Commit | Line | Data |
---|---|---|
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 | 18 | * ops. For example, both pp_sprintf() and pp_prtf() call the function |
fc7d284e | 19 | * do_sprintf() 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 | ||
334c6444 DM |
30 | |
31 | /* Helper function for do_trans(). | |
32 | * Handles non-utf8 cases(*) not involving the /c, /d, /s flags, | |
33 | * and where search and replacement charlists aren't identical. | |
34 | * (*) i.e. where the search and replacement charlists are non-utf8. sv may | |
35 | * or may not be utf8. | |
36 | */ | |
37 | ||
942e002e | 38 | STATIC I32 |
c395bd6c | 39 | S_do_trans_simple(pTHX_ SV * const sv) |
79072805 | 40 | { |
4757a243 | 41 | I32 matches = 0; |
463ee0b2 | 42 | STRLEN len; |
9138d6ca | 43 | U8 *s = (U8*)SvPV_nomg(sv,len); |
c395bd6c | 44 | U8 * const send = s+len; |
c4420975 | 45 | const short * const tbl = (short*)cPVOP->op_pv; |
7918f24d NC |
46 | |
47 | PERL_ARGS_ASSERT_DO_TRANS_SIMPLE; | |
48 | ||
4757a243 | 49 | if (!tbl) |
7d85a32c | 50 | Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__); |
a0ed51b3 | 51 | |
1e54db1a | 52 | /* First, take care of non-UTF-8 input strings, because they're easy */ |
1aa99e6b | 53 | if (!SvUTF8(sv)) { |
01ec43d0 | 54 | while (s < send) { |
f54cb97a AL |
55 | const I32 ch = tbl[*s]; |
56 | if (ch >= 0) { | |
01ec43d0 | 57 | matches++; |
c4420975 | 58 | *s = (U8)ch; |
01ec43d0 | 59 | } |
c4420975 | 60 | s++; |
01ec43d0 GS |
61 | } |
62 | SvSETMAGIC(sv); | |
9b877dbb IH |
63 | } |
64 | else { | |
c395bd6c AL |
65 | const I32 grows = PL_op->op_private & OPpTRANS_GROWS; |
66 | U8 *d; | |
67 | U8 *dstart; | |
68 | ||
69 | /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */ | |
70 | if (grows) | |
71 | Newx(d, len*2+1, U8); | |
72 | else | |
73 | d = s; | |
74 | dstart = d; | |
75 | while (s < send) { | |
76 | STRLEN ulen; | |
77 | I32 ch; | |
78 | ||
79 | /* Need to check this, otherwise 128..255 won't match */ | |
80 | const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT); | |
81 | if (c < 0x100 && (ch = tbl[c]) >= 0) { | |
82 | matches++; | |
83 | d = uvchr_to_utf8(d, ch); | |
84 | s += ulen; | |
85 | } | |
86 | else { /* No match -> copy */ | |
87 | Move(s, d, ulen, U8); | |
88 | d += ulen; | |
89 | s += ulen; | |
90 | } | |
91 | } | |
92 | if (grows) { | |
93 | sv_setpvn(sv, (char*)dstart, d - dstart); | |
94 | Safefree(dstart); | |
95 | } | |
96 | else { | |
97 | *d = '\0'; | |
98 | SvCUR_set(sv, d - dstart); | |
99 | } | |
100 | SvUTF8_on(sv); | |
101 | SvSETMAGIC(sv); | |
9b877dbb | 102 | } |
4757a243 LW |
103 | return matches; |
104 | } | |
105 | ||
334c6444 DM |
106 | |
107 | /* Helper function for do_trans(). | |
108 | * Handles non-utf8 cases(*) where search and replacement charlists are | |
109 | * identical: so the string isn't modified, and only a count of modifiable | |
110 | * chars is needed. | |
111 | * Note that it doesn't handle /d or /s, since these modify the string | |
112 | * even if the replacement list is empty. | |
113 | * (*) i.e. where the search and replacement charlists are non-utf8. sv may | |
114 | * or may not be utf8. | |
115 | */ | |
116 | ||
942e002e | 117 | STATIC I32 |
c395bd6c | 118 | S_do_trans_count(pTHX_ SV * const sv) |
4757a243 | 119 | { |
4757a243 | 120 | STRLEN len; |
9138d6ca | 121 | const U8 *s = (const U8*)SvPV_nomg_const(sv, len); |
c395bd6c AL |
122 | const U8 * const send = s + len; |
123 | I32 matches = 0; | |
f54cb97a | 124 | const short * const tbl = (short*)cPVOP->op_pv; |
7918f24d NC |
125 | |
126 | PERL_ARGS_ASSERT_DO_TRANS_COUNT; | |
127 | ||
4757a243 | 128 | if (!tbl) |
7d85a32c | 129 | Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__); |
4757a243 | 130 | |
c395bd6c | 131 | if (!SvUTF8(sv)) { |
1aa99e6b IH |
132 | while (s < send) { |
133 | if (tbl[*s++] >= 0) | |
036b4402 | 134 | matches++; |
1aa99e6b | 135 | } |
c395bd6c | 136 | } |
fabdb6c0 AL |
137 | else { |
138 | const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT; | |
1aa99e6b | 139 | while (s < send) { |
1aa99e6b | 140 | STRLEN ulen; |
9f7f3913 | 141 | const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT); |
8973db79 JH |
142 | if (c < 0x100) { |
143 | if (tbl[c] >= 0) | |
144 | matches++; | |
145 | } else if (complement) | |
1aa99e6b IH |
146 | matches++; |
147 | s += ulen; | |
148 | } | |
fabdb6c0 | 149 | } |
4757a243 LW |
150 | |
151 | return matches; | |
152 | } | |
153 | ||
334c6444 DM |
154 | |
155 | /* Helper function for do_trans(). | |
156 | * Handles non-utf8 cases(*) involving the /c, /d, /s flags, | |
157 | * and where search and replacement charlists aren't identical. | |
158 | * (*) i.e. where the search and replacement charlists are non-utf8. sv may | |
159 | * or may not be utf8. | |
160 | */ | |
161 | ||
942e002e | 162 | STATIC I32 |
c395bd6c | 163 | S_do_trans_complex(pTHX_ SV * const sv) |
4757a243 | 164 | { |
c395bd6c | 165 | STRLEN len; |
9138d6ca | 166 | U8 *s = (U8*)SvPV_nomg(sv, len); |
c395bd6c | 167 | U8 * const send = s+len; |
4757a243 | 168 | I32 matches = 0; |
f54cb97a | 169 | const short * const tbl = (short*)cPVOP->op_pv; |
7918f24d NC |
170 | |
171 | PERL_ARGS_ASSERT_DO_TRANS_COMPLEX; | |
172 | ||
4757a243 | 173 | if (!tbl) |
7d85a32c | 174 | Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__); |
4757a243 | 175 | |
c395bd6c AL |
176 | if (!SvUTF8(sv)) { |
177 | U8 *d = s; | |
178 | U8 * const dstart = d; | |
4757a243 | 179 | |
1aa99e6b | 180 | if (PL_op->op_private & OPpTRANS_SQUASH) { |
f54cb97a | 181 | const U8* p = send; |
1aa99e6b | 182 | while (s < send) { |
f54cb97a AL |
183 | const I32 ch = tbl[*s]; |
184 | if (ch >= 0) { | |
eb160463 | 185 | *d = (U8)ch; |
036b4402 | 186 | matches++; |
1aa99e6b IH |
187 | if (p != d - 1 || *p != *d) |
188 | p = d++; | |
189 | } | |
190 | else if (ch == -1) /* -1 is unmapped character */ | |
191 | *d++ = *s; | |
192 | else if (ch == -2) /* -2 is delete character */ | |
193 | matches++; | |
194 | s++; | |
195 | } | |
a0ed51b3 | 196 | } |
1aa99e6b IH |
197 | else { |
198 | while (s < send) { | |
f54cb97a AL |
199 | const I32 ch = tbl[*s]; |
200 | if (ch >= 0) { | |
1aa99e6b | 201 | matches++; |
eb160463 | 202 | *d++ = (U8)ch; |
1aa99e6b IH |
203 | } |
204 | else if (ch == -1) /* -1 is unmapped character */ | |
205 | *d++ = *s; | |
206 | else if (ch == -2) /* -2 is delete character */ | |
207 | matches++; | |
208 | s++; | |
209 | } | |
210 | } | |
76ef7183 | 211 | *d = '\0'; |
1aa99e6b | 212 | SvCUR_set(sv, d - dstart); |
4757a243 | 213 | } |
c395bd6c | 214 | else { /* is utf8 */ |
fabdb6c0 AL |
215 | const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT; |
216 | const I32 grows = PL_op->op_private & OPpTRANS_GROWS; | |
217 | const I32 del = PL_op->op_private & OPpTRANS_DELETE; | |
c395bd6c AL |
218 | U8 *d; |
219 | U8 *dstart; | |
ea088e55 | 220 | SSize_t excess = 0; |
fabdb6c0 | 221 | |
9b877dbb | 222 | if (grows) |
a02a5408 | 223 | Newx(d, len*2+1, U8); |
9b877dbb IH |
224 | else |
225 | d = s; | |
1aa99e6b | 226 | dstart = d; |
f146bab6 | 227 | if (complement) |
ea088e55 DM |
228 | /* number of replacement chars in excess of any 0x00..0xff |
229 | * search characters */ | |
230 | excess = (SSize_t)tbl[0x100]; | |
1aa99e6b IH |
231 | |
232 | if (PL_op->op_private & OPpTRANS_SQUASH) { | |
1aa99e6b IH |
233 | UV pch = 0xfeedface; |
234 | while (s < send) { | |
235 | STRLEN len; | |
9f7f3913 TS |
236 | const UV comp = utf8n_to_uvchr(s, send - s, &len, |
237 | UTF8_ALLOW_DEFAULT); | |
f146bab6 DM |
238 | UV ch; |
239 | short sch; | |
1aa99e6b | 240 | |
8973db79 JH |
241 | if (comp > 0xff) { |
242 | if (!complement) { | |
640af7f1 | 243 | Move(s, d, len, U8); |
8973db79 JH |
244 | d += len; |
245 | } | |
246 | else { | |
334c6444 | 247 | /* use the implicit 0x100..0x7fffffff search range */ |
8973db79 | 248 | matches++; |
f146bab6 DM |
249 | ch = del |
250 | /* setting ch to pch forces char to be deleted */ | |
251 | ? ((excess >= (IV)comp - 0xff) ? (UV)tbl[comp+2] | |
252 | : pch ) | |
253 | ||
254 | : ( (excess == -1) ? comp : | |
255 | (UV)(( excess == 0 | |
256 | || excess < (IV)comp - 0xff) ? tbl[0x101] | |
257 | : tbl[comp+2] | |
258 | ) | |
259 | ); | |
5f636448 DM |
260 | if (ch != pch) { |
261 | d = uvchr_to_utf8(d, ch); | |
262 | pch = ch; | |
263 | } | |
264 | s += len; | |
265 | continue; | |
8973db79 | 266 | } |
9b877dbb | 267 | } |
f146bab6 DM |
268 | else if ((sch = tbl[comp]) >= 0) { |
269 | ch = (UV)sch; | |
1aa99e6b | 270 | matches++; |
f146bab6 | 271 | if (ch != pch) { |
9041c2e3 | 272 | d = uvchr_to_utf8(d, ch); |
f146bab6 | 273 | pch = ch; |
1aa99e6b IH |
274 | } |
275 | s += len; | |
276 | continue; | |
277 | } | |
f146bab6 | 278 | else if (sch == -1) { /* -1 is unmapped character */ |
640af7f1 | 279 | Move(s, d, len, U8); |
9b877dbb IH |
280 | d += len; |
281 | } | |
f146bab6 | 282 | else if (sch == -2) /* -2 is delete character */ |
1aa99e6b IH |
283 | matches++; |
284 | s += len; | |
285 | pch = 0xfeedface; | |
286 | } | |
5d06d08e | 287 | } |
1aa99e6b IH |
288 | else { |
289 | while (s < send) { | |
290 | STRLEN len; | |
9f7f3913 TS |
291 | const UV comp = utf8n_to_uvchr(s, send - s, &len, |
292 | UTF8_ALLOW_DEFAULT); | |
f146bab6 DM |
293 | UV ch; |
294 | short sch; | |
8973db79 JH |
295 | if (comp > 0xff) { |
296 | if (!complement) { | |
0376ff32 | 297 | Move(s, d, len, U8); |
8973db79 JH |
298 | d += len; |
299 | } | |
300 | else { | |
334c6444 | 301 | /* use the implicit 0x100..0x7fffffff search range */ |
8973db79 | 302 | matches++; |
f146bab6 DM |
303 | if (del) { |
304 | if (excess >= (IV)comp - 0xff) { | |
305 | ch = (UV)tbl[comp+2]; | |
306 | d = uvchr_to_utf8(d, ch); | |
307 | } | |
308 | } | |
309 | else { | |
ea088e55 DM |
310 | /* tr/...//c should call S_do_trans_count |
311 | * instead */ | |
312 | assert(excess != -1); | |
f146bab6 DM |
313 | ch = (UV)( excess == 0 |
314 | || excess < (IV)comp-0xff) ? tbl[0x101] | |
315 | : tbl[comp+2]; | |
ea088e55 | 316 | d = uvchr_to_utf8(d, ch); |
f146bab6 | 317 | } |
8973db79 | 318 | } |
9b877dbb | 319 | } |
f146bab6 DM |
320 | else if ((sch = tbl[comp]) >= 0) { |
321 | d = uvchr_to_utf8(d, (UV)sch); | |
1aa99e6b IH |
322 | matches++; |
323 | } | |
f146bab6 | 324 | else if (sch == -1) { /* -1 is unmapped character */ |
640af7f1 | 325 | Move(s, d, len, U8); |
9b877dbb | 326 | d += len; |
1aa99e6b | 327 | } |
f146bab6 | 328 | else if (sch == -2) /* -2 is delete character */ |
1aa99e6b IH |
329 | matches++; |
330 | s += len; | |
331 | } | |
332 | } | |
9b877dbb IH |
333 | if (grows) { |
334 | sv_setpvn(sv, (char*)dstart, d - dstart); | |
335 | Safefree(dstart); | |
336 | } | |
337 | else { | |
338 | *d = '\0'; | |
339 | SvCUR_set(sv, d - dstart); | |
340 | } | |
1aa99e6b | 341 | SvUTF8_on(sv); |
4757a243 | 342 | } |
5e44153e | 343 | SvSETMAGIC(sv); |
4757a243 LW |
344 | return matches; |
345 | } | |
346 | ||
334c6444 DM |
347 | |
348 | /* Helper function for do_trans(). | |
349 | * Handles utf8 cases(*) not involving the /c, /d, /s flags, | |
350 | * and where search and replacement charlists aren't identical. | |
351 | * (*) i.e. where the search or replacement charlists are utf8. sv may | |
352 | * or may not be utf8. | |
353 | */ | |
354 | ||
942e002e | 355 | STATIC I32 |
c395bd6c | 356 | S_do_trans_simple_utf8(pTHX_ SV * const sv) |
4757a243 | 357 | { |
4757a243 LW |
358 | U8 *s; |
359 | U8 *send; | |
360 | U8 *d; | |
036b4402 | 361 | U8 *start; |
1aa99e6b | 362 | U8 *dstart, *dend; |
4757a243 | 363 | I32 matches = 0; |
f54cb97a | 364 | const I32 grows = PL_op->op_private & OPpTRANS_GROWS; |
4757a243 | 365 | STRLEN len; |
043e41b8 DM |
366 | SV* const rv = |
367 | #ifdef USE_ITHREADS | |
368 | PAD_SVl(cPADOP->op_padix); | |
369 | #else | |
ad64d0ec | 370 | MUTABLE_SV(cSVOP->op_sv); |
043e41b8 | 371 | #endif |
85fbaab2 | 372 | HV* const hv = MUTABLE_HV(SvRV(rv)); |
a4fc7abc | 373 | SV* const * svp = hv_fetchs(hv, "NONE", FALSE); |
f54cb97a AL |
374 | const UV none = svp ? SvUV(*svp) : 0x7fffffff; |
375 | const UV extra = none + 1; | |
b7953727 | 376 | UV final = 0; |
1aa99e6b | 377 | U8 hibit = 0; |
4757a243 | 378 | |
7918f24d NC |
379 | PERL_ARGS_ASSERT_DO_TRANS_SIMPLE_UTF8; |
380 | ||
9138d6ca | 381 | s = (U8*)SvPV_nomg(sv, len); |
c395bd6c | 382 | if (!SvUTF8(sv)) { |
40b85b80 KW |
383 | hibit = ! is_utf8_invariant_string(s, len); |
384 | if (hibit) { | |
385 | s = bytes_to_utf8(s, &len); | |
c4d5f83a | 386 | } |
1aa99e6b | 387 | } |
4757a243 | 388 | send = s + len; |
036b4402 | 389 | start = s; |
4757a243 | 390 | |
a4fc7abc | 391 | svp = hv_fetchs(hv, "FINAL", FALSE); |
4757a243 LW |
392 | if (svp) |
393 | final = SvUV(*svp); | |
394 | ||
9b877dbb IH |
395 | if (grows) { |
396 | /* d needs to be bigger than s, in case e.g. upgrading is required */ | |
a02a5408 | 397 | Newx(d, len * 3 + UTF8_MAXBYTES, U8); |
9b877dbb IH |
398 | dend = d + len * 3; |
399 | dstart = d; | |
400 | } | |
401 | else { | |
402 | dstart = d = s; | |
403 | dend = d + len; | |
404 | } | |
1aa99e6b | 405 | |
4757a243 | 406 | while (s < send) { |
0bcc34c2 AL |
407 | const UV uv = swash_fetch(rv, s, TRUE); |
408 | if (uv < none) { | |
4757a243 LW |
409 | s += UTF8SKIP(s); |
410 | matches++; | |
c80e42f3 | 411 | d = uvchr_to_utf8(d, uv); |
4757a243 LW |
412 | } |
413 | else if (uv == none) { | |
4373e329 | 414 | const int i = UTF8SKIP(s); |
0376ff32 | 415 | Move(s, d, i, U8); |
9b877dbb IH |
416 | d += i; |
417 | s += i; | |
4757a243 LW |
418 | } |
419 | else if (uv == extra) { | |
4373e329 | 420 | s += UTF8SKIP(s); |
4757a243 | 421 | matches++; |
c80e42f3 | 422 | d = uvchr_to_utf8(d, final); |
4757a243 LW |
423 | } |
424 | else | |
425 | s += UTF8SKIP(s); | |
1aa99e6b | 426 | |
9b877dbb | 427 | if (d > dend) { |
4373e329 AL |
428 | const STRLEN clen = d - dstart; |
429 | const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES; | |
9b877dbb | 430 | if (!grows) |
7d85a32c | 431 | Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__); |
89ebb4a3 | 432 | Renew(dstart, nlen + UTF8_MAXBYTES, U8); |
1aa99e6b IH |
433 | d = dstart + clen; |
434 | dend = dstart + nlen; | |
435 | } | |
4757a243 | 436 | } |
16ec844d | 437 | if (grows || hibit) { |
9b877dbb IH |
438 | sv_setpvn(sv, (char*)dstart, d - dstart); |
439 | Safefree(dstart); | |
16ec844d IH |
440 | if (grows && hibit) |
441 | Safefree(start); | |
9b877dbb IH |
442 | } |
443 | else { | |
444 | *d = '\0'; | |
445 | SvCUR_set(sv, d - dstart); | |
446 | } | |
4757a243 | 447 | SvSETMAGIC(sv); |
1aa99e6b | 448 | SvUTF8_on(sv); |
4757a243 LW |
449 | |
450 | return matches; | |
451 | } | |
452 | ||
334c6444 DM |
453 | |
454 | /* Helper function for do_trans(). | |
455 | * Handles utf8 cases(*) where search and replacement charlists are | |
456 | * identical: so the string isn't modified, and only a count of modifiable | |
457 | * chars is needed. | |
458 | * Note that it doesn't handle /d or /s, since these modify the string | |
459 | * even if the replacement charlist is empty. | |
460 | * (*) i.e. where the search or replacement charlists are utf8. sv may | |
461 | * or may not be utf8. | |
462 | */ | |
463 | ||
942e002e | 464 | STATIC I32 |
c395bd6c | 465 | S_do_trans_count_utf8(pTHX_ SV * const sv) |
4757a243 | 466 | { |
93524f2b | 467 | const U8 *s; |
cbbf8932 AL |
468 | const U8 *start = NULL; |
469 | const U8 *send; | |
4757a243 LW |
470 | I32 matches = 0; |
471 | STRLEN len; | |
043e41b8 DM |
472 | SV* const rv = |
473 | #ifdef USE_ITHREADS | |
474 | PAD_SVl(cPADOP->op_padix); | |
475 | #else | |
ad64d0ec | 476 | MUTABLE_SV(cSVOP->op_sv); |
043e41b8 | 477 | #endif |
85fbaab2 | 478 | HV* const hv = MUTABLE_HV(SvRV(rv)); |
a4fc7abc | 479 | SV* const * const svp = hv_fetchs(hv, "NONE", FALSE); |
f54cb97a AL |
480 | const UV none = svp ? SvUV(*svp) : 0x7fffffff; |
481 | const UV extra = none + 1; | |
1aa99e6b | 482 | U8 hibit = 0; |
4757a243 | 483 | |
7918f24d NC |
484 | PERL_ARGS_ASSERT_DO_TRANS_COUNT_UTF8; |
485 | ||
9138d6ca | 486 | s = (const U8*)SvPV_nomg_const(sv, len); |
1aa99e6b | 487 | if (!SvUTF8(sv)) { |
40b85b80 KW |
488 | hibit = ! is_utf8_invariant_string(s, len); |
489 | if (hibit) { | |
490 | start = s = bytes_to_utf8(s, &len); | |
c4d5f83a | 491 | } |
1aa99e6b | 492 | } |
4757a243 LW |
493 | send = s + len; |
494 | ||
495 | while (s < send) { | |
c4420975 AL |
496 | const UV uv = swash_fetch(rv, s, TRUE); |
497 | if (uv < none || uv == extra) | |
4757a243 | 498 | matches++; |
834a4ddd | 499 | s += UTF8SKIP(s); |
4757a243 | 500 | } |
1aa99e6b IH |
501 | if (hibit) |
502 | Safefree(start); | |
4757a243 LW |
503 | |
504 | return matches; | |
505 | } | |
506 | ||
334c6444 DM |
507 | |
508 | /* Helper function for do_trans(). | |
509 | * Handles utf8 cases(*) involving the /c, /d, /s flags, | |
510 | * and where search and replacement charlists aren't identical. | |
511 | * (*) i.e. where the search or replacement charlists are utf8. sv may | |
512 | * or may not be utf8. | |
513 | */ | |
514 | ||
942e002e | 515 | STATIC I32 |
c395bd6c | 516 | S_do_trans_complex_utf8(pTHX_ SV * const sv) |
4757a243 | 517 | { |
1aa99e6b | 518 | U8 *start, *send; |
4757a243 LW |
519 | U8 *d; |
520 | I32 matches = 0; | |
4373e329 AL |
521 | const I32 squash = PL_op->op_private & OPpTRANS_SQUASH; |
522 | const I32 del = PL_op->op_private & OPpTRANS_DELETE; | |
523 | const I32 grows = PL_op->op_private & OPpTRANS_GROWS; | |
043e41b8 DM |
524 | SV* const rv = |
525 | #ifdef USE_ITHREADS | |
526 | PAD_SVl(cPADOP->op_padix); | |
527 | #else | |
ad64d0ec | 528 | MUTABLE_SV(cSVOP->op_sv); |
043e41b8 | 529 | #endif |
85fbaab2 | 530 | HV * const hv = MUTABLE_HV(SvRV(rv)); |
a4fc7abc | 531 | SV * const *svp = hv_fetchs(hv, "NONE", FALSE); |
f54cb97a AL |
532 | const UV none = svp ? SvUV(*svp) : 0x7fffffff; |
533 | const UV extra = none + 1; | |
b7953727 | 534 | UV final = 0; |
45005bfb | 535 | bool havefinal = FALSE; |
4757a243 | 536 | STRLEN len; |
1aa99e6b | 537 | U8 *dstart, *dend; |
1aa99e6b | 538 | U8 hibit = 0; |
9138d6ca | 539 | U8 *s = (U8*)SvPV_nomg(sv, len); |
7918f24d NC |
540 | |
541 | PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8; | |
542 | ||
c395bd6c | 543 | if (!SvUTF8(sv)) { |
40b85b80 KW |
544 | hibit = ! is_utf8_invariant_string(s, len); |
545 | if (hibit) { | |
546 | s = bytes_to_utf8(s, &len); | |
c4d5f83a | 547 | } |
1aa99e6b | 548 | } |
4757a243 | 549 | send = s + len; |
1aa99e6b | 550 | start = s; |
4757a243 | 551 | |
a4fc7abc | 552 | svp = hv_fetchs(hv, "FINAL", FALSE); |
45005bfb | 553 | if (svp) { |
4757a243 | 554 | final = SvUV(*svp); |
45005bfb JH |
555 | havefinal = TRUE; |
556 | } | |
4757a243 | 557 | |
9b877dbb IH |
558 | if (grows) { |
559 | /* d needs to be bigger than s, in case e.g. upgrading is required */ | |
a02a5408 | 560 | Newx(d, len * 3 + UTF8_MAXBYTES, U8); |
9b877dbb IH |
561 | dend = d + len * 3; |
562 | dstart = d; | |
563 | } | |
564 | else { | |
565 | dstart = d = s; | |
566 | dend = d + len; | |
567 | } | |
4757a243 LW |
568 | |
569 | if (squash) { | |
570 | UV puv = 0xfeedface; | |
571 | while (s < send) { | |
f54cb97a | 572 | UV uv = swash_fetch(rv, s, TRUE); |
9041c2e3 | 573 | |
9b877dbb | 574 | if (d > dend) { |
4373e329 AL |
575 | const STRLEN clen = d - dstart; |
576 | const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES; | |
9b877dbb | 577 | if (!grows) |
7d85a32c | 578 | Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__); |
89ebb4a3 | 579 | Renew(dstart, nlen + UTF8_MAXBYTES, U8); |
1aa99e6b IH |
580 | d = dstart + clen; |
581 | dend = dstart + nlen; | |
4757a243 LW |
582 | } |
583 | if (uv < none) { | |
584 | matches++; | |
94472101 | 585 | s += UTF8SKIP(s); |
4757a243 | 586 | if (uv != puv) { |
c80e42f3 | 587 | d = uvchr_to_utf8(d, uv); |
4757a243 LW |
588 | puv = uv; |
589 | } | |
4757a243 LW |
590 | continue; |
591 | } | |
592 | else if (uv == none) { /* "none" is unmapped character */ | |
4373e329 | 593 | const int i = UTF8SKIP(s); |
0376ff32 | 594 | Move(s, d, i, U8); |
9b877dbb IH |
595 | d += i; |
596 | s += i; | |
4757a243 LW |
597 | puv = 0xfeedface; |
598 | continue; | |
a0ed51b3 | 599 | } |
4757a243 LW |
600 | else if (uv == extra && !del) { |
601 | matches++; | |
45005bfb JH |
602 | if (havefinal) { |
603 | s += UTF8SKIP(s); | |
604 | if (puv != final) { | |
c80e42f3 | 605 | d = uvchr_to_utf8(d, final); |
45005bfb JH |
606 | puv = final; |
607 | } | |
608 | } | |
609 | else { | |
610 | STRLEN len; | |
c80e42f3 | 611 | uv = utf8n_to_uvchr(s, send - s, &len, UTF8_ALLOW_DEFAULT); |
45005bfb | 612 | if (uv != puv) { |
0376ff32 | 613 | Move(s, d, len, U8); |
45005bfb JH |
614 | d += len; |
615 | puv = uv; | |
616 | } | |
617 | s += len; | |
4757a243 | 618 | } |
4757a243 LW |
619 | continue; |
620 | } | |
01ec43d0 GS |
621 | matches++; /* "none+1" is delete character */ |
622 | s += UTF8SKIP(s); | |
a0ed51b3 | 623 | } |
79072805 LW |
624 | } |
625 | else { | |
4757a243 | 626 | while (s < send) { |
f54cb97a | 627 | const UV uv = swash_fetch(rv, s, TRUE); |
9b877dbb | 628 | if (d > dend) { |
f54cb97a AL |
629 | const STRLEN clen = d - dstart; |
630 | const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES; | |
9b877dbb | 631 | if (!grows) |
7d85a32c | 632 | Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__); |
89ebb4a3 | 633 | Renew(dstart, nlen + UTF8_MAXBYTES, U8); |
1aa99e6b IH |
634 | d = dstart + clen; |
635 | dend = dstart + nlen; | |
a0ed51b3 | 636 | } |
4757a243 LW |
637 | if (uv < none) { |
638 | matches++; | |
01ec43d0 | 639 | s += UTF8SKIP(s); |
c80e42f3 | 640 | d = uvchr_to_utf8(d, uv); |
4757a243 | 641 | continue; |
a0ed51b3 | 642 | } |
4757a243 | 643 | else if (uv == none) { /* "none" is unmapped character */ |
f54cb97a | 644 | const int i = UTF8SKIP(s); |
0376ff32 | 645 | Move(s, d, i, U8); |
9b877dbb IH |
646 | d += i; |
647 | s += i; | |
4757a243 | 648 | continue; |
79072805 | 649 | } |
4757a243 LW |
650 | else if (uv == extra && !del) { |
651 | matches++; | |
01ec43d0 | 652 | s += UTF8SKIP(s); |
c80e42f3 | 653 | d = uvchr_to_utf8(d, final); |
4757a243 LW |
654 | continue; |
655 | } | |
01ec43d0 GS |
656 | matches++; /* "none+1" is delete character */ |
657 | s += UTF8SKIP(s); | |
79072805 | 658 | } |
4757a243 | 659 | } |
16ec844d | 660 | if (grows || hibit) { |
9b877dbb IH |
661 | sv_setpvn(sv, (char*)dstart, d - dstart); |
662 | Safefree(dstart); | |
16ec844d IH |
663 | if (grows && hibit) |
664 | Safefree(start); | |
9b877dbb IH |
665 | } |
666 | else { | |
667 | *d = '\0'; | |
668 | SvCUR_set(sv, d - dstart); | |
669 | } | |
1aa99e6b | 670 | SvUTF8_on(sv); |
4757a243 LW |
671 | SvSETMAGIC(sv); |
672 | ||
673 | return matches; | |
674 | } | |
675 | ||
334c6444 DM |
676 | |
677 | /* Execute a tr//. sv is the value to be translated, while PL_op | |
678 | * should be an OP_TRANS or OP_TRANSR op, whose op_pv field contains a | |
679 | * translation table or whose op_sv field contains a swash. | |
680 | * Returns a count of number of characters translated | |
681 | */ | |
682 | ||
4757a243 | 683 | I32 |
864dbfa3 | 684 | Perl_do_trans(pTHX_ SV *sv) |
4757a243 LW |
685 | { |
686 | STRLEN len; | |
a53bfdae HS |
687 | const I32 flags = PL_op->op_private; |
688 | const I32 hasutf = flags & (OPpTRANS_FROM_UTF | OPpTRANS_TO_UTF); | |
4757a243 | 689 | |
7918f24d NC |
690 | PERL_ARGS_ASSERT_DO_TRANS; |
691 | ||
a53bfdae HS |
692 | if (SvREADONLY(sv) && !(flags & OPpTRANS_IDENTICAL)) { |
693 | Perl_croak_no_modify(); | |
2233f375 | 694 | } |
10516c54 | 695 | (void)SvPV_const(sv, len); |
4757a243 LW |
696 | if (!len) |
697 | return 0; | |
a53bfdae | 698 | if (!(flags & OPpTRANS_IDENTICAL)) { |
4499db73 | 699 | if (!SvPOKp(sv) || SvTHINKFIRST(sv)) |
b4cc4d79 | 700 | (void)SvPV_force_nomg(sv, len); |
2de7b02f | 701 | (void)SvPOK_only_UTF8(sv); |
d59e14db | 702 | } |
4757a243 | 703 | |
a53bfdae HS |
704 | /* If we use only OPpTRANS_IDENTICAL to bypass the READONLY check, |
705 | * we must also rely on it to choose the readonly strategy. | |
706 | */ | |
707 | if (flags & OPpTRANS_IDENTICAL) { | |
708 | return hasutf ? do_trans_count_utf8(sv) : do_trans_count(sv); | |
709 | } else if (flags & (OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) { | |
710 | return hasutf ? do_trans_complex_utf8(sv) : do_trans_complex(sv); | |
711 | } else { | |
712 | return hasutf ? do_trans_simple_utf8(sv) : do_trans_simple(sv); | |
79072805 | 713 | } |
79072805 LW |
714 | } |
715 | ||
716 | void | |
5aaab254 | 717 | Perl_do_join(pTHX_ SV *sv, SV *delim, SV **mark, SV **sp) |
79072805 | 718 | { |
53c1dcc0 | 719 | SV ** const oldmark = mark; |
eb578fdb KW |
720 | I32 items = sp - mark; |
721 | STRLEN len; | |
463ee0b2 | 722 | STRLEN delimlen; |
810a07df | 723 | const char * const delims = SvPV_const(delim, delimlen); |
79072805 | 724 | |
7918f24d NC |
725 | PERL_ARGS_ASSERT_DO_JOIN; |
726 | ||
79072805 LW |
727 | mark++; |
728 | len = (items > 0 ? (delimlen * (items - 1) ) : 0); | |
862a34c6 | 729 | SvUPGRADE(sv, SVt_PV); |
79072805 LW |
730 | if (SvLEN(sv) < len + items) { /* current length is way too short */ |
731 | while (items-- > 0) { | |
1426bbf4 | 732 | if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) { |
f54cb97a | 733 | STRLEN tmplen; |
5c144d81 | 734 | SvPV_const(*mark, tmplen); |
463ee0b2 | 735 | len += tmplen; |
79072805 LW |
736 | } |
737 | mark++; | |
738 | } | |
739 | SvGROW(sv, len + 1); /* so try to pre-extend */ | |
740 | ||
741 | mark = oldmark; | |
db7c17d7 | 742 | items = sp - mark; |
79072805 LW |
743 | ++mark; |
744 | } | |
745 | ||
f607343f | 746 | SvPVCLEAR(sv); |
e4803c42 | 747 | /* sv_setpv retains old UTF8ness [perl #24846] */ |
fb622db0 | 748 | SvUTF8_off(sv); |
e4803c42 | 749 | |
284167a5 | 750 | if (TAINTING_get && SvMAGICAL(sv)) |
8d6d96c1 HS |
751 | SvTAINTED_off(sv); |
752 | ||
463ee0b2 | 753 | if (items-- > 0) { |
92d29cee JH |
754 | if (*mark) |
755 | sv_catsv(sv, *mark); | |
463ee0b2 LW |
756 | mark++; |
757 | } | |
8d6d96c1 | 758 | |
c512ce4f | 759 | if (delimlen) { |
810a07df | 760 | const U32 delimflag = DO_UTF8(delim) ? SV_CATUTF8 : SV_CATBYTES; |
79072805 | 761 | for (; items > 0; items--,mark++) { |
f0ee3863 FC |
762 | STRLEN len; |
763 | const char *s; | |
810a07df | 764 | sv_catpvn_flags(sv,delims,delimlen,delimflag); |
f0ee3863 FC |
765 | s = SvPV_const(*mark,len); |
766 | sv_catpvn_flags(sv,s,len, | |
767 | DO_UTF8(*mark) ? SV_CATUTF8 : SV_CATBYTES); | |
79072805 LW |
768 | } |
769 | } | |
770 | else { | |
771 | for (; items > 0; items--,mark++) | |
f0ee3863 FC |
772 | { |
773 | STRLEN len; | |
774 | const char *s = SvPV_const(*mark,len); | |
775 | sv_catpvn_flags(sv,s,len, | |
776 | DO_UTF8(*mark) ? SV_CATUTF8 : SV_CATBYTES); | |
777 | } | |
79072805 LW |
778 | } |
779 | SvSETMAGIC(sv); | |
780 | } | |
781 | ||
782 | void | |
03a22d83 | 783 | Perl_do_sprintf(pTHX_ SV *sv, SSize_t len, SV **sarg) |
79072805 | 784 | { |
46fc3d4c | 785 | STRLEN patlen; |
53c1dcc0 | 786 | const char * const pat = SvPV_const(*sarg, patlen); |
46fc3d4c | 787 | bool do_taint = FALSE; |
788 | ||
7918f24d | 789 | PERL_ARGS_ASSERT_DO_SPRINTF; |
03a22d83 | 790 | assert(len >= 1); |
7918f24d | 791 | |
e06d98fb DM |
792 | if (SvTAINTED(*sarg)) |
793 | TAINT_PROPER( | |
794 | (PL_op && PL_op->op_type < OP_max) | |
795 | ? (PL_op->op_type == OP_PRTF) | |
796 | ? "printf" | |
797 | : PL_op_name[PL_op->op_type] | |
798 | : "(unknown)" | |
799 | ); | |
5b781b5b | 800 | SvUTF8_off(sv); |
2cf2cfc6 A |
801 | if (DO_UTF8(*sarg)) |
802 | SvUTF8_on(sv); | |
03a22d83 | 803 | sv_vsetpvfn(sv, pat, patlen, NULL, sarg + 1, (Size_t)(len - 1), &do_taint); |
79072805 | 804 | SvSETMAGIC(sv); |
46fc3d4c | 805 | if (do_taint) |
806 | SvTAINTED_on(sv); | |
79072805 LW |
807 | } |
808 | ||
33b45480 | 809 | /* currently converts input to bytes if possible, but doesn't sweat failure */ |
81e118e0 | 810 | UV |
d69c4304 | 811 | Perl_do_vecget(pTHX_ SV *sv, STRLEN offset, int size) |
81e118e0 | 812 | { |
67dd6f35 | 813 | STRLEN srclen, len, avail, uoffset, bitoffs = 0; |
fc9668ae DM |
814 | const I32 svpv_flags = ((PL_op->op_flags & OPf_MOD || LVRET) |
815 | ? SV_UNDEF_RETURNS_NULL : 0); | |
816 | unsigned char *s = (unsigned char *) | |
817 | SvPV_flags(sv, srclen, (svpv_flags|SV_GMAGIC)); | |
81e118e0 JH |
818 | UV retnum = 0; |
819 | ||
032061d2 | 820 | if (!s) { |
fc9668ae | 821 | s = (unsigned char *)""; |
032061d2 BF |
822 | } |
823 | ||
7918f24d NC |
824 | PERL_ARGS_ASSERT_DO_VECGET; |
825 | ||
8e84507e | 826 | if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
a50d7633 | 827 | Perl_croak(aTHX_ "Illegal number of bits in vec"); |
246fae53 | 828 | |
fc9668ae | 829 | if (SvUTF8(sv)) { |
315f3fc1 KW |
830 | if (Perl_sv_utf8_downgrade(aTHX_ sv, TRUE)) { |
831 | /* PVX may have changed */ | |
832 | s = (unsigned char *) SvPV_flags(sv, srclen, svpv_flags); | |
833 | } | |
834 | else { | |
835 | Perl_ck_warner_d(aTHX_ packWARN(WARN_DEPRECATED), | |
836 | "Use of strings with code points over 0xFF as" | |
837 | " arguments to vec is deprecated. This will" | |
838 | " be a fatal error in Perl 5.32"); | |
839 | } | |
fc9668ae | 840 | } |
246fae53 | 841 | |
bbb8a7e0 MHM |
842 | if (size < 8) { |
843 | bitoffs = ((offset%8)*size)%8; | |
844 | uoffset = offset/(8/size); | |
845 | } | |
67dd6f35 DM |
846 | else if (size > 8) { |
847 | int n = size/8; | |
848 | if (offset > Size_t_MAX / n - 1) /* would overflow */ | |
849 | return 0; | |
850 | uoffset = offset*n; | |
851 | } | |
bbb8a7e0 MHM |
852 | else |
853 | uoffset = offset; | |
854 | ||
67dd6f35 DM |
855 | if (uoffset >= srclen) |
856 | return 0; | |
857 | ||
858 | len = (bitoffs + size + 7)/8; /* required number of bytes */ | |
859 | avail = srclen - uoffset; /* available number of bytes */ | |
860 | ||
861 | /* Does the byte range overlap the end of the string? If so, | |
862 | * handle specially. */ | |
863 | if (avail < len) { | |
81e118e0 JH |
864 | if (size <= 8) |
865 | retnum = 0; | |
866 | else { | |
81e118e0 | 867 | if (size == 16) { |
67dd6f35 DM |
868 | assert(avail == 1); |
869 | retnum = (UV) s[uoffset] << 8; | |
81e118e0 JH |
870 | } |
871 | else if (size == 32) { | |
67dd6f35 DM |
872 | assert(avail >= 1 && avail <= 3); |
873 | if (avail == 1) | |
81e118e0 | 874 | retnum = |
bb7a0f54 | 875 | ((UV) s[uoffset ] << 24); |
67dd6f35 | 876 | else if (avail == 2) |
81e118e0 | 877 | retnum = |
bb7a0f54 MHM |
878 | ((UV) s[uoffset ] << 24) + |
879 | ((UV) s[uoffset + 1] << 16); | |
81e118e0 JH |
880 | else |
881 | retnum = | |
bb7a0f54 MHM |
882 | ((UV) s[uoffset ] << 24) + |
883 | ((UV) s[uoffset + 1] << 16) + | |
884 | ( s[uoffset + 2] << 8); | |
81e118e0 | 885 | } |
d7d93a81 | 886 | #ifdef UV_IS_QUAD |
c5a0f51a | 887 | else if (size == 64) { |
a2a5de95 NC |
888 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), |
889 | "Bit vector size > 32 non-portable"); | |
67dd6f35 DM |
890 | assert(avail >= 1 && avail <= 7); |
891 | if (avail == 1) | |
c5a0f51a | 892 | retnum = |
bb7a0f54 | 893 | (UV) s[uoffset ] << 56; |
67dd6f35 | 894 | else if (avail == 2) |
c5a0f51a | 895 | retnum = |
bb7a0f54 MHM |
896 | ((UV) s[uoffset ] << 56) + |
897 | ((UV) s[uoffset + 1] << 48); | |
67dd6f35 | 898 | else if (avail == 3) |
c5a0f51a | 899 | retnum = |
bb7a0f54 MHM |
900 | ((UV) s[uoffset ] << 56) + |
901 | ((UV) s[uoffset + 1] << 48) + | |
902 | ((UV) s[uoffset + 2] << 40); | |
67dd6f35 | 903 | else if (avail == 4) |
c5a0f51a | 904 | retnum = |
bb7a0f54 MHM |
905 | ((UV) s[uoffset ] << 56) + |
906 | ((UV) s[uoffset + 1] << 48) + | |
907 | ((UV) s[uoffset + 2] << 40) + | |
908 | ((UV) s[uoffset + 3] << 32); | |
67dd6f35 | 909 | else if (avail == 5) |
c5a0f51a | 910 | retnum = |
bb7a0f54 MHM |
911 | ((UV) s[uoffset ] << 56) + |
912 | ((UV) s[uoffset + 1] << 48) + | |
913 | ((UV) s[uoffset + 2] << 40) + | |
914 | ((UV) s[uoffset + 3] << 32) + | |
e7aca353 | 915 | ((UV) s[uoffset + 4] << 24); |
67dd6f35 | 916 | else if (avail == 6) |
c5a0f51a | 917 | retnum = |
bb7a0f54 MHM |
918 | ((UV) s[uoffset ] << 56) + |
919 | ((UV) s[uoffset + 1] << 48) + | |
920 | ((UV) s[uoffset + 2] << 40) + | |
921 | ((UV) s[uoffset + 3] << 32) + | |
922 | ((UV) s[uoffset + 4] << 24) + | |
923 | ((UV) s[uoffset + 5] << 16); | |
c5a0f51a | 924 | else |
8e84507e | 925 | retnum = |
bb7a0f54 MHM |
926 | ((UV) s[uoffset ] << 56) + |
927 | ((UV) s[uoffset + 1] << 48) + | |
928 | ((UV) s[uoffset + 2] << 40) + | |
929 | ((UV) s[uoffset + 3] << 32) + | |
930 | ((UV) s[uoffset + 4] << 24) + | |
931 | ((UV) s[uoffset + 5] << 16) + | |
e7aca353 | 932 | ((UV) s[uoffset + 6] << 8); |
c5a0f51a JH |
933 | } |
934 | #endif | |
81e118e0 JH |
935 | } |
936 | } | |
937 | else if (size < 8) | |
bbb8a7e0 | 938 | retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1); |
81e118e0 | 939 | else { |
81e118e0 | 940 | if (size == 8) |
bb7a0f54 | 941 | retnum = s[uoffset]; |
81e118e0 JH |
942 | else if (size == 16) |
943 | retnum = | |
bb7a0f54 MHM |
944 | ((UV) s[uoffset] << 8) + |
945 | s[uoffset + 1]; | |
81e118e0 JH |
946 | else if (size == 32) |
947 | retnum = | |
bb7a0f54 MHM |
948 | ((UV) s[uoffset ] << 24) + |
949 | ((UV) s[uoffset + 1] << 16) + | |
950 | ( s[uoffset + 2] << 8) + | |
951 | s[uoffset + 3]; | |
d7d93a81 | 952 | #ifdef UV_IS_QUAD |
c5a0f51a | 953 | else if (size == 64) { |
a2a5de95 NC |
954 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), |
955 | "Bit vector size > 32 non-portable"); | |
c5a0f51a | 956 | retnum = |
bb7a0f54 MHM |
957 | ((UV) s[uoffset ] << 56) + |
958 | ((UV) s[uoffset + 1] << 48) + | |
959 | ((UV) s[uoffset + 2] << 40) + | |
960 | ((UV) s[uoffset + 3] << 32) + | |
961 | ((UV) s[uoffset + 4] << 24) + | |
962 | ((UV) s[uoffset + 5] << 16) + | |
963 | ( s[uoffset + 6] << 8) + | |
964 | s[uoffset + 7]; | |
c5a0f51a JH |
965 | } |
966 | #endif | |
81e118e0 JH |
967 | } |
968 | ||
969 | return retnum; | |
970 | } | |
971 | ||
33b45480 SB |
972 | /* currently converts input to bytes if possible but doesn't sweat failures, |
973 | * although it does ensure that the string it clobbers is not marked as | |
974 | * utf8-valid any more | |
975 | */ | |
79072805 | 976 | void |
864dbfa3 | 977 | Perl_do_vecset(pTHX_ SV *sv) |
79072805 | 978 | { |
67dd6f35 | 979 | STRLEN offset, bitoffs = 0; |
eb578fdb KW |
980 | int size; |
981 | unsigned char *s; | |
982 | UV lval; | |
79072805 | 983 | I32 mask; |
a0d0e21e LW |
984 | STRLEN targlen; |
985 | STRLEN len; | |
c4420975 | 986 | SV * const targ = LvTARG(sv); |
1b92e694 | 987 | char errflags = LvFLAGS(sv); |
79072805 | 988 | |
7918f24d NC |
989 | PERL_ARGS_ASSERT_DO_VECSET; |
990 | ||
1b92e694 DM |
991 | /* some out-of-range errors have been deferred if/until the LV is |
992 | * actually written to: f(vec($s,-1,8)) is not always fatal */ | |
993 | if (errflags) { | |
b063b0a8 DIM |
994 | assert(!(errflags & ~(LVf_NEG_OFF|LVf_OUT_OF_RANGE))); |
995 | if (errflags & LVf_NEG_OFF) | |
1b92e694 DM |
996 | Perl_croak_nocontext("Negative offset to vec in lvalue context"); |
997 | Perl_croak_nocontext("Out of memory!"); | |
998 | } | |
999 | ||
8990e307 LW |
1000 | if (!targ) |
1001 | return; | |
032061d2 BF |
1002 | s = (unsigned char*)SvPV_force_flags(targ, targlen, |
1003 | SV_GMAGIC | SV_UNDEF_RETURNS_NULL); | |
246fae53 | 1004 | if (SvUTF8(targ)) { |
33b45480 SB |
1005 | /* This is handled by the SvPOK_only below... |
1006 | if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE)) | |
1007 | SvUTF8_off(targ); | |
1008 | */ | |
1009 | (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE); | |
246fae53 MG |
1010 | } |
1011 | ||
4ebbc975 | 1012 | (void)SvPOK_only(targ); |
81e118e0 | 1013 | lval = SvUV(sv); |
79072805 LW |
1014 | offset = LvTARGOFF(sv); |
1015 | size = LvTARGLEN(sv); | |
67dd6f35 | 1016 | |
8e84507e | 1017 | if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
a50d7633 | 1018 | Perl_croak(aTHX_ "Illegal number of bits in vec"); |
8e84507e | 1019 | |
bbb8a7e0 MHM |
1020 | if (size < 8) { |
1021 | bitoffs = ((offset%8)*size)%8; | |
1022 | offset /= 8/size; | |
1023 | } | |
67dd6f35 DM |
1024 | else if (size > 8) { |
1025 | int n = size/8; | |
1026 | if (offset > Size_t_MAX / n - 1) /* would overflow */ | |
1027 | Perl_croak_nocontext("Out of memory!"); | |
1028 | offset *= n; | |
1029 | } | |
bbb8a7e0 | 1030 | |
67dd6f35 DM |
1031 | len = (bitoffs + size + 7)/8; /* required number of bytes */ |
1032 | if (targlen < offset || targlen - offset < len) { | |
1033 | STRLEN newlen = offset > Size_t_MAX - len - 1 ? /* avoid overflow */ | |
1034 | Size_t_MAX : offset + len + 1; | |
1035 | s = (unsigned char*)SvGROW(targ, newlen); | |
1036 | (void)memzero((char *)(s + targlen), newlen - targlen); | |
1037 | SvCUR_set(targ, newlen - 1); | |
a0d0e21e | 1038 | } |
8e84507e | 1039 | |
79072805 LW |
1040 | if (size < 8) { |
1041 | mask = (1 << size) - 1; | |
79072805 | 1042 | lval &= mask; |
bbb8a7e0 MHM |
1043 | s[offset] &= ~(mask << bitoffs); |
1044 | s[offset] |= lval << bitoffs; | |
79072805 LW |
1045 | } |
1046 | else { | |
1047 | if (size == 8) | |
eb160463 | 1048 | s[offset ] = (U8)( lval & 0xff); |
79072805 | 1049 | else if (size == 16) { |
eb160463 GS |
1050 | s[offset ] = (U8)((lval >> 8) & 0xff); |
1051 | s[offset+1] = (U8)( lval & 0xff); | |
79072805 LW |
1052 | } |
1053 | else if (size == 32) { | |
eb160463 GS |
1054 | s[offset ] = (U8)((lval >> 24) & 0xff); |
1055 | s[offset+1] = (U8)((lval >> 16) & 0xff); | |
1056 | s[offset+2] = (U8)((lval >> 8) & 0xff); | |
1057 | s[offset+3] = (U8)( lval & 0xff); | |
c5a0f51a | 1058 | } |
d7d93a81 | 1059 | #ifdef UV_IS_QUAD |
c5a0f51a | 1060 | else if (size == 64) { |
a2a5de95 NC |
1061 | Perl_ck_warner(aTHX_ packWARN(WARN_PORTABLE), |
1062 | "Bit vector size > 32 non-portable"); | |
eb160463 GS |
1063 | s[offset ] = (U8)((lval >> 56) & 0xff); |
1064 | s[offset+1] = (U8)((lval >> 48) & 0xff); | |
1065 | s[offset+2] = (U8)((lval >> 40) & 0xff); | |
1066 | s[offset+3] = (U8)((lval >> 32) & 0xff); | |
1067 | s[offset+4] = (U8)((lval >> 24) & 0xff); | |
1068 | s[offset+5] = (U8)((lval >> 16) & 0xff); | |
1069 | s[offset+6] = (U8)((lval >> 8) & 0xff); | |
1070 | s[offset+7] = (U8)( lval & 0xff); | |
79072805 | 1071 | } |
dc1e3f56 | 1072 | #endif |
79072805 | 1073 | } |
7bb043c3 | 1074 | SvSETMAGIC(targ); |
79072805 LW |
1075 | } |
1076 | ||
1077 | void | |
864dbfa3 | 1078 | Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) |
79072805 LW |
1079 | { |
1080 | #ifdef LIBERAL | |
eb578fdb KW |
1081 | long *dl; |
1082 | long *ll; | |
1083 | long *rl; | |
79072805 | 1084 | #endif |
eb578fdb | 1085 | char *dc; |
463ee0b2 LW |
1086 | STRLEN leftlen; |
1087 | STRLEN rightlen; | |
eb578fdb KW |
1088 | const char *lc; |
1089 | const char *rc; | |
1090 | STRLEN len; | |
bb7a0f54 | 1091 | STRLEN lensave; |
e62f0680 NC |
1092 | const char *lsave; |
1093 | const char *rsave; | |
bb7a0f54 | 1094 | STRLEN needlen = 0; |
08b6664b | 1095 | bool result_needs_to_be_utf8 = FALSE; |
b50535da KW |
1096 | bool left_utf8 = FALSE; |
1097 | bool right_utf8 = FALSE; | |
1098 | U8 * left_non_downgraded = NULL; | |
1099 | U8 * right_non_downgraded = NULL; | |
1100 | Size_t left_non_downgraded_len = 0; | |
1101 | Size_t right_non_downgraded_len = 0; | |
1102 | char * non_downgraded = NULL; | |
1103 | Size_t non_downgraded_len = 0; | |
0c57e439 | 1104 | |
7918f24d | 1105 | PERL_ARGS_ASSERT_DO_VOP; |
79072805 | 1106 | |
6b349a5c | 1107 | if (sv != left || (optype != OP_BIT_AND && !SvOK(sv))) |
f607343f | 1108 | SvPVCLEAR(sv); /* avoid undef warning on |= and ^= */ |
8c8eee82 | 1109 | if (sv == left) { |
08b6664b | 1110 | lc = SvPV_force_nomg(left, leftlen); |
8c8eee82 BM |
1111 | } |
1112 | else { | |
08b6664b | 1113 | lc = SvPV_nomg_const(left, leftlen); |
8c8eee82 BM |
1114 | SvPV_force_nomg_nolen(sv); |
1115 | } | |
08b6664b | 1116 | rc = SvPV_nomg_const(right, rightlen); |
12abf4f0 | 1117 | |
0e6e7171 | 1118 | /* This needs to come after SvPV to ensure that string overloading has |
12abf4f0 NC |
1119 | fired off. */ |
1120 | ||
08b6664b KW |
1121 | /* Create downgraded temporaries of any UTF-8 encoded operands */ |
1122 | if (DO_UTF8(left)) { | |
b50535da | 1123 | const U8 * save_lc = (U8 *) lc; |
08b6664b | 1124 | |
b50535da | 1125 | left_utf8 = TRUE; |
08b6664b KW |
1126 | result_needs_to_be_utf8 = TRUE; |
1127 | ||
b50535da KW |
1128 | left_non_downgraded_len = leftlen; |
1129 | lc = (char *) bytes_from_utf8_loc((const U8 *) lc, &leftlen, | |
1130 | &left_utf8, | |
1131 | (const U8 **) &left_non_downgraded); | |
1132 | /* Calculate the number of trailing unconvertible bytes. This quantity | |
1133 | * is the original length minus the length of the converted portion. */ | |
1134 | left_non_downgraded_len -= left_non_downgraded - save_lc; | |
1135 | SAVEFREEPV(lc); | |
12abf4f0 | 1136 | } |
08b6664b | 1137 | if (DO_UTF8(right)) { |
b50535da | 1138 | const U8 * save_rc = (U8 *) rc; |
08b6664b | 1139 | |
b50535da | 1140 | right_utf8 = TRUE; |
08b6664b KW |
1141 | result_needs_to_be_utf8 = TRUE; |
1142 | ||
b50535da KW |
1143 | right_non_downgraded_len = rightlen; |
1144 | rc = (char *) bytes_from_utf8_loc((const U8 *) rc, &rightlen, | |
1145 | &right_utf8, | |
1146 | (const U8 **) &right_non_downgraded); | |
1147 | right_non_downgraded_len -= right_non_downgraded - save_rc; | |
1148 | SAVEFREEPV(rc); | |
1149 | } | |
1150 | ||
1151 | /* We set 'len' to the length that the operation actually operates on. The | |
1152 | * dangling part of the longer operand doesn't actually participate in the | |
1153 | * operation. What happens is that we pretend that the shorter operand has | |
1154 | * been extended to the right by enough imaginary zeros to match the length | |
1155 | * of the longer one. But we know in advance the result of the operation | |
1156 | * on zeros without having to do it. In the case of '&', the result is | |
1157 | * zero, and the dangling portion is simply discarded. For '|' and '^', the | |
1158 | * result is the same as the other operand, so the dangling part is just | |
1159 | * appended to the final result, unchanged. We currently accept above-FF | |
1160 | * code points in the dangling portion, as that's how it has long worked, | |
1161 | * and code depends on it staying that way. But it is now fatal for | |
1162 | * above-FF to appear in the portion that does get operated on. Hence, any | |
1163 | * above-FF must come only in the longer operand, and only in its dangling | |
1164 | * portion. That means that at least one of the operands has to be | |
1165 | * entirely non-UTF-8, and the length of that operand has to be before the | |
1166 | * first above-FF in the other */ | |
1167 | if (left_utf8) { | |
1168 | if (right_utf8 || rightlen > leftlen) { | |
08b6664b KW |
1169 | Perl_croak(aTHX_ fatal_above_ff_msg, PL_op_desc[optype]); |
1170 | } | |
b50535da KW |
1171 | len = rightlen; |
1172 | } | |
1173 | else if (right_utf8) { | |
1174 | if (leftlen > rightlen) { | |
1175 | Perl_croak(aTHX_ fatal_above_ff_msg, PL_op_desc[optype]); | |
1176 | } | |
1177 | len = leftlen; | |
1178 | } | |
1179 | else { /* Neither is UTF-8 */ | |
1180 | len = leftlen < rightlen ? leftlen : rightlen; | |
12abf4f0 NC |
1181 | } |
1182 | ||
b50535da | 1183 | lensave = len; |
08b6664b KW |
1184 | lsave = lc; |
1185 | rsave = rc; | |
b50535da | 1186 | |
9fdd7463 JH |
1187 | SvCUR_set(sv, len); |
1188 | (void)SvPOK_only(sv); | |
08b6664b | 1189 | if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { |
2596d9fe | 1190 | dc = SvPV_force_nomg_nolen(sv); |
bb7a0f54 MHM |
1191 | if (SvLEN(sv) < len + 1) { |
1192 | dc = SvGROW(sv, len + 1); | |
ff68c719 | 1193 | (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); |
1194 | } | |
1195 | } | |
1196 | else { | |
bb7a0f54 MHM |
1197 | needlen = optype == OP_BIT_AND |
1198 | ? len : (leftlen > rightlen ? leftlen : rightlen); | |
a02a5408 | 1199 | Newxz(dc, needlen + 1, char); |
aa0a69cb | 1200 | sv_usepvn_flags(sv, dc, needlen, SV_HAS_TRAILING_NUL); |
ff68c719 | 1201 | dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ |
79072805 | 1202 | } |
0c57e439 | 1203 | |
79072805 LW |
1204 | #ifdef LIBERAL |
1205 | if (len >= sizeof(long)*4 && | |
bb7a0f54 MHM |
1206 | !((unsigned long)dc % sizeof(long)) && |
1207 | !((unsigned long)lc % sizeof(long)) && | |
1208 | !((unsigned long)rc % sizeof(long))) /* It's almost always aligned... */ | |
79072805 | 1209 | { |
bb7a0f54 | 1210 | const STRLEN remainder = len % (sizeof(long)*4); |
79072805 LW |
1211 | len /= (sizeof(long)*4); |
1212 | ||
1213 | dl = (long*)dc; | |
1214 | ll = (long*)lc; | |
1215 | rl = (long*)rc; | |
1216 | ||
1217 | switch (optype) { | |
1218 | case OP_BIT_AND: | |
1219 | while (len--) { | |
1220 | *dl++ = *ll++ & *rl++; | |
1221 | *dl++ = *ll++ & *rl++; | |
1222 | *dl++ = *ll++ & *rl++; | |
1223 | *dl++ = *ll++ & *rl++; | |
1224 | } | |
1225 | break; | |
a0d0e21e | 1226 | case OP_BIT_XOR: |
79072805 LW |
1227 | while (len--) { |
1228 | *dl++ = *ll++ ^ *rl++; | |
1229 | *dl++ = *ll++ ^ *rl++; | |
1230 | *dl++ = *ll++ ^ *rl++; | |
1231 | *dl++ = *ll++ ^ *rl++; | |
1232 | } | |
1233 | break; | |
1234 | case OP_BIT_OR: | |
1235 | while (len--) { | |
1236 | *dl++ = *ll++ | *rl++; | |
1237 | *dl++ = *ll++ | *rl++; | |
1238 | *dl++ = *ll++ | *rl++; | |
1239 | *dl++ = *ll++ | *rl++; | |
1240 | } | |
1241 | } | |
1242 | ||
1243 | dc = (char*)dl; | |
1244 | lc = (char*)ll; | |
1245 | rc = (char*)rl; | |
1246 | ||
1247 | len = remainder; | |
1248 | } | |
1249 | #endif | |
27a9d47d KW |
1250 | switch (optype) { |
1251 | case OP_BIT_AND: | |
1252 | while (len--) | |
1253 | *dc++ = *lc++ & *rc++; | |
1254 | *dc = '\0'; | |
1255 | break; | |
1256 | case OP_BIT_XOR: | |
1257 | while (len--) | |
1258 | *dc++ = *lc++ ^ *rc++; | |
1259 | goto mop_up; | |
1260 | case OP_BIT_OR: | |
1261 | while (len--) | |
1262 | *dc++ = *lc++ | *rc++; | |
1263 | mop_up: | |
1264 | len = lensave; | |
1265 | if (rightlen > len) { | |
1266 | if (dc == rc) | |
1267 | SvCUR(sv) = rightlen; | |
1268 | else | |
1269 | sv_catpvn_nomg(sv, rsave + len, rightlen - len); | |
1270 | } | |
1271 | else if (leftlen > len) { | |
1272 | if (dc == lc) | |
1273 | SvCUR(sv) = leftlen; | |
1274 | else | |
1275 | sv_catpvn_nomg(sv, lsave + len, leftlen - len); | |
1276 | } | |
1277 | *SvEND(sv) = '\0'; | |
392582f8 | 1278 | |
b50535da KW |
1279 | /* If there is trailing stuff that couldn't be converted from UTF-8, it |
1280 | * is appended as-is for the ^ and | operators. This preserves | |
1281 | * backwards compatibility */ | |
1282 | if (right_non_downgraded) { | |
1283 | non_downgraded = (char *) right_non_downgraded; | |
1284 | non_downgraded_len = right_non_downgraded_len; | |
1285 | } | |
1286 | else if (left_non_downgraded) { | |
1287 | non_downgraded = (char *) left_non_downgraded; | |
1288 | non_downgraded_len = left_non_downgraded_len; | |
1289 | } | |
1290 | ||
27a9d47d KW |
1291 | break; |
1292 | } | |
08b6664b KW |
1293 | |
1294 | if (result_needs_to_be_utf8) { | |
b50535da KW |
1295 | sv_utf8_upgrade_nomg(sv); |
1296 | ||
1297 | /* Append any trailing UTF-8 as-is. */ | |
1298 | if (non_downgraded) { | |
1299 | sv_catpvn_nomg(sv, non_downgraded, non_downgraded_len); | |
1300 | } | |
79072805 | 1301 | } |
08b6664b | 1302 | |
fb73857a | 1303 | SvTAINT(sv); |
79072805 | 1304 | } |
463ee0b2 | 1305 | |
b1c05ba5 | 1306 | |
a2232057 DM |
1307 | /* Perl_do_kv() may be: |
1308 | * * called directly as the pp function for pp_keys() and pp_values(); | |
a2232057 DM |
1309 | * * It may also be called directly when the op is OP_AVHVSWITCH, to |
1310 | * implement CORE::keys(), CORE::values(). | |
1311 | * | |
1312 | * In all cases it expects an HV on the stack and returns a list of keys, | |
1313 | * values, or key-value pairs, depending on PL_op. | |
1314 | */ | |
b1c05ba5 | 1315 | |
463ee0b2 | 1316 | OP * |
cea2e8a9 | 1317 | Perl_do_kv(pTHX) |
463ee0b2 | 1318 | { |
39644a26 | 1319 | dSP; |
73ff03e8 | 1320 | HV * const keys = MUTABLE_HV(POPs); |
1c23e2bd | 1321 | const U8 gimme = GIMME_V; |
a2232057 | 1322 | |
af3b1cba | 1323 | const I32 dokeys = (PL_op->op_type == OP_KEYS) |
a2232057 | 1324 | || ( PL_op->op_type == OP_AVHVSWITCH |
94184451 DM |
1325 | && (PL_op->op_private & OPpAVHVSWITCH_MASK) |
1326 | + OP_EACH == OP_KEYS); | |
a2232057 | 1327 | |
af3b1cba | 1328 | const I32 dovalues = (PL_op->op_type == OP_VALUES) |
a2232057 | 1329 | || ( PL_op->op_type == OP_AVHVSWITCH |
94184451 DM |
1330 | && (PL_op->op_private & OPpAVHVSWITCH_MASK) |
1331 | + OP_EACH == OP_VALUES); | |
a2232057 | 1332 | |
af3b1cba | 1333 | assert( PL_op->op_type == OP_KEYS |
a2232057 DM |
1334 | || PL_op->op_type == OP_VALUES |
1335 | || PL_op->op_type == OP_AVHVSWITCH); | |
463ee0b2 | 1336 | |
4fa080db DM |
1337 | assert(!( PL_op->op_type == OP_VALUES |
1338 | && (PL_op->op_private & OPpMAYBE_LVSUB))); | |
1339 | ||
800e9ae0 | 1340 | (void)hv_iterinit(keys); /* always reset iterator regardless */ |
748a9306 | 1341 | |
54310121 | 1342 | if (gimme == G_VOID) |
aa689395 | 1343 | RETURN; |
1344 | ||
54310121 | 1345 | if (gimme == G_SCALAR) { |
78f9721b | 1346 | if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */ |
2154eca7 EB |
1347 | SV * const ret = sv_2mortal(newSV_type(SVt_PVLV)); /* Not TARG RT#67838 */ |
1348 | sv_magic(ret, NULL, PERL_MAGIC_nkeys, NULL, 0); | |
1349 | LvTYPE(ret) = 'k'; | |
1350 | LvTARG(ret) = SvREFCNT_inc_simple(keys); | |
1351 | PUSHs(ret); | |
81714fb9 | 1352 | } |
463ee0b2 | 1353 | else { |
2154eca7 EB |
1354 | IV i; |
1355 | dTARGET; | |
1356 | ||
af3b1cba DM |
1357 | /* note that in 'scalar(keys %h)' the OP_KEYS is usually |
1358 | * optimised away and the action is performed directly by the | |
1359 | * padhv or rv2hv op. We now only get here via OP_AVHVSWITCH | |
1360 | * and \&CORE::keys | |
1361 | */ | |
2154eca7 | 1362 | if (! SvTIED_mg((const SV *)keys, PERL_MAGIC_tied) ) { |
1b95d04f | 1363 | i = HvUSEDKEYS(keys); |
2154eca7 EB |
1364 | } |
1365 | else { | |
1366 | i = 0; | |
1367 | while (hv_iternext(keys)) i++; | |
1368 | } | |
1369 | PUSHi( i ); | |
463ee0b2 | 1370 | } |
463ee0b2 LW |
1371 | RETURN; |
1372 | } | |
1373 | ||
a061ab0b FC |
1374 | if (UNLIKELY(PL_op->op_private & OPpMAYBE_LVSUB)) { |
1375 | const I32 flags = is_lvalue_sub(); | |
1376 | if (flags && !(flags & OPpENTERSUB_INARGS)) | |
1377 | /* diag_listed_as: Can't modify %s in %s */ | |
1378 | Perl_croak(aTHX_ "Can't modify keys in list assignment"); | |
1379 | } | |
1380 | ||
8dc9003f DM |
1381 | PUTBACK; |
1382 | hv_pushkv(keys, (dokeys | (dovalues << 1))); | |
1383 | return NORMAL; | |
463ee0b2 | 1384 | } |
4e35701f | 1385 | |
af3babe4 | 1386 | /* |
14d04a33 | 1387 | * ex: set ts=8 sts=4 sw=4 et: |
37442d52 | 1388 | */ |