Commit | Line | Data |
a0d0e21e |
1 | /* doop.c |
79072805 |
2 | * |
3818b22b |
3 | * Copyright (c) 1991-2000, 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 | |
075321c3 |
24 | #define HALF_UTF8_UPGRADE(start,end) \ |
01ec43d0 |
25 | STMT_START { \ |
96c7109f |
26 | if ((start)<(end)) { \ |
01ec43d0 |
27 | U8* NeWsTr; \ |
48b1b78b |
28 | STRLEN LeN = (end) - (start); \ |
01ec43d0 |
29 | NeWsTr = bytes_to_utf8(start, &LeN); \ |
075321c3 |
30 | Safefree(start); \ |
31 | (start) = NeWsTr; \ |
32 | (end) = (start) + LeN; \ |
96c7109f |
33 | } \ |
01ec43d0 |
34 | } STMT_END |
b250498f |
35 | |
942e002e |
36 | STATIC I32 |
b250498f |
37 | S_do_trans_simple(pTHX_ SV *sv) |
79072805 |
38 | { |
4757a243 |
39 | U8 *s; |
b250498f |
40 | U8 *d; |
4757a243 |
41 | U8 *send; |
b250498f |
42 | U8 *dstart; |
4757a243 |
43 | I32 matches = 0; |
b250498f |
44 | I32 sutf = SvUTF8(sv); |
463ee0b2 |
45 | STRLEN len; |
4757a243 |
46 | short *tbl; |
47 | I32 ch; |
79072805 |
48 | |
4757a243 |
49 | tbl = (short*)cPVOP->op_pv; |
50 | if (!tbl) |
cea2e8a9 |
51 | Perl_croak(aTHX_ "panic: do_trans"); |
a0ed51b3 |
52 | |
4757a243 |
53 | s = (U8*)SvPV(sv, len); |
54 | send = s + len; |
55 | |
b250498f |
56 | /* First, take care of non-UTF8 input strings, because they're easy */ |
57 | if (!sutf) { |
01ec43d0 |
58 | while (s < send) { |
036b4402 |
59 | if ((ch = tbl[*s]) >= 0) { |
01ec43d0 |
60 | matches++; |
61 | *s++ = ch; |
62 | } |
63 | else |
64 | s++; |
65 | } |
66 | SvSETMAGIC(sv); |
b250498f |
67 | return matches; |
68 | } |
4757a243 |
69 | |
b250498f |
70 | /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */ |
71 | Newz(0, d, len*2+1, U8); |
72 | dstart = d; |
73 | while (s < send) { |
ba210ebe |
74 | STRLEN ulen; |
b250498f |
75 | short c; |
76 | |
77 | ulen = 1; |
78 | /* Need to check this, otherwise 128..255 won't match */ |
dcad2880 |
79 | c = utf8_to_uv(s, send - s, &ulen, 0); |
b250498f |
80 | if (c < 0x100 && (ch = tbl[(short)c]) >= 0) { |
81 | matches++; |
ed646e6e |
82 | d = uv_to_utf8(d,ch); |
b250498f |
83 | s += ulen; |
01ec43d0 |
84 | } |
85 | else { /* No match -> copy */ |
b250498f |
86 | while (ulen--) |
87 | *d++ = *s++; |
88 | } |
89 | } |
01ec43d0 |
90 | *d = '\0'; |
be3174d2 |
91 | sv_setpvn(sv, (const char*)dstart, d - dstart); |
fdbb8cbd |
92 | Safefree(dstart); |
b250498f |
93 | SvUTF8_on(sv); |
b250498f |
94 | SvSETMAGIC(sv); |
4757a243 |
95 | return matches; |
96 | } |
97 | |
942e002e |
98 | STATIC I32 |
036b4402 |
99 | S_do_trans_count(pTHX_ SV *sv)/* SPC - OK */ |
4757a243 |
100 | { |
4757a243 |
101 | U8 *s; |
102 | U8 *send; |
103 | I32 matches = 0; |
036b4402 |
104 | I32 hasutf = SvUTF8(sv); |
4757a243 |
105 | STRLEN len; |
106 | short *tbl; |
107 | |
108 | tbl = (short*)cPVOP->op_pv; |
109 | if (!tbl) |
cea2e8a9 |
110 | Perl_croak(aTHX_ "panic: do_trans"); |
4757a243 |
111 | |
112 | s = (U8*)SvPV(sv, len); |
113 | send = s + len; |
114 | |
115 | while (s < send) { |
036b4402 |
116 | if (hasutf && *s & 0x80) |
01ec43d0 |
117 | s += UTF8SKIP(s); |
036b4402 |
118 | else { |
b250498f |
119 | UV c; |
ba210ebe |
120 | STRLEN ulen; |
b250498f |
121 | ulen = 1; |
122 | if (hasutf) |
dcad2880 |
123 | c = utf8_to_uv(s, send - s, &ulen, 0); |
b250498f |
124 | else |
125 | c = *s; |
126 | if (c < 0x100 && tbl[c] >= 0) |
036b4402 |
127 | matches++; |
01ec43d0 |
128 | s += ulen; |
036b4402 |
129 | } |
4757a243 |
130 | } |
131 | |
132 | return matches; |
133 | } |
134 | |
942e002e |
135 | STATIC I32 |
b250498f |
136 | S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */ |
4757a243 |
137 | { |
4757a243 |
138 | U8 *s; |
139 | U8 *send; |
140 | U8 *d; |
5e44153e |
141 | U8 *dstart; |
036b4402 |
142 | I32 hasutf = SvUTF8(sv); |
4757a243 |
143 | I32 matches = 0; |
144 | STRLEN len; |
145 | short *tbl; |
146 | I32 ch; |
147 | |
148 | tbl = (short*)cPVOP->op_pv; |
149 | if (!tbl) |
cea2e8a9 |
150 | Perl_croak(aTHX_ "panic: do_trans"); |
4757a243 |
151 | |
152 | s = (U8*)SvPV(sv, len); |
153 | send = s + len; |
154 | |
5e44153e |
155 | Newz(0, d, len*2+1, U8); |
156 | dstart = d; |
157 | |
4757a243 |
158 | if (PL_op->op_private & OPpTRANS_SQUASH) { |
159 | U8* p = send; |
160 | |
161 | while (s < send) { |
036b4402 |
162 | if (hasutf && *s & 0x80) |
01ec43d0 |
163 | s += UTF8SKIP(s); |
036b4402 |
164 | else { |
165 | if ((ch = tbl[*s]) >= 0) { |
166 | *d = ch; |
167 | matches++; |
5e44153e |
168 | if (p != d - 1 || *p != *d) |
036b4402 |
169 | p = d++; |
170 | } |
01ec43d0 |
171 | else if (ch == -1) /* -1 is unmapped character */ |
036b4402 |
172 | *d++ = *s; /* -2 is delete character */ |
173 | s++; |
174 | } |
a0ed51b3 |
175 | } |
4757a243 |
176 | } |
177 | else { |
178 | while (s < send) { |
5e44153e |
179 | UV comp; |
036b4402 |
180 | if (hasutf && *s & 0x80) |
5e44153e |
181 | comp = utf8_to_uv_simple(s, NULL); |
182 | else |
183 | comp = *s; |
184 | |
185 | ch = tbl[comp]; |
186 | |
187 | if (ch == -1) { /* -1 is unmapped character */ |
188 | ch = comp; |
189 | matches--; |
190 | } |
191 | |
ed646e6e |
192 | if (ch >= 0) |
193 | d = uv_to_utf8(d, ch); |
194 | |
5e44153e |
195 | matches++; |
196 | |
197 | s += hasutf && *s & 0x80 ? UNISKIP(*s) : 1; |
198 | |
5d06d08e |
199 | } |
4757a243 |
200 | } |
5e44153e |
201 | |
4757a243 |
202 | *d = '\0'; |
4757a243 |
203 | |
5e44153e |
204 | sv_setpvn(sv, (const char*)dstart, d - dstart); |
205 | Safefree(dstart); |
206 | if (hasutf) |
207 | SvUTF8_on(sv); |
208 | SvSETMAGIC(sv); |
4757a243 |
209 | return matches; |
5e44153e |
210 | |
4757a243 |
211 | } |
212 | |
942e002e |
213 | STATIC I32 |
036b4402 |
214 | S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */ |
4757a243 |
215 | { |
4757a243 |
216 | U8 *s; |
217 | U8 *send; |
218 | U8 *d; |
036b4402 |
219 | U8 *start; |
220 | U8 *dstart; |
4757a243 |
221 | I32 matches = 0; |
222 | STRLEN len; |
223 | |
224 | SV* rv = (SV*)cSVOP->op_sv; |
225 | HV* hv = (HV*)SvRV(rv); |
226 | SV** svp = hv_fetch(hv, "NONE", 4, FALSE); |
227 | UV none = svp ? SvUV(*svp) : 0x7fffffff; |
228 | UV extra = none + 1; |
229 | UV final; |
230 | UV uv; |
8e84507e |
231 | I32 isutf; |
036b4402 |
232 | I32 howmany; |
4757a243 |
233 | |
036b4402 |
234 | isutf = SvUTF8(sv); |
4757a243 |
235 | s = (U8*)SvPV(sv, len); |
236 | send = s + len; |
036b4402 |
237 | start = s; |
4757a243 |
238 | |
239 | svp = hv_fetch(hv, "FINAL", 5, FALSE); |
240 | if (svp) |
241 | final = SvUV(*svp); |
242 | |
036b4402 |
243 | /* d needs to be bigger than s, in case e.g. upgrading is required */ |
244 | Newz(0, d, len*2+1, U8); |
245 | dstart = d; |
4757a243 |
246 | while (s < send) { |
247 | if ((uv = swash_fetch(rv, s)) < none) { |
248 | s += UTF8SKIP(s); |
249 | matches++; |
01ec43d0 |
250 | if ((uv & 0x80) && !isutf++) |
075321c3 |
251 | HALF_UTF8_UPGRADE(dstart,d); |
4757a243 |
252 | d = uv_to_utf8(d, uv); |
253 | } |
254 | else if (uv == none) { |
255 | int i; |
01ec43d0 |
256 | i = UTF8SKIP(s); |
b250498f |
257 | if (i > 1 && !isutf++) |
075321c3 |
258 | HALF_UTF8_UPGRADE(dstart,d); |
036b4402 |
259 | while(i--) |
075321c3 |
260 | *d++ = *s++; |
4757a243 |
261 | } |
262 | else if (uv == extra) { |
036b4402 |
263 | int i; |
01ec43d0 |
264 | i = UTF8SKIP(s); |
036b4402 |
265 | s += i; |
4757a243 |
266 | matches++; |
8e84507e |
267 | if (i > 1 && !isutf++) |
075321c3 |
268 | HALF_UTF8_UPGRADE(dstart,d); |
4757a243 |
269 | d = uv_to_utf8(d, final); |
270 | } |
271 | else |
272 | s += UTF8SKIP(s); |
273 | } |
274 | *d = '\0'; |
be3174d2 |
275 | sv_setpvn(sv, (const char*)dstart, d - dstart); |
4757a243 |
276 | SvSETMAGIC(sv); |
036b4402 |
277 | if (isutf) |
278 | SvUTF8_on(sv); |
4757a243 |
279 | |
280 | return matches; |
281 | } |
282 | |
942e002e |
283 | STATIC I32 |
036b4402 |
284 | S_do_trans_count_utf8(pTHX_ SV *sv)/* SPC - OK */ |
4757a243 |
285 | { |
4757a243 |
286 | U8 *s; |
287 | U8 *send; |
288 | I32 matches = 0; |
289 | STRLEN len; |
290 | |
291 | SV* rv = (SV*)cSVOP->op_sv; |
292 | HV* hv = (HV*)SvRV(rv); |
293 | SV** svp = hv_fetch(hv, "NONE", 4, FALSE); |
294 | UV none = svp ? SvUV(*svp) : 0x7fffffff; |
295 | UV uv; |
296 | |
297 | s = (U8*)SvPV(sv, len); |
036b4402 |
298 | if (!SvUTF8(sv)) |
299 | s = bytes_to_utf8(s, &len); |
4757a243 |
300 | send = s + len; |
301 | |
302 | while (s < send) { |
834a4ddd |
303 | if ((uv = swash_fetch(rv, s)) < none) |
4757a243 |
304 | matches++; |
834a4ddd |
305 | s += UTF8SKIP(s); |
4757a243 |
306 | } |
307 | |
308 | return matches; |
309 | } |
310 | |
942e002e |
311 | STATIC I32 |
036b4402 |
312 | S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */ |
4757a243 |
313 | { |
4757a243 |
314 | U8 *s; |
315 | U8 *send; |
316 | U8 *d; |
317 | I32 matches = 0; |
318 | I32 squash = PL_op->op_private & OPpTRANS_SQUASH; |
4757a243 |
319 | I32 del = PL_op->op_private & OPpTRANS_DELETE; |
320 | SV* rv = (SV*)cSVOP->op_sv; |
321 | HV* hv = (HV*)SvRV(rv); |
322 | SV** svp = hv_fetch(hv, "NONE", 4, FALSE); |
323 | UV none = svp ? SvUV(*svp) : 0x7fffffff; |
324 | UV extra = none + 1; |
325 | UV final; |
326 | UV uv; |
327 | STRLEN len; |
328 | U8 *dst; |
b250498f |
329 | I32 isutf = SvUTF8(sv); |
4757a243 |
330 | |
331 | s = (U8*)SvPV(sv, len); |
332 | send = s + len; |
333 | |
334 | svp = hv_fetch(hv, "FINAL", 5, FALSE); |
335 | if (svp) |
336 | final = SvUV(*svp); |
337 | |
b250498f |
338 | Newz(0, d, len*2+1, U8); |
4757a243 |
339 | dst = d; |
4757a243 |
340 | |
341 | if (squash) { |
342 | UV puv = 0xfeedface; |
343 | while (s < send) { |
8e84507e |
344 | if (SvUTF8(sv)) |
4757a243 |
345 | uv = swash_fetch(rv, s); |
a0ed51b3 |
346 | else { |
4757a243 |
347 | U8 tmpbuf[2]; |
348 | uv = *s++; |
349 | if (uv < 0x80) |
350 | tmpbuf[0] = uv; |
351 | else { |
352 | tmpbuf[0] = (( uv >> 6) | 0xc0); |
353 | tmpbuf[1] = (( uv & 0x3f) | 0x80); |
354 | } |
355 | uv = swash_fetch(rv, tmpbuf); |
356 | } |
b250498f |
357 | |
4757a243 |
358 | if (uv < none) { |
359 | matches++; |
360 | if (uv != puv) { |
8e84507e |
361 | if ((uv & 0x80) && !isutf++) |
075321c3 |
362 | HALF_UTF8_UPGRADE(dst,d); |
01ec43d0 |
363 | d = uv_to_utf8(d, uv); |
4757a243 |
364 | puv = uv; |
365 | } |
075321c3 |
366 | s += UTF8SKIP(s); |
4757a243 |
367 | continue; |
368 | } |
369 | else if (uv == none) { /* "none" is unmapped character */ |
ba210ebe |
370 | STRLEN ulen; |
dcad2880 |
371 | *d++ = (U8)utf8_to_uv(s, send - s, &ulen, 0); |
01ec43d0 |
372 | s += ulen; |
4757a243 |
373 | puv = 0xfeedface; |
374 | continue; |
a0ed51b3 |
375 | } |
4757a243 |
376 | else if (uv == extra && !del) { |
377 | matches++; |
378 | if (uv != puv) { |
01ec43d0 |
379 | d = uv_to_utf8(d, final); |
4757a243 |
380 | puv = final; |
381 | } |
01ec43d0 |
382 | s += UTF8SKIP(s); |
4757a243 |
383 | continue; |
384 | } |
01ec43d0 |
385 | matches++; /* "none+1" is delete character */ |
386 | s += UTF8SKIP(s); |
a0ed51b3 |
387 | } |
79072805 |
388 | } |
389 | else { |
4757a243 |
390 | while (s < send) { |
8e84507e |
391 | if (SvUTF8(sv)) |
4757a243 |
392 | uv = swash_fetch(rv, s); |
4757a243 |
393 | else { |
394 | U8 tmpbuf[2]; |
395 | uv = *s++; |
396 | if (uv < 0x80) |
397 | tmpbuf[0] = uv; |
398 | else { |
399 | tmpbuf[0] = (( uv >> 6) | 0xc0); |
400 | tmpbuf[1] = (( uv & 0x3f) | 0x80); |
a0ed51b3 |
401 | } |
4757a243 |
402 | uv = swash_fetch(rv, tmpbuf); |
a0ed51b3 |
403 | } |
4757a243 |
404 | if (uv < none) { |
405 | matches++; |
01ec43d0 |
406 | d = uv_to_utf8(d, uv); |
407 | s += UTF8SKIP(s); |
4757a243 |
408 | continue; |
a0ed51b3 |
409 | } |
4757a243 |
410 | else if (uv == none) { /* "none" is unmapped character */ |
ba210ebe |
411 | STRLEN ulen; |
dcad2880 |
412 | *d++ = (U8)utf8_to_uv(s, send - s, &ulen, 0); |
01ec43d0 |
413 | s += ulen; |
4757a243 |
414 | continue; |
79072805 |
415 | } |
4757a243 |
416 | else if (uv == extra && !del) { |
417 | matches++; |
01ec43d0 |
418 | d = uv_to_utf8(d, final); |
419 | s += UTF8SKIP(s); |
4757a243 |
420 | continue; |
421 | } |
01ec43d0 |
422 | matches++; /* "none+1" is delete character */ |
423 | s += UTF8SKIP(s); |
79072805 |
424 | } |
4757a243 |
425 | } |
426 | if (dst) |
427 | sv_usepvn(sv, (char*)dst, d - dst); |
428 | else { |
429 | *d = '\0'; |
430 | SvCUR_set(sv, d - (U8*)SvPVX(sv)); |
431 | } |
432 | SvSETMAGIC(sv); |
433 | |
434 | return matches; |
435 | } |
436 | |
437 | I32 |
864dbfa3 |
438 | Perl_do_trans(pTHX_ SV *sv) |
4757a243 |
439 | { |
440 | STRLEN len; |
8e84507e |
441 | I32 hasutf = (PL_op->op_private & |
036b4402 |
442 | (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)); |
4757a243 |
443 | |
444 | if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) |
cea2e8a9 |
445 | Perl_croak(aTHX_ PL_no_modify); |
4757a243 |
446 | |
447 | (void)SvPV(sv, len); |
448 | if (!len) |
449 | return 0; |
450 | if (!SvPOKp(sv)) |
451 | (void)SvPV_force(sv, len); |
2de7b02f |
452 | if (!(PL_op->op_private & OPpTRANS_IDENTICAL)) |
453 | (void)SvPOK_only_UTF8(sv); |
4757a243 |
454 | |
cea2e8a9 |
455 | DEBUG_t( Perl_deb(aTHX_ "2.TBL\n")); |
4757a243 |
456 | |
036b4402 |
457 | switch (PL_op->op_private & ~hasutf & 63) { |
4757a243 |
458 | case 0: |
01ec43d0 |
459 | if (hasutf) |
460 | return do_trans_simple_utf8(sv); |
461 | else |
462 | return do_trans_simple(sv); |
4757a243 |
463 | |
464 | case OPpTRANS_IDENTICAL: |
01ec43d0 |
465 | if (hasutf) |
466 | return do_trans_count_utf8(sv); |
467 | else |
468 | return do_trans_count(sv); |
4757a243 |
469 | |
470 | default: |
01ec43d0 |
471 | if (hasutf) |
036b4402 |
472 | return do_trans_complex_utf8(sv); |
4757a243 |
473 | else |
036b4402 |
474 | return do_trans_complex(sv); |
79072805 |
475 | } |
79072805 |
476 | } |
477 | |
478 | void |
864dbfa3 |
479 | Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp) |
79072805 |
480 | { |
481 | SV **oldmark = mark; |
482 | register I32 items = sp - mark; |
79072805 |
483 | register STRLEN len; |
463ee0b2 |
484 | STRLEN delimlen; |
485 | register char *delim = SvPV(del, delimlen); |
486 | STRLEN tmplen; |
79072805 |
487 | |
488 | mark++; |
489 | len = (items > 0 ? (delimlen * (items - 1) ) : 0); |
07f14f54 |
490 | (void)SvUPGRADE(sv, SVt_PV); |
79072805 |
491 | if (SvLEN(sv) < len + items) { /* current length is way too short */ |
492 | while (items-- > 0) { |
1426bbf4 |
493 | if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) { |
463ee0b2 |
494 | SvPV(*mark, tmplen); |
495 | len += tmplen; |
79072805 |
496 | } |
497 | mark++; |
498 | } |
499 | SvGROW(sv, len + 1); /* so try to pre-extend */ |
500 | |
501 | mark = oldmark; |
db7c17d7 |
502 | items = sp - mark; |
79072805 |
503 | ++mark; |
504 | } |
505 | |
463ee0b2 |
506 | if (items-- > 0) { |
8990e307 |
507 | char *s; |
508 | |
92d29cee |
509 | sv_setpv(sv, ""); |
510 | if (*mark) |
511 | sv_catsv(sv, *mark); |
463ee0b2 |
512 | mark++; |
513 | } |
79072805 |
514 | else |
515 | sv_setpv(sv,""); |
516 | len = delimlen; |
517 | if (len) { |
518 | for (; items > 0; items--,mark++) { |
519 | sv_catpvn(sv,delim,len); |
520 | sv_catsv(sv,*mark); |
521 | } |
522 | } |
523 | else { |
524 | for (; items > 0; items--,mark++) |
525 | sv_catsv(sv,*mark); |
526 | } |
527 | SvSETMAGIC(sv); |
528 | } |
529 | |
530 | void |
864dbfa3 |
531 | Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg) |
79072805 |
532 | { |
46fc3d4c |
533 | STRLEN patlen; |
534 | char *pat = SvPV(*sarg, patlen); |
535 | bool do_taint = FALSE; |
536 | |
537 | sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint); |
79072805 |
538 | SvSETMAGIC(sv); |
46fc3d4c |
539 | if (do_taint) |
540 | SvTAINTED_on(sv); |
79072805 |
541 | } |
542 | |
33b45480 |
543 | /* currently converts input to bytes if possible, but doesn't sweat failure */ |
81e118e0 |
544 | UV |
545 | Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) |
546 | { |
547 | STRLEN srclen, len; |
548 | unsigned char *s = (unsigned char *) SvPV(sv, srclen); |
549 | UV retnum = 0; |
550 | |
a50d7633 |
551 | if (offset < 0) |
81e118e0 |
552 | return retnum; |
8e84507e |
553 | if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
a50d7633 |
554 | Perl_croak(aTHX_ "Illegal number of bits in vec"); |
246fae53 |
555 | |
dcad2880 |
556 | if (SvUTF8(sv)) |
33b45480 |
557 | (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE); |
246fae53 |
558 | |
81e118e0 |
559 | offset *= size; /* turn into bit offset */ |
560 | len = (offset + size + 7) / 8; /* required number of bytes */ |
561 | if (len > srclen) { |
562 | if (size <= 8) |
563 | retnum = 0; |
564 | else { |
565 | offset >>= 3; /* turn into byte offset */ |
566 | if (size == 16) { |
567 | if (offset >= srclen) |
568 | retnum = 0; |
569 | else |
628e1a40 |
570 | retnum = (UV) s[offset] << 8; |
81e118e0 |
571 | } |
572 | else if (size == 32) { |
573 | if (offset >= srclen) |
574 | retnum = 0; |
575 | else if (offset + 1 >= srclen) |
576 | retnum = |
577 | ((UV) s[offset ] << 24); |
578 | else if (offset + 2 >= srclen) |
579 | retnum = |
580 | ((UV) s[offset ] << 24) + |
581 | ((UV) s[offset + 1] << 16); |
582 | else |
583 | retnum = |
584 | ((UV) s[offset ] << 24) + |
585 | ((UV) s[offset + 1] << 16) + |
586 | ( s[offset + 2] << 8); |
587 | } |
d7d93a81 |
588 | #ifdef UV_IS_QUAD |
c5a0f51a |
589 | else if (size == 64) { |
c5a0f51a |
590 | if (ckWARN(WARN_PORTABLE)) |
591 | Perl_warner(aTHX_ WARN_PORTABLE, |
592 | "Bit vector size > 32 non-portable"); |
593 | if (offset >= srclen) |
594 | retnum = 0; |
595 | else if (offset + 1 >= srclen) |
596 | retnum = |
597 | (UV) s[offset ] << 56; |
598 | else if (offset + 2 >= srclen) |
599 | retnum = |
600 | ((UV) s[offset ] << 56) + |
601 | ((UV) s[offset + 1] << 48); |
602 | else if (offset + 3 >= srclen) |
603 | retnum = |
604 | ((UV) s[offset ] << 56) + |
605 | ((UV) s[offset + 1] << 48) + |
606 | ((UV) s[offset + 2] << 40); |
607 | else if (offset + 4 >= srclen) |
608 | retnum = |
609 | ((UV) s[offset ] << 56) + |
610 | ((UV) s[offset + 1] << 48) + |
611 | ((UV) s[offset + 2] << 40) + |
612 | ((UV) s[offset + 3] << 32); |
613 | else if (offset + 5 >= srclen) |
614 | retnum = |
615 | ((UV) s[offset ] << 56) + |
616 | ((UV) s[offset + 1] << 48) + |
617 | ((UV) s[offset + 2] << 40) + |
618 | ((UV) s[offset + 3] << 32) + |
619 | ( s[offset + 4] << 24); |
620 | else if (offset + 6 >= srclen) |
621 | retnum = |
622 | ((UV) s[offset ] << 56) + |
623 | ((UV) s[offset + 1] << 48) + |
624 | ((UV) s[offset + 2] << 40) + |
625 | ((UV) s[offset + 3] << 32) + |
626 | ((UV) s[offset + 4] << 24) + |
627 | ((UV) s[offset + 5] << 16); |
628 | else |
8e84507e |
629 | retnum = |
c5a0f51a |
630 | ((UV) s[offset ] << 56) + |
631 | ((UV) s[offset + 1] << 48) + |
632 | ((UV) s[offset + 2] << 40) + |
633 | ((UV) s[offset + 3] << 32) + |
634 | ((UV) s[offset + 4] << 24) + |
635 | ((UV) s[offset + 5] << 16) + |
628e1a40 |
636 | ( s[offset + 6] << 8); |
c5a0f51a |
637 | } |
638 | #endif |
81e118e0 |
639 | } |
640 | } |
641 | else if (size < 8) |
642 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); |
643 | else { |
644 | offset >>= 3; /* turn into byte offset */ |
645 | if (size == 8) |
646 | retnum = s[offset]; |
647 | else if (size == 16) |
648 | retnum = |
628e1a40 |
649 | ((UV) s[offset] << 8) + |
81e118e0 |
650 | s[offset + 1]; |
651 | else if (size == 32) |
652 | retnum = |
653 | ((UV) s[offset ] << 24) + |
654 | ((UV) s[offset + 1] << 16) + |
655 | ( s[offset + 2] << 8) + |
656 | s[offset + 3]; |
d7d93a81 |
657 | #ifdef UV_IS_QUAD |
c5a0f51a |
658 | else if (size == 64) { |
c5a0f51a |
659 | if (ckWARN(WARN_PORTABLE)) |
660 | Perl_warner(aTHX_ WARN_PORTABLE, |
661 | "Bit vector size > 32 non-portable"); |
662 | retnum = |
663 | ((UV) s[offset ] << 56) + |
664 | ((UV) s[offset + 1] << 48) + |
665 | ((UV) s[offset + 2] << 40) + |
666 | ((UV) s[offset + 3] << 32) + |
667 | ((UV) s[offset + 4] << 24) + |
668 | ((UV) s[offset + 5] << 16) + |
628e1a40 |
669 | ( s[offset + 6] << 8) + |
c5a0f51a |
670 | s[offset + 7]; |
671 | } |
672 | #endif |
81e118e0 |
673 | } |
674 | |
675 | return retnum; |
676 | } |
677 | |
33b45480 |
678 | /* currently converts input to bytes if possible but doesn't sweat failures, |
679 | * although it does ensure that the string it clobbers is not marked as |
680 | * utf8-valid any more |
681 | */ |
79072805 |
682 | void |
864dbfa3 |
683 | Perl_do_vecset(pTHX_ SV *sv) |
79072805 |
684 | { |
685 | SV *targ = LvTARG(sv); |
686 | register I32 offset; |
687 | register I32 size; |
8990e307 |
688 | register unsigned char *s; |
81e118e0 |
689 | register UV lval; |
79072805 |
690 | I32 mask; |
a0d0e21e |
691 | STRLEN targlen; |
692 | STRLEN len; |
79072805 |
693 | |
8990e307 |
694 | if (!targ) |
695 | return; |
a0d0e21e |
696 | s = (unsigned char*)SvPV_force(targ, targlen); |
246fae53 |
697 | if (SvUTF8(targ)) { |
33b45480 |
698 | /* This is handled by the SvPOK_only below... |
699 | if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE)) |
700 | SvUTF8_off(targ); |
701 | */ |
702 | (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE); |
246fae53 |
703 | } |
704 | |
4ebbc975 |
705 | (void)SvPOK_only(targ); |
81e118e0 |
706 | lval = SvUV(sv); |
79072805 |
707 | offset = LvTARGOFF(sv); |
fe58ced6 |
708 | if (offset < 0) |
709 | Perl_croak(aTHX_ "Assigning to negative offset in vec"); |
79072805 |
710 | size = LvTARGLEN(sv); |
8e84507e |
711 | if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
a50d7633 |
712 | Perl_croak(aTHX_ "Illegal number of bits in vec"); |
8e84507e |
713 | |
81e118e0 |
714 | offset *= size; /* turn into bit offset */ |
715 | len = (offset + size + 7) / 8; /* required number of bytes */ |
a0d0e21e |
716 | if (len > targlen) { |
717 | s = (unsigned char*)SvGROW(targ, len + 1); |
12ae5dfc |
718 | (void)memzero((char *)(s + targlen), len - targlen + 1); |
a0d0e21e |
719 | SvCUR_set(targ, len); |
720 | } |
8e84507e |
721 | |
79072805 |
722 | if (size < 8) { |
723 | mask = (1 << size) - 1; |
724 | size = offset & 7; |
725 | lval &= mask; |
81e118e0 |
726 | offset >>= 3; /* turn into byte offset */ |
79072805 |
727 | s[offset] &= ~(mask << size); |
728 | s[offset] |= lval << size; |
729 | } |
730 | else { |
81e118e0 |
731 | offset >>= 3; /* turn into byte offset */ |
79072805 |
732 | if (size == 8) |
c5a0f51a |
733 | s[offset ] = lval & 0xff; |
79072805 |
734 | else if (size == 16) { |
c5a0f51a |
735 | s[offset ] = (lval >> 8) & 0xff; |
736 | s[offset+1] = lval & 0xff; |
79072805 |
737 | } |
738 | else if (size == 32) { |
c5a0f51a |
739 | s[offset ] = (lval >> 24) & 0xff; |
740 | s[offset+1] = (lval >> 16) & 0xff; |
741 | s[offset+2] = (lval >> 8) & 0xff; |
742 | s[offset+3] = lval & 0xff; |
743 | } |
d7d93a81 |
744 | #ifdef UV_IS_QUAD |
c5a0f51a |
745 | else if (size == 64) { |
c5a0f51a |
746 | if (ckWARN(WARN_PORTABLE)) |
747 | Perl_warner(aTHX_ WARN_PORTABLE, |
748 | "Bit vector size > 32 non-portable"); |
749 | s[offset ] = (lval >> 56) & 0xff; |
750 | s[offset+1] = (lval >> 48) & 0xff; |
751 | s[offset+2] = (lval >> 40) & 0xff; |
752 | s[offset+3] = (lval >> 32) & 0xff; |
753 | s[offset+4] = (lval >> 24) & 0xff; |
754 | s[offset+5] = (lval >> 16) & 0xff; |
755 | s[offset+6] = (lval >> 8) & 0xff; |
756 | s[offset+7] = lval & 0xff; |
79072805 |
757 | } |
dc1e3f56 |
758 | #endif |
79072805 |
759 | } |
7bb043c3 |
760 | SvSETMAGIC(targ); |
79072805 |
761 | } |
762 | |
763 | void |
864dbfa3 |
764 | Perl_do_chop(pTHX_ register SV *astr, register SV *sv) |
79072805 |
765 | { |
463ee0b2 |
766 | STRLEN len; |
a0d0e21e |
767 | char *s; |
8e84507e |
768 | |
79072805 |
769 | if (SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
770 | register I32 i; |
771 | I32 max; |
772 | AV* av = (AV*)sv; |
773 | max = AvFILL(av); |
774 | for (i = 0; i <= max; i++) { |
775 | sv = (SV*)av_fetch(av, i, FALSE); |
3280af22 |
776 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) |
a0d0e21e |
777 | do_chop(astr, sv); |
778 | } |
779 | return; |
79072805 |
780 | } |
aa854799 |
781 | else if (SvTYPE(sv) == SVt_PVHV) { |
a0d0e21e |
782 | HV* hv = (HV*)sv; |
783 | HE* entry; |
784 | (void)hv_iterinit(hv); |
785 | /*SUPPRESS 560*/ |
155aba94 |
786 | while ((entry = hv_iternext(hv))) |
a0d0e21e |
787 | do_chop(astr,hv_iterval(hv,entry)); |
788 | return; |
79072805 |
789 | } |
aa854799 |
790 | else if (SvREADONLY(sv)) |
cea2e8a9 |
791 | Perl_croak(aTHX_ PL_no_modify); |
a0d0e21e |
792 | s = SvPV(sv, len); |
748a9306 |
793 | if (len && !SvPOK(sv)) |
a0d0e21e |
794 | s = SvPV_force(sv, len); |
7e2040f0 |
795 | if (DO_UTF8(sv)) { |
a0ed51b3 |
796 | if (s && len) { |
797 | char *send = s + len; |
798 | char *start = s; |
799 | s = send - 1; |
800 | while ((*s & 0xc0) == 0x80) |
801 | --s; |
0453d815 |
802 | if (UTF8SKIP(s) != send - s && ckWARN_d(WARN_UTF8)) |
803 | Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character"); |
a0ed51b3 |
804 | sv_setpvn(astr, s, send - s); |
805 | *s = '\0'; |
806 | SvCUR_set(sv, s - start); |
807 | SvNIOK_off(sv); |
7e2040f0 |
808 | SvUTF8_on(astr); |
a0ed51b3 |
809 | } |
810 | else |
811 | sv_setpvn(astr, "", 0); |
812 | } |
7e2040f0 |
813 | else if (s && len) { |
a0d0e21e |
814 | s += --len; |
815 | sv_setpvn(astr, s, 1); |
816 | *s = '\0'; |
817 | SvCUR_set(sv, len); |
2c19a612 |
818 | SvUTF8_off(sv); |
a0d0e21e |
819 | SvNIOK_off(sv); |
79072805 |
820 | } |
821 | else |
a0d0e21e |
822 | sv_setpvn(astr, "", 0); |
823 | SvSETMAGIC(sv); |
7e2040f0 |
824 | } |
a0d0e21e |
825 | |
826 | I32 |
864dbfa3 |
827 | Perl_do_chomp(pTHX_ register SV *sv) |
a0d0e21e |
828 | { |
c07a80fd |
829 | register I32 count; |
a0d0e21e |
830 | STRLEN len; |
831 | char *s; |
c07a80fd |
832 | |
3280af22 |
833 | if (RsSNARF(PL_rs)) |
c07a80fd |
834 | return 0; |
4c5a6083 |
835 | if (RsRECORD(PL_rs)) |
836 | return 0; |
c07a80fd |
837 | count = 0; |
a0d0e21e |
838 | if (SvTYPE(sv) == SVt_PVAV) { |
839 | register I32 i; |
840 | I32 max; |
841 | AV* av = (AV*)sv; |
842 | max = AvFILL(av); |
843 | for (i = 0; i <= max; i++) { |
844 | sv = (SV*)av_fetch(av, i, FALSE); |
3280af22 |
845 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) |
a0d0e21e |
846 | count += do_chomp(sv); |
847 | } |
848 | return count; |
849 | } |
aa854799 |
850 | else if (SvTYPE(sv) == SVt_PVHV) { |
a0d0e21e |
851 | HV* hv = (HV*)sv; |
852 | HE* entry; |
853 | (void)hv_iterinit(hv); |
854 | /*SUPPRESS 560*/ |
155aba94 |
855 | while ((entry = hv_iternext(hv))) |
a0d0e21e |
856 | count += do_chomp(hv_iterval(hv,entry)); |
857 | return count; |
858 | } |
aa854799 |
859 | else if (SvREADONLY(sv)) |
cea2e8a9 |
860 | Perl_croak(aTHX_ PL_no_modify); |
a0d0e21e |
861 | s = SvPV(sv, len); |
862 | if (len && !SvPOKp(sv)) |
863 | s = SvPV_force(sv, len); |
864 | if (s && len) { |
865 | s += --len; |
3280af22 |
866 | if (RsPARA(PL_rs)) { |
a0d0e21e |
867 | if (*s != '\n') |
868 | goto nope; |
869 | ++count; |
870 | while (len && s[-1] == '\n') { |
871 | --len; |
872 | --s; |
873 | ++count; |
874 | } |
875 | } |
a0d0e21e |
876 | else { |
c07a80fd |
877 | STRLEN rslen; |
3280af22 |
878 | char *rsptr = SvPV(PL_rs, rslen); |
c07a80fd |
879 | if (rslen == 1) { |
880 | if (*s != *rsptr) |
881 | goto nope; |
882 | ++count; |
883 | } |
884 | else { |
8c2cee6f |
885 | if (len < rslen - 1) |
c07a80fd |
886 | goto nope; |
887 | len -= rslen - 1; |
888 | s -= rslen - 1; |
36477c24 |
889 | if (memNE(s, rsptr, rslen)) |
c07a80fd |
890 | goto nope; |
891 | count += rslen; |
892 | } |
a0d0e21e |
893 | } |
a0d0e21e |
894 | *s = '\0'; |
895 | SvCUR_set(sv, len); |
896 | SvNIOK_off(sv); |
897 | } |
898 | nope: |
899 | SvSETMAGIC(sv); |
900 | return count; |
8e84507e |
901 | } |
79072805 |
902 | |
903 | void |
864dbfa3 |
904 | Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) |
79072805 |
905 | { |
906 | #ifdef LIBERAL |
907 | register long *dl; |
908 | register long *ll; |
909 | register long *rl; |
910 | #endif |
911 | register char *dc; |
463ee0b2 |
912 | STRLEN leftlen; |
913 | STRLEN rightlen; |
7a4c00b4 |
914 | register char *lc; |
915 | register char *rc; |
79072805 |
916 | register I32 len; |
a0d0e21e |
917 | I32 lensave; |
7a4c00b4 |
918 | char *lsave; |
919 | char *rsave; |
0c57e439 |
920 | bool left_utf = DO_UTF8(left); |
921 | bool right_utf = DO_UTF8(right); |
c9b3c8d0 |
922 | I32 needlen; |
0c57e439 |
923 | |
924 | if (left_utf && !right_utf) |
925 | sv_utf8_upgrade(right); |
a1ca4561 |
926 | else if (!left_utf && right_utf) |
0c57e439 |
927 | sv_utf8_upgrade(left); |
79072805 |
928 | |
1fbd88dc |
929 | if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) |
930 | sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */ |
7a4c00b4 |
931 | lsave = lc = SvPV(left, leftlen); |
932 | rsave = rc = SvPV(right, rightlen); |
93a17b20 |
933 | len = leftlen < rightlen ? leftlen : rightlen; |
a0d0e21e |
934 | lensave = len; |
c9b3c8d0 |
935 | if ((left_utf || right_utf) && (sv == left || sv == right)) { |
936 | needlen = optype == OP_BIT_AND ? len : leftlen + rightlen; |
937 | Newz(801, dc, needlen + 1, char); |
938 | } |
939 | else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { |
2d8e6c8d |
940 | STRLEN n_a; |
941 | dc = SvPV_force(sv, n_a); |
ff68c719 |
942 | if (SvCUR(sv) < len) { |
943 | dc = SvGROW(sv, len + 1); |
944 | (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); |
945 | } |
c9b3c8d0 |
946 | if (optype != OP_BIT_AND && (left_utf || right_utf)) |
947 | dc = SvGROW(sv, leftlen + rightlen + 1); |
ff68c719 |
948 | } |
949 | else { |
c9b3c8d0 |
950 | needlen = ((optype == OP_BIT_AND) |
951 | ? len : (leftlen > rightlen ? leftlen : rightlen)); |
ff68c719 |
952 | Newz(801, dc, needlen + 1, char); |
953 | (void)sv_usepvn(sv, dc, needlen); |
954 | dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ |
79072805 |
955 | } |
a0d0e21e |
956 | SvCUR_set(sv, len); |
957 | (void)SvPOK_only(sv); |
0c57e439 |
958 | if (left_utf || right_utf) { |
959 | UV duc, luc, ruc; |
c9b3c8d0 |
960 | char *dcsave = dc; |
0c57e439 |
961 | STRLEN lulen = leftlen; |
962 | STRLEN rulen = rightlen; |
ba210ebe |
963 | STRLEN ulen; |
0c57e439 |
964 | |
965 | switch (optype) { |
966 | case OP_BIT_AND: |
967 | while (lulen && rulen) { |
cc366d4b |
968 | luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
969 | lc += ulen; |
970 | lulen -= ulen; |
cc366d4b |
971 | ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
972 | rc += ulen; |
973 | rulen -= ulen; |
974 | duc = luc & ruc; |
975 | dc = (char*)uv_to_utf8((U8*)dc, duc); |
976 | } |
c9b3c8d0 |
977 | if (sv == left || sv == right) |
978 | (void)sv_usepvn(sv, dcsave, needlen); |
979 | SvCUR_set(sv, dc - dcsave); |
0c57e439 |
980 | break; |
981 | case OP_BIT_XOR: |
982 | while (lulen && rulen) { |
cc366d4b |
983 | luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
984 | lc += ulen; |
985 | lulen -= ulen; |
cc366d4b |
986 | ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
987 | rc += ulen; |
988 | rulen -= ulen; |
989 | duc = luc ^ ruc; |
990 | dc = (char*)uv_to_utf8((U8*)dc, duc); |
991 | } |
992 | goto mop_up_utf; |
993 | case OP_BIT_OR: |
994 | while (lulen && rulen) { |
cc366d4b |
995 | luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
996 | lc += ulen; |
997 | lulen -= ulen; |
cc366d4b |
998 | ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
999 | rc += ulen; |
1000 | rulen -= ulen; |
1001 | duc = luc | ruc; |
1002 | dc = (char*)uv_to_utf8((U8*)dc, duc); |
1003 | } |
1004 | mop_up_utf: |
c9b3c8d0 |
1005 | if (sv == left || sv == right) |
1006 | (void)sv_usepvn(sv, dcsave, needlen); |
1007 | SvCUR_set(sv, dc - dcsave); |
0c57e439 |
1008 | if (rulen) |
1009 | sv_catpvn(sv, rc, rulen); |
1010 | else if (lulen) |
1011 | sv_catpvn(sv, lc, lulen); |
1012 | else |
1013 | *SvEND(sv) = '\0'; |
1014 | break; |
1015 | } |
1016 | SvUTF8_on(sv); |
1017 | goto finish; |
1018 | } |
1019 | else |
79072805 |
1020 | #ifdef LIBERAL |
1021 | if (len >= sizeof(long)*4 && |
1022 | !((long)dc % sizeof(long)) && |
1023 | !((long)lc % sizeof(long)) && |
1024 | !((long)rc % sizeof(long))) /* It's almost always aligned... */ |
1025 | { |
1026 | I32 remainder = len % (sizeof(long)*4); |
1027 | len /= (sizeof(long)*4); |
1028 | |
1029 | dl = (long*)dc; |
1030 | ll = (long*)lc; |
1031 | rl = (long*)rc; |
1032 | |
1033 | switch (optype) { |
1034 | case OP_BIT_AND: |
1035 | while (len--) { |
1036 | *dl++ = *ll++ & *rl++; |
1037 | *dl++ = *ll++ & *rl++; |
1038 | *dl++ = *ll++ & *rl++; |
1039 | *dl++ = *ll++ & *rl++; |
1040 | } |
1041 | break; |
a0d0e21e |
1042 | case OP_BIT_XOR: |
79072805 |
1043 | while (len--) { |
1044 | *dl++ = *ll++ ^ *rl++; |
1045 | *dl++ = *ll++ ^ *rl++; |
1046 | *dl++ = *ll++ ^ *rl++; |
1047 | *dl++ = *ll++ ^ *rl++; |
1048 | } |
1049 | break; |
1050 | case OP_BIT_OR: |
1051 | while (len--) { |
1052 | *dl++ = *ll++ | *rl++; |
1053 | *dl++ = *ll++ | *rl++; |
1054 | *dl++ = *ll++ | *rl++; |
1055 | *dl++ = *ll++ | *rl++; |
1056 | } |
1057 | } |
1058 | |
1059 | dc = (char*)dl; |
1060 | lc = (char*)ll; |
1061 | rc = (char*)rl; |
1062 | |
1063 | len = remainder; |
1064 | } |
1065 | #endif |
a0d0e21e |
1066 | { |
a0d0e21e |
1067 | switch (optype) { |
1068 | case OP_BIT_AND: |
1069 | while (len--) |
1070 | *dc++ = *lc++ & *rc++; |
1071 | break; |
1072 | case OP_BIT_XOR: |
1073 | while (len--) |
1074 | *dc++ = *lc++ ^ *rc++; |
1075 | goto mop_up; |
1076 | case OP_BIT_OR: |
1077 | while (len--) |
1078 | *dc++ = *lc++ | *rc++; |
1079 | mop_up: |
1080 | len = lensave; |
1081 | if (rightlen > len) |
1082 | sv_catpvn(sv, rsave + len, rightlen - len); |
1083 | else if (leftlen > len) |
1084 | sv_catpvn(sv, lsave + len, leftlen - len); |
4633a7c4 |
1085 | else |
1086 | *SvEND(sv) = '\0'; |
a0d0e21e |
1087 | break; |
1088 | } |
79072805 |
1089 | } |
0c57e439 |
1090 | finish: |
fb73857a |
1091 | SvTAINT(sv); |
79072805 |
1092 | } |
463ee0b2 |
1093 | |
1094 | OP * |
cea2e8a9 |
1095 | Perl_do_kv(pTHX) |
463ee0b2 |
1096 | { |
4e35701f |
1097 | djSP; |
463ee0b2 |
1098 | HV *hv = (HV*)POPs; |
800e9ae0 |
1099 | HV *keys; |
463ee0b2 |
1100 | register HE *entry; |
463ee0b2 |
1101 | SV *tmpstr; |
54310121 |
1102 | I32 gimme = GIMME_V; |
533c011a |
1103 | I32 dokeys = (PL_op->op_type == OP_KEYS); |
1104 | I32 dovalues = (PL_op->op_type == OP_VALUES); |
c750a3ec |
1105 | I32 realhv = (SvTYPE(hv) == SVt_PVHV); |
8e84507e |
1106 | |
1107 | if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV) |
a0d0e21e |
1108 | dokeys = dovalues = TRUE; |
463ee0b2 |
1109 | |
85581909 |
1110 | if (!hv) { |
533c011a |
1111 | if (PL_op->op_flags & OPf_MOD) { /* lvalue */ |
85581909 |
1112 | dTARGET; /* make sure to clear its target here */ |
1113 | if (SvTYPE(TARG) == SVt_PVLV) |
1114 | LvTARG(TARG) = Nullsv; |
1115 | PUSHs(TARG); |
1116 | } |
463ee0b2 |
1117 | RETURN; |
85581909 |
1118 | } |
748a9306 |
1119 | |
800e9ae0 |
1120 | keys = realhv ? hv : avhv_keys((AV*)hv); |
1121 | (void)hv_iterinit(keys); /* always reset iterator regardless */ |
748a9306 |
1122 | |
54310121 |
1123 | if (gimme == G_VOID) |
aa689395 |
1124 | RETURN; |
1125 | |
54310121 |
1126 | if (gimme == G_SCALAR) { |
6ee623d5 |
1127 | IV i; |
463ee0b2 |
1128 | dTARGET; |
1129 | |
533c011a |
1130 | if (PL_op->op_flags & OPf_MOD) { /* lvalue */ |
85581909 |
1131 | if (SvTYPE(TARG) < SVt_PVLV) { |
1132 | sv_upgrade(TARG, SVt_PVLV); |
1133 | sv_magic(TARG, Nullsv, 'k', Nullch, 0); |
1134 | } |
1135 | LvTYPE(TARG) = 'k'; |
800e9ae0 |
1136 | if (LvTARG(TARG) != (SV*)keys) { |
6ff81951 |
1137 | if (LvTARG(TARG)) |
1138 | SvREFCNT_dec(LvTARG(TARG)); |
800e9ae0 |
1139 | LvTARG(TARG) = SvREFCNT_inc(keys); |
6ff81951 |
1140 | } |
85581909 |
1141 | PUSHs(TARG); |
1142 | RETURN; |
1143 | } |
1144 | |
33c27489 |
1145 | if (! SvTIED_mg((SV*)keys, 'P')) |
800e9ae0 |
1146 | i = HvKEYS(keys); |
463ee0b2 |
1147 | else { |
1148 | i = 0; |
463ee0b2 |
1149 | /*SUPPRESS 560*/ |
800e9ae0 |
1150 | while (hv_iternext(keys)) i++; |
463ee0b2 |
1151 | } |
1152 | PUSHi( i ); |
1153 | RETURN; |
1154 | } |
1155 | |
8ed4b672 |
1156 | EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues)); |
463ee0b2 |
1157 | |
463ee0b2 |
1158 | PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */ |
155aba94 |
1159 | while ((entry = hv_iternext(keys))) { |
463ee0b2 |
1160 | SPAGAIN; |
6bfc225d |
1161 | if (dokeys) |
8c2cee6f |
1162 | XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */ |
463ee0b2 |
1163 | if (dovalues) { |
463ee0b2 |
1164 | PUTBACK; |
b6429b1b |
1165 | tmpstr = realhv ? |
1166 | hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry); |
cea2e8a9 |
1167 | DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu", |
46fc3d4c |
1168 | (unsigned long)HeHASH(entry), |
800e9ae0 |
1169 | HvMAX(keys)+1, |
1170 | (unsigned long)(HeHASH(entry) & HvMAX(keys)))); |
463ee0b2 |
1171 | SPAGAIN; |
46fc3d4c |
1172 | XPUSHs(tmpstr); |
463ee0b2 |
1173 | } |
1174 | PUTBACK; |
1175 | } |
1176 | return NORMAL; |
1177 | } |
4e35701f |
1178 | |