utf8(pTHX_ SV * const sv)
4757a243 453{
1aa99e6b 454 U8 *start, *send;
4757a243
LW
455 U8 *d;
456 I32 matches = 0;
4373e329
AL
457 const I32 squash = PL_op->op_private & OPpTRANS_SQUASH;
458 const I32 del = PL_op->op_private & OPpTRANS_DELETE;
459 const I32 grows = PL_op->op_private & OPpTRANS_GROWS;
043e41b8
DM
460 SV* const rv =
461#ifdef USE_ITHREADS
462 PAD_SVl(cPADOP->op_padix);
463#else
ad64d0ec 464 MUTABLE_SV(cSVOP->op_sv);
043e41b8 465#endif
85fbaab2 466 HV * const hv = MUTABLE_HV(SvRV(rv));
a4fc7abc 467 SV * const *svp = hv_fetchs(hv, "NONE", FALSE);
f54cb97a
AL
468 const UV none = svp ? SvUV(*svp) : 0x7fffffff;
469 const UV extra = none + 1;
b7953727 470 UV final = 0;
45005bfb 471 bool havefinal = FALSE;
4757a243 472 STRLEN len;
1aa99e6b 473 U8 *dstart, *dend;
1aa99e6b 474 U8 hibit = 0;
9138d6ca 475 U8 *s = (U8*)SvPV_nomg(sv, len);
7918f24d
NC
476
477 PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8;
478
c395bd6c 479 if (!SvUTF8(sv)) {
53c1dcc0
AL
480 const U8 *t = s;
481 const U8 * const e = s + len;
c4d5f83a 482 while (t < e) {
f54cb97a 483 const U8 ch = *t++;
6f2d5cbc 484 hibit = !NATIVE_BYTE_IS_INVARIANT(ch);
fabdb6c0
AL
485 if (hibit) {
486 s = bytes_to_utf8(s, &len);
1aa99e6b 487 break;
fabdb6c0 488 }
c4d5f83a 489 }
1aa99e6b 490 }
4757a243 491 send = s + len;
1aa99e6b 492 start = s;
4757a243 493
a4fc7abc 494 svp = hv_fetchs(hv, "FINAL", FALSE);
45005bfb 495 if (svp) {
4757a243 496 final = SvUV(*svp);
45005bfb
JH
497 havefinal = TRUE;
498 }
4757a243 499
9b877dbb
IH
500 if (grows) {
501 /* d needs to be bigger than s, in case e.g. upgrading is required */
a02a5408 502 Newx(d, len * 3 + UTF8_MAXBYTES, U8);
9b877dbb
IH
503 dend = d + len * 3;
504 dstart = d;
505 }
506 else {
507 dstart = d = s;
508 dend = d + len;
509 }
4757a243
LW
510
511 if (squash) {
512 UV puv = 0xfeedface;
513 while (s < send) {
f54cb97a 514 UV uv = swash_fetch(rv, s, TRUE);
9041c2e3 515
9b877dbb 516 if (d > dend) {
4373e329
AL
517 const STRLEN clen = d - dstart;
518 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
9b877dbb 519 if (!grows)
7d85a32c 520 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
89ebb4a3 521 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
1aa99e6b
IH
522 d = dstart + clen;
523 dend = dstart + nlen;
4757a243
LW
524 }
525 if (uv < none) {
526 matches++;
94472101 527 s += UTF8SKIP(s);
4757a243 528 if (uv != puv) {
c80e42f3 529 d = uvchr_to_utf8(d, uv);
4757a243
LW
530 puv = uv;
531 }
4757a243
LW
532 continue;
533 }
534 else if (uv == none) { /* "none" is unmapped character */
4373e329 535 const int i = UTF8SKIP(s);
0376ff32 536 Move(s, d, i, U8);
9b877dbb
IH
537 d += i;
538 s += i;
4757a243
LW
539 puv = 0xfeedface;
540 continue;
a0ed51b3 541 }
4757a243
LW
542 else if (uv == extra && !del) {
543 matches++;
45005bfb
JH
544 if (havefinal) {
545 s += UTF8SKIP(s);
546 if (puv != final) {
c80e42f3 547 d = uvchr_to_utf8(d, final);
45005bfb
JH
548 puv = final;
549 }
550 }
551 else {
552 STRLEN len;
c80e42f3 553 uv = utf8n_to_uvchr(s, send - s, &len, UTF8_ALLOW_DEFAULT);
45005bfb 554 if (uv != puv) {
0376ff32 555 Move(s, d, len, U8);
45005bfb
JH
556 d += len;
557 puv = uv;
558 }
559 s += len;
4757a243 560 }
4757a243
LW
561 continue;
562 }
01ec43d0
GS
563 matches++; /* "none+1" is delete character */
564 s += UTF8SKIP(s);
a0ed51b3 565 }
79072805
LW
566 }
567 else {
4757a243 568 while (s < send) {
f54cb97a 569 const UV uv = swash_fetch(rv, s, TRUE);
9b877dbb 570 if (d > dend) {
f54cb97a
AL
571 const STRLEN clen = d - dstart;
572 const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES;
9b877dbb 573 if (!grows)
7d85a32c 574 Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__);
89ebb4a3 575 Renew(dstart, nlen + UTF8_MAXBYTES, U8);
1aa99e6b
IH
576 d = dstart + clen;
577 dend = dstart + nlen;
a0ed51b3 578 }
4757a243
LW
579 if (uv < none) {
580 matches++;
01ec43d0 581 s += UTF8SKIP(s);
c80e42f3 582 d = uvchr_to_utf8(d, uv);
4757a243 583 continue;
a0ed51b3 584 }
4757a243 585 else if (uv == none) { /* "none" is unmapped character */
f54cb97a 586 const int i = UTF8SKIP(s);
0376ff32 587 Move(s, d, i, U8);
9b877dbb
IH
588 d += i;
589 s += i;
4757a243 590 continue;
79072805 591 }
4757a243
LW
592 else if (uv == extra && !del) {
593 matches++;
01ec43d0 594 s += UTF8SKIP(s);
c80e42f3 595 d = uvchr_to_utf8(d, final);
4757a243
LW
596 continue;
597 }
01ec43d0
GS
598 matches++; /* "none+1" is delete character */
599 s += UTF8SKIP(s);
79072805 600 }
4757a243 601 }
16ec844d 602 if (grows || hibit) {
9b877dbb
IH
603 sv_setpvn(sv, (char*)dstart, d - dstart);
604 Safefree(dstart);
16ec844d
IH
605 if (grows && hibit)
606 Safefree(start);
9b877dbb
IH
607 }
608 else {
609 *d = '\0';
610 SvCUR_set(sv, d - dstart);
611 }
1aa99e6b 612 SvUTF8_on(sv);
4757a243
LW
613 SvSETMAGIC(sv);
614
615 return matches;
616}
617
618I32
864dbfa3 619Perl_do_trans(pTHX_ SV *sv)
4757a243
LW
620{
621 STRLEN len;
4373e329 622 const I32 hasutf = (PL_op->op_private &
036b4402 623 (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF));
4757a243 624
7918f24d
NC
625 PERL_ARGS_ASSERT_DO_TRANS;
626
3788ef8f 627 if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) {
cb077ed2 628 Perl_croak_no_modify();
2233f375 629 }
10516c54 630 (void)SvPV_const(sv, len);
4757a243
LW
631 if (!len)
632 return 0;
d59e14db 633 if (!(PL_op->op_private & OPpTRANS_IDENTICAL)) {
4499db73 634 if (!SvPOKp(sv) || SvTHINKFIRST(sv))
b4cc4d79 635 (void)SvPV_force_nomg(sv, len);
2de7b02f 636 (void)SvPOK_only_UTF8(sv);
d59e14db 637 }
4757a243 638
cea2e8a9 639 DEBUG_t( Perl_deb(aTHX_ "2.TBL\n"));
4757a243 640
a77e643a
RGS
641 switch (PL_op->op_private & ~hasutf & (
642 OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL|
643 OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) {
4757a243 644 case 0:
01ec43d0
GS
645 if (hasutf)
646 return do_trans_simple_utf8(sv);
647 else
648 return do_trans_simple(sv);
4757a243
LW
649
650 case OPpTRANS_IDENTICAL:
05d340b8 651 case OPpTRANS_IDENTICAL|OPpTRANS_COMPLEMENT:
01ec43d0
GS
652 if (hasutf)
653 return do_trans_count_utf8(sv);
654 else
655 return do_trans_count(sv);
4757a243
LW
656
657 default:
01ec43d0 658 if (hasutf)
036b4402 659 return do_trans_complex_utf8(sv);
4757a243 660 else
036b4402 661 return do_trans_complex(sv);
79072805 662 }
79072805
LW
663}
664
665void
5aaab254 666Perl_do_join(pTHX_ SV *sv, SV *delim, SV **mark, SV **sp)
79072805 667{
53c1dcc0 668 SV ** const oldmark = mark;
eb578fdb
KW
669 I32 items = sp - mark;
670 STRLEN len;
463ee0b2 671 STRLEN delimlen;
79072805 672
7918f24d
NC
673 PERL_ARGS_ASSERT_DO_JOIN;
674
b9ac451d 675 (void) SvPV_const(delim, delimlen); /* stringify and get the delimlen */
5ba99574 676 /* SvCUR assumes it's SvPOK() and woe betide you if it's not. */
516a5887 677
79072805
LW
678 mark++;
679 len = (items > 0 ? (delimlen * (items - 1) ) : 0);
862a34c6 680 SvUPGRADE(sv, SVt_PV);
79072805
LW
681 if (SvLEN(sv) < len + items) { /* current length is way too short */
682 while (items-- > 0) {
1426bbf4 683 if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) {
f54cb97a 684 STRLEN tmplen;
5c144d81 685 SvPV_const(*mark, tmplen);
463ee0b2 686 len += tmplen;
79072805
LW
687 }
688 mark++;
689 }
690 SvGROW(sv, len + 1); /* so try to pre-extend */
691
692 mark = oldmark;
db7c17d7 693 items = sp - mark;
79072805
LW
694 ++mark;
695 }
696
76f68e9b 697 sv_setpvs(sv, "");
e4803c42 698 /* sv_setpv retains old UTF8ness [perl #24846] */
fb622db0 699 SvUTF8_off(sv);
e4803c42 700
284167a5 701 if (TAINTING_get && SvMAGICAL(sv))
8d6d96c1
HS
702 SvTAINTED_off(sv);
703
463ee0b2 704 if (items-- > 0) {
92d29cee
JH
705 if (*mark)
706 sv_catsv(sv, *mark);
463ee0b2
LW
707 mark++;
708 }
8d6d96c1 709
c512ce4f 710 if (delimlen) {
79072805 711 for (; items > 0; items--,mark++) {
760209f8 712 sv_catsv_nomg(sv,delim);
79072805
LW
713 sv_catsv(sv,*mark);
714 }
715 }
716 else {
717 for (; items > 0; items--,mark++)
718 sv_catsv(sv,*mark);
719 }
720 SvSETMAGIC(sv);
721}
722
723void
864dbfa3 724Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg)
79072805 725{
46fc3d4c 726 STRLEN patlen;
53c1dcc0 727 const char * const pat = SvPV_const(*sarg, patlen);
46fc3d4c
PP
728 bool do_taint = FALSE;
729
7918f24d
NC
730 PERL_ARGS_ASSERT_DO_SPRINTF;
731
e06d98fb
DM
732 if (SvTAINTED(*sarg))
733 TAINT_PROPER(
734 (PL_op && PL_op->op_type < OP_max)
735 ? (PL_op->op_type == OP_PRTF)
736 ? "printf"
737 : PL_op_name[PL_op->op_type]
738 : "(unknown)"
739 );
5b781b5b 740 SvUTF8_off(sv);
2cf2cfc6
A
741 if (DO_UTF8(*sarg))
742 SvUTF8_on(sv);
4608196e 743 sv_vsetpvfn(sv, pat, patlen, NULL, sarg + 1, len - 1, &do_taint);
79072805 744 SvSETMAGIC(sv);
46fc3d4c
PP
745 if (do_taint)
746 SvTAINTED_on(sv);
79072805
LW
747}
748
33b45480 749/* currently converts input to bytes if possible, but doesn't sweat failure */
81e118e0 750UV
fcb8da00 751Perl_do_vecget(pTHX_ SV *sv, SSize_t offset, int size)
81e118e0 752{
bbb8a7e0 753 STRLEN srclen, len, uoffset, bitoffs = 0;
fc9668ae
DM
754 const I32 svpv_flags = ((PL_op->op_flags & OPf_MOD || LVRET)
755 ? SV_UNDEF_RETURNS_NULL : 0);
756 unsigned char *s = (unsigned char *)
757 SvPV_flags(sv, srclen, (svpv_flags|SV_GMAGIC));
81e118e0
JH
758 UV retnum = 0;
759
032061d2 760 if (!s) {
fc9668ae 761 s = (unsigned char *)"";
032061d2
BF
762 }
763
7918f24d
NC
764 PERL_ARGS_ASSERT_DO_VECGET;
765
a50d7633 766 if (offset < 0)
61f9802b 767 return 0;
8e84507e 768 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
a50d7633 769 Perl_croak(aTHX_ "Illegal number of bits in vec");
246fae53 770
fc9668ae 771 if (SvUTF8(sv)) {
33b45480 772 (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE);
fc9668ae
DM
773 /* PVX may have changed */
774 s = (unsigned char *) SvPV_flags(sv, srclen, svpv_flags);
775 }
246fae53 776
bbb8a7e0
MHM
777 if (size < 8) {
778 bitoffs = ((offset%8)*size)%8;
779 uoffset = offset/(8/size);
780 }
781 else if (size > 8)
782 uoffset = offset*(size/8);
783 else
784 uoffset = offset;
785
786 len = uoffset + (bitoffs + size + 7)/8; /* required number of bytes */
81e118e0
JH
787 if (len > srclen) {
788 if (size <= 8)
789 retnum = 0;
790 else {
81e118e0 791 if (size == 16) {
bb7a0f54 792 if (uoffset >= srclen)
81e118e0
JH
793 retnum = 0;
794 else
bb7a0f54 795 retnum = (UV) s[uoffset] << 8;
81e118e0
JH
796 }
797 else if (size == 32) {
bb7a0f54 798 if (uoffset >= srclen)
81e118e0 799 retnum = 0;
bb7a0f54 800 else if (uoffset + 1 >= srclen)
81e118e0 801 retnum =
bb7a0f54
MHM
802 ((UV) s[uoffset ] << 24);
803 else if (uoffset + 2 >= srclen)
81e118e0 804 retnum =
bb7a0f54
MHM
805 ((UV) s[uoffset ] << 24) +
806 ((UV) s[uoffset + 1] << 16);
81e118e0
JH
807 else
808 retnum =
bb7a0f54
MHM
809 ((UV) s[uoffset ] << 24) +
810 ((UV) s[uoffset + 1] << 16) +
811 ( s[uoffset + 2] << 8);
81e118e0 812 }
d7d93a81 813#ifdef UV_IS_QUAD
c5a0f51a 814 else if (size == 64) {
a2a5de95
NC
815 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
816 "Bit vector size > 32 non-portable");
bb7a0f54 817 if (uoffset >= srclen)
c5a0f51a 818 retnum = 0;
bb7a0f54 819 else if (uoffset + 1 >= srclen)
c5a0f51a 820 retnum =
bb7a0f54
MHM
821 (UV) s[uoffset ] << 56;
822 else if (uoffset + 2 >= srclen)
c5a0f51a 823 retnum =
bb7a0f54
MHM
824 ((UV) s[uoffset ] << 56) +
825 ((UV) s[uoffset + 1] << 48);
826 else if (uoffset + 3 >= srclen)
c5a0f51a 827 retnum =
bb7a0f54
MHM
828 ((UV) s[uoffset ] << 56) +
829 ((UV) s[uoffset + 1] << 48) +
830 ((UV) s[uoffset + 2] << 40);
831 else if (uoffset + 4 >= srclen)
c5a0f51a 832 retnum =
bb7a0f54
MHM
833 ((UV) s[uoffset ] << 56) +
834 ((UV) s[uoffset + 1] << 48) +
835 ((UV) s[uoffset + 2] << 40) +
836 ((UV) s[uoffset + 3] << 32);
837 else if (uoffset + 5 >= srclen)
c5a0f51a 838 retnum =
bb7a0f54
MHM
839 ((UV) s[uoffset ] << 56) +
840 ((UV) s[uoffset + 1] << 48) +
841 ((UV) s[uoffset + 2] << 40) +
842 ((UV) s[uoffset + 3] << 32) +
e7aca353 843 ((UV) s[uoffset + 4] << 24);
bb7a0f54 844 else if (uoffset + 6 >= srclen)
c5a0f51a 845 retnum =
bb7a0f54
MHM
846 ((UV) s[uoffset ] << 56) +
847 ((UV) s[uoffset + 1] << 48) +
848 ((UV) s[uoffset + 2] << 40) +
849 ((UV) s[uoffset + 3] << 32) +
850 ((UV) s[uoffset + 4] << 24) +
851 ((UV) s[uoffset + 5] << 16);
c5a0f51a 852 else
8e84507e 853 retnum =
bb7a0f54
MHM
854 ((UV) s[uoffset ] << 56) +
855 ((UV) s[uoffset + 1] << 48) +
856 ((UV) s[uoffset + 2] << 40) +
857 ((UV) s[uoffset + 3] << 32) +
858 ((UV) s[uoffset + 4] << 24) +
859 ((UV) s[uoffset + 5] << 16) +
e7aca353 860 ((UV) s[uoffset + 6] << 8);
c5a0f51a
JH
861 }
862#endif
81e118e0
JH
863 }
864 }
865 else if (size < 8)
bbb8a7e0 866 retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1);
81e118e0 867 else {
81e118e0 868 if (size == 8)
bb7a0f54 869 retnum = s[uoffset];
81e118e0
JH
870 else if (size == 16)
871 retnum =
bb7a0f54
MHM
872 ((UV) s[uoffset] << 8) +
873 s[uoffset + 1];
81e118e0
JH
874 else if (size == 32)
875 retnum =
bb7a0f54
MHM
876 ((UV) s[uoffset ] << 24) +
877 ((UV) s[uoffset + 1] << 16) +
878 ( s[uoffset + 2] << 8) +
879 s[uoffset + 3];
d7d93a81 880#ifdef UV_IS_QUAD
c5a0f51a 881 else if (size == 64) {
a2a5de95
NC
882 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
883 "Bit vector size > 32 non-portable");
c5a0f51a 884 retnum =
bb7a0f54
MHM
885 ((UV) s[uoffset ] << 56) +
886 ((UV) s[uoffset + 1] << 48) +
887 ((UV) s[uoffset + 2] << 40) +
888 ((UV) s[uoffset + 3] << 32) +
889 ((UV) s[uoffset + 4] << 24) +
890 ((UV) s[uoffset + 5] << 16) +
891 ( s[uoffset + 6] << 8) +
892 s[uoffset + 7];
c5a0f51a
JH
893 }
894#endif
81e118e0
JH
895 }
896
897 return retnum;
898}
899
33b45480
SB
900/* currently converts input to bytes if possible but doesn't sweat failures,
901 * although it does ensure that the string it clobbers is not marked as
902 * utf8-valid any more
903 */
79072805 904void
864dbfa3 905Perl_do_vecset(pTHX_ SV *sv)
79072805 906{
eb578fdb
KW
907 SSize_t offset, bitoffs = 0;
908 int size;
909 unsigned char *s;
910 UV lval;
79072805 911 I32 mask;
a0d0e21e
LW
912 STRLEN targlen;
913 STRLEN len;
c4420975 914 SV * const targ = LvTARG(sv);
79072805 915
7918f24d
NC
916 PERL_ARGS_ASSERT_DO_VECSET;
917
8990e307
LW
918 if (!targ)
919 return;
032061d2
BF
920 s = (unsigned char*)SvPV_force_flags(targ, targlen,
921 SV_GMAGIC | SV_UNDEF_RETURNS_NULL);
246fae53 922 if (SvUTF8(targ)) {
33b45480
SB
923 /* This is handled by the SvPOK_only below...
924 if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE))
925 SvUTF8_off(targ);
926 */
927 (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE);
246fae53
MG
928 }
929
4ebbc975 930 (void)SvPOK_only(targ);
81e118e0 931 lval = SvUV(sv);
79072805 932 offset = LvTARGOFF(sv);
fe58ced6 933 if (offset < 0)
ed9aa3b7 934 Perl_croak(aTHX_ "Negative offset to vec in lvalue context");
79072805 935 size = LvTARGLEN(sv);
8e84507e 936 if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */
a50d7633 937 Perl_croak(aTHX_ "Illegal number of bits in vec");
8e84507e 938
bbb8a7e0
MHM
939 if (size < 8) {
940 bitoffs = ((offset%8)*size)%8;
941 offset /= 8/size;
942 }
943 else if (size > 8)
944 offset *= size/8;
945
946 len = offset + (bitoffs + size + 7)/8; /* required number of bytes */
a0d0e21e
LW
947 if (len > targlen) {
948 s = (unsigned char*)SvGROW(targ, len + 1);
12ae5dfc 949 (void)memzero((char *)(s + targlen), len - targlen + 1);
a0d0e21e
LW
950 SvCUR_set(targ, len);
951 }
8e84507e 952
79072805
LW
953 if (size < 8) {
954 mask = (1 << size) - 1;
79072805 955 lval &= mask;
bbb8a7e0
MHM
956 s[offset] &= ~(mask << bitoffs);
957 s[offset] |= lval << bitoffs;
79072805
LW
958 }
959 else {
960 if (size == 8)
eb160463 961 s[offset ] = (U8)( lval & 0xff);
79072805 962 else if (size == 16) {
eb160463
GS
963 s[offset ] = (U8)((lval >> 8) & 0xff);
964 s[offset+1] = (U8)( lval & 0xff);
79072805
LW
965 }
966 else if (size == 32) {
eb160463
GS
967 s[offset ] = (U8)((lval >> 24) & 0xff);
968 s[offset+1] = (U8)((lval >> 16) & 0xff);
969 s[offset+2] = (U8)((lval >> 8) & 0xff);
970 s[offset+3] = (U8)( lval & 0xff);
c5a0f51a 971 }
d7d93a81 972#ifdef UV_IS_QUAD
c5a0f51a 973 else if (size == 64) {
a2a5de95
NC
974 Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE),
975 "Bit vector size > 32 non-portable");
eb160463
GS
976 s[offset ] = (U8)((lval >> 56) & 0xff);
977 s[offset+1] = (U8)((lval >> 48) & 0xff);
978 s[offset+2] = (U8)((lval >> 40) & 0xff);
979 s[offset+3] = (U8)((lval >> 32) & 0xff);
980 s[offset+4] = (U8)((lval >> 24) & 0xff);
981 s[offset+5] = (U8)((lval >> 16) & 0xff);
982 s[offset+6] = (U8)((lval >> 8) & 0xff);
983 s[offset+7] = (U8)( lval & 0xff);
79072805 984 }
dc1e3f56 985#endif
79072805 986 }
7bb043c3 987 SvSETMAGIC(targ);
79072805
LW
988}
989
990void
864dbfa3 991Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right)
79072805
LW
992{
993#ifdef LIBERAL
eb578fdb
KW
994 long *dl;
995 long *ll;
996 long *rl;
79072805 997#endif
eb578fdb 998 char *dc;
463ee0b2
LW
999 STRLEN leftlen;
1000 STRLEN rightlen;
eb578fdb
KW
1001 const char *lc;
1002 const char *rc;
1003 STRLEN len;
bb7a0f54 1004 STRLEN lensave;
e62f0680
NC
1005 const char *lsave;
1006 const char *rsave;
12abf4f0
NC
1007 bool left_utf;
1008 bool right_utf;
bb7a0f54 1009 STRLEN needlen = 0;
0c57e439 1010
7918f24d 1011 PERL_ARGS_ASSERT_DO_VOP;
79072805 1012
6b349a5c 1013 if (sv != left || (optype != OP_BIT_AND && !SvOK(sv)))
76f68e9b 1014 sv_setpvs(sv, ""); /* avoid undef warning on |= and ^= */
8c8eee82
BM
1015 if (sv == left) {
1016 lsave = lc = SvPV_force_nomg(left, leftlen);
1017 }
1018 else {
1019 lsave = lc = SvPV_nomg_const(left, leftlen);
1020 SvPV_force_nomg_nolen(sv);
1021 }
e62f0680 1022 rsave = rc = SvPV_nomg_const(right, rightlen);
12abf4f0
NC
1023
1024 /* This need to come after SvPV to ensure that string overloading has
1025 fired off. */
1026
1027 left_utf = DO_UTF8(left);
1028 right_utf = DO_UTF8(right);
1029
1030 if (left_utf && !right_utf) {
1031 /* Avoid triggering overloading again by using temporaries.
1032 Maybe there should be a variant of sv_utf8_upgrade that takes pvn
1033 */
59cd0e26 1034 right = newSVpvn_flags(rsave, rightlen, SVs_TEMP);
12abf4f0
NC
1035 sv_utf8_upgrade(right);
1036 rsave = rc = SvPV_nomg_const(right, rightlen);
1037 right_utf = TRUE;
1038 }
1039 else if (!left_utf && right_utf) {
59cd0e26 1040 left = newSVpvn_flags(lsave, leftlen, SVs_TEMP);
12abf4f0
NC
1041 sv_utf8_upgrade(left);
1042 lsave = lc = SvPV_nomg_const(left, leftlen);
1043 left_utf = TRUE;
1044 }
1045
93a17b20 1046 len = leftlen < rightlen ? leftlen : rightlen;
a0d0e21e 1047 lensave = len;
9fdd7463
JH
1048 SvCUR_set(sv, len);
1049 (void)SvPOK_only(sv);
c9b3c8d0
JH
1050 if ((left_utf || right_utf) && (sv == left || sv == right)) {
1051 needlen = optype == OP_BIT_AND ? len : leftlen + rightlen;
a02a5408 1052 Newxz(dc, needlen + 1, char);
c9b3c8d0
JH
1053 }
1054 else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) {
2596d9fe 1055 dc = SvPV_force_nomg_nolen(sv);
bb7a0f54
MHM
1056 if (SvLEN(sv) < len + 1) {
1057 dc = SvGROW(sv, len + 1);
ff68c719
PP
1058 (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1);
1059 }
c9b3c8d0
JH
1060 if (optype != OP_BIT_AND && (left_utf || right_utf))
1061 dc = SvGROW(sv, leftlen + rightlen + 1);
ff68c719
PP
1062 }
1063 else {
bb7a0f54
MHM
1064 needlen = optype == OP_BIT_AND
1065 ? len : (leftlen > rightlen ? leftlen : rightlen);
a02a5408 1066 Newxz(dc, needlen + 1, char);
aa0a69cb 1067 sv_usepvn_flags(sv, dc, needlen, SV_HAS_TRAILING_NUL);
ff68c719 1068 dc = SvPVX(sv); /* sv_usepvn() calls Renew() */
79072805 1069 }
0c57e439
GS
1070 if (left_utf || right_utf) {
1071 UV duc, luc, ruc;
794a0d33
JH
1072 char *dcorig = dc;
1073 char *dcsave = NULL;
0c57e439
GS
1074 STRLEN lulen = leftlen;
1075 STRLEN rulen = rightlen;
ba210ebe 1076 STRLEN ulen;
0c57e439
GS
1077
1078 switch (optype) {
1079 case OP_BIT_AND:
1080 while (lulen && rulen) {
9041c2e3 1081 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439
GS
1082 lc += ulen;
1083 lulen -= ulen;
9041c2e3 1084 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439
GS
1085 rc += ulen;
1086 rulen -= ulen;
1087 duc = luc & ruc;
9041c2e3 1088 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
0c57e439 1089 }
3ce4c532
NC
1090 if (sv == left || sv == right)
1091 (void)sv_usepvn(sv, dcorig, needlen);
794a0d33 1092 SvCUR_set(sv, dc - dcorig);
0c57e439
GS
1093 break;
1094 case OP_BIT_XOR:
1095 while (lulen && rulen) {
9041c2e3 1096 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439
GS
1097 lc += ulen;
1098 lulen -= ulen;
9041c2e3 1099 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439
GS
1100 rc += ulen;
1101 rulen -= ulen;
1102 duc = luc ^ ruc;
9041c2e3 1103 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
0c57e439
GS
1104 }
1105 goto mop_up_utf;
1106 case OP_BIT_OR:
1107 while (lulen && rulen) {
9041c2e3 1108 luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439
GS
1109 lc += ulen;
1110 lulen -= ulen;
9041c2e3 1111 ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV);
0c57e439
GS
1112 rc += ulen;
1113 rulen -= ulen;
1114 duc = luc | ruc;
9041c2e3 1115 dc = (char*)uvchr_to_utf8((U8*)dc, duc);
0c57e439
GS
1116 }
1117 mop_up_utf:
794a0d33
JH
1118 if (rulen)
1119 dcsave = savepvn(rc, rulen);
1120 else if (lulen)
1121 dcsave = savepvn(lc, lulen);
3ce4c532 1122 if (sv == left || sv == right)
4bac9ae4 1123 (void)sv_usepvn(sv, dcorig, needlen); /* uses Renew(); defaults to nomg */
794a0d33 1124 SvCUR_set(sv, dc - dcorig);
0c57e439 1125 if (rulen)
4bac9ae4 1126 sv_catpvn_nomg(sv, dcsave, rulen);
0c57e439 1127 else if (lulen)
4bac9ae4 1128 sv_catpvn_nomg(sv, dcsave, lulen);
0c57e439
GS
1129 else
1130 *SvEND(sv) = '\0';
794a0d33 1131 Safefree(dcsave);
0c57e439 1132 break;
41547412
NC
1133 default:
1134 if (sv == left || sv == right)
1135 Safefree(dcorig);
c395bd6c
AL
1136 Perl_croak(aTHX_ "panic: do_vop called for op %u (%s)",
1137 (unsigned)optype, PL_op_name[optype]);
0c57e439
GS
1138 }
1139 SvUTF8_on(sv);
1140 goto finish;
1141 }
1142 else
79072805
LW
1143#ifdef LIBERAL
1144 if (len >= sizeof(long)*4 &&
bb7a0f54
MHM
1145 !((unsigned long)dc % sizeof(long)) &&
1146 !((unsigned long)lc % sizeof(long)) &&
1147 !((unsigned long)rc % sizeof(long))) /* It's almost always aligned... */
79072805 1148 {
bb7a0f54 1149 const STRLEN remainder = len % (sizeof(long)*4);
79072805
LW
1150 len /= (sizeof(long)*4);
1151
1152 dl = (long*)dc;
1153 ll = (long*)lc;
1154 rl = (long*)rc;
1155
1156 switch (optype) {
1157 case OP_BIT_AND:
1158 while (len--) {
1159 *dl++ = *ll++ & *rl++;
1160 *dl++ = *ll++ & *rl++;
1161 *dl++ = *ll++ & *rl++;
1162 *dl++ = *ll++ & *rl++;
1163 }
1164 break;
a0d0e21e 1165 case OP_BIT_XOR:
79072805
LW
1166 while (len--) {
1167 *dl++ = *ll++ ^ *rl++;
1168 *dl++ = *ll++ ^ *rl++;
1169 *dl++ = *ll++ ^ *rl++;
1170 *dl++ = *ll++ ^ *rl++;
1171 }
1172 break;
1173 case OP_BIT_OR:
1174 while (len--) {
1175 *dl++ = *ll++ | *rl++;
1176 *dl++ = *ll++ | *rl++;
1177 *dl++ = *ll++ | *rl++;
1178 *dl++ = *ll++ | *rl++;
1179 }
1180 }
1181
1182 dc = (char*)dl;
1183 lc = (char*)ll;
1184 rc = (char*)rl;
1185
1186 len = remainder;
1187 }
1188#endif
a0d0e21e 1189 {
a0d0e21e
LW
1190 switch (optype) {
1191 case OP_BIT_AND:
1192 while (len--)
1193 *dc++ = *lc++ & *rc++;
1a787b95 1194 *dc = '\0';
a0d0e21e
LW
1195 break;
1196 case OP_BIT_XOR:
1197 while (len--)
1198 *dc++ = *lc++ ^ *rc++;
1199 goto mop_up;
1200 case OP_BIT_OR:
1201 while (len--)
1202 *dc++ = *lc++ | *rc++;
1203 mop_up:
1204 len = lensave;
bb7a0f54 1205 if (rightlen > len)
4bac9ae4 1206 sv_catpvn_nomg(sv, rsave + len, rightlen - len);
eb160463 1207 else if (leftlen > (STRLEN)len)
4bac9ae4 1208 sv_catpvn_nomg(sv, lsave + len, leftlen - len);
4633a7c4
LW
1209 else
1210 *SvEND(sv) = '\0';
a0d0e21e
LW
1211 break;
1212 }
79072805 1213 }
0c57e439 1214finish:
fb73857a 1215 SvTAINT(sv);
79072805 1216}
463ee0b2 1217
b1c05ba5
DM
1218
1219/* used for: pp_keys(), pp_values() */
1220
463ee0b2 1221OP *
cea2e8a9 1222Perl_do_kv(pTHX)
463ee0b2 1223{
39644a26 1224 dSP;
73ff03e8 1225 HV * const keys = MUTABLE_HV(POPs);
eb578fdb 1226 HE *entry;
f54cb97a
AL
1227 const I32 gimme = GIMME_V;
1228 const I32 dokv = (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV);
cba5a3b0
DG
1229 /* op_type is OP_RKEYS/OP_RVALUES if pp_rkeys delegated to here */
1230 const I32 dokeys = dokv || (PL_op->op_type == OP_KEYS || PL_op->op_type == OP_RKEYS);
1231 const I32 dovalues = dokv || (PL_op->op_type == OP_VALUES || PL_op->op_type == OP_RVALUES);
463ee0b2 1232
800e9ae0 1233 (void)hv_iterinit(keys); /* always reset iterator regardless */
748a9306 1234
54310121 1235 if (gimme == G_VOID)
aa689395
PP
1236 RETURN;
1237
54310121 1238 if (gimme == G_SCALAR) {
78f9721b 1239 if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */
2154eca7
EB
1240 SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */
1241 sv_magic(ret, NULL, PERL_MAGIC_nkeys, NULL, 0);
1242 LvTYPE(ret) = 'k';
1243 LvTARG(ret) = SvREFCNT_inc_simple(keys);
1244 PUSHs(ret);
81714fb9 1245 }
463ee0b2 1246 else {
2154eca7
EB
1247 IV i;
1248 dTARGET;
1249
1250 if (! SvTIED_mg((const SV *)keys, PERL_MAGIC_tied) ) {
1b95d04f 1251 i = HvUSEDKEYS(keys);
2154eca7
EB
1252 }
1253 else {
1254 i = 0;
1255 while (hv_iternext(keys)) i++;
1256 }
1257 PUSHi( i );
463ee0b2 1258 }
463ee0b2
LW
1259 RETURN;
1260 }
1261
1b95d04f 1262 EXTEND(SP, HvUSEDKEYS(keys) * (dokeys + dovalues));
463ee0b2 1263
463ee0b2 1264 PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */
155aba94 1265 while ((entry = hv_iternext(keys))) {
463ee0b2 1266 SPAGAIN;
574c8022 1267 if (dokeys) {
890ce7af 1268 SV* const sv = hv_iterkeysv(entry);
574c8022
JH
1269 XPUSHs(sv); /* won't clobber stack_sp */
1270 }
463ee0b2 1271 if (dovalues) {
f54cb97a 1272 SV *tmpstr;
463ee0b2 1273 PUTBACK;
73ff03e8 1274 tmpstr = hv_iterval(keys,entry);
cea2e8a9 1275 DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu",
46fc3d4c 1276 (unsigned long)HeHASH(entry),
cdd3ba14 1277 (int)HvMAX(keys)+1,
800e9ae0 1278 (unsigned long)(HeHASH(entry) & HvMAX(keys))));
463ee0b2 1279 SPAGAIN;
46fc3d4c 1280 XPUSHs(tmpstr);
463ee0b2
LW
1281 }
1282 PUTBACK;
1283 }
1284 return NORMAL;
1285}
4e35701f 1286
af3babe4
NC
1287/*
1288 * Local variables:
1289 * c-indentation-style: bsd
1290 * c-basic-offset: 4
14d04a33 1291 * indent-tabs-mode: nil
af3babe4
NC
1292 * End:
1293 *
14d04a33 1294 * ex: set ts=8 sts=4 sw=4 et:
37442d52 1295 */