1 |
/* doop.c |
2 |
* |
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* Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, |
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* 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009 by Larry Wall and others |
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* |
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* You may distribute under the terms of either the GNU General Public |
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* License or the Artistic License, as specified in the README file. |
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* |
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*/ |
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|
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/* |
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* 'So that was the job I felt I had to do when I started,' thought Sam. |
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* |
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* [p.934 of _The Lord of the Rings_, VI/iii: "Mount Doom"] |
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*/ |
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|
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/* This file contains some common functions needed to carry out certain |
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* ops. For example both pp_schomp() and pp_chomp() - scalar and array |
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* chomp operations - call the function do_chomp() found in this file. |
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*/ |
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|
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#include "EXTERN.h" |
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#define PERL_IN_DOOP_C |
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#include "perl.h" |
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|
26 |
#ifndef PERL_MICRO |
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#include <signal.h> |
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#endif |
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|
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STATIC I32 |
31 |
S_do_trans_simple(pTHX_ SV * const sv) |
32 |
{ |
33 |
dVAR; |
34 |
I32 matches = 0; |
35 |
STRLEN len; |
36 |
U8 *s = (U8*)SvPV(sv,len); |
37 |
U8 * const send = s+len; |
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const short * const tbl = (short*)cPVOP->op_pv; |
39 |
|
40 |
PERL_ARGS_ASSERT_DO_TRANS_SIMPLE; |
41 |
|
42 |
if (!tbl) |
43 |
Perl_croak(aTHX_ "panic: do_trans_simple line %d",__LINE__); |
44 |
|
45 |
/* First, take care of non-UTF-8 input strings, because they're easy */ |
46 |
if (!SvUTF8(sv)) { |
47 |
while (s < send) { |
48 |
const I32 ch = tbl[*s]; |
49 |
if (ch >= 0) { |
50 |
matches++; |
51 |
*s = (U8)ch; |
52 |
} |
53 |
s++; |
54 |
} |
55 |
SvSETMAGIC(sv); |
56 |
} |
57 |
else { |
58 |
const I32 grows = PL_op->op_private & OPpTRANS_GROWS; |
59 |
U8 *d; |
60 |
U8 *dstart; |
61 |
|
62 |
/* Allow for expansion: $_="a".chr(400); tr/a/\xFE/, FE needs encoding */ |
63 |
if (grows) |
64 |
Newx(d, len*2+1, U8); |
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else |
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d = s; |
67 |
dstart = d; |
68 |
while (s < send) { |
69 |
STRLEN ulen; |
70 |
I32 ch; |
71 |
|
72 |
/* Need to check this, otherwise 128..255 won't match */ |
73 |
const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT); |
74 |
if (c < 0x100 && (ch = tbl[c]) >= 0) { |
75 |
matches++; |
76 |
d = uvchr_to_utf8(d, ch); |
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s += ulen; |
78 |
} |
79 |
else { /* No match -> copy */ |
80 |
Move(s, d, ulen, U8); |
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d += ulen; |
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s += ulen; |
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} |
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} |
85 |
if (grows) { |
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sv_setpvn(sv, (char*)dstart, d - dstart); |
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Safefree(dstart); |
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} |
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else { |
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*d = '\0'; |
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SvCUR_set(sv, d - dstart); |
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} |
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SvUTF8_on(sv); |
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SvSETMAGIC(sv); |
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} |
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return matches; |
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} |
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|
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STATIC I32 |
100 |
S_do_trans_count(pTHX_ SV * const sv) |
101 |
{ |
102 |
dVAR; |
103 |
STRLEN len; |
104 |
const U8 *s = (const U8*)SvPV_const(sv, len); |
105 |
const U8 * const send = s + len; |
106 |
I32 matches = 0; |
107 |
const short * const tbl = (short*)cPVOP->op_pv; |
108 |
|
109 |
PERL_ARGS_ASSERT_DO_TRANS_COUNT; |
110 |
|
111 |
if (!tbl) |
112 |
Perl_croak(aTHX_ "panic: do_trans_count line %d",__LINE__); |
113 |
|
114 |
if (!SvUTF8(sv)) { |
115 |
while (s < send) { |
116 |
if (tbl[*s++] >= 0) |
117 |
matches++; |
118 |
} |
119 |
} |
120 |
else { |
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const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT; |
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while (s < send) { |
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STRLEN ulen; |
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const UV c = utf8n_to_uvchr(s, send - s, &ulen, UTF8_ALLOW_DEFAULT); |
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if (c < 0x100) { |
126 |
if (tbl[c] >= 0) |
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matches++; |
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} else if (complement) |
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matches++; |
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s += ulen; |
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} |
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} |
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|
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return matches; |
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} |
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|
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STATIC I32 |
138 |
S_do_trans_complex(pTHX_ SV * const sv) |
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{ |
140 |
dVAR; |
141 |
STRLEN len; |
142 |
U8 *s = (U8*)SvPV(sv, len); |
143 |
U8 * const send = s+len; |
144 |
I32 matches = 0; |
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const short * const tbl = (short*)cPVOP->op_pv; |
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|
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PERL_ARGS_ASSERT_DO_TRANS_COMPLEX; |
148 |
|
149 |
if (!tbl) |
150 |
Perl_croak(aTHX_ "panic: do_trans_complex line %d",__LINE__); |
151 |
|
152 |
if (!SvUTF8(sv)) { |
153 |
U8 *d = s; |
154 |
U8 * const dstart = d; |
155 |
|
156 |
if (PL_op->op_private & OPpTRANS_SQUASH) { |
157 |
const U8* p = send; |
158 |
while (s < send) { |
159 |
const I32 ch = tbl[*s]; |
160 |
if (ch >= 0) { |
161 |
*d = (U8)ch; |
162 |
matches++; |
163 |
if (p != d - 1 || *p != *d) |
164 |
p = d++; |
165 |
} |
166 |
else if (ch == -1) /* -1 is unmapped character */ |
167 |
*d++ = *s; |
168 |
else if (ch == -2) /* -2 is delete character */ |
169 |
matches++; |
170 |
s++; |
171 |
} |
172 |
} |
173 |
else { |
174 |
while (s < send) { |
175 |
const I32 ch = tbl[*s]; |
176 |
if (ch >= 0) { |
177 |
matches++; |
178 |
*d++ = (U8)ch; |
179 |
} |
180 |
else if (ch == -1) /* -1 is unmapped character */ |
181 |
*d++ = *s; |
182 |
else if (ch == -2) /* -2 is delete character */ |
183 |
matches++; |
184 |
s++; |
185 |
} |
186 |
} |
187 |
*d = '\0'; |
188 |
SvCUR_set(sv, d - dstart); |
189 |
} |
190 |
else { /* is utf8 */ |
191 |
const I32 complement = PL_op->op_private & OPpTRANS_COMPLEMENT; |
192 |
const I32 grows = PL_op->op_private & OPpTRANS_GROWS; |
193 |
const I32 del = PL_op->op_private & OPpTRANS_DELETE; |
194 |
U8 *d; |
195 |
U8 *dstart; |
196 |
STRLEN rlen = 0; |
197 |
|
198 |
if (grows) |
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Newx(d, len*2+1, U8); |
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else |
201 |
d = s; |
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dstart = d; |
203 |
if (complement && !del) |
204 |
rlen = tbl[0x100]; |
205 |
|
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#ifdef MACOS_TRADITIONAL |
207 |
#define comp CoMP /* "comp" is a keyword in some compilers ... */ |
208 |
#endif |
209 |
|
210 |
if (PL_op->op_private & OPpTRANS_SQUASH) { |
211 |
UV pch = 0xfeedface; |
212 |
while (s < send) { |
213 |
STRLEN len; |
214 |
const UV comp = utf8n_to_uvchr(s, send - s, &len, |
215 |
UTF8_ALLOW_DEFAULT); |
216 |
I32 ch; |
217 |
|
218 |
if (comp > 0xff) { |
219 |
if (!complement) { |
220 |
Move(s, d, len, U8); |
221 |
d += len; |
222 |
} |
223 |
else { |
224 |
matches++; |
225 |
if (!del) { |
226 |
ch = (rlen == 0) ? (I32)comp : |
227 |
(comp - 0x100 < rlen) ? |
228 |
tbl[comp+1] : tbl[0x100+rlen]; |
229 |
if ((UV)ch != pch) { |
230 |
d = uvchr_to_utf8(d, ch); |
231 |
pch = (UV)ch; |
232 |
} |
233 |
s += len; |
234 |
continue; |
235 |
} |
236 |
} |
237 |
} |
238 |
else if ((ch = tbl[comp]) >= 0) { |
239 |
matches++; |
240 |
if ((UV)ch != pch) { |
241 |
d = uvchr_to_utf8(d, ch); |
242 |
pch = (UV)ch; |
243 |
} |
244 |
s += len; |
245 |
continue; |
246 |
} |
247 |
else if (ch == -1) { /* -1 is unmapped character */ |
248 |
Move(s, d, len, U8); |
249 |
d += len; |
250 |
} |
251 |
else if (ch == -2) /* -2 is delete character */ |
252 |
matches++; |
253 |
s += len; |
254 |
pch = 0xfeedface; |
255 |
} |
256 |
} |
257 |
else { |
258 |
while (s < send) { |
259 |
STRLEN len; |
260 |
const UV comp = utf8n_to_uvchr(s, send - s, &len, |
261 |
UTF8_ALLOW_DEFAULT); |
262 |
I32 ch; |
263 |
if (comp > 0xff) { |
264 |
if (!complement) { |
265 |
Move(s, d, len, U8); |
266 |
d += len; |
267 |
} |
268 |
else { |
269 |
matches++; |
270 |
if (!del) { |
271 |
if (comp - 0x100 < rlen) |
272 |
d = uvchr_to_utf8(d, tbl[comp+1]); |
273 |
else |
274 |
d = uvchr_to_utf8(d, tbl[0x100+rlen]); |
275 |
} |
276 |
} |
277 |
} |
278 |
else if ((ch = tbl[comp]) >= 0) { |
279 |
d = uvchr_to_utf8(d, ch); |
280 |
matches++; |
281 |
} |
282 |
else if (ch == -1) { /* -1 is unmapped character */ |
283 |
Move(s, d, len, U8); |
284 |
d += len; |
285 |
} |
286 |
else if (ch == -2) /* -2 is delete character */ |
287 |
matches++; |
288 |
s += len; |
289 |
} |
290 |
} |
291 |
if (grows) { |
292 |
sv_setpvn(sv, (char*)dstart, d - dstart); |
293 |
Safefree(dstart); |
294 |
} |
295 |
else { |
296 |
*d = '\0'; |
297 |
SvCUR_set(sv, d - dstart); |
298 |
} |
299 |
SvUTF8_on(sv); |
300 |
} |
301 |
SvSETMAGIC(sv); |
302 |
return matches; |
303 |
} |
304 |
|
305 |
STATIC I32 |
306 |
S_do_trans_simple_utf8(pTHX_ SV * const sv) |
307 |
{ |
308 |
dVAR; |
309 |
U8 *s; |
310 |
U8 *send; |
311 |
U8 *d; |
312 |
U8 *start; |
313 |
U8 *dstart, *dend; |
314 |
I32 matches = 0; |
315 |
const I32 grows = PL_op->op_private & OPpTRANS_GROWS; |
316 |
STRLEN len; |
317 |
SV* const rv = |
318 |
#ifdef USE_ITHREADS |
319 |
PAD_SVl(cPADOP->op_padix); |
320 |
#else |
321 |
MUTABLE_SV(cSVOP->op_sv); |
322 |
#endif |
323 |
HV* const hv = MUTABLE_HV(SvRV(rv)); |
324 |
SV* const * svp = hv_fetchs(hv, "NONE", FALSE); |
325 |
const UV none = svp ? SvUV(*svp) : 0x7fffffff; |
326 |
const UV extra = none + 1; |
327 |
UV final = 0; |
328 |
U8 hibit = 0; |
329 |
|
330 |
PERL_ARGS_ASSERT_DO_TRANS_SIMPLE_UTF8; |
331 |
|
332 |
s = (U8*)SvPV(sv, len); |
333 |
if (!SvUTF8(sv)) { |
334 |
const U8 *t = s; |
335 |
const U8 * const e = s + len; |
336 |
while (t < e) { |
337 |
const U8 ch = *t++; |
338 |
hibit = !NATIVE_IS_INVARIANT(ch); |
339 |
if (hibit) { |
340 |
s = bytes_to_utf8(s, &len); |
341 |
break; |
342 |
} |
343 |
} |
344 |
} |
345 |
send = s + len; |
346 |
start = s; |
347 |
|
348 |
svp = hv_fetchs(hv, "FINAL", FALSE); |
349 |
if (svp) |
350 |
final = SvUV(*svp); |
351 |
|
352 |
if (grows) { |
353 |
/* d needs to be bigger than s, in case e.g. upgrading is required */ |
354 |
Newx(d, len * 3 + UTF8_MAXBYTES, U8); |
355 |
dend = d + len * 3; |
356 |
dstart = d; |
357 |
} |
358 |
else { |
359 |
dstart = d = s; |
360 |
dend = d + len; |
361 |
} |
362 |
|
363 |
while (s < send) { |
364 |
const UV uv = swash_fetch(rv, s, TRUE); |
365 |
if (uv < none) { |
366 |
s += UTF8SKIP(s); |
367 |
matches++; |
368 |
d = uvuni_to_utf8(d, uv); |
369 |
} |
370 |
else if (uv == none) { |
371 |
const int i = UTF8SKIP(s); |
372 |
Move(s, d, i, U8); |
373 |
d += i; |
374 |
s += i; |
375 |
} |
376 |
else if (uv == extra) { |
377 |
s += UTF8SKIP(s); |
378 |
matches++; |
379 |
d = uvuni_to_utf8(d, final); |
380 |
} |
381 |
else |
382 |
s += UTF8SKIP(s); |
383 |
|
384 |
if (d > dend) { |
385 |
const STRLEN clen = d - dstart; |
386 |
const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES; |
387 |
if (!grows) |
388 |
Perl_croak(aTHX_ "panic: do_trans_simple_utf8 line %d",__LINE__); |
389 |
Renew(dstart, nlen + UTF8_MAXBYTES, U8); |
390 |
d = dstart + clen; |
391 |
dend = dstart + nlen; |
392 |
} |
393 |
} |
394 |
if (grows || hibit) { |
395 |
sv_setpvn(sv, (char*)dstart, d - dstart); |
396 |
Safefree(dstart); |
397 |
if (grows && hibit) |
398 |
Safefree(start); |
399 |
} |
400 |
else { |
401 |
*d = '\0'; |
402 |
SvCUR_set(sv, d - dstart); |
403 |
} |
404 |
SvSETMAGIC(sv); |
405 |
SvUTF8_on(sv); |
406 |
|
407 |
return matches; |
408 |
} |
409 |
|
410 |
STATIC I32 |
411 |
S_do_trans_count_utf8(pTHX_ SV * const sv) |
412 |
{ |
413 |
dVAR; |
414 |
const U8 *s; |
415 |
const U8 *start = NULL; |
416 |
const U8 *send; |
417 |
I32 matches = 0; |
418 |
STRLEN len; |
419 |
SV* const rv = |
420 |
#ifdef USE_ITHREADS |
421 |
PAD_SVl(cPADOP->op_padix); |
422 |
#else |
423 |
MUTABLE_SV(cSVOP->op_sv); |
424 |
#endif |
425 |
HV* const hv = MUTABLE_HV(SvRV(rv)); |
426 |
SV* const * const svp = hv_fetchs(hv, "NONE", FALSE); |
427 |
const UV none = svp ? SvUV(*svp) : 0x7fffffff; |
428 |
const UV extra = none + 1; |
429 |
U8 hibit = 0; |
430 |
|
431 |
PERL_ARGS_ASSERT_DO_TRANS_COUNT_UTF8; |
432 |
|
433 |
s = (const U8*)SvPV_const(sv, len); |
434 |
if (!SvUTF8(sv)) { |
435 |
const U8 *t = s; |
436 |
const U8 * const e = s + len; |
437 |
while (t < e) { |
438 |
const U8 ch = *t++; |
439 |
hibit = !NATIVE_IS_INVARIANT(ch); |
440 |
if (hibit) { |
441 |
start = s = bytes_to_utf8(s, &len); |
442 |
break; |
443 |
} |
444 |
} |
445 |
} |
446 |
send = s + len; |
447 |
|
448 |
while (s < send) { |
449 |
const UV uv = swash_fetch(rv, s, TRUE); |
450 |
if (uv < none || uv == extra) |
451 |
matches++; |
452 |
s += UTF8SKIP(s); |
453 |
} |
454 |
if (hibit) |
455 |
Safefree(start); |
456 |
|
457 |
return matches; |
458 |
} |
459 |
|
460 |
STATIC I32 |
461 |
S_do_trans_complex_utf8(pTHX_ SV * const sv) |
462 |
{ |
463 |
dVAR; |
464 |
U8 *start, *send; |
465 |
U8 *d; |
466 |
I32 matches = 0; |
467 |
const I32 squash = PL_op->op_private & OPpTRANS_SQUASH; |
468 |
const I32 del = PL_op->op_private & OPpTRANS_DELETE; |
469 |
const I32 grows = PL_op->op_private & OPpTRANS_GROWS; |
470 |
SV* const rv = |
471 |
#ifdef USE_ITHREADS |
472 |
PAD_SVl(cPADOP->op_padix); |
473 |
#else |
474 |
MUTABLE_SV(cSVOP->op_sv); |
475 |
#endif |
476 |
HV * const hv = MUTABLE_HV(SvRV(rv)); |
477 |
SV * const *svp = hv_fetchs(hv, "NONE", FALSE); |
478 |
const UV none = svp ? SvUV(*svp) : 0x7fffffff; |
479 |
const UV extra = none + 1; |
480 |
UV final = 0; |
481 |
bool havefinal = FALSE; |
482 |
STRLEN len; |
483 |
U8 *dstart, *dend; |
484 |
U8 hibit = 0; |
485 |
U8 *s = (U8*)SvPV(sv, len); |
486 |
|
487 |
PERL_ARGS_ASSERT_DO_TRANS_COMPLEX_UTF8; |
488 |
|
489 |
if (!SvUTF8(sv)) { |
490 |
const U8 *t = s; |
491 |
const U8 * const e = s + len; |
492 |
while (t < e) { |
493 |
const U8 ch = *t++; |
494 |
hibit = !NATIVE_IS_INVARIANT(ch); |
495 |
if (hibit) { |
496 |
s = bytes_to_utf8(s, &len); |
497 |
break; |
498 |
} |
499 |
} |
500 |
} |
501 |
send = s + len; |
502 |
start = s; |
503 |
|
504 |
svp = hv_fetchs(hv, "FINAL", FALSE); |
505 |
if (svp) { |
506 |
final = SvUV(*svp); |
507 |
havefinal = TRUE; |
508 |
} |
509 |
|
510 |
if (grows) { |
511 |
/* d needs to be bigger than s, in case e.g. upgrading is required */ |
512 |
Newx(d, len * 3 + UTF8_MAXBYTES, U8); |
513 |
dend = d + len * 3; |
514 |
dstart = d; |
515 |
} |
516 |
else { |
517 |
dstart = d = s; |
518 |
dend = d + len; |
519 |
} |
520 |
|
521 |
if (squash) { |
522 |
UV puv = 0xfeedface; |
523 |
while (s < send) { |
524 |
UV uv = swash_fetch(rv, s, TRUE); |
525 |
|
526 |
if (d > dend) { |
527 |
const STRLEN clen = d - dstart; |
528 |
const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES; |
529 |
if (!grows) |
530 |
Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__); |
531 |
Renew(dstart, nlen + UTF8_MAXBYTES, U8); |
532 |
d = dstart + clen; |
533 |
dend = dstart + nlen; |
534 |
} |
535 |
if (uv < none) { |
536 |
matches++; |
537 |
s += UTF8SKIP(s); |
538 |
if (uv != puv) { |
539 |
d = uvuni_to_utf8(d, uv); |
540 |
puv = uv; |
541 |
} |
542 |
continue; |
543 |
} |
544 |
else if (uv == none) { /* "none" is unmapped character */ |
545 |
const int i = UTF8SKIP(s); |
546 |
Move(s, d, i, U8); |
547 |
d += i; |
548 |
s += i; |
549 |
puv = 0xfeedface; |
550 |
continue; |
551 |
} |
552 |
else if (uv == extra && !del) { |
553 |
matches++; |
554 |
if (havefinal) { |
555 |
s += UTF8SKIP(s); |
556 |
if (puv != final) { |
557 |
d = uvuni_to_utf8(d, final); |
558 |
puv = final; |
559 |
} |
560 |
} |
561 |
else { |
562 |
STRLEN len; |
563 |
uv = utf8n_to_uvuni(s, send - s, &len, UTF8_ALLOW_DEFAULT); |
564 |
if (uv != puv) { |
565 |
Move(s, d, len, U8); |
566 |
d += len; |
567 |
puv = uv; |
568 |
} |
569 |
s += len; |
570 |
} |
571 |
continue; |
572 |
} |
573 |
matches++; /* "none+1" is delete character */ |
574 |
s += UTF8SKIP(s); |
575 |
} |
576 |
} |
577 |
else { |
578 |
while (s < send) { |
579 |
const UV uv = swash_fetch(rv, s, TRUE); |
580 |
if (d > dend) { |
581 |
const STRLEN clen = d - dstart; |
582 |
const STRLEN nlen = dend - dstart + len + UTF8_MAXBYTES; |
583 |
if (!grows) |
584 |
Perl_croak(aTHX_ "panic: do_trans_complex_utf8 line %d",__LINE__); |
585 |
Renew(dstart, nlen + UTF8_MAXBYTES, U8); |
586 |
d = dstart + clen; |
587 |
dend = dstart + nlen; |
588 |
} |
589 |
if (uv < none) { |
590 |
matches++; |
591 |
s += UTF8SKIP(s); |
592 |
d = uvuni_to_utf8(d, uv); |
593 |
continue; |
594 |
} |
595 |
else if (uv == none) { /* "none" is unmapped character */ |
596 |
const int i = UTF8SKIP(s); |
597 |
Move(s, d, i, U8); |
598 |
d += i; |
599 |
s += i; |
600 |
continue; |
601 |
} |
602 |
else if (uv == extra && !del) { |
603 |
matches++; |
604 |
s += UTF8SKIP(s); |
605 |
d = uvuni_to_utf8(d, final); |
606 |
continue; |
607 |
} |
608 |
matches++; /* "none+1" is delete character */ |
609 |
s += UTF8SKIP(s); |
610 |
} |
611 |
} |
612 |
if (grows || hibit) { |
613 |
sv_setpvn(sv, (char*)dstart, d - dstart); |
614 |
Safefree(dstart); |
615 |
if (grows && hibit) |
616 |
Safefree(start); |
617 |
} |
618 |
else { |
619 |
*d = '\0'; |
620 |
SvCUR_set(sv, d - dstart); |
621 |
} |
622 |
SvUTF8_on(sv); |
623 |
SvSETMAGIC(sv); |
624 |
|
625 |
return matches; |
626 |
} |
627 |
|
628 |
I32 |
629 |
Perl_do_trans(pTHX_ SV *sv) |
630 |
{ |
631 |
dVAR; |
632 |
STRLEN len; |
633 |
const I32 hasutf = (PL_op->op_private & |
634 |
(OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF)); |
635 |
|
636 |
PERL_ARGS_ASSERT_DO_TRANS; |
637 |
|
638 |
if (SvREADONLY(sv) && !(PL_op->op_private & OPpTRANS_IDENTICAL)) { |
639 |
if (SvIsCOW(sv)) |
640 |
sv_force_normal_flags(sv, 0); |
641 |
if (SvREADONLY(sv)) |
642 |
Perl_croak(aTHX_ "%s", PL_no_modify); |
643 |
} |
644 |
(void)SvPV_const(sv, len); |
645 |
if (!len) |
646 |
return 0; |
647 |
if (!(PL_op->op_private & OPpTRANS_IDENTICAL)) { |
648 |
if (!SvPOKp(sv)) |
649 |
(void)SvPV_force(sv, len); |
650 |
(void)SvPOK_only_UTF8(sv); |
651 |
} |
652 |
|
653 |
DEBUG_t( Perl_deb(aTHX_ "2.TBL\n")); |
654 |
|
655 |
switch (PL_op->op_private & ~hasutf & ( |
656 |
OPpTRANS_FROM_UTF|OPpTRANS_TO_UTF|OPpTRANS_IDENTICAL| |
657 |
OPpTRANS_SQUASH|OPpTRANS_DELETE|OPpTRANS_COMPLEMENT)) { |
658 |
case 0: |
659 |
if (hasutf) |
660 |
return do_trans_simple_utf8(sv); |
661 |
else |
662 |
return do_trans_simple(sv); |
663 |
|
664 |
case OPpTRANS_IDENTICAL: |
665 |
case OPpTRANS_IDENTICAL|OPpTRANS_COMPLEMENT: |
666 |
if (hasutf) |
667 |
return do_trans_count_utf8(sv); |
668 |
else |
669 |
return do_trans_count(sv); |
670 |
|
671 |
default: |
672 |
if (hasutf) |
673 |
return do_trans_complex_utf8(sv); |
674 |
else |
675 |
return do_trans_complex(sv); |
676 |
} |
677 |
} |
678 |
|
679 |
void |
680 |
Perl_do_join(pTHX_ register SV *sv, SV *delim, register SV **mark, register SV **sp) |
681 |
{ |
682 |
dVAR; |
683 |
SV ** const oldmark = mark; |
684 |
register I32 items = sp - mark; |
685 |
register STRLEN len; |
686 |
STRLEN delimlen; |
687 |
|
688 |
PERL_ARGS_ASSERT_DO_JOIN; |
689 |
|
690 |
(void) SvPV_const(delim, delimlen); /* stringify and get the delimlen */ |
691 |
/* SvCUR assumes it's SvPOK() and woe betide you if it's not. */ |
692 |
|
693 |
mark++; |
694 |
len = (items > 0 ? (delimlen * (items - 1) ) : 0); |
695 |
SvUPGRADE(sv, SVt_PV); |
696 |
if (SvLEN(sv) < len + items) { /* current length is way too short */ |
697 |
while (items-- > 0) { |
698 |
if (*mark && !SvGAMAGIC(*mark) && SvOK(*mark)) { |
699 |
STRLEN tmplen; |
700 |
SvPV_const(*mark, tmplen); |
701 |
len += tmplen; |
702 |
} |
703 |
mark++; |
704 |
} |
705 |
SvGROW(sv, len + 1); /* so try to pre-extend */ |
706 |
|
707 |
mark = oldmark; |
708 |
items = sp - mark; |
709 |
++mark; |
710 |
} |
711 |
|
712 |
sv_setpvs(sv, ""); |
713 |
/* sv_setpv retains old UTF8ness [perl #24846] */ |
714 |
SvUTF8_off(sv); |
715 |
|
716 |
if (PL_tainting && SvMAGICAL(sv)) |
717 |
SvTAINTED_off(sv); |
718 |
|
719 |
if (items-- > 0) { |
720 |
if (*mark) |
721 |
sv_catsv(sv, *mark); |
722 |
mark++; |
723 |
} |
724 |
|
725 |
if (delimlen) { |
726 |
for (; items > 0; items--,mark++) { |
727 |
sv_catsv(sv,delim); |
728 |
sv_catsv(sv,*mark); |
729 |
} |
730 |
} |
731 |
else { |
732 |
for (; items > 0; items--,mark++) |
733 |
sv_catsv(sv,*mark); |
734 |
} |
735 |
SvSETMAGIC(sv); |
736 |
} |
737 |
|
738 |
void |
739 |
Perl_do_sprintf(pTHX_ SV *sv, I32 len, SV **sarg) |
740 |
{ |
741 |
dVAR; |
742 |
STRLEN patlen; |
743 |
const char * const pat = SvPV_const(*sarg, patlen); |
744 |
bool do_taint = FALSE; |
745 |
|
746 |
PERL_ARGS_ASSERT_DO_SPRINTF; |
747 |
|
748 |
SvUTF8_off(sv); |
749 |
if (DO_UTF8(*sarg)) |
750 |
SvUTF8_on(sv); |
751 |
sv_vsetpvfn(sv, pat, patlen, NULL, sarg + 1, len - 1, &do_taint); |
752 |
SvSETMAGIC(sv); |
753 |
if (do_taint) |
754 |
SvTAINTED_on(sv); |
755 |
} |
756 |
|
757 |
/* currently converts input to bytes if possible, but doesn't sweat failure */ |
758 |
UV |
759 |
Perl_do_vecget(pTHX_ SV *sv, I32 offset, I32 size) |
760 |
{ |
761 |
dVAR; |
762 |
STRLEN srclen, len, uoffset, bitoffs = 0; |
763 |
const unsigned char *s = (const unsigned char *) SvPV_const(sv, srclen); |
764 |
UV retnum = 0; |
765 |
|
766 |
PERL_ARGS_ASSERT_DO_VECGET; |
767 |
|
768 |
if (offset < 0) |
769 |
return 0; |
770 |
if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
771 |
Perl_croak(aTHX_ "Illegal number of bits in vec"); |
772 |
|
773 |
if (SvUTF8(sv)) |
774 |
(void) Perl_sv_utf8_downgrade(aTHX_ sv, TRUE); |
775 |
|
776 |
if (size < 8) { |
777 |
bitoffs = ((offset%8)*size)%8; |
778 |
uoffset = offset/(8/size); |
779 |
} |
780 |
else if (size > 8) |
781 |
uoffset = offset*(size/8); |
782 |
else |
783 |
uoffset = offset; |
784 |
|
785 |
len = uoffset + (bitoffs + size + 7)/8; /* required number of bytes */ |
786 |
if (len > srclen) { |
787 |
if (size <= 8) |
788 |
retnum = 0; |
789 |
else { |
790 |
if (size == 16) { |
791 |
if (uoffset >= srclen) |
792 |
retnum = 0; |
793 |
else |
794 |
retnum = (UV) s[uoffset] << 8; |
795 |
} |
796 |
else if (size == 32) { |
797 |
if (uoffset >= srclen) |
798 |
retnum = 0; |
799 |
else if (uoffset + 1 >= srclen) |
800 |
retnum = |
801 |
((UV) s[uoffset ] << 24); |
802 |
else if (uoffset + 2 >= srclen) |
803 |
retnum = |
804 |
((UV) s[uoffset ] << 24) + |
805 |
((UV) s[uoffset + 1] << 16); |
806 |
else |
807 |
retnum = |
808 |
((UV) s[uoffset ] << 24) + |
809 |
((UV) s[uoffset + 1] << 16) + |
810 |
( s[uoffset + 2] << 8); |
811 |
} |
812 |
#ifdef UV_IS_QUAD |
813 |
else if (size == 64) { |
814 |
if (ckWARN(WARN_PORTABLE)) |
815 |
Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
816 |
"Bit vector size > 32 non-portable"); |
817 |
if (uoffset >= srclen) |
818 |
retnum = 0; |
819 |
else if (uoffset + 1 >= srclen) |
820 |
retnum = |
821 |
(UV) s[uoffset ] << 56; |
822 |
else if (uoffset + 2 >= srclen) |
823 |
retnum = |
824 |
((UV) s[uoffset ] << 56) + |
825 |
((UV) s[uoffset + 1] << 48); |
826 |
else if (uoffset + 3 >= srclen) |
827 |
retnum = |
828 |
((UV) s[uoffset ] << 56) + |
829 |
((UV) s[uoffset + 1] << 48) + |
830 |
((UV) s[uoffset + 2] << 40); |
831 |
else if (uoffset + 4 >= srclen) |
832 |
retnum = |
833 |
((UV) s[uoffset ] << 56) + |
834 |
((UV) s[uoffset + 1] << 48) + |
835 |
((UV) s[uoffset + 2] << 40) + |
836 |
((UV) s[uoffset + 3] << 32); |
837 |
else if (uoffset + 5 >= srclen) |
838 |
retnum = |
839 |
((UV) s[uoffset ] << 56) + |
840 |
((UV) s[uoffset + 1] << 48) + |
841 |
((UV) s[uoffset + 2] << 40) + |
842 |
((UV) s[uoffset + 3] << 32) + |
843 |
( s[uoffset + 4] << 24); |
844 |
else if (uoffset + 6 >= srclen) |
845 |
retnum = |
846 |
((UV) s[uoffset ] << 56) + |
847 |
((UV) s[uoffset + 1] << 48) + |
848 |
((UV) s[uoffset + 2] << 40) + |
849 |
((UV) s[uoffset + 3] << 32) + |
850 |
((UV) s[uoffset + 4] << 24) + |
851 |
((UV) s[uoffset + 5] << 16); |
852 |
else |
853 |
retnum = |
854 |
((UV) s[uoffset ] << 56) + |
855 |
((UV) s[uoffset + 1] << 48) + |
856 |
((UV) s[uoffset + 2] << 40) + |
857 |
((UV) s[uoffset + 3] << 32) + |
858 |
((UV) s[uoffset + 4] << 24) + |
859 |
((UV) s[uoffset + 5] << 16) + |
860 |
( s[uoffset + 6] << 8); |
861 |
} |
862 |
#endif |
863 |
} |
864 |
} |
865 |
else if (size < 8) |
866 |
retnum = (s[uoffset] >> bitoffs) & ((1 << size) - 1); |
867 |
else { |
868 |
if (size == 8) |
869 |
retnum = s[uoffset]; |
870 |
else if (size == 16) |
871 |
retnum = |
872 |
((UV) s[uoffset] << 8) + |
873 |
s[uoffset + 1]; |
874 |
else if (size == 32) |
875 |
retnum = |
876 |
((UV) s[uoffset ] << 24) + |
877 |
((UV) s[uoffset + 1] << 16) + |
878 |
( s[uoffset + 2] << 8) + |
879 |
s[uoffset + 3]; |
880 |
#ifdef UV_IS_QUAD |
881 |
else if (size == 64) { |
882 |
if (ckWARN(WARN_PORTABLE)) |
883 |
Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
884 |
"Bit vector size > 32 non-portable"); |
885 |
retnum = |
886 |
((UV) s[uoffset ] << 56) + |
887 |
((UV) s[uoffset + 1] << 48) + |
888 |
((UV) s[uoffset + 2] << 40) + |
889 |
((UV) s[uoffset + 3] << 32) + |
890 |
((UV) s[uoffset + 4] << 24) + |
891 |
((UV) s[uoffset + 5] << 16) + |
892 |
( s[uoffset + 6] << 8) + |
893 |
s[uoffset + 7]; |
894 |
} |
895 |
#endif |
896 |
} |
897 |
|
898 |
return retnum; |
899 |
} |
900 |
|
901 |
/* currently converts input to bytes if possible but doesn't sweat failures, |
902 |
* although it does ensure that the string it clobbers is not marked as |
903 |
* utf8-valid any more |
904 |
*/ |
905 |
void |
906 |
Perl_do_vecset(pTHX_ SV *sv) |
907 |
{ |
908 |
dVAR; |
909 |
register I32 offset, bitoffs = 0; |
910 |
register I32 size; |
911 |
register unsigned char *s; |
912 |
register UV lval; |
913 |
I32 mask; |
914 |
STRLEN targlen; |
915 |
STRLEN len; |
916 |
SV * const targ = LvTARG(sv); |
917 |
|
918 |
PERL_ARGS_ASSERT_DO_VECSET; |
919 |
|
920 |
if (!targ) |
921 |
return; |
922 |
s = (unsigned char*)SvPV_force(targ, targlen); |
923 |
if (SvUTF8(targ)) { |
924 |
/* This is handled by the SvPOK_only below... |
925 |
if (!Perl_sv_utf8_downgrade(aTHX_ targ, TRUE)) |
926 |
SvUTF8_off(targ); |
927 |
*/ |
928 |
(void) Perl_sv_utf8_downgrade(aTHX_ targ, TRUE); |
929 |
} |
930 |
|
931 |
(void)SvPOK_only(targ); |
932 |
lval = SvUV(sv); |
933 |
offset = LvTARGOFF(sv); |
934 |
if (offset < 0) |
935 |
Perl_croak(aTHX_ "Negative offset to vec in lvalue context"); |
936 |
size = LvTARGLEN(sv); |
937 |
if (size < 1 || (size & (size-1))) /* size < 1 or not a power of two */ |
938 |
Perl_croak(aTHX_ "Illegal number of bits in vec"); |
939 |
|
940 |
if (size < 8) { |
941 |
bitoffs = ((offset%8)*size)%8; |
942 |
offset /= 8/size; |
943 |
} |
944 |
else if (size > 8) |
945 |
offset *= size/8; |
946 |
|
947 |
len = offset + (bitoffs + size + 7)/8; /* required number of bytes */ |
948 |
if (len > targlen) { |
949 |
s = (unsigned char*)SvGROW(targ, len + 1); |
950 |
(void)memzero((char *)(s + targlen), len - targlen + 1); |
951 |
SvCUR_set(targ, len); |
952 |
} |
953 |
|
954 |
if (size < 8) { |
955 |
mask = (1 << size) - 1; |
956 |
lval &= mask; |
957 |
s[offset] &= ~(mask << bitoffs); |
958 |
s[offset] |= lval << bitoffs; |
959 |
} |
960 |
else { |
961 |
if (size == 8) |
962 |
s[offset ] = (U8)( lval & 0xff); |
963 |
else if (size == 16) { |
964 |
s[offset ] = (U8)((lval >> 8) & 0xff); |
965 |
s[offset+1] = (U8)( lval & 0xff); |
966 |
} |
967 |
else if (size == 32) { |
968 |
s[offset ] = (U8)((lval >> 24) & 0xff); |
969 |
s[offset+1] = (U8)((lval >> 16) & 0xff); |
970 |
s[offset+2] = (U8)((lval >> 8) & 0xff); |
971 |
s[offset+3] = (U8)( lval & 0xff); |
972 |
} |
973 |
#ifdef UV_IS_QUAD |
974 |
else if (size == 64) { |
975 |
if (ckWARN(WARN_PORTABLE)) |
976 |
Perl_warner(aTHX_ packWARN(WARN_PORTABLE), |
977 |
"Bit vector size > 32 non-portable"); |
978 |
s[offset ] = (U8)((lval >> 56) & 0xff); |
979 |
s[offset+1] = (U8)((lval >> 48) & 0xff); |
980 |
s[offset+2] = (U8)((lval >> 40) & 0xff); |
981 |
s[offset+3] = (U8)((lval >> 32) & 0xff); |
982 |
s[offset+4] = (U8)((lval >> 24) & 0xff); |
983 |
s[offset+5] = (U8)((lval >> 16) & 0xff); |
984 |
s[offset+6] = (U8)((lval >> 8) & 0xff); |
985 |
s[offset+7] = (U8)( lval & 0xff); |
986 |
} |
987 |
#endif |
988 |
} |
989 |
SvSETMAGIC(targ); |
990 |
} |
991 |
|
992 |
void |
993 |
Perl_do_chop(pTHX_ register SV *astr, register SV *sv) |
994 |
{ |
995 |
dVAR; |
996 |
STRLEN len; |
997 |
char *s; |
998 |
|
999 |
PERL_ARGS_ASSERT_DO_CHOP; |
1000 |
|
1001 |
if (SvTYPE(sv) == SVt_PVAV) { |
1002 |
register I32 i; |
1003 |
AV *const av = MUTABLE_AV(sv); |
1004 |
const I32 max = AvFILL(av); |
1005 |
|
1006 |
for (i = 0; i <= max; i++) { |
1007 |
sv = MUTABLE_SV(av_fetch(av, i, FALSE)); |
1008 |
if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) |
1009 |
do_chop(astr, sv); |
1010 |
} |
1011 |
return; |
1012 |
} |
1013 |
else if (SvTYPE(sv) == SVt_PVHV) { |
1014 |
HV* const hv = MUTABLE_HV(sv); |
1015 |
HE* entry; |
1016 |
(void)hv_iterinit(hv); |
1017 |
while ((entry = hv_iternext(hv))) |
1018 |
do_chop(astr,hv_iterval(hv,entry)); |
1019 |
return; |
1020 |
} |
1021 |
else if (SvREADONLY(sv)) { |
1022 |
if (SvFAKE(sv)) { |
1023 |
/* SV is copy-on-write */ |
1024 |
sv_force_normal_flags(sv, 0); |
1025 |
} |
1026 |
if (SvREADONLY(sv)) |
1027 |
Perl_croak(aTHX_ "%s", PL_no_modify); |
1028 |
} |
1029 |
|
1030 |
if (PL_encoding && !SvUTF8(sv)) { |
1031 |
/* like in do_chomp(), utf8-ize the sv as a side-effect |
1032 |
* if we're using encoding. */ |
1033 |
sv_recode_to_utf8(sv, PL_encoding); |
1034 |
} |
1035 |
|
1036 |
s = SvPV(sv, len); |
1037 |
if (len && !SvPOK(sv)) |
1038 |
s = SvPV_force_nomg(sv, len); |
1039 |
if (DO_UTF8(sv)) { |
1040 |
if (s && len) { |
1041 |
char * const send = s + len; |
1042 |
char * const start = s; |
1043 |
s = send - 1; |
1044 |
while (s > start && UTF8_IS_CONTINUATION(*s)) |
1045 |
s--; |
1046 |
if (is_utf8_string((U8*)s, send - s)) { |
1047 |
sv_setpvn(astr, s, send - s); |
1048 |
*s = '\0'; |
1049 |
SvCUR_set(sv, s - start); |
1050 |
SvNIOK_off(sv); |
1051 |
SvUTF8_on(astr); |
1052 |
} |
1053 |
} |
1054 |
else |
1055 |
sv_setpvs(astr, ""); |
1056 |
} |
1057 |
else if (s && len) { |
1058 |
s += --len; |
1059 |
sv_setpvn(astr, s, 1); |
1060 |
*s = '\0'; |
1061 |
SvCUR_set(sv, len); |
1062 |
SvUTF8_off(sv); |
1063 |
SvNIOK_off(sv); |
1064 |
} |
1065 |
else |
1066 |
sv_setpvs(astr, ""); |
1067 |
SvSETMAGIC(sv); |
1068 |
} |
1069 |
|
1070 |
I32 |
1071 |
Perl_do_chomp(pTHX_ register SV *sv) |
1072 |
{ |
1073 |
dVAR; |
1074 |
register I32 count; |
1075 |
STRLEN len; |
1076 |
char *s; |
1077 |
char *temp_buffer = NULL; |
1078 |
SV* svrecode = NULL; |
1079 |
|
1080 |
PERL_ARGS_ASSERT_DO_CHOMP; |
1081 |
|
1082 |
if (RsSNARF(PL_rs)) |
1083 |
return 0; |
1084 |
if (RsRECORD(PL_rs)) |
1085 |
return 0; |
1086 |
count = 0; |
1087 |
if (SvTYPE(sv) == SVt_PVAV) { |
1088 |
register I32 i; |
1089 |
AV *const av = MUTABLE_AV(sv); |
1090 |
const I32 max = AvFILL(av); |
1091 |
|
1092 |
for (i = 0; i <= max; i++) { |
1093 |
sv = MUTABLE_SV(av_fetch(av, i, FALSE)); |
1094 |
if (sv && ((sv = *(SV**)sv), sv != &PL_sv_undef)) |
1095 |
count += do_chomp(sv); |
1096 |
} |
1097 |
return count; |
1098 |
} |
1099 |
else if (SvTYPE(sv) == SVt_PVHV) { |
1100 |
HV* const hv = MUTABLE_HV(sv); |
1101 |
HE* entry; |
1102 |
(void)hv_iterinit(hv); |
1103 |
while ((entry = hv_iternext(hv))) |
1104 |
count += do_chomp(hv_iterval(hv,entry)); |
1105 |
return count; |
1106 |
} |
1107 |
else if (SvREADONLY(sv)) { |
1108 |
if (SvFAKE(sv)) { |
1109 |
/* SV is copy-on-write */ |
1110 |
sv_force_normal_flags(sv, 0); |
1111 |
} |
1112 |
if (SvREADONLY(sv)) |
1113 |
Perl_croak(aTHX_ "%s", PL_no_modify); |
1114 |
} |
1115 |
|
1116 |
if (PL_encoding) { |
1117 |
if (!SvUTF8(sv)) { |
1118 |
/* XXX, here sv is utf8-ized as a side-effect! |
1119 |
If encoding.pm is used properly, almost string-generating |
1120 |
operations, including literal strings, chr(), input data, etc. |
1121 |
should have been utf8-ized already, right? |
1122 |
*/ |
1123 |
sv_recode_to_utf8(sv, PL_encoding); |
1124 |
} |
1125 |
} |
1126 |
|
1127 |
s = SvPV(sv, len); |
1128 |
if (s && len) { |
1129 |
s += --len; |
1130 |
if (RsPARA(PL_rs)) { |
1131 |
if (*s != '\n') |
1132 |
goto nope; |
1133 |
++count; |
1134 |
while (len && s[-1] == '\n') { |
1135 |
--len; |
1136 |
--s; |
1137 |
++count; |
1138 |
} |
1139 |
} |
1140 |
else { |
1141 |
STRLEN rslen, rs_charlen; |
1142 |
const char *rsptr = SvPV_const(PL_rs, rslen); |
1143 |
|
1144 |
rs_charlen = SvUTF8(PL_rs) |
1145 |
? sv_len_utf8(PL_rs) |
1146 |
: rslen; |
1147 |
|
1148 |
if (SvUTF8(PL_rs) != SvUTF8(sv)) { |
1149 |
/* Assumption is that rs is shorter than the scalar. */ |
1150 |
if (SvUTF8(PL_rs)) { |
1151 |
/* RS is utf8, scalar is 8 bit. */ |
1152 |
bool is_utf8 = TRUE; |
1153 |
temp_buffer = (char*)bytes_from_utf8((U8*)rsptr, |
1154 |
&rslen, &is_utf8); |
1155 |
if (is_utf8) { |
1156 |
/* Cannot downgrade, therefore cannot possibly match |
1157 |
*/ |
1158 |
assert (temp_buffer == rsptr); |
1159 |
temp_buffer = NULL; |
1160 |
goto nope; |
1161 |
} |
1162 |
rsptr = temp_buffer; |
1163 |
} |
1164 |
else if (PL_encoding) { |
1165 |
/* RS is 8 bit, encoding.pm is used. |
1166 |
* Do not recode PL_rs as a side-effect. */ |
1167 |
svrecode = newSVpvn(rsptr, rslen); |
1168 |
sv_recode_to_utf8(svrecode, PL_encoding); |
1169 |
rsptr = SvPV_const(svrecode, rslen); |
1170 |
rs_charlen = sv_len_utf8(svrecode); |
1171 |
} |
1172 |
else { |
1173 |
/* RS is 8 bit, scalar is utf8. */ |
1174 |
temp_buffer = (char*)bytes_to_utf8((U8*)rsptr, &rslen); |
1175 |
rsptr = temp_buffer; |
1176 |
} |
1177 |
} |
1178 |
if (rslen == 1) { |
1179 |
if (*s != *rsptr) |
1180 |
goto nope; |
1181 |
++count; |
1182 |
} |
1183 |
else { |
1184 |
if (len < rslen - 1) |
1185 |
goto nope; |
1186 |
len -= rslen - 1; |
1187 |
s -= rslen - 1; |
1188 |
if (memNE(s, rsptr, rslen)) |
1189 |
goto nope; |
1190 |
count += rs_charlen; |
1191 |
} |
1192 |
} |
1193 |
s = SvPV_force_nolen(sv); |
1194 |
SvCUR_set(sv, len); |
1195 |
*SvEND(sv) = '\0'; |
1196 |
SvNIOK_off(sv); |
1197 |
SvSETMAGIC(sv); |
1198 |
} |
1199 |
nope: |
1200 |
|
1201 |
if (svrecode) |
1202 |
SvREFCNT_dec(svrecode); |
1203 |
|
1204 |
Safefree(temp_buffer); |
1205 |
return count; |
1206 |
} |
1207 |
|
1208 |
void |
1209 |
Perl_do_vop(pTHX_ I32 optype, SV *sv, SV *left, SV *right) |
1210 |
{ |
1211 |
dVAR; |
1212 |
#ifdef LIBERAL |
1213 |
register long *dl; |
1214 |
register long *ll; |
1215 |
register long *rl; |
1216 |
#endif |
1217 |
register char *dc; |
1218 |
STRLEN leftlen; |
1219 |
STRLEN rightlen; |
1220 |
register const char *lc; |
1221 |
register const char *rc; |
1222 |
register STRLEN len; |
1223 |
STRLEN lensave; |
1224 |
const char *lsave; |
1225 |
const char *rsave; |
1226 |
bool left_utf; |
1227 |
bool right_utf; |
1228 |
STRLEN needlen = 0; |
1229 |
|
1230 |
PERL_ARGS_ASSERT_DO_VOP; |
1231 |
|
1232 |
if (sv != left || (optype != OP_BIT_AND && !SvOK(sv) && !SvGMAGICAL(sv))) |
1233 |
sv_setpvs(sv, ""); /* avoid undef warning on |= and ^= */ |
1234 |
if (sv == left) { |
1235 |
lsave = lc = SvPV_force_nomg(left, leftlen); |
1236 |
} |
1237 |
else { |
1238 |
lsave = lc = SvPV_nomg_const(left, leftlen); |
1239 |
SvPV_force_nomg_nolen(sv); |
1240 |
} |
1241 |
rsave = rc = SvPV_nomg_const(right, rightlen); |
1242 |
|
1243 |
/* This need to come after SvPV to ensure that string overloading has |
1244 |
fired off. */ |
1245 |
|
1246 |
left_utf = DO_UTF8(left); |
1247 |
right_utf = DO_UTF8(right); |
1248 |
|
1249 |
if (left_utf && !right_utf) { |
1250 |
/* Avoid triggering overloading again by using temporaries. |
1251 |
Maybe there should be a variant of sv_utf8_upgrade that takes pvn |
1252 |
*/ |
1253 |
right = newSVpvn_flags(rsave, rightlen, SVs_TEMP); |
1254 |
sv_utf8_upgrade(right); |
1255 |
rsave = rc = SvPV_nomg_const(right, rightlen); |
1256 |
right_utf = TRUE; |
1257 |
} |
1258 |
else if (!left_utf && right_utf) { |
1259 |
left = newSVpvn_flags(lsave, leftlen, SVs_TEMP); |
1260 |
sv_utf8_upgrade(left); |
1261 |
lsave = lc = SvPV_nomg_const(left, leftlen); |
1262 |
left_utf = TRUE; |
1263 |
} |
1264 |
|
1265 |
len = leftlen < rightlen ? leftlen : rightlen; |
1266 |
lensave = len; |
1267 |
SvCUR_set(sv, len); |
1268 |
(void)SvPOK_only(sv); |
1269 |
if ((left_utf || right_utf) && (sv == left || sv == right)) { |
1270 |
needlen = optype == OP_BIT_AND ? len : leftlen + rightlen; |
1271 |
Newxz(dc, needlen + 1, char); |
1272 |
} |
1273 |
else if (SvOK(sv) || SvTYPE(sv) > SVt_PVMG) { |
1274 |
dc = SvPV_force_nomg_nolen(sv); |
1275 |
if (SvLEN(sv) < len + 1) { |
1276 |
dc = SvGROW(sv, len + 1); |
1277 |
(void)memzero(dc + SvCUR(sv), len - SvCUR(sv) + 1); |
1278 |
} |
1279 |
if (optype != OP_BIT_AND && (left_utf || right_utf)) |
1280 |
dc = SvGROW(sv, leftlen + rightlen + 1); |
1281 |
} |
1282 |
else { |
1283 |
needlen = optype == OP_BIT_AND |
1284 |
? len : (leftlen > rightlen ? leftlen : rightlen); |
1285 |
Newxz(dc, needlen + 1, char); |
1286 |
sv_usepvn_flags(sv, dc, needlen, SV_HAS_TRAILING_NUL); |
1287 |
dc = SvPVX(sv); /* sv_usepvn() calls Renew() */ |
1288 |
} |
1289 |
if (left_utf || right_utf) { |
1290 |
UV duc, luc, ruc; |
1291 |
char *dcorig = dc; |
1292 |
char *dcsave = NULL; |
1293 |
STRLEN lulen = leftlen; |
1294 |
STRLEN rulen = rightlen; |
1295 |
STRLEN ulen; |
1296 |
|
1297 |
switch (optype) { |
1298 |
case OP_BIT_AND: |
1299 |
while (lulen && rulen) { |
1300 |
luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
1301 |
lc += ulen; |
1302 |
lulen -= ulen; |
1303 |
ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
1304 |
rc += ulen; |
1305 |
rulen -= ulen; |
1306 |
duc = luc & ruc; |
1307 |
dc = (char*)uvchr_to_utf8((U8*)dc, duc); |
1308 |
} |
1309 |
if (sv == left || sv == right) |
1310 |
(void)sv_usepvn(sv, dcorig, needlen); |
1311 |
SvCUR_set(sv, dc - dcorig); |
1312 |
break; |
1313 |
case OP_BIT_XOR: |
1314 |
while (lulen && rulen) { |
1315 |
luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
1316 |
lc += ulen; |
1317 |
lulen -= ulen; |
1318 |
ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
1319 |
rc += ulen; |
1320 |
rulen -= ulen; |
1321 |
duc = luc ^ ruc; |
1322 |
dc = (char*)uvchr_to_utf8((U8*)dc, duc); |
1323 |
} |
1324 |
goto mop_up_utf; |
1325 |
case OP_BIT_OR: |
1326 |
while (lulen && rulen) { |
1327 |
luc = utf8n_to_uvchr((U8*)lc, lulen, &ulen, UTF8_ALLOW_ANYUV); |
1328 |
lc += ulen; |
1329 |
lulen -= ulen; |
1330 |
ruc = utf8n_to_uvchr((U8*)rc, rulen, &ulen, UTF8_ALLOW_ANYUV); |
1331 |
rc += ulen; |
1332 |
rulen -= ulen; |
1333 |
duc = luc | ruc; |
1334 |
dc = (char*)uvchr_to_utf8((U8*)dc, duc); |
1335 |
} |
1336 |
mop_up_utf: |
1337 |
if (rulen) |
1338 |
dcsave = savepvn(rc, rulen); |
1339 |
else if (lulen) |
1340 |
dcsave = savepvn(lc, lulen); |
1341 |
if (sv == left || sv == right) |
1342 |
(void)sv_usepvn(sv, dcorig, needlen); /* Uses Renew(). */ |
1343 |
SvCUR_set(sv, dc - dcorig); |
1344 |
if (rulen) |
1345 |
sv_catpvn(sv, dcsave, rulen); |
1346 |
else if (lulen) |
1347 |
sv_catpvn(sv, dcsave, lulen); |
1348 |
else |
1349 |
*SvEND(sv) = '\0'; |
1350 |
Safefree(dcsave); |
1351 |
break; |
1352 |
default: |
1353 |
if (sv == left || sv == right) |
1354 |
Safefree(dcorig); |
1355 |
Perl_croak(aTHX_ "panic: do_vop called for op %u (%s)", |
1356 |
(unsigned)optype, PL_op_name[optype]); |
1357 |
} |
1358 |
SvUTF8_on(sv); |
1359 |
goto finish; |
1360 |
} |
1361 |
else |
1362 |
#ifdef LIBERAL |
1363 |
if (len >= sizeof(long)*4 && |
1364 |
!((unsigned long)dc % sizeof(long)) && |
1365 |
!((unsigned long)lc % sizeof(long)) && |
1366 |
!((unsigned long)rc % sizeof(long))) /* It's almost always aligned... */ |
1367 |
{ |
1368 |
const STRLEN remainder = len % (sizeof(long)*4); |
1369 |
len /= (sizeof(long)*4); |
1370 |
|
1371 |
dl = (long*)dc; |
1372 |
ll = (long*)lc; |
1373 |
rl = (long*)rc; |
1374 |
|
1375 |
switch (optype) { |
1376 |
case OP_BIT_AND: |
1377 |
while (len--) { |
1378 |
*dl++ = *ll++ & *rl++; |
1379 |
*dl++ = *ll++ & *rl++; |
1380 |
*dl++ = *ll++ & *rl++; |
1381 |
*dl++ = *ll++ & *rl++; |
1382 |
} |
1383 |
break; |
1384 |
case OP_BIT_XOR: |
1385 |
while (len--) { |
1386 |
*dl++ = *ll++ ^ *rl++; |
1387 |
*dl++ = *ll++ ^ *rl++; |
1388 |
*dl++ = *ll++ ^ *rl++; |
1389 |
*dl++ = *ll++ ^ *rl++; |
1390 |
} |
1391 |
break; |
1392 |
case OP_BIT_OR: |
1393 |
while (len--) { |
1394 |
*dl++ = *ll++ | *rl++; |
1395 |
*dl++ = *ll++ | *rl++; |
1396 |
*dl++ = *ll++ | *rl++; |
1397 |
*dl++ = *ll++ | *rl++; |
1398 |
} |
1399 |
} |
1400 |
|
1401 |
dc = (char*)dl; |
1402 |
lc = (char*)ll; |
1403 |
rc = (char*)rl; |
1404 |
|
1405 |
len = remainder; |
1406 |
} |
1407 |
#endif |
1408 |
{ |
1409 |
switch (optype) { |
1410 |
case OP_BIT_AND: |
1411 |
while (len--) |
1412 |
*dc++ = *lc++ & *rc++; |
1413 |
*dc = '\0'; |
1414 |
break; |
1415 |
case OP_BIT_XOR: |
1416 |
while (len--) |
1417 |
*dc++ = *lc++ ^ *rc++; |
1418 |
goto mop_up; |
1419 |
case OP_BIT_OR: |
1420 |
while (len--) |
1421 |
*dc++ = *lc++ | *rc++; |
1422 |
mop_up: |
1423 |
len = lensave; |
1424 |
if (rightlen > len) |
1425 |
sv_catpvn(sv, rsave + len, rightlen - len); |
1426 |
else if (leftlen > (STRLEN)len) |
1427 |
sv_catpvn(sv, lsave + len, leftlen - len); |
1428 |
else |
1429 |
*SvEND(sv) = '\0'; |
1430 |
break; |
1431 |
} |
1432 |
} |
1433 |
finish: |
1434 |
SvTAINT(sv); |
1435 |
} |
1436 |
|
1437 |
OP * |
1438 |
Perl_do_kv(pTHX) |
1439 |
{ |
1440 |
dVAR; |
1441 |
dSP; |
1442 |
HV * const hv = MUTABLE_HV(POPs); |
1443 |
HV *keys; |
1444 |
register HE *entry; |
1445 |
const I32 gimme = GIMME_V; |
1446 |
const I32 dokv = (PL_op->op_type == OP_RV2HV || PL_op->op_type == OP_PADHV); |
1447 |
const I32 dokeys = dokv || (PL_op->op_type == OP_KEYS); |
1448 |
const I32 dovalues = dokv || (PL_op->op_type == OP_VALUES); |
1449 |
|
1450 |
if (!hv) { |
1451 |
if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */ |
1452 |
dTARGET; /* make sure to clear its target here */ |
1453 |
if (SvTYPE(TARG) == SVt_PVLV) |
1454 |
LvTARG(TARG) = NULL; |
1455 |
PUSHs(TARG); |
1456 |
} |
1457 |
RETURN; |
1458 |
} |
1459 |
|
1460 |
keys = hv; |
1461 |
(void)hv_iterinit(keys); /* always reset iterator regardless */ |
1462 |
|
1463 |
if (gimme == G_VOID) |
1464 |
RETURN; |
1465 |
|
1466 |
if (gimme == G_SCALAR) { |
1467 |
IV i; |
1468 |
dTARGET; |
1469 |
|
1470 |
if (PL_op->op_flags & OPf_MOD || LVRET) { /* lvalue */ |
1471 |
if (SvTYPE(TARG) < SVt_PVLV) { |
1472 |
sv_upgrade(TARG, SVt_PVLV); |
1473 |
sv_magic(TARG, NULL, PERL_MAGIC_nkeys, NULL, 0); |
1474 |
} |
1475 |
LvTYPE(TARG) = 'k'; |
1476 |
if (LvTARG(TARG) != (const SV *)keys) { |
1477 |
if (LvTARG(TARG)) |
1478 |
SvREFCNT_dec(LvTARG(TARG)); |
1479 |
LvTARG(TARG) = SvREFCNT_inc_simple(keys); |
1480 |
} |
1481 |
PUSHs(TARG); |
1482 |
RETURN; |
1483 |
} |
1484 |
|
1485 |
if (! SvTIED_mg((const SV *)keys, PERL_MAGIC_tied) ) |
1486 |
{ |
1487 |
i = HvKEYS(keys); |
1488 |
} |
1489 |
else { |
1490 |
i = 0; |
1491 |
while (hv_iternext(keys)) i++; |
1492 |
} |
1493 |
PUSHi( i ); |
1494 |
RETURN; |
1495 |
} |
1496 |
|
1497 |
EXTEND(SP, HvKEYS(keys) * (dokeys + dovalues)); |
1498 |
|
1499 |
PUTBACK; /* hv_iternext and hv_iterval might clobber stack_sp */ |
1500 |
while ((entry = hv_iternext(keys))) { |
1501 |
SPAGAIN; |
1502 |
if (dokeys) { |
1503 |
SV* const sv = hv_iterkeysv(entry); |
1504 |
XPUSHs(sv); /* won't clobber stack_sp */ |
1505 |
} |
1506 |
if (dovalues) { |
1507 |
SV *tmpstr; |
1508 |
PUTBACK; |
1509 |
tmpstr = hv_iterval(hv,entry); |
1510 |
DEBUG_H(Perl_sv_setpvf(aTHX_ tmpstr, "%lu%%%d=%lu", |
1511 |
(unsigned long)HeHASH(entry), |
1512 |
(int)HvMAX(keys)+1, |
1513 |
(unsigned long)(HeHASH(entry) & HvMAX(keys)))); |
1514 |
SPAGAIN; |
1515 |
XPUSHs(tmpstr); |
1516 |
} |
1517 |
PUTBACK; |
1518 |
} |
1519 |
return NORMAL; |
1520 |
} |
1521 |
|
1522 |
/* |
1523 |
* Local variables: |
1524 |
* c-indentation-style: bsd |
1525 |
* c-basic-offset: 4 |
1526 |
* indent-tabs-mode: t |
1527 |
* End: |
1528 |
* |
1529 |
* ex: set ts=8 sts=4 sw=4 noet: |
1530 |
*/ |