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 | { |
11343788 |
39 | dTHR; |
4757a243 |
40 | U8 *s; |
b250498f |
41 | U8 *d; |
4757a243 |
42 | U8 *send; |
b250498f |
43 | U8 *dstart; |
4757a243 |
44 | I32 matches = 0; |
b250498f |
45 | I32 sutf = SvUTF8(sv); |
463ee0b2 |
46 | STRLEN len; |
4757a243 |
47 | short *tbl; |
48 | I32 ch; |
79072805 |
49 | |
4757a243 |
50 | tbl = (short*)cPVOP->op_pv; |
51 | if (!tbl) |
cea2e8a9 |
52 | Perl_croak(aTHX_ "panic: do_trans"); |
a0ed51b3 |
53 | |
4757a243 |
54 | s = (U8*)SvPV(sv, len); |
55 | send = s + len; |
56 | |
b250498f |
57 | /* First, take care of non-UTF8 input strings, because they're easy */ |
58 | if (!sutf) { |
01ec43d0 |
59 | while (s < send) { |
036b4402 |
60 | if ((ch = tbl[*s]) >= 0) { |
01ec43d0 |
61 | matches++; |
62 | *s++ = ch; |
63 | } |
64 | else |
65 | s++; |
66 | } |
67 | SvSETMAGIC(sv); |
b250498f |
68 | return matches; |
69 | } |
4757a243 |
70 | |
b250498f |
71 | /* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */ |
72 | Newz(0, d, len*2+1, U8); |
73 | dstart = d; |
74 | while (s < send) { |
ba210ebe |
75 | STRLEN ulen; |
b250498f |
76 | short c; |
77 | |
78 | ulen = 1; |
79 | /* Need to check this, otherwise 128..255 won't match */ |
dcad2880 |
80 | c = utf8_to_uv(s, send - s, &ulen, 0); |
b250498f |
81 | if (c < 0x100 && (ch = tbl[(short)c]) >= 0) { |
82 | matches++; |
8e84507e |
83 | if (ch < 0x80) |
b250498f |
84 | *d++ = ch; |
8e84507e |
85 | else |
b250498f |
86 | d = uv_to_utf8(d,ch); |
87 | s += ulen; |
01ec43d0 |
88 | } |
89 | else { /* No match -> copy */ |
b250498f |
90 | while (ulen--) |
91 | *d++ = *s++; |
92 | } |
93 | } |
01ec43d0 |
94 | *d = '\0'; |
be3174d2 |
95 | sv_setpvn(sv, (const char*)dstart, d - dstart); |
fdbb8cbd |
96 | Safefree(dstart); |
b250498f |
97 | SvUTF8_on(sv); |
b250498f |
98 | SvSETMAGIC(sv); |
4757a243 |
99 | return matches; |
100 | } |
101 | |
942e002e |
102 | STATIC I32 |
036b4402 |
103 | S_do_trans_count(pTHX_ SV *sv)/* SPC - OK */ |
4757a243 |
104 | { |
105 | dTHR; |
106 | U8 *s; |
107 | U8 *send; |
108 | I32 matches = 0; |
036b4402 |
109 | I32 hasutf = SvUTF8(sv); |
4757a243 |
110 | STRLEN len; |
111 | short *tbl; |
112 | |
113 | tbl = (short*)cPVOP->op_pv; |
114 | if (!tbl) |
cea2e8a9 |
115 | Perl_croak(aTHX_ "panic: do_trans"); |
4757a243 |
116 | |
117 | s = (U8*)SvPV(sv, len); |
118 | send = s + len; |
119 | |
120 | while (s < send) { |
036b4402 |
121 | if (hasutf && *s & 0x80) |
01ec43d0 |
122 | s += UTF8SKIP(s); |
036b4402 |
123 | else { |
b250498f |
124 | UV c; |
ba210ebe |
125 | STRLEN ulen; |
b250498f |
126 | ulen = 1; |
127 | if (hasutf) |
dcad2880 |
128 | c = utf8_to_uv(s, send - s, &ulen, 0); |
b250498f |
129 | else |
130 | c = *s; |
131 | if (c < 0x100 && tbl[c] >= 0) |
036b4402 |
132 | matches++; |
01ec43d0 |
133 | s += ulen; |
036b4402 |
134 | } |
4757a243 |
135 | } |
136 | |
137 | return matches; |
138 | } |
139 | |
942e002e |
140 | STATIC I32 |
b250498f |
141 | S_do_trans_complex(pTHX_ SV *sv)/* SPC - NOT OK */ |
4757a243 |
142 | { |
143 | dTHR; |
144 | U8 *s; |
145 | U8 *send; |
146 | U8 *d; |
036b4402 |
147 | I32 hasutf = SvUTF8(sv); |
4757a243 |
148 | I32 matches = 0; |
149 | STRLEN len; |
150 | short *tbl; |
151 | I32 ch; |
152 | |
153 | tbl = (short*)cPVOP->op_pv; |
154 | if (!tbl) |
cea2e8a9 |
155 | Perl_croak(aTHX_ "panic: do_trans"); |
4757a243 |
156 | |
157 | s = (U8*)SvPV(sv, len); |
158 | send = s + len; |
159 | |
160 | d = s; |
161 | if (PL_op->op_private & OPpTRANS_SQUASH) { |
162 | U8* p = send; |
163 | |
164 | while (s < send) { |
036b4402 |
165 | if (hasutf && *s & 0x80) |
01ec43d0 |
166 | s += UTF8SKIP(s); |
036b4402 |
167 | else { |
168 | if ((ch = tbl[*s]) >= 0) { |
169 | *d = ch; |
170 | matches++; |
171 | if (p == d - 1 && *p == *d) |
172 | matches--; |
173 | else |
174 | p = d++; |
175 | } |
01ec43d0 |
176 | else if (ch == -1) /* -1 is unmapped character */ |
036b4402 |
177 | *d++ = *s; /* -2 is delete character */ |
178 | s++; |
179 | } |
a0ed51b3 |
180 | } |
4757a243 |
181 | } |
182 | else { |
183 | while (s < send) { |
036b4402 |
184 | if (hasutf && *s & 0x80) |
01ec43d0 |
185 | s += UTF8SKIP(s); |
036b4402 |
186 | else { |
187 | if ((ch = tbl[*s]) >= 0) { |
188 | *d = ch; |
189 | matches++; |
190 | d++; |
191 | } |
01ec43d0 |
192 | else if (ch == -1) /* -1 is unmapped character */ |
036b4402 |
193 | *d++ = *s; /* -2 is delete character */ |
194 | s++; |
195 | } |
5d06d08e |
196 | } |
4757a243 |
197 | } |
01ec43d0 |
198 | matches += send - d; /* account for disappeared chars */ |
4757a243 |
199 | *d = '\0'; |
200 | SvCUR_set(sv, d - (U8*)SvPVX(sv)); |
201 | SvSETMAGIC(sv); |
202 | |
203 | return matches; |
204 | } |
205 | |
942e002e |
206 | STATIC I32 |
036b4402 |
207 | S_do_trans_simple_utf8(pTHX_ SV *sv)/* SPC - OK */ |
4757a243 |
208 | { |
209 | dTHR; |
210 | U8 *s; |
211 | U8 *send; |
212 | U8 *d; |
036b4402 |
213 | U8 *start; |
214 | U8 *dstart; |
4757a243 |
215 | I32 matches = 0; |
216 | STRLEN len; |
217 | |
218 | SV* rv = (SV*)cSVOP->op_sv; |
219 | HV* hv = (HV*)SvRV(rv); |
220 | SV** svp = hv_fetch(hv, "NONE", 4, FALSE); |
221 | UV none = svp ? SvUV(*svp) : 0x7fffffff; |
222 | UV extra = none + 1; |
223 | UV final; |
224 | UV uv; |
8e84507e |
225 | I32 isutf; |
036b4402 |
226 | I32 howmany; |
4757a243 |
227 | |
036b4402 |
228 | isutf = SvUTF8(sv); |
4757a243 |
229 | s = (U8*)SvPV(sv, len); |
230 | send = s + len; |
036b4402 |
231 | start = s; |
4757a243 |
232 | |
233 | svp = hv_fetch(hv, "FINAL", 5, FALSE); |
234 | if (svp) |
235 | final = SvUV(*svp); |
236 | |
036b4402 |
237 | /* d needs to be bigger than s, in case e.g. upgrading is required */ |
238 | Newz(0, d, len*2+1, U8); |
239 | dstart = d; |
4757a243 |
240 | while (s < send) { |
241 | if ((uv = swash_fetch(rv, s)) < none) { |
242 | s += UTF8SKIP(s); |
243 | matches++; |
01ec43d0 |
244 | if ((uv & 0x80) && !isutf++) |
075321c3 |
245 | HALF_UTF8_UPGRADE(dstart,d); |
4757a243 |
246 | d = uv_to_utf8(d, uv); |
247 | } |
248 | else if (uv == none) { |
249 | int i; |
01ec43d0 |
250 | i = UTF8SKIP(s); |
b250498f |
251 | if (i > 1 && !isutf++) |
075321c3 |
252 | HALF_UTF8_UPGRADE(dstart,d); |
036b4402 |
253 | while(i--) |
075321c3 |
254 | *d++ = *s++; |
4757a243 |
255 | } |
256 | else if (uv == extra) { |
036b4402 |
257 | int i; |
01ec43d0 |
258 | i = UTF8SKIP(s); |
036b4402 |
259 | s += i; |
4757a243 |
260 | matches++; |
8e84507e |
261 | if (i > 1 && !isutf++) |
075321c3 |
262 | HALF_UTF8_UPGRADE(dstart,d); |
4757a243 |
263 | d = uv_to_utf8(d, final); |
264 | } |
265 | else |
266 | s += UTF8SKIP(s); |
267 | } |
268 | *d = '\0'; |
be3174d2 |
269 | sv_setpvn(sv, (const char*)dstart, d - dstart); |
4757a243 |
270 | SvSETMAGIC(sv); |
036b4402 |
271 | if (isutf) |
272 | SvUTF8_on(sv); |
4757a243 |
273 | |
274 | return matches; |
275 | } |
276 | |
942e002e |
277 | STATIC I32 |
036b4402 |
278 | S_do_trans_count_utf8(pTHX_ SV *sv)/* SPC - OK */ |
4757a243 |
279 | { |
280 | dTHR; |
281 | U8 *s; |
282 | U8 *send; |
283 | I32 matches = 0; |
284 | STRLEN len; |
285 | |
286 | SV* rv = (SV*)cSVOP->op_sv; |
287 | HV* hv = (HV*)SvRV(rv); |
288 | SV** svp = hv_fetch(hv, "NONE", 4, FALSE); |
289 | UV none = svp ? SvUV(*svp) : 0x7fffffff; |
290 | UV uv; |
291 | |
292 | s = (U8*)SvPV(sv, len); |
036b4402 |
293 | if (!SvUTF8(sv)) |
294 | s = bytes_to_utf8(s, &len); |
4757a243 |
295 | send = s + len; |
296 | |
297 | while (s < send) { |
834a4ddd |
298 | if ((uv = swash_fetch(rv, s)) < none) |
4757a243 |
299 | matches++; |
834a4ddd |
300 | s += UTF8SKIP(s); |
4757a243 |
301 | } |
302 | |
303 | return matches; |
304 | } |
305 | |
942e002e |
306 | STATIC I32 |
036b4402 |
307 | S_do_trans_complex_utf8(pTHX_ SV *sv) /* SPC - NOT OK */ |
4757a243 |
308 | { |
309 | dTHR; |
310 | U8 *s; |
311 | U8 *send; |
312 | U8 *d; |
313 | I32 matches = 0; |
314 | I32 squash = PL_op->op_private & OPpTRANS_SQUASH; |
4757a243 |
315 | I32 del = PL_op->op_private & OPpTRANS_DELETE; |
316 | SV* rv = (SV*)cSVOP->op_sv; |
317 | HV* hv = (HV*)SvRV(rv); |
318 | SV** svp = hv_fetch(hv, "NONE", 4, FALSE); |
319 | UV none = svp ? SvUV(*svp) : 0x7fffffff; |
320 | UV extra = none + 1; |
321 | UV final; |
322 | UV uv; |
323 | STRLEN len; |
324 | U8 *dst; |
b250498f |
325 | I32 isutf = SvUTF8(sv); |
4757a243 |
326 | |
327 | s = (U8*)SvPV(sv, len); |
328 | send = s + len; |
329 | |
330 | svp = hv_fetch(hv, "FINAL", 5, FALSE); |
331 | if (svp) |
332 | final = SvUV(*svp); |
333 | |
b250498f |
334 | Newz(0, d, len*2+1, U8); |
4757a243 |
335 | dst = d; |
4757a243 |
336 | |
337 | if (squash) { |
338 | UV puv = 0xfeedface; |
339 | while (s < send) { |
8e84507e |
340 | if (SvUTF8(sv)) |
4757a243 |
341 | uv = swash_fetch(rv, s); |
a0ed51b3 |
342 | else { |
4757a243 |
343 | U8 tmpbuf[2]; |
344 | uv = *s++; |
345 | if (uv < 0x80) |
346 | tmpbuf[0] = uv; |
347 | else { |
348 | tmpbuf[0] = (( uv >> 6) | 0xc0); |
349 | tmpbuf[1] = (( uv & 0x3f) | 0x80); |
350 | } |
351 | uv = swash_fetch(rv, tmpbuf); |
352 | } |
b250498f |
353 | |
4757a243 |
354 | if (uv < none) { |
355 | matches++; |
356 | if (uv != puv) { |
8e84507e |
357 | if ((uv & 0x80) && !isutf++) |
075321c3 |
358 | HALF_UTF8_UPGRADE(dst,d); |
01ec43d0 |
359 | d = uv_to_utf8(d, uv); |
4757a243 |
360 | puv = uv; |
361 | } |
075321c3 |
362 | s += UTF8SKIP(s); |
4757a243 |
363 | continue; |
364 | } |
365 | else if (uv == none) { /* "none" is unmapped character */ |
ba210ebe |
366 | STRLEN ulen; |
dcad2880 |
367 | *d++ = (U8)utf8_to_uv(s, send - s, &ulen, 0); |
01ec43d0 |
368 | s += ulen; |
4757a243 |
369 | puv = 0xfeedface; |
370 | continue; |
a0ed51b3 |
371 | } |
4757a243 |
372 | else if (uv == extra && !del) { |
373 | matches++; |
374 | if (uv != puv) { |
01ec43d0 |
375 | d = uv_to_utf8(d, final); |
4757a243 |
376 | puv = final; |
377 | } |
01ec43d0 |
378 | s += UTF8SKIP(s); |
4757a243 |
379 | continue; |
380 | } |
01ec43d0 |
381 | matches++; /* "none+1" is delete character */ |
382 | s += UTF8SKIP(s); |
a0ed51b3 |
383 | } |
79072805 |
384 | } |
385 | else { |
4757a243 |
386 | while (s < send) { |
8e84507e |
387 | if (SvUTF8(sv)) |
4757a243 |
388 | uv = swash_fetch(rv, s); |
4757a243 |
389 | else { |
390 | U8 tmpbuf[2]; |
391 | uv = *s++; |
392 | if (uv < 0x80) |
393 | tmpbuf[0] = uv; |
394 | else { |
395 | tmpbuf[0] = (( uv >> 6) | 0xc0); |
396 | tmpbuf[1] = (( uv & 0x3f) | 0x80); |
a0ed51b3 |
397 | } |
4757a243 |
398 | uv = swash_fetch(rv, tmpbuf); |
a0ed51b3 |
399 | } |
4757a243 |
400 | if (uv < none) { |
401 | matches++; |
01ec43d0 |
402 | d = uv_to_utf8(d, uv); |
403 | s += UTF8SKIP(s); |
4757a243 |
404 | continue; |
a0ed51b3 |
405 | } |
4757a243 |
406 | else if (uv == none) { /* "none" is unmapped character */ |
ba210ebe |
407 | STRLEN ulen; |
dcad2880 |
408 | *d++ = (U8)utf8_to_uv(s, send - s, &ulen, 0); |
01ec43d0 |
409 | s += ulen; |
4757a243 |
410 | continue; |
79072805 |
411 | } |
4757a243 |
412 | else if (uv == extra && !del) { |
413 | matches++; |
01ec43d0 |
414 | d = uv_to_utf8(d, final); |
415 | s += UTF8SKIP(s); |
4757a243 |
416 | continue; |
417 | } |
01ec43d0 |
418 | matches++; /* "none+1" is delete character */ |
419 | s += UTF8SKIP(s); |
79072805 |
420 | } |
4757a243 |
421 | } |
422 | if (dst) |
423 | sv_usepvn(sv, (char*)dst, d - dst); |
424 | else { |
425 | *d = '\0'; |
426 | SvCUR_set(sv, d - (U8*)SvPVX(sv)); |
427 | } |
428 | SvSETMAGIC(sv); |
429 | |
430 | return matches; |
431 | } |
432 | |
433 | I32 |
864dbfa3 |
434 | Perl_do_trans(pTHX_ SV *sv) |
4757a243 |
435 | { |
46124e9e |
436 | dTHR; |
4757a243 |
437 | STRLEN len; |
8e84507e |
438 | I32 hasutf = (PL_op->op_private & |
036b4402 |
439 | (OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)); |
4757a243 |
440 | |
441 | if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) |
cea2e8a9 |
442 | Perl_croak(aTHX_ PL_no_modify); |
4757a243 |
443 | |
444 | (void)SvPV(sv, len); |
445 | if (!len) |
446 | return 0; |
447 | if (!SvPOKp(sv)) |
448 | (void)SvPV_force(sv, len); |
2de7b02f |
449 | if (!(PL_op->op_private & OPpTRANS_IDENTICAL)) |
450 | (void)SvPOK_only_UTF8(sv); |
4757a243 |
451 | |
cea2e8a9 |
452 | DEBUG_t( Perl_deb(aTHX_ "2.TBL\n")); |
4757a243 |
453 | |
036b4402 |
454 | switch (PL_op->op_private & ~hasutf & 63) { |
4757a243 |
455 | case 0: |
01ec43d0 |
456 | if (hasutf) |
457 | return do_trans_simple_utf8(sv); |
458 | else |
459 | return do_trans_simple(sv); |
4757a243 |
460 | |
461 | case OPpTRANS_IDENTICAL: |
01ec43d0 |
462 | if (hasutf) |
463 | return do_trans_count_utf8(sv); |
464 | else |
465 | return do_trans_count(sv); |
4757a243 |
466 | |
467 | default: |
01ec43d0 |
468 | if (hasutf) |
036b4402 |
469 | return do_trans_complex_utf8(sv); |
4757a243 |
470 | else |
036b4402 |
471 | return do_trans_complex(sv); |
79072805 |
472 | } |
79072805 |
473 | } |
474 | |
475 | void |
864dbfa3 |
476 | Perl_do_join(pTHX_ register SV *sv, SV *del, register SV **mark, register SV **sp) |
79072805 |
477 | { |
478 | SV **oldmark = mark; |
479 | register I32 items = sp - mark; |
79072805 |
480 | register STRLEN len; |
463ee0b2 |
481 | STRLEN delimlen; |
482 | register char *delim = SvPV(del, delimlen); |
483 | STRLEN tmplen; |
79072805 |
484 | |
485 | mark++; |
486 | len = (items > 0 ? (delimlen * (items - 1) ) : 0); |
07f14f54 |
487 | (void)SvUPGRADE(sv, SVt_PV); |
79072805 |
488 | if (SvLEN(sv) < len + items) { /* current length is way too short */ |
489 | while (items-- > 0) { |
1426bbf4 |
490 | if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) { |
463ee0b2 |
491 | SvPV(*mark, tmplen); |
492 | len += tmplen; |
79072805 |
493 | } |
494 | mark++; |
495 | } |
496 | SvGROW(sv, len + 1); /* so try to pre-extend */ |
497 | |
498 | mark = oldmark; |
db7c17d7 |
499 | items = sp - mark; |
79072805 |
500 | ++mark; |
501 | } |
502 | |
463ee0b2 |
503 | if (items-- > 0) { |
8990e307 |
504 | char *s; |
505 | |
92d29cee |
506 | sv_setpv(sv, ""); |
507 | if (*mark) |
508 | sv_catsv(sv, *mark); |
463ee0b2 |
509 | mark++; |
510 | } |
79072805 |
511 | else |
512 | sv_setpv(sv,""); |
513 | len = delimlen; |
514 | if (len) { |
515 | for (; items > 0; items--,mark++) { |
516 | sv_catpvn(sv,delim,len); |
517 | sv_catsv(sv,*mark); |
518 | } |
519 | } |
520 | else { |
521 | for (; items > 0; items--,mark++) |
522 | sv_catsv(sv,*mark); |
523 | } |
524 | SvSETMAGIC(sv); |
525 | } |
526 | |
527 | void |
864dbfa3 |
528 | Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg) |
79072805 |
529 | { |
46fc3d4c |
530 | STRLEN patlen; |
531 | char *pat = SvPV(*sarg, patlen); |
532 | bool do_taint = FALSE; |
533 | |
534 | sv_vsetpvfn(sv, pat, patlen, Null(va_list*), sarg + 1, len - 1, &do_taint); |
79072805 |
535 | SvSETMAGIC(sv); |
46fc3d4c |
536 | if (do_taint) |
537 | SvTAINTED_on(sv); |
79072805 |
538 | } |
539 | |
33b45480 |
540 | /* currently converts input to bytes if possible, but doesn't sweat failure */ |
81e118e0 |
541 | UV |
542 | Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) |
543 | { |
544 | STRLEN srclen, len; |
545 | unsigned char *s = (unsigned char *) SvPV(sv, srclen); |
546 | UV retnum = 0; |
547 | |
a50d7633 |
548 | if (offset < 0) |
81e118e0 |
549 | return retnum; |
8e84507e |
550 | if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
a50d7633 |
551 | Perl_croak(aTHX_ "Illegal number of bits in vec"); |
246fae53 |
552 | |
dcad2880 |
553 | if (SvUTF8(sv)) |
33b45480 |
554 | (void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE); |
246fae53 |
555 | |
81e118e0 |
556 | offset *= size; /* turn into bit offset */ |
557 | len = (offset + size + 7) / 8; /* required number of bytes */ |
558 | if (len > srclen) { |
559 | if (size <= 8) |
560 | retnum = 0; |
561 | else { |
562 | offset >>= 3; /* turn into byte offset */ |
563 | if (size == 16) { |
564 | if (offset >= srclen) |
565 | retnum = 0; |
566 | else |
628e1a40 |
567 | retnum = (UV) s[offset] << 8; |
81e118e0 |
568 | } |
569 | else if (size == 32) { |
570 | if (offset >= srclen) |
571 | retnum = 0; |
572 | else if (offset + 1 >= srclen) |
573 | retnum = |
574 | ((UV) s[offset ] << 24); |
575 | else if (offset + 2 >= srclen) |
576 | retnum = |
577 | ((UV) s[offset ] << 24) + |
578 | ((UV) s[offset + 1] << 16); |
579 | else |
580 | retnum = |
581 | ((UV) s[offset ] << 24) + |
582 | ((UV) s[offset + 1] << 16) + |
583 | ( s[offset + 2] << 8); |
584 | } |
d7d93a81 |
585 | #ifdef UV_IS_QUAD |
c5a0f51a |
586 | else if (size == 64) { |
587 | dTHR; |
588 | if (ckWARN(WARN_PORTABLE)) |
589 | Perl_warner(aTHX_ WARN_PORTABLE, |
590 | "Bit vector size > 32 non-portable"); |
591 | if (offset >= srclen) |
592 | retnum = 0; |
593 | else if (offset + 1 >= srclen) |
594 | retnum = |
595 | (UV) s[offset ] << 56; |
596 | else if (offset + 2 >= srclen) |
597 | retnum = |
598 | ((UV) s[offset ] << 56) + |
599 | ((UV) s[offset + 1] << 48); |
600 | else if (offset + 3 >= srclen) |
601 | retnum = |
602 | ((UV) s[offset ] << 56) + |
603 | ((UV) s[offset + 1] << 48) + |
604 | ((UV) s[offset + 2] << 40); |
605 | else if (offset + 4 >= srclen) |
606 | retnum = |
607 | ((UV) s[offset ] << 56) + |
608 | ((UV) s[offset + 1] << 48) + |
609 | ((UV) s[offset + 2] << 40) + |
610 | ((UV) s[offset + 3] << 32); |
611 | else if (offset + 5 >= srclen) |
612 | retnum = |
613 | ((UV) s[offset ] << 56) + |
614 | ((UV) s[offset + 1] << 48) + |
615 | ((UV) s[offset + 2] << 40) + |
616 | ((UV) s[offset + 3] << 32) + |
617 | ( s[offset + 4] << 24); |
618 | else if (offset + 6 >= srclen) |
619 | retnum = |
620 | ((UV) s[offset ] << 56) + |
621 | ((UV) s[offset + 1] << 48) + |
622 | ((UV) s[offset + 2] << 40) + |
623 | ((UV) s[offset + 3] << 32) + |
624 | ((UV) s[offset + 4] << 24) + |
625 | ((UV) s[offset + 5] << 16); |
626 | else |
8e84507e |
627 | retnum = |
c5a0f51a |
628 | ((UV) s[offset ] << 56) + |
629 | ((UV) s[offset + 1] << 48) + |
630 | ((UV) s[offset + 2] << 40) + |
631 | ((UV) s[offset + 3] << 32) + |
632 | ((UV) s[offset + 4] << 24) + |
633 | ((UV) s[offset + 5] << 16) + |
628e1a40 |
634 | ( s[offset + 6] << 8); |
c5a0f51a |
635 | } |
636 | #endif |
81e118e0 |
637 | } |
638 | } |
639 | else if (size < 8) |
640 | retnum = (s[offset >> 3] >> (offset & 7)) & ((1 << size) - 1); |
641 | else { |
642 | offset >>= 3; /* turn into byte offset */ |
643 | if (size == 8) |
644 | retnum = s[offset]; |
645 | else if (size == 16) |
646 | retnum = |
628e1a40 |
647 | ((UV) s[offset] << 8) + |
81e118e0 |
648 | s[offset + 1]; |
649 | else if (size == 32) |
650 | retnum = |
651 | ((UV) s[offset ] << 24) + |
652 | ((UV) s[offset + 1] << 16) + |
653 | ( s[offset + 2] << 8) + |
654 | s[offset + 3]; |
d7d93a81 |
655 | #ifdef UV_IS_QUAD |
c5a0f51a |
656 | else if (size == 64) { |
657 | dTHR; |
658 | if (ckWARN(WARN_PORTABLE)) |
659 | Perl_warner(aTHX_ WARN_PORTABLE, |
660 | "Bit vector size > 32 non-portable"); |
661 | retnum = |
662 | ((UV) s[offset ] << 56) + |
663 | ((UV) s[offset + 1] << 48) + |
664 | ((UV) s[offset + 2] << 40) + |
665 | ((UV) s[offset + 3] << 32) + |
666 | ((UV) s[offset + 4] << 24) + |
667 | ((UV) s[offset + 5] << 16) + |
628e1a40 |
668 | ( s[offset + 6] << 8) + |
c5a0f51a |
669 | s[offset + 7]; |
670 | } |
671 | #endif |
81e118e0 |
672 | } |
673 | |
674 | return retnum; |
675 | } |
676 | |
33b45480 |
677 | /* currently converts input to bytes if possible but doesn't sweat failures, |
678 | * although it does ensure that the string it clobbers is not marked as |
679 | * utf8-valid any more |
680 | */ |
79072805 |
681 | void |
864dbfa3 |
682 | Perl_do_vecset(pTHX_ SV *sv) |
79072805 |
683 | { |
684 | SV *targ = LvTARG(sv); |
685 | register I32 offset; |
686 | register I32 size; |
8990e307 |
687 | register unsigned char *s; |
81e118e0 |
688 | register UV lval; |
79072805 |
689 | I32 mask; |
a0d0e21e |
690 | STRLEN targlen; |
691 | STRLEN len; |
79072805 |
692 | |
8990e307 |
693 | if (!targ) |
694 | return; |
a0d0e21e |
695 | s = (unsigned char*)SvPV_force(targ, targlen); |
246fae53 |
696 | if (SvUTF8(targ)) { |
33b45480 |
697 | /* This is handled by the SvPOK_only below... |
698 | if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE)) |
699 | SvUTF8_off(targ); |
700 | */ |
701 | (void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE); |
246fae53 |
702 | } |
703 | |
4ebbc975 |
704 | (void)SvPOK_only(targ); |
81e118e0 |
705 | lval = SvUV(sv); |
79072805 |
706 | offset = LvTARGOFF(sv); |
fe58ced6 |
707 | if (offset < 0) |
708 | Perl_croak(aTHX_ "Assigning to negative offset in vec"); |
79072805 |
709 | size = LvTARGLEN(sv); |
8e84507e |
710 | if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
a50d7633 |
711 | Perl_croak(aTHX_ "Illegal number of bits in vec"); |
8e84507e |
712 | |
81e118e0 |
713 | offset *= size; /* turn into bit offset */ |
714 | len = (offset + size + 7) / 8; /* required number of bytes */ |
a0d0e21e |
715 | if (len > targlen) { |
716 | s = (unsigned char*)SvGROW(targ, len + 1); |
12ae5dfc |
717 | (void)memzero((char *)(s + targlen), len - targlen + 1); |
a0d0e21e |
718 | SvCUR_set(targ, len); |
719 | } |
8e84507e |
720 | |
79072805 |
721 | if (size < 8) { |
722 | mask = (1 << size) - 1; |
723 | size = offset & 7; |
724 | lval &= mask; |
81e118e0 |
725 | offset >>= 3; /* turn into byte offset */ |
79072805 |
726 | s[offset] &= ~(mask << size); |
727 | s[offset] |= lval << size; |
728 | } |
729 | else { |
81e118e0 |
730 | offset >>= 3; /* turn into byte offset */ |
79072805 |
731 | if (size == 8) |
c5a0f51a |
732 | s[offset ] = lval & 0xff; |
79072805 |
733 | else if (size == 16) { |
c5a0f51a |
734 | s[offset ] = (lval >> 8) & 0xff; |
735 | s[offset+1] = lval & 0xff; |
79072805 |
736 | } |
737 | else if (size == 32) { |
c5a0f51a |
738 | s[offset ] = (lval >> 24) & 0xff; |
739 | s[offset+1] = (lval >> 16) & 0xff; |
740 | s[offset+2] = (lval >> 8) & 0xff; |
741 | s[offset+3] = lval & 0xff; |
742 | } |
d7d93a81 |
743 | #ifdef UV_IS_QUAD |
c5a0f51a |
744 | else if (size == 64) { |
745 | dTHR; |
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; |
c485e607 |
768 | dTHR; |
8e84507e |
769 | |
79072805 |
770 | if (SvTYPE(sv) == SVt_PVAV) { |
a0d0e21e |
771 | register I32 i; |
772 | I32 max; |
773 | AV* av = (AV*)sv; |
774 | max = AvFILL(av); |
775 | for (i = 0; i <= max; i++) { |
776 | sv = (SV*)av_fetch(av, i, FALSE); |
3280af22 |
777 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) |
a0d0e21e |
778 | do_chop(astr, sv); |
779 | } |
780 | return; |
79072805 |
781 | } |
aa854799 |
782 | else if (SvTYPE(sv) == SVt_PVHV) { |
a0d0e21e |
783 | HV* hv = (HV*)sv; |
784 | HE* entry; |
785 | (void)hv_iterinit(hv); |
786 | /*SUPPRESS 560*/ |
155aba94 |
787 | while ((entry = hv_iternext(hv))) |
a0d0e21e |
788 | do_chop(astr,hv_iterval(hv,entry)); |
789 | return; |
79072805 |
790 | } |
aa854799 |
791 | else if (SvREADONLY(sv)) |
cea2e8a9 |
792 | Perl_croak(aTHX_ PL_no_modify); |
a0d0e21e |
793 | s = SvPV(sv, len); |
748a9306 |
794 | if (len && !SvPOK(sv)) |
a0d0e21e |
795 | s = SvPV_force(sv, len); |
7e2040f0 |
796 | if (DO_UTF8(sv)) { |
a0ed51b3 |
797 | if (s && len) { |
798 | char *send = s + len; |
799 | char *start = s; |
800 | s = send - 1; |
801 | while ((*s & 0xc0) == 0x80) |
802 | --s; |
0453d815 |
803 | if (UTF8SKIP(s) != send - s && ckWARN_d(WARN_UTF8)) |
804 | Perl_warner(aTHX_ WARN_UTF8, "Malformed UTF-8 character"); |
a0ed51b3 |
805 | sv_setpvn(astr, s, send - s); |
806 | *s = '\0'; |
807 | SvCUR_set(sv, s - start); |
808 | SvNIOK_off(sv); |
7e2040f0 |
809 | SvUTF8_on(astr); |
a0ed51b3 |
810 | } |
811 | else |
812 | sv_setpvn(astr, "", 0); |
813 | } |
7e2040f0 |
814 | else if (s && len) { |
a0d0e21e |
815 | s += --len; |
816 | sv_setpvn(astr, s, 1); |
817 | *s = '\0'; |
818 | SvCUR_set(sv, len); |
2c19a612 |
819 | SvUTF8_off(sv); |
a0d0e21e |
820 | SvNIOK_off(sv); |
79072805 |
821 | } |
822 | else |
a0d0e21e |
823 | sv_setpvn(astr, "", 0); |
824 | SvSETMAGIC(sv); |
7e2040f0 |
825 | } |
a0d0e21e |
826 | |
827 | I32 |
864dbfa3 |
828 | Perl_do_chomp(pTHX_ register SV *sv) |
a0d0e21e |
829 | { |
aeea060c |
830 | dTHR; |
c07a80fd |
831 | register I32 count; |
a0d0e21e |
832 | STRLEN len; |
833 | char *s; |
c07a80fd |
834 | |
3280af22 |
835 | if (RsSNARF(PL_rs)) |
c07a80fd |
836 | return 0; |
4c5a6083 |
837 | if (RsRECORD(PL_rs)) |
838 | return 0; |
c07a80fd |
839 | count = 0; |
a0d0e21e |
840 | if (SvTYPE(sv) == SVt_PVAV) { |
841 | register I32 i; |
842 | I32 max; |
843 | AV* av = (AV*)sv; |
844 | max = AvFILL(av); |
845 | for (i = 0; i <= max; i++) { |
846 | sv = (SV*)av_fetch(av, i, FALSE); |
3280af22 |
847 | if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) |
a0d0e21e |
848 | count += do_chomp(sv); |
849 | } |
850 | return count; |
851 | } |
aa854799 |
852 | else if (SvTYPE(sv) == SVt_PVHV) { |
a0d0e21e |
853 | HV* hv = (HV*)sv; |
854 | HE* entry; |
855 | (void)hv_iterinit(hv); |
856 | /*SUPPRESS 560*/ |
155aba94 |
857 | while ((entry = hv_iternext(hv))) |
a0d0e21e |
858 | count += do_chomp(hv_iterval(hv,entry)); |
859 | return count; |
860 | } |
aa854799 |
861 | else if (SvREADONLY(sv)) |
cea2e8a9 |
862 | Perl_croak(aTHX_ PL_no_modify); |
a0d0e21e |
863 | s = SvPV(sv, len); |
864 | if (len && !SvPOKp(sv)) |
865 | s = SvPV_force(sv, len); |
866 | if (s && len) { |
867 | s += --len; |
3280af22 |
868 | if (RsPARA(PL_rs)) { |
a0d0e21e |
869 | if (*s != '\n') |
870 | goto nope; |
871 | ++count; |
872 | while (len && s[-1] == '\n') { |
873 | --len; |
874 | --s; |
875 | ++count; |
876 | } |
877 | } |
a0d0e21e |
878 | else { |
c07a80fd |
879 | STRLEN rslen; |
3280af22 |
880 | char *rsptr = SvPV(PL_rs, rslen); |
c07a80fd |
881 | if (rslen == 1) { |
882 | if (*s != *rsptr) |
883 | goto nope; |
884 | ++count; |
885 | } |
886 | else { |
8c2cee6f |
887 | if (len < rslen - 1) |
c07a80fd |
888 | goto nope; |
889 | len -= rslen - 1; |
890 | s -= rslen - 1; |
36477c24 |
891 | if (memNE(s, rsptr, rslen)) |
c07a80fd |
892 | goto nope; |
893 | count += rslen; |
894 | } |
a0d0e21e |
895 | } |
a0d0e21e |
896 | *s = '\0'; |
897 | SvCUR_set(sv, len); |
898 | SvNIOK_off(sv); |
899 | } |
900 | nope: |
901 | SvSETMAGIC(sv); |
902 | return count; |
8e84507e |
903 | } |
79072805 |
904 | |
905 | void |
864dbfa3 |
906 | Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) |
79072805 |
907 | { |
aeea060c |
908 | dTHR; /* just for taint */ |
79072805 |
909 | #ifdef LIBERAL |
910 | register long *dl; |
911 | register long *ll; |
912 | register long *rl; |
913 | #endif |
914 | register char *dc; |
463ee0b2 |
915 | STRLEN leftlen; |
916 | STRLEN rightlen; |
7a4c00b4 |
917 | register char *lc; |
918 | register char *rc; |
79072805 |
919 | register I32 len; |
a0d0e21e |
920 | I32 lensave; |
7a4c00b4 |
921 | char *lsave; |
922 | char *rsave; |
0c57e439 |
923 | bool left_utf = DO_UTF8(left); |
924 | bool right_utf = DO_UTF8(right); |
c9b3c8d0 |
925 | I32 needlen; |
0c57e439 |
926 | |
927 | if (left_utf && !right_utf) |
928 | sv_utf8_upgrade(right); |
a1ca4561 |
929 | else if (!left_utf && right_utf) |
0c57e439 |
930 | sv_utf8_upgrade(left); |
79072805 |
931 | |
1fbd88dc |
932 | if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) |
933 | sv_setpvn(sv, "", 0); /* avoid undef warning on |= and ^= */ |
7a4c00b4 |
934 | lsave = lc = SvPV(left, leftlen); |
935 | rsave = rc = SvPV(right, rightlen); |
93a17b20 |
936 | len = leftlen < rightlen ? leftlen : rightlen; |
a0d0e21e |
937 | lensave = len; |
c9b3c8d0 |
938 | if ((left_utf || right_utf) && (sv == left || sv == right)) { |
939 | needlen = optype == OP_BIT_AND ? len : leftlen + rightlen; |
940 | Newz(801, dc, needlen + 1, char); |
941 | } |
942 | else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { |
2d8e6c8d |
943 | STRLEN n_a; |
944 | dc = SvPV_force(sv, n_a); |
ff68c719 |
945 | if (SvCUR(sv) < len) { |
946 | dc = SvGROW(sv, len + 1); |
947 | (void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); |
948 | } |
c9b3c8d0 |
949 | if (optype != OP_BIT_AND && (left_utf || right_utf)) |
950 | dc = SvGROW(sv, leftlen + rightlen + 1); |
ff68c719 |
951 | } |
952 | else { |
c9b3c8d0 |
953 | needlen = ((optype == OP_BIT_AND) |
954 | ? len : (leftlen > rightlen ? leftlen : rightlen)); |
ff68c719 |
955 | Newz(801, dc, needlen + 1, char); |
956 | (void)sv_usepvn(sv, dc, needlen); |
957 | dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ |
79072805 |
958 | } |
a0d0e21e |
959 | SvCUR_set(sv, len); |
960 | (void)SvPOK_only(sv); |
0c57e439 |
961 | if (left_utf || right_utf) { |
962 | UV duc, luc, ruc; |
c9b3c8d0 |
963 | char *dcsave = dc; |
0c57e439 |
964 | STRLEN lulen = leftlen; |
965 | STRLEN rulen = rightlen; |
ba210ebe |
966 | STRLEN ulen; |
0c57e439 |
967 | |
968 | switch (optype) { |
969 | case OP_BIT_AND: |
970 | while (lulen && rulen) { |
cc366d4b |
971 | luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
972 | lc += ulen; |
973 | lulen -= ulen; |
cc366d4b |
974 | ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
975 | rc += ulen; |
976 | rulen -= ulen; |
977 | duc = luc & ruc; |
978 | dc = (char*)uv_to_utf8((U8*)dc, duc); |
979 | } |
c9b3c8d0 |
980 | if (sv == left || sv == right) |
981 | (void)sv_usepvn(sv, dcsave, needlen); |
982 | SvCUR_set(sv, dc - dcsave); |
0c57e439 |
983 | break; |
984 | case OP_BIT_XOR: |
985 | while (lulen && rulen) { |
cc366d4b |
986 | luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
987 | lc += ulen; |
988 | lulen -= ulen; |
cc366d4b |
989 | ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
990 | rc += ulen; |
991 | rulen -= ulen; |
992 | duc = luc ^ ruc; |
993 | dc = (char*)uv_to_utf8((U8*)dc, duc); |
994 | } |
995 | goto mop_up_utf; |
996 | case OP_BIT_OR: |
997 | while (lulen && rulen) { |
cc366d4b |
998 | luc = utf8_to_uv((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
999 | lc += ulen; |
1000 | lulen -= ulen; |
cc366d4b |
1001 | ruc = utf8_to_uv((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
0c57e439 |
1002 | rc += ulen; |
1003 | rulen -= ulen; |
1004 | duc = luc | ruc; |
1005 | dc = (char*)uv_to_utf8((U8*)dc, duc); |
1006 | } |
1007 | mop_up_utf: |
c9b3c8d0 |
1008 | if (sv == left || sv == right) |
1009 | (void)sv_usepvn(sv, dcsave, needlen); |
1010 | SvCUR_set(sv, dc - dcsave); |
0c57e439 |
1011 | if (rulen) |
1012 | sv_catpvn(sv, rc, rulen); |
1013 | else if (lulen) |
1014 | sv_catpvn(sv, lc, lulen); |
1015 | else |
1016 | *SvEND(sv) = '\0'; |
1017 | break; |
1018 | } |
1019 | SvUTF8_on(sv); |
1020 | goto finish; |
1021 | } |
1022 | else |
79072805 |
1023 | #ifdef LIBERAL |
1024 | if (len >= sizeof(long)*4 && |
1025 | !((long)dc % sizeof(long)) && |
1026 | !((long)lc % sizeof(long)) && |
1027 | !((long)rc % sizeof(long))) /* It's almost always aligned... */ |
1028 | { |
1029 | I32 remainder = len % (sizeof(long)*4); |
1030 | len /= (sizeof(long)*4); |
1031 | |
1032 | dl = (long*)dc; |
1033 | ll = (long*)lc; |
1034 | rl = (long*)rc; |
1035 | |
1036 | switch (optype) { |
1037 | case OP_BIT_AND: |
1038 | while (len--) { |
1039 | *dl++ = *ll++ & *rl++; |
1040 | *dl++ = *ll++ & *rl++; |
1041 | *dl++ = *ll++ & *rl++; |
1042 | *dl++ = *ll++ & *rl++; |
1043 | } |
1044 | break; |
a0d0e21e |
1045 | case OP_BIT_XOR: |
79072805 |
1046 | while (len--) { |
1047 | *dl++ = *ll++ ^ *rl++; |
1048 | *dl++ = *ll++ ^ *rl++; |
1049 | *dl++ = *ll++ ^ *rl++; |
1050 | *dl++ = *ll++ ^ *rl++; |
1051 | } |
1052 | break; |
1053 | case OP_BIT_OR: |
1054 | while (len--) { |
1055 | *dl++ = *ll++ | *rl++; |
1056 | *dl++ = *ll++ | *rl++; |
1057 | *dl++ = *ll++ | *rl++; |
1058 | *dl++ = *ll++ | *rl++; |
1059 | } |
1060 | } |
1061 | |
1062 | dc = (char*)dl; |
1063 | lc = (char*)ll; |
1064 | rc = (char*)rl; |
1065 | |
1066 | len = remainder; |
1067 | } |
1068 | #endif |
a0d0e21e |
1069 | { |
a0d0e21e |
1070 | switch (optype) { |
1071 | case OP_BIT_AND: |
1072 | while (len--) |
1073 | *dc++ = *lc++ & *rc++; |
1074 | break; |
1075 | case OP_BIT_XOR: |
1076 | while (len--) |
1077 | *dc++ = *lc++ ^ *rc++; |
1078 | goto mop_up; |
1079 | case OP_BIT_OR: |
1080 | while (len--) |
1081 | *dc++ = *lc++ | *rc++; |
1082 | mop_up: |
1083 | len = lensave; |
1084 | if (rightlen > len) |
1085 | sv_catpvn(sv, rsave + len, rightlen - len); |
1086 | else if (leftlen > len) |
1087 | sv_catpvn(sv, lsave + len, leftlen - len); |
4633a7c4 |
1088 | else |
1089 | *SvEND(sv) = '\0'; |
a0d0e21e |
1090 | break; |
1091 | } |
79072805 |
1092 | } |
0c57e439 |
1093 | finish: |
fb73857a |
1094 | SvTAINT(sv); |
79072805 |
1095 | } |
463ee0b2 |
1096 | |
1097 | OP * |
cea2e8a9 |
1098 | Perl_do_kv(pTHX) |
463ee0b2 |
1099 | { |
4e35701f |
1100 | djSP; |
463ee0b2 |
1101 | HV *hv = (HV*)POPs; |
800e9ae0 |
1102 | HV *keys; |
463ee0b2 |
1103 | register HE *entry; |
463ee0b2 |
1104 | SV *tmpstr; |
54310121 |
1105 | I32 gimme = GIMME_V; |
533c011a |
1106 | I32 dokeys = (PL_op->op_type == OP_KEYS); |
1107 | I32 dovalues = (PL_op->op_type == OP_VALUES); |
c750a3ec |
1108 | I32 realhv = (SvTYPE(hv) == SVt_PVHV); |
8e84507e |
1109 | |
1110 | if (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV) |
a0d0e21e |
1111 | dokeys = dovalues = TRUE; |
463ee0b2 |
1112 | |
85581909 |
1113 | if (!hv) { |
533c011a |
1114 | if (PL_op->op_flags & OPf_MOD) { /* lvalue */ |
85581909 |
1115 | dTARGET; /* make sure to clear its target here */ |
1116 | if (SvTYPE(TARG) == SVt_PVLV) |
1117 | LvTARG(TARG) = Nullsv; |
1118 | PUSHs(TARG); |
1119 | } |
463ee0b2 |
1120 | RETURN; |
85581909 |
1121 | } |
748a9306 |
1122 | |
800e9ae0 |
1123 | keys = realhv ? hv : avhv_keys((AV*)hv); |
1124 | (void)hv_iterinit(keys); /* always reset iterator regardless */ |
748a9306 |
1125 | |
54310121 |
1126 | if (gimme == G_VOID) |
aa689395 |
1127 | RETURN; |
1128 | |
54310121 |
1129 | if (gimme == G_SCALAR) { |
6ee623d5 |
1130 | IV i; |
463ee0b2 |
1131 | dTARGET; |
1132 | |
533c011a |
1133 | if (PL_op->op_flags & OPf_MOD) { /* lvalue */ |
85581909 |
1134 | if (SvTYPE(TARG) < SVt_PVLV) { |
1135 | sv_upgrade(TARG, SVt_PVLV); |
1136 | sv_magic(TARG, Nullsv, 'k', Nullch, 0); |
1137 | } |
1138 | LvTYPE(TARG) = 'k'; |
800e9ae0 |
1139 | if (LvTARG(TARG) != (SV*)keys) { |
6ff81951 |
1140 | if (LvTARG(TARG)) |
1141 | SvREFCNT_dec(LvTARG(TARG)); |
800e9ae0 |
1142 | LvTARG(TARG) = SvREFCNT_inc(keys); |
6ff81951 |
1143 | } |
85581909 |
1144 | PUSHs(TARG); |
1145 | RETURN; |
1146 | } |
1147 | |
33c27489 |
1148 | if (! SvTIED_mg((SV*)keys, 'P')) |
800e9ae0 |
1149 | i = HvKEYS(keys); |
463ee0b2 |
1150 | else { |
1151 | i = 0; |
463ee0b2 |
1152 | /*SUPPRESS 560*/ |
800e9ae0 |
1153 | while (hv_iternext(keys)) i++; |
463ee0b2 |
1154 | } |
1155 | PUSHi( i ); |
1156 | RETURN; |
1157 | } |
1158 | |
8ed4b672 |
1159 | EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues)); |
463ee0b2 |
1160 | |
463ee0b2 |
1161 | PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */ |
155aba94 |
1162 | while ((entry = hv_iternext(keys))) { |
463ee0b2 |
1163 | SPAGAIN; |
8c2cee6f |
1164 | if (dokeys) |
1165 | XPUSHs(hv_iterkeysv(entry)); /* won't clobber stack_sp */ |
463ee0b2 |
1166 | if (dovalues) { |
463ee0b2 |
1167 | PUTBACK; |
b6429b1b |
1168 | tmpstr = realhv ? |
1169 | hv_iterval(hv,entry) : avhv_iterval((AV*)hv,entry); |
cea2e8a9 |
1170 | DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu", |
46fc3d4c |
1171 | (unsigned long)HeHASH(entry), |
800e9ae0 |
1172 | HvMAX(keys)+1, |
1173 | (unsigned long)(HeHASH(entry) & HvMAX(keys)))); |
463ee0b2 |
1174 | SPAGAIN; |
46fc3d4c |
1175 | XPUSHs(tmpstr); |
463ee0b2 |
1176 | } |
1177 | PUTBACK; |
1178 | } |
1179 | return NORMAL; |
1180 | } |
4e35701f |
1181 | |